This patch series implements a PHC driver for the Intel 82576 and 82580 devices, as part of the igb driver.
The first patch adds the PHC driver code as a new source module but does not link it into the main igb driver. Because the system time counter is not so very wide, the code implements an overflow counter in software. Every read operation maintains the overflow counter, as does a "delayed work" watchdog. Only the base clock operations are implemented. The hardware does have some ancillary features, but these can be easily added later. The second patch removes the timecompare code and links in the new functions. I have tested the 82580 with good results. However, I don't have the 82576 and so would appreciate testing and feedback. Thanks, Richard Richard Cochran (2): igb: add PTP Hardware Clock code igb: offer a PTP Hardware Clock instead of the timecompare method drivers/net/ethernet/intel/igb/Makefile | 2 +- drivers/net/ethernet/intel/igb/igb.h | 21 +- drivers/net/ethernet/intel/igb/igb_main.c | 167 +----------- drivers/net/ethernet/intel/igb/igb_ptp.c | 450 +++++++++++++++++++++++++++++ 4 files changed, 469 insertions(+), 171 deletions(-) create mode 100644 drivers/net/ethernet/intel/igb/igb_ptp.c -- 1.7.2.5 ------------------------------------------------------------------------------ Systems Optimization Self Assessment Improve efficiency and utilization of IT resources. Drive out cost and improve service delivery. Take 5 minutes to use this Systems Optimization Self Assessment. http://www.accelacomm.com/jaw/sdnl/114/51450054/ _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
