Commit Graph

79767 Commits

Author SHA1 Message Date
Yunsheng Lin
41dafea2af net: hns3: Fix for vf vlan delete failed problem
There are only 128 entries in vf vlan table, if user has added
more than 128 vlan, fw will ignore it and disable the vf vlan
table. So when user deletes the vlan entry that has not been
set to vf vlan table, fw will return not found result and driver
treat that as error, which will cause vlan delete failed problem.

This patch fixes it by returning ok when fw returns not found
result.

Fixes: 6c251711b3 ("net: hns3: Disable vf vlan filter when vf vlan table is full")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-03 22:04:45 -07:00
Michael Chan
00fe9c326d bnxt_en: Do not adjust max_cp_rings by the ones used by RDMA.
Currently, the driver adjusts the bp->hw_resc.max_cp_rings by the number
of MSIX vectors used by RDMA.  There is one code path in open that needs
to check the true max_cp_rings including any used by RDMA.  This code
is now checking for the reduced max_cp_rings which will fail when the
number of cp rings is very small.

To fix this in a clean way, we don't adjust max_cp_rings anymore.
Instead, we add a helper bnxt_get_max_func_cp_rings_for_en() to get the
reduced max_cp_rings when appropriate.

Fixes: ec86f14ea5 ("bnxt_en: Add ULP calls to stop and restart IRQs.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-03 21:59:43 -07:00
Michael Chan
ad95c27bdb bnxt_en: Clean up unused functions.
Remove unused bnxt_subtract_ulp_resources().  Change
bnxt_get_max_func_irqs() to static since it is only locally used.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-03 21:59:43 -07:00
Michael Chan
6b95c3e969 bnxt_en: Fix firmware signaled resource change logic in open.
When the driver detects that resources have changed during open, it
should reset the rx and tx rings to 0.  This will properly setup the
init sequence to initialize the default rings again.  We also need
to signal the RDMA driver to stop and clear its interrupts.  We then
call the RoCE driver to restart if a new set of default rings is
successfully reserved.

Fixes: 25e1acd6b9 ("bnxt_en: Notify firmware about IF state changes.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-03 21:59:43 -07:00
Ivan Mikhaylov
bf68066fcc net/ibm/emac: wrong emac_calc_base call was used by typo
__emac_calc_base_mr1 was used instead of __emac4_calc_base_mr1
by copy-paste mistake for emac4syn.

Fixes: 45d6e54550 ("net/ibm/emac: add 8192 rx/tx fifo size")
Signed-off-by: Ivan Mikhaylov <ivan@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-03 21:50:52 -07:00
Pradeep Nalla
35878618c9 liquidio: Added delayed work for periodically updating the link statistics.
Signed-off-by: Pradeep Nalla <pradeep.nalla@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-03 19:08:07 -07:00
Anthony Wong
9fd0e09a4e r8169: add support for NCube 8168 network card
This card identifies itself as:
  Ethernet controller [0200]: NCube Device [10ff:8168] (rev 06)
  Subsystem: TP-LINK Technologies Co., Ltd. Device [7470:3468]

Adding a new entry to rtl8169_pci_tbl makes the card work.

Link: http://launchpad.net/bugs/1788730
Signed-off-by: Anthony Wong <anthony.wong@ubuntu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-03 19:05:13 -07:00
Niklas Cassel
f1908735f1 ath10k: allow ATH10K_SNOC with COMPILE_TEST
ATH10K_SNOC builds just fine with COMPILE_TEST, so make that possible.

Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-03 19:58:49 +03:00
Rob Herring
e12e643c1d ath6kl: convert to using %pOFn instead of device_node.name
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-03 19:57:59 +03:00
Wen Gong
828853ac58 ath10k: add waiting htt tx complete before wow enable
If there are some tx packets pending in firmware, and then system
enters suspend, firmware will fail for wow enable. This will trigger
mac80211 to stop ath10k and download firmware again, then it is
non-wow suspend.

After add the waiting htt tx complete, then firmware will have some
time window to send or flush the pending tx packets.

