linux/drivers/net/ethernet/chelsio/cxgb/common.h
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   1/*****************************************************************************
   2 *                                                                           *
   3 * File: common.h                                                            *
   4 * $Revision: 1.21 $                                                         *
   5 * $Date: 2005/06/22 00:43:25 $                                              *
   6 * Description:                                                              *
   7 *  part of the Chelsio 10Gb Ethernet Driver.                                *
   8 *                                                                           *
   9 * This program is free software; you can redistribute it and/or modify      *
  10 * it under the terms of the GNU General Public License, version 2, as       *
  11 * published by the Free Software Foundation.                                *
  12 *                                                                           *
  13 * You should have received a copy of the GNU General Public License along   *
  14 * with this program; if not, see <http://www.gnu.org/licenses/>.            *
  15 *                                                                           *
  16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
  17 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
  18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
  19 *                                                                           *
  20 * http://www.chelsio.com                                                    *
  21 *                                                                           *
  22 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
  23 * All rights reserved.                                                      *
  24 *                                                                           *
  25 * Maintainers: maintainers@chelsio.com                                      *
  26 *                                                                           *
  27 * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
  28 *          Tina Yang               <tainay@chelsio.com>                     *
  29 *          Felix Marti             <felix@chelsio.com>                      *
  30 *          Scott Bardone           <sbardone@chelsio.com>                   *
  31 *          Kurt Ottaway            <kottaway@chelsio.com>                   *
  32 *          Frank DiMambro          <frank@chelsio.com>                      *
  33 *                                                                           *
  34 * History:                                                                  *
  35 *                                                                           *
  36 ****************************************************************************/
  37
  38#define pr_fmt(fmt) "cxgb: " fmt
  39
  40#ifndef _CXGB_COMMON_H_
  41#define _CXGB_COMMON_H_
  42
  43#include <linux/module.h>
  44#include <linux/netdevice.h>
  45#include <linux/types.h>
  46#include <linux/delay.h>
  47#include <linux/pci.h>
  48#include <linux/ethtool.h>
  49#include <linux/if_vlan.h>
  50#include <linux/mdio.h>
  51#include <linux/crc32.h>
  52#include <linux/slab.h>
  53#include <asm/io.h>
  54#include <linux/pci_ids.h>
  55
  56#define DRV_DESCRIPTION "Chelsio 10Gb Ethernet Driver"
  57#define DRV_NAME "cxgb"
  58#define DRV_VERSION "2.2"
  59
  60#define CH_DEVICE(devid, ssid, idx) \
  61        { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
  62
  63#define SUPPORTED_PAUSE       (1 << 13)
  64#define SUPPORTED_LOOPBACK    (1 << 15)
  65
  66#define ADVERTISED_PAUSE      (1 << 13)
  67#define ADVERTISED_ASYM_PAUSE (1 << 14)
  68
  69typedef struct adapter adapter_t;
  70
  71struct t1_rx_mode {
  72       struct net_device *dev;
  73};
  74
  75#define t1_rx_mode_promisc(rm)  (rm->dev->flags & IFF_PROMISC)
  76#define t1_rx_mode_allmulti(rm) (rm->dev->flags & IFF_ALLMULTI)
  77#define t1_rx_mode_mc_cnt(rm)   (netdev_mc_count(rm->dev))
  78#define t1_get_netdev(rm)       (rm->dev)
  79
  80#define MAX_NPORTS 4
  81#define PORT_MASK ((1 << MAX_NPORTS) - 1)
  82#define NMTUS      8
  83#define TCB_SIZE   128
  84
  85#define SPEED_INVALID 0xffff
  86#define DUPLEX_INVALID 0xff
  87
  88/* Max frame size PM3393 can handle. Includes Ethernet header and CRC. */
