openwrt/staging/blogic.git
7 years agonet: ethoc: Remove unused members from struct ethoc
Tobias Klauser [Thu, 5 Jan 2017 08:16:27 +0000 (09:16 +0100)]
net: ethoc: Remove unused members from struct ethoc

The io_region_size and dma_alloc members of struct ethoc are only
written but never read, so they might as well be removed.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
David S. Miller [Thu, 5 Jan 2017 16:03:07 +0000 (11:03 -0500)]
Merge git://git./linux/kernel/git/davem/net

7 years agopacket: fix panic in __packet_set_timestamp on tpacket_v3 in tx mode
Daniel Borkmann [Thu, 5 Jan 2017 01:34:28 +0000 (02:34 +0100)]
packet: fix panic in __packet_set_timestamp on tpacket_v3 in tx mode

When TX timestamping is in use with TPACKET_V3's TX ring, then we'll
hit the BUG() in __packet_set_timestamp() when ring buffer slot is
returned to user space via tpacket_destruct_skb(). This is due to v3
being assumed as unreachable here, but since 7f953ab2ba46 ("af_packet:
TX_RING support for TPACKET_V3") it's not anymore. Fix it by filling
the timestamp back into the ring slot.

Fixes: 7f953ab2ba46 ("af_packet: TX_RING support for TPACKET_V3")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'xfs-for-linus-4.10-rc3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Linus Torvalds [Thu, 5 Jan 2017 02:33:35 +0000 (18:33 -0800)]
Merge tag 'xfs-for-linus-4.10-rc3' of git://git./fs/xfs/xfs-linux

Pull xfs fixes from Darrick Wong:

 - fixes for crashes and double-cleanup errors

 - XFS maintainership handover

 - fix to prevent absurdly large block reservations

 - fix broken sysfs getter/setters

* tag 'xfs-for-linus-4.10-rc3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: fix max_retries _show and _store functions
  xfs: update MAINTAINERS
  xfs: fix crash and data corruption due to removal of busy COW extents
  xfs: use the actual AG length when reserving blocks
  xfs: fix double-cleanup when CUI recovery fails

7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Wed, 4 Jan 2017 22:14:53 +0000 (14:14 -0800)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) stmmac_drv_probe() can race with stmmac_open() because we register
    the netdevice too early. Fix from Florian Fainelli.

 2) UFO handling in __ip6_append_data() and ip6_finish_output() use
    different tests for deciding whether a frame will be fragmented or
    not, put them in sync. Fix from Zheng Li.

 3) The rtnetlink getstats handlers need to validate that the netlink
    request is large enough, fix from Mathias Krause.

 4) Use after free in mlx4 driver, from Jack Morgenstein.

 5) Fix setting of garbage UID value in sockets during setattr() calls,
    from Eric Biggers.

 6) Packet drop_monitor doesn't format the netlink messages properly
    such that nlmsg_next fails to work, fix from Reiter Wolfgang.

 7) Fix handling of wildcard addresses in l2tp lookups, from Guillaume
    Nault.

 8) __skb_flow_dissect() can crash on pptp packets, from Ian Kumlien.

 9) IGMP code doesn't reset group query timers properly, from Michal
    Tesar.

10) Fix overzealous MAIN/LOCAL route table combining in ipv4, from
    Alexander Duyck.

11) vxlan offload check needs to be more strict in be2net driver, from
    Sabrina Dubroca.

12) Moving l3mdev to packet hooks lost RX stat counters unintentionally,
    fix from David Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
  sh_eth: enable RX descriptor word 0 shift on SH7734
  sfc: don't report RX hash keys to ethtool when RSS wasn't enabled
  dpaa_eth: Initialize CGR structure before init
  dpaa_eth: cleanup after init_phy() failure
  net: systemport: Pad packet before inserting TSB
  net: systemport: Utilize skb_put_padto()
  LiquidIO VF: s/select/imply/ for PTP_1588_CLOCK
  libcxgb: fix error check for ip6_route_output()
  net: usb: asix_devices: add .reset_resume for USB PM
  net: vrf: Add missing Rx counters
  drop_monitor: consider inserted data in genlmsg_end
  benet: stricter vxlan offloading check in be_features_check
  ipv4: Do not allow MAIN to be alias for new LOCAL w/ custom rules
  net: macb: Updated resource allocation function calls to new version of API.
  net: stmmac: dwmac-oxnas: use generic pm implementation
  net: stmmac: dwmac-oxnas: fix fixed-link-phydev leaks
  net: stmmac: dwmac-oxnas: fix of-node leak
  Documentation/networking: fix typo in mpls-sysctl
  igmp: Make igmp group member RFC 3376 compliant
  flow_dissector: Update pptp handling to avoid null pointer deref.
  ...

7 years agodsa: mv88e6xxx: Optimise atu_get
Andrew Lunn [Wed, 4 Jan 2017 18:56:24 +0000 (19:56 +0100)]
dsa: mv88e6xxx: Optimise atu_get

Lookup in the ATU can be performed starting from a given MAC
address. This is faster than starting with the first possible MAC
address and iterating all entries.

Entries are returned in numeric order. So if the MAC address returned
is bigger than what we are searching for, we know it is not in the
ATU.

Using the benchmark provided by Volodymyr Bendiuga
<volodymyr.bendiuga@gmail.com>,

https://www.spinics.net/lists/netdev/msg411550.html

on an Marvell Armada 370 RD, the test to add a number of static fdb
entries went from 1.616531 seconds to 0.312052 seconds.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosh_eth: enable RX descriptor word 0 shift on SH7734
Sergei Shtylyov [Wed, 4 Jan 2017 20:10:23 +0000 (23:10 +0300)]
sh_eth: enable RX descriptor word 0 shift on SH7734

The RX descriptor word 0 on SH7734 has the RFS[9:0] field in bits 16-25
(bits  0-15 usually used for that are occupied by the packet checksum).
Thus  we need to set the 'shift_rd0'  field in the SH7734 SoC data...

Fixes: f0e81fecd4f8 ("net: sh_eth: Add support SH7734")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosfc: don't report RX hash keys to ethtool when RSS wasn't enabled
Edward Cree [Wed, 4 Jan 2017 15:10:56 +0000 (15:10 +0000)]
sfc: don't report RX hash keys to ethtool when RSS wasn't enabled

If we failed to set up RSS on EF10 (e.g. because firmware declared
 RX_RSS_LIMITED), ethtool --show-nfc $dev rx-flow-hash ... should report
 no fields, rather than confusingly reporting what fields we _would_ be
 hashing on if RSS was working.

Fixes: dcb4123cbec0 ("sfc: disable RSS when unsupported")
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agocxgb4: Support compressed error vector for T6
Arjun V [Wed, 4 Jan 2017 13:34:20 +0000 (19:04 +0530)]
cxgb4: Support compressed error vector for T6

t6fw-1.15.15.0 enabled compressed error vector in cpl_rx_pkt for T6.
Updating driver to take care of these changes.

