diff options
Diffstat (limited to 'drivers')
39 files changed, 896 insertions, 1602 deletions
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index 570f3b70dce..5fdfa7c888c 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -712,19 +712,17 @@ static void do_pd_request(struct request_queue * q) static int pd_special_command(struct pd_unit *disk, enum action (*func)(struct pd_unit *disk)) { - DECLARE_COMPLETION_ONSTACK(wait); - struct request rq; + struct request *rq; int err = 0; - blk_rq_init(NULL, &rq); - rq.rq_disk = disk->gd; - rq.end_io_data = &wait; - rq.end_io = blk_end_sync_rq; - blk_insert_request(disk->gd->queue, &rq, 0, func); - wait_for_completion(&wait); - if (rq.errors) - err = -EIO; - blk_put_request(&rq); + rq = blk_get_request(disk->gd->queue, READ, __GFP_WAIT); + + rq->cmd_type = REQ_TYPE_SPECIAL; + rq->special = func; + + err = blk_execute_rq(disk->gd->queue, disk->gd, rq, 0); + + blk_put_request(rq); return err; } diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index 1607536ff5f..cf707c8f08d 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -98,6 +98,9 @@ if BLK_DEV_IDE comment "Please see Documentation/ide/ide.txt for help/info on IDE drives" +config IDE_ATAPI + bool + config BLK_DEV_IDE_SATA bool "Support for SATA (deprecated; conflicts with libata SATA driver)" default n @@ -201,6 +204,7 @@ config BLK_DEV_IDECD_VERBOSE_ERRORS config BLK_DEV_IDETAPE tristate "Include IDE/ATAPI TAPE support" + select IDE_ATAPI help If you have an IDE tape drive using the ATAPI protocol, say Y. ATAPI is a newer protocol used by IDE tape and CD-ROM drives, @@ -223,6 +227,7 @@ config BLK_DEV_IDETAPE config BLK_DEV_IDEFLOPPY tristate "Include IDE/ATAPI FLOPPY support" + select IDE_ATAPI ---help--- If you have an IDE floppy drive which uses the ATAPI protocol, answer Y. ATAPI is a newer protocol used by IDE CD-ROM/tape/floppy @@ -246,6 +251,7 @@ config BLK_DEV_IDEFLOPPY config BLK_DEV_IDESCSI tristate "SCSI emulation support" depends on SCSI + select IDE_ATAPI ---help--- WARNING: ide-scsi is no longer needed for cd writing applications! The 2.6 kernel supports direct writing to ide-cd, which eliminates diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile index f94b679b611..a2b3f84d710 100644 --- a/drivers/ide/Makefile +++ b/drivers/ide/Makefile @@ -14,6 +14,7 @@ EXTRA_CFLAGS += -Idrivers/ide ide-core-y += ide.o ide-io.o ide-iops.o ide-lib.o ide-probe.o ide-taskfile.o # core IDE code +ide-core-$(CONFIG_IDE_ATAPI) += ide-atapi.o ide-core-$(CONFIG_BLK_DEV_IDEPCI) += setup-pci.o ide-core-$(CONFIG_BLK_DEV_IDEDMA) += ide-dma.o ide-core-$(CONFIG_IDE_PROC_FS) += ide-proc.o diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c index 2f2b4f4cf22..3839f572298 100644 --- a/drivers/ide/arm/palm_bk3710.c +++ b/drivers/ide/arm/palm_bk3710.c @@ -83,7 +83,7 @@ static const struct palm_bk3710_udmatiming palm_bk3710_udmatimings[6] = { {125, 160}, /* UDMA Mode 1 */ {100, 120}, /* UDMA Mode 2 */ {100, 90}, /* UDMA Mode 3 */ - {85, 60}, /* UDMA Mode 4 */ + {100, 60}, /* UDMA Mode 4 */ }; static void palm_bk3710_setudmamode(void __iomem *base, unsigned int dev, @@ -405,7 +405,6 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) ide_init_port_data(hwif, i); ide_init_port_hw(hwif, &hw); - hwif->mmio = 1; default_hwif_mmiops(hwif); idx[0] = i; diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c index ecf53bb0d2a..ae37ee58bae 100644 --- a/drivers/ide/h8300/ide-h8300.c +++ b/drivers/ide/h8300/ide-h8300.c @@ -52,8 +52,6 @@ static void h8300_tf_load(ide_drive_t *drive, ide_task_t *task) if (task->tf_flags & IDE_TFLAG_FLAGGED) HIHI = 0xFF; - ide_set_irq(drive, 1); - if (task->tf_flags & IDE_TFLAG_OUT_DATA) mm_outw((tf->hob_data << 8) | tf->data, io_ports->data_addr); @@ -98,7 +96,7 @@ static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task) } /* be sure we're looking at the low order bits */ - outb(drive->ctl & ~0x80, io_ports->ctl_addr); + outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = inb(io_ports->nsect_addr); @@ -112,7 +110,7 @@ static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task) tf->device = inb(io_ports->device_addr); if (task->tf_flags & IDE_TFLAG_LBA48) { - outb(drive->ctl | 0x80, io_ports->ctl_addr); + outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) tf->hob_feature = inb(io_ports->feature_addr); diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c index 9d3601fa568..6f704628c27 100644 --- a/drivers/ide/ide-acpi.c +++ b/drivers/ide/ide-acpi.c @@ -60,15 +60,15 @@ struct ide_acpi_hwif_link { #define DEBPRINT(fmt, args...) do {} while (0) #endif /* DEBUGGING */ -int ide_noacpi; +static int ide_noacpi; module_param_named(noacpi, ide_noacpi, bool, 0); MODULE_PARM_DESC(noacpi, "disable IDE ACPI support"); -int ide_acpigtf; +static int ide_acpigtf; module_param_named(acpigtf, ide_acpigtf, bool, 0); MODULE_PARM_DESC(acpigtf, "enable IDE ACPI _GTF support"); -int ide_acpionboot; +static int ide_acpionboot; module_param_named(acpionboot, ide_acpionboot, bool, 0); MODULE_PARM_DESC(acpionboot, "call IDE ACPI methods on boot"); diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c new file mode 100644 index 00000000000..2802031de67 --- /dev/null +++ b/drivers/ide/ide-atapi.c @@ -0,0 +1,296 @@ +/* + * ATAPI support. + */ + +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/ide.h> +#include <scsi/scsi.h> + +#ifdef DEBUG +#define debug_log(fmt, args...) \ + printk(KERN_INFO "ide: " fmt, ## args) +#else +#define debug_log(fmt, args...) do {} while (0) +#endif + +/* TODO: unify the code thus making some arguments go away */ +ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, + ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, + void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *), + void (*retry_pc)(ide_drive_t *), void (*dsc_handle)(ide_drive_t *), + void (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int)) +{ + ide_hwif_t *hwif = drive->hwif; + xfer_func_t *xferfunc; + unsigned int temp; + u16 bcount; + u8 stat, ireason, scsi = drive->scsi; + + debug_log("Enter %s - interrupt handler\n", __func__); + + if (pc->flags & PC_FLAG_TIMEDOUT) { + pc->callback(drive); + return ide_stopped; + } + + /* Clear the interrupt */ + stat = ide_read_status(drive); + + if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { + if (hwif->dma_ops->dma_end(drive) || + (drive->media == ide_tape && !scsi && (stat & ERR_STAT))) { + if (drive->media == ide_floppy && !scsi) + printk(KERN_ERR "%s: DMA %s error\n", + drive->name, rq_data_dir(pc->rq) + ? "write" : "read"); + pc->flags |= PC_FLAG_DMA_ERROR; + } else { + pc->xferred = pc->req_xfer; + if (update_buffers) + update_buffers(drive, pc); + } + debug_log("%s: DMA finished\n", drive->name); + } + + /* No more interrupts */ + if ((stat & DRQ_STAT) == 0) { + debug_log("Packet command completed, %d bytes transferred\n", + pc->xferred); + + pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; + + local_irq_enable_in_hardirq(); + + if (drive->media == ide_tape && !scsi && + (stat & ERR_STAT) && pc->c[0] == REQUEST_SENSE) + stat &= ~ERR_STAT; + if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) { + /* Error detected */ + debug_log("%s: I/O error\n", drive->name); + + if (drive->media != ide_tape || scsi) { + pc->rq->errors++; + if (scsi) + goto cmd_finished; + } + + if (pc->c[0] == REQUEST_SENSE) { + printk(KERN_ERR "%s: I/O error in request sense" + " command\n", drive->name); + return ide_do_reset(drive); + } + + debug_log("[cmd %x]: check condition\n", pc->c[0]); + + /* Retry operation */ + retry_pc(drive); + /* queued, but not started */ + return ide_stopped; + } +cmd_finished: + pc->error = 0; + if ((pc->flags & PC_FLAG_WAIT_FOR_DSC) && + (stat & SEEK_STAT) == 0) { + dsc_handle(drive); + return ide_stopped; + } + /* Command finished - Call the callback function */ + pc->callback(drive); + return ide_stopped; + } + + if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { + pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; + printk(KERN_ERR "%s: The device wants to issue more interrupts " + "in DMA mode\n", drive->name); + ide_dma_off(drive); + return ide_do_reset(drive); + } + /* Get the number of bytes to transfer on this interrupt. */ + bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) | + hwif->INB(hwif->io_ports.lbam_addr); + + ireason = hwif->INB(hwif->io_ports.nsect_addr); + + if (ireason & CD) { + printk(KERN_ERR "%s: CoD != 0 in %s\n", drive->name, __func__); + return ide_do_reset(drive); + } + if (((ireason & IO) == IO) == !!(pc->flags & PC_FLAG_WRITING)) { + /* Hopefully, we will never get here */ + printk(KERN_ERR "%s: We wanted to %s, but the device wants us " + "to %s!\n", drive->name, + (ireason & IO) ? "Write" : "Read", + (ireason & IO) ? "Read" : "Write"); + return ide_do_reset(drive); + } + if (!(pc->flags & PC_FLAG_WRITING)) { + /* Reading - Check that we have enough space */ + temp = pc->xferred + bcount; + if (temp > pc->req_xfer) { + if (temp > pc->buf_size) { + printk(KERN_ERR "%s: The device wants to send " + "us more data than expected - " + "discarding data\n", + drive->name); + if (scsi) + temp = pc->buf_size - pc->xferred; + else + temp = 0; + if (temp) { + if (pc->sg) + io_buffers(drive, pc, temp, 0); + else + hwif->input_data(drive, NULL, + pc->cur_pos, temp); + printk(KERN_ERR "%s: transferred %d of " + "%d bytes\n", + drive->name, + temp, bcount); + } + pc->xferred += temp; + pc->cur_pos += temp; + ide_pad_transfer(drive, 0, bcount - temp); + ide_set_handler(drive, handler, timeout, + expiry); + return ide_started; + } + debug_log("The device wants to send us more data than " + "expected - allowing transfer\n"); + } + xferfunc = hwif->input_data; + } else + xferfunc = hwif->output_data; + + if ((drive->media == ide_floppy && !scsi && !pc->buf) || + (drive->media == ide_tape && !scsi && pc->bh) || + (scsi && pc->sg)) + io_buffers(drive, pc, bcount, !!(pc->flags & PC_FLAG_WRITING)); + else + xferfunc(drive, NULL, pc->cur_pos, bcount); + + /* Update the current position */ + pc->xferred += bcount; + pc->cur_pos += bcount; + + debug_log("[cmd %x] transferred %d bytes on that intr.\n", + pc->c[0], bcount); + + /* And set the interrupt handler again */ + ide_set_handler(drive, handler, timeout, expiry); + return ide_started; +} +EXPORT_SYMBOL_GPL(ide_pc_intr); + +static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason) +{ + ide_hwif_t *hwif = drive->hwif; + int retries = 100; + + while (retries-- && ((ireason & CD) == 0 || (ireason & IO))) { + printk(KERN_ERR "%s: (IO,CoD != (0,1) while issuing " + "a packet command, retrying\n", drive->name); + udelay(100); + ireason = hwif->INB(hwif->io_ports.nsect_addr); + if (retries == 0) { + printk(KERN_ERR "%s: (IO,CoD != (0,1) while issuing " + "a packet command, ignoring\n", + drive->name); + ireason |= CD; + ireason &= ~IO; + } + } + + return ireason; +} + +ide_startstop_t ide_transfer_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, + ide_handler_t *handler, unsigned int timeout, + ide_expiry_t *expiry) +{ + ide_hwif_t *hwif = drive->hwif; + ide_startstop_t startstop; + u8 ireason; + + if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) { + printk(KERN_ERR "%s: Strange, packet command initiated yet " + "DRQ isn't asserted\n", drive->name); + return startstop; + } + + ireason = hwif->INB(hwif->io_ports.nsect_addr); + if (drive->media == ide_tape && !drive->scsi) + ireason = ide_wait_ireason(drive, ireason); + + if ((ireason & CD) == 0 || (ireason & IO)) { + printk(KERN_ERR "%s: (IO,CoD) != (0,1) while issuing " + "a packet command\n", drive->name); + return ide_do_reset(drive); + } + + /* Set the interrupt routine */ + ide_set_handler(drive, handler, timeout, expiry); + + /* Begin DMA, if necessary */ + if (pc->flags & PC_FLAG_DMA_OK) { + pc->flags |= PC_FLAG_DMA_IN_PROGRESS; + hwif->dma_ops->dma_start(drive); + } + + /* Send the actual packet */ + if ((pc->flags & PC_FLAG_ZIP_DRIVE) == 0) + hwif->output_data(drive, NULL, pc->c, 12); + + return ide_started; +} +EXPORT_SYMBOL_GPL(ide_transfer_pc); + +ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, + ide_handler_t *handler, unsigned int timeout, + ide_expiry_t *expiry) +{ + ide_hwif_t *hwif = drive->hwif; + u16 bcount; + u8 dma = 0; + + /* We haven't transferred any data yet */ + pc->xferred = 0; + pc->cur_pos = pc->buf; + + /* Request to transfer the entire buffer at once */ + if (drive->media == ide_tape && !drive->scsi) + bcount = pc->req_xfer; + else + bcount = min(pc->req_xfer, 63 * 1024); + + if (pc->flags & PC_FLAG_DMA_ERROR) { + pc->flags &= ~PC_FLAG_DMA_ERROR; + ide_dma_off(drive); + } + + if ((pc->flags & PC_FLAG_DMA_OK) && drive->using_dma) { + if (drive->scsi) + hwif->sg_mapped = 1; + dma = !hwif->dma_ops->dma_setup(drive); + if (drive->scsi) + hwif->sg_mapped = 0; + } + + if (!dma) + pc->flags &= ~PC_FLAG_DMA_OK; + + ide_pktcmd_tf_load(drive, drive->scsi ? 0 : IDE_TFLAG_OUT_DEVICE, + bcount, dma); + + /* Issue the packet command */ + if (pc->flags & PC_FLAG_DRQ_INTERRUPT) { + ide_execute_command(drive, WIN_PACKETCMD, handler, + timeout, NULL); + return ide_started; + } else { + ide_execute_pkt_cmd(drive); + return (*handler)(drive); + } +} +EXPORT_SYMBOL_GPL(ide_issue_pc); diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 68e7f19dc03..d9984715718 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -188,16 +188,6 @@ static void cdrom_analyze_sense_data(ide_drive_t *drive, ide_cd_log_error(drive->name, failed_command, sense); } -/* Initialize a ide-cd packet command request */ -void ide_cd_init_rq(ide_drive_t *drive, struct request *rq) -{ - struct cdrom_info *cd = drive->driver_data; - - ide_init_drive_cmd(rq); - rq->cmd_type = REQ_TYPE_ATA_PC; - rq->rq_disk = cd->disk; -} - static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, struct request *failed_command) { @@ -208,7 +198,9 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, sense = &info->sense_data; /* stuff the sense request in front of our current request */ - ide_cd_init_rq(drive, rq); + blk_rq_init(NULL, rq); + rq->cmd_type = REQ_TYPE_ATA_PC; + rq->rq_disk = info->disk; rq->data = sense; rq->cmd[0] = GPCMD_REQUEST_SENSE; @@ -216,11 +208,12 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, rq->data_len = 18; rq->cmd_type = REQ_TYPE_SENSE; + rq->cmd_flags |= REQ_PREEMPT; /* NOTE! Save the failed command in "rq->buffer" */ rq->buffer = (void *) failed_command; - (void) ide_do_drive_cmd(drive, rq, ide_preempt); + ide_do_drive_cmd(drive, rq); } static void cdrom_end_request(ide_drive_t *drive, int uptodate) @@ -537,8 +530,8 @@ static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive, info->dma = !hwif->dma_ops->dma_setup(drive); /* set up the controller registers */ - ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL | - IDE_TFLAG_NO_SELECT_MASK, xferlen, info->dma); + ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL, + xferlen, info->dma); if (info->cd_flags & IDE_CD_FLAG_DRQ_INTERRUPT) { /* waiting for CDB interrupt, not DMA yet. */ @@ -838,34 +831,54 @@ static void ide_cd_request_sense_fixup(struct request *rq) } } -int ide_cd_queue_pc(ide_drive_t *drive, struct request *rq) +int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, + int write, void *buffer, unsigned *bufflen, + struct request_sense *sense, int timeout, + unsigned int cmd_flags) { - struct request_sense sense; + struct cdrom_info *info = drive->driver_data; + struct request_sense local_sense; int retries = 10; - unsigned int flags = rq->cmd_flags; + unsigned int flags = 0; - if (rq->sense == NULL) - rq->sense = &sense; + if (!sense) + sense = &local_sense; /* start of retry loop */ do { + struct request *rq; int error; - unsigned long time = jiffies; - rq->cmd_flags = flags; - error = ide_do_drive_cmd(drive, rq, ide_wait); - time = jiffies - time; + rq = blk_get_request(drive->queue, write, __GFP_WAIT); + + memcpy(rq->cmd, cmd, BLK_MAX_CDB); + rq->cmd_type = REQ_TYPE_ATA_PC; + rq->sense = sense; + rq->cmd_flags |= cmd_flags; + rq->timeout = timeout; + if (buffer) { + rq->data = buffer; + rq->data_len = *bufflen; + } + + error = blk_execute_rq(drive->queue, info->disk, rq, 0); + + if (buffer) + *bufflen = rq->data_len; + + flags = rq->cmd_flags; + blk_put_request(rq); /* * FIXME: we should probably abort/retry or something in case