4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Saravanan Vajravel saravanan.vajravel@broadcom.com
[ Upstream commit 9ab20f76ae9fad55ebaf36bdff04aea1c2552374 ]
Driver uses internal data structure to construct WQE frame. It used avid type as u16 which can accommodate up to 64K AVs. When outstanding AVID crosses 64K, driver truncates AVID and hence it uses incorrect AVID to WR. This leads to WR failure due to invalid AV ID and QP is moved to error state with reason set to 19 (INVALID AVID). When RDMA CM path is used, this issue hits QP1 and it is moved to error state
Fixes: 1ac5a4047975 ("RDMA/bnxt_re: Add bnxt_re RoCE driver") Link: https://patch.msgid.link/r/1726715161-18941-3-git-send-email-selvin.xavier@b... Reviewed-by: Selvin Xavier selvin.xavier@broadcom.com Reviewed-by: Chandramohan Akula chandramohan.akula@broadcom.com Signed-off-by: Saravanan Vajravel saravanan.vajravel@broadcom.com Signed-off-by: Kalesh AP kalesh-anakkur.purayil@broadcom.com Signed-off-by: Selvin Xavier selvin.xavier@broadcom.com Signed-off-by: Jason Gunthorpe jgg@nvidia.com Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/hw/bnxt_re/qplib_fp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h index d0b24e961511a..aed0c53d84be2 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h +++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.h @@ -150,7 +150,7 @@ struct bnxt_qplib_swqe { }; u32 q_key; u32 dst_qp; - u16 avid; + u32 avid; } send;
/* Send Raw Ethernet and QP1 */