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Commit 9aecda95 authored by Ben Hutchings's avatar Ben Hutchings
Browse files

sfc: Enable PTP clock and timestamping for all functions on EF10 



The SFC9100 family has only one clock per controller, shared by all
functions.  Therefore only create a clock device under the primary
function, and make all other functions refer to the primary's clock
device.

Since PTP functionality is limited to port 0 and PF 0 on the earlier
SFN[56]322F boards, and we also set the primary flag for that
function, we can make the creation of a clock device conditional only
on this flag.

Signed-off-by: default avatarBen Hutchings <bhutchings@solarflare.com>
parent 0bcf4a64

drivers/net/ethernet/sfc/ef10.c

+4 −1
Original line number Diff line number Diff line
@@ -264,6 +264,8 @@ static int efx_ef10_probe(struct efx_nic *efx) 
	if (rc)

		goto fail3;



	efx_ptp_probe(efx, NULL);



	return 0;



fail3:
@@ -472,9 +474,10 @@ static void efx_ef10_remove(struct efx_nic *efx) 
	struct efx_ef10_nic_data *nic_data = efx->nic_data;

	int rc;



	efx_ptp_remove(efx);



	efx_mcdi_mon_remove(efx);



	/* This needs to be after efx_ptp_remove_channel() with no filters */

	efx_ef10_rx_free_indir_table(efx);



	if (nic_data->wc_membase)

drivers/net/ethernet/sfc/ptp.c

+26 −16
Original line number Diff line number Diff line
@@ -248,7 +248,7 @@ struct efx_ptp_timeset { 
 * @start: Address at which MC indicates ready for synchronisation

 * @host_time_pps: Host time at last PPS

 * @current_adjfreq: Current ppb adjustment.

 * @phc_clock: Pointer to registered phc device

 * @phc_clock: Pointer to registered phc device (if primary function)

 * @phc_clock_info: Registration structure for phc device

 * @pps_work: pps work task for handling pps events

 * @pps_workwq: pps work queue
@@ -1163,6 +1163,8 @@ int efx_ptp_probe(struct efx_nic *efx, struct efx_channel *channel) 
	if (rc < 0)

		goto fail3;



	if (efx->mcdi->fn_flags &

	    (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_PRIMARY)) {

		ptp->phc_clock_info = efx_phc_clock_info;

		ptp->phc_clock = ptp_clock_register(&ptp->phc_clock_info,

						    &efx->pci_dev->dev);
@@ -1177,6 +1179,7 @@ int efx_ptp_probe(struct efx_nic *efx, struct efx_channel *channel) 
			rc = -ENOMEM;

			goto fail4;

		}

	}

	ptp->nic_ts_enabled = false;



	return 0;
@@ -1224,10 +1227,12 @@ void efx_ptp_remove(struct efx_nic *efx) 
	skb_queue_purge(&efx->ptp_data->rxq);

	skb_queue_purge(&efx->ptp_data->txq);



	if (efx->ptp_data->phc_clock) {

		destroy_workqueue(efx->ptp_data->pps_workwq);

		ptp_clock_unregister(efx->ptp_data->phc_clock);

	}



	destroy_workqueue(efx->ptp_data->workwq);

	destroy_workqueue(efx->ptp_data->pps_workwq);



	efx_nic_free_buffer(efx, &efx->ptp_data->start);

	kfree(efx->ptp_data);
@@ -1440,6 +1445,9 @@ static int efx_ptp_ts_init(struct efx_nic *efx, struct hwtstamp_config *init) 
void efx_ptp_get_ts_info(struct efx_nic *efx, struct ethtool_ts_info *ts_info)

{

	struct efx_ptp_data *ptp = efx->ptp_data;

	struct efx_nic *primary = efx->primary;



	ASSERT_RTNL();



	if (!ptp)

		return;
@@ -1447,7 +1455,9 @@ void efx_ptp_get_ts_info(struct efx_nic *efx, struct ethtool_ts_info *ts_info) 
	ts_info->so_timestamping |= (SOF_TIMESTAMPING_TX_HARDWARE |

				     SOF_TIMESTAMPING_RX_HARDWARE |

				     SOF_TIMESTAMPING_RAW_HARDWARE);

	ts_info->phc_index = ptp_clock_index(ptp->phc_clock);

	if (primary && primary->ptp_data && primary->ptp_data->phc_clock)

		ts_info->phc_index =

			ptp_clock_index(primary->ptp_data->phc_clock);

	ts_info->tx_types = 1 << HWTSTAMP_TX_OFF | 1 << HWTSTAMP_TX_ON;

	ts_info->rx_filters = ptp->efx->type->hwtstamp_filters;

}