xref: /freebsd/sys/dev/mps/mps_sas.h (revision ee7b0571c2c18bdec848ed2044223cc88db29bd8)
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 	u_int			maxtargets;
91 	struct mpssas_target	*targets;
92 	struct cam_devq		*devq;
93 	struct cam_sim		*sim;
94 	struct cam_path		*path;
95 	struct intr_config_hook	sas_ich;
96 	struct callout		discovery_callout;
97 	u_int			discovery_timeouts;
98 	struct mps_event_handle	*mpssas_eh;
99 
100 	u_int                   startup_refcount;
101 	u_int                   tm_count;
102 	struct proc             *sysctl_proc;
103 
104 	struct taskqueue	*ev_tq;
105 	struct task		ev_task;
106 	TAILQ_HEAD(, mps_fw_event_work)	ev_queue;
107 };
108 
109 MALLOC_DECLARE(M_MPSSAS);
110 
111 /*
112  * Abstracted so that the driver can be backwards and forwards compatible
113  * with future versions of CAM that will provide this functionality.
114  */
115 #define MPS_SET_LUN(lun, ccblun)	\
116 	mpssas_set_lun(lun, ccblun)
117 
118 static __inline int
119 mpssas_set_lun(uint8_t *lun, u_int ccblun)
120 {
121 	uint64_t *newlun;
122 
123 	newlun = (uint64_t *)lun;
124 	*newlun = 0;
125 	if (ccblun <= 0xff) {
126 		/* Peripheral device address method, LUN is 0 to 255 */
127 		lun[1] = ccblun;
128 	} else if (ccblun <= 0x3fff) {
129 		/* Flat space address method, LUN is <= 16383 */
130 		scsi_ulto2b(ccblun, lun);
131 		lun[0] |= 0x40;
132 	} else if (ccblun <= 0xffffff) {
133 		/* Extended flat space address method, LUN is <= 16777215 */
134 		scsi_ulto3b(ccblun, &lun[1]);
135 		/* Extended Flat space address method */
136 		lun[0] = 0xc0;
137 		/* Length = 1, i.e. LUN is 3 bytes long */
138 		lun[0] |= 0x10;
139 		/* Extended Address Method */
140 		lun[0] |= 0x02;
141 	} else {
142 		return (EINVAL);
143 	}
144 
145 	return (0);
146 }
147 
148 static __inline void
149 mpssas_set_ccbstatus(union ccb *ccb, int status)
150 {
151 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
152 	ccb->ccb_h.status |= status;
153 }
154 
155 static __inline int
156 mpssas_get_ccbstatus(union ccb *ccb)
157 {
158 	return (ccb->ccb_h.status & CAM_STATUS_MASK);
159 }
160 
161 #define MPS_SET_SINGLE_LUN(req, lun)	\
162 do {					\
163 	bzero((req)->LUN, 8);		\
164 	(req)->LUN[1] = lun;		\
165 } while(0)
166 
167 void mpssas_rescan_target(struct mps_softc *sc, struct mpssas_target *targ);
168 void mpssas_discovery_end(struct mpssas_softc *sassc);
169 void mpssas_startup_increment(struct mpssas_softc *sassc);
170 void mpssas_startup_decrement(struct mpssas_softc *sassc);
171 
172 void mpssas_firmware_event_work(void *arg, int pending);
173 int mpssas_check_id(struct mpssas_softc *sassc, int id);
174