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Author SHA1 Message Date
Eric Dumazet
e5b7aefe38 net: gro: move two declarations to include/net/gro.h
Move gro_find_receive_by_type() and gro_find_complete_by_type()
to include/net/gro.h where they belong.

Also use _NET_GRO_H instead of _NET_IPV6_GRO_H to protect
include/net/gro.h from multiple inclusions.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240308102230.296224-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-11 14:13:14 -07:00
Linus Torvalds
d2c84bdce2 for-6.9/io_uring-20240310
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Merge tag 'for-6.9/io_uring-20240310' of git://git.kernel.dk/linux

Pull io_uring updates from Jens Axboe:

 - Make running of task_work internal loops more fair, and unify how the
   different methods deal with them (me)

 - Support for per-ring NAPI. The two minor networking patches are in a
   shared branch with netdev (Stefan)

 - Add support for truncate (Tony)

 - Export SQPOLL utilization stats (Xiaobing)

 - Multishot fixes (Pavel)

 - Fix for a race in manipulating the request flags via poll (Pavel)

 - Cleanup the multishot checking by making it generic, moving it out of
   opcode handlers (Pavel)

 - Various tweaks and cleanups (me, Kunwu, Alexander)

* tag 'for-6.9/io_uring-20240310' of git://git.kernel.dk/linux: (53 commits)
  io_uring: Fix sqpoll utilization check racing with dying sqpoll
  io_uring/net: dedup io_recv_finish req completion
  io_uring: refactor DEFER_TASKRUN multishot checks
  io_uring: fix mshot io-wq checks
  io_uring/net: add io_req_msg_cleanup() helper
  io_uring/net: simplify msghd->msg_inq checking
  io_uring/kbuf: rename REQ_F_PARTIAL_IO to REQ_F_BL_NO_RECYCLE
  io_uring/net: remove dependency on REQ_F_PARTIAL_IO for sr->done_io
  io_uring/net: correctly handle multishot recvmsg retry setup
  io_uring/net: clear REQ_F_BL_EMPTY in the multishot retry handler
  io_uring: fix io_queue_proc modifying req->flags
  io_uring: fix mshot read defer taskrun cqe posting
  io_uring/net: fix overflow check in io_recvmsg_mshot_prep()
  io_uring/net: correct the type of variable
  io_uring/sqpoll: statistics of the true utilization of sq threads
  io_uring/net: move recv/recvmsg flags out of retry loop
  io_uring/kbuf: flag request if buffer pool is empty after buffer pick
  io_uring/net: improve the usercopy for sendmsg/recvmsg
  io_uring/net: move receive multishot out of the generic msghdr path
  io_uring/net: unify how recvmsg and sendmsg copy in the msghdr
  ...
2024-03-11 11:35:31 -07:00
Jakub Kicinski
2f901582f0 bluetooth-next pull request for net-next:
- hci_conn: Only do ACL connections sequentially
  - hci_core: Cancel request on command timeout
  - Remove CONFIG_BT_HS
  - btrtl: Add the support for RTL8852BT/RTL8852BE-VT
  - btusb: Add support Mediatek MT7920
  - btusb: Add new VID/PID 13d3/3602 for MT7925
  - Add new quirk for broken read key length on ATS2851
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Merge tag 'for-net-next-2024-03-08' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next

Luiz Augusto von Dentz says:

====================
bluetooth-next pull request for net-next:

 - hci_conn: Only do ACL connections sequentially
 - hci_core: Cancel request on command timeout
 - Remove CONFIG_BT_HS
 - btrtl: Add the support for RTL8852BT/RTL8852BE-VT
 - btusb: Add support Mediatek MT7920
 - btusb: Add new VID/PID 13d3/3602 for MT7925
 - Add new quirk for broken read key length on ATS2851

