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2022-07-14xsk: Mark napi_id on sendmsg()Maciej Fijalkowski
When application runs in busy poll mode and does not receive a single packet but only sends them, it is currently impossible to get into napi_busy_loop() as napi_id is only marked on Rx side in xsk_rcv_check(). In there, napi_id is being taken from xdp_rxq_info carried by xdp_buff. From Tx perspective, we do not have access to it. What we have handy is the xsk pool. Xsk pool works on a pool of internal xdp_buff wrappers called xdp_buff_xsk. AF_XDP ZC enabled drivers call xp_set_rxq_info() so each of xdp_buff_xsk has a valid pointer to xdp_rxq_info of underlying queue. Therefore, on Tx side, napi_id can be pulled from xs->pool->heads[0].xdp.rxq->napi_id. Hide this pointer chase under helper function, xsk_pool_get_napi_id(). Do this only for sockets working in ZC mode as otherwise rxq pointers would not be initialized. Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/bpf/20220707130842.49408-1-maciej.fijalkowski@intel.com
2022-07-14net/tls: Check for errors in tls_device_initTariq Toukan
Add missing error checks in tls_device_init. Fixes: e8f69799810c ("net/tls: Add generic NIC offload infrastructure") Reported-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://lore.kernel.org/r/20220714070754.1428-1-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-14netfilter: nf_nat: in nf_nat_initialized(), use const struct nf_conn *James Yonan
nf_nat_initialized() doesn't modify passed struct nf_conn, so declare as const. This is helpful for code readability and makes it possible to call nf_nat_initialized() with a const struct nf_conn *. Signed-off-by: James Yonan <james@openvpn.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-07-13net/sched: remove return value of unregister_tcf_proto_opsZhengchao Shao
Return value of unregister_tcf_proto_ops is unused, remove it. Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-13Merge tag 'wireless-next-2022-07-13' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== A fairly large set of updates for next, highlights: ath10k * ethernet frame format support rtw89 * TDLS support cfg80211/mac80211 * airtime fairness fixes * EHT support continued, especially in AP mode * initial (and still major) rework for multi-link operation (MLO) from 802.11be/wifi 7 As usual, also many small updates/cleanups/fixes/etc. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-13Merge tag 'wireless-2022-07-13' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless Johannes Berg says: ==================== A small set of fixes for * queue selection in mesh/ocb * queue handling on interface stop * hwsim virtio device vs. some other virtio changes * dt-bindings email addresses * color collision memory allocation * a const variable in rtw88 * shared SKB transmit in the ethernet format path * P2P client port authorization ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-13net: devlink: move unlocked function prototypes alongside the locked onesJiri Pirko
Maintain the same order as it is in devlink.c for function prototypes. The most of the locked variants would very likely soon be removed and the unlocked version would be the only one. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Acked-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-13raw: Fix a data-race around sysctl_raw_l3mdev_accept.Kuniyuki Iwashima
While reading sysctl_raw_l3mdev_accept, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 6897445fb194 ("net: provide a sysctl raw_l3mdev_accept for raw socket lookup with VRFs") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-13net: extract port range fields from fl_flow_keyMaksym Glubokiy
So it can be used for port range filter offloading. Co-developed-by: Volodymyr Mytnyk <volodymyr.mytnyk@plvision.eu> Signed-off-by: Volodymyr Mytnyk <volodymyr.mytnyk@plvision.eu> Signed-off-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-12net: change the type of ip_route_input_rcu to staticZhengchao Shao
The type of ip_route_input_rcu should be static. Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Link: https://lore.kernel.org/r/20220711073549.8947-1-shaozhengchao@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-12devlink: Remove unused functions devlink_rate_leaf_create/destroyMoshe Shemesh
The previous patch removed the last usage of the functions devlink_rate_leaf_create() and devlink_rate_nodes_destroy(). Thus, remove these function from devlink API. Signed-off-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-12devlink: Remove unused function devlink_rate_nodes_destroyMoshe Shemesh
