blob: 5925db386b1ba5bdfae89c23f0d03b88046c2e88 [file] [log] [blame]
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/skbuff.h>
#include <linux/if_vlan.h>
#include <linux/if_bridge.h>
#include <linux/workqueue.h>
#include <linux/jiffies.h>
#include <linux/bitops.h>
#include <linux/list.h>
#include <linux/notifier.h>
#include <linux/dcbnl.h>
#include <linux/inetdevice.h>
#include <linux/netlink.h>
#include <linux/jhash.h>
#include <linux/log2.h>
#include <linux/refcount.h>
#include <linux/rhashtable.h>
#include <net/switchdev.h>
#include <net/pkt_cls.h>
#include <net/netevent.h>
#include <net/addrconf.h>
#include "spectrum.h"
#include "pci.h"
#include "core.h"
#include "core_env.h"
#include "reg.h"
#include "port.h"
#include "trap.h"
#include "txheader.h"
#include "spectrum_cnt.h"
#include "spectrum_dpipe.h"
#include "spectrum_acl_flex_actions.h"
#include "spectrum_span.h"
#include "spectrum_ptp.h"
#include "spectrum_trap.h"
#define MLXSW_SP1_FWREV_MAJOR 13
#define MLXSW_SP1_FWREV_MINOR 2008
#define MLXSW_SP1_FWREV_SUBMINOR 3326
#define MLXSW_SP1_FWREV_CAN_RESET_MINOR 1702
static const struct mlxsw_fw_rev mlxsw_sp1_fw_rev = {
.major = MLXSW_SP1_FWREV_MAJOR,
.minor = MLXSW_SP1_FWREV_MINOR,
.subminor = MLXSW_SP1_FWREV_SUBMINOR,
.can_reset_minor = MLXSW_SP1_FWREV_CAN_RESET_MINOR,
};
#define MLXSW_SP1_FW_FILENAME \
"mellanox/mlxsw_spectrum-" __stringify(MLXSW_SP1_FWREV_MAJOR) \
"." __stringify(MLXSW_SP1_FWREV_MINOR) \
"." __stringify(MLXSW_SP1_FWREV_SUBMINOR) ".mfa2"
#define MLXSW_SP2_FWREV_MAJOR 29
#define MLXSW_SP2_FWREV_MINOR 2008
#define MLXSW_SP2_FWREV_SUBMINOR 3326
static const struct mlxsw_fw_rev mlxsw_sp2_fw_rev = {
.major = MLXSW_SP2_FWREV_MAJOR,
.minor = MLXSW_SP2_FWREV_MINOR,
.subminor = MLXSW_SP2_FWREV_SUBMINOR,
};
#define MLXSW_SP2_FW_FILENAME \
"mellanox/mlxsw_spectrum2-" __stringify(MLXSW_SP2_FWREV_MAJOR) \
"." __stringify(MLXSW_SP2_FWREV_MINOR) \
"." __stringify(MLXSW_SP2_FWREV_SUBMINOR) ".mfa2"
#define MLXSW_SP3_FWREV_MAJOR 30
#define MLXSW_SP3_FWREV_MINOR 2008
#define MLXSW_SP3_FWREV_SUBMINOR 3326
static const struct mlxsw_fw_rev mlxsw_sp3_fw_rev = {
.major = MLXSW_SP3_FWREV_MAJOR,
.minor = MLXSW_SP3_FWREV_MINOR,
.subminor = MLXSW_SP3_FWREV_SUBMINOR,
};
#define MLXSW_SP3_FW_FILENAME \
"mellanox/mlxsw_spectrum3-" __stringify(MLXSW_SP3_FWREV_MAJOR) \
"." __stringify(MLXSW_SP3_FWREV_MINOR) \
"." __stringify(MLXSW_SP3_FWREV_SUBMINOR) ".mfa2"
static const char mlxsw_sp1_driver_name[] = "mlxsw_spectrum";
static const char mlxsw_sp2_driver_name[] = "mlxsw_spectrum2";
static const char mlxsw_sp3_driver_name[] = "mlxsw_spectrum3";
static const unsigned char mlxsw_sp1_mac_mask[ETH_ALEN] = {
0xff, 0xff, 0xff, 0xff, 0xfc, 0x00
};
static const unsigned char mlxsw_sp2_mac_mask[ETH_ALEN] = {
0xff, 0xff, 0xff, 0xff, 0xf0, 0x00
};
/* tx_hdr_version
* Tx header version.
* Must be set to 1.
*/
MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4);
/* tx_hdr_ctl
* Packet control type.
* 0 - Ethernet control (e.g. EMADs, LACP)
* 1 - Ethernet data
*/
MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2);
/* tx_hdr_proto
* Packet protocol type. Must be set to 1 (Ethernet).
*/
MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3);
/* tx_hdr_rx_is_router
* Packet is sent from the router. Valid for data packets only.
*/
MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1);
/* tx_hdr_fid_valid
* Indicates if the 'fid' field is valid and should be used for
* forwarding lookup. Valid for data packets only.
*/
MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1);
/* tx_hdr_swid
* Switch partition ID. Must be set to 0.
*/
MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3);
/* tx_hdr_control_tclass
* Indicates if the packet should use the control TClass and not one
* of the data TClasses.
*/
MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1);
/* tx_hdr_etclass
* Egress TClass to be used on the egress device on the egress port.
*/
MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4);
/* tx_hdr_port_mid
* Destination local port for unicast packets.
* Destination multicast ID for multicast packets.
*
* Control packets are directed to a specific egress port, while data
* packets are transmitted through the CPU port (0) into the switch partition,
* where forwarding rules are applied.
*/
MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16);
/* tx_hdr_fid
* Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is
* set, otherwise calculated based on the packet's VID using VID to FID mapping.
* Valid for data packets only.
*/
MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16);
/* tx_hdr_type
* 0 - Data packets
* 6 - Control packets
*/
MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4);
int mlxsw_sp_flow_counter_get(struct mlxsw_sp *mlxsw_sp,
unsigned int counter_index, u64 *packets,
u64 *bytes)
{
char mgpc_pl[MLXSW_REG_MGPC_LEN];
int err;
mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_NOP,
MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl);
if (err)
return err;
if (packets)
*packets = mlxsw_reg_mgpc_packet_counter_get(mgpc_pl);
if (bytes)
*bytes = mlxsw_reg_mgpc_byte_counter_get(mgpc_pl);
return 0;
}
static int mlxsw_sp_flow_counter_clear(struct mlxsw_sp *mlxsw_sp,
unsigned int counter_index)
{
char mgpc_pl[MLXSW_REG_MGPC_LEN];
mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_CLEAR,
MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl);
}
int mlxsw_sp_flow_counter_alloc(struct mlxsw_sp *mlxsw_sp,
unsigned int *p_counter_index)
{
int err;
err = mlxsw_sp_counter_alloc(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW,
p_counter_index);
if (err)
return err;
err = mlxsw_sp_flow_counter_clear(mlxsw_sp, *p_counter_index);
if (err)
goto err_counter_clear;
return 0;
err_counter_clear:
mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW,
*p_counter_index);
return err;
}
void mlxsw_sp_flow_counter_free(struct mlxsw_sp *mlxsw_sp,
unsigned int counter_index)
{
mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW,
counter_index);
}
static void mlxsw_sp_txhdr_construct(struct sk_buff *skb,
const struct mlxsw_tx_info *tx_info)
{
char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN);
memset(txhdr, 0, MLXSW_TXHDR_LEN);
mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1);
mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL);
mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH);
mlxsw_tx_hdr_swid_set(txhdr, 0);
mlxsw_tx_hdr_control_tclass_set(txhdr, 1);
mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port);
mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL);
}
enum mlxsw_reg_spms_state mlxsw_sp_stp_spms_state(u8 state)
{
switch (state) {
case BR_STATE_FORWARDING:
return MLXSW_REG_SPMS_STATE_FORWARDING;
case BR_STATE_LEARNING:
return MLXSW_REG_SPMS_STATE_LEARNING;
case BR_STATE_LISTENING:
case BR_STATE_DISABLED:
case BR_STATE_BLOCKING:
return MLXSW_REG_SPMS_STATE_DISCARDING;
default:
BUG();
}
}
int mlxsw_sp_port_vid_stp_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid,
u8 state)
{
enum mlxsw_reg_spms_state spms_state = mlxsw_sp_stp_spms_state(state);
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char *spms_pl;
int err;
spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
if (!spms_pl)
return -ENOMEM;
mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port);
mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl);
kfree(spms_pl);
return err;
}
static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp)
{
char spad_pl[MLXSW_REG_SPAD_LEN] = {0};
int err;
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl);
if (err)
return err;
mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac);
return 0;
}
int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port,
bool is_up)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char paos_pl[MLXSW_REG_PAOS_LEN];
mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port,
is_up ? MLXSW_PORT_ADMIN_STATUS_UP :
MLXSW_PORT_ADMIN_STATUS_DOWN);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl);
}
static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port,
unsigned char *addr)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char ppad_pl[MLXSW_REG_PPAD_LEN];
mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port);
mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl);
}
static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
eth_hw_addr_gen(mlxsw_sp_port->dev, mlxsw_sp->base_mac,
mlxsw_sp_port->local_port);
return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port,
mlxsw_sp_port->dev->dev_addr);
}
static int mlxsw_sp_port_max_mtu_get(struct mlxsw_sp_port *mlxsw_sp_port, int *p_max_mtu)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char pmtu_pl[MLXSW_REG_PMTU_LEN];
int err;
mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
if (err)
return err;
*p_max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);
return 0;
}
static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char pmtu_pl[MLXSW_REG_PMTU_LEN];
mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
if (mtu > mlxsw_sp_port->max_mtu)
return -EINVAL;
mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
}
static int mlxsw_sp_port_swid_set(struct mlxsw_sp *mlxsw_sp,
u8 local_port, u8 swid)
{
char pspa_pl[MLXSW_REG_PSPA_LEN];
mlxsw_reg_pspa_pack(pspa_pl, swid, local_port);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl);
}
int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port, bool enable)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char svpe_pl[MLXSW_REG_SVPE_LEN];
mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl);
}
int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid,
bool learn_enable)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char *spvmlr_pl;
int err;
spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL);
if (!spvmlr_pl)
return -ENOMEM;
mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid, vid,
learn_enable);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl);
kfree(spvmlr_pl);
return err;
}
int mlxsw_sp_ethtype_to_sver_type(u16 ethtype, u8 *p_sver_type)
{
switch (ethtype) {
case ETH_P_8021Q:
*p_sver_type = 0;
break;
case ETH_P_8021AD:
*p_sver_type = 1;
break;
default:
return -EINVAL;
}
return 0;
}
int mlxsw_sp_port_egress_ethtype_set(struct mlxsw_sp_port *mlxsw_sp_port,
u16 ethtype)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char spevet_pl[MLXSW_REG_SPEVET_LEN];
u8 sver_type;
int err;
err = mlxsw_sp_ethtype_to_sver_type(ethtype, &sver_type);
if (err)
return err;
mlxsw_reg_spevet_pack(spevet_pl, mlxsw_sp_port->local_port, sver_type);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spevet), spevet_pl);
}
static int __mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port,
u16 vid, u16 ethtype)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char spvid_pl[MLXSW_REG_SPVID_LEN];
