John Fastabend says:
====================
In the original sockmap implementation we got away with using an
array similar to devmap. However, unlike devmap where an ifindex
has a nice 1:1 function into the map we have found some use cases
with sockets that need to be referenced using longer keys.
This series adds support for a sockhash map reusing as much of
the sockmap code as possible. I made the decision to add sockhash
specific helpers vs trying to generalize the existing helpers
because (a) they have sockmap in the name and (b) the keys are
different types. I prefer to be explicit here rather than play
type games or do something else tricky.
To test this we duplicate all the sockmap testing except swap out
the sockmap with a sockhash.
v2: fix file stats and add v2 tag
v3: move tool updates into test patch, move bpftool updates into
its own patch, and fixup the test patch stats to catch the
renamed file and provide only diffs ± on that.
v4: Add documentation to UAPI bpf.h
v5: Add documentation to tools UAPI bpf.h
v6: 'git add' test_sockhash_kern.c which was previously missing
but was not causing issues because of typo in test script,
noticed by Daniel. After this the git format-patch -M option
no longer tracks the rename of the test_sockmap_kern files for
some reason. I guess the diff has exceeded some threshold.
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This adds the SOCKHASH map type to bpftools so that we get correct
pretty printing.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This runs existing SOCKMAP tests with SOCKHASH map type. To do this
we push programs into include file and build two BPF programs. One
for SOCKHASH and one for SOCKMAP.
We then run the entire test suite with each type.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
One should use tracing_path_mount() instead, so more things get done
lazily instead of at every 'perf' tool call startup.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-fci4yll35idd9yuslp67vqc2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Its only used in the file it is defined, so just make it static.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-p5x29u6mq2ml3mtnbg9844ad@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
If two listeners are created with different IP's but
same port, the second rdma_listen fails due to a
duplicate port entry being added from the CQP add
APBVT OP. commit f16dc0aa5e ("i40iw: Add support
for port reuse on active side connections") does not
account for listener side port reuse.
Check for duplicate port before invoking the CQP command
to add APBVT entry and delete the entry only if the port
is not in use. Additionally, consolidate all port-reuse
logic into i40iw_manage_apbvt.
Fixes: f16dc0aa5e ("i40iw: Add support for port reuse on active side connections")
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Remove dead links, make spacing consistent, and note that the family was
acquired by Synaptics in 2017.
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
We check what perf_config__init() does at each perf_config() call,
namely if the static perf_config instance was created, so instead of
bailing out in that case, try to allocate it, bailing if it fails.
Now to get the perf_config() call out of the start of perf's main()
function, doing it also lazily.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Taeung Song <treeze.taeung@gmail.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-4bo45k6ivsmbxpfpdte4orsg@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Avoid reporting an error when RTC_NVMEM is not selected.
Reported-by: kernel test robot <xiaolong.ye@intel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
For T6, clip table is separated from main TCAM. So, update LE-TCAM
collection logic to collect clip table TCAM as well. IPv6 takes
4 entries in clip table TCAM compared to 2 entries in main TCAM.
Also, in case of errors, keep LE-TCAM collected so far and set the
status to partial dump.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We need to make sure we don't just set the size of the bdev to 0 while
it's being used by a file system. We have the appropriate check in
nbd_bdev_reset, simply use that helper instead.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
bd_invalidated is kind of a pain wrt partitions as it really only
triggers the partition rescan if it is set after bd_ops->open() runs, so
setting it when we reset the device isn't useful. We also sporadically
would still have partitions left over in some disconnect cases, so fix
this by always setting bd_invalidated on open if there's no
configuration or if we've had a disconnect action happen, that way the
partition table gets invalidated and rescanned properly.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This is what the ioctl based nbd disconnect does as well. Without this
the device will just sit there and wait for the connection to go away
(or IO to occur) before the device gets torn down. Instead clear
everything up on our end so the configuration goes away as quickly as
possible.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When we stopped relying on the bdev everywhere I broke updating the
block device size on the fly, which ceph relies on. We can't just do
set_capacity, we also have to do bd_set_size so things like parted will
notice the device size change.
Fixes: 29eaadc ("nbd: stop using the bdev everywhere")
cc: stable@vger.kernel.org
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
I messed up changing the size of an NBD device while it was connected by
not actually updating the device or doing the uevent. Fix this by
updating everything if we're connected and we change the size.
cc: stable@vger.kernel.org
Fixes: 639812a ("nbd: don't set the device size until we're connected")
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This fixes a use after free bug, we shouldn't be doing disk->queue right
after we do del_gendisk(disk). Save the queue and do the cleanup after
the del_gendisk.
Fixes: c6a4759ea0 ("nbd: add device refcounting")
cc: stable@vger.kernel.org
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
After commit b196d88aba ("tun: fix use after free for ptr_ring") we
need clean up tx ring during release(). But unfortunately, it tries to
do the cleanup blindly after socket were destroyed which will lead
another use-after-free. Fix this by doing the cleanup before dropping
the last reference of the socket in __tun_detach().
