When P2P roc is removed, the IWL_MVM_STATUS_NEED_FLUSH_P2P bit is set
to indicate to iwl_mvm_roc_done_wk() that the removed roc is a P2P
one, so it will flush the broadcast station and not the aux station.
However, since setting this bit and scheduling the worker is done
in roc ended flow as well as in case the roc is removed, there is
a race where the worker has already started running (but did not
test this bit yet) and then it is scheduled again. In this case,
the first run of the worker will clear this bit, and thus the second
run will find it already cleared and will try to flush and remove
the aux station by mistake.
Fix it by scheduling the worker only if this bit is not yet set. In
case this bit is already set, the worker is either running or
scheduled, so there is no need to re-schedule it.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210819183728.8c147659b331.If5924375e9bfd46214ab8ab81cb9d0f5c82fbcbc@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The debug dump ranges aren't just an array of such ranges
since each range has a variable size. Therefore, the use
of a struct array is misleading at best.
Change it to be a u8 data[] instead of the struct array,
the code doesn't significantly change since it's actually
doing things correctly now.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210819183728.693c9891097d.Idcaab1fd659e8be2f56be647b2534befd61a4460@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
We don't use this, but we embed this struct elsewhere and
having structs with flexible arrays embedded isn't quite
right, with sparse (for example) complaining. Remove the
data[] member in this case.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210819183728.72ca1232b27c.I6ec766691b89670e1683f9fc0fbd12648309a574@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
DMA-API debug code pointed out that in this code path we
never check the return value of dma_map_page(), which could
fail.
However, we don't really even want to unmap/remap, we just
want to ensure that we can actually access the last version
of the data that the (now-dead) device may have written, so
only need to dma_sync_single_for_cpu() instead.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210819183728.5987f35883a2.I2d9ea5ecc69a5e5947b546fb15f33363a0595651@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
We used to load the regdomain only in the load stage,
this caused the 'iw phy phy0 reg get' command to fail if we
booted a machine with wifi off.
Therefor we should load it in INIT stage already.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805141826.a6077801d7d5.I7d8d5c895bc467efbf81ea055dde366ea01cced1@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
We used to read the PPAG, WRDS, EWRD, WGDS tables from ACPI
in the load stage only. This prevented vendor commands from
being executed before bringing the interface up. Move reading those tables
to INIT stage.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805141826.ce3b60f0b426.I3643bf00e714aae930880cc7d6cf390b142eaccb@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
In commit 79f033f6f2 ("iwlwifi: dbg: don't limit dump decisions
to all or monitor") we changed the code to pass around a bitmap,
but in the monitor_only case, one place accidentally used the bit
number, not the bit mask, resulting in CSR and FW_INFO getting
dumped instead of monitor data. Fix that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805141826.774fd8729a33.Ic985a787071d1c0b127ef0ba8367da896ee11f57@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
By mistake we were considering the first element of the WTAS wifi
package as part of the data we want to rid, but that element is the wifi
package signature (always 0x07), so it should be skipped.
Change the code to read the data starting from element 1 instead.
Signed-off-by: Abhishek Naik <abhishek.naik@intel.com>
Fixes: 28dd7ccdc5 ("iwlwifi: acpi: read TAS table from ACPI and send it to the FW")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805141826.ff8148197b15.I70636c04e37b2b57a5df3ce611511f62203d27a7@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The new version of the command has same size and layout as
version 10. It just sends corresponding station id in one
of the reserved fields. It's not used in the driver, so just
be ready to accept version 11.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805141826.0a387598eef1.I3be0bbf603ef95c644218be8a12b329411f11646@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The GEO profiles have been stored in single-dimension arrays and the
access has been done via a single index. We will soon need to support
different revisions of this table, which will make the flat array even
harder to handle. To prepare for that, convert the single-dimension
array to a struct with substructures.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805141826.56f3506411a2.I600ed3708d19f2263a5a8d143f6711d08499bbb0@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Change the SAR profile tables storage to revision 2 regardless of the
revision we read from ACPI. Revision 2 is a superset of revision 1,
which is in turn a superset of revision 0, so they can all be stored
inside revision 2.
Add support for reading and storing also revisions 1 and 2, whose only
difference is the number of chains and number of sub-bands. So most
of the code revolves around passing different chain and sub-band
sizes.
With this patch we still pass only revision 0 to the firmware, but
that will be changed in a separate patch.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805141826.2edad09415c8.I36297aef90a9ec6a3ea1bf1a151a62f272826d59@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This definition was only used to pass the size of the tables in the FW
API to the iwl_sar_select_profile() function, but we should actually
pass the definition from the FW API file. We don't have the concept
of tables in the ACPI definition, so we can remove it.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805130823.00b5084be918.I18efb3c45bffacfa9a356c2c8d34e5ffbb3eb423@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The SAR profiles have been stored in single-dimension arrays and the
access has been done via a single index. We will soon need to support
different revisions of this table, which will make the flat array even
harder to handle. To prepare for that, convert the single-dimension
array to a struct with substructures.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805130823.01530088097f.I903c236a574c7e4c0fc4db101fc39c0f5415ca43@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
- Short SSIDs should always be added for direct SSIDs included
in the scan request. However, this was not done in case that
information for collocated APs was included. Fix this.
- With the above fix, if the FW also supports discovery of hidden
APs over the 6GHz band, also set the corresponding full SSID
information.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805130823.02512b7a1443.Ibb023b09b86179ed049a195f4e32e887c2f4971d@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When a station is removed, the driver-mac80211 station mapping is removed
before the station is actually deleted from the FW. As a result, it is
reasonable that the FW will continue to pass frames although the driver
doesn't have a station for them anymore. Thus change the message
severity level from ERR to DEBUG_DROP.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805130823.a751177743c6.I5607504dade88ba461508643f58390dd661c05ba@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
In later firmware we haven't needed the TSC anyway since
we have it already (and firmware image doesn't change),
but the new version adds the ability to send down replay
counters for more than one GTK. Implement that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805130823.28cd065e8c4a.Ic8406a78ee46b07e0ca1b8199522ef08ec6eef53@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Now that only reprogramming is left in the initial key iteration,
skip it entirely on unified firmware images instead of skipping
only the command sending inside of it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805130823.c6f77325c430.I798ce9d757492a9e3d223c1de5d4e62ebbc00b2c@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
If we're sending the KEK/KCK data we also need the GTK and
IGTK type, add a separate key iteration for that so we can
make the configure_key iteration optional later.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805130823.c99f86423702.Icf7d4e93be77ea05a80235d01851ad0155593de9@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
We do a key iteration to program the keys, and while at it
we also collect the data necessary for TKIP. This code has
all kinds of dependencies on the firmware API though, so
take out the TKIP phase 1 key generation and do that in a
separate key iteration only if necessary.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210805130823.80721fc0fd61.I5a8fbba4e3a9606f700ee41c7a4244dd5e2af935@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Both 'iwl_scan_probe_params_v3' and 'iwl_scan_probe_params_v4'
wrongly addressed the 'bssid_array' field which should supposed
to be any array of BSSIDs each of size ETH_ALEN and not the
opposite. Fix it.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802215208.04146f24794f.I90726440ddff75013e9fecbe9fa1a05c69e3f17b@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Device startup changed in Bz, some register bits moved around.
Change the code accordingly.
The new Bz hardware changes also the way we wake it (grab NIC
access) and the way we disable bus mastering, update the driver
code accordingly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802215208.00a137364a95.I059a2abac948965458862941ee7db6a2e1076fa6@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
On Bz devices, the MAC address CSRs changed from 0x380 to 0x30.
Change the boolean configuration "mac_addr_from_csr" to hold the
base address instead, and set it correctly for the different
devices using this feature.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802215208.928c7983f014.Ic5ba92d98946c1b4640280a05dcfd75119c0f0c0@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
There's no need for all the complicated conditions here, any
bufferable MMPDUs or MMPDUs for client interfaces are already
coming through the TXQ interface, not iwl_mvm_mac_tx().
Simplify the logic.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802172232.3939f7c5c43a.I1d5cb5262e31a000023d79acbb897b8db50adf0d@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Since switching to mac80211 TXQs, we no longer need to
advertise more hardware queues than ACs, since we don't
even set QUEUE_CONTROL anyway, so the vif->hw_queue[]
mapping array won't be used.
All we need (at least for now) is for hw->queues to
indicate that we have enough queues to handle QoS.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802172232.80611a3c1ee7.I8a3d2b269421b6d8bada8c12cce3e095e6cfaeed@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When TVQM is enabled (iwl_mvm_has_new_tx_api() is true), then
queue numbers are just sequentially assigned 0, 1, 2, ...
Prior to TVQM, in DQA, there were some statically allocated
queue numbers:
* IWL_MVM_DQA_AUX_QUEUE == 1,
* both IWL_MVM_DQA_INJECT_MONITOR_QUEUE and
IWL_MVM_DQA_P2P_DEVICE_QUEUE == 2, and
* IWL_MVM_DQA_AP_PROBE_RESP_QUEUE == 9.
Now, these values are assigned to the members mvm->aux_queue,
mvm->snif_queue, mvm->probe_queue and mvm->p2p_dev_queue by
default. Normally, this doesn't really matter, and if TVQM is
in fact available we override them to the real values after
allocating a queue for use there.
However, this allocation doesn't always happen. For example,
for mvm->p2p_dev_queue (== 2) it only happens when the P2P
Device interface is started, if any. If it's not started, the
value in mvm->p2p_dev_queue remains 2. This wouldn't really
matter all that much if it weren't for iwl_mvm_is_static_queue()
which checks a queue number against one of those four static
numbers.
Now, if no P2P Device or monitor interface is added then queue
2 may be dynamically allocated, yet alias mvm->p2p_dev_queue or
mvm->snif_queue, and thus iwl_mvm_is_static_queue() erroneously
returns true for it. If it then gets full, all interface queues
are stopped, instead of just backpressuring against the one TXQ
that's really the only affected one.
This clearly can lead to issues, as everything is stopped even
if just a single TXQ filled its corresponding HW queue, if it
happens to have an appropriate number (2 or 9, AUX is always
reassigned.) Due to a mac80211 bug, this also led to a situation
in which the queues remained stopped across a deauthentication
and then attempts to connect to a new AP started failing, but
that's fixed separately.
