diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ata.h | 12 | ||||
| -rw-r--r-- | include/linux/libata.h | 1 |
2 files changed, 12 insertions, 1 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h index b666b77..fed3641 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -704,9 +704,19 @@ static inline bool ata_id_wcache_enabled(const u16 *id) static inline bool ata_id_has_read_log_dma_ext(const u16 *id) { + /* Word 86 must have bit 15 set */ if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) return false; - return id[ATA_ID_COMMAND_SET_3] & (1 << 3); + + /* READ LOG DMA EXT support can be signaled either from word 119 + * or from word 120. The format is the same for both words: Bit + * 15 must be cleared, bit 14 set and bit 3 set. + */ + if ((id[ATA_ID_COMMAND_SET_3] & 0xC008) == 0x4008 || + (id[ATA_ID_COMMAND_SET_4] & 0xC008) == 0x4008) + return true; + + return false; } static inline bool ata_id_has_sense_reporting(const u16 *id) diff --git a/include/linux/libata.h b/include/linux/libata.h index 51cb312..36ce37b 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -430,6 +430,7 @@ enum { ATA_HORKAGE_NOLPM = (1 << 20), /* don't use LPM */ ATA_HORKAGE_WD_BROKEN_LPM = (1 << 21), /* some WDs have broken LPM */ ATA_HORKAGE_ZERO_AFTER_TRIM = (1 << 22),/* guarantees zero after trim */ + ATA_HORKAGE_NO_NCQ_LOG = (1 << 23), /* don't use NCQ for log read */ /* DMA mask for user DMA control: User visible values; DO NOT renumber */ |