Author: ngie
Date: Fri May 27 21:12:25 2016
New Revision: 300874
URL: https://svnweb.freebsd.org/changeset/base/300874
Log:
Update usage(..)
- Document missing options
- Sync options with ioatcontrol(8).
- Make it clear that the first 2 parameters are always required.
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division
Modified:
head/tools/tools/ioat/ioatcontrol.c
Modified: head/tools/tools/ioat/ioatcontrol.c
==============================================================================
--- head/tools/tools/ioat/ioatcontrol.c Fri May 27 20:45:32 2016
(r300873)
+++ head/tools/tools/ioat/ioatcontrol.c Fri May 27 21:12:25 2016
(r300874)
@@ -49,14 +49,19 @@ static void
usage(void)
{
- printf("Usage: %s [-E|-f|-m] OPTIONS <channel #> <txns> [<bufsize> "
+ printf("Usage: %s [-c period] [-EfmVz] channel-number num-txns
[<bufsize> "
"[<chain-len> [duration]]]\n", getprogname());
- printf(" %s -r [-v] OPTIONS <channel #> <addr> [<bufsize>]\n\n",
+ printf(" %s -r [-c period] [-vVwz] channel-number address
[<bufsize>]\n\n",
getprogname());
- printf(" OPTIONS:\n");
- printf(" -c <period> - Enable interrupt coalescing (us)\n");
- printf(" -V - Enable verification\n");
- printf(" -z - Zero device stats before test\n");
+ printf(" -c period - Enable interrupt coalescing (us)
(default: 0)\n");
+ printf(" -E - Test non-contiguous 8k copy.\n");
+ printf(" -f - Test block fill (default: DMA copy).\n");
+ printf(" -m - Test memcpy instead of DMA.\n");
+ printf(" -r - Issue DMA to or from a specific
address.\n");
+ printf(" -V - Enable verification\n");
+ printf(" -v - <address> is a kernel virtual
address\n");
+ printf(" -w - Write to the specified address\n");
+ printf(" -z - Zero device stats before test\n");
exit(EX_USAGE);
}
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