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android-kvm / linux / 3b2c81d5feb250dfdcb0ef5825319f36c29f8336 / . / drivers / scsi / mpt3sas / mpt3sas_scsih.c
blob: f2a55aa5fe65036a3beabae5c0c6e9db835d2aab [file] [log] [blame]
/*
* Scsi Host Layer for MPT (Message Passing Technology) based controllers
*
* This code is based on drivers/scsi/mpt3sas/mpt3sas_scsih.c
* Copyright (C) 2012-2014 LSI Corporation
* Copyright (C) 2013-2014 Avago Technologies
* (mailto: MPT-FusionLinux.pdl@avagotech.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/blkdev.h>
#include <linux/sched.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/raid_class.h>
#include <linux/blk-mq-pci.h>
#include <linux/unaligned.h>
#include "mpt3sas_base.h"
#define RAID_CHANNEL 1
#define PCIE_CHANNEL 2
/* forward proto's */
static void _scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander);
static void _firmware_event_work(struct work_struct *work);
static void _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device);
static int _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle,
u8 retry_count, u8 is_pd);
static int _scsih_pcie_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle);
static void _scsih_pcie_device_remove_from_sml(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device);
static void
_scsih_pcie_check_device(struct MPT3SAS_ADAPTER *ioc, u16 handle);
static u8 _scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid);
static void _scsih_complete_devices_scanning(struct MPT3SAS_ADAPTER *ioc);
/* global parameters */
LIST_HEAD(mpt3sas_ioc_list);
/* global ioc lock for list operations */
DEFINE_SPINLOCK(gioc_lock);
MODULE_AUTHOR(MPT3SAS_AUTHOR);
MODULE_DESCRIPTION(MPT3SAS_DESCRIPTION);
MODULE_LICENSE("GPL");
MODULE_VERSION(MPT3SAS_DRIVER_VERSION);
MODULE_ALIAS("mpt2sas");
/* local parameters */
static u8 scsi_io_cb_idx = -1;
static u8 tm_cb_idx = -1;
static u8 ctl_cb_idx = -1;
static u8 base_cb_idx = -1;
static u8 port_enable_cb_idx = -1;
static u8 transport_cb_idx = -1;
static u8 scsih_cb_idx = -1;
static u8 config_cb_idx = -1;
static int mpt2_ids;
static int mpt3_ids;
static u8 tm_tr_cb_idx = -1 ;
static u8 tm_tr_volume_cb_idx = -1 ;
static u8 tm_sas_control_cb_idx = -1;
/* command line options */
static u32 logging_level;
MODULE_PARM_DESC(logging_level,
" bits for enabling additional logging info (default=0)");
static ushort max_sectors = 0xFFFF;
module_param(max_sectors, ushort, 0444);
MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 32767 default=32767");
static int missing_delay[2] = {-1, -1};
module_param_array(missing_delay, int, NULL, 0444);
MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay");
/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
#define MPT3SAS_MAX_LUN (16895)
static u64 max_lun = MPT3SAS_MAX_LUN;
module_param(max_lun, ullong, 0444);
MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
static ushort hbas_to_enumerate;
module_param(hbas_to_enumerate, ushort, 0444);
MODULE_PARM_DESC(hbas_to_enumerate,
" 0 - enumerates both SAS 2.0 & SAS 3.0 generation HBAs\n \
1 - enumerates only SAS 2.0 generation HBAs\n \
2 - enumerates only SAS 3.0 generation HBAs (default=0)");
/* diag_buffer_enable is bitwise
* bit 0 set = TRACE
* bit 1 set = SNAPSHOT
* bit 2 set = EXTENDED
*
* Either bit can be set, or both
*/
static int diag_buffer_enable = -1;
module_param(diag_buffer_enable, int, 0444);
MODULE_PARM_DESC(diag_buffer_enable,
" post diag buffers (TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
static int disable_discovery = -1;
module_param(disable_discovery, int, 0444);
MODULE_PARM_DESC(disable_discovery, " disable discovery ");
/* permit overriding the host protection capabilities mask (EEDP/T10 PI) */
static int prot_mask = -1;
module_param(prot_mask, int, 0444);
MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=7 ");
static bool enable_sdev_max_qd;
module_param(enable_sdev_max_qd, bool, 0444);
MODULE_PARM_DESC(enable_sdev_max_qd,
"Enable sdev max qd as can_queue, def=disabled(0)");
static int multipath_on_hba = -1;
module_param(multipath_on_hba, int, 0);
MODULE_PARM_DESC(multipath_on_hba,
"Multipath support to add same target device\n\t\t"
"as many times as it is visible to HBA from various paths\n\t\t"
"(by default:\n\t\t"
"\t SAS 2.0 & SAS 3.0 HBA - This will be disabled,\n\t\t"
"\t SAS 3.5 HBA - This will be enabled)");
static int host_tagset_enable = 1;
module_param(host_tagset_enable, int, 0444);
MODULE_PARM_DESC(host_tagset_enable,
"Shared host tagset enable/disable Default: enable(1)");
/* raid transport support */
static struct raid_template *mpt3sas_raid_template;
static struct raid_template *mpt2sas_raid_template;
/**
* struct sense_info - common structure for obtaining sense keys
* @skey: sense key
* @asc: additional sense code
* @ascq: additional sense code qualifier
*/
struct sense_info {
u8 skey;
u8 asc;
u8 ascq;
};
#define MPT3SAS_PROCESS_TRIGGER_DIAG (0xFFFB)
#define MPT3SAS_TURN_ON_PFA_LED (0xFFFC)
#define MPT3SAS_PORT_ENABLE_COMPLETE (0xFFFD)
#define MPT3SAS_ABRT_TASK_SET (0xFFFE)
#define MPT3SAS_REMOVE_UNRESPONDING_DEVICES (0xFFFF)
/**
* struct fw_event_work - firmware event struct
* @list: link list framework
* @work: work object (ioc->fault_reset_work_q)
* @ioc: per adapter object
* @device_handle: device handle
* @VF_ID: virtual function id
* @VP_ID: virtual port id
* @ignore: flag meaning this event has been marked to ignore
* @event: firmware event MPI2_EVENT_XXX defined in mpi2_ioc.h
* @refcount: kref for this event
* @event_data: reply event data payload follows
*
* This object stored on ioc->fw_event_list.
*/
struct fw_event_work {
struct list_head list;
struct work_struct work;
struct MPT3SAS_ADAPTER *ioc;
u16 device_handle;
u8 VF_ID;
u8 VP_ID;
u8 ignore;
u16 event;
struct kref refcount;
char event_data[] __aligned(4);
};
static void fw_event_work_free(struct kref *r)
{
kfree(container_of(r, struct fw_event_work, refcount));
}
static void fw_event_work_get(struct fw_event_work *fw_work)
{
kref_get(&fw_work->refcount);
}
static void fw_event_work_put(struct fw_event_work *fw_work)
{
kref_put(&fw_work->refcount, fw_event_work_free);
}
static struct fw_event_work *alloc_fw_event_work(int len)
{
struct fw_event_work *fw_event;
fw_event = kzalloc(sizeof(*fw_event) + len, GFP_ATOMIC);
if (!fw_event)
return NULL;
kref_init(&fw_event->refcount);
return fw_event;
}
/**
* struct _scsi_io_transfer - scsi io transfer
* @handle: sas device handle (assigned by firmware)
* @is_raid: flag set for hidden raid components
* @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
* @data_length: data transfer length
* @data_dma: dma pointer to data
* @sense: sense data
* @lun: lun number
* @cdb_length: cdb length
* @cdb: cdb contents
* @timeout: timeout for this command
* @VF_ID: virtual function id
* @VP_ID: virtual port id
* @valid_reply: flag set for reply message
* @sense_length: sense length
* @ioc_status: ioc status
* @scsi_state: scsi state
* @scsi_status: scsi staus
* @log_info: log information
* @transfer_length: data length transfer when there is a reply message
*
* Used for sending internal scsi commands to devices within this module.
* Refer to _scsi_send_scsi_io().
*/
struct _scsi_io_transfer {
u16 handle;
u8 is_raid;
enum dma_data_direction dir;
u32 data_length;
dma_addr_t data_dma;
u8 sense[SCSI_SENSE_BUFFERSIZE];
u32 lun;
u8 cdb_length;
u8 cdb[32];
u8 timeout;
u8 VF_ID;
u8 VP_ID;
u8 valid_reply;
/* the following bits are only valid when 'valid_reply = 1' */
u32 sense_length;
u16 ioc_status;
u8 scsi_state;
u8 scsi_status;
u32 log_info;
u32 transfer_length;
};
/**
* _scsih_set_debug_level - global setting of ioc->logging_level.
* @val: value of the parameter to be set
* @kp: pointer to kernel_param structure
*
* Note: The logging levels are defined in mpt3sas_debug.h.
*/
static int
_scsih_set_debug_level(const char *val, const struct kernel_param *kp)
{
int ret = param_set_int(val, kp);
struct MPT3SAS_ADAPTER *ioc;
if (ret)
return ret;
pr_info("setting logging_level(0x%08x)\n", logging_level);
spin_lock(&gioc_lock);
list_for_each_entry(ioc, &mpt3sas_ioc_list, list)
ioc->logging_level = logging_level;
spin_unlock(&gioc_lock);
return 0;
}
module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
&logging_level, 0644);
/**
* _scsih_srch_boot_sas_address - search based on sas_address
* @sas_address: sas address
* @boot_device: boot device object from bios page 2
*
* Return: 1 when there's a match, 0 means no match.
*/
static inline int
_scsih_srch_boot_sas_address(u64 sas_address,
Mpi2BootDeviceSasWwid_t *boot_device)
{
return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
}
/**
* _scsih_srch_boot_device_name - search based on device name
* @device_name: device name specified in INDENTIFY fram
* @boot_device: boot device object from bios page 2
*
* Return: 1 when there's a match, 0 means no match.
*/
static inline int
_scsih_srch_boot_device_name(u64 device_name,
Mpi2BootDeviceDeviceName_t *boot_device)
{
return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
}
/**
* _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
* @enclosure_logical_id: enclosure logical id
* @slot_number: slot number
* @boot_device: boot device object from bios page 2
*
* Return: 1 when there's a match, 0 means no match.
*/
static inline int
_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
Mpi2BootDeviceEnclosureSlot_t *boot_device)
{
return (enclosure_logical_id == le64_to_cpu(boot_device->
EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
SlotNumber)) ? 1 : 0;
}
/**
* mpt3sas_get_port_by_id - get hba port entry corresponding to provided
* port number from port list
* @ioc: per adapter object
* @port_id: port number
* @bypass_dirty_port_flag: when set look the matching hba port entry even
* if hba port entry is marked as dirty.
*
* Search for hba port entry corresponding to provided port number,
* if available return port object otherwise return NULL.
*/
struct hba_port *
mpt3sas_get_port_by_id(struct MPT3SAS_ADAPTER *ioc,
u8 port_id, u8 bypass_dirty_port_flag)
{
struct hba_port *port, *port_next;
/*
* When multipath_on_hba is disabled then
* search the hba_port entry using default
* port id i.e. 255
*/
if (!ioc->multipath_on_hba)
port_id = MULTIPATH_DISABLED_PORT_ID;
list_for_each_entry_safe(port, port_next,
&ioc->port_table_list, list) {
if (port->port_id != port_id)
continue;
if (bypass_dirty_port_flag)
return port;
if (port->flags & HBA_PORT_FLAG_DIRTY_PORT)
continue;
return port;
}
/*
* Allocate hba_port object for default port id (i.e. 255)
* when multipath_on_hba is disabled for the HBA.
* And add this object to port_table_list.
*/
if (!ioc->multipath_on_hba) {
port = kzalloc(sizeof(struct hba_port), GFP_ATOMIC);
if (!port)
return NULL;
port->port_id = port_id;
ioc_info(ioc,
"hba_port entry: %p, port: %d is added to hba_port list\n",
port, port->port_id);
list_add_tail(&port->list,
&ioc->port_table_list);
return port;
}
return NULL;
}
/**
* mpt3sas_get_vphy_by_phy - get virtual_phy object corresponding to phy number
* @ioc: per adapter object
* @port: hba_port object
* @phy: phy number
*
* Return virtual_phy object corresponding to phy number.
*/
struct virtual_phy *
mpt3sas_get_vphy_by_phy(struct MPT3SAS_ADAPTER *ioc,
struct hba_port *port, u32 phy)
{
struct virtual_phy *vphy, *vphy_next;
if (!port->vphys_mask)
return NULL;
list_for_each_entry_safe(vphy, vphy_next, &port->vphys_list, list) {
if (vphy->phy_mask & (1 << phy))
return vphy;
}
return NULL;
}
/**
* _scsih_is_boot_device - search for matching boot device.
* @sas_address: sas address
* @device_name: device name specified in INDENTIFY fram
* @enclosure_logical_id: enclosure logical id
* @slot: slot number
* @form: specifies boot device form
* @boot_device: boot device object from bios page 2
*
* Return: 1 when there's a match, 0 means no match.
*/
static int
_scsih_is_boot_device(u64 sas_address, u64 device_name,
u64 enclosure_logical_id, u16 slot, u8 form,
Mpi2BiosPage2BootDevice_t *boot_device)
{
int rc = 0;
switch (form) {
case MPI2_BIOSPAGE2_FORM_SAS_WWID:
if (!sas_address)
break;
rc = _scsih_srch_boot_sas_address(
sas_address, &boot_device->SasWwid);
break;
case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
if (!enclosure_logical_id)
break;
rc = _scsih_srch_boot_encl_slot(
enclosure_logical_id,
slot, &boot_device->EnclosureSlot);
break;
case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
if (!device_name)
break;
rc = _scsih_srch_boot_device_name(
device_name, &boot_device->DeviceName);
break;
case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
break;
}
return rc;
}
/**
* _scsih_get_sas_address - set the sas_address for given device handle
* @ioc: ?
* @handle: device handle
* @sas_address: sas address
*
* Return: 0 success, non-zero when failure
*/
static int
_scsih_get_sas_address(struct MPT3SAS_ADAPTER *ioc, u16 handle,
u64 *sas_address)
{
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u32 ioc_status;
*sas_address = 0;
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -ENXIO;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
/* For HBA, vSES doesn't return HBA SAS address. Instead return
* vSES's sas address.
*/
if ((handle <= ioc->sas_hba.num_phys) &&
(!(le32_to_cpu(sas_device_pg0.DeviceInfo) &
MPI2_SAS_DEVICE_INFO_SEP)))
*sas_address = ioc->sas_hba.sas_address;
else
*sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
return 0;
}
/* we hit this because the given parent handle doesn't exist */
if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
return -ENXIO;
/* else error case */
ioc_err(ioc, "handle(0x%04x), ioc_status(0x%04x), failure at %s:%d/%s()!\n",
handle, ioc_status, __FILE__, __LINE__, __func__);
return -EIO;
}
/**
* _scsih_determine_boot_device - determine boot device.
* @ioc: per adapter object
* @device: sas_device or pcie_device object
* @channel: SAS or PCIe channel
*
* Determines whether this device should be first reported device to
* to scsi-ml or sas transport, this purpose is for persistent boot device.
* There are primary, alternate, and current entries in bios page 2. The order
* priority is primary, alternate, then current. This routine saves
* the corresponding device object.
* The saved data to be used later in _scsih_probe_boot_devices().
*/
static void
_scsih_determine_boot_device(struct MPT3SAS_ADAPTER *ioc, void *device,
u32 channel)
{
struct _sas_device *sas_device;
struct _pcie_device *pcie_device;
struct _raid_device *raid_device;
u64 sas_address;
u64 device_name;
u64 enclosure_logical_id;
u16 slot;
/* only process this function when driver loads */
if (!ioc->is_driver_loading)
return;
/* no Bios, return immediately */
if (!ioc->bios_pg3.BiosVersion)
return;
if (channel == RAID_CHANNEL) {
raid_device = device;
sas_address = raid_device->wwid;
device_name = 0;
enclosure_logical_id = 0;
slot = 0;
} else if (channel == PCIE_CHANNEL) {
pcie_device = device;
sas_address = pcie_device->wwid;
device_name = 0;
enclosure_logical_id = 0;
slot = 0;
} else {
sas_device = device;
sas_address = sas_device->sas_address;
device_name = sas_device->device_name;
enclosure_logical_id = sas_device->enclosure_logical_id;
slot = sas_device->slot;
}
if (!ioc->req_boot_device.device) {
if (_scsih_is_boot_device(sas_address, device_name,
enclosure_logical_id, slot,
(ioc->bios_pg2.ReqBootDeviceForm &
MPI2_BIOSPAGE2_FORM_MASK),
&ioc->bios_pg2.RequestedBootDevice)) {
dinitprintk(ioc,
ioc_info(ioc, "%s: req_boot_device(0x%016llx)\n",
__func__, (u64)sas_address));
ioc->req_boot_device.device = device;
ioc->req_boot_device.channel = channel;
}
}
if (!ioc->req_alt_boot_device.device) {
if (_scsih_is_boot_device(sas_address, device_name,
enclosure_logical_id, slot,
(ioc->bios_pg2.ReqAltBootDeviceForm &
MPI2_BIOSPAGE2_FORM_MASK),
&ioc->bios_pg2.RequestedAltBootDevice)) {
dinitprintk(ioc,
ioc_info(ioc, "%s: req_alt_boot_device(0x%016llx)\n",
__func__, (u64)sas_address));
ioc->req_alt_boot_device.device = device;
ioc->req_alt_boot_device.channel = channel;
}
}
if (!ioc->current_boot_device.device) {
if (_scsih_is_boot_device(sas_address, device_name,
enclosure_logical_id, slot,
(ioc->bios_pg2.CurrentBootDeviceForm &
MPI2_BIOSPAGE2_FORM_MASK),
&ioc->bios_pg2.CurrentBootDevice)) {
dinitprintk(ioc,
ioc_info(ioc, "%s: current_boot_device(0x%016llx)\n",
__func__, (u64)sas_address));
ioc->current_boot_device.device = device;
ioc->current_boot_device.channel = channel;
}
}
}
static struct _sas_device *
__mpt3sas_get_sdev_from_target(struct MPT3SAS_ADAPTER *ioc,
struct MPT3SAS_TARGET *tgt_priv)
{
struct _sas_device *ret;
assert_spin_locked(&ioc->sas_device_lock);
ret = tgt_priv->sas_dev;
if (ret)
sas_device_get(ret);
return ret;
}
static struct _sas_device *
mpt3sas_get_sdev_from_target(struct MPT3SAS_ADAPTER *ioc,
struct MPT3SAS_TARGET *tgt_priv)
{
struct _sas_device *ret;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
ret = __mpt3sas_get_sdev_from_target(ioc, tgt_priv);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return ret;
}
static struct _pcie_device *
__mpt3sas_get_pdev_from_target(struct MPT3SAS_ADAPTER *ioc,
struct MPT3SAS_TARGET *tgt_priv)
{
struct _pcie_device *ret;
assert_spin_locked(&ioc->pcie_device_lock);
ret = tgt_priv->pcie_dev;
if (ret)
pcie_device_get(ret);
return ret;
}
/**
* mpt3sas_get_pdev_from_target - pcie device search
* @ioc: per adapter object
* @tgt_priv: starget private object
*
* Context: This function will acquire ioc->pcie_device_lock and will release
* before returning the pcie_device object.
*
* This searches for pcie_device from target, then return pcie_device object.
*/
static struct _pcie_device *
mpt3sas_get_pdev_from_target(struct MPT3SAS_ADAPTER *ioc,
struct MPT3SAS_TARGET *tgt_priv)
{
struct _pcie_device *ret;
unsigned long flags;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
ret = __mpt3sas_get_pdev_from_target(ioc, tgt_priv);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
return ret;
}
/**
* __mpt3sas_get_sdev_by_rphy - sas device search
* @ioc: per adapter object
* @rphy: sas_rphy pointer
*
* Context: This function will acquire ioc->sas_device_lock and will release
* before returning the sas_device object.
*
* This searches for sas_device from rphy object
* then return sas_device object.
*/
struct _sas_device *
__mpt3sas_get_sdev_by_rphy(struct MPT3SAS_ADAPTER *ioc,
struct sas_rphy *rphy)
{
struct _sas_device *sas_device;
assert_spin_locked(&ioc->sas_device_lock);
list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
if (sas_device->rphy != rphy)
continue;
sas_device_get(sas_device);
return sas_device;
}
sas_device = NULL;
list_for_each_entry(sas_device, &ioc->sas_device_init_list, list) {
if (sas_device->rphy != rphy)
continue;
sas_device_get(sas_device);
return sas_device;
}
return NULL;
}
/**
* __mpt3sas_get_sdev_by_addr - get _sas_device object corresponding to provided
* sas address from sas_device_list list
* @ioc: per adapter object
* @sas_address: device sas address
* @port: port number
*
* Search for _sas_device object corresponding to provided sas address,
* if available return _sas_device object address otherwise return NULL.
*/
struct _sas_device *
__mpt3sas_get_sdev_by_addr(struct MPT3SAS_ADAPTER *ioc,
u64 sas_address, struct hba_port *port)
{
struct _sas_device *sas_device;
if (!port)
return NULL;
assert_spin_locked(&ioc->sas_device_lock);
list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
if (sas_device->sas_address != sas_address)
continue;
if (sas_device->port != port)
continue;
sas_device_get(sas_device);
return sas_device;
}
list_for_each_entry(sas_device, &ioc->sas_device_init_list, list) {
if (sas_device->sas_address != sas_address)
continue;
if (sas_device->port != port)
continue;
sas_device_get(sas_device);
return sas_device;
}
return NULL;
}
/**
* mpt3sas_get_sdev_by_addr - sas device search
* @ioc: per adapter object
* @sas_address: sas address
* @port: hba port entry
* Context: Calling function should acquire ioc->sas_device_lock
*
* This searches for sas_device based on sas_address & port number,
* then return sas_device object.
*/
struct _sas_device *
mpt3sas_get_sdev_by_addr(struct MPT3SAS_ADAPTER *ioc,
u64 sas_address, struct hba_port *port)
{
struct _sas_device *sas_device;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
sas_address, port);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return sas_device;
}
static struct _sas_device *
__mpt3sas_get_sdev_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_device *sas_device;
assert_spin_locked(&ioc->sas_device_lock);
list_for_each_entry(sas_device, &ioc->sas_device_list, list)
if (sas_device->handle == handle)
goto found_device;
list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
if (sas_device->handle == handle)
goto found_device;
return NULL;
found_device:
sas_device_get(sas_device);
return sas_device;
}
/**
* mpt3sas_get_sdev_by_handle - sas device search
* @ioc: per adapter object
* @handle: sas device handle (assigned by firmware)
* Context: Calling function should acquire ioc->sas_device_lock
*
* This searches for sas_device based on sas_address, then return sas_device
* object.
*/
struct _sas_device *
mpt3sas_get_sdev_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_device *sas_device;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return sas_device;
}
/**
* _scsih_display_enclosure_chassis_info - display device location info
* @ioc: per adapter object
* @sas_device: per sas device object
* @sdev: scsi device struct
* @starget: scsi target struct
*/
static void
_scsih_display_enclosure_chassis_info(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device, struct scsi_device *sdev,
struct scsi_target *starget)
{
if (sdev) {
if (sas_device->enclosure_handle != 0)
sdev_printk(KERN_INFO, sdev,
"enclosure logical id (0x%016llx), slot(%d) \n",
(unsigned long long)
sas_device->enclosure_logical_id,
sas_device->slot);
if (sas_device->connector_name[0] != '\0')
sdev_printk(KERN_INFO, sdev,
"enclosure level(0x%04x), connector name( %s)\n",
sas_device->enclosure_level,
sas_device->connector_name);
if (sas_device->is_chassis_slot_valid)
sdev_printk(KERN_INFO, sdev, "chassis slot(0x%04x)\n",
sas_device->chassis_slot);
} else if (starget) {
if (sas_device->enclosure_handle != 0)
starget_printk(KERN_INFO, starget,
"enclosure logical id(0x%016llx), slot(%d) \n",
(unsigned long long)
sas_device->enclosure_logical_id,
sas_device->slot);
if (sas_device->connector_name[0] != '\0')
starget_printk(KERN_INFO, starget,
"enclosure level(0x%04x), connector name( %s)\n",
sas_device->enclosure_level,
sas_device->connector_name);
if (sas_device->is_chassis_slot_valid)
starget_printk(KERN_INFO, starget,
"chassis slot(0x%04x)\n",
sas_device->chassis_slot);
} else {
if (sas_device->enclosure_handle != 0)
ioc_info(ioc, "enclosure logical id(0x%016llx), slot(%d)\n",
(u64)sas_device->enclosure_logical_id,
sas_device->slot);
if (sas_device->connector_name[0] != '\0')
ioc_info(ioc, "enclosure level(0x%04x), connector name( %s)\n",
sas_device->enclosure_level,
sas_device->connector_name);
if (sas_device->is_chassis_slot_valid)
ioc_info(ioc, "chassis slot(0x%04x)\n",
sas_device->chassis_slot);
}
}
/**
* _scsih_sas_device_remove - remove sas_device from list.
* @ioc: per adapter object
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
* If sas_device is on the list, remove it and decrement its reference count.
*/
static void
_scsih_sas_device_remove(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
if (!sas_device)
return;
ioc_info(ioc, "removing handle(0x%04x), sas_addr(0x%016llx)\n",
sas_device->handle, (u64)sas_device->sas_address);
_scsih_display_enclosure_chassis_info(ioc, sas_device, NULL, NULL);
/*
* The lock serializes access to the list, but we still need to verify
* that nobody removed the entry while we were waiting on the lock.
*/
spin_lock_irqsave(&ioc->sas_device_lock, flags);
if (!list_empty(&sas_device->list)) {
list_del_init(&sas_device->list);
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_device_remove_by_handle - removing device object by handle
* @ioc: per adapter object
* @handle: device handle
*/
static void
_scsih_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_device *sas_device;
unsigned long flags;
if (ioc->shost_recovery)
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
list_del_init(&sas_device->list);
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device) {
_scsih_remove_device(ioc, sas_device);
sas_device_put(sas_device);
}
}
/**
* mpt3sas_device_remove_by_sas_address - removing device object by
* sas address & port number
* @ioc: per adapter object
* @sas_address: device sas_address
* @port: hba port entry
*
* Return nothing.
*/
void
mpt3sas_device_remove_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
u64 sas_address, struct hba_port *port)
{
struct _sas_device *sas_device;
unsigned long flags;
if (ioc->shost_recovery)
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_addr(ioc, sas_address, port);
if (sas_device) {
list_del_init(&sas_device->list);
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device) {
_scsih_remove_device(ioc, sas_device);
sas_device_put(sas_device);
}
}
/**
* _scsih_sas_device_add - insert sas_device to the list.
* @ioc: per adapter object
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
* Adding new object to the ioc->sas_device_list.
*/
static void
_scsih_sas_device_add(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
dewtprintk(ioc,
ioc_info(ioc, "%s: handle(0x%04x), sas_addr(0x%016llx)\n",
__func__, sas_device->handle,
(u64)sas_device->sas_address));
dewtprintk(ioc, _scsih_display_enclosure_chassis_info(ioc, sas_device,
NULL, NULL));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device_get(sas_device);
list_add_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (ioc->hide_drives) {
clear_bit(sas_device->handle, ioc->pend_os_device_add);
return;
}
if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
sas_device->sas_address_parent, sas_device->port)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
/*
* When asyn scanning is enabled, its not possible to remove
* devices while scanning is turned on due to an oops in
* scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start()
*/
if (!ioc->is_driver_loading) {
mpt3sas_transport_port_remove(ioc,
sas_device->sas_address,
sas_device->sas_address_parent,
sas_device->port);
_scsih_sas_device_remove(ioc, sas_device);
}
} else
clear_bit(sas_device->handle, ioc->pend_os_device_add);
}
/**
* _scsih_sas_device_init_add - insert sas_device to the list.
* @ioc: per adapter object
* @sas_device: the sas_device object
* Context: This function will acquire ioc->sas_device_lock.
*
* Adding new object at driver load time to the ioc->sas_device_init_list.
*/
static void
_scsih_sas_device_init_add(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
dewtprintk(ioc,
ioc_info(ioc, "%s: handle(0x%04x), sas_addr(0x%016llx)\n",
__func__, sas_device->handle,
(u64)sas_device->sas_address));
dewtprintk(ioc, _scsih_display_enclosure_chassis_info(ioc, sas_device,
NULL, NULL));
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device_get(sas_device);
list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
_scsih_determine_boot_device(ioc, sas_device, 0);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
static struct _pcie_device *
__mpt3sas_get_pdev_by_wwid(struct MPT3SAS_ADAPTER *ioc, u64 wwid)
{
struct _pcie_device *pcie_device;
assert_spin_locked(&ioc->pcie_device_lock);
list_for_each_entry(pcie_device, &ioc->pcie_device_list, list)
if (pcie_device->wwid == wwid)
goto found_device;
list_for_each_entry(pcie_device, &ioc->pcie_device_init_list, list)
if (pcie_device->wwid == wwid)
goto found_device;
return NULL;
found_device:
pcie_device_get(pcie_device);
return pcie_device;
}
/**
* mpt3sas_get_pdev_by_wwid - pcie device search
* @ioc: per adapter object
* @wwid: wwid
*
* Context: This function will acquire ioc->pcie_device_lock and will release
* before returning the pcie_device object.
*
* This searches for pcie_device based on wwid, then return pcie_device object.
*/
static struct _pcie_device *
mpt3sas_get_pdev_by_wwid(struct MPT3SAS_ADAPTER *ioc, u64 wwid)
{
struct _pcie_device *pcie_device;
unsigned long flags;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_wwid(ioc, wwid);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
return pcie_device;
}
static struct _pcie_device *
__mpt3sas_get_pdev_by_idchannel(struct MPT3SAS_ADAPTER *ioc, int id,
int channel)
{
struct _pcie_device *pcie_device;
assert_spin_locked(&ioc->pcie_device_lock);
list_for_each_entry(pcie_device, &ioc->pcie_device_list, list)
if (pcie_device->id == id && pcie_device->channel == channel)
goto found_device;
list_for_each_entry(pcie_device, &ioc->pcie_device_init_list, list)
if (pcie_device->id == id && pcie_device->channel == channel)
goto found_device;
return NULL;
found_device:
pcie_device_get(pcie_device);
return pcie_device;
}
static struct _pcie_device *
__mpt3sas_get_pdev_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _pcie_device *pcie_device;
assert_spin_locked(&ioc->pcie_device_lock);
list_for_each_entry(pcie_device, &ioc->pcie_device_list, list)
if (pcie_device->handle == handle)
goto found_device;
list_for_each_entry(pcie_device, &ioc->pcie_device_init_list, list)
if (pcie_device->handle == handle)
goto found_device;
return NULL;
found_device:
pcie_device_get(pcie_device);
return pcie_device;
}
/**
* mpt3sas_get_pdev_by_handle - pcie device search
* @ioc: per adapter object
* @handle: Firmware device handle
*
* Context: This function will acquire ioc->pcie_device_lock and will release
* before returning the pcie_device object.
*
* This searches for pcie_device based on handle, then return pcie_device
* object.
*/
struct _pcie_device *
mpt3sas_get_pdev_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _pcie_device *pcie_device;
unsigned long flags;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
return pcie_device;
}
/**
* _scsih_set_nvme_max_shutdown_latency - Update max_shutdown_latency.
* @ioc: per adapter object
* Context: This function will acquire ioc->pcie_device_lock
*
* Update ioc->max_shutdown_latency to that NVMe drives RTD3 Entry Latency
* which has reported maximum among all available NVMe drives.
* Minimum max_shutdown_latency will be six seconds.
*/
static void
_scsih_set_nvme_max_shutdown_latency(struct MPT3SAS_ADAPTER *ioc)
{
struct _pcie_device *pcie_device;
unsigned long flags;
u16 shutdown_latency = IO_UNIT_CONTROL_SHUTDOWN_TIMEOUT;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
list_for_each_entry(pcie_device, &ioc->pcie_device_list, list) {
if (pcie_device->shutdown_latency) {
if (shutdown_latency < pcie_device->shutdown_latency)
shutdown_latency =
pcie_device->shutdown_latency;
}
}
ioc->max_shutdown_latency = shutdown_latency;
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
}
/**
* _scsih_pcie_device_remove - remove pcie_device from list.
* @ioc: per adapter object
* @pcie_device: the pcie_device object
* Context: This function will acquire ioc->pcie_device_lock.
*
* If pcie_device is on the list, remove it and decrement its reference count.
*/
static void
_scsih_pcie_device_remove(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device)
{
unsigned long flags;
int was_on_pcie_device_list = 0;
u8 update_latency = 0;
if (!pcie_device)
return;
ioc_info(ioc, "removing handle(0x%04x), wwid(0x%016llx)\n",
pcie_device->handle, (u64)pcie_device->wwid);
if (pcie_device->enclosure_handle != 0)
ioc_info(ioc, "removing enclosure logical id(0x%016llx), slot(%d)\n",
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot);
if (pcie_device->connector_name[0] != '\0')
ioc_info(ioc, "removing enclosure level(0x%04x), connector name( %s)\n",
pcie_device->enclosure_level,
pcie_device->connector_name);
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
if (!list_empty(&pcie_device->list)) {
list_del_init(&pcie_device->list);
was_on_pcie_device_list = 1;
}
if (pcie_device->shutdown_latency == ioc->max_shutdown_latency)
update_latency = 1;
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
if (was_on_pcie_device_list) {
kfree(pcie_device->serial_number);
pcie_device_put(pcie_device);
}
/*
* This device's RTD3 Entry Latency matches IOC's
* max_shutdown_latency. Recalculate IOC's max_shutdown_latency
* from the available drives as current drive is getting removed.
*/
if (update_latency)
_scsih_set_nvme_max_shutdown_latency(ioc);
}
/**
* _scsih_pcie_device_remove_by_handle - removing pcie device object by handle
* @ioc: per adapter object
* @handle: device handle
*/
static void
_scsih_pcie_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _pcie_device *pcie_device;
unsigned long flags;
int was_on_pcie_device_list = 0;
u8 update_latency = 0;
if (ioc->shost_recovery)
return;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_handle(ioc, handle);
if (pcie_device) {
if (!list_empty(&pcie_device->list)) {
list_del_init(&pcie_device->list);
was_on_pcie_device_list = 1;
pcie_device_put(pcie_device);
}
if (pcie_device->shutdown_latency == ioc->max_shutdown_latency)
update_latency = 1;
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
if (was_on_pcie_device_list) {
_scsih_pcie_device_remove_from_sml(ioc, pcie_device);
pcie_device_put(pcie_device);
}
/*
* This device's RTD3 Entry Latency matches IOC's
* max_shutdown_latency. Recalculate IOC's max_shutdown_latency
* from the available drives as current drive is getting removed.
*/
if (update_latency)
_scsih_set_nvme_max_shutdown_latency(ioc);
}
/**
* _scsih_pcie_device_add - add pcie_device object
* @ioc: per adapter object
* @pcie_device: pcie_device object
*
* This is added to the pcie_device_list link list.
*/
static void
_scsih_pcie_device_add(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device)
{
unsigned long flags;
dewtprintk(ioc,
ioc_info(ioc, "%s: handle (0x%04x), wwid(0x%016llx)\n",
__func__,
pcie_device->handle, (u64)pcie_device->wwid));
if (pcie_device->enclosure_handle != 0)
dewtprintk(ioc,
ioc_info(ioc, "%s: enclosure logical id(0x%016llx), slot( %d)\n",
__func__,
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot));
if (pcie_device->connector_name[0] != '\0')
dewtprintk(ioc,
ioc_info(ioc, "%s: enclosure level(0x%04x), connector name( %s)\n",
__func__, pcie_device->enclosure_level,
pcie_device->connector_name));
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device_get(pcie_device);
list_add_tail(&pcie_device->list, &ioc->pcie_device_list);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
if (pcie_device->access_status ==
MPI26_PCIEDEV0_ASTATUS_DEVICE_BLOCKED) {
clear_bit(pcie_device->handle, ioc->pend_os_device_add);
return;
}
if (scsi_add_device(ioc->shost, PCIE_CHANNEL, pcie_device->id, 0)) {
_scsih_pcie_device_remove(ioc, pcie_device);
} else if (!pcie_device->starget) {
if (!ioc->is_driver_loading) {
/*TODO-- Need to find out whether this condition will occur or not*/
clear_bit(pcie_device->handle, ioc->pend_os_device_add);
}
} else
clear_bit(pcie_device->handle, ioc->pend_os_device_add);
}
/*
* _scsih_pcie_device_init_add - insert pcie_device to the init list.
* @ioc: per adapter object
* @pcie_device: the pcie_device object
* Context: This function will acquire ioc->pcie_device_lock.
*
* Adding new object at driver load time to the ioc->pcie_device_init_list.
*/
static void
_scsih_pcie_device_init_add(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device)
{
unsigned long flags;
dewtprintk(ioc,
ioc_info(ioc, "%s: handle (0x%04x), wwid(0x%016llx)\n",
__func__,
pcie_device->handle, (u64)pcie_device->wwid));
if (pcie_device->enclosure_handle != 0)
dewtprintk(ioc,
ioc_info(ioc, "%s: enclosure logical id(0x%016llx), slot( %d)\n",
__func__,
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot));
if (pcie_device->connector_name[0] != '\0')
dewtprintk(ioc,
ioc_info(ioc, "%s: enclosure level(0x%04x), connector name( %s)\n",
__func__, pcie_device->enclosure_level,
pcie_device->connector_name));
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device_get(pcie_device);
list_add_tail(&pcie_device->list, &ioc->pcie_device_init_list);
if (pcie_device->access_status !=
MPI26_PCIEDEV0_ASTATUS_DEVICE_BLOCKED)
_scsih_determine_boot_device(ioc, pcie_device, PCIE_CHANNEL);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
}
/**
* _scsih_raid_device_find_by_id - raid device search
* @ioc: per adapter object
* @id: sas device target id
* @channel: sas device channel
* Context: Calling function should acquire ioc->raid_device_lock
*
* This searches for raid_device based on target id, then return raid_device
* object.
*/
static struct _raid_device *
_scsih_raid_device_find_by_id(struct MPT3SAS_ADAPTER *ioc, int id, int channel)
{
struct _raid_device *raid_device, *r;
r = NULL;
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->id == id && raid_device->channel == channel) {
r = raid_device;
goto out;
}
}
out:
return r;
}
/**
* mpt3sas_raid_device_find_by_handle - raid device search
* @ioc: per adapter object
* @handle: sas device handle (assigned by firmware)
* Context: Calling function should acquire ioc->raid_device_lock
*
* This searches for raid_device based on handle, then return raid_device
* object.
*/
struct _raid_device *
mpt3sas_raid_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _raid_device *raid_device, *r;
r = NULL;
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->handle != handle)
continue;
r = raid_device;
goto out;
}
out:
return r;
}
/**
* _scsih_raid_device_find_by_wwid - raid device search
* @ioc: per adapter object
* @wwid: ?
* Context: Calling function should acquire ioc->raid_device_lock
*
* This searches for raid_device based on wwid, then return raid_device
* object.
*/
static struct _raid_device *
_scsih_raid_device_find_by_wwid(struct MPT3SAS_ADAPTER *ioc, u64 wwid)
{
struct _raid_device *raid_device, *r;
r = NULL;
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->wwid != wwid)
continue;
r = raid_device;
goto out;
}
out:
return r;
}
/**
* _scsih_raid_device_add - add raid_device object
* @ioc: per adapter object
* @raid_device: raid_device object
*
* This is added to the raid_device_list link list.
*/
static void
_scsih_raid_device_add(struct MPT3SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
unsigned long flags;
dewtprintk(ioc,
ioc_info(ioc, "%s: handle(0x%04x), wwid(0x%016llx)\n",
__func__,
raid_device->handle, (u64)raid_device->wwid));
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_add_tail(&raid_device->list, &ioc->raid_device_list);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* _scsih_raid_device_remove - delete raid_device object
* @ioc: per adapter object
* @raid_device: raid_device object
*
*/
static void
_scsih_raid_device_remove(struct MPT3SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
unsigned long flags;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_del(&raid_device->list);
kfree(raid_device);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* mpt3sas_scsih_expander_find_by_handle - expander device search
* @ioc: per adapter object
* @handle: expander handle (assigned by firmware)
* Context: Calling function should acquire ioc->sas_device_lock
*
* This searches for expander device based on handle, then returns the
* sas_node object.
*/
struct _sas_node *
mpt3sas_scsih_expander_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_node *sas_expander, *r;
r = NULL;
list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
if (sas_expander->handle != handle)
continue;
r = sas_expander;
goto out;
}
out:
return r;
}
/**
* mpt3sas_scsih_enclosure_find_by_handle - exclosure device search
* @ioc: per adapter object
* @handle: enclosure handle (assigned by firmware)
* Context: Calling function should acquire ioc->sas_device_lock
*
* This searches for enclosure device based on handle, then returns the
* enclosure object.
*/
static struct _enclosure_node *
mpt3sas_scsih_enclosure_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _enclosure_node *enclosure_dev, *r;
r = NULL;
list_for_each_entry(enclosure_dev, &ioc->enclosure_list, list) {
if (le16_to_cpu(enclosure_dev->pg0.EnclosureHandle) != handle)
continue;
r = enclosure_dev;
goto out;
}
out:
return r;
}
/**
* mpt3sas_scsih_expander_find_by_sas_address - expander device search
* @ioc: per adapter object
* @sas_address: sas address
* @port: hba port entry
* Context: Calling function should acquire ioc->sas_node_lock.
*
* This searches for expander device based on sas_address & port number,
* then returns the sas_node object.
*/
struct _sas_node *
mpt3sas_scsih_expander_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
u64 sas_address, struct hba_port *port)
{
struct _sas_node *sas_expander, *r = NULL;
if (!port)
return r;
list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
if (sas_expander->sas_address != sas_address)
continue;
if (sas_expander->port != port)
continue;
r = sas_expander;
goto out;
}
out:
return r;
}
/**
* _scsih_expander_node_add - insert expander device to the list.
* @ioc: per adapter object
* @sas_expander: the sas_device object
* Context: This function will acquire ioc->sas_node_lock.
*
* Adding new object to the ioc->sas_expander_list.
*/
static void
_scsih_expander_node_add(struct MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
unsigned long flags;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
}
/**
* _scsih_is_end_device - determines if device is an end device
* @device_info: bitfield providing information about the device.