Signed-off-by: Santosh Rastapur <santosh@chelsio.com>
Signed-off-by: Arjun V <arjun@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'sh_eth-intrs-cleanup'
David S. Miller [Wed, 4 Jan 2017 18:47:55 +0000 (13:47 -0500)]
Merge branch 'sh_eth-intrs-cleanup'

Sergei Shtylyov says:

====================
sh_eth: E-MAC interrupt handler cleanups

   Here's a set of 3 patches against DaveM's 'net-next.git' repo. I'm cleaning
up the E-MAC interrupt handling with the main goal of factoring out the E-MAC
interrupt handler into a separate function.

[1/3] sh_eth: handle only enabled E-MAC interrupts
[2/3] sh_eth: no need for *else* after *goto*
[3/3] sh_eth: factor out sh_eth_emac_interrupt()
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosh_eth: factor out sh_eth_emac_interrupt()
Sergei Shtylyov [Wed, 4 Jan 2017 12:11:21 +0000 (15:11 +0300)]
sh_eth: factor out sh_eth_emac_interrupt()

The E-MAC interrupt (EESR.ECI) is not always caused  by an error condition,
so  it really shouldn't be handled by sh_eth_error(). Factor out the E-MAC
interrupt handler, sh_eth_emac_interrupt(),  removing the ECI bit from the
EESR's values throughout the driver...

Update Cogent Embedded's copyright and clean up the whitespace in Renesas'
copyright, while at it...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosh_eth: no need for *else* after *goto*
Sergei Shtylyov [Wed, 4 Jan 2017 12:10:50 +0000 (15:10 +0300)]
sh_eth: no need for *else* after *goto*

Well, checkpatch.pl complains about *else* after *return* and *break* but
not after *goto*... and it probably should have complained about the code
in sh_eth_error().  Win couple LoCs by removing that *else*. :-)

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosh_eth: handle only enabled E-MAC interrupts
Sergei Shtylyov [Wed, 4 Jan 2017 12:10:21 +0000 (15:10 +0300)]
sh_eth: handle only enabled E-MAC interrupts

The driver should only handle the enabled E-MAC interrupts, like it does
for the E-DMAC interrupts since commit 3893b27345ac ("sh_eth: workaround
for spurious ECI interrupt"),  so mask ECSR with  ECSIPR when reading it
in sh_eth_error().

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'dpaa_eth-fixes'
David S. Miller [Wed, 4 Jan 2017 18:45:09 +0000 (13:45 -0500)]
Merge branch 'dpaa_eth-fixes'

Madalin Bucur says:

====================
dpaa_eth: a couple of fixes

Add cleanup on PHY initialization failure path, avoid using
uninitialized memory at CGR init.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodpaa_eth: Initialize CGR structure before init
Roy Pledge [Wed, 4 Jan 2017 11:21:30 +0000 (13:21 +0200)]
dpaa_eth: Initialize CGR structure before init

The QBMan CGR options needs to be zeroed before calling the init
function

Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodpaa_eth: cleanup after init_phy() failure
Madalin Bucur [Wed, 4 Jan 2017 11:21:29 +0000 (13:21 +0200)]
dpaa_eth: cleanup after init_phy() failure

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'systemport-padding-and-TSB-insertion'
David S. Miller [Wed, 4 Jan 2017 18:33:30 +0000 (13:33 -0500)]
Merge branch 'systemport-padding-and-TSB-insertion'

Florian Fainelli says:

====================
net: systemport: Fix padding vs. TSB insertion

This patch series fixes how we pad the packets submitted to the SYSTEMPORT
adapter, and how the transmit status block (prepended 8 bytes) fits in the
picture. The first patch is not technically a bug fix, but is required for the
second path to be applied and to greatly simplify the skb length calculation.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: systemport: Pad packet before inserting TSB
Florian Fainelli [Wed, 4 Jan 2017 00:34:49 +0000 (16:34 -0800)]
net: systemport: Pad packet before inserting TSB

Inserting the TSB means adding an extra 8 bytes in front the of packet
that is going to be used as metadata information by the TDMA engine, but
stripped off, so it does not really help with the packet padding.

For some odd packet sizes that fall below the 60 bytes payload (e.g: ARP)
we can end-up padding them after the TSB insertion, thus making them 64
bytes, but with the TDMA stripping off the first 8 bytes, they could
still be smaller than 64 bytes which is required to ingress the switch.

Fix this by swapping the padding and TSB insertion, guaranteeing that
the packets have the right sizes.

Fixes: 80105befdb4b ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: systemport: Utilize skb_put_padto()
Florian Fainelli [Wed, 4 Jan 2017 00:34:48 +0000 (16:34 -0800)]
net: systemport: Utilize skb_put_padto()

Since we need to pad our packets, utilize skb_put_padto() which
increases skb->len by how much we need to pad, allowing us to eliminate
the test on skb->len right below.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoipvlan: assign unique dev-id for each slave device.
Mahesh Bandewar [Tue, 3 Jan 2017 20:47:16 +0000 (12:47 -0800)]
ipvlan: assign unique dev-id for each slave device.

IPvlan setup uses one mac-address (of master). The IPv6 link-local
addresses are derived using the mac-address on the link. Lack of
dev-ids makes these link-local addresses same for all slaves including
that of master device. dev-ids are necessary to add differentiation
when L2 address is shared.

Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: dsa: remove out label in dsa_switch_setup_one
Vivien Didelot [Tue, 3 Jan 2017 19:31:49 +0000 (14:31 -0500)]
net: dsa: remove out label in dsa_switch_setup_one

The "out" label in dsa_switch_setup_one() is useless, thus remove it.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoliquidio: remove PTP support in 23XX adapters
Prasad Kanneganti [Tue, 3 Jan 2017 19:27:33 +0000 (11:27 -0800)]
liquidio: remove PTP support in 23XX adapters

liquidio driver incorrectly indicates that PTP is supported in 23XX
adapters; this patch fixes that.  PTP is supported in 66XX and 68XX
adapters, and the driver correctly indicates that.

Signed-off-by: Prasad Kanneganti <prasad.kanneganti@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoLiquidIO VF: s/select/imply/ for PTP_1588_CLOCK
Nicolas Pitre [Tue, 3 Jan 2017 18:57:00 +0000 (13:57 -0500)]
LiquidIO VF: s/select/imply/ for PTP_1588_CLOCK

Fix a minor fallout from the merge of the timers and the networking
trees. The following error may result if the PTP_1588_CLOCK
prerequisites are not available:

drivers/built-in.o: In function `ptp_clock_unregister':
(.text+0x40e0a5): undefined reference to `pps_unregister_source'
drivers/built-in.o: In function `ptp_clock_unregister':
(.text+0x40e0cc): undefined reference to `posix_clock_unregister'
drivers/built-in.o: In function `ptp_clock_event':
(.text+0x40e249): undefined reference to `pps_event'
drivers/built-in.o: In function `ptp_clock_register':
(.text+0x40e5e1): undefined reference to `pps_register_source'
drivers/built-in.o: In function `ptp_clock_register':
(.text+0x40e62c): undefined reference to `posix_clock_register'
drivers/built-in.o: In function `ptp_clock_register':
(.text+0x40e68d): undefined reference to `pps_unregister_source'

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agolibcxgb: fix error check for ip6_route_output()
Varun Prakash [Tue, 3 Jan 2017 15:55:48 +0000 (21:25 +0530)]
libcxgb: fix error check for ip6_route_output()

ip6_route_output() never returns NULL so
check dst->error instead of !dst.

