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 ************************************************************************
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 *
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)*
44 * 1.20b 98/05/12 KG bugs: version, kfree, _ctmp *
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 *
77 * 1.20r 98/06/30 KG Debug macros, allow disabling DsCn, set *
78 * BIT4 in CtrlR4, EN_PAGE_INT, 2.0 module *
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 *
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*
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 *
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 *
171 * 2.1b 04/04/13 GL Fix for 64-bit platforms *
172 * 2.1b1 04/01/31 GL (applied 05.04) Remove internal *
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 *
180 ***********************************************************************/
182 /* Uncomment SA_INTERRUPT, if the driver refuses to share its IRQ with other devices */
183 #define DC390_IRQ SA_SHIRQ /* | SA_INTERRUPT */
186 //#define DC390_DEBUG0
187 //#define DC390_DEBUG1
188 //#define DC390_DCBDEBUG
189 //#define DC390_PARSEDEBUG
190 //#define DC390_REMOVABLEDEBUG
191 //#define DC390_LOCKDEBUG
193 //#define NOP do{}while(0)
196 /* Debug definitions */
200 # define DEBUG0(x) C_NOP
205 # define DEBUG1(x) C_NOP
207 #ifdef DC390_DCBDEBUG
208 # define DCBDEBUG(x) x
210 # define DCBDEBUG(x) C_NOP
212 #ifdef DC390_PARSEDEBUG
213 # define PARSEDEBUG(x) x
215 # define PARSEDEBUG(x) C_NOP
217 #ifdef DC390_REMOVABLEDEBUG
218 # define REMOVABLEDEBUG(x) x
220 # define REMOVABLEDEBUG(x) C_NOP
222 #define DCBDEBUG1(x) C_NOP
224 #include <linux/config.h>
225 #include <linux/module.h>
226 #include <linux/delay.h>
227 #include <linux/signal.h>
228 #include <linux/sched.h>
229 #include <linux/errno.h>
230 #include <linux/kernel.h>
231 #include <linux/ioport.h>
232 #include <linux/pci.h>
233 #include <linux/proc_fs.h>
234 #include <linux/string.h>
235 #include <linux/mm.h>
236 #include <linux/blkdev.h>
237 #include <linux/timer.h>
238 #include <linux/interrupt.h>
239 #include <linux/init.h>
240 #include <linux/spinlock.h>
244 #include <scsi/scsi.h>
245 #include <scsi/scsi_cmnd.h>
246 #include <scsi/scsi_device.h>
250 #include <scsi/scsi_host.h>
251 #include <scsi/scsicam.h>
255 #define PCI_DEVICE_ID_AMD53C974 PCI_DEVICE_ID_AMD_SCSI
258 static struct pci_device_id tmscsim_pci_tbl[] = {
260 .vendor = PCI_VENDOR_ID_AMD,
261 .device = PCI_DEVICE_ID_AMD53C974,
262 .subvendor = PCI_ANY_ID,
263 .subdevice = PCI_ANY_ID,
265 { } /* Terminating entry */
267 MODULE_DEVICE_TABLE(pci, tmscsim_pci_tbl);
271 static u8 dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB );
272 static void dc390_DataOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
273 static void dc390_DataIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
274 static void dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
275 static void dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
276 static void dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
277 static void dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
278 static void dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
279 static void dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
280 static void dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
281 static void dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
282 static void dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
283 static void dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
284 static void dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
285 static void dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
287 static void dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB );
288 static void dc390_Disconnect( struct dc390_acb* pACB );
289 static void dc390_Reselect( struct dc390_acb* pACB );
290 static void dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB );
291 static void dc390_DoingSRB_Done( struct dc390_acb* pACB, struct scsi_cmnd * cmd);
292 static void dc390_ScsiRstDetect( struct dc390_acb* pACB );
293 static void dc390_ResetSCSIBus( struct dc390_acb* pACB );
294 static void __inline__ dc390_RequestSense( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB );
295 static void __inline__ dc390_InvalidCmd( struct dc390_acb* pACB );
296 static void __inline__ dc390_EnableMsgOut_Abort (struct dc390_acb*, struct dc390_srb*);
297 static irqreturn_t do_DC390_Interrupt( int, void *, struct pt_regs *);
299 static int dc390_initAdapter(struct Scsi_Host *psh, unsigned long io_port, u8 Irq, u8 index );
300 static void dc390_updateDCB (struct dc390_acb* pACB, struct dc390_dcb* pDCB);
302 static int DC390_proc_info (struct Scsi_Host *shpnt, char *buffer, char **start,
303 off_t offset, int length, int inout);
305 static struct dc390_acb* dc390_pACB_start= NULL;
306 static struct dc390_acb* dc390_pACB_current = NULL;
307 static unsigned long dc390_lastabortedpid = 0;
308 static u32 dc390_laststatus = 0;
309 static u8 dc390_adapterCnt = 0;
311 /* Startup values, to be overriden on the commandline */
312 static int tmscsim[] = {-2, -2, -2, -2, -2, -2};
313 static int tmscsim_paramnum = ARRAY_SIZE(tmscsim);
315 module_param_array(tmscsim, int, tmscsim_paramnum, 0);
316 MODULE_PARM_DESC(tmscsim, "Host SCSI ID, Speed (0=10MHz), Device Flags, Adapter Flags, Max Tags (log2(tags)-1), DelayReset (s)");
317 MODULE_AUTHOR("C.L. Huang / Kurt Garloff");
318 MODULE_DESCRIPTION("SCSI host adapter driver for Tekram DC390 and other AMD53C974A based PCI SCSI adapters");
319 MODULE_LICENSE("GPL");
320 MODULE_SUPPORTED_DEVICE("sd,sr,sg,st");
322 static void *dc390_phase0[]={
334 static void *dc390_phase1[]={
347 static char* dc390_p0_str[] = {
359 static char* dc390_p1_str[] = {
360 "dc390_DataOutPhase",
362 "dc390_CommandPhase",
372 /* Devices erroneously pretending to be able to do TagQ */
373 static u8 dc390_baddevname1[2][28] ={
374 "SEAGATE ST3390N 9546",
375 "HP C3323-300 4269"};
378 static char* dc390_adapname = "DC390";
379 static u8 dc390_eepromBuf[MAX_ADAPTER_NUM][EE_LEN];
380 static u8 dc390_clock_period1[] = {4, 5, 6, 7, 8, 10, 13, 20};
381 static u8 dc390_clock_speed[] = {100,80,67,57,50, 40, 31, 20};
383 /***********************************************************************
384 * Functions for access to DC390 EEPROM
385 * and some to emulate it
387 **********************************************************************/
390 static void __devinit dc390_EnDisableCE(u8 mode, struct pci_dev *pdev, u8 *regval)
395 if(mode == ENABLE_CE)
399 pci_write_config_byte(pdev, *regval, bval);
400 if(mode == DISABLE_CE)
401 pci_write_config_byte(pdev, *regval, bval);
406 /* Override EEprom values with explicitly set values */
407 static void __devinit dc390_EEprom_Override (u8 index)
409 u8 *ptr = (u8 *) dc390_eepromBuf[index];
412 /* Adapter Settings */
413 if (tmscsim[0] != -2)
414 ptr[EE_ADAPT_SCSI_ID] = (u8)tmscsim[0]; /* Adapter ID */
415 if (tmscsim[3] != -2)
416 ptr[EE_MODE2] = (u8)tmscsim[3];
417 if (tmscsim[5] != -2)
418 ptr[EE_DELAY] = tmscsim[5]; /* Reset delay */
419 if (tmscsim[4] != -2)
420 ptr[EE_TAG_CMD_NUM] = (u8)tmscsim[4]; /* Tagged Cmds */
422 /* Device Settings */
423 for (id = 0; id < MAX_SCSI_ID; id++)
