- /***********************************************************************
- * 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 README.tmscsim) *
- *************************************************************************/
- /* $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 *
- ***********************************************************************/
- /* Uncomment SA_INTERRUPT, if the driver refuses to share its IRQ with other devices */
- #define DC390_IRQ SA_SHIRQ /* | SA_INTERRUPT */
- /* DEBUG options */
- //#define DC390_DEBUG0
- //#define DC390_DEBUG1
- //#define DC390_DCBDEBUG
- //#define DC390_PARSEDEBUG
- //#define DC390_REMOVABLEDEBUG
- //#define DC390_LOCKDEBUG
- /* Debug definitions */
- #ifdef DC390_DEBUG0
- # define DEBUG0(x) x;
- #else
- # define DEBUG0(x)
- #endif
- #ifdef DC390_DEBUG1
- # define DEBUG1(x) x;
- #else
- # define DEBUG1(x)
- #endif
- #ifdef DC390_DCBDEBUG
- # define DCBDEBUG(x) x;
- #else
- # define DCBDEBUG(x)
- #endif
- #ifdef DC390_PARSEDEBUG
- # define PARSEDEBUG(x) x;
- #else
- # define PARSEDEBUG(x)
- #endif
- #ifdef DC390_REMOVABLEDEBUG
- # define REMOVABLEDEBUG(x) x;
- #else
- # define REMOVABLEDEBUG(x)
- #endif
- #define DCBDEBUG1(x)
- /* Includes */
- #include <linux/module.h>
- #include <asm/dma.h>
- #include <asm/io.h>
- #include <asm/system.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/ctype.h>
- #include <linux/mm.h>
- #include <linux/config.h>
- #include <linux/version.h>
- #include <linux/blk.h>
- #include <linux/timer.h>
- #include "scsi.h"
- #include "hosts.h"
- #include "constants.h"
- #include "sd.h"
- #include <linux/stat.h>
- #include <scsi/scsicam.h>
- #include "dc390.h"
- #define PCI_DEVICE_ID_AMD53C974 PCI_DEVICE_ID_AMD_SCSI
- /* Locking */
- /* Note: Starting from 2.1.9x, the mid-level scsi code issues a
- * spinlock_irqsave (&io_request_lock) before calling the driver's
- * routines, so we don't need to lock, except in the IRQ handler.
- * The policy 3, let the midlevel scsi code do the io_request_locks
- * and us locking on a driver specific lock, shouldn't hurt anybody; it
- * just causes a minor performance degradation for setting the locks.
- */
- /* spinlock things
- * level 3: lock on both adapter specific locks and (global) io_request_lock
- * level 2: lock on adapter specific locks only
- * level 1: rely on the locking of the mid level code (io_request_lock)
- * undef : traditional save_flags; cli; restore_flags;
- */
- //#define DEBUG_SPINLOCKS 2 /* Set to 0, 1 or 2 in include/linux/spinlock.h */
- #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,30)
- # include <linux/init.h>
- #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,30)
- # include <linux/spinlock.h>
- #else
- # include <asm/spinlock.h>
- #endif
- #endif
- #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,93)
- # define USE_SPINLOCKS 1
- # define NEW_PCI 1
- #else
- # undef NEW_PCI
- # if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,30)
- # define USE_SPINLOCKS 2
- # endif
- #endif
- #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,99)
- static struct pci_device_id tmscsim_pci_tbl[] __initdata = {
- {
- vendor: PCI_VENDOR_ID_AMD,
- device: PCI_DEVICE_ID_AMD53C974,
- subvendor: PCI_ANY_ID,
- subdevice: PCI_ANY_ID,
- },
- { } /* Terminating entry */
- };
- MODULE_DEVICE_TABLE(pci, tmscsim_pci_tbl);
- #endif
- #ifdef USE_SPINLOCKS
- # if USE_SPINLOCKS == 3 /* both */
- # if defined (CONFIG_SMP) || DEBUG_SPINLOCKS > 0
- # define DC390_LOCKA_INIT { spinlock_t __unlocked = SPIN_LOCK_UNLOCKED; pACB->lock = __unlocked; };
- # else
- # define DC390_LOCKA_INIT
- # endif
- spinlock_t dc390_drvlock = SPIN_LOCK_UNLOCKED;
- # define DC390_AFLAGS unsigned long aflags;
- # define DC390_IFLAGS unsigned long iflags;
- # define DC390_DFLAGS unsigned long dflags;
- # define DC390_LOCK_IO spin_lock_irqsave (&io_request_lock, iflags)
- # define DC390_UNLOCK_IO spin_unlock_irqrestore (&io_request_lock, iflags)
- # define DC390_LOCK_DRV spin_lock_irqsave (&dc390_drvlock, dflags)
- # define DC390_UNLOCK_DRV spin_unlock_irqrestore (&dc390_drvlock, dflags)
- # define DC390_LOCK_DRV_NI spin_lock (&dc390_drvlock)
- # define DC390_UNLOCK_DRV_NI spin_unlock (&dc390_drvlock)
- # define DC390_LOCK_ACB spin_lock_irqsave (&(pACB->lock), aflags)
- # define DC390_UNLOCK_ACB spin_unlock_irqrestore (&(pACB->lock), aflags)
- # define DC390_LOCK_ACB_NI spin_lock (&(pACB->lock))
- # define DC390_UNLOCK_ACB_NI spin_unlock (&(pACB->lock))
- //# define DC390_LOCKA_INIT spin_lock_init (&(pACB->lock))
- # else
- # if USE_SPINLOCKS == 2 /* adapter specific locks */
- # if defined (CONFIG_SMP) || DEBUG_SPINLOCKS > 0
- # define DC390_LOCKA_INIT { spinlock_t __unlocked = SPIN_LOCK_UNLOCKED; pACB->lock = __unlocked; };
- # else
- # define DC390_LOCKA_INIT
- # endif
- spinlock_t dc390_drvlock = SPIN_LOCK_UNLOCKED;
- # define DC390_AFLAGS unsigned long aflags;
- # define DC390_IFLAGS
- # define DC390_DFLAGS unsigned long dflags;
- # define DC390_LOCK_IO /* spin_lock_irqsave (&io_request_lock, iflags) */
- # define DC390_UNLOCK_IO /* spin_unlock_irqrestore (&io_request_lock, iflags) */
- # define DC390_LOCK_DRV spin_lock_irqsave (&dc390_drvlock, dflags)
- # define DC390_UNLOCK_DRV spin_unlock_irqrestore (&dc390_drvlock, dflags)
- # define DC390_LOCK_DRV_NI spin_lock (&dc390_drvlock)
- # define DC390_UNLOCK_DRV_NI spin_unlock (&dc390_drvlock)
- # define DC390_LOCK_ACB spin_lock_irqsave (&(pACB->lock), aflags)
- # define DC390_UNLOCK_ACB spin_unlock_irqrestore (&(pACB->lock), aflags)
- # define DC390_LOCK_ACB_NI spin_lock (&(pACB->lock))
- # define DC390_UNLOCK_ACB_NI spin_unlock (&(pACB->lock))
- //# define DC390_LOCKA_INIT spin_lock_init (&(pACB->lock))
- # else /* USE_SPINLOCKS == 1: global lock io_request_lock */
- # define DC390_AFLAGS
- # define DC390_IFLAGS unsigned long iflags;
- # define DC390_DFLAGS unsigned long dflags;
- spinlock_t dc390_drvlock = SPIN_LOCK_UNLOCKED;
- # define DC390_LOCK_IO spin_lock_irqsave (&io_request_lock, iflags)
- # define DC390_UNLOCK_IO spin_unlock_irqrestore (&io_request_lock, iflags)
- # define DC390_LOCK_DRV spin_lock_irqsave (&dc390_drvlock, dflags)
- # define DC390_UNLOCK_DRV spin_unlock_irqrestore (&dc390_drvlock, dflags)
- # define DC390_LOCK_DRV_NI spin_lock (&dc390_drvlock)
- # define DC390_UNLOCK_DRV_NI spin_unlock (&dc390_drvlock)
- # define DC390_LOCK_ACB /* DC390_LOCK_IO */
- # define DC390_UNLOCK_ACB /* DC390_UNLOCK_IO */
- # define DC390_LOCK_ACB_NI /* spin_lock (&(pACB->lock)) */
- # define DC390_UNLOCK_ACB_NI /* spin_unlock (&(pACB->lock)) */
- # define DC390_LOCKA_INIT /* DC390_LOCKA_INIT */
- # endif /* 2 */
- # endif /* 3 */
- #else /* USE_SPINLOCKS undefined */
- # define DC390_AFLAGS unsigned long aflags;
- # define DC390_IFLAGS unsigned long iflags;
- # define DC390_DFLAGS unsigned long dflags;
- # define DC390_LOCK_IO save_flags (iflags); cli ()
- # define DC390_UNLOCK_IO restore_flags (iflags)
- # define DC390_LOCK_DRV save_flags (dflags); cli ()
- # define DC390_UNLOCK_DRV restore_flags (dflags)
- # define DC390_LOCK_DRV_NI
- # define DC390_UNLOCK_DRV_NI
- # define DC390_LOCK_ACB save_flags (aflags); cli ()
- # define DC390_UNLOCK_ACB restore_flags (aflags)
- # define DC390_LOCK_ACB_NI
- # define DC390_UNLOCK_ACB_NI
- # define DC390_LOCKA_INIT
- #endif /* def */
- /* These macros are used for uniform access to 2.0.x and 2.1.x PCI config space*/
- #ifdef NEW_PCI
- # define PDEV pdev
- # define PDEVDECL struct pci_dev *pdev
- # define PDEVDECL0 struct pci_dev *pdev = NULL
- # define PDEVDECL1 struct pci_dev *pdev
- # define PDEVSET pACB->pdev=pdev
- # define PDEVSET1 pdev=pACB->pdev
- # define PCI_WRITE_CONFIG_BYTE(pd, rv, bv) pci_write_config_byte (pd, rv, bv)
- # define PCI_READ_CONFIG_BYTE(pd, rv, bv) pci_read_config_byte (pd, rv, bv)
- # define PCI_WRITE_CONFIG_WORD(pd, rv, bv) pci_write_config_word (pd, rv, bv)
- # define PCI_READ_CONFIG_WORD(pd, rv, bv) pci_read_config_word (pd, rv, bv)
- # define PCI_BUS_DEV pdev->bus->number, pdev->devfn
- # define PCI_PRESENT pci_present ()
- # define PCI_SET_MASTER pci_set_master (pdev)
- # define PCI_FIND_DEVICE(vend, id) (pdev = pci_find_device (vend, id, pdev))
- #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,10)
- # define PCI_GET_IO_AND_IRQ io_port = pci_resource_start (pdev, 0); irq = pdev->irq
- #else
- # define PCI_GET_IO_AND_IRQ io_port = pdev->base_address[0] & PCI_BASE_ADDRESS_IO_MASK; irq = pdev->irq
- #endif
- #else
- # include <linux/bios32.h>
- # define PDEV pbus, pdevfn
- # define PDEVDECL UCHAR pbus, UCHAR pdevfn
- # define PDEVDECL0 UCHAR pbus = 0; UCHAR pdevfn = 0; USHORT pci_index = 0; int error
- # define PDEVDECL1 UCHAR pbus; UCHAR pdevfn /*; USHORT pci_index */
- # define PDEVSET pACB->pbus=pbus; pACB->pdevfn=pdevfn /*; pACB->pci_index=pci_index */
- # define PDEVSET1 pbus=pACB->pbus; pdevfn=pACB->pdevfn /*; pci_index=pACB->pci_index */
- # define PCI_WRITE_CONFIG_BYTE(pd, rv, bv) pcibios_write_config_byte (pd, rv, bv)
- # define PCI_READ_CONFIG_BYTE(pd, rv, bv) pcibios_read_config_byte (pd, rv, bv)
- # define PCI_WRITE_CONFIG_WORD(pd, rv, bv) pcibios_write_config_word (pd, rv, bv)
- # define PCI_READ_CONFIG_WORD(pd, rv, bv) pcibios_read_config_word (pd, rv, bv)
- # define PCI_BUS_DEV pbus, pdevfn
- # define PCI_PRESENT pcibios_present ()
- # define PCI_SET_MASTER dc390_set_master (pbus, pdevfn)
- # define PCI_FIND_DEVICE(vend, id) (!pcibios_find_device (vend, id, pci_index++, &pbus, &pdevfn))
- # define PCI_GET_IO_AND_IRQ error = pcibios_read_config_dword (pbus, pdevfn, PCI_BASE_ADDRESS_0, &io_port);
