drivers/net/ethernet/atheros/atl1c/atl1c.h

   1 /*
   2  * Copyright(c) 2008 - 2009 Atheros Corporation. All rights reserved.
   3  *
   4  * Derived from Intel e1000 driver
   5  * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the Free
   9  * Software Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program; if not, write to the Free Software Foundation, Inc., 59
  19  * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20  */
  21
  22 #ifndef _ATL1C_H_
  23 #define _ATL1C_H_
  24
  25 #include <linux/interrupt.h>
  26 #include <linux/types.h>
  27 #include <linux/errno.h>
  28 #include <linux/module.h>
  29 #include <linux/pci.h>
  30 #include <linux/netdevice.h>
  31 #include <linux/etherdevice.h>
  32 #include <linux/skbuff.h>
  33 #include <linux/ioport.h>
  34 #include <linux/slab.h>
  35 #include <linux/list.h>
  36 #include <linux/delay.h>
  37 #include <linux/sched.h>
  38 #include <linux/in.h>
  39 #include <linux/ip.h>
  40 #include <linux/ipv6.h>
  41 #include <linux/udp.h>
  42 #include <linux/mii.h>
  43 #include <linux/io.h>
  44 #include <linux/vmalloc.h>
  45 #include <linux/pagemap.h>
  46 #include <linux/tcp.h>
  47 #include <linux/ethtool.h>
  48 #include <linux/if_vlan.h>
  49 #include <linux/workqueue.h>
  50 #include <net/checksum.h>
  51 #include <net/ip6_checksum.h>
  52
  53 #include "atl1c_hw.h"
  54
  55 /* Wake Up Filter Control */
  56 #define AT_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */
  57 #define AT_WUFC_MAG  0x00000002 /* Magic Packet Wakeup Enable */
  58 #define AT_WUFC_EX   0x00000004 /* Directed Exact Wakeup Enable */
  59 #define AT_WUFC_MC   0x00000008 /* Multicast Wakeup Enable */
  60 #define AT_WUFC_BC   0x00000010 /* Broadcast Wakeup Enable */
  61
  62 #define AT_VLAN_TO_TAG(_vlan, _tag)        \
  63         _tag =  ((((_vlan) >> 8) & 0xFF)  |\
  64                  (((_vlan) & 0xFF) << 8))
  65
  66 #define AT_TAG_TO_VLAN(_tag, _vlan)      \
  67         _vlan = ((((_tag) >> 8) & 0xFF) |\
  68                 (((_tag) & 0xFF) << 8))
  69
  70 #define SPEED_0            0xffff
  71 #define HALF_DUPLEX        1
  72 #define FULL_DUPLEX        2
  73
  74 #define AT_RX_BUF_SIZE          (ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN)
  75 #define MAX_JUMBO_FRAME_SIZE    (6*1024)
  76
  77 #define AT_MAX_RECEIVE_QUEUE    4
  78 #define AT_DEF_RECEIVE_QUEUE    1
  79 #define AT_MAX_TRANSMIT_QUEUE   2
  80
  81 #define AT_DMA_HI_ADDR_MASK     0xffffffff00000000ULL
  82 #define AT_DMA_LO_ADDR_MASK     0x00000000ffffffffULL
  83
  84 #define AT_TX_WATCHDOG  (5 * HZ)
  85 #define AT_MAX_INT_WORK         5
  86 #define AT_TWSI_EEPROM_TIMEOUT  100
  87 #define AT_HW_MAX_IDLE_DELAY    10
  88 #define AT_SUSPEND_LINK_TIMEOUT 100
  89
  90 #define AT_ASPM_L0S_TIMER       6
  91 #define AT_ASPM_L1_TIMER        12
  92 #define AT_LCKDET_TIMER         12
  93
  94 #define ATL1C_PCIE_L0S_L1_DISABLE       0x01
  95 #define ATL1C_PCIE_PHY_RESET            0x02
  96
  97 #define ATL1C_ASPM_L0s_ENABLE           0x0001
  98 #define ATL1C_ASPM_L1_ENABLE            0x0002
  99
 100 #define AT_REGS_LEN     (74 * sizeof(u32))
 101 #define AT_EEPROM_LEN   512
 102
 103 #define ATL1C_GET_DESC(R, i, type)      (&(((type *)((R)->desc))[i]))
 104 #define ATL1C_RFD_DESC(R, i)    ATL1C_GET_DESC(R, i, struct atl1c_rx_free_desc)
