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Merge branch 'bnxt_en-updates-for-net-next'

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Michael Chan says:

====================
bnxt_en: Updates for net-next

The first patch converts the sw_stats field in the completion
ring structure to a pointer.  This allows the group of
completion rings using the same MSIX to share the same sw_stats
structure.  Prior to this, the correct completion ring must be
used to count packets.

The next four patches remove the RTNL lock when calling the RoCE
driver for asynchronous stop and start during error recovery and
firmware reset.  The RTNL ilock is replaced with a private mutex
used to synchronize RoCE register, unregister, stop, and start.

The last patch adds VF PCI IDs for the 5760X chips.

v2: Dropped patch #1 from v1.  Will work with David to get that
patch in separately.
====================

Link: https://lore.kernel.org/r/20240501003056.100607-1-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2024-05-02 07:27:23 -07:00
commit dcc6147253
6 changed files with 107 additions and 61 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

119
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View File

@ -137,6 +137,7 @@ static const struct {
[NETXTREME_E_VF_HV] = { "Broadcom NetXtreme-E Virtual Function for Hyper-V" },
[NETXTREME_E_P5_VF] = { "Broadcom BCM5750X NetXtreme-E Ethernet Virtual Function" },
[NETXTREME_E_P5_VF_HV] = { "Broadcom BCM5750X NetXtreme-E Virtual Function for Hyper-V" },
[NETXTREME_E_P7_VF] = { "Broadcom BCM5760X Virtual Function" },
};
static const struct pci_device_id bnxt_pci_tbl[] = {
@ -211,6 +212,7 @@ static const struct pci_device_id bnxt_pci_tbl[] = {
{ PCI_VDEVICE(BROADCOM, 0x1807), .driver_data = NETXTREME_E_P5_VF },
{ PCI_VDEVICE(BROADCOM, 0x1808), .driver_data = NETXTREME_E_P5_VF_HV },
{ PCI_VDEVICE(BROADCOM, 0x1809), .driver_data = NETXTREME_E_P5_VF_HV },
{ PCI_VDEVICE(BROADCOM, 0x1819), .driver_data = NETXTREME_E_P7_VF },
{ PCI_VDEVICE(BROADCOM, 0xd800), .driver_data = NETXTREME_S_VF },
#endif
{ 0 }
@ -294,7 +296,7 @@ static bool bnxt_vf_pciid(enum board_idx idx)
return (idx == NETXTREME_C_VF || idx == NETXTREME_E_VF ||
idx == NETXTREME_S_VF || idx == NETXTREME_C_VF_HV ||
idx == NETXTREME_E_VF_HV || idx == NETXTREME_E_P5_VF ||
idx == NETXTREME_E_P5_VF_HV);
idx == NETXTREME_E_P5_VF_HV || idx == NETXTREME_E_P7_VF);
}
#define DB_CP_REARM_FLAGS (DB_KEY_CP | DB_IDX_VALID)
@ -1811,7 +1813,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
skb = bnxt_copy_skb(bnapi, data_ptr, len, mapping);
if (!skb) {
bnxt_abort_tpa(cpr, idx, agg_bufs);
cpr->bnapi->cp_ring.sw_stats.rx.rx_oom_discards += 1;
cpr->sw_stats->rx.rx_oom_discards += 1;
return NULL;
}
} else {
@ -1821,7 +1823,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
new_data = __bnxt_alloc_rx_frag(bp, &new_mapping, GFP_ATOMIC);
if (!new_data) {
bnxt_abort_tpa(cpr, idx, agg_bufs);
cpr->bnapi->cp_ring.sw_stats.rx.rx_oom_discards += 1;
cpr->sw_stats->rx.rx_oom_discards += 1;
return NULL;
}
@ -1837,7 +1839,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
if (!skb) {
skb_free_frag(data);
bnxt_abort_tpa(cpr, idx, agg_bufs);
cpr->bnapi->cp_ring.sw_stats.rx.rx_oom_discards += 1;
cpr->sw_stats->rx.rx_oom_discards += 1;
return NULL;
}
skb_reserve(skb, bp->rx_offset);
@ -1848,7 +1850,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
