aboutsummaryrefslogtreecommitdiff
path: root/Documentation/networking
AgeCommit message (Collapse)AuthorFilesLines
2020-03-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextGravatar David S. Miller 1-1/+1
Daniel Borkmann says: ==================== pull-request: bpf-next 2020-03-13 The following pull-request contains BPF updates for your *net-next* tree. We've added 86 non-merge commits during the last 12 day(s) which contain a total of 107 files changed, 5771 insertions(+), 1700 deletions(-). The main changes are: 1) Add modify_return attach type which allows to attach to a function via BPF trampoline and is run after the fentry and before the fexit programs and can pass a return code to the original caller, from KP Singh. 2) Generalize BPF's kallsyms handling and add BPF trampoline and dispatcher objects to be visible in /proc/kallsyms so they can be annotated in stack traces, from Jiri Olsa. 3) Extend BPF sockmap to allow for UDP next to existing TCP support in order in order to enable this for BPF based socket dispatch, from Lorenz Bauer. 4) Introduce a new bpftool 'prog profile' command which attaches to existing BPF programs via fentry and fexit hooks and reads out hardware counters during that period, from Song Liu. Example usage: bpftool prog profile id 337 duration 3 cycles instructions llc_misses 4228 run_cnt 3403698 cycles (84.08%) 3525294 instructions # 1.04 insn per cycle (84.05%) 13 llc_misses # 3.69 LLC misses per million isns (83.50%) 5) Batch of improvements to libbpf, bpftool and BPF selftests. Also addition of a new bpf_link abstraction to keep in particular BPF tracing programs attached even when the applicaion owning them exits, from Andrii Nakryiko. 6) New bpf_get_current_pid_tgid() helper for tracing to perform PID filtering and which returns the PID as seen by the init namespace, from Carlos Neira. 7) Refactor of RISC-V JIT code to move out common pieces and addition of a new RV32G BPF JIT compiler, from Luke Nelson. 8) Add gso_size context member to __sk_buff in order to be able to know whether a given skb is GSO or not, from Willem de Bruijn. 9) Add a new bpf_xdp_output() helper which reuses XDP's existing perf RB output implementation but can be called from tracepoint programs, from Eelco Chaudron. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netGravatar David S. Miller 3-7/+4
Minor overlapping changes, nothing serious. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12ethtool: add CHANNELS_NTF notificationGravatar Michal Kubecek 1-0/+1
Send ETHTOOL_MSG_CHANNELS_NTF notification whenever channel counts of a network device are modified using ETHTOOL_MSG_CHANNELS_SET netlink message or ETHTOOL_SCHANNELS ioctl request. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12ethtool: set device channel counts with CHANNELS_SET requestGravatar Michal Kubecek 1-1/+22
Implement CHANNELS_SET netlink request to set channel counts of a network device. These are traditionally set with ETHTOOL_SCHANNELS ioctl request. Like the ioctl implementation, the generic ethtool code checks if supplied values do not exceed driver defined limits; if they do, first offending attribute is reported using extack. Checks preventing removing channels used for RX indirection table or zerocopy AF_XDP socket are also implemented. Move ethtool_get_max_rxfh_channel() helper into common.c so that it can be used by both ioctl and netlink code. v2: - fix netdev reference leak in error path (found by Jakub Kicinsky) Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12ethtool: provide channel counts with CHANNELS_GET requestGravatar Michal Kubecek 1-1/+29
Implement CHANNELS_GET request to get channel counts of a network device. These are traditionally available via ETHTOOL_GCHANNELS ioctl request. Omit attributes for channel types which are not supported by driver or device (zero reported for maximum). v2: (all suggested by Jakub Kicinski) - minor cleanup in channels_prepare_data() - more descriptive channels_reply_size() - omit attributes with zero max count Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12ethtool: add RINGS_NTF notificationGravatar Michal Kubecek 1-0/+1
Send ETHTOOL_MSG_RINGS_NTF notification whenever ring sizes of a network device are modified using ETHTOOL_MSG_RINGS_SET netlink message or ETHTOOL_SRINGPARAM ioctl request. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12ethtool: set device ring sizes with RINGS_SET requestGravatar Michal Kubecek 1-1/+22