425 if (tmscsim[2] != -2)
426 ptr[id<<2] = (u8)tmscsim[2]; /* EE_MODE1 */
427 if (tmscsim[1] != -2)
428 ptr[(id<<2) + 1] = (u8)tmscsim[1]; /* EE_Speed */
432 /* Handle "-1" case */
433 static void __devinit dc390_check_for_safe_settings (void)
435 if (tmscsim[0] == -1 || tmscsim[0] > 15) /* modules-2.0.0 passes -1 as string */
437 tmscsim[0] = 7; tmscsim[1] = 4;
438 tmscsim[2] = 0x09; tmscsim[3] = 0x0f;
439 tmscsim[4] = 2; tmscsim[5] = 10;
440 printk (KERN_INFO "DC390: Using safe settings.\n");
445 static int __initdata tmscsim_def[] = {7, 0 /* 10MHz */,
446 PARITY_CHK_ | SEND_START_ | EN_DISCONNECT_
447 | SYNC_NEGO_ | TAG_QUEUEING_,
448 MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION
450 # ifdef CONFIG_SCSI_MULTI_LUN
453 , 3 /* 16 Tags per LUN */, 1 /* s delay after Reset */ };
455 /* Copy defaults over set values where missing */
456 static void __devinit dc390_fill_with_defaults (void)
459 PARSEDEBUG(printk(KERN_INFO "DC390: setup %08x %08x %08x %08x %08x %08x\n", tmscsim[0],\
460 tmscsim[1], tmscsim[2], tmscsim[3], tmscsim[4], tmscsim[5]));
461 for (i = 0; i < 6; i++)
463 if (tmscsim[i] < 0 || tmscsim[i] > 255)
464 tmscsim[i] = tmscsim_def[i];
467 if (tmscsim[0] > 7) tmscsim[0] = 7;
468 if (tmscsim[1] > 7) tmscsim[1] = 4;
469 if (tmscsim[4] > 5) tmscsim[4] = 4;
470 if (tmscsim[5] > 180) tmscsim[5] = 180;
474 /* Override defaults on cmdline:
475 * tmscsim: AdaptID, MaxSpeed (Index), DevMode (Bitmapped), AdaptMode (Bitmapped)
477 static int __init dc390_setup (char *str)
481 (void)get_options (str, ARRAY_SIZE(ints), ints);
485 printk (KERN_NOTICE "DC390: ignore extra params!\n");
488 for (i = 0; i < im; i++)
489 tmscsim[i] = ints[i+1];
490 /* dc390_checkparams (); */
494 __setup("tmscsim=", dc390_setup);
497 static void __devinit dc390_EEpromOutDI(struct pci_dev *pdev, u8 *regval, u8 Carry)
506 pci_write_config_byte(pdev, *regval, bval);
510 pci_write_config_byte(pdev, *regval, bval);
513 pci_write_config_byte(pdev, *regval, bval);
518 static u8 __devinit dc390_EEpromInDO(struct pci_dev *pdev)
522 pci_write_config_byte(pdev, 0x80, 0x80);
524 pci_write_config_byte(pdev, 0x80, 0x40);
526 pci_read_config_byte(pdev, 0x00, &bval);
534 static u16 __devinit dc390_EEpromGetData1(struct pci_dev *pdev)
544 carryFlag = dc390_EEpromInDO(pdev);
551 static void __devinit dc390_Prepare(struct pci_dev *pdev, u8 *regval, u8 EEpromCmd)
560 dc390_EEpromOutDI(pdev, regval, carryFlag);
561 carryFlag = (EEpromCmd & j) ? 1 : 0;
567 static void __devinit dc390_ReadEEprom(struct pci_dev *pdev, u16 *ptr)
573 for(i=0; i<0x40; i++)
575 dc390_EnDisableCE(ENABLE_CE, pdev, ®val);
576 dc390_Prepare(pdev, ®val, cmd++);
577 *ptr++ = dc390_EEpromGetData1(pdev);
578 dc390_EnDisableCE(DISABLE_CE, pdev, ®val);
583 static void __devinit dc390_interpret_delay (u8 index)
585 char interpd [] = {1,3,5,10,16,30,60,120};
586 dc390_eepromBuf[index][EE_DELAY] = interpd [dc390_eepromBuf[index][EE_DELAY]];
589 static u8 __devinit dc390_CheckEEpromCheckSum(struct pci_dev *pdev, u8 index)
593 u16 wval, *ptr = (u16 *)EEbuf;
595 dc390_ReadEEprom(pdev, ptr);
596 memcpy (dc390_eepromBuf[index], EEbuf, EE_ADAPT_SCSI_ID);
597 memcpy (&dc390_eepromBuf[index][EE_ADAPT_SCSI_ID],
598 &EEbuf[REAL_EE_ADAPT_SCSI_ID], EE_LEN - EE_ADAPT_SCSI_ID);
599 dc390_interpret_delay (index);
602 for(i=0; i<0x40; i++, ptr++)
604 return (wval == 0x1234 ? 0 : 1);
608 /***********************************************************************
609 * Functions for the management of the internal structures
610 * (DCBs, SRBs, Queueing)
612 **********************************************************************/
613 static struct dc390_dcb __inline__ *dc390_findDCB ( struct dc390_acb* pACB, u8 id, u8 lun)
615 struct dc390_dcb* pDCB = pACB->pLinkDCB; if (!pDCB) return 0;
616 while (pDCB->TargetID != id || pDCB->TargetLUN != lun)
618 pDCB = pDCB->pNextDCB;
619 if (pDCB == pACB->pLinkDCB)
621 DCBDEBUG(printk (KERN_WARNING "DC390: DCB not found (DCB=%p, DCBmap[%2x]=%2x)\n",
622 pDCB, id, pACB->DCBmap[id]));
626 DCBDEBUG1( printk (KERN_DEBUG "DCB %p (%02x,%02x) found.\n", \
627 pDCB, pDCB->TargetID, pDCB->TargetLUN));
631 /* Queueing philosphy:
632 * There are a couple of lists:
633 * - Query: Contains the Scsi Commands not yet turned into SRBs (per ACB)
634 * (Note: For new EH, it is unnecessary!)
635 * - Waiting: Contains a list of SRBs not yet sent (per DCB)
636 * - Free: List of free SRB slots
638 * If there are no waiting commands for the DCB, the new one is sent to the bus
639 * otherwise the oldest one is taken from the Waiting list and the new one is
640 * queued to the Waiting List
642 * Lists are managed using two pointers and eventually a counter
645 /* Return next free SRB */
646 static __inline__ struct dc390_srb* dc390_Free_get ( struct dc390_acb* pACB )
648 struct dc390_srb* pSRB;
650 pSRB = pACB->pFreeSRB;
651 DEBUG0(printk ("DC390: Get Free SRB %p\n", pSRB));
654 pACB->pFreeSRB = pSRB->pNextSRB;
655 pSRB->pNextSRB = NULL;
661 /* Insert SRB oin top of free list */
662 static __inline__ void dc390_Free_insert (struct dc390_acb* pACB, struct dc390_srb* pSRB)
664 DEBUG0(printk ("DC390: Free SRB %p\n", pSRB));
665 pSRB->pNextSRB = pACB->pFreeSRB;
666 pACB->pFreeSRB = pSRB;
670 /* Inserts a SRB to the top of the Waiting list */
671 static __inline__ void dc390_Waiting_insert ( struct dc390_dcb* pDCB, struct dc390_srb* pSRB )
673 DEBUG0(printk ("DC390: Insert pSRB %p cmd %li to Waiting\n", pSRB, pSRB->pcmd->pid));
674 pSRB->pNextSRB = pDCB->pWaitingSRB;
675 if (!pDCB->pWaitingSRB)
676 pDCB->pWaitLast = pSRB;
677 pDCB->pWaitingSRB = pSRB;
682 /* Queue SRB to waiting list */
683 static __inline__ void dc390_Waiting_append ( struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
685 DEBUG0(printk ("DC390: Append pSRB %p cmd %li to Waiting\n", pSRB, pSRB->pcmd->pid));
686 if( pDCB->pWaitingSRB )
687 pDCB->pWaitLast->pNextSRB = pSRB;
689 pDCB->pWaitingSRB = pSRB;
691 pDCB->pWaitLast = pSRB;
692 pSRB->pNextSRB = NULL;
694 pDCB->pDCBACB->CmdInQ++;
697 static __inline__ void dc390_Going_append (struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
700 DEBUG0(printk("DC390: Append SRB %p to Going\n", pSRB));
701 /* Append to the list of Going commands */
702 if( pDCB->pGoingSRB )
703 pDCB->pGoingLast->pNextSRB = pSRB;
705 pDCB->pGoingSRB = pSRB;
707 pDCB->pGoingLast = pSRB;
708 /* No next one in sent list */
709 pSRB->pNextSRB = NULL;
712 static __inline__ void dc390_Going_remove (struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
714 DEBUG0(printk("DC390: Remove SRB %p from Going\n", pSRB));
715 if (pSRB == pDCB->pGoingSRB)
716 pDCB->pGoingSRB = pSRB->pNextSRB;
719 struct dc390_srb* psrb = pDCB->pGoingSRB;
720 while (psrb && psrb->pNextSRB != pSRB)
721 psrb = psrb->pNextSRB;
723 { printk (KERN_ERR "DC390: Remove non-ex. SRB %p from Going!\n", pSRB); return; }
724 psrb->pNextSRB = pSRB->pNextSRB;
725 if (pSRB == pDCB->pGoingLast)
726 pDCB->pGoingLast = psrb;
731 /* Moves SRB from Going list to the top of Waiting list */
732 static void dc390_Going_to_Waiting ( struct dc390_dcb* pDCB, struct dc390_srb* pSRB )
734 DEBUG0(printk(KERN_INFO "DC390: Going_to_Waiting (SRB %p) pid = %li\n", pSRB, pSRB->pcmd->pid));
735 /* Remove SRB from Going */
736 dc390_Going_remove (pDCB, pSRB);
737 /* Insert on top of Waiting */
738 dc390_Waiting_insert (pDCB, pSRB);
