Google GitGoogle Git
Sign in
android-kvm/linux/fbd97dd1d3ce32d32fb7be86acc3fdb7c04fa043/./drivers/net/ethernet/intel/ice/virt/rss.c
blob: 960012ca91b53fa23a9a37d184636354018936c5 [file]
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2022, Intel Corporation. */
#include "rss.h"
#include "ice_vf_lib_private.h"
#include "ice.h"
#define FIELD_SELECTOR(proto_hdr_field) \
BIT((proto_hdr_field) & PROTO_HDR_FIELD_MASK)
struct ice_vc_hdr_match_type {
u32 vc_hdr; /* virtchnl headers (VIRTCHNL_PROTO_HDR_XXX) */
u32 ice_hdr; /* ice headers (ICE_FLOW_SEG_HDR_XXX) */
};
static const struct ice_vc_hdr_match_type ice_vc_hdr_list[] = {
{VIRTCHNL_PROTO_HDR_NONE, ICE_FLOW_SEG_HDR_NONE},
{VIRTCHNL_PROTO_HDR_ETH, ICE_FLOW_SEG_HDR_ETH},
{VIRTCHNL_PROTO_HDR_S_VLAN, ICE_FLOW_SEG_HDR_VLAN},
{VIRTCHNL_PROTO_HDR_C_VLAN, ICE_FLOW_SEG_HDR_VLAN},
{VIRTCHNL_PROTO_HDR_IPV4, ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER},
{VIRTCHNL_PROTO_HDR_IPV6, ICE_FLOW_SEG_HDR_IPV6 |
ICE_FLOW_SEG_HDR_IPV_OTHER},
{VIRTCHNL_PROTO_HDR_TCP, ICE_FLOW_SEG_HDR_TCP},
{VIRTCHNL_PROTO_HDR_UDP, ICE_FLOW_SEG_HDR_UDP},
{VIRTCHNL_PROTO_HDR_SCTP, ICE_FLOW_SEG_HDR_SCTP},
{VIRTCHNL_PROTO_HDR_PPPOE, ICE_FLOW_SEG_HDR_PPPOE},
{VIRTCHNL_PROTO_HDR_GTPU_IP, ICE_FLOW_SEG_HDR_GTPU_IP},
{VIRTCHNL_PROTO_HDR_GTPU_EH, ICE_FLOW_SEG_HDR_GTPU_EH},
{VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN,
ICE_FLOW_SEG_HDR_GTPU_DWN},
{VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP,
ICE_FLOW_SEG_HDR_GTPU_UP},
{VIRTCHNL_PROTO_HDR_L2TPV3, ICE_FLOW_SEG_HDR_L2TPV3},
{VIRTCHNL_PROTO_HDR_ESP, ICE_FLOW_SEG_HDR_ESP},
{VIRTCHNL_PROTO_HDR_AH, ICE_FLOW_SEG_HDR_AH},
{VIRTCHNL_PROTO_HDR_PFCP, ICE_FLOW_SEG_HDR_PFCP_SESSION},
{VIRTCHNL_PROTO_HDR_GTPC, ICE_FLOW_SEG_HDR_GTPC},
{VIRTCHNL_PROTO_HDR_L2TPV2, ICE_FLOW_SEG_HDR_L2TPV2},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG, ICE_FLOW_SEG_HDR_IPV_FRAG},
{VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG, ICE_FLOW_SEG_HDR_IPV_FRAG},
{VIRTCHNL_PROTO_HDR_GRE, ICE_FLOW_SEG_HDR_GRE},
};
struct ice_vc_hash_field_match_type {
u32 vc_hdr; /* virtchnl headers
* (VIRTCHNL_PROTO_HDR_XXX)
*/
u32 vc_hash_field; /* virtchnl hash fields selector
* FIELD_SELECTOR((VIRTCHNL_PROTO_HDR_ETH_XXX))
*/
u64 ice_hash_field; /* ice hash fields
* (BIT_ULL(ICE_FLOW_FIELD_IDX_XXX))
*/
};
static const struct
ice_vc_hash_field_match_type ice_vc_hash_field_list[] = {
{VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC),
BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_SA)},
{VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST),
BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_DA)},
{VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST),
ICE_FLOW_HASH_ETH},
{VIRTCHNL_PROTO_HDR_ETH,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE),
BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_TYPE)},
{VIRTCHNL_PROTO_HDR_S_VLAN,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_S_VLAN_ID),
BIT_ULL(ICE_FLOW_FIELD_IDX_S_VLAN)},
{VIRTCHNL_PROTO_HDR_C_VLAN,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_C_VLAN_ID),
BIT_ULL(ICE_FLOW_FIELD_IDX_C_VLAN)},
{VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
{VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
{VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST),
ICE_FLOW_HASH_IPV4},
{VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
{VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
{VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
{VIRTCHNL_PROTO_HDR_IPV4,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_FRAG_PKID),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_ID)},
{VIRTCHNL_PROTO_HDR_IPV4,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST),
ICE_FLOW_HASH_IPV4},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_FRAG_PKID),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_ID)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV4_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_CHKSUM)},
{VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
{VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
{VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST),
ICE_FLOW_HASH_IPV6},
{VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
{VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
{VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
ICE_FLOW_HASH_IPV6 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
{VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
{VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG_PKID),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_ID)},
{VIRTCHNL_PROTO_HDR_IPV6,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PREFIX64_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PREFIX64_DST),
ICE_FLOW_HASH_IPV6_PRE64},
{VIRTCHNL_PROTO_HDR_IPV6,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PREFIX64_SRC),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PRE64_SA)},
{VIRTCHNL_PROTO_HDR_IPV6,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PREFIX64_DST),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PRE64_DA)},
{VIRTCHNL_PROTO_HDR_IPV6,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PREFIX64_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PREFIX64_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
ICE_FLOW_HASH_IPV6_PRE64 |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
{VIRTCHNL_PROTO_HDR_IPV6,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PREFIX64_SRC) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PRE64_SA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
{VIRTCHNL_PROTO_HDR_IPV6,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PREFIX64_DST) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PRE64_DA) |
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
{VIRTCHNL_PROTO_HDR_TCP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT),
BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
{VIRTCHNL_PROTO_HDR_TCP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT),
BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
{VIRTCHNL_PROTO_HDR_TCP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT),
ICE_FLOW_HASH_TCP_PORT},
{VIRTCHNL_PROTO_HDR_TCP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_CHKSUM)},
{VIRTCHNL_PROTO_HDR_TCP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_CHKSUM)},
{VIRTCHNL_PROTO_HDR_TCP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_CHKSUM)},
{VIRTCHNL_PROTO_HDR_TCP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_CHKSUM),
ICE_FLOW_HASH_TCP_PORT |
BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_CHKSUM)},
{VIRTCHNL_PROTO_HDR_UDP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT),
BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
{VIRTCHNL_PROTO_HDR_UDP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT),
BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
{VIRTCHNL_PROTO_HDR_UDP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT),
ICE_FLOW_HASH_UDP_PORT},
