diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c index 47f1f9c3380c..b0563c7761ff 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c @@ -45,6 +45,18 @@ static u64 bnxt_refclk_read(struct bnxt *bp, struct ptp_system_timestamp *sts) return ns; } +static void bnxt_ptp_get_current_time(struct bnxt *bp) +{ + struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; + + if (!ptp) + return; + spin_lock_bh(&ptp->ptp_lock); + WRITE_ONCE(ptp->old_time, ptp->current_time); + ptp->current_time = bnxt_refclk_read(bp, NULL); + spin_unlock_bh(&ptp->ptp_lock); +} + static int bnxt_ptp_gettimex(struct ptp_clock_info *ptp_info, struct timespec64 *ts, struct ptp_system_timestamp *sts) @@ -257,6 +269,32 @@ static u64 bnxt_cc_read(const struct cyclecounter *cc) return bnxt_refclk_read(ptp->bp, NULL); } +static long bnxt_ptp_ts_aux_work(struct ptp_clock_info *ptp_info) +{ + struct bnxt_ptp_cfg *ptp = container_of(ptp_info, struct bnxt_ptp_cfg, + ptp_info); + struct bnxt *bp = ptp->bp; + + bnxt_ptp_get_current_time(bp); + return HZ; +} + +void bnxt_ptp_start(struct bnxt *bp) +{ + struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; + + if (!ptp) + return; + + if (bp->flags & BNXT_FLAG_CHIP_P5) { + spin_lock_bh(&ptp->ptp_lock); + ptp->current_time = bnxt_refclk_read(bp, NULL); + WRITE_ONCE(ptp->old_time, ptp->current_time); + spin_unlock_bh(&ptp->ptp_lock); + ptp_schedule_worker(ptp->ptp_clock, 0); + } +} + static const struct ptp_clock_info bnxt_ptp_caps = { .owner = THIS_MODULE, .name = "bnxt clock", @@ -268,6 +306,7 @@ static const struct ptp_clock_info bnxt_ptp_caps = { .pps = 0, .adjfreq = bnxt_ptp_adjfreq, .adjtime = bnxt_ptp_adjtime, + .do_aux_work = bnxt_ptp_ts_aux_work, .gettimex64 = bnxt_ptp_gettimex, .settime64 = bnxt_ptp_settime, .enable = bnxt_ptp_enable, |