* 2.1a 03/11/29 GL, KG Initial fixing for 2.6. Convert to *
* use the current PCI-mapping API, update *
* command-queuing. *
+ * 2.1b 04/04/13 GL Fix for 64-bit platforms *
+ * 2.1b1 04/01/31 GL (applied 05.04) Remove internal *
+ * command-queuing. *
+ * 2.1b2 04/02/01 CH (applied 05.04) Fix error-handling *
+ * 2.1c 04/05/23 GL Update to use the new pci_driver API, *
+ * some scsi EH updates, more cleanup. *
+ * 2.1d 04/05/27 GL Moved setting of scan_devices to *
+ * slave_alloc/_configure/_destroy, as *
+ * suggested by CH. *
***********************************************************************/
-/* 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
#endif
#define DCBDEBUG1(x) C_NOP
-/* Includes */
+#include <linux/config.h>
#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/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/blkdev.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <asm/io.h>
-#include "scsi.h"
-#include "hosts.h"
-#include <linux/stat.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
#include <scsi/scsicam.h>
+#include <scsi/scsi_tcq.h>
-#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;
- */
-#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
+#define DC390_BANNER "Tekram DC390/AM53C974"
+#define DC390_VERSION "2.1d 2004-05-27"
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,99) && defined(MODULE)
-static struct pci_device_id tmscsim_pci_tbl[] = {
- {
- .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
-
-#define USE_SPINLOCKS 1
-#define NEW_PCI 1
-
-#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 */
-
-/* These macros are used for uniform access to 2.0.x and 2.1.x PCI config space*/
-
-#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 (1)
-#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 do{io_port = pci_resource_start (pdev, 0); irq = pdev->irq;} while(0)
+#define PCI_DEVICE_ID_AMD53C974 PCI_DEVICE_ID_AMD_SCSI
#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);
-irqreturn_t 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);
-
-static int DC390_release(struct Scsi_Host *host);
-static int dc390_shutdown (struct Scsi_Host *host);
-
-
-//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;
+static void dc390_DataOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_DataIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+static void dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
+
+static void dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB );
+static void dc390_Disconnect( struct dc390_acb* pACB );
+static void dc390_Reselect( struct dc390_acb* pACB );
+static void dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB );
+static void dc390_ScsiRstDetect( struct dc390_acb* pACB );
+static void dc390_EnableMsgOut_Abort(struct dc390_acb*, struct dc390_srb*);
+static void dc390_dumpinfo(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB);
+static void dc390_ResetDevParam(struct dc390_acb* pACB);
+
+static u32 dc390_laststatus = 0;
+static u8 dc390_adapterCnt = 0;
/* Startup values, to be overriden on the commandline */
-int tmscsim[] = {-2, -2, -2, -2, -2, -2};
+static 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_param_array(tmscsim, int, NULL, 0);
MODULE_PARM_DESC(tmscsim, "Host SCSI ID, Speed (0=10MHz), Device Flags, Adapter Flags, Max Tags (log2(tags)-1), DelayReset (s)");
-# 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[]={
+static void *dc390_phase0[]={
dc390_DataOut_0,
dc390_DataIn_0,
dc390_Command_0,
dc390_Nop_1
};
-static PVOID dc390_phase1[]={
+static void *dc390_phase1[]={
dc390_DataOutPhase,
dc390_DataInPhase,
dc390_CommandPhase,
};
#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");
- }
-}
-
-
-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;
-}
-
-/* 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);
-}
-
+static u8 dc390_eepromBuf[MAX_ADAPTER_NUM][EE_LEN];
+static u8 dc390_clock_period1[] = {4, 5, 6, 7, 8, 10, 13, 20};
+static u8 dc390_clock_speed[] = {100,80,67,57,50, 40, 31, 20};
/***********************************************************************
* Functions for the management of the internal structures
* (DCBs, SRBs, Queueing)
*
**********************************************************************/
-static PDCB __inline__ dc390_findDCB ( PACB pACB, UCHAR id, UCHAR lun)
+static struct dc390_dcb __inline__ *dc390_findDCB ( struct dc390_acb* pACB, u8 id, u8 lun)
{
- PDCB pDCB = pACB->pLinkDCB; if (!pDCB) return 0;
+ struct dc390_dcb* pDCB = pACB->pLinkDCB; if (!pDCB) return NULL;
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;
- }
+ return NULL;
}
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 )
-{
- dc390_cmd_scp_t *cmdq = (dc390_cmd_scp_t *)&cmd->SCp;
-
- DEBUG0(printk ("DC390: Append cmd %li to Query\n", cmd->pid));
-
- list_add_tail(&cmdq->list, &pACB->cmdq);
- pACB->QueryCnt++;
- pACB->CmdOutOfSRB++;
-}
-
-
-/* Return next cmd from Query list */
-static PSCSICMD dc390_Query_get ( PACB pACB )
-{
- PSCSICMD pcmd;
- dc390_cmd_scp_t *cmdq;
- if (list_empty(&pACB->cmdq))
- return NULL;
-
- pcmd = (PSCSICMD) list_entry(pACB->cmdq.next, struct scsi_cmnd_list, scp.list);
- DEBUG0(printk ("DC390: Get cmd %li from Query\n", pcmd->pid));
- cmdq = (dc390_cmd_scp_t *)&pcmd->SCp;
- list_del(&cmdq->list);
- 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)
+static __inline__ void dc390_Free_insert (struct dc390_acb* pACB, struct dc390_srb* pSRB)
{
DEBUG0(printk ("DC390: Free SRB %p\n", pSRB));
pSRB->pNextSRB = pACB->pFreeSRB;
pACB->pFreeSRB = pSRB;
}
-
-/* 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)
+static __inline__ void dc390_Going_append (struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
{
pDCB->GoingSRBCnt++;
DEBUG0(printk("DC390: Append SRB %p to Going\n", pSRB));
pSRB->pNextSRB = NULL;
}
-static __inline__ void dc390_Going_remove (PDCB pDCB, PSRB pSRB)
+static __inline__ void dc390_Going_remove (struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
{
DEBUG0(printk("DC390: Remove SRB %p from Going\n", pSRB));
if (pSRB == pDCB->pGoingSRB)
pDCB->pGoingSRB = pSRB->pNextSRB;
else
{
- PSRB psrb = pDCB->pGoingSRB;
+ struct dc390_srb* psrb = pDCB->pGoingSRB;
while (psrb && psrb->pNextSRB != pSRB)
psrb = psrb->pNextSRB;
if (!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 )
+static struct scatterlist* dc390_sg_build_single(struct scatterlist *sg, void *addr, unsigned int length)
{
- 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);
- }
+ memset(sg, 0, sizeof(struct scatterlist));
+ sg->page = virt_to_page(addr);
+ sg->length = length;
+ sg->offset = (unsigned long)addr & ~PAGE_MASK;
+ return sg;
}
-
/* Create pci mapping */
-static int dc390_pci_map (PSRB pSRB)
+static int dc390_pci_map (struct dc390_srb* pSRB)
{
int error = 0;
- Scsi_Cmnd *pcmd = pSRB->pcmd;
+ struct scsi_cmnd *pcmd = pSRB->pcmd;
struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev;
dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp));
+
/* Map sense buffer */
if (pSRB->SRBFlag & AUTO_REQSENSE) {
- sg_dma_address(&pSRB->Segmentx) = cmdp->saved_dma_handle =
- pci_map_page(pdev, virt_to_page(pcmd->sense_buffer),
- (unsigned long)pcmd->sense_buffer & ~PAGE_MASK, sizeof(pcmd->sense_buffer),
- DMA_FROM_DEVICE);
- pSRB->Segmentx.length = sizeof(pcmd->sense_buffer);
- pSRB->SGcount = 1;
- pSRB->pSegmentList = (PSGL) &pSRB->Segmentx;
+ pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->sense_buffer, sizeof(pcmd->sense_buffer));
+ pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1,
+ DMA_FROM_DEVICE);
+ cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList);
+
+ /* TODO: error handling */
+ if (pSRB->SGcount != 1)
+ error = 1;
DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __FUNCTION__, pcmd->sense_buffer, cmdp->saved_dma_handle));
- /* Make SG list */
+ /* Map SG list */
} else if (pcmd->use_sg) {
- pSRB->pSegmentList = (PSGL) pcmd->request_buffer;
- pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList,
- pcmd->use_sg,
- scsi_to_pci_dma_dir(pcmd->sc_data_direction));
+ pSRB->pSegmentList = (struct scatterlist *) pcmd->request_buffer;
+ pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, pcmd->use_sg,
+ pcmd->sc_data_direction);
/* TODO: error handling */
if (!pSRB->SGcount)
error = 1;
- DEBUG1(printk("%s(): Mapped SG %p with %d (%d) elements\n", __FUNCTION__, pcmd->request_buffer, pSRB->SGcount, pcmd->use_sg));
+ DEBUG1(printk("%s(): Mapped SG %p with %d (%d) elements\n",\
+ __FUNCTION__, pcmd->request_buffer, pSRB->SGcount, pcmd->use_sg));
/* Map single segment */
} else if (pcmd->request_buffer && pcmd->request_bufflen) {
- sg_dma_address(&pSRB->Segmentx) = cmdp->saved_dma_handle =
- pci_map_page(pdev, virt_to_page(pcmd->request_buffer),
- (unsigned long)pcmd->request_buffer & ~PAGE_MASK,
- pcmd->request_bufflen, scsi_to_pci_dma_dir(pcmd->sc_data_direction));
+ pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->request_buffer, pcmd->request_bufflen);
+ pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1,
+ pcmd->sc_data_direction);
+ cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList);
+
/* TODO: error handling */
- pSRB->Segmentx.length = pcmd->request_bufflen;
- pSRB->SGcount = 1;
- pSRB->pSegmentList = (PSGL) &pSRB->Segmentx;
+ if (pSRB->SGcount != 1)
+ error = 1;
DEBUG1(printk("%s(): Mapped request buffer %p at %x\n", __FUNCTION__, pcmd->request_buffer, cmdp->saved_dma_handle));
/* No mapping !? */
} else
pSRB->SGcount = 0;
+
return error;
}
/* Remove pci mapping */
-static void dc390_pci_unmap (PSRB pSRB)
+static void dc390_pci_unmap (struct dc390_srb* pSRB)
{
- Scsi_Cmnd* pcmd = pSRB->pcmd;
+ struct scsi_cmnd *pcmd = pSRB->pcmd;
struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev;
- dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp));
+ DEBUG1(dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp)));
if (pSRB->SRBFlag) {
- pci_unmap_page(pdev, cmdp->saved_dma_handle,
- sizeof(pcmd->sense_buffer), DMA_FROM_DEVICE);
+ pci_unmap_sg(pdev, &pSRB->Segmentx, 1, DMA_FROM_DEVICE);
DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle));
} else if (pcmd->use_sg) {
- pci_unmap_sg(pdev, pcmd->request_buffer, pcmd->use_sg,
- scsi_to_pci_dma_dir(pcmd->sc_data_direction));
+ pci_unmap_sg(pdev, pcmd->request_buffer, pcmd->use_sg, pcmd->sc_data_direction);
DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n", __FUNCTION__, pcmd->request_buffer, pcmd->use_sg));
} else if (pcmd->request_buffer && pcmd->request_bufflen) {
- pci_unmap_page(pdev,
- cmdp->saved_dma_handle,
- pcmd->request_bufflen,
- scsi_to_pci_dma_dir(pcmd->sc_data_direction));
+ pci_unmap_sg(pdev, &pSRB->Segmentx, 1, pcmd->sc_data_direction);
DEBUG1(printk("%s(): Unmapped request buffer at %x\n", __FUNCTION__, cmdp->saved_dma_handle));
}
}
-
-/***********************************************************************
- * 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)
+static void __inline__
+dc390_freetag (struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
{
- pSRB->pSRBDCB = pDCB;
- pSRB->pcmd = pcmd;
- //pSRB->ScsiCmdLen = pcmd->cmd_len;
- //memcpy (pSRB->CmdBlock, pcmd->cmnd, pcmd->cmd_len);
-
- 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;
- /* KG: deferred PCI mapping to dc390_StartSCSI */
+ if (pSRB->TagNumber != SCSI_NO_TAG) {
+ pDCB->TagMask &= ~(1 << pSRB->TagNumber); /* free tag mask */
+ pSRB->TagNumber = SCSI_NO_TAG;
+ }
}
-/* Put cmnd from Query to Waiting list and send next Waiting cmnd */
-static void dc390_Query_to_Waiting (PACB pACB)
+
+static int
+dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB )
{
- Scsi_Cmnd *pcmd;
- PSRB pSRB;
- PDCB pDCB;
+ struct scsi_cmnd *scmd = pSRB->pcmd;
+ struct scsi_device *sdev = scmd->device;
+ u8 cmd, disc_allowed, try_sync_nego;
+ char tag[2];
- if( pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV) )
- return;
+ pSRB->ScsiPhase = SCSI_NOP0;
- while (pACB->QueryCnt)
+ if (pACB->Connected)
{
- 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->device->id, pcmd->device->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 );
+ // Should not happen normally
+ printk (KERN_WARNING "DC390: Can't select when connected! (%08x,%02x)\n",
+ pSRB->SRBState, pSRB->SRBFlag);
+ pSRB->SRBState = SRB_READY;
+ pACB->SelConn++;
+ return 1;
}
-}
-
-/***********************************************************************
- * 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 ...
- *
- ***********************************************************************/
+ if (time_before (jiffies, pACB->pScsiHost->last_reset))
+ {
+ DEBUG0(printk ("DC390: We were just reset and don't accept commands yet!\n"));
+ return 1;
+ }
+ /* KG: Moved pci mapping here */
+ dc390_pci_map(pSRB);
+ /* TODO: error handling */
+ DC390_write8 (Scsi_Dest_ID, pDCB->TargetID);
+ DC390_write8 (Sync_Period, pDCB->SyncPeriod);
+ DC390_write8 (Sync_Offset, pDCB->SyncOffset);
+ DC390_write8 (CtrlReg1, pDCB->CtrlR1);
+ DC390_write8 (CtrlReg3, pDCB->CtrlR3);
+ DC390_write8 (CtrlReg4, pDCB->CtrlR4);
+ DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); /* Flush FIFO */
+ DEBUG1(printk (KERN_INFO "DC390: Start SCSI command: %02x (Sync:%02x)\n",\
+ scmd->cmnd[0], pDCB->SyncMode));
+
+ /* Don't disconnect on AUTO_REQSENSE, cause it might be an
+ * Contingent Allegiance Condition (6.6), where no tags should be used.