739 /* Tag Mask must be freed elsewhere ! (KG, 99/06/18) */
742 /* Moves first SRB from Waiting list to Going list */
743 static __inline__ void dc390_Waiting_to_Going ( struct dc390_dcb* pDCB, struct dc390_srb* pSRB )
745 /* Remove from waiting list */
746 DEBUG0(printk("DC390: Remove SRB %p from head of Waiting\n", pSRB));
747 pDCB->pWaitingSRB = pSRB->pNextSRB;
748 if( !pDCB->pWaitingSRB ) pDCB->pWaitLast = NULL;
750 dc390_Going_append (pDCB, pSRB);
753 static void DC390_waiting_timed_out (unsigned long ptr);
754 /* Sets the timer to wake us up */
755 static void dc390_waiting_timer (struct dc390_acb* pACB, unsigned long to)
757 if (timer_pending (&pACB->Waiting_Timer)) return;
758 init_timer (&pACB->Waiting_Timer);
759 pACB->Waiting_Timer.function = DC390_waiting_timed_out;
760 pACB->Waiting_Timer.data = (unsigned long)pACB;
761 if (time_before (jiffies + to, pACB->pScsiHost->last_reset))
762 pACB->Waiting_Timer.expires = pACB->pScsiHost->last_reset + 1;
764 pACB->Waiting_Timer.expires = jiffies + to + 1;
765 add_timer (&pACB->Waiting_Timer);
769 /* Send the next command from the waiting list to the bus */
770 static void dc390_Waiting_process ( struct dc390_acb* pACB )
772 struct dc390_dcb *ptr, *ptr1;
773 struct dc390_srb *pSRB;
775 if( (pACB->pActiveDCB) || (pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV) ) )
777 if (timer_pending (&pACB->Waiting_Timer)) del_timer (&pACB->Waiting_Timer);
778 ptr = pACB->pDCBRunRobin;
781 ptr = pACB->pLinkDCB;
782 pACB->pDCBRunRobin = ptr;
788 pACB->pDCBRunRobin = ptr1->pNextDCB;
789 if( !( pSRB = ptr1->pWaitingSRB ) ||
790 ( ptr1->MaxCommand <= ptr1->GoingSRBCnt ))
791 ptr1 = ptr1->pNextDCB;
794 /* Try to send to the bus */
795 if( !dc390_StartSCSI(pACB, ptr1, pSRB) )
796 dc390_Waiting_to_Going (ptr1, pSRB);
798 dc390_waiting_timer (pACB, HZ/5);
801 } while (ptr1 != ptr);
805 /* Wake up waiting queue */
806 static void DC390_waiting_timed_out (unsigned long ptr)
808 struct dc390_acb* pACB = (struct dc390_acb*)ptr;
809 unsigned long iflags;
810 DEBUG0(printk ("DC390: Debug: Waiting queue woken up by timer!\n"));
811 spin_lock_irqsave(pACB->pScsiHost->host_lock, iflags);
812 dc390_Waiting_process (pACB);
813 spin_unlock_irqrestore(pACB->pScsiHost->host_lock, iflags);
816 /***********************************************************************
817 * Function: static void dc390_SendSRB (struct dc390_acb* pACB, struct dc390_srb* pSRB)
819 * Purpose: Send SCSI Request Block (pSRB) to adapter (pACB)
821 ***********************************************************************/
823 static void dc390_SendSRB( struct dc390_acb* pACB, struct dc390_srb* pSRB )
825 struct dc390_dcb* pDCB;
827 pDCB = pSRB->pSRBDCB;
828 if( (pDCB->MaxCommand <= pDCB->GoingSRBCnt) || (pACB->pActiveDCB) ||
829 (pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV)) )
831 dc390_Waiting_append (pDCB, pSRB);
832 dc390_Waiting_process (pACB);
837 if( pDCB->pWaitingSRB )
839 dc390_Waiting_append (pDCB, pSRB);
840 /* pSRB = GetWaitingSRB(pDCB); */ /* non-existent */
841 pSRB = pDCB->pWaitingSRB;
842 /* Remove from waiting list */
843 pDCB->pWaitingSRB = pSRB->pNextSRB;
844 pSRB->pNextSRB = NULL;
845 if (!pDCB->pWaitingSRB) pDCB->pWaitLast = NULL;
849 if (!dc390_StartSCSI(pACB, pDCB, pSRB))
850 dc390_Going_append (pDCB, pSRB);
852 dc390_Waiting_insert (pDCB, pSRB);
853 dc390_waiting_timer (pACB, HZ/5);
857 static struct scatterlist* dc390_sg_build_single(struct scatterlist *sg, void *addr, unsigned int length)
859 memset(sg, 0, sizeof(struct scatterlist));
860 sg->page = virt_to_page(addr);
862 sg->offset = (unsigned long)addr & ~PAGE_MASK;
866 /* Create pci mapping */
867 static int dc390_pci_map (struct dc390_srb* pSRB)
870 struct scsi_cmnd *pcmd = pSRB->pcmd;
871 struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev;
872 dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp));
874 /* Map sense buffer */
875 if (pSRB->SRBFlag & AUTO_REQSENSE) {
876 pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->sense_buffer, sizeof(pcmd->sense_buffer));
877 pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1,
879 cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList);
881 /* TODO: error handling */
882 if (pSRB->SGcount != 1)
884 DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __FUNCTION__, pcmd->sense_buffer, cmdp->saved_dma_handle));
886 } else if (pcmd->use_sg) {
887 pSRB->pSegmentList = (struct scatterlist *) pcmd->request_buffer;
888 pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, pcmd->use_sg,
889 pcmd->sc_data_direction);
890 /* TODO: error handling */
893 DEBUG1(printk("%s(): Mapped SG %p with %d (%d) elements\n",\
894 __FUNCTION__, pcmd->request_buffer, pSRB->SGcount, pcmd->use_sg));
895 /* Map single segment */
896 } else if (pcmd->request_buffer && pcmd->request_bufflen) {
897 pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->request_buffer, pcmd->request_bufflen);
898 pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1,
899 pcmd->sc_data_direction);
900 cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList);
902 /* TODO: error handling */
903 if (pSRB->SGcount != 1)
905 DEBUG1(printk("%s(): Mapped request buffer %p at %x\n", __FUNCTION__, pcmd->request_buffer, cmdp->saved_dma_handle));
913 /* Remove pci mapping */
914 static void dc390_pci_unmap (struct dc390_srb* pSRB)
916 struct scsi_cmnd *pcmd = pSRB->pcmd;
917 struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev;
918 DEBUG1(dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp)));
921 pci_unmap_sg(pdev, &pSRB->Segmentx, 1, DMA_FROM_DEVICE);
922 DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle));
923 } else if (pcmd->use_sg) {
924 pci_unmap_sg(pdev, pcmd->request_buffer, pcmd->use_sg, pcmd->sc_data_direction);
925 DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n", __FUNCTION__, pcmd->request_buffer, pcmd->use_sg));
926 } else if (pcmd->request_buffer && pcmd->request_bufflen) {
927 pci_unmap_sg(pdev, &pSRB->Segmentx, 1, pcmd->sc_data_direction);
928 DEBUG1(printk("%s(): Unmapped request buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle));
933 /***********************************************************************
934 * Function: static void dc390_BuildSRB (Scsi_Cmd *pcmd, struct dc390_dcb* pDCB,
935 * struct dc390_srb* pSRB)
937 * Purpose: Prepare SRB for being sent to Device DCB w/ command *pcmd
939 ***********************************************************************/
941 static void dc390_BuildSRB (struct scsi_cmnd *pcmd, struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
943 pSRB->pSRBDCB = pDCB;
945 //pSRB->ScsiCmdLen = pcmd->cmd_len;
946 //memcpy (pSRB->CmdBlock, pcmd->cmnd, pcmd->cmd_len);
949 pSRB->AdaptStatus = 0;
950 pSRB->TargetStatus = 0;
952 if( pDCB->DevType != TYPE_TAPE )
959 pSRB->TotalXferredLen = 0;
961 pSRB->SGToBeXferLen = 0;
963 pSRB->EndMessage = 0;
964 pSRB->TagNumber = 255;
965 /* KG: deferred PCI mapping to dc390_StartSCSI */
968 /***********************************************************************
969 * Function : static int DC390_queue_command (struct scsi_cmnd *cmd,
970 * void (*done)(struct scsi_cmnd *))
972 * Purpose : enqueues a SCSI command
974 * Inputs : cmd - SCSI command, done - callback function called on
975 * completion, with a pointer to the command descriptor.
