Johannes Berg [Mon, 27 Jun 2022 10:49:03 +0000 (12:49 +0200)]
wifi: cfg80211: remove chandef check in cfg80211_cac_event()
The current check only worked for AP mode, but we can do
radar detection in mesh as well (for example). We could
try to check this using wdev_chandef(), but we also don't
really care since the chandef is passed in and we have no
need to use it anymore (since we added the argument in
commit d2859df5e7f0 ("cfg80211/mac80211: DFS setup chandef
for cac event")).
Change-Id: I856e4344d5e64ff4d2eead0b4c53b11f264be9b8 Fixes: 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 27 Jun 2022 10:49:03 +0000 (12:49 +0200)]
wifi: nl80211: relax wdev mutex check in wdev_chandef()
In many cases we might get here from driver code that's
not really set up to care about the locking, and for the
non-MLO cases we really don't care so much about it. So
relax the checking here for now, perhaps we should even
remove it completely since we might not really care if
we point to an invalid link's chandef and can require
the caller to check the link validity first.
Fixes: 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 27 Jun 2022 10:43:37 +0000 (12:43 +0200)]
wifi: nl80211: hold wdev mutex for tid config
We need wdev_chandef() in this code, which now requires
the wdev mutex due to the per-link nature. Hold it here
to make sure we can access the link.
Reported-by: syzbot+b4e9aa0f32ffd9902442@syzkaller.appspotmail.com Fixes: 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 27 Jun 2022 10:36:03 +0000 (12:36 +0200)]
wifi: cfg80211: handle IBSS in channel switch
Prior to commit 7b0a0e3c3a88 ("wifi: cfg80211: do some
rework towards MLO link APIs") the interface type didn't
really matter here, but now we need to handle all of the
possible cases. Add IBSS ("ADHOC") and handle it.
Fixes: 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs") Reported-by: syzbot+90d912872157e63589e4@syzkaller.appspotmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 27 Jun 2022 10:28:31 +0000 (12:28 +0200)]
wifi: mac80211: properly skip link info driver update
If the interface isn't (yet) added to the driver, skip the
link info update. This was previously done for the BSS info
changes, but I forgot to copy the same check here.
Felix Fietkau [Sat, 25 Jun 2022 21:24:11 +0000 (23:24 +0200)]
wifi: mac80211: only accumulate airtime deficit for active clients
When a client does not generate any local tx activity, accumulating airtime
deficit for the round-robin scheduler can be harmful. If this goes on for too
long, the deficit could grow quite large, which might cause unreasonable
initial latency once the client becomes active
Felix Fietkau [Sat, 25 Jun 2022 21:24:09 +0000 (23:24 +0200)]
wifi: mac80211: add a per-PHY AQL limit to improve fairness
In order to maintain fairness, the amount of queueing needs to be limited
beyond the simple per-station AQL budget, otherwise the driver can simply
repeatedly do scheduling rounds until all queues that have not used their
AQL budget become eligble.
To be conservative, use the high AQL limit for the first txq and add half
of the low AQL for each subsequent queue.
Felix Fietkau [Sat, 25 Jun 2022 21:24:07 +0000 (23:24 +0200)]
wifi: mac80211: consider aql_tx_pending when checking airtime deficit
When queueing packets for a station, deficit only gets added once the packets
have been transmitted, which could be much later. During that time, a lot of
temporary unfairness could happen, which could lead to bursty behavior.
Fix this by subtracting the aql_tx_pending when checking the deficit in tx
scheduling.
The virtual time scheduler code has a number of issues:
- queues slowed down by hardware/firmware powersave handling were not properly
handled.
