| /************************************************************************ |
| * FILE NAME : TMSCSIM.C * |
| * BY : C.L. Huang, ching@tekram.com.tw * |
| * Description: Device Driver for Tekram DC-390(T) PCI SCSI * |
| * Bus Master Host Adapter * |
| * (C)Copyright 1995-1996 Tekram Technology Co., Ltd. * |
| ************************************************************************ |
| * (C) Copyright: put under GNU GPL in 10/96 * |
| * (see Documentation/scsi/tmscsim.txt) * |
| ************************************************************************ |
| * $Id: tmscsim.c,v 2.60.2.30 2000/12/20 01:07:12 garloff Exp $ * |
| * Enhancements and bugfixes by * |
| * Kurt Garloff <kurt@garloff.de> <garloff@suse.de> * |
| ************************************************************************ |
| * HISTORY: * |
| * * |
| * REV# DATE NAME DESCRIPTION * |
| * 1.00 96/04/24 CLH First release * |
| * 1.01 96/06/12 CLH Fixed bug of Media Change for Removable * |
| * Device, scan all LUN. Support Pre2.0.10 * |
| * 1.02 96/06/18 CLH Fixed bug of Command timeout ... * |
| * 1.03 96/09/25 KG Added tmscsim_proc_info() * |
| * 1.04 96/10/11 CLH Updating for support KV 2.0.x * |
| * 1.05 96/10/18 KG Fixed bug in DC390_abort(null ptr deref)* |
| * 1.06 96/10/25 KG Fixed module support * |
| * 1.07 96/11/09 KG Fixed tmscsim_proc_info() * |
| * 1.08 96/11/18 KG Fixed null ptr in DC390_Disconnect() * |
| * 1.09 96/11/30 KG Added register the allocated IO space * |
| * 1.10 96/12/05 CLH Modified tmscsim_proc_info(), and reset * |
| * pending interrupt in DC390_detect() * |
| * 1.11 97/02/05 KG/CLH Fixeds problem with partitions greater * |
| * than 1GB * |
| * 1.12 98/02/15 MJ Rewritten PCI probing * |
| * 1.13 98/04/08 KG Support for non DC390, __initfunc decls,* |
| * changed max devs from 10 to 16 * |
| * 1.14a 98/05/05 KG Dynamic DCB allocation, add-single-dev * |
| * for LUNs if LUN_SCAN (BIOS) not set * |
| * runtime config using /proc interface * |
| * 1.14b 98/05/06 KG eliminated cli (); sti (); spinlocks * |
| * 1.14c 98/05/07 KG 2.0.x compatibility * |
| * 1.20a 98/05/07 KG changed names of funcs to be consistent * |
| * DC390_ (entry points), dc390_ (internal)* |
| * reworked locking * |
| * 1.20b 98/05/12 KG bugs: version, kfree, _ctmp * |
| * debug output * |
| * 1.20c 98/05/12 KG bugs: kfree, parsing, EEpromDefaults * |
| * 1.20d 98/05/14 KG bugs: list linkage, clear flag after * |
| * reset on startup, code cleanup * |
| * 1.20e 98/05/15 KG spinlock comments, name space cleanup * |
| * pLastDCB now part of ACB structure * |
| * added stats, timeout for 2.1, TagQ bug * |
| * RESET and INQUIRY interface commands * |
| * 1.20f 98/05/18 KG spinlocks fixes, max_lun fix, free DCBs * |
| * for missing LUNs, pending int * |
| * 1.20g 98/05/19 KG Clean up: Avoid short * |
| * 1.20h 98/05/21 KG Remove AdaptSCSIID, max_lun ... * |
| * 1.20i 98/05/21 KG Aiiie: Bug with TagQMask * |
| * 1.20j 98/05/24 KG Handle STAT_BUSY, handle pACB->pLinkDCB * |
| * == 0 in remove_dev and DoingSRB_Done * |
| * 1.20k 98/05/25 KG DMA_INT (experimental) * |
| * 1.20l 98/05/27 KG remove DMA_INT; DMA_IDLE cmds added; * |
| * 1.20m 98/06/10 KG glitch configurable; made some global * |
| * vars part of ACB; use DC390_readX * |
| * 1.20n 98/06/11 KG startup params * |
| * 1.20o 98/06/15 KG added TagMaxNum to boot/module params * |
| * Device Nr -> Idx, TagMaxNum power of 2 * |
| * 1.20p 98/06/17 KG Docu updates. Reset depends on settings * |
| * pci_set_master added; 2.0.xx: pcibios_* * |
| * used instead of MechNum things ... * |
| * 1.20q 98/06/23 KG Changed defaults. Added debug code for * |
| * removable media and fixed it. TagMaxNum * |
| * fixed for DC390. Locking: ACB, DRV for * |
| * better IRQ sharing. Spelling: Queueing * |
| * Parsing and glitch_cfg changes. Display * |
| * real SyncSpeed value. Made DisConn * |
| * functional (!) * |
| * 1.20r 98/06/30 KG Debug macros, allow disabling DsCn, set * |
| * BIT4 in CtrlR4, EN_PAGE_INT, 2.0 module * |
| * param -1 fixed. * |
| * 1.20s 98/08/20 KG Debug info on abort(), try to check PCI,* |
| * phys_to_bus instead of phys_to_virt, * |
| * fixed sel. process, fixed locking, * |
| * added MODULE_XXX infos, changed IRQ * |
| * request flags, disable DMA_INT * |
| * 1.20t 98/09/07 KG TagQ report fixed; Write Erase DMA Stat;* |
| * initfunc -> __init; better abort; * |
| * Timeout for XFER_DONE & BLAST_COMPLETE; * |
| * Allow up to 33 commands being processed * |
| * 2.0a 98/10/14 KG Max Cmnds back to 17. DMA_Stat clearing * |
| * all flags. Clear within while() loops * |
| * in DataIn_0/Out_0. Null ptr in dumpinfo * |
| * for pSRB==0. Better locking during init.* |
| * bios_param() now respects part. table. * |
| * 2.0b 98/10/24 KG Docu fixes. Timeout Msg in DMA Blast. * |
| * Disallow illegal idx in INQUIRY/REMOVE * |
| * 2.0c 98/11/19 KG Cleaned up detect/init for SMP boxes, * |
| * Write Erase DMA (1.20t) caused problems * |
| * 2.0d 98/12/25 KG Christmas release ;-) Message handling * |
| * completely reworked. Handle target ini- * |
| * tiated SDTR correctly. * |
| * 2.0d1 99/01/25 KG Try to handle RESTORE_PTR * |
| * 2.0d2 99/02/08 KG Check for failure of kmalloc, correct * |
| * inclusion of scsicam.h, DelayReset * |
| * 2.0d3 99/05/31 KG DRIVER_OK -> DID_OK, DID_NO_CONNECT, * |
| * detect Target mode and warn. * |
| * pcmd->result handling cleaned up. * |
| * 2.0d4 99/06/01 KG Cleaned selection process. Found bug * |
| * which prevented more than 16 tags. Now: * |
| * 24. SDTR cleanup. Cleaner multi-LUN * |
| * handling. Don't modify ControlRegs/FIFO * |
| * when connected. * |
| * 2.0d5 99/06/01 KG Clear DevID, Fix INQUIRY after cfg chg. * |
| * 2.0d6 99/06/02 KG Added ADD special command to allow cfg. * |
| * before detection. Reset SYNC_NEGO_DONE * |
| * after a bus reset. * |
| * 2.0d7 99/06/03 KG Fixed bugs wrt add,remove commands * |
| * 2.0d8 99/06/04 KG Removed copying of cmnd into CmdBlock. * |
| * Fixed Oops in _release(). * |
| * 2.0d9 99/06/06 KG Also tag queue INQUIRY, T_U_R, ... * |
| * Allow arb. no. of Tagged Cmnds. Max 32 * |
| * 2.0d1099/06/20 KG TagMaxNo changes now honoured! Queueing * |
| * clearified (renamed ..) TagMask handling* |
| * cleaned. * |
| * 2.0d1199/06/28 KG cmd->result now identical to 2.0d2 * |
| * 2.0d1299/07/04 KG Changed order of processing in IRQ * |
| * 2.0d1399/07/05 KG Don't update DCB fields if removed * |
| * 2.0d1499/07/05 KG remove_dev: Move kfree() to the end * |
| * 2.0d1599/07/12 KG use_new_eh_code: 0, ULONG -> UINT where * |
| * appropriate * |
| * 2.0d1699/07/13 KG Reenable StartSCSI interrupt, Retry msg * |
| * 2.0d1799/07/15 KG Remove debug msg. Disable recfg. when * |
| * there are queued cmnds * |
| * 2.0d1899/07/18 KG Selection timeout: Don't requeue * |
| * 2.0d1999/07/18 KG Abort: Only call scsi_done if dequeued * |
| * 2.0d2099/07/19 KG Rst_Detect: DoingSRB_Done * |
| * 2.0d2199/08/15 KG dev_id for request/free_irq, cmnd[0] for* |
| * RETRY, SRBdone does DID_ABORT for the * |
| * cmd passed by DC390_reset() * |
| * 2.0d2299/08/25 KG dev_id fixed. can_queue: 42 * |
| * 2.0d2399/08/25 KG Removed some debugging code. dev_id * |
| * now is set to pACB. Use u8,u16,u32. * |
| * 2.0d2499/11/14 KG Unreg. I/O if failed IRQ alloc. Call * |
| * done () w/ DID_BAD_TARGET in case of * |
| * missing DCB. We are old EH!! * |
| * 2.0d2500/01/15 KG 2.3.3x compat from Andreas Schultz * |
| * set unique_id. Disable RETRY message. * |
| * 2.0d2600/01/29 KG Go to new EH. * |
| * 2.0d2700/01/31 KG ... but maintain 2.0 compat. * |
| * and fix DCB freeing * |
| * 2.0d2800/02/14 KG Queue statistics fixed, dump special cmd* |
| * Waiting_Timer for failed StartSCSI * |
| * New EH: Don't return cmnds to ML on RST * |
| * Use old EH (don't have new EH fns yet) * |
| * Reset: Unlock, but refuse to queue * |
| * 2.3 __setup function * |
| * 2.0e 00/05/22 KG Return residual for 2.3 * |
| * 2.0e1 00/05/25 KG Compile fixes for 2.3.99 * |
| * 2.0e2 00/05/27 KG Jeff Garzik's pci_enable_device() * |
| * 2.0e3 00/09/29 KG Some 2.4 changes. Don't try Sync Nego * |
| * before INQUIRY has reported ability. * |
| * Recognise INQUIRY as scanning command. * |
| * 2.0e4 00/10/13 KG Allow compilation into 2.4 kernel * |
| * 2.0e5 00/11/17 KG Store Inq.flags in DCB * |
| * 2.0e6 00/11/22 KG 2.4 init function (Thx to O.Schumann) * |
| * 2.4 PCI device table (Thx to A.Richter) * |
| * 2.0e7 00/11/28 KG Allow overriding of BIOS settings * |
| * 2.0f 00/12/20 KG Handle failed INQUIRYs during scan * |
| * 2.1a 03/11/29 GL, KG Initial fixing for 2.6. Convert to * |
| * use the current PCI-mapping API, update * |
| * command-queuing. * |
| * 2.1b 04/04/13 GL Fix for 64-bit platforms * |
| * 2.1b1 04/01/31 GL (applied 05.04) Remove internal * |
| * command-queuing. * |
| * 2.1b2 04/02/01 CH (applied 05.04) Fix error-handling * |
| * 2.1c 04/05/23 GL Update to use the new pci_driver API, * |
| * some scsi EH updates, more cleanup. * |
| * 2.1d 04/05/27 GL Moved setting of scan_devices to * |
| * slave_alloc/_configure/_destroy, as * |
| * suggested by CH. * |
| ***********************************************************************/ |
| |
| /* DEBUG options */ |
| //#define DC390_DEBUG0 |
| //#define DC390_DEBUG1 |
| //#define DC390_DCBDEBUG |
| //#define DC390_PARSEDEBUG |
| //#define DC390_REMOVABLEDEBUG |
| //#define DC390_LOCKDEBUG |
| |
| //#define NOP do{}while(0) |
| #define C_NOP |
| |
| /* Debug definitions */ |
| #ifdef DC390_DEBUG0 |
| # define DEBUG0(x) x |
| #else |
| # define DEBUG0(x) C_NOP |
| #endif |
| #ifdef DC390_DEBUG1 |
| # define DEBUG1(x) x |
| #else |
| # define DEBUG1(x) C_NOP |
| #endif |
| #ifdef DC390_DCBDEBUG |
| # define DCBDEBUG(x) x |
| #else |
| # define DCBDEBUG(x) C_NOP |
| #endif |
| #ifdef DC390_PARSEDEBUG |
| # define PARSEDEBUG(x) x |
| #else |
| # define PARSEDEBUG(x) C_NOP |
| #endif |
| #ifdef DC390_REMOVABLEDEBUG |
| # define REMOVABLEDEBUG(x) x |
| #else |
| # define REMOVABLEDEBUG(x) C_NOP |
| #endif |
| #define DCBDEBUG1(x) C_NOP |
| |
| #include <linux/module.h> |
| #include <linux/delay.h> |
| #include <linux/signal.h> |
| #include <linux/sched.h> |
| #include <linux/errno.h> |
| #include <linux/kernel.h> |
| #include <linux/ioport.h> |
| #include <linux/pci.h> |
| #include <linux/proc_fs.h> |
| #include <linux/string.h> |
| #include <linux/mm.h> |
| #include <linux/blkdev.h> |
| #include <linux/timer.h> |
| #include <linux/interrupt.h> |
| #include <linux/init.h> |
| #include <linux/spinlock.h> |
| #include <asm/io.h> |
| |
| #include <scsi/scsi.h> |