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: Assert at build time the assumptions we make about the CMSG header.
David S. Miller [Wed, 4 Jan 2017 18:24:19 +0000 (13:24 -0500)]
net: Assert at build time the assumptions we make about the CMSG header.

It must always be the case that CMSG_ALIGN(sizeof(hdr)) == sizeof(hdr).

Otherwise there are missing adjustments in the various calculations
that parse and build these things.

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoscm: remove use CMSG{_COMPAT}_ALIGN(sizeof(struct {compat_}cmsghdr))
yuan linyu [Tue, 3 Jan 2017 12:42:17 +0000 (20:42 +0800)]
scm: remove use CMSG{_COMPAT}_ALIGN(sizeof(struct {compat_}cmsghdr))

sizeof(struct cmsghdr) and sizeof(struct compat_cmsghdr) already aligned.
remove use CMSG_ALIGN(sizeof(struct cmsghdr)) and
CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) keep code consistent.

Signed-off-by: yuan linyu <Linyu.Yuan@alcatel-sbell.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: usb: asix_devices: add .reset_resume for USB PM
Peter Chen [Tue, 3 Jan 2017 09:22:20 +0000 (17:22 +0800)]
net: usb: asix_devices: add .reset_resume for USB PM

The USB core may call reset_resume when it fails to resume asix device.
And USB core can recovery this abnormal resume at low level driver,
the same .resume at asix driver can work too. Add .reset_resume can
avoid disconnecting after backing from system resume, and NFS can
still be mounted after this commit.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-block
Linus Torvalds [Wed, 4 Jan 2017 17:03:37 +0000 (09:03 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block

Pull block layer fixes from Jens Axboe:
 "A set of fixes for the current series, one fixing a regression with
  block size < page cache size in the alias series from Jan. Outside of
  that, two small cleanups for wbt from Bart, a nvme pull request from
  Christoph, and a few small fixes of documentation updates"

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: fix up io_poll documentation
  block: Avoid that sparse complains about context imbalance in __wbt_wait()
  block: Make wbt_wait() definition consistent with declaration
  clean_bdev_aliases: Prevent cleaning blocks that are not in block range
  genhd: remove dead and duplicated scsi code
  block: add back plugging in __blkdev_direct_IO
  nvmet/fcloop: remove some logically dead code performing redundant ret checks
  nvmet: fix KATO offset in Set Features
  nvme/fc: simplify error handling of nvme_fc_create_hw_io_queues
  nvme/fc: correct some printk information
  nvme/scsi: Remove START STOP emulation
  nvme/pci: Delete misleading queue-wrap comment
  nvme/pci: Fix whitespace problem
  nvme: simplify stripe quirk
  nvme: update maintainers information

7 years agoMerge tag 'fbdev-v4.10-rc2' of git://github.com/bzolnier/linux
Linus Torvalds [Wed, 4 Jan 2017 17:00:57 +0000 (09:00 -0800)]
Merge tag 'fbdev-v4.10-rc2' of git://github.com/bzolnier/linux

Pull fbdev fixes from Bartlomiej Zolnierkiewicz:

 - bring fbdev subsystem back into Maintained mode

 - add missing devm_ioremap() error checking to cobalt_lcdfb driver

* tag 'fbdev-v4.10-rc2' of git://github.com/bzolnier/linux:
  video: fbdev: cobalt_lcdfb: Handle return NULL error from devm_ioremap
  MAINTAINERS: add myself as maintainer of fbdev

7 years agoMerge tag 'gcc-plugins-v4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 4 Jan 2017 16:56:05 +0000 (08:56 -0800)]
Merge tag 'gcc-plugins-v4.10-rc3' of git://git./linux/kernel/git/kees/linux

Pull gcc-plugins fixes from Kees Cook:
 "Small fixes for gcc-plugins when using certain gcc versions:

   - update gcc-common.h for gcc 7 (Emese Revfy)

   - fix latent_entropy type for early gcc on ARM (PaX Team)"

* tag 'gcc-plugins-v4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  gcc-plugins: update gcc-common.h for gcc-7
  latent_entropy: fix ARM build error on earlier gcc

7 years agovideo: fbdev: cobalt_lcdfb: Handle return NULL error from devm_ioremap
Arvind Yadav [Tue, 13 Dec 2016 08:20:52 +0000 (13:50 +0530)]
video: fbdev: cobalt_lcdfb: Handle return NULL error from devm_ioremap

Here, If devm_ioremap will fail. It will return NULL.
Kernel can run into a NULL-pointer dereference.
This error check will avoid NULL pointer dereference.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Yoichi Yuasa <yuasa@linux-mips.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
7 years agoMAINTAINERS: add myself as maintainer of fbdev
Bartlomiej Zolnierkiewicz [Wed, 4 Jan 2017 11:58:44 +0000 (12:58 +0100)]
MAINTAINERS: add myself as maintainer of fbdev

I would like to help with fbdev maintenance.  I can dedicate some time
for reviewing and handling patches but won't have time for much more.

The subsystem will remain in maintenance mode (no new drivers will be
added to it).

Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
7 years agoxfs: fix max_retries _show and _store functions
Carlos Maiolino [Wed, 4 Jan 2017 04:34:17 +0000 (20:34 -0800)]
xfs: fix max_retries _show and _store functions

max_retries _show and _store functions should test against cfg->max_retries,
not cfg->retry_timeout

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
7 years agoxfs: update MAINTAINERS
Darrick J. Wong [Wed, 4 Jan 2017 02:39:34 +0000 (18:39 -0800)]
xfs: update MAINTAINERS

I am taking over as XFS maintainer from Dave Chinner[1], so update
contact information and git tree pointers.

[1] http://lkml.iu.edu/hypermail/linux/kernel/1612.1/04390.html

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
7 years agoxfs: fix crash and data corruption due to removal of busy COW extents
Christoph Hellwig [Wed, 4 Jan 2017 02:39:33 +0000 (18:39 -0800)]
xfs: fix crash and data corruption due to removal of busy COW extents

There is a race window between write_cache_pages calling
clear_page_dirty_for_io and XFS calling set_page_writeback, in which
the mapping for an inode is tagged neither as dirty, nor as writeback.

If the COW shrinker hits in exactly that window we'll remove the delayed
COW extents and writepages trying to write it back, which in release
kernels will manifest as corruption of the bmap btree, and in debug
kernels will trip the ASSERT about now calling xfs_bmapi_write with the
COWFORK flag for holes.  A complex customer load manages to hit this
window fairly reliably, probably by always having COW writeback in flight
while the cow shrinker runs.

This patch adds another check for having the I_DIRTY_PAGES flag set,
which is still set during this race window.  While this fixes the problem
I'm still not overly happy about the way the COW shrinker works as it
still seems a bit fragile.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
7 years agoxfs: use the actual AG length when reserving blocks
Darrick J. Wong [Wed, 4 Jan 2017 02:39:33 +0000 (18:39 -0800)]
xfs: use the actual AG length when reserving blocks

We need to use the actual AG length when making per-AG reservations,
since we could otherwise end up reserving more blocks out of the last
AG than there are actual blocks.

