diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/sym53c8xx_2/sym53c8xx.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/scsi/sym53c8xx_2/sym53c8xx.h')
-rw-r--r-- | drivers/scsi/sym53c8xx_2/sym53c8xx.h | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/drivers/scsi/sym53c8xx_2/sym53c8xx.h b/drivers/scsi/sym53c8xx_2/sym53c8xx.h new file mode 100644 index 000000000000..481103769729 --- /dev/null +++ b/drivers/scsi/sym53c8xx_2/sym53c8xx.h | |||
@@ -0,0 +1,217 @@ | |||
1 | /* | ||
2 | * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family | ||
3 | * of PCI-SCSI IO processors. | ||
4 | * | ||
5 | * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr> | ||
6 | * | ||
7 | * This driver is derived from the Linux sym53c8xx driver. | ||
8 | * Copyright (C) 1998-2000 Gerard Roudier | ||
9 | * | ||
10 | * The sym53c8xx driver is derived from the ncr53c8xx driver that had been | ||
11 | * a port of the FreeBSD ncr driver to Linux-1.2.13. | ||
12 | * | ||
13 | * The original ncr driver has been written for 386bsd and FreeBSD by | ||
14 | * Wolfgang Stanglmeier <wolf@cologne.de> | ||
15 | * Stefan Esser <se@mi.Uni-Koeln.de> | ||
16 | * Copyright (C) 1994 Wolfgang Stanglmeier | ||
17 | * | ||
18 | * Other major contributions: | ||
19 | * | ||
20 | * NVRAM detection and reading. | ||
21 | * Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk> | ||
22 | * | ||
23 | *----------------------------------------------------------------------------- | ||
24 | * | ||
25 | * This program is free software; you can redistribute it and/or modify | ||
26 | * it under the terms of the GNU General Public License as published by | ||
27 | * the Free Software Foundation; either version 2 of the License, or | ||
28 | * (at your option) any later version. | ||
29 | * | ||
30 | * This program is distributed in the hope that it will be useful, | ||
31 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
32 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
33 | * GNU General Public License for more details. | ||
34 | * | ||
35 | * You should have received a copy of the GNU General Public License | ||
36 | * along with this program; if not, write to the Free Software | ||
37 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
38 | */ | ||
39 | |||
40 | #ifndef SYM53C8XX_H | ||
41 | #define SYM53C8XX_H | ||
42 | |||
43 | #include <linux/config.h> | ||
44 | |||
45 | /* | ||
46 | * DMA addressing mode. | ||
47 | * | ||
48 | * 0 : 32 bit addressing for all chips. | ||
49 | * 1 : 40 bit addressing when supported by chip. | ||
50 | * 2 : 64 bit addressing when supported by chip, | ||
51 | * limited to 16 segments of 4 GB -> 64 GB max. | ||
52 | */ | ||
53 | #define SYM_CONF_DMA_ADDRESSING_MODE CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE | ||
54 | |||
55 | /* | ||
56 | * NVRAM support. | ||
57 | */ | ||
58 | #if 1 | ||
59 | #define SYM_CONF_NVRAM_SUPPORT (1) | ||
60 | #endif | ||
61 | |||
62 | /* | ||
63 | * These options are not tunable from 'make config' | ||
64 | */ | ||
65 | #if 1 | ||
66 | #define SYM_LINUX_PROC_INFO_SUPPORT | ||
67 | #define SYM_LINUX_USER_COMMAND_SUPPORT | ||
68 | #define SYM_LINUX_USER_INFO_SUPPORT | ||
69 | #define SYM_LINUX_DEBUG_CONTROL_SUPPORT | ||
70 | #endif | ||
71 | |||
72 | /* | ||
73 | * Also handle old NCR chips if not (0). | ||
74 | */ | ||
75 | #define SYM_CONF_GENERIC_SUPPORT (1) | ||
76 | |||
77 | /* | ||
78 | * Allow tags from 2 to 256, default 8 | ||
79 | */ | ||
80 | #ifndef CONFIG_SCSI_SYM53C8XX_MAX_TAGS | ||
81 | #define CONFIG_SCSI_SYM53C8XX_MAX_TAGS (8) | ||
82 | #endif | ||
83 | |||
84 | #if CONFIG_SCSI_SYM53C8XX_MAX_TAGS < 2 | ||
85 | #define SYM_CONF_MAX_TAG (2) | ||
86 | #elif CONFIG_SCSI_SYM53C8XX_MAX_TAGS > 256 | ||
87 | #define SYM_CONF_MAX_TAG (256) | ||
88 | #else | ||
89 | #define SYM_CONF_MAX_TAG CONFIG_SCSI_SYM53C8XX_MAX_TAGS | ||
90 | #endif | ||
91 | |||
92 | #ifndef CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS | ||
93 | #define CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS SYM_CONF_MAX_TAG | ||
94 | #endif | ||
95 | |||
96 | /* | ||
97 | * Anyway, we configure the driver for at least 64 tags per LUN. :) | ||
98 | */ | ||
99 | #if SYM_CONF_MAX_TAG <= 64 | ||
100 | #define SYM_CONF_MAX_TAG_ORDER (6) | ||
