6.6-stable review patch. If anyone has any objections, please let me know.
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From: Kashyap Desai kashyap.desai@broadcom.com
commit 79d330fbdffd8cee06d8bdf38d82cb62d8363a27 upstream.
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 Link: https://patch.msgid.link/20241204075416.478431-2-kalesh-anakkur.purayil@broa... Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/bnxt_re/qplib_fp.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h +++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.h @@ -113,7 +113,6 @@ struct bnxt_qplib_sge { u32 size; };
-#define BNXT_QPLIB_QP_MAX_SGL 6 struct bnxt_qplib_swq { u64 wr_id; int next_idx; @@ -153,7 +152,7 @@ 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;