diff options
Diffstat (limited to 'drivers/scsi/tmscsim.c')
-rw-r--r-- | drivers/scsi/tmscsim.c | 2693 |
1 files changed, 2693 insertions, 0 deletions
diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c new file mode 100644 index 000000000000..ee9df02efd5b --- /dev/null +++ b/drivers/scsi/tmscsim.c | |||
@@ -0,0 +1,2693 @@ | |||
1 | /************************************************************************ | ||
2 | * FILE NAME : TMSCSIM.C * | ||
3 | * BY : C.L. Huang, ching@tekram.com.tw * | ||
4 | * Description: Device Driver for Tekram DC-390(T) PCI SCSI * | ||
5 | * Bus Master Host Adapter * | ||
6 | * (C)Copyright 1995-1996 Tekram Technology Co., Ltd. * | ||
7 | ************************************************************************ | ||
8 | * (C) Copyright: put under GNU GPL in 10/96 * | ||
9 | * (see Documentation/scsi/tmscsim.txt) * | ||
10 | ************************************************************************ | ||
11 | * $Id: tmscsim.c,v 2.60.2.30 2000/12/20 01:07:12 garloff Exp $ * | ||
12 | * Enhancements and bugfixes by * | ||
13 | * Kurt Garloff <kurt@garloff.de> <garloff@suse.de> * | ||
14 | ************************************************************************ | ||
15 | * HISTORY: * | ||
16 | * * | ||
17 | * REV# DATE NAME DESCRIPTION * | ||
18 | * 1.00 96/04/24 CLH First release * | ||
19 | * 1.01 96/06/12 CLH Fixed bug of Media Change for Removable * | ||
20 | * Device, scan all LUN. Support Pre2.0.10 * | ||
21 | * 1.02 96/06/18 CLH Fixed bug of Command timeout ... * | ||
22 | * 1.03 96/09/25 KG Added tmscsim_proc_info() * | ||
23 | * 1.04 96/10/11 CLH Updating for support KV 2.0.x * | ||
24 | * 1.05 96/10/18 KG Fixed bug in DC390_abort(null ptr deref)* | ||
25 | * 1.06 96/10/25 KG Fixed module support * | ||
26 | * 1.07 96/11/09 KG Fixed tmscsim_proc_info() * | ||
27 | * 1.08 96/11/18 KG Fixed null ptr in DC390_Disconnect() * | ||
28 | * 1.09 96/11/30 KG Added register the allocated IO space * | ||
29 | * 1.10 96/12/05 CLH Modified tmscsim_proc_info(), and reset * | ||
30 | * pending interrupt in DC390_detect() * | ||
31 | * 1.11 97/02/05 KG/CLH Fixeds problem with partitions greater * | ||
32 | * than 1GB * | ||
33 | * 1.12 98/02/15 MJ Rewritten PCI probing * | ||
34 | * 1.13 98/04/08 KG Support for non DC390, __initfunc decls,* | ||
35 | * changed max devs from 10 to 16 * | ||
36 | * 1.14a 98/05/05 KG Dynamic DCB allocation, add-single-dev * | ||
37 | * for LUNs if LUN_SCAN (BIOS) not set * | ||
38 | * runtime config using /proc interface * | ||
39 | * 1.14b 98/05/06 KG eliminated cli (); sti (); spinlocks * | ||
40 | * 1.14c 98/05/07 KG 2.0.x compatibility * | ||
41 | * 1.20a 98/05/07 KG changed names of funcs to be consistent * | ||
42 | * DC390_ (entry points), dc390_ (internal)* | ||
43 | * reworked locking * | ||
44 | * 1.20b 98/05/12 KG bugs: version, kfree, _ctmp * | ||
45 | * debug output * | ||
46 | * 1.20c 98/05/12 KG bugs: kfree, parsing, EEpromDefaults * | ||
47 | * 1.20d 98/05/14 KG bugs: list linkage, clear flag after * | ||
48 | * reset on startup, code cleanup * | ||
49 | * 1.20e 98/05/15 KG spinlock comments, name space cleanup * | ||
50 | * pLastDCB now part of ACB structure * | ||
51 | * added stats, timeout for 2.1, TagQ bug * | ||
52 | * RESET and INQUIRY interface commands * | ||
53 | * 1.20f 98/05/18 KG spinlocks fixes, max_lun fix, free DCBs * | ||
54 | * for missing LUNs, pending int * | ||
55 | * 1.20g 98/05/19 KG Clean up: Avoid short * | ||
56 | * 1.20h 98/05/21 KG Remove AdaptSCSIID, max_lun ... * | ||
57 | * 1.20i 98/05/21 KG Aiiie: Bug with TagQMask * | ||
58 | * 1.20j 98/05/24 KG Handle STAT_BUSY, handle pACB->pLinkDCB * | ||
59 | * == 0 in remove_dev and DoingSRB_Done * | ||
60 | * 1.20k 98/05/25 KG DMA_INT (experimental) * | ||
61 | * 1.20l 98/05/27 KG remove DMA_INT; DMA_IDLE cmds added; * | ||
62 | * 1.20m 98/06/10 KG glitch configurable; made some global * | ||
63 | * vars part of ACB; use DC390_readX * | ||
64 | * 1.20n 98/06/11 KG startup params * | ||
65 | * 1.20o 98/06/15 KG added TagMaxNum to boot/module params * | ||
66 | * Device Nr -> Idx, TagMaxNum power of 2 * | ||
67 | * 1.20p 98/06/17 KG Docu updates. Reset depends on settings * | ||
68 | * pci_set_master added; 2.0.xx: pcibios_* * | ||
69 | * used instead of MechNum things ... * | ||
70 | * 1.20q 98/06/23 KG Changed defaults. Added debug code for * | ||
71 | * removable media and fixed it. TagMaxNum * | ||
72 | * fixed for DC390. Locking: ACB, DRV for * | ||
73 | * better IRQ sharing. Spelling: Queueing * | ||
74 | * Parsing and glitch_cfg changes. Display * | ||
75 | * real SyncSpeed value. Made DisConn * | ||
76 | * functional (!) * | ||
77 | * 1.20r 98/06/30 KG Debug macros, allow disabling DsCn, set * | ||
78 | * BIT4 in CtrlR4, EN_PAGE_INT, 2.0 module * | ||
79 | * param -1 fixed. * | ||
80 | * 1.20s 98/08/20 KG Debug info on abort(), try to check PCI,* | ||
81 | * phys_to_bus instead of phys_to_virt, * | ||
82 | * fixed sel. process, fixed locking, * | ||
83 | * added MODULE_XXX infos, changed IRQ * | ||
84 | * request flags, disable DMA_INT * | ||
85 | * 1.20t 98/09/07 KG TagQ report fixed; Write Erase DMA Stat;* | ||
86 | * initfunc -> __init; better abort; * | ||
87 | * Timeout for XFER_DONE & BLAST_COMPLETE; * | ||
88 | * Allow up to 33 commands being processed * | ||
89 | * 2.0a 98/10/14 KG Max Cmnds back to 17. DMA_Stat clearing * | ||
90 | * all flags. Clear within while() loops * | ||
91 | * in DataIn_0/Out_0. Null ptr in dumpinfo * | ||
92 | * for pSRB==0. Better locking during init.* | ||
93 | * bios_param() now respects part. table. * | ||
94 | * 2.0b 98/10/24 KG Docu fixes. Timeout Msg in DMA Blast. * | ||
95 | * Disallow illegal idx in INQUIRY/REMOVE * | ||
96 | * 2.0c 98/11/19 KG Cleaned up detect/init for SMP boxes, * | ||
97 | * Write Erase DMA (1.20t) caused problems * | ||
98 | * 2.0d 98/12/25 KG Christmas release ;-) Message handling * | ||
99 | * completely reworked. Handle target ini- * | ||
100 | * tiated SDTR correctly. * | ||
101 | * 2.0d1 99/01/25 KG Try to handle RESTORE_PTR * | ||
102 | * 2.0d2 99/02/08 KG Check for failure of kmalloc, correct * | ||
103 | * inclusion of scsicam.h, DelayReset * | ||
104 | * 2.0d3 99/05/31 KG DRIVER_OK -> DID_OK, DID_NO_CONNECT, * | ||
105 | * detect Target mode and warn. * | ||
106 | * pcmd->result handling cleaned up. * | ||
107 | * 2.0d4 99/06/01 KG Cleaned selection process. Found bug * | ||
108 | * which prevented more than 16 tags. Now: * | ||
109 | * 24. SDTR cleanup. Cleaner multi-LUN * | ||
110 | * handling. Don't modify ControlRegs/FIFO * | ||
111 | * when connected. * | ||
112 | * 2.0d5 99/06/01 KG Clear DevID, Fix INQUIRY after cfg chg. * | ||
113 | * 2.0d6 99/06/02 KG Added ADD special command to allow cfg. * | ||
114 | * before detection. Reset SYNC_NEGO_DONE * | ||
115 | * after a bus reset. * | ||
116 | * 2.0d7 99/06/03 KG Fixed bugs wrt add,remove commands * | ||
117 | * 2.0d8 99/06/04 KG Removed copying of cmnd into CmdBlock. * | ||
118 | * Fixed Oops in _release(). * | ||
119 | * 2.0d9 99/06/06 KG Also tag queue INQUIRY, T_U_R, ... * | ||
120 | * Allow arb. no. of Tagged Cmnds. Max 32 * | ||
121 | * 2.0d1099/06/20 KG TagMaxNo changes now honoured! Queueing * | ||
122 | * clearified (renamed ..) TagMask handling* | ||
123 | * cleaned. * | ||
124 | * 2.0d1199/06/28 KG cmd->result now identical to 2.0d2 * | ||
125 | * 2.0d1299/07/04 KG Changed order of processing in IRQ * | ||
126 | * 2.0d1399/07/05 KG Don't update DCB fields if removed * | ||
127 | * 2.0d1499/07/05 KG remove_dev: Move kfree() to the end * | ||
128 | * 2.0d1599/07/12 KG use_new_eh_code: 0, ULONG -> UINT where * | ||
129 | * appropriate * | ||
130 | * 2.0d1699/07/13 KG Reenable StartSCSI interrupt, Retry msg * | ||
131 | * 2.0d1799/07/15 KG Remove debug msg. Disable recfg. when * | ||
132 | * there are queued cmnds * | ||
133 | * 2.0d1899/07/18 KG Selection timeout: Don't requeue * | ||
134 | * 2.0d1999/07/18 KG Abort: Only call scsi_done if dequeued * | ||
135 | * 2.0d2099/07/19 KG Rst_Detect: DoingSRB_Done * | ||
136 | * 2.0d2199/08/15 KG dev_id for request/free_irq, cmnd[0] for* | ||
137 | * RETRY, SRBdone does DID_ABORT for the * | ||
138 | * cmd passed by DC390_reset() * | ||
139 | * 2.0d2299/08/25 KG dev_id fixed. can_queue: 42 * | ||
140 | * 2.0d2399/08/25 KG Removed some debugging code. dev_id * | ||
141 | * now is set to pACB. Use u8,u16,u32. * | ||
142 | * 2.0d2499/11/14 KG Unreg. I/O if failed IRQ alloc. Call * | ||
143 | * done () w/ DID_BAD_TARGET in case of * | ||
144 | * missing DCB. We are old EH!! * | ||
145 | * 2.0d2500/01/15 KG 2.3.3x compat from Andreas Schultz * | ||
146 | * set unique_id. Disable RETRY message. * | ||
147 | * 2.0d2600/01/29 KG Go to new EH. * | ||
148 | * 2.0d2700/01/31 KG ... but maintain 2.0 compat. * | ||
149 | * and fix DCB freeing * | ||
150 | * 2.0d2800/02/14 KG Queue statistics fixed, dump special cmd* | ||
151 | * Waiting_Timer for failed StartSCSI * | ||
152 | * New EH: Don't return cmnds to ML on RST * | ||
153 | * Use old EH (don't have new EH fns yet) * | ||
154 | * Reset: Unlock, but refuse to queue * | ||
155 | * 2.3 __setup function * | ||
156 | * 2.0e 00/05/22 KG Return residual for 2.3 * | ||
157 | * 2.0e1 00/05/25 KG Compile fixes for 2.3.99 * | ||
158 | * 2.0e2 00/05/27 KG Jeff Garzik's pci_enable_device() * | ||
159 | * 2.0e3 00/09/29 KG Some 2.4 changes. Don't try Sync Nego * | ||
160 | * before INQUIRY has reported ability. * | ||
161 | * Recognise INQUIRY as scanning command. * | ||
162 | * 2.0e4 00/10/13 KG Allow compilation into 2.4 kernel * | ||
163 | * 2.0e5 00/11/17 KG Store Inq.flags in DCB * | ||
164 | * 2.0e6 00/11/22 KG 2.4 init function (Thx to O.Schumann) * | ||
165 | * 2.4 PCI device table (Thx to A.Richter) * | ||
166 | * 2.0e7 00/11/28 KG Allow overriding of BIOS settings * | ||
167 | * 2.0f 00/12/20 KG Handle failed INQUIRYs during scan * | ||
168 | * 2.1a 03/11/29 GL, KG Initial fixing for 2.6. Convert to * | ||
169 | * use the current PCI-mapping API, update * | ||
170 | * command-queuing. * | ||
171 | * 2.1b 04/04/13 GL Fix for 64-bit platforms * | ||
172 | * 2.1b1 04/01/31 GL (applied 05.04) Remove internal * | ||
173 | * command-queuing. * | ||
174 | * 2.1b2 04/02/01 CH (applied 05.04) Fix error-handling * | ||
175 | * 2.1c 04/05/23 GL Update to use the new pci_driver API, * | ||
176 | * some scsi EH updates, more cleanup. * | ||
177 | * 2.1d 04/05/27 GL Moved setting of scan_devices to * | ||
178 | * slave_alloc/_configure/_destroy, as * | ||
179 | * suggested by CH. * | ||
180 | ***********************************************************************/ | ||
181 | |||
182 | /* DEBUG options */ | ||
183 | //#define DC390_DEBUG0 | ||
184 | //#define DC390_DEBUG1 | ||
185 | //#define DC390_DCBDEBUG | ||
186 | //#define DC390_PARSEDEBUG | ||
187 | //#define DC390_REMOVABLEDEBUG | ||
188 | //#define DC390_LOCKDEBUG | ||
189 | |||
190 | //#define NOP do{}while(0) | ||
191 | #define C_NOP | ||
192 | |||
193 | /* Debug definitions */ | ||
194 | #ifdef DC390_DEBUG0 | ||
195 | # define DEBUG0(x) x | ||
196 | #else | ||
197 | # define DEBUG0(x) C_NOP | ||
198 | #endif | ||
199 | #ifdef DC390_DEBUG1 | ||
200 | # define DEBUG1(x) x | ||
201 | #else | ||
202 | # define DEBUG1(x) C_NOP | ||
203 | #endif | ||
204 | #ifdef DC390_DCBDEBUG | ||
205 | # define DCBDEBUG(x) x | ||
206 | #else | ||
207 | # define DCBDEBUG(x) C_NOP | ||
208 | #endif | ||
209 | #ifdef DC390_PARSEDEBUG | ||
210 | # define PARSEDEBUG(x) x | ||
211 | #else | ||
212 | # define PARSEDEBUG(x) C_NOP | ||
213 | #endif | ||
214 | #ifdef DC390_REMOVABLEDEBUG | ||
215 | # define REMOVABLEDEBUG(x) x | ||
216 | #else | ||
217 | # define REMOVABLEDEBUG(x) C_NOP | ||
218 | #endif | ||
219 | #define DCBDEBUG1(x) C_NOP | ||
220 | |||
221 | #include <linux/config.h> | ||
222 | #include <linux/module.h> | ||
223 | #include <linux/delay.h> | ||
224 | #include <linux/signal.h> | ||
225 | #include <linux/sched.h> | ||
226 | #include <linux/errno.h> | ||
227 | #include <linux/kernel.h> | ||
228 | #include <linux/ioport.h> | ||
229 | #include <linux/pci.h> | ||
230 | #include <linux/proc_fs.h> | ||
231 | #include <linux/string.h> | ||
232 | #include <linux/mm.h> | ||
233 | #include <linux/blkdev.h> | ||
234 | #include <linux/timer.h> | ||
235 | #include <linux/interrupt.h> | ||
236 | #include <linux/init.h> | ||
237 | #include <linux/spinlock.h> | ||
238 | #include <asm/io.h> | ||
239 | |||
240 | #include <scsi/scsi.h> | ||
241 | #include <scsi/scsi_cmnd.h> | ||
242 | #include <scsi/scsi_device.h> | ||
243 | #include <scsi/scsi_host.h> | ||
244 | #include <scsi/scsicam.h> | ||
245 | #include <scsi/scsi_tcq.h> | ||
246 | |||
247 | |||
248 | #define DC390_BANNER "Tekram DC390/AM53C974" | ||
249 | #define DC390_VERSION "2.1d 2004-05-27" | ||
250 | |||
251 | #define PCI_DEVICE_ID_AMD53C974 PCI_DEVICE_ID_AMD_SCSI | ||
252 | |||
253 | #include "tmscsim.h" | ||
254 | |||
255 | |||
256 | static void dc390_DataOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
257 | static void dc390_DataIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
258 | static void dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
259 | static void dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
