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         unsigned int mask;
  36         int (*val)(struct ixgbe_fdir_filter *input,
  37                    union ixgbe_atr_input *mask,
  38                    u32 val, u32 m);
  39         unsigned int type;
  40 };
  41
  42 static inline int ixgbe_mat_prgm_sip(struct ixgbe_fdir_filter *input,
  43                                      union ixgbe_atr_input *mask,
  44                                      u32 val, u32 m)
  45 {
  46         input->filter.formatted.src_ip[0] = val;
  47         mask->formatted.src_ip[0] = m;
  48         return 0;
  49 }
  50
  51 static inline int ixgbe_mat_prgm_dip(struct ixgbe_fdir_filter *input,
  52                                      union ixgbe_atr_input *mask,
  53                                      u32 val, u32 m)
  54 {
  55         input->filter.formatted.dst_ip[0] = val;
  56         mask->formatted.dst_ip[0] = m;
  57         return 0;
  58 }
  59
  60 static struct ixgbe_mat_field ixgbe_ipv4_fields[] = {
  61         { .off = 12, .mask = -1, .val = ixgbe_mat_prgm_sip,
  62           .type = IXGBE_ATR_FLOW_TYPE_IPV4},
  63         { .off = 16, .mask = -1, .val = ixgbe_mat_prgm_dip,
  64           .type = IXGBE_ATR_FLOW_TYPE_IPV4},
  65         { .val = NULL } /* terminal node */
  66 };
  67
  68 static inline int ixgbe_mat_prgm_sport(struct ixgbe_fdir_filter *input,
  69                                        union ixgbe_atr_input *mask,
  70                                        u32 val, u32 m)
  71 {
  72         input->filter.formatted.src_port = val & 0xffff;
  73         mask->formatted.src_port = m & 0xffff;
  74         return 0;
  75 };
  76
  77 static inline int ixgbe_mat_prgm_dport(struct ixgbe_fdir_filter *input,
  78                                        union ixgbe_atr_input *mask,
  79                                        u32 val, u32 m)
  80 {
  81         input->filter.formatted.dst_port = val & 0xffff;
  82         mask->formatted.dst_port = m & 0xffff;
  83         return 0;
  84 };
  85
  86 static struct ixgbe_mat_field ixgbe_tcp_fields[] = {
  87         {.off = 0, .mask = 0xffff, .val = ixgbe_mat_prgm_sport,
  88          .type = IXGBE_ATR_FLOW_TYPE_TCPV4},
  89         {.off = 2, .mask = 0xffff, .val = ixgbe_mat_prgm_dport,
  90          .type = IXGBE_ATR_FLOW_TYPE_TCPV4},
  91         { .val = NULL } /* terminal node */
  92 };
  93
  94 struct ixgbe_nexthdr {
  95         /* offset, shift, and mask of position to next header */
  96         unsigned int o;
  97         u32 s;
  98         u32 m;
  99         /* match criteria to make this jump*/
 100         unsigned int off;
 101         u32 val;
 102         u32 mask;
 103         /* location of jump to make */
 104         struct ixgbe_mat_field *jump;
 105 };
 106
 107 static struct ixgbe_nexthdr ixgbe_ipv4_jumps[] = {
 108         { .o = 0, .s = 6, .m = 0xf,
 109           .off = 8, .val = 0x600, .mask = 0xff00, .jump = ixgbe_tcp_fields},
 110         { .jump = NULL } /* terminal node */
 111 };
 112 #endif /* _IXGBE_MODEL_H_ */