977 * Returns : (depending on kernel version)
978 * 2.0.x: always return 0
979 * 2.1.x: old model: (use_new_eh_code == 0): like 2.0.x
981 * new model: return 0 if successful, or must not be re-queued
982 * return 1 if command cannot be queued (queue full)
983 * command will be inserted in midlevel queue then ...
985 ***********************************************************************/
987 static int DC390_queue_command(struct scsi_cmnd *cmd,
988 void (* done)(struct scsi_cmnd *))
990 struct dc390_dcb* pDCB = (struct dc390_dcb*) cmd->device->hostdata;
991 struct dc390_srb* pSRB;
992 struct dc390_acb* pACB = (struct dc390_acb*) cmd->device->host->hostdata;
994 DEBUG0(/* if(pACB->scan_devices) */ \
995 printk(KERN_INFO "DC390: Queue Cmd=%02x,Tgt=%d,LUN=%d (pid=%li), buffer=%p\n",\
996 cmd->cmnd[0],cmd->device->id,cmd->device->lun,cmd->pid, cmd->buffer));
998 /* TODO: Change the policy: Always accept TEST_UNIT_READY or INQUIRY
999 * commands and alloc a DCB for the device if not yet there. DCB will
1000 * be removed in dc390_SRBdone if SEL_TIMEOUT */
1001 if (!(pACB->scan_devices) && !(pACB->DCBmap[cmd->device->id] & (1 << cmd->device->lun))) {
1002 printk(KERN_INFO "DC390: Ignore target %02x lun %02x\n",
1003 cmd->device->id, cmd->device->lun);
1007 /* Should it be: BUG_ON(!pDCB); ? */
1010 { /* should never happen */
1011 printk (KERN_ERR "DC390: no DCB found, target %02x lun %02x\n",
1012 cmd->device->id, cmd->device->lun);
1017 cmd->scsi_done = done;
1020 pSRB = dc390_Free_get(pACB);
1024 dc390_BuildSRB(cmd, pDCB, pSRB);
1025 if (pDCB->pWaitingSRB) {
1026 dc390_Waiting_append(pDCB, pSRB);
1027 dc390_Waiting_process(pACB);
1029 dc390_SendSRB(pACB, pSRB);
1031 DEBUG1(printk (KERN_DEBUG " ... command (pid %li) queued successfully.\n", cmd->pid));
1037 cmd->result = DID_BAD_TARGET << 16;
1042 /* We ignore mapping problems, as we expect everybody to respect
1043 * valid partition tables. Waiting for complaints ;-) */
1045 #ifdef CONFIG_SCSI_DC390T_TRADMAP
1047 * The next function, partsize(), is copied from scsicam.c.
1049 * This is ugly code duplication, but I didn't find another way to solve it:
1050 * We want to respect the partition table and if it fails, we apply the
1051 * DC390 BIOS heuristic. Too bad, just calling scsicam_bios_param() doesn't do
1052 * the job, because we don't know, whether the values returned are from
1053 * the part. table or determined by setsize(). Unfortunately the setsize()
1054 * values differ from the ones chosen by the DC390 BIOS.
1056 * Looking forward to seeing suggestions for a better solution! KG, 98/10/14
1058 #include <asm/unaligned.h>
1061 * Function : static int partsize(unsigned char *buf, unsigned long
1062 * capacity,unsigned int *cyls, unsigned int *hds, unsigned int *secs);
1064 * Purpose : to determine the BIOS mapping used to create the partition
1065 * table, storing the results in *cyls, *hds, and *secs
1067 * Returns : -1 on failure, 0 on success.
1071 static int partsize(unsigned char *buf, unsigned long capacity,
1072 unsigned int *cyls, unsigned int *hds, unsigned int *secs) {
1073 struct partition *p, *largest = NULL;
1075 int cyl, ext_cyl, end_head, end_cyl, end_sector;
1076 unsigned int logical_end, physical_end, ext_physical_end;
1079 if (*(unsigned short *) (buf+64) == 0xAA55) {
1080 for (largest_cyl = -1, p = (struct partition *) buf,
1081 i = 0; i < 4; ++i, ++p) {
1084 cyl = p->cyl + ((p->sector & 0xc0) << 2);
1085 if (cyl > largest_cyl) {
1093 end_cyl = largest->end_cyl + ((largest->end_sector & 0xc0) << 2);
1094 end_head = largest->end_head;
1095 end_sector = largest->end_sector & 0x3f;
1097 physical_end = end_cyl * (end_head + 1) * end_sector +
1098 end_head * end_sector + end_sector;
1100 /* This is the actual _sector_ number at the end */
1101 logical_end = get_unaligned(&largest->start_sect)
1102 + get_unaligned(&largest->nr_sects);
1104 /* This is for >1023 cylinders */
1105 ext_cyl= (logical_end-(end_head * end_sector + end_sector))
1106 /(end_head + 1) / end_sector;
1107 ext_physical_end = ext_cyl * (end_head + 1) * end_sector +
1108 end_head * end_sector + end_sector;
1110 if ((logical_end == physical_end) ||
1111 (end_cyl==1023 && ext_physical_end==logical_end)) {
1113 *hds = end_head + 1;
1114 *cyls = capacity / ((end_head + 1) * end_sector);
1121 /***********************************************************************
1126 * Return the disk geometry for the given SCSI device.
1127 * Respect the partition table, otherwise try own heuristic
1130 * In contrary to other externally callable funcs (DC390_), we don't lock
1131 ***********************************************************************/
1132 static int DC390_bios_param (struct scsi_device *sdev, struct block_device *bdev,
1133 sector_t capacity, int geom[])
1135 int heads, sectors, cylinders;
1136 struct dc390_acb* pACB = (struct dc390_acb*) sdev->host->hostdata;
1138 int size = capacity;
1141 if ((buf = scsi_bios_ptable(bdev)))
1143 /* try to infer mapping from partition table */
1144 ret_code = partsize (buf, (unsigned long) size, (unsigned int *) geom + 2,
1145 (unsigned int *) geom + 0, (unsigned int *) geom + 1);
1152 cylinders = size / (heads * sectors);
1154 if ( (pACB->Gmode2 & GREATER_1G) && (cylinders > 1024) )
1158 cylinders = size / (heads * sectors);
1163 geom[2] = cylinders;
1169 static int DC390_bios_param (struct scsi_device *sdev, struct block_device *bdev,
1170 sector_t capacity, int geom[])
1172 return scsicam_bios_param (bdev, capacity, geom);
1176 static void dc390_dumpinfo (struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
1178 struct pci_dev *pdev;
1181 if (!pDCB) pDCB = pACB->pActiveDCB;
1182 if (!pSRB && pDCB) pSRB = pDCB->pActiveSRB;
1186 printk ("DC390: SRB: Xferred %08lx, Remain %08lx, State %08x, Phase %02x\n",
1187 pSRB->TotalXferredLen, pSRB->SGToBeXferLen, pSRB->SRBState,
1189 printk ("DC390: AdpaterStatus: %02x, SRB Status %02x\n", pSRB->AdaptStatus, pSRB->SRBStatus);
1191 printk ("DC390: Status of last IRQ (DMA/SC/Int/IRQ): %08x\n", dc390_laststatus);
1192 printk ("DC390: Register dump: SCSI block:\n");
1193 printk ("DC390: XferCnt Cmd Stat IntS IRQS FFIS Ctl1 Ctl2 Ctl3 Ctl4\n");
1194 printk ("DC390: %06x %02x %02x %02x",
1195 DC390_read8(CtcReg_Low) + (DC390_read8(CtcReg_Mid) << 8) + (DC390_read8(CtcReg_High) << 16),
1196 DC390_read8(ScsiCmd), DC390_read8(Scsi_Status), DC390_read8(Intern_State));
1197 printk (" %02x %02x %02x %02x %02x %02x\n",
1198 DC390_read8(INT_Status), DC390_read8(Current_Fifo), DC390_read8(CtrlReg1),
1199 DC390_read8(CtrlReg2), DC390_read8(CtrlReg3), DC390_read8(CtrlReg4));
1200 DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT);
1201 if (DC390_read8(Current_Fifo) & 0x1f)
1203 printk ("DC390: FIFO:");
1204 while (DC390_read8(Current_Fifo) & 0x1f) printk (" %02x", DC390_read8(ScsiFifo));
1207 printk ("DC390: Register dump: DMA engine:\n");
1208 printk ("DC390: Cmd STrCnt SBusA WrkBC WrkAC Stat SBusCtrl\n");
1209 printk ("DC390: %02x %08x %08x %08x %08x %02x %08x\n",
1210 DC390_read8(DMA_Cmd), DC390_read32(DMA_XferCnt), DC390_read32(DMA_XferAddr),
1211 DC390_read32(DMA_Wk_ByteCntr), DC390_read32(DMA_Wk_AddrCntr),
1212 DC390_read8(DMA_Status), DC390_read32(DMA_ScsiBusCtrl));
1213 DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT);
1216 pci_read_config_word(pdev, PCI_STATUS, &pstat);
1217 printk ("DC390: Register dump: PCI Status: %04x\n", pstat);
1218 printk ("DC390: In case of driver trouble read linux/Documentation/scsi/tmscsim.txt\n");
1222 /***********************************************************************
1223 * Function : int DC390_abort (struct scsi_cmnd *cmd)
1225 * Purpose : Abort an errant SCSI command
1227 * Inputs : cmd - command to abort
1229 * Returns : 0 on success, -1 on failure.
