190 lines
6.4 KiB
C
190 lines
6.4 KiB
C
/*! \file ngknet_ptp.c
|
|
*
|
|
* Utility routines for PTP.
|
|
*
|
|
*/
|
|
/*
|
|
* $Copyright: Copyright 2018-2022 Broadcom. All rights reserved.
|
|
* The term 'Broadcom' refers to Broadcom Inc. and/or its subsidiaries.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* A copy of the GNU General Public License version 2 (GPLv2) can
|
|
* be found in the LICENSES folder.$
|
|
*/
|
|
|
|
#include "ngknet_callback.h"
|
|
#include "ngknet_ptp.h"
|
|
|
|
int
|
|
ngknet_ptp_rx_config_set(struct net_device *ndev, int *filter)
|
|
{
|
|
struct ngknet_private *priv = netdev_priv(ndev);
|
|
struct ngknet_dev *dev = priv->bkn_dev;
|
|
|
|
if (!dev->cbc->ptp_rx_config_set_cb) {
|
|
return SHR_E_UNAVAIL;
|
|
}
|
|
|
|
/*
|
|
* The expected Rx filter value is passed to the callback. The callback
|
|
* should pass back the actual filter value by the paramter <filter>.
|
|
* The callback can use netif->user_data to get other private parameters
|
|
* like phys_port which should be introduced when the netif is created.
|
|
*/
|
|
return dev->cbc->ptp_rx_config_set_cb(&dev->dev_info, &priv->netif, filter);
|
|
}
|
|
|
|
int
|
|
ngknet_ptp_tx_config_set(struct net_device *ndev, int type)
|
|
{
|
|
struct ngknet_private *priv = netdev_priv(ndev);
|
|
struct ngknet_dev *dev = priv->bkn_dev;
|
|
|
|
if (!dev->cbc->ptp_tx_config_set_cb) {
|
|
return SHR_E_UNAVAIL;
|
|
}
|
|
|
|
/*
|
|
* The Tx type value is passed to the callback by the parameter <type>.
|
|
* The callback should do the configuration according to the type.
|
|
* The callback can use netif->user_data to get other private parameters
|
|
* like phys_port which should be introduced when the netif is created.
|
|
*/
|
|
return dev->cbc->ptp_tx_config_set_cb(&dev->dev_info, &priv->netif, &type);
|
|
}
|
|
|
|
int
|
|
ngknet_ptp_rx_hwts_get(struct net_device *ndev, struct sk_buff *skb, uint64_t *ts)
|
|
{
|
|
struct ngknet_private *priv = netdev_priv(ndev);
|
|
struct ngknet_dev *dev = priv->bkn_dev;
|
|
struct ngknet_callback_desc *cbd = NGKNET_SKB_CB(skb);
|
|
struct pkt_hdr *pkh = (struct pkt_hdr *)skb->data;
|
|
|
|
if (!dev->cbc->ptp_rx_hwts_get_cb) {
|
|
return SHR_E_UNAVAIL;
|
|
}
|
|
|
|
cbd->dinfo = &dev->dev_info;
|
|
cbd->netif = &priv->netif;
|
|
cbd->pmd = skb->data + PKT_HDR_SIZE;
|
|
cbd->pmd_len = pkh->meta_len;
|
|
cbd->pkt_len = pkh->data_len;
|
|
|
|
/*
|
|
* The callback should get timestamp value for a Rx packet and return
|
|
* by the parameter <ts>.
|
|
* Some parameters have been consolidated to SKB as above. They can be
|
|
* achieved by NGKNET_SKB_CB(skb). Specially more private paramters are
|
|
* in NGKNET_SKB_CB(skb)->dinfo or NGKNET_SKB_CB(skb)->netif->user_data
|
|
* such as dev_type, phys_port and so on.
|
|
*/
|
|
return dev->cbc->ptp_rx_hwts_get_cb(skb, ts);
|
|
}
|
|
|
|
int
|
|
ngknet_ptp_tx_hwts_get(struct net_device *ndev, struct sk_buff *skb, uint64_t *ts)
|
|
{
|
|
struct ngknet_private *priv = netdev_priv(ndev);
|
|
struct ngknet_dev *dev = priv->bkn_dev;
|
|
struct ngknet_callback_desc *cbd = NGKNET_SKB_CB(skb);
|
|
struct pkt_hdr *pkh = (struct pkt_hdr *)skb->data;
|
|
|
|
if (!dev->cbc->ptp_tx_hwts_get_cb) {
|
|
return SHR_E_UNAVAIL;
|
|
}
|
|
|
|
cbd->dinfo = &dev->dev_info;
|
|
cbd->netif = &priv->netif;
|
|
cbd->pmd = skb->data + PKT_HDR_SIZE;
|
|
cbd->pmd_len = pkh->meta_len;
|
|
cbd->pkt_len = pkh->data_len;
|
|
|
|
/*
|
|
* The callback should get timestamp value for a Tx packet and return
|
|
* by the parameter <ts>.