* tag 'for-net-next-2024-03-08' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next: (52 commits)
  Bluetooth: hci_sync: Fix UAF in hci_acl_create_conn_sync
  Bluetooth: Fix eir name length
  Bluetooth: ISO: Align broadcast sync_timeout with connection timeout
  Bluetooth: Add new quirk for broken read key length on ATS2851
  Bluetooth: mgmt: remove NULL check in add_ext_adv_params_complete()
  Bluetooth: mgmt: remove NULL check in mgmt_set_connectable_complete()
  Bluetooth: btusb: Add support Mediatek MT7920
  Bluetooth: btmtk: Add MODULE_FIRMWARE() for MT7922
  Bluetooth: btnxpuart: Fix btnxpuart_close
  Bluetooth: ISO: Clean up returns values in iso_connect_ind()
  Bluetooth: fix use-after-free in accessing skb after sending it
  Bluetooth: af_bluetooth: Fix deadlock
  Bluetooth: bnep: Fix out-of-bound access
  Bluetooth: btusb: Fix memory leak
  Bluetooth: msft: Fix memory leak
  Bluetooth: hci_core: Fix possible buffer overflow
  Bluetooth: btrtl: fix out of bounds memory access
  Bluetooth: hci_h5: Add ability to allocate memory for private data
  Bluetooth: hci_sync: Fix overwriting request callback
  Bluetooth: hci_sync: Use QoS to determine which PHY to scan
  ...
====================

Link: https://lore.kernel.org/r/20240308181056.120547-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-08 20:37:32 -08:00
Jakub Kicinski
2612b9f10c Merge tag 'ieee802154-for-net-next-2024-03-07' of git://git.kernel.org/pub/scm/linux/kernel/git/wpan/wpan-next
Stefan Schmidt says:

====================
pull-request: ieee802154-next 2024-03-07

Various cross tree patches for ieee802154v drivers and a resource leak
fix for ieee802154 llsec.

Andy Shevchenko changed GPIO header usage for at86rf230 and mcr20a to
only include needed headers.

Bo Liu converted the at86rf230, mcr20a and mrf24j40 driver regmap
support to use the maple tree register cache.

Fedor Pchelkin fixed a resource leak in the llsec key deletion path.

Ricardo B. Marliere made wpan_phy_class const.

Tejun Heo removed WQ_UNBOUND from a workqueue call in ca8210.

* tag 'ieee802154-for-net-next-2024-03-07' of git://git.kernel.org/pub/scm/linux/kernel/git/wpan/wpan-next:
  ieee802154: cfg802154: make wpan_phy_class constant
  ieee802154: mcr20a: Remove unused of_gpio.h
  ieee802154: at86rf230: Replace of_gpio.h by proper one
  mac802154: fix llsec key resources release in mac802154_llsec_key_del
  ieee802154: ca8210: Drop spurious WQ_UNBOUND from alloc_ordered_workqueue() call
  net: ieee802154: mrf24j40: convert to use maple tree register cache
  net: ieee802154: mcr20a: convert to use maple tree register cache
  net: ieee802154: at86rf230: convert to use maple tree register cache
====================

Link: https://lore.kernel.org/r/20240307195105.292085-1-stefan@datenfreihafen.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-08 20:35:33 -08:00
Jakub Kicinski
75c2946db3 wireless-next patches for v6.9
The fourth "new features" pull request for v6.9 with changes both in
 stack and in drivers. The theme in this pull request is to fix sparse
 warnings but we still have some left in wireless subsystem. Otherwise
 quite normal.
 
 Major changes:
 
 rtw89
 
 * NL80211_EXT_FEATURE_SCAN_RANDOM_SN support
 
 * NL80211_EXT_FEATURE_SET_SCAN_DWELL support
 
 rtw88
 
 * support for more rtw8811cu and rtw8821cu devices
 
 mt76
 
 * mt76x2u: add Netgear WNDA3100v3 USB
 
 * mt7915: newer ADIE version support
 
 * mt7925: radio temperature sensor support
 
 * mt7996: remove GCMP IGTK offload
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Merge tag 'wireless-next-2024-03-08' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Kalle Valo says:

====================
wireless-next patches for v6.9

The fourth "new features" pull request for v6.9 with changes both in
stack and in drivers. The theme in this pull request is to fix sparse
warnings but we still have some left in wireless subsystem. Otherwise
quite normal.

