[PATCH v2] app/testpmd: add flush multicast MAC address command

[Dengdui Huang]

Add command to flush multicast MAC address
Usage:
    mcast_addr flush <port_id> :
    flush multicast MAC address on port_id

Signed-off-by: Dengdui Huang <huangdengdui at huawei.com>
---
 app/test-pmd/cmdline.c                      | 43 +++++++++++++++++++++
 app/test-pmd/config.c                       | 18 +++++++++
 app/test-pmd/testpmd.h                      |  1 +
 doc/guides/testpmd_app_ug/testpmd_funcs.rst |  8 ++++
 4 files changed, 70 insertions(+)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 0d0723f659..d5a3bd2287 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -516,6 +516,9 @@ static void cmd_help_long_parsed(void *parsed_result,
 			"set allmulti (port_id|all) (on|off)\n"
 			"    Set the allmulti mode on port_id, or all.\n\n"
 
+			"mcast_addr flush (port_id)\n"
+			"    To flush the set of multicast addresses.\n\n"
+
 			"set flow_ctrl rx (on|off) tx (on|off) (high_water)"
 			" (low_water) (pause_time) (send_xon) mac_ctrl_frame_fwd"
 			" (on|off) autoneg (on|off) (port_id)\n"
@@ -8561,6 +8564,45 @@ static cmdline_parse_inst_t cmd_mcast_addr = {
 	},
 };
 
+/* *** FLUSH MULTICAST MAC ADDRESS ON PORT *** */
+struct cmd_mcast_addr_flush_result {
+	cmdline_fixed_string_t mcast_addr_cmd;
+	cmdline_fixed_string_t what;
+	uint16_t port_num;
+};
+
+static void cmd_mcast_addr_flush_parsed(void *parsed_result,
+		__rte_unused struct cmdline *cl,
+		__rte_unused void *data)
+{
+	struct cmd_mcast_addr_flush_result *res = parsed_result;
+
+	mcast_addr_flush(res->port_num);
+}
+
+static cmdline_parse_token_string_t cmd_mcast_addr_flush_cmd =
+	TOKEN_STRING_INITIALIZER(struct cmd_mcast_addr_result,
+				 mcast_addr_cmd, "mcast_addr");
+static cmdline_parse_token_string_t cmd_mcast_addr_flush_what =
+	TOKEN_STRING_INITIALIZER(struct cmd_mcast_addr_result, what,
+				 "flush");
+static cmdline_parse_token_num_t cmd_mcast_addr_flush_portnum =
+	TOKEN_NUM_INITIALIZER(struct cmd_mcast_addr_result, port_num,
+				 RTE_UINT16);
+
+static cmdline_parse_inst_t cmd_mcast_addr_flush = {
+	.f = cmd_mcast_addr_flush_parsed,
+	.data = (void *)0,
+	.help_str = "mcast_addr flush <port_id> : "
+		"flush multicast MAC address on port_id",
+	.tokens = {
+		(void *)&cmd_mcast_addr_flush_cmd,
+		(void *)&cmd_mcast_addr_flush_what,
+		(void *)&cmd_mcast_addr_flush_portnum,
+		NULL,
+	},
+};
+
 /* vf vlan anti spoof configuration */
 
 /* Common result structure for vf vlan anti spoof */
@@ -12929,6 +12971,7 @@ static cmdline_parse_ctx_t builtin_ctx[] = {
 	(cmdline_parse_inst_t *)&cmd_set_port_meter_stats_mask,
 	(cmdline_parse_inst_t *)&cmd_show_port_meter_stats,
 	(cmdline_parse_inst_t *)&cmd_mcast_addr,
+	(cmdline_parse_inst_t *)&cmd_mcast_addr_flush,
 	(cmdline_parse_inst_t *)&cmd_set_vf_vlan_anti_spoof,
 	(cmdline_parse_inst_t *)&cmd_set_vf_mac_anti_spoof,
 	(cmdline_parse_inst_t *)&cmd_set_vf_vlan_stripq,
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 11f3a22048..d66d1db37c 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -6802,6 +6802,24 @@ mcast_addr_remove(portid_t port_id, struct rte_ether_addr *mc_addr)
 		mcast_addr_pool_append(port, mc_addr);
 }
 
+void
+mcast_addr_flush(portid_t port_id)
+{
+	int ret;
+
+	if (port_id_is_invalid(port_id, ENABLED_WARN))
+		return;
+
+	ret = rte_eth_dev_set_mc_addr_list(port_id, NULL, 0);
+	if (ret != 0) {
+		fprintf(stderr,
+			"Failed to flush the set of filtered addresses on port %u\n",
+			port_id);
+		return;
+	}
+	mcast_addr_pool_destroy(port_id);
+}
+
 void
 port_dcb_info_display(portid_t port_id)
 {
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index f1df6a8faf..65d3634f6a 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -1176,6 +1176,7 @@ void show_mcast_macs(portid_t port_id);
 /* Functions to manage the set of filtered Multicast MAC addresses */
 void mcast_addr_add(portid_t port_id, struct rte_ether_addr *mc_addr);
 void mcast_addr_remove(portid_t port_id, struct rte_ether_addr *mc_addr);
+void mcast_addr_flush(portid_t port_id);
 void port_dcb_info_display(portid_t port_id);
 
 uint8_t *open_file(const char *file_path, uint32_t *size);
diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index a182479ab2..c3ab1507c4 100644
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -1320,6 +1320,14 @@ filtered by port::
 
    testpmd> mcast_addr remove (port_id) (mcast_addr)
 
+mcast_addr flush
+~~~~~~~~~~~~~~~~
+
+To flush the set of multicast addresses
+filtered by port::
+
+   testpmd> mcast_addr flush (port_id)
+
 mac_addr add (for VF)
 ~~~~~~~~~~~~~~~~~~~~~
 
-- 
2.33.0