The previous patch removed the last usage of the function devlink_rate_nodes_destroy(). Thus, remove this function from devlink API. Signed-off-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-11net/fq_impl: Use the bitmap API to allocate bitmapsChristophe JAILLET
Use bitmap_zalloc()/bitmap_free() instead of hand-writing them. It is less verbose and it improves the semantic. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/c7bf099af07eb497b02d195906ee8c11fea3b3bd.1657377335.git.christophe.jaillet@wanadoo.fr Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-11netfilter: nf_tables: move nft_cmp_fast_mask to where its usedFlorian Westphal
... and cast result to u32 so sparse won't complain anymore. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-07-11netfilter: nf_tables: add and use BE register load-store helpersFlorian Westphal
Same as the existing ones, no conversions. This is just for sparse sake only so that we no longer mix be16/u16 and be32/u32 types. Alternative is to add __force __beX in various places, but this seems nicer. objdiff shows no changes. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-07-11netfilter: nf_conntrack: add missing __rcu annotationsFlorian Westphal
Access to the hook pointers use correct helpers but the pointers lack the needed __rcu annotation. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-07-11netfilter: nf_flow_table: count pending offload workqueue tasksVlad Buslov
To improve hardware offload debuggability count pending 'add', 'del' and 'stats' flow_table offload workqueue tasks. Counters are incremented before scheduling new task and decremented when workqueue handler finishes executing. These counters allow user to diagnose congestion on hardware offload workqueues that can happen when either CPU is starved and workqueue jobs are executed at lower rate than new ones are added or when hardware/driver can't keep up with the rate. Implement the described counters as percpu counters inside new struct netns_ft which is stored inside struct net. Expose them via new procfs file '/proc/net/stats/nf_flowtable' that is similar to existing 'nf_conntrack' file. Signed-off-by: Vlad Buslov <vladbu@nvidia.com> Signed-off-by: Oz Shlomo <ozsh@nvidia.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-07-11net: Find dst with sk's xfrm policy not ctl_sksewookseo
If we set XFRM security policy by calling setsockopt with option IPV6_XFRM_POLICY, the policy will be stored in 'sock_policy' in 'sock' struct. However tcp_v6_send_response doesn't look up dst_entry with the actual socket but looks up with tcp control socket. This may cause a problem that a RST packet is sent without ESP encryption & peer's TCP socket can't receive it. This patch will make the function look up dest_entry with actual socket, if the socket has XFRM policy(sock_policy), so that the TCP response packet via this function can be encrypted, & aligned on the encrypted TCP socket. Tested: We encountered this problem when a TCP socket which is encrypted in ESP transport mode encryption, receives challenge ACK at SYN_SENT state. After receiving challenge ACK, TCP needs to send RST to establish the socket at next SYN try. But the RST was not encrypted & peer TCP socket still remains on ESTABLISHED state. So we verified this with test step as below. [Test step] 1. Making a TCP state mismatch between client(IDLE) & server(ESTABLISHED). 2. Client tries a new connection on the same TCP ports(src & dst). 3. Server will return challenge ACK instead of SYN,ACK. 4. Client will send RST to server to clear the SOCKET. 5. Client will retransmit SYN to server on the same TCP ports. [Expected result] The TCP connection should be established. Cc: Maciej Żenczykowski <maze@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Steffen Klassert <steffen.klassert@secunet.com> Cc: Sehee Lee <seheele@google.com> Signed-off-by: Sewook Seo <sewookseo@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nfDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) refcount_inc_not_zero() is not semantically equivalent to atomic_int_not_zero(), from Florian Westphal. My understanding was that refcount_*() API provides a wrapper to easier debugging of reference count leaks, however, there are semantic differences between these two APIs, where refcount_inc_not_zero() needs a barrier. Reason for this subtle difference to me is unknown. 2) packet logging is not correct for ARP and IP packets, from the ARP family and netdev/egress respectively. Use skb_network_offset() to reach the headers accordingly. 3) set element extension length have been growing over time, replace a BUG_ON by EINVAL which might be triggerable from userspace. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-09Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski
