From: Bartlomiej Zolnierkiewicz Date: Fri, 27 Mar 2009 11:46:38 +0000 (+0100) Subject: ide: pass command instead of request to ide_pio_datablock() X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=adb1af9803d167091c2cb4de14014185054bfe2c;p=linux-2.6-omap-h63xx.git 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 --- diff --git a/drivers/ide/at91_ide.c b/drivers/ide/at91_ide.c index 6be7d87382a..27547121daf 100644 --- a/drivers/ide/at91_ide.c +++ b/drivers/ide/at91_ide.c @@ -143,7 +143,7 @@ static void apply_timings(const u8 chipselect, const u8 pio, set_smc_timings(chipselect, cycle, setup, pulse, data_float, use_iordy); } -static void at91_ide_input_data(ide_drive_t *drive, struct request *rq, +static void at91_ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf, unsigned int len) { ide_hwif_t *hwif = drive->hwif; @@ -160,7 +160,7 @@ static void at91_ide_input_data(ide_drive_t *drive, struct request *rq, leave_16bit(chipselect, mode); } -static void at91_ide_output_data(ide_drive_t *drive, struct request *rq, +static void at91_ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf, unsigned int len) { ide_hwif_t *hwif = drive->hwif; diff --git a/drivers/ide/au1xxx-ide.c b/drivers/ide/au1xxx-ide.c index 3fc3ced8192..72d7d615e1f 100644 --- a/drivers/ide/au1xxx-ide.c +++ b/drivers/ide/au1xxx-ide.c @@ -86,13 +86,13 @@ void auide_outsw(unsigned long port, void *addr, u32 count) ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); } -static void au1xxx_input_data(ide_drive_t *drive, struct request *rq, +static void au1xxx_input_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf, unsigned int len) { auide_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2); } -static void au1xxx_output_data(ide_drive_t *drive, struct request *rq, +static void au1xxx_output_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf, unsigned int len) { auide_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2); diff --git a/drivers/ide/falconide.c b/drivers/ide/falconide.c index 6085feb1fae..b368a5effc3 100644 --- a/drivers/ide/falconide.c +++ b/drivers/ide/falconide.c @@ -62,23 +62,23 @@ static void falconide_get_lock(irq_handler_t handler, void *data) } } -static void falconide_input_data(ide_drive_t *drive, struct request *rq, +static void falconide_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; - 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 insw(data_addr, buf, (len + 1) / 2); raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2); } -static void falconide_output_data(ide_drive_t *drive, struct request *rq, +static void falconide_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); diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 6647cb8bd91..f1555dd4e6a 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -156,6 +156,8 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq, tf->device = head; } + cmd.tf_flags |= IDE_TFLAG_FS; + if (rq_data_dir(rq)) cmd.tf_flags |= IDE_TFLAG_WRITE; diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 12c11b71402..54f17ae9225 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -96,9 +96,9 @@ ide_startstop_t ide_dma_intr(ide_drive_t *drive) if (OK_STAT(stat, DRIVE_READY, drive->bad_wstat | ATA_DRQ)) { if (!dma_stat) { - struct request *rq = hwif->rq; + struct ide_cmd *cmd = &hwif->cmd; - task_end_request(drive, rq, stat); + ide_finish_cmd(drive, cmd, stat); return ide_stopped; } printk(KERN_ERR "%s: %s: bad DMA status (0x%02x)\n", diff --git a/drivers/ide/ide-h8300.c b/drivers/ide/ide-h8300.c index c7883f23c66..ff8339ed59a 100644 --- a/drivers/ide/ide-h8300.c +++ b/drivers/ide/ide-h8300.c @@ -143,13 +143,13 @@ static void mm_insw(unsigned long addr, void *buf, u32 len) *bp = bswap(*(volatile u16 *)addr); } -static void h8300_input_data(ide_drive_t *drive, struct request *rq, +static void h8300_input_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf, unsigned int len) { mm_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2); } -static void h8300_output_data(ide_drive_t *drive, struct request *rq, +static void h8300_output_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf, unsigned int len) { mm_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2); diff --git a/drivers/ide/ide-io-std.c b/drivers/ide/ide-io-std.c index 570c0cc4514..2d9c6dc3f95 100644 --- a/drivers/ide/ide-io-std.c +++ b/drivers/ide/ide-io-std.c @@ -219,7 +219,7 @@ static void ata_vlb_sync(unsigned long port) * so if an odd len is specified, be sure that there's at least one * extra byte allocated for the buffer. */ -void ide_input_data(ide_drive_t *drive, struct request *rq, void *buf, +void ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf, unsigned