From: Joe Eykholt <jeykholt@cisco.com>
Date: Wed, 1 Dec 2010 00:20:18 +0000 (-0800)
Subject: [SCSI] libfc: fix statistics for FCP input/output megabytes
X-Git-Tag: v2.6.38-rc1~27^2~64
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5f0e385fdafb7d6c8ded6464fa6421c735d96caf;p=pandora-kernel.git

[SCSI] libfc: fix statistics for FCP input/output megabytes

The statistics for InputMegabytes and OutputMegabytes are
misnamed.  They're accumulating bytes, not megabytes.

The statistic returned via /sys must be in megabytes, however,
which is what the HBA-API wants.  The FCP code needs to accumulate
it in bytes and then divide by 1,000,000 (not 2^20) before it
presented via sysfs.

This affects fcoe.ko only, not fnic.  The fnic driver
correctly by accumulating bytes and then converts to megabytes.

I checked that libhbalinux is using the /sys file directly without
conversion.

BTW, qla2xxx does divide by 2^20, which I'm not fixing here.

Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---

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