1232 ***********************************************************************/
1234 static int DC390_abort (struct scsi_cmnd *cmd)
1236 struct dc390_dcb *pDCB = (struct dc390_dcb*) cmd->device->hostdata;
1237 struct dc390_srb *pSRB, *psrb;
1240 //unsigned long sbac;
1241 struct dc390_acb *pACB = (struct dc390_acb*) cmd->device->host->hostdata;
1243 printk ("DC390: Abort command (pid %li, Device %02i-%02i)\n",
1244 cmd->pid, cmd->device->id, cmd->device->lun);
1246 if( !pDCB ) goto NOT_RUN;
1248 /* Added 98/07/02 KG */
1250 pSRB = pDCB->pActiveSRB;
1251 if (pSRB && pSRB->pcmd == cmd )
1255 pSRB = pDCB->pWaitingSRB;
1259 /* Now scan Waiting queue */
1260 if( pSRB->pcmd == cmd )
1262 pDCB->pWaitingSRB = pSRB->pNextSRB;
1268 if( !(psrb->pNextSRB) )
1270 while( psrb->pNextSRB->pcmd != cmd )
1272 psrb = psrb->pNextSRB;
1273 if( !(psrb->pNextSRB) || psrb == pSRB)
1276 pSRB = psrb->pNextSRB;
1277 psrb->pNextSRB = pSRB->pNextSRB;
1278 if( pSRB == pDCB->pWaitLast )
1279 pDCB->pWaitLast = psrb;
1281 dc390_Free_insert (pACB, pSRB);
1283 INIT_LIST_HEAD((struct list_head*)&cmd->SCp);
1284 status = SCSI_ABORT_SUCCESS;
1288 /* SRB has already been sent ! */
1290 /* abort() is too stupid for already sent commands at the moment.
1291 * If it's called we are in trouble anyway, so let's dump some info
1292 * into the syslog at least. (KG, 98/08/20,99/06/20) */
1293 dc390_dumpinfo (pACB, pDCB, pSRB);
1294 pSRB = pDCB->pGoingSRB;
1295 pDCB->DCBFlag |= ABORT_DEV_;
1296 /* Now for the hard part: The command is currently processed */
1297 for( count = pDCB->GoingSRBCnt, i=0; i<count; i++)
1299 if( pSRB->pcmd != cmd )
1300 pSRB = pSRB->pNextSRB;
1303 if( (pACB->pActiveDCB == pDCB) && (pDCB->pActiveSRB == pSRB) )
1305 status = SCSI_ABORT_BUSY;
1306 printk ("DC390: Abort current command (pid %li, SRB %p)\n",
1312 status = SCSI_ABORT_SNOOZE;
1319 status = SCSI_ABORT_NOT_RUNNING;
1322 cmd->result = DID_ABORT << 16;
1323 printk(KERN_INFO "DC390: Aborted pid %li with status %i\n", cmd->pid, status);
1325 if (cmd->pid == dc390_lastabortedpid) /* repeated failure ? */
1327 /* Let's do something to help the bus getting clean again */
1328 DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
1329 DC390_write8 (ScsiCmd, DMA_COMMAND);
1330 //DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
1331 //DC390_write8 (ScsiCmd, RESET_ATN_CMD);
1332 DC390_write8 (ScsiCmd, NOP_CMD);
1334 //DC390_read8 (INT_Status);
1335 //DC390_write8 (ScsiCmd, EN_SEL_RESEL);
1337 sbac = DC390_read32 (DMA_ScsiBusCtrl);
1338 if (sbac & SCSI_BUSY)
1339 { /* clear BSY, SEL and ATN */
1340 printk (KERN_WARNING "DC390: Reset SCSI device: ");
1341 //DC390_write32 (DMA_ScsiBusCtrl, (sbac | SCAM) & ~SCSI_LINES);
1343 //sbac = DC390_read32 (DMA_ScsiBusCtrl);
1344 //printk ("%08lx ", sbac);
1345 //DC390_write32 (DMA_ScsiBusCtrl, sbac & ~(SCSI_LINES | SCAM));
1347 //sbac = DC390_read32 (DMA_ScsiBusCtrl);
1348 //printk ("%08lx ", sbac);
1349 DC390_write8 (ScsiCmd, RST_DEVICE_CMD);
1351 DC390_write8 (ScsiCmd, NOP_CMD);
1352 sbac = DC390_read32 (DMA_ScsiBusCtrl);
1353 printk ("%08lx\n", sbac);
1356 dc390_lastabortedpid = cmd->pid;
1357 //do_DC390_Interrupt (pACB->IRQLevel, 0, 0);
1359 if (status == SCSI_ABORT_SUCCESS) cmd->scsi_done(cmd);
1365 static void dc390_ResetDevParam( struct dc390_acb* pACB )
1367 struct dc390_dcb *pDCB, *pdcb;
1369 pDCB = pACB->pLinkDCB;
1374 pDCB->SyncMode &= ~SYNC_NEGO_DONE;
1375 pDCB->SyncPeriod = 0;
1376 pDCB->SyncOffset = 0;
1378 pDCB->CtrlR3 = FAST_CLK;
1379 pDCB->CtrlR4 &= NEGATE_REQACKDATA | CTRL4_RESERVED | NEGATE_REQACK;
1380 pDCB->CtrlR4 |= pACB->glitch_cfg;
1381 pDCB = pDCB->pNextDCB;
1383 while( pdcb != pDCB );
1384 pACB->ACBFlag &= ~(RESET_DEV | RESET_DONE | RESET_DETECT);
1389 /* Moves all SRBs from Going to Waiting for all DCBs */
1390 static void dc390_RecoverSRB( struct dc390_acb* pACB )
1392 struct dc390_dcb *pDCB, *pdcb;
1393 struct dc390_srb *psrb, *psrb2;
1396 pDCB = pACB->pLinkDCB;
1401 cnt = pdcb->GoingSRBCnt;
1402 psrb = pdcb->pGoingSRB;
1403 for (i=0; i<cnt; i++)
1406 psrb = psrb->pNextSRB;
1407 /* dc390_RewaitSRB( pDCB, psrb ); */
1408 if( pdcb->pWaitingSRB )
1410 psrb2->pNextSRB = pdcb->pWaitingSRB;
1411 pdcb->pWaitingSRB = psrb2;
1415 pdcb->pWaitingSRB = psrb2;
1416 pdcb->pWaitLast = psrb2;
1417 psrb2->pNextSRB = NULL;
1420 pdcb->GoingSRBCnt = 0;
1421 pdcb->pGoingSRB = NULL;
1423 pdcb = pdcb->pNextDCB;
1424 } while( pdcb != pDCB );
1428 /***********************************************************************
1429 * Function : int DC390_reset (struct scsi_cmnd *cmd, ...)
1431 * Purpose : perform a hard reset on the SCSI bus
1433 * Inputs : cmd - command which caused the SCSI RESET
1434 * resetFlags - how hard to try
1436 * Returns : 0 on success.