{VIRTCHNL_PROTO_HDR_UDP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_CHKSUM)},
{VIRTCHNL_PROTO_HDR_UDP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_CHKSUM)},
{VIRTCHNL_PROTO_HDR_UDP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_CHKSUM)},
{VIRTCHNL_PROTO_HDR_UDP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_CHKSUM),
ICE_FLOW_HASH_UDP_PORT |
BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_CHKSUM)},
{VIRTCHNL_PROTO_HDR_SCTP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT),
BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
{VIRTCHNL_PROTO_HDR_SCTP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT),
BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
{VIRTCHNL_PROTO_HDR_SCTP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT),
ICE_FLOW_HASH_SCTP_PORT},
{VIRTCHNL_PROTO_HDR_SCTP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_CHKSUM)},
{VIRTCHNL_PROTO_HDR_SCTP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_CHKSUM)},
{VIRTCHNL_PROTO_HDR_SCTP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_CHKSUM),
BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT) |
BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_CHKSUM)},
{VIRTCHNL_PROTO_HDR_SCTP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT) |
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_CHKSUM),
ICE_FLOW_HASH_SCTP_PORT |
BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_CHKSUM)},
{VIRTCHNL_PROTO_HDR_PPPOE,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PPPOE_SESS_ID),
BIT_ULL(ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID)},
{VIRTCHNL_PROTO_HDR_GTPU_IP,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_GTPU_IP_TEID),
BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_IP_TEID)},
{VIRTCHNL_PROTO_HDR_L2TPV3,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID),
BIT_ULL(ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID)},
{VIRTCHNL_PROTO_HDR_ESP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ESP_SPI),
BIT_ULL(ICE_FLOW_FIELD_IDX_ESP_SPI)},
{VIRTCHNL_PROTO_HDR_AH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_AH_SPI),
BIT_ULL(ICE_FLOW_FIELD_IDX_AH_SPI)},
{VIRTCHNL_PROTO_HDR_PFCP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PFCP_SEID),
BIT_ULL(ICE_FLOW_FIELD_IDX_PFCP_SEID)},
{VIRTCHNL_PROTO_HDR_GTPC,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_GTPC_TEID),
BIT_ULL(ICE_FLOW_FIELD_IDX_GTPC_TEID)},
{VIRTCHNL_PROTO_HDR_L2TPV2,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_L2TPV2_SESS_ID),
BIT_ULL(ICE_FLOW_FIELD_IDX_L2TPV2_SESS_ID)},
{VIRTCHNL_PROTO_HDR_L2TPV2,
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_L2TPV2_LEN_SESS_ID),
BIT_ULL(ICE_FLOW_FIELD_IDX_L2TPV2_LEN_SESS_ID)},
};
static int
ice_vc_rss_hash_update(struct ice_hw *hw, struct ice_vsi *vsi, u8 hash_type)
{
struct ice_vsi_ctx *ctx;
int ret;
ctx = kzalloc_obj(*ctx);
if (!ctx)
return -ENOMEM;
/* clear previous hash_type */
ctx->info.q_opt_rss = vsi->info.q_opt_rss &
~ICE_AQ_VSI_Q_OPT_RSS_HASH_M;
/* hash_type is passed in as ICE_AQ_VSI_Q_OPT_RSS_<XOR|TPLZ|SYM_TPLZ */
ctx->info.q_opt_rss |= FIELD_PREP(ICE_AQ_VSI_Q_OPT_RSS_HASH_M,
hash_type);
/* Preserve existing queueing option setting */
ctx->info.q_opt_tc = vsi->info.q_opt_tc;
ctx->info.q_opt_flags = vsi->info.q_opt_flags;
ctx->info.valid_sections =
cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID);
ret = ice_update_vsi(hw, vsi->idx, ctx, NULL);
if (ret) {
dev_err(ice_hw_to_dev(hw), "update VSI for RSS failed, err %d aq_err %s\n",
ret, libie_aq_str(hw->adminq.sq_last_status));
} else {
vsi->info.q_opt_rss = ctx->info.q_opt_rss;
}
kfree(ctx);
return ret;
}
/**
* ice_vc_validate_pattern
* @vf: pointer to the VF info
* @proto: virtchnl protocol headers
*
* validate the pattern is supported or not.
*
* Return: true on success, false on error.
*/
bool
ice_vc_validate_pattern(struct ice_vf *vf, struct virtchnl_proto_hdrs *proto)
{
bool is_ipv4 = false;
bool is_ipv6 = false;
bool is_udp = false;
u16 ptype = -1;
int i = 0;
while (i < proto->count &&
proto->proto_hdr[i].type != VIRTCHNL_PROTO_HDR_NONE) {
switch (proto->proto_hdr[i].type) {
case VIRTCHNL_PROTO_HDR_ETH:
ptype = ICE_PTYPE_MAC_PAY;
break;
case VIRTCHNL_PROTO_HDR_IPV4:
ptype = ICE_PTYPE_IPV4_PAY;
is_ipv4 = true;
break;
case VIRTCHNL_PROTO_HDR_IPV6:
ptype = ICE_PTYPE_IPV6_PAY;
is_ipv6 = true;
break;
case VIRTCHNL_PROTO_HDR_UDP:
if (is_ipv4)
ptype = ICE_PTYPE_IPV4_UDP_PAY;
else if (is_ipv6)
ptype = ICE_PTYPE_IPV6_UDP_PAY;
is_udp = true;
break;
case VIRTCHNL_PROTO_HDR_TCP:
if (is_ipv4)
ptype = ICE_PTYPE_IPV4_TCP_PAY;
else if (is_ipv6)
ptype = ICE_PTYPE_IPV6_TCP_PAY;
break;
case VIRTCHNL_PROTO_HDR_SCTP:
if (is_ipv4)
ptype = ICE_PTYPE_IPV4_SCTP_PAY;
else if (is_ipv6)
ptype = ICE_PTYPE_IPV6_SCTP_PAY;
break;
case VIRTCHNL_PROTO_HDR_GTPU_IP:
case VIRTCHNL_PROTO_HDR_GTPU_EH:
if (is_ipv4)
ptype = ICE_MAC_IPV4_GTPU;
else if (is_ipv6)
ptype = ICE_MAC_IPV6_GTPU;
goto out;
case VIRTCHNL_PROTO_HDR_L2TPV3:
if (is_ipv4)
ptype = ICE_MAC_IPV4_L2TPV3;
else if (is_ipv6)
ptype = ICE_MAC_IPV6_L2TPV3;
goto out;
case VIRTCHNL_PROTO_HDR_ESP:
if (is_ipv4)
ptype = is_udp ? ICE_MAC_IPV4_NAT_T_ESP :
ICE_MAC_IPV4_ESP;
else if (is_ipv6)
ptype = is_udp ? ICE_MAC_IPV6_NAT_T_ESP :
ICE_MAC_IPV6_ESP;
goto out;
case VIRTCHNL_PROTO_HDR_AH:
if (is_ipv4)
ptype = ICE_MAC_IPV4_AH;
else if (is_ipv6)
ptype = ICE_MAC_IPV6_AH;
goto out;
case VIRTCHNL_PROTO_HDR_PFCP:
if (is_ipv4)
ptype = ICE_MAC_IPV4_PFCP_SESSION;
else if (is_ipv6)
ptype = ICE_MAC_IPV6_PFCP_SESSION;
goto out;
default:
break;
}
i++;
}
out:
return ice_hw_ptype_ena(&vf->pf->hw, ptype);
}
/**
* ice_vc_parse_rss_cfg - parses hash fields and headers from
* a specific virtchnl RSS cfg
* @hw: pointer to the hardware
* @rss_cfg: pointer to the virtchnl RSS cfg
* @hash_cfg: pointer to the HW hash configuration
*
* Return true if all the protocol header and hash fields in the RSS cfg could
* be parsed, else return false
*
* This function parses the virtchnl RSS cfg to be the intended
* hash fields and the intended header for RSS configuration
*/
static bool ice_vc_parse_rss_cfg(struct ice_hw *hw,
struct virtchnl_rss_cfg *rss_cfg,
struct ice_rss_hash_cfg *hash_cfg)
{
const struct ice_vc_hash_field_match_type *hf_list;
const struct ice_vc_hdr_match_type *hdr_list;
int i, hf_list_len, hdr_list_len;
bool outer_ipv4 = false;
bool outer_ipv6 = false;
bool inner_hdr = false;
bool has_gre = false;
u32 *addl_hdrs = &hash_cfg->addl_hdrs;
u64 *hash_flds = &hash_cfg->hash_flds;
/* set outer layer RSS as default */
hash_cfg->hdr_type = ICE_RSS_OUTER_HEADERS;
if (rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC)
hash_cfg->symm = true;
else
hash_cfg->symm = false;
hf_list = ice_vc_hash_field_list;
hf_list_len = ARRAY_SIZE(ice_vc_hash_field_list);
hdr_list = ice_vc_hdr_list;
hdr_list_len = ARRAY_SIZE(ice_vc_hdr_list);
for (i = 0; i < rss_cfg->proto_hdrs.count; i++) {
struct virtchnl_proto_hdr *proto_hdr =
&rss_cfg->proto_hdrs.proto_hdr[i];
u32 hdr_found = 0;
int j;
/* Find matched ice headers according to virtchnl headers.
