Commit Graph

1108160 Commits

Author SHA1 Message Date
Jakub Kicinski
949d6b405e net: add missing includes and forward declarations under net/
This patch adds missing includes to headers under include/net.
All these problems are currently masked by the existing users
including the missing dependency before the broken header.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:53:22 +01:00
David S. Miller
735dbc69ab Merge branch 'sfc-E100-VF-respresenters'
Edward Cree says:

====================
sfc: VF representors for EF100

This series adds representor netdevices for EF100 VFs, as a step towards
 supporting TC offload and vDPA usecases in future patches.
In this first series is basic netdevice creation and packet TX; the
 following series will add the RX path.

v3: dropped massive mcdi_pcol.h patch which was applied separately.
v2: converted comments on struct efx_nic members added in patch #4 to
 kernel-doc (Jakub).  While at it, also gave struct efx_rep its own kdoc
 since several members had comments on them.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:50:07 +01:00
Edward Cree
84e7fc2591 sfc: attach/detach EF100 representors along with their owning PF
Since representors piggy-back on the PF's queues for TX, they can
 only accept new TXes while the PF is up.  Thus, any operation which
 detaches the PF must first detach all its VFreps.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:50:06 +01:00
Edward Cree
f72c38fad2 sfc: hook up ef100 representor TX
Implement .ndo_start_xmit() by calling into the parent PF's TX path.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:50:06 +01:00
Edward Cree
02443ab8c9 sfc: support passing a representor to the EF100 TX path
A non-null efv in __ef100_enqueue_skb() indicates that the packet is
 from that representor, should be transmitted with a suitable option
 descriptor (to instruct the switch to deliver it to the representee),
 and should not be accounted to the parent PF's stats or BQL.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:50:06 +01:00
Edward Cree
da56552d04 sfc: determine representee m-port for EF100 representors
An MAE port, or m-port, is a port (source/destination for traffic) on
 the Match-Action Engine (the internal switch on EF100).
Representors will use their representee's m-port for two purposes: as
 a destination override on TX from the representor, and as a source
 match in 'default rules' to steer representee traffic (when not
 matched by e.g. a TC flower rule) to representor RX via the parent
 PF's receive queue.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:50:06 +01:00
Edward Cree
e1479556f8 sfc: phys port/switch identification for ef100 reps
Requires storing VF index in struct efx_rep.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:50:06 +01:00
Edward Cree
5687eb3466 sfc: add basic ethtool ops to ef100 reps
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:50:06 +01:00
Edward Cree
08135eecd0 sfc: add skeleton ef100 VF representors
No net_device_ops yet, just a placeholder netdev created per VF.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:50:06 +01:00
Edward Cree
95287e1b4e sfc: detect ef100 MAE admin privilege/capability at probe time
One PCIe function per network port (more precisely, per m-port group) is
 responsible for configuring the Match-Action Engine which performs
 switching and packet modification in the slice to support flower/OVS
 offload.  The GRP_MAE bit in the privilege mask indicates whether a
 given function has this capability.
At probe time, call MCDIs to read the calling function's privilege mask,
 and store the GRP_MAE bit in a new ef100_nic_data member.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:50:06 +01:00
Edward Cree
8ca353da9c sfc: update EF100 register descriptions
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:50:06 +01:00
Alan Brady
16576a034c ping: support ipv6 ping socket flow labels
Ping sockets don't appear to make any attempt to preserve flow labels
created and set by userspace using IPV6_FLOWINFO_SEND. Instead they are
clobbered by autolabels (if enabled) or zero.

Grab the flowlabel out of the msghdr similar to how rawv6_sendmsg does
it and move the memset up so it doesn't get zeroed after.

Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:40:27 +01:00
Juhee Kang
c497885e30 net: marvell: prestera: use netif_is_any_bridge_port instead of open code
The open code which is netif_is_bridge_port() || netif_is_ovs_port() is
defined as a new helper function on netdev.h like netif_is_any_bridge_port
that can check both IFF flags in 1 go. So use netif_is_any_bridge_port()
function instead of open code. This patch doesn't change logic.

Signed-off-by: Juhee Kang <claudiajkang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:35:45 +01:00
Juhee Kang
59ad24714b mlxsw: use netif_is_any_bridge_port() instead of open code
The open code which is netif_is_bridge_port() || netif_is_ovs_port() is
defined as a new helper function on netdev.h like netif_is_any_bridge_port
that can check both IFF flags in 1 go. So use netif_is_any_bridge_port()
function instead of open code. This patch doesn't change logic.

Signed-off-by: Juhee Kang <claudiajkang@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22 12:35:45 +01:00
Jaehee Park
b66eb3a6e4 net: ipv6: avoid accepting values greater than 2 for accept_untracked_na
The accept_untracked_na sysctl changed from a boolean to an integer
when a new knob '2' was added. This patch provides a safeguard to avoid
accepting values that are not defined in the sysctl. When setting a
value greater than 2, the user will get an 'invalid argument' warning.

Fixes: aaa5f515b1 ("net: ipv6: new accept_untracked_na option to accept na only if in-network")
Signed-off-by: Jaehee Park <jhpark1013@gmail.com>
Suggested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Suggested-by: Roopa Prabhu <roopa@nvidia.com>
Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://lore.kernel.org/r/20220720183632.376138-1-jhpark1013@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-21 19:11:10 -07:00
Jakub Kicinski
842463f253 selftests: tls: add a test for timeo vs lock
Add a test for recv timeout. Place it in the tls_err
group, so it only runs for TLS 1.2 and 1.3 but not
for every AEAD out there.

Link: https://lore.kernel.org/r/20220720203701.2179034-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-21 18:58:11 -07:00
Jakub Kicinski
dde06aaa89 tls: rx: release the sock lock on locking timeout
Eric reports we should release the socket lock if the entire
"grab reader lock" operation has failed. The callers assume
they don't have to release it or otherwise unwind.

Reported-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot+16e72110feb2b653ef27@syzkaller.appspotmail.com
Fixes: 4cbc325ed6 ("tls: rx: allow only one reader at a time")
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220720203701.2179034-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-21 18:58:11 -07:00
Jakub Kicinski
b945804d99 linux-can-next-for-5.20-20220721
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Merge tag 'linux-can-next-for-5.20-20220721' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
can-next 2022-07-21

The patch is by Vincent Mailhol and fixes a use on an uninitialized
variable in the pch_can driver (introduced in last pull request to
net-next).

* tag 'linux-can-next-for-5.20-20220721' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next:
  can: pch_can: pch_can_error(): initialize errc before using it
====================

Link: https://lore.kernel.org/r/20220721163042.3448384-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-21 18:57:50 -07:00
Paolo Abeni
32d00f62db net: ipa: fix build
After commit 2c7b9b936b ("net: ipa: move configuration data files
into a subdirectory"), build of the ipa driver fails with the
following error:

drivers/net/ipa/data/ipa_data-v3.1.c:9:10: fatal error: gsi.h: No such file or directory

After the mentioned commit, all the file included by the configuration
are in the parent directory. Fix the issue updating the include path.

Fixes: 2c7b9b936b ("net: ipa: move configuration data files into a subdirectory")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/7105112c38cfe0642a2d9e1779bf784a7aa63d16.1658411666.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-21 16:53:26 -07:00
Jakub Kicinski
6e0e846ee2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-21 13:03:39 -07:00
Linus Torvalds
7ca433dc6d Networking fixes for 5.19-rc8, including fixes from can.
Previous releases - regressions:
   - tcp/udp: make early_demux back namespacified.
 
