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RDMA/bnxt_re: Report udp source port for flow_label in bnxt_re_query_qp

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The firmware doesn't capture the flow_label. Therefore the value
that's always returned by qplib_qp->ah.flow_label is 0 whenever
a qp is created. And as per IB spec, udp source port can be reported
for flow_label. Hence reported udp source port for flow_label in
bnxt_re_query_qp by populating the value of qplib_qp->udp_sport
into qp_attr->ah_attr.grh.flow_label.

Signed-off-by: Abhishek Mohapatra <abhishek.mohapatra@broadcom.com>
Signed-off-by: Saravanan Vajravel <saravanan.vajravel@broadcom.com>
Link: https://patch.msgid.link/20250814112555.221665-8-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Abhishek Mohapatra 2025-08-14 16:55:53 +05:30 committed by Leon Romanovsky
parent ef56081d18
commit dc61e916f1
4 changed files with 5 additions and 2 deletions
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2
drivers/infiniband/hw/bnxt_re/ib_verbs.c
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@ -2305,7 +2305,7 @@ int bnxt_re_query_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
qp_attr->pkey_index = qplib_qp->pkey_index;
qp_attr->qkey = qplib_qp->qkey;
qp_attr->ah_attr.type = RDMA_AH_ATTR_TYPE_ROCE;
rdma_ah_set_grh(&qp_attr->ah_attr, NULL, qplib_qp->ah.flow_label,
rdma_ah_set_grh(&qp_attr->ah_attr, NULL, qplib_qp->udp_sport,
qplib_qp->ah.host_sgid_index,
qplib_qp->ah.hop_limit,
qplib_qp->ah.traffic_class);

1
drivers/infiniband/hw/bnxt_re/qplib_fp.c
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@ -1492,6 +1492,7 @@ int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
qp->access = sb->access;
qp->pkey_index = le16_to_cpu(sb->pkey);
qp->qkey = le32_to_cpu(sb->qkey);
qp->udp_sport = le16_to_cpu(sb->udp_src_port);
temp32[0] = le32_to_cpu(sb->dgid[0]);
temp32[1] = le32_to_cpu(sb->dgid[1]);

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

@ -299,6 +299,7 @@ struct bnxt_qplib_qp {
u8 smac[6];
u16 vlan_id;
u16 port_id;
u16 udp_sport;
u8 nw_type;
struct bnxt_qplib_ah ah;

3
drivers/infiniband/hw/bnxt_re/roce_hsi.h
View File

@ -788,7 +788,8 @@ struct creq_query_qp_resp_sb {
#define CREQ_QUERY_QP_RESP_SB_ACCESS_REMOTE_ATOMIC 0x8UL
__le16 pkey;
__le32 qkey;
__le32 reserved32;
__le16 udp_src_port;
__le16 reserved16;
__le32 dgid[4];
__le32 flow_label;
__le16 sgid_index;