From: Qi Zhang Date: Wed, 16 Jan 2019 14:13:37 +0000 (+0800) Subject: net/ice/base: add flow module X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=aa1cd410fa64;p=dpdk.git net/ice/base: add flow module Add the module that implemented flow abstraction that base on flexible pipeline. Signed-off-by: Qi Zhang Signed-off-by: Paul M Stillwell Jr Acked-by: Wenzhuo Lu --- diff --git a/drivers/net/ice/Makefile b/drivers/net/ice/Makefile index 1bb76efc21..61846cae22 100644 --- a/drivers/net/ice/Makefile +++ b/drivers/net/ice/Makefile @@ -50,6 +50,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_ICE_PMD) += ice_sched.c SRCS-$(CONFIG_RTE_LIBRTE_ICE_PMD) += ice_switch.c SRCS-$(CONFIG_RTE_LIBRTE_ICE_PMD) += ice_nvm.c SRCS-$(CONFIG_RTE_LIBRTE_ICE_PMD) += ice_flex_pipe.c +SRCS-$(CONFIG_RTE_LIBRTE_ICE_PMD) += ice_flow.c SRCS-$(CONFIG_RTE_LIBRTE_ICE_PMD) += ice_ethdev.c SRCS-$(CONFIG_RTE_LIBRTE_ICE_PMD) += ice_rxtx.c diff --git a/drivers/net/ice/base/ice_common.h b/drivers/net/ice/base/ice_common.h index 67539ccb74..5ac991ef23 100644 --- a/drivers/net/ice/base/ice_common.h +++ b/drivers/net/ice/base/ice_common.h @@ -7,6 +7,7 @@ #include "ice_type.h" +#include "ice_flex_pipe.h" #include "ice_switch.h" enum ice_status ice_nvm_validate_checksum(struct ice_hw *hw); diff --git a/drivers/net/ice/base/ice_flow.c b/drivers/net/ice/base/ice_flow.c new file mode 100644 index 0000000000..cc3f69b51d --- /dev/null +++ b/drivers/net/ice/base/ice_flow.c @@ -0,0 +1,2080 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2001-2019 + */ + +#include "ice_common.h" +#include "ice_flow.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_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 + +/* Protocol header fields are extracted at the word boundaries as word-sized + * values. Specify the displacement value of some non-word-aligned fields needed + * to compute the offset of words containing the fields in the corresponding + * protocol headers. Displacement values are expressed in number of bits. + */ +#define ICE_FLOW_FLD_IPV6_TTL_DSCP_DISP (-4) +#define ICE_FLOW_FLD_IPV6_TTL_PROT_DISP ((-2) * 8) +#define ICE_FLOW_FLD_IPV6_TTL_TTL_DISP ((-1) * 8) + +/* 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 */ +}; + +/* 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_SEG_HDR_ETH, 0, ETH_ALEN * 8 }, + /* ICE_FLOW_FIELD_IDX_ETH_SA */ + { ICE_FLOW_SEG_HDR_ETH, ETH_ALEN * 8, ETH_ALEN * 8 }, + /* ICE_FLOW_FIELD_IDX_S_VLAN */ + { ICE_FLOW_SEG_HDR_VLAN, 12 * 8, ICE_FLOW_FLD_SZ_VLAN * 8 }, + /* ICE_FLOW_FIELD_IDX_C_VLAN */ + { ICE_FLOW_SEG_HDR_VLAN, 14 * 8, ICE_FLOW_FLD_SZ_VLAN * 8 }, + /* ICE_FLOW_FIELD_IDX_ETH_TYPE */ + { ICE_FLOW_SEG_HDR_ETH, 12 * 8, ICE_FLOW_FLD_SZ_ETH_TYPE * 8 }, + /* IPv4 */ + /* ICE_FLOW_FIELD_IDX_IP_DSCP */ + { ICE_FLOW_SEG_HDR_IPV4, 1 * 8, 1 * 8 }, + /* ICE_FLOW_FIELD_IDX_IP_TTL */ + { ICE_FLOW_SEG_HDR_NONE, 8 * 8, 1 * 8 }, + /* ICE_FLOW_FIELD_IDX_IP_PROT */ + { ICE_FLOW_SEG_HDR_NONE, 9 * 8, ICE_FLOW_FLD_SZ_IP_PROT * 8 }, + /* ICE_FLOW_FIELD_IDX_IPV4_SA */ + { ICE_FLOW_SEG_HDR_IPV4, 12 * 8, ICE_FLOW_FLD_SZ_IPV4_ADDR * 8 }, + /* ICE_FLOW_FIELD_IDX_IPV4_DA */ + { ICE_FLOW_SEG_HDR_IPV4, 16 * 8, ICE_FLOW_FLD_SZ_IPV4_ADDR * 8 }, + /* IPv6 */ + /* ICE_FLOW_FIELD_IDX_IPV6_SA */ + { ICE_FLOW_SEG_HDR_IPV6, 8 * 8, ICE_FLOW_FLD_SZ_IPV6_ADDR * 8 }, + /* ICE_FLOW_FIELD_IDX_IPV6_DA */ + { ICE_FLOW_SEG_HDR_IPV6, 24 * 8, ICE_FLOW_FLD_SZ_IPV6_ADDR * 8 }, + /* Transport */ + /* ICE_FLOW_FIELD_IDX_TCP_SRC_PORT */ + { ICE_FLOW_SEG_HDR_TCP, 0 * 8, ICE_FLOW_FLD_SZ_PORT * 8 }, + /* ICE_FLOW_FIELD_IDX_TCP_DST_PORT */ + { ICE_FLOW_SEG_HDR_TCP, 2 * 8, ICE_FLOW_FLD_SZ_PORT * 8 }, + /* ICE_FLOW_FIELD_IDX_UDP_SRC_PORT */ + { ICE_FLOW_SEG_HDR_UDP, 0 * 8, ICE_FLOW_FLD_SZ_PORT * 8 }, + /* ICE_FLOW_FIELD_IDX_UDP_DST_PORT */ + { ICE_FLOW_SEG_HDR_UDP, 2 * 8, ICE_FLOW_FLD_SZ_PORT * 8 }, + /* ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT */ + { ICE_FLOW_SEG_HDR_SCTP, 0 * 8, ICE_FLOW_FLD_SZ_PORT * 8 }, + /* ICE_FLOW_FIELD_IDX_SCTP_DST_PORT */ + { ICE_FLOW_SEG_HDR_SCTP, 2 * 8, ICE_FLOW_FLD_SZ_PORT * 8 }, + /* ICE_FLOW_FIELD_IDX_TCP_FLAGS */ + { ICE_FLOW_SEG_HDR_TCP, 13 * 8, ICE_FLOW_FLD_SZ_TCP_FLAGS * 8 }, + /* ARP */ + /* ICE_FLOW_FIELD_IDX_ARP_SIP */ + { ICE_FLOW_SEG_HDR_ARP, 14 * 8, ICE_FLOW_FLD_SZ_IPV4_ADDR * 8 }, + /* ICE_FLOW_FIELD_IDX_ARP_DIP */ + { ICE_FLOW_SEG_HDR_ARP, 24 * 8, ICE_FLOW_FLD_SZ_IPV4_ADDR * 8 }, + /* ICE_FLOW_FIELD_IDX_ARP_SHA */ + { ICE_FLOW_SEG_HDR_ARP, 8 * 8, ETH_ALEN * 8 }, + /* ICE_FLOW_FIELD_IDX_ARP_DHA */ + { ICE_FLOW_SEG_HDR_ARP, 18 * 8, ETH_ALEN * 8 }, + /* ICE_FLOW_FIELD_IDX_ARP_OP */ + { ICE_FLOW_SEG_HDR_ARP, 6 * 8, ICE_FLOW_FLD_SZ_ARP_OPER * 8 }, + /* ICMP */ + /* ICE_FLOW_FIELD_IDX_ICMP_TYPE */ + { ICE_FLOW_SEG_HDR_ICMP, 0 * 8, ICE_FLOW_FLD_SZ_ICMP_TYPE * 8 }, + /* ICE_FLOW_FIELD_IDX_ICMP_CODE */ + { ICE_FLOW_SEG_HDR_ICMP, 1 * 8, ICE_FLOW_FLD_SZ_ICMP_CODE * 8 }, + /* GRE */ + /* ICE_FLOW_FIELD_IDX_GRE_KEYID */ + { ICE_FLOW_SEG_HDR_GRE, 12 * 8, ICE_FLOW_FLD_SZ_GRE_KEYID * 8 }, +}; + +/* 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[] = { + 0xFDC00CC6, 0xBFBF7F7E, 0xF7EFDFDF, 0xFEFDFDFB, + 0x03BF7F7E, 0x00000000, 0x00000000, 0x00000000, + 0x000B0F0F, 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 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 */ +static const u32 ice_ptypes_ipv4_ofos[] = { + 0xFDC00000, 0xBFBF7F7E, 0x00EFDFDF, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x0003000F, 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 */ +static const u32 ice_ptypes_ipv4_il[] = { + 0xE0000000, 0xB807700E, 0x8001DC03, 0xE01DC03B, + 0x0007700E, 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 */ +static const u32 ice_ptypes_ipv6_ofos[] = { + 0x00000000, 0x00000000, 0xF7000000, 0xFEFDFDFB, + 0x03BF7F7E, 0x00000000, 0x00000000, 0x00000000, + 0x00080F00, 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 */ +static const u32 ice_ptypes_ipv6_il[] = { + 0x00000000, 0x03B80770, 0x00EE01DC, 0x0EE00000, + 0x03B80770, 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 Outermost/First UDP header */ +static const u32 ice_ptypes_udp_of[] = { + 0x81000000, 0x00000000, 0x04000000, 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 UDP header */ +static const u32 ice_ptypes_udp_il[] = { + 0x80000000, 0x20204040, 0x00081010, 0x80810102, + 0x00204040, 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 TCP header */ +static const u32 ice_ptypes_tcp_il[] = { + 0x04000000, 0x80810102, 0x10204040, 0x42040408, + 0x00810002, 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 SCTP header */ +static const u32 ice_ptypes_sctp_il[] = { + 0x08000000, 0x01020204, 0x20408081, 0x04080810, + 0x01020204, 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 