8baddaa9d4
Add support for WAKE_UCAST, WAKE_MCAST, WAKE_BCAST, WAKE_MAGIC and WAKE_MAGICSECURE. This is only supported with the BCM54210E and compatible Ethernet PHYs. Using the in-band interrupt or an out of band GPIO interrupts are supported. Broadcom PHYs will generate a Wake-on-LAN level low interrupt on LED4 as soon as one of the supported patterns is being matched. That includes generating such an interrupt even if the PHY is operated during normal modes. If WAKE_UCAST is selected, this could lead to the LED4 interrupt firing up for every packet being received which is absolutely undesirable from a performance point of view. Because the Wake-on-LAN configuration can be set long before the system is actually put to sleep, we cannot have an interrupt service routine to clear on read the interrupt status register and ensure that new packet matches will be detected. It is desirable to enable the Wake-on-LAN interrupt as late as possible during the system suspend process such that we limit the number of interrupts to be handled by the system, but also conversely feed into the Linux's system suspend way of dealing with interrupts in and around the points of no return. Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
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.