* Also figure out the outer type of GTPU headers.
*/
for (j = 0; j < hdr_list_len; j++) {
struct ice_vc_hdr_match_type hdr_map = hdr_list[j];
if (proto_hdr->type == hdr_map.vc_hdr)
hdr_found = hdr_map.ice_hdr;
}
if (!hdr_found)
return false;
/* Find matched ice hash fields according to
* virtchnl hash fields.
*/
for (j = 0; j < hf_list_len; j++) {
struct ice_vc_hash_field_match_type hf_map = hf_list[j];
if (proto_hdr->type == hf_map.vc_hdr &&
proto_hdr->field_selector == hf_map.vc_hash_field) {
*hash_flds |= hf_map.ice_hash_field;
break;
}
}
if (proto_hdr->type == VIRTCHNL_PROTO_HDR_IPV4 && !inner_hdr)
outer_ipv4 = true;
else if (proto_hdr->type == VIRTCHNL_PROTO_HDR_IPV6 &&
!inner_hdr)
outer_ipv6 = true;
/* for GRE and L2TPv2, take inner header as input set if no
* any field is selected from outer headers.
* for GTPU, take inner header and GTPU teid as input set.
*/
else if ((proto_hdr->type == VIRTCHNL_PROTO_HDR_GTPU_IP ||
proto_hdr->type == VIRTCHNL_PROTO_HDR_GTPU_EH ||
proto_hdr->type == VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN ||
proto_hdr->type ==
VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP) ||
((proto_hdr->type == VIRTCHNL_PROTO_HDR_L2TPV2 ||
proto_hdr->type == VIRTCHNL_PROTO_HDR_GRE) &&
*hash_flds == 0)) {
/* set inner_hdr flag, and clean up outer header */
inner_hdr = true;
/* clear outer headers */
*addl_hdrs = 0;
if (outer_ipv4 && outer_ipv6)
return false;
if (outer_ipv4)
hash_cfg->hdr_type = ICE_RSS_INNER_HEADERS_W_OUTER_IPV4;
else if (outer_ipv6)
hash_cfg->hdr_type = ICE_RSS_INNER_HEADERS_W_OUTER_IPV6;
else
hash_cfg->hdr_type = ICE_RSS_INNER_HEADERS;
if (has_gre && outer_ipv4)
hash_cfg->hdr_type =
ICE_RSS_INNER_HEADERS_W_OUTER_IPV4_GRE;
if (has_gre && outer_ipv6)
hash_cfg->hdr_type =
ICE_RSS_INNER_HEADERS_W_OUTER_IPV6_GRE;
if (proto_hdr->type == VIRTCHNL_PROTO_HDR_GRE)
has_gre = true;
}
*addl_hdrs |= hdr_found;
/* refine hash hdrs and fields for IP fragment */
if (VIRTCHNL_TEST_PROTO_HDR_FIELD(proto_hdr,
VIRTCHNL_PROTO_HDR_IPV4_FRAG_PKID) &&
proto_hdr->type == VIRTCHNL_PROTO_HDR_IPV4_FRAG) {
*addl_hdrs |= ICE_FLOW_SEG_HDR_IPV_FRAG;
*addl_hdrs &= ~(ICE_FLOW_SEG_HDR_IPV_OTHER);
*hash_flds |= BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_ID);
VIRTCHNL_DEL_PROTO_HDR_FIELD(proto_hdr,
VIRTCHNL_PROTO_HDR_IPV4_FRAG_PKID);
}
if (VIRTCHNL_TEST_PROTO_HDR_FIELD(proto_hdr,
VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG_PKID) &&
proto_hdr->type == VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG) {
*addl_hdrs |= ICE_FLOW_SEG_HDR_IPV_FRAG;
*addl_hdrs &= ~(ICE_FLOW_SEG_HDR_IPV_OTHER);
*hash_flds |= BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_ID);
VIRTCHNL_DEL_PROTO_HDR_FIELD(proto_hdr,
VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG_PKID);
}
}
/* refine gtpu header if we take outer as input set for a no inner
* ip gtpu flow.
*/
if (hash_cfg->hdr_type == ICE_RSS_OUTER_HEADERS &&
*addl_hdrs & ICE_FLOW_SEG_HDR_GTPU_IP) {
*addl_hdrs &= ~(ICE_FLOW_SEG_HDR_GTPU_IP);
*addl_hdrs |= ICE_FLOW_SEG_HDR_GTPU_NON_IP;
}
/* refine hash field for esp and nat-t-esp. */
if ((*addl_hdrs & ICE_FLOW_SEG_HDR_UDP) &&
(*addl_hdrs & ICE_FLOW_SEG_HDR_ESP)) {
*addl_hdrs &= ~(ICE_FLOW_SEG_HDR_ESP | ICE_FLOW_SEG_HDR_UDP);
*addl_hdrs |= ICE_FLOW_SEG_HDR_NAT_T_ESP;
*hash_flds &= ~(BIT_ULL(ICE_FLOW_FIELD_IDX_ESP_SPI));
*hash_flds |= BIT_ULL(ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI);
}
/* refine hash hdrs for L4 udp/tcp/sctp. */
if (*addl_hdrs & (ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP |
ICE_FLOW_SEG_HDR_SCTP) &&
*addl_hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)
*addl_hdrs &= ~ICE_FLOW_SEG_HDR_IPV_OTHER;
return true;
}
/**
* ice_vf_adv_rss_offload_ena - determine if capabilities support advanced
* RSS offloads
* @caps: VF driver negotiated capabilities
*
* Return true if VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF capability is set,
* else return false
*/
static bool ice_vf_adv_rss_offload_ena(u32 caps)
{
return !!(caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF);
}
/**
* ice_is_hash_cfg_valid - Check whether an RSS hash context is valid
* @cfg: RSS hash configuration to test
*
* Return: true if both @cfg->hash_flds and @cfg->addl_hdrs are non-zero; false otherwise.
*/
static bool ice_is_hash_cfg_valid(struct ice_rss_hash_cfg *cfg)
{
return cfg->hash_flds && cfg->addl_hdrs;
}
/**
* ice_hash_cfg_reset - Reset an RSS hash context
* @cfg: RSS hash configuration to reset
*
* Reset fields of @cfg that store the active rule information.
*/
static void ice_hash_cfg_reset(struct ice_rss_hash_cfg *cfg)
{
cfg->hash_flds = 0;
cfg->addl_hdrs = 0;
cfg->hdr_type = ICE_RSS_OUTER_HEADERS;
cfg->symm = 0;
}
/**
* ice_hash_cfg_record - Record an RSS hash context
* @ctx: destination (global) RSS hash configuration
* @cfg: source RSS hash configuration to record
*
* Copy the active rule information from @cfg into @ctx.
*/
static void ice_hash_cfg_record(struct ice_rss_hash_cfg *ctx,
struct ice_rss_hash_cfg *cfg)
{
ctx->hash_flds = cfg->hash_flds;
ctx->addl_hdrs = cfg->addl_hdrs;
ctx->hdr_type = cfg->hdr_type;
ctx->symm = cfg->symm;
}
/**
* ice_hash_moveout - Delete an RSS configuration (keep context)
* @vf: VF pointer
* @cfg: RSS hash configuration
*
* Return: 0 on success (including when already absent); -ENOENT if @cfg is
* invalid or VSI is missing; -EBUSY on hardware removal failure.
*/
static int
ice_hash_moveout(struct ice_vf *vf, struct ice_rss_hash_cfg *cfg)
{
struct device *dev = ice_pf_to_dev(vf->pf);
struct ice_vsi *vsi = ice_get_vf_vsi(vf);
struct ice_hw *hw = &vf->pf->hw;
int ret;
if (!ice_is_hash_cfg_valid(cfg) || !vsi)
return -ENOENT;
ret = ice_rem_rss_cfg(hw, vsi->idx, cfg);
if (ret && ret != -ENOENT) {
dev_err(dev, "ice_rem_rss_cfg failed for VF %d, VSI %d, error:%d\n",
vf->vf_id, vf->lan_vsi_idx, ret);
return -EBUSY;
}
return 0;
}
/**
* ice_hash_moveback - Add an RSS hash configuration for a VF
* @vf: VF pointer
* @cfg: RSS hash configuration to apply
*
* Add @cfg to @vf if the context is valid and VSI exists; programs HW.
