[dpdk-stable] [PATCH] app/testpmd: remove duplicated support for Rx offloading

[Flavia Musatescu <flavia.musatescu@intel.com>]

The testpmd application provides two sets of commands for RX offload
flags configuration. The purpose of this patch is to eliminate this
duplication by removing the old set of commands:
“port config all crc-strip|scatter|rx-cksum|rx-timestamp|hw-vlan|
hw-vlan-filter|hw-vlan-strip|hw-vlan-extend on|off”

The other commands set that can be used instead in order to enable
or disable the same RX offloading flags on all RX queues of a port is:
"port config <port_id> rx_offload crc_strip|scatter|ipv4_cksum|
udp_cksum|tcp_cksum|timestamp|vlan_strip|vlan_filter|vlan_extend on|off"

This patch also fixes the "drop-en" command, which enables packets
dropping on all RX queues of all ports when no receive buffers available
“port config all drop-en on|off”

Fixes: 384161e00627 ("app/testpmd: adjust on the fly VLAN configuration")
Cc: shahafs@mellanox.com
Cc: stable@dpdk.org

Signed-off-by: Flavia Musatescu <flavia.musatescu@intel.com>
---
 app/test-pmd/cmdline.c                      | 120 ++++------------------------
 doc/guides/rel_notes/release_19_08.rst      |   9 +++
 doc/guides/testpmd_app_ug/testpmd_funcs.rst |  81 +------------------
 3 files changed, 25 insertions(+), 185 deletions(-)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index a28362d..eb85548 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -778,11 +778,9 @@ static void cmd_help_long_parsed(void *parsed_result,
 			"port config all max-pkt-len (value)\n"
 			"    Set the max packet length.\n\n"
 
-			"port config all (crc-strip|scatter|rx-cksum|rx-timestamp|hw-vlan|hw-vlan-filter|"
-			"hw-vlan-strip|hw-vlan-extend|drop-en)"
-			" (on|off)\n"
-			"    Set crc-strip/scatter/rx-checksum/hardware-vlan/drop_en"
-			" for ports.\n\n"
+			"port config all drop-en (on|off)\n"
+			"    Enable or disable packet drop on all RX queues of all ports when no "
+			"receive buffers available.\n\n"
 
 			"port config all rss (all|default|ip|tcp|udp|sctp|"
 			"ether|port|vxlan|geneve|nvgre|vxlan-gpe|none|<flowtype_id>)\n"
@@ -2109,112 +2107,24 @@ cmd_config_rx_mode_flag_parsed(void *parsed_result,
 				__attribute__((unused)) void *data)
 {
 	struct cmd_config_rx_mode_flag *res = parsed_result;
-	portid_t pid;
-	int k;
 
 	if (!all_ports_stopped()) {
 		printf("Please stop all ports first\n");
 		return;
 	}
 
