From 7252c851af46085b7c23b0be237f74e57ad06a87 Mon Sep 17 00:00:00 2001
From: Markus Armbruster <armbru@redhat.com>
Date: Tue, 4 Oct 2011 16:24:13 +0200
Subject: [PATCH 38/76] scsi-disk: Remove 'drive_kind'

RH-Author: Markus Armbruster <armbru@redhat.com>
Message-id: <1317745491-18401-31-git-send-email-armbru@redhat.com>
Patchwork-id: 33633
O-Subject: [PATCH RHEL-6.2 qemu-kvm 30/68] scsi-disk: Remove 'drive_kind'
Bugzilla: 742458
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Amit Shah <amit.shah@redhat.com>
RH-Acked-by: Juan Quintela <quintela@redhat.com>

From: Hannes Reinecke <hare@suse.de>

Instead of using its own definitions scsi-disk should
be using the device type of the parent device.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit f37bd73b76e7f1e300e6acfe1bb6d3b2bc63714b)

Conflicts:

	hw/scsi-disk.c

Conflicts because we don't have commit 95b5edcd blockdev: Store -drive
option media in DriveInfo, and because we have commit 94b66581
scsi-disk: fix build, disable cdrom emulation.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 hw/scsi-defs.h |    6 +++++-
 hw/scsi-disk.c |   50 ++++++++++++++++++++++++--------------------------
 2 files changed, 29 insertions(+), 27 deletions(-)

Signed-off-by: Michal Novotny <minovotn@redhat.com>
---
 hw/scsi-defs.h |    6 +++++-
 hw/scsi-disk.c |   50 ++++++++++++++++++++++++--------------------------
 2 files changed, 29 insertions(+), 27 deletions(-)

diff --git a/hw/scsi-defs.h b/hw/scsi-defs.h
index f644860..27010b7 100644
--- a/hw/scsi-defs.h
+++ b/hw/scsi-defs.h
@@ -164,6 +164,7 @@
 
 #define TYPE_DISK           0x00
 #define TYPE_TAPE           0x01
+#define TYPE_PRINTER        0x02
 #define TYPE_PROCESSOR      0x03    /* HP scanners use this */
 #define TYPE_WORM           0x04    /* Treated as ROM by our system */
 #define TYPE_ROM            0x05
@@ -171,6 +172,9 @@
 #define TYPE_MOD            0x07    /* Magneto-optical disk -
 				     * - treated as TYPE_DISK */
 #define TYPE_MEDIUM_CHANGER 0x08
-#define TYPE_ENCLOSURE	    0x0d    /* Enclosure Services Device */
+#define TYPE_STORAGE_ARRAY  0x0c    /* Storage array device */
+#define TYPE_ENCLOSURE      0x0d    /* Enclosure Services Device */
+#define TYPE_RBC            0x0e    /* Simplified Direct-Access Device */
+#define TYPE_OSD            0x11    /* Object-storage Device */
 #define TYPE_NO_LUN         0x7f
 
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index f4d67df..5d0cfff 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -60,8 +60,6 @@ typedef struct SCSIDiskReq {
     BlockAcctCookie acct;
 } SCSIDiskReq;
 
-typedef enum { SCSI_HD, SCSI_CD } SCSIDriveKind;
-
 struct SCSIDiskState
 {
     SCSIDevice qdev;
@@ -75,7 +73,6 @@ struct SCSIDiskState
     char *version;
     char *serial;
     SCSISense sense;
-    SCSIDriveKind drive_kind;
 };
 
 static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type);
@@ -393,7 +390,7 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf)
             return -1;
         }
 
-        if (s->drive_kind == SCSI_CD) {
+        if (s->qdev.type == TYPE_ROM) {
             outbuf[buflen++] = 5;
         } else {
             outbuf[buflen++] = 0;
@@ -412,7 +409,7 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf)
             if (s->serial)
                 outbuf[buflen++] = 0x80; // unit serial number
             outbuf[buflen++] = 0x83; // device identification
-            if (s->drive_kind == SCSI_HD) {
+            if (s->qdev.type == TYPE_DISK) {
                 outbuf[buflen++] = 0xb0; // block limits
                 outbuf[buflen++] = 0xb2; // thin provisioning
             }
@@ -471,7 +468,7 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf)
             unsigned int opt_io_size =
                     s->qdev.conf.opt_io_size / s->qdev.blocksize;
 
-            if (s->drive_kind == SCSI_CD) {
+            if (s->qdev.type == TYPE_ROM) {
                 DPRINTF("Inquiry (EVPD[%02X] not supported for CDROM\n",
                         page_code);
                 return -1;
@@ -541,12 +538,11 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf)
         return buflen;
     }
 