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, 0x40810102, 0x08101020, + 0x02040408, 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 GRE header */ +static const u32 ice_ptypes_gre_of[] = { + 0x00000000, 0xBFBF7800, 0x00EFDFDF, 0xFEFDE000, + 0x03BF7F7E, 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 MAC header */ +static const u32 ice_ptypes_mac_il[] = { + 0x00000000, 0x00000000, 0x00EFDE00, 0x00000000, + 0x03BF7800, 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, +}; + +/* Manage parameters and info. used during the creation of a flow profile */ +struct ice_flow_prof_params { + enum ice_block blk; + struct ice_flow_prof *prof; + + u16 entry_length; /* # of bytes formatted entry will require */ + u8 es_cnt; + struct ice_fv_word es[ICE_MAX_FV_WORDS]; + + ice_declare_bitmap(ptypes, ICE_FLOW_PTYPE_MAX); +}; + +/** + * ice_is_pow2 - check if integer value is a power of 2 + * @val: unsigned integer to be validated + */ +static bool ice_is_pow2(u64 val) +{ + return (val && !(val & (val - 1))); +} + +#define ICE_FLOW_SEG_HDRS_L2_MASK \ + (ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN) +#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) + +/** + * 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 enum ice_status +ice_flow_val_hdrs(struct ice_flow_seg_info *segs, u8 segs_cnt) +{ + const u32 masks = (ICE_FLOW_SEG_HDRS_L2_MASK | + ICE_FLOW_SEG_HDRS_L3_MASK | + ICE_FLOW_SEG_HDRS_L4_MASK); + u8 i; + + for (i = 0; i < segs_cnt; i++) { + /* No header specified */ + if (!(segs[i].hdrs & masks) || (segs[i].hdrs & ~masks)) + return ICE_ERR_PARAM; + + /* Multiple L3 headers */ + if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK && + !ice_is_pow2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK)) + return ICE_ERR_PARAM; + + /* Multiple L4 headers */ + if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK && + !ice_is_pow2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK)) + return ICE_ERR_PARAM; + } + + return ICE_SUCCESS; +} + +/* 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) + /* A 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 enum ice_status +ice_flow_proc_seg_hdrs(struct ice_flow_prof_params *params) +{ + struct ice_flow_prof *prof; + u8 i; + + ice_memset(params->ptypes, 0xff, sizeof(params->ptypes), + ICE_NONDMA_MEM); + + prof = params->prof; + + for (i = 0; i < params->prof->segs_cnt; i++) { + const ice_bitmap_t *src; + u32 hdrs; + + if (i > 0 && (i + 1) < prof->segs_cnt) + continue; + + hdrs = prof->segs[i].hdrs; + + if (hdrs & ICE_FLOW_SEG_HDR_ETH) { + src = !i ? (const ice_bitmap_t *)ice_ptypes_mac_ofos : + (const ice_bitmap_t *)ice_ptypes_mac_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + hdrs &= ~ICE_FLOW_SEG_HDR_ETH; + } + + if (i && hdrs & ICE_FLOW_SEG_HDR_VLAN) { + src = (const ice_bitmap_t *)ice_ptypes_macvlan_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + hdrs &= ~ICE_FLOW_SEG_HDR_VLAN; + } + + if (!i && hdrs & ICE_FLOW_SEG_HDR_ARP) { + ice_and_bitmap(params->ptypes, params->ptypes, + (const ice_bitmap_t *)ice_ptypes_arp_of, + ICE_FLOW_PTYPE_MAX); + hdrs &= ~ICE_FLOW_SEG_HDR_ARP; + } + + if (hdrs & ICE_FLOW_SEG_HDR_IPV4) { + src = !i ? (const ice_bitmap_t *)ice_ptypes_ipv4_ofos : + (const ice_bitmap_t *)ice_ptypes_ipv4_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + hdrs &= ~ICE_FLOW_SEG_HDR_IPV4; + } else if (hdrs & ICE_FLOW_SEG_HDR_IPV6) { + src = !i ? (const ice_bitmap_t *)ice_ptypes_ipv6_ofos : + (const ice_bitmap_t *)ice_ptypes_ipv6_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + hdrs &= ~ICE_FLOW_SEG_HDR_IPV6; + } + + if (hdrs & ICE_FLOW_SEG_HDR_ICMP) { + src = !i ? (const ice_bitmap_t *)ice_ptypes_icmp_of : + (const ice_bitmap_t *)ice_ptypes_icmp_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + hdrs &= ~ICE_FLOW_SEG_HDR_ICMP; + } else if (hdrs & ICE_FLOW_SEG_HDR_UDP) { + src = !i ? (const ice_bitmap_t *)ice_ptypes_udp_of : + (const ice_bitmap_t *)ice_ptypes_udp_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + hdrs &= ~ICE_FLOW_SEG_HDR_UDP; + } else if (hdrs & ICE_FLOW_SEG_HDR_TCP) { + ice_and_bitmap(params->ptypes, params->ptypes, + (const ice_bitmap_t *)ice_ptypes_tcp_il, + ICE_FLOW_PTYPE_MAX); + hdrs &= ~ICE_FLOW_SEG_HDR_TCP; + } else if (hdrs & ICE_FLOW_SEG_HDR_SCTP) { + src = (const ice_bitmap_t *)ice_ptypes_sctp_il; + ice_and_bitmap(params->ptypes, params->ptypes, src, + ICE_FLOW_PTYPE_MAX); + hdrs &= ~ICE_FLOW_SEG_HDR_SCTP; + } else if (hdrs & ICE_FLOW_SEG_HDR_GRE) { + if (!i) { + src = (const ice_bitmap_t *)ice_ptypes_gre_of; + ice_and_bitmap(params->ptypes, params->ptypes, + src, ICE_FLOW_PTYPE_MAX); + } + hdrs &= ~ICE_FLOW_SEG_HDR_GRE; + } + } + + return ICE_SUCCESS; +} + +/** + * 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 + * + * 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 enum ice_status +ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params, + u8 seg, enum ice_flow_field fld) +{ + 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; + s16 adj = 0; + u8 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_IP_DSCP: + if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV6) + adj = ICE_FLOW_FLD_IPV6_TTL_DSCP_DISP; + /* Fall through */ + case ICE_FLOW_FIELD_IDX_IP_TTL: + case ICE_FLOW_FIELD_IDX_IP_PROT: + /* Some fields are located at different offsets in IPv4 and + * IPv6 + */ + if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4) { + 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 term + * sharing the same extraction sequence entry. + */ + if (fld == ICE_FLOW_FIELD_IDX_IP_TTL) + sib = ICE_FLOW_FIELD_IDX_IP_PROT; + else if (fld == ICE_FLOW_FIELD_IDX_IP_PROT) + sib = ICE_FLOW_FIELD_IDX_IP_TTL; + } else if (params->prof->segs[seg].hdrs & + ICE_FLOW_SEG_HDR_IPV6) { + prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : + ICE_PROT_IPV6_IL; + if (fld == ICE_FLOW_FIELD_IDX_IP_TTL) + adj = ICE_FLOW_FLD_IPV6_TTL_TTL_DISP; + else if (fld == ICE_FLOW_FIELD_IDX_IP_PROT) + adj = ICE_FLOW_FLD_IPV6_TTL_PROT_DISP; + } + 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 = seg == 0 ? ICE_PROT_UDP_IL_OR_S : ICE_PROT_UDP_OF; + 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_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 ICE_ERR_NOT_IMPL; + } + + /* 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 * 8; + + 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 + adj) % ese_bits); + flds[fld].xtrct.idx = params->es_cnt; + + /* Adjust the next field-entry index after accommodating the number of + * entries this field consumes + */ + cnt = DIVIDE_AND_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; + 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 