diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_flow.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_flow.c | 3015 |
1 files changed, 3015 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_flow.c b/drivers/net/ethernet/intel/ice/ice_flow.c new file mode 100644 index 000000000000..c9b6d0a84bd1 --- /dev/null +++ b/drivers/net/ethernet/intel/ice/ice_flow.c @@ -0,0 +1,3015 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2019, Intel Corporation. */ + +#include "ice_common.h" +#include "ice_flow.h" +#include <net/gre.h> + +/* Size of known protocol header fields */ +#define ICE_FLOW_FLD_SZ_ETH_TYPE 2 +#define ICE_FLOW_FLD_SZ_VLAN 2 +#define ICE_FLOW_FLD_SZ_IPV4_ADDR 4 +#define ICE_FLOW_FLD_SZ_IPV6_ADDR 16 +#define ICE_FLOW_FLD_SZ_IPV6_PRE32_ADDR 4 +#define ICE_FLOW_FLD_SZ_IPV6_PRE48_ADDR 6 +#define ICE_FLOW_FLD_SZ_IPV6_PRE64_ADDR 8 +#define ICE_FLOW_FLD_SZ_IPV4_ID 2 +#define ICE_FLOW_FLD_SZ_IPV6_ID 4 +#define ICE_FLOW_FLD_SZ_IP_CHKSUM 2 +#define ICE_FLOW_FLD_SZ_TCP_CHKSUM 2 +#define ICE_FLOW_FLD_SZ_UDP_CHKSUM 2 +#define ICE_FLOW_FLD_SZ_SCTP_CHKSUM 4 +#define ICE_FLOW_FLD_SZ_IP_DSCP 1 +#define ICE_FLOW_FLD_SZ_IP_TTL 1 +#define ICE_FLOW_FLD_SZ_IP_PROT 1 +#define ICE_FLOW_FLD_SZ_PORT 2 +#define ICE_FLOW_FLD_SZ_TCP_FLAGS 1 +#define ICE_FLOW_FLD_SZ_ICMP_TYPE 1 +#define ICE_FLOW_FLD_SZ_ICMP_CODE 1 +#define ICE_FLOW_FLD_SZ_ARP_OPER 2 +#define ICE_FLOW_FLD_SZ_GRE_KEYID 4 +#define ICE_FLOW_FLD_SZ_GTP_TEID 4 +#define ICE_FLOW_FLD_SZ_GTP_QFI 2 +#define ICE_FLOW_FLD_SZ_PFCP_SEID 8 +#define ICE_FLOW_FLD_SZ_ESP_SPI 4 +#define ICE_FLOW_FLD_SZ_AH_SPI 4 +#define ICE_FLOW_FLD_SZ_NAT_T_ESP_SPI 4 +#define ICE_FLOW_FLD_SZ_L2TPV2_SESS_ID 2 +#define ICE_FLOW_FLD_SZ_L2TPV2_LEN_SESS_ID 2 + +/* Describe properties of a protocol header field */ +struct ice_flow_field_info { + enum ice_flow_seg_hdr hdr; + s16 off; /* Offset from start of a protocol header, in bits */ + u16 size; /* Size of fields in bits */ + u16 mask; /* 16-bit mask for field */ +}; + +#define ICE_FLOW_FLD_INFO(_hdr, _offset_bytes, _size_bytes) { \ + .hdr = _hdr, \ + .off = (_offset_bytes) * BITS_PER_BYTE, \ + .size = (_size_bytes) * BITS_PER_BYTE, \ + .mask = 0, \ +} + +/* QFI: 6-bit field in GTP-U PDU Session Container (3GPP TS 38.415) */ +#define ICE_FLOW_FLD_INFO_MSK(_hdr, _offset_bytes, _size_bytes, _mask) { \ + .hdr = _hdr, \ + .off = (_offset_bytes) * BITS_PER_BYTE, \ + .size = (_size_bytes) * BITS_PER_BYTE, \ + .mask = _mask, \ +} + +/* Table containing properties of supported protocol header fields */ +static const +struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = { + /* Ether */ + /* ICE_FLOW_FIELD_IDX_ETH_DA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 0, ETH_ALEN), + /* ICE_FLOW_FIELD_IDX_ETH_SA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, ETH_ALEN, ETH_ALEN), + /* ICE_FLOW_FIELD_IDX_S_VLAN */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 12, sizeof(__be16)), + /* ICE_FLOW_FIELD_IDX_C_VLAN */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 14, sizeof(__be16)), + /* ICE_FLOW_FIELD_IDX_ETH_TYPE */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 0, sizeof(__be16)), + /* IPv4 / IPv6 */ + /* ICE_FLOW_FIELD_IDX_IPV4_DSCP */ + ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_IPV4, 0, 1, 0x00fc), + /* ICE_FLOW_FIELD_IDX_IPV6_DSCP */ + ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_IPV6, 0, 1, 0x0ff0), + /* ICE_FLOW_FIELD_IDX_IPV4_TTL */ + ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 8, 1, 0xff00), + /* ICE_FLOW_FIELD_IDX_IPV4_PROT */ + ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 8, 1, 0x00ff), + /* ICE_FLOW_FIELD_IDX_IPV6_TTL */ + ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 6, 1, 0x00ff), + /* ICE_FLOW_FIELD_IDX_IPV6_PROT */ + ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 6, 1, 0xff00), + /* ICE_FLOW_FIELD_IDX_IPV4_SA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 12, sizeof(struct in_addr)), + /* ICE_FLOW_FIELD_IDX_IPV4_DA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 16, sizeof(struct in_addr)), + /* ICE_FLOW_FIELD_IDX_IPV6_SA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, sizeof(struct in6_addr)), + /* ICE_FLOW_FIELD_IDX_IPV6_DA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, ICE_FLOW_FLD_SZ_IPV6_ADDR), + /* ICE_FLOW_FIELD_IDX_IPV4_CHKSUM */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 10, ICE_FLOW_FLD_SZ_IP_CHKSUM), + /* ICE_FLOW_FIELD_IDX_IPV4_FRAG */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV_FRAG, 4, + ICE_FLOW_FLD_SZ_IPV4_ID), + /* ICE_FLOW_FIELD_IDX_IPV6_FRAG */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV_FRAG, 4, + ICE_FLOW_FLD_SZ_IPV6_ID), + /* ICE_FLOW_FIELD_IDX_IPV6_PRE32_SA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, + ICE_FLOW_FLD_SZ_IPV6_PRE32_ADDR), + /* ICE_FLOW_FIELD_IDX_IPV6_PRE32_DA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, + ICE_FLOW_FLD_SZ_IPV6_PRE32_ADDR), + /* ICE_FLOW_FIELD_IDX_IPV6_PRE48_SA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, + ICE_FLOW_FLD_SZ_IPV6_PRE48_ADDR), + /* ICE_FLOW_FIELD_IDX_IPV6_PRE48_DA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, + ICE_FLOW_FLD_SZ_IPV6_PRE48_ADDR), + /* ICE_FLOW_FIELD_IDX_IPV6_PRE64_SA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, + ICE_FLOW_FLD_SZ_IPV6_PRE64_ADDR), + /* ICE_FLOW_FIELD_IDX_IPV6_PRE64_DA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, + ICE_FLOW_FLD_SZ_IPV6_PRE64_ADDR), + /* Transport */ + /* ICE_FLOW_FIELD_IDX_TCP_SRC_PORT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 0, sizeof(__be16)), + /* ICE_FLOW_FIELD_IDX_TCP_DST_PORT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 2, sizeof(__be16)), + /* ICE_FLOW_FIELD_IDX_UDP_SRC_PORT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 0, sizeof(__be16)), + /* ICE_FLOW_FIELD_IDX_UDP_DST_PORT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 2, sizeof(__be16)), + /* ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 0, sizeof(__be16)), + /* ICE_FLOW_FIELD_IDX_SCTP_DST_PORT */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 2, sizeof(__be16)), + /* ICE_FLOW_FIELD_IDX_TCP_FLAGS */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 13, ICE_FLOW_FLD_SZ_TCP_FLAGS), + /* ICE_FLOW_FIELD_IDX_TCP_CHKSUM */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 16, ICE_FLOW_FLD_SZ_TCP_CHKSUM), + /* ICE_FLOW_FIELD_IDX_UDP_CHKSUM */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 6, ICE_FLOW_FLD_SZ_UDP_CHKSUM), + /* ICE_FLOW_FIELD_IDX_SCTP_CHKSUM */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 8, + ICE_FLOW_FLD_SZ_SCTP_CHKSUM), + /* ARP */ + /* ICE_FLOW_FIELD_IDX_ARP_SIP */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 14, sizeof(struct in_addr)), + /* ICE_FLOW_FIELD_IDX_ARP_DIP */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 24, sizeof(struct in_addr)), + /* ICE_FLOW_FIELD_IDX_ARP_SHA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 8, ETH_ALEN), + /* ICE_FLOW_FIELD_IDX_ARP_DHA */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 18, ETH_ALEN), + /* ICE_FLOW_FIELD_IDX_ARP_OP */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 6, sizeof(__be16)), + /* ICMP */ + /* ICE_FLOW_FIELD_IDX_ICMP_TYPE */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 0, 1), + /* ICE_FLOW_FIELD_IDX_ICMP_CODE */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 1, 1), + /* GRE */ + /* ICE_FLOW_FIELD_IDX_GRE_KEYID */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GRE, 12, + sizeof_field(struct gre_full_hdr, key)), + /* GTP */ + /* ICE_FLOW_FIELD_IDX_GTPC_TEID */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPC_TEID, 12, sizeof(__be32)), + /* ICE_FLOW_FIELD_IDX_GTPU_IP_TEID */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_IP, 12, sizeof(__be32)), + /* ICE_FLOW_FIELD_IDX_GTPU_EH_TEID */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_EH, 12, sizeof(__be32)), + /* ICE_FLOW_FIELD_IDX_GTPU_EH_QFI */ + ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_GTPU_EH, 22, sizeof(__be16), + 0x3f00), + /* ICE_FLOW_FIELD_IDX_GTPU_UP_TEID */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_UP, 12, + ICE_FLOW_FLD_SZ_GTP_TEID), + /* ICE_FLOW_FIELD_IDX_GTPU_UP_QFI */ + ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_GTPU_UP, 22, + ICE_FLOW_FLD_SZ_GTP_QFI, 0x3f00), + /* ICE_FLOW_FIELD_IDX_GTPU_DWN_TEID */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_DWN, 12, + ICE_FLOW_FLD_SZ_GTP_TEID), + /* ICE_FLOW_FIELD_IDX_GTPU_DWN_QFI */ + ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_GTPU_DWN, 22, + ICE_FLOW_FLD_SZ_GTP_QFI, 0x3f00), + /* PPPoE */ + /* ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_PPPOE, 2, sizeof(__be16)), + /* PFCP */ + /* ICE_FLOW_FIELD_IDX_PFCP_SEID */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_PFCP_SESSION, 12, sizeof(__be64)), + /* L2TPv3 */ + /* ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_L2TPV3, 0, sizeof(__be32)), + /* ESP */ + /* ICE_FLOW_FIELD_IDX_ESP_SPI */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ESP, 0, sizeof(__be32)), + /* AH */ + /* ICE_FLOW_FIELD_IDX_AH_SPI */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_AH, 4, sizeof(__be32)), + /* NAT_T_ESP */ + /* ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NAT_T_ESP, 8, + ICE_FLOW_FLD_SZ_NAT_T_ESP_SPI), + /* L2TPV2 */ + /* ICE_FLOW_FIELD_IDX_L2TPV2_SESS_ID */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_L2TPV2, 12, + ICE_FLOW_FLD_SZ_L2TPV2_SESS_ID), + /* L2TPV2_LEN */ + /* ICE_FLOW_FIELD_IDX_L2TPV2_LEN_SESS_ID */ + ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_L2TPV2, 14, + ICE_FLOW_FLD_SZ_L2TPV2_LEN_SESS_ID), +}; + +/* Bitmaps indicating relevant packet types for a particular protocol header + * + * Packet types for packets with an Outer/First/Single MAC header + */ +static const u32 ice_ptypes_mac_ofos[] = { + 0xFDC00846, 0xBFBF7F7E, 0xF70001DF, 0xFEFDFDFB, + 0x0000077E, 0x000003FF, 0x00000000, 0x00000000, + 0x00400000, 0x03FFF000, 0xFFFFFFE0, 0x00000707, + 0xFFFFF000, 0x000003FF, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last MAC VLAN header */ +static const u32 ice_ptypes_macvlan_il[] = { + 0x00000000, 0xBC000000, 0x000001DF, 0xF0000000, + 0x0000077E, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outer/First/Single IPv4 header, does NOT + * include IPv4 other PTYPEs + */ +static const u32 ice_ptypes_ipv4_ofos[] = { + 0x1D800000, 0xBFBF7800, 0x000001DF, 0x00000000, + 0x00000000, 0x00000155, 0x00000000, 0x00000000, + 0x00000000, 0x000FC000, 0x000002A0, 0x00000000, + 0x00015000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outer/First/Single IPv4 header, includes + * IPv4 other PTYPEs + */ +static const u32 ice_ptypes_ipv4_ofos_all[] = { + 0x1D800000, 0x27BF7800, 0x00000000, 0x00000000, + 0x00000000, 0x00000155, 0x00000000, 0x00000000, + 0x00000000, 0x000FC000, 0x83E0FAA0, 0x00000101, + 0x3FFD5000, 0x00000000, 0x02FBEFBC, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last IPv4 header */ +static const u32 