Commit Graph

61884 Commits

Author SHA1 Message Date
Florian Fainelli de702da7a8 et131x: Fix logical vs bitwise check in et131x_tx_timeout()
We should be using a logical check here instead of a bitwise operation
to check if the device is closed already in et131x_tx_timeout().

Reported-by: coverity (CID 146498)
Fixes: 38df6492eb ("et131x: Add PCIe gigabit ethernet driver et131x to drivers/net")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-16 22:04:19 -07:00
Philippe Reynes b3f2cf8fee net: usb: ax88172x: use phy_ethtool_{get|set}_link_ksettings
There are two generics functions phy_ethtool_{get|set}_link_ksettings,
so we can use them instead of defining the same code in the driver.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-16 21:54:40 -07:00
Dongpo Li 542ae60af2 net: hisilicon: Add Fast Ethernet MAC driver
This patch adds the Hisilicon Fast Ethernet MAC(FEMAC) driver.
The FEMAC supports max speed 100Mbps and has been used in many
Hisilicon SoC.

Signed-off-by: Dongpo Li <lidongpo@hisilicon.com>
Reviewed-by: Jiancheng Xue <xuejiancheng@hisilicon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-16 21:32:58 -07:00
Dongpo Li 4960e4b1e6 net: Add MDIO bus driver for the Hisilicon FEMAC
This patch adds a separate driver for the MDIO interface of the
Hisilicon Fast Ethernet MAC.

Signed-off-by: Dongpo Li <lidongpo@hisilicon.com>
Reviewed-by: Jiancheng Xue <xuejiancheng@hisilicon.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-16 21:32:58 -07:00
Uwe Kleine-König 8d8836d4dc net: cpsw: make TI_CPSW_PHY_SEL invisible
TI_CPSW_PHY_SEL depended on TI_CPSW and was selected by the latter. So
there is no reason to have this symbol visible.

A further optimisation would be to put the code for both symbols into a
single module which would allow to not export at least cpsw_phy_sel()
and simplify the module load process.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-16 21:27:43 -07:00
Zhao Qiang 1efb597d8b wan/fsl_ucc_hdlc: rewrite error handling to make it clearer
It was used err_xxx for labeled statement, it is
not easy to understand, now use free_xxx for labeled
statement.

Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-16 20:22:02 -07:00
Zhao Qiang 18210510cf wan/fsl_ucc_hdlc: remove reduplicative freed memory 'uhdlc_priv'
'uhdlc_priv' has freed twice, drop the first one.

Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-16 20:22:02 -07:00
Kristian Evensen a5a18bdf74 rndis_host: Set valid random MAC on buggy devices
Some devices of the same type all export the same, random MAC address. This
behavior has been seen on the ZTE MF910, MF823 and MF831, and there are
probably more devices out there. Fix this by generating a valid random MAC
address if we read a random MAC from device.

Also, changed the memcpy() to ether_addr_copy(), as pointed out by
checkpatch.

Suggested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-16 20:03:04 -07:00
Philippe Reynes 7dc0993452 net: ethernet: ti: cpmac: use phy_ethtool_{get|set}_link_ksettings
There are two generics functions phy_ethtool_{get|set}_link_ksettings,
so we can use them instead of defining the same code in the driver.

There was a check on CAP_NET_ADMIN in cpmac_set_settings, but this
check is already done in dev_ethtool, so no need to repeat it before
calling the generic function.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:36 -07:00
Philippe Reynes b401a9bce7 net: ethernet: ti: cpmac: use phydev from struct net_device
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phy in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:35 -07:00
Philippe Reynes b4cafd8c49 net: ethernet: amd: au1000_eth: use phy_ethtool_{get|set}_link_ksettings
There are two generics functions phy_ethtool_{get|set}_link_ksettings,
so we can use them instead of defining the same code in the driver.

There was a check on CAP_NET_ADMIN in au1000_set_settings, but this
check is already done in dev_ethtool, so no need to repeat it before
calling the generic function.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:35 -07:00
Philippe Reynes 1e8b73896f net: ethernet: amd: au1000_eth: use phydev from struct net_device
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phydev in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:35 -07:00
Philippe Reynes a1b198b716 net: ethernet: smsc9420: use phy_ethtool_{get|set}_link_ksettings
There are two generics functions phy_ethtool_{get|set}_link_ksettings,
so we can use them instead of defining the same code in the driver.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:35 -07:00
Philippe Reynes 5d872c506f net: ethernet: smsc9420: use phydev from struct net_device
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phy in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:35 -07:00
Philippe Reynes 87e544bfd5 net: ethernet: ethoc: use phy_ethtool_{get|set}_link_ksettings
There are two generics functions phy_ethtool_{get|set}_link_ksettings,
so we can use them instead of defining the same code in the driver.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:35 -07:00
Philippe Reynes 11331fc294 net: ethernet: ethoc: use phydev from struct net_device
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phy in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:34 -07:00
Philippe Reynes 6cf285de02 net: ethernet: pasemi_mac: use phy_ethtool_{get|set}_link_ksettings
There are two generics functions phy_ethtool_{get|set}_link_ksettings,
so we can use them instead of defining the same code in the driver.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:34 -07:00
Philippe Reynes 80721e7fa6 net: ethernet: pasemi_mac: use phydev from struct net_device
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phy in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:34 -07:00
Philippe Reynes 6e3848404d net: ethernet: xilinx: axienet: use phy_ethtool_{get|set}_link_ksettings
There are two generics functions phy_ethtool_{get|set}_link_ksettings,
so we can use them instead of defining the same code in the driver.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:34 -07:00
Philippe Reynes b1b7dcffed net: ethernet: xilinx: axienet: use phydev from struct net_device
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phy in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:34 -07:00
Philippe Reynes 3a11d9ef65 net: ethernet: tc35815: use phy_ethtool_{get|set}_link_ksettings
There are two generics functions phy_ethtool_{get|set}_link_ksettings,
so we can use them instead of defining the same code in the driver.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:33 -07:00
Philippe Reynes a4fc549af8 net: ethernet: tc35815: use phydev from struct net_device
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phy in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:41:33 -07:00
Florian Fainelli e86663c475 net: bgmac: Fix infinite loop in bgmac_dma_tx_add()
Nothing is decrementing the index "i" while we are cleaning up the
fragments we could not successful transmit.

Fixes: 9cde94506e ("bgmac: implement scatter/gather support")
Reported-by: coverity (CID 1352048)
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 16:03:47 -07:00
Ido Schimmel 11719a58bd mlxsw: spectrum: Prevent invalid ingress buffer mapping
Packets entering the switch are mapped to a Switch Priority (SP)
according to their PCP value (untagged frames are mapped to SP 0).

The packets are classified to a priority group (PG) buffer in the port's
headroom according to their SP.

The switch maintains another mapping (SP to IEEE priority), which is
used to generate PFC frames for lossless PGs. This mapping is
initialized to IEEE = SP % 8.

Therefore, when mapping SP 'x' to PG 'y' we create a situation in which
an IEEE priority is mapped to two different PGs:

IEEE 'x' ---> SP 'x' ---> PG 'y'
IEEE 'x' ---> SP 'x + 8' ---> PG '0' (default)

Which is invalid, as a flow can use only one PG buffer.

Fix this by mapping both SP 'x' and 'x + 8' to the same PG buffer.

Fixes: 8e8dfe9fdf ("mlxsw: spectrum: Add IEEE 802.1Qaz ETS support")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 14:49:51 -07:00
Ido Schimmel 28f5275e4a mlxsw: spectrum: Prevent overwrite of DCB capability fields
The number of supported traffic classes that can have ETS and PFC
simultaneously enabled is not subject to user configuration, so make
sure we always initialize them to the correct values following a set
operation.

Fixes: 8e8dfe9fdf ("mlxsw: spectrum: Add IEEE 802.1Qaz ETS support")
Fixes: d81a6bdb87 ("mlxsw: spectrum: Add IEEE 802.1Qbb PFC support")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 14:49:51 -07:00
Ido Schimmel 7347180dca mlxsw: spectrum: Don't emit errors when PFC is disabled
We can't have PAUSE frames and PFC both enabled on the same port, but
the fact that ieee_setpfc() was called doesn't necessarily mean PFC is
enabled.

Only emit errors when PAUSE frames and PFC are enabled simultaneously.

Fixes: d81a6bdb87 ("mlxsw: spectrum: Add IEEE 802.1Qbb PFC support")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 14:49:51 -07:00
Ido Schimmel c3f1576810 mlxsw: spectrum: Indicate support for autonegotiation
The device supports link autonegotiation, so let the user know about it
by indicating support via ethtool ops.

Fixes: 56ade8fe3f ("mlxsw: spectrum: Add initial support for Spectrum ASIC")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 14:49:50 -07:00
Ido Schimmel 6277d46b10 mlxsw: spectrum: Force link training according to admin state
When setting a new speed we need to disable and enable the port for the
changes to take effect. We currently only do that if the operational
state of the port is up. However, setting a new speed following link
training failure will require us to explicitly set the port down and then
up.

Instead, disable and enable the port based on its administrative state.

Fixes: 56ade8fe3f ("mlxsw: spectrum: Add initial support for Spectrum ASIC")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 14:49:50 -07:00
Jason Wang 362899b872 macvtap: switch to use skb array
This patch switch to use skb array instead of sk_receive_queue to
avoid spinlock contentions. Tests shows about 21% improvements for
guest rx pps:

Before: 1472731 pkts/s
After:  1786289 pkts/s

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 14:40:39 -07:00
Jason Wang 1b16bf42d1 macvtap: avoid hash calculating for single queue
We decide the rxq through calculating its hash which is not necessary
if we only have one rx queue. So this patch skip this and just return
queue 0. Test shows 22% improving on guest rx pps.

Before: 1201504 pkts/s
After:  1472731 pkts/s

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 14:40:39 -07:00
David S. Miller dd79cf7dd1 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2016-07-14

This series contains fixes to i40e and ixgbe.

Alex fixes issues found in i40e_rx_checksum() which was broken, where the
checksum was being returned valid when it was not.

Kiran fixes a bug which was found when we abruptly remove a cable which
caused a panic.  Set the VSI broadcast promiscuous mode during VSI add
sequence and prevents adding MAC filter if specified MAC address is
broadcast.

Paolo Abeni fixes a bug by returning the actual work done, capped to
weight - 1, since the core doesn't allow to return the full budget when
the driver modifies the NAPI status.

Guilherme Piccoli fixes an issue where the q_vector initialization
routine sets the affinity _mask of a q_vector based on v_idx value.
This means a loop iterates on v_idx, which is an incremental value, and
the cpumask is created based on this value.  This is a problem in
systems with multiple logical CPUs per core (like in SMT scenarios).
Changed the way q_vector's affinity_mask is created to resolve the issue.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 14:27:44 -07:00
Grant Grundler c961e877cf r8152: add MODULE_VERSION
ethtool -i provides a driver version that is hard coded.
Export the same value via "modinfo".

Signed-off-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 14:25:30 -07:00
Philipp Zabel 77501a79ce net: phy: micrel: Add KSZ8041FTL fiber mode support
We can't detect the FXEN (fiber mode) bootstrap pin, so configure
it via a boolean device tree property "micrel,fiber-mode".
If it is enabled, auto-negotiation is not supported.
The only available modes are 100base-fx (full duplex and half duplex).

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 11:53:02 -07:00
Dan Carpenter 2f43b9beea wan/fsl_ucc_hdlc: info leak in uhdlc_ioctl()
There is a 2 byte struct whole after line.loopback so we need to clear
that out to avoid disclosing stack information.

Fixes: c19b6d246a ('drivers/net: support hdlc function for QE-UCC')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 11:42:42 -07:00
Guilherme G. Piccoli 7f6c553902 i40e: use valid online CPU on q_vector initialization
Currently, the q_vector initialization routine sets the affinity_mask
of a q_vector based on v_idx value. Meaning a loop iterates on v_idx,
which is an incremental value, and the cpumask is created based on
this value.

This is a problem in systems with multiple logical CPUs per core (like in
SMT scenarios). If we disable some logical CPUs, by turning SMT off for
example, we will end up with a sparse cpu_online_mask, i.e., only the first
CPU in a core is online, and incremental filling in q_vector cpumask might
lead to multiple offline CPUs being assigned to q_vectors.

Example: if we have a system with 8 cores each one containing 8 logical
CPUs (SMT == 8 in this case), we have 64 CPUs in total. But if SMT is
disabled, only the 1st CPU in each core remains online, so the
cpu_online_mask in this case would have only 8 bits set, in a sparse way.

In general case, when SMT is off the cpu_online_mask has only C bits set:
0, 1*N, 2*N, ..., C*(N-1)  where
C == # of cores;
N == # of logical CPUs per core.
In our example, only bits 0, 8, 16, 24, 32, 40, 48, 56 would be set.

This patch changes the way q_vector's affinity_mask is created: it iterates
on v_idx, but consumes the CPU index from the cpu_online_mask instead of
just using the v_idx incremental value.

No functional changes were introduced.

Signed-off-by: Guilherme G Piccoli <gpiccoli@linux.vnet.ibm.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-14 23:39:12 -07:00
Paolo Abeni 4b732cd4bb ixgbe: napi_poll must return the work done
Currently the function ixgbe_poll() returns 0 when it clean completely
the rx rings, but this foul budget accounting in core code.
Fix this returning the actual work done, capped to weight - 1, since
the core doesn't allow to return the full budget when the driver modifies
the napi status

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Venkatesh Srinivas <venkateshs@google.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-14 23:34:52 -07:00
Kiran Patil f6bd09625b i40e: enable VSI broadcast promiscuous mode instead of adding broadcast filter
This patch sets VSI broadcast promiscuous mode during VSI add sequence
and prevents adding MAC filter if specified MAC address is broadcast.

Change-ID: Ia62251fca095bc449d0497fc44bec3a5a0136773
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-14 23:26:59 -07:00
Alexander Duyck 858296c878 i40e/i40evf: Fix i40e_rx_checksum
There are a couple of issues I found in i40e_rx_checksum while doing some
recent testing.  As a result I have found the Rx checksum logic is pretty
much broken and returning that the checksum is valid for tunnels in cases
where it is not.

First the inner types are not the correct values to use to test for if a
tunnel is present or not.  In addition the inner protocol types are not a
bitmask as such performing an OR of the values doesn't make sense.  I have
instead changed the code so that the inner protocol types are used to
determine if we report CHECKSUM_UNNECESSARY or not.  For anything that does
not end in UDP, TCP, or SCTP it doesn't make much sense to report a
checksum offload since it won't contain a checksum anyway.

This leaves us with the need to set the csum_level based on some value.
For that purpose I am using the tunnel_type field.  If the tunnel type is
GRENAT or greater then this means we have a GRE or UDP tunnel with an inner
header.  In the case of GRE or UDP we will have a possible checksum present
so for this reason it should be safe to set the csum_level to 1 to indicate
that we are reporting the state of the inner header.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-14 23:17:45 -07:00
Christophe Jaillet a1e3e7372c mlxsw: spectrum_router: Return -ENOENT in case of error
'vr' should be a valid pointer here, so returning 'PTR_ERR(vr)' is wrong.
Return an explicit error code (-ENOENT) instead.

