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Chen-Yu Tsai a6fe692e6e dt-bindings: net: dwmac-sun8i: simplify description of syscon property
The syscon property is used to point to the device that holds the glue
layer control register known as the "EMAC (or GMAC) clock register".

We do not need to explicitly list what compatible strings are needed, as
this information is readily available in the user manuals. Also the
"syscon" device type is more of an implementation detail. There are many
ways to access a register not in a device's address range, the syscon
interface being the most generic and unrestricted one.

Simplify the description so that it says what it is supposed to
describe.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-14 15:06:53 -04:00
Chen-Yu Tsai 9ed3fec3c3 dt-bindings: net: dwmac-sun8i: Sort syscon compatibles by alphabetical order
The A83T syscon compatible was appended to the syscon compatibles list,
instead of inserted in to preserve the ordering.

Move it to the proper place to keep the list sorted.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-14 15:06:53 -04:00
Chen-Yu Tsai a4a78a97ee dt-bindings: net: dwmac-sun8i: Clean up clock delay chain descriptions
The clock delay chains found in the glue layer for dwmac-sun8i are only
used with RGMII PHYs. They are not intended for non-RGMII PHYs, such as
MII external PHYs or the internal PHY. Also, a recent SoC has a smaller
range of possible values for the delay chain.

This patch reformats the delay chain section of the device tree binding
to make it clear that the delay chains only apply to RGMII PHYs, and
make it easier to add the R40-specific bits later.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-14 15:06:53 -04:00
David S. Miller 62150dfefc Merge branch 'dsa-mv88e6xxx-remove-Global-1-setup'
Vivien Didelot says:

====================
net: dsa: mv88e6xxx: remove Global 1 setup

The mv88e6xxx driver is still writing arbitrary registers at setup time,
e.g. priority override bits. Add ops for them and provide specific setup
functions for priority and stats before getting rid of the erroneous
mv88e6xxx_g1_setup code, as previously done with Global 2.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-14 14:49:40 -04:00
Vivien Didelot 447b1bb84b net: dsa: mv88e6xxx: add a stats setup function
Now that the Global 1 specific setup function only setup the statistics
unit, kill it in favor of a mv88e6xxx_stats_setup function.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-14 14:49:40 -04:00
Vivien Didelot 93e18d61bf net: dsa: mv88e6xxx: add IEEE and IP mapping ops
All Marvell switch families except 88E6390 have direct registers in
Global 1 for IEEE and IP priorities override mapping. The 88E6390 uses
indirect tables instead.

Add .ieee_pri_map and .ip_pri_map ops to distinct that and call them
from a mv88e6xxx_pri_setup helper. Only non-6390 are concerned ATM.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-14 14:49:40 -04:00
Vivien Didelot 408d2debb0 net: dsa: mv88e6xxx: use helper for 6390 histogram
The Marvell 88E6390 model has its histogram mode bits moved in the
Global 1 Control 2 register. Use the previously introduced
mv88e6xxx_g1_ctl2_mask helper to set them.

At the same time complete the documentation of the said register.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-14 14:49:39 -04:00
David S. Miller 23548dab56 Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2018-05-14

This series contains updates to virtchnl, i40e and i40evf.

Bruce cleans up whitespace and unnecessary parentheses in virtchnl.

Jake does a number of stat cleanups in the i40e driver, including
cleanup of code indentation, whitespace issues, remove duplicate stats,
fix grammar in code comment and general spring cleaning of the
statistics code.

Patryk fixes an issue where we recalculate vectors left and vectors
wanted but do not take into account the reduced number of queue pairs
per VSI.

Harshitha adds tx_busy stat to ethtool stats to track the number of
times we return NETDEV_TX_BUSY to the stack during transmit.

Paweł fixes a potential system crash when unloading the VF driver after
a hardware reset.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-14 14:28:59 -04:00
David S. Miller 42b956fdc8 Merge branch 'kernel-add-support-to-collect-hardware-logs-in-crash-recovery-kernel'
Rahul Lakkireddy says:

====================
kernel: add support to collect hardware logs in crash recovery kernel

On production servers running variety of workloads over time, kernel
panic can happen sporadically after days or even months. It is
important to collect as much debug logs as possible to root cause
and fix the problem, that may not be easy to reproduce. Snapshot of
underlying hardware/firmware state (like register dump, firmware
logs, adapter memory, etc.), at the time of kernel panic will be very
helpful while debugging the culprit device driver.

This series of patches add new generic framework that enable device
drivers to collect device specific snapshot of the hardware/firmware
state of the underlying device in the crash recovery kernel. In crash
recovery kernel, the collected logs are added as elf notes to
/proc/vmcore, which is copied by user space scripts for post-analysis.

