d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Compensate for off by one bugs in disk firmware for 48BIT addressing cutover.

Browse Source
This commit is contained in:
Søren Schmidt 2004-12-09 07:31:06 +00:00
parent 067a8bab8a
commit 241ce89e8c
4 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/dev/ata/ata-all.h
View File

@ -156,6 +156,8 @@
#define ATA_OP_CONTINUES 0
#define ATA_OP_FINISHED 1
#define ATA_MAX_28BIT_LBA 268435455
/* ATAPI request sense structure */
struct atapi_sense {
u_int8_t error_code :7; /* current or deferred errors */

2
sys/dev/ata/ata-chipset.c
View File

@ -1815,7 +1815,7 @@ ata_promise_apkt(u_int8_t *bytep, struct ata_device *atadev, u_int8_t command,
bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
bytep[i++] = ATA_A_4BIT;
if ((lba > 268435455 || count > 256) && atadev->param &&
if ((lba >= ATA_MAX_28BIT_LBA || count > 256) && atadev->param &&
(atadev->param->support.command2 & ATA_SUPPORT_ADDRESS48)) {
atadev->channel->flags |= ATA_48BIT_ACTIVE;
if (command == ATA_READ_DMA)

2
sys/dev/ata/ata-disk.c
View File

@ -114,7 +114,7 @@ ad_attach(struct ata_device *atadev)
/* use the 48bit LBA size if valid */
if ((atadev->param->support.command2 & ATA_SUPPORT_ADDRESS48) &&
lbasize48 > 268435455)
lbasize48 > ATA_MAX_28BIT_LBA)
adp->total_secs = lbasize48;
/* setup the function ptrs */

2
sys/dev/ata/ata-lowlevel.c
View File

@ -701,7 +701,7 @@ ata_generic_command(struct ata_device *atadev, u_int8_t command,
ATA_IDX_OUTB(atadev->channel, ATA_ALTSTAT, ATA_A_4BIT);
/* only use 48bit addressing if needed (avoid bugs and overhead) */
if ((lba > 268435455 || count > 256) && atadev->param &&
if ((lba >= ATA_MAX_28BIT_LBA || count > 256) && atadev->param &&
atadev->param->support.command2 & ATA_SUPPORT_ADDRESS48) {
/* translate command into 48bit version */