Fixes: 61c503f976 ("mlxsw: spectrum_router: Implement fib4 add/del switchdev obj ops")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 22:14:54 -07:00
Philippe Reynes e6dab9021f net: ethernet: ll_temac: use phy_ethtool_{get|set}_link_ksettings
There are two generics functions phy_ethtool_{get|set}_link_ksettings,
so we can use them instead of defining the same code in the driver.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 17:42:31 -07:00
Philippe Reynes 31abbe34e0 net: ethernet: ll_temac: use phydev from struct net_device
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phy in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 17:42:30 -07:00
David S. Miller 88b3ec5274 wireless-drivers-next patches for 4.8
Major changes:
 
 iwlwifi
 
 * more work on the RX path for the 9000 device series
 * some more dynamic queue allocation work
 * SAR BIOS implementation
 * some work on debugging capabilities
 * added support for GCMP encryption
 * data path rework in preparation for new HW
 * some cleanup to remove transport dependency on mac80211
 * support for MSIx in preparation for new HW
 * lots of work in preparation for HW support (9000 and a000 series)
 
 mwifiex
 
 * implement get_tx_power and get_antenna cfg80211 operation callbacks
 
 wl18xx
 
 * add support for 64bit clock
 
 rtl8xxxu
 
 * aggregation support (optional for now)
 
 Also wireless-drivers is merged to fix some conflicts.
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Merge tag 'wireless-drivers-next-for-davem-2016-07-13' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.8

Major changes:

iwlwifi

* more work on the RX path for the 9000 device series
* some more dynamic queue allocation work
* SAR BIOS implementation
* some work on debugging capabilities
* added support for GCMP encryption
* data path rework in preparation for new HW
* some cleanup to remove transport dependency on mac80211
* support for MSIx in preparation for new HW
* lots of work in preparation for HW support (9000 and a000 series)

mwifiex

* implement get_tx_power and get_antenna cfg80211 operation callbacks

wl18xx

* add support for 64bit clock

rtl8xxxu

* aggregation support (optional for now)

Also wireless-drivers is merged to fix some conflicts.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 16:32:27 -07:00
Beniamino Galvani 005db31d5f bonding: set carrier off for devices created through netlink
Commit e826eafa65 ("bonding: Call netif_carrier_off after
register_netdevice") moved netif_carrier_off() from bond_init() to
bond_create(), but the latter is called only for initial default
devices and ones created through sysfs:

 $ modprobe bonding
 $ echo +bond1 > /sys/class/net/bonding_masters
 $ ip link add bond2 type bond
 $ grep "MII Status" /proc/net/bonding/*
 /proc/net/bonding/bond0:MII Status: down
 /proc/net/bonding/bond1:MII Status: down
 /proc/net/bonding/bond2:MII Status: up

Ensure that carrier is initially off also for devices created through
netlink.

Signed-off-by: Beniamino Galvani <bgalvani@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 16:17:43 -07:00
Or Gerlitz d957b4e383 net/mlx5e: Add TC offload support for the VF representors netdevice
The VF representors support only TC filter/action offloads
(not mqprio) and this is enabled for them by default.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 13:34:29 -07:00
Or Gerlitz adb4c123f8 net/mlx5e: Add TC HW support for FDB (SRIOV e-switch) offloads
Enhance the TC offload code such that when the eswitch exists and it's
mode being SRIOV offloads, we do TC actions parsing and setup targeted
for eswitch. Next, we add the offloaded flow to the HW e-switch (fdb).

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 13:34:29 -07:00
Or Gerlitz 03a9d11e6e net/mlx5e: Add TC drop and mirred/redirect action parsing for SRIOV offloads
Add the setup code that parses the TC actions needed to support offloading drop
and mirred/redirect for SRIOV e-switch. We can redirect between two devices if
they belong to the same HW switch, compare the switchdev HW ID attribute to
enforce that.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 13:34:29 -07:00
Or Gerlitz 5c40348c69 net/mlx5e: Adjustments in the TC offload code towards reuse for SRIOV
Towards reusing the TC offloads code for an SRIOV use-case, change some of the
helper functions to have _nic in their names so it's clear what's NIC unique
and what's general. Also group together the NIC related helpers so we can easily
branch per the use-case in downstream patch.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 13:34:29 -07:00
Or Gerlitz 3d80d1a2f5 net/mlx5: E-Switch, Add API to configure rules for the offloaded mode
This allows for upper levels in the driver, e.g the TC offload code to add
e-switch offloaded steering rules. The caller provides the rule spec for
matching, action, source and destination vports.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 13:34:28 -07:00
Or Gerlitz 1033665e63 net/mlx5: E-Switch, Use two priorities for SRIOV offloads mode
In the offloads mode, some slow path rules are added by the driver (e.g
send-to-vport), while offloaded rules are to be added from upper layers.

The slow path rules have lower priority and we don't want matching on
offloaded rules to suffer from extra steering hops related to the slow
path rules.

We use two priorities, one for offloaded rules (fast path), and one for
the control rules (slow path). To allow for that, we enable two priorities
for the FDB namespace in the FS core code.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 13:34:28 -07:00
Or Gerlitz 5513028787 net/mlx5e: Offload TC flow counters only when supported
Currenly, the code that programs the flow actions into the firmware
doesn't check if was actually asked to offload the statistics, fix that.

Fixes: aad7e08d39 ('net/mlx5e: Hardware offloaded flower filter statistics support')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 13:34:28 -07:00
Amir Vadai a351a1b03b net/mlx5: Introduce bulk reading of flow counters
This commit utilize the ability of ConnectX-4 to bulk read flow counters.
Few bulk counter queries could be done instead of issuing thousands of
firmware commands per second to get statistics of all flows set to HW,
such as those programmed when we offload tc filters.

Counters are stored sorted by hardware id, and queried in blocks (id +
number of counters).

Due to hardware requirement, start of block and number of counters in a
block must be four aligned.

Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Amir Vadai <amir@vadai.me>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 13:34:28 -07:00
Amir Vadai 29cc667907 net/mlx5: Store counters in rbtree instead of list
In order to use bulk counters, we need to have counters sorted by id.

Signed-off-by: Amir Vadai <amir@vadai.me>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-14 13:34:28 -07:00
Elad Kanfi 094f57aafa net: nps_enet: code reuse
Add inline function that checks if there is a pending tx packet.

Signed-off-by: Elad Kanfi <eladkan@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-13 20:59:06 -07:00
Elad Kanfi ddbff3e8dd net: nps_enet: fix coding style issues
Fix following coding style problems :

ERROR: else should follow close brace '}'
+	}
+	else { /* !dst_is_aligned */

WARNING: Missing a blank line after declarations
+			u32 buf = nps_enet_reg_get(priv, NPS_ENET_REG_RX_BUF);
+			put_unaligned_be32(buf, reg);

WARNING: Missing a blank line after declarations
+		u32 buf;
+		ioread32_rep(priv->regs_base + NPS_ENET_REG_RX_BUF, &buf, 1);

CHECK: Blank lines aren't necessary before a close brace '}'
+
+	}

total: 1 errors, 2 warnings, 1 checks, 683 lines checked

Signed-off-by: Elad Kanfi <eladkan@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-13 20:59:06 -07:00
Wei Yongjun ce3a380ddd net: ethernet: bgmac: Remove redundant dev_err call in bgmac_probe()
There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-13 18:07:56 -07:00
Wei Yongjun 3f30849f1f stmmac: dwmac-socfpga: remove redundant dev_err call in socfpga_dwmac_parse_data()
There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-13 18:07:56 -07:00
David S. Miller 0ba3deb346 Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:

====================
pull request: bluetooth-next 2016-07-13

Here's our main bluetooth-next pull request for the 4.8 kernel:

 - Fixes and cleanups in 802.15.4 and 6LoWPAN code
 - Fix out of bounds issue in btmrvl driver
 - Fixes to Bluetooth socket recvmsg return values
 - Use crypto_cipher_encrypt_one() instead of crypto_skcipher
 - Cleanup of Bluetooth connection sysfs interface
 - New Authentication failure reson code for Disconnected mgmt event
 - New USB IDs for Atheros, Qualcomm and Intel Bluetooth controllers

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-13 16:05:43 -07:00
Mohamad Haj Yahia c3b7c5c950 net/mlx5e: start/stop all tx queues upon open/close netdev
Start all tx queues (including inactive ones) when opening the netdev.
Stop all tx queues (including inactive ones) when closing the netdev.

This is a workaround for the tx timeout watchdog false alarm issue in
which the netdev watchdog is polling all the tx queues which may include
inactive queues and thus once lowering the real tx queues number
(ethtool -L) it will generate tx timeout watchdog false alarms.

Fixes: 3947ca1859 ('net/mlx5e: Implement ndo_tx_timeout callback')
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-13 11:38:16 -07:00
Daniel Jurgens 2c1ccc9937 net/mlx5e: Fix TX Timeout to detect queues stuck on BQL
Change netif_tx_queue_stopped to netif_xmit_stopped.  This will show
when queues are stopped due to byte queue limits.

Fixes: 3947ca1859 ('net/mlx5e: Implement ndo_tx_timeout callback')
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-13 11:38:16 -07:00
Florian Fainelli ee6c21b9c1 net: ethoc: Correctly pad short packets
Even though the hardware can be doing zero padding, we want the SKB to
be going out on the wire with the appropriate size. This fixes packet
truncations observed with e.g: ARP packets.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-12 23:13:01 -07:00
Florian Fainelli 386512d18b net: ethoc: Fix early error paths
In case any operation fails before we can successfully go the point
where we would register a MDIO bus, we would be going to an error label
which involves unregistering then freeing this yet to be created MDIO
bus. Update all error paths to go to label free which is the only one
valid until either the clock is enabled, or the MDIO bus is allocated
and registered. This fixes kernel oops observed while trying to
dereference the MDIO bus structure which is not yet allocated.

Fixes: a170285772 ("net: Add support for the OpenCores 10/100 Mbps Ethernet MAC.")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-12 23:13:01 -07:00
Jiri Pirko b38a75d2d3 mlxsw: core: Trace EMAD messages
Trace EMAD messages going down to HW and up from HW. Devlink needs to be
registered before EMAD init so the trace function can be called
with valid devlink handle.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
v1->v2:
- Use trace_devlink_hwmsg directly
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-12 14:20:18 -07:00
Noam Camus 136ab0d0e1 net: nps_enet: Fix PCS reset
During commit b54b8c2d6e
 ("net: ezchip: adapt driver to little endian architecture")
 adapting to little endian architecture,
 zeroing of controller was left out.

Signed-off-by: Elad Kanfi <eladkan@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-12 13:58:55 -07:00
Wei Yongjun a6acf68932 dwc_eth_qos: fix missing clk_disable_unprepare() on error in dwceqos_probe()
Fix missing clk_disable_unprepare() call before return
from dwceqos_probe() in the error handling case of invalid
fixed-link.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-12 11:07:38 -07:00
Wei Yongjun 379672deb2 net: mediatek: fix non static symbol warnings
Fixes the following sparse warnings:

drivers/net/ethernet/mediatek/mtk_eth_soc.c:79:5: warning:
 symbol '_mtk_mdio_write' was not declared. Should it be static?
drivers/net/ethernet/mediatek/mtk_eth_soc.c:98:5: warning:
 symbol '_mtk_mdio_read' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-12 11:07:38 -07:00
Wei Yongjun 2b8fb41844 stmmac: dwmac-socfpga: fix wrong pointer passed to PTR_ERR()
PTR_ERR should access the value just tested by IS_ERR, otherwise
the wrong error code will be returned.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-12 11:07:38 -07:00
Arnd Bergmann 25f700ef06 iwlwifi: add missing type declaration
The iwl-debug.h header relies in implicit inclusion of linux/device.h and
we get a lot of warnings without that:

drivers/net/wireless/intel/iwlwifi/iwl-debug.h:44:23: error: 'struct device' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
 void __iwl_err(struct device *dev, bool rfkill_prefix, bool only_trace,
                       ^~~~~~
In file included from drivers/net/wireless/intel/iwlwifi/iwl-eeprom-read.h:66:0,
                 from drivers/net/wireless/intel/iwlwifi/iwl-eeprom-read.c:68:
drivers/net/wireless/intel/iwlwifi/iwl-trans.h: In function 'iwl_trans_tx':
drivers/net/wireless/intel/iwlwifi/iwl-trans.h:1030:348: error: passing argument 1 of '__iwl_err' from incompatible pointer type [-Werror=incompatible-pointer-types]
   IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state);
                                                                                                                                                                                                                                                                                                                                                            ^
In file included from drivers/net/wireless/intel/iwlwifi/iwl-eeprom-read.c:67:0:
drivers/net/wireless/intel/iwlwifi/iwl-debug.h:44:6: note: expected 'struct device *' but argument is of type 'struct device *'
 void __iwl_err(struct device *dev, bool rfkill_prefix, bool only_trace,
      ^~~~~~~~~

The easiest workaround is to just declare 'struct device' before its first use,
rather than including the entire header file.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 21cb3222fe ("iwlwifi: decouple PCIe transport from mac80211")
Acked-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-12 14:51:57 +03:00
Walter Mack 3faf564372 mrf24j40: avoid uninitialized byte in SPI transfer to radio.
isr function issues SPI read command to mrf to obtain INTSTAT.
SPI transfer is 2 bytes, but value of 2nd byte is not defined.
This had the effect that only the first ISR worked as intended. The
second ISR read incorrect INTSTAT values. Observed on Raspberry PI B+.

Signed-off-by: Walter Mack <wmack@componentsw.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-07-12 11:54:53 +02:00
Wei Yongjun 12c2e32f14 net: ethernet: bgmac: Fix return value check in bgmac_probe()
In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-11 19:48:10 -07:00
Mario Limonciello 34ee32c9a5 r8152: Add support for setting pass through MAC address on RTL8153-AD
The RTL8153-AD supports a persistent system specific MAC address.
This means a device plugged into two different systems with host side
support will show different (but persistent) MAC addresses.

This information for the system's persistent MAC address is burned in when
the system HW is built and available under \_SB.AMAC in the DSDT at runtime.

This technology is currently implemented in the Dell TB15 and WD15 Type-C
docks.  More information is available here:
http://www.dell.com/support/article/us/en/04/SLN301147

Signed-off-by: Mario Limonciello <mario_limonciello@dell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-11 19:42:30 -07:00
David S. Miller cf81b2ccad b53: Fix build warning.
drivers/net/dsa/b53/b53_srab.c: In function 'b53_srab_probe':
>> drivers/net/dsa/b53/b53_srab.c:388:20: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      pdata->chip_id = (u32)of_id->data;
                       ^

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-11 14:30:52 -07:00
Colin Ian King f50cef6f77 nfp: check idx is -ENOSPC before using it is an index
idx can be returned as -ENOSPC, so we should check for this first
before using it as an index into nn->vxlan_usecnt[] to avoid an
out of bounds array offset read.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-11 13:52:00 -07:00
Jeremy Linton 8876d94b41 net: smc91x: ACPI Enable lan91x adapters
Enable lan91x adapters in some ARM machines and models
when booted with an ACPI kernel.

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-11 13:50:03 -07:00
Sabrina Dubroca e5de25dce9 drivers/net: fixup comments after "Future-proof tunnel offload handlers"
Some comments weren't updated to reflect the renaming of ndo's and the
change of arguments.

