drivers/scsi/bfa/bfad_drv.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
   4  * Copyright (c) 2014- QLogic Corporation.
   5  * All rights reserved
   6  * www.qlogic.com
   7  *
   8  * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
   9  */
  10
  11 /*
  12  * Contains base driver definitions.
  13  */
  14
  15 /*
  16  *  bfa_drv.h Linux driver data structures.
  17  */
  18
  19 #ifndef __BFAD_DRV_H__
  20 #define __BFAD_DRV_H__
  21
  22 #include <linux/types.h>
  23 #include <linux/pci.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/idr.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/cdev.h>
  28 #include <linux/fs.h>
  29 #include <linux/delay.h>
  30 #include <linux/vmalloc.h>
  31 #include <linux/workqueue.h>
  32 #include <linux/bitops.h>
  33 #include <scsi/scsi.h>
  34 #include <scsi/scsi_host.h>
  35 #include <scsi/scsi_tcq.h>
  36 #include <scsi/scsi_transport_fc.h>
  37 #include <scsi/scsi_transport.h>
  38 #include <scsi/scsi_bsg_fc.h>
  39 #include <scsi/scsi_devinfo.h>
  40
  41 #include "bfa_modules.h"
  42 #include "bfa_fcs.h"
  43 #include "bfa_defs_fcs.h"
  44
  45 #include "bfa_plog.h"
  46 #include "bfa_cs.h"
  47
  48 #define BFAD_DRIVER_NAME        "bfa"
  49 #ifdef BFA_DRIVER_VERSION
  50 #define BFAD_DRIVER_VERSION    BFA_DRIVER_VERSION
  51 #else
  52 #define BFAD_DRIVER_VERSION    "3.2.25.1"
  53 #endif
  54
  55 #define BFAD_PROTO_NAME FCPI_NAME
  56 #define BFAD_IRQ_FLAGS IRQF_SHARED
  57
  58 #ifndef FC_PORTSPEED_8GBIT
  59 #define FC_PORTSPEED_8GBIT 0x10
  60 #endif
  61
  62 /*
  63  * BFAD flags
  64  */
  65 #define BFAD_MSIX_ON                            0x00000001
  66 #define BFAD_HAL_INIT_DONE                      0x00000002
  67 #define BFAD_DRV_INIT_DONE                      0x00000004
  68 #define BFAD_CFG_PPORT_DONE                     0x00000008
  69 #define BFAD_HAL_START_DONE                     0x00000010
  70 #define BFAD_PORT_ONLINE                        0x00000020
  71 #define BFAD_RPORT_ONLINE                       0x00000040
  72 #define BFAD_FCS_INIT_DONE                      0x00000080
  73 #define BFAD_HAL_INIT_FAIL                      0x00000100
  74 #define BFAD_FC4_PROBE_DONE                     0x00000200
  75 #define BFAD_PORT_DELETE                        0x00000001
  76 #define BFAD_INTX_ON                            0x00000400
  77 #define BFAD_EEH_BUSY                           0x00000800
  78 #define BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE    0x00001000
  79 /*
  80  * BFAD related definition
  81  */
  82 #define SCSI_SCAN_DELAY         HZ
  83 #define BFAD_STOP_TIMEOUT       30
  84 #define BFAD_SUSPEND_TIMEOUT    BFAD_STOP_TIMEOUT
  85
  86 /*
  87  * BFAD configuration parameter default values
  88  */
  89 #define BFAD_LUN_QUEUE_DEPTH    32
  90 #define BFAD_IO_MAX_SGE         SG_ALL
  91 #define BFAD_MIN_SECTORS        128 /* 64k   */
  92 #define BFAD_MAX_SECTORS        0xFFFF  /* 32 MB */
  93
  94 #define bfad_isr_t irq_handler_t
  95
  96 #define MAX_MSIX_ENTRY 22
  97
  98 struct bfad_msix_s {
  99         struct bfad_s *bfad;
 100         struct msix_entry msix;
 101         char name[32];
 102 };
 103
 104 /*
 105  * Only append to the enums defined here to avoid any versioning
 106  * needed between trace utility and driver version
 107  */
 108 enum {
 109         BFA_TRC_LDRV_BFAD               = 1,
 110         BFA_TRC_LDRV_IM                 = 2,
 111         BFA_TRC_LDRV_BSG                = 3,
 112 };
 113
 114 enum bfad_port_pvb_type {
 115         BFAD_PORT_PHYS_BASE = 0,
 116         BFAD_PORT_PHYS_VPORT = 1,
 117         BFAD_PORT_VF_BASE = 2,
 118         BFAD_PORT_VF_VPORT = 3,
 119 };
 120
 121 /*
 122  * PORT data structure
 123  */
 124 struct bfad_port_s {
 125         struct list_head list_entry;
 126         struct bfad_s   *bfad;
 127         struct bfa_fcs_lport_s *fcs_port;
 128         u32     roles;
 129         s32             flags;
 130         u32     supported_fc4s;
 131         enum bfad_port_pvb_type pvb_type;
 132         struct bfad_im_port_s *im_port; /* IM specific data */
 133         /* port debugfs specific data */
 134         struct dentry *port_debugfs_root;
 135 };
 136
 137 /*
 138  * VPORT data structure
 139  */
 140 struct bfad_vport_s {