 105 #define ATL1C_TPD_DESC(R, i)    ATL1C_GET_DESC(R, i, struct atl1c_tpd_desc)
 106 #define ATL1C_RRD_DESC(R, i)    ATL1C_GET_DESC(R, i, struct atl1c_recv_ret_status)
 107
 108 /* tpd word 1 bit 0:7 General Checksum task offload */
 109 #define TPD_L4HDR_OFFSET_MASK   0x00FF
 110 #define TPD_L4HDR_OFFSET_SHIFT  0
 111
 112 /* tpd word 1 bit 0:7 Large Send task offload (IPv4/IPV6) */
 113 #define TPD_TCPHDR_OFFSET_MASK  0x00FF
 114 #define TPD_TCPHDR_OFFSET_SHIFT 0
 115
 116 /* tpd word 1 bit 0:7 Custom Checksum task offload */
 117 #define TPD_PLOADOFFSET_MASK    0x00FF
 118 #define TPD_PLOADOFFSET_SHIFT   0
 119
 120 /* tpd word 1 bit 8:17 */
 121 #define TPD_CCSUM_EN_MASK       0x0001
 122 #define TPD_CCSUM_EN_SHIFT      8
 123 #define TPD_IP_CSUM_MASK        0x0001
 124 #define TPD_IP_CSUM_SHIFT       9
 125 #define TPD_TCP_CSUM_MASK       0x0001
 126 #define TPD_TCP_CSUM_SHIFT      10
 127 #define TPD_UDP_CSUM_MASK       0x0001
 128 #define TPD_UDP_CSUM_SHIFT      11
 129 #define TPD_LSO_EN_MASK         0x0001  /* TCP Large Send Offload */
 130 #define TPD_LSO_EN_SHIFT        12
 131 #define TPD_LSO_VER_MASK        0x0001
 132 #define TPD_LSO_VER_SHIFT       13      /* 0 : ipv4; 1 : ipv4/ipv6 */
 133 #define TPD_CON_VTAG_MASK       0x0001
 134 #define TPD_CON_VTAG_SHIFT      14
 135 #define TPD_INS_VTAG_MASK       0x0001
 136 #define TPD_INS_VTAG_SHIFT      15
 137 #define TPD_IPV4_PACKET_MASK    0x0001  /* valid when LSO VER  is 1 */
 138 #define TPD_IPV4_PACKET_SHIFT   16
 139 #define TPD_ETH_TYPE_MASK       0x0001
 140 #define TPD_ETH_TYPE_SHIFT      17      /* 0 : 802.3 frame; 1 : Ethernet */
 141
 142 /* tpd word 18:25 Custom Checksum task offload */
 143 #define TPD_CCSUM_OFFSET_MASK   0x00FF
 144 #define TPD_CCSUM_OFFSET_SHIFT  18
 145 #define TPD_CCSUM_EPAD_MASK     0x0001
 146 #define TPD_CCSUM_EPAD_SHIFT    30
 147
 148 /* tpd word 18:30 Large Send task offload (IPv4/IPV6) */
 149 #define TPD_MSS_MASK            0x1FFF
 150 #define TPD_MSS_SHIFT           18
 151
 152 #define TPD_EOP_MASK            0x0001
 153 #define TPD_EOP_SHIFT           31
 154
 155 struct atl1c_tpd_desc {
 156         __le16  buffer_len; /* include 4-byte CRC */
 157         __le16  vlan_tag;
 158         __le32  word1;
 159         __le64  buffer_addr;
 160 };
 161
 162 struct atl1c_tpd_ext_desc {
 163         u32 reservd_0;
 164         __le32 word1;
 165         __le32 pkt_len;
 166         u32 reservd_1;
 167 };
 168 /* rrs word 0 bit 0:31 */
 169 #define RRS_RX_CSUM_MASK        0xFFFF
 170 #define RRS_RX_CSUM_SHIFT       0
 171 #define RRS_RX_RFD_CNT_MASK     0x000F
 172 #define RRS_RX_RFD_CNT_SHIFT    16
 173 #define RRS_RX_RFD_INDEX_MASK   0x0FFF
 174 #define RRS_RX_RFD_INDEX_SHIFT  20
 175
 176 /* rrs flag bit 0:16 */
 177 #define RRS_HEAD_LEN_MASK       0x00FF
 178 #define RRS_HEAD_LEN_SHIFT      0
 179 #define RRS_HDS_TYPE_MASK       0x0003
 180 #define RRS_HDS_TYPE_SHIFT      8
 181 #define RRS_CPU_NUM_MASK        0x0003
 182 #define RRS_CPU_NUM_SHIFT       10
 183 #define RRS_HASH_FLG_MASK       0x000F
 184 #define RRS_HASH_FLG_SHIFT      12
 185
 186 #define RRS_HDS_TYPE_HEAD       1
 187 #define RRS_HDS_TYPE_DATA       2
 188
 189 #define RRS_IS_NO_HDS_TYPE(flag) \
 190         ((((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK) == 0)
 191
