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Fix most of the complaints about the style of the code.
Things like extra blank lines and return statements.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Better to use kcalloc rather than kzalloc and multiply for an array.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The function get_netvsc_net_device had conditional locking. This was
unnecessary, incorrect, but harmless. It was unnecessary since the
code is only called from netlink netdev event callback where RTNL
is always acquired before the callbacks are run. It was incorrect
because of use of trylock and then continuing.
Fix by replacing with proper assertion.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma
Saeed Mahameed says:
====================
Mellanox mlx5 core driver updates 2016-08-20
This series contains several low level and API updates for mlx5 core
commands interface and mlx5_ifc.h to be shared as base code for net-next and
rdma mlx5 4.9 submissions.
From Saeed, ten patches that refactors old layouts of firmware commands which
were manually generated before we introduced the mlx5_ifc, now all of the firmware
commands inbox/outbox layouts moved to use mlx5_ifc and we remove the old
manually generated structures. Plus to those ten patches, we add two patches
that unifies mlx5 commands execution interface and improve the driver log messages
in that area.
From Hadar and Ilya, added the needed hardware bits and infrastructure for
minimum inline headers setting and encap/decap commands and capabilities,
needed for E-Switch offloads.
This series applies on top latest net-next and rdma/master, and smoothly merges with
the latest "Mellanox 100G mlx5 fixes 2016-08-16" series already applied into net branch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Ivan Khoronzhuk says:
====================
net: ethernet: ti: cpsw: add cpdma multi-queue support
This series is intended to allow cpsw driver to use cpdma ability of
h/w shaper to send/receive data with up to 8 tx and 8 rx queues. This
series doesn't contain interface to configure h/w shaper itself, it
contains only multi-queue support part and ability to configure number
of tx/rx queues with ethtool, it also doesn't contain mapping of input
traffic to rx queues, as it can depend on usage and requires separate
interface for setup.
Default shaper mode - priority mode. The h/w shaper configuration will
be added with separate patch series. This series doesn't affect on net
throughput.
Tested on:
am572x-idk, 1Gbps link
am335-boneblack, 100Mbps link.
A simple example for splitting traffic on queues:
$ ethtool -l eth0
$ ethtool -L eth0 rx 8 tx 8
$ tc qdisc add dev eth0 root handle 1: multiq
$ tc filter add dev eth0 parent 1: protocol ip prio 1 u32 \
match ip dst 172.22.39.12 \
action skbedit queue_mapping 5
Based on: net-next/master
V3: https://lkml.org/lkml/2016/8/15/788
Since v3:
-changed arg to priv in fill_rx_channels in
net: ethernet: ti: davinci_cpdma: split descs num between all channels
- added more comments to cpsw_set_channels
Since v2:
- added new patch to avoid warn while ctrl stop
net: ethernet: ti: cpsw: add ethtool channels support
- enable ctrl in case at least one interface is running
Since v1:
- removed cpdam_check_free_desc function
- remove pm_runtime calls as they are used in begin/complete ethtool calls now
- removed change of driver version. it can be done later
- corrected setup of channels for dual_emac mode with ethtool
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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These ops allow to control number of channels driver is allowed to
work with at cpdma level. The maximum number of channels is 8 for
rx and 8 for tx. In dual_emac mode the h/w channels are shared
between two interfaces and changing number on one interface changes
number of channels on another.
How many channels are supported and enabled:
$ ethtool -l ethX
Change number of channels (up to 8)
$ ethtool -L ethX rx 6 tx 6
Per-channel statistic:
$ ethtool -S ethX
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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internals
Keep the driver internals in C file. Currently it's not required for
drivers to know rx or tx a channel is, except create function.
So correct "channel create" function, and use all channel struct
macroses only for internal use.
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The cpsw h/w supports up to 8 tx and 8 rx channels. This patch adds
multi-queue support to the driver only, shaper configuration will
be added with separate patch series. Default shaper mode, as
before, priority mode, but with corrected priority order, 0 - is
highest priority, 7 - lowest.
