Commit Graph

855456 Commits

Author SHA1 Message Date
John Crispin
2ab4587675 mac80211: add support for the ADDBA extension element
HE allows peers to negotiate the aggregation fragmentation level to be used
during transmission. The level can be 1-3. The Ext element is added behind
the ADDBA request inside the action frame. The responder will then reply
with the same level or a lower one if the requested one is not supported.
This patch only handles the negotiation part as the ADDBA frames get passed
to the ATH11k firmware, which does the rest of the magic for us aswell as
generating the requests.

Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/20190729104512.27615-1-john@phrozen.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-29 16:40:22 +02:00
John Crispin
697f6c507c mac80211: propagate HE operation info into bss_conf
Upon a successful assoc a station shall store the content of the HE
operation element inside bss_conf so that the driver can setup the
hardware accordingly.

Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20190729102342.8659-2-john@phrozen.org
[use struct copy]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-29 16:39:37 +02:00
John Crispin
90d4962cfc mac80211: fix ieee80211_he_oper_size() comment
Johannes mentioned that the comment should not reference mac80211 as other
subsystems might call the helper.

Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20190729102342.8659-1-john@phrozen.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-29 16:34:52 +02:00
Michael Vassernis
d34990bbc2 cfg80211: fix dfs channels remain DFS_AVAILABLE after ch_switch
Depending on the regulatory domain, leaving a DFS channel requires
a new CAC to be performed when returning back to that channel.
If needed, update dfs states after a driver channel switch.

Signed-off-by: Michael Vassernis <michael.vassernis@tandemg.com>
Link: https://lore.kernel.org/r/20190729060024.5660-1-michael.vassernis@tandemg.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-29 16:34:41 +02:00
Sergey Matyukevich
0afd425b1b cfg80211: fix duplicated scan entries after channel switch
When associated BSS completes channel switch procedure, its channel
record needs to be updated. The existing mac80211 solution was
extended to cfg80211 in commit 5dc8cdce1d ("mac80211/cfg80211:
update bss channel on channel switch").

However that solution still appears to be incomplete as it may lead
to duplicated scan entries for associated BSS after channel switch.
The root cause of the problem is as follows. Each BSS entry is
included into the following data structures:
- bss list rdev->bss_list
- bss search tree rdev->bss_tree
Updating BSS channel record without rebuilding bss_tree may break
tree search since cmp_bss considers all of the following: channel,
bssid, ssid. When BSS channel is updated, but its location in bss_tree
is not updated, then subsequent search operations may fail to locate
this BSS since they will be traversing bss_tree in wrong direction.
As a result, for scan performed after associated BSS channel switch,
cfg80211_bss_update may add the second entry for the same BSS to both
bss_list and bss_tree, rather then update the existing one.

To summarize, if BSS channel needs to be updated, then bss_tree should
be rebuilt in order to put updated BSS entry into a proper location.

This commit suggests the following straightforward solution:
- if new entry has been already created for BSS after channel switch,
  then use its IEs to update known BSS entry and then remove new
  entry completely
- use rb_erase/rb_insert_bss reinstall updated BSS in bss_tree
- for nontransmit BSS entry, the whole transmit BSS hierarchy
  is updated

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20190726163922.27509-3-sergey.matyukevich.os@quantenna.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-29 16:23:13 +02:00
Sergey Matyukevich
3ab8227d3e cfg80211: refactor cfg80211_bss_update
This patch implements minor refactoring for cfg80211_bss_update function.
Code path for updating known BSS is extracted into dedicated
cfg80211_update_known_bss function.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20190726163922.27509-2-sergey.matyukevich.os@quantenna.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-29 16:23:13 +02:00
Denis Kenzior
ae6fa4d5e9 nl80211: Include wiphy address setup in NEW_WIPHY
Include wiphy address setup in wiphy dumps and new wiphy events.  The
wiphy permanent address is exposed as ATTR_MAC.  If addr_mask is setup,
then it is included as ATTR_MAC_MASK attribute.  If multiple addresses
are available, then their are exposed in a nested ATTR_MAC_ADDRS array.