| #include <scsi/scsi_cmnd.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_host.h> |
| #include <scsi/scsicam.h> |
| #include <scsi/scsi_tcq.h> |
| |
| |
| #define DC390_BANNER "Tekram DC390/AM53C974" |
| #define DC390_VERSION "2.1d 2004-05-27" |
| |
| #define PCI_DEVICE_ID_AMD53C974 PCI_DEVICE_ID_AMD_SCSI |
| |
| #include "tmscsim.h" |
| |
| |
| static void dc390_DataOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_DataIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| static void dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus); |
| |
| static void dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB ); |
| static void dc390_Disconnect( struct dc390_acb* pACB ); |
| static void dc390_Reselect( struct dc390_acb* pACB ); |
| static void dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB ); |
| static void dc390_ScsiRstDetect( struct dc390_acb* pACB ); |
| static void dc390_EnableMsgOut_Abort(struct dc390_acb*, struct dc390_srb*); |
| static void dc390_dumpinfo(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB); |
| static void dc390_ResetDevParam(struct dc390_acb* pACB); |
| |
| static u32 dc390_laststatus = 0; |
| static u8 dc390_adapterCnt = 0; |
| |
| /* Startup values, to be overriden on the commandline */ |
| static int tmscsim[] = {-2, -2, -2, -2, -2, -2}; |
| |
| module_param_array(tmscsim, int, NULL, 0); |
| MODULE_PARM_DESC(tmscsim, "Host SCSI ID, Speed (0=10MHz), Device Flags, Adapter Flags, Max Tags (log2(tags)-1), DelayReset (s)"); |
| MODULE_AUTHOR("C.L. Huang / Kurt Garloff"); |
| MODULE_DESCRIPTION("SCSI host adapter driver for Tekram DC390 and other AMD53C974A based PCI SCSI adapters"); |
| MODULE_LICENSE("GPL"); |
| MODULE_SUPPORTED_DEVICE("sd,sr,sg,st"); |
| |
| static void *dc390_phase0[]={ |
| dc390_DataOut_0, |
| dc390_DataIn_0, |
| dc390_Command_0, |
| dc390_Status_0, |
| dc390_Nop_0, |
| dc390_Nop_0, |
| dc390_MsgOut_0, |
| dc390_MsgIn_0, |
| dc390_Nop_1 |
| }; |
| |
| static void *dc390_phase1[]={ |
| dc390_DataOutPhase, |
| dc390_DataInPhase, |
| dc390_CommandPhase, |
| dc390_StatusPhase, |
| dc390_Nop_0, |
| dc390_Nop_0, |
| dc390_MsgOutPhase, |
| dc390_MsgInPhase, |
| dc390_Nop_1 |
| }; |
| |
| #ifdef DC390_DEBUG1 |
| static char* dc390_p0_str[] = { |
| "dc390_DataOut_0", |
| "dc390_DataIn_0", |
| "dc390_Command_0", |
| "dc390_Status_0", |
| "dc390_Nop_0", |
| "dc390_Nop_0", |
| "dc390_MsgOut_0", |
| "dc390_MsgIn_0", |
| "dc390_Nop_1" |
| }; |
| |
| static char* dc390_p1_str[] = { |
| "dc390_DataOutPhase", |
| "dc390_DataInPhase", |
| "dc390_CommandPhase", |
| "dc390_StatusPhase", |
| "dc390_Nop_0", |
| "dc390_Nop_0", |
| "dc390_MsgOutPhase", |
| "dc390_MsgInPhase", |
| "dc390_Nop_1" |
| }; |
| #endif |
| |
| static u8 dc390_eepromBuf[MAX_ADAPTER_NUM][EE_LEN]; |
| static u8 dc390_clock_period1[] = {4, 5, 6, 7, 8, 10, 13, 20}; |
| static u8 dc390_clock_speed[] = {100,80,67,57,50, 40, 31, 20}; |
| |
| /*********************************************************************** |
| * Functions for the management of the internal structures |
| * (DCBs, SRBs, Queueing) |
| * |
| **********************************************************************/ |
| static struct dc390_dcb __inline__ *dc390_findDCB ( struct dc390_acb* pACB, u8 id, u8 lun) |
| { |
| struct dc390_dcb* pDCB = pACB->pLinkDCB; if (!pDCB) return NULL; |
| while (pDCB->TargetID != id || pDCB->TargetLUN != lun) |
| { |
| pDCB = pDCB->pNextDCB; |
| if (pDCB == pACB->pLinkDCB) |
| return NULL; |
| } |
| DCBDEBUG1( printk (KERN_DEBUG "DCB %p (%02x,%02x) found.\n", \ |
| pDCB, pDCB->TargetID, pDCB->TargetLUN)); |
| return pDCB; |
| } |
| |
| /* Insert SRB oin top of free list */ |
| static __inline__ void dc390_Free_insert (struct dc390_acb* pACB, struct dc390_srb* pSRB) |
| { |
| DEBUG0(printk ("DC390: Free SRB %p\n", pSRB)); |
| pSRB->pNextSRB = pACB->pFreeSRB; |
| pACB->pFreeSRB = pSRB; |
| } |
| |
| static __inline__ void dc390_Going_append (struct dc390_dcb* pDCB, struct dc390_srb* pSRB) |
| { |
| pDCB->GoingSRBCnt++; |
| DEBUG0(printk("DC390: Append SRB %p to Going\n", pSRB)); |
| /* Append to the list of Going commands */ |
| if( pDCB->pGoingSRB ) |
| pDCB->pGoingLast->pNextSRB = pSRB; |
| else |
| pDCB->pGoingSRB = pSRB; |
| |
| pDCB->pGoingLast = pSRB; |
| /* No next one in sent list */ |
| pSRB->pNextSRB = NULL; |
| } |
| |
| static __inline__ void dc390_Going_remove (struct dc390_dcb* pDCB, struct dc390_srb* pSRB) |
| { |
| DEBUG0(printk("DC390: Remove SRB %p from Going\n", pSRB)); |
| if (pSRB == pDCB->pGoingSRB) |
| pDCB->pGoingSRB = pSRB->pNextSRB; |
| else |
| { |
| struct dc390_srb* psrb = pDCB->pGoingSRB; |
| while (psrb && psrb->pNextSRB != pSRB) |
| psrb = psrb->pNextSRB; |
| if (!psrb) |
| { printk (KERN_ERR "DC390: Remove non-ex. SRB %p from Going!\n", pSRB); return; } |
| psrb->pNextSRB = pSRB->pNextSRB; |
| if (pSRB == pDCB->pGoingLast) |
| pDCB->pGoingLast = psrb; |
| } |
| pDCB->GoingSRBCnt--; |
| } |
| |
| static struct scatterlist* dc390_sg_build_single(struct scatterlist *sg, void *addr, unsigned int length) |
| { |
| memset(sg, 0, sizeof(struct scatterlist)); |
| sg->page = virt_to_page(addr); |
| sg->length = length; |
| sg->offset = (unsigned long)addr & ~PAGE_MASK; |
| return sg; |
| } |
| |
| /* Create pci mapping */ |
| static int dc390_pci_map (struct dc390_srb* pSRB) |
| { |
| int error = 0; |
| struct scsi_cmnd *pcmd = pSRB->pcmd; |
| struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev; |
| dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp)); |
| |
| /* Map sense buffer */ |
| if (pSRB->SRBFlag & AUTO_REQSENSE) { |
| pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->sense_buffer, sizeof(pcmd->sense_buffer)); |
| pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1, |
| DMA_FROM_DEVICE); |
| cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList); |
| |
| /* TODO: error handling */ |
| if (pSRB->SGcount != 1) |
| error = 1; |
| DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __FUNCTION__, pcmd->sense_buffer, cmdp->saved_dma_handle)); |
| /* Map SG list */ |
| } else if (pcmd->use_sg) { |
| pSRB->pSegmentList = (struct scatterlist *) pcmd->request_buffer; |
| pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, pcmd->use_sg, |
| pcmd->sc_data_direction); |
| /* TODO: error handling */ |
| if (!pSRB->SGcount) |
| error = 1; |
| DEBUG1(printk("%s(): Mapped SG %p with %d (%d) elements\n",\ |
| __FUNCTION__, pcmd->request_buffer, pSRB->SGcount, pcmd->use_sg)); |
| /* Map single segment */ |
| } else if (pcmd->request_buffer && pcmd->request_bufflen) { |
| pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->request_buffer, pcmd->request_bufflen); |
| pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1, |
| pcmd->sc_data_direction); |
| cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList); |
| |
| /* TODO: error handling */ |
| if (pSRB->SGcount != 1) |
| error = 1; |
| DEBUG1(printk("%s(): Mapped request buffer %p at %x\n", __FUNCTION__, pcmd->request_buffer, cmdp->saved_dma_handle)); |
| /* No mapping !? */ |
| } else |
| pSRB->SGcount = 0; |
| |
| return error; |
| } |
| |
| /* Remove pci mapping */ |
| static void dc390_pci_unmap (struct dc390_srb* pSRB) |
| { |
| struct scsi_cmnd *pcmd = pSRB->pcmd; |
| struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev; |
| DEBUG1(dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp))); |
| |
| if (pSRB->SRBFlag) { |
| pci_unmap_sg(pdev, &pSRB->Segmentx, 1, DMA_FROM_DEVICE); |
| DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle)); |
| } else if (pcmd->use_sg) { |
| pci_unmap_sg(pdev, pcmd->request_buffer, pcmd->use_sg, pcmd->sc_data_direction); |
| DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n", __FUNCTION__, pcmd->request_buffer, pcmd->use_sg)); |
| } else if (pcmd->request_buffer && pcmd->request_bufflen) { |
| pci_unmap_sg(pdev, &pSRB->Segmentx, 1, pcmd->sc_data_direction); |
| DEBUG1(printk("%s(): Unmapped request buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle)); |
| } |
| } |
| |
| static void __inline__ |
| dc390_freetag (struct dc390_dcb* pDCB, struct dc390_srb* pSRB) |
| { |
| if (pSRB->TagNumber != SCSI_NO_TAG) { |
| pDCB->TagMask &= ~(1 << pSRB->TagNumber); /* free tag mask */ |
| pSRB->TagNumber = SCSI_NO_TAG; |
| } |
| } |
| |
| |
| static int |
| dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB ) |
| { |
| struct scsi_cmnd *scmd = pSRB->pcmd; |
| struct scsi_device *sdev = scmd->device; |
| u8 cmd, disc_allowed, try_sync_nego; |
| char tag[2]; |
| |
| pSRB->ScsiPhase = SCSI_NOP0; |
| |
| if (pACB->Connected) |
| { |
| // Should not happen normally |
| printk (KERN_WARNING "DC390: Can't select when connected! (%08x,%02x)\n", |
| pSRB->SRBState, pSRB->SRBFlag); |
| pSRB->SRBState = SRB_READY; |
| pACB->SelConn++; |
| return 1; |
| } |
| if (time_before (jiffies, pACB->pScsiHost->last_reset)) |
| { |
| DEBUG0(printk ("DC390: We were just reset and don't accept commands yet!\n")); |
| return 1; |
| } |
| /* KG: Moved pci mapping here */ |
| dc390_pci_map(pSRB); |
| /* TODO: error handling */ |
| DC390_write8 (Scsi_Dest_ID, pDCB->TargetID); |
| DC390_write8 (Sync_Period, pDCB->SyncPeriod); |
| DC390_write8 (Sync_Offset, pDCB->SyncOffset); |
| DC390_write8 (CtrlReg1, pDCB->CtrlR1); |
| DC390_write8 (CtrlReg3, pDCB->CtrlR3); |
| DC390_write8 (CtrlReg4, pDCB->CtrlR4); |
| DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); /* Flush FIFO */ |
| DEBUG1(printk (KERN_INFO "DC390: Start SCSI command: %02x (Sync:%02x)\n",\ |
| scmd->cmnd[0], pDCB->SyncMode)); |
| |
| /* Don't disconnect on AUTO_REQSENSE, cause it might be an |
| * Contingent Allegiance Condition (6.6), where no tags should be used. |
| * All other have to be allowed to disconnect to prevent Incorrect |
| * Initiator Connection (6.8.2/6.5.2) */ |
| /* Changed KG, 99/06/06 */ |
| if (! (pSRB->SRBFlag & AUTO_REQSENSE)) |
| disc_allowed = pDCB->DevMode & EN_DISCONNECT_; |
| else |
| disc_allowed = 0; |
| |
| if ((pDCB->SyncMode & SYNC_ENABLE) && pDCB->TargetLUN == 0 && sdev->sdtr && |
| (((scmd->cmnd[0] == REQUEST_SENSE || (pSRB->SRBFlag & AUTO_REQSENSE)) && |
| !(pDCB->SyncMode & SYNC_NEGO_DONE)) || scmd->cmnd[0] == INQUIRY)) |
| try_sync_nego = 1; |
| else |
| try_sync_nego = 0; |
| |
| pSRB->MsgCnt = 0; |
| cmd = SEL_W_ATN; |
| DC390_write8 (ScsiFifo, IDENTIFY(disc_allowed, pDCB->TargetLUN)); |
| /* Change 99/05/31: Don't use tags when not disconnecting (BUSY) */ |
| if ((pDCB->SyncMode & EN_TAG_QUEUEING) && disc_allowed && scsi_populate_tag_msg(scmd, tag)) { |
| DC390_write8(ScsiFifo, tag[0]); |
| pDCB->TagMask |= 1 << tag[1]; |