Complained-about-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 years agoxfs: fix double-cleanup when CUI recovery fails
Darrick J. Wong [Wed, 4 Jan 2017 02:39:32 +0000 (18:39 -0800)]
xfs: fix double-cleanup when CUI recovery fails

Dan Carpenter reported a double-free of rcur if _defer_finish fails
while we're recovering CUI items.  Fix the error recovery to prevent
this.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
7 years agonet/sched: cls_matchall: Fix error path
Yotam Gigi [Tue, 3 Jan 2017 17:20:24 +0000 (19:20 +0200)]
net/sched: cls_matchall: Fix error path

Fix several error paths in matchall:
 - Release reference to actions in case the hardware fails offloading
   (relevant to skip_sw only)
 - Fix error path in case tcf_exts initialization/validation fail

Fixes: bf3994d2ed31 ("net/sched: introduce Match-all classifier")
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: vrf: Add missing Rx counters
David Ahern [Tue, 3 Jan 2017 17:37:55 +0000 (09:37 -0800)]
net: vrf: Add missing Rx counters

The move from rx-handler to L3 receive handler inadvertantly dropped the
rx counters. Restore them.

Fixes: 74b20582ac38 ("net: l3mdev: Add hook in ip and ipv6")
Reported-by: Dinesh Dutt <ddutt@cumulusnetworks.com>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoblock: fix up io_poll documentation
Jeff Moyer [Tue, 3 Jan 2017 22:51:33 +0000 (17:51 -0500)]
block: fix up io_poll documentation

/sys/block/<dev>/queue/io_poll is a boolean.  Fix the docs.

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
7 years agoMerge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next...
David S. Miller [Tue, 3 Jan 2017 21:23:01 +0000 (16:23 -0500)]
Merge branch '10GbE' of git://git./linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
10GbE Intel Wired LAN Driver Updates 2017-01-03

This series contains updates to ixgbe and ixgbevf only.

Emil fixes ixgbe to use the NVM settings for FEC, so do not override the
settings.  Fixed the indirection table for x550, where newer devices can
support up to 64 RSS queues.  Extends the rtnl_lock() to protect the call
to netif_device_detach() and ixgbe_clear_interrupt_scheme() to avoid
against a double free WARN and/or a BUG in free_msi_irqs().  Fixed AER
error handling by making sure that the driver frees the IRQs in
ixgbe_io_error_detected() when responding to a PCIe AER error, and to
restore them when the interface recovers.

Tony updates the driver to report the driver version to the firmware using
the host interface command for x550 devices.  Fixed the PHY reset check
for x550em_ext_t PHY type.  Fixed bounds checking for x540 devices to
ensure the index is valid for the LED function.  Fixed the BaseT adapters
which support 100Mb capability and were not reporting the capability.

Ken Cox adds a missing check for the trusted bit before trying to set the
MACVLAN MAC address.

Yusuke Suzuki fixes an issue with 82599 and x540 devices where receive
timestamps were not working becase the bitwise operation for RX_HWSTAMP
falg was incorrect.

Don ensures that x553 KR/KX devices correctly advertise link speeds.
Adds the mailbox message to allow for VF promiscuous mode support.

Mark fixes two issues with EEPROM access, where the semaphore was not
being held until the entire response was read and the acquiring/releasing
of the semaphore is slow.  Cleaned up firmware version method and
functions which are no longer used.  Added new interfaces for firmware
commands to access some new PHYs.

v2: fixed tab indentation in patch 12 and mis-spelled words in patch 15
    based on feedback from Sergei Shtylyov and Rami Rosen.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoixgbe: Add PF support for VF promiscuous mode
Don Skidmore [Fri, 16 Dec 2016 02:18:32 +0000 (21:18 -0500)]
ixgbe: Add PF support for VF promiscuous mode

This patch extends the xcast mailbox message to include support for
unicast promiscuous mode.  To allow a VF to enter this mode the PF
must be in promiscuous mode.

A later patch will add the support needed in the VF driver (ixgbevf)

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>
7 years agoixgbevf: Add support for VF promiscuous mode
Don Skidmore [Fri, 16 Dec 2016 02:18:31 +0000 (21:18 -0500)]
ixgbevf: Add support for VF promiscuous mode

This patch extends the mailbox message to allow for VF promiscuous
mode support.

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>
7 years agoixgbe: Implement support for firmware-controlled PHYs
Mark Rustad [Wed, 14 Dec 2016 19:02:16 +0000 (11:02 -0800)]
ixgbe: Implement support for firmware-controlled PHYs

Implement support for devices that have firmware-controlled PHYs.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: Implement firmware interface to access some PHYs
Mark Rustad [Wed, 14 Dec 2016 19:02:11 +0000 (11:02 -0800)]
ixgbe: Implement firmware interface to access some PHYs

Implement new interface for firmware commands to access some PHYs.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: Remove unused firmware version functions and method
Mark Rustad [Wed, 14 Dec 2016 19:02:06 +0000 (11:02 -0800)]
ixgbe: Remove unused firmware version functions and method

The firmware version method and functions are not used anywhere, so
remove them all.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: Fix issues with EEPROM access
Mark Rustad [Wed, 14 Dec 2016 19:02:00 +0000 (11:02 -0800)]
ixgbe: Fix issues with EEPROM access

There are two problems with EEPROM access. One is that it needs to
hold the semaphore until the entire response is read or else the
response can be corrupted by other firmware accesses. The second
problem is that acquiring and releasing the semaphore is slow, so
it should be taken and released once when multiple EEPROM accesses
will be done.

Both of these issues can be solved by adding a new function,
ixgbe_hic_unlocked, to issue firmware commands that will assume
that the caller has acquired the needed semaphore.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: Configure advertised speeds correctly for KR/KX backplane
Don Skidmore [Wed, 14 Dec 2016 01:34:51 +0000 (20:34 -0500)]
ixgbe: Configure advertised speeds correctly for KR/KX backplane

This patch ensures that the advertised link speeds are configured
for X553 KR/KX backplane.  Without this patch the link remains at
1G when resuming from low power after being downshifted by LPLU.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbevf: restore hw_addr on resume or error
Emil Tantilov [Wed, 23 Nov 2016 19:24:08 +0000 (11:24 -0800)]
ixgbevf: restore hw_addr on resume or error

Restore adapter->hw.hw_addr after handling an error, or a resume
operation to make sure we can access the registers.

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>
7 years agoixgbe: Fix incorrect bitwise operations of PTP Rx timestamp flags
Yusuke Suzuki [Mon, 21 Nov 2016 06:48:45 +0000 (06:48 +0000)]
ixgbe: Fix incorrect bitwise operations of PTP Rx timestamp flags

Rx timestamp does not work on 82599 and X540 because bitwise operation
of RX_HWTSTAMP flags is incorrect and ixgbe_ptp_rx_hwtstamp() is never
called. This patch fixes it to enable Rx timestamp on 82599 and X540.