u8 sver_type;
int err;
err = mlxsw_sp_ethtype_to_sver_type(ethtype, &sver_type);
if (err)
return err;
mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid,
sver_type);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl);
}
static int mlxsw_sp_port_allow_untagged_set(struct mlxsw_sp_port *mlxsw_sp_port,
bool allow)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char spaft_pl[MLXSW_REG_SPAFT_LEN];
mlxsw_reg_spaft_pack(spaft_pl, mlxsw_sp_port->local_port, allow);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spaft), spaft_pl);
}
int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid,
u16 ethtype)
{
int err;
if (!vid) {
err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, false);
if (err)
return err;
} else {
err = __mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid, ethtype);
if (err)
return err;
err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, true);
if (err)
goto err_port_allow_untagged_set;
}
mlxsw_sp_port->pvid = vid;
return 0;
err_port_allow_untagged_set:
__mlxsw_sp_port_pvid_set(mlxsw_sp_port, mlxsw_sp_port->pvid, ethtype);
return err;
}
static int
mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char sspr_pl[MLXSW_REG_SSPR_LEN];
mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl);
}
static int
mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp, u8 local_port,
struct mlxsw_sp_port_mapping *port_mapping)
{
char pmlp_pl[MLXSW_REG_PMLP_LEN];
bool separate_rxtx;
u8 module;
u8 width;
int err;
int i;
mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
if (err)
return err;
module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
width = mlxsw_reg_pmlp_width_get(pmlp_pl);
separate_rxtx = mlxsw_reg_pmlp_rxtx_get(pmlp_pl);
if (width && !is_power_of_2(width)) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unsupported module config: width value is not power of 2\n",
local_port);
return -EINVAL;
}
for (i = 0; i < width; i++) {
if (mlxsw_reg_pmlp_module_get(pmlp_pl, i) != module) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unsupported module config: contains multiple modules\n",
local_port);
return -EINVAL;
}
if (separate_rxtx &&
mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, i) !=
mlxsw_reg_pmlp_rx_lane_get(pmlp_pl, i)) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unsupported module config: TX and RX lane numbers are different\n",
local_port);
return -EINVAL;
}
if (mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, i) != i) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unsupported module config: TX and RX lane numbers are not sequential\n",
local_port);
return -EINVAL;
}
}
port_mapping->module = module;
port_mapping->width = width;
port_mapping->module_width = width;
port_mapping->lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0);
return 0;
}
static int
mlxsw_sp_port_module_map(struct mlxsw_sp *mlxsw_sp, u8 local_port,
const struct mlxsw_sp_port_mapping *port_mapping)
{
char pmlp_pl[MLXSW_REG_PMLP_LEN];
int i, err;
mlxsw_env_module_port_map(mlxsw_sp->core, port_mapping->module);
mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
mlxsw_reg_pmlp_width_set(pmlp_pl, port_mapping->width);
for (i = 0; i < port_mapping->width; i++) {
mlxsw_reg_pmlp_module_set(pmlp_pl, i, port_mapping->module);
mlxsw_reg_pmlp_tx_lane_set(pmlp_pl, i, port_mapping->lane + i); /* Rx & Tx */
}
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
if (err)
goto err_pmlp_write;
return 0;
err_pmlp_write:
mlxsw_env_module_port_unmap(mlxsw_sp->core, port_mapping->module);
return err;
}
static void mlxsw_sp_port_module_unmap(struct mlxsw_sp *mlxsw_sp, u8 local_port,
u8 module)
{
char pmlp_pl[MLXSW_REG_PMLP_LEN];
mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
mlxsw_reg_pmlp_width_set(pmlp_pl, 0);
mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
mlxsw_env_module_port_unmap(mlxsw_sp->core, module);
}
static int mlxsw_sp_port_open(struct net_device *dev)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
int err;
err = mlxsw_env_module_port_up(mlxsw_sp->core,
mlxsw_sp_port->mapping.module);
if (err)
return err;
err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
if (err)
goto err_port_admin_status_set;
netif_start_queue(dev);
return 0;
err_port_admin_status_set:
mlxsw_env_module_port_down(mlxsw_sp->core,
mlxsw_sp_port->mapping.module);
return err;
}
static int mlxsw_sp_port_stop(struct net_device *dev)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
netif_stop_queue(dev);
mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
mlxsw_env_module_port_down(mlxsw_sp->core,
mlxsw_sp_port->mapping.module);
return 0;
}
static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb,
struct net_device *dev)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
const struct mlxsw_tx_info tx_info = {
.local_port = mlxsw_sp_port->local_port,
.is_emad = false,
};
u64 len;
int err;
if (skb_cow_head(skb, MLXSW_TXHDR_LEN)) {
this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
memset(skb->cb, 0, sizeof(struct mlxsw_skb_cb));
if (mlxsw_core_skb_transmit_busy(mlxsw_sp->core, &tx_info))
return NETDEV_TX_BUSY;
if (eth_skb_pad(skb)) {
this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
return NETDEV_TX_OK;
}
mlxsw_sp_txhdr_construct(skb, &tx_info);
/* TX header is consumed by HW on the way so we shouldn't count its
* bytes as being sent.
*/
len = skb->len - MLXSW_TXHDR_LEN;
/* Due to a race we might fail here because of a full queue. In that
* unlikely case we simply drop the packet.
*/
err = mlxsw_core_skb_transmit(mlxsw_sp->core, skb, &tx_info);
if (!err) {
pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
u64_stats_update_begin(&pcpu_stats->syncp);
pcpu_stats->tx_packets++;
pcpu_stats->tx_bytes += len;
u64_stats_update_end(&pcpu_stats->syncp);
} else {
this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
dev_kfree_skb_any(skb);
}
return NETDEV_TX_OK;
}
static void mlxsw_sp_set_rx_mode(struct net_device *dev)
{
}
static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
struct sockaddr *addr = p;
int err;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data);
if (err)
return err;
eth_hw_addr_set(dev, addr->sa_data);
return 0;
}
static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
struct mlxsw_sp_hdroom orig_hdroom;
struct mlxsw_sp_hdroom hdroom;
int err;
orig_hdroom = *mlxsw_sp_port->hdroom;
hdroom = orig_hdroom;
hdroom.mtu = mtu;
mlxsw_sp_hdroom_bufs_reset_sizes(mlxsw_sp_port, &hdroom);
err = mlxsw_sp_hdroom_configure(mlxsw_sp_port, &hdroom);
if (err) {
netdev_err(dev, "Failed to configure port's headroom\n");
return err;
}
err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu);
if (err)
goto err_port_mtu_set;
dev->mtu = mtu;
return 0;
err_port_mtu_set:
mlxsw_sp_hdroom_configure(mlxsw_sp_port, &orig_hdroom);
return err;
}
static int
mlxsw_sp_port_get_sw_stats64(const struct net_device *dev,
struct rtnl_link_stats64 *stats)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
struct mlxsw_sp_port_pcpu_stats *p;
u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
u32 tx_dropped = 0;
unsigned int start;
int i;
for_each_possible_cpu(i) {
p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i);
do {
start = u64_stats_fetch_begin_irq(&p->syncp);
rx_packets = p->rx_packets;
rx_bytes = p->rx_bytes;
tx_packets = p->tx_packets;
tx_bytes = p->tx_bytes;
} while (u64_stats_fetch_retry_irq(&p->syncp, start));
stats->rx_packets += rx_packets;
stats->rx_bytes += rx_bytes;
stats->tx_packets += tx_packets;
stats->tx_bytes += tx_bytes;
/* tx_dropped is u32, updated without syncp protection. */
tx_dropped += p->tx_dropped;
}
stats->tx_dropped = tx_dropped;
return 0;
}
static bool mlxsw_sp_port_has_offload_stats(const struct net_device *dev, int attr_id)
{
switch (attr_id) {
case IFLA_OFFLOAD_XSTATS_CPU_HIT:
return true;
}
return false;
}
static int mlxsw_sp_port_get_offload_stats(int attr_id, const struct net_device *dev,
void *sp)
{
switch (attr_id) {
case IFLA_OFFLOAD_XSTATS_CPU_HIT:
return mlxsw_sp_port_get_sw_stats64(dev, sp);
}
return -EINVAL;
}
int mlxsw_sp_port_get_stats_raw(struct net_device *dev, int grp,
int prio, char *ppcnt_pl)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, grp, prio);
return mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl);
}
static int mlxsw_sp_port_get_hw_stats(struct net_device *dev,
struct rtnl_link_stats64 *stats)
{
char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
int err;
err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT,
0, ppcnt_pl);
if (err)
goto out;
stats->tx_packets =
mlxsw_reg_ppcnt_a_frames_transmitted_ok_get(ppcnt_pl);
stats->rx_packets =
mlxsw_reg_ppcnt_a_frames_received_ok_get(ppcnt_pl);
stats->tx_bytes =
mlxsw_reg_ppcnt_a_octets_transmitted_ok_get(ppcnt_pl);
stats->rx_bytes =
mlxsw_reg_ppcnt_a_octets_received_ok_get(ppcnt_pl);
stats->multicast =
mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get(ppcnt_pl);
stats->rx_crc_errors =
mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get(ppcnt_pl);
stats->rx_frame_errors =
mlxsw_reg_ppcnt_a_alignment_errors_get(ppcnt_pl);
stats->rx_length_errors = (
mlxsw_reg_ppcnt_a_in_range_length_errors_get(ppcnt_pl) +
mlxsw_reg_ppcnt_a_out_of_range_length_field_get(ppcnt_pl) +
mlxsw_reg_ppcnt_a_frame_too_long_errors_get(ppcnt_pl));
stats->rx_errors = (stats->rx_crc_errors +
stats->rx_frame_errors + stats->rx_length_errors);
out:
return err;
}
static void
mlxsw_sp_port_get_hw_xstats(struct net_device *dev,
struct mlxsw_sp_port_xstats *xstats)
{
char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
int err, i;
err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_EXT_CNT, 0,
ppcnt_pl);
if (!err)
xstats->ecn = mlxsw_reg_ppcnt_ecn_marked_get(ppcnt_pl);
for (i = 0; i < TC_MAX_QUEUE; i++) {
err = mlxsw_sp_port_get_stats_raw(dev,
MLXSW_REG_PPCNT_TC_CONG_CNT,
i, ppcnt_pl);
if (err)
goto tc_cnt;
xstats->wred_drop[i] =
mlxsw_reg_ppcnt_wred_discard_get(ppcnt_pl);
xstats->tc_ecn[i] = mlxsw_reg_ppcnt_ecn_marked_tc_get(ppcnt_pl);
tc_cnt:
err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_TC_CNT,
i, ppcnt_pl);
if (err)
continue;
xstats->backlog[i] =
mlxsw_reg_ppcnt_tc_transmit_queue_get(ppcnt_pl);
xstats->tail_drop[i] =
mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get(ppcnt_pl);
}
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_PRIO_CNT,
i, ppcnt_pl);
if (err)
continue;
xstats->tx_packets[i] = mlxsw_reg_ppcnt_tx_frames_get(ppcnt_pl);
xstats->tx_bytes[i] = mlxsw_reg_ppcnt_tx_octets_get(ppcnt_pl);
}
}
static void update_stats_cache(struct work_struct *work)
{
struct mlxsw_sp_port *mlxsw_sp_port =
container_of(work, struct mlxsw_sp_port,
periodic_hw_stats.update_dw.work);
if (!netif_carrier_ok(mlxsw_sp_port->dev))
/* Note: mlxsw_sp_port_down_wipe_counters() clears the cache as
* necessary when port goes down.
