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Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging

# gpg: Signature made Wed 25 Nov 2015 20:25:21 GMT using RSA key ID AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>"

* remotes/jnsnow/tags/ide-pull-request:
  ide-test: fix timeouts
  atapi: Fix code indentation
  atapi: Account for failed and invalid operations in cd_read_sector()
  ide-test: cdrom_pio_impl fixup

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/ide/atapi.c

@@ -148,17 +148,18 @@ static void cd_read_sector_cb(void *opaque, int ret)
 {
     IDEState *s = opaque;
 
-    block_acct_done(blk_get_stats(s->blk), &s->acct);
-
 #ifdef DEBUG_IDE_ATAPI
     printf("cd_read_sector_cb: lba=%d ret=%d\n", s->lba, ret);
 #endif
 
     if (ret < 0) {
+        block_acct_failed(blk_get_stats(s->blk), &s->acct);
         ide_atapi_io_error(s, ret);
         return;
     }
 
+    block_acct_done(blk_get_stats(s->blk), &s->acct);
+
     if (s->cd_sector_size == 2352) {
         cd_data_to_raw(s->io_buffer, s->lba);
     }
@@ -173,6 +174,7 @@ static void cd_read_sector_cb(void *opaque, int ret)
 static int cd_read_sector(IDEState *s)
 {
     if (s->cd_sector_size != 2048 && s->cd_sector_size != 2352) {
+        block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_READ);
         return -EINVAL;
     }
 

tests/ide-test.c

@@ -642,15 +642,19 @@ static void nsleep(int64_t nsecs)
 
 static uint8_t ide_wait_clear(uint8_t flag)
 {
-    int i;
     uint8_t data;
+    time_t st;
 
     /* Wait with a 5 second timeout */
-    for (i = 0; i <= 12500000; i++) {
+    time(&st);
+    while (true) {
         data = inb(IDE_BASE + reg_status);
         if (!(data & flag)) {
             return data;
         }
+        if (difftime(time(NULL), st) > 5.0) {
+            break;
+        }
         nsleep(400);
     }
     g_assert_not_reached();
@@ -658,14 +662,18 @@ static uint8_t ide_wait_clear(uint8_t flag)
 
 static void ide_wait_intr(int irq)
 {
-    int i;
+    time_t st;
     bool intr;
 
-    for (i = 0; i <= 12500000; i++) {
+    time(&st);
+    while (true) {
         intr = get_irq(irq);
         if (intr) {
             return;
         }
+        if (difftime(time(NULL), st) > 5.0) {
+            break;
+        }
         nsleep(400);
     }
 
@@ -709,9 +717,6 @@ static void cdrom_pio_impl(int nblocks)
     /* SCSI CDB (READ10) -- read n*2048 bytes from block 0 */
     send_scsi_cdb_read10(0, nblocks);
 
-    /* HP3: INTRQ_Wait */
-    ide_wait_intr(IDE_PRIMARY_IRQ);
-
     /* Read data back: occurs in bursts of 'BYTE_COUNT_LIMIT' bytes.
      * If BYTE_COUNT_LIMIT is odd, we transfer BYTE_COUNT_LIMIT - 1 bytes.
      * We allow an odd limit only when the remaining transfer size is
@@ -723,16 +728,25 @@ static void cdrom_pio_impl(int nblocks)
     for (i = 0; i < DIV_ROUND_UP(rxsize, limit); i++) {
         size_t offset = i * (limit / 2);
         size_t rem = (rxsize / 2) - offset;
-        /* HP2: Check_Status_B */
+
+        /* HP3: INTRQ_Wait */
+        ide_wait_intr(IDE_PRIMARY_IRQ);
+
+        /* HP2: Check_Status_B (and clear IRQ) */
         data = ide_wait_clear(BSY);
         assert_bit_set(data, DRQ | DRDY);
         assert_bit_clear(data, ERR | DF | BSY);
+
         /* HP4: Transfer_Data */
         for (j = 0; j < MIN((limit / 2), rem); j++) {
             rx[offset + j] = le16_to_cpu(inw(IDE_BASE + reg_data));
         }
-        ide_wait_intr(IDE_PRIMARY_IRQ);
     }
+
+    /* Check for final completion IRQ */
+    ide_wait_intr(IDE_PRIMARY_IRQ);
+
+    /* Sanity check final state */
     data = ide_wait_clear(DRQ);
     assert_bit_set(data, DRDY);
     assert_bit_clear(data, DRQ | ERR | DF | BSY);