Commit 6c75520f authored by Parav Pandit's avatar Parav Pandit Committed by Jason Gunthorpe

IB/mlx5: Don't hold spin lock while checking device state

mdev->state device state is not protected by the QP for which WRs are
being processed. Therefore, there is no need to hold spin lock while
checking mdev state.

Given that device fatal error is unlikely situation, wrap the condition
check with unlikely().

Additionally, kernel QP1 is also a kernel ULP for which soft CQEs needs
to be generated. Therefore, check for device fatal error before
processing QP1 work requests.

Fixes: 89ea94a7 ("IB/mlx5: Reset flow support for IB kernel ULPs")
Signed-off-by: default avatarParav Pandit <parav@mellanox.com>
Reviewed-by: default avatarDaniel Jurgens <danielj@mellanox.com>
Reviewed-by: default avatarMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 798bba01
...@@ -4400,6 +4400,12 @@ static int _mlx5_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr, ...@@ -4400,6 +4400,12 @@ static int _mlx5_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
u8 next_fence = 0; u8 next_fence = 0;
u8 fence; u8 fence;
if (unlikely(mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR &&
!drain)) {
*bad_wr = wr;
return -EIO;
}
if (unlikely(ibqp->qp_type == IB_QPT_GSI)) if (unlikely(ibqp->qp_type == IB_QPT_GSI))
return mlx5_ib_gsi_post_send(ibqp, wr, bad_wr); return mlx5_ib_gsi_post_send(ibqp, wr, bad_wr);
...@@ -4409,13 +4415,6 @@ static int _mlx5_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr, ...@@ -4409,13 +4415,6 @@ static int _mlx5_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
spin_lock_irqsave(&qp->sq.lock, flags); spin_lock_irqsave(&qp->sq.lock, flags);
if (mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR && !drain) {
err = -EIO;
*bad_wr = wr;
nreq = 0;
goto out;
}
for (nreq = 0; wr; nreq++, wr = wr->next) { for (nreq = 0; wr; nreq++, wr = wr->next) {
if (unlikely(wr->opcode >= ARRAY_SIZE(mlx5_ib_opcode))) { if (unlikely(wr->opcode >= ARRAY_SIZE(mlx5_ib_opcode))) {
mlx5_ib_warn(dev, "\n"); mlx5_ib_warn(dev, "\n");
...@@ -4729,18 +4728,17 @@ static int _mlx5_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr, ...@@ -4729,18 +4728,17 @@ static int _mlx5_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
int ind; int ind;
int i; int i;
if (unlikely(mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR &&
!drain)) {
*bad_wr = wr;
return -EIO;
}
if (unlikely(ibqp->qp_type == IB_QPT_GSI)) if (unlikely(ibqp->qp_type == IB_QPT_GSI))
return mlx5_ib_gsi_post_recv(ibqp, wr, bad_wr); return mlx5_ib_gsi_post_recv(ibqp, wr, bad_wr);
spin_lock_irqsave(&qp->rq.lock, flags); spin_lock_irqsave(&qp->rq.lock, flags);
if (mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR && !drain) {
err = -EIO;
*bad_wr = wr;
nreq = 0;
goto out;
}
ind = qp->rq.head & (qp->rq.wqe_cnt - 1); ind = qp->rq.head & (qp->rq.wqe_cnt - 1);
for (nreq = 0; wr; nreq++, wr = wr->next) { for (nreq = 0; wr; nreq++, wr = wr->next) {
......
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