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This patch adds necessary APIs to interface with
qede aRFS support in successive patch.
It also reserves separate PTT entry for aRFS,
[as being in fastpath flow] for hardware access instead of
trying to acquire it at run time from the ptt pool.
Signed-off-by: Manish Chopra <manish.chopra@cavium.com>
Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The MTU overhead calculation in L2TP device set-up
merged via commit b784e7ebfce8cfb16c6f95e14e8532d0768ab7ff
needs to be adjusted to lock the tunnel socket while
referencing the sub-data structures to derive the
socket's IP overhead.
Reported-by: Guillaume Nault <g.nault@alphalink.fr>
Tested-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: R. Parameswaran <rparames@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement mlx5e's IPoIB SKB transmit using the helper functions provided
by mlx5e ethernet tx flow, the only difference in the code between
mlx5e_xmit and mlx5i_xmit is that IPoIB has some extra fields to fill
(UD datagram segment) in the TX descriptor (WQE) and it doesn't need to
have any vlan handling.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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IB flow tables need the underlay qp to perform flow steering.
Here we change the API of the flow tables creation to accept the
underlay QP number as a parameter in order to support IB (IPoIB) flow
steering.
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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New capability bit: ipoib_enhanced_offloads, indicates new ability for UD
QP to do RSS and enhanced IPoIB offloads and acceleration.
Add underlay_qpn to the TIS and flow_table objects In order to support
SET_ROOT command, to connect between IPoIB QPs and flow steering tables.
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch moves as is the legacy DSA code from dsa.c to legacy.c,
except the few shared symbols which remain in dsa.c.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts were simply overlapping changes. In the net/ipv4/route.c
case the code had simply moved around a little bit and the same fix
was made in both 'net' and 'net-next'.
In the net/sched/sch_generic.c case a fix in 'net' happened at
the same time that a new argument was added to qdisc_hash_add().
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"Just a small update to xpad driver to recognize yet another gamepad,
and another change making sure userio.h is exported"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - add support for Razer Wildcat gamepad
uapi: add missing install of userio.h
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Pull networking fixes from David Miller:
"Things seem to be settling down as far as networking is concerned,
let's hope this trend continues...
1) Add iov_iter_revert() and use it to fix the behavior of
skb_copy_datagram_msg() et al., from Al Viro.
2) Fix the protocol used in the synthetic SKB we cons up for the
purposes of doing a simulated route lookup for RTM_GETROUTE
requests. From Florian Larysch.
3) Don't add noop_qdisc to the per-device qdisc hashes, from Cong
Wang.
4) Don't call netdev_change_features with the team lock held, from
Xin Long.
5) Revert TCP F-RTO extension to catch more spurious timeouts because
it interacts very badly with some middle-boxes. From Yuchung
Cheng.
6) Fix the loss of error values in l2tp {s,g}etsockopt calls, from
Guillaume Nault.
7) ctnetlink uses bit positions where it should be using bit masks,
fix from Liping Zhang.
8) Missing RCU locking in netfilter helper code, from Gao Feng.
9) Avoid double frees and use-after-frees in tcp_disconnect(), from
Eric Dumazet.
10) Don't do a changelink before we register the netdevice in
bridging, from Ido Schimmel.
11) Lock the ipv6 device address list properly, from Rabin Vincent"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (29 commits)
netfilter: ipt_CLUSTERIP: Fix wrong conntrack netns refcnt usage
netfilter: nft_hash: do not dump the auto generated seed
drivers: net: usb: qmi_wwan: add QMI_QUIRK_SET_DTR for Telit PID 0x1201
ipv6: Fix idev->addr_list corruption
net: xdp: don't export dev_change_xdp_fd()
bridge: netlink: register netdevice before executing changelink
bridge: implement missing ndo_uninit()
bpf: reference may_access_skb() from __bpf_prog_run()
tcp: clear saved_syn in tcp_disconnect()
netfilter: nf_ct_expect: use proper RCU list traversal/update APIs
netfilter: ctnetlink: skip dumping expect when nfct_help(ct) is NULL
netfilter: make it safer during the inet6_dev->addr_list traversal
netfilter: ctnetlink: make it safer when checking the ct helper name
netfilter: helper: Add the rcu lock when call __nf_conntrack_helper_find
netfilter: ctnetlink: using bit to represent the ct event
netfilter: xt_TCPMSS: add more sanity tests on tcph->doff
net: tcp: Increase TCP_MIB_OUTRSTS even though fail to alloc skb
l2tp: don't mask errors in pppol2tp_getsockopt()
l2tp: don't mask errors in pppol2tp_setsockopt()
tcp: restrict F-RTO to work-around broken middle-boxes
...
