Diff markup
1 /* 1 /*
2 * eata.c - Low-level driver for EATA/DMA 2 * eata.c - Low-level driver for EATA/DMA SCSI host adapters.
3 * 3 *
4 * 03 Jun 2003 Rev. 8.10 for linux-2.5.70 4 * 03 Jun 2003 Rev. 8.10 for linux-2.5.70
5 * + Update for new IRQ API. 5 * + Update for new IRQ API.
6 * + Use "goto" when appropriate. 6 * + Use "goto" when appropriate.
7 * + Drop eata.h. 7 * + Drop eata.h.
8 * + Update for new module_param API. 8 * + Update for new module_param API.
9 * + Module parameters can now be spec 9 * + Module parameters can now be specified only in the
10 * same format as the kernel boot opt 10 * same format as the kernel boot options.
11 * 11 *
12 * boot option old module param 12 * boot option old module param
13 * ----------- ---------------- 13 * ----------- ------------------
14 * addr,... io_port=addr,... 14 * addr,... io_port=addr,...
15 * lc:[y|n] linked_comm=[1|0 15 * lc:[y|n] linked_comm=[1|0]
16 * mq:xx max_queue_depth= 16 * mq:xx max_queue_depth=xx
17 * tm:[0|1|2] tag_mode=[0|1|2] 17 * tm:[0|1|2] tag_mode=[0|1|2]
18 * et:[y|n] ext_tran=[1|0] 18 * et:[y|n] ext_tran=[1|0]
19 * rs:[y|n] rev_scan=[1|0] 19 * rs:[y|n] rev_scan=[1|0]
20 * ip:[y|n] isa_probe=[1|0] 20 * ip:[y|n] isa_probe=[1|0]
21 * ep:[y|n] eisa_probe=[1|0] 21 * ep:[y|n] eisa_probe=[1|0]
22 * pp:[y|n] pci_probe=[1|0] 22 * pp:[y|n] pci_probe=[1|0]
23 * 23 *
24 * A valid example using the new para 24 * A valid example using the new parameter format is:
25 * modprobe eata "eata=0x7410,0x230,l 25 * modprobe eata "eata=0x7410,0x230,lc:y,tm:0,mq:4,ep:n"
26 * 26 *
27 * which is equivalent to the old for 27 * which is equivalent to the old format:
28 * modprobe eata io_port=0x7410,0x230 28 * modprobe eata io_port=0x7410,0x230 linked_comm=1 tag_mode=0 \
29 * max_queue_depth=4 ei 29 * max_queue_depth=4 eisa_probe=0
30 * 30 *
31 * 12 Feb 2003 Rev. 8.04 for linux 2.5.60 31 * 12 Feb 2003 Rev. 8.04 for linux 2.5.60
32 * + Release irq before calling scsi_re 32 * + Release irq before calling scsi_register.
33 * 33 *
34 * 12 Nov 2002 Rev. 8.02 for linux 2.5.47 34 * 12 Nov 2002 Rev. 8.02 for linux 2.5.47
35 * + Release driver_lock before calling 35 * + Release driver_lock before calling scsi_register.
36 * 36 *
37 * 11 Nov 2002 Rev. 8.01 for linux 2.5.47 37 * 11 Nov 2002 Rev. 8.01 for linux 2.5.47
38 * + Fixed bios_param and scsicam_bios_ 38 * + Fixed bios_param and scsicam_bios_param calling parameters.
39 * 39 *
40 * 28 Oct 2002 Rev. 8.00 for linux 2.5.44 40 * 28 Oct 2002 Rev. 8.00 for linux 2.5.44-ac4
41 * + Use new tcq and adjust_queue_depth 41 * + Use new tcq and adjust_queue_depth api.
42 * + New command line option (tm:[0-2]) 42 * + New command line option (tm:[0-2]) to choose the type of tags:
43 * 0 -> disable tagging ; 1 -> simple 43 * 0 -> disable tagging ; 1 -> simple tags ; 2 -> ordered tags.
44 * Default is tm:0 (tagged commands d 44 * Default is tm:0 (tagged commands disabled).
45 * For compatibility the "tc:" option 45 * For compatibility the "tc:" option is an alias of the "tm:"
46 * option; tc:n is equivalent to tm:0 46 * option; tc:n is equivalent to tm:0 and tc:y is equivalent to
47 * tm:1. 47 * tm:1.
48 * + The tagged_comm module parameter h 48 * + The tagged_comm module parameter has been removed, use tag_mode
49 * instead, equivalent to the "tm:" b 49 * instead, equivalent to the "tm:" boot option.
50 * 50 *
51 * 10 Oct 2002 Rev. 7.70 for linux 2.5.42 51 * 10 Oct 2002 Rev. 7.70 for linux 2.5.42
52 * + Foreport from revision 6.70. 52 * + Foreport from revision 6.70.
53 * 53 *
54 * 25 Jun 2002 Rev. 6.70 for linux 2.4.19 54 * 25 Jun 2002 Rev. 6.70 for linux 2.4.19
55 * + This release is the first one test 55 * + This release is the first one tested on a Big Endian platform:
56 * fixed endian-ness problem due to b 56 * fixed endian-ness problem due to bitfields;
57 * fixed endian-ness problem in read_ 57 * fixed endian-ness problem in read_pio.
58 * + Added new options for selectively 58 * + Added new options for selectively probing ISA, EISA and PCI bus:
59 * 59 *
60 * Boot option Parameter name De 60 * Boot option Parameter name Default according to
61 * 61 *
62 * ip:[y|n] isa_probe=[1|0] CO 62 * ip:[y|n] isa_probe=[1|0] CONFIG_ISA defined
63 * ep:[y|n] eisa_probe=[1|0] CO 63 * ep:[y|n] eisa_probe=[1|0] CONFIG_EISA defined
64 * pp:[y|n] pci_probe=[1|0] CO 64 * pp:[y|n] pci_probe=[1|0] CONFIG_PCI defined
65 * 65 *
66 * The default action is to perform p 66 * The default action is to perform probing if the corrisponding
67 * bus is configured and to skip prob 67 * bus is configured and to skip probing otherwise.
68 * 68 *
69 * + If pci_probe is in effect and a li 69 * + If pci_probe is in effect and a list of I/O ports is specified
70 * as parameter or boot option, pci_e 70 * as parameter or boot option, pci_enable_device() is performed
71 * on all pci devices matching PCI_CL 71 * on all pci devices matching PCI_CLASS_STORAGE_SCSI.
72 * 72 *
73 * 21 Feb 2002 Rev. 6.52 for linux 2.4.18 73 * 21 Feb 2002 Rev. 6.52 for linux 2.4.18
74 * + Backport from rev. 7.22 (use io_re 74 * + Backport from rev. 7.22 (use io_request_lock).
75 * 75 *
76 * 20 Feb 2002 Rev. 7.22 for linux 2.5.5 76 * 20 Feb 2002 Rev. 7.22 for linux 2.5.5
77 * + Remove any reference to virt_to_bu 77 * + Remove any reference to virt_to_bus().
78 * + Fix pio hang while detecting multi 78 * + Fix pio hang while detecting multiple HBAs.
79 * + Fixed a board detection bug: in a 79 * + Fixed a board detection bug: in a system with
80 * multiple ISA/EISA boards, all but 80 * multiple ISA/EISA boards, all but the first one
81 * were erroneously detected as PCI. 81 * were erroneously detected as PCI.
82 * 82 *
83 * 01 Jan 2002 Rev. 7.20 for linux 2.5.1 83 * 01 Jan 2002 Rev. 7.20 for linux 2.5.1
84 * + Use the dynamic DMA mapping API. 84 * + Use the dynamic DMA mapping API.
85 * 85 *
86 * 19 Dec 2001 Rev. 7.02 for linux 2.5.1 86 * 19 Dec 2001 Rev. 7.02 for linux 2.5.1
87 * + Use SCpnt->sc_data_direction if se 87 * + Use SCpnt->sc_data_direction if set.
88 * + Use sglist.page instead of sglist. 88 * + Use sglist.page instead of sglist.address.
89 * 89 *
90 * 11 Dec 2001 Rev. 7.00 for linux 2.5.1 90 * 11 Dec 2001 Rev. 7.00 for linux 2.5.1
91 * + Use host->host_lock instead of io_ 91 * + Use host->host_lock instead of io_request_lock.
92 * 92 *
93 * 1 May 2001 Rev. 6.05 for linux 2.4.4 93 * 1 May 2001 Rev. 6.05 for linux 2.4.4
94 * + Clean up all pci related routines. 94 * + Clean up all pci related routines.
95 * + Fix data transfer direction for op 95 * + Fix data transfer direction for opcode SEND_CUE_SHEET (0x5d)
96 * 96 *
97 * 30 Jan 2001 Rev. 6.04 for linux 2.4.1 97 * 30 Jan 2001 Rev. 6.04 for linux 2.4.1
98 * + Call pci_resource_start after pci_ 98 * + Call pci_resource_start after pci_enable_device.
99 * 99 *
100 * 25 Jan 2001 Rev. 6.03 for linux 2.4.0 100 * 25 Jan 2001 Rev. 6.03 for linux 2.4.0
101 * + "check_region" call replaced by "r 101 * + "check_region" call replaced by "request_region".
102 * 102 *
103 * 22 Nov 2000 Rev. 6.02 for linux 2.4.0- 103 * 22 Nov 2000 Rev. 6.02 for linux 2.4.0-test11
104 * + Return code checked when calling p 104 * + Return code checked when calling pci_enable_device.
105 * + Removed old scsi error handling su 105 * + Removed old scsi error handling support.
106 * + The obsolete boot option flag eh:n 106 * + The obsolete boot option flag eh:n is silently ignored.
107 * + Removed error messages while a dis 107 * + Removed error messages while a disk drive is powered up at
108 * boot time. 108 * boot time.
109 * + Improved boot messages: all tagged 109 * + Improved boot messages: all tagged capable device are
110 * indicated as "tagged" or "soft-tag 110 * indicated as "tagged" or "soft-tagged" :
111 * - "soft-tagged" means that the dr 111 * - "soft-tagged" means that the driver is trying to do its
112 * own tagging (i.e. the tc:y optio 112 * own tagging (i.e. the tc:y option is in effect);
113 * - "tagged" means that the device s 113 * - "tagged" means that the device supports tagged commands,
114 * but the driver lets the HBA be r 114 * but the driver lets the HBA be responsible for tagging
115 * support. 115 * support.
116 * 116 *
117 * 16 Sep 1999 Rev. 5.11 for linux 2.2.12 117 * 16 Sep 1999 Rev. 5.11 for linux 2.2.12 and 2.3.18
118 * + Updated to the new __setup interfa 118 * + Updated to the new __setup interface for boot command line options.
119 * + When loaded as a module, accepts t 119 * + When loaded as a module, accepts the new parameter boot_options
120 * which value is a string with the s 120 * which value is a string with the same format of the kernel boot
121 * command line options. A valid exam 121 * command line options. A valid example is:
122 * modprobe eata 'boot_options="0x741 122 * modprobe eata 'boot_options="0x7410,0x230,lc:y,tc:n,mq:4"'
123 * 123 *
124 * 9 Sep 1999 Rev. 5.10 for linux 2.2.12 124 * 9 Sep 1999 Rev. 5.10 for linux 2.2.12 and 2.3.17
125 * + 64bit cleanup for Linux/Alpha plat 125 * + 64bit cleanup for Linux/Alpha platform support
126 * (contribution from H.J. Lu). 126 * (contribution from H.J. Lu).
127 * 127 *
128 * 22 Jul 1999 Rev. 5.00 for linux 2.2.10 128 * 22 Jul 1999 Rev. 5.00 for linux 2.2.10 and 2.3.11
129 * + Removed pre-2.2 source code compat 129 * + Removed pre-2.2 source code compatibility.
130 * + Added call to pci_set_master. 130 * + Added call to pci_set_master.
131 * 131 *
132 * 26 Jul 1998 Rev. 4.33 for linux 2.0.35 132 * 26 Jul 1998 Rev. 4.33 for linux 2.0.35 and 2.1.111
133 * + Added command line option (rs:[y|n 133 * + Added command line option (rs:[y|n]) to reverse the scan order
134 * of PCI boards. The default is rs:y 134 * of PCI boards. The default is rs:y, which reverses the BIOS order
135 * while registering PCI boards. The 135 * while registering PCI boards. The default value rs:y generates
136 * the same order of all previous rev 136 * the same order of all previous revisions of this driver.
137 * Pls. note that "BIOS order" might 137 * Pls. note that "BIOS order" might have been reversed itself
138 * after the 2.1.9x PCI modifications 138 * after the 2.1.9x PCI modifications in the linux kernel.
139 * The rs value is ignored when the e 139 * The rs value is ignored when the explicit list of addresses
140 * is used by the "eata=port0,port1,. 140 * is used by the "eata=port0,port1,..." command line option.
141 * + Added command line option (et:[y|n 141 * + Added command line option (et:[y|n]) to force use of extended
142 * translation (255 heads, 63 sectors 142 * translation (255 heads, 63 sectors) as disk geometry.
143 * The default is et:n, which uses th 143 * The default is et:n, which uses the disk geometry returned
144 * by scsicam_bios_param. The default 144 * by scsicam_bios_param. The default value et:n is compatible with
145 * all previous revisions of this dri 145 * all previous revisions of this driver.
146 * 146 *
147 * 28 May 1998 Rev. 4.32 for linux 2.0.33 147 * 28 May 1998 Rev. 4.32 for linux 2.0.33 and 2.1.104
148 * Increased busy timeout from 10 mse 148 * Increased busy timeout from 10 msec. to 200 msec. while
149 * processing interrupts. 149 * processing interrupts.
150 * 150 *
151 * 16 May 1998 Rev. 4.31 for linux 2.0.33 151 * 16 May 1998 Rev. 4.31 for linux 2.0.33 and 2.1.102
152 * Improved abort handling during the 152 * Improved abort handling during the eh recovery process.
153 * 153 *
154 * 13 May 1998 Rev. 4.30 for linux 2.0.33 154 * 13 May 1998 Rev. 4.30 for linux 2.0.33 and 2.1.101
155 * The driver is now fully SMP safe, 155 * The driver is now fully SMP safe, including the
156 * abort and reset routines. 156 * abort and reset routines.
157 * Added command line options (eh:[y| 157 * Added command line options (eh:[y|n]) to choose between
158 * new_eh_code and the old scsi code. 158 * new_eh_code and the old scsi code.
159 * If linux version >= 2.1.101 the de 159 * If linux version >= 2.1.101 the default is eh:y, while the eh
160 * option is ignored for previous rel 160 * option is ignored for previous releases and the old scsi code
161 * is used. 161 * is used.
162 * 162 *
163 * 18 Apr 1998 Rev. 4.20 for linux 2.0.33 163 * 18 Apr 1998 Rev. 4.20 for linux 2.0.33 and 2.1.97
164 * Reworked interrupt handler. 164 * Reworked interrupt handler.
165 * 165 *
166 * 11 Apr 1998 rev. 4.05 for linux 2.0.33 166 * 11 Apr 1998 rev. 4.05 for linux 2.0.33 and 2.1.95
167 * Major reliability improvement: whe 167 * Major reliability improvement: when a batch with overlapping
168 * requests is detected, requests are 168 * requests is detected, requests are queued one at a time
169 * eliminating any possible board or 169 * eliminating any possible board or drive reordering.
170 * 170 *
171 * 10 Apr 1998 rev. 4.04 for linux 2.0.33 171 * 10 Apr 1998 rev. 4.04 for linux 2.0.33 and 2.1.95
172 * Improved SMP support (if linux ver 172 * Improved SMP support (if linux version >= 2.1.95).
173 * 173 *
174 * 9 Apr 1998 rev. 4.03 for linux 2.0.33 174 * 9 Apr 1998 rev. 4.03 for linux 2.0.33 and 2.1.94
175 * Added support for new PCI code and 175 * Added support for new PCI code and IO-APIC remapping of irqs.
176 * Performance improvement: when sequ 176 * Performance improvement: when sequential i/o is detected,
177 * always use direct sort instead of 177 * always use direct sort instead of reverse sort.
178 * 178 *
179 * 4 Apr 1998 rev. 4.02 for linux 2.0.33 179 * 4 Apr 1998 rev. 4.02 for linux 2.0.33 and 2.1.92
180 * io_port is now unsigned long. 180 * io_port is now unsigned long.
181 * 181 *
182 * 17 Mar 1998 rev. 4.01 for linux 2.0.33 182 * 17 Mar 1998 rev. 4.01 for linux 2.0.33 and 2.1.88
183 * Use new scsi error handling code ( 183 * Use new scsi error handling code (if linux version >= 2.1.88).
184 * Use new interrupt code. 184 * Use new interrupt code.
185 * 185 *
186 * 12 Sep 1997 rev. 3.11 for linux 2.0.30 186 * 12 Sep 1997 rev. 3.11 for linux 2.0.30 and 2.1.55
187 * Use of udelay inside the wait loop 187 * Use of udelay inside the wait loops to avoid timeout
188 * problems with fast cpus. 188 * problems with fast cpus.
189 * Removed check about useless calls 189 * Removed check about useless calls to the interrupt service
190 * routine (reported on SMP systems o 190 * routine (reported on SMP systems only).
191 * At initialization time "sorted/uns 191 * At initialization time "sorted/unsorted" is displayed instead
192 * of "linked/unlinked" to reinforce 192 * of "linked/unlinked" to reinforce the fact that "linking" is
193 * nothing but "elevator sorting" in 193 * nothing but "elevator sorting" in the actual implementation.
194 * 194 *
195 * 17 May 1997 rev. 3.10 for linux 2.0.30 195 * 17 May 1997 rev. 3.10 for linux 2.0.30 and 2.1.38
196 * Use of serial_number_at_timeout in 196 * Use of serial_number_at_timeout in abort and reset processing.
197 * Use of the __initfunc and __initda 197 * Use of the __initfunc and __initdata macro in setup code.
198 * Minor cleanups in the list_statist 198 * Minor cleanups in the list_statistics code.
199 * Increased controller busy timeout 199 * Increased controller busy timeout in order to better support
200 * slow SCSI devices. 200 * slow SCSI devices.
201 * 201 *
202 * 24 Feb 1997 rev. 3.00 for linux 2.0.29 202 * 24 Feb 1997 rev. 3.00 for linux 2.0.29 and 2.1.26
203 * When loading as a module, paramete 203 * When loading as a module, parameter passing is now supported
204 * both in 2.0 and in 2.1 style. 204 * both in 2.0 and in 2.1 style.
205 * Fixed data transfer direction for 205 * Fixed data transfer direction for some SCSI opcodes.
206 * Immediate acknowledge to request s 206 * Immediate acknowledge to request sense commands.
207 * Linked commands to each disk devic 207 * Linked commands to each disk device are now reordered by elevator
208 * sorting. Rare cases in which reord 208 * sorting. Rare cases in which reordering of write requests could
209 * cause wrong results are managed. 209 * cause wrong results are managed.
210 * Fixed spurious timeouts caused by 210 * Fixed spurious timeouts caused by long simple queue tag sequences.
211 * New command line option (tm:[0-3]) 211 * New command line option (tm:[0-3]) to choose the type of tags:
212 * 0 -> mixed (default); 1 -> simple; 212 * 0 -> mixed (default); 1 -> simple; 2 -> head; 3 -> ordered.
213 * 213 *
214 * 18 Jan 1997 rev. 2.60 for linux 2.1.21 214 * 18 Jan 1997 rev. 2.60 for linux 2.1.21 and 2.0.28
215 * Added command line options to enab 215 * Added command line options to enable/disable linked commands
216 * (lc:[y|n]), tagged commands (tc:[y 216 * (lc:[y|n]), tagged commands (tc:[y|n]) and to set the max queue
217 * depth (mq:xx). Default is "eata=lc 217 * depth (mq:xx). Default is "eata=lc:n,tc:n,mq:16".
218 * Improved command linking. 218 * Improved command linking.
219 * Documented how to setup RAID-0 wit 219 * Documented how to setup RAID-0 with DPT SmartRAID boards.
220 * 220 *
221 * 8 Jan 1997 rev. 2.50 for linux 2.1.20 221 * 8 Jan 1997 rev. 2.50 for linux 2.1.20 and 2.0.27
222 * Added linked command support. 222 * Added linked command support.
223 * Improved detection of PCI boards u 223 * Improved detection of PCI boards using ISA base addresses.
224 * 224 *
225 * 3 Dec 1996 rev. 2.40 for linux 2.1.14 225 * 3 Dec 1996 rev. 2.40 for linux 2.1.14 and 2.0.27
226 * Added support for tagged commands 226 * Added support for tagged commands and queue depth adjustment.
227 * 227 *
228 * 22 Nov 1996 rev. 2.30 for linux 2.1.12 228 * 22 Nov 1996 rev. 2.30 for linux 2.1.12 and 2.0.26
229 * When CONFIG_PCI is defined, BIOS32 229 * When CONFIG_PCI is defined, BIOS32 is used to include in the
230 * list of i/o ports to be probed all 230 * list of i/o ports to be probed all the PCI SCSI controllers.
231 * The list of i/o ports to be probed 231 * The list of i/o ports to be probed can be overwritten by the
232 * "eata=port0,port1,...." boot comma 232 * "eata=port0,port1,...." boot command line option.
233 * Scatter/gather lists are now alloc 233 * Scatter/gather lists are now allocated by a number of kmalloc
234 * calls, in order to avoid the previ 234 * calls, in order to avoid the previous size limit of 64Kb.
235 * 235 *
236 * 16 Nov 1996 rev. 2.20 for linux 2.1.10 236 * 16 Nov 1996 rev. 2.20 for linux 2.1.10 and 2.0.25
237 * Added support for EATA 2.0C, PCI, 237 * Added support for EATA 2.0C, PCI, multichannel and wide SCSI.
238 * 238 *
239 * 27 Sep 1996 rev. 2.12 for linux 2.1.0 239 * 27 Sep 1996 rev. 2.12 for linux 2.1.0
240 * Portability cleanups (virtual/bus 240 * Portability cleanups (virtual/bus addressing, little/big endian
241 * support). 241 * support).
242 * 242 *
243 * 09 Jul 1996 rev. 2.11 for linux 2.0.4 243 * 09 Jul 1996 rev. 2.11 for linux 2.0.4
244 * Number of internal retries is now 244 * Number of internal retries is now limited.
245 * 245 *
246 * 16 Apr 1996 rev. 2.10 for linux 1.3.90 246 * 16 Apr 1996 rev. 2.10 for linux 1.3.90
247 * New argument "reset_flags" to the 247 * New argument "reset_flags" to the reset routine.
248 * 248 *
249 * 6 Jul 1995 rev. 2.01 for linux 1.3.7 249 * 6 Jul 1995 rev. 2.01 for linux 1.3.7
250 * Update required by the new /proc/s 250 * Update required by the new /proc/scsi support.
251 * 251 *
252 * 11 Mar 1995 rev. 2.00 for linux 1.2.0 252 * 11 Mar 1995 rev. 2.00 for linux 1.2.0
253 * Fixed a bug which prevented media 253 * Fixed a bug which prevented media change detection for removable
254 * disk drives. 254 * disk drives.
255 * 255 *
256 * 23 Feb 1995 rev. 1.18 for linux 1.1.94 256 * 23 Feb 1995 rev. 1.18 for linux 1.1.94
257 * Added a check for scsi_register re 257 * Added a check for scsi_register returning NULL.
258 * 258 *
259 * 11 Feb 1995 rev. 1.17 for linux 1.1.91 259 * 11 Feb 1995 rev. 1.17 for linux 1.1.91
260 * Now DEBUG_RESET is disabled by def 260 * Now DEBUG_RESET is disabled by default.
261 * Register a board even if it does n 261 * Register a board even if it does not assert DMA protocol support
262 * (DPT SK2011B does not report corre 262 * (DPT SK2011B does not report correctly the dmasup bit).
263 * 263 *
264 * 9 Feb 1995 rev. 1.16 for linux 1.1.90 264 * 9 Feb 1995 rev. 1.16 for linux 1.1.90
265 * Use host->wish_block instead of ho 265 * Use host->wish_block instead of host->block.
266 * New list of Data Out SCSI commands 266 * New list of Data Out SCSI commands.