 192 #define RRS_IS_HDS_HEAD(flag) \
 193         ((((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK) == \
 194                         RRS_HDS_TYPE_HEAD)
 195
 196 #define RRS_IS_HDS_DATA(flag) \
 197         ((((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK) == \
 198                         RRS_HDS_TYPE_DATA)
 199
 200 /* rrs word 3 bit 0:31 */
 201 #define RRS_PKT_SIZE_MASK       0x3FFF
 202 #define RRS_PKT_SIZE_SHIFT      0
 203 #define RRS_ERR_L4_CSUM_MASK    0x0001
 204 #define RRS_ERR_L4_CSUM_SHIFT   14
 205 #define RRS_ERR_IP_CSUM_MASK    0x0001
 206 #define RRS_ERR_IP_CSUM_SHIFT   15
 207 #define RRS_VLAN_INS_MASK       0x0001
 208 #define RRS_VLAN_INS_SHIFT      16
 209 #define RRS_PROT_ID_MASK        0x0007
 210 #define RRS_PROT_ID_SHIFT       17
 211 #define RRS_RX_ERR_SUM_MASK     0x0001
 212 #define RRS_RX_ERR_SUM_SHIFT    20
 213 #define RRS_RX_ERR_CRC_MASK     0x0001
 214 #define RRS_RX_ERR_CRC_SHIFT    21
 215 #define RRS_RX_ERR_FAE_MASK     0x0001
 216 #define RRS_RX_ERR_FAE_SHIFT    22
 217 #define RRS_RX_ERR_TRUNC_MASK   0x0001
 218 #define RRS_RX_ERR_TRUNC_SHIFT  23
 219 #define RRS_RX_ERR_RUNC_MASK    0x0001
 220 #define RRS_RX_ERR_RUNC_SHIFT   24
 221 #define RRS_RX_ERR_ICMP_MASK    0x0001
 222 #define RRS_RX_ERR_ICMP_SHIFT   25
 223 #define RRS_PACKET_BCAST_MASK   0x0001
 224 #define RRS_PACKET_BCAST_SHIFT  26
 225 #define RRS_PACKET_MCAST_MASK   0x0001
 226 #define RRS_PACKET_MCAST_SHIFT  27
 227 #define RRS_PACKET_TYPE_MASK    0x0001
 228 #define RRS_PACKET_TYPE_SHIFT   28
 229 #define RRS_FIFO_FULL_MASK      0x0001
 230 #define RRS_FIFO_FULL_SHIFT     29
 231 #define RRS_802_3_LEN_ERR_MASK  0x0001
 232 #define RRS_802_3_LEN_ERR_SHIFT 30
 233 #define RRS_RXD_UPDATED_MASK    0x0001
 234 #define RRS_RXD_UPDATED_SHIFT   31
 235
 236 #define RRS_ERR_L4_CSUM         0x00004000
 237 #define RRS_ERR_IP_CSUM         0x00008000
 238 #define RRS_VLAN_INS            0x00010000
 239 #define RRS_RX_ERR_SUM          0x00100000
 240 #define RRS_RX_ERR_CRC          0x00200000
 241 #define RRS_802_3_LEN_ERR       0x40000000
 242 #define RRS_RXD_UPDATED         0x80000000
 243
 244 #define RRS_PACKET_TYPE_802_3   1
 245 #define RRS_PACKET_TYPE_ETH     0
 246 #define RRS_PACKET_IS_ETH(word) \
 247         ((((word) >> RRS_PACKET_TYPE_SHIFT) & RRS_PACKET_TYPE_MASK) == \
 248                         RRS_PACKET_TYPE_ETH)
 249 #define RRS_RXD_IS_VALID(word) \
 250         ((((word) >> RRS_RXD_UPDATED_SHIFT) & RRS_RXD_UPDATED_MASK) == 1)
 251
 252 #define RRS_PACKET_PROT_IS_IPV4_ONLY(word) \
 253         ((((word) >> RRS_PROT_ID_SHIFT) & RRS_PROT_ID_MASK) == 1)
 254 #define RRS_PACKET_PROT_IS_IPV6_ONLY(word) \
 255         ((((word) >> RRS_PROT_ID_SHIFT) & RRS_PROT_ID_MASK) == 6)
 256
 257 struct atl1c_recv_ret_status {
 258         __le32  word0;
 259         __le32  rss_hash;
 260         __le16  vlan_tag;
 261         __le16  flag;
 262         __le32  word3;
 263 };
 264
 265 /* RFD descriptor */
 266 struct atl1c_rx_free_desc {
 267         __le64  buffer_addr;
 268 };
 269
 270 /* DMA Order Settings */
 271 enum atl1c_dma_order {
 272         atl1c_dma_ord_in = 1,
 273         atl1c_dma_ord_enh = 2,
 274         atl1c_dma_ord_out = 4
 275 };
 276
 277 enum atl1c_dma_rcb {
 278         atl1c_rcb_64 = 0,
 279         atl1c_rcb_128 = 1
 280 };