skb = bnxt_rx_agg_pages_skb(bp, cpr, skb, idx, agg_bufs, true);
if (!skb) {
/* Page reuse already handled by bnxt_rx_pages(). */
cpr->bnapi->cp_ring.sw_stats.rx.rx_oom_discards += 1;
cpr->sw_stats->rx.rx_oom_discards += 1;
return NULL;
}
}
@ -2106,7 +2108,7 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
rc = -EIO;
if (rx_err & RX_CMPL_ERRORS_BUFFER_ERROR_MASK) {
bnapi->cp_ring.sw_stats.rx.rx_buf_errors++;
bnapi->cp_ring.sw_stats->rx.rx_buf_errors++;
if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS) &&
!(bp->fw_cap & BNXT_FW_CAP_RING_MONITOR)) {
netdev_warn_once(bp->dev, "RX buffer error %x\n",
@ -2222,7 +2224,7 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
} else {
if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L4_CS_ERR_BITS) {
if (dev->features & NETIF_F_RXCSUM)
bnapi->cp_ring.sw_stats.rx.rx_l4_csum_errors++;
bnapi->cp_ring.sw_stats->rx.rx_l4_csum_errors++;
}
}
@ -2259,7 +2261,7 @@ next_rx_no_prod_no_len:
return rc;
oom_next_rx:
cpr->bnapi->cp_ring.sw_stats.rx.rx_oom_discards += 1;
cpr->sw_stats->rx.rx_oom_discards += 1;
rc = -ENOMEM;
goto next_rx;
}
@ -2308,7 +2310,7 @@ static int bnxt_force_rx_discard(struct bnxt *bp,
}
rc = bnxt_rx_pkt(bp, cpr, raw_cons, event);
if (rc && rc != -EBUSY)
cpr->bnapi->cp_ring.sw_stats.rx.rx_netpoll_discards += 1;
cpr->sw_stats->rx.rx_netpoll_discards += 1;
return rc;
}
@ -3951,6 +3953,7 @@ static int bnxt_alloc_cp_rings(struct bnxt *bp)
if (rc)
return rc;
cpr2->bnapi = bnapi;
cpr2->sw_stats = cpr->sw_stats;
cpr2->cp_idx = k;
if (!k && rx) {
bp->rx_ring[i].rx_cpr = cpr2;
@ -4792,6 +4795,9 @@ static void bnxt_free_ring_stats(struct bnxt *bp)
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
bnxt_free_stats_mem(bp, &cpr->stats);
kfree(cpr->sw_stats);
cpr->sw_stats = NULL;
}
}
@ -4806,6 +4812,10 @@ static int bnxt_alloc_stats(struct bnxt *bp)
struct bnxt_napi *bnapi = bp->bnapi[i];
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
cpr->sw_stats = kzalloc(sizeof(*cpr->sw_stats), GFP_KERNEL);
if (!cpr->sw_stats)
return -ENOMEM;
cpr->stats.len = size;
rc = bnxt_alloc_stats_mem(bp, &cpr->stats, !i);
if (rc)
@ -10811,9 +10821,9 @@ static void bnxt_disable_napi(struct bnxt *bp)
cpr = &bnapi->cp_ring;
if (bnapi->tx_fault)
cpr->sw_stats.tx.tx_resets++;
cpr->sw_stats->tx.tx_resets++;
if (bnapi->in_reset)
cpr->sw_stats.rx.rx_resets++;
cpr->sw_stats->rx.rx_resets++;
napi_disable(&bnapi->napi);
if (bnapi->rx_ring)
cancel_work_sync(&cpr->dim.work);
@ -11548,7 +11558,7 @@ static int bnxt_hwrm_if_change(struct bnxt *bp, bool up)
if (fw_reset) {
set_bit(BNXT_STATE_FW_RESET_DET, &bp->state);
if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
bnxt_ulp_stop(bp);
bnxt_ulp_irq_stop(bp);
bnxt_free_ctx_mem(bp);
bnxt_dcb_free(bp);
rc = bnxt_fw_init_one(bp);
@ -12103,10 +12113,9 @@ static int bnxt_open(struct net_device *dev)
bnxt_hwrm_if_change(bp, false);
} else {
if (test_and_clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state)) {
if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
bnxt_ulp_start(bp, 0);
bnxt_reenable_sriov(bp);
}
if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
bnxt_queue_sp_work(bp,
BNXT_RESTART_ULP_SP_EVENT);
}
}
@ -12338,8 +12347,8 @@ static void bnxt_get_ring_stats(struct bnxt *bp,
stats->tx_dropped += BNXT_GET_RING_STATS64(sw, tx_error_pkts);
stats->rx_dropped +=
