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setup_net()/cleanup_net()
{un,}register_netdevice_notifier() iterate over all net namespaces
hashed to net_namespace_list. But pernet_operations register and
unregister netdevices in unhashed net namespace, and they are not
seen for netdevice notifiers. This results in asymmetry:
1)Race with register_netdevice_notifier()
pernet_operations::init(net) ...
register_netdevice() ...
call_netdevice_notifiers() ...
... nb is not called ...
... register_netdevice_notifier(nb) -> net skipped
... ...
list_add_tail(&net->list, ..) ...
Then, userspace stops using net, and it's destructed:
pernet_operations::exit(net)
unregister_netdevice()
call_netdevice_notifiers()
... nb is called ...
This always happens with net::loopback_dev, but it may be not the only device.
2)Race with unregister_netdevice_notifier()
pernet_operations::init(net)
register_netdevice()
call_netdevice_notifiers()
... nb is called ...
Then, userspace stops using net, and it's destructed:
list_del_rcu(&net->list) ...
pernet_operations::exit(net) unregister_netdevice_notifier(nb) -> net skipped
dev_change_net_namespace() ...
call_netdevice_notifiers()
... nb is not called ...
unregister_netdevice()
call_netdevice_notifiers()
... nb is not called ...
This race is more danger, since dev_change_net_namespace() moves real
network devices, which use not trivial netdevice notifiers, and if this
will happen, the system will be left in unpredictable state.
The patch closes the race. During the testing I found two places,
where register_netdevice_notifier() is called from pernet init/exit
methods (which led to deadlock) and fixed them (see previous patches).
The review moved me to one more unusual registration place:
raw_init() (can driver). It may be a reason of problems,
if someone creates in-kernel CAN_RAW sockets, since they
will be destroyed in exit method and raw_release()
will call unregister_netdevice_notifier(). But grep over
kernel tree does not show, someone creates such sockets
from kernel space.
Theoretically, there can be more places like this, and which are
hidden from review, but we found them on the first bumping there
(since there is no a race, it will be 100% reproducible).
Signed-off-by: Kirill Tkhai <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Register netdevice notifier for every iptable entry
is not good, since this breaks modularity, and
the hidden synchronization is based on rtnl_lock().
This patch reworks the synchronization via new lock,
while the rest of logic remains as it was before.
This is required for the next patch.
Tested via:
while :; do
unshare -n iptables -t mangle -A OUTPUT -j TEE --gateway 1.1.1.2 --oif lo;
done
Signed-off-by: Kirill Tkhai <[email protected]>
Acked-by: Pablo Neira Ayuso <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Currently, driver registers it from pernet_operations::init method,
and this breaks modularity, because initialization of net namespace
and netdevice notifiers are orthogonal actions. We don't have
per-namespace netdevice notifiers; all of them are global for all
devices in all namespaces.
Signed-off-by: Kirill Tkhai <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Mike Looijmans says:
====================
of_net: Implement of_get_nvmem_mac_address helper
Posted this as a small set now, with an (optional) second patch that shows
how the changes work and what I've used to test the code on a Topic Miami board.
I've taken the liberty to add appropriate "Acked" and "Review" tags.
v4: Replaced "6" with ETH_ALEN
v3: Add patch that implements mac in nvmem for the Cadence MACB controller
Remove the integrated of_get_mac_address call
v2: Use of_nvmem_cell_get to avoid needing the assiciated device
Use void* instead of char*
Add devicetree binding doc
====================
Signed-off-by: David S. Miller <[email protected]>
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Call of_get_nvmem_mac_address() to fetch the MAC address from an nvmem
cell, if one is provided in the device tree. This allows the address to
be stored in an I2C EEPROM device for example.
Signed-off-by: Mike Looijmans <[email protected]>
Acked-by: Nicolas Ferre <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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It's common practice to store MAC addresses for network interfaces into
nvmem devices. However the code to actually do this in the kernel lacks,
so this patch adds of_get_nvmem_mac_address() for drivers to obtain the
address from an nvmem cell provider.
