Commit c80794323e ("net: Fix packet reordering caused by GRO and
listified RX cooperation") had the unfortunate effect of adding
latencies in common workloads.
Before the patch, GRO packets were immediately passed to
upper stacks.
After the patch, we can accumulate quite a lot of GRO
packets (depdending on NAPI budget).
My fix is counting in napi->rx_count number of segments
instead of number of logical packets.
Fixes: c80794323e ("net: Fix packet reordering caused by GRO and listified RX cooperation")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Bisected-by: John Sperbeck <jsperbeck@google.com>
Tested-by: Jian Yang <jianyang@google.com>
Cc: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Alexander Lobakin <alobakin@pm.me>
Link: https://lore.kernel.org/r/20210204213146.4192368-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
1) Fix combination of --reap and --update in xt_recent that triggers
UAF, from Jozsef Kadlecsik.
2) Fix current year in nft_meta selftest, from Fabian Frederick.
3) Fix possible UAF in the netns destroy path of nftables.
4) Fix incorrect checksum calculation when mangling ports in flowtable,
from Sven Auhagen.
* git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf:
netfilter: flowtable: fix tcp and udp header checksum update
netfilter: nftables: fix possible UAF over chains from packet path in netns
selftests: netfilter: fix current year
netfilter: xt_recent: Fix attempt to update deleted entry
====================
Link: https://lore.kernel.org/r/20210205001727.2125-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Michael tried to enable Advanced Error Reporting through the ENETC's
Root Complex Event Collector, and the system started spitting out single
bit correctable ECC errors coming from the ENETC interfaces:
pcieport 0000:00:1f.0: AER: Multiple Corrected error received: 0000:00:00.0
fsl_enetc 0000:00:00.0: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID)
fsl_enetc 0000:00:00.0: device [1957:e100] error status/mask=00004000/00000000
fsl_enetc 0000:00:00.0: [14] CorrIntErr
fsl_enetc 0000:00:00.1: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID)
fsl_enetc 0000:00:00.1: device [1957:e100] error status/mask=00004000/00000000
fsl_enetc 0000:00:00.1: [14] CorrIntErr
Further investigating the port correctable memory error detect register
(PCMEDR) shows that these AER errors have an associated SOURCE_ID of 6
(RFS/RSS):
$ devmem 0x1f8010e10 32
0xC0000006
$ devmem 0x1f8050e10 32
0xC0000006
Discussion with the hardware design engineers reveals that on LS1028A,
the hardware does not do initialization of that RFS/RSS memory, and that
software should clear/initialize the entire table before starting to
operate. That comes as a bit of a surprise, since the driver does not do
initialization of the RFS memory. Also, the initialization of the
Receive Side Scaling is done only partially.
Even though the entire ENETC IP has a single shared flow steering
memory, the flow steering service should returns matches only for TCAM
entries that are within the range of the Station Interface that is doing
the search. Therefore, it should be sufficient for a Station Interface
to initialize all of its own entries in order to avoid any ECC errors,
and only the Station Interfaces in use should need initialization.
There are Physical Station Interfaces associated with PCIe PFs and
Virtual Station Interfaces associated with PCIe VFs. We let the PF
driver initialize the entire port's memory, which includes the RFS
entries which are going to be used by the VF.
Reported-by: Michael Walle <michael@walle.cc>
Fixes: d4fd0404c1 ("enetc: Introduce basic PF and VF ENETC ethernet drivers")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Michael Walle <michael@walle.cc>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Link: https://lore.kernel.org/r/20210204134511.2640309-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In gsi_channel_setup(), we check to see if the configuration data
contains any information about channels that are not supported by
the hardware. If one is found, we abort the setup process, but
the error code (ret) is not set in this case. Fix this bug.
Fixes: 650d160382 ("soc: qcom: ipa: the generic software interface")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20210204010655.15619-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
At the end of rxrpc_release_call(), rxrpc_cleanup_ring() is called to clear
the Rx/Tx skbuff ring, but this doesn't lock the ring whilst it's accessing
it. Unfortunately, rxrpc_resend() might be trying to retransmit a packet
concurrently with this - and whilst it does lock the ring, this isn't
protection against rxrpc_cleanup_call().
Fix this by removing the call to rxrpc_cleanup_ring() from
rxrpc_release_call(). rxrpc_cleanup_ring() will be called again anyway
from rxrpc_cleanup_call(). The earlier call is just an optimisation to
recycle skbuffs more quickly.