- on ath10k in push-pull mode, tx queues that the driver tries to pull from
were starved, causing excessive latency
- delay between tx enqueue and reported airtime use were causing excessively
bursty tx behavior
The bursty behavior may also be present on the round-robin scheduler, but there
it is much easier to fix without introducing additional regressions
wifi: mac80211: add a missing comma at kernel-doc markup
The lack of the colon makes it not parse the function parameter:
include/net/mac80211.h:6250: warning: Function parameter or member 'vif' not described in 'ieee80211_channel_switch_disconnect'
wifi: cfg80211: fix kernel-doc warnings all over the file
There are currently 17 kernel-doc warnings on this file:
include/net/cfg80211.h:391: warning: Function parameter or member 'bw' not described in 'ieee80211_eht_mcs_nss_supp'
include/net/cfg80211.h:437: warning: Function parameter or member 'eht_cap' not described in 'ieee80211_sband_iftype_data'
include/net/cfg80211.h:507: warning: Function parameter or member 's1g' not described in 'ieee80211_sta_s1g_cap'
include/net/cfg80211.h:1390: warning: Function parameter or member 'counter_offset_beacon' not described in 'cfg80211_color_change_settings'
include/net/cfg80211.h:1390: warning: Function parameter or member 'counter_offset_presp' not described in 'cfg80211_color_change_settings'
include/net/cfg80211.h:1430: warning: Enum value 'STATION_PARAM_APPLY_STA_TXPOWER' not described in enum 'station_parameters_apply_mask'
include/net/cfg80211.h:2195: warning: Function parameter or member 'dot11MeshConnectedToAuthServer' not described in 'mesh_config'
include/net/cfg80211.h:2341: warning: Function parameter or member 'short_ssid' not described in 'cfg80211_scan_6ghz_params'
include/net/cfg80211.h:3328: warning: Function parameter or member 'kck_len' not described in 'cfg80211_gtk_rekey_data'
include/net/cfg80211.h:3698: warning: Function parameter or member 'ftm' not described in 'cfg80211_pmsr_result'
include/net/cfg80211.h:3828: warning: Function parameter or member 'global_mcast_stypes' not described in 'mgmt_frame_regs'
include/net/cfg80211.h:4977: warning: Function parameter or member 'ftm' not described in 'cfg80211_pmsr_capabilities'
include/net/cfg80211.h:5742: warning: Function parameter or member 'u' not described in 'wireless_dev'
include/net/cfg80211.h:5742: warning: Function parameter or member 'links' not described in 'wireless_dev'
include/net/cfg80211.h:5742: warning: Function parameter or member 'valid_links' not described in 'wireless_dev'
include/net/cfg80211.h:6076: warning: Function parameter or member 'is_amsdu' not described in 'ieee80211_data_to_8023_exthdr'
include/net/cfg80211.h:6949: warning: Function parameter or member 'sig_dbm' not described in 'cfg80211_notify_new_peer_candidate'
Address them, in order to build a better documentation from this
header.
Ping-Ke Shih [Mon, 13 Jun 2022 06:51:44 +0000 (14:51 +0800)]
wifi: rtw89: 8852a: rfk: fix div 0 exception
The DPK is a kind of RF calibration whose algorithm is to fine tune
parameters and calibrate, and check the result. If the result isn't good
enough, it could adjust parameters and try again.
This issue is to read and show the result, but it could be a negative
calibration result that causes divisor 0 and core dump. So, fix it by
phy_div() that does division only if divisor isn't zero; otherwise,
zero is adopted.
TX BD (TX ring index) and TX WD (WiFi descriptor buffer) are freed
asynchronously. With burst packets, we free TX WD, but the corresponding
TX BD couldn't be freed yet. Then, TX can possibly get stuck due to no
more TX BD.
To avoid this, ignore reclaiming TX BD only if TX WD is no free space,
because at this moment TX BD must have some spaces. Otherwise, we reclaim
TX BD to resolve TX stuck issue.
Ping-Ke Shih [Fri, 10 Jun 2022 07:26:08 +0000 (15:26 +0800)]
wifi: rtw89: fix long RX latency in low power mode
In low power mode, regular IO is power off, so we don't schedule napi to
poll RX and TX completion. Therefore, calling ieee80211_rx_napi() with
napi instance causes long RX latency. To fix this, use NULL as argument,
and then it can use netif_receive_skb_list() to receive.
