sfrench/cifs-2.6.git
5 years agoIB/mlx5: Support RAW Ethernet when RoCE is disabled
Or Gerlitz [Sun, 27 Nov 2016 14:51:36 +0000 (16:51 +0200)]
IB/mlx5: Support RAW Ethernet when RoCE is disabled

On some environments, such as certain SRIOV VF configurations, RoCE is
not supported for mlx5 Ethernet ports. Currently, the driver will not
open IB device on that port.

This is problematic, since we do want user-space RAW Ethernet (RAW_PACKET
QPs) functionality to remain in place. For that end, enhance the relevant
driver flows such that we do create a device instance in that case.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Rename RoCE related helpers to reflect being Eth ones
Or Gerlitz [Sun, 27 Nov 2016 14:51:35 +0000 (16:51 +0200)]
IB/mlx5: Rename RoCE related helpers to reflect being Eth ones

This is a pre-step towards having mlx5 IB device also over Eth ports where
RoCE is not supported. We change the roce enable/disable and roce_lag
init/fini function names to have _eth instead of _roce.

This patch doesn't change any functionality.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Refactor registration to netdev notifier
Or Gerlitz [Sun, 27 Nov 2016 14:51:34 +0000 (16:51 +0200)]
IB/mlx5: Refactor registration to netdev notifier

Refactor the netdev notifier registration into a small helper function.

This is a pre-step towards having mlx5 IB device over an Ethernet port
which doesn't support RoCE. Also, renamed the de-registration helper
and the new helper as netdev notifier and not roce, to make it clear
this is not only used with roce.

This patch doesn't change any functionality.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Use u64 for UMR length
Maor Gottlieb [Sun, 27 Nov 2016 13:18:22 +0000 (15:18 +0200)]
IB/mlx5: Use u64 for UMR length

The fast_registration length is used to convey length for memory
registrations through UMR which can be of any size up to 2^64.

Change the length type to be u64.

Fixes: 968e78dd9644 ('IB/mlx5: Enhance UMR support to allow partial page table update')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Avoid system crash when enabling many VFs
Eli Cohen [Sun, 27 Nov 2016 13:18:21 +0000 (15:18 +0200)]
IB/mlx5: Avoid system crash when enabling many VFs

When enabling many VFs, the total amount of DMA mappings increase
significantly. This causes DMA allocations to take a lot of time
since they are serialized in the kernel.

As a result the driver enters into fatal condition due to
timeout and the system hangs. To recover from this we disable
MR cache for VFs.

PFs will still have a full cache and VFs cache can be manipulated
as usual after driver load.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Assign SRQ type earlier
Maor Gottlieb [Sun, 27 Nov 2016 13:18:20 +0000 (15:18 +0200)]
IB/mlx5: Assign SRQ type earlier

Move the SRQ type assignment to be before actually using it
in create_srq_user() and in create_srq_kernel() functions.

Fixes: af1ba291c5e4 ('{net, IB}/mlx5: Refactor internal SRQ API')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx4: Fix out-of-range array index in destroy qp flow
Jack Morgenstein [Sun, 27 Nov 2016 13:18:19 +0000 (15:18 +0200)]
IB/mlx4: Fix out-of-range array index in destroy qp flow

For non-special QPs, the port value becomes non-zero only at the
RESET-to-INIT transition. If the QP has not undergone that transition,
its port number value is still zero.

If such a QP is destroyed before being moved out of the RESET state,
subtracting one from the qp port number results in a negative value.
Using that negative value as an index into the qp1_proxy array
results in an out-of-bounds array reference.

Fix this by testing that the QP type is one that uses qp1_proxy before
using the port number. For special QPs of all types, the port number is
specified at QP creation time.

Fixes: 9433c188915c ("IB/mlx4: Invoke UPDATE_QP for proxy QP1 on MAC changes")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Make create/destroy_ah available to userspace
Moni Shoua [Wed, 23 Nov 2016 06:23:26 +0000 (08:23 +0200)]
IB/mlx5: Make create/destroy_ah available to userspace

Advertise that create_ah and destroy_ah verbs are accessible from
uverbs interface.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Use kernel driver to help userspace create ah
Moni Shoua [Wed, 23 Nov 2016 06:23:25 +0000 (08:23 +0200)]
IB/mlx5: Use kernel driver to help userspace create ah

Resolving a MAC address for a given IP address in userspace is inefficient.
This patch lets mlx5 user driver using the kernel driver to resolve the mac
and get the answer in the private section of the response.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/core: Let create_ah return extended response to user
Moni Shoua [Wed, 23 Nov 2016 06:23:24 +0000 (08:23 +0200)]
IB/core: Let create_ah return extended response to user

Add struct ib_udata to the signature of create_ah callback that is
implemented by IB device drivers. This allows HW drivers to return extra
data to the userspace library.
This patch prepares the ground for mlx5 driver to resolve destination
mac address for a given GID and return it to userspace.
This patch was previously submitted by Knut Omang as a part of the
patch set to support Oracle's Infiniband HCA (SIF).

Signed-off-by: Knut Omang <knut.omang@oracle.com>
Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Report that device has udata response in create_ah
Moni Shoua [Wed, 23 Nov 2016 06:23:23 +0000 (08:23 +0200)]
IB/mlx5: Report that device has udata response in create_ah

To make mlx5 user driver aware of whether kernel driver returns dmac
in user data response add a new flag that will be returned back to
user-space through alloc_ucontext.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/core: Change ib_resolve_eth_dmac to use it in create AH
Moni Shoua [Wed, 23 Nov 2016 06:23:22 +0000 (08:23 +0200)]
IB/core: Change ib_resolve_eth_dmac to use it in create AH

The function ib_resolve_eth_dmac() requires struct qp_attr * and
qp_attr_mask as parameters while the function might be useful to resolve
dmac for address handles. This patch changes the signature of the
function so it can be used in the flow of creating an address handle.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Add support to match inner packet fields
Moses Reuben [Mon, 14 Nov 2016 17:04:52 +0000 (19:04 +0200)]
IB/mlx5: Add support to match inner packet fields

Add support to match packet fields which are tunneled,
i.e. support matching the header of the inner packet which is the result of
or bit operation of the original header and the IB_FLOW_SPEC_INNER type.

The combination of IB_FLOW_SPEC_INNER | IB_FLOW_SPEC_VXLAN_TUNNEL is not
needed to be checked, because the IB core has this check already.