260 | static void dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
261 | static void dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
262 | static void dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
263 | static void dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
264 | static void dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
265 | static void dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
266 | static void dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
267 | static void dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
268 | static void dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
269 | static void dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); | ||
270 | |||
271 | static void dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB ); | ||
272 | static void dc390_Disconnect( struct dc390_acb* pACB ); | ||
273 | static void dc390_Reselect( struct dc390_acb* pACB ); | ||
274 | static void dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB ); | ||
275 | static void dc390_ScsiRstDetect( struct dc390_acb* pACB ); | ||
276 | static void dc390_EnableMsgOut_Abort(struct dc390_acb*, struct dc390_srb*); | ||
277 | static void dc390_dumpinfo(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB); | ||
278 | static void dc390_ResetDevParam(struct dc390_acb* pACB); | ||
279 | |||
280 | static u32 dc390_laststatus = 0; | ||
281 | static u8 dc390_adapterCnt = 0; | ||
282 | |||
283 | /* Startup values, to be overriden on the commandline */ | ||
284 | static int tmscsim[] = {-2, -2, -2, -2, -2, -2}; | ||
285 | |||
286 | module_param_array(tmscsim, int, NULL, 0); | ||
287 | MODULE_PARM_DESC(tmscsim, "Host SCSI ID, Speed (0=10MHz), Device Flags, Adapter Flags, Max Tags (log2(tags)-1), DelayReset (s)"); | ||
288 | MODULE_AUTHOR("C.L. Huang / Kurt Garloff"); | ||
289 | MODULE_DESCRIPTION("SCSI host adapter driver for Tekram DC390 and other AMD53C974A based PCI SCSI adapters"); | ||
290 | MODULE_LICENSE("GPL"); | ||
291 | MODULE_SUPPORTED_DEVICE("sd,sr,sg,st"); | ||
292 | |||
293 | static void *dc390_phase0[]={ | ||
294 | dc390_DataOut_0, | ||
295 | dc390_DataIn_0, | ||
296 | dc390_Command_0, | ||
297 | dc390_Status_0, | ||
298 | dc390_Nop_0, | ||
299 | dc390_Nop_0, | ||
300 | dc390_MsgOut_0, | ||
301 | dc390_MsgIn_0, | ||
302 | dc390_Nop_1 | ||
303 | }; | ||
304 | |||
305 | static void *dc390_phase1[]={ | ||
306 | dc390_DataOutPhase, | ||
307 | dc390_DataInPhase, | ||
308 | dc390_CommandPhase, | ||
309 | dc390_StatusPhase, | ||
310 | dc390_Nop_0, | ||
311 | dc390_Nop_0, | ||
312 | dc390_MsgOutPhase, | ||
313 | dc390_MsgInPhase, | ||
314 | dc390_Nop_1 | ||
315 | }; | ||
316 | |||
317 | #ifdef DC390_DEBUG1 | ||
318 | static char* dc390_p0_str[] = { | ||
319 | "dc390_DataOut_0", | ||
320 | "dc390_DataIn_0", | ||
321 | "dc390_Command_0", | ||
322 | "dc390_Status_0", | ||
323 | "dc390_Nop_0", | ||
324 | "dc390_Nop_0", | ||
325 | "dc390_MsgOut_0", | ||
326 | "dc390_MsgIn_0", | ||
327 | "dc390_Nop_1" | ||
328 | }; | ||
329 | |||
330 | static char* dc390_p1_str[] = { | ||
331 | "dc390_DataOutPhase", | ||
332 | "dc390_DataInPhase", | ||
333 | "dc390_CommandPhase", | ||
334 | "dc390_StatusPhase", | ||
335 | "dc390_Nop_0", | ||
336 | "dc390_Nop_0", | ||
337 | "dc390_MsgOutPhase", | ||
338 | "dc390_MsgInPhase", | ||
339 | "dc390_Nop_1" | ||
340 | }; | ||
341 | #endif | ||
342 | |||
343 | static u8 dc390_eepromBuf[MAX_ADAPTER_NUM][EE_LEN]; | ||
344 | static u8 dc390_clock_period1[] = {4, 5, 6, 7, 8, 10, 13, 20}; | ||
345 | static u8 dc390_clock_speed[] = {100,80,67,57,50, 40, 31, 20}; | ||
346 | |||
347 | /*********************************************************************** | ||
348 | * Functions for the management of the internal structures | ||
349 | * (DCBs, SRBs, Queueing) | ||
350 | * | ||
351 | **********************************************************************/ | ||
352 | static struct dc390_dcb __inline__ *dc390_findDCB ( struct dc390_acb* pACB, u8 id, u8 lun) | ||
353 | { | ||
354 | struct dc390_dcb* pDCB = pACB->pLinkDCB; if (!pDCB) return NULL; | ||
355 | while (pDCB->TargetID != id || pDCB->TargetLUN != lun) | ||
356 | { | ||
357 | pDCB = pDCB->pNextDCB; | ||
358 | if (pDCB == pACB->pLinkDCB) | ||
359 | return NULL; | ||
360 | } | ||
361 | DCBDEBUG1( printk (KERN_DEBUG "DCB %p (%02x,%02x) found.\n", \ | ||
362 | pDCB, pDCB->TargetID, pDCB->TargetLUN)); | ||
363 | return pDCB; | ||
364 | } | ||
365 | |||
366 | /* Insert SRB oin top of free list */ | ||
367 | static __inline__ void dc390_Free_insert (struct dc390_acb* pACB, struct dc390_srb* pSRB) | ||
368 | { | ||
369 | DEBUG0(printk ("DC390: Free SRB %p\n", pSRB)); | ||
370 | pSRB->pNextSRB = pACB->pFreeSRB; | ||
371 | pACB->pFreeSRB = pSRB; | ||
372 | } | ||
373 | |||
374 | static __inline__ void dc390_Going_append (struct dc390_dcb* pDCB, struct dc390_srb* pSRB) | ||
375 | { | ||
376 | pDCB->GoingSRBCnt++; | ||
377 | DEBUG0(printk("DC390: Append SRB %p to Going\n", pSRB)); | ||
378 | /* Append to the list of Going commands */ | ||
379 | if( pDCB->pGoingSRB ) | ||
380 | pDCB->pGoingLast->pNextSRB = pSRB; | ||
381 | else | ||
382 | pDCB->pGoingSRB = pSRB; | ||
383 | |||
384 | pDCB->pGoingLast = pSRB; | ||
385 | /* No next one in sent list */ | ||
386 | pSRB->pNextSRB = NULL; | ||
387 | } | ||
388 | |||
389 | static __inline__ void dc390_Going_remove (struct dc390_dcb* pDCB, struct dc390_srb* pSRB) | ||
390 | { | ||
391 | DEBUG0(printk("DC390: Remove SRB %p from Going\n", pSRB)); | ||
392 | if (pSRB == pDCB->pGoingSRB) | ||
393 | pDCB->pGoingSRB = pSRB->pNextSRB; | ||
394 | else | ||
395 | { | ||
396 | struct dc390_srb* psrb = pDCB->pGoingSRB; | ||
397 | while (psrb && psrb->pNextSRB != pSRB) | ||
398 | psrb = psrb->pNextSRB; | ||
399 | if (!psrb) | ||
400 | { printk (KERN_ERR "DC390: Remove non-ex. SRB %p from Going!\n", pSRB); return; } | ||
401 | psrb->pNextSRB = pSRB->pNextSRB; | ||
402 | if (pSRB == pDCB->pGoingLast) | ||
403 | pDCB->pGoingLast = psrb; | ||
404 | } | ||
405 | pDCB->GoingSRBCnt--; | ||
406 | } | ||
407 | |||
408 | static struct scatterlist* dc390_sg_build_single(struct scatterlist *sg, void *addr, unsigned int length) | ||
409 | { | ||
410 | memset(sg, 0, sizeof(struct scatterlist)); | ||
411 | sg->page = virt_to_page(addr); | ||
412 | sg->length = length; | ||
413 | sg->offset = (unsigned long)addr & ~PAGE_MASK; | ||
414 | return sg; | ||
415 | } | ||
416 | |||
417 | /* Create pci mapping */ | ||
418 | static int dc390_pci_map (struct dc390_srb* pSRB) | ||
419 | { | ||
420 | int error = 0; | ||
421 | struct scsi_cmnd *pcmd = pSRB->pcmd; | ||
422 | struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev; | ||
423 | dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp)); | ||
424 | |||
425 | /* Map sense buffer */ | ||
426 | if (pSRB->SRBFlag & AUTO_REQSENSE) { | ||
427 | pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->sense_buffer, sizeof(pcmd->sense_buffer)); | ||
428 | pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1, | ||
429 | DMA_FROM_DEVICE); | ||
430 | cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList); | ||
431 | |||
432 | /* TODO: error handling */ | ||
433 | if (pSRB->SGcount != 1) | ||
434 | error = 1; | ||
435 | DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __FUNCTION__, pcmd->sense_buffer, cmdp->saved_dma_handle)); | ||
436 | /* Map SG list */ | ||
437 | } else if (pcmd->use_sg) { | ||
438 | pSRB->pSegmentList = (struct scatterlist *) pcmd->request_buffer; | ||
439 | pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, pcmd->use_sg, | ||
440 | pcmd->sc_data_direction); | ||
441 | /* TODO: error handling */ | ||
442 | if (!pSRB->SGcount) | ||
443 | error = 1; | ||
444 | DEBUG1(printk("%s(): Mapped SG %p with %d (%d) elements\n",\ | ||
445 | __FUNCTION__, pcmd->request_buffer, pSRB->SGcount, pcmd->use_sg)); | ||
446 | /* Map single segment */ | ||
447 | } else if (pcmd->request_buffer && pcmd->request_bufflen) { | ||
448 | pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->request_buffer, pcmd->request_bufflen); | ||
449 | pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1, | ||
450 | pcmd->sc_data_direction); | ||
451 | cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList); | ||
452 | |||
453 | /* TODO: error handling */ | ||
454 | if (pSRB->SGcount != 1) | ||
455 | error = 1; | ||
456 | DEBUG1(printk("%s(): Mapped request buffer %p at %x\n", __FUNCTION__, pcmd->request_buffer, cmdp->saved_dma_handle)); | ||
457 | /* No mapping !? */ | ||
458 | } else | ||
459 | pSRB->SGcount = 0; | ||
460 | |||
461 | return error; | ||
462 | } | ||
463 | |||
464 | /* Remove pci mapping */ | ||
465 | static void dc390_pci_unmap (struct dc390_srb* pSRB) | ||
466 | { | ||
467 | struct scsi_cmnd *pcmd = pSRB->pcmd; | ||
468 | struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev; | ||
469 | DEBUG1(dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp))); | ||
470 | |||
471 | if (pSRB->SRBFlag) { | ||
472 | pci_unmap_sg(pdev, &pSRB->Segmentx, 1, DMA_FROM_DEVICE); | ||
473 | DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle)); | ||
474 | } else if (pcmd->use_sg) { | ||
475 | pci_unmap_sg(pdev, pcmd->request_buffer, pcmd->use_sg, pcmd->sc_data_direction); | ||
476 | DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n", __FUNCTION__, pcmd->request_buffer, pcmd->use_sg)); | ||
477 | } else if (pcmd->request_buffer && pcmd->request_bufflen) { | ||
478 | pci_unmap_sg(pdev, &pSRB->Segmentx, 1, pcmd->sc_data_direction); | ||
479 | DEBUG1(printk("%s(): Unmapped request buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle)); | ||
480 | } | ||
481 | } | ||
482 | |||
483 | static void __inline__ | ||
484 | dc390_freetag (struct dc390_dcb* pDCB, struct dc390_srb* pSRB) | ||
485 | { | ||
486 | if (pSRB->TagNumber != SCSI_NO_TAG) { | ||
487 | pDCB->TagMask &= ~(1 << pSRB->TagNumber); /* free tag mask */ | ||
488 | pSRB->TagNumber = SCSI_NO_TAG; | ||
489 | } | ||
490 | } | ||
491 | |||
492 | |||
493 | static int | ||
494 | dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB ) | ||
495 | { | ||
496 | struct scsi_cmnd *scmd = pSRB->pcmd; | ||
497 | struct scsi_device *sdev = scmd->device; | ||
498 | u8 cmd, disc_allowed, try_sync_nego; | ||
499 | char tag[2]; | ||
500 | |||
501 | pSRB->ScsiPhase = SCSI_NOP0; | ||
502 | |||
503 | if (pACB->Connected) | ||
504 | { | ||
505 | // Should not happen normally | ||
506 | printk (KERN_WARNING "DC390: Can't select when connected! (%08x,%02x)\n", | ||
507 | pSRB->SRBState, pSRB->SRBFlag); | ||
508 | pSRB->SRBState = SRB_READY; | ||
509 | pACB->SelConn++; | ||
510 | return 1; | ||
511 | } | ||
512 | if (time_before (jiffies, pACB->pScsiHost->last_reset)) | ||
513 | { | ||
514 | DEBUG0(printk ("DC390: We were just reset and don't accept commands yet!\n")); | ||
515 | return 1; | ||
516 | } | ||
517 | /* KG: Moved pci mapping here */ | ||
518 | dc390_pci_map(pSRB); | ||
519 | /* TODO: error handling */ | ||
520 | DC390_write8 (Scsi_Dest_ID, pDCB->TargetID); | ||
521 | DC390_write8 (Sync_Period, pDCB->SyncPeriod); | ||
522 | DC390_write8 (Sync_Offset, pDCB->SyncOffset); | ||
523 | DC390_write8 (CtrlReg1, pDCB->CtrlR1); | ||
524 | DC390_write8 (CtrlReg3, pDCB->CtrlR3); | ||
525 | DC390_write8 (CtrlReg4, pDCB->CtrlR4); | ||
526 | DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); /* Flush FIFO */ | ||
527 | DEBUG1(printk (KERN_INFO "DC390: Start SCSI command: %02x (Sync:%02x)\n",\ | ||
528 | scmd->cmnd[0], pDCB->SyncMode)); | ||
529 | |||
530 | /* Don't disconnect on AUTO_REQSENSE, cause it might be an | ||
531 | * Contingent Allegiance Condition (6.6), where no tags should be used. | ||
532 | * All other have to be allowed to disconnect to prevent Incorrect | ||
533 | * Initiator Connection (6.8.2/6.5.2) */ | ||
534 | /* Changed KG, 99/06/06 */ | ||
535 | if (! (pSRB->SRBFlag & AUTO_REQSENSE)) | ||
536 | disc_allowed = pDCB->DevMode & EN_DISCONNECT_; | ||
537 | else | ||
538 | disc_allowed = 0; | ||
539 | |||
540 | if ((pDCB->SyncMode & SYNC_ENABLE) && pDCB->TargetLUN == 0 && sdev->sdtr && | ||
541 | (((scmd->cmnd[0] == REQUEST_SENSE || (pSRB->SRBFlag & AUTO_REQSENSE)) && | ||
542 | !(pDCB->SyncMode & SYNC_NEGO_DONE)) || scmd->cmnd[0] == INQUIRY)) | ||
543 | try_sync_nego = 1; | ||
544 | else | ||
545 | try_sync_nego = 0; | ||
546 | |||
547 | pSRB->MsgCnt = 0; | ||
548 | cmd = SEL_W_ATN; | ||
549 | DC390_write8 (ScsiFifo, IDENTIFY(disc_allowed, pDCB->TargetLUN)); | ||
550 | /* Change 99/05/31: Don't use tags when not disconnecting (BUSY) */ | ||
551 | if ((pDCB->SyncMode & EN_TAG_QUEUEING) && disc_allowed && scsi_populate_tag_msg(scmd, tag)) { | ||
552 | DC390_write8(ScsiFifo, tag[0]); | ||
553 | pDCB->TagMask |= 1 << tag[1]; | ||
554 | pSRB->TagNumber = tag[1]; | ||
555 | DC390_write8(ScsiFifo, tag[1]); | ||
556 | DEBUG1(printk(KERN_INFO "DC390: Select w/DisCn for Cmd %li (SRB %p), block tag %02x\n", scmd->pid, pSRB, tag[1])); | ||
557 | cmd = SEL_W_ATN3; | ||
558 | } else { | ||
559 | /* No TagQ */ | ||
560 | //no_tag: | ||
561 | DEBUG1(printk(KERN_INFO "DC390: Select w%s/DisCn for Cmd %li (SRB %p), No TagQ\n", disc_allowed ? "" : "o", scmd->pid, pSRB)); | ||
