mirror of https://gitee.com/openkylin/linux.git
1617 lines
48 KiB
C
1617 lines
48 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2019, Intel Corporation. */
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#include "ice_common.h"
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#include "ice_flow.h"
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/* Describe properties of a protocol header field */
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struct ice_flow_field_info {
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enum ice_flow_seg_hdr hdr;
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s16 off; /* Offset from start of a protocol header, in bits */
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u16 size; /* Size of fields in bits */
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};
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#define ICE_FLOW_FLD_INFO(_hdr, _offset_bytes, _size_bytes) { \
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.hdr = _hdr, \
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.off = (_offset_bytes) * BITS_PER_BYTE, \
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.size = (_size_bytes) * BITS_PER_BYTE, \
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}
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/* Table containing properties of supported protocol header fields */
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static const
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struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = {
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/* IPv4 / IPv6 */
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/* ICE_FLOW_FIELD_IDX_IPV4_SA */
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ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 12, sizeof(struct in_addr)),
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/* ICE_FLOW_FIELD_IDX_IPV4_DA */
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ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 16, sizeof(struct in_addr)),
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/* ICE_FLOW_FIELD_IDX_IPV6_SA */
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ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, sizeof(struct in6_addr)),
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/* ICE_FLOW_FIELD_IDX_IPV6_DA */
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ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, sizeof(struct in6_addr)),
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/* Transport */
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/* ICE_FLOW_FIELD_IDX_TCP_SRC_PORT */
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ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 0, sizeof(__be16)),
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/* ICE_FLOW_FIELD_IDX_TCP_DST_PORT */
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ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 2, sizeof(__be16)),
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/* ICE_FLOW_FIELD_IDX_UDP_SRC_PORT */
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ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 0, sizeof(__be16)),
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/* ICE_FLOW_FIELD_IDX_UDP_DST_PORT */
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ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 2, sizeof(__be16)),
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/* ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT */
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ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 0, sizeof(__be16)),
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/* ICE_FLOW_FIELD_IDX_SCTP_DST_PORT */
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ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 2, sizeof(__be16)),
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/* GRE */
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/* ICE_FLOW_FIELD_IDX_GRE_KEYID */
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ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GRE, 12,
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sizeof_field(struct gre_full_hdr, key)),
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};
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/* Bitmaps indicating relevant packet types for a particular protocol header
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*
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* Packet types for packets with an Outer/First/Single IPv4 header
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*/
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static const u32 ice_ptypes_ipv4_ofos[] = {
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0x1DC00000, 0x04000800, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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};
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/* Packet types for packets with an Innermost/Last IPv4 header */
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static const u32 ice_ptypes_ipv4_il[] = {
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0xE0000000, 0xB807700E, 0x80000003, 0xE01DC03B,
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0x0000000E, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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};
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/* Packet types for packets with an Outer/First/Single IPv6 header */
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static const u32 ice_ptypes_ipv6_ofos[] = {
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0x00000000, 0x00000000, 0x77000000, 0x10002000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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};
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/* Packet types for packets with an Innermost/Last IPv6 header */
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static const u32 ice_ptypes_ipv6_il[] = {
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0x00000000, 0x03B80770, 0x000001DC, 0x0EE00000,
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0x00000770, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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};
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/* UDP Packet types for non-tunneled packets or tunneled
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* packets with inner UDP.
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*/
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static const u32 ice_ptypes_udp_il[] = {
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0x81000000, 0x20204040, 0x04000010, 0x80810102,
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0x00000040, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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};
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/* Packet types for packets with an Innermost/Last TCP header */
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static const u32 ice_ptypes_tcp_il[] = {
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0x04000000, 0x80810102, 0x10000040, 0x02040408,
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0x00000102, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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};
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/* Packet types for packets with an Innermost/Last SCTP header */
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static const u32 ice_ptypes_sctp_il[] = {
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0x08000000, 0x01020204, 0x20000081, 0x04080810,
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0x00000204, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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};
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/* Packet types for packets with an Outermost/First GRE header */
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static const u32 ice_ptypes_gre_of[] = {
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0x00000000, 0xBFBF7800, 0x000001DF, 0xFEFDE000,
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0x0000017E, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000,
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};
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/* Manage parameters and info. used during the creation of a flow profile */
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struct ice_flow_prof_params {
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enum ice_block blk;
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u16 entry_length; /* # of bytes formatted entry will require */
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u8 es_cnt;
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struct ice_flow_prof *prof;
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/* For ACL, the es[0] will have the data of ICE_RX_MDID_PKT_FLAGS_15_0
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* This will give us the direction flags.
