platform/kernel/linux-starfive.git
22 months agowifi: iwlwifi: calib: Refactor iwl_calib_result usage for clarity
Kees Cook [Thu, 1 Sep 2022 20:45:58 +0000 (13:45 -0700)]
wifi: iwlwifi: calib: Refactor iwl_calib_result usage for clarity

In preparation for FORTIFY_SOURCE performing run-time destination buffer
bounds checking for memcpy(), refactor the use of struct iwl_calib_result:

- Have struct iwl_calib_result contain struct iwl_calib_cmd since
  functions expect to operate on the "data" flex array in "cmd", which
  follows the "hdr" member.
- Switch argument passing around to use struct iwl_calib_cmd instead of
  struct iwl_calib_hdr to prepare functions to see the "data" member.
- Change iwl_calib_set()'s "len" argument to a size_t since it is always
  unsigned and is normally receiving the output of sizeof().
- Add an explicit length sanity check in iwl_calib_set().
- Adjust the memcpy() to avoid copying across the now visible composite
  flex array structure.

This avoids the future run-time warning:

  memcpy: detected field-spanning write (size 8) of single field "&res->hdr" (size 4)

Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Reported-by: Andy Lavr <andy.lavr@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220901204558.2256458-1-keescook@chromium.org
22 months agowifi: rsi: fix kernel-doc warning
Johannes Berg [Tue, 6 Sep 2022 08:33:44 +0000 (10:33 +0200)]
wifi: rsi: fix kernel-doc warning

One of my previous patches here changed the function prototype,
but since it was (half?) automated, I didn't update the docs.
Fix that now.

Fixes: b3e2130bf5f6 ("wifi: mac80211: change QoS settings API to take link into account")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211_hwsim: always activate all links
Johannes Berg [Fri, 2 Sep 2022 14:12:57 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: always activate all links

By default, even in client mode, hwsim always had all links
active, where it then uses them in a round-robin fashion.
Re-enable that by activating all valid links work right after
the connection is authorized.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: implement link switching
Johannes Berg [Fri, 2 Sep 2022 14:12:56 +0000 (16:12 +0200)]
wifi: mac80211: implement link switching

Implement an API function and debugfs file to switch
active links.

Also provide an async version of the API so drivers
can call it in arbitrary contexts, e.g. while in the
authorized callback.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: keep A-MSDU data in sta and per-link
Benjamin Berg [Fri, 2 Sep 2022 14:12:54 +0000 (16:12 +0200)]
wifi: mac80211: keep A-MSDU data in sta and per-link

The A-MSDU data needs to be stored per-link and aggregated into a single
value for the station. Add a new struct ieee_80211_sta_aggregates in
order to store this data and a new function
ieee80211_sta_recalc_aggregates to update the current data for the STA.

Note that in the non MLO case the pointer in ieee80211_sta will directly
reference the data in deflink.agg, which means that recalculation may be
skipped in that case.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: set up beacon timing config on links
Johannes Berg [Fri, 2 Sep 2022 14:12:53 +0000 (16:12 +0200)]
wifi: mac80211: set up beacon timing config on links

On secondary MLO links, I forgot to set the beacon interval
and DTIM period, fix that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: add vif/sta link RCU dereference macros
Johannes Berg [Fri, 2 Sep 2022 14:12:52 +0000 (16:12 +0200)]
wifi: mac80211: add vif/sta link RCU dereference macros

Add macros (and an exported function) to allow checking some
link RCU protected accesses that are happening in callbacks
from mac80211 and are thus under the correct lock.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211_hwsim: send NDP for link (de)activation
Johannes Berg [Fri, 2 Sep 2022 14:12:48 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: send NDP for link (de)activation

In hwsim we now track when we receive NDP (or other frames
carrying a PM bit) to see if a link should be active, but
then of course we also need to transmit NDPs to at least
set a link to inactive when we deacivate it. Implement that
as well as sending an NDP when we activate a link, which
allows receiving frames before transmitting any.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: extend ieee80211_nullfunc_get() for MLO
Johannes Berg [Fri, 2 Sep 2022 14:12:47 +0000 (16:12 +0200)]
wifi: mac80211: extend ieee80211_nullfunc_get() for MLO

Add a link_id parameter to ieee80211_nullfunc_get() to be
able to obtain a correctly addressed frame.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211_hwsim: track active STA links
Johannes Berg [Fri, 2 Sep 2022 14:12:45 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: track active STA links

Track the powersave bit on frames where we can look up
the STA by link addresses and set the links active or
inactive accordingly, and use this information to TX
only on links that are actually active in the peer.

Note that this doesn't implement powersave fully so
if no link is active things will not work right.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211_hwsim: skip inactive links on TX
Johannes Berg [Fri, 2 Sep 2022 14:12:44 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: skip inactive links on TX

With the link activation handling in mac80211, skip
any inactive links on TX.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: add ieee80211_find_sta_by_link_addrs API
Johannes Berg [Fri, 2 Sep 2022 14:12:43 +0000 (16:12 +0200)]
wifi: mac80211: add ieee80211_find_sta_by_link_addrs API

Add a new API function ieee80211_find_sta_by_link_addrs()
that looks up the STA and link ID based on interface and
station link addresses.

We're going to use it for mac80211-hwsim to track on the
AP side which links are active.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: isolate driver from inactive links
Johannes Berg [Fri, 2 Sep 2022 14:12:42 +0000 (16:12 +0200)]
wifi: mac80211: isolate driver from inactive links

In order to let the driver select active links and properly
make multi-link connections, as a first step isolate the
driver from inactive links, and set the active links to be
only the association link for client-side interfaces. For
AP side nothing changes since APs always have to have all
their links active.

To simplify things, update the for_each_sta_active_link()
API to include the appropriate vif pointer.

This also implies not allocating a chanctx for an inactive
link, which requires a few more changes.

Since we now no longer try to program multiple links to the
driver, remove the check in the MLME code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: make smps_mode per-link
Benjamin Berg [Fri, 2 Sep 2022 14:12:41 +0000 (16:12 +0200)]
wifi: mac80211: make smps_mode per-link

The SMPS power save mode needs to be per-link rather than being shared
for all links. As such, move it into struct ieee80211_link_sta.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: use correct rx link_sta instead of default
Benjamin Berg [Fri, 2 Sep 2022 14:12:40 +0000 (16:12 +0200)]
wifi: mac80211: use correct rx link_sta instead of default

Use rx->link_sta everywhere instead of accessing the default link.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: set link_sta in reorder timeout
Johannes Berg [Tue, 6 Sep 2022 08:08:37 +0000 (10:08 +0200)]
wifi: mac80211: set link_sta in reorder timeout

Now that we have a link_sta pointer in the rx struct
we also need to fill it in all the cases. It didn't
matter so much until now as we weren't using it, but
the code should really be able to assume that if the
rx.sta is set, so is rx.link_sta.