ICE_ERR_MAX_LIMIT; + + /* 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->es_cnt++; + } + + off += ICE_FLOW_FV_EXTRACT_SZ; + } + + return ICE_SUCCESS; +} + +/** + * 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 be extracted + */ +static enum ice_status +ice_flow_xtract_raws(struct ice_hw *hw, struct ice_flow_prof_params *params, + u8 seg) +{ + u16 hdrs_sz; + u8 i; + + if (!params->prof->segs[seg].raws_cnt) + return ICE_SUCCESS; + + if (params->prof->segs[seg].raws_cnt > + ARRAY_SIZE(params->prof->segs[seg].raws)) + return ICE_ERR_MAX_LIMIT; + + /* Offsets within the segment headers are not supported */ + hdrs_sz = ice_flow_calc_seg_sz(params, seg); + if (!hdrs_sz) + return ICE_ERR_PARAM; + + 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]; + + /* Only support matching raw fields in the payload */ + if (raw->off < hdrs_sz) + return ICE_ERR_PARAM; + + /* Convert the segment-relative offset into payload-relative + * offset. + */ + off = raw->off - hdrs_sz; + + /* Storing extraction information */ + raw->info.xtrct.prot_id = ICE_PROT_PAY; + raw->info.xtrct.off = (off / ICE_FLOW_FV_EXTRACT_SZ) * + ICE_FLOW_FV_EXTRACT_SZ; + raw->info.xtrct.disp = (off % ICE_FLOW_FV_EXTRACT_SZ) * 8; + raw->info.xtrct.idx = params->es_cnt; + + /* Determine the number of field vector entries this raw field + * consumes. + */ + cnt = DIVIDE_AND_ROUND_UP(raw->info.xtrct.disp + + (raw->info.src.last * 8), + ICE_FLOW_FV_EXTRACT_SZ * 8); + off = raw->info.xtrct.off; + for (j = 0; j < cnt; j++) { + /* 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 ICE_ERR_MAX_LIMIT; + + params->es[params->es_cnt].prot_id = ICE_PROT_PAY; + params->es[params->es_cnt].off = off; + params->es_cnt++; + off += ICE_FLOW_FV_EXTRACT_SZ; + } + } + + return ICE_SUCCESS; +} + +/** + * 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 enum ice_status +ice_flow_create_xtrct_seq(struct ice_hw *hw, + struct ice_flow_prof_params *params) +{ + enum ice_status status = ICE_SUCCESS; + u8 i; + + for (i = 0; i < params->prof->segs_cnt; i++) { + u64 match = params->prof->segs[i].match; + u16 j; + + for (j = 0; j < ICE_FLOW_FIELD_IDX_MAX && match; j++) { + const u64 bit = BIT_ULL(j); + + if (match & bit) { + status = ice_flow_xtract_fld + (hw, params, i, (enum ice_flow_field)j); + if (status) + return status; + match &= ~bit; + } + } + + /* 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 enum ice_status +ice_flow_proc_segs(struct ice_hw *hw, struct ice_flow_prof_params *params) +{ + enum ice_status 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_RSS: + /* Only header information is provided for RSS configuration. + * No further processing is needed. + */ + status = ICE_SUCCESS; + break; + case ICE_BLK_FD: + status = ICE_SUCCESS; + break; + case ICE_BLK_SW: + default: + return ICE_ERR_NOT_IMPL; + } + + return status; +} + +#define ICE_FLOW_FIND_PROF_CHK_FLDS 0x00000001 +#define ICE_FLOW_FIND_PROF_CHK_VSI 0x00000002 + +/** + * 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 + * @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, u16 vsi_handle, u32 conds) +{ + struct ice_flow_prof *p; + + LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) { + if (p->dir == 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) && + !ice_is_bit_set(p->vsis, vsi_handle)) + 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) + return p; + } + } + + return NULL; +} + +/** + * ice_flow_find_prof - Look up a profile matching headers 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 + */ +u64 +ice_flow_find_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, + struct ice_flow_seg_info *segs, u8 segs_cnt) +{ + struct ice_flow_prof *p; + + ice_acquire_lock(&hw->fl_profs_locks[blk]); + p = ice_flow_find_prof_conds(hw, blk, dir, segs, segs_cnt, + ICE_MAX_VSI, ICE_FLOW_FIND_PROF_CHK_FLDS); + ice_release_lock(&hw->fl_profs_locks[blk]); + + return p ? p->id : ICE_FLOW_PROF_ID_INVAL; +} + +/** + * 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], ice_flow_prof, 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 + * @entry: flow entry to be removed + */ +static enum ice_status +ice_flow_rem_entry_sync(struct ice_hw *hw, struct ice_flow_entry *entry) +{ + if (!entry) + return ICE_ERR_BAD_PTR; + + LIST_DEL(&entry->l_entry); + + if (entry->entry) + ice_free(hw, entry->entry); + + if (entry->acts) + ice_free(hw, entry->acts); + + ice_free(hw, entry); + + return ICE_SUCCESS; +} + +/** + * 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 + * @prof_id: unique ID to identify this flow profile + * @segs: array of one or more packet segments that describe the flow + * @segs_cnt: number of packet segments provided + * @acts: array of default actions + * @acts_cnt: number of default actions + * @prof: stores the returned flow profile added + * + * Assumption: the caller has acquired the lock to the profile list + */ +static enum ice_status +ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk, + enum ice_flow_dir dir, u64 prof_id, + struct ice_flow_seg_info *segs, u8 segs_cnt, + struct ice_flow_action *acts, u8 acts_cnt, + struct ice_flow_prof **prof) +{ + struct ice_flow_prof_params params; + enum ice_status status = ICE_SUCCESS; + u8 i; + + if (!prof || (acts_cnt && !acts)) + return ICE_ERR_BAD_PTR; + + ice_memset(¶ms, 0, sizeof(params), ICE_NONDMA_MEM); + params.prof = (struct ice_flow_prof *) + ice_malloc(hw, sizeof(*params.prof)); + if (!params.prof) + return ICE_ERR_NO_MEMORY; + + /* initialize extraction sequence to all invalid (0xff) */ + ice_memset(params.es, 0xff, sizeof(params.es), ICE_NONDMA_MEM); + + params.blk = blk; + params.prof->id = prof_id; + params.prof->dir = dir; + params.prof->segs_cnt = segs_cnt; + + /* Make a copy of the segments that need to be persistent in the flow + * profile instance + */ + for (i = 0; i < segs_cnt; i++) + ice_memcpy(¶ms.prof->segs[i], &segs[i], sizeof(*segs), + ICE_NONDMA_TO_NONDMA); + + /* Make a copy of the actions that need to be persistent in the flow + * profile instance. + */ + if (acts_cnt) { + params.prof->acts = (struct ice_flow_action *) + ice_memdup(hw, acts, acts_cnt * sizeof(*acts), + ICE_NONDMA_TO_NONDMA); + + if (!params.prof->acts) { + status = ICE_ERR_NO_MEMORY; + goto out; + } + } + + status = ice_flow_proc_segs(hw, ¶ms); + 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, (u8 *)params.ptypes, params.es); + if (status) { + ice_debug(hw, ICE_DBG_FLOW, "Error adding a HW flow profile\n"); + goto out; + } + + INIT_LIST_HEAD(¶ms.prof->entries); + ice_init_lock(¶ms.prof->entries_lock); + *prof = params.prof; + +out: + if (status) { + if (params.prof->acts) + ice_free(hw, params.prof->acts); + ice_free(hw, params.prof); + } + + 