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*/
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struct ice_fv_word es[ICE_MAX_FV_WORDS];
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DECLARE_BITMAP(ptypes, ICE_FLOW_PTYPE_MAX);
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};
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#define ICE_FLOW_SEG_HDRS_L3_MASK \
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(ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6)
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#define ICE_FLOW_SEG_HDRS_L4_MASK \
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(ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_SCTP)
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/**
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* ice_flow_val_hdrs - validates packet segments for valid protocol headers
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* @segs: array of one or more packet segments that describe the flow
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* @segs_cnt: number of packet segments provided
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*/
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static enum ice_status
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ice_flow_val_hdrs(struct ice_flow_seg_info *segs, u8 segs_cnt)
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{
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u8 i;
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for (i = 0; i < segs_cnt; i++) {
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/* Multiple L3 headers */
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if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK &&
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!is_power_of_2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK))
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return ICE_ERR_PARAM;
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/* Multiple L4 headers */
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if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK &&
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!is_power_of_2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK))
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return ICE_ERR_PARAM;
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}
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return 0;
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}
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/* Sizes of fixed known protocol headers without header options */
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#define ICE_FLOW_PROT_HDR_SZ_MAC 14
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#define ICE_FLOW_PROT_HDR_SZ_IPV4 20
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#define ICE_FLOW_PROT_HDR_SZ_IPV6 40
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#define ICE_FLOW_PROT_HDR_SZ_TCP 20
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#define ICE_FLOW_PROT_HDR_SZ_UDP 8
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#define ICE_FLOW_PROT_HDR_SZ_SCTP 12
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/**
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* ice_flow_calc_seg_sz - calculates size of a packet segment based on headers
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* @params: information about the flow to be processed
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* @seg: index of packet segment whose header size is to be determined
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*/
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static u16 ice_flow_calc_seg_sz(struct ice_flow_prof_params *params, u8 seg)
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{
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u16 sz = ICE_FLOW_PROT_HDR_SZ_MAC;
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/* L3 headers */
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if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4)
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sz += ICE_FLOW_PROT_HDR_SZ_IPV4;
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else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV6)
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sz += ICE_FLOW_PROT_HDR_SZ_IPV6;
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/* L4 headers */
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if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_TCP)
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sz += ICE_FLOW_PROT_HDR_SZ_TCP;
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else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_UDP)
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sz += ICE_FLOW_PROT_HDR_SZ_UDP;
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else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_SCTP)
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sz += ICE_FLOW_PROT_HDR_SZ_SCTP;
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return sz;
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}
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/**
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* ice_flow_proc_seg_hdrs - process protocol headers present in pkt segments
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* @params: information about the flow to be processed
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*
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* This function identifies the packet types associated with the protocol
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* headers being present in packet segments of the specified flow profile.
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*/
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static enum ice_status
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ice_flow_proc_seg_hdrs(struct ice_flow_prof_params *params)
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{
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struct ice_flow_prof *prof;
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u8 i;
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memset(params->ptypes, 0xff, sizeof(params->ptypes));
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prof = params->prof;
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for (i = 0; i < params->prof->segs_cnt; i++) {
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const unsigned long *src;
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u32 hdrs;
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hdrs = prof->segs[i].hdrs;
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if (hdrs & ICE_FLOW_SEG_HDR_IPV4) {
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src = !i ? (const unsigned long *)ice_ptypes_ipv4_ofos :
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(const unsigned long *)ice_ptypes_ipv4_il;
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bitmap_and(params->ptypes, params->ptypes, src,
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ICE_FLOW_PTYPE_MAX);
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} else if (hdrs & ICE_FLOW_SEG_HDR_IPV6) {
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src = !i ? (const unsigned long *)ice_ptypes_ipv6_ofos :
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(const unsigned long *)ice_ptypes_ipv6_il;
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bitmap_and(params->ptypes, params->ptypes, src,
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ICE_FLOW_PTYPE_MAX);
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}
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if (hdrs & ICE_FLOW_SEG_HDR_UDP) {
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src = (const unsigned long *)ice_ptypes_udp_il;
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bitmap_and(params->ptypes, params->ptypes, src,
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ICE_FLOW_PTYPE_MAX);
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} else if (hdrs & ICE_FLOW_SEG_HDR_TCP) {
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bitmap_and(params->ptypes, params->ptypes,
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(const unsigned long *)ice_ptypes_tcp_il,
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ICE_FLOW_PTYPE_MAX);
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} else if (hdrs & ICE_FLOW_SEG_HDR_SCTP) {
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src = (const unsigned long *)ice_ptypes_sctp_il;
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bitmap_and(params->ptypes, params->ptypes, src,
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ICE_FLOW_PTYPE_MAX);
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} else if (hdrs & ICE_FLOW_SEG_HDR_GRE) {
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if (!i) {
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src = (const unsigned long *)ice_ptypes_gre_of;
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bitmap_and(params->ptypes, params->ptypes,
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src, ICE_FLOW_PTYPE_MAX);
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}
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}
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}
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return 0;
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}
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/**
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* ice_flow_xtract_fld - Create an extraction sequence entry for the given field
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* @hw: pointer to the HW struct
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* @params: information about the flow to be processed
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* @seg: packet segment index of the field to be extracted
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* @fld: ID of field to be extracted
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*
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* This function determines the protocol ID, offset, and size of the given
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* field. It then allocates one or more extraction sequence entries for the
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* given field, and fill the entries with protocol ID and offset information.
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*/
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static enum ice_status
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ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params,
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u8 seg, enum ice_flow_field fld)
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{
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enum ice_prot_id prot_id = ICE_PROT_ID_INVAL;
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u8 fv_words = hw->blk[params->blk].es.fvw;
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struct ice_flow_fld_info *flds;
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u16 cnt, ese_bits, i;
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u16 off;
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flds = params->prof->segs[seg].fields;
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switch (fld) {
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case ICE_FLOW_FIELD_IDX_IPV4_SA:
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case ICE_FLOW_FIELD_IDX_IPV4_DA:
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prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL;
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break;
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case ICE_FLOW_FIELD_IDX_IPV6_SA:
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case ICE_FLOW_FIELD_IDX_IPV6_DA:
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prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL;
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break;
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case ICE_FLOW_FIELD_IDX_TCP_SRC_PORT:
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case ICE_FLOW_FIELD_IDX_TCP_DST_PORT:
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prot_id = ICE_PROT_TCP_IL;
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break;
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case ICE_FLOW_FIELD_IDX_UDP_SRC_PORT:
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case ICE_FLOW_FIELD_IDX_UDP_DST_PORT:
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prot_id = ICE_PROT_UDP_IL_OR_S;
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break;
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case ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT:
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case ICE_FLOW_FIELD_IDX_SCTP_DST_PORT:
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prot_id = ICE_PROT_SCTP_IL;
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break;
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case ICE_FLOW_FIELD_IDX_GRE_KEYID:
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prot_id = ICE_PROT_GRE_OF;
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break;
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default:
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return ICE_ERR_NOT_IMPL;
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}
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/* Each extraction sequence entry is a word in size, and extracts a
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* word-aligned offset from a protocol header.
