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Currently, when mailbox handling fails, the PF driver
just responds 1 to the VF driver. It is not sufficient
for the VF driver to find out why its mailbox fails.
So the error should be responded to VF, but the error
is type int and the response field in struct
hclge_mbx_pf_to_vf_cmd is type u16, a conversion is
needed.
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fixes gcc '-Wunused-but-set-variable' warning:
net/mptcp/options.c: In function 'mptcp_established_options_dss':
net/mptcp/options.c:338:7: warning:
variable 'can_ack' set but not used [-Wunused-but-set-variable]
commit dc093db5cc05 ("mptcp: drop unneeded checks")
leave behind this unused, remove it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Jian Yang says:
====================
selftests: expand txtimestamp with new features
Current txtimestamp selftest issues requests with no delay, or fixed 50
usec delay. Nsec granularity is useful to measure fine-grained latency.
A configurable delay is useful to simulate the case with cold
cachelines.
This patchset adds new flags and features to the txtimestamp selftest,
including:
- Printing in nsec (-N)
- Polling interval (-b, -S)
- Using epoll (-E, -e)
- Printing statistics
- Running individual tests in txtimestamp.sh
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Statistics on timestamps is useful to quantify average and tail latency.
Print timestamp statistics in count/avg/min/max format.
Signed-off-by: Jian Yang <jianyang@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add the following new flags:
-e: use level-triggered epoll() instead of poll().
-E: use event-triggered epoll() instead of poll().
Signed-off-by: Jian Yang <jianyang@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A longer sleep duration between sendmsg()s makes more cachelines to be
evicted and results in higher latency. Making the duration configurable.
Add the following new flags:
-S: Configurable sleep duration.
-b: Busy loop instead of poll().
Remove the following flag:
-D: No delay between packets: subsumed by -S.
Signed-off-by: Jian Yang <jianyang@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Txtimestamp reports latencies in uses resolution, while nsec is needed
in cases such as measuring latencies on localhost.
Add the following new flag:
-N: print timestamps and durations in nsec (instead of usec)
Signed-off-by: Jian Yang <jianyang@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The wrapper script txtimestamp.sh executes a pre-defined list of testcases
sequentially without configuration options available.
Add an option (-r/--run) to setup the test namespace and pass remaining
arguments to txtimestamp binary. The script still runs all tests when no
argument is passed.
Signed-off-by: Jian Yang <jianyang@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Jakub Sitnicki says:
====================
net/tls: Annotate lockless access to sk_prot
We have recently noticed that there is a case of lockless read/write to
sk->sk_prot [0]. sockmap code on psock tear-down writes to sk->sk_prot,
while holding sk_callback_lock. Concurrently, tcp can access it. Usually to
read out the sk_prot pointer and invoke one of the ops,
sk->sk_prot->handler().
The lockless write (lockless in regard to concurrent reads) happens on the
following paths:
tcp_bpf_{recvmsg|sendmsg} / sock_map_unref
sk_psock_put
sk_psock_drop
sk_psock_restore_proto
WRITE_ONCE(sk->sk_prot, proto)
To prevent load/store tearing [1], and to make tooling aware of intentional
shared access [2], we need to annotate sites that access sk_prot with
READ_ONCE/WRITE_ONCE.
This series kicks off the effort to do it. Starting with net/tls.
[0] https://lore.kernel.org/bpf/a6bf279e-a998-84ab-4371-cd6c1ccbca5d@gmail.com/
[1] https://lwn.net/Articles/793253/
[2] https://github.com/google/ktsan/wiki/READ_ONCE-and-WRITE_ONCE
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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sockmap performs lockless writes to sk->sk_prot on the following paths:
tcp_bpf_{recvmsg|sendmsg} / sock_map_unref
sk_psock_put
sk_psock_drop
sk_psock_restore_proto
WRITE_ONCE(sk->sk_prot, proto)
To prevent load/store tearing [1], and to make tooling aware of intentional
shared access [2], we need to annotate other sites that access sk_prot with
READ_ONCE/WRITE_ONCE macros.
Change done with Coccinelle with following semantic patch:
@@
expression E;
identifier I;
struct sock *sk;
identifier sk_prot =~ "^sk_prot$";
@@
(
E =
-sk->sk_prot
+READ_ONCE(sk->sk_prot)
|
-sk->sk_prot = E
+WRITE_ONCE(sk->sk_prot, E)
|
-sk->sk_prot
+READ_ONCE(sk->sk_prot)
->I
)
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Apart from being a "tremendous" win when it comes to generated machine
code (see bloat-o-meter output for x86-64 below) this mainly prepares
ground for annotating access to sk_prot with READ_ONCE, so that we don't
pepper the code with access annotations and needlessly repeat loads.
