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authorTakahiro Shimizu <tshimizu818@gmail.com>2012-04-20 14:50:34 -0400
committerDavid S. Miller <davem@davemloft.net>2012-04-21 15:27:45 -0400
commit358dfb6d77c016af764c0f7007697e5f5bc322c2 (patch)
treeaa2636c3b81bbfa9cf521fc8a474d8e4a77bbbfe /drivers/ptp/Kconfig
parenta6891ac70c99be5312c9aea9e38169e4cbb4f099 (diff)
pch_gbe: correct receive time stamp filtering
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 <tshimizu818@gmail.com> Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/ptp/Kconfig')
-rw-r--r--drivers/ptp/Kconfig10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/ptp/Kconfig b/drivers/ptp/Kconfig
index cd9bc3b129bc..5648dad71fb3 100644
--- a/drivers/ptp/Kconfig
+++ b/drivers/ptp/Kconfig
@@ -78,9 +78,13 @@ config PTP_1588_CLOCK_PCH
78 depends on PCH_GBE 78 depends on PCH_GBE
79 help 79 help
80 This driver adds support for using the PCH EG20T as a PTP 80 This driver adds support for using the PCH EG20T as a PTP
81 clock. This clock is only useful if your PTP programs are 81 clock. The hardware supports time stamping of PTP packets
82 getting hardware time stamps on the PTP Ethernet packets 82 when using the end-to-end delay (E2E) mechansim. The peer
83 using the SO_TIMESTAMPING API. 83 delay mechansim (P2P) is not supported.
84
85 This clock is only useful if your PTP programs are getting
86 hardware time stamps on the PTP Ethernet packets using the
87 SO_TIMESTAMPING API.
84 88
85 To compile this driver as a module, choose M here: the module 89 To compile this driver as a module, choose M here: the module
86 will be called ptp_pch. 90 will be called ptp_pch.