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authorParav Pandit <parav@mellanox.com>2019-05-02 10:48:03 +0300
committerJason Gunthorpe <jgg@mellanox.com>2019-05-03 17:10:02 +0300
commita70c07397fd80dfeeaead15751ab71449b548826 (patch)
tree7510cecb45238f1f242e54e6c906e144a71a7a0a /drivers/infiniband/hw/ocrdma/ocrdma_hw.c
parent8f9748602491295b305960cd2cd4976ad15cb04f (diff)
downloadlinux-a70c07397fd80dfeeaead15751ab71449b548826.tar.xz
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/ocrdma/ocrdma_hw.c')
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_hw.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
index 5d96b5a94583..32674b291f60 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
@@ -2496,7 +2496,7 @@ static int ocrdma_set_av_params(struct ocrdma_qp *qp,
int status;
struct rdma_ah_attr *ah_attr = &attrs->ah_attr;
const struct ib_gid_attr *sgid_attr;
- u32 vlan_id = 0xFFFF;
+ u16 vlan_id = 0xFFFF;
u8 mac_addr[6], hdr_type;
union {
struct sockaddr _sockaddr;
@@ -2526,8 +2526,9 @@ static int ocrdma_set_av_params(struct ocrdma_qp *qp,
sizeof(cmd->params.dgid));
sgid_attr = ah_attr->grh.sgid_attr;
- vlan_id = rdma_vlan_dev_vlan_id(sgid_attr->ndev);
- memcpy(mac_addr, sgid_attr->ndev->dev_addr, ETH_ALEN);
+ status = rdma_read_gid_l2_fields(sgid_attr, &vlan_id, &mac_addr[0]);
+ if (status)
+ return status;
qp->sgid_idx = grh->sgid_index;
memcpy(&cmd->params.sgid[0], &sgid_attr->gid.raw[0],