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Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_ah.c')
-rw-r--r--drivers/infiniband/hw/hns/hns_roce_ah.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_ah.c b/drivers/infiniband/hw/hns/hns_roce_ah.c
index 3df032ddda..b4209b6aed 100644
--- a/drivers/infiniband/hw/hns/hns_roce_ah.c
+++ b/drivers/infiniband/hw/hns/hns_roce_ah.c
@@ -57,6 +57,7 @@ int hns_roce_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *init_attr,
struct rdma_ah_attr *ah_attr = init_attr->ah_attr;
const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr);
struct hns_roce_dev *hr_dev = to_hr_dev(ibah->device);
+ struct hns_roce_ib_create_ah_resp resp = {};
struct hns_roce_ah *ah = to_hr_ah(ibah);
int ret = 0;
u32 max_sl;
@@ -92,11 +93,21 @@ int hns_roce_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *init_attr,
ret = rdma_read_gid_l2_fields(ah_attr->grh.sgid_attr,
&ah->av.vlan_id, NULL);
if (ret)
- return ret;
+ goto err_out;
ah->av.vlan_en = ah->av.vlan_id < VLAN_N_VID;
}
+ if (udata) {
+ memcpy(resp.dmac, ah_attr->roce.dmac, ETH_ALEN);
+ ret = ib_copy_to_udata(udata, &resp,
+ min(udata->outlen, sizeof(resp)));
+ }
+
+err_out:
+ if (ret)
+ atomic64_inc(&hr_dev->dfx_cnt[HNS_ROCE_DFX_AH_CREATE_ERR_CNT]);
+
return ret;
}