- error |= pcibios_read_config_byte (pbus, pdevfn, PCI_INTERRUPT_LINE, &irq);
- io_port &= 0xfffe;
- if (error) { printk (KERN_ERR "DC390_detect: Error reading PCI config registers!n"); continue; }
- #endif
- #include "tmscsim.h"
- #ifndef __init
- # define __init
- #endif
- UCHAR dc390_StartSCSI( PACB pACB, PDCB pDCB, PSRB pSRB );
- void dc390_DataOut_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- void dc390_DataIn_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- static void dc390_Command_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- static void dc390_Status_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- static void dc390_MsgOut_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- void dc390_MsgIn_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- static void dc390_DataOutPhase( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- static void dc390_DataInPhase( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- void dc390_CommandPhase( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- static void dc390_StatusPhase( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- void dc390_MsgOutPhase( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- static void dc390_MsgInPhase( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- static void dc390_Nop_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- static void dc390_Nop_1( PACB pACB, PSRB pSRB, PUCHAR psstatus);
- static void dc390_SetXferRate( PACB pACB, PDCB pDCB );
- void dc390_Disconnect( PACB pACB );
- void dc390_Reselect( PACB pACB );
- void dc390_SRBdone( PACB pACB, PDCB pDCB, PSRB pSRB );
- void dc390_DoingSRB_Done( PACB pACB, PSCSICMD cmd );
- static void dc390_ScsiRstDetect( PACB pACB );
- static void dc390_ResetSCSIBus( PACB pACB );
- static void __inline__ dc390_RequestSense( PACB pACB, PDCB pDCB, PSRB pSRB );
- static void __inline__ dc390_InvalidCmd( PACB pACB );
- static void __inline__ dc390_EnableMsgOut_Abort (PACB, PSRB);
- static void dc390_remove_dev (PACB pACB, PDCB pDCB);
- void do_DC390_Interrupt( int, void *, struct pt_regs *);
- int dc390_initAdapter( PSH psh, ULONG io_port, UCHAR Irq, UCHAR index );
- void dc390_initDCB( PACB pACB, PDCB *ppDCB, UCHAR id, UCHAR lun);
- void dc390_updateDCB (PACB pACB, PDCB pDCB);
- #ifdef MODULE
- static int DC390_release(struct Scsi_Host *host);
- static int dc390_shutdown (struct Scsi_Host *host);
- #endif
- //static PSHT dc390_pSHT_start = NULL;
- //static PSH dc390_pSH_start = NULL;
- //static PSH dc390_pSH_current = NULL;
- static PACB dc390_pACB_start= NULL;
- static PACB dc390_pACB_current = NULL;
- static ULONG dc390_lastabortedpid = 0;
- static UINT dc390_laststatus = 0;
- static UCHAR dc390_adapterCnt = 0;
- /* Startup values, to be overriden on the commandline */
- int tmscsim[] = {-2, -2, -2, -2, -2, -2};
- # if defined(MODULE) && LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,30)
- MODULE_PARM(tmscsim, "1-6i");
- MODULE_PARM_DESC(tmscsim, "Host SCSI ID, Speed (0=10MHz), Device Flags, Adapter Flags, Max Tags (log2(tags)-1), DelayReset (s)");
- # endif
- #if defined(MODULE) && LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,30)
- 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");
- #endif
- static PVOID 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 PVOID 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
- /* Devices erroneously pretending to be able to do TagQ */
- UCHAR dc390_baddevname1[2][28] ={
- "SEAGATE ST3390N 9546",
- "HP C3323-300 4269"};
- #define BADDEVCNT 2
- static char* dc390_adapname = "DC390";
- UCHAR dc390_eepromBuf[MAX_ADAPTER_NUM][EE_LEN];
- UCHAR dc390_clock_period1[] = {4, 5, 6, 7, 8, 10, 13, 20};
- UCHAR dc390_clock_speed[] = {100,80,67,57,50, 40, 31, 20};
- #if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,30)
- struct proc_dir_entry DC390_proc_scsi_tmscsim ={
- PROC_SCSI_DC390T, 7 ,"tmscsim",
- S_IFDIR | S_IRUGO | S_IXUGO, 2
- };
- #endif
- /***********************************************************************
- * Functions for access to DC390 EEPROM
- * and some to emulate it
- *
- **********************************************************************/
- static void __init dc390_EnDisableCE( UCHAR mode, PDEVDECL, PUCHAR regval )
- {
- UCHAR bval;
- bval = 0;
- if(mode == ENABLE_CE)
- *regval = 0xc0;
- else
- *regval = 0x80;
- PCI_WRITE_CONFIG_BYTE(PDEV, *regval, bval);
- if(mode == DISABLE_CE)
- PCI_WRITE_CONFIG_BYTE(PDEV, *regval, bval);
- udelay(160);
- }
- /* Override EEprom values with explicitly set values */
- static void __init dc390_EEprom_Override (UCHAR index)
- {
- PUCHAR ptr;
- UCHAR id;
- ptr = (PUCHAR) dc390_eepromBuf[index];
- /* Adapter Settings */
- if (tmscsim[0] != -2)
- ptr[EE_ADAPT_SCSI_ID] = (UCHAR)tmscsim[0]; /* Adapter ID */
- if (tmscsim[3] != -2)
- ptr[EE_MODE2] = (UCHAR)tmscsim[3];
- if (tmscsim[5] != -2)
- ptr[EE_DELAY] = tmscsim[5]; /* Reset delay */
- if (tmscsim[4] != -2)
- ptr[EE_TAG_CMD_NUM] = (UCHAR)tmscsim[4]; /* Tagged Cmds */
- /* Device Settings */
- for (id = 0; id < MAX_SCSI_ID; id++)
- {
- if (tmscsim[2] != -2)
- ptr[id<<2] = (UCHAR)tmscsim[2]; /* EE_MODE1 */
- if (tmscsim[1] != -2)
- ptr[(id<<2) + 1] = (UCHAR)tmscsim[1]; /* EE_Speed */
- };
- }
- /* Handle "-1" case */
- static void __init dc390_check_for_safe_settings (void)
- {
- if (tmscsim[0] == -1 || tmscsim[0] > 15) /* modules-2.0.0 passes -1 as string */
- {
- tmscsim[0] = 7; tmscsim[1] = 4;
- tmscsim[2] = 0x09; tmscsim[3] = 0x0f;
- tmscsim[4] = 2; tmscsim[5] = 10;
- printk (KERN_INFO "DC390: Using safe settings.n");
- }
- }
- #ifndef CONFIG_SCSI_DC390T_NOGENSUPP
- int __initdata tmscsim_def[] = {7, 0 /* 10MHz */,
- PARITY_CHK_ | SEND_START_ | EN_DISCONNECT_
- | SYNC_NEGO_ | TAG_QUEUEING_,
- MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION
- /* | NO_SEEK */
- # ifdef CONFIG_SCSI_MULTI_LUN
- | LUN_CHECK
- # endif
- , 3 /* 16 Tags per LUN */, 1 /* s delay after Reset */ };
- /* Copy defaults over set values where missing */
- static void __init dc390_fill_with_defaults (void)
- {
- int i;
- PARSEDEBUG(printk(KERN_INFO "DC390: setup %08x %08x %08x %08x %08x %08xn", tmscsim[0],
- tmscsim[1], tmscsim[2], tmscsim[3], tmscsim[4], tmscsim[5]);)
- 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;
- };
- #endif
- /* Override defaults on cmdline:
- * tmscsim: AdaptID, MaxSpeed (Index), DevMode (Bitmapped), AdaptMode (Bitmapped)
- */
- #if LINUX_VERSION_CODE > KERNEL_VERSION(2,3,13)
- int __init dc390_setup (char *str)
- {
- int ints[8];
- int i, im;
- (void)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;
- };
- #ifndef MODULE
- __setup("tmscsim=", dc390_setup);
- #endif
- #else
- void __init dc390_setup (char *str, int *ints)
- {
- int i, im;
- 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 (); */
- };
- #endif
- static void __init dc390_EEpromOutDI( PDEVDECL, PUCHAR regval, UCHAR Carry )
- {
- UCHAR bval;
- bval = 0;
- if(Carry)
- {
- bval = 0x40;
- *regval = 0x80;
- PCI_WRITE_CONFIG_BYTE(PDEV, *regval, bval);
- }
- udelay(160);
- bval |= 0x80;
- PCI_WRITE_CONFIG_BYTE(PDEV, *regval, bval);
- udelay(160);
- bval = 0;
- PCI_WRITE_CONFIG_BYTE(PDEV, *regval, bval);
- udelay(160);
- }
- static UCHAR __init dc390_EEpromInDO( PDEVDECL )
- {
- UCHAR bval;
- 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)
- return(1);
- else
- return(0);
- }
- static USHORT __init dc390_EEpromGetData1( PDEVDECL )
- {
- UCHAR i;
- UCHAR carryFlag;
- USHORT wval;
- wval = 0;
- for(i=0; i<16; i++)
- {
- wval <<= 1;
- carryFlag = dc390_EEpromInDO(PDEV);
- wval |= carryFlag;
- }
- return(wval);
- }
- static void __init dc390_Prepare( PDEVDECL, PUCHAR regval, UCHAR EEpromCmd )
- {
- UCHAR i,j;
- UCHAR carryFlag;
- carryFlag = 1;
- j = 0x80;
- for(i=0; i<9; i++)
- {
- dc390_EEpromOutDI(PDEV,regval,carryFlag);
- carryFlag = (EEpromCmd & j) ? 1 : 0;
- j >>= 1;
- }
- }
- static void __init dc390_ReadEEprom( PDEVDECL, PUSHORT ptr)
- {
- UCHAR regval,cmd;
- UCHAR i;
- cmd = EEPROM_READ;
- for(i=0; i<0x40; i++)
- {
- dc390_EnDisableCE(ENABLE_CE, PDEV, ®val);
- dc390_Prepare(PDEV, ®val, cmd++);
- *ptr++ = dc390_EEpromGetData1(PDEV);
- dc390_EnDisableCE(DISABLE_CE, PDEV, ®val);
- }
- }
- static void __init dc390_interpret_delay (UCHAR index)
- {
- char interpd [] = {1,3,5,10,16,30,60,120};
- dc390_eepromBuf[index][EE_DELAY] = interpd [dc390_eepromBuf[index][EE_DELAY]];
- };
- static UCHAR __init dc390_CheckEEpromCheckSum( PDEVDECL, UCHAR index )
- {
- UCHAR i;
- char EEbuf[128];
- USHORT wval, *ptr = (PUSHORT)EEbuf;
- dc390_ReadEEprom( 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_interpret_delay (index);
- wval = 0;
- for(i=0; i<0x40; i++, ptr++)
- wval += *ptr;
- return (wval == 0x1234 ? 0 : 1);
- }
- /***********************************************************************
- * Functions for the management of the internal structures
- * (DCBs, SRBs, Queueing)
- *
- **********************************************************************/
- static PDCB __inline__ dc390_findDCB ( PACB pACB, UCHAR id, UCHAR lun)
- {
- PDCB pDCB = pACB->pLinkDCB; if (!pDCB) return 0;
- while (pDCB->TargetID != id || pDCB->TargetLUN != lun)
- {
- pDCB = pDCB->pNextDCB;
- if (pDCB == pACB->pLinkDCB)
- {
- DCBDEBUG(printk (KERN_WARNING "DC390: DCB not found (DCB=%p, DCBmap[%2x]=%2x)n",
- pDCB, id, pACB->DCBmap[id]);)
- return 0;
- }
- };
- DCBDEBUG1( printk (KERN_DEBUG "DCB %p (%02x,%02x) found.n",
- pDCB, pDCB->TargetID, pDCB->TargetLUN);)
- return pDCB;
- };
- /* Queueing philosphy:
- * There are a couple of lists:
- * - Query: Contains the Scsi Commands not yet turned into SRBs (per ACB)
- * (Note: For new EH, it is unnecessary!)