*
* Return:
* * 0 on success
* * -ENOENT if @cfg is invalid or VSI is missing
* * -EBUSY if hardware programming fails
*/
static int
ice_hash_moveback(struct ice_vf *vf, struct ice_rss_hash_cfg *cfg)
{
struct device *dev = ice_pf_to_dev(vf->pf);
struct ice_vsi *vsi = ice_get_vf_vsi(vf);
struct ice_hw *hw = &vf->pf->hw;
int ret;
if (!ice_is_hash_cfg_valid(cfg) || !vsi)
return -ENOENT;
ret = ice_add_rss_cfg(hw, vsi, cfg);
if (ret) {
dev_err(dev, "ice_add_rss_cfg failed for VF %d, VSI %d, error:%d\n",
vf->vf_id, vf->lan_vsi_idx, ret);
return -EBUSY;
}
return 0;
}
/**
* ice_hash_remove - remove a RSS configuration
* @vf: pointer to the VF info
* @cfg: pointer to the RSS hash configuration
*
* This function will delete a RSS hash configuration and also delete the
* hash context which stores the rule info.
*
* Return: 0 on success, or a negative error code on failure.
*/
static int
ice_hash_remove(struct ice_vf *vf, struct ice_rss_hash_cfg *cfg)
{
int ret;
ret = ice_hash_moveout(vf, cfg);
if (ret && ret != -ENOENT)
return ret;
ice_hash_cfg_reset(cfg);
return 0;
}
struct ice_gtpu_ctx_action {
u32 ctx_idx;
const u32 *remove_list;
int remove_count;
const u32 *moveout_list;
int moveout_count;
};
/**
* ice_add_rss_cfg_pre_gtpu - Pre-process the GTPU RSS configuration
* @vf: pointer to the VF info
* @ctx: pointer to the context of the GTPU hash
* @ctx_idx: index of the hash context
*
* Pre-processes the GTPU hash configuration before adding a new
* hash context. It removes or reorders existing hash configurations that may
* conflict with the new one. For example, if a GTPU_UP or GTPU_DWN rule is
* configured after a GTPU_EH rule, the GTPU_EH hash will be matched first due
* to TCAM write and match order (top-down). In such cases, the GTPU_EH rule
* must be moved after the GTPU_UP/DWN rule. Conversely, if a GTPU_EH rule is
* configured after a GTPU_UP/DWN rule, the UP/DWN rules should be removed to
* avoid conflict.
*
* Return: 0 on success or a negative error code on failure
*/
static int ice_add_rss_cfg_pre_gtpu(struct ice_vf *vf,
struct ice_vf_hash_gtpu_ctx *ctx,
u32 ctx_idx)
{
int ret, i;
static const u32 remove_eh_ip[] = {
ICE_HASH_GTPU_CTX_EH_IP_UDP, ICE_HASH_GTPU_CTX_EH_IP_TCP,
ICE_HASH_GTPU_CTX_UP_IP, ICE_HASH_GTPU_CTX_UP_IP_UDP,
ICE_HASH_GTPU_CTX_UP_IP_TCP, ICE_HASH_GTPU_CTX_DW_IP,
ICE_HASH_GTPU_CTX_DW_IP_UDP, ICE_HASH_GTPU_CTX_DW_IP_TCP,
};
static const u32 remove_eh_ip_udp[] = {
ICE_HASH_GTPU_CTX_UP_IP_UDP,
ICE_HASH_GTPU_CTX_DW_IP_UDP,
};
static const u32 moveout_eh_ip_udp[] = {
ICE_HASH_GTPU_CTX_UP_IP,
ICE_HASH_GTPU_CTX_UP_IP_TCP,
ICE_HASH_GTPU_CTX_DW_IP,
ICE_HASH_GTPU_CTX_DW_IP_TCP,
};
static const u32 remove_eh_ip_tcp[] = {
ICE_HASH_GTPU_CTX_UP_IP_TCP,
ICE_HASH_GTPU_CTX_DW_IP_TCP,
};
static const u32 moveout_eh_ip_tcp[] = {
ICE_HASH_GTPU_CTX_UP_IP,
ICE_HASH_GTPU_CTX_UP_IP_UDP,
ICE_HASH_GTPU_CTX_DW_IP,
ICE_HASH_GTPU_CTX_DW_IP_UDP,
};
static const u32 remove_up_ip[] = {
ICE_HASH_GTPU_CTX_UP_IP_UDP,
ICE_HASH_GTPU_CTX_UP_IP_TCP,
};
static const u32 moveout_up_ip[] = {
ICE_HASH_GTPU_CTX_EH_IP,
ICE_HASH_GTPU_CTX_EH_IP_UDP,
ICE_HASH_GTPU_CTX_EH_IP_TCP,
};
static const u32 moveout_up_ip_udp_tcp[] = {
ICE_HASH_GTPU_CTX_EH_IP,
ICE_HASH_GTPU_CTX_EH_IP_UDP,
ICE_HASH_GTPU_CTX_EH_IP_TCP,
};
static const u32 remove_dw_ip[] = {
ICE_HASH_GTPU_CTX_DW_IP_UDP,
ICE_HASH_GTPU_CTX_DW_IP_TCP,
};
static const u32 moveout_dw_ip[] = {
ICE_HASH_GTPU_CTX_EH_IP,
ICE_HASH_GTPU_CTX_EH_IP_UDP,
ICE_HASH_GTPU_CTX_EH_IP_TCP,
};
static const struct ice_gtpu_ctx_action actions[] = {
{ ICE_HASH_GTPU_CTX_EH_IP, remove_eh_ip,
ARRAY_SIZE(remove_eh_ip), NULL, 0 },
{ ICE_HASH_GTPU_CTX_EH_IP_UDP, remove_eh_ip_udp,
ARRAY_SIZE(remove_eh_ip_udp), moveout_eh_ip_udp,
ARRAY_SIZE(moveout_eh_ip_udp) },
{ ICE_HASH_GTPU_CTX_EH_IP_TCP, remove_eh_ip_tcp,
ARRAY_SIZE(remove_eh_ip_tcp), moveout_eh_ip_tcp,
ARRAY_SIZE(moveout_eh_ip_tcp) },
{ ICE_HASH_GTPU_CTX_UP_IP, remove_up_ip,
ARRAY_SIZE(remove_up_ip), moveout_up_ip,
ARRAY_SIZE(moveout_up_ip) },
{ ICE_HASH_GTPU_CTX_UP_IP_UDP, NULL, 0, moveout_up_ip_udp_tcp,
ARRAY_SIZE(moveout_up_ip_udp_tcp) },
{ ICE_HASH_GTPU_CTX_UP_IP_TCP, NULL, 0, moveout_up_ip_udp_tcp,
ARRAY_SIZE(moveout_up_ip_udp_tcp) },
{ ICE_HASH_GTPU_CTX_DW_IP, remove_dw_ip,
ARRAY_SIZE(remove_dw_ip), moveout_dw_ip,
ARRAY_SIZE(moveout_dw_ip) },
{ ICE_HASH_GTPU_CTX_DW_IP_UDP, NULL, 0, moveout_dw_ip,
ARRAY_SIZE(moveout_dw_ip) },
{ ICE_HASH_GTPU_CTX_DW_IP_TCP, NULL, 0, moveout_dw_ip,
ARRAY_SIZE(moveout_dw_ip) },
};
for (i = 0; i < ARRAY_SIZE(actions); i++) {
if (actions[i].ctx_idx != ctx_idx)
continue;
if (actions[i].remove_list) {
for (int j = 0; j < actions[i].remove_count; j++) {
u16 rm = actions[i].remove_list[j];
ret = ice_hash_remove(vf, &ctx->ctx[rm]);
if (ret && ret != -ENOENT)
return ret;
}
}
if (actions[i].moveout_list) {
for (int j = 0; j < actions[i].moveout_count; j++) {
u16 mv = actions[i].moveout_list[j];
ret = ice_hash_moveout(vf, &ctx->ctx[mv]);
if (ret && ret != -ENOENT)
return ret;
}
}
break;
}
return 0;
}
/**
* ice_add_rss_cfg_pre_ip - Pre-process IP-layer RSS configuration
* @vf: VF pointer
* @ctx: IP L4 hash context (ESP/UDP-ESP/AH/PFCP and UDP/TCP/SCTP)
*
* Remove covered/recorded IP RSS configurations prior to adding a new one.