*/
goto out;
mlxsw_sp_port_get_hw_stats(mlxsw_sp_port->dev,
&mlxsw_sp_port->periodic_hw_stats.stats);
mlxsw_sp_port_get_hw_xstats(mlxsw_sp_port->dev,
&mlxsw_sp_port->periodic_hw_stats.xstats);
out:
mlxsw_core_schedule_dw(&mlxsw_sp_port->periodic_hw_stats.update_dw,
MLXSW_HW_STATS_UPDATE_TIME);
}
/* Return the stats from a cache that is updated periodically,
* as this function might get called in an atomic context.
*/
static void
mlxsw_sp_port_get_stats64(struct net_device *dev,
struct rtnl_link_stats64 *stats)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
memcpy(stats, &mlxsw_sp_port->periodic_hw_stats.stats, sizeof(*stats));
}
static int __mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
u16 vid_begin, u16 vid_end,
bool is_member, bool untagged)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char *spvm_pl;
int err;
spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL);
if (!spvm_pl)
return -ENOMEM;
mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port, vid_begin,
vid_end, is_member, untagged);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl);
kfree(spvm_pl);
return err;
}
int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin,
u16 vid_end, bool is_member, bool untagged)
{
u16 vid, vid_e;
int err;
for (vid = vid_begin; vid <= vid_end;
vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
vid_end);
err = __mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e,
is_member, untagged);
if (err)
return err;
}
return 0;
}
static void mlxsw_sp_port_vlan_flush(struct mlxsw_sp_port *mlxsw_sp_port,
bool flush_default)
{
struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan, *tmp;
list_for_each_entry_safe(mlxsw_sp_port_vlan, tmp,
&mlxsw_sp_port->vlans_list, list) {
if (!flush_default &&
mlxsw_sp_port_vlan->vid == MLXSW_SP_DEFAULT_VID)
continue;
mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan);
}
}
static void
mlxsw_sp_port_vlan_cleanup(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
{
if (mlxsw_sp_port_vlan->bridge_port)
mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
else if (mlxsw_sp_port_vlan->fid)
mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan);
}
struct mlxsw_sp_port_vlan *
mlxsw_sp_port_vlan_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
{
struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
bool untagged = vid == MLXSW_SP_DEFAULT_VID;
int err;
mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
if (mlxsw_sp_port_vlan)
return ERR_PTR(-EEXIST);
err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, true, untagged);
if (err)
return ERR_PTR(err);
mlxsw_sp_port_vlan = kzalloc(sizeof(*mlxsw_sp_port_vlan), GFP_KERNEL);
if (!mlxsw_sp_port_vlan) {
err = -ENOMEM;
goto err_port_vlan_alloc;
}
mlxsw_sp_port_vlan->mlxsw_sp_port = mlxsw_sp_port;
mlxsw_sp_port_vlan->vid = vid;
list_add(&mlxsw_sp_port_vlan->list, &mlxsw_sp_port->vlans_list);
return mlxsw_sp_port_vlan;
err_port_vlan_alloc:
mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
return ERR_PTR(err);
}
void mlxsw_sp_port_vlan_destroy(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
{
struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
u16 vid = mlxsw_sp_port_vlan->vid;
mlxsw_sp_port_vlan_cleanup(mlxsw_sp_port_vlan);
list_del(&mlxsw_sp_port_vlan->list);
kfree(mlxsw_sp_port_vlan);
mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
}
static int mlxsw_sp_port_add_vid(struct net_device *dev,
__be16 __always_unused proto, u16 vid)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
/* VLAN 0 is added to HW filter when device goes up, but it is
* reserved in our case, so simply return.
*/
if (!vid)
return 0;
return PTR_ERR_OR_ZERO(mlxsw_sp_port_vlan_create(mlxsw_sp_port, vid));
}
static int mlxsw_sp_port_kill_vid(struct net_device *dev,
__be16 __always_unused proto, u16 vid)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
/* VLAN 0 is removed from HW filter when device goes down, but
* it is reserved in our case, so simply return.
*/
if (!vid)
return 0;
mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
if (!mlxsw_sp_port_vlan)
return 0;
mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan);
return 0;
}
static int mlxsw_sp_setup_tc_block(struct mlxsw_sp_port *mlxsw_sp_port,
struct flow_block_offload *f)
{
switch (f->binder_type) {
case FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS:
return mlxsw_sp_setup_tc_block_clsact(mlxsw_sp_port, f, true);
case FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS:
return mlxsw_sp_setup_tc_block_clsact(mlxsw_sp_port, f, false);
case FLOW_BLOCK_BINDER_TYPE_RED_EARLY_DROP:
return mlxsw_sp_setup_tc_block_qevent_early_drop(mlxsw_sp_port, f);
case FLOW_BLOCK_BINDER_TYPE_RED_MARK:
return mlxsw_sp_setup_tc_block_qevent_mark(mlxsw_sp_port, f);
default:
return -EOPNOTSUPP;
}
}
static int mlxsw_sp_setup_tc(struct net_device *dev, enum tc_setup_type type,
void *type_data)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
switch (type) {
case TC_SETUP_BLOCK:
return mlxsw_sp_setup_tc_block(mlxsw_sp_port, type_data);
case TC_SETUP_QDISC_RED:
return mlxsw_sp_setup_tc_red(mlxsw_sp_port, type_data);
case TC_SETUP_QDISC_PRIO:
return mlxsw_sp_setup_tc_prio(mlxsw_sp_port, type_data);
case TC_SETUP_QDISC_ETS:
return mlxsw_sp_setup_tc_ets(mlxsw_sp_port, type_data);
case TC_SETUP_QDISC_TBF:
return mlxsw_sp_setup_tc_tbf(mlxsw_sp_port, type_data);
case TC_SETUP_QDISC_FIFO:
return mlxsw_sp_setup_tc_fifo(mlxsw_sp_port, type_data);
default:
return -EOPNOTSUPP;
}
}
static int mlxsw_sp_feature_hw_tc(struct net_device *dev, bool enable)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
if (!enable) {
if (mlxsw_sp_flow_block_rule_count(mlxsw_sp_port->ing_flow_block) ||
mlxsw_sp_flow_block_rule_count(mlxsw_sp_port->eg_flow_block)) {
netdev_err(dev, "Active offloaded tc filters, can't turn hw_tc_offload off\n");
return -EINVAL;
}
mlxsw_sp_flow_block_disable_inc(mlxsw_sp_port->ing_flow_block);
mlxsw_sp_flow_block_disable_inc(mlxsw_sp_port->eg_flow_block);
} else {
mlxsw_sp_flow_block_disable_dec(mlxsw_sp_port->ing_flow_block);
mlxsw_sp_flow_block_disable_dec(mlxsw_sp_port->eg_flow_block);
}
return 0;
}
static int mlxsw_sp_feature_loopback(struct net_device *dev, bool enable)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
char pplr_pl[MLXSW_REG_PPLR_LEN];
int err;
if (netif_running(dev))
mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
mlxsw_reg_pplr_pack(pplr_pl, mlxsw_sp_port->local_port, enable);
err = mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pplr),
pplr_pl);
if (netif_running(dev))
mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
return err;
}
typedef int (*mlxsw_sp_feature_handler)(struct net_device *dev, bool enable);
static int mlxsw_sp_handle_feature(struct net_device *dev,
netdev_features_t wanted_features,
netdev_features_t feature,
mlxsw_sp_feature_handler feature_handler)
{
netdev_features_t changes = wanted_features ^ dev->features;
bool enable = !!(wanted_features & feature);
int err;
if (!(changes & feature))
return 0;
err = feature_handler(dev, enable);
if (err) {
netdev_err(dev, "%s feature %pNF failed, err %d\n",
enable ? "Enable" : "Disable", &feature, err);
return err;
}
if (enable)
dev->features |= feature;
else
dev->features &= ~feature;
return 0;
}
static int mlxsw_sp_set_features(struct net_device *dev,
netdev_features_t features)
{
netdev_features_t oper_features = dev->features;
int err = 0;
err |= mlxsw_sp_handle_feature(dev, features, NETIF_F_HW_TC,
mlxsw_sp_feature_hw_tc);
err |= mlxsw_sp_handle_feature(dev, features, NETIF_F_LOOPBACK,
mlxsw_sp_feature_loopback);
if (err) {
dev->features = oper_features;
return -EINVAL;
}
return 0;
}
static struct devlink_port *
mlxsw_sp_port_get_devlink_port(struct net_device *dev)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
return mlxsw_core_port_devlink_port_get(mlxsw_sp->core,
mlxsw_sp_port->local_port);
}
static int mlxsw_sp_port_hwtstamp_set(struct mlxsw_sp_port *mlxsw_sp_port,
struct ifreq *ifr)
{
struct hwtstamp_config config;
int err;
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
return -EFAULT;
err = mlxsw_sp_port->mlxsw_sp->ptp_ops->hwtstamp_set(mlxsw_sp_port,
&config);
if (err)
return err;
if (copy_to_user(ifr->ifr_data, &config, sizeof(config)))
return -EFAULT;
return 0;
}
static int mlxsw_sp_port_hwtstamp_get(struct mlxsw_sp_port *mlxsw_sp_port,
struct ifreq *ifr)
{
struct hwtstamp_config config;
int err;
err = mlxsw_sp_port->mlxsw_sp->ptp_ops->hwtstamp_get(mlxsw_sp_port,
&config);
if (err)
return err;
if (copy_to_user(ifr->ifr_data, &config, sizeof(config)))
return -EFAULT;
return 0;
}
static inline void mlxsw_sp_port_ptp_clear(struct mlxsw_sp_port *mlxsw_sp_port)
{
struct hwtstamp_config config = {0};
mlxsw_sp_port->mlxsw_sp->ptp_ops->hwtstamp_set(mlxsw_sp_port, &config);
}
static int
mlxsw_sp_port_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
switch (cmd) {
case SIOCSHWTSTAMP:
return mlxsw_sp_port_hwtstamp_set(mlxsw_sp_port, ifr);
case SIOCGHWTSTAMP:
return mlxsw_sp_port_hwtstamp_get(mlxsw_sp_port, ifr);
default:
return -EOPNOTSUPP;
}
}
static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
.ndo_open = mlxsw_sp_port_open,
.ndo_stop = mlxsw_sp_port_stop,
.ndo_start_xmit = mlxsw_sp_port_xmit,
.ndo_setup_tc = mlxsw_sp_setup_tc,
.ndo_set_rx_mode = mlxsw_sp_set_rx_mode,
.ndo_set_mac_address = mlxsw_sp_port_set_mac_address,
.ndo_change_mtu = mlxsw_sp_port_change_mtu,