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 enum ice_status +ice_flow_rem_prof_sync(struct ice_hw *hw, enum ice_block blk, + struct ice_flow_prof *prof) +{ + enum ice_status status = ICE_SUCCESS; + + /* Remove all remaining flow entries before removing the flow profile */ + if (!LIST_EMPTY(&prof->entries)) { + struct ice_flow_entry *e, *t; + + ice_acquire_lock(&prof->entries_lock); + + LIST_FOR_EACH_ENTRY_SAFE(e, t, &prof->entries, ice_flow_entry, + l_entry) { + status = ice_flow_rem_entry_sync(hw, e); + if (status) + break; + } + + ice_release_lock(&prof->entries_lock); + } + + /* Remove all hardware profiles associated with this flow profile */ + status = ice_rem_prof(hw, blk, prof->id); + if (!status) { + LIST_DEL(&prof->l_entry); + ice_destroy_lock(&prof->entries_lock); + if (prof->acts) + ice_free(hw, prof->acts); + ice_free(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 enum ice_status +ice_flow_assoc_prof(struct ice_hw *hw, enum ice_block blk, + struct ice_flow_prof *prof, u16 vsi_handle) +{ + enum ice_status status = ICE_SUCCESS; + + if (!ice_is_bit_set(prof->vsis, vsi_handle)) { + status = ice_add_prof_id_flow(hw, blk, + ice_get_hw_vsi_num(hw, + vsi_handle), + prof->id); + if (!status) + ice_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 enum ice_status +ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk, + struct ice_flow_prof *prof, u16 vsi_handle) +{ + enum ice_status status = ICE_SUCCESS; + + if (ice_is_bit_set(prof->vsis, vsi_handle)) { + status = ice_rem_prof_id_flow(hw, blk, + ice_get_hw_vsi_num(hw, + vsi_handle), + prof->id); + if (!status) + ice_clear_bit(vsi_handle, prof->vsis); + else + ice_debug(hw, ICE_DBG_FLOW, + "HW profile remove failed, %d\n", + status); + } + + 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 + * @prof_id: unique ID to identify this flow profile + * @segs: array of one or more packet segments that describe the flow + * @segs_cnt: number of packet segments provided + * @acts: array of default actions + * @acts_cnt: number of default actions + * @prof: stores the returned flow profile added + */ +enum ice_status +ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, + u64 prof_id, struct ice_flow_seg_info *segs, u8 segs_cnt, + struct ice_flow_action *acts, u8 acts_cnt, + struct ice_flow_prof **prof) +{ + enum ice_status status; + + if (segs_cnt > ICE_FLOW_SEG_MAX) + return ICE_ERR_MAX_LIMIT; + + if (!segs_cnt) + return ICE_ERR_PARAM; + + if (!segs) + return ICE_ERR_BAD_PTR; + + status = ice_flow_val_hdrs(segs, segs_cnt); + if (status) + return status; + + ice_acquire_lock(&hw->fl_profs_locks[blk]); + + status = ice_flow_add_prof_sync(hw, blk, dir, prof_id, segs, segs_cnt, + acts, acts_cnt, prof); + if (!status) + LIST_ADD(&(*prof)->l_entry, &hw->fl_profs[blk]); + + ice_release_lock(&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 + */ +enum ice_status +ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id) +{ + struct ice_flow_prof *prof; + enum ice_status status; + + ice_acquire_lock(&hw->fl_profs_locks[blk]); + + prof = ice_flow_find_prof_id(hw, blk, prof_id); + if (!prof) { + status = ICE_ERR_DOES_NOT_EXIST; + goto out; + } + + /* prof becomes invalid after the call */ + status = ice_flow_rem_prof_sync(hw, blk, prof); + +out: + ice_release_lock(&hw->fl_profs_locks[blk]); + + return status; +} + +/** + * ice_flow_get_hw_prof - return the hw profile for a specific profile id handle + * @hw: pointer to the hw struct + * @blk: classification stage + * @prof_id: the profile id handle + * @hw_prof_id: pointer to variable to receive the hw profile id + */ +enum ice_status +ice_flow_get_hw_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id, + u8 *hw_prof_id) +{ + struct ice_prof_map *map; + + map = ice_search_prof_id(hw, blk, prof_id); + if (map) { + *hw_prof_id = map->prof_id; + return ICE_SUCCESS; + } + + return ICE_ERR_DOES_NOT_EXIST; +} + +/** + * ice_flow_find_entry - look for a flow entry using its unique ID + * @hw: pointer to the hw struct + * @blk: classification stage + * @entry_id: unique ID to identify this flow entry + * + * This function looks for the flow entry with the specified unique ID in all + * flow profiles of the specified classification stage. If the entry is found, + * and it returns the handle to the flow entry. Otherwise, it returns + * ICE_FLOW_ENTRY_ID_INVAL. + */ +u64 ice_flow_find_entry(struct ice_hw *hw, enum ice_block blk, u64 entry_id) +{ + struct ice_flow_entry *found = NULL; + struct ice_flow_prof *p; + + ice_acquire_lock(&hw->fl_profs_locks[blk]); + + LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) { + struct ice_flow_entry *e; + + ice_acquire_lock(&p->entries_lock); + LIST_FOR_EACH_ENTRY(e, &p->entries, ice_flow_entry, l_entry) + if (e->id == entry_id) { + found = e; + break; + } + ice_release_lock(&p->entries_lock); + + if (found) + break; + } + + ice_release_lock(&hw->fl_profs_locks[blk]); + + return found ? ICE_FLOW_ENTRY_HNDL(found) : ICE_FLOW_ENTRY_HANDLE_INVAL; +} + +/** + * 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 + * @acts: arrays of actions to be performed on a match + * @acts_cnt: number of actions + * @entry_h: pointer to buffer that receives the new flow entry's handle + */ +enum ice_status +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, struct ice_flow_action *acts, u8 acts_cnt, + u64 *entry_h) +{ + struct ice_flow_prof *prof = NULL; + struct ice_flow_entry *e = NULL; + enum ice_status status = ICE_SUCCESS; + + if (acts_cnt && !acts) + return ICE_ERR_PARAM; + + /* No flow entry data is expected for RSS */ + if (!entry_h || (!data && blk != ICE_BLK_RSS)) + return ICE_ERR_BAD_PTR; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return ICE_ERR_PARAM; + + ice_acquire_lock(&hw->fl_profs_locks[blk]); + + prof = ice_flow_find_prof_id(hw, blk, prof_id); + if (!prof) { + status = ICE_ERR_DOES_NOT_EXIST; + } else { + /* Allocate memory for the entry being added and associate + * the VSI to the found flow profile + */ + e = (struct ice_flow_entry *)ice_malloc(hw, sizeof(*e)); + if (!e) + status = ICE_ERR_NO_MEMORY; + else + status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle); + } + + ice_release_lock(&hw->fl_profs_locks[blk]); + if (status) + goto out; + + e->id = entry_id; + e->vsi_handle = vsi_handle; + e->prof = prof; + + switch (blk) { + case ICE_BLK_RSS: + /* RSS will add only one entry per VSI per profile */ + break; + case ICE_BLK_FD: + break; + case ICE_BLK_SW: + case ICE_BLK_PE: + default: + status = ICE_ERR_NOT_IMPL; + goto out; + } + + ice_acquire_lock(&prof->entries_lock); + LIST_ADD(&e->l_entry, &prof->entries); + ice_release_lock(&prof->entries_lock); + + *entry_h = ICE_FLOW_ENTRY_HNDL(e); + +out: + if (status && e) { + if (e->entry) + ice_free(hw, e->entry); + ice_free(hw, e); + } + + return status; +} + +/** + * ice_flow_rem_entry - Remove a flow entry + * @hw: pointer to the hw struct + * @entry_h: handle to the flow entry to be removed + */ +enum ice_status ice_flow_rem_entry(struct ice_hw *hw, u64 entry_h) +{ + struct ice_flow_entry *entry; + struct ice_flow_prof *prof; + enum ice_status status; + + if (entry_h == ICE_FLOW_ENTRY_HANDLE_INVAL) + return ICE_ERR_PARAM; + + entry = ICE_FLOW_ENTRY_PTR((unsigned long)entry_h); + + /* Retain the pointer to the flow profile as the entry will be freed */ + prof = entry->prof; + + ice_acquire_lock(&prof->entries_lock); + status = ice_flow_rem_entry_sync(hw, entry); + ice_release_lock(&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 + * @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 + * 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 type, u16 val_loc, + u16 mask_loc, u16 last_loc) +{ + u64 bit = BIT_ULL(fld); + + seg->match |= bit; + if (type == ICE_FLOW_FLD_TYPE_RANGE) + seg->range |= bit; + + seg->fields[fld].type = 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_set_fld_prefix - sets locations of prefix field from entry's buf + * @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 + * @pref_loc: location of prefix value from entry's input buffer + * @pref_sz: size of the location holding the prefix value + * + * 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 + * and the IPv4 prefix value can 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_set_fld_prefix(struct ice_flow_seg_info *seg, enum ice_flow_field fld, + u16 val_loc, u16 pref_loc, u8 pref_sz) +{ + /* For this type of field, the "mask" location is for the prefix value's + * location and the "last" location is for the size of the location of + * the prefix value. + */ + ice_flow_set_fld_ext(seg, fld, ICE_FLOW_FLD_TYPE_PREFIX, val_loc, + pref_loc, (u16)pref_sz); +} + +/** + * 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++; +} + +#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_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) + * @hash_fields: fields to be hashed on for the segment(s) + * @flow_hdr: protocol header fields within a packet segment + * + * 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 enum ice_status +ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u64 hash_fields, + u32 flow_hdr) +{ + u64 val = hash_fields; + u8 i; + + for (i = 0; val && i < ICE_FLOW_FIELD_IDX_MAX; i++) { + u64 bit = BIT_ULL(i); + + if (val & bit) { + ice_flow_set_fld(segs, (enum ice_flow_field)i, + ICE_FLOW_FLD_OFF_INVAL, + ICE_FLOW_FLD_OFF_INVAL, + ICE_FLOW_FLD_OFF_INVAL, false); + val &= ~bit; + } + } + ICE_FLOW_SET_HDRS(segs, flow_hdr); + + if (segs->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS) + return ICE_ERR_PARAM; + + val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS); + if (!ice_is_pow2(val)) + return ICE_ERR_CFG; + + val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS); + if (val && !ice_is_pow2(val)) + return ICE_ERR_CFG; + + return ICE_SUCCESS; +} + +/* 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(ICE_AVF_FLOW_FIELD_IPV4_OTHER) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV4)) +#define ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS \ + (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP)) +#define ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS \ + (BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_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(ICE_AVF_FLOW_FIELD_IPV4_SCTP)) + +#define ICE_FLOW_AVF_RSS_IPV6_MASKS \ + (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_OTHER) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV6)) +#define ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS \ + (BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_UDP)) +#define ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS \ + (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_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(ICE_AVF_FLOW_FIELD_IPV6_SCTP)) + +#define ICE_FLOW_MAX_CFG 10 + +/** + * ice_add_avf_rss_cfg - add an RSS configuration for AVF driver + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @avf_hash: hash bit fields (ICE_AVF_FLOW_FIELD_*) 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. + */ +enum ice_status +ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 avf_hash) +{ + u64 added_cfg[ICE_FLOW_MAX_CFG], hash_flds; + enum ice_status status = ICE_SUCCESS; + u8 i, idx = 0; + + if (avf_hash == ICE_AVF_FLOW_FIELD_INVALID || + !ice_is_vsi_valid(hw, vsi_handle)) + return ICE_ERR_PARAM; + + /* 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 ICE_ERR_CFG; + + 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_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(ICE_AVF_FLOW_FIELD_IPV4_SCTP)) { + rss_hash = ICE_FLOW_HASH_IPV4 | + ICE_FLOW_HASH_SCTP_PORT; + hash_flds &= + ~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP); + } else 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_ALL_IPV6_MASKS) { + 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(ICE_AVF_FLOW_FIELD_IPV6_SCTP)) { + rss_hash = ICE_FLOW_HASH_IPV6 | + ICE_FLOW_HASH_SCTP_PORT; + hash_flds &= + ~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP); + } else if (hash_flds & ICE_FLOW_AVF_RSS_IPV6_MASKS) { + rss_hash = ICE_FLOW_HASH_IPV6; + hash_flds &= ~ICE_FLOW_AVF_RSS_IPV6_MASKS; + } + } + + if (rss_hash == ICE_HASH_INVALID) + return ICE_ERR_OUT_OF_RANGE; + + status = ice_add_rss_cfg(hw, vsi_handle, rss_hash, + ICE_FLOW_SEG_HDR_NONE); + if (status) + break; + added_cfg[idx++] = rss_hash; + } + + /* If status is not success, we must remove all hash configurations + * that were successfully added previously in this call for the vsi + */ + if (status) + for (i = 0; i < idx; i++) + ice_rem_rss_cfg(hw, vsi_handle, added_cfg[i], + ICE_FLOW_SEG_HDR_NONE); + + return status; +} + +/** + * ice_rem_all_rss_vsi_ctx - remove all RSS configurations from VSI context + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * + */ +void ice_rem_all_rss_vsi_ctx(struct ice_hw *hw, u16 vsi_handle) +{ + struct ice_rss_cfg *r, *tmp; + + if (!ice_is_vsi_valid(hw, vsi_handle) || + LIST_EMPTY(&hw->vsi_ctx[vsi_handle]->rss_list_head)) + return; + + ice_acquire_lock(&hw->vsi_ctx[vsi_handle]->rss_locks); + LIST_FOR_EACH_ENTRY_SAFE(r, tmp, + &hw->vsi_ctx[vsi_handle]->rss_list_head, + ice_rss_cfg, l_entry) { + LIST_DEL(&r->l_entry); + ice_free(hw, r); + } + ice_release_lock(&hw->vsi_ctx[vsi_handle]->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. + */ +enum ice_status 