Tested with QCA6174 PCI with firmware
WLAN.RM.4.4.1-00109-QCARMSWPZ-1, but this will also affect QCA9377 PCI.
It's not a regression with new firmware releases.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-03 19:57:03 +03:00
Brian Norris
9d5804662c ath10k: retrieve MAC address from system firmware if provided
Devices may provide their own MAC address via system firmware (e.g.,
device tree), especially in the case where the device doesn't have a
useful EEPROM on which to store its MAC address (e.g., for integrated
Wifi).

Use the generic device helper to retrieve the MAC address, and (if
present) honor it above the MAC address advertised by the card.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-03 19:53:18 +03:00
Feras Daoud
19052a3b77 net/mlx5e: IPoIB, Use priv stats in completion rx flow
Since the RQs are shared between all pkey interfaces, the stats
should be taken from where the per-ring stats are stored instead
of the parent RQ.

Fixes: 4c6c615e3f ("net/mlx5e: IPoIB, Add PKEY child interface nic profile")
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 16:22:42 -07:00
Feras Daoud
b75ba3822c net/mlx5e: IPoIB, Add ndo stats support for IPoIB child devices
Expose RX and TX counters by implementing ndo_get_stats64 operation
for child devices.

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 16:22:42 -07:00
Feras Daoud
c57d2358ff net/mlx5e: IPoIB, Add ndo stats support for IPoIB netdevices
Expose RX and TX counters by implementing ndo_get_stats64 operation for
both parent devices.
After this change, all the relevant statistics can be retrieved using
ifconfig.

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 16:22:42 -07:00
Feras Daoud
6dae6f06f0 net/mlx5e: IPoIB, Initialize max_opened_tc in mlx5i_init flow
Enhanced ipoib does not initialize max_opened_tc causing wrong ethtool
statistics. As mlx5e_grp_sw_update_stats relies on this variable, without
this change, the TX statistics will not be updated.

Fixes: 05909babce ("net/mlx5e: Avoid reset netdev stats on configuration changes")
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 16:22:42 -07:00
Andrew Lunn
4382172fa7 net: dsa: mv88e6xxx: Add SERDES phydev_link_change for 6352
The 6352 family has one SERDES interface, which can be used by either
port 4 or port 5. Add interrupt support for the SERDES interface, and
report when the link status changes.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 16:16:23 -07:00
Andrew Lunn
c309b15809 net: dsa: mv88e6xxx: Fix writing to a PHY page.
After changing to the needed page, actually write the value to the
register!

Fixes: 09cb7dfd3f ("net: dsa: mv88e6xxx: describe PHY page and SerDes")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 16:16:23 -07:00
Moritz Fischer
1914104fc6 net: nixge: Fix Kconfig warning with OF_MDIO
Fix Kconfig warning with OF_MDIO where OF_MDIO was
selected unconditionally instead of only when
OF is actually enabled.

Fixes 7e8d5755be ("net: nixge: Add support for 64-bit platforms")
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 16:10:15 -07:00
Jia-Ju Bai
16fe10cf92 net: cadence: Fix a sleep-in-atomic-context bug in macb_halt_tx()
The kernel module may sleep with holding a spinlock.

The function call paths (from bottom to top) in Linux-4.16 are:

[FUNC] usleep_range
drivers/net/ethernet/cadence/macb_main.c, 648:
	usleep_range in macb_halt_tx
drivers/net/ethernet/cadence/macb_main.c, 730:
	macb_halt_tx in macb_tx_error_task
drivers/net/ethernet/cadence/macb_main.c, 721:
	_raw_spin_lock_irqsave in macb_tx_error_task

To fix this bug, usleep_range() is replaced with udelay().

This bug is found by my static analysis tool DSAC.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 16:05:25 -07:00
Jisheng Zhang
bd9f1ee364 net: mvneta: reduce smp_processor_id() calling in mvneta_tx_done_gbe
In the loop of mvneta_tx_done_gbe(), we call the smp_processor_id()
each time, move the call out of the loop to optimize the code a bit.