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*/
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ese_bits = ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE;
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flds[fld].xtrct.prot_id = prot_id;
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flds[fld].xtrct.off = (ice_flds_info[fld].off / ese_bits) *
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ICE_FLOW_FV_EXTRACT_SZ;
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flds[fld].xtrct.disp = (u8)(ice_flds_info[fld].off % ese_bits);
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flds[fld].xtrct.idx = params->es_cnt;
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/* Adjust the next field-entry index after accommodating the number of
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* entries this field consumes
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*/
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cnt = DIV_ROUND_UP(flds[fld].xtrct.disp + ice_flds_info[fld].size,
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ese_bits);
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/* Fill in the extraction sequence entries needed for this field */
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off = flds[fld].xtrct.off;
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for (i = 0; i < cnt; i++) {
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u8 idx;
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/* Make sure the number of extraction sequence required
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* does not exceed the block's capability
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*/
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if (params->es_cnt >= fv_words)
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return ICE_ERR_MAX_LIMIT;
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/* some blocks require a reversed field vector layout */
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if (hw->blk[params->blk].es.reverse)
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idx = fv_words - params->es_cnt - 1;
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else
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idx = params->es_cnt;
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params->es[idx].prot_id = prot_id;
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params->es[idx].off = off;
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params->es_cnt++;
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off += ICE_FLOW_FV_EXTRACT_SZ;
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}
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return 0;
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}
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/**
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* ice_flow_xtract_raws - Create extract sequence entries for raw bytes
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* @hw: pointer to the HW struct
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* @params: information about the flow to be processed
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* @seg: index of packet segment whose raw fields are to be be extracted
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*/
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static enum ice_status
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ice_flow_xtract_raws(struct ice_hw *hw, struct ice_flow_prof_params *params,
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u8 seg)
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{
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u16 fv_words;
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u16 hdrs_sz;
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u8 i;
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if (!params->prof->segs[seg].raws_cnt)
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return 0;
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if (params->prof->segs[seg].raws_cnt >
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ARRAY_SIZE(params->prof->segs[seg].raws))
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return ICE_ERR_MAX_LIMIT;
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/* Offsets within the segment headers are not supported */
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hdrs_sz = ice_flow_calc_seg_sz(params, seg);
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if (!hdrs_sz)
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return ICE_ERR_PARAM;
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fv_words = hw->blk[params->blk].es.fvw;
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|
|
for (i = 0; i < params->prof->segs[seg].raws_cnt; i++) {
|
|
struct ice_flow_seg_fld_raw *raw;
|
|
u16 off, cnt, j;
|
|
|
|
raw = ¶ms->prof->segs[seg].raws[i];
|
|
|
|
/* Storing extraction information */
|
|
raw->info.xtrct.prot_id = ICE_PROT_MAC_OF_OR_S;
|
|
raw->info.xtrct.off = (raw->off / ICE_FLOW_FV_EXTRACT_SZ) *
|
|
ICE_FLOW_FV_EXTRACT_SZ;
|
|
raw->info.xtrct.disp = (raw->off % ICE_FLOW_FV_EXTRACT_SZ) *
|
|
BITS_PER_BYTE;
|
|
raw->info.xtrct.idx = params->es_cnt;
|
|
|
|
/* Determine the number of field vector entries this raw field
|
|
* consumes.
|
|
*/
|
|
cnt = DIV_ROUND_UP(raw->info.xtrct.disp +
|
|
(raw->info.src.last * BITS_PER_BYTE),
|
|
(ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE));
|
|
off = raw->info.xtrct.off;
|
|
for (j = 0; j < cnt; j++) {
|
|
u16 idx;
|
|
|
|
/* Make sure the number of extraction sequence required
|
|
* does not exceed the block's capability
|
|
*/
|
|
if (params->es_cnt >= hw->blk[params->blk].es.count ||
|
|
params->es_cnt >= ICE_MAX_FV_WORDS)
|
|
return 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 = raw->info.xtrct.prot_id;
|
|
params->es[idx].off = off;
|
|
params->es_cnt++;
|
|
off += ICE_FLOW_FV_EXTRACT_SZ;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ice_flow_create_xtrct_seq - Create an extraction sequence for given segments
|
|
* @hw: pointer to the HW struct
|
|
* @params: information about the flow to be processed
|
|
*
|
|
* This function iterates through all matched fields in the given segments, and
|
|
* creates an extraction sequence for the fields.
|
|
*/
|
|
static enum ice_status
|
|
ice_flow_create_xtrct_seq(struct ice_hw *hw,
|
|
struct ice_flow_prof_params *params)
|
|
{
|
|
struct ice_flow_prof *prof = params->prof;
|
|
enum ice_status status = 0;
|
|
u8 i;
|
|
|
|
for (i = 0; i < prof->segs_cnt; i++) {
|
|
u8 j;
|
|
|
|
for_each_set_bit(j, (unsigned long *)&prof->segs[i].match,
|
|
ICE_FLOW_FIELD_IDX_MAX) {
|
|
status = ice_flow_xtract_fld(hw, params, i,
|
|
(enum ice_flow_field)j);
|
|
if (status)
|
|
return status;
|
|
}
|
|
|
|
/* 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_FD:
|
|
case ICE_BLK_RSS:
|
|
status = 0;
|
|
break;
|
|
default:
|
|
return ICE_ERR_NOT_IMPL;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
#define ICE_FLOW_FIND_PROF_CHK_FLDS 0x00000001
|
|
#define ICE_FLOW_FIND_PROF_CHK_VSI 0x00000002
|
|
#define ICE_FLOW_FIND_PROF_NOT_CHK_DIR 0x00000004
|
|
|
|
/**
|
|
* 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, *prof = NULL;
|
|
|
|
mutex_lock(&hw->fl_profs_locks[blk]);
|
|
list_for_each_entry(p, &hw->fl_profs[blk], l_entry)
|
|
if ((p->dir == dir || conds & ICE_FLOW_FIND_PROF_NOT_CHK_DIR) &&
|
|
segs_cnt && segs_cnt == p->segs_cnt) {
|
|
u8 i;
|
|
|
|
/* Check for profile-VSI association if specified */
|
|
if ((conds & ICE_FLOW_FIND_PROF_CHK_VSI) &&
|
|
ice_is_vsi_valid(hw, vsi_handle) &&
|
|
!test_bit(vsi_handle, p->vsis))
|
|
continue;
|
|
|
|
/* Protocol headers must be checked. Matched fields are
|
|
* checked if specified.
