From mboxrd@z Thu Jan 1 00:00:00 1970 From: Divy Le Ray Subject: [PATCH 1/11 RESEND] cxgb3 - Update rx coalescing length Date: Tue, 21 Aug 2007 20:49:05 -0700 Message-ID: <20070822034905.9260.77225.stgit@speedy5> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, swise@opengridcomputing.com To: jeff@garzik.org Return-path: Received: from stargate.chelsio.com ([12.22.49.110]:23568 "EHLO stargate.chelsio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752533AbXHVDtI (ORCPT ); Tue, 21 Aug 2007 23:49:08 -0400 Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Divy Le Ray Reduce Rx coalescing length to 12288 Large bursts from the adapter to the host create back pressure on the chip. Reducing the burst size avoids the issue. Signed-off-by: Divy Le Ray --- drivers/net/cxgb3/common.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h index c46c249..55922ed 100644 --- a/drivers/net/cxgb3/common.h +++ b/drivers/net/cxgb3/common.h @@ -104,7 +104,7 @@ enum { PROTO_SRAM_LINES = 128, /* size of TP sram */ }; -#define MAX_RX_COALESCING_LEN 16224U +#define MAX_RX_COALESCING_LEN 12288U enum { PAUSE_RX = 1 << 0,