Signed-off-by: Moses Reuben <mosesr@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/core: Introduce inner flow steering
Moses Reuben [Mon, 14 Nov 2016 17:04:51 +0000 (19:04 +0200)]
IB/core: Introduce inner flow steering

For a tunneled packet which contains external and internal headers,
we refer to the external headers as "outer fields" and the internal
headers as "inner fields".

Example of a tunneled packet:

{ L2 | L3 | L4 | tunnel header | L2 | L3 | l4 | data }
  |     |    |         |         |    |    |
{       outer fields           }{ inner fields }

This patch introduces a new flag for flow steering rules
- IB_FLOW_SPEC_INNER - which specifies that the rule applies
to the inner fields, rather than to the outer fields of the packet.

Signed-off-by: Moses Reuben <mosesr@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Support Vxlan tunneling specification
Moses Reuben [Mon, 14 Nov 2016 17:04:50 +0000 (19:04 +0200)]
IB/mlx5: Support Vxlan tunneling specification

Add support to receive specific Vxlan packet in ConnectX-4.

Signed-off-by: Moses Reuben <mosesr@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/uverbs: Add support for Vxlan protocol
Moses Reuben [Mon, 14 Nov 2016 17:04:49 +0000 (19:04 +0200)]
IB/uverbs: Add support for Vxlan protocol

Add ib_uverbs_flow_spec_tunnel to define the rule to match Vxlan,
the type, size, reserved fields are identical to rest of the protocols,
and are used to identify the spec.
The tunnel id is the vni value of the Vxlan protocol, and it is used
as part of the steering rule, it is limited by the mask.
The steering rule configured on the hardware does a match
according to vni and other protocols.
In the same way as rest of the protocols that we match,
the uniq field's of each protocol are represented on
the val and the mask.

Signed-off-by: Moses Reuben <mosesr@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/core: Align structure ib_flow_spec_type
Moses Reuben [Mon, 14 Nov 2016 17:04:48 +0000 (19:04 +0200)]
IB/core: Align structure ib_flow_spec_type

Aligned the structure ib_flow_spec_type indentation,
after adding a new definition.

Signed-off-by: Moses Reuben <mosesr@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/core: Add flow spec tunneling support
Moses Reuben [Mon, 14 Nov 2016 17:04:47 +0000 (19:04 +0200)]
IB/core: Add flow spec tunneling support

In order to support tunneling, that can be used by the QP,
both struct ib_flow_spec_tunnel and struct ib_flow_tunnel_filter can be
used to more IP or UDP based tunneling protocols (e.g NVGRE, GRE, etc).

IB_FLOW_SPEC_VXLAN_TUNNEL type flow specification is added to use this
functionality and match specific Vxlan packets.

In similar to IPv6, we check overflow of the vni value by
comparing with the maximum size.

Signed-off-by: Moses Reuben <mosesr@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Add support for CQE compressing
Bodong Wang [Mon, 31 Oct 2016 10:16:45 +0000 (12:16 +0200)]
IB/mlx5: Add support for CQE compressing

CQE compressing reduces PCI overhead by coalescing and compressing
multiple CQEs into a single merged CQE. Successful compressing
improves message rate especially for small packet traffic.

CQE compressing is supported for all 64B CQE formats (with certain
limitations) generated by RQ/Responder or by SQ/Requestor.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Report mlx5 CQE compression caps during query
Bodong Wang [Mon, 31 Oct 2016 10:16:44 +0000 (12:16 +0200)]
IB/mlx5: Report mlx5 CQE compression caps during query

The capabilities include:
- Max number of compressed and aggregated CQEs in a single session,
  while zero means unsupported.
- For Responder, there are two formats of mini CQE: mini CQE with Rx
  hash and mini CQE with checksum. They're mutual exclusive.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Report mlx5 multi packet WQE caps during query
Bodong Wang [Mon, 31 Oct 2016 10:15:21 +0000 (12:15 +0200)]
IB/mlx5: Report mlx5 multi packet WQE caps during query

The capabilities whether hardware support multi packet WQE or not is
exposed to user space through query_device by uhw.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agonet/mlx5: Report multi packet WQE capabilities
Leon Romanovsky [Mon, 31 Oct 2016 10:15:20 +0000 (12:15 +0200)]
net/mlx5: Report multi packet WQE capabilities

Multi packet WQE enables sending multiple fix sized packets
using a single WQE. The exposed field reports such HW support.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/rxe: Increase max number of completions to 32k
Yonatan Cohen [Wed, 16 Nov 2016 08:39:16 +0000 (10:39 +0200)]
IB/rxe: Increase max number of completions to 32k

Increase limit of max CQE from 8K to 32K to allow demanding
applications to work over SoftRoCE with same configuration
as most RoCEv2 HW vendors have.

Fixes: 8700e3e7c485 ("Soft RoCE driver")
Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>
Reviewed-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx4: Check if GRH is available before using it
Eran Ben Elisha [Thu, 10 Nov 2016 09:31:01 +0000 (11:31 +0200)]
IB/mlx4: Check if GRH is available before using it

Before reading GRH attributes, need to make sure AH contains GRH,
and in addition, initialize GID type.

Fixes: dbf727de7440 ('IB/core: Use GID table in AH creation and dmac resolution')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx4: When no DMFS for IPoIB, don't allow NET_IF QPs
Eran Ben Elisha [Thu, 10 Nov 2016 09:31:00 +0000 (11:31 +0200)]
IB/mlx4: When no DMFS for IPoIB, don't allow NET_IF QPs

According to the firmware spec, FLOW_STEERING_IB_UC_QP_RANGE command is
supported only if dmfs_ipoib bit is set.

If it isn't set we want to ensure allocating NET_IF QPs fail. We do so
by filling out the allocation bitmap. By thus, the NET_IF QPs allocating
function won't find any free QP and will fail.

Fixes: c1c98501121e ('IB/mlx4: Add support for steerable IB UD QPs')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx4: Fix port query for 56Gb Ethernet links
Saeed Mahameed [Thu, 10 Nov 2016 09:30:59 +0000 (11:30 +0200)]
IB/mlx4: Fix port query for 56Gb Ethernet links

Report the correct speed in the port attributes when using a 56Gbps
ethernet link.  Without this change the field is incorrectly set to 10.

