Commit Graph

72462 Commits

Author SHA1 Message Date
Fugang Duan
d1616f07e8 net: fec: free/restore resource in related probe error pathes
Fixes in probe error path:
- Restore dev_id before failed_ioremap path.
  Fixes: ("net: fec: restore dev_id in the cases of probe error")
- Call of_node_put(phy_node) before failed_phy path.
  Fixes: ("net: fec: Support phys probed from devicetree and fixed-link")

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-05 11:19:11 -05:00
Sergei Shtylyov
dfe8266b8d sh_eth: fix TSU resource handling
When switching  the driver to the managed device API,  I managed to break
the  case of a  dual Ether devices sharing a single TSU: the 2nd Ether port
wouldn't probe. Iwamatsu-san has tried to fix this but his patch was buggy
and he then dropped the ball...

The solution is to  limit calling devm_request_mem_region() to the first
of  the two  ports  sharing the same TSU, so devm_ioremap_resource() can't
be used anymore for the TSU resource...

Fixes: d5e07e6921 ("sh_eth: use managed device API")
Reported-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-04 14:17:34 -05:00
Jerome Brunet
879626e3a5 net: stmmac: enable EEE in MII, GMII or RGMII only
Note in the databook - Section 4.4 - EEE :
" The EEE feature is not supported when the MAC is configured to use the
TBI, RTBI, SMII, RMII or SGMII single PHY interface. Even if the MAC
supports multiple PHY interfaces, you should activate the EEE mode only
when the MAC is operating with GMII, MII, or RGMII interface."

Applying this restriction solves a stability issue observed on Amlogic
gxl platforms operating with RMII interface and the internal PHY.

Fixes: 83bf79b6bb ("stmmac: disable at run-time the EEE if not supported")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Tested-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-04 14:02:01 -05:00
Florian Fainelli
54e98b5d66 net: dsa: b53: Turn off Broadcom tags for more switches
Models such as BCM5395/97/98 and BCM53125/24/53115 and compatible require that
we turn on managed mode to actually act on Broadcom tags, otherwise they just
pass them through on ingress (host -> switch) and don't insert them in egress
(switch -> host). Turning on managed mode is simple, but requires us to
properly support ARL misses on multicast addresses which is a much more
involved set of changes not suitable for a bug fix for this release.

Reported-by: Jochen Friedrich <jochen@scram.de>
Fixes: 7edc58d614 ("net: dsa: b53: Turn on Broadcom tags")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-04 09:57:12 -05:00
David S. Miller
820d1d5eba Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2018-01-03

This series contains fixes for i40e and i40evf.

Amritha removes the UDP support for big buffer cloud filters since it is
not supported and having UDP enabled is a bug.

Alex fixes a bug in the __i40e_chk_linearize() which did not take into
account large (16K or larger) fragments that are split over 2 descriptors,
which could result in a transmit hang.

Jake fixes an issue where a devices own MAC address could be removed from
the unicast address list, so force a check on every address sync to ensure
removal does not happen.

Jiri Pirko fixes the return value when a filter configuration is not
supported, do not return "invalid" but return "not supported" so that
the core can react correctly.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03 13:49:24 -05:00
Neil Horman
ee4aa8df70 3c59x: fix missing dma_mapping_error check and bad ring refill logic
A few spots in 3c59x missed calls to dma_mapping_error checks, casuing
WARN_ONS to trigger.  Clean those up.  While we're at it, refactor the
refill code a bit so that if skb allocation or dma mapping fails, we
recycle the existing buffer.  This prevents holes in the rx ring, and
makes for much simpler logic

Note: This is compile only tested.  Ted, if you could run this and
confirm that it continues to work properly, I would appreciate it, as I
currently don't have access to this hardware

Signed-off-by: Neil Horman <nhorman@redhat.com>
CC: Steffen Klassert <klassert@mathematik.tu-chemnitz.de>
CC: "David S. Miller" <davem@davemloft.net>
Reported-by: tedheadster@gmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03 13:44:14 -05:00
Netanel Belgazal
ee4552aaf3 net: ena: fix error handling in ena_down() sequence
ENA admin command queue errors are not handled as part of ena_down().
As a result, in case of error admin queue transitions to non-running
state and aborts all subsequent commands including those coming from
ena_up(). Reset scheduled by the driver from the timer service
context would not proceed due to sharing rtnl with ena_up()/ena_down()

Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03 12:21:00 -05:00
Netanel Belgazal
7853b49ce8 net: ena: unmask MSI-X only after device initialization is completed
Under certain conditions MSI-X interrupt might arrive right after it
was unmasked in ena_up(). There is a chance it would be processed by
the driver before device ENA_FLAG_DEV_UP flag is set. In such a case
the interrupt is ignored.
ENA device operates in auto-masked mode, therefore ignoring
interrupt leaves it masked for good.
Moving unmask of interrupt to be the last step in ena_up().

Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03 12:21:00 -05:00
Arjun Vynipadath
15962a1828 cxgb4: Fix FW flash errors
commit 96ac18f14a ("cxgb4: Add support for new flash parts")
removed initialization of adapter->params.sf_fw_start causing issues
while flashing firmware to card. We no longer need sf_fw_start
in adapter->params as we already have macros defined for FW flash
addresses.

Fixes: 96ac18f14a ("cxgb4: Add support for new flash parts")
Signed-off-by: Arjun Vynipadath <arjun@chelsio.com>
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03 12:19:50 -05:00
Jiri Pirko
bc4244c6e3 i40e: flower: Fix return value for unsupported offload
When filter configuration is not supported, drivers should return
-EOPNOTSUPP so the core can react correctly.

Fixes: 2f4b411a3d ("i40e: Enable cloud filters via tc-flower")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-03 09:01:25 -08:00
Jacob Keller
458867b2ca i40e: don't remove netdev->dev_addr when syncing uc list
In some circumstances, such as with bridging, it is possible that the
stack will add a devices own MAC address to its unicast address list.

If, later, the stack deletes this address, then the i40e driver will
receive a request to remove this address.

The driver stores its current MAC address as part of the MAC/VLAN hash
array, since it is convenient and matches exactly how the hardware
expects to be told which traffic to receive.

This causes a problem, since for more devices, the MAC address is stored
separately, and requests to delete a unicast address should not have the
ability to remove the filter for the MAC address.

Fix this by forcing a check on every address sync to ensure we do not
remove the device address.

There is a very narrow possibility of a race between .set_mac and
.set_rx_mode, if we don't change netdev->dev_addr before updating our
internal MAC list in .set_mac. This might be possible if .set_rx_mode is
going to remove MAC "XYZ" from the list, at the same time as .set_mac
changes our dev_addr to MAC "XYZ", we might possibly queue a delete,
then an add in .set_mac, then queue a delete in .set_rx_mode's
dev_uc_sync and then update netdev->dev_addr. We can avoid this by
moving the copy into dev_addr prior to the changes to the MAC filter
list.

A similar race on the other side does not cause problems, as if we're
changing our MAC form A to B, and we race with .set_rx_mode, it could
queue a delete from A, we'd update our address, and allow the delete.
This seems like a race, but in reality we're about to queue a delete of
A anyways, so it would not cause any issues.

A race in the initialization code is unlikely because the netdevice has
not yet been fully initialized and the stack should not be adding or
removing addresses yet.

Note that we don't (yet) need similar code for the VF driver because it
does not make use of __dev_uc_sync and __dev_mc_sync, but instead roles
its own method for handling updates to the MAC/VLAN list, which already
has code to protect against removal of the hardware address.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-03 08:49:39 -08:00
Alexander Duyck
248de22e63 i40e/i40evf: Account for frags split over multiple descriptors in check linearize
The original code for __i40e_chk_linearize didn't take into account the
fact that if a fragment is 16K in size or larger it has to be split over 2
descriptors and the smaller of those 2 descriptors will be on the trailing
edge of the transmit. As a result we can get into situations where we didn't
catch requests that could result in a Tx hang.

This patch takes care of that by subtracting the length of all but the
trailing edge of the stale fragment before we test for sum. By doing this
we can guarantee that we have all cases covered, including the case of a
fragment that spans multiple descriptors. We don't need to worry about
checking the inner portions of this since 12K is the maximum aligned DMA
size and that is larger than any MSS will ever be since the MTU limit for
jumbos is something on the order of 9K.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-03 08:47:29 -08:00
Fugang Duan
3f38c68303 net: fec: defer probe if regulator is not ready
Defer probe if regulator is not ready. E.g. some regulator is fixed
regulator controlled by i2c expander gpio, the i2c device may be probed
after the driver, then it should handle the case of defer probe error.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03 11:40:41 -05:00
Fugang Duan
e90f686b43 net: fec: restore dev_id in the cases of probe error
The static variable dev_id always plus one before netdev registerred.
It should restore the dev_id value in the cases of probe error.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03 11:40:41 -05:00
Amritha Nambiar
64e711ca59 i40e: Remove UDP support for big buffer
Since UDP based filters are not supported via big buffer cloud
filters, remove UDP support.  Also change a few return types to
indicate unsupported vs invalid configuration.

Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-03 08:39:57 -08:00
David S. Miller
ba77919808 Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2018-01-02

This series contains fixes for e1000 and e1000e.

Tushar Dave adds a check to the driver so that it won't attempt to disable a
device that is already disabled for e1000.

Benjamin Poirier provides a fix to e1000e, where a previous commit that
Benjamin submitted changed the meaning of the return value for
"check_for_link" for copper media and not all the instances were properly
updated.  Benjamin fixes the remaining instances that needed the change.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03 11:25:45 -05:00
SZ Lin (林上智)
bd30ffc414 NET: usb: qmi_wwan: add support for YUGA CLM920-NC5 PID 0x9625
This patch adds support for PID 0x9625 of YUGA CLM920-NC5.

YUGA CLM920-NC5 needs to enable QMI_WWAN_QUIRK_DTR before QMI operation.

qmicli -d /dev/cdc-wdm0 -p --dms-get-revision
[/dev/cdc-wdm0] Device revision retrieved:
        Revision: 'CLM920_NC5-V1  1  [Oct 23 2016 19:00:00]'

Signed-off-by: SZ Lin (林上智) <sz.lin@moxa.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 14:49:34 -05:00
Benjamin Poirier
4110e02eb4 e1000e: Fix e1000_check_for_copper_link_ich8lan return value.
e1000e_check_for_copper_link() and e1000_check_for_copper_link_ich8lan()
are the two functions that may be assigned to mac.ops.check_for_link when
phy.media_type == e1000_media_type_copper. Commit 19110cfbb3 ("e1000e:
Separate signaling for link check/link up") changed the meaning of the
return value of check_for_link for copper media but only adjusted the first
function. This patch adjusts the second function likewise.

Reported-by: Christian Hesse <list@eworm.de>
Reported-by: Gabriel C <nix.or.die@gmail.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=198047
Fixes: 19110cfbb3 ("e1000e: Separate signaling for link check/link up")
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Tested-by: Christian Hesse <list@eworm.de>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-02 11:40:00 -08:00
Tushar Dave
0b76aae741 e1000: fix disabling already-disabled warning
This patch adds check so that driver does not disable already
disabled device.

[   44.637743] advantechwdt: Unexpected close, not stopping watchdog!
[   44.997548] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input6
[   45.013419] e1000 0000:00:03.0: disabling already-disabled device
[   45.013447] ------------[ cut here ]------------
[   45.014868] WARNING: CPU: 1 PID: 71 at drivers/pci/pci.c:1641 pci_disable_device+0xa1/0x105:
						pci_disable_device at drivers/pci/pci.c:1640
[   45.016171] CPU: 1 PID: 71 Comm: rcu_perf_shutdo Not tainted 4.14.0-01330-g3c07399 #1
[   45.017197] task: ffff88011bee9e40 task.stack: ffffc90000860000
[   45.017987] RIP: 0010:pci_disable_device+0xa1/0x105:
						pci_disable_device at drivers/pci/pci.c:1640
[   45.018603] RSP: 0000:ffffc90000863e30 EFLAGS: 00010286
[   45.019282] RAX: 0000000000000035 RBX: ffff88013a230008 RCX: 0000000000000000
[   45.020182] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000203
[   45.021084] RBP: ffff88013a3f31e8 R08: 0000000000000001 R09: 0000000000000000
[   45.021986] R10: ffffffff827ec29c R11: 0000000000000002 R12: 0000000000000001
[   45.022946] R13: ffff88013a230008 R14: ffff880117802b20 R15: ffffc90000863e8f
[   45.023842] FS:  0000000000000000(0000) GS:ffff88013fd00000(0000) knlGS:0000000000000000
[   45.024863] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.025583] CR2: ffffc900006d4000 CR3: 000000000220f000 CR4: 00000000000006a0
[   45.026478] Call Trace:
[   45.026811]  __e1000_shutdown+0x1d4/0x1e2:
						__e1000_shutdown at drivers/net/ethernet/intel/e1000/e1000_main.c:5162
[   45.027344]  ? rcu_perf_cleanup+0x2a1/0x2a1:
						rcu_perf_shutdown at kernel/rcu/rcuperf.c:627
[   45.027883]  e1000_shutdown+0x14/0x3a:
						e1000_shutdown at drivers/net/ethernet/intel/e1000/e1000_main.c:5235
[   45.028351]  device_shutdown+0x110/0x1aa:
						device_shutdown at drivers/base/core.c:2807
[   45.028858]  kernel_power_off+0x31/0x64:
						kernel_power_off at kernel/reboot.c:260
[   45.029343]  rcu_perf_shutdown+0x9b/0xa7:
						rcu_perf_shutdown at kernel/rcu/rcuperf.c:637
[   45.029852]  ? __wake_up_common_lock+0xa2/0xa2:
						autoremove_wake_function at kernel/sched/wait.c:376
[   45.030414]  kthread+0x126/0x12e:
						kthread at kernel/kthread.c:233
[   45.030834]  ? __kthread_bind_mask+0x8e/0x8e:
						kthread at kernel/kthread.c:190
[   45.031399]  ? ret_from_fork+0x1f/0x30:
						ret_from_fork at arch/x86/entry/entry_64.S:443
[   45.031883]  ? kernel_init+0xa/0xf5:
						kernel_init at init/main.c:997
[   45.032325]  ret_from_fork+0x1f/0x30:
						ret_from_fork at arch/x86/entry/entry_64.S:443
[   45.032777] Code: 00 48 85 ed 75 07 48 8b ab a8 00 00 00 48 8d bb 98 00 00 00 e8 aa d1 11 00 48 89 ea 48 89 c6 48 c7 c7 d8 e4 0b 82 e8 55 7d da ff <0f> ff b9 01 00 00 00 31 d2 be 01 00 00 00 48 c7 c7 f0 b1 61 82
[   45.035222] ---[ end trace c257137b1b1976ef ]---
[   45.037838] ACPI: Preparing to enter system sleep state S5

Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-02 11:35:53 -08:00
Russell King
0b2122e493 sfp: fix sfp-bus oops when removing socket/upstream
When we remove a socket or upstream, and the other side isn't
registered, we dereference a NULL pointer, causing a kernel oops.
Fix this.

Fixes: ce0aa27ff3 ("sfp: add sfp-bus to bridge between network devices and sfp cages")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 13:40:28 -05:00
Russell King
ac817f5ad0 phylink: ensure we report link down when LOS asserted
Although we disable the netdev carrier, we fail to report in the kernel
log that the link went down.  Fix this.

Fixes: 9525ae8395 ("phylink: add phylink infrastructure")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 13:39:11 -05:00
Gao Feng
d02fd6e7d2 macvlan: Fix one possible double free
Because the macvlan_uninit would free the macvlan port, so there is one
double free case in macvlan_common_newlink. When the macvlan port is just
created, then register_netdevice or netdev_upper_dev_link failed and they
would invoke macvlan_uninit. Then it would reach the macvlan_port_destroy
which triggers the double free.

Signed-off-by: Gao Feng <gfree.wind@vip.163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 13:30:14 -05:00
Ido Schimmel
90045fc9c7 mlxsw: spectrum: Relax sanity checks during enslavement
Since commit 25cc72a338 ("mlxsw: spectrum: Forbid linking to devices that
have uppers") the driver forbids enslavement to netdevs that already
have uppers of their own, as this can result in various ordering
problems.

This requirement proved to be too strict for some users who need to be
able to enslave ports to a bridge that already has uppers. In this case,
we can allow the enslavement if the bridge is already known to us, as
any configuration performed on top of the bridge was already reflected
to the device.

Fixes: 25cc72a338 ("mlxsw: spectrum: Forbid linking to devices that have uppers")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Alexander Petrovskiy <alexpe@mellanox.com>
Tested-by: Alexander Petrovskiy <alexpe@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 12:38:26 -05:00
Ido Schimmel
8764a8267b mlxsw: spectrum_router: Fix NULL pointer deref
When we remove the neighbour associated with a nexthop we should always
refuse to write the nexthop to the adjacency table. Regardless if it is
already present in the table or not.

Otherwise, we risk dereferencing the NULL pointer that was set instead
of the neighbour.

Fixes: a7ff87acd9 ("mlxsw: spectrum_router: Implement next-hop routing")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Alexander Petrovskiy <alexpe@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 12:37:16 -05:00
Xin Long
52a589d51f geneve: update skb dst pmtu on tx path
Commit a93bf0ff44 ("vxlan: update skb dst pmtu on tx path") has fixed
a performance issue caused by the change of lower dev's mtu for vxlan.

The same thing needs to be done for geneve as well.

Note that geneve cannot adjust it's mtu according to lower dev's mtu
when creating it. The performance is very low later when netperfing
over it without fixing the mtu manually. This patch could also avoid
this issue.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 12:34:59 -05:00
Linus Torvalds
2758b3e3e6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) IPv6 gre tunnels end up with different default features enabled
    depending upon whether netlink or ioctls are used to bring them up.
    Fix from Alexey Kodanev.

 2) Fix read past end of user control message in RDS< from Avinash
    Repaka.

 3) Missing RCU barrier in mini qdisc code, from Cong Wang.

 4) Missing policy put when reusing per-cpu route entries, from Florian
    Westphal.

 5) Handle nested PCI errors properly in bnx2x driver, from Guilherme G.
    Piccoli.

 6) Run nested transport mode IPSEC packets via tasklet, from Herbert
    Xu.

 7) Fix handling poll() for stream sockets in tipc, from Parthasarathy
    Bhuvaragan.

 8) Fix two stack-out-of-bounds issues in IPSEC, from Steffen Klassert.