Ping-Ke Shih [Fri, 10 Jun 2022 07:26:07 +0000 (15:26 +0800)]
wifi: rtw89: drop invalid TX rate report of legacy rate
Somehow, firmware could report invalid TX rate, and we consider the
invalid rate as 0 that will make a wrong decision. So, drop invalid
reports, and also suppress the warning message.
Ping-Ke Shih [Fri, 10 Jun 2022 07:26:06 +0000 (15:26 +0800)]
wifi: rtw89: add UNEXP debug mask to keep monitor messages unexpected to happen frequently
Some warning messages could bother users. With proper handling, these
situations don't really affect usage, but we still need to keep monitor
these messages. If they happen frequently, we must review driver or
hardware design to clarify.
Kuan-Chung Chen [Fri, 10 Jun 2022 07:26:05 +0000 (15:26 +0800)]
wifi: rtw89: enable VO TX AMPDU
To improve VO throughput, we enable VO TX AMPDU.
We measure the latency of enable or disable VO TX AMPDU. The experimental
results show that the difference between the two is insignificant only
300µs, so the little impact can be ignored for user experience.
Moreover, we found some APs will have a group key handshake timeout issue
when the EAPOL's TID is already setup BA session. Therefore, when
transmitting EAPOL, if EAPOL's TID BA session is already setup, we need
to delete it.
Kuan-Chung Chen [Fri, 10 Jun 2022 07:26:04 +0000 (15:26 +0800)]
wifi: rtw89: fix potential TX stuck
The potential TX stuck occurs when there are lots of packets to be
transmitted and the boundary of the tx_resource is hit. Add this
patch to avoid the TX stuck when burst traffic.
Ping-Ke Shih [Fri, 10 Jun 2022 07:26:02 +0000 (15:26 +0800)]
wifi: rtw89: allocate BSSID CAM per TDLS peer
In STA mode, if peer is TDLS. Allocate a BSSID CAM entry with peer's
address to match address properly, and then hardware can ACK peer's
packets and receive packets to driver.
Ping-Ke Shih [Fri, 10 Jun 2022 07:26:01 +0000 (15:26 +0800)]
wifi: rtw89: separate BSSID CAM operations
Normally, we allocate a BSSID CAM to a vif. By hardware design, we must
allocate a BSSID CAM to each TDLS peer, so separate BSSID CAM operations
that will be used by later patches.
Alexey Kodanev [Wed, 8 Jun 2022 17:16:14 +0000 (20:16 +0300)]
wifi: iwlegacy: 4965: fix potential off-by-one overflow in il4965_rs_fill_link_cmd()
As a result of the execution of the inner while loop, the value
of 'idx' can be equal to LINK_QUAL_MAX_RETRY_NUM. However, this
is not checked after the loop and 'idx' is used to write the
LINK_QUAL_MAX_RETRY_NUM size array 'lq_cmd->rs_table[idx]' below
in the outer loop.
The fix is to check the new value of 'idx' inside the nested loop,
and break both loops if index equals the size. Checking it at the
start is now pointless, so let's remove it.
Veerendranath Jakkam [Wed, 8 Jun 2022 09:16:37 +0000 (14:46 +0530)]
cfg80211: Indicate MLO connection info in connect and roam callbacks
The MLO links used for connection with an MLD AP are decided by the
driver in case of SME offloaded to driver.
Add support for the drivers to indicate the information of links used
for MLO connection in connect and roam callbacks, update the connected
links information in wdev from connect/roam result sent by driver.
Also, send the connected links information to userspace.
Add a netlink flag attribute to indicate that userspace supports
handling of MLO connection. Drivers must not do MLO connection when this
flag is not set. This is to maintain backwards compatibility with older
supplicant versions which doesn't have support for MLO connection.
Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 13 Jun 2022 14:52:02 +0000 (16:52 +0200)]
wifi: nl80211: expose link ID for associated BSSes
When retrieving scan data, expose not just whether or not the
interface (possibly an MLD) is associated to the BSS or not,
but also on which link ID if it is an MLD.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Shaul Triebitz [Mon, 6 Jun 2022 17:03:17 +0000 (20:03 +0300)]
wifi: mac80211_hwsim: send a beacon per link
Add to hwsim a link_data structure.
For now, move the beacon interval and beacon timer to
the link_data structure (making them per link).
Set a beacon timer for each link and transmit a per
link beacon (pass the link_id to ieee80211_beacon_get).
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 14 Jun 2022 11:07:42 +0000 (13:07 +0200)]
wifi: mac80211: maintain link-sta hash table
Maintain a hash table of link-sta addresses so we can find
them for management frames etc. where addresses haven't
been replaced by the drivers to the MLD address yet.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 15 Jun 2022 07:20:45 +0000 (09:20 +0200)]
wifi: mac80211: RCU-ify link STA pointers
We need to be able to access these in a race-free way under
traffic while adding/removing them, so RCU-ify the pointers.
This requires passing a link_sta to a lot of functions so
we don't have to do the RCU handling everywhere.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Shaul Triebitz [Wed, 1 Jun 2022 09:55:14 +0000 (12:55 +0300)]
wifi: mac80211: use link in start/stop ap
Use link and link_conf according to the link_id
provided by cfg in start_ap/stop_ap and change_beacon.
Also use them in the functions called by them.
Note that for a non MLD device, the link_id is 0,
and link[0] and link_conf[0] equal to deflink and
bss_conf respectively (what was there before).
Also, call vif_info_change for BSS related changes (SSID), and
link_info_change for LINK related changes (instead of the
legacy bss_info_change).
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 10 Jun 2022 09:21:21 +0000 (11:21 +0200)]
wifi: mac80211: implement add/del interface link callbacks
When a link is added or removed via nl80211, these are
called. Implement them so we don't have to check in all
the different per-link commands whether we've already
created the necessary datastructures.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 10 Jun 2022 09:07:55 +0000 (11:07 +0200)]
wifi: cfg80211: add optional link add/remove callbacks
Add some optional callbacks for link add/remove so that
drivers can react here. Initially, I thought it would be
sufficient to just create the link in start_ap etc., but
it turns out that's not so simple, since there are quite
a few callbacks that can be called: if they're erroneously
without start_ap, things might crash.
Thus it might be easier for drivers to allocate all the
necessary data structures immediately, to not have to
worry about it in each callback, since cfg80211 checks
that the link ID is valid (has been added.)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 31 May 2022 21:20:08 +0000 (23:20 +0200)]
wifi: mac80211: add sta link addition/removal
Add the necessary infrastructure, including a new driver
method, to add/remove links to/from a station. To do this,
refactor the link alloc/free a bit, splitting that so we
can do it without linking them, to handle failures better.
Note that a station entry must be created representing an
MLD or a non-MLD STA, it cannot change between the two.
When representing an MLD, the 'deflink' is used for the
first link, which might be removed later, in which case
the memory isn't reused.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 9 Jun 2022 20:05:07 +0000 (22:05 +0200)]
wifi: mac80211: add MLO link ID to TX frame metadata
Take a few bits out of the control.flags to add the link ID
to TX frame metadata, so drivers don't need to look it up
by the address themselves. Implement that lookup where it's
needed, for internal frame TX, and set it to "unspecified"
for data transmissions.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 1 Jun 2022 13:59:31 +0000 (15:59 +0200)]
wifi: mac80211: remove band from TX info in MLO
If the interface is an MLD, then we don't know which band
the frame will be transmitted on, and we don't know how to
look up the band. Set the band information to zero in that
case, the driver cannot rely on it anyway.
