linux/drivers/net/chelsio/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#ifndef _CXGB_COMMON_H_
  40#define _CXGB_COMMON_H_
  41
  42#include <linux/module.h>
  43#include <linux/netdevice.h>
  44#include <linux/types.h>
  45#include <linux/delay.h>
  46#include <linux/pci.h>
  47#include <linux/ethtool.h>
  48#include <linux/if_vlan.h>
  49#include <linux/mdio.h>
  50#include <linux/crc32.h>
  51#include <linux/init.h>
  52#include <asm/io.h>
  53#include <linux/pci_ids.h>
  54
  55#define DRV_DESCRIPTION "Chelsio 10Gb Ethernet Driver"
  56#define DRV_NAME "cxgb"
  57#define DRV_VERSION "2.2"
  58#define PFX      DRV_NAME ": "
  59
  60#define CH_ERR(fmt, ...)   printk(KERN_ERR PFX fmt, ## __VA_ARGS__)
  61#define CH_WARN(fmt, ...)  printk(KERN_WARNING PFX fmt, ## __VA_ARGS__)
  62#define CH_ALERT(fmt, ...) printk(KERN_ALERT PFX fmt, ## __VA_ARGS__)
  63
  64/*
  65 * More powerful macro that selectively prints messages based on msg_enable.
  66 * For info and debugging messages.
  67 */
  68#define CH_MSG(adapter, level, category, fmt, ...) do { \
  69        if ((adapter)->msg_enable & NETIF_MSG_##category) \
  70                printk(KERN_##level PFX "%s: " fmt, (adapter)->name, \
  71                       ## __VA_ARGS__); \
  72} while (0)
  73
  74#ifdef DEBUG
  75# define CH_DBG(adapter, category, fmt, ...) \
  76        CH_MSG(adapter, DEBUG, category, fmt, ## __VA_ARGS__)
  77#else
  78# define CH_DBG(fmt, ...)
  79#endif
  80
  81#define CH_DEVICE(devid, ssid, idx) \
  82        { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
  83
  84#define SUPPORTED_PAUSE       (1 << 13)
  85#define SUPPORTED_LOOPBACK    (1 << 15)
  86
  87#define ADVERTISED_PAUSE      (1 << 13)
  88#define ADVERTISED_ASYM_PAUSE (1 << 14)
  89
  90typedef struct adapter adapter_t;
  91
  92struct t1_rx_mode {
  93        struct net_device *dev;
  94        u32 idx;
  95        struct dev_mc_list *list;
  96};
  97
  98#define t1_rx_mode_promisc(rm)  (rm->dev->flags & IFF_PROMISC)
  99#define t1_rx_mode_allmulti(rm) (rm->dev->flags & IFF_ALLMULTI)
 100#define t1_rx_mode_mc_cnt(rm)   (rm->dev->mc_count)
 101
 102static inline u8 *t1_get_next_mcaddr(struct t1_rx_mode *rm)
 103{
 104        u8 *addr = NULL;
 105
 106        if (rm->idx++ < rm->dev->mc_count) {
 107                addr = rm->list->dmi_addr;
 108                rm->list = rm->list->next;
 109        }
 110        return addr;
 111}
 112
 113#define MAX_NPORTS 4
 114#define PORT_MASK ((1 << MAX_NPORTS) - 1)
 115#define NMTUS      8
 116#define TCB_SIZE   128
 117
 118#define SPEED_INVALID 0xffff
 119#define DUPLEX_INVALID 0xff
 120
 121enum {
 122        CHBT_BOARD_N110,
 123        CHBT_BOARD_N210,
 124        CHBT_BOARD_7500,
 125        CHBT_BOARD_8000,
 126        CHBT_BOARD_CHT101,
 127        CHBT_BOARD_CHT110,
 128        CHBT_BOARD_CHT210,
 129        CHBT_BOARD_CHT204,
 130        CHBT_BOARD_CHT204V,
 131        CHBT_BOARD_CHT204E,
 132        CHBT_BOARD_CHN204,
 133        CHBT_BOARD_COUGAR,
 134        CHBT_BOARD_6800,
 135        CHBT_BOARD_SIMUL,
 136};
 137
 138enum {
 139        CHBT_TERM_FPGA,
 140        CHBT_TERM_T1,
 141        CHBT_TERM_T2,
 142        CHBT_TERM_T3
 143};
 144
 145enum {
 146        CHBT_MAC_CHELSIO_A,
 147        CHBT_MAC_IXF1010,
 148        CHBT_MAC_PM3393,
 149        CHBT_MAC_VSC7321,
 150        CHBT_MAC_DUMMY
 151};
 152
 153enum {
 154        CHBT_PHY_88E1041,
 155        CHBT_PHY_88E1111,
 156        CHBT_PHY_88X2010,
 157        CHBT_PHY_XPAK,
 158        CHBT_PHY_MY3126,
 159        CHBT_PHY_8244,
 160        CHBT_PHY_DUMMY
 161};
 162
 163enum {
 164        PAUSE_RX      = 1 << 0,
 165        PAUSE_TX      = 1 << 1,
 166        PAUSE_AUTONEG = 1 << 2
 167};
 168
 169/* Revisions of T1 chip */
 170enum {
 171        TERM_T1A   = 0,
 172        TERM_T1B   = 1,
 173        TERM_T2    = 3
 174};
 175
 176struct sge_params {
 177        unsigned int cmdQ_size[2];
 178        unsigned int freelQ_size[2];
 179        unsigned int large_buf_capacity;