*
* Return: 0 on success; negative error code on failure.
*/
static int
ice_add_rss_cfg_pre_ip(struct ice_vf *vf, struct ice_vf_hash_ip_ctx *ctx)
{
int i, ret;
for (i = 1; i < ICE_HASH_IP_CTX_MAX; i++)
if (ice_is_hash_cfg_valid(&ctx->ctx[i])) {
ret = ice_hash_remove(vf, &ctx->ctx[i]);
if (ret)
return ret;
}
return 0;
}
/**
* ice_calc_gtpu_ctx_idx - Calculate GTPU hash context index
* @hdrs: Bitmask of protocol headers prefixed with ICE_FLOW_SEG_HDR_*
*
* Determine the GTPU hash context index based on the combination of
* encapsulation headers (GTPU_EH, GTPU_UP, GTPU_DWN) and transport
* protocols (UDP, TCP) within IPv4 or IPv6 flows.
*
* Return: A valid context index (0-8) if the header combination is supported,
* or ICE_HASH_GTPU_CTX_MAX if the combination is invalid.
*/
static enum ice_hash_gtpu_ctx_type ice_calc_gtpu_ctx_idx(u32 hdrs)
{
u32 eh_idx, ip_idx;
if (hdrs & ICE_FLOW_SEG_HDR_GTPU_EH)
eh_idx = 0;
else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_UP)
eh_idx = 1;
else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_DWN)
eh_idx = 2;
else
return ICE_HASH_GTPU_CTX_MAX;
ip_idx = 0;
if (hdrs & ICE_FLOW_SEG_HDR_UDP)
ip_idx = 1;
else if (hdrs & ICE_FLOW_SEG_HDR_TCP)
ip_idx = 2;
if (hdrs & (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6))
return eh_idx * 3 + ip_idx;
else
return ICE_HASH_GTPU_CTX_MAX;
}
/**
* ice_map_ip_ctx_idx - map the index of the IP L4 hash context
* @hdrs: protocol headers prefix with ICE_FLOW_SEG_HDR_XXX.
*
* The IP L4 hash context use the index to classify for IPv4/IPv6 with
* ESP/UDP_ESP/AH/PFCP and non-tunnel UDP/TCP/SCTP
* this function map the index based on the protocol headers.
*
* Return: The mapped IP context index on success, or ICE_HASH_IP_CTX_MAX
* if no matching context is found.
*/
static u8 ice_map_ip_ctx_idx(u32 hdrs)
{
u8 i;
static struct {
u32 hdrs;
u8 ctx_idx;
} ip_ctx_idx_map[] = {
{ ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_OTHER |
ICE_FLOW_SEG_HDR_ESP,
ICE_HASH_IP_CTX_IP_ESP },
{ ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_OTHER |
ICE_FLOW_SEG_HDR_NAT_T_ESP,
ICE_HASH_IP_CTX_IP_UDP_ESP },
{ ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_OTHER |
ICE_FLOW_SEG_HDR_AH,
ICE_HASH_IP_CTX_IP_AH },
{ ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_OTHER |
ICE_FLOW_SEG_HDR_PFCP_SESSION,
ICE_HASH_IP_CTX_IP_PFCP },
{ ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN |
ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_UDP,
ICE_HASH_IP_CTX_IP_UDP },
{ ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN |
ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_TCP,
ICE_HASH_IP_CTX_IP_TCP },
{ ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN |
ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_SCTP,
ICE_HASH_IP_CTX_IP_SCTP },
{ ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN |
ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_OTHER,
ICE_HASH_IP_CTX_IP },
{ ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER |
ICE_FLOW_SEG_HDR_ESP,
ICE_HASH_IP_CTX_IP_ESP },
{ ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER |
ICE_FLOW_SEG_HDR_NAT_T_ESP,
ICE_HASH_IP_CTX_IP_UDP_ESP },
{ ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER |
ICE_FLOW_SEG_HDR_AH,
ICE_HASH_IP_CTX_IP_AH },
{ ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER |
ICE_FLOW_SEG_HDR_PFCP_SESSION,
ICE_HASH_IP_CTX_IP_PFCP },
{ ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN |
ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_UDP,
ICE_HASH_IP_CTX_IP_UDP },
{ ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN |
ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_TCP,
ICE_HASH_IP_CTX_IP_TCP },
{ ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN |
ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_SCTP,
ICE_HASH_IP_CTX_IP_SCTP },
{ ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN |
ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER,
ICE_HASH_IP_CTX_IP },
/* the remaining mappings are used for default RSS */
{ ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_UDP,
ICE_HASH_IP_CTX_IP_UDP },
{ ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_TCP,
ICE_HASH_IP_CTX_IP_TCP },
{ ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_SCTP,
ICE_HASH_IP_CTX_IP_SCTP },
{ ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_OTHER,
ICE_HASH_IP_CTX_IP },
{ ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_UDP,
ICE_HASH_IP_CTX_IP_UDP },
{ ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_TCP,
ICE_HASH_IP_CTX_IP_TCP },
{ ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_SCTP,
ICE_HASH_IP_CTX_IP_SCTP },
{ ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER,
ICE_HASH_IP_CTX_IP },
};
for (i = 0; i < ARRAY_SIZE(ip_ctx_idx_map); i++) {
if (hdrs == ip_ctx_idx_map[i].hdrs)
return ip_ctx_idx_map[i].ctx_idx;
}
return ICE_HASH_IP_CTX_MAX;
}
/**
* ice_add_rss_cfg_pre - Prepare RSS configuration context for a VF
* @vf: pointer to the VF structure
* @cfg: pointer to the RSS hash configuration
*
* Prepare the RSS hash context for a given VF based on the additional
* protocol headers specified in @cfg. This includes pre-configuration
* for IP and GTPU-based flows.
*
* If the configuration matches a known IP context, the function sets up
* the appropriate IP hash context. If the configuration includes GTPU
* headers, it prepares the GTPU-specific context accordingly.
*
* Return: 0 on success, or a negative error code on failure.
*/
static int
ice_add_rss_cfg_pre(struct ice_vf *vf, struct ice_rss_hash_cfg *cfg)
{
u32 ice_gtpu_ctx_idx = ice_calc_gtpu_ctx_idx(cfg->addl_hdrs);
u8 ip_ctx_idx = ice_map_ip_ctx_idx(cfg->addl_hdrs);
if (ip_ctx_idx == ICE_HASH_IP_CTX_IP) {
int ret = 0;
if (cfg->addl_hdrs & ICE_FLOW_SEG_HDR_IPV4)
ret = ice_add_rss_cfg_pre_ip(vf, &vf->hash_ctx.v4);
else if (cfg->addl_hdrs & ICE_FLOW_SEG_HDR_IPV6)
ret = ice_add_rss_cfg_pre_ip(vf, &vf->hash_ctx.v6);
if (ret)
return ret;
}
if (cfg->addl_hdrs & ICE_FLOW_SEG_HDR_IPV4) {
return ice_add_rss_cfg_pre_gtpu(vf, &vf->hash_ctx.ipv4,
ice_gtpu_ctx_idx);
} else if (cfg->addl_hdrs & ICE_FLOW_SEG_HDR_IPV6) {
return ice_add_rss_cfg_pre_gtpu(vf, &vf->hash_ctx.ipv6,
ice_gtpu_ctx_idx);
}
return 0;
}
/**
* ice_add_rss_cfg_post_gtpu - Post-process GTPU RSS configuration
* @vf: pointer to the VF info
* @ctx: pointer to the context of the GTPU hash
* @cfg: pointer to the RSS hash configuration
* @ctx_idx: index of the hash context
*
* Post-processes the GTPU hash configuration after a new hash
* context has been successfully added. It updates the context with the new
* configuration and restores any previously removed hash contexts that need
* to be re-applied. This ensures proper TCAM rule ordering and avoids
* conflicts between overlapping GTPU rules.