Major changes:

rtw89
 * NL80211_EXT_FEATURE_SCAN_RANDOM_SN support
 * NL80211_EXT_FEATURE_SET_SCAN_DWELL support

rtw88
 * support for more rtw8811cu and rtw8821cu devices

mt76
 * mt76x2u: add Netgear WNDA3100v3 USB
 * mt7915: newer ADIE version support
 * mt7925: radio temperature sensor support
 * mt7996: remove GCMP IGTK offload

* tag 'wireless-next-2024-03-08' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (125 commits)
  wifi: rtw89: wow: move release offload packet earlier for WoWLAN mode
  wifi: rtw89: wow: set security engine options for 802.11ax chips only
  wifi: rtw89: update suspend/resume for different generation
  wifi: rtw89: wow: update config mac function with different generation
  wifi: rtw89: update DMA function with different generation
  wifi: rtw89: wow: update WoWLAN status register for different generation
  wifi: rtw89: wow: update WoWLAN reason register for different chips
  wifi: brcm80211: handle pmk_op allocation failure
  wifi: rtw89: coex: Add coexistence policy to decrease WiFi packet CRC-ERR
  wifi: rtw89: coex: When Bluetooth not available don't set power/gain
  wifi: rtw89: coex: add return value to ensure H2C command is success or not
  wifi: rtw89: coex: Reorder H2C command index to align with firmware
  wifi: rtw89: coex: add BTC ctrl_info version 7 and related logic
  wifi: rtw89: coex: add init_info H2C command format version 7
  wifi: rtw89: 8922a: add coexistence helpers of SW grant
  wifi: rtw89: mac: add coexistence helpers {cfg/get}_plt
  wifi: cw1200: restore endian swapping
  wifi: wlcore: sdio: Rate limit wl12xx_sdio_raw_{read,write}() failures warns
  wifi: rtlwifi: Remove rtl_intf_ops.read_efuse_byte
  wifi: rtw88: 8821c: Fix false alarm count
  ...
====================

Link: https://lore.kernel.org/r/20240308100429.B8EA2C433F1@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-08 09:05:49 -08:00
Ido Schimmel
5072ae00ae net: nexthop: Expose nexthop group HW stats to user space
Add netlink support for reading NH group hardware stats.

Stats collection is done through a new notifier,
NEXTHOP_EVENT_HW_STATS_REPORT_DELTA. Drivers that implement HW counters for
a given NH group are thereby asked to collect the stats and report back to
core by calling nh_grp_hw_stats_report_delta(). This is similar to what
netdevice L3 stats do.

Besides exposing number of packets that passed in the HW datapath, also
include information on whether any driver actually realizes the counters.
The core can tell based on whether it got any _report_delta() reports from
the drivers. This allows enabling the statistics at the group at any time,
with drivers opting into supporting them. This is also in line with what
netdevice L3 stats are doing.

So as not to waste time and space, tie the collection and reporting of HW
stats with a new op flag, NHA_OP_FLAG_DUMP_HW_STATS.

Co-developed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Kees Cook <keescook@chromium.org> # For the __counted_by bits
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-03-08 10:35:47 +00:00
Ido Schimmel
746c19a52e net: nexthop: Add ability to enable / disable hardware statistics
Add netlink support for enabling collection of HW statistics on nexthop
groups.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-03-08 10:35:47 +00:00
Ido Schimmel
5877786fcf net: nexthop: Add hardware statistics notifications
Add hw_stats field to several notifier structures to communicate to the
drivers that HW statistics should be configured for nexthops within a given
group.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-03-08 10:35:47 +00:00
Ido Schimmel
f4676ea74b net: nexthop: Add nexthop group entry stats
Add nexthop group entry stats to count the number of packets forwarded
via each nexthop in the group. The stats will be exposed to user space
for better data path observability in the next patch.

