| Jesse Brandeburg | 1bff652 | 2013-09-11 08:40:23 +0000 | [diff] [blame] | 1 | Linux Base Driver for the Intel(R) Ethernet Controller XL710 Family |
| 2 | =================================================================== |
| 3 | |
| 4 | Intel i40e Linux driver. |
| 5 | Copyright(c) 2013 Intel Corporation. |
| 6 | |
| 7 | Contents |
| 8 | ======== |
| 9 | |
| 10 | - Identifying Your Adapter |
| 11 | - Additional Configurations |
| 12 | - Performance Tuning |
| 13 | - Known Issues |
| 14 | - Support |
| 15 | |
| 16 | |
| 17 | Identifying Your Adapter |
| 18 | ======================== |
| 19 | |
| 20 | The driver in this release is compatible with the Intel Ethernet |
| 21 | Controller XL710 Family. |
| 22 | |
| 23 | For more information on how to identify your adapter, go to the Adapter & |
| 24 | Driver ID Guide at: |
| 25 | |
| 26 | http://support.intel.com/support/network/sb/CS-012904.htm |
| 27 | |
| 28 | |
| 29 | Enabling the driver |
| 30 | =================== |
| 31 | |
| 32 | The driver is enabled via the standard kernel configuration system, |
| 33 | using the make command: |
| 34 | |
| 35 | Make oldconfig/silentoldconfig/menuconfig/etc. |
| 36 | |
| 37 | The driver is located in the menu structure at: |
| 38 | |
| 39 | -> Device Drivers |
| 40 | -> Network device support (NETDEVICES [=y]) |
| 41 | -> Ethernet driver support |
| 42 | -> Intel devices |
| 43 | -> Intel(R) Ethernet Controller XL710 Family |
| 44 | |
| 45 | Additional Configurations |
| 46 | ========================= |
| 47 | |
| 48 | Generic Receive Offload (GRO) |
| 49 | ----------------------------- |
| 50 | The driver supports the in-kernel software implementation of GRO. GRO has |
| 51 | shown that by coalescing Rx traffic into larger chunks of data, CPU |
| 52 | utilization can be significantly reduced when under large Rx load. GRO is |
| 53 | an evolution of the previously-used LRO interface. GRO is able to coalesce |
| 54 | other protocols besides TCP. It's also safe to use with configurations that |
| 55 | are problematic for LRO, namely bridging and iSCSI. |
| 56 | |
| 57 | Ethtool |
| 58 | ------- |
| 59 | The driver utilizes the ethtool interface for driver configuration and |
| 60 | diagnostics, as well as displaying statistical information. The latest |
| 61 | ethtool version is required for this functionality. |
| 62 | |
| 63 | The latest release of ethtool can be found from |
| 64 | https://www.kernel.org/pub/software/network/ethtool |
| 65 | |
| 66 | Data Center Bridging (DCB) |
| 67 | -------------------------- |
| 68 | DCB configuration is not currently supported. |
| 69 | |
| 70 | FCoE |
| 71 | ---- |
| 72 | Fiber Channel over Ethernet (FCoE) hardware offload is not currently |
| 73 | supported. |
| 74 | |
| 75 | MAC and VLAN anti-spoofing feature |
| 76 | ---------------------------------- |
| 77 | When a malicious driver attempts to send a spoofed packet, it is dropped by |
| 78 | the hardware and not transmitted. An interrupt is sent to the PF driver |
| 79 | notifying it of the spoof attempt. |
| 80 | |
| 81 | When a spoofed packet is detected the PF driver will send the following |
| 82 | message to the system log (displayed by the "dmesg" command): |
| 83 | |
| 84 | Spoof event(s) detected on VF (n) |
| 85 | |
| 86 | Where n=the VF that attempted to do the spoofing. |
| 87 | |
| 88 | |
| 89 | Performance Tuning |
| 90 | ================== |
| 91 | |
| 92 | An excellent article on performance tuning can be found at: |
| 93 | |
| 94 | http://www.redhat.com/promo/summit/2008/downloads/pdf/Thursday/Mark_Wagner.pdf |
| 95 | |
| 96 | |
| 97 | Known Issues |
| 98 | ============ |
| 99 | |
| 100 | |
| 101 | Support |
| 102 | ======= |
| 103 | |
| 104 | For general information, go to the Intel support website at: |
| 105 | |
| 106 | http://support.intel.com |
| 107 | |
| 108 | or the Intel Wired Networking project hosted by Sourceforge at: |
| 109 | |
| 110 | http://e1000.sourceforge.net |
| 111 | |
| 112 | If an issue is identified with the released source code on the supported |
| 113 | kernel with a supported adapter, email the specific information related |
| 114 | to the issue to e1000-devel@lists.sourceforge.net and copy |
| 115 | netdev@vger.kernel.org. |