*
* Return: 0 on success or a negative error code on failure
*/
static int ice_add_rss_cfg_post_gtpu(struct ice_vf *vf,
struct ice_vf_hash_gtpu_ctx *ctx,
struct ice_rss_hash_cfg *cfg, u32 ctx_idx)
{
/* GTPU hash moveback lookup table indexed by context ID.
* Each entry is a bitmap indicating which contexts need moveback
* operations when the corresponding context index is processed.
*/
static const unsigned long
ice_gtpu_moveback_tbl[ICE_HASH_GTPU_CTX_MAX] = {
[ICE_HASH_GTPU_CTX_EH_IP] = 0,
[ICE_HASH_GTPU_CTX_EH_IP_UDP] =
BIT(ICE_HASH_GTPU_CTX_UP_IP) |
BIT(ICE_HASH_GTPU_CTX_UP_IP_TCP) |
BIT(ICE_HASH_GTPU_CTX_DW_IP) |
BIT(ICE_HASH_GTPU_CTX_DW_IP_TCP),
[ICE_HASH_GTPU_CTX_EH_IP_TCP] =
BIT(ICE_HASH_GTPU_CTX_UP_IP) |
BIT(ICE_HASH_GTPU_CTX_UP_IP_UDP) |
BIT(ICE_HASH_GTPU_CTX_DW_IP) |
BIT(ICE_HASH_GTPU_CTX_DW_IP_UDP),
[ICE_HASH_GTPU_CTX_UP_IP] =
BIT(ICE_HASH_GTPU_CTX_EH_IP) |
BIT(ICE_HASH_GTPU_CTX_EH_IP_UDP) |
BIT(ICE_HASH_GTPU_CTX_EH_IP_TCP),
[ICE_HASH_GTPU_CTX_UP_IP_UDP] =
BIT(ICE_HASH_GTPU_CTX_EH_IP) |
BIT(ICE_HASH_GTPU_CTX_EH_IP_UDP) |
BIT(ICE_HASH_GTPU_CTX_EH_IP_TCP),
[ICE_HASH_GTPU_CTX_UP_IP_TCP] =
BIT(ICE_HASH_GTPU_CTX_EH_IP) |
BIT(ICE_HASH_GTPU_CTX_EH_IP_UDP) |
BIT(ICE_HASH_GTPU_CTX_EH_IP_TCP),
[ICE_HASH_GTPU_CTX_DW_IP] =
BIT(ICE_HASH_GTPU_CTX_EH_IP) |
BIT(ICE_HASH_GTPU_CTX_EH_IP_UDP) |
BIT(ICE_HASH_GTPU_CTX_EH_IP_TCP),
[ICE_HASH_GTPU_CTX_DW_IP_UDP] =
BIT(ICE_HASH_GTPU_CTX_EH_IP) |
BIT(ICE_HASH_GTPU_CTX_EH_IP_UDP) |
BIT(ICE_HASH_GTPU_CTX_EH_IP_TCP),
[ICE_HASH_GTPU_CTX_DW_IP_TCP] =
BIT(ICE_HASH_GTPU_CTX_EH_IP) |
BIT(ICE_HASH_GTPU_CTX_EH_IP_UDP) |
BIT(ICE_HASH_GTPU_CTX_EH_IP_TCP),
};
unsigned long moveback_mask;
int ret;
int i;
if (unlikely(ctx_idx >= ICE_HASH_GTPU_CTX_MAX))
return 0;
ctx->ctx[ctx_idx].addl_hdrs = cfg->addl_hdrs;
ctx->ctx[ctx_idx].hash_flds = cfg->hash_flds;
ctx->ctx[ctx_idx].hdr_type = cfg->hdr_type;
ctx->ctx[ctx_idx].symm = cfg->symm;
moveback_mask = ice_gtpu_moveback_tbl[ctx_idx];
for_each_set_bit(i, &moveback_mask, ICE_HASH_GTPU_CTX_MAX) {
ret = ice_hash_moveback(vf, &ctx->ctx[i]);
if (ret && ret != -ENOENT)
return ret;
}
return 0;
}
static int
ice_add_rss_cfg_post(struct ice_vf *vf, struct ice_rss_hash_cfg *cfg)
{
u32 ice_gtpu_ctx_idx = ice_calc_gtpu_ctx_idx(cfg->addl_hdrs);
u8 ip_ctx_idx = ice_map_ip_ctx_idx(cfg->addl_hdrs);
if (ip_ctx_idx && ip_ctx_idx < ICE_HASH_IP_CTX_MAX) {
if (cfg->addl_hdrs & ICE_FLOW_SEG_HDR_IPV4)
ice_hash_cfg_record(&vf->hash_ctx.v4.ctx[ip_ctx_idx], cfg);
else if (cfg->addl_hdrs & ICE_FLOW_SEG_HDR_IPV6)
ice_hash_cfg_record(&vf->hash_ctx.v6.ctx[ip_ctx_idx], cfg);
}
if (cfg->addl_hdrs & ICE_FLOW_SEG_HDR_IPV4) {
return ice_add_rss_cfg_post_gtpu(vf, &vf->hash_ctx.ipv4,
cfg, ice_gtpu_ctx_idx);
} else if (cfg->addl_hdrs & ICE_FLOW_SEG_HDR_IPV6) {
return ice_add_rss_cfg_post_gtpu(vf, &vf->hash_ctx.ipv6,
cfg, ice_gtpu_ctx_idx);
}
return 0;
}
/**
* ice_rem_rss_cfg_post - post-process the RSS configuration
* @vf: pointer to the VF info
* @cfg: pointer to the RSS hash configuration
*
* Post process the RSS hash configuration after deleting a hash
* config. Such as, it will reset the hash context for the GTPU hash.
*/
static void
ice_rem_rss_cfg_post(struct ice_vf *vf, struct ice_rss_hash_cfg *cfg)
{
u32 ice_gtpu_ctx_idx = ice_calc_gtpu_ctx_idx(cfg->addl_hdrs);
u8 ip_ctx_idx = ice_map_ip_ctx_idx(cfg->addl_hdrs);
if (ip_ctx_idx && ip_ctx_idx < ICE_HASH_IP_CTX_MAX) {
if (cfg->addl_hdrs & ICE_FLOW_SEG_HDR_IPV4)
ice_hash_cfg_reset(&vf->hash_ctx.v4.ctx[ip_ctx_idx]);
else if (cfg->addl_hdrs & ICE_FLOW_SEG_HDR_IPV6)
ice_hash_cfg_reset(&vf->hash_ctx.v6.ctx[ip_ctx_idx]);
}
if (ice_gtpu_ctx_idx >= ICE_HASH_GTPU_CTX_MAX)
return;
if (cfg->addl_hdrs & ICE_FLOW_SEG_HDR_IPV4)
ice_hash_cfg_reset(&vf->hash_ctx.ipv4.ctx[ice_gtpu_ctx_idx]);
else if (cfg->addl_hdrs & ICE_FLOW_SEG_HDR_IPV6)
ice_hash_cfg_reset(&vf->hash_ctx.ipv6.ctx[ice_gtpu_ctx_idx]);
}
/**
* ice_rem_rss_cfg_wrap - Wrapper for deleting an RSS configuration
* @vf: pointer to the VF info
* @cfg: pointer to the RSS hash configuration
*
* Wrapper function to delete a flow profile base on an RSS configuration,
* and also post process the hash context base on the rollback mechanism
* which handle some rules conflict by ice_add_rss_cfg_wrap.
*
* Return: 0 on success; negative error code on failure.
*/
static int
ice_rem_rss_cfg_wrap(struct ice_vf *vf, struct ice_rss_hash_cfg *cfg)
{
struct device *dev = ice_pf_to_dev(vf->pf);
struct ice_vsi *vsi = ice_get_vf_vsi(vf);
struct ice_hw *hw = &vf->pf->hw;
int ret;
ret = ice_rem_rss_cfg(hw, vsi->idx, cfg);
/* We just ignore -ENOENT, because if two configurations share the same
* profile remove one of them actually removes both, since the
* profile is deleted.
