xref: /freebsd/sys/dev/mps/mps_sas.h (revision a98ff317388a00b992f1bf8404dee596f9383f5e)
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  * $FreeBSD$
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
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