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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [scsi/] [tmscsim.c] - Rev 1765
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/*********************************************************************** * 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 * *************************************************************************/ /* $Id: tmscsim.c,v 1.1 2005-12-20 10:17:45 jcastillo Exp $ */ /* Enhancements and bugfixes by * * Kurt Garloff <kurt@garloff.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 * * competely reworked. Handle target ini- * * tiated SDTR correctly. * ***********************************************************************/ /* 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 /* 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 */ #ifdef MODULE # include <linux/module.h> #endif #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 "scsi.h" #include "hosts.h" #include "constants.h" #include "sd.h" #include <linux/stat.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. * TODO: Verify, if we are locked in every case! * 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/asm/spinlock.h */ #define LinuxVersionCode(v, p, s) (((v)<<16)+((p)<<8)+(s)) #if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,30) # include <linux/init.h> # include <asm/spinlock.h> #endif #if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,93) # define USE_SPINLOCKS 1 # define NEW_PCI 1 #else # undef NEW_PCI # if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,30) # define USE_SPINLOCKS 2 # endif #endif #ifdef USE_SPINLOCKS # if USE_SPINLOCKS == 3 /* both */ # if defined (__SMP__) || DEBUG_SPINLOCKS > 0 # define DC390_LOCKA_INIT { spinlock_t __unlocked = SPIN_LOCK_UNLOCKED; pACB->lock = __unlocked; }; # else # define DC390_LOCKA_INIT # endif spinlock_t dc390_drvlock = SPIN_LOCK_UNLOCKED; # define DC390_AFLAGS unsigned long aflags; # define DC390_IFLAGS unsigned long iflags; # define DC390_DFLAGS unsigned long dflags; # define DC390_LOCK_IO spin_lock_irqsave (&io_request_lock, iflags) # define DC390_UNLOCK_IO spin_unlock_irqrestore (&io_request_lock, iflags) # define DC390_LOCK_DRV spin_lock_irqsave (&dc390_drvlock, dflags) # define DC390_UNLOCK_DRV spin_unlock_irqrestore (&dc390_drvlock, dflags) # define DC390_LOCK_DRV_NI spin_lock (&dc390_drvlock) # define DC390_UNLOCK_DRV_NI spin_unlock (&dc390_drvlock) # define DC390_LOCK_ACB spin_lock_irqsave (&(pACB->lock), aflags) # define DC390_UNLOCK_ACB spin_unlock_irqrestore (&(pACB->lock), aflags) # define DC390_LOCK_ACB_NI spin_lock (&(pACB->lock)) # define DC390_UNLOCK_ACB_NI spin_unlock (&(pACB->lock)) //# define DC390_LOCKA_INIT spin_lock_init (&(pACB->lock)) # else # if USE_SPINLOCKS == 2 /* adapter specific locks */ # if defined (__SMP__) || DEBUG_SPINLOCKS > 0 # define DC390_LOCKA_INIT { spinlock_t __unlocked = SPIN_LOCK_UNLOCKED; pACB->lock = __unlocked; }; # else # define DC390_LOCKA_INIT # endif spinlock_t dc390_drvlock = SPIN_LOCK_UNLOCKED; # define DC390_AFLAGS unsigned long aflags; # define DC390_IFLAGS # define DC390_DFLAGS unsigned long dflags; # define DC390_LOCK_IO /* spin_lock_irqsave (&io_request_lock, iflags) */ # define DC390_UNLOCK_IO /* spin_unlock_irqrestore (&io_request_lock, iflags) */ # define DC390_LOCK_DRV spin_lock_irqsave (&dc390_drvlock, dflags) # define DC390_UNLOCK_DRV spin_unlock_irqrestore (&dc390_drvlock, dflags) # define DC390_LOCK_DRV_NI spin_lock (&dc390_drvlock) # define DC390_UNLOCK_DRV_NI spin_unlock (&dc390_drvlock) # define DC390_LOCK_ACB spin_lock_irqsave (&(pACB->lock), aflags) # define DC390_UNLOCK_ACB spin_unlock_irqrestore (&(pACB->lock), aflags) # define DC390_LOCK_ACB_NI spin_lock (&(pACB->lock)) # define DC390_UNLOCK_ACB_NI spin_unlock (&(pACB->lock)) //# define DC390_LOCKA_INIT spin_lock_init (&(pACB->lock)) # else /* USE_SPINLOCKS == 1: global lock io_request_lock */ # define DC390_AFLAGS # define DC390_IFLAGS unsigned long iflags; # define DC390_DFLAGS unsigned long dflags; spinlock_t dc390_drvlock = SPIN_LOCK_UNLOCKED; # define DC390_LOCK_IO spin_lock_irqsave (&io_request_lock, iflags) # define DC390_UNLOCK_IO spin_unlock_irqrestore (&io_request_lock, iflags) # define DC390_LOCK_DRV spin_lock_irqsave (&dc390_drvlock, dflags) # define DC390_UNLOCK_DRV spin_unlock_irqrestore (&dc390_drvlock, dflags) # define DC390_LOCK_DRV_NI spin_lock (&dc390_drvlock) # define DC390_UNLOCK_DRV_NI spin_unlock (&dc390_drvlock) # define DC390_LOCK_ACB /* DC390_LOCK_IO */ # define DC390_UNLOCK_ACB /* DC390_UNLOCK_IO */ # define DC390_LOCK_ACB_NI /* spin_lock (&(pACB->lock)) */ # define DC390_UNLOCK_ACB_NI /* spin_unlock (&(pACB->lock)) */ # define DC390_LOCKA_INIT /* DC390_LOCKA_INIT */ # endif /* 2 */ # endif /* 3 */ #else /* USE_SPINLOCKS undefined */ # define DC390_AFLAGS unsigned long aflags; # define DC390_IFLAGS unsigned long iflags; # define DC390_DFLAGS unsigned long dflags; # define DC390_LOCK_IO save_flags (iflags); cli () # define DC390_UNLOCK_IO restore_flags (iflags) # define DC390_LOCK_DRV save_flags (dflags); cli () # define DC390_UNLOCK_DRV restore_flags (dflags) # define DC390_LOCK_DRV_NI # define DC390_UNLOCK_DRV_NI # define DC390_LOCK_ACB save_flags (aflags); cli () # define DC390_UNLOCK_ACB restore_flags (aflags) # define DC390_LOCK_ACB_NI # define DC390_UNLOCK_ACB_NI # define DC390_LOCKA_INIT #endif /* def */ /* These macros are used for uniform access to 2.0.x and 2.1.x PCI config space*/ #ifdef NEW_PCI # define PDEV pdev # define PDEVDECL struct pci_dev *pdev # define PDEVDECL0 struct pci_dev *pdev = NULL # define PDEVDECL1 struct pci_dev *pdev # define PDEVSET pACB->pdev=pdev # define PDEVSET1 pdev=pACB->pdev # define PCI_WRITE_CONFIG_BYTE(pd, rv, bv) pci_write_config_byte (pd, rv, bv) # define PCI_READ_CONFIG_BYTE(pd, rv, bv) pci_read_config_byte (pd, rv, bv) # define PCI_WRITE_CONFIG_WORD(pd, rv, bv) pci_write_config_word (pd, rv, bv) # define PCI_READ_CONFIG_WORD(pd, rv, bv) pci_read_config_word (pd, rv, bv) # define PCI_BUS_DEV pdev->bus->number, pdev->devfn # define PCI_PRESENT pci_present () # define PCI_SET_MASTER pci_set_master (pdev) # define PCI_FIND_DEVICE(vend, id) (pdev = pci_find_device (vend, id, pdev)) # define PCI_GET_IO_AND_IRQ io_port = pdev->base_address[0] & PCI_BASE_ADDRESS_IO_MASK; irq = pdev->irq #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 ); 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, PSCSICMD cmd ); 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 UCHAR dc390_adapterCnt = 0; static UCHAR dc390_CurrSyncOffset = 0; static ULONG dc390_lastabortedpid = 0; static ULONG dc390_laststatus = 0; #ifndef CONFIG_SCSI_DC390T_NOGENSUPP /* Startup values, to be overriden on the commandline */ int tmscsim[] = {7, 1 /* 8MHz */, 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 */}; # if defined(MODULE) && LINUX_VERSION_CODE >= LinuxVersionCode(2,1,30) MODULE_PARM(tmscsim, "1-5i"); MODULE_PARM_DESC(tmscsim, "Host SCSI ID, Speed (0=10MHz), Device Flags, Adapter Flags, Max Tags (log2(tags)-1)"); # endif #endif /* CONFIG_SCSI_DC390T_NOGENSUPP */ #if defined(MODULE) && LINUX_VERSION_CODE >= LinuxVersionCode(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_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}; struct proc_dir_entry DC390_proc_scsi_tmscsim ={ PROC_SCSI_DC390T, 7 ,"tmscsim", S_IFDIR | S_IRUGO | S_IXUGO, 2 }; /*********************************************************************** * 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); } #ifndef CONFIG_SCSI_DC390T_NOGENSUPP static void __init dc390_EEpromDefaults (UCHAR index) { PUCHAR ptr; UCHAR id; ptr = (PUCHAR) dc390_eepromBuf[index]; /* Adapter Settings */ ptr[EE_ADAPT_SCSI_ID] = (UCHAR)tmscsim[0]; /* Adapter ID */ ptr[EE_MODE2] = (UCHAR)tmscsim[3]; ptr[EE_DELAY] = 0; /* ?? */ ptr[EE_TAG_CMD_NUM] = (UCHAR)tmscsim[4]; /* Tagged Comds */ /* Device Settings */ for (id = 0; id < MAX_SCSI_ID; id++) { ptr[id<<2] = (UCHAR)tmscsim[2]; /* EE_MODE1 */ ptr[(id<<2) + 1] = (UCHAR)tmscsim[1]; /* EE_Speed */ }; dc390_adapname = "AM53C974"; } static void __init dc390_checkparams (void) { PARSEDEBUG(printk(KERN_INFO "DC390: setup %08x %08x %08x %08x %08x\n", tmscsim[0],\ tmscsim[1], tmscsim[2], tmscsim[3], tmscsim[4]);) if (tmscsim[0] < 0 || tmscsim[0] > 7) /* modules-2.0.0 passes -1 as string */ { tmscsim[0] = 7; tmscsim[1] = 4; tmscsim[2] = 9; tmscsim[3] = 15; tmscsim[4] = 2; printk (KERN_INFO "DC390: Using safe settings.\n"); } else { /* if (tmscsim[0] < 0 || tmscsim[0] > 7) tmscsim[0] = 7; */ if (tmscsim[1] < 0 || tmscsim[1] > 7) tmscsim[1] = 4; if (tmscsim[4] < 0 || tmscsim[4] > 5) tmscsim[4] = 4; }; }; /* Override defaults on cmdline: * tmscsim: AdaptID, MaxSpeed (Index), DevMode (Bitmapped), AdaptMode (Bitmapped) */ void __init dc390_setup (char *str, int *ints) { int i; for (i = 0; i < ints[0]; i++) tmscsim[i] = ints[i+1]; if (ints[0] > 5) printk (KERN_NOTICE "DC390: ignore extra params!