diff options
Diffstat (limited to 'drivers/infiniband/hw/bnxt_re/main.c')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/main.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index fdb8c2478258..b30d37f0bad2 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -81,6 +81,7 @@ static struct workqueue_struct *bnxt_re_wq; static void bnxt_re_remove_device(struct bnxt_re_dev *rdev); static void bnxt_re_dealloc_driver(struct ib_device *ib_dev); static void bnxt_re_stop_irq(void *handle); +static void bnxt_re_dev_stop(struct bnxt_re_dev *rdev); static void bnxt_re_set_drv_mode(struct bnxt_re_dev *rdev, u8 mode) { @@ -221,6 +222,37 @@ static void bnxt_re_set_resource_limits(struct bnxt_re_dev *rdev) /* for handling bnxt_en callbacks later */ static void bnxt_re_stop(void *p) { + struct bnxt_re_dev *rdev = p; + struct bnxt *bp; + + if (!rdev) + return; + ASSERT_RTNL(); + + /* L2 driver invokes this callback during device error/crash or device + * reset. Current RoCE driver doesn't recover the device in case of + * error. Handle the error by dispatching fatal events to all qps + * ie. by calling bnxt_re_dev_stop and release the MSIx vectors as + * L2 driver want to modify the MSIx table. + */ + bp = netdev_priv(rdev->netdev); + + ibdev_info(&rdev->ibdev, "Handle device stop call from L2 driver"); + /* Check the current device state from L2 structure and move the + * device to detached state if FW_FATAL_COND is set. + * This prevents more commands to HW during clean-up, + * in case the device is already in error. + */ + if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) + set_bit(ERR_DEVICE_DETACHED, &rdev->rcfw.cmdq.flags); + + bnxt_re_dev_stop(rdev); + bnxt_re_stop_irq(rdev); + /* Move the device states to detached and avoid sending any more + * commands to HW + */ + set_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags); + set_bit(ERR_DEVICE_DETACHED, &rdev->rcfw.cmdq.flags); } static void bnxt_re_start(void *p) @@ -234,6 +266,8 @@ static void bnxt_re_sriov_config(void *p, int num_vfs) if (!rdev) return; + if (test_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags)) + return; rdev->num_vfs = num_vfs; if (!bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx)) { bnxt_re_set_resource_limits(rdev); @@ -427,6 +461,9 @@ static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev, if (!en_dev) return rc; + if (test_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags)) + return 0; + memset(&fw_msg, 0, sizeof(fw_msg)); bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_RING_FREE, -1, -1); @@ -489,6 +526,9 @@ static int bnxt_re_net_stats_ctx_free(struct bnxt_re_dev *rdev, if (!en_dev) return rc; + if (test_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags)) + return 0; + memset(&fw_msg, 0, sizeof(fw_msg)); bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_STAT_CTX_FREE, -1, -1); |