This information is already exposed via sysfs, but it makes sense to
include it in the wiphy dump as well.

Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Link: https://lore.kernel.org/r/20190722113312.14031-3-denkenz@gmail.com
[use just nla_nest_start(), this is new functionality]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 16:14:13 +02:00
Denis Kenzior
7a113110fc nl80211: document uapi for CMD_FRAME_WAIT_CANCEL
Commit 1c38c7f220 ("nl80211: send event when CMD_FRAME duration
expires") added the possibility of NL80211_CMD_FRAME_WAIT_CANCEL
being sent whenever the off-channel wait time associated with a
CMD_FRAME completes.  Document this in the uapi/linux/nl80211.h file.

Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Link: https://lore.kernel.org/r/20190722113312.14031-1-denkenz@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 16:14:12 +02:00
Sven Eckelmann
60ad72da55 mac80211: implement HE support for mesh
Implement the basics required for supporting high efficiency with mesh:
include HE information elements in beacons, probe responses, and peering
action frames, and check for compatible HE configurations when peering.

Signed-off-by: Sven Eckelmann <seckelmann@datto.com>

Forwarded: https://patchwork.kernel.org/patch/11029299/
Link: https://lore.kernel.org/r/20190724163359.3507-2-sven@narfation.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 16:14:12 +02:00
Lorenzo Bianconi
a0b4496a43 mac80211: add IEEE80211_KEY_FLAG_GENERATE_MMIE to ieee80211_key_flags
Add IEEE80211_KEY_FLAG_GENERATE_MMIE flag to ieee80211_key_flags in order
to allow the driver to notify mac80211 to generate MMIE and that it
requires sequence number generation only.
This is a preliminary patch to add BIP_CMAC_128 hw support to mt7615
driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/dfe275f9aa0f1cc6b33085f9efd5d8447f68ad13.1563228405.git.lorenzo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 16:14:12 +02:00
John Crispin
ef11a931bd mac80211: HE: add Spatial Reuse element parsing support
Add support to mac80211 for parsing SPR elements as per
P802.11ax_D4.0 section 9.4.2.241.

Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/20190618061915.7102-2-john@phrozen.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 16:14:12 +02:00
John Crispin
3d07ffcaf3 mac80211: add struct ieee80211_tx_status support to ieee80211_add_tx_radiotap_header
Add support to ieee80211_add_tx_radiotap_header() for handling rates
reported via ieee80211_tx_status. This allows us to also report HE rates.

Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/20190714154419.11854-4-john@phrozen.org
[remove text about 60 GHz, mac80211 doesn't support it, fix endianness issue]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 16:14:06 +02:00
John Crispin
b7b2e8caa0 mac80211: propagate struct ieee80211_tx_status into ieee80211_tx_monitor()
This will allow use to report HE rates on the radiotap interface.

Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/20190714154419.11854-3-john@phrozen.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:41:45 +02:00
John Crispin
cbe77dde47 mac80211: add xmit rate to struct ieee80211_tx_status
Right now struct ieee80211_tx_rate cannot hold HE rates. Lets use
struct ieee80211_tx_status instead. This will also make the code
future-proof for when we have EHT.

Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/20190714154419.11854-2-john@phrozen.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:41:45 +02:00
John Crispin
2aa485e114 mac80211: add support for parsing ADDBA_EXT IEs
ADDBA_EXT IEs can be used to negotiate the BA fragmentation level.

Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/20190713163642.18491-2-john@phrozen.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:32:07 +02:00
Johannes Berg
60d7dfea00 cfg80211: give all multi-BSSID BSS entries the same timestamp
If we just read jiffies over and over again, a non-transmitting
entry may have a newer timestamp than the transmitting one,
leading to possible confusion on expiry. Give them all the same
timestamp when creating them.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20190703133823.10530-3-johannes@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:31:46 +02:00
Johannes Berg
b0d1d7ffc5 cfg80211: don't parse MBSSID if transmitting BSS isn't created
Don't parse the multi-BSSID structures if we couldn't even create
their transmitting BSS, this would confuse all of our tracking.

This also means that non_tx_data->tx_bss will never be NULL, so
we can clean up a little bit.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20190703133823.10530-2-johannes@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:31:30 +02:00
Johannes Berg
84f1772bc0 cfg80211: clean up cfg80211_inform_single_bss_frame_data()
cfg80211_inform_single_bss_frame_data() doesn't need the
non_tx_data data argument since it's always NULL.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20190703133823.10530-1-johannes@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:31:00 +02:00
Greg Kroah-Hartman
d82574a8e5 cfg80211: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190703070142.GA29993@kroah.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:30:43 +02:00
Alexander Wetzel
dc3998ec5c mac80211: AMPDU handling for rekeys with Extended Key ID
Extended Key ID allows A-MPDU sessions while rekeying as long as each
A-MPDU aggregates only MPDUs with one keyid together.

Drivers able to segregate MPDUs accordingly can tell mac80211 to not
stop A-MPDU sessions when rekeying by setting the new flag
IEEE80211_HW_AMPDU_KEYBORDER_SUPPORT.

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
Link: https://lore.kernel.org/r/20190629195015.19680-3-alexander@wetzel-home.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:29:10 +02:00
Alexander Wetzel
3e47bf1ca4 mac80211: Simplify Extended Key ID API
1) Drop IEEE80211_HW_EXT_KEY_ID_NATIVE and let drivers directly set
   the NL80211_EXT_FEATURE_EXT_KEY_ID flag.

2) Drop IEEE80211_HW_NO_AMPDU_KEYBORDER_SUPPORT and simply assume all
   drivers are unable to handle A-MPDU key borders.

The new Extended Key ID API now requires all mac80211 drivers to set
NL80211_EXT_FEATURE_EXT_KEY_ID when they implement set_key() and can
handle Extended Key ID. For drivers not providing set_key() mac80211
itself enables Extended Key ID support, using the internal SW crypto
services.

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
Link: https://lore.kernel.org/r/20190629195015.19680-2-alexander@wetzel-home.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:28:59 +02:00
Alexander Wetzel
5d29050b40 mac80211_hwsim: Extended Key ID API update
Prepare hwsim Extended Key ID support for a mac80211 API change.

The mac80211 flag IEEE80211_HW_EXT_KEY_ID_NATIVE is being replaced by
NL80211_EXT_FEATURE_EXT_KEY_ID which only must be set by drivers when
they support HW crypto.

This reverts commit cfe7007a9b ("mac80211_hwsim: Extended Key ID support").

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
Link: https://lore.kernel.org/r/20190629195015.19680-1-alexander@wetzel-home.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:28:42 +02:00
Erik Stromdahl
fb0e76abe3 mac80211: add tx dequeue function for process context
Since ieee80211_tx_dequeue() must not be called with softirqs enabled
(i.e. from process context without proper disable of bottom halves),
we add a wrapper that disables bottom halves before calling
ieee80211_tx_dequeue()

The new function is named ieee80211_tx_dequeue_ni() just as all other
from-process-context versions found in mac80211.

The documentation of ieee80211_tx_dequeue() is also updated so it
mentions that the function should not be called from process context.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
Link: https://lore.kernel.org/r/20190617200140.6189-1-erik.stromdahl@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:23:19 +02:00
Ard Biesheuvel
a11e2f8548 lib80211: use crypto API ccm(aes) transform for CCMP processing
Instead of open coding the CCM aead mode in the driver, and invoking
the AES block cipher block by block, use a ccm(aes) aead transform
which already encapsulates this functionality. This is a cleaner use
of the crypto API, and permits optimized implementations to be used,
which are typically much faster and deal more efficiently with the
SIMD register file, which usually needs to be preserved/restored in
order to use special AES instructions.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Link: https://lore.kernel.org/r/20190617091901.7063-1-ard.biesheuvel@linaro.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:22:47 +02:00
Greg Kroah-Hartman
612fcfd9b3 mac80211: remove unused and unneeded remove_sta_debugfs callback
The remove_sta_debugfs callback in struct rate_control_ops is no longer
used by any driver, as there is no need for it (the debugfs directory is
already removed recursivly by the mac80211 core.)  Because no one needs
it, just remove it to keep anyone else from accidentally using it in the
future.

Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190612142658.12792-5-gregkh@linuxfoundation.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:21:12 +02:00
Greg Kroah-Hartman
09e1946cb7 iwlwifi: mvm: remove unused .remove_sta_debugfs callback
The .remove_sta_debugfs callback was not doing anything in this driver,
so remove it as it is not needed.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190612142658.12792-4-gregkh@linuxfoundation.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:21:06 +02:00
Greg Kroah-Hartman
49175fe63e iwlwifi: dvm: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the
return value.  This driver was saving the debugfs file away to be
removed at a later time.  However, the 80211 core would delete the whole
directory that the debugfs files are created in, after it asks the
driver to do the deletion, so just rely on the 80211 core to do all of
the cleanup for us, making us not need to keep a pointer to the dentries
around at all.

This cleans up the structure of the driver data a bit and makes the code
a tiny bit smaller.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190612142658.12792-3-gregkh@linuxfoundation.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:21:00 +02:00
Emmanuel Grumbach
5db4c4b955 mac80211: pass the vif to cancel_remain_on_channel
This low level driver can find it useful to get the vif
when a remain on channel session is cancelled.

iwlwifi will need this soon.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Link: https://lore.kernel.org/r/20190723180001.5828-1-emmanuel.grumbach@intel.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:08:28 +02:00
Christophe JAILLET
690c4509e9 mac80211_hwsim: Fix a typo in the name of function 'mac80211_hswim_he_capab()'
This function name should be 'mac80211_hwsim_he_capab()' (s wand w
switched) to be consistent with the rest of the file.
Fix and use it.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20190725191328.18010-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-07-26 13:07:51 +02:00
Jisheng Zhang
00c33afbf9 net: mvneta: use devm_platform_ioremap_resource() to simplify code
devm_platform_ioremap_resource() wraps platform_get_resource() and
devm_ioremap_resource() in a single helper, let's use that helper to
simplify the code.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25 17:28:11 -07:00
David S. Miller
b591c6f620 Merge branch 'tipc-link-changeover-issues'
Tuong Lien says:

====================
tipc: link changeover issues

This patch series is to resolve some issues found with the current link
changeover mechanism, it also includes an optimization for the link
synching.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25 15:55:47 -07:00
Tuong Lien
2320bcdae6 tipc: fix changeover issues due to large packet
In conjunction with changing the interfaces' MTU (e.g. especially in
the case of a bonding) where the TIPC links are brought up and down
in a short time, a couple of issues were detected with the current link
changeover mechanism:

1) When one link is up but immediately forced down again, the failover
procedure will be carried out in order to failover all the messages in
the link's transmq queue onto the other working link. The link and node
state is also set to FAILINGOVER as part of the process. The message
will be transmited in form of a FAILOVER_MSG, so its size is plus of 40
bytes (= the message header size). There is no problem if the original
message size is not larger than the link's MTU - 40, and indeed this is
the max size of a normal payload messages. However, in the situation
above, because the link has just been up, the messages in the link's
transmq are almost SYNCH_MSGs which had been generated by the link
synching procedure, then their size might reach the max value already!
When the FAILOVER_MSG is built on the top of such a SYNCH_MSG, its size
will exceed the link's MTU. As a result, the messages are dropped
silently and the failover procedure will never end up, the link will
not be able to exit the FAILINGOVER state, so cannot be re-established.

2) The same scenario above can happen more easily in case the MTU of
the links is set differently or when changing. In that case, as long as
a large message in the failure link's transmq queue was built and
fragmented with its link's MTU > the other link's one, the issue will
happen (there is no need of a link synching in advance).

3) The link synching procedure also faces with the same issue but since
the link synching is only started upon receipt of a SYNCH_MSG, dropping
the message will not result in a state deadlock, but it is not expected
as design.

The 1) & 3) issues are resolved by the last commit that only a dummy
SYNCH_MSG (i.e. without data) is generated at the link synching, so the
size of a FAILOVER_MSG if any then will never exceed the link's MTU.

