[root@cubie ~]# pciconf -lv
pcib1@pci0:0:0:0: class=0x060400 rev=0x01 hdr=0x01 vendor=0x16c3 device=0xabcd subvendor=0x0000 subdevice=0x0000
vendor = 'Synopsys, Inc.'
device = 'DWC_usb3 / PCIe bridge'
class = bridge
subclass = PCI-PCI
nvme0@pci0:1:0:0: class=0x010802 rev=0x01 hdr=0x00 vendor=0x1987 device=0x5021 subvendor=0x1987 subdevice=0x5021
vendor = 'Phison Electronics Corporation'
device = 'PS5021-E21 PCIe4 NVMe Controller (DRAM-less)'
class = mass storage
subclass = NVM
[root@cubie ~]# dd if=/dev/nda0
nda0 nda0p1 nda0p2
[root@cubie ~]# dd if=/dev/nda0 of=/dev/null bs=1m status=progress
^C5313134592 bytes (5313 MB, 5067 MiB) transferred 16.061s, 331 MB/s
5271+0 records in
5271+0 records out
5527044096 bytes transferred in 16.644092 secs (332072435 bytes/sec)
nvme0@pci0:1:0:0: class=0x010802 rev=0x01 hdr=0x00 vendor=0x1987 device=0x5021 subvendor=0x1987 subdevice=0x5021
vendor = 'Phison Electronics Corporation'
device = 'PS5021-E21 PCIe4 NVMe Controller (DRAM-less)'
class = mass storage
subclass = NVM
bar [10] = type Memory, range 64, base 0x22000000, size 16384, enabled
cap 10[80] = PCI-Express 2 endpoint max data 128(512) FLR RO NS
max read 512
link x1(x4) speed 5.0(16.0) ASPM disabled(L1)
cap 11[d0] = MSI-X supports 9 messages
Table in map 0x10[0x2000], PBA in map 0x10[0x3000]
cap 05[e0] = MSI supports 8 messages, 64 bit, vector masks enabled with 2 messages
cap 01[f8] = powerspec 3 supports D0 D3 current D0
ecap 0018[100] = LTR 1
ecap 001e[110] = L1 PM Substates 1
ecap 000e[128] = ARI 1
ecap 0025[1e0] = Data Link Feature 1
ecap 0001[200] = AER 2 0 fatal 0 non-fatal 0 corrected
ecap 0019[300] = PCIe Sec 1 lane errors 0
ecap 0026[340] = Physical Layer 16.0 GT/s 1
ecap 0027[378] = Lane Margining at Receiver 1
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