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-46 (-46)
Function old new delta
tls_init 851 805 -46
Total: Before=21063, After=21017, chg -0.22%
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The helper that builds kTLS proto ops doesn't need to and should not modify
the base proto ops. Annotate the parameter as read-only.
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Shannon Nelson says:
====================
ionic error recovery fixes
These are a few little patches to make error recovery a little
more safe and successful.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Make sure the queue structs exist before trying to tear
them down to make for safer error recovery.
Fixes: 0f3154e6bcb3 ("ionic: Add Tx and Rx handling")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a little more cleanup when tearing down the queues.
Fixes: 1d062b7b6f64 ("ionic: Add basic adminq support")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Don't worry if the rx filter add firmware request fails on
EEXIST, at least we know the filter is there. Same for
the delete request, at least we know it isn't there.
Fixes: 2a654540be10 ("ionic: Add Rx filter and rx_mode ndo support")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Don't save the lif->dentry until we know we have
a good value.
Fixes: 1a58e196467f ("ionic: Add basic lif support")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It is possible (but unlikely) that FW was busy and missed a heartbeat
check but is still alive and will process the pending request, so don't
clean the dev_cmd in this case. This occasionally occurs when working
with a card that is supporting many devices and is trying to shut them
all down at once, but still wants to see that last LIF disable request.
Fixes: 97ca486592c0 ("ionic: add heartbeat check")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Short circuit the cleanup if we get a timeout error from
ionic_qcq_disable() so as to not have to wait too long
on shutdown when we already know the FW is not responding.
Fixes: 0f3154e6bcb3 ("ionic: Add Tx and Rx handling")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Don't assume the receive buffer size is a power-of-2 number of pages.
Instead, define the receive buffer size independently, and then
compute the page order from that size when needed.
This fixes a build problem that arises when the ARM64_PAGE_SHIFT
config option is set to have a page size greater than 4KB. The
problem was identified by Linux Kernel Functional Testing.
The IPA code basically assumed the page size to be 4KB. A larger page
size caused the receive buffer size to become correspondingly larger
(32KB or 128KB for ARM64_16K_PAGES and ARM64_64K_PAGES, respectively).
The receive buffer size is used to compute an "aggregation byte limit"
value that gets programmed into the hardware, and the large page sizes
caused that limit value to be too big to fit in a 5 bit field. This
triggered a BUILD_BUG_ON() call in ipa_endpoint_validate_build().
This fix causes a lot of receive buffer memory to be wasted if
system is configured for page size greater than 4KB. But such a
misguided configuration will now build successfully.
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Export a unique board identifier using "board.id" for devlink's
.info_get command.
Obtain this by reading the NVM for the PBA identification string.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The devlink .info_get callback allows the driver to report detailed
version information. The following devlink versions are reported with
this initial implementation:
"fw.mgmt" -> The version of the firmware that controls PHY, link, etc
"fw.mgmt.api" -> API version of interface exposed over the AdminQ
"fw.mgmt.build" -> Unique build id of the source for the management fw
"fw.undi" -> Version of the Option ROM containing the UEFI driver
"fw.psid.api" -> Version of the NVM image format.
"fw.bundle_id" -> Unique identifier for the combined flash image.
"fw.app.name" -> The name of the active DDP package.
"fw.app" -> The version of the active DDP package.
With this, devlink dev info can report at least as much information as
is reported by ETHTOOL_GDRVINFO.
Compare the output from ethtool vs from devlink:
$ ethtool -i ens785s0
driver: ice
version: 0.8.1-k
firmware-version: 0.80 0x80002ec0 1.2581.0
expansion-rom-version:
bus-info: 0000:3b:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
$ devlink dev info pci/0000:3b:00.0
pci/0000:3b:00.0:
driver ice
serial number 00-01-ab-ff-ff-ca-05-68
versions:
running:
fw.mgmt 2.1.7
fw.mgmt.api 1.5
fw.mgmt.build 0x305d955f
fw.undi 1.2581.0
fw.psid.api 0.80
fw.bundle_id 0x80002ec0
fw.app.name ICE OS Default Package
fw.app 1.3.1.0
More pieces of information can be displayed, each version is kept
separate instead of munged together, and each version has an identifier
which comes with associated documentation.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The nfp driver uses ``fw.bundle_id`` to represent a unique identifier of the
entire firmware bundle.
A future change is going to introduce a similar notion in the ice
driver, so promote ``fw.bundle_id`` into a generic version now.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Begin implementing support for the devlink interface with the ice
driver.