This is particulary useful on devices where the ethernet interface cannot
be configured by the bootloader, for example because it's in an FPGA.
Signed-off-by: Mike Looijmans <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Jakub Kicinski says:
====================
nfp: flower: handle MTU changes
This set improves MTU handling for flower offload. The max MTU is
correctly capped and physical port MTU is communicated to the FW
(and indirectly HW).
====================
Signed-off-by: David S. Miller <[email protected]>
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Trigger a port mod message to request an MTU change on the NIC when any
physical port representor is assigned a new MTU value. The driver waits
10 msec for an ack that the FW has set the MTU. If no ack is received the
request is rejected and an appropriate warning flagged.
Rather than maintain an MTU queue per repr, one is maintained per app.
Because the MTU ndo is protected by the rtnl lock, there can never be
contention here. Portmod messages from the NIC are also protected by
rtnl so we first check if the portmod is an ack and, if so, handle outside
rtnl and the cmsg work queue.
Acks are detected by the marking of a bit in a portmod response. They are
then verfied by checking the port number and MTU value expected by the
app. If the expected MTU is 0 then no acks are currently expected.
Also, ensure that the packet headroom reserved by the flower firmware is
considered when accepting an MTU change on any repr.
Signed-off-by: John Hurley <[email protected]>
Reviewed-by: Jakub Kicinski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Rename the 'change_mtu' app callback to 'check_mtu'. This is called
whenever an MTU change is requested on a netdev. It can reject the
change but is not responsible for implementing it.
Introduce a new 'repr_change_mtu' app callback that is hit when the MTU
of a repr is to be changed. This is responsible for performing the MTU
change and verifying it.
Signed-off-by: John Hurley <[email protected]>
Reviewed-by: Jakub Kicinski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Florian Fainelli says:
====================
phylink: API changes
This patch series contains two API changes to PHYLINK which will later be used
by DSA to migrate to PHYLINK. Because these are API changes that impact other
outstanding work (e.g: MVPP2) I would rather get them included sooner to minimize
conflicts.
Thank you!
Changes in v2:
- added missing documentation to mac_link_{up,down} that the interface
must be configured in mac_config()
- added Russell's, Andrew's and my tags
====================
Signed-off-by: David S. Miller <[email protected]>
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Provide a pointer to the SFP bus in struct net_device, so that the
ethtool module EEPROM methods can access the SFP directly, rather
than needing every user to provide a hook for it.
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: Russell King <[email protected]>
Signed-off-by: Florian Fainelli <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: Russell King <[email protected]>
Signed-off-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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In preparation for having DSA transition entirely to PHYLINK, we need to pass a
PHY interface type to the mac_link_{up,down} callbacks because we may have to
make decisions on that (e.g: turn on/off RGMII interfaces etc.). We do not pass
an entire phylink_link_state because not all parameters (pause, duplex etc.) are
defined when the link is down, only link and interface are.
Update mvneta accordingly since it currently implements phylink_mac_ops.
Acked-by: Russell King <[email protected]>
Signed-off-by: Florian Fainelli <[email protected]>
Acked-by: Russell King <[email protected]>
Signed-off-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Trivial fix to spelling mistake in message text
Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Shrikrishna Khare would no longer maintain the vmxnet3 driver. Taking
over the role of vmxnet3 maintainer.
Signed-off-by: Ronak Doshi <[email protected]>
Signed-off-by: Shrikrishna Khare <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Florian Fainelli says:
====================
net: Broadcom drivers coalescing fixes
Following Tal's review of the adaptive RX/TX coalescing feature added to the
SYSTEMPORT and GENET driver a number of things showed up:
- adaptive TX coalescing is not actually a good idea with the current way
the estimator will program the ring, this results in a higher CPU load, NAPI
on TX already does a reasonably good job at maintaining the interrupt count low
- both SYSTEMPORT and GENET would suffer from the same issues while configuring
coalescing parameters where the values would just not be applied correctly
based on user settings, so we fix that too
Tal, thanks again for your feedback, I would appreciate if you could review that
the new behavior appears to be implemented correctly.
