[Scst-svn] SF.net SVN: scst: [346] trunk/scst

[<vl...@us...>]

Revision: 346
          http://scst.svn.sourceforge.net/scst/?rev=346&view=rev
Author:   vlnb
Date:     2008-04-21 08:04:10 -0700 (Mon, 21 Apr 2008)

Log Message:
-----------
Added possibility to create virtual removable devices

Modified Paths:
--------------
    trunk/scst/README
    trunk/scst/src/dev_handlers/scst_vdisk.c

Modified: trunk/scst/README
===================================================================
--- trunk/scst/README	2008-04-21 10:45:22 UTC (rev 345)
+++ trunk/scst/README	2008-04-21 15:04:10 UTC (rev 346)
@@ -466,7 +466,10 @@
 	This mode works ideally with high-end storage HBAs and for
 	applications that either do not need caching between application
 	and disk or need the large block throughput. See also below.
-    
+
+      - REMOVABLE - with this flag set the device is reported to remote
+        initiators as removable.
+ 
     * "close NAME" - closes device "NAME".
 
     * "change NAME [PATH]" - changes a virtual CD in the VDISK CDROM.

Modified: trunk/scst/src/dev_handlers/scst_vdisk.c
===================================================================
--- trunk/scst/src/dev_handlers/scst_vdisk.c	2008-04-21 10:45:22 UTC (rev 345)
+++ trunk/scst/src/dev_handlers/scst_vdisk.c	2008-04-21 15:04:10 UTC (rev 346)
@@ -188,6 +188,7 @@
 	unsigned int nullio:1;
 	unsigned int blockio:1;
 	unsigned int cdrom_empty:1;
+	unsigned int removable:1;
 	int virt_id;
 	char name[16+1];	/* Name of virtual device,
 				   must be <= SCSI Model + 1 */
@@ -1094,7 +1095,7 @@
 
 	memset(buf, 0, sizeof(buf));
 	buf[0] = cmd->dev->handler->type;      /* type dev */
-	if (buf[0] == TYPE_ROM)
+	if ((buf[0] == TYPE_ROM) || virt_dev->removable)
 		buf[1] = 0x80;      /* removable */
 	/* Vital Product */
 	if (cmd->cdb[1] & EVPD) {
@@ -2559,6 +2560,10 @@
 			seq_printf(seq, "BIO ");
 			c += 4;
 		}
+		if (virt_dev->removable) {
+			seq_printf(seq, "RM ");
+			c += 4;
+		}
 		while (c < 16) {
 			seq_printf(seq, " ");
 			c++;
@@ -2577,7 +2582,7 @@
 	char buf[128];
 	int i, j;
 
-	i = snprintf(buf, sizeof(buf), "Registering virtual %s device %s",
+	i = snprintf(buf, sizeof(buf), "Registering virtual %s device %s ",
 		type, virt_dev->name);
 	j = i;
 
@@ -2600,6 +2605,14 @@
 		i += snprintf(&buf[i], sizeof(buf) - i, "%sNULLIO",
 			(j == i) ? "(" : ", ");
 
+	if (virt_dev->blockio)
+		i += snprintf(&buf[i], sizeof(buf) - i, "%sBLOCKIO",
+			(j == i) ? "(" : ", ");
+
+	if (virt_dev->removable)
+		i += snprintf(&buf[i], sizeof(buf) - i, "%sREMOVABLE",
+			(j == i) ? "(" : ", ");
+
 	if (j == i)
 		PRINT_INFO("%s", buf);
 	else
@@ -2759,6 +2772,10 @@
 				p += 7;
 				virt_dev->blockio = 1;
 				TRACE_DBG("%s", "BLOCKIO");
+			} else if (!strncmp("REMOVABLE", p, 9)) {
+				p += 9;
+				virt_dev->removable = 1;
+				TRACE_DBG("%s", "REMOVABLE");
 			} else {
 				PRINT_ERROR("Unknown flag \"%s\"", p);
 				res = -EINVAL;


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