-	RTE_ETH_FOREACH_DEV(pid) {
-		struct rte_port *port;
-		uint64_t rx_offloads;
-
-		port = &ports[pid];
-		rx_offloads = port->dev_conf.rxmode.offloads;
-		if (!strcmp(res->name, "crc-strip")) {
-			if (!strcmp(res->value, "on")) {
-				rx_offloads &= ~DEV_RX_OFFLOAD_KEEP_CRC;
-			} else if (!strcmp(res->value, "off")) {
-				rx_offloads |= DEV_RX_OFFLOAD_KEEP_CRC;
-			} else {
-				printf("Unknown parameter\n");
-				return;
-			}
-		} else if (!strcmp(res->name, "scatter")) {
-			if (!strcmp(res->value, "on")) {
-				rx_offloads |= DEV_RX_OFFLOAD_SCATTER;
-			} else if (!strcmp(res->value, "off")) {
-				rx_offloads &= ~DEV_RX_OFFLOAD_SCATTER;
-			} else {
-				printf("Unknown parameter\n");
-				return;
-			}
-		} else if (!strcmp(res->name, "rx-cksum")) {
-			if (!strcmp(res->value, "on"))
-				rx_offloads |= DEV_RX_OFFLOAD_CHECKSUM;
-			else if (!strcmp(res->value, "off"))
-				rx_offloads &= ~DEV_RX_OFFLOAD_CHECKSUM;
-			else {
-				printf("Unknown parameter\n");
-				return;
-			}
-		} else if (!strcmp(res->name, "rx-timestamp")) {
-			if (!strcmp(res->value, "on"))
-				rx_offloads |= DEV_RX_OFFLOAD_TIMESTAMP;
-			else if (!strcmp(res->value, "off"))
-				rx_offloads &= ~DEV_RX_OFFLOAD_TIMESTAMP;
-			else {
-				printf("Unknown parameter\n");
-				return;
-			}
-		} else if (!strcmp(res->name, "hw-vlan")) {
-			if (!strcmp(res->value, "on")) {
-				rx_offloads |= (DEV_RX_OFFLOAD_VLAN_FILTER |
-						DEV_RX_OFFLOAD_VLAN_STRIP);
-			} else if (!strcmp(res->value, "off")) {
-				rx_offloads &= ~(DEV_RX_OFFLOAD_VLAN_FILTER |
-						DEV_RX_OFFLOAD_VLAN_STRIP);
-			} else {
-				printf("Unknown parameter\n");
-				return;
-			}
-		} else if (!strcmp(res->name, "hw-vlan-filter")) {
-			if (!strcmp(res->value, "on"))
-				rx_offloads |= DEV_RX_OFFLOAD_VLAN_FILTER;
-			else if (!strcmp(res->value, "off"))
-				rx_offloads &= ~DEV_RX_OFFLOAD_VLAN_FILTER;
-			else {
-				printf("Unknown parameter\n");
-				return;
-			}
-		} else if (!strcmp(res->name, "hw-vlan-strip")) {
-			if (!strcmp(res->value, "on"))
-				rx_offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
-			else if (!strcmp(res->value, "off"))
-				rx_offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
-			else {
-				printf("Unknown parameter\n");
-				return;
-			}
-		} else if (!strcmp(res->name, "hw-vlan-extend")) {
-			if (!strcmp(res->value, "on"))
-				rx_offloads |= DEV_RX_OFFLOAD_VLAN_EXTEND;
-			else if (!strcmp(res->value, "off"))
-				rx_offloads &= ~DEV_RX_OFFLOAD_VLAN_EXTEND;
-			else {
-				printf("Unknown parameter\n");
-				return;
-			}
-		} else if (!strcmp(res->name, "drop-en")) {
-			if (!strcmp(res->value, "on"))
-				rx_drop_en = 1;
-			else if (!strcmp(res->value, "off"))
-				rx_drop_en = 0;
-			else {
-				printf("Unknown parameter\n");
-				return;
-			}
-		} else {
+	if (!strcmp(res->name, "drop-en")) {
+		if (!strcmp(res->value, "on"))
+			rx_drop_en = 1;
+		else if (!strcmp(res->value, "off"))
+			rx_drop_en = 0;
+		else {
 			printf("Unknown parameter\n");
 			return;
 		}
-		port->dev_conf.rxmode.offloads = rx_offloads;
-		/* Apply Rx offloads configuration */
-		for (k = 0; k < port->dev_info.max_rx_queues; k++)
-			port->rx_conf[k].offloads =
-				port->dev_conf.rxmode.offloads;
+	} else {
+		printf("Unknown parameter\n");
+		return;
 	}
 
 	init_port_config();
@@ -2231,8 +2141,7 @@ cmdline_parse_token_string_t cmd_config_rx_mode_flag_all =
 	TOKEN_STRING_INITIALIZER(struct cmd_config_rx_mode_flag, all, "all");
 cmdline_parse_token_string_t cmd_config_rx_mode_flag_name =
 	TOKEN_STRING_INITIALIZER(struct cmd_config_rx_mode_flag, name,
-					"crc-strip#scatter#rx-cksum#rx-timestamp#hw-vlan#"
-					"hw-vlan-filter#hw-vlan-strip#hw-vlan-extend");
+					"drop-en");
 cmdline_parse_token_string_t cmd_config_rx_mode_flag_value =
 	TOKEN_STRING_INITIALIZER(struct cmd_config_rx_mode_flag, value,
 							"on#off");
@@ -2240,8 +2149,7 @@ cmdline_parse_token_string_t cmd_config_rx_mode_flag_value =
 cmdline_parse_inst_t cmd_config_rx_mode_flag = {
 	.f = cmd_config_rx_mode_flag_parsed,
 	.data = NULL,
-	.help_str = "port config all crc-strip|scatter|rx-cksum|rx-timestamp|hw-vlan|"
-		"hw-vlan-filter|hw-vlan-strip|hw-vlan-extend on|off",
+	.help_str = "port config all drop-en on|off",
 	.tokens = {
 		(void *)&cmd_config_rx_mode_flag_port,
 		(void *)&cmd_config_rx_mode_flag_keyword,
diff --git a/doc/guides/rel_notes/release_19_08.rst b/doc/guides/rel_notes/release_19_08.rst
index c9bd3ce..4838187 100644
--- a/doc/guides/rel_notes/release_19_08.rst
+++ b/doc/guides/rel_notes/release_19_08.rst
@@ -237,6 +237,15 @@ Removed Items
    Also, make sure to start the actual text at the margin.
    =========================================================
 
