| Commit message (Collapse) | Author | Age | Files | Lines |
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free_irq() waits until all handlers for this IRQ have completed. As the
relevant handler (mv88e6xxx_g1_irq_thread_fn()) takes the chip's reg_lock
it might never return if the thread calling free_irq() holds this lock.
For the same reason kthread_cancel_delayed_work_sync() in the polling case
must not hold this lock.
Also first free the irq (or stop the worker respectively) such that
mv88e6xxx_g1_irq_thread_work() isn't called any more before the irq
mappings are dropped in mv88e6xxx_g1_irq_free_common() to prevent the
worker thread to call handle_nested_irq(0) which results in a NULL-pointer
exception.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The situation described in the comment can occur also with
PHY_IGNORE_INTERRUPT, therefore change the condition to include it.
Fixes: f555f34fdc58 ("net: phy: fix auto-negotiation stall due to unavailable interrupt")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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FW hsi contains 256 approximation buckets which are split in ramrod into
eight u32 values, but driver is using eight 'unsigned long' variables.
This patch fixes the mcast logic by making the API utilize u32.
Fixes: 83aeb933 ("qed*: Trivial modifications")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There's a possible race where driver can read link status in mid-transition
and see that virtual-link is up yet speed is 0. Since in this
mid-transition we're guaranteed to see a mailbox from MFW soon, we can
afford to treat this as link down.
Fixes: cc875c2e ("qed: Add link support")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Apparently, MFW publishes EEE capabilities even for Fiber-boards that don't
support them, and later since qed internally sets adv_caps it would cause
link-flap avoidance (LFA) to fail when driver would initiate the link.
This in turn delays the link, causing traffic to fail.
Driver has been modified to not to ask MFW for any EEE config if EEE isn't
to be enabled.
Fixes: 645874e5 ("qed: Add support for Energy efficient ethernet.")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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For some time now, if you load the bonding driver and configure bond
parameters via sysfs using minimal config options, such as specifying
nothing but the mode, relying on defaults for everything else, modes
that cannot use arp monitoring (802.3ad, balance-tlb, balance-alb) all
wind up with both arp_interval=0 (as it should be) and miimon=0, which
means the miimon monitor thread never actually runs. This is particularly
problematic for 802.3ad.
For example, from an LNST recipe I've set up:
$ modprobe bonding max_bonds=0"
$ echo "+t_bond0" > /sys/class/net/bonding_masters"
$ ip link set t_bond0 down"
$ echo "802.3ad" > /sys/class/net/t_bond0/bonding/mode"
$ ip link set ens1f1 down"
$ echo "+ens1f1" > /sys/class/net/t_bond0/bonding/slaves"
$ ip link set ens1f0 down"
$ echo "+ens1f0" > /sys/class/net/t_bond0/bonding/slaves"
$ ethtool -i t_bond0"
$ ip link set ens1f1 up"
$ ip link set ens1f0 up"
$ ip link set t_bond0 up"
$ ip addr add 192.168.9.1/24 dev t_bond0"
$ ip addr add 2002::1/64 dev t_bond0"
This bond comes up okay, but things look slightly suspect in
/proc/net/bonding/t_bond0 output:
$ grep -i mii /proc/net/bonding/t_bond0
MII Status: up
MII Polling Interval (ms): 0
MII Status: up
MII Status: up
Now, pull a cable on one of the ports in the bond, then reconnect it, and
you'll see:
Slave Interface: ens1f0
MII Status: down
Speed: 1000 Mbps
Duplex: full
I believe this became a major issue as of commit 4d2c0cda0744, which for
802.3ad bonds, sets slave->link = BOND_LINK_DOWN, with a comment about
relying on link monitoring via miimon to set it correctly, but since the
miimon work queue never runs, the link just stays marked down.
If we simply tweak bond_option_mode_set() slightly, we can check for the
non-arp modes having no miimon value set, and insert BOND_DEFAULT_MIIMON,
which gets things back in full working order. This problem exists as far
back as 4.14, and might be worth fixing in all stable trees since, though
the work-around is to simply specify an miimon value yourself.
