From 0513ac3d2212072c6694430b1003ad4246a35466 Mon Sep 17 00:00:00 2001 From: Sathya Perla Date: Tue, 5 Jun 2012 19:37:19 +0000 Subject: [PATCH] be2net: do not modify PCI MaxReadReq size Setting the PCI MRRS to a value of 4096 (overriding the system decided value) had provided perf improvement in TX. But, IBM has provided feedback that on POWER platforms, this value is set by the system firmware, and drivers modifying this value can cause unpredictable results (like EEH errors.) So, backing off this change. On POWER7 platforms most slots, it seems, do get a MRRS of 4096. This patch reverts the following commit: "be2net: Modified PCI MaxReadReq size to 4096 bytes" commit 5a56eb10babbcd7b3796dc3c28c271260aa3608d. Suggested-by: Brian King Signed-off-by: Sathya Perla Signed-off-by: David S. Miller --- drivers/net/ethernet/emulex/benet/be_main.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index cfbec8b495cb..695c3cf76e8d 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -2766,8 +2766,6 @@ static int be_setup(struct be_adapter *adapter) be_cmd_set_flow_control(adapter, adapter->tx_fc, adapter->rx_fc); - pcie_set_readrq(adapter->pdev, 4096); - if (be_physfn(adapter) && num_vfs) { if (adapter->dev_num_vfs) be_vf_setup(adapter); -- 2.30.2