The poll function handles all unprocessed channels, till all of
them are free, beginning from hi priority channel.
In dual_emac mode the channels are shared between two network devices,
as it's with single-queue default mode.
The statistic for every channel can be read with:
$ ethtool -S ethX
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The interrupts shouldn't be disabled while receiving skb, but while
ctrl_stop, the channels are stopped and all remaining packets are
handled with netif_receive_skb(), it can cause WARN_ONCE when ctrl
is stopping while not all packets were handled with NAPIs:
lock_irq_save
cpdma_ctlr_stop
cpdma_chan_top
__cpdma_chan_free
cpsw_rx_handler
netif_receive_skb
So, split locking while ctrl stop thus interrupts are still
enabled while skbs handling. It can cause WARN_ONCE in rare
cases when ctrl is stopping while not all packets were handled
with NAPIs.
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Tx channels share same pool of descriptors. Thus one channel can
block another if pool is emptied by one. But, the shaper should
decide which channel is allowed to send packets. To avoid such
impact of one channel on another, let every channel to have its
own piece of pool.
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sk_user_data mismatch between what kcm expects (psock) and what strparser expects (strparser).
Queued rx_work, for example calling strp_check_rcv after socket buffer changes, will never complete.
sk_user_data is unused in strparser, so just remove the check.
Signed-off-by: Dave Watson <davejwatson@fb.com>
Acked-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Last FW submission reverted various macros into an older form,
where they generate compilation warnings on some architectures.
Bring back the newer macros instead.
Fixes: 05fafbfb3d77 ("qed: utilize FW 8.10.10.0")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Andrew Lunn says:
====================
Fix MV88E6131 tagging
Marvell has two different tagging protocols for frames passed to a
swicth. There is the older DSA and the newer EDSA. Somewhere along the
way, we broke support for switches which only support DSA, by trying
to configure them to use EDSA. These patches add back support for
switches which only support DSA, by allowing the drivers to
dynamically indicate the tagging protocol they support to the DSA
core. This needs to be dynamic since the mv88e6xxx has to support two
protocols.
Thanks go to Jamie Lentin for reporting the problem, helping debug it,
providing some of the fix, and testing.
====================
Tested-By: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Without it, a mv88e6131 switch will not forward incoming unicast
packets to the CPU port.
Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The PPU method of accessing PHYs makes use of a timer. Make sure this
timer is deleted before unloading the driver.
Reported-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Older chips only support DSA tagging on the CPU port. New devices
support both DSA and EDSA. The driver needs to tell the core the tag
protocol to use, and configure the switch for what is available.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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DSA drivers may drive different families of switches which need
different tag protocol. Rather than hard code the tag protocol in the
driver structure, have a callback for the DSA core to call.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If no RARP, BOOTP, or DHCP response is received, ic_dev is never set,
causing a NULL pointer dereference in ic_close_devs():
Sending DHCP requests ...... timed out!
Unable to handle kernel NULL pointer dereference at virtual address 00000004
To fix this, add a check to avoid dereferencing ic_dev if it is still
NULL.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: 2647cffb2bc6fbed ("net: ipconfig: Support using "delayed" DHCP replies")
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.open-mesh.org/linux-merge
Simon Wunderlich says:
====================
This feature patchset includes the following changes:
- place kref_get near usage of referenced objects, separate patches
for various used objects to improve readability and maintainability
by Sven Eckelmann (18 patches)
- Keep batadv net device when all hard interfaces disappear, to
improve situations where tools currently use work arounds, by
Sven Eckelmann
- Add an option to disable debugfs support to minimize footprint when
userspace uses netlink only, by Sven Eckelmann
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Rahul Lakkireddy says:
====================
TX max rate limiting for Chelsio T4/T5 adapters
This series of patches implement tx max rate limiting per queue on
Chelsio T4/T5 hardware. This is achieved by first creating a tx
scheduling class with the specified max rate. The queue is then
bound to the newly created class. If a scheduling class with similar
max rate already exists, then the queue is bound to the matching class.
