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* net/mlx5: E-Switch, Get reg_c0 value on CQEPaul Blakey2020-02-201-0/+2
| | | | | | | | | | | | | | | | | | | On RX side create a restore table in OFFLOADS namespace. This table will match on all values for reg_c0 we will use, and set it to the flow_tag. This flow tag can then be read on the CQE. As there is no copy action from reg c0 to flow tag, instead we have to set the flow tag explictily. We add an API so callers can add all the used reg_c0 values (tags) and for each of those we add a restore rule. This will be used in a following patch to save the miss chain mapping tag on reg_c0 and from it restore the tc chain on the skb. Signed-off-by: Paul Blakey <paulb@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
* net/mlx5: E-Switch, Move source port on reg_c0 to the upper 16 bitsPaul Blakey2020-02-201-2/+27
| | | | | | | | | | | | | | | | | | | | | | | | | Multi chain support requires the miss path to continue the processing from the last chain id, and for that we need to save the chain miss tag (a mapping for 32bit chain id) on reg_c0 which will come in a next patch. Currently reg_c0 is exclusively used to store the source port metadata, giving it 32bit, it is created from 16bits of vcha_id, and 16bits of vport number. We will move this source port metadata to upper 16bits, and leave the lower bits for the chain miss tag. We compress the reg_c0 source port metadata to 16bits by taking 8 bits from vhca_id, and 8bits from the vport number. Since we compress the vport number to 8bits statically, and leave two top ids for special PF/ECPF numbers, we will only support a max of 254 vports with this strategy. Signed-off-by: Paul Blakey <paulb@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
* net: sched: Pass ingress block to tcf_classify_ingressPaul Blakey2020-02-202-2/+8
| | | | | | | | | | | | On ingress and cls_act qdiscs init, save the block on ingress mini_Qdisc and and pass it on to ingress classification, so it can be used for the looking up a specified chain index. Co-developed-by: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: Paul Blakey <paulb@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
* net: sched: Introduce ingress classification functionPaul Blakey2020-02-201-0/+10
| | | | | | | | | | | | | | | | | | | | | | TC multi chain configuration can cause offloaded tc chains to miss in hardware after jumping to some chain. In such cases the software should continue from the chain that missed in hardware, as the hardware may have manipulated the packet and updated some counters. Currently a single tcf classification function serves both ingress and egress. However, multi chain miss processing (get tc skb extension on hw miss, set tc skb extension on tc miss) should happen only on ingress. Refactor the code to use ingress classification function, and move setting the tc skb extension from general classification to it, as a prestep for supporting the hw miss scenario. Co-developed-by: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: Paul Blakey <paulb@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
* net: core: add helper tcp_v6_gso_csum_prepHeiner Kallweit2020-02-191-0/+9
| | | | | | | | | | | | Several network drivers for chips that support TSO6 share the same code for preparing the TCP header, so let's factor it out to a helper. A difference is that some drivers reset the payload_len whilst others don't do this. This value is overwritten by TSO anyway, therefore the new helper resets it in general. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ethtool: Add support for low latency RS FECAya Levin2020-02-191-1/+3
| | | | | | | | | | | | | Add support for low latency Reed Solomon FEC as LLRS. The LL-FEC is defined by the 25G/50G ethernet consortium, in the document titled "Low Latency Reed Solomon Forward Error Correction" Signed-off-by: Aya Levin <ayal@mellanox.com> Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com> CC: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
* net/mlx5: Add support for resource dumpAya Levin2020-02-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | On driver load: - Initialize resource dump data structure and memory access tools (mkey & pd). - Read the resource dump's menu which contains the FW segment identifier. Each record is identified by the segment name (ASCII). During the driver's course of life, users (like reporters) may request dumps per segment. The user should create a command providing the segment identifier (SW enumeration) and command keys. In return, the user receives a command context. In order to receive the dump, the user should supply the command context and a memory (aligned to a PAGE) on which the dump content will be written. Since the dump may be larger than the given memory, the user may resubmit the command until received an indication of end-of-dump. It is the user's responsibility to destroy the command. Signed-off-by: Aya Levin <ayal@mellanox.com> Reviewed-by: Moshe Shemesh <moshe@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