| pSRB->TagNumber = tag[1]; |
| DC390_write8(ScsiFifo, tag[1]); |
| DEBUG1(printk(KERN_INFO "DC390: Select w/DisCn for Cmd %li (SRB %p), block tag %02x\n", scmd->pid, pSRB, tag[1])); |
| cmd = SEL_W_ATN3; |
| } else { |
| /* No TagQ */ |
| //no_tag: |
| DEBUG1(printk(KERN_INFO "DC390: Select w%s/DisCn for Cmd %li (SRB %p), No TagQ\n", disc_allowed ? "" : "o", scmd->pid, pSRB)); |
| } |
| |
| pSRB->SRBState = SRB_START_; |
| |
| if (try_sync_nego) |
| { |
| u8 Sync_Off = pDCB->SyncOffset; |
| DEBUG0(printk (KERN_INFO "DC390: NEW Sync Nego code triggered (%i %i)\n", pDCB->TargetID, pDCB->TargetLUN)); |
| pSRB->MsgOutBuf[0] = EXTENDED_MESSAGE; |
| pSRB->MsgOutBuf[1] = 3; |
| pSRB->MsgOutBuf[2] = EXTENDED_SDTR; |
| pSRB->MsgOutBuf[3] = pDCB->NegoPeriod; |
| if (!(Sync_Off & 0x0f)) Sync_Off = SYNC_NEGO_OFFSET; |
| pSRB->MsgOutBuf[4] = Sync_Off; |
| pSRB->MsgCnt = 5; |
| //pSRB->SRBState = SRB_MSGOUT_; |
| pSRB->SRBState |= DO_SYNC_NEGO; |
| cmd = SEL_W_ATN_STOP; |
| } |
| |
| /* Command is written in CommandPhase, if SEL_W_ATN_STOP ... */ |
| if (cmd != SEL_W_ATN_STOP) |
| { |
| if( pSRB->SRBFlag & AUTO_REQSENSE ) |
| { |
| DC390_write8 (ScsiFifo, REQUEST_SENSE); |
| DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5); |
| DC390_write8 (ScsiFifo, 0); |
| DC390_write8 (ScsiFifo, 0); |
| DC390_write8 (ScsiFifo, sizeof(scmd->sense_buffer)); |
| DC390_write8 (ScsiFifo, 0); |
| DEBUG1(printk (KERN_DEBUG "DC390: AutoReqSense !\n")); |
| } |
| else /* write cmnd to bus */ |
| { |
| u8 *ptr; u8 i; |
| ptr = (u8 *)scmd->cmnd; |
| for (i = 0; i < scmd->cmd_len; i++) |
| DC390_write8 (ScsiFifo, *(ptr++)); |
| } |
| } |
| DEBUG0(if (pACB->pActiveDCB) \ |
| printk (KERN_WARNING "DC390: ActiveDCB != 0\n")); |
| DEBUG0(if (pDCB->pActiveSRB) \ |
| printk (KERN_WARNING "DC390: ActiveSRB != 0\n")); |
| //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); |
| if (DC390_read8 (Scsi_Status) & INTERRUPT) |
| { |
| dc390_freetag (pDCB, pSRB); |
| DEBUG0(printk ("DC390: Interrupt during Start SCSI (pid %li, target %02i-%02i)\n", |
| scmd->pid, scmd->device->id, scmd->device->lun)); |
| pSRB->SRBState = SRB_READY; |
| //DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); |
| pACB->SelLost++; |
| return 1; |
| } |
| DC390_write8 (ScsiCmd, cmd); |
| pACB->pActiveDCB = pDCB; |
| pDCB->pActiveSRB = pSRB; |
| pACB->Connected = 1; |
| pSRB->ScsiPhase = SCSI_NOP1; |
| return 0; |
| } |
| |
| //#define DMA_INT EN_DMA_INT /*| EN_PAGE_INT*/ |
| #define DMA_INT 0 |
| |
| #if DMA_INT |
| /* This is similar to AM53C974.c ... */ |
| static u8 |
| dc390_dma_intr (struct dc390_acb* pACB) |
| { |
| struct dc390_srb* pSRB; |
| u8 dstate; |
| DEBUG0(u16 pstate; struct pci_dev *pdev = pACB->pdev); |
| |
| DEBUG0(pci_read_config_word(pdev, PCI_STATUS, &pstate)); |
| DEBUG0(if (pstate & (PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY))\ |
| { printk(KERN_WARNING "DC390: PCI state = %04x!\n", pstate); \ |
| pci_write_config_word(pdev, PCI_STATUS, (PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY));}); |
| |
| dstate = DC390_read8 (DMA_Status); |
| |
| if (! pACB->pActiveDCB || ! pACB->pActiveDCB->pActiveSRB) return dstate; |
| else pSRB = pACB->pActiveDCB->pActiveSRB; |
| |
| if (dstate & (DMA_XFER_ABORT | DMA_XFER_ERROR | POWER_DOWN | PCI_MS_ABORT)) |
| { |
| printk (KERN_ERR "DC390: DMA error (%02x)!\n", dstate); |
| return dstate; |
| } |
| if (dstate & DMA_XFER_DONE) |
| { |
| u32 residual, xferCnt; int ctr = 6000000; |
| if (! (DC390_read8 (DMA_Cmd) & READ_DIRECTION)) |
| { |
| do |
| { |
| DEBUG1(printk (KERN_DEBUG "DC390: read residual bytes ... \n")); |
| dstate = DC390_read8 (DMA_Status); |
| residual = DC390_read8 (CtcReg_Low) | DC390_read8 (CtcReg_Mid) << 8 | |
| DC390_read8 (CtcReg_High) << 16; |
| residual += DC390_read8 (Current_Fifo) & 0x1f; |
| } while (residual && ! (dstate & SCSI_INTERRUPT) && --ctr); |
| if (!ctr) printk (KERN_CRIT "DC390: dma_intr: DMA aborted unfinished: %06x bytes remain!!\n", DC390_read32 (DMA_Wk_ByteCntr)); |
| /* residual = ... */ |
| } |
| else |
| residual = 0; |
| |
| /* ??? */ |
| |
| xferCnt = pSRB->SGToBeXferLen - residual; |
| pSRB->SGBusAddr += xferCnt; |
| pSRB->TotalXferredLen += xferCnt; |
| pSRB->SGToBeXferLen = residual; |
| # ifdef DC390_DEBUG0 |
| printk (KERN_INFO "DC390: DMA: residual = %i, xfer = %i\n", |
| (unsigned int)residual, (unsigned int)xferCnt); |
| # endif |
| |
| DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); |
| } |
| dc390_laststatus &= ~0xff000000; dc390_laststatus |= dstate << 24; |
| return dstate; |
| } |
| #endif |
| |
| |
| static void __inline__ |
| dc390_InvalidCmd(struct dc390_acb* pACB) |
| { |
| if (pACB->pActiveDCB->pActiveSRB->SRBState & (SRB_START_ | SRB_MSGOUT)) |
| DC390_write8(ScsiCmd, CLEAR_FIFO_CMD); |
| } |
| |
| |
| static irqreturn_t __inline__ |
| DC390_Interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| { |
| struct dc390_acb *pACB = (struct dc390_acb*)dev_id; |
| struct dc390_dcb *pDCB; |
| struct dc390_srb *pSRB; |
| u8 sstatus=0; |
| u8 phase; |
| void (*stateV)( struct dc390_acb*, struct dc390_srb*, u8 *); |
| u8 istate, istatus; |
| #if DMA_INT |
| u8 dstatus; |
| #endif |
| |
| sstatus = DC390_read8 (Scsi_Status); |
| if( !(sstatus & INTERRUPT) ) |
| return IRQ_NONE; |
| |
| DEBUG1(printk (KERN_DEBUG "sstatus=%02x,", sstatus)); |
| |
| #if DMA_INT |
| spin_lock_irq(pACB->pScsiHost->host_lock); |
| dstatus = dc390_dma_intr (pACB); |
| spin_unlock_irq(pACB->pScsiHost->host_lock); |
| |
| DEBUG1(printk (KERN_DEBUG "dstatus=%02x,", dstatus)); |
| if (! (dstatus & SCSI_INTERRUPT)) |
| { |
| DEBUG0(printk (KERN_WARNING "DC390 Int w/o SCSI actions (only DMA?)\n")); |
| return IRQ_NONE; |
| } |
| #else |
| //DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT); |
| //dstatus = DC390_read8 (DMA_Status); |
| //DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT); |
| #endif |
| |
| spin_lock_irq(pACB->pScsiHost->host_lock); |
| |
| istate = DC390_read8 (Intern_State); |
| istatus = DC390_read8 (INT_Status); /* This clears Scsi_Status, Intern_State and INT_Status ! */ |
| |
| DEBUG1(printk (KERN_INFO "Istatus(Res,Inv,Dis,Serv,Succ,ReS,SelA,Sel)=%02x,",istatus)); |
| dc390_laststatus &= ~0x00ffffff; |
| dc390_laststatus |= /* dstatus<<24 | */ sstatus<<16 | istate<<8 | istatus; |
| |
| if (sstatus & ILLEGAL_OP_ERR) |
| { |
| printk ("DC390: Illegal Operation detected (%08x)!\n", dc390_laststatus); |
| dc390_dumpinfo (pACB, pACB->pActiveDCB, pACB->pActiveDCB->pActiveSRB); |
| } |
| |
| else if (istatus & INVALID_CMD) |
| { |
| printk ("DC390: Invalid Command detected (%08x)!\n", dc390_laststatus); |
| dc390_InvalidCmd( pACB ); |
| goto unlock; |
| } |
| |
| if (istatus & SCSI_RESET) |
| { |
| dc390_ScsiRstDetect( pACB ); |
| goto unlock; |
| } |
| |
| if (istatus & DISCONNECTED) |
| { |
| dc390_Disconnect( pACB ); |
| goto unlock; |
| } |
| |
| if (istatus & RESELECTED) |
| { |
| dc390_Reselect( pACB ); |
| goto unlock; |
| } |
| |
| else if (istatus & (SELECTED | SEL_ATTENTION)) |
| { |
| printk (KERN_ERR "DC390: Target mode not supported!\n"); |
| goto unlock; |
| } |
| |
| if (istatus & (SUCCESSFUL_OP|SERVICE_REQUEST) ) |
| { |
| pDCB = pACB->pActiveDCB; |
| if (!pDCB) |
| { |
| printk (KERN_ERR "DC390: Suc. op/ Serv. req: pActiveDCB = 0!\n"); |
| goto unlock; |
| } |
| pSRB = pDCB->pActiveSRB; |
| if( pDCB->DCBFlag & ABORT_DEV_ ) |
| dc390_EnableMsgOut_Abort (pACB, pSRB); |
| |
| phase = pSRB->ScsiPhase; |
| DEBUG1(printk (KERN_INFO "DC390: [%i]%s(0) (%02x)\n", phase, dc390_p0_str[phase], sstatus)); |
| stateV = (void *) dc390_phase0[phase]; |
| ( *stateV )( pACB, pSRB, &sstatus ); |
| |
| pSRB->ScsiPhase = sstatus & 7; |
| phase = (u8) sstatus & 7; |
| DEBUG1(printk (KERN_INFO "DC390: [%i]%s(1) (%02x)\n", phase, dc390_p1_str[phase], sstatus)); |
| stateV = (void *) dc390_phase1[phase]; |
| ( *stateV )( pACB, pSRB, &sstatus ); |
| } |
| |
| unlock: |
| spin_unlock_irq(pACB->pScsiHost->host_lock); |
| return IRQ_HANDLED; |
| } |
| |
| static irqreturn_t do_DC390_Interrupt( int irq, void *dev_id, struct pt_regs *regs) |
| { |
| irqreturn_t ret; |
| DEBUG1(printk (KERN_INFO "DC390: Irq (%i) caught: ", irq)); |
| /* Locking is done in DC390_Interrupt */ |
| ret = DC390_Interrupt(irq, dev_id, regs); |
| DEBUG1(printk (".. IRQ returned\n")); |
| return ret; |
| } |
| |
| static void |
| dc390_DataOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| u8 sstatus; |
| struct scatterlist *psgl; |
| u32 ResidCnt, xferCnt; |
| u8 dstate = 0; |
| |
| sstatus = *psstatus; |
| |
| if( !(pSRB->SRBState & SRB_XFERPAD) ) |
| { |
| if( sstatus & (PARITY_ERR | ILLEGAL_OP_ERR) ) |
| pSRB->SRBStatus |= PARITY_ERROR; |
| |
| if( sstatus & COUNT_2_ZERO ) |
| { |
| unsigned long timeout = jiffies + HZ; |
| |
| /* Function called from the ISR with the host_lock held and interrupts disabled */ |
| if (pSRB->SGToBeXferLen) |
| while (time_before(jiffies, timeout) && !((dstate = DC390_read8 (DMA_Status)) & DMA_XFER_DONE)) { |
| spin_unlock_irq(pACB->pScsiHost->host_lock); |
| udelay(50); |
| spin_lock_irq(pACB->pScsiHost->host_lock); |
| } |
| if (!time_before(jiffies, timeout)) |
| printk (KERN_CRIT "DC390: Deadlock in DataOut_0: DMA aborted unfinished: %06x bytes remain!!\n", |
| DC390_read32 (DMA_Wk_ByteCntr)); |
| dc390_laststatus &= ~0xff000000; |
| dc390_laststatus |= dstate << 24; |
| pSRB->TotalXferredLen += pSRB->SGToBeXferLen; |
| pSRB->SGIndex++; |
| if( pSRB->SGIndex < pSRB->SGcount ) |
| { |
| pSRB->pSegmentList++; |
| psgl = pSRB->pSegmentList; |
| |
| pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl))); |
| pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl)); |
| } |
| else |
| pSRB->SGToBeXferLen = 0; |
| } |
| else |
| { |
| ResidCnt = (u32) DC390_read8 (Current_Fifo) & 0x1f; |
| ResidCnt |= (u32) DC390_read8 (CtcReg_High) << 16; |
| ResidCnt |= (u32) DC390_read8 (CtcReg_Mid) << 8; |
| ResidCnt += (u32) DC390_read8 (CtcReg_Low); |
| |
| xferCnt = pSRB->SGToBeXferLen - ResidCnt; |
| pSRB->SGBusAddr += xferCnt; |
| pSRB->TotalXferredLen += xferCnt; |
| pSRB->SGToBeXferLen = ResidCnt; |
| } |
| } |
| if ((*psstatus & 7) != SCSI_DATA_OUT) |
| { |
| DC390_write8 (DMA_Cmd, WRITE_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */ |
| DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); |
| } |
| } |
| |
| static void |
| dc390_DataIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| u8 sstatus, residual, bval; |
| struct scatterlist *psgl; |
| u32 ResidCnt, i; |
| unsigned long xferCnt; |
| u8 *ptr; |
| |
| sstatus = *psstatus; |
| |
