kernel/drivers/net/ethernet/chelsio/cxgb/common.h

   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
  69 typedef struct adapter adapter_t;
  70
  71 struct 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 enum {
  89         CHBT_BOARD_N110,
  90         CHBT_BOARD_N210,
  91         CHBT_BOARD_7500,
  92         CHBT_BOARD_8000,
  93         CHBT_BOARD_CHT101,
  94         CHBT_BOARD_CHT110,
  95         CHBT_BOARD_CHT210,
  96         CHBT_BOARD_CHT204,
  97         CHBT_BOARD_CHT204V,
  98         CHBT_BOARD_CHT204E,
  99         CHBT_BOARD_CHN204,
 100         CHBT_BOARD_COUGAR,
 101         CHBT_BOARD_6800,
 102         CHBT_BOARD_SIMUL,
 103 };
 104
 105 enum {
 106         CHBT_TERM_FPGA,
 107         CHBT_TERM_T1,
 108         CHBT_TERM_T2,
 109         CHBT_TERM_T3
 110 };
 111
 112 enum {
 113         CHBT_MAC_CHELSIO_A,
 114         CHBT_MAC_IXF1010,
 115         CHBT_MAC_PM3393,
 116         CHBT_MAC_VSC7321,
 117         CHBT_MAC_DUMMY
 118 };
 119
 120 enum {
 121         CHBT_PHY_88E1041,
 122         CHBT_PHY_88E1111,
 123         CHBT_PHY_88X2010,
 124         CHBT_PHY_XPAK,
 125         CHBT_PHY_MY3126,
 126         CHBT_PHY_8244,
 127         CHBT_PHY_DUMMY
 128 };
 129
 130 enum {
 131         PAUSE_RX      = 1 << 0,
 132         PAUSE_TX      = 1 << 1,
 133         PAUSE_AUTONEG = 1 << 2
 134 };
 135
 136 /* Revisions of T1 chip */
 137 enum {
 138         TERM_T1A   = 0,
 139         TERM_T1B   = 1,
 140         TERM_T2    = 3
 141 };
 142
 143 struct sge_params {
 144         unsigned int cmdQ_size[2];
 145         unsigned int freelQ_size[2];
 146         unsigned int large_buf_capacity;
 147         unsigned int rx_coalesce_usecs;
 148         unsigned int last_rx_coalesce_raw;
 149         unsigned int default_rx_coalesce_usecs;
 150         unsigned int sample_interval_usecs;
 151         unsigned int coalesce_enable;
 152         unsigned int polling;
 153 };
 154
 155 struct chelsio_pci_params {
 156         unsigned short speed;
 157         unsigned char  width;
 158         unsigned char  is_pcix;
 159 };
 160
 161 struct tp_params {
 162         unsigned int pm_size;
 163         unsigned int cm_size;
 164         unsigned int pm_rx_base;
 165         unsigned int pm_tx_base;
 166         unsigned int pm_rx_pg_size;
 167         unsigned int pm_tx_pg_size;
 168         unsigned int pm_rx_num_pgs;
 169         unsigned int pm_tx_num_pgs;
 170         unsigned int rx_coalescing_size;
 171         unsigned int use_5tuple_mode;
 172 };
 173
 174 struct mc5_params {
 175         unsigned int mode;       /* selects MC5 width */
 176         unsigned int nservers;   /* size of server region */
 177         unsigned int nroutes;    /* size of routing region */
 178 };
 179
 180 /* Default MC5 region sizes */
 181 #define DEFAULT_SERVER_REGION_LEN 256
 182 #define DEFAULT_RT_REGION_LEN 1024
 183
 184 struct adapter_params {
 185         struct sge_params sge;
 186         struct mc5_params mc5;
 187         struct tp_params  tp;
 188         struct chelsio_pci_params pci;
 189
 190         const struct board_info *brd_info;
 191
 192         unsigned short mtus[NMTUS];
 193         unsigned int   nports;          /* # of ethernet ports */
 194         unsigned int   stats_update_period;
 195         unsigned short chip_revision;
 196         unsigned char  chip_version;
 197         unsigned char  is_asic;
 198         unsigned char  has_msi;
 199 };
 200
 201 struct link_config {
 202         unsigned int   supported;        /* link capabilities */
 203         unsigned int   advertising;      /* advertised capabilities */
 204         unsigned short requested_speed;  /* speed user has requested */
 205         unsigned short speed;            /* actual link speed */
 206         unsigned char  requested_duplex; /* duplex user has requested */
 207         unsigned char  duplex;           /* actual link duplex */
 208         unsigned char  requested_fc;     /* flow control user has requested */
 209         unsigned char  fc;               /* actual link flow control */
 210         unsigned char  autoneg;          /* autonegotiating? */
 211 };
 212
 213 struct cmac;
 214 struct cphy;
 215
 216 struct port_info {
 217         struct net_device *dev;
 218         struct cmac *mac;
 219         struct cphy *phy;
 220         struct link_config link_config;
 221         struct net_device_stats netstats;
 222 };
 223
 224 struct sge;
 225 struct peespi;
 226
 227 struct adapter {
 228         u8 __iomem *regs;
 229         struct pci_dev *pdev;
 230         unsigned long registered_device_map;
 231         unsigned long open_device_map;
 232         unsigned long flags;
 233