Fixes: a9c766bb75ee ('IB/mlx4: Fix info returned when querying IBoE ports')
Fixes: 2e96691c31ec ('IB: Use central enum for speed instead of hard-coded values')
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx4: Put non zero value in max_ah device attribute
Maor Gottlieb [Thu, 10 Nov 2016 09:30:58 +0000 (11:30 +0200)]
IB/mlx4: Put non zero value in max_ah device attribute

Use INT_MAX since this is the max value the attribute can hold, though
hardware capability is unlimited.

Fixes: 225c7b1feef1 ('IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx4: Handle well-known-gid in mad_demux processing
Jack Morgenstein [Thu, 10 Nov 2016 09:30:57 +0000 (11:30 +0200)]
IB/mlx4: Handle well-known-gid in mad_demux processing

If OpenSM runs over a ConnectX-3, and there are ConnectX-4 or Connect-IB
VFs active on the network, the OpenSM will receive QP1 packets containing
a GRH where the destination GID is the "Well-Known GID" -- which is not a
GID in the HCA Port's GID Table.

This GID must be tested-for separately -- and packets which contain
this destination GID should be routed to slave 0 (the PF).

Fixes: 37bfc7c1e83f ('IB/mlx4: SR-IOV multiplex and demultiplex MADs')
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx4: Handle IPv4 header when demultiplexing MAD
Moni Shoua [Thu, 10 Nov 2016 09:30:56 +0000 (11:30 +0200)]
IB/mlx4: Handle IPv4 header when demultiplexing MAD

When MAD arrives to the hypervisor, we need to identify which slave it
should be sent by destination GID. When L3 protocol is IPv4 the
GRH is replaced by an IPv4 header. This patch detects when IPv4 header
needs to be parsed instead of GRH.

Fixes: b6ffaeffaea4 ('mlx4: In RoCE allow guests to have multiple GIDS')
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx4: Set traffic class in AH
Maor Gottlieb [Thu, 10 Nov 2016 09:30:53 +0000 (11:30 +0200)]
IB/mlx4: Set traffic class in AH

Set traffic class within sl_tclass_flowlabel when create iboe AH.
Without this the TOS value will be empty when running VLAN tagged
traffic, because the TOS value is taken from the traffic class in the
address handle attributes.

Fixes: 9106c4106974 ('IB/mlx4: Fix SL to 802.1Q priority-bits mapping for IBoE')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/IPoIB: Remove can't use GFP_NOIO warning
Kamal Heib [Thu, 10 Nov 2016 08:16:48 +0000 (10:16 +0200)]
IB/IPoIB: Remove can't use GFP_NOIO warning

Remove the warning print of "can't use of GFP_NOIO" to avoid prints in
each QP creation when devices aren't supporting IB_QP_CREATE_USE_GFP_NOIO.

This print become more annoying when the IPoIB interface is configured
to work in connected mode.

Fixes: 09b93088d750 ('IB: Add a QP creation flag to use GFP_NOIO allocations')
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Limit mkey page size to 2GB
Majd Dibbiny [Thu, 27 Oct 2016 13:36:47 +0000 (16:36 +0300)]
IB/mlx5: Limit mkey page size to 2GB

The maximum page size in the mkey context is 2GB.

Until today, we didn't enforce this requirement in the code,
and therefore, if we got a page size larger than 2GB, we
have passed zeros in the log_page_shift instead of the actual value
and the registration failed.

This patch limits the driver to use compound pages of 2GB for mkeys.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Fix reported max SGE calculation
Eli Cohen [Thu, 27 Oct 2016 13:36:45 +0000 (16:36 +0300)]
IB/mlx5: Fix reported max SGE calculation

Add the 512 bytes limit of RDMA READ and the size of remote
address to the max SGE calculation.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Wait for all async command completions to complete
Eli Cohen [Thu, 27 Oct 2016 13:36:43 +0000 (16:36 +0300)]
IB/mlx5: Wait for all async command completions to complete

Wait before continuing unload till all pending mkey async creation requests
are done.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Put non zero value in max_ah
Maor Gottlieb [Thu, 27 Oct 2016 13:36:38 +0000 (16:36 +0300)]
IB/mlx5: Put non zero value in max_ah

We put INT_MAX since this is the max value that can be held.
Though there is no hardware limitation, this is practically
a large enough number so we can use it.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Fix atomic cap in indirect UMR
Maor Gottlieb [Thu, 27 Oct 2016 13:36:37 +0000 (16:36 +0300)]
IB/mlx5: Fix atomic cap in indirect UMR

Remove from the driver the limitation imposed by firmware check
to not allow change of atomic permissions for indirect UMRs.
In order to avoid failures on old firmware, we only ask for change
of atomic permissions if atomic operations are supported.

Fixes: 968e78dd9644 ('IB/mlx5: Enhance UMR support to allow partial page table update')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/mlx5: Replace numerical constant with predefined MACRO
Max Gurtovoy [Thu, 27 Oct 2016 13:36:36 +0000 (16:36 +0300)]
IB/mlx5: Replace numerical constant with predefined MACRO

Replace the pre-defined macro signifying inline umr instead
of the numerical constant.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agoIB/core: Save QP in ib_flow structure
Mark Bloch [Thu, 27 Oct 2016 13:36:30 +0000 (16:36 +0300)]
IB/core: Save QP in ib_flow structure

When we create flow steering rule, we need to save the related QP in the
ib_flow struct. this QP is used in destroy flow.

Move the QP assignment from ib_uverbs_ex_create_flow into ib_create_flow,
this would allow both kernel and userspace consumers to use it.

This bug wasn't seen in the wild because there are no kernel consumers
currently in the kernel.

Fixes: 319a441d1361 ("IB/core: Add receive flow steering support")
Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
5 years agonet/mlx5e: Add tc support for FWD rule with counter
Mark Bloch [Tue, 20 Sep 2016 07:58:29 +0000 (07:58 +0000)]
net/mlx5e: Add tc support for FWD rule with counter

When creating a FWD rule using tc create also a HW counter
for this rule.

Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Add option to add fwd rule with counter
Mark Bloch [Tue, 20 Sep 2016 07:59:05 +0000 (07:59 +0000)]
net/mlx5: Add option to add fwd rule with counter

Currently the code supports only drop rules to possess counters,
add that ability also for fwd rules.

Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Add multi dest support
Mark Bloch [Wed, 31 Aug 2016 11:24:25 +0000 (11:24 +0000)]
net/mlx5: Add multi dest support

Currently when calling mlx5_add_flow_rule we accept
only one flow destination, this commit allows to pass
multiple destinations.

