aboutsummaryrefslogtreecommitdiffstats
path: root/app/test-pmd/bpf_cmd.c
blob: 584fad908cabcfabef7c540c43ed17d980f160a3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2018 Intel Corporation
 */

#include <stdio.h>
#include <rte_mbuf.h>
#include <rte_ethdev.h>
#include <rte_flow.h>
#include <rte_bpf_ethdev.h>

#include <cmdline.h>
#include <cmdline_parse.h>
#include <cmdline_parse_num.h>
#include <cmdline_parse_string.h>

#include "testpmd.h"

static const struct rte_bpf_xsym bpf_xsym[] = {
	{
		.name = RTE_STR(stdout),
		.type = RTE_BPF_XTYPE_VAR,
		.var = &stdout,
	},
	{
		.name = RTE_STR(rte_pktmbuf_dump),
		.type = RTE_BPF_XTYPE_FUNC,
		.func = (void *)rte_pktmbuf_dump,
	},
};

/* *** load BPF program *** */
struct cmd_bpf_ld_result {
	cmdline_fixed_string_t bpf;
	cmdline_fixed_string_t dir;
	uint8_t port;
	uint16_t queue;
	cmdline_fixed_string_t op;
	cmdline_fixed_string_t flags;
	cmdline_fixed_string_t prm;
};

static void
bpf_parse_flags(const char *str, struct rte_bpf_arg *arg, uint32_t *flags)
{
	uint32_t i, v;

	*flags = RTE_BPF_ETH_F_NONE;
	arg->type = RTE_BPF_ARG_PTR;
	arg->size = mbuf_data_size;

	for (i = 0; str[i] != 0; i++) {
		v = toupper(str[i]);
		if (v == 'J')
			*flags |= RTE_BPF_ETH_F_JIT;
		else if (v == 'M') {
			arg->type = RTE_BPF_ARG_PTR_MBUF;
			arg->size = sizeof(struct rte_mbuf);
			arg->buf_size = mbuf_data_size;
		} else if (v == '-')
			continue;
		else
			printf("unknown flag: \'%c\'", v);
	}
}

static void cmd_operate_bpf_ld_parsed(void *parsed_result,
				__attribute__((unused)) struct cmdline *cl,
				__attribute__((unused)) void *data)
{
	int32_t rc;
	uint32_t flags;
	struct cmd_bpf_ld_result *res;
	struct rte_bpf_prm prm;
	const char *fname, *sname;

	res = parsed_result;
	memset(&prm, 0, sizeof(prm));
	prm.xsym = bpf_xsym;
	prm.nb_xsym = RTE_DIM(bpf_xsym);

	bpf_parse_flags(res->flags, &prm.prog_arg, &flags);
	fname = res->prm;
	sname = ".text";

	if (strcmp(res->dir, "rx") == 0) {
		rc = rte_bpf_eth_rx_elf_load(res->port, res->queue, &prm,
			fname, sname, flags);
		printf("%d:%s\n", rc, strerror(-rc));
	} else if (strcmp(res->dir, "tx") == 0) {
		rc = rte_bpf_eth_tx_elf_load(res->port, res->queue, &prm,
			fname, sname, flags);
		printf("%d:%s\n", rc, strerror(-rc));
	} else
		printf("invalid value: %s\n", res->dir);
}

cmdline_parse_token_string_t cmd_load_bpf_start =
	TOKEN_STRING_INITIALIZER(struct cmd_bpf_ld_result,
			bpf, "bpf-load");
cmdline_parse_token_string_t cmd_load_bpf_dir =
	TOKEN_STRING_INITIALIZER(struct cmd_bpf_ld_result,
			dir, "rx#tx");
cmdline_parse_token_num_t cmd_load_bpf_port =
	TOKEN_NUM_INITIALIZER(struct cmd_bpf_ld_result, port, UINT8);
cmdline_parse_token_num_t cmd_load_bpf_queue =
	TOKEN_NUM_INITIALIZER(struct cmd_bpf_ld_result, queue, UINT16);
cmdline_parse_token_string_t cmd_load_bpf_flags =
	TOKEN_STRING_INITIALIZER(struct cmd_bpf_ld_result,
			flags, NULL);
cmdline_parse_token_string_t cmd_load_bpf_prm =
	TOKEN_STRING_INITIALIZER(struct cmd_bpf_ld_result,
			prm, NULL);

cmdline_parse_inst_t cmd_operate_bpf_ld_parse = {
	.f = cmd_operate_bpf_ld_parsed,
	.data = NULL,
	.help_str = "bpf-load rx|tx <port> <queue> <J|M|B> <file_name>",
	.tokens = {
		(void *)&cmd_load_bpf_start,
		(void *)&cmd_load_bpf_dir,
		(void *)&cmd_load_bpf_port,
		(void *)&cmd_load_bpf_queue,
		(void *)&cmd_load_bpf_flags,
		(void *)&cmd_load_bpf_prm,
		NULL,
	},
};

/* *** unload BPF program *** */
struct cmd_bpf_unld_result {
	cmdline_fixed_string_t bpf;
	cmdline_fixed_string_t dir;
	uint8_t port;
	uint16_t queue;
};

static void cmd_operate_bpf_unld_parsed(void *parsed_result,
				__attribute__((unused)) struct cmdline *cl,
				__attribute__((unused)) void *data)
{
	struct cmd_bpf_unld_result *res;

	res = parsed_result;

	if (strcmp(res->dir, "rx") == 0)
		rte_bpf_eth_rx_unload(res->port, res->queue);
	else if (strcmp(res->dir, "tx") == 0)
		rte_bpf_eth_tx_unload(res->port, res->queue);
	else
		printf("invalid value: %s\n", res->dir);
}

cmdline_parse_token_string_t cmd_unload_bpf_start =
	TOKEN_STRING_INITIALIZER(struct cmd_bpf_unld_result,
			bpf, "bpf-unload");
cmdline_parse_token_string_t cmd_unload_bpf_dir =
	TOKEN_STRING_INITIALIZER(struct cmd_bpf_unld_result,
			dir, "rx#tx");
cmdline_parse_token_num_t cmd_unload_bpf_port =
	TOKEN_NUM_INITIALIZER(struct cmd_bpf_unld_result, port, UINT8);
cmdline_parse_token_num_t cmd_unload_bpf_queue =
	TOKEN_NUM_INITIALIZER(struct cmd_bpf_unld_result, queue, UINT16);

cmdline_parse_inst_t cmd_operate_bpf_unld_parse = {
	.f = cmd_operate_bpf_unld_parsed,
	.data = NULL,
	.help_str = "bpf-unload rx|tx <port> <queue>",
	.tokens = {
		(void *)&cmd_unload_bpf_start,
		(void *)&cmd_unload_bpf_dir,
		(void *)&cmd_unload_bpf_port,
		(void *)&cmd_unload_bpf_queue,
		NULL,
	},
};