 281
 282 enum atl1c_mac_speed {
 283         atl1c_mac_speed_0 = 0,
 284         atl1c_mac_speed_10_100 = 1,
 285         atl1c_mac_speed_1000 = 2
 286 };
 287
 288 enum atl1c_dma_req_block {
 289         atl1c_dma_req_128 = 0,
 290         atl1c_dma_req_256 = 1,
 291         atl1c_dma_req_512 = 2,
 292         atl1c_dma_req_1024 = 3,
 293         atl1c_dma_req_2048 = 4,
 294         atl1c_dma_req_4096 = 5
 295 };
 296
 297
 298 enum atl1c_nic_type {
 299         athr_l1c = 0,
 300         athr_l2c = 1,
 301         athr_l2c_b,
 302         athr_l2c_b2,
 303         athr_l1d,
 304         athr_l1d_2,
 305 };
 306
 307 enum atl1c_trans_queue {
 308         atl1c_trans_normal = 0,
 309         atl1c_trans_high = 1
 310 };
 311
 312 struct atl1c_hw_stats {
 313         /* rx */
 314         unsigned long rx_ok;            /* The number of good packet received. */
 315         unsigned long rx_bcast;         /* The number of good broadcast packet received. */
 316         unsigned long rx_mcast;         /* The number of good multicast packet received. */
 317         unsigned long rx_pause;         /* The number of Pause packet received. */
 318         unsigned long rx_ctrl;          /* The number of Control packet received other than Pause frame. */
 319         unsigned long rx_fcs_err;       /* The number of packets with bad FCS. */
 320         unsigned long rx_len_err;       /* The number of packets with mismatch of length field and actual size. */
 321         unsigned long rx_byte_cnt;      /* The number of bytes of good packet received. FCS is NOT included. */
 322         unsigned long rx_runt;          /* The number of packets received that are less than 64 byte long and with good FCS. */
 323         unsigned long rx_frag;          /* The number of packets received that are less than 64 byte long and with bad FCS. */
 324         unsigned long rx_sz_64;         /* The number of good and bad packets received that are 64 byte long. */
 325         unsigned long rx_sz_65_127;     /* The number of good and bad packets received that are between 65 and 127-byte long. */
 326         unsigned long rx_sz_128_255;    /* The number of good and bad packets received that are between 128 and 255-byte long. */
 327         unsigned long rx_sz_256_511;    /* The number of good and bad packets received that are between 256 and 511-byte long. */
 328         unsigned long rx_sz_512_1023;   /* The number of good and bad packets received that are between 512 and 1023-byte long. */
 329         unsigned long rx_sz_1024_1518;  /* The number of good and bad packets received that are between 1024 and 1518-byte long. */
 330         unsigned long rx_sz_1519_max;   /* The number of good and bad packets received that are between 1519-byte and MTU. */
 331         unsigned long rx_sz_ov;         /* The number of good and bad packets received that are more than MTU size truncated by Selene. */
 332         unsigned long rx_rxf_ov;        /* The number of frame dropped due to occurrence of RX FIFO overflow. */
 333         unsigned long rx_rrd_ov;        /* The number of frame dropped due to occurrence of RRD overflow. */
 334         unsigned long rx_align_err;     /* Alignment Error */
 335         unsigned long rx_bcast_byte_cnt; /* The byte count of broadcast packet received, excluding FCS. */
