* io_u structures, which are not initialized until later.
*/
struct sg_io_hdr hdr;
+ unsigned long long hlba;
+ unsigned int blksz = 0;
unsigned char cmd[16];
unsigned char sb[64];
unsigned char buf[32]; // read capacity return
return ret;
}
- *bs = ((unsigned long) buf[4] << 24) | ((unsigned long) buf[5] << 16) |
- ((unsigned long) buf[6] << 8) | (unsigned long) buf[7];
- *max_lba = ((unsigned long) buf[0] << 24) | ((unsigned long) buf[1] << 16) |
- ((unsigned long) buf[2] << 8) | (unsigned long) buf[3];
+ if (hdr.info & SG_INFO_CHECK) {
+ /* RCAP(10) might be unsupported by device. Force RCAP(16) */
+ hlba = MAX_10B_LBA;
+ } else {
+ blksz = ((unsigned long) buf[4] << 24) | ((unsigned long) buf[5] << 16) |
+ ((unsigned long) buf[6] << 8) | (unsigned long) buf[7];
+ hlba = ((unsigned long) buf[0] << 24) | ((unsigned long) buf[1] << 16) |
+ ((unsigned long) buf[2] << 8) | (unsigned long) buf[3];
+ }
/*
* If max lba masked by MAX_10B_LBA equals MAX_10B_LBA,
* then need to retry with 16 byte Read Capacity command.
*/
- if (*max_lba == MAX_10B_LBA) {
+ if (hlba == MAX_10B_LBA) {
hdr.cmd_len = 16;
hdr.cmdp[0] = 0x9e; // service action
hdr.cmdp[1] = 0x10; // Read Capacity(16)
if (hdr.info & SG_INFO_CHECK)
td_verror(td, EIO, "fio_sgio_read_capacity");
- *bs = (buf[8] << 24) | (buf[9] << 16) | (buf[10] << 8) | buf[11];
- *max_lba = ((unsigned long long)buf[0] << 56) |
- ((unsigned long long)buf[1] << 48) |
- ((unsigned long long)buf[2] << 40) |
- ((unsigned long long)buf[3] << 32) |
- ((unsigned long long)buf[4] << 24) |
- ((unsigned long long)buf[5] << 16) |
- ((unsigned long long)buf[6] << 8) |
- (unsigned long long)buf[7];
+ blksz = (buf[8] << 24) | (buf[9] << 16) | (buf[10] << 8) | buf[11];
+ hlba = ((unsigned long long)buf[0] << 56) |
+ ((unsigned long long)buf[1] << 48) |
+ ((unsigned long long)buf[2] << 40) |
+ ((unsigned long long)buf[3] << 32) |
+ ((unsigned long long)buf[4] << 24) |
+ ((unsigned long long)buf[5] << 16) |
+ ((unsigned long long)buf[6] << 8) |
+ (unsigned long long)buf[7];
+ }
+
+ if (blksz) {
+ *bs = blksz;
+ *max_lba = hlba;
+ ret = 0;
+ } else {
+ ret = EIO;
}
close(fd);
- return 0;
+ return ret;
}
static void fio_sgio_cleanup(struct thread_data *td)