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authorSelvin Xavier <selvin.xavier@broadcom.com>2020-08-06 07:45:48 +0300
committerJason Gunthorpe <jgg@nvidia.com>2020-08-20 14:31:41 +0300
commita812f2d60a9fb7818f9c81f967180317b52545c0 (patch)
tree2586bf0d59464995f105bb16d9a95d4fe1750ab7 /drivers/infiniband
parent4469add9d3b3cdade854997720ebfeb53a83d761 (diff)
downloadlinux-a812f2d60a9fb7818f9c81f967180317b52545c0.tar.xz
RDMA/bnxt_re: Do not add user qps to flushlist
Driver shall add only the kernel qps to the flush list for clean up. During async error events from the HW, driver is adding qps to this list without checking if the qp is kernel qp or not. Add a check to avoid user qp addition to the flush list. Fixes: 942c9b6ca8de ("RDMA/bnxt_re: Avoid Hard lockup during error CQE processing") Fixes: c50866e2853a ("bnxt_re: fix the regression due to changes in alloc_pbl") Link: https://lore.kernel.org/r/1596689148-4023-1-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/bnxt_re/main.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index dad0df8a2467..17ac8b7c5710 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -821,7 +821,8 @@ static int bnxt_re_handle_qp_async_event(struct creq_qp_event *qp_event,
struct ib_event event;
unsigned int flags;
- if (qp->qplib_qp.state == CMDQ_MODIFY_QP_NEW_STATE_ERR) {
+ if (qp->qplib_qp.state == CMDQ_MODIFY_QP_NEW_STATE_ERR &&
+ rdma_is_kernel_res(&qp->ib_qp.res)) {
flags = bnxt_re_lock_cqs(qp);
bnxt_qplib_add_flush_qp(&qp->qplib_qp);
bnxt_re_unlock_cqs(qp, flags);