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-11 13:42:11 -07:00
Philippe Reynes bac65c4b39 Revert "net: ethernet: bcmgenet: use phy_ethtool_{get|set}_link_ksettings"
This reverts commit 4386f5662e ("net: ethernet: bcmgenet: use
phy_ethtool_{get|set}_link_ksettings")

This patch is wrong, the function phy_ethtool_{get|set}_link_ksettings
don't check if the device is running, but the driver bcmgenet need this
check.

The function {get|set}_settings need to access the mdio bus, and this
bus may only be used when the device is running. Otherwise, the clock
is disable and a mdio access will fail.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-11 12:57:09 -07:00
Florian Fainelli 991a36bb46 net: dsa: b53: Add support for BCM585xx/586xx/88312 integrated switch
Update the SRAB, core driver and binding document to support the
BCM585xx/586xx/88312 integrated switch (Northstar Plus SoCs family).

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-11 12:52:03 -07:00
Florian Fainelli fefae6909e net: dsa: b53: Allow SRAB driver to specify platform data
For Northstart Plus SoCs, we cannot detect the switch because only the
revision information is provied in the Management page, instead, rely on
Device Tree to tell us the chip id, and pass it down using the
b53_platform_data structure.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-11 12:52:03 -07:00
Colin Ian King f3ea3119ad bnxt_en: initialize rc to zero to avoid returning garbage
rc is not initialized so it can contain garbage if it is not
set by the call to bnxt_read_sfp_module_eeprom_info. Ensure
garbage is not returned by initializing rc to 0.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-11 12:41:36 -07:00
Luciano Coelho ad38844b8e iwlwifi: mvm: bump MAX firmware API for mvm devices
The driver is now ready to load the new firmware versions.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-11 14:15:38 +03:00
Tien Hock Loh fb3bbdb859 net: ethernet: Add TSE PCS support to dwmac-socfpga
This adds support for TSE PCS that uses SGMII adapter when the phy-mode of
the dwmac is set to sgmii.

Signed-off-by: Tien Hock Loh <thloh@altera.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-10 22:07:50 -07:00
Kalle Valo 8a185006bc Merge git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git
This is to fix some conflicts in iwlwifi.

Conflicts:
	drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
	drivers/net/wireless/intel/iwlwifi/mvm/scan.c
2016-07-10 21:07:29 +03:00
Jon Mason f6a95a2495 net: ethernet: bgmac: Add platform device support
The bcma portion of the driver has been split off into a bcma specific
driver.  This has been mirrored for the platform driver.  The last
references to the bcma core struct have been changed into a generic
function call.  These function calls are wrappers to either the original
bcma code or new platform functions that access the same areas via MMIO.
This necessitated adding function pointers for both platform and bcma to
hide which backend is being used from the generic bgmac code.

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 18:10:41 -04:00
Jon Mason db791eb297 net: ethernet: bgmac: convert to feature flags
The bgmac driver is using the bcma provides device ID and revision, as
well as the SoC ID and package, to determine which features are
necessary to enable, reset, etc in the driver.   In anticipation of
removing the bcma requirement for this driver, these must be changed to
not reference that struct.  In place of that, each "feature" has been
given a flag, and the flags are enabled for their respective device and
SoC.

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 18:10:41 -04:00
Jon Mason 55954f3bfd net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file
Move the BCMA MDIO phy into a separate file, as it is very tightly
coupled with the BCMA bus.  This will help with the upcoming BCMA
removal from the bgmac driver.  Optimally, this should be moved into
phy drivers, but it is too tightly coupled with the bgmac driver to
effectively move it without more changes to the driver.

Note: the phy_reset was intentionally removed, as the mdio phy subsystem
automatically resets the phy if a reset function pointer is present.  In
addition to the moving of the driver, this reset function is added.

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 18:10:41 -04:00
Jon Mason a0b68486f6 net: ethernet: bgmac: add dma_dev pointer
The dma buffer allocation, etc references a dma_dev device pointer from
the bcma core.  In anticipation of removing the bcma requirement for
this driver, these must be changed to not reference that struct.  Add a
dma_dev device pointer to the bgmac stuct and reference that instead.

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 18:10:40 -04:00
Jon Mason d00a8281bc net: ethernet: bgmac: change bgmac_* prints to dev_* prints
The bgmac_* print wrappers call dev_* prints with the dev pointer from
the bcma core.  In anticipation of removing the bcma requirement for
this driver, these must be changed to not reference that struct.  So,
simply change all of the bgmac_* prints to their dev_* counterparts.  In
some cases netdev_* prints are more appropriate, so change those as
well.

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 18:10:40 -04:00
hayeswang c23d86ae94 r8152: remove cancel_delayed_work_sync in rtl8152_set_speed
There is no conflict between the work_queue function and
rtl8152_set_speed(), so we don't have to cancel the delayed work in
rtl8152_set_speed().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 17:48:06 -04:00
hayeswang c79262f3f8 r8152: remove a netif_carrier_off in rtl8152_open function
After commit 90186af404 ("r8152: fix lockup when runtime PM is enabled"),
the autoresume wouldn't start the device before rtl8152_open() is finished.
Therefore, we don't have to reset the linking status before and after
autoresume. That is, one of netif_carrier_off() in rtl8152_open() could be
removed.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 17:48:05 -04:00
hayeswang b1648066b4 r8152: remove rtl_phy_reset function
In rtl_hw_phy_work_func_t(), the flag of PHY_RESET is set in
rtl_ops.hw_phy_cfg() and cleared in rtl8152_set_speed(). Therefore,
the rtl_phy_reset() is never run and is unnecessary.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 17:48:05 -04:00
Thomas Falcon 65dc689182 ibmvnic: Fix passive VNIC server login process
In some cases, if there is no VNIC server available during the driver
probe, the driver should wait until it receives an initialization
request from the VNIC Server to start the login process. Recent testing
has show that this is incorrectly handled in the current driver.

The proposed solution handles this initialization request by scheduling
a task in the shared workqueue that completes the login process and
registers the net device.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 17:42:11 -04:00
Thomas Falcon ea22d51a78 ibmvnic: simplify and improve driver probe function
This patch creates a function that handles sub-CRQ IRQ creation
separately from sub-CRQ initialization. Another function is then needed
to release sub-CRQ resources prior to sub-CRQ IRQ creation.

These additions allow the driver probe function to be simplified,
specifically during the VNIC Server login process. A timeout is also
included while waiting for completion of the login process in case
the VNIC Server is not available or some other error occurs.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 17:42:10 -04:00
Thomas Falcon 88eb98a017 ibmvnic: dispose irq mappings
IRQ mappings were not being properly disposed when releasing sub-CRQ's.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 17:42:10 -04:00
Thomas Falcon b8efb894e6 ibmvnic: properly start and stop tx queues
Since ibmvnic uses multiple tx queues, start and stop all queues when
opening and closing devices.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 17:42:10 -04:00
Dan Carpenter 09a7636a5b bnxt: fix a condition
This code generates as static checker warning because htons(ETH_P_IPV6)
is always true.  From the context it looks like the && was intended to
be !=.

Fixes: 94758f8de0 ('bnxt_en: Add GRO logic for BCM5731X chips.')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 00:02:08 -04:00
Craig Gallek 86dfb4acb3 tun: Don't assume type tun in tun_device_event
The referenced change added a netlink notifier for processing
device queue size events.  These events are fired for all devices
but the registered callback assumed they only occurred for tun
devices.  This fix adds a check (borrowed from macvtap.c) to discard
non-tun device events.

For reference, this fixes the following splat:
[   71.505935] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
[   71.513870] IP: [<ffffffff8153c1a0>] tun_device_event+0x110/0x340
[   71.519906] PGD 3f41f56067 PUD 3f264b7067 PMD 0
[   71.524497] Oops: 0002 [#1] SMP DEBUG_PAGEALLOC
[   71.529374] gsmi: Log Shutdown Reason 0x03
[   71.533417] Modules linked in:[   71.533826] mlx4_en: eth1: Link Up

[   71.539616]  bonding w1_therm wire cdc_acm ehci_pci ehci_hcd mlx4_en ib_uverbs mlx4_ib ib_core mlx4_core
[   71.549282] CPU: 12 PID: 7915 Comm: set.ixion-haswe Not tainted 4.7.0-dbx-DEV #8
[   71.556586] Hardware name: Intel Grantley,Wellsburg/Ixion_IT_15, BIOS 2.58.0 05/03/2016
[   71.564495] task: ffff887f00bb20c0 ti: ffff887f00798000 task.ti: ffff887f00798000
[   71.571894] RIP: 0010:[<ffffffff8153c1a0>]  [<ffffffff8153c1a0>] tun_device_event+0x110/0x340
[   71.580327] RSP: 0018:ffff887f0079bbd8  EFLAGS: 00010202
[   71.585576] RAX: fffffffffffffae8 RBX: ffff887ef6d03378 RCX: 0000000000000000
[   71.592624] RDX: 0000000000000000 RSI: 0000000000000028 RDI: 0000000000000000
[   71.599675] RBP: ffff887f0079bc48 R08: 0000000000000000 R09: 0000000000000001
[   71.606730] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000010
[   71.613780] R13: 0000000000000000 R14: 0000000000000001 R15: ffff887f0079bd00
[   71.620832] FS:  00007f5cdc581700(0000) GS:ffff883f7f700000(0000) knlGS:0000000000000000
[   71.628826] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.634500] CR2: 0000000000000010 CR3: 0000003f3eb62000 CR4: 00000000001406e0
[   71.641549] Stack:
[   71.643533]  ffff887f0079bc08 0000000000000246 000000000000001e ffff887ef6d00000
[   71.650871]  ffff887f0079bd00 0000000000000000 0000000000000000 ffffffff00000000
[   71.658210]  ffff887f0079bc48 ffffffff81d24070 00000000fffffff9 ffffffff81cec7a0
[   71.665549] Call Trace:
[   71.667975]  [<ffffffff810eeb0d>] notifier_call_chain+0x5d/0x80
[   71.673823]  [<ffffffff816365d0>] ? show_tx_maxrate+0x30/0x30
[   71.679502]  [<ffffffff810eeb3e>] __raw_notifier_call_chain+0xe/0x10
[   71.685778]  [<ffffffff810eeb56>] raw_notifier_call_chain+0x16/0x20
[   71.691976]  [<ffffffff8160eb30>] call_netdevice_notifiers_info+0x40/0x70
[   71.698681]  [<ffffffff8160ec36>] call_netdevice_notifiers+0x16/0x20
[   71.704956]  [<ffffffff81636636>] change_tx_queue_len+0x66/0x90
[   71.710807]  [<ffffffff816381ef>] netdev_store.isra.5+0xbf/0xd0
[   71.716658]  [<ffffffff81638350>] tx_queue_len_store+0x50/0x60
[   71.722431]  [<ffffffff814a6798>] dev_attr_store+0x18/0x30
[   71.727857]  [<ffffffff812ea3ff>] sysfs_kf_write+0x4f/0x70
[   71.733274]  [<ffffffff812e9507>] kernfs_fop_write+0x147/0x1d0
[   71.739045]  [<ffffffff81134a4f>] ? rcu_read_lock_sched_held+0x8f/0xa0
[   71.745499]  [<ffffffff8125a108>] __vfs_write+0x28/0x120
[   71.750748]  [<ffffffff8111b137>] ? percpu_down_read+0x57/0x90
[   71.756516]  [<ffffffff8125d7d8>] ? __sb_start_write+0xc8/0xe0
[   71.762278]  [<ffffffff8125d7d8>] ? __sb_start_write+0xc8/0xe0
[   71.768038]  [<ffffffff8125bd5e>] vfs_write+0xbe/0x1b0
[   71.773113]  [<ffffffff8125c092>] SyS_write+0x52/0xa0
[   71.778110]  [<ffffffff817528e5>] entry_SYSCALL_64_fastpath+0x18/0xa8
[   71.784472] Code: 45 31 f6 48 8b 93 78 33 00 00 48 81 c3 78 33 00 00 48 39 d3 48 8d 82 e8 fa ff ff 74 25 48 8d b0 40 05 00 00 49 63 d6 41 83 c6 01 <49> 89 34 d4 48 8b 90 18 05 00 00 48 39 d3 48 8d 82 e8 fa ff ff
[   71.803655] RIP  [<ffffffff8153c1a0>] tun_device_event+0x110/0x340
[   71.809769]  RSP <ffff887f0079bbd8>
[   71.813213] CR2: 0000000000000010
[   71.816512] ---[ end trace 4db6449606319f73 ]---

Fixes: 1576d98605 ("tun: switch to use skb array for tx")
Signed-off-by: Craig Gallek <kraig@google.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 23:58:57 -04:00
hayeswang 92f7d07d68 r8152: remove the setting of LAN_WAKE_EN
The LAN_WAKE_EN is not used to determine if the device could support
WOL. It is used to signal a GPIO pin when a WOL event occurs. The WOL
still works even though it is disabled.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 23:47:28 -04:00
WANG Cong 205e1e255c ppp: defer netns reference release for ppp channel
Matt reported that we have a NULL pointer dereference
in ppp_pernet() from ppp_connect_channel(),
i.e. pch->chan_net is NULL.

This is due to that a parallel ppp_unregister_channel()
could happen while we are in ppp_connect_channel(), during
which pch->chan_net set to NULL. Since we need a reference
to net per channel, it makes sense to sync the refcnt
with the life time of the channel, therefore we should
release this reference when we destroy it.

Fixes: 1f461dcdd2 ("ppp: take reference on channels netns")
Reported-by: Matt Bennett <Matt.Bennett@alliedtelesis.co.nz>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linux-ppp@vger.kernel.org
Cc: Guillaume Nault <g.nault@alphalink.fr>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 23:46:37 -04:00
Dmitri Epshtein 06708f8152 net: mvneta: set real interrupt per packet for tx_done
Commit aebea2ba0f ("net: mvneta: fix Tx interrupt delay") intended to
set coalescing threshold to a value guaranteeing interrupt generation
per each sent packet, so that buffers can be released with no delay.

In fact setting threshold to '1' was wrong, because it causes interrupt
every two packets. According to the documentation a reason behind it is
following - interrupt occurs once sent buffers counter reaches a value,
which is higher than one specified in MVNETA_TXQ_SIZE_REG(q). This
behavior was confirmed during tests. Also when testing the SoC working
as a NAS device, better performance was observed with int-per-packet,
as it strongly depends on the fact that all transmitted packets are
released immediately.

This commit enables NETA controller work in interrupt per sent packet mode
by setting coalescing threshold to 0.

Signed-off-by: Dmitri Epshtein <dima@marvell.com>
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Cc: <stable@vger.kernel.org> # v3.10+
Fixes aebea2ba0f ("net: mvneta: fix Tx interrupt delay")
Acked-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 23:44:44 -04:00
K. Y. Srinivasan 99a50bb11c netvsc: Use the new in-place consumption APIs in the rx path
Use the new APIs for eliminating a copy on the receive path. These new APIs also
help in minimizing the number of memory barriers we end up issuing (in the
ringbuffer code) since we can better control when we want to expose the ring
state to the host.

The patch is being resent to address earlier email issues.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 23:11:20 -04:00
Vasanthakumar Thiagarajan c11e99396d ath10k: fix possible wrong rx_busy time reporting in QCA4019
As hw cycle counters in QCA4019 wraparound independantly in QCA4019
it is possible cycle counter and rx clear counter would wraparound
at the same time. Current logic assumes only one of the counters
would wraparound at anytime. Fix this by moving 'else' part to
another 'if'.