\n"); /* dc390_checkparams (); */ }; #endif /* CONFIG_SCSI_DC390T_NOGENSUPP */ 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 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); 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, Scsi_Cmnd *cmd) { PDCB pDCB = pACB->pLinkDCB; if (!pDCB) return 0; while (pDCB->UnitSCSIID != cmd->target || pDCB->UnitSCSILUN != cmd->lun) { pDCB = pDCB->pNextDCB; if (pDCB == pACB->pLinkDCB) { printk (KERN_WARNING "DC390: DCB not found (DCB=%08x, DCBmap[%2x]=%2x)\n", (int)pDCB, cmd->target, pACB->DCBmap[cmd->target]); return 0; } }; DCBDEBUG1( printk (KERN_DEBUG "DCB %08x (%02x,%02x) found.\n", \ (int)pDCB, pDCB->UnitSCSIID, pDCB->UnitSCSILUN);) return pDCB; }; static void dc390_QLinkcmd( PSCSICMD cmd, PDCB pDCB ) { PSCSICMD pcmd; if( !pDCB->QIORBCnt ) { pDCB->pQIORBhead = cmd; pDCB->pQIORBtail = cmd; pDCB->QIORBCnt++; cmd->next = NULL; } else { pcmd = pDCB->pQIORBtail; pcmd->next = cmd; pDCB->pQIORBtail = cmd; pDCB->QIORBCnt++; cmd->next = NULL; } } static __inline__ PSCSICMD dc390_Getcmd( PDCB pDCB ) { PSCSICMD pcmd; pcmd = pDCB->pQIORBhead; pDCB->pQIORBhead = pcmd->next; pcmd->next = NULL; pDCB->QIORBCnt--; return( pcmd ); } static __inline__ PSRB dc390_GetSRB( PACB pACB ) { PSRB pSRB; pSRB = pACB->pFreeSRB; if( pSRB ) { pACB->pFreeSRB = pSRB->pNextSRB; pSRB->pNextSRB = NULL; } return( pSRB ); } static __inline__ void dc390_RewaitSRB0( PDCB pDCB, PSRB pSRB ) { PSRB psrb1; if( (psrb1 = pDCB->pWaitingSRB) ) { pSRB->pNextSRB = psrb1; } else { pSRB->pNextSRB = NULL; pDCB->pWaitLast = pSRB; } pDCB->pWaitingSRB = pSRB; } static void dc390_RewaitSRB( PDCB pDCB, PSRB pSRB ) { PSRB psrb1; UCHAR bval; pDCB->GoingSRBCnt--; pDCB->pDCBACB->SelLost++; DEBUG0(printk(KERN_INFO "DC390: RewaitSRB (%p, %p) pid = %li\n", pDCB, pSRB, pSRB->pcmd->pid);) psrb1 = pDCB->pGoingSRB; if( pSRB == psrb1 ) { pDCB->pGoingSRB = psrb1->pNextSRB; } else { while( pSRB != psrb1->pNextSRB ) psrb1 = psrb1->pNextSRB; psrb1->pNextSRB = pSRB->pNextSRB; if( pSRB == pDCB->pGoingLast ) pDCB->pGoingLast = psrb1; } if( (psrb1 = pDCB->pWaitingSRB) ) { pSRB->pNextSRB = psrb1; pDCB->pWaitingSRB = pSRB; } else { pSRB->pNextSRB = NULL; pDCB->pWaitingSRB = pSRB; pDCB->pWaitLast = pSRB; } bval = pSRB->TagNumber; pDCB->TagMask &= (~(1 << bval)); /* Free TAG number */ } static void dc390_DoWaitingSRB( PACB pACB ) { PDCB ptr, ptr1; PSRB pSRB; if( !(pACB->pActiveDCB) && !(pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV) ) ) { ptr = pACB->pDCBRunRobin; if( !ptr ) { ptr = pACB->pLinkDCB; pACB->pDCBRunRobin = ptr; } ptr1 = ptr; for( ;ptr1; ) { pACB->pDCBRunRobin = ptr1->pNextDCB; if( !( ptr1->MaxCommand > ptr1->GoingSRBCnt ) || !( pSRB = ptr1->pWaitingSRB ) ) { if(pACB->pDCBRunRobin == ptr) break; ptr1 = ptr1->pNextDCB; } else { if( !dc390_StartSCSI(pACB, ptr1, pSRB) ) { ptr1->GoingSRBCnt++; if( ptr1->pWaitLast == pSRB ) { ptr1->pWaitingSRB = NULL; ptr1->pWaitLast = NULL; } else { ptr1->pWaitingSRB = pSRB->pNextSRB; } pSRB->pNextSRB = NULL; if( ptr1->pGoingSRB ) ptr1->pGoingLast->pNextSRB = pSRB; else ptr1->pGoingSRB = pSRB; ptr1->pGoingLast = pSRB; } break; } } } return; } static __inline__ void dc390_SRBwaiting( PDCB pDCB, PSRB pSRB) { if( pDCB->pWaitingSRB ) { pDCB->pWaitLast->pNextSRB = pSRB; pSRB->pNextSRB = NULL; } else { pDCB->pWaitingSRB = pSRB; } pDCB->pWaitLast = pSRB; } /*********************************************************************** * 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_SRBwaiting(pDCB, pSRB); goto SND_EXIT; } if( pDCB->pWaitingSRB ) { dc390_SRBwaiting(pDCB, pSRB); /* pSRB = GetWaitingSRB(pDCB); */ /* non-existent */ pSRB = pDCB->pWaitingSRB; pDCB->pWaitingSRB = pSRB->pNextSRB; pSRB->pNextSRB = NULL; } if( !dc390_StartSCSI(pACB, pDCB, pSRB) ) { pDCB->GoingSRBCnt++; if( pDCB->pGoingSRB ) { pDCB->pGoingLast->pNextSRB = pSRB; pDCB->pGoingLast = pSRB; } else { pDCB->pGoingSRB = pSRB; pDCB->pGoingLast = pSRB; } } else dc390_RewaitSRB0( pDCB, pSRB ); SND_EXIT: return; } /*********************************************************************** * 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; }; /*********************************************************************** * 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 *)) { Scsi_Cmnd *pcmd; PDCB pDCB; PSRB pSRB; DC390_AFLAGS PACB pACB = (PACB) cmd->host->hostdata; DEBUG0(/* if(pACB->scan_devices) */ \ printk(KERN_INFO "DC390: Queue Cmd=%02x,ID=%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; done(cmd); return( 0 ); } if( (pACB->scan_devices || cmd->cmnd[0] == TEST_UNIT_READY) && !