This change forces us to change the return structure to a more
flexible one. We introduce a flow handle (struct mlx5_flow_handle),
it holds internally the number for rules created and holds an array
where each cell points the to a flow rule.

From the consumers (of mlx5_add_flow_rule) point of view this
change is only cosmetic and requires only to change the type
of the returned value they store.

From the core point of view, we now need to use a loop when
allocating and deleting rules (e.g given to us a flow handler).

Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Group similer rules under the same fte
Mark Bloch [Sun, 11 Sep 2016 13:03:06 +0000 (13:03 +0000)]
net/mlx5: Group similer rules under the same fte

When adding a new rule, if we can match it with compare_match_value and
flow tag we might be able to insert the rule to the same fte.
In order to do that, there must be an overlap between the actions of the
fte and the new rule.

When updating the action of an existing fte, we must tell the firmware
we are doing so.

Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Refactor find_flow_rule
Mark Bloch [Fri, 16 Sep 2016 07:00:10 +0000 (07:00 +0000)]
net/mlx5: Refactor find_flow_rule

The way we compare between two dests will need to be used in other
places in the future, so we factor out the comparison logic
between two dests into a separate function.

Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Use fte status to decide on firmware command
Mark Bloch [Sun, 11 Sep 2016 12:54:50 +0000 (12:54 +0000)]
net/mlx5: Use fte status to decide on firmware command

An fte status becomes FS_FTE_STATUS_EXISTING only after it was
created in HW. We can use this in order to simplify the logic on
what firmware command to use. If the status isn't FS_FTE_STATUS_EXISTING
we need to create the fte, otherwise we need only to update it.

Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Don't unlock fte while still using it
Mark Bloch [Mon, 5 Sep 2016 10:58:04 +0000 (10:58 +0000)]
net/mlx5: Don't unlock fte while still using it

When adding a new rule to an fte, we need to hold the fte lock
until we add that rule to the fte and increase the fte ref count.

Fixes: 0c56b97503fd ("net/mlx5_core: Introduce flow steering API")
Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Add SRIOV VF max rate configuration support
Mohamad Haj Yahia [Thu, 11 Aug 2016 08:28:21 +0000 (11:28 +0300)]
net/mlx5: Add SRIOV VF max rate configuration support

Implement the vf set rate ndo by modifying the TSAR vport rate limit.

Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Introduce E-switch QoS management
Mohamad Haj Yahia [Thu, 11 Aug 2016 08:26:36 +0000 (11:26 +0300)]
net/mlx5: Introduce E-switch QoS management

Add TSAR to the eswitch which will act as the vports rate limiter.
Create/Destroy TSAR on Enable/Dsiable SRIOV.
Attach/Detach vport to eswitch TSAR on Enable/Disable vport.

Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Introduce TSAR manipulation firmware commands
Mohamad Haj Yahia [Thu, 11 Aug 2016 08:21:39 +0000 (11:21 +0300)]
net/mlx5: Introduce TSAR manipulation firmware commands

TSAR (stands for Transmit Scheduling ARbiter) is a hardware component
that is responsible for selecting the next entity to serve on the
transmit path.
The arbitration defines the QoS policy between the agents connected to
the TSAR.
The TSAR is a consist two main features:
1) BW Allocation between agents:
The TSAR implements a defecit weighted round robin between the agents.
Each agent attached to the TSAR is assigned with a weight and it is
awarded transmission tokens according to this weight.
2) Rate limer per agent:
Each agent attached to the TSAR is (optionally) assigned with a rate
limit.
TSAR will not allow scheduling for an agent exceeding its defined rate
limit.

In this patch we implement the API of manipulating the TSAR.

Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Add ConnectX-5 PCIe 4.0 VF device ID
Saeed Mahameed [Tue, 18 Oct 2016 18:35:35 +0000 (21:35 +0300)]
net/mlx5: Add ConnectX-5 PCIe 4.0 VF device ID

For the mlx5 driver to support ConnectX-5 PCIe 4.0 VFs, we add the
device ID "0x101a" to mlx5_core_pci_table.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Fix length of async_event_mask
Eugenia Emantayev [Wed, 28 Sep 2016 14:29:41 +0000 (17:29 +0300)]
net/mlx5: Fix length of async_event_mask

According to PRM async_event_mask have to be 64 bits long.

Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Ensure SRQ physical address structure endianness
Artemy Kovalyov [Wed, 31 Aug 2016 05:29:58 +0000 (05:29 +0000)]
net/mlx5: Ensure SRQ physical address structure endianness

SRQ physical address structure field should be in big-endian format.

Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agonet/mlx5: Update struct mlx5_ifc_xrqc_bits
Artemy Kovalyov [Wed, 31 Aug 2016 05:17:54 +0000 (05:17 +0000)]
net/mlx5: Update struct mlx5_ifc_xrqc_bits

Update struct mlx5_ifc_xrqc_bits according to last specification

Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agoIB/mlx5: Skip handling unknown events
Saeed Mahameed [Thu, 29 Sep 2016 16:35:38 +0000 (19:35 +0300)]
IB/mlx5: Skip handling unknown events

Do not dispatch unknown mlx5 core events on mlx5_ib_event.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
5 years agoLinux 4.9-rc3 v4.9-rc3
Linus Torvalds [Sat, 29 Oct 2016 20:52:02 +0000 (13:52 -0700)]
Linux 4.9-rc3

5 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 29 Oct 2016 20:42:44 +0000 (13:42 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 bugfix from Thomas Gleixner:
 "A single bugfix for the recent changes related to registering the boot
  cpu when this has not happened before prefill_possible_map().

  The main problem with this change got fixed already, but we missed the
  case where the local APIC is not yet mapped, when prefill_possible_map()
  is invoked, so the registration of the boot cpu which has the APIC bit
  set in CPUID will explode.

