@@ -15380,6 +15380,7 @@ int bnx2x_configure_ptp_filters(struct bnx2x *bp)
REG_WR(bp, rule, BNX2X_PTP_TX_ON_RULE_MASK);
break;
case HWTSTAMP_TX_ONESTEP_SYNC:
+ case HWTSTAMP_TX_ONESTEP_P2P:
BNX2X_ERR("One-step timestamping is not supported\n");
return -ERANGE;
}
@@ -90,6 +90,14 @@ enum hwtstamp_tx_types {
* queue.
*/
HWTSTAMP_TX_ONESTEP_SYNC,
+
+ /*
+ * Same as HWTSTAMP_TX_ONESTEP_SYNC, but also enables time
+ * stamp insertion directly into PDelay_Resp packets. In this
+ * case, neither transmitted Sync nor PDelay_Resp packets will
+ * receive a time stamp via the socket error queue.
+ */
+ HWTSTAMP_TX_ONESTEP_P2P,
};
/* possible values for hwtstamp_config->rx_filter */
@@ -187,6 +187,7 @@ static int net_hwtstamp_validate(struct ifreq *ifr)
case HWTSTAMP_TX_OFF:
case HWTSTAMP_TX_ON:
case HWTSTAMP_TX_ONESTEP_SYNC:
+ case HWTSTAMP_TX_ONESTEP_P2P:
tx_type_valid = 1;
break;
}
The 1588 standard defines one step operation for both Sync and PDelay_Resp messages. Up until now, hardware with P2P one step has been rare, and kernel support was lacking. This patch adds support of the mode in anticipation of new hardware developments. Signed-off-by: Richard Cochran <richardcochran@gmail.com> --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 1 + include/uapi/linux/net_tstamp.h | 8 ++++++++ net/core/dev_ioctl.c | 1 + 3 files changed, 10 insertions(+)