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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Remove unnecessary use of enable/disable callback notifications
and the incorrect more space available check.
The virtio_transport_tx_work handles when the TX virtqueue
has more buffers available.
Signed-off-by: Gerard Garcia <ggarcia@deic.uab.cat>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal updates from Zhang Rui:
- Fix a race condition when updating cooling device, which may lead to
a situation where a thermal governor never updates the cooling
device. From Michele Di Giorgio.
- Fix a zero division error when disabling the forced idle injection
from the intel powerclamp. From Petr Mladek.
- Add suspend/resume callback for intel_pch_thermal thermal driver.
From Srinivas Pandruvada.
- Another two fixes for clocking cooling driver and hwmon sysfs I/F.
From Michele Di Giorgio and Kuninori Morimoto.
[ Hmm. That suspend/resume callback for intel_pch_thermal doesn't look
like a fix, but I'm letting it slide.. - Linus ]
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: clock_cooling: Fix missing mutex_init()
thermal: hwmon: EXPORT_SYMBOL_GPL for thermal hwmon sysfs
thermal: fix race condition when updating cooling device
thermal/powerclamp: Prevent division by zero when counting interval
thermal: intel_pch_thermal: Add suspend/resume callback
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Recent changes to ptr_ring broke the ringtest
which lacks a likely() stub. Fix it up.
Fixes: 982fb490c298896d15e9323a882f34a57c11ff56
("ptr_ring: support zero length ring")
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu fix from Greg Ungerer:
"This contains only a single fix for a register corruption problem on
certain types of m68k flat format binaries"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: fix user a5 register being overwritten
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull h8300 and unicore32 architecture fixes from Guenter Roeck:
"Two patches to fix h8300 and unicore32 builds.
unicore32 builds have been broken since v4.6. The fix has been
available in -next since March of this year.
h8300 builds have been broken since the last commit window. The fix
has been available in -next since June of this year"
* tag 'fixes-for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
h8300: Add missing include file to asm/io.h
unicore32: mm: Add missing parameter to arch_vma_access_permitted
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- support for nr_cpus= command line argument (maxcpus was previously
changed to allow secondary CPUs to be hot-plugged)
- ARM PMU interrupt handling fix
- fix potential TLB conflict in the hibernate code
- improved handling of EL1 instruction aborts (better error reporting)
- removal of useless jprobes code for stack saving/restoring
- defconfig updates
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: defconfig: enable CONFIG_LOCALVERSION_AUTO
arm64: defconfig: add options for virtualization and containers
arm64: hibernate: handle allocation failures
arm64: hibernate: avoid potential TLB conflict
arm64: Handle el1 synchronous instruction aborts cleanly
arm64: Remove stack duplicating code from jprobes
drivers/perf: arm-pmu: Fix handling of SPI lacking "interrupt-affinity" property
drivers/perf: arm-pmu: convert arm_pmu_mutex to spinlock
arm64: Support hard limit of cpu count by nr_cpus
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In the case where phydev->interrupts is not PHY_INTERRUPT_ENABLED
function vsc85xx_ack_interrupt is returning an uninitialized
garbage value. Fix this by initializing rc to zero.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The idea for type_check in dev_get_nest_level() was to count the number
of nested devices of the same type (currently, only macvlan or vlan
devices).
This prevented the false positive lockdep warning on configurations such
as:
eth0 <--- macvlan0 <--- vlan0 <--- macvlan1
However, this doesn't prevent a warning on a configuration such as:
eth0 <--- macvlan0 <--- vlan0
eth1 <--- vlan1 <--- macvlan1
In this case, all the locks end up with a nesting subclass of 1, so
lockdep thinks that there is still a deadlock:
- in the first case we have (macvlan_netdev_addr_lock_key, 1) and then
take (vlan_netdev_xmit_lock_key, 1)
- in the second case, we have (vlan_netdev_xmit_lock_key, 1) and then
take (macvlan_netdev_addr_lock_key, 1)
By removing the linktype check in dev_get_nest_level() and always
incrementing the nesting depth, lockdep considers this configuration
valid.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, trying to setup a vlan over a macsec device, or other
combinations of devices, triggers a lockdep warning.