.ndo_get_stats64 = mlxsw_sp_port_get_stats64,
.ndo_has_offload_stats = mlxsw_sp_port_has_offload_stats,
.ndo_get_offload_stats = mlxsw_sp_port_get_offload_stats,
.ndo_vlan_rx_add_vid = mlxsw_sp_port_add_vid,
.ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid,
.ndo_set_features = mlxsw_sp_set_features,
.ndo_get_devlink_port = mlxsw_sp_port_get_devlink_port,
.ndo_eth_ioctl = mlxsw_sp_port_ioctl,
};
static int
mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
u32 eth_proto_cap, eth_proto_admin, eth_proto_oper;
const struct mlxsw_sp_port_type_speed_ops *ops;
char ptys_pl[MLXSW_REG_PTYS_LEN];
u32 eth_proto_cap_masked;
int err;
ops = mlxsw_sp->port_type_speed_ops;
/* Set advertised speeds to speeds supported by both the driver
* and the device.
*/
ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port,
0, false);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
if (err)
return err;
ops->reg_ptys_eth_unpack(mlxsw_sp, ptys_pl, &eth_proto_cap,
&eth_proto_admin, &eth_proto_oper);
eth_proto_cap_masked = ops->ptys_proto_cap_masked_get(eth_proto_cap);
ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port,
eth_proto_cap_masked,
mlxsw_sp_port->link.autoneg);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
}
int mlxsw_sp_port_speed_get(struct mlxsw_sp_port *mlxsw_sp_port, u32 *speed)
{
const struct mlxsw_sp_port_type_speed_ops *port_type_speed_ops;
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char ptys_pl[MLXSW_REG_PTYS_LEN];
u32 eth_proto_oper;
int err;
port_type_speed_ops = mlxsw_sp->port_type_speed_ops;
port_type_speed_ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl,
mlxsw_sp_port->local_port, 0,
false);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
if (err)
return err;
port_type_speed_ops->reg_ptys_eth_unpack(mlxsw_sp, ptys_pl, NULL, NULL,
&eth_proto_oper);
*speed = port_type_speed_ops->from_ptys_speed(mlxsw_sp, eth_proto_oper);
return 0;
}
int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
bool dwrr, u8 dwrr_weight)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char qeec_pl[MLXSW_REG_QEEC_LEN];
mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
next_index);
mlxsw_reg_qeec_de_set(qeec_pl, true);
mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr);
mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
}
int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port,
enum mlxsw_reg_qeec_hr hr, u8 index,
u8 next_index, u32 maxrate, u8 burst_size)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char qeec_pl[MLXSW_REG_QEEC_LEN];
mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
next_index);
mlxsw_reg_qeec_mase_set(qeec_pl, true);
mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate);
mlxsw_reg_qeec_max_shaper_bs_set(qeec_pl, burst_size);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
}
static int mlxsw_sp_port_min_bw_set(struct mlxsw_sp_port *mlxsw_sp_port,
enum mlxsw_reg_qeec_hr hr, u8 index,
u8 next_index, u32 minrate)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char qeec_pl[MLXSW_REG_QEEC_LEN];
mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
next_index);
mlxsw_reg_qeec_mise_set(qeec_pl, true);
mlxsw_reg_qeec_min_shaper_rate_set(qeec_pl, minrate);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
}
int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port,
u8 switch_prio, u8 tclass)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char qtct_pl[MLXSW_REG_QTCT_LEN];
mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio,
tclass);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl);
}
static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
int err, i;
/* Setup the elements hierarcy, so that each TC is linked to
* one subgroup, which are all member in the same group.
*/
err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
MLXSW_REG_QEEC_HR_GROUP, 0, 0, false, 0);
if (err)
return err;
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
MLXSW_REG_QEEC_HR_SUBGROUP, i,
0, false, 0);
if (err)
return err;
}
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
MLXSW_REG_QEEC_HR_TC, i, i,
false, 0);
if (err)
return err;
err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
MLXSW_REG_QEEC_HR_TC,
i + 8, i,
true, 100);
if (err)
return err;
}
/* Make sure the max shaper is disabled in all hierarchies that support
* it. Note that this disables ptps (PTP shaper), but that is intended
* for the initial configuration.
*/
err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
MLXSW_REG_QEEC_HR_PORT, 0, 0,
MLXSW_REG_QEEC_MAS_DIS, 0);
if (err)
return err;
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
MLXSW_REG_QEEC_HR_SUBGROUP,
i, 0,
MLXSW_REG_QEEC_MAS_DIS, 0);
if (err)
return err;
}
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
MLXSW_REG_QEEC_HR_TC,
i, i,
MLXSW_REG_QEEC_MAS_DIS, 0);
if (err)
return err;
err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
MLXSW_REG_QEEC_HR_TC,
i + 8, i,
MLXSW_REG_QEEC_MAS_DIS, 0);
if (err)
return err;
}
/* Configure the min shaper for multicast TCs. */
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
err = mlxsw_sp_port_min_bw_set(mlxsw_sp_port,
MLXSW_REG_QEEC_HR_TC,
i + 8, i,
MLXSW_REG_QEEC_MIS_MIN);
if (err)
return err;
}
/* Map all priorities to traffic class 0. */
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0);
if (err)
return err;
}
return 0;
}
static int mlxsw_sp_port_tc_mc_mode_set(struct mlxsw_sp_port *mlxsw_sp_port,
bool enable)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char qtctm_pl[MLXSW_REG_QTCTM_LEN];
mlxsw_reg_qtctm_pack(qtctm_pl, mlxsw_sp_port->local_port, enable);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtctm), qtctm_pl);
}
static int mlxsw_sp_port_overheat_init_val_set(struct mlxsw_sp_port *mlxsw_sp_port)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
u8 module = mlxsw_sp_port->mapping.module;
u64 overheat_counter;
int err;
err = mlxsw_env_module_overheat_counter_get(mlxsw_sp->core, module,
&overheat_counter);
if (err)
return err;
mlxsw_sp_port->module_overheat_initial_val = overheat_counter;
return 0;
}
int
mlxsw_sp_port_vlan_classification_set(struct mlxsw_sp_port *mlxsw_sp_port,
bool is_8021ad_tagged,
bool is_8021q_tagged)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char spvc_pl[MLXSW_REG_SPVC_LEN];
mlxsw_reg_spvc_pack(spvc_pl, mlxsw_sp_port->local_port,
is_8021ad_tagged, is_8021q_tagged);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvc), spvc_pl);
}
static int mlxsw_sp_port_label_info_get(struct mlxsw_sp *mlxsw_sp,
u8 local_port, u8 *port_number,
u8 *split_port_subnumber,
u8 *slot_index)
{
char pllp_pl[MLXSW_REG_PLLP_LEN];
int err;
mlxsw_reg_pllp_pack(pllp_pl, local_port);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pllp), pllp_pl);
if (err)
return err;
mlxsw_reg_pllp_unpack(pllp_pl, port_number,
split_port_subnumber, slot_index);
return 0;
}
static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
bool split,
struct mlxsw_sp_port_mapping *port_mapping)
{
struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
struct mlxsw_sp_port *mlxsw_sp_port;
u32 lanes = port_mapping->width;
u8 split_port_subnumber;
struct net_device *dev;
u8 port_number;
u8 slot_index;
bool splittable;
int err;
err = mlxsw_sp_port_module_map(mlxsw_sp, local_port, port_mapping);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to map module\n",
local_port);
return err;
}
err = mlxsw_sp_port_swid_set(mlxsw_sp, local_port, 0);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n",
local_port);
goto err_port_swid_set;
}
err = mlxsw_sp_port_label_info_get(mlxsw_sp, local_port, &port_number,
&split_port_subnumber, &slot_index);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to get port label information\n",
local_port);
goto err_port_label_info_get;
}
splittable = lanes > 1 && !split;
err = mlxsw_core_port_init(mlxsw_sp->core, local_port,
port_number, split, split_port_subnumber,
splittable, lanes, mlxsw_sp->base_mac,
sizeof(mlxsw_sp->base_mac));
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n",
local_port);
goto err_core_port_init;
}
dev = alloc_etherdev(sizeof(struct mlxsw_sp_port));
if (!dev) {
err = -ENOMEM;
goto err_alloc_etherdev;
}
SET_NETDEV_DEV(dev, mlxsw_sp->bus_info->dev);
dev_net_set(dev, mlxsw_sp_net(mlxsw_sp));
mlxsw_sp_port = netdev_priv(dev);
mlxsw_sp_port->dev = dev;
mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
mlxsw_sp_port->local_port = local_port;
mlxsw_sp_port->pvid = MLXSW_SP_DEFAULT_VID;
mlxsw_sp_port->split = split;
mlxsw_sp_port->mapping = *port_mapping;
mlxsw_sp_port->link.autoneg = 1;
INIT_LIST_HEAD(&mlxsw_sp_port->vlans_list);
mlxsw_sp_port->pcpu_stats =
netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats);
if (!mlxsw_sp_port->pcpu_stats) {
err = -ENOMEM;
goto err_alloc_stats;
}
INIT_DELAYED_WORK(&mlxsw_sp_port->periodic_hw_stats.update_dw,
&update_stats_cache);
dev->netdev_ops = &mlxsw_sp_port_netdev_ops;
dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops;
err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n",
mlxsw_sp_port->local_port);
goto err_dev_addr_init;
}
netif_carrier_off(dev);
dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG |
NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
dev->hw_features |= NETIF_F_HW_TC | NETIF_F_LOOPBACK;
dev->min_mtu = 0;
dev->max_mtu = ETH_MAX_MTU;
/* Each packet needs to have a Tx header (metadata) on top all other
* headers.
