Date: Thu, 5 May 2011 02:38:08 +0000 (UTC) From: Navdeep Parhar <np@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/dev/cxgbe t4_sge.c src/sys/modules/cxgbe/if_cxgbe Makefile Message-ID: <201105050238.p452cUn5088632@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
np 2011-05-05 02:38:08 UTC FreeBSD src repository Modified files: sys/dev/cxgbe t4_sge.c sys/modules/cxgbe/if_cxgbe Makefile Log: SVN rev 221477 on 2011-05-05 02:38:08Z by np T4 packet timestamps. Reference code that shows how to get a packet's timestamp out of cxgbe(4). Disabled by default because we don't have a standard way today to pass this information up the stack. The timestamp is 60 bits wide and each increment represents 1 tick of the T4's core clock. As an example, the timestamp granularity is ~4.4ns for this card: # sysctl dev.t4nex.0.core_clock dev.t4nex.0.core_clock: 228125 MFC after: 1 week Revision Changes Path 1.18 +22 -1 src/sys/dev/cxgbe/t4_sge.c 1.2 +3 -0 src/sys/modules/cxgbe/if_cxgbe/Makefile
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201105050238.p452cUn5088632>