562 | } | ||
563 | |||
564 | pSRB->SRBState = SRB_START_; | ||
565 | |||
566 | if (try_sync_nego) | ||
567 | { | ||
568 | u8 Sync_Off = pDCB->SyncOffset; | ||
569 | DEBUG0(printk (KERN_INFO "DC390: NEW Sync Nego code triggered (%i %i)\n", pDCB->TargetID, pDCB->TargetLUN)); | ||
570 | pSRB->MsgOutBuf[0] = EXTENDED_MESSAGE; | ||
571 | pSRB->MsgOutBuf[1] = 3; | ||
572 | pSRB->MsgOutBuf[2] = EXTENDED_SDTR; | ||
573 | pSRB->MsgOutBuf[3] = pDCB->NegoPeriod; | ||
574 | if (!(Sync_Off & 0x0f)) Sync_Off = SYNC_NEGO_OFFSET; | ||
575 | pSRB->MsgOutBuf[4] = Sync_Off; | ||
576 | pSRB->MsgCnt = 5; | ||
577 | //pSRB->SRBState = SRB_MSGOUT_; | ||
578 | pSRB->SRBState |= DO_SYNC_NEGO; | ||
579 | cmd = SEL_W_ATN_STOP; | ||
580 | } | ||
581 | |||
582 | /* Command is written in CommandPhase, if SEL_W_ATN_STOP ... */ | ||
583 | if (cmd != SEL_W_ATN_STOP) | ||
584 | { | ||
585 | if( pSRB->SRBFlag & AUTO_REQSENSE ) | ||
586 | { | ||
587 | DC390_write8 (ScsiFifo, REQUEST_SENSE); | ||
588 | DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5); | ||
589 | DC390_write8 (ScsiFifo, 0); | ||
590 | DC390_write8 (ScsiFifo, 0); | ||
591 | DC390_write8 (ScsiFifo, sizeof(scmd->sense_buffer)); | ||
592 | DC390_write8 (ScsiFifo, 0); | ||
593 | DEBUG1(printk (KERN_DEBUG "DC390: AutoReqSense !\n")); | ||
594 | } | ||
595 | else /* write cmnd to bus */ | ||
596 | { | ||
597 | u8 *ptr; u8 i; | ||
598 | ptr = (u8 *)scmd->cmnd; | ||
599 | for (i = 0; i < scmd->cmd_len; i++) | ||
600 | DC390_write8 (ScsiFifo, *(ptr++)); | ||
601 | } | ||
602 | } | ||
603 | DEBUG0(if (pACB->pActiveDCB) \ | ||
604 | printk (KERN_WARNING "DC390: ActiveDCB != 0\n")); | ||
605 | DEBUG0(if (pDCB->pActiveSRB) \ | ||
606 | printk (KERN_WARNING "DC390: ActiveSRB != 0\n")); | ||
607 | //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); | ||
608 | if (DC390_read8 (Scsi_Status) & INTERRUPT) | ||
609 | { | ||
610 | dc390_freetag (pDCB, pSRB); | ||
611 | DEBUG0(printk ("DC390: Interrupt during Start SCSI (pid %li, target %02i-%02i)\n", | ||
612 | scmd->pid, scmd->device->id, scmd->device->lun)); | ||
613 | pSRB->SRBState = SRB_READY; | ||
614 | //DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); | ||
615 | pACB->SelLost++; | ||
616 | return 1; | ||
617 | } | ||
618 | DC390_write8 (ScsiCmd, cmd); | ||
619 | pACB->pActiveDCB = pDCB; | ||
620 | pDCB->pActiveSRB = pSRB; | ||
621 | pACB->Connected = 1; | ||
622 | pSRB->ScsiPhase = SCSI_NOP1; | ||
623 | return 0; | ||
624 | } | ||
625 | |||
626 | //#define DMA_INT EN_DMA_INT /*| EN_PAGE_INT*/ | ||
627 | #define DMA_INT 0 | ||
628 | |||
629 | #if DMA_INT | ||
630 | /* This is similar to AM53C974.c ... */ | ||
631 | static u8 | ||
632 | dc390_dma_intr (struct dc390_acb* pACB) | ||
633 | { | ||
634 | struct dc390_srb* pSRB; | ||
635 | u8 dstate; | ||
636 | DEBUG0(u16 pstate; struct pci_dev *pdev = pACB->pdev); | ||
637 | |||
638 | DEBUG0(pci_read_config_word(pdev, PCI_STATUS, &pstate)); | ||
639 | DEBUG0(if (pstate & (PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY))\ | ||
640 | { printk(KERN_WARNING "DC390: PCI state = %04x!\n", pstate); \ | ||
641 | pci_write_config_word(pdev, PCI_STATUS, (PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY));}); | ||
642 | |||
643 | dstate = DC390_read8 (DMA_Status); | ||
644 | |||
645 | if (! pACB->pActiveDCB || ! pACB->pActiveDCB->pActiveSRB) return dstate; | ||
646 | else pSRB = pACB->pActiveDCB->pActiveSRB; | ||
647 | |||
648 | if (dstate & (DMA_XFER_ABORT | DMA_XFER_ERROR | POWER_DOWN | PCI_MS_ABORT)) | ||
649 | { | ||
650 | printk (KERN_ERR "DC390: DMA error (%02x)!\n", dstate); | ||
651 | return dstate; | ||
652 | } | ||
653 | if (dstate & DMA_XFER_DONE) | ||
654 | { | ||
655 | u32 residual, xferCnt; int ctr = 6000000; | ||
656 | if (! (DC390_read8 (DMA_Cmd) & READ_DIRECTION)) | ||
657 | { | ||
658 | do | ||
659 | { | ||
660 | DEBUG1(printk (KERN_DEBUG "DC390: read residual bytes ... \n")); | ||
661 | dstate = DC390_read8 (DMA_Status); | ||
662 | residual = DC390_read8 (CtcReg_Low) | DC390_read8 (CtcReg_Mid) << 8 | | ||
663 | DC390_read8 (CtcReg_High) << 16; | ||
664 | residual += DC390_read8 (Current_Fifo) & 0x1f; | ||
665 | } while (residual && ! (dstate & SCSI_INTERRUPT) && --ctr); | ||
666 | if (!ctr) printk (KERN_CRIT "DC390: dma_intr: DMA aborted unfinished: %06x bytes remain!!\n", DC390_read32 (DMA_Wk_ByteCntr)); | ||
667 | /* residual = ... */ | ||
668 | } | ||
669 | else | ||
670 | residual = 0; | ||
671 | |||
672 | /* ??? */ | ||
673 | |||
674 | xferCnt = pSRB->SGToBeXferLen - residual; | ||
675 | pSRB->SGBusAddr += xferCnt; | ||
676 | pSRB->TotalXferredLen += xferCnt; | ||
677 | pSRB->SGToBeXferLen = residual; | ||
678 | # ifdef DC390_DEBUG0 | ||
679 | printk (KERN_INFO "DC390: DMA: residual = %i, xfer = %i\n", | ||
680 | (unsigned int)residual, (unsigned int)xferCnt); | ||
681 | # endif | ||
682 | |||
683 | DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); | ||
684 | } | ||
685 | dc390_laststatus &= ~0xff000000; dc390_laststatus |= dstate << 24; | ||
686 | return dstate; | ||
687 | } | ||
688 | #endif | ||
689 | |||
690 | |||
691 | static void __inline__ | ||
692 | dc390_InvalidCmd(struct dc390_acb* pACB) | ||
693 | { | ||
694 | if (pACB->pActiveDCB->pActiveSRB->SRBState & (SRB_START_ | SRB_MSGOUT)) | ||
695 | DC390_write8(ScsiCmd, CLEAR_FIFO_CMD); | ||
696 | } | ||
697 | |||
698 | |||
699 | static irqreturn_t __inline__ | ||
700 | DC390_Interrupt(int irq, void *dev_id, struct pt_regs *regs) | ||
701 | { | ||
702 | struct dc390_acb *pACB = (struct dc390_acb*)dev_id; | ||
703 | struct dc390_dcb *pDCB; | ||
704 | struct dc390_srb *pSRB; | ||
705 | u8 sstatus=0; | ||
706 | u8 phase; | ||
707 | void (*stateV)( struct dc390_acb*, struct dc390_srb*, u8 *); | ||
708 | u8 istate, istatus; | ||
709 | #if DMA_INT | ||
710 | u8 dstatus; | ||
711 | #endif | ||
712 | |||
713 | sstatus = DC390_read8 (Scsi_Status); | ||
714 | if( !(sstatus & INTERRUPT) ) | ||
715 | return IRQ_NONE; | ||
716 | |||
717 | DEBUG1(printk (KERN_DEBUG "sstatus=%02x,", sstatus)); | ||
718 | |||
719 | #if DMA_INT | ||
720 | spin_lock_irq(pACB->pScsiHost->host_lock); | ||
721 | dstatus = dc390_dma_intr (pACB); | ||
722 | spin_unlock_irq(pACB->pScsiHost->host_lock); | ||
723 | |||
724 | DEBUG1(printk (KERN_DEBUG "dstatus=%02x,", dstatus)); | ||
725 | if (! (dstatus & SCSI_INTERRUPT)) | ||
726 | { | ||
727 | DEBUG0(printk (KERN_WARNING "DC390 Int w/o SCSI actions (only DMA?)\n")); | ||
728 | return IRQ_NONE; | ||
729 | } | ||
730 | #else | ||
731 | //DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT); | ||
732 | //dstatus = DC390_read8 (DMA_Status); | ||
733 | //DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT); | ||
734 | #endif | ||
735 | |||
736 | spin_lock_irq(pACB->pScsiHost->host_lock); | ||
737 | |||
738 | istate = DC390_read8 (Intern_State); | ||
739 | istatus = DC390_read8 (INT_Status); /* This clears Scsi_Status, Intern_State and INT_Status ! */ | ||
740 | |||
741 | DEBUG1(printk (KERN_INFO "Istatus(Res,Inv,Dis,Serv,Succ,ReS,SelA,Sel)=%02x,",istatus)); | ||
742 | dc390_laststatus &= ~0x00ffffff; | ||
743 | dc390_laststatus |= /* dstatus<<24 | */ sstatus<<16 | istate<<8 | istatus; | ||
744 | |||
745 | if (sstatus & ILLEGAL_OP_ERR) | ||
746 | { | ||
747 | printk ("DC390: Illegal Operation detected (%08x)!\n", dc390_laststatus); | ||
748 | dc390_dumpinfo (pACB, pACB->pActiveDCB, pACB->pActiveDCB->pActiveSRB); | ||
749 | } | ||
750 | |||
751 | else if (istatus & INVALID_CMD) | ||
752 | { | ||
753 | printk ("DC390: Invalid Command detected (%08x)!\n", dc390_laststatus); | ||
754 | dc390_InvalidCmd( pACB ); | ||
755 | goto unlock; | ||
756 | } | ||
757 | |||
758 | if (istatus & SCSI_RESET) | ||
759 | { | ||
760 | dc390_ScsiRstDetect( pACB ); | ||
761 | goto unlock; | ||
762 | } | ||
763 | |||
764 | if (istatus & DISCONNECTED) | ||
765 | { | ||
766 | dc390_Disconnect( pACB ); | ||
767 | goto unlock; | ||
768 | } | ||
769 | |||
770 | if (istatus & RESELECTED) | ||
771 | { | ||
772 | dc390_Reselect( pACB ); | ||
773 | goto unlock; | ||
774 | } | ||
775 | |||
776 | else if (istatus & (SELECTED | SEL_ATTENTION)) | ||
777 | { | ||
778 | printk (KERN_ERR "DC390: Target mode not supported!\n"); | ||
779 | goto unlock; | ||
780 | } | ||
781 | |||
782 | if (istatus & (SUCCESSFUL_OP|SERVICE_REQUEST) ) | ||
783 | { | ||
784 | pDCB = pACB->pActiveDCB; | ||
785 | if (!pDCB) | ||
786 | { | ||
787 | printk (KERN_ERR "DC390: Suc. op/ Serv. req: pActiveDCB = 0!\n"); | ||
788 | goto unlock; | ||
789 | } | ||
790 | pSRB = pDCB->pActiveSRB; | ||
791 | if( pDCB->DCBFlag & ABORT_DEV_ ) | ||
792 | dc390_EnableMsgOut_Abort (pACB, pSRB); | ||
793 | |||
794 | phase = pSRB->ScsiPhase; | ||
795 | DEBUG1(printk (KERN_INFO "DC390: [%i]%s(0) (%02x)\n", phase, dc390_p0_str[phase], sstatus)); | ||
796 | stateV = (void *) dc390_phase0[phase]; | ||
797 | ( *stateV )( pACB, pSRB, &sstatus ); | ||
798 | |||
799 | pSRB->ScsiPhase = sstatus & 7; | ||
800 | phase = (u8) sstatus & 7; | ||
801 | DEBUG1(printk (KERN_INFO "DC390: [%i]%s(1) (%02x)\n", phase, dc390_p1_str[phase], sstatus)); | ||
802 | stateV = (void *) dc390_phase1[phase]; | ||
803 | ( *stateV )( pACB, pSRB, &sstatus ); | ||
804 | } | ||
805 | |||
806 | unlock: | ||
807 | spin_unlock_irq(pACB->pScsiHost->host_lock); | ||
808 | return IRQ_HANDLED; | ||
809 | } | ||
810 | |||
811 | static irqreturn_t do_DC390_Interrupt( int irq, void *dev_id, struct pt_regs *regs) | ||
812 | { | ||
813 | irqreturn_t ret; | ||
814 | DEBUG1(printk (KERN_INFO "DC390: Irq (%i) caught: ", irq)); | ||
815 | /* Locking is done in DC390_Interrupt */ | ||
816 | ret = DC390_Interrupt(irq, dev_id, regs); | ||
817 | DEBUG1(printk (".. IRQ returned\n")); | ||
818 | return ret; | ||
819 | } | ||
820 | |||
821 | static void | ||
822 | dc390_DataOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
823 | { | ||
824 | u8 sstatus; | ||
825 | struct scatterlist *psgl; | ||
826 | u32 ResidCnt, xferCnt; | ||
827 | u8 dstate = 0; | ||
828 | |||
829 | sstatus = *psstatus; | ||
830 | |||
831 | if( !(pSRB->SRBState & SRB_XFERPAD) ) | ||
832 | { | ||
833 | if( sstatus & (PARITY_ERR | ILLEGAL_OP_ERR) ) | ||
834 | pSRB->SRBStatus |= PARITY_ERROR; | ||
835 | |||
836 | if( sstatus & COUNT_2_ZERO ) | ||
837 | { | ||
838 | unsigned long timeout = jiffies + HZ; | ||
839 | |||
840 | /* Function called from the ISR with the host_lock held and interrupts disabled */ | ||
841 | if (pSRB->SGToBeXferLen) | ||
842 | while (time_before(jiffies, timeout) && !((dstate = DC390_read8 (DMA_Status)) & DMA_XFER_DONE)) { | ||
843 | spin_unlock_irq(pACB->pScsiHost->host_lock); | ||
844 | udelay(50); | ||
845 | spin_lock_irq(pACB->pScsiHost->host_lock); | ||
846 | } | ||
847 | if (!time_before(jiffies, timeout)) | ||
848 | printk (KERN_CRIT "DC390: Deadlock in DataOut_0: DMA aborted unfinished: %06x bytes remain!!\n", | ||
849 | DC390_read32 (DMA_Wk_ByteCntr)); | ||
850 | dc390_laststatus &= ~0xff000000; | ||
851 | dc390_laststatus |= dstate << 24; | ||
852 | pSRB->TotalXferredLen += pSRB->SGToBeXferLen; | ||
853 | pSRB->SGIndex++; | ||
854 | if( pSRB->SGIndex < pSRB->SGcount ) | ||
855 | { | ||
856 | pSRB->pSegmentList++; | ||
857 | psgl = pSRB->pSegmentList; | ||
858 | |||
859 | pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl))); | ||
860 | pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl)); | ||
861 | } | ||
862 | else | ||
863 | pSRB->SGToBeXferLen = 0; | ||
864 | } | ||
865 | else | ||
866 | { | ||
867 | ResidCnt = (u32) DC390_read8 (Current_Fifo) & 0x1f; | ||
868 | ResidCnt |= (u32) DC390_read8 (CtcReg_High) << 16; | ||
869 | ResidCnt |= (u32) DC390_read8 (CtcReg_Mid) << 8; | ||
870 | ResidCnt += (u32) DC390_read8 (CtcReg_Low); | ||
871 | |||
872 | xferCnt = pSRB->SGToBeXferLen - ResidCnt; | ||
873 | pSRB->SGBusAddr += xferCnt; | ||
874 | pSRB->TotalXferredLen += xferCnt; | ||
875 | pSRB->SGToBeXferLen = ResidCnt; | ||
876 | } | ||
877 | } | ||
878 | if ((*psstatus & 7) != SCSI_DATA_OUT) | ||
879 | { | ||
880 | DC390_write8 (DMA_Cmd, WRITE_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */ | ||
881 | DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); | ||
882 | } | ||
883 | } | ||
884 | |||
885 | static void | ||
886 | dc390_DataIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
887 | { | ||
888 | u8 sstatus, residual, bval; | ||
889 | struct scatterlist *psgl; | ||
890 | u32 ResidCnt, i; | ||
891 | unsigned long xferCnt; | ||
892 | u8 *ptr; | ||
893 | |||
894 | sstatus = *psstatus; | ||
895 | |||
896 | if( !(pSRB->SRBState & SRB_XFERPAD) ) | ||
897 | { | ||
898 | if( sstatus & (PARITY_ERR | ILLEGAL_OP_ERR)) | ||
899 | pSRB->SRBStatus |= PARITY_ERROR; | ||
900 | |||
901 | if( sstatus & COUNT_2_ZERO ) | ||
902 | { | ||
903 | int dstate = 0; | ||
904 | unsigned long timeout = jiffies + HZ; | ||
905 | |||
906 | /* Function called from the ISR with the host_lock held and interrupts disabled */ | ||
907 | if (pSRB->SGToBeXferLen) | ||
908 | while (time_before(jiffies, timeout) && !((dstate = DC390_read8 (DMA_Status)) & DMA_XFER_DONE)) { | ||
909 | spin_unlock_irq(pACB->pScsiHost->host_lock); | ||
910 | udelay(50); | ||
911 | spin_lock_irq(pACB->pScsiHost->host_lock); | ||
912 | } | ||
913 | if (!time_before(jiffies, timeout)) { | ||
