ide: pass command instead of request to ide_pio_datablock()
* Add IDE_TFLAG_FS taskfile flag and set it for REQ_TYPE_FS requests. * Convert ->{in,out}put_data methods to take command instead of request as an argument. Then convert pre_task_out_intr(), task_end_request(), task_error(), task_in_unexpected(), ide_pio_sector(), ide_pio_multi() and ide_pio_datablock() in similar way. * Rename task_end_request() to ide_finish_cmd(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Родитель
22aa4b32a1
Коммит
adb1af9803
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@ -143,7 +143,7 @@ static void apply_timings(const u8 chipselect, const u8 pio,
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set_smc_timings(chipselect, cycle, setup, pulse, data_float, use_iordy);
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}
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static void at91_ide_input_data(ide_drive_t *drive, struct request *rq,
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static void at91_ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
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void *buf, unsigned int len)
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{
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ide_hwif_t *hwif = drive->hwif;
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@ -160,7 +160,7 @@ static void at91_ide_input_data(ide_drive_t *drive, struct request *rq,
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leave_16bit(chipselect, mode);
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}
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static void at91_ide_output_data(ide_drive_t *drive, struct request *rq,
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static void at91_ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
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void *buf, unsigned int len)
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{
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ide_hwif_t *hwif = drive->hwif;
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@ -86,13 +86,13 @@ void auide_outsw(unsigned long port, void *addr, u32 count)
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ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp);
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}
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static void au1xxx_input_data(ide_drive_t *drive, struct request *rq,
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static void au1xxx_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
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void *buf, unsigned int len)
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{
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auide_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
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}
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static void au1xxx_output_data(ide_drive_t *drive, struct request *rq,
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static void au1xxx_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
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void *buf, unsigned int len)
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{
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auide_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
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@ -62,23 +62,23 @@ static void falconide_get_lock(irq_handler_t handler, void *data)
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}
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}
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static void falconide_input_data(ide_drive_t *drive, struct request *rq,
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static void falconide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
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void *buf, unsigned int len)
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{
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unsigned long data_addr = drive->hwif->io_ports.data_addr;
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if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
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if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
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return insw(data_addr, buf, (len + 1) / 2);
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raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
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}
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static void falconide_output_data(ide_drive_t *drive, struct request *rq,
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static void falconide_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
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void *buf, unsigned int len)
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{
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unsigned long data_addr = drive->hwif->io_ports.data_addr;
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if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
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if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
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return outsw(data_addr, buf, (len + 1) / 2);
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raw_outsw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
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@ -156,6 +156,8 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
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tf->device = head;
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}
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cmd.tf_flags |= IDE_TFLAG_FS;
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if (rq_data_dir(rq))
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cmd.tf_flags |= IDE_TFLAG_WRITE;
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@ -96,9 +96,9 @@ ide_startstop_t ide_dma_intr(ide_drive_t *drive)
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if (OK_STAT(stat, DRIVE_READY, drive->bad_wstat | ATA_DRQ)) {
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if (!dma_stat) {
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struct request *rq = hwif->rq;
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struct ide_cmd *cmd = &hwif->cmd;
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task_end_request(drive, rq, stat);
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ide_finish_cmd(drive, cmd, stat);
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return ide_stopped;
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}
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printk(KERN_ERR "%s: %s: bad DMA status (0x%02x)\n",
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@ -143,13 +143,13 @@ static void mm_insw(unsigned long addr, void *buf, u32 len)
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*bp = bswap(*(volatile u16 *)addr);
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}
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static void h8300_input_data(ide_drive_t *drive, struct request *rq,
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static void h8300_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
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void *buf, unsigned int len)
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{
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mm_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
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}
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static void h8300_output_data(ide_drive_t *drive, struct request *rq,
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static void h8300_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
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void *buf, unsigned int len)
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{
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mm_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
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@ -219,7 +219,7 @@ static void ata_vlb_sync(unsigned long port)
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* so if an odd len is specified, be sure that there's at least one
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* extra byte allocated for the buffer.
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*/
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void ide_input_data(ide_drive_t *drive, struct request *rq, void *buf,
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void ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
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unsigned int len)
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{
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ide_hwif_t *hwif = drive->hwif;
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@ -265,7 +265,7 @@ EXPORT_SYMBOL_GPL(ide_input_data);
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/*
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* This is used for most PIO data transfers *to* the IDE interface
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*/
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void ide_output_data(ide_drive_t *drive, struct request *rq, void *buf,
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void ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
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unsigned int len)
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{
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ide_hwif_t *hwif = drive->hwif;
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@ -54,19 +54,20 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
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}
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static ide_startstop_t task_no_data_intr(ide_drive_t *);
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static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *);
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static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct ide_cmd *);
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static ide_startstop_t task_in_intr(ide_drive_t *);
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ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
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ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
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{
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ide_hwif_t *hwif = drive->hwif;
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struct ide_cmd *cmd = &hwif->cmd;
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struct ide_taskfile *tf = &cmd->tf;
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ide_handler_t *handler = NULL;
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const struct ide_tp_ops *tp_ops = hwif->tp_ops;
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const struct ide_dma_ops *dma_ops = hwif->dma_ops;
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if (cmd->data_phase == TASKFILE_MULTI_IN ||
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cmd->data_phase == TASKFILE_MULTI_OUT) {
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if (orig_cmd->data_phase == TASKFILE_MULTI_IN ||
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orig_cmd->data_phase == TASKFILE_MULTI_OUT) {
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if (!drive->mult_count) {
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printk(KERN_ERR "%s: multimode not set!\n",
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drive->name);
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@ -74,10 +75,10 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
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}
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}
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if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
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cmd->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS;
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if (orig_cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
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orig_cmd->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS;
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memcpy(&hwif->cmd, cmd, sizeof(*cmd));
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memcpy(cmd, orig_cmd, sizeof(*cmd));
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if ((cmd->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) {
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ide_tf_dump(drive->name, tf);
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@ -91,7 +92,7 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
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case TASKFILE_OUT:
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tp_ops->exec_command(hwif, tf->command);
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ndelay(400); /* FIXME */
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return pre_task_out_intr(drive, cmd->rq);
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return pre_task_out_intr(drive, cmd);
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case TASKFILE_MULTI_IN:
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case TASKFILE_IN:
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handler = task_in_intr;
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@ -203,7 +204,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive)
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return stat;
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}
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static void ide_pio_sector(ide_drive_t *drive, struct request *rq,
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static void ide_pio_sector(ide_drive_t *drive, struct ide_cmd *cmd,
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unsigned int write)
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{
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ide_hwif_t *hwif = drive->hwif;
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@ -244,9 +245,9 @@ static void ide_pio_sector(ide_drive_t *drive, struct request *rq,
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/* do the actual data transfer */
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if (write)
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hwif->tp_ops->output_data(drive, rq, buf, SECTOR_SIZE);
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hwif->tp_ops->output_data(drive, cmd, buf, SECTOR_SIZE);