Implement RINGS_SET netlink request to set ring sizes of a network device. These are traditionally set with ETHTOOL_SRINGPARAM ioctl request. Like the ioctl implementation, the generic ethtool code checks if supplied values do not exceed driver defined limits; if they do, first offending attribute is reported using extack. v2: - fix netdev reference leak in error path (found by Jakub Kicinsky) Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12ethtool: provide ring sizes with RINGS_GET requestGravatar Michal Kubecek 1-1/+29
Implement RINGS_GET request to get ring sizes of a network device. These are traditionally available via ETHTOOL_GRINGPARAM ioctl request. Omit attributes for ring types which are not supported by driver or device (zero reported for maximum). v2: (all suggested by Jakub Kicinski) - minor cleanup in rings_prepare_data() - more descriptive rings_reply_size() - omit attributes with zero max size Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12ethtool: set device private flags with PRIVFLAGS_SET requestGravatar Michal Kubecek 1-1/+20
Implement PRIVFLAGS_SET netlink request to set private flags of a network device. These are traditionally set with ETHTOOL_SPFLAGS ioctl request. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12ethtool: provide private flags with PRIVFLAGS_GET requestGravatar Michal Kubecek 1-1/+29
Implement PRIVFLAGS_GET request to get private flags for a network device. These are traditionally available via ETHTOOL_GPFLAGS ioctl request. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12ethtool: add FEATURES_NTF notificationGravatar Michal Kubecek 1-0/+6
Send ETHTOOL_MSG_FEATURES_NTF notification whenever network device features are modified using ETHTOOL_MSG_FEATURES_SET netlink message, ethtool ioctl request or any other way resulting in call to netdev_update_features() or netdev_change_features() Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12ethtool: set netdev features with FEATURES_SET requestGravatar Michal Kubecek 1-9/+47
Implement FEATURES_SET netlink request to set network device features. These are traditionally set using ETHTOOL_SFEATURES ioctl request. Actual change is subject to netdev_change_features() sanity checks so that it can differ from what was requested. Unlike with most other SET requests, in addition to error code and optional extack, kernel provides an optional reply message (ETHTOOL_MSG_FEATURES_SET_REPLY) in the same format but with different semantics: information about difference between user request and actual result and difference between old and new state of dev->features. This reply message can be suppressed by setting ETHTOOL_FLAG_OMIT_REPLY flag in request header. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12ethtool: provide netdev features with FEATURES_GET requestGravatar Michal Kubecek 1-9/+42
Implement FEATURES_GET request to get network device features. These are traditionally available via ETHTOOL_GFEATURES ioctl request. v2: - style cleanup suggested by Jakub Kicinski Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12tcp: bind(0) remove the SO_REUSEADDR restriction when ephemeral ports are ↵Gravatar Kuniyuki Iwashima 1-0/+9
exhausted. Commit aacd9289af8b82f5fb01bcdd53d0e3406d1333c7 ("tcp: bind() use stronger condition for bind_conflict") introduced a restriction to forbid to bind SO_REUSEADDR enabled sockets to the same (addr, port) tuple in order to assign ports dispersedly so that we can connect to the same remote host. The change results in accelerating port depletion so that we fail to bind sockets to the same local port even if we want to connect to the different remote hosts. You can reproduce this issue by following instructions below. 1. # sysctl -w net.ipv4.ip_local_port_range="32768 32768" 2. set SO_REUSEADDR to two sockets. 3. bind two sockets to (localhost, 0) and the latter fails. Therefore, when ephemeral ports are exhausted, bind(0) should fallback to the legacy behaviour to enable the SO_REUSEADDR option and make it possible to connect to different remote (addr, port) tuples. This patch allows us to bind SO_REUSEADDR enabled sockets to the same (addr, port) only when net.ipv4.ip_autobind_reuse is set 1 and all ephemeral ports are exhausted. This also allows connect() and listen() to share ports in the following way and may break some applications. So the ip_autobind_reuse is 0 by default and disables the feature. 1. setsockopt(sk1, SO_REUSEADDR) 2. setsockopt(sk2, SO_REUSEADDR) 3. bind(sk1, saddr, 0) 4. bind(sk2, saddr, 0) 5. connect(sk1, daddr) 6. listen(sk2) If it is set 1, we can fully utilize the 4-tuples, but we should use IP_BIND_ADDRESS_NO_PORT for bind()+connect() as possible. The notable thing is that if all sockets bound to the same port have both SO_REUSEADDR and SO_REUSEPORT enabled, we can bind sockets to an ephemeral port and also do listen(). Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-09linux-next: DOC: RDS: Fix a typo in rds.txtGravatar Masanari Iida 1-1/+1