Reported-by: Bob Ball <ball@umich.edu>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
Mellanox, mlx5 fixes 2018-07-18
The following series provides fixes to mlx5 core and net device driver.
Please pull and let me know if there's any problem.
For -stable v4.7
net/mlx5e: Don't allow aRFS for encapsulated packets
net/mlx5e: Fix quota counting in aRFS expire flow
For -stable v4.15
net/mlx5e: Only allow offloading decap egress (egdev) flows
net/mlx5e: Refine ets validation function
net/mlx5: Adjust clock overflow work period
For -stable v4.17
net/mlx5: E-Switch, UBSAN fix undefined behavior in mlx5_eswitch_mode
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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We get egress rules through the egdev mechanism when the ingress device
is not supporting offload, with the expected use-case of tunnel decap
ingress rule set on shared tunnel device.
Make sure to offload egress/egdev rules only if decap action (tunnel key
unset) exists there and err otherwise.
Fixes: 717503b9cf57 ("net: sched: convert cls_flower->egress_dev users to tc_setup_cb_egdev infra")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Fix bad alignment of SQ buffer in fragmented QP allocation.
It should start directly after RQ buffer ends.
Take special care of the end case where the RQ buffer does not occupy
a whole page. RQ size is a power of two, so would be the case only for
small RQ sizes (RQ size < PAGE_SIZE).
Fix wrong assignments for sqb->size (mistakenly assigned RQ size),
and for npages value of RQ and SQ.
Fixes: 3a2f70331226 ("net/mlx5: Use order-0 allocations for all WQ types")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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The flow counters binding support commit introduced a code change where
none NULL 'rule_dest' is always passed to mlx5_add_flow_rules, this breaks
'DON'T_TRAP' rules insertion.
The fix uses the equivalent 'dest_num' value instead of dest pointer
at the failed check.
fixes: 3b3233fbf02e ('IB/mlx5: Add flow counters binding support')
Signed-off-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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With debug kernel UBSAN detects the following issue, which might happen
when eswitch instance is not created, fix this by testing the eswitch
pointer before returning the eswitch mode, if not set return mode =
SRIOV_NONE.
[ 32.528951] UBSAN: Undefined behaviour in drivers/net/ethernet/mellanox/mlx5/core/eswitch.c:2219:12
[ 32.528951] member access within null pointer of type 'struct mlx5_eswitch'
[ 32.528951] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.18.0-rc3-dirty #181
[ 32.528951] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.11.0-0-g63451fca13-prebuilt.qemu-project.org 04/01/2014
[ 32.528951] Call Trace:
[ 32.528951] dump_stack+0xc7/0x13b
[ 32.528951] ? show_regs_print_info+0x5/0x5
[ 32.528951] ? __pm_runtime_use_autosuspend+0x140/0x140
[ 32.528951] ubsan_epilogue+0x9/0x49
[ 32.528951] ubsan_type_mismatch_common+0x1f9/0x2c0
[ 32.528951] ? ucs2_as_utf8+0x310/0x310
[ 32.528951] ? device_initialize+0x229/0x2e0
[ 32.528951] __ubsan_handle_type_mismatch+0x9f/0xc9
[ 32.528951] ? __ubsan_handle_divrem_overflow+0x19b/0x19b
[ 32.578008] ? ib_device_get_by_index+0xf0/0xf0
[ 32.578008] mlx5_eswitch_mode+0x30/0x40
[ 32.578008] mlx5_ib_add+0x1e0/0x4a0
Fixes: 57cbd893c4c5 ("net/mlx5: E-Switch, Move representors definition to a global scope")
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
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Driver is yet to support aRFS for encapsulated packets, return early
error in such case.
Fixes: 18c908e477dc ("net/mlx5e: Add accelerated RFS support")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Quota should follow the amount of rules which do expire, and not the
number of rules that were examined, fixed that.
