xref: /dpdk/examples/multi_process/hotplug_mp/commands.c (revision 43f062ac3a926e53993b52a3d4333f2de2c6a706)
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2018-2023 Intel Corporation.
3  */
4 
5 #include <rte_bus.h>
6 #include <rte_ethdev.h>
7 #include "commands.h"
8 
cmd_help_parsed(__rte_unused void * parsed_result,struct cmdline * cl,__rte_unused void * data)9 void cmd_help_parsed(__rte_unused void *parsed_result,
10 			    struct cmdline *cl,
11 			    __rte_unused void *data)
12 {
13 	cmdline_printf(cl,
14 		       "commands:\n"
15 		       "- attach <devargs>\n"
16 		       "- detach <devargs>\n"
17 		       "- list\n\n");
18 }
19 
20 void
cmd_quit_parsed(__rte_unused void * parsed_result,struct cmdline * cl,__rte_unused void * data)21 cmd_quit_parsed(__rte_unused void *parsed_result,
22 			    struct cmdline *cl,
23 			    __rte_unused void *data)
24 {
25 	cmdline_quit(cl);
26 }
27 
28 void
cmd_list_parsed(__rte_unused void * parsed_result,struct cmdline * cl,__rte_unused void * data)29 cmd_list_parsed(__rte_unused void *parsed_result,
30 			    struct cmdline *cl,
31 			    __rte_unused void *data)
32 {
33 	uint16_t port_id;
34 	char dev_name[RTE_DEV_NAME_MAX_LEN];
35 
36 	cmdline_printf(cl, "list all etherdev\n");
37 
38 	RTE_ETH_FOREACH_DEV(port_id) {
39 		rte_eth_dev_get_name_by_port(port_id, dev_name);
40 		if (strlen(dev_name) > 0)
41 			cmdline_printf(cl, "%d\t%s\n", port_id, dev_name);
42 		else
43 			printf("empty dev_name is not expected!\n");
44 	}
45 }
46 
47 void
cmd_attach_parsed(void * parsed_result,struct cmdline * cl,__rte_unused void * data)48 cmd_attach_parsed(void *parsed_result,
49 				  struct cmdline *cl,
50 				  __rte_unused void *data)
51 {
52 	struct cmd_attach_result *res = parsed_result;
53 	struct rte_devargs da;
54 
55 	memset(&da, 0, sizeof(da));
56 
57 	if (rte_devargs_parsef(&da, "%s", res->devargs)) {
58 		cmdline_printf(cl, "cannot parse devargs\n");
59 		return;
60 	}
61 
62 	if (!rte_eal_hotplug_add(rte_bus_name(da.bus), da.name, da.args))
63 		cmdline_printf(cl, "attached device %s\n", da.name);
64 	else
65 		cmdline_printf(cl, "failed to attached device %s\n",
66 				da.name);
67 	rte_devargs_reset(&da);
68 }
69 
70 void
cmd_detach_parsed(void * parsed_result,struct cmdline * cl,__rte_unused void * data)71 cmd_detach_parsed(void *parsed_result,
72 				   struct cmdline *cl,
73 				   __rte_unused void *data)
74 {
75 	struct cmd_detach_result *res = parsed_result;
76 	struct rte_devargs da;
77 
78 	memset(&da, 0, sizeof(da));
79 
80 	if (rte_devargs_parsef(&da, "%s", res->devargs)) {
81 		cmdline_printf(cl, "cannot parse devargs\n");
82 		return;
83 	}
84 
85 	printf("detaching...\n");
86 	if (!rte_eal_hotplug_remove(rte_bus_name(da.bus), da.name))
87 		cmdline_printf(cl, "detached device %s\n",
88 			da.name);
89 	else
90 		cmdline_printf(cl, "failed to detach device %s\n",
91 			da.name);
92 	rte_devargs_reset(&da);
93 }
94