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else
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hwif->tp_ops->input_data(drive, rq, buf, SECTOR_SIZE);
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hwif->tp_ops->input_data(drive, cmd, buf, SECTOR_SIZE);
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kunmap_atomic(buf, KM_BIO_SRC_IRQ);
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#ifdef CONFIG_HIGHMEM
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@ -254,24 +255,23 @@ static void ide_pio_sector(ide_drive_t *drive, struct request *rq,
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#endif
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}
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static void ide_pio_multi(ide_drive_t *drive, struct request *rq,
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static void ide_pio_multi(ide_drive_t *drive, struct ide_cmd *cmd,
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unsigned int write)
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{
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unsigned int nsect;
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nsect = min_t(unsigned int, drive->hwif->nleft, drive->mult_count);
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while (nsect--)
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ide_pio_sector(drive, rq, write);
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ide_pio_sector(drive, cmd, write);
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}
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static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
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unsigned int write)
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static void ide_pio_datablock(ide_drive_t *drive, struct ide_cmd *cmd,
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unsigned int write)
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{
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struct ide_cmd *cmd = &drive->hwif->cmd;
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u8 saved_io_32bit = drive->io_32bit;
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if (blk_fs_request(rq))
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rq->errors = 0;
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if (cmd->tf_flags & IDE_TFLAG_FS)
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cmd->rq->errors = 0;
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if (cmd->tf_flags & IDE_TFLAG_IO_16BIT)
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drive->io_32bit = 0;
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@ -281,22 +281,21 @@ static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
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switch (cmd->data_phase) {
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case TASKFILE_MULTI_IN:
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case TASKFILE_MULTI_OUT:
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ide_pio_multi(drive, rq, write);
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ide_pio_multi(drive, cmd, write);
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break;
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default:
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ide_pio_sector(drive, rq, write);
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ide_pio_sector(drive, cmd, write);
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break;
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}
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drive->io_32bit = saved_io_32bit;
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}
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static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
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static ide_startstop_t task_error(ide_drive_t *drive, struct ide_cmd *cmd,
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const char *s, u8 stat)
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{
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if (blk_fs_request(rq)) {
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if (cmd->tf_flags & IDE_TFLAG_FS) {
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ide_hwif_t *hwif = drive->hwif;
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struct ide_cmd *cmd = &hwif->cmd;
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int sectors = hwif->nsect - hwif->nleft;
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switch (cmd->data_phase) {
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@ -323,19 +322,17 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
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return ide_error(drive, s, stat);
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}
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void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
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void ide_finish_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat)
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{
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if (blk_fs_request(rq) == 0) {
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struct ide_cmd *cmd = rq->special;
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if ((cmd->tf_flags & IDE_TFLAG_FS) == 0) {
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u8 err = ide_read_error(drive);
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if (cmd)
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ide_complete_cmd(drive, cmd, stat, err);
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ide_complete_cmd(drive, cmd, stat, err);
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ide_complete_rq(drive, err);
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return;
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}
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ide_end_request(drive, 1, rq->nr_sectors);
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ide_end_request(drive, 1, cmd->rq->nr_sectors);
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}
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/*
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@ -344,11 +341,12 @@ void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