No longer inline ieee80211_tx_skb_tid() since it's even
bigger now.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 31 May 2022 21:20:08 +0000 (23:20 +0200)]
wifi: mac80211: add vif link addition/removal
Add the necessary infrastructure, including a new driver
method, to add/remove links to/from an interface.
Also add the missing link address to bss_conf (which we
use as link_conf too), and fill it, in station mode for
now just randomly, in AP mode we get the address from
cfg80211 since the link must be created with an address
first.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 31 May 2022 17:48:33 +0000 (19:48 +0200)]
wifi: nl80211: support MLO in auth/assoc
For authentication, we need the BSS, the link_id and the AP
MLD address to create the link and station, (for now) the
driver assigns a link address and sends the frame, the MLD
address needs to be the address of the interface.
For association, pass the list of BSSes that were selected
for the MLO connection, along with extra per-STA profile
elements, the AP MLD address and the link ID on which the
association request should be sent.
Note that for now we don't have a proper way to pass the link
address(es) and so the driver/mac80211 will select one, but
depending on how that selection works it means that assoc w/o
auth data still being around (mac80211 implementation detail)
the association won't necessarily work - so this will need to
be extended in the future to sort out the link addressing.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 31 May 2022 16:31:19 +0000 (18:31 +0200)]
wifi: nl80211: refactor BSS lookup in nl80211_associate()
For MLO we'll need to do this multiple times, so refactor
this. For now keep the disconnect_bssid, but we'll need to
figure out how to handle that with MLD.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 31 May 2022 16:00:00 +0000 (18:00 +0200)]
wifi: cfg80211: mlme: get BSS entry outside cfg80211_mlme_assoc()
Today it makes more sense to pass the necessary parameters to
look up the BSS entry to cfg80211_mlme_assoc(), but with MLO
we will need to look up multiple, and that gets awkward. Pull
the lookup code into the callers so we can change it better.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In ieee80211_build_hdr() we do the same thing for all
interface types except for AP_VLAN, but we can simplify
the code by pulling the common thing in front of the
switch and overriding it for AP_VLAN. This will also
simplify the code for MLD here later.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 1 Jun 2022 12:16:00 +0000 (14:16 +0200)]
wifi: mac80211: status: look up band only where needed
For MLD, we might eventually not really know the band on status,
but some code assumes it's there. Move the sband lookup deep to
the code that actually needs it, to make it clear where exactly
it's needed and for what purposes.
For rate control, at least initially we won't support it in MLO,
so that won't be an issue.
For TX monitoring, we may have to elide the rate and/or rely on
ieee80211_tx_status_ext() for rate information.
This also simplifies the function prototypes.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 31 May 2022 21:06:19 +0000 (23:06 +0200)]
wifi: mac80211: sort trace.h file
This used to be sorted by driver methods, APIs and internal
functions, but got added to in the wrong sections. Fix that
by ordering the file properly again.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 30 May 2022 21:01:50 +0000 (23:01 +0200)]
wifi: mac80211: refactor some link setup code
We don't need to setup lists and work structs every time
we switch the interface type, factor that out into a new
ieee80211_link_init() function and use it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 30 May 2022 20:52:14 +0000 (22:52 +0200)]
wifi: mac80211: validate some driver features for MLO
If MLO is enabled by the driver then validate a set of
capabilities that mac80211 will initially not support
in MLO. This might change if features are implemented.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 30 May 2022 16:35:23 +0000 (18:35 +0200)]
wifi: mac80211: make channel context code MLO-aware
Make the channel context code MLO aware, along with some
functions that it uses, so that the chan.c file is now
MLD-clean and no longer uses deflink/bss_conf/etc.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add pointers so we can start using link_id throughout the
code, even if for now only link ID 0 is valid, pointing
to the "built-in" bss_conf, which is used by drivers that
are not aware of MLD.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 24 May 2022 08:55:56 +0000 (10:55 +0200)]
wifi: mac80211: split bss_info_changed method
Split the bss_info_changed method to vif_cfg_changed and
link_info_changed, with the latter getting a link ID.