Fixes: 18c908e477dc ("net/mlx5e: Add accelerated RFS support")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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When driver converts HW timestamp to wall clock time it subtracts
the last saved cycle counter from the HW timestamp and converts the
difference to nanoseconds.
The conversion is done by multiplying the cycles difference with the
clock multiplier value as a first step and therefore the cycles
difference should be small enough so that the multiplication product
doesn't exceed 64bit.
The overflow handling routine is in charge of updating the last saved
cycle counter in driver and it is called periodically using kernel
delayed workqueue.
The delay period for this work is calculated using the max HW cycle
counter value (a 41 bit mask) as a base which doesn't take the 64bit
limit into account so the delay period may be incorrect and too
long to prevent a large difference between the HW counter and the last
saved counter in SW.
This change adjusts the work period for the HW clock overflow work by
taking the minimum between the previous value and the quotient of max
u64 value and the clock multiplier value.
Fixes: ef9814deafd0 ("net/mlx5e: Add HW timestamping (TS) support")
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Removed an error message received when configuring ETS total
bandwidth to be zero.
Our hardware doesn't support such configuration, so we shall
reject it in the driver. Nevertheless, we removed the error message
in order to eliminate error messages caused by old userspace tools
who try to pass such configuration.
Fixes: ff0891915cd7 ("net/mlx5e: Fix ETS BW check")
Signed-off-by: Shay Agroskin <shayag@mellanox.com>
Reviewed-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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The calculation of "wqe_size" is not correct when the tx queue is busy in
hinic_xmit_frame().
When there are no free WQEs, the tx flow will unmap the skb buffer, then
ring the doobell for the pending packets. But the "wqe_size" which used
to calculate the doorbell address is not correct. The wqe size should be
cleared to 0, otherwise, it will cause a doorbell error.
This patch fixes the problem.
Reported-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking fixes from David Miller:
"Lots of fixes, here goes:
1) NULL deref in qtnfmac, from Gustavo A. R. Silva.
2) Kernel oops when fw download fails in rtlwifi, from Ping-Ke Shih.
3) Lost completion messages in AF_XDP, from Magnus Karlsson.
4) Correct bogus self-assignment in rhashtable, from Rishabh
Bhatnagar.
5) Fix regression in ipv6 route append handling, from David Ahern.
6) Fix masking in __set_phy_supported(), from Heiner Kallweit.
7) Missing module owner set in x_tables icmp, from Florian Westphal.
8) liquidio's timeouts are HZ dependent, fix from Nicholas Mc Guire.
9) Link setting fixes for sh_eth and ravb, from Vladimir Zapolskiy.
10) Fix NULL deref when using chains in act_csum, from Davide Caratti.
11) XDP_REDIRECT needs to check if the interface is up and whether the
MTU is sufficient. From Toshiaki Makita.
12) Net diag can do a double free when killing TCP_NEW_SYN_RECV
connections, from Lorenzo Colitti.
13) nf_defrag in ipv6 can unnecessarily hold onto dst entries for a
full minute, delaying device unregister. From Eric Dumazet.
14) Update MAC entries in the correct order in ixgbe, from Alexander
Duyck.
15) Don't leave partial mangles bpf program in jit_subprogs, from
Daniel Borkmann.
16) Fix pfmemalloc SKB state propagation, from Stefano Brivio.
17) Fix ACK handling in DCTCP congestion control, from Yuchung Cheng.
18) Use after free in tun XDP_TX, from Toshiaki Makita.
19) Stale ipv6 header pointer in ipv6 gre code, from Prashant Bhole.
20) Don't reuse remainder of RX page when XDP is set in mlx4, from
Saeed Mahameed.
21) Fix window probe handling of TCP rapair sockets, from Stefan
Baranoff.
22) Missing socket locking in smc_ioctl(), from Ursula Braun.
23) IPV6_ILA needs DST_CACHE, from Arnd Bergmann.