1437 ***********************************************************************/
1439 static int DC390_reset (struct scsi_cmnd *cmd)
1442 struct dc390_acb* pACB = (struct dc390_acb*) cmd->device->host->hostdata;
1444 printk(KERN_INFO "DC390: RESET ... ");
1446 if (timer_pending (&pACB->Waiting_Timer)) del_timer (&pACB->Waiting_Timer);
1447 bval = DC390_read8 (CtrlReg1);
1448 bval |= DIS_INT_ON_SCSI_RST;
1449 DC390_write8 (CtrlReg1, bval); /* disable IRQ on bus reset */
1451 pACB->ACBFlag |= RESET_DEV;
1452 dc390_ResetSCSIBus( pACB );
1454 dc390_ResetDevParam( pACB );
1456 pACB->pScsiHost->last_reset = jiffies + 3*HZ/2
1457 + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
1459 DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
1460 DC390_read8 (INT_Status); /* Reset Pending INT */
1462 dc390_DoingSRB_Done( pACB, cmd );
1463 /* dc390_RecoverSRB (pACB); */
1464 pACB->pActiveDCB = NULL;
1467 bval = DC390_read8 (CtrlReg1);
1468 bval &= ~DIS_INT_ON_SCSI_RST;
1469 DC390_write8 (CtrlReg1, bval); /* re-enable interrupt */
1471 dc390_Waiting_process( pACB );
1474 return( SCSI_RESET_SUCCESS );
1477 #include "scsiiom.c"
1479 /***********************************************************************
1480 * Function : static void dc390_updateDCB()
1482 * Purpose : Set the configuration dependent DCB parameters
1483 ***********************************************************************/
1485 static void dc390_updateDCB (struct dc390_acb* pACB, struct dc390_dcb* pDCB)
1487 pDCB->SyncMode &= EN_TAG_QUEUEING | SYNC_NEGO_DONE /*| EN_ATN_STOP*/;
1488 if (pDCB->DevMode & TAG_QUEUEING_) {
1489 //if (pDCB->SyncMode & EN_TAG_QUEUEING) pDCB->MaxCommand = pACB->TagMaxNum;
1491 pDCB->SyncMode &= ~EN_TAG_QUEUEING;
1492 pDCB->MaxCommand = 1;
1495 if( pDCB->DevMode & SYNC_NEGO_ )
1496 pDCB->SyncMode |= SYNC_ENABLE;
1498 pDCB->SyncMode &= ~(SYNC_NEGO_DONE | SYNC_ENABLE);
1499 pDCB->SyncOffset &= ~0x0f;
1502 //if (! (pDCB->DevMode & EN_DISCONNECT_)) pDCB->SyncMode &= ~EN_ATN_STOP;
1504 pDCB->CtrlR1 = pACB->pScsiHost->this_id;
1505 if( pDCB->DevMode & PARITY_CHK_ )
1506 pDCB->CtrlR1 |= PARITY_ERR_REPO;
1509 /***********************************************************************
1510 * Function : static void dc390_initSRB()
1512 * Purpose : initialize the internal structures for a given SRB
1514 * Inputs : psrb - pointer to this scsi request block structure
1515 ***********************************************************************/
1517 static void __inline__ dc390_initSRB( struct dc390_srb* psrb )
1519 /* psrb->PhysSRB = virt_to_phys( psrb ); */
1523 static void dc390_linkSRB( struct dc390_acb* pACB )
1527 count = pACB->SRBCount;
1528 for( i=0; i<count; i++)
1531 pACB->SRB_array[i].pNextSRB = &pACB->SRB_array[i+1];
1533 pACB->SRB_array[i].pNextSRB = NULL;
1534 dc390_initSRB( &pACB->SRB_array[i] );
1539 /***********************************************************************
1540 * Function : static void dc390_initACB ()
1542 * Purpose : initialize the internal structures for a given SCSI host
1544 * Inputs : psh - pointer to this host adapter's structure
1545 * io_port, Irq, index: Resources and adapter index
1546 ***********************************************************************/
1548 static void __devinit dc390_initACB (struct Scsi_Host *psh, unsigned long io_port, u8 Irq, u8 index)
1550 struct dc390_acb* pACB;
1553 psh->can_queue = MAX_CMD_QUEUE;
1554 psh->cmd_per_lun = MAX_CMD_PER_LUN;
1555 psh->this_id = (int) dc390_eepromBuf[index][EE_ADAPT_SCSI_ID];
1556 psh->io_port = io_port;
1557 psh->n_io_port = 0x80;
1559 psh->base = io_port;
1560 psh->unique_id = io_port;
1561 psh->dma_channel = -1;
1562 psh->last_reset = jiffies;
1564 pACB = (struct dc390_acb*) psh->hostdata;
1566 pACB->pScsiHost = psh;
1567 pACB->IOPortBase = (u16) io_port;
1568 pACB->IRQLevel = Irq;
1570 DEBUG0(printk (KERN_INFO "DC390: Adapter index %i, ID %i, IO 0x%08x, IRQ 0x%02x\n", \
1571 index, psh->this_id, (int)io_port, Irq));
1575 if( psh->max_id - 1 == dc390_eepromBuf[index][EE_ADAPT_SCSI_ID] )
1578 if( dc390_eepromBuf[index][EE_MODE2] & LUN_CHECK )
1581 pACB->pLinkDCB = NULL;
1582 pACB->pDCBRunRobin = NULL;
1583 pACB->pActiveDCB = NULL;
1584 pACB->pFreeSRB = pACB->SRB_array;
1585 pACB->SRBCount = MAX_SRB_CNT;
1586 pACB->AdapterIndex = index;
1589 pACB->TagMaxNum = 2 << dc390_eepromBuf[index][EE_TAG_CMD_NUM];
1591 pACB->scan_devices = 1;
1593 pACB->Ignore_IRQ = 0;
1594 pACB->Gmode2 = dc390_eepromBuf[index][EE_MODE2];
1595 dc390_linkSRB( pACB );
1596 pACB->pTmpSRB = &pACB->TmpSRB;
1597 dc390_initSRB( pACB->pTmpSRB );
1598 for(i=0; i<MAX_SCSI_ID; i++)
1599 pACB->DCBmap[i] = 0;
1600 pACB->sel_timeout = SEL_TIMEOUT;
1601 pACB->glitch_cfg = EATER_25NS;
1602 pACB->Cmds = pACB->CmdInQ = pACB->CmdOutOfSRB = 0;
1603 pACB->SelLost = pACB->SelConn = 0;
1604 init_timer (&pACB->Waiting_Timer);
1608 /***********************************************************************
1609 * Function : static int dc390_initAdapter ()
1611 * Purpose : initialize the SCSI chip ctrl registers
1613 * Inputs : psh - pointer to this host adapter's structure
1614 * io_port, Irq, index: Resources
1616 * Outputs: 0 on success, -1 on error
1617 ***********************************************************************/
1619 static int __devinit dc390_initAdapter (struct Scsi_Host *psh, unsigned long io_port, u8 Irq, u8 index)
1621 struct dc390_acb *pACB, *pACB2;
1625 pACB = (struct dc390_acb*) psh->hostdata;
1627 if (request_region (io_port, psh->n_io_port, "tmscsim") == NULL) {
1628 printk(KERN_ERR "DC390: register IO ports error!\n");
1632 DC390_read8_ (INT_Status, io_port); /* Reset Pending INT */
1634 if( (i = request_irq(Irq, do_DC390_Interrupt, DC390_IRQ, "tmscsim", pACB) ))
1636 printk(KERN_ERR "DC390: register IRQ error!\n");
1637 release_region (io_port, psh->n_io_port);
1641 if( !dc390_pACB_start )
1644 dc390_pACB_start = pACB;
1645 dc390_pACB_current = pACB;
1646 pACB->pNextACB = NULL;
1650 pACB2 = dc390_pACB_current;
1651 dc390_pACB_current->pNextACB = pACB;
1652 dc390_pACB_current = pACB;
1653 pACB->pNextACB = NULL;
1656 DC390_write8 (CtrlReg1, DIS_INT_ON_SCSI_RST | psh->this_id); /* Disable SCSI bus reset interrupt */
1658 if (pACB->Gmode2 & RST_SCSI_BUS)
1660 dc390_ResetSCSIBus( pACB );
1662 pACB->pScsiHost->last_reset = jiffies + HZ/2
1663 + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
1665 for( i=0; i<(500 + 1000*dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]); i++ )
1670 DC390_read8 (INT_Status); /* Reset Pending INT */
1672 DC390_write8 (Scsi_TimeOut, SEL_TIMEOUT); /* 250ms selection timeout */
1673 DC390_write8 (Clk_Factor, CLK_FREQ_40MHZ); /* Conversion factor = 0 , 40MHz clock */
1674 DC390_write8 (ScsiCmd, NOP_CMD); /* NOP cmd - clear command register */
1675 DC390_write8 (CtrlReg2, EN_FEATURE+EN_SCSI2_CMD); /* Enable Feature and SCSI-2 */
1676 DC390_write8 (CtrlReg3, FAST_CLK); /* fast clock */
1677 DC390_write8 (CtrlReg4, pACB->glitch_cfg | /* glitch eater */
1678 (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION) ? NEGATE_REQACKDATA : 0); /* Negation */
1679 DC390_write8 (CtcReg_High, 0); /* Clear Transfer Count High: ID */
1680 DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
1681 DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
1682 DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT);
1683 dstate = DC390_read8 (DMA_Status);
1684 DC390_write8 (DMA_Status, dstate); /* clear */
1690 static void __devinit dc390_set_pci_cfg (struct pci_dev *pdev)
1694 pci_read_config_word(pdev, PCI_COMMAND, &cmd);
1695 cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY | PCI_COMMAND_IO;
1696 pci_write_config_word(pdev, PCI_COMMAND, cmd);
1697 pci_write_config_word(pdev, PCI_STATUS, (PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY));
1701 * dc390_slave_alloc - Called by the scsi mid layer to tell us about a new
1702 * scsi device that we need to deal with.
