drivers/scsi/bfa/bfad_drv.h

   1 /*
   2  * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
   3  * Copyright (c) 2014- QLogic Corporation.
   4  * All rights reserved
   5  * www.qlogic.com
   6  *
   7  * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License (GPL) Version 2 as
  11  * published by the Free Software Foundation
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  */
  18
  19 /*
  20  * Contains base driver definitions.
  21  */
  22
  23 /*
  24  *  bfa_drv.h Linux driver data structures.
  25  */
  26
  27 #ifndef __BFAD_DRV_H__
  28 #define __BFAD_DRV_H__
  29
  30 #include <linux/types.h>
  31 #include <linux/pci.h>
  32 #include <linux/dma-mapping.h>
  33 #include <linux/idr.h>
  34 #include <linux/interrupt.h>
  35 #include <linux/cdev.h>
  36 #include <linux/fs.h>
  37 #include <linux/delay.h>
  38 #include <linux/vmalloc.h>
  39 #include <linux/workqueue.h>
  40 #include <linux/bitops.h>
  41 #include <linux/aer.h>
  42 #include <scsi/scsi.h>
  43 #include <scsi/scsi_host.h>
  44 #include <scsi/scsi_tcq.h>
  45 #include <scsi/scsi_transport_fc.h>
  46 #include <scsi/scsi_transport.h>
  47 #include <scsi/scsi_bsg_fc.h>
  48 #include <scsi/scsi_devinfo.h>
  49
  50 #include "bfa_modules.h"
  51 #include "bfa_fcs.h"
  52 #include "bfa_defs_fcs.h"
  53
  54 #include "bfa_plog.h"
  55 #include "bfa_cs.h"
  56
  57 #define BFAD_DRIVER_NAME        "bfa"
  58 #ifdef BFA_DRIVER_VERSION
  59 #define BFAD_DRIVER_VERSION    BFA_DRIVER_VERSION
  60 #else
  61 #define BFAD_DRIVER_VERSION    "3.2.25.1"
  62 #endif
  63
  64 #define BFAD_PROTO_NAME FCPI_NAME
  65 #define BFAD_IRQ_FLAGS IRQF_SHARED
  66
  67 #ifndef FC_PORTSPEED_8GBIT
  68 #define FC_PORTSPEED_8GBIT 0x10
  69 #endif
  70
  71 /*
  72  * BFAD flags
  73  */
  74 #define BFAD_MSIX_ON                            0x00000001
  75 #define BFAD_HAL_INIT_DONE                      0x00000002
  76 #define BFAD_DRV_INIT_DONE                      0x00000004
  77 #define BFAD_CFG_PPORT_DONE                     0x00000008
  78 #define BFAD_HAL_START_DONE                     0x00000010
  79 #define BFAD_PORT_ONLINE                        0x00000020
  80 #define BFAD_RPORT_ONLINE                       0x00000040
  81 #define BFAD_FCS_INIT_DONE                      0x00000080
  82 #define BFAD_HAL_INIT_FAIL                      0x00000100
  83 #define BFAD_FC4_PROBE_DONE                     0x00000200
  84 #define BFAD_PORT_DELETE                        0x00000001
  85 #define BFAD_INTX_ON                            0x00000400
  86 #define BFAD_EEH_BUSY                           0x00000800
  87 #define BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE    0x00001000
  88 /*
  89  * BFAD related definition
  90  */
  91 #define SCSI_SCAN_DELAY         HZ
  92 #define BFAD_STOP_TIMEOUT       30
  93 #define BFAD_SUSPEND_TIMEOUT    BFAD_STOP_TIMEOUT
  94
  95 /*
  96  * BFAD configuration parameter default values
  97  */
  98 #define BFAD_LUN_QUEUE_DEPTH    32
  99 #define BFAD_IO_MAX_SGE         SG_ALL
 100 #define BFAD_MIN_SECTORS        128 /* 64k   */
 101 #define BFAD_MAX_SECTORS        0xFFFF  /* 32 MB */
 102
 103 #define bfad_isr_t irq_handler_t
 104
 105 #define MAX_MSIX_ENTRY 22
 106
 107 struct bfad_msix_s {
 108         struct bfad_s *bfad;
 109         struct msix_entry msix;
 110         char name[32];
 111 };
 112
 113 /*
 114  * Only append to the enums defined here to avoid any versioning
 115  * needed between trace utility and driver version
 116  */
 117 enum {
 118         BFA_TRC_LDRV_BFAD               = 1,
 119         BFA_TRC_LDRV_IM                 = 2,
 120         BFA_TRC_LDRV_BSG                = 3,
 121 };
 122
 123 enum bfad_port_pvb_type {
 124         BFAD_PORT_PHYS_BASE = 0,
 125         BFAD_PORT_PHYS_VPORT = 1,
 126         BFAD_PORT_VF_BASE = 2,
 127         BFAD_PORT_VF_VPORT = 3,
 128 };
 129
 130 /*
 131  * PORT data structure
 132  */
 133 struct bfad_port_s {
 134         struct list_head list_entry;
 135         struct bfad_s   *bfad;
 136         struct bfa_fcs_lport_s *fcs_port;
 137         u32     roles;
 138         s32             flags;
 139         u32     supported_fc4s;
 140         enum bfad_port_pvb_type pvb_type;
 141         struct bfad_im_port_s *im_port; /* IM specific data */
 142         /* port debugfs specific data */