  89#define PM3393_MAX_FRAME_SIZE 9600
  90
  91#define VSC7326_MAX_MTU 9600
  92
  93enum {
  94        CHBT_BOARD_N110,
  95        CHBT_BOARD_N210,
  96        CHBT_BOARD_7500,
  97        CHBT_BOARD_8000,
  98        CHBT_BOARD_CHT101,
  99        CHBT_BOARD_CHT110,
 100        CHBT_BOARD_CHT210,
 101        CHBT_BOARD_CHT204,
 102        CHBT_BOARD_CHT204V,
 103        CHBT_BOARD_CHT204E,
 104        CHBT_BOARD_CHN204,
 105        CHBT_BOARD_COUGAR,
 106        CHBT_BOARD_6800,
 107        CHBT_BOARD_SIMUL,
 108};
 109
 110enum {
 111        CHBT_TERM_FPGA,
 112        CHBT_TERM_T1,
 113        CHBT_TERM_T2,
 114        CHBT_TERM_T3
 115};
 116
 117enum {
 118        CHBT_MAC_CHELSIO_A,
 119        CHBT_MAC_IXF1010,
 120        CHBT_MAC_PM3393,
 121        CHBT_MAC_VSC7321,
 122        CHBT_MAC_DUMMY
 123};
 124
 125enum {
 126        CHBT_PHY_88E1041,
 127        CHBT_PHY_88E1111,
 128        CHBT_PHY_88X2010,
 129        CHBT_PHY_XPAK,
 130        CHBT_PHY_MY3126,
 131        CHBT_PHY_8244,
 132        CHBT_PHY_DUMMY
 133};
 134
 135enum {
 136        PAUSE_RX      = 1 << 0,
 137        PAUSE_TX      = 1 << 1,
 138        PAUSE_AUTONEG = 1 << 2
 139};
 140
 141/* Revisions of T1 chip */
 142enum {
 143        TERM_T1A   = 0,
 144        TERM_T1B   = 1,
 145        TERM_T2    = 3
 146};
 147
 148struct sge_params {
 149        unsigned int cmdQ_size[2];
 150        unsigned int freelQ_size[2];
 151        unsigned int large_buf_capacity;
 152        unsigned int rx_coalesce_usecs;
 153        unsigned int last_rx_coalesce_raw;
 154        unsigned int default_rx_coalesce_usecs;
 155        unsigned int sample_interval_usecs;
 156        unsigned int coalesce_enable;
 157        unsigned int polling;
 158};
 159
 160struct chelsio_pci_params {
 161        unsigned short speed;
 162        unsigned char  width;
 163        unsigned char  is_pcix;
 164};
 165
 166struct tp_params {
 167        unsigned int pm_size;
 168        unsigned int cm_size;
 169        unsigned int pm_rx_base;
 170        unsigned int pm_tx_base;
 171        unsigned int pm_rx_pg_size;
 172        unsigned int pm_tx_pg_size;
 173        unsigned int pm_rx_num_pgs;
 174        unsigned int pm_tx_num_pgs;
 175        unsigned int rx_coalescing_size;
 176        unsigned int use_5tuple_mode;
 177};
 178
 179struct mc5_params {
 180        unsigned int mode;       /* selects MC5 width */
 181        unsigned int nservers;   /* size of server region */
 182        unsigned int nroutes;    /* size of routing region */
 183};
 184
 185/* Default MC5 region sizes */
 186#define DEFAULT_SERVER_REGION_LEN 256
 187#define DEFAULT_RT_REGION_LEN 1024
 188
 189struct adapter_params {
 190        struct sge_params sge;
 191        struct mc5_params mc5;
 192        struct tp_params  tp;
 193        struct chelsio_pci_params pci;
 194
 195        const struct board_info *brd_info;
 196
 197        unsigned short mtus[NMTUS];
 198        unsigned int   nports;          /* # of ethernet ports */
 199        unsigned int   stats_update_period;
 200        unsigned short chip_revision;
 201        unsigned char  chip_version;
 202        unsigned char  is_asic;
 203        unsigned char  has_msi;
 204};
 205
 206struct link_config {
 207        unsigned int   supported;        /* link capabilities */
 208        unsigned int   advertising;      /* advertised capabilities */
 209        unsigned short requested_speed;  /* speed user has requested */
 210        unsigned short speed;            /* actual link speed */
 211        unsigned char  requested_duplex; /* duplex user has requested */
 212        unsigned char  duplex;           /* actual link duplex */
 213        unsigned char  requested_fc;     /* flow control user has requested */
 214        unsigned char  fc;               /* actual link flow control */
 215        unsigned char  autoneg;          /* autonegotiating? */
 216};
 217
 218struct cmac;
 219struct cphy;
 220
 221struct port_info {
 222        struct net_device *dev;
 223        struct cmac *mac;
 224        struct cphy *phy;
 225        struct link_config link_config;
 226};
 227
 228struct sge;
 229struct peespi;
 230
 231struct adapter {
 232        u8 __iomem *regs;
 233        struct pci_dev *pdev;
 234        unsigned long registered_device_map;
 235        unsigned long open_device_map;
 236        unsigned long flags;
 237
 238        const char *name;
 239        int msg_enable;
 240        u32 mmio_len;
 241