 336         unsigned long rx_mcast_byte_cnt; /* The byte count of multicast packet received, excluding FCS. */
 337         unsigned long rx_err_addr;      /* The number of packets dropped due to address filtering. */
 338
 339         /* tx */
 340         unsigned long tx_ok;            /* The number of good packet transmitted. */
 341         unsigned long tx_bcast;         /* The number of good broadcast packet transmitted. */
 342         unsigned long tx_mcast;         /* The number of good multicast packet transmitted. */
 343         unsigned long tx_pause;         /* The number of Pause packet transmitted. */
 344         unsigned long tx_exc_defer;     /* The number of packets transmitted with excessive deferral. */
 345         unsigned long tx_ctrl;          /* The number of packets transmitted is a control frame, excluding Pause frame. */
 346         unsigned long tx_defer;         /* The number of packets transmitted that is deferred. */
 347         unsigned long tx_byte_cnt;      /* The number of bytes of data transmitted. FCS is NOT included. */
 348         unsigned long tx_sz_64;         /* The number of good and bad packets transmitted that are 64 byte long. */
 349         unsigned long tx_sz_65_127;     /* The number of good and bad packets transmitted that are between 65 and 127-byte long. */
 350         unsigned long tx_sz_128_255;    /* The number of good and bad packets transmitted that are between 128 and 255-byte long. */
 351         unsigned long tx_sz_256_511;    /* The number of good and bad packets transmitted that are between 256 and 511-byte long. */
 352         unsigned long tx_sz_512_1023;   /* The number of good and bad packets transmitted that are between 512 and 1023-byte long. */
 353         unsigned long tx_sz_1024_1518;  /* The number of good and bad packets transmitted that are between 1024 and 1518-byte long. */
 354         unsigned long tx_sz_1519_max;   /* The number of good and bad packets transmitted that are between 1519-byte and MTU. */
 355         unsigned long tx_1_col;         /* The number of packets subsequently transmitted successfully with a single prior collision. */
 356         unsigned long tx_2_col;         /* The number of packets subsequently transmitted successfully with multiple prior collisions. */
 357         unsigned long tx_late_col;      /* The number of packets transmitted with late collisions. */
 358         unsigned long tx_abort_col;     /* The number of transmit packets aborted due to excessive collisions. */
 359         unsigned long tx_underrun;      /* The number of transmit packets aborted due to transmit FIFO underrun, or TRD FIFO underrun */
 360         unsigned long tx_rd_eop;        /* The number of times that read beyond the EOP into the next frame area when TRD was not written timely */
 361         unsigned long tx_len_err;       /* The number of transmit packets with length field does NOT match the actual frame size. */
 362         unsigned long tx_trunc;         /* The number of transmit packets truncated due to size exceeding MTU. */
 363         unsigned long tx_bcast_byte;    /* The byte count of broadcast packet transmitted, excluding FCS. */
 364         unsigned long tx_mcast_byte;    /* The byte count of multicast packet transmitted, excluding FCS. */
