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| author | Eli Cohen <eli@mellanox.co.il> | 2008-01-30 18:30:57 +0200 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-02-08 14:37:56 -0800 |
| commit | e0605d9199b462454f2f2e5ca01810255a6d5cfa (patch) | |
| tree | c822a9a89fb74b1768dae4c3660474bc6304a35e | |
| parent | 7143740d26098aca84ecc7376ccfe2c58fd0412e (diff) | |
| download | linux-3.10-e0605d9199b462454f2f2e5ca01810255a6d5cfa.tar.gz linux-3.10-e0605d9199b462454f2f2e5ca01810255a6d5cfa.tar.bz2 linux-3.10-e0605d9199b462454f2f2e5ca01810255a6d5cfa.zip | |
IB/core: Add IP checksum offload support
Add a device capability to show when it can handle checksum offload.
Also add a send flag for inserting checksums and a csum_ok field to
the completion record.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
| -rw-r--r-- | include/rdma/ib_verbs.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index cfbd38fe299..a5a7f9678ab 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -95,7 +95,15 @@ enum ib_device_cap_flags { IB_DEVICE_N_NOTIFY_CQ = (1<<14), IB_DEVICE_ZERO_STAG = (1<<15), IB_DEVICE_SEND_W_INV = (1<<16), - IB_DEVICE_MEM_WINDOW = (1<<17) + IB_DEVICE_MEM_WINDOW = (1<<17), + /* + * Devices should set IB_DEVICE_UD_IP_SUM if they support + * insertion of UDP and TCP checksum on outgoing UD IPoIB + * messages and can verify the validity of checksum for + * incoming messages. Setting this flag implies that the + * IPoIB driver may set NETIF_F_IP_CSUM for datagram mode. + */ + IB_DEVICE_UD_IP_CSUM = (1<<18), }; enum ib_atomic_cap { @@ -431,6 +439,7 @@ struct ib_wc { u8 sl; u8 dlid_path_bits; u8 port_num; /* valid only for DR SMPs on switches */ + int csum_ok; }; enum ib_cq_notify_flags { @@ -615,7 +624,8 @@ enum ib_send_flags { IB_SEND_FENCE = 1, IB_SEND_SIGNALED = (1<<1), IB_SEND_SOLICITED = (1<<2), - IB_SEND_INLINE = (1<<3) + IB_SEND_INLINE = (1<<3), + IB_SEND_IP_CSUM = (1<<4) }; struct ib_sge { |