The pf structure is currently memory managed through devres, via
a devm_alloc. To mimic this behavior, after allocating the devlink
pointer, use devm_add_action to add a teardown action for releasing the
devlink memory on exit.
The ice hardware is a multi-function PCIe device. Thus, each physical
function will get its own devlink instance. This means that each
function will be treated independently, with its own parameters and
configuration. This is done because the ice driver loads a separate
instance for each function.
Due to this, the implementation does not enable devlink to manage
device-wide resources or configuration, as each physical function will
be treated independently. This is done for simplicity, as managing
a devlink instance across multiple driver instances would significantly
increase the complexity for minimal gain.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The current implementation of .get_eeprom only enables reading from the
Shadow RAM portion of the NVM contents. Implement support for reading
the entire flash contents instead of only the initial portion contained
in the Shadow RAM.
A complete dump can take several seconds, but the ETHTOOL_GEEPROM ioctl
is capable of reading only a limited portion at a time by specifying the
offset and length to read.
In order to perform the reads directly, several functions are made non
static. Additionally, the unused ice_read_sr_buf_aq and ice_read_sr_buf
functions are removed.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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When reading from the NVM using a flat address, it is useful to know the
upper bound on the size of the flash contents. This value is not stored
within the NVM.
We can determine the size by performing a bisection between upper and
lower bounds. It is known that the size cannot exceed 16 MB (offset of
0xFFFFFF).
Use a while loop to bisect the upper and lower bounds by reading one
byte at a time. On a failed read, lower the maximum bound. On
a successful read, increase the lower bound.
Save this as the flash_size in the ice_nvm_info structure that contains
data related to the NVM.
The size will be used in a future patch for implementing full NVM read
via ethtool's GEEPROM command.
The maximum possible size for the flash is bounded by the size limit for
the NVM AdminQ commands. Add a new macro, ICE_AQC_NVM_MAX_OFFSET, which
can be used to represent this upper bound.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The NVM version and Option ROM version information is stored within the
struct ice_nvm_ver_info structure. The data for the NVM is stored as
a 2byte value with the major and minor versions each using one byte from
the field. The Option ROM is stored as a 4byte value that contains
a major, build, and patch number.
Modify the code to immediately extract the version values and store them
in a new struct ice_orom_info. Remove the now unnecessary
ice_get_nvm_version function.
Update ice_ethtool.c to use the new fields directly from the structured
data.
This reduces complexity of the code that prints these versions in
ice_ethtool.c
Update the macro definitions and variable names to use the term "orom"
instead of "oem" for the Option ROM version. This helps increase the
clarity of the Option ROM version code.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The NVM contents are read via firmware by using the ice_aq_read_nvm
function. This function has a couple of limits:
1) The AdminQ commands can only take buffers sized up to 4Kb. Thus, any
larger read must be split into multiple reads.
2) when reading from the Shadow RAM, reads must not cross sector
boundaries. The sectors are also 4Kb in size.
Implement the ice_read_flat_nvm function to read portions of the NVM by
flat offset. That is, to read using offsets from the start of the NVM
rather than from a specific module.
This function will be able to read both from the NVM and from the Shadow
RAM. For simplicity NVM reads will always be broken up to not cross 4Kb
page boundaries, even though this is not required unless reading from
the Shadow RAM.
Use this new function as the implementation of ice_read_sr_word_aq.
The ice_read_sr_buf_aq function is not modified here. This is because
a following change will remove the only caller of that function in favor
of directly using ice_read_flat_nvm. Thus, there is little benefit to
changing it now only to remove it momentarily. At the same time, the
ice_read_sr_aq function will also be removed.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The ice_read_sr_aq function returns words in the Little Endian format.
Remove the need for __force and typecasting by using a local variable in
the ice_read_sr_word_aq function.
Additionally clarify explicitly that the ice_read_sr_aq function takes
storage for __le16 values instead of using u16.
Being explicit about the endianness of this data helps when using tools
like sparse to catch endian-related issues.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
Another set of changes:
* HE ranging (fine timing measurement) API support
* hwsim gets virtio support, for use with wmediumd,
to be able to simulate with multiple machines
* eapol-over-nl80211 improvements to exclude preauth
* IBSS reset support, to recover connections from
userspace
* and various others.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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SJA1105 switches R and S have one SerDes port with an 802.3z
quasi-compatible PCS, hardwired on port 4. The other ports are still
MII/RMII/RGMII. The PCS performs rate adaptation to lower link speeds;
the MAC on this port is hardwired at gigabit. Only full duplex is
supported.
