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 "3.2.25.0" 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(unsigned long data); 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__ */ 362