linux-kernel - [PATCH 2/3] Drivers: hv: vmbus: Treat Fibre Channel devices as performance critical

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Message-Id: <1450225648-4711-2-git-send-email-kys@microsoft.com>
Date:	Tue, 15 Dec 2015 16:27:27 -0800
From:	"K. Y. Srinivasan" <kys@...rosoft.com>
To:	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
	vkuznets@...hat.com, jasowang@...hat.com
Cc:	"K. Y. Srinivasan" <kys@...rosoft.com>
Subject: [PATCH 2/3] Drivers: hv: vmbus: Treat Fibre Channel devices as performance critical

For performance critical devices, we distribute the incoming
channel interrupt load across available CPUs in the guest.
Include Fibre channel devices in the set of devices for which
we would distribute the interrupt load.

Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
---
 drivers/hv/channel_mgmt.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index d013171..1c1ad47 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -361,6 +361,7 @@ err_free_chan:
 enum {
 	IDE = 0,
 	SCSI,
+	FC,
 	NIC,
 	ND_NIC,
 	PCIE,
@@ -377,6 +378,8 @@ static const struct hv_vmbus_device_id hp_devs[] = {
 	{ HV_IDE_GUID, },
 	/* Storage - SCSI */
 	{ HV_SCSI_GUID, },
+	/* Storage - FC */
+	{ HV_SYNTHFC_GUID, },
 	/* Network */
 	{ HV_NIC_GUID, },
 	/* NetworkDirect Guest RDMA */
-- 
1.7.4.1

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