| if( !(pSRB->SRBState & SRB_XFERPAD) ) |
| { |
| if( sstatus & (PARITY_ERR | ILLEGAL_OP_ERR)) |
| pSRB->SRBStatus |= PARITY_ERROR; |
| |
| if( sstatus & COUNT_2_ZERO ) |
| { |
| int dstate = 0; |
| unsigned long timeout = jiffies + HZ; |
| |
| /* Function called from the ISR with the host_lock held and interrupts disabled */ |
| if (pSRB->SGToBeXferLen) |
| while (time_before(jiffies, timeout) && !((dstate = DC390_read8 (DMA_Status)) & DMA_XFER_DONE)) { |
| spin_unlock_irq(pACB->pScsiHost->host_lock); |
| udelay(50); |
| spin_lock_irq(pACB->pScsiHost->host_lock); |
| } |
| if (!time_before(jiffies, timeout)) { |
| printk (KERN_CRIT "DC390: Deadlock in DataIn_0: DMA aborted unfinished: %06x bytes remain!!\n", |
| DC390_read32 (DMA_Wk_ByteCntr)); |
| printk (KERN_CRIT "DC390: DataIn_0: DMA State: %i\n", dstate); |
| } |
| dc390_laststatus &= ~0xff000000; |
| dc390_laststatus |= dstate << 24; |
| DEBUG1(ResidCnt = ((unsigned long) DC390_read8 (CtcReg_High) << 16) \ |
| + ((unsigned long) DC390_read8 (CtcReg_Mid) << 8) \ |
| + ((unsigned long) DC390_read8 (CtcReg_Low))); |
| DEBUG1(printk (KERN_DEBUG "Count_2_Zero (ResidCnt=%i,ToBeXfer=%li),", ResidCnt, pSRB->SGToBeXferLen)); |
| |
| DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */ |
| |
| pSRB->TotalXferredLen += pSRB->SGToBeXferLen; |
| pSRB->SGIndex++; |
| if( pSRB->SGIndex < pSRB->SGcount ) |
| { |
| pSRB->pSegmentList++; |
| psgl = pSRB->pSegmentList; |
| |
| pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl))); |
| pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl)); |
| } |
| else |
| pSRB->SGToBeXferLen = 0; |
| } |
| else /* phase changed */ |
| { |
| residual = 0; |
| bval = DC390_read8 (Current_Fifo); |
| while( bval & 0x1f ) |
| { |
| DEBUG1(printk (KERN_DEBUG "Check for residuals,")); |
| if( (bval & 0x1f) == 1 ) |
| { |
| for(i=0; i < 0x100; i++) |
| { |
| bval = DC390_read8 (Current_Fifo); |
| if( !(bval & 0x1f) ) |
| goto din_1; |
| else if( i == 0x0ff ) |
| { |
| residual = 1; /* ;1 residual byte */ |
| goto din_1; |
| } |
| } |
| } |
| else |
| bval = DC390_read8 (Current_Fifo); |
| } |
| din_1: |
| DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_BLAST_CMD); |
| for (i = 0xa000; i; i--) |
| { |
| bval = DC390_read8 (DMA_Status); |
| if (bval & BLAST_COMPLETE) |
| break; |
| } |
| /* It seems a DMA Blast abort isn't that bad ... */ |
| if (!i) printk (KERN_ERR "DC390: DMA Blast aborted unfinished!\n"); |
| //DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */ |
| dc390_laststatus &= ~0xff000000; dc390_laststatus |= bval << 24; |
| |
| DEBUG1(printk (KERN_DEBUG "Blast: Read %i times DMA_Status %02x", 0xa000-i, bval)); |
| ResidCnt = (u32) DC390_read8 (CtcReg_High); |
| ResidCnt <<= 8; |
| ResidCnt |= (u32) DC390_read8 (CtcReg_Mid); |
| ResidCnt <<= 8; |
| ResidCnt |= (u32) DC390_read8 (CtcReg_Low); |
| |
| xferCnt = pSRB->SGToBeXferLen - ResidCnt; |
| pSRB->SGBusAddr += xferCnt; |
| pSRB->TotalXferredLen += xferCnt; |
| pSRB->SGToBeXferLen = ResidCnt; |
| |
| if( residual ) |
| { |
| static int feedback_requested; |
| bval = DC390_read8 (ScsiFifo); /* get one residual byte */ |
| |
| if (!feedback_requested) { |
| feedback_requested = 1; |
| printk(KERN_WARNING "%s: Please, contact <linux-scsi@vger.kernel.org> " |
| "to help improve support for your system.\n", __FILE__); |
| } |
| |
| ptr = (u8 *) bus_to_virt( pSRB->SGBusAddr ); |
| *ptr = bval; |
| pSRB->SGBusAddr++; xferCnt++; |
| pSRB->TotalXferredLen++; |
| pSRB->SGToBeXferLen--; |
| } |
| DEBUG1(printk (KERN_DEBUG "Xfered: %li, Total: %li, Remaining: %li\n", xferCnt,\ |
| pSRB->TotalXferredLen, pSRB->SGToBeXferLen)); |
| |
| } |
| } |
| if ((*psstatus & 7) != SCSI_DATA_IN) |
| { |
| DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); |
| DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */ |
| } |
| } |
| |
| static void |
| dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| } |
| |
| static void |
| dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| |
| pSRB->TargetStatus = DC390_read8 (ScsiFifo); |
| //udelay (1); |
| pSRB->EndMessage = DC390_read8 (ScsiFifo); /* get message */ |
| |
| *psstatus = SCSI_NOP0; |
| pSRB->SRBState = SRB_COMPLETED; |
| DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); |
| } |
| |
| static void |
| dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| if( pSRB->SRBState & (SRB_UNEXPECT_RESEL+SRB_ABORT_SENT) ) |
| *psstatus = SCSI_NOP0; |
| //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); |
| } |
| |
| |
| static void __inline__ |
| dc390_reprog (struct dc390_acb* pACB, struct dc390_dcb* pDCB) |
| { |
| DC390_write8 (Sync_Period, pDCB->SyncPeriod); |
| DC390_write8 (Sync_Offset, pDCB->SyncOffset); |
| DC390_write8 (CtrlReg3, pDCB->CtrlR3); |
| DC390_write8 (CtrlReg4, pDCB->CtrlR4); |
| dc390_SetXferRate (pACB, pDCB); |
| } |
| |
| |
| #ifdef DC390_DEBUG0 |
| static void |
| dc390_printMsg (u8 *MsgBuf, u8 len) |
| { |
| int i; |
| printk (" %02x", MsgBuf[0]); |
| for (i = 1; i < len; i++) |
| printk (" %02x", MsgBuf[i]); |
| printk ("\n"); |
| } |
| #endif |
| |
| #define DC390_ENABLE_MSGOUT DC390_write8 (ScsiCmd, SET_ATN_CMD) |
| |
| /* reject_msg */ |
| static void __inline__ |
| dc390_MsgIn_reject (struct dc390_acb* pACB, struct dc390_srb* pSRB) |
| { |
| pSRB->MsgOutBuf[0] = MESSAGE_REJECT; |
| pSRB->MsgCnt = 1; |
| DC390_ENABLE_MSGOUT; |
| DEBUG0 (printk (KERN_INFO "DC390: Reject message\n")); |
| } |
| |
| /* abort command */ |
| static void |
| dc390_EnableMsgOut_Abort ( struct dc390_acb* pACB, struct dc390_srb* pSRB ) |
| { |
| pSRB->MsgOutBuf[0] = ABORT; |
| pSRB->MsgCnt = 1; DC390_ENABLE_MSGOUT; |
| pSRB->pSRBDCB->DCBFlag &= ~ABORT_DEV_; |
| } |
| |
| static struct dc390_srb* |
| dc390_MsgIn_QTag (struct dc390_acb* pACB, struct dc390_dcb* pDCB, s8 tag) |
| { |
| struct dc390_srb* pSRB = pDCB->pGoingSRB; |
| |
| if (pSRB) |
| { |
| struct scsi_cmnd *scmd = scsi_find_tag(pSRB->pcmd->device, tag); |
| pSRB = (struct dc390_srb *)scmd->host_scribble; |
| |
| if (pDCB->DCBFlag & ABORT_DEV_) |
| { |
| pSRB->SRBState = SRB_ABORT_SENT; |
| dc390_EnableMsgOut_Abort( pACB, pSRB ); |
| } |
| |
| if (!(pSRB->SRBState & SRB_DISCONNECT)) |
| goto mingx0; |
| |
| pDCB->pActiveSRB = pSRB; |
| pSRB->SRBState = SRB_DATA_XFER; |
| } |
| else |
| { |
| mingx0: |
| pSRB = pACB->pTmpSRB; |
| pSRB->SRBState = SRB_UNEXPECT_RESEL; |
| pDCB->pActiveSRB = pSRB; |
| pSRB->MsgOutBuf[0] = ABORT_TAG; |
| pSRB->MsgCnt = 1; DC390_ENABLE_MSGOUT; |
| } |
| return pSRB; |
| } |
| |
| |
| /* set async transfer mode */ |
| static void |
| dc390_MsgIn_set_async (struct dc390_acb* pACB, struct dc390_srb* pSRB) |
| { |
| struct dc390_dcb* pDCB = pSRB->pSRBDCB; |
| if (!(pSRB->SRBState & DO_SYNC_NEGO)) |
| printk (KERN_INFO "DC390: Target %i initiates Non-Sync?\n", pDCB->TargetID); |
| pSRB->SRBState &= ~DO_SYNC_NEGO; |
| pDCB->SyncMode &= ~(SYNC_ENABLE+SYNC_NEGO_DONE); |
| pDCB->SyncPeriod = 0; |
| pDCB->SyncOffset = 0; |
| //pDCB->NegoPeriod = 50; /* 200ns <=> 5 MHz */ |
| pDCB->CtrlR3 = FAST_CLK; /* fast clock / normal scsi */ |
| pDCB->CtrlR4 &= 0x3f; |
| pDCB->CtrlR4 |= pACB->glitch_cfg; /* glitch eater */ |
| dc390_reprog (pACB, pDCB); |
| } |
| |
| /* set sync transfer mode */ |
| static void |
| dc390_MsgIn_set_sync (struct dc390_acb* pACB, struct dc390_srb* pSRB) |
| { |
| u8 bval; |
| u16 wval, wval1; |
| struct dc390_dcb* pDCB = pSRB->pSRBDCB; |
| u8 oldsyncperiod = pDCB->SyncPeriod; |
| u8 oldsyncoffset = pDCB->SyncOffset; |
| |
| if (!(pSRB->SRBState & DO_SYNC_NEGO)) |
| { |
| printk (KERN_INFO "DC390: Target %i initiates Sync: %ins %i ... answer ...\n", |
| pDCB->TargetID, pSRB->MsgInBuf[3]<<2, pSRB->MsgInBuf[4]); |
| |
| /* reject */ |
| //dc390_MsgIn_reject (pACB, pSRB); |
| //return dc390_MsgIn_set_async (pACB, pSRB); |
| |
| /* Reply with corrected SDTR Message */ |
| if (pSRB->MsgInBuf[4] > 15) |
| { |
| printk (KERN_INFO "DC390: Lower Sync Offset to 15\n"); |
| pSRB->MsgInBuf[4] = 15; |
| } |
| if (pSRB->MsgInBuf[3] < pDCB->NegoPeriod) |
| { |
| printk (KERN_INFO "DC390: Set sync nego period to %ins\n", pDCB->NegoPeriod << 2); |
| pSRB->MsgInBuf[3] = pDCB->NegoPeriod; |
| } |
| memcpy (pSRB->MsgOutBuf, pSRB->MsgInBuf, 5); |
| pSRB->MsgCnt = 5; |
| DC390_ENABLE_MSGOUT; |
| } |
| |
| pSRB->SRBState &= ~DO_SYNC_NEGO; |
| pDCB->SyncMode |= SYNC_ENABLE+SYNC_NEGO_DONE; |
| pDCB->SyncOffset &= 0x0f0; |
| pDCB->SyncOffset |= pSRB->MsgInBuf[4]; |
| pDCB->NegoPeriod = pSRB->MsgInBuf[3]; |
| |
| wval = (u16) pSRB->MsgInBuf[3]; |
| wval = wval << 2; wval -= 3; wval1 = wval / 25; /* compute speed */ |
| if( (wval1 * 25) != wval) wval1++; |
| bval = FAST_CLK+FAST_SCSI; /* fast clock / fast scsi */ |
| |
| pDCB->CtrlR4 &= 0x3f; /* Glitch eater: 12ns less than normal */ |
| if (pACB->glitch_cfg != NS_TO_GLITCH(0)) |
| pDCB->CtrlR4 |= NS_TO_GLITCH(((GLITCH_TO_NS(pACB->glitch_cfg)) - 1)); |
| else |
| pDCB->CtrlR4 |= NS_TO_GLITCH(0); |
| if (wval1 < 4) pDCB->CtrlR4 |= NS_TO_GLITCH(0); /* Ultra */ |
| |
| if (wval1 >= 8) |
| { |
| wval1--; /* Timing computation differs by 1 from FAST_SCSI */ |
| bval = FAST_CLK; /* fast clock / normal scsi */ |
| pDCB->CtrlR4 |= pACB->glitch_cfg; /* glitch eater */ |
| } |
| |
| pDCB->CtrlR3 = bval; |
| pDCB->SyncPeriod = (u8)wval1; |
| |
| if ((oldsyncperiod != wval1 || oldsyncoffset != pDCB->SyncOffset) && pDCB->TargetLUN == 0) |
| { |
| if (! (bval & FAST_SCSI)) wval1++; |
| printk (KERN_INFO "DC390: Target %i: Sync transfer %i.%1i MHz, Offset %i\n", pDCB->TargetID, |
| 40/wval1, ((40%wval1)*10+wval1/2)/wval1, pDCB->SyncOffset & 0x0f); |
| } |
| |
| dc390_reprog (pACB, pDCB); |
| } |
| |
| |
| /* handle RESTORE_PTR */ |
| /* I presume, this command is already mapped, so, have to remap. */ |
| static void |
| dc390_restore_ptr (struct dc390_acb* pACB, struct dc390_srb* pSRB) |
| { |
| struct scsi_cmnd *pcmd = pSRB->pcmd; |
| struct scatterlist *psgl; |
| pSRB->TotalXferredLen = 0; |
| pSRB->SGIndex = 0; |
| if (pcmd->use_sg) { |
| pSRB->pSegmentList = (struct scatterlist *)pcmd->request_buffer; |
| psgl = pSRB->pSegmentList; |
| //dc390_pci_sync(pSRB); |
| |
| while (pSRB->TotalXferredLen + (unsigned long) sg_dma_len(psgl) < pSRB->Saved_Ptr) |
| { |
| pSRB->TotalXferredLen += (unsigned long) sg_dma_len(psgl); |
| pSRB->SGIndex++; |
| if( pSRB->SGIndex < pSRB->SGcount ) |
| { |
| pSRB->pSegmentList++; |
| psgl = pSRB->pSegmentList; |
| pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl))); |
| pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl)); |
| } |
| else |
| pSRB->SGToBeXferLen = 0; |
| } |
| pSRB->SGToBeXferLen -= (pSRB->Saved_Ptr - pSRB->TotalXferredLen); |