267 * 267 *
268 * 8 Feb 1995 rev. 1.15 for linux 1.1.89 268 * 8 Feb 1995 rev. 1.15 for linux 1.1.89
269 * Cleared target_time_out counter wh 269 * Cleared target_time_out counter while performing a reset.
270 * All external symbols renamed to av 270 * All external symbols renamed to avoid possible name conflicts.
271 * 271 *
272 * 28 Jan 1995 rev. 1.14 for linux 1.1.86 272 * 28 Jan 1995 rev. 1.14 for linux 1.1.86
273 * Added module support. 273 * Added module support.
274 * Log and do a retry when a disk dri 274 * Log and do a retry when a disk drive returns a target status
275 * different from zero on a recovered 275 * different from zero on a recovered error.
276 * 276 *
277 * 24 Jan 1995 rev. 1.13 for linux 1.1.85 277 * 24 Jan 1995 rev. 1.13 for linux 1.1.85
278 * Use optimized board configuration, 278 * Use optimized board configuration, with a measured performance
279 * increase in the range 10%-20% on i 279 * increase in the range 10%-20% on i/o throughput.
280 * 280 *
281 * 16 Jan 1995 rev. 1.12 for linux 1.1.81 281 * 16 Jan 1995 rev. 1.12 for linux 1.1.81
282 * Fix mscp structure comments (no fu 282 * Fix mscp structure comments (no functional change).
283 * Display a message if check_region 283 * Display a message if check_region detects a port address
284 * already in use. 284 * already in use.
285 * 285 *
286 * 17 Dec 1994 rev. 1.11 for linux 1.1.74 286 * 17 Dec 1994 rev. 1.11 for linux 1.1.74
287 * Use the scsicam_bios_param routine 287 * Use the scsicam_bios_param routine. This allows an easy
288 * migration path from disk partition 288 * migration path from disk partition tables created using
289 * different SCSI drivers and non opt 289 * different SCSI drivers and non optimal disk geometry.
290 * 290 *
291 * 15 Dec 1994 rev. 1.10 for linux 1.1.74 291 * 15 Dec 1994 rev. 1.10 for linux 1.1.74
292 * Added support for ISA EATA boards 292 * Added support for ISA EATA boards (DPT PM2011, DPT PM2021).
293 * The host->block flag is set for al 293 * The host->block flag is set for all the detected ISA boards.
294 * The detect routine no longer enfor 294 * The detect routine no longer enforces LEVEL triggering
295 * for EISA boards, it just prints a 295 * for EISA boards, it just prints a warning message.
296 * 296 *
297 * 30 Nov 1994 rev. 1.09 for linux 1.1.68 297 * 30 Nov 1994 rev. 1.09 for linux 1.1.68
298 * Redo i/o on target status CHECK_CO 298 * Redo i/o on target status CHECK_CONDITION for TYPE_DISK only.
299 * Added optional support for using a 299 * Added optional support for using a single board at a time.
300 * 300 *
301 * 18 Nov 1994 rev. 1.08 for linux 1.1.64 301 * 18 Nov 1994 rev. 1.08 for linux 1.1.64
302 * Forces sg_tablesize = 64 and can_q 302 * Forces sg_tablesize = 64 and can_queue = 64 if these
303 * values are not correctly detected 303 * values are not correctly detected (DPT PM2012).
304 * 304 *
305 * 14 Nov 1994 rev. 1.07 for linux 1.1.63 305 * 14 Nov 1994 rev. 1.07 for linux 1.1.63 Final BETA release.
306 * 04 Aug 1994 rev. 1.00 for linux 1.1.39 306 * 04 Aug 1994 rev. 1.00 for linux 1.1.39 First BETA release.
307 * 307 *
308 * 308 *
309 * This driver is based on the CAM (C 309 * This driver is based on the CAM (Common Access Method Committee)
310 * EATA (Enhanced AT Bus Attachment) 310 * EATA (Enhanced AT Bus Attachment) rev. 2.0A, using DMA protocol.
311 * 311 *
312 * Copyright (C) 1994-2003 Dario Ballabio (ba 312 * Copyright (C) 1994-2003 Dario Ballabio (ballabio_dario@emc.com)
313 * 313 *
314 * Alternate email: dario.ballabio@inwind.it, 314 * Alternate email: dario.ballabio@inwind.it, dario.ballabio@tiscalinet.it
315 * 315 *
316 * Redistribution and use in source and binar 316 * Redistribution and use in source and binary forms, with or without
317 * modification, are permitted provided that 317 * modification, are permitted provided that redistributions of source
318 * code retain the above copyright notice and 318 * code retain the above copyright notice and this comment without
319 * modification. 319 * modification.
320 * 320 *
321 */ 321 */
322 322
323 /* 323 /*
324 * 324 *
325 * Here is a brief description of the DPT SCS 325 * Here is a brief description of the DPT SCSI host adapters.
326 * All these boards provide an EATA/DMA compa 326 * All these boards provide an EATA/DMA compatible programming interface
327 * and are fully supported by this driver in 327 * and are fully supported by this driver in any configuration, including
328 * multiple SCSI channels: 328 * multiple SCSI channels:
329 * 329 *
330 * PM2011B/9X - Entry Level ISA 330 * PM2011B/9X - Entry Level ISA
331 * PM2021A/9X - High Performance ISA 331 * PM2021A/9X - High Performance ISA
332 * PM2012A Old EISA 332 * PM2012A Old EISA
333 * PM2012B Old EISA 333 * PM2012B Old EISA
334 * PM2022A/9X - Entry Level EISA 334 * PM2022A/9X - Entry Level EISA
335 * PM2122A/9X - High Performance EISA 335 * PM2122A/9X - High Performance EISA
336 * PM2322A/9X - Extra High Performance EISA 336 * PM2322A/9X - Extra High Performance EISA
337 * PM3021 - SmartRAID Adapter for ISA 337 * PM3021 - SmartRAID Adapter for ISA
338 * PM3222 - SmartRAID Adapter for EISA ( 338 * PM3222 - SmartRAID Adapter for EISA (PM3222W is 16-bit wide SCSI)
339 * PM3224 - SmartRAID Adapter for PCI ( 339 * PM3224 - SmartRAID Adapter for PCI (PM3224W is 16-bit wide SCSI)
340 * PM33340UW - SmartRAID Adapter for PCI u 340 * PM33340UW - SmartRAID Adapter for PCI ultra wide multichannel
341 * 341 *
342 * The above list is just an indication: as a 342 * The above list is just an indication: as a matter of fact all DPT
343 * boards using the EATA/DMA protocol are sup 343 * boards using the EATA/DMA protocol are supported by this driver,
344 * since they use exactely the same programmi 344 * since they use exactely the same programming interface.
345 * 345 *
346 * The DPT PM2001 provides only the EATA/PIO 346 * The DPT PM2001 provides only the EATA/PIO interface and hence is not
347 * supported by this driver. 347 * supported by this driver.
348 * 348 *
349 * This code has been tested with up to 3 Dis 349 * This code has been tested with up to 3 Distributed Processing Technology
350 * PM2122A/9X (DPT SCSI BIOS v002.D1, firmwar 350 * PM2122A/9X (DPT SCSI BIOS v002.D1, firmware v05E.0) EISA controllers,
351 * in any combination of private and shared I 351 * in any combination of private and shared IRQ.
352 * PCI support has been tested using up to 2 352 * PCI support has been tested using up to 2 DPT PM3224W (DPT SCSI BIOS
353 * v003.D0, firmware v07G.0). 353 * v003.D0, firmware v07G.0).
354 * 354 *
355 * DPT SmartRAID boards support "Hardware Arr 355 * DPT SmartRAID boards support "Hardware Array" - a group of disk drives
356 * which are all members of the same RAID-0, 356 * which are all members of the same RAID-0, RAID-1 or RAID-5 array implemented
357 * in host adapter hardware. Hardware Arrays 357 * in host adapter hardware. Hardware Arrays are fully compatible with this
358 * driver, since they look to it as a single 358 * driver, since they look to it as a single disk drive.
359 * 359 *
360 * WARNING: to create a RAID-0 "Hardware Arra 360 * WARNING: to create a RAID-0 "Hardware Array" you must select "Other Unix"
361 * as the current OS in the DPTMGR "Initial S 361 * as the current OS in the DPTMGR "Initial System Installation" menu.
362 * Otherwise RAID-0 is generated as an "Array 362 * Otherwise RAID-0 is generated as an "Array Group" (i.e. software RAID-0),
363 * which is not supported by the actual SCSI 363 * which is not supported by the actual SCSI subsystem.
364 * To get the "Array Group" functionality, th 364 * To get the "Array Group" functionality, the Linux MD driver must be used
365 * instead of the DPT "Array Group" feature. 365 * instead of the DPT "Array Group" feature.
366 * 366 *
367 * Multiple ISA, EISA and PCI boards can be c 367 * Multiple ISA, EISA and PCI boards can be configured in the same system.
368 * It is suggested to put all the EISA boards 368 * It is suggested to put all the EISA boards on the same IRQ level, all
369 * the PCI boards on another IRQ level, whil 369 * the PCI boards on another IRQ level, while ISA boards cannot share
370 * interrupts. 370 * interrupts.
371 * 371 *
372 * If you configure multiple boards on the sa 372 * If you configure multiple boards on the same IRQ, the interrupt must
373 * be _level_ triggered (not _edge_ triggered 373 * be _level_ triggered (not _edge_ triggered).
374 * 374 *
375 * This driver detects EATA boards by probes 375 * This driver detects EATA boards by probes at fixed port addresses,
376 * so no BIOS32 or PCI BIOS support is requir 376 * so no BIOS32 or PCI BIOS support is required.
377 * The suggested way to detect a generic EATA 377 * The suggested way to detect a generic EATA PCI board is to force on it
378 * any unused EISA address, even if there are 378 * any unused EISA address, even if there are other controllers on the EISA
379 * bus, or even if you system has no EISA bus 379 * bus, or even if you system has no EISA bus at all.
380 * Do not force any ISA address on EATA PCI b 380 * Do not force any ISA address on EATA PCI boards.
381 * 381 *
382 * If PCI bios support is configured into the 382 * If PCI bios support is configured into the kernel, BIOS32 is used to
383 * include in the list of i/o ports to be pro 383 * include in the list of i/o ports to be probed all the PCI SCSI controllers.
384 * 384 *
385 * Due to a DPT BIOS "feature", it might not 385 * Due to a DPT BIOS "feature", it might not be possible to force an EISA
386 * address on more than a single DPT PCI boar 386 * address on more than a single DPT PCI board, so in this case you have to
387 * let the PCI BIOS assign the addresses. 387 * let the PCI BIOS assign the addresses.
388 * 388 *
389 * The sequence of detection probes is: 389 * The sequence of detection probes is:
390 * 390 *
391 * - ISA 0x1F0; 391 * - ISA 0x1F0;
392 * - PCI SCSI controllers (only if BIOS32 is 392 * - PCI SCSI controllers (only if BIOS32 is available);
393 * - EISA/PCI 0x1C88 through 0xFC88 (correspo 393 * - EISA/PCI 0x1C88 through 0xFC88 (corresponding to EISA slots 1 to 15);
394 * - ISA 0x170, 0x230, 0x330. 394 * - ISA 0x170, 0x230, 0x330.
395 * 395 *
396 * The above list of detection probes can be 396 * The above list of detection probes can be totally replaced by the
397 * boot command line option: "eata=port0,port 397 * boot command line option: "eata=port0,port1,port2,...", where the
398 * port0, port1... arguments are ISA/EISA/PCI 398 * port0, port1... arguments are ISA/EISA/PCI addresses to be probed.
399 * For example using "eata=0x7410,0x7450,0x23 399 * For example using "eata=0x7410,0x7450,0x230", the driver probes
400 * only the two PCI addresses 0x7410 and 0x74 400 * only the two PCI addresses 0x7410 and 0x7450 and the ISA address 0x230,
401 * in this order; "eata=0" totally disables t 401 * in this order; "eata=0" totally disables this driver.
402 * 402 *
403 * After the optional list of detection probe 403 * After the optional list of detection probes, other possible command line
404 * options are: 404 * options are:
405 * 405 *
406 * et:y force use of extended translation (2 406 * et:y force use of extended translation (255 heads, 63 sectors);
407 * et:n use disk geometry detected by scsica 407 * et:n use disk geometry detected by scsicam_bios_param;
408 * rs:y reverse scan order while detecting P 408 * rs:y reverse scan order while detecting PCI boards;
409 * rs:n use BIOS order while detecting PCI b 409 * rs:n use BIOS order while detecting PCI boards;
410 * lc:y enables linked commands; 410 * lc:y enables linked commands;
411 * lc:n disables linked commands; 411 * lc:n disables linked commands;
412 * tm:0 disables tagged commands (same as tc 412 * tm:0 disables tagged commands (same as tc:n);
413 * tm:1 use simple queue tags (same as tc:y) 413 * tm:1 use simple queue tags (same as tc:y);
414 * tm:2 use ordered queue tags (same as tc:2 414 * tm:2 use ordered queue tags (same as tc:2);
415 * mq:xx set the max queue depth to the value 415 * mq:xx set the max queue depth to the value xx (2 <= xx <= 32).
416 * 416 *
417 * The default value is: "eata=lc:n,mq:16,tm: 417 * The default value is: "eata=lc:n,mq:16,tm:0,et:n,rs:n".
418 * An example using the list of detection pro 418 * An example using the list of detection probes could be:
419 * "eata=0x7410,0x230,lc:y,tm:2,mq:4,et:n". 419 * "eata=0x7410,0x230,lc:y,tm:2,mq:4,et:n".
420 * 420 *
421 * When loading as a module, parameters can b 421 * When loading as a module, parameters can be specified as well.
422 * The above example would be (use 1 in place 422 * The above example would be (use 1 in place of y and 0 in place of n):
423 * 423 *
424 * modprobe eata io_port=0x7410,0x230 linked_ 424 * modprobe eata io_port=0x7410,0x230 linked_comm=1 \
425 * max_queue_depth=4 ext_tran=0 425 * max_queue_depth=4 ext_tran=0 tag_mode=2 \
426 * rev_scan=1 426 * rev_scan=1
427 * 427 *
428 * ------------------------------------------ 428 * ----------------------------------------------------------------------------
429 * In this implementation, linked commands ar 429 * In this implementation, linked commands are designed to work with any DISK
430 * or CD-ROM, since this linking has only the 430 * or CD-ROM, since this linking has only the intent of clustering (time-wise)
431 * and reordering by elevator sorting command 431 * and reordering by elevator sorting commands directed to each device,
432 * without any relation with the actual SCSI 432 * without any relation with the actual SCSI protocol between the controller
433 * and the device. 433 * and the device.
434 * If Q is the queue depth reported at boot t 434 * If Q is the queue depth reported at boot time for each device (also named
435 * cmds/lun) and Q > 2, whenever there is alr 435 * cmds/lun) and Q > 2, whenever there is already an active command to the
436 * device all other commands to the same devi 436 * device all other commands to the same device (up to Q-1) are kept waiting
437 * in the elevator sorting queue. When the ac 437 * in the elevator sorting queue. When the active command completes, the
438 * commands in this queue are sorted by secto 438 * commands in this queue are sorted by sector address. The sort is chosen
439 * between increasing or decreasing by minimi 439 * between increasing or decreasing by minimizing the seek distance between
440 * the sector of the commands just completed 440 * the sector of the commands just completed and the sector of the first
441 * command in the list to be sorted. 441 * command in the list to be sorted.
442 * Trivial math assures that the unsorted ave 442 * Trivial math assures that the unsorted average seek distance when doing
443 * random seeks over S sectors is S/3. 443 * random seeks over S sectors is S/3.
444 * When (Q-1) requests are uniformly distribu 444 * When (Q-1) requests are uniformly distributed over S sectors, the average
445 * distance between two adjacent requests is 445 * distance between two adjacent requests is S/((Q-1) + 1), so the sorted
446 * average seek distance for (Q-1) random req 446 * average seek distance for (Q-1) random requests over S sectors is S/Q.
447 * The elevator sorting hence divides the see 447 * The elevator sorting hence divides the seek distance by a factor Q/3.
448 * The above pure geometric remarks are valid 448 * The above pure geometric remarks are valid in all cases and the
449 * driver effectively reduces the seek distan 449 * driver effectively reduces the seek distance by the predicted factor
450 * when there are Q concurrent read i/o opera 450 * when there are Q concurrent read i/o operations on the device, but this
451 * does not necessarily results in a noticeab 451 * does not necessarily results in a noticeable performance improvement:
452 * your mileage may vary.... 452 * your mileage may vary....
453 * 453 *
454 * Note: command reordering inside a batch of 454 * Note: command reordering inside a batch of queued commands could cause
455 * wrong results only if there is at le 455 * wrong results only if there is at least one write request and the
456 * intersection (sector-wise) of all re 456 * intersection (sector-wise) of all requests is not empty.
457 * When the driver detects a batch incl 457 * When the driver detects a batch including overlapping requests
458 * (a really rare event) strict serial 458 * (a really rare event) strict serial (pid) order is enforced.
459 * ------------------------------------------ 459 * ----------------------------------------------------------------------------
460 * The extended translation option (et:y) is 460 * The extended translation option (et:y) is useful when using large physical
461 * disks/arrays. It could also be useful when 461 * disks/arrays. It could also be useful when switching between Adaptec boards
462 * and DPT boards without reformatting the di 462 * and DPT boards without reformatting the disk.
463 * When a boot disk is partitioned with exten 463 * When a boot disk is partitioned with extended translation, in order to
464 * be able to boot it with a DPT board is cou 464 * be able to boot it with a DPT board is could be necessary to add to
465 * lilo.conf additional commands as in the fo 465 * lilo.conf additional commands as in the following example:
466 * 466 *
467 * fix-table 467 * fix-table
468 * disk=/dev/sda bios=0x80 sectors=63 heads=1 468 * disk=/dev/sda bios=0x80 sectors=63 heads=128 cylindres=546
469 * 469 *
470 * where the above geometry should be replace 470 * where the above geometry should be replaced with the one reported at
471 * power up by the DPT controller. 471 * power up by the DPT controller.
472 * ------------------------------------------ 472 * ----------------------------------------------------------------------------
473 * 473 *
474 * The boards are named EATA0, EATA1,... acco 474 * The boards are named EATA0, EATA1,... according to the detection order.
475 * 475 *
476 * In order to support multiple ISA boards in 476 * In order to support multiple ISA boards in a reliable way,
477 * the driver sets host->wish_block = 1 for a 477 * the driver sets host->wish_block = 1 for all ISA boards.