(pACB->DCBmap[cmd->target] & (1 << cmd->lun)) ) { pACB->DCBmap[cmd->target] |= (1 << cmd->lun); pACB->scan_devices = 1; dc390_initDCB( pACB, &pDCB, cmd ); if (!pDCB) { printk (KERN_ERR "DC390: kmalloc for DCB failed, ID=%2x\n", cmd->target); DC390_UNLOCK_ACB; done(cmd); return(0); }; } 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; done(cmd); return(0); } else { pDCB = dc390_findDCB (pACB, cmd); if (!pDCB) { /* should never happen */ DC390_UNLOCK_ACB; done(cmd); return(0); }; } pACB->Cmds++; cmd->scsi_done = done; cmd->result = 0; if( pDCB->QIORBCnt ) /* Unsent commands ? */ { dc390_QLinkcmd( cmd, pDCB ); pcmd = dc390_Getcmd( pDCB ); /* Get first command */ pACB->CmdInQ++; } else pcmd = cmd; pSRB = dc390_GetSRB( pACB ); if( !pSRB ) { dc390_QLinkcmd( pcmd, pDCB ); /* Queue command at the end */ pACB->CmdOutOfSRB++; DC390_UNLOCK_ACB; return(0); } dc390_BuildSRB (pcmd, pDCB, pSRB); dc390_SendSRB( pACB, pSRB ); DC390_UNLOCK_ACB; DEBUG1(printk (KERN_DEBUG " ... command (%02x) queued successfully.\n", pcmd->cmnd[0]);) return(0); } static void dc390_DoNextCmd( PACB pACB, PDCB pDCB ) { Scsi_Cmnd *pcmd; PSRB pSRB; if( pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV) ) return; pcmd = dc390_Getcmd( pDCB ); pSRB = dc390_GetSRB( pACB ); if( !pSRB ) dc390_QLinkcmd( pcmd, pDCB ); else { dc390_BuildSRB (pcmd, pDCB, pSRB); dc390_SendSRB( pACB, pSRB ); }; } /* We ignore mapping problems, as we expect everybody to respect * valid partition tables. Waiting for complaints ;-) */ #ifdef CONFIG_SCSI_DC390T_TRADMAP /* * The next function, partsize(), is copied from scsicam.c. * * This is ugly code duplication, but I didn't find another way to solve it: * We want to respect the partition table and if it fails, we apply the * DC390 BIOS heuristic. Too bad, just calling scsicam_bios_param() doesn't do * the job, because we don't know, whether the values returned are from * the part. table or determined by setsize(). Unfortunately the setsize() * values differ from the ones chosen by the DC390 BIOS. * * Looking forward to seeing suggestions for a better solution! KG, 98/10/14 */ #include <asm/unaligned.h> /* * Function : static int partsize(struct buffer_head *bh, unsigned long * capacity,unsigned int *cyls, unsigned int *hds, unsigned int *secs); * * Purpose : to determine the BIOS mapping used to create the partition * table, storing the results in *cyls, *hds, and *secs * * Returns : -1 on failure, 0 on success. * */ static int partsize(struct buffer_head *bh, unsigned long capacity, unsigned int *cyls, unsigned int *hds, unsigned int *secs) { struct partition *p, *largest = NULL; int i, largest_cyl; int cyl, ext_cyl, end_head, end_cyl, end_sector; unsigned int logical_end, physical_end, ext_physical_end; if (*(unsigned short *) (bh->b_data+510) == 0xAA55) { for (largest_cyl = -1, p = (struct partition *) (0x1BE + bh->b_data), i = 0; i < 4; ++i, ++p) { if (!p->sys_ind) continue; cyl = p->cyl + ((p->sector & 0xc0) << 2); if (cyl > largest_cyl) { largest_cyl = cyl; largest = p; } } } if (largest) { end_cyl = largest->end_cyl + ((largest->end_sector & 0xc0) << 2); end_head = largest->end_head; end_sector = largest->end_sector & 0x3f; physical_end = end_cyl * (end_head + 1) * end_sector + end_head * end_sector + end_sector; /* This is the actual _sector_ number at the end */ logical_end = get_unaligned(&largest->start_sect) + get_unaligned(&largest->nr_sects); /* This is for >1023 cylinders */ ext_cyl= (logical_end-(end_head * end_sector + end_sector)) /(end_head + 1) / end_sector; ext_physical_end = ext_cyl * (end_head + 1) * end_sector + end_head * end_sector + end_sector; if ((logical_end == physical_end) || (end_cyl==1023 && ext_physical_end==logical_end)) { *secs = end_sector; *hds = end_head + 1; *cyls = capacity / ((end_head + 1) * end_sector); return 0; } } return -1; } /*********************************************************************** * Function: * DC390_bios_param * * Description: * Return the disk geometry for the given SCSI device. * Respect the partition table, otherwise try own heuristic * * Note: * In contrary to other externally callable funcs (DC390_), we don't lock ***********************************************************************/ int DC390_bios_param (Disk *disk, kdev_t devno, int geom[]) { int heads, sectors, cylinders; PACB pACB = (PACB) disk->device->host->hostdata; struct buffer_head *bh; int ret_code = -1; int size = disk->capacity; if ((bh = bread(MKDEV(MAJOR(devno), MINOR(devno)&~0xf), 0, 1024))) { /* try to infer mapping from partition table */ ret_code = partsize (bh, (unsigned long) size, (unsigned int *) geom + 2, (unsigned int *) geom + 0, (unsigned int *) geom + 1); brelse (bh); } if (ret_code == -1) { heads = 64; sectors = 32; cylinders = size / (heads * sectors); if ( (pACB->Gmode2 & GREATER_1G) && (cylinders > 1024) ) { heads = 255; sectors = 63; cylinders = size / (heads * sectors); } geom[0] = heads; geom[1] = sectors; geom[2] = cylinders; } return (0); } #else int DC390_bios_param (Disk *disk, kdev_t devno, int geom[]) { return scsicam_bios_param (disk, devno, geom); }; #endif void dc390_dumpinfo (PACB pACB, PDCB pDCB, PSRB pSRB) { USHORT pstat; PDEVDECL1; if (pSRB) { printk ("DC390: SRB: Xferred %08lx, Remain %08lx, State %08lx, 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): %08lx\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); 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; ULONG count, i; PSCSICMD pcmd, pcmd1; int status; ULONG sbac; DC390_AFLAGS PACB pACB = (PACB) cmd->host->hostdata; DC390_LOCK_ACB; pDCB = dc390_findDCB (pACB, cmd); /* abort() is too buggy 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) */ if (pDCB) pSRB = pDCB->pActiveSRB; else pSRB = 0; printk ("DC390: Abort command (pid %li, DCB %p, SRB %p)\n", cmd->pid, pDCB, pSRB); dc390_dumpinfo (pACB, pDCB, pSRB); if( !pDCB ) goto NOT_RUN; if( pDCB->QIORBCnt ) { pcmd = pDCB->pQIORBhead; if( pcmd == cmd ) { pDCB->pQIORBhead = pcmd->next; pcmd->next = NULL; pDCB->QIORBCnt--; status = SCSI_ABORT_SUCCESS; goto ABO_X; } for( count = pDCB->QIORBCnt, i=0; i<count-1; i++) { if( pcmd->next == cmd ) { pcmd1 = pcmd->next; pcmd->next = pcmd1->next; pcmd1->next = NULL; pDCB->QIORBCnt--; status = SCSI_ABORT_SUCCESS; goto ABO_X; } else { pcmd = pcmd->next; } } } /* Added 98/07/02 KG */ pSRB = pDCB->pActiveSRB; if (pSRB && pSRB->pcmd == cmd ) goto ON_GOING; pSRB = pDCB->pWaitingSRB; if( !pSRB ) goto ON_GOING; 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; /* No check for psrb == NULL ? */ IN_WAIT: pSRB->pNextSRB = pACB->pFreeSRB; pACB->pFreeSRB = pSRB; cmd->next = NULL; status = SCSI_ABORT_SUCCESS; goto ABO_X; } ON_GOING: 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 (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); }; dc390_lastabortedpid = cmd->pid; DC390_UNLOCK_ACB; //do_DC390_Interrupt (pACB->IRQLevel, 0, 0); cmd->scsi_done(cmd); 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->CtrlR3 = FAST_CLK; pDCB->CtrlR4 &= NEGATE_REQACKDATA | CTRL4_RESERVED | NEGATE_REQACK; pDCB->CtrlR4 |= pACB->glitch_cfg; pDCB = pDCB->pNextDCB; } while( pdcb != pDCB ); } static void dc390_RecoverSRB( PACB pACB ) { PDCB pDCB, pdcb; PSRB psrb, psrb2; ULONG 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 ); } /*********************************************************************** * Function : int DC390_reset (Scsi_Cmnd *cmd, ...) * * Purpose : perform a hard reset on the SCSI bus * * Inputs : cmd - command which caused the SCSI RESET * * Returns : 0 on success. ***********************************************************************/ int DC390_reset(Scsi_Cmnd *cmd, unsigned int resetFlags) { UCHAR bval; ULONG i; DC390_AFLAGS PACB pACB = (PACB) cmd->host->hostdata; printk(KERN_INFO "DC390: RESET ... "); DC390_LOCK_ACB; bval = DC390_read8 (CtrlReg1); bval |= DIS_INT_ON_SCSI_RST; DC390_write8 (CtrlReg1, bval); /* disable interrupt */ dc390_ResetSCSIBus( pACB ); /* Unlock ? */ for( i=0; i<600; i++ ) udelay(1000); DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); DC390_read8 (INT_Status); /* Reset Pending INT */ dc390_ResetDevParam( pACB ); dc390_DoingSRB_Done( pACB ); /* 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_DoWaitingSRB( pACB ); DC390_UNLOCK_ACB; printk("done\n"); return( SCSI_RESET_SUCCESS ); } #include "scsiiom.c" /*********************************************************************** * Function : static void dc390_initDCB() * * Purpose : initialize the internal structures for a given DCB * * Inputs : cmd - pointer to this scsi cmd request block structure ***********************************************************************/ void dc390_initDCB( PACB pACB, PDCB *ppDCB, PSCSICMD cmd ) { PEEprom prom; UCHAR index; PDCB pDCB; pDCB = kmalloc (sizeof(DC390_DCB), GFP_ATOMIC); DCBDEBUG(printk (KERN_INFO "DC390: alloc mem for DCB (ID %i, LUN %i): 0x%08x\n", \ cmd->target, cmd->lun, (int)pDCB);) *ppDCB = pDCB; if (!pDCB) return; if( pACB->DCBCnt == 0 ) { pACB->pLinkDCB = pDCB; pACB->pDCBRunRobin = pDCB; } else { pACB->pLastDCB->pNextDCB = pDCB; }; pACB->DCBCnt++; pACB->pLastDCB = pDCB; pDCB->pNextDCB = pACB->pLinkDCB; pDCB->pDCBACB = pACB; pDCB->QIORBCnt = 0; pDCB->UnitSCSIID = cmd->target; pDCB->UnitSCSILUN = cmd->lun; pDCB->pWaitingSRB = NULL; pDCB->pGoingSRB = NULL; pDCB->GoingSRBCnt = 0; pDCB->pActiveSRB = NULL; pDCB->TagMask = 0; pDCB->MaxCommand = 1; index = pACB->AdapterIndex; pDCB->DCBFlag = 0; prom = (PEEprom) &dc390_eepromBuf[index][cmd->target << 2]; pDCB->DevMode = prom->EE_MODE1; pDCB->SyncMode = 0; dc390_updateDCB(pACB, pDCB); 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; } /*********************************************************************** * Function : static void dc390_updateDCB() * * Purpose : Set the configuration dependent DCB parameters ***********************************************************************/ void dc390_updateDCB (PACB pACB, PDCB pDCB) { pDCB->IdentifyMsg = IDENTIFY (pDCB->DevMode & EN_DISCONNECT_, pDCB->UnitSCSILUN); if (pDCB->DevMode & TAG_QUEUEING_) pDCB->SyncMode &= EN_TAG_QUEUEING | SYNC_NEGO_DONE | EN_ATN_STOP; else pDCB->SyncMode &= SYNC_NEGO_DONE | EN_ATN_STOP; if( pDCB->DevMode & SYNC_NEGO_ && (!