|
|
*/
|
|
for (i = 0; i < segs_cnt; i++)
|
|
if (segs[i].hdrs != p->segs[i].hdrs ||
|
|
((conds & ICE_FLOW_FIND_PROF_CHK_FLDS) &&
|
|
segs[i].match != p->segs[i].match))
|
|
break;
|
|
|
|
/* A match is found if all segments are matched */
|
|
if (i == segs_cnt) {
|
|
prof = p;
|
|
break;
|
|
}
|
|
}
|
|
mutex_unlock(&hw->fl_profs_locks[blk]);
|
|
|
|
return prof;
|
|
}
|
|
|
|
/**
|
|
* ice_flow_find_prof_id - Look up a profile with given profile ID
|
|
* @hw: pointer to the HW struct
|
|
* @blk: classification stage
|
|
* @prof_id: unique ID to identify this flow profile
|
|
*/
|
|
static struct ice_flow_prof *
|
|
ice_flow_find_prof_id(struct ice_hw *hw, enum ice_block blk, u64 prof_id)
|
|
{
|
|
struct ice_flow_prof *p;
|
|
|
|
list_for_each_entry(p, &hw->fl_profs[blk], l_entry)
|
|
if (p->id == prof_id)
|
|
return p;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* ice_dealloc_flow_entry - Deallocate flow entry memory
|
|
* @hw: pointer to the HW struct
|
|
* @entry: flow entry to be removed
|
|
*/
|
|
static void
|
|
ice_dealloc_flow_entry(struct ice_hw *hw, struct ice_flow_entry *entry)
|
|
{
|
|
if (!entry)
|
|
return;
|
|
|
|
if (entry->entry)
|
|
devm_kfree(ice_hw_to_dev(hw), entry->entry);
|
|
|
|
devm_kfree(ice_hw_to_dev(hw), entry);
|
|
}
|
|
|
|
/**
|
|
* ice_flow_rem_entry_sync - Remove a flow entry
|
|
* @hw: pointer to the HW struct
|
|
* @blk: classification stage
|
|
* @entry: flow entry to be removed
|
|
*/
|
|
static enum ice_status
|
|
ice_flow_rem_entry_sync(struct ice_hw *hw, enum ice_block __always_unused blk,
|
|
struct ice_flow_entry *entry)
|
|
{
|
|
if (!entry)
|
|
return ICE_ERR_BAD_PTR;
|
|
|
|
list_del(&entry->l_entry);
|
|
|
|
ice_dealloc_flow_entry(hw, entry);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ice_flow_add_prof_sync - Add a flow profile for packet segments and fields
|
|
* @hw: pointer to the HW struct
|
|
* @blk: classification stage
|
|
* @dir: flow direction
|
|
* @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
|
|
* @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_prof **prof)
|
|
{
|
|
struct ice_flow_prof_params params;
|
|
enum ice_status status;
|
|
u8 i;
|
|
|
|
if (!prof)
|
|
return ICE_ERR_BAD_PTR;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
params.prof = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*params.prof),
|
|
GFP_KERNEL);
|
|
if (!params.prof)
|
|
return ICE_ERR_NO_MEMORY;
|
|
|
|
/* initialize extraction sequence to all invalid (0xff) */
|
|
for (i = 0; i < ICE_MAX_FV_WORDS; i++) {
|
|
params.es[i].prot_id = ICE_PROT_INVALID;
|
|
params.es[i].off = ICE_FV_OFFSET_INVAL;
|
|
}
|
|
|
|
params.blk = blk;
|
|
params.prof->id = prof_id;
|
|
params.prof->dir = dir;
|
|
params.prof->segs_cnt = segs_cnt;
|
|
|
|
/* Make a copy of the segments that need to be persistent in the flow
|
|
* profile instance
|
|
*/
|
|
for (i = 0; i < segs_cnt; i++)
|
|
memcpy(¶ms.prof->segs[i], &segs[i], sizeof(*segs));
|
|
|
|
status = ice_flow_proc_segs(hw, ¶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);
|
|
mutex_init(¶ms.prof->entries_lock);
|
|
*prof = params.prof;
|
|
|
|
out:
|
|
if (status)
|
|
devm_kfree(ice_hw_to_dev(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;
|
|
|
|
/* Remove all remaining flow entries before removing the flow profile */
|
|
if (!list_empty(&prof->entries)) {
|
|
struct ice_flow_entry *e, *t;
|
|
|
|
mutex_lock(&prof->entries_lock);
|
|
|
|
list_for_each_entry_safe(e, t, &prof->entries, l_entry) {
|
|
status = ice_flow_rem_entry_sync(hw, blk, e);
|
|
if (status)
|
|
break;
|
|
}
|
|
|
|
mutex_unlock(&prof->entries_lock);
|
|
}
|
|
|
|
/* Remove all hardware profiles associated with this flow profile */
|
|
status = ice_rem_prof(hw, blk, prof->id);
|
|
if (!status) {
|
|
list_del(&prof->l_entry);
|
|
mutex_destroy(&prof->entries_lock);
|
|
devm_kfree(ice_hw_to_dev(hw), prof);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ice_flow_assoc_prof - associate a VSI with a flow profile
|
|
* @hw: pointer to the hardware structure
|
|
* @blk: classification stage
|
|
* @prof: pointer to flow profile
|
|
* @vsi_handle: software VSI handle
|
|
*
|
|
* Assumption: the caller has acquired the lock to the profile list
|
|
* and the software VSI handle has been validated
|
|
*/
|
|
static 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 = 0;
|
|
|
|
if (!test_bit(vsi_handle, prof->vsis)) {
|
|
status = ice_add_prof_id_flow(hw, blk,
|
|
ice_get_hw_vsi_num(hw,
|
|
vsi_handle),
|
|
prof->id);
|
|
if (!status)
|
|
set_bit(vsi_handle, prof->vsis);
|
|
else
|
|
ice_debug(hw, ICE_DBG_FLOW,
|
|
"HW profile add failed, %d\n",
|
|
status);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ice_flow_disassoc_prof - disassociate a VSI from a flow profile
|
|
