diff options
| author | Matan Barak <matanb@mellanox.com> | 2016-01-04 11:49:54 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-01-19 23:26:56 +0300 |
| commit | c3efe7500add077f79d37b18e9c66df6621409b6 (patch) | |
| tree | c58ce0d2c62daabae7a900fd48ea1a45614a1dd0 /drivers/infiniband/core/verbs.c | |
| parent | f7f4b23e27f7561330ef13f93dbe8f2dc410efa7 (diff) | |
| download | linux-c3efe7500add077f79d37b18e9c66df6621409b6.tar.xz | |
IB/core: Use hop-limit from IP stack for RoCE
Previously, IPV6_DEFAULT_HOPLIMIT was used as the hop limit value for
RoCE. Fixing that by taking ip4_dst_hoplimit and ip6_dst_hoplimit as
hop limit values.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/core/verbs.c')
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 97cbc96892a7..5af6d024e053 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -434,6 +434,7 @@ int ib_init_ah_from_wc(struct ib_device *device, u8 port_num, int ret; enum rdma_network_type net_type = RDMA_NETWORK_IB; enum ib_gid_type gid_type = IB_GID_TYPE_IB; + int hoplimit = 0xff; union ib_gid dgid; union ib_gid sgid; @@ -471,7 +472,7 @@ int ib_init_ah_from_wc(struct ib_device *device, u8 port_num, ah_attr->dmac, wc->wc_flags & IB_WC_WITH_VLAN ? NULL : &vlan_id, - &if_index); + &if_index, &hoplimit); if (ret) { dev_put(idev); return ret; @@ -520,7 +521,7 @@ int ib_init_ah_from_wc(struct ib_device *device, u8 port_num, ah_attr->grh.sgid_index = (u8) gid_index; flow_class = be32_to_cpu(grh->version_tclass_flow); ah_attr->grh.flow_label = flow_class & 0xFFFFF; - ah_attr->grh.hop_limit = 0xFF; + ah_attr->grh.hop_limit = hoplimit; ah_attr->grh.traffic_class = (flow_class >> 20) & 0xFF; } return 0; @@ -1138,6 +1139,7 @@ int ib_resolve_eth_dmac(struct ib_qp *qp, union ib_gid sgid; struct ib_gid_attr sgid_attr; int ifindex; + int hop_limit; ret = ib_query_gid(qp->device, qp_attr->ah_attr.port_num, @@ -1149,21 +1151,17 @@ int ib_resolve_eth_dmac(struct ib_qp *qp, ret = -ENXIO; goto out; } - if (sgid_attr.gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) - /* TODO: get the hoplimit from the inet/inet6 - * device - */ - qp_attr->ah_attr.grh.hop_limit = - IPV6_DEFAULT_HOPLIMIT; ifindex = sgid_attr.ndev->ifindex; ret = rdma_addr_find_l2_eth_by_grh(&sgid, &qp_attr->ah_attr.grh.dgid, qp_attr->ah_attr.dmac, - NULL, &ifindex); + NULL, &ifindex, &hop_limit); dev_put(sgid_attr.ndev); + + qp_attr->ah_attr.grh.hop_limit = hop_limit; } } out: |