[Qemu-devel] [PATCH] IDE SEEK_STAT flag

[Samuel Thibault]

Add SEEK_STAT in all non-error cases except sleep request, since our
seek times are virtually 0.  Although this flag is deprecated by newer
ATA standards, Linux at least checks it for CD drives, and would timeout
in some case if we do not set it.

Signed-off-by: Samuel Thibault <address@hidden>

Index: hw/ide.c
===================================================================
--- hw/ide.c    (révision 4992)
+++ hw/ide.c    (copie de travail)
@@ -1048,7 +1048,7 @@
 static void ide_atapi_cmd_ok(IDEState *s)
 {
     s->error = 0;
-    s->status = READY_STAT;
+    s->status = READY_STAT | SEEK_STAT;
     s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
     ide_set_irq(s);
 }
@@ -1162,7 +1162,7 @@
     if (s->packet_transfer_size <= 0) {
         /* end of transfer */
         ide_transfer_stop(s);
-        s->status = READY_STAT;
+        s->status = READY_STAT | SEEK_STAT;
         s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | 
ATAPI_INT_REASON_CD;
         ide_set_irq(s);
 #ifdef DEBUG_IDE_ATAPI
@@ -1240,10 +1240,10 @@
     s->io_buffer_index = 0;
 
     if (s->atapi_dma) {
-       s->status = READY_STAT | DRQ_STAT;
+       s->status = READY_STAT | SEEK_STAT | DRQ_STAT;
        ide_dma_start(s, ide_atapi_cmd_read_dma_cb);
     } else {
-       s->status = READY_STAT;
+       s->status = READY_STAT | SEEK_STAT;
        ide_atapi_cmd_reply_end(s);
     }
 }
@@ -1258,7 +1258,7 @@
     s->io_buffer_index = sector_size;
     s->cd_sector_size = sector_size;
 
-    s->status = READY_STAT;
+    s->status = READY_STAT | SEEK_STAT;
     ide_atapi_cmd_reply_end(s);
 }
 
@@ -1299,7 +1299,7 @@
     }
 
     if (s->packet_transfer_size <= 0) {
-        s->status = READY_STAT;
+        s->status = READY_STAT | SEEK_STAT;
         s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | 
ATAPI_INT_REASON_CD;
         ide_set_irq(s);
     eot:
@@ -1349,7 +1349,7 @@
     s->cd_sector_size = sector_size;
 
     /* XXX: check if BUSY_STAT should be set */
-    s->status = READY_STAT | DRQ_STAT | BUSY_STAT;
+    s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
     ide_dma_start(s, ide_atapi_cmd_read_dma_cb);
 }
 
@@ -2067,14 +2067,14 @@
             if (s->is_cf && s->nsector == 0) {
                 /* Disable Read and Write Multiple */
                 s->mult_sectors = 0;
-                s->status = READY_STAT;
+                s->status = READY_STAT | SEEK_STAT;
             } else if ((s->nsector & 0xff) != 0 &&
                 ((s->nsector & 0xff) > MAX_MULT_SECTORS ||
                  (s->nsector & (s->nsector - 1)) != 0)) {
                 ide_abort_command(s);
             } else {
                 s->mult_sectors = s->nsector & 0xff;
-                s->status = READY_STAT;
+                s->status = READY_STAT | SEEK_STAT;
             }
             ide_set_irq(s);
             break;
@@ -2084,7 +2084,7 @@
         case WIN_VERIFY_ONCE:
             /* do sector number check ? */
            ide_cmd_lba48_transform(s, lba48);
-            s->status = READY_STAT;
+            s->status = READY_STAT | SEEK_STAT;
             ide_set_irq(s);
             break;
        case WIN_READ_EXT:
@@ -2159,13 +2159,13 @@
         case WIN_READ_NATIVE_MAX:
            ide_cmd_lba48_transform(s, lba48);
             ide_set_sector(s, s->nb_sectors - 1);
-            s->status = READY_STAT;
+            s->status = READY_STAT | SEEK_STAT;
             ide_set_irq(s);
             break;
         case WIN_CHECKPOWERMODE1:
         case WIN_CHECKPOWERMODE2:
             s->nsector = 0xff; /* device active or idle */
-            s->status = READY_STAT;
+            s->status = READY_STAT | SEEK_STAT;
             ide_set_irq(s);
             break;
         case WIN_SETFEATURES:
@@ -2230,7 +2230,7 @@
         case WIN_FLUSH_CACHE_EXT:
             if (s->bs)
                 bdrv_flush(s->bs);
-           s->status = READY_STAT;
+           s->status = READY_STAT | SEEK_STAT;
             ide_set_irq(s);
             break;
         case WIN_STANDBY:
@@ -2259,7 +2259,7 @@
             break;
         case WIN_DIAGNOSE:
             ide_set_signature(s);
-            s->status = READY_STAT;
+            s->status = READY_STAT | SEEK_STAT;
             s->error = 0x01;
             ide_set_irq(s);
             break;
@@ -2276,7 +2276,7 @@
             /* overlapping commands not supported */
             if (s->feature & 0x02)
                 goto abort_cmd;
-            s->status = READY_STAT;
+            s->status = READY_STAT | SEEK_STAT;
             s->atapi_dma = s->feature & 1;
             s->nsector = 1;
             ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
@@ -2287,7 +2287,7 @@
             if (!s->is_cf)
                 goto abort_cmd;
             s->error = 0x09;    /* miscellaneous error */
-            s->status = READY_STAT;
+            s->status = READY_STAT | SEEK_STAT;
             ide_set_irq(s);
             break;
         case CFA_ERASE_SECTORS:
@@ -2299,14 +2299,14 @@
             if (val == CFA_ERASE_SECTORS)
                 s->media_changed = 1;
             s->error = 0x00;
-            s->status = READY_STAT;
+            s->status = READY_STAT | SEEK_STAT;
             ide_set_irq(s);
             break;
         case CFA_TRANSLATE_SECTOR:
             if (!s->is_cf)
                 goto abort_cmd;
             s->error = 0x00;
-            s->status = READY_STAT;
+            s->status = READY_STAT | SEEK_STAT;
             memset(s->io_buffer, 0, 0x200);
             s->io_buffer[0x00] = s->hcyl;                      /* Cyl MSB */
             s->io_buffer[0x01] = s->lcyl;                      /* Cyl LSB */
@@ -2352,7 +2352,7 @@
             default:
                 goto abort_cmd;
             }
-            s->status = READY_STAT;
+            s->status = READY_STAT | SEEK_STAT;
             ide_set_irq(s);
             break;
         default:
@@ -2566,7 +2566,7 @@
         s->mult_sectors = MAX_MULT_SECTORS;
     s->cur_drive = s;
     s->select = 0xa0;
-    s->status = READY_STAT;
+    s->status = READY_STAT | SEEK_STAT;
     ide_set_signature(s);
     /* init the transfer handler so that 0xffff is returned on data
        accesses */