478 */ 478 */
479 479
480 #include <linux/string.h> 480 #include <linux/string.h>
481 #include <linux/kernel.h> 481 #include <linux/kernel.h>
482 #include <linux/ioport.h> 482 #include <linux/ioport.h>
483 #include <linux/delay.h> 483 #include <linux/delay.h>
484 #include <linux/proc_fs.h> 484 #include <linux/proc_fs.h>
485 #include <linux/blkdev.h> 485 #include <linux/blkdev.h>
486 #include <linux/interrupt.h> 486 #include <linux/interrupt.h>
487 #include <linux/stat.h> 487 #include <linux/stat.h>
488 #include <linux/pci.h> 488 #include <linux/pci.h>
489 #include <linux/init.h> 489 #include <linux/init.h>
490 #include <linux/ctype.h> 490 #include <linux/ctype.h>
491 #include <linux/spinlock.h> 491 #include <linux/spinlock.h>
492 #include <linux/dma-mapping.h> 492 #include <linux/dma-mapping.h>
493 #include <asm/byteorder.h> 493 #include <asm/byteorder.h>
494 #include <asm/dma.h> 494 #include <asm/dma.h>
495 #include <asm/io.h> 495 #include <asm/io.h>
496 #include <asm/irq.h> 496 #include <asm/irq.h>
497 497
498 #include <scsi/scsi.h> 498 #include <scsi/scsi.h>
499 #include <scsi/scsi_cmnd.h> 499 #include <scsi/scsi_cmnd.h>
500 #include <scsi/scsi_device.h> 500 #include <scsi/scsi_device.h>
501 #include <scsi/scsi_host.h> 501 #include <scsi/scsi_host.h>
502 #include <scsi/scsi_tcq.h> 502 #include <scsi/scsi_tcq.h>
503 #include <scsi/scsicam.h> 503 #include <scsi/scsicam.h>
504 504
505 static int eata2x_detect(struct scsi_host_temp 505 static int eata2x_detect(struct scsi_host_template *);
506 static int eata2x_release(struct Scsi_Host *); 506 static int eata2x_release(struct Scsi_Host *);
507 static int eata2x_queuecommand(struct scsi_cmn 507 static int eata2x_queuecommand(struct scsi_cmnd *,
508 void (*done) (s 508 void (*done) (struct scsi_cmnd *));
509 static int eata2x_eh_abort(struct scsi_cmnd *) 509 static int eata2x_eh_abort(struct scsi_cmnd *);
510 static int eata2x_eh_host_reset(struct scsi_cm 510 static int eata2x_eh_host_reset(struct scsi_cmnd *);
511 static int eata2x_bios_param(struct scsi_devic 511 static int eata2x_bios_param(struct scsi_device *, struct block_device *,
512 sector_t, int *); 512 sector_t, int *);
513 static int eata2x_slave_configure(struct scsi_ 513 static int eata2x_slave_configure(struct scsi_device *);
514 514
515 static struct scsi_host_template driver_templa 515 static struct scsi_host_template driver_template = {
516 .name = "EATA/DMA 2.0x rev. 8.10.00 ", 516 .name = "EATA/DMA 2.0x rev. 8.10.00 ",
517 .detect = eata2x_detect, 517 .detect = eata2x_detect,
518 .release = eata2x_release, 518 .release = eata2x_release,
519 .queuecommand = eata2x_queuecommand, 519 .queuecommand = eata2x_queuecommand,
520 .eh_abort_handler = eata2x_eh_abort, 520 .eh_abort_handler = eata2x_eh_abort,
521 .eh_host_reset_handler = eata2x_eh_hos 521 .eh_host_reset_handler = eata2x_eh_host_reset,
522 .bios_param = eata2x_bios_param, 522 .bios_param = eata2x_bios_param,
523 .slave_configure = eata2x_slave_config 523 .slave_configure = eata2x_slave_configure,
524 .this_id = 7, 524 .this_id = 7,
525 .unchecked_isa_dma = 1, 525 .unchecked_isa_dma = 1,
526 .use_clustering = ENABLE_CLUSTERING, 526 .use_clustering = ENABLE_CLUSTERING,
527 }; 527 };
528 528
529 #if !defined(__BIG_ENDIAN_BITFIELD) && !define 529 #if !defined(__BIG_ENDIAN_BITFIELD) && !defined(__LITTLE_ENDIAN_BITFIELD)
530 #error "Adjust your <asm/byteorder.h> defines" 530 #error "Adjust your <asm/byteorder.h> defines"
531 #endif 531 #endif
532 532
533 /* Subversion values */ 533 /* Subversion values */
534 #define ISA 0 534 #define ISA 0
535 #define ESA 1 535 #define ESA 1
536 536
537 #undef FORCE_CONFIG 537 #undef FORCE_CONFIG
538 538
539 #undef DEBUG_LINKED_COMMANDS 539 #undef DEBUG_LINKED_COMMANDS
540 #undef DEBUG_DETECT 540 #undef DEBUG_DETECT
541 #undef DEBUG_PCI_DETECT 541 #undef DEBUG_PCI_DETECT
542 #undef DEBUG_INTERRUPT 542 #undef DEBUG_INTERRUPT
543 #undef DEBUG_RESET 543 #undef DEBUG_RESET
544 #undef DEBUG_GENERATE_ERRORS 544 #undef DEBUG_GENERATE_ERRORS
545 #undef DEBUG_GENERATE_ABORTS 545 #undef DEBUG_GENERATE_ABORTS
546 #undef DEBUG_GEOMETRY 546 #undef DEBUG_GEOMETRY
547 547
548 #define MAX_ISA 4 548 #define MAX_ISA 4
549 #define MAX_VESA 0 549 #define MAX_VESA 0
550 #define MAX_EISA 15 550 #define MAX_EISA 15
551 #define MAX_PCI 16 551 #define MAX_PCI 16
552 #define MAX_BOARDS (MAX_ISA + MAX_VESA + MAX_E 552 #define MAX_BOARDS (MAX_ISA + MAX_VESA + MAX_EISA + MAX_PCI)
553 #define MAX_CHANNEL 4 553 #define MAX_CHANNEL 4
554 #define MAX_LUN 32 554 #define MAX_LUN 32
555 #define MAX_TARGET 32 555 #define MAX_TARGET 32
556 #define MAX_MAILBOXES 64 556 #define MAX_MAILBOXES 64
557 #define MAX_SGLIST 64 557 #define MAX_SGLIST 64
558 #define MAX_LARGE_SGLIST 122 558 #define MAX_LARGE_SGLIST 122
559 #define MAX_INTERNAL_RETRIES 64 559 #define MAX_INTERNAL_RETRIES 64
560 #define MAX_CMD_PER_LUN 2 560 #define MAX_CMD_PER_LUN 2
561 #define MAX_TAGGED_CMD_PER_LUN (MAX_MAILBOXES 561 #define MAX_TAGGED_CMD_PER_LUN (MAX_MAILBOXES - MAX_CMD_PER_LUN)
562 562
563 #define SKIP ULONG_MAX 563 #define SKIP ULONG_MAX
564 #define FREE 0 564 #define FREE 0
565 #define IN_USE 1 565 #define IN_USE 1
566 #define LOCKED 2 566 #define LOCKED 2
567 #define IN_RESET 3 567 #define IN_RESET 3
568 #define IGNORE 4 568 #define IGNORE 4
569 #define READY 5 569 #define READY 5
570 #define ABORTING 6 570 #define ABORTING 6
571 #define NO_DMA 0xff 571 #define NO_DMA 0xff
572 #define MAXLOOP 10000 572 #define MAXLOOP 10000
573 #define TAG_DISABLED 0 573 #define TAG_DISABLED 0
574 #define TAG_SIMPLE 1 574 #define TAG_SIMPLE 1
575 #define TAG_ORDERED 2 575 #define TAG_ORDERED 2
576 576
577 #define REG_CMD 7 577 #define REG_CMD 7
578 #define REG_STATUS 7 578 #define REG_STATUS 7
579 #define REG_AUX_STATUS 8 579 #define REG_AUX_STATUS 8
580 #define REG_DATA 0 580 #define REG_DATA 0
581 #define REG_DATA2 1 581 #define REG_DATA2 1
582 #define REG_SEE 6 582 #define REG_SEE 6
583 #define REG_LOW 2 583 #define REG_LOW 2
584 #define REG_LM 3 584 #define REG_LM 3
585 #define REG_MID 4 585 #define REG_MID 4
586 #define REG_MSB 5 586 #define REG_MSB 5
587 #define REGION_SIZE 9UL 587 #define REGION_SIZE 9UL
588 #define MAX_ISA_ADDR 0x03ff 588 #define MAX_ISA_ADDR 0x03ff
589 #define MIN_EISA_ADDR 0x1c88 589 #define MIN_EISA_ADDR 0x1c88
590 #define MAX_EISA_ADDR 0xfc88 590 #define MAX_EISA_ADDR 0xfc88
591 #define BSY_ASSERTED 0x80 591 #define BSY_ASSERTED 0x80
592 #define DRQ_ASSERTED 0x08 592 #define DRQ_ASSERTED 0x08
593 #define ABSY_ASSERTED 0x01 593 #define ABSY_ASSERTED 0x01
594 #define IRQ_ASSERTED 0x02 594 #define IRQ_ASSERTED 0x02
595 #define READ_CONFIG_PIO 0xf0 595 #define READ_CONFIG_PIO 0xf0
596 #define SET_CONFIG_PIO 0xf1 596 #define SET_CONFIG_PIO 0xf1
597 #define SEND_CP_PIO 0xf2 597 #define SEND_CP_PIO 0xf2
598 #define RECEIVE_SP_PIO 0xf3 598 #define RECEIVE_SP_PIO 0xf3
599 #define TRUNCATE_XFR_PIO 0xf4 599 #define TRUNCATE_XFR_PIO 0xf4
600 #define RESET_PIO 0xf9 600 #define RESET_PIO 0xf9
601 #define READ_CONFIG_DMA 0xfd 601 #define READ_CONFIG_DMA 0xfd
602 #define SET_CONFIG_DMA 0xfe 602 #define SET_CONFIG_DMA 0xfe
603 #define SEND_CP_DMA 0xff 603 #define SEND_CP_DMA 0xff
604 #define ASOK 0x00 604 #define ASOK 0x00
605 #define ASST 0x01 605 #define ASST 0x01
606 606
607 #define YESNO(a) ((a) ? 'y' : 'n') 607 #define YESNO(a) ((a) ? 'y' : 'n')
608 #define TLDEV(type) ((type) == TYPE_DISK || (t 608 #define TLDEV(type) ((type) == TYPE_DISK || (type) == TYPE_ROM)
609 609
610 /* "EATA", in Big Endian format */ 610 /* "EATA", in Big Endian format */
611 #define EATA_SIG_BE 0x45415441 611 #define EATA_SIG_BE 0x45415441
612 612
613 /* Number of valid bytes in the board config s 613 /* Number of valid bytes in the board config structure for EATA 2.0x */
614 #define EATA_2_0A_SIZE 28 614 #define EATA_2_0A_SIZE 28
615 #define EATA_2_0B_SIZE 30 615 #define EATA_2_0B_SIZE 30
616 #define EATA_2_0C_SIZE 34 616 #define EATA_2_0C_SIZE 34
617 617
618 /* Board info structure */ 618 /* Board info structure */
619 struct eata_info { 619 struct eata_info {
620 u_int32_t data_len; /* Number of v 620 u_int32_t data_len; /* Number of valid bytes after this field */
621 u_int32_t sign; /* ASCII "EATA 621 u_int32_t sign; /* ASCII "EATA" signature */
622 622
623 #if defined(__BIG_ENDIAN_BITFIELD) 623 #if defined(__BIG_ENDIAN_BITFIELD)
624 unchar version : 4, 624 unchar version : 4,
625 : 4; 625 : 4;
626 unchar haaval : 1, 626 unchar haaval : 1,
627 ata : 1, 627 ata : 1,
628 drqvld : 1, 628 drqvld : 1,
629 dmasup : 1, 629 dmasup : 1,
630 morsup : 1, 630 morsup : 1,
631 trnxfr : 1, 631 trnxfr : 1,
632 tarsup : 1, 632 tarsup : 1,
633 ocsena : 1; 633 ocsena : 1;
634 #else 634 #else
635 unchar : 4, /* unused low 635 unchar : 4, /* unused low nibble */
636 version : 4; /* EATA versio 636 version : 4; /* EATA version, should be 0x1 */
637 unchar ocsena : 1, /* Overlap Com 637 unchar ocsena : 1, /* Overlap Command Support Enabled */
638 tarsup : 1, /* Target Mode 638 tarsup : 1, /* Target Mode Supported */
639 trnxfr : 1, /* Truncate Tr 639 trnxfr : 1, /* Truncate Transfer Cmd NOT Necessary */
640 morsup : 1, /* More Suppor 640 morsup : 1, /* More Supported */
641 dmasup : 1, /* DMA Support 641 dmasup : 1, /* DMA Supported */
642 drqvld : 1, /* DRQ Index ( 642 drqvld : 1, /* DRQ Index (DRQX) is valid */
643 ata : 1, /* This is an 643 ata : 1, /* This is an ATA device */
644 haaval : 1; /* Host Adapte 644 haaval : 1; /* Host Adapter Address Valid */
645 #endif 645 #endif
646 646
647 ushort cp_pad_len; /* Number of p 647 ushort cp_pad_len; /* Number of pad bytes after cp_len */
648 unchar host_addr[4]; /* Host Adapte 648 unchar host_addr[4]; /* Host Adapter SCSI ID for channels 3, 2, 1, 0 */
649 u_int32_t cp_len; /* Number of v 649 u_int32_t cp_len; /* Number of valid bytes in cp */
650 u_int32_t sp_len; /* Number of v 650 u_int32_t sp_len; /* Number of valid bytes in sp */
651 ushort queue_size; /* Max number 651 ushort queue_size; /* Max number of cp that can be queued */
652 ushort unused; 652 ushort unused;
653 ushort scatt_size; /* Max number 653 ushort scatt_size; /* Max number of entries in scatter/gather table */
654 654
655 #if defined(__BIG_ENDIAN_BITFIELD) 655 #if defined(__BIG_ENDIAN_BITFIELD)
656 unchar drqx : 2, 656 unchar drqx : 2,
657 second : 1, 657 second : 1,
658 irq_tr : 1, 658 irq_tr : 1,
659 irq : 4; 659 irq : 4;
660 unchar sync; 660 unchar sync;
661 unchar : 4, 661 unchar : 4,
662 res1 : 1, 662 res1 : 1,
663 large_sg : 1, 663 large_sg : 1,
664 forcaddr : 1, 664 forcaddr : 1,
665 isaena : 1; 665 isaena : 1;
666 unchar max_chan : 3, 666 unchar max_chan : 3,
667 max_id : 5; 667 max_id : 5;
668 unchar max_lun; 668 unchar max_lun;
669 unchar eisa : 1, 669 unchar eisa : 1,
670 pci : 1, 670 pci : 1,
671 idquest : 1, 671 idquest : 1,
672 m1 : 1, 672 m1 : 1,
673 : 4; 673 : 4;
674 #else 674 #else
675 unchar irq : 4, /* Interrupt R 675 unchar irq : 4, /* Interrupt Request assigned to this controller */
676 irq_tr : 1, /* 0 for edge 676 irq_tr : 1, /* 0 for edge triggered, 1 for level triggered */
677 second : 1, /* 1 if this i 677 second : 1, /* 1 if this is a secondary (not primary) controller */
678 drqx : 2; /* DRQ Index ( 678 drqx : 2; /* DRQ Index (0=DMA0, 1=DMA7, 2=DMA6, 3=DMA5) */
679 unchar sync; /* 1 if scsi t 679 unchar sync; /* 1 if scsi target id 7...0 is running sync scsi */
680 680
681 /* Structure extension defined in EATA 681 /* Structure extension defined in EATA 2.0B */
682 unchar isaena : 1, /* ISA i/o add 682 unchar isaena : 1, /* ISA i/o addressing is disabled/enabled */
683 forcaddr : 1, /* Port addres 683 forcaddr : 1, /* Port address has been forced */
684 large_sg : 1, /* 1 if large 684 large_sg : 1, /* 1 if large SG lists are supported */
685 res1 : 1, 685 res1 : 1,
686 : 4; 686 : 4;
687 unchar max_id : 5, /* Max SCSI ta 687 unchar max_id : 5, /* Max SCSI target ID number */
688 max_chan : 3; /* Max SCSI ch 688 max_chan : 3; /* Max SCSI channel number on this board */
689 689
690 /* Structure extension defined in EATA 690 /* Structure extension defined in EATA 2.0C */
691 unchar max_lun; /* Max SCSI LU 691 unchar max_lun; /* Max SCSI LUN number */
692 unchar 692 unchar
693 : 4, 693 : 4,
694 m1 : 1, /* This is a P 694 m1 : 1, /* This is a PCI with an M1 chip installed */
695 idquest : 1, /* RAIDNUM ret 695 idquest : 1, /* RAIDNUM returned is questionable */
696 pci : 1, /* This board 696 pci : 1, /* This board is PCI */
697 eisa : 1; /* This board 697 eisa : 1; /* This board is EISA */
698 #endif 698 #endif
699 699
700 unchar raidnum; /* Uniquely id 700 unchar raidnum; /* Uniquely identifies this HBA in a system */
701 unchar notused; 701 unchar notused;
702 702
703 ushort ipad[247]; 703 ushort ipad[247];
704 }; 704 };
705 705
706 /* Board config structure */ 706 /* Board config structure */
707 struct eata_config { 707 struct eata_config {
708 ushort len; /* Number of b 708 ushort len; /* Number of bytes following this field */
709 709
710 #if defined(__BIG_ENDIAN_BITFIELD) 710 #if defined(__BIG_ENDIAN_BITFIELD)
711 unchar : 4, 711 unchar : 4,
712 tarena : 1, 712 tarena : 1,
713 mdpena : 1, 713 mdpena : 1,
714 ocena : 1, 714 ocena : 1,
715 edis : 1; 715 edis : 1;
716 #else 716 #else
717 unchar edis : 1, /* Disable EAT 717 unchar edis : 1, /* Disable EATA interface after config command */
718 ocena : 1, /* Overlapped 718 ocena : 1, /* Overlapped Commands Enabled */
719 mdpena : 1, /* Transfer al 719 mdpena : 1, /* Transfer all Modified Data Pointer Messages */
720 tarena : 1, /* Target Mode 720 tarena : 1, /* Target Mode Enabled for this controller */
721 : 4; 721 : 4;
722 #endif 722 #endif
723 unchar cpad[511]; 723 unchar cpad[511];
724 }; 724 };
725 725
726 /* Returned status packet structure */ 726 /* Returned status packet structure */
727 struct mssp { 727 struct mssp {
728 #if defined(__BIG_ENDIAN_BITFIELD) 728 #if defined(__BIG_ENDIAN_BITFIELD)
729 unchar eoc : 1, 729 unchar eoc : 1,
730 adapter_status : 7; 730 adapter_status : 7;
731 #else 731 #else
732 unchar adapter_status : 7, /* Sta 732 unchar adapter_status : 7, /* State related to current command */
733 eoc : 1; /* End 733 eoc : 1; /* End Of Command (1 = command completed) */
734 #endif 734 #endif
735 unchar target_status; /* SCSI status 735 unchar target_status; /* SCSI status received after data transfer */
736 unchar unused[2]; 736 unchar unused[2];
737 u_int32_t inv_res_len; /* Number of b 737 u_int32_t inv_res_len; /* Number of bytes not transferred */
738 u_int32_t cpp_index; /* Index of ad 738 u_int32_t cpp_index; /* Index of address set in cp */
739 char mess[12]; 739 char mess[12];
740 }; 740 };
741 741
742 struct sg_list { 742 struct sg_list {
743 unsigned int address; /* Segment Add 743 unsigned int address; /* Segment Address */
744 unsigned int num_bytes; /* Segment Len 744 unsigned int num_bytes; /* Segment Length */
745 }; 745 };
746 746
747 /* MailBox SCSI Command Packet */ 747 /* MailBox SCSI Command Packet */
748 struct mscp { 748 struct mscp {
749 #if defined(__BIG_ENDIAN_BITFIELD) 749 #if defined(__BIG_ENDIAN_BITFIELD)
750 unchar din : 1, 750 unchar din : 1,
751 dout : 1, 751 dout : 1,
752 interp : 1, 752 interp : 1,
753 : 1, 753 : 1,
754 sg : 1, 754 sg : 1,
755 reqsen :1, 755 reqsen :1,
756 init : 1, 756 init : 1,
757 sreset : 1; 757 sreset : 1;
758 unchar sense_len; 758 unchar sense_len;
759 unchar unused[3]; 759 unchar unused[3];
760 unchar : 7, 760 unchar : 7,
761 fwnest : 1; 761 fwnest : 1;
762 unchar : 5, 762 unchar : 5,
763 hbaci : 1, 763 hbaci : 1,
764 iat : 1, 764 iat : 1,
765 phsunit : 1; 765 phsunit : 1;
766 unchar channel : 3, 766 unchar channel : 3,
767 target : 5; 767 target : 5;
768 unchar one : 1, 768 unchar one : 1,
769 dispri : 1, 769 dispri : 1,
770 luntar : 1, 770 luntar : 1,
771 lun : 5; 771 lun : 5;
772 #else 772 #else
773 unchar sreset :1, /* SCSI Bus Re 773 unchar sreset :1, /* SCSI Bus Reset Signal should be asserted */
774 init :1, /* Re-initiali 774 init :1, /* Re-initialize controller and self test */
775 reqsen :1, /* Transfer Re 775 reqsen :1, /* Transfer Request Sense Data to addr using DMA */
776 sg :1, /* Use Scatter 776 sg :1, /* Use Scatter/Gather */
777 :1, 777 :1,
778 interp :1, /* The control 778 interp :1, /* The controller interprets cp, not the target */
779 dout :1, /* Direction o 779 dout :1, /* Direction of Transfer is Out (Host to Target) */
780 din :1; /* Direction o 780 din :1; /* Direction of Transfer is In (Target to Host) */
781 unchar sense_len; /* Request Sen 781 unchar sense_len; /* Request Sense Length */
782 unchar unused[3]; 782 unchar unused[3];
783 unchar fwnest : 1, /* Send comman 783 unchar fwnest : 1, /* Send command to a component of an Array Group */
784 : 7; 784 : 7;
785 unchar phsunit : 1, /* Send to Tar 785 unchar phsunit : 1, /* Send to Target Physical Unit (bypass RAID) */
786 iat : 1, /* Inhibit Add 786 iat : 1, /* Inhibit Address Translation */
787 hbaci : 1, /* Inhibit HBA 787 hbaci : 1, /* Inhibit HBA Caching for this command */
788 : 5; 788 : 5;
789 unchar target : 5, /* SCSI target 789 unchar target : 5, /* SCSI target ID */
790 channel : 3; /* SCSI channe 790 channel : 3; /* SCSI channel number */
791 unchar lun : 5, /* SCSI logica 791 unchar lun : 5, /* SCSI logical unit number */
792 luntar : 1, /* This cp is 792 luntar : 1, /* This cp is for Target (not LUN) */
793 dispri : 1, /* Disconnect 793 dispri : 1, /* Disconnect Privilege granted */
794 one : 1; /* 1 */ 794 one : 1; /* 1 */
795 #endif 795 #endif
796 796
797 unchar mess[3]; /* Massage to/ 797 unchar mess[3]; /* Massage to/from Target */
798 unchar cdb[12]; /* Command Des 798 unchar cdb[12]; /* Command Descriptor Block */
799 u_int32_t data_len; /* If sg=0 Dat 799 u_int32_t data_len; /* If sg=0 Data Length, if sg=1 sglist length */
800 u_int32_t cpp_index; /* Index of ad 800 u_int32_t cpp_index; /* Index of address to be returned in sp */
801 u_int32_t data_address; /* If sg=0 Dat 801 u_int32_t data_address; /* If sg=0 Data Address, if sg=1 sglist address */
802 u_int32_t sp_dma_addr; /* Address whe 802 u_int32_t sp_dma_addr; /* Address where sp is DMA'ed when cp completes */
803 u_int32_t sense_addr; /* Address whe 803 u_int32_t sense_addr; /* Address where Sense Data is DMA'ed on error */
804 804
805 /* Additional fields begin here. */ 805 /* Additional fields begin here. */
806 struct scsi_cmnd *SCpnt; 806 struct scsi_cmnd *SCpnt;
807 807
808 /* All the cp structure is zero filled 808 /* All the cp structure is zero filled by queuecommand except the
809 following CP_TAIL_SIZE bytes, initi 809 following CP_TAIL_SIZE bytes, initialized by detect */
810 dma_addr_t cp_dma_addr; /* dma handle 810 dma_addr_t cp_dma_addr; /* dma handle for this cp structure */
811 struct sg_list *sglist; /* pointer to 811 struct sg_list *sglist; /* pointer to the allocated SG list */
812 }; 812 };
813 813
814 #define CP_TAIL_SIZE (sizeof(struct sglist *) 814 #define CP_TAIL_SIZE (sizeof(struct sglist *) + sizeof(dma_addr_t))
815 815
816 struct hostdata { 816 struct hostdata {
817 struct mscp cp[MAX_MAILBOXES]; /* Mai 817 struct mscp cp[MAX_MAILBOXES]; /* Mailboxes for this board */
818 unsigned int cp_stat[MAX_MAILBOXES]; 818 unsigned int cp_stat[MAX_MAILBOXES]; /* FREE, IN_USE, LOCKED, IN_RESET */
819 unsigned int last_cp_used; /* Ind 819 unsigned int last_cp_used; /* Index of last mailbox used */
820 unsigned int iocount; /* Total i/o d 820 unsigned int iocount; /* Total i/o done for this board */
821 int board_number; /* Number of t 821 int board_number; /* Number of this board */
822 char board_name[16]; /* Name of thi 822 char board_name[16]; /* Name of this board */
823 int in_reset; /* True if boa 823 int in_reset; /* True if board is doing a reset */
824 int target_to[MAX_TARGET][MAX_CHANNEL] 824 int target_to[MAX_TARGET][MAX_CHANNEL]; /* N. of timeout errors on target */
825 int target_redo[MAX_TARGET][MAX_CHANNE 825 int target_redo[MAX_TARGET][MAX_CHANNEL]; /* If 1 redo i/o on target */
826 unsigned int retries; /* Number of i 826 unsigned int retries; /* Number of internal retries */
827 unsigned long last_retried_pid; /* Pid 827 unsigned long last_retried_pid; /* Pid of last retried command */
828 unsigned char subversion; /* Bus 828 unsigned char subversion; /* Bus type, either ISA or EISA/PCI */
829 unsigned char protocol_rev; /* EAT 829 unsigned char protocol_rev; /* EATA 2.0 rev., 'A' or 'B' or 'C' */
830 unsigned char is_pci; /* 1 is bus ty 830 unsigned char is_pci; /* 1 is bus type is PCI */
831 struct pci_dev *pdev; /* pdev for PC 831 struct pci_dev *pdev; /* pdev for PCI bus, NULL otherwise */
832 struct mssp *sp_cpu_addr; /* cpu 832 struct mssp *sp_cpu_addr; /* cpu addr for DMA buffer sp */
833 dma_addr_t sp_dma_addr; /* dma handle 833 dma_addr_t sp_dma_addr; /* dma handle for DMA buffer sp */
834 struct mssp sp; /* Local copy 834 struct mssp sp; /* Local copy of sp buffer */
835 }; 835 };
836 836
837 static struct Scsi_Host *sh[MAX_BOARDS]; 837 static struct Scsi_Host *sh[MAX_BOARDS];
838 static const char *driver_name = "EATA"; 838 static const char *driver_name = "EATA";
839 static char sha[MAX_BOARDS]; 839 static char sha[MAX_BOARDS];
840 static DEFINE_SPINLOCK(driver_lock); 840 static DEFINE_SPINLOCK(driver_lock);
841 841
842 /* Initialize num_boards so that ihdlr can wor 842 /* Initialize num_boards so that ihdlr can work while detect is in progress */
843 static unsigned int num_boards = MAX_BOARDS; 843 static unsigned int num_boards = MAX_BOARDS;
844 844
845 static unsigned long io_port[] = { 845 static unsigned long io_port[] = {
846 846
847 /* Space for MAX_INT_PARAM ports usabl 847 /* Space for MAX_INT_PARAM ports usable while loading as a module */
848 SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SK 848 SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP,
849 SKIP, SKIP, 849 SKIP, SKIP,
850 850
851 /* First ISA */ 851 /* First ISA */
852 0x1f0, 852 0x1f0,
853 853
854 /* Space for MAX_PCI ports possibly re 854 /* Space for MAX_PCI ports possibly reported by PCI_BIOS */
855 SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SK 855 SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP,
856 SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SK 856 SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP,
857 857
858 /* MAX_EISA ports */ 858 /* MAX_EISA ports */
859 0x1c88, 0x2c88, 0x3c88, 0x4c88, 0x5c88 859 0x1c88, 0x2c88, 0x3c88, 0x4c88, 0x5c88, 0x6c88, 0x7c88, 0x8c88,
860 0x9c88, 0xac88, 0xbc88, 0xcc88, 0xdc88 860 0x9c88, 0xac88, 0xbc88, 0xcc88, 0xdc88, 0xec88, 0xfc88,
861 861
862 /* Other (MAX_ISA - 1) ports */ 862 /* Other (MAX_ISA - 1) ports */
863 0x170, 0x230, 0x330, 863 0x170, 0x230, 0x330,
864 864
865 /* End of list */ 865 /* End of list */
866 0x0 866 0x0
867 }; 867 };
868 868
869 /* Device is Big Endian */ 869 /* Device is Big Endian */
870 #define H2DEV(x) cpu_to_be32(x) 870 #define H2DEV(x) cpu_to_be32(x)
871 #define DEV2H(x) be32_to_cpu(x) 871 #define DEV2H(x) be32_to_cpu(x)
872 #define H2DEV16(x) cpu_to_be16(x) 872 #define H2DEV16(x) cpu_to_be16(x)
873 #define DEV2H16(x) be16_to_cpu(x) 873 #define DEV2H16(x) be16_to_cpu(x)
874 874
875 /* But transfer orientation from the 16 bit da 875 /* But transfer orientation from the 16 bit data register is Little Endian */
876 #define REG2H(x) le16_to_cpu(x) 876 #define REG2H(x) le16_to_cpu(x)
877 877
878 static irqreturn_t do_interrupt_handler(int, v 878 static irqreturn_t do_interrupt_handler(int, void *);
879 static void flush_dev(struct scsi_device *, un 879 static void flush_dev(struct scsi_device *, unsigned long, struct hostdata *,
880 unsigned int); 880 unsigned int);
881 static int do_trace = 0; 881 static int do_trace = 0;
882 static int setup_done = 0; 882 static int setup_done = 0;
883 static int link_statistics; 883 static int link_statistics;
884 static int ext_tran = 0; 884 static int ext_tran = 0;
885 static int rev_scan = 1; 885 static int rev_scan = 1;
886 886
887 #if defined(CONFIG_SCSI_EATA_TAGGED_QUEUE) 887 #if defined(CONFIG_SCSI_EATA_TAGGED_QUEUE)
888 static int tag_mode = TAG_SIMPLE; 888 static int tag_mode = TAG_SIMPLE;
889 #else 889 #else
890 static int tag_mode = TAG_DISABLED; 890 static int tag_mode = TAG_DISABLED;
891 #endif 891 #endif
892 892
893 #if defined(CONFIG_SCSI_EATA_LINKED_COMMANDS) 893 #if defined(CONFIG_SCSI_EATA_LINKED_COMMANDS)
894 static int linked_comm = 1; 894 static int linked_comm = 1;
895 #else 895 #else
896 static int linked_comm = 0; 896 static int linked_comm = 0;
897 #endif 897 #endif
898 898
899 #if defined(CONFIG_SCSI_EATA_MAX_TAGS) 899 #if defined(CONFIG_SCSI_EATA_MAX_TAGS)
900 static int max_queue_depth = CONFIG_SCSI_EATA_ 900 static int max_queue_depth = CONFIG_SCSI_EATA_MAX_TAGS;
901 #else 901 #else
902 static int max_queue_depth = MAX_CMD_PER_LUN; 902 static int max_queue_depth = MAX_CMD_PER_LUN;
903 #endif 903 #endif
904 904
905 #if defined(CONFIG_ISA) 905 #if defined(CONFIG_ISA)
906 static int isa_probe = 1; 906 static int isa_probe = 1;
907 #else 907 #else
908 static int isa_probe = 0; 908 static int isa_probe = 0;
909 #endif 909 #endif
910 910
911 #if defined(CONFIG_EISA) 911 #if defined(CONFIG_EISA)
912 static int eisa_probe = 1; 912 static int eisa_probe = 1;
913 #else 913 #else
914 static int eisa_probe = 0; 914 static int eisa_probe = 0;
915 #endif 915 #endif
916 916
917 #if defined(CONFIG_PCI) 917 #if defined(CONFIG_PCI)
918 static int pci_probe = 1; 918 static int pci_probe = 1;
919 #else 919 #else
920 static int pci_probe = 0; 920 static int pci_probe = 0;
921 #endif 921 #endif
922 922
923 #define MAX_INT_PARAM 10 923 #define MAX_INT_PARAM 10
924 #define MAX_BOOT_OPTIONS_SIZE 256 924 #define MAX_BOOT_OPTIONS_SIZE 256
925 static char boot_options[MAX_BOOT_OPTIONS_SIZE 925 static char boot_options[MAX_BOOT_OPTIONS_SIZE];
926 926
927 #if defined(MODULE) 927 #if defined(MODULE)
928 #include <linux/module.h> 928 #include <linux/module.h>
929 #include <linux/moduleparam.h> 929 #include <linux/moduleparam.h>
930 930
931 module_param_string(eata, boot_options, MAX_BO 931 module_param_string(eata, boot_options, MAX_BOOT_OPTIONS_SIZE, 0);
932 MODULE_PARM_DESC(eata, " equivalent to the \"e 932 MODULE_PARM_DESC(eata, " equivalent to the \"eata=...\" kernel boot option."
