Hello.
Bartlomiej Zolnierkiewicz wrote:
* Move ide_in_drive_list() from ide-dma.c to ide-iops.c.
* Add ivb_list[] table for listening early UDMA66 devices which don't conform
to ATA4 standard wrt cable detection (bit14 is zero, only bit13 is valid)
and use only device side cable detection for them since host side cable
detection may be unreliable.
* Add model "QUANTUM FIREBALLlct10 05" with firwmare "A03.0900" to the list
(from Craig's bugreport).
v2:
* Improve kernel message basing on suggestion from Sergei.
Thanks to Craig for testing this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Index: b/drivers/ide/ide-iops.c
===================================================================
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -565,6 +565,34 @@ int ide_wait_stat (ide_startstop_t *star
EXPORT_SYMBOL(ide_wait_stat);
+/**
+ * ide_in_drive_list - look for drive in black/white list
+ * @id: drive identifier
+ * @drive_table: list to inspect
+ *
+ * Look for a drive in the blacklist and the whitelist tables
+ * Returns 1 if the drive is found in the table.
+ */
+
+int ide_in_drive_list(struct hd_driveid *id, const struct drive_list_entry *drive_table)
+{
+ for ( ; drive_table->id_model ; drive_table++)
Good time to kill an extra space before the 2nd semicolon.
+ if ((!strcmp(drive_table->id_model, id->model)) &&
+ (!drive_table->id_firmware ||
+ strstr(id->fw_rev, drive_table->id_firmware)))
+ return 1;
+ return 0;
+}
+
+/*
+ * Early UDMA66 devices don't set bit14 to 1, only bit13 is valid.
+ * We list them here and depend on the device side cable detection for them.
+ */
+static const struct drive_list_entry ivb_list[] = {
+ { "QUANTUM FIREBALLlct10 05" , "A03.0900" },
+ { NULL , NULL }
+};
+
/*
* All hosts that use the 80c ribbon must use!
* The name is derived from upper byte of word 93 and the 80c ribbon.
@@ -573,11 +601,16 @@ u8 eighty_ninty_three (ide_drive_t *driv
{
ide_hwif_t *hwif = drive->hwif;
struct hd_driveid *id = drive->id;
+ int ivb = ide_in_drive_list(id, ivb_list);
+
+ if (ivb)
+ printk(KERN_DEBUG "%s: ignoring word 93 validity check\n",
+ drive->name);
I think "skipping" woud sound better.
if (hwif->cbl == ATA_CBL_PATA40_SHORT)
return 1;
Wait, shouldn't this check come ahead of all the other code since we're
basically overriding every other check with it?
- if (hwif->cbl != ATA_CBL_PATA80)
+ if (hwif->cbl != ATA_CBL_PATA80 && !ivb)
goto no_80w;
/* Check for SATA but only if we are ATA5 or higher */
@@ -587,11 +620,11 @@ u8 eighty_ninty_three (ide_drive_t *driv
/*
* FIXME:
* - change master/slave IDENTIFY order
- * - force bit13 (80c cable present) check
+ * - force bit13 (80c cable present) check also for !ivb devices
* (unless the slave device is pre-ATA3)
*/
#ifndef CONFIG_IDEDMA_IVB
- if (id->hw_config & 0x4000)
+ if ((id->hw_config & 0x4000) || (ivb && (id->hw_config & 0x2000)))
#else
if (id->hw_config & 0x6000)
#endif
WBR, Sergei
-
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