1704 * @scsi_device: The new scsi device that we need to handle.
1706 static int dc390_slave_alloc(struct scsi_device *scsi_device)
1708 struct dc390_acb *pACB = (struct dc390_acb*) scsi_device->host->hostdata;
1709 struct dc390_dcb *pDCB, *pDCB2 = 0;
1710 uint id = scsi_device->id;
1711 uint lun = scsi_device->lun;
1713 pDCB = kmalloc(sizeof(struct dc390_dcb), GFP_KERNEL);
1716 memset(pDCB, 0, sizeof(struct dc390_dcb));
1718 if (!pACB->DCBCnt++) {
1719 pACB->pLinkDCB = pDCB;
1720 pACB->pDCBRunRobin = pDCB;
1722 pACB->pLastDCB->pNextDCB = pDCB;
1725 pDCB->pNextDCB = pACB->pLinkDCB;
1726 pACB->pLastDCB = pDCB;
1728 pDCB->pDCBACB = pACB;
1729 pDCB->TargetID = id;
1730 pDCB->TargetLUN = lun;
1731 pDCB->MaxCommand = 1;
1734 * Some values are for all LUNs: Copy them
1735 * In a clean way: We would have an own structure for a SCSI-ID
1737 if (lun && (pDCB2 = dc390_findDCB(pACB, id, 0))) {
1738 pDCB->DevMode = pDCB2->DevMode;
1739 pDCB->SyncMode = pDCB2->SyncMode;
1740 pDCB->SyncPeriod = pDCB2->SyncPeriod;
1741 pDCB->SyncOffset = pDCB2->SyncOffset;
1742 pDCB->NegoPeriod = pDCB2->NegoPeriod;
1744 pDCB->CtrlR3 = pDCB2->CtrlR3;
1745 pDCB->CtrlR4 = pDCB2->CtrlR4;
1746 pDCB->Inquiry7 = pDCB2->Inquiry7;
1748 u8 index = pACB->AdapterIndex;
1749 PEEprom prom = (PEEprom) &dc390_eepromBuf[index][id << 2];
1751 pDCB->DevMode = prom->EE_MODE1;
1753 (dc390_clock_period1[prom->EE_SPEED] * 25) >> 2;
1754 pDCB->CtrlR3 = FAST_CLK;
1755 pDCB->CtrlR4 = pACB->glitch_cfg | CTRL4_RESERVED;
1756 if (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION)
1757 pDCB->CtrlR4 |= NEGATE_REQACKDATA | NEGATE_REQACK;
1760 pACB->DCBmap[id] |= (1 << lun);
1761 dc390_updateDCB(pACB, pDCB);
1763 pACB->scan_devices = 1;
1764 scsi_device->hostdata = pDCB;
1769 * dc390_slave_destroy - Called by the scsi mid layer to tell us about a
1770 * device that is going away.
1772 * @scsi_device: The scsi device that we need to remove.
1774 static void dc390_slave_destroy(struct scsi_device *scsi_device)
1776 struct dc390_acb* pACB = (struct dc390_acb*) scsi_device->host->hostdata;
1777 struct dc390_dcb* pDCB = (struct dc390_dcb*) scsi_device->hostdata;
1778 struct dc390_dcb* pPrevDCB = pACB->pLinkDCB;
1780 pACB->scan_devices = 0;
1782 BUG_ON(pDCB->GoingSRBCnt > 1);
1784 pACB->DCBmap[pDCB->TargetID] &= ~(1 << pDCB->TargetLUN);
1786 if (pDCB == pACB->pLinkDCB) {
1787 if (pACB->pLastDCB == pDCB) {
1788 pDCB->pNextDCB = NULL;
1789 pACB->pLastDCB = NULL;
1791 pACB->pLinkDCB = pDCB->pNextDCB;
1793 while (pPrevDCB->pNextDCB != pDCB)
1794 pPrevDCB = pPrevDCB->pNextDCB;
1795 pPrevDCB->pNextDCB = pDCB->pNextDCB;
1796 if (pDCB == pACB->pLastDCB)
1797 pACB->pLastDCB = pPrevDCB;
1800 if (pDCB == pACB->pActiveDCB)
1801 pACB->pActiveDCB = NULL;
1802 if (pDCB == pACB->pLinkDCB)
1803 pACB->pLinkDCB = pDCB->pNextDCB;
1804 if (pDCB == pACB->pDCBRunRobin)
1805 pACB->pDCBRunRobin = pDCB->pNextDCB;
1811 static int dc390_slave_configure(struct scsi_device *scsi_device)
1813 struct dc390_acb* pACB = (struct dc390_acb*) scsi_device->host->hostdata;
1814 pACB->scan_devices = 0;
1818 static struct scsi_host_template driver_template = {
1819 .module = THIS_MODULE,
1820 .proc_name = "tmscsim",
1821 .proc_info = DC390_proc_info,
1822 .name = DC390_BANNER " V" DC390_VERSION,
1823 .slave_alloc = dc390_slave_alloc,
1824 .slave_configure = dc390_slave_configure,
1825 .slave_destroy = dc390_slave_destroy,
1826 .queuecommand = DC390_queue_command,
1827 .eh_abort_handler = DC390_abort,
1828 .eh_bus_reset_handler = DC390_reset,
1829 .bios_param = DC390_bios_param,
1832 .sg_tablesize = SG_ALL,
1834 .use_clustering = DISABLE_CLUSTERING,
1837 static int __devinit dc390_init_one(struct pci_dev *dev,
1838 const struct pci_device_id *id)
1840 struct Scsi_Host *scsi_host;
1841 unsigned long io_port;
1843 struct dc390_acb* pACB;
1846 if (pci_enable_device(dev))
1849 io_port = pci_resource_start(dev, 0);
1852 /* allocate scsi host information (includes out adapter) */
1853 scsi_host = scsi_host_alloc(&driver_template, sizeof(struct dc390_acb));
1857 pACB = (struct dc390_acb*) scsi_host->hostdata;
1859 if (dc390_CheckEEpromCheckSum (dev, dc390_adapterCnt)) {
1861 dc390_adapname = "AM53C974";
1862 printk(KERN_INFO "DC390_init: No EEPROM found! Trying default settings ...\n");
1863 dc390_check_for_safe_settings();
1864 dc390_fill_with_defaults();
1865 dc390_EEprom_Override(dc390_adapterCnt);
1866 speed = dc390_clock_speed[tmscsim[1]];
1867 printk(KERN_INFO "DC390: Used defaults: AdaptID=%i, SpeedIdx=%i (%i.%i MHz),"
1868 " DevMode=0x%02x, AdaptMode=0x%02x, TaggedCmnds=%i (%i), DelayReset=%is\n",
1869 tmscsim[0], tmscsim[1], speed/10, speed%10,
1870 (u8)tmscsim[2], (u8)tmscsim[3], tmscsim[4], 2 << (tmscsim[4]), tmscsim[5]);
1872 dc390_check_for_safe_settings();
1873 dc390_EEprom_Override(dc390_adapterCnt);
1876 DEBUG0(printk(KERN_INFO "DC390: pSH = %8x, Index %02i\n", (u32) scsi_host, dc390_adapterCnt));
1878 dc390_initACB(scsi_host, io_port, irq, dc390_adapterCnt);
1882 if (dc390_initAdapter(scsi_host, io_port, irq, dc390_adapterCnt)) {
1883 scsi_unregister(scsi_host);
1888 pci_set_master(dev);
1889 dc390_set_pci_cfg(dev);
1892 /* get the scsi mid level to scan for new devices on the bus */
1893 if (scsi_add_host(scsi_host, &dev->dev)) {
1897 pci_set_drvdata(dev, scsi_host);
1898 scsi_scan_host(scsi_host);
1904 scsi_host_put(scsi_host);
1906 pci_disable_device(dev);
1911 * dc390_remove_one - Called to remove a single instance of the adapter.