This patch fix a spelling typo in rds.txt Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05bpf, doc: Add BPF JIT for RV32G to BPF documentationGravatar Luke Nelson 1-1/+1
Update filter.txt and admin-guide to mention the BPF JIT for RV32G. Co-developed-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: Luke Nelson <luke.r.nels@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Björn Töpel <bjorn.topel@gmail.com> Acked-by: Björn Töpel <bjorn.topel@gmail.com> Link: https://lore.kernel.org/bpf/20200305050207.4159-4-luke.r.nels@gmail.com
2020-03-03devlink: remove trigger command from devlink-region.rstGravatar Jacob Keller 1-3/+0
The devlink trigger command does not exist. While rewriting the documentation for devlink into the reStructuredText format, documentation for the trigger command was accidentally merged in. This occurred because the author was also working on a potential extension to devlink regions which included this trigger command, and accidentally squashed the documentation incorrectly. Further review eventually settled on using the previously unused "new" command instead of creating a new trigger command. Fix this by removing mention of the trigger command from the documentation. Fixes: 0b0f945f5458 ("devlink: add a file documenting devlink regions", 2020-01-10) Noticed-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-03docs: networking: net_failover: Fix a few typosGravatar Jonathan Neuschäfer 1-3/+3
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-03doc: sfp-phylink: correct code indentationGravatar Russell King 1-16/+16
Using vim to edit the phylink documentation reveals some mistakes due to the "invisible" pythonesque white space indentation that can't be seen with other editors. Fix it. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-28Merge tag 'mlx5-updates-2020-02-27' of ↵Gravatar David S. Miller 1-0/+6
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== mlx5-updates-2020-02-27 mlx5 misc updates and minor cleanups: 1) Use per vport tables for mirroring 2) Improve log messages for SW steering (DR) 3) Add devlink fdb_large_groups parameter 4) E-Switch, Allow goto earlier chain 5) Don't allow forwarding between uplink representors 6) Add support for devlink-port in non-representors mode 7) Minor misc cleanups ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netGravatar David S. Miller 1-2/+3
The mptcp conflict was overlapping additions. The SMC conflict was an additional and removal happening at the same time. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27net/mlx5e: Add devlink fdb_large_groups parameterGravatar Jianbo Liu 1-0/+6
Add a devlink parameter to control the number of large groups in a autogrouped flow table. The default value is 15, and the range is between 1 and 1024. The size of each large group can be calculated according to the following formula: size = 4M / (fdb_large_groups + 1). Examples: - Set the number of large groups to 20. $ devlink dev param set pci/0000:82:00.0 name fdb_large_groups \ cmode driverinit value 20 Then run devlink reload command to apply the new value. $ devlink dev reload pci/0000:82:00.0 - Read the number of large groups in flow table. $ devlink dev param show pci/0000:82:00.0 name fdb_large_groups pci/0000:82:00.0: name fdb_large_groups type driver-specific values: cmode driverinit value 20 Signed-off-by: Jianbo Liu <jianbol@mellanox.com> Reviewed-by: Vlad Buslov <vladbu@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-02-27net: phylink: propagate resolved link config via mac_link_up()Gravatar Russell King 1-3/+14
Propagate the resolved link parameters via the mac_link_up() call for MACs that do not automatically track their PCS state. We propagate the link parameters via function arguments so that inappropriate members of struct phylink_link_state can't be accessed, and creating a new structure just for this adds needless complexity to the API. Tested-by: Andre Przywara <andre.przywara@arm.com> Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-25Documentation: fix vxlan typo in mlx5.rstGravatar Hans Wippel 1-1/+1
Fix a vxlan typo in the mlx5 driver documentation. Signed-off-by: Hans Wippel <ndev@hwipl.net> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-02-24net: Special handling for IP & MPLS.Gravatar Martin Varghese 1-1/+19