Use netdev_lockdep_set_classes and ndo_get_lock_subclass, similar to
what macvlan does.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch respell some word badly spelled.
- Invidate instead of Invalidate
- proble instead of probe
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If IPv6 is disabled when the option is set to keep IPv6
addresses on link down, userspace is unaware of this as
there is no such indication via netlink. The solution is to
remove the IPv6 addresses in this case, which results in
netlink messages indicating removal of addresses in the
usual manner. This fix also makes the behavior consistent
with the case of having IPv6 disabled first, which stops
IPv6 addresses from being added.
Fixes: f1705ec197e7 ("net: ipv6: Make address flushing on ifdown optional")
Signed-off-by: Mike Manning <mmanning@brocade.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
Not much for -next so far, but here it goes:
* send more nl80211 events for interfaces
* remove useless network/transport offset mangling code
* validate beacon intervals identically for all interface types
* use driver rate estimates for mesh
* fix a compiler type/signedness warning
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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sctp_transport_seq_start() does not currently clear iter->start_fail on
success, but relies on it being zero when it is allocated (by
seq_open_net()).
This can be a problem in the following sequence:
open() // allocates iter (and implicitly sets iter->start_fail = 0)
read()
- iter->start() // fails and sets iter->start_fail = 1
- iter->stop() // doesn't call sctp_transport_walk_stop() (correct)
read() again
- iter->start() // succeeds, but doesn't change iter->start_fail
- iter->stop() // doesn't call sctp_transport_walk_stop() (wrong)
We should initialize sctp_ht_iter::start_fail to zero if ->start()
succeeds, otherwise it's possible that we leave an old value of 1 there,
which will cause ->stop() to not call sctp_transport_walk_stop(), which
causes all sorts of problems like not calling rcu_read_unlock() (and
preempt_enable()), eventually leading to more warnings like this:
BUG: sleeping function called from invalid context at mm/slab.h:388
in_atomic(): 0, irqs_disabled(): 0, pid: 16551, name: trinity-c2
Preemption disabled at:[<ffffffff819bceb6>] rhashtable_walk_start+0x46/0x150
[<ffffffff81149abb>] preempt_count_add+0x1fb/0x280
[<ffffffff83295892>] _raw_spin_lock+0x12/0x40
[<ffffffff819bceb6>] rhashtable_walk_start+0x46/0x150
[<ffffffff82ec665f>] sctp_transport_walk_start+0x2f/0x60
[<ffffffff82edda1d>] sctp_transport_seq_start+0x4d/0x150
[<ffffffff81439e50>] traverse+0x170/0x850
[<ffffffff8143aeec>] seq_read+0x7cc/0x1180
[<ffffffff814f996c>] proc_reg_read+0xbc/0x180
[<ffffffff813d0384>] do_loop_readv_writev+0x134/0x210
[<ffffffff813d2a95>] do_readv_writev+0x565/0x660
[<ffffffff813d6857>] vfs_readv+0x67/0xa0
[<ffffffff813d6c16>] do_preadv+0x126/0x170
[<ffffffff813d710c>] SyS_preadv+0xc/0x10
[<ffffffff8100334c>] do_syscall_64+0x19c/0x410
[<ffffffff83296225>] return_from_SYSCALL_64+0x0/0x6a
[<ffffffffffffffff>] 0xffffffffffffffff
Notice that this is a subtly different stacktrace from the one in commit
5fc382d875 ("net/sctp: terminate rhashtable walk correctly").
Cc: Xin Long <lucien.xin@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Acked-By: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If iriap_register_lsap() fails to allocate memory, self->lsap is
set to NULL. However, none of the callers handle the failure and
irlmp_connect_request() will happily dereference it:
iriap_register_lsap: Unable to allocated LSAP!