* @hw: pointer to the hardware structure
|
|
* @blk: classification stage
|
|
* @prof: pointer to flow profile
|
|
* @vsi_handle: software VSI handle
|
|
*
|
|
* Assumption: the caller has acquired the lock to the profile list
|
|
* and the software VSI handle has been validated
|
|
*/
|
|
static 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 = 0;
|
|
|
|
if (test_bit(vsi_handle, prof->vsis)) {
|
|
status = ice_rem_prof_id_flow(hw, blk,
|
|
ice_get_hw_vsi_num(hw,
|
|
vsi_handle),
|
|
prof->id);
|
|
if (!status)
|
|
clear_bit(vsi_handle, prof->vsis);
|
|
else
|
|
ice_debug(hw, ICE_DBG_FLOW,
|
|
"HW profile remove failed, %d\n",
|
|
status);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
* @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_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;
|
|
|
|
mutex_lock(&hw->fl_profs_locks[blk]);
|
|
|
|
status = ice_flow_add_prof_sync(hw, blk, dir, prof_id, segs, segs_cnt,
|
|
prof);
|
|
if (!status)
|
|
list_add(&(*prof)->l_entry, &hw->fl_profs[blk]);
|
|
|
|
mutex_unlock(&hw->fl_profs_locks[blk]);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ice_flow_rem_prof - Remove a flow profile and all entries associated with it
|
|
* @hw: pointer to the HW struct
|
|
* @blk: the block for which the flow profile is to be removed
|
|
* @prof_id: unique ID of the flow profile to be removed
|
|
*/
|
|
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;
|
|
|
|
mutex_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:
|
|
mutex_unlock(&hw->fl_profs_locks[blk]);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ice_flow_add_entry - Add a flow entry
|
|
* @hw: pointer to the HW struct
|
|
* @blk: classification stage
|
|
* @prof_id: ID of the profile to add a new flow entry to
|
|
* @entry_id: unique ID to identify this flow entry
|
|
* @vsi_handle: software VSI handle for the flow entry
|
|
* @prio: priority of the flow entry
|
|
* @data: pointer to a data buffer containing flow entry's match values/masks
|
|
* @entry_h: pointer to buffer that receives the new flow entry's handle
|
|
*/
|
|
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, u64 *entry_h)
|
|
{
|
|
struct ice_flow_entry *e = NULL;
|
|
struct ice_flow_prof *prof;
|
|
enum ice_status status;
|
|
|
|
/* 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;
|
|
|
|
mutex_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 = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*e), GFP_KERNEL);
|
|
if (!e)
|
|
status = ICE_ERR_NO_MEMORY;
|
|
else
|
|
status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
|
|
}
|
|
|
|
mutex_unlock(&hw->fl_profs_locks[blk]);
|
|
if (status)
|
|
goto out;
|
|
|
|
e->id = entry_id;
|
|
e->vsi_handle = vsi_handle;
|
|
e->prof = prof;
|
|
e->priority = prio;
|
|
|
|
switch (blk) {
|
|
case ICE_BLK_FD:
|
|
case ICE_BLK_RSS:
|
|
break;
|
|
default:
|
|
status = ICE_ERR_NOT_IMPL;
|
|
goto out;
|
|
}
|
|
|
|
mutex_lock(&prof->entries_lock);
|
|
list_add(&e->l_entry, &prof->entries);
|
|
mutex_unlock(&prof->entries_lock);
|
|
|
|
*entry_h = ICE_FLOW_ENTRY_HNDL(e);
|
|
|
|
out:
|
|
if (status && e) {
|
|
if (e->entry)
|
|
devm_kfree(ice_hw_to_dev(hw), e->entry);
|
|
devm_kfree(ice_hw_to_dev(hw), e);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ice_flow_rem_entry - Remove a flow entry
|
|
* @hw: pointer to the HW struct
|
|
* @blk: classification stage
|
|
* @entry_h: handle to the flow entry to be removed
|
|
*/
|
|
enum ice_status ice_flow_rem_entry(struct ice_hw *hw, enum ice_block blk,
|
|
u64 entry_h)
|
|
{
|
|
struct ice_flow_entry *entry;
|
|
struct ice_flow_prof *prof;
|
|
enum ice_status status = 0;
|
|
|
|
if (entry_h == ICE_FLOW_ENTRY_HANDLE_INVAL)
|
|
return ICE_ERR_PARAM;
|
|
|
|
entry = ICE_FLOW_ENTRY_PTR(entry_h);
|
|
|
|
/* Retain the pointer to the flow profile as the entry will be freed */
|
|
prof = entry->prof;
|
|
|
|
if (prof) {
|
|
mutex_lock(&prof->entries_lock);
|
|
status = ice_flow_rem_entry_sync(hw, blk, entry);
|
|
mutex_unlock(&prof->entries_lock);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ice_flow_set_fld_ext - specifies locations of field from entry's input buffer
|
|
* @seg: packet segment the field being set belongs to
|
|
* @fld: field to be set
|
|
* @field_type: type of the field
|
|
* @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
|
|
* entry's input buffer
|
|
* @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's
|
|
* input buffer
|
|
* @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from
|
|
* entry's input buffer
|
|
*
|
|
* This helper function stores information of a field being matched, including
|
|
* the type of the field and the locations of the value to match, the mask, and
|
|
* and the upper-bound value in the start of the input buffer for a flow entry.
