1.. SPDX-License-Identifier: GPL-2.0+ 2 3==================================================================== 4Linux kernel networking driver for Marvell's Octeon PCI Endpoint NIC 5==================================================================== 6 7Network driver for Marvell's Octeon PCI EndPoint NIC. 8Copyright (c) 2020 Marvell International Ltd. 9 10Contents 11======== 12 13- `Overview`_ 14- `Supported Devices`_ 15- `Interface Control`_ 16 17Overview 18======== 19This driver implements networking functionality of Marvell's Octeon PCI 20EndPoint NIC. 21 22Supported Devices 23================= 24Currently, this driver support following devices: 25 * Network controller: Cavium, Inc. Device b100 26 * Network controller: Cavium, Inc. Device b200 27 * Network controller: Cavium, Inc. Device b400 28 * Network controller: Cavium, Inc. Device b900 29 * Network controller: Cavium, Inc. Device ba00 30 * Network controller: Cavium, Inc. Device bc00 31 * Network controller: Cavium, Inc. Device bd00 32 33Interface Control 34================= 35Network Interface control like changing mtu, link speed, link down/up are 36done by writing command to mailbox command queue, a mailbox interface 37implemented through a reserved region in BAR4. 38This driver writes the commands into the mailbox and the firmware on the 39Octeon device processes them. The firmware also sends unsolicited notifications 40to driver for events suchs as link change, through notification queue 41implemented as part of mailbox interface. 42