 180        unsigned int rx_coalesce_usecs;
 181        unsigned int last_rx_coalesce_raw;
 182        unsigned int default_rx_coalesce_usecs;
 183        unsigned int sample_interval_usecs;
 184        unsigned int coalesce_enable;
 185        unsigned int polling;
 186};
 187
 188struct chelsio_pci_params {
 189        unsigned short speed;
 190        unsigned char  width;
 191        unsigned char  is_pcix;
 192};
 193
 194struct tp_params {
 195        unsigned int pm_size;
 196        unsigned int cm_size;
 197        unsigned int pm_rx_base;
 198        unsigned int pm_tx_base;
 199        unsigned int pm_rx_pg_size;
 200        unsigned int pm_tx_pg_size;
 201        unsigned int pm_rx_num_pgs;
 202        unsigned int pm_tx_num_pgs;
 203        unsigned int rx_coalescing_size;
 204        unsigned int use_5tuple_mode;
 205};
 206
 207struct mc5_params {
 208        unsigned int mode;       /* selects MC5 width */
 209        unsigned int nservers;   /* size of server region */
 210        unsigned int nroutes;    /* size of routing region */
 211};
 212
 213/* Default MC5 region sizes */
 214#define DEFAULT_SERVER_REGION_LEN 256
 215#define DEFAULT_RT_REGION_LEN 1024
 216
 217struct adapter_params {
 218        struct sge_params sge;
 219        struct mc5_params mc5;
 220        struct tp_params  tp;
 221        struct chelsio_pci_params pci;
 222
 223        const struct board_info *brd_info;
 224
 225        unsigned short mtus[NMTUS];
 226        unsigned int   nports;          /* # of ethernet ports */
 227        unsigned int   stats_update_period;
 228        unsigned short chip_revision;
 229        unsigned char  chip_version;
 230        unsigned char  is_asic;
 231        unsigned char  has_msi;
 232};
 233
 234struct link_config {
 235        unsigned int   supported;        /* link capabilities */
 236        unsigned int   advertising;      /* advertised capabilities */
 237        unsigned short requested_speed;  /* speed user has requested */
 238        unsigned short speed;            /* actual link speed */
 239        unsigned char  requested_duplex; /* duplex user has requested */
 240        unsigned char  duplex;           /* actual link duplex */
 241        unsigned char  requested_fc;     /* flow control user has requested */
 242        unsigned char  fc;               /* actual link flow control */
 243        unsigned char  autoneg;          /* autonegotiating? */
 244};
 245
 246struct cmac;
 247struct cphy;
 248
 249struct port_info {
 250        struct net_device *dev;
 251        struct cmac *mac;
 252        struct cphy *phy;
 253        struct link_config link_config;
 254        struct net_device_stats netstats;
 255};
 256
 257struct sge;
 258struct peespi;
 259
 260struct adapter {
 261        u8 __iomem *regs;
 262        struct pci_dev *pdev;
 263        unsigned long registered_device_map;
 264        unsigned long open_device_map;
 265        unsigned long flags;
 266
 267        const char *name;
 268        int msg_enable;
 269        u32 mmio_len;
 270
 271        struct work_struct ext_intr_handler_task;
 272        struct adapter_params params;
 273
 274        struct vlan_group *vlan_grp;
 275
 276        /* Terminator modules. */
 277        struct sge    *sge;
 278        struct peespi *espi;
 279        struct petp   *tp;
 280
 281        struct napi_struct napi;
 282        struct port_info port[MAX_NPORTS];
 283        struct delayed_work stats_update_task;
 284        struct timer_list stats_update_timer;
 285
 286        spinlock_t tpi_lock;
 287        spinlock_t work_lock;
 288        spinlock_t mac_lock;
 289
 290        /* guards async operations */
 291        spinlock_t async_lock ____cacheline_aligned;
 292        u32 slow_intr_mask;
 293        int t1powersave;
 294};
 295
 296enum {                                           /* adapter flags */
 297        FULL_INIT_DONE        = 1 << 0,
 298        TSO_CAPABLE           = 1 << 2,
 299        TCP_CSUM_CAPABLE      = 1 << 3,