24) Spectre v1 fix in cxgb3, from Gustavo A. R. Silva.
25) Two spots in ipv6 do a rol32() on a hash value but ignore the
result. Fixes from Colin Ian King"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (176 commits)
tcp: identify cryptic messages as TCP seq # bugs
ptp: fix missing break in switch
hv_netvsc: Fix napi reschedule while receive completion is busy
MAINTAINERS: Drop inactive Vitaly Bordug's email
net: cavium: Add fine-granular dependencies on PCI
net: qca_spi: Fix log level if probe fails
net: qca_spi: Make sure the QCA7000 reset is triggered
net: qca_spi: Avoid packet drop during initial sync
ipv6: fix useless rol32 call on hash
ipv6: sr: fix useless rol32 call on hash
net: sched: Using NULL instead of plain integer
net: usb: asix: replace mii_nway_restart in resume path
net: cxgb3_main: fix potential Spectre v1
lib/rhashtable: consider param->min_size when setting initial table size
net/smc: reset recv timeout after clc handshake
net/smc: add error handling for get_user()
net/smc: optimize consumer cursor updates
net/nfc: Avoid stalls when nfc_alloc_send_skb() returned NULL.
ipv6: ila: select CONFIG_DST_CACHE
net: usb: rtl8150: demote allmulti message to dev_dbg()
...
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It seems that a *break* is missing in order to avoid falling through
to the default case. Otherwise, checking *chan* makes no sense.
Fixes: 72df7a7244c0 ("ptp: Allow reassigning calibration pin function")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If out ring is full temporarily and receive completion cannot go out,
we may still need to reschedule napi if certain conditions are met.
Otherwise the napi poll might be stopped forever, and cause network
disconnect.
Fixes: 7426b1a51803 ("netvsc: optimize receive completions")
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add dependencies on PCI where necessary.
Fixes: 7e2bc7fb65 ("net: cavium: Drop dependency of NET_VENDOR_CAVIUM on PCI")
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In cases the probing fails the log level of the messages should
be an error.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case the SPI thread is not running, a simple reset of sync
state won't fix the transmit timeout. We also need to wake up the kernel
thread.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Fixes: ed7d42e24eff ("net: qca_spi: fix transmit queue timeout handling")
Signed-off-by: David S. Miller <davem@davemloft.net>
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As long as the synchronization with the QCA7000 isn't finished, we
cannot accept packets from the upper layers. So let the SPI thread
enable the TX queue after sync and avoid unwanted packet drop.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Fixes: 291ab06ecf67 ("net: qualcomm: new Ethernet over SPI driver for QCA7000")
Signed-off-by: David S. Miller <davem@davemloft.net>
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mii_nway_restart is not pm aware which results in a rtnl deadlock.
Implement mii_nway_restart manual by setting BMCR_ANRESTART if
BMCR_ANENABLE is set.
To reproduce:
* plug an asix based usb network interface
* wait until the device enters PM (~5 sec)
* `ip link set eth1 up` will never return
Fixes: d9fe64e51114 ("net: asix: Add in_pm parameter")
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
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t.qset_idx can be indirectly controlled by user-space, hence leading to
a potential exploitation of the Spectre variant 1 vulnerability.
This issue was detected with the help of Smatch:
drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c:2286 cxgb_extension_ioctl()
warn: potential spectre issue 'adapter->msix_info'
Fix this by sanitizing t.qset_idx before using it to index
adapter->msix_info
Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].
[1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This driver can spam the kernel log with multiple messages of:
net eth0: eth0: allmulti set
Usually 4 or 8 at a time (probably because of using ConnMan).
This message doesn't seem useful, so let's demote it from dev_info()
to dev_dbg().
Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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octeon_mgmt driver doesn't drop RX frames that are 1-4 bytes bigger than
MTU set for the corresponding interface. The problem is in the
AGL_GMX_RX0/1_FRM_MAX register setting, which should not account for VLAN
tagging.