*/
dev->needed_headroom = MLXSW_TXHDR_LEN;
err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n",
mlxsw_sp_port->local_port);
goto err_port_system_port_mapping_set;
}
err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n",
mlxsw_sp_port->local_port);
goto err_port_speed_by_width_set;
}
err = mlxsw_sp->port_type_speed_ops->ptys_max_speed(mlxsw_sp_port,
&mlxsw_sp_port->max_speed);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to get maximum speed\n",
mlxsw_sp_port->local_port);
goto err_max_speed_get;
}
err = mlxsw_sp_port_max_mtu_get(mlxsw_sp_port, &mlxsw_sp_port->max_mtu);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to get maximum MTU\n",
mlxsw_sp_port->local_port);
goto err_port_max_mtu_get;
}
err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n",
mlxsw_sp_port->local_port);
goto err_port_mtu_set;
}
err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
if (err)
goto err_port_admin_status_set;
err = mlxsw_sp_port_buffers_init(mlxsw_sp_port);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n",
mlxsw_sp_port->local_port);
goto err_port_buffers_init;
}
err = mlxsw_sp_port_ets_init(mlxsw_sp_port);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n",
mlxsw_sp_port->local_port);
goto err_port_ets_init;
}
err = mlxsw_sp_port_tc_mc_mode_set(mlxsw_sp_port, true);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize TC MC mode\n",
mlxsw_sp_port->local_port);
goto err_port_tc_mc_mode;
}
/* ETS and buffers must be initialized before DCB. */
err = mlxsw_sp_port_dcb_init(mlxsw_sp_port);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n",
mlxsw_sp_port->local_port);
goto err_port_dcb_init;
}
err = mlxsw_sp_port_fids_init(mlxsw_sp_port);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize FIDs\n",
mlxsw_sp_port->local_port);
goto err_port_fids_init;
}
err = mlxsw_sp_tc_qdisc_init(mlxsw_sp_port);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize TC qdiscs\n",
mlxsw_sp_port->local_port);
goto err_port_qdiscs_init;
}
err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, 0, VLAN_N_VID - 1, false,
false);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to clear VLAN filter\n",
mlxsw_sp_port->local_port);
goto err_port_vlan_clear;
}
err = mlxsw_sp_port_nve_init(mlxsw_sp_port);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize NVE\n",
mlxsw_sp_port->local_port);
goto err_port_nve_init;
}
err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID,
ETH_P_8021Q);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set PVID\n",
mlxsw_sp_port->local_port);
goto err_port_pvid_set;
}
mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_create(mlxsw_sp_port,
MLXSW_SP_DEFAULT_VID);
if (IS_ERR(mlxsw_sp_port_vlan)) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to create VID 1\n",
mlxsw_sp_port->local_port);
err = PTR_ERR(mlxsw_sp_port_vlan);
goto err_port_vlan_create;
}
mlxsw_sp_port->default_vlan = mlxsw_sp_port_vlan;
/* Set SPVC.et0=true and SPVC.et1=false to make the local port to treat
* only packets with 802.1q header as tagged packets.
*/
err = mlxsw_sp_port_vlan_classification_set(mlxsw_sp_port, false, true);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set default VLAN classification\n",
local_port);
goto err_port_vlan_classification_set;
}
INIT_DELAYED_WORK(&mlxsw_sp_port->ptp.shaper_dw,
mlxsw_sp->ptp_ops->shaper_work);
mlxsw_sp->ports[local_port] = mlxsw_sp_port;
err = mlxsw_sp_port_overheat_init_val_set(mlxsw_sp_port);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set overheat initial value\n",
mlxsw_sp_port->local_port);
goto err_port_overheat_init_val_set;
}
err = register_netdev(dev);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n",
mlxsw_sp_port->local_port);
goto err_register_netdev;
}
mlxsw_core_port_eth_set(mlxsw_sp->core, mlxsw_sp_port->local_port,
mlxsw_sp_port, dev);
mlxsw_core_schedule_dw(&mlxsw_sp_port->periodic_hw_stats.update_dw, 0);
return 0;
err_register_netdev:
err_port_overheat_init_val_set:
mlxsw_sp_port_vlan_classification_set(mlxsw_sp_port, true, true);
err_port_vlan_classification_set:
mlxsw_sp->ports[local_port] = NULL;
mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan);
err_port_vlan_create:
err_port_pvid_set:
mlxsw_sp_port_nve_fini(mlxsw_sp_port);
err_port_nve_init:
err_port_vlan_clear:
mlxsw_sp_tc_qdisc_fini(mlxsw_sp_port);
err_port_qdiscs_init:
mlxsw_sp_port_fids_fini(mlxsw_sp_port);
err_port_fids_init:
mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
err_port_dcb_init:
mlxsw_sp_port_tc_mc_mode_set(mlxsw_sp_port, false);
err_port_tc_mc_mode:
err_port_ets_init:
mlxsw_sp_port_buffers_fini(mlxsw_sp_port);
err_port_buffers_init:
err_port_admin_status_set:
err_port_mtu_set:
err_port_max_mtu_get:
err_max_speed_get:
err_port_speed_by_width_set:
err_port_system_port_mapping_set:
err_dev_addr_init:
free_percpu(mlxsw_sp_port->pcpu_stats);
err_alloc_stats:
free_netdev(dev);
err_alloc_etherdev:
mlxsw_core_port_fini(mlxsw_sp->core, local_port);
err_core_port_init:
err_port_label_info_get:
mlxsw_sp_port_swid_set(mlxsw_sp, local_port,
MLXSW_PORT_SWID_DISABLED_PORT);
err_port_swid_set:
mlxsw_sp_port_module_unmap(mlxsw_sp, local_port, port_mapping->module);
return err;
}
static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
u8 module = mlxsw_sp_port->mapping.module;
cancel_delayed_work_sync(&mlxsw_sp_port->periodic_hw_stats.update_dw);
cancel_delayed_work_sync(&mlxsw_sp_port->ptp.shaper_dw);
mlxsw_sp_port_ptp_clear(mlxsw_sp_port);
mlxsw_core_port_clear(mlxsw_sp->core, local_port, mlxsw_sp);
unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
mlxsw_sp_port_vlan_classification_set(mlxsw_sp_port, true, true);
mlxsw_sp->ports[local_port] = NULL;
mlxsw_sp_port_vlan_flush(mlxsw_sp_port, true);
mlxsw_sp_port_nve_fini(mlxsw_sp_port);
mlxsw_sp_tc_qdisc_fini(mlxsw_sp_port);
mlxsw_sp_port_fids_fini(mlxsw_sp_port);
mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
mlxsw_sp_port_tc_mc_mode_set(mlxsw_sp_port, false);
mlxsw_sp_port_buffers_fini(mlxsw_sp_port);
free_percpu(mlxsw_sp_port->pcpu_stats);
WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vlans_list));
free_netdev(mlxsw_sp_port->dev);
mlxsw_core_port_fini(mlxsw_sp->core, local_port);
mlxsw_sp_port_swid_set(mlxsw_sp, local_port,
MLXSW_PORT_SWID_DISABLED_PORT);
mlxsw_sp_port_module_unmap(mlxsw_sp, local_port, module);
}
static int mlxsw_sp_cpu_port_create(struct mlxsw_sp *mlxsw_sp)
{
struct mlxsw_sp_port *mlxsw_sp_port;
int err;
mlxsw_sp_port = kzalloc(sizeof(*mlxsw_sp_port), GFP_KERNEL);
if (!mlxsw_sp_port)
return -ENOMEM;
mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
mlxsw_sp_port->local_port = MLXSW_PORT_CPU_PORT;
err = mlxsw_core_cpu_port_init(mlxsw_sp->core,
mlxsw_sp_port,
mlxsw_sp->base_mac,
sizeof(mlxsw_sp->base_mac));
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize core CPU port\n");
goto err_core_cpu_port_init;
}
mlxsw_sp->ports[MLXSW_PORT_CPU_PORT] = mlxsw_sp_port;
return 0;
err_core_cpu_port_init:
kfree(mlxsw_sp_port);
return err;
}
static void mlxsw_sp_cpu_port_remove(struct mlxsw_sp *mlxsw_sp)
{
struct mlxsw_sp_port *mlxsw_sp_port =
mlxsw_sp->ports[MLXSW_PORT_CPU_PORT];
mlxsw_core_cpu_port_fini(mlxsw_sp->core);
mlxsw_sp->ports[MLXSW_PORT_CPU_PORT] = NULL;
kfree(mlxsw_sp_port);
}
static bool mlxsw_sp_local_port_valid(u8 local_port)
{
return local_port != MLXSW_PORT_CPU_PORT;
}
static bool mlxsw_sp_port_created(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
if (!mlxsw_sp_local_port_valid(local_port))
return false;
return mlxsw_sp->ports[local_port] != NULL;
}
static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp)
{
int i;
for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++)
if (mlxsw_sp_port_created(mlxsw_sp, i))
mlxsw_sp_port_remove(mlxsw_sp, i);
mlxsw_sp_cpu_port_remove(mlxsw_sp);
kfree(mlxsw_sp->ports);
mlxsw_sp->ports = NULL;
}