cpr->sw_stats.rx.rx_netpoll_discards +
cpr->sw_stats.rx.rx_oom_discards;
cpr->sw_stats->rx.rx_netpoll_discards +
cpr->sw_stats->rx.rx_oom_discards;
}
}
@ -12406,7 +12415,7 @@ static void bnxt_get_one_ring_err_stats(struct bnxt *bp,
struct bnxt_total_ring_err_stats *stats,
struct bnxt_cp_ring_info *cpr)
{
struct bnxt_sw_stats *sw_stats = &cpr->sw_stats;
struct bnxt_sw_stats *sw_stats = cpr->sw_stats;
u64 *hw_stats = cpr->stats.sw_stats;
stats->rx_total_l4_csum_errors += sw_stats->rx.rx_l4_csum_errors;
@ -13081,17 +13090,8 @@ static void bnxt_reset_task(struct bnxt *bp, bool silent)
if (!silent)
bnxt_dbg_dump_states(bp);
if (netif_running(bp->dev)) {
int rc;
if (silent) {
bnxt_close_nic(bp, false, false);
bnxt_open_nic(bp, false, false);
} else {
bnxt_ulp_stop(bp);
bnxt_close_nic(bp, true, false);
rc = bnxt_open_nic(bp, true, false);
bnxt_ulp_start(bp, rc);
}
bnxt_close_nic(bp, !silent, false);
bnxt_open_nic(bp, !silent, false);
}
}
@ -13249,7 +13249,7 @@ static void bnxt_rx_ring_reset(struct bnxt *bp)
rxr->bnapi->in_reset = false;
bnxt_alloc_one_rx_ring(bp, i);
cpr = &rxr->bnapi->cp_ring;
cpr->sw_stats.rx.rx_resets++;
cpr->sw_stats->rx.rx_resets++;
if (bp->flags & BNXT_FLAG_AGG_RINGS)
bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod);
bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod);
@ -13271,7 +13271,6 @@ static void bnxt_fw_fatal_close(struct bnxt *bp)
static void bnxt_fw_reset_close(struct bnxt *bp)
{
bnxt_ulp_stop(bp);
/* When firmware is in fatal state, quiesce device and disable
* bus master to prevent any potential bad DMAs before freeing
* kernel memory.
@ -13352,6 +13351,7 @@ void bnxt_fw_exception(struct bnxt *bp)
{
netdev_warn(bp->dev, "Detected firmware fatal condition, initiating reset\n");
set_bit(BNXT_STATE_FW_FATAL_COND, &bp->state);
bnxt_ulp_stop(bp);
bnxt_rtnl_lock_sp(bp);
bnxt_force_fw_reset(bp);
bnxt_rtnl_unlock_sp(bp);
@ -13383,6 +13383,7 @@ static int bnxt_get_registered_vfs(struct bnxt *bp)
void bnxt_fw_reset(struct bnxt *bp)
{
bnxt_ulp_stop(bp);
bnxt_rtnl_lock_sp(bp);
if (test_bit(BNXT_STATE_OPEN, &bp->state) &&
!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
@ -13461,7 +13462,7 @@ static void bnxt_chk_missed_irq(struct bnxt *bp)
bnxt_dbg_hwrm_ring_info_get(bp,
DBG_RING_INFO_GET_REQ_RING_TYPE_L2_CMPL,
fw_ring_id, &val[0], &val[1]);
cpr->sw_stats.cmn.missed_irqs++;
cpr->sw_stats->cmn.missed_irqs++;
}
}
}
@ -13507,6 +13508,12 @@ static void bnxt_fw_echo_reply(struct bnxt *bp)
hwrm_req_send(bp, req);
}
static void bnxt_ulp_restart(struct bnxt *bp)
{
bnxt_ulp_stop(bp);
bnxt_ulp_start(bp, 0);
}
static void bnxt_sp_task(struct work_struct *work)
{
struct bnxt *bp = container_of(work, struct bnxt, sp_task);
@ -13518,6 +13525,11 @@ static void bnxt_sp_task(struct work_struct *work)
return;
}
if (test_and_clear_bit(BNXT_RESTART_ULP_SP_EVENT, &bp->sp_event)) {
bnxt_ulp_restart(bp);
bnxt_reenable_sriov(bp);
}
if (test_and_clear_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event))
bnxt_cfg_rx_mode(bp);
@ -13974,10 +13986,8 @@ static bool bnxt_fw_reset_timeout(struct bnxt *bp)
static void bnxt_fw_reset_abort(struct bnxt *bp, int rc)
{
clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
if (bp->fw_reset_state != BNXT_FW_RESET_STATE_POLL_VF) {
bnxt_ulp_start(bp, rc);
if (bp->fw_reset_state != BNXT_FW_RESET_STATE_POLL_VF)
bnxt_dl_health_fw_status_update(bp, false);
}
