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modprobe: ERROR: could not insert 'exanic': Required key not available This happened on a new system of ours. The fix was to change a BIOS setting from Windows to "Other OS". This then changed the "Secure boot" setup of the host and the module could be ...
Received packets : Ignored vs Error vs Dropped Looking at a sample from exanic-config: _RX packets: 1514936895 ignored: 20578657 error: 145683 dropped: 0_ REGARDING EXANIC-CONFIG: The "RX Packets" counter refers to the number of packets received to NI...
This problem occurs due to Linux memory fragmentation. The function needs to allocate contiguous memory to operate. If a machine is up for a long time (especially if it undergoes heavy memory churn), memory can become fragmented and congested which limits...
The following thresholds in degrees Celsius are set in our software:  Mainboard: target=40, alert=50, critical=70 (deg C)  Crosspoint: target=60, alert = 70, critical = 80 (deg C)  Linecards: target=50, alert=55, critical=70 (deg C) The Fusion softwar...
We use sockperf for testing because it is open-source, well understood and has similar properties to real applications. For this example we use the ExaNIC X10. The ExaNIC X4 is our first generation NIC so it will be a bit slower than the X10 ( about 170...
LICENSE FILES Each ExaLINK Fusion device requires a license file from Exablaze. The license file enables usage of the Fusion, firmware upgrades as well as any additional features which may have been purchased. Full details on ExaLINK Fusion licenses ca...
Older Fusion SFP line cards("SFP-16A") are not interoperable with the newer version SFP or QSFP line cards, you can only run with 1,2 or 3 bays of the older SFP version.  You can run your Fusion with a mix of the newer SFP  ("SFP-16B") and QSFP line cards...
The "Rollover timer fired at an unexpected time" message is a warning message from the ExaNIC driver code that extends the 32 bit time provided by the ExaNIC to 64 bits, which works by setting a timer to fire when the time counter is expected to wrap arou...
This error message "modprobe: FATAL: Module exanic not found" can be caused by two issues, when using the exanic driver delivered by dkms:- * If the module is built for the running kernel and the system cannot find it to load into the system, in which ...
Sometimes, users will see the following in their kernel logs: [Sep24 20:53] exanic 0000:1a:00.0 enp26s0: tx timestamping failed [Sep24 22:05] exanic 0000:1a:00.0 enp26s0: tx timestamping failed [Sep24 23:55] exanic 0000:1a:00.0 enp26s0: tx timestamping...
* FOR MAXIMUM PERFORMANCE, LOW LATENCY NETWORKS REQUIRE SMALL BUFFERS AND LOW PORT COUNTS. * In a perfect low latency network, the ideal buffer size should be 0! * Every 1kB of buffering can add ~1000ns of extra latency to the critical path * Wor...
WE DO HAVE TWO SUPPORTED WAYS TO SEND TCP FRAMES FROM THE FDK, both use our ExaSOCK TCP/IP library.  1) The first way is to use the FDK, libexanic and exasock "extensions" mode: In this mode:  - You use exasock software to establish the initial  TCP sess...
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