 365 };
 366
 367 struct atl1c_hw {
 368         u8 __iomem      *hw_addr;            /* inner register address */
 369         struct atl1c_adapter *adapter;
 370         enum atl1c_nic_type  nic_type;
 371         enum atl1c_dma_order dma_order;
 372         enum atl1c_dma_rcb   rcb_value;
 373         enum atl1c_dma_req_block dmar_block;
 374
 375         u16 device_id;
 376         u16 vendor_id;
 377         u16 subsystem_id;
 378         u16 subsystem_vendor_id;
 379         u8 revision_id;
 380         u16 phy_id1;
 381         u16 phy_id2;
 382
 383         u32 intr_mask;
 384
 385         u8 preamble_len;
 386         u16 max_frame_size;
 387         u16 min_frame_size;
 388
 389         enum atl1c_mac_speed mac_speed;
 390         bool mac_duplex;
 391         bool hibernate;
 392         u16 media_type;
 393 #define MEDIA_TYPE_AUTO_SENSOR  0
 394 #define MEDIA_TYPE_100M_FULL    1
 395 #define MEDIA_TYPE_100M_HALF    2
 396 #define MEDIA_TYPE_10M_FULL     3
 397 #define MEDIA_TYPE_10M_HALF     4
 398
 399         u16 autoneg_advertised;
 400         u16 mii_autoneg_adv_reg;
 401         u16 mii_1000t_ctrl_reg;
 402
 403         u16 tx_imt;     /* TX Interrupt Moderator timer ( 2us resolution) */
 404         u16 rx_imt;     /* RX Interrupt Moderator timer ( 2us resolution) */
 405         u16 ict;        /* Interrupt Clear timer (2us resolution) */
 406         u16 ctrl_flags;
 407 #define ATL1C_INTR_CLEAR_ON_READ        0x0001
 408 #define ATL1C_INTR_MODRT_ENABLE         0x0002
 409 #define ATL1C_CMB_ENABLE                0x0004
 410 #define ATL1C_SMB_ENABLE                0x0010
 411 #define ATL1C_TXQ_MODE_ENHANCE          0x0020
 412 #define ATL1C_RX_IPV6_CHKSUM            0x0040
 413 #define ATL1C_ASPM_L0S_SUPPORT          0x0080
 414 #define ATL1C_ASPM_L1_SUPPORT           0x0100
 415 #define ATL1C_ASPM_CTRL_MON             0x0200
 416 #define ATL1C_HIB_DISABLE               0x0400
 417 #define ATL1C_APS_MODE_ENABLE           0x0800
 418 #define ATL1C_LINK_EXT_SYNC             0x1000
 419 #define ATL1C_CLK_GATING_EN             0x2000
 420 #define ATL1C_FPGA_VERSION              0x8000
 421         u16 link_cap_flags;
 422 #define ATL1C_LINK_CAP_1000M            0x0001
 423         u32 smb_timer;
 424
 425         u16 rrd_thresh; /* Threshold of number of RRD produced to trigger
 426                           interrupt request */
 427         u16 tpd_thresh;
 428         u8 tpd_burst;   /* Number of TPD to prefetch in cache-aligned burst. */
 429         u8 rfd_burst;
 430         u32 base_cpu;
 431         u32 indirect_tab;
 432         u8 mac_addr[ETH_ALEN];
 433         u8 perm_mac_addr[ETH_ALEN];
 434
 435         bool phy_configured;
 436         bool re_autoneg;
 437         bool emi_ca;
 438         bool msi_lnkpatch;      /* link patch for specific platforms */
 439 };
 440
 441 /*
 442  * atl1c_ring_header represents a single, contiguous block of DMA space
 443  * mapped for the three descriptor rings (tpd, rfd, rrd) described below
 444  */
 445 struct atl1c_ring_header {
 446         void *desc;             /* virtual address */
 447         dma_addr_t dma;         /* physical address*/
 448         unsigned int size;      /* length in bytes */
 449 };
 450
 451 /*
 452  * atl1c_buffer is wrapper around a pointer to a socket buffer