The per-CPU stats pointer is placed at the beginning of 'struct
nh_grp_entry', so that all the fields accessed for the data path reside
on the same cache line:

struct nh_grp_entry {
        struct nexthop *           nh;                   /*     0     8 */
        struct nh_grp_entry_stats * stats;               /*     8     8 */
        u8                         weight;               /*    16     1 */

        /* XXX 7 bytes hole, try to pack */

        union {
                struct {
                        atomic_t   upper_bound;          /*    24     4 */
                } hthr;                                  /*    24     4 */
                struct {
                        struct list_head uw_nh_entry;    /*    24    16 */
                        u16        count_buckets;        /*    40     2 */
                        u16        wants_buckets;        /*    42     2 */
                } res;                                   /*    24    24 */
        };                                               /*    24    24 */
        struct list_head           nh_list;              /*    48    16 */
        /* --- cacheline 1 boundary (64 bytes) --- */
        struct nexthop *           nh_parent;            /*    64     8 */

        /* size: 72, cachelines: 2, members: 6 */
        /* sum members: 65, holes: 1, sum holes: 7 */
        /* last cacheline: 8 bytes */
};

Co-developed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-03-08 10:35:46 +00:00
Jakub Kicinski
92f8b1f5ca netdev: add queue stat for alloc failures
Rx alloc failures are commonly counted by drivers.
Support reporting those via netdev-genl queue stats.

Acked-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Amritha Nambiar <amritha.nambiar@intel.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240306195509.1502746-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:13:26 -08:00
Jakub Kicinski
ab63a2387c netdev: add per-queue statistics
The ethtool-nl family does a good job exposing various protocol
related and IEEE/IETF statistics which used to get dumped under
ethtool -S, with creative names. Queue stats don't have a netlink
API, yet, and remain a lion's share of ethtool -S output for new
drivers. Not only is that bad because the names differ driver to
driver but it's also bug-prone. Intuitively drivers try to report
only the stats for active queues, but querying ethtool stats
involves multiple system calls, and the number of stats is
read separately from the stats themselves. Worse still when user
space asks for values of the stats, it doesn't inform the kernel
how big the buffer is. If number of stats increases in the meantime
kernel will overflow user buffer.

Add a netlink API for dumping queue stats. Queue information is
exposed via the netdev-genl family, so add the stats there.
Support per-queue and sum-for-device dumps. Latter will be useful
when subsequent patches add more interesting common stats than
just bytes and packets.

The API does not currently distinguish between HW and SW stats.
The expectation is that the source of the stats will either not
matter much (good packets) or be obvious (skb alloc errors).

Acked-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Amritha Nambiar <amritha.nambiar@intel.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240306195509.1502746-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:13:25 -08:00
Eric Dumazet
ce7f49ab74 net: move rps_sock_flow_table to net_hotdata
rps_sock_flow_table and rps_cpu_mask are used in fast path.

Move them to net_hotdata for better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-19-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:43 -08:00
Eric Dumazet
490a79faf9 net: introduce include/net/rps.h
Move RPS related structures and helpers from include/linux/netdevice.h
and include/net/sock.h to a new include file.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-18-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:43 -08:00
Eric Dumazet
df51b84564 ipv6: move tcp_ipv6_hash_secret and udp_ipv6_hash_secret to net_hotdata
Use a 32bit hole in "struct net_offload" to store
the remaining 32bit secrets used by TCPv6 and UDPv6.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-17-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:43 -08:00
Eric Dumazet
5af674bb90 ipv6: move inet6_ehash_secret and udp6_ehash_secret into net_hotdata
"struct inet6_protocol" has a 32bit hole in 32bit arches.

Use it to store the 32bit secret used by UDP and TCP,
to increase cache locality in rx path.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-16-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:43 -08:00
Eric Dumazet
6e0735723a inet: move inet_ehash_secret and udp_ehash_secret into net_hotdata
"struct net_protocol" has a 32bit hole in 32bit arches.

Use it to store the 32bit secret used by UDP and TCP,
to increase cache locality in rx path.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-15-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:43 -08:00
Eric Dumazet
571bf020be inet: move tcp_protocol and udp_protocol to net_hotdata
These structures are read in rx path, move them to net_hotdata
for better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-14-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:43 -08:00
Eric Dumazet
4ea0875b9d ipv6: move tcpv6_protocol and udpv6_protocol to net_hotdata
These structures are read in rx path, move them to net_hotdata
for better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-13-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:43 -08:00
Eric Dumazet
6a55ca6b01 udp: move udpv4_offload and udpv6_offload to net_hotdata
These structures are used in GRO and GSO paths.
Move them to net_hodata for better cache locality.

v2: udpv6_offload definition depends on CONFIG_INET=y

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-12-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:43 -08:00
Eric Dumazet
aa70d2d16f net: move skbuff_cache(s) to net_hotdata
skbuff_cache, skbuff_fclone_cache and skb_small_head_cache
are used in rx/tx fast paths.

