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7#include <common.h>
8#include <command.h>
9#include <malloc.h>
10#include <part.h>
11#include <blk.h>
12#include <vsprintf.h>
13
14#define BUFSIZE (1 * 1024 * 1024)
15static int do_clone(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
16{
17 int srcdev, destdev;
18 struct blk_desc *srcdesc, *destdesc;
19 int srcbz, destbz, ret;
20 char *unit, *buf;
21 unsigned long wrcnt, rdcnt, requested, srcblk, destblk;
22 unsigned long timer;
23 const unsigned long buffersize = 1024 * 1024;
24
25 if (argc < 6)
26 return CMD_RET_USAGE;
27
28 srcdev = blk_get_device_by_str(argv[1], argv[2], &srcdesc);
29 destdev = blk_get_device_by_str(argv[3], argv[4], &destdesc);
30 if (srcdev < 0) {
31 printf("Unable to open source device\n");
32 return 1;
33 } else if (destdev < 0) {
34 printf("Unable to open destination device\n");
35 return 1;
36 }
37 requested = dectoul(argv[5], &unit);
38 srcbz = srcdesc->blksz;
39 destbz = destdesc->blksz;
40
41 if ((srcbz * (buffersize / srcbz) != buffersize) ||
42 (destbz * (buffersize / destbz) != buffersize)) {
43 printf("failed: cannot match device block sizes\n");
44 return 1;
45 }
46 if (requested == 0) {
47 unsigned long a = srcdesc->lba * srcdesc->blksz;
48 unsigned long b = destdesc->lba * destdesc->blksz;
49
50 if (a > b)
51 requested = a;
52 else
53 requested = b;
54 } else {
55 switch (unit[0]) {
56 case 'g':
57 case 'G':
58 requested *= 1024 * 1024 * 1024;
59 break;
60 case 'm':
61 case 'M':
62 requested *= 1024 * 1024;
63 break;
64 case 'k':
65 case 'K':
66 requested *= 1024;
67 break;
68 }
69 }
70 printf("Copying %ld bytes from %s:%s to %s:%s\n",
71 requested, argv[1], argv[2], argv[3], argv[4]);
72 wrcnt = 0;
73 rdcnt = 0;
74 buf = (char *)malloc(BUFSIZE);
75 srcblk = 0;
76 destblk = 0;
77 timer = get_timer(0);
78 while (wrcnt < requested) {
79 unsigned long toread = BUFSIZE / srcbz;
80 unsigned long towrite = BUFSIZE / destbz;
81 unsigned long offset = 0;
82
83read:
84 ret = blk_dread(srcdesc, srcblk, toread, buf + offset);
85 if (ret < 0) {
86 printf("Src read error @blk %ld\n", srcblk);
87 goto exit;
88 }
89 rdcnt += ret * srcbz;
90 srcblk += ret;
91 if (ret < toread) {
92 toread -= ret;
93 offset += ret * srcbz;
94 goto read;
95 }
96 offset = 0;
97write:
98 ret = blk_dwrite(destdesc, destblk, towrite, buf + offset);
99 if (ret < 0) {
100 printf("Dest write error @blk %ld\n", srcblk);
101 goto exit;
102 }
103 wrcnt += ret * destbz;
104 destblk += ret;
105 if (ret < towrite) {
106 towrite -= ret;
107 offset += ret * destbz;
108 goto write;
109 }
110 }
111
112exit:
113 timer = get_timer(timer);
114 timer = 1000 * timer / CONFIG_SYS_HZ;
115 printf("%ld read\n", rdcnt);
116 printf("%ld written\n", wrcnt);
117 printf("%ldms, %ldkB/s\n", timer, wrcnt / timer);
118 free(buf);
119
120 return 0;
121}
122
123U_BOOT_CMD(
124 clone, 6, 1, do_clone,
125 "simple storage cloning",
126 "<src interface> <src dev> <dest interface> <dest dev> <size[K/M/G]>\n"
127 "clone storage from 'src dev' on 'src interface' to 'dest dev' on 'dest interface' with maximum 'size' bytes (or 0 for clone to end)"
128);
129
