]> Git Repo - J-u-boot.git/blob - cmd/blkcache.c
Merge commit 'f3f86fd1fe0fb288356bff78f8a6fa2edf89e3fc' as 'lib/lwip/lwip'
[J-u-boot.git] / cmd / blkcache.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) Nelson Integration, LLC 2016
4  * Author: Eric Nelson<[email protected]>
5  *
6  */
7 #include <command.h>
8 #include <config.h>
9 #include <malloc.h>
10 #include <part.h>
11 #include <vsprintf.h>
12
13 static int blkc_show(struct cmd_tbl *cmdtp, int flag,
14                      int argc, char *const argv[])
15 {
16         struct block_cache_stats stats;
17         blkcache_stats(&stats);
18
19         printf("hits: %u\n"
20                "misses: %u\n"
21                "entries: %u\n"
22                "max blocks/entry: %u\n"
23                "max cache entries: %u\n",
24                stats.hits, stats.misses, stats.entries,
25                stats.max_blocks_per_entry, stats.max_entries);
26         return 0;
27 }
28
29 static int blkc_configure(struct cmd_tbl *cmdtp, int flag,
30                           int argc, char *const argv[])
31 {
32         unsigned blocks_per_entry, max_entries;
33         if (argc != 3)
34                 return CMD_RET_USAGE;
35
36         blocks_per_entry = simple_strtoul(argv[1], 0, 0);
37         max_entries = simple_strtoul(argv[2], 0, 0);
38         blkcache_configure(blocks_per_entry, max_entries);
39         printf("changed to max of %u entries of %u blocks each\n",
40                max_entries, blocks_per_entry);
41         return 0;
42 }
43
44 static struct cmd_tbl cmd_blkc_sub[] = {
45         U_BOOT_CMD_MKENT(show, 0, 0, blkc_show, "", ""),
46         U_BOOT_CMD_MKENT(configure, 3, 0, blkc_configure, "", ""),
47 };
48
49 static int do_blkcache(struct cmd_tbl *cmdtp, int flag,
50                        int argc, char *const argv[])
51 {
52         struct cmd_tbl *c;
53
54         if (argc < 2)
55                 return CMD_RET_USAGE;
56
57         /* Strip off leading argument */
58         argc--;
59         argv++;
60
61         c = find_cmd_tbl(argv[0], &cmd_blkc_sub[0], ARRAY_SIZE(cmd_blkc_sub));
62
63         if (!c)
64                 return CMD_RET_USAGE;
65
66         return c->cmd(cmdtp, flag, argc, argv);
67 }
68
69 U_BOOT_CMD(
70         blkcache, 4, 0, do_blkcache,
71         "block cache diagnostics and control",
72         "show - show and reset statistics\n"
73         "blkcache configure <blocks> <entries> "
74         "- set max blocks per entry and max cache entries\n"
75 );
This page took 0.02444 seconds and 4 git commands to generate.