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Commit e64d7d02 authored by Jesse Brandeburg's avatar Jesse Brandeburg Committed by Auke Kok
Browse files

e1000: FIX: Disable Packet Split for non jumbo frames 



Allocations using alloc_page are taking too long for normal MTU, so
use LPE only for jumbo frames.

Signed-off-bu: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: default avatarAuke Kok <auke-jan.h.kok@intel.com>
parent 225a5dbd

drivers/net/e1000/e1000_main.c

+4 −2
Original line number Diff line number Diff line
@@ -1808,9 +1808,11 @@ e1000_setup_rctl(struct e1000_adapter *adapter) 
	 * followed by the page buffers.  Therefore, skb->data is

	 * sized to hold the largest protocol header.

	 */

	/* allocations using alloc_page take too long for regular MTU

	 * so only enable packet split for jumbo frames */

	pages = PAGE_USE_COUNT(adapter->netdev->mtu);

	if ((adapter->hw.mac_type > e1000_82547_rev_2) && (pages <= 3) &&

	    PAGE_SIZE <= 16384)

	if ((adapter->hw.mac_type >= e1000_82571) && (pages <= 3) &&

	    PAGE_SIZE <= 16384 && (rctl & E1000_RCTL_LPE))

		adapter->rx_ps_pages = pages;

	else

		adapter->rx_ps_pages = 0;