diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-01-13 13:21:03 -0400 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-01-13 13:21:03 -0400 |
| commit | c0fe82baaeb2719f910359684c0817057f79a84a (patch) | |
| tree | 74d879664c964efbf64ee51b5aa5a582fa868635 /drivers/net/ethernet/intel/igc/igc_ptp.c | |
| parent | c40238e3b8c98993e3c70057f6099e24cc2380f7 (diff) | |
| parent | df0cc57e057f18e44dac8e6c18aba47ab53202f9 (diff) | |
Merge tag 'v5.16' into rdma.git for-next
To resolve minor conflict in:
drivers/infiniband/hw/mlx5/mlx5_ib.h
By merging both hunks.
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_ptp.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_ptp.c b/drivers/net/ethernet/intel/igc/igc_ptp.c index 30568e3544cd..4f9245aa79a1 100644 --- a/drivers/net/ethernet/intel/igc/igc_ptp.c +++ b/drivers/net/ethernet/intel/igc/igc_ptp.c @@ -768,7 +768,20 @@ int igc_ptp_get_ts_config(struct net_device *netdev, struct ifreq *ifr) */ static bool igc_is_crosststamp_supported(struct igc_adapter *adapter) { - return IS_ENABLED(CONFIG_X86_TSC) ? pcie_ptm_enabled(adapter->pdev) : false; + if (!IS_ENABLED(CONFIG_X86_TSC)) + return false; + + /* FIXME: it was noticed that enabling support for PCIe PTM in + * some i225-V models could cause lockups when bringing the + * interface up/down. There should be no downsides to + * disabling crosstimestamping support for i225-V, as it + * doesn't have any PTP support. That way we gain some time + * while root causing the issue. + */ + if (adapter->pdev->device == IGC_DEV_ID_I225_V) + return false; + + return pcie_ptm_enabled(adapter->pdev); } static struct system_counterval_t igc_device_tstamp_to_system(u64 tstamp) |