mirror of
https://github.com/torvalds/linux.git
synced 2024-12-21 02:21:36 +00:00
1d3b9917df
ide_toggle_bounce did select various strange block bounce limits, including not bouncing at all as soon as an iommu is present in the system. Given that the dma_map routines now handle any required bounce buffering except for ISA DMA, and the ide code already must handle either ISA DMA or highmem at least for iommu equipped systems we can get rid of the block layer bounce limit setting entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk>
146 lines
3.8 KiB
C
146 lines
3.8 KiB
C
#include <linux/types.h>
|
|
#include <linux/string.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/export.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/ide.h>
|
|
#include <linux/bitops.h>
|
|
|
|
u64 ide_get_lba_addr(struct ide_cmd *cmd, int lba48)
|
|
{
|
|
struct ide_taskfile *tf = &cmd->tf;
|
|
u32 high, low;
|
|
|
|
low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
|
|
if (lba48) {
|
|
tf = &cmd->hob;
|
|
high = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
|
|
} else
|
|
high = tf->device & 0xf;
|
|
|
|
return ((u64)high << 24) | low;
|
|
}
|
|
EXPORT_SYMBOL_GPL(ide_get_lba_addr);
|
|
|
|
static void ide_dump_sector(ide_drive_t *drive)
|
|
{
|
|
struct ide_cmd cmd;
|
|
struct ide_taskfile *tf = &cmd.tf;
|
|
u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
|
|
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
if (lba48) {
|
|
cmd.valid.in.tf = IDE_VALID_LBA;
|
|
cmd.valid.in.hob = IDE_VALID_LBA;
|
|
cmd.tf_flags = IDE_TFLAG_LBA48;
|
|
} else
|
|
cmd.valid.in.tf = IDE_VALID_LBA | IDE_VALID_DEVICE;
|
|
|
|
ide_tf_readback(drive, &cmd);
|
|
|
|
if (lba48 || (tf->device & ATA_LBA))
|
|
printk(KERN_CONT ", LBAsect=%llu",
|
|
(unsigned long long)ide_get_lba_addr(&cmd, lba48));
|
|
else
|
|
printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam,
|
|
tf->device & 0xf, tf->lbal);
|
|
}
|
|
|
|
static void ide_dump_ata_error(ide_drive_t *drive, u8 err)
|
|
{
|
|
printk(KERN_CONT "{ ");
|
|
if (err & ATA_ABORTED)
|
|
printk(KERN_CONT "DriveStatusError ");
|
|
if (err & ATA_ICRC)
|
|
printk(KERN_CONT "%s",
|
|
(err & ATA_ABORTED) ? "BadCRC " : "BadSector ");
|
|
if (err & ATA_UNC)
|
|
printk(KERN_CONT "UncorrectableError ");
|
|
if (err & ATA_IDNF)
|
|
printk(KERN_CONT "SectorIdNotFound ");
|
|
if (err & ATA_TRK0NF)
|
|
printk(KERN_CONT "TrackZeroNotFound ");
|
|
if (err & ATA_AMNF)
|
|
printk(KERN_CONT "AddrMarkNotFound ");
|
|
printk(KERN_CONT "}");
|
|
if ((err & (ATA_BBK | ATA_ABORTED)) == ATA_BBK ||
|
|
(err & (ATA_UNC | ATA_IDNF | ATA_AMNF))) {
|
|
struct request *rq = drive->hwif->rq;
|
|
|
|
ide_dump_sector(drive);
|
|
|
|
if (rq)
|
|
printk(KERN_CONT ", sector=%llu",
|
|
(unsigned long long)blk_rq_pos(rq));
|
|
}
|
|
printk(KERN_CONT "\n");
|
|
}
|
|
|
|
static void ide_dump_atapi_error(ide_drive_t *drive, u8 err)
|
|
{
|
|
printk(KERN_CONT "{ ");
|
|
if (err & ATAPI_ILI)
|
|
printk(KERN_CONT "IllegalLengthIndication ");
|
|
if (err & ATAPI_EOM)
|
|
printk(KERN_CONT "EndOfMedia ");
|
|
if (err & ATA_ABORTED)
|
|
printk(KERN_CONT "AbortedCommand ");
|
|
if (err & ATA_MCR)
|
|
printk(KERN_CONT "MediaChangeRequested ");
|
|
if (err & ATAPI_LFS)
|
|
printk(KERN_CONT "LastFailedSense=0x%02x ",
|
|
(err & ATAPI_LFS) >> 4);
|
|
printk(KERN_CONT "}\n");
|
|
}
|
|
|
|
/**
|
|
* ide_dump_status - translate ATA/ATAPI error
|
|
* @drive: drive that status applies to
|
|
* @msg: text message to print
|
|
* @stat: status byte to decode
|
|
*
|
|
* Error reporting, in human readable form (luxurious, but a memory hog).
|
|
* Combines the drive name, message and status byte to provide a
|
|
* user understandable explanation of the device error.
|
|
*/
|
|
|
|
u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat)
|
|
{
|
|
u8 err = 0;
|
|
|
|
printk(KERN_ERR "%s: %s: status=0x%02x { ", drive->name, msg, stat);
|
|
if (stat & ATA_BUSY)
|
|
printk(KERN_CONT "Busy ");
|
|
else {
|
|
if (stat & ATA_DRDY)
|
|
printk(KERN_CONT "DriveReady ");
|
|
if (stat & ATA_DF)
|
|
printk(KERN_CONT "DeviceFault ");
|
|
if (stat & ATA_DSC)
|
|
printk(KERN_CONT "SeekComplete ");
|
|
if (stat & ATA_DRQ)
|
|
printk(KERN_CONT "DataRequest ");
|
|
if (stat & ATA_CORR)
|
|
printk(KERN_CONT "CorrectedError ");
|
|
if (stat & ATA_SENSE)
|
|
printk(KERN_CONT "Sense ");
|
|
if (stat & ATA_ERR)
|
|
printk(KERN_CONT "Error ");
|
|
}
|
|
printk(KERN_CONT "}\n");
|
|
if ((stat & (ATA_BUSY | ATA_ERR)) == ATA_ERR) {
|
|
err = ide_read_error(drive);
|
|
printk(KERN_ERR "%s: %s: error=0x%02x ", drive->name, msg, err);
|
|
if (drive->media == ide_disk)
|
|
ide_dump_ata_error(drive, err);
|
|
else
|
|
ide_dump_atapi_error(drive, err);
|
|
}
|
|
|
|
printk(KERN_ERR "%s: possibly failed opcode: 0x%02x\n",
|
|
drive->name, drive->hwif->cmd.tf.command);
|
|
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(ide_dump_status);
|