- * - Waiting: Contains a list of SRBs not yet sent (per DCB)
- * - Free: List of free SRB slots
- *
- * If there are no waiting commands for the DCB, the new one is sent to the bus
- * otherwise the oldest one is taken from the Waiting list and the new one is
- * queued to the Waiting List
- *
- * Lists are managed using two pointers and eventually a counter
- */
- #if 0
- /* Look for a SCSI cmd in a SRB queue */
- static PSRB dc390_find_cmd_in_SRBq (PSCSICMD cmd, PSRB queue)
- {
- PSRB q = queue;
- while (q)
- {
- if (q->pcmd == cmd) return q;
- q = q->pNextSRB;
- if (q == queue) return 0;
- }
- return q;
- };
- #endif
- /* Append to Query List */
- static void dc390_Query_append( PSCSICMD cmd, PACB pACB )
- {
- DEBUG0(printk ("DC390: Append cmd %li to Queryn", cmd->pid);)
- if( !pACB->QueryCnt )
- pACB->pQueryHead = cmd;
- else
- pACB->pQueryTail->next = cmd;
- pACB->pQueryTail = cmd;
- pACB->QueryCnt++;
- pACB->CmdOutOfSRB++;
- cmd->next = NULL;
- }
- /* Return next cmd from Query list */
- static PSCSICMD dc390_Query_get ( PACB pACB )
- {
- PSCSICMD pcmd;
- pcmd = pACB->pQueryHead;
- if (!pcmd) return pcmd;
- DEBUG0(printk ("DC390: Get cmd %li from Queryn", pcmd->pid);)
- pACB->pQueryHead = pcmd->next;
- pcmd->next = NULL;
- if (!pACB->pQueryHead) pACB->pQueryTail = NULL;
- pACB->QueryCnt--;
- return( pcmd );
- }
- /* Return next free SRB */
- static __inline__ PSRB dc390_Free_get ( PACB pACB )
- {
- PSRB pSRB;
- pSRB = pACB->pFreeSRB;
- DEBUG0(printk ("DC390: Get Free SRB %pn", pSRB);)
- if( pSRB )
- {
- pACB->pFreeSRB = pSRB->pNextSRB;
- pSRB->pNextSRB = NULL;
- }
- return( pSRB );
- }
- /* Insert SRB oin top of free list */
- static __inline__ void dc390_Free_insert (PACB pACB, PSRB pSRB)
- {
- DEBUG0(printk ("DC390: Free SRB %pn", pSRB);)
- pSRB->pNextSRB = pACB->pFreeSRB;
- pACB->pFreeSRB = pSRB;
- }
- /* Inserts a SRB to the top of the Waiting list */
- static __inline__ void dc390_Waiting_insert ( PDCB pDCB, PSRB pSRB )
- {
- DEBUG0(printk ("DC390: Insert pSRB %p cmd %li to Waitingn", pSRB, pSRB->pcmd->pid);)
- pSRB->pNextSRB = pDCB->pWaitingSRB;
- if (!pDCB->pWaitingSRB)
- pDCB->pWaitLast = pSRB;
- pDCB->pWaitingSRB = pSRB;
- pDCB->WaitSRBCnt++;
- }
- /* Queue SRB to waiting list */
- static __inline__ void dc390_Waiting_append ( PDCB pDCB, PSRB pSRB)
- {
- DEBUG0(printk ("DC390: Append pSRB %p cmd %li to Waitingn", pSRB, pSRB->pcmd->pid);)
- if( pDCB->pWaitingSRB )
- pDCB->pWaitLast->pNextSRB = pSRB;
- else
- pDCB->pWaitingSRB = pSRB;
- pDCB->pWaitLast = pSRB;
- pSRB->pNextSRB = NULL;
- pDCB->WaitSRBCnt++;
- pDCB->pDCBACB->CmdInQ++;
- }
- static __inline__ void dc390_Going_append (PDCB pDCB, PSRB pSRB)
- {
- pDCB->GoingSRBCnt++;
- DEBUG0(printk("DC390: Append SRB %p to Goingn", 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 (PDCB pDCB, PSRB pSRB)
- {
- DEBUG0(printk("DC390: Remove SRB %p from Goingn", pSRB);)
- if (pSRB == pDCB->pGoingSRB)
- pDCB->pGoingSRB = pSRB->pNextSRB;
- else
- {
- PSRB 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--;
- };
- /* Moves SRB from Going list to the top of Waiting list */
- static void dc390_Going_to_Waiting ( PDCB pDCB, PSRB pSRB )
- {
- DEBUG0(printk(KERN_INFO "DC390: Going_to_Waiting (SRB %p) pid = %lin", pSRB, pSRB->pcmd->pid);)
- /* Remove SRB from Going */
- dc390_Going_remove (pDCB, pSRB);
- /* Insert on top of Waiting */
- dc390_Waiting_insert (pDCB, pSRB);
- /* Tag Mask must be freed elsewhere ! (KG, 99/06/18) */
- }
- /* Moves first SRB from Waiting list to Going list */
- static __inline__ void dc390_Waiting_to_Going ( PDCB pDCB, PSRB pSRB )
- {
- /* Remove from waiting list */
- DEBUG0(printk("DC390: Remove SRB %p from head of Waitingn", pSRB);)
- pDCB->pWaitingSRB = pSRB->pNextSRB;
- if( !pDCB->pWaitingSRB ) pDCB->pWaitLast = NULL;
- pDCB->WaitSRBCnt--;
- dc390_Going_append (pDCB, pSRB);
- }
- /* 2.0 timer compatibility */
- #if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,30)
- static inline int timer_pending(struct timer_list * timer)
- {
- return timer->prev != NULL;
- }
- #define time_after(a,b) ((long)(b) - (long)(a) < 0)
- #define time_before(a,b) time_after(b,a)
- #endif
- void DC390_waiting_timed_out (unsigned long ptr);
- /* Sets the timer to wake us up */
- static void dc390_waiting_timer (PACB pACB, unsigned long to)
- {
- if (timer_pending (&pACB->Waiting_Timer)) return;
- init_timer (&pACB->Waiting_Timer);
- pACB->Waiting_Timer.function = DC390_waiting_timed_out;
- pACB->Waiting_Timer.data = (unsigned long)pACB;
- if (time_before (jiffies + to, pACB->pScsiHost->last_reset))
- pACB->Waiting_Timer.expires = pACB->pScsiHost->last_reset + 1;
- else
- pACB->Waiting_Timer.expires = jiffies + to + 1;
- add_timer (&pACB->Waiting_Timer);
- }
- /* Send the next command from the waiting list to the bus */
- static void dc390_Waiting_process ( PACB pACB )
- {
- PDCB ptr, ptr1;
- PSRB pSRB;
- if( (pACB->pActiveDCB) || (pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV) ) )
- return;
- if (timer_pending (&pACB->Waiting_Timer)) del_timer (&pACB->Waiting_Timer);
- ptr = pACB->pDCBRunRobin;
- if( !ptr )
- {
- ptr = pACB->pLinkDCB;
- pACB->pDCBRunRobin = ptr;
- }
- ptr1 = ptr;
- if (!ptr1) return;
- do
- {
- pACB->pDCBRunRobin = ptr1->pNextDCB;
- if( !( pSRB = ptr1->pWaitingSRB ) ||
- ( ptr1->MaxCommand <= ptr1->GoingSRBCnt ))
- ptr1 = ptr1->pNextDCB;
- else
- {
- /* Try to send to the bus */
- if( !dc390_StartSCSI(pACB, ptr1, pSRB) )
- dc390_Waiting_to_Going (ptr1, pSRB);
- else
- dc390_waiting_timer (pACB, HZ/5);
- break;
- }
- } while (ptr1 != ptr);
- return;
- }
- /* Wake up waiting queue */
- void DC390_waiting_timed_out (unsigned long ptr)
- {
- PACB pACB = (PACB)ptr;
- DC390_IFLAGS
- DC390_AFLAGS
- DEBUG0(printk ("DC390: Debug: Waiting queue woken up by timer!n");)
- DC390_LOCK_IO;
- DC390_LOCK_ACB;
- dc390_Waiting_process (pACB);
- DC390_UNLOCK_ACB;
- DC390_UNLOCK_IO;
- }
- /***********************************************************************
- * Function: static void dc390_SendSRB (PACB pACB, PSRB pSRB)
- *
- * Purpose: Send SCSI Request Block (pSRB) to adapter (pACB)
- *
- ***********************************************************************/
- static void dc390_SendSRB( PACB pACB, PSRB pSRB )
- {
- PDCB pDCB;
- pDCB = pSRB->pSRBDCB;
- if( (pDCB->MaxCommand <= pDCB->GoingSRBCnt) || (pACB->pActiveDCB) ||
- (pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV)) )
- {
- dc390_Waiting_append (pDCB, pSRB);
- dc390_Waiting_process (pACB);
- return;
- }
- #if 0
- if( pDCB->pWaitingSRB )
- {
- dc390_Waiting_append (pDCB, pSRB);
- /* pSRB = GetWaitingSRB(pDCB); */ /* non-existent */
- pSRB = pDCB->pWaitingSRB;
- /* Remove from waiting list */
- pDCB->pWaitingSRB = pSRB->pNextSRB;
- pSRB->pNextSRB = NULL;
- if (!pDCB->pWaitingSRB) pDCB->pWaitLast = NULL;
- }
- #endif
- if (!dc390_StartSCSI(pACB, pDCB, pSRB))
- dc390_Going_append (pDCB, pSRB);
- else {
- dc390_Waiting_insert (pDCB, pSRB);
- dc390_waiting_timer (pACB, HZ/5);
- };
- }
- /***********************************************************************
- * Function: static void dc390_BuildSRB (Scsi_Cmd *pcmd, PDCB pDCB,
- * PSRB pSRB)
- *
- * Purpose: Prepare SRB for being sent to Device DCB w/ command *pcmd
- *
- ***********************************************************************/
- static void dc390_BuildSRB (Scsi_Cmnd* pcmd, PDCB pDCB, PSRB pSRB)
- {
- pSRB->pSRBDCB = pDCB;
- pSRB->pcmd = pcmd;
- //pSRB->ScsiCmdLen = pcmd->cmd_len;
- //memcpy (pSRB->CmdBlock, pcmd->cmnd, pcmd->cmd_len);
- if( pcmd->use_sg )
- {
- pSRB->SGcount = (UCHAR) pcmd->use_sg;
- pSRB->pSegmentList = (PSGL) pcmd->request_buffer;
- }
- else if( pcmd->request_buffer )
- {
- pSRB->SGcount = 1;
- pSRB->pSegmentList = (PSGL) &pSRB->Segmentx;
- pSRB->Segmentx.address = (PUCHAR) pcmd->request_buffer;
- pSRB->Segmentx.length = pcmd->request_bufflen;
- }
- else
- pSRB->SGcount = 0;
- pSRB->SGIndex = 0;
- pSRB->AdaptStatus = 0;
- pSRB->TargetStatus = 0;
- pSRB->MsgCnt = 0;
- if( pDCB->DevType != TYPE_TAPE )
- pSRB->RetryCnt = 1;
- else
- pSRB->RetryCnt = 0;
- pSRB->SRBStatus = 0;
- pSRB->SRBFlag = 0;
- pSRB->SRBState = 0;
- pSRB->TotalXferredLen = 0;
- pSRB->SGBusAddr = 0;
- pSRB->SGToBeXferLen = 0;
- pSRB->ScsiPhase = 0;
- pSRB->EndMessage = 0;
- pSRB->TagNumber = 255;
- };
- /* Put cmnd from Query to Waiting list and send next Waiting cmnd */
- static void dc390_Query_to_Waiting (PACB pACB)
- {
- Scsi_Cmnd *pcmd;
- PSRB pSRB;
- PDCB pDCB;
- if( pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV) )
- return;
- while (pACB->QueryCnt)
- {
- pSRB = dc390_Free_get ( pACB );
- if (!pSRB) return;
- pcmd = dc390_Query_get ( pACB );
- if (!pcmd) { dc390_Free_insert (pACB, pSRB); return; }; /* should not happen */
- pDCB = dc390_findDCB (pACB, pcmd->target, pcmd->lun);
- if (!pDCB)
- {
- dc390_Free_insert (pACB, pSRB);
- printk (KERN_ERR "DC390: Command in queue to non-existing device!n");
- pcmd->result = MK_RES(DRIVER_ERROR,DID_ERROR,0,0);
- DC390_UNLOCK_ACB_NI;
- pcmd->done (pcmd);
- DC390_LOCK_ACB_NI;
- };
- dc390_BuildSRB (pcmd, pDCB, pSRB);
- dc390_Waiting_append ( pDCB, pSRB );
- }
- }
- /***********************************************************************
- * Function : static int DC390_queue_command (Scsi_Cmnd *cmd,
- * void (*done)(Scsi_Cmnd *))
- *
- * Purpose : enqueues a SCSI command
- *
- * Inputs : cmd - SCSI command, done - callback function called on
- * completion, with a pointer to the command descriptor.
- *
- * Returns : (depending on kernel version)
- * 2.0.x: always return 0
- * 2.1.x: old model: (use_new_eh_code == 0): like 2.0.x
- * TO BE DONE:
- * new model: return 0 if successful
- * return 1 if command cannot be queued (queue full)
- * command will be inserted in midlevel queue then ...
