def test_cid_conflict(nvme0):
mdts_lba = nvme0.mdts // 512
cq = IOCQ(nvme0, 1, 20, PRP())
sq = IOSQ(nvme0, 1, 20, PRP(), cqid=1)
# prp for the long buffer
write_buf_1 = PRP(ptype=32, pvalue=0xaaaaaaaa)
pages = mdts_lba // 8
pages -= 1
prp_list = PRPList()
prp_list_head = prp_list
while pages:
logging.info(pages)
for i in range(63):
if pages:
prp_list[i] = PRP()
pages -= 1
logging.debug(pages)
if pages > 1:
tmp = PRPList()
prp_list[63] = tmp
prp_list = tmp
logging.debug("prp_list")
elif pages == 1:
prp_list[63] = PRP()
pages -= 1
logging.debug(pages)
#send first cmd
w1 = SQE((1 << 16) + 1, 1)
w1.prp1 = write_buf_1
w1.prp2 = prp_list_head
w1[12] = mdts_lba - 1 # 0based, nlba
sq[0] = w1
sq[1] = w1
logging.info(sq[0])
logging.info(sq[1])
assert sq[0][0] >> 16 == 1
assert sq[1][0] >> 16 == 1
sq.tail = 2
time.sleep(1)
logging.info(cq[0])
logging.info(cq[1])
cqe = CQE(cq[0])
assert cqe.p == 1
status = (cqe[3] >> 17) & 0x3ff
assert status == 0 or status == 0x0003
cqe = CQE(cq[1])
assert cqe.p == 1
status = (cqe[3] >> 17) & 0x3ff
assert status == 0 or status == 0x0003
cq.head = 2
sq.delete()
cq.delete()
def test_write_mdts(nvme0, mdts):
cq = IOCQ(nvme0, 1, 2, PRP())
sq = IOSQ(nvme0, 1, 2, PRP(), cqid=1)
# prp for the long buffer
write_buf_1 = PRP(ptype=32, pvalue=0xaaaaaaaa)
pages = mdts // 8
pages -= 1
prp_list = PRPList()
prp_list_head = prp_list
while pages:
for i in range(511):
if pages:
prp_list[i] = PRP()
pages -= 1
logging.debug(pages)
if pages > 1:
tmp = PRPList()
prp_list[511] = tmp
prp_list = tmp
logging.debug("prp_list")
elif pages == 1:
prp_list[511] = PRP()
pages -= 1
logging.debug(pages)
w1 = SQE(1, 1)
w1.prp1 = write_buf_1
w1.prp2 = prp_list_head
w1[12] = mdts - 1 # 0based, nlba
w1.cid = 0x123
sq[0] = w1
sq.tail = 1
time.sleep(1)
cqe = CQE(cq[0])
logging.info(cqe)
assert cqe.p == 1
assert cqe.cid == 0x123
assert cqe.sqhd == 1
logging.info("cqe status is {}".format(cqe.status))
assert cqe.status == 0 or cqe.status == 2
cq.head = 1
sq.delete()
cq.delete()
def test_invalid_offset_prp_in_list(nvme0):
cq = IOCQ(nvme0, 1, 10, PRP())
sq = IOSQ(nvme0, 1, 10, PRP(), cqid=1)
buf = PRP(ptype=32, pvalue=0xffffffff)
buf.offset = 0x10
prp_list = PRPList()
prp_list.offset = 0x20
for i in range(8):
tmp = PRP(ptype=32, pvalue=0xffffffff)
tmp.offset = 0x10
prp_list[i] = tmp
logging.info(prp_list.dump(64))
print(buf.dump(32))
for i in range(8):
print(prp_list[i].dump(32))
cmd = SQE(2, 1)
cmd.prp1 = buf
cmd.prp2 = prp_list
cmd[12] = 0x4000001f
sq[0] = cmd
logging.info(sq[0])
sq.tail = 1
while CQE(cq[0]).p == 0:
pass
cq.head = 1
logging.info(cq[0])
logging.info(hex(cq[0][3] >> 17))
print(buf.dump(32))
for i in range(8):
print(prp_list[i].dump(32))
status = (cq[0][3] >> 17) & 0x3ff
assert status == 0x0013 or status == 0
sq.delete()
cq.delete()
def test_controller_mdts(nvme0,nvme0n1):
if nvme0.mdts == 1024*1024: # up to 1MB
pytest.skip("mdts is maximum")
mps_min = (nvme0.cap>>48) & 0xf
logging.info("mps_min:{}".format(mps_min))
mdts=nvme0.id_data(77,77)
logging.info("mdts:{}".format(mdts))
max_data_size=(2**mdts)*(2**(12+mps_min))
logging.info(max_data_size)
max_pages=max_data_size//4//1024
pages=max_pages-1
max_lba=max_data_size//512
cq = IOCQ(nvme0, 1, 5, PRP())
sq = IOSQ(nvme0, 1, 5, PRP(), cqid=1)
# prp for the long buffer
write_buf_1 = PRP(ptype=32, pvalue=0xaaaaaaaa)
prp_list = PRPList()
prp_list_head = prp_list
while pages:
for i in range(511):
if pages:
prp_list[i] = PRP()
pages -= 1
logging.debug(pages)
if pages>1:
tmp = PRPList()
prp_list[511] = tmp
prp_list = tmp
logging.debug("prp_list")
elif pages==1:
prp_list[511] = PRP()
pages -= 1
logging.debug(pages)
w1 = SQE(1, 1)
w1.prp1 = write_buf_1
w1.prp2 = prp_list_head
w1[12] = max_lba-1 # 0based, nlba
w1.cid = 0x123
sq[0] = w1
sq.tail = 1
time.sleep(1)
cqe = CQE(cq[0])
logging.info(cqe)
assert cqe.p == 1
assert cqe.cid == 0x123
assert cqe.sqhd == 1
assert cqe.status == 0
cq.head = 1
w2 = SQE(1, 1)
w2.prp1 = write_buf_1
w2.prp2 = prp_list_head
w2[12] = max_lba # 0based, nlba
w2.cid = 0x234
sq[1] = w2
sq.tail = 2
time.sleep(1)
cqe = CQE(cq[1])
logging.info(cqe)
assert cqe.p == 1
assert cqe.cid == 0x234
assert cqe.sqhd == 2
assert cqe.status == 2
cq.head = 2
r1 = SQE(2, 1)
r1.prp1 = write_buf_1
r1.prp2 = prp_list_head
r1[12] = max_lba # 0based, nlba
r1.cid = 0x345
sq[2] = r1
sq.tail = 3
time.sleep(1)
cqe = CQE(cq[2])
logging.info(cqe)
assert cqe.p == 1
assert cqe.cid == 0x345
assert cqe.sqhd == 3
assert cqe.status == 2
cq.head = 3
r2 = SQE(2, 1)
r2.prp1 = write_buf_1
r2.prp2 = prp_list_head
r2[12] = max_lba-1 # 0based, nlba
r2.cid = 0x456
sq[3] = r2
sq.tail = 4
time.sleep(1)
cqe = CQE(cq[3])
logging.info(cqe)
assert cqe.p == 1
assert cqe.cid == 0x456
assert cqe.sqhd == 4
assert cqe.status == 0
cq.head = 4
sq.delete()
cq.delete()