Fix all of this by simply initializing the queue numbers to
the invalid value until they're used, if TVQM is enabled, and
also setting them back to that value when the queues are later
freed again.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802172232.2e47e623f9e2.I9b0830dafbb68ef35b7b8f0f46160abec02ac7d0@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The firmware SMPS request should only be honoured if the
connection is currently with HE and on 160 MHz, so check
that and then potentially reapply any request if the BW
changes.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802172232.0cdcac5660da.I9ee7956fd4f48399855d1f97728bc58b36caf112@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When installing a (new) key, set the replay counter so that
after FW restart the firmware has the correct value of the
replay counters.
This doesn't have a large effect - for frames that reach
the driver, it will do a replay check, and when installing
a new key, the counter is normally zero to start with (not
for GTK though, if joining the BSS for the first time).
Since this only affects frames handled entirely by the FW,
and that's restricted to a few unicast management frames,
the only affect here is for those after a firmware restart.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802172232.1cedf2ca7bb6.I2e609c28eaa301436e6740f4f1beca838f69a96a@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
EAPOL failure results in deauthentication with various reasons, not
related to AUTH failure specifically, so we just merge AUTH failure
with failed to assoc to AP.
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802172232.2ff350d85eab.I02c5b5d29c0d5c2e014bd1081b07ed33772ae04d@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Add support for discovery of hidden networks on the 6GHz band,
by including the scan request direct SSIDs in the FW scan request
command:
- In case a short SSID matches one of the direct SSIDs in the scan
request command, add the matching SSID in the same offset in the
'direct_ssids' array.
- Otherwise, add the SSID in one of the available slots.
Additionally, as a preparation to handle hidden APs, refactor
iwl_mvm_umac_scan_cfg_channels_v6_6g() the function.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802170640.ffb540a70212.Ia2bb9bc9435b833820bcc7dc30adcedb5a5a9869@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The scan request processing populated the direct SSIDs
in the FW scan request command also for 6GHz scan, which is not
needed and might result in unexpected behavior.
Fix the code to add the direct SSIDs only in case the scan
is not a 6GHz scan.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802170640.f465937c7bbf.Ic11a1659ddda850c3ec1b1afbe9e2b9577ac1800@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
If the firmware crashes while we're waiting for the reset
handshake then it cannot possibly make progress anymore,
and we will just time out the wait. That's pointless, so
just stop waiting at that point.
Additionally, if it never acknowledges the reset handshake,
something went wrong.
Dump an error in both of these cases, but we need to do it
synchronously here since the device will be turned off.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802170640.8b6a33544b4b.I55f97f70f8efa64db064a9207177a094c60ac8f1@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When switching op-modes, or more generally when reconfiguring,
we might switch the RB size. In _iwl_pcie_rx_init() we have a
comment saying we must free all RBs since we might switch the
size, but this is actually too late: the switch has been done
and we'll free the buffers with the wrong size.
Fix this by always freeing the buffers, if any, at the start
of configure, instead of only after the size may have changed.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802170640.42d7c93279c4.I07f74e65aab0e3d965a81206fcb289dc92d74878@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
On 64-bit machines, struct iwl_rx_mem_buffer has a lot of
padding due to the use of pointers after the small items.
Move the list entry before them, and while at it also add
documentation for it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802170640.6a62255b3df0.I47bb36530a3c2cdbd73454c796ce608ee2a32a6c@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
If the firmware crashes while we're already shutting down
the system, there isn't much we can do since the shutdown
process is continuing and we wanted to do that. Don't do
a FW restart, with the implied debug collection, in this
case.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210802170640.43a7351ae6bd.I164d48ce4379accf76ea0637983fd946d52dc6f5@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This reverts commit ce78ffa3ef.
Wren and Nicolas reported that ath11k was failing to initialise QCA6390
Wi-Fi 6 device with error:
qcom_mhi_qrtr: probe of mhi0_IPCR failed with error -22
Commit ce78ffa3ef ("net: really fix the build..."), introduced in
v5.14-rc5, caused this regression in qrtr. Most likely all ath11k
devices are broken, but I only tested QCA6390. Let's revert the broken
commit so that ath11k works again.
Reported-by: Wren Turkal <wt@penguintechs.org>
Reported-by: Nicolas Schichan <nschichan@freebox.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210826172816.24478-1-kvalo@codeaurora.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently, when query PFC configuration by dcbtool, driver will return
PFC enable status based on TC. As all priorities are mapped to TC0 by
default, if TC0 is enabled, then all priorities mapped to TC0 will be
shown as enabled status when query PFC setting, even though some
priorities have never been set.
for example:
$ dcb pfc show dev eth0
pfc-cap 4 macsec-bypass off delay 0
prio-pfc 0:off 1:off 2:off 3:off 4:off 5:off 6:off 7:off
$ dcb pfc set dev eth0 prio-pfc 0:on 1:on 2:on 3:on
$ dcb pfc show dev eth0
pfc-cap 4 macsec-bypass off delay 0
prio-pfc 0:on 1:on 2:on 3:on 4:on 5:on 6:on 7:on
To fix this problem, just returns user's PFC config parameter saved in
driver.
Fixes: cacde272dd ("net: hns3: Add hclge_dcb module for the support of DCB feature")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The GRO configuration is enabled by default after reset. This
is incorrect and should be restored to the user-configured value.
So this restoration is added during reset initialization.
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently, the cmd index is obtained in debugfs by comparing file names.
However, this method may cause errors when processing more complex file
names. So, change this method by saving cmd in private data and comparing
it when getting cmd index in debugfs for optimization.
Fixes: 5e69ea7ee2 ("net: hns3: refactor the debugfs process")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
VLAN list should not be added duplicate VLAN node, otherwise it would
cause "add failed" when restore VLAN from VLAN list, so this patch adds
VLAN ID check before adding node into VLAN list.
Fixes: c6075b1934 ("net: hns3: Record VF vlan tables")
Signed-off-by: Guojia Liao <liaoguojia@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In bond 4, when the link goes down and up repeatedly, the bond may get an
unknown speed, and then this port can not work.
The driver notify netif_carrier_on() before update the link state, when the
bond receive carrier on, will query the speed of the port, if the query
operation happens before updating the link state, will get an unknown
speed. So need to notify netif_carrier_on() after update the link state.
Fixes: 46a3df9f97 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Fixes: e2cb1dec97 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
After the cmdq registers are cleared, the firmware may take time to
clear out possible left over commands in the cmdq. Driver must release
cmdq memory only after firmware has completed processing of left over
commands.
Fixes: 232d0d55fc ("net: hns3: uninitialize command queue while unloading PF driver")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If a PF is bonded to a virtual machine and the virtual machine exits
unexpectedly, some hardware resource cannot be cleared. In this case,
loading driver may cause exceptions. Therefore, the hardware resource
needs to be cleared when the driver is loaded.
Fixes: 46a3df9f97 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
LiteX is a soft system-on-chip that targets FPGAs. LiteETH is a basic
network device that is commonly used in LiteX designs.
The driver was first written in 2017 and has been maintained by the
LiteX community in various trees. Thank you to all who have contributed.
Co-developed-by: Gabriel Somlo <gsomlo@gmail.com>
Co-developed-by: David Shah <dave@ds0.me>
Co-developed-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Tested-by: Gabriel Somlo <gsomlo@gmail.com>
Reviewed-by: Gabriel Somlo <gsomlo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This adds a function for what has been magic register writes so far.
It's based on recent changes to vendor drivers r8101, r8168, r8125,
and deals with events that trigger an early ASPM L1 exit.
Description of the bits has been kindly provided by Realtek.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If otx2_mbox_get_rsp() fails, otx2_set_flowkey_cfg() need return an
error code.
Fixes: e793836545 ("octeontx2-pf: Fix algorithm index in MCAM rules with RSS action")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Traffic schedules can only be started up to eight seconds within the
future. Therefore, the driver periodically checks every two seconds whether the
admin base time provided by the user is inside that window. If so the schedule
is started. Otherwise the check is deferred.
However, according to the programming manual the look ahead window size should
be four - not eight - seconds. By using the proposed value of four seconds
starting a schedule at a specified admin base time actually works as expected.
Fixes: 24dfc6eb39 ("net: dsa: hellcreek: Add TAPRIO offloading support")
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently the gate control list which is programmed into the hardware is
incorrect resulting in wrong traffic schedules. The problem is the loop
variables are incremented before they are referenced. Therefore, move the
increment to the end of the loop.
Fixes: 24dfc6eb39 ("net: dsa: hellcreek: Add TAPRIO offloading support")
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When adapter init fails, the blocked freelist bitmap is already freed
up and should not be touched. So, move the bitmap zeroing closer to
where it was successfully allocated. Also handle adapter init failure
unwind path immediately and avoid setting up RDMA memory windows.
Fixes: 5b377d114f ("cxgb4: Add debugfs facility to inject FL starvation")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure we go into PROMISC mode when we have too many
filters by specifically counting the filters that successfully
get saved to the firmware.
The device advertises max_ucast_filters and max_mcast_filters,
but really only has max_ucast_filters slots available for
uc and mc filters combined.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
The filter counting in ionic_lif_addr() really isn't useful,
and potentially misleading, especially when we're checking in
ionic_lif_rx_mode() to see if we need to go into PROMISC mode.
We can safely refactor this and remove a calling layer.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
In order to separate the atomic needs of __dev_uc_sync()
and __dev_mc_sync() from the safe rx_mode handling, we need
to have the ndo handler manipulate the driver's filter list,
and later have the driver sync the filters to the firmware,
outside of the atomic context.
Here we put __dev_mc_sync() and __dev_uc_sync() back into the
ndo callback to give them their netif_addr_lock context and
have them update the driver's filter list, flagging changes
that should be made to the device filter list. Later, in the
rx_mode handler, we read those hints and sync up the device's
list as needed.
It is possible for multiple add/delete requests to come from
the stack before the rx_mode task processes the list, but the
handling of the sync status flag should keep everything sorted
correctly. For example, if a delete of an existing filter is
followed by another add before the rx_mode task is run, as can
happen when going in and out of a bond, the add will cancel
the delete and no actual changes will be sent to the device.