Fixes: ccdde7c74ffd ("wifi: mac80211: properly implement MLO key handling")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agoMerge remote-tracking branch 'wireless/main' into wireless-next
Johannes Berg [Tue, 6 Sep 2022 08:05:29 +0000 (10:05 +0200)]
Merge remote-tracking branch 'wireless/main' into wireless-next

Merge wireless/main to get the rx.link fix, which is needed
for further work in this area.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agoMerge tag 'wireless-next-2022-09-03' of git://git.kernel.org/pub/scm/linux/kernel...
David S. Miller [Sun, 4 Sep 2022 10:24:34 +0000 (11:24 +0100)]
Merge tag 'wireless-next-2022-09-03' of git://git./linux/kernel/git/wireless/wireless-next

Johannes Berg says:

====================
drivers
 - rtw89: large update across the map, e.g. coex, pci(e), etc.
 - ath9k: uninit memory read fix
 - ath10k: small peer map fix and a WCN3990 device fix
 - wfx: underflow

stack
 - the "change MAC address while IFF_UP" change from James
   we discussed
 - more MLO work, including a set of fixes for the previous
   code, now that we have more code we can exercise it more
 - prevent some features with MLO that aren't ready yet
   (AP_VLAN and 4-address connections)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agowifi: mac80211_hwsim: fix multi-channel handling in netlink RX
Johannes Berg [Fri, 2 Sep 2022 14:12:49 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: fix multi-channel handling in netlink RX

In netlink RX, now that we can actually have multiple
channel contexts for MLO, things don't work well as we
only keep a single pointer, and then on link switching
we might NULL it, and hit the return if the channel is
NULL.

However, we already use mac80211_hwsim_tx_iter() which
deals with all this, so remove the test and adjust the
remaining code a bit.

This then means we no longer use the chanctx pointer,
so remove it as well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: call drv_sta_state() under sdata_lock() in reconfig
Johannes Berg [Fri, 2 Sep 2022 14:12:51 +0000 (16:12 +0200)]
wifi: mac80211: call drv_sta_state() under sdata_lock() in reconfig

Currently, other paths calling drv_sta_state() hold the mutex
and therefore drivers can assume that, and look at links with
that protection. Fix that for the reconfig path as well; to
do it more easily use ieee80211_reconfig_stations() for the
AP/AP_VLAN station reconfig as well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: nl80211: add MLD address to assoc BSS entries
Johannes Berg [Fri, 2 Sep 2022 14:12:50 +0000 (16:12 +0200)]
wifi: nl80211: add MLD address to assoc BSS entries

Add an MLD address attribute to BSS entries that the interface
is currently associated with to help userspace figure out what's
going on.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: mlme: refactor QoS settings code
Johannes Berg [Fri, 2 Sep 2022 14:12:46 +0000 (16:12 +0200)]
wifi: mac80211: mlme: refactor QoS settings code

Refactor the code to apply QoS settings to the driver so
we can call it on link switch.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211_hwsim: warn on invalid link address
Johannes Berg [Fri, 2 Sep 2022 14:12:39 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: warn on invalid link address

Catch the bugs fixed in mac80211 by the previous commits
and warn if an invalid address is added (or removed).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: fix double SW scan stop
Johannes Berg [Fri, 2 Sep 2022 14:12:55 +0000 (16:12 +0200)]
wifi: mac80211: fix double SW scan stop

When we stop a not-yet-started scan, we erroneously call
into the driver, causing a sequence of sw_scan_start()
followed by sw_scan_complete() twice. This will cause a
warning in hwsim with next in line commit that validates
the address passed to wmediumd/virtio. Fix this by doing
the calls only if we were actually scanning.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: mlme: assign link address correctly
Johannes Berg [Fri, 2 Sep 2022 14:12:38 +0000 (16:12 +0200)]
wifi: mac80211: mlme: assign link address correctly

Right now, we assign the link address only after we add
the link to the driver, which is quite obviously wrong.
It happens to work in many cases because it gets updated
immediately, and then link_conf updates may update it,
but it's clearly not really right.

Set the link address during ieee80211_mgd_setup_link()
so it's set before telling the driver about the link.

Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: move link code to a new file
Johannes Berg [Fri, 2 Sep 2022 14:12:37 +0000 (16:12 +0200)]
wifi: mac80211: move link code to a new file

We probably should've done that originally, we already have
about 300 lines of code there, and will add more. Move all
the link code we wrote to a new file.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211_hwsim: refactor RX a bit
Johannes Berg [Fri, 2 Sep 2022 14:12:36 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: refactor RX a bit

Refactor some common RX functionality between the netlink
and non-netlink paths, adding the special hwsim TLV (if
compiled) also in the netlink path.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211_hwsim: check STA magic in change_sta_links
Johannes Berg [Fri, 2 Sep 2022 14:12:35 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: check STA magic in change_sta_links

Just as an additional check that mac80211 isn't doing
anything strange, add a check of the STA magic (which
gets assigned when the station is added, and cleared
when the station is removed).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: remove unused arg to ieee80211_chandef_eht_oper
Johannes Berg [Fri, 2 Sep 2022 14:12:34 +0000 (16:12 +0200)]
wifi: mac80211: remove unused arg to ieee80211_chandef_eht_oper

We don't need the sdata argument, and it doesn't make any
sense for a direct conversion from one value to another,
so just remove the argument

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211_hwsim: remove multicast workaround
Johannes Berg [Fri, 2 Sep 2022 14:12:33 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: remove multicast workaround

Now that we have proper multicast TX in mac80211, there's
no longer a need to fake something here.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: nl80211: remove redundant err variable
Jinpeng Cui [Mon, 29 Aug 2022 11:29:53 +0000 (11:29 +0000)]
wifi: nl80211: remove redundant err variable

Return value from rdev_set_mcast_rate() directly instead of
taking this in another redundant variable.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Jinpeng Cui <cui.jinpeng2@zte.com.cn>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: Support POWERED_ADDR_CHANGE feature
James Prestwood [Fri, 26 Aug 2022 17:00:32 +0000 (10:00 -0700)]
wifi: mac80211: Support POWERED_ADDR_CHANGE feature

Adds support in mac80211 for NL80211_EXT_FEATURE_POWERED_ADDR_CHANGE.
The motivation behind this functionality is to fix limitations of
address randomization on frequencies which are disallowed in world
roaming.