For the 2) issue, the only solution is trying to fragment the messages
in the failure link's transmq queue according to the working link's MTU
so they can be failovered then. A new function is made to accomplish
this, it will still be a TUNNEL PROTOCOL/FAILOVER MSG but if the
original message size is too large, it will be fragmented & reassembled
at the receiving side.

Acked-by: Ying Xue <ying.xue@windriver.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25 15:55:47 -07:00
Tuong Lien
4929a932be tipc: optimize link synching mechanism
This commit along with the next one are to resolve the issues with the
link changeover mechanism. See that commit for details.

Basically, for the link synching, from now on, we will send only one
single ("dummy") SYNCH message to peer. The SYNCH message does not
contain any data, just a header conveying the synch point to the peer.

A new node capability flag ("TIPC_TUNNEL_ENHANCED") is introduced for
backward compatible!

Acked-by: Ying Xue <ying.xue@windriver.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Suggested-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25 15:55:47 -07:00
Ding Xiang
37f7c66f45 ptp: ptp_dte: remove redundant dev_err message
devm_ioremap_resource already contains error message, so remove
the redundant dev_err message

Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25 11:37:40 -07:00
David S. Miller
f2ad83af32 Merge branch 'mlxsw-Two-small-updates'
Ido Schimmel says:

====================
mlxsw: Two small updates

Patch #1, from Amit, exposes the size of the key-value database (KVD)
where different entries (e.g., routes, neighbours) are stored in the
device. This allows users to understand how many entries can be
offloaded and is also useful for writing scale tests.

Patch #2 increases the number of IPv6 nexthop groups mlxsw can offload.
The problem and solution are explained in detail in the commit message.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25 11:36:19 -07:00
Ido Schimmel
fc25996e6f mlxsw: spectrum_router: Increase scale of IPv6 nexthop groups
Unlike IPv4, the kernel does not consolidate IPv6 nexthop groups. To
avoid exhausting the device's adjacency table - where nexthops are
stored - the driver does this consolidation instead.

Each nexthop group is hashed by XOR-ing the interface indexes of all the
member nexthop devices. However, the ifindex itself is not hashed, which
can result in identical keys used for different groups and finally an
-EBUSY error from rhashtable due to too long objects list.

Improve the situation by hashing the ifindex itself.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25 11:36:19 -07:00
Amit Cohen
b06689cc1b mlxsw: spectrum: Expose KVD size for Spectrum-2
Unlike Spectrum-1, the KVD (Key-value database) of Spectrum-2 is not
partitioned, so only expose the entire KVD size. This enables users to
query the total size of the KVD.

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25 11:36:19 -07:00
Wolfram Sang
c93496e9f7 net: sfc: falcon: convert to i2c_new_dummy_device
Move from i2c_new_dummy() to i2c_new_dummy_device(). So, we now get an
ERRPTR which we use in error handling.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-25 11:19:19 -07:00
Arnd Bergmann
9eed21c01c mlx4: avoid large stack usage in mlx4_init_hca()
The mlx4_dev_cap and mlx4_init_hca_param are really too large
to be put on the kernel stack, as shown by this clang warning:

drivers/net/ethernet/mellanox/mlx4/main.c:3304:12: error: stack frame size of 1088 bytes in function 'mlx4_load_one' [-Werror,-Wframe-larger-than=]

With gcc, the problem is the same, but it does not warn because
it does not inline this function, and therefore stays just below
the warning limit, while clang is just above it.

Use kzalloc for dynamic allocation instead of putting them
on stack. This gets the combined stack frame down to 424 bytes.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 15:46:49 -07:00
Arnd Bergmann
7c116e02a4 qed: reduce maximum stack frame size
clang warns about an overly large stack frame in one function
when it decides to inline all __qed_get_vport_*() functions into
__qed_get_vport_stats():

drivers/net/ethernet/qlogic/qed/qed_l2.c:1889:13: error: stack frame size of 1128 bytes in function '_qed_get_vport_stats' [-Werror,-Wframe-larger-than=]

Use a noinline_for_stack annotation to prevent clang from inlining
these, which keeps the maximum stack usage at around half of that
in the worst case, similar to what we get with gcc.

