firehose: Document -r/--ring-size argument

snabbco · Jul 23, 2015 · ca6d988 · ca6d988
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commit ca6d988
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/program/firehose/README b/src/program/firehose/README
@@ -19,3 +19,5 @@ Options:
   -e, --example        Print instructions for compiling an example library.
   -i PCI, --input PCI  Receive packets from port with PCI address.
   -t SECONDS, --time SECONDS
+  -r N, --ring-size N  Set the number of packets in the NIC DMA receive queue.
+                       The ring size must be a power of two up to 32768.