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authorJakub Kicinski <jakub.kicinski@netronome.com>2018-12-04 02:43:28 +0100
committerDavid S. Miller <davem@davemloft.net>2018-12-05 20:30:06 +0100
commitb255e500c8dc111dd9efac1442a85a0dac913feb (patch)
tree75a06d4683fdb40db30fe7a2bfafc80f6e522748 /Documentation/networking/vxge.txt
parenttcp: reduce POLLOUT events caused by TCP_NOTSENT_LOWAT (diff)
downloadlinux-b255e500c8dc111dd9efac1442a85a0dac913feb.tar.xz
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net: documentation: build a directory structure for drivers
Documentation/networking/ is full of cryptically named files with driver documentation. This makes finding interesting information at a glance really hard. Move all those files into a directory called device_drivers (since not all drivers are for device) and fix up references. RFC v0.1 -> RFC v1: - also add .txt suffix to the files which are missing it (Quentin) Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: David Ahern <dsahern@gmail.com> Acked-by: Henrik Austad <henrik@austad.us> Signed-off-by: David S. Miller <davem@davemloft.net>
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-Neterion's (Formerly S2io) X3100 Series 10GbE PCIe Server Adapter Linux driver
-==============================================================================
-
-Contents
---------
-
-1) Introduction
-2) Features supported
-3) Configurable driver parameters
-4) Troubleshooting
-
-1) Introduction:
-----------------
-This Linux driver supports all Neterion's X3100 series 10 GbE PCIe I/O
-Virtualized Server adapters.
-The X3100 series supports four modes of operation, configurable via
-firmware -
- Single function mode
- Multi function mode
- SRIOV mode
- MRIOV mode
-The functions share a 10GbE link and the pci-e bus, but hardly anything else
-inside the ASIC. Features like independent hw reset, statistics, bandwidth/
-priority allocation and guarantees, GRO, TSO, interrupt moderation etc are
-supported independently on each function.
-
-(See below for a complete list of features supported for both IPv4 and IPv6)
-
-2) Features supported:
-----------------------
-
-i) Single function mode (up to 17 queues)
-
-ii) Multi function mode (up to 17 functions)
-
-iii) PCI-SIG's I/O Virtualization
- - Single Root mode: v1.0 (up to 17 functions)
- - Multi-Root mode: v1.0 (up to 17 functions)
-
-iv) Jumbo frames
- X3100 Series supports MTU up to 9600 bytes, modifiable using
- ip command.
-
-v) Offloads supported: (Enabled by default)
- Checksum offload (TCP/UDP/IP) on transmit and receive paths
- TCP Segmentation Offload (TSO) on transmit path
- Generic Receive Offload (GRO) on receive path
-
-vi) MSI-X: (Enabled by default)
- Resulting in noticeable performance improvement (up to 7% on certain
- platforms).
-
-vii) NAPI: (Enabled by default)
- For better Rx interrupt moderation.
-
-viii)RTH (Receive Traffic Hash): (Enabled by default)
- Receive side steering for better scaling.
-
-ix) Statistics
- Comprehensive MAC-level and software statistics displayed using
- "ethtool -S" option.
-
-x) Multiple hardware queues: (Enabled by default)
- Up to 17 hardware based transmit and receive data channels, with
- multiple steering options (transmit multiqueue enabled by default).
-
-3) Configurable driver parameters:
-----------------------------------
-
-i) max_config_dev
- Specifies maximum device functions to be enabled.
- Valid range: 1-8
-
-ii) max_config_port
- Specifies number of ports to be enabled.
- Valid range: 1,2
- Default: 1
-
-iii)max_config_vpath
- Specifies maximum VPATH(s) configured for each device function.
- Valid range: 1-17
-
-iv) vlan_tag_strip
- Enables/disables vlan tag stripping from all received tagged frames that
- are not replicated at the internal L2 switch.
- Valid range: 0,1 (disabled, enabled respectively)
- Default: 1
-
-v) addr_learn_en
- Enable learning the mac address of the guest OS interface in
- virtualization environment.
- Valid range: 0,1 (disabled, enabled respectively)
- Default: 0