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- #include "volume_id_internal.h"
- struct promise_meta {
- uint8_t sig[24];
- } PACKED;
- #define PDC_CONFIG_OFF 0x1200
- #define PDC_SIGNATURE "Promise Technology, Inc."
- int FAST_FUNC volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size)
- {
- static const unsigned short sectors[] = {
- 63, 255, 256, 16, 399
- };
- struct promise_meta *pdc;
- unsigned i;
- dbg("probing at offset 0x%llx, size 0x%llx",
- (unsigned long long) off, (unsigned long long) size);
- if (size < 0x40000)
- return -1;
- for (i = 0; i < ARRAY_SIZE(sectors); i++) {
- uint64_t meta_off;
- meta_off = ((size / 0x200) - sectors[i]) * 0x200;
- pdc = volume_id_get_buffer(id, off + meta_off, 0x200);
- if (pdc == NULL)
- return -1;
- if (memcmp(pdc->sig, PDC_SIGNATURE, sizeof(PDC_SIGNATURE)-1) == 0)
- goto found;
- }
- return -1;
- found:
- return 0;
- }
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