The SGMII port can be configured as part of the static config tables, as
well as through a dedicated SPI address region for its pseudo-clause-22
registers. However it looks like the static configuration is not
able to change some out-of-reset values (like the value of MII_BMCR), so
at the end of the day, having code for it is utterly pointless. We are
just going to use the pseudo-C22 interface.
Because the PCS gets reset when the switch resets, we have to add even
more restoration logic to sja1105_static_config_reload, otherwise the
SGMII port breaks after operations such as enabling PTP timestamping
which require a switch reset.
>From PHYLINK perspective, the switch supports *only* SGMII (it doesn't
support 1000Base-X). It also doesn't expose access to the raw config
word for in-band AN in registers MII_ADV/MII_LPA.
It is able to work in the following modes:
- Forced speed
- SGMII in-band AN slave (speed received from PHY)
- SGMII in-band AN master (acting as a PHY)
The latter mode is not supported by this patch. It is even unclear to me
how that would be described. There is some code for it left in the
patch, but 'an_master' is always passed as false.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Nikolay Aleksandrov says:
====================
net: bridge: vlan options: nest the tunnel options
After a discussion with Roopa about the new tunnel vlan option, she
suggested that we'll be adding more tunnel options and attributes, so
it'd be better to have them all grouped together under one main vlan
entry tunnel attribute instead of making them all main attributes. Since
the tunnel code was added in this net-next cycle and still hasn't been
released we can easily nest the BRIDGE_VLANDB_ENTRY_TUNNEL_ID attribute
in BRIDGE_VLANDB_ENTRY_TUNNEL_INFO and allow for any new tunnel
attributes to be added there. In addition one positive side-effect is
that we can remove the outside vlan info flag which controlled the
operation (setlink/dellink) and move it under a new nested attribute so
user-space can specify it explicitly.
Thus the vlan tunnel format becomes:
[BRIDGE_VLANDB_ENTRY]
[BRIDGE_VLANDB_ENTRY_TUNNEL_INFO]
[BRIDGE_VLANDB_TINFO_ID]
[BRIDGE_VLANDB_TINFO_CMD]
...
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now that we have a nested tunnel info attribute we can add a separate
one for the tunnel command and require it explicitly from user-space. It
must be one of RTM_SETLINK/DELLINK. Only RTM_SETLINK requires a valid
tunnel id, DELLINK just removes it if it was set before. This allows us
to have all tunnel attributes and control in one place, thus removing
the need for an outside vlan info flag.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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While discussing the new API, Roopa mentioned that we'll be adding more
tunnel attributes and options in the future, so it's better to make it a
nested attribute, since this is still in net-next we can easily change it
and nest the tunnel id attribute under BRIDGE_VLANDB_ENTRY_TUNNEL_INFO.
The new format is:
[BRIDGE_VLANDB_ENTRY]
[BRIDGE_VLANDB_ENTRY_TUNNEL_INFO]
[BRIDGE_VLANDB_TINFO_ID]
Any new tunnel attributes can be nested under
BRIDGE_VLANDB_ENTRY_TUNNEL_INFO.
Suggested-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some of the drivers are not using channel context, but let the
stack to control/switch channels instead. For such cases, driver
can still remain on channel because the mac80211 stack actually
supports it.
The stack will check if the driver is using chan_ctx and has
ops->remain_on_channel been hooked. Otherwise it will start its
ROC work to remain on channel. So, even if the driver is not
using chan_ctx, the driver is still capable of doing remain on
channel.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Link: https://lore.kernel.org/r/20200312074337.16198-1-yhchuang@realtek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The long if chain of interface types is hard to read,
especially now with the additional condition after it.
Use a switch statement to clarify this code.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200320113834.2c51b9e8e341.I3fa5dc3f7d3cb1dbbd77191d764586f7da993f3f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Drivers that trigger roaming need to know the lifetime of the configured
PMKSA for deciding whether to trigger the full or PMKSA cache based
authentication. The configured PMKSA is invalid after the PMK lifetime
has expired and must not be used after that and the STA needs to
disassociate if the PMK expires. Hence the STA is expected to refresh
the PMK with a full authentication before this happens (e.g., when
reassociating to a new BSS the next time or by performing EAPOL
reauthentication depending on the AKM) to avoid unnecessary
disconnection.
The PMK reauthentication threshold is the percentage of the PMK lifetime
value and indicates to the driver to trigger a full authentication roam
(without PMKSA caching) after the reauthentication threshold time, but
before the PMK timer has expired. Authentication methods like SAE need
to be able to generate a new PMKSA entry without having to force a
disconnection after this threshold timeout. If no roaming occurs between
the reauthentication threshold time and PMK lifetime expiration,
disassociation is still forced.
