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tg3: PTP - Add the hardware timestamp ioctl 

This patch implements the SIOCSHWTSTAMP ioctl as described in
Documentation/networking/timestamping.txt

[Removed HWTSTAMP_FILTER_ALL handling by returning -ERANGE based on input
 from Richard Cochran.]

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2012-12-03 19:36:59 +00:00 committed by David S. Miller
parent 7d41e49ac2
commit 0a633ac228
1 changed files with 93 additions and 0 deletions
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93
drivers/net/ethernet/broadcom/tg3.c
View File

@ -12760,6 +12760,96 @@ static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
} }
static int tg3_hwtstamp_ioctl(struct net_device *dev,
struct ifreq *ifr, int cmd)
{
struct tg3 *tp = netdev_priv(dev);
struct hwtstamp_config stmpconf;
if (!tg3_flag(tp, PTP_CAPABLE))
return -EINVAL;
if (copy_from_user(&stmpconf, ifr->ifr_data, sizeof(stmpconf)))
return -EFAULT;
if (stmpconf.flags)
return -EINVAL;
switch (stmpconf.tx_type) {
case HWTSTAMP_TX_ON:
tg3_flag_set(tp, TX_TSTAMP_EN);
break;
case HWTSTAMP_TX_OFF:
tg3_flag_clear(tp, TX_TSTAMP_EN);
break;
default:
return -ERANGE;
}
switch (stmpconf.rx_filter) {
case HWTSTAMP_FILTER_NONE:
tp->rxptpctl = 0;
break;
case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V1_EN |
TG3_RX_PTP_CTL_ALL_V1_EVENTS;
break;
case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V1_EN |
TG3_RX_PTP_CTL_SYNC_EVNT;
break;
case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V1_EN |
TG3_RX_PTP_CTL_DELAY_REQ;
break;
case HWTSTAMP_FILTER_PTP_V2_EVENT:
tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_EN |
TG3_RX_PTP_CTL_ALL_V2_EVENTS;
break;
case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_L2_EN |
TG3_RX_PTP_CTL_ALL_V2_EVENTS;
break;
case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_L4_EN |
TG3_RX_PTP_CTL_ALL_V2_EVENTS;
break;
case HWTSTAMP_FILTER_PTP_V2_SYNC:
tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_EN |
TG3_RX_PTP_CTL_SYNC_EVNT;
break;
case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_L2_EN |
TG3_RX_PTP_CTL_SYNC_EVNT;
break;
case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_L4_EN |
TG3_RX_PTP_CTL_SYNC_EVNT;
break;
case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_EN |
TG3_RX_PTP_CTL_DELAY_REQ;
break;
case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_L2_EN |
TG3_RX_PTP_CTL_DELAY_REQ;
break;
case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
tp->rxptpctl = TG3_RX_PTP_CTL_RX_PTP_V2_L4_EN |
TG3_RX_PTP_CTL_DELAY_REQ;
break;
default:
return -ERANGE;
}
if (netif_running(dev) && tp->rxptpctl)
tw32(TG3_RX_PTP_CTL,
tp->rxptpctl | TG3_RX_PTP_CTL_HWTS_INTERLOCK);
return copy_to_user(ifr->ifr_data, &stmpconf, sizeof(stmpconf)) ?
-EFAULT : 0;
}
static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{ {
struct mii_ioctl_data *data = if_mii(ifr); struct mii_ioctl_data *data = if_mii(ifr);
@ -12810,6 +12900,9 @@ static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
return err; return err;
case SIOCSHWTSTAMP:
return tg3_hwtstamp_ioctl(dev, ifr, cmd);
default: default:
/* do nothing */ /* do nothing */
break; break;