933 " Example: modprob 933 " Example: modprobe eata \"eata=0x7410,0x230,lc:y,tm:0,mq:4,ep:n\"");
934 MODULE_AUTHOR("Dario Ballabio"); 934 MODULE_AUTHOR("Dario Ballabio");
935 MODULE_LICENSE("GPL"); 935 MODULE_LICENSE("GPL");
936 MODULE_DESCRIPTION("EATA/DMA SCSI Driver"); 936 MODULE_DESCRIPTION("EATA/DMA SCSI Driver");
937 937
938 #endif 938 #endif
939 939
940 static int eata2x_slave_configure(struct scsi_ 940 static int eata2x_slave_configure(struct scsi_device *dev)
941 { 941 {
942 int tqd, utqd; 942 int tqd, utqd;
943 char *tag_suffix, *link_suffix; 943 char *tag_suffix, *link_suffix;
944 944
945 utqd = MAX_CMD_PER_LUN; 945 utqd = MAX_CMD_PER_LUN;
946 tqd = max_queue_depth; 946 tqd = max_queue_depth;
947 947
948 if (TLDEV(dev->type) && dev->tagged_su 948 if (TLDEV(dev->type) && dev->tagged_supported) {
949 if (tag_mode == TAG_SIMPLE) { 949 if (tag_mode == TAG_SIMPLE) {
950 scsi_adjust_queue_dept 950 scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, tqd);
951 tag_suffix = ", simple 951 tag_suffix = ", simple tags";
952 } else if (tag_mode == TAG_ORD 952 } else if (tag_mode == TAG_ORDERED) {
953 scsi_adjust_queue_dept 953 scsi_adjust_queue_depth(dev, MSG_ORDERED_TAG, tqd);
954 tag_suffix = ", ordere 954 tag_suffix = ", ordered tags";
955 } else { 955 } else {
956 scsi_adjust_queue_dept 956 scsi_adjust_queue_depth(dev, 0, tqd);
957 tag_suffix = ", no tag 957 tag_suffix = ", no tags";
958 } 958 }
959 } else if (TLDEV(dev->type) && linked_ 959 } else if (TLDEV(dev->type) && linked_comm) {
960 scsi_adjust_queue_depth(dev, 0 960 scsi_adjust_queue_depth(dev, 0, tqd);
961 tag_suffix = ", untagged"; 961 tag_suffix = ", untagged";
962 } else { 962 } else {
963 scsi_adjust_queue_depth(dev, 0 963 scsi_adjust_queue_depth(dev, 0, utqd);
964 tag_suffix = ""; 964 tag_suffix = "";
965 } 965 }
966 966
967 if (TLDEV(dev->type) && linked_comm && 967 if (TLDEV(dev->type) && linked_comm && dev->queue_depth > 2)
968 link_suffix = ", sorted"; 968 link_suffix = ", sorted";
969 else if (TLDEV(dev->type)) 969 else if (TLDEV(dev->type))
970 link_suffix = ", unsorted"; 970 link_suffix = ", unsorted";
971 else 971 else
972 link_suffix = ""; 972 link_suffix = "";
973 973
974 sdev_printk(KERN_INFO, dev, 974 sdev_printk(KERN_INFO, dev,
975 "cmds/lun %d%s%s.\n", 975 "cmds/lun %d%s%s.\n",
976 dev->queue_depth, link_suffix, 976 dev->queue_depth, link_suffix, tag_suffix);
977 977
978 return 0; 978 return 0;
979 } 979 }
980 980
981 static int wait_on_busy(unsigned long iobase, 981 static int wait_on_busy(unsigned long iobase, unsigned int loop)
982 { 982 {
983 while (inb(iobase + REG_AUX_STATUS) & 983 while (inb(iobase + REG_AUX_STATUS) & ABSY_ASSERTED) {
984 udelay(1L); 984 udelay(1L);
985 if (--loop == 0) 985 if (--loop == 0)
986 return 1; 986 return 1;
987 } 987 }
988 return 0; 988 return 0;
989 } 989 }
990 990
991 static int do_dma(unsigned long iobase, unsign 991 static int do_dma(unsigned long iobase, unsigned long addr, unchar cmd)
992 { 992 {
993 unsigned char *byaddr; 993 unsigned char *byaddr;
994 unsigned long devaddr; 994 unsigned long devaddr;
995 995
996 if (wait_on_busy(iobase, (addr ? MAXLO 996 if (wait_on_busy(iobase, (addr ? MAXLOOP * 100 : MAXLOOP)))
997 return 1; 997 return 1;
998 998
999 if (addr) { 999 if (addr) {
1000 devaddr = H2DEV(addr); 1000 devaddr = H2DEV(addr);
1001 byaddr = (unsigned char *)&de 1001 byaddr = (unsigned char *)&devaddr;
1002 outb(byaddr[3], iobase + REG_ 1002 outb(byaddr[3], iobase + REG_LOW);
1003 outb(byaddr[2], iobase + REG_ 1003 outb(byaddr[2], iobase + REG_LM);
1004 outb(byaddr[1], iobase + REG_ 1004 outb(byaddr[1], iobase + REG_MID);
1005 outb(byaddr[0], iobase + REG_ 1005 outb(byaddr[0], iobase + REG_MSB);
1006 } 1006 }
1007 1007
1008 outb(cmd, iobase + REG_CMD); 1008 outb(cmd, iobase + REG_CMD);
1009 return 0; 1009 return 0;
1010 } 1010 }
1011 1011
1012 static int read_pio(unsigned long iobase, ush 1012 static int read_pio(unsigned long iobase, ushort * start, ushort * end)
1013 { 1013 {
1014 unsigned int loop = MAXLOOP; 1014 unsigned int loop = MAXLOOP;
1015 ushort *p; 1015 ushort *p;
1016 1016
1017 for (p = start; p <= end; p++) { 1017 for (p = start; p <= end; p++) {
1018 while (!(inb(iobase + REG_STA 1018 while (!(inb(iobase + REG_STATUS) & DRQ_ASSERTED)) {
1019 udelay(1L); 1019 udelay(1L);
1020 if (--loop == 0) 1020 if (--loop == 0)
1021 return 1; 1021 return 1;
1022 } 1022 }
1023 loop = MAXLOOP; 1023 loop = MAXLOOP;
1024 *p = REG2H(inw(iobase)); 1024 *p = REG2H(inw(iobase));
1025 } 1025 }
1026 1026
1027 return 0; 1027 return 0;
1028 } 1028 }
1029 1029
1030 static struct pci_dev *get_pci_dev(unsigned l 1030 static struct pci_dev *get_pci_dev(unsigned long port_base)
1031 { 1031 {
1032 #if defined(CONFIG_PCI) 1032 #if defined(CONFIG_PCI)
1033 unsigned int addr; 1033 unsigned int addr;
1034 struct pci_dev *dev = NULL; 1034 struct pci_dev *dev = NULL;
1035 1035
1036 while ((dev = pci_get_class(PCI_CLASS 1036 while ((dev = pci_get_class(PCI_CLASS_STORAGE_SCSI << 8, dev))) {
1037 addr = pci_resource_start(dev 1037 addr = pci_resource_start(dev, 0);
1038 1038
1039 #if defined(DEBUG_PCI_DETECT) 1039 #if defined(DEBUG_PCI_DETECT)
1040 printk("%s: get_pci_dev, bus 1040 printk("%s: get_pci_dev, bus %d, devfn 0x%x, addr 0x%x.\n",
1041 driver_name, dev->bus- 1041 driver_name, dev->bus->number, dev->devfn, addr);
1042 #endif 1042 #endif
1043 1043
1044 /* we are in so much trouble 1044 /* we are in so much trouble for a pci hotplug system with this driver
1045 * anyway, so doing this at l 1045 * anyway, so doing this at least lets people unload the driver and not
1046 * cause memory problems, but 1046 * cause memory problems, but in general this is a bad thing to do (this
1047 * driver needs to be convert 1047 * driver needs to be converted to the proper PCI api someday... */
1048 pci_dev_put(dev); 1048 pci_dev_put(dev);
1049 if (addr + PCI_BASE_ADDRESS_0 1049 if (addr + PCI_BASE_ADDRESS_0 == port_base)
1050 return dev; 1050 return dev;
1051 } 1051 }
1052 #endif /* end CONFIG 1052 #endif /* end CONFIG_PCI */
1053 return NULL; 1053 return NULL;
1054 } 1054 }
1055 1055
1056 static void enable_pci_ports(void) 1056 static void enable_pci_ports(void)
1057 { 1057 {
1058 #if defined(CONFIG_PCI) 1058 #if defined(CONFIG_PCI)
1059 struct pci_dev *dev = NULL; 1059 struct pci_dev *dev = NULL;
1060 1060
1061 while ((dev = pci_get_class(PCI_CLASS 1061 while ((dev = pci_get_class(PCI_CLASS_STORAGE_SCSI << 8, dev))) {
1062 #if defined(DEBUG_PCI_DETECT) 1062 #if defined(DEBUG_PCI_DETECT)
1063 printk("%s: enable_pci_ports, 1063 printk("%s: enable_pci_ports, bus %d, devfn 0x%x.\n",
1064 driver_name, dev->bus- 1064 driver_name, dev->bus->number, dev->devfn);
1065 #endif 1065 #endif
1066 1066
1067 if (pci_enable_device(dev)) 1067 if (pci_enable_device(dev))
1068 printk 1068 printk
1069 ("%s: warning, pc 1069 ("%s: warning, pci_enable_device failed, bus %d devfn 0x%x.\n",
1070 driver_name, dev 1070 driver_name, dev->bus->number, dev->devfn);
1071 } 1071 }
1072 1072
1073 #endif /* end CONFIG 1073 #endif /* end CONFIG_PCI */
1074 } 1074 }
1075 1075
1076 static int port_detect(unsigned long port_bas 1076 static int port_detect(unsigned long port_base, unsigned int j,
1077 struct scsi_host_template *tp 1077 struct scsi_host_template *tpnt)
1078 { 1078 {
1079 unsigned char irq, dma_channel, subve 1079 unsigned char irq, dma_channel, subversion, i, is_pci = 0;
1080 unsigned char protocol_rev; 1080 unsigned char protocol_rev;
1081 struct eata_info info; 1081 struct eata_info info;
1082 char *bus_type, dma_name[16]; 1082 char *bus_type, dma_name[16];
1083 struct pci_dev *pdev; 1083 struct pci_dev *pdev;
1084 /* Allowed DMA channels for ISA (0 in 1084 /* Allowed DMA channels for ISA (0 indicates reserved) */
1085 unsigned char dma_channel_table[4] = 1085 unsigned char dma_channel_table[4] = { 5, 6, 7, 0 };
1086 struct Scsi_Host *shost; 1086 struct Scsi_Host *shost;
1087 struct hostdata *ha; 1087 struct hostdata *ha;
1088 char name[16]; 1088 char name[16];
1089 1089
1090 sprintf(name, "%s%d", driver_name, j) 1090 sprintf(name, "%s%d", driver_name, j);
1091 1091
1092 if (!request_region(port_base, REGION 1092 if (!request_region(port_base, REGION_SIZE, driver_name)) {
1093 #if defined(DEBUG_DETECT) 1093 #if defined(DEBUG_DETECT)
1094 printk("%s: address 0x%03lx i 1094 printk("%s: address 0x%03lx in use, skipping probe.\n", name,
1095 port_base); 1095 port_base);
1096 #endif 1096 #endif
1097 goto fail; 1097 goto fail;
1098 } 1098 }
1099 1099
1100 spin_lock_irq(&driver_lock); 1100 spin_lock_irq(&driver_lock);
1101 1101
1102 if (do_dma(port_base, 0, READ_CONFIG_ 1102 if (do_dma(port_base, 0, READ_CONFIG_PIO)) {
1103 #if defined(DEBUG_DETECT) 1103 #if defined(DEBUG_DETECT)
1104 printk("%s: detect, do_dma fa 1104 printk("%s: detect, do_dma failed at 0x%03lx.\n", name,
1105 port_base); 1105 port_base);
1106 #endif 1106 #endif
1107 goto freelock; 1107 goto freelock;
1108 } 1108 }
1109 1109
1110 /* Read the info structure */ 1110 /* Read the info structure */
1111 if (read_pio(port_base, (ushort *) & 1111 if (read_pio(port_base, (ushort *) & info, (ushort *) & info.ipad[0])) {
1112 #if defined(DEBUG_DETECT) 1112 #if defined(DEBUG_DETECT)
1113 printk("%s: detect, read_pio 1113 printk("%s: detect, read_pio failed at 0x%03lx.\n", name,
1114 port_base); 1114 port_base);
1115 #endif 1115 #endif
1116 goto freelock; 1116 goto freelock;
1117 } 1117 }
1118 1118
1119 info.data_len = DEV2H(info.data_len); 1119 info.data_len = DEV2H(info.data_len);
1120 info.sign = DEV2H(info.sign); 1120 info.sign = DEV2H(info.sign);
1121 info.cp_pad_len = DEV2H16(info.cp_pad 1121 info.cp_pad_len = DEV2H16(info.cp_pad_len);
1122 info.cp_len = DEV2H(info.cp_len); 1122 info.cp_len = DEV2H(info.cp_len);
1123 info.sp_len = DEV2H(info.sp_len); 1123 info.sp_len = DEV2H(info.sp_len);
1124 info.scatt_size = DEV2H16(info.scatt_ 1124 info.scatt_size = DEV2H16(info.scatt_size);
1125 info.queue_size = DEV2H16(info.queue_ 1125 info.queue_size = DEV2H16(info.queue_size);
1126 1126
1127 /* Check the controller "EATA" signat 1127 /* Check the controller "EATA" signature */
1128 if (info.sign != EATA_SIG_BE) { 1128 if (info.sign != EATA_SIG_BE) {
1129 #if defined(DEBUG_DETECT) 1129 #if defined(DEBUG_DETECT)
1130 printk("%s: signature 0x%04x 1130 printk("%s: signature 0x%04x discarded.\n", name, info.sign);
1131 #endif 1131 #endif
1132 goto freelock; 1132 goto freelock;
1133 } 1133 }
1134 1134
1135 if (info.data_len < EATA_2_0A_SIZE) { 1135 if (info.data_len < EATA_2_0A_SIZE) {
1136 printk 1136 printk
1137 ("%s: config structure si 1137 ("%s: config structure size (%d bytes) too short, detaching.\n",
1138 name, info.data_len); 1138 name, info.data_len);
1139 goto freelock; 1139 goto freelock;
1140 } else if (info.data_len == EATA_2_0A 1140 } else if (info.data_len == EATA_2_0A_SIZE)
1141 protocol_rev = 'A'; 1141 protocol_rev = 'A';
1142 else if (info.data_len == EATA_2_0B_S 1142 else if (info.data_len == EATA_2_0B_SIZE)
1143 protocol_rev = 'B'; 1143 protocol_rev = 'B';
1144 else 1144 else
1145 protocol_rev = 'C'; 1145 protocol_rev = 'C';
1146 1146
1147 if (protocol_rev != 'A' && info.forca 1147 if (protocol_rev != 'A' && info.forcaddr) {
1148 printk("%s: warning, port add 1148 printk("%s: warning, port address has been forced.\n", name);
1149 bus_type = "PCI"; 1149 bus_type = "PCI";
1150 is_pci = 1; 1150 is_pci = 1;
1151 subversion = ESA; 1151 subversion = ESA;
1152 } else if (port_base > MAX_EISA_ADDR 1152 } else if (port_base > MAX_EISA_ADDR
1153 || (protocol_rev == 'C' && 1153 || (protocol_rev == 'C' && info.pci)) {
1154 bus_type = "PCI"; 1154 bus_type = "PCI";
1155 is_pci = 1; 1155 is_pci = 1;
1156 subversion = ESA; 1156 subversion = ESA;
1157 } else if (port_base >= MIN_EISA_ADDR 1157 } else if (port_base >= MIN_EISA_ADDR
1158 || (protocol_rev == 'C' && 1158 || (protocol_rev == 'C' && info.eisa)) {
1159 bus_type = "EISA"; 1159 bus_type = "EISA";
1160 subversion = ESA; 1160 subversion = ESA;
1161 } else if (protocol_rev == 'C' && !in 1161 } else if (protocol_rev == 'C' && !info.eisa && !info.pci) {
1162 bus_type = "ISA"; 1162 bus_type = "ISA";
1163 subversion = ISA; 1163 subversion = ISA;
1164 } else if (port_base > MAX_ISA_ADDR) 1164 } else if (port_base > MAX_ISA_ADDR) {
1165 bus_type = "PCI"; 1165 bus_type = "PCI";
1166 is_pci = 1; 1166 is_pci = 1;
1167 subversion = ESA; 1167 subversion = ESA;
1168 } else { 1168 } else {
1169 bus_type = "ISA"; 1169 bus_type = "ISA";
1170 subversion = ISA; 1170 subversion = ISA;
1171 } 1171 }
1172 1172
1173 if (!info.haaval || info.ata) { 1173 if (!info.haaval || info.ata) {
1174 printk 1174 printk
1175 ("%s: address 0x%03lx, un 1175 ("%s: address 0x%03lx, unusable %s board (%d%d), detaching.\n",
1176 name, port_base, bus_typ 1176 name, port_base, bus_type, info.haaval, info.ata);
1177 goto freelock; 1177 goto freelock;
1178 } 1178 }
1179 1179
1180 if (info.drqvld) { 1180 if (info.drqvld) {
1181 if (subversion == ESA) 1181 if (subversion == ESA)
1182 printk("%s: warning, 1182 printk("%s: warning, weird %s board using DMA.\n", name,
1183 bus_type); 1183 bus_type);
1184 1184
1185 subversion = ISA; 1185 subversion = ISA;
1186 dma_channel = dma_channel_tab 1186 dma_channel = dma_channel_table[3 - info.drqx];
1187 } else { 1187 } else {
1188 if (subversion == ISA) 1188 if (subversion == ISA)
1189 printk("%s: warning, 1189 printk("%s: warning, weird %s board not using DMA.\n",
1190 name, bus_type 1190 name, bus_type);
1191 1191
1192 subversion = ESA; 1192 subversion = ESA;
1193 dma_channel = NO_DMA; 1193 dma_channel = NO_DMA;
1194 } 1194 }
1195 1195
1196 if (!info.dmasup) 1196 if (!info.dmasup)
1197 printk("%s: warning, DMA prot 1197 printk("%s: warning, DMA protocol support not asserted.\n",
1198 name); 1198 name);
1199 1199
1200 irq = info.irq; 1200 irq = info.irq;
1201 1201
1202 if (subversion == ESA && !info.irq_tr 1202 if (subversion == ESA && !info.irq_tr)
1203 printk 1203 printk
1204 ("%s: warning, LEVEL trig 1204 ("%s: warning, LEVEL triggering is suggested for IRQ %u.\n",
1205 name, irq); 1205 name, irq);
1206 1206
1207 if (is_pci) { 1207 if (is_pci) {
1208 pdev = get_pci_dev(port_base) 1208 pdev = get_pci_dev(port_base);
1209 if (!pdev) 1209 if (!pdev)
1210 printk 1210 printk
1211 ("%s: warning, fa 1211 ("%s: warning, failed to get pci_dev structure.\n",
1212 name); 1212 name);
1213 } else 1213 } else
1214 pdev = NULL; 1214 pdev = NULL;
1215 1215
1216 if (pdev && (irq != pdev->irq)) { 1216 if (pdev && (irq != pdev->irq)) {
1217 printk("%s: IRQ %u mapped to 1217 printk("%s: IRQ %u mapped to IO-APIC IRQ %u.\n", name, irq,
1218 pdev->irq); 1218 pdev->irq);
1219 irq = pdev->irq; 1219 irq = pdev->irq;
1220 } 1220 }
1221 1221
1222 /* Board detected, allocate its IRQ * 1222 /* Board detected, allocate its IRQ */
1223 if (request_irq(irq, do_interrupt_han 1223 if (request_irq(irq, do_interrupt_handler,
1224 IRQF_DISABLED | ((sub 1224 IRQF_DISABLED | ((subversion == ESA) ? IRQF_SHARED : 0),
1225 driver_name, (void *) 1225 driver_name, (void *)&sha[j])) {
1226 printk("%s: unable to allocat 1226 printk("%s: unable to allocate IRQ %u, detaching.\n", name,
1227 irq); 1227 irq);
1228 goto freelock; 1228 goto freelock;
1229 } 1229 }
1230 1230
1231 if (subversion == ISA && request_dma( 1231 if (subversion == ISA && request_dma(dma_channel, driver_name)) {
1232 printk("%s: unable to allocat 1232 printk("%s: unable to allocate DMA channel %u, detaching.\n",
1233 name, dma_channel); 1233 name, dma_channel);
1234 goto freeirq; 1234 goto freeirq;
1235 } 1235 }
1236 #if defined(FORCE_CONFIG) 1236 #if defined(FORCE_CONFIG)
1237 { 1237 {
1238 struct eata_config *cf; 1238 struct eata_config *cf;
1239 dma_addr_t cf_dma_addr; 1239 dma_addr_t cf_dma_addr;
1240 1240
1241 cf = pci_alloc_consistent(pde 1241 cf = pci_alloc_consistent(pdev, sizeof(struct eata_config),
1242 &cf 1242 &cf_dma_addr);
1243 1243
1244 if (!cf) { 1244 if (!cf) {
1245 printk 1245 printk
1246 ("%s: config, pci 1246 ("%s: config, pci_alloc_consistent failed, detaching.\n",
1247 name); 1247 name);
1248 goto freedma; 1248 goto freedma;
1249 } 1249 }
1250 1250
1251 /* Set board configuration */ 1251 /* Set board configuration */
1252 memset((char *)cf, 0, sizeof( 1252 memset((char *)cf, 0, sizeof(struct eata_config));
1253 cf->len = (ushort) H2DEV16((u 1253 cf->len = (ushort) H2DEV16((ushort) 510);
1254 cf->ocena = 1; 1254 cf->ocena = 1;
1255 1255
1256 if (do_dma(port_base, cf_dma_ 1256 if (do_dma(port_base, cf_dma_addr, SET_CONFIG_DMA)) {
1257 printk 1257 printk
1258 ("%s: busy timeou 1258 ("%s: busy timeout sending configuration, detaching.\n",
1259 name); 1259 name);
1260 pci_free_consistent(p 1260 pci_free_consistent(pdev, sizeof(struct eata_config),
1261 c 1261 cf, cf_dma_addr);
1262 goto freedma; 1262 goto freedma;
