1 .. SPDX-License-Identifier: GPL-2.0
7 This document describes the devlink features implemented by the ``mlx4``
13 .. list-table:: Generic parameters implemented
17 * - ``internal_err_reset``
21 * - ``region_snapshot_enable``
24 The ``mlx4`` driver also implements the following driver-specific
27 .. list-table:: Driver-specific parameters implemented
34 * - ``enable_64b_cqe_eqe``
37 - Enable 64 byte CQEs/EQEs, if the FW supports it.
41 - Enable using the 4k UAR.
43 The ``mlx4`` driver supports reloading via ``DEVLINK_CMD_RELOAD``
48 The ``mlx4`` driver supports dumping the firmware PCI crspace and health
49 buffer during a critical firmware issue.
51 In case a firmware command times out, firmware getting stuck, or a non zero
52 value on the catastrophic buffer, a snapshot will be taken by the driver.
54 The ``cr-space`` region will contain the firmware PCI crspace contents. The
55 ``fw-health`` region will contain the device firmware's health buffer.
56 Snapshots for both of these regions are taken on the same event triggers.