Log a message if PTP probing fails; if we then, unexpectedly, get PTP events, only log a message for the first one on each device.
Signed-off-by: Edward Cree <[email protected]> --- drivers/net/ethernet/sfc/ef10.c | 9 ++++++++- drivers/net/ethernet/sfc/net_driver.h | 2 ++ drivers/net/ethernet/sfc/ptp.c | 4 +++- 3 files changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index dcd6be14a430..009bf28bdba5 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -747,7 +747,14 @@ static int efx_ef10_probe(struct efx_nic *efx) if (rc && rc != -EPERM) goto fail5; - efx_ptp_probe(efx, NULL); + rc = efx_ptp_probe(efx, NULL); + /* Failure to probe PTP is not fatal. + * In the case of EPERM, efx_ptp_probe will print its own message (in + * efx_ptp_get_attributes()), so we don't need to. + */ + if (rc && rc != -EPERM) + netif_warn(efx, drv, efx->net_dev, + "Failed to probe PTP, rc=%d\n", rc); #ifdef CONFIG_SFC_SRIOV if ((efx->pci_dev->physfn) && (!efx->pci_dev->is_physfn)) { diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 2e41f2c39c4a..6b8730a24513 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -813,6 +813,7 @@ struct vfdi_status; * @vf_init_count: Number of VFs that have been fully initialised. * @vi_scale: log2 number of vnics per VF. * @ptp_data: PTP state data + * @ptp_warned: has this NIC seen and warned about unexpected PTP events? * @vpd_sn: Serial number read from VPD * @monitor_work: Hardware monitor workitem * @biu_lock: BIU (bus interface unit) lock @@ -968,6 +969,7 @@ struct efx_nic { #endif struct efx_ptp_data *ptp_data; + bool ptp_warned; char *vpd_sn; diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c index caa89bf7603e..3b37d7ded3c4 100644 --- a/drivers/net/ethernet/sfc/ptp.c +++ b/drivers/net/ethernet/sfc/ptp.c @@ -1662,9 +1662,11 @@ void efx_ptp_event(struct efx_nic *efx, efx_qword_t *ev) int code = EFX_QWORD_FIELD(*ev, MCDI_EVENT_CODE); if (!ptp) { - if (net_ratelimit()) + if (!efx->ptp_warned) { netif_warn(efx, drv, efx->net_dev, "Received PTP event but PTP not set up\n"); + efx->ptp_warned = true; + } return; }