   - dsa: fix issues with vlan_filtering_is_global
 
 Previous releases - always broken:
   - ip: fix data-races around ipv4_net_table (round 2, 3 & 4)
 
   - amt: fix validation and synchronization bugs
 
   - can: fix detection of mcp251863
 
   - eth: iavf: fix handling of dummy receive descriptors
 
   - eth: lan966x: fix issues with MAC table
 
   - eth: stmmac: dwmac-mediatek: fix clock issue
 
 Misc:
   - dsa: update documentation
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from can.

  Still no major regressions, most of the changes are still due to data
  races fixes, plus the usual bunch of drivers fixes.

  Previous releases - regressions:

   - tcp/udp: make early_demux back namespacified.

   - dsa: fix issues with vlan_filtering_is_global

  Previous releases - always broken:

   - ip: fix data-races around ipv4_net_table (round 2, 3 & 4)

   - amt: fix validation and synchronization bugs

   - can: fix detection of mcp251863

   - eth: iavf: fix handling of dummy receive descriptors

   - eth: lan966x: fix issues with MAC table

   - eth: stmmac: dwmac-mediatek: fix clock issue

  Misc:

   - dsa: update documentation"

* tag 'net-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (107 commits)
  mlxsw: spectrum_router: Fix IPv4 nexthop gateway indication
  net/sched: cls_api: Fix flow action initialization
  tcp: Fix data-races around sysctl_tcp_max_reordering.
  tcp: Fix a data-race around sysctl_tcp_abort_on_overflow.
  tcp: Fix a data-race around sysctl_tcp_rfc1337.
  tcp: Fix a data-race around sysctl_tcp_stdurg.
  tcp: Fix a data-race around sysctl_tcp_retrans_collapse.
  tcp: Fix data-races around sysctl_tcp_slow_start_after_idle.
  tcp: Fix a data-race around sysctl_tcp_thin_linear_timeouts.
  tcp: Fix data-races around sysctl_tcp_recovery.
  tcp: Fix a data-race around sysctl_tcp_early_retrans.
  tcp: Fix data-races around sysctl knobs related to SYN option.
  udp: Fix a data-race around sysctl_udp_l3mdev_accept.
  ip: Fix data-races around sysctl_ip_prot_sock.
  ipv4: Fix data-races around sysctl_fib_multipath_hash_fields.
  ipv4: Fix data-races around sysctl_fib_multipath_hash_policy.
  ipv4: Fix a data-race around sysctl_fib_multipath_use_neigh.
  can: rcar_canfd: Add missing of_node_put() in rcar_canfd_probe()
  can: mcp251xfd: fix detection of mcp251863
  Documentation: fix udp_wmem_min in ip-sysctl.rst
  ...
2022-07-21 11:08:35 -07:00
Peter Zijlstra
b67fbebd4c mmu_gather: Force tlb-flush VM_PFNMAP vmas
Jann reported a race between munmap() and unmap_mapping_range(), where
unmap_mapping_range() will no-op once unmap_vmas() has unlinked the
VMA; however munmap() will not yet have invalidated the TLBs.

Therefore unmap_mapping_range() will complete while there are still
(stale) TLB entries for the specified range.

Mitigate this by force flushing TLBs for VM_PFNMAP ranges.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21 10:50:13 -07:00
Peter Zijlstra
18ba064e42 mmu_gather: Let there be one tlb_{start,end}_vma() implementation
Now that architectures are no longer allowed to override
tlb_{start,end}_vma() re-arrange code so that there is only one
implementation for each of these functions.

This much simplifies trying to figure out what they actually do.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21 10:50:13 -07:00
Peter Zijlstra
1d7708e75c csky/tlb: Remove tlb_flush() define
The previous patch removed the tlb_flush_end() implementation which
used tlb_flush_range(). This means:

 - csky did double invalidates, a range invalidate per vma and a full
   invalidate at the end

 - csky actually has range invalidates and as such the generic
   tlb_flush implementation is more efficient for it.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Tested-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21 10:50:13 -07:00
Peter Zijlstra
1e9fdf21a4 mmu_gather: Remove per arch tlb_{start,end}_vma()
Scattered across the archs are 3 basic forms of tlb_{start,end}_vma().
Provide two new MMU_GATHER_knobs to enumerate them and remove the per
arch tlb_{start,end}_vma() implementations.

