--- /dev/null
+/* 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;
+}
git.droids-corp.org / dpdk.git / commitdiff