We also add a check in the watchdog to see if there are any
stray unsync'd filters, possibly left over from a filter
overflow and waiting to get sync'd after some other filter
gets removed to make room.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since only two functions call through ionic_set_rx_mode(), one
that can sleep and one that can't, we can split the function
and put the bits of code into the callers. This removes an
unnecessary calling layer.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
With the move of mac filter handling to outside of the
ndo_rx_mode context using the IONIC_DW_TYPE_RX_MODE,
we no longer are using IONIC_DW_TYPE_RX_ADDR_ADD and
IONIC_DW_TYPE_RX_ADDR_DEL and they can be removed.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes the interchanged fetch of the CAN RX and TX error
counters from the ESD_EV_CAN_ERROR_EXT message. The RX error counter
is really in struct rx_msg::data[2] and the TX error counter is in
struct rx_msg::data[3].
Fixes: 96d8e90382 ("can: Add driver for esd CAN-USB/2 device")
Link: https://lore.kernel.org/r/20210825215227.4947-2-stefan.maetje@esd.eu
Cc: stable@vger.kernel.org
Signed-off-by: Stefan Mätje <stefan.maetje@esd.eu>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
drivers/net/usb/asix_devices.c:757:60-65: WARNING: conversion to bool not needed here
Remove unneeded conversion to bool
Semantic patch information:
Relational and logical operators evaluate to bool,
explicit conversion is overly verbose and unneeded.
Generated by: scripts/coccinelle/misc/boolconv.cocci
Fixes: 7a141e64cf ("net: usb: asix: ax88772: move embedded PHY detection as early as possible")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20210825183538.13070-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Added mbox for PF/VF drivers to retrieve current ingress bandwidth
profile free count. Also added current policer timeunit
configuration info based on which ratelimiting decisions can be
taken by PF/VF drivers.
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
New usecases are popping up where in user wants to install common MCAM
filters for all interfaces. Having channel verification will result in
duplicating such MCAM filters for each of the ingress interface. Hence
removed channel verification.
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
CN10K slicon has different device id for PTP device.
Hence this patch updates the driver with new id.
Though ptp driver being a separate driver AF manages
configuring PTP block by all PFs. To manage ptp, AF
driver checks in its probe whether
1. ptp hardware device found on silicon
2. A driver is bound to ptp device
3. The ptp driver probe is successful
In failure of cases 1 and 3, AF proceeds with out ptp
and for case 2 defers the probe. This patch refactors
code also to check for all the PTP device ids given in
ptp device ids table for case 1.
Also added PTP device ID for 95O silicon
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upon receiving the MBOX_MSG_FREE_RSRC_CNT, the AF will find out the
current number of free resources and reply it back to the requester. No
guarantee is given on the future state of the free resources yet.
If another requester sends MBOX_MSG_ATTACH_RESOURCES after this call,
the number of available resources might change.
Signed-off-by: George Cherian <george.cherian@marvell.com>
Signed-off-by: Stanislaw Kardach <skardach@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Added support for packet IO via SDK links which is used when
Octeon is connected as a end-point. Traffic host to end-point
and vice versa flow through SDP links. This patch also support
dual SDP blocks supported in 98xx silicon.
Signed-off-by: Radha Mohan Chintakuntla <radhac@marvell.com>
Signed-off-by: Nalla Pradeep <pnalla@marvell.com>
Signed-off-by: Subrahmanyam Nilla <snilla@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In 98xx, there are 2 NIX blocks and 4 LBK blocks present. The way
these NIX-LBK should be configured depends on the use case. By
default loopback functionality is supported in AF VF pairs which
are attached to NIX0 and NIX1 LFs alternatively to ensure load
balancing. NIX0 transmits a packet to LBK1 which will be received
by NIX1 and packet transmitted by NIX1 will get received by NIX0 via
LBK2.
There are some requirements where only one AF VF is used and respective
NIX is expected to operate in a mode where it can receive it own packet
back. This can be achieved if NIX0 sends packet to LBK0 and not LBK1.
Adding a flag in LF alloc request mailbox which can setup NIX0 to use
LBK0 and NIX1 can use LBK3.
Signed-off-by: Harman Kalra <hkalra@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Unlike OcteonTx2, the channel numbers used by CGX/RPM
and LBK on CN10K silicons aren't fixed in HW. They are
SW programmable, hence we cannot derive transmit link
from static channel numbers anymore. Get the same from
admin function via mailbox.
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Before C0 HW revision, The RSS adder was computed based the
following static formula.
rss_adder<7:0> = flow_tag<7:0> ^ flow_tag<15:8> ^
flow_tag<23:16> ^ flow_tag<31:24>
The above scheme has the following drawbacks:
1) It is not in line with other standard NIC behavior.
2) There can be an SW use case where SW can compute the hash
upfront using Toeplitz function and predict the queue selection
to optimize some packet lookup function. The nonstandard
way of doing XOR makes the consumer to not predict the queue selection.
C0 HW revision onwards, The HW can configure the
rss_adder<7:0> as flow_tag<7:0> to align with standard NICs.
This patch adds an option to select legacy RSS adder mode
vs standard NIC behavior by setting NIX_LF_RSS_TAG_LSB_AS_ADDER flag.
Since this bit field is used as reserved in old HW revisions,
No need to have an additional HW version check.
Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Starting from 96xx C0 onwards all silicons support traffic shaping.
This patch enables that feature along with other changes
- When PIR/CIR shaping config is modified, toggle SW_XOFF
for config to take effect
- Before SMQ flush, clear SW_XOFF at all parent schedulers
- Support to read current transmit scheduler configuration via mbox
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
it's helpful for complie test in other platform(e.g.X86)
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
NIX_AF_TX_LINKX_NORM_CREDIT holds running counter of
tx credits available per link. But, tx credits should be
configured based on MTU config. So MTU change needs tx
credit count update.
An issue exists whereby when both PF & VF are enabled and
PF traffic is flowing, if VF requests for MTU update,
updating the NORM_CREDIT register will lead to corruption
of credit count and subsequent deadlock of tx link as
the NORM_CREDIT register holds running count.
This patch provides workaround by pausing link traffic
using NIX_AF_TL1X_SW_XOFF, waiting for existing packets to
drain, and used credits be returned before updating new
credit count.
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Clear and disable interrupt before queueing work as there might be
a chance that work gets completed on other core faster and
interrupt enable as a part of the work completes before
interrupt disable in the interrupt context. This leads to
permanent disable of interrupt.
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set NPA batch allocation engine to process 35 cache lines
per turn on CN10k platform.
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'linux-can-next-for-5.15-20210825' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine says:
====================
pull-request: can-next 2021-08-25
this is a pull request of 4 patches for net-next/master.
The first patch is by Cai Huoqing, and enables COMPILE_TEST for the
rcar CAN drivers.
Lad Prabhakar contributes a patch for the rcar_canfd driver, fixing a
redundant assignment.
The last 2 patches are by Tang Bin, target the mscan driver, and clean
up the driver by converting it to of_device_get_match_data() and
removing a useless BUG_ON.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Reset support is present on R-Car. Let's support it, if it is
available.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The E-MAC IP on the R-Car AVB module has different initialization
parameters for RX frame size, duplex settings, different offset
for transfer speed setting and has magic packet detection support
compared to E-MAC on RZ/G2L Gigabit Ethernet module. Factorise
the ravb_emac_init function to support the later SoC.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The DMAC IP on the R-Car AVB module has different initialization
parameters for RCR, TGC, TCCR, RIC0, RIC2, and TIC compared to
DMAC IP on the RZ/G2L Gigabit Ethernet module. Factorise the
ravb_dmac_init function to support the later SoC.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
RZ/G2L supports HW checksum on RX and TX whereas R-Car supports on RX.
Factorise ravb_set_features to support this feature.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
R-Car supports 100 and 1000 Mbps transfer speed whereas RZ/G2L
in addition support 10Mbps. Factorise ravb_adjust_link function
in order to support 10Mbps speed.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
R-Car uses an extended descriptor in RX whereas, RZ/G2L uses
normal descriptor in RX. Factorise the ravb_rx function to
support the later SoC.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ravb_ring_init function uses an extended descriptor in RX for
R-Car and normal descriptor for RZ/G2L. Add a helper function
for RX ring buffer allocation to support later SoC.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ravb_ring_format function uses an extended descriptor in RX
for R-Car compared to the normal descriptor for RZ/G2L. Factorise
RX ring buffer buildup to extend the support for later SoC.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
R-Car uses extended descriptor in RX, whereas RZ/G2L uses normal
descriptor. Factorise ravb_ring_free function so that it can
support later SoC.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are some H/W differences for the gPTP feature between
R-Car Gen3, R-Car Gen2, and RZ/G2L as below.
1) On R-Car Gen3, gPTP support is active in config mode.
2) On R-Car Gen2, gPTP support is not active in config mode.
3) RZ/G2L does not support the gPTP feature.
Add a ptp_cfg_active hw feature bit to struct ravb_hw_info for
supporting gPTP active in config mode for R-Car Gen3.
This patch also removes enum ravb_chip_id, chip_id from both
struct ravb_hw_info and struct ravb_private, as it is unused.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are some H/W differences for the gPTP feature between
R-Car Gen3, R-Car Gen2, and RZ/G2L as below.
1) On R-Car Gen2, gPTP support is not active in config mode.
2) On R-Car Gen3, gPTP support is active in config mode.
3) RZ/G2L does not support the gPTP feature.
Add a no_ptp_cfg_active hw feature bit to struct ravb_hw_info for
handling gPTP for R-Car Gen2.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
R-Car Gen3 supports separate interrupts for E-MAC and DMA queues,
whereas R-Car Gen2 and RZ/G2L have a single interrupt instead.
Add a multi_irq hw feature bit to struct ravb_hw_info to enable
this only for R-Car Gen3.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For addressing 4 bytes alignment restriction on transmission
buffer for R-Car Gen2 we use 2 descriptors whereas it is a single
descriptor for other cases.
Replace the macros NUM_TX_DESC_GEN[23] with magic number and
add a comment to explain it.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Introduced in commit 38b5beeae7 ("net: dsa: sja1105: prepare tagger
for handling DSA tags and VLAN simultaneously"), the sja1105_xmit_tpid
function solved quite a different problem than our needs are now.
Then, we used best-effort VLAN filtering and we were using the xmit_tpid
to tunnel packets coming from an 8021q upper through the TX VLAN allocated
by tag_8021q to that egress port. The need for a different VLAN protocol
depending on switch revision came from the fact that this in itself was
more of a hack to trick the hardware into accepting tunneled VLANs in
the first place.
Right now, we deny 8021q uppers (see sja1105_prechangeupper). Even if we
supported them again, we would not do that using the same method of
{tunneling the VLAN on egress, retagging the VLAN on ingress} that we
had in the best-effort VLAN filtering mode. It seems rather simpler that
we just allocate a VLAN in the VLAN table that is simply not used by the
bridge at all, or by any other port.
Anyway, I have 2 gripes with the current sja1105_xmit_tpid:
1. When sending packets on behalf of a VLAN-aware bridge (with the new
TX forwarding offload framework) plus untagged (with the tag_8021q
VLAN added by the tagger) packets, we can see that on SJA1105P/Q/R/S
and later (which have a qinq_tpid of ETH_P_8021AD), some packets sent
through the DSA master have a VLAN protocol of 0x8100 and others of
0x88a8. This is strange and there is no reason for it now. If we have
a bridge and are therefore forced to send using that bridge's TPID,
we can as well blend with that bridge's VLAN protocol for all packets.
2. The sja1105_xmit_tpid introduces a dependency on the sja1105 driver,
because it looks inside dp->priv. It is desirable to keep as much
separation between taggers and switch drivers as possible. Now it
doesn't do that anymore.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The sja1105 driver is a bit special in its use of VLAN headers as DSA
tags. This is because in VLAN-aware mode, the VLAN headers use an actual
TPID of 0x8100, which is understood even by the DSA master as an actual
VLAN header.
Furthermore, control packets such as PTP and STP are transmitted with no
VLAN header as a DSA tag, because, depending on switch generation, there
are ways to steer these control packets towards a precise egress port
other than VLAN tags. Transmitting control packets as untagged means
leaving a door open for traffic in general to be transmitted as untagged
from the DSA master, and for it to traverse the switch and exit a random
switch port according to the FDB lookup.
This behavior is a bit out of line with other DSA drivers which have
native support for DSA tagging. There, it is to be expected that the
switch only accepts DSA-tagged packets on its CPU port, dropping
everything that does not match this pattern.
We perhaps rely a bit too much on the switches' hardware dropping on the
CPU port, and place no other restrictions in the kernel data path to
avoid that. For example, sja1105 is also a bit special in that STP/PTP
packets are transmitted using "management routes"
(sja1105_port_deferred_xmit): when sending a link-local packet from the
CPU, we must first write a SPI message to the switch to tell it to
expect a packet towards multicast MAC DA 01-80-c2-00-00-0e, and to route
it towards port 3 when it gets it. This entry expires as soon as it
matches a packet received by the switch, and it needs to be reinstalled
for the next packet etc. All in all quite a ghetto mechanism, but it is
all that the sja1105 switches offer for injecting a control packet.
The driver takes a mutex for serializing control packets and making the
pairs of SPI writes of a management route and its associated skb atomic,
but to be honest, a mutex is only relevant as long as all parties agree
to take it. With the DSA design, it is possible to open an AF_PACKET
socket on the DSA master net device, and blast packets towards
01-80-c2-00-00-0e, and whatever locking the DSA switch driver might use,
it all goes kaput because management routes installed by the driver will
match skbs sent by the DSA master, and not skbs generated by the driver
itself. So they will end up being routed on the wrong port.
So through the lens of that, maybe it would make sense to avoid that
from happening by doing something in the network stack, like: introduce
a new bit in struct sk_buff, like xmit_from_dsa. Then, somewhere around
dev_hard_start_xmit(), introduce the following check:
if (netdev_uses_dsa(dev) && !skb->xmit_from_dsa)
kfree_skb(skb);
Ok, maybe that is a bit drastic, but that would at least prevent a bunch
of problems. For example, right now, even though the majority of DSA
switches drop packets without DSA tags sent by the DSA master (and
therefore the majority of garbage that user space daemons like avahi and
udhcpcd and friends create), it is still conceivable that an aggressive
user space program can open an AF_PACKET socket and inject a spoofed DSA
tag directly on the DSA master. We have no protection against that; the
packet will be understood by the switch and be routed wherever user
space says. Furthermore: there are some DSA switches where we even have
register access over Ethernet, using DSA tags. So even user space
drivers are possible in this way. This is a huge hole.
However, the biggest thing that bothers me is that udhcpcd attempts to
ask for an IP address on all interfaces by default, and with sja1105, it
will attempt to get a valid IP address on both the DSA master as well as
on sja1105 switch ports themselves. So with IP addresses in the same
subnet on multiple interfaces, the routing table will be messed up and
the system will be unusable for traffic until it is configured manually
to not ask for an IP address on the DSA master itself.
It turns out that it is possible to avoid that in the sja1105 driver, at
least very superficially, by requesting the switch to drop VLAN-untagged
packets on the CPU port. With the exception of control packets, all
traffic originated from tag_sja1105.c is already VLAN-tagged, so only
STP and PTP packets need to be converted. For that, we need to uphold
the equivalence between an untagged and a pvid-tagged packet, and to
remember that the CPU port of sja1105 uses a pvid of 4095.
Now that we drop untagged traffic on the CPU port, non-aggressive user
space applications like udhcpcd stop bothering us, and sja1105 effectively
becomes just as vulnerable to the aggressive kind of user space programs
as other DSA switches are (ok, users can also create 8021q uppers on top
of the DSA master in the case of sja1105, but in future patches we can
easily deny that, but it still doesn't change the fact that VLAN-tagged
packets can still be injected over raw sockets).
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently it is possible for an attacker to craft packets with a fake
DSA tag and send them to us, and our user ports will accept them and
preserve that VLAN when transmitting towards the CPU. Then the tagger
will be misled into thinking that the packets came on a different port
than they really came on.
Up until recently there wasn't a good option to prevent this from
happening. In SJA1105P and later, the MAC Configuration Table introduced
two options called:
- DRPSITAG: Drop Single Inner Tagged Frames
- DRPSOTAG: Drop Single Outer Tagged Frames
Because the sja1105 driver classifies all VLANs as "outer VLANs" (S-Tags),
it would be in principle possible to enable the DRPSOTAG bit on ports
using tag_8021q, and drop on ingress all packets which have a VLAN tag.
When the switch is VLAN-unaware, this works, because it uses a custom
TPID of 0xdadb, so any "tagged" packets received on a user port are
probably a spoofing attempt. But when the switch overall is VLAN-aware,
and some ports are standalone (therefore they use tag_8021q), the TPID
is 0x8100, and the port can receive a mix of untagged and VLAN-tagged
packets. The untagged ones will be classified to the tag_8021q pvid, and
the tagged ones to the VLAN ID from the packet header. Yes, it is true
that since commit 4fbc08bd36 ("net: dsa: sja1105: deny 8021q uppers on
ports") we no longer support this mixed mode, but that is a temporary
limitation which will eventually be lifted. It would be nice to not
introduce one more restriction via DRPSOTAG, which would make the
standalone ports of a VLAN-aware switch drop genuinely VLAN-tagged
packets.
Also, the DRPSOTAG bit is not available on the first generation of
switches (SJA1105E, SJA1105T). So since one of the key features of this
driver is compatibility across switch generations, this makes it an even
less desirable approach.
The breakthrough comes from commit bef0746cf4 ("net: dsa: sja1105:
make sure untagged packets are dropped on ingress ports with no pvid"),
where it became obvious that untagged packets are not dropped even if
the ingress port is not in the VMEMB_PORT vector of that port's pvid.
However, VLAN-tagged packets are subject to VLAN ingress
checking/dropping. This means that instead of using the catch-all
DRPSOTAG bit introduced in SJA1105P, we can drop tagged packets on a
per-VLAN basis, and this is already compatible with SJA1105E/T.
This patch adds an "allowed_ingress" argument to sja1105_vlan_add(), and
we call it with "false" for tag_8021q VLANs on user ports. The tag_8021q
VLANs still need to be allowed, of course, on ingress to DSA ports and
CPU ports.
We also need to refine the drop_untagged check in sja1105_commit_pvid to
make it not freak out about this new configuration. Currently it will
try to keep the configuration consistent between untagged and pvid-tagged
packets, so if the pvid of a port is 1 but VLAN 1 is not in VMEMB_PORT,
packets tagged with VID 1 will behave the same as untagged packets, and
be dropped. This behavior is what we want for ports under a VLAN-aware
bridge, but for the ports with a tag_8021q pvid, we want untagged
packets to be accepted, but packets tagged with a header recognized by
the switch as a tag_8021q VLAN to be dropped. So only restrict the
drop_untagged check to apply to the bridge_pvid, not to the tag_8021q_pvid.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver was relying on dsa_slave_vlan_rx_add_vid to add VLAN ID 0. After
the blamed commit, VLAN ID 0 won't be set up anymore, breaking software
bridging fallback on VLAN-unaware bridges.
Manually set up VLAN ID 0 to fix this.
Fixes: 06cfb2df7e ("net: dsa: don't advertise 'rx-vlan-filter' when not needed")
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thanks to Kees Cook who detected the problem of memset that starting
from not the first member, but sized for the whole struct.
The better change will be to remove the redundant memset and to clear
only the msix_cnt member.
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Reported-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is not an expected case normally.
Add WARN_ON_ONCE in case of CQE read overflow, instead of failing
silently.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The existing code uses (1 + #vPorts * #Queues) MSIXs, which may exceed
the device limit.
Support EQ sharing, so that multiple vPorts (NICs) can share the same
set of MSIXs.
And, report the EQ-sharing capability bit to the host, which means the
host can potentially offer more vPorts and queues to the VM.
Also update the resource limit checking and error handling for better
robustness.
