diff options
Diffstat (limited to 'libnvme/README.md')
| -rw-r--r-- | libnvme/README.md | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/libnvme/README.md b/libnvme/README.md index f61e5cc..3195715 100644 --- a/libnvme/README.md +++ b/libnvme/README.md @@ -10,16 +10,24 @@ import sys import pprint from libnvme import nvme +def disc_supp_str(dlp_supp_opts): + bitmap = { + nvme.NVMF_LOG_DISC_LID_EXTDLPES: "EXTDLPES", + nvme.NVMF_LOG_DISC_LID_PLEOS: "PLEOS", + nvme.NVMF_LOG_DISC_LID_ALLSUBES: "ALLSUBES", + } + return [txt for msk, txt in bitmap.items() if dlp_supp_opts & msk] + root = nvme.root() # This is a singleton root.log_level('debug') # Optional: extra debug info host = nvme.host(root) # This "may be" a singleton. -sybsysnqn = [string] # e.g. 'nqn.2014-08.org.nvmexpress.discovery', nvme.NVME_DISC_SUBSYS_NAME, ... -transport = [string] # One of: 'tcp, 'rdma', 'fc', 'loop'. +subsysnqn = [string] # e.g. nvme.NVME_DISC_SUBSYS_NAME, ... +transport = [string] # One of: 'tcp', 'rdma', 'fc', 'loop'. traddr = [IPv4 or IPv6] # e.g. '192.168.10.10', 'fd2e:853b:3cad:e135:506a:65ee:29f2:1b18', ... trsvcid = [string] # e.g. '8009', '4420', ... host_iface = [interface] # e.g. 'eth1', ens256', ... -ctrl = nvme.ctrl(subsysnqn=subsysnqn, transport=transport, traddr=traddr, trsvcid=trsvcid, host_iface=host_iface) +ctrl = nvme.ctrl(root, subsysnqn=subsysnqn, transport=transport, traddr=traddr, trsvcid=trsvcid, host_iface=host_iface) try: cfg = { @@ -31,8 +39,17 @@ try: except Exception as e: sys.exit(f'Failed to connect: {e}') +supported_log_pages = ctrl.supported_log_pages() +try: + # Get the supported options for the Get Discovery Log Page command + dlp_supp_opts = supported_log_pages[nvme.NVME_LOG_LID_DISCOVER] >> 16 +except (TypeError, IndexError): + dlp_supp_opts = 0 + +print(f"LID {nvme.NVME_LOG_LID_DISCOVER:02x}h (Discovery), supports: {disc_supp_str(dlp_supp_opts)}") try: - log_pages = ctrl.discover() + lsp = nvme.NVMF_LOG_DISC_LSP_PLEO if dlp_supp_opts & nvme.NVMF_LOG_DISC_LID_PLEOS else 0 + log_pages = ctrl.discover(lsp=lsp) print(pprint.pformat(log_pages)) except Exception as e: sys.exit(f'Failed to retrieve log pages: {e}') @@ -42,5 +59,8 @@ try: except Exception as e: sys.exit(f'Failed to disconnect: {e}') +ctrl = None +host = None +root = None ``` |