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Pull virtio fixes from Michael S. Tsirkin:
"virtio oops fixes
The virtio pci rework using shared interrupts caused a lot of issues.
We tried to fix them but run out of time. Revert for now, and revisit
the issue for the next kernel.
Luckily we are able to do this without loosing automatic interrupt
NUMA affinity which was the main motivator for the rework"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio-pci: Remove affinity hint before freeing the interrupt
Revert "virtio_pci: remove struct virtio_pci_vq_info"
Revert "virtio_pci: use shared interrupts for virtqueues"
Revert "virtio_pci: don't duplicate the msix_enable flag in struct pci_dev"
Revert "virtio_pci: simplify MSI-X setup"
Revert "virtio_pci: fix out of bound access for msix_names"
MAINTAINERS: fix virtio file pattern
virtio_console: fix uninitialized variable use
virtio_net: clear MTU when out of range
virtio: allow drivers to validate features
virtio_net: enable big packets for large MTU values
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Dave noticed that after fixing MADV_DONTNEED vs numa balancing race the
last pmdp_huge_get_and_clear_notify() user is gone.
Let's drop the helper.
Link: http://lkml.kernel.org/r/20170306112047.24809-1-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pass the new extended ACK reporting struct to all of the generic
netlink parsing functions. For now, pass NULL in almost all callers
(except for some in the core.)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now that we have extended error reporting and a new message format for
netlink ACK messages, also extend this to be able to return arbitrary
cookie data on success.
This will allow, for example, nl80211 to not send an extra message for
cookies identifying newly created objects, but return those directly
in the ACK message.
The cookie data size is currently limited to 20 bytes (since Jamal
talked about using SHA1 for identifiers.)
Thanks to Jamal Hadi Salim for bringing up this idea during the
discussions.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pass the extended ACK reporting struct down from generic netlink to
the families, using the existing struct genl_info for simplicity.
Also add support to set the extended ACK information from generic
netlink users.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add the base infrastructure and UAPI for netlink extended ACK
reporting. All "manual" calls to netlink_ack() pass NULL for now and
thus don't get extended ACK reporting.
Big thanks goes to Pablo Neira Ayuso for not only bringing up the
whole topic at netconf (again) but also coming up with the nlattr
passing trick and various other ideas.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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1. Don't get the metric RTAX_ADVMSS of dst.
There are two reasons.
1) Its caller dst_metric_advmss has already invoke dst_metric_advmss
before invoke default_advmss.
2) The ipv4_default_advmss is used to get the default mss, it should
not try to get the metric like ip6_default_advmss.
2. Use sizeof(tcphdr)+sizeof(iphdr) instead of literal 40.
3. Define one new macro IPV4_MAX_PMTU instead of 65535 according to
RFC 2675, section 5.1.
Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This field is never big enough to warrant 16-bitness.
