diff options
Diffstat (limited to 'drivers/scsi/u14-34f.c')
| -rw-r--r-- | drivers/scsi/u14-34f.c | 316 |
1 files changed, 227 insertions, 89 deletions
diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c index 32cd24ab2..7ce244ab1 100644 --- a/drivers/scsi/u14-34f.c +++ b/drivers/scsi/u14-34f.c @@ -1,5 +1,42 @@ /* - * u14-34f.c - Low-level SCSI driver for UltraStor 14F/34F + * u14-34f.c - Low-level driver for UltraStor 14F/34F SCSI host adapters. + * + * 11 Mar 1995 rev. 2.00 for linux 1.2.0 + * Fixed a bug which prevented media change detection for removable + * disk drives. + * + * 23 Feb 1995 rev. 1.18 for linux 1.1.94 + * Added a check for scsi_register returning NULL. + * + * 11 Feb 1995 rev. 1.17 for linux 1.1.91 + * U14F qualified to run with 32 sglists. + * Now DEBUG_RESET is disabled by default. + * + * 9 Feb 1995 rev. 1.16 for linux 1.1.90 + * Use host->wish_block instead of host->block. + * + * 8 Feb 1995 rev. 1.15 for linux 1.1.89 + * Cleared target_time_out counter while performing a reset. + * + * 28 Jan 1995 rev. 1.14 for linux 1.1.86 + * Added module support. + * Log and do a retry when a disk drive returns a target status + * different from zero on a recovered error. + * Auto detects if U14F boards have an old firmware revision. + * Max number of scatter/gather lists set to 16 for all boards + * (most installation run fine using 33 sglists, while other + * has problems when using more then 16). + * + * 16 Jan 1995 rev. 1.13 for linux 1.1.81 + * Display a message if check_region detects a port address + * already in use. + * + * 15 Dec 1994 rev. 1.12 for linux 1.1.74 + * The host->block flag is set for all the detected ISA boards. + * + * 30 Nov 1994 rev. 1.11 for linux 1.1.68 + * Redo i/o on target status CHECK_CONDITION for TYPE_DISK only. + * Added optional support for using a single board at a time. * * 14 Nov 1994 rev. 1.10 for linux 1.1.63 * @@ -14,14 +51,13 @@ * * Multiple U14F and/or U34F host adapters are supported. * - * Released by Dario Ballabio (Dario_Ballabio@milano.europe.dg.com) + * Copyright (C) 1994, 1995 Dario Ballabio (dario@milano.europe.dg.com) * - * WARNING: if your 14F board has old firmware revision (see below) - * keep the following statement, otherwise comment it. + * WARNING: if your 14F board has an old firmware revision (see below) + * you must change "#undef" into "#define" in the following + * statement. */ -#if 0 -#define HAVE_OLD_U14F_FIRMWARE -#endif +#undef HAVE_OLD_U14F_FIRMWARE /* * The UltraStor 14F, 24F, and 34F are a family of intelligent, high * performance SCSI-2 host adapters. @@ -29,7 +65,7 @@ * * 14F - ISA first-party DMA HA with floppy support and WD1003 emulation. * 24F - EISA Bus Master HA with floppy support and WD1003 emulation. - * 34F - VL-Bus Bus Master HA (no WD1003 emulation). + * 34F - VESA Local-Bus Bus Master HA (no WD1003 emulation). * * This code has been tested with up to two U14F boards, using both * firmware 28004-005/38004-004 (BIOS rev. 2.00) and the latest firmware @@ -44,13 +80,13 @@ * * Here a sample configuration using two U14F boards: * - U14F0: PORT 0x330, BIOS 0xc8000, IRQ 11, DMA 5, SG 33, Mbox 16, CmdLun 2, C1. - U14F1: PORT 