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| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-04 15:44:40 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-04 15:44:40 (GMT) |
| commit | bb4899dbef2650288d20251a736243472f050d8b (patch) | |
| tree | dde7f4d5f1c465fee1d39eecb9151e65280ce06b /drivers/ata/libata-core.c | |
| parent | 36e337d0244ddcf4317f7d7c1144b9adfc8e5e3a (diff) | |
| parent | 6f23a31d1cbe791a1ce86ffa9b23251ab0a1ef45 (diff) | |
| download | linux-fsl-qoriq-bb4899dbef2650288d20251a736243472f050d8b.tar.xz | |
Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: Limit ATAPI DMA to R/W commands only for TORiSAN DVD drives (take 3)
libata: Limit max sector to 128 for TORiSAN DVD drives (take 3)
libata: Clear tf before doing request sense (take 3)
libata: reorder HSM_ST_FIRST for easier decoding (take 3)
libata bugfix: preserve LBA bit for HDIO_DRIVE_TASK
2.6.21 fix lba48 bug in libata fill_result_tf()
Diffstat (limited to 'drivers/ata/libata-core.c')
| -rw-r--r-- | drivers/ata/libata-core.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 87b47bd..0abd72d 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -1784,6 +1784,13 @@ int ata_dev_configure(struct ata_device *dev) dev->max_sectors = ATA_MAX_SECTORS; } + if (ata_device_blacklisted(dev) & ATA_HORKAGE_MAX_SEC_128) + dev->max_sectors = min(ATA_MAX_SECTORS_128, dev->max_sectors); + + /* limit ATAPI DMA to R/W commands only */ + if (ata_device_blacklisted(dev) & ATA_HORKAGE_DMA_RW_ONLY) + dev->horkage |= ATA_HORKAGE_DMA_RW_ONLY; + if (ap->ops->dev_config) ap->ops->dev_config(ap, dev); @@ -3352,6 +3359,10 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { { "_NEC DV5800A", NULL, ATA_HORKAGE_NODMA }, { "SAMSUNG CD-ROM SN-124","N001", ATA_HORKAGE_NODMA }, + /* Weird ATAPI devices */ + { "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 | + ATA_HORKAGE_DMA_RW_ONLY }, + /* Devices we expect to fail diagnostics */ /* Devices where NCQ should be avoided */ @@ -3679,6 +3690,26 @@ int ata_check_atapi_dma(struct ata_queued_cmd *qc) struct ata_port *ap = qc->ap; int rc = 0; /* Assume ATAPI DMA is OK by default */ + /* some drives can only do ATAPI DMA on read/write */ + if (unlikely(qc->dev->horkage & ATA_HORKAGE_DMA_RW_ONLY)) { + struct scsi_cmnd *cmd = qc->scsicmd; + u8 *scsicmd = cmd->cmnd; + + switch (scsicmd[0]) { + case READ_10: + case WRITE_10: + case READ_12: + case WRITE_12: + case READ_6: + case WRITE_6: + /* atapi dma maybe ok */ + break; + default: + /* turn off atapi dma */ + return 1; + } + } + if (ap->ops->check_atapi_dma) rc = ap->ops->check_atapi_dma(qc); @@ -4722,8 +4753,8 @@ static void fill_result_tf(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; - ap->ops->tf_read(ap, &qc->result_tf); qc->result_tf.flags = qc->tf.flags; + ap->ops->tf_read(ap, &qc->result_tf); } /** |