diff options
| author |   Ben Hutchings <bhutchings@solarflare.com> | 2013-12-05 17:24:06 +0000 |
|---|---|---|
| committer | Ben Hutchings <bhutchings@solarflare.com> | 2013-12-06 22:27:51 +0000 |
| commit | cd6fe65e923175e4f2e9fb585b1d78c6bf580fc6 (patch) | |
| tree | e0d930a11c577fcab34932e37f3a292de28c95ee /drivers/net/ethernet/sfc | |
| parent | sfc: Stop/re-start PTP when stopping/starting the datapath. (diff) | |
| download | linux-dev-cd6fe65e923175e4f2e9fb585b1d78c6bf580fc6.tar.xz linux-dev-cd6fe65e923175e4f2e9fb585b1d78c6bf580fc6.zip | |
sfc: Maintain current frequency adjustment when applying a time offset
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>
Diffstat (limited to 'drivers/net/ethernet/sfc')
| -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 9bd99edf3f95..3dd39dcfe36b 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), |