* devlink: Force enclosing array on binary fmsg dataAya Levin2020-02-191-0/+5
| | | | | | | | | | Add a new API for start/end binary array brackets [] to force array around binary data as required from JSON. With this restriction, re-open API to set binary fmsg data. Signed-off-by: Aya Levin <ayal@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
* net: sched: don't take rtnl lock during flow_action setupVlad Buslov2020-02-171-1/+1
| | | | | | | | | Refactor tc_setup_flow_action() function not to use rtnl lock and remove 'rtnl_held' argument that is no longer needed. Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: sched: refactor ct action helpers to require tcf_lockVlad Buslov2020-02-171-2/+4
| | | | | | | | | | | | | In order to remove rtnl lock dependency from flow_action representation translator, change rtnl_dereference() to rcu_dereference_protected() in ct action helpers that provide external access to zone and action values. This is safe to do because the functions are not called from anywhere else outside flow_action infrastructure which was modified to obtain tcf_lock when accessing action data in one of previous patches in the series. Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: sched: refactor police action helpers to require tcf_lockVlad Buslov2020-02-171-2/+4
| | | | | | | | | | | | | | In order to remove rtnl lock dependency from flow_action representation translator, change rcu_dereference_bh_rtnl() to rcu_dereference_protected() in police action helpers that provide external access to rate and burst values. This is safe to do because the functions are not called from anywhere else outside flow_action infrastructure which was modified to obtain tcf_lock when accessing action data in one of previous patches in the series. Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: sched: lock action when translating it to flow_action infraVlad Buslov2020-02-171-1/+1
| | | | | | | | | | | | | | | | | | In order to remove dependency on rtnl lock, take action's tcfa_lock when constructing its representation as flow_action_entry structure. Refactor tcf_sample_get_group() to assume that caller holds tcf_lock and don't take it manually. This callback is only called from flow_action infra representation translator which now calls it with tcf_lock held, so this refactoring is necessary to prevent deadlock. Allocate memory with GFP_ATOMIC flag for ip_tunnel_info copy because tcf_tunnel_info_copy() is only called from flow_action representation infra code with tcf_lock spinlock taken. Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: phylink: clarify flow control settings in documentationRussell King2020-02-171-8/+18
| | | | | | | | | Clarify the expected flow control settings operation in the phylink documentation for each negotiation mode. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: phylink: resolve fixed link flow controlRussell King2020-02-171-5/+3
| | | | | | | | | | Resolve the fixed link flow control using the recently introduced linkmode_resolve_pause() helper, which we use in phylink_get_fixed_state() only when operating in full duplex mode. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: add linkmode helper for setting flow control advertisementRussell King2020-02-171-0/+2
| | | | | | | | | | | Add a linkmode helper to set the flow control advertisement in an ethtool linkmode mask according to the tx/rx capabilities. This implementation is moved from phylib, and documented with an analysis of its shortcomings. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: add helpers to resolve negotiated flow controlRussell King2020-02-172-0/+7
| | | | | | | | | | | | | | | | | | Add a couple of helpers to resolve negotiated flow control. Two helpers are provided: - linkmode_resolve_pause() which takes the link partner and local advertisements, and decodes whether we should enable TX or RX pause at the MAC. This is useful outside of phylib, e.g. in phylink. - phy_get_pause(), which returns the TX/RX enablement status for the current negotiation results of the PHY. This allows us to centralise the flow control resolution, rather than spreading it around. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: linkmode: make linkmode_test_bit() take const pointerRussell King2020-02-171-1/+1
