From: Mohamed Abbas <mohamed.abbas@intel.com>
Date: Fri, 22 May 2009 18:01:52 +0000 (-0700)
Subject: iwlcore: Add support for periodic RX interrupt
X-Git-Tag: v2.6.31-rc1~330^2~313^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=40cefda9ce11c44a2531d07af812900aa5f3ce9d;p=pandora-kernel.git

iwlcore: Add support for periodic RX interrupt

Periodic RX interrupt needed with ICT interrupt to prevent RX race.
Sending RX interrupt require many steps to be done in the
the device:
 1- write interrupt to current index in ICT table.
 2- dma RX frame.
 3- update RX shared data to indicate last write index.
 4- send interrupt.
This could lead to RX race, driver could receive RX interrupt
but the shared data changes does not reflect that.
this could lead to RX race, RX periodic will solve this race

Signed-off-by: Mohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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