drivers/net/igbvf/vf.h

   1 /*******************************************************************************
   2
   3   Intel(R) 82576 Virtual Function Linux driver
   4   Copyright(c) 2009 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 with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  24   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  25
  26 *******************************************************************************/
  27
  28 #ifndef _E1000_VF_H_
  29 #define _E1000_VF_H_
  30
  31 #include <linux/pci.h>
  32 #include <linux/delay.h>
  33 #include <linux/interrupt.h>
  34 #include <linux/if_ether.h>
  35
  36 #include "regs.h"
  37 #include "defines.h"
  38
  39 struct e1000_hw;
  40
  41 #define E1000_DEV_ID_82576_VF                 0x10CA
  42 #define E1000_REVISION_0 0
  43 #define E1000_REVISION_1 1
  44 #define E1000_REVISION_2 2
  45 #define E1000_REVISION_3 3
  46 #define E1000_REVISION_4 4
  47
  48 #define E1000_FUNC_0     0
  49 #define E1000_FUNC_1     1
  50
  51 /*
  52  * Receive Address Register Count
  53  * Number of high/low register pairs in the RAR.  The RAR (Receive Address
  54  * Registers) holds the directed and multicast addresses that we monitor.
  55  * These entries are also used for MAC-based filtering.
  56  */
  57 #define E1000_RAR_ENTRIES_VF      1
  58
  59 /* Receive Descriptor - Advanced */
  60 union e1000_adv_rx_desc {
  61         struct {
  62                 u64 pkt_addr;             /* Packet buffer address */
  63                 u64 hdr_addr;             /* Header buffer address */
  64         } read;
  65         struct {
  66                 struct {
  67                         union {
  68                                 u32 data;
  69                                 struct {
  70                                         u16 pkt_info; /* RSS/Packet type */
  71                                         u16 hdr_info; /* Split Header,
  72                                                        * hdr buffer length */
  73                                 } hs_rss;
  74                         } lo_dword;
  75                         union {
  76                                 u32 rss;          /* RSS Hash */
  77                                 struct {
  78                                         u16 ip_id;    /* IP id */
  79                                         u16 csum;     /* Packet Checksum */
  80                                 } csum_ip;
  81                         } hi_dword;
  82                 } lower;
  83                 struct {
  84                         u32 status_error;     /* ext status/error */
  85                         u16 length;           /* Packet length */
  86                         u16 vlan;             /* VLAN tag */
  87                 } upper;
  88         } wb;  /* writeback */
  89 };
  90
  91 #define E1000_RXDADV_HDRBUFLEN_MASK      0x7FE0
  92 #define E1000_RXDADV_HDRBUFLEN_SHIFT     5
  93
  94 /* Transmit Descriptor - Advanced */
  95 union e1000_adv_tx_desc {
  96         struct {
  97                 u64 buffer_addr;    /* Address of descriptor's data buf */
  98                 u32 cmd_type_len;
  99                 u32 olinfo_status;
 100         } read;
 101         struct {
 102                 u64 rsvd;       /* Reserved */
 103                 u32 nxtseq_seed;
 104                 u32 status;
 105         } wb;
 106 };
 107
 108 /* Adv Transmit Descriptor Config Masks */
 109 #define E1000_ADVTXD_DTYP_CTXT    0x00200000 /* Advanced Context Descriptor */
 110 #define E1000_ADVTXD_DTYP_DATA    0x00300000 /* Advanced Data Descriptor */
 111 #define E1000_ADVTXD_DCMD_EOP     0x01000000 /* End of Packet */
 112 #define E1000_ADVTXD_DCMD_IFCS    0x02000000 /* Insert FCS (Ethernet CRC) */
 113 #define E1000_ADVTXD_DCMD_RS      0x08000000 /* Report Status */
 114 #define E1000_ADVTXD_DCMD_DEXT    0x20000000 /* Descriptor extension (1=Adv) */
 115 #define E1000_ADVTXD_DCMD_VLE     0x40000000 /* VLAN pkt enable */
 116 #define E1000_ADVTXD_DCMD_TSE     0x80000000 /* TCP Seg enable */
 117 #define E1000_ADVTXD_PAYLEN_SHIFT    14 /* Adv desc PAYLEN shift */
 118
 119 /* Context descriptors */
 120 struct e1000_adv_tx_context_desc {
 121         u32 vlan_macip_lens;
 122         u32 seqnum_seed;
 123         u32 type_tucmd_mlhl;
 124         u32 mss_l4len_idx;
