From b56c4eaa3fbecaca7544dd30513a7362e61acbf6 Mon Sep 17 00:00:00 2001
From: robertmh <robertmh@localhost>
Date: Wed, 7 May 2008 20:28:26 +0000
Subject: [PATCH] 2008-05-07  Robert Millan  <rmh@aybabtu.com>

        * util/biosdisk.c (linux_find_partition, get_os_disk): Handle CCISS
        devices.
        * util/grub-mkdevicemap.c (get_cciss_disk_name)
        (make_device_map): Likewise.
        Reported by Roland Dreier <rdreier@cisco.com>
---
 ChangeLog               |  8 ++++++++
 util/biosdisk.c         | 25 ++++++++++++++++++++++++-
 util/grub-mkdevicemap.c | 30 ++++++++++++++++++++++++++++++
 3 files changed, 62 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 8dfa07b21..7570f79b1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2008-05-07  Robert Millan  <rmh@aybabtu.com>
+
+	* util/biosdisk.c (linux_find_partition, get_os_disk): Handle CCISS
+	devices.
+	* util/grub-mkdevicemap.c (get_cciss_disk_name)
+	(make_device_map): Likewise.
+	Reported by Roland Dreier <rdreier@cisco.com>
+
 2008-05-07  Robert Millan  <rmh@aybabtu.com>
 
 	* disk/lvm.c (grub_lvm_scan_device): Detect errors in an additional
diff --git a/util/biosdisk.c b/util/biosdisk.c
index e6e7f51ed..3b8b9e089 100644
--- a/util/biosdisk.c
+++ b/util/biosdisk.c
@@ -233,7 +233,7 @@ linux_find_partition (char *dev, unsigned long sector)
       p = real_dev + 8;
       format = "%d";
     }
-  else if (strncmp (real_dev + 5, "rd/c", 4) == 0)
+  else if (strncmp (real_dev + 5, "rd/c", 4) == 0)	/* dac960 */
     {
       p = strchr (real_dev + 9, 'd');
       if (! p)
@@ -243,6 +243,18 @@ linux_find_partition (char *dev, unsigned long sector)
       while (*p && isdigit (*p))
 	p++;
 
+      format = "p%d";
+    }
+  else if (strncmp (real_dev + 5, "cciss/c", sizeof("cciss/c")-1) == 0)
+    {
+      p = strchr (real_dev + 5 + sizeof("cciss/c")-1, 'd');
+      if (! p)
+	return 0;
+
+      p++;
+      while (*p && isdigit (*p))
+	p++;
+
       format = "p%d";
     }
   else
@@ -645,6 +657,17 @@ get_os_disk (const char *os_dev)
 	  return path;
 	}
       
+      /* If this is a CCISS disk.  */
+      if (strncmp ("cciss/c", p, sizeof ("cciss/c") - 1) == 0)
+	{
+	  /* /dev/cciss/c[0-9]+d[0-9]+(p[0-9]+)? */
+	  p = strchr (p, 'p');
+	  if (p)
+	    *p = '\0';
+
+	  return path;
+	}
+      
       /* If this is an IDE disk or a SCSI disk.  */
       if ((strncmp ("hd", p, 2) == 0
 	   || strncmp ("sd", p, 2) == 0)
diff --git a/util/grub-mkdevicemap.c b/util/grub-mkdevicemap.c
index 174215efb..12729812a 100644
--- a/util/grub-mkdevicemap.c
+++ b/util/grub-mkdevicemap.c
@@ -283,6 +283,12 @@ get_i2o_disk_name (char *name, char unit)
 {
   sprintf (name, "/dev/i2o/hd%c", unit);
 }
+
+static void
+get_cciss_disk_name (char *name, int controller, int drive)
+{
+  sprintf (name, "/dev/cciss/c%dd%d", controller, drive);
+}
 #endif
 
 /* Check if DEVICE can be read. If an error occurs, return zero,
@@ -504,6 +510,30 @@ make_device_map (const char *device_map, int floppy_disks)
       }
   }
     
+  /* This is for CCISS - we have
+     /dev/cciss/c<controller>d<logical drive>p<partition>.  */
+  {
+    int controller, drive;
+    
+    for (controller = 0; controller < 3; controller++)
+      {
+	for (drive = 0; drive < 10; drive++)
+	  {
+	    char name[24];
+	    
+	    get_cciss_disk_name (name, controller, drive);
+	    if (check_device (name))
+	      {
+		char *p;
+		p = grub_util_get_disk_name (num_hd, name);
+		fprintf (fp, "(%s)\t%s\n", p, name);
+		free (p);
+		num_hd++;
+	      }
+	  }
+      }
+  }
+    
   /* This is for I2O - we have /dev/i2o/hd<logical drive><partition> */
   {
     char unit;