Patch 1 adds support for setting tx scheduling classes.
Patch 2 adds support to bind/unbind queues to/from the scheduling classes.
Patch 3 implements the set_tx_maxrate NDO.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement set_tx_maxrate NDO to perform per queue tx rate limiting.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support to bind/unbind specified tx queues to/from scheduling
classes. If a queue is already bound to a scheduling class, it is
unbound first and then bound to a new specified class.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support to create tx traffic scheduling classes with specified
scheduling parameters. Return an existing class if a match is found
with same scheduling parameters.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Yuval Mintz says:
====================
qed*: IOV patch series
Recent FW [8.10.10.0] enabled us to support sriov interaction
with legacy VF/PF. This patch series adds the necessary driver changes
to utilize this additional compatibility.
In addition, utilize the new FW ability to prevent pause floods by VFs,
and fix a bug that is [mostly] exposed by the added legacy support.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Each VF employees a lock that's supposed to serialize its usage of the
HW channel for communication with its PF, but the critical section is
ill-defined:
- VFs currently release the lock whenever the PF response arrives,
prior to actually processing the reply buffer [which was also supposed
to have been protected by same lock].
- The lock would be released on first response, ignoring the possibilty
the sw flow isn't over [as might be the case of the acquisition flow].
As a result, the flow would run unprotected and would cause a double
mutex release [as the additional message completion would release it
while its actually already free].
Change the flow to have a dedicated function to be called at end of each
flow and release the lock.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Modern VFs can't run on old non-compatible as the fastpath HSI is
slightly changed - but as the HSI is actually very close [basically,
a single bit whose meaning flipped] this can be supported with small
modifications.
The major differences would be in:
- Recognizing that VF is running on top of a legacy PF.
- Returning some slowpath configurations that are no longer needed
on top of modern PFs, but would be required when working over
the legacy ones.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Firmware would silently drop any control frame sent by VF to prevent
a malicious VF from generating pause flood in the network.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The 8.10.x FW added support for forward compatability as well as
'future' backward compatibility, but only to those VFs that were
using HSI which was 8.10.x based or newer.
The latest firmware now supports backward compatibility for the
older VFs based on 8.7.x and 8.8.x firmware as well.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This node pointer is returned by of_parse_phandle() with
refcount incremented in this function. of_node_put() on it
before exitting this function.
This is detected by Coccinelle semantic patch.
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Reviewed-by: Kedareswara rao Appana <appanad@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* Reuse existing functionality from memdup_user() instead of keeping
duplicate source code.
This issue was detected by using the Coccinelle software.
* Return directly if this copy operation failed.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After commit 22dc13c837c3 ("net_sched: convert tcf_exts from list to pointer array")
we do dynamic allocation in tcf_exts_init(), therefore we need
to handle the ENOMEM case properly.
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts commit 5ab1fe72d5490978104fc493615ea29dd7238766.
This change still has problems.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Simplify the return expression.
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use PPP_ALLSTATIONS, PPP_UI, and SEND_SHUTDOWN instead of 0xff,
0x03, and 2 separately.
Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.
Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phy_dev in the private structure, and update the driver to use the
one contained in struct net_device.
Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
10GbE Intel Wired LAN Driver Updates 2016-08-20
This series contains updates to ixgbe and ixgbevf.
Veola fixes how the backplane reports the media in ethtool, as KR, KX or
KX4 based on the backplane interface present.
Emil fixes ixgbevf since an incorrect size parameter for
ixgbevf_write_msg_read_ack() ended up only giving the PF the first 4
bytes of the MAC address, so correct the size by calculating it on the
fly for all instances where we call ixgbevf_write_msg_read_ack(). Added
geneve receive offload support for x550em_a.