| | | | | | | | | | | linkmode_test_bit() does not modify the address; test_bit() is also declared const volatile for the same reason. There's no need for linkmode_test_bit() to be any different, and allows implementation of helpers that take a const linkmode pointer. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* openvswitch: add TTL decrement actionMatteo Croce2020-02-171-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New action to decrement TTL instead of setting it to a fixed value. This action will decrement the TTL and, in case of expired TTL, drop it or execute an action passed via a nested attribute. The default TTL expired action is to drop the packet. Supports both IPv4 and IPv6 via the ttl and hop_limit fields, respectively. Tested with a corresponding change in the userspace: # ovs-dpctl dump-flows in_port(2),eth(),eth_type(0x0800), packets:0, bytes:0, used:never, actions:dec_ttl{ttl<=1 action:(drop)},1 in_port(1),eth(),eth_type(0x0800), packets:0, bytes:0, used:never, actions:dec_ttl{ttl<=1 action:(drop)},2 in_port(1),eth(),eth_type(0x0806), packets:0, bytes:0, used:never, actions:2 in_port(2),eth(),eth_type(0x0806), packets:0, bytes:0, used:never, actions:1 # ping -c1 192.168.0.2 -t 42 IP (tos 0x0, ttl 41, id 61647, offset 0, flags [DF], proto ICMP (1), length 84) 192.168.0.1 > 192.168.0.2: ICMP echo request, id 386, seq 1, length 64 # ping -c1 192.168.0.2 -t 120 IP (tos 0x0, ttl 119, id 62070, offset 0, flags [DF], proto ICMP (1), length 84) 192.168.0.1 > 192.168.0.2: ICMP echo request, id 388, seq 1, length 64 # ping -c1 192.168.0.2 -t 1 # Co-developed-by: Bindiya Kurle <bindiyakurle@gmail.com> Signed-off-by: Bindiya Kurle <bindiyakurle@gmail.com> Signed-off-by: Matteo Croce <mcroce@redhat.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* tcp-zerocopy: Return sk_err (if set) along with tcp receive zerocopy.Arjun Roy2020-02-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | This patchset is intended to reduce the number of extra system calls imposed by TCP receive zerocopy. For ping-pong RPC style workloads, this patchset has demonstrated a system call reduction of about 30% when coupled with userspace changes. For applications using epoll, returning sk_err along with the result of tcp receive zerocopy could remove the need to call recvmsg()=-EAGAIN after a spurious wakeup. Consider a multi-threaded application using epoll. A thread may awaken with EPOLLIN but another thread may already be reading. The spuriously-awoken thread does not necessarily know that another thread 'won'; rather, it may be possible that it was woken up due to the presence of an error if there is no data. A zerocopy read receiving 0 bytes thus would need to be followed up by recvmsg to be sure. Instead, we return sk_err directly with zerocopy, so the application can avoid this extra system call. Signed-off-by: Arjun Roy <arjunroy@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tcp-zerocopy: Return inq along with tcp receive zerocopy.Arjun Roy2020-02-171-0/+1
| | | | | | | | | | | | | | | | | | | This patchset is intended to reduce the number of extra system calls imposed by TCP receive zerocopy. For ping-pong RPC style workloads, this patchset has demonstrated a system call reduction of about 30% when coupled with userspace changes. For applications using edge-triggered epoll, returning inq along with the result of tcp receive zerocopy could remove the need to call recvmsg()=-EAGAIN after a successful zerocopy. Generally speaking, since normally we would need to perform a recvmsg() call for every successful small RPC read via TCP receive zerocopy, returning inq can reduce the number of system calls performed by approximately half. Signed-off-by: Arjun Roy <arjunroy@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'mac80211-next-for-net-next-2020-02-14' of ↵David S. Miller2020-02-175-12/+202
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg says: ==================== A few big new things: * 802.11 frame encapsulation offload support * more HE (802.11ax) support, including some for 6 GHz band * powersave in hwsim, for better testing Of course as usual there are various cleanups and small fixes. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * mac80211: allow setting queue_len for drivers not using wake_tx_queueJohn Crispin2020-02-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | Currently a mac80211 driver can only set the txq_limit when using wake_tx_queue. Not all drivers use wake_tx_queue. This patch adds a new element to wiphy allowing a driver to set a custom tx_queue_len and the code that will apply it in case it is set. The current default is 1000 which is too low for ath11k when doing HE rates. Signed-off-by: John Crispin <john@phrozen.org> Link: https://lore.kernel.org/r/20200211122605.13002-1-john@phrozen.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * ieee80211: add WPA3 OWE AKM suite selectorSergey Matyukevich2020-02-141-0/+1