* Context: none
*
* Return: 1 if end device.
*/
static int
_scsih_is_end_device(u32 device_info)
{
if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
(device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
(device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
return 1;
else
return 0;
}
/**
* _scsih_is_nvme_pciescsi_device - determines if
* device is an pcie nvme/scsi device
* @device_info: bitfield providing information about the device.
* Context: none
*
* Returns 1 if device is pcie device type nvme/scsi.
*/
static int
_scsih_is_nvme_pciescsi_device(u32 device_info)
{
if (((device_info & MPI26_PCIE_DEVINFO_MASK_DEVICE_TYPE)
== MPI26_PCIE_DEVINFO_NVME) ||
((device_info & MPI26_PCIE_DEVINFO_MASK_DEVICE_TYPE)
== MPI26_PCIE_DEVINFO_SCSI))
return 1;
else
return 0;
}
/**
* _scsih_scsi_lookup_find_by_target - search for matching channel:id
* @ioc: per adapter object
* @id: target id
* @channel: channel
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* This will search for a matching channel:id in the scsi_lookup array,
* returning 1 if found.
*/
static u8
_scsih_scsi_lookup_find_by_target(struct MPT3SAS_ADAPTER *ioc, int id,
int channel)
{
int smid;
struct scsi_cmnd *scmd;
for (smid = 1;
smid <= ioc->shost->can_queue; smid++) {
scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
if (!scmd)
continue;
if (scmd->device->id == id &&
scmd->device->channel == channel)
return 1;
}
return 0;
}
/**
* _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
* @ioc: per adapter object
* @id: target id
* @lun: lun number
* @channel: channel
* Context: This function will acquire ioc->scsi_lookup_lock.
*
* This will search for a matching channel:id:lun in the scsi_lookup array,
* returning 1 if found.
*/
static u8
_scsih_scsi_lookup_find_by_lun(struct MPT3SAS_ADAPTER *ioc, int id,
unsigned int lun, int channel)
{
int smid;
struct scsi_cmnd *scmd;
for (smid = 1; smid <= ioc->shost->can_queue; smid++) {
scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
if (!scmd)
continue;
if (scmd->device->id == id &&
scmd->device->channel == channel &&
scmd->device->lun == lun)
return 1;
}
return 0;
}
/**
* mpt3sas_scsih_scsi_lookup_get - returns scmd entry
* @ioc: per adapter object
* @smid: system request message index
*
* Return: the smid stored scmd pointer.
* Then will dereference the stored scmd pointer.
*/
struct scsi_cmnd *
mpt3sas_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc, u16 smid)
{
struct scsi_cmnd *scmd = NULL;
struct scsiio_tracker *st;
Mpi25SCSIIORequest_t *mpi_request;
u16 tag = smid - 1;
if (smid > 0 &&
smid <= ioc->scsiio_depth - INTERNAL_SCSIIO_CMDS_COUNT) {
u32 unique_tag =
ioc->io_queue_num[tag] << BLK_MQ_UNIQUE_TAG_BITS | tag;
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
/*
* If SCSI IO request is outstanding at driver level then
* DevHandle filed must be non-zero. If DevHandle is zero
* then it means that this smid is free at driver level,
* so return NULL.
*/
if (!mpi_request->DevHandle)
return scmd;
scmd = scsi_host_find_tag(ioc->shost, unique_tag);
if (scmd) {
st = scsi_cmd_priv(scmd);
if (st->cb_idx == 0xFF || st->smid == 0)
scmd = NULL;
}
}
return scmd;
}
/**
* scsih_change_queue_depth - setting device queue depth
* @sdev: scsi device struct
* @qdepth: requested queue depth
*
* Return: queue depth.
*/
static int
scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
{
struct Scsi_Host *shost = sdev->host;
int max_depth;
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
unsigned long flags;
max_depth = shost->can_queue;
/*
* limit max device queue for SATA to 32 if enable_sdev_max_qd
* is disabled.
*/
if (ioc->enable_sdev_max_qd || ioc->is_gen35_ioc)
goto not_sata;
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
goto not_sata;
sas_target_priv_data = sas_device_priv_data->sas_target;
if (!sas_target_priv_data)
goto not_sata;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
goto not_sata;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_from_target(ioc, sas_target_priv_data);
if (sas_device) {
if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
max_depth = MPT3SAS_SATA_QUEUE_DEPTH;
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
not_sata:
if (!sdev->tagged_supported)
max_depth = 1;
if (qdepth > max_depth)
qdepth = max_depth;
scsi_change_queue_depth(sdev, qdepth);
sdev_printk(KERN_INFO, sdev,
"qdepth(%d), tagged(%d), scsi_level(%d), cmd_que(%d)\n",
sdev->queue_depth, sdev->tagged_supported,
sdev->scsi_level, ((sdev->inquiry[7] & 2) >> 1));
return sdev->queue_depth;
}
/**
* mpt3sas_scsih_change_queue_depth - setting device queue depth
* @sdev: scsi device struct
* @qdepth: requested queue depth
*
* Returns nothing.
*/
void
mpt3sas_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
{
struct Scsi_Host *shost = sdev->host;
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
if (ioc->enable_sdev_max_qd)
qdepth = shost->can_queue;
scsih_change_queue_depth(sdev, qdepth);
}
/**
* scsih_target_alloc - target add routine
* @starget: scsi target struct
*
* Return: 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
static int
scsih_target_alloc(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
struct _pcie_device *pcie_device;
unsigned long flags;
struct sas_rphy *rphy;
sas_target_priv_data = kzalloc(sizeof(*sas_target_priv_data),
GFP_KERNEL);
if (!sas_target_priv_data)
return -ENOMEM;
starget->hostdata = sas_target_priv_data;
sas_target_priv_data->starget = starget;
sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
/* RAID volumes */
if (starget->channel == RAID_CHANNEL) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
starget->channel);
if (raid_device) {
sas_target_priv_data->handle = raid_device->handle;
sas_target_priv_data->sas_address = raid_device->wwid;
sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
if (ioc->is_warpdrive)
sas_target_priv_data->raid_device = raid_device;
raid_device->starget = starget;
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
return 0;
}
/* PCIe devices */
if (starget->channel == PCIE_CHANNEL) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_idchannel(ioc, starget->id,
starget->channel);
if (pcie_device) {
sas_target_priv_data->handle = pcie_device->handle;
sas_target_priv_data->sas_address = pcie_device->wwid;
sas_target_priv_data->port = NULL;
sas_target_priv_data->pcie_dev = pcie_device;
pcie_device->starget = starget;
pcie_device->id = starget->id;
pcie_device->channel = starget->channel;
sas_target_priv_data->flags |=
MPT_TARGET_FLAGS_PCIE_DEVICE;
if (pcie_device->fast_path)
sas_target_priv_data->flags |=
MPT_TARGET_FASTPATH_IO;
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
return 0;
}
/* sas/sata devices */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
rphy = dev_to_rphy(starget->dev.parent);
sas_device = __mpt3sas_get_sdev_by_rphy(ioc, rphy);
if (sas_device) {
sas_target_priv_data->handle = sas_device->handle;
sas_target_priv_data->sas_address = sas_device->sas_address;
sas_target_priv_data->port = sas_device->port;
sas_target_priv_data->sas_dev = sas_device;
sas_device->starget = starget;
sas_device->id = starget->id;
sas_device->channel = starget->channel;
if (test_bit(sas_device->handle, ioc->pd_handles))
sas_target_priv_data->flags |=
MPT_TARGET_FLAGS_RAID_COMPONENT;
if (sas_device->fast_path)
sas_target_priv_data->flags |=
MPT_TARGET_FASTPATH_IO;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return 0;
}
/**
* scsih_target_destroy - target destroy routine
* @starget: scsi target struct
*/
static void
scsih_target_destroy(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
struct _pcie_device *pcie_device;
unsigned long flags;
sas_target_priv_data = starget->hostdata;
if (!sas_target_priv_data)
return;
if (starget->channel == RAID_CHANNEL) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
starget->channel);
if (raid_device) {
raid_device->starget = NULL;
raid_device->sdev = NULL;
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
goto out;
}
if (starget->channel == PCIE_CHANNEL) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_from_target(ioc,
sas_target_priv_data);
if (pcie_device && (pcie_device->starget == starget) &&
(pcie_device->id == starget->id) &&
(pcie_device->channel == starget->channel))
pcie_device->starget = NULL;
if (pcie_device) {
/*
* Corresponding get() is in _scsih_target_alloc()
*/
sas_target_priv_data->pcie_dev = NULL;
pcie_device_put(pcie_device);
pcie_device_put(pcie_device);
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
goto out;
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_from_target(ioc, sas_target_priv_data);
if (sas_device && (sas_device->starget == starget) &&
(sas_device->id == starget->id) &&
(sas_device->channel == starget->channel))
sas_device->starget = NULL;
if (sas_device) {
/*
* Corresponding get() is in _scsih_target_alloc()
*/
sas_target_priv_data->sas_dev = NULL;
sas_device_put(sas_device);
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
out:
kfree(sas_target_priv_data);
starget->hostdata = NULL;
}
/**
* scsih_slave_alloc - device add routine
* @sdev: scsi device struct
*
* Return: 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
static int
scsih_slave_alloc(struct scsi_device *sdev)
{
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_target *starget;
struct _raid_device *raid_device;
struct _sas_device *sas_device;
struct _pcie_device *pcie_device;
unsigned long flags;
sas_device_priv_data = kzalloc(sizeof(*sas_device_priv_data),
GFP_KERNEL);
if (!sas_device_priv_data)
return -ENOMEM;
sas_device_priv_data->lun = sdev->lun;
sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
starget = scsi_target(sdev);
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->num_luns++;
sas_device_priv_data->sas_target = sas_target_priv_data;
sdev->hostdata = sas_device_priv_data;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
sdev->no_uld_attach = 1;
shost = dev_to_shost(&starget->dev);
ioc = shost_priv(shost);
if (starget->channel == RAID_CHANNEL) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc,
starget->id, starget->channel);
if (raid_device)
raid_device->sdev = sdev; /* raid is single lun */
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
if (starget->channel == PCIE_CHANNEL) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_wwid(ioc,
sas_target_priv_data->sas_address);
if (pcie_device && (pcie_device->starget == NULL)) {
sdev_printk(KERN_INFO, sdev,
"%s : pcie_device->starget set to starget @ %d\n",
__func__, __LINE__);
pcie_device->starget = starget;
}
if (pcie_device)
pcie_device_put(pcie_device);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
} else if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
sas_target_priv_data->sas_address,
sas_target_priv_data->port);
if (sas_device && (sas_device->starget == NULL)) {
sdev_printk(KERN_INFO, sdev,
"%s : sas_device->starget set to starget @ %d\n",
__func__, __LINE__);
sas_device->starget = starget;
}
if (sas_device)
sas_device_put(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
return 0;
}
/**
* scsih_slave_destroy - device destroy routine
* @sdev: scsi device struct
*/
static void
scsih_slave_destroy(struct scsi_device *sdev)
{
struct MPT3SAS_TARGET *sas_target_priv_data;
struct scsi_target *starget;
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
struct _sas_device *sas_device;
struct _pcie_device *pcie_device;
unsigned long flags;
if (!sdev->hostdata)
return;
starget = scsi_target(sdev);
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->num_luns--;
shost = dev_to_shost(&starget->dev);
ioc = shost_priv(shost);
if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_PCIE_DEVICE) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_from_target(ioc,
sas_target_priv_data);
if (pcie_device && !sas_target_priv_data->num_luns)
pcie_device->starget = NULL;
if (pcie_device)
pcie_device_put(pcie_device);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
} else if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_from_target(ioc,
sas_target_priv_data);
if (sas_device && !sas_target_priv_data->num_luns)
sas_device->starget = NULL;
if (sas_device)
sas_device_put(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
kfree(sdev->hostdata);
sdev->hostdata = NULL;
}
/**
* _scsih_display_sata_capabilities - sata capabilities
* @ioc: per adapter object
* @handle: device handle
* @sdev: scsi device struct
*/
static void
_scsih_display_sata_capabilities(struct MPT3SAS_ADAPTER *ioc,
u16 handle, struct scsi_device *sdev)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
u16 flags;
u32 device_info;
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
flags = le16_to_cpu(sas_device_pg0.Flags);
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
sdev_printk(KERN_INFO, sdev,
"atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
"sw_preserve(%s)\n",
(device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
"n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
(flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
}
/*
* raid transport support -
* Enabled for SLES11 and newer, in older kernels the driver will panic when
* unloading the driver followed by a load - I believe that the subroutine
* raid_class_release() is not cleaning up properly.
*/
/**
* scsih_is_raid - return boolean indicating device is raid volume
* @dev: the device struct object
*/
static int
scsih_is_raid(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
if (ioc->is_warpdrive)
return 0;
return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
}
static int
scsih_is_nvme(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
return (sdev->channel == PCIE_CHANNEL) ? 1 : 0;
}
/**
* scsih_get_resync - get raid volume resync percent complete
* @dev: the device struct object
*/
static void
scsih_get_resync(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
static struct _raid_device *raid_device;
unsigned long flags;
Mpi2RaidVolPage0_t vol_pg0;
Mpi2ConfigReply_t mpi_reply;
u32 volume_status_flags;
u8 percent_complete;
u16 handle;
percent_complete = 0;
handle = 0;
if (ioc->is_warpdrive)
goto out;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
sdev->channel);
if (raid_device) {
handle = raid_device->handle;
percent_complete = raid_device->percent_complete;
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (!handle)
goto out;
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
percent_complete = 0;
goto out;
}
volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
if (!(volume_status_flags &
MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS))
percent_complete = 0;
out:
switch (ioc->hba_mpi_version_belonged) {
case MPI2_VERSION:
raid_set_resync(mpt2sas_raid_template, dev, percent_complete);
break;
case MPI25_VERSION:
case MPI26_VERSION:
raid_set_resync(mpt3sas_raid_template, dev, percent_complete);
break;
}
}
/**
* scsih_get_state - get raid volume level
* @dev: the device struct object
*/
static void
scsih_get_state(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
static struct _raid_device *raid_device;
unsigned long flags;
Mpi2RaidVolPage0_t vol_pg0;
Mpi2ConfigReply_t mpi_reply;
u32 volstate;
enum raid_state state = RAID_STATE_UNKNOWN;
u16 handle = 0;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
sdev->channel);
if (raid_device)
handle = raid_device->handle;
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (!raid_device)
goto out;
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
state = RAID_STATE_RESYNCING;
goto out;
}
switch (vol_pg0.VolumeState) {
case MPI2_RAID_VOL_STATE_OPTIMAL:
case MPI2_RAID_VOL_STATE_ONLINE:
state = RAID_STATE_ACTIVE;
break;
case MPI2_RAID_VOL_STATE_DEGRADED:
state = RAID_STATE_DEGRADED;
break;
case MPI2_RAID_VOL_STATE_FAILED:
case MPI2_RAID_VOL_STATE_MISSING:
state = RAID_STATE_OFFLINE;
break;
}
out:
switch (ioc->hba_mpi_version_belonged) {
case MPI2_VERSION:
raid_set_state(mpt2sas_raid_template, dev, state);
break;
case MPI25_VERSION:
case MPI26_VERSION:
raid_set_state(mpt3sas_raid_template, dev, state);
break;
}
}
/**
* _scsih_set_level - set raid level
* @ioc: ?
* @sdev: scsi device struct
* @volume_type: volume type
*/
static void
_scsih_set_level(struct MPT3SAS_ADAPTER *ioc,
struct scsi_device *sdev, u8 volume_type)
{
enum raid_level level = RAID_LEVEL_UNKNOWN;
switch (volume_type) {
case MPI2_RAID_VOL_TYPE_RAID0:
level = RAID_LEVEL_0;
break;
case MPI2_RAID_VOL_TYPE_RAID10:
level = RAID_LEVEL_10;
break;
case MPI2_RAID_VOL_TYPE_RAID1E:
level = RAID_LEVEL_1E;
break;
case MPI2_RAID_VOL_TYPE_RAID1:
level = RAID_LEVEL_1;
break;
}
switch (ioc->hba_mpi_version_belonged) {
case MPI2_VERSION:
raid_set_level(mpt2sas_raid_template,
&sdev->sdev_gendev, level);
break;
case MPI25_VERSION:
case MPI26_VERSION:
raid_set_level(mpt3sas_raid_template,
&sdev->sdev_gendev, level);
break;
}
}
/**
* _scsih_get_volume_capabilities - volume capabilities
* @ioc: per adapter object
* @raid_device: the raid_device object
*
* Return: 0 for success, else 1
*/
static int
_scsih_get_volume_capabilities(struct MPT3SAS_ADAPTER *ioc,
struct _raid_device *raid_device)
{
Mpi2RaidVolPage0_t *vol_pg0;
Mpi2RaidPhysDiskPage0_t pd_pg0;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 sz;
u8 num_pds;
if ((mpt3sas_config_get_number_pds(ioc, raid_device->handle,
&num_pds)) || !num_pds) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
raid_device->num_pds = num_pds;
sz = struct_size(vol_pg0, PhysDisk, num_pds);
vol_pg0 = kzalloc(sz, GFP_KERNEL);
if (!vol_pg0) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
if ((mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
kfree(vol_pg0);
return 1;
}
raid_device->volume_type = vol_pg0->VolumeType;
/* figure out what the underlying devices are by
* obtaining the device_info bits for the 1st device
*/
if (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
&pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
vol_pg0->PhysDisk[0].PhysDiskNum))) {
if (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
le16_to_cpu(pd_pg0.DevHandle)))) {
raid_device->device_info =
le32_to_cpu(sas_device_pg0.DeviceInfo);
}
}
kfree(vol_pg0);
return 0;
}
/**
* _scsih_enable_tlr - setting TLR flags
* @ioc: per adapter object
* @sdev: scsi device struct
*
* Enabling Transaction Layer Retries for tape devices when
* vpd page 0x90 is present
*
*/
static void
_scsih_enable_tlr(struct MPT3SAS_ADAPTER *ioc, struct scsi_device *sdev)
{
/* only for TAPE */
if (sdev->type != TYPE_TAPE)
return;
if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
return;
sas_enable_tlr(sdev);
sdev_printk(KERN_INFO, sdev, "TLR %s\n",
sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
return;
}
/**
* scsih_device_configure - device configure routine.
* @sdev: scsi device struct
* @lim: queue limits
*
* Return: 0 if ok. Any other return is assumed to be an error and
* the device is ignored.
*/
static int
scsih_device_configure(struct scsi_device *sdev, struct queue_limits *lim)
{
struct Scsi_Host *shost = sdev->host;
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct _pcie_device *pcie_device;
struct _raid_device *raid_device;
unsigned long flags;
int qdepth;
u8 ssp_target = 0;
char *ds = "";
char *r_level = "";
u16 handle, volume_handle = 0;
u64 volume_wwid = 0;
qdepth = 1;
sas_device_priv_data = sdev->hostdata;
sas_device_priv_data->configured_lun = 1;
sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
sas_target_priv_data = sas_device_priv_data->sas_target;
handle = sas_target_priv_data->handle;
/* raid volume handling */
if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = mpt3sas_raid_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (!raid_device) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
if (_scsih_get_volume_capabilities(ioc, raid_device)) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
/*
* WARPDRIVE: Initialize the required data for Direct IO
*/
mpt3sas_init_warpdrive_properties(ioc, raid_device);
/* RAID Queue Depth Support
* IS volume = underlying qdepth of drive type, either
* MPT3SAS_SAS_QUEUE_DEPTH or MPT3SAS_SATA_QUEUE_DEPTH
* IM/IME/R10 = 128 (MPT3SAS_RAID_QUEUE_DEPTH)
*/
if (raid_device->device_info &
MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
qdepth = MPT3SAS_SAS_QUEUE_DEPTH;
ds = "SSP";
} else {
qdepth = MPT3SAS_SATA_QUEUE_DEPTH;
if (raid_device->device_info &
MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
ds = "SATA";
else
ds = "STP";
}
switch (raid_device->volume_type) {
case MPI2_RAID_VOL_TYPE_RAID0:
r_level = "RAID0";
break;
case MPI2_RAID_VOL_TYPE_RAID1E:
qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
if (ioc->manu_pg10.OEMIdentifier &&
(le32_to_cpu(ioc->manu_pg10.GenericFlags0) &
MFG10_GF0_R10_DISPLAY) &&
!(raid_device->num_pds % 2))
r_level = "RAID10";
else
r_level = "RAID1E";
break;
case MPI2_RAID_VOL_TYPE_RAID1:
qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
r_level = "RAID1";
break;
case MPI2_RAID_VOL_TYPE_RAID10:
qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
r_level = "RAID10";
break;
case MPI2_RAID_VOL_TYPE_UNKNOWN:
default:
qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
r_level = "RAIDX";
break;
}
if (!ioc->hide_ir_msg)
sdev_printk(KERN_INFO, sdev,
"%s: handle(0x%04x), wwid(0x%016llx),"
" pd_count(%d), type(%s)\n",
r_level, raid_device->handle,
(unsigned long long)raid_device->wwid,
raid_device->num_pds, ds);
if (shost->max_sectors > MPT3SAS_RAID_MAX_SECTORS) {
lim->max_hw_sectors = MPT3SAS_RAID_MAX_SECTORS;
sdev_printk(KERN_INFO, sdev,
"Set queue's max_sector to: %u\n",
MPT3SAS_RAID_MAX_SECTORS);
}
mpt3sas_scsih_change_queue_depth(sdev, qdepth);
/* raid transport support */
if (!ioc->is_warpdrive)
_scsih_set_level(ioc, sdev, raid_device->volume_type);
return 0;
}
/* non-raid handling */
if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
if (mpt3sas_config_get_volume_handle(ioc, handle,
&volume_handle)) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
if (volume_handle && mpt3sas_config_get_volume_wwid(ioc,
volume_handle, &volume_wwid)) {
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
}
/* PCIe handling */
if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_PCIE_DEVICE) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_wwid(ioc,
sas_device_priv_data->sas_target->sas_address);
if (!pcie_device) {
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
qdepth = ioc->max_nvme_qd;
ds = "NVMe";
sdev_printk(KERN_INFO, sdev,
"%s: handle(0x%04x), wwid(0x%016llx), port(%d)\n",
ds, handle, (unsigned long long)pcie_device->wwid,
pcie_device->port_num);
if (pcie_device->enclosure_handle != 0)
sdev_printk(KERN_INFO, sdev,
"%s: enclosure logical id(0x%016llx), slot(%d)\n",
ds,
(unsigned long long)pcie_device->enclosure_logical_id,
pcie_device->slot);
if (pcie_device->connector_name[0] != '\0')
sdev_printk(KERN_INFO, sdev,
"%s: enclosure level(0x%04x),"
"connector name( %s)\n", ds,
pcie_device->enclosure_level,
pcie_device->connector_name);
if (pcie_device->nvme_mdts)
lim->max_hw_sectors = pcie_device->nvme_mdts / 512;
pcie_device_put(pcie_device);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
mpt3sas_scsih_change_queue_depth(sdev, qdepth);
lim->virt_boundary_mask = ioc->page_size - 1;
return 0;
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
sas_device_priv_data->sas_target->sas_address,
sas_device_priv_data->sas_target->port);
if (!sas_device) {
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
dfailprintk(ioc,
ioc_warn(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__));
return 1;
}
sas_device->volume_handle = volume_handle;
sas_device->volume_wwid = volume_wwid;
if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
qdepth = (sas_device->port_type > 1) ?
ioc->max_wideport_qd : ioc->max_narrowport_qd;
ssp_target = 1;
if (sas_device->device_info &
MPI2_SAS_DEVICE_INFO_SEP) {
sdev_printk(KERN_WARNING, sdev,
"set ignore_delay_remove for handle(0x%04x)\n",
sas_device_priv_data->sas_target->handle);
sas_device_priv_data->ignore_delay_remove = 1;
ds = "SES";
} else
ds = "SSP";
} else {
qdepth = ioc->max_sata_qd;
if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET)
ds = "STP";
else if (sas_device->device_info &
MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
ds = "SATA";
}
sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), " \
"sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
ds, handle, (unsigned long long)sas_device->sas_address,
sas_device->phy, (unsigned long long)sas_device->device_name);
_scsih_display_enclosure_chassis_info(NULL, sas_device, sdev, NULL);
sas_device_put(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!ssp_target)
_scsih_display_sata_capabilities(ioc, handle, sdev);
mpt3sas_scsih_change_queue_depth(sdev, qdepth);
if (ssp_target) {
sas_read_port_mode_page(sdev);
_scsih_enable_tlr(ioc, sdev);
}
return 0;
}
/**
* scsih_bios_param - fetch head, sector, cylinder info for a disk
* @sdev: scsi device struct
* @bdev: pointer to block device context
* @capacity: device size (in 512 byte sectors)
* @params: three element array to place output:
* params[0] number of heads (max 255)
* params[1] number of sectors (max 63)
* params[2] number of cylinders
*/
static int
scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
sector_t capacity, int params[])
{
int heads;
int sectors;
sector_t cylinders;
ulong dummy;
heads = 64;
sectors = 32;
dummy = heads * sectors;
cylinders = capacity;
sector_div(cylinders, dummy);
/*
* Handle extended translation size for logical drives
* > 1Gb
*/
if ((ulong)capacity >= 0x200000) {
heads = 255;
sectors = 63;
dummy = heads * sectors;
cylinders = capacity;
sector_div(cylinders, dummy);
}
/* return result */
params[0] = heads;
params[1] = sectors;
params[2] = cylinders;
return 0;
}
/**
* _scsih_response_code - translation of device response code
* @ioc: per adapter object
* @response_code: response code returned by the device
*/
static void
_scsih_response_code(struct MPT3SAS_ADAPTER *ioc, u8 response_code)
{
char *desc;
switch (response_code) {
case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
desc = "task management request completed";
break;
case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
desc = "invalid frame";
break;
case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
desc = "task management request not supported";
break;
case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
desc = "task management request failed";
break;
case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
desc = "task management request succeeded";
break;
case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
desc = "invalid lun";
break;
case 0xA:
desc = "overlapped tag attempted";
break;
case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
desc = "task queued, however not sent to target";
break;
default:
desc = "unknown";
break;
}
ioc_warn(ioc, "response_code(0x%01x): %s\n", response_code, desc);
}
/**
* _scsih_tm_done - tm completion routine
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: none.
*
* The callback handler when using scsih_issue_tm.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_tm_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
{
MPI2DefaultReply_t *mpi_reply;
if (ioc->tm_cmds.status == MPT3_CMD_NOT_USED)
return 1;
if (ioc->tm_cmds.smid != smid)
return 1;
ioc->tm_cmds.status |= MPT3_CMD_COMPLETE;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (mpi_reply) {
memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
ioc->tm_cmds.status |= MPT3_CMD_REPLY_VALID;
}
ioc->tm_cmds.status &= ~MPT3_CMD_PENDING;
complete(&ioc->tm_cmds.done);
return 1;
}
/**
* mpt3sas_scsih_set_tm_flag - set per target tm_busy
* @ioc: per adapter object
* @handle: device handle
*
* During taskmangement request, we need to freeze the device queue.
*/
void
mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
u8 skip = 0;
shost_for_each_device(sdev, ioc->shost) {
if (skip)
continue;
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->sas_target->handle == handle) {
sas_device_priv_data->sas_target->tm_busy = 1;
skip = 1;
ioc->ignore_loginfos = 1;
}
}
}
/**
* mpt3sas_scsih_clear_tm_flag - clear per target tm_busy
* @ioc: per adapter object
* @handle: device handle
*
* During taskmangement request, we need to freeze the device queue.
*/
void
mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
u8 skip = 0;
shost_for_each_device(sdev, ioc->shost) {
if (skip)
continue;
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->sas_target->handle == handle) {
sas_device_priv_data->sas_target->tm_busy = 0;
skip = 1;
ioc->ignore_loginfos = 0;
}
}
}
/**
* scsih_tm_cmd_map_status - map the target reset & LUN reset TM status
* @ioc: per adapter object
* @channel: the channel assigned by the OS
* @id: the id assigned by the OS
* @lun: lun number
* @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
* @smid_task: smid assigned to the task
*
* Look whether TM has aborted the timed out SCSI command, if
* TM has aborted the IO then return SUCCESS else return FAILED.
*/
static int
scsih_tm_cmd_map_status(struct MPT3SAS_ADAPTER *ioc, uint channel,
uint id, uint lun, u8 type, u16 smid_task)
{
if (smid_task <= ioc->shost->can_queue) {
switch (type) {
case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
if (!(_scsih_scsi_lookup_find_by_target(ioc,
id, channel)))
return SUCCESS;
break;
case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
if (!(_scsih_scsi_lookup_find_by_lun(ioc, id,
lun, channel)))
return SUCCESS;
break;
default:
return SUCCESS;
}
} else if (smid_task == ioc->scsih_cmds.smid) {
if ((ioc->scsih_cmds.status & MPT3_CMD_COMPLETE) ||
(ioc->scsih_cmds.status & MPT3_CMD_NOT_USED))
return SUCCESS;
} else if (smid_task == ioc->ctl_cmds.smid) {
if ((ioc->ctl_cmds.status & MPT3_CMD_COMPLETE) ||
(ioc->ctl_cmds.status & MPT3_CMD_NOT_USED))
return SUCCESS;
}
return FAILED;
}
/**
* scsih_tm_post_processing - post processing of target & LUN reset
* @ioc: per adapter object
* @handle: device handle
* @channel: the channel assigned by the OS
* @id: the id assigned by the OS
* @lun: lun number
* @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
* @smid_task: smid assigned to the task
*
* Post processing of target & LUN reset. Due to interrupt latency
* issue it possible that interrupt for aborted IO might not be
* received yet. So before returning failure status, poll the
* reply descriptor pools for the reply of timed out SCSI command.
* Return FAILED status if reply for timed out is not received
* otherwise return SUCCESS.
*/
static int
scsih_tm_post_processing(struct MPT3SAS_ADAPTER *ioc, u16 handle,
uint channel, uint id, uint lun, u8 type, u16 smid_task)
{
int rc;
rc = scsih_tm_cmd_map_status(ioc, channel, id, lun, type, smid_task);
if (rc == SUCCESS)
return rc;
ioc_info(ioc,
"Poll ReplyDescriptor queues for completion of"
" smid(%d), task_type(0x%02x), handle(0x%04x)\n",
smid_task, type, handle);
/*
* Due to interrupt latency issues, driver may receive interrupt for
* TM first and then for aborted SCSI IO command. So, poll all the
* ReplyDescriptor pools before returning the FAILED status to SML.
*/
mpt3sas_base_mask_interrupts(ioc);
mpt3sas_base_sync_reply_irqs(ioc, 1);
mpt3sas_base_unmask_interrupts(ioc);
return scsih_tm_cmd_map_status(ioc, channel, id, lun, type, smid_task);
}
/**
* mpt3sas_scsih_issue_tm - main routine for sending tm requests
* @ioc: per adapter struct
* @handle: device handle
* @channel: the channel assigned by the OS
* @id: the id assigned by the OS
* @lun: lun number
* @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
* @smid_task: smid assigned to the task
* @msix_task: MSIX table index supplied by the OS
* @timeout: timeout in seconds
* @tr_method: Target Reset Method
* Context: user
*
* A generic API for sending task management requests to firmware.
*
* The callback index is set inside `ioc->tm_cb_idx`.
* The caller is responsible to check for outstanding commands.
*
* Return: SUCCESS or FAILED.
*/
int
mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
uint id, u64 lun, u8 type, u16 smid_task, u16 msix_task,
u8 timeout, u8 tr_method)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
Mpi2SCSITaskManagementReply_t *mpi_reply;
Mpi25SCSIIORequest_t *request;
u16 smid = 0;
u32 ioc_state;
int rc;
u8 issue_reset = 0;
lockdep_assert_held(&ioc->tm_cmds.mutex);
if (ioc->tm_cmds.status != MPT3_CMD_NOT_USED) {
ioc_info(ioc, "%s: tm_cmd busy!!!\n", __func__);
return FAILED;
}
if (ioc->shost_recovery || ioc->remove_host ||
ioc->pci_error_recovery) {
ioc_info(ioc, "%s: host reset in progress!\n", __func__);
return FAILED;
}
ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
if (ioc_state & MPI2_DOORBELL_USED) {
dhsprintk(ioc, ioc_info(ioc, "unexpected doorbell active!\n"));
rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
return (!rc) ? SUCCESS : FAILED;
}
if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
mpt3sas_print_fault_code(ioc, ioc_state &
MPI2_DOORBELL_DATA_MASK);
rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
return (!rc) ? SUCCESS : FAILED;
} else if ((ioc_state & MPI2_IOC_STATE_MASK) ==
MPI2_IOC_STATE_COREDUMP) {
mpt3sas_print_coredump_info(ioc, ioc_state &
MPI2_DOORBELL_DATA_MASK);
rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
return (!rc) ? SUCCESS : FAILED;
}
smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
if (!smid) {
ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
return FAILED;
}
dtmprintk(ioc,
ioc_info(ioc, "sending tm: handle(0x%04x), task_type(0x%02x), smid(%d), timeout(%d), tr_method(0x%x)\n",
handle, type, smid_task, timeout, tr_method));
ioc->tm_cmds.status = MPT3_CMD_PENDING;
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
ioc->tm_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_t));
mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->TaskType = type;
if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
type == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
mpi_request->MsgFlags = tr_method;
mpi_request->TaskMID = cpu_to_le16(smid_task);
int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
mpt3sas_scsih_set_tm_flag(ioc, handle);
init_completion(&ioc->tm_cmds.done);
ioc->put_smid_hi_priority(ioc, smid, msix_task);
wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) {
mpt3sas_check_cmd_timeout(ioc,
ioc->tm_cmds.status, mpi_request,
sizeof(Mpi2SCSITaskManagementRequest_t)/4, issue_reset);
if (issue_reset) {
rc = mpt3sas_base_hard_reset_handler(ioc,
FORCE_BIG_HAMMER);
rc = (!rc) ? SUCCESS : FAILED;
goto out;
}
}
/* sync IRQs in case those were busy during flush. */
mpt3sas_base_sync_reply_irqs(ioc, 0);
if (ioc->tm_cmds.status & MPT3_CMD_REPLY_VALID) {
mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
mpi_reply = ioc->tm_cmds.reply;
dtmprintk(ioc,
ioc_info(ioc, "complete tm: ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo),
le32_to_cpu(mpi_reply->TerminationCount)));
if (ioc->logging_level & MPT_DEBUG_TM) {
_scsih_response_code(ioc, mpi_reply->ResponseCode);
if (mpi_reply->IOCStatus)
_debug_dump_mf(mpi_request,
sizeof(Mpi2SCSITaskManagementRequest_t)/4);
}
}
switch (type) {
case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
rc = SUCCESS;
/*
* If DevHandle filed in smid_task's entry of request pool
* doesn't match with device handle on which this task abort
* TM is received then it means that TM has successfully
* aborted the timed out command. Since smid_task's entry in
* request pool will be memset to zero once the timed out
* command is returned to the SML. If the command is not
* aborted then smid_task’s entry won’t be cleared and it
* will have same DevHandle value on which this task abort TM
* is received and driver will return the TM status as FAILED.
*/
request = mpt3sas_base_get_msg_frame(ioc, smid_task);
if (le16_to_cpu(request->DevHandle) != handle)
break;
ioc_info(ioc, "Task abort tm failed: handle(0x%04x),"
"timeout(%d) tr_method(0x%x) smid(%d) msix_index(%d)\n",
handle, timeout, tr_method, smid_task, msix_task);
rc = FAILED;
break;
case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
rc = scsih_tm_post_processing(ioc, handle, channel, id, lun,
type, smid_task);
break;
case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
rc = SUCCESS;
break;
default:
rc = FAILED;
break;
}
out:
mpt3sas_scsih_clear_tm_flag(ioc, handle);
ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
return rc;
}
int mpt3sas_scsih_issue_locked_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
uint channel, uint id, u64 lun, u8 type, u16 smid_task,
u16 msix_task, u8 timeout, u8 tr_method)
{
int ret;
mutex_lock(&ioc->tm_cmds.mutex);
ret = mpt3sas_scsih_issue_tm(ioc, handle, channel, id, lun, type,
smid_task, msix_task, timeout, tr_method);
mutex_unlock(&ioc->tm_cmds.mutex);
return ret;
}
/**
* _scsih_tm_display_info - displays info about the device
* @ioc: per adapter struct
* @scmd: pointer to scsi command object
*
* Called by task management callback handlers.
*/
static void
_scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
{
struct scsi_target *starget = scmd->device->sdev_target;
struct MPT3SAS_TARGET *priv_target = starget->hostdata;
struct _sas_device *sas_device = NULL;
struct _pcie_device *pcie_device = NULL;
unsigned long flags;
char *device_str = NULL;
if (!priv_target)
return;
if (ioc->hide_ir_msg)
device_str = "WarpDrive";
else
device_str = "volume";
scsi_print_command(scmd);
if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
starget_printk(KERN_INFO, starget,
"%s handle(0x%04x), %s wwid(0x%016llx)\n",
device_str, priv_target->handle,
device_str, (unsigned long long)priv_target->sas_address);
} else if (priv_target->flags & MPT_TARGET_FLAGS_PCIE_DEVICE) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_from_target(ioc, priv_target);
if (pcie_device) {
starget_printk(KERN_INFO, starget,
"handle(0x%04x), wwid(0x%016llx), port(%d)\n",
pcie_device->handle,
(unsigned long long)pcie_device->wwid,
pcie_device->port_num);
if (pcie_device->enclosure_handle != 0)
starget_printk(KERN_INFO, starget,
"enclosure logical id(0x%016llx), slot(%d)\n",
(unsigned long long)
pcie_device->enclosure_logical_id,
pcie_device->slot);
if (pcie_device->connector_name[0] != '\0')
starget_printk(KERN_INFO, starget,
"enclosure level(0x%04x), connector name( %s)\n",
pcie_device->enclosure_level,
pcie_device->connector_name);
pcie_device_put(pcie_device);
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
} else {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_from_target(ioc, priv_target);
if (sas_device) {
if (priv_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
starget_printk(KERN_INFO, starget,
"volume handle(0x%04x), "
"volume wwid(0x%016llx)\n",
sas_device->volume_handle,
(unsigned long long)sas_device->volume_wwid);
}
starget_printk(KERN_INFO, starget,
"handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
sas_device->handle,
(unsigned long long)sas_device->sas_address,
sas_device->phy);
_scsih_display_enclosure_chassis_info(NULL, sas_device,
NULL, starget);
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
}
/**
* scsih_abort - eh threads main abort routine
* @scmd: pointer to scsi command object
*
* Return: SUCCESS if command aborted else FAILED
*/
static int
scsih_abort(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsiio_tracker *st = scsi_cmd_priv(scmd);
u16 handle;
int r;
u8 timeout = 30;
struct _pcie_device *pcie_device = NULL;
sdev_printk(KERN_INFO, scmd->device, "attempting task abort!"
"scmd(0x%p), outstanding for %u ms & timeout %u ms\n",
scmd, jiffies_to_msecs(jiffies - scmd->jiffies_at_alloc),
(scsi_cmd_to_rq(scmd)->timeout / HZ) * 1000);
_scsih_tm_display_info(ioc, scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
ioc->remove_host) {
sdev_printk(KERN_INFO, scmd->device,
"device been deleted! scmd(0x%p)\n", scmd);
scmd->result = DID_NO_CONNECT << 16;
scsi_done(scmd);
r = SUCCESS;
goto out;
}
/* check for completed command */
if (st == NULL || st->cb_idx == 0xFF) {
sdev_printk(KERN_INFO, scmd->device, "No reference found at "
"driver, assuming scmd(0x%p) might have completed\n", scmd);
scmd->result = DID_RESET << 16;
r = SUCCESS;
goto out;
}
/* for hidden raid components and volumes this is not supported */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT ||
sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
scmd->result = DID_RESET << 16;
r = FAILED;
goto out;
}
mpt3sas_halt_firmware(ioc);
handle = sas_device_priv_data->sas_target->handle;
pcie_device = mpt3sas_get_pdev_by_handle(ioc, handle);
if (pcie_device && (!ioc->tm_custom_handling) &&
(!(mpt3sas_scsih_is_pcie_scsi_device(pcie_device->device_info))))
timeout = ioc->nvme_abort_timeout;
r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel,
scmd->device->id, scmd->device->lun,
MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
st->smid, st->msix_io, timeout, 0);
/* Command must be cleared after abort */
if (r == SUCCESS && st->cb_idx != 0xFF)
r = FAILED;
out:
sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(0x%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
if (pcie_device)
pcie_device_put(pcie_device);
return r;
}
/**
* scsih_dev_reset - eh threads main device reset routine
* @scmd: pointer to scsi command object
*
* Return: SUCCESS if command aborted else FAILED
*/
static int
scsih_dev_reset(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct _sas_device *sas_device = NULL;
struct _pcie_device *pcie_device = NULL;
u16 handle;
u8 tr_method = 0;
u8 tr_timeout = 30;
int r;
struct scsi_target *starget = scmd->device->sdev_target;
struct MPT3SAS_TARGET *target_priv_data = starget->hostdata;
sdev_printk(KERN_INFO, scmd->device,
"attempting device reset! scmd(0x%p)\n", scmd);
_scsih_tm_display_info(ioc, scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
ioc->remove_host) {
sdev_printk(KERN_INFO, scmd->device,
"device been deleted! scmd(0x%p)\n", scmd);
scmd->result = DID_NO_CONNECT << 16;
scsi_done(scmd);
r = SUCCESS;
goto out;
}
/* for hidden raid components obtain the volume_handle */
handle = 0;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
sas_device = mpt3sas_get_sdev_from_target(ioc,
target_priv_data);
if (sas_device)
handle = sas_device->volume_handle;
} else
handle = sas_device_priv_data->sas_target->handle;
if (!handle) {
scmd->result = DID_RESET << 16;
r = FAILED;
goto out;
}
pcie_device = mpt3sas_get_pdev_by_handle(ioc, handle);
if (pcie_device && (!ioc->tm_custom_handling) &&
(!(mpt3sas_scsih_is_pcie_scsi_device(pcie_device->device_info)))) {
tr_timeout = pcie_device->reset_timeout;
tr_method = MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE;
} else
tr_method = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel,
scmd->device->id, scmd->device->lun,
MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 0,
tr_timeout, tr_method);
/* Check for busy commands after reset */
if (r == SUCCESS && scsi_device_busy(scmd->device))
r = FAILED;
out:
sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(0x%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
if (sas_device)
sas_device_put(sas_device);
if (pcie_device)
pcie_device_put(pcie_device);
return r;
}
/**
* scsih_target_reset - eh threads main target reset routine
* @scmd: pointer to scsi command object
*
* Return: SUCCESS if command aborted else FAILED
*/
static int
scsih_target_reset(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct _sas_device *sas_device = NULL;
struct _pcie_device *pcie_device = NULL;
u16 handle;
u8 tr_method = 0;
u8 tr_timeout = 30;
int r;
struct scsi_target *starget = scmd->device->sdev_target;
struct MPT3SAS_TARGET *target_priv_data = starget->hostdata;
starget_printk(KERN_INFO, starget,
"attempting target reset! scmd(0x%p)\n", scmd);
_scsih_tm_display_info(ioc, scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
ioc->remove_host) {
starget_printk(KERN_INFO, starget,
"target been deleted! scmd(0x%p)\n", scmd);
scmd->result = DID_NO_CONNECT << 16;
scsi_done(scmd);
r = SUCCESS;
goto out;
}
/* for hidden raid components obtain the volume_handle */
handle = 0;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT) {
sas_device = mpt3sas_get_sdev_from_target(ioc,
target_priv_data);
if (sas_device)
handle = sas_device->volume_handle;
} else
handle = sas_device_priv_data->sas_target->handle;
if (!handle) {
scmd->result = DID_RESET << 16;
r = FAILED;
goto out;
}
pcie_device = mpt3sas_get_pdev_by_handle(ioc, handle);
if (pcie_device && (!ioc->tm_custom_handling) &&
(!(mpt3sas_scsih_is_pcie_scsi_device(pcie_device->device_info)))) {
tr_timeout = pcie_device->reset_timeout;
tr_method = MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE;
} else
tr_method = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel,
scmd->device->id, 0,
MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 0,
tr_timeout, tr_method);
/* Check for busy commands after reset */
if (r == SUCCESS && atomic_read(&starget->target_busy))
r = FAILED;
out:
starget_printk(KERN_INFO, starget, "target reset: %s scmd(0x%p)\n",
((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
if (sas_device)
sas_device_put(sas_device);
if (pcie_device)
pcie_device_put(pcie_device);
return r;
}
/**
* scsih_host_reset - eh threads main host reset routine
* @scmd: pointer to scsi command object
*
* Return: SUCCESS if command aborted else FAILED
*/
static int
scsih_host_reset(struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
int r, retval;
ioc_info(ioc, "attempting host reset! scmd(0x%p)\n", scmd);
scsi_print_command(scmd);
if (ioc->is_driver_loading || ioc->remove_host) {
ioc_info(ioc, "Blocking the host reset\n");
r = FAILED;
goto out;
}
retval = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
r = (retval < 0) ? FAILED : SUCCESS;
out:
ioc_info(ioc, "host reset: %s scmd(0x%p)\n",
r == SUCCESS ? "SUCCESS" : "FAILED", scmd);
return r;
}
/**
* _scsih_fw_event_add - insert and queue up fw_event
* @ioc: per adapter object
* @fw_event: object describing the event
* Context: This function will acquire ioc->fw_event_lock.