Without this fix:
ptp4l[278.730]: selected /dev/ptp8 as PTP clock
ptp4l[278.733]: port 1: INITIALIZING to LISTENING on INITIALIZE
ptp4l[278.733]: port 0: INITIALIZING to LISTENING on INITIALIZE
ptp4l[278.834]: port 1: received SYNC without timestamp
ptp4l[278.835]: port 1: new foreign master 1c3947.fffe.60f9cc-1
ptp4l[279.834]: port 1: received SYNC without timestamp
ptp4l[280.834]: port 1: received SYNC without timestamp
ptp4l[281.834]: port 1: received SYNC without timestamp
ptp4l[282.834]: port 1: received SYNC without timestamp
ptp4l[282.835]: selected best master clock 1c3947.fffe.60f9cc
ptp4l[282.835]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE
ptp4l[283.834]: port 1: received SYNC without timestamp

With this fix:
ptp4l[239.154]: selected /dev/ptp8 as PTP clock
ptp4l[239.157]: port 1: INITIALIZING to LISTENING on INITIALIZE
ptp4l[239.157]: port 0: INITIALIZING to LISTENING on INITIALIZE
ptp4l[240.989]: port 1: new foreign master 1c3947.fffe.60f9cc-1
ptp4l[244.989]: selected best master clock 1c3947.fffe.60f9cc
ptp4l[244.989]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE
ptp4l[246.977]: master offset -899583339542096 s0 freq      +0 path delay     16222
ptp4l[247.977]: master offset -899583339617265 s1 freq  -75169 path delay     16177
ptp4l[248.977]: master offset       -130 s2 freq  -75299 path delay     16177
ptp4l[248.977]: port 1: UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED
ptp4l[249.977]: master offset         -9 s2 freq  -75217 path delay     16177
ptp4l[250.977]: master offset         88 s2 freq  -75123 path delay     16132

Fixes: a9763f3cb54c ("ixgbe: Update PTP to support X550EM_x devices")
Signed-off-by: Yusuke Suzuki <yus-suzuki@uf.jp.nec.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbevf: fix AER error handling
Emil Tantilov [Wed, 16 Nov 2016 19:25:34 +0000 (11:25 -0800)]
ixgbevf: fix AER error handling

Make sure that we free the IRQs in ixgbevf_io_error_detected() when
responding to an PCIe AER error and also restore them when the
interface recovers from it.

Previously it was possible to trigger BUG_ON() check in free_msix_irqs()
in the case where we call ixgbevf_remove() after a failed recovery from
AER error because the interrupts were not freed.

Also moved the down and free functions into ixgbevf_close_suspend()
same as with ixgbe.

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>
7 years agoixgbe: fix AER error handling
Emil Tantilov [Wed, 16 Nov 2016 17:48:02 +0000 (09:48 -0800)]
ixgbe: fix AER error handling

Make sure that we free the IRQs in ixgbe_io_error_detected() when
responding to an PCIe AER error and also restore them when the
interface recovers from it.

Previously it was possible to trigger BUG_ON() check in free_msix_irqs()
in the case where we call ixgbe_remove() after a failed recovery from
AER error because the interrupts were not freed.

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>
7 years agoixgbe: test for trust in macvlan adjustments for VF
Ken Cox [Tue, 15 Nov 2016 19:00:37 +0000 (13:00 -0600)]
ixgbe: test for trust in macvlan adjustments for VF

There are two methods for setting mac addresses in a Macvlan, that
differentiate themselves in the function macvlan_set_mac_Address.
If the macvlan mode is passthru, then we use the dev_set_mac_address
method, otherwise we use the dev_uc api via macvlan_sync_addresses.
The latter method (which would stem from using any non-passthru mode,
like bridge, or vepa), calls down into the driver in a path that terminates
in ixgbevf_set_uc_addr_vf, which sends a IXGBE_VF_SET_MACVLAN message,
which causes the pf to spawn the noted error message.  This occurs because
it appears that the guest is trying to delete the mac address of the macvlan
before adding another.

The other path in macvlan_set_mac_address uses dev_set_mac_address, which
calls into ixgbevf_set_mac which uses the IXGBE_VF_SET_MAC_ADDR to the
pf to set the macvlan mac address.

The discrepancy here is in the handlers.  The handler function for
IXGBE_VF_SET_MAC_ADDR (ixgbe_set_vf_mac_addr) has a check for
the vfinfo[].trusted bit to allow the operation if the vf is trusted.
In comparison, the IXGBE_VF_SET_MACVLAN message handler
(ixgbe_set_vf_macvlan_msg) has no such check of the trusted bit.

Signed-off-by: Ken Cox <jkc@redhat.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbevf: handle race between close and suspend on shutdown
Emil Tantilov [Fri, 11 Nov 2016 18:12:51 +0000 (10:12 -0800)]
ixgbevf: handle race between close and suspend on shutdown

When an interface is part of a namespace it is possible that
ixgbevf_close() may be called while ixgbevf_suspend() is running
which ends up in a double free WARN and/or a BUG in free_msi_irqs()

To handle this situation we extend the rtnl_lock() to protect the
call to netif_device_detach() and check for !netif_device_present()
to avoid entering close while in suspend.

Also added rtnl locks to ixgbevf_queue_reset_subtask().

CC: Alexander Duyck <alexander.h.duyck@intel.com>
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>
7 years agoixgbe: handle close/suspend race with netif_device_detach/present
Emil Tantilov [Fri, 11 Nov 2016 18:07:47 +0000 (10:07 -0800)]
ixgbe: handle close/suspend race with netif_device_detach/present

When an interface is part of a namespace it is possible that
ixgbe_close() may be called while __ixgbe_shutdown() is running
which ends up in a double free WARN and/or a BUG in free_msi_irqs().

To handle this situation we extend the rtnl_lock() to protect the
call to netif_device_detach() and ixgbe_clear_interrupt_scheme()
in __ixgbe_shutdown() and check for netif_device_present()
to avoid clearing the interrupts second time in ixgbe_close();

Also extend the rtnl lock in ixgbe_resume() to netif_device_attach().

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>
7 years agoixgbe: Fix reporting of 100Mb capability
Tony Nguyen [Fri, 11 Nov 2016 00:00:33 +0000 (16:00 -0800)]
ixgbe: Fix reporting of 100Mb capability

BaseT adapters that are capable of supporting 100Mb are not reporting this
capability.  This patch corrects the reporting so that 100Mb is shown as
supported on those adapters.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: Reduce I2C retry count on X550 devices
Tony Nguyen [Thu, 10 Nov 2016 17:57:29 +0000 (09:57 -0800)]
ixgbe: Reduce I2C retry count on X550 devices

A retry count of 10 is likely to run into problems on X550 devices that
have to detect and reset unresponsive CS4227 devices. So, reduce the I2C
retry count to 3 for X550 and above. This should avoid any possible
regressions in existing devices.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: Add bounds check for x540 LED functions
Tony Nguyen [Wed, 9 Nov 2016 18:48:48 +0000 (10:48 -0800)]
ixgbe: Add bounds check for x540 LED functions

This is an extension of commit 003287e0f087 ("ixgbevf: Correct parameter
sent to LED function"); add bounds checking to x540 functions to ensure the
index is valid.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: add mask for 64 RSS queues
Emil Tantilov [Fri, 4 Nov 2016 21:03:03 +0000 (14:03 -0700)]
ixgbe: add mask for 64 RSS queues

The indirection table was reported incorrectly for X550 and newer
where we can support up to 64 RSS queues.