Before the patch, the loop looks like(under arm64):

        ldr     x1, [x29,#120]
        ...
        ldr     w24, [x1,#36]
        ...
        bl      0 <_raw_spin_lock>
        str     w24, [x27,#132]
        ...

After the patch, the loop looks like(under arm64):

        ...
        bl      0 <_raw_spin_lock>
        str     w23, [x28,#132]
        ...
where w23 is loaded so be ready before the loop.

>From another side, mvneta_tx_done_gbe() is called from mvneta_poll()
which is in non-preemptible context, so it's safe to call the
smp_processor_id() function once.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 14:13:31 -07:00
Jisheng Zhang
7772988ad6 net: mvneta: enable NETIF_F_RXCSUM by default
The code and HW supports NETIF_F_RXCSUM, so let's enable it by default.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 14:13:31 -07:00
Jisheng Zhang
d28118e395 net: mvneta: Don't check NETIF_F_GRO ourself
napi_gro_receive() checks NETIF_F_GRO bit as well, if the bit is not
set, we will go through GRO_NORMAL in napi_skb_finish(), so fall back
to netif_receive_skb_internal(), so we don't need to check NETIF_F_GRO
ourself.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 14:13:31 -07:00
Tony Lindgren
18eb8aea7f net: ethernet: cpsw-phy-sel: prefer phandle for phy sel
The cpsw-phy-sel device is not a child of the cpsw interconnect target
module. It lives in the system control module.

Let's fix this issue by trying to use cpsw-phy-sel phandle first if it
exists and if not fall back to current usage of trying to find the
cpsw-phy-sel child. That way the phy sel driver can be a child of the
system control module where it belongs in the device tree.

Without this fix, we cannot have a proper interconnect target module
hierarchy in device tree for things like genpd.

Note that deferred probe is mostly not supported by cpsw and this patch
does not attempt to fix that. In case deferred probe support is needed,
this could be added to cpsw_slave_open() and phy_connect() so they start
handling and returning errors.

For documenting it, looks like the cpsw-phy-sel is used for all cpsw device
tree nodes. It's missing the related binding documentation, so let's also
update the binding documentation accordingly.

Cc: devicetree@vger.kernel.org
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 13:52:13 -07:00
YueHaibing
2d5c288598 net: bgmac: remove set but not used variable 'err'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/broadcom/bgmac.c: In function 'bgmac_dma_alloc':
drivers/net/ethernet/broadcom/bgmac.c:619:6: warning:
 variable 'err' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-01 22:30:41 -07:00
Florian Fainelli
5582f44360 net: dsa: b53: Provide sensible defaults
The SRAB driver is the default way to communicate with the integrated
switch on iProc platforms and the MMAP driver is the way to communicate
with the integrated switch on DSL BCM63xx and CM BCM33xx.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-01 22:28:19 -07:00
YueHaibing
c9e4f5f067 liquidio: remove set but not used variable 'irh'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/cavium/liquidio/request_manager.c: In function 'lio_process_iq_request_list':
drivers/net/ethernet/cavium/liquidio/request_manager.c:383:27: warning:
 variable 'irh' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-01 22:24:52 -07:00
Sudarsana Reddy Kalluru
c8b795669a qed: Lower the severity of a dcbx log message.
Driver displays an error message for each unrecognized dcbx TLV that's
received from the peer or configured on the device. It is observed that
syslog will be flooded with such messages in certain scenarios e.g.,
frequent link-flaps/lldp-transactions. Changing the severity of this
message to verbose level as it's not an error scenario/message.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-01 22:22:15 -07:00
YueHaibing
181ab62311 bnxt_en: remove set but not used variable 'rx_stats'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c: In function 'bnxt_vf_rep_rx':
drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c:212:28: warning:
 variable 'rx_stats' set but not used [-Wunused-but-set-variable]
  struct bnxt_vf_rep_stats *rx_stats;

