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RDMA/irdma: Take a lock before moving SRQ tail in poll_cq

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Need to take an SRQ lock in poll_cq before moving SRQ tail.

Signed-off-by: Jay Bhat <jay.bhat@intel.com>
Reviewed-by: Jacob Moroni <jmoroni@google.com>
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Link: https://patch.msgid.link/20251031021726.1003-7-tatyana.e.nikolova@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Jay Bhat 2025-10-30 21:17:26 -05:00 committed by Leon Romanovsky
parent 0a19274555
commit da58d4223b
3 changed files with 7 additions and 0 deletions
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5
drivers/infiniband/hw/irdma/uk.c
View File

@ -1309,6 +1309,8 @@ int irdma_uk_cq_poll_cmpl(struct irdma_cq_uk *cq,
info->op_type = (u8)FIELD_GET(IRDMACQ_OP, qword3);
if (info->q_type == IRDMA_CQE_QTYPE_RQ && is_srq) {
unsigned long flags;
srq = qp->srq_uk;
get_64bit_val(cqe, 8, &info->wr_id);
@ -1321,8 +1323,11 @@ int irdma_uk_cq_poll_cmpl(struct irdma_cq_uk *cq,
} else {
info->stag_invalid_set = false;
}
spin_lock_irqsave(srq->lock, flags);
IRDMA_RING_MOVE_TAIL(srq->srq_ring);
spin_unlock_irqrestore(srq->lock, flags);
pring = &srq->srq_ring;
} else if (info->q_type == IRDMA_CQE_QTYPE_RQ && !is_srq) {
u32 array_idx;

1
drivers/infiniband/hw/irdma/user.h
View File

@ -466,6 +466,7 @@ struct irdma_srq_uk {
u8 wqe_size;
u8 wqe_size_multiplier;
u8 deferred_flag;
spinlock_t *lock;
};
struct irdma_srq_uk_init_info {

1
drivers/infiniband/hw/irdma/verbs.c
View File

@ -2388,6 +2388,7 @@ static int irdma_create_srq(struct ib_srq *ibsrq,
info.vsi = &iwdev->vsi;
info.pd = &iwpd->sc_pd;
iwsrq->sc_srq.srq_uk.lock = &iwsrq->lock;
err_code = irdma_sc_srq_init(&iwsrq->sc_srq, &info);
if (err_code)
goto free_dmem;