|
|
* This function should only be used for fixed-size data structures.
|
|
*
|
|
* This function also opportunistically determines the protocol headers to be
|
|
* present based on the fields being set. Some fields cannot be used alone to
|
|
* determine the protocol headers present. Sometimes, fields for particular
|
|
* protocol headers are not matched. In those cases, the protocol headers
|
|
* must be explicitly set.
|
|
*/
|
|
static void
|
|
ice_flow_set_fld_ext(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
|
|
enum ice_flow_fld_match_type field_type, u16 val_loc,
|
|
u16 mask_loc, u16 last_loc)
|
|
{
|
|
u64 bit = BIT_ULL(fld);
|
|
|
|
seg->match |= bit;
|
|
if (field_type == ICE_FLOW_FLD_TYPE_RANGE)
|
|
seg->range |= bit;
|
|
|
|
seg->fields[fld].type = field_type;
|
|
seg->fields[fld].src.val = val_loc;
|
|
seg->fields[fld].src.mask = mask_loc;
|
|
seg->fields[fld].src.last = last_loc;
|
|
|
|
ICE_FLOW_SET_HDRS(seg, ice_flds_info[fld].hdr);
|
|
}
|
|
|
|
/**
|
|
* ice_flow_set_fld - specifies locations of field from entry's input buffer
|
|
* @seg: packet segment the field being set belongs to
|
|
* @fld: field to be set
|
|
* @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
|
|
* entry's input buffer
|
|
* @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's
|
|
* input buffer
|
|
* @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from
|
|
* entry's input buffer
|
|
* @range: indicate if field being matched is to be in a range
|
|
*
|
|
* This function specifies the locations, in the form of byte offsets from the
|
|
* start of the input buffer for a flow entry, from where the value to match,
|
|
* the mask value, and upper value can be extracted. These locations are then
|
|
* stored in the flow profile. When adding a flow entry associated with the
|
|
* flow profile, these locations will be used to quickly extract the values and
|
|
* create the content of a match entry. This function should only be used for
|
|
* fixed-size data structures.
|
|
*/
|
|
void
|
|
ice_flow_set_fld(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
|
|
u16 val_loc, u16 mask_loc, u16 last_loc, bool range)
|
|
{
|
|
enum ice_flow_fld_match_type t = range ?
|
|
ICE_FLOW_FLD_TYPE_RANGE : ICE_FLOW_FLD_TYPE_REG;
|
|
|
|
ice_flow_set_fld_ext(seg, fld, t, val_loc, mask_loc, last_loc);
|
|
}
|
|
|
|
/**
|
|
* ice_flow_add_fld_raw - sets locations of a raw field from entry's input buf
|
|
* @seg: packet segment the field being set belongs to
|
|
* @off: offset of the raw field from the beginning of the segment in bytes
|
|
* @len: length of the raw pattern to be matched
|
|
* @val_loc: location of the value to match from entry's input buffer
|
|
* @mask_loc: location of mask value from entry's input buffer
|
|
*
|
|
* This function specifies the offset of the raw field to be match from the
|
|
* beginning of the specified packet segment, and the locations, in the form of
|
|
* byte offsets from the start of the input buffer for a flow entry, from where
|
|
* the value to match and the mask value to be extracted. These locations are
|
|
* then stored in the flow profile. When adding flow entries to the associated
|
|
* flow profile, these locations can be used to quickly extract the values to
|
|
* create the content of a match entry. This function should only be used for
|
|
* fixed-size data structures.
|
|
*/
|
|
void
|
|
ice_flow_add_fld_raw(struct ice_flow_seg_info *seg, u16 off, u8 len,
|
|
u16 val_loc, u16 mask_loc)
|
|
{
|
|
if (seg->raws_cnt < ICE_FLOW_SEG_RAW_FLD_MAX) {
|
|
seg->raws[seg->raws_cnt].off = off;
|
|
seg->raws[seg->raws_cnt].info.type = ICE_FLOW_FLD_TYPE_SIZE;
|
|
seg->raws[seg->raws_cnt].info.src.val = val_loc;
|
|
seg->raws[seg->raws_cnt].info.src.mask = mask_loc;
|
|
/* The "last" field is used to store the length of the field */
|
|
seg->raws[seg->raws_cnt].info.src.last = len;
|
|
}
|
|
|
|
/* Overflows of "raws" will be handled as an error condition later in
|
|
* the flow when this information is processed.
|
|
*/
|
|
seg->raws_cnt++;
|
|
}
|
|
|
|
#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;
|
|
u8 i;
|
|
|
|
for_each_set_bit(i, (unsigned long *)&hash_fields,
|
|
ICE_FLOW_FIELD_IDX_MAX)
|
|
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);
|
|
|
|
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 (val && !is_power_of_2(val))
|
|
return ICE_ERR_CFG;
|
|
|
|
val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS);
|
|
if (val && !is_power_of_2(val))
|
|
return ICE_ERR_CFG;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ice_rem_vsi_rss_list - remove VSI from RSS list
|
|
* @hw: pointer to the hardware structure
|
|
* @vsi_handle: software VSI handle
|
|
*
|
|
* Remove the VSI from all RSS configurations in the list.