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-01 17:45:48 -07:00
YueHaibing
d99b7d6bca net: remove duplicated include from net_failover.c
Remove duplicated include.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-01 17:44:33 -07:00
Jose Abreu
ec6ea8e3ee net: stmmac: Add CBS support in XGMAC2
XGMAC2 uses the same CBS mechanism as GMAC5, only registers offset
changes. Lets use the same TC callbacks and implement the .config_cbs
callback in XGMAC2 core.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-01 17:40:22 -07:00
Ioana Radulescu
34ff68465a dpaa2-eth: Move DPAA2 Ethernet driver from staging to drivers/net
The DPAA2 Ethernet driver supports Freescale/NXP SoCs with DPAA2
(DataPath Acceleration Architecture v2). The driver manages
network objects discovered on the fsl-mc bus.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-01 17:16:59 -07:00
Thomas Falcon
f611a5b4a5 ibmvnic: Include missing return code checks in reset function
Check the return codes of these functions and halt reset
in case of failure. The driver will remain in a dormant state
until the next reset event, when device initialization will be
re-attempted.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-31 23:15:50 -07:00
Dexuan Cui
e04e7a7bbd hv_netvsc: Fix a deadlock by getting rtnl lock earlier in netvsc_probe()
This patch fixes the race between netvsc_probe() and
rndis_set_subchannel(), which can cause a deadlock.

These are the related 3 paths which show the deadlock:

path #1:
    Workqueue: hv_vmbus_con vmbus_onmessage_work [hv_vmbus]
    Call Trace:
     schedule
     schedule_preempt_disabled
     __mutex_lock
     __device_attach
     bus_probe_device
     device_add
     vmbus_device_register
     vmbus_onoffer
     vmbus_onmessage_work
     process_one_work
     worker_thread
     kthread
     ret_from_fork

path #2:
    schedule
     schedule_preempt_disabled
     __mutex_lock
     netvsc_probe
     vmbus_probe
     really_probe
     __driver_attach
     bus_for_each_dev
     driver_attach_async
     async_run_entry_fn
     process_one_work
     worker_thread
     kthread
     ret_from_fork

path #3:
    Workqueue: events netvsc_subchan_work [hv_netvsc]
    Call Trace:
     schedule
     rndis_set_subchannel
     netvsc_subchan_work
     process_one_work
     worker_thread
     kthread
     ret_from_fork

Before path #1 finishes, path #2 can start to run, because just before
the "bus_probe_device(dev);" in device_add() in path #1, there is a line
"object_uevent(&dev->kobj, KOBJ_ADD);", so systemd-udevd can
immediately try to load hv_netvsc and hence path #2 can start to run.

Next, path #2 offloads the subchannal's initialization to a workqueue,
i.e. path #3, so we can end up in a deadlock situation like this:

Path #2 gets the device lock, and is trying to get the rtnl lock;
Path #3 gets the rtnl lock and is waiting for all the subchannel messages
to be processed;
Path #1 is trying to get the device lock, but since #2 is not releasing
the device lock, path #1 has to sleep; since the VMBus messages are
processed one by one, this means the sub-channel messages can't be
procedded, so #3 has to sleep with the rtnl lock held, and finally #2
has to sleep... Now all the 3 paths are sleeping and we hit the deadlock.

With the patch, we can make sure #2 gets both the device lock and the
rtnl lock together, gets its job done, and releases the locks, so #1
and #3 will not be blocked for ever.

Fixes: 8195b1396e ("hv_netvsc: fix deadlock on hotplug")
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-31 23:07:54 -07:00
Marek Behún
0340376ecc net: dsa: mv88e6xxx: Share main switch IRQ
On some boards the interrupt can be shared between multiple devices.
For example on Turris Mox the interrupt is shared between all switches.

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-31 23:05:41 -07:00
Jakub Kicinski
9ad716b95f nfp: wait for posted reconfigs when disabling the device
To avoid leaking a running timer we need to wait for the
posted reconfigs after netdev is unregistered.  In common
case the process of deinitializing the device will perform
synchronous reconfigs which wait for posted requests, but
especially with VXLAN ports being actively added and removed
there can be a race condition leaving a timer running after
adapter structure is freed leading to a crash.

