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 #ifndef __BFAD_IM_H__ 12 #define __BFAD_IM_H__ 13 14 #include "bfa_fcs.h" 15 16 #define FCPI_NAME " fcpim" 17 18 #ifndef KOBJ_NAME_LEN 19 #define KOBJ_NAME_LEN 20 20 #endif 21 22 bfa_status_t bfad_im_module_init(void); 23 void bfad_im_module_exit(void); 24 bfa_status_t bfad_im_probe(struct bfad_s *bfad); 25 void bfad_im_probe_undo(struct bfad_s *bfad); 26 bfa_status_t bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port); 27 void bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port); 28 void bfad_im_port_clean(struct bfad_im_port_s *im_port); 29 int bfad_im_scsi_host_alloc(struct bfad_s *bfad, 30 struct bfad_im_port_s *im_port, struct device *dev); 31 void bfad_im_scsi_host_free(struct bfad_s *bfad, 32 struct bfad_im_port_s *im_port); 33 u32 bfad_im_supported_speeds(struct bfa_s *bfa); 34 35 #define MAX_FCP_TARGET 1024 36 #define MAX_FCP_LUN 16384 37 #define BFAD_TARGET_RESET_TMO 60 38 #define BFAD_LUN_RESET_TMO 60 39 #define BFA_QUEUE_FULL_RAMP_UP_TIME 120 40 41 /* 42 * itnim flags 43 */ 44 #define IO_DONE_BIT 0 45 46 struct bfad_itnim_data_s { 47 struct bfad_itnim_s *itnim; 48 }; 49 50 struct bfad_im_port_s { 51 struct bfad_s *bfad; 52 struct bfad_port_s *port; 53 struct work_struct port_delete_work; 54 int idr_id; 55 u16 cur_scsi_id; 56 u16 flags; 57 struct list_head binding_list; 58 struct Scsi_Host *shost; 59 struct list_head itnim_mapped_list; 60 struct fc_vport *fc_vport; 61 }; 62 63 struct bfad_im_port_pointer { 64 struct bfad_im_port_s *p; 65 }; 66 67 static inline struct bfad_im_port_s *bfad_get_im_port(struct Scsi_Host *host) 68 { 69 struct bfad_im_port_pointer *im_portp = shost_priv(host); 70 return im_portp->p; 71 } 72 73 enum bfad_itnim_state { 74 ITNIM_STATE_NONE, 75 ITNIM_STATE_ONLINE, 76 ITNIM_STATE_OFFLINE_PENDING, 77 ITNIM_STATE_OFFLINE, 78 ITNIM_STATE_TIMEOUT, 79 ITNIM_STATE_FREE, 80 }; 81 82 /* 83 * Per itnim data structure 84 */ 85 struct bfad_itnim_s { 86 struct list_head list_entry; 87 struct bfa_fcs_itnim_s fcs_itnim; 88 struct work_struct itnim_work; 89 u32 flags; 90 enum bfad_itnim_state state; 91 struct bfad_im_s *im; 92 struct bfad_im_port_s *im_port; 93 struct bfad_rport_s *drv_rport; 94 struct fc_rport *fc_rport; 95 struct bfa_itnim_s *bfa_itnim; 96 u16 scsi_tgt_id; 97 u16 channel; 98 u16 queue_work; 99 unsigned long last_ramp_up_time; 100 unsigned long last_queue_full_time; 101 }; 102 103 enum bfad_binding_type { 104 FCP_PWWN_BINDING = 0x1, 105 FCP_NWWN_BINDING = 0x2, 106 FCP_FCID_BINDING = 0x3, 107 }; 108 109 struct bfad_fcp_binding { 110 struct list_head list_entry; 111 enum bfad_binding_type binding_type; 112 u16 scsi_target_id; 113 u32 fc_id; 114 wwn_t nwwn; 115 wwn_t pwwn; 116 }; 117 118 struct bfad_im_s { 119 struct bfad_s *bfad; 120 struct workqueue_struct *drv_workq; 121 char drv_workq_name[KOBJ_NAME_LEN]; 122 struct work_struct aen_im_notify_work; 123 }; 124 125 #define bfad_get_aen_entry(_drv, _entry) do { \ 126 unsigned long _flags; \ 127 spin_lock_irqsave(&(_drv)->bfad_aen_spinlock, _flags); \ 128 bfa_q_deq(&(_drv)->free_aen_q, &(_entry)); \ 129 if (_entry) \ 130 