+ * All other have to be allowed to disconnect to prevent Incorrect
+ * Initiator Connection (6.8.2/6.5.2) */
+ /* Changed KG, 99/06/06 */
+ if (! (pSRB->SRBFlag & AUTO_REQSENSE))
+ disc_allowed = pDCB->DevMode & EN_DISCONNECT_;
+ else
+ disc_allowed = 0;
+
+ if ((pDCB->SyncMode & SYNC_ENABLE) && pDCB->TargetLUN == 0 && sdev->sdtr &&
+ (((scmd->cmnd[0] == REQUEST_SENSE || (pSRB->SRBFlag & AUTO_REQSENSE)) &&
+ !(pDCB->SyncMode & SYNC_NEGO_DONE)) || scmd->cmnd[0] == INQUIRY))
+ try_sync_nego = 1;
+ else
+ try_sync_nego = 0;
-int DC390_queue_command (Scsi_Cmnd *cmd, void (* done)(Scsi_Cmnd *))
+ pSRB->MsgCnt = 0;
+ cmd = SEL_W_ATN;
+ DC390_write8 (ScsiFifo, IDENTIFY(disc_allowed, pDCB->TargetLUN));
+ /* Change 99/05/31: Don't use tags when not disconnecting (BUSY) */
+ if ((pDCB->SyncMode & EN_TAG_QUEUEING) && disc_allowed && scsi_populate_tag_msg(scmd, tag)) {
+ DC390_write8(ScsiFifo, tag[0]);
+ pDCB->TagMask |= 1 << tag[1];
+ pSRB->TagNumber = tag[1];
+ DC390_write8(ScsiFifo, tag[1]);
+ DEBUG1(printk(KERN_INFO "DC390: Select w/DisCn for Cmd %li (SRB %p), block tag %02x\n", scmd->pid, pSRB, tag[1]));
+ cmd = SEL_W_ATN3;
+ } else {
+ /* No TagQ */
+//no_tag:
+ DEBUG1(printk(KERN_INFO "DC390: Select w%s/DisCn for Cmd %li (SRB %p), No TagQ\n", disc_allowed ? "" : "o", scmd->pid, pSRB));
+ }
+
+ pSRB->SRBState = SRB_START_;
+
+ if (try_sync_nego)
+ {
+ u8 Sync_Off = pDCB->SyncOffset;
+ DEBUG0(printk (KERN_INFO "DC390: NEW Sync Nego code triggered (%i %i)\n", pDCB->TargetID, pDCB->TargetLUN));
+ pSRB->MsgOutBuf[0] = EXTENDED_MESSAGE;
+ pSRB->MsgOutBuf[1] = 3;
+ pSRB->MsgOutBuf[2] = EXTENDED_SDTR;
+ pSRB->MsgOutBuf[3] = pDCB->NegoPeriod;
+ if (!(Sync_Off & 0x0f)) Sync_Off = SYNC_NEGO_OFFSET;
+ pSRB->MsgOutBuf[4] = Sync_Off;
+ pSRB->MsgCnt = 5;
+ //pSRB->SRBState = SRB_MSGOUT_;
+ pSRB->SRBState |= DO_SYNC_NEGO;
+ cmd = SEL_W_ATN_STOP;
+ }
+
+ /* Command is written in CommandPhase, if SEL_W_ATN_STOP ... */
+ if (cmd != SEL_W_ATN_STOP)
+ {
+ if( pSRB->SRBFlag & AUTO_REQSENSE )
+ {
+ DC390_write8 (ScsiFifo, REQUEST_SENSE);
+ DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5);
+ DC390_write8 (ScsiFifo, 0);
+ DC390_write8 (ScsiFifo, 0);
+ DC390_write8 (ScsiFifo, sizeof(scmd->sense_buffer));
+ DC390_write8 (ScsiFifo, 0);
+ DEBUG1(printk (KERN_DEBUG "DC390: AutoReqSense !\n"));
+ }
+ else /* write cmnd to bus */
+ {
+ u8 *ptr; u8 i;
+ ptr = (u8 *)scmd->cmnd;
+ for (i = 0; i < scmd->cmd_len; i++)
+ DC390_write8 (ScsiFifo, *(ptr++));
+ }
+ }
+ DEBUG0(if (pACB->pActiveDCB) \
+ printk (KERN_WARNING "DC390: ActiveDCB != 0\n"));
+ DEBUG0(if (pDCB->pActiveSRB) \
+ printk (KERN_WARNING "DC390: ActiveSRB != 0\n"));
+ //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
+ if (DC390_read8 (Scsi_Status) & INTERRUPT)
+ {
+ dc390_freetag (pDCB, pSRB);
+ DEBUG0(printk ("DC390: Interrupt during Start SCSI (pid %li, target %02i-%02i)\n",
+ scmd->pid, scmd->device->id, scmd->device->lun));
+ pSRB->SRBState = SRB_READY;
+ //DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
+ pACB->SelLost++;
+ return 1;
+ }
+ DC390_write8 (ScsiCmd, cmd);
+ pACB->pActiveDCB = pDCB;
+ pDCB->pActiveSRB = pSRB;
+ pACB->Connected = 1;
+ pSRB->ScsiPhase = SCSI_NOP1;
+ return 0;
+}
+
+//#define DMA_INT EN_DMA_INT /*| EN_PAGE_INT*/
+#define DMA_INT 0
+
+#if DMA_INT
+/* This is similar to AM53C974.c ... */
+static u8
+dc390_dma_intr (struct dc390_acb* pACB)
{
- PDCB pDCB;
- PSRB pSRB;
- PACB pACB = (PACB) cmd->device->host->hostdata;
- DC390_AFLAGS;
+ struct dc390_srb* pSRB;
+ u8 dstate;
+ DEBUG0(u16 pstate; struct pci_dev *pdev = pACB->pdev);
+
+ DEBUG0(pci_read_config_word(pdev, PCI_STATUS, &pstate));
+ DEBUG0(if (pstate & (PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY))\
+ { printk(KERN_WARNING "DC390: PCI state = %04x!\n", pstate); \
+ pci_write_config_word(pdev, PCI_STATUS, (PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY));});
+ dstate = DC390_read8 (DMA_Status);
- DEBUG0(/* if(pACB->scan_devices) */ \
- printk(KERN_INFO "DC390: Queue Cmd=%02x,Tgt=%d,LUN=%d (pid=%li), buffer=%p\n",\
- cmd->cmnd[0],cmd->device->id,cmd->device->lun,cmd->pid, cmd->buffer));
+ if (! pACB->pActiveDCB || ! pACB->pActiveDCB->pActiveSRB) return dstate;
+ else pSRB = pACB->pActiveDCB->pActiveSRB;
+
+ if (dstate & (DMA_XFER_ABORT | DMA_XFER_ERROR | POWER_DOWN | PCI_MS_ABORT))
+ {
+ printk (KERN_ERR "DC390: DMA error (%02x)!\n", dstate);
+ return dstate;
+ }
+ if (dstate & DMA_XFER_DONE)
+ {
+ u32 residual, xferCnt; int ctr = 6000000;
+ if (! (DC390_read8 (DMA_Cmd) & READ_DIRECTION))
+ {
+ do
+ {
+ DEBUG1(printk (KERN_DEBUG "DC390: read residual bytes ... \n"));
+ dstate = DC390_read8 (DMA_Status);
+ residual = DC390_read8 (CtcReg_Low) | DC390_read8 (CtcReg_Mid) << 8 |
+ DC390_read8 (CtcReg_High) << 16;
+ residual += DC390_read8 (Current_Fifo) & 0x1f;
+ } while (residual && ! (dstate & SCSI_INTERRUPT) && --ctr);
+ if (!ctr) printk (KERN_CRIT "DC390: dma_intr: DMA aborted unfinished: %06x bytes remain!!\n", DC390_read32 (DMA_Wk_ByteCntr));
+ /* residual = ... */
+ }
+ else
+ residual = 0;
+
+ /* ??? */
+
+ xferCnt = pSRB->SGToBeXferLen - residual;
+ pSRB->SGBusAddr += xferCnt;
+ pSRB->TotalXferredLen += xferCnt;
+ pSRB->SGToBeXferLen = residual;
+# ifdef DC390_DEBUG0
+ printk (KERN_INFO "DC390: DMA: residual = %i, xfer = %i\n",
+ (unsigned int)residual, (unsigned int)xferCnt);
+# endif
+
+ DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
+ }
+ dc390_laststatus &= ~0xff000000; dc390_laststatus |= dstate << 24;
+ return dstate;
+}
+#endif
- 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;
+static void __inline__
+dc390_InvalidCmd(struct dc390_acb* pACB)
+{
+ if (pACB->pActiveDCB->pActiveSRB->SRBState & (SRB_START_ | SRB_MSGOUT))
+ DC390_write8(ScsiCmd, CLEAR_FIFO_CMD);
+}
- else if( (pACB->scan_devices) && (cmd->cmnd[0] == READ_6) )
- pACB->scan_devices = 0;
- if ( ( cmd->device->id >= pACB->pScsiHost->max_id ) ||
- (cmd->device->lun >= pACB->pScsiHost->max_lun) )
+static irqreturn_t __inline__
+DC390_Interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct dc390_acb *pACB = (struct dc390_acb*)dev_id;
+ struct dc390_dcb *pDCB;
+ struct dc390_srb *pSRB;
+ u8 sstatus=0;
+ u8 phase;
+ void (*stateV)( struct dc390_acb*, struct dc390_srb*, u8 *);
+ u8 istate, istatus;
+#if DMA_INT
+ u8 dstatus;
+#endif
+
+ sstatus = DC390_read8 (Scsi_Status);
+ if( !(sstatus & INTERRUPT) )
+ return IRQ_NONE;
+
+ DEBUG1(printk (KERN_DEBUG "sstatus=%02x,", sstatus));
+
+#if DMA_INT
+ spin_lock_irq(pACB->pScsiHost->host_lock);
+ dstatus = dc390_dma_intr (pACB);
+ spin_unlock_irq(pACB->pScsiHost->host_lock);
+
+ DEBUG1(printk (KERN_DEBUG "dstatus=%02x,", dstatus));
+ if (! (dstatus & SCSI_INTERRUPT))
+ {
+ DEBUG0(printk (KERN_WARNING "DC390 Int w/o SCSI actions (only DMA?)\n"));
+ return IRQ_NONE;
+ }
+#else
+ //DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT);
+ //dstatus = DC390_read8 (DMA_Status);
+ //DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT);
+#endif
+
+ spin_lock_irq(pACB->pScsiHost->host_lock);
+
+ istate = DC390_read8 (Intern_State);
+ istatus = DC390_read8 (INT_Status); /* This clears Scsi_Status, Intern_State and INT_Status ! */
+
+ DEBUG1(printk (KERN_INFO "Istatus(Res,Inv,Dis,Serv,Succ,ReS,SelA,Sel)=%02x,",istatus));
+ dc390_laststatus &= ~0x00ffffff;
+ dc390_laststatus |= /* dstatus<<24 | */ sstatus<<16 | istate<<8 | istatus;
+
+ if (sstatus & ILLEGAL_OP_ERR)
+ {
+ printk ("DC390: Illegal Operation detected (%08x)!\n", dc390_laststatus);
+ dc390_dumpinfo (pACB, pACB->pActiveDCB, pACB->pActiveDCB->pActiveSRB);
+ }
+
+ else if (istatus & INVALID_CMD)
+ {
+ printk ("DC390: Invalid Command detected (%08x)!\n", dc390_laststatus);
+ dc390_InvalidCmd( pACB );
+ goto unlock;
+ }
+
+ if (istatus & SCSI_RESET)
+ {
+ dc390_ScsiRstDetect( pACB );
+ goto unlock;
+ }
+
+ if (istatus & DISCONNECTED)
{
-/* printk ("DC390: Ignore target %d lun %d\n",
- cmd->device->id, cmd->device->lun); */
- DC390_UNLOCK_ACB;
- //return (1);
- done (cmd);
- return (0);
+ dc390_Disconnect( pACB );
+ goto unlock;
}
- if( (pACB->scan_devices || cmd->cmnd[0] == TEST_UNIT_READY || cmd->cmnd[0] == INQUIRY) &&
- !(pACB->DCBmap[cmd->device->id] & (1 << cmd->device->lun)) )
+ if (istatus & RESELECTED)
{
- pACB->scan_devices = 1;
+ dc390_Reselect( pACB );
+ goto unlock;
+ }
+
+ else if (istatus & (SELECTED | SEL_ATTENTION))
+ {
+ printk (KERN_ERR "DC390: Target mode not supported!\n");
+ goto unlock;
+ }
- dc390_initDCB( pACB, &pDCB, cmd->device->id, cmd->device->lun );
+ if (istatus & (SUCCESSFUL_OP|SERVICE_REQUEST) )
+ {
+ pDCB = pACB->pActiveDCB;
if (!pDCB)
- {
- printk (KERN_ERR "DC390: kmalloc for DCB failed, target %02x lun %02x\n",
- cmd->device->id, cmd->device->lun);
- DC390_UNLOCK_ACB;
- printk ("DC390: No DCB in queue_command!\n");
-#ifdef USE_NEW_EH
- return (1);
-#else
- done (cmd);
- return (0);
+ {
+ printk (KERN_ERR "DC390: Suc. op/ Serv. req: pActiveDCB = 0!\n");
+ goto unlock;
+ }
+ pSRB = pDCB->pActiveSRB;
+ if( pDCB->DCBFlag & ABORT_DEV_ )
+ dc390_EnableMsgOut_Abort (pACB, pSRB);
+
+ phase = pSRB->ScsiPhase;
+ DEBUG1(printk (KERN_INFO "DC390: [%i]%s(0) (%02x)\n", phase, dc390_p0_str[phase], sstatus));
+ stateV = (void *) dc390_phase0[phase];
+ ( *stateV )( pACB, pSRB, &sstatus );
+
+ pSRB->ScsiPhase = sstatus & 7;
+ phase = (u8) sstatus & 7;
+ DEBUG1(printk (KERN_INFO "DC390: [%i]%s(1) (%02x)\n", phase, dc390_p1_str[phase], sstatus));
+ stateV = (void *) dc390_phase1[phase];
+ ( *stateV )( pACB, pSRB, &sstatus );
+ }
+
+ unlock:
+ spin_unlock_irq(pACB->pScsiHost->host_lock);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t do_DC390_Interrupt( int irq, void *dev_id, struct pt_regs *regs)
+{
+ irqreturn_t ret;
+ DEBUG1(printk (KERN_INFO "DC390: Irq (%i) caught: ", irq));
+ /* Locking is done in DC390_Interrupt */
+ ret = DC390_Interrupt(irq, dev_id, regs);
+ DEBUG1(printk (".. IRQ returned\n"));
+ return ret;
+}
+
+static void
+dc390_DataOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+ u8 sstatus;
+ struct scatterlist *psgl;
+ u32 ResidCnt, xferCnt;
+ u8 dstate = 0;
+
+ sstatus = *psstatus;
+
+ if( !(pSRB->SRBState & SRB_XFERPAD) )
+ {
+ if( sstatus & (PARITY_ERR | ILLEGAL_OP_ERR) )
+ pSRB->SRBStatus |= PARITY_ERROR;
+
+ if( sstatus & COUNT_2_ZERO )
+ {
+ unsigned long timeout = jiffies + HZ;
+
+ /* Function called from the ISR with the host_lock held and interrupts disabled */