1263 } 1263 }
1264 1264
1265 } 1265 }
1266 #endif 1266 #endif
1267 1267
1268 spin_unlock_irq(&driver_lock); 1268 spin_unlock_irq(&driver_lock);
1269 sh[j] = shost = scsi_register(tpnt, s 1269 sh[j] = shost = scsi_register(tpnt, sizeof(struct hostdata));
1270 spin_lock_irq(&driver_lock); 1270 spin_lock_irq(&driver_lock);
1271 1271
1272 if (shost == NULL) { 1272 if (shost == NULL) {
1273 printk("%s: unable to registe 1273 printk("%s: unable to register host, detaching.\n", name);
1274 goto freedma; 1274 goto freedma;
1275 } 1275 }
1276 1276
1277 shost->io_port = port_base; 1277 shost->io_port = port_base;
1278 shost->unique_id = port_base; 1278 shost->unique_id = port_base;
1279 shost->n_io_port = REGION_SIZE; 1279 shost->n_io_port = REGION_SIZE;
1280 shost->dma_channel = dma_channel; 1280 shost->dma_channel = dma_channel;
1281 shost->irq = irq; 1281 shost->irq = irq;
1282 shost->sg_tablesize = (ushort) info.s 1282 shost->sg_tablesize = (ushort) info.scatt_size;
1283 shost->this_id = (ushort) info.host_a 1283 shost->this_id = (ushort) info.host_addr[3];
1284 shost->can_queue = (ushort) info.queu 1284 shost->can_queue = (ushort) info.queue_size;
1285 shost->cmd_per_lun = MAX_CMD_PER_LUN; 1285 shost->cmd_per_lun = MAX_CMD_PER_LUN;
1286 1286
1287 ha = (struct hostdata *)shost->hostda 1287 ha = (struct hostdata *)shost->hostdata;
1288 1288
1289 memset(ha, 0, sizeof(struct hostdata) 1289 memset(ha, 0, sizeof(struct hostdata));
1290 ha->subversion = subversion; 1290 ha->subversion = subversion;
1291 ha->protocol_rev = protocol_rev; 1291 ha->protocol_rev = protocol_rev;
1292 ha->is_pci = is_pci; 1292 ha->is_pci = is_pci;
1293 ha->pdev = pdev; 1293 ha->pdev = pdev;
1294 ha->board_number = j; 1294 ha->board_number = j;
1295 1295
1296 if (ha->subversion == ESA) 1296 if (ha->subversion == ESA)
1297 shost->unchecked_isa_dma = 0; 1297 shost->unchecked_isa_dma = 0;
1298 else { 1298 else {
1299 unsigned long flags; 1299 unsigned long flags;
1300 shost->unchecked_isa_dma = 1; 1300 shost->unchecked_isa_dma = 1;
1301 1301
1302 flags = claim_dma_lock(); 1302 flags = claim_dma_lock();
1303 disable_dma(dma_channel); 1303 disable_dma(dma_channel);
1304 clear_dma_ff(dma_channel); 1304 clear_dma_ff(dma_channel);
1305 set_dma_mode(dma_channel, DMA 1305 set_dma_mode(dma_channel, DMA_MODE_CASCADE);
1306 enable_dma(dma_channel); 1306 enable_dma(dma_channel);
1307 release_dma_lock(flags); 1307 release_dma_lock(flags);
1308 1308
1309 } 1309 }
1310 1310
1311 strcpy(ha->board_name, name); 1311 strcpy(ha->board_name, name);
1312 1312
1313 /* DPT PM2012 does not allow to detec 1313 /* DPT PM2012 does not allow to detect sg_tablesize correctly */
1314 if (shost->sg_tablesize > MAX_SGLIST 1314 if (shost->sg_tablesize > MAX_SGLIST || shost->sg_tablesize < 2) {
1315 printk("%s: detect, wrong n. 1315 printk("%s: detect, wrong n. of SG lists %d, fixed.\n",
1316 ha->board_name, shost- 1316 ha->board_name, shost->sg_tablesize);
1317 shost->sg_tablesize = MAX_SGL 1317 shost->sg_tablesize = MAX_SGLIST;
1318 } 1318 }
1319 1319
1320 /* DPT PM2012 does not allow to detec 1320 /* DPT PM2012 does not allow to detect can_queue correctly */
1321 if (shost->can_queue > MAX_MAILBOXES 1321 if (shost->can_queue > MAX_MAILBOXES || shost->can_queue < 2) {
1322 printk("%s: detect, wrong n. 1322 printk("%s: detect, wrong n. of mbox %d, fixed.\n",
1323 ha->board_name, shost- 1323 ha->board_name, shost->can_queue);
1324 shost->can_queue = MAX_MAILBO 1324 shost->can_queue = MAX_MAILBOXES;
1325 } 1325 }
1326 1326
1327 if (protocol_rev != 'A') { 1327 if (protocol_rev != 'A') {
1328 if (info.max_chan > 0 && info 1328 if (info.max_chan > 0 && info.max_chan < MAX_CHANNEL)
1329 shost->max_channel = 1329 shost->max_channel = info.max_chan;
1330 1330
1331 if (info.max_id > 7 && info.m 1331 if (info.max_id > 7 && info.max_id < MAX_TARGET)
1332 shost->max_id = info. 1332 shost->max_id = info.max_id + 1;
1333 1333
1334 if (info.large_sg && shost->s 1334 if (info.large_sg && shost->sg_tablesize == MAX_SGLIST)
1335 shost->sg_tablesize = 1335 shost->sg_tablesize = MAX_LARGE_SGLIST;
1336 } 1336 }
1337 1337
1338 if (protocol_rev == 'C') { 1338 if (protocol_rev == 'C') {
1339 if (info.max_lun > 7 && info. 1339 if (info.max_lun > 7 && info.max_lun < MAX_LUN)
1340 shost->max_lun = info 1340 shost->max_lun = info.max_lun + 1;
1341 } 1341 }
1342 1342
1343 if (dma_channel == NO_DMA) 1343 if (dma_channel == NO_DMA)
1344 sprintf(dma_name, "%s", "BMST 1344 sprintf(dma_name, "%s", "BMST");
1345 else 1345 else
1346 sprintf(dma_name, "DMA %u", d 1346 sprintf(dma_name, "DMA %u", dma_channel);
1347 1347
1348 spin_unlock_irq(&driver_lock); 1348 spin_unlock_irq(&driver_lock);
1349 1349
1350 for (i = 0; i < shost->can_queue; i++ 1350 for (i = 0; i < shost->can_queue; i++)
1351 ha->cp[i].cp_dma_addr = pci_m 1351 ha->cp[i].cp_dma_addr = pci_map_single(ha->pdev,
1352 1352 &ha->cp[i],
1353 1353 sizeof(struct mscp),
1354 1354 PCI_DMA_BIDIRECTIONAL);
1355 1355
1356 for (i = 0; i < shost->can_queue; i++ 1356 for (i = 0; i < shost->can_queue; i++) {
1357 size_t sz = shost->sg_tablesi 1357 size_t sz = shost->sg_tablesize *sizeof(struct sg_list);
1358 gfp_t gfp_mask = (shost->unch 1358 gfp_t gfp_mask = (shost->unchecked_isa_dma ? GFP_DMA : 0) | GFP_ATOMIC;
1359 ha->cp[i].sglist = kmalloc(sz 1359 ha->cp[i].sglist = kmalloc(sz, gfp_mask);
1360 if (!ha->cp[i].sglist) { 1360 if (!ha->cp[i].sglist) {
1361 printk 1361 printk
1362 ("%s: kmalloc SGl 1362 ("%s: kmalloc SGlist failed, mbox %d, detaching.\n",
1363 ha->board_name, 1363 ha->board_name, i);
1364 goto release; 1364 goto release;
1365 } 1365 }
1366 } 1366 }
1367 1367
1368 if (!(ha->sp_cpu_addr = pci_alloc_con 1368 if (!(ha->sp_cpu_addr = pci_alloc_consistent(ha->pdev,
1369 1369 sizeof(struct mssp),
1370 1370 &ha->sp_dma_addr))) {
1371 printk("%s: pci_alloc_consist 1371 printk("%s: pci_alloc_consistent failed, detaching.\n", ha->board_name);
1372 goto release; 1372 goto release;
1373 } 1373 }
1374 1374
1375 if (max_queue_depth > MAX_TAGGED_CMD_ 1375 if (max_queue_depth > MAX_TAGGED_CMD_PER_LUN)
1376 max_queue_depth = MAX_TAGGED_ 1376 max_queue_depth = MAX_TAGGED_CMD_PER_LUN;
1377 1377
1378 if (max_queue_depth < MAX_CMD_PER_LUN 1378 if (max_queue_depth < MAX_CMD_PER_LUN)
1379 max_queue_depth = MAX_CMD_PER 1379 max_queue_depth = MAX_CMD_PER_LUN;
1380 1380
1381 if (tag_mode != TAG_DISABLED && tag_m 1381 if (tag_mode != TAG_DISABLED && tag_mode != TAG_SIMPLE)
1382 tag_mode = TAG_ORDERED; 1382 tag_mode = TAG_ORDERED;
1383 1383
1384 if (j == 0) { 1384 if (j == 0) {
1385 printk 1385 printk
1386 ("EATA/DMA 2.0x: Copyrigh 1386 ("EATA/DMA 2.0x: Copyright (C) 1994-2003 Dario Ballabio.\n");
1387 printk 1387 printk
1388 ("%s config options -> tm 1388 ("%s config options -> tm:%d, lc:%c, mq:%d, rs:%c, et:%c, "
1389 "ip:%c, ep:%c, pp:%c.\n" 1389 "ip:%c, ep:%c, pp:%c.\n", driver_name, tag_mode,
1390 YESNO(linked_comm), max_ 1390 YESNO(linked_comm), max_queue_depth, YESNO(rev_scan),
1391 YESNO(ext_tran), YESNO(i 1391 YESNO(ext_tran), YESNO(isa_probe), YESNO(eisa_probe),
1392 YESNO(pci_probe)); 1392 YESNO(pci_probe));
1393 } 1393 }
1394 1394
1395 printk("%s: 2.0%c, %s 0x%03lx, IRQ %u 1395 printk("%s: 2.0%c, %s 0x%03lx, IRQ %u, %s, SG %d, MB %d.\n",
1396 ha->board_name, ha->protocol_r 1396 ha->board_name, ha->protocol_rev, bus_type,
1397 (unsigned long)shost->io_port, 1397 (unsigned long)shost->io_port, shost->irq, dma_name,
1398 shost->sg_tablesize, shost->ca 1398 shost->sg_tablesize, shost->can_queue);
1399 1399
1400 if (shost->max_id > 8 || shost->max_l 1400 if (shost->max_id > 8 || shost->max_lun > 8)
1401 printk 1401 printk
1402 ("%s: wide SCSI support e 1402 ("%s: wide SCSI support enabled, max_id %u, max_lun %u.\n",
1403 ha->board_name, shost->m 1403 ha->board_name, shost->max_id, shost->max_lun);
1404 1404
1405 for (i = 0; i <= shost->max_channel; 1405 for (i = 0; i <= shost->max_channel; i++)
1406 printk("%s: SCSI channel %u e 1406 printk("%s: SCSI channel %u enabled, host target ID %d.\n",
1407 ha->board_name, i, inf 1407 ha->board_name, i, info.host_addr[3 - i]);
1408 1408
1409 #if defined(DEBUG_DETECT) 1409 #if defined(DEBUG_DETECT)
1410 printk("%s: Vers. 0x%x, ocs %u, tar % 1410 printk("%s: Vers. 0x%x, ocs %u, tar %u, trnxfr %u, more %u, SYNC 0x%x, "
1411 "sec. %u, infol %d, cpl %d spl 1411 "sec. %u, infol %d, cpl %d spl %d.\n", name, info.version,
1412 info.ocsena, info.tarsup, info 1412 info.ocsena, info.tarsup, info.trnxfr, info.morsup, info.sync,
1413 info.second, info.data_len, in 1413 info.second, info.data_len, info.cp_len, info.sp_len);
1414 1414
1415 if (protocol_rev == 'B' || protocol_r 1415 if (protocol_rev == 'B' || protocol_rev == 'C')
1416 printk("%s: isaena %u, forcad 1416 printk("%s: isaena %u, forcaddr %u, max_id %u, max_chan %u, "
1417 "large_sg %u, res1 %u. 1417 "large_sg %u, res1 %u.\n", name, info.isaena,
1418 info.forcaddr, info.ma 1418 info.forcaddr, info.max_id, info.max_chan, info.large_sg,
1419 info.res1); 1419 info.res1);
1420 1420
1421 if (protocol_rev == 'C') 1421 if (protocol_rev == 'C')
1422 printk("%s: max_lun %u, m1 %u 1422 printk("%s: max_lun %u, m1 %u, idquest %u, pci %u, eisa %u, "
1423 "raidnum %u.\n", name, 1423 "raidnum %u.\n", name, info.max_lun, info.m1,
1424 info.idquest, info.pci 1424 info.idquest, info.pci, info.eisa, info.raidnum);
1425 #endif 1425 #endif
1426 1426
1427 if (ha->pdev) { 1427 if (ha->pdev) {
1428 pci_set_master(ha->pdev); 1428 pci_set_master(ha->pdev);
1429 if (pci_set_dma_mask(ha->pdev !! 1429 if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK))
1430 printk("%s: warning, 1430 printk("%s: warning, pci_set_dma_mask failed.\n",
1431 ha->board_name 1431 ha->board_name);
1432 } 1432 }
1433 1433
1434 return 1; 1434 return 1;
1435 1435
1436 freedma: 1436 freedma:
1437 if (subversion == ISA) 1437 if (subversion == ISA)
1438 free_dma(dma_channel); 1438 free_dma(dma_channel);
1439 freeirq: 1439 freeirq:
1440 free_irq(irq, &sha[j]); 1440 free_irq(irq, &sha[j]);
1441 freelock: 1441 freelock:
1442 spin_unlock_irq(&driver_lock); 1442 spin_unlock_irq(&driver_lock);
1443 release_region(port_base, REGION_SIZE 1443 release_region(port_base, REGION_SIZE);
1444 fail: 1444 fail:
1445 return 0; 1445 return 0;
1446 1446
1447 release: 1447 release:
1448 eata2x_release(shost); 1448 eata2x_release(shost);
1449 return 0; 1449 return 0;
1450 } 1450 }
1451 1451
1452 static void internal_setup(char *str, int *in 1452 static void internal_setup(char *str, int *ints)
1453 { 1453 {
1454 int i, argc = ints[0]; 1454 int i, argc = ints[0];
1455 char *cur = str, *pc; 1455 char *cur = str, *pc;
1456 1456
1457 if (argc > 0) { 1457 if (argc > 0) {
1458 if (argc > MAX_INT_PARAM) 1458 if (argc > MAX_INT_PARAM)
1459 argc = MAX_INT_PARAM; 1459 argc = MAX_INT_PARAM;
1460 1460
1461 for (i = 0; i < argc; i++) 1461 for (i = 0; i < argc; i++)
1462 io_port[i] = ints[i + 1462 io_port[i] = ints[i + 1];
1463 1463
1464 io_port[i] = 0; 1464 io_port[i] = 0;
1465 setup_done = 1; 1465 setup_done = 1;
1466 } 1466 }
1467 1467
1468 while (cur && (pc = strchr(cur, ':')) 1468 while (cur && (pc = strchr(cur, ':'))) {
1469 int val = 0, c = *++pc; 1469 int val = 0, c = *++pc;
1470 1470
1471 if (c == 'n' || c == 'N') 1471 if (c == 'n' || c == 'N')
1472 val = 0; 1472 val = 0;
1473 else if (c == 'y' || c == 'Y' 1473 else if (c == 'y' || c == 'Y')
1474 val = 1; 1474 val = 1;
1475 else 1475 else
1476 val = (int)simple_str 1476 val = (int)simple_strtoul(pc, NULL, 0);
1477 1477
1478 if (!strncmp(cur, "lc:", 3)) 1478 if (!strncmp(cur, "lc:", 3))
1479 linked_comm = val; 1479 linked_comm = val;
1480 else if (!strncmp(cur, "tm:", 1480 else if (!strncmp(cur, "tm:", 3))
1481 tag_mode = val; 1481 tag_mode = val;
1482 else if (!strncmp(cur, "tc:", 1482 else if (!strncmp(cur, "tc:", 3))
1483 tag_mode = val; 1483 tag_mode = val;
1484 else if (!strncmp(cur, "mq:", 1484 else if (!strncmp(cur, "mq:", 3))
1485 max_queue_depth = val 1485 max_queue_depth = val;
1486 else if (!strncmp(cur, "ls:", 1486 else if (!strncmp(cur, "ls:", 3))
1487 link_statistics = val 1487 link_statistics = val;
1488 else if (!strncmp(cur, "et:", 1488 else if (!strncmp(cur, "et:", 3))
1489 ext_tran = val; 1489 ext_tran = val;
1490 else if (!strncmp(cur, "rs:", 1490 else if (!strncmp(cur, "rs:", 3))
1491 rev_scan = val; 1491 rev_scan = val;
1492 else if (!strncmp(cur, "ip:", 1492 else if (!strncmp(cur, "ip:", 3))
1493 isa_probe = val; 1493 isa_probe = val;
1494 else if (!strncmp(cur, "ep:", 1494 else if (!strncmp(cur, "ep:", 3))
1495 eisa_probe = val; 1495 eisa_probe = val;
1496 else if (!strncmp(cur, "pp:", 1496 else if (!strncmp(cur, "pp:", 3))
1497 pci_probe = val; 1497 pci_probe = val;
1498 1498
1499 if ((cur = strchr(cur, ','))) 1499 if ((cur = strchr(cur, ',')))
1500 ++cur; 1500 ++cur;
1501 } 1501 }
1502 1502
1503 return; 1503 return;
1504 } 1504 }
1505 1505
1506 static int option_setup(char *str) 1506 static int option_setup(char *str)
1507 { 1507 {
1508 int ints[MAX_INT_PARAM]; 1508 int ints[MAX_INT_PARAM];
1509 char *cur = str; 1509 char *cur = str;
1510 int i = 1; 1510 int i = 1;
1511 1511
1512 while (cur && isdigit(*cur) && i <= M 1512 while (cur && isdigit(*cur) && i <= MAX_INT_PARAM) {
1513 ints[i++] = simple_strtoul(cu 1513 ints[i++] = simple_strtoul(cur, NULL, 0);
1514 1514
1515 if ((cur = strchr(cur, ',')) 1515 if ((cur = strchr(cur, ',')) != NULL)
1516 cur++; 1516 cur++;
1517 } 1517 }
1518 1518
1519 ints[0] = i - 1; 1519 ints[0] = i - 1;
1520 internal_setup(cur, ints); 1520 internal_setup(cur, ints);
1521 return 1; 1521 return 1;
1522 } 1522 }
1523 1523
1524 static void add_pci_ports(void) 1524 static void add_pci_ports(void)
1525 { 1525 {
1526 #if defined(CONFIG_PCI) 1526 #if defined(CONFIG_PCI)
1527 unsigned int addr, k; 1527 unsigned int addr, k;
1528 struct pci_dev *dev = NULL; 1528 struct pci_dev *dev = NULL;
1529 1529
1530 for (k = 0; k < MAX_PCI; k++) { 1530 for (k = 0; k < MAX_PCI; k++) {
1531 1531
1532 if (!(dev = pci_get_class(PCI 1532 if (!(dev = pci_get_class(PCI_CLASS_STORAGE_SCSI << 8, dev)))
1533 break; 1533 break;
1534 1534
1535 if (pci_enable_device(dev)) { 1535 if (pci_enable_device(dev)) {
1536 #if defined(DEBUG_PCI_DETECT) 1536 #if defined(DEBUG_PCI_DETECT)
1537 printk 1537 printk
1538 ("%s: detect, bus 1538 ("%s: detect, bus %d, devfn 0x%x, pci_enable_device failed.\n",
1539 driver_name, dev 1539 driver_name, dev->bus->number, dev->devfn);
1540 #endif 1540 #endif
1541 1541
1542 continue; 1542 continue;
1543 } 1543 }
1544 1544
1545 addr = pci_resource_start(dev 1545 addr = pci_resource_start(dev, 0);
1546 1546
1547 #if defined(DEBUG_PCI_DETECT) 1547 #if defined(DEBUG_PCI_DETECT)
1548 printk("%s: detect, seq. %d, 1548 printk("%s: detect, seq. %d, bus %d, devfn 0x%x, addr 0x%x.\n",
1549 driver_name, k, dev->b 1549 driver_name, k, dev->bus->number, dev->devfn, addr);
1550 #endif 1550 #endif
1551 1551
1552 /* Order addresses according 1552 /* Order addresses according to rev_scan value */
1553 io_port[MAX_INT_PARAM + (rev_ 1553 io_port[MAX_INT_PARAM + (rev_scan ? (MAX_PCI - k) : (1 + k))] =
1554 addr + PCI_BASE_ADDRESS_0 1554 addr + PCI_BASE_ADDRESS_0;
1555 } 1555 }
1556 1556
1557 pci_dev_put(dev); 1557 pci_dev_put(dev);
1558 #endif /* end CONFIG 1558 #endif /* end CONFIG_PCI */
1559 } 1559 }
1560 1560
1561 static int eata2x_detect(struct scsi_host_tem 1561 static int eata2x_detect(struct scsi_host_template *tpnt)
1562 { 1562 {
1563 unsigned int j = 0, k; 1563 unsigned int j = 0, k;
1564 1564
1565 tpnt->proc_name = "eata2x"; 1565 tpnt->proc_name = "eata2x";
1566 1566
1567 if (strlen(boot_options)) 1567 if (strlen(boot_options))
1568 option_setup(boot_options); 1568 option_setup(boot_options);
1569 1569
1570 #if defined(MODULE) 1570 #if defined(MODULE)
1571 /* io_port could have been modified w 1571 /* io_port could have been modified when loading as a module */
1572 if (io_port[0] != SKIP) { 1572 if (io_port[0] != SKIP) {
1573 setup_done = 1; 1573 setup_done = 1;
1574 io_port[MAX_INT_PARAM] = 0; 1574 io_port[MAX_INT_PARAM] = 0;
1575 } 1575 }
1576 #endif 1576 #endif
1577 1577
1578 for (k = MAX_INT_PARAM; io_port[k]; k 1578 for (k = MAX_INT_PARAM; io_port[k]; k++)
1579 if (io_port[k] == SKIP) 1579 if (io_port[k] == SKIP)
1580 continue; 1580 continue;
1581 else if (io_port[k] <= MAX_IS 1581 else if (io_port[k] <= MAX_ISA_ADDR) {
1582 if (!isa_probe) 1582 if (!isa_probe)
1583 io_port[k] = 1583 io_port[k] = SKIP;
1584 } else if (io_port[k] >= MIN_ 1584 } else if (io_port[k] >= MIN_EISA_ADDR
1585 && io_port[k] <= M 1585 && io_port[k] <= MAX_EISA_ADDR) {
1586 if (!eisa_probe) 1586 if (!eisa_probe)
1587 io_port[k] = 1587 io_port[k] = SKIP;
1588 } 1588 }
1589 1589
1590 if (pci_probe) { 1590 if (pci_probe) {
1591 if (!setup_done) 1591 if (!setup_done)
1592 add_pci_ports(); 1592 add_pci_ports();