Reported-by: Andrei Vagin <avagin@virtuozzo.com>
Acked-by: Andrei Vagin <avagin@virtuozzo.com>
Fixes: b196d88aba ("tun: fix use after free for ptr_ring")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Kalderon says:
====================
qed: LL2 fixes
This series fixes some issues in ll2 related to synchronization
and resource freeing
====================
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>
Stress on qedi/qedr load unload lead to list_del corruption.
This is due to ll2 connection terminate freeing resources without
verifying that no more ll2 processing will occur.
This patch unregisters the ll2 status block before terminating
the connection to assure this race does not occur.
Fixes: 1d6cff4fca ("qed: Add iSCSI out of order packet handling")
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>
The ll2 flows of flushing the txq/rxq need to be synchronized with the
regular fp processing. Caused list corruption during load/unload stress
tests.
Fixes: 0a7fb11c23 ("qed: Add Light L2 support")
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>
Driver should free all pending isles once it gets a FLUSH cqe from FW.
Part of iSCSI out of order flow.
Fixes: 1d6cff4fca ("qed: Add iSCSI out of order packet handling")
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>
Michal Kalderon says:
====================
qed: LL2 fixes
This series fixes some issues in ll2 related to synchronization
and resource freeing
====================
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Stress on qedi/qedr load unload lead to list_del corruption.
This is due to ll2 connection terminate freeing resources without
verifying that no more ll2 processing will occur.
This patch unregisters the ll2 status block before terminating
the connection to assure this race does not occur.
Fixes: 1d6cff4fca ("qed: Add iSCSI out of order packet handling")
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>
The ll2 flows of flushing the txq/rxq need to be synchronized with the
regular fp processing. Caused list corruption during load/unload stress
tests.
Fixes: 0a7fb11c23 ("qed: Add Light L2 support")
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>
Driver should free all pending isles once it gets a FLUSH cqe from FW.
Part of iSCSI out of order flow.
Fixes: 1d6cff4fca ("qed: Add iSCSI out of order packet handling")
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>
clk_disable_unprepare() already checks that the clock pointer is valid.
No need to test it before calling it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
clk_disable_unprepare() already checks that the clock pointer is valid.
No need to test it before calling it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Similarly to what was done with commit a52956dfc5 ("net sched actions:
fix refcnt leak in skbmod"), fix the error path of tcf_vlan_init() to avoid
refcnt leaks when wrong value of TCA_VLAN_PUSH_VLAN_PROTOCOL is given.
Fixes: 5026c9b1ba ("net sched: vlan action fix late binding")
CC: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
I've been missing stuff because it's been going into my work email which
is a black hole. Update to the email I actually use so I stop missing
patches and bug reports.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The configuration settings for RBTX4927 were accidentally removed,
leading to a silently broken network interface.
Re-add the missing settings to fix this.
Fixes: 8eb97ff5a4 ("net: 8390: remove m32r specific bits")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch introduces ops structure for sgmii, This by ensures that
we do not need dummy functions in case of emulation platforms.
Signed-off-by: Hemanth Puranik <hpuranik@codeaurora.org>
Acked-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Subash Abhinov Kasiviswanathan says:
====================
net: qualcomm: rmnet: Updates 2018-05-14
Patch 1 adds tx_drops counter to more places.
Patch 2 adds ethtool private stats support to make it easy to debug
the checksum offload path.
Patch 3 is a cleanup in command packet processing path.
v1->v2: Fix the incorrect if / else statement in
rmnet_map_checksum_downlink_packet() and define rmnet_ethtool_ops
as static as mentioned by kbuild test robot.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The command packet size is already checked once in
rmnet_map_deaggregate() for the header, packet and trailer size, so
this additional check is not needed.
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add ethtool private stats handler to debug the handling of packets
with checksum offload header / trailer. This allows to keep track of
the number of packets for which hardware computes the checksum and
counts and reasons where checksum computation was skipped in hardware
and was done in the network stack.
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Packets in transmit path could potentially be dropped if there were
errors while adding the MAP header or the checksum header.
Increment the tx_drops stats in these cases.
Additionally, refactor the code to free the packet and increment
the tx_drops stat under a single label.
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
of: mdio: Fall back to mdiobus_register() with NULL device_node
This patch series updates of_mdiobus_register() such that when the device_node
argument is NULL, it calls mdiobus_register() directly. This is consistent with
the behavior of of_mdiobus_register() when CONFIG_OF=n.
I only converted the most obvious drivers, there are others that have a much
less obvious behavior and specifically attempt to deal with CONFIG_ACPI.
Changes in v2:
- fixed build error in davincin_mdio.c (Grygorii)
- reworked first patch a bit: commit message, subject and removed useless
code comment
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
A number of drivers have the following pattern:
if (np)
of_mdiobus_register()
else
mdiobus_register()
which the implementation of of_mdiobus_register() now takes care of.
Remove that pattern in drivers that strictly adhere to it.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Fugang Duan <fugang.duan@nxp.com>
Reviewed-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the device_node specified is NULL, fall back to mdiobus_register().
