Commit cf909e19 authored by Anirudh Venkataramanan's avatar Anirudh Venkataramanan Committed by Jeff Kirsher
Browse files

ice: Offload SCTP checksum 



This patch adds the ability to offload SCTP checksum calculations to the
NIC.

Signed-off-by: default avatarAnirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent a8939784

drivers/net/ethernet/intel/ice/ice.h

+1 −0
Original line number Diff line number Diff line
@@ -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>

drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h

+1 −0
Original line number Diff line number Diff line
@@ -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 */

};

drivers/net/ethernet/intel/ice/ice_main.c

+1 −0
Original line number Diff line number Diff line
@@ -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 |

drivers/net/ethernet/intel/ice/ice_txrx.c

+6 −0
Original line number Diff line number Diff line
@@ -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;

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