bp->fw_reset_state = 0;
dev_close(bp->dev);
}
@ -14008,7 +14018,7 @@ static void bnxt_fw_reset_task(struct work_struct *work)
bp->fw_reset_state = 0;
netdev_err(bp->dev, "Firmware reset aborted, bnxt_get_registered_vfs() returns %d\n",
n);
return;
goto ulp_start;
}
bnxt_queue_fw_reset_work(bp, HZ / 10);
return;
@ -14018,7 +14028,7 @@ static void bnxt_fw_reset_task(struct work_struct *work)
if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) {
bnxt_fw_reset_abort(bp, rc);
rtnl_unlock();
return;
goto ulp_start;
}
bnxt_fw_reset_close(bp);
if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) {
@ -14111,7 +14121,7 @@ static void bnxt_fw_reset_task(struct work_struct *work)
netdev_err(bp->dev, "bnxt_open() failed during FW reset\n");
bnxt_fw_reset_abort(bp, rc);
rtnl_unlock();
return;
goto ulp_start;
}
if ((bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) &&
@ -14123,10 +14133,6 @@ static void bnxt_fw_reset_task(struct work_struct *work)
/* Make sure fw_reset_state is 0 before clearing the flag */
smp_mb__before_atomic();
clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
bnxt_ulp_start(bp, 0);
bnxt_reenable_sriov(bp);
bnxt_vf_reps_alloc(bp);
bnxt_vf_reps_open(bp);
bnxt_ptp_reapply_pps(bp);
clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
if (test_and_clear_bit(BNXT_STATE_RECOVER, &bp->state)) {
@ -14134,6 +14140,12 @@ static void bnxt_fw_reset_task(struct work_struct *work)
bnxt_dl_health_fw_status_update(bp, true);
}
rtnl_unlock();
bnxt_ulp_start(bp, 0);
bnxt_reenable_sriov(bp);
rtnl_lock();
bnxt_vf_reps_alloc(bp);
bnxt_vf_reps_open(bp);
rtnl_unlock();
break;
}
return;
@ -14149,6 +14161,8 @@ fw_reset_abort:
rtnl_lock();
bnxt_fw_reset_abort(bp, rc);
rtnl_unlock();
ulp_start:
bnxt_ulp_start(bp, rc);
}
static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev)
@ -14769,7 +14783,7 @@ static void bnxt_get_queue_stats_rx(struct net_device *dev, int i,
stats->bytes += BNXT_GET_RING_STATS64(sw, rx_mcast_bytes);
stats->bytes += BNXT_GET_RING_STATS64(sw, rx_bcast_bytes);
stats->alloc_fail = cpr->sw_stats.rx.rx_oom_discards;
stats->alloc_fail = cpr->sw_stats->rx.rx_oom_discards;
}
static void bnxt_get_queue_stats_tx(struct net_device *dev, int i,
@ -15535,8 +15549,9 @@ static int bnxt_suspend(struct device *device)
struct bnxt *bp = netdev_priv(dev);
int rc = 0;
rtnl_lock();
bnxt_ulp_stop(bp);
rtnl_lock();
if (netif_running(dev)) {
netif_device_detach(dev);
rc = bnxt_close(dev);
@ -15591,10 +15606,10 @@ static int bnxt_resume(struct device *device)
}
resume_exit:
rtnl_unlock();
bnxt_ulp_start(bp, rc);
if (!rc)
bnxt_reenable_sriov(bp);
rtnl_unlock();
return rc;
}
@ -15624,11 +15639,11 @@ static pci_ers_result_t bnxt_io_error_detected(struct pci_dev *pdev,
netdev_info(netdev, "PCI I/O error detected\n");
bnxt_ulp_stop(bp);
rtnl_lock();
netif_device_detach(netdev);
bnxt_ulp_stop(bp);
if (test_and_set_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
netdev_err(bp->dev, "Firmware reset already in progress\n");
abort = true;
@ -15764,13 +15779,13 @@ static void bnxt_io_resume(struct pci_dev *pdev)
if (!err && netif_running(netdev))
err = bnxt_open(netdev);
bnxt_ulp_start(bp, err);
if (!err) {
bnxt_reenable_sriov(bp);
if (!err)
netif_device_attach(netdev);
}
rtnl_unlock();
bnxt_ulp_start(bp, err);
if (!err)
bnxt_reenable_sriov(bp);
}
static const struct pci_error_handlers bnxt_err_handler = {