| pSRB->SGBusAddr += (pSRB->Saved_Ptr - pSRB->TotalXferredLen); |
| printk (KERN_INFO "DC390: Pointer restored. Segment %i, Total %li, Bus %08lx\n", |
| pSRB->SGIndex, pSRB->Saved_Ptr, pSRB->SGBusAddr); |
| |
| } else if(pcmd->request_buffer) { |
| //dc390_pci_sync(pSRB); |
| |
| sg_dma_len(&pSRB->Segmentx) = pcmd->request_bufflen - pSRB->Saved_Ptr; |
| pSRB->SGcount = 1; |
| pSRB->pSegmentList = (struct scatterlist *) &pSRB->Segmentx; |
| } else { |
| pSRB->SGcount = 0; |
| printk (KERN_INFO "DC390: RESTORE_PTR message for Transfer without Scatter-Gather ??\n"); |
| } |
| |
| pSRB->TotalXferredLen = pSRB->Saved_Ptr; |
| } |
| |
| |
| /* According to the docs, the AM53C974 reads the message and |
| * generates a Successful Operation IRQ before asserting ACK for |
| * the last byte (how does it know whether it's the last ?) */ |
| /* The old code handled it in another way, indicating, that on |
| * every message byte an IRQ is generated and every byte has to |
| * be manually ACKed. Hmmm ? (KG, 98/11/28) */ |
| /* The old implementation was correct. Sigh! */ |
| |
| /* Check if the message is complete */ |
| static u8 __inline__ |
| dc390_MsgIn_complete (u8 *msgbuf, u32 len) |
| { |
| if (*msgbuf == EXTENDED_MESSAGE) |
| { |
| if (len < 2) return 0; |
| if (len < msgbuf[1] + 2) return 0; |
| } |
| else if (*msgbuf >= 0x20 && *msgbuf <= 0x2f) // two byte messages |
| if (len < 2) return 0; |
| return 1; |
| } |
| |
| |
| |
| /* read and eval received messages */ |
| static void |
| dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| struct dc390_dcb* pDCB = pACB->pActiveDCB; |
| |
| /* Read the msg */ |
| |
| pSRB->MsgInBuf[pACB->MsgLen++] = DC390_read8 (ScsiFifo); |
| //pSRB->SRBState = 0; |
| |
| /* Msg complete ? */ |
| if (dc390_MsgIn_complete (pSRB->MsgInBuf, pACB->MsgLen)) |
| { |
| DEBUG0 (printk (KERN_INFO "DC390: MsgIn:"); dc390_printMsg (pSRB->MsgInBuf, pACB->MsgLen)); |
| /* Now eval the msg */ |
| switch (pSRB->MsgInBuf[0]) |
| { |
| case DISCONNECT: |
| pSRB->SRBState = SRB_DISCONNECT; break; |
| |
| case SIMPLE_QUEUE_TAG: |
| case HEAD_OF_QUEUE_TAG: |
| case ORDERED_QUEUE_TAG: |
| pSRB = dc390_MsgIn_QTag (pACB, pDCB, pSRB->MsgInBuf[1]); |
| break; |
| |
| case MESSAGE_REJECT: |
| DC390_write8 (ScsiCmd, RESET_ATN_CMD); |
| pDCB->NegoPeriod = 50; /* 200ns <=> 5 MHz */ |
| if( pSRB->SRBState & DO_SYNC_NEGO) |
| dc390_MsgIn_set_async (pACB, pSRB); |
| break; |
| |
| case EXTENDED_MESSAGE: |
| /* reject every extended msg but SDTR */ |
| if (pSRB->MsgInBuf[1] != 3 || pSRB->MsgInBuf[2] != EXTENDED_SDTR) |
| dc390_MsgIn_reject (pACB, pSRB); |
| else |
| { |
| if (pSRB->MsgInBuf[3] == 0 || pSRB->MsgInBuf[4] == 0) |
| dc390_MsgIn_set_async (pACB, pSRB); |
| else |
| dc390_MsgIn_set_sync (pACB, pSRB); |
| } |
| |
| // nothing has to be done |
| case COMMAND_COMPLETE: break; |
| |
| // SAVE POINTER may be ignored as we have the struct dc390_srb* associated with the |
| // scsi command. Thanks, Gerard, for pointing it out. |
| case SAVE_POINTERS: |
| pSRB->Saved_Ptr = pSRB->TotalXferredLen; |
| break; |
| // The device might want to restart transfer with a RESTORE |
| case RESTORE_POINTERS: |
| DEBUG0(printk ("DC390: RESTORE POINTER message received ... try to handle\n")); |
| dc390_restore_ptr (pACB, pSRB); |
| break; |
| |
| // reject unknown messages |
| default: dc390_MsgIn_reject (pACB, pSRB); |
| } |
| |
| /* Clear counter and MsgIn state */ |
| pSRB->SRBState &= ~SRB_MSGIN; |
| pACB->MsgLen = 0; |
| } |
| |
| *psstatus = SCSI_NOP0; |
| DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); |
| //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); |
| } |
| |
| |
| static void |
| dc390_DataIO_Comm( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 ioDir) |
| { |
| struct scatterlist *psgl; |
| unsigned long lval; |
| struct dc390_dcb* pDCB = pACB->pActiveDCB; |
| |
| if (pSRB == pACB->pTmpSRB) |
| { |
| if (pDCB) |
| printk(KERN_ERR "DC390: pSRB == pTmpSRB! (TagQ Error?) (%02i-%i)\n", pDCB->TargetID, pDCB->TargetLUN); |
| else |
| printk(KERN_ERR "DC390: pSRB == pTmpSRB! (TagQ Error?) (DCB 0!)\n"); |
| |
| /* Try to recover - some broken disks react badly to tagged INQUIRY */ |
| if (pDCB && pACB->scan_devices && pDCB->GoingSRBCnt == 1) { |
| pSRB = pDCB->pGoingSRB; |
| pDCB->pActiveSRB = pSRB; |
| } else { |
| pSRB->pSRBDCB = pDCB; |
| dc390_EnableMsgOut_Abort(pACB, pSRB); |
| if (pDCB) |
| pDCB->DCBFlag |= ABORT_DEV; |
| return; |
| } |
| } |
| |
| if( pSRB->SGIndex < pSRB->SGcount ) |
| { |
| DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir /* | DMA_INT */); |
| if( !pSRB->SGToBeXferLen ) |
| { |
| psgl = pSRB->pSegmentList; |
| pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl))); |
| pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl)); |
| DEBUG1(printk (KERN_DEBUG " DC390: Next SG segment.")); |
| } |
| lval = pSRB->SGToBeXferLen; |
| DEBUG1(printk (KERN_DEBUG " DC390: Start transfer: %li bytes (address %08lx)\n", lval, pSRB->SGBusAddr)); |
| DC390_write8 (CtcReg_Low, (u8) lval); |
| lval >>= 8; |
| DC390_write8 (CtcReg_Mid, (u8) lval); |
| lval >>= 8; |
| DC390_write8 (CtcReg_High, (u8) lval); |
| |
| DC390_write32 (DMA_XferCnt, pSRB->SGToBeXferLen); |
| DC390_write32 (DMA_XferAddr, pSRB->SGBusAddr); |
| |
| //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); /* | DMA_INT; */ |
| pSRB->SRBState = SRB_DATA_XFER; |
| |
| DC390_write8 (ScsiCmd, DMA_COMMAND+INFO_XFER_CMD); |
| |
| DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir | DMA_INT); |
| //DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT)); |
| //DEBUG1(printk (KERN_DEBUG "DC390: DMA_Status: %02x\n", DC390_read8 (DMA_Status))); |
| //DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT)); |
| } |
| else /* xfer pad */ |
| { |
| if( pSRB->SGcount ) |
| { |
| pSRB->AdaptStatus = H_OVER_UNDER_RUN; |
| pSRB->SRBStatus |= OVER_RUN; |
| DEBUG0(printk (KERN_WARNING " DC390: Overrun -")); |
| } |
| DEBUG0(printk (KERN_WARNING " Clear transfer pad \n")); |
| DC390_write8 (CtcReg_Low, 0); |
| DC390_write8 (CtcReg_Mid, 0); |
| DC390_write8 (CtcReg_High, 0); |
| |
| pSRB->SRBState |= SRB_XFERPAD; |
| DC390_write8 (ScsiCmd, DMA_COMMAND+XFER_PAD_BYTE); |
| /* |
| DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); // | DMA_INT; |
| DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir | DMA_INT); |
| */ |
| } |
| } |
| |
| |
| static void |
| dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| dc390_DataIO_Comm (pACB, pSRB, WRITE_DIRECTION); |
| } |
| |
| static void |
| dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| dc390_DataIO_Comm (pACB, pSRB, READ_DIRECTION); |
| } |
| |
| static void |
| dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| struct dc390_dcb* pDCB; |
| u8 i, cnt; |
| u8 *ptr; |
| |
| DC390_write8 (ScsiCmd, RESET_ATN_CMD); |
| DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); |
| if( !(pSRB->SRBFlag & AUTO_REQSENSE) ) |
| { |
| cnt = (u8) pSRB->pcmd->cmd_len; |
| ptr = (u8 *) pSRB->pcmd->cmnd; |
| for(i=0; i < cnt; i++) |
| DC390_write8 (ScsiFifo, *(ptr++)); |
| } |
| else |
| { |
| DC390_write8 (ScsiFifo, REQUEST_SENSE); |
| pDCB = pACB->pActiveDCB; |
| DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5); |
| DC390_write8 (ScsiFifo, 0); |
| DC390_write8 (ScsiFifo, 0); |
| DC390_write8 (ScsiFifo, sizeof(pSRB->pcmd->sense_buffer)); |
| DC390_write8 (ScsiFifo, 0); |
| DEBUG0(printk(KERN_DEBUG "DC390: AutoReqSense (CmndPhase)!\n")); |
| } |
| pSRB->SRBState = SRB_COMMAND; |
| DC390_write8 (ScsiCmd, INFO_XFER_CMD); |
| } |
| |
| static void |
| dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); |
| pSRB->SRBState = SRB_STATUS; |
| DC390_write8 (ScsiCmd, INITIATOR_CMD_CMPLTE); |
| //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); |
| } |
| |
| static void |
| dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| u8 bval, i, cnt; |
| u8 *ptr; |
| struct dc390_dcb* pDCB; |
| |
| DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); |
| pDCB = pACB->pActiveDCB; |
| if( !(pSRB->SRBState & SRB_MSGOUT) ) |
| { |
| cnt = pSRB->MsgCnt; |
| if( cnt ) |
| { |
| ptr = (u8 *) pSRB->MsgOutBuf; |
| for(i=0; i < cnt; i++) |
| DC390_write8 (ScsiFifo, *(ptr++)); |
| pSRB->MsgCnt = 0; |
| if( (pDCB->DCBFlag & ABORT_DEV_) && |
| (pSRB->MsgOutBuf[0] == ABORT) ) |
| pSRB->SRBState = SRB_ABORT_SENT; |
| } |
| else |
| { |
| bval = ABORT; /* ??? MSG_NOP */ |
| if( (pSRB->pcmd->cmnd[0] == INQUIRY ) || |
| (pSRB->pcmd->cmnd[0] == REQUEST_SENSE) || |
| (pSRB->SRBFlag & AUTO_REQSENSE) ) |
| { |
| if( pDCB->SyncMode & SYNC_ENABLE ) |
| goto mop1; |
| } |
| DC390_write8 (ScsiFifo, bval); |
| } |
| DC390_write8 (ScsiCmd, INFO_XFER_CMD); |
| } |
| else |
| { |
| mop1: |
| printk (KERN_ERR "DC390: OLD Sync Nego code triggered! (%i %i)\n", pDCB->TargetID, pDCB->TargetLUN); |
| DC390_write8 (ScsiFifo, EXTENDED_MESSAGE); |
| DC390_write8 (ScsiFifo, 3); /* ;length of extended msg */ |
| DC390_write8 (ScsiFifo, EXTENDED_SDTR); /* ; sync nego */ |
| DC390_write8 (ScsiFifo, pDCB->NegoPeriod); |
| if (pDCB->SyncOffset & 0x0f) |
| DC390_write8 (ScsiFifo, pDCB->SyncOffset); |
| else |
| DC390_write8 (ScsiFifo, SYNC_NEGO_OFFSET); |
| pSRB->SRBState |= DO_SYNC_NEGO; |
| DC390_write8 (ScsiCmd, INFO_XFER_CMD); |
| } |
| } |
| |
| static void |
| dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); |
| if( !(pSRB->SRBState & SRB_MSGIN) ) |
| { |
| pSRB->SRBState &= ~SRB_DISCONNECT; |
| pSRB->SRBState |= SRB_MSGIN; |
| } |
| DC390_write8 (ScsiCmd, INFO_XFER_CMD); |
| //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); |
| } |
| |
| static void |
| dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| } |
| |
| static void |
| dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus) |
| { |
| } |
| |
| |
| static void |
| dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB ) |
| { |
| u8 bval, i, cnt; |
| struct dc390_dcb* ptr; |
| |
| if( !(pDCB->TargetLUN) ) |
| { |
| if( !pACB->scan_devices ) |
| { |
| ptr = pACB->pLinkDCB; |
| cnt = pACB->DCBCnt; |
| bval = pDCB->TargetID; |
| for(i=0; i<cnt; i++) |
| { |
| if( ptr->TargetID == bval ) |
| { |
| ptr->SyncPeriod = pDCB->SyncPeriod; |
| ptr->SyncOffset = pDCB->SyncOffset; |
| ptr->CtrlR3 = pDCB->CtrlR3; |
| ptr->CtrlR4 = pDCB->CtrlR4; |
| ptr->SyncMode = pDCB->SyncMode; |
| } |
| ptr = ptr->pNextDCB; |
| } |
| } |
| } |
| return; |
| } |
| |
| |
| static void |
| dc390_Disconnect( struct dc390_acb* pACB ) |
| { |
| struct dc390_dcb *pDCB; |
| struct dc390_srb *pSRB, *psrb; |
| u8 i, cnt; |
| |
| DEBUG0(printk(KERN_INFO "DISC,")); |