914 | printk (KERN_CRIT "DC390: Deadlock in DataIn_0: DMA aborted unfinished: %06x bytes remain!!\n", | ||
915 | DC390_read32 (DMA_Wk_ByteCntr)); | ||
916 | printk (KERN_CRIT "DC390: DataIn_0: DMA State: %i\n", dstate); | ||
917 | } | ||
918 | dc390_laststatus &= ~0xff000000; | ||
919 | dc390_laststatus |= dstate << 24; | ||
920 | DEBUG1(ResidCnt = ((unsigned long) DC390_read8 (CtcReg_High) << 16) \ | ||
921 | + ((unsigned long) DC390_read8 (CtcReg_Mid) << 8) \ | ||
922 | + ((unsigned long) DC390_read8 (CtcReg_Low))); | ||
923 | DEBUG1(printk (KERN_DEBUG "Count_2_Zero (ResidCnt=%i,ToBeXfer=%li),", ResidCnt, pSRB->SGToBeXferLen)); | ||
924 | |||
925 | DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */ | ||
926 | |||
927 | pSRB->TotalXferredLen += pSRB->SGToBeXferLen; | ||
928 | pSRB->SGIndex++; | ||
929 | if( pSRB->SGIndex < pSRB->SGcount ) | ||
930 | { | ||
931 | pSRB->pSegmentList++; | ||
932 | psgl = pSRB->pSegmentList; | ||
933 | |||
934 | pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl))); | ||
935 | pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl)); | ||
936 | } | ||
937 | else | ||
938 | pSRB->SGToBeXferLen = 0; | ||
939 | } | ||
940 | else /* phase changed */ | ||
941 | { | ||
942 | residual = 0; | ||
943 | bval = DC390_read8 (Current_Fifo); | ||
944 | while( bval & 0x1f ) | ||
945 | { | ||
946 | DEBUG1(printk (KERN_DEBUG "Check for residuals,")); | ||
947 | if( (bval & 0x1f) == 1 ) | ||
948 | { | ||
949 | for(i=0; i < 0x100; i++) | ||
950 | { | ||
951 | bval = DC390_read8 (Current_Fifo); | ||
952 | if( !(bval & 0x1f) ) | ||
953 | goto din_1; | ||
954 | else if( i == 0x0ff ) | ||
955 | { | ||
956 | residual = 1; /* ;1 residual byte */ | ||
957 | goto din_1; | ||
958 | } | ||
959 | } | ||
960 | } | ||
961 | else | ||
962 | bval = DC390_read8 (Current_Fifo); | ||
963 | } | ||
964 | din_1: | ||
965 | DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_BLAST_CMD); | ||
966 | for (i = 0xa000; i; i--) | ||
967 | { | ||
968 | bval = DC390_read8 (DMA_Status); | ||
969 | if (bval & BLAST_COMPLETE) | ||
970 | break; | ||
971 | } | ||
972 | /* It seems a DMA Blast abort isn't that bad ... */ | ||
973 | if (!i) printk (KERN_ERR "DC390: DMA Blast aborted unfinished!\n"); | ||
974 | //DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */ | ||
975 | dc390_laststatus &= ~0xff000000; dc390_laststatus |= bval << 24; | ||
976 | |||
977 | DEBUG1(printk (KERN_DEBUG "Blast: Read %i times DMA_Status %02x", 0xa000-i, bval)); | ||
978 | ResidCnt = (u32) DC390_read8 (CtcReg_High); | ||
979 | ResidCnt <<= 8; | ||
980 | ResidCnt |= (u32) DC390_read8 (CtcReg_Mid); | ||
981 | ResidCnt <<= 8; | ||
982 | ResidCnt |= (u32) DC390_read8 (CtcReg_Low); | ||
983 | |||
984 | xferCnt = pSRB->SGToBeXferLen - ResidCnt; | ||
985 | pSRB->SGBusAddr += xferCnt; | ||
986 | pSRB->TotalXferredLen += xferCnt; | ||
987 | pSRB->SGToBeXferLen = ResidCnt; | ||
988 | |||
989 | if( residual ) | ||
990 | { | ||
991 | bval = DC390_read8 (ScsiFifo); /* get one residual byte */ | ||
992 | ptr = (u8 *) bus_to_virt( pSRB->SGBusAddr ); | ||
993 | *ptr = bval; | ||
994 | pSRB->SGBusAddr++; xferCnt++; | ||
995 | pSRB->TotalXferredLen++; | ||
996 | pSRB->SGToBeXferLen--; | ||
997 | } | ||
998 | DEBUG1(printk (KERN_DEBUG "Xfered: %li, Total: %li, Remaining: %li\n", xferCnt,\ | ||
999 | pSRB->TotalXferredLen, pSRB->SGToBeXferLen)); | ||
1000 | |||
1001 | } | ||
1002 | } | ||
1003 | if ((*psstatus & 7) != SCSI_DATA_IN) | ||
1004 | { | ||
1005 | DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); | ||
1006 | DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */ | ||
1007 | } | ||
1008 | } | ||
1009 | |||
1010 | static void | ||
1011 | dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
1012 | { | ||
1013 | } | ||
1014 | |||
1015 | static void | ||
1016 | dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
1017 | { | ||
1018 | |||
1019 | pSRB->TargetStatus = DC390_read8 (ScsiFifo); | ||
1020 | //udelay (1); | ||
1021 | pSRB->EndMessage = DC390_read8 (ScsiFifo); /* get message */ | ||
1022 | |||
1023 | *psstatus = SCSI_NOP0; | ||
1024 | pSRB->SRBState = SRB_COMPLETED; | ||
1025 | DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); | ||
1026 | } | ||
1027 | |||
1028 | static void | ||
1029 | dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
1030 | { | ||
1031 | if( pSRB->SRBState & (SRB_UNEXPECT_RESEL+SRB_ABORT_SENT) ) | ||
1032 | *psstatus = SCSI_NOP0; | ||
1033 | //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); | ||
1034 | } | ||
1035 | |||
1036 | |||
1037 | static void __inline__ | ||
1038 | dc390_reprog (struct dc390_acb* pACB, struct dc390_dcb* pDCB) | ||
1039 | { | ||
1040 | DC390_write8 (Sync_Period, pDCB->SyncPeriod); | ||
1041 | DC390_write8 (Sync_Offset, pDCB->SyncOffset); | ||
1042 | DC390_write8 (CtrlReg3, pDCB->CtrlR3); | ||
1043 | DC390_write8 (CtrlReg4, pDCB->CtrlR4); | ||
1044 | dc390_SetXferRate (pACB, pDCB); | ||
1045 | } | ||
1046 | |||
1047 | |||
1048 | #ifdef DC390_DEBUG0 | ||
1049 | static void | ||
1050 | dc390_printMsg (u8 *MsgBuf, u8 len) | ||
1051 | { | ||
1052 | int i; | ||
1053 | printk (" %02x", MsgBuf[0]); | ||
1054 | for (i = 1; i < len; i++) | ||
1055 | printk (" %02x", MsgBuf[i]); | ||
1056 | printk ("\n"); | ||
1057 | } | ||
1058 | #endif | ||
1059 | |||
1060 | #define DC390_ENABLE_MSGOUT DC390_write8 (ScsiCmd, SET_ATN_CMD) | ||
1061 | |||
1062 | /* reject_msg */ | ||
1063 | static void __inline__ | ||
1064 | dc390_MsgIn_reject (struct dc390_acb* pACB, struct dc390_srb* pSRB) | ||
1065 | { | ||
1066 | pSRB->MsgOutBuf[0] = MESSAGE_REJECT; | ||
1067 | pSRB->MsgCnt = 1; | ||
1068 | DC390_ENABLE_MSGOUT; | ||
1069 | DEBUG0 (printk (KERN_INFO "DC390: Reject message\n")); | ||
1070 | } | ||
1071 | |||
1072 | /* abort command */ | ||
1073 | static void | ||
1074 | dc390_EnableMsgOut_Abort ( struct dc390_acb* pACB, struct dc390_srb* pSRB ) | ||
1075 | { | ||
1076 | pSRB->MsgOutBuf[0] = ABORT; | ||
1077 | pSRB->MsgCnt = 1; DC390_ENABLE_MSGOUT; | ||
1078 | pSRB->pSRBDCB->DCBFlag &= ~ABORT_DEV_; | ||
1079 | } | ||
1080 | |||
1081 | static struct dc390_srb* | ||
1082 | dc390_MsgIn_QTag (struct dc390_acb* pACB, struct dc390_dcb* pDCB, s8 tag) | ||
1083 | { | ||
1084 | struct dc390_srb* pSRB = pDCB->pGoingSRB; | ||
1085 | |||
1086 | if (pSRB) | ||
1087 | { | ||
1088 | struct scsi_cmnd *scmd = scsi_find_tag(pSRB->pcmd->device, tag); | ||
1089 | pSRB = (struct dc390_srb *)scmd->host_scribble; | ||
1090 | |||
1091 | if (pDCB->DCBFlag & ABORT_DEV_) | ||
1092 | { | ||
1093 | pSRB->SRBState = SRB_ABORT_SENT; | ||
1094 | dc390_EnableMsgOut_Abort( pACB, pSRB ); | ||
1095 | } | ||
1096 | |||
1097 | if (!(pSRB->SRBState & SRB_DISCONNECT)) | ||
1098 | goto mingx0; | ||
1099 | |||
1100 | pDCB->pActiveSRB = pSRB; | ||
1101 | pSRB->SRBState = SRB_DATA_XFER; | ||
1102 | } | ||
1103 | else | ||
1104 | { | ||
1105 | mingx0: | ||
1106 | pSRB = pACB->pTmpSRB; | ||
1107 | pSRB->SRBState = SRB_UNEXPECT_RESEL; | ||
1108 | pDCB->pActiveSRB = pSRB; | ||
1109 | pSRB->MsgOutBuf[0] = ABORT_TAG; | ||
1110 | pSRB->MsgCnt = 1; DC390_ENABLE_MSGOUT; | ||
1111 | } | ||
1112 | return pSRB; | ||
1113 | } | ||
1114 | |||
1115 | |||
1116 | /* set async transfer mode */ | ||
1117 | static void | ||
1118 | dc390_MsgIn_set_async (struct dc390_acb* pACB, struct dc390_srb* pSRB) | ||
1119 | { | ||
1120 | struct dc390_dcb* pDCB = pSRB->pSRBDCB; | ||
1121 | if (!(pSRB->SRBState & DO_SYNC_NEGO)) | ||
1122 | printk (KERN_INFO "DC390: Target %i initiates Non-Sync?\n", pDCB->TargetID); | ||
1123 | pSRB->SRBState &= ~DO_SYNC_NEGO; | ||
1124 | pDCB->SyncMode &= ~(SYNC_ENABLE+SYNC_NEGO_DONE); | ||
1125 | pDCB->SyncPeriod = 0; | ||
1126 | pDCB->SyncOffset = 0; | ||
1127 | //pDCB->NegoPeriod = 50; /* 200ns <=> 5 MHz */ | ||
1128 | pDCB->CtrlR3 = FAST_CLK; /* fast clock / normal scsi */ | ||
1129 | pDCB->CtrlR4 &= 0x3f; | ||
1130 | pDCB->CtrlR4 |= pACB->glitch_cfg; /* glitch eater */ | ||
1131 | dc390_reprog (pACB, pDCB); | ||
1132 | } | ||
1133 | |||
1134 | /* set sync transfer mode */ | ||
1135 | static void | ||
1136 | dc390_MsgIn_set_sync (struct dc390_acb* pACB, struct dc390_srb* pSRB) | ||
1137 | { | ||
1138 | u8 bval; | ||
1139 | u16 wval, wval1; | ||
1140 | struct dc390_dcb* pDCB = pSRB->pSRBDCB; | ||
1141 | u8 oldsyncperiod = pDCB->SyncPeriod; | ||
1142 | u8 oldsyncoffset = pDCB->SyncOffset; | ||
1143 | |||
1144 | if (!(pSRB->SRBState & DO_SYNC_NEGO)) | ||
1145 | { | ||
1146 | printk (KERN_INFO "DC390: Target %i initiates Sync: %ins %i ... answer ...\n", | ||
1147 | pDCB->TargetID, pSRB->MsgInBuf[3]<<2, pSRB->MsgInBuf[4]); | ||
1148 | |||
1149 | /* reject */ | ||
1150 | //dc390_MsgIn_reject (pACB, pSRB); | ||
1151 | //return dc390_MsgIn_set_async (pACB, pSRB); | ||
1152 | |||
1153 | /* Reply with corrected SDTR Message */ | ||
1154 | if (pSRB->MsgInBuf[4] > 15) | ||
1155 | { | ||
1156 | printk (KERN_INFO "DC390: Lower Sync Offset to 15\n"); | ||
1157 | pSRB->MsgInBuf[4] = 15; | ||
1158 | } | ||
1159 | if (pSRB->MsgInBuf[3] < pDCB->NegoPeriod) | ||
1160 | { | ||
1161 | printk (KERN_INFO "DC390: Set sync nego period to %ins\n", pDCB->NegoPeriod << 2); | ||
1162 | pSRB->MsgInBuf[3] = pDCB->NegoPeriod; | ||
1163 | } | ||
1164 | memcpy (pSRB->MsgOutBuf, pSRB->MsgInBuf, 5); | ||
1165 | pSRB->MsgCnt = 5; | ||
1166 | DC390_ENABLE_MSGOUT; | ||
1167 | } | ||
1168 | |||
1169 | pSRB->SRBState &= ~DO_SYNC_NEGO; | ||
1170 | pDCB->SyncMode |= SYNC_ENABLE+SYNC_NEGO_DONE; | ||
1171 | pDCB->SyncOffset &= 0x0f0; | ||
1172 | pDCB->SyncOffset |= pSRB->MsgInBuf[4]; | ||
1173 | pDCB->NegoPeriod = pSRB->MsgInBuf[3]; | ||
1174 | |||
1175 | wval = (u16) pSRB->MsgInBuf[3]; | ||
1176 | wval = wval << 2; wval -= 3; wval1 = wval / 25; /* compute speed */ | ||
1177 | if( (wval1 * 25) != wval) wval1++; | ||
1178 | bval = FAST_CLK+FAST_SCSI; /* fast clock / fast scsi */ | ||
1179 | |||
1180 | pDCB->CtrlR4 &= 0x3f; /* Glitch eater: 12ns less than normal */ | ||
1181 | if (pACB->glitch_cfg != NS_TO_GLITCH(0)) | ||
1182 | pDCB->CtrlR4 |= NS_TO_GLITCH(((GLITCH_TO_NS(pACB->glitch_cfg)) - 1)); | ||
1183 | else | ||
1184 | pDCB->CtrlR4 |= NS_TO_GLITCH(0); | ||
1185 | if (wval1 < 4) pDCB->CtrlR4 |= NS_TO_GLITCH(0); /* Ultra */ | ||
1186 | |||
1187 | if (wval1 >= 8) | ||
1188 | { | ||
1189 | wval1--; /* Timing computation differs by 1 from FAST_SCSI */ | ||
1190 | bval = FAST_CLK; /* fast clock / normal scsi */ | ||
1191 | pDCB->CtrlR4 |= pACB->glitch_cfg; /* glitch eater */ | ||
1192 | } | ||
1193 | |||
1194 | pDCB->CtrlR3 = bval; | ||
1195 | pDCB->SyncPeriod = (u8)wval1; | ||
1196 | |||
1197 | if ((oldsyncperiod != wval1 || oldsyncoffset != pDCB->SyncOffset) && pDCB->TargetLUN == 0) | ||
1198 | { | ||
1199 | if (! (bval & FAST_SCSI)) wval1++; | ||
1200 | printk (KERN_INFO "DC390: Target %i: Sync transfer %i.%1i MHz, Offset %i\n", pDCB->TargetID, | ||
1201 | 40/wval1, ((40%wval1)*10+wval1/2)/wval1, pDCB->SyncOffset & 0x0f); | ||
1202 | } | ||
1203 | |||
1204 | dc390_reprog (pACB, pDCB); | ||
1205 | } | ||
1206 | |||
1207 | |||
1208 | /* handle RESTORE_PTR */ | ||
1209 | /* I presume, this command is already mapped, so, have to remap. */ | ||
1210 | static void | ||
1211 | dc390_restore_ptr (struct dc390_acb* pACB, struct dc390_srb* pSRB) | ||
1212 | { | ||
1213 | struct scsi_cmnd *pcmd = pSRB->pcmd; | ||
1214 | struct scatterlist *psgl; | ||
1215 | pSRB->TotalXferredLen = 0; | ||
1216 | pSRB->SGIndex = 0; | ||
1217 | if (pcmd->use_sg) { | ||
1218 | pSRB->pSegmentList = (struct scatterlist *)pcmd->request_buffer; | ||
1219 | psgl = pSRB->pSegmentList; | ||
1220 | //dc390_pci_sync(pSRB); | ||
1221 | |||
1222 | while (pSRB->TotalXferredLen + (unsigned long) sg_dma_len(psgl) < pSRB->Saved_Ptr) | ||
1223 | { | ||
1224 | pSRB->TotalXferredLen += (unsigned long) sg_dma_len(psgl); | ||
1225 | pSRB->SGIndex++; | ||
1226 | if( pSRB->SGIndex < pSRB->SGcount ) | ||
1227 | { | ||
1228 | pSRB->pSegmentList++; | ||
1229 | psgl = pSRB->pSegmentList; | ||
1230 | pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl))); | ||
1231 | pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl)); | ||
1232 | } | ||
1233 | else | ||
1234 | pSRB->SGToBeXferLen = 0; | ||
1235 | } | ||
1236 | pSRB->SGToBeXferLen -= (pSRB->Saved_Ptr - pSRB->TotalXferredLen); | ||
1237 | pSRB->SGBusAddr += (pSRB->Saved_Ptr - pSRB->TotalXferredLen); | ||
1238 | printk (KERN_INFO "DC390: Pointer restored. Segment %i, Total %li, Bus %08lx\n", | ||
1239 | pSRB->SGIndex, pSRB->Saved_Ptr, pSRB->SGBusAddr); | ||
1240 | |||
1241 | } else if(pcmd->request_buffer) { | ||
1242 | //dc390_pci_sync(pSRB); | ||
1243 | |||
1244 | sg_dma_len(&pSRB->Segmentx) = pcmd->request_bufflen - pSRB->Saved_Ptr; | ||
1245 | pSRB->SGcount = 1; | ||
1246 | pSRB->pSegmentList = (struct scatterlist *) &pSRB->Segmentx; | ||
1247 | } else { | ||
1248 | pSRB->SGcount = 0; | ||
1249 | printk (KERN_INFO "DC390: RESTORE_PTR message for Transfer without Scatter-Gather ??\n"); | ||
1250 | } | ||
1251 | |||
1252 | pSRB->TotalXferredLen = pSRB->Saved_Ptr; | ||
1253 | } | ||
1254 | |||
1255 | |||
1256 | /* According to the docs, the AM53C974 reads the message and | ||
1257 | * generates a Successful Operation IRQ before asserting ACK for | ||
1258 | * the last byte (how does it know whether it's the last ?) */ | ||