Special handling is needed in bareudp module for IP & MPLS as they support more than one ethertypes. MPLS has 2 ethertypes. 0x8847 for MPLS unicast and 0x8848 for MPLS multicast. While decapsulating MPLS packet from UDP packet the tunnel destination IP address is checked to determine the ethertype. The ethertype of the packet will be set to 0x8848 if the tunnel destination IP address is a multicast IP address. The ethertype of the packet will be set to 0x8847 if the tunnel destination IP address is a unicast IP address. IP has 2 ethertypes.0x0800 for IPV4 and 0x86dd for IPv6. The version field of the IP header tunnelled will be checked to determine the ethertype. This special handling to tunnel additional ethertypes will be disabled by default and can be enabled using a flag called multiproto. This flag can be used only with ethertypes 0x8847 and 0x0800. Signed-off-by: Martin Varghese <martin.varghese@nokia.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-24net: UDP tunnel encapsulation module for tunnelling different protocols like ↵Gravatar Martin Varghese 2-0/+35
MPLS, IP, NSH etc. The Bareudp tunnel module provides a generic L3 encapsulation tunnelling module for tunnelling different protocols like MPLS, IP,NSH etc inside a UDP tunnel. Signed-off-by: Martin Varghese <martin.varghese@nokia.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-24devlink: add ACL generic packet trapsGravatar Jiri Pirko 1-0/+9
Add packet traps that can report packets that were dropped during ACL processing. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-23docs: networking: phy: Rephrase paragraph for clarityGravatar Jonathan Neuschäfer 1-2/+3
Let's make it a little easier to read. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-21net: page_pool: Add documentation on page_pool APIGravatar Ilias Apalodimas 1-0/+159
Add documentation explaining the basic functionality and design principles of the API Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-31netfilter: nf_flowtable: fix documentationGravatar Matteo Croce 1-1/+1
In the flowtable documentation there is a missing semicolon, the command as is would give this error: nftables.conf:5:27-33: Error: syntax error, unexpected devices, expecting newline or semicolon hook ingress priority 0 devices = { br0, pppoe-data }; ^^^^^^^ nftables.conf:4:12-13: Error: invalid hook (null) flowtable ft { ^^ Fixes: 19b351f16fd9 ("netfilter: add flowtable documentation") Signed-off-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-01-27Documentation: net: octeontx2: Add RVU HW and drivers overviewGravatar Sunil Goutham 2-0/+160
Added high level overview of OcteonTx2 RVU HW and functionality of various drivers which will be upstreamed. Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27devlink: document devlink info versions reported by bnxt_en driverGravatar Vasundhara Volam 1-0/+33
Add the set of info versions reported by bnxt_en driver, including a description of what the version represents, and what modes (fixed, running, stored) it reports. v2: Use fw.psid. Cc: Jiri Pirko <jiri@mellanox.com> Cc: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27devlink: add macro for "fw.roce"Gravatar Vasundhara Volam 1-0/+6
Add definition and documentation for the new generic info "fw.roce". v2: Remove board.nvm_cfg since fw.psid is similar. Cc: Jiri Pirko <jiri@mellanox.com> Cc: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27ethtool: add WOL_NTF notificationGravatar Michal Kubecek 1-2/+3
Send ETHTOOL_MSG_WOL_NTF notification whenever wake-on-lan settings of a device are modified using ETHTOOL_MSG_WOL_SET netlink message or ETHTOOL_SWOL ioctl request. As notifications can be received by anyone, do not include SecureOn(tm) password in notification messages. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27ethtool: set wake-on-lan settings with WOL_SET requestGravatar Michal Kubecek 1-1/+19
Implement WOL_SET netlink request to set wake-on-lan settings. This is equivalent to ETHTOOL_SWOL ioctl request. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27ethtool: provide WoL settings with WOL_GET requestGravatar Michal Kubecek 1-1/+29
Implement WOL_GET request to get wake-on-lan settings for a device, traditionally available via ETHTOOL_GWOL ioctl request. As part of the implementation, provide symbolic names for wake-on-line modes as ETH_SS_WOL_MODES string set. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27ethtool: add DEBUG_NTF notificationGravatar Michal Kubecek 1-0/+1
Send ETHTOOL_MSG_DEBUG_NTF notification message whenever debugging message mask for a device are modified using ETHTOOL_MSG_DEBUG_SET netlink message or ETHTOOL_SMSGLVL ioctl request. The notification message has the same format as reply to DEBUG_GET request. As with other ethtool notifications, netlink requests only trigger the notification if the mask is actually changed while ioctl request trigger it whenever the request results in calling the ethtool_ops handler. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27ethtool: set message mask with DEBUG_SET requestGravatar Michal Kubecek 1-1/+19