of * failure. */ - if (rq->cmd_flags & REQ_FAILED) { + if (flags & REQ_FAILED) { /* * The request failed. Retry if it was due to a unit * attention status (usually means media was changed). */ - struct request_sense *reqbuf = rq->sense; + struct request_sense *reqbuf = sense; if (reqbuf->sense_key == UNIT_ATTENTION) cdrom_saw_media_change(drive); @@ -885,10 +898,10 @@ int ide_cd_queue_pc(ide_drive_t *drive, struct request *rq) } /* end of retry loop */ - } while ((rq->cmd_flags & REQ_FAILED) && retries >= 0); + } while ((flags & REQ_FAILED) && retries >= 0); /* return an error if the command failed */ - return (rq->cmd_flags & REQ_FAILED) ? -EIO : 0; + return (flags & REQ_FAILED) ? -EIO : 0; } /* @@ -1268,23 +1281,20 @@ static void msf_from_bcd(struct atapi_msf *msf) int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) { - struct request req; struct cdrom_info *info = drive->driver_data; struct cdrom_device_info *cdi = &info->devinfo; + unsigned char cmd[BLK_MAX_CDB]; - ide_cd_init_rq(drive, &req); - - req.sense = sense; - req.cmd[0] = GPCMD_TEST_UNIT_READY; - req.cmd_flags |= REQ_QUIET; + memset(cmd, 0, BLK_MAX_CDB); + cmd[0] = GPCMD_TEST_UNIT_READY; /* * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs * instead of supporting the LOAD_UNLOAD opcode. */ - req.cmd[7] = cdi->sanyo_slot % 3; + cmd[7] = cdi->sanyo_slot % 3; - return ide_cd_queue_pc(drive, &req); + return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, sense, 0, REQ_QUIET); } static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, @@ -1297,17 +1307,14 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, } capbuf; int stat; - struct request req; - - ide_cd_init_rq(drive, &req); + unsigned char cmd[BLK_MAX_CDB]; + unsigned len = sizeof(capbuf); - req.sense = sense; - req.cmd[0] = GPCMD_READ_CDVD_CAPACITY; - req.data = (char *)&capbuf; - req.data_len = sizeof(capbuf); - req.cmd_flags |= REQ_QUIET; + memset(cmd, 0, BLK_MAX_CDB); + cmd[0] = GPCMD_READ_CDVD_CAPACITY; - stat = ide_cd_queue_pc(drive, &req); + stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, + REQ_QUIET); if (stat == 0) { *capacity = 1 + be32_to_cpu(capbuf.lba); *sectors_per_frame = @@ -1321,24 +1328,20 @@ static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, int format, char *buf, int buflen, struct request_sense *sense) { - struct request req; + unsigned char cmd[BLK_MAX_CDB]; - ide_cd_init_rq(drive, &req); + memset(cmd, 0, BLK_MAX_CDB); - req.sense = sense; - req.data = buf; - req.data_len = buflen; - req.cmd_flags |= REQ_QUIET; - req.cmd[0] = GPCMD_READ_TOC_PMA_ATIP; - req.cmd[6] = trackno; - req.cmd[7] = (buflen >> 8); - req.cmd[8] = (buflen & 0xff); - req.cmd[9] = (format << 6); + cmd[0] = GPCMD_READ_TOC_PMA_ATIP; + cmd[6] = trackno; + cmd[7] = (buflen >> 8); + cmd[8] = (buflen & 0xff); + cmd[9] = (format << 6); if (msf_flag) - req.cmd[1] = 2; + cmd[1] = 2; - return ide_cd_queue_pc(drive, &req); + return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); } /* Try to read the entire TOC for the disk into our internal buffer. */ @@ -2103,11 +2106,6 @@ static int ide_cd_probe(ide_drive_t *drive) goto failed; } } - if (drive->scsi) { - printk(KERN_INFO "ide-cd: passing drive %s to ide-scsi " - "emulation.\n", drive->name); - goto failed; - } info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); if (info == NULL) { printk(KERN_ERR "%s: Can't allocate a cdrom structure\n", diff --git a/drivers/ide/ide-cd.h b/drivers/ide/ide-cd.h index a58801c4484..fe0ea36e412 100644 --- a/drivers/ide/ide-cd.h +++ b/drivers/ide/ide-cd.h @@ -143,8 +143,8 @@ struct cdrom_info { void ide_cd_log_error(const char *, struct request *, struct request_sense *); /* ide-cd.c functions used by ide-cd_ioctl.c */ -void ide_cd_init_rq(ide_drive_t *, struct request *); -int ide_cd_queue_pc(ide_drive_t *, struct request *); +int ide_cd_queue_pc(ide_drive_t *, const unsigned char *, int, void *, + unsigned *, struct request_sense *, int, unsigned int); int ide_cd_read_toc(ide_drive_t *, struct request_sense *); int ide_cdrom_get_capabilities(ide_drive_t *, u8 *); void ide_cdrom_update_speed(ide_drive_t *, u8 *); diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c index 6d147ce6782..24d002addf7 100644 --- a/drivers/ide/ide-cd_ioctl.c +++ b/drivers/ide/ide-cd_ioctl.c @@ -104,8 +104,8 @@ int cdrom_eject(ide_drive_t *drive, int ejectflag, { struct cdrom_info *cd = drive->driver_data; struct cdrom_device_info *cdi = &cd->devinfo; - struct request req; char loej = 0x02; + unsigned char cmd[BLK_MAX_CDB]; if ((cd->cd_flags & IDE_CD_FLAG_NO_EJECT) && !ejectflag) return -EDRIVE_CANT_DO_THIS; @@ -114,17 +114,16 @@ int cdrom_eject(ide_drive_t *drive, int ejectflag, if ((cd->cd_flags & IDE_CD_FLAG_DOOR_LOCKED) && ejectflag) return 0; - ide_cd_init_rq(drive, &req); - /* only tell drive to close tray if open, if it can do that */ if (ejectflag && (cdi->mask & CDC_CLOSE_TRAY)) loej = 0; - req.sense = sense; - req.cmd[0] = GPCMD_START_STOP_UNIT; - req.cmd[4] = loej | (ejectflag != 0); + memset(cmd, 0, BLK_MAX_CDB); + + cmd[0] = GPCMD_START_STOP_UNIT; + cmd[4] = loej | (ejectflag != 0); - return ide_cd_queue_pc(drive, &req); + return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, sense, 0, 0); } /* Lock the door if LOCKFLAG is nonzero; unlock it otherwise. */ @@ -134,7 +133,6 @@ int ide_cd_lockdoor(ide_drive_t *drive, int lockflag, { struct cdrom_info *cd = drive->driver_data; struct request_sense my_sense; - struct request req; int stat; if (sense == NULL) @@ -144,11 +142,15 @@ int ide_cd_lockdoor(ide_drive_t *drive, int lockflag, if (cd->cd_flags & IDE_CD_FLAG_NO_DOORLOCK) { stat = 0; } else { - ide_cd_init_rq(drive, &req); - req.sense = sense; - req.cmd[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL; - req.cmd[4] = lockflag ? 1 : 0; - stat = ide_cd_queue_pc(drive, &req); + unsigned char cmd[BLK_MAX_CDB]; + + memset(cmd, 0, BLK_MAX_CDB); + + cmd[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL; + cmd[4] = lockflag ? 1 : 0; + + stat = ide_cd_queue_pc(drive, cmd, 0, NULL, 0, + sense, 0, 0); } /* If we got an illegal field error, the drive @@ -206,32 +208,30 @@ int ide_cdrom_select_speed(struct cdrom_device_info *cdi, int speed) { ide_drive_t *drive = cdi->handle; struct cdrom_info *cd = drive->driver_data; - struct request rq; struct request_sense sense; u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; int stat; - - ide_cd_init_rq(drive, &rq); - - rq.sense = &sense; + unsigned char cmd[BLK_MAX_CDB]; if (speed == 0) speed = 0xffff; /* set to max */ else speed *= 177; /* Nx to kbytes/s */ - rq.cmd[0] = GPCMD_SET_SPEED; + memset(cmd, 0, BLK_MAX_CDB); + + cmd[0] = GPCMD_SET_SPEED; /* Read Drive speed in kbytes/second MSB/LSB */ - rq.cmd[2] = (speed >> 8) & 0xff; - rq.cmd[3] = speed & 0xff; + cmd[2] = (speed >> 8) & 0xff; + cmd[3] = speed & 0xff; if ((cdi->mask & (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) != (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) { /* Write Drive speed in kbytes/second MSB/LSB */ - rq.cmd[4] = (speed >> 8) & 0xff; - rq.cmd[5] = speed & 0xff; + cmd[4] = (speed >> 8) & 0xff; + cmd[5] = speed & 0xff; } - stat = ide_cd_queue_pc(drive, &rq); + stat = ide_cd_queue_pc(drive, cmd, 0, NULL, 0, &sense, 0, 0); if (!ide_cdrom_get_capabilities(drive, buf)) { ide_cdrom_update_speed(drive, buf); @@ -268,21 +268,19 @@ int ide_cdrom_get_mcn(struct cdrom_device_info *cdi, { ide_drive_t *drive = cdi->handle; int stat, mcnlen; - struct request rq; char buf[24]; + unsigned char cmd[BLK_MAX_CDB]; + unsigned len = sizeof(buf); - ide_cd_init_rq(drive, &rq); + memset(cmd, 0, BLK_MAX_CDB); - rq.data = buf; - rq.data_len = sizeof(buf); + cmd[0] = GPCMD_READ_SUBCHANNEL; + cmd[1] = 2; /* MSF addressing */ + cmd[2] = 0x40; /* request subQ data */ + cmd[3] = 2; /* format */ + cmd[8] = len; - rq.cmd[0] = GPCMD_READ_SUBCHANNEL; - rq.cmd[1] = 2; /* MSF addressing */ - rq.cmd[2] = 0x40; /* request subQ data */ - rq.cmd[3] = 2; /* format */ - rq.cmd[8] = sizeof(buf); - - stat = ide_cd_queue_pc(drive, &rq); + stat = ide_cd_queue_pc(drive, cmd, 0, buf, &len, NULL, 0, 0); if (stat) return stat; @@ -298,14 +296,14 @@ int ide_cdrom_reset(struct cdrom_device_info *cdi) ide_drive_t *drive = cdi->handle; struct cdrom_info *cd = drive->driver_data; struct request_sense sense; - struct request req; + struct request *rq; int ret; - ide_cd_init_rq(drive, &req); - req.cmd_type = REQ_TYPE_SPECIAL; - req.cmd_flags = REQ_QUIET; - ret = ide_do_drive_cmd(drive, &req, ide_wait); - + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_SPECIAL; + rq->cmd_flags = REQ_QUIET; + ret = blk_execute_rq(drive->queue, cd->disk, rq, 0); + blk_put_request(rq); /* * A reset will unlock the door. If it was previously locked, * lock it again. @@ -351,8 +349,8 @@ static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg) struct atapi_toc_entry *first_toc, *last_toc; unsigned long lba_start, lba_end; int stat; - struct request rq; struct request_sense sense; + unsigned char cmd[BLK_MAX_CDB]; stat = ide_cd_get_toc_entry(drive, ti->cdti_trk0, &first_toc); if (stat) @@ -370,14 +368,13 @@ static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg) if (lba_end <= lba_start) return -EINVAL; - ide_cd_init_rq(drive, &rq); + memset(cmd, 0, BLK_MAX_CDB); - rq.sense = &sense; - rq.cmd[0] = GPCMD_PLAY_AUDIO_MSF; - lba_to_msf(lba_start, &rq.cmd[3], &rq.cmd[4], &rq.cmd[5]); - lba_to_msf(lba_end - 1, &rq.cmd[6], &rq.cmd[7], &rq.cmd[8]); + cmd[0] = GPCMD_PLAY_AUDIO_MSF; + lba_to_msf(lba_start, &cmd[3], &cmd[4], &cmd[5]); + lba_to_msf(lba_end - 1, &cmd[6], &cmd[7], &cmd[8]); - return ide_cd_queue_pc(drive, &rq); + return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, &sense, 0, 0); } static int ide_cd_read_tochdr(ide_drive_t *drive, void *arg) @@ -447,8 +444,9 @@ int ide_cdrom_audio_ioctl(struct cdrom_device_info *cdi, int ide_cdrom_packet(struct cdrom_device_info *cdi, struct packet_command *cgc) { - struct request req; ide_drive_t *drive = cdi->handle; + unsigned int flags = 0; + unsigned len = cgc->buflen; if (cgc->timeout <= 0) cgc->timeout = ATAPI_WAIT_PC; @@ -456,24 +454,21 @@ int ide_cdrom_packet(struct cdrom_device_info *cdi, /* here we queue the commands from the uniform CD-ROM layer. the packet must be complete, as we do not touch it at all. */ - ide_cd_init_rq(drive, &req); if (cgc->data_direction == CGC_DATA_WRITE) - req.cmd_flags |= REQ_RW; + flags |= REQ_RW; - memcpy(req.cmd, cgc->cmd, CDROM_PACKET_SIZE); if (cgc->sense) memset(cgc->sense, 0, sizeof(struct request_sense)); - req.data = cgc->buffer; - req.data_len = cgc->buflen; - req.timeout = cgc->timeout; if (cgc->quiet) - req.cmd_flags |= REQ_QUIET; + flags |= REQ_QUIET; - req.sense = cgc->sense; - cgc->stat = ide_cd_queue_pc(drive, &req); + cgc->stat = ide_cd_queue_pc(drive, cgc->cmd, + cgc->data_direction == CGC_DATA_WRITE, + cgc->buffer, &len, + cgc->sense, cgc->timeout, flags); if (!cgc->stat) - cgc->buflen -= req.data_len; + cgc->buflen -= len; return cgc->stat; } diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 8e08d083fce..5f49a4ae9dd 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -198,8 +198,7 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq, } memset(&task, 0, sizeof(task)); - task.tf_flags = IDE_TFLAG_NO_SELECT_MASK; /* FIXME? */ - task.tf_flags |= (IDE_TFLAG_TF | IDE_TFLAG_DEVICE); + task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; if (drive->select.b.lba) { if (lba48) { @@ -617,7 +616,8 @@ static void idedisk_prepare_flush(struct request_queue *q, struct request *rq) */ static int set_multcount(ide_drive_t *drive, int arg) { - struct request rq; + struct request *rq; + int error; if (arg < 0 || arg > drive->id->max_multsect) return -EINVAL; @@ -625,12 +625,13 @@ static int set_multcount(ide_drive_t *drive, int arg) if (drive->special.b.set_multmode) return -EBUSY; - ide_init_drive_cmd(&rq); - rq.cmd_type = REQ_TYPE_ATA_TASKFILE; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_ATA_TASKFILE; drive->mult_req = arg; drive->special.b.set_multmode = 1; - (void)ide_do_drive_cmd(drive, &rq, ide_wait); + error = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_put_request(rq); return (drive->mult_count == arg) ? 0 : -EIO; } diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 653b1ade13d..7ee44f86bc5 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -463,7 +463,7 @@ int ide_dma_setup(ide_drive_t *drive) } /* PRD table */ - if (hwif->mmio) + if (hwif->host_flags & IDE_HFLAG_MMIO) writel(hwif->dmatable_dma, (void __iomem *)(hwif->dma_base + ATA_DMA_TABLE_OFS)); else @@ -692,7 +692,7 @@ static int ide_tune_dma(ide_drive_t *drive) ide_hwif_t *hwif = drive->hwif; u8 speed; - if (noautodma || drive->nodma || (drive->id->capability & 1) == 0) + if (drive->nodma || (drive->id->capability & 1) == 0) return 0; /* consult the list of known "bad" drives */ diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index f05fbc2bd7a..b3689437269 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -286,11 +286,12 @@ static void idefloppy_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc, { struct ide_floppy_obj *floppy = drive->driver_data; - ide_init_drive_cmd(rq); + blk_rq_init(NULL, rq); rq->buffer = (char *) pc; rq->cmd_type = REQ_TYPE_SPECIAL; + rq->cmd_flags |= REQ_PREEMPT; rq->rq_disk = floppy->disk; - (void) ide_do_drive_cmd(drive, rq, ide_preempt); + ide_do_drive_cmd(drive, rq); } static struct ide_atapi_pc *idefloppy_next_pc_storage(ide_drive_t *drive) @@ -311,50 +312,41 @@ static struct request *idefloppy_next_rq_storage(ide_drive_t *drive) return (&floppy->rq_stack[floppy->rq_stack_index++]); } -static void idefloppy_request_sense_callback(ide_drive_t *drive) +static void ide_floppy_callback(ide_drive_t *drive) { idefloppy_floppy_t *floppy = drive->driver_data; - u8 *buf = floppy->pc->buf; + struct ide_atapi_pc *pc = floppy->pc; + int uptodate = pc->error ? 0 : 1; debug_log("Reached %s\n", __func__); - if (!floppy->pc->error) { - floppy->sense_key = buf[2] & 0x0F; - floppy->asc = buf[12]; - floppy->ascq = buf[13]; - floppy->progress_indication = buf[15] & 0x80 ? - (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; + if (floppy->failed_pc == pc) + floppy->failed_pc = NULL; - if (floppy->failed_pc) - debug_log("pc = %x, sense key = %x, asc = %x," - " ascq = %x\n", - floppy->failed_pc->c[0], - floppy->sense_key, - floppy->asc, - floppy->ascq); - else - debug_log("sense key = %x, asc = %x, ascq = %x\n", - floppy->sense_key, - floppy->asc, - floppy->ascq); + if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || + (pc->rq && blk_pc_request(pc->rq))) + uptodate = 1; /* FIXME */ + else if (pc->c[0] == GPCMD_REQUEST_SENSE) { + u8 *buf = floppy->pc->buf; + if (!pc->error) { + floppy->sense_key = buf[2] & 0x0F; + floppy->asc = buf[12]; + floppy->ascq = buf[13]; + floppy->progress_indication = buf[15] & 0x80 ? + (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; - idefloppy_end_request(drive, 1, 0); - } else { - printk(KERN_ERR "Error in REQUEST SENSE itself - Aborting" - " request!\n"); - idefloppy_end_request(drive, 0, 0); - } -} + if (floppy->failed_pc) + debug_log("pc = %x, ", floppy->failed_pc->c[0]); -/* General packet command callback function. */ -static void idefloppy_pc_callback(ide_drive_t *drive) -{ - idefloppy_floppy_t *floppy = drive->driver_data; - - debug_log("Reached %s\n", __func__); + debug_log("sense key = %x, asc = %x, ascq = %x\n", + floppy->sense_key, floppy->asc, floppy->ascq); + } else + printk(KERN_ERR "Error in REQUEST SENSE itself - " + "Aborting request!\n"); + } - idefloppy_end_request(drive, floppy->pc->error ? 