2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright 2009 Scott Long
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification, immediately at the beginning of the file.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #ifndef _CAM_CAM_XPT_INTERNAL_H
32 #define _CAM_CAM_XPT_INTERNAL_H 1
34 #include <sys/taskqueue.h>
36 /* Forward Declarations */
41 typedef struct cam_ed * (*xpt_alloc_device_func)(struct cam_eb *bus,
42 struct cam_et *target,
44 typedef void (*xpt_release_device_func)(struct cam_ed *device);
45 typedef void (*xpt_action_func)(union ccb *start_ccb);
46 typedef void (*xpt_dev_async_func)(uint32_t async_code,
48 struct cam_et *target,
49 struct cam_ed *device,
51 typedef void (*xpt_announce_periph_func)(struct cam_periph *periph);
52 typedef void (*xpt_announce_periph_sbuf_func)(struct cam_periph *periph, struct sbuf *sbuf);
54 struct xpt_xport_ops {
55 xpt_alloc_device_func alloc_device;
56 xpt_release_device_func reldev;
57 xpt_action_func action;
58 xpt_dev_async_func async;
59 xpt_announce_periph_sbuf_func announce_sbuf;
65 struct xpt_xport_ops *ops;
68 SET_DECLARE(cam_xpt_xport_set, struct xpt_xport);
69 #define CAM_XPT_XPORT(data) \
70 DATA_SET(cam_xpt_xport_set, data)
72 typedef void (*xpt_proto_announce_func)(struct cam_ed *);
73 typedef void (*xpt_proto_announce_sbuf_func)(struct cam_ed *, struct sbuf *);
74 typedef void (*xpt_proto_debug_out_func)(union ccb *);
76 struct xpt_proto_ops {
77 xpt_proto_announce_sbuf_func announce_sbuf;
78 xpt_proto_announce_sbuf_func denounce_sbuf;
79 xpt_proto_debug_out_func debug_out;
85 struct xpt_proto_ops *ops;
88 SET_DECLARE(cam_xpt_proto_set, struct xpt_proto);
89 #define CAM_XPT_PROTO(data) \
90 DATA_SET(cam_xpt_proto_set, data)
93 * The CAM EDT (Existing Device Table) contains the device information for
94 * all devices for all buses in the system. The table contains a
95 * cam_ed structure for each device on the bus.
99 TAILQ_ENTRY(cam_ed) links;
100 struct cam_et *target;
103 struct cam_ccbq ccbq; /* Queue of pending ccbs */
104 struct async_list asyncs; /* Async callback info for this B/T/L */
105 struct periph_list periphs; /* All attached devices */
106 u_int generation; /* Generation number */
107 void *quirk; /* Oddities about this device */
111 u_int protocol_version;
113 u_int transport_version;
114 struct scsi_inquiry_data inq_data;
115 uint8_t *supported_vpds;
116 uint8_t supported_vpds_len;
117 uint32_t device_id_len;
119 uint32_t ext_inq_len;
121 uint8_t physpath_len;
122 uint8_t *physpath; /* physical path string form */
125 struct ata_params ident_data;
126 struct mmc_params mmc_ident_data;
127 uint8_t inq_flags; /*
128 * Current settings for inquiry flags.
129 * This allows us to override settings
130 * like disconnection and tagged
131 * queuing for a device.
133 uint8_t queue_flags; /* Queue flags from the control page */
134 uint8_t serial_num_len;
137 #define CAM_DEV_UNCONFIGURED 0x01
138 #define CAM_DEV_REL_TIMEOUT_PENDING 0x02
139 #define CAM_DEV_REL_ON_COMPLETE 0x04
140 #define CAM_DEV_REL_ON_QUEUE_EMPTY 0x08
141 #define CAM_DEV_TAG_AFTER_COUNT 0x20
142 #define CAM_DEV_INQUIRY_DATA_VALID 0x40
143 #define CAM_DEV_IN_DV 0x80
144 #define CAM_DEV_DV_HIT_BOTTOM 0x100
145 #define CAM_DEV_IDENTIFY_DATA_VALID 0x200
146 uint32_t tag_delay_count;
147 #define CAM_TAG_DELAY_COUNT 5
148 uint32_t tag_saved_openings;
150 struct callout callout;
151 STAILQ_ENTRY(cam_ed) highpowerq_entry;
152 struct mtx device_mtx;
153 struct task device_destroy_task;
154 struct nvme_controller_data *nvme_cdata;
155 struct nvme_namespace_data *nvme_data;
159 * Each target is represented by an ET (Existing Target). These
160 * entries are created when a target is successfully probed with an
161 * identify, and removed when a device fails to respond after a number
162 * of retries, or a bus rescan finds the device missing.
165 TAILQ_HEAD(, cam_ed) ed_entries;
166 TAILQ_ENTRY(cam_et) links;
168 target_id_t target_id;
171 struct timeval last_reset;
173 struct scsi_report_luns_data *luns;
174 struct mtx luns_mtx; /* Protection for luns field. */
178 * Each bus is represented by an EB (Existing Bus). These entries
179 * are created by calls to xpt_bus_register and deleted by calls to
180 * xpt_bus_deregister.
183 TAILQ_HEAD(, cam_et) et_entries;
184 TAILQ_ENTRY(cam_eb) links;
187 struct timeval last_reset;
189 #define CAM_EB_RUNQ_SCHEDULED 0x01
193 struct xpt_xport *xport;
194 struct mtx eb_mtx; /* Bus topology mutex. */
198 struct cam_periph *periph;
200 struct cam_et *target;
201 struct cam_ed *device;
204 struct cam_ed * xpt_alloc_device(struct cam_eb *bus,
205 struct cam_et *target,
207 void xpt_acquire_device(struct cam_ed *device);
208 void xpt_release_device(struct cam_ed *device);
209 uint32_t xpt_dev_ccbq_resize(struct cam_path *path, int newopenings);
210 void xpt_start_tags(struct cam_path *path);
211 void xpt_stop_tags(struct cam_path *path);
213 MALLOC_DECLARE(M_CAMXPT);