freebsd-nq/sys/dev/cxgb
Navdeep Parhar 27d1c65e8e cxgb(4): add knob to get packet timestamps from the hardware.
The T3 ASIC can provide an incoming packet's timestamp instead of its RSS hash.
The timestamp is just a counter running off the card's clock.  With a 175MHz
clock an increment represents ~5.7ns and the 32 bit value wraps around in ~25s.

# sysctl -d dev.cxgbc.0.pkt_timestamp
dev.cxgbc.0.pkt_timestamp: provide packet timestamp instead of connection hash

# sysctl -d dev.cxgbc.0.core_clock
dev.cxgbc.0.core_clock: core clock frequency (in KHz)
# sysctl dev.cxgbc.0.core_clock
dev.cxgbc.0.core_clock: 175000
2010-06-12 22:33:04 +00:00
..
common Multiple fixes related to queue set sizing and resources: 2010-03-31 00:27:49 +00:00
sys Switch to our preferred 2-clause BSD license. 2010-05-05 20:39:02 +00:00
ulp There is no need to test __FreeBSD_version for features that have 2010-02-24 10:16:18 +00:00
bin2h.pl
cxgb_adapter.h cxgb(4): add knob to get packet timestamps from the hardware. 2010-06-12 22:33:04 +00:00
cxgb_include.h
cxgb_ioctl.h Add support for hardware filters to cxgb(4). The T3 chip can inspect 2010-05-05 00:41:40 +00:00
cxgb_main.c make format string a string literal. 2010-06-12 22:24:39 +00:00
cxgb_offload.c
cxgb_offload.h There is no need to test __FreeBSD_version for features that have 2010-02-24 10:16:18 +00:00
cxgb_osdep.h There is no need to test __FreeBSD_version for features that have 2010-02-24 10:16:18 +00:00
cxgb_sge.c cxgb(4): add knob to get packet timestamps from the hardware. 2010-06-12 22:33:04 +00:00
cxgb_t3fw.c
cxgb_t3fw.h T3 firmware 7.8.0 for cxgb(4) 2009-12-01 22:23:15 +00:00
t3b_protocol_sram.h
t3b_tp_eeprom.h
t3c_protocol_sram.h
t3c_tp_eeprom.h
t3cdev.h