The way things work now, if a client wants to randomize their address
per-connection it must power down the device, change the MAC, and
power back up. Here lies a problem since powering down the device
may result in frequencies being disabled (until the regdom is set).
If the desired BSS is on one such frequency the client is unable to
connect once the phy is powered again.

For mac80211 based devices changing the MAC while powered is possible
but currently disallowed (-EBUSY). This patch adds some logic to
allow a MAC change while powered by removing the interface, changing
the MAC, and adding it again. mac80211 will advertise support for
this feature so userspace can determine the best course of action e.g.
disallow address randomization on certain frequencies if not
supported.

There are certain limitations put on this which simplify the logic:
 - No active connection
 - No offchannel work, including scanning.

Signed-off-by: James Prestwood <prestwoj@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: nl80211: Add POWERED_ADDR_CHANGE feature
James Prestwood [Fri, 26 Aug 2022 17:00:31 +0000 (10:00 -0700)]
wifi: nl80211: Add POWERED_ADDR_CHANGE feature

Add a new extended feature bit signifying that the wireless hardware
supports changing the MAC address while the underlying net_device is
powered. Note that this has a different meaning from
IFF_LIVE_ADDR_CHANGE as additional restrictions might be imposed by
the hardware, such as:

 - No connection is active on this interface, carrier is off
 - No scan is in progress
 - No offchannel operations are in progress

Signed-off-by: James Prestwood <prestwoj@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: prevent 4-addr use on MLDs
Johannes Berg [Fri, 2 Sep 2022 14:12:58 +0000 (16:12 +0200)]
wifi: mac80211: prevent 4-addr use on MLDs

We haven't tried this yet, and it's not very likely to
work well right now, so for now disable 4-addr use on
interfaces that are MLDs.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20220902161143.f2e4cc2efaa1.I5924e8fb44a2d098b676f5711b36bbc1b1bd68e2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: prevent VLANs on MLDs
Johannes Berg [Fri, 2 Sep 2022 14:12:59 +0000 (16:12 +0200)]
wifi: mac80211: prevent VLANs on MLDs

Do not allow VLANs to be added to AP interfaces that are
MLDs, this isn't going to work because the link structs
aren't propagated to the VLAN interfaces yet.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20220902161144.8c88531146e9.If2ef9a3b138d4f16ed2fda91c852da156bdf5e4d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: use struct_group to copy addresses
Johannes Berg [Mon, 29 Aug 2022 09:46:38 +0000 (11:46 +0200)]
wifi: use struct_group to copy addresses

We sometimes copy all the addresses from the 802.11 header
for the AAD, which may cause complaints from fortify checks.
Use struct_group() to avoid the compiler warnings/errors.

Change-Id: Ic3ea389105e7813b22095b295079eecdabde5045
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211_hwsim: check length for virtio packets
Soenke Huster [Fri, 2 Sep 2022 08:19:58 +0000 (10:19 +0200)]
wifi: mac80211_hwsim: check length for virtio packets

An invalid packet with a length shorter than the specified length in the
netlink header can lead to use-after-frees and slab-out-of-bounds in the
processing of the netlink attributes, such as the following:

  BUG: KASAN: slab-out-of-bounds in __nla_validate_parse+0x1258/0x2010
  Read of size 2 at addr ffff88800ac7952c by task kworker/0:1/12

  Workqueue: events hwsim_virtio_rx_work
  Call Trace:
   <TASK>
   dump_stack_lvl+0x45/0x5d
   print_report.cold+0x5e/0x5e5
   kasan_report+0xb1/0x1c0
   __nla_validate_parse+0x1258/0x2010
   __nla_parse+0x22/0x30
   hwsim_virtio_handle_cmd.isra.0+0x13f/0x2d0
   hwsim_virtio_rx_work+0x1b2/0x370
   process_one_work+0x8df/0x1530
   worker_thread+0x575/0x11a0
   kthread+0x29d/0x340
   ret_from_fork+0x22/0x30
 </TASK>

Discarding packets with an invalid length solves this.
Therefore, skb->len must be set at reception.

Change-Id: Ieaeb9a4c62d3beede274881a7c2722c6c6f477b6
Signed-off-by: Soenke Huster <soenke.huster@eknoes.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: fix locking in auth/assoc timeout
Johannes Berg [Fri, 2 Sep 2022 14:11:14 +0000 (16:11 +0200)]
wifi: mac80211: fix locking in auth/assoc timeout

If we hit an authentication or association timeout, we only
release the chanctx for the deflink, and the other link(s)
are released later by ieee80211_vif_set_links(), but we're
not locking this correctly.

Fix the locking here while releasing the channels and links.

Change-Id: I9e08c1a5434592bdc75253c1abfa6c788f9f39b1
Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: mlme: release deflink channel in error case
Johannes Berg [Fri, 2 Sep 2022 14:11:15 +0000 (16:11 +0200)]
wifi: mac80211: mlme: release deflink channel in error case

In the prep_channel error case we didn't release the deflink
channel leaving it to be left around. Fix that.

Change-Id: If0dfd748125ec46a31fc6045a480dc28e03723d2
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agowifi: mac80211: fix link warning in RX agg timer expiry
Mukesh Sisodiya [Fri, 2 Sep 2022 14:11:31 +0000 (16:11 +0200)]
wifi: mac80211: fix link warning in RX agg timer expiry

The rx data link pointer isn't set from the RX aggregation timer,
resulting in a later warning. Fix that by setting it to the first
valid link for now, with a FIXME to worry about statistics later,
it's not very important since it's just the timeout case.

Reported-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/498d714c-76be-9d04-26db-a1206878de5e@redhat.com
Fixes: 56057da4569b ("wifi: mac80211: rx: track link in RX data")
Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
22 months agoMerge branch 'net_sched-redundant-resource-cleanups'
David S. Miller [Sat, 3 Sep 2022 09:40:40 +0000 (10:40 +0100)]
Merge branch 'net_sched-redundant-resource-cleanups'

Zhengchao Shao says:

====================
net: sched: remove redundant resource cleanup when init() fails

qdisc_create() calls .init() to initialize qdisc. If the initialization
fails, qdisc_create() will call .destroy() to release resources.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: sched: htb: remove redundant resource cleanup in htb_init()
Zhengchao Shao [Fri, 2 Sep 2022 08:34:30 +0000 (16:34 +0800)]
net: sched: htb: remove redundant resource cleanup in htb_init()

If htb_init() fails, qdisc_create() invokes htb_destroy() to clear
resources. Therefore, remove redundant resource cleanup in htb_init().