 9) Another zerocopy ubuf handling fix, from Willem de Bruijn.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
  strparser: Call sock_owned_by_user_nocheck
  sock: Add sock_owned_by_user_nocheck
  skbuff: in skb_copy_ubufs unclone before releasing zerocopy
  tipc: fix hanging poll() for stream sockets
  sctp: Replace use of sockets_allocated with specified macro.
  bnx2x: Improve reliability in case of nested PCI errors
  tg3: Enable PHY reset in MTU change path for 5720
  tg3: Add workaround to restrict 5762 MRRS to 2048
  tg3: Update copyright
  net: fec: unmap the xmit buffer that are not transferred by DMA
  tipc: fix tipc_mon_delete() oops in tipc_enable_bearer() error path
  tipc: error path leak fixes in tipc_enable_bearer()
  RDS: Check cmsg_len before dereferencing CMSG_DATA
  tcp: Avoid preprocessor directives in tracepoint macro args
  tipc: fix memory leak of group member when peer node is lost
  net: sched: fix possible null pointer deref in tcf_block_put
  tipc: base group replicast ack counter on number of actual receivers
  net_sched: fix a missing rcu barrier in mini_qdisc_pair_swap()
  net: phy: micrel: ksz9031: reconfigure autoneg after phy autoneg workaround
  ip6_gre: fix device features for ioctl setup
  ...
2017-12-28 23:20:21 -08:00
Linus Torvalds
19286e4a7a Third pull request for 4.15-rc
- cxgb4 fix for an iser testing failure as debugged by Steve and Sagi.
   The problem was a driver bug in the handling of shutting down a QP.
 - Various vmw_pvrdma fixes for bogus WARN_ON, missed resource free on error
   unwind and a use after free bug
 - Improper congestion counter values on mlx5 when link aggregation is enabled
 - ipoib lockdep regression introduced in this merge window
 - hfi1 regression supporting the device in a VM introduced in a recent patch
 - Typo that breaks future uAPI compatibility in the verbs core
 - More SELinux related oops fixing
 - Fix an oops during error unwind in mlx5
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "This is the next batch of for-rc patches from RDMA. It includes the
  fix for the ipoib regression I mentioned last time, and the result of
  a fairly major debugging effort to get iser working reliably on cxgb4
  hardware - it turns out the cxgb4 driver was not handling QP error
  flushing properly causing iser to fail.

   - cxgb4 fix for an iser testing failure as debugged by Steve and
     Sagi. The problem was a driver bug in the handling of shutting down
     a QP.

   - Various vmw_pvrdma fixes for bogus WARN_ON, missed resource free on
     error unwind and a use after free bug

   - Improper congestion counter values on mlx5 when link aggregation is
     enabled

   - ipoib lockdep regression introduced in this merge window

   - hfi1 regression supporting the device in a VM introduced in a
     recent patch

   - Typo that breaks future uAPI compatibility in the verbs core

   - More SELinux related oops fixing

   - Fix an oops during error unwind in mlx5"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  IB/mlx5: Fix mlx5_ib_alloc_mr error flow
  IB/core: Verify that QP is security enabled in create and destroy
  IB/uverbs: Fix command checking as part of ib_uverbs_ex_modify_qp()
  IB/mlx5: Serialize access to the VMA list
  IB/hfi: Only read capability registers if the capability exists
  IB/ipoib: Fix lockdep issue found on ipoib_ib_dev_heavy_flush
  IB/mlx5: Fix congestion counters in LAG mode
  RDMA/vmw_pvrdma: Avoid use after free due to QP/CQ/SRQ destroy
  RDMA/vmw_pvrdma: Use refcount_dec_and_test to avoid warning
  RDMA/vmw_pvrdma: Call ib_umem_release on destroy QP path
  iw_cxgb4: when flushing, complete all wrs in a chain
  iw_cxgb4: reflect the original WR opcode in drain cqes
  iw_cxgb4: Only validate the MSN for successful completions
2017-12-28 23:06:01 -08:00
Guilherme G. Piccoli
f7084059a9 bnx2x: Improve reliability in case of nested PCI errors
While in recovery process of PCI error (called EEH on PowerPC arch),
another PCI transaction could be corrupted causing a situation of
nested PCI errors. Also, this scenario could be reproduced with
error injection mechanisms (for debug purposes).

We observe that in case of nested PCI errors, bnx2x might attempt to
initialize its shmem and cause a kernel crash due to bad addresses
read from MCP. Multiple different stack traces were observed depending
on the point the second PCI error happens.

This patch avoids the crashes by:

 * failing PCI recovery in case of nested errors (since multiple
 PCI errors in a row are not expected to lead to a functional
 adapter anyway), and by,

 * preventing access to adapter FW when MCP is failed (we mark it as
 failed when shmem cannot get initialized properly).

