linux-kernel - [PATCH 4.13 029/110] scsi: aacraid: Fix 2T+ drives on SmartIOC-2000

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Date:   Tue,  3 Oct 2017 14:28:51 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dave Carroll <david.carroll@...rosemi.com>,
        Christoph Hellwig <hch@....de>,
        Raghava Aditya Renukunta 
        <RaghavaAditya.Renukunta@...rosemi.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: [PATCH 4.13 029/110] scsi: aacraid: Fix 2T+ drives on SmartIOC-2000

4.13-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dave Carroll <david.carroll@...rosemi.com>

commit 6c92f7dbf25c36f35320e4ae0b508676410bac04 upstream.

The logic for supporting large drives was previously tied to 4Kn support
for SmartIOC-2000. As SmartIOC-2000 does not support volumes using 4Kn
drives, use the intended option flag AAC_OPT_NEW_COMM_64 to determine
support for volumes greater than 2T.

Signed-off-by: Dave Carroll <david.carroll@...rosemi.com>
Reviewed-by: Christoph Hellwig <hch@....de>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@...rosemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/aacraid/aachba.c  |   12 ++++++------
 drivers/scsi/aacraid/aacraid.h |    5 +++++
 2 files changed, 11 insertions(+), 6 deletions(-)

--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -699,13 +699,13 @@ static void _aac_probe_container1(void *
 	int status;
 
 	dresp = (struct aac_mount *) fib_data(fibptr);
-	if (!(fibptr->dev->supplement_adapter_info.supported_options2 &
-	    AAC_OPTION_VARIABLE_BLOCK_SIZE))
+	if (!aac_supports_2T(fibptr->dev)) {
 		dresp->mnt[0].capacityhigh = 0;
-	if ((le32_to_cpu(dresp->status) != ST_OK) ||
-	    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
-		_aac_probe_container2(context, fibptr);
-		return;
+		if ((le32_to_cpu(dresp->status) == ST_OK) &&
+			(le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
+			_aac_probe_container2(context, fibptr);
+			return;
+		}
 	}
 	scsicmd = (struct scsi_cmnd *) context;
 
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -2700,6 +2700,11 @@ static inline int aac_is_src(struct aac_
 	return 0;
 }
 
+static inline int aac_supports_2T(struct aac_dev *dev)
+{
+	return (dev->adapter_info.options & AAC_OPT_NEW_COMM_64);
+}
+
 char * get_container_type(unsigned type);
 extern int numacb;
 extern char aac_driver_version[];