|
|
*/
|
|
void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle)
|
|
{
|
|
struct ice_rss_cfg *r, *tmp;
|
|
|
|
if (list_empty(&hw->rss_list_head))
|
|
return;
|
|
|
|
mutex_lock(&hw->rss_locks);
|
|
list_for_each_entry_safe(r, tmp, &hw->rss_list_head, l_entry)
|
|
if (test_and_clear_bit(vsi_handle, r->vsis))
|
|
if (bitmap_empty(r->vsis, ICE_MAX_VSI)) {
|
|
list_del(&r->l_entry);
|
|
devm_kfree(ice_hw_to_dev(hw), r);
|
|
}
|
|
mutex_unlock(&hw->rss_locks);
|
|
}
|
|
|
|
/**
|
|
* ice_rem_vsi_rss_cfg - remove RSS configurations associated with VSI
|
|
* @hw: pointer to the hardware structure
|
|
* @vsi_handle: software VSI handle
|
|
*
|
|
* This function will iterate through all flow profiles and disassociate
|
|
* the VSI from that profile. If the flow profile has no VSIs it will
|
|
* be removed.
|
|
*/
|
|
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 = 0;
|
|
|
|
if (!ice_is_vsi_valid(hw, vsi_handle))
|
|
return ICE_ERR_PARAM;
|
|
|
|
if (list_empty(&hw->fl_profs[blk]))
|
|
return 0;
|
|
|
|
mutex_lock(&hw->fl_profs_locks[blk]);
|
|
list_for_each_entry_safe(p, t, &hw->fl_profs[blk], l_entry)
|
|
if (test_bit(vsi_handle, p->vsis)) {
|
|
status = ice_flow_disassoc_prof(hw, blk, p, vsi_handle);
|
|
if (status)
|
|
break;
|
|
|
|
if (bitmap_empty(p->vsis, ICE_MAX_VSI)) {
|
|
status = ice_flow_rem_prof_sync(hw, blk, p);
|
|
if (status)
|
|
break;
|
|
}
|
|
}
|
|
mutex_unlock(&hw->fl_profs_locks[blk]);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ice_rem_rss_list - remove RSS configuration from list
|
|
* @hw: pointer to the hardware structure
|
|
* @vsi_handle: software VSI handle
|
|
* @prof: pointer to flow profile
|
|
*
|
|
* Assumption: lock has already been acquired for RSS list
|
|
*/
|
|
static void
|
|
ice_rem_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof)
|
|
{
|
|
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->rss_list_head, l_entry)
|
|
if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
|
|
r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
|
|
clear_bit(vsi_handle, r->vsis);
|
|
if (bitmap_empty(r->vsis, ICE_MAX_VSI)) {
|
|
list_del(&r->l_entry);
|
|
devm_kfree(ice_hw_to_dev(hw), r);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ice_add_rss_list - add RSS configuration to list
|
|
* @hw: pointer to the hardware structure
|
|
* @vsi_handle: software VSI handle
|
|
* @prof: pointer to flow profile
|
|
*
|
|
* Assumption: lock has already been acquired for RSS list
|
|
*/
|
|
static enum ice_status
|
|
ice_add_rss_list(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->rss_list_head, l_entry)
|
|
if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
|
|
r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
|
|
set_bit(vsi_handle, r->vsis);
|
|
return 0;
|
|
}
|
|
|
|
rss_cfg = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*rss_cfg),
|
|
GFP_KERNEL);
|
|
if (!rss_cfg)
|
|
return 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;
|
|
set_bit(vsi_handle, rss_cfg->vsis);
|
|
|
|
list_add_tail(&rss_cfg->l_entry, &hw->rss_list_head);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#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 (0x3FFFFFFFULL << ICE_FLOW_PROF_HDR_S)
|
|
#define ICE_FLOW_PROF_ENCAP_S 63
|
|
#define ICE_FLOW_PROF_ENCAP_M (BIT_ULL(ICE_FLOW_PROF_ENCAP_S))
|
|
|
|
#define ICE_RSS_OUTER_HEADERS 1
|
|
#define ICE_RSS_INNER_HEADERS 2
|
|
|
|
/* Flow profile ID format:
|
|
* [0:31] - Packet match fields
|
|
* [32:62] - Protocol header
|
|
* [63] - Encapsulation flag, 0 if non-tunneled, 1 if tunneled
|
|
*/
|
|
#define ICE_FLOW_GEN_PROFID(hash, hdr, segs_cnt) \
|
|
(u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \
|
|
(((u64)(hdr) << ICE_FLOW_PROF_HDR_S) & ICE_FLOW_PROF_HDR_M) | \
|
|
((u8)((segs_cnt) - 1) ? ICE_FLOW_PROF_ENCAP_M : 0))
|
|
|
|
/**
|
|
* 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
|
|
* @segs_cnt: packet segment count
|
|
*
|
|
* 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, u8 segs_cnt)
|
|
{
|
|
const enum ice_block blk = ICE_BLK_RSS;
|
|
struct ice_flow_prof *prof = NULL;
|
|
struct ice_flow_seg_info *segs;
|
|
enum ice_status status;
|
|
|
|
if (!segs_cnt || segs_cnt > ICE_FLOW_SEG_MAX)
|
|
return ICE_ERR_PARAM;
|
|
|
|
segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL);
|
|
if (!segs)
|
|
return ICE_ERR_NO_MEMORY;
|
|
|
|
/* Construct the packet segment info from the hashed fields */
|
|
status = ice_flow_set_rss_seg_info(&segs[segs_cnt - 1], 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, segs_cnt,
|
|
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 disassociate the VSI from
|
|
* this profile. The VSI will be added to a new profile created with
|
|
* the protocol header and new hash field configuration.
