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net: renesas: rswitch: Fix GWTSDIE register handling

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Since the GWCA has the TX timestamp feature, this driver
should not disable it if one of ports is opened. So, fix it.

Reported-by: Phong Hoang <phong.hoang.wz@renesas.com>
Fixes: 33f5d733b5 ("net: renesas: rswitch: Improve TX timestamp accuracy")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yoshihiro Shimoda 2023-03-15 16:04:24 +09:00 committed by David S. Miller
parent e05bb97d9c
commit 2c59e993c8
2 changed files with 8 additions and 2 deletions
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9
drivers/net/ethernet/renesas/rswitch.c
View file

@ -1441,7 +1441,10 @@ static int rswitch_open(struct net_device *ndev)
rswitch_enadis_data_irq(rdev->priv, rdev->tx_queue->index, true);
rswitch_enadis_data_irq(rdev->priv, rdev->rx_queue->index, true);
iowrite32(GWCA_TS_IRQ_BIT, rdev->priv->addr + GWTSDIE);
if (bitmap_empty(rdev->priv->opened_ports, RSWITCH_NUM_PORTS))
iowrite32(GWCA_TS_IRQ_BIT, rdev->priv->addr + GWTSDIE);
bitmap_set(rdev->priv->opened_ports, rdev->port, 1);
return 0;
};
@ -1452,8 +1455,10 @@ static int rswitch_stop(struct net_device *ndev)
struct rswitch_gwca_ts_info *ts_info, *ts_info2;
netif_tx_stop_all_queues(ndev);
bitmap_clear(rdev->priv->opened_ports, rdev->port, 1);
iowrite32(GWCA_TS_IRQ_BIT, rdev->priv->addr + GWTSDID);
if (bitmap_empty(rdev->priv->opened_ports, RSWITCH_NUM_PORTS))
iowrite32(GWCA_TS_IRQ_BIT, rdev->priv->addr + GWTSDID);
list_for_each_entry_safe(ts_info, ts_info2, &rdev->priv->gwca.ts_info_list, list) {
if (ts_info->port != rdev->port)

1
drivers/net/ethernet/renesas/rswitch.h
View file

@ -998,6 +998,7 @@ struct rswitch_private {
struct rcar_gen4_ptp_private *ptp_priv;
struct rswitch_device *rdev[RSWITCH_NUM_PORTS];
DECLARE_BITMAP(opened_ports, RSWITCH_NUM_PORTS);
struct rswitch_gwca gwca;
struct rswitch_etha etha[RSWITCH_NUM_PORTS];