Move them to net_hotdata for better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-11-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:42 -08:00
Eric Dumazet
71c0de9bac net: move dev_rx_weight to net_hotdata
dev_rx_weight is read from process_backlog().

Move it to net_hotdata for better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-10-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:42 -08:00
Eric Dumazet
26722dc74b net: move dev_tx_weight to net_hotdata
dev_tx_weight is used in tx fast path.

Move it to net_hotdata for better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-9-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:42 -08:00
Eric Dumazet
0139806eeb net: move tcpv4_offload and tcpv6_offload to net_hotdata
These are used in TCP fast paths.

Move them into net_hotdata for better cache locality.

v2: tcpv6_offload definition depends on CONFIG_INET

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-8-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:42 -08:00
Eric Dumazet
61a0be1a53 net: move ip_packet_offload and ipv6_packet_offload to net_hotdata
These structures are used in GRO and GSO paths.

v2: ipv6_packet_offload definition depends on CONFIG_INET

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-7-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:42 -08:00
Eric Dumazet
edbc666cdc net: move netdev_max_backlog to net_hotdata
netdev_max_backlog is used in rx fat path.

Move it to net_hodata for better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-6-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:42 -08:00
Eric Dumazet
0b91fa4bfb net: move ptype_all into net_hotdata
ptype_all is used in rx/tx fast paths.

Move it to net_hotdata for better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-5-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:41 -08:00
Eric Dumazet
f59b5416c3 net: move netdev_tstamp_prequeue into net_hotdata
netdev_tstamp_prequeue is used in rx path.

Move it to net_hotdata for better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:41 -08:00
Eric Dumazet
ae6e22f7b7 net: move netdev_budget and netdev_budget to net_hotdata
netdev_budget and netdev_budget are used in rx path (net_rx_action())

Move them into net_hotdata for better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:41 -08:00
Eric Dumazet
2658b5a8a4 net: introduce struct net_hotdata
Instead of spreading networking critical fields
all over the places, add a custom net_hotdata
structure so that we can precisely control its layout.

In this first patch, move :

- gro_normal_batch used in rx (GRO stack)
- offload_base used in rx and tx (GRO and TSO stacks)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 21:12:41 -08:00
Jakub Kicinski
e3afe5dd3a Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

No conflicts.

Adjacent changes:

net/core/page_pool_user.c
  0b11b1c5c3 ("netdev: let netlink core handle -EMSGSIZE errors")
  429679dcf7 ("page_pool: fix netlink dump stop/resume")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-07 10:29:36 -08:00
Luiz Augusto von Dentz
42ed95de82 Bluetooth: ISO: Align broadcast sync_timeout with connection timeout
This aligns broadcast sync_timeout with existing connection timeouts
which are 20 seconds long.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-07 11:58:17 -05:00
Vinicius Peixoto
48201a3b3f Bluetooth: Add new quirk for broken read key length on ATS2851
The ATS2851 controller erroneously reports support for the "Read
Encryption Key Length" HCI command. This makes it unable to connect
to any devices, since this command is issued by the kernel during the
connection process in response to an "Encryption Change" HCI event.

Add a new quirk (HCI_QUIRK_BROKEN_ENC_KEY_SIZE) to hint that the command
is unsupported, preventing it from interrupting the connection process.

This is the error log from btmon before this patch:

> HCI Event: Encryption Change (0x08) plen 4
        Status: Success (0x00)
        Handle: 2048 Address: ...
        Encryption: Enabled with E0 (0x01)
< HCI Command: Read Encryption Key Size (0x05|0x0008) plen 2
        Handle: 2048 Address: ...
> HCI Event: Command Status (0x0f) plen 4
      Read Encryption Key Size (0x05|0x0008) ncmd 1
        Status: Unknown HCI Command (0x01)

Signed-off-by: Vinicius Peixoto <nukelet64@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:27:14 -05:00
Luiz Augusto von Dentz
2615fd9a7c Bluetooth: hci_sync: Fix overwriting request callback
In a few cases the stack may generate commands as responses to events
which would happen to overwrite the sent_cmd, so this attempts to store
the request in req_skb so even if sent_cmd is replaced with a new
command the pending request will remain in stored in req_skb.

