diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2013-12-05 17:24:06 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-15 23:31:39 (GMT) |
| commit | 04b27016f879f062f30efd7361f22d650ede269d (patch) | |
| tree | 8f9addd48b40dd1adf0a4cd5b999592a3d5188d6 /drivers/net/ethernet | |
| parent | ff525bdf014c3dcc0656b297f4371c1f5a23739b (diff) | |
| download | linux-fsl-qoriq-04b27016f879f062f30efd7361f22d650ede269d.tar.xz | |
sfc: Maintain current frequency adjustment when applying a time offset
[ Upstream commit cd6fe65e923175e4f2e9fb585b1d78c6bf580fc6 ]
There is a single MCDI PTP operation for setting the frequency
adjustment and applying a time offset to the hardware clock. When
applying a time offset we should not change the frequency adjustment.
These two operations can now be requested separately but this requires
a flash firmware update. Keep using the single operation, but
remember and repeat the previous frequency adjustment.
Fixes: 7c236c43b838 ('sfc: Add support for IEEE-1588 PTP')
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/sfc/ptp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c index 9bd99ed..3dd39dc 100644 --- a/drivers/net/ethernet/sfc/ptp.c +++ b/drivers/net/ethernet/sfc/ptp.c @@ -1426,7 +1426,7 @@ static int efx_phc_adjfreq(struct ptp_clock_info *ptp, s32 delta) if (rc != 0) return rc; - ptp_data->current_adjfreq = delta; + ptp_data->current_adjfreq = adjustment_ns; return 0; } @@ -1441,7 +1441,7 @@ static int efx_phc_adjtime(struct ptp_clock_info *ptp, s64 delta) MCDI_SET_DWORD(inbuf, PTP_IN_OP, MC_CMD_PTP_OP_ADJUST); MCDI_SET_DWORD(inbuf, PTP_IN_PERIPH_ID, 0); - MCDI_SET_QWORD(inbuf, PTP_IN_ADJUST_FREQ, 0); + MCDI_SET_QWORD(inbuf, PTP_IN_ADJUST_FREQ, ptp_data->current_adjfreq); MCDI_SET_DWORD(inbuf, PTP_IN_ADJUST_SECONDS, (u32)delta_ts.tv_sec); MCDI_SET_DWORD(inbuf, PTP_IN_ADJUST_NANOSECONDS, (u32)delta_ts.tv_nsec); return efx_mcdi_rpc(efx, MC_CMD_PTP, inbuf, sizeof(inbuf), |