Alternative solutions include rxrpc_release_call() could try to cancel the
work item or wait for it to complete or rxrpc_cleanup_ring() could lock
when accessing the ring (which would require a bh lock).
This can produce a report like the following:
BUG: KASAN: use-after-free in rxrpc_send_data_packet+0x19b4/0x1e70 net/rxrpc/output.c:372
Read of size 4 at addr ffff888011606e04 by task kworker/0:0/5
...
Workqueue: krxrpcd rxrpc_process_call
Call Trace:
...
kasan_report.cold+0x79/0xd5 mm/kasan/report.c:413
rxrpc_send_data_packet+0x19b4/0x1e70 net/rxrpc/output.c:372
rxrpc_resend net/rxrpc/call_event.c:266 [inline]
rxrpc_process_call+0x1634/0x1f60 net/rxrpc/call_event.c:412
process_one_work+0x98d/0x15f0 kernel/workqueue.c:2275
...
Allocated by task 2318:
...
sock_alloc_send_pskb+0x793/0x920 net/core/sock.c:2348
rxrpc_send_data+0xb51/0x2bf0 net/rxrpc/sendmsg.c:358
rxrpc_do_sendmsg+0xc03/0x1350 net/rxrpc/sendmsg.c:744
rxrpc_sendmsg+0x420/0x630 net/rxrpc/af_rxrpc.c:560
...
Freed by task 2318:
...
kfree_skb+0x140/0x3f0 net/core/skbuff.c:704
rxrpc_free_skb+0x11d/0x150 net/rxrpc/skbuff.c:78
rxrpc_cleanup_ring net/rxrpc/call_object.c:485 [inline]
rxrpc_release_call+0x5dd/0x860 net/rxrpc/call_object.c:552
rxrpc_release_calls_on_socket+0x21c/0x300 net/rxrpc/call_object.c:579
rxrpc_release_sock net/rxrpc/af_rxrpc.c:885 [inline]
rxrpc_release+0x263/0x5a0 net/rxrpc/af_rxrpc.c:916
__sock_release+0xcd/0x280 net/socket.c:597
...
The buggy address belongs to the object at ffff888011606dc0
which belongs to the cache skbuff_head_cache of size 232
Fixes: 248f219cb8 ("rxrpc: Rewrite the data and ack handling code")
Reported-by: syzbot+174de899852504e4a74a@syzkaller.appspotmail.com
Reported-by: syzbot+3d1c772efafd3c38d007@syzkaller.appspotmail.com
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Hillf Danton <hdanton@sina.com>
Link: https://lore.kernel.org/r/161234207610.653119.5287360098400436976.stgit@warthog.procyon.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When updating the tcp or udp header checksum on port nat the function
inet_proto_csum_replace2 with the last parameter pseudohdr as true.
This leads to an error in the case that GRO is used and packets are
split up in GSO. The tcp or udp checksum of all packets is incorrect.
The error is probably masked due to the fact the most network driver
implement tcp/udp checksum offloading. It also only happens when GRO is
applied and not on single packets.
The error is most visible when using a pppoe connection which is not
triggering the tcp/udp checksum offload.
Fixes: ac2a66665e ("netfilter: add generic flow table infrastructure")
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Although hooks are released via call_rcu(), chain and rule objects are
immediately released while packets are still walking over these bits.
This patch adds the .pre_exit callback which is invoked before
synchronize_rcu() in the netns framework to stay safe.
Remove a comment which is not valid anymore since the core does not use
synchronize_net() anymore since 8c873e2199 ("netfilter: core: free
hooks with call_rcu").
Suggested-by: Florian Westphal <fw@strlen.de>
Fixes: df05ef874b ("netfilter: nf_tables: release objects on netns destruction")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
use date %Y instead of %G to read current year
Problem appeared when running lkp-tests on 01/01/2021
Fixes: 48d072c4e8 ("selftests: netfilter: add time counter check")
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
When both --reap and --update flag are specified, there's a code
path at which the entry to be updated is reaped beforehand,
which then leads to kernel crash. Reap only entries which won't be
updated.