| |
| if (!pACB->Connected) printk(KERN_ERR "DC390: Disconnect not-connected bus?\n"); |
| pACB->Connected = 0; |
| pDCB = pACB->pActiveDCB; |
| if (!pDCB) |
| { |
| DEBUG0(printk(KERN_ERR "ACB:%p->ActiveDCB:%p IOPort:%04x IRQ:%02x !\n",\ |
| pACB, pDCB, pACB->IOPortBase, pACB->IRQLevel)); |
| mdelay(400); |
| DC390_read8 (INT_Status); /* Reset Pending INT */ |
| DC390_write8 (ScsiCmd, EN_SEL_RESEL); |
| return; |
| } |
| DC390_write8 (ScsiCmd, EN_SEL_RESEL); |
| pSRB = pDCB->pActiveSRB; |
| pACB->pActiveDCB = NULL; |
| pSRB->ScsiPhase = SCSI_NOP0; |
| if( pSRB->SRBState & SRB_UNEXPECT_RESEL ) |
| pSRB->SRBState = 0; |
| else if( pSRB->SRBState & SRB_ABORT_SENT ) |
| { |
| pDCB->TagMask = 0; |
| pDCB->DCBFlag = 0; |
| cnt = pDCB->GoingSRBCnt; |
| pDCB->GoingSRBCnt = 0; |
| pSRB = pDCB->pGoingSRB; |
| for( i=0; i < cnt; i++) |
| { |
| psrb = pSRB->pNextSRB; |
| dc390_Free_insert (pACB, pSRB); |
| pSRB = psrb; |
| } |
| pDCB->pGoingSRB = NULL; |
| } |
| else |
| { |
| if( (pSRB->SRBState & (SRB_START_+SRB_MSGOUT)) || |
| !(pSRB->SRBState & (SRB_DISCONNECT+SRB_COMPLETED)) ) |
| { /* Selection time out */ |
| pSRB->TargetStatus = SCSI_STAT_SEL_TIMEOUT; |
| goto disc1; |
| } |
| else if (!(pSRB->SRBState & SRB_DISCONNECT) && (pSRB->SRBState & SRB_COMPLETED)) |
| { |
| disc1: |
| dc390_freetag (pDCB, pSRB); |
| pDCB->pActiveSRB = NULL; |
| pSRB->SRBState = SRB_FREE; |
| dc390_SRBdone( pACB, pDCB, pSRB); |
| } |
| } |
| pACB->MsgLen = 0; |
| } |
| |
| |
| static void |
| dc390_Reselect( struct dc390_acb* pACB ) |
| { |
| struct dc390_dcb* pDCB; |
| struct dc390_srb* pSRB; |
| u8 id, lun; |
| |
| DEBUG0(printk(KERN_INFO "RSEL,")); |
| pACB->Connected = 1; |
| pDCB = pACB->pActiveDCB; |
| if( pDCB ) |
| { /* Arbitration lost but Reselection won */ |
| DEBUG0(printk ("DC390: (ActiveDCB != 0: Arb. lost but resel. won)!\n")); |
| pSRB = pDCB->pActiveSRB; |
| if( !( pACB->scan_devices ) ) |
| { |
| struct scsi_cmnd *pcmd = pSRB->pcmd; |
| pcmd->resid = pcmd->request_bufflen; |
| SET_RES_DID(pcmd->result, DID_SOFT_ERROR); |
| dc390_Going_remove(pDCB, pSRB); |
| dc390_Free_insert(pACB, pSRB); |
| pcmd->scsi_done (pcmd); |
| DEBUG0(printk(KERN_DEBUG"DC390: Return SRB %p to free\n", pSRB)); |
| } |
| } |
| /* Get ID */ |
| lun = DC390_read8 (ScsiFifo); |
| DEBUG0(printk ("Dev %02x,", lun)); |
| if (!(lun & (1 << pACB->pScsiHost->this_id))) |
| printk (KERN_ERR "DC390: Reselection must select host adapter: %02x!\n", lun); |
| else |
| lun ^= 1 << pACB->pScsiHost->this_id; /* Mask AdapterID */ |
| id = 0; while (lun >>= 1) id++; |
| /* Get LUN */ |
| lun = DC390_read8 (ScsiFifo); |
| if (!(lun & IDENTIFY_BASE)) printk (KERN_ERR "DC390: Resel: Expect identify message!\n"); |
| lun &= 7; |
| DEBUG0(printk ("(%02i-%i),", id, lun)); |
| pDCB = dc390_findDCB (pACB, id, lun); |
| if (!pDCB) |
| { |
| printk (KERN_ERR "DC390: Reselect from non existing device (%02i-%i)\n", |
| id, lun); |
| return; |
| } |
| pACB->pActiveDCB = pDCB; |
| /* TagQ: We expect a message soon, so never mind the exact SRB */ |
| if( pDCB->SyncMode & EN_TAG_QUEUEING ) |
| { |
| pSRB = pACB->pTmpSRB; |
| pDCB->pActiveSRB = pSRB; |
| } |
| else |
| { |
| pSRB = pDCB->pActiveSRB; |
| if( !pSRB || !(pSRB->SRBState & SRB_DISCONNECT) ) |
| { |
| pSRB= pACB->pTmpSRB; |
| pSRB->SRBState = SRB_UNEXPECT_RESEL; |
| printk (KERN_ERR "DC390: Reselect without outstanding cmnd (%02i-%i)\n", |
| id, lun); |
| pDCB->pActiveSRB = pSRB; |
| dc390_EnableMsgOut_Abort ( pACB, pSRB ); |
| } |
| else |
| { |
| if( pDCB->DCBFlag & ABORT_DEV_ ) |
| { |
| pSRB->SRBState = SRB_ABORT_SENT; |
| printk (KERN_INFO "DC390: Reselect: Abort (%02i-%i)\n", |
| id, lun); |
| dc390_EnableMsgOut_Abort( pACB, pSRB ); |
| } |
| else |
| pSRB->SRBState = SRB_DATA_XFER; |
| } |
| } |
| |
| DEBUG1(printk (KERN_DEBUG "Resel SRB(%p): TagNum (%02x)\n", pSRB, pSRB->TagNumber)); |
| pSRB->ScsiPhase = SCSI_NOP0; |
| DC390_write8 (Scsi_Dest_ID, pDCB->TargetID); |
| DC390_write8 (Sync_Period, pDCB->SyncPeriod); |
| DC390_write8 (Sync_Offset, pDCB->SyncOffset); |
| DC390_write8 (CtrlReg1, pDCB->CtrlR1); |
| DC390_write8 (CtrlReg3, pDCB->CtrlR3); |
| DC390_write8 (CtrlReg4, pDCB->CtrlR4); /* ; Glitch eater */ |
| DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); /* ;to release the /ACK signal */ |
| } |
| |
| static int __inline__ |
| dc390_RequestSense(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB) |
| { |
| struct scsi_cmnd *pcmd; |
| |
| pcmd = pSRB->pcmd; |
| |
| REMOVABLEDEBUG(printk(KERN_INFO "DC390: RequestSense(Cmd %02x, Id %02x, LUN %02x)\n",\ |
| pcmd->cmnd[0], pDCB->TargetID, pDCB->TargetLUN)); |
| |
| pSRB->SRBFlag |= AUTO_REQSENSE; |
| pSRB->SavedSGCount = pcmd->use_sg; |
| pSRB->SavedTotXLen = pSRB->TotalXferredLen; |
| pSRB->AdaptStatus = 0; |
| pSRB->TargetStatus = 0; /* CHECK_CONDITION<<1; */ |
| |
| /* We are called from SRBdone, original PCI mapping has been removed |
| * already, new one is set up from StartSCSI */ |
| pSRB->SGIndex = 0; |
| |
| pSRB->TotalXferredLen = 0; |
| pSRB->SGToBeXferLen = 0; |
| return dc390_StartSCSI(pACB, pDCB, pSRB); |
| } |
| |
| |
| static void |
| dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB ) |
| { |
| u8 status; |
| struct scsi_cmnd *pcmd; |
| |
| pcmd = pSRB->pcmd; |
| /* KG: Moved pci_unmap here */ |
| dc390_pci_unmap(pSRB); |
| |
| status = pSRB->TargetStatus; |
| |
| DEBUG0(printk (" SRBdone (%02x,%08x), SRB %p, pid %li\n", status, pcmd->result,\ |
| pSRB, pcmd->pid)); |
| if(pSRB->SRBFlag & AUTO_REQSENSE) |
| { /* Last command was a Request Sense */ |
| pSRB->SRBFlag &= ~AUTO_REQSENSE; |
| pSRB->AdaptStatus = 0; |
| pSRB->TargetStatus = CHECK_CONDITION << 1; |
| |
| //pcmd->result = MK_RES(DRIVER_SENSE,DID_OK,0,status); |
| if (status == (CHECK_CONDITION << 1)) |
| pcmd->result = MK_RES_LNX(0, DID_BAD_TARGET, 0, /*CHECK_CONDITION*/0); |
| else /* Retry */ |
| { |
| if( pSRB->pcmd->cmnd[0] == TEST_UNIT_READY /* || pSRB->pcmd->cmnd[0] == START_STOP */) |
| { |
| /* Don't retry on TEST_UNIT_READY */ |
| pcmd->result = MK_RES_LNX(DRIVER_SENSE,DID_OK,0,CHECK_CONDITION); |
| REMOVABLEDEBUG(printk(KERN_INFO "Cmd=%02x, Result=%08x, XferL=%08x\n",pSRB->pcmd->cmnd[0],\ |
| (u32) pcmd->result, (u32) pSRB->TotalXferredLen)); |
| } else { |
| SET_RES_DRV(pcmd->result, DRIVER_SENSE); |
| pcmd->use_sg = pSRB->SavedSGCount; |
| //pSRB->ScsiCmdLen = (u8) (pSRB->Segment1[0] >> 8); |
| DEBUG0 (printk ("DC390: RETRY pid %li (%02x), target %02i-%02i\n", pcmd->pid, pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun)); |
| pSRB->TotalXferredLen = 0; |
| SET_RES_DID(pcmd->result, DID_SOFT_ERROR); |
| } |
| } |
| goto cmd_done; |
| } |
| if( status ) |
| { |
| if( status_byte(status) == CHECK_CONDITION ) |
| { |
| if (dc390_RequestSense(pACB, pDCB, pSRB)) { |
| SET_RES_DID(pcmd->result, DID_ERROR); |
| goto cmd_done; |
| } |
| return; |
| } |
| else if( status_byte(status) == QUEUE_FULL ) |
| { |
| scsi_track_queue_full(pcmd->device, pDCB->GoingSRBCnt - 1); |
| pcmd->use_sg = pSRB->SavedSGCount; |
| DEBUG0 (printk ("DC390: RETRY pid %li (%02x), target %02i-%02i\n", pcmd->pid, pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun)); |
| pSRB->TotalXferredLen = 0; |
| SET_RES_DID(pcmd->result, DID_SOFT_ERROR); |
| } |
| else if(status == SCSI_STAT_SEL_TIMEOUT) |
| { |
| pSRB->AdaptStatus = H_SEL_TIMEOUT; |
| pSRB->TargetStatus = 0; |
| pcmd->result = MK_RES(0,DID_NO_CONNECT,0,0); |
| /* Devices are removed below ... */ |
| } |
| else if (status_byte(status) == BUSY && |
| (pcmd->cmnd[0] == TEST_UNIT_READY || pcmd->cmnd[0] == INQUIRY) && |
| pACB->scan_devices) |
| { |
| pSRB->AdaptStatus = 0; |
| pSRB->TargetStatus = status; |
| pcmd->result = MK_RES(0,0,pSRB->EndMessage,/*status*/0); |
| } |
| else |
| { /* Another error */ |
| pSRB->TotalXferredLen = 0; |
| SET_RES_DID(pcmd->result, DID_SOFT_ERROR); |
| goto cmd_done; |
| } |
| } |
| else |
| { /* Target status == 0 */ |
| status = pSRB->AdaptStatus; |
| if(status & H_OVER_UNDER_RUN) |
| { |
| pSRB->TargetStatus = 0; |
| SET_RES_DID(pcmd->result,DID_OK); |
| SET_RES_MSG(pcmd->result,pSRB->EndMessage); |
| } |
| else if( pSRB->SRBStatus & PARITY_ERROR) |
| { |
| //pcmd->result = MK_RES(0,DID_PARITY,pSRB->EndMessage,0); |
| SET_RES_DID(pcmd->result,DID_PARITY); |
| SET_RES_MSG(pcmd->result,pSRB->EndMessage); |
| } |
| else /* No error */ |
| { |
| pSRB->AdaptStatus = 0; |
| pSRB->TargetStatus = 0; |
| SET_RES_DID(pcmd->result,DID_OK); |
| } |
| } |
| |
| cmd_done: |
| pcmd->resid = pcmd->request_bufflen - pSRB->TotalXferredLen; |
| |
| dc390_Going_remove (pDCB, pSRB); |
| /* Add to free list */ |
| dc390_Free_insert (pACB, pSRB); |
| |
| DEBUG0(printk (KERN_DEBUG "DC390: SRBdone: done pid %li\n", pcmd->pid)); |
| pcmd->scsi_done (pcmd); |
| |
| return; |
| } |
| |
| |
| /* Remove all SRBs from Going list and inform midlevel */ |
| static void |
| dc390_DoingSRB_Done(struct dc390_acb* pACB, struct scsi_cmnd *cmd) |
| { |
| struct dc390_dcb *pDCB, *pdcb; |
| struct dc390_srb *psrb, *psrb2; |
| int i; |
| struct scsi_cmnd *pcmd; |
| |
| pDCB = pACB->pLinkDCB; |
| pdcb = pDCB; |
| if (! pdcb) return; |
| do |
| { |
| psrb = pdcb->pGoingSRB; |
| for (i = 0; i < pdcb->GoingSRBCnt; i++) |
| { |
| psrb2 = psrb->pNextSRB; |
| pcmd = psrb->pcmd; |
| dc390_Free_insert (pACB, psrb); |
| psrb = psrb2; |
| } |
| pdcb->GoingSRBCnt = 0; |
| pdcb->pGoingSRB = NULL; |
| pdcb->TagMask = 0; |
| pdcb = pdcb->pNextDCB; |
| } while( pdcb != pDCB ); |
| } |
| |
| |
| static void |
| dc390_ResetSCSIBus( struct dc390_acb* pACB ) |
| { |
| //DC390_write8 (ScsiCmd, RST_DEVICE_CMD); |
| //udelay (250); |
| //DC390_write8 (ScsiCmd, NOP_CMD); |
| |
| DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); |
| DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); |
| DC390_write8 (ScsiCmd, RST_SCSI_BUS_CMD); |
| pACB->Connected = 0; |
| |
| return; |
| } |
| |
| static void |
| dc390_ScsiRstDetect( struct dc390_acb* pACB ) |
| { |
| printk ("DC390: Rst_Detect: laststat = %08x\n", dc390_laststatus); |
| //DEBUG0(printk(KERN_INFO "RST_DETECT,")); |
| |
| DC390_write8 (DMA_Cmd, DMA_IDLE_CMD); |
| /* Unlock before ? */ |
| /* delay half a second */ |
| udelay (1000); |
| DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); |
| pACB->pScsiHost->last_reset = jiffies + 5*HZ/2 |
| + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]; |
| pACB->Connected = 0; |
| |
| if( pACB->ACBFlag & RESET_DEV ) |
| pACB->ACBFlag |= RESET_DONE; |
| else |
| { /* Reset was issued by sb else */ |
| pACB->ACBFlag |= RESET_DETECT; |
| |
| dc390_ResetDevParam( pACB ); |