4
drivers/net/ethernet/broadcom/bnxt/bnxt.h
View File

@ -1152,7 +1152,7 @@ struct bnxt_cp_ring_info {
struct bnxt_stats_mem stats;
u32 hw_stats_ctx_id;
struct bnxt_sw_stats sw_stats;
struct bnxt_sw_stats *sw_stats;
struct bnxt_ring_struct cp_ring_struct;
@ -2013,6 +2013,7 @@ enum board_idx {
NETXTREME_E_VF_HV,
NETXTREME_E_P5_VF,
NETXTREME_E_P5_VF_HV,
NETXTREME_E_P7_VF,
};
struct bnxt {
@ -2440,6 +2441,7 @@ struct bnxt {
#define BNXT_LINK_CFG_CHANGE_SP_EVENT 21
#define BNXT_THERMAL_THRESHOLD_SP_EVENT 22
#define BNXT_FW_ECHO_REQUEST_SP_EVENT 23
#define BNXT_RESTART_ULP_SP_EVENT 24
struct delayed_work fw_reset_task;
int fw_reset_state;

7
drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
View File

@ -437,18 +437,20 @@ static int bnxt_dl_reload_down(struct devlink *dl, bool netns_change,
switch (action) {
case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: {
bnxt_ulp_stop(bp);
rtnl_lock();
if (bnxt_sriov_cfg(bp)) {
NL_SET_ERR_MSG_MOD(extack,
"reload is unsupported while VFs are allocated or being configured");
rtnl_unlock();
bnxt_ulp_start(bp, 0);
return -EOPNOTSUPP;
}
if (bp->dev->reg_state == NETREG_UNREGISTERED) {
rtnl_unlock();
bnxt_ulp_start(bp, 0);
return -ENODEV;
}
bnxt_ulp_stop(bp);
if (netif_running(bp->dev))
bnxt_close_nic(bp, true, true);
bnxt_vf_reps_free(bp);
@ -516,7 +518,6 @@ static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action acti
bnxt_vf_reps_alloc(bp);
if (netif_running(bp->dev))
rc = bnxt_open_nic(bp, true, true);
bnxt_ulp_start(bp, rc);
if (!rc) {
bnxt_reenable_sriov(bp);
bnxt_ptp_reapply_pps(bp);
@ -570,6 +571,8 @@ static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action acti
dev_close(bp->dev);
}
rtnl_unlock();
if (action == DEVLINK_RELOAD_ACTION_DRIVER_REINIT)
bnxt_ulp_start(bp, rc);
return rc;
}

15
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
View File

@ -631,13 +631,13 @@ static void bnxt_get_ethtool_stats(struct net_device *dev,
buf[j] = sw_stats[k];
skip_tpa_ring_stats:
sw = (u64 *)&cpr->sw_stats.rx;
sw = (u64 *)&cpr->sw_stats->rx;
if (is_rx_ring(bp, i)) {
for (k = 0; k < NUM_RING_RX_SW_STATS; j++, k++)
buf[j] = sw[k];
}
sw = (u64 *)&cpr->sw_stats.cmn;
sw = (u64 *)&cpr->sw_stats->cmn;
for (k = 0; k < NUM_RING_CMN_SW_STATS; j++, k++)
buf[j] = sw[k];
}
@ -4820,6 +4820,14 @@ static void bnxt_self_test(struct net_device *dev, struct ethtool_test *etest,
if (!bp->num_tests || !BNXT_PF(bp))
return;
if (etest->flags & ETH_TEST_FL_OFFLINE &&
bnxt_ulp_registered(bp->edev)) {
etest->flags |= ETH_TEST_FL_FAILED;
netdev_warn(dev, "Offline tests cannot be run with RoCE driver loaded\n");
return;
}
memset(buf, 0, sizeof(u64) * bp->num_tests);
if (!netif_running(dev)) {
etest->flags |= ETH_TEST_FL_FAILED;
@ -4850,7 +4858,6 @@ static void bnxt_self_test(struct net_device *dev, struct ethtool_test *etest,
if (!offline) {
bnxt_run_fw_tests(bp, test_mask, &test_results);
} else {
bnxt_ulp_stop(bp);
bnxt_close_nic(bp, true, false);
bnxt_run_fw_tests(bp, test_mask, &test_results);
@ -4861,7 +4868,6 @@ static void bnxt_self_test(struct net_device *dev, struct ethtool_test *etest,
if (rc) {
bnxt_hwrm_mac_loopback(bp, false);
etest->flags |= ETH_TEST_FL_FAILED;
bnxt_ulp_start(bp, rc);
return;
}
if (bnxt_run_loopback(bp))
@ -4888,7 +4894,6 @@ static void bnxt_self_test(struct net_device *dev, struct ethtool_test *etest,
bnxt_hwrm_phy_loopback(bp, false, false);
bnxt_half_close_nic(bp);
rc = bnxt_open_nic(bp, true, true);
bnxt_ulp_start(bp, rc);
}
if (rc || bnxt_test_irq(bp)) {
buf[BNXT_IRQ_TEST_IDX] = 1;