 141         struct bfad_port_s     drv_port;
 142         struct bfa_fcs_vport_s fcs_vport;
 143         struct completion *comp_del;
 144         struct list_head list_entry;
 145 };
 146
 147 /*
 148  * VF data structure
 149  */
 150 struct bfad_vf_s {
 151         bfa_fcs_vf_t    fcs_vf;
 152         struct bfad_port_s    base_port;        /* base port for vf */
 153         struct bfad_s   *bfad;
 154 };
 155
 156 struct bfad_cfg_param_s {
 157         u32     rport_del_timeout;
 158         u32     ioc_queue_depth;
 159         u32     lun_queue_depth;
 160         u32     io_max_sge;
 161         u32     binding_method;
 162 };
 163
 164 union bfad_tmp_buf {
 165         /* From struct bfa_adapter_attr_s */
 166         char            manufacturer[BFA_ADAPTER_MFG_NAME_LEN];
 167         char            serial_num[BFA_ADAPTER_SERIAL_NUM_LEN];
 168         char            model[BFA_ADAPTER_MODEL_NAME_LEN];
 169         char            fw_ver[BFA_VERSION_LEN];
 170         char            optrom_ver[BFA_VERSION_LEN];
 171
 172         /* From struct bfa_ioc_pci_attr_s */
 173         u8              chip_rev[BFA_IOC_CHIP_REV_LEN];  /*  chip revision */
 174
 175         wwn_t           wwn[BFA_FCS_MAX_LPORTS];
 176 };
 177
 178 /* BFAD state machine events */
 179 enum bfad_sm_event {
 180         BFAD_E_CREATE                   = 1,
 181         BFAD_E_KTHREAD_CREATE_FAILED    = 2,
 182         BFAD_E_INIT                     = 3,
 183         BFAD_E_INIT_SUCCESS             = 4,
 184         BFAD_E_HAL_INIT_FAILED          = 5,
 185         BFAD_E_INIT_FAILED              = 6,
 186         BFAD_E_FCS_EXIT_COMP            = 7,
 187         BFAD_E_EXIT_COMP                = 8,
 188         BFAD_E_STOP                     = 9
 189 };
 190
 191 struct bfad_s;
 192 typedef void (*bfad_sm_t)(struct bfad_s *, enum bfad_sm_event);
 193
 194 /*
 195  * BFAD (PCI function) data structure
 196  */
 197 struct bfad_s {
 198         bfad_sm_t       sm;     /* state machine */
 199         struct list_head list_entry;
 200         struct bfa_s    bfa;
 201         struct bfa_fcs_s bfa_fcs;
 202         struct pci_dev *pcidev;
 203         const char *pci_name;
 204         struct bfa_pcidev_s hal_pcidev;
 205         struct bfa_ioc_pci_attr_s pci_attr;
 206         void __iomem   *pci_bar0_kva;
 207         void __iomem   *pci_bar2_kva;
 208         struct completion comp;
 209         struct completion suspend;
 210         struct completion enable_comp;
 211         struct completion disable_comp;
 212         bfa_boolean_t   disable_active;
 213         struct bfad_port_s     pport;   /* physical port of the BFAD */
 214         struct bfa_meminfo_s meminfo;
 215         struct bfa_iocfc_cfg_s   ioc_cfg;
 216         u32     inst_no;        /* BFAD instance number */
 217         u32     bfad_flags;
 218         spinlock_t      bfad_lock;
 219         struct task_struct *bfad_tsk;
 220         struct bfad_cfg_param_s cfg_data;
 221         struct bfad_msix_s msix_tab[MAX_MSIX_ENTRY];
 222         int             nvec;
 223         char    adapter_name[BFA_ADAPTER_SYM_NAME_LEN];
 224         char    port_name[BFA_ADAPTER_SYM_NAME_LEN];
 225         struct timer_list hal_tmo;
 226         unsigned long   hs_start;
 227         struct bfad_im_s *im;           /* IM specific data */
 228         struct bfa_trc_mod_s  *trcmod;
 229         struct bfa_plog_s      plog_buf;
 230         int             ref_count;
 231         union bfad_tmp_buf tmp_buf;
 232         struct fc_host_statistics link_stats;
 233         struct list_head pbc_vport_list;
 234         /* debugfs specific data */
 235         char *regdata;
 236         u32 reglen;
 237         struct dentry *bfad_dentry_files[5];
 238         struct list_head        free_aen_q;
 239         struct list_head        active_aen_q;
 240         struct bfa_aen_entry_s  aen_list[BFA_AEN_MAX_ENTRY];
 241         spinlock_t              bfad_aen_spinlock;
 242         struct list_head        vport_list;
 243 };
 244
 245 /*
 246  * RPORT data structure
 247  */
 248 struct bfad_rport_s {
 249         struct bfa_fcs_rport_s fcs_rport;
 250 };
 251
 252 struct bfad_buf_info {
 253         void            *virt;
 254         dma_addr_t      phys;
