FreeBSD/Linux Kernel Cross Reference
sys/dev/mps/mps_sas.h
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2011-2015 LSI Corp.
5 * Copyright (c) 2013-2015 Avago Technologies
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * Avago Technologies (LSI) MPT-Fusion Host Adapter FreeBSD
30 *
31 * $FreeBSD: releng/12.0/sys/dev/mps/mps_sas.h 326255 2017-11-27 14:52:40Z pfg $
32 */
33
34 struct mps_fw_event_work;
35
36 struct mpssas_lun {
37 SLIST_ENTRY(mpssas_lun) lun_link;
38 lun_id_t lun_id;
39 uint8_t eedp_formatted;
40 uint32_t eedp_block_size;
41 };
42
43 struct mpssas_target {
44 uint16_t handle;
45 uint8_t linkrate;
46 uint64_t devname;
47 uint32_t devinfo;
48 uint16_t encl_handle;
49 uint16_t encl_slot;
50 uint8_t flags;
51 #define MPSSAS_TARGET_INABORT (1 << 0)
52 #define MPSSAS_TARGET_INRESET (1 << 1)
53 #define MPSSAS_TARGET_INDIAGRESET (1 << 2)
54 #define MPSSAS_TARGET_INREMOVAL (1 << 3)
55 #define MPS_TARGET_FLAGS_RAID_COMPONENT (1 << 4)
56 #define MPS_TARGET_FLAGS_VOLUME (1 << 5)
57 #define MPS_TARGET_IS_SATA_SSD (1 << 6)
58 #define MPSSAS_TARGET_INRECOVERY (MPSSAS_TARGET_INABORT | \
59 MPSSAS_TARGET_INRESET | MPSSAS_TARGET_INCHIPRESET)
60
61 uint16_t tid;
62 SLIST_HEAD(, mpssas_lun) luns;
63 TAILQ_HEAD(, mps_command) commands;
64 struct mps_command *tm;
65 TAILQ_HEAD(, mps_command) timedout_commands;
66 uint16_t exp_dev_handle;
67 uint16_t phy_num;
68 uint64_t sasaddr;
69 uint16_t parent_handle;
70 uint64_t parent_sasaddr;
71 uint32_t parent_devinfo;
72 uint64_t issued;
73 uint64_t completed;
74 unsigned int outstanding;
75 unsigned int timeouts;
76 unsigned int aborts;
77 unsigned int logical_unit_resets;
78 unsigned int target_resets;
79 uint8_t stop_at_shutdown;
80 uint8_t supports_SSU;
81 };
82
83 struct mpssas_softc {
84 struct mps_softc *sc;
85 u_int flags;
86 #define MPSSAS_IN_DISCOVERY (1 << 0)
87 #define MPSSAS_IN_STARTUP (1 << 1)
88 #define MPSSAS_DISCOVERY_TIMEOUT_PENDING (1 << 2)
89 #define MPSSAS_QUEUE_FROZEN (1 << 3)
90 #define MPSSAS_SHUTDOWN (1 << 4)
91 u_int maxtargets;
92 struct mpssas_target *targets;
93 struct cam_devq *devq;
94 struct cam_sim *sim;
95 struct cam_path *path;
96 struct intr_config_hook sas_ich;
97 struct callout discovery_callout;
98 struct mps_event_handle *mpssas_eh;
99
100 u_int startup_refcount;
101 struct proc *sysctl_proc;
102
103 struct taskqueue *ev_tq;
104 struct task ev_task;
105 TAILQ_HEAD(, mps_fw_event_work) ev_queue;
106 };
107
108 MALLOC_DECLARE(M_MPSSAS);
109
110 /*
111 * Abstracted so that the driver can be backwards and forwards compatible
112 * with future versions of CAM that will provide this functionality.
113 */
114 #define MPS_SET_LUN(lun, ccblun) \
115 mpssas_set_lun(lun, ccblun)
116
117 static __inline int
118 mpssas_set_lun(uint8_t *lun, u_int ccblun)
119 {
120 uint64_t *newlun;
121
122 newlun = (uint64_t *)lun;
123 *newlun = 0;
124 if (ccblun <= 0xff) {
125 /* Peripheral device address method, LUN is 0 to 255 */
126 lun[1] = ccblun;
127 } else if (ccblun <= 0x3fff) {
128 /* Flat space address method, LUN is <= 16383 */
129 scsi_ulto2b(ccblun, lun);
130 lun[0] |= 0x40;
131 } else if (ccblun <= 0xffffff) {
132 /* Extended flat space address method, LUN is <= 16777215 */
133 scsi_ulto3b(ccblun, &lun[1]);
134 /* Extended Flat space address method */
135 lun[0] = 0xc0;
136 /* Length = 1, i.e. LUN is 3 bytes long */
137 lun[0] |= 0x10;
138 /* Extended Address Method */
139 lun[0] |= 0x02;
140 } else {
141 return (EINVAL);
142 }
143
144 return (0);
145 }
146
147 static __inline void
148 mpssas_set_ccbstatus(union ccb *ccb, int status)
149 {
150 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
151 ccb->ccb_h.status |= status;
152 }
153
154 static __inline int
155 mpssas_get_ccbstatus(union ccb *ccb)
156 {
157 return (ccb->ccb_h.status & CAM_STATUS_MASK);
158 }
159
160 #define MPS_SET_SINGLE_LUN(req, lun) \
161 do { \
162 bzero((req)->LUN, 8); \
163 (req)->LUN[1] = lun; \
164 } while(0)
165
166 void mpssas_rescan_target(struct mps_softc *sc, struct mpssas_target *targ);
167 void mpssas_discovery_end(struct mpssas_softc *sassc);
168 void mpssas_prepare_for_tm(struct mps_softc *sc, struct mps_command *tm,
169 struct mpssas_target *target, lun_id_t lun_id);
170 void mpssas_startup_increment(struct mpssas_softc *sassc);
171 void mpssas_startup_decrement(struct mpssas_softc *sassc);
172
173 void mpssas_firmware_event_work(void *arg, int pending);
174 int mpssas_check_id(struct mpssas_softc *sassc, int id);
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