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authorAlan Cox <alan@lxorguk.ukuu.org.uk>2007-04-11 00:23:13 +0100
committerJeff Garzik <jeff@garzik.org>2007-04-28 14:16:06 -0400
commit1e999736cafdffc374f22eed37b291129ef82e4e (patch)
treed71e0907827841de66f172dec0cc4d550bd2cec8 /include
parent6bfff31e77cfa1b13490337e5a4dbaa3407e83ac (diff)
downloadop-kernel-dev-1e999736cafdffc374f22eed37b291129ef82e4e.zip
op-kernel-dev-1e999736cafdffc374f22eed37b291129ef82e4e.tar.gz
libata: HPA support
Signed-off-by: Alan Cox <alan@redhat.com> Add support for ignoring the BIOS HPA result (off by default) and setting the disk to the full available size unless already frozen. Tested with various platforms/disks and confirmed to work with the Macintosh (which broke earlier) and ata_piix (breakage due to the LBA48 readback that Tejun fixed). For normal users this brings us, I believe, to feature parity with old IDE (and of course more featured in some areas too). Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/ata.h2
-rw-r--r--include/linux/libata.h1
2 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index ffb6cdc..f4dc8df 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -159,6 +159,8 @@ enum {
ATA_CMD_INIT_DEV_PARAMS = 0x91,
ATA_CMD_READ_NATIVE_MAX = 0xF8,
ATA_CMD_READ_NATIVE_MAX_EXT = 0x27,
+ ATA_CMD_SET_MAX = 0xF9,
+ ATA_CMD_SET_MAX_EXT = 0x37,
ATA_CMD_READ_LOG_EXT = 0x2f,
/* READ_LOG_EXT pages */
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 7c14a52..73b86dd 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -446,6 +446,7 @@ struct ata_device {
struct scsi_device *sdev; /* attached SCSI device */
/* n_sector is used as CLEAR_OFFSET, read comment above CLEAR_OFFSET */
u64 n_sectors; /* size of device, if ATA */
+ u64 n_sectors_boot; /* size of ATA device at startup */
unsigned int class; /* ATA_DEV_xxx */
u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */
u8 pio_mode;
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