| | | | | | | | | | | | | | | | Add the definition for Opportunistic Wireless Encryption AKM selector. Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com> Link: https://lore.kernel.org/r/20200213131608.10541-3-sergey.matyukevich.os@quantenna.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: Fix setting txpower to zeroBen Greear2020-02-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With multiple VIFS ath10k, and probably others, tries to find the minimum txpower for all vifs and uses that when setting txpower in the firmware. If a second vif is added and starts to scan, it's txpower is not initialized yet and it set to zero. ath10k had a patch to ignore zero values, but then it is impossible to actually set txpower to zero. So, instead initialize the txpower to INT_MIN in mac80211, and let drivers know that means the power has not been set and so should be ignored. This should fix regression in: commit 88407beb1b1462f706a1950a355fd086e1c450b6 Author: Ryan Hsu <ryanhsu@qca.qualcomm.com> Date: Tue Dec 13 14:55:19 2016 -0800 ath10k: fix incorrect txpower set by P2P_DEVICE interface Tested on ath10k 9984 with ath10k-ct firmware. Signed-off-by: Ben Greear <greearb@candelatech.com> Link: https://lore.kernel.org/r/20191217183057.24586-1-greearb@candelatech.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * nl80211: add src and dst addr attributes for control port tx/rxMarkus Theil2020-02-072-2/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When using control port over nl80211 in AP mode with pre-authentication, APs need to forward frames to other APs defined by their MAC address. Before this patch, pre-auth frames reaching user space over nl80211 control port have no longer any information about the dest attached, which can be used for forwarding to a controller or injecting the frame back to a ethernet interface over a AF_PACKET socket. Analog problems exist, when forwarding pre-auth frames from AP -> STA. This patch therefore adds the NL80211_ATTR_DST_MAC and NL80211_ATTR_SRC_MAC attributes to provide more context information when forwarding. The respective arguments are optional on tx and included on rx. Therefore unaware existing software is not affected. Software which wants to detect this feature, can do so by checking against: NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_MAC_ADDRS Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Link: https://lore.kernel.org/r/20200115125522.3755-1-markus.theil@tu-ilmenau.de [split into separate cfg80211/mac80211 patches] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: parse also the RSNXE IEShaul Triebitz2020-02-071-0/+8
| | | | | | | | | | | | | | | | | | | | Parse also the RSN Extension IE when parsing the rest of the IEs. It will be used in a later patch. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/20200131111300.891737-21-luca@coelho.fi Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * ieee80211: fix 'the' doubling in commentsZvika Yehudai2020-02-071-3/+3
| | | | | | | | | | | | | | | | Remove redundant 'the' where 'the the' was written. Signed-off-by: Zvika Yehudai <zvikayeh@gmail.com> Link: https://lore.kernel.org/r/20200203080823.24949-1-zvikayeh@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * cfg80211: Enhance the AKM advertizement to support per interface.Veerendranath Jakkam2020-02-072-1/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit ab4dfa20534e ("cfg80211: Allow drivers to advertise supported AKM suites") introduces the support to advertize supported AKMs to userspace. This needs an enhancement to advertize the AKM support per interface type, specifically for the cfg80211-based drivers that implement SME and use different mechanisms to support the AKM's for each interface type (e.g., the support for SAE, OWE AKM's take different paths for such drivers on STA/AP mode). This commit aims the same and enhances the earlier mechanism of advertizing the AKMs per wiphy. Add new nl80211 attributes and data structure to provide supported AKMs per interface type to userspace. the AKMs advertized in akm_suites are default capabilities if not advertized for a specific interface type in iftype_akm_suites. Signed-off-by: Veerendranath Jakkam <vjakkam@codeaurora.org> Link: https://lore.kernel.org/r/20200126203032.21934-1-vjakkam@codeaurora.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * cfg80211: add no HE indication to the channel flagHaim Dreyfuss2020-02-072-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | The regulatory domain might forbid HE operation. Certain regulatory domains may restrict it for specific channels whereas others may do it for the whole regulatory domain. Add an option to indicate it in the channel flag. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/20200121081213.733757-1-luca@coelho.fi Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: add ieee80211_is_any_nullfunc()Thomas Pedersen2020-01-151-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 08a5bdde3812 ("mac80211: consider QoS Null frames for STA_NULLFUNC_ACKED") Fixed a bug where we failed to take into account a nullfunc frame can be either non-QoS or QoS. It turns out there is at least one more bug in ieee80211_sta_tx_notify(), introduced in commit 7b6ddeaf27ec ("mac80211: use QoS NDP for AP probing"), where we forgot to check for the QoS variant and so assumed the QoS nullfunc frame never went out Fix this by adding a helper ieee80211_is_any_nullfunc() which consolidates the check for non-QoS and QoS nullfunc frames. Replace existing compound conditionals and add a couple more missing checks for QoS variant. Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com> Link: https://lore.kernel.org/r/20200114055940.18502-3-thomas@adapt-ip.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: add handling for BSS colorJohn Crispin2020-01-152-2/+17