Fixes kernel bugzilla #207773.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=207773
Reported-by: Reindl Harald <h.reindl@thelounge.net>
Fixes: 0079c5aee3 ("netfilter: xt_recent: add an entry reaper")
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Pull clang-format update from Miguel Ojeda:
"Update with the latest for_each macro list"
* tag 'clang-format-for-linux-v5.11-rc7' of git://github.com/ojeda/linux:
clang-format: Update with the latest for_each macro list
Pull dma-mapping fix from Christoph Hellwig:
"Fix a kernel crash in the new dma-mapping benchmark test (Barry Song)"
* tag 'dma-mapping-5.11-1' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: benchmark: fix kernel crash when dma_map_single fails
Pull vdpa fix from Michael Tsirkin:
"A single mlx bugfix"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vdpa/mlx5: Fix memory key MTT population
Pull networking fixes from Jakub Kicinski:
"Networking fixes for 5.11-rc7, including fixes from bpf and mac80211
trees.
Current release - regressions:
- ip_tunnel: fix mtu calculation
- mlx5: fix function calculation for page trees
Previous releases - regressions:
- vsock: fix the race conditions in multi-transport support
- neighbour: prevent a dead entry from updating gc_list
- dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add
Previous releases - always broken:
- bpf, cgroup: two copy_{from,to}_user() warn_on_once splats for BPF
cgroup getsockopt infra when user space is trying to race against
optlen, from Loris Reiff.
- bpf: add missing fput() in BPF inode storage map update helper
- udp: ipv4: manipulate network header of NATed UDP GRO fraglist
- mac80211: fix station rate table updates on assoc
- r8169: work around RTL8125 UDP HW bug
- igc: report speed and duplex as unknown when device is runtime
suspended
- rxrpc: fix deadlock around release of dst cached on udp tunnel"
* tag 'net-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (36 commits)
net: hsr: align sup_multicast_addr in struct hsr_priv to u16 boundary
net: ipa: fix two format specifier errors
net: ipa: use the right accessor in ipa_endpoint_status_skip()
net: ipa: be explicit about endianness
net: ipa: add a missing __iomem attribute
net: ipa: pass correct dma_handle to dma_free_coherent()
r8169: fix WoL on shutdown if CONFIG_DEBUG_SHIRQ is set
net/rds: restrict iovecs length for RDS_CMSG_RDMA_ARGS
net: mvpp2: TCAM entry enable should be written after SRAM data
net: lapb: Copy the skb before sending a packet
net/mlx5e: Release skb in case of failure in tc update skb
net/mlx5e: Update max_opened_tc also when channels are closed
net/mlx5: Fix leak upon failure of rule creation
net/mlx5: Fix function calculation for page trees
docs: networking: swap words in icmp_errors_use_inbound_ifaddr doc
udp: ipv4: manipulate network header of NATed UDP GRO fraglist
net: ip_tunnel: fix mtu calculation
vsock: fix the race conditions in multi-transport support
net: sched: replaced invalid qdisc tree flush helper in qdisc_replace
ibmvnic: device remove has higher precedence over reset
...
Saeed Mahameed says:
====================
mlx5 fixes 2021-02-01
Please note the first patch in this series
("Fix function calculation for page trees") is fixing a regression
due to previous fix in net which you didn't include in your previous
rc pr. So I hope this series will make it into your next rc pr,
so mlx5 won't be broken in the next rc.
* tag 'mlx5-fixes-2021-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5e: Release skb in case of failure in tc update skb
net/mlx5e: Update max_opened_tc also when channels are closed
net/mlx5: Fix leak upon failure of rule creation
net/mlx5: Fix function calculation for page trees
====================
Link: https://lore.kernel.org/r/20210202070703.617251-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Alex Elder says:
====================
net: ipa: a few bug fixes
This series fixes four minor bugs. The first two are things that
sparse points out. All four are very simple and each patch should
explain itself pretty well.
====================
Link: https://lore.kernel.org/r/20210201232609.3524451-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fix two format specifiers that used %lu for a size_t in "ipa_mem.c".
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When extracting the destination endpoint ID from the status in
ipa_endpoint_status_skip(), u32_get_bits() is used. This happens to
work, but it's wrong: the structure field is only 8 bits wide
instead of 32.