Reported-by Krishneil Singh <krishneil.k.singh@intel.com>
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>
7 years agoixgbe: Fix check for ixgbe_phy_x550em_ext_t reset
Tony Nguyen [Mon, 31 Oct 2016 19:11:58 +0000 (12:11 -0700)]
ixgbe: Fix check for ixgbe_phy_x550em_ext_t reset

The generic PHY reset check we had previously is not sufficient for the
ixgbe_phy_x550em_ext_t PHY type.  Check 1.CC02.0 instead - same as
ixgbe_init_ext_t_x550().

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: Report driver version to firmware for x550 devices
Tony Nguyen [Wed, 26 Oct 2016 23:25:18 +0000 (16:25 -0700)]
ixgbe: Report driver version to firmware for x550 devices

Some x550 devices require the driver version reported to its firmware; this
patch sends the driver version string to the firmware through the host
interface command for x550 devices.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agoixgbe: do not disable FEC from the driver
Emil Tantilov [Wed, 28 Sep 2016 23:01:48 +0000 (16:01 -0700)]
ixgbe: do not disable FEC from the driver

FEC is configured by the NVM and the driver should not be
overriding it.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
7 years agogcc-plugins: update gcc-common.h for gcc-7
Kees Cook [Fri, 16 Dec 2016 19:36:06 +0000 (11:36 -0800)]
gcc-plugins: update gcc-common.h for gcc-7

This updates gcc-common.h from Emese Revfy for gcc 7. This fixes issues seen
by Kugan and Arnd. Build tested with gcc 5.4 and 7 snapshot.

Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
7 years agolatent_entropy: fix ARM build error on earlier gcc
Kees Cook [Fri, 16 Dec 2016 20:59:31 +0000 (12:59 -0800)]
latent_entropy: fix ARM build error on earlier gcc

This fixes build errors seen on gcc-4.9.3 or gcc-5.3.1 for an ARM:

arm-soc/init/initramfs.c: In function 'error':
arm-soc/init/initramfs.c:50:1: error: unrecognizable insn:
 }
 ^
(insn 26 25 27 5 (set (reg:SI 111 [ local_entropy.243 ])
        (rotatert:SI (reg:SI 116 [ local_entropy.243 ])
            (const_int -30 [0xffffffffffffffe2]))) -1
     (nil))

Patch from PaX Team <pageexec@freemail.hu>

Reported-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Brad Spengler <spender@grsecurity.net>
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
7 years agoMerge branch 'parisc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Tue, 3 Jan 2017 18:50:05 +0000 (10:50 -0800)]
Merge branch 'parisc-4.10-2' of git://git./linux/kernel/git/deller/parisc-linux

Pull parisc updates from Helge Deller:

 - limit usage of processor-internal cr16 clocksource to UP systems only

 - segfault info lines in syslog were too long, split those up

 - drop own TIF_RESTORE_SIGMASK flag and switch to generic code

* 'parisc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Add line-break when printing segfault info
  parisc: Drop TIF_RESTORE_SIGMASK and switch to generic code
  parisc: Mark cr16 clocksource unstable on SMP systems

7 years agoMerge branch 'tipc-link-starvation'
David S. Miller [Tue, 3 Jan 2017 16:13:06 +0000 (11:13 -0500)]
Merge branch 'tipc-link-starvation'

Jon Maloy says:

====================
tipc: improve interaction socket-link

We fix a very real starvation problem that may occur when a link
encounters send buffer congestion. At the same time we make the
interaction between the socket and link layer simpler and more
consistent.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotipc: reduce risk of user starvation during link congestion
Jon Paul Maloy [Tue, 3 Jan 2017 15:55:11 +0000 (10:55 -0500)]
tipc: reduce risk of user starvation during link congestion

The socket code currently handles link congestion by either blocking
and trying to send again when the congestion has abated, or just
returning to the user with -EAGAIN and let him re-try later.

This mechanism is prone to starvation, because the wakeup algorithm is
non-atomic. During the time the link issues a wakeup signal, until the
socket wakes up and re-attempts sending, other senders may have come
in between and occupied the free buffer space in the link. This in turn
may lead to a socket having to make many send attempts before it is
successful. In extremely loaded systems we have observed latency times
of several seconds before a low-priority socket is able to send out a
message.

In this commit, we simplify this mechanism and reduce the risk of the
described scenario happening. When a message is attempted sent via a
congested link, we now let it be added to the link's backlog queue
anyway, thus permitting an oversubscription of one message per source
socket. We still create a wakeup item and return an error code, hence
instructing the sender to block or stop sending. Only when enough space
has been freed up in the link's backlog queue do we issue a wakeup event
that allows the sender to continue with the next message, if any.

The fact that a socket now can consider a message sent even when the
link returns a congestion code means that the sending socket code can
be simplified. Also, since this is a good opportunity to get rid of the
obsolete 'mtu change' condition in the three socket send functions, we
now choose to refactor those functions completely.

Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotipc: modify struct tipc_plist to be more versatile
Jon Paul Maloy [Tue, 3 Jan 2017 15:55:10 +0000 (10:55 -0500)]
tipc: modify struct tipc_plist to be more versatile

During multicast reception we currently use a simple linked list with
push/pop semantics to store port numbers.

We now see a need for a more generic list for storing values of type
u32. We therefore make some modifications to this list, while replacing
the prefix 'tipc_plist_' with 'u32_'. We also add a couple of new
functions which will come to use in the next commits.

Acked-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotipc: unify tipc_wait_for_sndpkt() and tipc_wait_for_sndmsg() functions
Jon Paul Maloy [Tue, 3 Jan 2017 15:55:09 +0000 (10:55 -0500)]
tipc: unify tipc_wait_for_sndpkt() and tipc_wait_for_sndmsg() functions

The functions tipc_wait_for_sndpkt() and tipc_wait_for_sndmsg() are very
similar. The latter function is also called from two locations, and
there will be more in the coming commits, which will all need to test on
different conditions.

Instead of making yet another duplicates of the function, we now
introduce a new macro tipc_wait_for_cond() where the wakeup condition
can be stated as an argument to the call. This macro replaces all
current and future uses of the two functions, which can now be
eliminated.

Acked-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodrop_monitor: consider inserted data in genlmsg_end
Reiter Wolfgang [Tue, 3 Jan 2017 00:39:10 +0000 (01:39 +0100)]
drop_monitor: consider inserted data in genlmsg_end

Final nlmsg_len field update must reflect inserted net_dm_drop_point
data.

This patch depends on previous patch:
"drop_monitor: add missing call to genlmsg_end"

Signed-off-by: Reiter Wolfgang <wr0112358@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'TPACKET_V3-TX_RING-support'
David S. Miller [Tue, 3 Jan 2017 16:00:28 +0000 (11:00 -0500)]
Merge branch 'TPACKET_V3-TX_RING-support'

Sowmini Varadhan says:

====================
TPACKET_V3 TX_RING support

This patch series allows an application to use a single PF_PACKET
descriptor and leverage the best implementations of TX_RING
and RX_RING that exist today.

Patch 1 adds the kernel/Documentation changes for TX_RING
support and patch2 adds the associated test case in selftests.