Fixes: 6a98e3836f ("Bluetooth: Add helper for serialized HCI command execution")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:26:20 -05:00
Iulia Tanasescu
168d9bf9c7 Bluetooth: ISO: Reassemble PA data for bcast sink
This adds support to reassemble PA data for a Broadcast Sink
listening socket. This is needed in case the BASE is received
fragmented in multiple PA reports.

PA data is first reassembled inside the hcon, before the BASE
is extracted and stored inside the socket. The length of the
le_per_adv_data hcon array has been raised to 1650, to accommodate
the maximum PA data length that can come fragmented, according to
spec.

Signed-off-by: Iulia Tanasescu <iulia.tanasescu@nxp.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:26:19 -05:00
Iulia Tanasescu
02171da6e8 Bluetooth: ISO: Add hcon for listening bis sk
This creates a hcon instance at bis listen, before the PA sync
procedure is started.

Signed-off-by: Iulia Tanasescu <iulia.tanasescu@nxp.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:26:18 -05:00
Luiz Augusto von Dentz
881559af5f Bluetooth: hci_sync: Attempt to dequeue connection attempt
If connection is still queued/pending in the cmd_sync queue it means no
command has been generated and it should be safe to just dequeue the
callback when it is being aborted.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:24:06 -05:00
Luiz Augusto von Dentz
505ea2b295 Bluetooth: hci_sync: Add helper functions to manipulate cmd_sync queue
This adds functions to queue, dequeue and lookup into the cmd_sync
list.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:24:05 -05:00
Luiz Augusto von Dentz
5f641f03ab Bluetooth: hci_conn: Fix UAF Write in __hci_acl_create_connection_sync
This fixes the UAF on __hci_acl_create_connection_sync caused by
connection abortion, it uses the same logic as to LE_LINK which uses
hci_cmd_sync_cancel to prevent the callback to run if the connection is
abort prematurely.

Reported-by: syzbot+3f0a39be7a2035700868@syzkaller.appspotmail.com
Fixes: 45340097ce ("Bluetooth: hci_conn: Only do ACL connections sequentially")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:23:52 -05:00
Luiz Augusto von Dentz
bf98feea5b Bluetooth: hci_conn: Always use sk_timeo as conn_timeout
This aligns the use socket sk_timeo as conn_timeout when initiating a
connection and then use it when scheduling the resulting HCI command,
that way the command is actually aborted synchronously thus not
blocking commands generated by hci_abort_conn_sync to inform the
controller the connection is to be aborted.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:22:41 -05:00
Jonas Dreßler
4aa42119d9 Bluetooth: Remove pending ACL connection attempts
With the last commit we moved to using the hci_sync queue for "Create
Connection" requests, removing the need for retrying the paging after
finished/failed "Create Connection" requests and after the end of
inquiries.

hci_conn_check_pending() was used to trigger this retry, we can remove it
now.

Note that we can also remove the special handling for COMMAND_DISALLOWED
errors in the completion handler of "Create Connection", because "Create
Connection" requests are now always serialized.

This is somewhat reverting commit 4c67bc74f0 ("[Bluetooth] Support
concurrent connect requests").

With this, the BT_CONNECT2 state of ACL hci_conn objects should now be
back to meaning only one thing: That we received a "Connection Request"
from another device (see hci_conn_request_evt), but the response to that
is going to be deferred.

Signed-off-by: Jonas Dreßler <verdre@v0yd.nl>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:22:40 -05:00
Jonas Dreßler
45340097ce Bluetooth: hci_conn: Only do ACL connections sequentially
Pretty much all bluetooth chipsets only support paging a single device at
a time, and if they don't reject a secondary "Create Connection" request
while another is still ongoing, they'll most likely serialize those
requests in the firware.

