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[for-rc,1/5] RDMA/bnxt_re: Fix max SGEs for the Work Request

Message ID 20241204075416.478431-2-kalesh-anakkur.purayil@broadcom.com (mailing list archive)
State New
Headers show
Series RDMA/bnxt_re: Bug fixes | expand

Commit Message

Kalesh AP Dec. 4, 2024, 7:54 a.m. UTC 
From: Kashyap Desai <kashyap.desai@broadcom.com>

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@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
---
 drivers/infiniband/hw/bnxt_re/qplib_fp.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
index ef3424c81345..19e279871f10 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;