- *
- ***********************************************************************/
- int DC390_queue_command (Scsi_Cmnd *cmd, void (* done)(Scsi_Cmnd *))
- {
- PDCB pDCB;
- PSRB pSRB;
- DC390_AFLAGS
- PACB pACB = (PACB) cmd->host->hostdata;
- DEBUG0(/* if(pACB->scan_devices) */
- printk(KERN_INFO "DC390: Queue Cmd=%02x,Tgt=%d,LUN=%d (pid=%li)n",
- cmd->cmnd[0],cmd->target,cmd->lun,cmd->pid);)
- DC390_LOCK_ACB;
- /* Assume BAD_TARGET; will be cleared later */
- cmd->result = DID_BAD_TARGET << 16;
- /* TODO: Change the policy: Alway accept TEST_UNIT_READY or INQUIRY
- * commands and alloc a DCB for the device if not yet there. DCB will
- * be removed in dc390_SRBdone if SEL_TIMEOUT */
- if( (pACB->scan_devices == END_SCAN) && (cmd->cmnd[0] != INQUIRY) )
- pACB->scan_devices = 0;
- else if( (pACB->scan_devices) && (cmd->cmnd[0] == READ_6) )
- pACB->scan_devices = 0;
- if ( ( cmd->target >= pACB->pScsiHost->max_id ) ||
- (cmd->lun >= pACB->pScsiHost->max_lun) )
- {
- /* printk ("DC390: Ignore target %d lun %dn",
- cmd->target, cmd->lun); */
- DC390_UNLOCK_ACB;
- //return (1);
- done (cmd);
- return (0);
- }
- if( (pACB->scan_devices || cmd->cmnd[0] == TEST_UNIT_READY || cmd->cmnd[0] == INQUIRY) &&
- !(pACB->DCBmap[cmd->target] & (1 << cmd->lun)) )
- {
- pACB->scan_devices = 1;
- dc390_initDCB( pACB, &pDCB, cmd->target, cmd->lun );
- if (!pDCB)
- {
- printk (KERN_ERR "DC390: kmalloc for DCB failed, target %02x lun %02xn",
- cmd->target, cmd->lun);
- DC390_UNLOCK_ACB;
- printk ("DC390: No DCB in queue_command!n");
- #ifdef USE_NEW_EH
- return (1);
- #else
- done (cmd);
- return (0);
- #endif
- };
- }
- else if( !(pACB->scan_devices) && !(pACB->DCBmap[cmd->target] & (1 << cmd->lun)) )
- {
- printk(KERN_INFO "DC390: Ignore target %02x lun %02xn",
- cmd->target, cmd->lun);
- DC390_UNLOCK_ACB;
- //return (1);
- done (cmd);
- return (0);
- }
- else
- {
- pDCB = dc390_findDCB (pACB, cmd->target, cmd->lun);
- if (!pDCB)
- { /* should never happen */
- printk (KERN_ERR "DC390: no DCB failed, target %02x lun %02xn",
- cmd->target, cmd->lun);
- DC390_UNLOCK_ACB;
- printk ("DC390: No DCB in queuecommand (2)!n");
- #ifdef USE_NEW_EH
- return (1);
- #else
- done (cmd);
- return (0);
- #endif
- };
- }
- pACB->Cmds++;
- cmd->scsi_done = done;
- cmd->result = 0;
- dc390_Query_to_Waiting (pACB);
- if( pACB->QueryCnt ) /* Unsent commands ? */
- {
- DEBUG0(printk ("DC390: QueryCnt != 0n");)
- dc390_Query_append ( cmd, pACB );
- dc390_Waiting_process (pACB);
- }
- else if (pDCB->pWaitingSRB)
- {
- pSRB = dc390_Free_get ( pACB );
- DEBUG0(if (!pSRB) printk ("DC390: No free SRB but Waitingn"); else printk ("DC390: Free SRB w/ Waitingn");)
- if (!pSRB) dc390_Query_append (cmd, pACB);
- else
- {
- dc390_BuildSRB (cmd, pDCB, pSRB);
- dc390_Waiting_append (pDCB, pSRB);
- }
- dc390_Waiting_process (pACB);
- }
- else
- {
- pSRB = dc390_Free_get ( pACB );
- DEBUG0(if (!pSRB) printk ("DC390: No free SRB w/o Waitingn"); else printk ("DC390: Free SRB w/o Waitingn");)
- if (!pSRB)
- {
- dc390_Query_append (cmd, pACB);
- dc390_Waiting_process (pACB);
- }
- else
- {
- dc390_BuildSRB (cmd, pDCB, pSRB);
- dc390_SendSRB (pACB, pSRB);
- };
- };
- DC390_UNLOCK_ACB;
- DEBUG1(printk (KERN_DEBUG " ... command (pid %li) queued successfully.n", cmd->pid);)
- return(0);
- }
- /* We ignore mapping problems, as we expect everybody to respect
- * valid partition tables. Waiting for complaints ;-) */
- #ifdef CONFIG_SCSI_DC390T_TRADMAP
- /*
- * The next function, partsize(), is copied from scsicam.c.
- *
- * This is ugly code duplication, but I didn't find another way to solve it:
- * We want to respect the partition table and if it fails, we apply the
- * DC390 BIOS heuristic. Too bad, just calling scsicam_bios_param() doesn't do
- * the job, because we don't know, whether the values returned are from
- * the part. table or determined by setsize(). Unfortunately the setsize()
- * values differ from the ones chosen by the DC390 BIOS.
- *
- * Looking forward to seeing suggestions for a better solution! KG, 98/10/14
- */
- #include <asm/unaligned.h>
- /*
- * Function : static int partsize(struct buffer_head *bh, unsigned long
- * capacity,unsigned int *cyls, unsigned int *hds, unsigned int *secs);
- *
- * Purpose : to determine the BIOS mapping used to create the partition
- * table, storing the results in *cyls, *hds, and *secs
- *
- * Returns : -1 on failure, 0 on success.
- *
- */
- static int partsize(struct buffer_head *bh, unsigned long capacity,
- unsigned int *cyls, unsigned int *hds, unsigned int *secs) {
- struct partition *p, *largest = NULL;
- int i, largest_cyl;
- int cyl, ext_cyl, end_head, end_cyl, end_sector;
- unsigned int logical_end, physical_end, ext_physical_end;
- if (*(unsigned short *) (bh->b_data+510) == 0xAA55) {
- for (largest_cyl = -1, p = (struct partition *)
- (0x1BE + bh->b_data), i = 0; i < 4; ++i, ++p) {
- if (!p->sys_ind)
- continue;
- cyl = p->cyl + ((p->sector & 0xc0) << 2);
- if (cyl > largest_cyl) {
- largest_cyl = cyl;
- largest = p;
- }
- }
- }
- if (largest) {
- end_cyl = largest->end_cyl + ((largest->end_sector & 0xc0) << 2);
- end_head = largest->end_head;
- end_sector = largest->end_sector & 0x3f;
- physical_end = end_cyl * (end_head + 1) * end_sector +
- end_head * end_sector + end_sector;
- /* This is the actual _sector_ number at the end */
- logical_end = get_unaligned(&largest->start_sect)
- + get_unaligned(&largest->nr_sects);
- /* This is for >1023 cylinders */
- ext_cyl= (logical_end-(end_head * end_sector + end_sector))
- /(end_head + 1) / end_sector;
- ext_physical_end = ext_cyl * (end_head + 1) * end_sector +
- end_head * end_sector + end_sector;
- if ((logical_end == physical_end) ||
- (end_cyl==1023 && ext_physical_end==logical_end)) {
- *secs = end_sector;
- *hds = end_head + 1;
- *cyls = capacity / ((end_head + 1) * end_sector);
- return 0;
- }
- }
- return -1;
- }
- /***********************************************************************
- * Function:
- * DC390_bios_param
- *
- * Description:
- * Return the disk geometry for the given SCSI device.
- * Respect the partition table, otherwise try own heuristic
- *
- * Note:
- * In contrary to other externally callable funcs (DC390_), we don't lock
- ***********************************************************************/
- int DC390_bios_param (Disk *disk, kdev_t devno, int geom[])
- {
- int heads, sectors, cylinders;
- PACB pACB = (PACB) disk->device->host->hostdata;
- struct buffer_head *bh;
- int ret_code = -1;
- int size = disk->capacity;
- if ((bh = bread(MKDEV(MAJOR(devno), MINOR(devno)&~0xf), 0, block_size(devno))))
- {
- /* try to infer mapping from partition table */
- ret_code = partsize (bh, (unsigned long) size, (unsigned int *) geom + 2,
- (unsigned int *) geom + 0, (unsigned int *) geom + 1);
- brelse (bh);
- }
- if (ret_code == -1)
- {
- heads = 64;
- sectors = 32;
- cylinders = size / (heads * sectors);
- if ( (pACB->Gmode2 & GREATER_1G) && (cylinders > 1024) )
- {
- heads = 255;
- sectors = 63;
- cylinders = size / (heads * sectors);
- }
- geom[0] = heads;
- geom[1] = sectors;
- geom[2] = cylinders;
- }
- return (0);
- }
- #else
- int DC390_bios_param (Disk *disk, kdev_t devno, int geom[])
- {
- return scsicam_bios_param (disk, devno, geom);
- };
- #endif
- void dc390_dumpinfo (PACB pACB, PDCB pDCB, PSRB pSRB)
- {
- USHORT pstat; PDEVDECL1;
- if (!pDCB) pDCB = pACB->pActiveDCB;
- if (!pSRB && pDCB) pSRB = pDCB->pActiveSRB;
- if (pSRB)
- {
- printk ("DC390: SRB: Xferred %08lx, Remain %08lx, State %08x, Phase %02xn",
- pSRB->TotalXferredLen, pSRB->SGToBeXferLen, pSRB->SRBState,
- pSRB->ScsiPhase);
- printk ("DC390: AdpaterStatus: %02x, SRB Status %02xn", pSRB->AdaptStatus, pSRB->SRBStatus);
- };
- printk ("DC390: Status of last IRQ (DMA/SC/Int/IRQ): %08xn", dc390_laststatus);
- printk ("DC390: Register dump: SCSI block:n");
- printk ("DC390: XferCnt Cmd Stat IntS IRQS FFIS Ctl1 Ctl2 Ctl3 Ctl4n");
- 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 %02xn",
- 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 SBusCtrln");
- printk ("DC390: %02x %08x %08x %08x %08x %02x %08xn",
- 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);
- PDEVSET1; PCI_READ_CONFIG_WORD(PDEV, PCI_STATUS, &pstat);
- printk ("DC390: Register dump: PCI Status: %04xn", pstat);
- printk ("DC390: In case of driver trouble read linux/drivers/scsi/README.tmscsimn");
- };
- /***********************************************************************
- * Function : int DC390_abort (Scsi_Cmnd *cmd)
- *
- * Purpose : Abort an errant SCSI command
- *
- * Inputs : cmd - command to abort
- *
- * Returns : 0 on success, -1 on failure.
- *
- * Status: Buggy !
- ***********************************************************************/
- int DC390_abort (Scsi_Cmnd *cmd)
- {
- PDCB pDCB;
- PSRB pSRB, psrb;
- UINT count, i;
- PSCSICMD pcmd;
- int status;
- //ULONG sbac;
- DC390_AFLAGS
- PACB pACB = (PACB) cmd->host->hostdata;
- DC390_LOCK_ACB;
- printk ("DC390: Abort command (pid %li, Device %02i-%02i)n",
- cmd->pid, cmd->target, cmd->lun);
- /* First scan Query list */
- if( pACB->QueryCnt )
- {
- pcmd = pACB->pQueryHead;
- if( pcmd == cmd )
- {
- /* Found: Dequeue */
- pACB->pQueryHead = pcmd->next;
- pcmd->next = NULL;
- if (cmd == pACB->pQueryTail) pACB->pQueryTail = NULL;
- pACB->QueryCnt--;
- status = SCSI_ABORT_SUCCESS;
- goto ABO_X;
- }
- for( count = pACB->QueryCnt, i=0; i<count-1; i++)
- {
- if( pcmd->next == cmd )
- {
- pcmd->next = cmd->next;
- cmd->next = NULL;
- if (cmd == pACB->pQueryTail) pACB->pQueryTail = NULL;
- pACB->QueryCnt--;
- status = SCSI_ABORT_SUCCESS;
- goto ABO_X;
- }
- else
- {
- pcmd = pcmd->next;
- }
- }
- }
- pDCB = dc390_findDCB (pACB, cmd->target, cmd->lun);
- if( !pDCB ) goto NOT_RUN;
- /* Added 98/07/02 KG */
- /*
- pSRB = pDCB->pActiveSRB;
- if (pSRB && pSRB->pcmd == cmd )
- goto ON_GOING;
- */
- pSRB = pDCB->pWaitingSRB;
- if( !pSRB )
- goto ON_GOING;
- /* Now scan Waiting queue */
- if( pSRB->pcmd == cmd )
- {
- pDCB->pWaitingSRB = pSRB->pNextSRB;
- goto IN_WAIT;
- }
- else
- {
- psrb = pSRB;
- if( !(psrb->pNextSRB) )
- goto ON_GOING;
- while( psrb->pNextSRB->pcmd != cmd )
- {
- psrb = psrb->pNextSRB;
- if( !(psrb->pNextSRB) || psrb == pSRB)
- goto ON_GOING;
- }
- pSRB = psrb->pNextSRB;
- psrb->pNextSRB = pSRB->pNextSRB;
- if( pSRB == pDCB->pWaitLast )
- pDCB->pWaitLast = psrb;
- IN_WAIT:
- dc390_Free_insert (pACB, pSRB);
- pDCB->WaitSRBCnt--;
- cmd->next = NULL;
- status = SCSI_ABORT_SUCCESS;
- goto ABO_X;
- }
- /* SRB has already been sent ! */
- ON_GOING:
- /* 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, pSRB);
- pSRB = pDCB->pGoingSRB;
- pDCB->DCBFlag |= ABORT_DEV_;
- /* Now for the hard part: The command is currently processed */
- for( count = pDCB->GoingSRBCnt, i=0; i<count; i++)
- {
- if( pSRB->pcmd != cmd )
- pSRB = pSRB->pNextSRB;
- else
- {
- if( (pACB->pActiveDCB == pDCB) && (pDCB->pActiveSRB == pSRB) )
- {
- status = SCSI_ABORT_BUSY;
- printk ("DC390: Abort current command (pid %li, SRB %p)n",
- cmd->pid, pSRB);
- goto ABO_X;
- }
- else
- {
- status = SCSI_ABORT_SNOOZE;
- goto ABO_X;
- }
- }
- }
- NOT_RUN:
- status = SCSI_ABORT_NOT_RUNNING;
- ABO_X:
- cmd->result = DID_ABORT << 16;
- printk(KERN_INFO "DC390: Aborted pid %li with status %in", cmd->pid, status);
- #if 0
- if (cmd->pid == dc390_lastabortedpid) /* repeated failure ? */
- {
- /* Let's do something to help the bus getting clean again */
- DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
- DC390_write8 (ScsiCmd, DMA_COMMAND);
- //DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
- //DC390_write8 (ScsiCmd, RESET_ATN_CMD);
- DC390_write8 (ScsiCmd, NOP_CMD);
- //udelay (10000);
- //DC390_read8 (INT_Status);
- //DC390_write8 (ScsiCmd, EN_SEL_RESEL);
- };
- sbac = DC390_read32 (DMA_ScsiBusCtrl);
- if (sbac & SCSI_BUSY)
- { /* clear BSY, SEL and ATN */
- printk (KERN_WARNING "DC390: Reset SCSI device: ");
- //DC390_write32 (DMA_ScsiBusCtrl, (sbac | SCAM) & ~SCSI_LINES);
- //udelay (250);
- //sbac = DC390_read32 (DMA_ScsiBusCtrl);
- //printk ("%08lx ", sbac);
- //DC390_write32 (DMA_ScsiBusCtrl, sbac & ~(SCSI_LINES | SCAM));
- //udelay (100);
- //sbac = DC390_read32 (DMA_ScsiBusCtrl);
- //printk ("%08lx ", sbac);
- DC390_write8 (ScsiCmd, RST_DEVICE_CMD);
- udelay (250);
- DC390_write8 (ScsiCmd, NOP_CMD);
- sbac = DC390_read32 (DMA_ScsiBusCtrl);
- printk ("%08lxn", sbac);
- };
- #endif
- dc390_lastabortedpid = cmd->pid;
- DC390_UNLOCK_ACB;
- //do_DC390_Interrupt (pACB->IRQLevel, 0, 0);
- #ifndef USE_NEW_EH
- if (status == SCSI_ABORT_SUCCESS) cmd->scsi_done(cmd);
- #endif
- return( status );
- }
- static void dc390_ResetDevParam( PACB pACB )
- {
- PDCB 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);
- }
- #if 0
- /* Moves all SRBs from Going to Waiting for all DCBs */
- static void dc390_RecoverSRB( PACB pACB )
- {
- PDCB pDCB, pdcb;
- PSRB psrb, psrb2;
- UINT cnt, i;
- pDCB = pACB->pLinkDCB;
- if( !pDCB ) return;
- pdcb = pDCB;
- do
- {
- cnt = pdcb->GoingSRBCnt;
- psrb = pdcb->pGoingSRB;
- for (i=0; i<cnt; i++)
- {
- psrb2 = psrb;
- psrb = psrb->pNextSRB;
- /* dc390_RewaitSRB( pDCB, psrb ); */
- if( pdcb->pWaitingSRB )
- {
- psrb2->pNextSRB = pdcb->pWaitingSRB;
- pdcb->pWaitingSRB = psrb2;
- }
- else
- {
- pdcb->pWaitingSRB = psrb2;
- pdcb->pWaitLast = psrb2;
- psrb2->pNextSRB = NULL;
- }
- }
- pdcb->GoingSRBCnt = 0;
- pdcb->pGoingSRB = NULL;
- pdcb->TagMask = 0;
- pdcb = pdcb->pNextDCB;
- } while( pdcb != pDCB );
- }
- #endif
- /***********************************************************************
- * Function : int DC390_reset (Scsi_Cmnd *cmd, ...)
