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, write to the Free Software Foundation, Inc.,   *
  15 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
  16 *                                                                           *
  17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
  18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
  19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
  20 *                                                                           *
  21 * http://www.chelsio.com                                                    *
  22 *                                                                           *
  23 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
  24 * All rights reserved.                                                      *
  25 *                                                                           *
  26 * Maintainers: maintainers@chelsio.com                                      *
  27 *                                                                           *
  28 * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
  29 *          Tina Yang               <tainay@chelsio.com>                     *
  30 *          Felix Marti             <felix@chelsio.com>                      *
  31 *          Scott Bardone           <sbardone@chelsio.com>                   *
  32 *          Kurt Ottaway            <kottaway@chelsio.com>                   *
  33 *          Frank DiMambro          <frank@chelsio.com>                      *
  34 *                                                                           *
  35 * History:                                                                  *
  36 *                                                                           *
  37 ****************************************************************************/
  38
  39#define pr_fmt(fmt) "cxgb: " fmt
  40
  41#ifndef _CXGB_COMMON_H_
  42#define _CXGB_COMMON_H_
  43
  44#include <linux/module.h>
  45#include <linux/netdevice.h>
  46#include <linux/types.h>
  47#include <linux/delay.h>
  48#include <linux/pci.h>
  49#include <linux/ethtool.h>
  50#include <linux/if_vlan.h>
  51#include <linux/mdio.h>
  52#include <linux/crc32.h>
  53#include <linux/init.h>
  54#include <linux/slab.h>
  55#include <asm/io.h>
  56#include <linux/pci_ids.h>
  57
  58#define DRV_DESCRIPTION "Chelsio 10Gb Ethernet Driver"
  59#define DRV_NAME "cxgb"
  60#define DRV_VERSION "2.2"
  61
  62#define CH_DEVICE(devid, ssid, idx) \
  63        { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
  64
  65#define SUPPORTED_PAUSE       (1 << 13)
  66#define SUPPORTED_LOOPBACK    (1 << 15)
  67
  68#define ADVERTISED_PAUSE      (1 << 13)
  69#define ADVERTISED_ASYM_PAUSE (1 << 14)
  70
  71typedef struct adapter adapter_t;
  72
  73struct t1_rx_mode {
  74       struct net_device *dev;
  75};
  76
  77#define t1_rx_mode_promisc(rm)  (rm->dev->flags & IFF_PROMISC)
  78#define t1_rx_mode_allmulti(rm) (rm->dev->flags & IFF_ALLMULTI)
  79#define t1_rx_mode_mc_cnt(rm)   (netdev_mc_count(rm->dev))
  80#define t1_get_netdev(rm)       (rm->dev)
  81
  82#define MAX_NPORTS 4
  83#define PORT_MASK ((1 << MAX_NPORTS) - 1)
  84#define NMTUS      8
  85#define TCB_SIZE   128
  86
  87#define SPEED_INVALID 0xffff
  88#define DUPLEX_INVALID 0xff
  89
  90enum {
  91        CHBT_BOARD_N110,
  92        CHBT_BOARD_N210,
  93        CHBT_BOARD_7500,
  94        CHBT_BOARD_8000,
  95        CHBT_BOARD_CHT101,
  96        CHBT_BOARD_CHT110,
  97        CHBT_BOARD_CHT210,
  98        CHBT_BOARD_CHT204,
  99        CHBT_BOARD_CHT204V,
 100        CHBT_BOARD_CHT204E,
 101        CHBT_BOARD_CHN204,
 102        CHBT_BOARD_COUGAR,
 103        CHBT_BOARD_6800,
 104        CHBT_BOARD_SIMUL,
 105};
 106
 107enum {
 108        CHBT_TERM_FPGA,
 109        CHBT_TERM_T1,
 110        CHBT_TERM_T2,
 111        CHBT_TERM_T3
 112};
 113
 114enum {
 115        CHBT_MAC_CHELSIO_A,
 116        CHBT_MAC_IXF1010,
 117        CHBT_MAC_PM3393,
 118        CHBT_MAC_VSC7321,
 119        CHBT_MAC_DUMMY
 120};
 121
 122enum {
 123        CHBT_PHY_88E1041,
 124        CHBT_PHY_88E1111,