+ if (pSRB->SGToBeXferLen)
+ while (time_before(jiffies, timeout) && !((dstate = DC390_read8 (DMA_Status)) & DMA_XFER_DONE)) {
+ spin_unlock_irq(pACB->pScsiHost->host_lock);
+ udelay(50);
+ spin_lock_irq(pACB->pScsiHost->host_lock);
+ }
+ if (!time_before(jiffies, timeout))
+ printk (KERN_CRIT "DC390: Deadlock in DataOut_0: DMA aborted unfinished: %06x bytes remain!!\n",
+ DC390_read32 (DMA_Wk_ByteCntr));
+ dc390_laststatus &= ~0xff000000;
+ dc390_laststatus |= dstate << 24;
+ pSRB->TotalXferredLen += pSRB->SGToBeXferLen;
+ pSRB->SGIndex++;
+ if( pSRB->SGIndex < pSRB->SGcount )
+ {
+ pSRB->pSegmentList++;
+ psgl = pSRB->pSegmentList;
+
+ pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl)));
+ pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl));
+ }
+ else
+ pSRB->SGToBeXferLen = 0;
+ }
+ else
+ {
+ ResidCnt = (u32) DC390_read8 (Current_Fifo) & 0x1f;
+ ResidCnt |= (u32) DC390_read8 (CtcReg_High) << 16;
+ ResidCnt |= (u32) DC390_read8 (CtcReg_Mid) << 8;
+ ResidCnt += (u32) DC390_read8 (CtcReg_Low);
+
+ xferCnt = pSRB->SGToBeXferLen - ResidCnt;
+ pSRB->SGBusAddr += xferCnt;
+ pSRB->TotalXferredLen += xferCnt;
+ pSRB->SGToBeXferLen = ResidCnt;
+ }
+ }
+ if ((*psstatus & 7) != SCSI_DATA_OUT)
+ {
+ DC390_write8 (DMA_Cmd, WRITE_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */
+ DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
+ }
+}
+
+static void
+dc390_DataIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+ u8 sstatus, residual, bval;
+ struct scatterlist *psgl;
+ u32 ResidCnt, i;
+ unsigned long xferCnt;
+ u8 *ptr;
+
+ sstatus = *psstatus;
+
+ if( !(pSRB->SRBState & SRB_XFERPAD) )
+ {
+ if( sstatus & (PARITY_ERR | ILLEGAL_OP_ERR))
+ pSRB->SRBStatus |= PARITY_ERROR;
+
+ if( sstatus & COUNT_2_ZERO )
+ {
+ int dstate = 0;
+ unsigned long timeout = jiffies + HZ;
+
+ /* Function called from the ISR with the host_lock held and interrupts disabled */
+ if (pSRB->SGToBeXferLen)
+ while (time_before(jiffies, timeout) && !((dstate = DC390_read8 (DMA_Status)) & DMA_XFER_DONE)) {
+ spin_unlock_irq(pACB->pScsiHost->host_lock);
+ udelay(50);
+ spin_lock_irq(pACB->pScsiHost->host_lock);
+ }
+ if (!time_before(jiffies, timeout)) {
+ printk (KERN_CRIT "DC390: Deadlock in DataIn_0: DMA aborted unfinished: %06x bytes remain!!\n",
+ DC390_read32 (DMA_Wk_ByteCntr));
+ printk (KERN_CRIT "DC390: DataIn_0: DMA State: %i\n", dstate);
+ }
+ dc390_laststatus &= ~0xff000000;
+ dc390_laststatus |= dstate << 24;
+ DEBUG1(ResidCnt = ((unsigned long) DC390_read8 (CtcReg_High) << 16) \
+ + ((unsigned long) DC390_read8 (CtcReg_Mid) << 8) \
+ + ((unsigned long) DC390_read8 (CtcReg_Low)));
+ DEBUG1(printk (KERN_DEBUG "Count_2_Zero (ResidCnt=%i,ToBeXfer=%li),", ResidCnt, pSRB->SGToBeXferLen));
+
+ DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */
+
+ pSRB->TotalXferredLen += pSRB->SGToBeXferLen;
+ pSRB->SGIndex++;
+ if( pSRB->SGIndex < pSRB->SGcount )
+ {
+ pSRB->pSegmentList++;
+ psgl = pSRB->pSegmentList;
+
+ pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl)));
+ pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl));
+ }
+ else
+ pSRB->SGToBeXferLen = 0;
+ }
+ else /* phase changed */
+ {
+ residual = 0;
+ bval = DC390_read8 (Current_Fifo);
+ while( bval & 0x1f )
+ {
+ DEBUG1(printk (KERN_DEBUG "Check for residuals,"));
+ if( (bval & 0x1f) == 1 )
+ {
+ for(i=0; i < 0x100; i++)
+ {
+ bval = DC390_read8 (Current_Fifo);
+ if( !(bval & 0x1f) )
+ goto din_1;
+ else if( i == 0x0ff )
+ {
+ residual = 1; /* ;1 residual byte */
+ goto din_1;
+ }
+ }
+ }
+ else
+ bval = DC390_read8 (Current_Fifo);
+ }
+din_1:
+ DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_BLAST_CMD);
+ for (i = 0xa000; i; i--)
+ {
+ bval = DC390_read8 (DMA_Status);
+ if (bval & BLAST_COMPLETE)
+ break;
+ }
+ /* It seems a DMA Blast abort isn't that bad ... */
+ if (!i) printk (KERN_ERR "DC390: DMA Blast aborted unfinished!\n");
+ //DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */
+ dc390_laststatus &= ~0xff000000; dc390_laststatus |= bval << 24;
+
+ DEBUG1(printk (KERN_DEBUG "Blast: Read %i times DMA_Status %02x", 0xa000-i, bval));
+ ResidCnt = (u32) DC390_read8 (CtcReg_High);
+ ResidCnt <<= 8;
+ ResidCnt |= (u32) DC390_read8 (CtcReg_Mid);
+ ResidCnt <<= 8;
+ ResidCnt |= (u32) DC390_read8 (CtcReg_Low);
+
+ xferCnt = pSRB->SGToBeXferLen - ResidCnt;
+ pSRB->SGBusAddr += xferCnt;
+ pSRB->TotalXferredLen += xferCnt;
+ pSRB->SGToBeXferLen = ResidCnt;
+
+ if( residual )
+ {
+ static int feedback_requested;
+ bval = DC390_read8 (ScsiFifo); /* get one residual byte */
+
+ if (!feedback_requested) {
+ feedback_requested = 1;
+ printk(KERN_WARNING "%s: Please, contact <linux-scsi@vger.kernel.org> "
+ "to help improve support for your system.\n", __FILE__);
+ }
+
+ ptr = (u8 *) bus_to_virt( pSRB->SGBusAddr );
+ *ptr = bval;
+ pSRB->SGBusAddr++; xferCnt++;
+ pSRB->TotalXferredLen++;
+ pSRB->SGToBeXferLen--;
+ }
+ DEBUG1(printk (KERN_DEBUG "Xfered: %li, Total: %li, Remaining: %li\n", xferCnt,\
+ pSRB->TotalXferredLen, pSRB->SGToBeXferLen));
+
+ }
+ }
+ if ((*psstatus & 7) != SCSI_DATA_IN)
+ {
+ DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
+ DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD); /* | DMA_INT */
+ }
+}
+
+static void
+dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+}
+
+static void
+dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+
+ pSRB->TargetStatus = DC390_read8 (ScsiFifo);
+ //udelay (1);
+ pSRB->EndMessage = DC390_read8 (ScsiFifo); /* get message */
+
+ *psstatus = SCSI_NOP0;
+ pSRB->SRBState = SRB_COMPLETED;
+ DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD);
+}
+
+static void
+dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+ if( pSRB->SRBState & (SRB_UNEXPECT_RESEL+SRB_ABORT_SENT) )
+ *psstatus = SCSI_NOP0;
+ //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
+}
+
+
+static void __inline__
+dc390_reprog (struct dc390_acb* pACB, struct dc390_dcb* pDCB)
+{
+ DC390_write8 (Sync_Period, pDCB->SyncPeriod);
+ DC390_write8 (Sync_Offset, pDCB->SyncOffset);
+ DC390_write8 (CtrlReg3, pDCB->CtrlR3);
+ DC390_write8 (CtrlReg4, pDCB->CtrlR4);
+ dc390_SetXferRate (pACB, pDCB);
+}
+
+
+#ifdef DC390_DEBUG0
+static void
+dc390_printMsg (u8 *MsgBuf, u8 len)
+{
+ int i;
+ printk (" %02x", MsgBuf[0]);
+ for (i = 1; i < len; i++)
+ printk (" %02x", MsgBuf[i]);
+ printk ("\n");
+}
#endif
+
+#define DC390_ENABLE_MSGOUT DC390_write8 (ScsiCmd, SET_ATN_CMD)
+
+/* reject_msg */
+static void __inline__
+dc390_MsgIn_reject (struct dc390_acb* pACB, struct dc390_srb* pSRB)
+{
+ pSRB->MsgOutBuf[0] = MESSAGE_REJECT;
+ pSRB->MsgCnt = 1;
+ DC390_ENABLE_MSGOUT;
+ DEBUG0 (printk (KERN_INFO "DC390: Reject message\n"));
+}
+
+/* abort command */
+static void
+dc390_EnableMsgOut_Abort ( struct dc390_acb* pACB, struct dc390_srb* pSRB )
+{
+ pSRB->MsgOutBuf[0] = ABORT;
+ pSRB->MsgCnt = 1; DC390_ENABLE_MSGOUT;
+ pSRB->pSRBDCB->DCBFlag &= ~ABORT_DEV_;
+}
+
+static struct dc390_srb*
+dc390_MsgIn_QTag (struct dc390_acb* pACB, struct dc390_dcb* pDCB, s8 tag)
+{
+ struct dc390_srb* pSRB = pDCB->pGoingSRB;
+
+ if (pSRB)
+ {
+ struct scsi_cmnd *scmd = scsi_find_tag(pSRB->pcmd->device, tag);
+ pSRB = (struct dc390_srb *)scmd->host_scribble;
+
+ if (pDCB->DCBFlag & ABORT_DEV_)
+ {
+ pSRB->SRBState = SRB_ABORT_SENT;
+ dc390_EnableMsgOut_Abort( pACB, pSRB );
+ }
+
+ if (!(pSRB->SRBState & SRB_DISCONNECT))
+ goto mingx0;
+
+ pDCB->pActiveSRB = pSRB;
+ pSRB->SRBState = SRB_DATA_XFER;
+ }
+ else
+ {
+ mingx0:
+ pSRB = pACB->pTmpSRB;
+ pSRB->SRBState = SRB_UNEXPECT_RESEL;
+ pDCB->pActiveSRB = pSRB;
+ pSRB->MsgOutBuf[0] = ABORT_TAG;
+ pSRB->MsgCnt = 1; DC390_ENABLE_MSGOUT;
+ }
+ return pSRB;
+}
+
+
+/* set async transfer mode */
+static void
+dc390_MsgIn_set_async (struct dc390_acb* pACB, struct dc390_srb* pSRB)
+{
+ struct dc390_dcb* pDCB = pSRB->pSRBDCB;
+ if (!(pSRB->SRBState & DO_SYNC_NEGO))
+ printk (KERN_INFO "DC390: Target %i initiates Non-Sync?\n", pDCB->TargetID);
+ pSRB->SRBState &= ~DO_SYNC_NEGO;
+ pDCB->SyncMode &= ~(SYNC_ENABLE+SYNC_NEGO_DONE);
+ pDCB->SyncPeriod = 0;
+ pDCB->SyncOffset = 0;
+ //pDCB->NegoPeriod = 50; /* 200ns <=> 5 MHz */
+ pDCB->CtrlR3 = FAST_CLK; /* fast clock / normal scsi */
+ pDCB->CtrlR4 &= 0x3f;
+ pDCB->CtrlR4 |= pACB->glitch_cfg; /* glitch eater */
+ dc390_reprog (pACB, pDCB);
+}
+
+/* set sync transfer mode */
+static void
+dc390_MsgIn_set_sync (struct dc390_acb* pACB, struct dc390_srb* pSRB)
+{
+ u8 bval;
+ u16 wval, wval1;
+ struct dc390_dcb* pDCB = pSRB->pSRBDCB;
+ u8 oldsyncperiod = pDCB->SyncPeriod;
+ u8 oldsyncoffset = pDCB->SyncOffset;
+
+ if (!(pSRB->SRBState & DO_SYNC_NEGO))
+ {
+ printk (KERN_INFO "DC390: Target %i initiates Sync: %ins %i ... answer ...\n",
+ pDCB->TargetID, pSRB->MsgInBuf[3]<<2, pSRB->MsgInBuf[4]);
+
+ /* reject */
+ //dc390_MsgIn_reject (pACB, pSRB);
+ //return dc390_MsgIn_set_async (pACB, pSRB);
+
+ /* Reply with corrected SDTR Message */
+ if (pSRB->MsgInBuf[4] > 15)
+ {
+ printk (KERN_INFO "DC390: Lower Sync Offset to 15\n");
+ pSRB->MsgInBuf[4] = 15;
+ }
+ if (pSRB->MsgInBuf[3] < pDCB->NegoPeriod)
+ {
+ printk (KERN_INFO "DC390: Set sync nego period to %ins\n", pDCB->NegoPeriod << 2);
+ pSRB->MsgInBuf[3] = pDCB->NegoPeriod;
+ }
+ memcpy (pSRB->MsgOutBuf, pSRB->MsgInBuf, 5);
+ pSRB->MsgCnt = 5;
+ DC390_ENABLE_MSGOUT;
+ }
+
+ pSRB->SRBState &= ~DO_SYNC_NEGO;
+ pDCB->SyncMode |= SYNC_ENABLE+SYNC_NEGO_DONE;
+ pDCB->SyncOffset &= 0x0f0;
+ pDCB->SyncOffset |= pSRB->MsgInBuf[4];
+ pDCB->NegoPeriod = pSRB->MsgInBuf[3];
+
+ wval = (u16) pSRB->MsgInBuf[3];
+ wval = wval << 2; wval -= 3; wval1 = wval / 25; /* compute speed */
+ if( (wval1 * 25) != wval) wval1++;
+ bval = FAST_CLK+FAST_SCSI; /* fast clock / fast scsi */
+
+ pDCB->CtrlR4 &= 0x3f; /* Glitch eater: 12ns less than normal */
+ if (pACB->glitch_cfg != NS_TO_GLITCH(0))
+ pDCB->CtrlR4 |= NS_TO_GLITCH(((GLITCH_TO_NS(pACB->glitch_cfg)) - 1));
+ else
+ pDCB->CtrlR4 |= NS_TO_GLITCH(0);
+ if (wval1 < 4) pDCB->CtrlR4 |= NS_TO_GLITCH(0); /* Ultra */
+
+ if (wval1 >= 8)
+ {
+ wval1--; /* Timing computation differs by 1 from FAST_SCSI */
+ bval = FAST_CLK; /* fast clock / normal scsi */
+ pDCB->CtrlR4 |= pACB->glitch_cfg; /* glitch eater */
+ }
+
+ pDCB->CtrlR3 = bval;
+ pDCB->SyncPeriod = (u8)wval1;
+
+ if ((oldsyncperiod != wval1 || oldsyncoffset != pDCB->SyncOffset) && pDCB->TargetLUN == 0)
+ {
+ if (! (bval & FAST_SCSI)) wval1++;