With commit 4c67bc74f0 ("[Bluetooth] Support concurrent connect
requests") we started adding some serialization of our own in case the
adapter returns "Command Disallowed" HCI error.

This commit was using the BT_CONNECT2 state for the serialization, this
state is also used for a few more things (most notably to indicate we're
waiting for an inquiry to cancel) and therefore a bit unreliable. Also
not all BT firwares would respond with "Command Disallowed" on too many
connection requests, some will also respond with "Hardware Failure"
(BCM4378), and others will error out later and send a "Connect Complete"
event with error "Rejected Limited Resources" (Marvell 88W8897).

We can clean things up a bit and also make the serialization more reliable
by using our hci_sync machinery to always do "Create Connection" requests
in a sequential manner.

This is very similar to what we're already doing for establishing LE
connections, and it works well there.

Note that this causes a test failure in mgmt-tester (test "Pair Device
- Power off 1") because the hci_abort_conn_sync() changes the error we
return on timeout of the "Create Connection". We'll fix this on the
mgmt-tester side by adjusting the expected error for the test.

Signed-off-by: Jonas Dreßler <verdre@v0yd.nl>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:22:40 -05:00
Luiz Augusto von Dentz
e7b02296fb Bluetooth: Remove BT_HS
High Speed, Alternate MAC and PHY (AMP) extension, has been removed from
Bluetooth Core specification on 5.3:

https://www.bluetooth.com/blog/new-core-specification-v5-3-feature-enhancements/

Fixes: 244bc37759 ("Bluetooth: Add BT_HS config option")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:22:39 -05:00
Luiz Augusto von Dentz
63298d6e75 Bluetooth: hci_core: Cancel request on command timeout
If command has timed out call __hci_cmd_sync_cancel to notify the
hci_req since it will inevitably cause a timeout.

This also rework the code around __hci_cmd_sync_cancel since it was
wrongly assuming it needs to cancel timer as well, but sometimes the
timers have not been started or in fact they already had timed out in
which case they don't need to be cancel yet again.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:22:38 -05:00
Jonas Dreßler
79c0868ad6 Bluetooth: hci_event: Use HCI error defines instead of magic values
We have error defines already, so let's use them.

Signed-off-by: Jonas Dreßler <verdre@v0yd.nl>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:22:38 -05:00
Jonas Dreßler
b14202aff5 Bluetooth: Add new state HCI_POWERING_DOWN
Add a new state HCI_POWERING_DOWN that indicates that the device is
currently powering down, this will be useful for the next commit.

Signed-off-by: Jonas Dreßler <verdre@v0yd.nl>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:22:37 -05:00
Jonas Dreßler
968667f2e0 Bluetooth: Remove HCI_POWER_OFF_TIMEOUT
With commit cf75ad8b41 ("Bluetooth: hci_sync: Convert MGMT_SET_POWERED"),
the power off sequence got refactored so that this timeout was no longer
necessary, let's remove the leftover define from the header too.

Fixes: cf75ad8b41 ("Bluetooth: hci_sync: Convert MGMT_SET_POWERED")
Signed-off-by: Jonas Dreßler <verdre@v0yd.nl>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-03-06 17:22:36 -05:00
Fedor Pchelkin
e8a1e58345 mac802154: fix llsec key resources release in mac802154_llsec_key_del
mac802154_llsec_key_del() can free resources of a key directly without
following the RCU rules for waiting before the end of a grace period. This
may lead to use-after-free in case llsec_lookup_key() is traversing the
list of keys in parallel with a key deletion:

refcount_t: addition on 0; use-after-free.
WARNING: CPU: 4 PID: 16000 at lib/refcount.c:25 refcount_warn_saturate+0x162/0x2a0
Modules linked in:
CPU: 4 PID: 16000 Comm: wpan-ping Not tainted 6.7.0 #19
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:refcount_warn_saturate+0x162/0x2a0
Call Trace:
 <TASK>
 llsec_lookup_key.isra.0+0x890/0x9e0
 mac802154_llsec_encrypt+0x30c/0x9c0
 ieee802154_subif_start_xmit+0x24/0x1e0
 dev_hard_start_xmit+0x13e/0x690
 sch_direct_xmit+0x2ae/0xbc0
 __dev_queue_xmit+0x11dd/0x3c20
 dgram_sendmsg+0x90b/0xd60
 __sys_sendto+0x466/0x4c0
 __x64_sys_sendto+0xe0/0x1c0
 do_syscall_64+0x45/0xf0
 entry_SYSCALL_64_after_hwframe+0x6e/0x76