Thanks!
Changes in v2:
- added Tal's reviewed-by to the first patch
- split DIM initialization from coalescing parameters initialization
- avoid duplicating the same code in bcmgenet_set_coalesce() when configuring RX rings
- fixed the condition where default DIM parameters would be applied when
adaptive RX coalescing would be enabled, do this only if it was disabled before
====================
Signed-off-by: David S. Miller <[email protected]>
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There were a number of issues with setting the RX coalescing parameters:
- we would not be preserving values that would have been configured
across close/open calls, instead we would always reset to no timeout
and 1 interrupt per packet, this would also prevent DIM from setting its
default usec/pkts values
- when adaptive RX would be turned on, we woud not be fetching the
default parameters, we would stay with no timeout/1 packet per interrupt
until the estimator kicks in and changes that
- finally disabling adaptive RX coalescing while providing parameters
would not be honored, and we would stay with whatever DIM had previously
determined instead of the user requested parameters
Fixes: 9f4ca05827a2 ("net: bcmgenet: Add support for adaptive RX coalescing")
Signed-off-by: Florian Fainelli <[email protected]>
Reviewed-by: Tal Gilboa <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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There were a number of issues with setting the RX coalescing parameters:
- we would not be preserving values that would have been configured
across close/open calls, instead we would always reset to no timeout
and 1 interrupt per packet, this would also prevent DIM from setting its
default usec/pkts values
- when adaptive RX would be turned on, we woud not be fetching the
default parameters, we would stay with no timeout/1 packet per
interrupt until the estimator kicks in and changes that
- finally disabling adaptive RX coalescing while providing parameters
would not be honored, and we would stay with whatever DIM had
previously determined instead of the user requested parameters
Fixes: b6e0e875421e ("net: systemport: Implement adaptive interrupt coalescing")
Signed-off-by: Florian Fainelli <[email protected]>
Reviewed-by: Tal Gilboa <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Adaptive TX coalescing is not currently giving us any advantages and
ends up making the CPU spin more frequently until TX completion. Deny
and disable adaptive TX coalescing for now and rely on static
configuration, we can always add it back later.
Reviewed-by: Tal Gilboa <[email protected]>
Signed-off-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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NETIF_F_HW_VLAN_[CS]TAG_FILTER features require more than just a bit
flip in dev->features in order to keep the driver in a consistent state.
These features notify the driver of each added/removed vlan, but toggling
of vlan-filter does not notify the driver accordingly for each of the
existing vlans.
This patch implements a similar solution to NETIF_F_RX_UDP_TUNNEL_PORT
behavior (which notifies the driver about UDP ports in the same manner
that vids are reported).
Each toggling of the features propagates to the 8021q module, which
iterates over the vlans and call add/kill ndo accordingly.
Signed-off-by: Gal Pressman <[email protected]>
Reviewed-by: Tariq Toukan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Fix to return a negative error code from the hash filter init error
handling case instead of 0, as done elsewhere in this function.
Fixes: 5c31254e35a8 ("cxgb4: initialize hash-filter configuration")
Signed-off-by: Wei Yongjun <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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To make the test a bit clearer and to reduce object size a little.
Miscellanea:
o remove now unnecessary static const array
$ size ip_set_hash_mac.o*
text data bss dec hex filename
22822 4619 64 27505 6b71 ip_set_hash_mac.o.allyesconfig.new
22932 4683 64 27679 6c1f ip_set_hash_mac.o.allyesconfig.old
10443 1040 0 11483 2cdb ip_set_hash_mac.o.defconfig.new
10507 1040 0 11547 2d1b ip_set_hash_mac.o.defconfig.old
Signed-off-by: Joe Perches <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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underflow/policy"
This reverts commit 0d7df906a0e78079a02108b06d32c3ef2238ad25.