  I should have seen that issue earlier, but all I can do now is feeling
  embarassed"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/smpboot: Init apic mapping before usage

5 years agoMerge tag 'upstream-4.9-rc3' of git://git.infradead.org/linux-ubifs
Linus Torvalds [Sat, 29 Oct 2016 20:15:24 +0000 (13:15 -0700)]
Merge tag 'upstream-4.9-rc3' of git://git.infradead.org/linux-ubifs

Pull ubi/ubifs fixes from Richard Weinberger:
 "This contains fixes for issues in both UBI and UBIFS:

   - A regression wrt overlayfs, introduced in -rc2.
   - An UBI issue, found by Dan Carpenter's static checker"

* tag 'upstream-4.9-rc3' of git://git.infradead.org/linux-ubifs:
  ubifs: Fix regression in ubifs_readdir()
  ubi: fastmap: Fix add_vol() return value test in ubi_attach_fastmap()

5 years agoMerge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Sat, 29 Oct 2016 19:07:29 +0000 (12:07 -0700)]
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "We haven't seen a whole lot of fixes for the first two weeks since the
  merge window, but here is the batch that we have at the moment.

  Nothing sticks out as particularly bad or scary, it's mostly a handful
  of smaller fixes to several platforms. The Uniphier reset controller
  changes could probably have been delayed to 4.10, but they're not
  scary and just plumbing up driver changes that went in during the
  merge window.

  We're also adding another maintainer to Marvell Berlin platforms, to
  help out when Sebastian is too busy. Yay teamwork!"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: imx: mach-imx6q: Fix the PHY ID mask for AR8031
  ARM: dts: vf610: fix IRQ flag of global timer
  ARM: imx: gpc: Fix the imx_gpc_genpd_init() error path
  ARM: imx: gpc: Initialize all power domains
  arm64: dts: Updated NAND DT properties for NS2 SVK
  arm64: dts: uniphier: change MIO node to SD control node
  ARM: dts: uniphier: change MIO node to SD control node
  reset: uniphier: rename MIO reset to SD reset for Pro5, PXs2, LD20 SoCs
  arm64: uniphier: select ARCH_HAS_RESET_CONTROLLER
  ARM: uniphier: select ARCH_HAS_RESET_CONTROLLER
  arm64: dts: Add timer erratum property for LS2080A and LS1043A
  arm64: dts: rockchip: remove the abuse of keep-power-in-suspend
  ARM: multi_v7_defconfig: Enable Intel e1000e driver
  MAINTAINERS: add myself as Marvell berlin SoC maintainer
  bus: qcom-ebi2: depend on ARCH_QCOM or COMPILE_TEST
  ARM: dts: fix the SD card on the Snowball
  arm64: dts: rockchip: remove always-on and boot-on from vcc_sd
  arm64: dts: marvell: fix clocksource for CP110 master SPI0
  ARM: mvebu: Select corediv clk for all mvebu v7 SoC

5 years agoMerge tag 'char-misc-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sat, 29 Oct 2016 18:19:02 +0000 (11:19 -0700)]
Merge tag 'char-misc-4.9-rc3' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are a few small char/misc driver fixes for reported issues.

  The "biggest" are two binder fixes for reported issues that have been
  shipping in Android phones for a while now, the others are various
  fixes for reported problems.

  And there's a MAINTAINERS update for good measure.

  All have been in linux-next with no reported issues"

* tag 'char-misc-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  MAINTAINERS: Add entry for genwqe driver
  VMCI: Doorbell create and destroy fixes
  GenWQE: Fix bad page access during abort of resource allocation
  vme: vme_get_size potentially returning incorrect value on failure
  extcon: qcom-spmi-misc: Sync the extcon state on interrupt
  hv: do not lose pending heartbeat vmbus packets
  mei: txe: don't clean an unprocessed interrupt cause.
  ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct
  ANDROID: binder: Add strong ref checks

5 years agoMerge tag 'v4.9-rockchip-dts64-fixes1' of git://git.kernel.org/pub/scm/linux/kernel...
Olof Johansson [Sat, 29 Oct 2016 18:09:37 +0000 (11:09 -0700)]
Merge tag 'v4.9-rockchip-dts64-fixes1' of git://git./linux/kernel/git/mmind/linux-rockchip into fixes

Correct regulator handling on Rockchip arm64 boards to make
bind/unbind calls work correctly and remove a sdio-only
property from non-sdio mmc hosts, that accidentially was
added there.

* tag 'v4.9-rockchip-dts64-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  arm64: dts: rockchip: remove the abuse of keep-power-in-suspend
  arm64: dts: rockchip: remove always-on and boot-on from vcc_sd

Signed-off-by: Olof Johansson <olof@lixom.net>
5 years agoMerge tag 'arm-soc/for-4.9/devicetree-arm64-fixes' of http://github.com/Broadcom...
Olof Johansson [Sat, 29 Oct 2016 18:09:11 +0000 (11:09 -0700)]
Merge tag 'arm-soc/for-4.9/devicetree-arm64-fixes' of github.com/Broadcom/stblinux into fixes

This pull request contains a single fix for Broadcom ARM64-based SoCs:

- Ray adds the required bus width and OOB sector size properties to the
  Northstar 2 SVK reference board in order for the NAND controller to work
  properly

* tag 'arm-soc/for-4.9/devicetree-arm64-fixes' of http://github.com/Broadcom/stblinux:
  arm64: dts: Updated NAND DT properties for NS2 SVK

Signed-off-by: Olof Johansson <olof@lixom.net>
5 years agoMerge tag 'imx-fixes-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo...
Olof Johansson [Sat, 29 Oct 2016 18:08:50 +0000 (11:08 -0700)]
Merge tag 'imx-fixes-4.9' of git://git./linux/kernel/git/shawnguo/linux into fixes

The i.MX fixes for 4.9:
 - A couple of patches from Fabio to fix the GPC power domain regression
   which is caused by PM Domain core change 0159ec670763dd
   ("PM / Domains: Verify the PM domain is present when adding a
   provider"), and a related kernel crash seen with multi_v7_defconfig
   build.
 - Correct the PHY ID mask for AR8031 to match phy driver code.
 - Apply new added timer erratum A008585 for LS1043A and LS2080A SoC.
 - Correct vf610 global timer IRQ flag to avoid warning from gic driver
   after commit 992345a58e0c ("irqchip/gic: WARN if setting the
   interrupt type for a PPI fails").