- *
- * Purpose : perform a hard reset on the SCSI bus
- *
- * Inputs : cmd - command which caused the SCSI RESET
- * resetFlags - how hard to try
- *
- * Returns : 0 on success.
- ***********************************************************************/
- int DC390_reset (Scsi_Cmnd *cmd, unsigned int resetFlags)
- {
- UCHAR bval;
- DC390_AFLAGS
- PACB pACB = (PACB) cmd->host->hostdata;
- printk(KERN_INFO "DC390: RESET ... ");
- DC390_LOCK_ACB;
- if (timer_pending (&pACB->Waiting_Timer)) del_timer (&pACB->Waiting_Timer);
- bval = DC390_read8 (CtrlReg1);
- bval |= DIS_INT_ON_SCSI_RST;
- DC390_write8 (CtrlReg1, bval); /* disable IRQ on bus reset */
- pACB->ACBFlag |= RESET_DEV;
- dc390_ResetSCSIBus( pACB );
- dc390_ResetDevParam( pACB );
- udelay (1000);
- 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 );
- /* dc390_RecoverSRB (pACB); */
- pACB->pActiveDCB = NULL;
- pACB->ACBFlag = 0;
- bval = DC390_read8 (CtrlReg1);
- bval &= ~DIS_INT_ON_SCSI_RST;
- DC390_write8 (CtrlReg1, bval); /* re-enable interrupt */
- dc390_Waiting_process( pACB );
- printk("donen");
- DC390_UNLOCK_ACB;
- return( SCSI_RESET_SUCCESS );
- }
- #include "scsiiom.c"
- /***********************************************************************
- * Function : static void dc390_initDCB()
- *
- * Purpose : initialize the internal structures for a DCB (to be malloced)
- *
- * Inputs : SCSI id and lun
- ***********************************************************************/
- void dc390_initDCB( PACB pACB, PDCB *ppDCB, UCHAR id, UCHAR lun )
- {
- PEEprom prom;
- UCHAR index;
- PDCB pDCB, pDCB2;
- pDCB = kmalloc (sizeof(DC390_DCB), GFP_ATOMIC);
- DCBDEBUG(printk (KERN_INFO "DC390: alloc mem for DCB (ID %i, LUN %i): %pn"
- id, lun, pDCB);)
- *ppDCB = pDCB; pDCB2 = 0;
- if (!pDCB) return;
- if( pACB->DCBCnt == 0 )
- {
- pACB->pLinkDCB = pDCB;
- pACB->pDCBRunRobin = pDCB;
- }
- else
- {
- pACB->pLastDCB->pNextDCB = pDCB;
- };
- pACB->DCBCnt++;
- pDCB->pNextDCB = pACB->pLinkDCB;
- pACB->pLastDCB = pDCB;
- pDCB->pDCBACB = pACB;
- pDCB->TargetID = id;
- pDCB->TargetLUN = lun;
- pDCB->pWaitingSRB = NULL;
- pDCB->pGoingSRB = NULL;
- pDCB->GoingSRBCnt = 0;
- pDCB->WaitSRBCnt = 0;
- pDCB->pActiveSRB = NULL;
- pDCB->TagMask = 0;
- pDCB->MaxCommand = 1;
- index = pACB->AdapterIndex;
- pDCB->DCBFlag = 0;
- /* Is there a corresp. LUN==0 device ? */
- if (lun != 0)
- pDCB2 = dc390_findDCB (pACB, id, 0);
- prom = (PEEprom) &dc390_eepromBuf[index][id << 2];
- /* Some values are for all LUNs: Copy them */
- /* In a clean way: We would have an own structure for a SCSI-ID */
- if (pDCB2)
- {
- pDCB->DevMode = pDCB2->DevMode;
- pDCB->SyncMode = pDCB2->SyncMode;
- pDCB->SyncPeriod = pDCB2->SyncPeriod;
- pDCB->SyncOffset = pDCB2->SyncOffset;
- pDCB->NegoPeriod = pDCB2->NegoPeriod;
- pDCB->CtrlR3 = pDCB2->CtrlR3;
- pDCB->CtrlR4 = pDCB2->CtrlR4;
- pDCB->Inquiry7 = pDCB2->Inquiry7;
- }
- else
- {
- pDCB->DevMode = prom->EE_MODE1;
- pDCB->SyncMode = 0;
- pDCB->SyncPeriod = 0;
- pDCB->SyncOffset = 0;
- 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;
- pDCB->Inquiry7 = 0;
- }
- pACB->DCBmap[id] |= (1 << lun);
- dc390_updateDCB(pACB, pDCB);
- }
- /***********************************************************************
- * Function : static void dc390_updateDCB()
- *
- * Purpose : Set the configuration dependent DCB parameters
- ***********************************************************************/
- void dc390_updateDCB (PACB pACB, PDCB pDCB)
- {
- pDCB->SyncMode &= EN_TAG_QUEUEING | SYNC_NEGO_DONE /*| EN_ATN_STOP*/;
- if (pDCB->DevMode & TAG_QUEUEING_) {
- //if (pDCB->SyncMode & EN_TAG_QUEUEING) pDCB->MaxCommand = pACB->TagMaxNum;
- } else {
- pDCB->SyncMode &= ~EN_TAG_QUEUEING;
- pDCB->MaxCommand = 1;
- };
- if( pDCB->DevMode & SYNC_NEGO_ )
- pDCB->SyncMode |= SYNC_ENABLE;
- else {
- pDCB->SyncMode &= ~(SYNC_NEGO_DONE | SYNC_ENABLE);
- pDCB->SyncOffset &= ~0x0f;
- };
- //if (! (pDCB->DevMode & EN_DISCONNECT_)) pDCB->SyncMode &= ~EN_ATN_STOP;
- pDCB->CtrlR1 = pACB->pScsiHost->this_id;
- if( pDCB->DevMode & PARITY_CHK_ )
- pDCB->CtrlR1 |= PARITY_ERR_REPO;
- };
- /***********************************************************************
- * Function : static void dc390_updateDCBs ()
- *
- * Purpose : Set the configuration dependent DCB params for all DCBs
- ***********************************************************************/
- static void dc390_updateDCBs (PACB pACB)
- {
- int i;
- PDCB pDCB = pACB->pLinkDCB;
- for (i = 0; i < pACB->DCBCnt; i++)
- {
- dc390_updateDCB (pACB, pDCB);
- pDCB = pDCB->pNextDCB;
- };
- };
- /***********************************************************************
- * Function : static void dc390_initSRB()
- *
- * Purpose : initialize the internal structures for a given SRB
- *
- * Inputs : psrb - pointer to this scsi request block structure
- ***********************************************************************/
- static void __inline__ dc390_initSRB( PSRB psrb )
- {
- /* psrb->PhysSRB = virt_to_phys( psrb ); */
- }
- void dc390_linkSRB( PACB pACB )
- {
- UINT count, i;
- count = pACB->SRBCount;
- for( i=0; i<count; i++)
- {
- if( i != count-1 )
- pACB->SRB_array[i].pNextSRB = &pACB->SRB_array[i+1];
- else
- pACB->SRB_array[i].pNextSRB = NULL;
- dc390_initSRB( &pACB->SRB_array[i] );
- }
- }
- /***********************************************************************
- * Function : static void dc390_initACB ()
- *
- * Purpose : initialize the internal structures for a given SCSI host
- *
- * Inputs : psh - pointer to this host adapter's structure
- * io_port, Irq, index: Resources and adapter index
- ***********************************************************************/
- void __init dc390_initACB (PSH psh, ULONG io_port, UCHAR Irq, UCHAR index)
- {
- PACB pACB;
- UCHAR i;
- DC390_AFLAGS
- psh->can_queue = MAX_CMD_QUEUE;
- psh->cmd_per_lun = MAX_CMD_PER_LUN;
- psh->this_id = (int) dc390_eepromBuf[index][EE_ADAPT_SCSI_ID];
- psh->io_port = io_port;
- psh->n_io_port = 0x80;
- psh->irq = Irq;
- #if LINUX_VERSION_CODE > KERNEL_VERSION(2,3,50)
- psh->base = io_port;
- #else
- psh->base = (char*)io_port;
- #endif
- psh->unique_id = io_port;
- psh->dma_channel = -1;
- psh->last_reset = jiffies;
- pACB = (PACB) psh->hostdata;
- DC390_LOCKA_INIT;
- DC390_LOCK_ACB;
- pACB->pScsiHost = psh;
- pACB->IOPortBase = (USHORT) io_port;
- pACB->IRQLevel = Irq;
- DEBUG0(printk (KERN_INFO "DC390: Adapter index %i, ID %i, IO 0x%08x, IRQ 0x%02xn",
- index, psh->this_id, (int)io_port, Irq);)
- psh->max_id = 8;
- if( psh->max_id - 1 == dc390_eepromBuf[index][EE_ADAPT_SCSI_ID] )
- psh->max_id--;
- psh->max_lun = 1;
- if( dc390_eepromBuf[index][EE_MODE2] & LUN_CHECK )
- psh->max_lun = 8;
- pACB->pLinkDCB = NULL;
- pACB->pDCBRunRobin = NULL;
- pACB->pActiveDCB = NULL;
- pACB->pFreeSRB = pACB->SRB_array;
- pACB->SRBCount = MAX_SRB_CNT;
- pACB->QueryCnt = 0;
- pACB->pQueryHead = NULL;
- pACB->AdapterIndex = index;
- pACB->status = 0;
- psh->this_id = dc390_eepromBuf[index][EE_ADAPT_SCSI_ID];
- pACB->DeviceCnt = 0;
- pACB->DCBCnt = 0;
- pACB->TagMaxNum = 2 << dc390_eepromBuf[index][EE_TAG_CMD_NUM];
- pACB->ACBFlag = 0;
- pACB->scan_devices = 1;
- pACB->MsgLen = 0;
- pACB->Ignore_IRQ = 0;
- pACB->Gmode2 = dc390_eepromBuf[index][EE_MODE2];
- dc390_linkSRB( pACB );
- pACB->pTmpSRB = &pACB->TmpSRB;
- dc390_initSRB( pACB->pTmpSRB );
- for(i=0; i<MAX_SCSI_ID; i++)
- pACB->DCBmap[i] = 0;
- pACB->sel_timeout = SEL_TIMEOUT;
- pACB->glitch_cfg = EATER_25NS;
- pACB->Cmds = pACB->CmdInQ = pACB->CmdOutOfSRB = 0;
- pACB->SelLost = pACB->SelConn = 0;
- init_timer (&pACB->Waiting_Timer);
- }
- /***********************************************************************
- * Function : static int dc390_initAdapter ()
- *
- * Purpose : initialize the SCSI chip ctrl registers
- *
- * Inputs : psh - pointer to this host adapter's structure
- * io_port, Irq, index: Resources
- *
- * Outputs: 0 on success, -1 on error
- ***********************************************************************/
- int __init dc390_initAdapter (PSH psh, ULONG io_port, UCHAR Irq, UCHAR index)
- {
- PACB pACB, pACB2;
- UCHAR dstate;
- int i;
- pACB = (PACB) psh->hostdata;
- if (check_region (io_port, psh->n_io_port))
- {
- printk(KERN_ERR "DC390: register IO ports error!n");
- return( -1 );
- }
- else
- request_region (io_port, psh->n_io_port, "tmscsim");
- DC390_read8_ (INT_Status, io_port); /* Reset Pending INT */
- if( (i = request_irq(Irq, do_DC390_Interrupt, DC390_IRQ, "tmscsim", pACB) ))
- {
- printk(KERN_ERR "DC390: register IRQ error!n");
- release_region (io_port, psh->n_io_port);
- return( -1 );
- }
- if( !dc390_pACB_start )
- {
- pACB2 = NULL;
- dc390_pACB_start = pACB;
- dc390_pACB_current = pACB;
- pACB->pNextACB = NULL;
- }
- else
- {
- pACB2 = dc390_pACB_current;
- dc390_pACB_current->pNextACB = pACB;
- dc390_pACB_current = pACB;
- pACB->pNextACB = NULL;
- };
- DC390_write8 (CtrlReg1, DIS_INT_ON_SCSI_RST | psh->this_id); /* Disable SCSI bus reset interrupt */
- if (pACB->Gmode2 & RST_SCSI_BUS)
- {
- dc390_ResetSCSIBus( pACB );
- udelay (1000);
- pACB->pScsiHost->last_reset = jiffies + HZ/2
- + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
- /*
- for( i=0; i<(500 + 1000*dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]); i++ )
- udelay(1000);
- */
- };
- pACB->ACBFlag = 0;
- DC390_read8 (INT_Status); /* Reset Pending INT */
- DC390_write8 (Scsi_TimeOut, SEL_TIMEOUT); /* 250ms selection timeout */
- DC390_write8 (Clk_Factor, CLK_FREQ_40MHZ); /* Conversion factor = 0 , 40MHz clock */
- DC390_write8 (ScsiCmd, NOP_CMD); /* NOP cmd - clear command register */
- DC390_write8 (CtrlReg2, EN_FEATURE+EN_SCSI2_CMD); /* Enable Feature and SCSI-2 */
- DC390_write8 (CtrlReg3, FAST_CLK); /* fast clock */
- DC390_write8 (CtrlReg4, pACB->glitch_cfg | /* glitch eater */
- (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION) ? NEGATE_REQACKDATA : 0); /* Negation */
- DC390_write8 (CtcReg_High, 0); /* Clear Transfer Count High: ID */
- 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); /* clear */
- return(0);
- }
- /***********************************************************************
- * Function : static int DC390_init (struct Scsi_Host *host, ...)