Valdis Kletnieks reported that xtables is broken in linux-next since
0d7df906a0e78 ("netfilter: x_tables: ensure last rule in base chain
matches underflow/policy"), as kernel rejects the (well-formed) ruleset:
[ 64.402790] ip6_tables: last base chain position 1136 doesn't match underflow 1344 (hook 1)
mark_source_chains is not the correct place for such a check, as it
terminates evaluation of a chain once it sees an unconditional verdict
(following rules are known to be unreachable). It seems preferrable to
fix libiptc instead, so remove this check again.
Fixes: 0d7df906a0e78 ("netfilter: x_tables: ensure last rule in base chain matches underflow/policy")
Reported-by: Valdis Kletnieks <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Due to the way percpu counters are allocated and freed in blocks,
it is not safe to free counters individually. Currently all callers
do the right thing, but let's note this restriction.
Fixes: ae0ac0ed6fcf ("netfilter: x_tables: pack percpu counter allocations")
Signed-off-by: Ben Hutchings <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Merge assignment with return statement to directly return the value.
Signed-off-by: Arushi Singhal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Replace opencoded implementation of nft_set_lookup_global() by call to
this function.
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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To prepare shorter introduction of shorter function prefix.
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Register conntrack hooks if the user adds NAT chains. Users get confused
with the existing behaviour since they will see no packets hitting this
chain until they add the first rule that refers to conntrack.
This patch adds new ->init() and ->free() indirections to chain types
that can be used by NAT chains to invoke the conntrack dependency.
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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One module per supported filter chain family type takes too much memory
for very little code - too much modularization - place all chain filter
definitions in one single file.
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Use WARN_ON() instead since it should not happen that neither family
goes over NFPROTO_NUMPROTO nor there is already a chain of this type
already registered.
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Use nft_ prefix. By when I added chain types, I forgot to use the
nftables prefix. Rename enum nft_chain_type to enum nft_chain_types too,
otherwise there is an overlap.
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Instead of unnecessary const declarations, use the generic functions to
save a little object space.
$ size net/bridge/netfilter/ebt_stp.o*
text data bss dec hex filename
1250 144 0 1394 572 net/bridge/netfilter/ebt_stp.o.new
1344 144 0 1488 5d0 net/bridge/netfilter/ebt_stp.o.old
Signed-off-by: Joe Perches <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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If a page is already locked, attempting to dirty it leads to a deadlock
in lock_page(). This is what currently happens to ITER_BVEC pages when
a dio-enabled loop device is backed by ceph:
$ losetup --direct-io /dev/loop0 /mnt/cephfs/img
$ xfs_io -c 'pread 0 4k' /dev/loop0
Follow other file systems and only dirty ITER_IOVEC pages.
Cc: [email protected]
Signed-off-by: "Yan, Zheng" <[email protected]>
Reviewed-by: Ilya Dryomov <[email protected]>
Signed-off-by: Ilya Dryomov <[email protected]>
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This patch adds initial documentation for the Netfilter flowtable
infrastructure.
Reviewed-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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This patch is part of a proposal to add a string filter to
ebtables, which would be similar to the string filter in
iptables. Like iptables, the ebtables filter uses the xt_string
module.
Signed-off-by: Bernie Harris <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Currently ebtables assumes that the revision number of all match
modules is 0, which is an issue when trying to use existing
xtables matches with ebtables. The solution is to modify ebtables
to allow extensions to specify a revision number, similar to
iptables. This gets passed down to the kernel, which is then able
to find the match module correctly.
To main binary backwards compatibility, the size of the ebt_entry
structures is not changed, only the size of the name field is
decreased by 1 byte to make room for the revision field.
