drivers/net/ethernet/intel/ixgbe/ixgbe_model.h

   1 /*******************************************************************************
   2  *
   3  * Intel 10 Gigabit PCI Express Linux drive
   4  * Copyright(c) 2016 Intel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * The full GNU General Public License is included in this distribution in
  19  * the file called "COPYING".
  20  *
  21  * Contact Information:
  22  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  ******************************************************************************/
  26
  27 #ifndef _IXGBE_MODEL_H_
  28 #define _IXGBE_MODEL_H_
  29
  30 #include "ixgbe.h"
  31 #include "ixgbe_type.h"
  32
  33 struct ixgbe_mat_field {
  34         unsigned int off;
  35         int (*val)(struct ixgbe_fdir_filter *input,
  36                    union ixgbe_atr_input *mask,
  37                    u32 val, u32 m);
  38         unsigned int type;
  39 };
  40
  41 struct ixgbe_jump_table {
  42         struct ixgbe_mat_field *mat;
  43         struct ixgbe_fdir_filter *input;
  44         union ixgbe_atr_input *mask;
  45         u32 link_hdl;
  46         unsigned long child_loc_map[32];
  47 };
  48
  49 #define IXGBE_MAX_HW_ENTRIES 2045
  50
  51 static inline int ixgbe_mat_prgm_sip(struct ixgbe_fdir_filter *input,
  52                                      union ixgbe_atr_input *mask,
  53                                      u32 val, u32 m)
  54 {
  55         input->filter.formatted.src_ip[0] = val;
  56         mask->formatted.src_ip[0] = m;
  57         return 0;
  58 }
  59
  60 static inline int ixgbe_mat_prgm_dip(struct ixgbe_fdir_filter *input,
  61                                      union ixgbe_atr_input *mask,
  62                                      u32 val, u32 m)
  63 {
  64         input->filter.formatted.dst_ip[0] = val;
  65         mask->formatted.dst_ip[0] = m;
  66         return 0;
  67 }
  68
  69 static struct ixgbe_mat_field ixgbe_ipv4_fields[] = {
  70         { .off = 12, .val = ixgbe_mat_prgm_sip,
  71           .type = IXGBE_ATR_FLOW_TYPE_IPV4},
  72         { .off = 16, .val = ixgbe_mat_prgm_dip,
  73           .type = IXGBE_ATR_FLOW_TYPE_IPV4},
  74         { .val = NULL } /* terminal node */
  75 };
  76
  77 static inline int ixgbe_mat_prgm_ports(struct ixgbe_fdir_filter *input,
  78                                        union ixgbe_atr_input *mask,
  79                                        u32 val, u32 m)
  80 {
  81         input->filter.formatted.src_port = val & 0xffff;
  82         mask->formatted.src_port = m & 0xffff;
  83         input->filter.formatted.dst_port = val >> 16;
  84         mask->formatted.dst_port = m >> 16;
  85
  86         return 0;
  87 };
  88
  89 static struct ixgbe_mat_field ixgbe_tcp_fields[] = {
  90         {.off = 0, .val = ixgbe_mat_prgm_ports,
  91          .type = IXGBE_ATR_FLOW_TYPE_TCPV4},
  92         { .val = NULL } /* terminal node */
  93 };
  94
  95 static struct ixgbe_mat_field ixgbe_udp_fields[] = {
  96         {.off = 0, .val = ixgbe_mat_prgm_ports,
  97          .type = IXGBE_ATR_FLOW_TYPE_UDPV4},
  98         { .val = NULL } /* terminal node */
  99 };
 100
 101 struct ixgbe_nexthdr {
 102         /* offset, shift, and mask of position to next header */
 103         unsigned int o;
 104         u32 s;
 105         u32 m;
 106         /* match criteria to make this jump*/
 107         unsigned int off;
 108         u32 val;
 109         u32 mask;
 110         /* location of jump to make */
 111         struct ixgbe_mat_field *jump;
 112 };
 113
 114 static struct ixgbe_nexthdr ixgbe_ipv4_jumps[] = {
 115         { .o = 0, .s = 6, .m = 0xf,
 116           .off = 8, .val = 0x600, .mask = 0xff00, .jump = ixgbe_tcp_fields},
 117         { .o = 0, .s = 6, .m = 0xf,
 118           .off = 8, .val = 0x1100, .mask = 0xff00, .jump = ixgbe_udp_fields},
 119         { .jump = NULL } /* terminal node */
 120 };
 121 #endif /* _IXGBE_MODEL_H_ */