+ printk (KERN_INFO "DC390: Target %i: Sync transfer %i.%1i MHz, Offset %i\n", pDCB->TargetID,
+ 40/wval1, ((40%wval1)*10+wval1/2)/wval1, pDCB->SyncOffset & 0x0f);
+ }
+
+ dc390_reprog (pACB, pDCB);
+}
+
+
+/* handle RESTORE_PTR */
+/* I presume, this command is already mapped, so, have to remap. */
+static void
+dc390_restore_ptr (struct dc390_acb* pACB, struct dc390_srb* pSRB)
+{
+ struct scsi_cmnd *pcmd = pSRB->pcmd;
+ struct scatterlist *psgl;
+ pSRB->TotalXferredLen = 0;
+ pSRB->SGIndex = 0;
+ if (pcmd->use_sg) {
+ pSRB->pSegmentList = (struct scatterlist *)pcmd->request_buffer;
+ psgl = pSRB->pSegmentList;
+ //dc390_pci_sync(pSRB);
+
+ while (pSRB->TotalXferredLen + (unsigned long) sg_dma_len(psgl) < pSRB->Saved_Ptr)
+ {
+ pSRB->TotalXferredLen += (unsigned long) sg_dma_len(psgl);
+ pSRB->SGIndex++;
+ if( pSRB->SGIndex < pSRB->SGcount )
+ {
+ pSRB->pSegmentList++;
+ psgl = pSRB->pSegmentList;
+ pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl)));
+ pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl));
+ }
+ else
+ pSRB->SGToBeXferLen = 0;
+ }
+ pSRB->SGToBeXferLen -= (pSRB->Saved_Ptr - pSRB->TotalXferredLen);
+ pSRB->SGBusAddr += (pSRB->Saved_Ptr - pSRB->TotalXferredLen);
+ printk (KERN_INFO "DC390: Pointer restored. Segment %i, Total %li, Bus %08lx\n",
+ pSRB->SGIndex, pSRB->Saved_Ptr, pSRB->SGBusAddr);
+
+ } else if(pcmd->request_buffer) {
+ //dc390_pci_sync(pSRB);
+
+ sg_dma_len(&pSRB->Segmentx) = pcmd->request_bufflen - pSRB->Saved_Ptr;
+ pSRB->SGcount = 1;
+ pSRB->pSegmentList = (struct scatterlist *) &pSRB->Segmentx;
+ } else {
+ pSRB->SGcount = 0;
+ printk (KERN_INFO "DC390: RESTORE_PTR message for Transfer without Scatter-Gather ??\n");
+ }
+
+ pSRB->TotalXferredLen = pSRB->Saved_Ptr;
+}
+
+
+/* According to the docs, the AM53C974 reads the message and
+ * generates a Successful Operation IRQ before asserting ACK for
+ * the last byte (how does it know whether it's the last ?) */
+/* The old code handled it in another way, indicating, that on
+ * every message byte an IRQ is generated and every byte has to
+ * be manually ACKed. Hmmm ? (KG, 98/11/28) */
+/* The old implementation was correct. Sigh! */
+
+/* Check if the message is complete */
+static u8 __inline__
+dc390_MsgIn_complete (u8 *msgbuf, u32 len)
+{
+ if (*msgbuf == EXTENDED_MESSAGE)
+ {
+ if (len < 2) return 0;
+ if (len < msgbuf[1] + 2) return 0;
+ }
+ else if (*msgbuf >= 0x20 && *msgbuf <= 0x2f) // two byte messages
+ if (len < 2) return 0;
+ return 1;
+}
+
+
+
+/* read and eval received messages */
+static void
+dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+ struct dc390_dcb* pDCB = pACB->pActiveDCB;
+
+ /* Read the msg */
+
+ pSRB->MsgInBuf[pACB->MsgLen++] = DC390_read8 (ScsiFifo);
+ //pSRB->SRBState = 0;
+
+ /* Msg complete ? */
+ if (dc390_MsgIn_complete (pSRB->MsgInBuf, pACB->MsgLen))
+ {
+ DEBUG0 (printk (KERN_INFO "DC390: MsgIn:"); dc390_printMsg (pSRB->MsgInBuf, pACB->MsgLen));
+ /* Now eval the msg */
+ switch (pSRB->MsgInBuf[0])
+ {
+ case DISCONNECT:
+ pSRB->SRBState = SRB_DISCONNECT; break;
+
+ case SIMPLE_QUEUE_TAG:
+ case HEAD_OF_QUEUE_TAG:
+ case ORDERED_QUEUE_TAG:
+ pSRB = dc390_MsgIn_QTag (pACB, pDCB, pSRB->MsgInBuf[1]);
+ break;
+
+ case MESSAGE_REJECT:
+ DC390_write8 (ScsiCmd, RESET_ATN_CMD);
+ pDCB->NegoPeriod = 50; /* 200ns <=> 5 MHz */
+ if( pSRB->SRBState & DO_SYNC_NEGO)
+ dc390_MsgIn_set_async (pACB, pSRB);
+ break;
+
+ case EXTENDED_MESSAGE:
+ /* reject every extended msg but SDTR */
+ if (pSRB->MsgInBuf[1] != 3 || pSRB->MsgInBuf[2] != EXTENDED_SDTR)
+ dc390_MsgIn_reject (pACB, pSRB);
+ else
+ {
+ if (pSRB->MsgInBuf[3] == 0 || pSRB->MsgInBuf[4] == 0)
+ dc390_MsgIn_set_async (pACB, pSRB);
+ else
+ dc390_MsgIn_set_sync (pACB, pSRB);
+ }
+
+ // nothing has to be done
+ case COMMAND_COMPLETE: break;
+
+ // SAVE POINTER may be ignored as we have the struct dc390_srb* associated with the
+ // scsi command. Thanks, Gerard, for pointing it out.
+ case SAVE_POINTERS:
+ pSRB->Saved_Ptr = pSRB->TotalXferredLen;
+ break;
+ // The device might want to restart transfer with a RESTORE
+ case RESTORE_POINTERS:
+ DEBUG0(printk ("DC390: RESTORE POINTER message received ... try to handle\n"));
+ dc390_restore_ptr (pACB, pSRB);
+ break;
+
+ // reject unknown messages
+ default: dc390_MsgIn_reject (pACB, pSRB);
}
-
+
+ /* Clear counter and MsgIn state */
+ pSRB->SRBState &= ~SRB_MSGIN;
+ pACB->MsgLen = 0;
+ }
+
+ *psstatus = SCSI_NOP0;
+ DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD);
+ //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
+}
+
+
+static void
+dc390_DataIO_Comm( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 ioDir)
+{
+ struct scatterlist *psgl;
+ unsigned long lval;
+ struct dc390_dcb* pDCB = pACB->pActiveDCB;
+
+ if (pSRB == pACB->pTmpSRB)
+ {
+ if (pDCB)
+ printk(KERN_ERR "DC390: pSRB == pTmpSRB! (TagQ Error?) (%02i-%i)\n", pDCB->TargetID, pDCB->TargetLUN);
+ else
+ printk(KERN_ERR "DC390: pSRB == pTmpSRB! (TagQ Error?) (DCB 0!)\n");
+
+ /* Try to recover - some broken disks react badly to tagged INQUIRY */
+ if (pDCB && pACB->scan_devices && pDCB->GoingSRBCnt == 1) {
+ pSRB = pDCB->pGoingSRB;
+ pDCB->pActiveSRB = pSRB;
+ } else {
+ pSRB->pSRBDCB = pDCB;
+ dc390_EnableMsgOut_Abort(pACB, pSRB);
+ if (pDCB)
+ pDCB->DCBFlag |= ABORT_DEV;
+ return;
+ }
}
- else if( !(pACB->scan_devices) && !(pACB->DCBmap[cmd->device->id] & (1 << cmd->device->lun)) )
+
+ if( pSRB->SGIndex < pSRB->SGcount )
+ {
+ DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir /* | DMA_INT */);
+ if( !pSRB->SGToBeXferLen )
+ {
+ psgl = pSRB->pSegmentList;
+ pSRB->SGBusAddr = cpu_to_le32(pci_dma_lo32(sg_dma_address(psgl)));
+ pSRB->SGToBeXferLen = cpu_to_le32(sg_dma_len(psgl));
+ DEBUG1(printk (KERN_DEBUG " DC390: Next SG segment."));
+ }
+ lval = pSRB->SGToBeXferLen;
+ DEBUG1(printk (KERN_DEBUG " DC390: Start transfer: %li bytes (address %08lx)\n", lval, pSRB->SGBusAddr));
+ DC390_write8 (CtcReg_Low, (u8) lval);
+ lval >>= 8;
+ DC390_write8 (CtcReg_Mid, (u8) lval);
+ lval >>= 8;
+ DC390_write8 (CtcReg_High, (u8) lval);
+
+ DC390_write32 (DMA_XferCnt, pSRB->SGToBeXferLen);
+ DC390_write32 (DMA_XferAddr, pSRB->SGBusAddr);
+
+ //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); /* | DMA_INT; */
+ pSRB->SRBState = SRB_DATA_XFER;
+
+ DC390_write8 (ScsiCmd, DMA_COMMAND+INFO_XFER_CMD);
+
+ DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir | DMA_INT);
+ //DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT));
+ //DEBUG1(printk (KERN_DEBUG "DC390: DMA_Status: %02x\n", DC390_read8 (DMA_Status)));
+ //DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT));
+ }
+ else /* xfer pad */
+ {
+ if( pSRB->SGcount )
+ {
+ pSRB->AdaptStatus = H_OVER_UNDER_RUN;
+ pSRB->SRBStatus |= OVER_RUN;
+ DEBUG0(printk (KERN_WARNING " DC390: Overrun -"));
+ }
+ DEBUG0(printk (KERN_WARNING " Clear transfer pad \n"));
+ DC390_write8 (CtcReg_Low, 0);
+ DC390_write8 (CtcReg_Mid, 0);
+ DC390_write8 (CtcReg_High, 0);
+
+ pSRB->SRBState |= SRB_XFERPAD;
+ DC390_write8 (ScsiCmd, DMA_COMMAND+XFER_PAD_BYTE);
+/*
+ DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir); // | DMA_INT;
+ DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir | DMA_INT);
+*/
+ }
+}
+
+
+static void
+dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+ dc390_DataIO_Comm (pACB, pSRB, WRITE_DIRECTION);
+}
+
+static void
+dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+ dc390_DataIO_Comm (pACB, pSRB, READ_DIRECTION);
+}
+
+static void
+dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+ struct dc390_dcb* pDCB;
+ u8 i, cnt;
+ u8 *ptr;
+
+ DC390_write8 (ScsiCmd, RESET_ATN_CMD);
+ DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
+ if( !(pSRB->SRBFlag & AUTO_REQSENSE) )
{
- printk(KERN_INFO "DC390: Ignore target %02x lun %02x\n",
- cmd->device->id, cmd->device->lun);
- DC390_UNLOCK_ACB;
- //return (1);
- done (cmd);
- return (0);
+ cnt = (u8) pSRB->pcmd->cmd_len;
+ ptr = (u8 *) pSRB->pcmd->cmnd;
+ for(i=0; i < cnt; i++)
+ DC390_write8 (ScsiFifo, *(ptr++));
}
else
{
- pDCB = dc390_findDCB (pACB, cmd->device->id, cmd->device->lun);
- if (!pDCB)
- { /* should never happen */
- printk (KERN_ERR "DC390: no DCB failed, target %02x lun %02x\n",
- cmd->device->id, cmd->device->lun);
- DC390_UNLOCK_ACB;
- printk ("DC390: No DCB in queuecommand (2)!\n");
-#ifdef USE_NEW_EH
- return (1);
-#else
- done (cmd);
- return (0);
-#endif
- }
+ DC390_write8 (ScsiFifo, REQUEST_SENSE);
+ pDCB = pACB->pActiveDCB;
+ DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5);
+ DC390_write8 (ScsiFifo, 0);
+ DC390_write8 (ScsiFifo, 0);
+ DC390_write8 (ScsiFifo, sizeof(pSRB->pcmd->sense_buffer));
+ DC390_write8 (ScsiFifo, 0);
+ DEBUG0(printk(KERN_DEBUG "DC390: AutoReqSense (CmndPhase)!\n"));
}
+ pSRB->SRBState = SRB_COMMAND;
+ DC390_write8 (ScsiCmd, INFO_XFER_CMD);
+}
+
+static void
+dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+ DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
+ pSRB->SRBState = SRB_STATUS;
+ DC390_write8 (ScsiCmd, INITIATOR_CMD_CMPLTE);
+ //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
+}
+
+static void
+dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+ u8 bval, i, cnt;
+ u8 *ptr;
+ struct dc390_dcb* pDCB;
+
+ DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
+ pDCB = pACB->pActiveDCB;
+ if( !(pSRB->SRBState & SRB_MSGOUT) )
+ {
+ cnt = pSRB->MsgCnt;
+ if( cnt )
+ {
+ ptr = (u8 *) pSRB->MsgOutBuf;
+ for(i=0; i < cnt; i++)
+ DC390_write8 (ScsiFifo, *(ptr++));
+ pSRB->MsgCnt = 0;
+ if( (pDCB->DCBFlag & ABORT_DEV_) &&
+ (pSRB->MsgOutBuf[0] == ABORT) )
+ pSRB->SRBState = SRB_ABORT_SENT;
+ }
+ else
+ {
+ bval = ABORT; /* ??? MSG_NOP */
+ if( (pSRB->pcmd->cmnd[0] == INQUIRY ) ||
+ (pSRB->pcmd->cmnd[0] == REQUEST_SENSE) ||
+ (pSRB->SRBFlag & AUTO_REQSENSE) )
+ {
+ if( pDCB->SyncMode & SYNC_ENABLE )
+ goto mop1;
+ }
+ DC390_write8 (ScsiFifo, bval);
+ }
+ DC390_write8 (ScsiCmd, INFO_XFER_CMD);
+ }
+ else
+ {
+mop1:
+ printk (KERN_ERR "DC390: OLD Sync Nego code triggered! (%i %i)\n", pDCB->TargetID, pDCB->TargetLUN);
+ DC390_write8 (ScsiFifo, EXTENDED_MESSAGE);
+ DC390_write8 (ScsiFifo, 3); /* ;length of extended msg */
+ DC390_write8 (ScsiFifo, EXTENDED_SDTR); /* ; sync nego */
+ DC390_write8 (ScsiFifo, pDCB->NegoPeriod);
+ if (pDCB->SyncOffset & 0x0f)
+ DC390_write8 (ScsiFifo, pDCB->SyncOffset);
+ else