8-bit accesses enjoy shorted encoding on i386/x86_64 than 16-bit
accesses:
add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-10 (-10)
function old new delta
loopback_setup 169 164 -5
ether_setup 148 143 -5
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Using 16-bit ->hh_len doesn't save any memory, save some .text instead:
add/remove: 0/0 grow/shrink: 1/6 up/down: 2/-19 (-17)
function old new delta
neigh_update 2312 2314 +2
fwnet_header_cache 199 197 -2
eth_header_cache 101 99 -2
ip6_finish_output2 2371 2368 -3
vrf_finish_output6 1522 1518 -4
vrf_finish_output 1413 1409 -4
ip_finish_output2 1627 1623 -4
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull SCSI target fixes from Nicholas Bellinger:
"There has been work in a number of different areas over the last
weeks, including:
- Fix target-core-user (TCMU) back-end bi-directional handling (Xiubo
Li + Mike Christie + Ilias Tsitsimpis)
- Fix iscsi-target TMR reference leak during session shutdown (Rob
Millner + Chu Yuan Lin)
- Fix target_core_fabric_configfs.c race between LUN shutdown +
mapped LUN creation (James Shen)
- Fix target-core unknown fabric callback queue-full errors (Potnuri
Bharat Teja)
- Fix iscsi-target + iser-target queue-full handling in order to
support iw_cxgb4 RNICs. (Potnuri Bharat Teja + Sagi Grimberg)
- Fix ALUA transition state race between multiple initiator (Mike
Christie)
- Drop work-around for legacy GlobalSAN initiator, to allow QLogic
57840S + 579xx offload HBAs to work out-of-the-box in MSFT
environments. (Martin Svec + Arun Easi)
Note that a number are CC'ed for stable, and although the queue-full
bug-fixes required for iser-target to work with iw_cxgb4 aren't CC'ed
here, they'll be posted to Greg-KH separately"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
tcmu: Skip Data-Out blocks before gathering Data-In buffer for BIDI case
iscsi-target: Drop work-around for legacy GlobalSAN initiator
target: Fix ALUA transition state race between multiple initiators
iser-target: avoid posting a recv buffer twice
iser-target: Fix queue-full response handling
iscsi-target: Propigate queue_data_in + queue_status errors
target: Fix unknown fabric callback queue-full errors
tcmu: Fix wrongly calculating of the base_command_size
tcmu: Fix possible overwrite of t_data_sg's last iov[]
target: Avoid mappedlun symlink creation during lun shutdown
iscsi-target: Fix TMR reference leak during session shutdown
usb: gadget: Correct usb EP argument for BOT status request
tcmu: Allow cmd_time_out to be set to zero (disabled)
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
"This contains fixes for two long standing subtle bugs:
- kthread_bind() on a new kthread binds it to specific CPUs and
prevents userland from messing with the affinity or cgroup
membership. Unfortunately, for cgroup membership, there's a window
between kthread creation and kthread_bind*() invocation where the
kthread can be moved into a non-root cgroup by userland.
Depending on what controllers are in effect, this can assign the
kthread unexpected attributes. For example, in the reported case,
workqueue workers ended up in a non-root cpuset cgroups and had
their CPU affinities overridden. This broke workqueue invariants
and led to workqueue stalls.
Fixed by closing the window between kthread creation and
kthread_bind() as suggested by Oleg.
- There was a bug in cgroup mount path which could allow two
competing mount attempts to attach the same cgroup_root to two
different superblocks.
This was caused by mishandling return value from kernfs_pin_sb().
Fixed"
* 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: avoid attaching a cgroup root to two different superblocks
cgroup, kthread: close race window where new kthreads can be migrated to non-root cgroups
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There's no need to have struct bpf_map_type_list since
it just contains a list_head, the type, and the ops
pointer. Since the types are densely packed and not
actually dynamically registered, it's much easier and
smaller to have an array of type->ops pointer. Also
initialize this array statically to remove code needed
to initialize it.
In order to save duplicating the list, move it to the
types header file added by the previous patch and
include it in the same fashion.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There's no need to have struct bpf_prog_type_list since
it just contains a list_head, the type, and the ops
pointer. Since the types are densely packed and not
actually dynamically registered, it's much easier and
smaller to have an array of type->ops pointer. Also
initialize this array statically to remove code needed
to initialize it.
In order to save duplicating the list, move it to a new
header file and include it in the places needing it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-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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Unused now that all callers switched to pci_alloc_irq_vectors.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:
====================
pull request (net-next): ipsec-next 2017-04-11
1) Remove unused field from struct xfrm_mgr.
2) Code size optimizations for the xfrm prefix hash and
address match.
3) Branch optimization for addr4_match.
All patches from Alexey Dobriyan.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts commit 53a020c661741f3b87ad3ac6fa545088aaebac9b.
The cleanup seems to be one of the changes that broke
hybernation for some users. We are still not sure why
but revert helps.
Tested-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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o s/bpf_bpf_get_socket_cookie/bpf_get_socket_cookie
Signed-off-by: Alexander Alemayhu <alexander@alemayhu.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts commit def12888c161e6fec0702e5ec9c3962846e3a21d.
As per discussion between Roopa Prabhu and David Ahern, it is
advisable that we instead have the code collect the setlink triggered
events into a bitmask emitted in the IFLA_EVENT netlink attribute.