Signed-off-by: Bernie Harris <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix a DM multipath regression introduced in a v4.16-rc6 commit:
restore support for loading, and attaching, scsi_dh modules during
multipath table load. Otherwise some users may find themselves unable
to boot, as was reported today:
https://marc.info/?l=linux-scsi&m=152231276114962&w=2
- Fix a DM core ioctl permission check regression introduced in a
v4.16-rc5 commit.
* tag 'for-4.16/dm-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: fix dropped return code from dm_get_bdev_for_ioctl
dm mpath: fix support for loading scsi_dh modules during table load
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Pull rdma fixes from Jason Gunthorpe:
"It has been fairly silent lately on our -rc front. Big queue of
patches on the mailing list going to for-next though.
Bug fixes:
- qedr driver bugfixes causing application hangs, wrong uapi errnos,
and a race condition
- three syzkaller found bugfixes in the ucma uapi
Regression fixes for things introduced in 4.16:
- Crash on error introduced in mlx5 UMR flow
- Crash on module unload/etc introduced by bad interaction of
restrack and mlx5 patches this cycle
- Typo in a two line syzkaller bugfix causing a bad regression
- Coverity report of nonsense code in hns driver"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/ucma: Introduce safer rdma_addr_size() variants
RDMA/hns: ensure for-loop actually iterates and free's buffers
RDMA/ucma: Check that device exists prior to accessing it
RDMA/ucma: Check that device is connected prior to access it
RDMA/rdma_cm: Fix use after free race with process_one_req
RDMA/qedr: Fix QP state initialization race
RDMA/qedr: Fix rc initialization on CNQ allocation failure
RDMA/qedr: fix QP's ack timeout configuration
RDMA/ucma: Correct option size check using optlen
RDMA/restrack: Move restrack_clean to be symmetrical to restrack_init
IB/mlx5: Don't clean uninitialized UMR resources
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Pull MTD fixes from Boris Brezillon:
"Two fixes, one in the atmel NAND driver and another one in the
CFI/JEDEC code.
Summary:
- Fix a bug in Atmel ECC engine driver
- Fix a bug in the CFI/JEDEC driver"
* tag 'mtd/fixes-for-4.16' of git://git.infradead.org/linux-mtd:
mtd: jedec_probe: Fix crash in jedec_read_mfr()
mtd: nand: atmel: Fix get_sectorsize() function
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dm_get_bdev_for_ioctl()'s return of 0 or 1 must be the result from
prepare_ioctl (1 means the ioctl was issued to a partition, 0 means it
wasn't). Unfortunately commit 519049afea ("dm: use blkdev_get rather
than bdgrab when issuing pass-through ioctl") reused the variable 'r'
to store the return from blkdev_get() that follows prepare_ioctl()
-- whereby dropping prepare_ioctl()'s result on the floor.
This can lead to an ioctl or persistent reservation being issued to a
partition going unnoticed, which implies the extra permission check for
CAP_SYS_RAWIO is skipped.
Fix this by using a different variable to store blkdev_get()'s return.
Fixes: 519049afea ("dm: use blkdev_get rather than bdgrab when issuing pass-through ioctl")
Reported-by: Alasdair G Kergon <[email protected]>
Signed-off-by: Mike Snitzer <[email protected]>
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Daniel Borkman says:
====================
pull-request: bpf 2018-03-29
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix nfp to properly check max insn count while emitting
instructions in the JIT which was wrongly comparing bytes
against number of instructions before, from Jakub.
2) Fix for bpftool to avoid usage of hex numbers in JSON
output since JSON doesn't accept hex numbers with 0x
prefix, also from Jakub.
====================
Signed-off-by: David S. Miller <[email protected]>
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John Fastabend says:
====================
This series adds the BPF_F_INGRESS flag support to the redirect APIs.
Bringing the sockmap API in-line with the cls_bpf redirect APIs.
We add it to both variants of sockmap programs, the first patch adds
support for tx ulp hooks and the third patch adds support for the recv
skb hooks. Patches two and four add tests for the corresponding
ingress redirect hooks.