1593 else 1593 else
1594 enable_pci_ports(); 1594 enable_pci_ports();
1595 } 1595 }
1596 1596
1597 for (k = 0; io_port[k]; k++) { 1597 for (k = 0; io_port[k]; k++) {
1598 1598
1599 if (io_port[k] == SKIP) 1599 if (io_port[k] == SKIP)
1600 continue; 1600 continue;
1601 1601
1602 if (j < MAX_BOARDS && port_de 1602 if (j < MAX_BOARDS && port_detect(io_port[k], j, tpnt))
1603 j++; 1603 j++;
1604 } 1604 }
1605 1605
1606 num_boards = j; 1606 num_boards = j;
1607 return j; 1607 return j;
1608 } 1608 }
1609 1609
1610 static void map_dma(unsigned int i, struct ho 1610 static void map_dma(unsigned int i, struct hostdata *ha)
1611 { 1611 {
1612 unsigned int k, pci_dir; 1612 unsigned int k, pci_dir;
1613 int count; 1613 int count;
1614 struct scatterlist *sg; 1614 struct scatterlist *sg;
1615 struct mscp *cpp; 1615 struct mscp *cpp;
1616 struct scsi_cmnd *SCpnt; 1616 struct scsi_cmnd *SCpnt;
1617 1617
1618 cpp = &ha->cp[i]; 1618 cpp = &ha->cp[i];
1619 SCpnt = cpp->SCpnt; 1619 SCpnt = cpp->SCpnt;
1620 pci_dir = SCpnt->sc_data_direction; 1620 pci_dir = SCpnt->sc_data_direction;
1621 1621
1622 if (SCpnt->sense_buffer) 1622 if (SCpnt->sense_buffer)
1623 cpp->sense_addr = 1623 cpp->sense_addr =
1624 H2DEV(pci_map_single(ha-> 1624 H2DEV(pci_map_single(ha->pdev, SCpnt->sense_buffer,
1625 SCSI_SENSE_BUFFERS 1625 SCSI_SENSE_BUFFERSIZE, PCI_DMA_FROMDEVICE));
1626 1626
1627 cpp->sense_len = SCSI_SENSE_BUFFERSIZ 1627 cpp->sense_len = SCSI_SENSE_BUFFERSIZE;
1628 1628
1629 if (!scsi_sg_count(SCpnt)) { !! 1629 count = scsi_dma_map(SCpnt);
1630 cpp->data_len = 0; !! 1630 BUG_ON(count < 0);
1631 return; <<
1632 } <<
1633 <<
1634 count = pci_map_sg(ha->pdev, scsi_sgl <<
1635 pci_dir); <<
1636 BUG_ON(!count); <<
1637 <<
1638 scsi_for_each_sg(SCpnt, sg, count, k) 1631 scsi_for_each_sg(SCpnt, sg, count, k) {
1639 cpp->sglist[k].address = H2DE 1632 cpp->sglist[k].address = H2DEV(sg_dma_address(sg));
1640 cpp->sglist[k].num_bytes = H2 1633 cpp->sglist[k].num_bytes = H2DEV(sg_dma_len(sg));
1641 } 1634 }
1642 1635
1643 cpp->sg = 1; 1636 cpp->sg = 1;
1644 cpp->data_address = H2DEV(pci_map_sin 1637 cpp->data_address = H2DEV(pci_map_single(ha->pdev, cpp->sglist,
1645 1638 scsi_sg_count(SCpnt) *
1646 1639 sizeof(struct sg_list),
1647 1640 pci_dir));
1648 cpp->data_len = H2DEV((scsi_sg_count( 1641 cpp->data_len = H2DEV((scsi_sg_count(SCpnt) * sizeof(struct sg_list)));
1649 } 1642 }
1650 1643
1651 static void unmap_dma(unsigned int i, struct 1644 static void unmap_dma(unsigned int i, struct hostdata *ha)
1652 { 1645 {
1653 unsigned int pci_dir; 1646 unsigned int pci_dir;
1654 struct mscp *cpp; 1647 struct mscp *cpp;
1655 struct scsi_cmnd *SCpnt; 1648 struct scsi_cmnd *SCpnt;
1656 1649
1657 cpp = &ha->cp[i]; 1650 cpp = &ha->cp[i];
1658 SCpnt = cpp->SCpnt; 1651 SCpnt = cpp->SCpnt;
1659 pci_dir = SCpnt->sc_data_direction; 1652 pci_dir = SCpnt->sc_data_direction;
1660 1653
1661 if (DEV2H(cpp->sense_addr)) 1654 if (DEV2H(cpp->sense_addr))
1662 pci_unmap_single(ha->pdev, DE 1655 pci_unmap_single(ha->pdev, DEV2H(cpp->sense_addr),
1663 DEV2H(cpp->s 1656 DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE);
1664 1657
1665 if (scsi_sg_count(SCpnt)) !! 1658 scsi_dma_unmap(SCpnt);
1666 pci_unmap_sg(ha->pdev, scsi_s <<
1667 pci_dir); <<
1668 1659
1669 if (!DEV2H(cpp->data_len)) 1660 if (!DEV2H(cpp->data_len))
1670 pci_dir = PCI_DMA_BIDIRECTION 1661 pci_dir = PCI_DMA_BIDIRECTIONAL;
1671 1662
1672 if (DEV2H(cpp->data_address)) 1663 if (DEV2H(cpp->data_address))
1673 pci_unmap_single(ha->pdev, DE 1664 pci_unmap_single(ha->pdev, DEV2H(cpp->data_address),
1674 DEV2H(cpp->d 1665 DEV2H(cpp->data_len), pci_dir);
1675 } 1666 }
1676 1667
1677 static void sync_dma(unsigned int i, struct h 1668 static void sync_dma(unsigned int i, struct hostdata *ha)
1678 { 1669 {
1679 unsigned int pci_dir; 1670 unsigned int pci_dir;
1680 struct mscp *cpp; 1671 struct mscp *cpp;
1681 struct scsi_cmnd *SCpnt; 1672 struct scsi_cmnd *SCpnt;
1682 1673
1683 cpp = &ha->cp[i]; 1674 cpp = &ha->cp[i];
1684 SCpnt = cpp->SCpnt; 1675 SCpnt = cpp->SCpnt;
1685 pci_dir = SCpnt->sc_data_direction; 1676 pci_dir = SCpnt->sc_data_direction;
1686 1677
1687 if (DEV2H(cpp->sense_addr)) 1678 if (DEV2H(cpp->sense_addr))
1688 pci_dma_sync_single_for_cpu(h 1679 pci_dma_sync_single_for_cpu(ha->pdev, DEV2H(cpp->sense_addr),
1689 D 1680 DEV2H(cpp->sense_len),
1690 P 1681 PCI_DMA_FROMDEVICE);
1691 1682
1692 if (scsi_sg_count(SCpnt)) 1683 if (scsi_sg_count(SCpnt))
1693 pci_dma_sync_sg_for_cpu(ha->p 1684 pci_dma_sync_sg_for_cpu(ha->pdev, scsi_sglist(SCpnt),
1694 scsi_ 1685 scsi_sg_count(SCpnt), pci_dir);
1695 1686
1696 if (!DEV2H(cpp->data_len)) 1687 if (!DEV2H(cpp->data_len))
1697 pci_dir = PCI_DMA_BIDIRECTION 1688 pci_dir = PCI_DMA_BIDIRECTIONAL;
1698 1689
1699 if (DEV2H(cpp->data_address)) 1690 if (DEV2H(cpp->data_address))
1700 pci_dma_sync_single_for_cpu(h 1691 pci_dma_sync_single_for_cpu(ha->pdev,
1701 D 1692 DEV2H(cpp->data_address),
1702 D 1693 DEV2H(cpp->data_len), pci_dir);
1703 } 1694 }
1704 1695
1705 static void scsi_to_dev_dir(unsigned int i, s 1696 static void scsi_to_dev_dir(unsigned int i, struct hostdata *ha)
1706 { 1697 {
1707 unsigned int k; 1698 unsigned int k;
1708 1699
1709 static const unsigned char data_out_c 1700 static const unsigned char data_out_cmds[] = {
1710 0x0a, 0x2a, 0x15, 0x55, 0x04, 1701 0x0a, 0x2a, 0x15, 0x55, 0x04, 0x07, 0x18, 0x1d, 0x24, 0x2e,
1711 0x30, 0x31, 0x32, 0x38, 0x39, 1702 0x30, 0x31, 0x32, 0x38, 0x39, 0x3a, 0x3b, 0x3d, 0x3f, 0x40,
1712 0x41, 0x4c, 0xaa, 0xae, 0xb0, 1703 0x41, 0x4c, 0xaa, 0xae, 0xb0, 0xb1, 0xb2, 0xb6, 0xea, 0x1b, 0x5d
1713 }; 1704 };
1714 1705
1715 static const unsigned char data_none_ 1706 static const unsigned char data_none_cmds[] = {
1716 0x01, 0x0b, 0x10, 0x11, 0x13, 1707 0x01, 0x0b, 0x10, 0x11, 0x13, 0x16, 0x17, 0x19, 0x2b, 0x1e,
1717 0x2c, 0xac, 0x2f, 0xaf, 0x33, 1708 0x2c, 0xac, 0x2f, 0xaf, 0x33, 0xb3, 0x35, 0x36, 0x45, 0x47,
1718 0x48, 0x49, 0xa9, 0x4b, 0xa5, 1709 0x48, 0x49, 0xa9, 0x4b, 0xa5, 0xa6, 0xb5, 0x00
1719 }; 1710 };
1720 1711
1721 struct mscp *cpp; 1712 struct mscp *cpp;
1722 struct scsi_cmnd *SCpnt; 1713 struct scsi_cmnd *SCpnt;
1723 1714
1724 cpp = &ha->cp[i]; 1715 cpp = &ha->cp[i];
1725 SCpnt = cpp->SCpnt; 1716 SCpnt = cpp->SCpnt;
1726 1717
1727 if (SCpnt->sc_data_direction == DMA_F 1718 if (SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
1728 cpp->din = 1; 1719 cpp->din = 1;
1729 cpp->dout = 0; 1720 cpp->dout = 0;
1730 return; 1721 return;
1731 } else if (SCpnt->sc_data_direction = 1722 } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
1732 cpp->din = 0; 1723 cpp->din = 0;
1733 cpp->dout = 1; 1724 cpp->dout = 1;
1734 return; 1725 return;
1735 } else if (SCpnt->sc_data_direction = 1726 } else if (SCpnt->sc_data_direction == DMA_NONE) {
1736 cpp->din = 0; 1727 cpp->din = 0;
1737 cpp->dout = 0; 1728 cpp->dout = 0;
1738 return; 1729 return;
1739 } 1730 }
1740 1731
1741 if (SCpnt->sc_data_direction != DMA_B 1732 if (SCpnt->sc_data_direction != DMA_BIDIRECTIONAL)
1742 panic("%s: qcomm, invalid SCp 1733 panic("%s: qcomm, invalid SCpnt->sc_data_direction.\n",
1743 ha->board_nam 1734 ha->board_name);
1744 1735
1745 for (k = 0; k < ARRAY_SIZE(data_out_c 1736 for (k = 0; k < ARRAY_SIZE(data_out_cmds); k++)
1746 if (SCpnt->cmnd[0] == data_ou 1737 if (SCpnt->cmnd[0] == data_out_cmds[k]) {
1747 cpp->dout = 1; 1738 cpp->dout = 1;
1748 break; 1739 break;
1749 } 1740 }
1750 1741
1751 if ((cpp->din = !cpp->dout)) 1742 if ((cpp->din = !cpp->dout))
1752 for (k = 0; k < ARRAY_SIZE(da 1743 for (k = 0; k < ARRAY_SIZE(data_none_cmds); k++)
1753 if (SCpnt->cmnd[0] == 1744 if (SCpnt->cmnd[0] == data_none_cmds[k]) {
1754 cpp->din = 0; 1745 cpp->din = 0;
1755 break; 1746 break;
1756 } 1747 }
1757 1748
1758 } 1749 }
1759 1750
1760 static int eata2x_queuecommand(struct scsi_cm 1751 static int eata2x_queuecommand(struct scsi_cmnd *SCpnt,
1761 void (*done) ( 1752 void (*done) (struct scsi_cmnd *))
1762 { 1753 {
1763 struct Scsi_Host *shost = SCpnt->devi 1754 struct Scsi_Host *shost = SCpnt->device->host;
1764 struct hostdata *ha = (struct hostdat 1755 struct hostdata *ha = (struct hostdata *)shost->hostdata;
1765 unsigned int i, k; 1756 unsigned int i, k;
1766 struct mscp *cpp; 1757 struct mscp *cpp;
1767 1758
1768 if (SCpnt->host_scribble) 1759 if (SCpnt->host_scribble)
1769 panic("%s: qcomm, pid %ld, SC 1760 panic("%s: qcomm, pid %ld, SCpnt %p already active.\n",
1770 ha->board_name, SCpnt-> 1761 ha->board_name, SCpnt->serial_number, SCpnt);
1771 1762
1772 /* i is the mailbox number, look for 1763 /* i is the mailbox number, look for the first free mailbox
1773 starting from last_cp_used */ 1764 starting from last_cp_used */
1774 i = ha->last_cp_used + 1; 1765 i = ha->last_cp_used + 1;
1775 1766
1776 for (k = 0; k < shost->can_queue; k++ 1767 for (k = 0; k < shost->can_queue; k++, i++) {
1777 if (i >= shost->can_queue) 1768 if (i >= shost->can_queue)
1778 i = 0; 1769 i = 0;
1779 if (ha->cp_stat[i] == FREE) { 1770 if (ha->cp_stat[i] == FREE) {
1780 ha->last_cp_used = i; 1771 ha->last_cp_used = i;
1781 break; 1772 break;
1782 } 1773 }
1783 } 1774 }
1784 1775
1785 if (k == shost->can_queue) { 1776 if (k == shost->can_queue) {
1786 printk("%s: qcomm, no free ma 1777 printk("%s: qcomm, no free mailbox.\n", ha->board_name);
1787 return 1; 1778 return 1;
1788 } 1779 }
1789 1780
1790 /* Set pointer to control packet stru 1781 /* Set pointer to control packet structure */
1791 cpp = &ha->cp[i]; 1782 cpp = &ha->cp[i];
1792 1783
1793 memset(cpp, 0, sizeof(struct mscp) - 1784 memset(cpp, 0, sizeof(struct mscp) - CP_TAIL_SIZE);
1794 1785
1795 /* Set pointer to status packet struc 1786 /* Set pointer to status packet structure, Big Endian format */
1796 cpp->sp_dma_addr = H2DEV(ha->sp_dma_a 1787 cpp->sp_dma_addr = H2DEV(ha->sp_dma_addr);
1797 1788
1798 SCpnt->scsi_done = done; 1789 SCpnt->scsi_done = done;
1799 cpp->cpp_index = i; 1790 cpp->cpp_index = i;
1800 SCpnt->host_scribble = (unsigned char 1791 SCpnt->host_scribble = (unsigned char *)&cpp->cpp_index;
1801 1792
1802 if (do_trace) 1793 if (do_trace)
1803 scmd_printk(KERN_INFO, SCpnt, 1794 scmd_printk(KERN_INFO, SCpnt,
1804 "qcomm, mbox %d, pid 1795 "qcomm, mbox %d, pid %ld.\n", i, SCpnt->serial_number);
1805 1796
1806 cpp->reqsen = 1; 1797 cpp->reqsen = 1;
1807 cpp->dispri = 1; 1798 cpp->dispri = 1;
1808 #if 0 1799 #if 0
1809 if (SCpnt->device->type == TYPE_TAPE) 1800 if (SCpnt->device->type == TYPE_TAPE)
1810 cpp->hbaci = 1; 1801 cpp->hbaci = 1;
1811 #endif 1802 #endif
1812 cpp->one = 1; 1803 cpp->one = 1;
1813 cpp->channel = SCpnt->device->channel 1804 cpp->channel = SCpnt->device->channel;
1814 cpp->target = SCpnt->device->id; 1805 cpp->target = SCpnt->device->id;
1815 cpp->lun = SCpnt->device->lun; 1806 cpp->lun = SCpnt->device->lun;
1816 cpp->SCpnt = SCpnt; 1807 cpp->SCpnt = SCpnt;
1817 memcpy(cpp->cdb, SCpnt->cmnd, SCpnt-> 1808 memcpy(cpp->cdb, SCpnt->cmnd, SCpnt->cmd_len);
1818 1809
1819 /* Use data transfer direction SCpnt- 1810 /* Use data transfer direction SCpnt->sc_data_direction */
1820 scsi_to_dev_dir(i, ha); 1811 scsi_to_dev_dir(i, ha);
1821 1812
1822 /* Map DMA buffers and SG list */ 1813 /* Map DMA buffers and SG list */
1823 map_dma(i, ha); 1814 map_dma(i, ha);
1824 1815
1825 if (linked_comm && SCpnt->device->que 1816 if (linked_comm && SCpnt->device->queue_depth > 2
1826 && TLDEV(SCpnt->device->type)) { 1817 && TLDEV(SCpnt->device->type)) {
1827 ha->cp_stat[i] = READY; 1818 ha->cp_stat[i] = READY;
1828 flush_dev(SCpnt->device, blk_ !! 1819 flush_dev(SCpnt->device, SCpnt->request->sector, ha, 0);
1829 return 0; 1820 return 0;
1830 } 1821 }
1831 1822
1832 /* Send control packet to the board * 1823 /* Send control packet to the board */
1833 if (do_dma(shost->io_port, cpp->cp_dm 1824 if (do_dma(shost->io_port, cpp->cp_dma_addr, SEND_CP_DMA)) {
1834 unmap_dma(i, ha); 1825 unmap_dma(i, ha);
1835 SCpnt->host_scribble = NULL; 1826 SCpnt->host_scribble = NULL;
1836 scmd_printk(KERN_INFO, SCpnt, 1827 scmd_printk(KERN_INFO, SCpnt,
1837 "qcomm, pid %ld, adap 1828 "qcomm, pid %ld, adapter busy.\n", SCpnt->serial_number);
1838 return 1; 1829 return 1;
1839 } 1830 }
1840 1831
1841 ha->cp_stat[i] = IN_USE; 1832 ha->cp_stat[i] = IN_USE;
1842 return 0; 1833 return 0;
1843 } 1834 }
1844 1835
1845 static int eata2x_eh_abort(struct scsi_cmnd * 1836 static int eata2x_eh_abort(struct scsi_cmnd *SCarg)
1846 { 1837 {
1847 struct Scsi_Host *shost = SCarg->devi 1838 struct Scsi_Host *shost = SCarg->device->host;
1848 struct hostdata *ha = (struct hostdat 1839 struct hostdata *ha = (struct hostdata *)shost->hostdata;
1849 unsigned int i; 1840 unsigned int i;
1850 1841
1851 if (SCarg->host_scribble == NULL) { 1842 if (SCarg->host_scribble == NULL) {
1852 scmd_printk(KERN_INFO, SCarg, 1843 scmd_printk(KERN_INFO, SCarg,
1853 "abort, pid %ld inact 1844 "abort, pid %ld inactive.\n", SCarg->serial_number);
1854 return SUCCESS; 1845 return SUCCESS;
1855 } 1846 }
1856 1847
1857 i = *(unsigned int *)SCarg->host_scri 1848 i = *(unsigned int *)SCarg->host_scribble;
1858 scmd_printk(KERN_WARNING, SCarg, 1849 scmd_printk(KERN_WARNING, SCarg,
1859 "abort, mbox %d, pid %ld.\n", 1850 "abort, mbox %d, pid %ld.\n", i, SCarg->serial_number);
1860 1851
1861 if (i >= shost->can_queue) 1852 if (i >= shost->can_queue)
1862 panic("%s: abort, invalid SCa 1853 panic("%s: abort, invalid SCarg->host_scribble.\n", ha->board_name);
1863 1854
1864 if (wait_on_busy(shost->io_port, MAXL 1855 if (wait_on_busy(shost->io_port, MAXLOOP)) {
1865 printk("%s: abort, timeout er 1856 printk("%s: abort, timeout error.\n", ha->board_name);
1866 return FAILED; 1857 return FAILED;
1867 } 1858 }
1868 1859
1869 if (ha->cp_stat[i] == FREE) { 1860 if (ha->cp_stat[i] == FREE) {
1870 printk("%s: abort, mbox %d is 1861 printk("%s: abort, mbox %d is free.\n", ha->board_name, i);
1871 return SUCCESS; 1862 return SUCCESS;
1872 } 1863 }
1873 1864
1874 if (ha->cp_stat[i] == IN_USE) { 1865 if (ha->cp_stat[i] == IN_USE) {
1875 printk("%s: abort, mbox %d is 1866 printk("%s: abort, mbox %d is in use.\n", ha->board_name, i);
1876 1867
1877 if (SCarg != ha->cp[i].SCpnt) 1868 if (SCarg != ha->cp[i].SCpnt)
1878 panic("%s: abort, mbo 1869 panic("%s: abort, mbox %d, SCarg %p, cp SCpnt %p.\n",
1879 ha->board_name, 1870 ha->board_name, i, SCarg, ha->cp[i].SCpnt);
1880 1871
1881 if (inb(shost->io_port + REG_ 1872 if (inb(shost->io_port + REG_AUX_STATUS) & IRQ_ASSERTED)
1882 printk("%s: abort, mb 1873 printk("%s: abort, mbox %d, interrupt pending.\n",
1883 ha->board_name 1874 ha->board_name, i);
1884 1875
1885 return FAILED; 1876 return FAILED;
1886 } 1877 }
1887 1878
1888 if (ha->cp_stat[i] == IN_RESET) { 1879 if (ha->cp_stat[i] == IN_RESET) {
1889 printk("%s: abort, mbox %d is 1880 printk("%s: abort, mbox %d is in reset.\n", ha->board_name, i);
1890 return FAILED; 1881 return FAILED;
1891 } 1882 }
1892 1883
1893 if (ha->cp_stat[i] == LOCKED) { 1884 if (ha->cp_stat[i] == LOCKED) {
1894 printk("%s: abort, mbox %d is 1885 printk("%s: abort, mbox %d is locked.\n", ha->board_name, i);
1895 return SUCCESS; 1886 return SUCCESS;
1896 } 1887 }
1897 1888
1898 if (ha->cp_stat[i] == READY || ha->cp 1889 if (ha->cp_stat[i] == READY || ha->cp_stat[i] == ABORTING) {
1899 unmap_dma(i, ha); 1890 unmap_dma(i, ha);
1900 SCarg->result = DID_ABORT << 1891 SCarg->result = DID_ABORT << 16;
1901 SCarg->host_scribble = NULL; 1892 SCarg->host_scribble = NULL;
1902 ha->cp_stat[i] = FREE; 1893 ha->cp_stat[i] = FREE;
1903 printk("%s, abort, mbox %d re 1894 printk("%s, abort, mbox %d ready, DID_ABORT, pid %ld done.\n",
1904 ha->board_name, i, SCa 1895 ha->board_name, i, SCarg->serial_number);
1905 SCarg->scsi_done(SCarg); 1896 SCarg->scsi_done(SCarg);
1906 return SUCCESS; 1897 return SUCCESS;
1907 } 1898 }
1908 1899
1909 panic("%s: abort, mbox %d, invalid cp 1900 panic("%s: abort, mbox %d, invalid cp_stat.\n", ha->board_name, i);
1910 } 1901 }
1911 1902
1912 static int eata2x_eh_host_reset(struct scsi_c 1903 static int eata2x_eh_host_reset(struct scsi_cmnd *SCarg)
1913 { 1904 {
1914 unsigned int i, time, k, c, limit = 0 1905 unsigned int i, time, k, c, limit = 0;
1915 int arg_done = 0; 1906 int arg_done = 0;
1916 struct scsi_cmnd *SCpnt; 1907 struct scsi_cmnd *SCpnt;
1917 struct Scsi_Host *shost = SCarg->devi 1908 struct Scsi_Host *shost = SCarg->device->host;
1918 struct hostdata *ha = (struct hostdat 1909 struct hostdata *ha = (struct hostdata *)shost->hostdata;
1919 1910
1920 scmd_printk(KERN_INFO, SCarg, 1911 scmd_printk(KERN_INFO, SCarg,
1921 "reset, enter, pid %ld.\n", S 1912 "reset, enter, pid %ld.\n", SCarg->serial_number);
1922 1913
1923 spin_lock_irq(shost->host_lock); 1914 spin_lock_irq(shost->host_lock);
1924 1915
1925 if (SCarg->host_scribble == NULL) 1916 if (SCarg->host_scribble == NULL)