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS fixes from Al Viro:
"statx followup fixes and a fix for stack-smashing on alpha"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
alpha: fix stack smashing in old_adjtimex(2)
statx: Include a mask for stx_attributes in struct statx
statx: Reserve the top bit of the mask for future struct expansion
xfs: report crtime and attribute flags to statx
ext4: Add statx support
statx: optimize copy of struct statx to userspace
statx: remove incorrect part of vfs_statx() comment
statx: reject unknown flags when using NULL path
Documentation/filesystems: fix documentation for ->getattr()
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All DSA tag receive functions do strictly the same thing after they have located
the originating source port from their tag specific protocol:
- push ETH_HLEN bytes
- set pkt_type to PACKET_HOST
- call eth_type_trans()
- bump up counters
- call netif_receive_skb()
Factor all of that into dsa_switch_rcv(). This also makes us return a pointer to
a sk_buff, which makes us symetric with the xmit function.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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All available gso_type flags are currently in use, so
extend gso_type from 'unsigned short' to 'unsigned int'
to be able to add further flags.
We reorder the struct skb_shared_info to use
two bytes of the four byte hole before dataref.
All fields before dataref are cleared, i.e.
four bytes more than before the change.
The remaining two byte hole is moved to the
beginning of the structure, this protects us
from immediate overwites on out of bound writes
to the sk_buff head.
Structure layout on x86-64 before the change:
struct skb_shared_info {
unsigned char nr_frags; /* 0 1 */
__u8 tx_flags; /* 1 1 */
short unsigned int gso_size; /* 2 2 */
short unsigned int gso_segs; /* 4 2 */
short unsigned int gso_type; /* 6 2 */
struct sk_buff * frag_list; /* 8 8 */
struct skb_shared_hwtstamps hwtstamps; /* 16 8 */
u32 tskey; /* 24 4 */
__be32 ip6_frag_id; /* 28 4 */
atomic_t dataref; /* 32 4 */
/* XXX 4 bytes hole, try to pack */
void * destructor_arg; /* 40 8 */
skb_frag_t frags[17]; /* 48 272 */
/* --- cacheline 5 boundary (320 bytes) --- */
/* size: 320, cachelines: 5, members: 12 */
/* sum members: 316, holes: 1, sum holes: 4 */
};
Structure layout on x86-64 after the change:
struct skb_shared_info {
short unsigned int _unused; /* 0 2 */
unsigned char nr_frags; /* 2 1 */
__u8 tx_flags; /* 3 1 */
short unsigned int gso_size; /* 4 2 */
short unsigned int gso_segs; /* 6 2 */
struct sk_buff * frag_list; /* 8 8 */
struct skb_shared_hwtstamps hwtstamps; /* 16 8 */
unsigned int gso_type; /* 24 4 */
u32 tskey; /* 28 4 */
__be32 ip6_frag_id; /* 32 4 */
atomic_t dataref; /* 36 4 */
void * destructor_arg; /* 40 8 */
skb_frag_t frags[17]; /* 48 272 */
/* --- cacheline 5 boundary (320 bytes) --- */
/* size: 320, cachelines: 5, members: 13 */
};
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull block fixes from Jens Axboe:
"Here's a pull request for 4.11-rc, fixing a set of issues mostly
centered around the new scheduling framework. These have been brewing
for a while, but split up into what we absolutely need in 4.11, and
what we can defer until 4.12. These are well tested, on both single
queue and multiqueue setups, and with and without shared tags. They
fix several hangs that have happened in testing.
This is obviously larger than I would have preferred at this point in
time, but I don't think we can shave much off this and still get the
desired results.
In detail, this pull request contains:
- a set of five fixes for NVMe, mostly from Christoph and one from
Roland.
- a series from Bart, fixing issues with dm-mq and SCSI shared tags
and scheduling. Note that one of those patches commit messages may
read like an optimization, but it is in fact an important fix for
queue restarts in particular.
- a series from Omar, most importantly fixing a hang with multiple
hardware queues when we fail to get a driver tag. Another important
fix in there is for resizing hardware queues, which nbd does when
handling multiple sockets for one connection.