Now, we support up to 256 virtual ports per VF (it was 16/VF), and
support up to 64 queues per vPort (it was 16).
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The existing code has NAPI threads polling on EQ directly. To prepare
for EQ sharing among vPorts, move NAPI from EQ to CQ so that one EQ
can serve multiple CQs from different vPorts.
The "arm bit" is only set when CQ processing is completed to reduce
the number of EQ entries, which in turn reduce the number of interrupts
on EQ.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Function 'netxen_rom_fast_read' is declared twice, so remove the
repeated declaration.
Cc: Manish Chopra <manishc@marvell.com>
Cc: Rahul Verma <rahulv@marvell.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Clang warns:
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:2785:2: error: variable 'kw_offset' is uninitialized when used here [-Werror,-Wuninitialized]
FIND_VPD_KW(i, "RV");
^~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:2776:39: note: expanded from macro 'FIND_VPD_KW'
var = pci_vpd_find_info_keyword(vpd, kw_offset, vpdr_len, name); \
^~~~~~~~~
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:2748:34: note: initialize the variable 'kw_offset' to silence this warning
unsigned int vpdr_len, kw_offset, id_len;
^
= 0
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:2785:2: error: variable 'vpdr_len' is uninitialized when used here [-Werror,-Wuninitialized]
FIND_VPD_KW(i, "RV");
^~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:2776:50: note: expanded from macro 'FIND_VPD_KW'
var = pci_vpd_find_info_keyword(vpd, kw_offset, vpdr_len, name); \
^~~~~~~~
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:2748:23: note: initialize the variable 'vpdr_len' to silence this warning
unsigned int vpdr_len, kw_offset, id_len;
^
= 0
2 errors generated.
The series "PCI/VPD: Convert more users to the new VPD API functions"
was applied to net-next when it should have been applied to the PCI tree
because of build errors. However, commit 82e34c8a9b ("Revert "Revert
"cxgb4: Search VPD with pci_vpd_find_ro_info_keyword()""") reapplied a
change, resulting in the warning above.
Properly revert commit 8d63ee602d ("cxgb4: Search VPD with
pci_vpd_find_ro_info_keyword()") to fix the warning and restore proper
functionality. This also reverts commit 3a93bedea0 ("cxgb4: Remove
unused vpd_param member ec") to avoid future merge conflicts, as that
change has been applied to the PCI tree.
Link: https://lore.kernel.org/r/20210823120929.7c6f7a4f@canb.auug.org.au/
Link: https://lore.kernel.org/r/1ca29408-7bc7-4da5-59c7-87893c9e0442@gmail.com/
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ensure a valid XSK buffer before proceed to free the xdp buffer.
The following kernel panic is observed without this patch:
RIP: 0010:xp_free+0x5/0x40
Call Trace:
stmmac_napi_poll_rxtx+0x332/0xb30 [stmmac]
? stmmac_tx_timer+0x3c/0xb0 [stmmac]
net_rx_action+0x13d/0x3d0
__do_softirq+0xfc/0x2fb
? smpboot_register_percpu_thread+0xe0/0xe0
run_ksoftirqd+0x32/0x70
smpboot_thread_fn+0x1d8/0x2c0
kthread+0x169/0x1a0
? kthread_park+0x90/0x90
ret_from_fork+0x1f/0x30
---[ end trace 0000000000000002 ]---
Fixes: bba2556efa ("net: stmmac: Enable RX via AF_XDP zero-copy")
Cc: <stable@vger.kernel.org> # 5.13.x
Suggested-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Song Yoong Siang <yoong.siang.song@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After free xsk_pool, there is possibility that napi polling is still
running in the middle, thus causes a kernel crash due to kernel NULL
pointer dereference of rx_q->xsk_pool and tx_q->xsk_pool.
Fix this by changing the XDP pool setup sequence to:
1. disable napi before free xsk_pool
2. enable napi after init xsk_pool
The following kernel panic is observed without this patch:
RIP: 0010:xsk_uses_need_wakeup+0x5/0x10
Call Trace:
stmmac_napi_poll_rxtx+0x3a9/0xae0 [stmmac]
__napi_poll+0x27/0x130
net_rx_action+0x233/0x280
__do_softirq+0xe2/0x2b6
run_ksoftirqd+0x1a/0x20
smpboot_thread_fn+0xac/0x140
? sort_range+0x20/0x20
kthread+0x124/0x150
? set_kthread_struct+0x40/0x40
ret_from_fork+0x1f/0x30
---[ end trace a77c8956b79ac107 ]---
Fixes: bba2556efa ("net: stmmac: Enable RX via AF_XDP zero-copy")
Cc: <stable@vger.kernel.org> # 5.13.x
Signed-off-by: Song Yoong Siang <yoong.siang.song@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Nguyen says:
====================
1GbE Intel Wired LAN Driver Updates 2021-08-24
Vinicius Costa Gomes says:
This adds support for PCIe PTM (Precision Time Measurement) to the igc
driver. PCIe PTM allows the NIC and Host clocks to be compared more
precisely, improving the clock synchronization accuracy.
Patch 1/4 reverts a commit that made pci_enable_ptm() private to the
PCI subsystem, reverting makes it possible for it to be called from
the drivers.
Patch 2/4 adds the pcie_ptm_enabled() helper.
Patch 3/4 calls pci_enable_ptm() from the igc driver.
Patch 4/4 implements the PCIe PTM support. Exposing it via the
.getcrosststamp() API implies that the time measurements are made
synchronously with the ioctl(). The hardware was implemented so the
most convenient way to retrieve that information would be
asynchronously. So, to follow the expectations of the ioctl() we have
to use less convenient ways, triggering an PCIe PTM dialog every time
a ioctl() is received.
Some questions are raised (also pointed out in the commit message):
1. Using convert_art_ns_to_tsc() is too x86 specific, there should be
a common way to create a 'system_counterval_t' from a timestamp.
2. convert_art_ns_to_tsc() says that it should only be used when
X86_FEATURE_TSC_KNOWN_FREQ is true, but during tests it works even
when it returns false. Should that check be done?
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Device removal can result in a large burst of driver warning messages
(20 - 30) sent to the kernel log. Most of these are register read/write
failures.
This change limits the rate at which these messages are emitted.
Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If there is a device disconnect at roughly the same time as a
deferred PHY link reset there is a race condition that can result
in a kernel lock up due to a null pointer dereference in the
driver's deferred work handling routine lan78xx_delayedwork().
The following changes fix this problem.
Add new status flag EVENT_DEV_DISCONNECT to indicate when the
device has been removed and use it to prevent operations, such as
register access, that will fail once the device is removed.
Stop processing of deferred work items when the driver's USB
disconnect handler is invoked.
Disconnect the PHY only after the network device has been
unregistered and all delayed work has been cancelled.
Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the interface is given an IP address while the device is
suspended (as a result of an auto-suspend event) there is a race
between lan78xx_resume() and lan78xx_open() that can result in an
exception or failure to handle incoming packets. The following
changes fix this problem.
Introduce a mutex to serialise operations in the network interface
open and stop entry points with respect to the USB driver suspend
and resume entry points.
Move Tx and Rx data path start/stop to lan78xx_start() and
lan78xx_stop() respectively and flush the packet FIFOs before
starting the Tx and Rx data paths. This prevents the MAC and FIFOs
getting out of step and delivery of malformed packets to the network
stack.
Stop processing of received packets before disconnecting the
PHY from the MAC to prevent a kernel exception caused by handling
packets after the PHY device has been removed.
Refactor device auto-suspend code to make it consistent with the
the system suspend code and make the suspend handler easier to read.
Add new code to stop wake-on-lan packets or PHY events resuming the
host or device from suspend if the device has not been opened
(typically after an IP address is assigned).
This patch is dependent on changes to lan78xx_suspend() and
lan78xx_resume() introduced in the previous patch of this patch set.
Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The MAC can get out of step with the internal packet FIFOs if the
system goes to sleep when the link is active, especially at high
data rates. This can result in partial frames in the packet FIFOs
that in result in malformed frames being delivered to the host.
This occurs because the driver does not enable/disable the internal
packet FIFOs in step with the corresponding MAC data path. The
following changes fix this problem.
Update code that enables/disables the MAC receiver and transmitter
to the more general Rx and Tx data path, where the data path in each
direction consists of both the MAC function (Tx or Rx) and the
corresponding packet FIFO.
In the receive path the packet FIFO must be enabled before the MAC
receiver but disabled after the MAC receiver.
In the transmit path the opposite is true: the packet FIFO must be
enabled after the MAC transmitter but disabled before the MAC
transmitter.
The packet FIFOs can be flushed safely once the corresponding data
path is stopped.
Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
An exception is sometimes seen when the link speed is changed
from auto-negotiation to a fixed speed, or vice versa. The
exception occurs when the MAC is reset (due to the link speed
change) at the same time as the PHY state machine is accessing
a PHY register. The following changes fix this problem.
Rework the MAC reset to ensure there is no outstanding MDIO
register transaction before the reset and then wait until the
reset is complete before allowing any further MAC register access.
Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are many places in the driver where the return code from a
function call is captured but without a subsequent test of the
return code and appropriate action taken.
This patch adds the missing return code tests and action. In most
cases the action is an early exit from the calling function.
The function lan78xx_set_suspend() was also updated to make it
consistent with lan78xx_suspend().
Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove the pause frame queue from the driver. It is initialised
but not actually used.
Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set threshold at which flow control is triggered to 3/4 full of
the internal Rx packet FIFO to prevent packet drops at high data
rates. The new setting reduces the number of dropped UDP frames
and TCP retransmit requests especially on less capable CPUs.
Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove kernel timer that is not used by the driver.
Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix white space and code style issues identified by checkpatch.
Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Today netfront will trust the backend to send only sane response data.
In order to avoid privilege escalations or crashes in case of malicious
backends verify the data to be within expected limits. Especially make
sure that the response always references an outstanding request.
Note that only the tx queue needs special id handling, as for the rx
queue the id is equal to the index in the ring page.
Introduce a new indicator for the device whether it is broken and let
the device stop working when it is set. Set this indicator in case the
backend sets any weird data.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The tx_skb_freelist elements are in a single linked list with the
request id used as link reference. The per element link field is in a
union with the skb pointer of an in use request.