*
* This adds the firmware event object into link list, then queues it up to
* be processed from user context.
*/
static void
_scsih_fw_event_add(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
{
unsigned long flags;
if (ioc->firmware_event_thread == NULL)
return;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
fw_event_work_get(fw_event);
INIT_LIST_HEAD(&fw_event->list);
list_add_tail(&fw_event->list, &ioc->fw_event_list);
INIT_WORK(&fw_event->work, _firmware_event_work);
fw_event_work_get(fw_event);
queue_work(ioc->firmware_event_thread, &fw_event->work);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_fw_event_del_from_list - delete fw_event from the list
* @ioc: per adapter object
* @fw_event: object describing the event
* Context: This function will acquire ioc->fw_event_lock.
*
* If the fw_event is on the fw_event_list, remove it and do a put.
*/
static void
_scsih_fw_event_del_from_list(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work
*fw_event)
{
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
if (!list_empty(&fw_event->list)) {
list_del_init(&fw_event->list);
fw_event_work_put(fw_event);
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* mpt3sas_send_trigger_data_event - send event for processing trigger data
* @ioc: per adapter object
* @event_data: trigger event data
*/
void
mpt3sas_send_trigger_data_event(struct MPT3SAS_ADAPTER *ioc,
struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
{
struct fw_event_work *fw_event;
u16 sz;
if (ioc->is_driver_loading)
return;
sz = sizeof(*event_data);
fw_event = alloc_fw_event_work(sz);
if (!fw_event)
return;
fw_event->event = MPT3SAS_PROCESS_TRIGGER_DIAG;
fw_event->ioc = ioc;
memcpy(fw_event->event_data, event_data, sizeof(*event_data));
_scsih_fw_event_add(ioc, fw_event);
fw_event_work_put(fw_event);
}
/**
* _scsih_error_recovery_delete_devices - remove devices not responding
* @ioc: per adapter object
*/
static void
_scsih_error_recovery_delete_devices(struct MPT3SAS_ADAPTER *ioc)
{
struct fw_event_work *fw_event;
fw_event = alloc_fw_event_work(0);
if (!fw_event)
return;
fw_event->event = MPT3SAS_REMOVE_UNRESPONDING_DEVICES;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
fw_event_work_put(fw_event);
}
/**
* mpt3sas_port_enable_complete - port enable completed (fake event)
* @ioc: per adapter object
*/
void
mpt3sas_port_enable_complete(struct MPT3SAS_ADAPTER *ioc)
{
struct fw_event_work *fw_event;
fw_event = alloc_fw_event_work(0);
if (!fw_event)
return;
fw_event->event = MPT3SAS_PORT_ENABLE_COMPLETE;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
fw_event_work_put(fw_event);
}
static struct fw_event_work *dequeue_next_fw_event(struct MPT3SAS_ADAPTER *ioc)
{
unsigned long flags;
struct fw_event_work *fw_event = NULL;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
if (!list_empty(&ioc->fw_event_list)) {
fw_event = list_first_entry(&ioc->fw_event_list,
struct fw_event_work, list);
list_del_init(&fw_event->list);
fw_event_work_put(fw_event);
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
return fw_event;
}
/**
* _scsih_fw_event_cleanup_queue - cleanup event queue
* @ioc: per adapter object
*
* Walk the firmware event queue, either killing timers, or waiting
* for outstanding events to complete
*
* Context: task, can sleep
*/
static void
_scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc)
{
struct fw_event_work *fw_event;
if ((list_empty(&ioc->fw_event_list) && !ioc->current_event) ||
!ioc->firmware_event_thread)
return;
/*
* Set current running event as ignore, so that
* current running event will exit quickly.
* As diag reset has occurred it is of no use
* to process remaining stale event data entries.
*/
if (ioc->shost_recovery && ioc->current_event)
ioc->current_event->ignore = 1;
ioc->fw_events_cleanup = 1;
while ((fw_event = dequeue_next_fw_event(ioc)) ||
(fw_event = ioc->current_event)) {
/*
* Don't call cancel_work_sync() for current_event
* other than MPT3SAS_REMOVE_UNRESPONDING_DEVICES;
* otherwise we may observe deadlock if current
* hard reset issued as part of processing the current_event.
*
* Orginal logic of cleaning the current_event is added
* for handling the back to back host reset issued by the user.
* i.e. during back to back host reset, driver use to process
* the two instances of MPT3SAS_REMOVE_UNRESPONDING_DEVICES
* event back to back and this made the drives to unregister
* the devices from SML.
*/
if (fw_event == ioc->current_event &&
ioc->current_event->event !=
MPT3SAS_REMOVE_UNRESPONDING_DEVICES) {
ioc->current_event = NULL;
continue;
}
/*
* Driver has to clear ioc->start_scan flag when
* it is cleaning up MPT3SAS_PORT_ENABLE_COMPLETE,
* otherwise scsi_scan_host() API waits for the
* 5 minute timer to expire. If we exit from
* scsi_scan_host() early then we can issue the
* new port enable request as part of current diag reset.
*/
if (fw_event->event == MPT3SAS_PORT_ENABLE_COMPLETE) {
ioc->port_enable_cmds.status |= MPT3_CMD_RESET;
ioc->start_scan = 0;
}
/*
* Wait on the fw_event to complete. If this returns 1, then
* the event was never executed, and we need a put for the
* reference the work had on the fw_event.
*
* If it did execute, we wait for it to finish, and the put will
* happen from _firmware_event_work()
*/
if (cancel_work_sync(&fw_event->work))
fw_event_work_put(fw_event);
}
ioc->fw_events_cleanup = 0;
}
/**
* _scsih_internal_device_block - block the sdev device
* @sdev: per device object
* @sas_device_priv_data : per device driver private data
*
* make sure device is blocked without error, if not
* print an error
*/
static void
_scsih_internal_device_block(struct scsi_device *sdev,
struct MPT3SAS_DEVICE *sas_device_priv_data)
{
int r = 0;
sdev_printk(KERN_INFO, sdev, "device_block, handle(0x%04x)\n",
sas_device_priv_data->sas_target->handle);
sas_device_priv_data->block = 1;
r = scsi_internal_device_block_nowait(sdev);
if (r == -EINVAL)
sdev_printk(KERN_WARNING, sdev,
"device_block failed with return(%d) for handle(0x%04x)\n",
r, sas_device_priv_data->sas_target->handle);
}
/**
* _scsih_internal_device_unblock - unblock the sdev device
* @sdev: per device object
* @sas_device_priv_data : per device driver private data
* make sure device is unblocked without error, if not retry
* by blocking and then unblocking
*/
static void
_scsih_internal_device_unblock(struct scsi_device *sdev,
struct MPT3SAS_DEVICE *sas_device_priv_data)
{
int r = 0;
sdev_printk(KERN_WARNING, sdev, "device_unblock and setting to running, "
"handle(0x%04x)\n", sas_device_priv_data->sas_target->handle);
sas_device_priv_data->block = 0;
r = scsi_internal_device_unblock_nowait(sdev, SDEV_RUNNING);
if (r == -EINVAL) {
/* The device has been set to SDEV_RUNNING by SD layer during
* device addition but the request queue is still stopped by
* our earlier block call. We need to perform a block again
* to get the device to SDEV_BLOCK and then to SDEV_RUNNING */
sdev_printk(KERN_WARNING, sdev,
"device_unblock failed with return(%d) for handle(0x%04x) "
"performing a block followed by an unblock\n",
r, sas_device_priv_data->sas_target->handle);
sas_device_priv_data->block = 1;
r = scsi_internal_device_block_nowait(sdev);
if (r)
sdev_printk(KERN_WARNING, sdev, "retried device_block "
"failed with return(%d) for handle(0x%04x)\n",
r, sas_device_priv_data->sas_target->handle);
sas_device_priv_data->block = 0;
r = scsi_internal_device_unblock_nowait(sdev, SDEV_RUNNING);
if (r)
sdev_printk(KERN_WARNING, sdev, "retried device_unblock"
" failed with return(%d) for handle(0x%04x)\n",
r, sas_device_priv_data->sas_target->handle);
}
}
/**
* _scsih_ublock_io_all_device - unblock every device
* @ioc: per adapter object
*
* change the device state from block to running
*/
static void
_scsih_ublock_io_all_device(struct MPT3SAS_ADAPTER *ioc)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (!sas_device_priv_data->block)
continue;
dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
"device_running, handle(0x%04x)\n",
sas_device_priv_data->sas_target->handle));
_scsih_internal_device_unblock(sdev, sas_device_priv_data);
}
}
/**
* _scsih_ublock_io_device - prepare device to be deleted
* @ioc: per adapter object
* @sas_address: sas address
* @port: hba port entry
*
* unblock then put device in offline state
*/
static void
_scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc,
u64 sas_address, struct hba_port *port)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
continue;
if (sas_device_priv_data->sas_target->sas_address
!= sas_address)
continue;
if (sas_device_priv_data->sas_target->port != port)
continue;
if (sas_device_priv_data->block)
_scsih_internal_device_unblock(sdev,
sas_device_priv_data);
}
}
/**
* _scsih_block_io_all_device - set the device state to SDEV_BLOCK
* @ioc: per adapter object
*
* During device pull we need to appropriately set the sdev state.
*/
static void
_scsih_block_io_all_device(struct MPT3SAS_ADAPTER *ioc)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->block)
continue;
if (sas_device_priv_data->ignore_delay_remove) {
sdev_printk(KERN_INFO, sdev,
"%s skip device_block for SES handle(0x%04x)\n",
__func__, sas_device_priv_data->sas_target->handle);
continue;
}
_scsih_internal_device_block(sdev, sas_device_priv_data);
}
}
/**
* _scsih_block_io_device - set the device state to SDEV_BLOCK
* @ioc: per adapter object
* @handle: device handle
*
* During device pull we need to appropriately set the sdev state.
*/
static void
_scsih_block_io_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
struct _sas_device *sas_device;
sas_device = mpt3sas_get_sdev_by_handle(ioc, handle);
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data)
continue;
if (sas_device_priv_data->sas_target->handle != handle)
continue;
if (sas_device_priv_data->block)
continue;
if (sas_device && sas_device->pend_sas_rphy_add)
continue;
if (sas_device_priv_data->ignore_delay_remove) {
sdev_printk(KERN_INFO, sdev,
"%s skip device_block for SES handle(0x%04x)\n",
__func__, sas_device_priv_data->sas_target->handle);
continue;
}
_scsih_internal_device_block(sdev, sas_device_priv_data);
}
if (sas_device)
sas_device_put(sas_device);
}
/**
* _scsih_block_io_to_children_attached_to_ex
* @ioc: per adapter object
* @sas_expander: the sas_device object
*
* This routine set sdev state to SDEV_BLOCK for all devices
* attached to this expander. This function called when expander is
* pulled.
*/
static void
_scsih_block_io_to_children_attached_to_ex(struct MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
struct _sas_port *mpt3sas_port;
struct _sas_device *sas_device;
struct _sas_node *expander_sibling;
unsigned long flags;
if (!sas_expander)
return;
list_for_each_entry(mpt3sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt3sas_port->remote_identify.device_type ==
SAS_END_DEVICE) {
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
mpt3sas_port->remote_identify.sas_address,
mpt3sas_port->hba_port);
if (sas_device) {
set_bit(sas_device->handle,
ioc->blocking_handles);
sas_device_put(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
}
list_for_each_entry(mpt3sas_port,
&sas_expander->sas_port_list, port_list) {
if (mpt3sas_port->remote_identify.device_type ==
SAS_EDGE_EXPANDER_DEVICE ||
mpt3sas_port->remote_identify.device_type ==
SAS_FANOUT_EXPANDER_DEVICE) {
expander_sibling =
mpt3sas_scsih_expander_find_by_sas_address(
ioc, mpt3sas_port->remote_identify.sas_address,
mpt3sas_port->hba_port);
_scsih_block_io_to_children_attached_to_ex(ioc,
expander_sibling);
}
}
}
/**
* _scsih_block_io_to_children_attached_directly
* @ioc: per adapter object
* @event_data: topology change event data
*
* This routine set sdev state to SDEV_BLOCK for all devices
* direct attached during device pull.
*/
static void
_scsih_block_io_to_children_attached_directly(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
for (i = 0; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
_scsih_block_io_device(ioc, handle);
}
}
/**
* _scsih_block_io_to_pcie_children_attached_directly
* @ioc: per adapter object
* @event_data: topology change event data
*
* This routine set sdev state to SDEV_BLOCK for all devices
* direct attached during device pull/reconnect.
*/
static void
_scsih_block_io_to_pcie_children_attached_directly(struct MPT3SAS_ADAPTER *ioc,
Mpi26EventDataPCIeTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
for (i = 0; i < event_data->NumEntries; i++) {
handle =
le16_to_cpu(event_data->PortEntry[i].AttachedDevHandle);
if (!handle)
continue;
reason_code = event_data->PortEntry[i].PortStatus;
if (reason_code ==
MPI26_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING)
_scsih_block_io_device(ioc, handle);
}
}
/**
* _scsih_tm_tr_send - send task management request
* @ioc: per adapter object
* @handle: device handle
* Context: interrupt time.
*
* This code is to initiate the device removal handshake protocol
* with controller firmware. This function will issue target reset
* using high priority request queue. It will send a sas iounit
* control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
*
* This is designed to send muliple task management request at the same
* time to the fifo. If the fifo is full, we will append the request,
* and process it in a future completion.
*/
static void
_scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
u16 smid;
struct _sas_device *sas_device = NULL;
struct _pcie_device *pcie_device = NULL;
struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
u64 sas_address = 0;
unsigned long flags;
struct _tr_list *delayed_tr;
u32 ioc_state;
u8 tr_method = 0;
struct hba_port *port = NULL;
if (ioc->pci_error_recovery) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host in pci error recovery: handle(0x%04x)\n",
__func__, handle));
return;
}
ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host is not operational: handle(0x%04x)\n",
__func__, handle));
return;
}
/* if PD, then return */
if (test_bit(handle, ioc->pd_handles))
return;
clear_bit(handle, ioc->pend_os_device_add);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device && sas_device->starget &&
sas_device->starget->hostdata) {
sas_target_priv_data = sas_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
sas_address = sas_device->sas_address;
port = sas_device->port;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device) {
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_handle(ioc, handle);
if (pcie_device && pcie_device->starget &&
pcie_device->starget->hostdata) {
sas_target_priv_data = pcie_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
sas_address = pcie_device->wwid;
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
if (pcie_device && (!ioc->tm_custom_handling) &&
(!(mpt3sas_scsih_is_pcie_scsi_device(
pcie_device->device_info))))
tr_method =
MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE;
else
tr_method = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
}
if (sas_target_priv_data) {
dewtprintk(ioc,
ioc_info(ioc, "setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n",
handle, (u64)sas_address));
if (sas_device) {
if (sas_device->enclosure_handle != 0)
dewtprintk(ioc,
ioc_info(ioc, "setting delete flag:enclosure logical id(0x%016llx), slot(%d)\n",
(u64)sas_device->enclosure_logical_id,
sas_device->slot));
if (sas_device->connector_name[0] != '\0')
dewtprintk(ioc,
ioc_info(ioc, "setting delete flag: enclosure level(0x%04x), connector name( %s)\n",
sas_device->enclosure_level,
sas_device->connector_name));
} else if (pcie_device) {
if (pcie_device->enclosure_handle != 0)
dewtprintk(ioc,
ioc_info(ioc, "setting delete flag: logical id(0x%016llx), slot(%d)\n",
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot));
if (pcie_device->connector_name[0] != '\0')
dewtprintk(ioc,
ioc_info(ioc, "setting delete flag:, enclosure level(0x%04x), connector name( %s)\n",
pcie_device->enclosure_level,
pcie_device->connector_name));
}
_scsih_ublock_io_device(ioc, sas_address, port);
sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
}
smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
if (!smid) {
delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
if (!delayed_tr)
goto out;
INIT_LIST_HEAD(&delayed_tr->list);
delayed_tr->handle = handle;
list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
dewtprintk(ioc,
ioc_info(ioc, "DELAYED:tr:handle(0x%04x), (open)\n",
handle));
goto out;
}
dewtprintk(ioc,
ioc_info(ioc, "tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
handle, smid, ioc->tm_tr_cb_idx));
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
mpi_request->MsgFlags = tr_method;
set_bit(handle, ioc->device_remove_in_progress);
ioc->put_smid_hi_priority(ioc, smid, 0);
mpt3sas_trigger_master(ioc, MASTER_TRIGGER_DEVICE_REMOVAL);
out:
if (sas_device)
sas_device_put(sas_device);
if (pcie_device)
pcie_device_put(pcie_device);
}
/**
* _scsih_tm_tr_complete -
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt time.
*
* This is the target reset completion routine.
* This code is part of the code to initiate the device removal
* handshake protocol with controller firmware.
* It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_tm_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
u32 reply)
{
u16 handle;
Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
Mpi2SCSITaskManagementReply_t *mpi_reply =
mpt3sas_base_get_reply_virt_addr(ioc, reply);
Mpi2SasIoUnitControlRequest_t *mpi_request;
u16 smid_sas_ctrl;
u32 ioc_state;
struct _sc_list *delayed_sc;
if (ioc->pci_error_recovery) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host in pci error recovery\n",
__func__));
return 1;
}
ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host is not operational\n",
__func__));
return 1;
}
if (unlikely(!mpi_reply)) {
ioc_err(ioc, "mpi_reply not valid at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 1;
}
mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
handle = le16_to_cpu(mpi_request_tm->DevHandle);
if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
dewtprintk(ioc,
ioc_err(ioc, "spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
handle,
le16_to_cpu(mpi_reply->DevHandle), smid));
return 0;
}
mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
dewtprintk(ioc,
ioc_info(ioc, "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), loginfo(0x%08x), completed(%d)\n",
handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo),
le32_to_cpu(mpi_reply->TerminationCount)));
smid_sas_ctrl = mpt3sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
if (!smid_sas_ctrl) {
delayed_sc = kzalloc(sizeof(*delayed_sc), GFP_ATOMIC);
if (!delayed_sc)
return _scsih_check_for_pending_tm(ioc, smid);
INIT_LIST_HEAD(&delayed_sc->list);
delayed_sc->handle = le16_to_cpu(mpi_request_tm->DevHandle);
list_add_tail(&delayed_sc->list, &ioc->delayed_sc_list);
dewtprintk(ioc,
ioc_info(ioc, "DELAYED:sc:handle(0x%04x), (open)\n",
handle));
return _scsih_check_for_pending_tm(ioc, smid);
}
dewtprintk(ioc,
ioc_info(ioc, "sc_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
handle, smid_sas_ctrl, ioc->tm_sas_control_cb_idx));
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid_sas_ctrl);
memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
mpi_request->DevHandle = mpi_request_tm->DevHandle;
ioc->put_smid_default(ioc, smid_sas_ctrl);
return _scsih_check_for_pending_tm(ioc, smid);
}
/** _scsih_allow_scmd_to_device - check whether scmd needs to
* issue to IOC or not.
* @ioc: per adapter object
* @scmd: pointer to scsi command object
*
* Returns true if scmd can be issued to IOC otherwise returns false.
*/
inline bool _scsih_allow_scmd_to_device(struct MPT3SAS_ADAPTER *ioc,
struct scsi_cmnd *scmd)
{
if (ioc->pci_error_recovery)
return false;
if (ioc->hba_mpi_version_belonged == MPI2_VERSION) {
if (ioc->remove_host)
return false;
return true;
}
if (ioc->remove_host) {
switch (scmd->cmnd[0]) {
case SYNCHRONIZE_CACHE:
case START_STOP:
return true;
default:
return false;
}
}
return true;
}
/**
* _scsih_sas_control_complete - completion routine
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt time.
*
* This is the sas iounit control completion routine.
* This code is part of the code to initiate the device removal
* handshake protocol with controller firmware.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_sas_control_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
u8 msix_index, u32 reply)
{
Mpi2SasIoUnitControlReply_t *mpi_reply =
mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (likely(mpi_reply)) {
dewtprintk(ioc,
ioc_info(ioc, "sc_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
le16_to_cpu(mpi_reply->DevHandle), smid,
le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo)));
if (le16_to_cpu(mpi_reply->IOCStatus) ==
MPI2_IOCSTATUS_SUCCESS) {
clear_bit(le16_to_cpu(mpi_reply->DevHandle),
ioc->device_remove_in_progress);
}
} else {
ioc_err(ioc, "mpi_reply not valid at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
}
return mpt3sas_check_for_pending_internal_cmds(ioc, smid);
}
/**
* _scsih_tm_tr_volume_send - send target reset request for volumes
* @ioc: per adapter object
* @handle: device handle
* Context: interrupt time.
*
* This is designed to send muliple task management request at the same
* time to the fifo. If the fifo is full, we will append the request,
* and process it in a future completion.
*/
static void
_scsih_tm_tr_volume_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
u16 smid;
struct _tr_list *delayed_tr;
if (ioc->pci_error_recovery) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host reset in progress!\n",
__func__));
return;
}
smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
if (!smid) {
delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
if (!delayed_tr)
return;
INIT_LIST_HEAD(&delayed_tr->list);
delayed_tr->handle = handle;
list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
dewtprintk(ioc,
ioc_info(ioc, "DELAYED:tr:handle(0x%04x), (open)\n",
handle));
return;
}
dewtprintk(ioc,
ioc_info(ioc, "tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
handle, smid, ioc->tm_tr_volume_cb_idx));
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
ioc->put_smid_hi_priority(ioc, smid, 0);
}
/**
* _scsih_tm_volume_tr_complete - target reset completion
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt time.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_tm_volume_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
u8 msix_index, u32 reply)
{
u16 handle;
Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
Mpi2SCSITaskManagementReply_t *mpi_reply =
mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (ioc->shost_recovery || ioc->pci_error_recovery) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host reset in progress!\n",
__func__));
return 1;
}
if (unlikely(!mpi_reply)) {
ioc_err(ioc, "mpi_reply not valid at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 1;
}
mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
handle = le16_to_cpu(mpi_request_tm->DevHandle);
if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
dewtprintk(ioc,
ioc_err(ioc, "spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
handle, le16_to_cpu(mpi_reply->DevHandle),
smid));
return 0;
}
dewtprintk(ioc,
ioc_info(ioc, "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), loginfo(0x%08x), completed(%d)\n",
handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo),
le32_to_cpu(mpi_reply->TerminationCount)));
return _scsih_check_for_pending_tm(ioc, smid);
}
/**
* _scsih_issue_delayed_event_ack - issue delayed Event ACK messages
* @ioc: per adapter object
* @smid: system request message index
* @event: Event ID
* @event_context: used to track events uniquely
*
* Context - processed in interrupt context.
*/
static void
_scsih_issue_delayed_event_ack(struct MPT3SAS_ADAPTER *ioc, u16 smid, U16 event,
U32 event_context)
{
Mpi2EventAckRequest_t *ack_request;
int i = smid - ioc->internal_smid;
unsigned long flags;
/* Without releasing the smid just update the
* call back index and reuse the same smid for
* processing this delayed request
*/
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
ioc->internal_lookup[i].cb_idx = ioc->base_cb_idx;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
dewtprintk(ioc,
ioc_info(ioc, "EVENT ACK: event(0x%04x), smid(%d), cb(%d)\n",
le16_to_cpu(event), smid, ioc->base_cb_idx));
ack_request = mpt3sas_base_get_msg_frame(ioc, smid);
memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t));
ack_request->Function = MPI2_FUNCTION_EVENT_ACK;
ack_request->Event = event;
ack_request->EventContext = event_context;
ack_request->VF_ID = 0; /* TODO */
ack_request->VP_ID = 0;
ioc->put_smid_default(ioc, smid);
}
/**
* _scsih_issue_delayed_sas_io_unit_ctrl - issue delayed
* sas_io_unit_ctrl messages
* @ioc: per adapter object
* @smid: system request message index
* @handle: device handle
*
* Context - processed in interrupt context.
*/
static void
_scsih_issue_delayed_sas_io_unit_ctrl(struct MPT3SAS_ADAPTER *ioc,
u16 smid, u16 handle)
{
Mpi2SasIoUnitControlRequest_t *mpi_request;
u32 ioc_state;
int i = smid - ioc->internal_smid;
unsigned long flags;
if (ioc->remove_host) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host has been removed\n",
__func__));
return;
} else if (ioc->pci_error_recovery) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host in pci error recovery\n",
__func__));
return;
}
ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
dewtprintk(ioc,
ioc_info(ioc, "%s: host is not operational\n",
__func__));
return;
}
/* Without releasing the smid just update the
* call back index and reuse the same smid for
* processing this delayed request
*/
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
ioc->internal_lookup[i].cb_idx = ioc->tm_sas_control_cb_idx;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
dewtprintk(ioc,
ioc_info(ioc, "sc_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
handle, smid, ioc->tm_sas_control_cb_idx));
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
mpi_request->DevHandle = cpu_to_le16(handle);
ioc->put_smid_default(ioc, smid);
}
/**
* mpt3sas_check_for_pending_internal_cmds - check for pending internal messages
* @ioc: per adapter object
* @smid: system request message index
*
* Context: Executed in interrupt context
*
* This will check delayed internal messages list, and process the
* next request.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
u8
mpt3sas_check_for_pending_internal_cmds(struct MPT3SAS_ADAPTER *ioc, u16 smid)
{
struct _sc_list *delayed_sc;
struct _event_ack_list *delayed_event_ack;
if (!list_empty(&ioc->delayed_event_ack_list)) {
delayed_event_ack = list_entry(ioc->delayed_event_ack_list.next,
struct _event_ack_list, list);
_scsih_issue_delayed_event_ack(ioc, smid,
delayed_event_ack->Event, delayed_event_ack->EventContext);
list_del(&delayed_event_ack->list);
kfree(delayed_event_ack);
return 0;
}
if (!list_empty(&ioc->delayed_sc_list)) {
delayed_sc = list_entry(ioc->delayed_sc_list.next,
struct _sc_list, list);
_scsih_issue_delayed_sas_io_unit_ctrl(ioc, smid,
delayed_sc->handle);
list_del(&delayed_sc->list);
kfree(delayed_sc);
return 0;
}
return 1;
}
/**
* _scsih_check_for_pending_tm - check for pending task management
* @ioc: per adapter object
* @smid: system request message index
*
* This will check delayed target reset list, and feed the
* next reqeust.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid)
{
struct _tr_list *delayed_tr;
if (!list_empty(&ioc->delayed_tr_volume_list)) {
delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
struct _tr_list, list);
mpt3sas_base_free_smid(ioc, smid);
_scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
list_del(&delayed_tr->list);
kfree(delayed_tr);
return 0;
}
if (!list_empty(&ioc->delayed_tr_list)) {
delayed_tr = list_entry(ioc->delayed_tr_list.next,
struct _tr_list, list);
mpt3sas_base_free_smid(ioc, smid);
_scsih_tm_tr_send(ioc, delayed_tr->handle);
list_del(&delayed_tr->list);
kfree(delayed_tr);
return 0;
}
return 1;
}
/**
* _scsih_check_topo_delete_events - sanity check on topo events
* @ioc: per adapter object
* @event_data: the event data payload
*
* This routine added to better handle cable breaker.
*
* This handles the case where driver receives multiple expander
* add and delete events in a single shot. When there is a delete event
* the routine will void any pending add events waiting in the event queue.
*/
static void
_scsih_check_topo_delete_events(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
struct fw_event_work *fw_event;
Mpi2EventDataSasTopologyChangeList_t *local_event_data;
u16 expander_handle;
struct _sas_node *sas_expander;
unsigned long flags;
int i, reason_code;
u16 handle;
for (i = 0 ; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
_scsih_tm_tr_send(ioc, handle);
}
expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
if (expander_handle < ioc->sas_hba.num_phys) {
_scsih_block_io_to_children_attached_directly(ioc, event_data);
return;
}
if (event_data->ExpStatus ==
MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING) {
/* put expander attached devices into blocking state */
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
expander_handle);
_scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
do {
handle = find_first_bit(ioc->blocking_handles,
ioc->facts.MaxDevHandle);
if (handle < ioc->facts.MaxDevHandle)
_scsih_block_io_device(ioc, handle);
} while (test_and_clear_bit(handle, ioc->blocking_handles));
} else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
_scsih_block_io_to_children_attached_directly(ioc, event_data);
if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
return;
/* mark ignore flag for pending events */
spin_lock_irqsave(&ioc->fw_event_lock, flags);
list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
fw_event->ignore)
continue;
local_event_data = (Mpi2EventDataSasTopologyChangeList_t *)
fw_event->event_data;
if (local_event_data->ExpStatus ==
MPI2_EVENT_SAS_TOPO_ES_ADDED ||
local_event_data->ExpStatus ==
MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
expander_handle) {
dewtprintk(ioc,
ioc_info(ioc, "setting ignoring flag\n"));
fw_event->ignore = 1;
}
}
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_check_pcie_topo_remove_events - sanity check on topo
* events
* @ioc: per adapter object
* @event_data: the event data payload
*
* This handles the case where driver receives multiple switch
* or device add and delete events in a single shot. When there
* is a delete event the routine will void any pending add
* events waiting in the event queue.
*/
static void
_scsih_check_pcie_topo_remove_events(struct MPT3SAS_ADAPTER *ioc,
Mpi26EventDataPCIeTopologyChangeList_t *event_data)
{
struct fw_event_work *fw_event;
Mpi26EventDataPCIeTopologyChangeList_t *local_event_data;
unsigned long flags;
int i, reason_code;
u16 handle, switch_handle;
for (i = 0; i < event_data->NumEntries; i++) {
handle =
le16_to_cpu(event_data->PortEntry[i].AttachedDevHandle);
if (!handle)
continue;
reason_code = event_data->PortEntry[i].PortStatus;
if (reason_code == MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING)
_scsih_tm_tr_send(ioc, handle);
}
switch_handle = le16_to_cpu(event_data->SwitchDevHandle);
if (!switch_handle) {
_scsih_block_io_to_pcie_children_attached_directly(
ioc, event_data);
return;
}
/* TODO We are not supporting cascaded PCIe Switch removal yet*/
if ((event_data->SwitchStatus
== MPI26_EVENT_PCIE_TOPO_SS_DELAY_NOT_RESPONDING) ||
(event_data->SwitchStatus ==
MPI26_EVENT_PCIE_TOPO_SS_RESPONDING))
_scsih_block_io_to_pcie_children_attached_directly(
ioc, event_data);
if (event_data->SwitchStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
return;
/* mark ignore flag for pending events */
spin_lock_irqsave(&ioc->fw_event_lock, flags);
list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
if (fw_event->event != MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
fw_event->ignore)
continue;
local_event_data =
(Mpi26EventDataPCIeTopologyChangeList_t *)
fw_event->event_data;
if (local_event_data->SwitchStatus ==
MPI2_EVENT_SAS_TOPO_ES_ADDED ||
local_event_data->SwitchStatus ==
MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
if (le16_to_cpu(local_event_data->SwitchDevHandle) ==
switch_handle) {
dewtprintk(ioc,
ioc_info(ioc, "setting ignoring flag for switch event\n"));
fw_event->ignore = 1;
}
}
}
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
/**
* _scsih_set_volume_delete_flag - setting volume delete flag
* @ioc: per adapter object
* @handle: device handle
*
* This returns nothing.
*/
static void
_scsih_set_volume_delete_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _raid_device *raid_device;
struct MPT3SAS_TARGET *sas_target_priv_data;
unsigned long flags;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = mpt3sas_raid_device_find_by_handle(ioc, handle);
if (raid_device && raid_device->starget &&
raid_device->starget->hostdata) {
sas_target_priv_data =
raid_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
dewtprintk(ioc,
ioc_info(ioc, "setting delete flag: handle(0x%04x), wwid(0x%016llx)\n",
handle, (u64)raid_device->wwid));
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* _scsih_set_volume_handle_for_tr - set handle for target reset to volume
* @handle: input handle
* @a: handle for volume a
* @b: handle for volume b
*
* IR firmware only supports two raid volumes. The purpose of this
* routine is to set the volume handle in either a or b. When the given
* input handle is non-zero, or when a and b have not been set before.
*/
static void
_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
{
if (!handle || handle == *a || handle == *b)
return;
if (!*a)
*a = handle;
else if (!*b)
*b = handle;
}
/**
* _scsih_check_ir_config_unhide_events - check for UNHIDE events
* @ioc: per adapter object
* @event_data: the event data payload
* Context: interrupt time.
*
* This routine will send target reset to volume, followed by target
* resets to the PDs. This is called when a PD has been removed, or
* volume has been deleted or removed. When the target reset is sent
* to volume, the PD target resets need to be queued to start upon
* completion of the volume target reset.
*/
static void
_scsih_check_ir_config_unhide_events(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataIrConfigChangeList_t *event_data)
{
Mpi2EventIrConfigElement_t *element;
int i;
u16 handle, volume_handle, a, b;
struct _tr_list *delayed_tr;
a = 0;
b = 0;
if (ioc->is_warpdrive)
return;
/* Volume Resets for Deleted or Removed */
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
for (i = 0; i < event_data->NumElements; i++, element++) {
if (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
continue;
if (element->ReasonCode ==
MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
element->ReasonCode ==
MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
volume_handle = le16_to_cpu(element->VolDevHandle);
_scsih_set_volume_delete_flag(ioc, volume_handle);
_scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
}
}
/* Volume Resets for UNHIDE events */
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
for (i = 0; i < event_data->NumElements; i++, element++) {
if (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
continue;
if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
volume_handle = le16_to_cpu(element->VolDevHandle);
_scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
}
}
if (a)
_scsih_tm_tr_volume_send(ioc, a);
if (b)
_scsih_tm_tr_volume_send(ioc, b);
/* PD target resets */
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
for (i = 0; i < event_data->NumElements; i++, element++) {
if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
continue;
handle = le16_to_cpu(element->PhysDiskDevHandle);
volume_handle = le16_to_cpu(element->VolDevHandle);
clear_bit(handle, ioc->pd_handles);
if (!volume_handle)
_scsih_tm_tr_send(ioc, handle);
else if (volume_handle == a || volume_handle == b) {
delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
BUG_ON(!delayed_tr);
INIT_LIST_HEAD(&delayed_tr->list);
delayed_tr->handle = handle;
list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
dewtprintk(ioc,
ioc_info(ioc, "DELAYED:tr:handle(0x%04x), (open)\n",
handle));
} else
_scsih_tm_tr_send(ioc, handle);
}
}
/**
* _scsih_check_volume_delete_events - set delete flag for volumes
* @ioc: per adapter object
* @event_data: the event data payload
* Context: interrupt time.
*
* This will handle the case when the cable connected to entire volume is
* pulled. We will take care of setting the deleted flag so normal IO will
* not be sent.
*/
static void
_scsih_check_volume_delete_events(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataIrVolume_t *event_data)
{
u32 state;
if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
return;
state = le32_to_cpu(event_data->NewValue);
if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
MPI2_RAID_VOL_STATE_FAILED)
_scsih_set_volume_delete_flag(ioc,
le16_to_cpu(event_data->VolDevHandle));
}
/**
* _scsih_temp_threshold_events - display temperature threshold exceeded events
* @ioc: per adapter object
* @event_data: the temp threshold event data
* Context: interrupt time.
*/
static void
_scsih_temp_threshold_events(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataTemperature_t *event_data)
{
u32 doorbell;
if (ioc->temp_sensors_count >= event_data->SensorNum) {
ioc_err(ioc, "Temperature Threshold flags %s%s%s%s exceeded for Sensor: %d !!!\n",
le16_to_cpu(event_data->Status) & 0x1 ? "0 " : " ",
le16_to_cpu(event_data->Status) & 0x2 ? "1 " : " ",
le16_to_cpu(event_data->Status) & 0x4 ? "2 " : " ",
le16_to_cpu(event_data->Status) & 0x8 ? "3 " : " ",
event_data->SensorNum);
ioc_err(ioc, "Current Temp In Celsius: %d\n",
event_data->CurrentTemperature);
if (ioc->hba_mpi_version_belonged != MPI2_VERSION) {
doorbell = mpt3sas_base_get_iocstate(ioc, 0);
if ((doorbell & MPI2_IOC_STATE_MASK) ==
MPI2_IOC_STATE_FAULT) {
mpt3sas_print_fault_code(ioc,
doorbell & MPI2_DOORBELL_DATA_MASK);
} else if ((doorbell & MPI2_IOC_STATE_MASK) ==
MPI2_IOC_STATE_COREDUMP) {
mpt3sas_print_coredump_info(ioc,
doorbell & MPI2_DOORBELL_DATA_MASK);
}
}
}
}
static int _scsih_set_satl_pending(struct scsi_cmnd *scmd, bool pending)
{
struct MPT3SAS_DEVICE *priv = scmd->device->hostdata;
if (scmd->cmnd[0] != ATA_12 && scmd->cmnd[0] != ATA_16)
return 0;
if (pending)
return test_and_set_bit(0, &priv->ata_command_pending);
clear_bit(0, &priv->ata_command_pending);
return 0;
}
/**
* _scsih_flush_running_cmds - completing outstanding commands.
* @ioc: per adapter object
*
* The flushing out of all pending scmd commands following host reset,
* where all IO is dropped to the floor.
*/
static void
_scsih_flush_running_cmds(struct MPT3SAS_ADAPTER *ioc)
{
struct scsi_cmnd *scmd;
struct scsiio_tracker *st;
u16 smid;
int count = 0;
for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
if (!scmd)
continue;
count++;
_scsih_set_satl_pending(scmd, false);
st = scsi_cmd_priv(scmd);
mpt3sas_base_clear_st(ioc, st);
scsi_dma_unmap(scmd);
if (ioc->pci_error_recovery || ioc->remove_host)
scmd->result = DID_NO_CONNECT << 16;
else
scmd->result = DID_RESET << 16;
scsi_done(scmd);
}
dtmprintk(ioc, ioc_info(ioc, "completing %d cmds\n", count));
}
/**
* _scsih_setup_eedp - setup MPI request for EEDP transfer
* @ioc: per adapter object
* @scmd: pointer to scsi command object
* @mpi_request: pointer to the SCSI_IO request message frame
*
* Supporting protection 1 and 3.
*/
static void
_scsih_setup_eedp(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
Mpi25SCSIIORequest_t *mpi_request)
{
u16 eedp_flags;
Mpi25SCSIIORequest_t *mpi_request_3v =
(Mpi25SCSIIORequest_t *)mpi_request;
switch (scsi_get_prot_op(scmd)) {
case SCSI_PROT_READ_STRIP:
eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
break;
case SCSI_PROT_WRITE_INSERT:
eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
break;
default:
return;
}
if (scmd->prot_flags & SCSI_PROT_GUARD_CHECK)
eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
if (scmd->prot_flags & SCSI_PROT_REF_CHECK)
eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG;
if (scmd->prot_flags & SCSI_PROT_REF_INCREMENT) {
eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG;
mpi_request->CDB.EEDP32.PrimaryReferenceTag =
cpu_to_be32(scsi_prot_ref_tag(scmd));
}
mpi_request_3v->EEDPBlockSize = cpu_to_le16(scsi_prot_interval(scmd));
if (ioc->is_gen35_ioc)
eedp_flags |= MPI25_SCSIIO_EEDPFLAGS_APPTAG_DISABLE_MODE;
mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
}
/**
* _scsih_eedp_error_handling - return sense code for EEDP errors
* @scmd: pointer to scsi command object
* @ioc_status: ioc status
*/
static void
_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
{
u8 ascq;
switch (ioc_status) {
case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
ascq = 0x01;
break;
case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
ascq = 0x02;
break;
case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
ascq = 0x03;
break;
default:
ascq = 0x00;
break;
}
scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x10, ascq);
set_host_byte(scmd, DID_ABORT);
}
/**
* scsih_qcmd - main scsi request entry point
* @shost: SCSI host pointer
* @scmd: pointer to scsi command object
*
* The callback index is set inside `ioc->scsi_io_cb_idx`.