 125 };
 126
 127 #define E1000_ADVTXD_MACLEN_SHIFT    9  /* Adv ctxt desc mac len shift */
 128 #define E1000_ADVTXD_TUCMD_IPV4    0x00000400  /* IP Packet Type: 1=IPv4 */
 129 #define E1000_ADVTXD_TUCMD_L4T_TCP 0x00000800  /* L4 Packet TYPE of TCP */
 130 #define E1000_ADVTXD_L4LEN_SHIFT     8  /* Adv ctxt L4LEN shift */
 131 #define E1000_ADVTXD_MSS_SHIFT      16  /* Adv ctxt MSS shift */
 132
 133 enum e1000_mac_type {
 134         e1000_undefined = 0,
 135         e1000_vfadapt,
 136         e1000_num_macs  /* List is 1-based, so subtract 1 for true count. */
 137 };
 138
 139 struct e1000_vf_stats {
 140         u64 base_gprc;
 141         u64 base_gptc;
 142         u64 base_gorc;
 143         u64 base_gotc;
 144         u64 base_mprc;
 145         u64 base_gotlbc;
 146         u64 base_gptlbc;
 147         u64 base_gorlbc;
 148         u64 base_gprlbc;
 149
 150         u32 last_gprc;
 151         u32 last_gptc;
 152         u32 last_gorc;
 153         u32 last_gotc;
 154         u32 last_mprc;
 155         u32 last_gotlbc;
 156         u32 last_gptlbc;
 157         u32 last_gorlbc;
 158         u32 last_gprlbc;
 159
 160         u64 gprc;
 161         u64 gptc;
 162         u64 gorc;
 163         u64 gotc;
 164         u64 mprc;
 165         u64 gotlbc;
 166         u64 gptlbc;
 167         u64 gorlbc;
 168         u64 gprlbc;
 169 };
 170
 171 #include "mbx.h"
 172
 173 struct e1000_mac_operations {
 174         /* Function pointers for the MAC. */
 175         s32  (*init_params)(struct e1000_hw *);
 176         s32  (*check_for_link)(struct e1000_hw *);
 177         void (*clear_vfta)(struct e1000_hw *);
 178         s32  (*get_bus_info)(struct e1000_hw *);
 179         s32  (*get_link_up_info)(struct e1000_hw *, u16 *, u16 *);
 180         void (*update_mc_addr_list)(struct e1000_hw *, u8 *, u32, u32, u32);
 181         s32  (*reset_hw)(struct e1000_hw *);
 182         s32  (*init_hw)(struct e1000_hw *);
 183         s32  (*setup_link)(struct e1000_hw *);
 184         void (*write_vfta)(struct e1000_hw *, u32, u32);
 185         void (*mta_set)(struct e1000_hw *, u32);
 186         void (*rar_set)(struct e1000_hw *, u8*, u32);
 187         s32  (*read_mac_addr)(struct e1000_hw *);
 188         s32  (*set_vfta)(struct e1000_hw *, u16, bool);
 189 };
 190
 191 struct e1000_mac_info {
 192         struct e1000_mac_operations ops;
 193         u8 addr[6];
 194         u8 perm_addr[6];
 195
 196         enum e1000_mac_type type;
 197
 198         u16 mta_reg_count;
 199         u16 rar_entry_count;
 200
 201         bool get_link_status;
 202 };
 203
 204 struct e1000_mbx_operations {
 205         s32 (*init_params)(struct e1000_hw *hw);
 206         s32 (*read)(struct e1000_hw *, u32 *, u16);
 207         s32 (*write)(struct e1000_hw *, u32 *, u16);
 208         s32 (*read_posted)(struct e1000_hw *, u32 *, u16);
 209         s32 (*write_posted)(struct e1000_hw *, u32 *, u16);
 210         s32 (*check_for_msg)(struct e1000_hw *);
 211         s32 (*check_for_ack)(struct e1000_hw *);
 212         s32 (*check_for_rst)(struct e1000_hw *);
 213 };
 214
 215 struct e1000_mbx_stats {
 216         u32 msgs_tx;
 217         u32 msgs_rx;
 218
 219         u32 acks;
 220         u32 reqs;
 221         u32 rsts;
 222 };
 223
 224 struct e1000_mbx_info {
 225         struct e1000_mbx_operations ops;
 226         struct e1000_mbx_stats stats;
 227         u32 timeout;
 228         u32 usec_delay;
 229         u16 size;
 230 };
 231
 232 struct e1000_dev_spec_vf {
 233         u32 vf_number;
 234         u32 v2p_mailbox;
 235 };
 236
 237 struct e1000_hw {
 238         void *back;
 239
 240         u8 __iomem *hw_addr;
 241         u8 __iomem *flash_address;
 242         unsigned long io_base;
 243
 244         struct e1000_mac_info  mac;
 245         struct e1000_mbx_info mbx;
 246
 247         union {
 248                 struct e1000_dev_spec_vf vf;
 249         } dev_spec;
 250
 251         u16 device_id;
 252         u16 subsystem_vendor_id;
 253         u16 subsystem_device_id;
 254         u16 vendor_id;
 255
 256         u8  revision_id;
 257 };
 258
 259 /* These functions must be implemented by drivers */
 260 void e1000_rlpml_set_vf(struct e1000_hw *, u16);
 261 void e1000_init_function_pointers_vf(struct e1000_hw *hw);
 262
 263
 264 #endif /* _E1000_VF_H_ */