From 0e07fcb33baa179ca4746beb14c610bdca63c802 Mon Sep 17 00:00:00 2001
From: Scott Long <scottl@FreeBSD.org>
Date: Sun, 24 Oct 2004 09:31:25 +0000
Subject: MFC:

Do not retry on requests that has lost thier device during reinit.

Should fix hangs on IBM's etc with the fake slave problem.

Approved by: re
---
 sys/dev/ata/ata-all.c   | 12 ++++++------
 sys/dev/ata/ata-queue.c | 15 +++------------
 2 files changed, 9 insertions(+), 18 deletions(-)

diff --git a/sys/dev/ata/ata-all.c b/sys/dev/ata/ata-all.c
index d546c588feb6..f2fccd7105a8 100644
--- a/sys/dev/ata/ata-all.c
+++ b/sys/dev/ata/ata-all.c
@@ -306,6 +306,12 @@ ata_reinit(struct ata_channel *ch)
 	}
     }
 
+    ch->flags &= ~ATA_IMMEDIATE_MODE;
+    mtx_lock(&ch->state_mtx);
+    ch->state = ATA_IDLE;
+    mtx_unlock(&ch->state_mtx);
+    ch->locking(ch, ATA_LF_UNLOCK);
+
     /* attach new devices */
     if ((newdev = ~devices & ch->devices)) {
 	if ((newdev & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) &&
@@ -323,12 +329,6 @@ ata_reinit(struct ata_channel *ch)
     if (bootverbose)
 	ata_printf(ch, -1, "device config done ..\n");
 
-    ch->flags &= ~ATA_IMMEDIATE_MODE;
-    mtx_lock(&ch->state_mtx);
-    ch->state = ATA_IDLE;
-    mtx_unlock(&ch->state_mtx);
-    ch->locking(ch, ATA_LF_UNLOCK);
-
     ata_start(ch);
     return 0;
 }
diff --git a/sys/dev/ata/ata-queue.c b/sys/dev/ata/ata-queue.c
index 32332726dcf0..d0544d07ea27 100644
--- a/sys/dev/ata/ata-queue.c
+++ b/sys/dev/ata/ata-queue.c
@@ -182,15 +182,13 @@ ata_start(struct ata_channel *ch)
 	    /* check for the right state */
 	    mtx_lock(&ch->state_mtx);
 	    if (ch->state == ATA_IDLE) {
+		ATA_DEBUG_RQ(request, "starting");
 		TAILQ_REMOVE(&ch->ata_queue, request, chain);
 		ch->running = request;
-
-		ATA_DEBUG_RQ(request, "starting");
-
+		ch->state = ATA_ACTIVE;
 		if (!dumping)
 		    callout_reset(&request->callout, request->timeout * hz,
 				  (timeout_t*)ata_timeout, request);
-
 		if (ch->hw.begin_transaction(request) == ATA_OP_FINISHED) {
 		    ch->running = NULL;
 		    ch->state = ATA_IDLE;
@@ -200,8 +198,6 @@ ata_start(struct ata_channel *ch)
 		    ata_finish(request);
 		    return;
 		}
-		else
-		    ch->state = ATA_ACTIVE;
 	    }
 	    mtx_unlock(&ch->state_mtx);
 	}
@@ -242,14 +238,9 @@ ata_completed(void *context, int dummy)
 
     /* if we had a timeout, reinit channel and deal with the falldown */
     if (request->flags & ATA_R_TIMEOUT) {
-	int error = ata_reinit(ch);
 
-	/* if our device disappeared return as cleanup was done already */
-	if (!request->device->param)
-	    return;
-	
 	/* if reinit succeeded and retries still permit, reinject request */
-	if (!error && request->retries-- > 0) {
+	if (ata_reinit(ch) && request->retries-- > 0 && request->device->param){
 	    request->flags &= ~(ATA_R_TIMEOUT | ATA_R_DEBUG);
 	    request->flags |= (ATA_R_IMMEDIATE | ATA_R_REQUEUE);
 	    ATA_DEBUG_RQ(request, "completed reinject");
-- 
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