1 /* 2 * Copyright (c) 2005-2009 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 #ifndef __BFAD_IM_H__ 19 #define __BFAD_IM_H__ 20 21 #include "fcs/bfa_fcs_fcpim.h" 22 #include "bfad_im_compat.h" 23 24 #define FCPI_NAME " fcpim" 25 26 bfa_status_t bfad_im_module_init(void); 27 void bfad_im_module_exit(void); 28 bfa_status_t bfad_im_probe(struct bfad_s *bfad); 29 void bfad_im_probe_undo(struct bfad_s *bfad); 30 void bfad_im_probe_post(struct bfad_im_s *im); 31 bfa_status_t bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port); 32 void bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port); 33 void bfad_im_port_online(struct bfad_s *bfad, struct bfad_port_s *port); 34 void bfad_im_port_offline(struct bfad_s *bfad, struct bfad_port_s *port); 35 void bfad_im_port_clean(struct bfad_im_port_s *im_port); 36 int bfad_im_scsi_host_alloc(struct bfad_s *bfad, 37 struct bfad_im_port_s *im_port, struct device *dev); 38 void bfad_im_scsi_host_free(struct bfad_s *bfad, 39 struct bfad_im_port_s *im_port); 40 41 #define MAX_FCP_TARGET 1024 42 #define MAX_FCP_LUN 16384 43 #define BFAD_TARGET_RESET_TMO 60 44 #define BFAD_LUN_RESET_TMO 60 45 #define ScsiResult(host_code, scsi_code) (((host_code) << 16) | scsi_code) 46 #define BFA_QUEUE_FULL_RAMP_UP_TIME 120 47 #define BFAD_KOBJ_NAME_LEN 20 48 49 /* 50 * itnim flags 51 */ 52 #define ITNIM_MAPPED 0x00000001 53 54 #define SCSI_TASK_MGMT 0x00000001 55 #define IO_DONE_BIT 0 56 57 struct bfad_itnim_data_s { 58 struct bfad_itnim_s *itnim; 59 }; 60 61 struct bfad_im_port_s { 62 struct bfad_s *bfad; 63 struct bfad_port_s *port; 64 struct work_struct port_delete_work; 65 int idr_id; 66 u16 cur_scsi_id; 67 u16 flags; 68 struct list_head binding_list; 69 struct Scsi_Host *shost; 70 struct list_head itnim_mapped_list; 71 struct fc_vport *fc_vport; 72 }; 73 74 enum bfad_itnim_state { 75 ITNIM_STATE_NONE, 76 ITNIM_STATE_ONLINE, 77 ITNIM_STATE_OFFLINE_PENDING, 78 ITNIM_STATE_OFFLINE, 79 ITNIM_STATE_TIMEOUT, 80 ITNIM_STATE_FREE, 81 }; 82 83 /* 84 * Per itnim data structure 85 */ 86 struct bfad_itnim_s { 87 struct list_head list_entry; 88 struct bfa_fcs_itnim_s fcs_itnim; 89 struct work_struct itnim_work; 90 u32 flags; 91 enum bfad_itnim_state state; 92 struct bfad_im_s *im; 93 struct bfad_im_port_s *im_port; 94 struct bfad_rport_s *drv_rport; 95 struct fc_rport *fc_rport; 96 struct bfa_itnim_s *bfa_itnim; 97 u16 scsi_tgt_id; 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[BFAD_KOBJ_NAME_LEN]; 122 }; 123 124 struct Scsi_Host *bfad_os_scsi_host_alloc(struct bfad_im_port_s *im_port, 125 struct bfad_s *); 126 bfa_status_t bfad_os_thread_workq(struct bfad_s *bfad); 127 void bfad_os_destroy_workq(struct bfad_im_s *im); 128 void bfad_os_itnim_process(struct bfad_itnim_s *itnim_drv); 129 void bfad_os_fc_host_init(struct bfad_im_port_s *im_port); 130 void bfad_os_scsi_host_free(struct bfad_s *bfad, 131 struct bfad_im_port_s *im_port); 132 void bfad_os_ramp_up_qdepth(struct bfad_itnim_s *itnim, 133 struct scsi_device *sdev); 134 void bfad_os_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev); 135 struct bfad_itnim_s *bfad_os_get_itnim(struct bfad_im_port_s *im_port, int id); 136 int bfad_os_scsi_add_host(struct Scsi_Host *shost, 137 struct bfad_im_port_s *im_port, struct bfad_s *bfad); 138 139 void bfad_im_itnim_unmap(struct bfad_im_port_s *im_port, 140 struct bfad_itnim_s *itnim); 141 142 extern struct scsi_host_template bfad_im_scsi_host_template; 143 extern struct scsi_host_template bfad_im_vport_template; 144 extern struct fc_function_template bfad_im_fc_function_template; 145 extern struct fc_function_template bfad_im_vport_fc_function_template; 146 extern struct scsi_transport_template *bfad_im_scsi_transport_template; 147 extern struct scsi_transport_template *bfad_im_scsi_vport_transport_template; 148 149 #endif 150