 125        CHBT_PHY_88X2010,
 126        CHBT_PHY_XPAK,
 127        CHBT_PHY_MY3126,
 128        CHBT_PHY_8244,
 129        CHBT_PHY_DUMMY
 130};
 131
 132enum {
 133        PAUSE_RX      = 1 << 0,
 134        PAUSE_TX      = 1 << 1,
 135        PAUSE_AUTONEG = 1 << 2
 136};
 137
 138/* Revisions of T1 chip */
 139enum {
 140        TERM_T1A   = 0,
 141        TERM_T1B   = 1,
 142        TERM_T2    = 3
 143};
 144
 145struct sge_params {
 146        unsigned int cmdQ_size[2];
 147        unsigned int freelQ_size[2];
 148        unsigned int large_buf_capacity;
 149        unsigned int rx_coalesce_usecs;
 150        unsigned int last_rx_coalesce_raw;
 151        unsigned int default_rx_coalesce_usecs;
 152        unsigned int sample_interval_usecs;
 153        unsigned int coalesce_enable;
 154        unsigned int polling;
 155};
 156
 157struct chelsio_pci_params {
 158        unsigned short speed;
 159        unsigned char  width;
 160        unsigned char  is_pcix;
 161};
 162
 163struct tp_params {
 164        unsigned int pm_size;
 165        unsigned int cm_size;
 166        unsigned int pm_rx_base;
 167        unsigned int pm_tx_base;
 168        unsigned int pm_rx_pg_size;
 169        unsigned int pm_tx_pg_size;
 170        unsigned int pm_rx_num_pgs;
 171        unsigned int pm_tx_num_pgs;
 172        unsigned int rx_coalescing_size;
 173        unsigned int use_5tuple_mode;
 174};
 175
 176struct mc5_params {
 177        unsigned int mode;       /* selects MC5 width */
 178        unsigned int nservers;   /* size of server region */
 179        unsigned int nroutes;    /* size of routing region */
 180};
 181
 182/* Default MC5 region sizes */
 183#define DEFAULT_SERVER_REGION_LEN 256
 184#define DEFAULT_RT_REGION_LEN 1024
 185
 186struct adapter_params {
 187        struct sge_params sge;
 188        struct mc5_params mc5;
 189        struct tp_params  tp;
 190        struct chelsio_pci_params pci;
 191
 192        const struct board_info *brd_info;
 193
 194        unsigned short mtus[NMTUS];
 195        unsigned int   nports;          /* # of ethernet ports */
 196        unsigned int   stats_update_period;
 197        unsigned short chip_revision;
 198        unsigned char  chip_version;
 199        unsigned char  is_asic;
 200        unsigned char  has_msi;
 201};
 202
 203struct link_config {
 204        unsigned int   supported;        /* link capabilities */
 205        unsigned int   advertising;      /* advertised capabilities */
 206        unsigned short requested_speed;  /* speed user has requested */
 207        unsigned short speed;            /* actual link speed */
 208        unsigned char  requested_duplex; /* duplex user has requested */
 209        unsigned char  duplex;           /* actual link duplex */
 210        unsigned char  requested_fc;     /* flow control user has requested */
 211        unsigned char  fc;               /* actual link flow control */
 212        unsigned char  autoneg;          /* autonegotiating? */
 213};
 214
 215struct cmac;
 216struct cphy;
 217
 218struct port_info {
 219        struct net_device *dev;
 220        struct cmac *mac;
 221        struct cphy *phy;
 222        struct link_config link_config;
 223        struct net_device_stats netstats;
 224};
 225
 226struct sge;
 227struct peespi;
 228
 229struct adapter {
 230        u8 __iomem *regs;
 231        struct pci_dev *pdev;
 232        unsigned long registered_device_map;
 233        unsigned long open_device_map;
 234        unsigned long flags;
 235
 236        const char *name;
 237        int msg_enable;
 238        u32 mmio_len;
 239
 240        struct work_struct ext_intr_handler_task;
 241        struct adapter_params params;
 242
 243        /* Terminator modules. */
 244        struct sge    *sge;
 245        struct peespi *espi;
 246        struct petp   *tp;
 247
 248        struct napi_struct napi;
 249        struct port_info port[MAX_NPORTS];
 250        struct delayed_work stats_update_task;
 251        struct timer_list stats_update_timer;
 252
 253        spinlock_t tpi_lock;
 254        spinlock_t work_lock;
 255        spinlock_t mac_lock;
