netdev - [net-next-2.6 PATCH 3/4] e1000e: packet split should not be used with early receive

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Date:	Thu, 17 Jun 2010 21:59:27 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, gospo@...hat.com, bphilips@...ell.com,
	Bruce Allan <bruce.w.allan@...el.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next-2.6 PATCH 3/4] e1000e: packet split should not be used with
	early receive

From: Bruce Allan <bruce.w.allan@...el.com>

Originally it was thought there were issues with ICHx/PCH parts with packet
split when jumbo frames were enabled but in fact it is really only when
early-receive is enabled (via ERT register) on these parts.  Use packet
split with jumbos but only when early-receive is not enabled.

Signed-off-by: Bruce Allan <bruce.w.allan@...el.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---

 drivers/net/e1000e/netdev.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index aa14976..71592ed 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -2772,7 +2772,7 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter)
 	 * per packet.
 	 */
 	pages = PAGE_USE_COUNT(adapter->netdev->mtu);
-	if (!(adapter->flags & FLAG_IS_ICH) && (pages <= 3) &&
+	if (!(adapter->flags & FLAG_HAS_ERT) && (pages <= 3) &&
 	    (PAGE_SIZE <= 16384) && (rctl & E1000_RCTL_LPE))
 		adapter->rx_ps_pages = pages;
 	else

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