1 /*
2  *  linux/drivers/message/fusion/mptsas.h
3  *      High performance SCSI + LAN / Fibre Channel device drivers.
4  *      For use with PCI chip/adapter(s):
5  *          LSIFC9xx/LSI409xx Fibre Channel
6  *      running LSI MPT (Message Passing Technology) firmware.
7  *
8  *  Copyright (c) 1999-2008 LSI Corporation
9  *  (mailto:DL-MPTFusionLinux@lsi.com)
10  *
11  */
12 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
13 /*
14     This program is free software; you can redistribute it and/or modify
15     it under the terms of the GNU General Public License as published by
16     the Free Software Foundation; version 2 of the License.
17 
18     This program is distributed in the hope that it will be useful,
19     but WITHOUT ANY WARRANTY; without even the implied warranty of
20     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21     GNU General Public License for more details.
22 
23     NO WARRANTY
24     THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
25     CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
26     LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
27     MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
28     solely responsible for determining the appropriateness of using and
29     distributing the Program and assumes all risks associated with its
30     exercise of rights under this Agreement, including but not limited to
31     the risks and costs of program errors, damage to or loss of data,
32     programs or equipment, and unavailability or interruption of operations.
33 
34     DISCLAIMER OF LIABILITY
35     NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
36     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37     DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
38     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
39     TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
40     USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
41     HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
42 
43     You should have received a copy of the GNU General Public License
44     along with this program; if not, write to the Free Software
45     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
46 */
47 
48 #ifndef MPTSAS_H_INCLUDED
49 #define MPTSAS_H_INCLUDED
50 /*{-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
51 
52 struct mptsas_target_reset_event {
53 	struct list_head 	list;
54 	EVENT_DATA_SAS_DEVICE_STATUS_CHANGE sas_event_data;
55 	u8	target_reset_issued;
56 	unsigned long	 time_count;
57 };
58 
59 enum mptsas_hotplug_action {
60 	MPTSAS_ADD_DEVICE,
61 	MPTSAS_DEL_DEVICE,
62 	MPTSAS_ADD_RAID,
63 	MPTSAS_DEL_RAID,
64 	MPTSAS_ADD_PHYSDISK,
65 	MPTSAS_ADD_PHYSDISK_REPROBE,
66 	MPTSAS_DEL_PHYSDISK,
67 	MPTSAS_DEL_PHYSDISK_REPROBE,
68 	MPTSAS_ADD_INACTIVE_VOLUME,
69 	MPTSAS_IGNORE_EVENT,
70 };
71 
72 struct mptsas_mapping{
73 	u8			id;
74 	u8			channel;
75 };
76 
77 struct mptsas_device_info {
78 	struct list_head 	list;
79 	struct mptsas_mapping	os;	/* operating system mapping*/
80 	struct mptsas_mapping	fw;	/* firmware mapping */
81 	u64			sas_address;
82 	u32			device_info; /* specific bits for devices */
83 	u16			slot;		/* enclosure slot id */
84 	u64			enclosure_logical_id; /*enclosure address */
85 	u8			is_logical_volume; /* is this logical volume */
86 	/* this belongs to volume */
87 	u8			is_hidden_raid_component;
88 	/* this valid when is_hidden_raid_component set */
89 	u8			volume_id;
90 	/* cached data for a removed device */
91 	u8			is_cached;
92 };
93 
94 struct mptsas_hotplug_event {
95 	MPT_ADAPTER		*ioc;
96 	enum mptsas_hotplug_action event_type;
97 	u64			sas_address;
98 	u8			channel;
99 	u8			id;
100 	u32			device_info;
101 	u16			handle;
102 	u8			phy_id;
103 	u8			phys_disk_num;		/* hrc - unique index*/
104 	struct scsi_device	*sdev;
105 };
106 
107 struct fw_event_work {
108 	struct list_head 	list;
109 	struct delayed_work	 work;
110 	MPT_ADAPTER	*ioc;
111 	u32			event;
112 	u8			retries;
113 	char			event_data[0] __aligned(4);
114 };
115 
116 struct mptsas_discovery_event {
117 	struct work_struct	work;
118 	MPT_ADAPTER		*ioc;
119 };
120 
121 /*
122  * SAS topology structures
123  *
124  * The MPT Fusion firmware interface spreads information about the
125  * SAS topology over many manufacture pages, thus we need some data
126  * structure to collect it and process it for the SAS transport class.
127  */
128 
129 struct mptsas_devinfo {
130 	u16	handle;		/* unique id to address this device */
131 	u16	handle_parent;	/* unique id to address parent device */
132 	u16	handle_enclosure; /* enclosure identifier of the enclosure */
133 	u16	slot;		/* physical slot in enclosure */
134 	u8	phy_id;		/* phy number of parent device */
135 	u8	port_id;	/* sas physical port this device
136 				   is assoc'd with */
137 	u8	id;		/* logical target id of this device */
138 	u32	phys_disk_num;	/* phys disk id, for csmi-ioctls */
139 	u8	channel;	/* logical bus number of this device */
140 	u64	sas_address;    /* WWN of this device,
141 				   SATA is assigned by HBA,expander */
142 	u32	device_info;	/* bitfield detailed info about this device */
143 	u16	flags;		/* sas device pg0 flags */
144 };
145 
146 /*
147  * Specific details on ports, wide/narrow
148  */
149 struct mptsas_portinfo_details{
150 	u16	num_phys;	/* number of phys belong to this port */
151 	u64	phy_bitmask; 	/* TODO, extend support for 255 phys */
152 	struct sas_rphy *rphy;	/* transport layer rphy object */
153 	struct sas_port *port;	/* transport layer port object */
154 	struct scsi_target *starget;
155 	struct mptsas_portinfo *port_info;
156 };
157 
158 struct mptsas_phyinfo {
159 	u16	handle;			/* unique id to address this */
160 	u8	phy_id; 		/* phy index */
161 	u8	port_id; 		/* firmware port identifier */
162 	u8	negotiated_link_rate;	/* nego'd link rate for this phy */
163 	u8	hw_link_rate; 		/* hardware max/min phys link rate */
164 	u8	programmed_link_rate;	/* programmed max/min phy link rate */
165 	u8	sas_port_add_phy;	/* flag to request sas_port_add_phy*/
166 	struct mptsas_devinfo identify;	/* point to phy device info */
167 	struct mptsas_devinfo attached;	/* point to attached device info */
168 	struct sas_phy *phy;		/* transport layer phy object */
169 	struct mptsas_portinfo *portinfo;
170 	struct mptsas_portinfo_details * port_details;
171 };
172 
173 struct mptsas_portinfo {
174 	struct list_head list;
175 	u16		num_phys;	/* number of phys */
176 	struct mptsas_phyinfo *phy_info;
177 };
178 
179 struct mptsas_enclosure {
180 	u64	enclosure_logical_id;	/* The WWN for the enclosure */
181 	u16	enclosure_handle;	/* unique id to address this */
182 	u16	flags;			/* details enclosure management */
183 	u16	num_slot;		/* num slots */
184 	u16	start_slot;		/* first slot */
185 	u8	start_id;		/* starting logical target id */
186 	u8	start_channel;		/* starting logical channel id */
187 	u8	sep_id;			/* SEP device logical target id */
188 	u8	sep_channel;		/* SEP channel logical channel id */
189 };
190 
191 /*}-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
192 #endif
193