This is a note to let you know that I've just added the patch titled
RDMA/bnxt_re: Fix max SGEs for the Work Request
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rdma-bnxt_re-fix-max-sges-for-the-work-request.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9b5dcc7ca28ba611461aa117070e1f62c5de6855
Author: Kashyap Desai <kashyap.desai@xxxxxxxxxxxx>
Date: Wed Dec 4 13:24:12 2024 +0530
RDMA/bnxt_re: Fix max SGEs for the Work Request
[ Upstream commit 79d330fbdffd8cee06d8bdf38d82cb62d8363a27 ]
Gen P7 supports up to 13 SGEs for now. WQE software structure
can hold only 6 now. Since the max send sge is reported as
13, the stack can give requests up to 13 SGEs. This is causing
traffic failures and system crashes.
Use the define for max SGE supported for variable size. This
will work for both static and variable WQEs.
Fixes: 227f51743b61 ("RDMA/bnxt_re: Fix the max WQE size for static WQE support")
Signed-off-by: Kashyap Desai <kashyap.desai@xxxxxxxxxxxx>
Signed-off-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
Link: https://patch.msgid.link/20241204075416.478431-2-kalesh-anakkur.purayil@xxxxxxxxxxxx
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
index f55958e5fddb..d8c71c024613 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
@@ -114,7 +114,6 @@ struct bnxt_qplib_sge {
u32 size;
};
-#define BNXT_QPLIB_QP_MAX_SGL 6
struct bnxt_qplib_swq {
u64 wr_id;
int next_idx;
@@ -154,7 +153,7 @@ struct bnxt_qplib_swqe {
#define BNXT_QPLIB_SWQE_FLAGS_UC_FENCE BIT(2)
#define BNXT_QPLIB_SWQE_FLAGS_SOLICIT_EVENT BIT(3)
#define BNXT_QPLIB_SWQE_FLAGS_INLINE BIT(4)
- struct bnxt_qplib_sge sg_list[BNXT_QPLIB_QP_MAX_SGL];
+ struct bnxt_qplib_sge sg_list[BNXT_VAR_MAX_SGE];
int num_sge;
/* Max inline data is 96 bytes */
u32 inline_len;
