diff options
| author | Pavan Chebbi <pavan.chebbi@broadcom.com> | 2021-07-28 21:11:44 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-28 22:23:33 +0300 |
| commit | 099fdeda659d2071a97753a6479d13342ff2b285 (patch) | |
| tree | 94ee08c614d3a1070e371dcfb06d8256b9330265 /drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c | |
| parent | 9e518f25802cc13adcdb26adaaccfc7e9de80d44 (diff) | |
| download | linux-099fdeda659d2071a97753a6479d13342ff2b285.tar.xz | |
bnxt_en: Event handler for PPS events
Once the PPS pins are configured, the FW can report
PPS values using ASYNC event. This patch adds the
ASYNC event handler and subsequent reporting of the
events to kernel.
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c index c389a2a65a90..e33e311e2341 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c @@ -155,6 +155,33 @@ static int bnxt_ptp_adjfreq(struct ptp_clock_info *ptp_info, s32 ppb) return rc; } +void bnxt_ptp_pps_event(struct bnxt *bp, u32 data1, u32 data2) +{ + struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; + struct ptp_clock_event event; + u64 ns, pps_ts; + + pps_ts = EVENT_PPS_TS(data2, data1); + spin_lock_bh(&ptp->ptp_lock); + ns = timecounter_cyc2time(&ptp->tc, pps_ts); + spin_unlock_bh(&ptp->ptp_lock); + + switch (EVENT_DATA2_PPS_EVENT_TYPE(data2)) { + case ASYNC_EVENT_CMPL_PPS_TIMESTAMP_EVENT_DATA2_EVENT_TYPE_INTERNAL: + event.pps_times.ts_real = ns_to_timespec64(ns); + event.type = PTP_CLOCK_PPSUSR; + event.index = EVENT_DATA2_PPS_PIN_NUM(data2); + break; + case ASYNC_EVENT_CMPL_PPS_TIMESTAMP_EVENT_DATA2_EVENT_TYPE_EXTERNAL: + event.timestamp = ns; + event.type = PTP_CLOCK_EXTTS; + event.index = EVENT_DATA2_PPS_PIN_NUM(data2); + break; + } + + ptp_clock_event(bp->ptp_cfg->ptp_clock, &event); +} + static int bnxt_ptp_cfg_pin(struct bnxt *bp, u8 pin, u8 usage) { struct hwrm_func_ptp_pin_cfg_input req = {0}; |