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* It might be a spurious irq (shared irq), but it might be a
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* command that had no output.
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*/
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static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq, u8 stat)
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static ide_startstop_t task_in_unexpected(ide_drive_t *drive,
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struct ide_cmd *cmd, u8 stat)
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{
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/* Command all done? */
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if (OK_STAT(stat, ATA_DRDY, ATA_BUSY)) {
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task_end_request(drive, rq, stat);
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ide_finish_cmd(drive, cmd, stat);
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return ide_stopped;
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}
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@ -363,25 +361,25 @@ static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq
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static ide_startstop_t task_in_intr(ide_drive_t *drive)
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{
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ide_hwif_t *hwif = drive->hwif;
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struct request *rq = hwif->rq;
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struct ide_cmd *cmd = &drive->hwif->cmd;
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u8 stat = hwif->tp_ops->read_status(hwif);
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/* Error? */
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if (stat & ATA_ERR)
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return task_error(drive, rq, __func__, stat);
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return task_error(drive, cmd, __func__, stat);
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/* Didn't want any data? Odd. */
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if ((stat & ATA_DRQ) == 0)
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return task_in_unexpected(drive, rq, stat);
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return task_in_unexpected(drive, cmd, stat);
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ide_pio_datablock(drive, rq, 0);
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ide_pio_datablock(drive, cmd, 0);
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/* Are we done? Check status and finish transfer. */
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if (!hwif->nleft) {
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stat = wait_drive_not_busy(drive);
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if (!OK_STAT(stat, 0, BAD_STAT))
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return task_error(drive, rq, __func__, stat);
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task_end_request(drive, rq, stat);
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return task_error(drive, cmd, __func__, stat);
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ide_finish_cmd(drive, cmd, stat);
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return ide_stopped;
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}
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@ -397,31 +395,31 @@ static ide_startstop_t task_in_intr(ide_drive_t *drive)
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static ide_startstop_t task_out_intr (ide_drive_t *drive)
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{
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ide_hwif_t *hwif = drive->hwif;
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struct request *rq = hwif->rq;
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struct ide_cmd *cmd = &drive->hwif->cmd;
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u8 stat = hwif->tp_ops->read_status(hwif);
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if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
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return task_error(drive, rq, __func__, stat);
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return task_error(drive, cmd, __func__, stat);
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/* Deal with unexpected ATA data phase. */
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if (((stat & ATA_DRQ) == 0) ^ !hwif->nleft)
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return task_error(drive, rq, __func__, stat);
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return task_error(drive, cmd, __func__, stat);
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if (!hwif->nleft) {
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task_end_request(drive, rq, stat);
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ide_finish_cmd(drive, cmd, stat);
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return ide_stopped;
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}
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/* Still data left to transfer. */
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ide_pio_datablock(drive, rq, 1);
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ide_pio_datablock(drive, cmd, 1);
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ide_set_handler(drive, &task_out_intr, WAIT_WORSTCASE, NULL);
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return ide_started;
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}
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static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq)
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static ide_startstop_t pre_task_out_intr(ide_drive_t *drive,
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struct ide_cmd *cmd)
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{
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struct ide_cmd *cmd = &drive->hwif->cmd;
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ide_startstop_t startstop;
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if (ide_wait_stat(&startstop, drive, ATA_DRQ,
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|
@ -437,7 +435,7 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq)