Fixes: 8e100354a9 ("ath10k: fix cycle counter wraparound handling for QCA4019")
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:06:01 +03:00
Bjorn Andersson 7860eb7537 wcn36xx: Silence error about unsupported smd event 188
Sometimes the firmware sends a HAL_DEL_BA_IND, the prima driver silently
ignore this message so let's do the same to silence the error message.

Cc: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:04:40 +03:00
Benjamin Berg cfda2d8e23 ath9k: Fix beacon configuration for addition/removal of interfaces
This patch fixes some issues with interface reconfiguration. It could
for example happen that an AP interface in beacon slot 0 was removed
leaving an IBSS station in one of the other slots. When this happens
the driver never sends out the beacon as it only tries to send a beacon
from slot 0.

Appart from that the tracking of required changes to the beacon config is
relatively complicated and prone to errors.

The approach taken here is to solve reconfiguration issues is to
reconfigure the beacons when any interface changes. This means that
the complexity of deciding whether an interface change may modify the
beacon configuration is gone. It also means that the beacon config will
be reliably updated when an interface is removed.

The issue that a single non-AP interface might not be in beacon
slot 0 and wouldn't be send out is solved by moving it into the
first slot. The TSF value in hardware is adjusted accordingly so
that the timestamp of the beacons stay consistent.

Signed-off-by: Benjamin Berg <benjamin.berg@open-mesh.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:03:41 +03:00
Benjamin Berg 11b0ac2e0c ath9k: Remove some #defined constants to decrease verbosity
The removed ATH9K_SLOT_TIME_X constants simply map the value in microseconds
to the same integer. These constants were not used consistently, so fix the
inconsistency issue by replacing all occurances with the integer equivalent.

Signed-off-by: Benjamin Berg <benjamin.berg@open-mesh.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:03:37 +03:00
Benjamin Berg 7fde51227a ath9k: Expose tsf_adjustment in mac80211 tsf getters and setters.
The ath9k driver modifies the TSF for VIFs for the purpose of sending
beacons in a staggered fashion. This patch exposes this VIF specific
adjustment of the TSF value to mac80211. Without the change the TSF
routines handle the hardware TSF value instead of the actual TSF value as
seen on the air.

Signed-off-by: Benjamin Berg <benjamin.berg@open-mesh.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:03:33 +03:00
Benjamin Berg bec9a94bc4 ath9k: Use tsf offset helper in ath9k_hw_reset
These changes make ath9k_hw_reset more consistent with other places that
handle the TSF value by using the same helper routine.

A slight improvement is to not assume that a fixed time of 1.5ms has
passed for the initval writes when compared to the first write attempt.
Instead the TSF value is re-calculated which will yield a higher accuracy
of the restored TSF timer.

Signed-off-by: Benjamin Berg <benjamin.berg@open-mesh.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:03:28 +03:00
Benjamin Berg 9580cb889f ath9k: Handle channel context in get_/set_/reset_tsf
The ath9k TSF handling routines need to be aware of the channel context that
is being modified. With this change the TSF related values that are stored
in each channel context will be correctly tracked and the harware will only
be updated if the modified context is currently the active one.

Without this change the TSF modifications done using these routines would
for example be lost during a hardware reset as done by ath_complete_reset.

Signed-off-by: Benjamin Berg <benjamin.berg@open-mesh.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:03:24 +03:00
Benjamin Berg fa5106e1d7 ath9k: Correct TSF adjustment to align the beacon time correctly
Beacons were not send out at (timestamp % beacon_time == 0) for interfaces
other than the primary one. To send out beacons with the correct timestamp
according to 10.1.3.2 of the 802.11 standard the tsf_adjustment has to be
set to the negative time difference instead of positive. This way the
later beacons get corrected to have a lower (and similar) timestamp with
regard to the beacon from slot 0.

I am not aware about any issues that have been caused by this.

Signed-off-by: Benjamin Berg <benjamin.berg@open-mesh.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:03:20 +03:00
Martin Blumenstingl 28755b8f6d ath9k: move all ath9k_platform_data initialization into one function
No functional changes, this simply makes the code easier to understand
because all initialization based on ath9k_platform_data is now within
one function.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:01:31 +03:00
Martin Blumenstingl d323cb71ab ath9k: remove return value from ath9k_hw_init_macaddr
ath9k_hw_init_macaddr unconditionally returns 0 in all cases, making the
return value unnecessary.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:01:27 +03:00
Martin Blumenstingl 0cefa97498 ath9k: ath9k_hw_init_macaddr should not overwrite valid MAC addresses
Currently setting the MAC address via ath9k_platform_data works only due
to the order in which init.c sets common->macaddr, which is done after
ath9k_hw_init_macaddr was executed. It would be better if the latter
was independent of the order in which it's being called.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:01:23 +03:00
Martin Blumenstingl b27301f86c ath9k: remove variable which is set but never read
No functional changes - this only removes a variable which is set but
never read.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:01:18 +03:00
Martin Blumenstingl 3467f0d433 ath9k: Allow configuration of LED polarity in platform data.
Some devices running OpenWrt need this and it makes sense to add this
to ath9k_platform_data as the next patches will add a devicetree
(boolean) property for it as well.

Suggested-by: Vittorio Gambaletta <openwrt@vittgam.net>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 17:01:14 +03:00
Bjorn Andersson 86ceae90d3 wcn36xx: Fix up wcn36xx_smd_update_scan_params()
Fix up the wcn36xx_smd_update_scan_params() to work with non-ancient
versions of the firmware and support actually specifying the list of
channels.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 16:58:31 +03:00
Bjorn Andersson 6f10b4e1e6 wcn36xx: Correct DXE chip version differentiation
The CCU block in WCNSS is configured for appropriate routing of
interrupts from the DXE to the application cpu, this is not dependant on
the iris version (wcn3660 vs wcn3680), but rather if the SoC has a riva
or pronto built in.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 16:58:27 +03:00
Bjorn Andersson 05ddce497c wcn36xx: Split mmio space into explicit regions
Split the wcnss mmio space into explicit regions for ccu and dxe and
acquire these from the node referenced by the qcom,mmio phandle.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 16:58:22 +03:00
Bjorn Andersson 1c41fd5fb7 wcn36xx: Change indication list lock to spinlock
In preparation for handling incoming messages from IRQ context, change
the indication list lock to a spinlock

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 16:58:18 +03:00
Bjorn Andersson 909aa60c05 wcn36xx: Fold indication payload into message header
Merge the two allocation instead of separately allocating room for the
indication payload.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 16:58:14 +03:00
Larry Finger 238ad2ddf3 rtlwifi: rtl8723ae: Clean up the hardware info routine
This driver contains some complicated if ... else if ... else constructions.
These are replaced by switch statements to improve readability.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:50:04 +03:00
Larry Finger a8c9fb2b82 rtlwifi: rtl8192de: Convert driver to use common hardware info routine
The driver for RTL8192DE chips is converted to use the common routine
for getting the hardware information.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:50:04 +03:00
Larry Finger 2f7b4b8953 rtlwifi: rtl8821ae: Convert driver to use common hardware info routine
The driver for RTL8821AE chips is converted to use the common routine
for getting the hardware information.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:50:03 +03:00
Larry Finger 9e9c9c247c rtlwifi: rtl8723be: Convert driver to use common hardware info routine
The driver for RTL8723BE chips is converted to use the common routine
for getting the hardware information.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:50:03 +03:00
Larry Finger 8aaf6916de rtlwifi: rtl8723ae: Convert driver to use common hardware info routine
The driver for RTL8723AE chips is converted to use the common routine
for getting the hardware information.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:50:02 +03:00
Larry Finger 5c392654ee rtlwifi: rtl8192ee: Convert driver to use common hardware info routine
The driver for RTL8192EE chips is converted to use the common routine
for getting the hardware information.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:50:02 +03:00
Larry Finger 9468792743 rtlwifi: rtl8188ee: Convert driver to use common hardware info routine
The driver for RTL8188EE chips is converted to use the common routine
for getting the hardware information.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:50:01 +03:00
Larry Finger c2d9a41145 rtlwifi: rtl8192cu: Convert driver to use common hardware info routine
The driver for RTL8192CU chips is converted to use the common routine
for getting the hardware information.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:50:01 +03:00
Larry Finger df5cbc697d rtlwifi: rtl8192ce: Convert driver to use common hardware info routine
The driver for RTL8192CE chips is converted to use the common routine
for getting the hardware information.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:50:00 +03:00
Larry Finger edb45b67a0 rtlwifi: Create common routine to get hardware info
All of the rtlwifi family of drivers have a similar routine that acquires
the hardware info from efuse and initializes a number of variables in the
driver's private area. A common routine is created for all drivers to use.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:50:00 +03:00
Shengzhen Li 5781fc29db mwifiex: fix interrupt processing corner case in MSI mode
As interrupt is read in interrupt handler as well as interrupt processing
thread, we observed a corner case issue for MSI in which interrupt gets
processed twice.

This patch moves interrupt reading code for MSI mode from
mwifiex_interrupt_status() to mwifiex_pcie_process_int() to avoid the
issue.

Signed-off-by: Shengzhen Li <szli@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:49:13 +03:00
Brian Norris d41376ca8b mwifiex: mask PCIe interrupts before removal
The PCIe driver didn't mask the host interrupts before trying to tear
down. This causes lockups at reboot or rmmod when using MSI-X on 8997,
since the MSI handler gets confused and locks up the system.

Also tested on 8897, which does not support MSI-X (and wasn't
experiencing this same bug). No regressions seen there.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:48:27 +03:00
Amitkumar Karwar 473dfbfa09 mwifiex: Change default firmware for PCIe8997 chipset
PCIe-USB8997 variant is being used in the product. Let's change default
firmware from PCIe-UART to PCIe-USB. So by default PCIe-USB firmware would
be downloaded if version register doesn't give any information.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:47:17 +03:00
Prasun Maiti c18b104dd2 mwifiex: Fix endianness for event TLV type TLV_BTCOEX_WL_SCANTIME
The two members min_scan_time and max_scan_time of structure
"mwifiex_ie_types_btcoex_scan_time" are of two bytes each. The values
are assigned directtly from firmware without endian conversion handling.
So, wrong datas will get saved in big-endian systems.

This patch converts the values into cpu's byte order before assigning them
into the local members.

Signed-off-by: Prasun Maiti <prasunmaiti87@gmail.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:46:43 +03:00
Rafał Miłecki dba8fbc67e brcmfmac: support removing AP interfaces with "interface_remove"
New firmwares (e.g. 10.10.69.36 for BCM4366) support "interface_remove"
for removing interfaces. Try to use this method on cfg80211 request. In
case of older firmwares (e.g. 7.35.177.56 for BCM43602 as I tested) this
will just result in firmware rejecting command and this won't change any
behavior.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:45:47 +03:00
Rafał Miłecki a63b09872c brcmfmac: delete interface directly in code that sent fw request
So far when receiving event about in-firmware-interface removal our
event worker was notifying listener and afterwards it was removing Linux
interface.

First of all it was resulting in slightly unexpected order. The listener
(del_virtual_intf callback) was (usually) returning with success before
we even called unregister_netdev(ice).

Please note this couldn't be simply fixed by changing order of calls in
brcmf_fweh_handle_if_event as unregistering interface earlier could free
struct brcmf_if.

Another problem of current implementation are possible lockups. Focus on
the time slot between calling event handler and removing Linux
interface. During that time original caller may leave (unlocking rtnl
semaphore) *and* another call to the same code may be done (locking it
again). If that happens our event handler will stuck at removing Linux
interface, it won't handle another event and will block process holding
rtnl lock.

This can be simply solved by unregistering interface in a proper
callback, right after receiving confirmation event from firmware. This
only required modifying worker to don't unregister on its own if there
is someone waiting for the event.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:45:47 +03:00
Amitkumar Karwar b74d6e740b mwifiex: fix scan_block flag handling
scan_block flag is used to block scan operation when 4 way handshake
is in progress. Sometimes it doesn't get cleared due to incomplete
association. An example is assoc request/response is done, but add key
operation get canceled in some corner cases. As a result, further
association/scan operations are blocked.

This patch fixes the problem by clearing scan_block flag.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:44:03 +03:00
Masanari Iida 8a1902374f rtlwifi: Fix typo in printk
This patch fix spelling typos found in drivers/net/wireless/realtek.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:42:51 +03:00
Jes Sorensen fd83f12278 rtl8xxxu: gen1: Add module parameters to adjust DMA aggregation parameters
This allows the user to specify DMA aggregation timout and block
count. Blocks are presumably always 512 bytes, so the minimum block
count is 6 for 802.11 packets.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:41:59 +03:00
Jes Sorensen 614e389f36 rtl8xxxu: gen1: Set aggregation timeout (REG_RXDMA_AGG_PG_TH + 1) as well
gen2 chips as well as 8188eu seems to use this register for setting
DMA timeout threshold values, however the 8192cu is using
REG_USB_DMA_AGG_TO. Set both to be on the safe side.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:41:58 +03:00
Jes Sorensen 82cce22acd rtl8xxxu: Make DMA aggregation optional by setting a module parameter
Let the default to off until we have more data on the right default
tuning values.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:41:58 +03:00
Jes Sorensen 0a20ed8bd0 rtl8xxxu: Enable aggregation for rtl8192cu/rtl8188cu/rtl8188ru
This enables aggregation on rtl8192cu and derivative parts. This uses
the same parameters as for rtl8723au.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:41:57 +03:00
Jes Sorensen 91dcbb7175 rtl8xxxu: Enable aggregation for rtl8723au
Implement rtl8xxxu_gen1_init_aggregation(). Aggregation should be the
same for all gen1 parts. We may want to allow for tuning parameters in
the fileopes struct. For now this is based allocating 16KB RX buffers,
leaving 16000 bytes for actual packets, and the rest for the skb
overhead.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:41:57 +03:00
Jes Sorensen 1e5b3b3fe9 rtl8xxxu: Adjust RX skb size to include space for phystats
The old allocation didn't leave space for phystats in the buffer,
allowing the packet to be rejected if a frame size of size
IEEE80211_MAX_FRAME_LEN was received.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:41:56 +03:00
Jes Sorensen 04319ae2f6 rtl8xxxu: Allocate larger RX skbs when aggregation is enabled
This adds support for allocating larger skbs for devices which
indicate they support it.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:41:56 +03:00
Jes Sorensen 040b97be60 rtl8xxxu: Add support for aggregated RX packets on gen1 parts
This implements support for demuxing aggregated RX packets on gen1
devices, using the rxdesc16 format.

So far this has only been tested with rtl8723au devices.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:41:55 +03:00
Jes Sorensen 41892729cf rtl8xxxu: Correct rxdesc16 definition
This corrects the definition of rxdesc16 to correctly specify pkt_cnt
for aggregated packets. This is based on the code of the vendor
rtl8723au driver, as opposed to the struct definitions they use.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:41:55 +03:00
Jes Sorensen 2db125d4af rtl8xxxu: Obtain ieee80211_rx_status within parse_rx_desc()
When handling aggregated packets, we'll get a new ieee80211_rx_status
for each cloned skb, so passing in the pointer from the outside
doesn't make sense.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:41:54 +03:00
Jes Sorensen a635df8a41 rtl8xxxu: Move skb delivery into parse_tx_desc() handler
This is another prepatory patch to be able to handle aggregated RX
packets.