int len) { ide_hwif_t *hwif = drive->hwif; @@ -265,7 +265,7 @@ EXPORT_SYMBOL_GPL(ide_input_data); /* * This is used for most PIO data transfers *to* the IDE interface */ -void ide_output_data(ide_drive_t *drive, struct request *rq, void *buf, +void ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf, unsigned int len) { ide_hwif_t *hwif = drive->hwif; diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 2b85c137764..d3bd93afbf2 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -54,19 +54,20 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf) } static ide_startstop_t task_no_data_intr(ide_drive_t *); -static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *); +static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct ide_cmd *); static ide_startstop_t task_in_intr(ide_drive_t *); -ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd) +ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd) { ide_hwif_t *hwif = drive->hwif; + struct ide_cmd *cmd = &hwif->cmd; struct ide_taskfile *tf = &cmd->tf; ide_handler_t *handler = NULL; const struct ide_tp_ops *tp_ops = hwif->tp_ops; const struct ide_dma_ops *dma_ops = hwif->dma_ops; - if (cmd->data_phase == TASKFILE_MULTI_IN || - cmd->data_phase == TASKFILE_MULTI_OUT) { + if (orig_cmd->data_phase == TASKFILE_MULTI_IN || + orig_cmd->data_phase == TASKFILE_MULTI_OUT) { if (!drive->mult_count) { printk(KERN_ERR "%s: multimode not set!\n", drive->name); @@ -74,10 +75,10 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd) } } - if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED) - cmd->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS; + if (orig_cmd->ftf_flags & IDE_FTFLAG_FLAGGED) + orig_cmd->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS; - memcpy(&hwif->cmd, cmd, sizeof(*cmd)); + memcpy(cmd, orig_cmd, sizeof(*cmd)); if ((cmd->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) { ide_tf_dump(drive->name, tf); @@ -91,7 +92,7 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd) case TASKFILE_OUT: tp_ops->exec_command(hwif, tf->command); ndelay(400); /* FIXME */ - return pre_task_out_intr(drive, cmd->rq); + return pre_task_out_intr(drive, cmd); case TASKFILE_MULTI_IN: case TASKFILE_IN: handler = task_in_intr; @@ -203,7 +204,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive) return stat; } -static void ide_pio_sector(ide_drive_t *drive, struct request *rq, +static void ide_pio_sector(ide_drive_t *drive, struct ide_cmd *cmd, unsigned int write) { ide_hwif_t *hwif = drive->hwif; @@ -244,9 +245,9 @@ static void ide_pio_sector(ide_drive_t *drive, struct request *rq, /* do the actual data transfer */ if (write) - hwif->tp_ops->output_data(drive, rq, buf, SECTOR_SIZE); + hwif->tp_ops->output_data(drive, cmd, buf, SECTOR_SIZE); else - hwif->tp_ops->input_data(drive, rq, buf, SECTOR_SIZE); + hwif->tp_ops->input_data(drive, cmd, buf, SECTOR_SIZE); kunmap_atomic(buf, KM_BIO_SRC_IRQ); #ifdef CONFIG_HIGHMEM @@ -254,24 +255,23 @@ static void ide_pio_sector(ide_drive_t *drive, struct request *rq, #endif } -static void ide_pio_multi(ide_drive_t *drive, struct request *rq, +static void ide_pio_multi(ide_drive_t *drive, struct ide_cmd *cmd, unsigned int write) { unsigned int nsect; nsect = min_t(unsigned int, drive->hwif->nleft, drive->mult_count); while (nsect--) - ide_pio_sector(drive, rq, write); + ide_pio_sector(drive, cmd, write); } -static void ide_pio_datablock(ide_drive_t *drive, struct request *rq, - unsigned int write) +static void ide_pio_datablock(ide_drive_t *drive, struct ide_cmd *cmd, + unsigned int write) { - struct ide_cmd *cmd = &drive->hwif->cmd; u8 saved_io_32bit = drive->io_32bit; - if (blk_fs_request(rq)) - rq->errors = 0; + if (cmd->tf_flags & IDE_TFLAG_FS) + cmd->rq->errors = 0; if (cmd->tf_flags & IDE_TFLAG_IO_16BIT) drive->io_32bit = 0; @@ -281,22 +281,21 @@ static void ide_pio_datablock(ide_drive_t *drive, struct request *rq, switch (cmd->data_phase) { case TASKFILE_MULTI_IN: case TASKFILE_MULTI_OUT: - ide_pio_multi(drive, rq, write); + ide_pio_multi(drive, cmd, write); break; default: - ide_pio_sector(drive, rq, write); + ide_pio_sector(drive, cmd, write); break; } drive->io_32bit = saved_io_32bit; } -static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq, +static ide_startstop_t task_error(ide_drive_t *drive, struct ide_cmd *cmd, const char *s, u8 stat) { - if (blk_fs_request(rq)) { + if (cmd->tf_flags & IDE_TFLAG_FS) { ide_hwif_t *hwif = drive->hwif; - struct ide_cmd *cmd = &hwif->cmd; int sectors = hwif->nsect - hwif->nleft; switch (cmd->data_phase) { @@ -323,19 +322,17 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq, return ide_error(drive, s, stat); } -void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat) +void