Daniel Borkmann says: ==================== pull-request: bpf-next 2022-07-09 We've added 94 non-merge commits during the last 19 day(s) which contain a total of 125 files changed, 5141 insertions(+), 6701 deletions(-). The main changes are: 1) Add new way for performing BTF type queries to BPF, from Daniel Müller. 2) Add inlining of calls to bpf_loop() helper when its function callback is statically known, from Eduard Zingerman. 3) Implement BPF TCP CC framework usability improvements, from Jörn-Thorben Hinz. 4) Add LSM flavor for attaching per-cgroup BPF programs to existing LSM hooks, from Stanislav Fomichev. 5) Remove all deprecated libbpf APIs in prep for 1.0 release, from Andrii Nakryiko. 6) Add benchmarks around local_storage to BPF selftests, from Dave Marchevsky. 7) AF_XDP sample removal (given move to libxdp) and various improvements around AF_XDP selftests, from Magnus Karlsson & Maciej Fijalkowski. 8) Add bpftool improvements for memcg probing and bash completion, from Quentin Monnet. 9) Add arm64 JIT support for BPF-2-BPF coupled with tail calls, from Jakub Sitnicki. 10) Sockmap optimizations around throughput of UDP transmissions which have been improved by 61%, from Cong Wang. 11) Rework perf's BPF prologue code to remove deprecated functions, from Jiri Olsa. 12) Fix sockmap teardown path to avoid sleepable sk_psock_stop, from John Fastabend. 13) Fix libbpf's cleanup around legacy kprobe/uprobe on error case, from Chuang Wang. 14) Fix libbpf's bpf_helpers.h to work with gcc for the case of its sec/pragma macro, from James Hilliard. 15) Fix libbpf's pt_regs macros for riscv to use a0 for RC register, from Yixun Lan. 16) Fix bpftool to show the name of type BPF_OBJ_LINK, from Yafang Shao. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (94 commits) selftests/bpf: Fix xdp_synproxy build failure if CONFIG_NF_CONNTRACK=m/n bpf: Correctly propagate errors up from bpf_core_composites_match libbpf: Disable SEC pragma macro on GCC bpf: Check attach_func_proto more carefully in check_return_code selftests/bpf: Add test involving restrict type qualifier bpftool: Add support for KIND_RESTRICT to gen min_core_btf command MAINTAINERS: Add entry for AF_XDP selftests files selftests, xsk: Rename AF_XDP testing app bpf, docs: Remove deprecated xsk libbpf APIs description selftests/bpf: Add benchmark for local_storage RCU Tasks Trace usage libbpf, riscv: Use a0 for RC register libbpf: Remove unnecessary usdt_rel_ip assignments selftests/bpf: Fix few more compiler warnings selftests/bpf: Fix bogus uninitialized variable warning bpftool: Remove zlib feature test from Makefile libbpf: Cleanup the legacy uprobe_event on failed add/attach_event() libbpf: Fix wrong variable used in perf_event_uprobe_open_legacy() libbpf: Cleanup the legacy kprobe_event on failed add/attach_event() selftests/bpf: Add type match test against kernel's task_struct selftests/bpf: Add nested type to type based tests ... ==================== Link: https://lore.kernel.org/r/20220708233145.32365-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-09netfilter: nf_tables: replace BUG_ON by element length checkPablo Neira Ayuso
BUG_ON can be triggered from userspace with an element with a large userdata area. Replace it by length check and return EINVAL instead. Over time extensions have been growing in size. Pick a sufficiently old Fixes: tag to propagate this fix. Fixes: 7d7402642eaf ("netfilter: nf_tables: variable sized set element keys / data") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-07-09mptcp: move MPTCPOPT_HMAC_LEN to net/mptcp.hGeliang Tang
Move macro MPTCPOPT_HMAC_LEN definition from net/mptcp/protocol.h to include/net/mptcp.h. Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Geliang Tang <geliang.tang@suse.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-099p: Add client parameter to p9_req_put()Kent Overstreet
This is to aid in adding mempools, in the next patch. Link: https://lkml.kernel.org/r/20220704014243.153050-2-kent.overstreet@gmail.com Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
2022-07-099p: Drop kref usageKent Overstreet
An upcoming patch is going to require passing the client through p9_req_put() -> p9_req_free(), but that's awkward with the kref indirection - so this patch switches to using refcount_t directly. Link: https://lkml.kernel.org/r/20220704014243.153050-1-kent.overstreet@gmail.com Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
2022-07-08tls: create an internal headerJakub Kicinski
include/net/tls.h is getting a little long, and is probably hard for driver authors to navigate. Split out the internals into a header which will live under net/tls/. While at it move some static inlines with a single user into the source files, add a few tls_ prefixes and fix spelling of 'proccess'. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-08tls: rx: always allocate max possible aad size for decryptJakub Kicinski
AAD size is either 5 or 13. Really no point complicating the code for the 8B of difference. This will also let us turn the chunked up buffer into a sane struct. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-08strparser: pad sk_skb_cb to avoid straddling cachelinesJakub Kicinski
sk_skb_cb lives within skb->cb[]. skb->cb[] straddles 2 cache lines, each containing 24B of data. The first cache line does not contain much interesting information for users of strparser, so pad things a little. Previously strp_msg->full_len would live in the first cache line and strp_msg->offset in the second. We need to reorder the 8 byte temp_reg with struct tls_msg to prevent a 4B hole which would push the struct over 48B. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-08net: Fix data-races around sysctl_mem.Kuniyuki Iwashima
While reading .sysctl_mem, it can be changed concurrently. So, we need to add READ_ONCE() to avoid data-races. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-06tls: rx: add sockopt for enabling optimistic decrypt with TLS 1.3Jakub Kicinski
Since optimisitic decrypt may add extra load in case of retries require socket owner to explicitly opt-in. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-06net/sched: act_police: allow 'continue' action offloadVlad Buslov
Offloading police with action TC_ACT_UNSPEC was erroneously disabled even though it was supported by mlx5 matchall offload implementation, which didn't verify the action type but instead assumed that any single police action attached to matchall classifier is a 'continue' action. Lack of action type check made it non-obvious what mlx5 matchall implementation actually supports and caused implementers and reviewers of referenced commits to disallow it as a part of improved validation code. Fixes: b8cd5831c61c ("net: flow_offload: add tc police action parameters") Fixes: b50e462bc22d ("net/sched: act_police: Add extack messages for offload failure") Signed-off-by: Vlad Buslov <vladbu@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Tested-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-05net: sched: provide shim definitions for taprio_offload_{get,free}Vladimir Oltean
All callers of taprio_offload_get() and taprio_offload_free() prior to the blamed commit are conditionally compiled based on CONFIG_NET_SCH_TAPRIO. felix_vsc9959.c is different; it provides vsc9959_qos_port_tas_set() even when taprio is compiled out. Provide shim definitions for the functions exported by taprio so that felix_vsc9959.c is able to compile. vsc9959_qos_port_tas_set() in that case is dead code anyway, and ocelot_port->taprio remains NULL, which is fine for the rest of the logic. Fixes: 1c9017e44af2 ("net: dsa: felix: keep reference on entire tc-taprio config") Reported-by: Colin Foster <colin.foster@in-advantage.com> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Tested-by: Colin Foster <colin.foster@in-advantage.com> Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> Link: https://lore.kernel.org/r/20220704190241.1288847-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-02net: dsa: tag_ksz: add tag handling for Microchip LAN937xPrasanna Vengateshan
The Microchip LAN937X switches have a tagging protocol which is very similar to KSZ tagging. So that the implementation is added to tag_ksz.c and reused common APIs Signed-off-by: Prasanna Vengateshan <prasanna.vengateshan@microchip.com> Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-029p fid refcount: add a 9p_fid_ref tracepointDominique Martinet
This adds a tracepoint event for 9p fid lifecycle tracing: when a fid is created, its reference count increased/decreased, and freed. The new 9p_fid_ref tracepoint should help anyone wishing to debug any fid problem such as missing clunk (destroy) or use-after-free. Link: https://lkml.kernel.org/r/20220612085330.1451496-6-asmadeus@codewreck.org Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
2022-07-029p fid refcount: add p9_fid_get/put wrappersDominique Martinet