- *
- * Purpose : initialize the internal structures for a given SCSI host
- *
- * Inputs : host - pointer to this host adapter's structure
- * io_port - IO ports mapped to this adapter
- * Irq - IRQ assigned to this adpater
- * PDEVDECL - PCI access handle
- * index - Adapter index
- *
- * Outputs: 0 on success, -1 on error
- *
- * Note: written in capitals, because the locking is only done here,
- * not in DC390_detect, called from outside
- ***********************************************************************/
- static int __init DC390_init (PSHT psht, ULONG io_port, UCHAR Irq, PDEVDECL, UCHAR index)
- {
- PSH psh;
- PACB pACB;
- DC390_AFLAGS
- if (dc390_CheckEEpromCheckSum (PDEV, index))
- {
- #ifdef CONFIG_SCSI_DC390T_NOGENSUPP
- printk (KERN_ERR "DC390_init: No EEPROM found!n");
- return( -1 );
- #else
- int speed;
- dc390_adapname = "AM53C974";
- printk (KERN_INFO "DC390_init: No EEPROM found! Trying default settings ...n");
- dc390_check_for_safe_settings ();
- dc390_fill_with_defaults ();
- dc390_EEprom_Override (index);
- 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=%isn",
- tmscsim[0], tmscsim[1], speed/10, speed%10,
- (UCHAR)tmscsim[2], (UCHAR)tmscsim[3], tmscsim[4], 2 << (tmscsim[4]), tmscsim[5]);
- #endif
- }
- else
- {
- dc390_check_for_safe_settings ();
- dc390_EEprom_Override (index);
- }
- psh = scsi_register( psht, sizeof(DC390_ACB) );
- if( !psh ) return( -1 );
- scsi_set_pci_device(psh, pdev);
- pACB = (PACB) psh->hostdata;
- DC390_LOCKA_INIT;
- DC390_LOCK_ACB;
- #if 0
- if( !dc390_pSH_start )
- {
- dc390_pSH_start = psh;
- dc390_pSH_current = psh;
- }
- else
- {
- dc390_pSH_current->next = psh;
- dc390_pSH_current = psh;
- }
- #endif
- DEBUG0(printk(KERN_INFO "DC390: pSH = %8x,", (UINT) psh);)
- DEBUG0(printk(" Index %02i,", index);)
- dc390_initACB( psh, io_port, Irq, index );
- pACB = (PACB) psh->hostdata;
- PDEVSET;
- if( !dc390_initAdapter( psh, io_port, Irq, index ) )
- {
- DEBUG0(printk("nDC390: pACB = %8x, pDCBmap = %8x, pSRB_array = %8xn",
- (UINT) pACB, (UINT) pACB->DCBmap, (UINT) pACB->SRB_array);)
- DEBUG0(printk("DC390: ACB size= %4x, DCB size= %4x, SRB size= %4xn",
- sizeof(DC390_ACB), sizeof(DC390_DCB), sizeof(DC390_SRB) );)
- DC390_UNLOCK_ACB;
- return (0);
- }
- else
- {
- //dc390_pSH_start = NULL;
- scsi_unregister( psh );
- DC390_UNLOCK_ACB;
- return( -1 );
- }
- }
- /***********************************************************************
- * Function : int DC390_detect(Scsi_Host_Template *psht)
- *
- * Purpose : detects and initializes AMD53C974 SCSI chips
- * that were autoprobed, overridden on the LILO command line,
- * or specified at compile time.
- *
- * Inputs : psht - template for this SCSI adapter
- *
- * Returns : number of host adapters detected
- *
- ***********************************************************************/
- #ifndef NEW_PCI
- /* Acc. to PCI 2.1 spec it's up to the driver to enable Bus mastering:
- * We use pci_set_master () for 2.1.x and this func for 2.0.x: */
- static void __init dc390_set_master (PDEVDECL)
- {
- USHORT cmd;
- UCHAR lat;
- PCI_READ_CONFIG_WORD (PDEV, PCI_COMMAND, &cmd);
- if (! (cmd & PCI_COMMAND_MASTER)) {
- printk("PCI: Enabling bus mastering for device %02x:%02xn",
- PCI_BUS_DEV);
- cmd |= PCI_COMMAND_MASTER;
- PCI_WRITE_CONFIG_WORD(PDEV, PCI_COMMAND, cmd);
- }
- PCI_READ_CONFIG_BYTE (PDEV, PCI_LATENCY_TIMER, &lat);
- if (lat < 16 /* || lat == 255 */) {
- printk("PCI: Setting latency timer of device %02x:%02x from %i to 64n",
- PCI_BUS_DEV, lat);
- PCI_WRITE_CONFIG_BYTE(PDEV, PCI_LATENCY_TIMER, 64);
- }
- };
- #endif /* ! NEW_PCI */
- static void __init dc390_set_pci_cfg (PDEVDECL)
- {
- USHORT cmd;
- PCI_READ_CONFIG_WORD (PDEV, PCI_COMMAND, &cmd);
- cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY | PCI_COMMAND_IO;
- PCI_WRITE_CONFIG_WORD (PDEV, PCI_COMMAND, cmd);
- PCI_WRITE_CONFIG_WORD (PDEV, PCI_STATUS, (PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY));
- };
- int __init DC390_detect (Scsi_Host_Template *psht)
- {
- PDEVDECL0;
- UCHAR irq;
- UINT io_port;
- //DC390_IFLAGS
- DC390_DFLAGS
- DC390_LOCK_DRV;
- //dc390_pSHT_start = psht;
- dc390_pACB_start = NULL;
- if ( PCI_PRESENT )
- while (PCI_FIND_DEVICE (PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD53C974))
- {
- #if LINUX_VERSION_CODE > KERNEL_VERSION(2,3,30)
- if (pci_enable_device (pdev))
- continue;
- #endif
- //DC390_LOCK_IO; /* Remove this when going to new eh */
- PCI_GET_IO_AND_IRQ;
- DEBUG0(printk(KERN_INFO "DC390(%i): IO_PORT=%04x,IRQ=%xn", dc390_adapterCnt, (UINT) io_port, irq);)
- if( !DC390_init(psht, io_port, irq, PDEV, dc390_adapterCnt))
- {
- PCI_SET_MASTER;
- dc390_set_pci_cfg (PDEV);
- dc390_adapterCnt++;
- };
- //DC390_UNLOCK_IO; /* Remove when going to new eh */
- }
- else
- printk (KERN_ERR "DC390: No PCI BIOS found!n");
- if (dc390_adapterCnt)
- #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,30)
- psht->proc_name = "tmscsim";
- #else
- psht->proc_dir = &DC390_proc_scsi_tmscsim;
- #endif
- printk(KERN_INFO "DC390: %i adapters foundn", dc390_adapterCnt);
- DC390_UNLOCK_DRV;
- return( dc390_adapterCnt );
- }
- /***********************************************************************
- * Functions: dc390_inquiry(), dc390_inquiry_done()
- *
- * Purpose: When changing speed etc., we have to issue an INQUIRY
- * command to make sure, we agree upon the nego parameters
- * with the device
- ***********************************************************************/
- static void dc390_inquiry_done (Scsi_Cmnd* cmd)
- {
- printk (KERN_INFO "DC390: INQUIRY (ID %02x LUN %02x) returned %08xn",
- cmd->target, cmd->lun, cmd->result);
- if (cmd->result)
- {
- PACB pACB = (PACB)cmd->host->hostdata;
- PDCB pDCB = dc390_findDCB (pACB, cmd->target, cmd->lun);
- printk ("DC390: Unsetting DsCn, Sync and TagQ!n");
- if (pDCB)
- {
- pDCB->DevMode &= ~(SYNC_NEGO_ | TAG_QUEUEING_ | EN_DISCONNECT_ );
- dc390_updateDCB (pACB, pDCB);
- };
- };
- kfree (cmd);
- };
- void dc390_inquiry (PACB pACB, PDCB pDCB)
- {
- char* buffer;
- Scsi_Cmnd* cmd;
- cmd = kmalloc (sizeof(Scsi_Cmnd) + 256, GFP_ATOMIC);
- if (!cmd) { printk ("DC390: kmalloc failed in inquiry!n"); return; };
- buffer = (char*)cmd + sizeof(Scsi_Cmnd);
- memset (cmd, 0, sizeof(Scsi_Cmnd) + 256);
- cmd->cmnd[0] = INQUIRY;
- cmd->cmnd[1] = (pDCB->TargetLUN << 5) & 0xe0;
- cmd->cmnd[4] = 0xff;
- cmd->cmd_len = 6; cmd->old_cmd_len = 6;
- cmd->host = pACB->pScsiHost;
- cmd->target = pDCB->TargetID;
- cmd->lun = pDCB->TargetLUN;
- cmd->serial_number = 1;
- cmd->pid = 390;
- cmd->bufflen = 128;
- cmd->buffer = buffer;
- cmd->request_bufflen = 128;
- cmd->request_buffer = &buffer[128];
- cmd->done = dc390_inquiry_done;
- cmd->scsi_done = dc390_inquiry_done;
- cmd->timeout_per_command = HZ;
- cmd->request.rq_status = RQ_SCSI_BUSY;
- pDCB->SyncMode &= ~SYNC_NEGO_DONE;
- printk (KERN_INFO "DC390: Queue INQUIRY command to dev ID %02x LUN %02xn",
- pDCB->TargetID, pDCB->TargetLUN);
- DC390_queue_command (cmd, dc390_inquiry_done);
- };
- /***********************************************************************
- * Functions: dc390_sendstart(), dc390_sendstart_done()
- *
- * Purpose: When changing speed etc., we have to issue an INQUIRY
- * command to make sure, we agree upon the nego parameters
- * with the device
- ***********************************************************************/
- static void dc390_sendstart_done (Scsi_Cmnd* cmd)
- {
- printk (KERN_INFO "DC390: SENDSTART (ID %02x LUN %02x) returned %08xn",
- cmd->target, cmd->lun, cmd->result);
- kfree (cmd);
- };
- void dc390_sendstart (PACB pACB, PDCB pDCB)
- {
- char* buffer;
- Scsi_Cmnd* cmd;
- cmd = kmalloc (sizeof(Scsi_Cmnd) + 256, GFP_ATOMIC);
- if (!cmd) { printk ("DC390: kmalloc failed in sendstart!n"); return; };
- buffer = (char*)cmd + sizeof(Scsi_Cmnd);
- memset (cmd, 0, sizeof(Scsi_Cmnd) + 256);
- cmd->cmnd[0] = 0x1b; /* START_STOP_UNIT */
- cmd->cmnd[1] = (pDCB->TargetLUN << 5) & 0xe0;
- cmd->cmnd[4] = 0x01; /* START */
- cmd->cmd_len = 6; cmd->old_cmd_len = 6;
- cmd->host = pACB->pScsiHost;
- cmd->target = pDCB->TargetID;
- cmd->lun = pDCB->TargetLUN;
- cmd->serial_number = 1;
- cmd->pid = 310;
- cmd->bufflen = 128;
- cmd->buffer = buffer;
- cmd->request_bufflen = 128;
- cmd->request_buffer = &buffer[128];
- cmd->done = dc390_sendstart_done;
- cmd->scsi_done = dc390_sendstart_done;
- cmd->timeout_per_command = 5*HZ;
- cmd->request.rq_status = RQ_SCSI_BUSY;
- pDCB->SyncMode &= ~SYNC_NEGO_DONE;
- printk (KERN_INFO "DC390: Queue SEND_START command to dev ID %02x LUN %02xn",
- pDCB->TargetID, pDCB->TargetLUN);
