| /*********************************************************************** |
| * 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 (((struct Scsi_Host *)dev)->host_lock, iflags) |
| # define DC390_UNLOCK_IO spin_unlock_irqrestore (((struct Scsi_Host *)dev)->host_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(dev) /* spin_lock_irqsave (&io_request_lock, iflags) */ |
| # define DC390_UNLOCK_IO(dev) /* 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(dev) spin_lock_irqsave (((struct Scsi_Host *)dev)->host_lock, iflags) |
| # define DC390_UNLOCK_IO(dev) spin_unlock_irqrestore (((struct Scsi_Host *)dev)->host_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 %08x\n", 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 Query\n", 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 Query\n", 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 %p\n", 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 %p\n", 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 Waiting\n", 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 Waiting\n", 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 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 (PDCB pDCB, PSRB pSRB) |
| { |
| DEBUG0(printk("DC390: Remove SRB %p from Going\n", 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 = %li\n", 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 Waiting\n", 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(pACB.pScsiHost); |
| DC390_LOCK_ACB; |
| dc390_Waiting_process (pACB); |
| DC390_UNLOCK_ACB; |
| DC390_UNLOCK_IO(pACB.pScsiHost); |
| } |
| |
| /*********************************************************************** |
| * 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 %d\n", |
| 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 %02x\n", |
| 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 %02x\n", |
| 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 %02x\n", |
| 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 != 0\n");) |
| 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 Waiting\n"); else printk ("DC390: Free SRB w/ Waiting\n");) |
| 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 Waiting\n"); else printk ("DC390: Free SRB w/o Waiting\n");) |
| 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(unsigned char *buf, 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(unsigned char *buf, 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 *) (buf+64) == 0xAA55) { |
| for (largest_cyl = -1, p = (struct partition *) buf, |
| 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; |
| int ret_code = -1; |
| int size = disk->capacity; |
| unsigned char *buf; |
| |
| if ((buf = scsi_bios_ptable(devno))) |
| { |
| /* try to infer mapping from partition table */ |
| ret_code = partsize (buf, (unsigned long) size, (unsigned int *) geom + 2, |
| (unsigned int *) geom + 0, (unsigned int *) geom + 1); |
| kfree (buf); |
| } |
| 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 %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); |
| PDEVSET1; 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 linux/drivers/scsi/README.tmscsim\n"); |
| }; |
| |
| |
| /*********************************************************************** |
| * 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 %i\n", 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 ("%08lx\n", 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("done\n"); |
| 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): %p\n" \ |
| 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%02x\n", \ |
| 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=%is\n", |
| 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 = %8x\n",\ |
| (UINT) pACB, (UINT) pACB->DCBmap, (UINT) pACB->SRB_array);) |
| DEBUG0(printk("DC390: ACB size= %4x, DCB size= %4x, SRB size= %4x\n",\ |
| 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:%02x\n", |
| 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 64\n", |
| 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=%x\n", 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 found\n", 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 %08x\n", |
| 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 %02x\n", |