*
* Return: 0 on success. If there's a failure, return either:
* SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
* SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
*/
static int
scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _raid_device *raid_device;
struct request *rq = scsi_cmd_to_rq(scmd);
int class;
Mpi25SCSIIORequest_t *mpi_request;
struct _pcie_device *pcie_device = NULL;
u32 mpi_control;
u16 smid;
u16 handle;
if (ioc->logging_level & MPT_DEBUG_SCSI)
scsi_print_command(scmd);
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
scmd->result = DID_NO_CONNECT << 16;
scsi_done(scmd);
return 0;
}
if (!(_scsih_allow_scmd_to_device(ioc, scmd))) {
scmd->result = DID_NO_CONNECT << 16;
scsi_done(scmd);
return 0;
}
sas_target_priv_data = sas_device_priv_data->sas_target;
/* invalid device handle */
handle = sas_target_priv_data->handle;
/*
* Avoid error handling escallation when device is disconnected
*/
if (handle == MPT3SAS_INVALID_DEVICE_HANDLE || sas_device_priv_data->block) {
if (scmd->device->host->shost_state == SHOST_RECOVERY &&
scmd->cmnd[0] == TEST_UNIT_READY) {
scsi_build_sense(scmd, 0, UNIT_ATTENTION, 0x29, 0x07);
scsi_done(scmd);
return 0;
}
}
if (handle == MPT3SAS_INVALID_DEVICE_HANDLE) {
scmd->result = DID_NO_CONNECT << 16;
scsi_done(scmd);
return 0;
}
if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress) {
/* host recovery or link resets sent via IOCTLs */
return SCSI_MLQUEUE_HOST_BUSY;
} else if (sas_target_priv_data->deleted) {
/* device has been deleted */
scmd->result = DID_NO_CONNECT << 16;
scsi_done(scmd);
return 0;
} else if (sas_target_priv_data->tm_busy ||
sas_device_priv_data->block) {
/* device busy with task management */
return SCSI_MLQUEUE_DEVICE_BUSY;
}
/*
* Bug work around for firmware SATL handling. The loop
* is based on atomic operations and ensures consistency
* since we're lockless at this point
*/
do {
if (test_bit(0, &sas_device_priv_data->ata_command_pending))
return SCSI_MLQUEUE_DEVICE_BUSY;
} while (_scsih_set_satl_pending(scmd, true));
if (scmd->sc_data_direction == DMA_FROM_DEVICE)
mpi_control = MPI2_SCSIIO_CONTROL_READ;
else if (scmd->sc_data_direction == DMA_TO_DEVICE)
mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
else
mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
/* set tags */
mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
/* NCQ Prio supported, make sure control indicated high priority */
if (sas_device_priv_data->ncq_prio_enable) {
class = IOPRIO_PRIO_CLASS(req_get_ioprio(rq));
if (class == IOPRIO_CLASS_RT)
mpi_control |= 1 << MPI2_SCSIIO_CONTROL_CMDPRI_SHIFT;
}
/* Make sure Device is not raid volume.
* We do not expose raid functionality to upper layer for warpdrive.
*/
if (((!ioc->is_warpdrive && !scsih_is_raid(&scmd->device->sdev_gendev))
&& !scsih_is_nvme(&scmd->device->sdev_gendev))
&& sas_is_tlr_enabled(scmd->device) && scmd->cmd_len != 32)
mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
if (!smid) {
ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
_scsih_set_satl_pending(scmd, false);
goto out;
}
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
memset(mpi_request, 0, ioc->request_sz);
_scsih_setup_eedp(ioc, scmd, mpi_request);
if (scmd->cmd_len == 32)
mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT)
mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
else
mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
mpi_request->Control = cpu_to_le32(mpi_control);
mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
mpi_request->SenseBufferLowAddress =
mpt3sas_base_get_sense_buffer_dma(ioc, smid);
mpi_request->SGLOffset0 = offsetof(Mpi25SCSIIORequest_t, SGL) / 4;
int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
mpi_request->LUN);
memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
if (mpi_request->DataLength) {
pcie_device = sas_target_priv_data->pcie_dev;
if (ioc->build_sg_scmd(ioc, scmd, smid, pcie_device)) {
mpt3sas_base_free_smid(ioc, smid);
_scsih_set_satl_pending(scmd, false);
goto out;
}
} else
ioc->build_zero_len_sge(ioc, &mpi_request->SGL);
raid_device = sas_target_priv_data->raid_device;
if (raid_device && raid_device->direct_io_enabled)
mpt3sas_setup_direct_io(ioc, scmd,
raid_device, mpi_request);
if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)) {
if (sas_target_priv_data->flags & MPT_TARGET_FASTPATH_IO) {
mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len |
MPI25_SCSIIO_IOFLAGS_FAST_PATH);
ioc->put_smid_fast_path(ioc, smid, handle);
} else
ioc->put_smid_scsi_io(ioc, smid,
le16_to_cpu(mpi_request->DevHandle));
} else
ioc->put_smid_default(ioc, smid);
return 0;
out:
return SCSI_MLQUEUE_HOST_BUSY;
}
/**
* _scsih_normalize_sense - normalize descriptor and fixed format sense data
* @sense_buffer: sense data returned by target
* @data: normalized skey/asc/ascq
*/
static void
_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
{
if ((sense_buffer[0] & 0x7F) >= 0x72) {
/* descriptor format */
data->skey = sense_buffer[1] & 0x0F;
data->asc = sense_buffer[2];
data->ascq = sense_buffer[3];
} else {
/* fixed format */
data->skey = sense_buffer[2] & 0x0F;
data->asc = sense_buffer[12];
data->ascq = sense_buffer[13];
}
}
/**
* _scsih_scsi_ioc_info - translated non-successful SCSI_IO request
* @ioc: per adapter object
* @scmd: pointer to scsi command object
* @mpi_reply: reply mf payload returned from firmware
* @smid: ?
*
* scsi_status - SCSI Status code returned from target device
* scsi_state - state info associated with SCSI_IO determined by ioc
* ioc_status - ioc supplied status info
*/
static void
_scsih_scsi_ioc_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
{
u32 response_info;
u8 *response_bytes;
u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
MPI2_IOCSTATUS_MASK;
u8 scsi_state = mpi_reply->SCSIState;
u8 scsi_status = mpi_reply->SCSIStatus;
char *desc_ioc_state = NULL;
char *desc_scsi_status = NULL;
char *desc_scsi_state = ioc->tmp_string;
u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
struct _sas_device *sas_device = NULL;
struct _pcie_device *pcie_device = NULL;
struct scsi_target *starget = scmd->device->sdev_target;
struct MPT3SAS_TARGET *priv_target = starget->hostdata;
char *device_str = NULL;
if (!priv_target)
return;
if (ioc->hide_ir_msg)
device_str = "WarpDrive";
else
device_str = "volume";
if (log_info == 0x31170000)
return;
switch (ioc_status) {
case MPI2_IOCSTATUS_SUCCESS:
desc_ioc_state = "success";
break;
case MPI2_IOCSTATUS_INVALID_FUNCTION:
desc_ioc_state = "invalid function";
break;
case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
desc_ioc_state = "scsi recovered error";
break;
case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
desc_ioc_state = "scsi invalid dev handle";
break;
case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
desc_ioc_state = "scsi device not there";
break;
case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
desc_ioc_state = "scsi data overrun";
break;
case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
desc_ioc_state = "scsi data underrun";
break;
case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
desc_ioc_state = "scsi io data error";
break;
case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
desc_ioc_state = "scsi protocol error";
break;
case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
desc_ioc_state = "scsi task terminated";
break;
case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
desc_ioc_state = "scsi residual mismatch";
break;
case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
desc_ioc_state = "scsi task mgmt failed";
break;
case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
desc_ioc_state = "scsi ioc terminated";
break;
case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
desc_ioc_state = "scsi ext terminated";
break;
case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
desc_ioc_state = "eedp guard error";
break;
case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
desc_ioc_state = "eedp ref tag error";
break;
case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
desc_ioc_state = "eedp app tag error";
break;
case MPI2_IOCSTATUS_INSUFFICIENT_POWER:
desc_ioc_state = "insufficient power";
break;
default:
desc_ioc_state = "unknown";
break;
}
switch (scsi_status) {
case MPI2_SCSI_STATUS_GOOD:
desc_scsi_status = "good";
break;
case MPI2_SCSI_STATUS_CHECK_CONDITION:
desc_scsi_status = "check condition";
break;
case MPI2_SCSI_STATUS_CONDITION_MET:
desc_scsi_status = "condition met";
break;
case MPI2_SCSI_STATUS_BUSY:
desc_scsi_status = "busy";
break;
case MPI2_SCSI_STATUS_INTERMEDIATE:
desc_scsi_status = "intermediate";
break;
case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
desc_scsi_status = "intermediate condmet";
break;
case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
desc_scsi_status = "reservation conflict";
break;
case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
desc_scsi_status = "command terminated";
break;
case MPI2_SCSI_STATUS_TASK_SET_FULL:
desc_scsi_status = "task set full";
break;
case MPI2_SCSI_STATUS_ACA_ACTIVE:
desc_scsi_status = "aca active";
break;
case MPI2_SCSI_STATUS_TASK_ABORTED:
desc_scsi_status = "task aborted";
break;
default:
desc_scsi_status = "unknown";
break;
}
desc_scsi_state[0] = '\0';
if (!scsi_state)
desc_scsi_state = " ";
if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
strcat(desc_scsi_state, "response info ");
if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
strcat(desc_scsi_state, "state terminated ");
if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
strcat(desc_scsi_state, "no status ");
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
strcat(desc_scsi_state, "autosense failed ");
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
strcat(desc_scsi_state, "autosense valid ");
scsi_print_command(scmd);
if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
ioc_warn(ioc, "\t%s wwid(0x%016llx)\n",
device_str, (u64)priv_target->sas_address);
} else if (priv_target->flags & MPT_TARGET_FLAGS_PCIE_DEVICE) {
pcie_device = mpt3sas_get_pdev_from_target(ioc, priv_target);
if (pcie_device) {
ioc_info(ioc, "\twwid(0x%016llx), port(%d)\n",
(u64)pcie_device->wwid, pcie_device->port_num);
if (pcie_device->enclosure_handle != 0)
ioc_info(ioc, "\tenclosure logical id(0x%016llx), slot(%d)\n",
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot);
if (pcie_device->connector_name[0])
ioc_info(ioc, "\tenclosure level(0x%04x), connector name( %s)\n",
pcie_device->enclosure_level,
pcie_device->connector_name);
pcie_device_put(pcie_device);
}
} else {
sas_device = mpt3sas_get_sdev_from_target(ioc, priv_target);
if (sas_device) {
ioc_warn(ioc, "\tsas_address(0x%016llx), phy(%d)\n",
(u64)sas_device->sas_address, sas_device->phy);
_scsih_display_enclosure_chassis_info(ioc, sas_device,
NULL, NULL);
sas_device_put(sas_device);
}
}
ioc_warn(ioc, "\thandle(0x%04x), ioc_status(%s)(0x%04x), smid(%d)\n",
le16_to_cpu(mpi_reply->DevHandle),
desc_ioc_state, ioc_status, smid);
ioc_warn(ioc, "\trequest_len(%d), underflow(%d), resid(%d)\n",
scsi_bufflen(scmd), scmd->underflow, scsi_get_resid(scmd));
ioc_warn(ioc, "\ttag(%d), transfer_count(%d), sc->result(0x%08x)\n",
le16_to_cpu(mpi_reply->TaskTag),
le32_to_cpu(mpi_reply->TransferCount), scmd->result);
ioc_warn(ioc, "\tscsi_status(%s)(0x%02x), scsi_state(%s)(0x%02x)\n",
desc_scsi_status, scsi_status, desc_scsi_state, scsi_state);
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
struct sense_info data;
_scsih_normalize_sense(scmd->sense_buffer, &data);
ioc_warn(ioc, "\t[sense_key,asc,ascq]: [0x%02x,0x%02x,0x%02x], count(%d)\n",
data.skey, data.asc, data.ascq,
le32_to_cpu(mpi_reply->SenseCount));
}
if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
response_info = le32_to_cpu(mpi_reply->ResponseInfo);
response_bytes = (u8 *)&response_info;
_scsih_response_code(ioc, response_bytes[0]);
}
}
/**
* _scsih_turn_on_pfa_led - illuminate PFA LED
* @ioc: per adapter object
* @handle: device handle
* Context: process
*/
static void
_scsih_turn_on_pfa_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi2SepReply_t mpi_reply;
Mpi2SepRequest_t mpi_request;
struct _sas_device *sas_device;
sas_device = mpt3sas_get_sdev_by_handle(ioc, handle);
if (!sas_device)
return;
memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
mpi_request.SlotStatus =
cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
mpi_request.DevHandle = cpu_to_le16(handle);
mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
if ((mpt3sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
&mpi_request)) != 0) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
sas_device->pfa_led_on = 1;
if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
dewtprintk(ioc,
ioc_info(ioc, "enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n",
le16_to_cpu(mpi_reply.IOCStatus),
le32_to_cpu(mpi_reply.IOCLogInfo)));
goto out;
}
out:
sas_device_put(sas_device);
}
/**
* _scsih_turn_off_pfa_led - turn off Fault LED
* @ioc: per adapter object
* @sas_device: sas device whose PFA LED has to turned off
* Context: process
*/
static void
_scsih_turn_off_pfa_led(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
Mpi2SepReply_t mpi_reply;
Mpi2SepRequest_t mpi_request;
memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
mpi_request.SlotStatus = 0;
mpi_request.Slot = cpu_to_le16(sas_device->slot);
mpi_request.DevHandle = 0;
mpi_request.EnclosureHandle = cpu_to_le16(sas_device->enclosure_handle);
mpi_request.Flags = MPI2_SEP_REQ_FLAGS_ENCLOSURE_SLOT_ADDRESS;
if ((mpt3sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
&mpi_request)) != 0) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
dewtprintk(ioc,
ioc_info(ioc, "enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n",
le16_to_cpu(mpi_reply.IOCStatus),
le32_to_cpu(mpi_reply.IOCLogInfo)));
return;
}
}
/**
* _scsih_send_event_to_turn_on_pfa_led - fire delayed event
* @ioc: per adapter object
* @handle: device handle
* Context: interrupt.
*/
static void
_scsih_send_event_to_turn_on_pfa_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct fw_event_work *fw_event;
fw_event = alloc_fw_event_work(0);
if (!fw_event)
return;
fw_event->event = MPT3SAS_TURN_ON_PFA_LED;
fw_event->device_handle = handle;
fw_event->ioc = ioc;
_scsih_fw_event_add(ioc, fw_event);
fw_event_work_put(fw_event);
}
/**
* _scsih_smart_predicted_fault - process smart errors
* @ioc: per adapter object
* @handle: device handle
* Context: interrupt.
*/
static void
_scsih_smart_predicted_fault(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct scsi_target *starget;
struct MPT3SAS_TARGET *sas_target_priv_data;
Mpi2EventNotificationReply_t *event_reply;
Mpi2EventDataSasDeviceStatusChange_t *event_data;
struct _sas_device *sas_device;
ssize_t sz;
unsigned long flags;
/* only handle non-raid devices */
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_handle(ioc, handle);
if (!sas_device)
goto out_unlock;
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)))
goto out_unlock;
_scsih_display_enclosure_chassis_info(NULL, sas_device, NULL, starget);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
_scsih_send_event_to_turn_on_pfa_led(ioc, handle);
/* insert into event log */
sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
sizeof(Mpi2EventDataSasDeviceStatusChange_t);
event_reply = kzalloc(sz, GFP_ATOMIC);
if (!event_reply) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
event_reply->Event =
cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
event_reply->MsgLength = sz/4;
event_reply->EventDataLength =
cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
event_reply->EventData;
event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
event_data->ASC = 0x5D;
event_data->DevHandle = cpu_to_le16(handle);
event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
mpt3sas_ctl_add_to_event_log(ioc, event_reply);
kfree(event_reply);
out:
if (sas_device)
sas_device_put(sas_device);
return;
out_unlock:
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
goto out;
}
/**
* _scsih_io_done - scsi request callback
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
*
* Callback handler when using _scsih_qcmd.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
{
Mpi25SCSIIORequest_t *mpi_request;
Mpi2SCSIIOReply_t *mpi_reply;
struct scsi_cmnd *scmd;
struct scsiio_tracker *st;
u16 ioc_status;
u32 xfer_cnt;
u8 scsi_state;
u8 scsi_status;
u32 log_info;
struct MPT3SAS_DEVICE *sas_device_priv_data;
u32 response_code = 0;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
if (scmd == NULL)
return 1;
_scsih_set_satl_pending(scmd, false);
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
if (mpi_reply == NULL) {
scmd->result = DID_OK << 16;
goto out;
}
sas_device_priv_data = scmd->device->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
sas_device_priv_data->sas_target->deleted) {
scmd->result = DID_NO_CONNECT << 16;
goto out;
}
ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
/*
* WARPDRIVE: If direct_io is set then it is directIO,
* the failed direct I/O should be redirected to volume
*/
st = scsi_cmd_priv(scmd);
if (st->direct_io &&
((ioc_status & MPI2_IOCSTATUS_MASK)
!= MPI2_IOCSTATUS_SCSI_TASK_TERMINATED)) {
st->direct_io = 0;
st->scmd = scmd;
memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
mpi_request->DevHandle =
cpu_to_le16(sas_device_priv_data->sas_target->handle);
ioc->put_smid_scsi_io(ioc, smid,
sas_device_priv_data->sas_target->handle);
return 0;
}
/* turning off TLR */
scsi_state = mpi_reply->SCSIState;
if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
response_code =
le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
if (!sas_device_priv_data->tlr_snoop_check) {
sas_device_priv_data->tlr_snoop_check++;
if ((!ioc->is_warpdrive &&
!scsih_is_raid(&scmd->device->sdev_gendev) &&
!scsih_is_nvme(&scmd->device->sdev_gendev))
&& sas_is_tlr_enabled(scmd->device) &&
response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME) {
sas_disable_tlr(scmd->device);
sdev_printk(KERN_INFO, scmd->device, "TLR disabled\n");
}
}
xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
else
log_info = 0;
ioc_status &= MPI2_IOCSTATUS_MASK;
scsi_status = mpi_reply->SCSIStatus;
if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
(scsi_status == MPI2_SCSI_STATUS_BUSY ||
scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
ioc_status = MPI2_IOCSTATUS_SUCCESS;
}
if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
struct sense_info data;
const void *sense_data = mpt3sas_base_get_sense_buffer(ioc,
smid);
u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
le32_to_cpu(mpi_reply->SenseCount));
memcpy(scmd->sense_buffer, sense_data, sz);
_scsih_normalize_sense(scmd->sense_buffer, &data);
/* failure prediction threshold exceeded */
if (data.asc == 0x5D)
_scsih_smart_predicted_fault(ioc,
le16_to_cpu(mpi_reply->DevHandle));
mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
if ((ioc->logging_level & MPT_DEBUG_REPLY) &&
((scmd->sense_buffer[2] == UNIT_ATTENTION) ||
(scmd->sense_buffer[2] == MEDIUM_ERROR) ||
(scmd->sense_buffer[2] == HARDWARE_ERROR)))
_scsih_scsi_ioc_info(ioc, scmd, mpi_reply, smid);
}
switch (ioc_status) {
case MPI2_IOCSTATUS_BUSY:
case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
scmd->result = SAM_STAT_BUSY;
break;
case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
scmd->result = DID_NO_CONNECT << 16;
break;
case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
if (sas_device_priv_data->block) {
scmd->result = DID_TRANSPORT_DISRUPTED << 16;
goto out;
}
if (log_info == 0x31110630) {
if (scmd->retries > 2) {
scmd->result = DID_NO_CONNECT << 16;
scsi_device_set_state(scmd->device,
SDEV_OFFLINE);
} else {
scmd->result = DID_SOFT_ERROR << 16;
scmd->device->expecting_cc_ua = 1;
}
break;
} else if (log_info == VIRTUAL_IO_FAILED_RETRY) {
scmd->result = DID_RESET << 16;
break;
} else if ((scmd->device->channel == RAID_CHANNEL) &&
(scsi_state == (MPI2_SCSI_STATE_TERMINATED |
MPI2_SCSI_STATE_NO_SCSI_STATUS))) {
scmd->result = DID_RESET << 16;
break;
}
scmd->result = DID_SOFT_ERROR << 16;
break;
case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
scmd->result = DID_RESET << 16;
break;
case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
scmd->result = DID_SOFT_ERROR << 16;
else
scmd->result = (DID_OK << 16) | scsi_status;
break;
case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
scmd->result = (DID_OK << 16) | scsi_status;
if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
break;
if (xfer_cnt < scmd->underflow) {
if (scsi_status == SAM_STAT_BUSY)
scmd->result = SAM_STAT_BUSY;
else
scmd->result = DID_SOFT_ERROR << 16;
} else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
MPI2_SCSI_STATE_NO_SCSI_STATUS))
scmd->result = DID_SOFT_ERROR << 16;
else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
scmd->result = DID_RESET << 16;
else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
scsi_build_sense(scmd, 0, ILLEGAL_REQUEST,
0x20, 0);
}
break;
case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
scsi_set_resid(scmd, 0);
fallthrough;
case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
case MPI2_IOCSTATUS_SUCCESS:
scmd->result = (DID_OK << 16) | scsi_status;
if (response_code ==
MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
(scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
MPI2_SCSI_STATE_NO_SCSI_STATUS)))
scmd->result = DID_SOFT_ERROR << 16;
else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
scmd->result = DID_RESET << 16;
break;
case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
_scsih_eedp_error_handling(scmd, ioc_status);
break;
case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
case MPI2_IOCSTATUS_INVALID_FUNCTION:
case MPI2_IOCSTATUS_INVALID_SGL:
case MPI2_IOCSTATUS_INTERNAL_ERROR:
case MPI2_IOCSTATUS_INVALID_FIELD:
case MPI2_IOCSTATUS_INVALID_STATE:
case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
case MPI2_IOCSTATUS_INSUFFICIENT_POWER:
default:
scmd->result = DID_SOFT_ERROR << 16;
break;
}
if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
_scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
out:
scsi_dma_unmap(scmd);
mpt3sas_base_free_smid(ioc, smid);
scsi_done(scmd);
return 0;
}
/**
* _scsih_update_vphys_after_reset - update the Port's
* vphys_list after reset
* @ioc: per adapter object
*
* Returns nothing.
*/
static void
_scsih_update_vphys_after_reset(struct MPT3SAS_ADAPTER *ioc)
{
u16 sz, ioc_status;
int i;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
u16 attached_handle;
u64 attached_sas_addr;
u8 found = 0, port_id;
Mpi2SasPhyPage0_t phy_pg0;
struct hba_port *port, *port_next, *mport;
struct virtual_phy *vphy, *vphy_next;
struct _sas_device *sas_device;
/*
* Mark all the vphys objects as dirty.
*/
list_for_each_entry_safe(port, port_next,
&ioc->port_table_list, list) {
if (!port->vphys_mask)
continue;
list_for_each_entry_safe(vphy, vphy_next,
&port->vphys_list, list) {
vphy->flags |= MPT_VPHY_FLAG_DIRTY_PHY;
}
}
/*
* Read SASIOUnitPage0 to get each HBA Phy's data.
*/
sz = struct_size(sas_iounit_pg0, PhyData, ioc->sas_hba.num_phys);
sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_iounit_pg0) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
sas_iounit_pg0, sz)) != 0)
goto out;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
goto out;
/*
* Loop over each HBA Phy.
*/
for (i = 0; i < ioc->sas_hba.num_phys; i++) {
/*
* Check whether Phy's Negotiation Link Rate is > 1.5G or not.
*/
if ((sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4) <
MPI2_SAS_NEG_LINK_RATE_1_5)
continue;
/*
* Check whether Phy is connected to SEP device or not,
* if it is SEP device then read the Phy's SASPHYPage0 data to
* determine whether Phy is a virtual Phy or not. if it is
* virtual phy then it is conformed that the attached remote
* device is a HBA's vSES device.
*/
if (!(le32_to_cpu(
sas_iounit_pg0->PhyData[i].ControllerPhyDeviceInfo) &
MPI2_SAS_DEVICE_INFO_SEP))
continue;
if ((mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
i))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
continue;
}
if (!(le32_to_cpu(phy_pg0.PhyInfo) &
MPI2_SAS_PHYINFO_VIRTUAL_PHY))
continue;
/*
* Get the vSES device's SAS Address.
*/
attached_handle = le16_to_cpu(
sas_iounit_pg0->PhyData[i].AttachedDevHandle);
if (_scsih_get_sas_address(ioc, attached_handle,
&attached_sas_addr) != 0) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
continue;
}
found = 0;
port = port_next = NULL;
/*
* Loop over each virtual_phy object from
* each port's vphys_list.
*/
list_for_each_entry_safe(port,
port_next, &ioc->port_table_list, list) {
if (!port->vphys_mask)
continue;
list_for_each_entry_safe(vphy, vphy_next,
&port->vphys_list, list) {
/*
* Continue with next virtual_phy object
* if the object is not marked as dirty.
*/
if (!(vphy->flags & MPT_VPHY_FLAG_DIRTY_PHY))
continue;
/*
* Continue with next virtual_phy object
* if the object's SAS Address is not equals
* to current Phy's vSES device SAS Address.
*/
if (vphy->sas_address != attached_sas_addr)
continue;
/*
* Enable current Phy number bit in object's
* phy_mask field.
*/
if (!(vphy->phy_mask & (1 << i)))
vphy->phy_mask = (1 << i);
/*
* Get hba_port object from hba_port table
* corresponding to current phy's Port ID.
* if there is no hba_port object corresponding
* to Phy's Port ID then create a new hba_port
* object & add to hba_port table.
*/
port_id = sas_iounit_pg0->PhyData[i].Port;
mport = mpt3sas_get_port_by_id(ioc, port_id, 1);
if (!mport) {
mport = kzalloc(
sizeof(struct hba_port), GFP_KERNEL);
if (!mport)
break;
mport->port_id = port_id;
ioc_info(ioc,
"%s: hba_port entry: %p, port: %d is added to hba_port list\n",
__func__, mport, mport->port_id);
list_add_tail(&mport->list,
&ioc->port_table_list);
}
/*
* If mport & port pointers are not pointing to
* same hba_port object then it means that vSES
* device's Port ID got changed after reset and
* hence move current virtual_phy object from
* port's vphys_list to mport's vphys_list.
*/
if (port != mport) {
if (!mport->vphys_mask)
INIT_LIST_HEAD(
&mport->vphys_list);
mport->vphys_mask |= (1 << i);
port->vphys_mask &= ~(1 << i);
list_move(&vphy->list,
&mport->vphys_list);
sas_device = mpt3sas_get_sdev_by_addr(
ioc, attached_sas_addr, port);
if (sas_device)
sas_device->port = mport;
}
/*
* Earlier while updating the hba_port table,
* it is determined that there is no other
* direct attached device with mport's Port ID,
* Hence mport was marked as dirty. Only vSES
* device has this Port ID, so unmark the mport
* as dirt.
*/
if (mport->flags & HBA_PORT_FLAG_DIRTY_PORT) {
mport->sas_address = 0;
mport->phy_mask = 0;
mport->flags &=
~HBA_PORT_FLAG_DIRTY_PORT;
}
/*
* Unmark current virtual_phy object as dirty.
*/
vphy->flags &= ~MPT_VPHY_FLAG_DIRTY_PHY;
found = 1;
break;
}
if (found)
break;
}
}
out:
kfree(sas_iounit_pg0);
}
/**
* _scsih_get_port_table_after_reset - Construct temporary port table
* @ioc: per adapter object
* @port_table: address where port table needs to be constructed
*
* return number of HBA port entries available after reset.
*/
static int
_scsih_get_port_table_after_reset(struct MPT3SAS_ADAPTER *ioc,
struct hba_port *port_table)
{
u16 sz, ioc_status;
int i, j;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
u16 attached_handle;
u64 attached_sas_addr;
u8 found = 0, port_count = 0, port_id;
sz = struct_size(sas_iounit_pg0, PhyData, ioc->sas_hba.num_phys);
sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_iounit_pg0) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return port_count;
}
if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
sas_iounit_pg0, sz)) != 0)
goto out;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
goto out;
for (i = 0; i < ioc->sas_hba.num_phys; i++) {
found = 0;
if ((sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4) <
MPI2_SAS_NEG_LINK_RATE_1_5)
continue;
attached_handle =
le16_to_cpu(sas_iounit_pg0->PhyData[i].AttachedDevHandle);
if (_scsih_get_sas_address(
ioc, attached_handle, &attached_sas_addr) != 0) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
continue;
}
for (j = 0; j < port_count; j++) {
port_id = sas_iounit_pg0->PhyData[i].Port;
if (port_table[j].port_id == port_id &&
port_table[j].sas_address == attached_sas_addr) {
port_table[j].phy_mask |= (1 << i);
found = 1;
break;
}
}
if (found)
continue;
port_id = sas_iounit_pg0->PhyData[i].Port;
port_table[port_count].port_id = port_id;
port_table[port_count].phy_mask = (1 << i);
port_table[port_count].sas_address = attached_sas_addr;
port_count++;
}
out:
kfree(sas_iounit_pg0);
return port_count;
}
enum hba_port_matched_codes {
NOT_MATCHED = 0,
MATCHED_WITH_ADDR_AND_PHYMASK,
MATCHED_WITH_ADDR_SUBPHYMASK_AND_PORT,
MATCHED_WITH_ADDR_AND_SUBPHYMASK,
MATCHED_WITH_ADDR,
};
/**
* _scsih_look_and_get_matched_port_entry - Get matched hba port entry
* from HBA port table
* @ioc: per adapter object
* @port_entry: hba port entry from temporary port table which needs to be
* searched for matched entry in the HBA port table
* @matched_port_entry: save matched hba port entry here
* @count: count of matched entries
*
* return type of matched entry found.
*/
static enum hba_port_matched_codes
_scsih_look_and_get_matched_port_entry(struct MPT3SAS_ADAPTER *ioc,
struct hba_port *port_entry,
struct hba_port **matched_port_entry, int *count)
{
struct hba_port *port_table_entry, *matched_port = NULL;
enum hba_port_matched_codes matched_code = NOT_MATCHED;
int lcount = 0;
*matched_port_entry = NULL;
list_for_each_entry(port_table_entry, &ioc->port_table_list, list) {
if (!(port_table_entry->flags & HBA_PORT_FLAG_DIRTY_PORT))
continue;
if ((port_table_entry->sas_address == port_entry->sas_address)
&& (port_table_entry->phy_mask == port_entry->phy_mask)) {
matched_code = MATCHED_WITH_ADDR_AND_PHYMASK;
matched_port = port_table_entry;
break;
}
if ((port_table_entry->sas_address == port_entry->sas_address)
&& (port_table_entry->phy_mask & port_entry->phy_mask)
&& (port_table_entry->port_id == port_entry->port_id)) {
matched_code = MATCHED_WITH_ADDR_SUBPHYMASK_AND_PORT;
matched_port = port_table_entry;
continue;
}
if ((port_table_entry->sas_address == port_entry->sas_address)
&& (port_table_entry->phy_mask & port_entry->phy_mask)) {
if (matched_code ==
MATCHED_WITH_ADDR_SUBPHYMASK_AND_PORT)
continue;
matched_code = MATCHED_WITH_ADDR_AND_SUBPHYMASK;
matched_port = port_table_entry;
continue;
}
if (port_table_entry->sas_address == port_entry->sas_address) {
if (matched_code ==
MATCHED_WITH_ADDR_SUBPHYMASK_AND_PORT)
continue;
if (matched_code == MATCHED_WITH_ADDR_AND_SUBPHYMASK)
continue;
matched_code = MATCHED_WITH_ADDR;
matched_port = port_table_entry;
lcount++;
}
}
*matched_port_entry = matched_port;
if (matched_code == MATCHED_WITH_ADDR)
*count = lcount;
return matched_code;
}
/**
* _scsih_del_phy_part_of_anther_port - remove phy if it
* is a part of anther port
*@ioc: per adapter object
*@port_table: port table after reset
*@index: hba port entry index
*@port_count: number of ports available after host reset
*@offset: HBA phy bit offset
*
*/
static void
_scsih_del_phy_part_of_anther_port(struct MPT3SAS_ADAPTER *ioc,
struct hba_port *port_table,
int index, u8 port_count, int offset)
{
struct _sas_node *sas_node = &ioc->sas_hba;
u32 i, found = 0;
for (i = 0; i < port_count; i++) {
if (i == index)
continue;
if (port_table[i].phy_mask & (1 << offset)) {
mpt3sas_transport_del_phy_from_an_existing_port(
ioc, sas_node, &sas_node->phy[offset]);
found = 1;
break;
}
}
if (!found)
port_table[index].phy_mask |= (1 << offset);
}
/**
* _scsih_add_or_del_phys_from_existing_port - add/remove phy to/from
* right port
*@ioc: per adapter object
*@hba_port_entry: hba port table entry
*@port_table: temporary port table
*@index: hba port entry index
*@port_count: number of ports available after host reset
*
*/
static void
_scsih_add_or_del_phys_from_existing_port(struct MPT3SAS_ADAPTER *ioc,
struct hba_port *hba_port_entry, struct hba_port *port_table,
int index, int port_count)
{
u32 phy_mask, offset = 0;
struct _sas_node *sas_node = &ioc->sas_hba;
phy_mask = hba_port_entry->phy_mask ^ port_table[index].phy_mask;
for (offset = 0; offset < ioc->sas_hba.num_phys; offset++) {
if (phy_mask & (1 << offset)) {
if (!(port_table[index].phy_mask & (1 << offset))) {
_scsih_del_phy_part_of_anther_port(
ioc, port_table, index, port_count,
offset);
continue;
}
if (sas_node->phy[offset].phy_belongs_to_port)
mpt3sas_transport_del_phy_from_an_existing_port(
ioc, sas_node, &sas_node->phy[offset]);
mpt3sas_transport_add_phy_to_an_existing_port(
ioc, sas_node, &sas_node->phy[offset],
hba_port_entry->sas_address,
hba_port_entry);
}
}
}
/**
* _scsih_del_dirty_vphy - delete virtual_phy objects marked as dirty.
* @ioc: per adapter object
*
* Returns nothing.
*/
static void
_scsih_del_dirty_vphy(struct MPT3SAS_ADAPTER *ioc)
{
struct hba_port *port, *port_next;
struct virtual_phy *vphy, *vphy_next;
list_for_each_entry_safe(port, port_next,
&ioc->port_table_list, list) {
if (!port->vphys_mask)
continue;
list_for_each_entry_safe(vphy, vphy_next,
&port->vphys_list, list) {
if (vphy->flags & MPT_VPHY_FLAG_DIRTY_PHY) {
drsprintk(ioc, ioc_info(ioc,
"Deleting vphy %p entry from port id: %d\t, Phy_mask 0x%08x\n",
vphy, port->port_id,
vphy->phy_mask));
port->vphys_mask &= ~vphy->phy_mask;
list_del(&vphy->list);
kfree(vphy);
}
}
if (!port->vphys_mask && !port->sas_address)
port->flags |= HBA_PORT_FLAG_DIRTY_PORT;
}
}
/**
* _scsih_del_dirty_port_entries - delete dirty port entries from port list
* after host reset
*@ioc: per adapter object
*
*/
static void
_scsih_del_dirty_port_entries(struct MPT3SAS_ADAPTER *ioc)
{
struct hba_port *port, *port_next;
list_for_each_entry_safe(port, port_next,
&ioc->port_table_list, list) {
if (!(port->flags & HBA_PORT_FLAG_DIRTY_PORT) ||
port->flags & HBA_PORT_FLAG_NEW_PORT)
continue;
drsprintk(ioc, ioc_info(ioc,
"Deleting port table entry %p having Port: %d\t Phy_mask 0x%08x\n",
port, port->port_id, port->phy_mask));
list_del(&port->list);
kfree(port);
}
}
/**
* _scsih_sas_port_refresh - Update HBA port table after host reset
* @ioc: per adapter object
*/
static void
_scsih_sas_port_refresh(struct MPT3SAS_ADAPTER *ioc)
{
u32 port_count = 0;
struct hba_port *port_table;
struct hba_port *port_table_entry;
struct hba_port *port_entry = NULL;
int i, j, count = 0, lcount = 0;
int ret;
u64 sas_addr;
u8 num_phys;
drsprintk(ioc, ioc_info(ioc,
"updating ports for sas_host(0x%016llx)\n",
(unsigned long long)ioc->sas_hba.sas_address));
mpt3sas_config_get_number_hba_phys(ioc, &num_phys);
if (!num_phys) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
if (num_phys > ioc->sas_hba.nr_phys_allocated) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
ioc->sas_hba.num_phys = num_phys;
port_table = kcalloc(ioc->sas_hba.num_phys,
sizeof(struct hba_port), GFP_KERNEL);
if (!port_table)
return;
port_count = _scsih_get_port_table_after_reset(ioc, port_table);
if (!port_count)
return;
drsprintk(ioc, ioc_info(ioc, "New Port table\n"));
for (j = 0; j < port_count; j++)
drsprintk(ioc, ioc_info(ioc,
"Port: %d\t Phy_mask 0x%08x\t sas_addr(0x%016llx)\n",
port_table[j].port_id,
port_table[j].phy_mask, port_table[j].sas_address));
list_for_each_entry(port_table_entry, &ioc->port_table_list, list)
port_table_entry->flags |= HBA_PORT_FLAG_DIRTY_PORT;
drsprintk(ioc, ioc_info(ioc, "Old Port table\n"));
port_table_entry = NULL;
list_for_each_entry(port_table_entry, &ioc->port_table_list, list) {
drsprintk(ioc, ioc_info(ioc,
"Port: %d\t Phy_mask 0x%08x\t sas_addr(0x%016llx)\n",
port_table_entry->port_id,
port_table_entry->phy_mask,
port_table_entry->sas_address));
}
for (j = 0; j < port_count; j++) {
ret = _scsih_look_and_get_matched_port_entry(ioc,
&port_table[j], &port_entry, &count);
if (!port_entry) {
drsprintk(ioc, ioc_info(ioc,
"No Matched entry for sas_addr(0x%16llx), Port:%d\n",
port_table[j].sas_address,
port_table[j].port_id));
continue;
}
switch (ret) {
case MATCHED_WITH_ADDR_SUBPHYMASK_AND_PORT:
case MATCHED_WITH_ADDR_AND_SUBPHYMASK:
_scsih_add_or_del_phys_from_existing_port(ioc,
port_entry, port_table, j, port_count);
break;
case MATCHED_WITH_ADDR:
sas_addr = port_table[j].sas_address;
for (i = 0; i < port_count; i++) {
if (port_table[i].sas_address == sas_addr)
lcount++;
}
if (count > 1 || lcount > 1)
port_entry = NULL;
else
_scsih_add_or_del_phys_from_existing_port(ioc,
port_entry, port_table, j, port_count);
}
if (!port_entry)
continue;
if (port_entry->port_id != port_table[j].port_id)
port_entry->port_id = port_table[j].port_id;
port_entry->flags &= ~HBA_PORT_FLAG_DIRTY_PORT;
port_entry->phy_mask = port_table[j].phy_mask;
}
port_table_entry = NULL;
}
/**
* _scsih_alloc_vphy - allocate virtual_phy object
* @ioc: per adapter object
* @port_id: Port ID number
* @phy_num: HBA Phy number
*
* Returns allocated virtual_phy object.
*/
static struct virtual_phy *
_scsih_alloc_vphy(struct MPT3SAS_ADAPTER *ioc, u8 port_id, u8 phy_num)
{
struct virtual_phy *vphy;
struct hba_port *port;
port = mpt3sas_get_port_by_id(ioc, port_id, 0);
if (!port)
return NULL;
vphy = mpt3sas_get_vphy_by_phy(ioc, port, phy_num);
if (!vphy) {
vphy = kzalloc(sizeof(struct virtual_phy), GFP_KERNEL);
if (!vphy)
return NULL;
if (!port->vphys_mask)
INIT_LIST_HEAD(&port->vphys_list);
/*
* Enable bit corresponding to HBA phy number on its
* parent hba_port object's vphys_mask field.
*/
port->vphys_mask |= (1 << phy_num);
vphy->phy_mask |= (1 << phy_num);
list_add_tail(&vphy->list, &port->vphys_list);
ioc_info(ioc,
"vphy entry: %p, port id: %d, phy:%d is added to port's vphys_list\n",
vphy, port->port_id, phy_num);
}
return vphy;
}
/**
* _scsih_sas_host_refresh - refreshing sas host object contents
* @ioc: per adapter object
* Context: user
*
* During port enable, fw will send topology events for every device. Its
* possible that the handles may change from the previous setting, so this
* code keeping handles updating if changed.
*/
static void
_scsih_sas_host_refresh(struct MPT3SAS_ADAPTER *ioc)
{
u16 sz;
u16 ioc_status;
int i;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
u16 attached_handle;
u8 link_rate, port_id;
struct hba_port *port;
Mpi2SasPhyPage0_t phy_pg0;
dtmprintk(ioc,
ioc_info(ioc, "updating handles for sas_host(0x%016llx)\n",
(u64)ioc->sas_hba.sas_address));
sz = struct_size(sas_iounit_pg0, PhyData, ioc->sas_hba.num_phys);
sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_iounit_pg0) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
sas_iounit_pg0, sz)) != 0)
goto out;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
goto out;
for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
if (i == 0)
ioc->sas_hba.handle = le16_to_cpu(
sas_iounit_pg0->PhyData[0].ControllerDevHandle);
port_id = sas_iounit_pg0->PhyData[i].Port;
if (!(mpt3sas_get_port_by_id(ioc, port_id, 0))) {
port = kzalloc(sizeof(struct hba_port), GFP_KERNEL);
if (!port)
goto out;
port->port_id = port_id;
ioc_info(ioc,
"hba_port entry: %p, port: %d is added to hba_port list\n",
port, port->port_id);
if (ioc->shost_recovery)
port->flags = HBA_PORT_FLAG_NEW_PORT;
list_add_tail(&port->list, &ioc->port_table_list);
}
/*
* Check whether current Phy belongs to HBA vSES device or not.