Changes since v2: additional sanity checks for setsockopt
input for TX_RING/TPACKET_V3. Refactored psock_tpacket.c
test code to avoid code duplication from V2.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agotools: test case for TPACKET_V3/TX_RING support
Sowmini Varadhan [Tue, 3 Jan 2017 14:31:48 +0000 (06:31 -0800)]
tools: test case for TPACKET_V3/TX_RING support

Add a test case and sample code for (TPACKET_V3, PACKET_TX_RING)

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoaf_packet: TX_RING support for TPACKET_V3
Sowmini Varadhan [Tue, 3 Jan 2017 14:31:47 +0000 (06:31 -0800)]
af_packet: TX_RING support for TPACKET_V3

Although TPACKET_V3 Rx has some benefits over TPACKET_V2 Rx, *_v3
does not currently have TX_RING support. As a result an application
that wants the best perf for Tx and Rx (e.g. to handle request/response
transacations) ends up needing 2 sockets, one with *_v2 for Tx and
another with *_v3 for Rx.

This patch enables TPACKET_V2 compatible Tx features in TPACKET_V3
so that an application can use a single descriptor to get the benefits
of _v3 RX_RING and _v2 TX_RING. An application may do a block-send by
first filling up multiple frames in the Tx ring and then triggering a
transmit. This patch only support fixed size Tx frames for TPACKET_V3,
and requires that tp_next_offset must be zero.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agobenet: stricter vxlan offloading check in be_features_check
Sabrina Dubroca [Tue, 3 Jan 2017 15:26:04 +0000 (16:26 +0100)]
benet: stricter vxlan offloading check in be_features_check

When VXLAN offloading is enabled, be_features_check() tries to check if
an encapsulated packet is indeed a VXLAN packet. The check is not strict
enough, and considers any UDP-encapsulated ethernet frame with a 8-byte
tunnel header as being VXLAN. Unfortunately, both GENEVE and VXLAN-GPE
have a 8-byte header, so they get through this check.

Force the UDP destination port to be the one that has been offloaded to
hardware.

Without this, GENEVE-encapsulated packets can end up having an incorrect
checksum when both a GENEVE and a VXLAN (offloaded) tunnel are
configured.

This is similar to commit a547224dceed ("mlx4e: Do not attempt to
offload VXLAN ports that are unrecognized").

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosfc-falcon: declare module version (same as ethtool drvinfo version)
Edward Cree [Tue, 3 Jan 2017 15:46:15 +0000 (15:46 +0000)]
sfc-falcon: declare module version (same as ethtool drvinfo version)

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agosfc: declare module version (same as ethtool drvinfo version)
Edward Cree [Tue, 3 Jan 2017 15:46:00 +0000 (15:46 +0000)]
sfc: declare module version (same as ethtool drvinfo version)

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoipmr, ip6mr: add RTNH_F_UNRESOLVED flag to unresolved cache entries
Nikolay Aleksandrov [Tue, 3 Jan 2017 11:13:39 +0000 (12:13 +0100)]
ipmr, ip6mr: add RTNH_F_UNRESOLVED flag to unresolved cache entries

While working with ipmr, we noticed that it is impossible to determine
if an entry is actually unresolved or its IIF interface has disappeared
(e.g. virtual interface got deleted). These entries look almost
identical to user-space when dumping or receiving notifications. So in
order to recognize them add a new RTNH_F_UNRESOLVED flag which is set when
sending an unresolved cache entry to user-space.

Suggested-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agodsa:mv88e6xxx: allow address 0x1 in smi_init
Volodymyr Bendiuga [Tue, 3 Jan 2017 09:49:09 +0000 (10:49 +0100)]
dsa:mv88e6xxx: allow address 0x1 in smi_init

Some devices, such as the mv88e6097 do have ADDR[0] external and so it
is possible to configure the device to use SMI address 0x1. Remove the
restriction, as there are boards using this address.

Signed-off-by: Volodymyr Bendiuga <volodymyr.bendiuga@westermo.se>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: freescale: dpaa: use new api ethtool_{get|set}_link_ksettings
Philippe Reynes [Mon, 2 Jan 2017 22:49:15 +0000 (23:49 +0100)]
net: freescale: dpaa: use new api ethtool_{get|set}_link_ksettings

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'for_4.11/net-next/rds_v3' of git://git.kernel.org/pub/scm/linux/kernel...
David S. Miller [Tue, 3 Jan 2017 14:45:44 +0000 (09:45 -0500)]
Merge branch 'for_4.11/net-next/rds_v3' of git://git./linux/kernel/git/ssantosh/linux

Santosh Shilimkar says:

====================
net: RDS updates

v2->v3:
- Re-based against latest net-next head.
- Dropped a user visible change after discussing with David Miller.
  It needs some more work to fully support old/new tools matrix.
- Addressed Dave's comment about bool usage in patch
  "RDS: IB: track and log active side..."

v1->v2:
Re-aligned indentation in patch 'RDS: mark few internal functions..."

Series consist of:
 - RDMA transport fixes for map failure, listen sequence, handler panic and
   composite message notification.
 - Couple of sparse fixes.
 - Message logging improvements for bind failure, use once mr semantics
   and connection remote address, active end point.
 - Performance improvement for RDMA transport by reducing the post send
   pressure on the queue and spreading the CQ vectors.
 - Useful statistics for socket send/recv usage and receive cache usage.
 - Additional RDS CMSG used by application to track the RDS message
   stages for certain type of traffic to find out latency spots.
   Can be enabled/disabled per socket.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoipv4: Do not allow MAIN to be alias for new LOCAL w/ custom rules
Alexander Duyck [Mon, 2 Jan 2017 21:32:54 +0000 (13:32 -0800)]
ipv4: Do not allow MAIN to be alias for new LOCAL w/ custom rules

In the case of custom rules being present we need to handle the case of the
LOCAL table being intialized after the new rule has been added.  To address
that I am adding a new check so that we can make certain we don't use an
alias of MAIN for LOCAL when allocating a new table.

Fixes: 0ddcf43d5d4a ("ipv4: FIB Local/MAIN table collapse")
Reported-by: Oliver Brunel <jjk@jjacky.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: macb: Updated resource allocation function calls to new version of API.
Bartosz Folta [Mon, 2 Jan 2017 12:41:50 +0000 (12:41 +0000)]
net: macb: Updated resource allocation function calls to new version of API.

Changed function calls of resource allocation to new API. Changed way
of setting DMA mask. Removed unnecessary sanity check.
This patch is sent in regard to recently applied patch
Commit 83a77e9ec4150ee4acc635638f7dedd9da523a26
net: macb: Added PCI wrapper for Platform Driver.

Signed-off-by: Bartosz Folta <bfolta@cadence.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge branch 'dwmac-oxnas-leaks'
David S. Miller [Tue, 3 Jan 2017 14:33:00 +0000 (09:33 -0500)]
Merge branch 'dwmac-oxnas-leaks'

Johan Hovold says:

====================
net: stmmac: dwmac-oxnas: fix leaks and simplify pm

These patches fixes of-node and fixed-phydev leaks in the recently added
dwmac-oxnas driver, and ultimately switches over to using the generic pm
implementation as the required callbacks are now in place.

Note that this series has only been compile tested.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: stmmac: dwmac-oxnas: use generic pm implementation
Johan Hovold [Mon, 2 Jan 2017 11:56:04 +0000 (12:56 +0100)]
net: stmmac: dwmac-oxnas: use generic pm implementation

Now that we have an exit callback in place, add init as well and get rid
of the custom PM callbacks in favour of the generic ones.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: stmmac: dwmac-oxnas: fix fixed-link-phydev leaks
Johan Hovold [Mon, 2 Jan 2017 11:56:03 +0000 (12:56 +0100)]
net: stmmac: dwmac-oxnas: fix fixed-link-phydev leaks

Make sure to deregister and free any fixed-link phy registered during
probe on probe errors and on driver unbind by calling the new glue
helper function.