20
drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
View File

@ -113,6 +113,7 @@ int bnxt_register_dev(struct bnxt_en_dev *edev,
int rc = 0;
rtnl_lock();
mutex_lock(&edev->en_dev_lock);
if (!bp->irq_tbl) {
rc = -ENODEV;
goto exit;
@ -136,6 +137,7 @@ int bnxt_register_dev(struct bnxt_en_dev *edev,
bnxt_fill_msix_vecs(bp, bp->edev->msix_entries);
edev->flags |= BNXT_EN_FLAG_MSIX_REQUESTED;
exit:
mutex_unlock(&edev->en_dev_lock);
rtnl_unlock();
return rc;
}
@ -150,6 +152,7 @@ void bnxt_unregister_dev(struct bnxt_en_dev *edev)
ulp = edev->ulp_tbl;
rtnl_lock();
mutex_lock(&edev->en_dev_lock);
if (ulp->msix_requested)
edev->flags &= ~BNXT_EN_FLAG_MSIX_REQUESTED;
edev->ulp_tbl->msix_requested = 0;
@ -165,6 +168,7 @@ void bnxt_unregister_dev(struct bnxt_en_dev *edev)
msleep(100);
i++;
}
mutex_unlock(&edev->en_dev_lock);
rtnl_unlock();
return;
}
@ -223,6 +227,12 @@ void bnxt_ulp_stop(struct bnxt *bp)
if (!edev)
return;
mutex_lock(&edev->en_dev_lock);
if (!bnxt_ulp_registered(edev)) {
mutex_unlock(&edev->en_dev_lock);
return;
}
edev->flags |= BNXT_EN_FLAG_ULP_STOPPED;
if (aux_priv) {
struct auxiliary_device *adev;
@ -237,6 +247,7 @@ void bnxt_ulp_stop(struct bnxt *bp)
adrv->suspend(adev, pm);
}
}
mutex_unlock(&edev->en_dev_lock);
}
void bnxt_ulp_start(struct bnxt *bp, int err)
@ -252,6 +263,12 @@ void bnxt_ulp_start(struct bnxt *bp, int err)
if (err)
return;
mutex_lock(&edev->en_dev_lock);
if (!bnxt_ulp_registered(edev)) {
mutex_unlock(&edev->en_dev_lock);
return;
}
if (edev->ulp_tbl->msix_requested)
bnxt_fill_msix_vecs(bp, edev->msix_entries);
@ -267,7 +284,7 @@ void bnxt_ulp_start(struct bnxt *bp, int err)
adrv->resume(adev);
}
}
mutex_unlock(&edev->en_dev_lock);
}
void bnxt_ulp_irq_stop(struct bnxt *bp)
@ -383,6 +400,7 @@ static void bnxt_set_edev_info(struct bnxt_en_dev *edev, struct bnxt *bp)
edev->l2_db_size = bp->db_size;
edev->l2_db_size_nc = bp->db_size;
edev->l2_db_offset = bp->db_offset;
mutex_init(&edev->en_dev_lock);
if (bp->flags & BNXT_FLAG_ROCEV1_CAP)
edev->flags |= BNXT_EN_FLAG_ROCEV1_CAP;

3
drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h
View File

@ -88,6 +88,9 @@ struct bnxt_en_dev {
u16 ulp_num_msix_vec;
u16 ulp_num_ctxs;
/* serialize ulp operations */
struct mutex en_dev_lock;
};
static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev)