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| author | Miroslav Lichvar <mlichvar@redhat.com> | 2018-11-09 13:14:49 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-11-10 06:43:51 +0300 |
| commit | 6fe42e228dc2eb169afcde6f7b70c28175527753 (patch) | |
| tree | f8257c9c34befcfd064a8bca17f2242e86fab333 /drivers/net/ethernet | |
| parent | 018ed23ddc7aa80834f3953364363ac47ec8d127 (diff) | |
| download | linux-6fe42e228dc2eb169afcde6f7b70c28175527753.tar.xz | |
tg3: extend PTP gettime function to read system clock
This adds support for the PTP_SYS_OFFSET_EXTENDED ioctl.
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/broadcom/tg3.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 89295306f161..ce44d208e137 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -6135,10 +6135,16 @@ static int tg3_setup_phy(struct tg3 *tp, bool force_reset) } /* tp->lock must be held */ -static u64 tg3_refclk_read(struct tg3 *tp) +static u64 tg3_refclk_read(struct tg3 *tp, struct ptp_system_timestamp *sts) { - u64 stamp = tr32(TG3_EAV_REF_CLCK_LSB); - return stamp | (u64)tr32(TG3_EAV_REF_CLCK_MSB) << 32; + u64 stamp; + + ptp_read_system_prets(sts); + stamp = tr32(TG3_EAV_REF_CLCK_LSB); + ptp_read_system_postts(sts); + stamp |= (u64)tr32(TG3_EAV_REF_CLCK_MSB) << 32; + + return stamp; } /* tp->lock must be held */ @@ -6229,13 +6235,14 @@ static int tg3_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta) return 0; } -static int tg3_ptp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts) +static int tg3_ptp_gettimex(struct ptp_clock_info *ptp, struct timespec64 *ts, + struct ptp_system_timestamp *sts) { u64 ns; struct tg3 *tp = container_of(ptp, struct tg3, ptp_info); tg3_full_lock(tp, 0); - ns = tg3_refclk_read(tp); + ns = tg3_refclk_read(tp, sts); ns += tp->ptp_adjust; tg3_full_unlock(tp); @@ -6330,7 +6337,7 @@ static const struct ptp_clock_info tg3_ptp_caps = { .pps = 0, .adjfreq = tg3_ptp_adjfreq, .adjtime = tg3_ptp_adjtime, - .gettime64 = tg3_ptp_gettime, + .gettimex64 = tg3_ptp_gettimex, .settime64 = tg3_ptp_settime, .enable = tg3_ptp_enable, }; |