1 /* 2 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. 3 * All rights reserved 4 * www.brocade.com 5 * 6 * Linux driver for Brocade Fibre Channel Host Bus Adapter. 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License (GPL) Version 2 as 10 * published by the Free Software Foundation 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 */ 17 18 /* 19 * Contains base driver definitions. 20 */ 21 22 /* 23 * bfa_drv.h Linux driver data structures. 24 */ 25 26 #ifndef __BFAD_DRV_H__ 27 #define __BFAD_DRV_H__ 28 29 #include <linux/types.h> 30 #include <linux/pci.h> 31 #include <linux/dma-mapping.h> 32 #include <linux/idr.h> 33 #include <linux/interrupt.h> 34 #include <linux/cdev.h> 35 #include <linux/fs.h> 36 #include <linux/delay.h> 37 #include <linux/vmalloc.h> 38 #include <linux/workqueue.h> 39 #include <linux/bitops.h> 40 #include <linux/aer.h> 41 #include <scsi/scsi.h> 42 #include <scsi/scsi_host.h> 43 #include <scsi/scsi_tcq.h> 44 #include <scsi/scsi_transport_fc.h> 45 #include <scsi/scsi_transport.h> 46 #include <scsi/scsi_bsg_fc.h> 47 #include <scsi/scsi_devinfo.h> 48 49 #include "bfa_modules.h" 50 #include "bfa_fcs.h" 51 #include "bfa_defs_fcs.h" 52 53 #include "bfa_plog.h" 54 #include "bfa_cs.h" 55 56 #define BFAD_DRIVER_NAME "bfa" 57 #ifdef BFA_DRIVER_VERSION 58 #define BFAD_DRIVER_VERSION BFA_DRIVER_VERSION 59 #else 60 #define BFAD_DRIVER_VERSION "3.2.21.1" 61 #endif 62 63 #define BFAD_PROTO_NAME FCPI_NAME 64 #define BFAD_IRQ_FLAGS IRQF_SHARED 65 66 #ifndef FC_PORTSPEED_8GBIT 67 #define FC_PORTSPEED_8GBIT 0x10 68 #endif 69 70 /* 71 * BFAD flags 72 */ 73 #define BFAD_MSIX_ON 0x00000001 74 #define BFAD_HAL_INIT_DONE 0x00000002 75 #define BFAD_DRV_INIT_DONE 0x00000004 76 #define BFAD_CFG_PPORT_DONE 0x00000008 77 #define BFAD_HAL_START_DONE 0x00000010 78 #define BFAD_PORT_ONLINE 0x00000020 79 #define BFAD_RPORT_ONLINE 0x00000040 80 #define BFAD_FCS_INIT_DONE 0x00000080 81 #define BFAD_HAL_INIT_FAIL 0x00000100 82 #define BFAD_FC4_PROBE_DONE 0x00000200 83 #define BFAD_PORT_DELETE 0x00000001 84 #define BFAD_INTX_ON 0x00000400 85 #define BFAD_EEH_BUSY 0x00000800 86 #define BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE 0x00001000 87 /* 88 * BFAD related definition 89 */ 90 #define SCSI_SCAN_DELAY HZ 91 #define BFAD_STOP_TIMEOUT 30 92 #define BFAD_SUSPEND_TIMEOUT BFAD_STOP_TIMEOUT 93 94 /* 95 * BFAD configuration parameter default values 96 */ 97 #define BFAD_LUN_QUEUE_DEPTH 32 98 #define BFAD_IO_MAX_SGE SG_ALL 99 #define BFAD_MIN_SECTORS 128 /* 64k */ 100 #define BFAD_MAX_SECTORS 0xFFFF /* 32 MB */ 101 102 #define bfad_isr_t irq_handler_t 103 104 #define MAX_MSIX_ENTRY 22 105 106 struct bfad_msix_s { 107 struct bfad_s *bfad; 108 struct msix_entry msix; 109 char name[32]; 110 }; 111 112 /* 113 * Only append to the enums defined here to avoid any versioning 114 * needed between trace utility and driver version 115 */ 116 enum { 117 BFA_TRC_LDRV_BFAD = 1, 118 BFA_TRC_LDRV_IM = 2, 119 BFA_TRC_LDRV_BSG = 3, 120 }; 121 122 enum bfad_port_pvb_type { 123 BFAD_PORT_PHYS_BASE = 0, 124 BFAD_PORT_PHYS_VPORT = 1, 125 BFAD_PORT_VF_BASE = 2, 126 BFAD_PORT_VF_VPORT = 3, 127 }; 128 129 /* 130 * PORT data structure 131 */ 132 struct bfad_port_s { 133 struct list_head list_entry; 134 struct bfad_s *bfad; 135 struct bfa_fcs_lport_s *fcs_port; 136 u32 roles; 137 s32 flags; 138 u32 