*/
if (le32_to_cpu(sas_iounit_pg0->PhyData[i].ControllerPhyDeviceInfo) &
MPI2_SAS_DEVICE_INFO_SEP &&
(link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5)) {
if ((mpt3sas_config_get_phy_pg0(ioc, &mpi_reply,
&phy_pg0, i))) {
ioc_err(ioc,
"failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
if (!(le32_to_cpu(phy_pg0.PhyInfo) &
MPI2_SAS_PHYINFO_VIRTUAL_PHY))
continue;
/*
* Allocate a virtual_phy object for vSES device, if
* this vSES device is hot added.
*/
if (!_scsih_alloc_vphy(ioc, port_id, i))
goto out;
ioc->sas_hba.phy[i].hba_vphy = 1;
}
/*
* Add new HBA phys to STL if these new phys got added as part
* of HBA Firmware upgrade/downgrade operation.
*/
if (!ioc->sas_hba.phy[i].phy) {
if ((mpt3sas_config_get_phy_pg0(ioc, &mpi_reply,
&phy_pg0, i))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
continue;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
continue;
}
ioc->sas_hba.phy[i].phy_id = i;
mpt3sas_transport_add_host_phy(ioc,
&ioc->sas_hba.phy[i], phy_pg0,
ioc->sas_hba.parent_dev);
continue;
}
ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
AttachedDevHandle);
if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
ioc->sas_hba.phy[i].port =
mpt3sas_get_port_by_id(ioc, port_id, 0);
mpt3sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
attached_handle, i, link_rate,
ioc->sas_hba.phy[i].port);
}
/*
* Clear the phy details if this phy got disabled as part of
* HBA Firmware upgrade/downgrade operation.
*/
for (i = ioc->sas_hba.num_phys;
i < ioc->sas_hba.nr_phys_allocated; i++) {
if (ioc->sas_hba.phy[i].phy &&
ioc->sas_hba.phy[i].phy->negotiated_linkrate >=
SAS_LINK_RATE_1_5_GBPS)
mpt3sas_transport_update_links(ioc,
ioc->sas_hba.sas_address, 0, i,
MPI2_SAS_NEG_LINK_RATE_PHY_DISABLED, NULL);
}
out:
kfree(sas_iounit_pg0);
}
/**
* _scsih_sas_host_add - create sas host object
* @ioc: per adapter object
*
* Creating host side data object, stored in ioc->sas_hba
*/
static void
_scsih_sas_host_add(struct MPT3SAS_ADAPTER *ioc)
{
int i;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
Mpi2SasPhyPage0_t phy_pg0;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2SasEnclosurePage0_t enclosure_pg0;
u16 ioc_status;
u16 sz;
u8 device_missing_delay;
u8 num_phys, port_id;
struct hba_port *port;
mpt3sas_config_get_number_hba_phys(ioc, &num_phys);
if (!num_phys) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
ioc->sas_hba.nr_phys_allocated = max_t(u8,
MPT_MAX_HBA_NUM_PHYS, num_phys);
ioc->sas_hba.phy = kcalloc(ioc->sas_hba.nr_phys_allocated,
sizeof(struct _sas_phy), GFP_KERNEL);
if (!ioc->sas_hba.phy) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
ioc->sas_hba.num_phys = num_phys;
/* sas_iounit page 0 */
sz = struct_size(sas_iounit_pg0, PhyData, ioc->sas_hba.num_phys);
sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_iounit_pg0) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
sas_iounit_pg0, sz))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
/* sas_iounit page 1 */
sz = struct_size(sas_iounit_pg1, PhyData, ioc->sas_hba.num_phys);
sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
if (!sas_iounit_pg1) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
sas_iounit_pg1, sz))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
ioc->io_missing_delay =
sas_iounit_pg1->IODeviceMissingDelay;
device_missing_delay =
sas_iounit_pg1->ReportDeviceMissingDelay;
if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
ioc->device_missing_delay = (device_missing_delay &
MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
else
ioc->device_missing_delay = device_missing_delay &
MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
if ((mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
i))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
if (i == 0)
ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
PhyData[0].ControllerDevHandle);
port_id = sas_iounit_pg0->PhyData[i].Port;
if (!(mpt3sas_get_port_by_id(ioc, port_id, 0))) {
port = kzalloc(sizeof(struct hba_port), GFP_KERNEL);
if (!port)
goto out;
port->port_id = port_id;
ioc_info(ioc,
"hba_port entry: %p, port: %d is added to hba_port list\n",
port, port->port_id);
list_add_tail(&port->list,
&ioc->port_table_list);
}
/*
* Check whether current Phy belongs to HBA vSES device or not.
*/
if ((le32_to_cpu(phy_pg0.PhyInfo) &
MPI2_SAS_PHYINFO_VIRTUAL_PHY) &&
(phy_pg0.NegotiatedLinkRate >> 4) >=
MPI2_SAS_NEG_LINK_RATE_1_5) {
/*
* Allocate a virtual_phy object for vSES device.
*/
if (!_scsih_alloc_vphy(ioc, port_id, i))
goto out;
ioc->sas_hba.phy[i].hba_vphy = 1;
}
ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
ioc->sas_hba.phy[i].phy_id = i;
ioc->sas_hba.phy[i].port =
mpt3sas_get_port_by_id(ioc, port_id, 0);
mpt3sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
phy_pg0, ioc->sas_hba.parent_dev);
}
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
ioc->sas_hba.enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
ioc_info(ioc, "host_add: handle(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
ioc->sas_hba.handle,
(u64)ioc->sas_hba.sas_address,
ioc->sas_hba.num_phys);
if (ioc->sas_hba.enclosure_handle) {
if (!(mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
&enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
ioc->sas_hba.enclosure_handle)))
ioc->sas_hba.enclosure_logical_id =
le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
}
out:
kfree(sas_iounit_pg1);
kfree(sas_iounit_pg0);
}
/**
* _scsih_expander_add - creating expander object
* @ioc: per adapter object
* @handle: expander handle
*
* Creating expander object, stored in ioc->sas_expander_list.
*
* Return: 0 for success, else error.
*/
static int
_scsih_expander_add(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _sas_node *sas_expander;
struct _enclosure_node *enclosure_dev;
Mpi2ConfigReply_t mpi_reply;
Mpi2ExpanderPage0_t expander_pg0;
Mpi2ExpanderPage1_t expander_pg1;
u32 ioc_status;
u16 parent_handle;
u64 sas_address, sas_address_parent = 0;
int i;
unsigned long flags;
struct _sas_port *mpt3sas_port = NULL;
u8 port_id;
int rc = 0;
if (!handle)
return -1;
if (ioc->shost_recovery || ioc->pci_error_recovery)
return -1;
if ((mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
/* handle out of order topology events */
parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
!= 0) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
port_id = expander_pg0.PhysicalPort;
if (sas_address_parent != ioc->sas_hba.sas_address) {
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
sas_address_parent,
mpt3sas_get_port_by_id(ioc, port_id, 0));
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (!sas_expander) {
rc = _scsih_expander_add(ioc, parent_handle);
if (rc != 0)
return rc;
}
}
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_address = le64_to_cpu(expander_pg0.SASAddress);
sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
sas_address, mpt3sas_get_port_by_id(ioc, port_id, 0));
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (sas_expander)
return 0;
sas_expander = kzalloc(sizeof(struct _sas_node),
GFP_KERNEL);
if (!sas_expander) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
sas_expander->handle = handle;
sas_expander->num_phys = expander_pg0.NumPhys;
sas_expander->sas_address_parent = sas_address_parent;
sas_expander->sas_address = sas_address;
sas_expander->port = mpt3sas_get_port_by_id(ioc, port_id, 0);
if (!sas_expander->port) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
ioc_info(ioc, "expander_add: handle(0x%04x), parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
handle, parent_handle,
(u64)sas_expander->sas_address, sas_expander->num_phys);
if (!sas_expander->num_phys) {
rc = -1;
goto out_fail;
}
sas_expander->phy = kcalloc(sas_expander->num_phys,
sizeof(struct _sas_phy), GFP_KERNEL);
if (!sas_expander->phy) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
INIT_LIST_HEAD(&sas_expander->sas_port_list);
mpt3sas_port = mpt3sas_transport_port_add(ioc, handle,
sas_address_parent, sas_expander->port);
if (!mpt3sas_port) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
sas_expander->parent_dev = &mpt3sas_port->rphy->dev;
sas_expander->rphy = mpt3sas_port->rphy;
for (i = 0 ; i < sas_expander->num_phys ; i++) {
if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
&expander_pg1, i, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
sas_expander->phy[i].handle = handle;
sas_expander->phy[i].phy_id = i;
sas_expander->phy[i].port =
mpt3sas_get_port_by_id(ioc, port_id, 0);
if ((mpt3sas_transport_add_expander_phy(ioc,
&sas_expander->phy[i], expander_pg1,
sas_expander->parent_dev))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
}
if (sas_expander->enclosure_handle) {
enclosure_dev =
mpt3sas_scsih_enclosure_find_by_handle(ioc,
sas_expander->enclosure_handle);
if (enclosure_dev)
sas_expander->enclosure_logical_id =
le64_to_cpu(enclosure_dev->pg0.EnclosureLogicalID);
}
_scsih_expander_node_add(ioc, sas_expander);
return 0;
out_fail:
if (mpt3sas_port)
mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
sas_address_parent, sas_expander->port);
kfree(sas_expander);
return rc;
}
/**
* mpt3sas_expander_remove - removing expander object
* @ioc: per adapter object
* @sas_address: expander sas_address
* @port: hba port entry
*/
void
mpt3sas_expander_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
struct hba_port *port)
{
struct _sas_node *sas_expander;
unsigned long flags;
if (ioc->shost_recovery)
return;
if (!port)
return;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
sas_address, port);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (sas_expander)
_scsih_expander_node_remove(ioc, sas_expander);
}
/**
* _scsih_done - internal SCSI_IO callback handler.
* @ioc: per adapter object
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
*
* Callback handler when sending internal generated SCSI_IO.
* The callback index passed is `ioc->scsih_cb_idx`
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
static u8
_scsih_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
{
MPI2DefaultReply_t *mpi_reply;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (ioc->scsih_cmds.status == MPT3_CMD_NOT_USED)
return 1;
if (ioc->scsih_cmds.smid != smid)
return 1;
ioc->scsih_cmds.status |= MPT3_CMD_COMPLETE;
if (mpi_reply) {
memcpy(ioc->scsih_cmds.reply, mpi_reply,
mpi_reply->MsgLength*4);
ioc->scsih_cmds.status |= MPT3_CMD_REPLY_VALID;
}
ioc->scsih_cmds.status &= ~MPT3_CMD_PENDING;
complete(&ioc->scsih_cmds.done);
return 1;
}
#define MPT3_MAX_LUNS (255)
/**
* _scsih_check_access_status - check access flags
* @ioc: per adapter object
* @sas_address: sas address
* @handle: sas device handle
* @access_status: errors returned during discovery of the device
*
* Return: 0 for success, else failure
*/
static u8
_scsih_check_access_status(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
u16 handle, u8 access_status)
{
u8 rc = 1;
char *desc = NULL;
switch (access_status) {
case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
rc = 0;
break;
case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
desc = "sata capability failed";
break;
case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
desc = "sata affiliation conflict";
break;
case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
desc = "route not addressable";
break;
case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
desc = "smp error not addressable";
break;
case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
desc = "device blocked";
break;
case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
desc = "sata initialization failed";
break;
default:
desc = "unknown";
break;
}
if (!rc)
return 0;
ioc_err(ioc, "discovery errors(%s): sas_address(0x%016llx), handle(0x%04x)\n",
desc, (u64)sas_address, handle);
return rc;
}
/**
* _scsih_check_device - checking device responsiveness
* @ioc: per adapter object
* @parent_sas_address: sas address of parent expander or sas host
* @handle: attached device handle
* @phy_number: phy number
* @link_rate: new link rate
*/
static void
_scsih_check_device(struct MPT3SAS_ADAPTER *ioc,
u64 parent_sas_address, u16 handle, u8 phy_number, u8 link_rate)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
struct _sas_device *sas_device = NULL;
struct _enclosure_node *enclosure_dev = NULL;
u32 ioc_status;
unsigned long flags;
u64 sas_address;
struct scsi_target *starget;
struct MPT3SAS_TARGET *sas_target_priv_data;
u32 device_info;
struct hba_port *port;
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
return;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
return;
/* wide port handling ~ we need only handle device once for the phy that
* is matched in sas device page zero
*/
if (phy_number != sas_device_pg0.PhyNum)
return;
/* check if this is end device */
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info)))
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
port = mpt3sas_get_port_by_id(ioc, sas_device_pg0.PhysicalPort, 0);
if (!port)
goto out_unlock;
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
sas_address, port);
if (!sas_device)
goto out_unlock;
if (unlikely(sas_device->handle != handle)) {
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
starget_printk(KERN_INFO, starget,
"handle changed from(0x%04x) to (0x%04x)!!!\n",
sas_device->handle, handle);
sas_target_priv_data->handle = handle;
sas_device->handle = handle;
if (le16_to_cpu(sas_device_pg0.Flags) &
MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
sas_device->enclosure_level =
sas_device_pg0.EnclosureLevel;
memcpy(sas_device->connector_name,
sas_device_pg0.ConnectorName, 4);
sas_device->connector_name[4] = '\0';
} else {
sas_device->enclosure_level = 0;
sas_device->connector_name[0] = '\0';
}
sas_device->enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
sas_device->is_chassis_slot_valid = 0;
enclosure_dev = mpt3sas_scsih_enclosure_find_by_handle(ioc,
sas_device->enclosure_handle);
if (enclosure_dev) {
sas_device->enclosure_logical_id =
le64_to_cpu(enclosure_dev->pg0.EnclosureLogicalID);
if (le16_to_cpu(enclosure_dev->pg0.Flags) &
MPI2_SAS_ENCLS0_FLAGS_CHASSIS_SLOT_VALID) {
sas_device->is_chassis_slot_valid = 1;
sas_device->chassis_slot =
enclosure_dev->pg0.ChassisSlot;
}
}
}
/* check if device is present */
if (!(le16_to_cpu(sas_device_pg0.Flags) &
MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
ioc_err(ioc, "device is not present handle(0x%04x), flags!!!\n",
handle);
goto out_unlock;
}
/* check if there were any issues with discovery */
if (_scsih_check_access_status(ioc, sas_address, handle,
sas_device_pg0.AccessStatus))
goto out_unlock;
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
_scsih_ublock_io_device(ioc, sas_address, port);
if (sas_device)
sas_device_put(sas_device);
return;
out_unlock:
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (sas_device)
sas_device_put(sas_device);
}
/**
* _scsih_add_device - creating sas device object
* @ioc: per adapter object
* @handle: sas device handle
* @phy_num: phy number end device attached to
* @is_pd: is this hidden raid component
*
* Creating end device object, stored in ioc->sas_device_list.
*
* Return: 0 for success, non-zero for failure.
*/
static int
_scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phy_num,
u8 is_pd)
{
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
struct _sas_device *sas_device;
struct _enclosure_node *enclosure_dev = NULL;
u32 ioc_status;
u64 sas_address;
u32 device_info;
u8 port_id;
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
/* check if this is end device */
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info)))
return -1;
set_bit(handle, ioc->pend_os_device_add);
sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
/* check if device is present */
if (!(le16_to_cpu(sas_device_pg0.Flags) &
MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
ioc_err(ioc, "device is not present handle(0x04%x)!!!\n",
handle);
return -1;
}
/* check if there were any issues with discovery */
if (_scsih_check_access_status(ioc, sas_address, handle,
sas_device_pg0.AccessStatus))
return -1;
port_id = sas_device_pg0.PhysicalPort;
sas_device = mpt3sas_get_sdev_by_addr(ioc,
sas_address, mpt3sas_get_port_by_id(ioc, port_id, 0));
if (sas_device) {
clear_bit(handle, ioc->pend_os_device_add);
sas_device_put(sas_device);
return -1;
}
if (sas_device_pg0.EnclosureHandle) {
enclosure_dev =
mpt3sas_scsih_enclosure_find_by_handle(ioc,
le16_to_cpu(sas_device_pg0.EnclosureHandle));
if (enclosure_dev == NULL)
ioc_info(ioc, "Enclosure handle(0x%04x) doesn't match with enclosure device!\n",
sas_device_pg0.EnclosureHandle);
}
sas_device = kzalloc(sizeof(struct _sas_device),
GFP_KERNEL);
if (!sas_device) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 0;
}
kref_init(&sas_device->refcount);
sas_device->handle = handle;
if (_scsih_get_sas_address(ioc,
le16_to_cpu(sas_device_pg0.ParentDevHandle),
&sas_device->sas_address_parent) != 0)
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
sas_device->enclosure_handle =
le16_to_cpu(sas_device_pg0.EnclosureHandle);
if (sas_device->enclosure_handle != 0)
sas_device->slot =
le16_to_cpu(sas_device_pg0.Slot);
sas_device->device_info = device_info;
sas_device->sas_address = sas_address;
sas_device->phy = sas_device_pg0.PhyNum;
sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) &
MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0;
sas_device->port = mpt3sas_get_port_by_id(ioc, port_id, 0);
if (!sas_device->port) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
if (le16_to_cpu(sas_device_pg0.Flags)
& MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
sas_device->enclosure_level =
sas_device_pg0.EnclosureLevel;
memcpy(sas_device->connector_name,
sas_device_pg0.ConnectorName, 4);
sas_device->connector_name[4] = '\0';
} else {
sas_device->enclosure_level = 0;
sas_device->connector_name[0] = '\0';
}
/* get enclosure_logical_id & chassis_slot*/
sas_device->is_chassis_slot_valid = 0;
if (enclosure_dev) {
sas_device->enclosure_logical_id =
le64_to_cpu(enclosure_dev->pg0.EnclosureLogicalID);
if (le16_to_cpu(enclosure_dev->pg0.Flags) &
MPI2_SAS_ENCLS0_FLAGS_CHASSIS_SLOT_VALID) {
sas_device->is_chassis_slot_valid = 1;
sas_device->chassis_slot =
enclosure_dev->pg0.ChassisSlot;
}
}
/* get device name */
sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
sas_device->port_type = sas_device_pg0.MaxPortConnections;
ioc_info(ioc,
"handle(0x%0x) sas_address(0x%016llx) port_type(0x%0x)\n",
handle, sas_device->sas_address, sas_device->port_type);
if (ioc->wait_for_discovery_to_complete)
_scsih_sas_device_init_add(ioc, sas_device);
else
_scsih_sas_device_add(ioc, sas_device);
out:
sas_device_put(sas_device);
return 0;
}
/**
* _scsih_remove_device - removing sas device object
* @ioc: per adapter object
* @sas_device: the sas_device object
*/
static void
_scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
struct MPT3SAS_TARGET *sas_target_priv_data;
if ((ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) &&
(sas_device->pfa_led_on)) {
_scsih_turn_off_pfa_led(ioc, sas_device);
sas_device->pfa_led_on = 0;
}
dewtprintk(ioc,
ioc_info(ioc, "%s: enter: handle(0x%04x), sas_addr(0x%016llx)\n",
__func__,
sas_device->handle, (u64)sas_device->sas_address));
dewtprintk(ioc, _scsih_display_enclosure_chassis_info(ioc, sas_device,
NULL, NULL));
if (sas_device->starget && sas_device->starget->hostdata) {
sas_target_priv_data = sas_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
_scsih_ublock_io_device(ioc, sas_device->sas_address,
sas_device->port);
sas_target_priv_data->handle =
MPT3SAS_INVALID_DEVICE_HANDLE;
}
if (!ioc->hide_drives)
mpt3sas_transport_port_remove(ioc,
sas_device->sas_address,
sas_device->sas_address_parent,
sas_device->port);
ioc_info(ioc, "removing handle(0x%04x), sas_addr(0x%016llx)\n",
sas_device->handle, (u64)sas_device->sas_address);
_scsih_display_enclosure_chassis_info(ioc, sas_device, NULL, NULL);
dewtprintk(ioc,
ioc_info(ioc, "%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n",
__func__,
sas_device->handle, (u64)sas_device->sas_address));
dewtprintk(ioc, _scsih_display_enclosure_chassis_info(ioc, sas_device,
NULL, NULL));
}
/**
* _scsih_sas_topology_change_event_debug - debug for topology event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_sas_topology_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
u8 phy_number;
char *status_str = NULL;
u8 link_rate, prev_link_rate;
switch (event_data->ExpStatus) {
case MPI2_EVENT_SAS_TOPO_ES_ADDED:
status_str = "add";
break;
case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
status_str = "remove";
break;
case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
case 0:
status_str = "responding";
break;
case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
status_str = "remove delay";
break;
default:
status_str = "unknown status";
break;
}
ioc_info(ioc, "sas topology change: (%s)\n", status_str);
pr_info("\thandle(0x%04x), enclosure_handle(0x%04x) " \
"start_phy(%02d), count(%d)\n",
le16_to_cpu(event_data->ExpanderDevHandle),
le16_to_cpu(event_data->EnclosureHandle),
event_data->StartPhyNum, event_data->NumEntries);
for (i = 0; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
phy_number = event_data->StartPhyNum + i;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
switch (reason_code) {
case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
status_str = "target add";
break;
case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
status_str = "target remove";
break;
case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
status_str = "delay target remove";
break;
case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
status_str = "link rate change";
break;
case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
status_str = "target responding";
break;
default:
status_str = "unknown";
break;
}
link_rate = event_data->PHY[i].LinkRate >> 4;
prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
pr_info("\tphy(%02d), attached_handle(0x%04x): %s:" \
" link rate: new(0x%02x), old(0x%02x)\n", phy_number,
handle, status_str, link_rate, prev_link_rate);
}
}
/**
* _scsih_sas_topology_change_event - handle topology changes
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*
*/
static int
_scsih_sas_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
int i;
u16 parent_handle, handle;
u16 reason_code;
u8 phy_number, max_phys;
struct _sas_node *sas_expander;
u64 sas_address;
unsigned long flags;
u8 link_rate, prev_link_rate;
struct hba_port *port;
Mpi2EventDataSasTopologyChangeList_t *event_data =
(Mpi2EventDataSasTopologyChangeList_t *)
fw_event->event_data;
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_topology_change_event_debug(ioc, event_data);
if (ioc->shost_recovery || ioc->remove_host || ioc->pci_error_recovery)
return 0;
if (!ioc->sas_hba.num_phys)
_scsih_sas_host_add(ioc);
else
_scsih_sas_host_refresh(ioc);
if (fw_event->ignore) {
dewtprintk(ioc, ioc_info(ioc, "ignoring expander event\n"));
return 0;
}
parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
port = mpt3sas_get_port_by_id(ioc, event_data->PhysicalPort, 0);
/* handle expander add */
if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
if (_scsih_expander_add(ioc, parent_handle) != 0)
return 0;
spin_lock_irqsave(&ioc->sas_node_lock, flags);
sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
parent_handle);
if (sas_expander) {
sas_address = sas_expander->sas_address;
max_phys = sas_expander->num_phys;
port = sas_expander->port;
} else if (parent_handle < ioc->sas_hba.num_phys) {
sas_address = ioc->sas_hba.sas_address;
max_phys = ioc->sas_hba.num_phys;
} else {
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
return 0;
}
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
/* handle siblings events */
for (i = 0; i < event_data->NumEntries; i++) {
if (fw_event->ignore) {
dewtprintk(ioc,
ioc_info(ioc, "ignoring expander event\n"));
return 0;
}
if (ioc->remove_host || ioc->pci_error_recovery)
return 0;
phy_number = event_data->StartPhyNum + i;
if (phy_number >= max_phys)
continue;
reason_code = event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
if ((event_data->PHY[i].PhyStatus &
MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
continue;
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
if (!handle)
continue;
link_rate = event_data->PHY[i].LinkRate >> 4;
prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
switch (reason_code) {
case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
if (ioc->shost_recovery)
break;
if (link_rate == prev_link_rate)
break;
mpt3sas_transport_update_links(ioc, sas_address,
handle, phy_number, link_rate, port);
if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
break;
_scsih_check_device(ioc, sas_address, handle,
phy_number, link_rate);
if (!test_bit(handle, ioc->pend_os_device_add))
break;
fallthrough;
case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
if (ioc->shost_recovery)
break;
mpt3sas_transport_update_links(ioc, sas_address,
handle, phy_number, link_rate, port);
_scsih_add_device(ioc, handle, phy_number, 0);
break;
case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
_scsih_device_remove_by_handle(ioc, handle);
break;
}
}
/* handle expander removal */
if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
sas_expander)
mpt3sas_expander_remove(ioc, sas_address, port);
return 0;
}
/**
* _scsih_sas_device_status_change_event_debug - debug for device event
* @ioc: ?
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_sas_device_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasDeviceStatusChange_t *event_data)
{
char *reason_str = NULL;
switch (event_data->ReasonCode) {
case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
reason_str = "smart data";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
reason_str = "unsupported device discovered";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
reason_str = "internal device reset";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
reason_str = "internal task abort";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
reason_str = "internal task abort set";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
reason_str = "internal clear task set";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
reason_str = "internal query task";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
reason_str = "sata init failure";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
reason_str = "internal device reset complete";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
reason_str = "internal task abort complete";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
reason_str = "internal async notification";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
reason_str = "expander reduced functionality";
break;
case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
reason_str = "expander reduced functionality complete";
break;
default:
reason_str = "unknown reason";
break;
}
ioc_info(ioc, "device status change: (%s)\thandle(0x%04x), sas address(0x%016llx), tag(%d)",
reason_str, le16_to_cpu(event_data->DevHandle),
(u64)le64_to_cpu(event_data->SASAddress),
le16_to_cpu(event_data->TaskTag));
if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
pr_cont(", ASC(0x%x), ASCQ(0x%x)\n",
event_data->ASC, event_data->ASCQ);
pr_cont("\n");
}
/**
* _scsih_sas_device_status_change_event - handle device status change
* @ioc: per adapter object
* @event_data: The fw event
* Context: user.
*/
static void
_scsih_sas_device_status_change_event(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasDeviceStatusChange_t *event_data)
{
struct MPT3SAS_TARGET *target_priv_data;
struct _sas_device *sas_device;
u64 sas_address;
unsigned long flags;
/* In MPI Revision K (0xC), the internal device reset complete was
* implemented, so avoid setting tm_busy flag for older firmware.
*/
if ((ioc->facts.HeaderVersion >> 8) < 0xC)
return;
if (event_data->ReasonCode !=
MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
event_data->ReasonCode !=
MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_address = le64_to_cpu(event_data->SASAddress);
sas_device = __mpt3sas_get_sdev_by_addr(ioc,
sas_address,
mpt3sas_get_port_by_id(ioc, event_data->PhysicalPort, 0));
if (!sas_device || !sas_device->starget)
goto out;
target_priv_data = sas_device->starget->hostdata;
if (!target_priv_data)
goto out;
if (event_data->ReasonCode ==
MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
target_priv_data->tm_busy = 1;
else
target_priv_data->tm_busy = 0;
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
ioc_info(ioc,
"%s tm_busy flag for handle(0x%04x)\n",
(target_priv_data->tm_busy == 1) ? "Enable" : "Disable",
target_priv_data->handle);
out:
if (sas_device)
sas_device_put(sas_device);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_check_pcie_access_status - check access flags
* @ioc: per adapter object
* @wwid: wwid
* @handle: sas device handle
* @access_status: errors returned during discovery of the device
*
* Return: 0 for success, else failure
*/
static u8
_scsih_check_pcie_access_status(struct MPT3SAS_ADAPTER *ioc, u64 wwid,
u16 handle, u8 access_status)
{
u8 rc = 1;
char *desc = NULL;
switch (access_status) {
case MPI26_PCIEDEV0_ASTATUS_NO_ERRORS:
case MPI26_PCIEDEV0_ASTATUS_NEEDS_INITIALIZATION:
rc = 0;
break;
case MPI26_PCIEDEV0_ASTATUS_CAPABILITY_FAILED:
desc = "PCIe device capability failed";
break;
case MPI26_PCIEDEV0_ASTATUS_DEVICE_BLOCKED:
desc = "PCIe device blocked";
ioc_info(ioc,
"Device with Access Status (%s): wwid(0x%016llx), "
"handle(0x%04x)\n ll only be added to the internal list",
desc, (u64)wwid, handle);
rc = 0;
break;
case MPI26_PCIEDEV0_ASTATUS_MEMORY_SPACE_ACCESS_FAILED:
desc = "PCIe device mem space access failed";
break;
case MPI26_PCIEDEV0_ASTATUS_UNSUPPORTED_DEVICE:
desc = "PCIe device unsupported";
break;
case MPI26_PCIEDEV0_ASTATUS_MSIX_REQUIRED:
desc = "PCIe device MSIx Required";
break;
case MPI26_PCIEDEV0_ASTATUS_INIT_FAIL_MAX:
desc = "PCIe device init fail max";
break;
case MPI26_PCIEDEV0_ASTATUS_UNKNOWN:
desc = "PCIe device status unknown";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_READY_TIMEOUT:
desc = "nvme ready timeout";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_DEVCFG_UNSUPPORTED:
desc = "nvme device configuration unsupported";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_IDENTIFY_FAILED:
desc = "nvme identify failed";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_QCONFIG_FAILED:
desc = "nvme qconfig failed";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_QCREATION_FAILED:
desc = "nvme qcreation failed";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_EVENTCFG_FAILED:
desc = "nvme eventcfg failed";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_GET_FEATURE_STAT_FAILED:
desc = "nvme get feature stat failed";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_IDLE_TIMEOUT:
desc = "nvme idle timeout";
break;
case MPI26_PCIEDEV0_ASTATUS_NVME_FAILURE_STATUS:
desc = "nvme failure status";
break;
default:
ioc_err(ioc, "NVMe discovery error(0x%02x): wwid(0x%016llx), handle(0x%04x)\n",
access_status, (u64)wwid, handle);
return rc;
}
if (!rc)
return rc;
ioc_info(ioc, "NVMe discovery error(%s): wwid(0x%016llx), handle(0x%04x)\n",
desc, (u64)wwid, handle);
return rc;
}
/**
* _scsih_pcie_device_remove_from_sml - removing pcie device
* from SML and free up associated memory
* @ioc: per adapter object
* @pcie_device: the pcie_device object
*/
static void
_scsih_pcie_device_remove_from_sml(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device)
{
struct MPT3SAS_TARGET *sas_target_priv_data;
dewtprintk(ioc,
ioc_info(ioc, "%s: enter: handle(0x%04x), wwid(0x%016llx)\n",
__func__,
pcie_device->handle, (u64)pcie_device->wwid));
if (pcie_device->enclosure_handle != 0)
dewtprintk(ioc,
ioc_info(ioc, "%s: enter: enclosure logical id(0x%016llx), slot(%d)\n",
__func__,
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot));
if (pcie_device->connector_name[0] != '\0')
dewtprintk(ioc,
ioc_info(ioc, "%s: enter: enclosure level(0x%04x), connector name(%s)\n",
__func__,
pcie_device->enclosure_level,
pcie_device->connector_name));
if (pcie_device->starget && pcie_device->starget->hostdata) {
sas_target_priv_data = pcie_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
_scsih_ublock_io_device(ioc, pcie_device->wwid, NULL);
sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
}
ioc_info(ioc, "removing handle(0x%04x), wwid(0x%016llx)\n",
pcie_device->handle, (u64)pcie_device->wwid);
if (pcie_device->enclosure_handle != 0)
ioc_info(ioc, "removing : enclosure logical id(0x%016llx), slot(%d)\n",
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot);
if (pcie_device->connector_name[0] != '\0')
ioc_info(ioc, "removing: enclosure level(0x%04x), connector name( %s)\n",
pcie_device->enclosure_level,
pcie_device->connector_name);
if (pcie_device->starget && (pcie_device->access_status !=
MPI26_PCIEDEV0_ASTATUS_DEVICE_BLOCKED))
scsi_remove_target(&pcie_device->starget->dev);
dewtprintk(ioc,
ioc_info(ioc, "%s: exit: handle(0x%04x), wwid(0x%016llx)\n",
__func__,
pcie_device->handle, (u64)pcie_device->wwid));
if (pcie_device->enclosure_handle != 0)
dewtprintk(ioc,
ioc_info(ioc, "%s: exit: enclosure logical id(0x%016llx), slot(%d)\n",
__func__,
(u64)pcie_device->enclosure_logical_id,
pcie_device->slot));
if (pcie_device->connector_name[0] != '\0')
dewtprintk(ioc,
ioc_info(ioc, "%s: exit: enclosure level(0x%04x), connector name( %s)\n",
__func__,
pcie_device->enclosure_level,
pcie_device->connector_name));
kfree(pcie_device->serial_number);
}
/**
* _scsih_pcie_check_device - checking device responsiveness
* @ioc: per adapter object
* @handle: attached device handle
*/
static void
_scsih_pcie_check_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi2ConfigReply_t mpi_reply;
Mpi26PCIeDevicePage0_t pcie_device_pg0;
u32 ioc_status;
struct _pcie_device *pcie_device;
u64 wwid;
unsigned long flags;
struct scsi_target *starget;
struct MPT3SAS_TARGET *sas_target_priv_data;
u32 device_info;
if ((mpt3sas_config_get_pcie_device_pg0(ioc, &mpi_reply,
&pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle)))
return;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
return;
/* check if this is end device */
device_info = le32_to_cpu(pcie_device_pg0.DeviceInfo);
if (!(_scsih_is_nvme_pciescsi_device(device_info)))
return;
wwid = le64_to_cpu(pcie_device_pg0.WWID);
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_wwid(ioc, wwid);
if (!pcie_device) {
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
return;
}
if (unlikely(pcie_device->handle != handle)) {
starget = pcie_device->starget;
sas_target_priv_data = starget->hostdata;
pcie_device->access_status = pcie_device_pg0.AccessStatus;
starget_printk(KERN_INFO, starget,
"handle changed from(0x%04x) to (0x%04x)!!!\n",
pcie_device->handle, handle);
sas_target_priv_data->handle = handle;
pcie_device->handle = handle;
if (le32_to_cpu(pcie_device_pg0.Flags) &
MPI26_PCIEDEV0_FLAGS_ENCL_LEVEL_VALID) {
pcie_device->enclosure_level =
pcie_device_pg0.EnclosureLevel;
memcpy(&pcie_device->connector_name[0],
&pcie_device_pg0.ConnectorName[0], 4);
} else {
pcie_device->enclosure_level = 0;
pcie_device->connector_name[0] = '\0';
}
}
/* check if device is present */
if (!(le32_to_cpu(pcie_device_pg0.Flags) &
MPI26_PCIEDEV0_FLAGS_DEVICE_PRESENT)) {
ioc_info(ioc, "device is not present handle(0x%04x), flags!!!\n",
handle);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
pcie_device_put(pcie_device);
return;
}
/* check if there were any issues with discovery */
if (_scsih_check_pcie_access_status(ioc, wwid, handle,
pcie_device_pg0.AccessStatus)) {
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
pcie_device_put(pcie_device);
return;
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
pcie_device_put(pcie_device);
_scsih_ublock_io_device(ioc, wwid, NULL);
return;
}
/**
* _scsih_pcie_add_device - creating pcie device object
* @ioc: per adapter object
* @handle: pcie device handle
*
* Creating end device object, stored in ioc->pcie_device_list.
*
* Return: 1 means queue the event later, 0 means complete the event
*/
static int
_scsih_pcie_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
Mpi26PCIeDevicePage0_t pcie_device_pg0;
Mpi26PCIeDevicePage2_t pcie_device_pg2;
Mpi2ConfigReply_t mpi_reply;
struct _pcie_device *pcie_device;
struct _enclosure_node *enclosure_dev;
u32 ioc_status;
u64 wwid;
if ((mpt3sas_config_get_pcie_device_pg0(ioc, &mpi_reply,
&pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 0;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 0;
}
set_bit(handle, ioc->pend_os_device_add);
wwid = le64_to_cpu(pcie_device_pg0.WWID);
/* check if device is present */
if (!(le32_to_cpu(pcie_device_pg0.Flags) &
MPI26_PCIEDEV0_FLAGS_DEVICE_PRESENT)) {
ioc_err(ioc, "device is not present handle(0x04%x)!!!\n",
handle);
return 0;
}
/* check if there were any issues with discovery */
if (_scsih_check_pcie_access_status(ioc, wwid, handle,
pcie_device_pg0.AccessStatus))
return 0;
if (!(_scsih_is_nvme_pciescsi_device(le32_to_cpu
(pcie_device_pg0.DeviceInfo))))
return 0;
pcie_device = mpt3sas_get_pdev_by_wwid(ioc, wwid);
if (pcie_device) {
clear_bit(handle, ioc->pend_os_device_add);
pcie_device_put(pcie_device);
return 0;
}
/* PCIe Device Page 2 contains read-only information about a
* specific NVMe device; therefore, this page is only
* valid for NVMe devices and skip for pcie devices of type scsi.
*/
if (!(mpt3sas_scsih_is_pcie_scsi_device(
le32_to_cpu(pcie_device_pg0.DeviceInfo)))) {
if (mpt3sas_config_get_pcie_device_pg2(ioc, &mpi_reply,
&pcie_device_pg2, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
handle)) {
ioc_err(ioc,
"failure at %s:%d/%s()!\n", __FILE__,
__LINE__, __func__);
return 0;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc,
"failure at %s:%d/%s()!\n", __FILE__,
__LINE__, __func__);
return 0;
}
}
pcie_device = kzalloc(sizeof(struct _pcie_device), GFP_KERNEL);
if (!pcie_device) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 0;
}
kref_init(&pcie_device->refcount);
pcie_device->id = ioc->pcie_target_id++;
pcie_device->channel = PCIE_CHANNEL;
pcie_device->handle = handle;
pcie_device->access_status = pcie_device_pg0.AccessStatus;
pcie_device->device_info = le32_to_cpu(pcie_device_pg0.DeviceInfo);
pcie_device->wwid = wwid;
pcie_device->port_num = pcie_device_pg0.PortNum;
pcie_device->fast_path = (le32_to_cpu(pcie_device_pg0.Flags) &
MPI26_PCIEDEV0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0;
pcie_device->enclosure_handle =
le16_to_cpu(pcie_device_pg0.EnclosureHandle);
if (pcie_device->enclosure_handle != 0)
pcie_device->slot = le16_to_cpu(pcie_device_pg0.Slot);
if (le32_to_cpu(pcie_device_pg0.Flags) &
MPI26_PCIEDEV0_FLAGS_ENCL_LEVEL_VALID) {
pcie_device->enclosure_level = pcie_device_pg0.EnclosureLevel;
memcpy(&pcie_device->connector_name[0],
&pcie_device_pg0.ConnectorName[0], 4);
} else {
pcie_device->enclosure_level = 0;
pcie_device->connector_name[0] = '\0';
}
/* get enclosure_logical_id */
if (pcie_device->enclosure_handle) {
enclosure_dev =
mpt3sas_scsih_enclosure_find_by_handle(ioc,
pcie_device->enclosure_handle);
if (enclosure_dev)
pcie_device->enclosure_logical_id =
le64_to_cpu(enclosure_dev->pg0.EnclosureLogicalID);
}
/* TODO -- Add device name once FW supports it */
if (!(mpt3sas_scsih_is_pcie_scsi_device(
le32_to_cpu(pcie_device_pg0.DeviceInfo)))) {
pcie_device->nvme_mdts =
le32_to_cpu(pcie_device_pg2.MaximumDataTransferSize);
pcie_device->shutdown_latency =
le16_to_cpu(pcie_device_pg2.ShutdownLatency);
/*
* Set IOC's max_shutdown_latency to drive's RTD3 Entry Latency
* if drive's RTD3 Entry Latency is greater then IOC's
* max_shutdown_latency.