Fix this by using u8_get_bits() to get the destination endpoint ID.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Sparse warns that the assignment of the metadata mask for a QMAP
endpoint in ipa_endpoint_init_hdr_metadata_mask() is a bad
assignment. We know we want the mask value to be big endian, even
though the value we write is in host byte order. Use a __force
tag to indicate we really mean it.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The virt local variable in gsi_channel_state() does not have an
__iomem attribute but should. Fix this.
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Amy Parker <enbyamy@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
So far phy_disconnect() is called before free_irq(). If CONFIG_DEBUG_SHIRQ
is set and interrupt is shared, then free_irq() creates an "artificial"
interrupt by calling the interrupt handler. The "link change" flag is set
in the interrupt status register, causing phylib to eventually call
phy_suspend(). Because the net_device is detached from the PHY already,
the PHY driver can't recognize that WoL is configured and powers down the
PHY.
Fixes: f1e911d5d0 ("r8169: add basic phylib support")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/fe732c2c-a473-9088-3974-df83cfbd6efd@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
syzbot found WARNING in rds_rdma_extra_size [1] when RDS_CMSG_RDMA_ARGS
control message is passed with user-controlled
0x40001 bytes of args->nr_local, causing order >= MAX_ORDER condition.
The exact value 0x40001 can be checked with UIO_MAXIOV which is 0x400.
So for kcalloc() 0x400 iovecs with sizeof(struct rds_iovec) = 0x10
is the closest limit, with 0x10 leftover.
Same condition is currently done in rds_cmsg_rdma_args().
[1] WARNING: mm/page_alloc.c:5011
[..]
Call Trace:
alloc_pages_current+0x18c/0x2a0 mm/mempolicy.c:2267
alloc_pages include/linux/gfp.h:547 [inline]
kmalloc_order+0x2e/0xb0 mm/slab_common.c:837
kmalloc_order_trace+0x14/0x120 mm/slab_common.c:853
kmalloc_array include/linux/slab.h:592 [inline]
kcalloc include/linux/slab.h:621 [inline]
rds_rdma_extra_size+0xb2/0x3b0 net/rds/rdma.c:568
rds_rm_size net/rds/send.c:928 [inline]
Reported-by: syzbot+1bd2b07f93745fa38425@syzkaller.appspotmail.com
Signed-off-by: Sabyrzhan Tasbolatov <snovitoll@gmail.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Link: https://lore.kernel.org/r/20210201203233.1324704-1-snovitoll@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When sending a packet, we will prepend it with an LAPB header.
This modifies the shared parts of a cloned skb, so we should copy the
skb rather than just clone it, before we prepend the header.
In "Documentation/networking/driver.rst" (the 2nd point), it states
that drivers shouldn't modify the shared parts of a cloned skb when
transmitting.
The "dev_queue_xmit_nit" function in "net/core/dev.c", which is called
when an skb is being sent, clones the skb and sents the clone to
AF_PACKET sockets. Because the LAPB drivers first remove a 1-byte
pseudo-header before handing over the skb to us, if we don't copy the
skb before prepending the LAPB header, the first byte of the packets
received on AF_PACKET sockets can be corrupted.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Acked-by: Martin Schiller <ms@dev.tdt.de>
Link: https://lore.kernel.org/r/20210201055706.415842-1-xie.he.0141@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Johannes Berg says:
====================
Two fixes:
- station rate tables were not updated correctly
after association, leading to bad configuration
- rtl8723bs (staging) was initializing data incorrectly
after the previous fix and needed to move the init
later
* tag 'mac80211-for-net-2021-02-02' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211:
staging: rtl8723bs: Move wiphy setup to after reading the regulatory settings from the chip
mac80211: fix station rate table updates on assoc
====================
Link: https://lore.kernel.org/r/20210202143505.37610-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In case of failure in tc update skb the packet is dropped
without freeing the skb.
Fixed by freeing the skb in case failure in tc update skb.
Fixes: d6d2778286 ("net/mlx5: E-Switch, Restore chain id on miss")
Fixes: c756909722 ("net/mlx5e: Add tc chains offload support for nic flows")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
max_opened_tc is used for stats, so that potentially non-zero stats
won't disappear when num_tc decreases. However, mlx5e_setup_tc_mqprio
fails to update it in the flow where channels are closed.
This commit fixes it. The new value of priv->channels.params.num_tc is
always checked on exit. In case of errors it will just be the old value,
and in case of success it will be the updated value.
Fixes: 05909babce ("net/mlx5e: Avoid reset netdev stats on configuration changes")
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
When creation of a new rule that requires allocation of an FTE fails,
need to call to tree_put_node on the FTE in order to release its'
resource.
