diff options
| author | Eli Cohen <eli@dev.mellanox.co.il> | 2010-08-26 16:18:59 +0200 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2010-10-25 19:20:39 +0200 |
| commit | af7bd463761c6abd8ca8d831f9cc0ac19f3b7d4b (patch) | |
| tree | 65d997130a892b0da260e308919ed67255a16f77 /include/rdma/ib_pack.h | |
| parent | IB/mlx4: Add support for IBoE (diff) | |
| download | linux-af7bd463761c6abd8ca8d831f9cc0ac19f3b7d4b.tar.xz linux-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 'include/rdma/ib_pack.h')
| -rw-r--r-- | include/rdma/ib_pack.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/rdma/ib_pack.h b/include/rdma/ib_pack.h index 6b91d8e7a1fa..b37fe3b10a9d 100644 --- a/include/rdma/ib_pack.h +++ b/include/rdma/ib_pack.h @@ -38,6 +38,7 @@ enum { IB_LRH_BYTES = 8, IB_ETH_BYTES = 14, + IB_VLAN_BYTES = 4, IB_GRH_BYTES = 40, IB_BTH_BYTES = 12, IB_DETH_BYTES = 8 @@ -219,11 +220,18 @@ struct ib_unpacked_eth { __be16 type; }; +struct ib_unpacked_vlan { + __be16 tag; + __be16 type; +}; + struct ib_ud_header { int lrh_present; struct ib_unpacked_lrh lrh; int eth_present; struct ib_unpacked_eth eth; + int vlan_present; + struct ib_unpacked_vlan vlan; int grh_present; struct ib_unpacked_grh grh; struct ib_unpacked_bth bth; @@ -245,6 +253,7 @@ void ib_unpack(const struct ib_field *desc, void ib_ud_header_init(int payload_bytes, int lrh_present, int eth_present, + int vlan_present, int grh_present, int immediate_present, struct ib_ud_header *header); |