list_add_tail(&(_entry)->qe, &(_drv)->active_aen_q); \ 131 spin_unlock_irqrestore(&(_drv)->bfad_aen_spinlock, _flags); \ 132 } while (0) 133 134 /* post fc_host vendor event */ 135 static inline void bfad_im_post_vendor_event(struct bfa_aen_entry_s *entry, 136 struct bfad_s *drv, int cnt, 137 enum bfa_aen_category cat, 138 int evt) 139 { 140 struct timespec64 ts; 141 142 ktime_get_real_ts64(&ts); 143 /* 144 * 'unsigned long aen_tv_sec' overflows in y2106 on 32-bit 145 * architectures, or in 2038 if user space interprets it 146 * as 'signed'. 147 */ 148 entry->aen_tv_sec = ts.tv_sec; 149 entry->aen_tv_usec = ts.tv_nsec / NSEC_PER_USEC; 150 entry->bfad_num = drv->inst_no; 151 entry->seq_num = cnt; 152 entry->aen_category = cat; 153 entry->aen_type = evt; 154 if (drv->bfad_flags & BFAD_FC4_PROBE_DONE) 155 queue_work(drv->im->drv_workq, &drv->im->aen_im_notify_work); 156 } 157 158 struct Scsi_Host *bfad_scsi_host_alloc(struct bfad_im_port_s *im_port, 159 struct bfad_s *); 160 bfa_status_t bfad_thread_workq(struct bfad_s *bfad); 161 void bfad_destroy_workq(struct bfad_im_s *im); 162 void bfad_fc_host_init(struct bfad_im_port_s *im_port); 163 void bfad_scsi_host_free(struct bfad_s *bfad, 164 struct bfad_im_port_s *im_port); 165 void bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, 166 struct scsi_device *sdev); 167 void bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev); 168 struct bfad_itnim_s *bfad_get_itnim(struct bfad_im_port_s *im_port, int id); 169 170 extern struct scsi_host_template bfad_im_scsi_host_template; 171 extern struct scsi_host_template bfad_im_vport_template; 172 extern struct fc_function_template bfad_im_fc_function_template; 173 extern struct fc_function_template bfad_im_vport_fc_function_template; 174 extern struct scsi_transport_template *bfad_im_scsi_transport_template; 175 extern struct scsi_transport_template *bfad_im_scsi_vport_transport_template; 176 177 extern struct device_attribute *bfad_im_host_attrs[]; 178 extern struct device_attribute *bfad_im_vport_attrs[]; 179 180 irqreturn_t bfad_intx(int irq, void *dev_id); 181 182 int bfad_im_bsg_request(struct bsg_job *job); 183 int bfad_im_bsg_timeout(struct bsg_job *job); 184 185 /* 186 * Macro to set the SCSI device sdev_bflags - sdev_bflags are used by the 187 * SCSI mid-layer to choose LUN Scanning mode REPORT_LUNS vs. Sequential Scan 188 * 189 * Internally iterate's over all the ITNIM's part of the im_port & set's the 190 * sdev_bflags for the scsi_device associated with LUN #0. 191 */ 192 #define bfad_reset_sdev_bflags(__im_port, __lunmask_cfg) do { \ 193 struct scsi_device *__sdev = NULL; \ 194 struct bfad_itnim_s *__itnim = NULL; \ 195 u32 scan_flags = BLIST_NOREPORTLUN | BLIST_SPARSELUN; \ 196 list_for_each_entry(__itnim, &((__im_port)->itnim_mapped_list), \ 197 list_entry) { \ 198 __sdev = scsi_device_lookup((__im_port)->shost, \ 199 __itnim->channel, \ 200 __itnim->scsi_tgt_id, 0); \ 201 if (__sdev) { \ 202 if ((__lunmask_cfg) == BFA_TRUE) \ 203 __sdev->sdev_bflags |= scan_flags; \ 204 else \ 205 __sdev->sdev_bflags &= ~scan_flags; \ 206 scsi_device_put(__sdev); \ 207 } \ 208 } \ 209 } while (0) 210 211 #endif 212