Fixes: 86622ee753 ("qed: Move statistics to L2 code")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 15:46:11 -07:00
Heiner Kallweit
81cd17a412 r8169: improve rtl_set_rx_mode
This patch improves and simplifies rtl_set_rx_mode a little.
No functional change intended.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 15:40:51 -07:00
David S. Miller
ce599b1a12 Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
1GbE Intel Wired LAN Driver Updates 2019-07-24

This series contains updates to igc and e1000e client drivers only.

Sasha provides a couple of cleanups to remove code that is not needed
and reduce structure sizes.  Updated the MAC reset flow to use the
device reset flow instead of a port reset flow.  Added addition device
id's that will be supported.

Kai-Heng Feng provides a workaround for a possible stalled packet issue
in our ICH devices due to a clock recovery from the PCH being too slow.

v2: removed the last patch in the series that supposedly fixed a MAC/PHY
    de-sync potential issue while waiting for additional information from
    hardware engineers.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 15:35:40 -07:00
Qian Cai
d601be9712 net/ixgbevf: fix a compilation error of skb_frag_t
The linux-next commit "net: Rename skb_frag_t size to bv_len" [1]
introduced a compilation error on powerpc as it forgot to deal with the
renaming from "size" to "bv_len" for ixgbevf.

[1] https://lore.kernel.org/netdev/20190723030831.11879-1-willy@infradead.org/T/#md052f1c7de965ccd1bdcb6f92e1990a52298eac5

In file included from ./include/linux/cache.h:5,
                 from ./include/linux/printk.h:9,
                 from ./include/linux/kernel.h:15,
                 from ./include/linux/list.h:9,
                 from ./include/linux/module.h:9,
                 from
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:12:
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c: In function
'ixgbevf_xmit_frame_ring':
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:4138:51: error:
'skb_frag_t' {aka 'struct bio_vec'} has no member named 'size'
   count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size);
                                                   ^
./include/uapi/linux/kernel.h:13:40: note: in definition of macro
'__KERNEL_DIV_ROUND_UP'
 #define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
                                        ^
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:4138:12: note: in
expansion of macro 'TXD_USE_COUNT'
   count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size);

Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 15:28:43 -07:00
Masanari Iida
e62088ea6a selftests: mlxsw: Fix typo in qos_mc_aware.sh
This patch fix some spelling typo in qos_mc_aware.sh

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 14:51:10 -07:00
YueHaibing
2ec0a89091 qlge: Fix build error without CONFIG_ETHERNET
Now if CONFIG_ETHERNET is not set, QLGE driver
building fails:

drivers/staging/qlge/qlge_main.o: In function `qlge_remove':
drivers/staging/qlge/qlge_main.c:4831: undefined reference to `unregister_netdev'

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 955315b0dc ("qlge: Move drivers/net/ethernet/qlogic/qlge/ to drivers/staging/qlge/")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 14:12:40 -07:00
Corentin Musard
ed72a9bb9a r8169: fix a typo in a comment
Replace "additonal" by "additional" in a comment.
Typo found by checkpatch.pl.

Signed-off-by: Corentin Musard <corentinmusard@gmail.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-24 14:11:03 -07:00
Kai-Heng Feng
e5e9a2ecfe e1000e: add workaround for possible stalled packet
This works around a possible stalled packet issue, which may occur due to
clock recovery from the PCH being too slow, when the LAN is transitioning
from K1 at 1G link speed.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204057

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-07-24 13:55:09 -07:00
Sasha Neftin
6d37a38243 igc: Add more SKUs for i225 device
Add support for more SKUs.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-07-24 13:55:09 -07:00
Sasha Neftin
bb4265ec24 igc: Update the MAC reset flow
Use Device Reset flow instead of Port Reset flow.
This flow performs a reset of the entire controller device,
resulting in a state nearly approximating the state
following a power-up reset or internal PCIe reset,
except for system PCI configuration.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-07-24 13:55:09 -07:00
Sasha Neftin
6145787d5e igc: Remove the unused field from a device specification structure
This patch comes to clean up the device specification structure.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-07-24 13:55:09 -07:00