diff options
| author |   Parav Pandit <parav@mellanox.com> | 2019-05-02 10:48:03 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-05-03 11:10:02 -0300 |
| commit | a70c07397fd80dfeeaead15751ab71449b548826 (patch) | |
| tree | 7510cecb45238f1f242e54e6c906e144a71a7a0a /drivers/infiniband/hw/hns/hns_roce_ah.c | |
| parent | IB/cm: Reduce dependency on gid attribute ndev check (diff) | |
| download | linux-dev-a70c07397fd80dfeeaead15751ab71449b548826.tar.xz linux-dev-a70c07397fd80dfeeaead15751ab71449b548826.zip | |
RDMA: Introduce and use GID attr helper to read RoCE L2 fields
Instead of RoCE drivers figuring out vlan, smac fields while working on
QP/AH, provide a helper routine to read the L2 fields such as vlan_id and
source mac address.
This moves logic from mlx5 driver to core for wider usage for RoCE ports.
This is a preparation patch to allow detaching netdev in subsequent patch.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_ah.c')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_ah.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_ah.c b/drivers/infiniband/hw/hns/hns_roce_ah.c index d9498313ea46..cdd2ac24fc2a 100644 --- a/drivers/infiniband/hw/hns/hns_roce_ah.c +++ b/drivers/infiniband/hw/hns/hns_roce_ah.c @@ -49,20 +49,22 @@ int hns_roce_create_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr, u16 vlan_tag = 0xffff; const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr); bool vlan_en = false; + int ret; + + gid_attr = ah_attr->grh.sgid_attr; + ret = rdma_read_gid_l2_fields(gid_attr, &vlan_tag, NULL); + if (ret) + return ret; /* Get mac address */ memcpy(ah->av.mac, ah_attr->roce.dmac, ETH_ALEN); - gid_attr = ah_attr->grh.sgid_attr; - if (is_vlan_dev(gid_attr->ndev)) { - vlan_tag = vlan_dev_vlan_id(gid_attr->ndev); + if (vlan_tag < VLAN_CFI_MASK) { vlan_en = true; - } - - if (vlan_tag < 0x1000) vlan_tag |= (rdma_ah_get_sl(ah_attr) & HNS_ROCE_VLAN_SL_BIT_MASK) << HNS_ROCE_VLAN_SL_SHIFT; + } ah->av.port_pd = cpu_to_le32(to_hr_pd(ibah->pd)->pdn | (rdma_ah_get_port_num(ah_attr) << |