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pch_gbe: correct receive time stamp filtering

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This patch fixes the driver so that multicast PTP event messages can
be recognized by the hardware time stamping unit. The station address
register must be set according to the desired transport type.

[ RC - Rebased Takahiro's changes and wrote a commit message
  explaining the changes. ]

Signed-off-by: Takahiro Shimizu <[email protected]>
Signed-off-by: Richard Cochran <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Takahiro Shimizu 2012-04-20 18:50:34 +00:00 • committed by David S. Miller
commit 358dfb6d77
2 changed files with 20 additions and 4 deletions
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10
drivers/ptp/Kconfig
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@ -78,9 +78,13 @@ config PTP_1588_CLOCK_PCH
depends on PCH_GBE
help
This driver adds support for using the PCH EG20T as a PTP
clock. This clock is only useful if your PTP programs are
getting hardware time stamps on the PTP Ethernet packets
using the SO_TIMESTAMPING API.
clock. The hardware supports time stamping of PTP packets
when using the end-to-end delay (E2E) mechansim. The peer
delay mechansim (P2P) is not supported.
This clock is only useful if your PTP programs are getting
hardware time stamps on the PTP Ethernet packets using the
SO_TIMESTAMPING API.
To compile this driver as a module, choose M here: the module
will be called ptp_pch.