diff options
Diffstat (limited to 'net/smc/smc_ib.c')
| -rw-r--r-- | net/smc/smc_ib.c | 41 |
1 files changed, 36 insertions, 5 deletions
diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c index 4706ab7092a9..2cc64bc8ae20 100644 --- a/net/smc/smc_ib.c +++ b/net/smc/smc_ib.c @@ -68,7 +68,7 @@ static int smc_ib_modify_qp_rtr(struct smc_link *lnk) qp_attr.path_mtu = min(lnk->path_mtu, lnk->peer_mtu); qp_attr.ah_attr.type = RDMA_AH_ATTR_TYPE_ROCE; rdma_ah_set_port_num(&qp_attr.ah_attr, lnk->ibport); - rdma_ah_set_grh(&qp_attr.ah_attr, NULL, 0, 0, 1, 0); + rdma_ah_set_grh(&qp_attr.ah_attr, NULL, 0, lnk->sgid_index, 1, 0); rdma_ah_set_dgid_raw(&qp_attr.ah_attr, lnk->peer_gid); memcpy(&qp_attr.ah_attr.roce.dmac, lnk->peer_mac, sizeof(lnk->peer_mac)); @@ -142,13 +142,13 @@ out: return rc; } -static int smc_ib_fill_gid_and_mac(struct smc_ib_device *smcibdev, u8 ibport) +static int smc_ib_fill_mac(struct smc_ib_device *smcibdev, u8 ibport) { struct ib_gid_attr gattr; + union ib_gid gid; int rc; - rc = ib_query_gid(smcibdev->ibdev, ibport, 0, - &smcibdev->gid[ibport - 1], &gattr); + rc = ib_query_gid(smcibdev->ibdev, ibport, 0, &gid, &gattr); if (rc || !gattr.ndev) return -ENODEV; @@ -175,6 +175,37 @@ bool smc_ib_port_active(struct smc_ib_device *smcibdev, u8 ibport) return smcibdev->pattr[ibport - 1].state == IB_PORT_ACTIVE; } +/* determine the gid for an ib-device port and vlan id */ +int smc_ib_determine_gid(struct smc_ib_device *smcibdev, u8 ibport, + unsigned short vlan_id, u8 gid[], u8 *sgid_index) +{ + struct ib_gid_attr gattr; + union ib_gid _gid; + int i; + + for (i = 0; i < smcibdev->pattr[ibport - 1].gid_tbl_len; i++) { + memset(&_gid, 0, SMC_GID_SIZE); + memset(&gattr, 0, sizeof(gattr)); + if (ib_query_gid(smcibdev->ibdev, ibport, i, &_gid, &gattr)) + continue; + if (!gattr.ndev) + continue; + if (((!vlan_id && !is_vlan_dev(gattr.ndev)) || + (vlan_id && is_vlan_dev(gattr.ndev) && + vlan_dev_vlan_id(gattr.ndev) == vlan_id)) && + gattr.gid_type == IB_GID_TYPE_IB) { + if (gid) + memcpy(gid, &_gid, SMC_GID_SIZE); + if (sgid_index) + *sgid_index = i; + dev_put(gattr.ndev); + return 0; + } + dev_put(gattr.ndev); + } + return -ENODEV; +} + static int smc_ib_remember_port_attr(struct smc_ib_device *smcibdev, u8 ibport) { int rc; @@ -186,7 +217,7 @@ static int smc_ib_remember_port_attr(struct smc_ib_device *smcibdev, u8 ibport) if (rc) goto out; /* the SMC protocol requires specification of the RoCE MAC address */ - rc = smc_ib_fill_gid_and_mac(smcibdev, ibport); + rc = smc_ib_fill_mac(smcibdev, ibport); if (rc) goto out; if (!strncmp(local_systemid, SMC_LOCAL_SYSTEMID_RESET, |