The sequence of actions done by device drivers to append their device
specific hardware/firmware logs to /proc/vmcore are as follows:

1. During probe (before hardware is initialized), device drivers
register to the vmcore module (via vmcore_add_device_dump()), with
callback function, along with buffer size and log name needed for
firmware/hardware log collection.

2. vmcore module allocates the buffer with requested size. It adds
an elf note and invokes the device driver's registered callback
function.

3. Device driver collects all hardware/firmware logs into the buffer
and returns control back to vmcore module.

The device specific hardware/firmware logs can be seen as elf notes
with note type 0x700, as shown below:

Displaying notes found at file offset 0x00001000 with length 0x040032c0:
  Owner                 Data size	Description
  LINUX                0x02000fec	Unknown note type: (0x00000700)
  LINUX                0x02000fec	Unknown note type: (0x00000700)
  CORE                 0x00000150	NT_PRSTATUS (prstatus structure)
  CORE                 0x00000150	NT_PRSTATUS (prstatus structure)
  CORE                 0x00000150	NT_PRSTATUS (prstatus structure)
  CORE                 0x00000150	NT_PRSTATUS (prstatus structure)
  CORE                 0x00000150	NT_PRSTATUS (prstatus structure)
  CORE                 0x00000150	NT_PRSTATUS (prstatus structure)
  CORE                 0x00000150	NT_PRSTATUS (prstatus structure)
  CORE                 0x00000150	NT_PRSTATUS (prstatus structure)
  VMCOREINFO           0x00000785	Unknown note type: (0x00000000)

Patch 1 adds API to vmcore module to allow drivers to register callback
to collect the device specific hardware/firmware logs.  The logs will
be added to /proc/vmcore as elf notes.

Patch 2 updates read and mmap logic to append device specific hardware/
firmware logs as elf notes.

Patch 3 shows a cxgb4 driver example using the API to collect
hardware/firmware logs in crash recovery kernel, before hardware is
initialized.

Thanks,
Rahul

---
v8:
- Added missing linux/types.h header include.
- Removed __vmcore_add_device_dump().

v7:
- Removed "CHELSIO" vendor identifier in Elf Note name. Instead,
  writing "LINUX".
- Moved vmcoredd_header to new file include/uapi/linux/vmcore.h
- Reworked vmcoredd_header to include Elf Note as part of the header
  itself.
- Removed vmcoredd_get_note_size().
- Renamed vmcoredd_write_note() to vmcoredd_write_header().
- Replaced all "unsigned long" with "unsigned int" for device dump
  size since max size of Elf Word is u32.

v6:
- Reworked device dump elf note name to contain vendor identifier.
- Added vmcoredd_header that precedes actual dump in the Elf Note.
- Device dump's name is moved inside vmcoredd_header.
- Added "CHELSIO" string as vendor identifier in the Elf Note name
  for cxgb4 device dumps.

v5:
- Removed enabling CONFIG_PROC_VMCORE_DEVICE_DUMP by default and
  updated help message.

v4:
- Made __vmcore_add_device_dump() static.
- Moved compile check to define vmcore_add_device_dump() to
  crash_dump.h to fix compilation when vmcore.c is not compiled in.
- Convert ---help--- to help in Kconfig as indicated by checkpatch.
- Rebased to tip.

v3:
- Dropped sysfs crashdd module.
- Exported dumps as elf notes. Suggested by Eric Biederman
  <ebiederm@xmission.com>.  Added as patch 2 in this version.
- Added CONFIG_PROC_VMCORE_DEVICE_DUMP to allow configuring device
  dump support.
- Moved logic related to adding dumps from crashdd to vmcore module.
- Rename all crashdd* to vmcoredd*.
- Updated comments.

v2:
- Added ABI Documentation for crashdd.
- Directly use octal permission instead of macro.

Changes since rfc v2:
- Moved exporting crashdd from procfs to sysfs. Suggested by
  Stephen Hemminger <stephen@networkplumber.org>
- Moved code from fs/proc/crashdd.c to fs/crashdd/ directory.
- Replaced all proc API with sysfs API and updated comments.
- Calling driver callback before creating the binary file under
  crashdd sysfs.
- Changed binary dump file permission from S_IRUSR to S_IRUGO.
- Changed module name from CRASH_DRIVER_DUMP to CRASH_DEVICE_DUMP.

rfc v2:
- Collecting logs in 2nd kernel instead of during kernel panic.
  Suggested by Eric Biederman <ebiederm@xmission.com>.
- Added new crashdd module that exports /proc/crashdd/ containing
  driver's registered hardware/firmware logs in patch 1.
- Replaced the API to allow drivers to register their hardware/firmware
  log collect routine in crash recovery kernel in patch 1.
- Updated patch 2 to use the new API in patch 1.
====================

Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-14 13:49:33 -04:00
Rahul Lakkireddy 1dde532dd0 cxgb4: collect hardware dump in second kernel
Register callback to collect hardware/firmware dumps in second kernel
before hardware/firmware is initialized. The dumps for each device
will be available as elf notes in /proc/vmcore in second kernel.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-14 13:46:05 -04:00
Rahul Lakkireddy 7efe48df8a vmcore: append device dumps to vmcore as elf notes
Update read and mmap logic to append device dumps as additional notes
before the other elf notes. We add device dumps before other elf notes
because the other elf notes may not fill the elf notes buffer
completely and we will end up with zero-filled data between the elf
notes and the device dumps. Tools will then try to decode this
zero-filled data as valid notes and we don't want that. Hence, adding
device dumps before the other elf notes ensure that zero-filled data
can be avoided. This also ensures that the device dumps and the
other elf notes can be properly mmaped at page aligned address.

Incorporate device dump size into the total vmcore size. Also update
offsets for other program headers after the device dumps are added.

Suggested-by: Eric Biederman <ebiederm@xmission.com>.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-14 13:46:04 -04:00
Rahul Lakkireddy 2724273e8f vmcore: add API to collect hardware dump in second kernel
The sequence of actions done by device drivers to append their device
specific hardware/firmware logs to /proc/vmcore are as follows:

1. During probe (before hardware is initialized), device drivers
register to the vmcore module (via vmcore_add_device_dump()), with
callback function, along with buffer size and log name needed for
firmware/hardware log collection.

2. vmcore module allocates the buffer with requested size. It adds
an Elf note and invokes the device driver's registered callback
function.

3. Device driver collects all hardware/firmware logs into the buffer
and returns control back to vmcore module.

Ensure that the device dump buffer size is always aligned to page size
so that it can be mmaped.

Also, rename alloc_elfnotes_buf() to vmcore_alloc_buf() to make it more
generic and reserve NT_VMCOREDD note type to indicate vmcore device
dump.

Suggested-by: Eric Biederman <ebiederm@xmission.com>.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-14 13:46:04 -04:00
Paweł Jabłoński 27392e5718 i40evf: Fix a hardware reset support in VF driver
This patch fixes a hardware reset support in VF driver.
It is needed because when a hardware reset is detected
adapter->state is in __I40EVF_RESETTING state before
i40evf_reset_task is called. Without this patch
unloading VF driver after a hardware reset ends
with a system crash.

Signed-off-by: Paweł Jabłoński <pawel.jablonski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-14 07:05:16 -07:00
Jacob Keller c79756cb5f i40e: free the skb after clearing the bitlock
In commit bbc4e7d273 ("i40e: fix race condition with PTP_TX_IN_PROGRESS
bits") we modified the code which handles Tx timestamps so that we would
clear the progress bit as soon as possible.

A later commit 0bc0706b46 ("i40e: check for Tx timestamp timeouts during
watchdog") introduced similar code for detecting and handling cleanup of
a blocked Tx timestamp. This code did not use the same pattern for cleaning
up the skb.

Update this code to wait to free the skb until after the bit lock is
free, by first setting the ptp_tx_skb to NULL and clearing the lock.

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>
2018-05-14 07:05:16 -07:00
Jacob Keller 9c0c3b83d3 i40e: cleanup wording in a header comment
Fix up the English in the header comment for i40e_ptp_tx_hang.

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>
2018-05-14 07:05:16 -07:00
Jacob Keller aa4a065403 i40evf: remove MAX_QUEUES and just use I40EVF_MAX_REQ_QUEUES
We don't really need to have separate definitions for MAX_QUEUES and
I40EVF_MAX_REQ_QUEUES, since we'll always be limited by how many queues
we request anyways. If we haven't enabled requesting the maximum number
of queues, there's no reason to have our call to alloc_etherdev_mq
actually pass the higher value, since we'd never enable those queues
anyways.

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>
2018-05-14 07:05:16 -07:00
Harshitha Ramamurthy 3f76d01f3e i40e: add tx_busy to ethtool stats
This patch adds the tx_busy stat to the ethtool stats. The tx_busy
stat tracks the number of times we return NETDEV_TX_BUSY to the stack
during transmit.

Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-14 07:05:16 -07:00
Patryk Małek ca12c9d421 i40e: Fix recalculation of MSI-X vectors for VMDq
This patch adds a recalculation of number of MSI-X
vectors for VMDq in the case where we have less
vectors available than we would want to reserve for
VMDq.

