From 48544cc267da96a85e4d38aa1999a011229948d6 Mon Sep 17 00:00:00 2001
From: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Date: Fri, 20 Jul 2007 17:24:56 +0900
Subject: [PATCH] ps3: tx descriptor handling cleanup

gelic: TX descriptor handling cleanup

        - Emitted return value of NETDEV_TX_LOCKED when DMA map or kick
          failure.
          Now it would free the skb, update drop packet statistics
          and return OK. Requested from Jeff Garzik.
        - Enable tx queue if number of free descriptors are more than 2
        - Fixed descriptor leak if dma map for second descriptor failed
        - Stopped calling xmit handler from interrupt handler in order
          to recheck tx queue.  Instead, call appropriate helper functions.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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