Follow on patches can address busy polling support, but next series
from me will move the sockmap sample program into selftests.
v2: added static to function definition caught by kbuild bot
v3: fixed an error branch with missing mem_uncharge
in recvmsg op moved receive_queue check outside of RCU region
====================
Signed-off-by: Daniel Borkmann <[email protected]>
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Add BPF_SK_SKB_STREAM_VERDICT tests for ingress hook. While
we do this also bring stream tests in-line with MSG based
testing.
A map for skb options is added for userland to push options
at BPF programs.
Signed-off-by: John Fastabend <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
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Add support for the BPF_F_INGRESS flag in skb redirect helper. To
do this convert skb into a scatterlist and push into ingress queue.
This is the same logic that is used in the sk_msg redirect helper
so it should feel familiar.
Signed-off-by: John Fastabend <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
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Add a set of tests to verify ingress flag in redirect helpers
works correctly with various msg sizes.
Signed-off-by: John Fastabend <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
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Add support for the BPF_F_INGRESS flag in sk_msg redirect helper.
To do this add a scatterlist ring for receiving socks to check
before calling into regular recvmsg call path. Additionally, because
the poll wakeup logic only checked the skb recv queue we need to
add a hook in TCP stack (similar to write side) so that we have
a way to wake up polling socks when a scatterlist is redirected
to that sock.
After this all that is needed is for the redirect helper to
push the scatterlist into the psock receive queue.
Signed-off-by: John Fastabend <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
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The ability to have multipath dynamically attach a scsi_dh, that the user
specified in the multipath table, was broken by commit e8f74a0f00 ("dm
mpath: eliminate need to use scsi_device_from_queue").
Restore the ability to load, and attach, a particular scsi_dh module if
one is specified (as noticed by checking m->hw_handler_name).
Fixes: e8f74a0f00 ("dm mpath: eliminate need to use scsi_device_from_queue")
Reported-by: Paul Mackerras <[email protected]>
Signed-off-by: Mike Snitzer <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for 4.17
Smaller new features to various drivers but nothing really out of
ordinary.
Major changes:
ath10k
* enable chip temperature measurement for QCA6174/QCA9377
* add firmware memory dump for QCA9984
* enable buffer STA on TDLS link for QCA6174
* support different beacon internals in multiple interface scenario
for QCA988X/QCA99X0/QCA9984/QCA4019
iwlwifi
* support for new PCI IDs for the 9000 family
* support for a new firmware API version
* support for advanced dwell and Optimized Connectivity Experience
(OCE) in scanning
btrsi
* fix kconfig dependencies
wil6210
* support multiple virtual interfaces
====================
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
We have a fair number of patches, but many of them are from the
first bullet here:
* EAPoL-over-nl80211 from Denis - this will let us fix
some long-standing issues with bridging, races with
encryption and more
* DFS offload support from the qtnfmac folks
* regulatory database changes for the new ETSI adaptivity
requirements
* various other fixes and small enhancements
====================
Signed-off-by: David S. Miller <[email protected]>
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Vq log_base is the userspace address of bitmap which has nothing to do
with IOTLB. So it needs to be validated unconditionally otherwise we
may try use 0 as log_base which may lead to pin pages that will lead
unexpected result (e.g trigger BUG_ON() in set_bit_to_user()).
Fixes: 6b1e6cc7855b0 ("vhost: new device IOTLB API")
Reported-by: [email protected]
Signed-off-by: Jason Wang <[email protected]>
Acked-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Andrew Lunn says:
====================
Add ATU/VTU statistics
Previous patches have added basic support for Address Translation Unit
and VLAN translation Unit violation interrupts. Add statistics
counters for when these occur, which can be accessed using
ethtool. Downgrade one of the particularly spammy warnings from VTU
violations to debug only, now that we have a counter for it.
====================
Signed-off-by: David S. Miller <[email protected]>
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