Subject: [PATCH 5/8] e1000: FIX: Don't limit descriptor size to 4kb for PCI-E adapters

From: "Kok, Auke" <[email-masked]>
Date: Tue, 17 Oct 2006 12:02:43 -0700

82571 and newer chispets don't need to limit desc. length to 4kb and can
handle 8kb sizes.

Signed-off-by: Jesse Brandeburg <[email-masked]>
Signed-off-by: Auke Kok <[email-masked]>
---

 drivers/net/e1000/e1000_main.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index f19b43c..95bbb2d 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -2992,6 +2992,11 @@ e1000_xmit_frame(struct sk_buff *skb, st
 		return NETDEV_TX_OK;
 	}
 
+	/* 82571 and newer doesn't need the workaround that limited descriptor
+	 * length to 4kB */
+	if (adapter->hw.mac_type >= e1000_82571)
+		max_per_txd = 8192;
+
 #ifdef NETIF_F_TSO
 	mss = skb_shinfo(skb)->gso_size;
 	/* The controller does a simple calculation to

---
Auke Kok <[email-masked]>