1913 * @dev: The PCI device to remove.
1915 static void __devexit dc390_remove_one(struct pci_dev *dev)
1917 struct Scsi_Host *scsi_host = pci_get_drvdata(dev);
1918 unsigned long iflags;
1919 struct dc390_acb* pACB = (struct dc390_acb*) scsi_host->hostdata;
1922 scsi_remove_host(scsi_host);
1924 spin_lock_irqsave(scsi_host->host_lock, iflags);
1925 pACB->ACBFlag = RESET_DEV;
1926 bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST;
1927 DC390_write8 (CtrlReg1, bval); /* disable interrupt */
1928 if (pACB->Gmode2 & RST_SCSI_BUS)
1929 dc390_ResetSCSIBus(pACB);
1930 spin_unlock_irqrestore(scsi_host->host_lock, iflags);
1932 del_timer_sync(&pACB->Waiting_Timer);
1934 free_irq(scsi_host->irq, pACB);
1935 release_region(scsi_host->io_port, scsi_host->n_io_port);
1937 pci_disable_device(dev);
1938 scsi_host_put(scsi_host);
1939 pci_set_drvdata(dev, NULL);
1942 /********************************************************************
1943 * Function: DC390_proc_info(char* buffer, char **start,
1944 * off_t offset, int length, int hostno, int inout)
1946 * Purpose: return SCSI Adapter/Device Info
1948 * Input: buffer: Pointer to a buffer where to write info
1951 * hostno: Host adapter index
1952 * inout : Read (=0) or set(!=0) info
1954 * Output: buffer: contains info
1955 * length; length of info in buffer
1957 * return value: length
1959 ********************************************************************/
1962 #define SPRINTF(args...) pos += sprintf(pos, ## args)
1965 if (YN) SPRINTF(" Yes "); \
1966 else SPRINTF(" No ")
1969 static int DC390_proc_info (struct Scsi_Host *shpnt, char *buffer, char **start,
1970 off_t offset, int length, int inout)
1974 struct dc390_acb* pACB;
1975 struct dc390_dcb* pDCB;
1977 pACB = dc390_pACB_start;
1979 while(pACB != (struct dc390_acb*)-1)
1981 if (shpnt == pACB->pScsiHost)
1983 pACB = pACB->pNextACB;
1986 if (pACB == (struct dc390_acb*)-1) return(-ESRCH);
1988 if(inout) /* Has data been written to the file ? */
1991 SPRINTF("Tekram DC390/AM53C974 PCI SCSI Host Adapter, ");
1992 SPRINTF("Driver Version %s\n", DC390_VERSION);
1994 SPRINTF("SCSI Host Nr %i, ", shpnt->host_no);
1995 SPRINTF("%s Adapter Nr %i\n", dc390_adapname, pACB->AdapterIndex);
1996 SPRINTF("IOPortBase 0x%04x, ", pACB->IOPortBase);
1997 SPRINTF("IRQ %02i\n", pACB->IRQLevel);
1999 SPRINTF("MaxID %i, MaxLUN %i, ", shpnt->max_id, shpnt->max_lun);
2000 SPRINTF("AdapterID %i, SelTimeout %i ms, DelayReset %i s\n",
2001 shpnt->this_id, (pACB->sel_timeout*164)/100,
2002 dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]);
2004 SPRINTF("TagMaxNum %i, Status 0x%02x, ACBFlag 0x%02x, GlitchEater %i ns\n",
2005 pACB->TagMaxNum, pACB->status, pACB->ACBFlag, GLITCH_TO_NS(pACB->glitch_cfg)*12);
2007 SPRINTF("Statistics: Cmnds %li, Cmnds not sent directly %i, Out of SRB conds %i\n",
2008 pACB->Cmds, pACB->CmdInQ, pACB->CmdOutOfSRB);
2009 SPRINTF(" Lost arbitrations %i, Sel. connected %i, Connected: %s\n",
2010 pACB->SelLost, pACB->SelConn, pACB->Connected? "Yes": "No");
2012 SPRINTF("Nr of DCBs: %i\n", pACB->DCBCnt);
2013 SPRINTF("Map of attached LUNs: %02x %02x %02x %02x %02x %02x %02x %02x\n",
2014 pACB->DCBmap[0], pACB->DCBmap[1], pACB->DCBmap[2], pACB->DCBmap[3],
2015 pACB->DCBmap[4], pACB->DCBmap[5], pACB->DCBmap[6], pACB->DCBmap[7]);
2017 SPRINTF("Idx ID LUN Prty Sync DsCn SndS TagQ NegoPeriod SyncSpeed SyncOffs MaxCmd\n");
2019 pDCB = pACB->pLinkDCB;
2020 for (dev = 0; dev < pACB->DCBCnt; dev++)
2022 SPRINTF("%02i %02i %02i ", dev, pDCB->TargetID, pDCB->TargetLUN);
2023 YESNO(pDCB->DevMode & PARITY_CHK_);
2024 YESNO(pDCB->SyncMode & SYNC_NEGO_DONE);
2025 YESNO(pDCB->DevMode & EN_DISCONNECT_);
2026 YESNO(pDCB->DevMode & SEND_START_);
2027 YESNO(pDCB->SyncMode & EN_TAG_QUEUEING);
2028 if (pDCB->SyncOffset & 0x0f)
2030 int sp = pDCB->SyncPeriod; if (! (pDCB->CtrlR3 & FAST_SCSI)) sp++;
2031 SPRINTF(" %03i ns ", (pDCB->NegoPeriod) << 2);
2032 spd = 40/(sp); spd1 = 40%(sp);
2033 spd1 = (spd1 * 10 + sp/2) / (sp);
2034 SPRINTF(" %2i.%1i M %02i", spd, spd1, (pDCB->SyncOffset & 0x0f));
2036 else SPRINTF(" (%03i ns) ", (pDCB->NegoPeriod) << 2);
2037 /* Add more info ...*/
2038 SPRINTF (" %02i\n", pDCB->MaxCommand);
2039 pDCB = pDCB->pNextDCB;
2041 if (timer_pending(&pACB->Waiting_Timer)) SPRINTF ("Waiting queue timer running\n");
2042 else SPRINTF ("\n");
2043 pDCB = pACB->pLinkDCB;
2045 for (dev = 0; dev < pACB->DCBCnt; dev++)
2047 struct dc390_srb* pSRB;
2048 if (pDCB->WaitSRBCnt)
2049 SPRINTF ("DCB (%02i-%i): Waiting: %i:", pDCB->TargetID, pDCB->TargetLUN,
2051 for (pSRB = pDCB->pWaitingSRB; pSRB; pSRB = pSRB->pNextSRB)
2052 SPRINTF(" %li", pSRB->pcmd->pid);
2053 if (pDCB->GoingSRBCnt)
2054 SPRINTF ("\nDCB (%02i-%i): Going : %i:", pDCB->TargetID, pDCB->TargetLUN,
2056 for (pSRB = pDCB->pGoingSRB; pSRB; pSRB = pSRB->pNextSRB)
2057 #if 0 //def DC390_DEBUGTRACE
2058 SPRINTF(" %s\n ", pSRB->debugtrace);
2060 SPRINTF(" %li", pSRB->pcmd->pid);
2062 if (pDCB->WaitSRBCnt || pDCB->GoingSRBCnt) SPRINTF ("\n");
2063 pDCB = pDCB->pNextDCB;
2066 #ifdef DC390_DEBUGDCB
2067 SPRINTF ("DCB list for ACB %p:\n", pACB);
2068 pDCB = pACB->pLinkDCB;
2069 SPRINTF ("%p", pDCB);
2070 for (dev = 0; dev < pACB->DCBCnt; dev++, pDCB=pDCB->pNextDCB)
2071 SPRINTF ("->%p", pDCB->pNextDCB);
2075 *start = buffer + offset;
2077 if (pos - buffer < offset)
2079 else if (pos - buffer - offset < length)
2080 return pos - buffer - offset;
2088 static struct pci_driver dc390_driver = {
2090 .id_table = tmscsim_pci_tbl,
2091 .probe = dc390_init_one,
2092 .remove = __devexit_p(dc390_remove_one),
2095 static int __init dc390_module_init(void)
2097 return pci_module_init(&dc390_driver);
2100 static void __exit dc390_module_exit(void)
2102 pci_unregister_driver(&dc390_driver);
2105 module_init(dc390_module_init);
2106 module_exit(dc390_module_exit);