I was recently reminded that it is not clear that p9_client_clunk() was actually just decrementing refcount and clunking only when that reaches zero: make it clear through a set of helpers. This will also allow instrumenting refcounting better for debugging next patch Link: https://lkml.kernel.org/r/20220612085330.1451496-5-asmadeus@codewreck.org Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com> Reviewed-by: Christian Schoenebeck <linux_oss@crudebyte.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
2022-07-01net: remove SK_RECLAIM_THRESHOLD and SK_RECLAIM_CHUNKPaolo Abeni
There are no more users for the mentioned macros, just drop them. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-01wifi: nl80211: retrieve EHT related elements in AP modeAloka Dixit
Add support to retrieve EHT capabilities and EHT operation elements passed by the userspace in the beacon template and store the pointers in struct cfg80211_ap_settings to be used by the drivers. Co-developed-by: Vikram Kandukuri <quic_vikram@quicinc.com> Signed-off-by: Vikram Kandukuri <quic_vikram@quicinc.com> Co-developed-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com> Link: https://lore.kernel.org/r/20220523064904.28523-1-quic_alokad@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: cfg80211: Increase akm_suites array size in cfg80211_crypto_settingsVeerendranath Jakkam
Increase akm_suites array size in struct cfg80211_crypto_settings to 10 and advertise the capability to userspace. This allows userspace to send more than two AKMs to driver in netlink commands such as NL80211_CMD_CONNECT. This capability is needed for implementing WPA3-Personal transition mode correctly with any driver that handles roaming internally. Currently, the possible AKMs for multi-AKM connect can include PSK, PSK-SHA-256, SAE, FT-PSK and FT-SAE. Since the count is already 5, increasing the akm_suites array size to 10 should be reasonable for future usecases. Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Link: https://lore.kernel.org/r/1653312358-12321-1-git-send-email-quic_vjakkam@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: mac80211: switch airtime fairness back to deficit round-robin schedulingFelix Fietkau
This reverts commits 6a789ba679d652587532cec2a0e0274fda172f3b and 2433647bc8d983a543e7d31b41ca2de1c7e2c198. The virtual time scheduler code has a number of issues: - queues slowed down by hardware/firmware powersave handling were not properly handled. - on ath10k in push-pull mode, tx queues that the driver tries to pull from were starved, causing excessive latency - delay between tx enqueue and reported airtime use were causing excessively bursty tx behavior The bursty behavior may also be present on the round-robin scheduler, but there it is much easier to fix without introducing additional regressions Signed-off-by: Felix Fietkau <nbd@nbd.name> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> Link: https://lore.kernel.org/r/20220625212411.36675-1-nbd@nbd.name Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: mac80211: fix a kernel-doc complaintJohannes Berg
Somehow kernel-doc complains here about strong markup, but we really don't need the [] so just remove that. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: cfg80211: remove redundant documentationJohannes Berg
These struct members no longer exist, remove them from documentation. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: mac80211: add a missing comma at kernel-doc markupMauro Carvalho Chehab
The lack of the colon makes it not parse the function parameter: include/net/mac80211.h:6250: warning: Function parameter or member 'vif' not described in 'ieee80211_channel_switch_disconnect' Fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/11c1bdb861d89c93058fcfe312749b482851cbdb.1656409369.git.mchehab@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: cfg80211: fix kernel-doc warnings all over the fileMauro Carvalho Chehab
There are currently 17 kernel-doc warnings on this file: include/net/cfg80211.h:391: warning: Function parameter or member 'bw' not described in 'ieee80211_eht_mcs_nss_supp' include/net/cfg80211.h:437: warning: Function parameter or member 'eht_cap' not described in 'ieee80211_sband_iftype_data' include/net/cfg80211.h:507: warning: Function parameter or member 's1g' not described in 'ieee80211_sta_s1g_cap' include/net/cfg80211.h:1390: warning: Function parameter or member 'counter_offset_beacon' not described in 'cfg80211_color_change_settings' include/net/cfg80211.h:1390: warning: Function parameter or member 'counter_offset_presp' not described in 'cfg80211_color_change_settings' include/net/cfg80211.h:1430: warning: Enum value 'STATION_PARAM_APPLY_STA_TXPOWER' not described in enum 'station_parameters_apply_mask' include/net/cfg80211.h:2195: warning: Function parameter or member 