1259 | /* The old code handled it in another way, indicating, that on | ||
1260 | * every message byte an IRQ is generated and every byte has to | ||
1261 | * be manually ACKed. Hmmm ? (KG, 98/11/28) */ | ||
1262 | /* The old implementation was correct. Sigh! */ | ||
1263 | |||
1264 | /* Check if the message is complete */ | ||
1265 | static u8 __inline__ | ||
1266 | dc390_MsgIn_complete (u8 *msgbuf, u32 len) | ||
1267 | { | ||
1268 | if (*msgbuf == EXTENDED_MESSAGE) | ||
1269 | { | ||
1270 | if (len < 2) return 0; | ||
1271 | if (len < msgbuf[1] + 2) return 0; | ||
1272 | } | ||
1273 | else if (*msgbuf >= 0x20 && *msgbuf <= 0x2f) // two byte messages | ||
1274 | if (len < 2) return 0; | ||
1275 | return 1; | ||
1276 | } | ||
1277 | |||
1278 | |||
1279 | |||
1280 | /* read and eval received messages */ | ||
1281 | static void | ||
1282 | dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
1283 | { | ||
1284 | struct dc390_dcb* pDCB = pACB->pActiveDCB; | ||
1285 | |||
1286 | /* Read the msg */ | ||
1287 | |||
1288 | pSRB->MsgInBuf[pACB->MsgLen++] = DC390_read8 (ScsiFifo); | ||
1289 | //pSRB->SRBState = 0; | ||
1290 | |||
1291 | /* Msg complete ? */ | ||
1292 | if (dc390_MsgIn_complete (pSRB->MsgInBuf, pACB->MsgLen)) | ||
1293 | { | ||
1294 | DEBUG0 (printk (KERN_INFO "DC390: MsgIn:"); dc390_printMsg (pSRB->MsgInBuf, pACB->MsgLen)); | ||
1295 | /* Now eval the msg */ | ||
1296 | switch (pSRB->MsgInBuf[0]) | ||
1297 | { | ||
1298 | case DISCONNECT: | ||
1299 | pSRB->SRBState = SRB_DISCONNECT; break; | ||
1300 | |||
1301 | case SIMPLE_QUEUE_TAG: | ||
1302 | case HEAD_OF_QUEUE_TAG: | ||
1303 | case ORDERED_QUEUE_TAG: | ||
1304 | pSRB = dc390_MsgIn_QTag (pACB, pDCB, pSRB->MsgInBuf[1]); | ||
1305 | break; | ||
1306 | |||
1307 | case MESSAGE_REJECT: | ||
1308 | DC390_write8 (ScsiCmd, RESET_ATN_CMD); | ||
1309 | pDCB->NegoPeriod = 50; /* 200ns <=> 5 MHz */ | ||
1310 | if( pSRB->SRBState & DO_SYNC_NEGO) | ||
1311 | dc390_MsgIn_set_async (pACB, pSRB); | ||
1312 | break; | ||
1313 | |||
1314 | case EXTENDED_MESSAGE: | ||
1315 | /* reject every extended msg but SDTR */ | ||
1316 | if (pSRB->MsgInBuf[1] != 3 || pSRB->MsgInBuf[2] != EXTENDED_SDTR) | ||
1317 | dc390_MsgIn_reject (pACB, pSRB); | ||
1318 | else | ||
1319 | { | ||
1320 | if (pSRB->MsgInBuf[3] == 0 || pSRB->MsgInBuf[4] == 0) | ||
1321 | dc390_MsgIn_set_async (pACB, pSRB); | ||
1322 | else | ||
1323 | dc390_MsgIn_set_sync (pACB, pSRB); | ||
1324 | } | ||
1325 | |||
1326 | // nothing has to be done | ||
1327 | case COMMAND_COMPLETE: break; | ||
1328 | |||
1329 | // SAVE POINTER may be ignored as we have the struct dc390_srb* associated with the | ||
1330 | // scsi command. Thanks, Gerard, for pointing it out. | ||
1331 | case SAVE_POINTERS: | ||
1332 | pSRB->Saved_Ptr = pSRB->TotalXferredLen; | ||
1333 | break; | ||
1334 | // The device might want to restart transfer with a RESTORE | ||
1335 | case RESTORE_POINTERS: | ||
1336 | DEBUG0(printk ("DC390: RESTORE POINTER message received ... try to handle\n")); | ||
1337 | dc390_restore_ptr (pACB, pSRB); | ||
1338 | break; | ||
1339 | |||
1340 | // reject unknown messages | ||
1341 | default: dc390_MsgIn_reject (pACB, pSRB); | ||
1342 | } | ||
1343 | |||
1344 | /* Clear counter and MsgIn state */ | ||
1345 | pSRB->SRBState &= ~SRB_MSGIN; | ||
1346 | pACB->MsgLen = 0; | ||
1347 | } | ||
1348 | |||
1349 | *psstatus = SCSI_NOP0; | ||
1350 | DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); | ||
1351 | //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); | ||
1352 | } | ||
1353 | |||
1354 | |||
1355 | static void | ||
1356 | dc390_DataIO_Comm( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 ioDir) | ||
1357 | { | ||
1358 | struct scatterlist *psgl; | ||
1359 | unsigned long lval; | ||
1360 | struct dc390_dcb* pDCB = pACB->pActiveDCB; | ||
1361 | |||
1362 | if (pSRB == pACB->pTmpSRB) | ||
1363 | { | ||
1364 | if (pDCB) | ||
1365 | printk(KERN_ERR "DC390: pSRB == pTmpSRB! (TagQ Error?) (%02i-%i)\n", pDCB->TargetID, pDCB->TargetLUN); | ||
1366 | else | ||
1367 | printk(KERN_ERR "DC390: pSRB == pTmpSRB! (TagQ Error?) (DCB 0!)\n"); | ||
1368 | |||
1369 | /* Try to recover - some broken disks react badly to tagged INQUIRY */ | ||
1370 | if (pDCB && pACB->scan_devices && pDCB->GoingSRBCnt == 1) { | ||
1371 | pSRB = pDCB->pGoingSRB; | ||
1372 | pDCB->pActiveSRB = pSRB; | ||
1373 | } else { | ||
1374 | pSRB->pSRBDCB = pDCB; | ||
1375 | dc390_EnableMsgOut_Abort(pACB, pSRB); | ||
1376 | if (pDCB) | ||
1377 | pDCB->DCBFlag |= ABORT_DEV; | ||
1378 | return; | ||
1379 | } | ||
1380 | } | ||
1381 | |||
1382 | if( pSRB->SGIndex < pSRB->SGcount ) | ||
1383 | { | ||
1384 | DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir /* | DMA_INT */); | ||
1385 | if( !pSRB->SGToBeXferLen ) | ||
1386 | { | ||
1387 | psgl = pSRB->pSegmentList; | ||
1388 | pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl))); | ||
1389 | pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl)); | ||
1390 | DEBUG1(printk (KERN_DEBUG " DC390: Next SG segment.")); | ||
1391 | } | ||
1392 | lval = pSRB->SGToBeXferLen; | ||
1393 | DEBUG1(printk (KERN_DEBUG " DC390: Start transfer: %li bytes (address %08lx)\n", lval, pSRB->SGBusAddr)); | ||
1394 | DC390_write8 (CtcReg_Low, (u8) lval); | ||
1395 | lval >>= 8; | ||
1396 | DC390_write8 (CtcReg_Mid, (u8) lval); | ||
1397 | lval >>= 8; | ||
1398 | DC390_write8 (CtcReg_High, (u8) lval); | ||
1399 | |||
1400 | DC390_write32 (DMA_XferCnt, pSRB->SGToBeXferLen); | ||
1401 | DC390_write32 (DMA_XferAddr, pSRB->SGBusAddr); | ||
1402 | |||
1403 | //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); /* | DMA_INT; */ | ||
1404 | pSRB->SRBState = SRB_DATA_XFER; | ||
1405 | |||
1406 | DC390_write8 (ScsiCmd, DMA_COMMAND+INFO_XFER_CMD); | ||
1407 | |||
1408 | DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir | DMA_INT); | ||
1409 | //DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT)); | ||
1410 | //DEBUG1(printk (KERN_DEBUG "DC390: DMA_Status: %02x\n", DC390_read8 (DMA_Status))); | ||
1411 | //DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT)); | ||
1412 | } | ||
1413 | else /* xfer pad */ | ||
1414 | { | ||
1415 | if( pSRB->SGcount ) | ||
1416 | { | ||
1417 | pSRB->AdaptStatus = H_OVER_UNDER_RUN; | ||
1418 | pSRB->SRBStatus |= OVER_RUN; | ||
1419 | DEBUG0(printk (KERN_WARNING " DC390: Overrun -")); | ||
1420 | } | ||
1421 | DEBUG0(printk (KERN_WARNING " Clear transfer pad \n")); | ||
1422 | DC390_write8 (CtcReg_Low, 0); | ||
1423 | DC390_write8 (CtcReg_Mid, 0); | ||
1424 | DC390_write8 (CtcReg_High, 0); | ||
1425 | |||
1426 | pSRB->SRBState |= SRB_XFERPAD; | ||
1427 | DC390_write8 (ScsiCmd, DMA_COMMAND+XFER_PAD_BYTE); | ||
1428 | /* | ||
1429 | DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); // | DMA_INT; | ||
1430 | DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir | DMA_INT); | ||
1431 | */ | ||
1432 | } | ||
1433 | } | ||
1434 | |||
1435 | |||
1436 | static void | ||
1437 | dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
1438 | { | ||
1439 | dc390_DataIO_Comm (pACB, pSRB, WRITE_DIRECTION); | ||
1440 | } | ||
1441 | |||
1442 | static void | ||
1443 | dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
1444 | { | ||
1445 | dc390_DataIO_Comm (pACB, pSRB, READ_DIRECTION); | ||
1446 | } | ||
1447 | |||
1448 | static void | ||
1449 | dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
1450 | { | ||
1451 | struct dc390_dcb* pDCB; | ||
1452 | u8 i, cnt; | ||
1453 | u8 *ptr; | ||
1454 | |||
1455 | DC390_write8 (ScsiCmd, RESET_ATN_CMD); | ||
1456 | DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); | ||
1457 | if( !(pSRB->SRBFlag & AUTO_REQSENSE) ) | ||
1458 | { | ||
1459 | cnt = (u8) pSRB->pcmd->cmd_len; | ||
1460 | ptr = (u8 *) pSRB->pcmd->cmnd; | ||
1461 | for(i=0; i < cnt; i++) | ||
1462 | DC390_write8 (ScsiFifo, *(ptr++)); | ||
1463 | } | ||
1464 | else | ||
1465 | { | ||
1466 | DC390_write8 (ScsiFifo, REQUEST_SENSE); | ||
1467 | pDCB = pACB->pActiveDCB; | ||
1468 | DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5); | ||
1469 | DC390_write8 (ScsiFifo, 0); | ||
1470 | DC390_write8 (ScsiFifo, 0); | ||
1471 | DC390_write8 (ScsiFifo, sizeof(pSRB->pcmd->sense_buffer)); | ||
1472 | DC390_write8 (ScsiFifo, 0); | ||
1473 | DEBUG0(printk(KERN_DEBUG "DC390: AutoReqSense (CmndPhase)!\n")); | ||
1474 | } | ||
1475 | pSRB->SRBState = SRB_COMMAND; | ||
1476 | DC390_write8 (ScsiCmd, INFO_XFER_CMD); | ||
1477 | } | ||
1478 | |||
1479 | static void | ||
1480 | dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
1481 | { | ||
1482 | DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); | ||
1483 | pSRB->SRBState = SRB_STATUS; | ||
1484 | DC390_write8 (ScsiCmd, INITIATOR_CMD_CMPLTE); | ||
1485 | //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); | ||
1486 | } | ||
1487 | |||
1488 | static void | ||
1489 | dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
1490 | { | ||
1491 | u8 bval, i, cnt; | ||
1492 | u8 *ptr; | ||
1493 | struct dc390_dcb* pDCB; | ||
1494 | |||
1495 | DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); | ||
1496 | pDCB = pACB->pActiveDCB; | ||
1497 | if( !(pSRB->SRBState & SRB_MSGOUT) ) | ||
1498 | { | ||
1499 | cnt = pSRB->MsgCnt; | ||
1500 | if( cnt ) | ||
1501 | { | ||
1502 | ptr = (u8 *) pSRB->MsgOutBuf; | ||
1503 | for(i=0; i < cnt; i++) | ||
1504 | DC390_write8 (ScsiFifo, *(ptr++)); | ||
1505 | pSRB->MsgCnt = 0; | ||
1506 | if( (pDCB->DCBFlag & ABORT_DEV_) && | ||
1507 | (pSRB->MsgOutBuf[0] == ABORT) ) | ||
1508 | pSRB->SRBState = SRB_ABORT_SENT; | ||
1509 | } | ||
1510 | else | ||
1511 | { | ||
1512 | bval = ABORT; /* ??? MSG_NOP */ | ||
1513 | if( (pSRB->pcmd->cmnd[0] == INQUIRY ) || | ||
1514 | (pSRB->pcmd->cmnd[0] == REQUEST_SENSE) || | ||
1515 | (pSRB->SRBFlag & AUTO_REQSENSE) ) | ||
1516 | { | ||
1517 | if( pDCB->SyncMode & SYNC_ENABLE ) | ||
1518 | goto mop1; | ||
1519 | } | ||
1520 | DC390_write8 (ScsiFifo, bval); | ||
1521 | } | ||
1522 | DC390_write8 (ScsiCmd, INFO_XFER_CMD); | ||
1523 | } | ||
1524 | else | ||
1525 | { | ||
1526 | mop1: | ||
1527 | printk (KERN_ERR "DC390: OLD Sync Nego code triggered! (%i %i)\n", pDCB->TargetID, pDCB->TargetLUN); | ||
1528 | DC390_write8 (ScsiFifo, EXTENDED_MESSAGE); | ||
1529 | DC390_write8 (ScsiFifo, 3); /* ;length of extended msg */ | ||
1530 | DC390_write8 (ScsiFifo, EXTENDED_SDTR); /* ; sync nego */ | ||
1531 | DC390_write8 (ScsiFifo, pDCB->NegoPeriod); | ||
1532 | if (pDCB->SyncOffset & 0x0f) | ||
1533 | DC390_write8 (ScsiFifo, pDCB->SyncOffset); | ||
1534 | else | ||
1535 | DC390_write8 (ScsiFifo, SYNC_NEGO_OFFSET); | ||
1536 | pSRB->SRBState |= DO_SYNC_NEGO; | ||
1537 | DC390_write8 (ScsiCmd, INFO_XFER_CMD); | ||
1538 | } | ||
1539 | } | ||
1540 | |||
1541 | static void | ||
1542 | dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
1543 | { | ||
1544 | DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); | ||
1545 | if( !(pSRB->SRBState & SRB_MSGIN) ) | ||
1546 | { | ||
1547 | pSRB->SRBState &= ~SRB_DISCONNECT; | ||
1548 | pSRB->SRBState |= SRB_MSGIN; | ||
1549 | } | ||
1550 | DC390_write8 (ScsiCmd, INFO_XFER_CMD); | ||
1551 | //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); | ||
1552 | } | ||
1553 | |||
1554 | static void | ||
1555 | dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
1556 | { | ||
1557 | } | ||
1558 | |||
1559 | static void | ||
1560 | dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) | ||
1561 | { | ||
1562 | } | ||
1563 | |||
1564 | |||
1565 | static void | ||
1566 | dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB ) | ||
1567 | { | ||
1568 | u8 bval, i, cnt; | ||
1569 | struct dc390_dcb* ptr; | ||
1570 | |||
1571 | if( !(pDCB->TargetLUN) ) | ||
1572 | { | ||
1573 | if( !pACB->scan_devices ) | ||
1574 | { | ||
1575 | ptr = pACB->pLinkDCB; | ||
1576 | cnt = pACB->DCBCnt; | ||
1577 | bval = pDCB->TargetID; | ||
1578 | for(i=0; i<cnt; i++) | ||
1579 | { | ||
1580 | if( ptr->TargetID == bval ) | ||
1581 | { | ||
1582 | ptr->SyncPeriod = pDCB->SyncPeriod; | ||
1583 | ptr->SyncOffset = pDCB->SyncOffset; | ||
1584 | ptr->CtrlR3 = pDCB->CtrlR3; | ||
1585 | ptr->CtrlR4 = pDCB->CtrlR4; | ||
1586 | ptr->SyncMode = pDCB->SyncMode; | ||
1587 | } | ||
1588 | ptr = ptr->pNextDCB; | ||
1589 | } | ||
1590 | } | ||
1591 | } | ||
1592 | return; | ||
1593 | } | ||
1594 | |||
1595 | |||
1596 | static void | ||
1597 | dc390_Disconnect( struct dc390_acb* pACB ) | ||
1598 | { | ||
1599 | struct dc390_dcb *pDCB; | ||
1600 | struct dc390_srb *pSRB, *psrb; | ||
1601 | u8 i, cnt; | ||
1602 | |||
1603 | DEBUG0(printk(KERN_INFO "DISC,")); | ||
1604 | |||
1605 | if (!pACB->Connected) printk(KERN_ERR "DC390: Disconnect not-connected bus?\n"); | ||
1606 | pACB->Connected = 0; | ||
1607 | pDCB = pACB->pActiveDCB; | ||
1608 | if (!pDCB) | ||
1609 | { | ||
1610 | DEBUG0(printk(KERN_ERR "ACB:%p->ActiveDCB:%p IOPort:%04x IRQ:%02x !\n",\ | ||
1611 | pACB, pDCB, pACB->IOPortBase, pACB->IRQLevel)); | ||
1612 | mdelay(400); | ||
1613 | DC390_read8 (INT_Status); /* Reset Pending INT */ | ||
1614 | DC390_write8 (ScsiCmd, EN_SEL_RESEL); | ||
1615 | return; | ||
1616 | } | ||
1617 | DC390_write8 (ScsiCmd, EN_SEL_RESEL); | ||
1618 | pSRB = pDCB->pActiveSRB; | ||