0 : 1, 0); + idefloppy_end_request(drive, uptodate, 0); } static void idefloppy_init_pc(struct ide_atapi_pc *pc) @@ -365,7 +357,7 @@ static void idefloppy_init_pc(struct ide_atapi_pc *pc) pc->req_xfer = 0; pc->buf = pc->pc_buf; pc->buf_size = IDEFLOPPY_PC_BUFFER_SIZE; - pc->idefloppy_callback = &idefloppy_pc_callback; + pc->callback = ide_floppy_callback; } static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc) @@ -374,7 +366,6 @@ static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc) pc->c[0] = GPCMD_REQUEST_SENSE; pc->c[4] = 255; pc->req_xfer = 18; - pc->idefloppy_callback = &idefloppy_request_sense_callback; } /* @@ -397,174 +388,19 @@ static void idefloppy_retry_pc(ide_drive_t *drive) static ide_startstop_t idefloppy_pc_intr(ide_drive_t *drive) { idefloppy_floppy_t *floppy = drive->driver_data; - ide_hwif_t *hwif = drive->hwif; - struct ide_atapi_pc *pc = floppy->pc; - struct request *rq = pc->rq; - xfer_func_t *xferfunc; - unsigned int temp; - int dma_error = 0; - u16 bcount; - u8 stat, ireason; - - debug_log("Reached %s interrupt handler\n", __func__); - - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { - dma_error = hwif->dma_ops->dma_end(drive); - if (dma_error) { - printk(KERN_ERR "%s: DMA %s error\n", drive->name, - rq_data_dir(rq) ? "write" : "read"); - pc->flags |= PC_FLAG_DMA_ERROR; - } else { - pc->xferred = pc->req_xfer; - idefloppy_update_buffers(drive, pc); - } - debug_log("DMA finished\n"); - } - - /* Clear the interrupt */ - stat = ide_read_status(drive); - - /* No more interrupts */ - if ((stat & DRQ_STAT) == 0) { - debug_log("Packet command completed, %d bytes transferred\n", - pc->xferred); - pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; - - local_irq_enable_in_hardirq(); - - if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) { - /* Error detected */ - debug_log("%s: I/O error\n", drive->name); - rq->errors++; - if (pc->c[0] == GPCMD_REQUEST_SENSE) { - printk(KERN_ERR "ide-floppy: I/O error in " - "request sense command\n"); - return ide_do_reset(drive); - } - /* Retry operation */ - idefloppy_retry_pc(drive); - /* queued, but not started */ - return ide_stopped; - } - pc->error = 0; - if (floppy->failed_pc == pc) - floppy->failed_pc = NULL; - /* Command finished - Call the callback function */ - pc->idefloppy_callback(drive); - return ide_stopped; - } - - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { - pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; - printk(KERN_ERR "ide-floppy: The floppy wants to issue " - "more interrupts in DMA mode\n"); - ide_dma_off(drive); - return ide_do_reset(drive); - } - - /* Get the number of bytes to transfer */ - bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) | - hwif->INB(hwif->io_ports.lbam_addr); - /* on this interrupt */ - ireason = hwif->INB(hwif->io_ports.nsect_addr); - - if (ireason & CD) { - printk(KERN_ERR "ide-floppy: CoD != 0 in %s\n", __func__); - return ide_do_reset(drive); - } - if (((ireason & IO) == IO) == !!(pc->flags & PC_FLAG_WRITING)) { - /* Hopefully, we will never get here */ - printk(KERN_ERR "ide-floppy: We wanted to %s, ", - (ireason & IO) ? "Write" : "Read"); - printk(KERN_ERR "but the floppy wants us to %s !\n", - (ireason & IO) ? "Read" : "Write"); - return ide_do_reset(drive); - } - if (!(pc->flags & PC_FLAG_WRITING)) { - /* Reading - Check that we have enough space */ - temp = pc->xferred + bcount; - if (temp > pc->req_xfer) { - if (temp > pc->buf_size) { - printk(KERN_ERR "ide-floppy: The floppy wants " - "to send us more data than expected " - "- discarding data\n"); - ide_pad_transfer(drive, 0, bcount); - - ide_set_handler(drive, - &idefloppy_pc_intr, - IDEFLOPPY_WAIT_CMD, - NULL); - return ide_started; - } - debug_log("The floppy wants to send us more data than" - " expected - allowing transfer\n"); - } - } - if (pc->flags & PC_FLAG_WRITING) - xferfunc = hwif->output_data; - else - xferfunc = hwif->input_data; - - if (pc->buf) - xferfunc(drive, NULL, pc->cur_pos, bcount); - else - ide_floppy_io_buffers(drive, pc, bcount, - !!(pc->flags & PC_FLAG_WRITING)); - - /* Update the current position */ - pc->xferred += bcount; - pc->cur_pos += bcount; - - /* And set the interrupt handler again */ - ide_set_handler(drive, &idefloppy_pc_intr, IDEFLOPPY_WAIT_CMD, NULL); - return ide_started; -} - -/* - * This is the original routine that did the packet transfer. - * It fails at high speeds on the Iomega ZIP drive, so there's a slower version - * for that drive below. The algorithm is chosen based on drive type - */ -static ide_startstop_t idefloppy_transfer_pc(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - ide_startstop_t startstop; - idefloppy_floppy_t *floppy = drive->driver_data; - u8 ireason; - - if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) { - printk(KERN_ERR "ide-floppy: Strange, packet command " - "initiated yet DRQ isn't asserted\n"); - return startstop; - } - ireason = hwif->INB(hwif->io_ports.nsect_addr); - if ((ireason & CD) == 0 || (ireason & IO)) { - printk(KERN_ERR "ide-floppy: (IO,CoD) != (0,1) while " - "issuing a packet command\n"); - return ide_do_reset(drive); - } - /* Set the interrupt routine */ - ide_set_handler(drive, &idefloppy_pc_intr, IDEFLOPPY_WAIT_CMD, NULL); - - /* Send the actual packet */ - hwif->output_data(drive, NULL, floppy->pc->c, 12); - - return ide_started; + return ide_pc_intr(drive, floppy->pc, idefloppy_pc_intr, + IDEFLOPPY_WAIT_CMD, NULL, idefloppy_update_buffers, + idefloppy_retry_pc, NULL, ide_floppy_io_buffers); } - /* * What we have here is a classic case of a top half / bottom half interrupt * service routine. In interrupt mode, the device sends an interrupt to signal * that it is ready to receive a packet. However, we need to delay about 2-3 * ticks before issuing the packet or we gets in trouble. - * - * So, follow carefully. transfer_pc1 is called as an interrupt (or directly). - * In either case, when the device says it's ready for a packet, we schedule - * the packet transfer to occur about 2-3 ticks later in transfer_pc2. */ -static int idefloppy_transfer_pc2(ide_drive_t *drive) +static int idefloppy_transfer_pc(ide_drive_t *drive) { idefloppy_floppy_t *floppy = drive->driver_data; @@ -575,24 +411,19 @@ static int idefloppy_transfer_pc2(ide_drive_t *drive) return IDEFLOPPY_WAIT_CMD; } -static ide_startstop_t idefloppy_transfer_pc1(ide_drive_t *drive) + +/* + * Called as an interrupt (or directly). When the device says it's ready for a + * packet, we schedule the packet transfer to occur about 2-3 ticks later in + * transfer_pc. + */ +static ide_startstop_t idefloppy_start_pc_transfer(ide_drive_t *drive) { - ide_hwif_t *hwif = drive->hwif; idefloppy_floppy_t *floppy = drive->driver_data; - ide_startstop_t startstop; - u8 ireason; + struct ide_atapi_pc *pc = floppy->pc; + ide_expiry_t *expiry; + unsigned int timeout; - if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) { - printk(KERN_ERR "ide-floppy: Strange, packet command " - "initiated yet DRQ isn't asserted\n"); - return startstop; - } - ireason = hwif->INB(hwif->io_ports.nsect_addr); - if ((ireason & CD) == 0 || (ireason & IO)) { - printk(KERN_ERR "ide-floppy: (IO,CoD) != (0,1) " - "while issuing a packet command\n"); - return ide_do_reset(drive); - } /* * The following delay solves a problem with ATAPI Zip 100 drives * where the Busy flag was apparently being deasserted before the @@ -601,10 +432,15 @@ static ide_startstop_t idefloppy_transfer_pc1(ide_drive_t *drive) * 40 and 50msec work well. idefloppy_pc_intr will not be actually * used until after the packet is moved in about 50 msec. */ + if (pc->flags & PC_FLAG_ZIP_DRIVE) { + timeout = floppy->ticks; + expiry = &idefloppy_transfer_pc; + } else { + timeout = IDEFLOPPY_WAIT_CMD; + expiry = NULL; + } - ide_set_handler(drive, &idefloppy_pc_intr, floppy->ticks, - &idefloppy_transfer_pc2); - return ide_started; + return ide_transfer_pc(drive, pc, idefloppy_pc_intr, timeout, expiry); } static void ide_floppy_report_error(idefloppy_floppy_t *floppy, @@ -627,10 +463,6 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc) { idefloppy_floppy_t *floppy = drive->driver_data; - ide_hwif_t *hwif = drive->hwif; - ide_handler_t *pkt_xfer_routine; - u16 bcount; - u8 dma; if (floppy->failed_pc == NULL && pc->c[0] != GPCMD_REQUEST_SENSE) @@ -645,65 +477,16 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive, pc->error = IDEFLOPPY_ERROR_GENERAL; floppy->failed_pc = NULL; - pc->idefloppy_callback(drive); + pc->callback(drive); return ide_stopped; } debug_log("Retry number - %d\n", pc->retries); pc->retries++; - /* We haven't transferred any data yet */ - pc->xferred = 0; - pc->cur_pos = pc->buf; - bcount = min(pc->req_xfer, 63 * 1024); - - if (pc->flags & PC_FLAG_DMA_ERROR) { - pc->flags &= ~PC_FLAG_DMA_ERROR; - ide_dma_off(drive); - } - dma = 0; - - if ((pc->flags & PC_FLAG_DMA_RECOMMENDED) && drive->using_dma) - dma = !hwif->dma_ops->dma_setup(drive); - ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK | - IDE_TFLAG_OUT_DEVICE, bcount, dma); - - if (dma) { - /* Begin DMA, if necessary */ - pc->flags |= PC_FLAG_DMA_IN_PROGRESS; - hwif->dma_ops->dma_start(drive); - } - - /* Can we transfer the packet when we get the interrupt or wait? */ - if (floppy->flags & IDEFLOPPY_FLAG_ZIP_DRIVE) { - /* wait */ - pkt_xfer_routine = &idefloppy_transfer_pc1; - } else { - /* immediate */ - pkt_xfer_routine = &idefloppy_transfer_pc; - } - - if (floppy->flags & IDEFLOPPY_FLAG_DRQ_INTERRUPT) { - /* Issue the packet command */ - ide_execute_command(drive, WIN_PACKETCMD, - pkt_xfer_routine, - IDEFLOPPY_WAIT_CMD, - NULL); - return ide_started; - } else { - /* Issue the packet command */ - ide_execute_pkt_cmd(drive); - return (*pkt_xfer_routine) (drive); - } -} - -static void idefloppy_rw_callback(ide_drive_t *drive) -{ - debug_log("Reached %s\n", __func__); - - idefloppy_end_request(drive, 1, 0); - return; + return ide_issue_pc(drive, pc, idefloppy_start_pc_transfer, + IDEFLOPPY_WAIT_CMD, NULL); } static void idefloppy_create_prevent_cmd(struct ide_atapi_pc *pc, int prevent) @@ -800,21 +583,19 @@ static void idefloppy_create_rw_cmd(idefloppy_floppy_t *floppy, put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]); put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]); - pc->idefloppy_callback = &idefloppy_rw_callback; pc->rq = rq; pc->b_count = cmd == READ ? 0 : rq->bio->bi_size; if (rq->cmd_flags & REQ_RW) pc->flags |= PC_FLAG_WRITING; pc->buf = NULL; pc->req_xfer = pc->buf_size = blocks * floppy->block_size; - pc->flags |= PC_FLAG_DMA_RECOMMENDED; + pc->flags |= PC_FLAG_DMA_OK; } static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy, struct ide_atapi_pc *pc, struct request *rq) { idefloppy_init_pc(pc); - pc->idefloppy_callback = &idefloppy_rw_callback; memcpy(pc->c, rq->cmd, sizeof(pc->c)); pc->rq = rq; pc->b_count = rq->data_len; @@ -822,7 +603,7 @@ static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy, pc->flags |= PC_FLAG_WRITING; pc->buf = rq->data; if (rq->bio) - pc->flags |= PC_FLAG_DMA_RECOMMENDED; + pc->flags |= PC_FLAG_DMA_OK; /* * possibly problematic, doesn't look like ide-floppy correctly * handled scattered requests if dma fails... @@ -875,7 +656,14 @@ static ide_startstop_t idefloppy_do_request(ide_drive_t *drive, return ide_stopped; } + if (floppy->flags & IDEFLOPPY_FLAG_DRQ_INTERRUPT) + pc->flags |= PC_FLAG_DRQ_INTERRUPT; + + if (floppy->flags & IDEFLOPPY_FLAG_ZIP_DRIVE) + pc->flags |= PC_FLAG_ZIP_DRIVE; + pc->rq = rq; + return idefloppy_issue_pc(drive, pc); } @@ -886,14 +674,16 @@ static ide_startstop_t idefloppy_do_request(ide_drive_t *drive, static int idefloppy_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc) { struct ide_floppy_obj *floppy = drive->driver_data; - struct request rq; + struct request *rq; + int error; - ide_init_drive_cmd(&rq); - rq.buffer = (char *) pc; - rq.cmd_type = REQ_TYPE_SPECIAL; - rq.rq_disk = floppy->disk; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->buffer = (char *) pc; + rq->cmd_type = REQ_TYPE_SPECIAL; + error = blk_execute_rq(drive->queue, floppy->disk, rq, 0); + blk_put_request(rq); - return ide_do_drive_cmd(drive, &rq, ide_wait); + return error; } /* @@ -1622,11 +1412,6 @@ static int ide_floppy_probe(ide_drive_t *drive) " of ide-floppy\n", drive->name); goto failed; } - if (drive->scsi) { - printk(KERN_INFO "ide-floppy: passing drive %s to ide-scsi" - " emulation.\n", drive->name); - goto failed; - } floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL); if (!floppy) { printk(KERN_ERR "ide-floppy: %s: Can't allocate a floppy" diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 696525342e9..28057747c1f 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -358,31 +358,6 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err) EXPORT_SYMBOL(ide_end_drive_cmd); -/** - * try_to_flush_leftover_data - flush junk - * @drive: drive to flush - * - * try_to_flush_leftover_data() is invoked in response to a drive - * unexpectedly having its DRQ_STAT bit set. As an alternative to - * resetting the drive, this routine tries to clear the condition - * by read a sector's worth of data from the drive. Of course, - * this may not help if the drive is *waiting* for data from *us*. - */ -static void try_to_flush_leftover_data (ide_drive_t *drive) -{ - int i = (drive->mult_count ? drive->mult_count : 1) * SECTOR_WORDS; - - if (drive->media != ide_disk) - return; - while (i > 0) { - u32 buffer[16]; - u32 wcount = (i > 16) ? 16 : i; - - i -= wcount; - drive->hwif->input_data(drive, NULL, buffer, wcount * 4); - } -} - static void ide_kill_rq(ide_drive_t *drive, struct request *rq) { if (rq->rq_disk) { @@ -422,8 +397,11 @@ static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8 } if ((stat & DRQ_STAT) && rq_data_dir(rq) == READ && - (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) - try_to_flush_leftover_data(drive); + (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) { + int nsect = drive->mult_count ? drive->mult_count : 1; + + ide_pad_transfer(drive, READ, nsect * SECTOR_SIZE); + } if (rq->errors >= ERROR_MAX || blk_noretry_request(rq)) { ide_kill_rq(drive, rq); @@ -459,7 +437,7 @@ static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT)) /* force an abort */ - hwif->OUTBSYNC(drive, WIN_IDLEIMMEDIATE, + hwif->OUTBSYNC(hwif, WIN_IDLEIMMEDIATE, hwif->io_ports.command_addr); if (rq->errors >= ERROR_MAX) { @@ -1539,88 +1517,30 @@ irqreturn_t ide_intr (int irq, void *dev_id) } /** - * ide_init_drive_cmd - initialize a drive command request - * @rq: request object - * - * Initialize a request before we fill it in and send it down to - * ide_do_drive_cmd. Commands must be set up by this function. Right - * now it doesn't do a lot, but if that changes abusers will have a - * nasty surprise. - */ - -void ide_init_drive_cmd (struct request *rq) -{ - blk_rq_init(NULL, rq); -} - -EXPORT_SYMBOL(ide_init_drive_cmd); - -/** * ide_do_drive_cmd - issue IDE special command * @drive: device to issue command * @rq: request to issue - * @action: action for processing * * This function issues a special IDE device request * onto the request queue. * - * If action is ide_wait, then the rq is queued at the end of the - * request queue, and the function sleeps until it has been processed. - * This is for use when invoked from an ioctl handler. - * - * If action is ide_preempt, then the rq is queued at the head of - * the request queue, displacing the currently-being-processed - * request and this function returns immediately without waiting - * for the new rq to be completed. This is VERY DANGEROUS, and is - * intended for careful use by the ATAPI tape/cdrom driver code. - * - * If action is ide_end, then the rq is queued at the end of the - * request queue, and the function returns immediately without waiting - * for the new rq to be completed. This is again intended for careful - * use by the ATAPI tape/cdrom driver code. + * the rq is queued at the head of the request queue, displacing + * the currently-being-processed request and this function + * returns immediately without waiting for the new rq to be + * completed. This is VERY DANGEROUS, and is intended for + * careful use by the ATAPI tape/cdrom driver code. */ - -int ide_do_drive_cmd (ide_drive_t *drive, struct request *rq, ide_action_t action) + +void ide_do_drive_cmd(ide_drive_t *drive, struct request *rq) { unsigned long flags; ide_hwgroup_t *hwgroup = HWGROUP(drive); - DECLARE_COMPLETION_ONSTACK(wait); - int where = ELEVATOR_INSERT_BACK, err; - int must_wait = (action == ide_wait || action == ide_head_wait); - - rq->errors = 0; - - /* - * we need to hold an extra reference to request for safe inspection - * after completion - */ - if (must_wait) { - rq->ref_count++; - rq->end_io_data = &wait; - rq->end_io = blk_end_sync_rq; - } spin_lock_irqsave(&ide_lock, flags); - if (action == ide_preempt) - hwgroup->rq = NULL; - if (action == ide_preempt || action == ide_head_wait) { - where = ELEVATOR_INSERT_FRONT; - rq->cmd_flags |= REQ_PREEMPT; - } - __elv_add_request(drive->queue, rq, where, 0); - ide_do_request(hwgroup, IDE_NO_IRQ); + hwgroup->rq = NULL; + __elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 1); + __generic_unplug_device(drive->queue); spin_unlock_irqrestore(&ide_lock, flags); - - err = 0; - if (must_wait) { - wait_for_completion(&wait); - if (rq->errors) - err = -EIO; - - blk_put_request(rq); - } - - return err; } EXPORT_SYMBOL(ide_do_drive_cmd); @@ -1637,6 +1557,8 @@ void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma) task.tf.lbah = (bcount >> 8) & 0xff; ide_tf_dump(drive->name, &task.tf); + ide_set_irq(drive, 1); + SELECT_MASK(drive, 0); drive->hwif->tf_load(drive, &task); } diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 0daf923541f..80ad4f234f3 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -42,7 +42,7 @@ static void ide_outb (u8 val, unsigned long port) outb(val, port); } -static void ide_outbsync (ide_drive_t *drive, u8 addr, unsigned long port) +static void ide_outbsync(ide_hwif_t *hwif, u8 addr, unsigned long port) { outb(addr, port); } @@ -68,7 +68,7 @@ static void ide_mm_outb (u8 value, unsigned long port) writeb(value, (void __iomem *) port); } -static void ide_mm_outbsync (ide_drive_t *drive, u8 value, unsigned long port) +static void ide_mm_outbsync(ide_hwif_t *hwif, u8 value, unsigned long port) { writeb(value, (void __iomem *) port); } @@ -95,7 +95,7 @@ void SELECT_DRIVE (ide_drive_t *drive) hwif->OUTB(drive->select.all, hwif->io_ports.device_addr); } -static void SELECT_MASK(ide_drive_t *drive, int mask) +void SELECT_MASK(ide_drive_t *drive, int mask) { const struct ide_port_ops *port_ops = drive->hwif->port_ops; @@ -120,11 +120,6 @@ static void ide_tf_load(ide_drive_t *drive, ide_task_t *task) if (task->tf_flags & IDE_TFLAG_FLAGGED) HIHI = 0xFF; - ide_set_irq(drive, 1); - - if ((task->tf_flags & IDE_TFLAG_NO_SELECT_MASK) == 0) - SELECT_MASK(drive, 0); - if (task->tf_flags & IDE_TFLAG_OUT_DATA) { u16 data = (tf->hob_data << 8) | tf->data; @@ -191,7 +186,7 @@ static void ide_tf_read(ide_drive_t *drive, ide_task_t *task) } /* be sure we're looking at the low order bits */ - tf_outb(drive->ctl & ~0x80, io_ports->ctl_addr); + tf_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = tf_inb(io_ports->nsect_addr); @@ -205,7 +200,7 @@ static void ide_tf_read(ide_drive_t *drive, ide_task_t *task) tf->device = tf_inb(io_ports->device_addr); if (task->tf_flags & IDE_TFLAG_LBA48) { - tf_outb(drive->ctl | 0x80, io_ports->ctl_addr); + tf_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) tf->hob_feature = tf_inb(io_ports->feature_addr); @@ -689,9 +684,9 @@ int ide_driveid_update(ide_drive_t *drive) */ SELECT_MASK(drive, 1); - ide_set_irq(drive, 1); + ide_set_irq(drive, 0); msleep(50); - hwif->OUTBSYNC(drive, WIN_IDENTIFY, hwif->io_ports.command_addr); + hwif->OUTBSYNC(hwif, WIN_IDENTIFY, hwif->io_ports.command_addr); timeout = jiffies + WAIT_WORSTCASE; do { if (time_after(jiffies, timeout)) { @@ -744,9 +739,6 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) int error = 0; u8 stat; -// while (HWGROUP(drive)->busy) -// msleep(50); - #ifdef CONFIG_BLK_DEV_IDEDMA if (hwif->dma_ops) /* check if host supports DMA */ hwif->dma_ops->dma_host_set(drive, 0); @@ -781,7 +773,7 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) ide_set_irq(drive, 0); hwif->OUTB(speed, io_ports->nsect_addr); hwif->OUTB(SETFEATURES_XFER, io_ports->feature_addr); - hwif->OUTBSYNC(drive, WIN_SETFEATURES, io_ports->command_addr); + hwif->OUTBSYNC(hwif, WIN_SETFEATURES, io_ports->command_addr); if (drive->quirk_list == 2) ide_set_irq(drive, 1); @@ -889,7 +881,7 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler, spin_lock_irqsave(&ide_lock, flags); __ide_set_handler(drive, handler, timeout, expiry); - hwif->OUTBSYNC(drive, cmd, hwif->io_ports.command_addr); + hwif->OUTBSYNC(hwif, cmd, hwif->io_ports.command_addr); /* * Drive takes 400nS to respond, we must avoid the IRQ being * serviced before that. @@ -907,7 +899,7 @@ void ide_execute_pkt_cmd(ide_drive_t *drive) unsigned long flags; spin_lock_irqsave(&ide_lock, flags); - hwif->OUTBSYNC(drive, WIN_PACKETCMD, hwif->io_ports.command_addr); + hwif->OUTBSYNC(hwif, WIN_PACKETCMD, hwif->io_ports.command_addr); ndelay(400); spin_unlock_irqrestore(&ide_lock, flags); } @@ -1102,7 +1094,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) pre_reset(drive); SELECT_DRIVE(drive); udelay (20); - hwif->OUTBSYNC(drive, WIN_SRST, io_ports->command_addr); + hwif->OUTBSYNC(hwif, WIN_SRST, io_ports->command_addr); ndelay(400); hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE; hwgroup->polling = 1; @@ -1133,14 +1125,14 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) * recover from reset very quickly, saving us the first 50ms wait time. */ /* set SRST and nIEN */ - hwif->OUTBSYNC(drive, drive->ctl|6, io_ports->ctl_addr); + hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS | 6, io_ports->ctl_addr); /* more than enough time */ udelay(10); if (drive->quirk_list == 2) - ctl = drive->ctl; /* clear SRST and nIEN */ + ctl = ATA_DEVCTL_OBS; /* clear SRST and nIEN */ else - ctl = drive->ctl | 2; /* clear SRST, leave nIEN */ - hwif->OUTBSYNC(drive, ctl, io_ports->ctl_addr); + ctl = ATA_DEVCTL_OBS | 2; /* clear SRST, leave nIEN */ + hwif->OUTBSYNC(hwif, ctl, io_ports->ctl_addr); /* more than enough time */ udelay(10); hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE; diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 26e68b65b7c..d21e51a02c3 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -293,7 +293,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) hwif->OUTB(0, io_ports->feature_addr); /* ask drive for ID */ - hwif->OUTBSYNC(drive, cmd, io_ports->command_addr); + hwif->OUTBSYNC(hwif, cmd, hwif->io_ports.command_addr); timeout = ((cmd == WIN_IDENTIFY) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2; timeout += jiffies; @@ -478,9 +478,9 @@ static int do_probe (ide_drive_t *drive, u8 cmd) printk(KERN_ERR "%s: no response (status = 0x%02x), " "resetting drive\n", drive->name, stat); msleep(50); - hwif->OUTB(drive->select.all, io_ports->device_addr); + SELECT_DRIVE(drive); msleep(50); - hwif->OUTBSYNC(drive, WIN_SRST, io_ports->command_addr); + hwif->OUTBSYNC(hwif, WIN_SRST, io_ports->command_addr); (void)ide_busy_sleep(hwif); rc = try_to_identify(drive, cmd); } @@ -516,7 +516,7 @@ static void enable_nest (ide_drive_t *drive) printk("%s: enabling %s -- ", hwif->name, drive->id->model); SELECT_DRIVE(drive); msleep(50); - hwif->OUTBSYNC(drive, EXABYTE_ENABLE_NEST, hwif->io_ports.command_addr); + hwif->OUTBSYNC(hwif, EXABYTE_ENABLE_NEST, hwif->io_ports.command_addr); if (ide_busy_sleep(hwif)) { printk(KERN_CONT "failed (timeout)\n"); @@ -1065,7 +1065,7 @@ static int init_irq (ide_hwif_t *hwif) if (io_ports->ctl_addr) /* clear nIEN */ - hwif->OUTB(0x08, io_ports->ctl_addr); + hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS, io_ports->ctl_addr); if (request_irq(hwif->irq,&ide_intr,sa,hwif->name,hwgroup)) goto out_unlink; diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index a3d228302d2..f9cf1670e4e 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -144,9 +144,6 @@ enum { /*************************** End of tunable parameters ***********************/ -/* Read/Write error simulation */ -#define SIMULATE_ERRORS 0 - /* tape directions */ enum { IDETAPE_DIR_NONE = (1 << 0), @@ -442,7 +439,7 @@ static void idetape_output_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, } } -static void idetape_update_buffers(struct ide_atapi_pc *pc) +static void idetape_update_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc) { struct idetape_bh *bh = pc->bh; int count; @@ -506,18 +503,6 @@ static struct request *idetape_next_rq_storage(ide_drive_t *drive) return (&tape->rq_stack[tape->rq_stack_index++]); } -static void idetape_init_pc(struct ide_atapi_pc *pc) -{ - memset(pc->c, 0, 12); - pc->retries = 0; - pc->flags = 0; - pc->req_xfer = 0; - pc->buf = pc->pc_buf; - pc->buf_size = IDETAPE_PC_BUFFER_SIZE; - pc->bh = NULL; - pc->b_data = NULL; -} - /* * called on each failed packet command retry to analyze the request sense. We * currently do not utilize this information. @@ -538,8 +523,8 @@ static void idetape_analyze_error(ide_drive_t *drive, u8 *sense) if (pc->flags & PC_FLAG_DMA_ERROR) { pc->xferred = pc->req_xfer - tape->blk_size * - be32_to_cpu(get_unaligned((u32 *)&sense[3])); - idetape_update_buffers(pc); + get_unaligned_be32(&sense[3]); + idetape_update_buffers(drive, pc); } /* @@ -634,21 +619,78 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects) return 0; } -static ide_startstop_t idetape_request_sense_callback(ide_drive_t *drive) +static void ide_tape_callback(ide_drive_t *drive) { idetape_tape_t *tape = drive->driver_data; + struct ide_atapi_pc *pc = tape->pc; + int uptodate = pc->error ? 0 : 1; debug_log(DBG_PROCS, "Enter %s\n", __func__); - if (!tape->pc->error) { - idetape_analyze_error(drive, tape->pc->buf); - idetape_end_request(drive, 1, 0); - } else { - printk(KERN_ERR "ide-tape: Error in REQUEST SENSE itself - " - "Aborting request!\n"); - idetape_end_request(drive, 0, 0); + if (tape->failed_pc == pc) + tape->failed_pc = NULL; + + if (pc->c[0] == REQUEST_SENSE) { + if (uptodate) + idetape_analyze_error(drive, pc->buf); + else + printk(KERN_ERR "ide-tape: Error in REQUEST SENSE " + "itself - Aborting request!\n"); + } else if (pc->c[0] == READ_6 || pc->c[0] == WRITE_6) { + struct request *rq = drive->hwif->hwgroup->rq; + int blocks = pc->xferred / tape->blk_size; + + tape->avg_size += blocks * tape->blk_size; + + if (time_after_eq(jiffies, tape->avg_time + HZ)) { + tape->avg_speed = tape->avg_size * HZ / + (jiffies - tape->avg_time) / 1024; + tape->avg_size = 0; + tape->avg_time = jiffies; + } + + tape->first_frame += blocks; + rq->current_nr_sectors -= blocks; + + if (pc->error) + uptodate = pc->error; + } else if (pc->c[0] == READ_POSITION && uptodate) { + u8 *readpos = tape->pc->buf; + + debug_log(DBG_SENSE, "BOP - %s\n", + (readpos[0] & 0x80) ? "Yes" : "No"); + debug_log(DBG_SENSE, "EOP - %s\n", + (readpos[0] & 0x40) ? "Yes" : "No"); + + if (readpos[0] & 0x4) { + printk(KERN_INFO "ide-tape: Block location is unknown" + "to the tape\n"); + clear_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags); + uptodate = 0; + } else { + debug_log(DBG_SENSE, "Block Location - %u\n", + be32_to_cpu(*(u32 *)&readpos[4])); + + tape->partition = readpos[1]; + tape->first_frame = be32_to_cpu(*(u32 *)&readpos[4]); + set_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags); + } } - return ide_stopped; + + idetape_end_request(drive, uptodate, 0); +} + +static void idetape_init_pc(struct ide_atapi_pc *pc) +{ + memset(pc->c, 0, 12); + pc->retries = 0; + pc->flags = 0; + pc->req_xfer = 0; + pc->buf = pc->pc_buf; + pc->buf_size = IDETAPE_PC_BUFFER_SIZE; + pc->bh = NULL; + pc->b_data = NULL; + pc->callback = ide_tape_callback; } static void idetape_create_request_sense_cmd(struct ide_atapi_pc *pc) @@ -657,7 +699,6 @@ static void idetape_create_request_sense_cmd(struct ide_atapi_pc *pc) pc->c[0] = REQUEST_SENSE; pc->c[4] = 20; pc->req_xfer = 20; - pc->idetape_callback = &idetape_request_sense_callback; } static void idetape_init_rq(struct request *rq, u8 cmd) @@ -688,9 +729,10 @@ static void idetape_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc, struct ide_tape_obj *tape = drive->driver_data; idetape_init_rq(rq, REQ_IDETAPE_PC1); + rq->cmd_flags |= REQ_PREEMPT; rq->buffer = (char *) pc; rq->rq_disk = tape->disk; - (void) ide_do_drive_cmd(drive, rq, ide_preempt); + ide_do_drive_cmd(drive, rq); } /* @@ -698,7 +740,7 @@ static void idetape_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc, * last packet command. We queue a request sense packet command in * the head of the request list. */ -static ide_startstop_t idetape_retry_pc (ide_drive_t *drive) +static void idetape_retry_pc(ide_drive_t *drive) { idetape_tape_t *tape = drive->driver_data; struct ide_atapi_pc *pc; @@ -710,7 +752,6 @@ static ide_startstop_t idetape_retry_pc (ide_drive_t *drive) idetape_create_request_sense_cmd(pc); set_bit(IDETAPE_FLAG_IGNORE_DSC, &tape->flags); idetape_queue_pc_head(drive, pc, rq); - return ide_stopped; } /* @@ -727,7 +768,26 @@ static void idetape_postpone_request(ide_drive_t *drive) ide_stall_queue(drive, tape->dsc_poll_freq); } -typedef void idetape_io_buf(ide_drive_t *, struct ide_atapi_pc *, unsigned int); +static void ide_tape_handle_dsc(ide_drive_t *drive) +{ + idetape_tape_t *tape = drive->driver_data; + + /* Media access command */ + tape->dsc_polling_start = jiffies; + tape->dsc_poll_freq = IDETAPE_DSC_MA_FAST; + tape->dsc_timeout = jiffies + IDETAPE_DSC_MA_TIMEOUT; + /* Allow ide.c to handle other requests */ + idetape_postpone_request(drive); +} + +static void ide_tape_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, + unsigned int bcount, int write) +{ + if (write) + idetape_output_buffers(drive, pc, bcount); + else + idetape_input_buffers(drive, pc, bcount); +} /* * This is the usual interrupt handler which will be called during a packet @@ -738,169 +798,11 @@ typedef void idetape_io_buf(ide_drive_t *, struct ide_atapi_pc *, unsigned int); */ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive) { - ide_hwif_t *hwif = drive->hwif; idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc *pc = tape->pc; - xfer_func_t *xferfunc; - idetape_io_buf *iobuf; - unsigned int temp; -#if SIMULATE_ERRORS - static int error_sim_count; -#endif - u16 bcount; - u8 stat, ireason; - - debug_log(DBG_PROCS, "Enter %s - interrupt handler\n", __func__); - - /* Clear the interrupt */ - stat = ide_read_status(drive); - - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { - if (hwif->dma_ops->dma_end(drive) || (stat & ERR_STAT)) { - /* - * A DMA error is sometimes expected. For example, - * if the tape is crossing a filemark during a - * READ command, it will issue an irq and position - * itself before the filemark, so that only a partial - * data transfer will occur (which causes the DMA - * error). In that case, we will later ask the tape - * how much bytes of the original request were - * actually transferred (we can't receive that - * information from the DMA engine on most chipsets). - */ - - /* - * On the contrary, a DMA error is never expected; - * it usually indicates a hardware error or abort. - * If the tape crosses a filemark during a READ - * command, it will issue an irq and position itself - * after the filemark (not before). Only a partial - * data transfer will occur, but no DMA error. - * (AS, 19 Apr 2001) - */ - pc->flags |= PC_FLAG_DMA_ERROR; - } else { - pc->xferred = pc->req_xfer; - idetape_update_buffers(pc); - } - debug_log(DBG_PROCS, "DMA finished\n"); - - } - - /* No more interrupts */ - if ((stat & DRQ_STAT) == 0) { - debug_log(DBG_SENSE, "Packet command completed, %d bytes" - " transferred\n", pc->xferred); - - pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; - local_irq_enable(); - -#if SIMULATE_ERRORS - if ((pc->c[0] == WRITE_6 || pc->c[0] == READ_6) && - (++error_sim_count % 100) == 0) { - printk(KERN_INFO "ide-tape: %s: simulating error\n", - tape->name); - stat |= ERR_STAT; - } -#endif - if ((stat & ERR_STAT) && pc->c[0] == REQUEST_SENSE) - stat &= ~ERR_STAT; - if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) { - /* Error detected */ - debug_log(DBG_ERR, "%s: I/O error\n", tape->name); - - if (pc->c[0] == REQUEST_SENSE) { - printk(KERN_ERR "ide-tape: I/O error in request" - " sense command\n"); - return ide_do_reset(drive); - } - debug_log(DBG_ERR, "[cmd %x]: check condition\n", - pc->c[0]); - - /* Retry operation */ - return idetape_retry_pc(drive); - } - pc->error = 0; - if ((pc->flags & PC_FLAG_WAIT_FOR_DSC) && - (stat & SEEK_STAT) == 0) { - /* Media access command */ - tape->dsc_polling_start = jiffies; - tape->dsc_poll_freq = IDETAPE_DSC_MA_FAST; - tape->dsc_timeout = jiffies + IDETAPE_DSC_MA_TIMEOUT; - /* Allow ide.c to handle other requests */ - idetape_postpone_request(drive); - return ide_stopped; - } - if (tape->failed_pc == pc) - tape->failed_pc = NULL; - /* Command finished - Call the callback function */ - return pc->idetape_callback(drive); - } - - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { - pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; - printk(KERN_ERR "ide-tape: The tape wants to issue more " - "interrupts in DMA mode\n"); - printk(KERN_ERR "ide-tape: DMA disabled, reverting to PIO\n"); - ide_dma_off(drive); - return ide_do_reset(drive); - } - /* Get the number of bytes to transfer on this interrupt. */ - bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) | - hwif->INB(hwif->io_ports.lbam_addr); - - ireason = hwif->INB(hwif->io_ports.nsect_addr); - - if (ireason & CD) { - printk(KERN_ERR "ide-tape: CoD != 0 in %s\n", __func__); - return ide_do_reset(drive); - } - if (((ireason & IO) == IO) == !!