We have a number of drivers having a similar pattern which is:
if (np)
of_mdiobus_register()
else
mdiobus_register()
so incorporate that behavior within the core of_mdiobus_register()
function. This is also consistent with the stub version that we defined
when CONFIG_OF=n.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, for an invalid swap file, we print the same error message
regardless of the reason. This isn't very useful for an admin, who will
likely want to know why exactly they can't use their swap file. So,
let's add specific error messages for each reason, and also move the
bdev check after the flags checks, since the latter are more
fundamental.
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This fixes klockworks warnings: Pointer 'dev' returned from call to
function 'bus_find_device' at line 179 may be NULL and will be dereferenced
at line 181.
cpsw-phy-sel.c:179: 'dev' is assigned the return value from function 'bus_find_device'.
bus.c:342: 'bus_find_device' explicitly returns a NULL value.
cpsw-phy-sel.c:181: 'dev' is dereferenced by passing argument 1 to function 'dev_get_drvdata'.
device.h:1024: 'dev' is passed to function 'dev_get_drvdata'.
device.h:1026: 'dev' is explicitly dereferenced.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
[nsekhar@ti.com: add an error message, fix return path]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
net: dsa: bcm_sf2: CFP fixes
This patch series fixes a number of usability issues with the SF2 Compact Field
Processor code:
- we would not be properly bound checking the location when we let the kernel
automatically place rules with RX_CLS_LOC_ANY
- when using IPv6 rules and user space specifies a location identifier we
would be off by one in what the chain ID (within the Broadcom tag) indicates
- it would be possible to delete one of the two slices of an IPv6 while leaving
the other one programming leading to various problems
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
It was possible to delete only one half of an IPv6, which would leave
the second half still programmed and possibly in use. Instead of
checking for the unused bitmap, we need to check the unique bitmap, and
refuse any deletion that does not match that criteria. We also need to
move that check from bcm_sf2_cfp_rule_del_one() into its caller:
bcm_sf2_cfp_rule_del() otherwise we would not be able to delete second
halves anymore that would not pass the first test.
Fixes: ba0696c22e ("net: dsa: bcm_sf2: Add support for IPv6 CFP rules")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We had several issues that would make the programming of IPv6 rules both
inconsistent and error prone:
- the chain ID that we would be asking the hardware to put in the
packet's Broadcom tag would be off by one, it would return one of the
two indexes, but not the one user-space specified
- when an user specified a particular location to insert a CFP rule at,
we would not be returning the same index, which would be confusing if
nothing else
- finally, like IPv4, it would be possible to overflow the last entry by
re-programming it
Fix this by swapping the usage of rule_index[0] and rule_index[1] where
relevant in order to return a consistent and correct user-space
experience.
Fixes: ba0696c22e ("net: dsa: bcm_sf2: Add support for IPv6 CFP rules")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When we let the kernel pick up a rule location with RX_CLS_LOC_ANY, we
would be able to overwrite the last rules because of a number of issues.
The IPv4 code path would not be checking that rule_index is within
bounds, and it would also only be allowed to pick up rules from range
0..126 instead of the full 0..127 range. This would lead us to allow
overwriting the last rule when we let the kernel pick-up the location.
Fixes: 3306145866 ("net: dsa: bcm_sf2: Move IPv4 CFP processing to specific functions")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch enables the Armada thermal driver to support thermal
management on Marvell EBU Armada SoCs (7K,8K).
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
retire_capture_urb() may print warning messages when the given URB
doesn't align, and this may flood the system log easily.
Put the rate limit to the message for avoiding it.
Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1093485
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This reverts commit 1386c36b30.
We don't want to encourage drivers to not report carrier status
correctly, therefore remove this commit.
Signed-off-by: Debabrata Banerjee <dbanerje@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Added extra test cases for different control actions (reclassify, pipe
etc.), cookies, max values & exceeding maximum, and replace existing
actions unit tests.
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
vsprintf is incorrect. Instead of adding the read memory barrier
into vsprintf() which will cause a slight degradation to a commonly
used function in the kernel just to solve a very unlikely race
condition that can only happen at boot up, change the code from
using a variable branch to a static_branch. Not only does this solve
the race condition, it actually will improve the performance of
vsprintf() by removing the conditional branch that is only needed
at boot.
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Merge tag 'trace-v4.17-rc5-vsprintf' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull memory barrier for from Steven Rostedt:
"The memory barrier usage in updating the random ptr hash for %p in
vsprintf is incorrect.
Instead of adding the read memory barrier into vsprintf() which will
cause a slight degradation to a commonly used function in the kernel
just to solve a very unlikely race condition that can only happen at
boot up, change the code from using a variable branch to a
static_branch.
Not only does this solve the race condition, it actually will improve
the performance of vsprintf() by removing the conditional branch that
is only needed at boot"
* tag 'trace-v4.17-rc5-vsprintf' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
vsprintf: Replace memory barrier with static_key for random_ptr_key update