0x340, BIOS 0x00000, IRQ 10, DMA 6, SG 33, Mbox 16, CmdLun 2, C1. + U14F0: PORT 0x330, BIOS 0xc8000, IRQ 11, DMA 5, SG 32, Mbox 16, CmdLun 2, C1. + U14F1: PORT 0x340, BIOS 0x00000, IRQ 10, DMA 6, SG 32, Mbox 16, CmdLun 2, C1. * * The boot controller must have its BIOS enabled, while other boards can * have their BIOS disabled, or enabled to an higher address. * Boards are named Ux4F0, Ux4F1..., according to the port address order in - * the isa_io_port[] array. + * the io_port[] array. * * The following facts are based on real testing results (not on * documentation) on the above U14F board. @@ -86,11 +122,17 @@ * when DISABLE_CLUSTERING is in effect, but unscattered requests could be * larger than 16Kbyte. * - * The new firmware has fixed all the above problems and has been tested - * with up to 33 scatter/gather lists. + * The new firmware has fixed all the above problems. * + * In order to support multiple ISA boards in a reliable way, + * the driver sets host->wish_block = TRUE for all ISA boards. */ +#if defined(MODULE) +#include <linux/module.h> +#include <linux/version.h> +#endif + #include <linux/string.h> #include <linux/sched.h> #include <linux/kernel.h> @@ -105,13 +147,13 @@ #include <asm/irq.h> #include "u14-34f.h" -/* Values for the PRODUCT_ID ports for the 14F */ -#define U14F_PRODUCT_ID1 0x56 -#define U14F_PRODUCT_ID2 0x40 /* NOTE: Only upper nibble is used */ +/* Values for the PRODUCT_ID ports for the 14/34F */ +#define PRODUCT_ID1 0x56 +#define PRODUCT_ID2 0x40 /* NOTE: Only upper nibble is used */ /* Subversion values */ -#define U14F 0 -#define U34F 1 +#define ISA 0 +#define ESA 1 #define OP_HOST_ADAPTER 0x1 #define OP_SCSI 0x2 @@ -125,27 +167,17 @@ #define HA_CMD_READ_BUFF 0x3 #define HA_CMD_WRITE_BUFF 0x4 -#if defined (HAVE_OLD_U14F_FIRMWARE) -#define U14F_MAX_SGLIST 16 -#define U14F_CLUSTERING DISABLE_CLUSTERING -#else -#define U14F_MAX_SGLIST 33 -#define U14F_CLUSTERING ENABLE_CLUSTERING -#endif - -#define U34F_MAX_SGLIST 33 -#define U34F_CLUSTERING ENABLE_CLUSTERING - -#define DO_BUS_RESET /* Reset SCSI bus on error */ -#define NO_DEBUG_DETECT -#define NO_DEBUG_INTERRUPT -#define NO_DEBUG_STATISTICS +#undef DEBUG_DETECT +#undef DEBUG_INTERRUPT +#undef DEBUG_STATISTICS +#undef DEBUG_RESET #define MAX_TARGET 8 #define MAX_IRQ 16 #define MAX_BOARDS 4 #define MAX_MAILBOXES 16 -#define MAX_SGLIST 33 +#define MAX_SGLIST 32 +#define MAX_SAFE_SGLIST 16 #define MAX_CMD_PER_LUN 2 #define FALSE 0 @@ -154,8 +186,10 @@ #define IN_USE 1 #define LOCKED 2 #define IN_RESET 3 +#define IGNORE 4 #define NO_IRQ 0xff -#define MAXLOOP 20000 +#define NO_DMA 0xff +#define MAXLOOP 200000 #define REG_LCL_MASK 0 #define REG_LCL_INTR 1 @@ -167,9 +201,9 @@ #define REG_CONFIG2 7 #define REG_OGM 8 #define REG_ICM 12 -#define REG_REGION 0x0c +#define REGION_SIZE 13 #define BSY_ASSERTED 0x01 -#define INTR_ASSERTED 0x01 +#define IRQ_ASSERTED 0x01 #define CMD_RESET 0xc0 #define CMD_OGM_INTR 0x01 #define CMD_CLR_INTR 0x01 @@ -219,13 +253,13 @@ struct hostdata { unsigned int multicount; /* Total ... in second ihdlr loop */ int board_number; /* Number of this board */ char board_name[16]; /* Name of this board */ + char board_id[256]; /* data