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| author | Patrick Ohly <patrick.ohly@intel.com> | 2009-02-12 05:03:43 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-02-15 23:13:27 -0800 |
| commit | 33af6bcc005a826726b48e8775df5d58112bc10b (patch) | |
| tree | f56d49b32b2183e076741b590bb7ebd797d53c99 /drivers/net/igb/e1000_defines.h | |
| parent | c6cb090ba7cd88aec03718dab76e4dad56862cae (diff) | |
| download | blackbird-op-linux-33af6bcc005a826726b48e8775df5d58112bc10b.tar.gz blackbird-op-linux-33af6bcc005a826726b48e8775df5d58112bc10b.zip | |
igb: use timecompare to implement hardware time stamping
Both TX and RX hardware time stamping are implemented. Due to
hardware limitations it is not possible to verify reliably which
packet was time stamped when multiple were pending for sending; this
could be solved by only allowing one packet marked for hardware time
stamping into the queue (not implemented yet).
RX time stamping relies on the flag in the packet descriptor which
marks packets that were time stamped. In "all packet" mode this flag
is not set. TODO: also support that mode (even though it'll suffer
from race conditions).
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/igb/e1000_defines.h')
| -rw-r--r-- | drivers/net/igb/e1000_defines.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h index 5342e231c1d5..79168eeaaa09 100644 --- a/drivers/net/igb/e1000_defines.h +++ b/drivers/net/igb/e1000_defines.h @@ -104,6 +104,7 @@ #define E1000_RXD_STAT_UDPCS 0x10 /* UDP xsum calculated */ #define E1000_RXD_STAT_TCPCS 0x20 /* TCP xsum calculated */ #define E1000_RXD_STAT_DYNINT 0x800 /* Pkt caused INT via DYNINT */ +#define E1000_RXD_STAT_TS 0x10000 /* Pkt was time stamped */ #define E1000_RXD_ERR_CE 0x01 /* CRC Error */ #define E1000_RXD_ERR_SE 0x02 /* Symbol Error */ #define E1000_RXD_ERR_SEQ 0x04 /* Sequence Error */ |