Reported-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Acked-by: Shahed Shaikh <Shahed.Shaikh@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-27 12:13:32 -05:00
Siva Reddy Kallam
e60ee41aaf tg3: Enable PHY reset in MTU change path for 5720
A customer noticed RX path hang when MTU is changed on the fly while
running heavy traffic with NCSI enabled for 5717 and 5719. Since 5720
belongs to same ASIC family, we observed same issue and same fix
could solve this problem for 5720.

Signed-off-by: Siva Reddy Kallam <siva.kallam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-27 11:09:06 -05:00
Siva Reddy Kallam
4419bb1ced tg3: Add workaround to restrict 5762 MRRS to 2048
One of AMD based server with 5762 hangs with jumbo frame traffic.
This AMD platform has southbridge limitation which is restricting MRRS
to 4000. As a work around, driver to restricts the MRRS to 2048 for
this particular 5762 NX1 card.

Signed-off-by: Siva Reddy Kallam <siva.kallam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-27 11:08:56 -05:00
Siva Reddy Kallam
5a8bae9761 tg3: Update copyright
Signed-off-by: Siva Reddy Kallam <siva.kallam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-27 11:08:46 -05:00
Fugang Duan
178e5f57a8 net: fec: unmap the xmit buffer that are not transferred by DMA
The enet IP only support 32 bit, it will use swiotlb buffer to do dma
mapping when xmit buffer DMA memory address is bigger than 4G in i.MX
platform. After stress suspend/resume test, it will print out:

log:
[12826.352864] fec 5b040000.ethernet: swiotlb buffer is full (sz: 191 bytes)
[12826.359676] DMA: Out of SW-IOMMU space for 191 bytes at device 5b040000.ethernet
[12826.367110] fec 5b040000.ethernet eth0: Tx DMA memory map failed

The issue is that the ready xmit buffers that are dma mapped but DMA still
don't copy them into fifo, once MAC restart, these DMA buffers are not unmapped.
So it should check the dma mapping buffer and unmap them.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-27 10:55:55 -05:00
Grygorii Strashko
c1a8d0a3ac net: phy: micrel: ksz9031: reconfigure autoneg after phy autoneg workaround
Under some circumstances driver will perform PHY reset in
ksz9031_read_status() to fix autoneg failure case (idle error count =
0xFF). When this happens ksz9031 will not detect link status change any
more when connecting to Netgear 1G switch (link can be recovered sometimes by
restarting netdevice "ifconfig down up"). Reproduced with TI am572x board
equipped with ksz9031 PHY while connecting to Netgear 1G switch.

Fix the issue by reconfiguring autonegotiation after PHY reset in
ksz9031_read_status().

Fixes: d2fd719bcb ("net/phy: micrel: Add workaround for bad autoneg")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-26 12:26:43 -05:00
Russell King
74ee0e8c1b phylink: ensure AN is enabled
Ensure that we mark AN as enabled at boot time, rather than leaving
it disabled.  This is noticable if your SFP module is fiber, and
it supports faster speeds than 1G with 2.5G support in place.

Fixes: 9525ae8395 ("phylink: add phylink infrastructure")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-25 21:47:20 -05:00
Russell King
182088aa3c phylink: ensure the PHY interface mode is appropriately set
When setting the ethtool settings, ensure that the validated PHY
interface mode is propagated to the current link settings, so that
2500BaseX can be selected.

Fixes: 9525ae8395 ("phylink: add phylink infrastructure")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-25 21:47:19 -05:00
Majd Dibbiny
71a0ff65a2 IB/mlx5: Fix congestion counters in LAG mode
Congestion counters are counted and queried per physical function.
When working in LAG mode, CNP packets can be sent or received on both
of the functions, thus congestion counters should be aggregated from
the two physical functions.

Fixes: e1f24a79f4 ("IB/mlx5: Support congestion related counters")
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Aviv Heller <avivh@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-12-21 16:06:07 -07:00
David S. Miller
932f8c77a9 mlx5-fixes-2017-12-19
Misc fixes for mlx5 core and mlx5 netdev driver.
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Merge tag 'mlx5-fixes-2017-12-19' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

===================
Mellanox, mlx5 fixes 2017-12-19

The follwoing series includes some fixes for mlx5 core and etherent
driver.

Please pull and let me know if there is any problem.

This series doesn't introduce any conflict with the ongoing mlx5 for-next
submission.