from INQUIRY on this board */ int in_reset; /* True if board is doing a reset */ int target_time_out[MAX_TARGET]; /* N. of timeout errors on target */ int target_reset[MAX_TARGET]; /* If TRUE redo operation on target */ - unsigned char bios_drive_number: 1; + unsigned char subversion; /* Bus type, either ISA or ESA */ unsigned char heads; unsigned char sectors; - unsigned char subversion: 4; /* slot != 0 for the U24F, slot == 0 for both the U14F and U34F */ unsigned char slot; @@ -238,7 +272,7 @@ static unsigned int irqlist[MAX_IRQ], calls[MAX_IRQ]; #define HD(board) ((struct hostdata *) &sh[board]->hostdata) #define BN(board) (HD(board)->board_name) -static void u14_34f_interrupt_handler(int); +static void u14_34f_interrupt_handler(int, struct pt_regs *); static int do_trace = FALSE; static inline unchar wait_on_busy(ushort iobase) { @@ -250,9 +284,53 @@ static inline unchar wait_on_busy(ushort iobase) { return FALSE; } +static int board_inquiry(unsigned int j) { + struct mscp *cpp; + unsigned int time, limit = 0; + + cpp = &HD(j)->cp[0]; + memset(cpp, 0, sizeof(struct mscp)); + cpp->opcode = OP_HOST_ADAPTER; + cpp->xdir = DTD_IN; + cpp->data_address = (unsigned int) HD(j)->board_id; + cpp->data_len = sizeof(HD(j)->board_id); + cpp->scsi_cdbs_len = 6; + cpp->scsi_cdbs[0] = HA_CMD_INQUIRY; + + if (wait_on_busy(sh[j]->io_port)) { + printk("%s: board_inquiry, adapter busy.\n", BN(j)); + return TRUE; + } + + HD(j)->cp_stat[0] = IGNORE; + + /* Clear the interrupt indication */ + outb(CMD_CLR_INTR, sh[j]->io_port + REG_SYS_INTR); + + /* Store pointer in OGM address bytes */ + outl((unsigned int)cpp, sh[j]->io_port + REG_OGM); + + /* Issue OGM interrupt */ + outb(CMD_OGM_INTR, sh[j]->io_port + REG_LCL_INTR); + + sti(); + time = jiffies; + while (jiffies < (time + 100) && limit++ < 100000000); + cli(); + + if (cpp->adapter_status || HD(j)->cp_stat[0] != FREE) { + HD(j)->cp_stat[0] = FREE; + printk("%s: board_inquiry, err 0x%x.\n", BN(j), cpp->adapter_status); + return TRUE; + } + + return FALSE; +} + static inline int port_detect(ushort *port_base, unsigned int j, Scsi_Host_Template * tpnt) { - unsigned char irq, dma_channel, in_byte, subversion, sys_mask, lcl_mask; + unsigned char irq, dma_channel, subversion; + unsigned char in_byte; /* Allowed BIOS base addresses (NULL indicates reserved) */ void *bios_segment_table[8] = { @@ -262,10 +340,10 @@ static inline int port_detect(ushort *port_base, unsigned int j, }; /* Allowed IRQs */ - unsigned char interrupt_table_14f[4] = { 15, 14, 11, 10 }; + unsigned char interrupt_table[4] = { 15, 14, 11, 10 }; - /* Allowed DMA channels for 14f (0 indicates reserved) */ - unsigned char dma_channel_table_14f[4] = { 5, 6, 7, 0 }; + /* Allowed DMA channels for ISA (0 indicates reserved) */ + unsigned char dma_channel_table[4] = { 5, 6, 7, 0 }; /* Head/sector mappings */ struct { @@ -293,28 +371,33 @@ static inline int port_detect(ushort *port_base, unsigned int j, sprintf(name, "%s%d", driver_name, j); - if(check_region(*port_base, REG_REGION)) return FALSE; + if(check_region(*port_base, REGION_SIZE)) { + printk("%s: address 0x%03x in use, skipping probe.