According to Octeon HW manual:
"For tagged frames, MAX increases by four bytes for each VLAN found up to a
maximum of two VLANs, or MAX + 8 bytes."
OCTEON_FRAME_HEADER_LEN "define" is fine for ring buffer management, but
should not be used for AGL_GMX_RX0/1_FRM_MAX.
The problem could be easily reproduced using "ping" command. If affected
system has default MTU 1500, other host (having MTU >= 1504) can
successfully "ping" the affected system with payload size 1473-1476,
resulting in IP packets of size 1501-1504 accepted by the mgmt driver.
Fixed system still accepts IP packets of 1500 bytes even with VLAN tagging,
because the limits are lifted in HW as expected, for every VLAN tag.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch has fix for TX timeout while running bi-directional
traffic with 100 Mbps using 5762.
Signed-off-by: Sanjeev Bansal <sanjeevb.bansal@broadcom.com>
Signed-off-by: Siva Reddy Kallam <siva.kallam@broadcom.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Siva Reddy Kallam <siva.kallam@broadcom.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Testing has uncovered a failure case that is not handled properly. In the
event that a login fails and we are not able to recover on the spot, we
return 0 from do_reset, preventing any error recovery code from being
triggered. Additionally, the state is set to "probed" meaning that when we
are able to trigger the error recovery, the driver always comes up in the
probed state. To handle the case properly, we need to return a failure code
here and set the adapter state to the state that we entered the reset in
indicating the state that we would like to come out of the recovery reset
in.
Signed-off-by: John Allen <jallen@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The skb size calculation in lan78xx_tx_bh is in race with the start_xmit,
which could lead to rare kernel oopses. So protect the whole skb walk with
a spin lock. As a benefit we can unlink the skb directly.
This patch was tested on Raspberry Pi 3B+
Link: https://github.com/raspberrypi/linux/issues/2608
Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Floris Bos <bos@je-eigen-domein.nl>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When a new rx packet arrives, the rx path will decide whether to reuse
the remainder of the page or not according to one of the below conditions:
1. frag_info->frag_stride == PAGE_SIZE / 2
2. frags->page_offset + frag_info->frag_size > PAGE_SIZE;
The first condition is no met for when XDP is set.
For XDP, page_offset is always set to priv->rx_headroom which is
XDP_PACKET_HEADROOM and frag_info->frag_size is around mtu size + some
padding, still the 2nd release condition will hold since
XDP_PACKET_HEADROOM + 1536 < PAGE_SIZE, as a result the page will not
be released and will be _wrongly_ reused for next free rx descriptor.
In XDP there is an assumption to have a page per packet and reuse can
break such assumption and might cause packet data corruptions.
Fix this by adding an extra condition (!priv->rx_headroom) to the 2nd
case to avoid page reuse when XDP is set, since rx_headroom is set to 0
for non XDP setup and set to XDP_PACKET_HEADROOM for XDP setup.
No additional cache line is required for the new condition.
Fixes: 34db548bfb95 ("mlx4: add page recycling in receive path")
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Suggested-by: Martin KaFai Lau <kafai@fb.com>
CC: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The netvsc device may need to fallback to running in single queue
mode if host side only wants to support single queue.
Recent change for handling mtu broke this in setup logic.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 3ffe64f1a641 ("hv_netvsc: split sub-channel setup into async and sync")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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During a device failover, there may be latency between the loss
of the current backing device and a notification from firmware that
a failover has occurred. This latency can result in a large amount of
error printouts as firmware returns outgoing traffic with a generic
error code. These are not necessarily errors in this case as the
firmware is busy swapping in a new backing adapter and is not ready
to send packets yet. This patch reclassifies those error codes as
warnings with an explanation that a failover may be pending. All
other return codes will be considered errors.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch remove the following documentation warning
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c:103: warning: Excess function parameter 'priv' description in 'stmmac_axi_setup'
It was introduced in commit afea03656add7 ("stmmac: rework DMA bus setting and introduce new platform AXI structure")
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fix a typo in the word Describe
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On XDP_TX we need to free up the frame only when tun_xdp_tx() returns a
negative value. A positive value indicates that the packet is
successfully enqueued to the ptr_ring, so freeing the page causes
use-after-free.