+ DC390_write8 (ScsiFifo, SYNC_NEGO_OFFSET);
+ pSRB->SRBState |= DO_SYNC_NEGO;
+ DC390_write8 (ScsiCmd, INFO_XFER_CMD);
+ }
+}
+
+static void
+dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+ DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
+ if( !(pSRB->SRBState & SRB_MSGIN) )
+ {
+ pSRB->SRBState &= ~SRB_DISCONNECT;
+ pSRB->SRBState |= SRB_MSGIN;
+ }
+ DC390_write8 (ScsiCmd, INFO_XFER_CMD);
+ //DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
+}
+
+static void
+dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+}
+
+static void
+dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
+{
+}
+
+
+static void
+dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB )
+{
+ u8 bval, i, cnt;
+ struct dc390_dcb* ptr;
+
+ if( !(pDCB->TargetLUN) )
+ {
+ if( !pACB->scan_devices )
+ {
+ ptr = pACB->pLinkDCB;
+ cnt = pACB->DCBCnt;
+ bval = pDCB->TargetID;
+ for(i=0; i<cnt; i++)
+ {
+ if( ptr->TargetID == bval )
+ {
+ ptr->SyncPeriod = pDCB->SyncPeriod;
+ ptr->SyncOffset = pDCB->SyncOffset;
+ ptr->CtrlR3 = pDCB->CtrlR3;
+ ptr->CtrlR4 = pDCB->CtrlR4;
+ ptr->SyncMode = pDCB->SyncMode;
+ }
+ ptr = ptr->pNextDCB;
+ }
+ }
+ }
+ return;
+}
+
+
+static void
+dc390_Disconnect( struct dc390_acb* pACB )
+{
+ struct dc390_dcb *pDCB;
+ struct dc390_srb *pSRB, *psrb;
+ u8 i, cnt;
+
+ DEBUG0(printk(KERN_INFO "DISC,"));
+
+ if (!pACB->Connected) printk(KERN_ERR "DC390: Disconnect not-connected bus?\n");
+ pACB->Connected = 0;
+ pDCB = pACB->pActiveDCB;
+ if (!pDCB)
+ {
+ DEBUG0(printk(KERN_ERR "ACB:%p->ActiveDCB:%p IOPort:%04x IRQ:%02x !\n",\
+ pACB, pDCB, pACB->IOPortBase, pACB->IRQLevel));
+ mdelay(400);
+ DC390_read8 (INT_Status); /* Reset Pending INT */
+ DC390_write8 (ScsiCmd, EN_SEL_RESEL);
+ return;
+ }
+ DC390_write8 (ScsiCmd, EN_SEL_RESEL);
+ pSRB = pDCB->pActiveSRB;
+ pACB->pActiveDCB = NULL;
+ pSRB->ScsiPhase = SCSI_NOP0;
+ if( pSRB->SRBState & SRB_UNEXPECT_RESEL )
+ pSRB->SRBState = 0;
+ else if( pSRB->SRBState & SRB_ABORT_SENT )
+ {
+ pDCB->TagMask = 0;
+ pDCB->DCBFlag = 0;
+ cnt = pDCB->GoingSRBCnt;
+ pDCB->GoingSRBCnt = 0;
+ pSRB = pDCB->pGoingSRB;
+ for( i=0; i < cnt; i++)
+ {
+ psrb = pSRB->pNextSRB;
+ dc390_Free_insert (pACB, pSRB);
+ pSRB = psrb;
+ }
+ pDCB->pGoingSRB = NULL;
+ }
+ else
+ {
+ if( (pSRB->SRBState & (SRB_START_+SRB_MSGOUT)) ||
+ !(pSRB->SRBState & (SRB_DISCONNECT+SRB_COMPLETED)) )
+ { /* Selection time out */
+ pSRB->TargetStatus = SCSI_STAT_SEL_TIMEOUT;
+ goto disc1;
+ }
+ else if (!(pSRB->SRBState & SRB_DISCONNECT) && (pSRB->SRBState & SRB_COMPLETED))
+ {
+disc1:
+ dc390_freetag (pDCB, pSRB);
+ pDCB->pActiveSRB = NULL;
+ pSRB->SRBState = SRB_FREE;
+ dc390_SRBdone( pACB, pDCB, pSRB);
+ }
+ }
+ pACB->MsgLen = 0;
+}
+
+
+static void
+dc390_Reselect( struct dc390_acb* pACB )
+{
+ struct dc390_dcb* pDCB;
+ struct dc390_srb* pSRB;
+ u8 id, lun;
+
+ DEBUG0(printk(KERN_INFO "RSEL,"));
+ pACB->Connected = 1;
+ pDCB = pACB->pActiveDCB;
+ if( pDCB )
+ { /* Arbitration lost but Reselection won */
+ DEBUG0(printk ("DC390: (ActiveDCB != 0: Arb. lost but resel. won)!\n"));
+ pSRB = pDCB->pActiveSRB;
+ if( !( pACB->scan_devices ) )
+ {
+ struct scsi_cmnd *pcmd = pSRB->pcmd;
+ pcmd->resid = pcmd->request_bufflen;
+ SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
+ dc390_Going_remove(pDCB, pSRB);
+ dc390_Free_insert(pACB, pSRB);
+ pcmd->scsi_done (pcmd);
+ DEBUG0(printk(KERN_DEBUG"DC390: Return SRB %p to free\n", pSRB));
+ }
+ }
+ /* Get ID */
+ lun = DC390_read8 (ScsiFifo);
+ DEBUG0(printk ("Dev %02x,", lun));
+ if (!(lun & (1 << pACB->pScsiHost->this_id)))
+ printk (KERN_ERR "DC390: Reselection must select host adapter: %02x!\n", lun);
+ else
+ lun ^= 1 << pACB->pScsiHost->this_id; /* Mask AdapterID */
+ id = 0; while (lun >>= 1) id++;
+ /* Get LUN */
+ lun = DC390_read8 (ScsiFifo);
+ if (!(lun & IDENTIFY_BASE)) printk (KERN_ERR "DC390: Resel: Expect identify message!\n");
+ lun &= 7;
+ DEBUG0(printk ("(%02i-%i),", id, lun));
+ pDCB = dc390_findDCB (pACB, id, lun);
+ if (!pDCB)
+ {
+ printk (KERN_ERR "DC390: Reselect from non existing device (%02i-%i)\n",
+ id, lun);
+ return;
+ }
+ pACB->pActiveDCB = pDCB;
+ /* TagQ: We expect a message soon, so never mind the exact SRB */
+ if( pDCB->SyncMode & EN_TAG_QUEUEING )
+ {
+ pSRB = pACB->pTmpSRB;
+ pDCB->pActiveSRB = pSRB;
+ }
+ else
+ {
+ pSRB = pDCB->pActiveSRB;
+ if( !pSRB || !(pSRB->SRBState & SRB_DISCONNECT) )
+ {
+ pSRB= pACB->pTmpSRB;
+ pSRB->SRBState = SRB_UNEXPECT_RESEL;
+ printk (KERN_ERR "DC390: Reselect without outstanding cmnd (%02i-%i)\n",
+ id, lun);
+ pDCB->pActiveSRB = pSRB;
+ dc390_EnableMsgOut_Abort ( pACB, pSRB );
+ }
+ else
+ {
+ if( pDCB->DCBFlag & ABORT_DEV_ )
+ {
+ pSRB->SRBState = SRB_ABORT_SENT;
+ printk (KERN_INFO "DC390: Reselect: Abort (%02i-%i)\n",
+ id, lun);
+ dc390_EnableMsgOut_Abort( pACB, pSRB );
+ }
+ else
+ pSRB->SRBState = SRB_DATA_XFER;
+ }
+ }
+
+ DEBUG1(printk (KERN_DEBUG "Resel SRB(%p): TagNum (%02x)\n", pSRB, pSRB->TagNumber));
+ pSRB->ScsiPhase = SCSI_NOP0;
+ DC390_write8 (Scsi_Dest_ID, pDCB->TargetID);
+ DC390_write8 (Sync_Period, pDCB->SyncPeriod);
+ DC390_write8 (Sync_Offset, pDCB->SyncOffset);
+ DC390_write8 (CtrlReg1, pDCB->CtrlR1);
+ DC390_write8 (CtrlReg3, pDCB->CtrlR3);
+ DC390_write8 (CtrlReg4, pDCB->CtrlR4); /* ; Glitch eater */
+ DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); /* ;to release the /ACK signal */
+}
+
+static int __inline__
+dc390_RequestSense(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
+{
+ struct scsi_cmnd *pcmd;
+
+ pcmd = pSRB->pcmd;
+
+ REMOVABLEDEBUG(printk(KERN_INFO "DC390: RequestSense(Cmd %02x, Id %02x, LUN %02x)\n",\
+ pcmd->cmnd[0], pDCB->TargetID, pDCB->TargetLUN));
+
+ pSRB->SRBFlag |= AUTO_REQSENSE;
+ pSRB->SavedSGCount = pcmd->use_sg;
+ pSRB->SavedTotXLen = pSRB->TotalXferredLen;
+ pSRB->AdaptStatus = 0;
+ pSRB->TargetStatus = 0; /* CHECK_CONDITION<<1; */
+
+ /* We are called from SRBdone, original PCI mapping has been removed
+ * already, new one is set up from StartSCSI */
+ pSRB->SGIndex = 0;
+
+ pSRB->TotalXferredLen = 0;
+ pSRB->SGToBeXferLen = 0;
+ return dc390_StartSCSI(pACB, pDCB, pSRB);
+}
- 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);
+static void
+dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB )
+{
+ u8 status;
+ struct scsi_cmnd *pcmd;
+
+ pcmd = pSRB->pcmd;
+ /* KG: Moved pci_unmap here */
+ dc390_pci_unmap(pSRB);
+
+ status = pSRB->TargetStatus;
+
+ DEBUG0(printk (" SRBdone (%02x,%08x), SRB %p, pid %li\n", status, pcmd->result,\
+ pSRB, pcmd->pid));
+ if(pSRB->SRBFlag & AUTO_REQSENSE)
+ { /* Last command was a Request Sense */
+ pSRB->SRBFlag &= ~AUTO_REQSENSE;
+ pSRB->AdaptStatus = 0;
+ pSRB->TargetStatus = CHECK_CONDITION << 1;
+
+ //pcmd->result = MK_RES(DRIVER_SENSE,DID_OK,0,status);
+ if (status == (CHECK_CONDITION << 1))
+ pcmd->result = MK_RES_LNX(0, DID_BAD_TARGET, 0, /*CHECK_CONDITION*/0);
+ else /* Retry */
+ {
+ if( pSRB->pcmd->cmnd[0] == TEST_UNIT_READY /* || pSRB->pcmd->cmnd[0] == START_STOP */)
+ {
+ /* Don't retry on TEST_UNIT_READY */
+ pcmd->result = MK_RES_LNX(DRIVER_SENSE,DID_OK,0,CHECK_CONDITION);
+ REMOVABLEDEBUG(printk(KERN_INFO "Cmd=%02x, Result=%08x, XferL=%08x\n",pSRB->pcmd->cmnd[0],\
+ (u32) pcmd->result, (u32) pSRB->TotalXferredLen));
+ } else {
+ SET_RES_DRV(pcmd->result, DRIVER_SENSE);
+ pcmd->use_sg = pSRB->SavedSGCount;
+ //pSRB->ScsiCmdLen = (u8) (pSRB->Segment1[0] >> 8);
+ DEBUG0 (printk ("DC390: RETRY pid %li (%02x), target %02i-%02i\n", pcmd->pid, pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun));
+ pSRB->TotalXferredLen = 0;
+ SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
+ }
+ }
+ goto cmd_done;
}
- else if (pDCB->pWaitingSRB)
+ if( status )
{
- 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);
+ if( status_byte(status) == CHECK_CONDITION )
+ {
+ if (dc390_RequestSense(pACB, pDCB, pSRB)) {
+ SET_RES_DID(pcmd->result, DID_ERROR);
+ goto cmd_done;
+ }
+ return;
+ }
+ else if( status_byte(status) == QUEUE_FULL )
+ {
+ scsi_track_queue_full(pcmd->device, pDCB->GoingSRBCnt - 1);
+ pcmd->use_sg = pSRB->SavedSGCount;
+ DEBUG0 (printk ("DC390: RETRY pid %li (%02x), target %02i-%02i\n", pcmd->pid, pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun));
+ pSRB->TotalXferredLen = 0;
+ SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
+ }
+ else if(status == SCSI_STAT_SEL_TIMEOUT)
+ {
+ pSRB->AdaptStatus = H_SEL_TIMEOUT;
+ pSRB->TargetStatus = 0;
+ pcmd->result = MK_RES(0,DID_NO_CONNECT,0,0);
+ /* Devices are removed below ... */
+ }
+ else if (status_byte(status) == BUSY &&
+ (pcmd->cmnd[0] == TEST_UNIT_READY || pcmd->cmnd[0] == INQUIRY) &&
+ pACB->scan_devices)
+ {
+ pSRB->AdaptStatus = 0;
+ pSRB->TargetStatus = status;
+ pcmd->result = MK_RES(0,0,pSRB->EndMessage,/*status*/0);
+ }
+ else
+ { /* Another error */
+ pSRB->TotalXferredLen = 0;
+ SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
+ goto cmd_done;
+ }
}
else
- {
- 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)
+ { /* Target status == 0 */
+ status = pSRB->AdaptStatus;
+ if(status & H_OVER_UNDER_RUN)
{
- dc390_Query_append (cmd, pACB);
- dc390_Waiting_process (pACB);
+ pSRB->TargetStatus = 0;
+ SET_RES_DID(pcmd->result,DID_OK);
+ SET_RES_MSG(pcmd->result,pSRB->EndMessage);
}
- else
+ else if( pSRB->SRBStatus & PARITY_ERROR)
{
- dc390_BuildSRB (cmd, pDCB, pSRB);
- dc390_SendSRB (pACB, pSRB);
+ //pcmd->result = MK_RES(0,DID_PARITY,pSRB->EndMessage,0);
+ SET_RES_DID(pcmd->result,DID_PARITY);
+ SET_RES_MSG(pcmd->result,pSRB->EndMessage);
+ }
+ else /* No error */
+ {
+ pSRB->AdaptStatus = 0;
+ pSRB->TargetStatus = 0;
+ SET_RES_DID(pcmd->result,DID_OK);
}
}
- DC390_UNLOCK_ACB;
- DEBUG1(printk (KERN_DEBUG " ... command (pid %li) queued successfully.\n", cmd->pid));
- return(0);
+cmd_done:
+ pcmd->resid = pcmd->request_bufflen - pSRB->TotalXferredLen;
+
+ dc390_Going_remove (pDCB, pSRB);
+ /* Add to free list */
+ dc390_Free_insert (pACB, pSRB);
+
+ DEBUG0(printk (KERN_DEBUG "DC390: SRBdone: done pid %li\n", pcmd->pid));
+ pcmd->scsi_done (pcmd);
+
+ return;
}
-/* 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>
+/* Remove all SRBs from Going list and inform midlevel */
+static void
+dc390_DoingSRB_Done(struct dc390_acb* pACB, struct scsi_cmnd *cmd)
+{
+ struct dc390_dcb *pDCB, *pdcb;
+ struct dc390_srb *psrb, *psrb2;
+ int i;
+ struct scsi_cmnd *pcmd;
-/*
- * 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.