*/
if (pcie_device->shutdown_latency > ioc->max_shutdown_latency)
ioc->max_shutdown_latency =
pcie_device->shutdown_latency;
if (pcie_device_pg2.ControllerResetTO)
pcie_device->reset_timeout =
pcie_device_pg2.ControllerResetTO;
else
pcie_device->reset_timeout = 30;
} else
pcie_device->reset_timeout = 30;
if (ioc->wait_for_discovery_to_complete)
_scsih_pcie_device_init_add(ioc, pcie_device);
else
_scsih_pcie_device_add(ioc, pcie_device);
pcie_device_put(pcie_device);
return 0;
}
/**
* _scsih_pcie_topology_change_event_debug - debug for topology
* event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_pcie_topology_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi26EventDataPCIeTopologyChangeList_t *event_data)
{
int i;
u16 handle;
u16 reason_code;
u8 port_number;
char *status_str = NULL;
u8 link_rate, prev_link_rate;
switch (event_data->SwitchStatus) {
case MPI26_EVENT_PCIE_TOPO_SS_ADDED:
status_str = "add";
break;
case MPI26_EVENT_PCIE_TOPO_SS_NOT_RESPONDING:
status_str = "remove";
break;
case MPI26_EVENT_PCIE_TOPO_SS_RESPONDING:
case 0:
status_str = "responding";
break;
case MPI26_EVENT_PCIE_TOPO_SS_DELAY_NOT_RESPONDING:
status_str = "remove delay";
break;
default:
status_str = "unknown status";
break;
}
ioc_info(ioc, "pcie topology change: (%s)\n", status_str);
pr_info("\tswitch_handle(0x%04x), enclosure_handle(0x%04x)"
"start_port(%02d), count(%d)\n",
le16_to_cpu(event_data->SwitchDevHandle),
le16_to_cpu(event_data->EnclosureHandle),
event_data->StartPortNum, event_data->NumEntries);
for (i = 0; i < event_data->NumEntries; i++) {
handle =
le16_to_cpu(event_data->PortEntry[i].AttachedDevHandle);
if (!handle)
continue;
port_number = event_data->StartPortNum + i;
reason_code = event_data->PortEntry[i].PortStatus;
switch (reason_code) {
case MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED:
status_str = "target add";
break;
case MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
status_str = "target remove";
break;
case MPI26_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING:
status_str = "delay target remove";
break;
case MPI26_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
status_str = "link rate change";
break;
case MPI26_EVENT_PCIE_TOPO_PS_NO_CHANGE:
status_str = "target responding";
break;
default:
status_str = "unknown";
break;
}
link_rate = event_data->PortEntry[i].CurrentPortInfo &
MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
prev_link_rate = event_data->PortEntry[i].PreviousPortInfo &
MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
pr_info("\tport(%02d), attached_handle(0x%04x): %s:"
" link rate: new(0x%02x), old(0x%02x)\n", port_number,
handle, status_str, link_rate, prev_link_rate);
}
}
/**
* _scsih_pcie_topology_change_event - handle PCIe topology
* changes
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*
*/
static void
_scsih_pcie_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
int i;
u16 handle;
u16 reason_code;
u8 link_rate, prev_link_rate;
unsigned long flags;
int rc;
Mpi26EventDataPCIeTopologyChangeList_t *event_data =
(Mpi26EventDataPCIeTopologyChangeList_t *) fw_event->event_data;
struct _pcie_device *pcie_device;
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_pcie_topology_change_event_debug(ioc, event_data);
if (ioc->shost_recovery || ioc->remove_host ||
ioc->pci_error_recovery)
return;
if (fw_event->ignore) {
dewtprintk(ioc, ioc_info(ioc, "ignoring switch event\n"));
return;
}
/* handle siblings events */
for (i = 0; i < event_data->NumEntries; i++) {
if (fw_event->ignore) {
dewtprintk(ioc,
ioc_info(ioc, "ignoring switch event\n"));
return;
}
if (ioc->remove_host || ioc->pci_error_recovery)
return;
reason_code = event_data->PortEntry[i].PortStatus;
handle =
le16_to_cpu(event_data->PortEntry[i].AttachedDevHandle);
if (!handle)
continue;
link_rate = event_data->PortEntry[i].CurrentPortInfo
& MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
prev_link_rate = event_data->PortEntry[i].PreviousPortInfo
& MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
switch (reason_code) {
case MPI26_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
if (ioc->shost_recovery)
break;
if (link_rate == prev_link_rate)
break;
if (link_rate < MPI26_EVENT_PCIE_TOPO_PI_RATE_2_5)
break;
_scsih_pcie_check_device(ioc, handle);
/* This code after this point handles the test case
* where a device has been added, however its returning
* BUSY for sometime. Then before the Device Missing
* Delay expires and the device becomes READY, the
* device is removed and added back.
*/
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
if (pcie_device) {
pcie_device_put(pcie_device);
break;
}
if (!test_bit(handle, ioc->pend_os_device_add))
break;
dewtprintk(ioc,
ioc_info(ioc, "handle(0x%04x) device not found: convert event to a device add\n",
handle));
event_data->PortEntry[i].PortStatus &= 0xF0;
event_data->PortEntry[i].PortStatus |=
MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED;
fallthrough;
case MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED:
if (ioc->shost_recovery)
break;
if (link_rate < MPI26_EVENT_PCIE_TOPO_PI_RATE_2_5)
break;
rc = _scsih_pcie_add_device(ioc, handle);
if (!rc) {
/* mark entry vacant */
/* TODO This needs to be reviewed and fixed,
* we dont have an entry
* to make an event void like vacant
*/
event_data->PortEntry[i].PortStatus |=
MPI26_EVENT_PCIE_TOPO_PS_NO_CHANGE;
}
break;
case MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
_scsih_pcie_device_remove_by_handle(ioc, handle);
break;
}
}
}
/**
* _scsih_pcie_device_status_change_event_debug - debug for device event
* @ioc: ?
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_pcie_device_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi26EventDataPCIeDeviceStatusChange_t *event_data)
{
char *reason_str = NULL;
switch (event_data->ReasonCode) {
case MPI26_EVENT_PCIDEV_STAT_RC_SMART_DATA:
reason_str = "smart data";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_UNSUPPORTED:
reason_str = "unsupported device discovered";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_INTERNAL_DEVICE_RESET:
reason_str = "internal device reset";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_TASK_ABORT_INTERNAL:
reason_str = "internal task abort";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
reason_str = "internal task abort set";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
reason_str = "internal clear task set";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_QUERY_TASK_INTERNAL:
reason_str = "internal query task";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_DEV_INIT_FAILURE:
reason_str = "device init failure";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
reason_str = "internal device reset complete";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
reason_str = "internal task abort complete";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_ASYNC_NOTIFICATION:
reason_str = "internal async notification";
break;
case MPI26_EVENT_PCIDEV_STAT_RC_PCIE_HOT_RESET_FAILED:
reason_str = "pcie hot reset failed";
break;
default:
reason_str = "unknown reason";
break;
}
ioc_info(ioc, "PCIE device status change: (%s)\n"
"\thandle(0x%04x), WWID(0x%016llx), tag(%d)",
reason_str, le16_to_cpu(event_data->DevHandle),
(u64)le64_to_cpu(event_data->WWID),
le16_to_cpu(event_data->TaskTag));
if (event_data->ReasonCode == MPI26_EVENT_PCIDEV_STAT_RC_SMART_DATA)
pr_cont(", ASC(0x%x), ASCQ(0x%x)\n",
event_data->ASC, event_data->ASCQ);
pr_cont("\n");
}
/**
* _scsih_pcie_device_status_change_event - handle device status
* change
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_pcie_device_status_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
struct MPT3SAS_TARGET *target_priv_data;
struct _pcie_device *pcie_device;
u64 wwid;
unsigned long flags;
Mpi26EventDataPCIeDeviceStatusChange_t *event_data =
(Mpi26EventDataPCIeDeviceStatusChange_t *)fw_event->event_data;
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_pcie_device_status_change_event_debug(ioc,
event_data);
if (event_data->ReasonCode !=
MPI26_EVENT_PCIDEV_STAT_RC_INTERNAL_DEVICE_RESET &&
event_data->ReasonCode !=
MPI26_EVENT_PCIDEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
return;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
wwid = le64_to_cpu(event_data->WWID);
pcie_device = __mpt3sas_get_pdev_by_wwid(ioc, wwid);
if (!pcie_device || !pcie_device->starget)
goto out;
target_priv_data = pcie_device->starget->hostdata;
if (!target_priv_data)
goto out;
if (event_data->ReasonCode ==
MPI26_EVENT_PCIDEV_STAT_RC_INTERNAL_DEVICE_RESET)
target_priv_data->tm_busy = 1;
else
target_priv_data->tm_busy = 0;
out:
if (pcie_device)
pcie_device_put(pcie_device);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
}
/**
* _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure
* event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataSasEnclDevStatusChange_t *event_data)
{
char *reason_str = NULL;
switch (event_data->ReasonCode) {
case MPI2_EVENT_SAS_ENCL_RC_ADDED:
reason_str = "enclosure add";
break;
case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
reason_str = "enclosure remove";
break;
default:
reason_str = "unknown reason";
break;
}
ioc_info(ioc, "enclosure status change: (%s)\n"
"\thandle(0x%04x), enclosure logical id(0x%016llx) number slots(%d)\n",
reason_str,
le16_to_cpu(event_data->EnclosureHandle),
(u64)le64_to_cpu(event_data->EnclosureLogicalID),
le16_to_cpu(event_data->StartSlot));
}
/**
* _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_enclosure_dev_status_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi2ConfigReply_t mpi_reply;
struct _enclosure_node *enclosure_dev = NULL;
Mpi2EventDataSasEnclDevStatusChange_t *event_data =
(Mpi2EventDataSasEnclDevStatusChange_t *)fw_event->event_data;
int rc;
u16 enclosure_handle = le16_to_cpu(event_data->EnclosureHandle);
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_enclosure_dev_status_change_event_debug(ioc,
(Mpi2EventDataSasEnclDevStatusChange_t *)
fw_event->event_data);
if (ioc->shost_recovery)
return;
if (enclosure_handle)
enclosure_dev =
mpt3sas_scsih_enclosure_find_by_handle(ioc,
enclosure_handle);
switch (event_data->ReasonCode) {
case MPI2_EVENT_SAS_ENCL_RC_ADDED:
if (!enclosure_dev) {
enclosure_dev =
kzalloc(sizeof(struct _enclosure_node),
GFP_KERNEL);
if (!enclosure_dev) {
ioc_info(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
rc = mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
&enclosure_dev->pg0,
MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
enclosure_handle);
if (rc || (le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK)) {
kfree(enclosure_dev);
return;
}
list_add_tail(&enclosure_dev->list,
&ioc->enclosure_list);
}
break;
case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
if (enclosure_dev) {
list_del(&enclosure_dev->list);
kfree(enclosure_dev);
}
break;
default:
break;
}
}
/**
* _scsih_sas_broadcast_primitive_event - handle broadcast events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
struct scsi_cmnd *scmd;
struct scsi_device *sdev;
struct scsiio_tracker *st;
u16 smid, handle;
u32 lun;
struct MPT3SAS_DEVICE *sas_device_priv_data;
u32 termination_count;
u32 query_count;
Mpi2SCSITaskManagementReply_t *mpi_reply;
Mpi2EventDataSasBroadcastPrimitive_t *event_data =
(Mpi2EventDataSasBroadcastPrimitive_t *)
fw_event->event_data;
u16 ioc_status;
unsigned long flags;
int r;
u8 max_retries = 0;
u8 task_abort_retries;
mutex_lock(&ioc->tm_cmds.mutex);
ioc_info(ioc, "%s: enter: phy number(%d), width(%d)\n",
__func__, event_data->PhyNum, event_data->PortWidth);
_scsih_block_io_all_device(ioc);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
mpi_reply = ioc->tm_cmds.reply;
broadcast_aen_retry:
/* sanity checks for retrying this loop */
if (max_retries++ == 5) {
dewtprintk(ioc, ioc_info(ioc, "%s: giving up\n", __func__));
goto out;
} else if (max_retries > 1)
dewtprintk(ioc,
ioc_info(ioc, "%s: %d retry\n",
__func__, max_retries - 1));
termination_count = 0;
query_count = 0;
for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
if (ioc->shost_recovery)
goto out;
scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
if (!scmd)
continue;
st = scsi_cmd_priv(scmd);
sdev = scmd->device;
sas_device_priv_data = sdev->hostdata;
if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
continue;
/* skip hidden raid components */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT)
continue;
/* skip volumes */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_VOLUME)
continue;
/* skip PCIe devices */
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_PCIE_DEVICE)
continue;
handle = sas_device_priv_data->sas_target->handle;
lun = sas_device_priv_data->lun;
query_count++;
if (ioc->shost_recovery)
goto out;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
r = mpt3sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, st->smid,
st->msix_io, 30, 0);
if (r == FAILED) {
sdev_printk(KERN_WARNING, sdev,
"mpt3sas_scsih_issue_tm: FAILED when sending "
"QUERY_TASK: scmd(%p)\n", scmd);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
goto broadcast_aen_retry;
}
ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
& MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
sdev_printk(KERN_WARNING, sdev,
"query task: FAILED with IOCSTATUS(0x%04x), scmd(%p)\n",
ioc_status, scmd);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
goto broadcast_aen_retry;
}
/* see if IO is still owned by IOC and target */
if (mpi_reply->ResponseCode ==
MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
mpi_reply->ResponseCode ==
MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC) {
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
continue;
}
task_abort_retries = 0;
tm_retry:
if (task_abort_retries++ == 60) {
dewtprintk(ioc,
ioc_info(ioc, "%s: ABORT_TASK: giving up\n",
__func__));
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
goto broadcast_aen_retry;
}
if (ioc->shost_recovery)
goto out_no_lock;
r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
st->smid, st->msix_io, 30, 0);
if (r == FAILED || st->cb_idx != 0xFF) {
sdev_printk(KERN_WARNING, sdev,
"mpt3sas_scsih_issue_tm: ABORT_TASK: FAILED : "
"scmd(%p)\n", scmd);
goto tm_retry;
}
if (task_abort_retries > 1)
sdev_printk(KERN_WARNING, sdev,
"mpt3sas_scsih_issue_tm: ABORT_TASK: RETRIES (%d):"
" scmd(%p)\n",
task_abort_retries - 1, scmd);
termination_count += le32_to_cpu(mpi_reply->TerminationCount);
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
}
if (ioc->broadcast_aen_pending) {
dewtprintk(ioc,
ioc_info(ioc,
"%s: loop back due to pending AEN\n",
__func__));
ioc->broadcast_aen_pending = 0;
goto broadcast_aen_retry;
}
out:
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
out_no_lock:
dewtprintk(ioc,
ioc_info(ioc, "%s - exit, query_count = %d termination_count = %d\n",
__func__, query_count, termination_count));
ioc->broadcast_aen_busy = 0;
if (!ioc->shost_recovery)
_scsih_ublock_io_all_device(ioc);
mutex_unlock(&ioc->tm_cmds.mutex);
}
/**
* _scsih_sas_discovery_event - handle discovery events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_discovery_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi2EventDataSasDiscovery_t *event_data =
(Mpi2EventDataSasDiscovery_t *) fw_event->event_data;
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
ioc_info(ioc, "discovery event: (%s)",
event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED ?
"start" : "stop");
if (event_data->DiscoveryStatus)
pr_cont("discovery_status(0x%08x)",
le32_to_cpu(event_data->DiscoveryStatus));
pr_cont("\n");
}
if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
!ioc->sas_hba.num_phys) {
if (disable_discovery > 0 && ioc->shost_recovery) {
/* Wait for the reset to complete */
while (ioc->shost_recovery)
ssleep(1);
}
_scsih_sas_host_add(ioc);
}
}
/**
* _scsih_sas_device_discovery_error_event - display SAS device discovery error
* events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_device_discovery_error_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi25EventDataSasDeviceDiscoveryError_t *event_data =
(Mpi25EventDataSasDeviceDiscoveryError_t *)fw_event->event_data;
switch (event_data->ReasonCode) {
case MPI25_EVENT_SAS_DISC_ERR_SMP_FAILED:
ioc_warn(ioc, "SMP command sent to the expander (handle:0x%04x, sas_address:0x%016llx, physical_port:0x%02x) has failed\n",
le16_to_cpu(event_data->DevHandle),
(u64)le64_to_cpu(event_data->SASAddress),
event_data->PhysicalPort);
break;
case MPI25_EVENT_SAS_DISC_ERR_SMP_TIMEOUT:
ioc_warn(ioc, "SMP command sent to the expander (handle:0x%04x, sas_address:0x%016llx, physical_port:0x%02x) has timed out\n",
le16_to_cpu(event_data->DevHandle),
(u64)le64_to_cpu(event_data->SASAddress),
event_data->PhysicalPort);
break;
default:
break;
}
}
/**
* _scsih_pcie_enumeration_event - handle enumeration events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_pcie_enumeration_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi26EventDataPCIeEnumeration_t *event_data =
(Mpi26EventDataPCIeEnumeration_t *)fw_event->event_data;
if (!(ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK))
return;
ioc_info(ioc, "pcie enumeration event: (%s) Flag 0x%02x",
(event_data->ReasonCode == MPI26_EVENT_PCIE_ENUM_RC_STARTED) ?
"started" : "completed",
event_data->Flags);
if (event_data->EnumerationStatus)
pr_cont("enumeration_status(0x%08x)",
le32_to_cpu(event_data->EnumerationStatus));
pr_cont("\n");
}
/**
* _scsih_ir_fastpath - turn on fastpath for IR physdisk
* @ioc: per adapter object
* @handle: device handle for physical disk
* @phys_disk_num: physical disk number
*
* Return: 0 for success, else failure.
*/
static int
_scsih_ir_fastpath(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phys_disk_num)
{
Mpi2RaidActionRequest_t *mpi_request;
Mpi2RaidActionReply_t *mpi_reply;
u16 smid;
u8 issue_reset = 0;
int rc = 0;
u16 ioc_status;
u32 log_info;
if (ioc->hba_mpi_version_belonged == MPI2_VERSION)
return rc;
mutex_lock(&ioc->scsih_cmds.mutex);
if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
ioc_err(ioc, "%s: scsih_cmd in use\n", __func__);
rc = -EAGAIN;
goto out;
}
ioc->scsih_cmds.status = MPT3_CMD_PENDING;
smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
if (!smid) {
ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
rc = -EAGAIN;
goto out;
}
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
ioc->scsih_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
mpi_request->Action = MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
mpi_request->PhysDiskNum = phys_disk_num;
dewtprintk(ioc,
ioc_info(ioc, "IR RAID_ACTION: turning fast path on for handle(0x%04x), phys_disk_num (0x%02x)\n",
handle, phys_disk_num));
init_completion(&ioc->scsih_cmds.done);
ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
mpt3sas_check_cmd_timeout(ioc,
ioc->scsih_cmds.status, mpi_request,
sizeof(Mpi2RaidActionRequest_t)/4, issue_reset);
rc = -EFAULT;
goto out;
}
if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
mpi_reply = ioc->scsih_cmds.reply;
ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
else
log_info = 0;
ioc_status &= MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
dewtprintk(ioc,
ioc_info(ioc, "IR RAID_ACTION: failed: ioc_status(0x%04x), loginfo(0x%08x)!!!\n",
ioc_status, log_info));
rc = -EFAULT;
} else
dewtprintk(ioc,
ioc_info(ioc, "IR RAID_ACTION: completed successfully\n"));
}
out:
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
mutex_unlock(&ioc->scsih_cmds.mutex);
if (issue_reset)
mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
return rc;
}
/**
* _scsih_reprobe_lun - reprobing lun
* @sdev: scsi device struct
* @no_uld_attach: sdev->no_uld_attach flag setting
*
**/
static void
_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
{
sdev->no_uld_attach = no_uld_attach ? 1 : 0;
sdev_printk(KERN_INFO, sdev, "%s raid component\n",
sdev->no_uld_attach ? "hiding" : "exposing");
WARN_ON(scsi_device_reprobe(sdev));
}
/**
* _scsih_sas_volume_add - add new volume
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*/
static void
_scsih_sas_volume_add(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _raid_device *raid_device;
unsigned long flags;
u64 wwid;
u16 handle = le16_to_cpu(element->VolDevHandle);
int rc;
mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
if (!wwid) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (raid_device)
return;
raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
if (!raid_device) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
raid_device->id = ioc->sas_id++;
raid_device->channel = RAID_CHANNEL;
raid_device->handle = handle;
raid_device->wwid = wwid;
_scsih_raid_device_add(ioc, raid_device);
if (!ioc->wait_for_discovery_to_complete) {
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
} else {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
_scsih_determine_boot_device(ioc, raid_device, 1);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
}
/**
* _scsih_sas_volume_delete - delete volume
* @ioc: per adapter object
* @handle: volume device handle
* Context: user.
*/
static void
_scsih_sas_volume_delete(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _raid_device *raid_device;
unsigned long flags;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct scsi_target *starget = NULL;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = mpt3sas_raid_device_find_by_handle(ioc, handle);
if (raid_device) {
if (raid_device->starget) {
starget = raid_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->deleted = 1;
}
ioc_info(ioc, "removing handle(0x%04x), wwid(0x%016llx)\n",
raid_device->handle, (u64)raid_device->wwid);
list_del(&raid_device->list);
kfree(raid_device);
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (starget)
scsi_remove_target(&starget->dev);
}
/**
* _scsih_sas_pd_expose - expose pd component to /dev/sdX
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*/
static void
_scsih_sas_pd_expose(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
struct scsi_target *starget = NULL;
struct MPT3SAS_TARGET *sas_target_priv_data;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
sas_device->volume_handle = 0;
sas_device->volume_wwid = 0;
clear_bit(handle, ioc->pd_handles);
if (sas_device->starget && sas_device->starget->hostdata) {
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->flags &=
~MPT_TARGET_FLAGS_RAID_COMPONENT;
}
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
/* exposing raid component */
if (starget)
starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
sas_device_put(sas_device);
}
/**
* _scsih_sas_pd_hide - hide pd component from /dev/sdX
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*/
static void
_scsih_sas_pd_hide(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
struct scsi_target *starget = NULL;
struct MPT3SAS_TARGET *sas_target_priv_data;
unsigned long flags;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
u16 volume_handle = 0;
u64 volume_wwid = 0;
mpt3sas_config_get_volume_handle(ioc, handle, &volume_handle);
if (volume_handle)
mpt3sas_config_get_volume_wwid(ioc, volume_handle,
&volume_wwid);
spin_lock_irqsave(&ioc->sas_device_lock, flags);
sas_device = __mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
set_bit(handle, ioc->pd_handles);
if (sas_device->starget && sas_device->starget->hostdata) {
starget = sas_device->starget;
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->flags |=
MPT_TARGET_FLAGS_RAID_COMPONENT;
sas_device->volume_handle = volume_handle;
sas_device->volume_wwid = volume_wwid;
}
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (!sas_device)
return;
/* hiding raid component */
_scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
if (starget)
starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
sas_device_put(sas_device);
}
/**
* _scsih_sas_pd_delete - delete pd component
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*/
static void
_scsih_sas_pd_delete(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
_scsih_device_remove_by_handle(ioc, handle);
}
/**
* _scsih_sas_pd_add - remove pd component
* @ioc: per adapter object
* @element: IR config element data
* Context: user.
*/
static void
_scsih_sas_pd_add(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventIrConfigElement_t *element)
{
struct _sas_device *sas_device;
u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
u64 sas_address;
u16 parent_handle;
set_bit(handle, ioc->pd_handles);
sas_device = mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
_scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
sas_device_put(sas_device);
return;
}
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
mpt3sas_transport_update_links(ioc, sas_address, handle,
sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5,
mpt3sas_get_port_by_id(ioc,
sas_device_pg0.PhysicalPort, 0));
_scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
_scsih_add_device(ioc, handle, 0, 1);
}
/**
* _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_sas_ir_config_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataIrConfigChangeList_t *event_data)
{
Mpi2EventIrConfigElement_t *element;
u8 element_type;
int i;
char *reason_str = NULL, *element_str = NULL;
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
ioc_info(ioc, "raid config change: (%s), elements(%d)\n",
le32_to_cpu(event_data->Flags) & MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG ?
"foreign" : "native",
event_data->NumElements);
for (i = 0; i < event_data->NumElements; i++, element++) {
switch (element->ReasonCode) {
case MPI2_EVENT_IR_CHANGE_RC_ADDED:
reason_str = "add";
break;
case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
reason_str = "remove";
break;
case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
reason_str = "no change";
break;
case MPI2_EVENT_IR_CHANGE_RC_HIDE:
reason_str = "hide";
break;
case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
reason_str = "unhide";
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
reason_str = "volume_created";
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
reason_str = "volume_deleted";
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
reason_str = "pd_created";
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
reason_str = "pd_deleted";
break;
default:
reason_str = "unknown reason";
break;
}
element_type = le16_to_cpu(element->ElementFlags) &
MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
switch (element_type) {
case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
element_str = "volume";
break;
case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
element_str = "phys disk";
break;
case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
element_str = "hot spare";
break;
default:
element_str = "unknown element";
break;
}
pr_info("\t(%s:%s), vol handle(0x%04x), " \
"pd handle(0x%04x), pd num(0x%02x)\n", element_str,
reason_str, le16_to_cpu(element->VolDevHandle),
le16_to_cpu(element->PhysDiskDevHandle),
element->PhysDiskNum);
}
}
/**
* _scsih_sas_ir_config_change_event - handle ir configuration change events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_ir_config_change_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi2EventIrConfigElement_t *element;
int i;
u8 foreign_config;
Mpi2EventDataIrConfigChangeList_t *event_data =
(Mpi2EventDataIrConfigChangeList_t *)
fw_event->event_data;
if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) &&
(!ioc->hide_ir_msg))
_scsih_sas_ir_config_change_event_debug(ioc, event_data);
foreign_config = (le32_to_cpu(event_data->Flags) &
MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
if (ioc->shost_recovery &&
ioc->hba_mpi_version_belonged != MPI2_VERSION) {
for (i = 0; i < event_data->NumElements; i++, element++) {
if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_HIDE)
_scsih_ir_fastpath(ioc,
le16_to_cpu(element->PhysDiskDevHandle),
element->PhysDiskNum);
}
return;
}
for (i = 0; i < event_data->NumElements; i++, element++) {
switch (element->ReasonCode) {
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
case MPI2_EVENT_IR_CHANGE_RC_ADDED:
if (!foreign_config)
_scsih_sas_volume_add(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
if (!foreign_config)
_scsih_sas_volume_delete(ioc,
le16_to_cpu(element->VolDevHandle));
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
if (!ioc->is_warpdrive)
_scsih_sas_pd_hide(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
if (!ioc->is_warpdrive)
_scsih_sas_pd_expose(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_HIDE:
if (!ioc->is_warpdrive)
_scsih_sas_pd_add(ioc, element);
break;
case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
if (!ioc->is_warpdrive)
_scsih_sas_pd_delete(ioc, element);
break;
}
}
}
/**
* _scsih_sas_ir_volume_event - IR volume event
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_ir_volume_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
u64 wwid;
unsigned long flags;
struct _raid_device *raid_device;
u16 handle;
u32 state;
int rc;
Mpi2EventDataIrVolume_t *event_data =
(Mpi2EventDataIrVolume_t *) fw_event->event_data;
if (ioc->shost_recovery)
return;
if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
return;
handle = le16_to_cpu(event_data->VolDevHandle);
state = le32_to_cpu(event_data->NewValue);
if (!ioc->hide_ir_msg)
dewtprintk(ioc,
ioc_info(ioc, "%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
__func__, handle,
le32_to_cpu(event_data->PreviousValue),
state));
switch (state) {
case MPI2_RAID_VOL_STATE_MISSING:
case MPI2_RAID_VOL_STATE_FAILED:
_scsih_sas_volume_delete(ioc, handle);
break;
case MPI2_RAID_VOL_STATE_ONLINE:
case MPI2_RAID_VOL_STATE_DEGRADED:
case MPI2_RAID_VOL_STATE_OPTIMAL:
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = mpt3sas_raid_device_find_by_handle(ioc, handle);
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (raid_device)
break;
mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
if (!wwid) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
break;
}
raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
if (!raid_device) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
break;
}
raid_device->id = ioc->sas_id++;
raid_device->channel = RAID_CHANNEL;
raid_device->handle = handle;
raid_device->wwid = wwid;
_scsih_raid_device_add(ioc, raid_device);
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
break;
case MPI2_RAID_VOL_STATE_INITIALIZING:
default:
break;
}
}
/**
* _scsih_sas_ir_physical_disk_event - PD event
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_ir_physical_disk_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
u16 handle, parent_handle;
u32 state;
struct _sas_device *sas_device;
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u32 ioc_status;
Mpi2EventDataIrPhysicalDisk_t *event_data =
(Mpi2EventDataIrPhysicalDisk_t *) fw_event->event_data;
u64 sas_address;
if (ioc->shost_recovery)
return;
if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
return;
handle = le16_to_cpu(event_data->PhysDiskDevHandle);
state = le32_to_cpu(event_data->NewValue);
if (!ioc->hide_ir_msg)
dewtprintk(ioc,
ioc_info(ioc, "%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
__func__, handle,
le32_to_cpu(event_data->PreviousValue),
state));
switch (state) {
case MPI2_RAID_PD_STATE_ONLINE:
case MPI2_RAID_PD_STATE_DEGRADED:
case MPI2_RAID_PD_STATE_REBUILDING:
case MPI2_RAID_PD_STATE_OPTIMAL:
case MPI2_RAID_PD_STATE_HOT_SPARE:
if (!ioc->is_warpdrive)
set_bit(handle, ioc->pd_handles);
sas_device = mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
sas_device_put(sas_device);
return;
}
if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
mpt3sas_transport_update_links(ioc, sas_address, handle,
sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5,
mpt3sas_get_port_by_id(ioc,
sas_device_pg0.PhysicalPort, 0));
_scsih_add_device(ioc, handle, 0, 1);
break;
case MPI2_RAID_PD_STATE_OFFLINE:
case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
default:
break;
}
}
/**
* _scsih_sas_ir_operation_status_event_debug - debug for IR op event
* @ioc: per adapter object
* @event_data: event data payload
* Context: user.
*/
static void
_scsih_sas_ir_operation_status_event_debug(struct MPT3SAS_ADAPTER *ioc,
Mpi2EventDataIrOperationStatus_t *event_data)
{
char *reason_str = NULL;
switch (event_data->RAIDOperation) {
case MPI2_EVENT_IR_RAIDOP_RESYNC:
reason_str = "resync";
break;
case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
reason_str = "online capacity expansion";
break;
case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
reason_str = "consistency check";
break;
case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
reason_str = "background init";
break;
case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
reason_str = "make data consistent";
break;
}
if (!reason_str)
return;
ioc_info(ioc, "raid operational status: (%s)\thandle(0x%04x), percent complete(%d)\n",
reason_str,
le16_to_cpu(event_data->VolDevHandle),
event_data->PercentComplete);
}
/**
* _scsih_sas_ir_operation_status_event - handle RAID operation events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_scsih_sas_ir_operation_status_event(struct MPT3SAS_ADAPTER *ioc,
struct fw_event_work *fw_event)
{
Mpi2EventDataIrOperationStatus_t *event_data =
(Mpi2EventDataIrOperationStatus_t *)
fw_event->event_data;
static struct _raid_device *raid_device;
unsigned long flags;
u16 handle;
if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) &&
(!ioc->hide_ir_msg))
_scsih_sas_ir_operation_status_event_debug(ioc,
event_data);
/* code added for raid transport support */
if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
spin_lock_irqsave(&ioc->raid_device_lock, flags);
handle = le16_to_cpu(event_data->VolDevHandle);
raid_device = mpt3sas_raid_device_find_by_handle(ioc, handle);
if (raid_device)
raid_device->percent_complete =
event_data->PercentComplete;
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
}
/**
* _scsih_prep_device_scan - initialize parameters prior to device scan
* @ioc: per adapter object
*
* Set the deleted flag prior to device scan. If the device is found during
* the scan, then we clear the deleted flag.
*/
static void
_scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct scsi_device *sdev;
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (sas_device_priv_data && sas_device_priv_data->sas_target)
sas_device_priv_data->sas_target->deleted = 1;
}
}
/**
* _scsih_update_device_qdepth - Update QD during Reset.
* @ioc: per adapter object
*
*/
static void
_scsih_update_device_qdepth(struct MPT3SAS_ADAPTER *ioc)
{
struct MPT3SAS_DEVICE *sas_device_priv_data;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _sas_device *sas_device;
struct scsi_device *sdev;
u16 qdepth;
ioc_info(ioc, "Update devices with firmware reported queue depth\n");
shost_for_each_device(sdev, ioc->shost) {
sas_device_priv_data = sdev->hostdata;
if (sas_device_priv_data && sas_device_priv_data->sas_target) {
sas_target_priv_data = sas_device_priv_data->sas_target;
sas_device = sas_device_priv_data->sas_target->sas_dev;
if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_PCIE_DEVICE)
qdepth = ioc->max_nvme_qd;
else if (sas_device &&
sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET)
qdepth = (sas_device->port_type > 1) ?
ioc->max_wideport_qd : ioc->max_narrowport_qd;
else if (sas_device &&
sas_device->device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
qdepth = ioc->max_sata_qd;
else
continue;
mpt3sas_scsih_change_queue_depth(sdev, qdepth);
}
}
}
/**
* _scsih_mark_responding_sas_device - mark a sas_devices as responding
* @ioc: per adapter object
* @sas_device_pg0: SAS Device page 0
*
* After host reset, find out whether devices are still responding.
* Used in _scsih_remove_unresponsive_sas_devices.
*/
static void
_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc,
Mpi2SasDevicePage0_t *sas_device_pg0)
{
struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
struct scsi_target *starget;
struct _sas_device *sas_device = NULL;
struct _enclosure_node *enclosure_dev = NULL;
unsigned long flags;
struct hba_port *port = mpt3sas_get_port_by_id(
ioc, sas_device_pg0->PhysicalPort, 0);
if (sas_device_pg0->EnclosureHandle) {
enclosure_dev =
mpt3sas_scsih_enclosure_find_by_handle(ioc,
le16_to_cpu(sas_device_pg0->EnclosureHandle));
if (enclosure_dev == NULL)
ioc_info(ioc, "Enclosure handle(0x%04x) doesn't match with enclosure device!\n",
sas_device_pg0->EnclosureHandle);
}
spin_lock_irqsave(&ioc->sas_device_lock, flags);
list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
if (sas_device->sas_address != le64_to_cpu(
sas_device_pg0->SASAddress))
continue;
if (sas_device->slot != le16_to_cpu(sas_device_pg0->Slot))
continue;
if (sas_device->port != port)
continue;
sas_device->responding = 1;
starget = sas_device->starget;
if (starget && starget->hostdata) {
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->tm_busy = 0;
sas_target_priv_data->deleted = 0;
} else
sas_target_priv_data = NULL;
if (starget) {
starget_printk(KERN_INFO, starget,
"handle(0x%04x), sas_addr(0x%016llx)\n",
le16_to_cpu(sas_device_pg0->DevHandle),
(unsigned long long)
sas_device->sas_address);
if (sas_device->enclosure_handle != 0)
starget_printk(KERN_INFO, starget,
"enclosure logical id(0x%016llx), slot(%d)\n",
(unsigned long long)
sas_device->enclosure_logical_id,
sas_device->slot);
}
if (le16_to_cpu(sas_device_pg0->Flags) &
MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
sas_device->enclosure_level =
sas_device_pg0->EnclosureLevel;
memcpy(&sas_device->connector_name[0],
&sas_device_pg0->ConnectorName[0], 4);
} else {
sas_device->enclosure_level = 0;
sas_device->connector_name[0] = '\0';
}
sas_device->enclosure_handle =
le16_to_cpu(sas_device_pg0->EnclosureHandle);
sas_device->is_chassis_slot_valid = 0;
if (enclosure_dev) {
sas_device->enclosure_logical_id = le64_to_cpu(
enclosure_dev->pg0.EnclosureLogicalID);
if (le16_to_cpu(enclosure_dev->pg0.Flags) &
MPI2_SAS_ENCLS0_FLAGS_CHASSIS_SLOT_VALID) {
sas_device->is_chassis_slot_valid = 1;
sas_device->chassis_slot =
enclosure_dev->pg0.ChassisSlot;
}
}
if (sas_device->handle == le16_to_cpu(
sas_device_pg0->DevHandle))
goto out;
pr_info("\thandle changed from(0x%04x)!!!\n",
sas_device->handle);
sas_device->handle = le16_to_cpu(
sas_device_pg0->DevHandle);
if (sas_target_priv_data)
sas_target_priv_data->handle =
le16_to_cpu(sas_device_pg0->DevHandle);
goto out;
}
out:
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_create_enclosure_list_after_reset - Free Existing list,
* And create enclosure list by scanning all Enclosure Page(0)s
* @ioc: per adapter object
*/
static void
_scsih_create_enclosure_list_after_reset(struct MPT3SAS_ADAPTER *ioc)
{
struct _enclosure_node *enclosure_dev;
Mpi2ConfigReply_t mpi_reply;
u16 enclosure_handle;
int rc;
/* Free existing enclosure list */
mpt3sas_free_enclosure_list(ioc);
/* Re constructing enclosure list after reset*/
enclosure_handle = 0xFFFF;
do {
enclosure_dev =
kzalloc(sizeof(struct _enclosure_node), GFP_KERNEL);
if (!enclosure_dev) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
rc = mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
&enclosure_dev->pg0,
MPI2_SAS_ENCLOS_PGAD_FORM_GET_NEXT_HANDLE,
enclosure_handle);
if (rc || (le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK)) {
kfree(enclosure_dev);
return;
}
list_add_tail(&enclosure_dev->list,
&ioc->enclosure_list);
enclosure_handle =
le16_to_cpu(enclosure_dev->pg0.EnclosureHandle);
} while (1);
}
/**
* _scsih_search_responding_sas_devices -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*/
static void
_scsih_search_responding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u16 handle;
u32 device_info;
ioc_info(ioc, "search for end-devices: start\n");
if (list_empty(&ioc->sas_device_list))
goto out;
handle = 0xFFFF;
while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
break;
handle = le16_to_cpu(sas_device_pg0.DevHandle);
device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
if (!(_scsih_is_end_device(device_info)))
continue;
_scsih_mark_responding_sas_device(ioc, &sas_device_pg0);
}
out:
ioc_info(ioc, "search for end-devices: complete\n");
}
/**
* _scsih_mark_responding_pcie_device - mark a pcie_device as responding
* @ioc: per adapter object
* @pcie_device_pg0: PCIe Device page 0
*
* After host reset, find out whether devices are still responding.
* Used in _scsih_remove_unresponding_devices.
*/
static void
_scsih_mark_responding_pcie_device(struct MPT3SAS_ADAPTER *ioc,
Mpi26PCIeDevicePage0_t *pcie_device_pg0)
{
struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
struct scsi_target *starget;
struct _pcie_device *pcie_device;
unsigned long flags;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
list_for_each_entry(pcie_device, &ioc->pcie_device_list, list) {
if ((pcie_device->wwid == le64_to_cpu(pcie_device_pg0->WWID))
&& (pcie_device->slot == le16_to_cpu(
pcie_device_pg0->Slot))) {
pcie_device->access_status =
pcie_device_pg0->AccessStatus;
pcie_device->responding = 1;
starget = pcie_device->starget;
if (starget && starget->hostdata) {
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->tm_busy = 0;
sas_target_priv_data->deleted = 0;
} else
sas_target_priv_data = NULL;
if (starget) {
starget_printk(KERN_INFO, starget,
"handle(0x%04x), wwid(0x%016llx) ",
pcie_device->handle,
(unsigned long long)pcie_device->wwid);
if (pcie_device->enclosure_handle != 0)
starget_printk(KERN_INFO, starget,
"enclosure logical id(0x%016llx), "
"slot(%d)\n",
(unsigned long long)
pcie_device->enclosure_logical_id,
pcie_device->slot);
}
if (((le32_to_cpu(pcie_device_pg0->Flags)) &
MPI26_PCIEDEV0_FLAGS_ENCL_LEVEL_VALID) &&
(ioc->hba_mpi_version_belonged != MPI2_VERSION)) {
pcie_device->enclosure_level =
pcie_device_pg0->EnclosureLevel;
memcpy(&pcie_device->connector_name[0],
&pcie_device_pg0->ConnectorName[0], 4);
} else {
pcie_device->enclosure_level = 0;
pcie_device->connector_name[0] = '\0';
}
if (pcie_device->handle == le16_to_cpu(
pcie_device_pg0->DevHandle))
goto out;
pr_info("\thandle changed from(0x%04x)!!!\n",
pcie_device->handle);
pcie_device->handle = le16_to_cpu(
pcie_device_pg0->DevHandle);
if (sas_target_priv_data)
sas_target_priv_data->handle =
le16_to_cpu(pcie_device_pg0->DevHandle);
goto out;
}
}
out:
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
}
/**
* _scsih_search_responding_pcie_devices -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*/
static void
_scsih_search_responding_pcie_devices(struct MPT3SAS_ADAPTER *ioc)
{
Mpi26PCIeDevicePage0_t pcie_device_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u16 handle;
u32 device_info;
ioc_info(ioc, "search for end-devices: start\n");
if (list_empty(&ioc->pcie_device_list))
goto out;
handle = 0xFFFF;
while (!(mpt3sas_config_get_pcie_device_pg0(ioc, &mpi_reply,
&pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from %s: ioc_status(0x%04x), loginfo(0x%08x)\n",
__func__, ioc_status,
le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(pcie_device_pg0.DevHandle);
device_info = le32_to_cpu(pcie_device_pg0.DeviceInfo);
if (!(_scsih_is_nvme_pciescsi_device(device_info)))
continue;
_scsih_mark_responding_pcie_device(ioc, &pcie_device_pg0);
}
out:
ioc_info(ioc, "search for PCIe end-devices: complete\n");
}
/**
* _scsih_mark_responding_raid_device - mark a raid_device as responding
* @ioc: per adapter object
* @wwid: world wide identifier for raid volume
* @handle: device handle
*
* After host reset, find out whether devices are still responding.
* Used in _scsih_remove_unresponsive_raid_devices.
*/
static void
_scsih_mark_responding_raid_device(struct MPT3SAS_ADAPTER *ioc, u64 wwid,
u16 handle)
{
struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
struct scsi_target *starget;
struct _raid_device *raid_device;
unsigned long flags;
spin_lock_irqsave(&ioc->raid_device_lock, flags);
list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
if (raid_device->wwid == wwid && raid_device->starget) {
starget = raid_device->starget;
if (starget && starget->hostdata) {
sas_target_priv_data = starget->hostdata;
sas_target_priv_data->deleted = 0;
} else
sas_target_priv_data = NULL;
raid_device->responding = 1;
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
starget_printk(KERN_INFO, raid_device->starget,
"handle(0x%04x), wwid(0x%016llx)\n", handle,
(unsigned long long)raid_device->wwid);
/*
* WARPDRIVE: The handles of the PDs might have changed
* across the host reset so re-initialize the
* required data for Direct IO
*/
mpt3sas_init_warpdrive_properties(ioc, raid_device);
spin_lock_irqsave(&ioc->raid_device_lock, flags);
if (raid_device->handle == handle) {
spin_unlock_irqrestore(&ioc->raid_device_lock,
flags);
return;
}
pr_info("\thandle changed from(0x%04x)!!!\n",
raid_device->handle);
raid_device->handle = handle;
if (sas_target_priv_data)
sas_target_priv_data->handle = handle;
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
return;
}
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
}
/**
* _scsih_search_responding_raid_devices -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*/
static void
_scsih_search_responding_raid_devices(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2RaidVolPage1_t volume_pg1;
Mpi2RaidVolPage0_t volume_pg0;
Mpi2RaidPhysDiskPage0_t pd_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u16 handle;
u8 phys_disk_num;
if (!ioc->ir_firmware)
return;
ioc_info(ioc, "search for raid volumes: start\n");
if (list_empty(&ioc->raid_device_list))
goto out;
handle = 0xFFFF;
while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
&volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
break;
handle = le16_to_cpu(volume_pg1.DevHandle);
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
&volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t)))
continue;
if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
_scsih_mark_responding_raid_device(ioc,
le64_to_cpu(volume_pg1.WWID), handle);
}
/* refresh the pd_handles */
if (!ioc->is_warpdrive) {
phys_disk_num = 0xFF;
memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
&pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
phys_disk_num))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
break;
phys_disk_num = pd_pg0.PhysDiskNum;
handle = le16_to_cpu(pd_pg0.DevHandle);
set_bit(handle, ioc->pd_handles);
}
}
out:
ioc_info(ioc, "search for responding raid volumes: complete\n");
}
/**
* _scsih_mark_responding_expander - mark a expander as responding
* @ioc: per adapter object
* @expander_pg0:SAS Expander Config Page0
*
* After host reset, find out whether devices are still responding.
