diff options
| author | Tiwei Bie <tiwei.btw@antgroup.com> | 2025-05-03 13:17:08 +0800 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2025-05-05 10:26:59 +0200 |
| commit | 65eaac591b752042006d3a79c0cfba47e2a9aaac (patch) | |
| tree | 6494353519ffa292543fdde24b0fd89d6f99174c /Documentation/virt | |
| parent | 304c9f7f8f439083c56846c4433fbab7467eb01e (diff) | |
um: Remove obsolete legacy network transports
These legacy network transports were marked as obsolete in commit
40814b98a570 ("um: Mark non-vector net transports as obsolete").
More than five years have passed since then. Remove these network
transports to reduce the maintenance burden.
Suggested-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Link: https://patch.msgid.link/20250503051710.3286595-2-tiwei.btw@antgroup.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'Documentation/virt')
| -rw-r--r-- | Documentation/virt/uml/user_mode_linux_howto_v2.rst | 31 |
1 files changed, 2 insertions, 29 deletions
diff --git a/Documentation/virt/uml/user_mode_linux_howto_v2.rst b/Documentation/virt/uml/user_mode_linux_howto_v2.rst index 584000b743f3..60f35ed748b2 100644 --- a/Documentation/virt/uml/user_mode_linux_howto_v2.rst +++ b/Documentation/virt/uml/user_mode_linux_howto_v2.rst @@ -219,16 +219,6 @@ remote UML and other VM instances. +-----------+--------+------------------------------------+------------+ | vde | vector | dep. on VDE VPN: Virt.Net Locator | varies | +-----------+--------+------------------------------------+------------+ -| tuntap | legacy | none | ~ 500Mbit | -+-----------+--------+------------------------------------+------------+ -| daemon | legacy | none | ~ 450Mbit | -+-----------+--------+------------------------------------+------------+ -| socket | legacy | none | ~ 450Mbit | -+-----------+--------+------------------------------------+------------+ -| ethertap | legacy | obsolete | ~ 500Mbit | -+-----------+--------+------------------------------------+------------+ -| vde | legacy | obsolete | ~ 500Mbit | -+-----------+--------+------------------------------------+------------+ * All transports which have tso and checksum offloads can deliver speeds approaching 10G on TCP streams. @@ -236,27 +226,16 @@ remote UML and other VM instances. * All transports which have multi-packet rx and/or tx can deliver pps rates of up to 1Mps or more. -* All legacy transports are generally limited to ~600-700MBit and 0.05Mps. - * GRE and L2TPv3 allow connections to all of: local machine, remote machines, remote network devices and remote UML instances. -* Socket allows connections only between UML instances. - -* Daemon and bess require running a local switch. This switch may be - connected to the host as well. - Network configuration privileges ================================ The majority of the supported networking modes need ``root`` privileges. -For example, in the legacy tuntap networking mode, users were required -to be part of the group associated with the tunnel device. - -For newer network drivers like the vector transports, ``root`` privilege -is required to fire an ioctl to setup the tun interface and/or use -raw sockets where needed. +For example, for vector transports, ``root`` privilege is required to fire +an ioctl to setup the tun interface and/or use raw sockets where needed. This can be achieved by granting the user a particular capability instead of running UML as root. In case of vector transport, a user can add the @@ -610,12 +589,6 @@ connect to a local area cloud (all the UML nodes using the same multicast address running on hosts in the same multicast domain (LAN) will be automagically connected together to a virtual LAN. -Configuring Legacy transports -============================= - -Legacy transports are now considered obsolete. Please use the vector -versions. - *********** Running UML *********** |