 453  * so a DMA handle can be stored along with the skb
 454  */
 455 struct atl1c_buffer {
 456         struct sk_buff *skb;    /* socket buffer */
 457         u16 length;             /* rx buffer length */
 458         u16 flags;              /* information of buffer */
 459 #define ATL1C_BUFFER_FREE               0x0001
 460 #define ATL1C_BUFFER_BUSY               0x0002
 461 #define ATL1C_BUFFER_STATE_MASK         0x0003
 462
 463 #define ATL1C_PCIMAP_SINGLE             0x0004
 464 #define ATL1C_PCIMAP_PAGE               0x0008
 465 #define ATL1C_PCIMAP_TYPE_MASK          0x000C
 466
 467 #define ATL1C_PCIMAP_TODEVICE           0x0010
 468 #define ATL1C_PCIMAP_FROMDEVICE         0x0020
 469 #define ATL1C_PCIMAP_DIRECTION_MASK     0x0030
 470         dma_addr_t dma;
 471 };
 472
 473 #define ATL1C_SET_BUFFER_STATE(buff, state) do {        \
 474         ((buff)->flags) &= ~ATL1C_BUFFER_STATE_MASK;    \
 475         ((buff)->flags) |= (state);                     \
 476         } while (0)
 477
 478 #define ATL1C_SET_PCIMAP_TYPE(buff, type, direction) do {       \
 479         ((buff)->flags) &= ~ATL1C_PCIMAP_TYPE_MASK;             \
 480         ((buff)->flags) |= (type);                              \
 481         ((buff)->flags) &= ~ATL1C_PCIMAP_DIRECTION_MASK;        \
 482         ((buff)->flags) |= (direction);                         \
 483         } while (0)
 484
 485 /* transimit packet descriptor (tpd) ring */
 486 struct atl1c_tpd_ring {
 487         void *desc;             /* descriptor ring virtual address */
 488         dma_addr_t dma;         /* descriptor ring physical address */
 489         u16 size;               /* descriptor ring length in bytes */
 490         u16 count;              /* number of descriptors in the ring */
 491         u16 next_to_use;        /* this is protectd by adapter->tx_lock */
 492         atomic_t next_to_clean;
 493         struct atl1c_buffer *buffer_info;
 494 };
 495
 496 /* receive free descriptor (rfd) ring */
 497 struct atl1c_rfd_ring {
 498         void *desc;             /* descriptor ring virtual address */
 499         dma_addr_t dma;         /* descriptor ring physical address */
 500         u16 size;               /* descriptor ring length in bytes */
 501         u16 count;              /* number of descriptors in the ring */
 502         u16 next_to_use;
 503         u16 next_to_clean;
 504         struct atl1c_buffer *buffer_info;
 505 };
 506
 507 /* receive return descriptor (rrd) ring */
 508 struct atl1c_rrd_ring {
 509         void *desc;             /* descriptor ring virtual address */
 510         dma_addr_t dma;         /* descriptor ring physical address */
 511         u16 size;               /* descriptor ring length in bytes */
 512         u16 count;              /* number of descriptors in the ring */
 513         u16 next_to_use;
 514         u16 next_to_clean;
 515 };
 516
 517 /* board specific private data structure */
 518 struct atl1c_adapter {
 519         struct net_device   *netdev;
 520         struct pci_dev      *pdev;
 521         struct napi_struct  napi;
 522         struct page         *rx_page;
 523         unsigned int        rx_page_offset;
 524         unsigned int        rx_frag_size;
 525         struct atl1c_hw        hw;
 526         struct atl1c_hw_stats  hw_stats;