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local_irq_disable();
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ide_set_handler(drive, &task_out_intr, WAIT_WORSTCASE, NULL);
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ide_pio_datablock(drive, rq, 1);
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ide_pio_datablock(drive, cmd, 1);
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return ide_started;
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}
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|
|
|
@ -72,23 +72,23 @@ static void q40_ide_setup_ports(hw_regs_t *hw, unsigned long base,
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hw->chipset = ide_generic;
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}
|
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static void q40ide_input_data(ide_drive_t *drive, struct request *rq,
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static void q40ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
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void *buf, unsigned int len)
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{
|
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unsigned long data_addr = drive->hwif->io_ports.data_addr;
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|
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if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
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if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
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return insw(data_addr, buf, (len + 1) / 2);
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raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
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}
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||||
|
||||
static void q40ide_output_data(ide_drive_t *drive, struct request *rq,
|
||||
static void q40ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
|
||||
void *buf, unsigned int len)
|
||||
{
|
||||
unsigned long data_addr = drive->hwif->io_ports.data_addr;
|
||||
|
||||
if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
|
||||
if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
|
||||
return outsw(data_addr, buf, (len + 1) / 2);
|
||||
|
||||
raw_outsw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
|
||||
|
|
|
@ -750,7 +750,7 @@ static void scc_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
|
|||
}
|
||||
}
|
||||
|
||||
static void scc_input_data(ide_drive_t *drive, struct request *rq,
|
||||
static void scc_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
|
||||
void *buf, unsigned int len)
|
||||
{
|
||||
unsigned long data_addr = drive->hwif->io_ports.data_addr;
|
||||
|
@ -766,7 +766,7 @@ static void scc_input_data(ide_drive_t *drive, struct request *rq,
|
|||
scc_ide_insw(data_addr, buf, len / 2);
|
||||
}
|
||||
|
||||
static void scc_output_data(ide_drive_t *drive, struct request *rq,
|
||||
static void scc_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
|
||||
void *buf, unsigned int len)
|
||||
{
|
||||
unsigned long data_addr = drive->hwif->io_ports.data_addr;
|
||||
|
|
|
@ -174,7 +174,7 @@ static void tx4938ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
|
|||
}
|
||||
}
|
||||
|
||||
static void tx4938ide_input_data_swap(ide_drive_t *drive, struct request *rq,
|
||||
static void tx4938ide_input_data_swap(ide_drive_t *drive, struct ide_cmd *cmd,
|
||||
void *buf, unsigned int len)
|
||||
{
|
||||
unsigned long port = drive->hwif->io_ports.data_addr;
|
||||
|
@ -186,7 +186,7 @@ static void tx4938ide_input_data_swap(ide_drive_t *drive, struct request *rq,
|
|||
__ide_flush_dcache_range((unsigned long)buf, roundup(len, 2));
|
||||
}
|
||||
|
||||
static void tx4938ide_output_data_swap(ide_drive_t *drive, struct request *rq,
|
||||
static void tx4938ide_output_data_swap(ide_drive_t *drive, struct ide_cmd *cmd,
|
||||
void *buf, unsigned int len)
|
||||
{
|
||||
unsigned long port = drive->hwif->io_ports.data_addr;
|
||||
|
|
|
@ -297,6 +297,7 @@ enum {
|
|||
IDE_TFLAG_IO_16BIT = (1 << 26),
|
||||
/* struct ide_cmd was allocated using kmalloc() */
|
||||
IDE_TFLAG_DYN = (1 << 27),
|
||||
IDE_TFLAG_FS = (1 << 28),
|
||||
};
|
||||
|
||||
enum {
|
||||
|
@ -655,10 +656,10 @@ struct ide_tp_ops {
|
|||
void (*tf_load)(ide_drive_t *, struct ide_cmd *);
|
||||
void (*tf_read)(ide_drive_t *, struct ide_cmd *);
|
||||
|
||||
void (*input_data)(ide_drive_t *, struct request *, void *,
|
||||
unsigned int);
|
||||
void (*output_data)(ide_drive_t *, struct request *, void *,
|
||||
unsigned int);
|
||||
void (*input_data)(ide_drive_t *, struct ide_cmd *,
|
||||
void *, unsigned int);
|
||||
void (*output_data)(ide_drive_t *, struct ide_cmd *,
|
||||
void *, unsigned int);
|
||||
};
|
||||
|
||||
extern const struct ide_tp_ops default_tp_ops;
|
||||
|
@ -866,7 +867,7 @@ typedef ide_startstop_t (ide_handler_t)(ide_drive_t *);
|
|||
typedef int (ide_expiry_t)(ide_drive_t *);
|
||||
|
||||
/* used by ide-cd, ide-floppy, etc. */
|
||||
typedef void (xfer_func_t)(ide_drive_t *, struct request *rq, void *, unsigned);
|
||||
typedef void (xfer_func_t)(ide_drive_t *, struct ide_cmd *, void *, unsigned);
|
||||
|
||||
extern struct mutex ide_setting_mtx;
|
||||
|
||||
|
@ -1175,8 +1176,8 @@ void ide_set_irq(ide_hwif_t *, int);
|
|||
void ide_tf_load(ide_drive_t *, struct ide_cmd *);
|
||||
void ide_tf_read(ide_drive_t *, struct ide_cmd *);
|
||||
|
||||
void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int);
|
||||
void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int);
|
||||
void ide_input_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int);
|
||||
void ide_output_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int);
|
||||
|
||||
int ide_io_buffers(ide_drive_t *, struct ide_atapi_pc *, unsigned int, int);
|
||||
|
||||
|
@ -1226,7 +1227,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *);
|
|||
|
||||
ide_startstop_t do_rw_taskfile(ide_drive_t *, struct ide_cmd *);
|
||||
|
||||
void task_end_request(ide_drive_t *, struct request *, u8);
|
||||
void ide_finish_cmd(ide_drive_t *, struct ide_cmd *, u8);
|
||||
|
||||
int ide_raw_taskfile(ide_drive_t *, struct ide_cmd *, u8 *, u16);
|
||||
int ide_no_data_taskfile(ide_drive_t *, struct ide_cmd *);
|
||||
|
|
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