'dot11MeshConnectedToAuthServer' not described in 'mesh_config' include/net/cfg80211.h:2341: warning: Function parameter or member 'short_ssid' not described in 'cfg80211_scan_6ghz_params' include/net/cfg80211.h:3328: warning: Function parameter or member 'kck_len' not described in 'cfg80211_gtk_rekey_data' include/net/cfg80211.h:3698: warning: Function parameter or member 'ftm' not described in 'cfg80211_pmsr_result' include/net/cfg80211.h:3828: warning: Function parameter or member 'global_mcast_stypes' not described in 'mgmt_frame_regs' include/net/cfg80211.h:4977: warning: Function parameter or member 'ftm' not described in 'cfg80211_pmsr_capabilities' include/net/cfg80211.h:5742: warning: Function parameter or member 'u' not described in 'wireless_dev' include/net/cfg80211.h:5742: warning: Function parameter or member 'links' not described in 'wireless_dev' include/net/cfg80211.h:5742: warning: Function parameter or member 'valid_links' not described in 'wireless_dev' include/net/cfg80211.h:6076: warning: Function parameter or member 'is_amsdu' not described in 'ieee80211_data_to_8023_exthdr' include/net/cfg80211.h:6949: warning: Function parameter or member 'sig_dbm' not described in 'cfg80211_notify_new_peer_candidate' Address them, in order to build a better documentation from this header. Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/f6f522cdc716a01744bb0eae2186f4592976222b.1656409369.git.mchehab@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c 9c5de246c1db ("net: sparx5: mdb add/del handle non-sparx5 devices") fbb89d02e33a ("net: sparx5: Allow mdb entries to both CPU and ports") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-30net, neigh: introduce interval_probe_time_ms for periodic probeYuwei Wang
commit ed6cd6a17896 ("net, neigh: Set lower cap for neigh_managed_work rearming") fixed a case when DELAY_PROBE_TIME is configured to 0, the processing of the system work queue hog CPU to 100%, and further more we should introduce a new option used by periodic probe Signed-off-by: Yuwei Wang <wangyuweihx@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-06-29net: switchdev: add reminder near struct switchdev_notifier_fdb_infoVladimir Oltean
br_switchdev_fdb_notify() creates an on-stack FDB info variable, and initializes it member by member. As such, newly added fields which are not initialized by br_switchdev_fdb_notify() will contain junk bytes from the stack. Other uses of struct switchdev_notifier_fdb_info have a struct initializer which should put zeroes in the uninitialized fields. Add a reminder above the structure for future developers. Recently discussed during review. Link: https://patchwork.kernel.org/project/netdevbpf/patch/20220524152144.40527-2-schultz.hans+netdev@gmail.com/#24877698 Link: https://patchwork.kernel.org/project/netdevbpf/patch/20220524152144.40527-3-schultz.hans+netdev@gmail.com/#24912269 Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://lore.kernel.org/r/20220628100831.2899434-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-29net: dsa: add get_pause_stats supportOleksij Rempel
Add support for pause stats Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-29wifi: mac80211: add gfp_t parameter to ieeee80211_obss_color_collision_notifyLorenzo Bianconi
Introduce the capability to specify gfp_t parameter to ieeee80211_obss_color_collision_notify routine since it runs in interrupt context in ieee80211_rx_check_bss_color_collision(). Fixes: 6d945a33f2b0a ("mac80211: introduce BSS color collision detection") Co-developed-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/02c990fb3fbd929c8548a656477d20d6c0427a13.1655419135.git.lorenzo@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-27netfilter: nf_tables: avoid skb access on nf_stolenFlorian Westphal
When verdict is NF_STOLEN, the skb might have been freed. When tracing is enabled, this can result in a use-after-free: 1. access to skb->nf_trace 2. access to skb->mark 3. computation of trace id 4. dump of packet payload To avoid 1, keep a cached copy of skb->nf_trace in the trace state struct. Refresh this copy whenever verdict is != STOLEN. Avoid 2 by skipping skb->mark access if verdict is STOLEN. 3 is avoided by precomputing the trace id. Only dump the packet when verdict is not "STOLEN". Reported-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-06-27net: dsa: add Renesas RZ/N1 switch tag driverClément Léger
The switch that is present on the Renesas RZ/N1 SoC uses a specific VLAN value followed by 6 bytes which contains forwarding configuration. Signed-off-by: Clément Léger <clement.leger@bootlin.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>