Implement DEBUG_SET netlink request to set debugging settings for a device. At the moment, only message mask corresponding to message level as set by ETHTOOL_SMSGLVL ioctl request can be set. (It is called message level in ioctl interface but almost all drivers interpret it as a bit mask.) Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-27ethtool: provide message mask with DEBUG_GET requestGravatar Michal Kubecek 1-1/+33
Implement DEBUG_GET request to get debugging settings for a device. At the moment, only message mask corresponding to message level as reported by ETHTOOL_GMSGLVL ioctl request is provided. (It is called message level in ioctl interface but almost all drivers interpret it as a bit mask.) As part of the implementation, provide symbolic names for message mask bits as ETH_SS_MSG_CLASSES string set. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-25hv_netvsc: Update document for XDP supportGravatar Haiyang Zhang 1-0/+21
Added the new section in the document regarding XDP support by hv_netvsc driver. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-19devlink: Add overlay source MAC is multicast trapGravatar Amit Cohen 1-0/+4
Add packet trap that can report NVE packets that the device decided to drop because their overlay source MAC is multicast. Signed-off-by: Amit Cohen <amitc@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-19devlink: Add tunnel generic packet trapsGravatar Amit Cohen 1-0/+8
Add packet traps that can report packets that were dropped during tunnel decapsulation. Signed-off-by: Amit Cohen <amitc@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-19devlink: Add non-routable packet trapGravatar Amit Cohen 1-0/+6
Add packet trap that can report packets that reached the router, but are non-routable. For example, IGMP queries can be flooded by the device in layer 2 and reach the router. Such packets should not be routed and instead dropped. Signed-off-by: Amit Cohen <amitc@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-19mlxsw: Add irif and erif disabled trapsGravatar Amit Cohen 2-0/+23
IRIF_DISABLED and ERIF_DISABLED are driver specific traps. Packets are dropped for these reasons when they need to be routed through/from existing router interfaces (RIF) which are disabled. Add devlink driver-specific traps and mlxsw trap IDs used to report these traps. Signed-off-by: Amit Cohen <amitc@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-17Documentation: Fix typo in devlink documentationGravatar Ido Schimmel 1-1/+1
The driver is named "mlxsw", not "mlx5". Fixes: d4255d75856f ("devlink: document info versions for each driver") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-15devlink: fix typos in qed documentationGravatar Jacob Keller 1-2/+2
Review of the recently added documentation file for the qed driver noticed a couple of typos. Fix them now. Noticed-by: Michal Kalderon <mkalderon@marvell.com> Fixes: 0f261c3ca09e ("devlink: add a driver-specific file for the qed driver") Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-10devlink: document region snapshot triggering from userspaceGravatar Jacob Keller 1-2/+8
Now that devlink regions can be triggered via DEVLINK_CMD_REGION_TRIGGER, document this in the devlink-region.rst file. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-10devlink: introduce devlink-dpipe.rst documentation fileGravatar Jacob Keller 2-0/+253
Primarily based on the DPIPE netdev conference paper, introduce a new file to document the dpipe interface. This likely needs further improvement, but is at least a good overall start. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-10devlink: add a devlink-resource.rst documentation fileGravatar Jacob Keller 2-0/+63
Take the little bit of documentation for resources from various commit messages and combine it into a new devlink-resource.rst file. This could probably be expanded on even further by someone with more knowledge of how the devlink resources work. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-10devlink: rename and expand devlink-trap-netdevsim.rstGravatar Jacob Keller 4-22/+74
Rename the trap-specific netdevimsim.rst file, and expand it to include documentation of all the devlink features currently implemented by the netdevsim driver code. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Cc: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>