Also, ieee802154_llsec_key_entry structures are not freed by
mac802154_llsec_key_del():

unreferenced object 0xffff8880613b6980 (size 64):
  comm "iwpan", pid 2176, jiffies 4294761134 (age 60.475s)
  hex dump (first 32 bytes):
    78 0d 8f 18 80 88 ff ff 22 01 00 00 00 00 ad de  x.......".......
    00 00 00 00 00 00 00 00 03 00 cd ab 00 00 00 00  ................
  backtrace:
    [<ffffffff81dcfa62>] __kmem_cache_alloc_node+0x1e2/0x2d0
    [<ffffffff81c43865>] kmalloc_trace+0x25/0xc0
    [<ffffffff88968b09>] mac802154_llsec_key_add+0xac9/0xcf0
    [<ffffffff8896e41a>] ieee802154_add_llsec_key+0x5a/0x80
    [<ffffffff8892adc6>] nl802154_add_llsec_key+0x426/0x5b0
    [<ffffffff86ff293e>] genl_family_rcv_msg_doit+0x1fe/0x2f0
    [<ffffffff86ff46d1>] genl_rcv_msg+0x531/0x7d0
    [<ffffffff86fee7a9>] netlink_rcv_skb+0x169/0x440
    [<ffffffff86ff1d88>] genl_rcv+0x28/0x40
    [<ffffffff86fec15c>] netlink_unicast+0x53c/0x820
    [<ffffffff86fecd8b>] netlink_sendmsg+0x93b/0xe60
    [<ffffffff86b91b35>] ____sys_sendmsg+0xac5/0xca0
    [<ffffffff86b9c3dd>] ___sys_sendmsg+0x11d/0x1c0
    [<ffffffff86b9c65a>] __sys_sendmsg+0xfa/0x1d0
    [<ffffffff88eadbf5>] do_syscall_64+0x45/0xf0
    [<ffffffff890000ea>] entry_SYSCALL_64_after_hwframe+0x6e/0x76

Handle the proper resource release in the RCU callback function
mac802154_llsec_key_del_rcu().

Note that if llsec_lookup_key() finds a key, it gets a refcount via
llsec_key_get() and locally copies key id from key_entry (which is a
list element). So it's safe to call llsec_key_put() and free the list
entry after the RCU grace period elapses.

Found by Linux Verification Center (linuxtesting.org).

Fixes: 5d637d5aab ("mac802154: add llsec structures and mutators")
Cc: stable@vger.kernel.org
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Acked-by: Alexander Aring <aahringo@redhat.com>
Message-ID: <20240228163840.6667-1-pchelkin@ispras.ru>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
2024-03-06 21:01:26 +01:00
Juntong Deng
eeb78df406 inet: Add getsockopt support for IP_ROUTER_ALERT and IPV6_ROUTER_ALERT
Currently getsockopt does not support IP_ROUTER_ALERT and
IPV6_ROUTER_ALERT, and we are unable to get the values of these two
socket options through getsockopt.

This patch adds getsockopt support for IP_ROUTER_ALERT and
IPV6_ROUTER_ALERT.

Signed-off-by: Juntong Deng <juntong.deng@outlook.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-03-06 12:37:06 +00:00
Russell King
6f2fc8584a net: add helpers for EEE configuration
Add helpers that phylib and phylink can use to manage EEE configuration
and determine whether the MAC should be permitted to use LPI based on
that configuration.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20240302195306.3207716-2-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-05 19:21:17 -08:00
Ricardo B. Marliere
e556001169 nfc: core: make nfc_class constant
Since commit 43a7206b09 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the nfc_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240302-class_cleanup-net-next-v1-6-8fa378595b93@marliere.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-05 11:21:18 -08:00