Also change the 'changed' parameter to u64 already, we
know we need that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Mon, 16 May 2022 13:00:15 +0000 (15:00 +0200)]
wifi: mac80211: reorg some iface data structs for MLD
Start reorganizing interface related data structures toward
MLD. The most complex part here is for the keys, since we
have to split the various kinds of GTKs off to the link but
still need to use (for WEP) the other keys as a fallback
even for multicast frames.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 10 May 2022 15:05:04 +0000 (17:05 +0200)]
wifi: mac80211: move interface config to new struct
We'll use bss_conf for per-link configuration later, so
move out all the non-link-specific data out into a new
struct ieee80211_vif_cfg used in the vif.
Some adjustments were done with the following spatch:
Johannes Berg [Thu, 14 Apr 2022 14:50:57 +0000 (16:50 +0200)]
wifi: cfg80211: do some rework towards MLO link APIs
In order to support multi-link operation with multiple links,
start adding some APIs. The notable addition here is to have
the link ID in a new nl80211 attribute, that will be used to
differentiate the links in many nl80211 operations.
So far, this patch adds the netlink NL80211_ATTR_MLO_LINK_ID
attribute (as well as the NL80211_ATTR_MLO_LINKS attribute)
and plugs it through the system in some places, checking the
validity etc. along with other infrastructure needed for it.
For now, I've decided to include only the over-the-air link
ID in the API. I know we discussed that we eventually need to
have to have other ways of identifying a link, but for local
AP mode and auth/assoc commands as well as set_key etc. we'll
use the OTA ID.
Also included in this patch is some refactoring of the data
structures in struct wireless_dev, splitting for the first
time the data into type dependent pieces, to make reasoning
about these things easier.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 19 May 2022 15:57:53 +0000 (17:57 +0200)]
wifi: mac80211: reject WEP or pairwise keys with key ID > 3
We don't really care too much right now since our data
structures are set up to not have a problem with this,
but clearly it's wrong to accept WEP and pairwise keys
with key ID > 3.
However, with MLD we need to split into per-link (GTK,
IGTK, BIGTK) and per interface/MLD (including WEP) keys
so make sure this is not a problem.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Casper Andersson [Tue, 14 Jun 2022 09:25:32 +0000 (11:25 +0200)]
net: sparx5: Allow mdb entries to both CPU and ports
Allow mdb entries to be forwarded to CPU and be switched at the same
time. Only remove entry when no port and the CPU isn't part of the group
anymore.
Signed-off-by: Casper Andersson <casper.casan@gmail.com> Acked-by: Steen Hegelund <Steen.Hegelund@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
bcm63xx_enet: switch to napi_build_skb() to reuse skbuff_heads
napi_build_skb() reuses NAPI skbuff_head cache in order to save some
cycles on freeing/allocating skbuff_heads on every new Rx or completed
Tx.
Use napi_consume_skb() to feed the cache with skbuff_heads of completed
Tx so it's never empty.
Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Casper Andersson [Tue, 14 Jun 2022 06:32:23 +0000 (08:32 +0200)]
net: bridge: allow add/remove permanent mdb entries on disabled ports
Adding mdb entries on disabled ports allows you to do setup before
accepting any traffic, avoiding any time where the port is not in the
multicast group.
Signed-off-by: Casper Andersson <casper.casan@gmail.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Lorenzo Bianconi [Mon, 13 Jun 2022 16:51:50 +0000 (09:51 -0700)]
i40e: add xdp frags support to ndo_xdp_xmit
Add the capability to map non-linear xdp frames in XDP_TX and ndo_xdp_xmit
callback.
Tested-by: Sarkar Tirthendu <tirthendu.sarkar@intel.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Add basic description for the xilinx emaclite driver DT bindings.
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
The first patch in this series makes the name used for variables
representing a TRE ring be consistent everywhere. The second
renames two structure fields to better represent their purpose.