It fixes the issue where we recalculate vectors left
and vectors wanted but we didn't take into account
the reduced number of queue pairs per VSI.

Signed-off-by: Patryk Małek <patryk.malek@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-14 07:05:16 -07:00
Jacob Keller 132ee00eed i40e: cleanup whitespace for some ethtool stat definitions
A future patch is going to refactor some of the ethtool statistic code.
To keep the patches easy to review, cleanup some of the indentation used
for macro definitions first.

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>
2018-05-14 07:05:16 -07:00
Jacob Keller 7e20188176 i40e: remove duplicate pfc stats
The pfc related priority stats are already handled separately as these
stats are actually arrays of length I40E_MAX_USER_PRIORITY. Thus,
including them within i40e_gstrings_stats will just duplicate data.

Worse, the sizeof will be incorrect, as it will be the total size of the
stat arrays, which in this case is 8 * sizeof(u64), so we will only copy
the stat contents as if they were a u32.

Since we already correctly handle these stats else where, remove them
from the i40e_gstrings_stats.

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>
2018-05-14 07:05:16 -07:00
Jacob Keller 0ded9c61c1 i40e: calculate ethtool stats size in a separate function
Use a separate function to calculate the number of stats for
a particular device. This helps reduce the clutter in
i40e_get_sset_count().

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>
2018-05-14 07:05:16 -07:00
Jeff Kirsher e691b771aa i40evf: Fix client header define
Fix up the VF client header define, since it is the same as the PF
client header.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
2018-05-14 07:05:16 -07:00
Bruce Allan 0fccb85ad2 virtchnl: Whitespace and parenthesis cleanup
Clean up existing instances of unnecessary parentheses in if
statement and change order of conditionals to make it easier to read

The opening /* should be followed by a single space and the closing */
should be preceded with a single space.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-14 07:05:16 -07:00
Anders Roxell 289e1f4e9e net: ipv4: ipconfig: fix unused variable
When CONFIG_PROC_FS isn't set, variable ipconfig_dir isn't used.
net/ipv4/ipconfig.c:167:31: warning: ‘ipconfig_dir’ defined but not used [-Wunused-variable]
 static struct proc_dir_entry *ipconfig_dir;
                               ^~~~~~~~~~~~
Move the declaration of ipconfig_dir inside the CONFIG_PROC_FS ifdef to
fix the warning.

Fixes: c04d2cb200 ("ipconfig: Write NTP server IPs to /proc/net/ipconfig/ntp_servers")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-13 20:27:25 -04:00
David S. Miller b2d6cee117 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The bpf syscall and selftests conflicts were trivial
overlapping changes.

The r8169 change involved moving the added mdelay from 'net' into a
different function.

A TLS close bug fix overlapped with the splitting of the TLS state
into separate TX and RX parts.  I just expanded the tests in the bug
fix from "ctx->conf == X" into "ctx->tx_conf == X && ctx->rx_conf
== X".

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 20:53:22 -04:00
Linus Torvalds 4bc871984f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Verify lengths of keys provided by the user is AF_KEY, from Kevin
    Easton.

 2) Add device ID for BCM89610 PHY. Thanks to Bhadram Varka.

 3) Add Spectre guards to some ATM code, courtesy of Gustavo A. R.
    Silva.

 4) Fix infinite loop in NSH protocol code. To Eric Dumazet we are most
    grateful for this fix.

 5) Line up /proc/net/netlink headers properly. This fix from YU Bo, we
    do appreciate.

 6) Use after free in TLS code. Once again we are blessed by the
    honorable Eric Dumazet with this fix.

 7) Fix regression in TLS code causing stalls on partial TLS records.
    This fix is bestowed upon us by Andrew Tomt.

 8) Deal with too small MTUs properly in LLC code, another great gift
    from Eric Dumazet.

 9) Handle cached route flushing properly wrt. MTU locking in ipv4, to
    Hangbin Liu we give thanks for this.

10) Fix regression in SO_BINDTODEVIC handling wrt. UDP socket demux.
    Paolo Abeni, he gave us this.

11) Range check coalescing parameters in mlx4 driver, thank you Moshe
    Shemesh.

12) Some ipv6 ICMP error handling fixes in rxrpc, from our good brother
    David Howells.

13) Fix kexec on mlx5 by freeing IRQs in shutdown path. Daniel Juergens,
    you're the best!

14) Don't send bonding RLB updates to invalid MAC addresses. Debabrata
    Benerjee saved us!

15) Uh oh, we were leaking in udp_sendmsg and ping_v4_sendmsg. The ship
    is now water tight, thanks to Andrey Ignatov.