* tag 'imx-fixes-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx: mach-imx6q: Fix the PHY ID mask for AR8031
  ARM: dts: vf610: fix IRQ flag of global timer
  ARM: imx: gpc: Fix the imx_gpc_genpd_init() error path
  ARM: imx: gpc: Initialize all power domains
  arm64: dts: Add timer erratum property for LS2080A and LS1043A

Signed-off-by: Olof Johansson <olof@lixom.net>
5 years agoMerge tag 'uniphier-fixes-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git...
Olof Johansson [Sat, 29 Oct 2016 18:05:49 +0000 (11:05 -0700)]
Merge tag 'uniphier-fixes-v4.9' of git://git./linux/kernel/git/masahiroy/linux-uniphier into fixes

UniPhier ARM SoC fixes for v4.9

- Add "select ARCH_HAS_RESET_CONTROLLER" in Kconfig
- Rename wrongly-named mioctrl to sdctrl

* tag 'uniphier-fixes-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier:
  arm64: dts: uniphier: change MIO node to SD control node
  ARM: dts: uniphier: change MIO node to SD control node
  reset: uniphier: rename MIO reset to SD reset for Pro5, PXs2, LD20 SoCs
  arm64: uniphier: select ARCH_HAS_RESET_CONTROLLER
  ARM: uniphier: select ARCH_HAS_RESET_CONTROLLER

Signed-off-by: Olof Johansson <olof@lixom.net>
5 years agoMerge tag 'driver-core-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 29 Oct 2016 17:57:40 +0000 (10:57 -0700)]
Merge tag 'driver-core-4.9-rc3' of git://git./linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are two small driver core / kernfs fixes for 4.9-rc3.

  One makes the Kconfig entry for DEBUG_TEST_DRIVER_REMOVE a bit more
  explicit that this is a crazy thing to enable for a distro kernel
  (thanks for trying Fedora!), the other resolves an issue with vim
  opening kernfs files (sysfs, configfs, etc.)

  Both have been in linux-next with no reported issues"

* tag 'driver-core-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  driver core: Make Kconfig text for DEBUG_TEST_DRIVER_REMOVE stronger
  kernfs: Add noop_fsync to supported kernfs_file_fops

5 years agoMerge tag 'staging-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sat, 29 Oct 2016 17:20:59 +0000 (10:20 -0700)]
Merge tag 'staging-4.9-rc3' of git://git./linux/kernel/git/gregkh/staging

Pull staging and IIO driver fixes from Greg KH:
 "Here are some small staging and iio driver fixes for reported issues
  for 4.9-rc3. Nothing major, the "largest" being a lustre fix for a
  sysfs file that was obviously wrong, and had never been tested, so it
  was moved to debugfs as that is where it belongs. The others are small
  bug fixes for reported issues with various staging or iio drivers.

  All have been in linux-next for a while with no reported issues"

* tag 'staging-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  greybus: fix a leak on error in gb_module_create()
  greybus: es2: fix error return code in ap_probe()
  greybus: arche-platform: Add missing of_node_put() in arche_platform_change_state()
  staging: android: ion: Fix error handling in ion_query_heaps()
  iio: accel: sca3000_core: avoid potentially uninitialized variable
  iio:chemical:atlas-ph-sensor: Fix use of 32 bit int to hold 16 bit big endian value
  staging/lustre/llite: Move unstable_stats from sysfs to debugfs
  Staging: wilc1000: Fix kernel Oops on opening the device
  staging: android/ion: testing the wrong variable
  Staging: greybus: uart: Use gbphy_dev->dev instead of bundle->dev
  Staging: greybus: gpio: Use gbphy_dev->dev instead of bundle->dev
  iio: adc: ti-adc081c: Select IIO_TRIGGERED_BUFFER to prevent build errors
  iio: maxim_thermocouple: Align 16 bit big endian value of raw reads

5 years agoMerge tag 'tty-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Sat, 29 Oct 2016 17:17:52 +0000 (10:17 -0700)]
Merge tag 'tty-4.9-rc3' of git://git./linux/kernel/git/gregkh/tty

Pull tty/serial driver fixes from Greg KH:
 "Here are a number of small tty and serial driver fixes for reported
  issues for 4.9-rc3. Nothing major, but they do resolve a bunch of
  problems with the tty core changes that are in 4.9-rc1, and finally
  the atmel serial driver is back working properly.

  All have been in linux-next with no reported issues"

* tag 'tty-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: serial_core: fix NULL struct tty pointer access in uart_write_wakeup
  tty: serial_core: Fix serial console crash on port shutdown
  tty/serial: at91: fix hardware handshake on Atmel platforms
  vt: clear selection before resizing
  sc16is7xx: always write state when configuring GPIO as an output
  sh-sci: document R8A7743/5 support
  tty: serial: 8250: 8250_core: NXP SC16C2552 workaround
  tty: limit terminal size to 4M chars
  tty: serial: fsl_lpuart: Fix Tx DMA edge case
  serial: 8250_lpss: enable MSI for sure
  serial: core: fix console problems on uart_close
  serial: 8250_uniphier: fix clearing divisor latch access bit
  serial: 8250_uniphier: fix more unterminated string
  serial: pch_uart: add terminate entry for dmi_system_id tables
  devicetree: bindings: uart: Add new compatible string for ZynqMP
  serial: xuartps: Add new compatible string for ZynqMP
  serial: SERIAL_STM32 should depend on HAS_DMA
  serial: stm32: Fix comparisons with undefined register
  tty: vt, fix bogus division in csi_J

5 years agoMerge tag 'usb-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sat, 29 Oct 2016 17:07:59 +0000 (10:07 -0700)]
Merge tag 'usb-4.9-rc3' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a number of small USB driver fixes for 4.9-rc3.

  There is the usual number of gadget and xhci patches in here to
  resolved reported issues, as well as some usb-serial driver fixes and
  new device ids.

  All have been in linux-next with no reported issues"

* tag 'usb-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits)
  usb: chipidea: host: fix NULL ptr dereference during shutdown
  usb: renesas_usbhs: add wait after initialization for R-Car Gen3
  usb: increase ohci watchdog delay to 275 msec
  usb: musb: Call pm_runtime from musb_gadget_queue
  usb: musb: Fix hardirq-safe hardirq-unsafe lock order error
  usb: ehci-platform: increase EHCI_MAX_RSTS to 4
  usb: ohci-at91: Set RemoteWakeupConnected bit explicitly.
  USB: serial: fix potential NULL-dereference at probe
  xhci: use default USB_RESUME_TIMEOUT when resuming ports.
  xhci: workaround for hosts missing CAS bit
  xhci: add restart quirk for Intel Wildcatpoint PCH
  USB: serial: cp210x: fix tiocmget error handling
  wusb: fix error return code in wusb_prf()
  Revert "Documentation: devicetree: dwc2: Deprecate g-tx-fifo-size"
  Revert "usb: dwc2: gadget: fix TX FIFO size and address initialization"
  Revert "usb: dwc2: gadget: change variable name to more meaningful"
  USB: serial: ftdi_sio: add support for Infineon TriBoard TC2X7
  wusb: Stop using the stack for sg crypto scratch space
  usb: dwc3: Fix size used in dma_free_coherent()
  usb: gadget: f_fs: stop sleeping in ffs_func_eps_disable
  ...