ide_finish_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat) { - if (blk_fs_request(rq) == 0) { - struct ide_cmd *cmd = rq->special; + if ((cmd->tf_flags & IDE_TFLAG_FS) == 0) { u8 err = ide_read_error(drive); - if (cmd) - ide_complete_cmd(drive, cmd, stat, err); + ide_complete_cmd(drive, cmd, stat, err); ide_complete_rq(drive, err); return; } - ide_end_request(drive, 1, rq->nr_sectors); + ide_end_request(drive, 1, cmd->rq->nr_sectors); } /* @@ -344,11 +341,12 @@ void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat) * It might be a spurious irq (shared irq), but it might be a * command that had no output. */ -static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq, u8 stat) +static ide_startstop_t task_in_unexpected(ide_drive_t *drive, + struct ide_cmd *cmd, u8 stat) { /* Command all done? */ if (OK_STAT(stat, ATA_DRDY, ATA_BUSY)) { - task_end_request(drive, rq, stat); + ide_finish_cmd(drive, cmd, stat); return ide_stopped; } @@ -363,25 +361,25 @@ static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq static ide_startstop_t task_in_intr(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; - struct request *rq = hwif->rq; + struct ide_cmd *cmd = &drive->hwif->cmd; u8 stat = hwif->tp_ops->read_status(hwif); /* Error? */ if (stat & ATA_ERR) - return task_error(drive, rq, __func__, stat); + return task_error(drive, cmd, __func__, stat); /* Didn't want any data? Odd. */ if ((stat & ATA_DRQ) == 0) - return task_in_unexpected(drive, rq, stat); + return task_in_unexpected(drive, cmd, stat); - ide_pio_datablock(drive, rq, 0); + ide_pio_datablock(drive, cmd, 0); /* Are we done? Check status and finish transfer. */ if (!hwif->nleft) { stat = wait_drive_not_busy(drive); if (!OK_STAT(stat, 0, BAD_STAT)) - return task_error(drive, rq, __func__, stat); - task_end_request(drive, rq, stat); + return task_error(drive, cmd, __func__, stat); + ide_finish_cmd(drive, cmd, stat); return ide_stopped; } @@ -397,31 +395,31 @@ static ide_startstop_t task_in_intr(ide_drive_t *drive) static ide_startstop_t task_out_intr (ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; - struct request *rq = hwif->rq; + struct ide_cmd *cmd = &drive->hwif->cmd; u8 stat = hwif->tp_ops->read_status(hwif); if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat)) - return task_error(drive, rq, __func__, stat); + return task_error(drive, cmd, __func__, stat); /* Deal with unexpected ATA data phase. */ if (((stat & ATA_DRQ) == 0) ^ !hwif->nleft) - return task_error(drive, rq, __func__, stat); + return task_error(drive, cmd, __func__, stat); if (!hwif->nleft) { - task_end_request(drive, rq, stat); + ide_finish_cmd(drive, cmd, stat); return ide_stopped; } /* Still data left to transfer. */ - ide_pio_datablock(drive, rq, 1); + ide_pio_datablock(drive, cmd, 1); ide_set_handler(drive, &task_out_intr, WAIT_WORSTCASE, NULL); return ide_started; } -static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq) +static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, + struct ide_cmd *cmd) { - struct ide_cmd *cmd = &drive->hwif->cmd; ide_startstop_t startstop; if (ide_wait_stat(&startstop, drive, ATA_DRQ, @@ -437,7 +435,7 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq) local_irq_disable(); ide_set_handler(drive, &task_out_intr, WAIT_WORSTCASE, NULL); - ide_pio_datablock(drive, rq, 1); + ide_pio_datablock(drive, cmd, 1); return ide_started; } diff --git a/drivers/ide/q40ide.c b/drivers/ide/q40ide.c index 32f669d656a..2a43a2f4963 100644 --- a/drivers/ide/q40ide.c +++ b/drivers/ide/q40ide.c @@ -72,23 +72,23 @@ static void q40_ide_setup_ports(hw_regs_t *hw, unsigned long base, hw->chipset = ide_generic; } -static void q40ide_input_data(ide_drive_t *drive, struct request *rq, +static void q40ide_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; - 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 insw(data_addr, buf, (len + 1) / 2); raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2); } -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); diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c index d6336753bd2..ada86674462 100644 --- a/drivers/ide/scc_pata.c +++ b/drivers/ide/scc_pata.c @@ -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; diff --git a/drivers/ide/tx4938ide.c b/drivers/ide/tx4938ide.c index 947596d3620..657a61890b1 100644 --- a/drivers/ide/tx4938ide.c +++ b/drivers/ide/tx4938ide.c @@ -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; diff --git a/include/linux/ide.h b/include/linux/ide.h index f0e3618c725..1785582e1f8 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -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 *);