 300        UDP_CSUM_CAPABLE      = 1 << 4,
 301        VLAN_ACCEL_CAPABLE    = 1 << 5,
 302        RX_CSUM_ENABLED       = 1 << 6,
 303};
 304
 305struct mdio_ops;
 306struct gmac;
 307struct gphy;
 308
 309struct board_info {
 310        unsigned char           board;
 311        unsigned char           port_number;
 312        unsigned long           caps;
 313        unsigned char           chip_term;
 314        unsigned char           chip_mac;
 315        unsigned char           chip_phy;
 316        unsigned int            clock_core;
 317        unsigned int            clock_mc3;
 318        unsigned int            clock_mc4;
 319        unsigned int            espi_nports;
 320        unsigned int            clock_cspi;
 321        unsigned int            clock_elmer0;
 322        unsigned char           mdio_mdien;
 323        unsigned char           mdio_mdiinv;
 324        unsigned char           mdio_mdc;
 325        unsigned char           mdio_phybaseaddr;
 326        const struct gmac      *gmac;
 327        const struct gphy      *gphy;
 328        const struct mdio_ops  *mdio_ops;
 329        const char             *desc;
 330};
 331
 332static inline int t1_is_asic(const adapter_t *adapter)
 333{
 334        return adapter->params.is_asic;
 335}
 336
 337extern struct pci_device_id t1_pci_tbl[];
 338
 339static inline int adapter_matches_type(const adapter_t *adapter,
 340                                       int version, int revision)
 341{
 342        return adapter->params.chip_version == version &&
 343               adapter->params.chip_revision == revision;
 344}
 345
 346#define t1_is_T1B(adap) adapter_matches_type(adap, CHBT_TERM_T1, TERM_T1B)
 347#define is_T2(adap)     adapter_matches_type(adap, CHBT_TERM_T2, TERM_T2)
 348
 349/* Returns true if an adapter supports VLAN acceleration and TSO */
 350static inline int vlan_tso_capable(const adapter_t *adapter)
 351{
 352        return !t1_is_T1B(adapter);
 353}
 354
 355#define for_each_port(adapter, iter) \
 356        for (iter = 0; iter < (adapter)->params.nports; ++iter)
 357
 358#define board_info(adapter) ((adapter)->params.brd_info)
 359#define is_10G(adapter) (board_info(adapter)->caps & SUPPORTED_10000baseT_Full)
 360
 361static inline unsigned int core_ticks_per_usec(const adapter_t *adap)
 362{
 363        return board_info(adap)->clock_core / 1000000;
 364}
 365
 366extern int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp);
 367extern int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
 368extern int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
 369extern int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value);
 370
 371extern void t1_interrupts_enable(adapter_t *adapter);
 372extern void t1_interrupts_disable(adapter_t *adapter);
 373extern void t1_interrupts_clear(adapter_t *adapter);
 374extern int t1_elmer0_ext_intr_handler(adapter_t *adapter);
 375extern void t1_elmer0_ext_intr(adapter_t *adapter);
 376extern int t1_slow_intr_handler(adapter_t *adapter);
 377
 378extern int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
 379extern const struct board_info *t1_get_board_info(unsigned int board_id);
 380extern const struct board_info *t1_get_board_info_from_ids(unsigned int devid,
 381                                                    unsigned short ssid);
 382extern int t1_seeprom_read(adapter_t *adapter, u32 addr, __le32 *data);
 383extern int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
 384                     struct adapter_params *p);
 385extern int t1_init_hw_modules(adapter_t *adapter);
 386extern int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi);
 387extern void t1_free_sw_modules(adapter_t *adapter);
 388extern void t1_fatal_err(adapter_t *adapter);
 389extern void t1_link_changed(adapter_t *adapter, int port_id);
 390extern void t1_link_negotiated(adapter_t *adapter, int port_id, int link_stat,
 391                            int speed, int duplex, int pause);
 392#endif /* _CXGB_COMMON_H_ */
 393