ice_ptypes_ipv4_il[] = { + 0xE0000000, 0xB807700E, 0x80000003, 0xE01DC03B, + 0x0000000E, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x001FF800, 0x00000000, + 0xC0FC0000, 0x0000000F, 0xBC0BC0BC, 0x00000BC0, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outer/First/Single IPv6 header, does NOT + * include IPv6 other PTYPEs + */ +static const u32 ice_ptypes_ipv6_ofos[] = { + 0x00000000, 0x00000000, 0x76000000, 0x10002000, + 0x00000000, 0x000002AA, 0x00000000, 0x00000000, + 0x00000000, 0x03F00000, 0x00000540, 0x00000000, + 0x0002A000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outer/First/Single IPv6 header, includes + * IPv6 other PTYPEs + */ +static const u32 ice_ptypes_ipv6_ofos_all[] = { + 0x00000000, 0x00000000, 0x76000000, 0xFEFDE000, + 0x0000077E, 0x000002AA, 0x00000000, 0x00000000, + 0x00000000, 0x03F00000, 0x7C1F0540, 0x00000206, + 0xC002A000, 0x000003FF, 0xBC000000, 0x0002FBEF, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last IPv6 header */ +static const u32 ice_ptypes_ipv6_il[] = { + 0x00000000, 0x03B80770, 0x000001DC, 0x0EE00000, + 0x00000770, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x7FE00000, 0x00000000, + 0x3F000000, 0x000003F0, 0x02F02F00, 0x0002F02F, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outer/First/Single IPv4 header - no L4 */ +static const u32 ice_ptypes_ipv4_ofos_no_l4[] = { + 0x10C00000, 0x04000800, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outermost/First ARP header */ +static const u32 ice_ptypes_arp_of[] = { + 0x00000800, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last IPv4 header - no L4 */ +static const u32 ice_ptypes_ipv4_il_no_l4[] = { + 0x60000000, 0x18043008, 0x80000002, 0x6010c021, + 0x00000008, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outer/First/Single IPv6 header - no L4 */ +static const u32 ice_ptypes_ipv6_ofos_no_l4[] = { + 0x00000000, 0x00000000, 0x43000000, 0x10002000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last IPv6 header - no L4 */ +static const u32 ice_ptypes_ipv6_il_no_l4[] = { + 0x00000000, 0x02180430, 0x0000010c, 0x086010c0, + 0x00000430, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* UDP Packet types for non-tunneled packets or tunneled + * packets with inner UDP. + */ +static const u32 ice_ptypes_udp_il[] = { + 0x81000000, 0x20204040, 0x04000010, 0x80810102, + 0x00000040, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00410000, 0x908427E0, 0x00000007, + 0x0413F000, 0x00000041, 0x10410410, 0x00004104, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last TCP header */ +static const u32 ice_ptypes_tcp_il[] = { + 0x04000000, 0x80810102, 0x10000040, 0x02040408, + 0x00000102, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00820000, 0x21084000, 0x00000000, + 0x08200000, 0x00000082, 0x20820820, 0x00008208, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last SCTP header */ +static const u32 ice_ptypes_sctp_il[] = { + 0x08000000, 0x01020204, 0x20000081, 0x04080810, + 0x00000204, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x01040000, 0x00000000, 0x00000000, + 0x10400000, 0x00000104, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outermost/First ICMP header */ +static const u32 ice_ptypes_icmp_of[] = { + 0x10000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last ICMP header */ +static const u32 ice_ptypes_icmp_il[] = { + 0x00000000, 0x02040408, 0x40000102, 0x08101020, + 0x00000408, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x42108000, 0x00000000, + 0x20800000, 0x00000208, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Outermost/First GRE header */ +static const u32 ice_ptypes_gre_of[] = { + 0x00000000, 0xBFBF7800, 0x000001DF, 0xFEFDE000, + 0x0000017E, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0xBEFBEFBC, 0x0002FBEF, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with an Innermost/Last MAC header */ +static const u32 ice_ptypes_mac_il[] = { + 0x00000000, 0x20000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for GTPC */ +static const u32 ice_ptypes_gtpc[] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x000001E0, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for GTPC with TEID */ +static const u32 ice_ptypes_gtpc_tid[] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000060, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for GTPU */ +static const struct ice_ptype_attributes ice_attr_gtpu_session[] = { + { ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_SESSION }, + { ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_SESSION }, +}; + +static const struct ice_ptype_attributes ice_attr_gtpu_eh[] = { + { ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH }, + { ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_PDU_EH }, +}; + +static const struct ice_ptype_attributes ice_attr_gtpu_down[] = { + { ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK }, + { ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_DOWNLINK }, +}; + +static const struct ice_ptype_attributes ice_attr_gtpu_up[] = { + { ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_UPLINK }, + { ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_UPLINK }, +}; + +static const u32 ice_ptypes_gtpu[] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x7FFFFE00, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for PPPoE */ +static const u32 ice_ptypes_pppoe[] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x03ffe000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with PFCP NODE header */ +static const u32 ice_ptypes_pfcp_node[] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x80000000, 0x00000002, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with PFCP SESSION header */ +static const u32 ice_ptypes_pfcp_session[] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000005, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for L2TPv3 */ +static const u32 ice_ptypes_l2tpv3[] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000300, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for ESP */ +static const u32 ice_ptypes_esp[] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000003, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for AH */ +static const u32 ice_ptypes_ah[] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x0000000C, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Packet types for packets with NAT_T ESP header */ +static const u32 ice_ptypes_nat_t_esp[] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000030, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +static const u32 ice_ptypes_mac_non_ip_ofos[] = { + 0x00000846, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00400000, 0x03FFF000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +/* Manage parameters and info. used during the creation of a flow profile */ +struct ice_flow_prof_params { + enum ice_block blk; + u16 entry_length; /* # of bytes formatted entry will require */ + u8 es_cnt; + struct ice_flow_prof *prof; + + /* For ACL, the es[0] will have the data of ICE_RX_MDID_PKT_FLAGS_15_0 + * This will give us the direction flags. + */ + struct ice_fv_word es[ICE_MAX_FV_WORDS]; + /* attributes can be used to add attributes to a particular PTYPE */ + const struct ice_ptype_attributes *attr; + u16 attr_cnt; + + u16 mask[ICE_MAX_FV_WORDS]; + DECLARE_BITMAP(ptypes, ICE_FLOW_PTYPE_MAX); +}; + +#define ICE_FLOW_RSS_HDRS_INNER_MASK \ + (ICE_FLOW_SEG_HDR_PPPOE | ICE_FLOW_SEG_HDR_GTPC | \ + ICE_FLOW_SEG_HDR_GTPC_TEID | ICE_FLOW_SEG_HDR_GTPU | \ + ICE_FLOW_SEG_HDR_PFCP_SESSION | ICE_FLOW_SEG_HDR_L2TPV3 | \ + ICE_FLOW_SEG_HDR_ESP | ICE_FLOW_SEG_HDR_AH | \ + ICE_FLOW_SEG_HDR_NAT_T_ESP) + +#define ICE_FLOW_SEG_HDRS_L3_MASK \ + (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_ARP) +#define ICE_FLOW_SEG_HDRS_L4_MASK \ + (ICE_FLOW_SEG_HDR_ICMP | ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | \ + ICE_FLOW_SEG_HDR_SCTP) +/* mask for L4 protocols that are NOT part of IPv4/6 OTHER PTYPE groups */ +#define ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER \ + (ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_SCTP) + +/** + * ice_flow_val_hdrs - validates packet segments for valid protocol headers + * @segs: array of one or more packet segments that describe the flow + * @segs_cnt: number of packet segments provided + */ +static int ice_flow_val_hdrs(struct ice_flow_seg_info *segs, u8 segs_cnt) +{ + u8 i; + + for (i = 0; i < segs_cnt; i++) { + /* Multiple L3 headers */ + if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK && + !is_power_of_2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK)) + return -EINVAL; + + /* Multiple L4 headers */ + if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK && + !is_power_of_2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK)) + return -EINVAL; + } + + return 0; +} + +/* Sizes of fixed known protocol headers without header options */ +#define ICE_FLOW_PROT_HDR_SZ_MAC 14 +#define ICE_FLOW_PROT_HDR_SZ_MAC_VLAN (ICE_FLOW_PROT_HDR_SZ_MAC + 2) +#define ICE_FLOW_PROT_HDR_SZ_IPV4 20 +#define ICE_FLOW_PROT_HDR_SZ_IPV6 40 +#define ICE_FLOW_PROT_HDR_SZ_ARP 28 +#define ICE_FLOW_PROT_HDR_SZ_ICMP 8 +#define ICE_FLOW_PROT_HDR_SZ_TCP 20 +#define ICE_FLOW_PROT_HDR_SZ_UDP 8 +#define ICE_FLOW_PROT_HDR_SZ_SCTP 12 + +/** + * ice_flow_calc_seg_sz - calculates size of a packet segment based on headers + * @params: information about the flow to be processed + * @seg: index of packet segment whose header size is to be determined + */ +static u16 ice_flow_calc_seg_sz(struct ice_flow_prof_params *params, u8 seg) +{ + u16 sz; + + /* L2 headers */ + sz = (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_VLAN) ? + ICE_FLOW_PROT_HDR_SZ_MAC_VLAN : ICE_FLOW_PROT_HDR_SZ_MAC; + + /* L3 headers */ + if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4) + sz += ICE_FLOW_PROT_HDR_SZ_IPV4; + else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV6) + sz += ICE_FLOW_PROT_HDR_SZ_IPV6; + else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_ARP) + sz += ICE_FLOW_PROT_HDR_SZ_ARP; + else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK) + /* An L3 header is required if L4 is specified */ + return 0; + + /* L4 headers */ + if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_ICMP) + sz += ICE_FLOW_PROT_HDR_SZ_ICMP; + else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_TCP) + sz += ICE_FLOW_PROT_HDR_SZ_TCP; + else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_UDP) + sz += ICE_FLOW_PROT_HDR_SZ_UDP; + else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_SCTP) + sz += ICE_FLOW_PROT_HDR_SZ_SCTP; + + return sz; +} + +/** + * ice_flow_proc_seg_hdrs - process protocol headers present in pkt segments + * @params: information about the flow to be processed + * + * This function identifies the packet types associated with the protocol + * headers being present in packet segments of the specified flow profile. + */ +static int ice_flow_proc_seg_hdrs(struct ice_flow_prof_params *params) +{ + struct ice_flow_prof *prof; + u8 i; + + memset(params->ptypes, 0xff, sizeof(params->ptypes)); + + prof = params->prof; + + for (i = 0; i < params->prof->segs_cnt; i++) { + const unsigned long *src; + u32 hdrs; + + hdrs = prof->segs[i].hdrs; + + if (hdrs & ICE_FLOW_SEG_HDR_ETH) { + src = !i ? (const unsigned long *)ice_ptypes_mac_ofos : + (const unsigned long *)ice_ptypes_mac_il; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } + + if (i && hdrs & ICE_FLOW_SEG_HDR_VLAN) { + src = (const unsigned long *)ice_ptypes_macvlan_il; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } + + if (!i && hdrs & ICE_FLOW_SEG_HDR_ARP) { + bitmap_and(params->ptypes, params->ptypes, + (const unsigned long *)ice_ptypes_arp_of, + ICE_FLOW_PTYPE_MAX); + } + + if ((hdrs & ICE_FLOW_SEG_HDR_IPV4) && + (hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)) { + src = i ? (const unsigned long *)ice_ptypes_ipv4_il : + (const unsigned long *)ice_ptypes_ipv4_ofos_all; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if ((hdrs & ICE_FLOW_SEG_HDR_IPV6) && + (hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)) { + src = i ? (const unsigned long *)ice_ptypes_ipv6_il : + (const unsigned long *)ice_ptypes_ipv6_ofos_all; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if ((hdrs & ICE_FLOW_SEG_HDR_IPV4) && + !