5 years agox86/smpboot: Init apic mapping before usage
Thomas Gleixner [Sat, 29 Oct 2016 11:42:42 +0000 (13:42 +0200)]
x86/smpboot: Init apic mapping before usage

The recent changes, which forced the registration of the boot cpu on UP
systems, which do not have ACPI tables, have been fixed for systems w/o
local APIC, but left a wreckage for systems which have neither ACPI nor
mptables, but the CPU has an APIC, e.g. virtualbox.

The boot process crashes in prefill_possible_map() as it wants to register
the boot cpu, which needs to access the local apic, but the local APIC is
not yet mapped.

There is no reason why init_apic_mapping() can't be invoked before
prefill_possible_map(). So instead of playing another silly early mapping
game, as the ACPI/mptables code does, we just move init_apic_mapping()
before the call to prefill_possible_map().

In hindsight, I should have noticed that combination earlier.

Sorry for the churn (also in stable)!

Fixes: ff8560512b8d ("x86/boot/smp: Don't try to poke disabled/non-existent APIC")
Reported-and-debugged-by: Michal Necasek <michal.necasek@oracle.com>
Reported-and-tested-by: Wolfgang Bauer <wbauer@tmo.at>
Cc: prarit@redhat.com
Cc: ville.syrjala@linux.intel.com
Cc: michael.thayer@oracle.com
Cc: knut.osmundsen@oracle.com
Cc: frank.mehnert@oracle.com
Cc: Borislav Petkov <bp@alien8.de>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1610282114380.5053@nanos
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
5 years agoMerge tag 'acpi-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Sat, 29 Oct 2016 01:34:19 +0000 (18:34 -0700)]
Merge tag 'acpi-4.9-rc3' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix recent ACPICA regressions, an older PCI IRQ management
  regression, and an incorrect return value of a function in the APEI
  code.

  Specifics:

   - Fix three ACPICA issues related to the interpreter locking and
     introduced by recent changes in that area (Lv Zheng).

   - Fix a PCI IRQ management regression introduced during the 4.7 cycle
     and related to the configuration of shared IRQs on systems with an
     ISA bus (Sinan Kaya).

   - Fix up a return value of one function in the APEI code (Punit
     Agrawal)"

* tag 'acpi-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPICA: Dispatcher: Fix interpreter locking around acpi_ev_initialize_region()
  ACPICA: Dispatcher: Fix an unbalanced lock exit path in acpi_ds_auto_serialize_method()
  ACPICA: Dispatcher: Fix order issue of method termination
  ACPI / APEI: Fix incorrect return value of ghes_proc()
  ACPI/PCI: pci_link: Include PIRQ_PENALTY_PCI_USING for ISA IRQs
  ACPI/PCI: pci_link: penalize SCI correctly
  ACPI/PCI/IRQ: assign ISA IRQ directly during early boot stages

5 years agoMerge tag 'pm-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Sat, 29 Oct 2016 01:29:13 +0000 (18:29 -0700)]
Merge tag 'pm-4.9-rc3' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix two intel_pstate issues related to the way it works when the
  scaling_governor sysfs attribute is set to "performance" and fix up
  messages in the system suspend core code.

  Specifics:

   - Fix a missing KERN_CONT in a system suspend message by converting
     the affected code to using pr_info() and pr_cont() instead of the
     "raw" printk() (Jon Hunter).

   - Make intel_pstate set the CPU P-state from its .set_policy()
     callback when the scaling_governor sysfs attribute is set to
     "performance" so that it interacts with NOHZ_FULL more predictably
     which was the case before 4.7 (Rafael Wysocki).

   - Make intel_pstate always request the maximum allowed P-state when
     the scaling_governor sysfs attribute is set to "performance" to
     prevent it from effectively ingoring that setting is some
     situations (Rafael Wysocki)"

* tag 'pm-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: intel_pstate: Always set max P-state in performance mode
  PM / suspend: Fix missing KERN_CONT for suspend message
  cpufreq: intel_pstate: Set P-state upfront in performance mode

5 years agoMerge tag 'arc-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Linus Torvalds [Sat, 29 Oct 2016 00:02:58 +0000 (17:02 -0700)]
Merge tag 'arc-4.9-rc3' of git://git./linux/kernel/git/vgupta/arc

Pull ARC updates from Vineet Gupta:

 - support IDU intc for UP builds

 - support gz, lzma compressed uImage [Daniel Mentz]

 - adjust /proc/cpuinfo for non-continuous cpu ids [Noam Camus]

 - syscall for userspace cmpxchg assist for configs lacking hardware atomics

 - rework of boot log printing mainly for identifying older arc700 cores

 - retiring some old code, build toggles

* tag 'arc-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: module: print pretty section names
  ARC: module: elide loop to save reference to .eh_frame
  ARC: mm: retire ARC_DBG_TLB_MISS_COUNT...
  ARC: build: retire old toggles
  ARC: boot log: refactor cpu name/release printing
  ARC: boot log: remove awkward space comma from MMU line
  ARC: boot log: don't assume SWAPE instruction support
  ARC: boot log: refactor printing abt features not captured in BCRs
  ARCv2: boot log: print IOC exists as well as enabled status
  ARCv2: IOC: use @ioc_enable not @ioc_exist where intended
  ARC: syscall for userspace cmpxchg assist
  ARC: fix build warning in elf.h
  ARC: Adjust cpuinfo for non-continuous cpu ids
  ARC: [build] Support gz, lzma compressed uImage
  ARCv2: intc: untangle SMP, MCIP and IDU

5 years agoMerge branches 'acpica-fixes', 'acpi-pci-fixes' and 'acpi-apei-fixes'
Rafael J. Wysocki [Fri, 28 Oct 2016 23:58:03 +0000 (01:58 +0200)]
Merge branches 'acpica-fixes', 'acpi-pci-fixes' and 'acpi-apei-fixes'