For -stable:

kernels >= v4.7.y
    ("net/mlx5e: Fix possible deadlock of VXLAN lock")
    ("net/mlx5e: Add refcount to VXLAN structure")
    ("net/mlx5e: Prevent possible races in VXLAN control flow")
    ("net/mlx5e: Fix features check of IPv6 traffic")

kernels >= v4.9.y
    ("net/mlx5: Fix error flow in CREATE_QP command")
    ("net/mlx5: Fix rate limit packet pacing naming and struct")

kernels >= v4.13.y
    ("net/mlx5: FPGA, return -EINVAL if size is zero")

kernels >= v4.14.y
    ("Revert "mlx5: move affinity hints assignments to generic code")

All above patches apply and compile with no issues on corresponding -stable.
===================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-20 13:41:05 -05:00
Jakub Kicinski
d3f89b98e3 nfp: bpf: keep track of the offloaded program
After TC offloads were converted to callbacks we have no choice
but keep track of the offloaded filter in the driver.

The check for nn->dp.bpf_offload_xdp was a stop gap solution
to make sure failed TC offload won't disable XDP, it's no longer
necessary.  nfp_net_bpf_offload() will return -EBUSY on
TC vs XDP conflicts.

Fixes: 3f7889c4c7 ("net: sched: cls_bpf: call block callbacks for offload")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-20 13:08:18 -05:00
Jakub Kicinski
102740bd94 cls_bpf: fix offload assumptions after callback conversion
cls_bpf used to take care of tracking what offload state a filter
is in, i.e. it would track if offload request succeeded or not.
This information would then be used to issue correct requests to
the driver, e.g. requests for statistics only on offloaded filters,
removing only filters which were offloaded, using add instead of
replace if previous filter was not added etc.

This tracking of offload state no longer functions with the new
callback infrastructure.  There could be multiple entities trying
to offload the same filter.

Throw out all the tracking and corresponding commands and simply
pass to the drivers both old and new bpf program.  Drivers will
have to deal with offload state tracking by themselves.

Fixes: 3f7889c4c7 ("net: sched: cls_bpf: call block callbacks for offload")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-20 13:08:18 -05:00
Yelena Krivosheev
2eecb2e04a net: mvneta: eliminate wrong call to handle rx descriptor error
There are few reasons in mvneta_rx_swbm() function when received packet
is dropped. mvneta_rx_error() should be called only if error bit [16]
is set in rx descriptor.

[gregory.clement@free-electrons.com: add fixes tag]
Cc: stable@vger.kernel.org
Fixes: dc35a10f68 ("net: mvneta: bm: add support for hardware buffer management")
Signed-off-by: Yelena Krivosheev <yelena@marvell.com>
Tested-by: Dmitri Epshtein <dima@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-20 12:24:12 -05:00
Yelena Krivosheev
ca5902a654 net: mvneta: use proper rxq_number in loop on rx queues
When adding the RX queue association with each CPU, a typo was made in
the mvneta_cleanup_rxqs() function. This patch fixes it.

[gregory.clement@free-electrons.com: add commit log and fixes tag]
Cc: stable@vger.kernel.org
Fixes: 2dcf75e279 ("net: mvneta: Associate RX queues with each CPU")
Signed-off-by: Yelena Krivosheev <yelena@marvell.com>
Tested-by: Dmitri Epshtein <dima@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-20 12:24:11 -05:00
Yelena Krivosheev
4423c18e46 net: mvneta: clear interface link status on port disable
When port connect to PHY in polling mode (with poll interval 1 sec),
port and phy link status must be synchronize in order don't loss link
change event.

[gregory.clement@free-electrons.com: add fixes tag]
Cc: <stable@vger.kernel.org>
Fixes: c5aff18204 ("net: mvneta: driver for Marvell Armada 370/XP network unit")
Signed-off-by: Yelena Krivosheev <yelena@marvell.com>
Tested-by: Dmitri Epshtein <dima@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-20 12:24:11 -05:00
Moshe Shemesh
a2fba188fd net/mlx5: Stay in polling mode when command EQ destroy fails
During unload, on mlx5_stop_eqs we move command interface from events
mode to polling mode, but if command interface EQ destroy fail we move
back to events mode.
That's wrong since even if we fail to destroy command interface EQ, we
do release its irq, so no interrupts will be received.

Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-19 23:24:05 +02:00
Moshe Shemesh
d6b2785cd5 net/mlx5: Cleanup IRQs in case of unload failure
When mlx5_stop_eqs fails to destroy any of the eqs it returns with an error.
In such failure flow the function will return without
releasing all EQs irqs and then pci_free_irq_vectors will fail.
Fix by only warn on destroy EQ failure and continue to release other
EQs and their irqs.

It fixes the following kernel trace:
kernel: kernel BUG at drivers/pci/msi.c:352!
...
...
kernel: Call Trace:
kernel: pci_disable_msix+0xd3/0x100
kernel: pci_free_irq_vectors+0xe/0x20
kernel: mlx5_load_one.isra.17+0x9f5/0xec0 [mlx5_core]

Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-19 23:24:05 +02:00
Maor Gottlieb
139ed6c6c4 net/mlx5: Fix steering memory leak
Flow steering priority and namespace are software only objects that
didn't have the proper destructors and were not freed during steering
cleanup.