 527         struct mii_if_info  mii;    /* MII interface info */
 528         u16 rx_buffer_len;
 529
 530         unsigned long flags;
 531 #define __AT_TESTING        0x0001
 532 #define __AT_RESETTING      0x0002
 533 #define __AT_DOWN           0x0003
 534         unsigned long work_event;
 535 #define ATL1C_WORK_EVENT_RESET          0
 536 #define ATL1C_WORK_EVENT_LINK_CHANGE    1
 537         u32 msg_enable;
 538
 539         bool have_msi;
 540         u32 wol;
 541         u16 link_speed;
 542         u16 link_duplex;
 543
 544         spinlock_t mdio_lock;
 545         spinlock_t tx_lock;
 546         atomic_t irq_sem;
 547
 548         struct work_struct common_task;
 549         struct timer_list watchdog_timer;
 550         struct timer_list phy_config_timer;
 551
 552         /* All Descriptor memory */
 553         struct atl1c_ring_header ring_header;
 554         struct atl1c_tpd_ring tpd_ring[AT_MAX_TRANSMIT_QUEUE];
 555         struct atl1c_rfd_ring rfd_ring;
 556         struct atl1c_rrd_ring rrd_ring;
 557         u32 bd_number;     /* board number;*/
 558 };
 559
 560 #define AT_WRITE_REG(a, reg, value) ( \
 561                 writel((value), ((a)->hw_addr + reg)))
 562
 563 #define AT_WRITE_FLUSH(a) (\
 564                 readl((a)->hw_addr))
 565
 566 #define AT_READ_REG(a, reg, pdata) do {                                 \
 567                 if (unlikely((a)->hibernate)) {                         \
 568                         readl((a)->hw_addr + reg);                      \
 569                         *(u32 *)pdata = readl((a)->hw_addr + reg);      \
 570                 } else {                                                \
 571                         *(u32 *)pdata = readl((a)->hw_addr + reg);      \
 572                 }                                                       \
 573         } while (0)
 574
 575 #define AT_WRITE_REGB(a, reg, value) (\
 576                 writeb((value), ((a)->hw_addr + reg)))
 577
 578 #define AT_READ_REGB(a, reg) (\
 579                 readb((a)->hw_addr + reg))
 580
 581 #define AT_WRITE_REGW(a, reg, value) (\
 582                 writew((value), ((a)->hw_addr + reg)))
 583
 584 #define AT_READ_REGW(a, reg, pdata) do {                                \
 585                 if (unlikely((a)->hibernate)) {                         \
 586                         readw((a)->hw_addr + reg);                      \
 587                         *(u16 *)pdata = readw((a)->hw_addr + reg);      \
 588                 } else {                                                \
 589                         *(u16 *)pdata = readw((a)->hw_addr + reg);      \
 590                 }                                                       \
 591         } while (0)
 592
 593 #define AT_WRITE_REG_ARRAY(a, reg, offset, value) ( \
 594                 writel((value), (((a)->hw_addr + reg) + ((offset) << 2))))
 595
 596 #define AT_READ_REG_ARRAY(a, reg, offset) ( \
 597                 readl(((a)->hw_addr + reg) + ((offset) << 2)))
 598
 599 extern char atl1c_driver_name[];
 600 extern char atl1c_driver_version[];
 601
 602 void atl1c_reinit_locked(struct atl1c_adapter *adapter);
 603 s32 atl1c_reset_hw(struct atl1c_hw *hw);
 604 void atl1c_set_ethtool_ops(struct net_device *netdev);
 605 #endif /* _ATL1C_H_ */