Add an explicit flush after deregistering and for a good
measure a warning to check if timer is running just before
structures are freed.

Fixes: 3d780b926a ("nfp: add async reconfiguration mechanism")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-31 23:01:30 -07:00
Michael Walle
aa4e689ed1 veth: add software timestamping
Provide a software TX timestamp as well as the ethtool query interface
and report the software timestamp capabilities.

Tested with "ethtool -T" and two linuxptp instances each bound to a
tunnel endpoint.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-31 22:56:46 -07:00
David S. Miller
fd3c040b24 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2018-09-01

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Add AF_XDP zero-copy support for i40e driver (!), from Björn and Magnus.

2) BPF verifier improvements by giving each register its own liveness
   chain which allows to simplify and getting rid of skip_callee() logic,
   from Edward.

3) Add bpf fs pretty print support for percpu arraymap, percpu hashmap
   and percpu lru hashmap. Also add generic percpu formatted print on
   bpftool so the same can be dumped there, from Yonghong.

4) Add bpf_{set,get}sockopt() helper support for TCP_SAVE_SYN and
   TCP_SAVED_SYN options to allow reflection of tos/tclass from received
   SYN packet, from Nikita.

5) Misc improvements to the BPF sockmap test cases in terms of cgroup v2
   interaction and removal of incorrect shutdown() calls, from John.

6) Few cleanups in xdp_umem_assign_dev() and xdpsock samples, from Prashant.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-31 17:41:08 -07:00
Magnus Karlsson
93ee30f3e8 xsk: i40e: get rid of useless struct xdp_umem_props
This commit gets rid of the structure xdp_umem_props. It was there to
be able to break a dependency at one point, but this is no longer
needed. The values in the struct are instead stored directly in the
xdp_umem structure. This simplifies the xsk code as well as af_xdp
zero-copy drivers and as a bonus gets rid of one internal header file.

The i40e driver is also adapted to the new interface in this commit.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-09-01 01:38:16 +02:00
Magnus Karlsson
cf484f9f91 i40e: fix possible compiler warning in xsk TX path
With certain gcc versions, it was possible to get the warning
"'tx_desc' may be used uninitialized in this function" for the
i40e_xmit_zc. This was not possible, however this commit simplifies
the code path so that this warning is no longer emitted.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-09-01 01:38:16 +02:00
Lorenzo Bianconi
ac5d5b3f19 mt76: verify evt type in usb mcu response
Verify if evt field is set to EVT_CMD_DONE in usb mcu
response messages. This is a preliminary patch for usb_mcu layer
unification between mt76x0u and mt76x2u driver.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:54:14 +03:00
Lorenzo Bianconi
9b2fd48d36 mt76x2u: run device cleanup routine if resume fails
Cleanup {tx,rx} and mcu queues if resume operation fails

Fixes: ee676cd501 ("mt76: add driver code for MT76x2u based devices")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:53:12 +03:00
Geert Uytterhoeven
81c8eccc24 mt76: Fix comparisons with invalid hardware key index
With gcc 4.1.2:

    drivers/net/wireless/mediatek/mt76/mt76x0/tx.c: In function ‘mt76x0_tx’:
    drivers/net/wireless/mediatek/mt76/mt76x0/tx.c:169: warning: comparison is always true due to limited range of data type
    drivers/net/wireless/mediatek/mt76/mt76x2_tx_common.c: In function ‘mt76x2_tx’:
    drivers/net/wireless/mediatek/mt76/mt76x2_tx_common.c:35: warning: comparison is always true due to limited range of data type

While assigning -1 to a u8 works fine, comparing with -1 does not work
as expected.

Fix this by comparing with 0xff, like is already done in some other
places.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:52:29 +03:00
Siva Rebbagondla
4c62764d0f rsi: improve kernel thread handling to fix kernel panic
While running regressions, observed below kernel panic when sdio disconnect
called. This is because of, kthread_stop() is taking care of
wait_for_completion() by default. When wait_for_completion triggered
in kthread_stop and as it was done already, giving kernel panic.
Hence, removing redundant wait_for_completion() from rsi_kill_thread().