 - MMU_GATHER_NO_FLUSH_CACHE indicates the arch has flush_cache_range()
   but does *NOT* want to call it for each VMA.

 - MMU_GATHER_MERGE_VMAS indicates the arch wants to merge the
   invalidate across multiple VMAs if possible.

With these it is possible to capture the three forms:

  1) empty stubs;
     select MMU_GATHER_NO_FLUSH_CACHE and MMU_GATHER_MERGE_VMAS

  2) start: flush_cache_range(), end: empty;
     select MMU_GATHER_MERGE_VMAS

  3) start: flush_cache_range(), end: flush_tlb_range();
     default

Obviously, if the architecture does not have flush_cache_range() then
it also doesn't need to select MMU_GATHER_NO_FLUSH_CACHE.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21 10:50:13 -07:00
Khalid Masum
23a67619bc scripts/gdb: Fix gdb 'lx-symbols' command
Currently the command 'lx-symbols' in gdb exits with the error`Function
"do_init_module" not defined in "kernel/module.c"`. This occurs because
the file kernel/module.c was moved to kernel/module/main.c.

Fix this breakage by changing the path to "kernel/module/main.c" in
LoadModuleBreakpoint.

Signed-off-by: Khalid Masum <khalid.masum.92@gmail.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Fixes: cfc1d27789 ("module: Move all into module/")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21 10:40:55 -07:00
Linus Torvalds
44e29e64cf watch-queue: remove spurious double semicolon
Sedat Dilek noticed that I had an extraneous semicolon at the end of a
line in the previous patch.

It's harmless, but unintentional, and while compilers just treat it as
an extra empty statement, for all I know some other tooling might warn
about it. So clean it up before other people notice too ;)

Fixes: 353f7988dd ("watchqueue: make sure to serialize 'wqueue->defunct' properly")
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
2022-07-21 10:30:14 -07:00
Vincent Mailhol
9950f11211 can: pch_can: pch_can_error(): initialize errc before using it
After commit 3a5c7e4611, the variable errc is accessed before being
initialized, c.f. below W=2 warning:

| In function 'pch_can_error',
|     inlined from 'pch_can_poll' at drivers/net/can/pch_can.c:739:4:
| drivers/net/can/pch_can.c:501:29: warning: 'errc' may be used uninitialized [-Wmaybe-uninitialized]
|   501 |                 cf->data[6] = errc & PCH_TEC;
|       |                             ^
| drivers/net/can/pch_can.c: In function 'pch_can_poll':
| drivers/net/can/pch_can.c:484:13: note: 'errc' was declared here
|   484 |         u32 errc, lec;
|       |             ^~~~

Moving errc initialization up solves this issue.

Fixes: 3a5c7e4611 ("can: pch_can: do not report txerr and rxerr during bus-off")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/all/20220721160032.9348-1-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-21 18:19:01 +02:00
Łukasz Spintzyk
5588d62802 net/cdc_ncm: Increase NTB max RX/TX values to 64kb
DisplayLink ethernet devices require NTB buffers larger then 32kb
in order to run with highest performance.

This patch is changing upper limit of the rx and tx buffers.
Those buffers are initialized with CDC_NCM_NTB_DEF_SIZE_RX and
CDC_NCM_NTB_DEF_SIZE_TX which is 16kb so by default no device is
affected by increased limit.

Rx and tx buffer is increased under two conditions:
 - Device need to advertise that it supports higher buffer size in
   dwNtbMaxInMaxSize and dwNtbMaxOutMaxSize.
 - cdc_ncm/rx_max and cdc_ncm/tx_max driver parameters must be adjusted
   with udev rule or ethtool.

