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| author | Eli Cohen <eli@dev.mellanox.co.il> | 2010-08-26 17:18:59 +0300 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2010-10-25 10:20:39 -0700 |
| commit | af7bd463761c6abd8ca8d831f9cc0ac19f3b7d4b (patch) | |
| tree | 65d997130a892b0da260e308919ed67255a16f77 /drivers/infiniband/core/ucma.c | |
| parent | fa417f7b520ee60b39f7e23528d2030af30a07d1 (diff) | |
| download | linux-stable-af7bd463761c6abd8ca8d831f9cc0ac19f3b7d4b.tar.gz linux-stable-af7bd463761c6abd8ca8d831f9cc0ac19f3b7d4b.tar.bz2 linux-stable-af7bd463761c6abd8ca8d831f9cc0ac19f3b7d4b.zip | |
IB/core: Add VLAN support for IBoE
Add 802.1q VLAN support to IBoE. The VLAN tag is encoded within the
GID derived from a link local address in the following way:
GID[11] GID[12] contain the VLAN ID when the GID contains a VLAN.
The 3 bits user priority field of the packets are identical to the 3
bits of the SL.
In case of rdma_cm apps, the TOS field is used to generate the SL
field by doing a shift right of 5 bits effectively taking to 3 MS bits
of the TOS field.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/core/ucma.c')
| -rw-r--r-- | drivers/infiniband/core/ucma.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index 3d3c9264c450..357a766bd220 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -587,13 +587,21 @@ static void ucma_copy_iboe_route(struct rdma_ucm_query_route_resp *resp, struct rdma_route *route) { struct rdma_dev_addr *dev_addr; + struct net_device *dev; + u16 vid = 0; resp->num_paths = route->num_paths; switch (route->num_paths) { case 0: dev_addr = &route->addr.dev_addr; - iboe_mac_to_ll((union ib_gid *) &resp->ib_route[0].dgid, - dev_addr->dst_dev_addr); + dev = dev_get_by_index(&init_net, dev_addr->bound_dev_if); + if (dev) { + vid = rdma_vlan_dev_vlan_id(dev); + dev_put(dev); + } + + iboe_mac_vlan_to_ll((union ib_gid *) &resp->ib_route[0].dgid, + dev_addr->dst_dev_addr, vid); iboe_addr_get_sgid(dev_addr, (union ib_gid *) &resp->ib_route[0].sgid); resp->ib_route[0].pkey = cpu_to_be16(0xffff); |