[PATCH] Re: Promise PDC20262 in kernel 2.4.x

[Allen Mcintosh <mcintosh@research.telcordia.com>]

I wrote:

> [Can't get Linux to boot with PDC20262 controller.  One of disks is a
> Quantum Fireball Plus.]

Malcom Mallardi posted a note around the same time describing the same
problem.  Wayne Whitney suggested that Malcom add his disk to the "problem
disk" list in pdc202xx.c, and Malcom reports that it worked.  I did the
same thing for my disk, with the same results.

I enclose two patches against the 2.4.14 kernel.  The first patch just adds
both problem disks to the list.  The second assumes that all disks in the
appropriate Quantum families are a problem.  My vote is for the second one.

Patch 1:
--- drivers/ide/pdc202xx.c.ori	Wed Nov 14 18:22:27 2001
+++ drivers/ide/pdc202xx.c	Wed Nov 14 20:57:13 2001
@@ -230,7 +230,9 @@
 	"QUANTUM FIREBALLP KA6.4",
 	"QUANTUM FIREBALLP LM20.4",
 	"QUANTUM FIREBALLP KX20.5",
+	"QUANTUM FIREBALLP KX27.3",
 	"QUANTUM FIREBALLP LM20.5",
+	"QUANTUM FIREBALLP LM30.0",
 	NULL
 };
 
Patch 2:
--- drivers/ide/pdc202xx.c.ori	Wed Nov 14 18:22:27 2001
+++ drivers/ide/pdc202xx.c	Wed Nov 14 21:20:09 2001
@@ -225,12 +225,18 @@
 
 byte pdc202xx_proc = 0;
 
+/*
+ * Problems have been reported with the following Quantum Fireball Plus drives:
+ * KA 6.4GB, KX 20.5GB, 27.3GB, LM 20.4GB, 20.5GB and 30.0GB.  Quantum's
+ * datasheets suggest that all drives in a series (KA, KX and LM) have the
+ * same design.  It seems prudent to identify them all here.
+ */
+ 
 const char *pdc_quirk_drives[] = {
 	"QUANTUM FIREBALLlct08 08",
-	"QUANTUM FIREBALLP KA6.4",
-	"QUANTUM FIREBALLP LM20.4",
-	"QUANTUM FIREBALLP KX20.5",
-	"QUANTUM FIREBALLP LM20.5",
+	"QUANTUM FIREBALLP KA",
+	"QUANTUM FIREBALLP KX",
+	"QUANTUM FIREBALLP LM",
 	NULL
 };