(pc->flags & PC_FLAG_WRITING)) { - /* Hopefully, we will never get here */ - printk(KERN_ERR "ide-tape: We wanted to %s, ", - (ireason & IO) ? "Write" : "Read"); - printk(KERN_ERR "ide-tape: but the tape wants us to %s !\n", - (ireason & IO) ? "Read" : "Write"); - return ide_do_reset(drive); - } - if (!(pc->flags & PC_FLAG_WRITING)) { - /* Reading - Check that we have enough space */ - temp = pc->xferred + bcount; - if (temp > pc->req_xfer) { - if (temp > pc->buf_size) { - printk(KERN_ERR "ide-tape: The tape wants to " - "send us more data than expected " - "- discarding data\n"); - ide_pad_transfer(drive, 0, bcount); - ide_set_handler(drive, &idetape_pc_intr, - IDETAPE_WAIT_CMD, NULL); - return ide_started; - } - debug_log(DBG_SENSE, "The tape wants to send us more " - "data than expected - allowing transfer\n"); - } - iobuf = &idetape_input_buffers; - xferfunc = hwif->input_data; - } else { - iobuf = &idetape_output_buffers; - xferfunc = hwif->output_data; - } - - if (pc->bh) - iobuf(drive, pc, bcount); - else - xferfunc(drive, NULL, pc->cur_pos, bcount); - - /* Update the current position */ - pc->xferred += bcount; - pc->cur_pos += bcount; - - debug_log(DBG_SENSE, "[cmd %x] transferred %d bytes on that intr.\n", - pc->c[0], bcount); - /* And set the interrupt handler again */ - ide_set_handler(drive, &idetape_pc_intr, IDETAPE_WAIT_CMD, NULL); - return ide_started; + return ide_pc_intr(drive, tape->pc, idetape_pc_intr, IDETAPE_WAIT_CMD, + NULL, idetape_update_buffers, idetape_retry_pc, + ide_tape_handle_dsc, ide_tape_io_buffers); } /* @@ -941,56 +843,16 @@ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive) */ static ide_startstop_t idetape_transfer_pc(ide_drive_t *drive) { - ide_hwif_t *hwif = drive->hwif; idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc *pc = tape->pc; - int retries = 100; - ide_startstop_t startstop; - u8 ireason; - - if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) { - printk(KERN_ERR "ide-tape: Strange, packet command initiated " - "yet DRQ isn't asserted\n"); - return startstop; - } - ireason = hwif->INB(hwif->io_ports.nsect_addr); - while (retries-- && ((ireason & CD) == 0 || (ireason & IO))) { - printk(KERN_ERR "ide-tape: (IO,CoD != (0,1) while issuing " - "a packet command, retrying\n"); - udelay(100); - ireason = hwif->INB(hwif->io_ports.nsect_addr); - if (retries == 0) { - printk(KERN_ERR "ide-tape: (IO,CoD != (0,1) while " - "issuing a packet command, ignoring\n"); - ireason |= CD; - ireason &= ~IO; - } - } - if ((ireason & CD) == 0 || (ireason & IO)) { - printk(KERN_ERR "ide-tape: (IO,CoD) != (0,1) while issuing " - "a packet command\n"); - return ide_do_reset(drive); - } - /* Set the interrupt routine */ - ide_set_handler(drive, &idetape_pc_intr, IDETAPE_WAIT_CMD, NULL); -#ifdef CONFIG_BLK_DEV_IDEDMA - /* Begin DMA, if necessary */ - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) - hwif->dma_ops->dma_start(drive); -#endif - /* Send the actual packet */ - hwif->output_data(drive, NULL, pc->c, 12); - return ide_started; + return ide_transfer_pc(drive, tape->pc, idetape_pc_intr, + IDETAPE_WAIT_CMD, NULL); } static ide_startstop_t idetape_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc) { - ide_hwif_t *hwif = drive->hwif; idetape_tape_t *tape = drive->driver_data; - int dma_ok = 0; - u16 bcount; if (tape->pc->c[0] == REQUEST_SENSE && pc->c[0] == REQUEST_SENSE) { @@ -1025,50 +887,15 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive, pc->error = IDETAPE_ERROR_GENERAL; } tape->failed_pc = NULL; - return pc->idetape_callback(drive); + pc->callback(drive); + return ide_stopped; } debug_log(DBG_SENSE, "Retry #%d, cmd = %02X\n", pc->retries, pc->c[0]); pc->retries++; - /* We haven't transferred any data yet */ - pc->xferred = 0; - pc->cur_pos = pc->buf; - /* Request to transfer the entire buffer at once */ - bcount = pc->req_xfer; - if (pc->flags & PC_FLAG_DMA_ERROR) { - pc->flags &= ~PC_FLAG_DMA_ERROR; - printk(KERN_WARNING "ide-tape: DMA disabled, " - "reverting to PIO\n"); - ide_dma_off(drive); - } - if ((pc->flags & PC_FLAG_DMA_RECOMMENDED) && drive->using_dma) - dma_ok = !hwif->dma_ops->dma_setup(drive); - - ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK | - IDE_TFLAG_OUT_DEVICE, bcount, dma_ok); - - if (dma_ok) - /* Will begin DMA later */ - pc->flags |= PC_FLAG_DMA_IN_PROGRESS; - if (test_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags)) { - ide_execute_command(drive, WIN_PACKETCMD, &idetape_transfer_pc, - IDETAPE_WAIT_CMD, NULL); - return ide_started; - } else { - ide_execute_pkt_cmd(drive); - return idetape_transfer_pc(drive); - } -} - -static ide_startstop_t idetape_pc_callback(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - - debug_log(DBG_PROCS, "Enter %s\n", __func__); - - idetape_end_request(drive, tape->pc->error ? 0 : 1, 0); - return ide_stopped; + return ide_issue_pc(drive, pc, idetape_transfer_pc, + IDETAPE_WAIT_CMD, NULL); } /* A mode sense command is used to "sense" tape parameters. */ @@ -1096,7 +923,6 @@ static void idetape_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code) pc->req_xfer = 24; else pc->req_xfer = 50; - pc->idetape_callback = &idetape_pc_callback; } static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive) @@ -1114,80 +940,41 @@ static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive) printk(KERN_ERR "ide-tape: %s: I/O error, ", tape->name); /* Retry operation */ - return idetape_retry_pc(drive); + idetape_retry_pc(drive); + return ide_stopped; } pc->error = 0; - if (tape->failed_pc == pc) - tape->failed_pc = NULL; } else { pc->error = IDETAPE_ERROR_GENERAL; tape->failed_pc = NULL; } - return pc->idetape_callback(drive); -} - -static ide_startstop_t idetape_rw_callback(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - struct request *rq = HWGROUP(drive)->rq; - int blocks = tape->pc->xferred / tape->blk_size; - - tape->avg_size += blocks * tape->blk_size; - - if (time_after_eq(jiffies, tape->avg_time + HZ)) { - tape->avg_speed = tape->avg_size * HZ / - (jiffies - tape->avg_time) / 1024; - tape->avg_size = 0; - tape->avg_time = jiffies; - } - debug_log(DBG_PROCS, "Enter %s\n", __func__); - - tape->first_frame += blocks; - rq->current_nr_sectors -= blocks; - - if (!tape->pc->error) - idetape_end_request(drive, 1, 0); - else - idetape_end_request(drive, tape->pc->error, 0); + pc->callback(drive); return ide_stopped; } -static void idetape_create_read_cmd(idetape_tape_t *tape, - struct ide_atapi_pc *pc, - unsigned int length, struct idetape_bh *bh) +static void ide_tape_create_rw_cmd(idetape_tape_t *tape, + struct ide_atapi_pc *pc, unsigned int length, + struct idetape_bh *bh, u8 opcode) { idetape_init_pc(pc); - pc->c[0] = READ_6; put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]); pc->c[1] = 1; - pc->idetape_callback = &idetape_rw_callback; pc->bh = bh; - atomic_set(&bh->b_count, 0); pc->buf = NULL; pc->buf_size = length * tape->blk_size; pc->req_xfer = pc->buf_size; if (pc->req_xfer == tape->buffer_size) - pc->flags |= PC_FLAG_DMA_RECOMMENDED; -} + pc->flags |= PC_FLAG_DMA_OK; -static void idetape_create_write_cmd(idetape_tape_t *tape, - struct ide_atapi_pc *pc, - unsigned int length, struct idetape_bh *bh) -{ - idetape_init_pc(pc); - pc->c[0] = WRITE_6; - put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]); - pc->c[1] = 1; - pc->idetape_callback = &idetape_rw_callback; - pc->flags |= PC_FLAG_WRITING; - pc->bh = bh; - pc->b_data = bh->b_data; - pc->b_count = atomic_read(&bh->b_count); - pc->buf = NULL; - pc->buf_size = length * tape->blk_size; - pc->req_xfer = pc->buf_size; - if (pc->req_xfer == tape->buffer_size) - pc->flags |= PC_FLAG_DMA_RECOMMENDED; + if (opcode == READ_6) { + pc->c[0] = READ_6; + atomic_set(&bh->b_count, 0); + } else if (opcode == WRITE_6) { + pc->c[0] = WRITE_6; + pc->flags |= PC_FLAG_WRITING; + pc->b_data = bh->b_data; + pc->b_count = atomic_read(&bh->b_count); + } } static ide_startstop_t idetape_do_request(ide_drive_t *drive, @@ -1211,8 +998,10 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, } /* Retry a failed packet command */ - if (tape->failed_pc && tape->pc->c[0] == REQUEST_SENSE) - return idetape_issue_pc(drive, tape->failed_pc); + if (tape->failed_pc && tape->pc->c[0] == REQUEST_SENSE) { + pc = tape->failed_pc; + goto out; + } if (postponed_rq != NULL) if (rq != postponed_rq) { @@ -1262,14 +1051,16 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, } if (rq->cmd[0] & REQ_IDETAPE_READ) { pc = idetape_next_pc_storage(drive); - idetape_create_read_cmd(tape, pc, rq->current_nr_sectors, - (struct idetape_bh *)rq->special); + ide_tape_create_rw_cmd(tape, pc, rq->current_nr_sectors, + (struct idetape_bh *)rq->special, + READ_6); goto out; } if (rq->cmd[0] & REQ_IDETAPE_WRITE) { pc = idetape_next_pc_storage(drive); - idetape_create_write_cmd(tape, pc, rq->current_nr_sectors, - (struct idetape_bh *)rq->special); + ide_tape_create_rw_cmd(tape, pc, rq->current_nr_sectors, + (struct idetape_bh *)rq->special, + WRITE_6); goto out; } if (rq->cmd[0] & REQ_IDETAPE_PC1) { @@ -1284,6 +1075,9 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, } BUG(); out: + if (test_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags)) + pc->flags |= PC_FLAG_DRQ_INTERRUPT; + return idetape_issue_pc(drive, pc); } @@ -1447,40 +1241,6 @@ static void idetape_init_merge_buffer(idetape_tape_t *tape) } } -static ide_startstop_t idetape_read_position_callback(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - u8 *readpos = tape->pc->buf; - - debug_log(DBG_PROCS, "Enter %s\n", __func__); - - if (!tape->pc->error) { - debug_log(DBG_SENSE, "BOP - %s\n", - (readpos[0] & 0x80) ? "Yes" : "No"); - debug_log(DBG_SENSE, "EOP - %s\n", - (readpos[0] & 0x40) ? "Yes" : "No"); - - if (readpos[0] & 0x4) { - printk(KERN_INFO "ide-tape: Block location is unknown" - "to the tape\n"); - clear_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags); - idetape_end_request(drive, 0, 0); - } else { - debug_log(DBG_SENSE, "Block Location - %u\n", - be32_to_cpu(*(u32 *)&readpos[4])); - - tape->partition = readpos[1]; - tape->first_frame = - be32_to_cpu(*(u32 *)&readpos[4]); - set_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags); - idetape_end_request(drive, 1, 0); - } - } else { - idetape_end_request(drive, 0, 0); - } - return ide_stopped; -} - /* * Write a filemark if write_filemark=1. Flush the device buffers without * writing a filemark otherwise. @@ -1492,14 +1252,12 @@ static void idetape_create_write_filemark_cmd(ide_drive_t *drive, pc->c[0] = WRITE_FILEMARKS; pc->c[4] = write_filemark; pc->flags |= PC_FLAG_WAIT_FOR_DSC; - pc->idetape_callback = &idetape_pc_callback; } static void idetape_create_test_unit_ready_cmd(struct ide_atapi_pc *pc) { idetape_init_pc(pc); pc->c[0] = TEST_UNIT_READY; - pc->idetape_callback = &idetape_pc_callback; } /* @@ -1518,12 +1276,16 @@ static void idetape_create_test_unit_ready_cmd(struct ide_atapi_pc *pc) static int idetape_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc) { struct ide_tape_obj *tape = drive->driver_data; - struct request rq; + struct request *rq; + int error; - idetape_init_rq(&rq, REQ_IDETAPE_PC1); - rq.buffer = (char *) pc; - rq.rq_disk = tape->disk; - return ide_do_drive_cmd(drive, &rq, ide_wait); + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_SPECIAL; + rq->cmd[0] = REQ_IDETAPE_PC1; + rq->buffer = (char *)pc; + error = blk_execute_rq(drive->queue, tape->disk, rq, 0); + blk_put_request(rq); + return error; } static void idetape_create_load_unload_cmd(ide_drive_t *drive, @@ -1533,7 +1295,6 @@ static void idetape_create_load_unload_cmd(ide_drive_t *drive, pc->c[0] = START_STOP; pc->c[4] = cmd; pc->flags |= PC_FLAG_WAIT_FOR_DSC; - pc->idetape_callback = &idetape_pc_callback; } static int idetape_wait_ready(ide_drive_t *drive, unsigned long timeout) @@ -1585,7 +1346,6 @@ static void idetape_create_read_position_cmd(struct ide_atapi_pc *pc) idetape_init_pc(pc); pc->c[0] = READ_POSITION; pc->req_xfer = 20; - pc->idetape_callback = &idetape_read_position_callback; } static int idetape_read_position(ide_drive_t *drive) @@ -1613,7 +1373,6 @@ static void idetape_create_locate_cmd(ide_drive_t *drive, put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[3]); pc->c[8] = partition; pc->flags |= PC_FLAG_WAIT_FOR_DSC; - pc->idetape_callback = &idetape_pc_callback; } static int idetape_create_prevent_cmd(ide_drive_t *drive, @@ -1628,7 +1387,6 @@ static int idetape_create_prevent_cmd(ide_drive_t *drive, idetape_init_pc(pc); pc->c[0] = ALLOW_MEDIUM_REMOVAL; pc->c[4] = prevent; - pc->idetape_callback = &idetape_pc_callback; return 1; } @@ -1700,26 +1458,33 @@ static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int blocks, struct idetape_bh *bh) { idetape_tape_t *tape = drive->driver_data; - struct request rq; + struct request *rq; + int ret, errors; debug_log(DBG_SENSE, "%s: cmd=%d\n", __func__, cmd); - idetape_init_rq(&rq, cmd); - rq.rq_disk = tape->disk; - rq.special = (void *)bh; - rq.sector = tape->first_frame; - rq.nr_sectors = blocks; - rq.current_nr_sectors = blocks; - (void) ide_do_drive_cmd(drive, &rq, ide_wait); + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_SPECIAL; + rq->cmd[0] = cmd; + rq->rq_disk = tape->disk; + rq->special = (void *)bh; + rq->sector = tape->first_frame; + rq->nr_sectors = blocks; + rq->current_nr_sectors = blocks; + blk_execute_rq(drive->queue, tape->disk, rq, 0); + + errors = rq->errors; + ret = tape->blk_size * (blocks - rq->current_nr_sectors); + blk_put_request(rq); if ((cmd & (REQ_IDETAPE_READ | REQ_IDETAPE_WRITE)) == 0) return 0; if (tape->merge_bh) idetape_init_merge_buffer(tape); - if (rq.errors == IDETAPE_ERROR_GENERAL) + if (errors == IDETAPE_ERROR_GENERAL) return -EIO; - return (tape->blk_size * (blocks-rq.current_nr_sectors)); + return ret; } static void idetape_create_inquiry_cmd(struct ide_atapi_pc *pc) @@ -1728,7 +1493,6 @@ static void idetape_create_inquiry_cmd(struct ide_atapi_pc *pc) pc->c[0] = INQUIRY; pc->c[4] = 254; pc->req_xfer = 254; - pc->idetape_callback = &idetape_pc_callback; } static void idetape_create_rewind_cmd(ide_drive_t *drive, @@ -1737,7 +1501,6 @@ static void idetape_create_rewind_cmd(ide_drive_t *drive, idetape_init_pc(pc); pc->c[0] = REZERO_UNIT; pc->flags |= PC_FLAG_WAIT_FOR_DSC; - pc->idetape_callback = &idetape_pc_callback; } static void idetape_create_erase_cmd(struct ide_atapi_pc *pc) @@ -1746,7 +1509,6 @@ static void idetape_create_erase_cmd(struct ide_atapi_pc *pc) pc->c[0] = ERASE; pc->c[1] = 1; pc->flags |= PC_FLAG_WAIT_FOR_DSC; - pc->idetape_callback = &idetape_pc_callback; } static void idetape_create_space_cmd(struct ide_atapi_pc *pc, int count, u8 cmd) @@ -1756,7 +1518,6 @@ static void idetape_create_space_cmd(struct ide_atapi_pc *pc, int count, u8 cmd) put_unaligned(cpu_to_be32(count), (unsigned int *) &pc->c[1]); pc->c[1] = cmd; pc->flags |= PC_FLAG_WAIT_FOR_DSC; - pc->idetape_callback = &idetape_pc_callback; } /* Queue up a character device originated write request. */ @@ -2751,9 +2512,8 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) * Ensure that the number we got makes sense; limit it within * IDETAPE_DSC_RW_MIN and IDETAPE_DSC_RW_MAX. */ - tape->best_dsc_rw_freq = max_t(unsigned long, - min_t(unsigned long, t, IDETAPE_DSC_RW_MAX), - IDETAPE_DSC_RW_MIN); + tape->best_dsc_rw_freq = clamp_t(unsigned long, t, IDETAPE_DSC_RW_MIN, + IDETAPE_DSC_RW_MAX); printk(KERN_INFO "ide-tape: %s <-> %s: %dKBps, %d*%dkB buffer, " "%lums tDSC%s\n", drive->name, tape->name, *(u16 *)&tape->caps[14], @@ -2905,11 +2665,6 @@ static int ide_tape_probe(ide_drive_t *drive) " the driver\n", drive->name); goto failed; } - if (drive->scsi) { - printk(KERN_INFO "ide-tape: passing drive %s to ide-scsi" - " emulation.