\n", + name, *port_base); + return FALSE; + } - if (inb(*port_base + REG_PRODUCT_ID1) != U14F_PRODUCT_ID1) return FALSE; + if (inb(*port_base + REG_PRODUCT_ID1) != PRODUCT_ID1) return FALSE; in_byte = inb(*port_base + REG_PRODUCT_ID2); - if ((in_byte & 0xf0) != U14F_PRODUCT_ID2) return FALSE; + if ((in_byte & 0xf0) != PRODUCT_ID2) return FALSE; *(char *)&config_1 = inb(*port_base + REG_CONFIG1); *(char *)&config_2 = inb(*port_base + REG_CONFIG2); - irq = interrupt_table_14f[config_1.interrupt]; - dma_channel = dma_channel_table_14f[config_1.dma_channel]; + irq = interrupt_table[config_1.interrupt]; + dma_channel = dma_channel_table[config_1.dma_channel]; subversion = (in_byte & 0x0f); + /* Board detected, allocate its IRQ if not already done */ if ((irq >= MAX_IRQ) || ((irqlist[irq] == NO_IRQ) && request_irq (irq, u14_34f_interrupt_handler, SA_INTERRUPT, driver_name))) { printk("%s: unable to allocate IRQ %u, detaching.\n", name, irq); return FALSE; } - if (subversion == U14F && request_dma(dma_channel, driver_name)) { + if (subversion == ISA && request_dma(dma_channel, driver_name)) { printk("%s: unable to allocate DMA channel %u, detaching.\n", name, dma_channel); free_irq(irq); @@ -322,54 +405,64 @@ static inline int port_detect(ushort *port_base, unsigned int j, } sh[j] = scsi_register(tpnt, sizeof(struct hostdata)); + + if (sh[j] == NULL) { + printk("%s: unable to register host, detaching.\n", name); + + if (irqlist[irq] == NO_IRQ) free_irq(irq); + + if (subversion == ISA) free_dma(dma_channel); + + return FALSE; + } + sh[j]->io_port = *port_base; + sh[j]->n_io_port = REGION_SIZE; sh[j]->base = bios_segment_table[config_1.bios_segment]; sh[j]->irq = irq; + sh[j]->sg_tablesize = MAX_SGLIST; sh[j]->this_id = config_2.ha_scsi_id; sh[j]->can_queue = MAX_MAILBOXES; - sh[j]->hostt->cmd_per_lun = MAX_CMD_PER_LUN; - sys_mask = inb(sh[j]->io_port + REG_SYS_MASK); - lcl_mask = inb(sh[j]->io_port + REG_LCL_MASK); + sh[j]->cmd_per_lun = MAX_CMD_PER_LUN; #if defined(DEBUG_DETECT) + { + unsigned char sys_mask, lcl_mask; + + sys_mask = inb(sh[j]->io_port + REG_SYS_MASK); + lcl_mask = inb(sh[j]->io_port + REG_LCL_MASK); printk("SYS_MASK 0x%x, LCL_MASK 0x%x.\n", sys_mask, lcl_mask); + } #endif /* If BIOS is disabled, force enable interrupts */ if (sh[j]->base == 0) outb(CMD_ENA_INTR, sh[j]->io_port + REG_SYS_MASK); -#if defined (DO_BUS_RESET) - lcl_mask = 0xc2; -#else - lcl_mask = 0x82; -#endif - - outb(lcl_mask, sh[j]->io_port + REG_LCL_MASK); - /* Register the I/O space that we use */ - snarf_region(sh[j]->io_port, REG_REGION); + request_region(sh[j]->io_port, REGION_SIZE, driver_name); memset(HD(j), 0, sizeof(struct hostdata)); HD(j)->heads = mapping_table[config_2.mapping_mode].heads; HD(j)->sectors = mapping_table[config_2.mapping_mode].sectors; - HD(j)->bios_drive_number = config_2.bios_drive_number; HD(j)->subversion = subversion; HD(j)->board_number = j; irqlist[irq] = j; - if (HD(j)->subversion == U34F) { - sh[j]->dma_channel = 0; + if (HD(j)->subversion == ESA) { + sh[j]->dma_channel = NO_DMA; sh[j]->unchecked_isa_dma = FALSE; - sh[j]->sg_tablesize = U34F_MAX_SGLIST; - sh[j]->hostt->use_clustering = U34F_CLUSTERING; sprintf(BN(j), "U34F%d", j); } else { + sh[j]->wish_block = TRUE; + +#if defined (HAVE_OLD_U14F_FIRMWARE) + sh[j]->hostt->use_clustering = DISABLE_CLUSTERING; + sh[j]->sg_tablesize = MAX_SAFE_SGLIST; +#endif + sh[j]->dma_channel = dma_channel; sh[j]->unchecked_isa_dma = TRUE; - sh[j]->sg_tablesize = U14F_MAX_SGLIST; - /*if (j > 0) sh[j]->sg_tablesize = 0;*/ - sh[j]->hostt->use_clustering = U14F_CLUSTERING; sprintf(BN(j), "U14F%d", j); disable_dma(dma_channel); clear_dma_ff(dma_channel); @@ -377,11 +470,23 @@ static inline int port_detect(ushort *port_base, unsigned int j, enable_dma(dma_channel); } + if (HD(j)->subversion == ISA && !board_inquiry(j)) { + HD(j)->board_id[40] = 0; + + if (strcmp(&HD(j)->board_id[32], "06000600")) { + printk("%s: %s.\n", BN(j), &HD(j)->board_id[8]); + printk("%s: firmware %s is outdated, BIOS rev. should be 2.01.\n", + BN(j), &HD(j)->board_id[32]); + sh[j]->hostt->use_clustering = DISABLE_CLUSTERING; + sh[j]->sg_tablesize = MAX_SAFE_SGLIST; + } + } + printk("%s: PORT 0x%03x, BIOS 0x%05x, IRQ %u, DMA %u, SG %d, "\ "Mbox %d, CmdLun %d, C%d.\n", BN(j), sh[j]->io_port, (int)sh[j]->base, sh[j]->irq, sh[j]->dma_channel, sh[j]->sg_tablesize, - sh[j]->can_queue, sh[j]->hostt->cmd_per_lun, + sh[j]->can_queue, sh[j]->cmd_per_lun, sh[j]->hostt->use_clustering); return TRUE; } @@ -389,11 +494,11 @@ static inline int port_detect(ushort *port_base, unsigned int j, int u14_34f_detect (Scsi_Host_Template * tpnt) { unsigned int j = 0, k, flags; - ushort isa_io_port[] = { + ushort io_port[] = { 0x330, 0x340, 0x230, 0x240, 0x210, 0x130, 0x140, 0x0 }; - ushort *port_base = isa_io_port; + ushort *port_base = io_port; save_flags(flags); cli(); @@ -407,11 +512,14 @@ int u14_34f_detect (Scsi_Host_Template * tpnt) { while (*port_base) { - if(j < MAX_BOARDS && port_detect(port_base, j, tpnt)) j++; + if (j < MAX_BOARDS && port_detect(port_base, j, tpnt)) j++; port_base++; } + if (j > 0) + printk("UltraStor 14F/34F: Copyright (C) 1994, 1995 Dario Ballabio.\n"); + restore_flags(flags); return j; } @@ -422,7 +530,7 @@ static inline void build_sg_list(struct mscp *cpp, Scsi_Cmnd *SCpnt) { sgpnt = (struct scatterlist *) SCpnt->request_buffer; - for(k = 0; k < SCpnt->use_sg; k++) { + for (k = 0; k < SCpnt->use_sg; k++) { cpp->sglist[k].address = (unsigned int) sgpnt[k].address; cpp->sglist[k].num_bytes = sgpnt[k].length; data_len += sgpnt[k].length; @@ -448,7 +556,7 @@ int u14_34f_queuecommand(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *)) { starting from last_cp_used */ i = HD(j)->last_cp_used + 1; - for(k = 0; k < sh[j]->can_queue; k++, i++) { + for (k = 0; k < sh[j]->can_queue; k++, i++) { if (i >= sh[j]->can_queue) i = 0; @@ -612,6 +720,8 @@ int u14_34f_reset(Scsi_Cmnd * SCarg) { for (k = 0; k < MAX_TARGET; k++) HD(j)->target_reset[k] = TRUE; + for (k = 0; k < MAX_TARGET; k++) HD(j)->target_time_out[k] = 0; + for (i = 0; i < sh[j]->can_queue; i++) { if (HD(j)->cp_stat[i] == FREE) continue; @@ -650,11 +760,15 @@ int u14_34f_reset(Scsi_Cmnd * SCarg) { outb(CMD_RESET, sh[j]->io_port + REG_LCL_INTR); printk("%s: reset, board reset done, enabling interrupts.