In order to avoid adding a prototype, this also moves the
rtl8723bu_handle_c2h() function.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:41:53 +03:00
Jes Sorensen c14ee43b8a rtl8xxxu: Set all ieee80211_rx_status values in parse_rx_desc()
This needs to be handled locally in the parse_rx_desc() function in
order to be able to handle aggregated packets in the future.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 16:41:53 +03:00
Alexander Aring 7c2b9bff56 fakelb: allow to run as monitor
For my RIOT-OS in userspace experiments I need to create a fakelb
monitor interface. The fakelb doesn't filter anything on L2 and is a
purely raw interface. Because nl802154 checks on promiscuous mode which
need to supported by creating monitors this patch adds some no-op
promiscuous mode setting and the promiscuous flag.

Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-07-08 13:23:12 +02:00
Alexander Aring 3896129451 atusb: don't change csma settings while set channel
This patch fixes the behaviour to not overwrite csma settings when
set channel afterwards.

Cc: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-07-08 13:23:12 +02:00
Machani, Yaniv 585dfe813f wlcore: time sync : add support for 64 bit clock
Changed the configuration to support 64bit instead of 32bit
this in order to offload the driver from handling a wraparound.

Signed-off-by: Yaniv Machani <yanivma@ti.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 13:00:08 +03:00
Amitkumar Karwar 16d25da94f mwifiex: fix NULL pointer dereference during suspend
This patch fixes below NULL pointer dereference observed in suspend
stress test. When scan is cancelled during system suspend, we may end
up aceesing "priv->scan_request" in corner case.

[ 3035.304682] BUG: KASAN: null-ptr-deref on address 0000000000000008
[ 3035.304704] Read of size 4 by task ksdioirqd/mmc2/1183
[ 3035.304744] CPU: 0 PID: 1183 Comm: ksdioirqd/mmc2 Tainted: G        W      3.18.0 #1169
[ 3035.304772] Call trace:
[ 3035.304825] [<ffffffc00020a520>] dump_backtrace+0x0/0x190
[ 3035.304864] [<ffffffc00020a6cc>] show_stack+0x1c/0x28
[ 3035.304901] [<ffffffc000b36db8>] dump_stack+0xa0/0xf8
[ 3035.304940] [<ffffffc00039c494>] kasan_report+0x120/0x4fc
[ 3035.304975] [<ffffffc00039b6b4>] __asan_load4+0x20/0x80
[ 3035.305546] [<ffffffbffc1f5aec>] mwifiex_check_next_scan_command+0x1a4/0x588 [mwifiex]
[ 3035.306091] [<ffffffbffc1f7aec>] mwifiex_handle_event_ext_scan_report+0x304/0x370 [mwifiex]
[ 3035.306735] [<ffffffbffc206bb8>] mwifiex_process_sta_event+0x6c0/0xf10 [mwifiex]
[ 3035.307200] [<ffffffbffc1e609c>] mwifiex_process_event+0x2f4/0x358 [mwifiex]
[ 3035.307612] [<ffffffbffc1e25c8>] mwifiex_main_process+0x3cc/0x80c [mwifiex]
[ 3035.307737] [<ffffffbffc2523a0>] mwifiex_sdio_interrupt+0x198/0x1c0 [mwifiex_sdio]
[ 3035.307785] [<ffffffc0008d9250>] process_sdio_pending_irqs+0x15c/0x1d4
[ 3035.307826] [<ffffffc0008d93f0>] sdio_irq_thread+0xd8/0x288

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 12:59:28 +03:00
Amitkumar Karwar 09e672a16b mwifiex: clear scan_aborting flag
The flag should be cleaned along with other scan operation variables.
This was missing at some places.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 12:59:27 +03:00
Amitkumar Karwar 322397b268 mwifiex: code rearrangement in suspend handler
We will derive sta_priv at the beginning of suspend handler.
This will be useful for next patch in this series.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 12:59:27 +03:00
Joe Perches 4713bd1c74 rtlwifi: Add missing newlines to RT_TRACE calls
RT_TRACE does not add a newline to the end of a message and always
emits at KERN_DEBUG so these are susceptible to message interleaving
from other processes without the newline.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 12:58:38 +03:00
Joe Perches 9ce221915a rtlwifi: Create _rtl_dbg_trace function to reduce RT_TRACE code size
This debugging macro can expand to a lot of code.
Make it a function to reduce code size.

(x86-64 defconfig w/ all rtlwifi drivers and allyesconfig)
$ size drivers/net/wireless/realtek/rtlwifi/built-in.o*
   text	   data	    bss	    dec	    hex	filename
 900083	 200499	   1907	1102489	 10d299	drivers/net/wireless/realtek/rtlwifi/built-in.o.defconfig.new
1113597	 200499	   1907	1316003	 1414a3	drivers/net/wireless/realtek/rtlwifi/built-in.o.defconfig.old
1746879	 453503	   8512	2208894	 21b47e	drivers/net/wireless/realtek/rtlwifi/built-in.o.new
2051965	 503311	   8512	2563788	 271ecc	drivers/net/wireless/realtek/rtlwifi/built-in.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 12:55:09 +03:00
Jes Sorensen 78383ac951 rtl8xxxu: Reduce console noise when removing the kernel module
USB urbs will return with a status != 0 when rmmod'ing the driver. No
need to fill the log with messages from rtl8xxxu_int_complete()

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 12:54:24 +03:00
Luis de Bethencourt efcb32883f rtl8xxxu: remove unneeded assignments
reg_eac and reg_ecc are only used if candidate is bigger than 0, and in
that case new values will be given to them. Removing the unused
assignments.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 12:54:23 +03:00
Kalle Valo 26124f4b77 * work on DQA continued
* SAR BIOS implementation
 * some work on debugging capabilities
 * added support for GCMP encryption
 * data path rework in preparation for new HW
 * some cleanup to remove transport dependency on mac80211
 * support for MSIx in preparation for new HW
 * lots of work in preparation for HW support (9000 and a000 series)
 * general cleanups
 * general bugfixes
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Merge tag 'iwlwifi-next-for-kalle-2016-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

* work on DQA continued
* SAR BIOS implementation
* some work on debugging capabilities
* added support for GCMP encryption
* data path rework in preparation for new HW
* some cleanup to remove transport dependency on mac80211
* support for MSIx in preparation for new HW
* lots of work in preparation for HW support (9000 and a000 series)
* general cleanups
* general bugfixes
2016-07-08 12:20:30 +03:00
Mohammed Shafi Shajakhan ce30c4fe1a ath10k: replace warning with an error message if HTT op version is unset
Print an ath10k error message rather a call trace when HTT op version is
not found from firmware META data (IE). This should be sufficient to figure
out what went wrong.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:53:44 +03:00
Anilkumar Kolli e565c3125e ath10k: enable support for QCA9888
QCA9888 shares the same configuration with QCA99X0
with NSS=2.

Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:50:45 +03:00
Anilkumar Kolli 2225378d84 ath10k: remove unused member in ath10k_hw_regs
rtc_state_cold_reset_mask is unused in ath10k_hw_regs.
instead fixed delays are used.

Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:50:41 +03:00
Ben Greear d0eeafad11 ath10k: Clean up peer when sta goes away.
If WMI and/or firmware has issues removing the peer object,
then we still need to clean up the peer object in the driver.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:48:22 +03:00
Ben Greear c5ace87a88 ath10k: Add WARN_ON if we over-write peer-map pointer.
Not sure this can happen, but seems like a reasonable sanity
check.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:48:17 +03:00
Eduardo Abinader 9802977dcc ath10k: remove extra space on ath10k_update_channel_list
just to comply to coding style.

Signed-off-by: Eduardo Abinader <eduardo.abinader@riverbed.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:47:10 +03:00
Ashok Raj Nagarajan 34293f7558 ath10k: simplify pktlog htt event processing
It is expected that all pktlog events for 10.4 firmware based solutions
should come through CE8 where as in case of 10.2 firmware based solutions,
it should come through one of the HTT events (HTT_T2H_MSG_TYPE_PKTLOG).

But from experiments with 10.4 based solutions, it is observed that pktlog
event for ATH_PKTLOG_TYPE_TX_MSDU_ID is coming through HTT pktlog event.
Currently, we always parse with 10.2 pktlog header which will lead to
pktlog decoding issues (payload length mismatch exceptions)

For trace points, it is required to provide only the payload size. So
fixing this by simplifying the payload size calculation without the use of
ath10k pktlog headers.

While there, remove the unused ath10k pktlog headers.

Signed-off-by: Ashok Raj Nagarajan <arnagara@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:46:03 +03:00
Chaehyun Lim a3dadad733 ath10k: remove unused <linux/semaphore.h>
<linux/semaphore.h> is not used anymore, so just remove the include.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:43:59 +03:00
Ben Greear 6d68f7900d ath10k: ensure peer_map references are cleaned up
While debugging OS crashes due to firmware crashes, I enabled
kasan, and it noticed that peer objects were being used-after-freed.

Looks like there are two places we could be leaving stale references
in the peer-map, so clean that up.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:41:59 +03:00
Ben Greear de0170beaa ath10k: ensure txrx-compl-task is stopped when cleaning htt-tx
Otherwise, the txrx-compl-task may access some bad memory?

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:41:55 +03:00
Mohammed Shafi Shajakhan 2ba1f37094 ath10k: remove debugfs support for Per STA total rx duration
cfg80211/nl80211 interface changes for per STA total rx-duration and
very basic 'ath10k_sta_statistics'  mac80211 callback is implemented
to extend support for per station statistics from the driver.

Also provision in 'iw dev wlan#N station dump' to parse rx-duration
is supported. So its safer to remove the debugfs entry for per STA
rx-duration

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:37:51 +03:00
Mohammed Shafi Shajakhan 120a1f02a5 ath10k: add support for ath10k_sta_statistics support
Enable support for 'drv_sta_statistics' callback.
Export rx_duration support if available to cfg80211/nl80211

This can also act as a placeholder for any new per STA stats support

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:37:47 +03:00
Mohammed Shafi Shajakhan 4a49ae94a4 ath10k: fix 10.4 extended peer stats update
10.4 'extended peer stats' will be not be appended with normal peer stats
data and they shall be coming in separate chunks. Fix this by maintaining
a separate linked list 'extender peer stats' for 10.4 and update
rx_duration for per station statistics. Also parse through beacon filter
(if enabled), to make sure we parse the extended peer stats properly.
This issue was exposed when more than one client is connected and
extended peer stats for 10.4 is enabled

The order for the stats is as below
S - standard peer stats, E- extended peer stats, B - beacon filter stats

{S1, S2, S3..} -> {B1, B2, B3..}(if available) -> {E1, E2, E3..}

Fixes: f9575793d4 ("ath10k: enable parsing per station rx duration for 10.4")
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-08 09:36:41 +03:00
Thomas Gleixner 25df57605e timers, driver/net/ethernet/tile: Initialize the egress timer as pinned
Pinned timers must carry the pinned attribute in the timer structure
itself, so convert the code to the new API.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Chris Mason <clm@fb.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: George Spelvin <linux@sciencehorizons.net>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160704094341.376394205@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-07-07 10:25:14 +02:00
David S. Miller a90a6e55f3 One more set of new features:
* beacon report (for radio measurement) support in cfg80211/mac80211
  * hwsim: allow wmediumd in namespaces
  * mac80211: extend 160MHz workaround to CSA IEs
  * mesh: properly encrypt group-addressed privacy action frames
  * mesh: allow setting peer AID
  * first steps for MU-MIMO monitor mode
  * along with various other cleanups and improvements
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Merge tag 'mac80211-next-for-davem-2016-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
One more set of new features:
 * beacon report (for radio measurement) support in cfg80211/mac80211
 * hwsim: allow wmediumd in namespaces
 * mac80211: extend 160MHz workaround to CSA IEs
 * mesh: properly encrypt group-addressed privacy action frames
 * mesh: allow setting peer AID
 * first steps for MU-MIMO monitor mode
 * along with various other cleanups and improvements
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-06 22:32:15 -07:00
Wei Yongjun fcf752ae19 net: mediatek: remove .owner field for driver
Remove .owner field since calls to module_platform_driver() will
set it automatically.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-06 22:31:36 -07:00
David S. Miller 30d0844bdc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/mellanox/mlx5/core/en.h
	drivers/net/ethernet/mellanox/mlx5/core/en_main.c
	drivers/net/usb/r8152.c

All three conflicts were overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-06 10:35:22 -07:00
Avraham Stern 7947d3e075 mac80211: Add support for beacon report radio measurement
Add the following to support beacon report radio measurement
with the measurement mode field set to passive or active:
1. Propagate the required scan duration to the device
2. Report the scan start time (in terms of TSF)
3. Report each BSS's detection time (also in terms of TSF)

TSF times refer to the BSS that the interface that requested the
scan is connected to.

Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
[changed ath9k/10k, at76c59x-usb, iwlegacy, wl1251 and wlcore to match
the new API]
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-07-06 14:53:19 +02:00
Avraham Stern 1d76250bd3 nl80211: support beacon report scanning
Beacon report radio measurement requires reporting observed BSSs
on the channels specified in the beacon request. If the measurement
mode is set to passive or active, it requires actually performing a
scan (passive or active, accordingly), and reporting the time that
the scan was started and the time each beacon/probe was received
(both in terms of TSF of the BSS of the requesting AP). If the
request mode is table, this information is optional.
In addition, the radio measurement request specifies the channel
dwell time for the measurement.

In order to use scan for beacon report when the mode is active or
passive, add a parameter to scan request that specifies the
channel dwell time, and add scan start time and beacon received time
to scan results information.

Supporting beacon report is required for Multi Band Operation (MBO).

Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-07-06 14:51:31 +02:00
Johannes Berg f1724b0258 mac80211_hwsim: use signed net namespace ID
The API expects a pointer to a signed int so we should not use an
unsigned int for it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-07-06 14:48:37 +02:00
Ilan Peer f7736f501f mac80211_hwsim: Add radar bandwidths to the P2P Device combination
Add radar_detect_widths to the interface combination that allows
concurrent P2P Device dedicated interface and AP interfaces, to enable
testing of radar detection when P2P Device interface is used.

Clear the radar_detect_widths in case of multi channel contexts
as this is not currently supported.

As radar_detect_widths are now supported in all combinations,
remove the hwsim_if_dfs_limits definition since it is no longer
needed.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-07-06 14:46:30 +02:00
Sara Sharon 6f482e37b7 iwlwifi: move iwl_drv to be shared across transports
All transports has this structure. By moving it to be
shared, we can get rid of casting to the specific transport
in probe and remove.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:37:44 +03:00
Sara Sharon 38398efb74 iwlwifi: pcie: centralize SCD status logging
Centralize the logging of SCD status. The motivation is
that for a000 devices we will have new SCD HW, but this
code was duplicate anyway, so it is a proper cleanup.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:32:34 +03:00
Luca Coelho 55bfa4b9d4 iwlwifi: mvm: support v4 of the TX power command
Add support for the v4 version of the TX power command.  Just add a
new version and do the same sizing tricks that were done when support
for v3 was introduced.