\n", drive->name); - goto failed; - } tape = kzalloc(sizeof(idetape_tape_t), GFP_KERNEL); if (tape == NULL) { printk(KERN_ERR "ide-tape: %s: Can't allocate a tape struct\n", diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index ab545ffa154..cf55a48a7dd 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -109,13 +109,15 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task) if ((task->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) { ide_tf_dump(drive->name, tf); + ide_set_irq(drive, 1); + SELECT_MASK(drive, 0); hwif->tf_load(drive, task); } switch (task->data_phase) { case TASKFILE_MULTI_OUT: case TASKFILE_OUT: - hwif->OUTBSYNC(drive, tf->command, hwif->io_ports.command_addr); + hwif->OUTBSYNC(hwif, tf->command, hwif->io_ports.command_addr); ndelay(400); /* FIXME */ return pre_task_out_intr(drive, task->rq); case TASKFILE_MULTI_IN: @@ -492,11 +494,12 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq) int ide_raw_taskfile(ide_drive_t *drive, ide_task_t *task, u8 *buf, u16 nsect) { - struct request rq; + struct request *rq; + int error; - blk_rq_init(NULL, &rq); - rq.cmd_type = REQ_TYPE_ATA_TASKFILE; - rq.buffer = buf; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_ATA_TASKFILE; + rq->buffer = buf; /* * (ks) We transfer currently only whole sectors. @@ -504,16 +507,19 @@ int ide_raw_taskfile(ide_drive_t *drive, ide_task_t *task, u8 *buf, u16 nsect) * if we would find a solution to transfer any size. * To support special commands like READ LONG. */ - rq.hard_nr_sectors = rq.nr_sectors = nsect; - rq.hard_cur_sectors = rq.current_nr_sectors = nsect; + rq->hard_nr_sectors = rq->nr_sectors = nsect; + rq->hard_cur_sectors = rq->current_nr_sectors = nsect; if (task->tf_flags & IDE_TFLAG_WRITE) - rq.cmd_flags |= REQ_RW; + rq->cmd_flags |= REQ_RW; - rq.special = task; - task->rq = &rq; + rq->special = task; + task->rq = rq; - return ide_do_drive_cmd(drive, &rq, ide_wait); + error = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_put_request(rq); + + return error; } EXPORT_SYMBOL(ide_raw_taskfile); @@ -739,12 +745,14 @@ int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) struct hd_driveid *id = drive->id; if (NULL == (void *) arg) { - struct request rq; + struct request *rq; - ide_init_drive_cmd(&rq); - rq.cmd_type = REQ_TYPE_ATA_TASKFILE; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_ATA_TASKFILE; + err = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_put_request(rq); - return ide_do_drive_cmd(drive, &rq, ide_wait); + return err; } if (copy_from_user(args, (void __user *)arg, 4)) diff --git a/drivers/ide/ide-timing.h b/drivers/ide/ide-timing.h index 3b12ffe7707..2e91c5870b4 100644 --- a/drivers/ide/ide-timing.h +++ b/drivers/ide/ide-timing.h @@ -95,7 +95,6 @@ static struct ide_timing ide_timing[] = { #define IDE_TIMING_UDMA 0x80 #define IDE_TIMING_ALL 0xff -#define FIT(v,vmin,vmax) max_t(short,min_t(short,v,vmax),vmin) #define ENOUGH(v,unit) (((v)-1)/(unit)+1) #define EZ(v,unit) ((v)?ENOUGH(v,unit):0) diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 300431d080a..2b8453510e0 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -86,13 +86,10 @@ static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR, IDE6_MAJOR, IDE7_MAJOR, IDE8_MAJOR, IDE9_MAJOR }; -static int idebus_parameter; /* holds the "idebus=" parameter */ -static int system_bus_speed; /* holds what we think is VESA/PCI bus speed */ - DEFINE_MUTEX(ide_cfg_mtx); - __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock); -int noautodma = 0; +__cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock); +EXPORT_SYMBOL(ide_lock); ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */ @@ -139,7 +136,6 @@ static void ide_port_init_devices_data(ide_hwif_t *hwif) drive->media = ide_disk; drive->select.all = (unit<<4)|0xa0; drive->hwif = hwif; - drive->ctl = 0x08; drive->ready_stat = READY_STAT; drive->bad_wstat = BAD_W_STAT; drive->special.b.recalibrate = 1; @@ -154,32 +150,9 @@ static void ide_port_init_devices_data(ide_hwif_t *hwif) } } -/* - * init_ide_data() sets reasonable default values into all fields - * of all instances of the hwifs and drives, but only on the first call. - * Subsequent calls have no effect (they don't wipe out anything). - * - * This routine is normally called at driver initialization time, - * but may also be called MUCH earlier during kernel "command-line" - * parameter processing. As such, we cannot depend on any other parts - * of the kernel (such as memory allocation) to be functioning yet. - * - * This is too bad, as otherwise we could dynamically allocate the - * ide_drive_t structs as needed, rather than always consuming memory - * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them. - * - * FIXME: We should stuff the setup data into __init and copy the - * relevant hwifs/allocate them properly during boot. - */ -#define MAGIC_COOKIE 0x12345678 static void __init init_ide_data (void) { unsigned int index; - static unsigned long magic_cookie = MAGIC_COOKIE; - - if (magic_cookie != MAGIC_COOKIE) - return; /* already initialized */ - magic_cookie = 0; /* Initialise all interface structures */ for (index = 0; index < MAX_HWIFS; ++index) { @@ -189,38 +162,6 @@ static void __init init_ide_data (void) } } -/** - * ide_system_bus_speed - guess bus speed - * - * ide_system_bus_speed() returns what we think is the system VESA/PCI - * bus speed (in MHz). This is used for calculating interface PIO timings. - * The default is 40 for known PCI systems, 50 otherwise. - * The "idebus=xx" parameter can be used to override this value. - * The actual value to be used is computed/displayed the first time - * through. Drivers should only use this as a last resort. - * - * Returns a guessed speed in MHz. - */ - -static int ide_system_bus_speed(void) -{ -#ifdef CONFIG_PCI - static struct pci_device_id pci_default[] = { - { PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) }, - { } - }; -#else -#define pci_default 0 -#endif /* CONFIG_PCI */ - - /* user supplied value */ - if (idebus_parameter) - return idebus_parameter; - - /* safe default value for PCI or VESA and PCI*/ - return pci_dev_present(pci_default) ? 33 : 50; -} - void ide_remove_port_from_hwgroup(ide_hwif_t *hwif) { ide_hwgroup_t *hwgroup = hwif->hwgroup; @@ -498,7 +439,7 @@ out: int set_pio_mode(ide_drive_t *drive, int arg) { - struct request rq; + struct request *rq; ide_hwif_t *hwif = drive->hwif; const struct ide_port_ops *port_ops = hwif->port_ops; @@ -512,12 +453,15 @@ int set_pio_mode(ide_drive_t *drive, int arg) if (drive->special.b.set_tune) return -EBUSY; - ide_init_drive_cmd(&rq); - rq.cmd_type = REQ_TYPE_ATA_TASKFILE; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_ATA_TASKFILE; drive->tune_req = (u8) arg; drive->special.b.set_tune = 1; - (void) ide_do_drive_cmd(drive, &rq, ide_wait); + + blk_execute_rq(drive->queue, NULL, rq, 0); + blk_put_request(rq); + return 0; } @@ -537,25 +481,11 @@ static int set_unmaskirq(ide_drive_t *drive, int arg) return 0; } -/** - * system_bus_clock - clock guess - * - * External version of the bus clock guess used by very old IDE drivers - * for things like VLB timings. Should not be used. - */ - -int system_bus_clock (void) -{ - return system_bus_speed; -} - -EXPORT_SYMBOL(system_bus_clock); - static int generic_ide_suspend(struct device *dev, pm_message_t mesg) { ide_drive_t *drive = dev->driver_data; ide_hwif_t *hwif = HWIF(drive); - struct request rq; + struct request *rq; struct request_pm_state rqpm; ide_task_t args; int ret; @@ -564,18 +494,19 @@ static int generic_ide_suspend(struct device *dev, pm_message_t mesg) if (!(drive->dn % 2)) ide_acpi_get_timing(hwif); - blk_rq_init(NULL, &rq); memset(&rqpm, 0, sizeof(rqpm)); memset(&args, 0, sizeof(args)); - rq.cmd_type = REQ_TYPE_PM_SUSPEND; - rq.special = &args; - rq.data = &rqpm; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_PM_SUSPEND; + rq->special = &args; + rq->data = &rqpm; rqpm.pm_step = ide_pm_state_start_suspend; if (mesg.event == PM_EVENT_PRETHAW) mesg.event = PM_EVENT_FREEZE; rqpm.pm_state = mesg.event; - ret = ide_do_drive_cmd(drive, &rq, ide_wait); + ret = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_put_request(rq); /* only call ACPI _PS3 after both drivers are suspended */ if (!ret && (((drive->dn % 2) && hwif->drives[0].present && hwif->drives[1].present) @@ -589,7 +520,7 @@ static int generic_ide_resume(struct device *dev) { ide_drive_t *drive = dev->driver_data; ide_hwif_t *hwif = HWIF(drive); - struct request rq; + struct request *rq; struct request_pm_state rqpm; ide_task_t args; int err; @@ -602,16 +533,18 @@ static int generic_ide_resume(struct device *dev) ide_acpi_exec_tfs(drive); - blk_rq_init(NULL, &rq); memset(&rqpm, 0, sizeof(rqpm)); memset(&args, 0, sizeof(args)); - rq.cmd_type = REQ_TYPE_PM_RESUME; - rq.special = &args; - rq.data = &rqpm; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_PM_RESUME; + rq->cmd_flags |= REQ_PREEMPT; + rq->special = &args; + rq->data = &rqpm; rqpm.pm_step = ide_pm_state_start_resume; rqpm.pm_state = PM_EVENT_ON; - err = ide_do_drive_cmd(drive, &rq, ide_head_wait); + err = blk_execute_rq(drive->queue, NULL, rq, 1); + blk_put_request(rq); if (err == 0 && dev->driver) { ide_driver_t *drv = to_ide_driver(dev->driver); @@ -764,212 +697,6 @@ set_val: EXPORT_SYMBOL(generic_ide_ioctl); -/* - * stridx() returns the offset of c within s, - * or -1 if c is '\0' or not found within s. - */ -static int __init stridx (const char *s, char c) -{ - char *i = strchr(s, c); - return (i && c) ? i - s : -1; -} - -/* - * match_parm() does parsing for ide_setup(): - * - * 1. the first char of s must be '='. - * 2. if the remainder matches one of the supplied keywords, - * the index (1 based) of the keyword is negated and returned. - * 3. if the remainder is a series of no more than max_vals numbers - * separated by commas, the numbers are saved in vals[] and a - * count of how many were saved is returned. Base10 is assumed, - * and base16 is allowed when prefixed with "0x". - * 4. otherwise, zero is returned. - */ -static int __init match_parm (char *s, const char *keywords[], int vals[], int max_vals) -{ - static const char *decimal = "0123456789"; - static const char *hex = "0123456789abcdef"; - int i, n; - - if (*s++ == '=') { - /* - * Try matching against the supplied keywords, - * and return -(index+1) if we match one - */ - if (keywords != NULL) { - for (i = 0; *keywords != NULL; ++i) { - if (!strcmp(s, *keywords++)) - return -(i+1); - } - } - /* - * Look for a series of no more than "max_vals" - * numeric values separated by commas, in base10, - * or base16 when prefixed with "0x". - * Return a count of how many were found. - */ - for (n = 0; (i = stridx(decimal, *s)) >= 0;) { - vals[n] = i; - while ((i = stridx(decimal, *++s)) >= 0) - vals[n] = (vals[n] * 10) + i; - if (*s == 'x' && !vals[n]) { - while ((i = stridx(hex, *++s)) >= 0) - vals[n] = (vals[n] * 0x10) + i; - } - if (++n == max_vals) - break; - if (*s == ',' || *s == ';') - ++s; - } - if (!*s) - return n; - } - return 0; /* zero = nothing matched */ -} - -/* - * ide_setup() gets called VERY EARLY during initialization, - * to handle kernel "command line" strings beginning with "hdx=" or "ide". - * - * Remember to update Documentation/ide/ide.txt if you change something here. - */ -static int __init ide_setup(char *s) -{ - ide_hwif_t *hwif; - ide_drive_t *drive; - unsigned int hw, unit; - int vals[3]; - const char max_drive = 'a' + ((MAX_HWIFS * MAX_DRIVES) - 1); - - if (strncmp(s,"hd",2) == 0 && s[2] == '=') /* hd= is for hd.c */ - return 0; /* driver and not us */ - - if (strncmp(s,"ide",3) && strncmp(s,"idebus",6) && strncmp(s,"hd",2)) - return 0; - - printk(KERN_INFO "ide_setup: %s", s); - init_ide_data (); - -#ifdef CONFIG_BLK_DEV_IDEDOUBLER - if (!strcmp(s, "ide=doubler")) { - extern int ide_doubler; - - printk(" : Enabled support for IDE doublers\n"); - ide_doubler = 1; - goto obsolete_option; - } -#endif /* CONFIG_BLK_DEV_IDEDOUBLER */ - - if (!strcmp(s, "ide=nodma")) { - printk(" : Prevented DMA\n"); - noautodma = 1; - goto obsolete_option; - } - -#ifdef CONFIG_BLK_DEV_IDEACPI - if (!strcmp(s, "ide=noacpi")) { - //printk(" : Disable IDE ACPI support.\n"); - ide_noacpi = 1; - goto obsolete_option; - } - if (!strcmp(s, "ide=acpigtf")) { - //printk(" : Enable IDE ACPI _GTF support.\n"); - ide_acpigtf = 1; - goto obsolete_option; - } - if (!strcmp(s, "ide=acpionboot")) { - //printk(" : Call IDE ACPI methods on boot.\n"); - ide_acpionboot = 1; - goto obsolete_option; - } -#endif /* CONFIG_BLK_DEV_IDEACPI */ - - /* - * Look for drive options: "hdx=" - */ - if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) { - const char *hd_words[] = { - "none", "noprobe", "nowerr", "cdrom", "nodma", - "-6", "-7", "-8", "-9", "-10", - "noflush", "remap", "remap63", "scsi", NULL }; - unit = s[2] - 'a'; - hw = unit / MAX_DRIVES; - unit = unit % MAX_DRIVES; - hwif = &ide_hwifs[hw]; - drive = &hwif->drives[unit]; - if (strncmp(s + 4, "ide-", 4) == 0) { - strlcpy(drive->driver_req, s + 4, sizeof(drive->driver_req)); - goto obsolete_option; - } - switch (match_parm(&s[3], hd_words, vals, 3)) { - case -1: /* "none" */ - case -2: /* "noprobe" */ - drive->noprobe = 1; - goto obsolete_option; - case -3: /* "nowerr" */ - drive->bad_wstat = BAD_R_STAT; - goto obsolete_option; - case -4: /* "cdrom" */ - drive->present = 1; - drive->media = ide_cdrom; - /* an ATAPI device ignores DRDY */ - drive->ready_stat = 0; - goto obsolete_option; - case -5: /* nodma */ - drive->nodma = 1; - goto obsolete_option; - case -11: /* noflush */ - drive->noflush = 1; - goto obsolete_option; - case -12: /* "remap" */ - drive->remap_0_to_1 = 1; - goto obsolete_option; - case -13: /* "remap63" */ - drive->sect0 = 63; - goto obsolete_option; - case -14: /* "scsi" */ - drive->scsi = 1; - goto obsolete_option; - case 3: /* cyl,head,sect */ - drive->media = ide_disk; - drive->ready_stat = READY_STAT; - drive->cyl = drive->bios_cyl = vals[0]; - drive->head = drive->bios_head = vals[1]; - drive->sect = drive->bios_sect = vals[2]; - drive->present = 1; - drive->forced_geom = 1; - goto obsolete_option; - default: - goto bad_option; - } - } - - if (s[0] != 'i' || s[1] != 'd' || s[2] != 'e') - goto bad_option; - /* - * Look for bus speed option: "idebus=" - */ - if (s[3] == 'b' && s[4] == 'u' && s[5] == 's') { - if (match_parm(&s[6], NULL, vals, 1) != 1) - goto bad_option; - if (vals[0] >= 20 && vals[0] <= 66) { - idebus_parameter = vals[0]; - } else - printk(" -- BAD BUS SPEED! Expected value from 20 to 66"); - goto obsolete_option; - } - -bad_option: - printk(" -- BAD OPTION\n"); - return 1; -obsolete_option: - printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n"); - return 1; -} - -EXPORT_SYMBOL(ide_lock); - static int ide_bus_match(struct device *dev, struct device_driver *drv) { return 1; @@ -1281,11 +1008,6 @@ static int __init ide_init(void) int ret; printk(KERN_INFO "Uniform Multi-Platform E-IDE driver\n"); - system_bus_speed = ide_system_bus_speed(); - - printk(KERN_INFO "ide: Assuming %dMHz system bus speed " - "for PIO modes%s\n", system_bus_speed, - idebus_parameter ? "" : "; override with idebus=xx"); ret = bus_register(&ide_bus_type); if (ret < 0) { @@ -1311,32 +1033,7 @@ out_port_class: return ret; } -#ifdef MODULE -static char *options = NULL; -module_param(options, charp, 0); -MODULE_LICENSE("GPL"); - -static void __init parse_options (char *line) -{ - char *next = line; - - if (line == NULL || !*line) - return; - while ((line = next) != NULL) { - if ((next = strchr(line,' ')) != NULL) - *next++ = 0; - if (!ide_setup(line)) - printk (KERN_INFO "Unknown option '%s'\n", line); - } -} - -int __init init_module (void) -{ - parse_options(options); - return ide_init(); -} - -void __exit cleanup_module (void) +static void __exit ide_exit(void) { proc_ide_destroy(); @@ -1345,10 +1042,7 @@ void __exit cleanup_module (void) bus_unregister(&ide_bus_type); } -#else /* !MODULE */ - -__setup("", ide_setup); - module_init(ide_init); +module_exit(ide_exit); -#endif /* MODULE */ +MODULE_LICENSE("GPL"); diff --git a/drivers/ide/legacy/ali14xx.c b/drivers/ide/legacy/ali14xx.c index 90c65cf9744..052125fafcf 100644 --- a/drivers/ide/legacy/ali14xx.c +++ b/drivers/ide/legacy/ali14xx.c @@ -116,7 +116,7 @@ static void ali14xx_set_pio_mode(ide_drive_t *drive, const u8 pio) int time1, time2; u8 param1, param2, param3, param4; unsigned long flags; - int bus_speed = ide_vlb_clk ? ide_vlb_clk : system_bus_clock(); + int bus_speed = ide_vlb_clk ? ide_vlb_clk : 50; /* calculate timing, according to PIO mode */ time1 = ide_pio_cycle_time(drive, pio); diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c index fed7d812761..b78941680c3 100644 --- a/drivers/ide/legacy/gayle.c +++ b/drivers/ide/legacy/gayle.c @@ -64,9 +64,7 @@ #define GAYLE_HAS_CONTROL_REG (!ide_doubler) #define GAYLE_IDEREG_SIZE (ide_doubler ? 