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/mlx4 | |
| parent | 8f9748602491295b305960cd2cd4976ad15cb04f (diff) | |
| download | lwn-a70c07397fd80dfeeaead15751ab71449b548826.tar.gz lwn-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/mlx4')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/ah.c | 8 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx4/qp.c | 6 |
2 files changed, 9 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/mlx4/ah.c b/drivers/infiniband/hw/mlx4/ah.c index b53772ab2401..02a169f8027b 100644 --- a/drivers/infiniband/hw/mlx4/ah.c +++ b/drivers/infiniband/hw/mlx4/ah.c @@ -99,9 +99,11 @@ static int create_iboe_ah(struct ib_ah *ib_ah, struct rdma_ah_attr *ah_attr) */ gid_attr = ah_attr->grh.sgid_attr; if (gid_attr) { - if (is_vlan_dev(gid_attr->ndev)) - vlan_tag = vlan_dev_vlan_id(gid_attr->ndev); - memcpy(ah->av.eth.s_mac, gid_attr->ndev->dev_addr, ETH_ALEN); + ret = rdma_read_gid_l2_fields(gid_attr, &vlan_tag, + &ah->av.eth.s_mac[0]); + if (ret) + return ret; + ret = mlx4_ib_gid_index_to_real_index(ibdev, gid_attr); if (ret < 0) return ret; diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 364e16b5f8e1..bb1c6eb31b32 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -2248,8 +2248,10 @@ static int __mlx4_ib_modify_qp(void *src, enum mlx4_ib_source_type src_type, if (is_eth) { gid_attr = attr->ah_attr.grh.sgid_attr; - vlan = rdma_vlan_dev_vlan_id(gid_attr->ndev); - memcpy(smac, gid_attr->ndev->dev_addr, ETH_ALEN); + err = rdma_read_gid_l2_fields(gid_attr, &vlan, + &smac[0]); + if (err) + goto out; } if (mlx4_set_path(dev, attr, attr_mask, qp, &context->pri_path, |