(pDCB->UnitSCSILUN) || dc390_CurrSyncOffset) ) 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->DeviceCnt; 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 ) { ULONG 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; 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->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 = pACB->SelLost = 0; } /*********************************************************************** * 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 used_irq = 0, dstate; int i; pACB = (PACB) psh->hostdata; for ( pACB2 = dc390_pACB_start; pACB2 ; ) { if( pACB2->IRQLevel == Irq ) { used_irq = 1; break; } else pACB2 = pACB2->pNextACB; } 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( !used_irq ) { if( (i = request_irq(Irq, do_DC390_Interrupt, DC390_IRQ, "tmscsim", NULL) )) { printk(KERN_ERR "DC390: register IRQ error!\n"); 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 ); /* Unlock before ? */ for( i=0; i<600; 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 (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 period; printk (KERN_INFO "DC390_init: No EEPROM found!\n"); printk (KERN_INFO "DC390_init: Trying default EEPROM settings:\n"); dc390_checkparams (); period = dc390_clock_period1[tmscsim[1]]; printk (KERN_INFO "DC390: Used defaults: AdaptID=%i, SpeedIdx=%i (%i.%i MHz)," " DevMode=0x%02x, AdaptMode=0x%02x, TaggedCmnds=%i (%i)\n", tmscsim[0], tmscsim[1], 40 / period, ((40%period)*10 + period/2) / period, (UCHAR)tmscsim[2], (UCHAR)tmscsim[3], tmscsim[4], 2 << (tmscsim[4])); dc390_EEpromDefaults (index); #endif }; psh = scsi_register( psht, sizeof(DC390_ACB) ); if( !psh ) return( -1 ); 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)) { 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) psht->proc_dir = &DC390_proc_scsi_tmscsim; 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); printk ("DC390: Unsetting DsCn, Sync and TagQ!\n"); if (pDCB) { pDCB->DevMode &= ~(SYNC_NEGO_ | TAG_QUEUEING_ | EN_DISCONNECT_ ); dc390_updateDCB (pACB, pDCB); }; }; kfree (cmd->buffer); kfree (cmd); }; void dc390_inquiry (PACB pACB, PDCB pDCB) { char* buffer; Scsi_Cmnd* cmd; buffer = kmalloc (256, GFP_ATOMIC); cmd = kmalloc (sizeof (Scsi_Cmnd), GFP_ATOMIC); memset (buffer, 0, 256); memset (cmd, 0, sizeof(Scsi_Cmnd)); cmd->cmnd[0] = INQUIRY; cmd->cmnd[1] = (pDCB->UnitSCSILUN << 5) & 0xe0; cmd->cmnd[4] = 0xff; cmd->cmd_len = 6; cmd->old_cmd_len = 6; cmd->host = pACB->pScsiHost; cmd->target = pDCB->UnitSCSIID; cmd->lun = pDCB->UnitSCSILUN; cmd->serial_number = 1; 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; printk (KERN_INFO "DC390: Queue INQUIRY command to dev ID %02x LUN %02x\n", pDCB->UnitSCSIID, pDCB->UnitSCSILUN); DC390_queue_command (cmd, dc390_inquiry_done); }; /******************************************************************** * Function: dc390_set_info() * * Purpose: Change adapter config * * Strings are parsed similar to the output of tmscsim_proc_info () * '-' means no change *******************************************************************/ static int dc390_scanf (char** p1, char** p2, int* var) { *p2 = *p1; *var = simple_strtoul (*p2, p1, 10); if (*p2 == *p1) return -1; *p1 = strtok (0, " \t\n:=,;."); return 0; }; #define SCANF(p1, p2, var, min, max) \ if (dc390_scanf (&p1, &p2, &var)) goto einv; \ else if (var<min || var>max) goto einv2 static int dc390_yesno (char** p, char* var, char bmask) { switch (**p) { case 'Y': *var |= bmask; break; case 'N': *var &= ~bmask; break; case '-': break; default: return -1; } *p = strtok (0, " \t\n:=,;"); return 0; }; #define YESNO(p, var, bmask) \ if (dc390_yesno (&p, &var, bmask)) goto einv; \ else dc390_updateDCB (pACB, pDCB); \ if (!p) goto ok static int dc390_search (char **p1, char **p2, char *var, char* txt, int max, int scale, char* ign) { int dum; if (! memcmp (*p1, txt, strlen(txt))) { *p2 = strtok (0, " \t\n:=,;"); if (!*p2) return -1; dum = simple_strtoul (*p2, p1, 10); if (*p2 == *p1) return -1; if (dum >= 0 && dum <= max) { *var = (dum * 100) / scale; } else return -2; *p1 = strtok (0, " \t\n:=,;"); if (*ign && *p1 && strlen(*p1) >= strlen(ign) && !