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tg3: Nullify RSS for loopback test

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The loopback test assumes all traffic goes to the first rx queue.  There
is a 1 in 4 chance this won't be true if RSS is enabled though.  This
patch reprograms the RSS indirection table to route all rx packets to
the first queue.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2011-04-20 07:57:37 +00:00 committed by David S. Miller
parent eb07a9408e
commit 4a85f09831
1 changed files with 9 additions and 0 deletions
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9
drivers/net/tg3.c
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@ -11269,6 +11269,15 @@ static int tg3_test_loopback(struct tg3 *tp)
goto done;
}
if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS) {
int i;
/* Reroute all rx packets to the 1st queue */
for (i = MAC_RSS_INDIR_TBL_0;
i < MAC_RSS_INDIR_TBL_0 + TG3_RSS_INDIR_TBL_SIZE; i += 4)
tw32(i, 0x0);
}
/* Turn off gphy autopowerdown. */
if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
tg3_phy_toggle_apd(tp, false);