 242        struct work_struct ext_intr_handler_task;
 243        struct adapter_params params;
 244
 245        /* Terminator modules. */
 246        struct sge    *sge;
 247        struct peespi *espi;
 248        struct petp   *tp;
 249
 250        struct napi_struct napi;
 251        struct port_info port[MAX_NPORTS];
 252        struct delayed_work stats_update_task;
 253        struct timer_list stats_update_timer;
 254
 255        spinlock_t tpi_lock;
 256        spinlock_t work_lock;
 257        spinlock_t mac_lock;
 258
 259        /* guards async operations */
 260        spinlock_t async_lock ____cacheline_aligned;
 261        u32 slow_intr_mask;
 262        int t1powersave;
 263};
 264
 265enum {                                           /* adapter flags */
 266        FULL_INIT_DONE        = 1 << 0,
 267};
 268
 269struct mdio_ops;
 270struct gmac;
 271struct gphy;
 272
 273struct board_info {
 274        unsigned char           board;
 275        unsigned char           port_number;
 276        unsigned long           caps;
 277        unsigned char           chip_term;
 278        unsigned char           chip_mac;
 279        unsigned char           chip_phy;
 280        unsigned int            clock_core;
 281        unsigned int            clock_mc3;
 282        unsigned int            clock_mc4;
 283        unsigned int            espi_nports;
 284        unsigned int            clock_elmer0;
 285        unsigned char           mdio_mdien;
 286        unsigned char           mdio_mdiinv;
 287        unsigned char           mdio_mdc;
 288        unsigned char           mdio_phybaseaddr;
 289        const struct gmac      *gmac;
 290        const struct gphy      *gphy;
 291        const struct mdio_ops  *mdio_ops;
 292        const char             *desc;
 293};
 294
 295static inline int t1_is_asic(const adapter_t *adapter)
 296{
 297        return adapter->params.is_asic;
 298}
 299
 300extern const struct pci_device_id t1_pci_tbl[];
 301
 302static inline int adapter_matches_type(const adapter_t *adapter,
 303                                       int version, int revision)
 304{
 305        return adapter->params.chip_version == version &&
 306               adapter->params.chip_revision == revision;
 307}
 308
 309#define t1_is_T1B(adap) adapter_matches_type(adap, CHBT_TERM_T1, TERM_T1B)
 310#define is_T2(adap)     adapter_matches_type(adap, CHBT_TERM_T2, TERM_T2)
 311
 312/* Returns true if an adapter supports VLAN acceleration and TSO */
 313static inline int vlan_tso_capable(const adapter_t *adapter)
 314{
 315        return !t1_is_T1B(adapter);
 316}
 317
 318#define for_each_port(adapter, iter) \
 319        for (iter = 0; iter < (adapter)->params.nports; ++iter)
 320
 321#define board_info(adapter) ((adapter)->params.brd_info)
 322#define is_10G(adapter) (board_info(adapter)->caps & SUPPORTED_10000baseT_Full)
 323
 324static inline unsigned int core_ticks_per_usec(const adapter_t *adap)
 325{
 326        return board_info(adap)->clock_core / 1000000;
 327}
 328
 329int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp);
 330int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
 331int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
 332int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value);
 333
 334void t1_interrupts_enable(adapter_t *adapter);
 335void t1_interrupts_disable(adapter_t *adapter);
 336void t1_interrupts_clear(adapter_t *adapter);
 337int t1_elmer0_ext_intr_handler(adapter_t *adapter);
 338void t1_elmer0_ext_intr(adapter_t *adapter);
 339int t1_slow_intr_handler(adapter_t *adapter);
 340
 341int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
 342const struct board_info *t1_get_board_info(unsigned int board_id);
 343const struct board_info *t1_get_board_info_from_ids(unsigned int devid,
 344                                                    unsigned short ssid);
 345int t1_seeprom_read(adapter_t *adapter, u32 addr, __le32 *data);
 346int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
 347                     struct adapter_params *p);
 348int t1_init_hw_modules(adapter_t *adapter);
 349int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi);
 350void t1_free_sw_modules(adapter_t *adapter);
 351void t1_fatal_err(adapter_t *adapter);
 352void t1_link_changed(adapter_t *adapter, int port_id);
 353void t1_link_negotiated(adapter_t *adapter, int port_id, int link_stat,
 354                            int speed, int duplex, int pause);
 355#endif /* _CXGB_COMMON_H_ */
 356