\n", BN(j)); + +#if defined (DEBUG_RESET) do_trace = TRUE; +#endif + HD(j)->in_reset = TRUE; sti(); time = jiffies; - while (jiffies < (time + 200) && limit++ < 100000000) sti(); + while (jiffies < (time + 100) && limit++ < 100000000); cli(); printk("%s: reset, interrupts disabled, loops %d.\n", BN(j), limit); @@ -701,9 +815,9 @@ int u14_34f_biosparam(Disk * disk, int dev, int * dkinfo) { return 0; } -static void u14_34f_interrupt_handler(int irq) { +static void u14_34f_interrupt_handler(int irq, struct pt_regs * regs) { Scsi_Cmnd *SCpnt; - unsigned int i, j, k, flags, status, loops, total_loops = 0; + unsigned int i, j, k, flags, status, tstatus, loops, total_loops = 0; struct mscp *spp; save_flags(flags); @@ -726,7 +840,7 @@ static void u14_34f_interrupt_handler(int irq) { loops = 0; /* Loop until all interrupts for a board are serviced */ - while (inb(sh[j]->io_port + REG_SYS_INTR) & INTR_ASSERTED) { + while (inb(sh[j]->io_port + REG_SYS_INTR) & IRQ_ASSERTED) { total_loops++; loops++; @@ -743,7 +857,11 @@ static void u14_34f_interrupt_handler(int irq) { if (i >= sh[j]->can_queue) panic("%s: ihdlr, invalid mscp address.\n", BN(j)); - if (HD(j)->cp_stat[i] == LOCKED) { + if (HD(j)->cp_stat[i] == IGNORE) { + HD(j)->cp_stat[i] = FREE; + continue; + } + else if (HD(j)->cp_stat[i] == LOCKED) { HD(j)->cp_stat[i] = FREE; printk("%s: ihdlr, mbox %d unlocked, count %d.\n", BN(j), i, HD(j)->iocount); @@ -774,29 +892,43 @@ static void u14_34f_interrupt_handler(int irq) { " irq %d.\n", BN(j), i, SCpnt->pid, *(unsigned int *)SCpnt->host_scribble, irq); + tstatus = status_byte(spp->target_status); + switch (spp->adapter_status) { case ASOK: /* status OK */ - /* Fix a "READ CAPACITY failed" error on some disk drives */ - if (spp->target_status == INTERMEDIATE_GOOD - && SCpnt->device->type != TYPE_TAPE) + /* Forces a reset if a disk drive keeps returning BUSY */ + if (tstatus == BUSY && SCpnt->device->type != TYPE_TAPE) status = DID_ERROR << 16; /* If there was a bus reset, redo operation on each target */ - else if (spp->target_status == CONDITION_GOOD - && SCpnt->device->type != TYPE_TAPE - && HD(j)->target_reset[SCpnt->target]) + else if (tstatus != GOOD + && SCpnt->device->type == TYPE_DISK + && HD(j)->target_reset[SCpnt->target]) + status = DID_BUS_BUSY << 16; + + /* Works around a flaw in scsi.c */ + else if (tstatus == CHECK_CONDITION + && SCpnt->device->type == TYPE_DISK + && (SCpnt->sense_buffer[2] & 0xf) == RECOVERED_ERROR) status = DID_BUS_BUSY << 16; + else status = DID_OK << 16; - if (spp->target_status == 0) + if (tstatus == GOOD) HD(j)->target_reset[SCpnt->target] = FALSE; + if (spp->target_status && SCpnt->device->type == TYPE_DISK) + printk("%s: ihdlr, target %d:%d, pid %ld, target_status "\ + "0x%x, sense key 0x%x.\n", BN(j), + SCpnt->target, SCpnt->lun, SCpnt->pid, + spp->target_status, SCpnt->sense_buffer[2]); + HD(j)->target_time_out[SCpnt->target] = 0; break; - case ASST: /* SCSI bus selection time out */ + case ASST: /* Selection Time Out */ if (HD(j)->target_time_out[SCpnt->target] > 1) status = DID_ERROR << 16; @@ -881,3 +1013,9 @@ static void u14_34f_interrupt_handler(int irq) { restore_flags(flags); return; } + +#if defined(MODULE) +Scsi_Host_Template driver_template = ULTRASTOR_14_34F; + +#include "scsi_module.c" +#endif |