- fixing an imbalance in putting the ctx for hctx request allocations
from Minchan"
* 'for-linus' of git://git.kernel.dk/linux-block:
blk-mq: Restart a single queue if tag sets are shared
dm rq: Avoid that request processing stalls sporadically
scsi: Avoid that SCSI queues get stuck
blk-mq: Introduce blk_mq_delay_run_hw_queue()
blk-mq: remap queues when adding/removing hardware queues
blk-mq-sched: fix crash in switch error path
blk-mq-sched: set up scheduler tags when bringing up new queues
blk-mq-sched: refactor scheduler initialization
blk-mq: use the right hctx when getting a driver tag fails
nvmet: fix byte swap in nvmet_parse_io_cmd
nvmet: fix byte swap in nvmet_execute_write_zeroes
nvmet: add missing byte swap in nvmet_get_smart_log
nvme: add missing byte swap in nvme_setup_discard
nvme: Correct NVMF enum values to match NVMe-oF rev 1.0
block: do not put mq context in blk_mq_alloc_request_hctx
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fix from Linus Walleij:
"This late fix for pin control is hopefully the last I send this cycle.
The problem was detected early in the v4.11 release cycle and there
has been some back and forth on how to solve it. Sadly the proper fix
arrives late, but at least not too late.
An issue was detected with pin control on the Freescale i.MX after the
refactorings for more general group and function handling.
We now have the proper fix for this"
* tag 'pinctrl-v4.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: core: Fix pinctrl_register_and_init() with pinctrl_enable()
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It's rather confusing that the netlink message flags are
numbered 1, 2, 4, 8, 16, 32, <unused>, 0x100. Make that
more understandable by numbering the lower ones with hex
constants as well.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Introduce a new getsockopt operation to retrieve the socket cookie
for a specific socket based on the socket fd. It returns a unique
non-decreasing cookie for each socket.
Tested: https://android-review.googlesource.com/#/c/358163/
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Chenbo Feng <fengc@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2017-04-16
This patchset provides some updates for the mlx5 drivers.
From Majd,
1st patch, Adds ConnectX-6 and ConnectX-6 VF PCI IDs support.
From Guy,
2nd patch, Adds RXFCS scatter support.
3rd patch, Small cleanup to make a function static.
From Eran,
4th patch, Adds 4 zeros padding to ethtool FW version.
6th patch, Trevial code reuse cleanup
From Inbar,
5th patch, Show board id in ethtool driver information
From Saeed,
7th patch, Set default RX moderation parameters on driver load
as a small fix for the latest fail-safe config feature.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull KVM fixes from Radim Krčmář:
"ARM:
- Fix a problem with GICv3 userspace save/restore
- Clarify GICv2 userspace save/restore ABI
- Be more careful in clearing GIC LRs
- Add missing synchronization primitive to our MMU handling code
PPC:
- Check for a NULL return from kzalloc
s390:
- Prevent translation exception errors on valid page tables for the
instruction-exection-protection support
x86:
- Fix Page-Modification Logging when running a nested guest"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: PPC: Book3S HV: Check for kmalloc errors in ioctl
KVM: nVMX: initialize PML fields in vmcs02
KVM: nVMX: do not leak PML full vmexit to L1
KVM: arm/arm64: vgic: Fix GICC_PMR uaccess on GICv3 and clarify ABI
KVM: arm64: Ensure LRs are clear when they should be
kvm: arm/arm64: Fix locking for kvm_free_stage2_pgd
KVM: s390: remove change-recording override support
arm/arm64: KVM: Take mmap_sem in kvm_arch_prepare_memory_region
arm/arm64: KVM: Take mmap_sem in stage2_unmap_vm
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When __{start,end}_ro_after_init is referenced from C code, we run into
the following build errors on blackfin:
kernel/extable.c:169: undefined reference to `__start_ro_after_init'
kernel/extable.c:169: undefined reference to `__end_ro_after_init'
The build error is due to the fact that blackfin is one of the few
arches that prepends an underscore '_' to all symbols defined in C.
Fix this by wrapping __{start,end}_ro_after_init in vmlinux.lds.h with
VMLINUX_SYMBOL(), which adds the necessary prefix for arches that have
HAVE_UNDERSCORE_SYMBOL_PREFIX.