static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
{
unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
struct mlxsw_sp_port_mapping *port_mapping;
size_t alloc_size;
int i;
int err;
alloc_size = sizeof(struct mlxsw_sp_port *) * max_ports;
mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL);
if (!mlxsw_sp->ports)
return -ENOMEM;
err = mlxsw_sp_cpu_port_create(mlxsw_sp);
if (err)
goto err_cpu_port_create;
for (i = 1; i < max_ports; i++) {
port_mapping = mlxsw_sp->port_mapping[i];
if (!port_mapping)
continue;
err = mlxsw_sp_port_create(mlxsw_sp, i, false, port_mapping);
if (err)
goto err_port_create;
}
return 0;
err_port_create:
for (i--; i >= 1; i--)
if (mlxsw_sp_port_created(mlxsw_sp, i))
mlxsw_sp_port_remove(mlxsw_sp, i);
mlxsw_sp_cpu_port_remove(mlxsw_sp);
err_cpu_port_create:
kfree(mlxsw_sp->ports);
mlxsw_sp->ports = NULL;
return err;
}
static int mlxsw_sp_port_module_info_init(struct mlxsw_sp *mlxsw_sp)
{
unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
struct mlxsw_sp_port_mapping port_mapping;
int i;
int err;
mlxsw_sp->port_mapping = kcalloc(max_ports,
sizeof(struct mlxsw_sp_port_mapping *),
GFP_KERNEL);
if (!mlxsw_sp->port_mapping)
return -ENOMEM;
for (i = 1; i < max_ports; i++) {
if (mlxsw_core_port_is_xm(mlxsw_sp->core, i))
continue;
err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &port_mapping);
if (err)
goto err_port_module_info_get;
if (!port_mapping.width)
continue;
mlxsw_sp->port_mapping[i] = kmemdup(&port_mapping,
sizeof(port_mapping),
GFP_KERNEL);
if (!mlxsw_sp->port_mapping[i]) {
err = -ENOMEM;
goto err_port_module_info_dup;
}
}
return 0;
err_port_module_info_get:
err_port_module_info_dup:
for (i--; i >= 1; i--)
kfree(mlxsw_sp->port_mapping[i]);
kfree(mlxsw_sp->port_mapping);
return err;
}
static void mlxsw_sp_port_module_info_fini(struct mlxsw_sp *mlxsw_sp)
{
int i;
for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++)
kfree(mlxsw_sp->port_mapping[i]);
kfree(mlxsw_sp->port_mapping);
}
static int
mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_port_mapping *port_mapping,
unsigned int count, const char *pmtdb_pl)
{
struct mlxsw_sp_port_mapping split_port_mapping;
int err, i;
split_port_mapping = *port_mapping;
split_port_mapping.width /= count;
for (i = 0; i < count; i++) {
u8 s_local_port = mlxsw_reg_pmtdb_port_num_get(pmtdb_pl, i);
if (!mlxsw_sp_local_port_valid(s_local_port))
continue;
err = mlxsw_sp_port_create(mlxsw_sp, s_local_port,
true, &split_port_mapping);
if (err)
goto err_port_create;
split_port_mapping.lane += split_port_mapping.width;
}
return 0;
err_port_create:
for (i--; i >= 0; i--) {
u8 s_local_port = mlxsw_reg_pmtdb_port_num_get(pmtdb_pl, i);
if (mlxsw_sp_port_created(mlxsw_sp, s_local_port))
mlxsw_sp_port_remove(mlxsw_sp, s_local_port);
}
return err;
}
static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp *mlxsw_sp,
unsigned int count,
const char *pmtdb_pl)
{
struct mlxsw_sp_port_mapping *port_mapping;
int i;
/* Go over original unsplit ports in the gap and recreate them. */
for (i = 0; i < count; i++) {
u8 local_port = mlxsw_reg_pmtdb_port_num_get(pmtdb_pl, i);
port_mapping = mlxsw_sp->port_mapping[local_port];
if (!port_mapping || !mlxsw_sp_local_port_valid(local_port))
continue;
mlxsw_sp_port_create(mlxsw_sp, local_port,
false, port_mapping);
}
}
static struct mlxsw_sp_port *
mlxsw_sp_port_get_by_local_port(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
if (mlxsw_sp->ports && mlxsw_sp->ports[local_port])
return mlxsw_sp->ports[local_port];
return NULL;
}
static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port,
unsigned int count,
struct netlink_ext_ack *extack)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
struct mlxsw_sp_port_mapping port_mapping;
struct mlxsw_sp_port *mlxsw_sp_port;
enum mlxsw_reg_pmtdb_status status;
char pmtdb_pl[MLXSW_REG_PMTDB_LEN];
int i;
int err;
mlxsw_sp_port = mlxsw_sp_port_get_by_local_port(mlxsw_sp, local_port);
if (!mlxsw_sp_port) {
dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
local_port);
NL_SET_ERR_MSG_MOD(extack, "Port number does not exist");
return -EINVAL;
}
if (mlxsw_sp_port->split) {
NL_SET_ERR_MSG_MOD(extack, "Port is already split");
return -EINVAL;
}
mlxsw_reg_pmtdb_pack(pmtdb_pl, 0, mlxsw_sp_port->mapping.module,
mlxsw_sp_port->mapping.module_width / count,
count);
err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(pmtdb), pmtdb_pl);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Failed to query split info");
return err;
}
status = mlxsw_reg_pmtdb_status_get(pmtdb_pl);
if (status != MLXSW_REG_PMTDB_STATUS_SUCCESS) {
NL_SET_ERR_MSG_MOD(extack, "Unsupported split configuration");
return -EINVAL;
}
port_mapping = mlxsw_sp_port->mapping;
for (i = 0; i < count; i++) {
u8 s_local_port = mlxsw_reg_pmtdb_port_num_get(pmtdb_pl, i);
if (mlxsw_sp_port_created(mlxsw_sp, s_local_port))
mlxsw_sp_port_remove(mlxsw_sp, s_local_port);
}
err = mlxsw_sp_port_split_create(mlxsw_sp, &port_mapping,
count, pmtdb_pl);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Failed to create split ports\n");
goto err_port_split_create;
}
return 0;
err_port_split_create:
mlxsw_sp_port_unsplit_create(mlxsw_sp, count, pmtdb_pl);
return err;
}
static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port,
struct netlink_ext_ack *extack)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
struct mlxsw_sp_port *mlxsw_sp_port;
char pmtdb_pl[MLXSW_REG_PMTDB_LEN];
unsigned int count;
int i;
int err;
mlxsw_sp_port = mlxsw_sp_port_get_by_local_port(mlxsw_sp, local_port);
if (!mlxsw_sp_port) {
dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
local_port);
NL_SET_ERR_MSG_MOD(extack, "Port number does not exist");
return -EINVAL;
}
if (!mlxsw_sp_port->split) {
NL_SET_ERR_MSG_MOD(extack, "Port was not split");
return -EINVAL;
}
count = mlxsw_sp_port->mapping.module_width /
mlxsw_sp_port->mapping.width;
mlxsw_reg_pmtdb_pack(pmtdb_pl, 0, mlxsw_sp_port->mapping.module,
mlxsw_sp_port->mapping.module_width / count,
count);
err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(pmtdb), pmtdb_pl);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Failed to query split info");
return err;
}
for (i = 0; i < count; i++) {
u8 s_local_port = mlxsw_reg_pmtdb_port_num_get(pmtdb_pl, i);
if (mlxsw_sp_port_created(mlxsw_sp, s_local_port))
mlxsw_sp_port_remove(mlxsw_sp, s_local_port);
}
mlxsw_sp_port_unsplit_create(mlxsw_sp, count, pmtdb_pl);
return 0;
}
static void
mlxsw_sp_port_down_wipe_counters(struct mlxsw_sp_port *mlxsw_sp_port)
{
int i;
for (i = 0; i < TC_MAX_QUEUE; i++)
mlxsw_sp_port->periodic_hw_stats.xstats.backlog[i] = 0;
}
static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
char *pude_pl, void *priv)
{
struct mlxsw_sp *mlxsw_sp = priv;
struct mlxsw_sp_port *mlxsw_sp_port;
enum mlxsw_reg_pude_oper_status status;
unsigned int max_ports;
u8 local_port;
max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
local_port = mlxsw_reg_pude_local_port_get(pude_pl);
if (WARN_ON_ONCE(local_port >= max_ports))
return;
mlxsw_sp_port = mlxsw_sp->ports[local_port];
if (!mlxsw_sp_port)
return;
status = mlxsw_reg_pude_oper_status_get(pude_pl);
if (status == MLXSW_PORT_OPER_STATUS_UP) {
netdev_info(mlxsw_sp_port->dev, "link up\n");
netif_carrier_on(mlxsw_sp_port->dev);
mlxsw_core_schedule_dw(&mlxsw_sp_port->ptp.shaper_dw, 0);
} else {
netdev_info(mlxsw_sp_port->dev, "link down\n");
netif_carrier_off(mlxsw_sp_port->dev);
mlxsw_sp_port_down_wipe_counters(mlxsw_sp_port);
}
}
static void mlxsw_sp1_ptp_fifo_event_func(struct mlxsw_sp *mlxsw_sp,
char *mtpptr_pl, bool ingress)
{
u8 local_port;
u8 num_rec;
int i;
local_port = mlxsw_reg_mtpptr_local_port_get(mtpptr_pl);
num_rec = mlxsw_reg_mtpptr_num_rec_get(mtpptr_pl);
for (i = 0; i < num_rec; i++) {
u8 domain_number;
u8 message_type;
u16 sequence_id;
u64 timestamp;
mlxsw_reg_mtpptr_unpack(mtpptr_pl, i, &message_type,