- DC390_queue_command (cmd, dc390_sendstart_done);
- };
- /********************************************************************
- * Function: dc390_set_info()
- *
- * Purpose: Change adapter config
- *
- * Strings are parsed similar to the output of tmscsim_proc_info ()
- * '-' means no change
- *******************************************************************/
- static int dc390_scanf (char** p1, char** p2, int* var)
- {
- *p2 = *p1;
- *var = simple_strtoul (*p2, p1, 10);
- if (*p2 == *p1) return -1;
- *p1 = strtok (0, " tn:=,;.");
- return 0;
- };
- #define SCANF(p1, p2, var, min, max)
- if (dc390_scanf (&p1, &p2, &var)) goto einv;
- else if (var<min || var>max) goto einv2
- static int dc390_yesno (char** p, char* var, char bmask)
- {
- switch (**p)
- {
- case 'Y': *var |= bmask; break;
- case 'N': *var &= ~bmask; break;
- case '-': break;
- default: return -1;
- }
- *p = strtok (0, " tn:=,;");
- return 0;
- };
- #define YESNO(p, var, bmask)
- if (dc390_yesno (&p, &var, bmask)) goto einv;
- else dc390_updateDCB (pACB, pDCB);
- if (!p) goto ok
- static int dc390_search (char **p1, char **p2, char *var, char* txt, int max, int scale, char* ign)
- {
- int dum;
- if (! memcmp (*p1, txt, strlen(txt)))
- {
- *p2 = strtok (0, " tn:=,;");
- if (!*p2) return -1;
- dum = simple_strtoul (*p2, p1, 10);
- if (*p2 == *p1) return -1;
- if (dum >= 0 && dum <= max)
- { *var = (dum * 100) / scale; }
- else return -2;
- *p1 = strtok (0, " tn:=,;");
- if (*ign && *p1 && strlen(*p1) >= strlen(ign) &&
- !(memcmp (*p1, ign, strlen(ign))))
- *p1 = strtok (0, " tn:=,;");
- }
- return 0;
- };
- #define SEARCH(p1, p2, var, txt, max)
- if (dc390_search (&p1, &p2, (PUCHAR)(&var), txt, max, 100, "")) goto einv2;
- else if (!p1) goto ok2
- #define SEARCH2(p1, p2, var, txt, max, scale)
- if (dc390_search (&p1, &p2, &var, txt, max, scale, "")) goto einv2;
- else if (!p1) goto ok2
- #define SEARCH3(p1, p2, var, txt, max, scale, ign)
- if (dc390_search (&p1, &p2, &var, txt, max, scale, ign)) goto einv2;
- else if (!p1) goto ok2
- #ifdef DC390_PARSEDEBUG
- static char _prstr[256];
- char* prstr (char* p, char* e)
- {
- char* c = _prstr;
- while (p < e)
- if (*p == 0) { *c++ = ':'; p++; }
- else if (*p == 10) { *c++ = '\'; *c++ = 'n'; p++; }
- else *c++ = *p++;
- *c = 0;
- return _prstr;
- };
- #endif
- int dc390_set_info (char *buffer, int length, PACB pACB)
- {
- char *pos = buffer, *p0 = buffer;
- char needs_inquiry = 0;
- int dum = 0;
- char dev;
- PDCB pDCB = pACB->pLinkDCB;
- DC390_IFLAGS
- DC390_AFLAGS
- pos[length] = 0;
- DC390_LOCK_IO;
- DC390_LOCK_ACB;
- /* UPPERCASE */
- /* Don't use kernel toupper, because of 2.0.x bug: ctmp unexported */
- while (*pos)
- { if (*pos >='a' && *pos <= 'z') *pos = *pos + 'A' - 'a'; pos++; };
- /* We should protect __strtok ! */
- /* spin_lock (strtok_lock); */
- /* Remove WS */
- pos = strtok (buffer, " t:n=,;");
- if (!pos) goto ok;
- next:
- if (!memcmp (pos, "RESET", 5)) goto reset;
- else if (!memcmp (pos, "INQUIRY", 7)) goto inquiry;
- else if (!memcmp (pos, "REMOVE", 6)) goto remove;
- else if (!memcmp (pos, "ADD", 3)) goto add;
- else if (!memcmp (pos, "START", 5)) goto start;
- else if (!memcmp (pos, "DUMP", 4)) goto dump;
- if (isdigit (*pos))
- {
- /* Device config line */
- int dev, id, lun; char* pdec;
- char olddevmode;
- SCANF (pos, p0, dev, 0, pACB->DCBCnt-1);
- if (pos) { SCANF (pos, p0, id, 0, 7); } else goto einv;
- if (pos) { SCANF (pos, p0, lun, 0, 7); } else goto einv;
- if (!pos) goto einv;
- PARSEDEBUG(printk (KERN_INFO "DC390: config line %i %i %i:"%s"n", dev, id, lun, prstr (pos, &buffer[length]));)
- pDCB = pACB->pLinkDCB;
- for (dum = 0; dum < dev; dum++) pDCB = pDCB->pNextDCB;
- /* Sanity Check */
- if (pDCB->TargetID != id || pDCB->TargetLUN != lun)
- {
- printk (KERN_ERR "DC390: no such device: Idx=%02i ID=%02i LUN=%02in",
- dev, id, lun);
- goto einv2;
- };
- if (pDCB->pWaitingSRB || pDCB->pGoingSRB)
- {
- printk ("DC390: Cannot change dev (%i-%i) cfg: Pending requestsn",
- pDCB->TargetID, pDCB->TargetLUN);
- goto einv;
- };
- olddevmode = pDCB->DevMode;
- YESNO (pos, pDCB->DevMode, PARITY_CHK_);
- needs_inquiry++;
- YESNO (pos, pDCB->DevMode, SYNC_NEGO_);
- if ((olddevmode & SYNC_NEGO_) == (pDCB->DevMode & SYNC_NEGO_)) needs_inquiry--;
- needs_inquiry++;
- YESNO (pos, pDCB->DevMode, EN_DISCONNECT_);
- if ((olddevmode & EN_DISCONNECT_) == (pDCB->DevMode & EN_DISCONNECT_)) needs_inquiry--;
- YESNO (pos, pDCB->DevMode, SEND_START_);
- needs_inquiry++;
- YESNO (pos, pDCB->DevMode, TAG_QUEUEING_);
- if ((olddevmode & TAG_QUEUEING_) == (pDCB->DevMode & TAG_QUEUEING_)) needs_inquiry--;
- dc390_updateDCB (pACB, pDCB);
- if (!pos) goto ok;
- olddevmode = pDCB->NegoPeriod;
- /* Look for decimal point (Speed) */
- pdec = pos;
- while (pdec++ < &buffer[length]) if (*pdec == '.') break;
- /* NegoPeriod */
- if (*pos != '-')
- {
- SCANF (pos, p0, dum, 72, 800);
- pDCB->NegoPeriod = dum >> 2;
- if (pDCB->NegoPeriod != olddevmode) needs_inquiry++;
- if (!pos) goto ok;
- if (memcmp (pos, "NS", 2) == 0) pos = strtok (0, " tn:=,;.");
- }
- else pos = strtok (0, " tn:=,;.");
- if (!pos) goto ok;
- /* Sync Speed in MHz */
- if (*pos != '-')
- {
- SCANF (pos, p0, dum, 1, 13);
- pDCB->NegoPeriod = (1000/dum) >> 2;
- if (pDCB->NegoPeriod != olddevmode && !pos) needs_inquiry++;
- if (!pos) goto ok;
- /* decimal */
- if (pos-1 == pdec)
- {
- int dumold = dum;
- dum = simple_strtoul (pos, &p0, 10) * 10;
- for (; p0-pos > 1; p0--) dum /= 10;
- pDCB->NegoPeriod = (100000/(100*dumold + dum)) >> 2;
- if (pDCB->NegoPeriod < 19) pDCB->NegoPeriod = 19;
- pos = strtok (0, " tn:=,;");
- if (!pos) goto ok;
- };
- if (*pos == 'M') pos = strtok (0, " tn:=,;");
- if (pDCB->NegoPeriod != olddevmode) needs_inquiry++;
- }
- else pos = strtok (0, " tn:=,;");
- /* dc390_updateDCB (pACB, pDCB); */
- if (!pos) goto ok;
- olddevmode = pDCB->SyncOffset;
- /* SyncOffs */
- if (*pos != '-')
- {
- SCANF (pos, p0, dum, 0, 0x0f);
- pDCB->SyncOffset = dum;
- if (pDCB->SyncOffset > olddevmode) needs_inquiry++;
- }
- else pos = strtok (0, " tn:=,;");
- if (!pos) goto ok;
- dc390_updateDCB (pACB, pDCB);
- //olddevmode = pDCB->MaxCommand;
- /* MaxCommand (Tags) */
- if (*pos != '-')
- {
- SCANF (pos, p0, dum, 1, 32 /*pACB->TagMaxNum*/);
- if (pDCB->SyncMode & EN_TAG_QUEUEING)
- pDCB->MaxCommand = dum;
- else printk (KERN_INFO "DC390: Can't set MaxCmd larger than one without Tag Queueing!n");
- }
- else pos = strtok (0, " tn:=,;");
- }
- else
- {
- char* p1 = pos; UCHAR dum, newadaptid;
- PARSEDEBUG(printk (KERN_INFO "DC390: chg adapt cfg "%s"n", prstr (pos, &buffer[length]));)
- dum = GLITCH_TO_NS (pACB->glitch_cfg);
- /* Adapter setting */
- SEARCH (pos, p0, pACB->pScsiHost->max_id, "MAXID", 8);
- SEARCH (pos, p0, pACB->pScsiHost->max_lun, "MAXLUN", 8);
- SEARCH (pos, p0, newadaptid, "ADAPTERID", 7);
- SEARCH (pos, p0, pACB->TagMaxNum, "TAGMAXNUM", 32);
- SEARCH (pos, p0, pACB->ACBFlag, "ACBFLAG", 255);
- SEARCH3 (pos, p0, dum, "GLITCHEATER", 40, 1000, "NS");
- SEARCH3 (pos, p0, pACB->sel_timeout, "SELTIMEOUT", 400, 163, "MS");
- SEARCH3 (pos, p0, dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY], "DELAYRESET", 180, 100, "S");
- ok2:
- pACB->glitch_cfg = NS_TO_GLITCH (dum);
- if (pACB->sel_timeout < 60) pACB->sel_timeout = 60;
- DC390_write8 (Scsi_TimeOut, pACB->sel_timeout);
- if (newadaptid != pACB->pScsiHost->this_id)
- {
- pACB->pScsiHost->this_id = newadaptid;
- dc390_ResetDevParam (pACB);
- }
- //dum = 0; while (1 << dum <= pACB->TagMaxNum) dum ++;
- //pACB->TagMaxNum &= (1 << --dum);
- dc390_updateDCBs (pACB);
- // All devs should be INQUIRED now
- if (pos == p1) goto einv;
- }
- if (pos) goto next;
- ok:
- /* spin_unlock (strtok_lock); */
- DC390_UNLOCK_ACB;
- if (needs_inquiry)
- { dc390_updateDCB (pACB, pDCB); dc390_inquiry (pACB, pDCB); };
- DC390_UNLOCK_IO;
- return (length);
- einv2:
- pos = p0;
- einv:
- /* spin_unlock (strtok_lock); */
- DC390_UNLOCK_ACB;
- DC390_UNLOCK_IO;
- printk (KERN_WARNING "DC390: parse error near "%s"n", (pos? pos: "NULL"));
- return (-EINVAL);
- reset:
- {
- Scsi_Cmnd cmd; cmd.host = pACB->pScsiHost;
- printk (KERN_WARNING "DC390: Driver reset requested!n");
- DC390_UNLOCK_ACB;
- DC390_reset (&cmd, 0);
- DC390_UNLOCK_IO;
- };
- return (length);
- dump:
- {
- dc390_dumpinfo (pACB, 0, 0);
- DC390_UNLOCK_ACB;
- DC390_UNLOCK_IO;
- }
- return (length);
- inquiry:
- {
- pos = strtok (0, " tn.:;="); if (!pos) goto einv;
- dev = simple_strtoul (pos, &p0, 10);
- if (dev >= pACB->DCBCnt) goto einv_dev;
- for (dum = 0; dum < dev; dum++) pDCB = pDCB->pNextDCB;
- printk (KERN_NOTICE " DC390: Issue INQUIRY command to Dev(Idx) %i SCSI ID %i LUN %in",
