diff options
Diffstat (limited to 'drivers/ide/ide-dma.c')
| -rw-r--r-- | drivers/ide/ide-dma.c | 39 |
1 files changed, 22 insertions, 17 deletions
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index a878f4734f81..3dbf80c15491 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -96,9 +96,13 @@ 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); + if ((cmd->tf_flags & IDE_TFLAG_FS) == 0) + ide_finish_cmd(drive, cmd, stat); + else + ide_complete_rq(drive, 0, + cmd->rq->nr_sectors << 9); return ide_stopped; } printk(KERN_ERR "%s: %s: bad DMA status (0x%02x)\n", @@ -106,7 +110,6 @@ ide_startstop_t ide_dma_intr(ide_drive_t *drive) } return ide_error(drive, "dma_intr", stat); } -EXPORT_SYMBOL_GPL(ide_dma_intr); int ide_dma_good_drive(ide_drive_t *drive) { @@ -116,7 +119,7 @@ int ide_dma_good_drive(ide_drive_t *drive) /** * ide_build_sglist - map IDE scatter gather for DMA I/O * @drive: the drive to build the DMA table for - * @rq: the request holding the sg list + * @cmd: command * * Perform the DMA mapping magic necessary to access the source or * target buffers of a request via DMA. The lower layers of the @@ -124,28 +127,29 @@ int ide_dma_good_drive(ide_drive_t *drive) * operate in a portable fashion. */ -int ide_build_sglist(ide_drive_t *drive, struct request *rq) +int ide_build_sglist(ide_drive_t *drive, struct ide_cmd *cmd) { ide_hwif_t *hwif = drive->hwif; struct scatterlist *sg = hwif->sg_table; int i; - ide_map_sg(drive, rq); + ide_map_sg(drive, cmd); - if (rq_data_dir(rq) == READ) - hwif->sg_dma_direction = DMA_FROM_DEVICE; + if (cmd->tf_flags & IDE_TFLAG_WRITE) + cmd->sg_dma_direction = DMA_TO_DEVICE; else - hwif->sg_dma_direction = DMA_TO_DEVICE; - - i = dma_map_sg(hwif->dev, sg, hwif->sg_nents, hwif->sg_dma_direction); - if (i) { - hwif->orig_sg_nents = hwif->sg_nents; - hwif->sg_nents = i; + cmd->sg_dma_direction = DMA_FROM_DEVICE; + + i = dma_map_sg(hwif->dev, sg, cmd->sg_nents, cmd->sg_dma_direction); + if (i == 0) + ide_map_sg(drive, cmd); + else { + cmd->orig_sg_nents = cmd->sg_nents; + cmd->sg_nents = i; } return i; } -EXPORT_SYMBOL_GPL(ide_build_sglist); /** * ide_destroy_dmatable - clean up DMA mapping @@ -161,9 +165,10 @@ EXPORT_SYMBOL_GPL(ide_build_sglist); void ide_destroy_dmatable(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; + struct ide_cmd *cmd = &hwif->cmd; - dma_unmap_sg(hwif->dev, hwif->sg_table, hwif->orig_sg_nents, - hwif->sg_dma_direction); + dma_unmap_sg(hwif->dev, hwif->sg_table, cmd->orig_sg_nents, + cmd->sg_dma_direction); } EXPORT_SYMBOL_GPL(ide_destroy_dmatable); |