Link: http://lkml.kernel.org/r/1491259387-15869-1-git-send-email-jeyu@redhat.com
Signed-off-by: Jessica Yu <jeyu@redhat.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Eddie Kovsky <ewk@edkovsky.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add the support for the 4-bytes tag for DSA port distinguishing inserted
allowing receiving and transmitting the packet via the particular port.
The tag is being added after the source MAC address in the ethernet
header.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Landen Chao <Landen.Chao@mediatek.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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To improve scalability, if hardware queues are shared, restart
a single hardware queue in round-robin fashion. Rename
blk_mq_sched_restart_queues() to reflect the new semantics.
Remove blk_mq_sched_mark_restart_queue() because this function
has no callers. Remove flag QUEUE_FLAG_RESTART because this
patch removes the code that uses this flag.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Introduce a function that runs a hardware queue unconditionally
after a delay. Note: there is already a function that stops and
restarts a hardware queue after a delay, namely blk_mq_delay_queue().
This function will be used in the next patch in this series.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Long Li <longli@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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In elevator_switch(), if blk_mq_init_sched() fails, we attempt to fall
back to the original scheduler. However, at this point, we've already
torn down the original scheduler's tags, so this causes a crash. Doing
the fallback like the legacy elevator path is much harder for mq, so fix
it by just falling back to none, instead.
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Some drivers can't support all features in all configurations. At the
moment we blindly set FEATURES_OK and later FAILED. Support this better
by adding a callback drivers can use to do some early checks.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Recent pinctrl changes to allow dynamic allocation of pins exposed one
more issue with the pinctrl pins claimed early by the controller itself.
This caused a regression for IMX6 pinctrl hogs.
Before enabling the pin controller driver we need to wait until it has
been properly initialized, then claim the hogs, and only then enable it.
To fix the regression, split the code into pinctrl_claim_hogs() and
pinctrl_enable(). And then let's require that pinctrl_enable() is always
called by the pin controller driver when ready after calling
pinctrl_register_and_init().
Depends-on: 950b0d91dc10 ("pinctrl: core: Fix regression caused by delayed
work for hogs")
Fixes: df61b366af26 ("pinctrl: core: Use delayed work for hogs")
Fixes: e566fc11ea76 ("pinctrl: imx: use generic pinctrl helpers for
managing groups")
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Mika Penttilä <mika.penttila@nextfour.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Stefan Agner <stefan@agner.ch>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Gary Bisson <gary.bisson@boundarydevices.com>
Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add support for rx-fcs flag from ethtool.
In case this flag is set, update all RQs to scatter the FCS data into
the packet.
Signed-off-by: Guy Ergas <guye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Now that management firmware is capable of telling us the number of CQs
available for a given PF, qed needs to communicate the number to qedi
so it would know have many to use.
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
David Howells says:
====================
rxrpc: Miscellany
Here's a set of patches that make some minor changes to AF_RXRPC:
(1) Store error codes in struct rxrpc_call::error as negative codes and
only convert to positive in recvmsg() to avoid confusion inside the
kernel.
(2) Note the result of trying to abort a call (this fails if the call is
already 'completed').
(3) Don't abort on temporary errors whilst processing challenge and
response packets, but rather drop the packet and wait for
retransmission.
And also adds some more tracing:
(4) Protocol errors.
(5) Received abort packets.
(6) Changes in the Rx window size due to ACK packet information.
(7) Client call initiation (to allow the rxrpc_call struct pointer, the
wire call ID and the user ID/afs_call pointer to be cross-referenced).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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A new function, kernel_sock_ip_overhead(), is provided
to calculate the cumulative overhead imposed by the IP
Header and IP options, if any, on a socket's payload.
The new function returns an overhead of zero for sockets
that do not belong to the IPv4 or IPv6 address families.
This is used in the L2TP code path to compute the
total outer IP overhead on the L2TP tunnel socket when
calculating the default MTU for Ethernet pseudowires.
Signed-off-by: R. Parameswaran <rparames@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit c7e2b9689ef "sched: introduce vlan action" added both the
UAPI values for the vlan actions (TCA_VLAN_ACT_) and these two
in-kernel ones which are not used, remove them.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
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Mostly simple cases of overlapping changes (adding code nearby,
a function whose name changes, for example).
Signed-off-by: David S. Miller <davem@davemloft.net>
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