- *
- */
+ pDCB = pACB->pLinkDCB;
+ pdcb = pDCB;
+ if (! pdcb) return;
+ do
+ {
+ psrb = pdcb->pGoingSRB;
+ for (i = 0; i < pdcb->GoingSRBCnt; i++)
+ {
+ psrb2 = psrb->pNextSRB;
+ pcmd = psrb->pcmd;
+ dc390_Free_insert (pACB, psrb);
+ psrb = psrb2;
+ }
+ pdcb->GoingSRBCnt = 0;
+ pdcb->pGoingSRB = NULL;
+ pdcb->TagMask = 0;
+ pdcb = pdcb->pNextDCB;
+ } while( pdcb != pDCB );
+}
-static 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;
- }
- }
- }
+static void
+dc390_ResetSCSIBus( struct dc390_acb* pACB )
+{
+ //DC390_write8 (ScsiCmd, RST_DEVICE_CMD);
+ //udelay (250);
+ //DC390_write8 (ScsiCmd, NOP_CMD);
- 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;
+ DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
+ DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
+ DC390_write8 (ScsiCmd, RST_SCSI_BUS_CMD);
+ pACB->Connected = 0;
+
+ return;
}
-/***********************************************************************
- * 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 (struct scsi_device *sdev, struct block_device *bdev,
- sector_t capacity, int geom[])
+static void
+dc390_ScsiRstDetect( struct dc390_acb* pACB )
{
- int heads, sectors, cylinders;
- PACB pACB = (PACB) sdev->host->hostdata;
- int ret_code = -1;
- int size = capacity;
- unsigned char *buf;
+ printk ("DC390: Rst_Detect: laststat = %08x\n", dc390_laststatus);
+ //DEBUG0(printk(KERN_INFO "RST_DETECT,"));
- if ((buf = scsi_bios_ptable(bdev)))
- {
- /* 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);
+ DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
+ /* Unlock before ? */
+ /* delay half a second */
+ udelay (1000);
+ DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
+ pACB->pScsiHost->last_reset = jiffies + 5*HZ/2
+ + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
+ pACB->Connected = 0;
+
+ if( pACB->ACBFlag & RESET_DEV )
+ pACB->ACBFlag |= RESET_DONE;
+ else
+ { /* Reset was issued by sb else */
+ pACB->ACBFlag |= RESET_DETECT;
+
+ dc390_ResetDevParam( pACB );
+ dc390_DoingSRB_Done( pACB, NULL);
+ //dc390_RecoverSRB( pACB );
+ pACB->pActiveDCB = NULL;
+ pACB->ACBFlag = 0;
}
- if (ret_code == -1)
- {
- heads = 64;
- sectors = 32;
- cylinders = size / (heads * sectors);
+ return;
+}
- if ( (pACB->Gmode2 & GREATER_1G) && (cylinders > 1024) )
- {
- heads = 255;
- sectors = 63;
- cylinders = size / (heads * sectors);
+static int DC390_queuecommand(struct scsi_cmnd *cmd,
+ void (*done)(struct scsi_cmnd *))
+{
+ struct scsi_device *sdev = cmd->device;
+ struct dc390_acb *acb = (struct dc390_acb *)sdev->host->hostdata;
+ struct dc390_dcb *dcb = sdev->hostdata;
+ struct dc390_srb *srb;
+
+ if (sdev->queue_depth <= dcb->GoingSRBCnt)
+ goto device_busy;
+ if (acb->pActiveDCB)
+ goto host_busy;
+ if (acb->ACBFlag & (RESET_DETECT|RESET_DONE|RESET_DEV))
+ goto host_busy;
+
+ srb = acb->pFreeSRB;
+ if (unlikely(srb == NULL))
+ goto host_busy;
+
+ cmd->scsi_done = done;
+ cmd->result = 0;
+ acb->Cmds++;
+
+ acb->pFreeSRB = srb->pNextSRB;
+ srb->pNextSRB = NULL;
+
+ srb->pSRBDCB = dcb;
+ srb->pcmd = cmd;
+ cmd->host_scribble = (char *)srb;
+
+ srb->SGIndex = 0;
+ srb->AdaptStatus = 0;
+ srb->TargetStatus = 0;
+ srb->MsgCnt = 0;
+
+ srb->SRBStatus = 0;
+ srb->SRBFlag = 0;
+ srb->SRBState = 0;
+ srb->TotalXferredLen = 0;
+ srb->SGBusAddr = 0;
+ srb->SGToBeXferLen = 0;
+ srb->ScsiPhase = 0;
+ srb->EndMessage = 0;
+ srb->TagNumber = SCSI_NO_TAG;
+
+ if (dc390_StartSCSI(acb, dcb, srb)) {
+ dc390_Free_insert(acb, srb);
+ goto host_busy;
}
- geom[0] = heads;
- geom[1] = sectors;
- geom[2] = cylinders;
- }
+ dc390_Going_append(dcb, srb);
- return (0);
-}
-#else
-int DC390_bios_param (struct scsi_device *sdev, struct block_device *bdev,
- sector_t capacity, int geom[])
-{
- return scsicam_bios_param (bdev, capacity, geom);
-}
-#endif
+ return 0;
+ host_busy:
+ return SCSI_MLQUEUE_HOST_BUSY;
-void dc390_dumpinfo (PACB pACB, PDCB pDCB, PSRB pSRB)
+ device_busy:
+ return SCSI_MLQUEUE_DEVICE_BUSY;
+}
+
+static void dc390_dumpinfo (struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
{
- USHORT pstat; PDEVDECL1;
+ struct pci_dev *pdev;
+ u16 pstat;
+
if (!pDCB) pDCB = pACB->pActiveDCB;
if (!pSRB && pDCB) pSRB = pDCB->pActiveSRB;
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);
+
+ pdev = pACB->pdev;
+ pci_read_config_word(pdev, PCI_STATUS, &pstat);
printk ("DC390: Register dump: PCI Status: %04x\n", pstat);
- printk ("DC390: In case of driver trouble read linux/Documentation/scsi/tmscsim.txt\n");
+ printk ("DC390: In case of driver trouble read Documentation/scsi/tmscsim.txt\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)
+static int DC390_abort(struct scsi_cmnd *cmd)
{
- PDCB pDCB;
- PSRB pSRB, psrb;
- UINT count, i;
- int status;
- //ULONG sbac;
- PACB pACB = (PACB) cmd->device->host->hostdata;
- DC390_AFLAGS;
-
- DC390_LOCK_ACB;
-
- printk ("DC390: Abort command (pid %li, Device %02i-%02i)\n",
- cmd->pid, cmd->device->id, cmd->device->lun);
-
- /* First scan Query list */
- if( pACB->QueryCnt )
- {
- struct scsi_cmnd_list *t, *pcmd_l;
- list_for_each_entry_safe(pcmd_l, t, &pACB->cmdq, scp.list)
- if( (struct scsi_cmnd*)pcmd_l == cmd )
- {
- /* Found: Dequeue */
- list_del(&pcmd_l->scp.list);
- pACB->QueryCnt--;
- status = SCSI_ABORT_SUCCESS;
- goto ABO_X;
- }
- }
-
- pDCB = dc390_findDCB (pACB, cmd->device->id, cmd->device->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;
+ struct dc390_acb *pACB = (struct dc390_acb*) cmd->device->host->hostdata;
+ struct dc390_dcb *pDCB = (struct dc390_dcb*) cmd->device->hostdata;
- /* 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--;
- INIT_LIST_HEAD((struct list_head*)&cmd->SCp);
- status = SCSI_ABORT_SUCCESS;
- goto ABO_X;
- }
+ scmd_printk(KERN_WARNING, cmd,
+ "DC390: Abort command (pid %li)\n", cmd->pid);
- /* 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;
- }
- }
- }
+ /* abort() is too stupid for already sent commands at the moment.
+ * If it's called we are in trouble anyway, so let's dump some info
+ * into the syslog at least. (KG, 98/08/20,99/06/20) */
+ dc390_dumpinfo(pACB, pDCB, NULL);
-NOT_RUN:
- status = SCSI_ABORT_NOT_RUNNING;
+ pDCB->DCBFlag |= ABORT_DEV_;
+ printk(KERN_INFO "DC390: Aborted pid %li\n", cmd->pid);
-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 );
+ return FAILED;
}
-static void dc390_ResetDevParam( PACB pACB )
+static void dc390_ResetDevParam( struct dc390_acb* pACB )
{
- PDCB pDCB, pdcb;
+ struct dc390_dcb *pDCB, *pdcb;
pDCB = pACB->pLinkDCB;
if (! pDCB) return;
}
-#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)
-{
- UCHAR bval;
- PACB pACB = (PACB) cmd->device->host->hostdata;
- DC390_AFLAGS;
-
- 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;
- if (!pDCB) return;
- pDCB2 = 0;
- 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 )
+static int DC390_bus_reset (struct scsi_cmnd *cmd)
{
- UINT count, i;
+ struct dc390_acb* pACB = (struct dc390_acb*) cmd->device->host->hostdata;
+ u8 bval;
- 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;
-
- 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;
- INIT_LIST_HEAD(&pACB->cmdq);
- 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;
+ spin_lock_irq(cmd->device->host->host_lock);
- if (request_region (io_port, psh->n_io_port, "tmscsim") == NULL) {
- printk(KERN_ERR "DC390: register IO ports error!\n");
- return( -1 );
- }
+ bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST;
+ DC390_write8(CtrlReg1, bval); /* disable IRQ on bus reset */
- DC390_read8_ (INT_Status, io_port); /* Reset Pending INT */
+ pACB->ACBFlag |= RESET_DEV;
+ dc390_ResetSCSIBus(pACB);
- 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 );
- }
+ dc390_ResetDevParam(pACB);
+ mdelay(1);
+ pACB->pScsiHost->last_reset = jiffies + 3*HZ/2
+ + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
+
+ DC390_write8(ScsiCmd, CLEAR_FIFO_CMD);
+ DC390_read8(INT_Status); /* Reset Pending INT */
- 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_DoingSRB_Done(pACB, cmd);
- DC390_write8 (CtrlReg1, DIS_INT_ON_SCSI_RST | psh->this_id); /* Disable SCSI bus reset interrupt */
+ pACB->pActiveDCB = NULL;
+ pACB->ACBFlag = 0;
- 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 */
+ bval = DC390_read8(CtrlReg1) & ~DIS_INT_ON_SCSI_RST;
+ DC390_write8(CtrlReg1, bval); /* re-enable interrupt */
- return(0);
-}
+ spin_unlock_irq(cmd->device->host->host_lock);
+ return SUCCESS;
+}
-/***********************************************************************
- * Function : static int DC390_init (struct Scsi_Host *host, ...)
- *
- * Purpose : initialize the internal structures for a given SCSI host
+/**
+ * dc390_slave_alloc - Called by the scsi mid layer to tell us about a new
+ * scsi device that we need to deal with.
