Add a flag to print the RSS key and RETA size that are used to compute
balanced traffic. Example:
$ usertools/dpdk-rss-flows.py 4 1.0.0.0 2.2.0.0/24 -k mlx --info
RSS key: 2cc681d15bdbf4f7fca28319db1a3e946b9e38d92c9c03d1ad9944a7d…
RETA size: 4
SRC_IP DST_IP QUEUE
1.0.0.0 2.2.0.1 2
1.0.0.0 2.2.0.2 0
1.0.0.0 2.2.0.4 1
1.0.0.0 2.2.0.6 3
The flag is only available with the default text output.
Signed-off-by: Robin Jarry <rja...@redhat.com>
---
usertools/dpdk-rss-flows.py | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/usertools/dpdk-rss-flows.py b/usertools/dpdk-rss-flows.py
index dfdad33dde8a..cc5d4d22096f 100755
--- a/usertools/dpdk-rss-flows.py
+++ b/usertools/dpdk-rss-flows.py
@@ -351,6 +351,14 @@ def parse_args():
Output in parseable JSON format.
""",
)
+ parser.add_argument(
+ "-i",
+ "--info",
+ action="store_true",
+ help="""
+ Print RETA size and RSS key above the results. Not available with
--json.
+ """,
+ )
args = parser.parse_args()
@@ -359,6 +367,9 @@ def parse_args():
f"{args.ip_src} and {args.ip_dst} don't have the same protocol
version"
)
+ if args.json and args.info:
+ parser.error("--json and --info are mutually exclusive")
+
if args.rss_key in DEFAULT_DRIVERS:
driver_info = DEFAULT_DRIVERS[args.rss_key]
else:
@@ -441,6 +452,11 @@ def main():
cells.append(r)
rows.append(tuple(cells))
+ if args.info:
+ print(f"RSS key: {binascii.hexlify(args.rss_key).decode()}")
+ print(f"RETA size: {args.reta_size}")
+ print()
+
fmt = [f"%-{w}s" for w in widths]
fmt[-1] = "%s" # avoid trailing whitespace
fmt = " ".join(fmt)
--
2.41.0