* Used in _scsih_remove_unresponsive_expanders.
*/
static void
_scsih_mark_responding_expander(struct MPT3SAS_ADAPTER *ioc,
Mpi2ExpanderPage0_t *expander_pg0)
{
struct _sas_node *sas_expander = NULL;
unsigned long flags;
int i;
struct _enclosure_node *enclosure_dev = NULL;
u16 handle = le16_to_cpu(expander_pg0->DevHandle);
u16 enclosure_handle = le16_to_cpu(expander_pg0->EnclosureHandle);
u64 sas_address = le64_to_cpu(expander_pg0->SASAddress);
struct hba_port *port = mpt3sas_get_port_by_id(
ioc, expander_pg0->PhysicalPort, 0);
if (enclosure_handle)
enclosure_dev =
mpt3sas_scsih_enclosure_find_by_handle(ioc,
enclosure_handle);
spin_lock_irqsave(&ioc->sas_node_lock, flags);
list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
if (sas_expander->sas_address != sas_address)
continue;
if (sas_expander->port != port)
continue;
sas_expander->responding = 1;
if (enclosure_dev) {
sas_expander->enclosure_logical_id =
le64_to_cpu(enclosure_dev->pg0.EnclosureLogicalID);
sas_expander->enclosure_handle =
le16_to_cpu(expander_pg0->EnclosureHandle);
}
if (sas_expander->handle == handle)
goto out;
pr_info("\texpander(0x%016llx): handle changed" \
" from(0x%04x) to (0x%04x)!!!\n",
(unsigned long long)sas_expander->sas_address,
sas_expander->handle, handle);
sas_expander->handle = handle;
for (i = 0 ; i < sas_expander->num_phys ; i++)
sas_expander->phy[i].handle = handle;
goto out;
}
out:
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
}
/**
* _scsih_search_responding_expanders -
* @ioc: per adapter object
*
* After host reset, find out whether devices are still responding.
* If not remove.
*/
static void
_scsih_search_responding_expanders(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2ExpanderPage0_t expander_pg0;
Mpi2ConfigReply_t mpi_reply;
u16 ioc_status;
u64 sas_address;
u16 handle;
u8 port;
ioc_info(ioc, "search for expanders: start\n");
if (list_empty(&ioc->sas_expander_list))
goto out;
handle = 0xFFFF;
while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
break;
handle = le16_to_cpu(expander_pg0.DevHandle);
sas_address = le64_to_cpu(expander_pg0.SASAddress);
port = expander_pg0.PhysicalPort;
pr_info(
"\texpander present: handle(0x%04x), sas_addr(0x%016llx), port:%d\n",
handle, (unsigned long long)sas_address,
(ioc->multipath_on_hba ?
port : MULTIPATH_DISABLED_PORT_ID));
_scsih_mark_responding_expander(ioc, &expander_pg0);
}
out:
ioc_info(ioc, "search for expanders: complete\n");
}
/**
* _scsih_remove_unresponding_devices - removing unresponding devices
* @ioc: per adapter object
*/
static void
_scsih_remove_unresponding_devices(struct MPT3SAS_ADAPTER *ioc)
{
struct _sas_device *sas_device, *sas_device_next;
struct _sas_node *sas_expander, *sas_expander_next;
struct _raid_device *raid_device, *raid_device_next;
struct _pcie_device *pcie_device, *pcie_device_next;
struct list_head tmp_list;
unsigned long flags;
LIST_HEAD(head);
ioc_info(ioc, "removing unresponding devices: start\n");
/* removing unresponding end devices */
ioc_info(ioc, "removing unresponding devices: end-devices\n");
/*
* Iterate, pulling off devices marked as non-responding. We become the
* owner for the reference the list had on any object we prune.
*/
spin_lock_irqsave(&ioc->sas_device_lock, flags);
/*
* Clean up the sas_device_init_list list as
* driver goes for fresh scan as part of diag reset.
*/
list_for_each_entry_safe(sas_device, sas_device_next,
&ioc->sas_device_init_list, list) {
list_del_init(&sas_device->list);
sas_device_put(sas_device);
}
list_for_each_entry_safe(sas_device, sas_device_next,
&ioc->sas_device_list, list) {
if (!sas_device->responding)
list_move_tail(&sas_device->list, &head);
else
sas_device->responding = 0;
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
/*
* Now, uninitialize and remove the unresponding devices we pruned.
*/
list_for_each_entry_safe(sas_device, sas_device_next, &head, list) {
_scsih_remove_device(ioc, sas_device);
list_del_init(&sas_device->list);
sas_device_put(sas_device);
}
ioc_info(ioc, "Removing unresponding devices: pcie end-devices\n");
INIT_LIST_HEAD(&head);
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
/*
* Clean up the pcie_device_init_list list as
* driver goes for fresh scan as part of diag reset.
*/
list_for_each_entry_safe(pcie_device, pcie_device_next,
&ioc->pcie_device_init_list, list) {
list_del_init(&pcie_device->list);
pcie_device_put(pcie_device);
}
list_for_each_entry_safe(pcie_device, pcie_device_next,
&ioc->pcie_device_list, list) {
if (!pcie_device->responding)
list_move_tail(&pcie_device->list, &head);
else
pcie_device->responding = 0;
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
list_for_each_entry_safe(pcie_device, pcie_device_next, &head, list) {
_scsih_pcie_device_remove_from_sml(ioc, pcie_device);
list_del_init(&pcie_device->list);
pcie_device_put(pcie_device);
}
/* removing unresponding volumes */
if (ioc->ir_firmware) {
ioc_info(ioc, "removing unresponding devices: volumes\n");
list_for_each_entry_safe(raid_device, raid_device_next,
&ioc->raid_device_list, list) {
if (!raid_device->responding)
_scsih_sas_volume_delete(ioc,
raid_device->handle);
else
raid_device->responding = 0;
}
}
/* removing unresponding expanders */
ioc_info(ioc, "removing unresponding devices: expanders\n");
spin_lock_irqsave(&ioc->sas_node_lock, flags);
INIT_LIST_HEAD(&tmp_list);
list_for_each_entry_safe(sas_expander, sas_expander_next,
&ioc->sas_expander_list, list) {
if (!sas_expander->responding)
list_move_tail(&sas_expander->list, &tmp_list);
else
sas_expander->responding = 0;
}
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
list_for_each_entry_safe(sas_expander, sas_expander_next, &tmp_list,
list) {
_scsih_expander_node_remove(ioc, sas_expander);
}
ioc_info(ioc, "removing unresponding devices: complete\n");
/* unblock devices */
_scsih_ublock_io_all_device(ioc);
}
static void
_scsih_refresh_expander_links(struct MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander, u16 handle)
{
Mpi2ExpanderPage1_t expander_pg1;
Mpi2ConfigReply_t mpi_reply;
int i;
for (i = 0 ; i < sas_expander->num_phys ; i++) {
if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
&expander_pg1, i, handle))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return;
}
mpt3sas_transport_update_links(ioc, sas_expander->sas_address,
le16_to_cpu(expander_pg1.AttachedDevHandle), i,
expander_pg1.NegotiatedLinkRate >> 4,
sas_expander->port);
}
}
/**
* _scsih_scan_for_devices_after_reset - scan for devices after host reset
* @ioc: per adapter object
*/
static void
_scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2ExpanderPage0_t expander_pg0;
Mpi2SasDevicePage0_t sas_device_pg0;
Mpi26PCIeDevicePage0_t pcie_device_pg0;
Mpi2RaidVolPage1_t volume_pg1;
Mpi2RaidVolPage0_t volume_pg0;
Mpi2RaidPhysDiskPage0_t pd_pg0;
Mpi2EventIrConfigElement_t element;
Mpi2ConfigReply_t mpi_reply;
u8 phys_disk_num, port_id;
u16 ioc_status;
u16 handle, parent_handle;
u64 sas_address;
struct _sas_device *sas_device;
struct _pcie_device *pcie_device;
struct _sas_node *expander_device;
static struct _raid_device *raid_device;
u8 retry_count;
unsigned long flags;
ioc_info(ioc, "scan devices: start\n");
_scsih_sas_host_refresh(ioc);
ioc_info(ioc, "\tscan devices: expanders start\n");
/* expanders */
handle = 0xFFFF;
while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from expander scan: ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(expander_pg0.DevHandle);
spin_lock_irqsave(&ioc->sas_node_lock, flags);
port_id = expander_pg0.PhysicalPort;
expander_device = mpt3sas_scsih_expander_find_by_sas_address(
ioc, le64_to_cpu(expander_pg0.SASAddress),
mpt3sas_get_port_by_id(ioc, port_id, 0));
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
if (expander_device)
_scsih_refresh_expander_links(ioc, expander_device,
handle);
else {
ioc_info(ioc, "\tBEFORE adding expander: handle (0x%04x), sas_addr(0x%016llx)\n",
handle,
(u64)le64_to_cpu(expander_pg0.SASAddress));
_scsih_expander_add(ioc, handle);
ioc_info(ioc, "\tAFTER adding expander: handle (0x%04x), sas_addr(0x%016llx)\n",
handle,
(u64)le64_to_cpu(expander_pg0.SASAddress));
}
}
ioc_info(ioc, "\tscan devices: expanders complete\n");
if (!ioc->ir_firmware)
goto skip_to_sas;
ioc_info(ioc, "\tscan devices: phys disk start\n");
/* phys disk */
phys_disk_num = 0xFF;
while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
&pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
phys_disk_num))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from phys disk scan: ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
phys_disk_num = pd_pg0.PhysDiskNum;
handle = le16_to_cpu(pd_pg0.DevHandle);
sas_device = mpt3sas_get_sdev_by_handle(ioc, handle);
if (sas_device) {
sas_device_put(sas_device);
continue;
}
if (mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
handle) != 0)
continue;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from phys disk scan ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle,
&sas_address)) {
ioc_info(ioc, "\tBEFORE adding phys disk: handle (0x%04x), sas_addr(0x%016llx)\n",
handle,
(u64)le64_to_cpu(sas_device_pg0.SASAddress));
port_id = sas_device_pg0.PhysicalPort;
mpt3sas_transport_update_links(ioc, sas_address,
handle, sas_device_pg0.PhyNum,
MPI2_SAS_NEG_LINK_RATE_1_5,
mpt3sas_get_port_by_id(ioc, port_id, 0));
set_bit(handle, ioc->pd_handles);
retry_count = 0;
/* This will retry adding the end device.
* _scsih_add_device() will decide on retries and
* return "1" when it should be retried
*/
while (_scsih_add_device(ioc, handle, retry_count++,
1)) {
ssleep(1);
}
ioc_info(ioc, "\tAFTER adding phys disk: handle (0x%04x), sas_addr(0x%016llx)\n",
handle,
(u64)le64_to_cpu(sas_device_pg0.SASAddress));
}
}
ioc_info(ioc, "\tscan devices: phys disk complete\n");
ioc_info(ioc, "\tscan devices: volumes start\n");
/* volumes */
handle = 0xFFFF;
while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
&volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from volume scan: ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(volume_pg1.DevHandle);
spin_lock_irqsave(&ioc->raid_device_lock, flags);
raid_device = _scsih_raid_device_find_by_wwid(ioc,
le64_to_cpu(volume_pg1.WWID));
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
if (raid_device)
continue;
if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
&volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
sizeof(Mpi2RaidVolPage0_t)))
continue;
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from volume scan: ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) {
memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t));
element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED;
element.VolDevHandle = volume_pg1.DevHandle;
ioc_info(ioc, "\tBEFORE adding volume: handle (0x%04x)\n",
volume_pg1.DevHandle);
_scsih_sas_volume_add(ioc, &element);
ioc_info(ioc, "\tAFTER adding volume: handle (0x%04x)\n",
volume_pg1.DevHandle);
}
}
ioc_info(ioc, "\tscan devices: volumes complete\n");
skip_to_sas:
ioc_info(ioc, "\tscan devices: end devices start\n");
/* sas devices */
handle = 0xFFFF;
while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from end device scan: ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(sas_device_pg0.DevHandle);
if (!(_scsih_is_end_device(
le32_to_cpu(sas_device_pg0.DeviceInfo))))
continue;
port_id = sas_device_pg0.PhysicalPort;
sas_device = mpt3sas_get_sdev_by_addr(ioc,
le64_to_cpu(sas_device_pg0.SASAddress),
mpt3sas_get_port_by_id(ioc, port_id, 0));
if (sas_device) {
sas_device_put(sas_device);
continue;
}
parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
ioc_info(ioc, "\tBEFORE adding end device: handle (0x%04x), sas_addr(0x%016llx)\n",
handle,
(u64)le64_to_cpu(sas_device_pg0.SASAddress));
mpt3sas_transport_update_links(ioc, sas_address, handle,
sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5,
mpt3sas_get_port_by_id(ioc, port_id, 0));
retry_count = 0;
/* This will retry adding the end device.
* _scsih_add_device() will decide on retries and
* return "1" when it should be retried
*/
while (_scsih_add_device(ioc, handle, retry_count++,
0)) {
ssleep(1);
}
ioc_info(ioc, "\tAFTER adding end device: handle (0x%04x), sas_addr(0x%016llx)\n",
handle,
(u64)le64_to_cpu(sas_device_pg0.SASAddress));
}
}
ioc_info(ioc, "\tscan devices: end devices complete\n");
ioc_info(ioc, "\tscan devices: pcie end devices start\n");
/* pcie devices */
handle = 0xFFFF;
while (!(mpt3sas_config_get_pcie_device_pg0(ioc, &mpi_reply,
&pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
handle))) {
ioc_status = le16_to_cpu(mpi_reply.IOCStatus)
& MPI2_IOCSTATUS_MASK;
if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
ioc_info(ioc, "\tbreak from pcie end device scan: ioc_status(0x%04x), loginfo(0x%08x)\n",
ioc_status, le32_to_cpu(mpi_reply.IOCLogInfo));
break;
}
handle = le16_to_cpu(pcie_device_pg0.DevHandle);
if (!(_scsih_is_nvme_pciescsi_device(
le32_to_cpu(pcie_device_pg0.DeviceInfo))))
continue;
pcie_device = mpt3sas_get_pdev_by_wwid(ioc,
le64_to_cpu(pcie_device_pg0.WWID));
if (pcie_device) {
pcie_device_put(pcie_device);
continue;
}
retry_count = 0;
parent_handle = le16_to_cpu(pcie_device_pg0.ParentDevHandle);
_scsih_pcie_add_device(ioc, handle);
ioc_info(ioc, "\tAFTER adding pcie end device: handle (0x%04x), wwid(0x%016llx)\n",
handle, (u64)le64_to_cpu(pcie_device_pg0.WWID));
}
ioc_info(ioc, "\tpcie devices: pcie end devices complete\n");
ioc_info(ioc, "scan devices: complete\n");
}
/**
* mpt3sas_scsih_pre_reset_handler - reset callback handler (for scsih)
* @ioc: per adapter object
*
* The handler for doing any required cleanup or initialization.
*/
void mpt3sas_scsih_pre_reset_handler(struct MPT3SAS_ADAPTER *ioc)
{
dtmprintk(ioc, ioc_info(ioc, "%s: MPT3_IOC_PRE_RESET\n", __func__));
}
/**
* mpt3sas_scsih_clear_outstanding_scsi_tm_commands - clears outstanding
* scsi & tm cmds.
* @ioc: per adapter object
*
* The handler for doing any required cleanup or initialization.
*/
void
mpt3sas_scsih_clear_outstanding_scsi_tm_commands(struct MPT3SAS_ADAPTER *ioc)
{
dtmprintk(ioc,
ioc_info(ioc, "%s: clear outstanding scsi & tm cmds\n", __func__));
if (ioc->scsih_cmds.status & MPT3_CMD_PENDING) {
ioc->scsih_cmds.status |= MPT3_CMD_RESET;
mpt3sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
complete(&ioc->scsih_cmds.done);
}
if (ioc->tm_cmds.status & MPT3_CMD_PENDING) {
ioc->tm_cmds.status |= MPT3_CMD_RESET;
mpt3sas_base_free_smid(ioc, ioc->tm_cmds.smid);
complete(&ioc->tm_cmds.done);
}
memset(ioc->pend_os_device_add, 0, ioc->pend_os_device_add_sz);
memset(ioc->device_remove_in_progress, 0,
ioc->device_remove_in_progress_sz);
_scsih_fw_event_cleanup_queue(ioc);
_scsih_flush_running_cmds(ioc);
}
/**
* mpt3sas_scsih_reset_done_handler - reset callback handler (for scsih)
* @ioc: per adapter object
*
* The handler for doing any required cleanup or initialization.
*/
void
mpt3sas_scsih_reset_done_handler(struct MPT3SAS_ADAPTER *ioc)
{
dtmprintk(ioc, ioc_info(ioc, "%s: MPT3_IOC_DONE_RESET\n", __func__));
if (!(disable_discovery > 0 && !ioc->sas_hba.num_phys)) {
if (ioc->multipath_on_hba) {
_scsih_sas_port_refresh(ioc);
_scsih_update_vphys_after_reset(ioc);
}
_scsih_prep_device_scan(ioc);
_scsih_create_enclosure_list_after_reset(ioc);
_scsih_search_responding_sas_devices(ioc);
_scsih_search_responding_pcie_devices(ioc);
_scsih_search_responding_raid_devices(ioc);
_scsih_search_responding_expanders(ioc);
_scsih_error_recovery_delete_devices(ioc);
}
}
/**
* _mpt3sas_fw_work - delayed task for processing firmware events
* @ioc: per adapter object
* @fw_event: The fw_event_work object
* Context: user.
*/
static void
_mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
{
ioc->current_event = fw_event;
_scsih_fw_event_del_from_list(ioc, fw_event);
/* the queue is being flushed so ignore this event */
if (ioc->remove_host || ioc->pci_error_recovery) {
fw_event_work_put(fw_event);
ioc->current_event = NULL;
return;
}
switch (fw_event->event) {
case MPT3SAS_PROCESS_TRIGGER_DIAG:
mpt3sas_process_trigger_data(ioc,
(struct SL_WH_TRIGGERS_EVENT_DATA_T *)
fw_event->event_data);
break;
case MPT3SAS_REMOVE_UNRESPONDING_DEVICES:
while (scsi_host_in_recovery(ioc->shost) ||
ioc->shost_recovery) {
/*
* If we're unloading or cancelling the work, bail.
* Otherwise, this can become an infinite loop.
*/
if (ioc->remove_host || ioc->fw_events_cleanup)
goto out;
ssleep(1);
}
_scsih_remove_unresponding_devices(ioc);
_scsih_del_dirty_vphy(ioc);
_scsih_del_dirty_port_entries(ioc);
if (ioc->is_gen35_ioc)
_scsih_update_device_qdepth(ioc);
_scsih_scan_for_devices_after_reset(ioc);
/*
* If diag reset has occurred during the driver load
* then driver has to complete the driver load operation
* by executing the following items:
*- Register the devices from sas_device_init_list to SML
*- clear is_driver_loading flag,
*- start the watchdog thread.
* In happy driver load path, above things are taken care of when
* driver executes scsih_scan_finished().
*/
if (ioc->is_driver_loading)
_scsih_complete_devices_scanning(ioc);
_scsih_set_nvme_max_shutdown_latency(ioc);
break;
case MPT3SAS_PORT_ENABLE_COMPLETE:
ioc->start_scan = 0;
if (missing_delay[0] != -1 && missing_delay[1] != -1)
mpt3sas_base_update_missing_delay(ioc, missing_delay[0],
missing_delay[1]);
dewtprintk(ioc,
ioc_info(ioc, "port enable: complete from worker thread\n"));
break;
case MPT3SAS_TURN_ON_PFA_LED:
_scsih_turn_on_pfa_led(ioc, fw_event->device_handle);
break;
case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
_scsih_sas_topology_change_event(ioc, fw_event);
break;
case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
_scsih_sas_device_status_change_event_debug(ioc,
(Mpi2EventDataSasDeviceStatusChange_t *)
fw_event->event_data);
break;
case MPI2_EVENT_SAS_DISCOVERY:
_scsih_sas_discovery_event(ioc, fw_event);
break;
case MPI2_EVENT_SAS_DEVICE_DISCOVERY_ERROR:
_scsih_sas_device_discovery_error_event(ioc, fw_event);
break;
case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
_scsih_sas_broadcast_primitive_event(ioc, fw_event);
break;
case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
_scsih_sas_enclosure_dev_status_change_event(ioc,
fw_event);
break;
case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
_scsih_sas_ir_config_change_event(ioc, fw_event);
break;
case MPI2_EVENT_IR_VOLUME:
_scsih_sas_ir_volume_event(ioc, fw_event);
break;
case MPI2_EVENT_IR_PHYSICAL_DISK:
_scsih_sas_ir_physical_disk_event(ioc, fw_event);
break;
case MPI2_EVENT_IR_OPERATION_STATUS:
_scsih_sas_ir_operation_status_event(ioc, fw_event);
break;
case MPI2_EVENT_PCIE_DEVICE_STATUS_CHANGE:
_scsih_pcie_device_status_change_event(ioc, fw_event);
break;
case MPI2_EVENT_PCIE_ENUMERATION:
_scsih_pcie_enumeration_event(ioc, fw_event);
break;
case MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
_scsih_pcie_topology_change_event(ioc, fw_event);
ioc->current_event = NULL;
return;
}
out:
fw_event_work_put(fw_event);
ioc->current_event = NULL;
}
/**
* _firmware_event_work
* @work: The fw_event_work object
* Context: user.
*
* wrappers for the work thread handling firmware events
*/
static void
_firmware_event_work(struct work_struct *work)
{
struct fw_event_work *fw_event = container_of(work,
struct fw_event_work, work);
_mpt3sas_fw_work(fw_event->ioc, fw_event);
}
/**
* mpt3sas_scsih_event_callback - firmware event handler (called at ISR time)
* @ioc: per adapter object
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
* Context: interrupt.
*
* This function merely adds a new work task into ioc->firmware_event_thread.
* The tasks are worked from _firmware_event_work in user context.
*
* Return: 1 meaning mf should be freed from _base_interrupt
* 0 means the mf is freed from this function.
*/
u8
mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
u32 reply)
{
struct fw_event_work *fw_event;
Mpi2EventNotificationReply_t *mpi_reply;
u16 event;
u16 sz;
Mpi26EventDataActiveCableExcept_t *ActiveCableEventData;
/* events turned off due to host reset */
if (ioc->pci_error_recovery)
return 1;
mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
if (unlikely(!mpi_reply)) {
ioc_err(ioc, "mpi_reply not valid at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 1;
}
event = le16_to_cpu(mpi_reply->Event);
if (event != MPI2_EVENT_LOG_ENTRY_ADDED)
mpt3sas_trigger_event(ioc, event, 0);
switch (event) {
/* handle these */
case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
{
Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
(Mpi2EventDataSasBroadcastPrimitive_t *)
mpi_reply->EventData;
if (baen_data->Primitive !=
MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT)
return 1;
if (ioc->broadcast_aen_busy) {
ioc->broadcast_aen_pending++;
return 1;
} else
ioc->broadcast_aen_busy = 1;
break;
}
case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
_scsih_check_topo_delete_events(ioc,
(Mpi2EventDataSasTopologyChangeList_t *)
mpi_reply->EventData);
/*
* No need to add the topology change list
* event to fw event work queue when
* diag reset is going on. Since during diag
* reset driver scan the devices by reading
* sas device page0's not by processing the
* events.
*/
if (ioc->shost_recovery)
return 1;
break;
case MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
_scsih_check_pcie_topo_remove_events(ioc,
(Mpi26EventDataPCIeTopologyChangeList_t *)
mpi_reply->EventData);
if (ioc->shost_recovery)
return 1;
break;
case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
_scsih_check_ir_config_unhide_events(ioc,
(Mpi2EventDataIrConfigChangeList_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_IR_VOLUME:
_scsih_check_volume_delete_events(ioc,
(Mpi2EventDataIrVolume_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_LOG_ENTRY_ADDED:
{
Mpi2EventDataLogEntryAdded_t *log_entry;
u32 log_code;
if (!ioc->is_warpdrive)
break;
log_entry = (Mpi2EventDataLogEntryAdded_t *)
mpi_reply->EventData;
log_code = le32_to_cpu(*(__le32 *)log_entry->LogData);
if (le16_to_cpu(log_entry->LogEntryQualifier)
!= MPT2_WARPDRIVE_LOGENTRY)
break;
switch (log_code) {
case MPT2_WARPDRIVE_LC_SSDT:
ioc_warn(ioc, "WarpDrive Warning: IO Throttling has occurred in the WarpDrive subsystem. Check WarpDrive documentation for additional details.\n");
break;
case MPT2_WARPDRIVE_LC_SSDLW:
ioc_warn(ioc, "WarpDrive Warning: Program/Erase Cycles for the WarpDrive subsystem in degraded range. Check WarpDrive documentation for additional details.\n");
break;
case MPT2_WARPDRIVE_LC_SSDLF:
ioc_err(ioc, "WarpDrive Fatal Error: There are no Program/Erase Cycles for the WarpDrive subsystem. The storage device will be in read-only mode. Check WarpDrive documentation for additional details.\n");
break;
case MPT2_WARPDRIVE_LC_BRMF:
ioc_err(ioc, "WarpDrive Fatal Error: The Backup Rail Monitor has failed on the WarpDrive subsystem. Check WarpDrive documentation for additional details.\n");
break;
}
break;
}
case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
_scsih_sas_device_status_change_event(ioc,
(Mpi2EventDataSasDeviceStatusChange_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_IR_OPERATION_STATUS:
case MPI2_EVENT_SAS_DISCOVERY:
case MPI2_EVENT_SAS_DEVICE_DISCOVERY_ERROR:
case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
case MPI2_EVENT_IR_PHYSICAL_DISK:
case MPI2_EVENT_PCIE_ENUMERATION:
case MPI2_EVENT_PCIE_DEVICE_STATUS_CHANGE:
break;
case MPI2_EVENT_TEMP_THRESHOLD:
_scsih_temp_threshold_events(ioc,
(Mpi2EventDataTemperature_t *)
mpi_reply->EventData);
break;
case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION:
ActiveCableEventData =
(Mpi26EventDataActiveCableExcept_t *) mpi_reply->EventData;
switch (ActiveCableEventData->ReasonCode) {
case MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER:
ioc_notice(ioc, "Currently an active cable with ReceptacleID %d\n",
ActiveCableEventData->ReceptacleID);
pr_notice("cannot be powered and devices connected\n");
pr_notice("to this active cable will not be seen\n");
pr_notice("This active cable requires %d mW of power\n",
le32_to_cpu(
ActiveCableEventData->ActiveCablePowerRequirement));
break;
case MPI26_EVENT_ACTIVE_CABLE_DEGRADED:
ioc_notice(ioc, "Currently a cable with ReceptacleID %d\n",
ActiveCableEventData->ReceptacleID);
pr_notice(
"is not running at optimal speed(12 Gb/s rate)\n");
break;
}
break;
default: /* ignore the rest */
return 1;
}
sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
fw_event = alloc_fw_event_work(sz);
if (!fw_event) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return 1;
}
memcpy(fw_event->event_data, mpi_reply->EventData, sz);
fw_event->ioc = ioc;
fw_event->VF_ID = mpi_reply->VF_ID;
fw_event->VP_ID = mpi_reply->VP_ID;
fw_event->event = event;
_scsih_fw_event_add(ioc, fw_event);
fw_event_work_put(fw_event);
return 1;
}
/**
* _scsih_expander_node_remove - removing expander device from list.
* @ioc: per adapter object
* @sas_expander: the sas_device object
*
* Removing object and freeing associated memory from the
* ioc->sas_expander_list.
*/
static void
_scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
struct _sas_node *sas_expander)
{
struct _sas_port *mpt3sas_port, *next;
unsigned long flags;
int port_id;
/* remove sibling ports attached to this expander */
list_for_each_entry_safe(mpt3sas_port, next,
&sas_expander->sas_port_list, port_list) {
if (ioc->shost_recovery)
return;
if (mpt3sas_port->remote_identify.device_type ==
SAS_END_DEVICE)
mpt3sas_device_remove_by_sas_address(ioc,
mpt3sas_port->remote_identify.sas_address,
mpt3sas_port->hba_port);
else if (mpt3sas_port->remote_identify.device_type ==
SAS_EDGE_EXPANDER_DEVICE ||
mpt3sas_port->remote_identify.device_type ==
SAS_FANOUT_EXPANDER_DEVICE)
mpt3sas_expander_remove(ioc,
mpt3sas_port->remote_identify.sas_address,
mpt3sas_port->hba_port);
}
port_id = sas_expander->port->port_id;
mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
sas_expander->sas_address_parent, sas_expander->port);
ioc_info(ioc,
"expander_remove: handle(0x%04x), sas_addr(0x%016llx), port:%d\n",
sas_expander->handle, (unsigned long long)
sas_expander->sas_address,
port_id);
spin_lock_irqsave(&ioc->sas_node_lock, flags);
list_del(&sas_expander->list);
spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
kfree(sas_expander->phy);
kfree(sas_expander);
}
/**
* _scsih_nvme_shutdown - NVMe shutdown notification
* @ioc: per adapter object
*
* Sending IoUnitControl request with shutdown operation code to alert IOC that
* the host system is shutting down so that IOC can issue NVMe shutdown to
* NVMe drives attached to it.
*/
static void
_scsih_nvme_shutdown(struct MPT3SAS_ADAPTER *ioc)
{
Mpi26IoUnitControlRequest_t *mpi_request;
Mpi26IoUnitControlReply_t *mpi_reply;
u16 smid;
/* are there any NVMe devices ? */
if (list_empty(&ioc->pcie_device_list))
return;
mutex_lock(&ioc->scsih_cmds.mutex);
if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
ioc_err(ioc, "%s: scsih_cmd in use\n", __func__);
goto out;
}
ioc->scsih_cmds.status = MPT3_CMD_PENDING;
smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
if (!smid) {
ioc_err(ioc,
"%s: failed obtaining a smid\n", __func__);
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
goto out;
}
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
ioc->scsih_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi26IoUnitControlRequest_t));
mpi_request->Function = MPI2_FUNCTION_IO_UNIT_CONTROL;
mpi_request->Operation = MPI26_CTRL_OP_SHUTDOWN;
init_completion(&ioc->scsih_cmds.done);
ioc->put_smid_default(ioc, smid);
/* Wait for max_shutdown_latency seconds */
ioc_info(ioc,
"Io Unit Control shutdown (sending), Shutdown latency %d sec\n",
ioc->max_shutdown_latency);
wait_for_completion_timeout(&ioc->scsih_cmds.done,
ioc->max_shutdown_latency*HZ);
if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
ioc_err(ioc, "%s: timeout\n", __func__);
goto out;
}
if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
mpi_reply = ioc->scsih_cmds.reply;
ioc_info(ioc, "Io Unit Control shutdown (complete):"
"ioc_status(0x%04x), loginfo(0x%08x)\n",
le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo));
}
out:
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
mutex_unlock(&ioc->scsih_cmds.mutex);
}
/**
* _scsih_ir_shutdown - IR shutdown notification
* @ioc: per adapter object
*
* Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
* the host system is shutting down.
*/
static void
_scsih_ir_shutdown(struct MPT3SAS_ADAPTER *ioc)
{
Mpi2RaidActionRequest_t *mpi_request;
Mpi2RaidActionReply_t *mpi_reply;
u16 smid;
/* is IR firmware build loaded ? */
if (!ioc->ir_firmware)
return;
/* are there any volumes ? */
if (list_empty(&ioc->raid_device_list))
return;
mutex_lock(&ioc->scsih_cmds.mutex);
if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
ioc_err(ioc, "%s: scsih_cmd in use\n", __func__);
goto out;
}
ioc->scsih_cmds.status = MPT3_CMD_PENDING;
smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
if (!smid) {
ioc_err(ioc, "%s: failed obtaining a smid\n", __func__);
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
goto out;
}
mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
ioc->scsih_cmds.smid = smid;
memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
if (!ioc->hide_ir_msg)
ioc_info(ioc, "IR shutdown (sending)\n");
init_completion(&ioc->scsih_cmds.done);
ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
ioc_err(ioc, "%s: timeout\n", __func__);
goto out;
}
if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
mpi_reply = ioc->scsih_cmds.reply;
if (!ioc->hide_ir_msg)
ioc_info(ioc, "IR shutdown (complete): ioc_status(0x%04x), loginfo(0x%08x)\n",
le16_to_cpu(mpi_reply->IOCStatus),
le32_to_cpu(mpi_reply->IOCLogInfo));
}
out:
ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
mutex_unlock(&ioc->scsih_cmds.mutex);
}
/**
* _scsih_get_shost_and_ioc - get shost and ioc
* and verify whether they are NULL or not
* @pdev: PCI device struct
* @shost: address of scsi host pointer
* @ioc: address of HBA adapter pointer
*
* Return zero if *shost and *ioc are not NULL otherwise return error number.
*/
static int
_scsih_get_shost_and_ioc(struct pci_dev *pdev,
struct Scsi_Host **shost, struct MPT3SAS_ADAPTER **ioc)
{
*shost = pci_get_drvdata(pdev);
if (*shost == NULL) {
dev_err(&pdev->dev, "pdev's driver data is null\n");
return -ENXIO;
}
*ioc = shost_priv(*shost);
if (*ioc == NULL) {
dev_err(&pdev->dev, "shost's private data is null\n");
return -ENXIO;
}
return 0;
}
/**
* scsih_remove - detach and remove add host
* @pdev: PCI device struct
*
* Routine called when unloading the driver.
*/
static void scsih_remove(struct pci_dev *pdev)
{
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
struct _sas_port *mpt3sas_port, *next_port;
struct _raid_device *raid_device, *next;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _pcie_device *pcie_device, *pcienext;
struct workqueue_struct *wq;
unsigned long flags;
Mpi2ConfigReply_t mpi_reply;
struct hba_port *port, *port_next;
if (_scsih_get_shost_and_ioc(pdev, &shost, &ioc))
return;
ioc->remove_host = 1;
if (!pci_device_is_present(pdev)) {
mpt3sas_base_pause_mq_polling(ioc);
_scsih_flush_running_cmds(ioc);
}
_scsih_fw_event_cleanup_queue(ioc);
spin_lock_irqsave(&ioc->fw_event_lock, flags);
wq = ioc->firmware_event_thread;
ioc->firmware_event_thread = NULL;
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
if (wq)
destroy_workqueue(wq);
/*
* Copy back the unmodified ioc page1. so that on next driver load,
* current modified changes on ioc page1 won't take effect.
*/
if (ioc->is_aero_ioc)
mpt3sas_config_set_ioc_pg1(ioc, &mpi_reply,
&ioc->ioc_pg1_copy);
/* release all the volumes */
_scsih_ir_shutdown(ioc);
mpt3sas_destroy_debugfs(ioc);
sas_remove_host(shost);
list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
list) {
if (raid_device->starget) {
sas_target_priv_data =
raid_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
scsi_remove_target(&raid_device->starget->dev);
}
ioc_info(ioc, "removing handle(0x%04x), wwid(0x%016llx)\n",
raid_device->handle, (u64)raid_device->wwid);
_scsih_raid_device_remove(ioc, raid_device);
}
list_for_each_entry_safe(pcie_device, pcienext, &ioc->pcie_device_list,
list) {
_scsih_pcie_device_remove_from_sml(ioc, pcie_device);
list_del_init(&pcie_device->list);
pcie_device_put(pcie_device);
}
/* free ports attached to the sas_host */
list_for_each_entry_safe(mpt3sas_port, next_port,
&ioc->sas_hba.sas_port_list, port_list) {
if (mpt3sas_port->remote_identify.device_type ==
SAS_END_DEVICE)
mpt3sas_device_remove_by_sas_address(ioc,
mpt3sas_port->remote_identify.sas_address,
mpt3sas_port->hba_port);
else if (mpt3sas_port->remote_identify.device_type ==
SAS_EDGE_EXPANDER_DEVICE ||
mpt3sas_port->remote_identify.device_type ==
SAS_FANOUT_EXPANDER_DEVICE)
mpt3sas_expander_remove(ioc,
mpt3sas_port->remote_identify.sas_address,
mpt3sas_port->hba_port);
}
list_for_each_entry_safe(port, port_next,
&ioc->port_table_list, list) {
list_del(&port->list);
kfree(port);
}
/* free phys attached to the sas_host */
if (ioc->sas_hba.num_phys) {
kfree(ioc->sas_hba.phy);
ioc->sas_hba.phy = NULL;
ioc->sas_hba.num_phys = 0;
}
mpt3sas_base_detach(ioc);
mpt3sas_ctl_release(ioc);
spin_lock(&gioc_lock);
list_del(&ioc->list);
spin_unlock(&gioc_lock);
scsi_host_put(shost);
}
/**
* scsih_shutdown - routine call during system shutdown
* @pdev: PCI device struct
*/
static void
scsih_shutdown(struct pci_dev *pdev)
{
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
struct workqueue_struct *wq;
unsigned long flags;
Mpi2ConfigReply_t mpi_reply;
if (_scsih_get_shost_and_ioc(pdev, &shost, &ioc))
return;
ioc->remove_host = 1;
if (!pci_device_is_present(pdev)) {
mpt3sas_base_pause_mq_polling(ioc);
_scsih_flush_running_cmds(ioc);
}
_scsih_fw_event_cleanup_queue(ioc);
spin_lock_irqsave(&ioc->fw_event_lock, flags);
wq = ioc->firmware_event_thread;
ioc->firmware_event_thread = NULL;
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
if (wq)
destroy_workqueue(wq);
/*
* Copy back the unmodified ioc page1 so that on next driver load,
* current modified changes on ioc page1 won't take effect.
*/
if (ioc->is_aero_ioc)
mpt3sas_config_set_ioc_pg1(ioc, &mpi_reply,
&ioc->ioc_pg1_copy);
_scsih_ir_shutdown(ioc);
_scsih_nvme_shutdown(ioc);
mpt3sas_base_mask_interrupts(ioc);
mpt3sas_base_stop_watchdog(ioc);
ioc->shost_recovery = 1;
mpt3sas_base_make_ioc_ready(ioc, SOFT_RESET);
ioc->shost_recovery = 0;
mpt3sas_base_free_irq(ioc);
mpt3sas_base_disable_msix(ioc);
}
/**
* _scsih_probe_boot_devices - reports 1st device
* @ioc: per adapter object
*
* If specified in bios page 2, this routine reports the 1st
* device scsi-ml or sas transport for persistent boot device
* purposes. Please refer to function _scsih_determine_boot_device()
*/
static void
_scsih_probe_boot_devices(struct MPT3SAS_ADAPTER *ioc)
{
u32 channel;
void *device;
struct _sas_device *sas_device;
struct _raid_device *raid_device;
struct _pcie_device *pcie_device;
u16 handle;
u64 sas_address_parent;
u64 sas_address;
unsigned long flags;
int rc;
int tid;
struct hba_port *port;
/* no Bios, return immediately */
if (!ioc->bios_pg3.BiosVersion)
return;
device = NULL;
if (ioc->req_boot_device.device) {
device = ioc->req_boot_device.device;
channel = ioc->req_boot_device.channel;
} else if (ioc->req_alt_boot_device.device) {
device = ioc->req_alt_boot_device.device;
channel = ioc->req_alt_boot_device.channel;
} else if (ioc->current_boot_device.device) {
device = ioc->current_boot_device.device;
channel = ioc->current_boot_device.channel;
}
if (!device)
return;
if (channel == RAID_CHANNEL) {
raid_device = device;
/*
* If this boot vd is already registered with SML then
* no need to register it again as part of device scanning
* after diag reset during driver load operation.
*/
if (raid_device->starget)
return;
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
} else if (channel == PCIE_CHANNEL) {
pcie_device = device;
/*
* If this boot NVMe device is already registered with SML then
* no need to register it again as part of device scanning
* after diag reset during driver load operation.
*/
if (pcie_device->starget)
return;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
tid = pcie_device->id;
list_move_tail(&pcie_device->list, &ioc->pcie_device_list);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
rc = scsi_add_device(ioc->shost, PCIE_CHANNEL, tid, 0);
if (rc)
_scsih_pcie_device_remove(ioc, pcie_device);
} else {
sas_device = device;
/*
* If this boot sas/sata device is already registered with SML
* then no need to register it again as part of device scanning
* after diag reset during driver load operation.
*/
if (sas_device->starget)
return;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
handle = sas_device->handle;
sas_address_parent = sas_device->sas_address_parent;
sas_address = sas_device->sas_address;
port = sas_device->port;
list_move_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
if (ioc->hide_drives)
return;
if (!port)
return;
if (!mpt3sas_transport_port_add(ioc, handle,
sas_address_parent, port)) {
_scsih_sas_device_remove(ioc, sas_device);
} else if (!sas_device->starget) {
if (!ioc->is_driver_loading) {
mpt3sas_transport_port_remove(ioc,
sas_address,
sas_address_parent, port);
_scsih_sas_device_remove(ioc, sas_device);
}
}
}
}
/**
* _scsih_probe_raid - reporting raid volumes to scsi-ml
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_raid(struct MPT3SAS_ADAPTER *ioc)
{
struct _raid_device *raid_device, *raid_next;
int rc;
list_for_each_entry_safe(raid_device, raid_next,
&ioc->raid_device_list, list) {
if (raid_device->starget)
continue;
rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
raid_device->id, 0);
if (rc)
_scsih_raid_device_remove(ioc, raid_device);
}
}
static struct _sas_device *get_next_sas_device(struct MPT3SAS_ADAPTER *ioc)
{
struct _sas_device *sas_device = NULL;
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
if (!list_empty(&ioc->sas_device_init_list)) {
sas_device = list_first_entry(&ioc->sas_device_init_list,
struct _sas_device, list);
sas_device_get(sas_device);
}
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
return sas_device;
}
static void sas_device_make_active(struct MPT3SAS_ADAPTER *ioc,
struct _sas_device *sas_device)
{
unsigned long flags;
spin_lock_irqsave(&ioc->sas_device_lock, flags);
/*
* Since we dropped the lock during the call to port_add(), we need to
* be careful here that somebody else didn't move or delete this item
* while we were busy with other things.
