xref: /freebsd/sys/dev/mpr/mpr_sas.h (revision 39ee7a7a6bdd1557b1c3532abf60d139798ac88b)
1 /*-
2  * Copyright (c) 2011-2015 LSI Corp.
3  * Copyright (c) 2013-2015 Avago Technologies
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * Avago Technologies (LSI) MPT-Fusion Host Adapter FreeBSD
28  *
29  * $FreeBSD$
30  */
31 
32 struct mpr_fw_event_work;
33 
34 struct mprsas_lun {
35 	SLIST_ENTRY(mprsas_lun) lun_link;
36 	lun_id_t	lun_id;
37 	uint8_t		eedp_formatted;
38 	uint32_t	eedp_block_size;
39 };
40 
41 struct mprsas_target {
42 	uint16_t	handle;
43 	uint8_t		linkrate;
44 	uint8_t		encl_level_valid;
45 	uint8_t		encl_level;
46 	char		connector_name[4];
47 	uint64_t	devname;
48 	uint32_t	devinfo;
49 	uint16_t	encl_handle;
50 	uint16_t	encl_slot;
51 	uint8_t		flags;
52 #define MPRSAS_TARGET_INABORT	(1 << 0)
53 #define MPRSAS_TARGET_INRESET	(1 << 1)
54 #define MPRSAS_TARGET_INDIAGRESET (1 << 2)
55 #define MPRSAS_TARGET_INREMOVAL	(1 << 3)
56 #define MPR_TARGET_FLAGS_RAID_COMPONENT (1 << 4)
57 #define MPR_TARGET_FLAGS_VOLUME         (1 << 5)
58 #define MPR_TARGET_IS_SATA_SSD	(1 << 6)
59 #define MPRSAS_TARGET_INRECOVERY (MPRSAS_TARGET_INABORT | \
60     MPRSAS_TARGET_INRESET | MPRSAS_TARGET_INCHIPRESET)
61 
62 	uint16_t	tid;
63 	SLIST_HEAD(, mprsas_lun) luns;
64 	TAILQ_HEAD(, mpr_command) commands;
65 	struct mpr_command *tm;
66 	TAILQ_HEAD(, mpr_command) timedout_commands;
67 	uint16_t        exp_dev_handle;
68 	uint16_t        phy_num;
69 	uint64_t	sasaddr;
70 	uint16_t	parent_handle;
71 	uint64_t	parent_sasaddr;
72 	uint32_t	parent_devinfo;
73 	struct sysctl_ctx_list sysctl_ctx;
74 	struct sysctl_oid *sysctl_tree;
75 	TAILQ_ENTRY(mprsas_target) sysctl_link;
76 	uint64_t        issued;
77 	uint64_t        completed;
78 	unsigned int    outstanding;
79 	unsigned int    timeouts;
80 	unsigned int    aborts;
81 	unsigned int    logical_unit_resets;
82 	unsigned int    target_resets;
83 	uint8_t		scsi_req_desc_type;
84 	uint8_t		stop_at_shutdown;
85 	uint8_t		supports_SSU;
86 };
87 
88 struct mprsas_softc {
89 	struct mpr_softc	*sc;
90 	u_int			flags;
91 #define MPRSAS_IN_DISCOVERY	(1 << 0)
92 #define MPRSAS_IN_STARTUP	(1 << 1)
93 #define MPRSAS_DISCOVERY_TIMEOUT_PENDING	(1 << 2)
94 #define MPRSAS_QUEUE_FROZEN	(1 << 3)
95 #define	MPRSAS_SHUTDOWN		(1 << 4)
96 	u_int			maxtargets;
97 	struct mprsas_target	*targets;
98 	struct cam_devq		*devq;
99 	struct cam_sim		*sim;
100 	struct cam_path		*path;
101 	struct intr_config_hook	sas_ich;
102 	struct callout		discovery_callout;
103 	struct mpr_event_handle	*mprsas_eh;
104 
105 	u_int                   startup_refcount;
106 	struct proc             *sysctl_proc;
107 
108 	struct taskqueue	*ev_tq;
109 	struct task		ev_task;
110 	TAILQ_HEAD(, mpr_fw_event_work)	ev_queue;
111 };
112 
113 MALLOC_DECLARE(M_MPRSAS);
114 
115 /*
116  * Abstracted so that the driver can be backwards and forwards compatible
117  * with future versions of CAM that will provide this functionality.
118  */
119 #define MPR_SET_LUN(lun, ccblun)	\
120 	mprsas_set_lun(lun, ccblun)
121 
122 static __inline int
123 mprsas_set_lun(uint8_t *lun, u_int ccblun)
124 {
125 	uint64_t *newlun;
126 
127 	newlun = (uint64_t *)lun;
128 	*newlun = 0;
129 	if (ccblun <= 0xff) {
130 		/* Peripheral device address method, LUN is 0 to 255 */
131 		lun[1] = ccblun;
132 	} else if (ccblun <= 0x3fff) {
133 		/* Flat space address method, LUN is <= 16383 */
134 		scsi_ulto2b(ccblun, lun);
135 		lun[0] |= 0x40;
136 	} else if (ccblun <= 0xffffff) {
137 		/* Extended flat space address method, LUN is <= 16777215 */
138 		scsi_ulto3b(ccblun, &lun[1]);
139 		/* Extended Flat space address method */
140 		lun[0] = 0xc0;
141 		/* Length = 1, i.e. LUN is 3 bytes long */
142 		lun[0] |= 0x10;
143 		/* Extended Address Method */
144 		lun[0] |= 0x02;
145 	} else {
146 		return (EINVAL);
147 	}
148 
149 	return (0);
150 }
151 
152 static __inline void
153 mprsas_set_ccbstatus(union ccb *ccb, int status)
154 {
155 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
156 	ccb->ccb_h.status |= status;
157 }
158 
159 static __inline int
160 mprsas_get_ccbstatus(union ccb *ccb)
161 {
162 	return (ccb->ccb_h.status & CAM_STATUS_MASK);
163 }
164 
165 #define MPR_SET_SINGLE_LUN(req, lun)	\
166 do {					\
167 	bzero((req)->LUN, 8);		\
168 	(req)->LUN[1] = lun;		\
169 } while(0)
170 
171 void mprsas_rescan_target(struct mpr_softc *sc, struct mprsas_target *targ);
172 void mprsas_discovery_end(struct mprsas_softc *sassc);
173 void mprsas_prepare_for_tm(struct mpr_softc *sc, struct mpr_command *tm,
174     struct mprsas_target *target, lun_id_t lun_id);
175 void mprsas_startup_increment(struct mprsas_softc *sassc);
176 void mprsas_startup_decrement(struct mprsas_softc *sassc);
177 
178 void mprsas_firmware_event_work(void *arg, int pending);
179 int mprsas_check_id(struct mprsas_softc *sassc, int id);
180