================================================================================
UBSAN: Undefined behaviour in net/irda/irlmp.c:378:2
member access within null pointer of type 'struct lsap_cb'
CPU: 1 PID: 15403 Comm: trinity-c0 Not tainted 4.8.0-rc1+ #81
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
04/01/2014
0000000000000000 ffff88010c7e78a8 ffffffff82344f40 0000000041b58ab3
ffffffff84f98000 ffffffff82344e94 ffff88010c7e78d0 ffff88010c7e7880
ffff88010630ad00 ffffffff84a5fae0 ffffffff84d3f5c0 000000000000017a
Call Trace:
[<ffffffff82344f40>] dump_stack+0xac/0xfc
[<ffffffff8242f5a8>] ubsan_epilogue+0xd/0x8a
[<ffffffff824302bf>] __ubsan_handle_type_mismatch+0x157/0x411
[<ffffffff83b7bdbc>] irlmp_connect_request+0x7ac/0x970
[<ffffffff83b77cc0>] iriap_connect_request+0xa0/0x160
[<ffffffff83b77f48>] state_s_disconnect+0x88/0xd0
[<ffffffff83b78904>] iriap_do_client_event+0x94/0x120
[<ffffffff83b77710>] iriap_getvaluebyclass_request+0x3e0/0x6d0
[<ffffffff83ba6ebb>] irda_find_lsap_sel+0x1eb/0x630
[<ffffffff83ba90c8>] irda_connect+0x828/0x12d0
[<ffffffff833c0dfb>] SYSC_connect+0x22b/0x340
[<ffffffff833c7e09>] SyS_connect+0x9/0x10
[<ffffffff81007bd3>] do_syscall_64+0x1b3/0x4b0
[<ffffffff845f946a>] entry_SYSCALL64_slow_path+0x25/0x25
================================================================================
The bug seems to have been around since forever.
There's more problems with missing error checks in iriap_init() (and
indeed all of irda_init()), but that's a bigger problem that needs
very careful review and testing. This patch will fix the most serious
bug (as it's easily reached from unprivileged userspace).
I have tested my patch with a reproducer.
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pass the correct type __wsum to csum_sub() and csum_add(). This doesn't
really change anything since __wsum really *is* __be32, but removes the
address space warnings from sparse.
Cc: Eric Dumazet <edumazet@google.com>
Fixes: 34ae6a1aa054 ("ipv6: update skb->csum when CE mark is propagated")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix the bpf_try_make_writable() helper and all call sites we have in BPF,
it's currently defect with regards to skbs when the write_len spans into
non-linear parts, no matter if cloned or not.
There are multiple issues at once. First, using skb_store_bits() is not
correct since even if we have a cloned skb, page frags can still be shared.
To really make them private, we need to pull them in via __pskb_pull_tail()
first, which also gets us a private head via pskb_expand_head() implicitly.
This is for helpers like bpf_skb_store_bytes(), bpf_l3_csum_replace(),
bpf_l4_csum_replace(). Really, the only thing reasonable and working here
is to call skb_ensure_writable() before any write operation. Meaning, via
pskb_may_pull() it makes sure that parts we want to access are pulled in and
if not does so plus unclones the skb implicitly. If our write_len still fits
the headlen and we're cloned and our header of the clone is not writable,
then we need to make a private copy via pskb_expand_head(). skb_store_bits()
is a bit misleading and only safe to store into non-linear data in different
contexts such as 357b40a18b04 ("[IPV6]: IPV6_CHECKSUM socket option can
corrupt kernel memory").
For above BPF helper functions, it means after fixed bpf_try_make_writable(),
we've pulled in enough, so that we operate always based on skb->data. Thus,
the call to skb_header_pointer() and skb_store_bits() becomes superfluous.
In bpf_skb_store_bytes(), the len check is unnecessary too since it can
only pass in maximum of BPF stack size, so adding offset is guaranteed to
never overflow. Also bpf_l3/4_csum_replace() helpers must test for proper
offset alignment since they use __sum16 pointer for writing resulting csum.
The remaining helpers that change skb data not discussed here yet are
bpf_skb_vlan_push(), bpf_skb_vlan_pop() and bpf_skb_change_proto(). The
vlan helpers internally call either skb_ensure_writable() (pop case) and
skb_cow_head() (push case, for head expansion), respectively. Similarly,
bpf_skb_proto_xlat() takes care to not mangle page frags.