0x1000 : 0x2000) -int ide_doubler = 0; /* support IDE doublers? */ -EXPORT_SYMBOL_GPL(ide_doubler); - +static int ide_doubler; module_param_named(doubler, ide_doubler, bool, 0); MODULE_PARM_DESC(doubler, "enable support for IDE doublers"); #endif /* CONFIG_BLK_DEV_IDEDOUBLER */ diff --git a/drivers/ide/legacy/ht6560b.c b/drivers/ide/legacy/ht6560b.c index 4fe516df9f7..dd6dfb32e85 100644 --- a/drivers/ide/legacy/ht6560b.c +++ b/drivers/ide/legacy/ht6560b.c @@ -212,7 +212,7 @@ static u8 ht_pio2timings(ide_drive_t *drive, const u8 pio) { int active_time, recovery_time; int active_cycles, recovery_cycles; - int bus_speed = ide_vlb_clk ? ide_vlb_clk : system_bus_clock(); + int bus_speed = ide_vlb_clk ? ide_vlb_clk : 50; if (pio) { unsigned int cycle_time; diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c index 6424af15432..51dba82f881 100644 --- a/drivers/ide/legacy/qd65xx.c +++ b/drivers/ide/legacy/qd65xx.c @@ -110,7 +110,7 @@ static void qd65xx_select(ide_drive_t *drive) static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery_time) { - int clk = ide_vlb_clk ? ide_vlb_clk : system_bus_clock(); + int clk = ide_vlb_clk ? ide_vlb_clk : 50; u8 act_cyc, rec_cyc; if (clk <= 33) { @@ -132,7 +132,7 @@ static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery static u8 qd6580_compute_timing (int active_time, int recovery_time) { - int clk = ide_vlb_clk ? ide_vlb_clk : system_bus_clock(); + int clk = ide_vlb_clk ? ide_vlb_clk : 50; u8 act_cyc, rec_cyc; act_cyc = 17 - IDE_IN(active_time * clk / 1000 + 1, 2, 17); diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c index 7f46c224b7c..ae7a4329a58 100644 --- a/drivers/ide/pci/aec62xx.c +++ b/drivers/ide/pci/aec62xx.c @@ -140,7 +140,7 @@ static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio) static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name) { - int bus_speed = ide_pci_clk ? ide_pci_clk : system_bus_clock(); + int bus_speed = ide_pci_clk ? ide_pci_clk : 33; if (bus_speed <= 33) pci_set_drvdata(dev, (void *) aec6xxx_33_base); diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c index f2129d5e07f..f2de00adf14 100644 --- a/drivers/ide/pci/alim15x3.c +++ b/drivers/ide/pci/alim15x3.c @@ -72,7 +72,7 @@ static void ali_set_pio_mode(ide_drive_t *drive, const u8 pio) int s_time, a_time, c_time; u8 s_clc, a_clc, r_clc; unsigned long flags; - int bus_speed = ide_pci_clk ? ide_pci_clk : system_bus_clock(); + int bus_speed = ide_pci_clk ? ide_pci_clk : 33; int port = hwif->channel ? 0x5c : 0x58; int portFIFO = hwif->channel ? 0x55 : 0x54; u8 cd_dma_fifo = 0; diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c index efcf54338be..ad222206a42 100644 --- a/drivers/ide/pci/amd74xx.c +++ b/drivers/ide/pci/amd74xx.c @@ -53,20 +53,20 @@ static void amd_set_speed(struct pci_dev *dev, u8 dn, u8 udma_mask, u8 t = 0, offset = amd_offset(dev); pci_read_config_byte(dev, AMD_ADDRESS_SETUP + offset, &t); - t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(timing->setup, 1, 4) - 1) << ((3 - dn) << 1)); + t = (t & ~(3 << ((3 - dn) << 1))) | ((clamp_val(timing->setup, 1, 4) - 1) << ((3 - dn) << 1)); pci_write_config_byte(dev, AMD_ADDRESS_SETUP + offset, t); pci_write_config_byte(dev, AMD_8BIT_TIMING + offset + (1 - (dn >> 1)), - ((FIT(timing->act8b, 1, 16) - 1) << 4) | (FIT(timing->rec8b, 1, 16) - 1)); + ((clamp_val(timing->act8b, 1, 16) - 1) << 4) | (clamp_val(timing->rec8b, 1, 16) - 1)); pci_write_config_byte(dev, AMD_DRIVE_TIMING + offset + (3 - dn), - ((FIT(timing->active, 1, 16) - 1) << 4) | (FIT(timing->recover, 1, 16) - 1)); + ((clamp_val(timing->active, 1, 16) - 1) << 4) | (clamp_val(timing->recover, 1, 16) - 1)); switch (udma_mask) { - case ATA_UDMA2: t = timing->udma ? (0xc0 | (FIT(timing->udma, 2, 5) - 2)) : 0x03; break; - case ATA_UDMA4: t = timing->udma ? (0xc0 | amd_cyc2udma[FIT(timing->udma, 2, 10)]) : 0x03; break; - case ATA_UDMA5: t = timing->udma ? (0xc0 | amd_cyc2udma[FIT(timing->udma, 1, 10)]) : 0x03; break; - case ATA_UDMA6: t = timing->udma ? (0xc0 | amd_cyc2udma[FIT(timing->udma, 1, 15)]) : 0x03; break; + case ATA_UDMA2: t = timing->udma ? (0xc0 | (clamp_val(timing->udma, 2, 5) - 2)) : 0x03; break; + case ATA_UDMA4: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 2, 10)]) : 0x03; break; + case ATA_UDMA5: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 1, 10)]) : 0x03; break; + case ATA_UDMA6: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 1, 15)]) : 0x03; break; default: return; } @@ -179,7 +179,7 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, * Determine the system bus clock. */ - amd_clock = (ide_pci_clk ? ide_pci_clk : system_bus_clock()) * 1000; + amd_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; switch (amd_clock) { case 33000: amd_clock = 33333; break; diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c index b38a1980dcd..cd1ba14984a 100644 --- a/drivers/ide/pci/cmd640.c +++ b/drivers/ide/pci/cmd640.c @@ -525,12 +525,10 @@ static void cmd640_set_mode(ide_drive_t *drive, unsigned int index, u8 setup_count, active_count, recovery_count, recovery_count2, cycle_count; int bus_speed; - if (cmd640_vlb && ide_vlb_clk) - bus_speed = ide_vlb_clk; - else if (!cmd640_vlb && ide_pci_clk) - bus_speed = ide_pci_clk; + if (cmd640_vlb) + bus_speed = ide_vlb_clk ? ide_vlb_clk : 50; else - bus_speed = system_bus_clock(); + bus_speed = ide_pci_clk ? ide_pci_clk : 33; if (pio_mode > 5) pio_mode = 5; diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c index 08674711d08..ca4774aa27e 100644 --- a/drivers/ide/pci/cmd64x.c +++ b/drivers/ide/pci/cmd64x.c @@ -69,7 +69,7 @@ static u8 quantize_timing(int timing, int quant) static void program_cycle_times (ide_drive_t *drive, int cycle_time, int active_time) { struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - int clock_time = 1000 / (ide_pci_clk ? ide_pci_clk : system_bus_clock()); + int clock_time = 1000 / (ide_pci_clk ? ide_pci_clk : 33); u8 cycle_count, active_count, recovery_count, drwtim; static const u8 recovery_values[] = {15, 15, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0}; @@ -128,7 +128,7 @@ static void cmd64x_tune_pio(ide_drive_t *drive, const u8 pio) ide_pio_timings[pio].active_time); setup_count = quantize_timing(ide_pio_timings[pio].setup_time, - 1000 / (ide_pci_clk ? ide_pci_clk : system_bus_clock())); + 1000 / (ide_pci_clk ? ide_pci_clk : 33)); /* * The primary channel has individual address setup timing registers diff --git a/drivers/ide/pci/cy82c693.c b/drivers/ide/pci/cy82c693.c index 77cc22c2ad4..8c534afcb6c 100644 --- a/drivers/ide/pci/cy82c693.c +++ b/drivers/ide/pci/cy82c693.c @@ -134,7 +134,7 @@ static int calc_clk(int time, int bus_speed) static void compute_clocks(u8 pio, pio_clocks_t *p_pclk) { int clk1, clk2; - int bus_speed = ide_pci_clk ? ide_pci_clk : system_bus_clock(); + int bus_speed = ide_pci_clk ? ide_pci_clk : 33; /* we don't check against CY82C693's min and max speed, * so you can play with the idebus=xx parameter diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c index c929dadaaaf..397c6cbe953 100644 --- a/drivers/ide/pci/hpt366.c +++ b/drivers/ide/pci/hpt366.c @@ -759,8 +759,7 @@ static void hpt3xx_maskproc(ide_drive_t *drive, int mask) enable_irq (hwif->irq); } } else - outb(mask ? (drive->ctl | 2) : (drive->ctl & ~2), - hwif->io_ports.ctl_addr); + outb(ATA_DEVCTL_OBS | (mask ? 2 : 0), hwif->io_ports.ctl_addr); } /* diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index a7a41bb8277..45ba71a7182 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -76,7 +76,7 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task) } /* be sure we're looking at the low order bits */ - outb(drive->ctl & ~0x80, io_ports->ctl_addr); + outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = inb(io_ports->nsect_addr); @@ -90,7 +90,7 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task) tf->device = superio_ide_inb(io_ports->device_addr); if (task->tf_flags & IDE_TFLAG_LBA48) { - outb(drive->ctl | 0x80, io_ports->ctl_addr); + outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) tf->hob_feature = inb(io_ports->feature_addr); diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index 910fb00deb7..1584ebb6a18 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -148,11 +148,8 @@ static void scc_ide_outb(u8 addr, unsigned long port) out_be32((void*)port, addr); } -static void -scc_ide_outbsync(ide_drive_t * drive, u8 addr, unsigned long port) +static void scc_ide_outbsync(ide_hwif_t *hwif, u8 addr, unsigned long port) { - ide_hwif_t *hwif = HWIF(drive); - out_be32((void*)port, addr); eieio(); in_be32((void*)(hwif->dma_base + 0x01c)); @@ -662,8 +659,6 @@ static void scc_tf_load(ide_drive_t *drive, ide_task_t *task) if (task->tf_flags & IDE_TFLAG_FLAGGED) HIHI = 0xFF; - ide_set_irq(drive, 1); - if (task->tf_flags & IDE_TFLAG_OUT_DATA) out_be32((void *)io_ports->data_addr, (tf->hob_data << 8) | tf->data); @@ -708,7 +703,7 @@ static void scc_tf_read(ide_drive_t *drive, ide_task_t *task) } /* be sure we're looking at the low order bits */ - scc_ide_outb(drive->ctl & ~0x80, io_ports->ctl_addr); + scc_ide_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = scc_ide_inb(io_ports->nsect_addr); @@ -722,7 +717,7 @@ static void scc_tf_read(ide_drive_t *drive, ide_task_t *task) tf->device = scc_ide_inb(io_ports->device_addr); if (task->tf_flags & IDE_TFLAG_LBA48) { - scc_ide_outb(drive->ctl | 0x80, io_ports->ctl_addr); + scc_ide_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) tf->hob_feature = scc_ide_inb(io_ports->feature_addr); @@ -795,7 +790,6 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif) hwif->dma_base = dma_base; hwif->config_data = ports->ctl; - hwif->mmio = 1; } /** diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index 16a0bce17d6..24513e3dcd6 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -111,7 +111,7 @@ sgiioc4_init_hwif_ports(hw_regs_t * hw, unsigned long data_port, static void sgiioc4_maskproc(ide_drive_t * drive, int mask) { - writeb(mask ? (drive->ctl | 2) : (drive->ctl & ~2), + writeb(ATA_DEVCTL_OBS | (mask ? 2 : 0), (void __iomem *)drive->hwif->io_ports.ctl_addr); } @@ -369,8 +369,7 @@ ide_dma_sgiioc4(ide_hwif_t *hwif, const struct ide_port_info *d) hwif->sg_max_nents = IOC4_PRD_ENTRIES; pad = pci_alloc_consistent(dev, IOC4_IDE_CACHELINE_SIZE, - (dma_addr_t *) &(hwif->dma_status)); - + (dma_addr_t *)&hwif->extra_base); if (pad) { ide_set_hwifdata(hwif, pad); return 0; @@ -439,7 +438,7 @@ sgiioc4_configure_for_dma(int dma_direction, ide_drive_t * drive) /* Address of the Ending DMA */ memset(ide_get_hwifdata(hwif), 0, IOC4_IDE_CACHELINE_SIZE); - ending_dma_addr = cpu_to_le32(hwif->dma_status); + ending_dma_addr = cpu_to_le32(hwif->extra_base); writel(ending_dma_addr, (void __iomem *)(dma_base + IOC4_DMA_END_ADDR * 4)); writel(dma_direction, (void __iomem *)ioc4_dma_addr); diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c index 0006b9e5856..b75e9bb390a 100644 --- a/drivers/ide/pci/siimage.c +++ b/drivers/ide/pci/siimage.c @@ -94,7 +94,7 @@ static unsigned long siimage_selreg(ide_hwif_t *hwif, int r) unsigned long base = (unsigned long)hwif->hwif_data; base += 0xA0 + r; - if (hwif->mmio) + if (hwif->host_flags & IDE_HFLAG_MMIO) base += hwif->channel << 6; else base += hwif->channel << 4; @@ -117,7 +117,7 @@ static inline unsigned long siimage_seldev(ide_drive_t *drive, int r) unsigned long base = (unsigned long)hwif->hwif_data; base += 0xA0 + r; - if (hwif->mmio) + if (hwif->host_flags & IDE_HFLAG_MMIO) base += hwif->channel << 6; else base += hwif->channel << 4; @@ -190,7 +190,9 @@ static u8 sil_pata_udma_filter(ide_drive_t *drive) unsigned long base = (unsigned long)hwif->hwif_data; u8 scsc, mask = 0; - scsc = sil_ioread8(dev, base + (hwif->mmio ? 0x4A : 0x8A)); + base += (hwif->host_flags & IDE_HFLAG_MMIO) ? 0x4A : 0x8A; + + scsc = sil_ioread8(dev, base); switch (scsc & 0x30) { case 0x10: /* 133 */ @@ -238,8 +240,9 @@ static void sil_set_pio_mode(ide_drive_t *drive, u8 pio) unsigned long tfaddr = siimage_selreg(hwif, 0x02); unsigned long base = (unsigned long)hwif->hwif_data; u8 tf_pio = pio; - u8 addr_mask = hwif->channel ? (hwif->mmio ? 0xF4 : 0x84) - : (hwif->mmio ? 0xB4 : 0x80); + u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; + u8 addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84) + : (mmio ? 0xB4 : 0x80); u8 mode = 0; u8 unit = drive->select.b.unit; @@ -290,13 +293,13 @@ static void sil_set_dma_mode(ide_drive_t *drive, const u8 speed) u16 ultra = 0, multi = 0; u8 mode = 0, unit = drive->select.b.unit; unsigned long base = (unsigned long)hwif->hwif_data; - u8 scsc = 0, addr_mask = hwif->channel ? - (hwif->mmio ? 0xF4 : 0x84) : - (hwif->mmio ? 0xB4 : 0x80); + u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; + u8 scsc = 0, addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84) + : (mmio ? 0xB4 : 0x80); unsigned long ma = siimage_seldev(drive, 0x08); unsigned long ua = siimage_seldev(drive, 0x0C); - scsc = sil_ioread8 (dev, base + (hwif->mmio ? 0x4A : 0x8A)); + scsc = sil_ioread8 (dev, base + (mmio ? 0x4A : 0x8A)); mode = sil_ioread8 (dev, base + addr_mask); multi = sil_ioread16(dev, ma); ultra = sil_ioread16(dev, ua); @@ -391,7 +394,7 @@ static int siimage_mmio_dma_test_irq(ide_drive_t *drive) static int siimage_dma_test_irq(ide_drive_t *drive) { - if (drive->hwif->mmio) + if (drive->hwif->host_flags & IDE_HFLAG_MMIO) return siimage_mmio_dma_test_irq(drive); else return siimage_io_dma_test_irq(drive); @@ -640,8 +643,6 @@ static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif) hwif->irq = dev->irq; hwif->dma_base = (unsigned long)addr + (ch ? 