- dev, pDCB->TargetID, pDCB->TargetLUN);
- DC390_UNLOCK_ACB;
- dc390_inquiry (pACB, pDCB);
- DC390_UNLOCK_IO;
- };
- return (length);
- remove:
- {
- pos = strtok (0, " tn.:;="); if (!pos) goto einv;
- dev = simple_strtoul (pos, &p0, 10);
- if (dev >= pACB->DCBCnt) goto einv_dev;
- for (dum = 0; dum < dev; dum++) pDCB = pDCB->pNextDCB;
- printk (KERN_NOTICE " DC390: Remove DCB for Dev(Idx) %i SCSI ID %i LUN %in",
- dev, pDCB->TargetID, pDCB->TargetLUN);
- /* TO DO: We should make sure no pending commands are left */
- dc390_remove_dev (pACB, pDCB);
- DC390_UNLOCK_ACB;
- DC390_UNLOCK_IO;
- };
- return (length);
- add:
- {
- int id, lun;
- pos = strtok (0, " tn.:;=");
- if (pos) { SCANF (pos, p0, id, 0, 7); } else goto einv;
- if (pos) { SCANF (pos, p0, lun, 0, 7); } else goto einv;
- pDCB = dc390_findDCB (pACB, id, lun);
- if (pDCB) { printk ("DC390: ADD: Device already existingn"); goto einv; };
- dc390_initDCB (pACB, &pDCB, id, lun);
- DC390_UNLOCK_ACB;
- dc390_inquiry (pACB, pDCB);
- DC390_UNLOCK_IO;
- };
- return (length);
- start:
- {
- int id, lun;
- pos = strtok (0, " tn.:;=");
- if (pos) { SCANF (pos, p0, id, 0, 7); } else goto einv;
- if (pos) { SCANF (pos, p0, lun, 0, 7); } else goto einv;
- pDCB = dc390_findDCB (pACB, id, lun);
- if (pDCB) printk ("DC390: SendStart: Device already existing ...n");
- else dc390_initDCB (pACB, &pDCB, id, lun);
- DC390_UNLOCK_ACB;
- dc390_sendstart (pACB, pDCB);
- dc390_inquiry (pACB, pDCB);
- DC390_UNLOCK_IO;
- };
- return (length);
- einv_dev:
- printk (KERN_WARNING "DC390: Ignore cmnd to illegal Dev(Idx) %i. Valid range: 0 - %i.n",
- dev, pACB->DCBCnt - 1);
- DC390_UNLOCK_ACB;
- DC390_UNLOCK_IO;
- return (-EINVAL);
- }
- #undef SEARCH
- #undef YESNO
- #undef SCANF
- /********************************************************************
- * Function: DC390_proc_info(char* buffer, char **start,
- * off_t offset, int length, int hostno, int inout)
- *
- * Purpose: return SCSI Adapter/Device Info
- *
- * Input: buffer: Pointer to a buffer where to write info
- * start :
- * offset:
- * hostno: Host adapter index
- * inout : Read (=0) or set(!=0) info
- *
- * Output: buffer: contains info
- * length; length of info in buffer
- *
- * return value: length
- *
- ********************************************************************/
- #undef SPRINTF
- #define SPRINTF(args...) pos += sprintf(pos, ## args)
- #define YESNO(YN)
- if (YN) SPRINTF(" Yes ");
- else SPRINTF(" No ")
- int DC390_proc_info (char *buffer, char **start,
- off_t offset, int length, int hostno, int inout)
- {
- int dev, spd, spd1;
- char *pos = buffer;
- PSH shpnt = 0;
- PACB pACB;
- PDCB pDCB;
- PSCSICMD pcmd;
- DC390_AFLAGS
- pACB = dc390_pACB_start;
- while(pACB != (PACB)-1)
- {
- shpnt = pACB->pScsiHost;
- if (shpnt->host_no == hostno) break;
- pACB = pACB->pNextACB;
- }
- if (pACB == (PACB)-1) return(-ESRCH);
- if(!shpnt) return(-ESRCH);
- if(inout) /* Has data been written to the file ? */
- return dc390_set_info(buffer, length, pACB);
- SPRINTF("Tekram DC390/AM53C974 PCI SCSI Host Adapter, ");
- SPRINTF("Driver Version %sn", DC390_VERSION);
- DC390_LOCK_ACB;
- SPRINTF("SCSI Host Nr %i, ", shpnt->host_no);
- SPRINTF("%s Adapter Nr %in", dc390_adapname, pACB->AdapterIndex);
- SPRINTF("IOPortBase 0x%04x, ", pACB->IOPortBase);
- SPRINTF("IRQ %02in", pACB->IRQLevel);
- SPRINTF("MaxID %i, MaxLUN %i, ", shpnt->max_id, shpnt->max_lun);
- SPRINTF("AdapterID %i, SelTimeout %i ms, DelayReset %i sn",
- shpnt->this_id, (pACB->sel_timeout*164)/100,
- dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY]);
- SPRINTF("TagMaxNum %i, Status 0x%02x, ACBFlag 0x%02x, GlitchEater %i nsn",
- pACB->TagMaxNum, pACB->status, pACB->ACBFlag, GLITCH_TO_NS(pACB->glitch_cfg)*12);
- SPRINTF("Statistics: Cmnds %li, Cmnds not sent directly %i, Out of SRB conds %in",
- pACB->Cmds, pACB->CmdInQ, pACB->CmdOutOfSRB);
- SPRINTF(" Lost arbitrations %i, Sel. connected %i, Connected: %sn",
- pACB->SelLost, pACB->SelConn, pACB->Connected? "Yes": "No");
- SPRINTF("Nr of attached devices: %i, Nr of DCBs: %in", pACB->DeviceCnt, pACB->DCBCnt);
- SPRINTF("Map of attached LUNs: %02x %02x %02x %02x %02x %02x %02x %02xn",
- pACB->DCBmap[0], pACB->DCBmap[1], pACB->DCBmap[2], pACB->DCBmap[3],
- pACB->DCBmap[4], pACB->DCBmap[5], pACB->DCBmap[6], pACB->DCBmap[7]);
- SPRINTF("Idx ID LUN Prty Sync DsCn SndS TagQ NegoPeriod SyncSpeed SyncOffs MaxCmdn");
- pDCB = pACB->pLinkDCB;
- for (dev = 0; dev < pACB->DCBCnt; dev++)
- {
- SPRINTF("%02i %02i %02i ", dev, pDCB->TargetID, pDCB->TargetLUN);
- YESNO(pDCB->DevMode & PARITY_CHK_);
- YESNO(pDCB->SyncMode & SYNC_NEGO_DONE);
- YESNO(pDCB->DevMode & EN_DISCONNECT_);
- YESNO(pDCB->DevMode & SEND_START_);
- YESNO(pDCB->SyncMode & EN_TAG_QUEUEING);
- if (pDCB->SyncOffset & 0x0f)
- {
- int sp = pDCB->SyncPeriod; if (! (pDCB->CtrlR3 & FAST_SCSI)) sp++;
- SPRINTF(" %03i ns ", (pDCB->NegoPeriod) << 2);
- spd = 40/(sp); spd1 = 40%(sp);
- spd1 = (spd1 * 10 + sp/2) / (sp);
- SPRINTF(" %2i.%1i M %02i", spd, spd1, (pDCB->SyncOffset & 0x0f));
- }
- else SPRINTF(" (%03i ns) ", (pDCB->NegoPeriod) << 2);
- /* Add more info ...*/
- SPRINTF (" %02in", pDCB->MaxCommand);
- pDCB = pDCB->pNextDCB;
- }
- SPRINTF ("Commands in Queues: Query: %li:", pACB->QueryCnt);
- for (pcmd = pACB->pQueryHead; pcmd; pcmd = pcmd->next)
- SPRINTF (" %li", pcmd->pid);
- if (timer_pending(&pACB->Waiting_Timer)) SPRINTF ("Waiting queue timer runningn");
- else SPRINTF ("n");
- pDCB = pACB->pLinkDCB;
- for (dev = 0; dev < pACB->DCBCnt; dev++)
- {
- PSRB pSRB;
- if (pDCB->WaitSRBCnt)
- SPRINTF ("DCB (%02i-%i): Waiting: %i:", pDCB->TargetID, pDCB->TargetLUN,
- pDCB->WaitSRBCnt);
- for (pSRB = pDCB->pWaitingSRB; pSRB; pSRB = pSRB->pNextSRB)
- SPRINTF(" %li", pSRB->pcmd->pid);
- if (pDCB->GoingSRBCnt)
- SPRINTF ("nDCB (%02i-%i): Going : %i:", pDCB->TargetID, pDCB->TargetLUN,
- pDCB->GoingSRBCnt);
- for (pSRB = pDCB->pGoingSRB; pSRB; pSRB = pSRB->pNextSRB)
- #if 0 //def DC390_DEBUGTRACE
- SPRINTF(" %sn ", pSRB->debugtrace);
- #else
- SPRINTF(" %li", pSRB->pcmd->pid);
- #endif
- if (pDCB->WaitSRBCnt || pDCB->GoingSRBCnt) SPRINTF ("n");
- pDCB = pDCB->pNextDCB;
- }
- #ifdef DC390_DEBUGDCB
- SPRINTF ("DCB list for ACB %p:n", pACB);
- pDCB = pACB->pLinkDCB;
- SPRINTF ("%p", pDCB);
- for (dev = 0; dev < pACB->DCBCnt; dev++, pDCB=pDCB->pNextDCB)
- SPRINTF ("->%p", pDCB->pNextDCB);
- SPRINTF("n");
- #endif
- DC390_UNLOCK_ACB;
- *start = buffer + offset;
- if (pos - buffer < offset)
- return 0;
- else if (pos - buffer - offset < length)
- return pos - buffer - offset;
- else
- return length;
- }
- #undef YESNO
- #undef SPRINTF
- #ifdef MODULE
- /***********************************************************************
- * Function : static int dc390_shutdown (struct Scsi_Host *host)
- *
- * Purpose : does a clean (we hope) shutdown of the SCSI chip.
- * Use prior to dumping core, unloading the driver, etc.
- *
- * Returns : 0 on success
- ***********************************************************************/
- static int dc390_shutdown (struct Scsi_Host *host)
- {
- UCHAR bval;
- PACB pACB = (PACB)(host->hostdata);
- /* pACB->soft_reset(host); */
- printk(KERN_INFO "DC390: shutdownn");
- pACB->ACBFlag = RESET_DEV;
- bval = DC390_read8 (CtrlReg1);
- bval |= DIS_INT_ON_SCSI_RST;
- DC390_write8 (CtrlReg1, bval); /* disable interrupt */
- if (pACB->Gmode2 & RST_SCSI_BUS)
- dc390_ResetSCSIBus (pACB);
- if (timer_pending (&pACB->Waiting_Timer)) del_timer (&pACB->Waiting_Timer);
- return( 0 );
- }
- void dc390_freeDCBs (struct Scsi_Host *host)
- {
- PDCB pDCB, nDCB;
- PACB pACB = (PACB)(host->hostdata);
- pDCB = pACB->pLinkDCB;
- if (!pDCB) return;
- do
- {
- nDCB = pDCB->pNextDCB;
- DCBDEBUG(printk (KERN_INFO "DC390: Free DCB (ID %i, LUN %i): %pn",
- pDCB->TargetID, pDCB->TargetLUN, pDCB);)
- //kfree (pDCB);
- dc390_remove_dev (pACB, pDCB);
- pDCB = nDCB;
- } while (pDCB && pACB->pLinkDCB);
- };
- int DC390_release (struct Scsi_Host *host)
- {
- DC390_AFLAGS DC390_IFLAGS
- PACB pACB = (PACB)(host->hostdata);
- DC390_LOCK_IO;
- DC390_LOCK_ACB;
- /* TO DO: We should check for outstanding commands first. */
- dc390_shutdown (host);
- if (host->irq != IRQ_NONE)
- {
- DEBUG0(printk(KERN_INFO "DC390: Free IRQ %in",host->irq);)
- free_irq (host->irq, pACB);
- }
- release_region(host->io_port,host->n_io_port);
- dc390_freeDCBs (host);
- DC390_UNLOCK_ACB;
- DC390_UNLOCK_IO;
- return( 1 );
- }
- #endif /* def MODULE */
- #if LINUX_VERSION_CODE > KERNEL_VERSION(2,3,99)
- static Scsi_Host_Template driver_template = DC390_T;
- #include "scsi_module.c"
- #endif