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authorBruce Allan <bruce.w.allan@intel.com>2010-11-24 09:01:25 +0300
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2010-12-11 09:13:08 +0300
commited5c2b0b78e5467f7948bef92b21f3c76823f392 (patch)
treec65953d1001154b155c4af3ff6d4fbf4652774b8
parenta82a14f4cdcfedb27eacec8eb4d9e47d42c10d43 (diff)
downloadlinux-ed5c2b0b78e5467f7948bef92b21f3c76823f392.tar.xz
e1000e: 82574/82583 performance improvement
Increasing the transmit fifo by 4K (by decreasing the receive fifo size specified in .pba by the same amount) increases Tx performance. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
-rw-r--r--drivers/net/e1000e/82571.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index 6942e2f86eac..280d41fc2a2d 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -2005,7 +2005,7 @@ struct e1000_info e1000_82574_info = {
| FLAG_HAS_AMT
| FLAG_HAS_CTRLEXT_ON_LOAD,
.flags2 = FLAG2_CHECK_PHY_HANG,
- .pba = 36,
+ .pba = 32,
.max_hw_frame_size = DEFAULT_JUMBO,
.get_variants = e1000_get_variants_82571,
.mac_ops = &e82571_mac_ops,
@@ -2022,7 +2022,7 @@ struct e1000_info e1000_82583_info = {
| FLAG_HAS_SMART_POWER_DOWN
| FLAG_HAS_AMT
| FLAG_HAS_CTRLEXT_ON_LOAD,
- .pba = 36,
+ .pba = 32,
.max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN,
.get_variants = e1000_get_variants_82571,
.mac_ops = &e82571_mac_ops,