| dc390_DoingSRB_Done( pACB, NULL); |
| //dc390_RecoverSRB( pACB ); |
| pACB->pActiveDCB = NULL; |
| pACB->ACBFlag = 0; |
| } |
| return; |
| } |
| |
| static int DC390_queuecommand(struct scsi_cmnd *cmd, |
| void (*done)(struct scsi_cmnd *)) |
| { |
| struct scsi_device *sdev = cmd->device; |
| struct dc390_acb *acb = (struct dc390_acb *)sdev->host->hostdata; |
| struct dc390_dcb *dcb = sdev->hostdata; |
| struct dc390_srb *srb; |
| |
| if (sdev->queue_depth <= dcb->GoingSRBCnt) |
| goto device_busy; |
| if (acb->pActiveDCB) |
| goto host_busy; |
| if (acb->ACBFlag & (RESET_DETECT|RESET_DONE|RESET_DEV)) |
| goto host_busy; |
| |
| srb = acb->pFreeSRB; |
| if (unlikely(srb == NULL)) |
| goto host_busy; |
| |
| cmd->scsi_done = done; |
| cmd->result = 0; |
| acb->Cmds++; |
| |
| acb->pFreeSRB = srb->pNextSRB; |
| srb->pNextSRB = NULL; |
| |
| srb->pSRBDCB = dcb; |
| srb->pcmd = cmd; |
| cmd->host_scribble = (char *)srb; |
| |
| srb->SGIndex = 0; |
| srb->AdaptStatus = 0; |
| srb->TargetStatus = 0; |
| srb->MsgCnt = 0; |
| |
| srb->SRBStatus = 0; |
| srb->SRBFlag = 0; |
| srb->SRBState = 0; |
| srb->TotalXferredLen = 0; |
| srb->SGBusAddr = 0; |
| srb->SGToBeXferLen = 0; |
| srb->ScsiPhase = 0; |
| srb->EndMessage = 0; |
| srb->TagNumber = SCSI_NO_TAG; |
| |
| if (dc390_StartSCSI(acb, dcb, srb)) { |
| dc390_Free_insert(acb, srb); |
| goto host_busy; |
| } |
| |
| dc390_Going_append(dcb, srb); |
| |
| return 0; |
| |
| host_busy: |
| return SCSI_MLQUEUE_HOST_BUSY; |
| |
| device_busy: |
| return SCSI_MLQUEUE_DEVICE_BUSY; |
| } |
| |
| static void dc390_dumpinfo (struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB) |
| { |
| struct pci_dev *pdev; |
| u16 pstat; |
| |
| if (!pDCB) pDCB = pACB->pActiveDCB; |
| if (!pSRB && pDCB) pSRB = pDCB->pActiveSRB; |
| |
| if (pSRB) |
| { |
| printk ("DC390: SRB: Xferred %08lx, Remain %08lx, State %08x, Phase %02x\n", |
| pSRB->TotalXferredLen, pSRB->SGToBeXferLen, pSRB->SRBState, |
| pSRB->ScsiPhase); |
| printk ("DC390: AdpaterStatus: %02x, SRB Status %02x\n", pSRB->AdaptStatus, pSRB->SRBStatus); |
| } |
| printk ("DC390: Status of last IRQ (DMA/SC/Int/IRQ): %08x\n", dc390_laststatus); |
| printk ("DC390: Register dump: SCSI block:\n"); |
| printk ("DC390: XferCnt Cmd Stat IntS IRQS FFIS Ctl1 Ctl2 Ctl3 Ctl4\n"); |
| printk ("DC390: %06x %02x %02x %02x", |
| DC390_read8(CtcReg_Low) + (DC390_read8(CtcReg_Mid) << 8) + (DC390_read8(CtcReg_High) << 16), |
| DC390_read8(ScsiCmd), DC390_read8(Scsi_Status), DC390_read8(Intern_State)); |
| printk (" %02x %02x %02x %02x %02x %02x\n", |
| DC390_read8(INT_Status), DC390_read8(Current_Fifo), DC390_read8(CtrlReg1), |
| DC390_read8(CtrlReg2), DC390_read8(CtrlReg3), DC390_read8(CtrlReg4)); |
| DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT); |
| if (DC390_read8(Current_Fifo) & 0x1f) |
| { |
| printk ("DC390: FIFO:"); |
| while (DC390_read8(Current_Fifo) & 0x1f) printk (" %02x", DC390_read8(ScsiFifo)); |
| printk ("\n"); |
| } |
| printk ("DC390: Register dump: DMA engine:\n"); |
| printk ("DC390: Cmd STrCnt SBusA WrkBC WrkAC Stat SBusCtrl\n"); |
| printk ("DC390: %02x %08x %08x %08x %08x %02x %08x\n", |
| DC390_read8(DMA_Cmd), DC390_read32(DMA_XferCnt), DC390_read32(DMA_XferAddr), |
| DC390_read32(DMA_Wk_ByteCntr), DC390_read32(DMA_Wk_AddrCntr), |
| DC390_read8(DMA_Status), DC390_read32(DMA_ScsiBusCtrl)); |
| DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT); |
| |
| pdev = pACB->pdev; |
| pci_read_config_word(pdev, PCI_STATUS, &pstat); |
| printk ("DC390: Register dump: PCI Status: %04x\n", pstat); |
| printk ("DC390: In case of driver trouble read Documentation/scsi/tmscsim.txt\n"); |
| } |
| |
| |
| static int DC390_abort(struct scsi_cmnd *cmd) |
| { |
| struct dc390_acb *pACB = (struct dc390_acb*) cmd->device->host->hostdata; |
| struct dc390_dcb *pDCB = (struct dc390_dcb*) cmd->device->hostdata; |
| |
| scmd_printk(KERN_WARNING, cmd, |
| "DC390: Abort command (pid %li)\n", cmd->pid); |
| |
| /* abort() is too stupid for already sent commands at the moment. |
| * If it's called we are in trouble anyway, so let's dump some info |
| * into the syslog at least. (KG, 98/08/20,99/06/20) */ |
| dc390_dumpinfo(pACB, pDCB, NULL); |
| |
| pDCB->DCBFlag |= ABORT_DEV_; |
| printk(KERN_INFO "DC390: Aborted pid %li\n", cmd->pid); |
| |
| return FAILED; |
| } |
| |
| |
| static void dc390_ResetDevParam( struct dc390_acb* pACB ) |
| { |
| struct dc390_dcb *pDCB, *pdcb; |
| |
| pDCB = pACB->pLinkDCB; |
| if (! pDCB) return; |
| pdcb = pDCB; |
| do |
| { |
| pDCB->SyncMode &= ~SYNC_NEGO_DONE; |
| pDCB->SyncPeriod = 0; |
| pDCB->SyncOffset = 0; |
| pDCB->TagMask = 0; |
| pDCB->CtrlR3 = FAST_CLK; |
| pDCB->CtrlR4 &= NEGATE_REQACKDATA | CTRL4_RESERVED | NEGATE_REQACK; |
| pDCB->CtrlR4 |= pACB->glitch_cfg; |
| pDCB = pDCB->pNextDCB; |
| } |
| while( pdcb != pDCB ); |
| pACB->ACBFlag &= ~(RESET_DEV | RESET_DONE | RESET_DETECT); |
| |
| } |
| |
| static int DC390_bus_reset (struct scsi_cmnd *cmd) |
| { |
| struct dc390_acb* pACB = (struct dc390_acb*) cmd->device->host->hostdata; |
| u8 bval; |
| |
| spin_lock_irq(cmd->device->host->host_lock); |
| |
| bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST; |
| DC390_write8(CtrlReg1, bval); /* disable IRQ on bus reset */ |
| |
| pACB->ACBFlag |= RESET_DEV; |
| dc390_ResetSCSIBus(pACB); |
| |
| dc390_ResetDevParam(pACB); |
| mdelay(1); |
| pACB->pScsiHost->last_reset = jiffies + 3*HZ/2 |
| + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]; |
| |
| DC390_write8(ScsiCmd, CLEAR_FIFO_CMD); |
| DC390_read8(INT_Status); /* Reset Pending INT */ |
| |
| dc390_DoingSRB_Done(pACB, cmd); |
| |
| pACB->pActiveDCB = NULL; |
| pACB->ACBFlag = 0; |
| |
| bval = DC390_read8(CtrlReg1) & ~DIS_INT_ON_SCSI_RST; |
| DC390_write8(CtrlReg1, bval); /* re-enable interrupt */ |
| |
| spin_unlock_irq(cmd->device->host->host_lock); |
| |
| return SUCCESS; |
| } |
| |
| /** |
| * dc390_slave_alloc - Called by the scsi mid layer to tell us about a new |
| * scsi device that we need to deal with. |
| * |
| * @scsi_device: The new scsi device that we need to handle. |
| */ |
| static int dc390_slave_alloc(struct scsi_device *scsi_device) |
| { |
| struct dc390_acb *pACB = (struct dc390_acb*) scsi_device->host->hostdata; |
| struct dc390_dcb *pDCB, *pDCB2 = NULL; |
| uint id = scsi_device->id; |
| uint lun = scsi_device->lun; |
| |
| pDCB = kmalloc(sizeof(struct dc390_dcb), GFP_KERNEL); |
| if (!pDCB) |
| return -ENOMEM; |
| memset(pDCB, 0, sizeof(struct dc390_dcb)); |
| |
| if (!pACB->DCBCnt++) { |
| pACB->pLinkDCB = pDCB; |
| pACB->pDCBRunRobin = pDCB; |
| } else { |
| pACB->pLastDCB->pNextDCB = pDCB; |
| } |
| |
| pDCB->pNextDCB = pACB->pLinkDCB; |
| pACB->pLastDCB = pDCB; |
| |
| pDCB->pDCBACB = pACB; |
| pDCB->TargetID = id; |
| pDCB->TargetLUN = lun; |
| |
| /* |
| * Some values are for all LUNs: Copy them |
| * In a clean way: We would have an own structure for a SCSI-ID |
| */ |
| if (lun && (pDCB2 = dc390_findDCB(pACB, id, 0))) { |
| pDCB->DevMode = pDCB2->DevMode; |
| pDCB->SyncMode = pDCB2->SyncMode & SYNC_NEGO_DONE; |
| pDCB->SyncPeriod = pDCB2->SyncPeriod; |
| pDCB->SyncOffset = pDCB2->SyncOffset; |
| pDCB->NegoPeriod = pDCB2->NegoPeriod; |
| |
| pDCB->CtrlR3 = pDCB2->CtrlR3; |
| pDCB->CtrlR4 = pDCB2->CtrlR4; |
| } else { |
| u8 index = pACB->AdapterIndex; |
| PEEprom prom = (PEEprom) &dc390_eepromBuf[index][id << 2]; |
| |
| pDCB->DevMode = prom->EE_MODE1; |
| pDCB->NegoPeriod = |
| (dc390_clock_period1[prom->EE_SPEED] * 25) >> 2; |
| pDCB->CtrlR3 = FAST_CLK; |
| pDCB->CtrlR4 = pACB->glitch_cfg | CTRL4_RESERVED; |
| if (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION) |
| pDCB->CtrlR4 |= NEGATE_REQACKDATA | NEGATE_REQACK; |
| } |
| |
| if (pDCB->DevMode & SYNC_NEGO_) |
| pDCB->SyncMode |= SYNC_ENABLE; |
| else { |
| pDCB->SyncMode = 0; |
| pDCB->SyncOffset &= ~0x0f; |
| } |
| |
| pDCB->CtrlR1 = pACB->pScsiHost->this_id; |
| if (pDCB->DevMode & PARITY_CHK_) |
| pDCB->CtrlR1 |= PARITY_ERR_REPO; |
| |
| pACB->scan_devices = 1; |
| scsi_device->hostdata = pDCB; |
| return 0; |
| } |
| |
| /** |
| * dc390_slave_destroy - Called by the scsi mid layer to tell us about a |
| * device that is going away. |
| * |
| * @scsi_device: The scsi device that we need to remove. |
| */ |
| static void dc390_slave_destroy(struct scsi_device *scsi_device) |
| { |
| struct dc390_acb* pACB = (struct dc390_acb*) scsi_device->host->hostdata; |
| struct dc390_dcb* pDCB = (struct dc390_dcb*) scsi_device->hostdata; |
| struct dc390_dcb* pPrevDCB = pACB->pLinkDCB; |
| |
| pACB->scan_devices = 0; |
| |
| BUG_ON(pDCB->GoingSRBCnt > 1); |
| |
| if (pDCB == pACB->pLinkDCB) { |
| if (pACB->pLastDCB == pDCB) { |
| pDCB->pNextDCB = NULL; |
| pACB->pLastDCB = NULL; |
| } |
| pACB->pLinkDCB = pDCB->pNextDCB; |
| } else { |
| while (pPrevDCB->pNextDCB != pDCB) |
| pPrevDCB = pPrevDCB->pNextDCB; |
| pPrevDCB->pNextDCB = pDCB->pNextDCB; |
| if (pDCB == pACB->pLastDCB) |
| pACB->pLastDCB = pPrevDCB; |
| } |
| |
| if (pDCB == pACB->pActiveDCB) |
| pACB->pActiveDCB = NULL; |
| if (pDCB == pACB->pLinkDCB) |
| pACB->pLinkDCB = pDCB->pNextDCB; |
| if (pDCB == pACB->pDCBRunRobin) |
| pACB->pDCBRunRobin = pDCB->pNextDCB; |
| kfree(pDCB); |
| |
| pACB->DCBCnt--; |
| } |
| |
| static int dc390_slave_configure(struct scsi_device *sdev) |
| { |
| struct dc390_acb *acb = (struct dc390_acb *)sdev->host->hostdata; |
| struct dc390_dcb *dcb = (struct dc390_dcb *)sdev->hostdata; |
| |
| acb->scan_devices = 0; |
| if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) { |
| dcb->SyncMode |= EN_TAG_QUEUEING; |
| scsi_activate_tcq(sdev, acb->TagMaxNum); |
| } |
| |
| return 0; |
| } |
| |
| static struct scsi_host_template driver_template = { |
| .module = THIS_MODULE, |
| .proc_name = "tmscsim", |
| .name = DC390_BANNER " V" DC390_VERSION, |
| .slave_alloc = dc390_slave_alloc, |
| .slave_configure = dc390_slave_configure, |
| .slave_destroy = dc390_slave_destroy, |
| .queuecommand = DC390_queuecommand, |
| .eh_abort_handler = DC390_abort, |
| .eh_bus_reset_handler = DC390_bus_reset, |
| .can_queue = 1, |
| .this_id = 7, |
| .sg_tablesize = SG_ALL, |
| .cmd_per_lun = 1, |
| .use_clustering = DISABLE_CLUSTERING, |
| }; |
| |
| /*********************************************************************** |
| * Functions for access to DC390 EEPROM |
| * and some to emulate it |
| * |
| **********************************************************************/ |
| |
| static void __devinit dc390_eeprom_prepare_read(struct pci_dev *pdev, u8 cmd) |
| { |
| u8 carryFlag = 1, j = 0x80, bval; |
| int i; |
| |
