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authorEli Cohen <eli@mellanox.co.il>2008-01-30 18:30:57 +0200
committerRoland Dreier <rolandd@cisco.com>2008-02-08 14:37:56 -0800
commite0605d9199b462454f2f2e5ca01810255a6d5cfa (patch)
treec822a9a89fb74b1768dae4c3660474bc6304a35e /include/rdma
parent7143740d26098aca84ecc7376ccfe2c58fd0412e (diff)
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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>
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/ib_verbs.h14
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 {