1619 | pACB->pActiveDCB = NULL; | ||
1620 | pSRB->ScsiPhase = SCSI_NOP0; | ||
1621 | if( pSRB->SRBState & SRB_UNEXPECT_RESEL ) | ||
1622 | pSRB->SRBState = 0; | ||
1623 | else if( pSRB->SRBState & SRB_ABORT_SENT ) | ||
1624 | { | ||
1625 | pDCB->TagMask = 0; | ||
1626 | pDCB->DCBFlag = 0; | ||
1627 | cnt = pDCB->GoingSRBCnt; | ||
1628 | pDCB->GoingSRBCnt = 0; | ||
1629 | pSRB = pDCB->pGoingSRB; | ||
1630 | for( i=0; i < cnt; i++) | ||
1631 | { | ||
1632 | psrb = pSRB->pNextSRB; | ||
1633 | dc390_Free_insert (pACB, pSRB); | ||
1634 | pSRB = psrb; | ||
1635 | } | ||
1636 | pDCB->pGoingSRB = NULL; | ||
1637 | } | ||
1638 | else | ||
1639 | { | ||
1640 | if( (pSRB->SRBState & (SRB_START_+SRB_MSGOUT)) || | ||
1641 | !(pSRB->SRBState & (SRB_DISCONNECT+SRB_COMPLETED)) ) | ||
1642 | { /* Selection time out */ | ||
1643 | pSRB->TargetStatus = SCSI_STAT_SEL_TIMEOUT; | ||
1644 | goto disc1; | ||
1645 | } | ||
1646 | else if (!(pSRB->SRBState & SRB_DISCONNECT) && (pSRB->SRBState & SRB_COMPLETED)) | ||
1647 | { | ||
1648 | disc1: | ||
1649 | dc390_freetag (pDCB, pSRB); | ||
1650 | pDCB->pActiveSRB = NULL; | ||
1651 | pSRB->SRBState = SRB_FREE; | ||
1652 | dc390_SRBdone( pACB, pDCB, pSRB); | ||
1653 | } | ||
1654 | } | ||
1655 | pACB->MsgLen = 0; | ||
1656 | } | ||
1657 | |||
1658 | |||
1659 | static void | ||
1660 | dc390_Reselect( struct dc390_acb* pACB ) | ||
1661 | { | ||
1662 | struct dc390_dcb* pDCB; | ||
1663 | struct dc390_srb* pSRB; | ||
1664 | u8 id, lun; | ||
1665 | |||
1666 | DEBUG0(printk(KERN_INFO "RSEL,")); | ||
1667 | pACB->Connected = 1; | ||
1668 | pDCB = pACB->pActiveDCB; | ||
1669 | if( pDCB ) | ||
1670 | { /* Arbitration lost but Reselection won */ | ||
1671 | DEBUG0(printk ("DC390: (ActiveDCB != 0: Arb. lost but resel. won)!\n")); | ||
1672 | pSRB = pDCB->pActiveSRB; | ||
1673 | if( !( pACB->scan_devices ) ) | ||
1674 | { | ||
1675 | struct scsi_cmnd *pcmd = pSRB->pcmd; | ||
1676 | pcmd->resid = pcmd->request_bufflen; | ||
1677 | SET_RES_DID(pcmd->result, DID_SOFT_ERROR); | ||
1678 | dc390_Going_remove(pDCB, pSRB); | ||
1679 | dc390_Free_insert(pACB, pSRB); | ||
1680 | pcmd->scsi_done (pcmd); | ||
1681 | DEBUG0(printk(KERN_DEBUG"DC390: Return SRB %p to free\n", pSRB)); | ||
1682 | } | ||
1683 | } | ||
1684 | /* Get ID */ | ||
1685 | lun = DC390_read8 (ScsiFifo); | ||
1686 | DEBUG0(printk ("Dev %02x,", lun)); | ||
1687 | if (!(lun & (1 << pACB->pScsiHost->this_id))) | ||
1688 | printk (KERN_ERR "DC390: Reselection must select host adapter: %02x!\n", lun); | ||
1689 | else | ||
1690 | lun ^= 1 << pACB->pScsiHost->this_id; /* Mask AdapterID */ | ||
1691 | id = 0; while (lun >>= 1) id++; | ||
1692 | /* Get LUN */ | ||
1693 | lun = DC390_read8 (ScsiFifo); | ||
1694 | if (!(lun & IDENTIFY_BASE)) printk (KERN_ERR "DC390: Resel: Expect identify message!\n"); | ||
1695 | lun &= 7; | ||
1696 | DEBUG0(printk ("(%02i-%i),", id, lun)); | ||
1697 | pDCB = dc390_findDCB (pACB, id, lun); | ||
1698 | if (!pDCB) | ||
1699 | { | ||
1700 | printk (KERN_ERR "DC390: Reselect from non existing device (%02i-%i)\n", | ||
1701 | id, lun); | ||
1702 | return; | ||
1703 | } | ||
1704 | pACB->pActiveDCB = pDCB; | ||
1705 | /* TagQ: We expect a message soon, so never mind the exact SRB */ | ||
1706 | if( pDCB->SyncMode & EN_TAG_QUEUEING ) | ||
1707 | { | ||
1708 | pSRB = pACB->pTmpSRB; | ||
1709 | pDCB->pActiveSRB = pSRB; | ||
1710 | } | ||
1711 | else | ||
1712 | { | ||
1713 | pSRB = pDCB->pActiveSRB; | ||
1714 | if( !pSRB || !(pSRB->SRBState & SRB_DISCONNECT) ) | ||
1715 | { | ||
1716 | pSRB= pACB->pTmpSRB; | ||
1717 | pSRB->SRBState = SRB_UNEXPECT_RESEL; | ||
1718 | printk (KERN_ERR "DC390: Reselect without outstanding cmnd (%02i-%i)\n", | ||
1719 | id, lun); | ||
1720 | pDCB->pActiveSRB = pSRB; | ||
1721 | dc390_EnableMsgOut_Abort ( pACB, pSRB ); | ||
1722 | } | ||
1723 | else | ||
1724 | { | ||
1725 | if( pDCB->DCBFlag & ABORT_DEV_ ) | ||
1726 | { | ||
1727 | pSRB->SRBState = SRB_ABORT_SENT; | ||
1728 | printk (KERN_INFO "DC390: Reselect: Abort (%02i-%i)\n", | ||
1729 | id, lun); | ||
1730 | dc390_EnableMsgOut_Abort( pACB, pSRB ); | ||
1731 | } | ||
1732 | else | ||
1733 | pSRB->SRBState = SRB_DATA_XFER; | ||
1734 | } | ||
1735 | } | ||
1736 | |||
1737 | DEBUG1(printk (KERN_DEBUG "Resel SRB(%p): TagNum (%02x)\n", pSRB, pSRB->TagNumber)); | ||
1738 | pSRB->ScsiPhase = SCSI_NOP0; | ||
1739 | DC390_write8 (Scsi_Dest_ID, pDCB->TargetID); | ||
1740 | DC390_write8 (Sync_Period, pDCB->SyncPeriod); | ||
1741 | DC390_write8 (Sync_Offset, pDCB->SyncOffset); | ||
1742 | DC390_write8 (CtrlReg1, pDCB->CtrlR1); | ||
1743 | DC390_write8 (CtrlReg3, pDCB->CtrlR3); | ||
1744 | DC390_write8 (CtrlReg4, pDCB->CtrlR4); /* ; Glitch eater */ | ||
1745 | DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); /* ;to release the /ACK signal */ | ||
1746 | } | ||
1747 | |||
1748 | static int __inline__ | ||
1749 | dc390_RequestSense(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB) | ||
1750 | { | ||
1751 | struct scsi_cmnd *pcmd; | ||
1752 | |||
1753 | pcmd = pSRB->pcmd; | ||
1754 | |||
1755 | REMOVABLEDEBUG(printk(KERN_INFO "DC390: RequestSense(Cmd %02x, Id %02x, LUN %02x)\n",\ | ||
1756 | pcmd->cmnd[0], pDCB->TargetID, pDCB->TargetLUN)); | ||
1757 | |||
1758 | pSRB->SRBFlag |= AUTO_REQSENSE; | ||
1759 | pSRB->SavedSGCount = pcmd->use_sg; | ||
1760 | pSRB->SavedTotXLen = pSRB->TotalXferredLen; | ||
1761 | pSRB->AdaptStatus = 0; | ||
1762 | pSRB->TargetStatus = 0; /* CHECK_CONDITION<<1; */ | ||
1763 | |||
1764 | /* We are called from SRBdone, original PCI mapping has been removed | ||
1765 | * already, new one is set up from StartSCSI */ | ||
1766 | pSRB->SGIndex = 0; | ||
1767 | |||
1768 | pSRB->TotalXferredLen = 0; | ||
1769 | pSRB->SGToBeXferLen = 0; | ||
1770 | return dc390_StartSCSI(pACB, pDCB, pSRB); | ||
1771 | } | ||
1772 | |||
1773 | |||
1774 | static void | ||
1775 | dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB ) | ||
1776 | { | ||
1777 | u8 status; | ||
1778 | struct scsi_cmnd *pcmd; | ||
1779 | |||
1780 | pcmd = pSRB->pcmd; | ||
1781 | /* KG: Moved pci_unmap here */ | ||
1782 | dc390_pci_unmap(pSRB); | ||
1783 | |||
1784 | status = pSRB->TargetStatus; | ||
1785 | |||
1786 | DEBUG0(printk (" SRBdone (%02x,%08x), SRB %p, pid %li\n", status, pcmd->result,\ | ||
1787 | pSRB, pcmd->pid)); | ||
1788 | if(pSRB->SRBFlag & AUTO_REQSENSE) | ||
1789 | { /* Last command was a Request Sense */ | ||
1790 | pSRB->SRBFlag &= ~AUTO_REQSENSE; | ||
1791 | pSRB->AdaptStatus = 0; | ||
1792 | pSRB->TargetStatus = CHECK_CONDITION << 1; | ||
1793 | |||
1794 | //pcmd->result = MK_RES(DRIVER_SENSE,DID_OK,0,status); | ||
1795 | if (status == (CHECK_CONDITION << 1)) | ||
1796 | pcmd->result = MK_RES_LNX(0, DID_BAD_TARGET, 0, /*CHECK_CONDITION*/0); | ||
1797 | else /* Retry */ | ||
1798 | { | ||
1799 | if( pSRB->pcmd->cmnd[0] == TEST_UNIT_READY /* || pSRB->pcmd->cmnd[0] == START_STOP */) | ||
1800 | { | ||
1801 | /* Don't retry on TEST_UNIT_READY */ | ||
1802 | pcmd->result = MK_RES_LNX(DRIVER_SENSE,DID_OK,0,CHECK_CONDITION); | ||
1803 | REMOVABLEDEBUG(printk(KERN_INFO "Cmd=%02x, Result=%08x, XferL=%08x\n",pSRB->pcmd->cmnd[0],\ | ||
1804 | (u32) pcmd->result, (u32) pSRB->TotalXferredLen)); | ||
1805 | } else { | ||
1806 | SET_RES_DRV(pcmd->result, DRIVER_SENSE); | ||
1807 | pcmd->use_sg = pSRB->SavedSGCount; | ||
1808 | //pSRB->ScsiCmdLen = (u8) (pSRB->Segment1[0] >> 8); | ||
1809 | DEBUG0 (printk ("DC390: RETRY pid %li (%02x), target %02i-%02i\n", pcmd->pid, pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun)); | ||
1810 | pSRB->TotalXferredLen = 0; | ||
1811 | SET_RES_DID(pcmd->result, DID_SOFT_ERROR); | ||
1812 | } | ||
1813 | } | ||
1814 | goto cmd_done; | ||
1815 | } | ||
1816 | if( status ) | ||
1817 | { | ||
1818 | if( status_byte(status) == CHECK_CONDITION ) | ||
1819 | { | ||
1820 | if (dc390_RequestSense(pACB, pDCB, pSRB)) { | ||
1821 | SET_RES_DID(pcmd->result, DID_ERROR); | ||
1822 | goto cmd_done; | ||
1823 | } | ||
1824 | return; | ||
1825 | } | ||
1826 | else if( status_byte(status) == QUEUE_FULL ) | ||
1827 | { | ||
1828 | scsi_track_queue_full(pcmd->device, pDCB->GoingSRBCnt - 1); | ||
1829 | pcmd->use_sg = pSRB->SavedSGCount; | ||
1830 | DEBUG0 (printk ("DC390: RETRY pid %li (%02x), target %02i-%02i\n", pcmd->pid, pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun)); | ||
1831 | pSRB->TotalXferredLen = 0; | ||
1832 | SET_RES_DID(pcmd->result, DID_SOFT_ERROR); | ||
1833 | } | ||
1834 | else if(status == SCSI_STAT_SEL_TIMEOUT) | ||
1835 | { | ||
1836 | pSRB->AdaptStatus = H_SEL_TIMEOUT; | ||
1837 | pSRB->TargetStatus = 0; | ||
1838 | pcmd->result = MK_RES(0,DID_NO_CONNECT,0,0); | ||
1839 | /* Devices are removed below ... */ | ||
1840 | } | ||
1841 | else if (status_byte(status) == BUSY && | ||
1842 | (pcmd->cmnd[0] == TEST_UNIT_READY || pcmd->cmnd[0] == INQUIRY) && | ||
1843 | pACB->scan_devices) | ||
1844 | { | ||
1845 | pSRB->AdaptStatus = 0; | ||
1846 | pSRB->TargetStatus = status; | ||
1847 | pcmd->result = MK_RES(0,0,pSRB->EndMessage,/*status*/0); | ||
1848 | } | ||
1849 | else | ||
1850 | { /* Another error */ | ||
1851 | pSRB->TotalXferredLen = 0; | ||
1852 | SET_RES_DID(pcmd->result, DID_SOFT_ERROR); | ||
1853 | goto cmd_done; | ||
1854 | } | ||
1855 | } | ||
1856 | else | ||
1857 | { /* Target status == 0 */ | ||
1858 | status = pSRB->AdaptStatus; | ||
1859 | if(status & H_OVER_UNDER_RUN) | ||
1860 | { | ||
1861 | pSRB->TargetStatus = 0; | ||
1862 | SET_RES_DID(pcmd->result,DID_OK); | ||
1863 | SET_RES_MSG(pcmd->result,pSRB->EndMessage); | ||
1864 | } | ||
1865 | else if( pSRB->SRBStatus & PARITY_ERROR) | ||
1866 | { | ||
1867 | //pcmd->result = MK_RES(0,DID_PARITY,pSRB->EndMessage,0); | ||
1868 | SET_RES_DID(pcmd->result,DID_PARITY); | ||
1869 | SET_RES_MSG(pcmd->result,pSRB->EndMessage); | ||
1870 | } | ||
1871 | else /* No error */ | ||
1872 | { | ||
1873 | pSRB->AdaptStatus = 0; | ||
1874 | pSRB->TargetStatus = 0; | ||
1875 | SET_RES_DID(pcmd->result,DID_OK); | ||
1876 | } | ||
1877 | } | ||
1878 | |||
1879 | cmd_done: | ||
1880 | pcmd->resid = pcmd->request_bufflen - pSRB->TotalXferredLen; | ||
1881 | |||
1882 | dc390_Going_remove (pDCB, pSRB); | ||
1883 | /* Add to free list */ | ||
1884 | dc390_Free_insert (pACB, pSRB); | ||
1885 | |||
1886 | DEBUG0(printk (KERN_DEBUG "DC390: SRBdone: done pid %li\n", pcmd->pid)); | ||
1887 | pcmd->scsi_done (pcmd); | ||
1888 | |||
1889 | return; | ||
1890 | } | ||
1891 | |||
1892 | |||
1893 | /* Remove all SRBs from Going list and inform midlevel */ | ||
1894 | static void | ||
1895 | dc390_DoingSRB_Done(struct dc390_acb* pACB, struct scsi_cmnd *cmd) | ||
1896 | { | ||
1897 | struct dc390_dcb *pDCB, *pdcb; | ||
1898 | struct dc390_srb *psrb, *psrb2; | ||
1899 | int i; | ||
1900 | struct scsi_cmnd *pcmd; | ||
1901 | |||
1902 | pDCB = pACB->pLinkDCB; | ||
1903 | pdcb = pDCB; | ||
1904 | if (! pdcb) return; | ||
1905 | do | ||
1906 | { | ||
1907 | psrb = pdcb->pGoingSRB; | ||
1908 | for (i = 0; i < pdcb->GoingSRBCnt; i++) | ||
1909 | { | ||
1910 | psrb2 = psrb->pNextSRB; | ||
1911 | pcmd = psrb->pcmd; | ||
1912 | dc390_Free_insert (pACB, psrb); | ||
1913 | psrb = psrb2; | ||
1914 | } | ||
1915 | pdcb->GoingSRBCnt = 0; | ||
1916 | pdcb->pGoingSRB = NULL; | ||
1917 | pdcb->TagMask = 0; | ||
1918 | pdcb = pdcb->pNextDCB; | ||
1919 | } while( pdcb != pDCB ); | ||
1920 | } | ||
1921 | |||
1922 | |||
1923 | static void | ||
1924 | dc390_ResetSCSIBus( struct dc390_acb* pACB ) | ||
1925 | { | ||
1926 | //DC390_write8 (ScsiCmd, RST_DEVICE_CMD); | ||
1927 | //udelay (250); | ||
1928 | //DC390_write8 (ScsiCmd, NOP_CMD); | ||
1929 | |||
1930 | DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); | ||
1931 | DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); | ||
1932 | DC390_write8 (ScsiCmd, RST_SCSI_BUS_CMD); | ||
1933 | pACB->Connected = 0; | ||
1934 | |||
1935 | return; | ||
1936 | } | ||
1937 | |||
1938 | static void | ||
1939 | dc390_ScsiRstDetect( struct dc390_acb* pACB ) | ||
1940 | { | ||
1941 | printk ("DC390: Rst_Detect: laststat = %08x\n", dc390_laststatus); | ||
1942 | //DEBUG0(printk(KERN_INFO "RST_DETECT,")); | ||
1943 | |||
1944 | DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); | ||
1945 | /* Unlock before ? */ | ||
1946 | /* delay half a second */ | ||
1947 | udelay (1000); | ||
1948 | DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); | ||
1949 | pACB->pScsiHost->last_reset = jiffies + 5*HZ/2 | ||
1950 | + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]; | ||
1951 | pACB->Connected = 0; | ||
1952 | |||
1953 | if( pACB->ACBFlag & RESET_DEV ) | ||
1954 | pACB->ACBFlag |= RESET_DONE; | ||
1955 | else | ||
1956 | { /* Reset was issued by sb else */ | ||
1957 | pACB->ACBFlag |= RESET_DETECT; | ||
1958 | |||
1959 | dc390_ResetDevParam( pACB ); | ||
1960 | dc390_DoingSRB_Done( pACB, NULL); | ||
1961 | //dc390_RecoverSRB( pACB ); | ||
1962 | pACB->pActiveDCB = NULL; | ||
1963 | pACB->ACBFlag = 0; | ||
1964 | } | ||
1965 | return; | ||
1966 | } | ||
1967 | |||
1968 | static int DC390_queuecommand(struct scsi_cmnd *cmd, | ||
1969 | void (*done)(struct scsi_cmnd *)) | ||
1970 | { | ||
1971 | struct scsi_device *sdev = cmd->device; | ||