101 | #elif SYM_CONF_MAX_TAG <= 128 | ||
102 | #define SYM_CONF_MAX_TAG_ORDER (7) | ||
103 | #else | ||
104 | #define SYM_CONF_MAX_TAG_ORDER (8) | ||
105 | #endif | ||
106 | |||
107 | /* | ||
108 | * Max number of SG entries. | ||
109 | */ | ||
110 | #define SYM_CONF_MAX_SG (96) | ||
111 | |||
112 | /* | ||
113 | * Driver setup structure. | ||
114 | * | ||
115 | * This structure is initialized from linux config options. | ||
116 | * It can be overridden at boot-up by the boot command line. | ||
117 | */ | ||
118 | struct sym_driver_setup { | ||
119 | u_short max_tag; | ||
120 | u_char burst_order; | ||
121 | u_char scsi_led; | ||
122 | u_char scsi_diff; | ||
123 | u_char irq_mode; | ||
124 | u_char scsi_bus_check; | ||
125 | u_char host_id; | ||
126 | |||
127 | u_char verbose; | ||
128 | u_char settle_delay; | ||
129 | u_char use_nvram; | ||
130 | u_long excludes[8]; | ||
131 | char tag_ctrl[100]; | ||
132 | }; | ||
133 | |||
134 | #define SYM_SETUP_MAX_TAG sym_driver_setup.max_tag | ||
135 | #define SYM_SETUP_BURST_ORDER sym_driver_setup.burst_order | ||
136 | #define SYM_SETUP_SCSI_LED sym_driver_setup.scsi_led | ||
137 | #define SYM_SETUP_SCSI_DIFF sym_driver_setup.scsi_diff | ||
138 | #define SYM_SETUP_IRQ_MODE sym_driver_setup.irq_mode | ||
139 | #define SYM_SETUP_SCSI_BUS_CHECK sym_driver_setup.scsi_bus_check | ||
140 | #define SYM_SETUP_HOST_ID sym_driver_setup.host_id | ||
141 | #define boot_verbose sym_driver_setup.verbose | ||
142 | |||
143 | /* | ||
144 | * Initial setup. | ||
145 | * | ||
146 | * Can be overriden at startup by a command line. | ||
147 | */ | ||
148 | #define SYM_LINUX_DRIVER_SETUP { \ | ||
149 | .max_tag = CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS, \ | ||
150 | .burst_order = 7, \ | ||
151 | .scsi_led = 1, \ | ||
152 | .scsi_diff = 1, \ | ||
153 | .irq_mode = 0, \ | ||
154 | .scsi_bus_check = 1, \ | ||
155 | .host_id = 7, \ | ||
156 | .verbose = 0, \ | ||
157 | .settle_delay = 3, \ | ||
158 | .use_nvram = 1, \ | ||
159 | } | ||
160 | |||
161 | extern struct sym_driver_setup sym_driver_setup; | ||
162 | extern unsigned int sym_debug_flags; | ||
163 | #define DEBUG_FLAGS sym_debug_flags | ||
164 | |||
165 | /* | ||
166 | * Max number of targets. | ||
167 | * Maximum is 16 and you are advised not to change this value. | ||
168 | */ | ||
169 | #ifndef SYM_CONF_MAX_TARGET | ||
170 | #define SYM_CONF_MAX_TARGET (16) | ||
171 | #endif | ||
172 | |||
173 | /* | ||
174 | * Max number of logical units. | ||
175 | * SPI-2 allows up to 64 logical units, but in real life, target | ||
176 | * that implements more that 7 logical units are pretty rare. | ||
177 | * Anyway, the cost of accepting up to 64 logical unit is low in | ||
178 | * this driver, thus going with the maximum is acceptable. | ||
179 | */ | ||
180 | #ifndef SYM_CONF_MAX_LUN | ||
181 | #define SYM_CONF_MAX_LUN (64) | ||
182 | #endif | ||
183 | |||
184 | /* | ||
185 | * Max number of IO control blocks queued to the controller. | ||
186 | * Each entry needs 8 bytes and the queues are allocated contiguously. | ||
187 | * Since we donnot want to allocate more than a page, the theorical | ||
188 | * maximum is PAGE_SIZE/8. For safety, we announce a bit less to the | ||
189 | * access method. :) | ||
190 | * When not supplied, as it is suggested, the driver compute some | ||
191 | * good value for this parameter. | ||
192 | */ | ||
193 | /* #define SYM_CONF_MAX_START (PAGE_SIZE/8 - 16) */ | ||
194 | |||
195 | /* | ||
196 | * Support for Immediate Arbitration. | ||
197 | * Not advised. | ||
198 | */ | ||
199 | /* #define SYM_CONF_IARB_SUPPORT */ | ||
200 | |||
201 | /* | ||
202 | * Only relevant if IARB support configured. | ||
203 | * - Max number of successive settings of IARB hints. | ||
204 | * - Set IARB on arbitration lost. | ||
205 | */ | ||
206 | #define SYM_CONF_IARB_MAX 3 | ||
207 | #define SYM_CONF_SET_IARB_ON_ARB_LOST 1 | ||
208 | |||
209 | /* | ||
210 | * Returning wrong residuals may make problems. | ||
211 | * When zero, this define tells the driver to | ||
212 | * always return 0 as transfer residual. | ||
213 | * Btw, all my testings of residuals have succeeded. | ||
214 | */ | ||
215 | #define SYM_SETUP_RESIDUAL_SUPPORT 1 | ||
216 | |||
217 | #endif /* SYM53C8XX_H */ | ||