*/
if (ret && ret != -ENOENT) {
dev_err(dev, "ice_rem_rss_cfg failed for VF %d, VSI %d, error:%d\n",
vf->vf_id, vf->lan_vsi_idx, ret);
return ret;
}
ice_rem_rss_cfg_post(vf, cfg);
return 0;
}
/**
* ice_add_rss_cfg_wrap - Wrapper for adding an RSS configuration
* @vf: pointer to the VF info
* @cfg: pointer to the RSS hash configuration
*
* Add a flow profile based on an RSS configuration. Use a rollback
* mechanism to handle rule conflicts due to TCAM
* write sequence from top to down.
*
* Return: 0 on success; negative error code on failure.
*/
static int
ice_add_rss_cfg_wrap(struct ice_vf *vf, struct ice_rss_hash_cfg *cfg)
{
struct device *dev = ice_pf_to_dev(vf->pf);
struct ice_vsi *vsi = ice_get_vf_vsi(vf);
struct ice_hw *hw = &vf->pf->hw;
int ret;
if (ice_add_rss_cfg_pre(vf, cfg))
return -EINVAL;
ret = ice_add_rss_cfg(hw, vsi, cfg);
if (ret) {
dev_err(dev, "ice_add_rss_cfg failed for VF %d, VSI %d, error:%d\n",
vf->vf_id, vf->lan_vsi_idx, ret);
return ret;
}
if (ice_add_rss_cfg_post(vf, cfg))
ret = -EINVAL;
return ret;
}
/**
* ice_parse_raw_rss_pattern - Parse raw pattern spec and mask for RSS
* @vf: pointer to the VF info
* @proto: pointer to the virtchnl protocol header
* @raw_cfg: pointer to the RSS raw pattern configuration
*
* Parser function to get spec and mask from virtchnl message, and parse
* them to get the corresponding profile and offset. The profile is used
* to add RSS configuration.
*
* Return: 0 on success; negative error code on failure.
*/
static int
ice_parse_raw_rss_pattern(struct ice_vf *vf, struct virtchnl_proto_hdrs *proto,
struct ice_rss_raw_cfg *raw_cfg)
{
struct ice_parser_result pkt_parsed;
struct ice_hw *hw = &vf->pf->hw;
struct ice_parser_profile prof;
struct ice_parser *psr;
u8 *pkt_buf, *msk_buf;
u16 pkt_len;
int ret = 0;
pkt_len = proto->raw.pkt_len;
if (!pkt_len)
return -EINVAL;
if (pkt_len > VIRTCHNL_MAX_SIZE_RAW_PACKET)
pkt_len = VIRTCHNL_MAX_SIZE_RAW_PACKET;
pkt_buf = kzalloc(pkt_len, GFP_KERNEL);
msk_buf = kzalloc(pkt_len, GFP_KERNEL);
if (!pkt_buf || !msk_buf) {
ret = -ENOMEM;
goto free_alloc;
}
memcpy(pkt_buf, proto->raw.spec, pkt_len);
memcpy(msk_buf, proto->raw.mask, pkt_len);
psr = ice_parser_create(hw);
if (IS_ERR(psr)) {
ret = PTR_ERR(psr);
goto free_alloc;
}
ret = ice_parser_run(psr, pkt_buf, pkt_len, &pkt_parsed);
if (ret)
goto parser_destroy;
ret = ice_parser_profile_init(&pkt_parsed, pkt_buf, msk_buf,
pkt_len, ICE_BLK_RSS, &prof);
if (ret)
goto parser_destroy;
memcpy(&raw_cfg->prof, &prof, sizeof(prof));
parser_destroy:
ice_parser_destroy(psr);
free_alloc:
kfree(pkt_buf);
kfree(msk_buf);
return ret;
}
/**
* ice_add_raw_rss_cfg - add RSS configuration for raw pattern
* @vf: pointer to the VF info
* @cfg: pointer to the RSS raw pattern configuration
*
* This function adds the RSS configuration for raw pattern.
* Check if current profile is matched. If not, remove the old
* one and add the new profile to HW directly. Update the symmetric
* hash configuration as well.
*
* Return: 0 on success; negative error code on failure.
*/
static int
ice_add_raw_rss_cfg(struct ice_vf *vf, struct ice_rss_raw_cfg *cfg)
{
struct ice_parser_profile *prof = &cfg->prof;
struct device *dev = ice_pf_to_dev(vf->pf);
struct ice_rss_prof_info *rss_prof;
struct ice_hw *hw = &vf->pf->hw;
int i, ptg, ret = 0;
u16 vsi_handle;
u64 id;
vsi_handle = vf->lan_vsi_idx;
id = find_first_bit(prof->ptypes, ICE_FLOW_PTYPE_MAX);
ptg = hw->blk[ICE_BLK_RSS].xlt1.t[id];
rss_prof = &vf->rss_prof_info[ptg];
/* check if ptg already has a profile */
if (rss_prof->prof.fv_num) {
for (i = 0; i < ICE_MAX_FV_WORDS; i++) {
if (rss_prof->prof.fv[i].proto_id !=
prof->fv[i].proto_id ||
rss_prof->prof.fv[i].offset !=
prof->fv[i].offset)
break;
}
/* current profile is matched, check symmetric hash */
if (i == ICE_MAX_FV_WORDS) {
if (rss_prof->symm != cfg->symm)
goto update_symm;
return ret;
}
/* current profile is not matched, remove it */
ret =
ice_rem_prof_id_flow(hw, ICE_BLK_RSS,
ice_get_hw_vsi_num(hw, vsi_handle),
id);
if (ret) {
dev_err(dev, "remove RSS flow failed\n");
return ret;
}
ret = ice_rem_prof(hw, ICE_BLK_RSS, id);
if (ret) {
dev_err(dev, "remove RSS profile failed\n");
return ret;
}
}
/* add new profile */
ret = ice_flow_set_parser_prof(hw, vsi_handle, 0, prof, ICE_BLK_RSS);
if (ret) {
dev_err(dev, "HW profile add failed\n");
return ret;
}
memcpy(&rss_prof->prof, prof, sizeof(struct ice_parser_profile));
update_symm:
rss_prof->symm = cfg->symm;
ice_rss_update_raw_symm(hw, cfg, id);
return ret;
}
/**
* ice_rem_raw_rss_cfg - remove RSS configuration for raw pattern
* @vf: pointer to the VF info
* @cfg: pointer to the RSS raw pattern configuration
*
* This function removes the RSS configuration for raw pattern.
* Check if vsi group is already removed first. If not, remove the
* profile.
*
* Return: 0 on success; negative error code on failure.
