From: Hannes Reinecke <hare@suse.de>
To: James Bottomley <jbottomley@parallels.com>
Cc: linux-scsi@vger.kernel.org, Hannes Reinecke <hare@suse.de>,
Chad Dupuis <chad.dupuis@qlogic.com>
Subject: [PATCH 3/5] qla2xxx: Restrict max_luns to 16-bit for older HBAs
Date: Tue, 10 Dec 2013 12:05:13 +0100 [thread overview]
Message-ID: <1386673515-87133-4-git-send-email-hare@suse.de> (raw)
In-Reply-To: <1386673515-87133-1-git-send-email-hare@suse.de>
Older HBAs are only capable of supporting 16-bit LUNs,
so we need to make sure to adjust the 'ql2xmaxlun'
parameter accordingly.
Cc: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
drivers/scsi/qla2xxx/qla_os.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 89a5300..a088e5b 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -2600,6 +2600,11 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
else
host->max_cmd_len = MAX_CMDSZ;
host->max_channel = MAX_BUSES - 1;
+ if (!IS_QLAFX00(ha) && !IS_FWI2_CAPABLE(ha)) {
+ /* HW supports only 16-bit LUNs */
+ if (ql2xmaxlun > 0xffff)
+ ql2xmaxlun = 0xffff;
+ }
host->max_lun = ql2xmaxlun;
host->transportt = qla2xxx_transport_template;
sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
--
1.7.12.4
next prev parent reply other threads:[~2013-12-10 11:05 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-10 11:05 [PATCH 0/5][RFC] Support 64-bit LUNs Hannes Reinecke
2013-12-10 11:05 ` [PATCH 1/5] scsi: Remove CONFIG_SCSI_MULTI_LUN Hannes Reinecke
2014-03-27 14:47 ` Christoph Hellwig
2013-12-10 11:05 ` [PATCH 2/5] scsi_scan: Restrict sequential scan to 256 LUNs Hannes Reinecke
2014-03-27 14:49 ` Christoph Hellwig
2014-03-28 8:22 ` Hannes Reinecke
2014-03-28 12:47 ` Christoph Hellwig
2014-03-28 13:19 ` Hannes Reinecke
2013-12-10 11:05 ` Hannes Reinecke [this message]
2013-12-10 18:26 ` [PATCH 3/5] qla2xxx: Restrict max_luns to 16-bit for older HBAs Chad Dupuis
2014-05-15 6:38 ` Christoph Hellwig
2014-05-15 8:47 ` Hannes Reinecke
2013-12-10 11:05 ` [PATCH 4/5] scsi: use 64-bit LUNs Hannes Reinecke
2014-03-27 14:52 ` Christoph Hellwig
2013-12-10 11:05 ` [PATCH 5/5] scsi: use 64-bit value for 'max_luns' Hannes Reinecke
2014-03-27 14:52 ` Christoph Hellwig
2014-05-15 6:38 ` [PATCH 0/5][RFC] Support 64-bit LUNs Christoph Hellwig
2014-05-15 6:57 ` Hannes Reinecke
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