Move the link reference out of the union in order to enable a later
reuse of it for requests which need a populated skb pointer.
Rename add_id_to_freelist() and get_id_from_freelist() to
add_id_to_list() and get_id_from_list() in order to prepare using
those for other lists as well. Define ~0 as value to indicate the end
of a list and place that value into the link for a request not being
on the list.
When freeing a skb zero the skb pointer in the request. Use a NULL
value of the skb pointer instead of skb_entry_is_link() for deciding
whether a request has a skb linked to it.
Remove skb_entry_set_link() and open code it instead as it is really
trivial now.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In order to avoid a malicious backend being able to influence the local
processing of a request build the request locally first and then copy
it to the ring page. Any reading from the request influencing the
processing in the frontend needs to be done on the local instance.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In order to avoid problems in case the backend is modifying a response
on the ring page while the frontend has already seen it, just read the
response into a local buffer in one go and then operate on that buffer
only.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
macb_ptp_desc will not return NULL under most circumstances with correct
Kconfig and IP design config register. But for the sake of the extreme
corner case, check for NULL when using the helper. In case of rx_tstamp,
no action is necessary except to return (similar to timestamp disabled)
and warn. In case of TX, return -EINVAL to let the skb be free. Perform
this check before marking skb in progress.
Fixes coverity warning:
(4) Event dereference:
Dereferencing a null pointer "desc_ptp"
Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch enables automatic recovery by default in case of various
error condition like fw assert , hardware error etc.
This also ensure driver can handle multiple iteration of assertion
conditions.
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 2c896fb02e
"net: stmmac: dwmac-rk: add pd_gmac support for rk3399" and fixes
unbalanced pm_runtime_enable warnings.
In the commit to be reverted, support for power management was
introduced to the Rockchip glue code. Later, power management support
was introduced to the stmmac core code, resulting in multiple
invocations of pm_runtime_{enable,disable,get_sync,put_sync}.
The multiple invocations happen in rk_gmac_powerup and
stmmac_{dvr_probe, resume} as well as in rk_gmac_powerdown and
stmmac_{dvr_remove, suspend}, respectively, which are always called
in conjunction.
Fixes: 5ec5582343 ("net: stmmac: add clocks management for gmac driver")
Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the function mpc5xxx_can_probe(), the variable 'data' has already
been determined in the above code, so the BUG_ON() in this place is
useless, remove it.
Link: https://lore.kernel.org/r/20210823141033.17876-1-tangbin@cmss.chinamobile.com
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Fix redundant assignment of 'priv' to itself in
rcar_canfd_handle_channel_tx().
Fixes: 76e9353a80 ("can: rcar_canfd: Add support for RZ/G2L family")
Link: https://lore.kernel.org/r/20210820161449.18169-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Enables PCIe PTM (Precision Time Measurement) support in the igc
driver. Notifies the PCI devices that PCIe PTM should be enabled.
PCIe PTM is similar protocol to PTP (Precision Time Protocol) running
in the PCIe fabric, it allows devices to report time measurements from
their internal clocks and the correlation with the PCIe root clock.
The i225 NIC exposes some registers that expose those time
measurements, those registers will be used, in later patches, to
implement the PTP_SYS_OFFSET_PRECISE ioctl().
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Use pci_vpd_alloc() to dynamically allocate a properly sized buffer and
read the full VPD data into it.
This simplifies the code, and we no longer have to make assumptions about
VPD size.
Link: https://lore.kernel.org/r/62522a24-f39a-2b35-1577-1fbb41695bed@gmail.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Use pci_vpd_find_ro_info_keyword() to search for keywords in VPD to
simplify the code.
Use strncasecmp() to match Vendor ID instead of comparing with lower- and
upper-case hex string.
[bhelgaas: convert to strncasecmp()]
Link: https://lore.kernel.org/r/a9f730cf-e31e-902b-7b39-0ff2e99636e0@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Use pci_vpd_alloc() to dynamically allocate a properly sized buffer and
read the full VPD data into it.
This simplifies the code, and we no longer have to make assumptions about
VPD size.
Link: https://lore.kernel.org/r/821a334d-ff9d-386e-5f42-9b620ab3dbfa@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Read NVRAM directly into buffer and use swab32s() to byte swap it in-place
instead of reading it into the end of the buffer and swapping it manually
while copying it.
[bhelgaas: commit log]
Link: https://lore.kernel.org/r/e4ac6229-1df5-8760-3a87-1ad0ace87137@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Use pci_vpd_find_ro_info_keyword() to search for keywords in VPD to
simplify the code.
Replace netif_err() with pci_err() because the netdevice isn't registered
yet, which results in very ugly messages.
Use kmemdup_nul() instead of open-coding it.
This is the same as 37838aa437 ("sfc: Search VPD with
pci_vpd_find_ro_info_keyword()"), just for the falcon chip version.
Link: https://lore.kernel.org/r/898282a1-13bd-17bc-2e9a-d3dcd336b46c@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Use pci_vpd_alloc() to dynamically allocate a properly sized buffer and
read the full VPD data into it.
This avoids having to allocate a buffer on the stack, and we don't have to
make any assumptions on VPD size and location of information in VPD.
This is the same as 5119e20fac ("sfc: Read VPD with pci_vpd_alloc()"),
just for the falcon chip version.
Link: https://lore.kernel.org/r/2a8d069e-9516-50d8-6520-2614222c8f5f@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Add support in ethtool for switching EQE/CQE mode.
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
For device whose version is above V3(include V3), the GL can
select EQE or CQE mode, so adds support for it.
In CQE mode, the coalesced timer will restart when the first new
completion occurs, while in EQE mode, the timer will not restart.
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In order to support more coalesce parameters through netlink,
add two new parameter kernel_coal and extack for .set_coalesce
and .get_coalesce, then some extra info can return to user with
the netlink API.
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
ASPM is disabled completely because we've seen different types of
problems in the past. However it seems these problems occurred with
L1 or L1 sub-states only. On all the chip versions I've seen the
acceptable L0s exit latency is 512ns. This should be short enough not
to cause problems. If the actual L0s exit latency of the PCIe link
is bigger than 512ns then the PCI core will disable L0s anyway.
So let's give it a try and disable L1 and L1 sub-states only.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In early erratas this issue only covered port 0 when changing from
[x]MII (rev A 3.6). In subsequent errata versions this errata changed to
cover the additional "Hardware reset in CPU managed mode" condition, and
removed the note specifying that it only applied to port 0.
In designs where the device is configured with CPU managed mode
(CPU_MGD), on reset all SERDES ports (p0, p9, p10) have a stuck power
down bit and require this initial power up procedure. As such apply this
errata to all three SERDES ports of the mv88e6393x.
Signed-off-by: Nathan Rossi <nathan.rossi@digi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As explained in commit e358bef7c3 ("net: dsa: Give drivers the chance
to veto certain upper devices"), the hellcreek driver uses some tricks
to comply with the network stack expectations: it enforces port
separation in standalone mode using VLANs. For untagged traffic,
bridging between ports is prevented by using different PVIDs, and for
VLAN-tagged traffic, it never accepts 8021q uppers with the same VID on
two ports, so packets with one VLAN cannot leak from one port to another.
That is almost fine*, and has worked because hellcreek relied on an
implicit behavior of the DSA core that was changed by the previous
patch: the standalone ports declare the 'rx-vlan-filter' feature as 'on
[fixed]'. Since most of the DSA drivers are actually VLAN-unaware in
standalone mode, that feature was actually incorrectly reflecting the
hardware/driver state, so there was a desire to fix it. This leaves the
hellcreek driver in a situation where it has to explicitly request this
behavior from the DSA framework.
We configure the ports as follows:
- Standalone: 'rx-vlan-filter' is on. An 8021q upper on top of a
standalone hellcreek port will go through dsa_slave_vlan_rx_add_vid
and will add a VLAN to the hardware tables, giving the driver the
opportunity to refuse it through .port_prechangeupper.
- Bridged with vlan_filtering=0: 'rx-vlan-filter' is off. An 8021q upper
on top of a bridged hellcreek port will not go through
dsa_slave_vlan_rx_add_vid, because there will not be any attempt to
offload this VLAN. The driver already disables VLAN awareness, so that
upper should receive the traffic it needs.
- Bridged with vlan_filtering=1: 'rx-vlan-filter' is on. An 8021q upper
on top of a bridged hellcreek port will call dsa_slave_vlan_rx_add_vid,
and can again be vetoed through .port_prechangeupper.
*It is not actually completely fine, because if I follow through
correctly, we can have the following situation:
ip link add br0 type bridge vlan_filtering 0
ip link set lan0 master br0 # lan0 now becomes VLAN-unaware
ip link set lan0 nomaster # lan0 fails to become VLAN-aware again, therefore breaking isolation
This patch fixes that corner case by extending the DSA core logic, based
on this requested attribute, to change the VLAN awareness state of the
switch (port) when it leaves the bridge.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Kurt Kanzenbach <kurt@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
For VFs we should return with an error in case we didn't get the exact
number of msix vectors as we requested.
Not doing that will lead to a crash when starting queues for this VF.
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently the interface name and PCI address are printed twice, because
netdev_info() is printing this information implicitly already. This results
in messages like the following. remove the duplicated information.
cxgb4 0000:81:00.4 eth3: eth3: Chelsio T6225-OCP-SO (0000:81:00.4) 1G/10G/25GBASE-SFP28
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Retrieve OF match data, it's better and cleaner to use
'of_device_get_match_data' over 'of_match_device'.
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Retrieve OF match data, it's better and cleaner to use
'of_device_get_match_data' over 'of_match_device'.