 143         struct dentry *port_debugfs_root;
 144 };
 145
 146 /*
 147  * VPORT data structure
 148  */
 149 struct bfad_vport_s {
 150         struct bfad_port_s     drv_port;
 151         struct bfa_fcs_vport_s fcs_vport;
 152         struct completion *comp_del;
 153         struct list_head list_entry;
 154 };
 155
 156 /*
 157  * VF data structure
 158  */
 159 struct bfad_vf_s {
 160         bfa_fcs_vf_t    fcs_vf;
 161         struct bfad_port_s    base_port;        /* base port for vf */
 162         struct bfad_s   *bfad;
 163 };
 164
 165 struct bfad_cfg_param_s {
 166         u32     rport_del_timeout;
 167         u32     ioc_queue_depth;
 168         u32     lun_queue_depth;
 169         u32     io_max_sge;
 170         u32     binding_method;
 171 };
 172
 173 union bfad_tmp_buf {
 174         /* From struct bfa_adapter_attr_s */
 175         char            manufacturer[BFA_ADAPTER_MFG_NAME_LEN];
 176         char            serial_num[BFA_ADAPTER_SERIAL_NUM_LEN];
 177         char            model[BFA_ADAPTER_MODEL_NAME_LEN];
 178         char            fw_ver[BFA_VERSION_LEN];
 179         char            optrom_ver[BFA_VERSION_LEN];
 180
 181         /* From struct bfa_ioc_pci_attr_s */
 182         u8              chip_rev[BFA_IOC_CHIP_REV_LEN];  /*  chip revision */
 183
 184         wwn_t           wwn[BFA_FCS_MAX_LPORTS];
 185 };
 186
 187 /*
 188  * BFAD (PCI function) data structure
 189  */
 190 struct bfad_s {
 191         bfa_sm_t        sm;     /* state machine */
 192         struct list_head list_entry;
 193         struct bfa_s    bfa;
 194         struct bfa_fcs_s bfa_fcs;
 195         struct pci_dev *pcidev;
 196         const char *pci_name;
 197         struct bfa_pcidev_s hal_pcidev;
 198         struct bfa_ioc_pci_attr_s pci_attr;
 199         void __iomem   *pci_bar0_kva;
 200         void __iomem   *pci_bar2_kva;
 201         struct completion comp;
 202         struct completion suspend;
 203         struct completion enable_comp;
 204         struct completion disable_comp;
 205         bfa_boolean_t   disable_active;
 206         struct bfad_port_s     pport;   /* physical port of the BFAD */
 207         struct bfa_meminfo_s meminfo;
 208         struct bfa_iocfc_cfg_s   ioc_cfg;
 209         u32     inst_no;        /* BFAD instance number */
 210         u32     bfad_flags;
 211         spinlock_t      bfad_lock;
 212         struct task_struct *bfad_tsk;
 213         struct bfad_cfg_param_s cfg_data;
 214         struct bfad_msix_s msix_tab[MAX_MSIX_ENTRY];
 215         int             nvec;
 216         char    adapter_name[BFA_ADAPTER_SYM_NAME_LEN];
 217         char    port_name[BFA_ADAPTER_SYM_NAME_LEN];
 218         struct timer_list hal_tmo;
 219         unsigned long   hs_start;
 220         struct bfad_im_s *im;           /* IM specific data */
 221         struct bfa_trc_mod_s  *trcmod;
 222         struct bfa_plog_s      plog_buf;
 223         int             ref_count;
 224         union bfad_tmp_buf tmp_buf;
 225         struct fc_host_statistics link_stats;
 226         struct list_head pbc_vport_list;
 227         /* debugfs specific data */
 228         char *regdata;
 229         u32 reglen;
 230         struct dentry *bfad_dentry_files[5];
 231         struct list_head        free_aen_q;
 232         struct list_head        active_aen_q;
 233         struct bfa_aen_entry_s  aen_list[BFA_AEN_MAX_ENTRY];
 234         spinlock_t              bfad_aen_spinlock;
 235         struct list_head        vport_list;
 236 };
 237
 238 /* BFAD state machine events */
 239 enum bfad_sm_event {
 240         BFAD_E_CREATE                   = 1,
 241         BFAD_E_KTHREAD_CREATE_FAILED    = 2,
 242         BFAD_E_INIT                     = 3,
 243         BFAD_E_INIT_SUCCESS             = 4,
 244         BFAD_E_HAL_INIT_FAILED          = 5,
 245         BFAD_E_INIT_FAILED              = 6,
 246         BFAD_E_FCS_EXIT_COMP            = 7,
 247         BFAD_E_EXIT_COMP                = 8,
 248         BFAD_E_STOP                     = 9
 249 };
 250
 251 /*
 252  * RPORT data structure
 253  */
 254 struct bfad_rport_s {
 255         struct bfa_fcs_rport_s fcs_rport;
 256 };
 257
 258 struct bfad_buf_info {
 259         void            *virt;
 260         dma_addr_t      phys;
 261         u32     size;
