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diff --git a/Documentation/networking/ixgbe.txt b/Documentation/networking/ixgbe.txt deleted file mode 100644 index 687835415707..000000000000 --- a/Documentation/networking/ixgbe.txt +++ /dev/null @@ -1,349 +0,0 @@ -Linux* Base Driver for the Intel(R) Ethernet 10 Gigabit PCI Express Family of -Adapters -============================================================================= - -Intel 10 Gigabit Linux driver. -Copyright(c) 1999 - 2013 Intel Corporation. - -Contents -======== - -- Identifying Your Adapter -- Additional Configurations -- Performance Tuning -- Known Issues -- Support - -Identifying Your Adapter -======================== - -The driver in this release is compatible with 82598, 82599 and X540-based -Intel Network Connections. - -For more information on how to identify your adapter, go to the Adapter & -Driver ID Guide at: - - http://support.intel.com/support/network/sb/CS-012904.htm - -SFP+ Devices with Pluggable Optics ----------------------------------- - -82599-BASED ADAPTERS - -NOTES: If your 82599-based Intel(R) Network Adapter came with Intel optics, or -is an Intel(R) Ethernet Server Adapter X520-2, then it only supports Intel -optics and/or the direct attach cables listed below. - -When 82599-based SFP+ devices are connected back to back, they should be set to -the same Speed setting via ethtool. Results may vary if you mix speed settings. -82598-based adapters support all passive direct attach cables that comply -with SFF-8431 v4.1 and SFF-8472 v10.4 specifications. Active direct attach -cables are not supported. - -Supplier Type Part Numbers - -SR Modules -Intel DUAL RATE 1G/10G SFP+ SR (bailed) FTLX8571D3BCV-IT -Intel DUAL RATE 1G/10G SFP+ SR (bailed) AFBR-703SDDZ-IN1 -Intel DUAL RATE 1G/10G SFP+ SR (bailed) AFBR-703SDZ-IN2 -LR Modules -Intel DUAL RATE 1G/10G SFP+ LR (bailed) FTLX1471D3BCV-IT -Intel DUAL RATE 1G/10G SFP+ LR (bailed) AFCT-701SDDZ-IN1 -Intel DUAL RATE 1G/10G SFP+ LR (bailed) AFCT-701SDZ-IN2 - -The following is a list of 3rd party SFP+ modules and direct attach cables that -have received some testing. Not all modules are applicable to all devices. - -Supplier Type Part Numbers - -Finisar SFP+ SR bailed, 10g single rate FTLX8571D3BCL -Avago SFP+ SR bailed, 10g single rate AFBR-700SDZ -Finisar SFP+ LR bailed, 10g single rate FTLX1471D3BCL - -Finisar DUAL RATE 1G/10G SFP+ SR (No Bail) FTLX8571D3QCV-IT -Avago DUAL RATE 1G/10G SFP+ SR (No Bail) AFBR-703SDZ-IN1 -Finisar DUAL RATE 1G/10G SFP+ LR (No Bail) FTLX1471D3QCV-IT -Avago DUAL RATE 1G/10G SFP+ LR (No Bail) AFCT-701SDZ-IN1 -Finistar 1000BASE-T SFP FCLF8522P2BTL -Avago 1000BASE-T SFP ABCU-5710RZ - -82599-based adapters support all passive and active limiting direct attach -cables that comply with SFF-8431 v4.1 and SFF-8472 v10.4 specifications. - -Laser turns off for SFP+ when device is down -------------------------------------------- -"ip link set down" turns off the laser for 82599-based SFP+ fiber adapters. -"ip link set up" turns on the laser. - - -82598-BASED ADAPTERS - -NOTES for 82598-Based Adapters: -- Intel(R) Network Adapters that support removable optical modules only support - their original module type (i.e., the Intel(R) 10 Gigabit SR Dual Port - Express Module only supports SR optical modules). If you plug in a different - type of module, the driver will not load. -- Hot Swapping/hot plugging optical modules is not supported. -- Only single speed, 10 gigabit modules are supported. -- LAN on Motherboard (LOMs) may support DA, SR, or LR modules. Other module - types are not supported. Please see your system documentation for details. - -The following is a list of 3rd party SFP+ modules and direct attach cables that -have received some testing. Not all modules are applicable to all devices. - -Supplier Type Part Numbers - -Finisar SFP+ SR bailed, 10g single rate FTLX8571D3BCL -Avago SFP+ SR bailed, 10g single rate AFBR-700SDZ -Finisar SFP+ LR bailed, 10g single rate FTLX1471D3BCL - -82598-based adapters support all passive direct attach cables that comply -with SFF-8431 v4.1 and SFF-8472 v10.4 specifications. Active direct attach -cables are not supported. - - -Flow Control ------------- -Ethernet Flow Control (IEEE 802.3x) can be configured with ethtool to enable -receiving and transmitting pause frames for ixgbe. When TX is enabled, PAUSE -frames are generated when the receive packet buffer crosses a predefined -threshold. When rx is enabled, the transmit unit will halt for the time delay -specified when a PAUSE frame is received. - -Flow Control is enabled by default. If you want to disable a flow control -capable link partner, use ethtool: - - ethtool -A eth? autoneg off RX off TX off - -NOTE: For 82598 backplane cards entering 1 gig mode, flow control default -behavior is changed to off. Flow control in 1 gig mode on these devices can -lead to Tx hangs. - -Intel(R) Ethernet Flow Director -------------------------------- -Supports advanced filters that direct receive packets by their flows to -different queues. Enables tight control on routing a flow in the platform. -Matches flows and CPU cores for flow affinity. Supports multiple parameters -for flexible flow classification and load balancing. - -Flow director is enabled only if the kernel is multiple TX queue capable. - -An included script (set_irq_affinity.sh) automates setting the IRQ to CPU -affinity. - -You can verify that the driver is using Flow Director by looking at the counter -in ethtool: fdir_miss and fdir_match. - -Other ethtool Commands: -To enable Flow Director - ethtool -K ethX ntuple on -To add a filter - Use -U switch. e.g., ethtool -U ethX flow-type tcp4 src-ip 10.0.128.23 - action 1 -To see the list of filters currently present: - ethtool -u ethX - -Perfect Filter: Perfect filter is an interface to load the filter table that -funnels all flow into queue_0 unless an alternative queue is specified using -"action". In that case, any flow that matches the filter criteria will be -directed to the appropriate queue. - -If the queue is defined as -1, filter will drop matching packets. - -To account for filter matches and misses, there are two stats in ethtool: -fdir_match and fdir_miss. In addition, rx_queue_N_packets shows the number of -packets processed by the Nth queue. - -NOTE: Receive Packet Steering (RPS) and Receive Flow Steering (RFS) are not -compatible with Flow Director. IF Flow Director is enabled, these will be -disabled. - -The following three parameters impact Flow Director. - -FdirMode --------- -Valid Range: 0-2 (0=off, 1=ATR, 2=Perfect filter mode) -Default Value: 1 - - Flow Director filtering modes. - -FdirPballoc ------------ -Valid Range: 0-2 (0=64k, 1=128k, 2=256k) -Default Value: 0 - - Flow Director allocated packet buffer size. - -AtrSampleRate --------------- -Valid Range: 1-100 -Default Value: 20 - - Software ATR Tx packet sample rate. For example, when set to 20, every 20th - packet, looks to see if the packet will create a new flow. - -Node ----- -Valid Range: 0-n -Default Value: 1 (off) - - 0 - n: where n is the number of NUMA nodes (i.e. 0 - 3) currently online in - your system - 1: turns this option off - - The Node parameter will allow you to pick which NUMA node you want to have - the adapter allocate memory on. - -max_vfs -------- -Valid Range: 1-63 -Default Value: 0 - - If the value is greater than 0 it will also force the VMDq parameter to be 1 - or more. - - This parameter adds support for SR-IOV. It causes the driver to spawn up to - max_vfs worth of virtual function. - - -Additional Configurations -========================= - - Jumbo Frames - ------------ - The driver supports Jumbo Frames for all adapters. Jumbo Frames support is - enabled by changing the MTU to a value larger than the default of 1500. - The maximum value for the MTU is 16110. Use the ip command to - increase the MTU size. For example: - - ip link set dev ethx mtu 9000 - - The maximum MTU setting for Jumbo Frames is 9710. This value coincides - with the maximum Jumbo Frames size of 9728. - - Generic Receive Offload, aka GRO - -------------------------------- - The driver supports the in-kernel software implementation of GRO. GRO has - shown that by coalescing Rx traffic into larger chunks of data, CPU - utilization can be significantly reduced when under large Rx load. GRO is an - evolution of the previously-used LRO interface. GRO is able to coalesce - other protocols besides TCP. It's also safe to use with configurations that - are problematic for LRO, namely bridging and iSCSI. - - Data Center Bridging, aka DCB - ----------------------------- - DCB is a configuration Quality of Service implementation in hardware. - It uses the VLAN priority tag (802.1p) to filter traffic. That means - that there are 8 different priorities that traffic can be filtered into. - It also enables priority flow control which can limit or eliminate the - number of dropped packets during network stress. Bandwidth can be - allocated to each of these priorities, which is enforced at the hardware - level. - - To enable DCB support in ixgbe, you must enable the DCB netlink layer to - allow the userspace tools (see below) to communicate with the driver. - This can be found in the kernel configuration here: - - -> Networking support - -> Networking options - -> Data Center Bridging support - - Once this is selected, DCB support must be selected for ixgbe. This can - be found here: - - -> Device Drivers - -> Network device support (NETDEVICES [=y]) - -> Ethernet (10000 Mbit) (NETDEV_10000 [=y]) - -> Intel(R) 10GbE PCI Express adapters support - -> Data Center Bridging (DCB) Support - - After these options are selected, you must rebuild your kernel and your - modules. - - In order to use DCB, userspace tools must be downloaded and installed. - The dcbd tools can be found at: - - http://e1000.sf.net - - Ethtool - ------- - The driver utilizes the ethtool interface for driver configuration and - diagnostics, as well as displaying statistical information. The latest - ethtool version is required for this functionality. - - The latest release of ethtool can be found from - https://www.kernel.org/pub/software/network/ethtool/ - - FCoE - ---- - This release of the ixgbe driver contains new code to enable users to use - Fiber Channel over Ethernet (FCoE) and Data Center Bridging (DCB) - functionality that is supported by the 82598-based hardware. This code has - no default effect on the regular driver operation, and configuring DCB and - FCoE is outside the scope of this driver README. Refer to - http://www.open-fcoe.org/ for FCoE project information and contact - e1000-eedc@lists.sourceforge.net for DCB information. - - MAC and VLAN anti-spoofing feature - ---------------------------------- - When a malicious driver attempts to send a spoofed packet, it is dropped by - the hardware and not transmitted. An interrupt is sent to the PF driver - notifying it of the spoof attempt. - - When a spoofed packet is detected the PF driver will send the following - message to the system log (displayed by the "dmesg" command): - - Spoof event(s) detected on VF (n) - - Where n=the VF that attempted to do the spoofing. - - -Performance Tuning -================== - -An excellent article on performance tuning can be found at: - -http://www.redhat.com/promo/summit/2008/downloads/pdf/Thursday/Mark_Wagner.pdf - - -Known Issues -============ - - Enabling SR-IOV in a 32-bit or 64-bit Microsoft* Windows* Server 2008/R2 - Guest OS using Intel (R) 82576-based GbE or Intel (R) 82599-based 10GbE - controller under KVM - ------------------------------------------------------------------------ - KVM Hypervisor/VMM supports direct assignment of a PCIe device to a VM. This - includes traditional PCIe devices, as well as SR-IOV-capable devices using - Intel 82576-based and 82599-based controllers. - - While direct assignment of a PCIe device or an SR-IOV Virtual Function (VF) - to a Linux-based VM running 2.6.32 or later kernel works fine, there is a - known issue with Microsoft Windows Server 2008 VM that results in a "yellow - bang" error. This problem is within the KVM VMM itself, not the Intel driver, - or the SR-IOV logic of the VMM, but rather that KVM emulates an older CPU - model for the guests, and this older CPU model does not support MSI-X - interrupts, which is a requirement for Intel SR-IOV. - - If you wish to use the Intel 82576 or 82599-based controllers in SR-IOV mode - with KVM and a Microsoft Windows Server 2008 guest try the following - workaround. The workaround is to tell KVM to emulate a different model of CPU - when using qemu to create the KVM guest: - - "-cpu qemu64,model=13" - - -Support -======= - -For general information, go to the Intel support website at: - - http://support.intel.com - -or the Intel Wired Networking project hosted by Sourceforge at: - - http://e1000.sourceforge.net - -If an issue is identified with the released source code on the supported -kernel with a supported adapter, email the specific information related -to the issue to e1000-devel@lists.sf.net |