From: Santosh Rastapur <santosh@chelsio.com>
Date: Thu, 14 Mar 2013 05:08:51 +0000 (+0000)
Subject: cxgb4: Add T5 write combining support
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~65^2~467
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=22adfe0a85ca3808e09e7b4787cb08299d89aeaa;p=pandora-kernel.git

cxgb4: Add T5 write combining support

This patch implements a low latency Write Combining (aka Write Coalescing) work
request path. PCIE maps User Space Doorbell BAR2 region writes to the new
interface to SGE. SGE pulls a new message from PCIE new interface and if its a
coalesced write work request then pushes it for processing. This patch copies
coalesced work request to memory mapped BAR2 space.

Signed-off-by: Santosh Rastapur <santosh@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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