| | | | | | | | | | | | | | | | | | | | | | It is now possible to propagate BSS color settings into the subsystem. Lets make mac80211 also handle them so that we can send them further down the stack into the drivers. We drop the old bss_color field and change iwlwifi to use the new he_bss_color struct. Signed-off-by: John Crispin <john@phrozen.org> Link: https://lore.kernel.org/r/20191217141921.8114-2-john@phrozen.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * nl80211: add handling for BSS colorJohn Crispin2020-01-152-0/+41
| | | | | | | | | | | | | | | | | | | | This patch adds the attributes, policy and parsing code to allow userland to send the info about the BSS coloring settings to the kernel. Signed-off-by: John Crispin <john@phrozen.org> Link: https://lore.kernel.org/r/20191217141921.8114-1-john@phrozen.org [johannes: remove the strict policy parsing, that was a misunderstanding] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * Merge remote-tracking branch 'net-next/master' into mac80211-nextJohannes Berg2020-01-0278-209/+939
| |\ | | | | | | | | | | | | | | | | | | Merging to get the mac80211 updates that have since propagated into net-next. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | mac80211: add 802.11 encapsulation offloading supportJohn Crispin2019-12-131-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new transmit path for hardware that supports 802.11 encapsulation offloading. In those cases 802.3 frames get passed directly to the driver allowing the hardware to handle the encapsulation. Some features such as monitor mode and TKIP would break when encapsulation offloading is enabled. If any of these get enabled, the code will alwyas fallback to the normal sw encapsulation data path. The patch defines a secondary netdev_ops struct that the device gets assigned if 802.11 encap support is available and enabled. The driver needs to enable the support on a per vif basis if it finds that all pre-reqs are meet. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> Signed-off-by: John Crispin <john@phrozen.org> Link: https://lore.kernel.org/r/20191125100438.16539-1-john@phrozen.org [reword comments, remove SUPPORTS_80211_ENCAP HW flag, minor cleanups] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | wireless: Use offsetof instead of custom macro.Pi-Hsun Shih2019-12-131-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use offsetof to calculate offset of a field to take advantage of compiler built-in version when possible, and avoid UBSAN warning when compiling with Clang: ================================================================== UBSAN: Undefined behaviour in net/wireless/wext-core.c:525:14 member access within null pointer of type 'struct iw_point' CPU: 3 PID: 165 Comm: kworker/u16:3 Tainted: G S W 4.19.23 #43 Workqueue: cfg80211 __cfg80211_scan_done [cfg80211] Call trace: dump_backtrace+0x0/0x194 show_stack+0x20/0x2c __dump_stack+0x20/0x28 dump_stack+0x70/0x94 ubsan_epilogue+0x14/0x44 ubsan_type_mismatch_common+0xf4/0xfc __ubsan_handle_type_mismatch_v1+0x34/0x54 wireless_send_event+0x3cc/0x470 ___cfg80211_scan_done+0x13c/0x220 [cfg80211] __cfg80211_scan_done+0x28/0x34 [cfg80211] process_one_work+0x170/0x35c worker_thread+0x254/0x380 kthread+0x13c/0x158 ret_from_fork+0x10/0x18 =================================================================== Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Link: https://lore.kernel.org/r/20191204081307.138765-1-pihsun@chromium.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | trivial: mac80211: fix indentationJohn Crispin2019-12-131-1/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: John Crispin <john@phrozen.org> Link: https://lore.kernel.org/r/20191206143103.3645-1-john@phrozen.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | | ptp_qoriq: drop the code of alarmYangbo Lu2020-02-171-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | The alarm function hadn't been supported by PTP clock driver. The recommended solution PHC + phc2sys + nanosleep provides best performance. So drop the code of alarm in ptp_qoriq driver. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds2020-02-145-8/+32