0x08 : 0x00); - - hwif->mmio = 1; } static int is_dev_seagate_sata(ide_drive_t *drive) diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c index 566e0ecb8db..3ed9728abd2 100644 --- a/drivers/ide/pci/via82cxxx.c +++ b/drivers/ide/pci/via82cxxx.c @@ -120,21 +120,21 @@ static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing) if (~vdev->via_config->flags & VIA_BAD_AST) { pci_read_config_byte(dev, VIA_ADDRESS_SETUP, &t); - t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(timing->setup, 1, 4) - 1) << ((3 - dn) << 1)); + t = (t & ~(3 << ((3 - dn) << 1))) | ((clamp_val(timing->setup, 1, 4) - 1) << ((3 - dn) << 1)); pci_write_config_byte(dev, VIA_ADDRESS_SETUP, t); } pci_write_config_byte(dev, VIA_8BIT_TIMING + (1 - (dn >> 1)), - ((FIT(timing->act8b, 1, 16) - 1) << 4) | (FIT(timing->rec8b, 1, 16) - 1)); + ((clamp_val(timing->act8b, 1, 16) - 1) << 4) | (clamp_val(timing->rec8b, 1, 16) - 1)); pci_write_config_byte(dev, VIA_DRIVE_TIMING + (3 - dn), - ((FIT(timing->active, 1, 16) - 1) << 4) | (FIT(timing->recover, 1, 16) - 1)); + ((clamp_val(timing->active, 1, 16) - 1) << 4) | (clamp_val(timing->recover, 1, 16) - 1)); switch (vdev->via_config->udma_mask) { - case ATA_UDMA2: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 5) - 2)) : 0x03; break; - case ATA_UDMA4: t = timing->udma ? (0xe8 | (FIT(timing->udma, 2, 9) - 2)) : 0x0f; break; - case ATA_UDMA5: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break; - case ATA_UDMA6: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break; + case ATA_UDMA2: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 5) - 2)) : 0x03; break; + case ATA_UDMA4: t = timing->udma ? (0xe8 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x0f; break; + case ATA_UDMA5: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x07; break; + case ATA_UDMA6: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x07; break; default: return; } @@ -340,7 +340,7 @@ static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const * Determine system bus clock. */ - via_clock = (ide_pci_clk ? ide_pci_clk : system_bus_clock()) * 1000; + via_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; switch (via_clock) { case 33000: via_clock = 33333; break; diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index ba2d5872796..dcb2c466bb9 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -480,13 +480,13 @@ pmac_ide_do_update_timings(ide_drive_t *drive) pmac_ide_selectproc(drive); } -static void -pmac_outbsync(ide_drive_t *drive, u8 value, unsigned long port) +static void pmac_outbsync(ide_hwif_t *hwif, u8 value, unsigned long port) { u32 tmp; writeb(value, (void __iomem *) port); - tmp = readl(PMAC_IDE_REG(IDE_TIMING_CONFIG)); + tmp = readl((void __iomem *)(hwif->io_ports.data_addr + + IDE_TIMING_CONFIG)); } /* diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index 5171601fb25..abcfb1739d4 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -87,7 +87,7 @@ unsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d) unsigned long dma_base = 0; u8 dma_stat = 0; - if (hwif->mmio) + if (hwif->host_flags & IDE_HFLAG_MMIO) return hwif->dma_base; if (hwif->mate && hwif->mate->dma_base) { @@ -374,7 +374,7 @@ int ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d) if (base == 0 || ide_pci_set_master(dev, d->name) < 0) return -1; - if (hwif->mmio) + if (hwif->host_flags & IDE_HFLAG_MMIO) printk(KERN_INFO " %s: MMIO-DMA\n", hwif->name); else printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n", diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index 44d8d5163a1..683bce375c7 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -60,6 +60,13 @@ #define IDESCSI_DEBUG_LOG 0 +#if IDESCSI_DEBUG_LOG +#define debug_log(fmt, args...) \ + printk(KERN_INFO "ide-scsi: " fmt, ## args) +#else +#define debug_log(fmt, args...) do {} while (0) +#endif + /* * SCSI command transformation layer */ @@ -129,14 +136,15 @@ static inline idescsi_scsi_t *drive_to_idescsi(ide_drive_t *ide_drive) #define IDESCSI_PC_RQ 90 /* - * PIO data transfer routines using the scatter gather table. + * PIO data transfer routine using the scatter gather table. */ -static void idescsi_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, - unsigned int bcount) +static void ide_scsi_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, + unsigned int bcount, int write) { ide_hwif_t *hwif = drive->hwif; - int count; + xfer_func_t *xf = write ? hwif->output_data : hwif->input_data; char *buf; + int count; while (bcount) { count = min(pc->sg->length - pc->b_count, bcount); @@ -145,13 +153,13 @@ static void idescsi_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, local_irq_save(flags); buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) + - pc->sg->offset; - hwif->input_data(drive, NULL, buf + pc->b_count, count); + pc->sg->offset; + xf(drive, NULL, buf + pc->b_count, count); kunmap_atomic(buf - pc->sg->offset, KM_IRQ0); local_irq_restore(flags); } else { buf = sg_virt(pc->sg); - hwif->input_data(drive, NULL, buf + pc->b_count, count); + xf(drive, NULL, buf + pc->b_count, count); } bcount -= count; pc->b_count += count; if (pc->b_count == pc->sg->length) { @@ -163,51 +171,34 @@ static void idescsi_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, } if (bcount) { - printk (KERN_ERR "ide-scsi: scatter gather table too small, discarding data\n"); - ide_pad_transfer(drive, 0, bcount); + printk(KERN_ERR "%s: scatter gather table too small, %s\n", + drive->name, write ? "padding with zeros" + : "discarding data"); + ide_pad_transfer(drive, write, bcount); } } -static void idescsi_output_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, - unsigned int bcount) +static void ide_scsi_hex_dump(u8 *data, int len) { - ide_hwif_t *hwif = drive->hwif; - int count; - char *buf; + print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 16, 1, data, len, 0); +} - while (bcount) { - count = min(pc->sg->length - pc->b_count, bcount); - if (PageHighMem(sg_page(pc->sg))) { - unsigned long flags; +static int idescsi_end_request(ide_drive_t *, int, int); - local_irq_save(flags); - buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) + - pc->sg->offset; - hwif->output_data(drive, NULL, buf + pc->b_count, count); - kunmap_atomic(buf - pc->sg->offset, KM_IRQ0); - local_irq_restore(flags); - } else { - buf = sg_virt(pc->sg); - hwif->output_data(drive, NULL, buf + pc->b_count, count); - } - bcount -= count; pc->b_count += count; - if (pc->b_count == pc->sg->length) { - if (!--pc->sg_cnt) - break; - pc->sg = sg_next(pc->sg); - pc->b_count = 0; - } - } +static void ide_scsi_callback(ide_drive_t *drive) +{ + idescsi_scsi_t *scsi = drive_to_idescsi(drive); + struct ide_atapi_pc *pc = scsi->pc; - if (bcount) { - printk (KERN_ERR "ide-scsi: scatter gather table too small, padding with zeros\n"); - ide_pad_transfer(drive, 1, bcount); - } -} + if (pc->flags & PC_FLAG_TIMEDOUT) + debug_log("%s: got timed out packet %lu at %lu\n", __func__, + pc->scsi_cmd->serial_number, jiffies); + /* end this request now - scsi should retry it*/ + else if (test_bit(IDESCSI_LOG_CMD, &scsi->log)) + printk(KERN_INFO "Packet command completed, %d bytes" + " transferred\n", pc->xferred); -static void ide_scsi_hex_dump(u8 *data, int len) -{ - print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 16, 1, data, len, 0); + idescsi_end_request(drive, 1, 0); } static int idescsi_check_condition(ide_drive_t *drive, @@ -228,14 +219,16 @@ static int idescsi_check_condition(ide_drive_t *drive, kfree(pc); return -ENOMEM; } - ide_init_drive_cmd(rq); + blk_rq_init(NULL, rq); rq->special = (char *) pc; pc->rq = rq; pc->buf = buf; pc->c[0] = REQUEST_SENSE; pc->c[4] = pc->req_xfer = pc->buf_size = SCSI_SENSE_BUFFERSIZE; rq->cmd_type = REQ_TYPE_SENSE; + rq->cmd_flags |= REQ_PREEMPT; pc->timeout = jiffies + WAIT_READY; + pc->callback = ide_scsi_callback; /* NOTE! Save the failed packet command in "rq->buffer" */ rq->buffer = (void *) failed_cmd->special; pc->scsi_cmd = ((struct ide_atapi_pc *) failed_cmd->special)->scsi_cmd; @@ -244,11 +237,10 @@ static int idescsi_check_condition(ide_drive_t *drive, ide_scsi_hex_dump(pc->c, 6); } rq->rq_disk = scsi->disk; - return ide_do_drive_cmd(drive, rq, ide_preempt); + ide_do_drive_cmd(drive, rq); + return 0; } -static int idescsi_end_request(ide_drive_t *, int, int); - static ide_startstop_t idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err) { @@ -256,7 +248,7 @@ idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err) if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT)) /* force an abort */ - hwif->OUTBSYNC(drive, WIN_IDLEIMMEDIATE, + hwif->OUTBSYNC(hwif, WIN_IDLEIMMEDIATE, hwif->io_ports.command_addr); rq->errors++; @@ -269,10 +261,9 @@ idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err) static ide_startstop_t idescsi_atapi_abort(ide_drive_t *drive, struct request *rq) { -#if IDESCSI_DEBUG_LOG - printk(KERN_WARNING "idescsi_atapi_abort called for %lu\n", + debug_log("%s called for %lu\n", __func__, ((struct ide_atapi_pc *) rq->special)->scsi_cmd->serial_number); -#endif + rq->errors |= ERROR_MAX; idescsi_end_request(drive, 0, 0); @@ -351,9 +342,9 @@ static int idescsi_expiry(ide_drive_t *drive) idescsi_scsi_t *scsi = drive_to_idescsi(drive); struct ide_atapi_pc *pc = scsi->pc; -#if IDESCSI_DEBUG_LOG - printk(KERN_WARNING "idescsi_expiry called for %lu at %lu\n", pc->scsi_cmd->serial_number, jiffies); -#endif + debug_log("%s called for %lu at %lu\n", __func__, + pc->scsi_cmd->serial_number, jiffies); + pc->flags |= PC_FLAG_TIMEDOUT; return 0; /* we do not want the ide subsystem to retry */ @@ -365,141 +356,19 @@ static int idescsi_expiry(ide_drive_t *drive) static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive) { idescsi_scsi_t *scsi = drive_to_idescsi(drive); - ide_hwif_t *hwif = drive->hwif; struct ide_atapi_pc *pc = scsi->pc; - struct request *rq = pc->rq; - unsigned int temp; - u16 bcount; - u8 stat, ireason; - -#if IDESCSI_DEBUG_LOG - printk (KERN_INFO "ide-scsi: Reached idescsi_pc_intr interrupt handler\n"); -#endif /* IDESCSI_DEBUG_LOG */ - - if (pc->flags & PC_FLAG_TIMEDOUT) { -#if IDESCSI_DEBUG_LOG - printk(KERN_WARNING "idescsi_pc_intr: got timed out packet %lu at %lu\n", - pc->scsi_cmd->serial_number, jiffies); -#endif - /* end this request now - scsi should retry it*/ - idescsi_end_request (drive, 1, 0); - return ide_stopped; - } - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { - pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; -#if IDESCSI_DEBUG_LOG - printk ("ide-scsi: %s: DMA complete\n", drive->name); -#endif /* IDESCSI_DEBUG_LOG */ - pc->xferred = pc->req_xfer; - (void)hwif->dma_ops->dma_end(drive); - } - - /* Clear the interrupt */ - stat = ide_read_status(drive); - - if ((stat & DRQ_STAT) == 0) { - /* No more interrupts */ - if (test_bit(IDESCSI_LOG_CMD, &scsi->log)) - printk(KERN_INFO "Packet command completed, %d bytes" - " transferred\n", pc->xferred); - local_irq_enable_in_hardirq(); - if (stat & ERR_STAT) - rq->errors++; - idescsi_end_request (drive, 1, 0); - return ide_stopped; - } - bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) | - hwif->INB(hwif->io_ports.lbam_addr); - ireason = hwif->INB(hwif->io_ports.nsect_addr); - - if (ireason & CD) { - printk(KERN_ERR "ide-scsi: CoD != 0 in idescsi_pc_intr\n"); - return ide_do_reset (drive); - } - if (ireason & IO) { - temp = pc->xferred + bcount; - if (temp > pc->req_xfer) { - if (temp > pc->buf_size) { - printk(KERN_ERR "ide-scsi: The scsi wants to " - "send us more data than expected " - "- discarding data\n"); - temp = pc->buf_size - pc->xferred; - if (temp) { - pc->flags &= ~PC_FLAG_WRITING; - if (pc->sg) - idescsi_input_buffers(drive, pc, - temp); - else - hwif->input_data(drive, NULL, - pc->cur_pos, temp); - printk(KERN_ERR "ide-scsi: transferred" - " %d of %d bytes\n", - temp, bcount); - } - pc->xferred += temp; - pc->cur_pos += temp; - ide_pad_transfer(drive, 0, bcount - temp); - ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry); - return ide_started; - } -#if IDESCSI_DEBUG_LOG - printk (KERN_NOTICE "ide-scsi: The scsi wants to send us more data than expected - allowing transfer\n"); -#endif /* IDESCSI_DEBUG_LOG */ - } - } - if (ireason & IO) { - pc->flags &= ~PC_FLAG_WRITING; - if (pc->sg) - idescsi_input_buffers(drive, pc, bcount); - else - hwif->input_data(drive, NULL, pc->cur_pos, bcount); - } else { - pc->flags |= PC_FLAG_WRITING; - if (pc->sg) - idescsi_output_buffers(drive, pc, bcount); - else - hwif->output_data(drive, NULL, pc->cur_pos, bcount); - } - /* Update the current position */ - pc->xferred += bcount; - pc->cur_pos += bcount; - /* And set the interrupt handler again */ - ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry); - return ide_started; + return ide_pc_intr(drive, pc, idescsi_pc_intr, get_timeout(pc), + idescsi_expiry, NULL, NULL, NULL, + ide_scsi_io_buffers); } static ide_startstop_t idescsi_transfer_pc(ide_drive_t *drive) { - ide_hwif_t *hwif = drive->hwif; idescsi_scsi_t *scsi = drive_to_idescsi(drive); - struct ide_atapi_pc *pc = scsi->pc; - ide_startstop_t startstop; - u8 ireason; - if (ide_wait_stat(&startstop,drive,DRQ_STAT,BUSY_STAT,WAIT_READY)) { - printk(KERN_ERR "ide-scsi: Strange, packet command " - "initiated yet DRQ isn't asserted\n"); - return startstop; - } - ireason = hwif->INB(hwif->io_ports.nsect_addr); - if ((ireason & CD) == 0 || (ireason & IO)) { - printk(KERN_ERR "ide-scsi: (IO,CoD) != (0,1) while " - "issuing a packet command\n"); - return ide_do_reset (drive); - } - BUG_ON(HWGROUP(drive)->handler != NULL); - /* Set the interrupt routine */ - ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry); - - /* Send the actual packet */ - hwif->output_data(drive, NULL, scsi->pc->c, 12); - - if (pc->flags & PC_FLAG_DMA_OK) { - pc->flags |= PC_FLAG_DMA_IN_PROGRESS; - hwif->dma_ops->dma_start(drive); - } - return ide_started; + return ide_transfer_pc(drive, scsi->pc, idescsi_pc_intr, + get_timeout(scsi->pc), idescsi_expiry); } static inline int idescsi_set_direction(struct ide_atapi_pc *pc) @@ -545,38 +414,12 @@ static ide_startstop_t idescsi_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc) { idescsi_scsi_t *scsi = drive_to_idescsi(drive); - ide_hwif_t *hwif = drive->hwif; - u16 bcount; - u8 dma = 0; /* Set the current packet command */ scsi->pc = pc; - /* We haven't transferred any data yet */ - pc->xferred = 0; - pc->cur_pos = pc->buf; - /* Request to transfer the entire buffer at once */ - bcount = min(pc->req_xfer, 63 * 1024); - - if (drive->using_dma && !idescsi_map_sg(drive, pc)) { - hwif->sg_mapped = 1; - dma = !hwif->dma_ops->dma_setup(drive); - hwif->sg_mapped = 0; - } - - ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK, bcount, dma); - if (dma) - pc->flags |= PC_FLAG_DMA_OK; - - if (test_bit(IDESCSI_DRQ_INTERRUPT, &scsi->flags)) { - ide_execute_command(drive, WIN_PACKETCMD, &idescsi_transfer_pc, - get_timeout(pc), idescsi_expiry); - return ide_started; - } else { - /* Issue the packet command */ - ide_execute_pkt_cmd(drive); - return idescsi_transfer_pc(drive); - } + return ide_issue_pc(drive, pc, idescsi_transfer_pc, + get_timeout(pc), idescsi_expiry); } /* @@ -584,14 +427,22 @@ static ide_startstop_t idescsi_issue_pc(ide_drive_t *drive, */ static ide_startstop_t idescsi_do_request (ide_drive_t *drive, struct request *rq, sector_t block) { -#if IDESCSI_DEBUG_LOG - printk (KERN_INFO "dev: %s, cmd: %x, errors: %d\n", rq->rq_disk->disk_name,rq->cmd[0],rq->errors); - printk (KERN_INFO "sector: %ld, nr_sectors: %ld, current_nr_sectors: %d\n",rq->sector,rq->nr_sectors,rq->current_nr_sectors); -#endif /* IDESCSI_DEBUG_LOG */ + debug_log("dev: %s, cmd: %x, errors: %d\n", rq->rq_disk->disk_name, + rq->cmd[0], rq->errors); + debug_log("sector: %ld, nr_sectors: %ld, current_nr_sectors: %d\n", + rq->sector, rq->nr_sectors, rq->current_nr_sectors); if (blk_sense_request(rq) || blk_special_request(rq)) { - return idescsi_issue_pc(drive, - (struct ide_atapi_pc *) rq->special); + struct ide_atapi_pc *pc = (struct ide_atapi_pc *)rq->special; + idescsi_scsi_t *scsi = drive_to_idescsi(drive); + + if (test_bit(IDESCSI_DRQ_INTERRUPT, &scsi->flags)) + pc->flags |= PC_FLAG_DRQ_INTERRUPT; + + if (drive->using_dma && !idescsi_map_sg(drive, pc)) + pc->flags |= PC_FLAG_DMA_OK; + + return idescsi_issue_pc(drive, pc); } blk_dump_rq_flags(rq, "ide-scsi: unsup command"); idescsi_end_request (drive, 0, 0); @@ -646,6 +497,8 @@ static void ide_scsi_remove(ide_drive_t *drive) put_disk(g); ide_scsi_put(scsi); + + drive->scsi = 0; } static int ide_scsi_probe(ide_drive_t *); @@ -765,6 +618,8 @@ static int idescsi_queue (struct scsi_cmnd *cmd, memset (pc->c, 0, 12); pc->flags = 0; + if (cmd->sc_data_direction == DMA_TO_DEVICE) + pc->flags |= PC_FLAG_WRITING; pc->rq = rq; memcpy (pc->c, cmd->cmnd, cmd->cmd_len); pc->buf = NULL; @@ -775,6 +630,7 @@ static int idescsi_queue (struct scsi_cmnd *cmd, pc->scsi_cmd = cmd; pc->done = done; pc->timeout = jiffies + cmd->timeout_per_command; + pc->callback = ide_scsi_callback; if (test_bit(IDESCSI_LOG_CMD, &scsi->log)) { printk ("ide-scsi: %s: que %lu, cmd = ", drive->name, cmd->serial_number); @@ -785,12 +641,11 @@ static int idescsi_queue (struct scsi_cmnd *cmd, } } - ide_init_drive_cmd (rq); + blk_rq_init(NULL, rq); rq->special = (char *) pc; rq->cmd_type = REQ_TYPE_SPECIAL; spin_unlock_irq(host->host_lock); - rq->rq_disk = scsi->disk; - (void) ide_do_drive_cmd (drive, rq, ide_end); + blk_execute_rq_nowait(drive->queue, scsi->disk, rq, 0, NULL); spin_lock_irq(host->host_lock); return 0; abort: @@ -985,6 +840,8 @@ static int ide_scsi_probe(ide_drive_t *drive) !(host = scsi_host_alloc(&idescsi_template,sizeof(idescsi_scsi_t)))) return -ENODEV; + drive->scsi = 1; + g = alloc_disk(1 << PARTN_BITS); if (!g) goto out_host_put; @@ -993,10 +850,10 @@ static int ide_scsi_probe(ide_drive_t *drive) host->max_id = 1; -#if IDESCSI_DEBUG_LOG if (drive->id->last_lun) - printk(KERN_NOTICE "%s: id->last_lun=%u\n", drive->name, drive->id->last_lun); -#endif + debug_log("%s: id->last_lun=%u\n", drive->name, + drive->id->last_lun); + if ((drive->id->last_lun & 0x7) != 7) host->max_lun = (drive->id->last_lun & 0x7) + 1; else @@ -1025,6 +882,7 @@ static int ide_scsi_probe(ide_drive_t *drive) put_disk(g); out_host_put: + drive->scsi = 0; scsi_host_put(host); return err; } |