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