diff -Nru libibverbs-1.1.8/debian/changelog libibverbs-1.1.8/debian/changelog
--- libibverbs-1.1.8/debian/changelog	2014-08-08 08:59:18.000000000 -0300
+++ libibverbs-1.1.8/debian/changelog	2015-05-07 16:26:04.000000000 -0300
@@ -1,3 +1,9 @@
+libibverbs (1.1.8-1ubuntu2) wily; urgency=medium
+
+  * Add checksum offload support capability (LP: #1409904)
+
+ -- Rafael David Tinoco (Inaddy) <inaddy@ubuntu.com>  Wed, 29 Apr 2015 21:07:34 -0300
+
 libibverbs (1.1.8-1ubuntu1) utopic; urgency=medium
 
   * Merge with Debian; remaining changes:
diff -Nru libibverbs-1.1.8/debian/patches/Add-checksum-offload-support-capability.patch libibverbs-1.1.8/debian/patches/Add-checksum-offload-support-capability.patch
--- libibverbs-1.1.8/debian/patches/Add-checksum-offload-support-capability.patch	1969-12-31 21:00:00.000000000 -0300
+++ libibverbs-1.1.8/debian/patches/Add-checksum-offload-support-capability.patch	2015-05-07 16:25:09.000000000 -0300
@@ -0,0 +1,49 @@
+Description: Add checksum offload support capability flag
+
+Add a device capability flag IB_DEVICE_IP_SUM to denote checksum offload
+support. Devices should set this flag if they support insertion of IP, TCP
+and UDP checksums on outgoing IP packets sent over IB UD or ETH RAW_PACKET QPs.
+
+In addition add a send flag IBV_SEND_IP_CSUM to utilize this capability.
+
+Signed-off-by: Eyal Perry <eyalpe@mellanox.com>
+Signed-off-by: Moshe Lazer <moshel@mellanox.com>
+Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
+
+Origin: https://patchwork.kernel.org/patch/5572101/
+Bug-Ubuntu: https://launchpad.net/bugs/1409904
+Last-Update: 2015-02-09
+
+--- libibverbs-1.1.8.orig/include/infiniband/verbs.h
++++ libibverbs-1.1.8/include/infiniband/verbs.h
+@@ -115,6 +115,7 @@ enum ibv_device_cap_flags {
+ 	IBV_DEVICE_RC_RNR_NAK_GEN	= 1 << 12,
+ 	IBV_DEVICE_SRQ_RESIZE		= 1 << 13,
+ 	IBV_DEVICE_N_NOTIFY_CQ		= 1 << 14,
++	IBV_DEVICE_IP_CSUM 		= 1 << 18,
+ 	IBV_DEVICE_XRC			= 1 << 20,
+ 	IBV_DEVICE_MANAGED_FLOW_STEERING = 1 << 29
+ };
+@@ -627,7 +628,8 @@ enum ibv_send_flags {
+ 	IBV_SEND_FENCE		= 1 << 0,
+ 	IBV_SEND_SIGNALED	= 1 << 1,
+ 	IBV_SEND_SOLICITED	= 1 << 2,
+-	IBV_SEND_INLINE		= 1 << 3
++	IBV_SEND_INLINE		= 1 << 3,
++	IBV_SEND_IP_CSUM	= 1 << 4
+ };
+ 
+ struct ibv_sge {
+--- libibverbs-1.1.8.orig/man/ibv_post_send.3
++++ libibverbs-1.1.8/man/ibv_post_send.3
+@@ -98,6 +98,10 @@ The attribute send_flags describes the p
+ .TP
+ .B IBV_SEND_INLINE \fR Send data in given gather list as inline data
+ in a send WQE.  Valid only for Send and RDMA Write.  The L_Key will not be checked.
++.TP
++.B IBV_SEND_IP_CSUM \fR Offload the IP and TCP/UDP checksum calculation.
++Valid only for QPs with Transport Service Type \fBIBV_QPT_UD\fR or \fBIBV_QPT_RAW_PACKET\fR.
++This feature supported only when \fBIBV_DEVICE_IP_CSUM\fR the flag is set in the device capability flags.
+ .SH "RETURN VALUE"
+ .B ibv_post_send()
+ returns 0 on success, or the value of errno on failure (which indicates the failure reason).
diff -Nru libibverbs-1.1.8/debian/patches/series libibverbs-1.1.8/debian/patches/series
--- libibverbs-1.1.8/debian/patches/series	1969-12-31 21:00:00.000000000 -0300
+++ libibverbs-1.1.8/debian/patches/series	2015-05-07 16:25:09.000000000 -0300
@@ -0,0 +1 @@
+Add-checksum-offload-support-capability.patch