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all T4 and T5 based cards and is useful for analyzing TSO, LRO, TOE, and for general purpose monitoring without tapping any cxgbe or cxl ifnet directly. Tracers on the T4/T5 chips provide access to Ethernet frames exactly as they were received from or transmitted on the wire. On transmit, a tracer will capture a frame after TSO segmentation, hw VLAN tag insertion, hw L3 & L4 checksum insertion, etc. It will also capture frames generated by the TCP offload engine (TOE traffic is normally invisible to the kernel). On receive, a tracer will capture a frame before hw VLAN extraction, runt filtering, other badness filtering, before the steering/drop/L2-rewrite filters or the TOE have had a go at it, and of course before sw LRO in the driver. There are 4 tracers on a chip. A tracer can trace only in one direction (tx or rx). For now cxgbetool will set up tracers to capture the first 128B of every transmitted or received frame on a given port. This is a small subset of what the hardware can do. A pseudo ifnet with the same name as the nexus driver (t4nex0 or t5nex0) will be created for tracing. The data delivered to this ifnet is an additional copy made inside the chip. Normal delivery to cxgbe<n> or cxl<n> will be made as usual. /* watch cxl0, which is the first port hanging off t5nex0. */ # cxgbetool t5nex0 tracer 0 tx0 (watch what cxl0 is transmitting) # cxgbetool t5nex0 tracer 1 rx0 (watch what cxl0 is receiving) # cxgbetool t5nex0 tracer list # tcpdump -i t5nex0 <== all that cxl0 sees and puts on the wire If you were doing TSO, a tcpdump on cxl0 may have shown you ~64K "frames" with no L3/L4 checksum but this will show you the frames that were actually transmitted. /* all done */ # cxgbetool t5nex0 tracer 0 disable # cxgbetool t5nex0 tracer 1 disable # cxgbetool t5nex0 tracer list # ifconfig t5nex0 destroy |
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| .. | ||
| aac | ||
| ansify | ||
| ath | ||
| bootparttest | ||
| build_option_survey | ||
| bus_autoconf | ||
| cd2dvd | ||
| cfi | ||
| commitsdb | ||
| crypto | ||
| cxgbetool | ||
| cxgbtool | ||
| editing | ||
| epfe | ||
| ether_reflect | ||
| find-sb | ||
| fixwhite | ||
| gdb_regofs | ||
| genericize | ||
| hcomp | ||
| html-mv | ||
| ifinfo | ||
| ifpifa | ||
| ipw | ||
| iso | ||
| iwi | ||
| kdrv | ||
| kernelcruft | ||
| kerninclude | ||
| kernxref | ||
| kttcp | ||
| makeroot | ||
| mcgrab | ||
| mctest | ||
| mfi | ||
| mid | ||
| mtxstat | ||
| mwl | ||
| nanobsd | ||
| ncpus | ||
| net80211 | ||
| netmap | ||
| netrate | ||
| notescheck | ||
| npe | ||
| nxge | ||
| pciroms | ||
| pirtool | ||
| portsinfo | ||
| prstats | ||
| release | ||
| scsi-defects | ||
| shlib-compat | ||
| sysbuild | ||
| syscall_timing | ||
| sysdoc | ||
| termcap | ||
| tinybsd | ||
| tionxcl | ||
| track | ||
| umastat | ||
| usb | ||
| vhba | ||
| vimage | ||
| vop_table | ||
| vxge | ||
| whereintheworld | ||
| wtap | ||
| zfsboottest | ||
| README | ||
# $FreeBSD$ This directory is for tools. A tool is something which is sometimes useful, and doesn't fit any of the other categories. Please make a subdir per program, and add a brief description to this file. ansify Convert K&R-style function definitions to ANSI style ath Tools specific to the Atheros 802.11 support cfi Common Flash Interface (CFI) tool commitsdb A tool for reconstructing commit history using md5 checksums of the commit logs. crypto Test and exercise tools related to the crypto framework cxgbetool A tool for the cxgbe(4) driver. cxgbtool A tool for the cxgb(4) driver. diffburst OBSOLETE: equivalent functionality is available via split -p. For example: "split -p ^diff < patchfile". See split(1). editing Editor modes and the like to help editing FreeBSD code. epfe Extract printing filter examples from printing.sgml. ether_reflect An Ethernet packet reflector for low level testing. find-sb Scan a disk for possible filesystem superblocks. gdb_regofs A simple tool that prints out a register offset table for mapping gdb(1) register numbers to struct reg and struct fpreg offsets. The tool is useful on selected platforms only. genericize Turn a kernel config into something that can more easily be diffed against the appropriate GENERIC. hcomp Compress header files by removing comments and whitespace. html-mv Rename HTML generated filenames to human readable filenames. ifinfo Uses the interface MIB to print out all the information an interface exports in an ugly form. iso Tool to compare the iso3166 and iso639 files in /usr/share/misc with the data from the master sites. iwi Tools specific to the Intel PRO/Wireless 2200BG/2225BG/2915ABG support. kdrv KernelDriver; add/list/remove third-party kernel driver source to/in/from a kernel source tree. kernelcruft Shellscript to find orphaned *.c files in /sys kerninclude Shellscript to find unused #includes in the kernel. kernxref Shellscript to cross reference symbols in the LINT kernel. kttcp An in-kernel version of the ttcp network performance tool mctest A multicast test program mid Create a Message-ID database for mailing lists. mwl Tools specific to the Marvell 88W8363 support ncpus Count the number of processors netmap Test applications for netmap(4) notescheck Check for missing devices and options in NOTES files. npe Tools specific to the Intel IXP4XXX NPE device nxge A diagnostic tool for the nxge(4) driver pciid Generate src/share/misc/pci_vendors. pciroms A tool for dumping PCI ROM images. WARNING: alpha quality. pirtool A tool for dumping the $PIR table on i386 machines at runtime. portsinfo Generate list of new ports for last two weeks. prstats Generate statistics about the PR database. recoverdisk Copy as much data as possible from a defective disk. scsi-defects Get at the primary or grown defect list of a SCSI disk. sysdoc Build a manual page with available sysctls for a specific kernel configuration. tinybsd Script to build FreeBSD embedded systems. track Track the progress of a world / kernel build vimage An interim utility for managing the virtualized network stack infrastructure. vop_table Generates a HTML document that shows all the VOP's in the kernel. vxge A diagnostic tool for the vxge(4) driver whereintheworld Summarizes "make world" output.