diff options
| author | Damodharam Ammepalli <damodharam.ammepalli@broadcom.com> | 2024-12-17 15:56:48 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-01-09 13:33:35 +0100 |
| commit | 003e82749a24b8045c0f7fb77bb03223633fae2c (patch) | |
| tree | 3b1284f043574cde3a3ea7d0b286dbec70bf6f42 | |
| parent | 2c73cd31f9173115df0db6b0e449b14ea3d401d0 (diff) | |
RDMA/bnxt_re: Fix MSN table size for variable wqe mode
[ Upstream commit bb839f3ace0fee532a0487b692cc4d868fccb7cf ]
For variable size wqe mode, the MSN table size should be
half the size of the SQ depth. Fixing this to avoid wrap
around problems in the retransmission path.
Fixes: de1d364c3815 ("RDMA/bnxt_re: Add support for Variable WQE in Genp7 adapters")
Reviewed-by: Kashyap Desai <kashyap.desai@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/20241217102649.1377704-5-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_fp.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c index f5db29707449..3a34154b0d9d 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c @@ -1032,7 +1032,12 @@ int bnxt_qplib_create_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp) : 0; /* Update msn tbl size */ if (qp->is_host_msn_tbl && psn_sz) { - hwq_attr.aux_depth = roundup_pow_of_two(bnxt_qplib_set_sq_size(sq, qp->wqe_mode)); + if (qp->wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) + hwq_attr.aux_depth = + roundup_pow_of_two(bnxt_qplib_set_sq_size(sq, qp->wqe_mode)); + else + hwq_attr.aux_depth = + roundup_pow_of_two(bnxt_qplib_set_sq_size(sq, qp->wqe_mode)) / 2; qp->msn_tbl_sz = hwq_attr.aux_depth; qp->msn = 0; } |