 262 };
 263
 264 struct bfad_fcxp {
 265         struct bfad_port_s    *port;
 266         struct bfa_rport_s *bfa_rport;
 267         bfa_status_t    req_status;
 268         u16     tag;
 269         u16     rsp_len;
 270         u16     rsp_maxlen;
 271         u8              use_ireqbuf;
 272         u8              use_irspbuf;
 273         u32     num_req_sgles;
 274         u32     num_rsp_sgles;
 275         struct fchs_s   fchs;
 276         void            *reqbuf_info;
 277         void            *rspbuf_info;
 278         struct bfa_sge_s  *req_sge;
 279         struct bfa_sge_s  *rsp_sge;
 280         fcxp_send_cb_t  send_cbfn;
 281         void            *send_cbarg;
 282         void            *bfa_fcxp;
 283         struct completion comp;
 284 };
 285
 286 struct bfad_hal_comp {
 287         bfa_status_t    status;
 288         struct completion comp;
 289 };
 290
 291 #define BFA_LOG(level, bfad, mask, fmt, arg...)                         \
 292 do {                                                                    \
 293         if (((mask) == 4) || (level[1] <= '4'))                         \
 294                 dev_printk(level, &((bfad)->pcidev)->dev, fmt, ##arg);  \
 295 } while (0)
 296
 297 bfa_status_t    bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
 298                                   struct bfa_lport_cfg_s *port_cfg,
 299                                   struct device *dev);
 300 bfa_status_t    bfad_vf_create(struct bfad_s *bfad, u16 vf_id,
 301                                struct bfa_lport_cfg_s *port_cfg);
 302 bfa_status_t    bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role);
 303 bfa_status_t    bfad_drv_init(struct bfad_s *bfad);
 304 bfa_status_t    bfad_start_ops(struct bfad_s *bfad);
 305 void            bfad_drv_start(struct bfad_s *bfad);
 306 void            bfad_uncfg_pport(struct bfad_s *bfad);
 307 void            bfad_stop(struct bfad_s *bfad);
 308 void            bfad_fcs_stop(struct bfad_s *bfad);
 309 void            bfad_remove_intr(struct bfad_s *bfad);
 310 void            bfad_hal_mem_release(struct bfad_s *bfad);
 311 void            bfad_hcb_comp(void *arg, bfa_status_t status);
 312
 313 int             bfad_setup_intr(struct bfad_s *bfad);
 314 void            bfad_remove_intr(struct bfad_s *bfad);
 315 void            bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg);
 316 bfa_status_t    bfad_hal_mem_alloc(struct bfad_s *bfad);
 317 void            bfad_bfa_tmo(struct timer_list *t);
 318 void            bfad_init_timer(struct bfad_s *bfad);
 319 int             bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad);
 320 void            bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad);
 321 void            bfad_drv_uninit(struct bfad_s *bfad);
 322 int             bfad_worker(void *ptr);
 323 void            bfad_debugfs_init(struct bfad_port_s *port);
 324 void            bfad_debugfs_exit(struct bfad_port_s *port);
 325
 326 void bfad_pci_remove(struct pci_dev *pdev);
 327 int bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid);
 328 void bfad_rport_online_wait(struct bfad_s *bfad);
 329 int bfad_get_linkup_delay(struct bfad_s *bfad);
 330 int bfad_install_msix_handler(struct bfad_s *bfad);
 331
 332 extern struct idr bfad_im_port_index;
 333 extern struct pci_device_id bfad_id_table[];
 334 extern struct list_head bfad_list;
 335 extern char     *os_name;
 336 extern char     *os_patch;
 337 extern char     *host_name;
 338 extern int      num_rports;
 339 extern int      num_ios;
 340 extern int      num_tms;
 341 extern int      num_fcxps;
 342 extern int      num_ufbufs;
 343 extern int      reqq_size;
 344 extern int      rspq_size;
 345 extern int      num_sgpgs;
 346 extern int      rport_del_timeout;
 347 extern int      bfa_lun_queue_depth;
 348 extern int      bfa_io_max_sge;
 349 extern int      bfa_log_level;
 350 extern int      ioc_auto_recover;
 351 extern int      bfa_linkup_delay;
 352 extern int      msix_disable_cb;
 353 extern int      msix_disable_ct;
 354 extern int      fdmi_enable;
 355 extern int      supported_fc4s;
 356 extern int      pcie_max_read_reqsz;
 357 extern int      max_xfer_size;
 358 extern int bfa_debugfs_enable;
 359 extern struct mutex bfad_mutex;
 360
 361 #endif /* __BFAD_DRV_H__ */