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authorParav Pandit <parav@mellanox.com>2019-05-02 10:48:03 +0300
committerJason Gunthorpe <jgg@mellanox.com>2019-05-03 11:10:02 -0300
commita70c07397fd80dfeeaead15751ab71449b548826 (patch)
tree7510cecb45238f1f242e54e6c906e144a71a7a0a /include/rdma
parent8f9748602491295b305960cd2cd4976ad15cb04f (diff)
downloadlinux-a70c07397fd80dfeeaead15751ab71449b548826.tar.gz
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 'include/rdma')
-rw-r--r--include/rdma/ib_cache.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/rdma/ib_cache.h b/include/rdma/ib_cache.h
index 62e990b620aa..730a65ad8c74 100644
--- a/include/rdma/ib_cache.h
+++ b/include/rdma/ib_cache.h
@@ -54,6 +54,9 @@ const struct ib_gid_attr *rdma_find_gid_by_filter(
 		       void *),
 	void *context);
 
+int rdma_read_gid_l2_fields(const struct ib_gid_attr *attr,
+			    u16 *vlan_id, u8 *smac);
+
 /**
  * ib_get_cached_pkey - Returns a cached PKey table entry
  * @device: The device to query.