Mark Bloch cdf611d170 net/mlx5: Lag, use hash when in roce lag on 4 ports
Downstream patches will add support for lag over 4 ports.
In that mode we will only use hash as the uplink selection method.
Using hash instead of queue affinity (before this patch) offers key
advantages like:

- Align ports selection method with the method used by the bond device

- Better packets distribution where a single queue can transmit from
  multiple ports (with queue affinity a queue is bound to a single port
  regardless of the packet being sent).

- In case of failover we traffic is split between multiple ports and not
  a single one like in queue affinity.

Going forward it was decided that queue affinity will be deprecated
as using hash provides a better user experience which means on 4 ports
HCAs hash will always be used.

Future work will add hash support for 2 ports HCAs as well.

Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-05-09 22:54:02 -07:00
2022-05-01 13:57:58 -07:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
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Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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