Don fixes the LED interface for x557 since it uses a different interface.
Added support for the new x557 copper device.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for the new copper device X557.
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This shouldn't matter as nothing should be attached still to be
consisted control MDIO speed for these devices as well.
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The X557 devices use a different interface to the LED for the port.
This patch reflect that change.
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Add geneve Rx offload support for x550em_a.
The implementation follows the vxlan code with the lower 16 bits of
the VXLANCTRL register holding the UDP port for VXLAN and the upper
for Geneve.
Disabled NFS filters in the RFCTL register which allows us to simplify
the check for VXLAN and Geneve packets in ixgbe_rx_checksum().
Removed vxlan from the name of the callback functions and replaced it
with udp_tunnel which is more in line with the new API.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The PF driver was only receiving the first 4 bytes of the MAC due
to an incorrect size parameter for ixgbevf_write_msg_read_ack()
in ixgbevf_set_rar_vf().
Correct the size by calculating it on a fly for all instances where
we call ixgbevf_write_msg_read_ack()
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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ethtool reports backplane type interfaces as 1000/10000baseT link modes.
This has been corrected to report the media as KR, KX or KX4 based on the backplane interface present.
Signed-off-by: Veola Nazareth <veola.nazareth@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Markus Elfring says:
====================
tun: Fine-tuning for update_filter()
A few update suggestions were taken into account
from static source code analysis.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Adjust a jump target according to the Linux coding style convention.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reuse existing functionality from memdup_user() instead of keeping
duplicate source code.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
40GbE Intel Wired LAN Driver Updates 2016-08-19
This series contains updates to i40e and i40evf only.
Jake provides several patches, first just moves a function to co-locate
the two functions related to configuring RSS via the admin queue, which
should help in spotting bugs when comparing the two functions. Fixed
an issue where commit e69ff813af35 ("i40e: rework the functions to
configure RSS with similar parameters") missed checking whether the seed
is NULL before using it and did not use the passed in *lut parameter.
Fixed an issue where a previous refactor missed i40e_vsi_config_rss()
and the values were being ignored, so checked for the fields and used
them instead of default values. Lastly replaced calls to
create_singlethread_workqueue() with alloc_workqueue() to provide more
control over workqueue creation and allows explicit setting of the
desired mode of operation.
Mitch adds link speed to log messages and reports speed through ethtool.
Carolyn refactors tail bump check and fixes byte ordering problems found
when enabling this feature support. Adds support for HMC resources and
profile commands for x722 firmware.
Heinrich Schuchardt fixes format identifiers from %u to %d since the
variable is defined as an integer.
Catherine fixes an issue where there was a race condition between the
completion of the client open and calls to the client ops, so ensured
that client ops are not called until we are sure client is open.
Harshitha makes sure that i40e_client_release() does not try to use
an adapter pointer which may not be initialized, so make sure it is.
Joe Perches fixes the use of the local macro XSTRINGIFY() to use
__stringify() instead.
Avinash corrects the mutex usage in client_subtask(). Fixed the RDMA
client to open again after reset since it is closed during a PF reset.
Jeff (me) clean up whitespace issues, where indentation was done
inconsistently and with spaces versus tabs.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The patch creates sample code exercising bpf_skb_{set,get}_tunnel_key,
and bpf_skb_{set,get}_tunnel_opt for GRE, VXLAN, and GENEVE. A native
tunnel device is created in a namespace to interact with a lwtunnel
device out of the namespace, with metadata enabled. The bpf_skb_set_*
program is attached to tc egress and bpf_skb_get_* is attached to egress
qdisc. A ping between two tunnels is used to verify correctness and
the result of bpf_skb_get_* printed by bpf_trace_printk.
Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The existing code uses busy retry when unable to send out receive
completions due to full ring buffer. It also gives up retrying after limit
is reached, and causes receive buffer slots not being recycled.
This patch implements batching of receive completions. It also prevents
dropping receive completions due to full ring buffer.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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