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RDMA/bnxt_re: Disable use of reserved wqes 

Disabling the reserved wqes logic for Gen P5/P7 devices
because this workaround is required only for legacy devices.

Fixes: ecb53febfc ("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>
pull/1114/head
Kalesh AP 2024-12-17 15:56:46 +05:30 committed by Leon Romanovsky
parent 40be32303e
commit d5a38bf2f3
1 changed files with 7 additions and 5 deletions
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12
drivers/infiniband/hw/bnxt_re/qplib_sp.c
View File

@ -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;