Summary of testing and performance results:
Tests were performed on following devices:
 - DisplayLink DL-3xxx family device
 - DisplayLink DL-6xxx family device
 - ASUS USB-C2500 2.5G USB3 ethernet adapter
 - Plugable USB3 1G USB3 ethernet adapter
 - EDIMAX EU-4307 USB-C ethernet adapter
 - Dell DBQBCBC064 USB-C ethernet adapter

Performance measurements were done with:
 - iperf3 between two linux boxes
 - http://openspeedtest.com/ instance running on local test machine

Insights from tests results:
 - All except one from third party usb adapters were not affected by
   increased buffer size to their advertised dwNtbOutMaxSize and
   dwNtbInMaxSize.
   Devices were generally reaching 912-940Mbps both download and upload.

   Only EDIMAX adapter experienced decreased download size from
   929Mbps to 827Mbps with iper3, with openspeedtest decrease was from
   968Mbps to 886Mbps.

 - DisplayLink DL-3xxx family devices experienced performance increase
   with iperf3 download from 300Mbps to 870Mbps and
   upload from 782Mbps to 844Mbps.
   With openspeedtest download increased from 556Mbps to 873Mbps
   and upload from 727Mbps to 973Mbps

 - DiplayLink DL-6xxx family devices are not affected by
   increased buffer size.

Signed-off-by: Łukasz Spintzyk <lukasz.spintzyk@synaptics.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220720060518.541-2-lukasz.spintzyk@synaptics.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-21 13:20:28 +02:00
Dominik Czerwik
266c0190ae net/cdc_ncm: Enable ZLP for DisplayLink ethernet devices
This improves performance and stability of
DL-3xxx/DL-5xxx/DL-6xxx device series.

Specifically prevents device from temporary network dropouts when
playing video from the web and network traffic going through is high.

Signed-off-by: Dominik Czerwik <dominik.czerwik@synaptics.com>
Signed-off-by: Łukasz Spintzyk <lukasz.spintzyk@synaptics.com>
Link: https://lore.kernel.org/r/20220720060518.541-1-lukasz.spintzyk@synaptics.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-21 13:20:28 +02:00
Jakub Kicinski
bf2200e849 Merge branch 'net-ipa-move-configuration-data-files'
Alex Elder says:

====================
net: ipa: move configuration data files

This series moves the "ipa_data-vX.Y.c" files into a subdirectory.
The first patch adds a Makefile variable containing the list of
supported IPA versions, and uses it to simplify the way these files
are specified.
====================

Link: https://lore.kernel.org/r/20220719150827.295248-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 21:05:45 -07:00
Alex Elder
2c7b9b936b net: ipa: move configuration data files into a subdirectory
Reduce the clutter in the main IPA source directory by creating a
new "data" subdirectory, and locating all of the configuration data
files in there.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 21:05:41 -07:00
Alex Elder
ec2ea5e06c net: ipa: list supported IPA versions in the Makefile
Create a variable in the Makefile listing the IPA versions supported
by the driver.  Use that to create the list of configuration data
object files used (rather than listing them all individually).

Add a SPDX license comment.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 21:05:41 -07:00
Jakub Kicinski
4ab6e359f8 Merge branch 'net-ipa-small-transaction-updates'
Alex Elder says:

====================
net: ipa: small transaction updates

Version 2 of this series corrects a misspelling of "outstanding"
pointed out by the netdev test bots.  (For some reason I don't see
that when I run "checkpatch".)  I found and fixed a second instance
of that word being misspelled as well.

This series includes three changes to the transaction code.  The
first adds a new transaction list that represents a distinct state
that has not been maintained.  The second moves a field in the
transaction information structure, and reorders its initialization
a bit.  The third skips a function call when it is known not to be
necessary.

