From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ayaz Abdulla Subject: [PATCH] forcedeth boot delay fix Date: Sun, 18 Nov 2007 14:13:41 -0500 Message-ID: <47408EE5.2040302@nvidia.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="------------040108080706070904020703" To: Jeff Garzik , Manfred Spraul , Andrew Morton , nedev , stable@kernel.org Return-path: Received: from hqemgate04.nvidia.com ([216.228.112.152]:16664 "EHLO hqemgate04.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750759AbXKSUKr (ORCPT ); Mon, 19 Nov 2007 15:10:47 -0500 Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org This is a multi-part message in MIME format. --------------040108080706070904020703 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit This patch fixes a long boot delay in the forcedeth driver. During initialization, the timeout for the handshake between mgmt unit and driver can be very long. The patch reduces the timeout by eliminating a extra loop around the timeout logic. Signed-off-by: Ayaz Abdulla --------------040108080706070904020703 Content-Type: text/plain; name="patch-forcedeth-sema-fix" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="patch-forcedeth-sema-fix" --- old/drivers/net/forcedeth.c 2007-11-08 17:33:00.000000000 -0500 +++ new/drivers/net/forcedeth.c 2007-11-08 17:34:25.000000000 -0500 @@ -5286,20 +5286,17 @@ if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) { np->mac_in_use = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST; dprintk(KERN_INFO "%s: mgmt unit is running. mac in use %x.\n", pci_name(pci_dev), np->mac_in_use); - for (i = 0; i < 5000; i++) { - msleep(1); - if (nv_mgmt_acquire_sema(dev)) { - /* management unit setup the phy already? */ - if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) == - NVREG_XMITCTL_SYNC_PHY_INIT) { - /* phy is inited by mgmt unit */ - phyinitialized = 1; - dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", pci_name(pci_dev)); - } else { - /* we need to init the phy */ - } - break; + if (nv_mgmt_acquire_sema(dev)) { + /* management unit setup the phy already? */ + if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) == + NVREG_XMITCTL_SYNC_PHY_INIT) { + /* phy is inited by mgmt unit */ + phyinitialized = 1; + dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", pci_name(pci_dev)); + } else { + /* we need to init the phy */ } + break; } } } --------------040108080706070904020703--