linux-kernel - [PATCH 2/2] cciss: correct the non-resettable board list

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Message-Id: <1424191222-30570-2-git-send-email-thenzl@redhat.com>
Date:	Tue, 17 Feb 2015 17:40:22 +0100
From:	Tomas Henzl <thenzl@...hat.com>
To:	linux-scsi@...r.kernel.org
Cc:	don.brace@...s.com, linux-kernel@...r.kernel.org, axboe@...nel.dk
Subject: [PATCH 2/2] cciss: correct the non-resettable board list

The hpsa driver carries a more recent version,
copy the table from there.

Signed-off-by: Tomas Henzl <thenzl@...hat.com>
---
 drivers/block/cciss.c | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 48498220cd..0ca65b25ef 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -582,12 +582,32 @@ static u32 unresettable_controller[] = {
 	0x3215103C, /* Smart Array E200i */
 	0x3237103C, /* Smart Array E500 */
 	0x323D103C, /* Smart Array P700m */
+	0x40800E11, /* Smart Array 5i */
 	0x409C0E11, /* Smart Array 6400 */
 	0x409D0E11, /* Smart Array 6400 EM */
+	0x40700E11, /* Smart Array 5300 */
+	0x40820E11, /* Smart Array 532 */
+	0x40830E11, /* Smart Array 5312 */
+	0x409A0E11, /* Smart Array 641 */
+	0x409B0E11, /* Smart Array 642 */
+	0x40910E11, /* Smart Array 6i */
 };
 
 /* List of controllers which cannot even be soft reset */
 static u32 soft_unresettable_controller[] = {
+	0x40800E11, /* Smart Array 5i */
+	0x40700E11, /* Smart Array 5300 */
+	0x40820E11, /* Smart Array 532 */
+	0x40830E11, /* Smart Array 5312 */
+	0x409A0E11, /* Smart Array 641 */
+	0x409B0E11, /* Smart Array 642 */
+	0x40910E11, /* Smart Array 6i */
+	/* Exclude 640x boards.  These are two pci devices in one slot
+	 * which share a battery backed cache module.  One controls the
+	 * cache, the other accesses the cache through the one that controls
+	 * it.  If we reset the one controlling the cache, the other will
+	 * likely not be happy.  Just forbid resetting this conjoined mess.
+	 */
 	0x409C0E11, /* Smart Array 6400 */
 	0x409D0E11, /* Smart Array 6400 EM */
 };
@@ -4663,8 +4683,7 @@ static int cciss_kdump_hard_reset_controller(struct pci_dev *pdev)
 	 */
 	cciss_lookup_board_id(pdev, &board_id);
 	if (!ctlr_is_resettable(board_id)) {
-		dev_warn(&pdev->dev, "Cannot reset Smart Array 640x "
-				"due to shared cache module.");
+		dev_warn(&pdev->dev, "Controller not resettable\n");
 		return -ENODEV;
 	}
 
-- 
1.9.3

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