1972 | struct dc390_acb *acb = (struct dc390_acb *)sdev->host->hostdata; | ||
1973 | struct dc390_dcb *dcb = sdev->hostdata; | ||
1974 | struct dc390_srb *srb; | ||
1975 | |||
1976 | if (sdev->queue_depth <= dcb->GoingSRBCnt) | ||
1977 | goto device_busy; | ||
1978 | if (acb->pActiveDCB) | ||
1979 | goto host_busy; | ||
1980 | if (acb->ACBFlag & (RESET_DETECT|RESET_DONE|RESET_DEV)) | ||
1981 | goto host_busy; | ||
1982 | |||
1983 | srb = acb->pFreeSRB; | ||
1984 | if (unlikely(srb == NULL)) | ||
1985 | goto host_busy; | ||
1986 | |||
1987 | cmd->scsi_done = done; | ||
1988 | cmd->result = 0; | ||
1989 | acb->Cmds++; | ||
1990 | |||
1991 | acb->pFreeSRB = srb->pNextSRB; | ||
1992 | srb->pNextSRB = NULL; | ||
1993 | |||
1994 | srb->pSRBDCB = dcb; | ||
1995 | srb->pcmd = cmd; | ||
1996 | cmd->host_scribble = (char *)srb; | ||
1997 | |||
1998 | srb->SGIndex = 0; | ||
1999 | srb->AdaptStatus = 0; | ||
2000 | srb->TargetStatus = 0; | ||
2001 | srb->MsgCnt = 0; | ||
2002 | |||
2003 | srb->SRBStatus = 0; | ||
2004 | srb->SRBFlag = 0; | ||
2005 | srb->SRBState = 0; | ||
2006 | srb->TotalXferredLen = 0; | ||
2007 | srb->SGBusAddr = 0; | ||
2008 | srb->SGToBeXferLen = 0; | ||
2009 | srb->ScsiPhase = 0; | ||
2010 | srb->EndMessage = 0; | ||
2011 | srb->TagNumber = SCSI_NO_TAG; | ||
2012 | |||
2013 | if (dc390_StartSCSI(acb, dcb, srb)) { | ||
2014 | dc390_Free_insert(acb, srb); | ||
2015 | goto host_busy; | ||
2016 | } | ||
2017 | |||
2018 | dc390_Going_append(dcb, srb); | ||
2019 | |||
2020 | return 0; | ||
2021 | |||
2022 | host_busy: | ||
2023 | return SCSI_MLQUEUE_HOST_BUSY; | ||
2024 | |||
2025 | device_busy: | ||
2026 | return SCSI_MLQUEUE_DEVICE_BUSY; | ||
2027 | } | ||
2028 | |||
2029 | static void dc390_dumpinfo (struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB) | ||
2030 | { | ||
2031 | struct pci_dev *pdev; | ||
2032 | u16 pstat; | ||
2033 | |||
2034 | if (!pDCB) pDCB = pACB->pActiveDCB; | ||
2035 | if (!pSRB && pDCB) pSRB = pDCB->pActiveSRB; | ||
2036 | |||
2037 | if (pSRB) | ||
2038 | { | ||
2039 | printk ("DC390: SRB: Xferred %08lx, Remain %08lx, State %08x, Phase %02x\n", | ||
2040 | pSRB->TotalXferredLen, pSRB->SGToBeXferLen, pSRB->SRBState, | ||
2041 | pSRB->ScsiPhase); | ||
2042 | printk ("DC390: AdpaterStatus: %02x, SRB Status %02x\n", pSRB->AdaptStatus, pSRB->SRBStatus); | ||
2043 | } | ||
2044 | printk ("DC390: Status of last IRQ (DMA/SC/Int/IRQ): %08x\n", dc390_laststatus); | ||
2045 | printk ("DC390: Register dump: SCSI block:\n"); | ||
2046 | printk ("DC390: XferCnt Cmd Stat IntS IRQS FFIS Ctl1 Ctl2 Ctl3 Ctl4\n"); | ||
2047 | printk ("DC390: %06x %02x %02x %02x", | ||
2048 | DC390_read8(CtcReg_Low) + (DC390_read8(CtcReg_Mid) << 8) + (DC390_read8(CtcReg_High) << 16), | ||
2049 | DC390_read8(ScsiCmd), DC390_read8(Scsi_Status), DC390_read8(Intern_State)); | ||
2050 | printk (" %02x %02x %02x %02x %02x %02x\n", | ||
2051 | DC390_read8(INT_Status), DC390_read8(Current_Fifo), DC390_read8(CtrlReg1), | ||
2052 | DC390_read8(CtrlReg2), DC390_read8(CtrlReg3), DC390_read8(CtrlReg4)); | ||
2053 | DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT); | ||
2054 | if (DC390_read8(Current_Fifo) & 0x1f) | ||
2055 | { | ||
2056 | printk ("DC390: FIFO:"); | ||
2057 | while (DC390_read8(Current_Fifo) & 0x1f) printk (" %02x", DC390_read8(ScsiFifo)); | ||
2058 | printk ("\n"); | ||
2059 | } | ||
2060 | printk ("DC390: Register dump: DMA engine:\n"); | ||
2061 | printk ("DC390: Cmd STrCnt SBusA WrkBC WrkAC Stat SBusCtrl\n"); | ||
2062 | printk ("DC390: %02x %08x %08x %08x %08x %02x %08x\n", | ||
2063 | DC390_read8(DMA_Cmd), DC390_read32(DMA_XferCnt), DC390_read32(DMA_XferAddr), | ||
2064 | DC390_read32(DMA_Wk_ByteCntr), DC390_read32(DMA_Wk_AddrCntr), | ||
2065 | DC390_read8(DMA_Status), DC390_read32(DMA_ScsiBusCtrl)); | ||
2066 | DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT); | ||
2067 | |||
2068 | pdev = pACB->pdev; | ||
2069 | pci_read_config_word(pdev, PCI_STATUS, &pstat); | ||
2070 | printk ("DC390: Register dump: PCI Status: %04x\n", pstat); | ||
2071 | printk ("DC390: In case of driver trouble read Documentation/scsi/tmscsim.txt\n"); | ||
2072 | } | ||
2073 | |||
2074 | |||
2075 | static int DC390_abort(struct scsi_cmnd *cmd) | ||
2076 | { | ||
2077 | struct dc390_acb *pACB = (struct dc390_acb*) cmd->device->host->hostdata; | ||
2078 | struct dc390_dcb *pDCB = (struct dc390_dcb*) cmd->device->hostdata; | ||
2079 | |||
2080 | printk("DC390: Abort command (pid %li, Device %02i-%02i)\n", | ||
2081 | cmd->pid, cmd->device->id, cmd->device->lun); | ||
2082 | |||
2083 | /* abort() is too stupid for already sent commands at the moment. | ||
2084 | * If it's called we are in trouble anyway, so let's dump some info | ||
2085 | * into the syslog at least. (KG, 98/08/20,99/06/20) */ | ||
2086 | dc390_dumpinfo(pACB, pDCB, NULL); | ||
2087 | |||
2088 | pDCB->DCBFlag |= ABORT_DEV_; | ||
2089 | printk(KERN_INFO "DC390: Aborted pid %li\n", cmd->pid); | ||
2090 | |||
2091 | return FAILED; | ||
2092 | } | ||
2093 | |||
2094 | |||
2095 | static void dc390_ResetDevParam( struct dc390_acb* pACB ) | ||
2096 | { | ||
2097 | struct dc390_dcb *pDCB, *pdcb; | ||
2098 | |||
2099 | pDCB = pACB->pLinkDCB; | ||
2100 | if (! pDCB) return; | ||
2101 | pdcb = pDCB; | ||
2102 | do | ||
2103 | { | ||
2104 | pDCB->SyncMode &= ~SYNC_NEGO_DONE; | ||
2105 | pDCB->SyncPeriod = 0; | ||
2106 | pDCB->SyncOffset = 0; | ||
2107 | pDCB->TagMask = 0; | ||
2108 | pDCB->CtrlR3 = FAST_CLK; | ||
2109 | pDCB->CtrlR4 &= NEGATE_REQACKDATA | CTRL4_RESERVED | NEGATE_REQACK; | ||
2110 | pDCB->CtrlR4 |= pACB->glitch_cfg; | ||
2111 | pDCB = pDCB->pNextDCB; | ||
2112 | } | ||
2113 | while( pdcb != pDCB ); | ||
2114 | pACB->ACBFlag &= ~(RESET_DEV | RESET_DONE | RESET_DETECT); | ||
2115 | |||
2116 | } | ||
2117 | |||
2118 | static int DC390_bus_reset (struct scsi_cmnd *cmd) | ||
2119 | { | ||
2120 | struct dc390_acb* pACB = (struct dc390_acb*) cmd->device->host->hostdata; | ||
2121 | u8 bval; | ||
2122 | |||
2123 | bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST; | ||
2124 | DC390_write8(CtrlReg1, bval); /* disable IRQ on bus reset */ | ||
2125 | |||
2126 | pACB->ACBFlag |= RESET_DEV; | ||
2127 | dc390_ResetSCSIBus(pACB); | ||
2128 | |||
2129 | dc390_ResetDevParam(pACB); | ||
2130 | udelay(1000); | ||
2131 | pACB->pScsiHost->last_reset = jiffies + 3*HZ/2 | ||
2132 | + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]; | ||
2133 | |||
2134 | DC390_write8(ScsiCmd, CLEAR_FIFO_CMD); | ||
2135 | DC390_read8(INT_Status); /* Reset Pending INT */ | ||
2136 | |||
2137 | dc390_DoingSRB_Done(pACB, cmd); | ||
2138 | |||
2139 | pACB->pActiveDCB = NULL; | ||
2140 | pACB->ACBFlag = 0; | ||
2141 | |||
2142 | bval = DC390_read8(CtrlReg1) & ~DIS_INT_ON_SCSI_RST; | ||
2143 | DC390_write8(CtrlReg1, bval); /* re-enable interrupt */ | ||
2144 | |||
2145 | return SUCCESS; | ||
2146 | } | ||
2147 | |||
2148 | /** | ||
2149 | * dc390_slave_alloc - Called by the scsi mid layer to tell us about a new | ||
2150 | * scsi device that we need to deal with. | ||
2151 | * | ||
2152 | * @scsi_device: The new scsi device that we need to handle. | ||
2153 | */ | ||
2154 | static int dc390_slave_alloc(struct scsi_device *scsi_device) | ||
2155 | { | ||
2156 | struct dc390_acb *pACB = (struct dc390_acb*) scsi_device->host->hostdata; | ||
2157 | struct dc390_dcb *pDCB, *pDCB2 = NULL; | ||
2158 | uint id = scsi_device->id; | ||
2159 | uint lun = scsi_device->lun; | ||
2160 | |||
2161 | pDCB = kmalloc(sizeof(struct dc390_dcb), GFP_KERNEL); | ||
2162 | if (!pDCB) | ||
2163 | return -ENOMEM; | ||
2164 | memset(pDCB, 0, sizeof(struct dc390_dcb)); | ||
2165 | |||
2166 | if (!pACB->DCBCnt++) { | ||
2167 | pACB->pLinkDCB = pDCB; | ||
2168 | pACB->pDCBRunRobin = pDCB; | ||
2169 | } else { | ||
2170 | pACB->pLastDCB->pNextDCB = pDCB; | ||
2171 | } | ||
2172 | |||
2173 | pDCB->pNextDCB = pACB->pLinkDCB; | ||
2174 | pACB->pLastDCB = pDCB; | ||
2175 | |||
2176 | pDCB->pDCBACB = pACB; | ||
2177 | pDCB->TargetID = id; | ||
2178 | pDCB->TargetLUN = lun; | ||
2179 | |||
2180 | /* | ||
2181 | * Some values are for all LUNs: Copy them | ||
2182 | * In a clean way: We would have an own structure for a SCSI-ID | ||
2183 | */ | ||
2184 | if (lun && (pDCB2 = dc390_findDCB(pACB, id, 0))) { | ||
2185 | pDCB->DevMode = pDCB2->DevMode; | ||
2186 | pDCB->SyncMode = pDCB2->SyncMode & SYNC_NEGO_DONE; | ||
2187 | pDCB->SyncPeriod = pDCB2->SyncPeriod; | ||
2188 | pDCB->SyncOffset = pDCB2->SyncOffset; | ||
2189 | pDCB->NegoPeriod = pDCB2->NegoPeriod; | ||
2190 | |||
2191 | pDCB->CtrlR3 = pDCB2->CtrlR3; | ||
2192 | pDCB->CtrlR4 = pDCB2->CtrlR4; | ||
2193 | } else { | ||
2194 | u8 index = pACB->AdapterIndex; | ||
2195 | PEEprom prom = (PEEprom) &dc390_eepromBuf[index][id << 2]; | ||
2196 | |||
2197 | pDCB->DevMode = prom->EE_MODE1; | ||
2198 | pDCB->NegoPeriod = | ||
2199 | (dc390_clock_period1[prom->EE_SPEED] * 25) >> 2; | ||
2200 | pDCB->CtrlR3 = FAST_CLK; | ||
2201 | pDCB->CtrlR4 = pACB->glitch_cfg | CTRL4_RESERVED; | ||
2202 | if (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION) | ||
2203 | pDCB->CtrlR4 |= NEGATE_REQACKDATA | NEGATE_REQACK; | ||
2204 | } | ||
2205 | |||
2206 | if (pDCB->DevMode & SYNC_NEGO_) | ||
2207 | pDCB->SyncMode |= SYNC_ENABLE; | ||
2208 | else { | ||
2209 | pDCB->SyncMode = 0; | ||
2210 | pDCB->SyncOffset &= ~0x0f; | ||
2211 | } | ||
2212 | |||
2213 | pDCB->CtrlR1 = pACB->pScsiHost->this_id; | ||
2214 | if (pDCB->DevMode & PARITY_CHK_) | ||
2215 | pDCB->CtrlR1 |= PARITY_ERR_REPO; | ||
2216 | |||
2217 | pACB->scan_devices = 1; | ||
2218 | scsi_device->hostdata = pDCB; | ||
2219 | return 0; | ||
2220 | } | ||
2221 | |||
2222 | /** | ||
2223 | * dc390_slave_destroy - Called by the scsi mid layer to tell us about a | ||
2224 | * device that is going away. | ||
2225 | * | ||
2226 | * @scsi_device: The scsi device that we need to remove. | ||
2227 | */ | ||
2228 | static void dc390_slave_destroy(struct scsi_device *scsi_device) | ||
2229 | { | ||
2230 | struct dc390_acb* pACB = (struct dc390_acb*) scsi_device->host->hostdata; | ||
2231 | struct dc390_dcb* pDCB = (struct dc390_dcb*) scsi_device->hostdata; | ||
2232 | struct dc390_dcb* pPrevDCB = pACB->pLinkDCB; | ||
2233 | |||
2234 | pACB->scan_devices = 0; | ||
2235 | |||
2236 | BUG_ON(pDCB->GoingSRBCnt > 1); | ||
2237 | |||
2238 | if (pDCB == pACB->pLinkDCB) { | ||
2239 | if (pACB->pLastDCB == pDCB) { | ||
2240 | pDCB->pNextDCB = NULL; | ||
2241 | pACB->pLastDCB = NULL; | ||
2242 | } | ||
2243 | pACB->pLinkDCB = pDCB->pNextDCB; | ||
2244 | } else { | ||
2245 | while (pPrevDCB->pNextDCB != pDCB) | ||
2246 | pPrevDCB = pPrevDCB->pNextDCB; | ||
2247 | pPrevDCB->pNextDCB = pDCB->pNextDCB; | ||
2248 | if (pDCB == pACB->pLastDCB) | ||
2249 | pACB->pLastDCB = pPrevDCB; | ||
2250 | } | ||
2251 | |||
2252 | if (pDCB == pACB->pActiveDCB) | ||
2253 | pACB->pActiveDCB = NULL; | ||
2254 | if (pDCB == pACB->pLinkDCB) | ||
2255 | pACB->pLinkDCB = pDCB->pNextDCB; | ||
2256 | if (pDCB == pACB->pDCBRunRobin) | ||
2257 | pACB->pDCBRunRobin = pDCB->pNextDCB; | ||
2258 | kfree(pDCB); | ||
2259 | |||
2260 | pACB->DCBCnt--; | ||
2261 | } | ||
2262 | |||
2263 | static int dc390_slave_configure(struct scsi_device *sdev) | ||
2264 | { | ||
2265 | struct dc390_acb *acb = (struct dc390_acb *)sdev->host->hostdata; | ||
2266 | struct dc390_dcb *dcb = (struct dc390_dcb *)sdev->hostdata; | ||
2267 | |||
2268 | acb->scan_devices = 0; | ||
2269 | if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) { | ||
2270 | dcb->SyncMode |= EN_TAG_QUEUEING; | ||
2271 | scsi_activate_tcq(sdev, acb->TagMaxNum); | ||
2272 | } | ||
2273 | |||
2274 | return 0; | ||
2275 | } | ||
2276 | |||
2277 | static struct scsi_host_template driver_template = { | ||
2278 | .module = THIS_MODULE, | ||
2279 | .proc_name = "tmscsim", | ||
2280 | .name = DC390_BANNER " V" DC390_VERSION, | ||
2281 | .slave_alloc = dc390_slave_alloc, | ||
2282 | .slave_configure = dc390_slave_configure, | ||
2283 | .slave_destroy = dc390_slave_destroy, | ||
2284 | .queuecommand = DC390_queuecommand, | ||
2285 | .eh_abort_handler = DC390_abort, | ||
2286 | .eh_bus_reset_handler = DC390_bus_reset, | ||
2287 | .can_queue = 1, | ||
2288 | .this_id = 7, | ||
2289 | .sg_tablesize = SG_ALL, | ||
2290 | .cmd_per_lun = 1, | ||
2291 | .use_clustering = DISABLE_CLUSTERING, | ||
2292 | }; | ||
2293 | |||
2294 | /*********************************************************************** | ||
2295 | * Functions for access to DC390 EEPROM | ||
2296 | * and some to emulate it | ||
2297 | * | ||
2298 | **********************************************************************/ | ||
2299 | |||
2300 | static void __devinit dc390_eeprom_prepare_read(struct pci_dev *pdev, u8 cmd) | ||
2301 | { | ||
2302 | u8 carryFlag = 1, j = 0x80, bval; | ||
2303 | int i; | ||
2304 | |||
2305 | for (i = 0; i < 9; i++) { | ||
2306 | if (carryFlag) { | ||
2307 | pci_write_config_byte(pdev, 0x80, 0x40); | ||
2308 | bval = 0xc0; | ||
2309 | } else | ||
2310 | bval = 0x80; | ||
2311 | |||
2312 | udelay(160); | ||
2313 | pci_write_config_byte(pdev, 0x80, bval); | ||
2314 | udelay(160); | ||
2315 | pci_write_config_byte(pdev, 0x80, 0); | ||
2316 | udelay(160); | ||
2317 | |||
2318 | carryFlag = (cmd & j) ? 1 : 0; | ||