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Fix interrupt name truncation in mv88e6xxx dsa driver, from Andrew Lunn. 2) Process generic XDP even if SKB is cloned, from Toke Høiland-Jørgensen. 3) Fix leak of kernel memory to userspace in smc, from Eric Dumazet. 4) Add some missing netlink attribute validation to matchall and flower, from Davide Caratti. 5) Send icmp responses properly when NAT has been applied to the frame before we get to the tunnel emitting the icmp, from Jason Donenfeld. 6) Make sure there is enough SKB headroom when adding dsa tags for qca and ar9331. From Per Forlin. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (62 commits) netdevice.h: fix all kernel-doc and Sphinx warnings net: dsa: tag_ar9331: Make sure there is headroom for tag net: dsa: tag_qca: Make sure there is headroom for tag net, ip6_tunnel: enhance tunnel locate with link check net/smc: no peer ID in CLC decline for SMCD net/smc: transfer fasync_list in case of fallback net: hns3: fix a copying IPv6 address error in hclge_fd_get_flow_tuples() net: hns3: fix VF bandwidth does not take effect in some case net: hns3: add management table after IMP reset mac80211: fix wrong 160/80+80 MHz setting cfg80211: add missing policy for NL80211_ATTR_STATUS_CODE xfrm: interface: use icmp_ndo_send helper wireguard: device: use icmp_ndo_send helper sunvnet: use icmp_ndo_send helper gtp: use icmp_ndo_send helper icmp: introduce helper for nat'd source address in network device context net/sched: flower: add missing validation of TCA_FLOWER_FLAGS net/sched: matchall: add missing validation of TCA_MATCHALL_FLAGS net/flow_dissector: remove unexist field description page_pool: refill page when alloc.count of pool is zero ...
| * | | netdevice.h: fix all kernel-doc and Sphinx warningsRandy Dunlap2020-02-141-1/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Eliminate all kernel-doc and Sphinx warnings in <linux/netdevice.h>. Fixes these warnings: ../include/linux/netdevice.h:2100: warning: Function parameter or member 'gso_partial_features' not described in 'net_device' ../include/linux/netdevice.h:2100: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device' ../include/linux/netdevice.h:2100: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device' ../include/linux/netdevice.h:2100: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device' ../include/linux/netdevice.h:2100: warning: Function parameter or member 'name_assign_type' not described in 'net_device' ../include/linux/netdevice.h:2100: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device' ../include/linux/netdevice.h:2100: warning: Function parameter or member 'mpls_ptr' not described in 'net_device' ../include/linux/netdevice.h:2100: warning: Function parameter or member 'xdp_prog' not described in 'net_device' ../include/linux/netdevice.h:2100: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device' ../include/linux/netdevice.h:2100: warning: Function parameter or member 'xdp_bulkq' not described in 'net_device' ../include/linux/netdevice.h:2100: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device' ../include/linux/netdevice.h:2100: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device' ../include/linux/netdevice.h:2100: warning: Function parameter or member 'qdisc_hash' not described in 'net_device' ../include/linux/netdevice.h:3552: WARNING: Inline emphasis start-string without end-string. ../include/linux/netdevice.h:3552: WARNING: Inline emphasis start-string without end-string. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | Merge tag 'mac80211-for-net-2020-02-14' of ↵David S. Miller2020-02-141-6/+5
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== Just a few fixes: * avoid running out of tracking space for frames that need to be reported to userspace by using more bits * fix beacon handling suppression by adding some relevant elements to the CRC calculation * fix quiet mode in action frames * fix crash in ethtool for virt_wifi and similar * add a missing policy entry * fix 160 & 80+80 bandwidth to take local capabilities into account ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | mac80211: use more bits for ack_frame_idJohannes Berg2020-02-071-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It turns out that this wasn't a good idea, I hit a test failure in hwsim due to this. That particular failure was easily worked around, but it raised questions: if an AP needs to, for example, send action frames to each connected station, the current limit is nowhere near enough (especially if those stations are sleeping and the frames are queued for a while.) Shuffle around some bits to make more room for ack_frame_id to allow up to 8192 queued up frames, that's enough for queueing 4 frames to each connected station, even at the maximum of 2007 stations on a single AP. We take the bits from band (which currently only 2 but I leave 3 in case we add another band) and from the hw_queue, which can only need 4 since it has a limit of 16 queues. Fixes: 6912daed05e1 ("mac80211: Shrink the size of ack_frame_id to make room for tx_time_est") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20200115122549.b9a4ef9f4980.Ied52ed90150220b83a280009c590b65d125d087c@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | | | icmp: introduce helper for nat'd source address in network device contextJason A. Donenfeld2020-02-132-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This introduces a helper function to be called only by network drivers that wraps calls to icmp[v6]_send in a conntrack transformation, in case NAT has been used. We don't want to pollute the non-driver path, though, so we introduce this as a helper to be called by places that actually make use of this, as suggested by Florian. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Cc: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | net/flow_dissector: remove unexist field descriptionHangbin Liu2020-02-131-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | @thoff has moved to struct flow_dissector_key_control. Fixes: 42aecaa9bb2b ("net: Get skb hash over flow_keys structure") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | Merge tag 'pm-5.6-rc2' of ↵Linus Torvalds2020-02-143-4/+2
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: "Fix three issues related to the handling of wakeup events signaled through the ACPI SCI while suspended to idle (Rafael Wysocki) and unexport an internal cpufreq variable (Yangtao Li)" * tag 'pm-5.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: PM: s2idle: Prevent spurious SCIs from waking up the system ACPICA: Introduce acpi_any_gpe_status_set() ACPI: PM: s2idle: Avoid possible race related to the EC GPE ACPI: EC: Fix flushing of pending work cpufreq: Make cpufreq_global_kobject static
| * \ \ \ \ Merge branch 'pm-cpufreq'Rafael J. Wysocki2020-02-141-3/+0
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pm-cpufreq: cpufreq: Make cpufreq_global_kobject static
| | * | | | | cpufreq: Make cpufreq_global_kobject staticYangtao Li2020-02-031-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq_global_kobject is only used internally by cpufreq.c after commit 2361be236662 ("cpufreq: Don't create empty /sys/devices/system/cpu/cpufreq directory"). Make it static. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> [ rjw: Add empty line after cpufreq_global_kobject definition ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | | | ACPICA: Introduce acpi_any_gpe_status_set()Rafael J. Wysocki2020-02-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce a new helper function, acpi_any_gpe_status_set(), for checking the status bits of all enabled GPEs in one go. It is needed to distinguish spurious SCIs from genuine ones when deciding whether or not to wake up the system from suspend-to-idle. Cc: 5.4+ <stable@vger.kernel.org> # 5.4+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | | | ACPI: PM: s2idle: Avoid possible race related to the EC GPERafael J. Wysocki2020-02-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is theoretically possible for the ACPI EC GPE to be set after the s2idle_ops->wake() called from s2idle_loop() has returned and before the subsequent pm_wakeup_pending() check is carried out. If that happens, the resulting wakeup event will cause the system to resume even though it may be a spurious one. To avoid that race, first make the ->wake() callback in struct platform_s2idle_ops return a bool value indicating whether or not to let the system resume and rearrange s2idle_loop() to use that value instad of the direct pm_wakeup_pending() call if ->wake() is present. Next, rework acpi_s2idle_wake() to process EC events and check pm_wakeup_pending() before re-arming the SCI for system wakeup to prevent it from triggering prematurely and add comments to that function to explain the rationale for the new code flow. Fixes: 56b991849009 ("PM: sleep: Simplify suspend-to-idle control flow") Cc: 5.4+ <stable@vger.kernel.org> # 5.4+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | | | | | linux/pipe_fs_i.h: fix kernel-doc warnings after @wait was splitRandy Dunlap2020-02-121-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix kernel-doc warnings in struct pipe_inode_info after @wait was split into @rd_wait and @wr_wait. include/linux/pipe_fs_i.h:66: warning: Function parameter or member 'rd_wait' not described in 'pipe_inode_info' include/linux/pipe_fs_i.h:66: warning: Function parameter or member 'wr_wait' not described in 'pipe_inode_info' Fixes: 0ddad21d3e99 ("pipe: use exclusive waits when reading or writing") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | Merge tag 'dax-fixes-5.6-rc1' of ↵Linus Torvalds2020-02-121-12/+2
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull dax fixes from Dan Williams: "A fix for an xfstest failure and some and an update that removes an fsdax dependency on block devices. Summary: - Fix RWF_NOWAIT writes to properly return -EAGAIN - Clean up an unused helper - Update dax_writeback_mapping_range to not need a block_device argument" * tag 'dax-fixes-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax: pass NOWAIT flag to iomap_apply dax: Get rid of fs_dax_get_by_host() helper dax: Pass dax_dev instead of bdev to dax_writeback_mapping_range()
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