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authorRichard Cochran <richardcochran@gmail.com>2019-12-25 18:16:16 -0800
committerDavid S. Miller <davem@davemloft.net>2019-12-25 19:51:33 -0800
commit767ff483731502a0fc34f34a3a0851aca175eb71 (patch)
tree265c55c97248a89283edc77b50190039f0bed1b4 /net/Kconfig
parent4715f65ffa0520af0680dbfbedbe349f175adaf4 (diff)
downloadlinux-767ff483731502a0fc34f34a3a0851aca175eb71.tar.bz2
net: Add a layer for non-PHY MII time stamping drivers.
While PHY time stamping drivers can simply attach their interface directly to the PHY instance, stand alone drivers require support in order to manage their services. Non-PHY MII time stamping drivers have a control interface over another bus like I2C, SPI, UART, or via a memory mapped peripheral. The controller device will be associated with one or more time stamping channels, each of which sits snoops in on a MII bus. This patch provides a glue layer that will enable time stamping channels to find their controlling device. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/Kconfig')
-rw-r--r--net/Kconfig7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/Kconfig b/net/Kconfig
index bd191f978a23..52af65e5d28c 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -108,9 +108,10 @@ config NETWORK_PHY_TIMESTAMPING
bool "Timestamping in PHY devices"
select NET_PTP_CLASSIFY
help
- This allows timestamping of network packets by PHYs with
- hardware timestamping capabilities. This option adds some
- overhead in the transmit and receive paths.
+ This allows timestamping of network packets by PHYs (or
+ other MII bus snooping devices) with hardware timestamping
+ capabilities. This option adds some overhead in the transmit
+ and receive paths.
If you are unsure how to answer this question, answer N.