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: sched: fq_codel: remove redundant resource cleanup in fq_codel_init()
Zhengchao Shao [Fri, 2 Sep 2022 08:34:29 +0000 (16:34 +0800)]
net: sched: fq_codel: remove redundant resource cleanup in fq_codel_init()

If fq_codel_init() fails, qdisc_create() invokes fq_codel_destroy() to
clear resources. Therefore, remove redundant resource cleanup in
fq_codel_init().

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: fec: add stop mode support for imx8 platform
Wei Fang [Fri, 2 Sep 2022 02:30:01 +0000 (10:30 +0800)]
net: fec: add stop mode support for imx8 platform

The current driver support stop mode by calling machine api.
The patch add dts support to set GPR register for stop request.

imx8mq enter stop/exit stop mode by setting GPR bit, which can
be accessed by A core.
imx8qm enter stop/exit stop mode by calling IMX_SC ipc APIs that
communicate with M core ipc service, and the M core set the related
GPR bit at last.

Signed-off-by: Wei Fang <wei.fang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agor8152: Add MAC passthrough support for Lenovo Travel Hub
André Apitzsch [Thu, 1 Sep 2022 17:00:13 +0000 (19:00 +0200)]
r8152: Add MAC passthrough support for Lenovo Travel Hub

The Lenovo USB-C Travel Hub supports MAC passthrough.

Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet/ipv4: Use __DECLARE_FLEX_ARRAY() helper
Gustavo A. R. Silva [Wed, 31 Aug 2022 19:12:42 +0000 (14:12 -0500)]
net/ipv4: Use __DECLARE_FLEX_ARRAY() helper

We now have a cleaner way to keep compatibility with user-space
(a.k.a. not breaking it) when we need to keep in place a one-element
array (for its use in user-space) together with a flexible-array
member (for its use in kernel-space) without making it hard to read
at the source level. This is through the use of the new
__DECLARE_FLEX_ARRAY() helper macro.

The size and memory layout of the structure is preserved after the
changes. See below.

Before changes:

$ pahole -C ip_msfilter net/ipv4/igmp.o
struct ip_msfilter {
union {
struct {
__be32     imsf_multiaddr_aux;   /*     0     4 */
__be32     imsf_interface_aux;   /*     4     4 */
__u32      imsf_fmode_aux;       /*     8     4 */
__u32      imsf_numsrc_aux;      /*    12     4 */
__be32     imsf_slist[1];        /*    16     4 */
};                                       /*     0    20 */
struct {
__be32     imsf_multiaddr;       /*     0     4 */
__be32     imsf_interface;       /*     4     4 */
__u32      imsf_fmode;           /*     8     4 */
__u32      imsf_numsrc;          /*    12     4 */
__be32     imsf_slist_flex[0];   /*    16     0 */
};                                       /*     0    16 */
};                                               /*     0    20 */

/* size: 20, cachelines: 1, members: 1 */
/* last cacheline: 20 bytes */
};

After changes:

$ pahole -C ip_msfilter net/ipv4/igmp.o
struct ip_msfilter {
__be32                     imsf_multiaddr;       /*     0     4 */
__be32                     imsf_interface;       /*     4     4 */
__u32                      imsf_fmode;           /*     8     4 */
__u32                      imsf_numsrc;          /*    12     4 */
union {
__be32             imsf_slist[1];        /*    16     4 */
struct {
struct {
} __empty_imsf_slist_flex;       /*    16     0 */
__be32     imsf_slist_flex[0];   /*    16     0 */
};                                       /*    16     0 */
};                                               /*    16     4 */

/* size: 20, cachelines: 1, members: 5 */
/* last cacheline: 20 bytes */
};

In the past, we had to duplicate the whole original structure within
a union, and update the names of all the members. Now, we just need to
declare the flexible-array member to be used in kernel-space through
the __DECLARE_FLEX_ARRAY() helper together with the one-element array,
within a union. This makes the source code more clean and easier to read.

Link: https://github.com/KSPP/linux/issues/193
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet/sched: cls_api: remove redundant 0 check in tcf_qevent_init()
Zhengchao Shao [Thu, 1 Sep 2022 01:16:17 +0000 (09:16 +0800)]
net/sched: cls_api: remove redundant 0 check in tcf_qevent_init()

tcf_qevent_parse_block_index() never returns a zero block_index.
Therefore, it is unnecessary to check the value of block_index in
tcf_qevent_init().

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Link: https://lore.kernel.org/r/20220901011617.14105-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet: lantiq_etop: Fix return type for implementation of ndo_start_xmit
GUO Zihua [Fri, 2 Sep 2022 08:15:21 +0000 (16:15 +0800)]
net: lantiq_etop: Fix return type for implementation of ndo_start_xmit

Since Linux now supports CFI, it will be a good idea to fix mismatched
return type for implementation of hooks. Otherwise this might get
cought out by CFI and cause a panic.

ltq_etop_tx() would return either NETDEV_TX_BUSY or NETDEV_TX_OK, so
change the return type to netdev_tx_t directly.

Signed-off-by: GUO Zihua <guozihua@huawei.com>
Link: https://lore.kernel.org/r/20220902081521.59867-1-guozihua@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet: sunplus: Fix return type for implementation of ndo_start_xmit
GUO Zihua [Fri, 2 Sep 2022 08:15:50 +0000 (16:15 +0800)]
net: sunplus: Fix return type for implementation of ndo_start_xmit

Since Linux now supports CFI, it will be a good idea to fix mismatched
return type for implementation of hooks. Otherwise this might get
cought out by CFI and cause a panic.

spl2sw_ethernet_start_xmit() would return either NETDEV_TX_BUSY or
NETDEV_TX_OK, so change the return type to netdev_tx_t directly.

Signed-off-by: GUO Zihua <guozihua@huawei.com>
Link: https://lore.kernel.org/r/20220902081550.60095-1-guozihua@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet: xscale: Fix return type for implementation of ndo_start_xmit
GUO Zihua [Fri, 2 Sep 2022 08:16:12 +0000 (16:16 +0800)]
net: xscale: Fix return type for implementation of ndo_start_xmit

Since Linux now supports CFI, it will be a good idea to fix mismatched
return type for implementation of hooks. Otherwise this might get
cought out by CFI and cause a panic.

eth_xmit() would return either NETDEV_TX_BUSY or NETDEV_TX_OK, so
change the return type to netdev_tx_t directly.

Signed-off-by: GUO Zihua <guozihua@huawei.com>
Link: https://lore.kernel.org/r/20220902081612.60405-1-guozihua@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet: broadcom: Fix return type for implementation of
GUO Zihua [Fri, 2 Sep 2022 07:54:07 +0000 (15:54 +0800)]
net: broadcom: Fix return type for implementation of

Since Linux now supports CFI, it will be a good idea to fix mismatched
return type for implementation of hooks. Otherwise this might get
cought out by CFI and cause a panic.

bcm4908_enet_start_xmit() would return either NETDEV_TX_BUSY or
NETDEV_TX_OK, so change the return type to netdev_tx_t directly.