*
- * 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)
+ * @scsi_device: The new scsi device that we need to handle.
+ */
+static int dc390_slave_alloc(struct scsi_device *scsi_device)
{
- PSH psh;
- PACB pACB;
- DC390_AFLAGS;
-
- if (dc390_CheckEEpromCheckSum (PDEV, index))
- {
- 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]);
- }
- else
- {
- dc390_check_for_safe_settings ();
- dc390_EEprom_Override (index);
- }
+ struct dc390_acb *pACB = (struct dc390_acb*) scsi_device->host->hostdata;
+ struct dc390_dcb *pDCB, *pDCB2 = NULL;
+ uint id = scsi_device->id;
+ uint lun = scsi_device->lun;
+
+ pDCB = kmalloc(sizeof(struct dc390_dcb), GFP_KERNEL);
+ if (!pDCB)
+ return -ENOMEM;
+ memset(pDCB, 0, sizeof(struct dc390_dcb));
+
+ if (!pACB->DCBCnt++) {
+ pACB->pLinkDCB = pDCB;
+ pACB->pDCBRunRobin = pDCB;
+ } else {
+ pACB->pLastDCB->pNextDCB = pDCB;
+ }
- psh = scsi_register( psht, sizeof(DC390_ACB) );
- if( !psh ) return( -1 );
-
- scsi_set_device(psh, &pdev->dev);
- pACB = (PACB) psh->hostdata;
- DC390_LOCKA_INIT;
- DC390_LOCK_ACB;
+ pDCB->pNextDCB = pACB->pLinkDCB;
+ pACB->pLastDCB = pDCB;
-#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
+ pDCB->pDCBACB = pACB;
+ pDCB->TargetID = id;
+ pDCB->TargetLUN = lun;
- DEBUG0(printk(KERN_INFO "DC390: pSH = %8x, Index %02i\n", (UINT) psh, index));
+ /*
+ * Some values are for all LUNs: Copy them
+ * In a clean way: We would have an own structure for a SCSI-ID
+ */
+ if (lun && (pDCB2 = dc390_findDCB(pACB, id, 0))) {
+ pDCB->DevMode = pDCB2->DevMode;
+ pDCB->SyncMode = pDCB2->SyncMode & SYNC_NEGO_DONE;
+ pDCB->SyncPeriod = pDCB2->SyncPeriod;
+ pDCB->SyncOffset = pDCB2->SyncOffset;
+ pDCB->NegoPeriod = pDCB2->NegoPeriod;
+
+ pDCB->CtrlR3 = pDCB2->CtrlR3;
+ pDCB->CtrlR4 = pDCB2->CtrlR4;
+ } else {
+ u8 index = pACB->AdapterIndex;
+ PEEprom prom = (PEEprom) &dc390_eepromBuf[index][id << 2];
+
+ pDCB->DevMode = prom->EE_MODE1;
+ pDCB->NegoPeriod =
+ (dc390_clock_period1[prom->EE_SPEED] * 25) >> 2;
+ pDCB->CtrlR3 = FAST_CLK;
+ pDCB->CtrlR4 = pACB->glitch_cfg | CTRL4_RESERVED;
+ if (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION)
+ pDCB->CtrlR4 |= NEGATE_REQACKDATA | NEGATE_REQACK;
+ }
- dc390_initACB( psh, io_port, Irq, index );
-
- PDEVSET;
+ if (pDCB->DevMode & SYNC_NEGO_)
+ pDCB->SyncMode |= SYNC_ENABLE;
+ else {
+ pDCB->SyncMode = 0;
+ pDCB->SyncOffset &= ~0x0f;
+ }
- if( !dc390_initAdapter( psh, io_port, Irq, index ) )
- {
- DEBUG0(printk("DC390: 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) ));
+ pDCB->CtrlR1 = pACB->pScsiHost->this_id;
+ if (pDCB->DevMode & PARITY_CHK_)
+ pDCB->CtrlR1 |= PARITY_ERR_REPO;
- DC390_UNLOCK_ACB;
- return (0);
- }
- else
- {
- //dc390_pSH_start = NULL;
- scsi_unregister( psh );
- DC390_UNLOCK_ACB;
- return( -1 );
- }
+ pACB->scan_devices = 1;
+ scsi_device->hostdata = pDCB;
+ return 0;
}
-
-/***********************************************************************
- * 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
+/**
+ * dc390_slave_destroy - Called by the scsi mid layer to tell us about a
+ * device that is going away.
*
- ***********************************************************************/
-
-#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)
+ * @scsi_device: The scsi device that we need to remove.
+ */
+static void dc390_slave_destroy(struct scsi_device *scsi_device)
{
- USHORT cmd;
- UCHAR lat;
-
- PCI_READ_CONFIG_WORD (PDEV, PCI_COMMAND, &cmd);
+ struct dc390_acb* pACB = (struct dc390_acb*) scsi_device->host->hostdata;
+ struct dc390_dcb* pDCB = (struct dc390_dcb*) scsi_device->hostdata;
+ struct dc390_dcb* pPrevDCB = pACB->pLinkDCB;
+
+ pACB->scan_devices = 0;
+
+ BUG_ON(pDCB->GoingSRBCnt > 1);
- if (! (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);
+ if (pDCB == pACB->pLinkDCB) {
+ if (pACB->pLastDCB == pDCB) {
+ pDCB->pNextDCB = NULL;
+ pACB->pLastDCB = NULL;
+ }
+ pACB->pLinkDCB = pDCB->pNextDCB;
+ } else {
+ while (pPrevDCB->pNextDCB != pDCB)
+ pPrevDCB = pPrevDCB->pNextDCB;
+ pPrevDCB->pNextDCB = pDCB->pNextDCB;
+ if (pDCB == pACB->pLastDCB)
+ pACB->pLastDCB = pPrevDCB;
}
-
-}
-#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));
-}
+ if (pDCB == pACB->pActiveDCB)
+ pACB->pActiveDCB = NULL;
+ if (pDCB == pACB->pLinkDCB)
+ pACB->pLinkDCB = pDCB->pNextDCB;
+ if (pDCB == pACB->pDCBRunRobin)
+ pACB->pDCBRunRobin = pDCB->pNextDCB;
+ kfree(pDCB);
+ pACB->DCBCnt--;
+}
-int __init DC390_detect (Scsi_Host_Template *psht)
+static int dc390_slave_configure(struct scsi_device *sdev)
{
- PDEVDECL0;
- UCHAR irq;
- ULONG io_port;
-
- //dc390_pSHT_start = psht;
- dc390_pACB_start = NULL;
+ struct dc390_acb *acb = (struct dc390_acb *)sdev->host->hostdata;
+ struct dc390_dcb *dcb = (struct dc390_dcb *)sdev->hostdata;
- 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
- 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++;
- }
+ acb->scan_devices = 0;
+ if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) {
+ dcb->SyncMode |= EN_TAG_QUEUEING;
+ scsi_activate_tcq(sdev, acb->TagMaxNum);
}
- 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);
- return( dc390_adapterCnt );
-}
+ return 0;
+}
+
+static struct scsi_host_template driver_template = {
+ .module = THIS_MODULE,
+ .proc_name = "tmscsim",
+ .name = DC390_BANNER " V" DC390_VERSION,
+ .slave_alloc = dc390_slave_alloc,
+ .slave_configure = dc390_slave_configure,
+ .slave_destroy = dc390_slave_destroy,
+ .queuecommand = DC390_queuecommand,
+ .eh_abort_handler = DC390_abort,
+ .eh_bus_reset_handler = DC390_bus_reset,
+ .can_queue = 1,
+ .this_id = 7,
+ .sg_tablesize = SG_ALL,
+ .cmd_per_lun = 1,
+ .use_clustering = DISABLE_CLUSTERING,
+};
/***********************************************************************
- * Functions: dc390_inquiry(), dc390_inquiry_done()
+ * Functions for access to DC390 EEPROM
+ * and some to emulate it
*
- * 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)
+static void __devinit dc390_eeprom_prepare_read(struct pci_dev *pdev, u8 cmd)
{
- printk (KERN_INFO "DC390: INQUIRY (ID %02x LUN %02x) returned %08x\n",
- cmd->device->id, cmd->device->lun, cmd->result);
- if (cmd->result)
- {
- PACB pACB = (PACB)cmd->device->host->hostdata;
- PDCB pDCB = dc390_findDCB (pACB, cmd->device->id, cmd->device->lun);
- printk ("DC390: Unsetting DsCn, Sync and TagQ!\n");
- if (pDCB)
- {
- pDCB->DevMode &= ~(SYNC_NEGO_ | TAG_QUEUEING_ | EN_DISCONNECT_ );
- dc390_updateDCB (pACB, pDCB);
+ u8 carryFlag = 1, j = 0x80, bval;
+ int i;
+
+ for (i = 0; i < 9; i++) {
+ if (carryFlag) {
+ pci_write_config_byte(pdev, 0x80, 0x40);
+ bval = 0xc0;
+ } else
+ bval = 0x80;
+
+ udelay(160);
+ pci_write_config_byte(pdev, 0x80, bval);
+ udelay(160);
+ pci_write_config_byte(pdev, 0x80, 0);
+ udelay(160);
+
+ carryFlag = (cmd & j) ? 1 : 0;
+ j >>= 1;
}
- }
- kfree (cmd);
}
-void dc390_inquiry (PACB pACB, PDCB pDCB)
+static u16 __devinit dc390_eeprom_get_data(struct pci_dev *pdev)
{
- 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;
-/* TODO FIXME */
-/* cmd->host = pACB->pScsiHost; */
- cmd->device->id = pDCB->TargetID;
- cmd->device->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);
-}
+ int i;
+ u16 wval = 0;
+ u8 bval;
-/***********************************************************************
- * 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
- ***********************************************************************/
+ for (i = 0; i < 16; i++) {
+ wval <<= 1;
-static void dc390_sendstart_done (Scsi_Cmnd* cmd)
-{
- printk (KERN_INFO "DC390: SENDSTART (ID %02x LUN %02x) returned %08x\n",
- cmd->device->id, cmd->device->lun, cmd->result);
- kfree (cmd);
-}
+ 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);
-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;
-/* TODO FIXME */
-/* cmd->host = pACB->pScsiHost; */
- cmd->device->id = pDCB->TargetID;
- cmd->device->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
- *******************************************************************/
+ if (bval == 0x22)
+ wval |= 1;
+ }
-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;
+ return wval;
}
-#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)
+static void __devinit dc390_read_eeprom(struct pci_dev *pdev, u16 *ptr)
{
- switch (**pos)
- {
- case 'Y': *var |= bmask; break;
- case 'N': *var &= ~bmask; break;
- case '-': break;
- default: return -1;
- }
- *pos = strsep (buffer, " \t\n:=,;");
- return 0;
-}
+ u8 cmd = EEPROM_READ, i;
-#define YESNO(buffer, pos, var, bmask) \
- if (dc390_yesno (&buffer, &pos, &var, bmask)) goto einv; \
- else dc390_updateDCB (pACB, pDCB); \
- if (!pos) goto ok
+ for (i = 0; i < 0x40; i++) {
+ pci_write_config_byte(pdev, 0xc0, 0);
+ udelay(160);
-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:=,;");
+ dc390_eeprom_prepare_read(pdev, cmd++);
+ *ptr++ = dc390_eeprom_get_data(pdev);
- }
- return 0;
+ pci_write_config_byte(pdev, 0x80, 0);
+ pci_write_config_byte(pdev, 0x80, 0);
+ udelay(160);
+ }
}
-#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)
+/* Override EEprom values with explicitly set values */
+static void __devinit dc390_eeprom_override(u8 index)
{
- 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;
+ u8 *ptr = (u8 *) dc390_eepromBuf[index], id;
+
+ /* Adapter Settings */
+ if (tmscsim[0] != -2)
+ ptr[EE_ADAPT_SCSI_ID] = (u8)tmscsim[0]; /* Adapter ID */
+ if (tmscsim[3] != -2)
+ ptr[EE_MODE2] = (u8)tmscsim[3];
+ if (tmscsim[5] != -2)
+ ptr[EE_DELAY] = tmscsim[5]; /* Reset delay */
+ if (tmscsim[4] != -2)
+ ptr[EE_TAG_CMD_NUM] = (u8)tmscsim[4]; /* Tagged Cmds */
+
+ /* Device Settings */
+ for (id = 0; id < MAX_SCSI_ID; id++) {
+ if (tmscsim[2] != -2)
+ ptr[id << 2] = (u8)tmscsim[2]; /* EE_MODE1 */
+ if (tmscsim[1] != -2)
+ ptr[(id << 2) + 1] = (u8)tmscsim[1]; /* EE_Speed */
+ }
}
-#endif
-int dc390_set_info (char *buffer, int length, PACB pACB)
+static int __devinitdata tmscsim_def[] = {
+ 7,
+ 0 /* 10MHz */,
+ PARITY_CHK_ | SEND_START_ | EN_DISCONNECT_ | SYNC_NEGO_ | TAG_QUEUEING_,
+ MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION | LUN_CHECK,
+ 3 /* 16 Tags per LUN */,
+ 1 /* s delay after Reset */,
+};
+
+/* Copy defaults over set values where missing */
+static void __devinit dc390_fill_with_defaults (void)
{
- 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;
+ int i;
- olddevmode = pDCB->SyncOffset;
- /* SyncOffs */
- if (*pos != '-')
- {
- SCANF (buffer, pos, p0, dum, 0, 0x0f);
- pDCB->SyncOffset = dum;
- if (pDCB->SyncOffset > olddevmode) needs_inquiry++;
+ for (i = 0; i < 6; i++) {
+ if (tmscsim[i] < 0 || tmscsim[i] > 255)
+ tmscsim[i] = tmscsim_def[i];
}
- 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:=,;");
+ /* 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;
+}
- }
- 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;
- /* TODO FIXME */
- /* cmd.host = pACB->pScsiHost; */
- printk (KERN_WARNING "DC390: Driver reset requested!\n");
- DC390_UNLOCK_ACB;
- DC390_reset (&cmd);
- DC390_UNLOCK_IO(pACB->pScsiHost);
- }
- return (length);
+static void __devinit dc390_check_eeprom(struct pci_dev *pdev, u8 index)
+{
+ u8 interpd[] = {1, 3, 5, 10, 16, 30, 60, 120};
+ u8 EEbuf[128];
+ u16 *ptr = (u16 *)EEbuf, wval = 0;
+ int i;
- 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);
+ dc390_read_eeprom(pdev, ptr);
+ memcpy(dc390_eepromBuf[index], EEbuf, EE_ADAPT_SCSI_ID);
+ memcpy(&dc390_eepromBuf[index][EE_ADAPT_SCSI_ID],
+ &EEbuf[REAL_EE_ADAPT_SCSI_ID], EE_LEN - EE_ADAPT_SCSI_ID);
- 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);
+ dc390_eepromBuf[index][EE_DELAY] = interpd[dc390_eepromBuf[index][EE_DELAY]];
- 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);
+ for (i = 0; i < 0x40; i++, ptr++)
+ wval += *ptr;
- 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);
+ /* no Tekram EEprom found */
+ if (wval != 0x1234) {
+ int speed;
- einv_dev:
- printk (KERN_WARNING "DC390: Ignore cmnd to invalid Dev(Idx) %i. Valid range: 0 - %i.\n",
- dev, pACB->DCBCnt - 1);
- DC390_UNLOCK_ACB;
- DC390_UNLOCK_IO(pACB->pScsiHost);
- return (-EINVAL);
-}
+ printk(KERN_INFO "DC390_init: No EEPROM found! Trying default settings ...\n");
-#undef SEARCH
-#undef YESNO
-#undef SCANF
+ /*
+ * XXX(hch): bogus, because we might have tekram and
+ * non-tekram hbas in a single machine.
