1 /*-
2 * Copyright (c) 2011, 2012 LSI Corp.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * LSI MPT-Fusion Host Adapter FreeBSD
27 *
28 * $FreeBSD: stable/9/sys/dev/mps/mps_sas.h 254938 2013-08-26 21:34:43Z ken $
29 */
30
31 struct mps_fw_event_work;
32
33 struct mpssas_lun {
34 SLIST_ENTRY(mpssas_lun) lun_link;
35 lun_id_t lun_id;
36 uint8_t eedp_formatted;
37 uint32_t eedp_block_size;
38 };
39
40 struct mpssas_target {
41 uint16_t handle;
42 uint8_t linkrate;
43 uint64_t devname;
44 uint32_t devinfo;
45 uint16_t encl_handle;
46 uint16_t encl_slot;
47 uint8_t flags;
48 #define MPSSAS_TARGET_INABORT (1 << 0)
49 #define MPSSAS_TARGET_INRESET (1 << 1)
50 #define MPSSAS_TARGET_INDIAGRESET (1 << 2)
51 #define MPSSAS_TARGET_INREMOVAL (1 << 3)
52 #define MPS_TARGET_FLAGS_RAID_COMPONENT (1 << 4)
53 #define MPS_TARGET_FLAGS_VOLUME (1 << 5)
54 #define MPSSAS_TARGET_INRECOVERY (MPSSAS_TARGET_INABORT | \
55 MPSSAS_TARGET_INRESET | MPSSAS_TARGET_INCHIPRESET)
56
57 #define MPSSAS_TARGET_ADD (1 << 29)
58 #define MPSSAS_TARGET_REMOVE (1 << 30)
59 uint16_t tid;
60 SLIST_HEAD(, mpssas_lun) luns;
61 TAILQ_HEAD(, mps_command) commands;
62 struct mps_command *tm;
63 TAILQ_HEAD(, mps_command) timedout_commands;
64 uint16_t exp_dev_handle;
65 uint16_t phy_num;
66 uint64_t sasaddr;
67 uint16_t parent_handle;
68 uint64_t parent_sasaddr;
69 uint32_t parent_devinfo;
70 struct sysctl_ctx_list sysctl_ctx;
71 struct sysctl_oid *sysctl_tree;
72 TAILQ_ENTRY(mpssas_target) sysctl_link;
73 uint64_t issued;
74 uint64_t completed;
75 unsigned int outstanding;
76 unsigned int timeouts;
77 unsigned int aborts;
78 unsigned int logical_unit_resets;
79 unsigned int target_resets;
80 };
81
82 struct mpssas_softc {
83 struct mps_softc *sc;
84 u_int flags;
85 #define MPSSAS_IN_DISCOVERY (1 << 0)
86 #define MPSSAS_IN_STARTUP (1 << 1)
87 #define MPSSAS_DISCOVERY_TIMEOUT_PENDING (1 << 2)
88 #define MPSSAS_QUEUE_FROZEN (1 << 3)
89 #define MPSSAS_SHUTDOWN (1 << 4)
90 struct mpssas_target *targets;
91 struct cam_devq *devq;
92 struct cam_sim *sim;
93 struct cam_path *path;
94 struct intr_config_hook sas_ich;
95 struct callout discovery_callout;
96 u_int discovery_timeouts;
97 struct mps_event_handle *mpssas_eh;
98
99 u_int startup_refcount;
100 u_int tm_count;
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
mpssas_set_lun(uint8_t * lun,u_int ccblun)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 #define MPS_SET_SINGLE_LUN(req, lun) \
148 do { \
149 bzero((req)->LUN, 8); \
150 (req)->LUN[1] = lun; \
151 } while(0)
152
153 void mpssas_rescan_target(struct mps_softc *sc, struct mpssas_target *targ);
154 void mpssas_discovery_end(struct mpssas_softc *sassc);
155 void mpssas_startup_increment(struct mpssas_softc *sassc);
156 void mpssas_startup_decrement(struct mpssas_softc *sassc);
157
158 struct mps_command * mpssas_alloc_tm(struct mps_softc *sc);
159 void mpssas_free_tm(struct mps_softc *sc, struct mps_command *tm);
160 void mpssas_firmware_event_work(void *arg, int pending);
161