This patch doesn't support the new functionality introduced, but makes
the driver work with the new size of the command.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:30:06 +03:00
Sara Sharon 564cdce735 iwlwifi: pcie: load FW chunk for a000 devices
Update the firmware load flow for TFH hardware.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:23:35 +03:00
Sara Sharon e22744af3b iwlwifi: pcie: initialize a000 device's TFD table
For a000 device the FH was replaced by the TFH.
This is the first patch in a series introducing the
changes stemming from this change.
This patch initializes the TFQ queue table with the new
64 bit register and the relevant TFH configuration
registers.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:23:02 +03:00
Sara Sharon 12a17458a2 iwlwifi: centralize 64 bit HW registers write
Move the write_prph_64 of pcie to be transport agnostic.
Add direct write as well, as it is needed for a000 HW.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:22:08 +03:00
Sara Sharon 8de437c71e iwlwifi: pcie: generalize and increase the size of scratchbuf
Currently the scratch buffer is set to 16 bytes and indicates
the size of the bi-directional DMA.
However, next HW generation will perform additional offloading,
and will write the result in the key location of the TX command,
so the size of the bi-directional consistent memory should grow
accordingly - increase it to 40.
Generalize the code to get rid of now irrelevant scratch references.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:21:29 +03:00
Sara Sharon b1753c62c7 iwlwifi: pcie: track rxb status
In MQ environment and new architecture in early stages
we may encounter DMA issues. Track RXB status and bail
out in case we receive index to an RXB that was not
mapped and handed over to HW.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:18:20 +03:00
Emmanuel Grumbach f16c3ebfa6 iwlwifi: pcie: fix a race in firmware loading flow
Upon firmware load interrupt (FH_TX), the ISR re-enables the
firmware load interrupt only to avoid races with other
flows as described in the commit below. When the firmware
is completely loaded, the thread that is loading the
firmware will enable all the interrupts to make sure that
the driver gets the ALIVE interrupt.
The problem with that is that the thread that is loading
the firmware is actually racing against the ISR and we can
get to the following situation:

CPU0					CPU1
iwl_pcie_load_given_ucode
	...
	iwl_pcie_load_firmware_chunk
		wait_for_interrupt
					<interrupt>
					ISR handles CSR_INT_BIT_FH_TX
					ISR wakes up the thread on CPU0
	/* enable all the interrupts
	 * to get the ALIVE interrupt
	 */
	iwl_enable_interrupts
					ISR re-enables CSR_INT_BIT_FH_TX only
	/* start the firmware */
	iwl_write32(trans, CSR_RESET, 0);

BUG! ALIVE interrupt will never arrive since it has been
masked by CPU1.

In order to fix that, change the ISR to first check if
STATUS_INT_ENABLED is set. If so, re-enable all the
interrupts. If STATUS_INT_ENABLED is clear, then we can
check what specific interrupt happened and re-enable only
that specific interrupt (RFKILL or FH_TX).

All the credit for the analysis goes to Kirtika who did the
actual debugging work.

Cc: <stable@vger.kernel.org> [4.5+]
Fixes: a6bd005fe9 ("iwlwifi: pcie: fix RF-Kill vs. firmware load race")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:16:12 +03:00
Johannes Berg 21cb3222fe iwlwifi: decouple PCIe transport from mac80211
The PCIe transport needs to store two pointers in each TX SKB, and
currently assumes mac80211's ieee80211_tx_info is present in the CB
to do that.

In order to remove that assumption, have the opmodes pass in the
offset to where the pointers can be stored in the CB and use the
offset in the PCIe code.

To make the disentanglement complete, remove mac80211.h includes
from everywhere in the generic iwlwifi code. This required adding
an include of cfg80211.h in one place.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:09:56 +03:00
Johannes Berg 0c4cb7314d iwlwifi: tracing: decouple from mac80211
In order to be able to properly record SKBs that didn't come through
mac80211, don't rely on the IEEE80211_TX_CTRL_PORT_CTRL_PROTO flag
but instead check for ETH_P_PAE directly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:08:56 +03:00
Johannes Berg 24ddddf367 iwlwifi: store cipher scheme independent of mac80211
In order to reduce reliance on mac80211 structs in the core
iwlwifi code, store the cipher schemes in the format given
by the firmware and convert it later, rather than storing it
in the mac80211 format.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:08:25 +03:00
Sara Sharon 60dec5233c iwlwifi: mvm: free RX reorder buffer on restart
Restart flow zeroes the rx_ba_sessions counter. Mac80211 asks
driver to tear down of the session only afterwards, and as a
result driver didn't free the data. Fix it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Fixes: 10b2b2019d ("iwlwifi: mvm: add infrastructure for tracking BA session in driver")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:06:01 +03:00
Sara Sharon 35263a0311 iwlwifi: mvm: add RX aggregation prints
Add some prints to track BAID assignment.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:05:37 +03:00
Liad Kaufman 58f2cc57dc iwlwifi: mvm: support dqa-mode scd queue redirection
Make sure that in DQA mode, the SCD's configuration of a
queue is redirected to the lower AC of the streams of the
queue.

Make sure that this queue is redirected to the lowest AC
when adding a new RA/TID to an existing queue. If it isn't -
redirect the queue.

Also, as redirection revealed a bug in the marking of a
shared queue, this patch contains a small fix to make
sure a shared queue maintains the appropriate "shared queue
marking".

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 10:00:21 +03:00
Liad Kaufman e3118ad74d iwlwifi: mvm: support tdls in dqa mode
Support TDLS when working in DQA mode.

This is done mainly by NOT doing any special things
for TDLS, as the queues are dynamically created anyway,
so no need to allocate them ahead of time.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 09:59:55 +03:00
Sara Sharon e25d65f267 iwlwifi: pcie: don't use vid 0
In cases of hardware or DMA error, the vid read from
a zeroed location will be 0, and we will access the rxb
at index 0 in the global table, while it may be NULL or
owned by hardware.
Invalidate vid 0 in order to detect the situation and
bail out.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 09:59:28 +03:00
Emmanuel Grumbach 3edbc7daba iwlwifi: mvm: unmap the paging memory before freeing it
This led to a DMA splat.

Fixes: a6c4fb4441 ("iwlwifi: mvm: Add FW paging mechanism for the UMAC on PCI")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 09:58:33 +03:00
Johannes Berg 5e7d7eb9cc iwlwifi: remove iwl_ht_params.smps_mode
This struct member is never set, so remove it.

Since this is the last thing that needs mac80211.h, also change
the includes to no longer use mac80211.h

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 09:57:10 +03:00
Emmanuel Grumbach ad17b1d953 iwlwifi: mvm: fix the channel inhibition table for Channel 14
The value for Channel 14 was wrong. Fix it.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 09:56:32 +03:00
Emmanuel Grumbach c934bce9de iwlwifi: mvm: fix coex related comments
Those comments were wrong, fix them.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 09:55:47 +03:00
Golan Ben-Ami e7c9bd1cc6 iwlwifi: mvm: write the correct internal TXF index
The TX fifos are arranged consecutively in the SMEM, beginning
with the regular fifos, and tailed by the internal fifos.
In the current code, while trying to read the internal fifos,
we read the fifos beginning with the index zero.
By doing this we actually re-read the regular fifos.

In order to read the internal fifos, start the reading index
from the number of regular fifos configured by the fw.

Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Fixes: 39654cb3a6 ("iwlwifi: don't access a nonexistent register upon assert")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 09:52:44 +03:00
Sara Sharon d5d0689aef iwlwifi: pcie: fix access to scratch buffer
This fixes a pretty ancient bug that hasn't manifested itself
until now.
The scratchbuf for command queue is allocated only for 32 slots
but is accessed with the queue write pointer - which can be
up to 256.
Since the scratch buf size was 16 and there are up to 256 TFDs
we never passed a page boundary when accessing the scratch buffer,
but when attempting to increase the size of the scratch buffer a
panic was quick to follow when trying to access the address resulted
in a page boundary.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Fixes: 38c0f334b3 ("iwlwifi: use coherent DMA memory for command header")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 09:40:33 +03:00
Ido Yariv 54f315cb08 iwlwifi: pcie: Enable MSI mode when using MSI interrupts
On some of the chipsets MSI & INTA interrupts are disabled by default in
the HW registers, and need to be explicitly enabled to be used.

In case MSI-X isn't used, make sure MSI mode is enabled by setting
the relevant HW register.

Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 09:39:16 +03:00
Olof Johansson 213ae9025d The i.MX SoC changes for 4.8:
- A patch series including both cpuidle and FEC driver changes to
    disable deeper idle states when FEC is active while board level
    workaround for ERR006687 is not available
  - A number patches to fix sparse warnings and spell errors
  - A fix for TZIC FIQ translation from VIRQ to HWIRQ
  - Support compatible of i.MX7 Solo SoC which has a subset of i.MX7 Dual
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Merge tag 'imx-soc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc

The i.MX SoC changes for 4.8:
 - A patch series including both cpuidle and FEC driver changes to
   disable deeper idle states when FEC is active while board level
   workaround for ERR006687 is not available
 - A number patches to fix sparse warnings and spell errors
 - A fix for TZIC FIQ translation from VIRQ to HWIRQ
 - Support compatible of i.MX7 Solo SoC which has a subset of i.MX7 Dual

* tag 'imx-soc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx: add support for i.MX 7Solo
  ARM: i.MX: Disable supervisor protect for i.MX51
  ARM: imx6: fix missing <soc/imx/cpuidle.h> in cpuidle-imx6q.c
  ARM: i.MX: Fix FIQ interrupt handling for TZIC
  ARM: imx6: fix static declaration in include/soc/imx/cpuidle.h
  ARM: imx6q: export cpuidle functions needed by fec driver
  ARM: imx: fix missing include of common.h
  ARM: imx: fix missing includes
  ARM: imx6: disable deeper idle states when FEC is active w/o HW workaround
  ARM: mach-imx6q: fix spelling mistake in error message

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-07-05 20:58:46 -07:00
Luca Coelho da2830acf1 iwlwifi: mvm: read SAR BIOS table from ACPI
Read the SAR BIOS table from the ACPI and parse it into the
iwl_mvm_sar_table structure.  If the table is enabled, send it to the
firmware via REDUCE_TX_POWER_CMD.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 02:23:36 +03:00
Emmanuel Grumbach 3aa4359fe1 iwlwifi: mvm: cleanup the coex code
We removed support for old API for coexistence, but we
forgot to remove defines and variable that are not needed
anymore.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 02:19:21 +03:00
Sara Sharon ecf5142415 iwlwifi: mvm: checksum IPv6 fragmented packet
Our HW does not support checksum of fragmented packets.
Fix code accordingly to checksum those packets in the driver.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Fixes: 5e6a98dc48 ("iwlwifi: mvm: enable TCP/UDP checksum support for 9000 family")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 02:09:56 +03:00
striebit 849a962729 iwlmvm: mvm: set correct state in smart-fifo configuration
Currently the state sent in SF configuration is always
FULL_ON.
This commit sets the correct state (e.g. INIT_OFF
when station is not associated).

Fixes: commit f4a3ee493e ("iwlwifi: mvm: Always enable the smart FIFO")
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 02:09:55 +03:00
Emmanuel Grumbach 2aabdbdc17 iwlwifi: pcie: enable interrupts before releasing the NIC's CPU
The NIC's CPU gets started after the firmware has been
written to its memory. The first thing it does is to
send an interrupt to let the driver know that it is
running. In order to get that interrupt, the driver needs
to make sure it is not masked. Of course, the interrupt
needs to be enabled in the driver before the CPU starts to
run.
I mistakenly inversed those two steps leading to races
which prevented the driver from getting the alive interrupt
from the firmware.
Fix that.

Cc: <stable@vger.kernel.org> [4.5+]
Fixes: a6bd005fe9 ("iwlwifi: pcie: fix RF-Kill vs. firmware load race")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 02:09:54 +03:00
Haim Dreyfuss e34d975e40 iwlwifi: Add a000 HW family support
Add a000 family configuration to iwl-cfg struct

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 02:09:50 +03:00
Sara Sharon 988b59684d iwlwifi: mvm: support new statistics notification
For 9000 family we will get extended statistics notification
with averaged data for RSSI, TCM and rogue AP detection.
Support it. Future patches will added the required algorithms.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 02:08:57 +03:00
Ayala Beker 2a53d166c4 iwlwifi: mvm: add support for GCMP encryption
Newer hardware supports GCMP and GCMP 256-bit ciphers.
Add support for adding/setting GCMP key for TX mode.

In the TX command handling GCMP-256 is handled in a different
way as the key size should be up to 128-bits:
Set the key value to the key index in the key table,
and specify that this key should be taken form the key table
instead of from the TX command.

While at it - convert security control flags to an enum.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 02:07:49 +03:00
Golan Ben-Ami 9c07e9aafc iwlwifi: Reserve iwl_fw_error_dump_type enum
Reserve a single iwl_fw_error_dump_type enum for external
code utilities.

Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 02:07:48 +03:00
Sara Sharon f65ebd888c iwlwifi: add dump of RFH
Add support of dumping new RFH instead of FH registers.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 02:07:40 +03:00
Guenter Roeck e160f635ab iwlwifi: dvm: Remove unused array 'iwlagn_loose_lookup'
gcc-6 reports the following error if -Werror=unused-const-variable
is enabled.

drivers/net/wireless/intel/iwlwifi/dvm/lib.c:210:21: error:
	'iwlagn_loose_lookup' defined but not used

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 01:26:19 +03:00
Oren Givon 2c4a247e42 iwlwifi: mvm: fix txq aggregation bug
Fix an issue where nullfunc frames and block ack requests
had the same tid as aggregation frames and were queued on
a non aggregation queue. The pending frames counter included
those frames but the check whether to decrement the pending
frames counter relied on the tid status and not on the txq id.
The result was an inconsistent state of the pending frames
counter followed by a failure to remove the station.
This failure triggered SYSASSERT 0x3421.

In addition, fix a situation in DQA mode where the number
of pending frames turned negative. This was due to the TX queue
being on the IWL_EMPTYING_HW_QUEUE_DELBA state and its frames
were still decremented.

Even though the SYSASSERT issue is fixed when DQA is disabled,
the issue is not completely solved when DQA is enabled and
should still be fixed.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Fixes: cf961e1662 ("iwlwifi: mvm: support dqa-mode agg on non-shared queue")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 01:24:44 +03:00
Arnd Bergmann 5a7d87da8d iwlwifi: mvm: avoid harmless -Wmaybe-uninialized warning
gcc is apparently unablel to track the state of the local 'resp_v2'
variable across the kzalloc() function, and warns about the response
variable being used without an initialization:

drivers/net/wireless/intel/iwlwifi/mvm/nvm.c: In function ‘iwl_mvm_update_mcc’:
drivers/net/wireless/intel/iwlwifi/mvm/nvm.c:727:36: warning: ‘mcc_resp_v1’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   resp_cp->n_channels = mcc_resp_v1->n_channels;
drivers/net/wireless/intel/iwlwifi/mvm/nvm.c:721:3: warning: ‘mcc_resp’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   memcpy(resp_cp, mcc_resp, resp_len);

The warning showed up in x86 allmodconfig after my patch to
unhide -Wmaybe-uninitialized warnings by default was merged,
though it always existed in randconfig builds. I did not
catch the warning earlier because I was testing on ARM, which
never produced the warning.