(memcmp (*p1, ign, strlen(ign)))) *p1 = strtok (0, " \t\n:=,;"); } return 0; }; #define SEARCH(p1, p2, var, txt, max) \ if (dc390_search (&p1, &p2, (PUCHAR)(&var), txt, max, 100, "")) goto einv2; \ else if (!p1) goto ok2 #define SEARCH2(p1, p2, var, txt, max, scale) \ if (dc390_search (&p1, &p2, &var, txt, max, scale, "")) goto einv2; \ else if (!p1) goto ok2 #define SEARCH3(p1, p2, var, txt, max, scale, ign) \ if (dc390_search (&p1, &p2, &var, txt, max, scale, ign)) goto einv2; \ else if (!p1) goto ok2 #ifdef DC390_PARSEDEBUG static char _prstr[256]; char* prstr (char* p, char* e) { char* c = _prstr; while (p < e) if (*p == 0) { *c++ = ':'; p++; } else if (*p == 10) { *c++ = '\\'; *c++ = 'n'; p++; } else *c++ = *p++; *c = 0; return _prstr; }; #endif int dc390_set_info (char *buffer, int length, PACB pACB) { char *pos = buffer, *p0 = buffer; char needs_inquiry = 0; int dum = 0; char dev; PDCB pDCB = pACB->pLinkDCB; DC390_IFLAGS DC390_AFLAGS pos[length] = 0; DC390_LOCK_IO; DC390_LOCK_ACB; /* UPPERCASE */ /* Don't use kernel toupper, because of 2.0.x bug: ctmp unexported */ while (*pos) { if (*pos >='a' && *pos <= 'z') *pos = *pos + 'A' - 'a'; pos++; }; /* We should protect __strtok ! */ /* spin_lock (strtok_lock); */ /* Remove WS */ pos = strtok (buffer, " \t:\n=,;"); if (!pos) goto ok; next: if (!memcmp (pos, "RESET", 5)) goto reset; else if (!memcmp (pos, "INQUIRY", 7)) goto inquiry; else if (!memcmp (pos, "REMOVE", 6)) goto remove; if (isdigit (*pos)) { /* Device config line */ int dev, id, lun; char* pdec; char olddevmode; SCANF (pos, p0, dev, 0, pACB->DCBCnt-1); if (pos) { SCANF (pos, p0, id, 0, 7); } else goto einv; if (pos) { SCANF (pos, p0, lun, 0, 7); } else goto einv; if (!pos) goto einv; PARSEDEBUG(printk (KERN_INFO "DC390: config line %i %i %i:\"%s\"\n", dev, id, lun, prstr (pos, &buffer[length]));) pDCB = pACB->pLinkDCB; for (dum = 0; dum < dev; dum++) pDCB = pDCB->pNextDCB; /* Sanity Check */ if (pDCB->UnitSCSIID != id || pDCB->UnitSCSILUN != lun) { printk (KERN_ERR "DC390: no such device: Idx=%02i ID=%02i LUN=%02i\n", dev, id, lun); goto einv2; }; olddevmode = pDCB->DevMode; YESNO (pos, pDCB->DevMode, PARITY_CHK_); needs_inquiry++; YESNO (pos, pDCB->DevMode, SYNC_NEGO_); if ((olddevmode & SYNC_NEGO_) == (pDCB->DevMode & SYNC_NEGO_)) needs_inquiry--; needs_inquiry++; YESNO (pos, pDCB->DevMode, EN_DISCONNECT_); if ((olddevmode & EN_DISCONNECT_) == (pDCB->DevMode & EN_DISCONNECT_)) needs_inquiry--; YESNO (pos, pDCB->DevMode, SEND_START_); needs_inquiry++; YESNO (pos, pDCB->DevMode, TAG_QUEUEING_); if ((olddevmode & TAG_QUEUEING_) == (pDCB->DevMode & TAG_QUEUEING_)) needs_inquiry--; YESNO (pos, pDCB->SyncMode, EN_ATN_STOP); dc390_updateDCB (pACB, pDCB); if (!pos) goto ok; olddevmode = pDCB->NegoPeriod; /* Look for decimal point (Speed) */ pdec = pos; while (pdec++ < &buffer[length]) if (*pdec == '.') break; /* NegoPeriod */ if (*pos != '-') { SCANF (pos, p0, dum, 72, 800); pDCB->NegoPeriod = dum >> 2; if (pDCB->NegoPeriod != olddevmode) needs_inquiry++; if (!pos) goto ok; if (memcmp (pos, "NS", 2) == 0) pos = strtok (0, " \t\n:=,;."); } else pos = strtok (0, " \t\n:=,;."); if (!pos) goto ok; /* Speed: NegoPeriod */ if (*pos != '-') { SCANF (pos, p0, dum, 1, 13); pDCB->NegoPeriod = (1000/dum) >> 2; if (pDCB->NegoPeriod != olddevmode && !pos) needs_inquiry++; if (!pos) goto ok; /* decimal */ if (pos-1 == pdec) { int dumold = dum; dum = simple_strtoul (pos, &p0, 10) * 10; for (; p0-pos > 1; p0--) dum /= 10; pDCB->NegoPeriod = (100000/(100*dumold + dum)) >> 2; if (pDCB->NegoPeriod < 19) pDCB->NegoPeriod = 19; if (pDCB->NegoPeriod != olddevmode) needs_inquiry++; pos = strtok (0, " \t\n:=,;"); if (!pos) goto ok; }; if (*pos == 'M') pos = strtok (0, " \t\n:=,;"); } else pos = strtok (0, " \t\n:=,;"); /* dc390_updateDCB (pACB, pDCB); */ if (!pos) goto ok; olddevmode = pDCB->SyncOffset; /* SyncOffs */ if (*pos != '-') { SCANF (pos, p0, dum, 0, 0x0f); pDCB->SyncOffset = dum; if (pDCB->SyncOffset > olddevmode) needs_inquiry++; } else pos = strtok (0, " \t\n:=,;"); dc390_updateDCB (pACB, pDCB); } else { char* p1 = pos; UCHAR dum; PARSEDEBUG(printk (KERN_INFO "DC390: chg adapt cfg \"%s\"\n", prstr (pos, &buffer[length]));) dum = GLITCH_TO_NS (pACB->glitch_cfg); /* Adapter setting */ SEARCH (pos, p0, pACB->pScsiHost->max_id, "MAXID", 8); SEARCH (pos, p0, pACB->pScsiHost->max_lun, "MAXLUN", 8); SEARCH (pos, p0, pACB->pScsiHost->this_id, "ADAPTERID", 7); SEARCH (pos, p0, pACB->TagMaxNum, "TAGMAXNUM", 32); SEARCH (pos, p0, pACB->ACBFlag, "ACBFLAG", 255); SEARCH3 (pos, p0, dum, "GLITCHEATER", 40, 1000, "NS"); SEARCH3 (pos, p0, pACB->sel_timeout, "SELTIMEOUT", 400, 163, "MS"); ok2: pACB->glitch_cfg = NS_TO_GLITCH (dum); if (pACB->sel_timeout < 60) pACB->sel_timeout = 60; dum = 0; while (1 << dum <= pACB->TagMaxNum) dum ++; pACB->TagMaxNum &= (1 << --dum); if (pos == p1) goto einv; dc390_updateDCBs (pACB); } if (pos) goto next; ok: /* spin_unlock (strtok_lock); */ DC390_UNLOCK_ACB; if (needs_inquiry) { dc390_updateDCB (pACB, pDCB); dc390_inquiry (pACB, pDCB); }; DC390_UNLOCK_IO; return (length); einv2: pos = p0; einv: /* spin_unlock (strtok_lock); */ DC390_UNLOCK_ACB; DC390_UNLOCK_IO; printk (KERN_WARNING "DC390: parse error near \"%s\"\n", (pos? pos: "NULL")); return (-EINVAL); reset: { Scsi_Cmnd cmd; cmd.host = pACB->pScsiHost; printk (KERN_WARNING "DC390: Driver reset requested!\n"); DC390_UNLOCK_ACB; DC390_reset (&cmd, 0); DC390_UNLOCK_IO; }; return (length); inquiry: { pos = strtok (0, " \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->UnitSCSIID, pDCB->UnitSCSILUN); DC390_UNLOCK_ACB; dc390_inquiry (pACB, pDCB); DC390_UNLOCK_IO; }; return (length); remove: { pos = strtok (0, " \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->UnitSCSIID, pDCB->UnitSCSILUN); dc390_remove_dev (pACB, pDCB); DC390_UNLOCK_ACB; DC390_UNLOCK_IO; }; return (length); einv_dev: printk (KERN_WARNING "DC390: Ignore cmnd to illegal Dev(Idx) %i. Valid range: 0 - %i.\n", dev, pACB->DCBCnt - 1); DC390_UNLOCK_ACB; DC390_UNLOCK_IO; return (-EINVAL); } #undef SEARCH #undef YESNO #undef SCANF /******************************************************************** * Function: DC390_proc_info(char* buffer, char **start, * off_t offset, int length, int hostno, int inout) * * Purpose: return SCSI Adapter/Device Info * * Input: buffer: Pointer to a buffer where to write info * start : * offset: * hostno: Host adapter index * inout : Read (=0) or set(!=0) info * * Output: buffer: contains info * length; length of info in buffer * * return value: length * ********************************************************************/ #undef SPRINTF #define SPRINTF(args...) pos += sprintf(pos, ## args) #define YESNO(YN) \ if (YN) SPRINTF(" Yes "); \ else SPRINTF(" No ") int DC390_proc_info (char *buffer, char **start, off_t offset, int length, int hostno, int inout) { int dev, spd, spd1; char *pos = buffer; PSH shpnt; PACB pACB; PDCB pDCB; 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("IRQLevel 0x%02x\n", pACB->IRQLevel); SPRINTF("MaxID %i, MaxLUN %i, ", shpnt->max_id, shpnt->max_lun); SPRINTF("AdapterID %i, SelTimeout %i ms\n", shpnt->this_id, (pACB->sel_timeout*164)/100); SPRINTF("TagMaxNum %i, Status %i, ACBFlag %i, 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 %li, Out of SRB conds %li\n", pACB->Cmds, pACB->CmdInQ, pACB->CmdOutOfSRB); SPRINTF(" Lost arbitrations %li\n", pACB->SelLost); SPRINTF("Nr of attached devices: %i, Nr of DCBs: %i\n", pACB->DeviceCnt, pACB->DCBCnt); SPRINTF("Idx ID LUN Prty Sync DsCn SndS TagQ STOP NegoPeriod SyncSpeed SyncOffs\n"); pDCB = pACB->pLinkDCB; for (dev = 0; dev < pACB->DCBCnt; dev++) { SPRINTF("%02i %02i %02i ", dev, pDCB->UnitSCSIID, pDCB->UnitSCSILUN); YESNO(pDCB->DevMode & PARITY_CHK_); YESNO(pDCB->SyncMode & SYNC_NEGO_DONE); YESNO(pDCB->DevMode & EN_DISCONNECT_); //YESNO(pDCB->SyncMode & EN_ATN_STOP); YESNO(pDCB->DevMode & SEND_START_); YESNO(pDCB->SyncMode & EN_TAG_QUEUEING); YESNO(pDCB->SyncMode & EN_ATN_STOP); 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\n", spd, spd1, (pDCB->SyncOffset & 0x0f)); } else SPRINTF(" (%03i ns)\n", (pDCB->NegoPeriod) << 2); /* Add more info ...*/ pDCB = pDCB->pNextDCB; } 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_DONE; 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); 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): 0x%08x\n",\ pDCB->UnitSCSIID, pDCB->UnitSCSILUN, (int)pDCB);) kfree (pDCB); pDCB = nDCB; } while (pDCB && pDCB != pACB->pLinkDCB); }; int DC390_release(struct Scsi_Host *host) { int irq_count; PACB pACB; DC390_AFLAGS DC390_IFLAGS #if USE_SPINLOCKS > 1 PACB pACB = (PACB)(host->hostdata); #endif DC390_LOCK_IO; DC390_LOCK_ACB; dc390_shutdown (host); if (host->irq != IRQ_NONE) { for (irq_count = 0, pACB = dc390_pACB_start; pACB; pACB = pACB->pNextACB) { if ( pACB->IRQLevel == host->irq ) ++irq_count; } if (irq_count == 1) { DEBUG0(printk(KERN_INFO "DC390: Free IRQ %i\n",host->irq);) free_irq(host->irq,NULL); } } release_region(host->io_port,host->n_io_port); dc390_freeDCBs (host); DC390_UNLOCK_ACB; DC390_UNLOCK_IO; return( 1 ); } Scsi_Host_Template driver_template = DC390_T; #include "scsi_module.c" #endif /* def MODULE */