Signed-off-by: GUO Zihua <guozihua@huawei.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220902075407.52358-1-guozihua@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet: ieee802154: Fix compilation error when CONFIG_IEEE802154_NL802154_EXPERIMENTAL...
Gal Pressman [Fri, 2 Sep 2022 03:06:20 +0000 (20:06 -0700)]
net: ieee802154: Fix compilation error when CONFIG_IEEE802154_NL802154_EXPERIMENTAL is disabled

When CONFIG_IEEE802154_NL802154_EXPERIMENTAL is disabled,
NL802154_CMD_DEL_SEC_LEVEL is undefined and results in a compilation
error:
net/ieee802154/nl802154.c:2503:19: error: 'NL802154_CMD_DEL_SEC_LEVEL' undeclared here (not in a function); did you mean 'NL802154_CMD_SET_CCA_ED_LEVEL'?
 2503 |  .resv_start_op = NL802154_CMD_DEL_SEC_LEVEL + 1,
      |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~
      |                   NL802154_CMD_SET_CCA_ED_LEVEL

Unhide the experimental commands, having them defined in an enum
makes no difference.

Fixes: 9c5d03d36251 ("genetlink: start to validate reserved header bytes")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Tested-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Link: https://lore.kernel.org/r/20220902030620.2737091-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet: remove netif_tx_napi_add()
Jakub Kicinski [Thu, 1 Sep 2022 00:00:58 +0000 (17:00 -0700)]
net: remove netif_tx_napi_add()

All callers are now gone.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: bql: add more documentation
Eric Dumazet [Wed, 31 Aug 2022 18:44:27 +0000 (18:44 +0000)]
net: bql: add more documentation

Add some documentation for netdev_tx_sent_queue() and
netdev_tx_completed_queue()

Stating that netdev_tx_completed_queue() must be called once
per TX completion round is apparently not obvious for everybody.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agoMerge branch 'net-ipa-transaction-state-IDs'
David S. Miller [Fri, 2 Sep 2022 11:08:44 +0000 (12:08 +0100)]
Merge branch 'net-ipa-transaction-state-IDs'

Alex Elder says:

====================
net: ipa: use IDs to track transaction state

This series is the first of three groups of changes that simplify
the way the IPA driver tracks the state of its transactions.

Each GSI channel has a fixed number of transactions allocated at
initialization time.  The number allocated matches the number of
TREs in the transfer ring associated with the channel.  This is
because the transfer ring limits the number of transfers that can
ever be underway, and in the worst case, each transaction represents
a single TRE.

Transactions go through various states during their lifetime.
Currently a set of lists keeps track of which transactions are in
each state.  Initially, all transactions are free.  An allocated
transaction is placed on the allocated list.  Once an allocated
transaction is committed, it is moved from the allocated to the
committed list.  When a committed transaction is sent to hardware
(via a doorbell) it is moved to the pending list.  When hardware
signals that some work has completed, transactions are moved to the
completed list.  Finally, when a completed transaction is polled
it's moved to the polled list before being removed when it becomes
free.

Changing a transaction's state thus normally involves manipulating
two lists, and to prevent corruption a spinlock is held while the
lists are updated.

Transactions move through their states in a well-defined sequence
though, and they do so strictly in order.  So transaction 0 is
always allocated before transaction 1; transaction 0 is always
committed before transaction 1; and so on, through completion,
polling, and becoming free.  Because of this, it's sufficient to
just keep track of which transaction is the first in each state.
The rest of the transactions in a given state can be derived from
the first transaction in an "adjacent" state.  As a result, we can
track the state of all transactions with a set of indexes, and can
update these without the need for a spinlock.

This first group of patches just defines the set of indexes that
will be used for this new way of tracking transaction state.  Two
more groups of patches will follow.  I've broken the 17 patches into
these three groups to facilitate review.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: ipa: track polled transactions with an ID
Alex Elder [Wed, 31 Aug 2022 22:40:17 +0000 (17:40 -0500)]
net: ipa: track polled transactions with an ID

Add a transaction ID to track the first element in the transaction
array that has been polled.  Advance the ID when we are releasing a
transaction.

Temporarily add warnings that verify that the first polled
transaction tracked by the ID matches the first element on the
polled list, both when polling and freeing.

Remove the temporary warnings added by the previous commit.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: ipa: track completed transactions with an ID
Alex Elder [Wed, 31 Aug 2022 22:40:16 +0000 (17:40 -0500)]
net: ipa: track completed transactions with an ID

Add a transaction ID field to track the first element in the
transaction array that has completed but has not yet been polled.

Advance the ID when we are processing a transaction in the NAPI
polling loop (where completed transactions become polled).

Temporarily add warnings that verify that the first completed
transaction tracked by the ID matches the first element on the
completed list, both when pending and completing.

Remove the temporary warnings added by the previous commit.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: ipa: track pending transactions with an ID
Alex Elder [Wed, 31 Aug 2022 22:40:15 +0000 (17:40 -0500)]
net: ipa: track pending transactions with an ID

Add a transaction ID field to track the first element in the
transaction array that is pending (sent to hardware) but not yet
complete.  Advance the ID when a completion event for a channel
indicates that transactions have completed.

Temporarily add warnings that verify that the first pending
transaction tracked by the ID matches the first element on the
pending list, both when pending and completing, as well as when
resetting the channel.

Remove the temporary warnings added by the previous commit.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: ipa: track committed transactions with an ID
Alex Elder [Wed, 31 Aug 2022 22:40:14 +0000 (17:40 -0500)]
net: ipa: track committed transactions with an ID

Add a transaction ID field to track the first element in a channel's
transaction array that has been committed, but not yet passed to the
hardware.  Advance the ID when the hardware is notified via doorbell
that TREs from a transaction are ready for consumption.

Temporarily add warnings that verify that the first committed
transaction tracked by the ID matches the first element on the
committed list, both when committing and pending (at doorbell).

Remove the temporary warnings added by the previous commit.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: ipa: track allocated transactions with an ID
Alex Elder [Wed, 31 Aug 2022 22:40:13 +0000 (17:40 -0500)]
net: ipa: track allocated transactions with an ID

Transactions for a channel are now managed in an array, with a free
transaction ID indicating which is the next one free.

Add another transaction ID field to track the first element in the
array that has been allocated.  Advance it when a transaction is
committed (because that is when that transaction leaves allocated
state).