Fixes: 608cd71a9c7c ("tc: bpf: generalize pedit action")
Fixes: 91bc4822c3d6 ("tc: bpf: add checksum helpers")
Fixes: 3697649ff29e ("bpf: try harder on clones when writing into skb")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds the missing of_node_put() after finishing the usage
of of_parse_phandle() or of_node_get() used by fixed_phy.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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To fix runtime warning with lockdep is enabled due that u64_stats_sync
is not initialized well, so add it.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, if calipso_genopt fails then the error exit path
does not free the ipv6_opt_hdr new causing a memory leak. Fix
this by kfree'ing new on the error exit path.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Wolfram Sang says:
====================
net: don't print error when allocating urb fails
This per-subsystem series is part of a tree wide cleanup. usb_alloc_urb() uses
kmalloc which already prints enough information on failure. So, let's simply
remove those "allocation failed" messages from drivers like we did already for
other -ENOMEM cases. gkh acked this approach when we talked about it at LCJ in
Tokyo a few weeks ago.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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fails
kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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fails
kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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allocating urb fails
kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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allocating urb fails
kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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allocating urb fails
kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Acked-by: Woojung Huh <woojung.huh@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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urb fails
kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are a couple of leftover symbol conflicts caused by hashtable.h
being included by netdevice.h; those were not caught as build failure
(they're "only" a warning, but in fact real bugs). Fix those up.
Fixes: e87a8f24c ("net: resolve symbol conflicts with generic hashtable.h")
Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Sunil Goutham says:
====================
net: thunderx: Support for newer chips and miscellaneous patches
This patch series adds support for VNIC on 81xx and 83xx SOCs.
81xx/83xx is different from 88xx in terms of capabilities and new type
of interfaces supported (eg: QSGMII, RGMII) and have DLMs instead of
QLMs which allows single BGX to have interfaces of different LMAC types.
Also included some patches which are common for all 88xx/81xx/83xx
SOCs like using netdev's name while registering irqs, reset receive
queue stats and some changes to use standard API for split buffer Rx
packets, generating RSS key e.t.c
PS: Most of the patches were submitted earlier under different series but
for some reason were not picked up by patchwork. Since new patches have been
added in the meantime, resubmitting all as a new patchset.
Changes from v1:
- Incorporated Yuval Mintz's suggestion to use generic API to set minimum
queue count i.e by using netif_get_num_default_rss_queues().
- Resolved a compilation issue reported by test robot while compiling
patch 'Add support for 16 LMACs of 83xx'
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Setting BGXX_SPUX_MISC_CONTROL::RX_PACKET_DIS is not needed as
packet reception is anyway disabled by BGXX_CMRX_CONFIG::DATA_PKT_RX_EN.
Also setting RX_PACKET_DIS causes a bogus remote fault condition
which delays link detection.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use standard API to generate a random RSS hash key
on every boot.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch enables parsing of inner layers for tunnelled packets.
Signed-off-by: Zyta Szpak <zr@semihalf.com>
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch enables bulk freeing on the Tx side.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Set MAC addresses only for primary VF's and don't for
secondary VFs.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When SQ/TXQ is reclaimed i.e reset it's stats also automatically reset
by HW. This is not the case with RQ. Also VF doesn't have write access
to statistics counter registers. Hence a new Mbox msg is introduced which
supports resetting RQ, SQ and full Qset stats. Currently only RQ stats
are being reset using this mbox message.
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Adding debug messages in case of NACK for a mailbox message, also
did small cleanups.
Signed-off-by: Radoslaw Biernacki <rad@semihalf.com>
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Instead of a round about way of converting buffers to SKBs and
combining them into a frag list, use standard skb_add_rx_frag()
API to merge page fragments. This code is useful when incoming
packets are of size more than RCV_FRAG_LEN which is currently
set to 2048bytes.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch changes the way VF's irqs are visible in /proc/interrupts.
Instead of VF id, logical interface's netdev name is used for IRQ
naming and also all secondary VF's interrupts in multiqset config
use primary VF's netdev name.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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83xx has 4 BGX blocks and are enabled mixed QLM/DLM
configs. BGX0/BGX1 are from QLM2/QLM3, BGX3 is DLM4
and BGX2 is split across DLM5 & DLM6.
This patch adds support for BGX2's split config and also
enables all 4 BGXs to be used.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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83xx will have 4 BGX blocks i.e 16 LMACs, to avoid changing
the same with every platform, nicpf struct elements which
track LMAC related info are now allocated runtime based
on platform's max possible BGX count.
Also fixed configuring min packet size for all LMAC's
supported on a platform.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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