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix crash on reboot on a system with ASIX AX88178 USB adapter attached
to it:
| asix 1-1.4:1.0 eth0: unregister 'asix' usb-ci_hdrc.0-1.4, ASIX AX88178 USB 2.0 Ethernet
| 8<--- cut here ---
| Unable to handle kernel NULL pointer dereference at virtual address 0000028c
| pgd = 5ec93aee
| [0000028c] *pgd=00000000
| Internal error: Oops: 5 [#1] PREEMPT SMP ARM
| Modules linked in:
| CPU: 1 PID: 1 Comm: systemd-shutdow Not tainted 5.14.0-rc1-20210811-1 #4
| Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
| PC is at phy_disconnect+0x8/0x48
| LR is at ax88772_unbind+0x14/0x20
| [<80650d04>] (phy_disconnect) from [<80741aa4>] (ax88772_unbind+0x14/0x20)
| [<80741aa4>] (ax88772_unbind) from [<8074e250>] (usbnet_disconnect+0x48/0xd8)
| [<8074e250>] (usbnet_disconnect) from [<807655e0>] (usb_unbind_interface+0x78/0x25c)
| [<807655e0>] (usb_unbind_interface) from [<805b03a0>] (__device_release_driver+0x154/0x20c)
| [<805b03a0>] (__device_release_driver) from [<805b0478>] (device_release_driver+0x20/0x2c)
| [<805b0478>] (device_release_driver) from [<805af944>] (bus_remove_device+0xcc/0xf8)
| [<805af944>] (bus_remove_device) from [<805ab26c>] (device_del+0x178/0x4b0)
| [<805ab26c>] (device_del) from [<807634a4>] (usb_disable_device+0xcc/0x178)
| [<807634a4>] (usb_disable_device) from [<8075a060>] (usb_disconnect+0xd8/0x238)
| [<8075a060>] (usb_disconnect) from [<8075a02c>] (usb_disconnect+0xa4/0x238)
| [<8075a02c>] (usb_disconnect) from [<8075a02c>] (usb_disconnect+0xa4/0x238)
| [<8075a02c>] (usb_disconnect) from [<80af3520>] (usb_remove_hcd+0xa0/0x198)
| [<80af3520>] (usb_remove_hcd) from [<807902e0>] (host_stop+0x38/0xa8)
| [<807902e0>] (host_stop) from [<8078d9e4>] (ci_hdrc_remove+0x3c/0x118)
| [<8078d9e4>] (ci_hdrc_remove) from [<805b27ec>] (platform_remove+0x20/0x50)
| [<805b27ec>] (platform_remove) from [<805b03a0>] (__device_release_driver+0x154/0x20c)
| [<805b03a0>] (__device_release_driver) from [<805b0478>] (device_release_driver+0x20/0x2c)
| [<805b0478>] (device_release_driver) from [<805af944>] (bus_remove_device+0xcc/0xf8)
| [<805af944>] (bus_remove_device) from [<805ab26c>] (device_del+0x178/0x4b0)
For this adapter we call ax88178_bind() and ax88772_unbind(), which is
related to different chip version and different counter part *bind()
function.
Since this chip is currently not ported to the PHYLIB, we do not need to
call phy_disconnect() here. So, to fix this crash, we need to add
ax88178_unbind().
Fixes: e532a096be ("net: usb: asix: ax88772: add phylib support")
Reported-by: Robin van der Gracht <robin@protonic.nl>
Tested-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some HW revisions need additional MAC configuration before the embedded PHY
can be enabled. If this is not done, we won't be able to get response
from the internal PHY.
This issue was detected on chipcode == AX_AX88772_CHIPCODE variant,
where ax88772_hw_reset() was executed with missing embd_phy flag.
Fixes: e532a096be ("net: usb: asix: ax88772: add phylib support")
Reported-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
First set of patches for v5.15. This got delayed as I have been mostly
offline for the last few weeks. The biggest change is removal of
prism54 driver, otherwise just smaller changes.
Major changes:
ath5k, ath9k, ath10k, ath11k:
* switch from 'pci_' to 'dma_' API
brcmfmac
* allow per-board firmware binaries
* add support 43752 SDIO device
prism54
* remove the obsoleted driver, everyone should be using p54 driver instead
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Merge tag 'wireless-drivers-next-2021-08-22' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for v5.15
First set of patches for v5.15. This got delayed as I have been mostly
offline for the last few weeks. The biggest change is removal of
prism54 driver, otherwise just smaller changes.
Major changes:
ath5k, ath9k, ath10k, ath11k:
* switch from 'pci_' to 'dma_' API
brcmfmac
* allow per-board firmware binaries
* add support 43752 SDIO device
prism54
* remove the obsoleted driver, everyone should be using p54 driver instead
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The usage of these macros has been removed in commit db1a8611c8
("sunhme: Convert to pure OF driver."). So they can be removed.
This simplifies code and helps for removing the wrappers in
include/linux/pci-dma-compat.h.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
According to Armada XP datasheet bit at 0 position is corresponding for
TxInProg indication.
Fixes: c5aff18204 ("net: mvneta: driver for Marvell Armada 370/XP network unit")
Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the case of taprio offload is not enabled, the error handling path
causes a kernel crash due to kernel NULL pointer deference.
Fix this by adding check for NULL before attempt to access 'plat->est'
on the mutex_lock() call.
The following kernel panic is observed without this patch:
RIP: 0010:mutex_lock+0x10/0x20
Call Trace:
tc_setup_taprio+0x482/0x560 [stmmac]
kmem_cache_alloc_trace+0x13f/0x490
taprio_disable_offload.isra.0+0x9d/0x180 [sch_taprio]
taprio_destroy+0x6c/0x100 [sch_taprio]
qdisc_create+0x2e5/0x4f0
tc_modify_qdisc+0x126/0x740
rtnetlink_rcv_msg+0x12b/0x380
_raw_spin_lock_irqsave+0x19/0x40
_raw_spin_unlock_irqrestore+0x18/0x30
create_object+0x212/0x340
rtnl_calcit.isra.0+0x110/0x110
netlink_rcv_skb+0x50/0x100
netlink_unicast+0x191/0x230
netlink_sendmsg+0x243/0x470
sock_sendmsg+0x5e/0x60
____sys_sendmsg+0x20b/0x280
copy_msghdr_from_user+0x5c/0x90
__mod_memcg_state+0x87/0xf0
___sys_sendmsg+0x7c/0xc0
lru_cache_add+0x7f/0xa0
_raw_spin_unlock+0x16/0x30
wp_page_copy+0x449/0x890
handle_mm_fault+0x921/0xfc0
__sys_sendmsg+0x59/0xa0
do_syscall_64+0x33/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xa9
---[ end trace b1f19b24368a96aa ]---
Fixes: b60189e039 ("net: stmmac: Integrate EST with TAPRIO scheduler API")
Cc: <stable@vger.kernel.org> # 5.10.x
Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2021-08-20
This series contains updates to igc and e1000e drivers.
Aaron Ma resolves a page fault which occurs when thunderbolt is
unplugged for igc.
Toshiki Nishioka fixes Tx queue looping to use actual number of queues
instead of max value for igc.
Sasha fixes an incorrect latency comparison by decoding the values before
comparing and prevents attempted writes to read-only NVMs for e1000e.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
A successful 'xge_mdio_config()' call should be balanced by a corresponding
'xge_mdio_remove()' call in the error handling path of the probe, as
already done in the remove function.
Update the error handling path accordingly.
Fixes: ea8ab16ab2 ("drivers: net: xgene-v2: Add MDIO support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed says:
====================
This pulls mlx5-next branch which includes patches already reviewed on
net-next and rdma mailing lists.
1) mlx5 single E-Switch FDB for lag
2) IB/mlx5: Rename is_apu_thread_cq function to is_apu_cq
3) Add DCS caps & fields support
We need this in net-next as multiple features are dependent on the
single FDB feature.
====================
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
* mellanox/mlx5-next:
net/mlx5: Lag, Create shared FDB when in switchdev mode
net/mlx5: E-Switch, add logic to enable shared FDB
net/mlx5: Lag, move lag destruction to a workqueue
net/mlx5: Lag, properly lock eswitch if needed
net/mlx5: Add send to vport rules on paired device
net/mlx5: E-Switch, Add event callback for representors
net/mlx5e: Use shared mappings for restoring from metadata
net/mlx5e: Add an option to create a shared mapping
net/mlx5: E-Switch, set flow source for send to uplink rule
RDMA/mlx5: Add shared FDB support
{net, RDMA}/mlx5: Extend send to vport rules
RDMA/mlx5: Fill port info based on the relevant eswitch
net/mlx5: Lag, add initial logic for shared FDB
net/mlx5: Return mdev from eswitch
IB/mlx5: Rename is_apu_thread_cq function to is_apu_cq
Use pci_vpd_find_ro_info_keyword() to search for keywords in VPD to
simplify the code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Validate the VPD checksum with pci_vpd_check_csum() to simplify the code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use pci_vpd_find_ro_info_keyword() to search for keywords in VPD to
simplify the code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use pci_vpd_alloc() to dynamically allocate a properly sized buffer and
read the full VPD data into it.
This simplifies the code, and we no longer have to make assumptions about
VPD size.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use pci_vpd_find_ro_info_keyword() to search for keywords in VPD to
simplify the code.
str_id_reg and str_id_cap hold the same string and are used in the same
comparison. This doesn't make sense, use one string str_id instead.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use pci_vpd_alloc() to dynamically allocate a properly sized buffer and
read the full VPD data into it.
This simplifies the code, and we no longer have to make assumptions about
VPD size.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use pci_vpd_find_ro_info_keyword() to search for keywords in VPD to
simplify the code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is the same as 37838aa437 "sfc: Search VPD with
pci_vpd_find_ro_info_keyword()", just for the falcon chip version.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is the same as 5119e20fac "sfc: Read VPD with pci_vpd_alloc()",
just for the falcon chip version.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 01848e05f8 ("mlxsw: spectrum_router: Add support for inner
layer 3 multipath hash policy") and commit daeabf89eb ("mlxsw:
spectrum_router: Add support for custom multipath hash policy") added
support for multipath hash policies where the hash is calculated based
on inner packet fields.
For IPv6-in-IPv6 packets, the default parsing depth (96 bytes) is not
enough when these policies are used.
Therefore, for such cases, call the new API to increase / decrease the
parsing depth as necessary. Care is taken to ensure the API is not
called multiple times.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The previous patches added new API to handle parsing depth and converted
the existing code to use it.
