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| author |   Naveen Mamindlapalli <naveenm@marvell.com> | 2022-02-21 12:15:07 +0530 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-02-21 13:07:48 +0000 |
| commit | 74c1b2338e0e6fa2b84abbdf6bf0e4d5113b6eea (patch) | |
| tree | 3e31832cad08f19e22fb5f366702d8f2c94cb7cd /drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h | |
| parent | Merge branch 'bonding-ipv6-NA-NS-monitor' (diff) | |
| download | linux-dev-74c1b2338e0e6fa2b84abbdf6bf0e4d5113b6eea.tar.xz linux-dev-74c1b2338e0e6fa2b84abbdf6bf0e4d5113b6eea.zip | |
octeontx2-pf: cn10k: add support for new ptp timestamp format
The cn10k hardware ptp timestamp format has been modified primarily
to support 1-step ptp clock. The 64-bit timestamp used by hardware is
split into two 32-bit fields, the upper one holds seconds, the lower
one nanoseconds. A new register (PTP_CLOCK_SEC) has been added that
returns the current seconds value. The nanoseconds register PTP_CLOCK_HI
resets after every second. The cn10k RPM block provides Rx/Tx timestamps
to the NIX block using the new timestamp format. The software can read
the current timestamp in nanoseconds by reading both PTP_CLOCK_SEC &
PTP_CLOCK_HI registers.
This patch provides support for new timestamp format.
Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: Rakesh Babu Saladi <rsaladi2@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h index 7724f17ec31f..65e31a2210d9 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h @@ -17,6 +17,7 @@ #include <linux/soc/marvell/octeontx2/asm.h> #include <net/pkt_cls.h> #include <net/devlink.h> +#include <linux/time64.h> #include <mbox.h> #include <npc.h> @@ -275,6 +276,8 @@ struct otx2_ptp { u64 thresh; struct ptp_pin_desc extts_config; + u64 (*convert_rx_ptp_tstmp)(u64 timestamp); + u64 (*convert_tx_ptp_tstmp)(u64 timestamp); }; #define OTX2_HW_TIMESTAMP_LEN 8 |