This rearranges the code in a way that improves readability for
both humans and the compiler, and that avoids the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 6fa52430f0 ("iwlwifi: mvm: change mcc update API")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 01:19:54 +03:00
Gregory Greenman 855f492f65 iwlwifi: mvm: rs: add rate scaling support for 160MHz channels
Expand TLC to support 160MHz channels. Full support for A-MSDU
case will be added separately.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 01:19:22 +03:00
Ayala Beker 99980ecfff iwlwifi: mvm: fix RX mpdu status enum
FW sets status for each RX packet.
Enum in the driver doesn't match with FW definition - fix it.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 01:18:43 +03:00
Matti Gottlieb ff7a68d0e7 iwlwifi: mvm: Do not open aggregations for null data packets
Currently we try to open an aggregation for every packet (given that one
is not already open).

This causes redundant overhead (addba/delba) for null data packets.

Do not open an aggregation for null data packets.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 01:18:06 +03:00
Sara Sharon d7fdd0e528 iwlwifi: pcie: poll RFH for RX DMA stop
Somehow we ended up stopping RX using legacy RX registers
even for devices that support RFH. Fix it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 01:16:08 +03:00
Luca Coelho 34777b0000 iwlwifi: mvm: remove unnecessary device conversion when reading the MCC
We convert the mvm device to a PCI device and then back again when
trying to find the handle for the device's ACPI data.  This is
unnecessary, so it can be removed.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 01:15:26 +03:00
Oren Givon f24bbae565 iwlwifi: add new 8265
Add 6 new 8265 series PCI IDs:
  - (0x24FD, 0x1130)
  - (0x24FD, 0x0130)
  - (0x24FD, 0x0910)
  - (0x24FD, 0x0930)
  - (0x24FD, 0x0950)
  - (0x24FD, 0x0850)

CC: <stable@vger.kernel.org> [4.6+]
Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 01:08:56 +03:00
Oren Givon 4b79deece5 iwlwifi: add new 8260 PCI IDs
Add 3 new 8260 series PCI IDs:
  - (0x24F3, 0x10B0)
  - (0x24F3, 0xD0B0)
  - (0x24F3, 0xB0B0)

CC: <stable@vger.kernel.org> [4.1+]
Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 01:08:07 +03:00
Liad Kaufman 97d5be7e22 iwlwifi: mvm: support dqa-enable hcmd
Support sending the DQA-enablement HCMD to the FW when
working in DQA mode.

This HCMD will enable DQA-specific flows in the FW.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:49:21 +03:00
Liad Kaufman 28d0793ed2 iwlwifi: mvm: update aux queue in dqa mode
In DQA mode the AUX queue is mapped elsewhere than in non-
DQA mode. Update the code to reflect this.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:48:55 +03:00
Liad Kaufman 93f436e2c7 iwlwifi: mvm: set sta_id in SCD_QUEUE_CONFIG cmd
Set the correct sta_id in the SCD_QUEUE_CONFIG command sent
to the FW when enabling/disabling queues. This is needed in
DQA-mode to allow the FW to associate between queue and STA.

In case the queue isn't connected to a specific station but
rather is a static "generic" queue - the sta_id should be
set to 0x10 (max supported STA is 0x0f).

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:48:26 +03:00
Liad Kaufman 42db09c1b0 iwlwifi: mvm: support dqa queue sharing
Support DQA queue sharing when no free queue exists for
allocation to a STA that already exists. This means that
a single queue will serve more than a single TID (although
the RA will be the same for all TIDs served).

We try to choose the lowest AC possible, to ensure the
shared queues have the lowest possible combined AC
requirements. The queue to share is chosen only from the
same RA's DATA queues as follows (in descending priority):
 1. An AC_BE queue
 2. Same AC queue
 3. Highest AC queue that is lower than new AC
 4. Any existing AC (there always is at least 1 DATA queue)

If any aggregations existed for any of the TIDs of the
shared queue - they are stopped (the FW is notified), but
no delBA is sent.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:47:41 +03:00
Dan Carpenter 32afd15b0f iwlwifi: mvm: silence uninitialized variable warning
"max_amsdu_len" isn't set if kstrtouint() fails.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:37:21 +03:00
Dan Carpenter bdbc58abe7 iwlwifi: mvm: remove an unused variable
We never initialize ampdu_status so it causes a static checker warning
when we pass it to iwl_mvm_pass_packet_to_mac80211().  Fortunately, it's
never used so we can just remove it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:35:11 +03:00
Luca Coelho 69e046423a iwlwifi: mvm: change scan timeout to a delayed work
Some transports may sleep when writing to registers, which is done
when calling iwl_force_nmi().  So we can't call iwl_force_nmi() in a
timer context.  To solve that, convert the scan timeout timer to a
delayed work.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:33:07 +03:00
Sara Sharon f43495fd5e iwlwifi: mvm: fix possible division by zero
Theoretically we may get only one IRQ from OS, in which
case we will have only 1 queue even in MSIx mode.
This will cause division by zero in the indirection table
calculation.
We do not need send the command in that case, as there is
only one queue so all RX traffic will be directed to it
anyway. Bail out early if there is only one queue.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:33:06 +03:00
Sara Sharon 2047fa5401 iwlwifi: pcie: unify restock calls on init
Currently code calls restock for mq devices during the init
function, unlike sq where restock is called after init.
This causes an harmless but alarming deadlock warning from
lockdep, to fix this - unify the init code.
Rename the restock functions while at it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:15:36 +03:00
Liad Kaufman 9794c64f30 iwlwifi: mvm: support dqa queue inactivation upon timeout
Support marking queues as inactive upon a timeout expiring,
and allow inactive queues to be re-assigned to other RA/TIDs
if no other queue is free.

This is done by keeping a timestamp of the latest frame TXed
for every RA/TID, and then going over the queues currently in
use when a new queue is needed, inactivating all those that
are inactive.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:14:27 +03:00
Johannes Berg ca221c9b94 iwlwifi: change fw.mvm_fw to fw.type
Instead of explicitly indicating the difference between just
DVM and MVM with an mvm_fw boolean change this to fw.type to
be more extensible and easier to understand.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:08:21 +03:00
Johannes Berg 6d48fcd900 iwlwifi: remove useless enum values
Since the values of this enum are used only internally,
we can let the compiler number them.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:06:04 +03:00
Ganesh Goudar f5d6516120 cxgb4: update latest firmware version supported
Change t4fw_version.h to update latest firmware version number

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 11:53:25 -07:00
Or Gerlitz eae033c1b8 net/mlx5: Avoid setting unused var when modifying vport node GUID
GCC complains on unused-but-set-variable, clean this up.

Fixes: 23898c763f ('net/mlx5: E-Switch, Modify node guid on vf set MAC')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 11:52:42 -07:00
Aviv Heller a30b016808 bonding: fix enslavement slave link notifications
Currently, link notifications are not sent by
bond_set_slave_link_state() upon enslavement if
the slave is enslaved when up.

This happens because slave->link default init value
is 0, which is the same as BOND_LINK_UP, resulting
in bond_set_slave_link_state() ignoring this transition.

This patch sets the default value of slave->link to
BOND_LINK_NOCHANGE, assuring it will count as a state
transition and thus trigger notification logic.

Signed-off-by: Aviv Heller <avivh@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 11:51:55 -07:00
David Ahern 73e20b761a net: vrf: Add support for PREROUTING rules on vrf device
Add support for PREROUTING rules with skb->dev set to the vrf device.
INPUT rules are already allowed. Provides symmetry with the output path
which allows POSTROUTING rules.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 11:50:05 -07:00
hayeswang 2609af1936 r8152: fix runtime function for RTL8152
The RTL8152 doesn't have U1U2 and U2P3 features, so use different
runtime functions for RTL812 and RTL8153 by adding autosuspend_en()
to rtl_ops.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 10:22:29 -07:00
Wei Yongjun 96329a181b net: hns: fix return value check in hns_dsaf_get_cfg()
In case of error, function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 10:20:56 -07:00
Yotam Gigi 0b2361d9d9 mlxsw: Add the unresolved next-hops probes
Now, the driver sends arp probes for all unresolved neighbours that are
currently a nexthop for some route on the system. The job is set
periodically every 5 seconds.

Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:31 -07:00
Yotam Gigi b2157149b0 mlxsw: spectrum_router: Add the nexthop neigh activity update
For nexthop neighbours we need to make kernel to think there is a traffic
flowing to them preventing it from going to stale state. Otherwise
kernel would stale it and eventually the neigh would be removed from HW
and nexthop as well. That would reduce ECMP group in HW.

Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:30 -07:00
Jiri Pirko a7ff87acd9 mlxsw: spectrum_router: Implement next-hop routing
Implement next-hop routing offload including ECMP. To make it possible,
introduce next-hop group entity. This entity keeps track of resolved
neighbours and updates HW adjacency table accordingly. Note that HW
next-hops are stored in this adjacency table, in form of MAC.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:30 -07:00
Jiri Pirko a59f0b312a mlxsw: reg: Add Router Algorithmic LPM ECMP Update Register
The RALEU register is used to mass update remote action adjacency index
and ecmp size.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:30 -07:00
Yotam Gigi 089f981683 mlxsw: reg: Add Router Adjacency Table register
The RATR register is used to configure the Router Adjacency (next-hop)
Table.

Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:30 -07:00
Jiri Pirko b090ef0686 mlxsw: Introduce simplistic KVD linear area manager
This is a very simple manager for KVD linear area. Currently, the
allocator will either allocate a single entry from pre-defined sub-area,
or in case more than one entry is needed, it will allocate 32-entry chunk
in other pre-defined sub-area.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:30 -07:00
Jiri Pirko c602242761 mlxsw: spectrum: Define sizes of KVD areas
Override the defaults and define the area sizes ourselves.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:30 -07:00
Jiri Pirko 489107bda1 mlxsw: Add KVD sizes configuration into profile
Up until now we only used hash-based tables in the device, but we are
going to use the linear table for remote routes adjacency lists.

Add the configuration fields that control the size of the linear table.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:29 -07:00
Yotam Gigi a6bf9e933d mlxsw: spectrum_router: Offload neighbours based on NUD state change
Listen to any NEIGH_UPDATE events sent and program the device
accordingly. If NUD state is VALID and neighbour isn't yet offloaded,
then program it into the device's table. Otherwise, just edit its
parameters.

If NUD state machine transitioned neighbour out of VALID state and it's
present in the device's table, then remove it.

Note that the device is programmed in delayed work, as the netevent
notification chain is atomic and prevents us from going to sleep.

Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:29 -07:00
Yotam Gigi c723c735fa mlxsw: spectrum_router: Periodically update the kernel's neigh table
As previously explained, the driver should periodically poll the device
for neighbours activity according to the configured DELAY_PROBE_TIME.
This will prevent active neighbours from staying in STALE state for long
periods of time.

During init configure the polling interval according to the
DELAY_PROBE_TIME used in the default table. In addition, register a
netevent notification block, so that the interval is updated whenever
DELAY_PROBE_TIME changes.

Using the computed interval schedule a delayed work, which will update
the kernel via neigh_event_send() on any active neighbour since the last
delayed work.

Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:29 -07:00
Yotam Gigi 7cf2c205d7 mlxsw: reg: Add Router Algorithmic LPM Unicast Host Table Dump register
The RAUHTD register allows dumping entries from the Router Unicast Host
Table.

Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:29 -07:00
Yotam Gigi 4457b3df3f mlxsw: reg: Add Router Algorithmic LPM Unicast Host Table register
The RAUHT register is used to configure and query the Unicast Host Table
in devices that implement the Algorithmic LPM. In other words, it is
used to configure neighbour entries in the device.

Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:28 -07:00
Jiri Pirko 6cf3c971dc mlxsw: spectrum_router: Add private neigh table
We need to hold some private data for every neigh entry. It would be
possible to do it using neigh_priv_len/ndo_neigh_construct/
ndo_neigh_destroy however only for the port device itself. That would not
work for stacked devices like bridge/team/bond. So introduce a private
neigh table. Hook onto ndos neigh_construct/destroy and add/remove
table entry according to that.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:28 -07:00
Jiri Pirko 18bfb924f0 net: introduce default neigh_construct/destroy ndo calls for L2 upper devices
L2 upper device needs to propagate neigh_construct/destroy calls down to
lower devices. Do this by defining default ndo functions and use them in
team, bond, bridge and vlan.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:28 -07:00
Jiri Pirko 503eebc265 net: add dev arg to ndo_neigh_construct/destroy
As the following patch will allow upper devices to follow the call down
lower devices, we need to add dev here and not rely on n->dev.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 09:06:28 -07:00
Larry Finger 300c32ca84 rtlwifi: rtl8821ae: Fix potential race condition
Flag rfchange_inprogress in struct rtl_ps_ctl is protected by a spinlock
in most routines but not in rtl8821ae_dm_watchdog() which could
lead to a race condition. The necessary locking to prevent this condition
is added.

Reported-by: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-05 17:31:44 +03:00
Larry Finger 4f29b348bd rtlwifi: rtl8723ae: Fix potential race condition
Flag rfchange_inprogress in struct rtl_ps_ctl is protected by a spinlock
in most routines but not in rtl8723e_dm_watchdog(), which could
lead to a race condition. The necessary locking to prevent this condition
is added.

Reported-by: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-05 17:31:43 +03:00
Larry Finger 31c2e76c77 rtlwifi: rtl8723be: Fix potential race condition
Flag rfchange_inprogress in struct rtl_ps_ctl is protected by a spinlock
in most routines but not in rtl8723be_dm_watchdog(), which could
lead to a race condition. The necessary locking to prevent this condition
is added.

Reported-by: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-05 17:31:43 +03:00
Larry Finger c3ae8ec4a2 rtlwifi: rtl8192ee: Fix potential race condition
Flag rfchange_inprogress in struct rtl_ps_ctl is protected by a spinlock
in most routines but not in rtl92ee_dm_watchdog(), which could
lead to a race condition. The necessary locking to prevent this condition
is added.

Reported-by: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-05 17:31:42 +03:00
Larry Finger 204e2ab22e rtlwifi: rtl8188ee: Fix potential race condition
Flag rfchange_inprogress in struct rtl_ps_ctl is protected by a spinlock
in most routines but not in rtl88e_dm_watchdog(), which could
lead to a race condition. The necessary locking to prevent this condition
is added.

Reported-by: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-05 17:31:41 +03:00
Larry Finger 30462b514f rtlwifi: Remove unused parameter from rtl_ps_set_rf_state()
Commit 4b9d8d67b4 ("rtlwifi: rtl8192cu: Remove unused parameter") reworked
this routine. Those changes were later reverted by commit d3feae41a3
("rtlwifi: Update power-save routines for 062814 driver").

There were two changes in commit 4b9d8d67b4. The first of these removed
a parameter from rtl_ps_set_rf_state() that was always false. This is the
change that is restored in the current patch. A second change that reworked
the locking is still being analyzed.

In addition to removing the unused parameter, there is no need for
rtl_ps_set_rf_state() to be exported.

Reported-by: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-05 17:31:41 +03:00
Shengzhen Li bf94209167 mwifiex: disable MSIx interrupt for 8997 chipset
Sometimes MSIx interrupts are received out of order on multi-core
system. This creates a problem when there is a race between data
packet and SLEEP event from firmware. We will disable MSIx interrupt
mode to solve the problem and go with MSI mode.