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; + enum ice_status status = ICE_SUCCESS; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return ICE_ERR_PARAM; + + ice_acquire_lock(&hw->fl_profs_locks[blk]); + LIST_FOR_EACH_ENTRY_SAFE(p, t, &hw->fl_profs[blk], ice_flow_prof, + l_entry) { + if (ice_is_bit_set(p->vsis, vsi_handle)) { + status = ice_flow_disassoc_prof(hw, blk, p, vsi_handle); + if (status) + break; + + if (!ice_is_any_bit_set(p->vsis, ICE_MAX_VSI)) { + status = ice_flow_rem_prof_sync(hw, blk, p); + if (status) + break; + } + } + } + ice_release_lock(&hw->fl_profs_locks[blk]); + + return status; +} + +/** + * ice_rem_rss_cfg_vsi_ctx - remove RSS configuration from VSI context + * @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_cfg_vsi_ctx(struct ice_hw *hw, u16 vsi_handle, + struct ice_flow_prof *prof) +{ + 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. + */ + LIST_FOR_EACH_ENTRY_SAFE(r, tmp, + &hw->vsi_ctx[vsi_handle]->rss_list_head, + ice_rss_cfg, l_entry) { + if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match && + r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) { + LIST_DEL(&r->l_entry); + ice_free(hw, r); + return; + } + } +} + +/** + * ice_add_rss_vsi_ctx - add RSS configuration to VSI context + * @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 enum ice_status +ice_add_rss_vsi_ctx(struct ice_hw *hw, u16 vsi_handle, + struct ice_flow_prof *prof) +{ + struct ice_rss_cfg *r, *rss_cfg; + + LIST_FOR_EACH_ENTRY(r, &hw->vsi_ctx[vsi_handle]->rss_list_head, + ice_rss_cfg, l_entry) + if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match && + r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) + return ICE_SUCCESS; + + rss_cfg = (struct ice_rss_cfg *)ice_malloc(hw, sizeof(*rss_cfg)); + if (!rss_cfg) + return ICE_ERR_NO_MEMORY; + + rss_cfg->hashed_flds = prof->segs[prof->segs_cnt - 1].match; + rss_cfg->packet_hdr = prof->segs[prof->segs_cnt - 1].hdrs; + LIST_ADD(&rss_cfg->l_entry, &hw->vsi_ctx[vsi_handle]->rss_list_head); + + return ICE_SUCCESS; +} + +#define ICE_FLOW_PROF_HASH_S 0 +#define ICE_FLOW_PROF_HASH_M (0xFFFFFFFFULL << ICE_FLOW_PROF_HASH_S) +#define ICE_FLOW_PROF_HDR_S 32 +#define ICE_FLOW_PROF_HDR_M (0xFFFFFFFFULL << ICE_FLOW_PROF_HDR_S) + +#define ICE_FLOW_GEN_PROFID(hash, hdr) \ + (u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \ + (((u64)(hdr) << ICE_FLOW_PROF_HDR_S) & ICE_FLOW_PROF_HDR_M)) + +/** + * ice_add_rss_cfg_sync - add an RSS configuration + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure + * @addl_hdrs: protocol header fields + * + * Assumption: lock has already been acquired for RSS list + */ +static enum ice_status +ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, + u32 addl_hdrs) +{ + const enum ice_block blk = ICE_BLK_RSS; + struct ice_flow_prof *prof = NULL; + struct ice_flow_seg_info *segs; + enum ice_status status = ICE_SUCCESS; + + segs = (struct ice_flow_seg_info *)ice_malloc(hw, sizeof(*segs)); + if (!segs) + return ICE_ERR_NO_MEMORY; + + /* Construct the packet segment info from the hashed fields */ + status = ice_flow_set_rss_seg_info(segs, hashed_flds, addl_hdrs); + if (status) + goto exit; + + /* Search for a flow profile that has matching headers, hash fields + * 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, 1, + vsi_handle, + ICE_FLOW_FIND_PROF_CHK_FLDS | + 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 disasscociate 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, 1, + 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_cfg_vsi_ctx(hw, vsi_handle, prof); + else + goto exit; + + /* Remove profile if it has no vsis associated */ + if (!ice_is_any_bit_set(prof->vsis, ICE_MAX_VSI)) { + status = ice_flow_rem_prof_sync(hw, blk, prof); + if (status) + goto exit; + } + } + + /* Search for a profile that has same match fields only. If this + * exists then associate the vsi to this profile. + */ + prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, 1, + vsi_handle, + ICE_FLOW_FIND_PROF_CHK_FLDS); + if (prof) { + status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle); + if (!status) + status = ice_add_rss_vsi_ctx(hw, vsi_handle, prof); + goto exit; + } + + /* Create a new flow profile with generated profile and packet + * segment information. + */ + status = ice_flow_add_prof(hw, blk, ICE_FLOW_RX, + ICE_FLOW_GEN_PROFID(hashed_flds, segs->hdrs), + segs, 1, NULL, 0, &prof); + if (status) + goto exit; + + 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_sync(hw, blk, prof); + goto exit; + } + + status = ice_add_rss_vsi_ctx(hw, vsi_handle, prof); + +exit: + ice_free(hw, segs); + return status; +} + +/** + * ice_add_rss_cfg - add an RSS configuration with specified hashed fields + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure + * @addl_hdrs: protocol header fields + * + * 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. + */ +enum ice_status +ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, + u32 addl_hdrs) +{ + enum ice_status status; + + if (hashed_flds == ICE_HASH_INVALID || + !ice_is_vsi_valid(hw, vsi_handle)) + return ICE_ERR_PARAM; + + ice_acquire_lock(&hw->vsi_ctx[vsi_handle]->rss_locks); + status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs); + ice_release_lock(&hw->vsi_ctx[vsi_handle]->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 + * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove + * @addl_hdrs: Protocol header fields within a packet segment + * + * Assumption: lock has already been acquired for RSS list + */ +static enum ice_status +ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, + u32 addl_hdrs) +{ + const enum ice_block blk = ICE_BLK_RSS; + struct ice_flow_seg_info *segs; + struct ice_flow_prof *prof; + enum ice_status status; + + segs = (struct ice_flow_seg_info *)ice_malloc(hw, sizeof(*segs)); + if (!segs) + return ICE_ERR_NO_MEMORY; + + /* Construct the packet segment info from the hashed fields */ + status = ice_flow_set_rss_seg_info(segs, hashed_flds, addl_hdrs); + if (status) + goto out; + + prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, 1, + vsi_handle, + ICE_FLOW_FIND_PROF_CHK_FLDS); + if (!prof) { + status = ICE_ERR_DOES_NOT_EXIST; + goto out; + } + + status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle); + if (status) + goto out; + + if (!ice_is_any_bit_set(prof->vsis, ICE_MAX_VSI)) + status = ice_flow_rem_prof_sync(hw, blk, prof); + + ice_rem_rss_cfg_vsi_ctx(hw, vsi_handle, prof); + +out: + ice_free(hw, 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 + * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove + * @addl_hdrs: Protocol header fields within a packet segment + * + * 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. + */ +enum ice_status +ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, + u32 addl_hdrs) +{ + enum ice_status status; + + if (hashed_flds == ICE_HASH_INVALID || + !ice_is_vsi_valid(hw, vsi_handle)) + return ICE_ERR_PARAM; + + ice_acquire_lock(&hw->vsi_ctx[vsi_handle]->rss_locks); + status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs); + ice_release_lock(&hw->vsi_ctx[vsi_handle]->rss_locks); + + return status; +} + +/** + * ice_replay_rss_cfg - remove RSS configurations associated with vsi + * @hw: pointer to the hardware structure + * @vsi_handle: software VSI handle + */ +enum ice_status ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle) +{ + enum ice_status status = ICE_SUCCESS; + struct ice_rss_cfg *r; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return ICE_ERR_PARAM; + + ice_acquire_lock(&hw->vsi_ctx[vsi_handle]->rss_locks); + LIST_FOR_EACH_ENTRY(r, &hw->vsi_ctx[vsi_handle]->rss_list_head, + ice_rss_cfg, l_entry) { + status = ice_add_rss_cfg_sync(hw, vsi_handle, r->hashed_flds, + r->packet_hdr); + if (status) + break; + } + ice_release_lock(&hw->vsi_ctx[vsi_handle]->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 + * + * 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) +{ + struct ice_rss_cfg *r, *rss_cfg = NULL; + + /* 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; + + ice_acquire_lock(&hw->vsi_ctx[vsi_handle]->rss_locks); + LIST_FOR_EACH_ENTRY(r, &hw->vsi_ctx[vsi_handle]->rss_list_head, + ice_rss_cfg, l_entry) + if (r->packet_hdr == hdrs) { + rss_cfg = r; + break; + } + ice_release_lock(&hw->vsi_ctx[vsi_handle]->rss_locks); + + return rss_cfg ? rss_cfg->hashed_flds : ICE_HASH_INVALID; +} diff --git a/drivers/net/ice/base/ice_flow.h b/drivers/net/ice/base/ice_flow.h index 228a2c089c..51d7c3ac99 100644 --- a/drivers/net/ice/base/ice_flow.h +++ b/drivers/net/ice/base/ice_flow.h @@ -5,4 +5,341 @@ #ifndef _ICE_FLOW_H_ #define _ICE_FLOW_H_ +#include "ice_flex_type.h" +#define ICE_IPV4_MAKE_PREFIX_MASK(prefix) ((u32)(~0) << (32 - (prefix))) +#define ICE_FLOW_PROF_ID_INVAL 0xfffffffffffffffful +#define ICE_FLOW_PROF_ID_BYPASS 0 +#define ICE_FLOW_PROF_ID_DEFAULT 1 +#define ICE_FLOW_ENTRY_HANDLE_INVAL 0 +#define ICE_FLOW_VSI_INVAL 0xffff +#define ICE_FLOW_FLD_OFF_INVAL 0xffff + +/* Use any of the type from flow field to generate a equivalent hash field */ +#define ICE_FLOW_HASH_FLD(t) (1ULL << (t)) + +#define ICE_FLOW_HASH_IPV4 \ + (ICE_FLOW_HASH_FLD(ICE_FLOW_FIELD_IDX_IPV4_SA) | \ + ICE_FLOW_HASH_FLD(ICE_FLOW_FIELD_IDX_IPV4_DA)) +#define ICE_FLOW_HASH_IPV6 \ + (ICE_FLOW_HASH_FLD(ICE_FLOW_FIELD_IDX_IPV6_SA) | \ + ICE_FLOW_HASH_FLD(ICE_FLOW_FIELD_IDX_IPV6_DA)) +#define ICE_FLOW_HASH_TCP_PORT \ + (ICE_FLOW_HASH_FLD(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT) | \ + ICE_FLOW_HASH_FLD(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)) +#define ICE_FLOW_HASH_UDP_PORT \ + (ICE_FLOW_HASH_FLD(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT) | \ + ICE_FLOW_HASH_FLD(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)) +#define ICE_FLOW_HASH_SCTP_PORT \ + (ICE_FLOW_HASH_FLD(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT) | \ + ICE_FLOW_HASH_FLD(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)) + +#define ICE_HASH_INVALID 0 +#define ICE_HASH_TCP_IPV4 (ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_TCP_PORT) +#define ICE_HASH_TCP_IPV6 (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_TCP_PORT) +#define ICE_HASH_UDP_IPV4 (ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_UDP_PORT) +#define ICE_HASH_UDP_IPV6 (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_UDP_PORT) +#define ICE_HASH_SCTP_IPV4 (ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_SCTP_PORT) +#define ICE_HASH_SCTP_IPV6 (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_SCTP_PORT) + +/* Protocol header fields within a packet segment. A segment consists of one or + * more protocol headers that make up a logical group of protocol headers. Each + * logical group of protocol headers encapsulates or is encapsulated using/by + * tunneling or encapsulation protocols for network virtualization such as GRE, + * VxLAN, etc. + */ +enum ice_flow_seg_hdr { + ICE_FLOW_SEG_HDR_NONE = 0x00000000, + ICE_FLOW_SEG_HDR_ETH = 0x00000001, + ICE_FLOW_SEG_HDR_VLAN = 0x00000002, + ICE_FLOW_SEG_HDR_IPV4 = 0x00000004, + ICE_FLOW_SEG_HDR_IPV6 = 0x00000008, + ICE_FLOW_SEG_HDR_ARP = 0x00000010, + ICE_FLOW_SEG_HDR_ICMP = 0x00000020, + ICE_FLOW_SEG_HDR_TCP = 0x00000040, + ICE_FLOW_SEG_HDR_UDP = 0x00000080, + ICE_FLOW_SEG_HDR_SCTP = 0x00000100, + ICE_FLOW_SEG_HDR_GRE = 0x00000200, +}; + +enum ice_flow_field { + /* L2 */ + ICE_FLOW_FIELD_IDX_ETH_DA, + ICE_FLOW_FIELD_IDX_ETH_SA, + ICE_FLOW_FIELD_IDX_S_VLAN, + ICE_FLOW_FIELD_IDX_C_VLAN, + ICE_FLOW_FIELD_IDX_ETH_TYPE, + /* L3 */ + ICE_FLOW_FIELD_IDX_IP_DSCP, + ICE_FLOW_FIELD_IDX_IP_TTL, + ICE_FLOW_FIELD_IDX_IP_PROT, + ICE_FLOW_FIELD_IDX_IPV4_SA, + ICE_FLOW_FIELD_IDX_IPV4_DA, + ICE_FLOW_FIELD_IDX_IPV6_SA, + ICE_FLOW_FIELD_IDX_IPV6_DA, + /* L4 */ + ICE_FLOW_FIELD_IDX_TCP_SRC_PORT, + ICE_FLOW_FIELD_IDX_TCP_DST_PORT, + ICE_FLOW_FIELD_IDX_UDP_SRC_PORT, + ICE_FLOW_FIELD_IDX_UDP_DST_PORT, + ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT, + ICE_FLOW_FIELD_IDX_SCTP_DST_PORT, + ICE_FLOW_FIELD_IDX_TCP_FLAGS, + /* ARP */ + ICE_FLOW_FIELD_IDX_ARP_SIP, + ICE_FLOW_FIELD_IDX_ARP_DIP, + ICE_FLOW_FIELD_IDX_ARP_SHA, + ICE_FLOW_FIELD_IDX_ARP_DHA, + ICE_FLOW_FIELD_IDX_ARP_OP, + /* ICMP */ + ICE_FLOW_FIELD_IDX_ICMP_TYPE, + ICE_FLOW_FIELD_IDX_ICMP_CODE, + /* GRE */ + ICE_FLOW_FIELD_IDX_GRE_KEYID, + /* The total number of enums must not exceed 64 */ + ICE_FLOW_FIELD_IDX_MAX +}; + +/* Flow headers and fields for AVF support */ +enum ice_flow_avf_hdr_field { + /* Values 0 - 28 are reserved for future use */ + ICE_AVF_FLOW_FIELD_INVALID = 0, + ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP = 29, + ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP, + ICE_AVF_FLOW_FIELD_IPV4_UDP, + ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK, + ICE_AVF_FLOW_FIELD_IPV4_TCP, + ICE_AVF_FLOW_FIELD_IPV4_SCTP, + ICE_AVF_FLOW_FIELD_IPV4_OTHER, + ICE_AVF_FLOW_FIELD_FRAG_IPV4, + ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP = 39, + ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP, + ICE_AVF_FLOW_FIELD_IPV6_UDP, + ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK, + ICE_AVF_FLOW_FIELD_IPV6_TCP, + ICE_AVF_FLOW_FIELD_IPV6_SCTP, + ICE_AVF_FLOW_FIELD_IPV6_OTHER, + ICE_AVF_FLOW_FIELD_FRAG_IPV6, + ICE_AVF_FLOW_FIELD_RSVD47, + ICE_AVF_FLOW_FIELD_FCOE_OX, + ICE_AVF_FLOW_FIELD_FCOE_RX, + ICE_AVF_FLOW_FIELD_FCOE_OTHER, + /* Values 51-62 are reserved */ + ICE_AVF_FLOW_FIELD_L2_PAYLOAD = 63, + ICE_AVF_FLOW_FIELD_MAX +}; + +/* Supported RSS offloads This macro is defined to support + * VIRTCHNL_OP_GET_RSS_HENA_CAPS ops. PF driver sends the RSS hardware + * capabilities to the caller of this ops. + */ +#define ICE_DEFAULT_RSS_HENA ( \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_OTHER) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV4) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_OTHER) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV6) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP) | \ + BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP)) + +enum ice_flow_dir { + ICE_FLOW_DIR_UNDEFINED = 0, + ICE_FLOW_TX = 0x01, + ICE_FLOW_RX = 0x02, + ICE_FLOW_TX_RX = ICE_FLOW_RX | ICE_FLOW_TX +}; + +enum ice_flow_priority { + ICE_FLOW_PRIO_LOW, + ICE_FLOW_PRIO_NORMAL, + ICE_FLOW_PRIO_HIGH +}; + +#define ICE_FLOW_SEG_MAX 2 +#define ICE_FLOW_SEG_RAW_FLD_MAX 2 +#define ICE_FLOW_PROFILE_MAX 1024 +#define ICE_FLOW_SW_FIELD_VECTOR_MAX 48 +#define ICE_FLOW_ACL_FIELD_VECTOR_MAX 32 +#define ICE_FLOW_FV_EXTRACT_SZ 2 + +#define ICE_FLOW_SET_HDRS(seg, val) ((seg)->hdrs |= (u32)(val)) + +struct ice_flow_seg_xtrct { + u8 prot_id; /* Protocol ID of extracted header field */ + u8 off; /* Starting offset of the field in header in bytes */ + u8 idx; /* Index of FV entry used */ + u8 disp; /* Displacement of field in bits fr. FV entry's start */ +}; + +enum ice_flow_fld_match_type { + ICE_FLOW_FLD_TYPE_REG, /* Value, mask */ + ICE_FLOW_FLD_TYPE_RANGE, /* Value, mask, last (upper bound) */ + ICE_FLOW_FLD_TYPE_PREFIX, /* IP address, prefix, size of prefix */ + ICE_FLOW_FLD_TYPE_SIZE, /* Value, mask, size of match */ +}; + +struct ice_flow_fld_loc { + /* Describe offsets of field information relative to the beginning of + * input buffer provided when adding flow entries. + */ + u16 val; /* Offset where the value is located */ + u16 mask; /* Offset where the mask/prefix value is located */ + u16 last; /* Length or offset where the upper value is located */ +}; + +struct ice_flow_fld_info { + enum ice_flow_fld_match_type type; + /* Location where to retrieve data from an input buffer */ + struct ice_flow_fld_loc src; + /* Location where to put the data into the final entry buffer */ + struct ice_flow_fld_loc entry; + struct ice_flow_seg_xtrct xtrct; +}; + +struct ice_flow_seg_fld_raw { + int off; /* Offset from the start of the segment */ + struct ice_flow_fld_info info; +}; + +struct ice_flow_seg_info { + u32 hdrs; /* Bitmask indicating protocol headers present */ + u64 match; /* Bitmask indicating header fields to be matched */ + u64 range; /* Bitmask indicating header fields matched as ranges */ + + struct ice_flow_fld_info fields[ICE_FLOW_FIELD_IDX_MAX]; + + u8 raws_cnt; /* Number of raw fields to be matched */ + struct ice_flow_seg_fld_raw raws[ICE_FLOW_SEG_RAW_FLD_MAX]; +}; + +/* This structure describes a flow entry, and is tracked only in this file */ +struct ice_flow_entry { + struct LIST_ENTRY_TYPE l_entry; + + u64 id; + u16 vsi_handle; + enum ice_flow_priority priority; + + struct ice_flow_prof *prof; + + /* Flow entry's content */ + u16 entry_sz; + void *entry; + + /* Action list */ + u8 acts_cnt; + struct ice_flow_action *acts; +}; + +#define ICE_FLOW_ENTRY_HNDL(e) ((unsigned long)e) +#define ICE_FLOW_ENTRY_PTR(h) ((struct ice_flow_entry *)(h)) + +struct ice_flow_prof { + struct LIST_ENTRY_TYPE l_entry; + + u64 id; + enum ice_flow_dir dir; + + /* Keep track of flow entries associated with this flow profile */ + struct ice_lock entries_lock; + struct LIST_HEAD_TYPE entries; + + u8 segs_cnt; + struct ice_flow_seg_info segs[ICE_FLOW_SEG_MAX]; + + /* software VSI handles referenced by this flow profile */ + ice_declare_bitmap(vsis, ICE_MAX_VSI); + + union { + /* struct sw_recipe */ + /* struct fd */ + u32 data; + } cfg; + + /* Default actions */ + u8 acts_cnt; + struct ice_flow_action *acts; +}; + +struct ice_rss_cfg { + struct LIST_ENTRY_TYPE l_entry; + u64 hashed_flds; + u32 packet_hdr; +}; + +enum ice_flow_action_type { + ICE_FLOW_ACT_NOP, + ICE_FLOW_ACT_ALLOW, + ICE_FLOW_ACT_DROP, + ICE_FLOW_ACT_COUNT, + ICE_FLOW_ACT_FWD_VSI, + ICE_FLOW_ACT_FWD_VSI_LIST, /* Should be abstracted away */ + ICE_FLOW_ACT_FWD_QUEUE, /* Can Queues be abstracted away? */ + ICE_FLOW_ACT_FWD_QUEUE_GROUP, /* Can Queues be abstracted away? */ + ICE_FLOW_ACTION_PUSH, + ICE_FLOW_ACTION_POP, + ICE_FLOW_ACTION_MODIFY, +}; + +struct ice_flow_action { + enum ice_flow_action_type type; + union { + u32 dummy; + } data; +}; + +/* TDD esp in the linux code doesn't like prototypes, so + * ifdef them all out, so they stop conflicting with our mocks + */ +u64 +ice_flow_find_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, + struct ice_flow_seg_info *segs, u8 segs_cnt); +enum ice_status +ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir, + u64 prof_id, struct ice_flow_seg_info *segs, u8 segs_cnt, + struct ice_flow_action *acts, u8 acts_cnt, + struct ice_flow_prof **prof); +enum ice_status +ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id); + +enum ice_status +ice_flow_get_hw_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id, + u8 *hw_prof); + +u64 ice_flow_find_entry(struct ice_hw *hw, enum ice_block blk, u64 entry_id); +enum ice_status +ice_flow_add_entry(struct ice_hw *hw, enum ice_block blk, u64 prof_id, + u64 entry_id, u16 vsi, enum ice_flow_priority prio, + void *data, struct ice_flow_action *acts, u8 acts_cnt, + u64 *entry_h); +enum ice_status ice_flow_rem_entry(struct ice_hw *hw, u64 entry_h); +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); +void +ice_flow_set_fld_prefix(struct ice_flow_seg_info *seg, enum ice_flow_field fld, + u16 val_loc, u16 prefix_loc, u8 prefix_sz); +void +ice_flow_add_fld_raw(struct ice_flow_seg_info *seg, u16 off, u8 len, + u16 val_loc, u16 mask_loc); +void ice_rem_all_rss_vsi_ctx(struct ice_hw *hw, u16 vsi_handle); +enum ice_status ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle); +enum ice_status +ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds); +enum ice_status ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle); +enum ice_status +ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, + u32 addl_hdrs); +enum ice_status +ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds, + u32 addl_hdrs); +u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs); #endif /* _ICE_FLOW_H_ */ diff --git a/drivers/net/ice/base/meson.build b/drivers/net/ice/base/meson.build index 77a9802f40..d7f8536bc0 100644 --- a/drivers/net/ice/base/meson.build +++ b/drivers/net/ice/base/meson.build @@ -8,6 +8,7 @@ sources = [ 'ice_switch.c', 'ice_nvm.c', 'ice_flex_pipe.c', + 'ice_flow.c', ] error_cflags = ['-Wno-unused-value',