Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
sata_mv: improve warnings about Highpoint RocketRAID 23xx cards
Improve the existing boot/load time warnings from sata_mv
for Highpoint RocketRAID 23xx cards, based on new knowledge
about where the BIOS likes to overwrite sectors with metadata.
Harmless to us, but very useful for end users.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
authored by Mark Lord and committed by Jeff Garzik 4e520033 e41bd3e8
+25
-5
drivers/ata/sata_mv.c
+25
-5
drivers/ata/sata_mv.c
···
2506
if (pdev->vendor == PCI_VENDOR_ID_TTI &&
2507
(pdev->device == 0x2300 || pdev->device == 0x2310))
2508
{
2509
-
printk(KERN_WARNING "sata_mv: Highpoint RocketRAID BIOS"
2510
-
" will CORRUPT DATA on attached drives when"
2511
-
" configured as \"Legacy\". BEWARE!\n");
2512
-
printk(KERN_WARNING "sata_mv: Use BIOS \"JBOD\" volumes"
2513
-
" instead for safety.\n");
2514
}
2515
case chip_6042:
2516
hpriv->ops = &mv6xxx_ops;
···
2506
if (pdev->vendor == PCI_VENDOR_ID_TTI &&
2507
(pdev->device == 0x2300 || pdev->device == 0x2310))
2508
{
2509
+
/*
2510
+
* Highpoint RocketRAID PCIe 23xx series cards:
2511
+
*
2512
+
* Unconfigured drives are treated as "Legacy"
2513
+
* by the BIOS, and it overwrites sector 8 with
2514
+
* a "Lgcy" metadata block prior to Linux boot.
2515
+
*
2516
+
* Configured drives (RAID or JBOD) leave sector 8
2517
+
* alone, but instead overwrite a high numbered
2518
+
* sector for the RAID metadata. This sector can
2519
+
* be determined exactly, by truncating the physical
2520
+
* drive capacity to a nice even GB value.
2521
+
*
2522
+
* RAID metadata is at: (dev->n_sectors & ~0xfffff)
2523
+
*
2524
+
* Warn the user, lest they think we're just buggy.
2525
+
*/
2526
+
printk(KERN_WARNING DRV_NAME ": Highpoint RocketRAID"
2527
+
" BIOS CORRUPTS DATA on all attached drives,"
2528
+
" regardless of if/how they are configured."
2529
+
" BEWARE!\n");
2530
+
printk(KERN_WARNING DRV_NAME ": For data safety, do not"
2531
+
" use sectors 8-9 on \"Legacy\" drives,"
2532
+
" and avoid the final two gigabytes on"
2533
+
" all RocketRAID BIOS initialized drives.\n");
2534
}
2535
case chip_6042:
2536
hpriv->ops = &mv6xxx_ops;