Signed-off-by: Shengzhen Li <szli@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-05 17:30:57 +03:00
Shengzhen Li 3ee7128579 mwifiex: add get_antenna support for cfg80211
Since commit de3bb771f4 ("cfg80211: add more warnings for inconsistent
ops") the wireless core warns if a driver implements a cfg80211 callback
but doesn't implements the inverse operation.

The mwifiex driver defines a .set_antenna handler but not a .get_antenna
so this not only makes the core to print a warning when creating a new
wiphy but also the antenna isn't reported to user-space apps such as iw.

This patch queries the antenna to the firmware so is properly reported to
user-space. With this patch, the wireless core does not warn anymore and:

$ iw phy phy0 info | grep Antennas
        Available Antennas: TX 0x3 RX 0x3
        Configured Antennas: TX 0x3 RX 0x3

Signed-off-by: Shengzhen Li <szli@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
[javier: expand the commit message]
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-05 16:29:24 +03:00
Javier Martinez Canillas 7d54bacadc mwifiex: add a cfg80211 .get_tx_power operation callback
The mwifiex driver implements a cfg80211 .set_tx_power operation handler
but doesn't have the inverse .get_tx_power callback.

This not only has the effect that the Tx power can't be reported to user
space tools such as iwconfig and iwlist but also that the wireless core
prints a warning when a new wiphy is created due an cfg80211 operation
being implemented without its counterpart.

After this patch, the Tx power is properly reported to user-space tools:

$ iwlist mlan0 txpower
mlan0     unknown transmit-power information.

          Current Tx-Power=13 dBm       (19 mW)

and also the following warning isn't shown anymore on the driver probe:

WARNING: CPU: 3 PID: 127 at net/wireless/core.c:366 wiphy_new_nm+0x66c/0x6ac
Modules linked in: mwifiex_sdio mwifiex
CPU: 3 PID: 127 Comm: kworker/3:1 Tainted: G        W       4.7.0-rc1-next-20160531-00006-g569df5b983f3
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
Workqueue: events request_firmware_work_func
[<c010e1ac>] (unwind_backtrace) from [<c010af38>] (show_stack+0x10/0x14)
[<c010af38>] (show_stack) from [<c0323b9c>] (dump_stack+0x88/0x9c)
[<c0323b9c>] (dump_stack) from [<c011a828>] (__warn+0xe8/0x100)
[<c011a828>] (__warn) from [<c011a8f0>] (warn_slowpath_null+0x20/0x28)
[<c011a8f0>] (warn_slowpath_null) from [<c06a42d4>] (wiphy_new_nm+0x66c/0x6ac)
[<c06a42d4>] (wiphy_new_nm) from [<bf1c24cc>] (mwifiex_register_cfg80211+0x28/0x3f0 [mwifiex])
[<bf1c24cc>] (mwifiex_register_cfg80211 [mwifiex]) from [<bf1a0018>] (mwifiex_fw_dpc+0x2b0/0x474 [mwifiex])
[<bf1a0018>] (mwifiex_fw_dpc [mwifiex]) from [<c040eb74>] (request_firmware_work_func+0x30/0x58)
[<c040eb74>] (request_firmware_work_func) from [<c012fe90>] (process_one_work+0x124/0x338)
[<c012fe90>] (process_one_work) from [<c01300dc>] (worker_thread+0x38/0x4d4)
[<c01300dc>] (worker_thread) from [<c01353b8>] (kthread+0xdc/0xf4)
[<c01353b8>] (kthread) from [<c0107978>] (ret_from_fork+0x14/0x3c)

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-05 16:29:23 +03:00
Javier Martinez Canillas f152bdad62 mwifiex: fix unconditional error return in .add_virtual_intf callback
The commit 7311ea8500 ("mwifiex: fix AP start problem for newly added
interface") attempted to fix an issue when a new AP interface is added.

But the patch didn't check the return value of the functions doing the
firmware calls and returned an error even if the functions didn't fail.

This prevents the network device to be registered properly, so fix it.

Fixes: 7311ea8500 ("mwifiex: fix AP start problem for newly added interface")
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-05 16:27:50 +03:00
Kalle Valo df42919519 * More work on the RX path for the 9000 device series
* Some more dynamic queue allocation work
 * A few bugfixes and other improvements
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Merge tag 'iwlwifi-next-for-kalle-2016-07-01' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

* More work on the RX path for the 9000 device series
* Some more dynamic queue allocation work
* A few bugfixes and other improvements
2016-07-05 15:59:54 +03:00
Florian Fainelli 9da280413a net: r6040: Bump version and date
Bump version to 0.28 and date to 4th of July 2016.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:10:30 -07:00
Florian Fainelli 35566e9687 net: r6040: Update my email
Update my email address in the driver and MAINTAINERS file.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:10:29 -07:00
Florian Fainelli 0305efff11 net: r6040: Utilize napi_complete_done()
We maintain how much work we did in NAPI context, so provide that with
napi_complete_done().

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:10:29 -07:00
Florian Fainelli ffb5bce0bf net: r6040: Utilize __napi_schedule_irqoff
We are already in hard IRQ context, so we can use
__napi_schedule_irqoff() to save a few operations.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:10:29 -07:00
Florian Fainelli 9507ffc2ac net: r6040: Check for skb->xmit_more
Kick the transmission only if this is the last SKB to transmit or the
queue is not already stopped.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:10:29 -07:00
Florian Fainelli 58e6b056b0 net: r6040: Reclaim transmitted buffers in NAPI
Instead of taking one interrupt per packet transmitted, re-use the same
NAPI context to free transmitted buffers. Since we are no longer in hard
IRQ context replace dev_kfree_skb_irq() by dev_kfree_skb().

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:10:29 -07:00
Florian Fainelli a546e557d9 net: r6040: Utilize skb_put_padto()
Pad the SKB to the minimum length of ETH_ZLEN by using skb_put_padto()
and take this operation out of the critical section since there is no
need to check any HW resources before doing that.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:10:29 -07:00
Florian Fainelli 7def171ddc net: r6040: Increase statistics upon transmit completion
r6040_xmit() is increasing transmit statistics during transmission while
this may still fail, do this in r6040_tx() where we complete transmitted
buffers instead.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:10:28 -07:00
Florian Fainelli 3eb415d1af net: r6040: Utilize phy_print_status
Instead of open coding our own version utilize the library provided
function.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:10:28 -07:00
Wei Yongjun 6ebd1a6d74 dwc_eth_qos: remove unused including <linux/version.h>
Remove including <linux/version.h> that don't need it.

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:09:22 -07:00
Gal Pressman e989d5a532 net/mlx5e: Expose flow control counters to ethtool
Just like per prio counters, the global flow counters are queried from
per priority counters register.
Global flow control counters are stored in priority 0 PFC counters.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:06:03 -07:00
Gal Pressman fe6b9bd9eb net/mlx5e: Expose RDMA VPort counters to ethtool
Add the needed descriptors to expose RoCE RDMA counters.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:06:03 -07:00
Maor Gottlieb f913a72aa0 net/mlx5e: Add support to get ethtool flow rules
Enhance the existing get_rxnfc callback:
1. Get flow rule of specific ID.
2. Get all flow rules.
3. Get number of rules.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:06:03 -07:00
Maor Gottlieb 1174fce8d1 net/mlx5e: Support l3/l4 flow type specs in ethtool flow steering
Add support to add flow steering rules with ethtool
of L3/L4 flow types (ip4/tcp4/udp4).
Those rules will be in higher priority than l2 flow rules, in order
to prefer more specific rules.

Mask is not supported for l3/l4 flow types.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:06:02 -07:00
Maor Gottlieb 6dc6071cfc net/mlx5e: Add ethtool flow steering support
Implement etrhtool set_rxnfc callback to support ethtool flow spec
direct steering. This patch adds only the support of ether flow type
spec. L3/L4 flow specs support will be added in downstream patches.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:06:02 -07:00
Maor Gottlieb 0da2d66666 net/mlx5: Properly remove all steering objects
Instead of explicitly cleaning up the well known parts of the steering
tree, we use the generic tree structure to traverse for cleanup.
No functional changes.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:06:02 -07:00
Maor Gottlieb fba53f7b57 net/mlx5: Introduce mlx5_flow_steering structure
Instead of having all steering private name spaces and
steering module fields flat in mlx5_core_priv, we wrap
them in mlx5_flow_steering for better modularity and
API exposure.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:06:02 -07:00
Maor Gottlieb c5bb17302e net/mlx5: Refactor mlx5_add_flow_rule
Reduce the set of arguments passed to mlx5_add_flow_rule
by introducing flow_spec structure.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 00:06:02 -07:00
John Crispin 019d0c9936 net-next: mediatek: remove superfluous free_irq() call
Commit 8067302973 ("net-next: mediatek: add support for IRQ grouping")
adds handling for irq 1 and 2 to the uninit function but did not remove
irq 0 which is not used since irq grouping was introduced. Fix this by
removing the superfluous call to free_irq().

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: John Crispin <john@phrozen.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 23:55:56 -07:00
Fabio Estevam d9329bc222 net: lpc_eth: Remove unused 'pldat' variable
Since commit f786f3564c ("net: ethernet: lpc_eth: use phydev
from struct net_device") the 'pldat' variable became unused, so
just remove it.

Reported-by: Olof's autobuilder <build@lixom.net>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 23:55:29 -07:00
Ido Schimmel 99f44bb352 mlxsw: spectrum: Enable L3 interfaces on top of bridge devices
As with the previously introduced L3 interfaces, listen to 'inetaddr'
notifications sent for bridges devices configured on top of the port
netdevs and create / destroy router interfaces (RIFs) accordingly.
This also includes VLAN devices configured on top of the VLAN-aware
bridge.

The RIFs will be destroyed either when the last IP address is removed or
when the underlying FID is is destroyed.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 18:25:16 -07:00
Ido Schimmel 701b186ebf mlxsw: spectrum: Configure FIDs based on bridge events
Before introducing support for L3 interfaces on top of the VLAN-aware
bridge we need to add some missing infrastructure.

Such an interface can either be the bridge device itself or a VLAN
device on top of it. In the first case the router interface (RIF) is
associated with FID 1, which is created whenever the first port netdev
joins the bridge. We currently assume the default PVID is 1 and that
it's already created, as it seems reasonable. This can be extended in
the future.

However, in the second case it's entirely possible we've yet to create a
matching FID. This can happen if the VLAN device was configured before
making any bridge port member in the VLAN.

Prevent such ordering problems by using the VLAN device's CHANGEUPPER
event to configure the FID. Make the VLAN device hold a reference to the
FID and prevent it from being destroyed even if none of the port netdevs
is using it.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 18:25:16 -07:00
Ido Schimmel 3ba2ebf4a2 mlxsw: spectrum: Unsplit the vFID range
Previous commit deprecated the vFIDs used to get traffic to the CPU
('port_vfids'). Thus, we now use the vFIDs as god intended and the
artificial split is no longer needed.

Rename functions and variables to reflect that.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 18:25:15 -07:00
Ido Schimmel 99724c18fc mlxsw: spectrum: Introduce support for router interfaces
Up until now we only supported bridged interfaces. Packets ingressing
through the switch ports were either classified to FIDs (in the case of
the VLAN-aware bridge) or vFIDs (in the case of VLAN-unaware bridges).
The packets were then forwarded according to the FDB. Routing was done
entirely in slowpath, by splitting the vFID range in two and using the
lower 0.5K vFIDs as dummy bridges that simply flooded all incoming
traffic to the CPU.

Instead, allow packets to be routed in the device by creating router
interfaces (RIFs) that will direct them to the router block.
Specifically, the RIFs introduced here are Sub-port RIFs used for VLAN
devices and port netdevs. Packets ingressing from the {Port / LAG ID, VID}
with which the RIF was programmed with will be assigned to a special
kind of FIDs called rFIDs and from there directed to the router.

Create a RIF whenever the first IPv4 address was programmed on a VLAN /
LAG / port netdev. Destroy it upon removal of the last IPv4 address.
Receive these notifications by registering for the 'inetaddr'
notification chain. A non-zero (10) priority is used for the
notification block, so that RIFs will be created before routes are
offloaded via FIB code.

Note that another trigger for RIF destruction are CHANGEUPPER
notifications causing the underlying FID's reference count to go down to
zero. This can happen, for example, when a VLAN netdev with an IP address
is put under bridge. While this configuration doesn't make sense it does
cause the device and the kernel to get out of sync when the netdev is
unbridged. We intend to address this in the future, hopefully in current
cycle.

Finally, Remove the lower 0.5K vFIDs, as they are deprecated by the RIFs,
which will trap packets according to their DIP.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 18:25:15 -07:00
Ido Schimmel 6e095fd4eb mlxsw: spectrum: Edit RIF properties based on netdev events
We are just about to introduce router interfaces (RIFs), but before that
we need to be able update the device with the correct RIF attributes
whenever they change for the netdev the RIF is backing. Two such
attributes are MTU and MAC.

The MAC is used both to set the source MAC of packets egressing from the
RIF and also to program an FDB rule that will direct packets to the
router block.

Use the existing netdevice notification block and respond to CHANGEADDR
and CHANGEMTU accordingly. Store both attributes in the RIF struct
in case we need to revert to old attributes following a failed update.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 18:25:15 -07:00
Jiri Pirko 7ce856aaaf mlxsw: spectrum: Add couple of lower device helper functions
Add functions that iterate over lower devices and find port device.
As a dependency add netdev_for_each_all_lower_dev and
netdev_for_each_all_lower_dev_rcu macro with
netdev_all_lower_get_next and netdev_all_lower_get_next_rcu shelpers.

Also, add functions to return mlxsw struct according to lower device
found and mlxsw_port struct with a reference to lower device.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 18:25:15 -07:00
Jiri Pirko 61c503f976 mlxsw: spectrum_router: Implement fib4 add/del switchdev obj ops
Implement ipv4 FIB entries addition and removal. Initially, we support
local and broadcast routes using "ip2me" trap action.
Also, unicast routes without nexthop are supported using "local" action.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 18:25:15 -07:00
Jiri Pirko d5a1c749d2 mlxsw: reg: Add Router Algorithmic LPM Unicast Entry Register definition
Serves for adding, updating and removing fib entries.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 18:25:15 -07:00
Jiri Pirko 6b75c4807d mlxsw: spectrum_router: Add virtual router management
Virtual router is a construct used inside HW. In this implementation
we map kernel tables to virtual routers one to one. Introduce management
logic to create virtual routers when needed and destroy in case they are
no longer in use. According to that, call into LPM tree management.
Each virtual router is always bound to one LPM tree.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 18:25:14 -07:00
Jiri Pirko 53342023ee mlxsw: spectrum_router: Implement LPM trees management
Introduce basic LPM tree management allowing to share the trees in
between tables if the used prefixes in the tables are the same.
Build the tree structure according to the used prefixes. Although it is
not optimal for many use cases, this initial implementation does only
simple linear left-tree. More advanced structures will be introduced
later on, possibly including mechanisms to change trees on the fly.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 18:25:14 -07:00
Jiri Pirko 20ae4053e9 mlxsw: reg: Add Router Algorithmic LPM Tree Binding Register definition
This register is used to bind virtual router and protocol to an
allocated LPM tree.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 18:25:14 -07:00
Jiri Pirko a9823359c6 mlxsw: reg: Add Router Algorithmic LPM Structure Tree Register definition
Serves to build LPM tree structure.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-04 18:25:14 -07:00