 256
 257        /* guards async operations */
 258        spinlock_t async_lock ____cacheline_aligned;
 259        u32 slow_intr_mask;
 260        int t1powersave;
 261};
 262
 263enum {                                           /* adapter flags */
 264        FULL_INIT_DONE        = 1 << 0,
 265};
 266
 267struct mdio_ops;
 268struct gmac;
 269struct gphy;
 270
 271struct board_info {
 272        unsigned char           board;
 273        unsigned char           port_number;
 274        unsigned long           caps;
 275        unsigned char           chip_term;
 276        unsigned char           chip_mac;
 277        unsigned char           chip_phy;
 278        unsigned int            clock_core;
 279        unsigned int            clock_mc3;
 280        unsigned int            clock_mc4;
 281        unsigned int            espi_nports;
 282        unsigned int            clock_elmer0;
 283        unsigned char           mdio_mdien;
 284        unsigned char           mdio_mdiinv;
 285        unsigned char           mdio_mdc;
 286        unsigned char           mdio_phybaseaddr;
 287        const struct gmac      *gmac;
 288        const struct gphy      *gphy;
 289        const struct mdio_ops  *mdio_ops;
 290        const char             *desc;
 291};
 292
 293static inline int t1_is_asic(const adapter_t *adapter)
 294{
 295        return adapter->params.is_asic;
 296}
 297
 298extern const struct pci_device_id t1_pci_tbl[];
 299
 300static inline int adapter_matches_type(const adapter_t *adapter,
 301                                       int version, int revision)
 302{
 303        return adapter->params.chip_version == version &&
 304               adapter->params.chip_revision == revision;
 305}
 306
 307#define t1_is_T1B(adap) adapter_matches_type(adap, CHBT_TERM_T1, TERM_T1B)
 308#define is_T2(adap)     adapter_matches_type(adap, CHBT_TERM_T2, TERM_T2)
 309
 310/* Returns true if an adapter supports VLAN acceleration and TSO */
 311static inline int vlan_tso_capable(const adapter_t *adapter)
 312{
 313        return !t1_is_T1B(adapter);
 314}
 315
 316#define for_each_port(adapter, iter) \
 317        for (iter = 0; iter < (adapter)->params.nports; ++iter)
 318
 319#define board_info(adapter) ((adapter)->params.brd_info)
 320#define is_10G(adapter) (board_info(adapter)->caps & SUPPORTED_10000baseT_Full)
 321
 322static inline unsigned int core_ticks_per_usec(const adapter_t *adap)
 323{
 324        return board_info(adap)->clock_core / 1000000;
 325}
 326
 327extern int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp);
 328extern int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
 329extern int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
 330extern int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value);
 331
 332extern void t1_interrupts_enable(adapter_t *adapter);
 333extern void t1_interrupts_disable(adapter_t *adapter);
 334extern void t1_interrupts_clear(adapter_t *adapter);
 335extern int t1_elmer0_ext_intr_handler(adapter_t *adapter);
 336extern void t1_elmer0_ext_intr(adapter_t *adapter);
 337extern int t1_slow_intr_handler(adapter_t *adapter);
 338
 339extern int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
 340extern const struct board_info *t1_get_board_info(unsigned int board_id);
 341extern const struct board_info *t1_get_board_info_from_ids(unsigned int devid,
 342                                                    unsigned short ssid);
 343extern int t1_seeprom_read(adapter_t *adapter, u32 addr, __le32 *data);
 344extern int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
 345                     struct adapter_params *p);
 346extern int t1_init_hw_modules(adapter_t *adapter);
 347extern int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi);
 348extern void t1_free_sw_modules(adapter_t *adapter);
 349extern void t1_fatal_err(adapter_t *adapter);
 350extern void t1_link_changed(adapter_t *adapter, int port_id);
 351extern void t1_link_negotiated(adapter_t *adapter, int port_id, int link_stat,
 352                            int speed, int duplex, int pause);
 353#endif /* _CXGB_COMMON_H_ */
 354