supported_fc4s; 139 enum bfad_port_pvb_type pvb_type; 140 struct bfad_im_port_s *im_port; /* IM specific data */ 141 /* port debugfs specific data */ 142 struct dentry *port_debugfs_root; 143 }; 144 145 /* 146 * VPORT data structure 147 */ 148 struct bfad_vport_s { 149 struct bfad_port_s drv_port; 150 struct bfa_fcs_vport_s fcs_vport; 151 struct completion *comp_del; 152 struct list_head list_entry; 153 }; 154 155 /* 156 * VF data structure 157 */ 158 struct bfad_vf_s { 159 bfa_fcs_vf_t fcs_vf; 160 struct bfad_port_s base_port; /* base port for vf */ 161 struct bfad_s *bfad; 162 }; 163 164 struct bfad_cfg_param_s { 165 u32 rport_del_timeout; 166 u32 ioc_queue_depth; 167 u32 lun_queue_depth; 168 u32 io_max_sge; 169 u32 binding_method; 170 }; 171 172 union bfad_tmp_buf { 173 /* From struct bfa_adapter_attr_s */ 174 char manufacturer[BFA_ADAPTER_MFG_NAME_LEN]; 175 char serial_num[BFA_ADAPTER_SERIAL_NUM_LEN]; 176 char model[BFA_ADAPTER_MODEL_NAME_LEN]; 177 char fw_ver[BFA_VERSION_LEN]; 178 char optrom_ver[BFA_VERSION_LEN]; 179 180 /* From struct bfa_ioc_pci_attr_s */ 181 u8 chip_rev[BFA_IOC_CHIP_REV_LEN]; /* chip revision */ 182 183 wwn_t wwn[BFA_FCS_MAX_LPORTS]; 184 }; 185 186 /* 187 * BFAD (PCI function) data structure 188 */ 189 struct bfad_s { 190 bfa_sm_t sm; /* state machine */ 191 struct list_head list_entry; 192 struct bfa_s bfa; 193 struct bfa_fcs_s bfa_fcs; 194 struct pci_dev *pcidev; 195 const char *pci_name; 196 struct bfa_pcidev_s hal_pcidev; 197 struct bfa_ioc_pci_attr_s pci_attr; 198 void __iomem *pci_bar0_kva; 199 void __iomem *pci_bar2_kva; 200 struct completion comp; 201 struct completion suspend; 202 struct completion enable_comp; 203 struct completion disable_comp; 204 bfa_boolean_t disable_active; 205 struct bfad_port_s pport; /* physical port of the BFAD */ 206 struct bfa_meminfo_s meminfo; 207 struct bfa_iocfc_cfg_s ioc_cfg; 208 u32 inst_no; /* BFAD instance number */ 209 u32 bfad_flags; 210 spinlock_t bfad_lock; 211 struct task_struct *bfad_tsk; 212 struct bfad_cfg_param_s cfg_data; 213 struct bfad_msix_s msix_tab[MAX_MSIX_ENTRY]; 214 int nvec; 215 char adapter_name[BFA_ADAPTER_SYM_NAME_LEN]; 216 char port_name[BFA_ADAPTER_SYM_NAME_LEN]; 217 struct timer_list hal_tmo; 218 unsigned long hs_start; 219 struct bfad_im_s *im; /* IM specific data */ 220 struct bfa_trc_mod_s *trcmod; 221 struct bfa_plog_s plog_buf; 222 int ref_count; 223 union bfad_tmp_buf tmp_buf; 224 struct fc_host_statistics link_stats; 225 struct list_head pbc_vport_list; 226 /* debugfs specific data */ 227 char *regdata; 228 u32 reglen; 229 struct dentry *bfad_dentry_files[5]; 230 struct list_head free_aen_q; 231 struct list_head active_aen_q; 232 struct bfa_aen_entry_s aen_list[BFA_AEN_MAX_ENTRY]; 233 spinlock_t bfad_aen_spinlock; 234 struct list_head vport_list; 235 }; 236 237 /* BFAD state machine events */ 238 enum bfad_sm_event { 239 BFAD_E_CREATE = 1, 240 BFAD_E_KTHREAD_CREATE_FAILED = 2, 241 BFAD_E_INIT = 3, 242 BFAD_E_INIT_SUCCESS = 4, 243 BFAD_E_INIT_FAILED = 5, 244 BFAD_E_INTR_INIT_FAILED = 6, 245 BFAD_E_FCS_EXIT_COMP = 7, 246 BFAD_E_EXIT_COMP = 8, 247 BFAD_E_STOP = 9 248 }; 249 250 /* 251 * RPORT data structure 252 */ 253 struct bfad_rport_s { 254 struct bfa_fcs_rport_s fcs_rport; 255 }; 256 257 struct bfad_buf_info { 258 void *virt; 259 dma_addr_t phys; 260 u32 size; 261 }; 262 263 struct bfad_fcxp { 264 struct bfad_port_s *port; 265 struct bfa_rport_s *bfa_rport; 266 bfa_status_t req_status; 267 u16 tag; 268 u16 rsp_len; 269 u16 rsp_maxlen; 270 u8 use_ireqbuf; 271 u8 use_irspbuf; 272 u32 num_req_sgles; 273 u32 num_rsp_sgles; 274 struct fchs_s fchs; 275 void *reqbuf_info; 276 void *rspbuf_info; 277 struct bfa_sge_s *req_sge; 278 struct bfa_sge_s *rsp_sge; 279 fcxp_send_cb_t send_cbfn; 280 void *send_cbarg; 281 void *bfa_fcxp; 282 struct completion comp; 283 }; 284 285 struct bfad_hal_comp { 286 bfa_status_t status; 287 struct completion comp; 288 }; 289 290 #define BFA_LOG(level, bfad, mask, fmt, arg...) \ 291 do { \ 292 if (((mask) == 4) || (level[1] <= '4')) \ 293 dev_printk(level, &((bfad)->pcidev)->dev, fmt, ##arg); \ 294 } while (0) 295 296 bfa_status_t bfad_vport_create(struct bfad_s *bfad, u16 vf_id, 297 struct bfa_lport_cfg_s *port_cfg, 298 struct device *dev); 299 bfa_status_t bfad_vf_create(struct bfad_s *bfad, u16 vf_id, 300 struct bfa_lport_cfg_s *port_cfg); 301 bfa_status_t bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role); 302 bfa_status_t bfad_drv_init(struct bfad_s *bfad); 303 bfa_status_t bfad_start_ops(struct bfad_s *bfad); 304 void bfad_drv_start(struct bfad_s *bfad); 305 void bfad_uncfg_pport(struct bfad_s *bfad); 306 void bfad_stop(struct bfad_s *bfad); 307 void bfad_fcs_stop(struct bfad_s *bfad); 308 void bfad_remove_intr(struct bfad_s *bfad); 309 void bfad_hal_mem_release(struct bfad_s *bfad); 310 void bfad_hcb_comp(void *arg, bfa_status_t status); 311 312 int bfad_setup_intr(struct bfad_s *bfad); 313 void bfad_remove_intr(struct bfad_s *bfad); 314 void bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg); 315 bfa_status_t bfad_hal_mem_alloc(struct bfad_s *bfad); 316 void bfad_bfa_tmo(unsigned long data); 317 void bfad_init_timer(struct bfad_s *bfad); 318 int bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad); 319 void bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad); 320 void bfad_drv_uninit(struct bfad_s *bfad); 321 int bfad_worker(void *ptr); 322 void bfad_debugfs_init(struct bfad_port_s *port); 323 void bfad_debugfs_exit(struct bfad_port_s *port); 324 325 void bfad_pci_remove(struct pci_dev *pdev); 326 int bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid); 327 void bfad_rport_online_wait(struct bfad_s *bfad); 328 int bfad_get_linkup_delay(struct bfad_s *bfad); 329 int bfad_install_msix_handler(struct bfad_s *bfad); 330 331 extern struct idr bfad_im_port_index; 332 extern struct pci_device_id bfad_id_table[]; 333 extern struct list_head bfad_list; 334 extern char *os_name; 335 extern char *os_patch; 336 extern char *host_name; 337 extern int num_rports; 338 extern int num_ios; 339 extern int num_tms; 340 extern int num_fcxps; 341 extern int num_ufbufs; 342 extern int reqq_size; 343 extern int rspq_size; 344 extern int num_sgpgs; 345 extern int rport_del_timeout; 346 extern int bfa_lun_queue_depth; 347 extern int bfa_io_max_sge; 348 extern int bfa_log_level; 349 extern int ioc_auto_recover; 350 extern int bfa_linkup_delay; 351 extern int msix_disable_cb; 352 extern int msix_disable_ct; 353 extern int fdmi_enable; 354 extern int supported_fc4s; 355 extern int pcie_max_read_reqsz; 356 extern int max_xfer_size; 357 extern int bfa_debugfs_enable; 358 extern struct mutex bfad_mutex; 359 360 #endif /* __BFAD_DRV_H__ */ 361