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
29 #ifndef _CAM_CAM_XPT_INTERNAL_H
30 #define _CAM_CAM_XPT_INTERNAL_H 1
32 #include <sys/taskqueue.h>
34 /* Forward Declarations */
39 typedef struct cam_ed * (*xpt_alloc_device_func)(struct cam_eb *bus,
40 struct cam_et *target,
42 typedef void (*xpt_release_device_func)(struct cam_ed *device);
43 typedef void (*xpt_action_func)(union ccb *start_ccb);
44 typedef void (*xpt_dev_async_func)(uint32_t async_code,
46 struct cam_et *target,
47 struct cam_ed *device,
49 typedef void (*xpt_announce_periph_func)(struct cam_periph *periph);
50 typedef void (*xpt_announce_periph_sbuf_func)(struct cam_periph *periph, struct sbuf *sbuf);
52 struct xpt_xport_ops {
53 xpt_alloc_device_func alloc_device;
54 xpt_release_device_func reldev;
55 xpt_action_func action;
56 xpt_dev_async_func async;
57 xpt_announce_periph_sbuf_func announce_sbuf;
63 struct xpt_xport_ops *ops;
66 SET_DECLARE(cam_xpt_xport_set, struct xpt_xport);
67 #define CAM_XPT_XPORT(data) \
68 DATA_SET(cam_xpt_xport_set, data)
70 typedef void (*xpt_proto_announce_func)(struct cam_ed *);
71 typedef void (*xpt_proto_announce_sbuf_func)(struct cam_ed *, struct sbuf *);
72 typedef void (*xpt_proto_debug_out_func)(union ccb *);
74 struct xpt_proto_ops {
75 xpt_proto_announce_sbuf_func announce_sbuf;
76 xpt_proto_announce_sbuf_func denounce_sbuf;
77 xpt_proto_debug_out_func debug_out;
83 struct xpt_proto_ops *ops;
86 SET_DECLARE(cam_xpt_proto_set, struct xpt_proto);
87 #define CAM_XPT_PROTO(data) \
88 DATA_SET(cam_xpt_proto_set, data)
91 * The CAM EDT (Existing Device Table) contains the device information for
92 * all devices for all buses in the system. The table contains a
93 * cam_ed structure for each device on the bus.
97 TAILQ_ENTRY(cam_ed) links;
98 struct cam_et *target;
101 struct cam_ccbq ccbq; /* Queue of pending ccbs */
102 struct async_list asyncs; /* Async callback info for this B/T/L */
103 struct periph_list periphs; /* All attached devices */
104 u_int generation; /* Generation number */
105 void *quirk; /* Oddities about this device */
109 u_int protocol_version;
111 u_int transport_version;
112 struct scsi_inquiry_data inq_data;
113 uint8_t *supported_vpds;
114 uint8_t supported_vpds_len;
115 uint32_t device_id_len;
117 uint32_t ext_inq_len;
119 uint8_t physpath_len;
120 uint8_t *physpath; /* physical path string form */
123 struct ata_params ident_data;
124 struct mmc_params mmc_ident_data;
125 uint8_t inq_flags; /*
126 * Current settings for inquiry flags.
127 * This allows us to override settings
128 * like disconnection and tagged
129 * queuing for a device.
131 uint8_t queue_flags; /* Queue flags from the control page */
132 uint8_t serial_num_len;
135 #define CAM_DEV_UNCONFIGURED 0x01
136 #define CAM_DEV_REL_TIMEOUT_PENDING 0x02
137 #define CAM_DEV_REL_ON_COMPLETE 0x04
138 #define CAM_DEV_REL_ON_QUEUE_EMPTY 0x08
139 #define CAM_DEV_TAG_AFTER_COUNT 0x20
140 #define CAM_DEV_INQUIRY_DATA_VALID 0x40
141 #define CAM_DEV_IN_DV 0x80
142 #define CAM_DEV_DV_HIT_BOTTOM 0x100
143 #define CAM_DEV_IDENTIFY_DATA_VALID 0x200
144 uint32_t tag_delay_count;
145 #define CAM_TAG_DELAY_COUNT 5
146 uint32_t tag_saved_openings;
148 struct callout callout;
149 STAILQ_ENTRY(cam_ed) highpowerq_entry;
150 struct mtx device_mtx;
151 struct task device_destroy_task;
152 struct nvme_controller_data *nvme_cdata;
153 struct nvme_namespace_data *nvme_data;
157 * Each target is represented by an ET (Existing Target). These
158 * entries are created when a target is successfully probed with an
159 * identify, and removed when a device fails to respond after a number
160 * of retries, or a bus rescan finds the device missing.
163 TAILQ_HEAD(, cam_ed) ed_entries;
164 TAILQ_ENTRY(cam_et) links;
166 target_id_t target_id;
169 struct timeval last_reset;
171 struct scsi_report_luns_data *luns;
172 struct mtx luns_mtx; /* Protection for luns field. */
176 * Each bus is represented by an EB (Existing Bus). These entries
177 * are created by calls to xpt_bus_register and deleted by calls to
178 * xpt_bus_deregister.
181 TAILQ_HEAD(, cam_et) et_entries;
182 TAILQ_ENTRY(cam_eb) links;
185 struct timeval last_reset;
187 #define CAM_EB_RUNQ_SCHEDULED 0x01
191 struct xpt_xport *xport;
192 struct mtx eb_mtx; /* Bus topology mutex. */
196 struct cam_periph *periph;
198 struct cam_et *target;
199 struct cam_ed *device;
202 struct cam_ed * xpt_alloc_device(struct cam_eb *bus,
203 struct cam_et *target,
205 void xpt_acquire_device(struct cam_ed *device);
206 void xpt_release_device(struct cam_ed *device);
207 uint32_t xpt_dev_ccbq_resize(struct cam_path *path, int newopenings);
208 void xpt_start_tags(struct cam_path *path);
209 void xpt_stop_tags(struct cam_path *path);
211 MALLOC_DECLARE(M_CAMXPT);