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diff --git a/kmod/igb/README b/kmod/igb/README deleted file mode 100644 index c08ff5d4..00000000 --- a/kmod/igb/README +++ /dev/null @@ -1,65 +0,0 @@ -INTRODUCTION - -This component demonstrates various features of the Intel I210 Ethernet -controller. These features can be used for developing Audio/Video Bridging -applications, Industrial Ethernet applications which require precise timing -control over frame transmission, or test harnesses for measuring system -latencies and sampling events. - -This component - igb_avb - is limited to the Intel I210 Ethernet controller. -The kernel module can be loaded in parallel to existing in-kernel igb modules -which may be used on other supported Intel LAN controllers. Modifications are -required to the in-kernel drivers if the existing in-kernel igb driver has -support for the Intel I210. - -BUILDING - -The kernel igb module should be built which supports the latest Linux kernel -3.x PTP clock support. Unlike the standard igb driver, this version enables -PTP by default (and will fail to build without kernel PTP support enabled). - -RUNNING - -To install the kernel mode driver, you must have root permissions. Typically, -the driver is loaded by removing the currently running igb and running igb_avb: - sudo rmmod igb - <optional> sudo modprobe i2c_algo_bit - <optional> sudo modprobe dca - <optional> sudo modprobe ptp - sudo insmod ./igb_avb.ko - -Another option is to install the igb_avb driver in the "updates" directory -which will override igb for the other drivers claiming the same device ID. This -will allow the coexistence of igb and igb_avb. Copy igb_avb.ko to: - sudo cp igb_avb.ko /lib/modules/`uname -r`/updates/ - sudo depmod -a - modprobe igb_avb - -As the AVB Transmit queues (0,1) are mapped to a user-space application, -typical LAN traffic must be steered away from these queues. The driver -implements one method registering an ndo_select_queue handler to map traffic to -queue[3]. Another possibly faster method uses the the transmit packet steering -(XPS) functionality available since 2.6.35. An example script is below - -#!/bin/bash - -INTERFACE=p2p1 -export INTERFACE - -rmmod igb -rmmod igb_avb -insmod ./igb_avb.ko -sleep 1 -ifconfig $INTERFACE down -echo 0 > /sys/class/net/$INTERFACE/queues/tx-0/xps_cpus -echo 0 > /sys/class/net/$INTERFACE/queues/tx-1/xps_cpus -echo f > /sys/class/net/$INTERFACE/queues/tx-2/xps_cpus -echo f > /sys/class/net/$INTERFACE/queues/tx-3/xps_cpus -ifconfig $INTERFACE up - -You map also want to disable the network manager from 'managing' your -interface. The easiest way is to find the interface configuration scripts on -your distribution. On Fedora 18, these are located at -/etc/sysconfig/network-scripts/ifcfg-<interface>. Edit the file to set -'BOOTPROTO=none'. This eliminates DHCP trying to configure the interface while -you may be doing user-space application configuration. |