When a NIC is reset, a message will show it.
And then user can run the command "reset_port port_id"
to process it.

Signed-off-by: Wei Dai <wei....@intel.com>
---
 app/test-pmd/cmdline.c | 31 +++++++++++++++++++++++++++++++
 app/test-pmd/config.c  | 13 +++++++++++++
 app/test-pmd/testpmd.h |  1 +
 3 files changed, 45 insertions(+)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index ff8ffd2..90f6bde 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -2588,6 +2588,36 @@ cmdline_parse_inst_t cmd_stop = {
        },
 };
 
+/* *** reset a port *** */
+struct cmd_reset_port_result {
+       cmdline_fixed_string_t command;
+       uint8_t port_id;
+};
+
+static void cmd_reset_port_parsed(__attribute__((unused)) void *parsed_result,
+                           __attribute__((unused)) struct cmdline *cl,
+                           __attribute__((unused)) void *data)
+{
+       struct cmd_reset_port_result *res = parsed_result;
+       reset_port(res->port_id);
+}
+
+cmdline_parse_token_string_t cmd_reset_port_cmd =
+       TOKEN_STRING_INITIALIZER(struct cmd_reset_port_result, command, 
"reset_port");
+cmdline_parse_token_num_t cmd_reset_port_id =
+       TOKEN_NUM_INITIALIZER(struct cmd_reset_port_result, port_id, UINT8);
+
+cmdline_parse_inst_t cmd_reset_port = {
+       .f = cmd_reset_port_parsed,
+       .data = NULL,
+       .help_str = "reset_port <port_id>",
+       .tokens = {
+               (void *)&cmd_reset_port_cmd,
+               (void *)&cmd_reset_port_id,
+               NULL,
+       },
+};
+
 /* *** SET CORELIST and PORTLIST CONFIGURATION *** */
 
 unsigned int
@@ -13751,6 +13781,7 @@ cmdline_parse_ctx_t main_ctx[] = {
        (cmdline_parse_inst_t *)&cmd_write_reg_bit,
        (cmdline_parse_inst_t *)&cmd_read_rxd_txd,
        (cmdline_parse_inst_t *)&cmd_stop,
+       (cmdline_parse_inst_t *)&cmd_reset_port,
        (cmdline_parse_inst_t *)&cmd_mac_addr,
        (cmdline_parse_inst_t *)&cmd_set_qmap,
        (cmdline_parse_inst_t *)&cmd_operate_port,
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index b0b340e..da3b525 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -3318,3 +3318,16 @@ close_ddp_package_file(uint8_t *buf)
 
        return -1;
 }
+
+void
+reset_port(portid_t port_id)
+{
+       int diag;
+
+       if (port_id_is_invalid(port_id, ENABLED_WARN))
+               return;
+       diag = rte_eth_dev_reset(port_id);
+       if (diag == 0)
+               return;
+       printf("Reset port %d failed. diag=%d\n", port_id, diag);       
+}
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index 364502d..956eec5 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -598,6 +598,7 @@ void stop_port(portid_t pid);
 void close_port(portid_t pid);
 void attach_port(char *identifier);
 void detach_port(uint8_t port_id);
+void reset_port(portid_t port_id);
 int all_ports_stopped(void);
 int port_is_started(portid_t port_id);
 void pmd_test_exit(void);
-- 
2.7.4

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