16) IPSEC memory leak in ixgbe from Colin Ian King, man we've got holes
    everywhere!

17) Fix error path in tcf_proto_create, Jiri Pirko what would we do
    without you!

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (92 commits)
  net sched actions: fix refcnt leak in skbmod
  net: sched: fix error path in tcf_proto_create() when modules are not configured
  net sched actions: fix invalid pointer dereferencing if skbedit flags missing
  ixgbe: fix memory leak on ipsec allocation
  ixgbevf: fix ixgbevf_xmit_frame()'s return type
  ixgbe: return error on unsupported SFP module when resetting
  ice: Set rq_last_status when cleaning rq
  ipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg
  mlxsw: core: Fix an error handling path in 'mlxsw_core_bus_device_register()'
  bonding: send learning packets for vlans on slave
  bonding: do not allow rlb updates to invalid mac
  net/mlx5e: Err if asked to offload TC match on frag being first
  net/mlx5: E-Switch, Include VF RDMA stats in vport statistics
  net/mlx5: Free IRQs in shutdown path
  rxrpc: Trace UDP transmission failure
  rxrpc: Add a tracepoint to log ICMP/ICMP6 and error messages
  rxrpc: Fix the min security level for kernel calls
  rxrpc: Fix error reception on AF_INET6 sockets
  rxrpc: Fix missing start of call timeout
  qed: fix spelling mistake: "taskelt" -> "tasklet"
  ...
2018-05-11 14:14:46 -07:00
Linus Torvalds a1f45efbb9 NFS client fixes for Linux 4.17-rc4
Bugfixes:
 - Fix a possible NFSoRDMA list corruption during recovery
 - Fix sunrpc tracepoint crashes
 
 Other change:
 - Update Trond's email in the MAINTAINERS file
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Merge tag 'nfs-for-4.17-2' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client fixes from Anna Schumaker:
 "These patches fix both a possible corruption during NFSoRDMA MR
  recovery, and a sunrpc tracepoint crash.

  Additionally, Trond has a new email address to put in the MAINTAINERS
  file"

* tag 'nfs-for-4.17-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  Change Trond's email address in MAINTAINERS
  sunrpc: Fix latency trace point crashes
  xprtrdma: Fix list corruption / DMAR errors during MR recovery
2018-05-11 13:56:43 -07:00
Roman Mashak a52956dfc5 net sched actions: fix refcnt leak in skbmod
When application fails to pass flags in netlink TLV when replacing
existing skbmod action, the kernel will leak refcnt:

$ tc actions get action skbmod index 1
total acts 0

        action order 0: skbmod pipe set smac 00:11:22:33:44:55
         index 1 ref 1 bind 0

For example, at this point a buggy application replaces the action with
index 1 with new smac 00:aa:22:33:44:55, it fails because of zero flags,
however refcnt gets bumped:

$ tc actions get actions skbmod index 1
total acts 0

        action order 0: skbmod pipe set smac 00:11:22:33:44:55
         index 1 ref 2 bind 0
$

Tha patch fixes this by calling tcf_idr_release() on existing actions.

Fixes: 86da71b573 ("net_sched: Introduce skbmod action")
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:37:03 -04:00
Linus Torvalds ac42803695 These patches fix two long-standing bugs in the DIO code path, one of
which is a crash trivially triggerable with splice().
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Merge tag 'ceph-for-4.17-rc5' of git://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "These patches fix two long-standing bugs in the DIO code path, one of
  which is a crash trivially triggerable with splice()"

* tag 'ceph-for-4.17-rc5' of git://github.com/ceph/ceph-client:
  ceph: fix iov_iter issues in ceph_direct_read_write()
  libceph: add osd_req_op_extent_osd_data_bvecs()
  ceph: fix rsize/wsize capping in ceph_direct_read_write()
2018-05-11 13:36:06 -07:00
Dan Murphy b753a9faaf net: phy: DP83TC811: Introduce support for the DP83TC811 phy
Add support for the DP83811 phy.

The DP83811 supports both rgmii and sgmii interfaces.
There are 2 part numbers for this the DP83TC811R does not
reliably support the SGMII interface but the DP83TC811S will.

There is not a way to differentiate these parts from the
hardware or register set.  So this is controlled via the DT
to indicate which phy mode is required.  Or the part can be
strapped to a certain interface.

Data sheet can be found here:
http://www.ti.com/product/DP83TC811S-Q1/description
http://www.ti.com/product/DP83TC811R-Q1/description

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:36:04 -04:00
Jiri Pirko d68d75fdc3 net: sched: fix error path in tcf_proto_create() when modules are not configured
In case modules are not configured, error out when tp->ops is null
and prevent later null pointer dereference.

