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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
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>
authored by Eli Cohen and committed by Roland Dreier e0605d91 7143740d
+12
-2
include/rdma/ib_verbs.h
+12
-2
include/rdma/ib_verbs.h
···
95
IB_DEVICE_N_NOTIFY_CQ = (1<<14),
96
IB_DEVICE_ZERO_STAG = (1<<15),
97
IB_DEVICE_SEND_W_INV = (1<<16),
98
-
IB_DEVICE_MEM_WINDOW = (1<<17)
99
};
100
101
enum ib_atomic_cap {
···
439
u8 sl;
440
u8 dlid_path_bits;
441
u8 port_num; /* valid only for DR SMPs on switches */
442
};
443
444
enum ib_cq_notify_flags {
···
624
IB_SEND_FENCE = 1,
625
IB_SEND_SIGNALED = (1<<1),
626
IB_SEND_SOLICITED = (1<<2),
627
-
IB_SEND_INLINE = (1<<3)
628
};
629
630
struct ib_sge {
···
95
IB_DEVICE_N_NOTIFY_CQ = (1<<14),
96
IB_DEVICE_ZERO_STAG = (1<<15),
97
IB_DEVICE_SEND_W_INV = (1<<16),
98
+
IB_DEVICE_MEM_WINDOW = (1<<17),
99
+
/*
100
+
* Devices should set IB_DEVICE_UD_IP_SUM if they support
101
+
* insertion of UDP and TCP checksum on outgoing UD IPoIB
102
+
* messages and can verify the validity of checksum for
103
+
* incoming messages. Setting this flag implies that the
104
+
* IPoIB driver may set NETIF_F_IP_CSUM for datagram mode.
105
+
*/
106
+
IB_DEVICE_UD_IP_CSUM = (1<<18),
107
};
108
109
enum ib_atomic_cap {
···
431
u8 sl;
432
u8 dlid_path_bits;
433
u8 port_num; /* valid only for DR SMPs on switches */
434
+
int csum_ok;
435
};
436
437
enum ib_cq_notify_flags {
···
615
IB_SEND_FENCE = 1,
616
IB_SEND_SIGNALED = (1<<1),
617
IB_SEND_SOLICITED = (1<<2),
618
+
IB_SEND_INLINE = (1<<3),
619
+
IB_SEND_IP_CSUM = (1<<4)
620
};
621
622
struct ib_sge {