+ */
+ dc390_fill_with_defaults();
-/********************************************************************
- * 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
- *
- ********************************************************************/
+ speed = dc390_clock_speed[tmscsim[1]];
+ printk(KERN_INFO "DC390: Used defaults: AdaptID=%i, SpeedIdx=%i (%i.%i MHz), "
+ "DevMode=0x%02x, AdaptMode=0x%02x, TaggedCmnds=%i (%i), DelayReset=%is\n",
+ tmscsim[0], tmscsim[1], speed / 10, speed % 10,
+ (u8)tmscsim[2], (u8)tmscsim[3], tmscsim[4], 2 << (tmscsim[4]), tmscsim[5]);
+ }
+}
-#undef SPRINTF
-#define SPRINTF(args...) pos += sprintf(pos, ## args)
+static void __devinit dc390_init_hw(struct dc390_acb *pACB, u8 index)
+{
+ struct Scsi_Host *shost = pACB->pScsiHost;
+ u8 dstate;
-#define YESNO(YN) \
- if (YN) SPRINTF(" Yes "); \
- else SPRINTF(" No ")
+ /* Disable SCSI bus reset interrupt */
+ DC390_write8(CtrlReg1, DIS_INT_ON_SCSI_RST | shost->this_id);
+ if (pACB->Gmode2 & RST_SCSI_BUS) {
+ dc390_ResetSCSIBus(pACB);
+ udelay(1000);
+ shost->last_reset = jiffies + HZ/2 +
+ HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
+ }
-int DC390_proc_info (struct Scsi_Host *shpnt, char *buffer, char **start,
- off_t offset, int length, int inout)
-{
- int dev, spd, spd1;
- char *pos = buffer;
- struct scsi_cmnd_list *cl;
- PACB pACB;
- PDCB pDCB;
- DC390_AFLAGS;
+ pACB->ACBFlag = 0;
- pACB = dc390_pACB_start;
+ /* Reset Pending INT */
+ DC390_read8(INT_Status);
+
+ /* 250ms selection timeout */
+ DC390_write8(Scsi_TimeOut, SEL_TIMEOUT);
+
+ /* Conversion factor = 0 , 40MHz clock */
+ DC390_write8(Clk_Factor, CLK_FREQ_40MHZ);
+
+ /* NOP cmd - clear command register */
+ DC390_write8(ScsiCmd, NOP_CMD);
+
+ /* Enable Feature and SCSI-2 */
+ DC390_write8(CtrlReg2, EN_FEATURE+EN_SCSI2_CMD);
+
+ /* Fast clock */
+ DC390_write8(CtrlReg3, FAST_CLK);
- while(pACB != (PACB)-1)
- {
- if (shpnt == pACB->pScsiHost)
- break;
- pACB = pACB->pNextACB;
- }
+ /* Negation */
+ DC390_write8(CtrlReg4, pACB->glitch_cfg | /* glitch eater */
+ (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION) ?
+ NEGATE_REQACKDATA : 0);
+
+ /* Clear Transfer Count High: ID */
+ DC390_write8(CtcReg_High, 0);
+ DC390_write8(DMA_Cmd, DMA_IDLE_CMD);
+ DC390_write8(ScsiCmd, CLEAR_FIFO_CMD);
+ DC390_write32(DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT);
- if (pACB == (PACB)-1) return(-ESRCH);
+ dstate = DC390_read8(DMA_Status);
+ DC390_write8(DMA_Status, dstate);
+}
- 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);
+static int __devinit dc390_probe_one(struct pci_dev *pdev,
+ const struct pci_device_id *id)
+{
+ struct dc390_acb *pACB;
+ struct Scsi_Host *shost;
+ unsigned long io_port;
+ int error = -ENODEV, i;
- DC390_LOCK_ACB;
+ if (pci_enable_device(pdev))
+ goto out;
- 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);
+ pci_set_master(pdev);
- 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]);
+ error = -ENOMEM;
+ shost = scsi_host_alloc(&driver_template, sizeof(struct dc390_acb));
+ if (!shost)
+ goto out_disable_device;
- 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);
+ pACB = (struct dc390_acb *)shost->hostdata;
+ memset(pACB, 0, sizeof(struct dc390_acb));
- 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]);
+ dc390_check_eeprom(pdev, dc390_adapterCnt);
+ dc390_eeprom_override(dc390_adapterCnt);
- SPRINTF("Idx ID LUN Prty Sync DsCn SndS TagQ NegoPeriod SyncSpeed SyncOffs MaxCmd\n");
+ io_port = pci_resource_start(pdev, 0);
- 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);
- list_for_each_entry(cl, &pACB->cmdq, scp.list)
- SPRINTF (" %li", ((struct scsi_cmnd*)cl)->pid);
- if (timer_pending(&pACB->Waiting_Timer)) SPRINTF ("Waiting queue timer running\n");
- else SPRINTF ("\n");
- pDCB = pACB->pLinkDCB;
+ shost->this_id = dc390_eepromBuf[dc390_adapterCnt][EE_ADAPT_SCSI_ID];
+ shost->io_port = io_port;
+ shost->n_io_port = 0x80;
+ shost->irq = pdev->irq;
+ shost->base = io_port;
+ shost->unique_id = io_port;
+ shost->last_reset = jiffies;
- 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;
- }
+ pACB->pScsiHost = shost;
+ pACB->IOPortBase = (u16) io_port;
+ pACB->IRQLevel = pdev->irq;
-#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
-
+ shost->max_id = 8;
- DC390_UNLOCK_ACB;
- *start = buffer + offset;
+ if (shost->max_id - 1 ==
+ dc390_eepromBuf[dc390_adapterCnt][EE_ADAPT_SCSI_ID])
+ shost->max_id--;
- if (pos - buffer < offset)
- return 0;
- else if (pos - buffer - offset < length)
- return pos - buffer - offset;
- else
- return length;
-}
+ if (dc390_eepromBuf[dc390_adapterCnt][EE_MODE2] & LUN_CHECK)
+ shost->max_lun = 8;
+ else
+ shost->max_lun = 1;
+
+ pACB->pFreeSRB = pACB->SRB_array;
+ pACB->SRBCount = MAX_SRB_CNT;
+ pACB->AdapterIndex = dc390_adapterCnt;
+ pACB->TagMaxNum =
+ 2 << dc390_eepromBuf[dc390_adapterCnt][EE_TAG_CMD_NUM];
+ pACB->Gmode2 = dc390_eepromBuf[dc390_adapterCnt][EE_MODE2];
+
+ for (i = 0; i < pACB->SRBCount-1; i++)
+ pACB->SRB_array[i].pNextSRB = &pACB->SRB_array[i+1];
+ pACB->SRB_array[pACB->SRBCount-1].pNextSRB = NULL;
+ pACB->pTmpSRB = &pACB->TmpSRB;
+
+ pACB->sel_timeout = SEL_TIMEOUT;
+ pACB->glitch_cfg = EATER_25NS;
+ pACB->pdev = pdev;
+
+ if (!request_region(io_port, shost->n_io_port, "tmscsim")) {
+ printk(KERN_ERR "DC390: register IO ports error!\n");
+ goto out_host_put;
+ }
-#undef YESNO
-#undef SPRINTF
+ /* Reset Pending INT */
+ DC390_read8_(INT_Status, io_port);
-/***********************************************************************
- * 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.
+ if (request_irq(pdev->irq, do_DC390_Interrupt, SA_SHIRQ,
+ "tmscsim", pACB)) {
+ printk(KERN_ERR "DC390: register IRQ error!\n");
+ goto out_release_region;
+ }
+
+ dc390_init_hw(pACB, dc390_adapterCnt);
+
+ dc390_adapterCnt++;
+
+ pci_set_drvdata(pdev, shost);
+
+ error = scsi_add_host(shost, &pdev->dev);
+ if (error)
+ goto out_free_irq;
+ scsi_scan_host(shost);
+ return 0;
+
+ out_free_irq:
+ free_irq(pdev->irq, pACB);
+ out_release_region:
+ release_region(io_port, shost->n_io_port);
+ out_host_put:
+ scsi_host_put(shost);
+ out_disable_device:
+ pci_disable_device(pdev);
+ out:
+ return error;
+}
+
+/**
+ * dc390_remove_one - Called to remove a single instance of the adapter.
*
- * Returns : 0 on success
- ***********************************************************************/
-static int dc390_shutdown (struct Scsi_Host *host)
+ * @dev: The PCI device to remove.
+ */
+static void __devexit dc390_remove_one(struct pci_dev *dev)
{
- UCHAR bval;
- PACB pACB = (PACB)(host->hostdata);
-
-/* pACB->soft_reset(host); */
+ struct Scsi_Host *scsi_host = pci_get_drvdata(dev);
+ unsigned long iflags;
+ struct dc390_acb* pACB = (struct dc390_acb*) scsi_host->hostdata;
+ u8 bval;
- printk(KERN_INFO "DC390: shutdown\n");
+ scsi_remove_host(scsi_host);
- 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);
+ spin_lock_irqsave(scsi_host->host_lock, iflags);
+ pACB->ACBFlag = RESET_DEV;
+ bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST;
+ DC390_write8 (CtrlReg1, bval); /* disable interrupt */
+ if (pACB->Gmode2 & RST_SCSI_BUS)
+ dc390_ResetSCSIBus(pACB);
+ spin_unlock_irqrestore(scsi_host->host_lock, iflags);
- if (timer_pending (&pACB->Waiting_Timer)) del_timer (&pACB->Waiting_Timer);
- return( 0 );
+ free_irq(scsi_host->irq, pACB);
+ release_region(scsi_host->io_port, scsi_host->n_io_port);
+
+ pci_disable_device(dev);
+ scsi_host_put(scsi_host);
+ pci_set_drvdata(dev, NULL);
}
-void dc390_freeDCBs (struct Scsi_Host *host)
+static struct pci_device_id tmscsim_pci_tbl[] = {
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD53C974,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(pci, tmscsim_pci_tbl);
+
+static struct pci_driver dc390_driver = {
+ .name = "tmscsim",
+ .id_table = tmscsim_pci_tbl,
+ .probe = dc390_probe_one,
+ .remove = __devexit_p(dc390_remove_one),
+};
+
+static int __init dc390_module_init(void)
{
- 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);
+ if (tmscsim[0] == -1 || tmscsim[0] > 15) {
+ tmscsim[0] = 7;
+ tmscsim[1] = 4;
+ tmscsim[2] = PARITY_CHK_ | TAG_QUEUEING_;
+ tmscsim[3] = MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION;
+ tmscsim[4] = 2;
+ tmscsim[5] = 10;
+ printk (KERN_INFO "DC390: Using safe settings.\n");
+ }
+ return pci_module_init(&dc390_driver);
}
-int DC390_release (struct Scsi_Host *host)
+static void __exit dc390_module_exit(void)
{
- DC390_AFLAGS DC390_IFLAGS;
- PACB pACB = (PACB)(host->hostdata);
+ pci_unregister_driver(&dc390_driver);
+}
+
+module_init(dc390_module_init);
+module_exit(dc390_module_exit);
+
+#ifndef MODULE
+static int __init dc390_setup (char *str)
+{
+ int ints[8],i, im;
- DC390_LOCK_IO(host);
- DC390_LOCK_ACB;
+ get_options(str, ARRAY_SIZE(ints), ints);
+ im = ints[0];
- /* TO DO: We should check for outstanding commands first. */
- dc390_shutdown (host);
+ if (im > 6) {
+ printk (KERN_NOTICE "DC390: ignore extra params!\n");
+ im = 6;
+ }
- if (host->irq != SCSI_IRQ_NONE)
- {
- DEBUG0(printk(KERN_INFO "DC390: Free IRQ %i\n",host->irq));
- free_irq (host->irq, pACB);
- }
+ for (i = 0; i < im; i++)
+ tmscsim[i] = ints[i+1];
+ /* dc390_checkparams (); */
+ return 1;
+}
- release_region(host->io_port,host->n_io_port);
- dc390_freeDCBs (host);
- DC390_UNLOCK_ACB;
- DC390_UNLOCK_IO(host);
- scsi_unregister(host);
- return( 1 );
-}
-
-static Scsi_Host_Template driver_template = {
- .proc_name = "tmscsim",
- .proc_info = DC390_proc_info,
- .name = DC390_BANNER " V" DC390_VERSION,
- .detect = DC390_detect,
- .release = DC390_release,
- .queuecommand = DC390_queue_command,
- .eh_abort_handler = DC390_abort,
- .eh_bus_reset_handler = DC390_reset,
- .bios_param = DC390_bios_param,
- .can_queue = 42,
- .this_id = 7,
- .sg_tablesize = SG_ALL,
- .cmd_per_lun = 16,
- .use_clustering = DISABLE_CLUSTERING,
-};
-#include "scsi_module.c"
+__setup("tmscsim=", dc390_setup);
+#endif
git://git.onelab.eu / linux-2.6.git / blobdiff