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net: ethernet: gianfar_ethtool: get phc index through drvdata 

Global variable gfar_phc_index was used to get and store
phc index through gianfar_ptp driver. However gianfar_ptp
had been renamed as ptp_qoriq for QorIQ common PTP driver.
This gfar_phc_index doesn't work any more, and the phc index
is stored in drvdata now. This patch is to support getting
phc index through ptp_qoriq drvdata.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yangbo Lu 2018-05-25 12:40:36 +08:00 committed by David S. Miller
parent 6c50c1ed72
commit 7349a74ea7
2 changed files with 18 additions and 8 deletions
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3
drivers/net/ethernet/freescale/gianfar.h
View File

@ -1372,7 +1372,4 @@ struct filer_table {
struct gfar_filer_entry fe[MAX_FILER_CACHE_IDX + 20];
};
/* The gianfar_ptp module will set this variable */
extern int gfar_phc_index;
#endif /* __GIANFAR_H */

23
drivers/net/ethernet/freescale/gianfar_ethtool.c
View File

@ -41,6 +41,8 @@
#include <linux/phy.h>
#include <linux/sort.h>
#include <linux/if_vlan.h>
#include <linux/of_platform.h>
#include <linux/fsl/ptp_qoriq.h>
#include "gianfar.h"
@ -1509,24 +1511,35 @@ static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
return ret;
}
int gfar_phc_index = -1;
EXPORT_SYMBOL(gfar_phc_index);
static int gfar_get_ts_info(struct net_device *dev,
struct ethtool_ts_info *info)
{
struct gfar_private *priv = netdev_priv(dev);
struct platform_device *ptp_dev;
struct device_node *ptp_node;
struct qoriq_ptp *ptp = NULL;
info->phc_index = -1;
if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) {
info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE;
info->phc_index = -1;
return 0;
}
ptp_node = of_find_compatible_node(NULL, NULL, "fsl,etsec-ptp");
if (ptp_node) {
ptp_dev = of_find_device_by_node(ptp_node);
if (ptp_dev)
ptp = platform_get_drvdata(ptp_dev);
}
if (ptp)
info->phc_index = ptp->phc_index;
info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
info->phc_index = gfar_phc_index;
info->tx_types = (1 << HWTSTAMP_TX_OFF) |
(1 << HWTSTAMP_TX_ON);
info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |