Bitterblue Smith [Wed, 31 Aug 2022 16:12:36 +0000 (19:12 +0300)]
wifi: rtl8xxxu: Fix skb misuse in TX queue selection
rtl8xxxu_queue_select() selects the wrong TX queues because it's
reading memory from the wrong address. It expects to find ieee80211_hdr
at skb->data, but that's not the case after skb_push(). Move the call
to rtl8xxxu_queue_select() before the call to skb_push().
Marek Vasut [Sat, 27 Aug 2022 02:49:03 +0000 (04:49 +0200)]
wifi: brcmfmac: add 43439 SDIO ids and initialization
Add HW and SDIO ids for use with the muRata 1YN (Cypress CYW43439).
Add the firmware mapping structures for the CYW43439 chipset.
The 43439 needs some things setup similar to the 43430 chipset.
Hans de Goede [Wed, 10 Aug 2022 14:23:33 +0000 (16:23 +0200)]
wifi: brcmfmac: Add DMI nvram filename quirk for Chuwi Hi8 Pro tablet
The Chuwi Hi8 Pro tablet contains quite generic names in the sys_vendor
and product_name DMI strings, without this patch brcmfmac will try to load:
"brcmfmac43430a0-sdio.Default string-Default string.txt" as nvram file
which is way too generic.
The Chuwi Hi8 Pro uses the same Ampak AP6212 module as the Chuwi Vi8 Plus
and the nvram for the Vi8 Plus is already in linux-firmware, so point
the new DMI nvram filename quirk to the Vi8 Plus nvram file.
Hans de Goede [Wed, 10 Aug 2022 14:23:28 +0000 (16:23 +0200)]
wifi: brcmfmac: Use ISO3166 country code and rev 0 as fallback on 43430
Many devices ship with a nvram ccode value of X2/XT/XU/XV/ALL which are
all special world-wide compatibility ccode-s. Most of these world-wide
ccode-s allow passive scan mode only for 2.4GHz channels 12-14,
only enabling them when an AP is seen on them.
Since linux-firmware has moved to the new cyfmac43430-sdio.bin +
cyfmac43430-sdio.clm_blob firmware files this no longer works and
43430 devices using e.g. an X2 ccode fail to connect to an AP on
channel 13.
Add the 43430 chip-id to the list of chips for which to use the ISO3166
country code + rev 0 as fallback in brcmf_translate_country_code() to
fix this.
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
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>
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>
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>
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>
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>
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>
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.
David S. Miller [Sun, 4 Sep 2022 10:24:34 +0000 (11:24 +0100)]
Merge tag 'wireless-next-2022-09-03' of git://git.kernel.org/pub/scm/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>
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>
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>
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>
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: 8020ebb801e6 ("wifi: mac80211: support MLO authentication/association with one link") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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>
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>
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>
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>
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.
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>
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
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: 8020ebb801e6 ("wifi: mac80211: support MLO authentication/association with one link") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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: 35b9a1bab426 ("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>
====================
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>
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>
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.
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>
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.
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.
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.
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.
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: 5cbf34525a82 ("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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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.
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: 08b253d81906 ("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
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.
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.
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.
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.
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.
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.
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.
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.
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
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