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RDMA/bnxt_re: Fix the max CQ WQEs for older adapters

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Older adapters doesn't support the MAX CQ WQEs reported by older FW. So
restrict the value reported to 1M always for older adapters.

Fixes: 1ac5a40479 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Link: https://patch.msgid.link/r/1728373302-19530-2-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Abhishek Mohapatra<abhishek.mohapatra@broadcom.com>
Reviewed-by: Chandramohan Akula <chandramohan.akula@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Abhishek Mohapatra 2024-10-08 00:41:33 -07:00 committed by Jason Gunthorpe
parent 4d784c042d
commit ac6df53738
2 changed files with 3 additions and 0 deletions
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2
drivers/infiniband/hw/bnxt_re/qplib_sp.c
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@ -140,6 +140,8 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
min_t(u32, sb->max_sge_var_wqe, BNXT_VAR_MAX_SGE) : 6;
attr->max_cq = le32_to_cpu(sb->max_cq);
attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
if (!bnxt_qplib_is_chip_gen_p7(rcfw->res->cctx))
attr->max_cq_wqes = min_t(u32, BNXT_QPLIB_MAX_CQ_WQES, attr->max_cq_wqes);
attr->max_cq_sges = attr->max_qp_sges;
attr->max_mr = le32_to_cpu(sb->max_mr);
attr->max_mw = le32_to_cpu(sb->max_mw);

1
drivers/infiniband/hw/bnxt_re/qplib_sp.h
View File

@ -56,6 +56,7 @@ struct bnxt_qplib_dev_attr {
u32 max_qp_wqes;
u32 max_qp_sges;
u32 max_cq;
#define BNXT_QPLIB_MAX_CQ_WQES 0xfffff
u32 max_cq_wqes;
u32 max_cq_sges;
u32 max_mr;