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6271c8b827
Register each CAN channel of the device as an devlink physical port.
This makes it easier to get device information for a given network
interface (i.e. can2).
Example output:
$ devlink dev
pci/0000:07:00.0
pci/0000:08:00.0
pci/0000:09:00.0
$ devlink port
pci/0000:07:00.0/0: type eth netdev can0 flavour physical port 0 splittable false
pci/0000:07:00.0/1: type eth netdev can1 flavour physical port 1 splittable false
pci/0000:07:00.0/2: type eth netdev can2 flavour physical port 2 splittable false
pci/0000:07:00.0/3: type eth netdev can3 flavour physical port 3 splittable false
pci/0000:08:00.0/0: type eth netdev can4 flavour physical port 0 splittable false
pci/0000:08:00.0/1: type eth netdev can5 flavour physical port 1 splittable false
pci/0000:09:00.0/0: type eth netdev can6 flavour physical port 0 splittable false
pci/0000:09:00.0/1: type eth netdev can7 flavour physical port 1 splittable false
pci/0000:09:00.0/2: type eth netdev can8 flavour physical port 2 splittable false
pci/0000:09:00.0/3: type eth netdev can9 flavour physical port 3 splittable false
$ devlink port show can2
pci/0000:07:00.0/2: type eth netdev can2 flavour physical port 2 splittable false
$ devlink dev info
pci/0000:07:00.0:
driver kvaser_pciefd
versions:
running:
fw 1.3.75
pci/0000:08:00.0:
driver kvaser_pciefd
versions:
running:
fw 2.4.29
pci/0000:09:00.0:
driver kvaser_pciefd
versions:
running:
fw 1.3.72
$ sudo ethtool -i can2
driver: kvaser_pciefd
version: 6.8.0-40-generic
firmware-version: 1.3.75
expansion-rom-version:
bus-info: 0000:07:00.0
supports-statistics: no
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Link: https://patch.msgid.link/20250725123230.8-10-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
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/* kvaser_pciefd devlink functions
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*
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* Copyright (C) 2025 KVASER AB, Sweden. All rights reserved.
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*/
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#include "kvaser_pciefd.h"
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#include <linux/netdevice.h>
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#include <net/devlink.h>
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static int kvaser_pciefd_devlink_info_get(struct devlink *devlink,
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struct devlink_info_req *req,
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struct netlink_ext_ack *extack)
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{
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struct kvaser_pciefd *pcie = devlink_priv(devlink);
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char buf[] = "xxx.xxx.xxxxx";
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int ret;
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if (pcie->fw_version.major) {
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snprintf(buf, sizeof(buf), "%u.%u.%u",
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pcie->fw_version.major,
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pcie->fw_version.minor,
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pcie->fw_version.build);
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ret = devlink_info_version_running_put(req,
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DEVLINK_INFO_VERSION_GENERIC_FW,
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buf);
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if (ret)
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return ret;
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}
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return 0;
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}
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const struct devlink_ops kvaser_pciefd_devlink_ops = {
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.info_get = kvaser_pciefd_devlink_info_get,
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};
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int kvaser_pciefd_devlink_port_register(struct kvaser_pciefd_can *can)
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{
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int ret;
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struct devlink_port_attrs attrs = {
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.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL,
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.phys.port_number = can->can.dev->dev_port,
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};
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devlink_port_attrs_set(&can->devlink_port, &attrs);
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ret = devlink_port_register(priv_to_devlink(can->kv_pcie),
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&can->devlink_port, can->can.dev->dev_port);
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if (ret)
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return ret;
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SET_NETDEV_DEVLINK_PORT(can->can.dev, &can->devlink_port);
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return 0;
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}
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void kvaser_pciefd_devlink_port_unregister(struct kvaser_pciefd_can *can)
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{
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devlink_port_unregister(&can->devlink_port);
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}
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