| 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 %08x\n", |
| 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 %02x\n", |
| 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** buffer, char** pos, char** p0, int* var) |
| { |
| *p0 = *pos; |
| *var = simple_strtoul (*p0, pos, 10); |
| if (*p0 == *pos) return -1; |
| *pos = strsep (buffer, " \t\n:=,;."); |
| return 0; |
| }; |
| |
| #define SCANF(buffer, pos, p0, var, min, max) \ |
| if (dc390_scanf (&buffer, &pos, &p0, &var)) goto einv; \ |
| else if (var<min || var>max) goto einv2 |
| |
| static int dc390_yesno (char** buffer, char** pos, char* var, char bmask) |
| { |
| switch (**pos) |
| { |
| case 'Y': *var |= bmask; break; |
| case 'N': *var &= ~bmask; break; |
| case '-': break; |
| default: return -1; |
| } |
| *pos = strsep (buffer, " \t\n:=,;"); |
| return 0; |
| }; |
| |
| #define YESNO(buffer, pos, var, bmask) \ |
| if (dc390_yesno (&buffer, &pos, &var, bmask)) goto einv; \ |
| else dc390_updateDCB (pACB, pDCB); \ |
| if (!p) goto ok |
| |
| static int dc390_search (char** buffer, char** pos, char** p0, char* var, char* txt, int max, int scale, char* ign) |
| { |
| int dum; |
| if (! memcmp (*pos, txt, strlen(txt))) |
| { |
| *p0 = strsep (buffer, " \t\n:=,;"); |
| if (!*p0) return -1; |
| dum = simple_strtoul (*p0, pos, 10); |
| if (*p0 == *pos) return -1; |
| if (dum >= 0 && dum <= max) |
| { *var = (dum * 100) / scale; } |
| else return -2; |
| *pos = strsep (buffer, " \t\n:=,;"); |
| if (*ign && *pos && strlen(*pos) >= strlen(ign) && |
| !(memcmp (*pos, ign, strlen(ign)))) |
| *pos = strsep (buffer, " \t\n:=,;"); |
| |
| } |
| return 0; |
| }; |
| |
| #define SEARCH(buffer, pos, p0, var, txt, max) \ |
| if (dc390_search (&buffer, &pos, &p0, (PUCHAR)(&var), txt, max, 100, "")) goto einv2; \ |
| else if (!p1) goto ok2 |
| |
| #define SEARCH2(buffer, pos, p0, var, txt, max, scale) \ |
| if (dc390_search (&buffer, &pos, &p0, &var, txt, max, scale, "")) goto einv2; \ |
| else if (!p1) goto ok2 |
| |
| #define SEARCH3(buffer, pos, &p0, var, txt, max, scale, ign) \ |
| if (dc390_search (&buffer, &pos, p0, &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(pACB.pScsiHost); |
| 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++; }; |
| |
| /* Remove WS */ |
| pos = strsep (&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 (buffer, pos, p0, dev, 0, pACB->DCBCnt-1); |
| if (*pos) { SCANF (buffer, pos, p0, id, 0, 7); } else goto einv; |
| if (*pos) { SCANF (buffer, 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=%02i\n", |
| dev, id, lun); |
| goto einv2; |
| }; |
| |
| if (pDCB->pWaitingSRB || pDCB->pGoingSRB) |
| { |
| printk ("DC390: Cannot change dev (%i-%i) cfg: Pending requests\n", |
| pDCB->TargetID, pDCB->TargetLUN); |
| goto einv; |
| }; |
| |
| olddevmode = pDCB->DevMode; |
| YESNO (buffer, pos, pDCB->DevMode, PARITY_CHK_); |
| needs_inquiry++; |
| YESNO (buffer, pos, pDCB->DevMode, SYNC_NEGO_); |
| if ((olddevmode & SYNC_NEGO_) == (pDCB->DevMode & SYNC_NEGO_)) needs_inquiry--; |
| needs_inquiry++; |
| YESNO (buffer, pos, pDCB->DevMode, EN_DISCONNECT_); |
| if ((olddevmode & EN_DISCONNECT_) == (pDCB->DevMode & EN_DISCONNECT_)) needs_inquiry--; |
| YESNO (buffer, pos, pDCB->DevMode, SEND_START_); |
| needs_inquiry++; |
| YESNO (buffer, 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 (buffer, 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 = strsep (*pos, " \t\n:=,;."); |
| } |
| else pos = strsep (*pos, " \t\n:=,;."); |
| if (!*pos) goto ok; |
| |
| /* Sync Speed in MHz */ |
| if (*pos != '-') |
| { |
| SCANF (buffer, 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 = strsep (*pos, " \t\n:=,;"); |
| if (!*pos) goto ok; |
| }; |
| if (*pos == 'M') pos = strsep (*pos, " \t\n:=,;"); |
| if (pDCB->NegoPeriod != olddevmode) needs_inquiry++; |
| } |
| else pos = strsep (*pos, " \t\n:=,;"); |
| /* dc390_updateDCB (pACB, pDCB); */ |
| if (!*pos) goto ok; |
| |
| olddevmode = pDCB->SyncOffset; |
| /* SyncOffs */ |
| if (*pos != '-') |
| { |
| SCANF (buffer, pos, p0, dum, 0, 0x0f); |
| pDCB->SyncOffset = dum; |
| if (pDCB->SyncOffset > olddevmode) needs_inquiry++; |
| } |
| else pos = strsep (*pos, " \t\n:=,;"); |
| if (!*pos) goto ok; |
| dc390_updateDCB (pACB, pDCB); |
| |
