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authorAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>2018-12-19 10:03:32 -0800
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2019-01-15 12:02:27 -0800
commitcf909e19acf373a2e1d9bd877846a11bc8e20a54 (patch)
tree6830f207d013dd9aed2f288b61299e6f78c75912 /drivers
parenta8939784a17a54566e8d8ab26e9a9c36e4598281 (diff)
ice: Offload SCTP checksum
This patch adds the ability to offload SCTP checksum calculations to the NIC. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/intel/ice/ice.h1
-rw-r--r--drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h1
-rw-r--r--drivers/net/ethernet/intel/ice/ice_main.c1
-rw-r--r--drivers/net/ethernet/intel/ice/ice_txrx.c6
4 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h
index ac8bf7491d08..55944e089558 100644
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -26,6 +26,7 @@
#include <linux/bitmap.h>
#include <linux/log2.h>
#include <linux/ip.h>
+#include <linux/sctp.h>
#include <linux/ipv6.h>
#include <linux/if_bridge.h>
#include <linux/avf/virtchnl.h>
diff --git a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
index bb51dd7defb5..bd7c01db8c63 100644
--- a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
+++ b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
@@ -346,6 +346,7 @@ enum ice_tx_desc_cmd_bits {
ICE_TX_DESC_CMD_IIPT_IPV4 = 0x0040, /* 2 BITS */
ICE_TX_DESC_CMD_IIPT_IPV4_CSUM = 0x0060, /* 2 BITS */
ICE_TX_DESC_CMD_L4T_EOFT_TCP = 0x0100, /* 2 BITS */
+ ICE_TX_DESC_CMD_L4T_EOFT_SCTP = 0x0200, /* 2 BITS */
ICE_TX_DESC_CMD_L4T_EOFT_UDP = 0x0300, /* 2 BITS */
};
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index e59f8b29af49..f4bf6bda32a9 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -1528,6 +1528,7 @@ static int ice_cfg_netdev(struct ice_vsi *vsi)
csumo_features = NETIF_F_RXCSUM |
NETIF_F_IP_CSUM |
+ NETIF_F_SCTP_CRC |
NETIF_F_IPV6_CSUM;
vlano_features = NETIF_F_HW_VLAN_CTAG_FILTER |
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c
index 384ac5c82e00..2357fcac996b 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
@@ -1465,6 +1465,12 @@ int ice_tx_csum(struct ice_tx_buf *first, struct ice_tx_offload_params *off)
offset |= l4_len << ICE_TX_DESC_LEN_L4_LEN_S;
break;
case IPPROTO_SCTP:
+ /* enable SCTP checksum offload */
+ cmd |= ICE_TX_DESC_CMD_L4T_EOFT_SCTP;
+ l4_len = sizeof(struct sctphdr) >> 2;
+ offset |= l4_len << ICE_TX_DESC_LEN_L4_LEN_S;
+ break;
+
default:
if (first->tx_flags & ICE_TX_FLAGS_TSO)
return -1;