|
|
*/
|
|
prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
|
|
vsi_handle, ICE_FLOW_FIND_PROF_CHK_VSI);
|
|
if (prof) {
|
|
status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle);
|
|
if (!status)
|
|
ice_rem_rss_list(hw, vsi_handle, prof);
|
|
else
|
|
goto exit;
|
|
|
|
/* Remove profile if it has no VSIs associated */
|
|
if (bitmap_empty(prof->vsis, ICE_MAX_VSI)) {
|
|
status = ice_flow_rem_prof(hw, blk, prof->id);
|
|
if (status)
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
/* Search for a profile that has 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, segs_cnt,
|
|
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_list(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[segs_cnt - 1].hdrs,
|
|
segs_cnt),
|
|
segs, segs_cnt, &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(hw, blk, prof->id);
|
|
goto exit;
|
|
}
|
|
|
|
status = ice_add_rss_list(hw, vsi_handle, prof);
|
|
|
|
exit:
|
|
kfree(segs);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ice_add_rss_cfg - add an RSS configuration with specified hashed fields
|
|
* @hw: pointer to the hardware structure
|
|
* @vsi_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;
|
|
|
|
mutex_lock(&hw->rss_locks);
|
|
status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs,
|
|
ICE_RSS_OUTER_HEADERS);
|
|
if (!status)
|
|
status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds,
|
|
addl_hdrs, ICE_RSS_INNER_HEADERS);
|
|
mutex_unlock(&hw->rss_locks);
|
|
|
|
return status;
|
|
}
|
|
|
|
/* Mapping of AVF hash bit fields to an L3-L4 hash combination.
|
|
* As the ice_flow_avf_hdr_field represent individual bit shifts in a hash,
|
|
* convert its values to their appropriate flow L3, L4 values.
|
|
*/
|
|
#define ICE_FLOW_AVF_RSS_IPV4_MASKS \
|
|
(BIT_ULL(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))
|
|
|
|
/**
|
|
* 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)
|
|
{
|
|
enum ice_status status = 0;
|
|
u64 hash_flds;
|
|
|
|
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_IPV4_MASKS) {
|
|
rss_hash = ICE_FLOW_HASH_IPV4;
|
|
hash_flds &= ~ICE_FLOW_AVF_RSS_IPV4_MASKS;
|
|
} else if (hash_flds &
|
|
ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS) {
|
|
rss_hash = ICE_FLOW_HASH_IPV4 |
|
|
ICE_FLOW_HASH_TCP_PORT;
|
|
hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS;
|
|
} else if (hash_flds &
|
|
ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS) {
|
|
rss_hash = ICE_FLOW_HASH_IPV4 |
|
|
ICE_FLOW_HASH_UDP_PORT;
|
|
hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS;
|
|
} else if (hash_flds &
|
|
BIT_ULL(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_ALL_IPV6_MASKS) {
|
|
if (hash_flds & ICE_FLOW_AVF_RSS_IPV6_MASKS) {
|
|
rss_hash = ICE_FLOW_HASH_IPV6;
|
|
hash_flds &= ~ICE_FLOW_AVF_RSS_IPV6_MASKS;
|
|
} else if (hash_flds &
|
|
ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS) {
|
|
rss_hash = ICE_FLOW_HASH_IPV6 |
|
|
ICE_FLOW_HASH_TCP_PORT;
|
|
hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS;
|
|
} else if (hash_flds &
|
|
ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS) {
|
|
rss_hash = ICE_FLOW_HASH_IPV6 |
|
|
ICE_FLOW_HASH_UDP_PORT;
|
|
hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS;
|
|
} else if (hash_flds &
|
|
BIT_ULL(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);
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ice_replay_rss_cfg - replay 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 = 0;
|
|
struct ice_rss_cfg *r;
|
|
|
|
if (!ice_is_vsi_valid(hw, vsi_handle))
|
|
return ICE_ERR_PARAM;
|
|
|
|
mutex_lock(&hw->rss_locks);
|
|
list_for_each_entry(r, &hw->rss_list_head, l_entry) {
|
|
if (test_bit(vsi_handle, r->vsis)) {
|
|
status = ice_add_rss_cfg_sync(hw, vsi_handle,
|
|
r->hashed_flds,
|
|
r->packet_hdr,
|
|
ICE_RSS_OUTER_HEADERS);
|
|
if (status)
|
|
break;
|
|
status = ice_add_rss_cfg_sync(hw, vsi_handle,
|
|
r->hashed_flds,
|
|
r->packet_hdr,
|
|
ICE_RSS_INNER_HEADERS);
|
|
if (status)
|
|
break;
|
|
}
|
|
}
|
|
mutex_unlock(&hw->rss_locks);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* ice_get_rss_cfg - returns hashed fields for the given header types
|
|
* @hw: pointer to the hardware structure
|
|
* @vsi_handle: software VSI handle
|
|
* @hdrs: protocol header type
|
|
*
|
|
* 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;
|
|
|
|
mutex_lock(&hw->rss_locks);
|
|
list_for_each_entry(r, &hw->rss_list_head, l_entry)
|
|
if (test_bit(vsi_handle, r->vsis) &&
|
|
r->packet_hdr == hdrs) {
|
|
rss_cfg = r;
|
|
break;
|
|
}
|
|
mutex_unlock(&hw->rss_locks);
|
|
|
|
return rss_cfg ? rss_cfg->hashed_flds : ICE_HASH_INVALID;
|
|
}
|