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 };
  46
  47 static inline int ixgbe_mat_prgm_sip(struct ixgbe_fdir_filter *input,
  48                                      union ixgbe_atr_input *mask,
  49                                      u32 val, u32 m)
  50 {
  51         input->filter.formatted.src_ip[0] = val;
  52         mask->formatted.src_ip[0] = m;
  53         return 0;
  54 }
  55
  56 static inline int ixgbe_mat_prgm_dip(struct ixgbe_fdir_filter *input,
  57                                      union ixgbe_atr_input *mask,
  58                                      u32 val, u32 m)
  59 {
  60         input->filter.formatted.dst_ip[0] = val;
  61         mask->formatted.dst_ip[0] = m;
  62         return 0;
  63 }
  64
  65 static struct ixgbe_mat_field ixgbe_ipv4_fields[] = {
  66         { .off = 12, .val = ixgbe_mat_prgm_sip,
  67           .type = IXGBE_ATR_FLOW_TYPE_IPV4},
  68         { .off = 16, .val = ixgbe_mat_prgm_dip,
  69           .type = IXGBE_ATR_FLOW_TYPE_IPV4},
  70         { .val = NULL } /* terminal node */
  71 };
  72
  73 static inline int ixgbe_mat_prgm_ports(struct ixgbe_fdir_filter *input,
  74                                        union ixgbe_atr_input *mask,
  75                                        u32 val, u32 m)
  76 {
  77         input->filter.formatted.src_port = val & 0xffff;
  78         mask->formatted.src_port = m & 0xffff;
  79         input->filter.formatted.dst_port = val >> 16;
  80         mask->formatted.dst_port = m >> 16;
  81
  82         return 0;
  83 };
  84
  85 static struct ixgbe_mat_field ixgbe_tcp_fields[] = {
  86         {.off = 0, .val = ixgbe_mat_prgm_ports,
  87          .type = IXGBE_ATR_FLOW_TYPE_TCPV4},
  88         { .val = NULL } /* terminal node */
  89 };
  90
  91 static struct ixgbe_mat_field ixgbe_udp_fields[] = {
  92         {.off = 0, .val = ixgbe_mat_prgm_ports,
  93          .type = IXGBE_ATR_FLOW_TYPE_UDPV4},
  94         { .val = NULL } /* terminal node */
  95 };
  96
  97 struct ixgbe_nexthdr {
  98         /* offset, shift, and mask of position to next header */
  99         unsigned int o;
 100         u32 s;
 101         u32 m;
 102         /* match criteria to make this jump*/
 103         unsigned int off;
 104         u32 val;
 105         u32 mask;
 106         /* location of jump to make */
 107         struct ixgbe_mat_field *jump;
 108 };
 109
 110 static struct ixgbe_nexthdr ixgbe_ipv4_jumps[] = {
 111         { .o = 0, .s = 6, .m = 0xf,
 112           .off = 8, .val = 0x600, .mask = 0xff00, .jump = ixgbe_tcp_fields},
 113         { .o = 0, .s = 6, .m = 0xf,
 114           .off = 8, .val = 0x1100, .mask = 0xff00, .jump = ixgbe_udp_fields},
 115         { .jump = NULL } /* terminal node */
 116 };
 117 #endif /* _IXGBE_MODEL_H_ */