The last two are very small "leftover" patches.
====================

Link: https://lore.kernel.org/r/20220719181020.372697-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 21:05:08 -07:00
Alex Elder
616c4a83b6 net: ipa: fix an outdated comment
Since commit 8797972aff ("net: ipa: remove command info pool"),
we don't allocate "command info" entries for command channel
transactions.  Fix a comment that seems to suggest we still do.
(Even before that commit, the comment was out of place.)

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 21:04:36 -07:00
Alex Elder
3c91c86d1b net: ipa: report when the driver has been removed
When the IPA driver has completed its initialization and setup
stages, it emits a brief message to the log.  Add a small message
that reports when it has been removed.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 21:04:36 -07:00
Alex Elder
4d8996cbee net: ipa: skip some cleanup for unused transactions
In gsi_trans_free(), there's no point in ipa_gsi_trans_release() if
a transaction is unused.  No used TREs means no IPA layer resources
to clean up.  So only call ipa_gsi_trans_release() if at least one
TRE was used.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 21:04:36 -07:00
Alex Elder
4920065888 net: ipa: rearrange transaction initialization
The transaction map is really associated with the transaction pool;
move its definition earlier in the gsi_trans_info structure.

Rearrange initialization in gsi_channel_trans_init() so it
sets the tre_avail value first, then initializes the transaction
pool, and finally allocating the transaction map.

Update comments.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 21:04:36 -07:00
Alex Elder
b63f507c06 net: ipa: add a transaction committed list
We currently put a transaction on the pending list when it has
been committed.  But until the channel's doorbell rings, these
transactions aren't actually "owned" by the hardware yet.

Add a new "committed" state (and list), to represent transactions
that have been committed but not yet sent to hardware.  Define
"pending" to mean committed transactions that have been sent
to hardware but have not yet completed.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 21:04:35 -07:00
Alex Elder
d79e4164d0 net: ipa: add an endpoint device attribute group
Create a new attribute group meant to provide a single place that
defines endpoint IDs that might be needed by user space.  Not all
defined endpoints are presented, and only those that are defined
will be made visible.

The new attributes use "extended" device attributes to hold endpoint
IDs, which is a little more compact and efficient.  Reimplement the
existing modem endpoint ID attribute files using common code.

Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20220719191639.373249-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 21:03:26 -07:00
Kuniyuki Iwashima
f12b86c0d6 selftests: net: af_unix: Fix a build error of unix_connect.c.
This patch fixes a build error reported in the link. [0]

  unix_connect.c: In function ‘unix_connect_test’:
  unix_connect.c:115:55: error: expected identifier before ‘(’ token
   #define offsetof(type, member) ((size_t)&((type *)0)->(member))
                                                       ^
  unix_connect.c:128:12: note: in expansion of macro ‘offsetof’
    addrlen = offsetof(struct sockaddr_un, sun_path) + variant->len;
              ^~~~~~~~

We can fix this by removing () around member, but checkpatch will complain
about it, and the root cause of the build failure is that I followed the
warning and fixed this in the v2 -> v3 change of the blamed commit. [1]

  CHECK: Macro argument 'member' may be better as '(member)' to avoid precedence issues
  #33: FILE: tools/testing/selftests/net/af_unix/unix_connect.c:115:
  +#define offsetof(type, member) ((size_t)&((type *)0)->member)

To avoid this warning, let's use offsetof() defined in stddef.h instead.

[0]: https://lore.kernel.org/linux-mm/202207182205.FrkMeDZT-lkp@intel.com/
[1]: https://lore.kernel.org/netdev/20220702154818.66761-1-kuniyu@amazon.com/

Fixes: e95ab1d852 ("selftests: net: af_unix: Test connect() with different netns.")
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20220720005750.16600-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 21:02:15 -07:00
Jian Shen
09765fcd3c net: amd8111e: remove repeated dev->features assignement
It's repeated with line 1793-1795, and there isn't any other
handling for it. So remove it.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Link: https://lore.kernel.org/r/20220719142424.4528-1-shenjian15@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 21:01:16 -07:00
Jakub Kicinski
602ae008ab Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
Pablo Neira Ayuso says:

====================
Netfilter/IPVS updates for net-next

The following patchset contains Netfilter/IPVS updates for net-next:

1) Simplify nf_ct_get_tuple(), from Jackie Liu.

2) Add format to request_module() call, from Bill Wendling.

3) Add /proc/net/stats/nf_flowtable to monitor in-flight pending
   hardware offload objects to be processed, from Vlad Buslov.

4) Missing rcu annotation and accessors in the netfilter tree,
   from Florian Westphal.

5) Merge h323 conntrack helper nat hooks into single object,
   also from Florian.

6) A batch of update to fix sparse warnings treewide,
   from Florian Westphal.

7) Move nft_cmp_fast_mask() where it used, from Florian.

8) Missing const in nf_nat_initialized(), from James Yonan.

9) Use bitmap API for Maglev IPVS scheduler, from Christophe Jaillet.

10) Use refcount_inc instead of _inc_not_zero in flowtable,
    from Florian Westphal.

11) Remove pr_debug in xt_TPROXY, from Nathan Cancellor.

* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
  netfilter: xt_TPROXY: remove pr_debug invocations
  netfilter: flowtable: prefer refcount_inc
  netfilter: ipvs: Use the bitmap API to allocate bitmaps
  netfilter: nf_nat: in nf_nat_initialized(), use const struct nf_conn *
  netfilter: nf_tables: move nft_cmp_fast_mask to where its used
  netfilter: nf_tables: use correct integer types
  netfilter: nf_tables: add and use BE register load-store helpers
  netfilter: nf_tables: use the correct get/put helpers
  netfilter: x_tables: use correct integer types
  netfilter: nfnetlink: add missing __be16 cast
  netfilter: nft_set_bitmap: Fix spelling mistake
  netfilter: h323: merge nat hook pointers into one
  netfilter: nf_conntrack: use rcu accessors where needed
  netfilter: nf_conntrack: add missing __rcu annotations
  netfilter: nf_flow_table: count pending offload workqueue tasks
  net/sched: act_ct: set 'net' pointer when creating new nf_flow_table
  netfilter: conntrack: use correct format characters
  netfilter: conntrack: use fallthrough to cleanup
====================

Link: https://lore.kernel.org/r/20220720230754.209053-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 18:05:51 -07:00
Jakub Kicinski
47f058ce98 mlx5-updates-2022-07-17
1) Add resiliency for lost completions for PTP TX port timestamp
 
 2) Report Header-data split state via ethtool
 
 3) Decouple HTB code from main regular TX code
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Merge tag 'mlx5-updates-2022-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2022-07-17

1) Add resiliency for lost completions for PTP TX port timestamp

2) Report Header-data split state via ethtool

3) Decouple HTB code from main regular TX code

* tag 'mlx5-updates-2022-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5: CT: Remove warning of ignore_flow_level support for non PF
  net/mlx5e: Add resiliency for PTP TX port timestamp
  net/mlx5: Expose ts_cqe_metadata_size2wqe_counter
  net/mlx5e: HTB, move htb functions to a new file
  net/mlx5e: HTB, change functions name to follow convention
  net/mlx5e: HTB, remove priv from htb function calls
  net/mlx5e: HTB, hide and dynamically allocate mlx5e_htb structure
  net/mlx5e: HTB, move stats and max_sqs to priv
  net/mlx5e: HTB, move section comment to the right place
  net/mlx5e: HTB, move ids to selq_params struct
  net/mlx5e: HTB, reduce visibility of htb functions
  net/mlx5e: Fix mqprio_rl handling on devlink reload
  net/mlx5e: Report header-data split state through ethtool
====================

Link: https://lore.kernel.org/r/20220719203529.51151-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20 17:54:46 -07:00
Justin Stitt
aa8c7cdbae netfilter: xt_TPROXY: remove pr_debug invocations
pr_debug calls are no longer needed in this file.

