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