(hdrs & ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER)) { + src = !i ? (const unsigned long *)ice_ptypes_ipv4_ofos_no_l4 : + (const unsigned long *)ice_ptypes_ipv4_il_no_l4; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_IPV4) { + src = !i ? (const unsigned long *)ice_ptypes_ipv4_ofos : + (const unsigned long *)ice_ptypes_ipv4_il; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if ((hdrs & ICE_FLOW_SEG_HDR_IPV6) && + !(hdrs & ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER)) { + src = !i ? (const unsigned long *)ice_ptypes_ipv6_ofos_no_l4 : + (const unsigned long *)ice_ptypes_ipv6_il_no_l4; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_IPV6) { + src = !i ? (const unsigned long *)ice_ptypes_ipv6_ofos : + (const unsigned long *)ice_ptypes_ipv6_il; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } + + if (hdrs & ICE_FLOW_SEG_HDR_ETH_NON_IP) { + src = (const unsigned long *)ice_ptypes_mac_non_ip_ofos; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_PPPOE) { + src = (const unsigned long *)ice_ptypes_pppoe; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else { + src = (const unsigned long *)ice_ptypes_pppoe; + bitmap_andnot(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } + + if (hdrs & ICE_FLOW_SEG_HDR_UDP) { + src = (const unsigned long *)ice_ptypes_udp_il; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_TCP) { + bitmap_and(params->ptypes, params->ptypes, + (const unsigned long *)ice_ptypes_tcp_il, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_SCTP) { + src = (const unsigned long *)ice_ptypes_sctp_il; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } + + if (hdrs & ICE_FLOW_SEG_HDR_ICMP) { + src = !i ? (const unsigned long *)ice_ptypes_icmp_of : + (const unsigned long *)ice_ptypes_icmp_il; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_GRE) { + if (!i) { + src = (const unsigned long *)ice_ptypes_gre_of; + bitmap_and(params->ptypes, params->ptypes, + src, ICE_FLOW_PTYPE_MAX); + } + } else if (hdrs & ICE_FLOW_SEG_HDR_GTPC) { + src = (const unsigned long *)ice_ptypes_gtpc; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_GTPC_TEID) { + src = (const unsigned long *)ice_ptypes_gtpc_tid; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_DWN) { + src = (const unsigned long *)ice_ptypes_gtpu; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + + /* Attributes for GTP packet with downlink */ + params->attr = ice_attr_gtpu_down; + params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_down); + } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_UP) { + src = (const unsigned long *)ice_ptypes_gtpu; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + + /* Attributes for GTP packet with uplink */ + params->attr = ice_attr_gtpu_up; + params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_up); + } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_EH) { + src = (const unsigned long *)ice_ptypes_gtpu; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + + /* Attributes for GTP packet with Extension Header */ + params->attr = ice_attr_gtpu_eh; + params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_eh); + } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_IP) { + src = (const unsigned long *)ice_ptypes_gtpu; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_L2TPV3) { + src = (const unsigned long *)ice_ptypes_l2tpv3; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_ESP) { + src = (const unsigned long *)ice_ptypes_esp; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_AH) { + src = (const unsigned long *)ice_ptypes_ah; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else if (hdrs & ICE_FLOW_SEG_HDR_NAT_T_ESP) { + src = (const unsigned long *)ice_ptypes_nat_t_esp; + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } + + if (hdrs & ICE_FLOW_SEG_HDR_PFCP) { + if (hdrs & ICE_FLOW_SEG_HDR_PFCP_NODE) + src = (const unsigned long *)ice_ptypes_pfcp_node; + else + src = (const unsigned long *)ice_ptypes_pfcp_session; + + bitmap_and(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } else { + src = (const unsigned long *)ice_ptypes_pfcp_node; + bitmap_andnot(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + + src = (const unsigned long *)ice_ptypes_pfcp_session; + bitmap_andnot(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + } + } + + return 0; +} + +/** + * ice_flow_xtract_fld - Create an extraction sequence entry for the given field + * @hw: pointer to the HW struct + * @params: information about the flow to be processed + * @seg: packet segment index of the field to be extracted + * @fld: ID of field to be extracted + * @match: bit field of all fields + * + * This function determines the protocol ID, offset, and size of the given + * field. It then allocates one or more extraction sequence entries for the + * given field, and fill the entries with protocol ID and offset information. + */ +static int +ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params, + u8 seg, enum ice_flow_field fld, u64 match) +{ + enum ice_flow_field sib = ICE_FLOW_FIELD_IDX_MAX; + enum ice_prot_id prot_id = ICE_PROT_ID_INVAL; + u8 fv_words = hw->blk[params->blk].es.fvw; + struct ice_flow_fld_info *flds; + u16 cnt, ese_bits, i; + u16 sib_mask = 0; + u16 mask; + u16 off; + + flds = params->prof->segs[seg].fields; + + switch (fld) { + case ICE_FLOW_FIELD_IDX_ETH_DA: + case ICE_FLOW_FIELD_IDX_ETH_SA: + case ICE_FLOW_FIELD_IDX_S_VLAN: + case ICE_FLOW_FIELD_IDX_C_VLAN: + prot_id = seg == 0 ? ICE_PROT_MAC_OF_OR_S : ICE_PROT_MAC_IL; + break; + case ICE_FLOW_FIELD_IDX_ETH_TYPE: + prot_id = seg == 0 ? ICE_PROT_ETYPE_OL : ICE_PROT_ETYPE_IL; + break; + case ICE_FLOW_FIELD_IDX_IPV4_DSCP: + prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL; + break; + case ICE_FLOW_FIELD_IDX_IPV6_DSCP: + prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL; + break; + case ICE_FLOW_FIELD_IDX_IPV4_TTL: + case ICE_FLOW_FIELD_IDX_IPV4_PROT: + prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL; + + /* TTL and PROT share the same extraction seq. entry. + * Each is considered a sibling to the other in terms of sharing + * the same extraction sequence entry. + */ + if (fld == ICE_FLOW_FIELD_IDX_IPV4_TTL) + sib = ICE_FLOW_FIELD_IDX_IPV4_PROT; + else if (fld == ICE_FLOW_FIELD_IDX_IPV4_PROT) + sib = ICE_FLOW_FIELD_IDX_IPV4_TTL; + + /* If the sibling field is also included, that field's + * mask needs to be included. + */ + if (match & BIT(sib)) + sib_mask = ice_flds_info[sib].mask; + break; + case ICE_FLOW_FIELD_IDX_IPV6_TTL: + case ICE_FLOW_FIELD_IDX_IPV6_PROT: + prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL; + + /* TTL and PROT share the same extraction seq. entry. + * Each is considered a sibling to the other in terms of sharing + * the same extraction sequence entry. + */ + if (fld == ICE_FLOW_FIELD_IDX_IPV6_TTL) + sib = ICE_FLOW_FIELD_IDX_IPV6_PROT; + else if (fld == ICE_FLOW_FIELD_IDX_IPV6_PROT) + sib = ICE_FLOW_FIELD_IDX_IPV6_TTL; + + /* If the sibling field is also included, that field's + * mask needs to be included. + */ + if (match & BIT(sib)) + sib_mask = ice_flds_info[sib].mask; + break; + case ICE_FLOW_FIELD_IDX_IPV4_SA: + case ICE_FLOW_FIELD_IDX_IPV4_DA: + prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL; + break; + case ICE_FLOW_FIELD_IDX_IPV6_SA: + case ICE_FLOW_FIELD_IDX_IPV6_DA: + prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL; + break; + case ICE_FLOW_FIELD_IDX_TCP_SRC_PORT: + case ICE_FLOW_FIELD_IDX_TCP_DST_PORT: + case ICE_FLOW_FIELD_IDX_TCP_FLAGS: + prot_id = ICE_PROT_TCP_IL; + break; + case ICE_FLOW_FIELD_IDX_UDP_SRC_PORT: + case ICE_FLOW_FIELD_IDX_UDP_DST_PORT: + prot_id = ICE_PROT_UDP_IL_OR_S; + break; + case ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT: + case ICE_FLOW_FIELD_IDX_SCTP_DST_PORT: + prot_id = ICE_PROT_SCTP_IL; + break; + case ICE_FLOW_FIELD_IDX_GTPC_TEID: + case ICE_FLOW_FIELD_IDX_GTPU_IP_TEID: + case ICE_FLOW_FIELD_IDX_GTPU_UP_TEID: + case ICE_FLOW_FIELD_IDX_GTPU_DWN_TEID: + case ICE_FLOW_FIELD_IDX_GTPU_EH_TEID: + case ICE_FLOW_FIELD_IDX_GTPU_EH_QFI: + /* GTP is accessed through UDP OF protocol */ + prot_id = ICE_PROT_UDP_OF; + break; + case ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID: + prot_id = ICE_PROT_PPPOE; + break; + case ICE_FLOW_FIELD_IDX_PFCP_SEID: + prot_id = ICE_PROT_UDP_IL_OR_S; + break; + case ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID: + prot_id = ICE_PROT_L2TPV3; + break; + case ICE_FLOW_FIELD_IDX_ESP_SPI: + prot_id = ICE_PROT_ESP_F; + break; + case ICE_FLOW_FIELD_IDX_AH_SPI: + prot_id = ICE_PROT_ESP_2; + break; + case ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI: + prot_id = ICE_PROT_UDP_IL_OR_S; + break; + case ICE_FLOW_FIELD_IDX_ARP_SIP: + case ICE_FLOW_FIELD_IDX_ARP_DIP: + case ICE_FLOW_FIELD_IDX_ARP_SHA: + case ICE_FLOW_FIELD_IDX_ARP_DHA: + case ICE_FLOW_FIELD_IDX_ARP_OP: + prot_id = ICE_PROT_ARP_OF; + break; + case ICE_FLOW_FIELD_IDX_ICMP_TYPE: + case ICE_FLOW_FIELD_IDX_ICMP_CODE: + /* ICMP type and code share the same extraction seq. entry */ + prot_id = (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4) ? + ICE_PROT_ICMP_IL : ICE_PROT_ICMPV6_IL; + sib = fld == ICE_FLOW_FIELD_IDX_ICMP_TYPE ? + ICE_FLOW_FIELD_IDX_ICMP_CODE : + ICE_FLOW_FIELD_IDX_ICMP_TYPE; + break; + case ICE_FLOW_FIELD_IDX_GRE_KEYID: + prot_id = ICE_PROT_GRE_OF; + break; + default: + return -EOPNOTSUPP; + } + + /* Each extraction sequence entry is a word in size, and extracts a + * word-aligned offset from a protocol header. + */ + ese_bits = ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE; + + flds[fld].xtrct.prot_id = prot_id; + flds[fld].xtrct.off = (ice_flds_info[fld].off / ese_bits) * + ICE_FLOW_FV_EXTRACT_SZ; + flds[fld].xtrct.disp = (u8)(ice_flds_info[fld].off % ese_bits); + flds[fld].xtrct.idx = params->es_cnt; + flds[fld].xtrct.mask = ice_flds_info[fld].mask; + + /* Adjust the next field-entry index after accommodating the number of + * entries this field consumes + */ + cnt = DIV_ROUND_UP(flds[fld].xtrct.disp + ice_flds_info[fld].size, + ese_bits); + + /* Fill in the extraction sequence entries needed for this field */ + off = flds[fld].xtrct.off; + mask = flds[fld].xtrct.mask; + for (i = 0; i < cnt; i++) { + /* Only consume an extraction sequence entry if there is no + * sibling field associated with this field or the sibling entry + * already extracts the word shared with this field. + */ + if (sib == ICE_FLOW_FIELD_IDX_MAX || + flds[sib].xtrct.prot_id == ICE_PROT_ID_INVAL || + flds[sib].xtrct.off != off) { + u8 idx; + + /* Make sure the number of extraction sequence required + * does not exceed the block's capability + */ + if (params->es_cnt >= fv_words) + return -ENOSPC; + + /* some blocks require a reversed field vector layout */ + if (hw->blk[params->blk].es.reverse) + idx = fv_words - params->es_cnt - 1; + else + idx = params->es_cnt; + + params->es[idx].prot_id = prot_id; + params->es[idx].off = off; + params->mask[idx] = mask | sib_mask; + params->es_cnt++; + } + + off += ICE_FLOW_FV_EXTRACT_SZ; + } + + return 0; +} + +/** + * ice_flow_xtract_raws - Create extract sequence entries for raw bytes + * @hw: pointer to the HW struct + * @params: information about the flow to be processed + * @seg: index of packet segment whose raw fields are to be extracted + */ +static int +ice_flow_xtract_raws(struct ice_hw *hw, struct ice_flow_prof_params *params, + u8 seg) +{ + u16 fv_words; + u16 hdrs_sz; + u8 i; + + if (!params->prof->segs[seg].raws_cnt) + return 0; + + if (params->prof->segs[seg].raws_cnt > + ARRAY_SIZE(params->prof->segs[seg].raws)) + return -ENOSPC; + + /* Offsets within the segment headers are not supported */ + hdrs_sz = ice_flow_calc_seg_sz(params, seg); + if (!hdrs_sz) + return -EINVAL; + + fv_words = hw->blk[params->blk].es.fvw; + + for (i = 0; i < params->prof->segs[seg].raws_cnt; i++) { + struct ice_flow_seg_fld_raw *raw; + u16 off, cnt, j; + + raw = ¶ms->prof->segs[seg].raws[i]; + + /* Storing extraction information */ + raw->info.xtrct.prot_id = ICE_PROT_MAC_OF_OR_S; + raw->info.xtrct.off = (raw->off / ICE_FLOW_FV_EXTRACT_SZ) * + ICE_FLOW_FV_EXTRACT_SZ; + raw->info.xtrct.disp = (raw->off % ICE_FLOW_FV_EXTRACT_SZ) * + BITS_PER_BYTE; + raw->info.xtrct.idx = params->es_cnt; + + /* Determine the number of field vector entries this raw field + * consumes. + */ + cnt = DIV_ROUND_UP(raw->info.xtrct.disp + + (raw->info.src.last * BITS_PER_BYTE), + (ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE)); + off = raw->info.xtrct.off; + for (j = 0; j < cnt; j++) { + u16 idx; + + /* Make sure the number of extraction sequence required + * does not exceed the block's capability + */ + if (params->es_cnt >= hw->blk[params->blk].es.count || + params->es_cnt >= ICE_MAX_FV_WORDS) + return -ENOSPC; + + /* some blocks require a reversed field vector layout */ + if (hw->blk[params->blk].es.reverse) + idx = fv_words - params->es_cnt - 1; + else + idx = params->es_cnt; + + params->es[idx].prot_id = raw->info.xtrct.prot_id; + params->es[idx].off = off; + params->es_cnt++; + off += ICE_FLOW_FV_EXTRACT_SZ; + } + } + + return 0; +} + +/** + * ice_flow_create_xtrct_seq - Create an extraction sequence for given segments + * @hw: pointer to the HW struct + * @params: information about the flow to be processed + * + * This function iterates through all matched fields in the given segments, and + * creates an extraction sequence for the fields. + */ +static int +ice_flow_create_xtrct_seq(struct ice_hw *hw, + struct ice_flow_prof_params *params) +{ + struct ice_flow_prof *prof = params->prof; + int status = 0; + u8 i; + + for (i = 0; i < prof->segs_cnt; i++) { + u64 match = params->prof->segs[i].match; + enum ice_flow_field j; + + for_each_set_bit(j, (unsigned long *)&match, + ICE_FLOW_FIELD_IDX_MAX) { + status = ice_flow_xtract_fld(hw, params, i, j, match); + if (status) + return status; + clear_bit(j, (unsigned long *)&match); + } + + /* Process raw matching bytes */ + status = ice_flow_xtract_raws(hw, params, i); + if (status) + return status; + } + + return status; +} + +/** + * ice_flow_proc_segs - process all packet segments associated with a profile + * @hw: pointer to the HW struct + * @params: information about the flow to be processed + */ +static int +ice_flow_proc_segs(struct ice_hw *hw, struct ice_flow_prof_params *params) +{ + int status; + + status = ice_flow_proc_seg_hdrs(params); + if (status) + return status; + + status = ice_flow_create_xtrct_seq(hw, params); + if (status) + return status; + + switch (params->blk) { + case ICE_BLK_FD: + case ICE_BLK_RSS: + status = 0; + break; + default: + return -EOPNOTSUPP; + } + + return status; +} + +#define ICE_FLOW_FIND_PROF_CHK_FLDS 0x00000001 +#define ICE_FLOW_FIND_PROF_CHK_VSI 0x00000002 +#define ICE_FLOW_FIND_PROF_NOT_CHK_DIR 0x00000004 +#define ICE_FLOW_FIND_PROF_CHK_SYMM 0x00000008 + +/** + * ice_flow_find_prof_conds - Find a profile matching headers and conditions + * @hw: pointer to the HW struct + * @blk: classification stage + * @dir: flow direction + * @segs: array of one or more packet segments that describe the flow + * @segs_cnt: number of packet segments provided + * @symm: symmetric setting for RSS profiles + * @vsi_handle: software VSI handle to check VSI (ICE_FLOW_FIND_PROF_CHK_VSI) + * @conds: additional conditions to be checked (ICE_FLOW_FIND_PROF_CHK_*) + */ +static struct ice_flow_prof * +ice_flow_find_prof_conds(struct ice_hw *hw, enum ice_block blk, + enum ice_flow_dir dir, struct ice_flow_seg_info *segs, + u8 segs_cnt, bool symm, u16 vsi_handle, u32 conds) +{ + struct ice_flow_prof *p, *prof = NULL; + + mutex_lock(&hw->fl_profs_locks[blk]); + list_for_each_entry(p, &hw->fl_profs[blk], l_entry) + if ((p->dir == dir || conds & ICE_FLOW_FIND_PROF_NOT_CHK_DIR) && + segs_cnt && segs_cnt == p->segs_cnt) { + u8 i; + + /* Check for profile-VSI association if specified */ + if ((conds & ICE_FLOW_FIND_PROF_CHK_VSI) && + ice_is_vsi_valid(hw, vsi_handle) && + !test_bit(vsi_handle, p->vsis)) + continue; + + /* Check for symmetric settings */ + if ((conds & ICE_FLOW_FIND_PROF_CHK_SYMM) && + p->symm != symm) + continue; + + /* Protocol headers must be checked. Matched fields are + * checked if specified. + */ + for (i = 0; i < segs_cnt; i++) + if (segs[i].hdrs != p->segs[i].hdrs || + ((conds & ICE_FLOW_FIND_PROF_CHK_FLDS) && + segs[i].match != p->segs[i].match)) + break; + + /* A match is found if all segments are matched */ + if (i == segs_cnt) { + prof = p; + break; + } + } + mutex_unlock(&hw->fl_profs_locks[blk]); + + return prof; +} + +/** + * ice_flow_find_prof_id - Look up a profile with given profile ID + * @hw: pointer to the HW struct + * @blk: classification stage + * @prof_id: unique ID to identify this flow profile + */ +static struct ice_flow_prof * +ice_flow_find_prof_id(struct ice_hw *hw, enum ice_block blk, u64 prof_id) +{ + struct ice_flow_prof *p; + + list_for_each_entry(p, &hw->fl_profs[blk], l_entry) + if (p->id == prof_id) + return p; + + return NULL; +} + +/** + * ice_flow_rem_entry_sync - Remove a flow entry + * @hw: pointer to the HW struct + * @blk: classification stage + * @entry: flow entry to be removed + */ +static int +ice_flow_rem_entry_sync(struct ice_hw *hw, enum ice_block __always_unused blk, + struct ice_flow_entry *entry) +{ + if (!entry) + return -EINVAL; + + list_del(&entry->l_entry); + + devm_kfree(ice_hw_to_dev(hw), entry); + + return 0; +} + +/** + * ice_flow_add_prof_sync - Add a flow profile for packet segments and fields + * @hw: pointer to the HW struct + * @blk: classification stage + * @dir: flow direction + * @segs: array of one or more packet segments that describe the flow + * @segs_cnt: number of packet segments provided + * @symm: symmetric setting for RSS profiles + * @prof: stores the returned flow profile added + * + * Assumption: the caller has acquired the lock to the profile list + */ +static int +ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk, + enum ice_flow_dir dir, + struct ice_flow_seg_info *segs, u8 segs_cnt, + bool symm, struct ice_flow_prof **prof) +{ + struct ice_flow_prof_params *params; + struct ice_prof_id *ids; + int status; + u64 prof_id; + u8 i; + + if (!prof) + return -EINVAL; + + ids = &hw->blk[blk].prof_id; + prof_id = find_first_zero_bit(ids->id, ids->count); + if (prof_id >= ids->count) + return -ENOSPC; + + params = kzalloc(sizeof(*params), GFP_KERNEL); + if (!params) + return -ENOMEM; + + params->prof = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*params->prof), + GFP_KERNEL); + if (!params->prof) { + status = -ENOMEM; + goto free_params; + } + + /* initialize extraction sequence to all invalid (0xff) */ + for (i = 0; i < ICE_MAX_FV_WORDS; i++) { + params->es[i].prot_id = ICE_PROT_INVALID; + params->es[i].off = ICE_FV_OFFSET_INVAL; + } + + params->blk = blk; + params->prof->id = prof_id; + params->prof->dir = dir; + params->prof->segs_cnt = segs_cnt; + params->prof->symm = symm; + + /* Make a copy of the segments that need to be persistent in the flow + * profile instance + */ + for (i = 0; i < segs_cnt; i++) + memcpy(¶ms->prof->segs[i], &segs[i], sizeof(*segs)); + + status = ice_flow_proc_segs(hw, params); + if (status) { + ice_debug(hw, ICE_DBG_FLOW, "Error processing a flow's packet segments\n"); + goto out; + } + + /* Add a HW profile for this flow profile */ + status = ice_add_prof(hw, blk, prof_id, params->ptypes, + params->attr, params->attr_cnt, params->es, + params->mask, symm, true); + if (status) { + ice_debug(hw, ICE_DBG_FLOW, "Error adding a HW flow profile\n"); + goto out; + } + + INIT_LIST_HEAD(¶ms->prof->entries); + mutex_init(¶ms->prof->entries_lock); + set_bit(prof_id, ids->id); + *prof = params->prof; + +out: + if (status) + devm_kfree(ice_hw_to_dev(hw), params->prof); +free_params: + kfree(params); + + return status; +} + +/** + * ice_flow_rem_prof_sync - remove a flow profile + * @hw: pointer to the hardware structure + * @blk: classification stage + * @prof: pointer to flow profile to remove + * + * Assumption: the caller has acquired the lock to the profile list + */ +static int +ice_flow_rem_prof_sync(struct ice_hw *hw, enum ice_block blk, + struct ice_flow_prof *prof) +{ + int status; + + /* Remove all remaining flow entries before removing the flow profile */ + if (!list_empty(&prof->entries)) { + struct ice_flow_entry *e, *t; + + mutex_lock(&prof->entries_lock); + + list_for_each_entry_safe(e, t, &prof->entries, l_entry) { + status = ice_flow_rem_entry_sync(hw, blk, e); + if (status) + break; + } + + mutex_unlock(&prof->entries_lock); + } + + /* Remove all hardware profiles associated with this flow profile */ + status = ice_rem_prof(hw, blk, prof->id); + if (!status) { + clear_bit(prof->id, hw->blk[blk].prof_id.id); + list_del(&prof->l_entry); + mutex_destroy(&prof->entries_lock); + devm_kfree(ice_hw_to_dev(hw), prof); + } + + return status; +} + +/** + * ice_flow_assoc_prof - associate a VSI with a flow profile + * @hw: pointer to the hardware structure + * @blk: classification stage + * @prof: pointer to flow profile + * @vsi_handle: software VSI handle + * + * Assumption: the caller has acquired the lock to the profile list + * and the software VSI handle has been validated + */ +static int +ice_flow_assoc_prof(struct ice_hw *hw, enum ice_block blk, + struct ice_flow_prof *prof, u16 vsi_handle) +{ + int status = 0; + + if (!test_bit(vsi_handle, prof->vsis)) { + status = ice_add_prof_id_flow(hw, blk, + ice_get_hw_vsi_num(hw, + vsi_handle), + prof->id); + if (!status) + set_bit(vsi_handle, prof->vsis); + else + ice_debug(hw, ICE_DBG_FLOW, "HW profile add failed, %d\n", + status); + } + + return status; +} + +/** + * ice_flow_disassoc_prof - disassociate a VSI from a flow profile + * @hw: pointer to the hardware structure + * @blk: classification stage + * @prof: pointer to flow profile + * @vsi_handle: software VSI handle + * + * Assumption: the caller has acquired the lock to the profile list + * and the software VSI handle has been validated + */ +static int +ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk, + struct ice_flow_prof *prof, u16 vsi_handle) +{ + int status = 0; + + if (test_bit(vsi_handle, prof->vsis)) { + status = ice_rem_prof_id_flow(hw, blk, + ice_get_hw_vsi_num(hw, + vsi_handle), + prof->id); + if (!status) + clear_bit(vsi_handle, prof->vsis); + else + ice_debug(hw, ICE_DBG_FLOW, "HW profile remove failed, %d\n", + status); + } + + return status; +} + +#define FLAG_GTP_EH_PDU_LINK BIT_ULL(13) +#define FLAG_GTP_EH_PDU BIT_ULL(14) + +#define HI_BYTE_IN_WORD GENMASK(15, 8) +#define LO_BYTE_IN_WORD GENMASK(7, 0) + +#define FLAG_GTPU_MSK \ + (FLAG_GTP_EH_PDU | FLAG_GTP_EH_PDU_LINK) +#define FLAG_GTPU_UP \ + (FLAG_GTP_EH_PDU | FLAG_GTP_EH_PDU_LINK) +#define FLAG_GTPU_DW FLAG_GTP_EH_PDU + +/** + * ice_flow_set_parser_prof - Set flow profile based on the parsed profile info + * @hw: pointer to the HW struct + * @dest_vsi: dest VSI + * @fdir_vsi: fdir programming VSI + * @prof: stores parsed profile info from raw flow + * @blk: classification blk + * + * Return: 0 on success or negative errno on failure. + */ +int +ice_flow_set_parser_prof(struct ice_hw *hw, u16 dest_vsi, u16 fdir_vsi, + struct ice_parser_profile *prof, enum ice_block blk) +{ + u64 id = find_first_bit(prof->ptypes, ICE_FLOW_PTYPE_MAX); + struct ice_flow_prof_params *params __free(kfree); + u8 fv_words = hw->blk[blk].es.fvw; + int status; + int i, idx; + + params = kzalloc(sizeof(*params), GFP_KERNEL); + if (!params) + return -ENOMEM; + + for (i = 0; i < ICE_MAX_FV_WORDS; i++) { + params->es[i].prot_id = ICE_PROT_INVALID; + params->es[i].off = ICE_FV_OFFSET_INVAL; + } + + for (i = 0; i < prof->fv_num; i++) { + if (hw->blk[blk].es.reverse) + idx = fv_words - i - 1; + else + idx = i; + params->es[idx].prot_id = prof->fv[i].proto_id; + params->es[idx].off = prof->fv[i].offset; + params->mask[idx] = (((prof->fv[i].msk) << BITS_PER_BYTE) & + HI_BYTE_IN_WORD) | + (((prof->fv[i].msk) >> BITS_PER_BYTE) & + LO_BYTE_IN_WORD); + } + + switch (prof->flags) { + case FLAG_GTPU_DW: + params->attr = ice_attr_gtpu_down; + params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_down); + break; + case FLAG_GTPU_UP: + params->attr = ice_attr_gtpu_up; + params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_up); + break; + default: + if (prof->flags_msk & FLAG_GTPU_MSK) { + params->attr = ice_attr_gtpu_session; + params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_session); + } + break; + } + + status = ice_add_prof(hw, blk, id, prof->ptypes, + params->attr, params->attr_cnt, + params->es, params->mask, false, false); + if (status) + return status; + + status = ice_flow_assoc_fdir_prof(hw, blk, dest_vsi, fdir_vsi, id); + if (status) + ice_rem_prof(hw, blk, id); + + return status; +} + +/** + * ice_flow_add_prof - Add a flow profile for packet segments and matched fields + * @hw: pointer to the HW struct + * @blk: classification stage + * @dir: flow direction + * @segs: array of one or more packet segments that describe the flow + * @segs_cnt: number of packet segments provided + * @symm: symmetric setting for RSS profiles + * @prof: stores the returned flow profile added + */ +int +ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, + struct ice_flow_seg_info *segs, u8 segs_cnt, + bool symm, struct ice_flow_prof **prof) +{ + int status; + + if (segs_cnt > ICE_FLOW_SEG_MAX) + return -ENOSPC; + + if (!segs_cnt) + return -EINVAL; + + if (!segs) + return -EINVAL; + + status = ice_flow_val_hdrs(segs, segs_cnt); + if (status) + return status; + + mutex_lock(&hw->fl_profs_locks[blk]); + + status = ice_flow_add_prof_sync(hw, blk, dir, segs, segs_cnt, + symm, prof); + if (!status) + list_add(&(*prof)->l_entry, &hw->fl_profs[blk]); + + mutex_unlock(&hw->fl_profs_locks[blk]); + + return status; +} + +/** + * ice_flow_rem_prof - Remove a flow profile and all entries associated with it + * @hw: pointer to the HW struct + * @blk: the block for which the flow profile is to be removed + * @prof_id: unique ID of the flow profile to be removed + */ +int ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id) +{ + struct ice_flow_prof *prof; + int status; + + mutex_lock(&hw->fl_profs_locks[blk]); + + prof = ice_flow_find_prof_id(hw, blk, prof_id); + if (!prof) { + status = -ENOENT; + goto out; + } + + /* prof becomes invalid after the call */ + status = ice_flow_rem_prof_sync(hw, blk, prof); + +out: + mutex_unlock(&hw->fl_profs_locks[blk]); + + return status; +} + +/** + * ice_flow_add_entry - Add a flow entry + * @hw: pointer to the HW struct + * @blk: classification stage + * @prof_id: ID of the profile to add a new flow entry to + * @entry_id: unique ID to identify this flow entry + * @vsi_handle: software VSI handle for the flow entry + * @prio: priority of the flow entry + * @data: pointer to a data buffer containing flow entry's match values/masks + * @entry_h: pointer to buffer that receives the new flow entry's handle + */ +int +ice_flow_add_entry(struct ice_hw *hw, enum ice_block blk, u64 prof_id, + u64 entry_id, u16 vsi_handle, enum ice_flow_priority prio, + void *data, u64 *entry_h) +{ + struct ice_flow_entry *e = NULL; + struct ice_flow_prof *prof; + int status; + + /* No flow entry data is expected for RSS */ + if (!entry_h || (!data && blk != ICE_BLK_RSS)) + return -EINVAL; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return -EINVAL; + + mutex_lock(&hw->fl_profs_locks[blk]); + + prof = ice_flow_find_prof_id(hw, blk, prof_id); + if (!prof) { + status = -ENOENT; + } else { + /* Allocate memory for the entry being added and associate + * the VSI to the found flow profile + */ + e = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*e), GFP_KERNEL); + if (!e) + status = -ENOMEM; + else + status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle); + } + + mutex_unlock(&hw->fl_profs_locks[blk]); + if (status) + goto out; + + e->id = entry_id; + e->vsi_handle = vsi_handle; + e->prof = prof; + e->priority = prio; + + switch (blk) { + case ICE_BLK_FD: + case ICE_BLK_RSS: + break; + default: + status = -EOPNOTSUPP; + goto out; + } + + mutex_lock(&prof->entries_lock); + list_add(&e->l_entry, &prof->entries); + mutex_unlock(&prof->entries_lock); + + *entry_h = ICE_FLOW_ENTRY_HNDL(e); + +out: + if (status) + devm_kfree(ice_hw_to_dev(hw), e); + + return status; +} + +/** + * ice_flow_rem_entry - Remove a flow entry + * @hw: pointer to the HW struct + * @blk: classification stage + * @entry_h: handle to the flow entry to be removed + */ +int ice_flow_rem_entry(struct ice_hw *hw, enum ice_block blk, u64 entry_h) +{ + struct ice_flow_entry *entry; + struct ice_flow_prof *prof; + int status = 0; + + if (entry_h == ICE_FLOW_ENTRY_HANDLE_INVAL) + return -EINVAL; + + entry = ICE_FLOW_ENTRY_PTR(entry_h); + + /* Retain the pointer to the flow profile as the entry will be freed */ + prof = entry->prof; + + if (prof) { + mutex_lock(&prof->entries_lock); + status = ice_flow_rem_entry_sync(hw, blk, entry); + mutex_unlock(&prof->entries_lock); + } + + return status; +} + +/** + * ice_flow_set_fld_ext - specifies locations of field from entry's input buffer + * @seg: packet segment the field being set belongs to + * @fld: field to be set + * @field_type: type of the field + * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from + * entry's input buffer + * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's + * input buffer + * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from + * entry's input buffer + * + * This helper function stores information of a field being matched, including + * the type of the field and the locations of the value to match, the mask, and + * the upper-bound value in the start of the input buffer for a flow entry. + * This function should only be used for fixed-size data structures. + * + * This function also opportunistically determines the protocol headers to be + * present based on the fields being set. Some fields cannot be used alone to + * determine the protocol headers present. Sometimes, fields for particular + * protocol headers are not matched. In those cases, the protocol headers + * must be explicitly set. + */ +static void +ice_flow_set_fld_ext(struct ice_flow_seg_info *seg, enum ice_flow_field fld, + enum ice_flow_fld_match_type field_type, u16 val_loc, + u16 mask_loc, u16 last_loc) +{ + u64 bit = BIT_ULL(fld); + + seg->match |= bit; + if (field_type == ICE_FLOW_FLD_TYPE_RANGE) + seg->range |= bit; + + seg->fields[fld].type = field_type; + seg->fields[fld].src.val = val_loc; + seg->fields[fld].src.mask = mask_loc; + seg->fields[fld].src.last = last_loc; + + ICE_FLOW_SET_HDRS(seg, ice_flds_info[fld].hdr); +} + +/** + * ice_flow_set_fld - specifies locations of field from entry's input buffer + * @seg: packet segment the field being set belongs to + * @fld: field to be set + * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from + * entry's input buffer + * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's + * input buffer + * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from + * entry's input buffer + * @range: indicate if field being matched is to be in a range + * + * This function specifies the locations, in the form of byte offsets from the + * start of the input buffer for a flow entry, from where the value to match, + * the mask value, and upper value can be extracted. These locations are then + * stored in the flow profile. When adding a flow entry associated with the + * flow profile, these locations