Pablo suggested "a patch to remove these pr_debug calls". This patch has
some other beneficial collateral as it also silences multiple Clang
-Wformat warnings that were present in the pr_debug calls.

diff from v1 -> v2:
* converted if statement one-liner style
* x == NULL is now !x

Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-07-21 00:56:00 +02:00
Florian Westphal
f02e7dc4cf netfilter: flowtable: prefer refcount_inc
With refcount_inc_not_zero, we'd also need a smp_rmb or similar,
followed by a test of the CONFIRMED bit.

However, the ct pointer is taken from skb->_nfct, its refcount must
not be 0 (else, we'd already have a use-after-free bug).

Use refcount_inc() instead to clarify the ct refcount is expected to
be at least 1.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-07-21 00:55:39 +02:00
Christophe JAILLET
5787db7c90 netfilter: ipvs: Use the bitmap API to allocate bitmaps
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>
Acked-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-07-21 00:55:39 +02:00
Linus Torvalds
353f7988dd watchqueue: make sure to serialize 'wqueue->defunct' properly
When the pipe is closed, we mark the associated watchqueue defunct by
calling watch_queue_clear().  However, while that is protected by the
watchqueue lock, new watchqueue entries aren't actually added under that
lock at all: they use the pipe->rd_wait.lock instead, and looking up
that pipe happens without any locking.

The watchqueue code uses the RCU read-side section to make sure that the
wqueue entry itself hasn't disappeared, but that does not protect the
pipe_info in any way.

So make sure to actually hold the wqueue lock when posting watch events,
properly serializing against the pipe being torn down.

Reported-by: Noam Rathaus <noamr@ssd-disclosure.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-20 10:46:07 -07:00
Eric Snowberg
543ce63b66 lockdown: Fix kexec lockdown bypass with ima policy
The lockdown LSM is primarily used in conjunction with UEFI Secure Boot.
This LSM may also be used on machines without UEFI.  It can also be
enabled when UEFI Secure Boot is disabled.  One of lockdown's features
is to prevent kexec from loading untrusted kernels.  Lockdown can be
enabled through a bootparam or after the kernel has booted through
securityfs.

If IMA appraisal is used with the "ima_appraise=log" boot param,
lockdown can be defeated with kexec on any machine when Secure Boot is
disabled or unavailable.  IMA prevents setting "ima_appraise=log" from
the boot param when Secure Boot is enabled, but this does not cover
cases where lockdown is used without Secure Boot.

To defeat lockdown, boot without Secure Boot and add ima_appraise=log to
the kernel command line; then:

  $ echo "integrity" > /sys/kernel/security/lockdown
  $ echo "appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig" > \
    /sys/kernel/security/ima/policy
  $ kexec -ls unsigned-kernel

Add a call to verify ima appraisal is set to "enforce" whenever lockdown
is enabled.  This fixes CVE-2022-21505.

Cc: stable@vger.kernel.org
Fixes: 29d3c1c8df ("kexec: Allow kexec_file() with appropriate IMA policy when locked down")
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Acked-by: Mimi Zohar <zohar@linux.ibm.com>
Reviewed-by: John Haxby <john.haxby@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-20 09:56:48 -07:00
David S. Miller
44484fa8ee linux-can-fixes-for-5.19-20220720
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Merge tag 'linux-can-fixes-for-5.19-20220720' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
this is a pull request of 2 patches for net/master.

The first patch is by me and fixes the detection of the mcp251863 in
the mcp251xfd driver.

The last patch is by Liang He and adds a missing of_node_put() in the
rcar_canfd driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20 11:13:54 +01:00