From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?UGF3ZcWCIFN0YXN6ZXdza2k=?= Subject: DCA/IOAT problem Date: Mon, 26 Jan 2009 20:49:12 +0100 Message-ID: <497E13B8.9040803@itcare.pl> References: <497DF609.9000600@chelsio.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit To: Linux Network Development list Return-path: Received: from smtp.iq.pl ([86.111.241.19]:55717 "EHLO smtp.iq.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752723AbZAZT4A (ORCPT ); Mon, 26 Jan 2009 14:56:00 -0500 Received: from unknown (HELO [192.168.1.10]) (itcare_pstaszewski@[83.7.230.35]) (envelope-sender ) by smtp.iq.pl with AES256-SHA encrypted SMTP for ; 26 Jan 2009 19:49:16 -0000 In-Reply-To: <497DF609.9000600@chelsio.com> Sender: netdev-owner@vger.kernel.org List-ID: Hello Some lspci: lspci 00:00.0 Host bridge: Intel Corporation Memory Controller Hub (rev 90) 00:02.0 PCI bridge: Intel Corporation PCI Express x8 Port 2-3 (rev 90) 00:04.0 PCI bridge: Intel Corporation PCI Express x16 Port 4-7 (rev 90) 00:08.0 System peripheral: Intel Corporation DMA Engine (rev 90) 00:10.0 Host bridge: Intel Corporation FSB Registers (rev 90) 00:10.1 Host bridge: Intel Corporation FSB Registers (rev 90) 00:10.2 Host bridge: Intel Corporation FSB Registers (rev 90) 00:11.0 Host bridge: Intel Corporation Reserved Registers (rev 90) 00:13.0 Host bridge: Intel Corporation Reserved Registers (rev 90) 00:15.0 Host bridge: Intel Corporation DDR Channel 0 Registers (rev 90) 00:16.0 Host bridge: Intel Corporation DDR Channel 1 Registers (rev 90) 00:1a.0 USB Controller: Intel Corporation USB UHCI Controller #4 (rev 02) 00:1a.7 USB Controller: Intel Corporation USB2 EHCI Controller #2 (rev 02) 00:1c.0 PCI bridge: Intel Corporation PCI Express Port 1 (rev 02) 00:1c.4 PCI bridge: Intel Corporation PCI Express Port 5 (rev 02) 00:1c.5 PCI bridge: Intel Corporation PCI Express Port 6 (rev 02) 00:1d.0 USB Controller: Intel Corporation USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation USB UHCI Controller #3 (rev 02) 00:1d.7 USB Controller: Intel Corporation USB2 EHCI Controller #1 (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92) 00:1f.0 ISA bridge: Intel Corporation LPC Interface Controller (rev 02) 00:1f.2 IDE interface: Intel Corporation 4 port SATA IDE Controller (rev 02) 00:1f.3 SMBus: Intel Corporation SMBus Controller (rev 02) 00:1f.5 IDE interface: Intel Corporation 2 port SATA IDE Controller (rev 02) 01:00.0 Ethernet controller: Intel Corporation Device 10dd (rev 01) 04:00.0 Ethernet controller: Intel Corporation 82573E Gigabit Ethernet Controller (Copper) (rev 03) 05:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet Controller 06:01.0 VGA compatible controller: ATI Technologies Inc ES1000 (rev 02) and then: modprobe ioatdma dmesg: ... ... IPv4 FIB: Using LC-trie version 0.408 e1000e 0000:04:00.0: irq 1274 for MSI/MSI-X e1000e 0000:04:00.0: irq 1274 for MSI/MSI-X e1000e 0000:05:00.0: irq 1273 for MSI/MSI-X e1000e 0000:05:00.0: irq 1273 for MSI/MSI-X 0000:05:00.0: eth1: Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX dca service started, version 1.4 ioatdma 0000:00:08.0: can't find IRQ for PCI INT A; probably buggy MP table ioatdma 0000:00:08.0: setting latency timer to 64 ioatdma 0000:00:08.0: Intel(R) I/OAT DMA Engine found, 4 channels, device version 0x12, driver version 3.30 ioatdma 0000:00:08.0: irq 1255 for MSI/MSI-X ioatdma 0000:00:08.0: DCA is disabled in BIOS ixgbe: eth2: ixgbe_watchdog_task: NIC Link is Up 10 Gbps, Flow Control: None e1000e 0000:04:00.0: irq 1274 for MSI/MSI-X e1000e 0000:04:00.0: irq 1274 for MSI/MSI-X ... ... lspvi -vvv (for dma engine) 00:08.0 System peripheral: Intel Corporation DMA Engine (rev 90) Subsystem: Super Micro Computer Inc Device de80 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR-