[dpdk-dev] [PATCH v3] app/testpmd: add option to enable lro

[Olivier Matz <olivier.matz@6wind.com>]

Introduce a new argument '--enable-lro' to ask testpmd to enable the LRO
feature on enabled ports, like it's done for '--enable-rx-cksum' for
instance.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---

v2 -> v3:
- add documentation for this new option

 app/test-pmd/parameters.c             | 4 ++++
 doc/guides/testpmd_app_ug/run_app.rst | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/app/test-pmd/parameters.c b/app/test-pmd/parameters.c
index 6a6a07e..c45f78a 100644
--- a/app/test-pmd/parameters.c
+++ b/app/test-pmd/parameters.c
@@ -149,6 +149,7 @@ usage(char* progname)
 	       "If the drop-queue doesn't exist, the packet is dropped. "
 	       "By default drop-queue=127.\n");
 	printf("  --crc-strip: enable CRC stripping by hardware.\n");
+	printf("  --enable-lro: enable large receive offload.\n");
 	printf("  --enable-rx-cksum: enable rx hardware checksum offload.\n");
 	printf("  --disable-hw-vlan: disable hardware vlan.\n");
 	printf("  --disable-hw-vlan-filter: disable hardware vlan filter.\n");
@@ -524,6 +525,7 @@ launch_args_parse(int argc, char** argv)
 		{ "pkt-filter-size",            1, 0, 0 },
 		{ "pkt-filter-drop-queue",      1, 0, 0 },
 		{ "crc-strip",                  0, 0, 0 },
+		{ "enable-lro",                 0, 0, 0 },
 		{ "enable-rx-cksum",            0, 0, 0 },
 		{ "enable-scatter",             0, 0, 0 },
 		{ "disable-hw-vlan",            0, 0, 0 },
@@ -764,6 +766,8 @@ launch_args_parse(int argc, char** argv)
 			}
 			if (!strcmp(lgopts[opt_idx].name, "crc-strip"))
 				rx_mode.hw_strip_crc = 1;
+			if (!strcmp(lgopts[opt_idx].name, "enable-lro"))
+				rx_mode.enable_lro = 1;
 			if (!strcmp(lgopts[opt_idx].name, "enable-scatter"))
 				rx_mode.enable_scatter = 1;
 			if (!strcmp(lgopts[opt_idx].name, "enable-rx-cksum"))
diff --git a/doc/guides/testpmd_app_ug/run_app.rst b/doc/guides/testpmd_app_ug/run_app.rst
index 7712bd2..4060036 100644
--- a/doc/guides/testpmd_app_ug/run_app.rst
+++ b/doc/guides/testpmd_app_ug/run_app.rst
@@ -285,6 +285,10 @@ The commandline options are:
 
     Enable hardware CRC stripping.
 
+*   ``enable-lro``
+
+    Enable large receive offload.
+
 *   ``--enable-rx-cksum``
 
     Enable hardware RX checksum offload.
-- 
2.8.1