import time import argparse import random as rand from collections import OrderedDict from misoclib.tools.litescope.host.driver.uart import LiteScopeUARTDriver KB = 1024 MB = 1024*KB GB = 1024*MB logical_sector_size = 512 class Timer: def __init__(self): self.value = None def start(self): self._start = time.time() def stop(self): self._stop = time.time() self.value = max(self._stop - self._start, 1/1000000) class LiteSATABISTUnitDriver: def __init__(self, regs, name): self.regs = regs self.name = name self.frequency = regs.identifier_frequency.read() self.time = 0 for s in ["start", "sector", "count", "loops", "random", "done", "aborted", "errors", "cycles"]: setattr(self, s, getattr(regs, name + "_"+ s)) def run(self, sector, count, loops, random, blocking=True, hw_timer=True): self.sector.write(sector) self.count.write(count) self.loops.write(loops) self.random.write(random) timer = Timer() timer.start() self.start.write(1) if blocking: while (self.done.read() == 0): pass timer.stop() aborted = self.aborted.read() if not aborted: if hw_timer: self.time = self.cycles.read()/self.frequency else: self.time = timer.value speed = (loops*count*logical_sector_size)/self.time errors = self.errors.read() else: speed = 0 errors = -1 return (aborted, errors, speed) class LiteSATABISTGeneratorDriver(LiteSATABISTUnitDriver): def __init__(self, regs, name): LiteSATABISTUnitDriver.__init__(self, regs, name + "_generator") class LiteSATABISTCheckerDriver(LiteSATABISTUnitDriver): def __init__(self, regs, name): LiteSATABISTUnitDriver.__init__(self, regs, name + "_checker") class LiteSATABISTIdentifyDriver: def __init__(self, regs, name): self.regs = regs self.name = name for s in ["start", "done", "source_stb", "source_ack", "source_data"]: setattr(self, s, getattr(regs, name + "_identify_"+ s)) self.data = [] def read_fifo(self): self.data = [] while self.source_stb.read(): dword = self.source_data.read() word_lsb = dword & 0xffff word_msb = (dword >> 16) & 0xffff self.data += [word_lsb, word_msb] self.source_ack.write(1) def run(self, blocking=True): self.read_fifo() # flush the fifo before we start self.start.write(1) if blocking: while (self.done.read() == 0): pass self.read_fifo() self.decode() def decode(self): self.serial_number = "" for i, word in enumerate(self.data[10:20]): s = word.to_bytes(2, byteorder='big').decode("utf-8") self.serial_number += s self.firmware_revision = "" for i, word in enumerate(self.data[23:27]): s = word.to_bytes(2, byteorder='big').decode("utf-8") self.firmware_revision += s self.model_number = "" for i, word in enumerate(self.data[27:46]): s = word.to_bytes(2, byteorder='big').decode("utf-8") self.model_number += s self.total_sectors = self.data[100] self.total_sectors += (self.data[101] << 16) self.total_sectors += (self.data[102] << 32) self.total_sectors += (self.data[103] << 48) self.capabilities = OrderedDict() self.capabilities["SATA Gen1"] = (self.data[76] >> 1) & 0x1 self.capabilities["SATA Gen2"] = (self.data[76] >> 2) & 0x1 self.capabilities["SATA Gen3"] = (self.data[76] >> 3) & 0x1 self.capabilities["48 bits LBA supported"] = (self.data[83] >> 10) & 0x1 def hdd_info(self): info = "Serial Number: " + self.serial_number + "\n" info += "Firmware Revision: " + self.firmware_revision + "\n" info += "Model Number: " + self.model_number + "\n" info += "Capacity: %3.2f GB\n" %((self.total_sectors*logical_sector_size)/GB) for k, v in self.capabilities.items(): info += k + ": " + str(v) + "\n" print(info, end="") def _get_args(): parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter, description="""\ SATA BIST utility. """) parser.add_argument("--port", default=2, help="UART port") parser.add_argument("--baudrate", default=115200, help="UART baudrate") parser.add_argument("--busword", default=32, help="CSR busword") parser.add_argument("-s", "--transfer_size", default=1024, help="transfer sizes (in KB, up to 16MB)") parser.add_argument("-l", "--total_length", default=256, help="total transfer length (in MB, up to HDD capacity)") parser.add_argument("-n", "--loops", default=1, help="number of loop per transfer (allow more precision on speed calculation for small transfers)") parser.add_argument("-r", "--random", action="store_true", help="use random data") parser.add_argument("-c", "--continuous", action="store_true", help="continuous mode (Escape to exit)") parser.add_argument("-i", "--identify", action="store_true", help="only run identify") parser.add_argument("-t", "--software_timer", action="store_true", help="use software timer") parser.add_argument("-a", "--random_addressing", action="store_true", help="use random addressing") return parser.parse_args() if __name__ == "__main__": args = _get_args() wb = LiteScopeUARTDriver(args.port, args.baudrate, "./csr.csv", int(args.busword), debug=False) wb.open() ### identify = LiteSATABISTIdentifyDriver(wb.regs, "sata_bist") generator = LiteSATABISTGeneratorDriver(wb.regs, "sata_bist") checker = LiteSATABISTCheckerDriver(wb.regs, "sata_bist") identify.run() identify.hdd_info() if not int(args.identify): sector = 0 count = int(args.transfer_size)*KB//logical_sector_size loops = int(args.loops) length = int(args.total_length)*MB random = int(args.random) continuous = int(args.continuous) sw_timer = int(args.software_timer) random_addressing = int(args.random_addressing) run_sectors = 0 try: while ((run_sectors*logical_sector_size < length) or continuous) and (sector < identify.total_sectors): retry = 0 # generator (write data to HDD) write_done = False while not write_done: write_aborted, write_errors, write_speed = generator.run(sector, count, loops, random, True, not sw_timer) write_done = not write_aborted if not write_done: retry += 1 # checker (read and check data from HDD) read_done = False while not read_done: read_aborted, read_errors, read_speed = checker.run(sector, count, loops, random, True, not sw_timer) read_done = not read_aborted if not read_done: retry += 1 print("sector=%d(%dMB) wr_speed=%4.2fMB/s rd_speed=%4.2fMB/s errors=%d retry=%d" %( sector, run_sectors*logical_sector_size/MB, write_speed/MB, read_speed/MB, write_errors + read_errors, retry)) if random_addressing: sector = rand.randint(0, identify.total_sectors//(256*2))*256 else: sector += count run_sectors += count except KeyboardInterrupt: pass ### wb.close()