Fixes: 33a48927c1 ("sched: push TC filter protocol creation into a separate function")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:34:38 -04:00
Linus Torvalds 3f5f8596ed Fixes for critical regressions and a build failure.
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Merge tag 'sh-for-4.17-fixes' of git://git.libc.org/linux-sh

Pull arch/sh fixes from Rich Felker:
 "Fixes for critical regressions and a build failure.

  The regressions were introduced in 4.15 and 4.17-rc1 and prevented
  booting on affected systems"

* tag 'sh-for-4.17-fixes' of git://git.libc.org/linux-sh:
  sh: switch to NO_BOOTMEM
  sh: mm: Fix unprotected access to struct device
  sh: fix build failure for J2 cpu with SMP disabled
2018-05-11 13:14:24 -07:00
Ganesh Goudar 443e2dab32 cxgb4: avoid schedule while atomic
do not sleep while adding or deleting udp tunnel.

Fixes: 846eac3fcc ("cxgb4: implement udp tunnel callbacks")
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:11:50 -04:00
Ganesh Goudar c50ae55e41 cxgb4: enable inner header checksum calculation
set cntrl bits to indicate whether inner header checksum
needs to be calculated whenever the packet is an encapsulated
packet and enable supported encap features.

Fixes: d0a1299c6b ("cxgb4: add support for vxlan segmentation offload")
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:11:50 -04:00
Arjun Vynipadath 0e249898ca cxgb4: Fix {vxlan/geneve}_port initialization
adapter->rawf_cnt was not initialized, thereby
ndo_udp_tunnel_{add/del} was returning immediately
without initializing {vxlan/geneve}_port.
Also initializes mps_encap_entry refcnt.

Fixes: 846eac3fcc ("cxgb4: implement udp tunnel callbacks")
Signed-off-by: Arjun Vynipadath <arjun@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:11:50 -04:00
Ganesh Goudar f4a313b971 cxgb4: Add new T5 device id
Add 0x50ad device id for new T5 card.

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:10:46 -04:00
Linus Torvalds 7404bc2773 arm64 fixes:
- Mitigate Spectre-v2 for NVIDIA Denver CPUs
 
 - Free memblocks corresponding to freed initrd area
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "There's a small memblock accounting problem when freeing the initrd
  and a Spectre-v2 mitigation for NVIDIA Denver CPUs which just requires
  a match on the CPU ID register.

  Summary:

   - Mitigate Spectre-v2 for NVIDIA Denver CPUs

   - Free memblocks corresponding to freed initrd area"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: capabilities: Add NVIDIA Denver CPU to bp_harden list
  arm64: Add MIDR encoding for NVIDIA CPUs
  arm64: To remove initrd reserved area entry from memblock
2018-05-11 13:09:04 -07:00
Tonghao Zhang 804c1466c7 net: doc: fix spelling mistake: "modrobe.d" -> "modprobe.d"
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:08:44 -04:00
Tonghao Zhang ae35c6f7a5 bonding: use the skb_get/set_queue_mapping
Use the skb_get_queue_mapping, skb_set_queue_mapping
and skb_rx_queue_recorded for skb queue_mapping in bonding
driver, but not use it directly.

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:08:44 -04:00
Tonghao Zhang dbdc8a2175 bonding: replace the return value type
The method ndo_start_xmit is defined as returning a
netdev_tx_t, which is a typedef for an enum type,
but the implementation in this driver returns an int.

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:08:44 -04:00
Linus Torvalds 5c6b54600d powerpc fixes for 4.17 #5
One fix for an actual regression, the change to the SYSCALL_DEFINE wrapper broke
 FTRACE_SYSCALLS for us due to a name mismatch. There's also another commit to
 the same code to make sure we match all our syscalls with various prefixes.
 
 And then just one minor build fix, and the removal of an unused variable that
 was removed and then snuck back in due to some rebasing.
 
 Thanks to:
   Naveen N. Rao.
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Merge tag 'powerpc-4.17-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "One fix for an actual regression, the change to the SYSCALL_DEFINE
  wrapper broke FTRACE_SYSCALLS for us due to a name mismatch. There's
  also another commit to the same code to make sure we match all our
  syscalls with various prefixes.

  And then just one minor build fix, and the removal of an unused
  variable that was removed and then snuck back in due to some rebasing.