2319 | j >>= 1; | ||
2320 | } | ||
2321 | } | ||
2322 | |||
2323 | static u16 __devinit dc390_eeprom_get_data(struct pci_dev *pdev) | ||
2324 | { | ||
2325 | int i; | ||
2326 | u16 wval = 0; | ||
2327 | u8 bval; | ||
2328 | |||
2329 | for (i = 0; i < 16; i++) { | ||
2330 | wval <<= 1; | ||
2331 | |||
2332 | pci_write_config_byte(pdev, 0x80, 0x80); | ||
2333 | udelay(160); | ||
2334 | pci_write_config_byte(pdev, 0x80, 0x40); | ||
2335 | udelay(160); | ||
2336 | pci_read_config_byte(pdev, 0x00, &bval); | ||
2337 | |||
2338 | if (bval == 0x22) | ||
2339 | wval |= 1; | ||
2340 | } | ||
2341 | |||
2342 | return wval; | ||
2343 | } | ||
2344 | |||
2345 | static void __devinit dc390_read_eeprom(struct pci_dev *pdev, u16 *ptr) | ||
2346 | { | ||
2347 | u8 cmd = EEPROM_READ, i; | ||
2348 | |||
2349 | for (i = 0; i < 0x40; i++) { | ||
2350 | pci_write_config_byte(pdev, 0xc0, 0); | ||
2351 | udelay(160); | ||
2352 | |||
2353 | dc390_eeprom_prepare_read(pdev, cmd++); | ||
2354 | *ptr++ = dc390_eeprom_get_data(pdev); | ||
2355 | |||
2356 | pci_write_config_byte(pdev, 0x80, 0); | ||
2357 | pci_write_config_byte(pdev, 0x80, 0); | ||
2358 | udelay(160); | ||
2359 | } | ||
2360 | } | ||
2361 | |||
2362 | /* Override EEprom values with explicitly set values */ | ||
2363 | static void __devinit dc390_eeprom_override(u8 index) | ||
2364 | { | ||
2365 | u8 *ptr = (u8 *) dc390_eepromBuf[index], id; | ||
2366 | |||
2367 | /* Adapter Settings */ | ||
2368 | if (tmscsim[0] != -2) | ||
2369 | ptr[EE_ADAPT_SCSI_ID] = (u8)tmscsim[0]; /* Adapter ID */ | ||
2370 | if (tmscsim[3] != -2) | ||
2371 | ptr[EE_MODE2] = (u8)tmscsim[3]; | ||
2372 | if (tmscsim[5] != -2) | ||
2373 | ptr[EE_DELAY] = tmscsim[5]; /* Reset delay */ | ||
2374 | if (tmscsim[4] != -2) | ||
2375 | ptr[EE_TAG_CMD_NUM] = (u8)tmscsim[4]; /* Tagged Cmds */ | ||
2376 | |||
2377 | /* Device Settings */ | ||
2378 | for (id = 0; id < MAX_SCSI_ID; id++) { | ||
2379 | if (tmscsim[2] != -2) | ||
2380 | ptr[id << 2] = (u8)tmscsim[2]; /* EE_MODE1 */ | ||
2381 | if (tmscsim[1] != -2) | ||
2382 | ptr[(id << 2) + 1] = (u8)tmscsim[1]; /* EE_Speed */ | ||
2383 | } | ||
2384 | } | ||
2385 | |||
2386 | static int __devinitdata tmscsim_def[] = { | ||
2387 | 7, | ||
2388 | 0 /* 10MHz */, | ||
2389 | PARITY_CHK_ | SEND_START_ | EN_DISCONNECT_ | SYNC_NEGO_ | TAG_QUEUEING_, | ||
2390 | MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION | LUN_CHECK, | ||
2391 | 3 /* 16 Tags per LUN */, | ||
2392 | 1 /* s delay after Reset */, | ||
2393 | }; | ||
2394 | |||
2395 | /* Copy defaults over set values where missing */ | ||
2396 | static void __devinit dc390_fill_with_defaults (void) | ||
2397 | { | ||
2398 | int i; | ||
2399 | |||
2400 | for (i = 0; i < 6; i++) { | ||
2401 | if (tmscsim[i] < 0 || tmscsim[i] > 255) | ||
2402 | tmscsim[i] = tmscsim_def[i]; | ||
2403 | } | ||
2404 | |||
2405 | /* Sanity checks */ | ||
2406 | if (tmscsim[0] > 7) | ||
2407 | tmscsim[0] = 7; | ||
2408 | if (tmscsim[1] > 7) | ||
2409 | tmscsim[1] = 4; | ||
2410 | if (tmscsim[4] > 5) | ||
2411 | tmscsim[4] = 4; | ||
2412 | if (tmscsim[5] > 180) | ||
2413 | tmscsim[5] = 180; | ||
2414 | } | ||
2415 | |||
2416 | static void __devinit dc390_check_eeprom(struct pci_dev *pdev, u8 index) | ||
2417 | { | ||
2418 | u8 interpd[] = {1, 3, 5, 10, 16, 30, 60, 120}; | ||
2419 | u8 EEbuf[128]; | ||
2420 | u16 *ptr = (u16 *)EEbuf, wval = 0; | ||
2421 | int i; | ||
2422 | |||
2423 | dc390_read_eeprom(pdev, ptr); | ||
2424 | memcpy(dc390_eepromBuf[index], EEbuf, EE_ADAPT_SCSI_ID); | ||
2425 | memcpy(&dc390_eepromBuf[index][EE_ADAPT_SCSI_ID], | ||
2426 | &EEbuf[REAL_EE_ADAPT_SCSI_ID], EE_LEN - EE_ADAPT_SCSI_ID); | ||
2427 | |||
2428 | dc390_eepromBuf[index][EE_DELAY] = interpd[dc390_eepromBuf[index][EE_DELAY]]; | ||
2429 | |||
2430 | for (i = 0; i < 0x40; i++, ptr++) | ||
2431 | wval += *ptr; | ||
2432 | |||
2433 | /* no Tekram EEprom found */ | ||
2434 | if (wval != 0x1234) { | ||
2435 | int speed; | ||
2436 | |||
2437 | printk(KERN_INFO "DC390_init: No EEPROM found! Trying default settings ...\n"); | ||
2438 | |||
2439 | /* | ||
2440 | * XXX(hch): bogus, because we might have tekram and | ||
2441 | * non-tekram hbas in a single machine. | ||
2442 | */ | ||
2443 | dc390_fill_with_defaults(); | ||
2444 | |||
2445 | speed = dc390_clock_speed[tmscsim[1]]; | ||
2446 | printk(KERN_INFO "DC390: Used defaults: AdaptID=%i, SpeedIdx=%i (%i.%i MHz), " | ||
2447 | "DevMode=0x%02x, AdaptMode=0x%02x, TaggedCmnds=%i (%i), DelayReset=%is\n", | ||
2448 | tmscsim[0], tmscsim[1], speed / 10, speed % 10, | ||
2449 | (u8)tmscsim[2], (u8)tmscsim[3], tmscsim[4], 2 << (tmscsim[4]), tmscsim[5]); | ||
2450 | } | ||
2451 | } | ||
2452 | |||
2453 | static void __devinit dc390_init_hw(struct dc390_acb *pACB, u8 index) | ||
2454 | { | ||
2455 | struct Scsi_Host *shost = pACB->pScsiHost; | ||
2456 | u8 dstate; | ||
2457 | |||
2458 | /* Disable SCSI bus reset interrupt */ | ||
2459 | DC390_write8(CtrlReg1, DIS_INT_ON_SCSI_RST | shost->this_id); | ||
2460 | |||
2461 | if (pACB->Gmode2 & RST_SCSI_BUS) { | ||
2462 | dc390_ResetSCSIBus(pACB); | ||
2463 | udelay(1000); | ||
2464 | shost->last_reset = jiffies + HZ/2 + | ||
2465 | HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]; | ||
2466 | } | ||
2467 | |||
2468 | pACB->ACBFlag = 0; | ||
2469 | |||
2470 | /* Reset Pending INT */ | ||
2471 | DC390_read8(INT_Status); | ||
2472 | |||
2473 | /* 250ms selection timeout */ | ||
2474 | DC390_write8(Scsi_TimeOut, SEL_TIMEOUT); | ||
2475 | |||
2476 | /* Conversion factor = 0 , 40MHz clock */ | ||
2477 | DC390_write8(Clk_Factor, CLK_FREQ_40MHZ); | ||
2478 | |||
2479 | /* NOP cmd - clear command register */ | ||
2480 | DC390_write8(ScsiCmd, NOP_CMD); | ||
2481 | |||
2482 | /* Enable Feature and SCSI-2 */ | ||
2483 | DC390_write8(CtrlReg2, EN_FEATURE+EN_SCSI2_CMD); | ||
2484 | |||
2485 | /* Fast clock */ | ||
2486 | DC390_write8(CtrlReg3, FAST_CLK); | ||
2487 | |||
2488 | /* Negation */ | ||
2489 | DC390_write8(CtrlReg4, pACB->glitch_cfg | /* glitch eater */ | ||
2490 | (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION) ? | ||
2491 | NEGATE_REQACKDATA : 0); | ||
2492 | |||
2493 | /* Clear Transfer Count High: ID */ | ||
2494 | DC390_write8(CtcReg_High, 0); | ||
2495 | DC390_write8(DMA_Cmd, DMA_IDLE_CMD); | ||
2496 | DC390_write8(ScsiCmd, CLEAR_FIFO_CMD); | ||
2497 | DC390_write32(DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT); | ||
2498 | |||
2499 | dstate = DC390_read8(DMA_Status); | ||
2500 | DC390_write8(DMA_Status, dstate); | ||
2501 | } | ||
2502 | |||
2503 | static int __devinit dc390_probe_one(struct pci_dev *pdev, | ||
2504 | const struct pci_device_id *id) | ||
2505 | { | ||
2506 | struct dc390_acb *pACB; | ||
2507 | struct Scsi_Host *shost; | ||
2508 | unsigned long io_port; | ||
2509 | int error = -ENODEV, i; | ||
2510 | |||
2511 | if (pci_enable_device(pdev)) | ||
2512 | goto out; | ||
2513 | |||
2514 | pci_set_master(pdev); | ||
2515 | |||
2516 | error = -ENOMEM; | ||
2517 | shost = scsi_host_alloc(&driver_template, sizeof(struct dc390_acb)); | ||
2518 | if (!shost) | ||
2519 | goto out_disable_device; | ||
2520 | |||
2521 | pACB = (struct dc390_acb *)shost->hostdata; | ||
2522 | memset(pACB, 0, sizeof(struct dc390_acb)); | ||
2523 | |||
2524 | dc390_check_eeprom(pdev, dc390_adapterCnt); | ||
2525 | dc390_eeprom_override(dc390_adapterCnt); | ||
2526 | |||
2527 | io_port = pci_resource_start(pdev, 0); | ||
2528 | |||
2529 | shost->this_id = dc390_eepromBuf[dc390_adapterCnt][EE_ADAPT_SCSI_ID]; | ||
2530 | shost->io_port = io_port; | ||
2531 | shost->n_io_port = 0x80; | ||
2532 | shost->irq = pdev->irq; | ||
2533 | shost->base = io_port; | ||
2534 | shost->unique_id = io_port; | ||
2535 | shost->last_reset = jiffies; | ||
2536 | |||
2537 | pACB->pScsiHost = shost; | ||
2538 | pACB->IOPortBase = (u16) io_port; | ||
2539 | pACB->IRQLevel = pdev->irq; | ||
2540 | |||
2541 | shost->max_id = 8; | ||
2542 | |||
2543 | if (shost->max_id - 1 == | ||
2544 | dc390_eepromBuf[dc390_adapterCnt][EE_ADAPT_SCSI_ID]) | ||
2545 | shost->max_id--; | ||
2546 | |||
2547 | if (dc390_eepromBuf[dc390_adapterCnt][EE_MODE2] & LUN_CHECK) | ||
2548 | shost->max_lun = 8; | ||
2549 | else | ||
2550 | shost->max_lun = 1; | ||
2551 | |||
2552 | pACB->pFreeSRB = pACB->SRB_array; | ||
2553 | pACB->SRBCount = MAX_SRB_CNT; | ||
2554 | pACB->AdapterIndex = dc390_adapterCnt; | ||
2555 | pACB->TagMaxNum = | ||
2556 | 2 << dc390_eepromBuf[dc390_adapterCnt][EE_TAG_CMD_NUM]; | ||
2557 | pACB->Gmode2 = dc390_eepromBuf[dc390_adapterCnt][EE_MODE2]; | ||
2558 | |||
2559 | for (i = 0; i < pACB->SRBCount-1; i++) | ||
2560 | pACB->SRB_array[i].pNextSRB = &pACB->SRB_array[i+1]; | ||
2561 | pACB->SRB_array[pACB->SRBCount-1].pNextSRB = NULL; | ||
2562 | pACB->pTmpSRB = &pACB->TmpSRB; | ||
2563 | |||
2564 | pACB->sel_timeout = SEL_TIMEOUT; | ||
2565 | pACB->glitch_cfg = EATER_25NS; | ||
2566 | pACB->pdev = pdev; | ||
2567 | |||
2568 | if (!request_region(io_port, shost->n_io_port, "tmscsim")) { | ||
2569 | printk(KERN_ERR "DC390: register IO ports error!\n"); | ||
2570 | goto out_host_put; | ||
2571 | } | ||
2572 | |||
2573 | /* Reset Pending INT */ | ||
2574 | DC390_read8_(INT_Status, io_port); | ||
2575 | |||
2576 | if (request_irq(pdev->irq, do_DC390_Interrupt, SA_SHIRQ, | ||
2577 | "tmscsim", pACB)) { | ||
2578 | printk(KERN_ERR "DC390: register IRQ error!\n"); | ||
2579 | goto out_release_region; | ||
2580 | } | ||
2581 | |||
2582 | dc390_init_hw(pACB, dc390_adapterCnt); | ||
2583 | |||
2584 | dc390_adapterCnt++; | ||
2585 | |||
2586 | pci_set_drvdata(pdev, shost); | ||
2587 | |||
2588 | error = scsi_add_host(shost, &pdev->dev); | ||
2589 | if (error) | ||
2590 | goto out_free_irq; | ||
2591 | scsi_scan_host(shost); | ||
2592 | return 0; | ||
2593 | |||
2594 | out_free_irq: | ||
2595 | free_irq(pdev->irq, pACB); | ||
2596 | out_release_region: | ||
2597 | release_region(io_port, shost->n_io_port); | ||
2598 | out_host_put: | ||
2599 | scsi_host_put(shost); | ||
2600 | out_disable_device: | ||
2601 | pci_disable_device(pdev); | ||
2602 | out: | ||
2603 | return error; | ||
2604 | } | ||
2605 | |||
2606 | /** | ||
2607 | * dc390_remove_one - Called to remove a single instance of the adapter. | ||
2608 | * | ||
2609 | * @dev: The PCI device to remove. | ||
2610 | */ | ||
2611 | static void __devexit dc390_remove_one(struct pci_dev *dev) | ||
2612 | { | ||
2613 | struct Scsi_Host *scsi_host = pci_get_drvdata(dev); | ||
2614 | unsigned long iflags; | ||
2615 | struct dc390_acb* pACB = (struct dc390_acb*) scsi_host->hostdata; | ||
2616 | u8 bval; | ||
2617 | |||
2618 | scsi_remove_host(scsi_host); | ||
2619 | |||
2620 | spin_lock_irqsave(scsi_host->host_lock, iflags); | ||
2621 | pACB->ACBFlag = RESET_DEV; | ||
2622 | bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST; | ||
2623 | DC390_write8 (CtrlReg1, bval); /* disable interrupt */ | ||
2624 | if (pACB->Gmode2 & RST_SCSI_BUS) | ||
2625 | dc390_ResetSCSIBus(pACB); | ||
2626 | spin_unlock_irqrestore(scsi_host->host_lock, iflags); | ||
2627 | |||
2628 | free_irq(scsi_host->irq, pACB); | ||
2629 | release_region(scsi_host->io_port, scsi_host->n_io_port); | ||
2630 | |||
2631 | pci_disable_device(dev); | ||
2632 | scsi_host_put(scsi_host); | ||
2633 | pci_set_drvdata(dev, NULL); | ||
2634 | } | ||
2635 | |||
2636 | static struct pci_device_id tmscsim_pci_tbl[] = { | ||
2637 | { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD53C974, | ||
2638 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | ||
2639 | { } | ||
2640 | }; | ||
2641 | MODULE_DEVICE_TABLE(pci, tmscsim_pci_tbl); | ||
2642 | |||
2643 | static struct pci_driver dc390_driver = { | ||
2644 | .name = "tmscsim", | ||
2645 | .id_table = tmscsim_pci_tbl, | ||
2646 | .probe = dc390_probe_one, | ||
2647 | .remove = __devexit_p(dc390_remove_one), | ||
2648 | }; | ||
2649 | |||
2650 | static int __init dc390_module_init(void) | ||
2651 | { | ||
2652 | if (tmscsim[0] == -1 || tmscsim[0] > 15) { | ||
2653 | tmscsim[0] = 7; | ||
2654 | tmscsim[1] = 4; | ||
2655 | tmscsim[2] = PARITY_CHK_ | TAG_QUEUEING_; | ||
2656 | tmscsim[3] = MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION; | ||
2657 | tmscsim[4] = 2; | ||
2658 | tmscsim[5] = 10; | ||
2659 | printk (KERN_INFO "DC390: Using safe settings.\n"); | ||
2660 | } | ||
2661 | |||
2662 | return pci_module_init(&dc390_driver); | ||
2663 | } | ||
2664 | |||
2665 | static void __exit dc390_module_exit(void) | ||
2666 | { | ||
2667 | pci_unregister_driver(&dc390_driver); | ||
2668 | } | ||
2669 | |||
2670 | module_init(dc390_module_init); | ||
2671 | module_exit(dc390_module_exit); | ||
2672 | |||
2673 | #ifndef MODULE | ||
2674 | static int __init dc390_setup (char *str) | ||
2675 | { | ||
2676 | int ints[8],i, im; | ||
2677 | |||
2678 | get_options(str, ARRAY_SIZE(ints), ints); | ||
2679 | im = ints[0]; | ||
2680 | |||
2681 | if (im > 6) { | ||
2682 | printk (KERN_NOTICE "DC390: ignore extra params!\n"); | ||
2683 | im = 6; | ||
2684 | } | ||
2685 | |||
2686 | for (i = 0; i < im; i++) | ||
2687 | tmscsim[i] = ints[i+1]; | ||
2688 | /* dc390_checkparams (); */ | ||
2689 | return 1; | ||
2690 | } | ||
2691 | |||
2692 | __setup("tmscsim=", dc390_setup); | ||
2693 | #endif | ||