The last four rework a little code that manages some tranaction and
byte transfer statistics maintained mainly for TX endpoints. For
the most part this series is refactoring. The last one also
includes the first step toward no longer assuming an event ring is
dedicated to a single channel.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Mon, 13 Jun 2022 17:17:59 +0000 (12:17 -0500)]
net: ipa: rework gsi_channel_tx_update()
Rename gsi_channel_tx_update() to be gsi_trans_tx_completed(), and
pass it just the transaction pointer, deriving the channel from the
transaction. Update the comments above the function to provide a
more concise description of how statistics for TX endpoints are
maintained and used.
Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Mon, 13 Jun 2022 17:17:58 +0000 (12:17 -0500)]
net: ipa: stop counting total RX bytes and transactions
In gsi_evt_ring_rx_update(), we update each transaction so its len
field reflects the actual number of bytes received. In the process,
the total number of transactions and bytes processed on the channel
are summed, and added to a running total for the channel.
But we don't actually use those running totals for RX endpoints.
They're maintained for TX channels to support CoDel when they are
associated with a "real" network device.
So stop maintaining these totals for RX endpoints, and update the
comment where the fields are defined to make it clear they're only
valid for TX channels.
Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Mon, 13 Jun 2022 17:17:57 +0000 (12:17 -0500)]
net: ipa: simplify TX completion statistics
When a TX request is issued, its channel's accumulated byte and
transaction counts are recorded. This currently does *not* take
into account the transaction being committed.
Later, when the transaction completes, the number of bytes and
transactions that have completed since the transaction was committed
are reported to the network stack. The transaction and its byte
count are accounted for at that time.
Instead, record the transaction and its bytes in the counts recorded
at commit time. This avoids the need to do so when the transaction
completes, and provides a (small) simplification of that code.
Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Mon, 13 Jun 2022 17:17:55 +0000 (12:17 -0500)]
net: ipa: rename two transaction fields
There are two fields in a GSI transaction that keep track of TRE
counts. The first represents the number of TREs reserved for the
transaction in the TRE ring; that's currently named "tre_count".
The second is the number of TREs that are actually *used* by the
transaction at the time it is committed.
Rename the "tre_count" field to be "rsvd_count", to make its meaning
a little more specific. The "_count" is present in the name mainly
to avoid interpreting it as a reserved (not-to-be-used) field. This
name also distinguishes it from the "tre_count" field associated
with a channel.
Rename the "used" field to be "used_count", to match the convention
used for reserved TREs.
Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Mon, 13 Jun 2022 17:17:54 +0000 (12:17 -0500)]
net: ipa: use "tre_ring" for all TRE ring local variables
All local variables that represent event rings are named "ring".
All but two functions that represent a channel's TRE ring with a
local variable use the name "tre_ring". For consistency, use that
name in the two functions that don't fit the pattern.
Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Wed, 15 Jun 2022 05:35:18 +0000 (22:35 -0700)]
Merge branch 'support-mt7531-on-bpi-r2-pro'
Frank Wunderlich says:
====================
Support mt7531 on BPI-R2 Pro
This Series add Support for the mt7531 switch on Bananapi R2 Pro board.
This board uses port5 of the switch to conect to the gmac0 of the
rk3568 SoC.
Currently CPU-Port is hardcoded in the mt7530 driver to port 6.
Compared to v1 the reset-Patch was dropped as it was not needed and
CPU-Port-changes are completely rewriten based on suggestions/code from
Vladimir Oltean (many thanks to this).
In DTS Patch i only dropped the status-property that was not
needed/ignored by driver.
Due to the Changes i also made a regression test on mt7623 bpi-r2
(mt7623 soc + mt7530) and bpi-r64 (mt7622 soc + mt7531) with cpu-
port 6. Tests were done directly (ipv4 config on dsa user port)
and with vlan-aware bridge including vlan that was tagged outgoing
on dsa user port.
====================
projects / users / hch / misc.git / log