| //olddevmode = pDCB->MaxCommand; |
| /* MaxCommand (Tags) */ |
| if (*pos != '-') |
| { |
| SCANF (buffer, 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 = strsep (*pos, " \t\n:=,;"); |
| |
| } |
| 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 (buffer, pos, p0, pACB->pScsiHost->max_id, "MAXID", 8); |
| SEARCH (buffer, pos, p0, pACB->pScsiHost->max_lun, "MAXLUN", 8); |
| SEARCH (buffer, pos, p0, newadaptid, "ADAPTERID", 7); |
| SEARCH (buffer, pos, p0, pACB->TagMaxNum, "TAGMAXNUM", 32); |
| SEARCH (buffer, pos, p0, pACB->ACBFlag, "ACBFLAG", 255); |
| SEARCH3 (buffer, pos, p0, dum, "GLITCHEATER", 40, 1000, "NS"); |
| SEARCH3 (buffer, pos, p0, pACB->sel_timeout, "SELTIMEOUT", 400, 163, "MS"); |
| SEARCH3 (buffer, 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: |
| DC390_UNLOCK_ACB; |
| if (needs_inquiry) |
| { dc390_updateDCB (pACB, pDCB); dc390_inquiry (pACB, pDCB); }; |
| DC390_UNLOCK_IO(pACB.pScsiHost); |
| return (length); |
| |
| einv2: |
| pos = p0; |
| einv: |
| DC390_UNLOCK_ACB; |
| DC390_UNLOCK_IO(pACB.pScsiHost); |
| 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(pACB.pScsiHost); |
| }; |
| return (length); |
| |
| dump: |
| { |
| dc390_dumpinfo (pACB, 0, 0); |
| DC390_UNLOCK_ACB; |
| DC390_UNLOCK_IO(pACB.pScsiHost); |
| } |
| return (length); |
| |
| inquiry: |
| { |
| pos = strsep (*pos, " \t\n.:;="); 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 %i\n", |
| dev, pDCB->TargetID, pDCB->TargetLUN); |
| DC390_UNLOCK_ACB; |
| dc390_inquiry (pACB, pDCB); |
| DC390_UNLOCK_IO(pACB.pScsiHost); |
| }; |
| return (length); |
| |
| remove: |
| { |
| pos = strsep (*pos, " \t\n.:;="); 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 %i\n", |
| 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(pACB.pScsiHost); |
| }; |
| return (length); |
| |
| add: |
| { |
| int id, lun; |
| pos = strsep (*pos, " \t\n.:;="); |
| if (*pos) { SCANF (buffer, pos, p0, id, 0, 7); } else goto einv; |
| if (*pos) { SCANF (buffer, pos, p0, lun, 0, 7); } else goto einv; |
| pDCB = dc390_findDCB (pACB, id, lun); |
| if (pDCB) { printk ("DC390: ADD: Device already existing\n"); goto einv; }; |
| dc390_initDCB (pACB, &pDCB, id, lun); |
| DC390_UNLOCK_ACB; |
| dc390_inquiry (pACB, pDCB); |
| DC390_UNLOCK_IO(pACB.pScsiHost); |
| }; |
| return (length); |
| |
| start: |
| { |
| int id, lun; |
| pos = strsep (*pos, " \t\n.:;="); |
| if (*pos) { SCANF (buffer, pos, p0, id, 0, 7); } else goto einv; |
| if (*pos) { SCANF (buffer, 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(pACB.pScsiHost); |
| }; |
| 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(pACB.pScsiHost); |
| 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 %s\n", DC390_VERSION); |
| |
| DC390_LOCK_ACB; |
| |
| SPRINTF("SCSI Host Nr %i, ", shpnt->host_no); |
| SPRINTF("%s Adapter Nr %i\n", dc390_adapname, pACB->AdapterIndex); |
| SPRINTF("IOPortBase 0x%04x, ", pACB->IOPortBase); |
| SPRINTF("IRQ %02i\n", pACB->IRQLevel); |
| |
| SPRINTF("MaxID %i, MaxLUN %i, ", shpnt->max_id, shpnt->max_lun); |
| SPRINTF("AdapterID %i, SelTimeout %i ms, DelayReset %i s\n", |
| 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 ns\n", |
| 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 %i\n", |
| pACB->Cmds, pACB->CmdInQ, pACB->CmdOutOfSRB); |
| SPRINTF(" Lost arbitrations %i, Sel. connected %i, Connected: %s\n", |
| pACB->SelLost, pACB->SelConn, pACB->Connected? "Yes": "No"); |
| |
| SPRINTF("Nr of attached devices: %i, Nr of DCBs: %i\n", pACB->DeviceCnt, pACB->DCBCnt); |
| SPRINTF("Map of attached LUNs: %02x %02x %02x %02x %02x %02x %02x %02x\n", |
| 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 MaxCmd\n"); |
| |
| 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 (" %02i\n", 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 running\n"); |
| 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(" %s\n ", 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: shutdown\n"); |
| |
| 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): %p\n",\ |
| 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(host); |
| 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 %i\n",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(host); |
| 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 |