Temporarily add warnings that verify that the first allocated
transaction tracked by the ID matches the first element on the
allocated list, both when allocating and committing a transaction.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: ipa: use an array for transactions
Alex Elder [Wed, 31 Aug 2022 22:40:12 +0000 (17:40 -0500)]
net: ipa: use an array for transactions

Transactions are always allocated one at a time.  The maximum number
of them we could ever need occurs if each TRE is assigned to a
transaction.  So a channel requires no more transactions than the
number of TREs in its transfer ring.  That number is known to be a
power-of-2 less than 65536.

The transaction pool abstraction is used for other things, but for
transactions we can use a simple array of transaction structures,
and use a free index to indicate which entry in the array is the
next one free for allocation.

By having the number of elements in the array be a power-of-2, we
can use an ever-incrementing 16-bit free index, and use it modulo
the array size.  Distinguish a "trans_id" (whose value can exceed
the number of entries in the transaction array) from a "trans_index"
(which is less than the number of entries).

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agoMerge branch 'lan966x-make-reset-optional'
David S. Miller [Fri, 2 Sep 2022 10:37:27 +0000 (11:37 +0100)]
Merge branch 'lan966x-make-reset-optional'

Michael Walle says:

====================
net: lan966x: make reset optional

This is the remaining part of the reset rework on the LAN966x targetting
the netdev tree.

The former series can be found at:
https://lore.kernel.org/lkml/20220826115607.1148489-1-michael@walle.cc/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: lan966x: make reset optional
Michael Walle [Wed, 31 Aug 2022 11:18:55 +0000 (13:18 +0200)]
net: lan966x: make reset optional

There is no dedicated reset for just the switch core. The reset which
is used up until now, is more of a global reset, resetting almost the
whole SoC and cause spurious errors by doing so. Make it possible to
handle the reset elsewhere and make the reset optional.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agodt-bindings: net: sparx5: don't require a reset line
Michael Walle [Wed, 31 Aug 2022 11:18:54 +0000 (13:18 +0200)]
dt-bindings: net: sparx5: don't require a reset line

Make the reset line optional. It turns out, there is no dedicated reset
for the switch. Instead, the reset which was used up until now, was kind
of a global reset. This is now handled elsewhere, thus don't require a
reset.

Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agowifi: move from strlcpy with unused retval to strscpy
Wolfram Sang [Tue, 30 Aug 2022 20:14:53 +0000 (22:14 +0200)]
wifi: move from strlcpy with unused retval to strscpy

Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220830201457.7984-2-wsa+renesas@sang-engineering.com
22 months agowifi: wilc1000: remove redundant ret variable
Jinpeng Cui [Tue, 30 Aug 2022 10:55:05 +0000 (10:55 +0000)]
wifi: wilc1000: remove redundant ret variable

Return value from cfg80211_rx_mgmt() directly instead of
taking this in another redundant variable.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Jinpeng Cui <cui.jinpeng2@zte.com.cn>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220830105505.287564-1-cui.jinpeng2@zte.com.cn
22 months agowifi: rtw88: add missing destroy_workqueue() on error path in rtw_core_init()
Yang Yingliang [Fri, 26 Aug 2022 02:38:17 +0000 (10:38 +0800)]
wifi: rtw88: add missing destroy_workqueue() on error path in rtw_core_init()

Add the missing destroy_workqueue() before return from rtw_core_init()
in error path.

Fixes: fe101716c7c9 ("rtw88: replace tx tasklet with work queue")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220826023817.3908255-1-yangyingliang@huawei.com
22 months agowifi: wfx: prevent underflow in wfx_send_pds()
Dan Carpenter [Fri, 19 Aug 2022 05:23:43 +0000 (08:23 +0300)]
wifi: wfx: prevent underflow in wfx_send_pds()

This does a "chunk_len - 4" subtraction later when it calls:

ret = wfx_hif_configuration(wdev, buf + 4, chunk_len - 4);

so check for "chunk_len" is less than 4.

Fixes: dcbecb497908 ("staging: wfx: allow new PDS format")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/Yv8eX7Xv2ubUOvW7@kili
22 months agowifi: rtl8xxxu: tighten bounds checking in rtl8xxxu_read_efuse()
Dan Carpenter [Fri, 19 Aug 2022 05:22:32 +0000 (08:22 +0300)]
wifi: rtl8xxxu: tighten bounds checking in rtl8xxxu_read_efuse()

There some bounds checking to ensure that "map_addr" is not out of
bounds before the start of the loop.  But the checking needs to be
done as we iterate through the loop because "map_addr" gets larger as
we iterate.

Fixes: 26f1fad29ad9 ("New driver: rtl8xxxu (mac80211)")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jes Sorensen <Jes.Sorensen@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/Yv8eGLdBslLAk3Ct@kili
22 months agowifi: rtw89: declare to support beamformee above bandwidth 80MHz
Ping-Ke Shih [Fri, 26 Aug 2022 06:10:11 +0000 (14:10 +0800)]
wifi: rtw89: declare to support beamformee above bandwidth 80MHz

Declare this to tell AP we can support beamformee over bandwidth 160M,
and then yield better performance in field.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220826061011.9037-3-pkshih@realtek.com
22 months agowifi: rtw89: correct polling address of address CAM
Ping-Ke Shih [Fri, 26 Aug 2022 06:10:10 +0000 (14:10 +0800)]
wifi: rtw89: correct polling address of address CAM

Writing address to kick hardware to initialize address CAM, and then poll
ready bit to determine completed. Old wrong code poll wrong register
address, so it can lead error and fail to bring up interface.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220826061011.9037-2-pkshih@realtek.com
22 months agowifi: rtw89: no HTC field if TX rate might fallback to legacy
Ping-Ke Shih [Fri, 26 Aug 2022 06:10:09 +0000 (14:10 +0800)]
wifi: rtw89: no HTC field if TX rate might fallback to legacy

Packets containing HTC field with legacy rate could be dropped by AP. If
TX rate of report is lower than MCS2, hardware might fall back rate to
legacy. Therefore, add a checking rule to avoid HTC field in this
situation.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220826061011.9037-1-pkshih@realtek.com
22 months agowifi: rtw89: pci: correct TX resource checking in low power mode
Ping-Ke Shih [Wed, 24 Aug 2022 06:33:12 +0000 (14:33 +0800)]
wifi: rtw89: pci: correct TX resource checking in low power mode

Number of TX resource must be minimum of TX_BD and TX_WD. Only considering
TX_BD could drop TX packets pulled from mac80211 if TX_WD is unavailable.

