[Qemu-devel] [PULL 25/35] ahci: factor ncq_finish out of ncq_cb

[John Snow <jsnow@redhat.com>]

When we add werror=stop or rerror=stop support to NCQ,
we'll want to take a codepath where we don't actually
complete the command, so factor that out into a new routine.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435767578-32743-6-git-send-email-jsnow@redhat.com
---
 hw/ide/ahci.c | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index b3a6a91..b0b9b41 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -933,23 +933,11 @@ static void ncq_err(NCQTransferState *ncq_tfs)
     ncq_tfs->drive->port_regs.scr_err |= (1 << ncq_tfs->tag);
 }
 
-static void ncq_cb(void *opaque, int ret)
+static void ncq_finish(NCQTransferState *ncq_tfs)
 {
-    NCQTransferState *ncq_tfs = (NCQTransferState *)opaque;
-    IDEState *ide_state = &ncq_tfs->drive->port.ifs[0];
-
-    if (ret == -ECANCELED) {
-        return;
-    }
     /* Clear bit for this tag in SActive */
     ncq_tfs->drive->port_regs.scr_act &= ~(1 << ncq_tfs->tag);
 
-    if (ret < 0) {
-        ncq_err(ncq_tfs);
-    } else {
-        ide_state->status = READY_STAT | SEEK_STAT;
-    }
-
     ahci_write_fis_sdb(ncq_tfs->drive->hba, ncq_tfs->drive->port_no,
                        (1 << ncq_tfs->tag));
 
@@ -962,6 +950,24 @@ static void ncq_cb(void *opaque, int ret)
     ncq_tfs->used = 0;
 }
 
+static void ncq_cb(void *opaque, int ret)
+{
+    NCQTransferState *ncq_tfs = (NCQTransferState *)opaque;
+    IDEState *ide_state = &ncq_tfs->drive->port.ifs[0];
+
+    if (ret == -ECANCELED) {
+        return;
+    }
+
+    if (ret < 0) {
+        ncq_err(ncq_tfs);
+    } else {
+        ide_state->status = READY_STAT | SEEK_STAT;
+    }
+
+    ncq_finish(ncq_tfs);
+}
+
 static int is_ncq(uint8_t ata_cmd)
 {
     /* Based on SATA 3.2 section 13.6.3.2 */
-- 
2.1.0