For driver unbind, use the generic stmmac-platform remove implementation
and add an exit callback to disable the clock.

Fixes: 5ed7414062e7 ("net: stmmac: Add OXNAS Glue Driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agonet: stmmac: dwmac-oxnas: fix of-node leak
Johan Hovold [Mon, 2 Jan 2017 11:56:02 +0000 (12:56 +0100)]
net: stmmac: dwmac-oxnas: fix of-node leak

Use the syscon lookup-by-phandle helper so that the reference taken by
of_parse_phandle() is released when done with the node.

Fixes: 5ed7414062e7 ("net: stmmac: Add OXNAS Glue Driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 years agoMerge tag 'fscrypt-for-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso...
Linus Torvalds [Tue, 3 Jan 2017 02:32:59 +0000 (18:32 -0800)]
Merge tag 'fscrypt-for-stable' of git://git./linux/kernel/git/tytso/fscrypt

Pull fscrypt fixes from Ted Ts'o:
 "Two fscrypt bug fixes, one of which was unmasked by an update to the
  crypto tree during the merge window"

* tag 'fscrypt-for-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt:
  fscrypt: fix renaming and linking special files
  fscrypt: fix the test_dummy_encryption mount option

7 years agoRDS: add receive message trace used by application
Santosh Shilimkar [Tue, 5 Jul 2016 05:35:15 +0000 (22:35 -0700)]
RDS: add receive message trace used by application

Socket option to tap receive path latency in various stages
in nano seconds. It can be enabled on selective sockets using
using SO_RDS_MSG_RXPATH_LATENCY socket option. RDS will return
the data to application with RDS_CMSG_RXPATH_LATENCY in defined
format. Scope is left to add more trace points for future
without need of change in the interface.

Reviewed-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
7 years agoRDS: make message size limit compliant with spec
Avinash Repaka [Mon, 29 Feb 2016 23:30:57 +0000 (15:30 -0800)]
RDS: make message size limit compliant with spec

RDS support max message size as 1M but the code doesn't check this
in all cases. Patch fixes it for RDMA & non-RDMA and RDS MR size
and its enforced irrespective of underlying transport.

Signed-off-by: Avinash Repaka <avinash.repaka@oracle.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
7 years agoRDS: add stat for socket recv memory usage
Venkat Venkatsubra [Sun, 10 Jul 2016 00:36:20 +0000 (17:36 -0700)]
RDS: add stat for socket recv memory usage

Tracks the receive side memory added to scokets and removed from sockets.

Signed-off-by: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
7 years agoRDS: IB: fix panic due to handlers running post teardown
Santosh Shilimkar [Thu, 29 Sep 2016 18:07:11 +0000 (11:07 -0700)]
RDS: IB: fix panic due to handlers running post teardown

Shutdown code reaping loop takes care of emptying the
CQ's before they being destroyed. And once tasklets are
killed, the hanlders are not expected to run.

But because of core tasklet code issues, tasklet handler could
still run even after tasklet_kill,
RDS IB shutdown code already reaps the CQs before freeing
cq/qp resources so as such the handlers have nothing left
to do post shutdown.

On other hand any handler running after teardown and trying
to access already freed qp/cq resources causes issues
Patch fixes this race by  makes sure that handlers returns
without any action post teardown.

Reviewed-by: Wengang <wen.gang.wang@oracle.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
7 years agoRDS: RDMA: Fix the composite message user notification
Santosh Shilimkar [Fri, 19 Feb 2016 04:06:47 +0000 (20:06 -0800)]
RDS: RDMA: Fix the composite message user notification

When application sends an RDS RDMA composite message consist of
RDMA transfer to be followed up by non RDMA payload, it expect to
be notified *only* when the full message gets delivered. RDS RDMA
notification doesn't behave this way though.

Thanks to Venkat for debug and root casuing the issue
where only first part of the message(RDMA) was
successfully delivered but remainder payload delivery failed.
In that case, application should not be notified with
a false positive of message delivery success.

Fix this case by making sure the user gets notified only after
the full message delivery.

Reviewed-by: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
7 years agoRDS: IB: Add vector spreading for cqs
Santosh Shilimkar [Mon, 4 Jul 2016 23:16:36 +0000 (16:16 -0700)]
RDS: IB: Add vector spreading for cqs

Based on available device vectors, allocate cqs accordingly to
get better spread of completion vectors which helps performace
great deal..

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
7 years agoRDS: IB: add few useful cache stasts
Santosh Shilimkar [Sun, 10 Jul 2016 00:14:02 +0000 (17:14 -0700)]
RDS: IB: add few useful cache stasts

Tracks the ib receive cache total, incoming and frag allocations.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
7 years agoRDS: IB: track and log active side endpoint in connection
Santosh Shilimkar [Sun, 10 Jul 2016 01:31:38 +0000 (18:31 -0700)]
RDS: IB: track and log active side endpoint in connection

Useful to know the active and passive end points in a
RDS IB connection.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
7 years agoRDS: RDMA: silence the use_once mr log flood
Santosh Shilimkar [Mon, 4 Jul 2016 02:14:10 +0000 (19:14 -0700)]
RDS: RDMA: silence the use_once mr log flood

In absence of extension headers, message log will keep
flooding the console. As such even without use_once we can
clean up the MRs so its not really an error case message
so make it debug message

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
7 years agoRDS: IB: split the mr registration and invalidation path
Santosh Shilimkar [Tue, 8 Mar 2016 17:19:01 +0000 (09:19 -0800)]
RDS: IB: split the mr registration and invalidation path

MR invalidation in RDS is done in background thread and not in
data path like registration. So break the dependency between them
which helps to remove the performance bottleneck.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
7 years agoRDS: RDMA: return appropriate error on rdma map failures
Santosh Shilimkar [Tue, 5 Jul 2016 00:04:37 +0000 (17:04 -0700)]
RDS: RDMA: return appropriate error on rdma map failures

The first message to a remote node should prompt a new
connection even if it is RDMA operation. For RDMA operation
the MR mapping can fail because connections is not yet up.

Since the connection establishment is asynchronous,
we make sure the map failure because of unavailable
connection reach to the user by appropriate error code.
Before returning to the user, lets trigger the connection
so that its ready for the next retry.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
7 years agoRDS: RDMA: start rdma listening after init
Qing Huang [Mon, 4 Jul 2016 23:29:13 +0000 (16:29 -0700)]
RDS: RDMA: start rdma listening after init

This prevents RDS from handling incoming rdma packets before RDS
completes initializing its recv/send components.

Signed-off-by: Qing Huang <qing.huang@oracle.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
7 years agoRDS: RDMA: fix the ib_map_mr_sg_zbva() argument
Santosh Shilimkar [Mon, 5 Dec 2016 00:25:43 +0000 (16:25 -0800)]
RDS: RDMA: fix the ib_map_mr_sg_zbva() argument

Fixes warning: Using plain integer as NULL pointer

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>