1926 printk("%s: reset, pid %ld in 1917 printk("%s: reset, pid %ld inactive.\n", ha->board_name, SCarg->serial_number);
1927 1918
1928 if (ha->in_reset) { 1919 if (ha->in_reset) {
1929 printk("%s: reset, exit, alre 1920 printk("%s: reset, exit, already in reset.\n", ha->board_name);
1930 spin_unlock_irq(shost->host_l 1921 spin_unlock_irq(shost->host_lock);
1931 return FAILED; 1922 return FAILED;
1932 } 1923 }
1933 1924
1934 if (wait_on_busy(shost->io_port, MAXL 1925 if (wait_on_busy(shost->io_port, MAXLOOP)) {
1935 printk("%s: reset, exit, time 1926 printk("%s: reset, exit, timeout error.\n", ha->board_name);
1936 spin_unlock_irq(shost->host_l 1927 spin_unlock_irq(shost->host_lock);
1937 return FAILED; 1928 return FAILED;
1938 } 1929 }
1939 1930
1940 ha->retries = 0; 1931 ha->retries = 0;
1941 1932
1942 for (c = 0; c <= shost->max_channel; 1933 for (c = 0; c <= shost->max_channel; c++)
1943 for (k = 0; k < shost->max_id 1934 for (k = 0; k < shost->max_id; k++) {
1944 ha->target_redo[k][c] 1935 ha->target_redo[k][c] = 1;
1945 ha->target_to[k][c] = 1936 ha->target_to[k][c] = 0;
1946 } 1937 }
1947 1938
1948 for (i = 0; i < shost->can_queue; i++ 1939 for (i = 0; i < shost->can_queue; i++) {
1949 1940
1950 if (ha->cp_stat[i] == FREE) 1941 if (ha->cp_stat[i] == FREE)
1951 continue; 1942 continue;
1952 1943
1953 if (ha->cp_stat[i] == LOCKED) 1944 if (ha->cp_stat[i] == LOCKED) {
1954 ha->cp_stat[i] = FREE 1945 ha->cp_stat[i] = FREE;
1955 printk("%s: reset, lo 1946 printk("%s: reset, locked mbox %d forced free.\n",
1956 ha->board_name 1947 ha->board_name, i);
1957 continue; 1948 continue;
1958 } 1949 }
1959 1950
1960 if (!(SCpnt = ha->cp[i].SCpnt 1951 if (!(SCpnt = ha->cp[i].SCpnt))
1961 panic("%s: reset, mbo 1952 panic("%s: reset, mbox %d, SCpnt == NULL.\n", ha->board_name, i);
1962 1953
1963 if (ha->cp_stat[i] == READY | 1954 if (ha->cp_stat[i] == READY || ha->cp_stat[i] == ABORTING) {
1964 ha->cp_stat[i] = ABOR 1955 ha->cp_stat[i] = ABORTING;
1965 printk("%s: reset, mb 1956 printk("%s: reset, mbox %d aborting, pid %ld.\n",
1966 ha->board_name 1957 ha->board_name, i, SCpnt->serial_number);
1967 } 1958 }
1968 1959
1969 else { 1960 else {
1970 ha->cp_stat[i] = IN_R 1961 ha->cp_stat[i] = IN_RESET;
1971 printk("%s: reset, mb 1962 printk("%s: reset, mbox %d in reset, pid %ld.\n",
1972 ha->board_name 1963 ha->board_name, i, SCpnt->serial_number);
1973 } 1964 }
1974 1965
1975 if (SCpnt->host_scribble == N 1966 if (SCpnt->host_scribble == NULL)
1976 panic("%s: reset, mbo 1967 panic("%s: reset, mbox %d, garbled SCpnt.\n", ha->board_name, i);
1977 1968
1978 if (*(unsigned int *)SCpnt->h 1969 if (*(unsigned int *)SCpnt->host_scribble != i)
1979 panic("%s: reset, mbo 1970 panic("%s: reset, mbox %d, index mismatch.\n", ha->board_name, i);
1980 1971
1981 if (SCpnt->scsi_done == NULL) 1972 if (SCpnt->scsi_done == NULL)
1982 panic("%s: reset, mbo 1973 panic("%s: reset, mbox %d, SCpnt->scsi_done == NULL.\n",
1983 ha->board_name, 1974 ha->board_name, i);
1984 1975
1985 if (SCpnt == SCarg) 1976 if (SCpnt == SCarg)
1986 arg_done = 1; 1977 arg_done = 1;
1987 } 1978 }
1988 1979
1989 if (do_dma(shost->io_port, 0, RESET_P 1980 if (do_dma(shost->io_port, 0, RESET_PIO)) {
1990 printk("%s: reset, cannot res 1981 printk("%s: reset, cannot reset, timeout error.\n", ha->board_name);
1991 spin_unlock_irq(shost->host_l 1982 spin_unlock_irq(shost->host_lock);
1992 return FAILED; 1983 return FAILED;
1993 } 1984 }
1994 1985
1995 printk("%s: reset, board reset done, 1986 printk("%s: reset, board reset done, enabling interrupts.\n", ha->board_name);
1996 1987
1997 #if defined(DEBUG_RESET) 1988 #if defined(DEBUG_RESET)
1998 do_trace = 1; 1989 do_trace = 1;
1999 #endif 1990 #endif
2000 1991
2001 ha->in_reset = 1; 1992 ha->in_reset = 1;
2002 1993
2003 spin_unlock_irq(shost->host_lock); 1994 spin_unlock_irq(shost->host_lock);
2004 1995
2005 /* FIXME: use a sleep instead */ 1996 /* FIXME: use a sleep instead */
2006 time = jiffies; 1997 time = jiffies;
2007 while ((jiffies - time) < (10 * HZ) & 1998 while ((jiffies - time) < (10 * HZ) && limit++ < 200000)
2008 udelay(100L); 1999 udelay(100L);
2009 2000
2010 spin_lock_irq(shost->host_lock); 2001 spin_lock_irq(shost->host_lock);
2011 2002
2012 printk("%s: reset, interrupts disable 2003 printk("%s: reset, interrupts disabled, loops %d.\n", ha->board_name, limit);
2013 2004
2014 for (i = 0; i < shost->can_queue; i++ 2005 for (i = 0; i < shost->can_queue; i++) {
2015 2006
2016 if (ha->cp_stat[i] == IN_RESE 2007 if (ha->cp_stat[i] == IN_RESET) {
2017 SCpnt = ha->cp[i].SCp 2008 SCpnt = ha->cp[i].SCpnt;
2018 unmap_dma(i, ha); 2009 unmap_dma(i, ha);
2019 SCpnt->result = DID_R 2010 SCpnt->result = DID_RESET << 16;
2020 SCpnt->host_scribble 2011 SCpnt->host_scribble = NULL;
2021 2012
2022 /* This mailbox is st 2013 /* This mailbox is still waiting for its interrupt */
2023 ha->cp_stat[i] = LOCK 2014 ha->cp_stat[i] = LOCKED;
2024 2015
2025 printk 2016 printk
2026 ("%s, reset, mbox 2017 ("%s, reset, mbox %d locked, DID_RESET, pid %ld done.\n",
2027 ha->board_name, 2018 ha->board_name, i, SCpnt->serial_number);
2028 } 2019 }
2029 2020
2030 else if (ha->cp_stat[i] == AB 2021 else if (ha->cp_stat[i] == ABORTING) {
2031 SCpnt = ha->cp[i].SCp 2022 SCpnt = ha->cp[i].SCpnt;
2032 unmap_dma(i, ha); 2023 unmap_dma(i, ha);
2033 SCpnt->result = DID_R 2024 SCpnt->result = DID_RESET << 16;
2034 SCpnt->host_scribble 2025 SCpnt->host_scribble = NULL;
2035 2026
2036 /* This mailbox was n 2027 /* This mailbox was never queued to the adapter */
2037 ha->cp_stat[i] = FREE 2028 ha->cp_stat[i] = FREE;
2038 2029
2039 printk 2030 printk
2040 ("%s, reset, mbox 2031 ("%s, reset, mbox %d aborting, DID_RESET, pid %ld done.\n",
2041 ha->board_name, 2032 ha->board_name, i, SCpnt->serial_number);
2042 } 2033 }
2043 2034
2044 else 2035 else
2045 /* Any other mailbox 2036 /* Any other mailbox has already been set free by interrupt */
2046 continue; 2037 continue;
2047 2038
2048 SCpnt->scsi_done(SCpnt); 2039 SCpnt->scsi_done(SCpnt);
2049 } 2040 }
2050 2041
2051 ha->in_reset = 0; 2042 ha->in_reset = 0;
2052 do_trace = 0; 2043 do_trace = 0;
2053 2044
2054 if (arg_done) 2045 if (arg_done)
2055 printk("%s: reset, exit, pid 2046 printk("%s: reset, exit, pid %ld done.\n", ha->board_name, SCarg->serial_number);
2056 else 2047 else
2057 printk("%s: reset, exit.\n", 2048 printk("%s: reset, exit.\n", ha->board_name);
2058 2049
2059 spin_unlock_irq(shost->host_lock); 2050 spin_unlock_irq(shost->host_lock);
2060 return SUCCESS; 2051 return SUCCESS;
2061 } 2052 }
2062 2053
2063 int eata2x_bios_param(struct scsi_device *sde 2054 int eata2x_bios_param(struct scsi_device *sdev, struct block_device *bdev,
2064 sector_t capacity, int 2055 sector_t capacity, int *dkinfo)
2065 { 2056 {
2066 unsigned int size = capacity; 2057 unsigned int size = capacity;
2067 2058
2068 if (ext_tran || (scsicam_bios_param(b 2059 if (ext_tran || (scsicam_bios_param(bdev, capacity, dkinfo) < 0)) {
2069 dkinfo[0] = 255; 2060 dkinfo[0] = 255;
2070 dkinfo[1] = 63; 2061 dkinfo[1] = 63;
2071 dkinfo[2] = size / (dkinfo[0] 2062 dkinfo[2] = size / (dkinfo[0] * dkinfo[1]);
2072 } 2063 }
2073 #if defined (DEBUG_GEOMETRY) 2064 #if defined (DEBUG_GEOMETRY)
2074 printk("%s: bios_param, head=%d, sec= 2065 printk("%s: bios_param, head=%d, sec=%d, cyl=%d.\n", driver_name,
2075 dkinfo[0], dkinfo[1], dkinfo[2 2066 dkinfo[0], dkinfo[1], dkinfo[2]);
2076 #endif 2067 #endif
2077 2068
2078 return 0; 2069 return 0;
2079 } 2070 }
2080 2071
2081 static void sort(unsigned long sk[], unsigned 2072 static void sort(unsigned long sk[], unsigned int da[], unsigned int n,
2082 unsigned int rev) 2073 unsigned int rev)
2083 { 2074 {
2084 unsigned int i, j, k, y; 2075 unsigned int i, j, k, y;
2085 unsigned long x; 2076 unsigned long x;
2086 2077
2087 for (i = 0; i < n - 1; i++) { 2078 for (i = 0; i < n - 1; i++) {
2088 k = i; 2079 k = i;
2089 2080
2090 for (j = k + 1; j < n; j++) 2081 for (j = k + 1; j < n; j++)
2091 if (rev) { 2082 if (rev) {
2092 if (sk[j] > s 2083 if (sk[j] > sk[k])
2093 k = j 2084 k = j;
2094 } else { 2085 } else {
2095 if (sk[j] < s 2086 if (sk[j] < sk[k])
2096 k = j 2087 k = j;
2097 } 2088 }
2098 2089
2099 if (k != i) { 2090 if (k != i) {
2100 x = sk[k]; 2091 x = sk[k];
2101 sk[k] = sk[i]; 2092 sk[k] = sk[i];
2102 sk[i] = x; 2093 sk[i] = x;
2103 y = da[k]; 2094 y = da[k];
2104 da[k] = da[i]; 2095 da[k] = da[i];
2105 da[i] = y; 2096 da[i] = y;
2106 } 2097 }
2107 } 2098 }
2108 2099
2109 return; 2100 return;
2110 } 2101 }
2111 2102
2112 static int reorder(struct hostdata *ha, unsig 2103 static int reorder(struct hostdata *ha, unsigned long cursec,
2113 unsigned int ihdlr, unsign 2104 unsigned int ihdlr, unsigned int il[], unsigned int n_ready)
2114 { 2105 {
2115 struct scsi_cmnd *SCpnt; 2106 struct scsi_cmnd *SCpnt;
2116 struct mscp *cpp; 2107 struct mscp *cpp;
2117 unsigned int k, n; 2108 unsigned int k, n;
2118 unsigned int rev = 0, s = 1, r = 1; 2109 unsigned int rev = 0, s = 1, r = 1;
2119 unsigned int input_only = 1, overlap 2110 unsigned int input_only = 1, overlap = 0;
2120 unsigned long sl[n_ready], pl[n_ready 2111 unsigned long sl[n_ready], pl[n_ready], ll[n_ready];
2121 unsigned long maxsec = 0, minsec = UL 2112 unsigned long maxsec = 0, minsec = ULONG_MAX, seek = 0, iseek = 0;
2122 unsigned long ioseek = 0; 2113 unsigned long ioseek = 0;
2123 2114
2124 static unsigned int flushcount = 0, b 2115 static unsigned int flushcount = 0, batchcount = 0, sortcount = 0;
2125 static unsigned int readycount = 0, o 2116 static unsigned int readycount = 0, ovlcount = 0, inputcount = 0;
2126 static unsigned int readysorted = 0, 2117 static unsigned int readysorted = 0, revcount = 0;
2127 static unsigned long seeksorted = 0, 2118 static unsigned long seeksorted = 0, seeknosort = 0;
2128 2119
2129 if (link_statistics && !(++flushcount 2120 if (link_statistics && !(++flushcount % link_statistics))
2130 printk("fc %d bc %d ic %d oc 2121 printk("fc %d bc %d ic %d oc %d rc %d rs %d sc %d re %d"
2131 " av %ldK as %ldK.\n", 2122 " av %ldK as %ldK.\n", flushcount, batchcount,
2132 inputcount, ovlcount, 2123 inputcount, ovlcount, readycount, readysorted, sortcount,
2133 revcount, seeknosort / 2124 revcount, seeknosort / (readycount + 1),
2134 seeksorted / (readycou 2125 seeksorted / (readycount + 1));
2135 2126
2136 if (n_ready <= 1) 2127 if (n_ready <= 1)
2137 return 0; 2128 return 0;
2138 2129
2139 for (n = 0; n < n_ready; n++) { 2130 for (n = 0; n < n_ready; n++) {
2140 k = il[n]; 2131 k = il[n];
2141 cpp = &ha->cp[k]; 2132 cpp = &ha->cp[k];
2142 SCpnt = cpp->SCpnt; 2133 SCpnt = cpp->SCpnt;
2143 2134
2144 if (!cpp->din) 2135 if (!cpp->din)
2145 input_only = 0; 2136 input_only = 0;
2146 2137
2147 if (blk_rq_pos(SCpnt->request !! 2138 if (SCpnt->request->sector < minsec)
2148 minsec = blk_rq_pos(S !! 2139 minsec = SCpnt->request->sector;
2149 if (blk_rq_pos(SCpnt->request !! 2140 if (SCpnt->request->sector > maxsec)
2150 maxsec = blk_rq_pos(S !! 2141 maxsec = SCpnt->request->sector;
2151 2142
2152 sl[n] = blk_rq_pos(SCpnt->req !! 2143 sl[n] = SCpnt->request->sector;
2153 ioseek += blk_rq_sectors(SCpn !! 2144 ioseek += SCpnt->request->nr_sectors;
2154 2145
2155 if (!n) 2146 if (!n)
2156 continue; 2147 continue;
2157 2148
2158 if (sl[n] < sl[n - 1]) 2149 if (sl[n] < sl[n - 1])
2159 s = 0; 2150 s = 0;
2160 if (sl[n] > sl[n - 1]) 2151 if (sl[n] > sl[n - 1])
2161 r = 0; 2152 r = 0;
2162 2153
2163 if (link_statistics) { 2154 if (link_statistics) {
2164 if (sl[n] > sl[n - 1] 2155 if (sl[n] > sl[n - 1])
2165 seek += sl[n] 2156 seek += sl[n] - sl[n - 1];
2166 else 2157 else
2167 seek += sl[n 2158 seek += sl[n - 1] - sl[n];
2168 } 2159 }
2169 2160
2170 } 2161 }
2171 2162
2172 if (link_statistics) { 2163 if (link_statistics) {
2173 if (cursec > sl[0]) 2164 if (cursec > sl[0])
2174 seek += cursec - sl[0 2165 seek += cursec - sl[0];
2175 else 2166 else
2176 seek += sl[0] - curse 2167 seek += sl[0] - cursec;
2177 } 2168 }
2178 2169
2179 if (cursec > ((maxsec + minsec) / 2)) 2170 if (cursec > ((maxsec + minsec) / 2))
2180 rev = 1; 2171 rev = 1;
2181 2172
2182 if (ioseek > ((maxsec - minsec) / 2)) 2173 if (ioseek > ((maxsec - minsec) / 2))
2183 rev = 0; 2174 rev = 0;
2184 2175
2185 if (!((rev && r) || (!rev && s))) 2176 if (!((rev && r) || (!rev && s)))
2186 sort(sl, il, n_ready, rev); 2177 sort(sl, il, n_ready, rev);
2187 2178
2188 if (!input_only) 2179 if (!input_only)
2189 for (n = 0; n < n_ready; n++) 2180 for (n = 0; n < n_ready; n++) {
2190 k = il[n]; 2181 k = il[n];
2191 cpp = &ha->cp[k]; 2182 cpp = &ha->cp[k];
2192 SCpnt = cpp->SCpnt; 2183 SCpnt = cpp->SCpnt;
2193 ll[n] = blk_rq_sector !! 2184 ll[n] = SCpnt->request->nr_sectors;
2194 pl[n] = SCpnt->serial 2185 pl[n] = SCpnt->serial_number;
2195 2186
2196 if (!n) 2187 if (!n)
2197 continue; 2188 continue;
2198 2189
2199 if ((sl[n] == sl[n - 2190 if ((sl[n] == sl[n - 1])
2200 || (!rev && ((sl[ 2191 || (!rev && ((sl[n - 1] + ll[n - 1]) > sl[n]))
2201 || (rev && ((sl[n 2192 || (rev && ((sl[n] + ll[n]) > sl[n - 1])))
2202 overlap = 1; 2193 overlap = 1;
2203 } 2194 }
2204 2195
2205 if (overlap) 2196 if (overlap)
2206 sort(pl, il, n_ready, 0); 2197 sort(pl, il, n_ready, 0);
2207 2198
2208 if (link_statistics) { 2199 if (link_statistics) {
2209 if (cursec > sl[0]) 2200 if (cursec > sl[0])
2210 iseek = cursec - sl[0 2201 iseek = cursec - sl[0];
2211 else 2202 else
2212 iseek = sl[0] - curse 2203 iseek = sl[0] - cursec;
2213 batchcount++; 2204 batchcount++;
2214 readycount += n_ready; 2205 readycount += n_ready;
2215 seeknosort += seek / 1024; 2206 seeknosort += seek / 1024;
2216 if (input_only) 2207 if (input_only)
2217 inputcount++; 2208 inputcount++;
2218 if (overlap) { 2209 if (overlap) {
2219 ovlcount++; 2210 ovlcount++;
2220 seeksorted += iseek / 2211 seeksorted += iseek / 1024;
2221 } else 2212 } else
2222 seeksorted += (iseek 2213 seeksorted += (iseek + maxsec - minsec) / 1024;
2223 if (rev && !r) { 2214 if (rev && !r) {
2224 revcount++; 2215 revcount++;
2225 readysorted += n_read 2216 readysorted += n_ready;
2226 } 2217 }
2227 if (!rev && !s) { 2218 if (!rev && !s) {
2228 sortcount++; 2219 sortcount++;
2229 readysorted += n_read 2220 readysorted += n_ready;
2230 } 2221 }
2231 } 2222 }
2232 #if defined(DEBUG_LINKED_COMMANDS) 2223 #if defined(DEBUG_LINKED_COMMANDS)
2233 if (link_statistics && (overlap || !( 2224 if (link_statistics && (overlap || !(flushcount % link_statistics)))
2234 for (n = 0; n < n_ready; n++) 2225 for (n = 0; n < n_ready; n++) {
2235 k = il[n]; 2226 k = il[n];
2236 cpp = &ha->cp[k]; 2227 cpp = &ha->cp[k];
2237 SCpnt = cpp->SCpnt; 2228 SCpnt = cpp->SCpnt;
2238 scmd_printk(KERN_INFO 2229 scmd_printk(KERN_INFO, SCpnt,
2239 "%s pid %ld mb %d !! 2230 "%s pid %ld mb %d fc %d nr %d sec %ld ns %ld"
2240 " cur %ld s:%c r 2231 " cur %ld s:%c r:%c rev:%c in:%c ov:%c xd %d.\n",
2241 (ihdlr ? "ihdlr" 2232 (ihdlr ? "ihdlr" : "qcomm"),
2242 SCpnt->serial_nu 2233 SCpnt->serial_number, k, flushcount,
2243 n_ready, blk_rq_ !! 2234 n_ready, SCpnt->request->sector,
2244 blk_rq_sectors(S !! 2235 SCpnt->request->nr_sectors, cursec, YESNO(s),
2245 YESNO(r), YESNO( 2236 YESNO(r), YESNO(rev), YESNO(input_only),
2246 YESNO(overlap), 2237 YESNO(overlap), cpp->din);
2247 } 2238 }
2248 #endif 2239 #endif
2249 return overlap; 2240 return overlap;
2250 } 2241 }
2251 2242
2252 static void flush_dev(struct scsi_device *dev 2243 static void flush_dev(struct scsi_device *dev, unsigned long cursec,
2253 struct hostdata *ha, un 2244 struct hostdata *ha, unsigned int ihdlr)
2254 { 2245 {
2255 struct scsi_cmnd *SCpnt; 2246 struct scsi_cmnd *SCpnt;
2256 struct mscp *cpp; 2247 struct mscp *cpp;
2257 unsigned int k, n, n_ready = 0, il[MA 2248 unsigned int k, n, n_ready = 0, il[MAX_MAILBOXES];
2258 2249
2259 for (k = 0; k < dev->host->can_queue; 2250 for (k = 0; k < dev->host->can_queue; k++) {
2260 2251
2261 if (ha->cp_stat[k] != READY & 2252 if (ha->cp_stat[k] != READY && ha->cp_stat[k] != IN_USE)
2262 continue; 2253 continue;
2263 2254
2264 cpp = &ha->cp[k]; 2255 cpp = &ha->cp[k];
2265 SCpnt = cpp->SCpnt; 2256 SCpnt = cpp->SCpnt;
2266 2257
2267 if (SCpnt->device != dev) 2258 if (SCpnt->device != dev)
2268 continue; 2259 continue;
2269 2260
2270 if (ha->cp_stat[k] == IN_USE) 2261 if (ha->cp_stat[k] == IN_USE)
2271 return; 2262 return;
2272 2263
2273 il[n_ready++] = k; 2264 il[n_ready++] = k;
2274 } 2265 }
2275 2266
2276 if (reorder(ha, cursec, ihdlr, il, n_ 2267 if (reorder(ha, cursec, ihdlr, il, n_ready))
2277 n_ready = 1; 2268 n_ready = 1;
2278 2269
2279 for (n = 0; n < n_ready; n++) { 2270 for (n = 0; n < n_ready; n++) {
2280 k = il[n]; 2271 k = il[n];
2281 cpp = &ha->cp[k]; 2272 cpp = &ha->cp[k];
2282 SCpnt = cpp->SCpnt; 2273 SCpnt = cpp->SCpnt;
2283 2274
2284 if (do_dma(dev->host->io_port 2275 if (do_dma(dev->host->io_port, cpp->cp_dma_addr, SEND_CP_DMA)) {