Fixes: 52edbb9fb78a ("rtw89: ps: access TX/RX rings via another registers in low power mode")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220824063312.15784-2-pkshih@realtek.com
22 months agowifi: rtw89: pci: fix interrupt stuck after leaving low power mode
Ping-Ke Shih [Wed, 24 Aug 2022 06:33:11 +0000 (14:33 +0800)]
wifi: rtw89: pci: fix interrupt stuck after leaving low power mode

We turn off interrupt in ISR, and re-enable interrupt in threadfn or
napi_poll according to the mode it stays. If we are turning off interrupt,
rtwpci->running flag is unset and interrupt handler stop processing even
if it was called, so disallow to re-enable interrupt in this situation.
Or, wifi chip doesn't trigger interrupt events anymore because interrupt
status (ISR) isn't clear by interrupt handler anymore.

Fixes: c83dcd0508e2 ("rtw89: pci: add a separate interrupt handler for low power mode")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220824063312.15784-1-pkshih@realtek.com
22 months agowifi: rtw89: enlarge the CFO tracking boundary
Cheng-Chieh Hsieh [Wed, 24 Aug 2022 06:14:25 +0000 (14:14 +0800)]
wifi: rtw89: enlarge the CFO tracking boundary

The calibration value of XTAL offset may be too large in some wifi
modules, that the CFO tracking mechanism under the existing tracking
boundary can not adjust the CFO to the tolerable range. So we enlarge it.

Signed-off-by: Cheng-Chieh Hsieh <cj.hsieh@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220824061425.13764-1-pkshih@realtek.com
22 months agowifi: rtw89: pci: correct suspend/resume setting for variant chips
Chin-Yen Lee [Fri, 19 Aug 2022 06:48:11 +0000 (14:48 +0800)]
wifi: rtw89: pci: correct suspend/resume setting for variant chips

We find that suspend/resume tests cause 8852CE lost, because some pci
registers are changed for 8852CE. So, correct them accordingly.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220819064811.37700-6-pkshih@realtek.com
22 months agowifi: rtw89: pci: enable CLK_REQ, ASPM, L1 and L1ss for 8852c
Chin-Yen Lee [Fri, 19 Aug 2022 06:48:10 +0000 (14:48 +0800)]
wifi: rtw89: pci: enable CLK_REQ, ASPM, L1 and L1ss for 8852c

8852CE controls CLKREQ, ASPM L1, L1ss via wifi registers
instead, so change them accordingly.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220819064811.37700-5-pkshih@realtek.com
22 months agowifi: rtw89: pci: fix PCI PHY auto adaption by using software restore
Chia-Yuan Li [Fri, 19 Aug 2022 06:48:09 +0000 (14:48 +0800)]
wifi: rtw89: pci: fix PCI PHY auto adaption by using software restore

There is chance that PCI PHY auto adaption fail. When first time boot up,
software restore the right adaption value and close PHY auto adaption
mechanism.

Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220819064811.37700-4-pkshih@realtek.com
22 months agowifi: rtw89: 8852c: set TBTT shift configuration
Chia-Yuan Li [Fri, 19 Aug 2022 06:48:08 +0000 (14:48 +0800)]
wifi: rtw89: 8852c: set TBTT shift configuration

It is found that 8852ce loses some beacon after
enabling deep ps mode. We set TBTT shift to wake up
firmware early to open RF/BB for receiving beacon in time.

Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220819064811.37700-3-pkshih@realtek.com
22 months agowifi: rtw89: add retry to change power_mode state
Chin-Yen Lee [Fri, 19 Aug 2022 06:48:07 +0000 (14:48 +0800)]
wifi: rtw89: add retry to change power_mode state

When starting to send heavy traffic in low power mode,
driver will call multiple tx wake notify to wake firmware
within a short time. In this situation, firmware may miss
power mode change request from driver and leads to status
error. So we change driver to call power_mode_change at most
three times to make sure firmware could get the request.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220819064811.37700-2-pkshih@realtek.com
22 months agowifi: rtw89: correct BA CAM allocation
Ping-Ke Shih [Tue, 16 Aug 2022 01:32:47 +0000 (09:32 +0800)]
wifi: rtw89: correct BA CAM allocation

BA CAM entries are global resource of hardware, so move the bitmap and
instances to rtw89_cam_info, and then use link list from rtw89_sta to
these instances.

To check the allocation, add ba_cam to debugfs:

  map:
   mac_id:    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
   addr_cam:  01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
   bssid_cam: 01 00 00 00 00 00 00 00
   sec_cam:   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
   ba_cam:    03 00 00 00 00 00 00 00
  VIF [0] 94:08:53:8e:ef:21
   bssid_cam_idx=0
   addr_cam_idx=0
   -> bssid_cam_idx=0
   sec_cam_bitmap=00 00 00 00 00 00 00 00
  STA [0] 38:78:62:8b:cb:c6
   addr_cam_idx=0
   -> bssid_cam_idx=0
   sec_cam_bitmap=00 00 00 00 00 00 00 00
   ba_cam tid[6]=0, tid[1]=1

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220816013247.6243-4-pkshih@realtek.com
22 months agowifi: rtw89: 8852c: initialize and correct BA CAM content
Ping-Ke Shih [Tue, 16 Aug 2022 01:32:46 +0000 (09:32 +0800)]
wifi: rtw89: 8852c: initialize and correct BA CAM content

The bacam_v1 must do additional initialization, and H2C content of BA CAM
is also different. So, correct them accordingly.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220816013247.6243-3-pkshih@realtek.com
22 months agowifi: rtw89: 8852c: declare correct BA CAM number
Ping-Ke Shih [Tue, 16 Aug 2022 01:32:45 +0000 (09:32 +0800)]
wifi: rtw89: 8852c: declare correct BA CAM number

8852A has 2 BA CAM entries, but 8852C has 8 entries. Add a field to
discriminate their differences.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220816013247.6243-2-pkshih@realtek.com
22 months agowifi: rtw89: 8852c: update TX power tables to R49
Zong-Zhe Yang [Fri, 12 Aug 2022 09:31:16 +0000 (17:31 +0800)]
wifi: rtw89: 8852c: update TX power tables to R49

TX power byrate:
doesn't change

TX power limit:
configure values for KCC and UK
refine a bit configuration vales

TX power limit_ru:
configure values for KCC and UK
refine a bit configuration values
change 6GHz to follow indoor setting
configure 6GHz values for ETSI

TX power shape:
change with TX power limit/limit_ru

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220812093116.56791-4-pkshih@realtek.com
22 months agowifi: rtw89: 8852c: update RF radio A/B parameters to R49
Ping-Ke Shih [Fri, 12 Aug 2022 09:31:15 +0000 (17:31 +0800)]
wifi: rtw89: 8852c: update RF radio A/B parameters to R49

