From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brice Goglin Subject: [PATCH 3/4] myri10ge: prevent 4k rdma on SGI TIOCE chipset Date: Wed, 07 Mar 2007 20:01:53 +0100 Message-ID: <45EF0C21.8070406@myri.com> References: <45EF0B6C.9070005@myri.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: Jeff Garzik Return-path: Received: from dsl.myri.com ([64.172.73.26]:1997 "EHLO myri.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2992450AbXCGTEA (ORCPT ); Wed, 7 Mar 2007 14:04:00 -0500 In-Reply-To: <45EF0B6C.9070005@myri.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Do not use 4k rdma request on SGI TIOCE chipset since this bridge does not support it. Signed-off-by: Brice Goglin --- drivers/net/myri10ge/myri10ge.c | 6 ++++++ 1 file changed, 6 insertions(+) Index: linux-rc/drivers/net/myri10ge/myri10ge.c =================================================================== --- linux-rc.orig/drivers/net/myri10ge/myri10ge.c 2007-03-07 08:51:07.000000000 +0100 +++ linux-rc/drivers/net/myri10ge/myri10ge.c 2007-03-07 08:51:47.000000000 +0100 @@ -2514,6 +2514,12 @@ bridge->vendor, bridge->device); mgp->tx.boundary = 4096; mgp->fw_name = myri10ge_fw_aligned; + } else if (bridge && + bridge->vendor == PCI_VENDOR_ID_SGI && + bridge->device == 0x4002 /* TIOCE pcie-port */ ) { + /* this pcie bridge does not support 4K rdma request */ + mgp->tx.boundary = 2048; + mgp->fw_name = myri10ge_fw_aligned; } } else { if (myri10ge_force_firmware == 1) {