Fixes: cefc23554f ("net/mlx5: Fix FTE cleanup")
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Alaa Hleihel <alaa@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
The function calculation always results in a value of 0. This works
generally, but when the release all pages feature is enabled it will
result in crashes.
Fixes: 0aa128475d ("net/mlx5: Maintain separate page trees for ECPF and PF functions")
Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2021-02-01
This series contains updates to igc and i40e drivers.
Kai-Heng Feng fixes igc to report unknown speed and duplex during suspend
as an attempted read will cause errors.
Kevin Lo sets the default value to -IGC_ERR_NVM instead of success for
writing shadow RAM as this could miss a timeout. Also propagates the return
value for Flow Control configuration to properly pass on errors for igc.
Aleksandr reverts commit 2ad1274fa3 ("i40e: don't report link up for a VF
who hasn't enabled queues") as this can cause link flapping.
* '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
i40e: Revert "i40e: don't report link up for a VF who hasn't enabled queues"
igc: check return value of ret_val in igc_config_fc_after_link_up
igc: set the default return value to -IGC_ERR_NVM in igc_write_nvm_srwr
igc: Report speed and duplex as unknown when device is runtime suspended
====================
Link: https://lore.kernel.org/r/20210201214618.852831-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
UDP/IP header of UDP GROed frag_skbs are not updated even after NAT
forwarding. Only the header of head_skb from ip_finish_output_gso ->
skb_gso_segment is updated but following frag_skbs are not updated.
A call path skb_mac_gso_segment -> inet_gso_segment ->
udp4_ufo_fragment -> __udp_gso_segment -> __udp_gso_segment_list
does not try to update UDP/IP header of the segment list but copy
only the MAC header.
Update port, addr and check of each skb of the segment list in
__udp_gso_segment_list. It covers both SNAT and DNAT.
Fixes: 9fd1ff5d2a (udp: Support UDP fraglist GRO/GSO.)
Signed-off-by: Dongseok Yi <dseok.yi@samsung.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Link: https://lore.kernel.org/r/1611962007-80092-1-git-send-email-dseok.yi@samsung.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There are multiple similar bugs implicitly introduced by the
commit c0cfa2d8a7 ("vsock: add multi-transports support") and
commit 6a2c096210 ("vsock: prevent transport modules unloading").
The bug pattern:
[1] vsock_sock.transport pointer is copied to a local variable,
[2] lock_sock() is called,
[3] the local variable is used.
VSOCK multi-transport support introduced the race condition:
vsock_sock.transport value may change between [1] and [2].
Let's copy vsock_sock.transport pointer to local variables after
the lock_sock() call.
Fixes: c0cfa2d8a7 ("vsock: add multi-transports support")
Signed-off-by: Alexander Popov <alex.popov@linux.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Link: https://lore.kernel.org/r/20210201084719.2257066-1-alex.popov@linux.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This reverts commit 2ad1274fa3
VF queues were not brought up when PF was brought up after being
downed if the VF driver disabled VFs queues during PF down.
This could happen in some older or external VF driver implementations.
The problem was that PF driver used vf->queues_enabled as a condition
to decide what link-state it would send out which caused the issue.
Remove the check for vf->queues_enabled in the VF link notify.
Now VF will always be notified of the current link status.
Also remove the queues_enabled member from i40e_vf structure as it is
not used anymore. Otherwise VNF implementation was broken and caused
a link flap.
The original commit was a workaround to avoid breaking existing VFs though
it's really a fault of the VF code not the PF. The commit should be safe to
revert as all of the VFs we know of have been fixed. Also, since we now
know there is a related bug in the workaround, removing it is preferred.
Fixes: 2ad1274fa3 ("i40e: don't report link up for a VF who hasn't enabled")
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Pull media fixes from Mauro Carvalho Chehab:
"The rockship rkisp1 driver will be promoted from staging in 5.11.
While not too late, do a few uAPI changes which are needed to better
support its functionalities"
* tag 'media/v5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: rockchip: rkisp1: extend uapi array sizes
media: rockchip: rkisp1: carry ip version information
media: rockchip: rkisp1: reduce number of histogram grid elements in uapi
media: rkisp1: stats: mask the hist_bins values
media: rkisp1: stats: remove a wrong cast to u8
media: rkisp1: uapi: change hist_bins array type from __u16 to __u32