|
|
* For HWTSTAMP_TX_ONESTEP_SYNC type, the time value can be achieved and
|
|
* returned immediately. Otherwise, for HWTSTAMP_TX_ON type, the callback
|
|
* should wait till the time value can be available, i.e. the packet has
|
|
* been tranmitted out from port.
|
|
* Some parameters have been consolidated to SKB as above. They can be
|
|
* achieved by NGKNET_SKB_CB(skb). Specially more private paramters are
|
|
* in NGKNET_SKB_CB(skb)->dinfo or NGKNET_SKB_CB(skb)->netif->user_data
|
|
* such as dev_type, phys_port and so on.
|
|
*/
|
|
return dev->cbc->ptp_tx_hwts_get_cb(skb, ts);
|
|
}
|
|
|
|
int
|
|
ngknet_ptp_tx_meta_set(struct net_device *ndev, struct sk_buff *skb)
|
|
{
|
|
struct ngknet_private *priv = netdev_priv(ndev);
|
|
struct ngknet_dev *dev = priv->bkn_dev;
|
|
struct ngknet_callback_desc *cbd = NGKNET_SKB_CB(skb);
|
|
struct pkt_hdr *pkh = (struct pkt_hdr *)skb->data;
|
|
|
|
if (!dev->cbc->ptp_tx_meta_set_cb) {
|
|
return SHR_E_UNAVAIL;
|
|
}
|
|
|
|
cbd->dinfo = &dev->dev_info;
|
|
cbd->netif = &priv->netif;
|
|
cbd->pmd = skb->data + PKT_HDR_SIZE;
|
|
cbd->pmd_len = pkh->meta_len;
|
|
cbd->pkt_len = pkh->data_len;
|
|
|
|
/*
|
|
* The callback should configure the metadata <NGKNET_SKB_CB(skb)->pmd>
|
|
* for HW timestamping according to the corresponding switch device.
|
|
* Some parameters have been consolidated to SKB as above. They can be
|
|
* achieved by NGKNET_SKB_CB(skb). Specially more private paramters are
|
|
* in NGKNET_SKB_CB(skb)->dinfo or NGKNET_SKB_CB(skb)->netif->user_data
|
|
* such as dev_type, phys_port and so on.
|
|
*/
|
|
return dev->cbc->ptp_tx_meta_set_cb(skb);
|
|
}
|
|
|
|
int
|
|
ngknet_ptp_phc_index_get(struct net_device *ndev, int *index)
|
|
{
|
|
struct ngknet_private *priv = netdev_priv(ndev);
|
|
struct ngknet_dev *dev = priv->bkn_dev;
|
|
|
|
if (!dev->cbc->ptp_phc_index_get_cb) {
|
|
return SHR_E_UNAVAIL;
|
|
}
|
|
|
|
/*
|
|
* The callback should return the HPC index by the parameter <index>.
|
|
* netif->user_data can be used to get other private parameters such as
|
|
* phys_port which should be introduced when the netif is created.
|
|
*/
|
|
return dev->cbc->ptp_phc_index_get_cb(&dev->dev_info, &priv->netif, index);
|
|
}
|
|
|
|
int
|
|
ngknet_ptp_dev_ctrl(struct ngknet_dev *dev, int cmd, char *data, int len)
|
|
{
|
|
if (!dev->cbc->ptp_dev_ctrl_cb) {
|
|
return SHR_E_UNAVAIL;
|
|
}
|
|
|
|
/*
|
|
* The callback is IOCTL dispatcher for PTP kernel driver/module.
|
|
* The parameter <cmd> is the command defined by the user. The parameter
|
|
* <data> and <len> are used for interactions between the user application
|
|
* and the driver for PTP device start/stop, enable/disable, set/get, and
|
|
* so on.
|
|
*/
|
|
return dev->cbc->ptp_dev_ctrl_cb(&dev->dev_info, cmd, data, len);
|
|
}
|
|
|