LXR linux/drivers/net/ethernet/intel/ixgbe/ixgbe

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/* Copyright(c) 1999 - 2018 Intel Corporation. */
   3
   4#ifndef _IXGBE_MODEL_H_
   5#define _IXGBE_MODEL_H_
   6
   7#include "ixgbe.h"
   8#include "ixgbe_type.h"
   9
  10struct ixgbe_mat_field {
  11        unsigned int off;
  12        int (*val)(struct ixgbe_fdir_filter *input,
  13                   union ixgbe_atr_input *mask,
  14                   u32 val, u32 m);
  15        unsigned int type;
  16};
  17
  18struct ixgbe_jump_table {
  19        struct ixgbe_mat_field *mat;
  20        struct ixgbe_fdir_filter *input;
  21        union ixgbe_atr_input *mask;
  22        u32 link_hdl;
  23        unsigned long child_loc_map[32];
  24};
  25
  26#define IXGBE_MAX_HW_ENTRIES 2045
  27
  28static inline int ixgbe_mat_prgm_sip(struct ixgbe_fdir_filter *input,
  29                                     union ixgbe_atr_input *mask,
  30                                     u32 val, u32 m)
  31{
  32        input->filter.formatted.src_ip[0] = (__force __be32)val;
  33        mask->formatted.src_ip[0] = (__force __be32)m;
  34        return 0;
  35}
  36
  37static inline int ixgbe_mat_prgm_dip(struct ixgbe_fdir_filter *input,
  38                                     union ixgbe_atr_input *mask,
  39                                     u32 val, u32 m)
  40{
  41        input->filter.formatted.dst_ip[0] = (__force __be32)val;
  42        mask->formatted.dst_ip[0] = (__force __be32)m;
  43        return 0;
  44}
  45
  46static struct ixgbe_mat_field ixgbe_ipv4_fields[] = {
  47        { .off = 12, .val = ixgbe_mat_prgm_sip,
  48          .type = IXGBE_ATR_FLOW_TYPE_IPV4},
  49        { .off = 16, .val = ixgbe_mat_prgm_dip,
  50          .type = IXGBE_ATR_FLOW_TYPE_IPV4},
  51        { .val = NULL } /* terminal node */
  52};
  53
  54static inline int ixgbe_mat_prgm_ports(struct ixgbe_fdir_filter *input,
  55                                       union ixgbe_atr_input *mask,
  56                                       u32 val, u32 m)
  57{
  58        input->filter.formatted.src_port = (__force __be16)(val & 0xffff);
  59        mask->formatted.src_port = (__force __be16)(m & 0xffff);
  60        input->filter.formatted.dst_port = (__force __be16)(val >> 16);
  61        mask->formatted.dst_port = (__force __be16)(m >> 16);
  62
  63        return 0;
  64};
  65
  66static struct ixgbe_mat_field ixgbe_tcp_fields[] = {
  67        {.off = 0, .val = ixgbe_mat_prgm_ports,
  68         .type = IXGBE_ATR_FLOW_TYPE_TCPV4},
  69        { .val = NULL } /* terminal node */
  70};
  71
  72static struct ixgbe_mat_field ixgbe_udp_fields[] = {
  73        {.off = 0, .val = ixgbe_mat_prgm_ports,
  74         .type = IXGBE_ATR_FLOW_TYPE_UDPV4},
  75        { .val = NULL } /* terminal node */
  76};
  77
  78struct ixgbe_nexthdr {
  79        /* offset, shift, and mask of position to next header */
  80        unsigned int o;
  81        u32 s;
  82        u32 m;
  83        /* match criteria to make this jump*/
  84        unsigned int off;
  85        u32 val;
  86        u32 mask;
  87        /* location of jump to make */
  88        struct ixgbe_mat_field *jump;
  89};
  90
  91static struct ixgbe_nexthdr ixgbe_ipv4_jumps[] = {
  92        { .o = 0, .s = 6, .m = 0xf,
  93          .off = 8, .val = 0x600, .mask = 0xff00, .jump = ixgbe_tcp_fields},
  94        { .o = 0, .s = 6, .m = 0xf,
  95          .off = 8, .val = 0x1100, .mask = 0xff00, .jump = ixgbe_udp_fields},
  96        { .jump = NULL } /* terminal node */
  97};
  98#endif /* _IXGBE_MODEL_H_ */
  99