*
* If it was on the list, we need a put() for the reference the list
* had. Either way, we need a get() for the destination list.
*/
if (!list_empty(&sas_device->list)) {
list_del_init(&sas_device->list);
sas_device_put(sas_device);
}
sas_device_get(sas_device);
list_add_tail(&sas_device->list, &ioc->sas_device_list);
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
}
/**
* _scsih_probe_sas - reporting sas devices to sas transport
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_sas(struct MPT3SAS_ADAPTER *ioc)
{
struct _sas_device *sas_device;
if (ioc->hide_drives)
return;
while ((sas_device = get_next_sas_device(ioc))) {
if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
sas_device->sas_address_parent, sas_device->port)) {
_scsih_sas_device_remove(ioc, sas_device);
sas_device_put(sas_device);
continue;
} else if (!sas_device->starget) {
/*
* When asyn scanning is enabled, its not possible to
* remove devices while scanning is turned on due to an
* oops in scsi_sysfs_add_sdev()->add_device()->
* sysfs_addrm_start()
*/
if (!ioc->is_driver_loading) {
mpt3sas_transport_port_remove(ioc,
sas_device->sas_address,
sas_device->sas_address_parent,
sas_device->port);
_scsih_sas_device_remove(ioc, sas_device);
sas_device_put(sas_device);
continue;
}
}
sas_device_make_active(ioc, sas_device);
sas_device_put(sas_device);
}
}
/**
* get_next_pcie_device - Get the next pcie device
* @ioc: per adapter object
*
* Get the next pcie device from pcie_device_init_list list.
*
* Return: pcie device structure if pcie_device_init_list list is not empty
* otherwise returns NULL
*/
static struct _pcie_device *get_next_pcie_device(struct MPT3SAS_ADAPTER *ioc)
{
struct _pcie_device *pcie_device = NULL;
unsigned long flags;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
if (!list_empty(&ioc->pcie_device_init_list)) {
pcie_device = list_first_entry(&ioc->pcie_device_init_list,
struct _pcie_device, list);
pcie_device_get(pcie_device);
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
return pcie_device;
}
/**
* pcie_device_make_active - Add pcie device to pcie_device_list list
* @ioc: per adapter object
* @pcie_device: pcie device object
*
* Add the pcie device which has registered with SCSI Transport Later to
* pcie_device_list list
*/
static void pcie_device_make_active(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device)
{
unsigned long flags;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
if (!list_empty(&pcie_device->list)) {
list_del_init(&pcie_device->list);
pcie_device_put(pcie_device);
}
pcie_device_get(pcie_device);
list_add_tail(&pcie_device->list, &ioc->pcie_device_list);
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
}
/**
* _scsih_probe_pcie - reporting PCIe devices to scsi-ml
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_pcie(struct MPT3SAS_ADAPTER *ioc)
{
struct _pcie_device *pcie_device;
int rc;
/* PCIe Device List */
while ((pcie_device = get_next_pcie_device(ioc))) {
if (pcie_device->starget) {
pcie_device_put(pcie_device);
continue;
}
if (pcie_device->access_status ==
MPI26_PCIEDEV0_ASTATUS_DEVICE_BLOCKED) {
pcie_device_make_active(ioc, pcie_device);
pcie_device_put(pcie_device);
continue;
}
rc = scsi_add_device(ioc->shost, PCIE_CHANNEL,
pcie_device->id, 0);
if (rc) {
_scsih_pcie_device_remove(ioc, pcie_device);
pcie_device_put(pcie_device);
continue;
} else if (!pcie_device->starget) {
/*
* When async scanning is enabled, its not possible to
* remove devices while scanning is turned on due to an
* oops in scsi_sysfs_add_sdev()->add_device()->
* sysfs_addrm_start()
*/
if (!ioc->is_driver_loading) {
/* TODO-- Need to find out whether this condition will
* occur or not
*/
_scsih_pcie_device_remove(ioc, pcie_device);
pcie_device_put(pcie_device);
continue;
}
}
pcie_device_make_active(ioc, pcie_device);
pcie_device_put(pcie_device);
}
}
/**
* _scsih_probe_devices - probing for devices
* @ioc: per adapter object
*
* Called during initial loading of the driver.
*/
static void
_scsih_probe_devices(struct MPT3SAS_ADAPTER *ioc)
{
u16 volume_mapping_flags;
if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
return; /* return when IOC doesn't support initiator mode */
_scsih_probe_boot_devices(ioc);
if (ioc->ir_firmware) {
volume_mapping_flags =
le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
if (volume_mapping_flags ==
MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
_scsih_probe_raid(ioc);
_scsih_probe_sas(ioc);
} else {
_scsih_probe_sas(ioc);
_scsih_probe_raid(ioc);
}
} else {
_scsih_probe_sas(ioc);
_scsih_probe_pcie(ioc);
}
}
/**
* scsih_scan_start - scsi lld callback for .scan_start
* @shost: SCSI host pointer
*
* The shost has the ability to discover targets on its own instead
* of scanning the entire bus. In our implemention, we will kick off
* firmware discovery.
*/
static void
scsih_scan_start(struct Scsi_Host *shost)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
int rc;
if (diag_buffer_enable != -1 && diag_buffer_enable != 0)
mpt3sas_enable_diag_buffer(ioc, diag_buffer_enable);
else if (ioc->manu_pg11.HostTraceBufferMaxSizeKB != 0)
mpt3sas_enable_diag_buffer(ioc, 1);
if (disable_discovery > 0)
return;
ioc->start_scan = 1;
rc = mpt3sas_port_enable(ioc);
if (rc != 0)
ioc_info(ioc, "port enable: FAILED\n");
}
/**
* _scsih_complete_devices_scanning - add the devices to sml and
* complete ioc initialization.
* @ioc: per adapter object
*
* Return nothing.
*/
static void _scsih_complete_devices_scanning(struct MPT3SAS_ADAPTER *ioc)
{
if (ioc->wait_for_discovery_to_complete) {
ioc->wait_for_discovery_to_complete = 0;
_scsih_probe_devices(ioc);
}
mpt3sas_base_start_watchdog(ioc);
ioc->is_driver_loading = 0;
}
/**
* scsih_scan_finished - scsi lld callback for .scan_finished
* @shost: SCSI host pointer
* @time: elapsed time of the scan in jiffies
*
* This function will be called periodicallyn until it returns 1 with the
* scsi_host and the elapsed time of the scan in jiffies. In our implemention,
* we wait for firmware discovery to complete, then return 1.
*/
static int
scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
u32 ioc_state;
int issue_hard_reset = 0;
if (disable_discovery > 0) {
ioc->is_driver_loading = 0;
ioc->wait_for_discovery_to_complete = 0;
return 1;
}
if (time >= (300 * HZ)) {
ioc->port_enable_cmds.status = MPT3_CMD_NOT_USED;
ioc_info(ioc, "port enable: FAILED with timeout (timeout=300s)\n");
ioc->is_driver_loading = 0;
return 1;
}
if (ioc->start_scan) {
ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
mpt3sas_print_fault_code(ioc, ioc_state &
MPI2_DOORBELL_DATA_MASK);
issue_hard_reset = 1;
goto out;
} else if ((ioc_state & MPI2_IOC_STATE_MASK) ==
MPI2_IOC_STATE_COREDUMP) {
mpt3sas_base_coredump_info(ioc, ioc_state &
MPI2_DOORBELL_DATA_MASK);
mpt3sas_base_wait_for_coredump_completion(ioc, __func__);
issue_hard_reset = 1;
goto out;
}
return 0;
}
if (ioc->port_enable_cmds.status & MPT3_CMD_RESET) {
ioc_info(ioc,
"port enable: aborted due to diag reset\n");
ioc->port_enable_cmds.status = MPT3_CMD_NOT_USED;
goto out;
}
if (ioc->start_scan_failed) {
ioc_info(ioc, "port enable: FAILED with (ioc_status=0x%08x)\n",
ioc->start_scan_failed);
ioc->is_driver_loading = 0;
ioc->wait_for_discovery_to_complete = 0;
ioc->remove_host = 1;
return 1;
}
ioc_info(ioc, "port enable: SUCCESS\n");
ioc->port_enable_cmds.status = MPT3_CMD_NOT_USED;
_scsih_complete_devices_scanning(ioc);
out:
if (issue_hard_reset) {
ioc->port_enable_cmds.status = MPT3_CMD_NOT_USED;
if (mpt3sas_base_hard_reset_handler(ioc, SOFT_RESET))
ioc->is_driver_loading = 0;
}
return 1;
}
/**
* scsih_map_queues - map reply queues with request queues
* @shost: SCSI host pointer
*/
static void scsih_map_queues(struct Scsi_Host *shost)
{
struct MPT3SAS_ADAPTER *ioc =
(struct MPT3SAS_ADAPTER *)shost->hostdata;
struct blk_mq_queue_map *map;
int i, qoff, offset;
int nr_msix_vectors = ioc->iopoll_q_start_index;
int iopoll_q_count = ioc->reply_queue_count - nr_msix_vectors;
if (shost->nr_hw_queues == 1)
return;
for (i = 0, qoff = 0; i < shost->nr_maps; i++) {
map = &shost->tag_set.map[i];
map->nr_queues = 0;
offset = 0;
if (i == HCTX_TYPE_DEFAULT) {
map->nr_queues =
nr_msix_vectors - ioc->high_iops_queues;
offset = ioc->high_iops_queues;
} else if (i == HCTX_TYPE_POLL)
map->nr_queues = iopoll_q_count;
if (!map->nr_queues)
BUG_ON(i == HCTX_TYPE_DEFAULT);
/*
* The poll queue(s) doesn't have an IRQ (and hence IRQ
* affinity), so use the regular blk-mq cpu mapping
*/
map->queue_offset = qoff;
if (i != HCTX_TYPE_POLL)
blk_mq_pci_map_queues(map, ioc->pdev, offset);
else
blk_mq_map_queues(map);
qoff += map->nr_queues;
}
}
/* shost template for SAS 2.0 HBA devices */
static const struct scsi_host_template mpt2sas_driver_template = {
.module = THIS_MODULE,
.name = "Fusion MPT SAS Host",
.proc_name = MPT2SAS_DRIVER_NAME,
.queuecommand = scsih_qcmd,
.target_alloc = scsih_target_alloc,
.slave_alloc = scsih_slave_alloc,
.device_configure = scsih_device_configure,
.target_destroy = scsih_target_destroy,
.slave_destroy = scsih_slave_destroy,
.scan_finished = scsih_scan_finished,
.scan_start = scsih_scan_start,
.change_queue_depth = scsih_change_queue_depth,
.eh_abort_handler = scsih_abort,
.eh_device_reset_handler = scsih_dev_reset,
.eh_target_reset_handler = scsih_target_reset,
.eh_host_reset_handler = scsih_host_reset,
.bios_param = scsih_bios_param,
.can_queue = 1,
.this_id = -1,
.sg_tablesize = MPT2SAS_SG_DEPTH,
.max_sectors = 32767,
.cmd_per_lun = 7,
.shost_groups = mpt3sas_host_groups,
.sdev_groups = mpt3sas_dev_groups,
.track_queue_depth = 1,
.cmd_size = sizeof(struct scsiio_tracker),
};
/* raid transport support for SAS 2.0 HBA devices */
static struct raid_function_template mpt2sas_raid_functions = {
.cookie = &mpt2sas_driver_template,
.is_raid = scsih_is_raid,
.get_resync = scsih_get_resync,
.get_state = scsih_get_state,
};
/* shost template for SAS 3.0 HBA devices */
static const struct scsi_host_template mpt3sas_driver_template = {
.module = THIS_MODULE,
.name = "Fusion MPT SAS Host",
.proc_name = MPT3SAS_DRIVER_NAME,
.queuecommand = scsih_qcmd,
.target_alloc = scsih_target_alloc,
.slave_alloc = scsih_slave_alloc,
.device_configure = scsih_device_configure,
.target_destroy = scsih_target_destroy,
.slave_destroy = scsih_slave_destroy,
.scan_finished = scsih_scan_finished,
.scan_start = scsih_scan_start,
.change_queue_depth = scsih_change_queue_depth,
.eh_abort_handler = scsih_abort,
.eh_device_reset_handler = scsih_dev_reset,
.eh_target_reset_handler = scsih_target_reset,
.eh_host_reset_handler = scsih_host_reset,
.bios_param = scsih_bios_param,
.can_queue = 1,
.this_id = -1,
.sg_tablesize = MPT3SAS_SG_DEPTH,
.max_sectors = 32767,
.max_segment_size = 0xffffffff,
.cmd_per_lun = 128,
.shost_groups = mpt3sas_host_groups,
.sdev_groups = mpt3sas_dev_groups,
.track_queue_depth = 1,
.cmd_size = sizeof(struct scsiio_tracker),
.map_queues = scsih_map_queues,
.mq_poll = mpt3sas_blk_mq_poll,
};
/* raid transport support for SAS 3.0 HBA devices */
static struct raid_function_template mpt3sas_raid_functions = {
.cookie = &mpt3sas_driver_template,
.is_raid = scsih_is_raid,
.get_resync = scsih_get_resync,
.get_state = scsih_get_state,
};
/**
* _scsih_determine_hba_mpi_version - determine in which MPI version class
* this device belongs to.
* @pdev: PCI device struct
*
* return MPI2_VERSION for SAS 2.0 HBA devices,
* MPI25_VERSION for SAS 3.0 HBA devices, and
* MPI26 VERSION for Cutlass & Invader SAS 3.0 HBA devices
*/
static u16
_scsih_determine_hba_mpi_version(struct pci_dev *pdev)
{
switch (pdev->device) {
case MPI2_MFGPAGE_DEVID_SSS6200:
case MPI2_MFGPAGE_DEVID_SAS2004:
case MPI2_MFGPAGE_DEVID_SAS2008:
case MPI2_MFGPAGE_DEVID_SAS2108_1:
case MPI2_MFGPAGE_DEVID_SAS2108_2:
case MPI2_MFGPAGE_DEVID_SAS2108_3:
case MPI2_MFGPAGE_DEVID_SAS2116_1:
case MPI2_MFGPAGE_DEVID_SAS2116_2:
case MPI2_MFGPAGE_DEVID_SAS2208_1:
case MPI2_MFGPAGE_DEVID_SAS2208_2:
case MPI2_MFGPAGE_DEVID_SAS2208_3:
case MPI2_MFGPAGE_DEVID_SAS2208_4:
case MPI2_MFGPAGE_DEVID_SAS2208_5:
case MPI2_MFGPAGE_DEVID_SAS2208_6:
case MPI2_MFGPAGE_DEVID_SAS2308_1:
case MPI2_MFGPAGE_DEVID_SAS2308_2:
case MPI2_MFGPAGE_DEVID_SAS2308_3:
case MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP:
case MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP_1:
return MPI2_VERSION;
case MPI25_MFGPAGE_DEVID_SAS3004:
case MPI25_MFGPAGE_DEVID_SAS3008:
case MPI25_MFGPAGE_DEVID_SAS3108_1:
case MPI25_MFGPAGE_DEVID_SAS3108_2:
case MPI25_MFGPAGE_DEVID_SAS3108_5:
case MPI25_MFGPAGE_DEVID_SAS3108_6:
return MPI25_VERSION;
case MPI26_MFGPAGE_DEVID_SAS3216:
case MPI26_MFGPAGE_DEVID_SAS3224:
case MPI26_MFGPAGE_DEVID_SAS3316_1:
case MPI26_MFGPAGE_DEVID_SAS3316_2:
case MPI26_MFGPAGE_DEVID_SAS3316_3:
case MPI26_MFGPAGE_DEVID_SAS3316_4:
case MPI26_MFGPAGE_DEVID_SAS3324_1:
case MPI26_MFGPAGE_DEVID_SAS3324_2:
case MPI26_MFGPAGE_DEVID_SAS3324_3:
case MPI26_MFGPAGE_DEVID_SAS3324_4:
case MPI26_MFGPAGE_DEVID_SAS3508:
case MPI26_MFGPAGE_DEVID_SAS3508_1:
case MPI26_MFGPAGE_DEVID_SAS3408:
case MPI26_MFGPAGE_DEVID_SAS3516:
case MPI26_MFGPAGE_DEVID_SAS3516_1:
case MPI26_MFGPAGE_DEVID_SAS3416:
case MPI26_MFGPAGE_DEVID_SAS3616:
case MPI26_ATLAS_PCIe_SWITCH_DEVID:
case MPI26_MFGPAGE_DEVID_CFG_SEC_3916:
case MPI26_MFGPAGE_DEVID_HARD_SEC_3916:
case MPI26_MFGPAGE_DEVID_CFG_SEC_3816:
case MPI26_MFGPAGE_DEVID_HARD_SEC_3816:
case MPI26_MFGPAGE_DEVID_INVALID0_3916:
case MPI26_MFGPAGE_DEVID_INVALID1_3916:
case MPI26_MFGPAGE_DEVID_INVALID0_3816:
case MPI26_MFGPAGE_DEVID_INVALID1_3816:
return MPI26_VERSION;
}
return 0;
}
/**
* _scsih_probe - attach and add scsi host
* @pdev: PCI device struct
* @id: pci device id
*
* Return: 0 success, anything else error.
*/
static int
_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct MPT3SAS_ADAPTER *ioc;
struct Scsi_Host *shost = NULL;
int rv;
u16 hba_mpi_version;
int iopoll_q_count = 0;
/* Determine in which MPI version class this pci device belongs */
hba_mpi_version = _scsih_determine_hba_mpi_version(pdev);
if (hba_mpi_version == 0)
return -ENODEV;
/* Enumerate only SAS 2.0 HBA's if hbas_to_enumerate is one,
* for other generation HBA's return with -ENODEV
*/
if ((hbas_to_enumerate == 1) && (hba_mpi_version != MPI2_VERSION))
return -ENODEV;
/* Enumerate only SAS 3.0 HBA's if hbas_to_enumerate is two,
* for other generation HBA's return with -ENODEV
*/
if ((hbas_to_enumerate == 2) && (!(hba_mpi_version == MPI25_VERSION
|| hba_mpi_version == MPI26_VERSION)))
return -ENODEV;
switch (hba_mpi_version) {
case MPI2_VERSION:
pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
/* Use mpt2sas driver host template for SAS 2.0 HBA's */
shost = scsi_host_alloc(&mpt2sas_driver_template,
sizeof(struct MPT3SAS_ADAPTER));
if (!shost)
return -ENODEV;
ioc = shost_priv(shost);
memset(ioc, 0, sizeof(struct MPT3SAS_ADAPTER));
ioc->hba_mpi_version_belonged = hba_mpi_version;
ioc->id = mpt2_ids++;
sprintf(ioc->driver_name, "%s", MPT2SAS_DRIVER_NAME);
switch (pdev->device) {
case MPI2_MFGPAGE_DEVID_SSS6200:
ioc->is_warpdrive = 1;
ioc->hide_ir_msg = 1;
break;
case MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP:
case MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP_1:
ioc->is_mcpu_endpoint = 1;
break;
default:
ioc->mfg_pg10_hide_flag = MFG_PAGE10_EXPOSE_ALL_DISKS;
break;
}
if (multipath_on_hba == -1 || multipath_on_hba == 0)
ioc->multipath_on_hba = 0;
else
ioc->multipath_on_hba = 1;
break;
case MPI25_VERSION:
case MPI26_VERSION:
/* Use mpt3sas driver host template for SAS 3.0 HBA's */
shost = scsi_host_alloc(&mpt3sas_driver_template,
sizeof(struct MPT3SAS_ADAPTER));
if (!shost)
return -ENODEV;
ioc = shost_priv(shost);
memset(ioc, 0, sizeof(struct MPT3SAS_ADAPTER));
ioc->hba_mpi_version_belonged = hba_mpi_version;
ioc->id = mpt3_ids++;
sprintf(ioc->driver_name, "%s", MPT3SAS_DRIVER_NAME);
switch (pdev->device) {
case MPI26_MFGPAGE_DEVID_SAS3508:
case MPI26_MFGPAGE_DEVID_SAS3508_1:
case MPI26_MFGPAGE_DEVID_SAS3408:
case MPI26_MFGPAGE_DEVID_SAS3516:
case MPI26_MFGPAGE_DEVID_SAS3516_1:
case MPI26_MFGPAGE_DEVID_SAS3416:
case MPI26_MFGPAGE_DEVID_SAS3616:
case MPI26_ATLAS_PCIe_SWITCH_DEVID:
ioc->is_gen35_ioc = 1;
break;
case MPI26_MFGPAGE_DEVID_INVALID0_3816:
case MPI26_MFGPAGE_DEVID_INVALID0_3916:
dev_err(&pdev->dev,
"HBA with DeviceId 0x%04x, sub VendorId 0x%04x, sub DeviceId 0x%04x is Invalid",
pdev->device, pdev->subsystem_vendor,
pdev->subsystem_device);
return 1;
case MPI26_MFGPAGE_DEVID_INVALID1_3816:
case MPI26_MFGPAGE_DEVID_INVALID1_3916:
dev_err(&pdev->dev,
"HBA with DeviceId 0x%04x, sub VendorId 0x%04x, sub DeviceId 0x%04x is Tampered",
pdev->device, pdev->subsystem_vendor,
pdev->subsystem_device);
return 1;
case MPI26_MFGPAGE_DEVID_CFG_SEC_3816:
case MPI26_MFGPAGE_DEVID_CFG_SEC_3916:
dev_info(&pdev->dev,
"HBA is in Configurable Secure mode\n");
fallthrough;
case MPI26_MFGPAGE_DEVID_HARD_SEC_3816:
case MPI26_MFGPAGE_DEVID_HARD_SEC_3916:
ioc->is_aero_ioc = ioc->is_gen35_ioc = 1;
break;
default:
ioc->is_gen35_ioc = ioc->is_aero_ioc = 0;
}
if ((ioc->hba_mpi_version_belonged == MPI25_VERSION &&
pdev->revision >= SAS3_PCI_DEVICE_C0_REVISION) ||
(ioc->hba_mpi_version_belonged == MPI26_VERSION)) {
ioc->combined_reply_queue = 1;
if (ioc->is_gen35_ioc)
ioc->combined_reply_index_count =
MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT_G35;
else
ioc->combined_reply_index_count =
MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT_G3;
}
switch (ioc->is_gen35_ioc) {
case 0:
if (multipath_on_hba == -1 || multipath_on_hba == 0)
ioc->multipath_on_hba = 0;
else
ioc->multipath_on_hba = 1;
break;
case 1:
if (multipath_on_hba == -1 || multipath_on_hba > 0)
ioc->multipath_on_hba = 1;
else
ioc->multipath_on_hba = 0;
break;
default:
break;
}
break;
default:
return -ENODEV;
}
INIT_LIST_HEAD(&ioc->list);
spin_lock(&gioc_lock);
list_add_tail(&ioc->list, &mpt3sas_ioc_list);
spin_unlock(&gioc_lock);
ioc->shost = shost;
ioc->pdev = pdev;
ioc->scsi_io_cb_idx = scsi_io_cb_idx;
ioc->tm_cb_idx = tm_cb_idx;
ioc->ctl_cb_idx = ctl_cb_idx;
ioc->base_cb_idx = base_cb_idx;
ioc->port_enable_cb_idx = port_enable_cb_idx;
ioc->transport_cb_idx = transport_cb_idx;
ioc->scsih_cb_idx = scsih_cb_idx;
ioc->config_cb_idx = config_cb_idx;
ioc->tm_tr_cb_idx = tm_tr_cb_idx;
ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
ioc->logging_level = logging_level;
ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
/* Host waits for minimum of six seconds */
ioc->max_shutdown_latency = IO_UNIT_CONTROL_SHUTDOWN_TIMEOUT;
/*
* Enable MEMORY MOVE support flag.
*/
ioc->drv_support_bitmap |= MPT_DRV_SUPPORT_BITMAP_MEMMOVE;
/* Enable ADDITIONAL QUERY support flag. */
ioc->drv_support_bitmap |= MPT_DRV_SUPPORT_BITMAP_ADDNLQUERY;
ioc->enable_sdev_max_qd = enable_sdev_max_qd;
/* misc semaphores and spin locks */
mutex_init(&ioc->reset_in_progress_mutex);
mutex_init(&ioc->hostdiag_unlock_mutex);
/* initializing pci_access_mutex lock */
mutex_init(&ioc->pci_access_mutex);
spin_lock_init(&ioc->ioc_reset_in_progress_lock);
spin_lock_init(&ioc->scsi_lookup_lock);
spin_lock_init(&ioc->sas_device_lock);
spin_lock_init(&ioc->sas_node_lock);
spin_lock_init(&ioc->fw_event_lock);
spin_lock_init(&ioc->raid_device_lock);
spin_lock_init(&ioc->pcie_device_lock);
spin_lock_init(&ioc->diag_trigger_lock);
INIT_LIST_HEAD(&ioc->sas_device_list);
INIT_LIST_HEAD(&ioc->sas_device_init_list);
INIT_LIST_HEAD(&ioc->sas_expander_list);
INIT_LIST_HEAD(&ioc->enclosure_list);
INIT_LIST_HEAD(&ioc->pcie_device_list);
INIT_LIST_HEAD(&ioc->pcie_device_init_list);
INIT_LIST_HEAD(&ioc->fw_event_list);
INIT_LIST_HEAD(&ioc->raid_device_list);
INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
INIT_LIST_HEAD(&ioc->delayed_tr_list);
INIT_LIST_HEAD(&ioc->delayed_sc_list);
INIT_LIST_HEAD(&ioc->delayed_event_ack_list);
INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
INIT_LIST_HEAD(&ioc->reply_queue_list);
INIT_LIST_HEAD(&ioc->port_table_list);
sprintf(ioc->name, "%s_cm%d", ioc->driver_name, ioc->id);
/* init shost parameters */
shost->max_cmd_len = 32;
shost->max_lun = max_lun;
shost->transportt = mpt3sas_transport_template;
shost->unique_id = ioc->id;
if (ioc->is_mcpu_endpoint) {
/* mCPU MPI support 64K max IO */
shost->max_sectors = 128;
ioc_info(ioc, "The max_sectors value is set to %d\n",
shost->max_sectors);
} else {
if (max_sectors != 0xFFFF) {
if (max_sectors < 64) {
shost->max_sectors = 64;
ioc_warn(ioc, "Invalid value %d passed for max_sectors, range is 64 to 32767. Assigning value of 64.\n",
max_sectors);
} else if (max_sectors > 32767) {
shost->max_sectors = 32767;
ioc_warn(ioc, "Invalid value %d passed for max_sectors, range is 64 to 32767.Assigning default value of 32767.\n",
max_sectors);
} else {
shost->max_sectors = max_sectors & 0xFFFE;
ioc_info(ioc, "The max_sectors value is set to %d\n",
shost->max_sectors);
}
}
}
/* register EEDP capabilities with SCSI layer */
if (prot_mask >= 0)
scsi_host_set_prot(shost, (prot_mask & 0x07));
else
scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
| SHOST_DIF_TYPE2_PROTECTION
| SHOST_DIF_TYPE3_PROTECTION);
scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
/* event thread */
ioc->firmware_event_thread = alloc_ordered_workqueue(
"fw_event_%s%d", 0, ioc->driver_name, ioc->id);
if (!ioc->firmware_event_thread) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rv = -ENODEV;
goto out_thread_fail;
}
shost->host_tagset = 0;
if (ioc->is_gen35_ioc && host_tagset_enable)
shost->host_tagset = 1;
ioc->is_driver_loading = 1;
if ((mpt3sas_base_attach(ioc))) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rv = -ENODEV;
goto out_attach_fail;
}
if (ioc->is_warpdrive) {
if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_EXPOSE_ALL_DISKS)
ioc->hide_drives = 0;
else if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_HIDE_ALL_DISKS)
ioc->hide_drives = 1;
else {
if (mpt3sas_get_num_volumes(ioc))
ioc->hide_drives = 1;
else
ioc->hide_drives = 0;
}
} else
ioc->hide_drives = 0;
shost->nr_hw_queues = 1;
if (shost->host_tagset) {
shost->nr_hw_queues =
ioc->reply_queue_count - ioc->high_iops_queues;
iopoll_q_count =
ioc->reply_queue_count - ioc->iopoll_q_start_index;
shost->nr_maps = iopoll_q_count ? 3 : 1;
dev_info(&ioc->pdev->dev,
"Max SCSIIO MPT commands: %d shared with nr_hw_queues = %d\n",
shost->can_queue, shost->nr_hw_queues);
}
rv = scsi_add_host(shost, &pdev->dev);
if (rv) {
ioc_err(ioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out_add_shost_fail;
}
scsi_scan_host(shost);
mpt3sas_setup_debugfs(ioc);
return 0;
out_add_shost_fail:
mpt3sas_base_detach(ioc);
out_attach_fail:
destroy_workqueue(ioc->firmware_event_thread);
out_thread_fail:
spin_lock(&gioc_lock);
list_del(&ioc->list);
spin_unlock(&gioc_lock);
scsi_host_put(shost);
return rv;
}
/**
* scsih_suspend - power management suspend main entry point
* @dev: Device struct
*
* Return: 0 success, anything else error.
*/
static int __maybe_unused
scsih_suspend(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
int rc;
rc = _scsih_get_shost_and_ioc(pdev, &shost, &ioc);
if (rc)
return rc;
mpt3sas_base_stop_watchdog(ioc);
scsi_block_requests(shost);
_scsih_nvme_shutdown(ioc);
ioc_info(ioc, "pdev=0x%p, slot=%s, entering operating state\n",
pdev, pci_name(pdev));
mpt3sas_base_free_resources(ioc);
return 0;
}
/**
* scsih_resume - power management resume main entry point
* @dev: Device struct
*
* Return: 0 success, anything else error.
*/
static int __maybe_unused
scsih_resume(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
pci_power_t device_state = pdev->current_state;
int r;
r = _scsih_get_shost_and_ioc(pdev, &shost, &ioc);
if (r)
return r;
ioc_info(ioc, "pdev=0x%p, slot=%s, previous operating state [D%d]\n",
pdev, pci_name(pdev), device_state);
ioc->pdev = pdev;
r = mpt3sas_base_map_resources(ioc);
if (r)
return r;
ioc_info(ioc, "Issuing Hard Reset as part of OS Resume\n");
mpt3sas_base_hard_reset_handler(ioc, SOFT_RESET);
scsi_unblock_requests(shost);
mpt3sas_base_start_watchdog(ioc);
return 0;
}
/**
* scsih_pci_error_detected - Called when a PCI error is detected.
* @pdev: PCI device struct
* @state: PCI channel state
*
* Description: Called when a PCI error is detected.
*
* Return: PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT.
*/
static pci_ers_result_t
scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
{
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
if (_scsih_get_shost_and_ioc(pdev, &shost, &ioc))
return PCI_ERS_RESULT_DISCONNECT;
ioc_info(ioc, "PCI error: detected callback, state(%d)!!\n", state);
switch (state) {
case pci_channel_io_normal:
return PCI_ERS_RESULT_CAN_RECOVER;
case pci_channel_io_frozen:
/* Fatal error, prepare for slot reset */
ioc->pci_error_recovery = 1;
scsi_block_requests(ioc->shost);
mpt3sas_base_stop_watchdog(ioc);
mpt3sas_base_free_resources(ioc);
return PCI_ERS_RESULT_NEED_RESET;
case pci_channel_io_perm_failure:
/* Permanent error, prepare for device removal */
ioc->pci_error_recovery = 1;
mpt3sas_base_stop_watchdog(ioc);
mpt3sas_base_pause_mq_polling(ioc);
_scsih_flush_running_cmds(ioc);
return PCI_ERS_RESULT_DISCONNECT;
}
return PCI_ERS_RESULT_NEED_RESET;
}
/**
* scsih_pci_slot_reset - Called when PCI slot has been reset.
* @pdev: PCI device struct
*
* Description: This routine is called by the pci error recovery
* code after the PCI slot has been reset, just before we
* should resume normal operations.
*/
static pci_ers_result_t
scsih_pci_slot_reset(struct pci_dev *pdev)
{
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
int rc;
if (_scsih_get_shost_and_ioc(pdev, &shost, &ioc))
return PCI_ERS_RESULT_DISCONNECT;
ioc_info(ioc, "PCI error: slot reset callback!!\n");
ioc->pci_error_recovery = 0;
ioc->pdev = pdev;
pci_restore_state(pdev);
rc = mpt3sas_base_map_resources(ioc);
if (rc)
return PCI_ERS_RESULT_DISCONNECT;
ioc_info(ioc, "Issuing Hard Reset as part of PCI Slot Reset\n");
rc = mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
ioc_warn(ioc, "hard reset: %s\n",
(rc == 0) ? "success" : "failed");
if (!rc)
return PCI_ERS_RESULT_RECOVERED;
else
return PCI_ERS_RESULT_DISCONNECT;
}
/**
* scsih_pci_resume() - resume normal ops after PCI reset
* @pdev: pointer to PCI device
*
* Called when the error recovery driver tells us that its
* OK to resume normal operation. Use completion to allow
* halted scsi ops to resume.
*/
static void
scsih_pci_resume(struct pci_dev *pdev)
{
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
if (_scsih_get_shost_and_ioc(pdev, &shost, &ioc))
return;
ioc_info(ioc, "PCI error: resume callback!!\n");
mpt3sas_base_start_watchdog(ioc);
scsi_unblock_requests(ioc->shost);
}
/**
* scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
* @pdev: pointer to PCI device
*/
static pci_ers_result_t
scsih_pci_mmio_enabled(struct pci_dev *pdev)
{
struct Scsi_Host *shost;
struct MPT3SAS_ADAPTER *ioc;
if (_scsih_get_shost_and_ioc(pdev, &shost, &ioc))
return PCI_ERS_RESULT_DISCONNECT;
ioc_info(ioc, "PCI error: mmio enabled callback!!\n");
/* TODO - dump whatever for debugging purposes */
/* This called only if scsih_pci_error_detected returns
* PCI_ERS_RESULT_CAN_RECOVER. Read/write to the device still
* works, no need to reset slot.
*/
return PCI_ERS_RESULT_RECOVERED;
}
/*
* The pci device ids are defined in mpi/mpi2_cnfg.h.
*/
static const struct pci_device_id mpt3sas_pci_table[] = {
/* Spitfire ~ 2004 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
PCI_ANY_ID, PCI_ANY_ID },
/* Falcon ~ 2008 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
PCI_ANY_ID, PCI_ANY_ID },
/* Liberator ~ 2108 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
PCI_ANY_ID, PCI_ANY_ID },
/* Meteor ~ 2116 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
PCI_ANY_ID, PCI_ANY_ID },
/* Thunderbolt ~ 2208 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
PCI_ANY_ID, PCI_ANY_ID },
/* Mustang ~ 2308 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP_1,
PCI_ANY_ID, PCI_ANY_ID },
/* SSS6200 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200,
PCI_ANY_ID, PCI_ANY_ID },
/* Fury ~ 3004 and 3008 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3008,
PCI_ANY_ID, PCI_ANY_ID },
/* Invader ~ 3108 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_5,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_6,
PCI_ANY_ID, PCI_ANY_ID },
/* Cutlass ~ 3216 and 3224 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3216,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3224,
PCI_ANY_ID, PCI_ANY_ID },
/* Intruder ~ 3316 and 3324 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3316_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3316_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3316_3,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3316_4,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3324_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3324_2,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3324_3,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3324_4,
PCI_ANY_ID, PCI_ANY_ID },
/* Ventura, Crusader, Harpoon & Tomcat ~ 3516, 3416, 3508 & 3408*/
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3508,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3508_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3408,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3516,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3516_1,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3416,
PCI_ANY_ID, PCI_ANY_ID },
/* Mercator ~ 3616*/
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_SAS3616,
PCI_ANY_ID, PCI_ANY_ID },
/* Aero SI 0x00E1 Configurable Secure
* 0x00E2 Hard Secure
*/
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_CFG_SEC_3916,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_HARD_SEC_3916,
PCI_ANY_ID, PCI_ANY_ID },
/*
* Aero SI –> 0x00E0 Invalid, 0x00E3 Tampered
*/
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_INVALID0_3916,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_INVALID1_3916,
PCI_ANY_ID, PCI_ANY_ID },
/* Atlas PCIe Switch Management Port */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_ATLAS_PCIe_SWITCH_DEVID,
PCI_ANY_ID, PCI_ANY_ID },
/* Sea SI 0x00E5 Configurable Secure
* 0x00E6 Hard Secure
*/
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_CFG_SEC_3816,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_HARD_SEC_3816,
PCI_ANY_ID, PCI_ANY_ID },
/*
* ATTO Branded ExpressSAS H12xx GT
*/
{ MPI2_MFGPAGE_VENDORID_ATTO, MPI26_MFGPAGE_DEVID_HARD_SEC_3816,
PCI_ANY_ID, PCI_ANY_ID },
/*
* Sea SI –> 0x00E4 Invalid, 0x00E7 Tampered
*/
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_INVALID0_3816,
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_INVALID1_3816,
PCI_ANY_ID, PCI_ANY_ID },
{0} /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, mpt3sas_pci_table);
static struct pci_error_handlers _mpt3sas_err_handler = {
.error_detected = scsih_pci_error_detected,
.mmio_enabled = scsih_pci_mmio_enabled,
.slot_reset = scsih_pci_slot_reset,
.resume = scsih_pci_resume,
};
static SIMPLE_DEV_PM_OPS(scsih_pm_ops, scsih_suspend, scsih_resume);
static struct pci_driver mpt3sas_driver = {
.name = MPT3SAS_DRIVER_NAME,
.id_table = mpt3sas_pci_table,
.probe = _scsih_probe,
.remove = scsih_remove,
.shutdown = scsih_shutdown,
.err_handler = &_mpt3sas_err_handler,
.driver.pm = &scsih_pm_ops,
};
/**
* scsih_init - main entry point for this driver.
*
* Return: 0 success, anything else error.
*/
static int
scsih_init(void)
{
mpt2_ids = 0;
mpt3_ids = 0;
mpt3sas_base_initialize_callback_handler();
/* queuecommand callback hander */
scsi_io_cb_idx = mpt3sas_base_register_callback_handler(_scsih_io_done);
/* task management callback handler */
tm_cb_idx = mpt3sas_base_register_callback_handler(_scsih_tm_done);
/* base internal commands callback handler */
base_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_base_done);
port_enable_cb_idx = mpt3sas_base_register_callback_handler(
mpt3sas_port_enable_done);
/* transport internal commands callback handler */
transport_cb_idx = mpt3sas_base_register_callback_handler(
mpt3sas_transport_done);
/* scsih internal commands callback handler */
scsih_cb_idx = mpt3sas_base_register_callback_handler(_scsih_done);
/* configuration page API internal commands callback handler */
config_cb_idx = mpt3sas_base_register_callback_handler(
mpt3sas_config_done);
/* ctl module callback handler */
ctl_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_ctl_done);
tm_tr_cb_idx = mpt3sas_base_register_callback_handler(
_scsih_tm_tr_complete);
tm_tr_volume_cb_idx = mpt3sas_base_register_callback_handler(
_scsih_tm_volume_tr_complete);
tm_sas_control_cb_idx = mpt3sas_base_register_callback_handler(
_scsih_sas_control_complete);
mpt3sas_init_debugfs();
return 0;
}
/**
* scsih_exit - exit point for this driver (when it is a module).
*
* Return: 0 success, anything else error.
*/
static void
scsih_exit(void)
{
mpt3sas_base_release_callback_handler(scsi_io_cb_idx);
mpt3sas_base_release_callback_handler(tm_cb_idx);
mpt3sas_base_release_callback_handler(base_cb_idx);
mpt3sas_base_release_callback_handler(port_enable_cb_idx);
mpt3sas_base_release_callback_handler(transport_cb_idx);
mpt3sas_base_release_callback_handler(scsih_cb_idx);
mpt3sas_base_release_callback_handler(config_cb_idx);
mpt3sas_base_release_callback_handler(ctl_cb_idx);
mpt3sas_base_release_callback_handler(tm_tr_cb_idx);
mpt3sas_base_release_callback_handler(tm_tr_volume_cb_idx);
mpt3sas_base_release_callback_handler(tm_sas_control_cb_idx);
/* raid transport support */
if (hbas_to_enumerate != 1)
raid_class_release(mpt3sas_raid_template);
if (hbas_to_enumerate != 2)
raid_class_release(mpt2sas_raid_template);
sas_release_transport(mpt3sas_transport_template);
mpt3sas_exit_debugfs();
}
/**
* _mpt3sas_init - main entry point for this driver.
*
* Return: 0 success, anything else error.
*/
static int __init
_mpt3sas_init(void)
{
int error;
pr_info("%s version %s loaded\n", MPT3SAS_DRIVER_NAME,
MPT3SAS_DRIVER_VERSION);
mpt3sas_transport_template =
sas_attach_transport(&mpt3sas_transport_functions);
if (!mpt3sas_transport_template)
return -ENODEV;
/* No need attach mpt3sas raid functions template
* if hbas_to_enumarate value is one.
*/
if (hbas_to_enumerate != 1) {
mpt3sas_raid_template =
raid_class_attach(&mpt3sas_raid_functions);
if (!mpt3sas_raid_template) {
sas_release_transport(mpt3sas_transport_template);
return -ENODEV;
}
}
/* No need to attach mpt2sas raid functions template
* if hbas_to_enumarate value is two
*/
if (hbas_to_enumerate != 2) {
mpt2sas_raid_template =
raid_class_attach(&mpt2sas_raid_functions);
if (!mpt2sas_raid_template) {
sas_release_transport(mpt3sas_transport_template);
return -ENODEV;
}
}
error = scsih_init();
if (error) {
scsih_exit();
return error;
}
mpt3sas_ctl_init(hbas_to_enumerate);
error = pci_register_driver(&mpt3sas_driver);
if (error) {
mpt3sas_ctl_exit(hbas_to_enumerate);
scsih_exit();
}
return error;
}
/**
* _mpt3sas_exit - exit point for this driver (when it is a module).
*
*/
static void __exit
_mpt3sas_exit(void)
{
pr_info("mpt3sas version %s unloading\n",
MPT3SAS_DRIVER_VERSION);
pci_unregister_driver(&mpt3sas_driver);
mpt3sas_ctl_exit(hbas_to_enumerate);
scsih_exit();
}
module_init(_mpt3sas_init);
module_exit(_mpt3sas_exit);