will be used to quickly extract the values and + * create the content of a match entry. This function should only be used for + * fixed-size data structures. + */ +void +ice_flow_set_fld(struct ice_flow_seg_info *seg, enum ice_flow_field fld, + u16 val_loc, u16 mask_loc, u16 last_loc, bool range) +{ + enum ice_flow_fld_match_type t = range ? + ICE_FLOW_FLD_TYPE_RANGE : ICE_FLOW_FLD_TYPE_REG; + + ice_flow_set_fld_ext(seg, fld, t, val_loc, mask_loc, last_loc); +} + +/** + * ice_flow_add_fld_raw - sets locations of a raw field from entry's input buf + * @seg: packet segment the field being set belongs to + * @off: offset of the raw field from the beginning of the segment in bytes + * @len: length of the raw pattern to be matched + * @val_loc: location of the value to match from entry's input buffer + * @mask_loc: location of mask value from entry's input buffer + * + * This function specifies the offset of the raw field to be match from the + * beginning of the specified packet segment, and the locations, in the form of + * byte offsets from the start of the input buffer for a flow entry, from where + * the value to match and the mask value to be extracted. These locations are + * then stored in the flow profile. When adding flow entries to the associated + * flow profile, these locations can be used to quickly extract the values to + * create the content of a match entry. This function should only be used for + * fixed-size data structures. + */ +void +ice_flow_add_fld_raw(struct ice_flow_seg_info *seg, u16 off, u8 len, + u16 val_loc, u16 mask_loc) +{ + if (seg->raws_cnt < ICE_FLOW_SEG_RAW_FLD_MAX) { + seg->raws[seg->raws_cnt].off = off; + seg->raws[seg->raws_cnt].info.type = ICE_FLOW_FLD_TYPE_SIZE; + seg->raws[seg->raws_cnt].info.src.val = val_loc; + seg->raws[seg->raws_cnt].info.src.mask = mask_loc; + /* The "last" field is used to store the length of the field */ + seg->raws[seg->raws_cnt].info.src.last = len; + } + + /* Overflows of "raws" will be handled as an error condition later in + * the flow when this information is processed. + */ + seg->raws_cnt++; +} + +/** + * ice_flow_rem_vsi_prof - remove VSI from flow profile + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @prof_id: unique ID to identify this flow profile + * + * This function removes the flow entries associated to the input + * VSI handle and disassociate the VSI from the flow profile. + */ +int ice_flow_rem_vsi_prof(struct ice_hw *hw, u16 vsi_handle, u64 prof_id) +{ + struct ice_flow_prof *prof; + int status = 0; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return -EINVAL; + + /* find flow profile pointer with input package block and profile ID */ + prof = ice_flow_find_prof_id(hw, ICE_BLK_FD, prof_id); + if (!prof) { + ice_debug(hw, ICE_DBG_PKG, "Cannot find flow profile id=%llu\n", + prof_id); + return -ENOENT; + } + + /* Remove all remaining flow entries before removing the flow profile */ + if (!list_empty(&prof->entries)) { + struct ice_flow_entry *e, *t; + + mutex_lock(&prof->entries_lock); + list_for_each_entry_safe(e, t, &prof->entries, l_entry) { + if (e->vsi_handle != vsi_handle) + continue; + + status = ice_flow_rem_entry_sync(hw, ICE_BLK_FD, e); + if (status) + break; + } + mutex_unlock(&prof->entries_lock); + } + if (status) + return status; + + /* disassociate the flow profile from sw VSI handle */ + status = ice_flow_disassoc_prof(hw, ICE_BLK_FD, prof, vsi_handle); + if (status) + ice_debug(hw, ICE_DBG_PKG, "ice_flow_disassoc_prof() failed with status=%d\n", + status); + return status; +} + +#define ICE_FLOW_RSS_SEG_HDR_L2_MASKS \ + (ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN) + +#define ICE_FLOW_RSS_SEG_HDR_L3_MASKS \ + (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6) + +#define ICE_FLOW_RSS_SEG_HDR_L4_MASKS \ + (ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_SCTP) + +#define ICE_FLOW_RSS_SEG_HDR_VAL_MASKS \ + (ICE_FLOW_RSS_SEG_HDR_L2_MASKS | \ + ICE_FLOW_RSS_SEG_HDR_L3_MASKS | \ + ICE_FLOW_RSS_SEG_HDR_L4_MASKS) + +/** + * ice_flow_set_rss_seg_info - setup packet segments for RSS + * @segs: pointer to the flow field segment(s) + * @seg_cnt: segment count + * @cfg: configure parameters + * + * Helper function to extract fields from hash bitmap and use flow + * header value to set flow field segment for further use in flow + * profile entry or removal. + */ +static int +ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u8 seg_cnt, + const struct ice_rss_hash_cfg *cfg) +{ + struct ice_flow_seg_info *seg; + u64 val; + u16 i; + + /* set inner most segment */ + seg = &segs[seg_cnt - 1]; + + for_each_set_bit(i, (const unsigned long *)&cfg->hash_flds, + (u16)ICE_FLOW_FIELD_IDX_MAX) + ice_flow_set_fld(seg, (enum ice_flow_field)i, + ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL, + ICE_FLOW_FLD_OFF_INVAL, false); + + ICE_FLOW_SET_HDRS(seg, cfg->addl_hdrs); + + /* set outer most header */ + if (cfg->hdr_type == ICE_RSS_INNER_HEADERS_W_OUTER_IPV4) + segs[ICE_RSS_OUTER_HEADERS].hdrs |= ICE_FLOW_SEG_HDR_IPV4 | + ICE_FLOW_SEG_HDR_IPV_OTHER; + else if (cfg->hdr_type == ICE_RSS_INNER_HEADERS_W_OUTER_IPV6) + segs[ICE_RSS_OUTER_HEADERS].hdrs |= ICE_FLOW_SEG_HDR_IPV6 | + ICE_FLOW_SEG_HDR_IPV_OTHER; + + if (seg->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS & + ~ICE_FLOW_RSS_HDRS_INNER_MASK & ~ICE_FLOW_SEG_HDR_IPV_OTHER) + return -EINVAL; + + val = (u64)(seg->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS); + if (val && !is_power_of_2(val)) + return -EIO; + + val = (u64)(seg->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS); + if (val && !is_power_of_2(val)) + return -EIO; + + return 0; +} + +/** + * ice_rem_vsi_rss_list - remove VSI from RSS list + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * + * Remove the VSI from all RSS configurations in the list. + */ +void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle) +{ + struct ice_rss_cfg *r, *tmp; + + if (list_empty(&hw->rss_list_head)) + return; + + mutex_lock(&hw->rss_locks); + list_for_each_entry_safe(r, tmp, &hw->rss_list_head, l_entry) + if (test_and_clear_bit(vsi_handle, r->vsis)) + if (bitmap_empty(r->vsis, ICE_MAX_VSI)) { + list_del(&r->l_entry); + devm_kfree(ice_hw_to_dev(hw), r); + } + mutex_unlock(&hw->rss_locks); +} + +/** + * ice_rem_vsi_rss_cfg - remove RSS configurations associated with VSI + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * + * This function will iterate through all flow profiles and disassociate + * the VSI from that profile. If the flow profile has no VSIs it will + * be removed. + */ +int ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle) +{ + const enum ice_block blk = ICE_BLK_RSS; + struct ice_flow_prof *p, *t; + int status = 0; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return -EINVAL; + + if (list_empty(&hw->fl_profs[blk])) + return 0; + + mutex_lock(&hw->rss_locks); + list_for_each_entry_safe(p, t, &hw->fl_profs[blk], l_entry) + if (test_bit(vsi_handle, p->vsis)) { + status = ice_flow_disassoc_prof(hw, blk, p, vsi_handle); + if (status) + break; + + if (bitmap_empty(p->vsis, ICE_MAX_VSI)) { + status = ice_flow_rem_prof(hw, blk, p->id); + if (status) + break; + } + } + mutex_unlock(&hw->rss_locks); + + return status; +} + +/** + * ice_get_rss_hdr_type - get a RSS profile's header type + * @prof: RSS flow profile + */ +static enum ice_rss_cfg_hdr_type +ice_get_rss_hdr_type(struct ice_flow_prof *prof) +{ + if (prof->segs_cnt == ICE_FLOW_SEG_SINGLE) { + return ICE_RSS_OUTER_HEADERS; + } else if (prof->segs_cnt == ICE_FLOW_SEG_MAX) { + const struct ice_flow_seg_info *s; + + s = &prof->segs[ICE_RSS_OUTER_HEADERS]; + if (s->hdrs == ICE_FLOW_SEG_HDR_NONE) + return ICE_RSS_INNER_HEADERS; + if (s->hdrs & ICE_FLOW_SEG_HDR_IPV4) + return ICE_RSS_INNER_HEADERS_W_OUTER_IPV4; + if (s->hdrs & ICE_FLOW_SEG_HDR_IPV6) + return ICE_RSS_INNER_HEADERS_W_OUTER_IPV6; + } + + return ICE_RSS_ANY_HEADERS; +} + +static bool +ice_rss_match_prof(struct ice_rss_cfg *r, struct ice_flow_prof *prof, + enum ice_rss_cfg_hdr_type hdr_type) +{ + return (r->hash.hdr_type == hdr_type && + r->hash.hash_flds == prof->segs[prof->segs_cnt - 1].match && + r->hash.addl_hdrs == prof->segs[prof->segs_cnt - 1].hdrs); +} + +/** + * ice_rem_rss_list - remove RSS configuration from list + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @prof: pointer to flow profile + * + * Assumption: lock has already been acquired for RSS list + */ +static void +ice_rem_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) +{ + enum ice_rss_cfg_hdr_type hdr_type; + struct ice_rss_cfg *r, *tmp; + + /* Search for RSS hash fields associated to the VSI that match the + * hash configurations associated to the flow profile. If found + * remove from the RSS entry list of the VSI context and delete entry. + */ + hdr_type = ice_get_rss_hdr_type(prof); + list_for_each_entry_safe(r, tmp, &hw->rss_list_head, l_entry) + if (ice_rss_match_prof(r, prof, hdr_type)) { + clear_bit(vsi_handle, r->vsis); + if (bitmap_empty(r->vsis, ICE_MAX_VSI)) { + list_del(&r->l_entry); + devm_kfree(ice_hw_to_dev(hw), r); + } + return; + } +} + +/** + * ice_add_rss_list - add RSS configuration to list + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @prof: pointer to flow profile + * + * Assumption: lock has already been acquired for RSS list + */ +static int +ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof) +{ + enum ice_rss_cfg_hdr_type hdr_type; + struct ice_rss_cfg *r, *rss_cfg; + + hdr_type = ice_get_rss_hdr_type(prof); + list_for_each_entry(r, &hw->rss_list_head, l_entry) + if (ice_rss_match_prof(r, prof, hdr_type)) { + set_bit(vsi_handle, r->vsis); + return 0; + } + + rss_cfg = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*rss_cfg), + GFP_KERNEL); + if (!rss_cfg) + return -ENOMEM; + + rss_cfg->hash.hash_flds = prof->segs[prof->segs_cnt - 1].match; + rss_cfg->hash.addl_hdrs = prof->segs[prof->segs_cnt - 1].hdrs; + rss_cfg->hash.hdr_type = hdr_type; + rss_cfg->hash.symm = prof->symm; + set_bit(vsi_handle, rss_cfg->vsis); + + list_add_tail(&rss_cfg->l_entry, &hw->rss_list_head); + + return 0; +} + +/** + * ice_rss_config_xor_word - set the HSYMM registers for one input set word + * @hw: pointer to the hardware structure + * @prof_id: RSS hardware profile id + * @src: the FV index used by the protocol's source field + * @dst: the FV index used by the protocol's destination field + * + * Write to the HSYMM register with the index of @src FV the value of the @dst + * FV index. This will tell the hardware to XOR HSYMM[src] with INSET[dst] + * while calculating the RSS input set. + */ +static void +ice_rss_config_xor_word(struct ice_hw *hw, u8 prof_id, u8 src, u8 dst) +{ + u32 val, reg, bits_shift; + u8 reg_idx; + + reg_idx = src / GLQF_HSYMM_REG_SIZE; + bits_shift = ((src % GLQF_HSYMM_REG_SIZE) << 3); + val = dst | GLQF_HSYMM_ENABLE_BIT; + + reg = rd32(hw, GLQF_HSYMM(prof_id, reg_idx)); + reg = (reg & ~(0xff << bits_shift)) | (val << bits_shift); + wr32(hw, GLQF_HSYMM(prof_id, reg_idx), reg); +} + +/** + * ice_rss_config_xor - set the symmetric registers for a profile's protocol + * @hw: pointer to the hardware structure + * @prof_id: RSS hardware profile id + * @src: the FV index used by the protocol's source field + * @dst: the FV index used by the protocol's destination field + * @len: length of the source/destination fields in words + */ +static void +ice_rss_config_xor(struct ice_hw *hw, u8 prof_id, u8 src, u8 dst, u8 len) +{ + int fv_last_word = + ICE_FLOW_SW_FIELD_VECTOR_MAX / ICE_FLOW_FV_EXTRACT_SZ - 1; + int i; + + for (i = 0; i < len; i++) { + ice_rss_config_xor_word(hw, prof_id, + /* Yes, field vector in GLQF_HSYMM and + * GLQF_HINSET is inversed! + */ + fv_last_word - (src + i), + fv_last_word - (dst + i)); + ice_rss_config_xor_word(hw, prof_id, + fv_last_word - (dst + i), + fv_last_word - (src + i)); + } +} + +/** + * ice_rss_set_symm - set the symmetric settings for an RSS profile + * @hw: pointer to the hardware structure + * @prof: pointer to flow profile + * + * The symmetric hash will result from XORing the protocol's fields with + * indexes in GLQF_HSYMM and GLQF_HINSET. This function configures the profile's + * GLQF_HSYMM registers. + */ +static void ice_rss_set_symm(struct ice_hw *hw, struct ice_flow_prof *prof) +{ + struct ice_prof_map *map; + u8 prof_id, m; + + mutex_lock(&hw->blk[ICE_BLK_RSS].es.prof_map_lock); + map = ice_search_prof_id(hw, ICE_BLK_RSS, prof->id); + if (map) + prof_id = map->prof_id; + mutex_unlock(&hw->blk[ICE_BLK_RSS].es.prof_map_lock); + + if (!map) + return; + + /* clear to default */ + for (m = 0; m < GLQF_HSYMM_REG_PER_PROF; m++) + wr32(hw, GLQF_HSYMM(prof_id, m), 0); + + if (prof->symm) { + struct ice_flow_seg_xtrct *ipv4_src, *ipv4_dst; + struct ice_flow_seg_xtrct *ipv6_src, *ipv6_dst; + struct ice_flow_seg_xtrct *sctp_src, *sctp_dst; + struct ice_flow_seg_xtrct *tcp_src, *tcp_dst; + struct ice_flow_seg_xtrct *udp_src, *udp_dst; + struct ice_flow_seg_info *seg; + + seg = &prof->segs[prof->segs_cnt - 1]; + + ipv4_src = &seg->fields[ICE_FLOW_FIELD_IDX_IPV4_SA].xtrct; + ipv4_dst = &seg->fields[ICE_FLOW_FIELD_IDX_IPV4_DA].xtrct; + + ipv6_src = &seg->fields[ICE_FLOW_FIELD_IDX_IPV6_SA].xtrct; + ipv6_dst = &seg->fields[ICE_FLOW_FIELD_IDX_IPV6_DA].xtrct; + + tcp_src = &seg->fields[ICE_FLOW_FIELD_IDX_TCP_SRC_PORT].xtrct; + tcp_dst = &seg->fields[ICE_FLOW_FIELD_IDX_TCP_DST_PORT].xtrct; + + udp_src = &seg->fields[ICE_FLOW_FIELD_IDX_UDP_SRC_PORT].xtrct; + udp_dst = &seg->fields[ICE_FLOW_FIELD_IDX_UDP_DST_PORT].xtrct; + + sctp_src = &seg->fields[ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT].xtrct; + sctp_dst = &seg->fields[ICE_FLOW_FIELD_IDX_SCTP_DST_PORT].xtrct; + + /* xor IPv4 */ + if (ipv4_src->prot_id != 0 && ipv4_dst->prot_id != 0) + ice_rss_config_xor(hw, prof_id, + ipv4_src->idx, ipv4_dst->idx, 2); + + /* xor IPv6 */ + if (ipv6_src->prot_id != 0 && ipv6_dst->prot_id != 0) + ice_rss_config_xor(hw, prof_id, + ipv6_src->idx, ipv6_dst->idx, 8); + + /* xor TCP */ + if (tcp_src->prot_id != 0 && tcp_dst->prot_id != 0) + ice_rss_config_xor(hw, prof_id, + tcp_src->idx, tcp_dst->idx, 1); + + /* xor UDP */ + if (udp_src->prot_id != 0 && udp_dst->prot_id != 0) + ice_rss_config_xor(hw, prof_id, + udp_src->idx, udp_dst->idx, 1); + + /* xor SCTP */ + if (sctp_src->prot_id != 0 && sctp_dst->prot_id != 0) + ice_rss_config_xor(hw, prof_id, + sctp_src->idx, sctp_dst->idx, 1); + } +} + +/** + * ice_rss_cfg_raw_symm - Configure symmetric RSS for a raw parser profile + * @hw: device HW + * @prof: parser profile describing extracted FV (field vector) entries + * @prof_id: RSS profile identifier used to program symmetry registers + * + * The routine scans the parser profile's FV entries and looks for + * direction-sensitive pairs (L3 src/dst, L4 src/dst). When a pair is found, + * it programs XOR-based symmetry so that flows hash identically regardless + * of packet direction. This preserves CPU affinity for the same 5-tuple. + * + * Notes: + * - The size of each logical field (IPv4/IPv6 address, L4 port) is expressed + * in units of ICE_FLOW_FV_EXTRACT_SZ so we can step across fv[] correctly. + * - We guard against out-of-bounds access before looking at fv[i + len]. + */ +static void ice_rss_cfg_raw_symm(struct ice_hw *hw, + const struct ice_parser_profile *prof, + u64 prof_id) +{ + for (size_t i = 0; i < prof->fv_num; i++) { + u8 proto_id = prof->fv[i].proto_id; + u16 src_off = 0, dst_off = 0; + size_t src_idx, dst_idx; + bool is_matched = false; + unsigned int len = 0; + + switch (proto_id) { + /* IPv4 address pairs (outer/inner variants) */ + case ICE_PROT_IPV4_OF_OR_S: + case ICE_PROT_IPV4_IL: + case ICE_PROT_IPV4_IL_IL: + len = ICE_FLOW_FLD_SZ_IPV4_ADDR / + ICE_FLOW_FV_EXTRACT_SZ; + src_off = ICE_FLOW_FIELD_IPV4_SRC_OFFSET; + dst_off = ICE_FLOW_FIELD_IPV4_DST_OFFSET; + break; + + /* IPv6 address pairs (outer/inner variants) */ + case ICE_PROT_IPV6_OF_OR_S: + case ICE_PROT_IPV6_IL: + case ICE_PROT_IPV6_IL_IL: + len = ICE_FLOW_FLD_SZ_IPV6_ADDR / + ICE_FLOW_FV_EXTRACT_SZ; + src_off = ICE_FLOW_FIELD_IPV6_SRC_OFFSET; + dst_off = ICE_FLOW_FIELD_IPV6_DST_OFFSET; + break; + + /* L4 port pairs (TCP/UDP/SCTP) */ + case ICE_PROT_TCP_IL: + case ICE_PROT_UDP_IL_OR_S: + case ICE_PROT_SCTP_IL: + len = ICE_FLOW_FLD_SZ_PORT / ICE_FLOW_FV_EXTRACT_SZ; + src_off = ICE_FLOW_FIELD_SRC_PORT_OFFSET; + dst_off = ICE_FLOW_FIELD_DST_PORT_OFFSET; + break; + + default: + continue; + } + + /* Bounds check before accessing fv[i + len]. */ + if (i + len >= prof->fv_num) + continue; + + /* Verify src/dst pairing for this protocol id. */ + is_matched = prof->fv[i].offset == src_off && + prof->fv[i + len].proto_id == proto_id && + prof->fv[i + len].offset == dst_off; + if (!is_matched) + continue; + + /* Program XOR symmetry for this field pair. */ + src_idx = i; + dst_idx = i + len; + + ice_rss_config_xor(hw, prof_id, src_idx, dst_idx, len); + + /* Skip over the pair we just handled; the loop's ++i advances + * one more element, hence the --i after the jump. + */ + i += (2 * len); + /* not strictly needed; keeps static analyzers happy */ + if (i == 0) + break; + --i; + } +} + +/* Max registers index per packet profile */ +#define ICE_SYMM_REG_INDEX_MAX 6 + +/** + * ice_rss_update_raw_symm - update symmetric hash configuration + * for raw pattern + * @hw: pointer to the hardware structure + * @cfg: configure parameters for raw pattern + * @id: profile tracking ID + * + * Update symmetric hash configuration for raw pattern if required. + * Otherwise only clear to default. + */ +void +ice_rss_update_raw_symm(struct ice_hw *hw, + struct ice_rss_raw_cfg *cfg, u64 id) +{ + struct ice_prof_map *map; + u8 prof_id, m; + + mutex_lock(&hw->blk[ICE_BLK_RSS].es.prof_map_lock); + map = ice_search_prof_id(hw, ICE_BLK_RSS, id); + if (map) + prof_id = map->prof_id; + mutex_unlock(&hw->blk[ICE_BLK_RSS].es.prof_map_lock); + if (!map) + return; + /* clear to default */ + for (m = 0; m < ICE_SYMM_REG_INDEX_MAX; m++) + wr32(hw, GLQF_HSYMM(prof_id, m), 0); + + if (cfg->symm) + ice_rss_cfg_raw_symm(hw, &cfg->prof, prof_id); +} + +/** + * ice_add_rss_cfg_sync - add an RSS configuration + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @cfg: configure parameters + * + * Assumption: lock has already been acquired for RSS list + */ +static int +ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg) +{ + const enum ice_block blk = ICE_BLK_RSS; + struct ice_flow_prof *prof = NULL; + struct ice_flow_seg_info *segs; + u8 segs_cnt; + int status; + + segs_cnt = (cfg->hdr_type == ICE_RSS_OUTER_HEADERS) ? + ICE_FLOW_SEG_SINGLE : ICE_FLOW_SEG_MAX; + + segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL); + if (!segs) + return -ENOMEM; + + /* Construct the packet segment info from the hashed fields */ + status = ice_flow_set_rss_seg_info(segs, segs_cnt, cfg); + if (status) + goto exit; + + /* Search for a flow profile that has matching headers, hash fields, + * symm and has the input VSI associated to it. If found, no further + * operations required and exit. + */ + prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, + cfg->symm, vsi_handle, + ICE_FLOW_FIND_PROF_CHK_FLDS | + ICE_FLOW_FIND_PROF_CHK_SYMM | + ICE_FLOW_FIND_PROF_CHK_VSI); + if (prof) + goto exit; + + /* Check if a flow profile exists with the same protocol headers and + * associated with the input VSI. If so disassociate the VSI from + * this profile. The VSI will be added to a new profile created with + * the protocol header and new hash field configuration. + */ + prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, + cfg->symm, vsi_handle, + ICE_FLOW_FIND_PROF_CHK_VSI); + if (prof) { + status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle); + if (!status) + ice_rem_rss_list(hw, vsi_handle, prof); + else + goto exit; + + /* Remove profile if it has no VSIs associated */ + if (bitmap_empty(prof->vsis, ICE_MAX_VSI)) { + status = ice_flow_rem_prof(hw, blk, prof->id); + if (status) + goto exit; + } + } + + /* Search for a profile that has the same match fields and symmetric + * setting. If this exists then associate the VSI to this profile. + */ + prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, + cfg->symm, vsi_handle, + ICE_FLOW_FIND_PROF_CHK_SYMM | + ICE_FLOW_FIND_PROF_CHK_FLDS); + if (prof) { + status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle); + if (!status) + status = ice_add_rss_list(hw, vsi_handle, prof); + goto exit; + } + + /* Create a new flow profile with packet segment information. */ + status = ice_flow_add_prof(hw, blk, ICE_FLOW_RX, + segs, segs_cnt, cfg->symm, &prof); + if (status) + goto exit; + + prof->symm = cfg->symm; + ice_rss_set_symm(hw, prof); + status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle); + /* If association to a new flow profile failed then this profile can + * be removed. + */ + if (status) { + ice_flow_rem_prof(hw, blk, prof->id); + goto exit; + } + + status = ice_add_rss_list(hw, vsi_handle, prof); + +exit: + kfree(segs); + return status; +} + +/** + * ice_add_rss_cfg - add an RSS configuration with specified hashed fields + * @hw: pointer to the hardware structure + * @vsi: VSI to add the RSS configuration to + * @cfg: configure parameters + * + * This function will generate a flow profile based on fields associated with + * the input fields to hash on, the flow type and use the VSI number to add + * a flow entry to the profile. + */ +int +ice_add_rss_cfg(struct ice_hw *hw, struct ice_vsi *vsi, + const struct ice_rss_hash_cfg *cfg) +{ + struct ice_rss_hash_cfg local_cfg; + u16 vsi_handle; + int status; + + if (!vsi) + return -EINVAL; + + vsi_handle = vsi->idx; + if (!ice_is_vsi_valid(hw, vsi_handle) || + !cfg || cfg->hdr_type > ICE_RSS_ANY_HEADERS || + cfg->hash_flds == ICE_HASH_INVALID) + return -EINVAL; + + mutex_lock(&hw->rss_locks); + local_cfg = *cfg; + if (cfg->hdr_type < ICE_RSS_ANY_HEADERS) { + status = ice_add_rss_cfg_sync(hw, vsi_handle, &local_cfg); + } else { + local_cfg.hdr_type = ICE_RSS_OUTER_HEADERS; + status = ice_add_rss_cfg_sync(hw, vsi_handle, &local_cfg); + if (!status) { + local_cfg.hdr_type = ICE_RSS_INNER_HEADERS; + status = ice_add_rss_cfg_sync(hw, vsi_handle, + &local_cfg); + } + } + mutex_unlock(&hw->rss_locks); + + return status; +} + +/** + * ice_rem_rss_cfg_sync - remove an existing RSS configuration + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @cfg: configure parameters + * + * Assumption: lock has already been acquired for RSS list + */ +static int +ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg) +{ + const enum ice_block blk = ICE_BLK_RSS; + struct ice_flow_seg_info *segs; + struct ice_flow_prof *prof; + u8 segs_cnt; + int status; + + segs_cnt = (cfg->hdr_type == ICE_RSS_OUTER_HEADERS) ? + ICE_FLOW_SEG_SINGLE : ICE_FLOW_SEG_MAX; + segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL); + if (!segs) + return -ENOMEM; + + /* Construct the packet segment info from the hashed fields */ + status = ice_flow_set_rss_seg_info(segs, segs_cnt, cfg); + if (status) + goto out; + + prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt, + cfg->symm, vsi_handle, + ICE_FLOW_FIND_PROF_CHK_FLDS); + if (!prof) { + status = -ENOENT; + goto out; + } + + status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle); + if (status) + goto out; + + /* Remove RSS configuration from VSI context before deleting + * the flow profile. + */ + ice_rem_rss_list(hw, vsi_handle, prof); + + if (bitmap_empty(prof->vsis, ICE_MAX_VSI)) + status = ice_flow_rem_prof(hw, blk, prof->id); + +out: + kfree(segs); + return status; +} + +/** + * ice_rem_rss_cfg - remove an existing RSS config with matching hashed fields + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @cfg: configure parameters + * + * This function will lookup the flow profile based on the input + * hash field bitmap, iterate through the profile entry list of + * that profile and find entry associated with input VSI to be + * removed. Calls are made to underlying flow apis which will in + * turn build or update buffers for RSS XLT1 section. + */ +int +ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, + const struct ice_rss_hash_cfg *cfg) +{ + struct ice_rss_hash_cfg local_cfg; + int status; + + if (!ice_is_vsi_valid(hw, vsi_handle) || + !cfg || cfg->hdr_type > ICE_RSS_ANY_HEADERS || + cfg->hash_flds == ICE_HASH_INVALID) + return -EINVAL; + + mutex_lock(&hw->rss_locks); + local_cfg = *cfg; + if (cfg->hdr_type < ICE_RSS_ANY_HEADERS) { + status = ice_rem_rss_cfg_sync(hw, vsi_handle, &local_cfg); + } else { + local_cfg.hdr_type = ICE_RSS_OUTER_HEADERS; + status = ice_rem_rss_cfg_sync(hw, vsi_handle, &local_cfg); + if (!status) { + local_cfg.hdr_type = ICE_RSS_INNER_HEADERS; + status = ice_rem_rss_cfg_sync(hw, vsi_handle, + &local_cfg); + } + } + mutex_unlock(&hw->rss_locks); + + return status; +} + +/* Mapping of AVF hash bit fields to an L3-L4 hash combination. + * As the ice_flow_avf_hdr_field represent individual bit shifts in a hash, + * convert its values to their appropriate flow L3, L4 values. + */ +#define ICE_FLOW_AVF_RSS_IPV4_MASKS \ + (BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER) | \ + BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV4)) +#define ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS \ + (BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK) | \ + BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP)) +#define ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS \ + (BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | \ + BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP) | \ + BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP)) +#define ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS \ + (ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS | \ + ICE_FLOW_AVF_RSS_IPV4_MASKS | BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_SCTP)) + +#define ICE_FLOW_AVF_RSS_IPV6_MASKS \ + (BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER) | \ + BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV6)) +#define ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS \ + (BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | \ + BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP) | \ + BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP)) +#define ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS \ + (BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK) | \ + BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP)) +#define ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS \ + (ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS | \ + ICE_FLOW_AVF_RSS_IPV6_MASKS | BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_SCTP)) + +/** + * ice_add_avf_rss_cfg - add an RSS configuration for AVF driver + * @hw: pointer to the hardware structure + * @vsi: VF's VSI + * @avf_hash: hash bit fields (LIBIE_FILTER_PCTYPE_*) to configure + * + * This function will take the hash bitmap provided by the AVF driver via a + * message, convert it to ICE-compatible values, and configure RSS flow + * profiles. + */ +int ice_add_avf_rss_cfg(struct ice_hw *hw, struct ice_vsi *vsi, u64 avf_hash) +{ + struct ice_rss_hash_cfg hcfg; + u16 vsi_handle; + int status = 0; + u64 hash_flds; + + if (!vsi) + return -EINVAL; + + vsi_handle = vsi->idx; + if (!avf_hash || !ice_is_vsi_valid(hw, vsi_handle)) + return -EINVAL; + + /* Make sure no unsupported bits are specified */ + if (avf_hash & ~(ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS | + ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS)) + return -EIO; + + hash_flds = avf_hash; + + /* Always create an L3 RSS configuration for any L4 RSS configuration */ + if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS) + hash_flds |= ICE_FLOW_AVF_RSS_IPV4_MASKS; + + if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS) + hash_flds |= ICE_FLOW_AVF_RSS_IPV6_MASKS; + + /* Create the corresponding RSS configuration for each valid hash bit */ + while (hash_flds) { + u64 rss_hash = ICE_HASH_INVALID; + + if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS) { + if (hash_flds & ICE_FLOW_AVF_RSS_IPV4_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV4; + hash_flds &= ~ICE_FLOW_AVF_RSS_IPV4_MASKS; + } else if (hash_flds & + ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV4 | + ICE_FLOW_HASH_TCP_PORT; + hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS; + } else if (hash_flds & + ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV4 | + ICE_FLOW_HASH_UDP_PORT; + hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS; + } else if (hash_flds & + BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_SCTP)) { + rss_hash = ICE_FLOW_HASH_IPV4 | + ICE_FLOW_HASH_SCTP_PORT; + hash_flds &= + ~BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_SCTP); + } + } else if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS) { + if (hash_flds & ICE_FLOW_AVF_RSS_IPV6_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV6; + hash_flds &= ~ICE_FLOW_AVF_RSS_IPV6_MASKS; + } else if (hash_flds & + ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV6 | + ICE_FLOW_HASH_TCP_PORT; + hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS; + } else if (hash_flds & + ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV6 | + ICE_FLOW_HASH_UDP_PORT; + hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS; + } else if (hash_flds & + BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_SCTP)) { + rss_hash = ICE_FLOW_HASH_IPV6 | + ICE_FLOW_HASH_SCTP_PORT; + hash_flds &= + ~BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_SCTP); + } + } + + if (rss_hash == ICE_HASH_INVALID) + return -EIO; + + hcfg.addl_hdrs = ICE_FLOW_SEG_HDR_NONE; + hcfg.hash_flds = rss_hash; + hcfg.hdr_type = ICE_RSS_ANY_HEADERS; + hcfg.symm = false; + status = ice_add_rss_cfg(hw, vsi, &hcfg); + if (status) + break; + } + + return status; +} + +static bool rss_cfg_symm_valid(u64 hfld) +{ + return !((!!(hfld & ICE_FLOW_HASH_FLD_IPV4_SA) ^ + !!(hfld & ICE_FLOW_HASH_FLD_IPV4_DA)) || + (!!(hfld & ICE_FLOW_HASH_FLD_IPV6_SA) ^ + !!(hfld & ICE_FLOW_HASH_FLD_IPV6_DA)) || + (!!(hfld & ICE_FLOW_HASH_FLD_TCP_SRC_PORT) ^ + !!(hfld & ICE_FLOW_HASH_FLD_TCP_DST_PORT)) || + (!!(hfld & ICE_FLOW_HASH_FLD_UDP_SRC_PORT) ^ + !!(hfld & ICE_FLOW_HASH_FLD_UDP_DST_PORT)) || + (!!(hfld & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT) ^ + !!(hfld & ICE_FLOW_HASH_FLD_SCTP_DST_PORT))); +} + +/** + * ice_set_rss_cfg_symm - set symmtery for all VSI's RSS configurations + * @hw: pointer to the hardware structure + * @vsi: VSI to set/unset Symmetric RSS + * @symm: TRUE to set Symmetric RSS hashing + */ +int ice_set_rss_cfg_symm(struct ice_hw *hw, struct ice_vsi *vsi, bool symm) +{ + struct ice_rss_hash_cfg local; + struct ice_rss_cfg *r, *tmp; + u16 vsi_handle = vsi->idx; + int status = 0; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return -EINVAL; + + mutex_lock(&hw->rss_locks); + list_for_each_entry_safe(r, tmp, &hw->rss_list_head, l_entry) { + if (test_bit(vsi_handle, r->vsis) && r->hash.symm != symm) { + local = r->hash; + local.symm = symm; + if (symm && !rss_cfg_symm_valid(r->hash.hash_flds)) + continue; + + status = ice_add_rss_cfg_sync(hw, vsi_handle, &local); + if (status) + break; + } + } + mutex_unlock(&hw->rss_locks); + + return status; +} + +/** + * ice_replay_rss_cfg - replay RSS configurations associated with VSI + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + */ +int ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle) +{ + struct ice_rss_cfg *r; + int status = 0; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return -EINVAL; + + mutex_lock(&hw->rss_locks); + list_for_each_entry(r, &hw->rss_list_head, l_entry) { + if (test_bit(vsi_handle, r->vsis)) { + status = ice_add_rss_cfg_sync(hw, vsi_handle, &r->hash); + if (status) + break; + } + } + mutex_unlock(&hw->rss_locks); + + return status; +} + +/** + * ice_get_rss_cfg - returns hashed fields for the given header types + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @hdrs: protocol header type + * @symm: whether the RSS is symmetric (bool, output) + * + * This function will return the match fields of the first instance of flow + * profile having the given header types and containing input VSI + */ +u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs, bool *symm) +{ + u64 rss_hash = ICE_HASH_INVALID; + struct ice_rss_cfg *r; + + /* verify if the protocol header is non zero and VSI is valid */ + if (hdrs == ICE_FLOW_SEG_HDR_NONE || !ice_is_vsi_valid(hw, vsi_handle)) + return ICE_HASH_INVALID; + + mutex_lock(&hw->rss_locks); + list_for_each_entry(r, &hw->rss_list_head, l_entry) + if (test_bit(vsi_handle, r->vsis) && + r->hash.addl_hdrs == hdrs) { + rss_hash = r->hash.hash_flds; + *symm = r->hash.symm; + break; + } + mutex_unlock(&hw->rss_locks); + + return rss_hash; +} |