 255         u32     size;
 256 };
 257
 258 struct bfad_fcxp {
 259         struct bfad_port_s    *port;
 260         struct bfa_rport_s *bfa_rport;
 261         bfa_status_t    req_status;
 262         u16     tag;
 263         u16     rsp_len;
 264         u16     rsp_maxlen;
 265         u8              use_ireqbuf;
 266         u8              use_irspbuf;
 267         u32     num_req_sgles;
 268         u32     num_rsp_sgles;
 269         struct fchs_s   fchs;
 270         void            *reqbuf_info;
 271         void            *rspbuf_info;
 272         struct bfa_sge_s  *req_sge;
 273         struct bfa_sge_s  *rsp_sge;
 274         fcxp_send_cb_t  send_cbfn;
 275         void            *send_cbarg;
 276         void            *bfa_fcxp;
 277         struct completion comp;
 278 };
 279
 280 struct bfad_hal_comp {
 281         bfa_status_t    status;
 282         struct completion comp;
 283 };
 284
 285 #define BFA_LOG(level, bfad, mask, fmt, arg...)                         \
 286 do {                                                                    \
 287         if (((mask) == 4) || (level[1] <= '4'))                         \
 288                 dev_printk(level, &((bfad)->pcidev)->dev, fmt, ##arg);  \
 289 } while (0)
 290
 291 bfa_status_t    bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
 292                                   struct bfa_lport_cfg_s *port_cfg,
 293                                   struct device *dev);
 294 bfa_status_t    bfad_vf_create(struct bfad_s *bfad, u16 vf_id,
 295                                struct bfa_lport_cfg_s *port_cfg);
 296 bfa_status_t    bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role);
 297 bfa_status_t    bfad_drv_init(struct bfad_s *bfad);
 298 bfa_status_t    bfad_start_ops(struct bfad_s *bfad);
 299 void            bfad_drv_start(struct bfad_s *bfad);
 300 void            bfad_uncfg_pport(struct bfad_s *bfad);
 301 void            bfad_stop(struct bfad_s *bfad);
 302 void            bfad_fcs_stop(struct bfad_s *bfad);
 303 void            bfad_remove_intr(struct bfad_s *bfad);
 304 void            bfad_hal_mem_release(struct bfad_s *bfad);
 305 void            bfad_hcb_comp(void *arg, bfa_status_t status);
 306
 307 int             bfad_setup_intr(struct bfad_s *bfad);
 308 void            bfad_remove_intr(struct bfad_s *bfad);
 309 void            bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg);
 310 bfa_status_t    bfad_hal_mem_alloc(struct bfad_s *bfad);
 311 void            bfad_bfa_tmo(struct timer_list *t);
 312 void            bfad_init_timer(struct bfad_s *bfad);
 313 int             bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad);
 314 void            bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad);
 315 int             bfad_worker(void *ptr);
 316 void            bfad_debugfs_init(struct bfad_port_s *port);
 317 void            bfad_debugfs_exit(struct bfad_port_s *port);
 318
 319 void bfad_pci_remove(struct pci_dev *pdev);
 320 int bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid);
 321 void bfad_rport_online_wait(struct bfad_s *bfad);
 322 int bfad_get_linkup_delay(struct bfad_s *bfad);
 323 int bfad_install_msix_handler(struct bfad_s *bfad);
 324
 325 extern struct idr bfad_im_port_index;
 326 extern struct pci_device_id bfad_id_table[];
 327 extern struct list_head bfad_list;
 328 extern char     *os_name;
 329 extern char     *os_patch;
 330 extern char     *host_name;
 331 extern int      num_rports;
 332 extern int      num_ios;
 333 extern int      num_tms;
 334 extern int      num_fcxps;
 335 extern int      num_ufbufs;
 336 extern int      reqq_size;
 337 extern int      rspq_size;
 338 extern int      num_sgpgs;
 339 extern int      rport_del_timeout;
 340 extern int      bfa_lun_queue_depth;
 341 extern int      bfa_io_max_sge;
 342 extern int      bfa_log_level;
 343 extern int      ioc_auto_recover;
 344 extern int      bfa_linkup_delay;
 345 extern int      msix_disable_cb;
 346 extern int      msix_disable_ct;
 347 extern int      fdmi_enable;
 348 extern int      supported_fc4s;
 349 extern int      pcie_max_read_reqsz;
 350 extern int      max_xfer_size;
 351 extern int bfa_debugfs_enable;
 352 extern struct mutex bfad_mutex;
 353
 354 #endif /* __BFAD_DRV_H__ */