 234         const char *name;
 235         int msg_enable;
 236         u32 mmio_len;
 237
 238         struct work_struct ext_intr_handler_task;
 239         struct adapter_params params;
 240
 241         /* Terminator modules. */
 242         struct sge    *sge;
 243         struct peespi *espi;
 244         struct petp   *tp;
 245
 246         struct napi_struct napi;
 247         struct port_info port[MAX_NPORTS];
 248         struct delayed_work stats_update_task;
 249         struct timer_list stats_update_timer;
 250
 251         spinlock_t tpi_lock;
 252         spinlock_t work_lock;
 253         spinlock_t mac_lock;
 254
 255         /* guards async operations */
 256         spinlock_t async_lock ____cacheline_aligned;
 257         u32 slow_intr_mask;
 258         int t1powersave;
 259 };
 260
 261 enum {                                           /* adapter flags */
 262         FULL_INIT_DONE        = 1 << 0,
 263 };
 264
 265 struct mdio_ops;
 266 struct gmac;
 267 struct gphy;
 268
 269 struct board_info {
 270         unsigned char           board;
 271         unsigned char           port_number;
 272         unsigned long           caps;
 273         unsigned char           chip_term;
 274         unsigned char           chip_mac;
 275         unsigned char           chip_phy;
 276         unsigned int            clock_core;
 277         unsigned int            clock_mc3;
 278         unsigned int            clock_mc4;
 279         unsigned int            espi_nports;
 280         unsigned int            clock_elmer0;
 281         unsigned char           mdio_mdien;
 282         unsigned char           mdio_mdiinv;
 283         unsigned char           mdio_mdc;
 284         unsigned char           mdio_phybaseaddr;
 285         const struct gmac      *gmac;
 286         const struct gphy      *gphy;
 287         const struct mdio_ops  *mdio_ops;
 288         const char             *desc;
 289 };
 290
 291 static inline int t1_is_asic(const adapter_t *adapter)
 292 {
 293         return adapter->params.is_asic;
 294 }
 295
 296 extern const struct pci_device_id t1_pci_tbl[];
 297
 298 static inline int adapter_matches_type(const adapter_t *adapter,
 299                                        int version, int revision)
 300 {
 301         return adapter->params.chip_version == version &&
 302                adapter->params.chip_revision == revision;
 303 }
 304
 305 #define t1_is_T1B(adap) adapter_matches_type(adap, CHBT_TERM_T1, TERM_T1B)
 306 #define is_T2(adap)     adapter_matches_type(adap, CHBT_TERM_T2, TERM_T2)
 307
 308 /* Returns true if an adapter supports VLAN acceleration and TSO */
 309 static inline int vlan_tso_capable(const adapter_t *adapter)
 310 {
 311         return !t1_is_T1B(adapter);
 312 }
 313
 314 #define for_each_port(adapter, iter) \
 315         for (iter = 0; iter < (adapter)->params.nports; ++iter)
 316
 317 #define board_info(adapter) ((adapter)->params.brd_info)
 318 #define is_10G(adapter) (board_info(adapter)->caps & SUPPORTED_10000baseT_Full)
 319
 320 static inline unsigned int core_ticks_per_usec(const adapter_t *adap)
 321 {
 322         return board_info(adap)->clock_core / 1000000;
 323 }
 324
 325 int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp);
 326 int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
 327 int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
 328 int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value);
 329
 330 void t1_interrupts_enable(adapter_t *adapter);
 331 void t1_interrupts_disable(adapter_t *adapter);
 332 void t1_interrupts_clear(adapter_t *adapter);
 333 int t1_elmer0_ext_intr_handler(adapter_t *adapter);
 334 void t1_elmer0_ext_intr(adapter_t *adapter);
 335 int t1_slow_intr_handler(adapter_t *adapter);
 336
 337 int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
 338 const struct board_info *t1_get_board_info(unsigned int board_id);
 339 const struct board_info *t1_get_board_info_from_ids(unsigned int devid,
 340                                                     unsigned short ssid);
 341 int t1_seeprom_read(adapter_t *adapter, u32 addr, __le32 *data);
 342 int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
 343                      struct adapter_params *p);
 344 int t1_init_hw_modules(adapter_t *adapter);
 345 int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi);
 346 void t1_free_sw_modules(adapter_t *adapter);
 347 void t1_fatal_err(adapter_t *adapter);
 348 void t1_link_changed(adapter_t *adapter, int port_id);
 349 void t1_link_negotiated(adapter_t *adapter, int port_id, int link_stat,
 350                             int speed, int duplex, int pause);
 351 #endif /* _CXGB_COMMON_H_ */