| for (i = 0; i < 9; i++) { |
| if (carryFlag) { |
| pci_write_config_byte(pdev, 0x80, 0x40); |
| bval = 0xc0; |
| } else |
| bval = 0x80; |
| |
| udelay(160); |
| pci_write_config_byte(pdev, 0x80, bval); |
| udelay(160); |
| pci_write_config_byte(pdev, 0x80, 0); |
| udelay(160); |
| |
| carryFlag = (cmd & j) ? 1 : 0; |
| j >>= 1; |
| } |
| } |
| |
| static u16 __devinit dc390_eeprom_get_data(struct pci_dev *pdev) |
| { |
| int i; |
| u16 wval = 0; |
| u8 bval; |
| |
| for (i = 0; i < 16; i++) { |
| wval <<= 1; |
| |
| pci_write_config_byte(pdev, 0x80, 0x80); |
| udelay(160); |
| pci_write_config_byte(pdev, 0x80, 0x40); |
| udelay(160); |
| pci_read_config_byte(pdev, 0x00, &bval); |
| |
| if (bval == 0x22) |
| wval |= 1; |
| } |
| |
| return wval; |
| } |
| |
| static void __devinit dc390_read_eeprom(struct pci_dev *pdev, u16 *ptr) |
| { |
| u8 cmd = EEPROM_READ, i; |
| |
| for (i = 0; i < 0x40; i++) { |
| pci_write_config_byte(pdev, 0xc0, 0); |
| udelay(160); |
| |
| dc390_eeprom_prepare_read(pdev, cmd++); |
| *ptr++ = dc390_eeprom_get_data(pdev); |
| |
| pci_write_config_byte(pdev, 0x80, 0); |
| pci_write_config_byte(pdev, 0x80, 0); |
| udelay(160); |
| } |
| } |
| |
| /* Override EEprom values with explicitly set values */ |
| static void __devinit dc390_eeprom_override(u8 index) |
| { |
| u8 *ptr = (u8 *) dc390_eepromBuf[index], id; |
| |
| /* Adapter Settings */ |
| if (tmscsim[0] != -2) |
| ptr[EE_ADAPT_SCSI_ID] = (u8)tmscsim[0]; /* Adapter ID */ |
| if (tmscsim[3] != -2) |
| ptr[EE_MODE2] = (u8)tmscsim[3]; |
| if (tmscsim[5] != -2) |
| ptr[EE_DELAY] = tmscsim[5]; /* Reset delay */ |
| if (tmscsim[4] != -2) |
| ptr[EE_TAG_CMD_NUM] = (u8)tmscsim[4]; /* Tagged Cmds */ |
| |
| /* Device Settings */ |
| for (id = 0; id < MAX_SCSI_ID; id++) { |
| if (tmscsim[2] != -2) |
| ptr[id << 2] = (u8)tmscsim[2]; /* EE_MODE1 */ |
| if (tmscsim[1] != -2) |
| ptr[(id << 2) + 1] = (u8)tmscsim[1]; /* EE_Speed */ |
| } |
| } |
| |
| static int __devinitdata tmscsim_def[] = { |
| 7, |
| 0 /* 10MHz */, |
| PARITY_CHK_ | SEND_START_ | EN_DISCONNECT_ | SYNC_NEGO_ | TAG_QUEUEING_, |
| MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION | LUN_CHECK, |
| 3 /* 16 Tags per LUN */, |
| 1 /* s delay after Reset */, |
| }; |
| |
| /* Copy defaults over set values where missing */ |
| static void __devinit dc390_fill_with_defaults (void) |
| { |
| int i; |
| |
| for (i = 0; i < 6; i++) { |
| if (tmscsim[i] < 0 || tmscsim[i] > 255) |
| tmscsim[i] = tmscsim_def[i]; |
| } |
| |
| /* Sanity checks */ |
| if (tmscsim[0] > 7) |
| tmscsim[0] = 7; |
| if (tmscsim[1] > 7) |
| tmscsim[1] = 4; |
| if (tmscsim[4] > 5) |
| tmscsim[4] = 4; |
| if (tmscsim[5] > 180) |
| tmscsim[5] = 180; |
| } |
| |
| static void __devinit dc390_check_eeprom(struct pci_dev *pdev, u8 index) |
| { |
| u8 interpd[] = {1, 3, 5, 10, 16, 30, 60, 120}; |
| u8 EEbuf[128]; |
| u16 *ptr = (u16 *)EEbuf, wval = 0; |
| int i; |
| |
| dc390_read_eeprom(pdev, ptr); |
| memcpy(dc390_eepromBuf[index], EEbuf, EE_ADAPT_SCSI_ID); |
| memcpy(&dc390_eepromBuf[index][EE_ADAPT_SCSI_ID], |
| &EEbuf[REAL_EE_ADAPT_SCSI_ID], EE_LEN - EE_ADAPT_SCSI_ID); |
| |
| dc390_eepromBuf[index][EE_DELAY] = interpd[dc390_eepromBuf[index][EE_DELAY]]; |
| |
| for (i = 0; i < 0x40; i++, ptr++) |
| wval += *ptr; |
| |
| /* no Tekram EEprom found */ |
| if (wval != 0x1234) { |
| int speed; |
| |
| printk(KERN_INFO "DC390_init: No EEPROM found! Trying default settings ...\n"); |
| |
| /* |
| * XXX(hch): bogus, because we might have tekram and |
| * non-tekram hbas in a single machine. |
| */ |
| dc390_fill_with_defaults(); |
| |
| speed = dc390_clock_speed[tmscsim[1]]; |
| printk(KERN_INFO "DC390: Used defaults: AdaptID=%i, SpeedIdx=%i (%i.%i MHz), " |
| "DevMode=0x%02x, AdaptMode=0x%02x, TaggedCmnds=%i (%i), DelayReset=%is\n", |
| tmscsim[0], tmscsim[1], speed / 10, speed % 10, |
| (u8)tmscsim[2], (u8)tmscsim[3], tmscsim[4], 2 << (tmscsim[4]), tmscsim[5]); |
| } |
| } |
| |
| static void __devinit dc390_init_hw(struct dc390_acb *pACB, u8 index) |
| { |
| struct Scsi_Host *shost = pACB->pScsiHost; |
| u8 dstate; |
| |
| /* Disable SCSI bus reset interrupt */ |
| DC390_write8(CtrlReg1, DIS_INT_ON_SCSI_RST | shost->this_id); |
| |
| if (pACB->Gmode2 & RST_SCSI_BUS) { |
| dc390_ResetSCSIBus(pACB); |
| udelay(1000); |
| shost->last_reset = jiffies + HZ/2 + |
| HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]; |
| } |
| |
| pACB->ACBFlag = 0; |
| |
| /* Reset Pending INT */ |
| DC390_read8(INT_Status); |
| |
| /* 250ms selection timeout */ |
| DC390_write8(Scsi_TimeOut, SEL_TIMEOUT); |
| |
| /* Conversion factor = 0 , 40MHz clock */ |
| DC390_write8(Clk_Factor, CLK_FREQ_40MHZ); |
| |
| /* NOP cmd - clear command register */ |
| DC390_write8(ScsiCmd, NOP_CMD); |
| |
| /* Enable Feature and SCSI-2 */ |
| DC390_write8(CtrlReg2, EN_FEATURE+EN_SCSI2_CMD); |
| |
| /* Fast clock */ |
| DC390_write8(CtrlReg3, FAST_CLK); |
| |
| /* Negation */ |
| DC390_write8(CtrlReg4, pACB->glitch_cfg | /* glitch eater */ |
| (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION) ? |
| NEGATE_REQACKDATA : 0); |
| |
| /* Clear Transfer Count High: ID */ |
| DC390_write8(CtcReg_High, 0); |
| DC390_write8(DMA_Cmd, DMA_IDLE_CMD); |
| DC390_write8(ScsiCmd, CLEAR_FIFO_CMD); |
| DC390_write32(DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT); |
| |
| dstate = DC390_read8(DMA_Status); |
| DC390_write8(DMA_Status, dstate); |
| } |
| |
| static int __devinit dc390_probe_one(struct pci_dev *pdev, |
| const struct pci_device_id *id) |
| { |
| struct dc390_acb *pACB; |
| struct Scsi_Host *shost; |
| unsigned long io_port; |
| int error = -ENODEV, i; |
| |
| if (pci_enable_device(pdev)) |
| goto out; |
| |
| pci_set_master(pdev); |
| |
| error = -ENOMEM; |
| shost = scsi_host_alloc(&driver_template, sizeof(struct dc390_acb)); |
| if (!shost) |
| goto out_disable_device; |
| |
| pACB = (struct dc390_acb *)shost->hostdata; |
| memset(pACB, 0, sizeof(struct dc390_acb)); |
| |
| dc390_check_eeprom(pdev, dc390_adapterCnt); |
| dc390_eeprom_override(dc390_adapterCnt); |
| |
| io_port = pci_resource_start(pdev, 0); |
| |
| shost->this_id = dc390_eepromBuf[dc390_adapterCnt][EE_ADAPT_SCSI_ID]; |
| shost->io_port = io_port; |
| shost->n_io_port = 0x80; |
| shost->irq = pdev->irq; |
| shost->base = io_port; |
| shost->unique_id = io_port; |
| shost->last_reset = jiffies; |
| |
| pACB->pScsiHost = shost; |
| pACB->IOPortBase = (u16) io_port; |
| pACB->IRQLevel = pdev->irq; |
| |
| shost->max_id = 8; |
| |
| if (shost->max_id - 1 == |
| dc390_eepromBuf[dc390_adapterCnt][EE_ADAPT_SCSI_ID]) |
| shost->max_id--; |
| |
| if (dc390_eepromBuf[dc390_adapterCnt][EE_MODE2] & LUN_CHECK) |
| shost->max_lun = 8; |
| else |
| shost->max_lun = 1; |
| |
| pACB->pFreeSRB = pACB->SRB_array; |
| pACB->SRBCount = MAX_SRB_CNT; |
| pACB->AdapterIndex = dc390_adapterCnt; |
| pACB->TagMaxNum = |
| 2 << dc390_eepromBuf[dc390_adapterCnt][EE_TAG_CMD_NUM]; |
| pACB->Gmode2 = dc390_eepromBuf[dc390_adapterCnt][EE_MODE2]; |
| |
| for (i = 0; i < pACB->SRBCount-1; i++) |
| pACB->SRB_array[i].pNextSRB = &pACB->SRB_array[i+1]; |
| pACB->SRB_array[pACB->SRBCount-1].pNextSRB = NULL; |
| pACB->pTmpSRB = &pACB->TmpSRB; |
| |
| pACB->sel_timeout = SEL_TIMEOUT; |
| pACB->glitch_cfg = EATER_25NS; |
| pACB->pdev = pdev; |
| |
| if (!request_region(io_port, shost->n_io_port, "tmscsim")) { |
| printk(KERN_ERR "DC390: register IO ports error!\n"); |
| goto out_host_put; |
| } |
| |
| /* Reset Pending INT */ |
| DC390_read8_(INT_Status, io_port); |
| |
| if (request_irq(pdev->irq, do_DC390_Interrupt, SA_SHIRQ, |
| "tmscsim", pACB)) { |
| printk(KERN_ERR "DC390: register IRQ error!\n"); |
| goto out_release_region; |
| } |
| |
| dc390_init_hw(pACB, dc390_adapterCnt); |
| |
| dc390_adapterCnt++; |
| |
| pci_set_drvdata(pdev, shost); |
| |
| error = scsi_add_host(shost, &pdev->dev); |
| if (error) |
| goto out_free_irq; |
| scsi_scan_host(shost); |
| return 0; |
| |
| out_free_irq: |
| free_irq(pdev->irq, pACB); |
| out_release_region: |
| release_region(io_port, shost->n_io_port); |
| out_host_put: |
| scsi_host_put(shost); |
| out_disable_device: |
| pci_disable_device(pdev); |
| out: |
| return error; |
| } |
| |
| /** |
| * dc390_remove_one - Called to remove a single instance of the adapter. |
| * |
| * @dev: The PCI device to remove. |
| */ |
| static void __devexit dc390_remove_one(struct pci_dev *dev) |
| { |
| struct Scsi_Host *scsi_host = pci_get_drvdata(dev); |
| unsigned long iflags; |
| struct dc390_acb* pACB = (struct dc390_acb*) scsi_host->hostdata; |
| u8 bval; |
| |
| scsi_remove_host(scsi_host); |
| |
| spin_lock_irqsave(scsi_host->host_lock, iflags); |
| pACB->ACBFlag = RESET_DEV; |
| bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST; |
| DC390_write8 (CtrlReg1, bval); /* disable interrupt */ |
| if (pACB->Gmode2 & RST_SCSI_BUS) |
| dc390_ResetSCSIBus(pACB); |
| spin_unlock_irqrestore(scsi_host->host_lock, iflags); |
| |
| free_irq(scsi_host->irq, pACB); |
| release_region(scsi_host->io_port, scsi_host->n_io_port); |
| |
| pci_disable_device(dev); |
| scsi_host_put(scsi_host); |
| pci_set_drvdata(dev, NULL); |
| } |
| |
| static struct pci_device_id tmscsim_pci_tbl[] = { |
| { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD53C974, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(pci, tmscsim_pci_tbl); |
| |
| static struct pci_driver dc390_driver = { |
| .name = "tmscsim", |
| .id_table = tmscsim_pci_tbl, |
| .probe = dc390_probe_one, |
| .remove = __devexit_p(dc390_remove_one), |
| }; |
| |
| static int __init dc390_module_init(void) |
| { |
| if (tmscsim[0] == -1 || tmscsim[0] > 15) { |
| tmscsim[0] = 7; |
| tmscsim[1] = 4; |
| tmscsim[2] = PARITY_CHK_ | TAG_QUEUEING_; |
| tmscsim[3] = MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION; |
| tmscsim[4] = 2; |
| tmscsim[5] = 10; |
| printk (KERN_INFO "DC390: Using safe settings.\n"); |
| } |
| |
| return pci_module_init(&dc390_driver); |
| } |
| |
| static void __exit dc390_module_exit(void) |
| { |
| pci_unregister_driver(&dc390_driver); |
| } |
| |
| module_init(dc390_module_init); |
| module_exit(dc390_module_exit); |
| |
| #ifndef MODULE |
| static int __init dc390_setup (char *str) |
| { |
| int ints[8],i, im; |
| |
| get_options(str, ARRAY_SIZE(ints), ints); |
| im = ints[0]; |
| |
| if (im > 6) { |
| printk (KERN_NOTICE "DC390: ignore extra params!\n"); |
| im = 6; |
| } |
| |
| for (i = 0; i < im; i++) |
| tmscsim[i] = ints[i+1]; |
| /* dc390_checkparams (); */ |
| return 1; |
| } |
| |
| __setup("tmscsim=", dc390_setup); |
| #endif |