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Date: Wed, 05 May 2010 01:25:42 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, gospo@...hat.com,
Alexander Duyck <alexander.h.duyck@...el.com>,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next-2.6 PATCH 1/2] e1000e: increase rx fifo size to 36K on
82574 and 82583
From: Alexander Duyck <alexander.h.duyck@...el.com>
This change increases the RX fifo size to 36K for standard frames and
decreases the TX fifo size to 4K. The reason for this change is that on
slower systems the RX is much more likely to backfill and need space than
the TX is. As long as the TX fifo is twice the size of the MTU we should
have more than enough TX fifo.
Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/e1000e/82571.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index 17a25e1..1e73edd 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -1845,7 +1845,7 @@ struct e1000_info e1000_82574_info = {
| FLAG_HAS_SMART_POWER_DOWN
| FLAG_HAS_AMT
| FLAG_HAS_CTRLEXT_ON_LOAD,
- .pba = 20,
+ .pba = 36,
.max_hw_frame_size = DEFAULT_JUMBO,
.get_variants = e1000_get_variants_82571,
.mac_ops = &e82571_mac_ops,
@@ -1862,7 +1862,7 @@ struct e1000_info e1000_82583_info = {
| FLAG_HAS_SMART_POWER_DOWN
| FLAG_HAS_AMT
| FLAG_HAS_CTRLEXT_ON_LOAD,
- .pba = 20,
+ .pba = 36,
.max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN,
.get_variants = e1000_get_variants_82571,
.mac_ops = &e82571_mac_ops,
--
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