Fixes: 735fc4054b3a ("xdp: change ndo_xdp_xmit API to support bulking")
Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We accidentally left out the error handling for kstrtoul().
Fixes: a520030e326a ("qlcnic: Implement flash sysfs callback for 83xx adapter")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We should take and release the filter_sem consistently during the
reset process, in the same manner as the mac_lock and reset_lock.
For lockdep consistency we also take the filter_sem for write around
other calls to efx->type->init().
Fixes: c2bebe37c6b6 ("sfc: give ef10 its own rwsem in the filter table instead of filter_lock")
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In some situations we may end up calling down_read while already
holding the semaphore for write, thus hanging. This has been seen
when setting the MAC address for the interface. The hung task log
in this situation includes this stack:
down_read
efx_ef10_filter_insert
efx_ef10_filter_insert_addr_list
efx_ef10_filter_vlan_sync_rx_mode
efx_ef10_filter_add_vlan
efx_ef10_filter_table_probe
efx_ef10_set_mac_address
efx_set_mac_address
dev_set_mac_address
In addition, lockdep rightly points out that nested calling of
down_read is incorrect.
Fixes: c2bebe37c6b6 ("sfc: give ef10 its own rwsem in the filter table instead of filter_lock")
Tested-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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SYSTEMPORT Lite reversed the logic compared to SYSTEMPORT, the
GIB_FCS_STRIP bit is set when the Ethernet FCS is stripped, and that bit
is not set by default. Fix the logic such that we properly check whether
that bit is set or not and we don't forward an extra 4 bytes to the
network stack.
Fixes: 44a4524c54af ("net: systemport: Add support for SYSTEMPORT Lite")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2018-07-12
This series contains updates to ixgbe and e100/e1000 kernel documentation.
Alex fixes ixgbe to ensure that we are more explicit about the ordering
of updates to the receive address register (RAR) table.
Dan Carpenter fixes an issue where we were reading one element beyond
the end of the array.
Mauro Carvalho Chehab fixes formatting issues in the e100.rst and
e1000.rst that were causing errors during 'make htmldocs'.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The ipsec->tx_tbl[] has IXGBE_IPSEC_MAX_SA_COUNT elements so the > needs
to be changed to >= so we don't read one element beyond the end of the
array.
Fixes: 592594704761 ("ixgbe: process the Tx ipsec offload")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This change makes it so that we are much more explicit about the ordering
of updates to the receive address register (RAR) table. Prior to this patch
I believe we may have been updating the table while entries were still
active, or possibly allowing for reordering of things since we weren't
explicitly flushing writes to either the lower or upper portion of the
register prior to accessing the other half.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan
Stefan Schmidt says:
====================
pull-request: ieee802154 for net 2018-07-11
An update from ieee802154 for your *net* tree.
Build system fix for a missing include from Arnd Bergmann.
Setting the IFLA_LINK for the lowpan parent from Lubomir Rintel.
Fixes for some RX corner cases in adf7242 driver by Michael Hennerich.
And some small patches to cleanup our BUG_ON vs WARN_ON usage.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reissuing RC_RX every 400ms - to adjust for offset drift in
receiver see datasheet page 61, OCL section.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
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Only enable RX mode if the netdev is opened.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
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The check is valid but it does not warrant to crash the kernel. A
WARN_ON() is good enough here.
Found by checkpatch.
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
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Instead of having the function name hard-coded (it might change and we
forgot to update them in the debug output) we can use __func__ instead
and also shorter the line so we do not need to break it. Also fix an
extra blank line while being here.
Found by checkpatch.
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
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The check is valid but it does not warrant to crash the kernel. A
WARN_ON() is good enough here.
Found by checkpatch.
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
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