[3.8.y.z extended stable] Patch "[SCSI] bfa: Chinook quad port 16G FC HBA claim issue" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    [SCSI] bfa: Chinook quad port 16G FC HBA claim issue

to the linux-3.8.y-queue branch of the 3.8.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.8.y-queue

This patch is scheduled to be released in version 3.8.13.18.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.8.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 13c6edc09f2d73f3f563f875be4af8e52ba39bca Mon Sep 17 00:00:00 2001
From: Vijaya Mohan Guvva <vmohan at brocade.com>
Date: Wed, 4 Dec 2013 05:43:58 -0800
Subject: [SCSI] bfa: Chinook quad port 16G FC HBA claim issue

commit dcaf9aed995c2b2a49fb86bbbcfa2f92c797ab5d upstream.

Bfa driver crash is observed while pushing the firmware on to chinook
quad port card due to uninitialized bfi_image_ct2 access which gets
initialized only for CT2 ASIC based cards after request_firmware().
For quard port chinook (CT2 ASIC based), bfi_image_ct2 is not getting
initialized as there is no check for chinook PCI device ID before
request_firmware and instead bfi_image_cb is initialized as it is the
default case for card type check.

This patch includes changes to read the right firmware for quad port chinook.

Signed-off-by: Vijaya Mohan Guvva <vmohan at brocade.com>
Signed-off-by: James Bottomley <JBottomley at Parallels.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/scsi/bfa/bfad.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index e6bf126..630e09d 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1824,7 +1824,7 @@ out:
 static u32 *
 bfad_load_fwimg(struct pci_dev *pdev)
 {
-	if (pdev->device == BFA_PCI_DEVICE_ID_CT2) {
+	if (bfa_asic_id_ct2(pdev->device)) {
 		if (bfi_image_ct2_size == 0)
 			bfad_read_firmware(pdev, &bfi_image_ct2,
 				&bfi_image_ct2_size, BFAD_FW_FILE_CT2);
@@ -1834,12 +1834,14 @@ bfad_load_fwimg(struct pci_dev *pdev)
 			bfad_read_firmware(pdev, &bfi_image_ct,
 				&bfi_image_ct_size, BFAD_FW_FILE_CT);
 		return bfi_image_ct;
-	} else {
+	} else if (bfa_asic_id_cb(pdev->device)) {
 		if (bfi_image_cb_size == 0)
 			bfad_read_firmware(pdev, &bfi_image_cb,
 				&bfi_image_cb_size, BFAD_FW_FILE_CB);
 		return bfi_image_cb;
 	}
+
+	return NULL;
 }

 static void
--
1.8.3.2