  Thanks to: Naveen N. Rao"

* tag 'powerpc-4.17-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/pseries: Fix CONFIG_NUMA=n build
  powerpc/trace/syscalls: Update syscall name matching logic to account for ppc_ prefix
  powerpc/trace/syscalls: Update syscall name matching logic
  powerpc/64: Remove unused paca->soft_enabled
2018-05-11 13:07:22 -07:00
Linus Torvalds c110a8b792 Working on some new updates to trace filtering, I noticed that the
regex_match_front() test was updated to be limited to the size
 of the pattern instead of the full test string. But as the test string
 is not guaranteed to be nul terminated, it still needs to consider
 the size of the test string.
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Merge tag 'trace-v4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "Working on some new updates to trace filtering, I noticed that the
  regex_match_front() test was updated to be limited to the size of the
  pattern instead of the full test string.

  But as the test string is not guaranteed to be nul terminated, it
  still needs to consider the size of the test string"

* tag 'trace-v4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix regex_match_front() to not over compare the test string
2018-05-11 13:04:35 -07:00
William Tu d5db21a3e6 erspan: auto detect truncated ipv6 packets.
Currently the truncated bit is set only when 1) the mirrored packet
is larger than mtu and 2) the ipv4 packet tot_len is larger than
the actual skb->len.  This patch adds another case for detecting
whether ipv6 packet is truncated or not, by checking the ipv6 header
payload_len and the skb->len.

Reported-by: Xiaoyan Jin <xiaoyanj@vmware.com>
Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:03:49 -04:00
David S. Miller 755bbc1c00 Merge branch 'mlxsw-spectrum_span-Two-minor-adjustments'
Ido Schimmel says:

====================
mlxsw: spectrum_span: Two minor adjustments

Petr says:

This patch set fixes a couple of nits in mlxsw's SPAN implementation:
two counts of inaccurate variable name and one count of unsuitable error
code, fixed, respectively, in patches #1 and #2.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:01:25 -04:00
Petr Machata c41c0dd7a6 mlxsw: spectrum_span: Use a more fitting error code
ENOENT is suitable when an item is looked for in a collection and can't
be found. The failure here is actually a depletion of a resource, where
ENOBUFS is the more fitting error code.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:01:24 -04:00
Petr Machata fc74ecbc29 mlxsw: spectrum_span: Rename misnamed variable l3edev
Calling the variable l3edev was relevant when neighbor lookup was the
last stage in the simulated pipeline. Now that mlxsw handles bridges and
vlan devices as well, calling it "L3" is a misnomer.

Thus in mlxsw_sp_span_dmac(), rename to "dev", because that function is
just a service routine where the distinction between tunnel and egress
device isn't necessary.

In mlxsw_sp_span_entry_tunnel_parms_common(), rename to "edev" to
emphasize that the routine traces packet egress.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 16:01:24 -04:00
David S. Miller f4d641a228 Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2018-05-11

This series contains fixes to the ice, ixgbe and ixgbevf drivers.

Jeff Shaw provides a fix to ensure rq_last_status gets set, whether or
not the hardware responds with an error in the ice driver.

Emil adds a check for unsupported module during the reset routine for
ixgbe.

Luc Van Oostenryck fixes ixgbevf_xmit_frame() where it was not using the
correct return value (int).

Colin Ian King fixes a potential resource leak in ixgbe, where we were
not freeing ipsec in our cleanup path.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 15:57:23 -04:00
David S. Miller f01008916f RxRPC fixes
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Merge tag 'rxrpc-fixes-20180510' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

David Howells says:

====================
rxrpc: Fixes

Here are three fixes for AF_RXRPC and two tracepoints that were useful for
finding them:

 (1) Fix missing start of expect-Rx-by timeout on initial packet
     transmission so that calls will time out if the peer doesn't respond.

 (2) Fix error reception on AF_INET6 sockets by using the correct family of
     sockopts on the UDP transport socket.

 (3) Fix setting the minimum security level on kernel calls so that they
     can be encrypted.

 (4) Add a tracepoint to log ICMP/ICMP6 and other error reports from the
     transport socket.

 (5) Add a tracepoint to log UDP sendmsg failure so that we can find out if
     transmission failure occurred on the UDP socket.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 15:55:57 -04:00
Roman Mashak af5d01842f net sched actions: fix invalid pointer dereferencing if skbedit flags missing
When application fails to pass flags in netlink TLV for a new skbedit action,
the kernel results in the following oops:

[    8.307732] BUG: unable to handle kernel paging request at 0000000000021130
[    8.309167] PGD 80000000193d1067 P4D 80000000193d1067 PUD 180e0067 PMD 0
[    8.310595] Oops: 0000 [#1] SMP PTI
[    8.311334] Modules linked in: kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd cryptd glue_helper serio_raw
[    8.314190] CPU: 1 PID: 397 Comm: tc Not tainted 4.17.0-rc3+ #357
[    8.315252] RIP: 0010:__tcf_idr_release+0x33/0x140
[    8.316203] RSP: 0018:ffffa0718038f840 EFLAGS: 00010246
[    8.317123] RAX: 0000000000000001 RBX: 0000000000021100 RCX: 0000000000000000
[    8.319831] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000021100
[    8.321181] RBP: 0000000000000000 R08: 000000000004adf8 R09: 0000000000000122
[    8.322645] R10: 0000000000000000 R11: ffffffff9e5b01ed R12: 0000000000000000
[    8.324157] R13: ffffffff9e0d3cc0 R14: 0000000000000000 R15: 0000000000000000
[    8.325590] FS:  00007f591292e700(0000) GS:ffff8fcf5bc40000(0000) knlGS:0000000000000000
[    8.327001] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.327987] CR2: 0000000000021130 CR3: 00000000180e6004 CR4: 00000000001606a0
[    8.329289] Call Trace:
[    8.329735]  tcf_skbedit_init+0xa7/0xb0
[    8.330423]  tcf_action_init_1+0x362/0x410
[    8.331139]  ? try_to_wake_up+0x44/0x430
[    8.331817]  tcf_action_init+0x103/0x190
[    8.332511]  tc_ctl_action+0x11a/0x220
[    8.333174]  rtnetlink_rcv_msg+0x23d/0x2e0
[    8.333902]  ? _cond_resched+0x16/0x40
[    8.334569]  ? __kmalloc_node_track_caller+0x5b/0x2c0
[    8.335440]  ? rtnl_calcit.isra.31+0xf0/0xf0
[    8.336178]  netlink_rcv_skb+0xdb/0x110
[    8.336855]  netlink_unicast+0x167/0x220
[    8.337550]  netlink_sendmsg+0x2a7/0x390
[    8.338258]  sock_sendmsg+0x30/0x40
[    8.338865]  ___sys_sendmsg+0x2c5/0x2e0
[    8.339531]  ? pagecache_get_page+0x27/0x210
[    8.340271]  ? filemap_fault+0xa2/0x630
[    8.340943]  ? page_add_file_rmap+0x108/0x200
[    8.341732]  ? alloc_set_pte+0x2aa/0x530
[    8.342573]  ? finish_fault+0x4e/0x70
[    8.343332]  ? __handle_mm_fault+0xbc1/0x10d0
[    8.344337]  ? __sys_sendmsg+0x53/0x80
[    8.345040]  __sys_sendmsg+0x53/0x80
[    8.345678]  do_syscall_64+0x4f/0x100
[    8.346339]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[    8.347206] RIP: 0033:0x7f591191da67
[    8.347831] RSP: 002b:00007fff745abd48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[    8.349179] RAX: ffffffffffffffda RBX: 00007fff745abe70 RCX: 00007f591191da67
[    8.350431] RDX: 0000000000000000 RSI: 00007fff745abdc0 RDI: 0000000000000003
[    8.351659] RBP: 000000005af35251 R08: 0000000000000001 R09: 0000000000000000
[    8.352922] R10: 00000000000005f1 R11: 0000000000000246 R12: 0000000000000000
[    8.354183] R13: 00007fff745afed0 R14: 0000000000000001 R15: 00000000006767c0
[    8.355400] Code: 41 89 d4 53 89 f5 48 89 fb e8 aa 20 fd ff 85 c0 0f 84 ed 00
00 00 48 85 db 0f 84 cf 00 00 00 40 84 ed 0f 85 cd 00 00 00 45 84 e4 <8b> 53 30
74 0d 85 d2 b8 ff ff ff ff 0f 8f b3 00 00 00 8b 43 2c
[    8.358699] RIP: __tcf_idr_release+0x33/0x140 RSP: ffffa0718038f840
[    8.359770] CR2: 0000000000021130
[    8.360438] ---[ end trace 60c66be45dfc14f0 ]---

The caller calls action's ->init() and passes pointer to "struct tc_action *a",
which later may be initialized to point at the existing action, otherwise
"struct tc_action *a" is still invalid, and therefore dereferencing it is an
error as happens in tcf_idr_release, where refcnt is decremented.

So in case of missing flags tcf_idr_release must be called only for
existing actions.

v2:
    - prepare patch for net tree

Fixes: 5e1567aeb7 ("net sched: skbedit action fix late binding")
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-11 15:52:43 -04:00
Linus Torvalds 84c3a0979c xen: fix for 4.17-rc5
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Merge tag 'for-linus-4.17-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fix from Juergen Gross:
 "One fix for the kernel running as a fully virtualized guest using PV
  drivers on old Xen hypervisor versions"

* tag 'for-linus-4.17-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/xen: Reset VCPU0 info pointer after shared_info remap
2018-05-11 12:30:34 -07:00