From eb73d558d1c1c931de0b3a86af962c77d74ef688 Mon Sep 17 00:00:00 2001
From: Mark Lord <liml@rtr.ca>
Date: Tue, 29 Jan 2008 13:24:00 -0500
Subject: [PATCH] sata_mv ncq Introduce per-tag SG tables

In preparation for supporting NCQ, we must allocate separate SG tables
for each command tag, rather than just a single table per port as before.

Gen-I hardware cannot do NCQ, though, so we still allocate just a single
table for that, but populate it in all 32 slots to avoid special-cases
elsewhere in hotter paths of the code.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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