2285 scmd_printk(KERN_INFO 2276 scmd_printk(KERN_INFO, SCpnt,
2286 "%s, pid %ld, mbo 2277 "%s, pid %ld, mbox %d, adapter"
2287 " busy, will abo 2278 " busy, will abort.\n",
2288 (ihdlr ? "ihdlr" 2279 (ihdlr ? "ihdlr" : "qcomm"),
2289 SCpnt->serial_nu 2280 SCpnt->serial_number, k);
2290 ha->cp_stat[k] = ABOR 2281 ha->cp_stat[k] = ABORTING;
2291 continue; 2282 continue;
2292 } 2283 }
2293 2284
2294 ha->cp_stat[k] = IN_USE; 2285 ha->cp_stat[k] = IN_USE;
2295 } 2286 }
2296 } 2287 }
2297 2288
2298 static irqreturn_t ihdlr(struct Scsi_Host *sh !! 2289 static irqreturn_t ihdlr(int irq, struct Scsi_Host *shost)
2299 { 2290 {
2300 struct scsi_cmnd *SCpnt; 2291 struct scsi_cmnd *SCpnt;
2301 unsigned int i, k, c, status, tstatus 2292 unsigned int i, k, c, status, tstatus, reg;
2302 struct mssp *spp; 2293 struct mssp *spp;
2303 struct mscp *cpp; 2294 struct mscp *cpp;
2304 struct hostdata *ha = (struct hostdat 2295 struct hostdata *ha = (struct hostdata *)shost->hostdata;
2305 int irq = shost->irq; !! 2296
>> 2297 if (shost->irq != irq)
>> 2298 panic("%s: ihdlr, irq %d, shost->irq %d.\n", ha->board_name, irq,
>> 2299 shost->irq);
2306 2300
2307 /* Check if this board need to be ser 2301 /* Check if this board need to be serviced */
2308 if (!(inb(shost->io_port + REG_AUX_ST 2302 if (!(inb(shost->io_port + REG_AUX_STATUS) & IRQ_ASSERTED))
2309 goto none; 2303 goto none;
2310 2304
2311 ha->iocount++; 2305 ha->iocount++;
2312 2306
2313 if (do_trace) 2307 if (do_trace)
2314 printk("%s: ihdlr, enter, irq 2308 printk("%s: ihdlr, enter, irq %d, count %d.\n", ha->board_name, irq,
2315 ha->iocount); 2309 ha->iocount);
2316 2310
2317 /* Check if this board is still busy 2311 /* Check if this board is still busy */
2318 if (wait_on_busy(shost->io_port, 20 * 2312 if (wait_on_busy(shost->io_port, 20 * MAXLOOP)) {
2319 reg = inb(shost->io_port + RE 2313 reg = inb(shost->io_port + REG_STATUS);
2320 printk 2314 printk
2321 ("%s: ihdlr, busy timeout 2315 ("%s: ihdlr, busy timeout error, irq %d, reg 0x%x, count %d.\n",
2322 ha->board_name, irq, reg 2316 ha->board_name, irq, reg, ha->iocount);
2323 goto none; 2317 goto none;
2324 } 2318 }
2325 2319
2326 spp = &ha->sp; 2320 spp = &ha->sp;
2327 2321
2328 /* Make a local copy just before clea 2322 /* Make a local copy just before clearing the interrupt indication */
2329 memcpy(spp, ha->sp_cpu_addr, sizeof(s 2323 memcpy(spp, ha->sp_cpu_addr, sizeof(struct mssp));
2330 2324
2331 /* Clear the completion flag and cp p 2325 /* Clear the completion flag and cp pointer on the dynamic copy of sp */
2332 memset(ha->sp_cpu_addr, 0, sizeof(str 2326 memset(ha->sp_cpu_addr, 0, sizeof(struct mssp));
2333 2327
2334 /* Read the status register to clear 2328 /* Read the status register to clear the interrupt indication */
2335 reg = inb(shost->io_port + REG_STATUS 2329 reg = inb(shost->io_port + REG_STATUS);
2336 2330
2337 #if defined (DEBUG_INTERRUPT) 2331 #if defined (DEBUG_INTERRUPT)
2338 { 2332 {
2339 unsigned char *bytesp; 2333 unsigned char *bytesp;
2340 int cnt; 2334 int cnt;
2341 bytesp = (unsigned char *)spp 2335 bytesp = (unsigned char *)spp;
2342 if (ha->iocount < 200) { 2336 if (ha->iocount < 200) {
2343 printk("sp[] ="); 2337 printk("sp[] =");
2344 for (cnt = 0; cnt < 1 2338 for (cnt = 0; cnt < 15; cnt++)
2345 printk(" 0x%x 2339 printk(" 0x%x", bytesp[cnt]);
2346 printk("\n"); 2340 printk("\n");
2347 } 2341 }
2348 } 2342 }
2349 #endif 2343 #endif
2350 2344
2351 /* Reject any sp with supspect data * 2345 /* Reject any sp with supspect data */
2352 if (spp->eoc == 0 && ha->iocount > 1) 2346 if (spp->eoc == 0 && ha->iocount > 1)
2353 printk 2347 printk
2354 ("%s: ihdlr, spp->eoc == 2348 ("%s: ihdlr, spp->eoc == 0, irq %d, reg 0x%x, count %d.\n",
2355 ha->board_name, irq, reg 2349 ha->board_name, irq, reg, ha->iocount);
2356 if (spp->cpp_index < 0 || spp->cpp_in 2350 if (spp->cpp_index < 0 || spp->cpp_index >= shost->can_queue)
2357 printk 2351 printk
2358 ("%s: ihdlr, bad spp->cpp 2352 ("%s: ihdlr, bad spp->cpp_index %d, irq %d, reg 0x%x, count %d.\n",
2359 ha->board_name, spp->cpp 2353 ha->board_name, spp->cpp_index, irq, reg, ha->iocount);
2360 if (spp->eoc == 0 || spp->cpp_index < 2354 if (spp->eoc == 0 || spp->cpp_index < 0
2361 || spp->cpp_index >= shost->can_q 2355 || spp->cpp_index >= shost->can_queue)
2362 goto handled; 2356 goto handled;
2363 2357
2364 /* Find the mailbox to be serviced on 2358 /* Find the mailbox to be serviced on this board */
2365 i = spp->cpp_index; 2359 i = spp->cpp_index;
2366 2360
2367 cpp = &(ha->cp[i]); 2361 cpp = &(ha->cp[i]);
2368 2362
2369 #if defined(DEBUG_GENERATE_ABORTS) 2363 #if defined(DEBUG_GENERATE_ABORTS)
2370 if ((ha->iocount > 500) && ((ha->ioco 2364 if ((ha->iocount > 500) && ((ha->iocount % 500) < 3))
2371 goto handled; 2365 goto handled;
2372 #endif 2366 #endif
2373 2367
2374 if (ha->cp_stat[i] == IGNORE) { 2368 if (ha->cp_stat[i] == IGNORE) {
2375 ha->cp_stat[i] = FREE; 2369 ha->cp_stat[i] = FREE;
2376 goto handled; 2370 goto handled;
2377 } else if (ha->cp_stat[i] == LOCKED) 2371 } else if (ha->cp_stat[i] == LOCKED) {
2378 ha->cp_stat[i] = FREE; 2372 ha->cp_stat[i] = FREE;
2379 printk("%s: ihdlr, mbox %d un 2373 printk("%s: ihdlr, mbox %d unlocked, count %d.\n", ha->board_name, i,
2380 ha->iocount); 2374 ha->iocount);
2381 goto handled; 2375 goto handled;
2382 } else if (ha->cp_stat[i] == FREE) { 2376 } else if (ha->cp_stat[i] == FREE) {
2383 printk("%s: ihdlr, mbox %d is 2377 printk("%s: ihdlr, mbox %d is free, count %d.\n", ha->board_name, i,
2384 ha->iocount); 2378 ha->iocount);
2385 goto handled; 2379 goto handled;
2386 } else if (ha->cp_stat[i] == IN_RESET 2380 } else if (ha->cp_stat[i] == IN_RESET)
2387 printk("%s: ihdlr, mbox %d is 2381 printk("%s: ihdlr, mbox %d is in reset.\n", ha->board_name, i);
2388 else if (ha->cp_stat[i] != IN_USE) 2382 else if (ha->cp_stat[i] != IN_USE)
2389 panic("%s: ihdlr, mbox %d, in 2383 panic("%s: ihdlr, mbox %d, invalid cp_stat: %d.\n",
2390 ha->board_name, i, ha-> 2384 ha->board_name, i, ha->cp_stat[i]);
2391 2385
2392 ha->cp_stat[i] = FREE; 2386 ha->cp_stat[i] = FREE;
2393 SCpnt = cpp->SCpnt; 2387 SCpnt = cpp->SCpnt;
2394 2388
2395 if (SCpnt == NULL) 2389 if (SCpnt == NULL)
2396 panic("%s: ihdlr, mbox %d, SC 2390 panic("%s: ihdlr, mbox %d, SCpnt == NULL.\n", ha->board_name, i);
2397 2391
2398 if (SCpnt->host_scribble == NULL) 2392 if (SCpnt->host_scribble == NULL)
2399 panic("%s: ihdlr, mbox %d, pi 2393 panic("%s: ihdlr, mbox %d, pid %ld, SCpnt %p garbled.\n", ha->board_name,
2400 i, SCpnt->serial_number 2394 i, SCpnt->serial_number, SCpnt);
2401 2395
2402 if (*(unsigned int *)SCpnt->host_scri 2396 if (*(unsigned int *)SCpnt->host_scribble != i)
2403 panic("%s: ihdlr, mbox %d, pi 2397 panic("%s: ihdlr, mbox %d, pid %ld, index mismatch %d.\n",
2404 ha->board_name, i, SCpn 2398 ha->board_name, i, SCpnt->serial_number,
2405 *(unsigned int *)SCpnt- 2399 *(unsigned int *)SCpnt->host_scribble);
2406 2400
2407 sync_dma(i, ha); 2401 sync_dma(i, ha);
2408 2402
2409 if (linked_comm && SCpnt->device->que 2403 if (linked_comm && SCpnt->device->queue_depth > 2
2410 && TLDEV(SCpnt->device->type)) 2404 && TLDEV(SCpnt->device->type))
2411 flush_dev(SCpnt->device, blk_ !! 2405 flush_dev(SCpnt->device, SCpnt->request->sector, ha, 1);
2412 2406
2413 tstatus = status_byte(spp->target_sta 2407 tstatus = status_byte(spp->target_status);
2414 2408
2415 #if defined(DEBUG_GENERATE_ERRORS) 2409 #if defined(DEBUG_GENERATE_ERRORS)
2416 if ((ha->iocount > 500) && ((ha->ioco 2410 if ((ha->iocount > 500) && ((ha->iocount % 200) < 2))
2417 spp->adapter_status = 0x01; 2411 spp->adapter_status = 0x01;
2418 #endif 2412 #endif
2419 2413
2420 switch (spp->adapter_status) { 2414 switch (spp->adapter_status) {
2421 case ASOK: /* status OK 2415 case ASOK: /* status OK */
2422 2416
2423 /* Forces a reset if a disk d 2417 /* Forces a reset if a disk drive keeps returning BUSY */
2424 if (tstatus == BUSY && SCpnt- 2418 if (tstatus == BUSY && SCpnt->device->type != TYPE_TAPE)
2425 status = DID_ERROR << 2419 status = DID_ERROR << 16;
2426 2420
2427 /* If there was a bus reset, 2421 /* If there was a bus reset, redo operation on each target */
2428 else if (tstatus != GOOD && S 2422 else if (tstatus != GOOD && SCpnt->device->type == TYPE_DISK
2429 && ha->target_redo[S 2423 && ha->target_redo[SCpnt->device->id][SCpnt->
2430 2424 device->
2431 2425 channel])
2432 status = DID_BUS_BUSY 2426 status = DID_BUS_BUSY << 16;
2433 2427
2434 /* Works around a flaw in scs 2428 /* Works around a flaw in scsi.c */
2435 else if (tstatus == CHECK_CON 2429 else if (tstatus == CHECK_CONDITION
2436 && SCpnt->device->ty 2430 && SCpnt->device->type == TYPE_DISK
2437 && (SCpnt->sense_buf 2431 && (SCpnt->sense_buffer[2] & 0xf) == RECOVERED_ERROR)
2438 status = DID_BUS_BUSY 2432 status = DID_BUS_BUSY << 16;
2439 2433
2440 else 2434 else
2441 status = DID_OK << 16 2435 status = DID_OK << 16;
2442 2436
2443 if (tstatus == GOOD) 2437 if (tstatus == GOOD)
2444 ha->target_redo[SCpnt 2438 ha->target_redo[SCpnt->device->id][SCpnt->device->
2445 2439 channel] = 0;
2446 2440
2447 if (spp->target_status && SCp 2441 if (spp->target_status && SCpnt->device->type == TYPE_DISK &&
2448 (!(tstatus == CHECK_CONDI 2442 (!(tstatus == CHECK_CONDITION && ha->iocount <= 1000 &&
2449 (SCpnt->sense_buffer[2 2443 (SCpnt->sense_buffer[2] & 0xf) == NOT_READY)))
2450 printk("%s: ihdlr, ta 2444 printk("%s: ihdlr, target %d.%d:%d, pid %ld, "
2451 "target_status 2445 "target_status 0x%x, sense key 0x%x.\n",
2452 ha->board_name 2446 ha->board_name,
2453 SCpnt->device- 2447 SCpnt->device->channel, SCpnt->device->id,
2454 SCpnt->device- 2448 SCpnt->device->lun, SCpnt->serial_number,
2455 spp->target_st 2449 spp->target_status, SCpnt->sense_buffer[2]);
2456 2450
2457 ha->target_to[SCpnt->device-> 2451 ha->target_to[SCpnt->device->id][SCpnt->device->channel] = 0;
2458 2452
2459 if (ha->last_retried_pid == S 2453 if (ha->last_retried_pid == SCpnt->serial_number)
2460 ha->retries = 0; 2454 ha->retries = 0;
2461 2455
2462 break; 2456 break;
2463 case ASST: /* Selection 2457 case ASST: /* Selection Time Out */
2464 case 0x02: /* Command Ti 2458 case 0x02: /* Command Time Out */
2465 2459
2466 if (ha->target_to[SCpnt->devi 2460 if (ha->target_to[SCpnt->device->id][SCpnt->device->channel] > 1)
2467 status = DID_ERROR << 2461 status = DID_ERROR << 16;
2468 else { 2462 else {
2469 status = DID_TIME_OUT 2463 status = DID_TIME_OUT << 16;
2470 ha->target_to[SCpnt-> 2464 ha->target_to[SCpnt->device->id][SCpnt->device->
2471 2465 channel]++;
2472 } 2466 }
2473 2467
2474 break; 2468 break;
2475 2469
2476 /* Perform a limited number o 2470 /* Perform a limited number of internal retries */
2477 case 0x03: /* SCSI Bus R 2471 case 0x03: /* SCSI Bus Reset Received */
2478 case 0x04: /* Initial Co 2472 case 0x04: /* Initial Controller Power-up */
2479 2473
2480 for (c = 0; c <= shost->max_c 2474 for (c = 0; c <= shost->max_channel; c++)
2481 for (k = 0; k < shost 2475 for (k = 0; k < shost->max_id; k++)
2482 ha->target_re 2476 ha->target_redo[k][c] = 1;
2483 2477
2484 if (SCpnt->device->type != TY 2478 if (SCpnt->device->type != TYPE_TAPE
2485 && ha->retries < MAX_INTE 2479 && ha->retries < MAX_INTERNAL_RETRIES) {
2486 2480
2487 #if defined(DID_SOFT_ERROR) 2481 #if defined(DID_SOFT_ERROR)
2488 status = DID_SOFT_ERR 2482 status = DID_SOFT_ERROR << 16;
2489 #else 2483 #else
2490 status = DID_BUS_BUSY 2484 status = DID_BUS_BUSY << 16;
2491 #endif 2485 #endif
2492 2486
2493 ha->retries++; 2487 ha->retries++;
2494 ha->last_retried_pid 2488 ha->last_retried_pid = SCpnt->serial_number;
2495 } else 2489 } else
2496 status = DID_ERROR << 2490 status = DID_ERROR << 16;
2497 2491
2498 break; 2492 break;
2499 case 0x05: /* Unexpected 2493 case 0x05: /* Unexpected Bus Phase */
2500 case 0x06: /* Unexpected 2494 case 0x06: /* Unexpected Bus Free */
2501 case 0x07: /* Bus Parity 2495 case 0x07: /* Bus Parity Error */
2502 case 0x08: /* SCSI Hung 2496 case 0x08: /* SCSI Hung */
2503 case 0x09: /* Unexpected 2497 case 0x09: /* Unexpected Message Reject */
2504 case 0x0a: /* SCSI Bus R 2498 case 0x0a: /* SCSI Bus Reset Stuck */
2505 case 0x0b: /* Auto Reque 2499 case 0x0b: /* Auto Request-Sense Failed */
2506 case 0x0c: /* Controller 2500 case 0x0c: /* Controller Ram Parity Error */
2507 default: 2501 default:
2508 status = DID_ERROR << 16; 2502 status = DID_ERROR << 16;
2509 break; 2503 break;
2510 } 2504 }
2511 2505
2512 SCpnt->result = status | spp->target_ 2506 SCpnt->result = status | spp->target_status;
2513 2507
2514 #if defined(DEBUG_INTERRUPT) 2508 #if defined(DEBUG_INTERRUPT)
2515 if (SCpnt->result || do_trace) 2509 if (SCpnt->result || do_trace)
2516 #else 2510 #else
2517 if ((spp->adapter_status != ASOK && h 2511 if ((spp->adapter_status != ASOK && ha->iocount > 1000) ||
2518 (spp->adapter_status != ASOK && 2512 (spp->adapter_status != ASOK &&
2519 spp->adapter_status != ASST && h 2513 spp->adapter_status != ASST && ha->iocount <= 1000) ||
2520 do_trace || msg_byte(spp->target_ 2514 do_trace || msg_byte(spp->target_status))
2521 #endif 2515 #endif
2522 scmd_printk(KERN_INFO, SCpnt, 2516 scmd_printk(KERN_INFO, SCpnt, "ihdlr, mbox %2d, err 0x%x:%x,"
2523 " pid %ld, reg 0x%x, c 2517 " pid %ld, reg 0x%x, count %d.\n",
2524 i, spp->adapter_status 2518 i, spp->adapter_status, spp->target_status,
2525 SCpnt->serial_number, 2519 SCpnt->serial_number, reg, ha->iocount);
2526 2520
2527 unmap_dma(i, ha); 2521 unmap_dma(i, ha);
2528 2522
2529 /* Set the command state to inactive 2523 /* Set the command state to inactive */
2530 SCpnt->host_scribble = NULL; 2524 SCpnt->host_scribble = NULL;
2531 2525
2532 SCpnt->scsi_done(SCpnt); 2526 SCpnt->scsi_done(SCpnt);
2533 2527
2534 if (do_trace) 2528 if (do_trace)
2535 printk("%s: ihdlr, exit, irq 2529 printk("%s: ihdlr, exit, irq %d, count %d.\n", ha->board_name,
2536 irq, ha->ioco 2530 irq, ha->iocount);
2537 2531
2538 handled: 2532 handled:
2539 return IRQ_HANDLED; 2533 return IRQ_HANDLED;
2540 none: 2534 none:
2541 return IRQ_NONE; 2535 return IRQ_NONE;
2542 } 2536 }
2543 2537
2544 static irqreturn_t do_interrupt_handler(int d !! 2538 static irqreturn_t do_interrupt_handler(int irq, void *shap)
2545 { 2539 {
2546 struct Scsi_Host *shost; 2540 struct Scsi_Host *shost;
2547 unsigned int j; 2541 unsigned int j;
2548 unsigned long spin_flags; 2542 unsigned long spin_flags;
2549 irqreturn_t ret; 2543 irqreturn_t ret;
2550 2544
2551 /* Check if the interrupt must be pro 2545 /* Check if the interrupt must be processed by this handler */
2552 if ((j = (unsigned int)((char *)shap 2546 if ((j = (unsigned int)((char *)shap - sha)) >= num_boards)
2553 return IRQ_NONE; 2547 return IRQ_NONE;
2554 shost = sh[j]; 2548 shost = sh[j];
2555 2549
2556 spin_lock_irqsave(shost->host_lock, s 2550 spin_lock_irqsave(shost->host_lock, spin_flags);
2557 ret = ihdlr(shost); !! 2551 ret = ihdlr(irq, shost);
2558 spin_unlock_irqrestore(shost->host_lo 2552 spin_unlock_irqrestore(shost->host_lock, spin_flags);
2559 return ret; 2553 return ret;
2560 } 2554 }
2561 2555
2562 static int eata2x_release(struct Scsi_Host *s 2556 static int eata2x_release(struct Scsi_Host *shost)
2563 { 2557 {
2564 struct hostdata *ha = (struct hostdat 2558 struct hostdata *ha = (struct hostdata *)shost->hostdata;
2565 unsigned int i; 2559 unsigned int i;
2566 2560
2567 for (i = 0; i < shost->can_queue; i++ 2561 for (i = 0; i < shost->can_queue; i++)
2568 kfree((&ha->cp[i])->sglist); 2562 kfree((&ha->cp[i])->sglist);
2569 2563
2570 for (i = 0; i < shost->can_queue; i++ 2564 for (i = 0; i < shost->can_queue; i++)
2571 pci_unmap_single(ha->pdev, ha 2565 pci_unmap_single(ha->pdev, ha->cp[i].cp_dma_addr,
2572 sizeof(struc 2566 sizeof(struct mscp), PCI_DMA_BIDIRECTIONAL);
2573 2567
2574 if (ha->sp_cpu_addr) 2568 if (ha->sp_cpu_addr)
2575 pci_free_consistent(ha->pdev, 2569 pci_free_consistent(ha->pdev, sizeof(struct mssp),
2576 ha->sp_cp 2570 ha->sp_cpu_addr, ha->sp_dma_addr);
2577 2571
2578 free_irq(shost->irq, &sha[ha->board_n 2572 free_irq(shost->irq, &sha[ha->board_number]);
2579 2573
2580 if (shost->dma_channel != NO_DMA) 2574 if (shost->dma_channel != NO_DMA)
2581 free_dma(shost->dma_channel); 2575 free_dma(shost->dma_channel);
2582 2576
2583 release_region(shost->io_port, shost- 2577 release_region(shost->io_port, shost->n_io_port);
2584 scsi_unregister(shost); 2578 scsi_unregister(shost);
2585 return 0; 2579 return 0;
2586 } 2580 }
2587 2581
2588 #include "scsi_module.c" 2582 #include "scsi_module.c"
2589 2583
2590 #ifndef MODULE 2584 #ifndef MODULE
2591 __setup("eata=", option_setup); 2585 __setup("eata=", option_setup);
2592 #endif /* end MODULE 2586 #endif /* end MODULE */
2593 2587
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