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| author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2010-12-10 10:47:39 +0300 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2010-12-11 09:12:14 +0300 |
| commit | 1ffd7246445038569f4c2f4b39bda1e71e68f1a2 (patch) | |
| tree | df0ee20d12dd47ab1aa1548cb88eab75cb1211f3 /Documentation/networking/igb.txt | |
| parent | 072ed34fa97374b390a2493fa281ec8a7888b312 (diff) | |
| download | linux-1ffd7246445038569f4c2f4b39bda1e71e68f1a2.tar.xz | |
Documentation/networking/igb.txt: update documentation
Update Intel Wired LAN igb documentation.
v2- Updated the ethtool support link, removed the LRO section and
anti-spoofing sections.
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'Documentation/networking/igb.txt')
| -rw-r--r-- | Documentation/networking/igb.txt | 31 |
1 files changed, 4 insertions, 27 deletions
diff --git a/Documentation/networking/igb.txt b/Documentation/networking/igb.txt index ab2d71831892..4a5e29c19bd1 100644 --- a/Documentation/networking/igb.txt +++ b/Documentation/networking/igb.txt @@ -36,6 +36,7 @@ Default Value: 0 This parameter adds support for SR-IOV. It causes the driver to spawn up to max_vfs worth of virtual function. + Additional Configurations ========================= @@ -60,9 +61,10 @@ Additional Configurations Ethtool ------- The driver utilizes the ethtool interface for driver configuration and - diagnostics, as well as displaying statistical information. + diagnostics, as well as displaying statistical information. The latest + version of Ethtool can be found at: - http://sourceforge.net/projects/gkernel. + http://ftp.kernel.org/pub/software/network/ethtool/ Enabling Wake on LAN* (WoL) --------------------------- @@ -91,31 +93,6 @@ Additional Configurations REQUIREMENTS: MSI-X support is required for Multiqueue. If MSI-X is not found, the system will fallback to MSI or to Legacy interrupts. - LRO - --- - Large Receive Offload (LRO) is a technique for increasing inbound throughput - of high-bandwidth network connections by reducing CPU overhead. It works by - aggregating multiple incoming packets from a single stream into a larger - buffer before they are passed higher up the networking stack, thus reducing - the number of packets that have to be processed. LRO combines multiple - Ethernet frames into a single receive in the stack, thereby potentially - decreasing CPU utilization for receives. - - NOTE: You need to have inet_lro enabled via either the CONFIG_INET_LRO or - CONFIG_INET_LRO_MODULE kernel config option. Additionally, if - CONFIG_INET_LRO_MODULE is used, the inet_lro module needs to be loaded - before the igb driver. - - You can verify that the driver is using LRO by looking at these counters in - Ethtool: - - lro_aggregated - count of total packets that were combined - lro_flushed - counts the number of packets flushed out of LRO - lro_no_desc - counts the number of times an LRO descriptor was not available - for the LRO packet - - NOTE: IPv6 and UDP are not supported by LRO. - Support ======= |