From: Selvin Xavier <[email protected]>
[ Upstream commit a812f2d60a9fb7818f9c81f967180317b52545c0 ]
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/[email protected]
Signed-off-by: Selvin Xavier <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/infiniband/hw/bnxt_re/main.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/bnxt_re/main.c
b/drivers/infiniband/hw/bnxt_re/main.c
index 27e2df44d043d..cfe5f47d9890e 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -789,7 +789,8 @@ 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);
--
2.25.1