Fix it by adding destructor functions for these objects.

Fixes: bd71b08ec2 ("net/mlx5: Support multiple updates of steering rules in parallel")
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-19 23:24:04 +02:00
Gal Pressman
0c1cc8b221 net/mlx5e: Prevent possible races in VXLAN control flow
When calling add/remove VXLAN port, a lock must be held in order to
prevent race scenarios when more than one add/remove happens at the
same time.
Fix by holding our state_lock (mutex) as done by all other parts of the
driver.
Note that the spinlock protecting the radix-tree is still needed in
order to synchronize radix-tree access from softirq context.

Fixes: b3f63c3d5e ("net/mlx5e: Add netdev support for VXLAN tunneling")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-19 23:24:03 +02:00
Gal Pressman
23f4cc2cd9 net/mlx5e: Add refcount to VXLAN structure
A refcount mechanism must be implemented in order to prevent unwanted
scenarios such as:
- Open an IPv4 VXLAN interface
- Open an IPv6 VXLAN interface (different socket)
- Remove one of the interfaces

With current implementation, the UDP port will be removed from our VXLAN
database and turn off the offloads for the other interface, which is
still active.
The reference count mechanism will only allow UDP port removals once all
consumers are gone.

Fixes: b3f63c3d5e ("net/mlx5e: Add netdev support for VXLAN tunneling")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-19 23:24:03 +02:00
Gal Pressman
6323514116 net/mlx5e: Fix possible deadlock of VXLAN lock
mlx5e_vxlan_lookup_port is called both from mlx5e_add_vxlan_port (user
context) and mlx5e_features_check (softirq), but the lock acquired does
not disable bottom half and might result in deadlock. Fix it by simply
replacing spin_lock() with spin_lock_bh().
While at it, replace all unnecessary spin_lock_irq() to spin_lock_bh().

lockdep's WARNING: inconsistent lock state
[  654.028136] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[  654.028229] swapper/5/0 [HC0[0]:SC1[9]:HE1:SE0] takes:
[  654.028321]  (&(&vxlan_db->lock)->rlock){+.?.}, at: [<ffffffffa06e7f0e>] mlx5e_vxlan_lookup_port+0x1e/0x50 [mlx5_core]
[  654.028528] {SOFTIRQ-ON-W} state was registered at:
[  654.028607]   _raw_spin_lock+0x3c/0x70
[  654.028689]   mlx5e_vxlan_lookup_port+0x1e/0x50 [mlx5_core]
[  654.028794]   mlx5e_vxlan_add_port+0x2e/0x120 [mlx5_core]
[  654.028878]   process_one_work+0x1e9/0x640
[  654.028942]   worker_thread+0x4a/0x3f0
[  654.029002]   kthread+0x141/0x180
[  654.029056]   ret_from_fork+0x24/0x30
[  654.029114] irq event stamp: 579088
[  654.029174] hardirqs last  enabled at (579088): [<ffffffff818f475a>] ip6_finish_output2+0x49a/0x8c0
[  654.029309] hardirqs last disabled at (579087): [<ffffffff818f470e>] ip6_finish_output2+0x44e/0x8c0
[  654.029446] softirqs last  enabled at (579030): [<ffffffff810b3b3d>] irq_enter+0x6d/0x80
[  654.029567] softirqs last disabled at (579031): [<ffffffff810b3c05>] irq_exit+0xb5/0xc0
[  654.029684] other info that might help us debug this:
[  654.029781]  Possible unsafe locking scenario:

[  654.029868]        CPU0
[  654.029908]        ----
[  654.029947]   lock(&(&vxlan_db->lock)->rlock);
[  654.030045]   <Interrupt>
[  654.030090]     lock(&(&vxlan_db->lock)->rlock);
[  654.030162]
 *** DEADLOCK ***

Fixes: b3f63c3d5e ("net/mlx5e: Add netdev support for VXLAN tunneling")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-19 23:24:02 +02:00
Moni Shoua
dbff26e44d net/mlx5: Fix error flow in CREATE_QP command
In error flow, when DESTROY_QP command should be executed, the wrong
mailbox was set with data, not the one that is written to hardware,
Fix that.

Fixes: 09a7d9eca1 '{net,IB}/mlx5: QP/XRCD commands via mlx5 ifc'
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-19 23:24:02 +02:00
Eugenia Emantayev
777ec2b2a3 net/mlx5: Fix misspelling in the error message and comment
Fix misspelling in word syndrome.

Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-12-19 23:24:01 +02:00