*/
static int
ice_rem_raw_rss_cfg(struct ice_vf *vf, struct ice_rss_raw_cfg *cfg)
{
struct ice_parser_profile *prof = &cfg->prof;
struct device *dev = ice_pf_to_dev(vf->pf);
struct ice_hw *hw = &vf->pf->hw;
int ptg, ret = 0;
u16 vsig, vsi;
u64 id;
id = find_first_bit(prof->ptypes, ICE_FLOW_PTYPE_MAX);
ptg = hw->blk[ICE_BLK_RSS].xlt1.t[id];
memset(&vf->rss_prof_info[ptg], 0,
sizeof(struct ice_rss_prof_info));
/* check if vsig is already removed */
vsi = ice_get_hw_vsi_num(hw, vf->lan_vsi_idx);
if (vsi >= ICE_MAX_VSI) {
ret = -EINVAL;
goto err;
}
vsig = hw->blk[ICE_BLK_RSS].xlt2.vsis[vsi].vsig;
if (vsig) {
ret = ice_rem_prof_id_flow(hw, ICE_BLK_RSS, vsi, id);
if (ret)
goto err;
ret = ice_rem_prof(hw, ICE_BLK_RSS, id);
if (ret)
goto err;
}
return ret;
err:
dev_err(dev, "HW profile remove failed\n");
return ret;
}
/**
* ice_vc_handle_rss_cfg
* @vf: pointer to the VF info
* @msg: pointer to the message buffer
* @add: add a RSS config if true, otherwise delete a RSS config
*
* This function adds/deletes a RSS config
*/
int ice_vc_handle_rss_cfg(struct ice_vf *vf, u8 *msg, bool add)
{
u32 v_opcode = add ? VIRTCHNL_OP_ADD_RSS_CFG : VIRTCHNL_OP_DEL_RSS_CFG;
struct virtchnl_rss_cfg *rss_cfg = (struct virtchnl_rss_cfg *)msg;
enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
struct device *dev = ice_pf_to_dev(vf->pf);
struct ice_hw *hw = &vf->pf->hw;
struct ice_vsi *vsi;
u8 hash_type;
bool symm;
int ret;
if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
dev_dbg(dev, "VF %d attempting to configure RSS, but RSS is not supported by the PF\n",
vf->vf_id);
v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED;
goto error_param;
}
if (!ice_vf_adv_rss_offload_ena(vf->driver_caps)) {
dev_dbg(dev, "VF %d attempting to configure RSS, but Advanced RSS offload is not supported\n",
vf->vf_id);
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (rss_cfg->proto_hdrs.count > VIRTCHNL_MAX_NUM_PROTO_HDRS ||
rss_cfg->rss_algorithm < VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC ||
rss_cfg->rss_algorithm > VIRTCHNL_RSS_ALG_XOR_SYMMETRIC) {
dev_dbg(dev, "VF %d attempting to configure RSS, but RSS configuration is not valid\n",
vf->vf_id);
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
vsi = ice_get_vf_vsi(vf);
if (!vsi) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_R_ASYMMETRIC) {
hash_type = add ? ICE_AQ_VSI_Q_OPT_RSS_HASH_XOR :
ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ;
ret = ice_vc_rss_hash_update(hw, vsi, hash_type);
if (ret)
v_ret = ice_err_to_virt_err(ret);
goto error_param;
}
hash_type = add ? ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ :
ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ;
ret = ice_vc_rss_hash_update(hw, vsi, hash_type);
if (ret) {
v_ret = ice_err_to_virt_err(ret);
goto error_param;
}
symm = rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC;
/* Configure RSS hash for raw pattern */
if (rss_cfg->proto_hdrs.tunnel_level == 0 &&
rss_cfg->proto_hdrs.count == 0) {
struct ice_rss_raw_cfg raw_cfg;
if (ice_parse_raw_rss_pattern(vf, &rss_cfg->proto_hdrs,
&raw_cfg)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (add) {
raw_cfg.symm = symm;
if (ice_add_raw_rss_cfg(vf, &raw_cfg))
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
} else {
if (ice_rem_raw_rss_cfg(vf, &raw_cfg))
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
}
} else {
struct ice_rss_hash_cfg cfg;
/* Only check for none raw pattern case */
if (!ice_vc_validate_pattern(vf, &rss_cfg->proto_hdrs)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
cfg.addl_hdrs = ICE_FLOW_SEG_HDR_NONE;
cfg.hash_flds = ICE_HASH_INVALID;
cfg.hdr_type = ICE_RSS_ANY_HEADERS;
if (!ice_vc_parse_rss_cfg(hw, rss_cfg, &cfg)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (add) {
cfg.symm = symm;
if (ice_add_rss_cfg_wrap(vf, &cfg))
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
} else {
if (ice_rem_rss_cfg_wrap(vf, &cfg))
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
}
}
error_param:
return ice_vc_send_msg_to_vf(vf, v_opcode, v_ret, NULL, 0);
}
/**
* ice_vc_config_rss_key
* @vf: pointer to the VF info
* @msg: pointer to the msg buffer
*
* Configure the VF's RSS key
*/
int ice_vc_config_rss_key(struct ice_vf *vf, u8 *msg)
{
enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
struct virtchnl_rss_key *vrk =
(struct virtchnl_rss_key *)msg;
struct ice_vsi *vsi;
if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (!ice_vc_isvalid_vsi_id(vf, vrk->vsi_id)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
vsi = ice_get_vf_vsi(vf);
if (!vsi) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (ice_set_rss_key(vsi, vrk->key))
v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
error_param:
return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, v_ret,
NULL, 0);
}
/**
* ice_vc_config_rss_lut
* @vf: pointer to the VF info
* @msg: pointer to the msg buffer
*
* Configure the VF's RSS LUT
*/
int ice_vc_config_rss_lut(struct ice_vf *vf, u8 *msg)
{
struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg;
enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
struct ice_vsi *vsi;
if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (!ice_vc_isvalid_vsi_id(vf, vrl->vsi_id)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (vrl->lut_entries != ICE_LUT_VSI_SIZE) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
vsi = ice_get_vf_vsi(vf);
if (!vsi) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (ice_set_rss_lut(vsi, vrl->lut, ICE_LUT_VSI_SIZE))
v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
error_param:
return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, v_ret,
NULL, 0);
}
/**
* ice_vc_config_rss_hfunc
* @vf: pointer to the VF info
* @msg: pointer to the msg buffer
*
* Configure the VF's RSS Hash function
*/
int ice_vc_config_rss_hfunc(struct ice_vf *vf, u8 *msg)
{
struct virtchnl_rss_hfunc *vrh = (struct virtchnl_rss_hfunc *)msg;
enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
u8 hfunc = ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ;
struct ice_vsi *vsi;
if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (!ice_vc_isvalid_vsi_id(vf, vrh->vsi_id)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
vsi = ice_get_vf_vsi(vf);
if (!vsi) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
if (vrh->rss_algorithm == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC)
hfunc = ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ;
if (ice_set_rss_hfunc(vsi, hfunc))
v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
error_param:
return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_HFUNC, v_ret,
NULL, 0);
}
/**
* ice_vc_get_rss_hashcfg - return the RSS Hash configuration
* @vf: pointer to the VF info
*/
int ice_vc_get_rss_hashcfg(struct ice_vf *vf)
{
enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
struct virtchnl_rss_hashcfg *vrh = NULL;
int len = 0, ret;
if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto err;
}
if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
dev_err(ice_pf_to_dev(vf->pf), "RSS not supported by PF\n");
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto err;
}
len = sizeof(struct virtchnl_rss_hashcfg);
vrh = kzalloc(len, GFP_KERNEL);
if (!vrh) {
v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
len = 0;
goto err;
}
vrh->hashcfg = ICE_DEFAULT_RSS_HASHCFG;
err:
/* send the response back to the VF */
ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HASHCFG_CAPS, v_ret,
(u8 *)vrh, len);
kfree(vrh);
return ret;
}
/**
* ice_vc_set_rss_hashcfg - set RSS Hash configuration bits for the VF
* @vf: pointer to the VF info
* @msg: pointer to the msg buffer
*/
int ice_vc_set_rss_hashcfg(struct ice_vf *vf, u8 *msg)
{
struct virtchnl_rss_hashcfg *vrh = (struct virtchnl_rss_hashcfg *)msg;
enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
struct ice_pf *pf = vf->pf;
struct ice_vsi *vsi;
struct device *dev;
int status;
dev = ice_pf_to_dev(pf);
if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto err;
}
if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
dev_err(dev, "RSS not supported by PF\n");
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto err;
}
vsi = ice_get_vf_vsi(vf);
if (!vsi) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto err;
}
/* clear all previously programmed RSS configuration to allow VF drivers
* the ability to customize the RSS configuration and/or completely
* disable RSS
*/
status = ice_rem_vsi_rss_cfg(&pf->hw, vsi->idx);
if (status && !vrh->hashcfg) {
/* only report failure to clear the current RSS configuration if
* that was clearly the VF's intention (i.e. vrh->hashcfg = 0)
*/
v_ret = ice_err_to_virt_err(status);
goto err;
} else if (status) {
/* allow the VF to update the RSS configuration even on failure
* to clear the current RSS confguration in an attempt to keep
* RSS in a working state
*/
dev_warn(dev, "Failed to clear the RSS configuration for VF %u\n",
vf->vf_id);
}
if (vrh->hashcfg) {
status = ice_add_avf_rss_cfg(&pf->hw, vsi, vrh->hashcfg);
v_ret = ice_err_to_virt_err(status);
}
/* save the requested VF configuration */
if (!v_ret)
vf->rss_hashcfg = vrh->hashcfg;
/* send the response to the VF */
err:
return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_SET_RSS_HASHCFG, v_ret,
NULL, 0);
}