The new attributes for providing these values correspond to the dot11
MIB variables dot11RSNAConfigPMKLifetime and
dot11RSNAConfigPMKReauthThreshold.
This type of functionality is already available in cases where user
space component is in control of roaming. This commit extends that same
capability into cases where parts or all of this functionality is
offloaded to the driver.
Signed-off-by: Veerendranath Jakkam <vjakkam@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20200312235903.18462-1-jouni@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Use perCPU pointers to get rx_stats in sta_set_sinfo
when RSS is enabled
Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
Link: https://lore.kernel.org/r/1584526555-25960-1-git-send-email-seevalam@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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->ndo_get_iflink() is useful for finding lower interface.
Test commands:
ip link add dummy0 type dummy
ip link add vw1 link dummy0 type virt_wifi
ip link show vw1
Before:
9: vw1: <BROADCAST,MULTICAST> ...
After:
9: vw1@dummy0: <BROADCAST,MULTICAST> ...
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Link: https://lore.kernel.org/r/20200305090636.28221-1-ap420073@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Set the NL80211_EXT_FEATURE_DEL_IBSS_STA if the interface support IBSS
mode, so that stations can be reset from user space.
mac80211 already deletes stations by itself, so mac80211 drivers must
already support this.
This has been successfully tested with ath9k.
Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
Link: https://lore.kernel.org/r/20200305135754.12094-2-cavallar@lri.fr
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Sometimes, userspace is able to detect that a peer silently lost its
state (like, if the peer reboots). wpa_supplicant does this for IBSS-RSN
by registering for auth/deauth frames, but when it detects this, it is
only able to remove the encryption keys of the peer and close its port.
However, the kernel also hold other state about the station, such as BA
sessions, probe response parameters and the like. They also need to be
resetted correctly.
This patch adds the NL80211_EXT_FEATURE_DEL_IBSS_STA feature flag
indicating the driver accepts deleting stations in IBSS mode, which
should send a deauth and reset the state of the station, just like in
mesh point mode.
Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
Link: https://lore.kernel.org/r/20200305135754.12094-1-cavallar@lri.fr
[preserve -EINVAL return]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We use the parsing CRC for checking if the beacon changed, and
if the WLAN_EID_EXT_HE_OPERATION extended element changes we
need to track it so we can react to that. Include it in the CRC
calculation.
Link: https://lore.kernel.org/r/20200131111300.891737-22-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add API for telling whether the driver supports protected TWT.
The protected_twt capability in the RSNXE will be based on this.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20200131111300.891737-23-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In AP mode, set htc_trig_based_pkt_ext and frame_time_rts_th
for driver use.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20200131111300.891737-19-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Pass the AP's HE operation element to the driver.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20200131111300.891737-18-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add support for requesting that the ranging measurement will use
the trigger-based / non trigger-based flow instead of the EDCA based
flow.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20200131111300.891737-2-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In beacon protection, don't leave skb->next/prev pointing to the
on-stack list, even if that's actually harmless since we don't use
them again afterwards.
While at it, check that the SKB on the list is still the same, as
that's required here. If not, the encryption (protection) code is
buggy.
Fixes: 0a3a84360b37 ("mac80211: Beacon protection using the new BIGTK (AP)")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200320102021.1be7823fc05e.Ia89fb79a0469d32137c9a04315a1d2dfc7b7d6f5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The structure member added at some point, but the kernel-doc was not
updated.
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Link: https://lore.kernel.org/r/20200312144424.3023-1-hqjagain@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This patch adds support for disabling pre-auth rx over the nl80211 control
port for mac80211.
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Link: https://lore.kernel.org/r/20200312091055.54257-3-markus.theil@tu-ilmenau.de
[fix indentation slightly, squash feature enablement]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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If the nl80211 control port is used before this patch, pre-auth frames
(0x88c7) are send to userspace uncoditionally. While this enables userspace
to only use nl80211 on the station side, it is not always useful for APs.
Furthermore, pre-auth frames are ordinary data frames and not related to
the control port. Therefore it should for example be possible for pre-auth
frames to be bridged onto a wired network on AP side without touching
userspace.
For backwards compatibility to code already using pre-auth over nl80211,
this patch adds a feature flag to disable this behavior, while it remains
enabled by default. An additional ext. feature flag is added to detect this
from userspace.
Thanks to Jouni for pointing out, that pre-auth frames should be handled as
ordinary data frames.
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Link: https://lore.kernel.org/r/20200312091055.54257-2-markus.theil@tu-ilmenau.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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