Update 8852c radio A/B parameters from internal HALRF_027_00_071 R49.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220812093116.56791-3-pkshih@realtek.com
22 months agowifi: rtw89: TX power limit/limit_ru consider negative
Zong-Zhe Yang [Fri, 12 Aug 2022 09:31:14 +0000 (17:31 +0800)]
wifi: rtw89: TX power limit/limit_ru consider negative

Some chips' RF TX power limit/limit_ru tables start to configure some
negative values. Fix the setting logic to prevent negative values from
polluting fields of others.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220812093116.56791-2-pkshih@realtek.com
22 months agortw89: coex: Update Wi-Fi driver/firmware TDMA cycle report for RTL8852c
Ching-Te Ku [Mon, 25 Jul 2022 02:35:09 +0000 (10:35 +0800)]
rtw89: coex: Update Wi-Fi driver/firmware TDMA cycle report for RTL8852c

Because RTL8852c firmware handshake use different structure definition
with RTL8852a, so it's necessary to update a version for RTL8852c.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220725023509.43114-10-pkshih@realtek.com
22 months agortw89: coex: Add v1 Wi-Fi SCC coexistence policy
Ching-Te Ku [Mon, 25 Jul 2022 02:35:08 +0000 (10:35 +0800)]
rtw89: coex: Add v1 Wi-Fi SCC coexistence policy

Because the later firmware had patched some new feature, it can control
the Wi-Fi/BT slots more efficiently. This patch enhance it for better
Wi-Fi SCC mode performance.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220725023509.43114-9-pkshih@realtek.com
22 months agortw89: coex: Move _set_policy to chip_ops
Ching-Te Ku [Mon, 25 Jul 2022 02:35:07 +0000 (10:35 +0800)]
rtw89: coex: Move _set_policy to chip_ops

Due to the difference of Wi-Fi firmware supported feature, RTL8852C
need to defined more policy to enable the features.
(Ex: DBCC, Wi-Fi multi-role, TDMA instant and so on)

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220725023509.43114-8-pkshih@realtek.com
22 months agortw89: coex: update WL role info v1 for RTL8852C branch using
Ching-Te Ku [Mon, 25 Jul 2022 02:35:06 +0000 (10:35 +0800)]
rtw89: coex: update WL role info v1 for RTL8852C branch using

The H2C format and support feature are different. The newer Wi-Fi firmware
and driver branch need to handshake more information like DBCC or P2P
connection info.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220725023509.43114-7-pkshih@realtek.com
22 months agortw89: coex: Add v1 version TDMA format and parameters
Ching-Te Ku [Mon, 25 Jul 2022 02:35:05 +0000 (10:35 +0800)]
rtw89: coex: Add v1 version TDMA format and parameters

RTL8852C use a later version Wi-Fi firmware, there are some parameters
need to be defined. These new parameter can avoid some unexpected
TDMA mode while Wi-Fi enter/leave lps.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220725023509.43114-6-pkshih@realtek.com
22 months agortw89: coex: Define BT B1 slot length
Ching-Te Ku [Mon, 25 Jul 2022 02:35:04 +0000 (10:35 +0800)]
rtw89: coex: Define BT B1 slot length

It is for setting up BT slot max length at BT auto slot mechanism.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220725023509.43114-5-pkshih@realtek.com
22 months agortw89: coex: Add logic to parsing rtl8852c firmware type ctrl report
Ching-Te Ku [Mon, 25 Jul 2022 02:35:03 +0000 (10:35 +0800)]
rtw89: coex: Add logic to parsing rtl8852c firmware type ctrl report

Add a part of logic to parse type of ctrl report from firmware, and
remove Bluetooth packet counter count from driver, the feature was
moved to firmware at rtl8852c.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220725023509.43114-4-pkshih@realtek.com
22 months agortw89: coex: Move Wi-Fi firmware coexistence matching version to chip
Ching-Te Ku [Mon, 25 Jul 2022 02:35:02 +0000 (10:35 +0800)]
rtw89: coex: Move Wi-Fi firmware coexistence matching version to chip

To configure the different chips with different coexistence version,
separated the firmware feature version matching number is necessary.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220725023509.43114-3-pkshih@realtek.com
22 months agortw89: coex: update radio state for RTL8852A/RTL8852C
Ching-Te Ku [Mon, 25 Jul 2022 02:35:01 +0000 (10:35 +0800)]
rtw89: coex: update radio state for RTL8852A/RTL8852C

Update scoreboard setting to let Bluetooth know Wi-Fi power save state.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220725023509.43114-2-pkshih@realtek.com
22 months agortw89: 8852c: adjust mactxen delay of mac/phy interface
Chia-Yuan Li [Mon, 4 Jul 2022 02:34:53 +0000 (10:34 +0800)]
rtw89: 8852c: adjust mactxen delay of mac/phy interface

mac_txen time is to inform TMAC tx after rx air end.
Modify 8852c value to meet TB SIFS time.

Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220704023453.19935-7-pkshih@realtek.com
22 months agortw89: 8852c: modify PCIE prebkf time
Chia-Yuan Li [Mon, 4 Jul 2022 02:34:52 +0000 (10:34 +0800)]
rtw89: 8852c: modify PCIE prebkf time

Prebkf time is to inform generating tx command if remaining backoff
time less than this setting value.
It might cause SER if generating tx command early in security mode.

Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220704023453.19935-6-pkshih@realtek.com
22 months agortw89: ser: leave lps with mutex
Zong-Zhe Yang [Mon, 4 Jul 2022 02:34:51 +0000 (10:34 +0800)]
rtw89: ser: leave lps with mutex

Calling rtw89_leave_lps() should hold rtwdev::mutex.
So, fix it.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220704023453.19935-5-pkshih@realtek.com
22 months agortw89: declare support HE HTC always
Ping-Ke Shih [Mon, 4 Jul 2022 02:34:50 +0000 (10:34 +0800)]
rtw89: declare support HE HTC always

Correct ability of HE HTC that both STA and AP mode can support.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220704023453.19935-4-pkshih@realtek.com
22 months agortw89: 8852a: update HW setting on BB
Zong-Zhe Yang [Mon, 4 Jul 2022 02:34:49 +0000 (10:34 +0800)]
rtw89: 8852a: update HW setting on BB

Sometimes, BB might encounter RX problem on OFDM 6M. It's not quite
easy to happen, but if it happens, we will keep getting stuck on RX.
And, since we cannot properly receive layer 2 ACK, it also casues TX
problem, e.g. constantly retrying TX. Eventually, after some time, we
would get disconnected due to abnormal behavior.

Update break setting and phy status parsing time to make BB get out
of stuck state faster.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220704023453.19935-3-pkshih@realtek.com