Remove the old infrastructure which is not needed anymore.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Convert VxLAN and PTP modules to increase parsing depth using new API
that was added in the previous patch.
Separate MPRS register's configuration to VxLAN related configuration
and parsing depth configuration. Handle each one using the appropriate
API.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Spectrum ASICs have a configurable limit on how deep into the packet
they parse. By default, the limit is 96 bytes.
There are several cases where this parsing depth is not enough and there
is a need to increase it. Currently, increasing parsing depth is
maintained as part of VxLAN module, because the MPRS register which
configures parsing depth also configures UDP destination port number
used for VxLAN encapsulation and decapsulation.
Add an API for increasing parsing depth as part of spectrum.c code, so
that it will be possible to use it from other modules. In addition, add
an API for setting UDP destination port and protect it using a dedicated
lock for saving parsing configurations. The lock is needed as not all
the callers hold RTNL lock.
Maintain a counter for increased parsing depth consumers. For first
consumer subscription, increase the parsing depth and for last consumer
unsubscription, set parsing depth to default value.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
RVU SMMU widget stores the final translated PA at
RVU_AF_SMMU_TLN_FLIT0<57:18> instead of FLIT1 register. This patch
fixes the address translation logic to use the correct register.
Fixes: 893ae97214 ("octeontx2-af: cn10k: Support configurable LMTST regions")
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Otherthan setting action as RSS in NPC MCAM entry, RSS flowkey
algorithm index also needs to be set. Otherwise whatever algorithm
is defined at flowkey index '0' will be considered by HW and pkt
flows will be distributed as such.
Fix this by saving the flowkey index sent by admin function while
initializing RSS and then use it when framing MCAM rules.
Fixes: 81a4362016 ("octeontx2-pf: Add RSS multi group support")
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Whenever user changes interface MAC address both default DMAC based
MCAM rule and VLAN offload (for strip) rules are updated with new
MAC address. To update or install VLAN offload rule PF driver needs
interface's receive channel info, which is retrieved from admin
function at the time of NIXLF initialization.
If user changes MAC address before interface is UP, VLAN offload rule
installation will fail and throw error as receive channel is not valid.
To avoid this, skip VLAN offload rule installation if netdev is not UP.
This rule will anyway be reinslatted as part of open() call.
Fixes: fd9d7859db ("octeontx2-pf: Implement ingress/egress VLAN offload")
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bandwidth profiles (ipolicer structure)is implemented only on CN10K
platform. But current code try to free the ipolicer memory without
checking the capibility flag leading to driver crash on OCTEONTX2
platform. This patch fixes the issue by add capability flag check.
Fixes: e8e095b3b3 ("octeontx2-af: cn10k: Bandwidth profiles config support")
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
CN10K platform requires physically contiguous memory for LMTST
operations which goes beyond a single page. Not having physically
contiguous memory will result in HW fetching transmit descriptors from
a wrong memory location.
Hence use DMA_ATTR_FORCE_CONTIGUOUS attribute while allocating
LMTST regions.
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch corrects the erroneous vlan priority mask field that was
send to npc_install_flow_req.
Fixes: 1d4d9e42c2 ("octeontx2-pf: Add tc flower hardware offload on ingress traffic")
Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Supported link modes are updated by firmware in shared
structure per interface. Kernel uses this value to display
supported link modes via ethtool.
Currently there is extra validation that firmware updated
modes are validated against internal list of supported modes.
As intenal list of supported modes are not updated frequently
new modes supported by firmware are not updated to ethtool.
Hence remove extra validation and report all firmware updated
modes.
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Print debug message if any of the RVU hardware blocks
reset fails.
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As per hardware the base channel number configured
for programmable channels of a block must be multiple
of number of channels of that block. This condition
is not met for SDP base channel currently. Hence this
patch ensures all the base channel numbers of all
blocks are multiple of number of channels present in
the blocks. Also instead of hardcoding SDP number
of channels the same is read from the NIX_AF_CONST1
register.
Fixes: 242da43921 ("octeontx2-af: cn10k: Add support for programmable")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
'bp_ena' in Aura context is NIX block index, setting it
zero will always backpressure NIX0 block, even if NIXLF
belongs to NIX1. Hence fix this by setting it appropriately
based on NIX block address.
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Finally, rename "ipa_clock.c" to be "ipa_power.c" and "ipa_clock.h"
to be "ipa_power.h".
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rename a number of functions to clarify that there is no longer a
notion of an "IPA clock," but rather that the functions are more
generally related to IPA power management.
ipa_clock_enable() -> ipa_power_enable()
ipa_clock_disable() -> ipa_power_disable()
ipa_clock_rate() -> ipa_core_clock_rate()
ipa_clock_init() -> ipa_power_init()
ipa_clock_exit() -> ipa_power_exit()
Rename the ipa_clock structure to be ipa_power. Rename all
variables and fields using that structure type "power" rather
than "clock".
Rename the ipa_clock_data structure to be ipa_power_data, and more
broadly, just substitute "power" for "clock" in places that
previously represented things related to the "IPA clock".
Update comments throughout.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use runtime power management autosuspend.
Up until this point, we only suspended the IPA hardware for system
suspend; now we'll suspend it aggressively using runtime power
management, setting the initial autosuspend delay to half a second
of inactivity.
Replace pm_runtime_put() calls with pm_runtime_put_autosuspend(),
call pm_runtime_mark_last_busy() before each of those. In places
where we're shutting things down, or decrementing power references
for errors, use pm_runtime_put_noidle() instead.
Finally, remove ipa_runtime_idle(), so the ->runtime_suspend
callback will occur if idle.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Don't populate the array addr on the stack but instead it
static const. Makes the object code smaller by 79 bytes:
Before:
text data bss dec hex filename
176015 54652 128 230795 3858b .../broadcom/brcm80211/brcmsmac/main.o
After:
text data bss dec hex filename
175872 54716 128 230716 3853c .../broadcom/brcm80211/brcmsmac/main.o
(gcc version 10.3.0)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210819125552.8888-1-colin.king@canonical.com
The rtw_pci_init_rx_ring function is only ever called with a fixed
constant or RTK_MAX_RX_DESC_NUM for the "len" argument. Since this
constant is defined as 512, the "if (len > TRX_BD_IDX_MASK)" check
can never happen (TRX_BD_IDX_MASK is defined as GENMASK(11, 0) or in
other words as 4095).
So, remove this check.
The true motivation for this patch is to silence a false Coverity
warning.
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Len Baker <len.baker@gmx.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210731163546.10753-1-len.baker@gmx.com
Current flow will lead to null ptr access because of trying
to get the size of freed probe-request packets. We store the
information of packet size into rsvd page instead and also fix
the size error issue, which will cause unstable behavoir of
sending probe request by wow firmware.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210728014335.8785-6-pkshih@realtek.com
After waking up from WoWLAN, call ieee80211_report_wowlan_wakeup
function call to report wakeup reason to userspace via nl80211.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210728014335.8785-5-pkshih@realtek.com
The kernel test robot reports undefined reference after we report wakeup
reason to mac80211. This is because CONFIG_PM is not defined in the testing
configuration file. In fact, functions within wow.c are used if CONFIG_PM
is defined, so use CONFIG_PM to decide whether we build this file or not.
The reported messages are:
hppa-linux-ld: drivers/net/wireless/realtek/rtw88/wow.o: in function `rtw_wow_show_wakeup_reason':
>> (.text+0x6c4): undefined reference to `ieee80211_report_wowlan_wakeup'
>> hppa-linux-ld: (.text+0x6e0): undefined reference to `ieee80211_report_wowlan_wakeup'
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210728014335.8785-4-pkshih@realtek.com
The original setting of rsvd pages is compilcated and lead to
error for connecting to AP after resuming from pno mode.
We refine the setting based on different firmware and the link state
to avoid it.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210728014335.8785-3-pkshih@realtek.com
In current wow flow, driver calls rtw_wow_fw_start and sleep for 100ms,
to wait firmware finish preliminary work and then update the value of
WOWLAN_WAKE_REASON register to zero. But later firmware will start wow
function with power-saving mode, in which mode the value of
WOWLAN_WAKE_REASON register is 0xea. So driver may get 0xea value and
return fail. We use read_poll_timeout instead to check the value to avoid
this issue.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210728014335.8785-2-pkshih@realtek.com
We find the power sequence of system suspend flow don't meet
the criteria when using 8822CE-VR chip by rfe-type 6, because the
reference clock form host is sometimes late. To avoid the behavoir,
we keep CLKREQ# signal to low during suspend to make sure the reference
clock arrival in time.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210727100503.31626-1-pkshih@realtek.com
Finetune parameter for firmware.
Previous mode neglects environment impacts and could lead to
performance downgrade in some cases.
This new mode makes fw adapts better under noisy environment.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210713104524.47101-3-pkshih@realtek.com
Enabling this improves tx performance for long distance transmission.
We used to enable stbc by the rx stbc cap of the associated station.
But rx cap will be masked out in ieee80211_ht_cap_ie_to_sta_ht_cap
if we do not declare tx stbc.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210713104524.47101-2-pkshih@realtek.com
We find that some disconnect events are related to failure of
tx report, so increase log level to improve debuggability.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210713104524.47101-1-pkshih@realtek.com
The TX A-MPDU aggregation is not handled in the driver since the
ieee80211_start_tx_ba_session has never been started properly.
Start and stop the TX BA session by tracking the TX aggregation
status of each TID. Fix the ampdu_action and the tx descriptor
accordingly with the given TID.
Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210804151325.86600-1-chris.chiu@canonical.com
There will be crazy numbers of interrupts triggered by 8188cu and
8192cu module, around 8000~10000 interrupts per second, on the usb
host controller. Compare with the vendor driver source code, it's
mapping to the configuration CONFIG_USB_INTERRUPT_IN_PIPE and it is
disabled by default.
Since the interrupt transfer is neither used for TX/RX nor H2C
commands. Disable it to avoid the excessive amount of interrupts
for the 8188cu and 8192cu module which I only have for verification.
Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Tested-by: reto.schneider@husqvarnagroup.com
Acked-by: Jes Sorensen <Jes.Sorensen@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210701163354.118403-1-chris.chiu@canonical.com
Avraham Stern