From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hannes Reinecke Subject: [PATCH 3/5] qla2xxx: Restrict max_luns to 16-bit for older HBAs Date: Tue, 10 Dec 2013 12:05:13 +0100 Message-ID: <1386673515-87133-4-git-send-email-hare@suse.de> References: <1386673515-87133-1-git-send-email-hare@suse.de> Return-path: Received: from cantor2.suse.de ([195.135.220.15]:35947 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752086Ab3LJLFV (ORCPT ); Tue, 10 Dec 2013 06:05:21 -0500 In-Reply-To: <1386673515-87133-1-git-send-email-hare@suse.de> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: James Bottomley Cc: linux-scsi@vger.kernel.org, Hannes Reinecke , Chad Dupuis 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 Signed-off-by: Hannes Reinecke --- 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