&domain_number, &sequence_id,
&timestamp);
mlxsw_sp1_ptp_got_timestamp(mlxsw_sp, ingress, local_port,
message_type, domain_number,
sequence_id, timestamp);
}
}
static void mlxsw_sp1_ptp_ing_fifo_event_func(const struct mlxsw_reg_info *reg,
char *mtpptr_pl, void *priv)
{
struct mlxsw_sp *mlxsw_sp = priv;
mlxsw_sp1_ptp_fifo_event_func(mlxsw_sp, mtpptr_pl, true);
}
static void mlxsw_sp1_ptp_egr_fifo_event_func(const struct mlxsw_reg_info *reg,
char *mtpptr_pl, void *priv)
{
struct mlxsw_sp *mlxsw_sp = priv;
mlxsw_sp1_ptp_fifo_event_func(mlxsw_sp, mtpptr_pl, false);
}
void mlxsw_sp_rx_listener_no_mark_func(struct sk_buff *skb,
u8 local_port, void *priv)
{
struct mlxsw_sp *mlxsw_sp = priv;
struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
if (unlikely(!mlxsw_sp_port)) {
dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n",
local_port);
return;
}
skb->dev = mlxsw_sp_port->dev;
pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
u64_stats_update_begin(&pcpu_stats->syncp);
pcpu_stats->rx_packets++;
pcpu_stats->rx_bytes += skb->len;
u64_stats_update_end(&pcpu_stats->syncp);
skb->protocol = eth_type_trans(skb, skb->dev);
netif_receive_skb(skb);
}
static void mlxsw_sp_rx_listener_mark_func(struct sk_buff *skb, u8 local_port,
void *priv)
{
skb->offload_fwd_mark = 1;
return mlxsw_sp_rx_listener_no_mark_func(skb, local_port, priv);
}
static void mlxsw_sp_rx_listener_l3_mark_func(struct sk_buff *skb,
u8 local_port, void *priv)
{
skb->offload_l3_fwd_mark = 1;
skb->offload_fwd_mark = 1;
return mlxsw_sp_rx_listener_no_mark_func(skb, local_port, priv);
}
void mlxsw_sp_ptp_receive(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
u8 local_port)
{
mlxsw_sp->ptp_ops->receive(mlxsw_sp, skb, local_port);
}
#define MLXSW_SP_RXL_NO_MARK(_trap_id, _action, _trap_group, _is_ctrl) \
MLXSW_RXL(mlxsw_sp_rx_listener_no_mark_func, _trap_id, _action, \
_is_ctrl, SP_##_trap_group, DISCARD)
#define MLXSW_SP_RXL_MARK(_trap_id, _action, _trap_group, _is_ctrl) \
MLXSW_RXL(mlxsw_sp_rx_listener_mark_func, _trap_id, _action, \
_is_ctrl, SP_##_trap_group, DISCARD)
#define MLXSW_SP_RXL_L3_MARK(_trap_id, _action, _trap_group, _is_ctrl) \
MLXSW_RXL(mlxsw_sp_rx_listener_l3_mark_func, _trap_id, _action, \
_is_ctrl, SP_##_trap_group, DISCARD)
#define MLXSW_SP_EVENTL(_func, _trap_id) \
MLXSW_EVENTL(_func, _trap_id, SP_EVENT)
static const struct mlxsw_listener mlxsw_sp_listener[] = {
/* Events */
MLXSW_SP_EVENTL(mlxsw_sp_pude_event_func, PUDE),
/* L2 traps */
MLXSW_SP_RXL_NO_MARK(FID_MISS, TRAP_TO_CPU, FID_MISS, false),
/* L3 traps */
MLXSW_SP_RXL_MARK(IPV6_UNSPECIFIED_ADDRESS, TRAP_TO_CPU, ROUTER_EXP,
false),
MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_SRC, TRAP_TO_CPU, ROUTER_EXP, false),
MLXSW_SP_RXL_MARK(IPV6_MC_LINK_LOCAL_DEST, TRAP_TO_CPU, ROUTER_EXP,
false),
MLXSW_SP_RXL_NO_MARK(DISCARD_ING_ROUTER_SIP_CLASS_E, FORWARD,
ROUTER_EXP, false),
MLXSW_SP_RXL_NO_MARK(DISCARD_ING_ROUTER_MC_DMAC, FORWARD,
ROUTER_EXP, false),
MLXSW_SP_RXL_NO_MARK(DISCARD_ING_ROUTER_SIP_DIP, FORWARD,
ROUTER_EXP, false),
MLXSW_SP_RXL_NO_MARK(DISCARD_ING_ROUTER_DIP_LINK_LOCAL, FORWARD,
ROUTER_EXP, false),
/* Multicast Router Traps */
MLXSW_SP_RXL_MARK(ACL1, TRAP_TO_CPU, MULTICAST, false),
MLXSW_SP_RXL_L3_MARK(ACL2, TRAP_TO_CPU, MULTICAST, false),
/* NVE traps */
MLXSW_SP_RXL_MARK(NVE_ENCAP_ARP, TRAP_TO_CPU, NEIGH_DISCOVERY, false),
};
static const struct mlxsw_listener mlxsw_sp1_listener[] = {
/* Events */
MLXSW_EVENTL(mlxsw_sp1_ptp_egr_fifo_event_func, PTP_EGR_FIFO, SP_PTP0),
MLXSW_EVENTL(mlxsw_sp1_ptp_ing_fifo_event_func, PTP_ING_FIFO, SP_PTP0),
};
static int mlxsw_sp_cpu_policers_set(struct mlxsw_core *mlxsw_core)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
char qpcr_pl[MLXSW_REG_QPCR_LEN];
enum mlxsw_reg_qpcr_ir_units ir_units;
int max_cpu_policers;
bool is_bytes;
u8 burst_size;
u32 rate;
int i, err;
if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_CPU_POLICERS))
return -EIO;
max_cpu_policers = MLXSW_CORE_RES_GET(mlxsw_core, MAX_CPU_POLICERS);
ir_units = MLXSW_REG_QPCR_IR_UNITS_M;
for (i = 0; i < max_cpu_policers; i++) {
is_bytes = false;
switch (i) {
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_FID_MISS:
rate = 1024;
burst_size = 7;
break;
default:
continue;
}
__set_bit(i, mlxsw_sp->trap->policers_usage);
mlxsw_reg_qpcr_pack(qpcr_pl, i, ir_units, is_bytes, rate,
burst_size);
err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(qpcr), qpcr_pl);
if (err)
return err;
}
return 0;
}
static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core)
{
char htgt_pl[MLXSW_REG_HTGT_LEN];
enum mlxsw_reg_htgt_trap_group i;
int max_cpu_policers;
int max_trap_groups;
u8 priority, tc;
u16 policer_id;
int err;
if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_TRAP_GROUPS))
return -EIO;
max_trap_groups = MLXSW_CORE_RES_GET(mlxsw_core, MAX_TRAP_GROUPS);
max_cpu_policers = MLXSW_CORE_RES_GET(mlxsw_core, MAX_CPU_POLICERS);
for (i = 0; i < max_trap_groups; i++) {
policer_id = i;
switch (i) {
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_FID_MISS:
priority = 1;
tc = 1;
break;
case MLXSW_REG_HTGT_TRAP_GROUP_SP_EVENT:
priority = MLXSW_REG_HTGT_DEFAULT_PRIORITY;
tc = MLXSW_REG_HTGT_DEFAULT_TC;
policer_id = MLXSW_REG_HTGT_INVALID_POLICER;
break;
default:
continue;
}
if (max_cpu_policers <= policer_id &&
policer_id != MLXSW_REG_HTGT_INVALID_POLICER)
return -EIO;
mlxsw_reg_htgt_pack(htgt_pl, i, policer_id, priority, tc);
err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl);
if (err)
return err;
}
return 0;
}
static int mlxsw_sp_traps_register(struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_listener listeners[],
size_t listeners_count)
{
int i;
int err;
for (i = 0; i < listeners_count; i++) {
err = mlxsw_core_trap_register(mlxsw_sp->core,
&listeners[i],
mlxsw_sp);
if (err)
goto err_listener_register;
}
return 0;
err_listener_register:
for (i--; i >= 0; i--) {
mlxsw_core_trap_unregister(mlxsw_sp->core,
&listeners[i],
mlxsw_sp);
}
return err;
}
static void mlxsw_sp_traps_unregister(struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_listener listeners[],
size_t listeners_count)
{
int i;
for (i = 0; i < listeners_count; i++) {
mlxsw_core_trap_unregister(mlxsw_sp->core,
&listeners[i],
mlxsw_sp);
}
}
static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
{
struct mlxsw_sp_trap *trap;
u64 max_policers;
int err;
if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_CPU_POLICERS))
return -EIO;
max_policers = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_CPU_POLICERS);
trap = kzalloc(struct_size(trap, policers_usage,
BITS_TO_LONGS(max_policers)), GFP_KERNEL);
if (!trap)
return -ENOMEM;
trap->max_policers = max_policers;
mlxsw_sp->trap = trap;
err = mlxsw_sp_cpu_policers_set(mlxsw_sp->core);
if (err)
goto err_cpu_policers_set;
err = mlxsw_sp_trap_groups_set(mlxsw_sp->core);
if (err)
goto err_trap_groups_set;
err = mlxsw_sp_traps_register(mlxsw_sp, mlxsw_sp_listener,
ARRAY_SIZE(mlxsw_sp_listener));
if (err)
goto err_traps_register;
err = mlxsw_sp_traps_register(mlxsw_sp, mlxsw_sp->listeners,
mlxsw_sp->listeners_count);
if (err)
goto err_extra_traps_init;
return 0;
err_extra_traps_init:
mlxsw_sp_traps_unregister(mlxsw_sp, mlxsw_sp_listener,
ARRAY_SIZE(mlxsw_sp_listener));
err_traps_register:
err_trap_groups_set:
err_cpu_policers_set:
kfree(trap);
return err;
}
static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
{
mlxsw_sp_traps_unregister(mlxsw_sp, mlxsw_sp->listeners,
mlxsw_sp->listeners_count);
mlxsw_sp_traps_unregister(mlxsw_sp, mlxsw_sp_listener,
ARRAY_SIZE(mlxsw_sp_listener));
kfree(mlxsw_sp->trap);
}
#define MLXSW_SP_LAG_SEED_INIT 0xcafecafe
static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)
{
char slcr_pl[MLXSW_REG_SLCR_LEN];
u32 seed;
int err;
seed = jhash(mlxsw_sp->base_mac, sizeof(mlxsw_sp->base_mac),
MLXSW_SP_LAG_SEED_INIT);
mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC |
MLXSW_REG_SLCR_LAG_HASH_DMAC |
MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE |
MLXSW_REG_SLCR_LAG_HASH_VLANID |
MLXSW_REG_SLCR_LAG_HASH_SIP |
MLXSW_REG_SLCR_LAG_HASH_DIP |
MLXSW_REG_SLCR_LAG_HASH_SPORT |
MLXSW_REG_SLCR_LAG_HASH_DPORT |
MLXSW_REG_SLCR_LAG_HASH_IPPROTO, seed);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl);
if (err)
return err;
if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG) ||
!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG_MEMBERS))
return -EIO;
mlxsw_sp->lags = kcalloc(MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG),
sizeof(struct mlxsw_sp_upper),
GFP_KERNEL);
if (!mlxsw_sp->lags)
return -ENOMEM;
return 0;
}
static void mlxsw_sp_lag_fini(struct mlxsw_sp *mlxsw_sp)
{
kfree(mlxsw_sp->lags);
}
static int mlxsw_sp_basic_trap_groups_set(struct mlxsw_core *mlxsw_core)
{
char htgt_pl[MLXSW_REG_HTGT_LEN];
int err;
mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_EMAD,
MLXSW_REG_HTGT_INVALID_POLICER,
MLXSW_REG_HTGT_DEFAULT_PRIORITY,
MLXSW_REG_HTGT_DEFAULT_TC);
err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl);
if (err)
return err;
mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_MFDE,
MLXSW_REG_HTGT_INVALID_POLICER,
MLXSW_REG_HTGT_DEFAULT_PRIORITY,
MLXSW_REG_HTGT_DEFAULT_TC);
err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl);
if (err)
return err;
mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_MTWE,
MLXSW_REG_HTGT_INVALID_POLICER,
MLXSW_REG_HTGT_DEFAULT_PRIORITY,
MLXSW_REG_HTGT_DEFAULT_TC);
err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl);
if (err)
return err;
mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_PMPE,
MLXSW_REG_HTGT_INVALID_POLICER,
MLXSW_REG_HTGT_DEFAULT_PRIORITY,
MLXSW_REG_HTGT_DEFAULT_TC);
return mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl);
}
static const struct mlxsw_sp_ptp_ops mlxsw_sp1_ptp_ops = {
.clock_init = mlxsw_sp1_ptp_clock_init,
.clock_fini = mlxsw_sp1_ptp_clock_fini,
.init = mlxsw_sp1_ptp_init,
.fini = mlxsw_sp1_ptp_fini,
.receive = mlxsw_sp1_ptp_receive,
.transmitted = mlxsw_sp1_ptp_transmitted,
.hwtstamp_get = mlxsw_sp1_ptp_hwtstamp_get,
.hwtstamp_set = mlxsw_sp1_ptp_hwtstamp_set,
.shaper_work = mlxsw_sp1_ptp_shaper_work,
.get_ts_info = mlxsw_sp1_ptp_get_ts_info,
.get_stats_count = mlxsw_sp1_get_stats_count,
.get_stats_strings = mlxsw_sp1_get_stats_strings,
.get_stats = mlxsw_sp1_get_stats,
};
static const struct mlxsw_sp_ptp_ops mlxsw_sp2_ptp_ops = {
.clock_init = mlxsw_sp2_ptp_clock_init,
.clock_fini = mlxsw_sp2_ptp_clock_fini,
.init = mlxsw_sp2_ptp_init,
.fini = mlxsw_sp2_ptp_fini,
.receive = mlxsw_sp2_ptp_receive,
.transmitted = mlxsw_sp2_ptp_transmitted,
.hwtstamp_get = mlxsw_sp2_ptp_hwtstamp_get,
.hwtstamp_set = mlxsw_sp2_ptp_hwtstamp_set,
.shaper_work = mlxsw_sp2_ptp_shaper_work,
.get_ts_info = mlxsw_sp2_ptp_get_ts_info,
.get_stats_count = mlxsw_sp2_get_stats_count,
.get_stats_strings = mlxsw_sp2_get_stats_strings,
.get_stats = mlxsw_sp2_get_stats,
};
struct mlxsw_sp_sample_trigger_node {
struct mlxsw_sp_sample_trigger trigger;
struct mlxsw_sp_sample_params params;
struct rhash_head ht_node;
struct rcu_head rcu;
refcount_t refcount;
};
static const struct rhashtable_params mlxsw_sp_sample_trigger_ht_params = {
.key_offset = offsetof(struct mlxsw_sp_sample_trigger_node, trigger),
.head_offset = offsetof(struct mlxsw_sp_sample_trigger_node, ht_node),
.key_len = sizeof(struct mlxsw_sp_sample_trigger),
.automatic_shrinking = true,
};
static void
mlxsw_sp_sample_trigger_key_init(struct mlxsw_sp_sample_trigger *key,
const struct mlxsw_sp_sample_trigger *trigger)
{
memset(key, 0, sizeof(*key));
key->type = trigger->type;
key->local_port = trigger->local_port;
}
/* RCU read lock must be held */
struct mlxsw_sp_sample_params *
mlxsw_sp_sample_trigger_params_lookup(struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_sp_sample_trigger *trigger)
{
struct mlxsw_sp_sample_trigger_node *trigger_node;
struct mlxsw_sp_sample_trigger key;
mlxsw_sp_sample_trigger_key_init(&key, trigger);
trigger_node = rhashtable_lookup(&mlxsw_sp->sample_trigger_ht, &key,
mlxsw_sp_sample_trigger_ht_params);
if (!trigger_node)
return NULL;
return &trigger_node->params;
}
static int
mlxsw_sp_sample_trigger_node_init(struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_sp_sample_trigger *trigger,
const struct mlxsw_sp_sample_params *params)
{
struct mlxsw_sp_sample_trigger_node *trigger_node;
int err;
trigger_node = kzalloc(sizeof(*trigger_node), GFP_KERNEL);
if (!trigger_node)
return -ENOMEM;
trigger_node->trigger = *trigger;
trigger_node->params = *params;
refcount_set(&trigger_node->refcount, 1);
err = rhashtable_insert_fast(&mlxsw_sp->sample_trigger_ht,
&trigger_node->ht_node,
mlxsw_sp_sample_trigger_ht_params);
if (err)
goto err_rhashtable_insert;
return 0;
err_rhashtable_insert:
kfree(trigger_node);
return err;
}
static void
mlxsw_sp_sample_trigger_node_fini(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_sample_trigger_node *trigger_node)
{
rhashtable_remove_fast(&mlxsw_sp->sample_trigger_ht,
&trigger_node->ht_node,
mlxsw_sp_sample_trigger_ht_params);
kfree_rcu(trigger_node, rcu);
}
int
mlxsw_sp_sample_trigger_params_set(struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_sp_sample_trigger *trigger,
const struct mlxsw_sp_sample_params *params,
struct netlink_ext_ack *extack)
{
struct mlxsw_sp_sample_trigger_node *trigger_node;
struct mlxsw_sp_sample_trigger key;
ASSERT_RTNL();
mlxsw_sp_sample_trigger_key_init(&key, trigger);
trigger_node = rhashtable_lookup_fast(&mlxsw_sp->sample_trigger_ht,
&key,
mlxsw_sp_sample_trigger_ht_params);
if (!trigger_node)
return mlxsw_sp_sample_trigger_node_init(mlxsw_sp, &key,
params);
if (trigger_node->trigger.local_port) {
NL_SET_ERR_MSG_MOD(extack, "Sampling already enabled on port");
return -EINVAL;
}
if (trigger_node->params.psample_group != params->psample_group ||
trigger_node->params.truncate != params->truncate ||
trigger_node->params.rate != params->rate ||
trigger_node->params.trunc_size != params->trunc_size) {
NL_SET_ERR_MSG_MOD(extack, "Sampling parameters do not match for an existing sampling trigger");
return -EINVAL;
}
refcount_inc(&trigger_node->refcount);
return 0;
}
void
mlxsw_sp_sample_trigger_params_unset(struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_sp_sample_trigger *trigger)
{
struct mlxsw_sp_sample_trigger_node *trigger_node;
struct mlxsw_sp_sample_trigger key;
ASSERT_RTNL();
mlxsw_sp_sample_trigger_key_init(&key, trigger);
trigger_node = rhashtable_lookup_fast(&mlxsw_sp->sample_trigger_ht,
&key,
mlxsw_sp_sample_trigger_ht_params);
if (!trigger_node)
return;
if (!refcount_dec_and_test(&trigger_node->refcount))
return;
mlxsw_sp_sample_trigger_node_fini(mlxsw_sp, trigger_node);
}
static int mlxsw_sp_netdevice_event(struct notifier_block *unused,
unsigned long event, void *ptr);
#define MLXSW_SP_DEFAULT_PARSING_DEPTH 96
#define MLXSW_SP_INCREASED_PARSING_DEPTH 128
#define MLXSW_SP_DEFAULT_VXLAN_UDP_DPORT 4789
static void mlxsw_sp_parsing_init(struct mlxsw_sp *mlxsw_sp)
{
mlxsw_sp->parsing.parsing_depth = MLXSW_SP_DEFAULT_PARSING_DEPTH;
mlxsw_sp->parsing.vxlan_udp_dport = MLXSW_SP_DEFAULT_VXLAN_UDP_DPORT;
mutex_init(&mlxsw_sp->parsing.lock);
}
static void mlxsw_sp_parsing_fini(struct mlxsw_sp *mlxsw_sp)
{
mutex_destroy(&mlxsw_sp->parsing.lock);
}
static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
const struct mlxsw_bus_info *mlxsw_bus_info,
struct netlink_ext_ack *extack)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
int err;
mlxsw_sp->core = mlxsw_core;
mlxsw_sp->bus_info = mlxsw_bus_info;
mlxsw_sp_parsing_init(mlxsw_sp);
mlxsw_core_emad_string_tlv_enable(mlxsw_core);
err = mlxsw_sp_base_mac_get(mlxsw_sp);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n");
return err;