967db3529e
Currently, multicast packet filtering is accomplished by installing MCAM rule that matches all-multicast MAC address and has its NPC_RX_ACTION set to unicast to PF. Similarly promisc feature is achieved by installing MCAM rule that matches all the traffic received by the channel and unicast the packets to PF. This approach only applies to PF and is not scalable across VFs. This patch adds support for PF/VF multicast and promisc feature by reserving NIX_RX_MCE_S entries from the global MCE list allocated during NIX block initialization. The NIX_RX_MCE_S entries create a linked list with a flag indicating the end of the list, and each entry points to a PF_FUNC (either PF or VF). When a packet NPC_RX_ACTION is set to MCAST, the corresponding NIX_RX_MCE_S list is traversed and the packet is queued to each PF_FUNC available on the list. The PF or VF driver adds the multicast/promisc packet match entry and updates the MCE list with correspondng PF_FUNC. When a PF or VF interface is disabled, the corresponding NIX_RX_MCE_S entry is removed from the MCE list and the MCAM entry will be disabled if the list is empty. Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com> Signed-off-by: Sunil Kovvuri Goutham <Sunil.Goutham@marvell.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.