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android-kvm / linux / 72641d8d60401a5f1e1a0431ceaf928680d34418 / . / drivers / scsi / mpt3sas / mpt3sas_scsih.c
blob: 00792767c620d707be9f8a64329b32877327778f [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/aer.h>
#include <linux/raid_class.h>
#include <linux/blk-mq-pci.h>
#include <asm/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: ?
* @kp: ?
*
* 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 = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
sizeof(Mpi2RaidVol0PhysDisk_t));
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_slave_configure - device configure 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_configure(struct scsi_device *sdev)
{
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) {
blk_queue_max_hw_sectors(sdev->request_queue,
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)
blk_queue_max_hw_sectors(sdev->request_queue,
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);
/* Enable QUEUE_FLAG_NOMERGES flag, so that IOs won't be
** merged and can eliminate holes created during merging
** operation.
**/
blk_queue_flag_set(QUEUE_FLAG_NOMERGES,
sdev->request_queue);
blk_queue_virt_boundary(sdev->request_queue,
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);