+* Removed duplicated RX offloading set of commands from app/testpmd:
+  “port config all crc-strip|scatter|rx-cksum|rx-timestamp|hw-vlan|hw-vlan-filter|
+  hw-vlan-strip|hw-vlan-extend on|off”.
+
+  The testpmd commands set that can be used instead in order to enable or disable Rx
+  offloading on all Rx queues of a port is:
+  "port config <port_id> rx_offload crc_strip|scatter|ipv4_cksum|udp_cksum|tcp_cksum|
+  timestamp|vlan_strip|vlan_filter|vlan_extend on|off"
+
 * Removed KNI ethtool, CONFIG_RTE_KNI_KMOD_ETHTOOL, support.
 
 * build: armv8 crypto extension is disabled.
diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index 313e070..67f4339 100644
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -2099,91 +2099,14 @@ Set the maximum packet length::
 
 This is equivalent to the ``--max-pkt-len`` command-line option.
 
-port config - CRC Strip
-~~~~~~~~~~~~~~~~~~~~~~~
-
-Set hardware CRC stripping on or off for all ports::
-
-   testpmd> port config all crc-strip (on|off)
-
-CRC stripping is on by default.
-
-The ``off`` option is equivalent to the ``--disable-crc-strip`` command-line option.
-
-port config - scatter
-~~~~~~~~~~~~~~~~~~~~~~~
-
-Set RX scatter mode on or off for all ports::
-
-   testpmd> port config all scatter (on|off)
-
-RX scatter mode is off by default.
-
-The ``on`` option is equivalent to the ``--enable-scatter`` command-line option.
-
-port config - RX Checksum
-~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Set hardware RX checksum offload to on or off for all ports::
-
-   testpmd> port config all rx-cksum (on|off)
-
-Checksum offload is off by default.
-
-The ``on`` option is equivalent to the ``--enable-rx-cksum`` command-line option.
-
-port config - VLAN
-~~~~~~~~~~~~~~~~~~
-
-Set hardware VLAN on or off for all ports::
-
-   testpmd> port config all hw-vlan (on|off)
-
-Hardware VLAN is off by default.
-
-The ``on`` option is equivalent to the ``--enable-hw-vlan`` command-line option.
-
-port config - VLAN filter
-~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Set hardware VLAN filter on or off for all ports::
-
-   testpmd> port config all hw-vlan-filter (on|off)
-
-Hardware VLAN filter is off by default.
-
-The ``on`` option is equivalent to the ``--enable-hw-vlan-filter`` command-line option.
-
-port config - VLAN strip
-~~~~~~~~~~~~~~~~~~~~~~~~
-
-Set hardware VLAN strip on or off for all ports::
-
-   testpmd> port config all hw-vlan-strip (on|off)
-
-Hardware VLAN strip is off by default.
-
-The ``on`` option is equivalent to the ``--enable-hw-vlan-strip`` command-line option.
-
-port config - VLAN extend
-~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Set hardware VLAN extend on or off for all ports::
-
-   testpmd> port config all hw-vlan-extend (on|off)
-
-Hardware VLAN extend is off by default.
-
-The ``on`` option is equivalent to the ``--enable-hw-vlan-extend`` command-line option.
-
 port config - Drop Packets
 ~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Set packet drop for packets with no descriptors on or off for all ports::
+Enable or disable packet drop on all RX queues of all ports when no receive buffers available::
 
    testpmd> port config all drop-en (on|off)
 
-Packet dropping for packets with no descriptors is off by default.
+Packet dropping when no receive buffers available is off by default.
 
 The ``on`` option is equivalent to the ``--enable-drop-en`` command-line option.
 
-- 
2.7.4