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| author | Kalesh AP <kalesh-anakkur.purayil@broadcom.com> | 2024-12-17 15:56:46 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-01-09 13:31:57 +0100 |
| commit | 3ae9ee7ff3b28a29fe0b91f730580c0544254043 (patch) | |
| tree | 70ed313073d24fb1a0d8c62401c7089e10412ffa /drivers | |
| parent | bb46a484a0c61fd0552e838753ed6f07739cac3a (diff) | |
| download | linux-3ae9ee7ff3b28a29fe0b91f730580c0544254043.tar.gz linux-3ae9ee7ff3b28a29fe0b91f730580c0544254043.tar.bz2 linux-3ae9ee7ff3b28a29fe0b91f730580c0544254043.zip | |
RDMA/bnxt_re: Disable use of reserved wqes
[ Upstream commit d5a38bf2f35979537c526acbc56bc435ed40685f ]
Disabling the reserved wqes logic for Gen P5/P7 devices
because this workaround is required only for legacy devices.
Fixes: ecb53febfcad ("RDMA/bnxt_en: Enable RDMA driver support for 57500 chip")
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/20241217102649.1377704-3-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_sp.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c index a46df2a5ab33..577a6eaca4ce 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c @@ -130,11 +130,13 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw, sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ? BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom; attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr) - 1; - /* - * 128 WQEs needs to be reserved for the HW (8916). Prevent - * reporting the max number - */ - attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS + 1; + if (!bnxt_qplib_is_chip_gen_p5_p7(rcfw->res->cctx)) { + /* + * 128 WQEs needs to be reserved for the HW (8916). Prevent + * reporting the max number on legacy devices + */ + attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS + 1; + } attr->max_qp_sges = cctx->modes.wqe_mode == BNXT_QPLIB_WQE_MODE_VARIABLE ? min_t(u32, sb->max_sge_var_wqe, BNXT_VAR_MAX_SGE) : 6; |