diff options
| author | Y.b. Lu <yangbo.lu@nxp.com> | 2019-05-23 02:33:29 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-05-24 13:16:32 -0700 |
| commit | d398231219116da5697bbe090e478dd68a2259ed (patch) | |
| tree | ee9ed557c74d819836a8fe8827919fc0d11885fa /drivers/net/ethernet/freescale/enetc/Kconfig | |
| parent | dfb569f2b96e2075bdf80883677d40d86f6b19db (diff) | |
enetc: add hardware timestamping support
This patch is to add hardware timestamping support
for ENETC. On Rx, timestamping is enabled for all
frames. On Tx, we only instruct the hardware to
timestamp the frames marked accordingly by the stack.
Because the RX BD ring dynamic allocation has not been
supported and it is too expensive to use extended RX BDs
if timestamping is not used, a Kconfig option is used to
enable extended RX BDs in order to support hardware
timestamping. This option will be removed once RX BD
ring dynamic allocation is implemented.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/enetc/Kconfig')
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/Kconfig b/drivers/net/ethernet/freescale/enetc/Kconfig index 8429f5c1d810..ed0d010c7cf2 100644 --- a/drivers/net/ethernet/freescale/enetc/Kconfig +++ b/drivers/net/ethernet/freescale/enetc/Kconfig @@ -29,3 +29,13 @@ config FSL_ENETC_PTP_CLOCK packets using the SO_TIMESTAMPING API. If compiled as module (M), the module name is fsl-enetc-ptp. + +config FSL_ENETC_HW_TIMESTAMPING + bool "ENETC hardware timestamping support" + depends on FSL_ENETC || FSL_ENETC_VF + help + Enable hardware timestamping support on the Ethernet packets + using the SO_TIMESTAMPING API. Because the RX BD ring dynamic + allocation has not been supported and it is too expensive to use + extended RX BDs if timestamping is not used, this option enables + extended RX BDs in order to support hardware timestamping. |