diff options
Diffstat (limited to 'drivers/net/ethernet/tile')
| -rw-r--r-- | drivers/net/ethernet/tile/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/net/ethernet/tile/tilegx.c | 38 |
2 files changed, 16 insertions, 34 deletions
diff --git a/drivers/net/ethernet/tile/Kconfig b/drivers/net/ethernet/tile/Kconfig index 4083ba8839e..f59a6c26533 100644 --- a/drivers/net/ethernet/tile/Kconfig +++ b/drivers/net/ethernet/tile/Kconfig @@ -9,20 +9,10 @@ config TILE_NET select CRC32 select TILE_GXIO_MPIPE if TILEGX select HIGH_RES_TIMERS if TILEGX + select PTP_1588_CLOCK if TILEGX ---help--- This is a standard Linux network device driver for the on-chip Tilera Gigabit Ethernet and XAUI interfaces. To compile this driver as a module, choose M here: the module will be called tile_net. - -config PTP_1588_CLOCK_TILEGX - tristate "Tilera TILE-Gx mPIPE as PTP clock" - select PTP_1588_CLOCK - depends on TILE_NET - depends on TILEGX - ---help--- - This driver adds support for using the mPIPE as a PTP - clock. This clock is only useful if your PTP programs are - getting hardware time stamps on the PTP Ethernet packets - using the SO_TIMESTAMPING API. diff --git a/drivers/net/ethernet/tile/tilegx.c b/drivers/net/ethernet/tile/tilegx.c index 0e9fb3301b1..023237a6572 100644 --- a/drivers/net/ethernet/tile/tilegx.c +++ b/drivers/net/ethernet/tile/tilegx.c @@ -187,10 +187,8 @@ struct tile_net_priv { int echannel; /* mPIPE instance, 0 or 1. */ int instance; -#ifdef CONFIG_PTP_1588_CLOCK_TILEGX /* The timestamp config. */ struct hwtstamp_config stamp_cfg; -#endif }; static struct mpipe_data { @@ -229,14 +227,12 @@ static struct mpipe_data { int first_bucket; int num_buckets; -#ifdef CONFIG_PTP_1588_CLOCK_TILEGX /* PTP-specific data. */ struct ptp_clock *ptp_clock; struct ptp_clock_info caps; /* Lock for ptp accessors. */ struct mutex ptp_lock; -#endif } mpipe_data[NR_MPIPE_MAX] = { [0 ... (NR_MPIPE_MAX - 1)] { @@ -451,20 +447,17 @@ static void tile_net_provide_needed_buffers(void) static void tile_rx_timestamp(struct tile_net_priv *priv, struct sk_buff *skb, gxio_mpipe_idesc_t *idesc) { -#ifdef CONFIG_PTP_1588_CLOCK_TILEGX if (unlikely(priv->stamp_cfg.rx_filter != HWTSTAMP_FILTER_NONE)) { struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb); memset(shhwtstamps, 0, sizeof(*shhwtstamps)); shhwtstamps->hwtstamp = ktime_set(idesc->time_stamp_sec, idesc->time_stamp_ns); } -#endif } /* Get TX timestamp, and store it in the skb. */ static void tile_tx_timestamp(struct sk_buff *skb, int instance) { -#ifdef CONFIG_PTP_1588_CLOCK_TILEGX struct skb_shared_info *shtx = skb_shinfo(skb); if (unlikely((shtx->tx_flags & SKBTX_HW_TSTAMP) != 0)) { struct mpipe_data *md = &mpipe_data[instance]; @@ -477,14 +470,11 @@ static void tile_tx_timestamp(struct sk_buff *skb, int instance) shhwtstamps.hwtstamp = ktime_set(ts.tv_sec, ts.tv_nsec); skb_tstamp_tx(skb, &shhwtstamps); } -#endif } /* Use ioctl() to enable or disable TX or RX timestamping. */ -static int tile_hwtstamp_ioctl(struct net_device *dev, struct ifreq *rq, - int cmd) +static int tile_hwtstamp_set(struct net_device *dev, struct ifreq *rq) { -#ifdef CONFIG_PTP_1588_CLOCK_TILEGX struct hwtstamp_config config; struct tile_net_priv *priv = netdev_priv(dev); @@ -530,9 +520,17 @@ static int tile_hwtstamp_ioctl(struct net_device *dev, struct ifreq *rq, priv->stamp_cfg = config; return 0; -#else - return -EOPNOTSUPP; -#endif +} + +static int tile_hwtstamp_get(struct net_device *dev, struct ifreq *rq) +{ + struct tile_net_priv *priv = netdev_priv(dev); + + if (copy_to_user(rq->ifr_data, &priv->stamp_cfg, + sizeof(priv->stamp_cfg))) + return -EFAULT; + + return 0; } static inline bool filter_packet(struct net_device *dev, void *buf) @@ -814,8 +812,6 @@ static enum hrtimer_restart tile_net_handle_egress_timer(struct hrtimer *t) return HRTIMER_NORESTART; } -#ifdef CONFIG_PTP_1588_CLOCK_TILEGX - /* PTP clock operations. */ static int ptp_mpipe_adjfreq(struct ptp_clock_info *ptp, s32 ppb) @@ -882,12 +878,9 @@ static struct ptp_clock_info ptp_mpipe_caps = { .enable = ptp_mpipe_enable, }; -#endif /* CONFIG_PTP_1588_CLOCK_TILEGX */ - /* Sync mPIPE's timestamp up with Linux system time and register PTP clock. */ static void register_ptp_clock(struct net_device *dev, struct mpipe_data *md) { -#ifdef CONFIG_PTP_1588_CLOCK_TILEGX struct timespec ts; getnstimeofday(&ts); @@ -899,16 +892,13 @@ static void register_ptp_clock(struct net_device *dev, struct mpipe_data *md) if (IS_ERR(md->ptp_clock)) netdev_err(dev, "ptp_clock_register failed %ld\n", PTR_ERR(md->ptp_clock)); -#endif } /* Initialize PTP fields in a new device. */ static void init_ptp_dev(struct tile_net_priv *priv) { -#ifdef CONFIG_PTP_1588_CLOCK_TILEGX priv->stamp_cfg.rx_filter = HWTSTAMP_FILTER_NONE; priv->stamp_cfg.tx_type = HWTSTAMP_TX_OFF; -#endif } /* Helper functions for "tile_net_update()". */ @@ -2099,7 +2089,9 @@ static void tile_net_tx_timeout(struct net_device *dev) static int tile_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) { if (cmd == SIOCSHWTSTAMP) - return tile_hwtstamp_ioctl(dev, rq, cmd); + return tile_hwtstamp_set(dev, rq); + if (cmd == SIOCGHWTSTAMP) + return tile_hwtstamp_get(dev, rq); return -EOPNOTSUPP; } |