... skipping ...
BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffff810a63df>] exit_creds+0x1f/0x50
PGD 0
Oops: 0002 [#1] SMP
CPU: 0 PID: 6502 Comm: rmmod Tainted: G  OE   4.15.9-Generic #154-Ubuntu
Hardware name: Dell Inc. Edge Gateway 3003/ , BIOS 01.00.00 04/17/2017
Stack:
ffff88007392e600 ffff880075847dc0 ffffffff8108160a 0000000000000000
ffff88007392e600 ffff880075847de8 ffffffff810a484b ffff880076127000
ffff88003cd3a800 ffff880074f12a00 ffff880075847e28 ffffffffc09bed15
Call Trace:
[<ffffffff8108160a>] __put_task_struct+0x5a/0x140
[<ffffffff810a484b>] kthread_stop+0x10b/0x110
[<ffffffffc09bed15>] rsi_disconnect+0x2f5/0x300 [ven_rsi_sdio]
[<ffffffff81578bcb>] ? __pm_runtime_resume+0x5b/0x80
[<ffffffff816f0918>] sdio_bus_remove+0x38/0x100
[<ffffffff8156cc64>] __device_release_driver+0xa4/0x150
[<ffffffff8156d7a5>] driver_detach+0xb5/0xc0
[<ffffffff8156c6c5>] bus_remove_driver+0x55/0xd0
[<ffffffff8156dfbc>] driver_unregister+0x2c/0x50
[<ffffffff816f0b8a>] sdio_unregister_driver+0x1a/0x20
[<ffffffffc09bf0f5>] rsi_module_exit+0x15/0x30 [ven_rsi_sdio]
[<ffffffff8110cad8>] SyS_delete_module+0x1b8/0x210
[<ffffffff81851dc8>] entry_SYSCALL_64_fastpath+0x1c/0xbb

Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:49:48 +03:00
Siva Rebbagondla
baa8caf4ab rsi: fix memory alignment issue in ARM32 platforms
During testing in ARM32 platforms, observed below kernel panic, as driver
accessing data beyond the allocated memory while submitting URB to USB.

Fix: Resolved this by specifying correct length by considering 64 bit
alignment. so that, USB bus driver will access only allocated memory.

Unit-test: Tested and confirm that driver bring up and scanning,
connection and data transfer works fine with this fix.

...skipping...
[   25.389450] Unable to handle kernel paging request at virtual
	       address 5aa11422
[   25.403078] Internal error: Oops: 5 [#1] SMP ARM
[   25.407703] Modules linked in: rsi_usb
[   25.411473] CPU: 1 PID: 317 Comm: RX-Thread Not tainted 4.18.0-rc7 #1
[   25.419221] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[   25.425764] PC is at skb_release_data+0x90/0x168
[   25.430393] LR is at skb_release_all+0x28/0x2c
[   25.434842] pc : [<807435b0>] lr : [<80742ba0>] psr: 200e0013 5aa1141e
[   25.464633] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32 ISA ARM Segment none
[   25.477524] Process RX-Thread (pid: 317, stack limit = 0x(ptrval))
[   25.483709] Stack: (0xedf69ed8 to 0xedf6a000)
[   25.569907] Backtrace:
[   25.572368] [<80743520>] (skb_release_data) from [<80742ba0>]
	       (skb_release_all+0x28/0x2c)
[   25.580555] r9:7f00258c r8:00000001 r7:ee355000 r6:eddab0d0
	       r5:eddab000 r4:eddbb840
[   25.588308] [<80742b78>] (skb_release_all) from [<807432cc>]
	       (consume_skb+0x30/0x50)
[   25.596055] r5:eddab000 r4:eddbb840
[   25.599648] [<8074329c>] (consume_skb) from [<7f00117c>]
	       (rsi_usb_rx_thread+0x64/0x12c [rsi_usb])
[   25.608524] r5:eddab000 r4:eddbb840
[   25.612116] [<7f001118>] (rsi_usb_rx_thread [rsi_usb]) from
	       [<80142750>] (kthread+0x11c/0x15c)
[   25.620735] r10:ee9ff9e0 r9:edcde3b8 r8:ee355000 r7:edf68000
	       r6:edd3a780 r5:00000000
[   25.628567] r4:edcde380
[   25.631110] [<80142634>] (kthread) from [<801010e8>]
	       (ret_from_fork+0x14/0x2c)
[   25.638336] Exception stack(0xedf69fb0 to 0xedf69ff8)
[   25.682929] ---[ end trace 8236a5496f5b5d3b ]---

Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:49:47 +03:00
Rasmus Villemoes
cb18e2e9ec brcmfmac: fix wrong strnchr usage
strnchr takes arguments in the order of its name: string, max bytes to
read, character to search for. Here we're passing '\n' aka 10 as the
buffer size, and searching for sizeof(buf) aka BRCMF_DCMD_SMLEN aka
256 (aka '\0', since it's implicitly converted to char) within those 10
bytes.

Just interchanging the last two arguments would still leave a bug,
because if we've been successful once, there are not sizeof(buf)
characters left after the new value of p.

Since clmver is immediately afterwards passed as a %s argument, I assume
that it is actually a properly nul-terminated string. For that case, we
have strreplace().

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:48:02 +03:00
Dan Carpenter
f483039cf5 rt2x00: use simple_read_from_buffer()
The problem with this copy_to_user() calls is that they don't ensure
that "size" is less than the "length" which the user provided.

Obviously, this is debugfs and "size" is normally going to be very small
so it probably doesn't matter, but this is the correct thing to do.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:47:29 +03:00
Ganapathi Bhat
33a164fa8a mwifex: free rx_cmd skb in suspended state
USB suspend handler will kill the presubmitted rx_cmd URB. This
triggers a call to the corresponding URB complete handler, which
will free the rx_cmd skb, associated with rx_cmd URB. Due to a
possible race betwen suspend handler and main thread, depicted in
'commit bfcacac6c84b ("mwifiex: do no submit URB in suspended
state")', it is possible that the rx_cmd skb will fail to get
freed. This causes a memory leak, since the resume handler will
always allocate a new rx_cmd skb.

To fix this, free the rx_cmd skb in mwifiex_usb_submit_rx_urb, if
the device is in suspended state.

Signed-off-by: Vidya Dharmaraju <vidyad@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:46:53 +03:00
Ganapathi Bhat
7bd4628c2f mwifiex: do no submit URB in suspended state
There is a possible race between USB suspend and main thread:

1. After processing the command response, main thread will submit
rx_cmd URB back so as to process next command response, by
calling mwifiex_usb_submit_rx_urb.

2. During USB suspend, the suspend handler will check if rx_cmd
URB is pending(submitted) and if true, kill this URB.

There is a possible race between #1 and #2, where rx_cmd URB will
be submitted by main thread(#1) after the suspend handler check
in #2.

To fix this, check if device is already suspended in
mwifiex_usb_submit_rx_urb, in which case do not submit the URB.

Signed-off-by: Vidya Dharmaraju <vidyad@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:46:53 +03:00
Larry Finger
199ba9faca rtl8187: Fix warning generated when strncpy() destination length matches the sixe argument
In gcc8, when the 3rd argument (size) of a call to strncpy() matches the
length of the first argument, the compiler warns of the possibility of an
unterminated string. Using strlcpy() forces a null at the end.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:46:19 +03:00
Colin Ian King
5945310a17 orinoco: remove unused array encaps_hdr and macro ENCAPS_OVERHEAD
Array encaps_hdr and macro ENCAPS_OVERHEAD are declared but are
not being used, hence they are redundant and can be removed.

Cleans up clang warning:
warning: 'encaps_hdr' defined but not used [-Wunused-const-variable=]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:45:19 +03:00