| .. SPDX-License-Identifier: GPL-2.0+ |
| |
| ==================================================================== |
| Linux kernel networking driver for Marvell's Octeon PCI Endpoint NIC |
| ==================================================================== |
| |
| Network driver for Marvell's Octeon PCI EndPoint NIC. |
| Copyright (c) 2020 Marvell International Ltd. |
| |
| Contents |
| ======== |
| |
| - `Overview`_ |
| - `Supported Devices`_ |
| - `Interface Control`_ |
| |
| Overview |
| ======== |
| This driver implements networking functionality of Marvell's Octeon PCI |
| EndPoint NIC. |
| |
| Supported Devices |
| ================= |
| Currently, this driver support following devices: |
| * Network controller: Cavium, Inc. Device b200 |
| * Network controller: Cavium, Inc. Device b400 |
| |
| Interface Control |
| ================= |
| Network Interface control like changing mtu, link speed, link down/up are |
| done by writing command to mailbox command queue, a mailbox interface |
| implemented through a reserved region in BAR4. |
| This driver writes the commands into the mailbox and the firmware on the |
| Octeon device processes them. The firmware also sends unsolicited notifications |
| to driver for events suchs as link change, through notification queue |
| implemented as part of mailbox interface. |