-    if (s->drive_kind == SCSI_CD) {
-        outbuf[0] = 5;
+    outbuf[0] = s->qdev.type & 0x1f;
+    if (s->qdev.type == TYPE_ROM) {
         outbuf[1] = 0x80;
         memcpy(&outbuf[16], "QEMU CD-ROM     ", 16);
     } else {
-        outbuf[0] = 0;
         outbuf[1] = s->removable ? 0x80 : 0;
         memcpy(&outbuf[16], "QEMU HARDDISK   ", 16);
     }
@@ -672,7 +668,7 @@ static int mode_sense_page(SCSIRequest *req, int page, uint8_t *p,
         return p[1] + 2;
 
     case 0x2a: /* CD Capabilities and Mechanical Status page. */
-        if (s->drive_kind != SCSI_CD)
+        if (s->qdev.type != TYPE_ROM)
             return 0;
         p[0] = 0x2a;
         p[1] = 0x14;
@@ -888,7 +884,7 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf)
             goto illegal_request;
         break;
     case START_STOP:
-        if (s->drive_kind == SCSI_CD && (req->cmd.buf[4] & 2)) {
+        if (s->qdev.type == TYPE_ROM && (req->cmd.buf[4] & 2)) {
             /* load/eject medium */
             bdrv_eject(s->bs, !(req->cmd.buf[4] & 1));
         }
@@ -1200,12 +1196,12 @@ static void scsi_destroy(SCSIDevice *dev)
     blockdev_mark_auto_del(s->qdev.conf.bs);
 }
 
-static int scsi_initfn(SCSIDevice *dev, SCSIDriveKind kind)
+static int scsi_initfn(SCSIDevice *dev, uint8_t scsi_type)
 {
     SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev);
     DriveInfo *dinfo;
 
-    if (kind == SCSI_CD) {
+    if (scsi_type == TYPE_ROM) {
         error_report("scsi-disk: cdrom emulation is not supported");
         return -1;
     }
@@ -1215,9 +1211,8 @@ static int scsi_initfn(SCSIDevice *dev, SCSIDriveKind kind)
         return -1;
     }
     s->bs = s->qdev.conf.bs;
-    s->drive_kind = kind;
 
-    if (kind == SCSI_HD && !bdrv_is_inserted(s->bs)) {
+    if (scsi_type == TYPE_DISK && !bdrv_is_inserted(s->bs)) {
         error_report("Device needs media, but drive is empty");
         return -1;
     }
@@ -1239,43 +1234,46 @@ static int scsi_initfn(SCSIDevice *dev, SCSIDriveKind kind)
         return -1;
     }
 
-    if (kind == SCSI_CD) {
+    if (scsi_type == TYPE_ROM) {
         s->qdev.blocksize = 2048;
-    } else {
+    } else if (scsi_type == TYPE_DISK) {
         s->qdev.blocksize = s->qdev.conf.logical_block_size;
+    } else {
+        error_report("scsi-disk: Unhandled SCSI type %02x", scsi_type);
+        return -1;
     }
     s->cluster_size = s->qdev.blocksize / 512;
     s->bs->buffer_alignment = s->qdev.blocksize;
 
-    s->qdev.type = TYPE_DISK;
+    s->qdev.type = scsi_type;
     qemu_add_vm_change_state_handler(scsi_dma_restart_cb, s);
-    bdrv_set_removable(s->bs, kind == SCSI_CD);
+    bdrv_set_removable(s->bs, scsi_type == TYPE_ROM);
     add_boot_device_path(s->qdev.conf.bootindex, &dev->qdev, ",0");
     return 0;
 }
 
 static int scsi_hd_initfn(SCSIDevice *dev)
 {
-    return scsi_initfn(dev, SCSI_HD);
+    return scsi_initfn(dev, TYPE_DISK);
 }
 
 static int scsi_cd_initfn(SCSIDevice *dev)
 {
-    return scsi_initfn(dev, SCSI_CD);
+    return scsi_initfn(dev, TYPE_ROM);
 }
 
 static int scsi_disk_initfn(SCSIDevice *dev)
 {
-    SCSIDriveKind kind;
+    uint8_t scsi_type;
 
     if (!dev->conf.bs) {
-        kind = SCSI_HD;         /* will die in scsi_initfn() */
+        scsi_type = TYPE_DISK;  /* will die in scsi_initfn() */
     } else {
-        kind = bdrv_get_type_hint(dev->conf.bs) == BDRV_TYPE_CDROM
-            ? SCSI_CD : SCSI_HD;
+        scsi_type = bdrv_get_type_hint(dev->conf.bs) == BDRV_TYPE_CDROM
+            ? TYPE_ROM : TYPE_DISK;
     }
 
-    return scsi_initfn(dev, kind);
+    return scsi_initfn(dev, scsi_type);
 }
 
 #define DEFINE_SCSI_DISK_PROPERTIES()                           \
-- 
1.7.4.4