* acpica-fixes:
  ACPICA: Dispatcher: Fix interpreter locking around acpi_ev_initialize_region()
  ACPICA: Dispatcher: Fix an unbalanced lock exit path in acpi_ds_auto_serialize_method()
  ACPICA: Dispatcher: Fix order issue of method termination

* acpi-pci-fixes:
  ACPI/PCI: pci_link: Include PIRQ_PENALTY_PCI_USING for ISA IRQs
  ACPI/PCI: pci_link: penalize SCI correctly
  ACPI/PCI/IRQ: assign ISA IRQ directly during early boot stages

* acpi-apei-fixes:
  ACPI / APEI: Fix incorrect return value of ghes_proc()

5 years agoACPICA: Dispatcher: Fix interpreter locking around acpi_ev_initialize_region()
Lv Zheng [Wed, 26 Oct 2016 07:42:01 +0000 (15:42 +0800)]
ACPICA: Dispatcher: Fix interpreter locking around acpi_ev_initialize_region()

In the code path of acpi_ev_initialize_region(), there is namespace
modification code unlocked. This patch tunes the code to make sure
such modification are always locked.

Fixes: 74f51b80a0c4 (ACPICA: Namespace: Fix dynamic table loading issues)
Tested-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
5 years agoACPICA: Dispatcher: Fix an unbalanced lock exit path in acpi_ds_auto_serialize_method()
Lv Zheng [Wed, 26 Oct 2016 07:40:20 +0000 (15:40 +0800)]
ACPICA: Dispatcher: Fix an unbalanced lock exit path in acpi_ds_auto_serialize_method()

There is a lock unbalanced exit path in acpi_ds_initialize_method(),
this patch corrects it.

Fixes: 441ad11d078f (ACPICA: Dispatcher: Fix a mutex issue for method auto serialization)
Tested-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
5 years agoACPICA: Dispatcher: Fix order issue of method termination
Lv Zheng [Wed, 26 Oct 2016 07:40:12 +0000 (15:40 +0800)]
ACPICA: Dispatcher: Fix order issue of method termination

The last step of the method termination should be the end of the method
serialization. Otherwise, the steps happening after it will face the race
issues that cannot be protected by the method serialization mechanism.

This patch fixes this issue by moving the per-method-object deletion code
prior than the end of the method serialization. Otherwise, the possible
race issues may result in AE_ALREADY_EXISTS error in a parallel
environment.

Fixes: 74f51b80a0c4 (ACPICA: Namespace: Fix dynamic table loading issues)
Reported-and-tested-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
5 years agoMerge tag 'powerpc-4.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Fri, 28 Oct 2016 23:52:28 +0000 (16:52 -0700)]
Merge tag 'powerpc-4.9-4' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "Fixes marked for stable:
   - Convert cmp to cmpd in idle enter sequence (Segher Boessenkool)
   - cxl: Fix leaking pid refs in some error paths (Vaibhav Jain)
   - Re-fix race condition between going idle and entering guest (Paul Mackerras)
   - Fix race condition in setting lock bit in idle/wakeup code (Paul Mackerras)
   - radix: Use tlbiel only if we ever ran on the current cpu (Aneesh Kumar K.V)
   - relocation, register save fixes for system reset interrupt (Nicholas Piggin)

  Fixes for code merged this cycle:
   - Fix CONFIG_ALIVEC typo in restore_tm_state() (Valentin Rothberg)
   - KVM: PPC: Book3S HV: Fix build error when SMP=n (Michael Ellerman)"

* tag 'powerpc-4.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64s: relocation, register save fixes for system reset interrupt
  powerpc/mm/radix: Use tlbiel only if we ever ran on the current cpu
  powerpc/process: Fix CONFIG_ALIVEC typo in restore_tm_state()
  powerpc/64: Fix race condition in setting lock bit in idle/wakeup code
  powerpc/64: Re-fix race condition between going idle and entering guest
  cxl: Fix leaking pid refs in some error paths
  powerpc: Convert cmp to cmpd in idle enter sequence
  KVM: PPC: Book3S HV: Fix build error when SMP=n

5 years agoMerge branches 'pm-cpufreq-fixes' and 'pm-sleep-fixes'
Rafael J. Wysocki [Fri, 28 Oct 2016 23:29:17 +0000 (01:29 +0200)]
Merge branches 'pm-cpufreq-fixes' and 'pm-sleep-fixes'

* pm-cpufreq-fixes:
  cpufreq: intel_pstate: Always set max P-state in performance mode
  cpufreq: intel_pstate: Set P-state upfront in performance mode

* pm-sleep-fixes:
  PM / suspend: Fix missing KERN_CONT for suspend message

5 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 28 Oct 2016 23:27:16 +0000 (16:27 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Misc kernel fixes: a virtualization environment related fix, an uncore
  PMU driver removal handling fix, a PowerPC fix and new events for
  Knights Landing"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel: Honour the CPUID for number of fixed counters in hypervisors
  perf/powerpc: Don't call perf_event_disable() from atomic context
  perf/core: Protect PMU device removal with a 'pmu_bus_running' check, to fix CONFIG_DEBUG_TEST_DRIVER_REMOVE=y kernel panic
  perf/x86/intel/cstate: Add C-state residency events for Knights Landing

5 years agoMerge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdim...
Linus Torvalds [Fri, 28 Oct 2016 18:47:45 +0000 (11:47 -0700)]
Merge branch 'libnvdimm-fixes' of git://git./linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm fixes from Dan Williams:
 "A build fix, a NULL de-reference found by static analysis, a misuse of
  the percpu_ref_exit() (tagged for -stable), and notification of failed
  attempts to clear media errors.

  These patches have received a build success notification from the
  0day- kbuild-robot and appeared in next-20161028"

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  device-dax: fix percpu_ref_exit ordering
  nvdimm: make CONFIG_NVDIMM_DAX 'bool'
  pmem: report error on clear poison failure
  libnvdimm, namespace: potential NULL deref on allocation error

5 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 28 Oct 2016 18:31:06 +0000 (11:31 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Three arm64 fixes for -rc3.  They're all pretty straightforward: a
  couple of NUMA issues from the Huawei folks and a thinko in
  __page_to_voff that seems to be benign, but is certainly better off
  fixed.

  Summary:
   - couple of NUMA fixes
   - thinko in __page_to_voff"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: mm: fix __page_to_voff definition
  arm64/numa: fix incorrect log for memory-less node
  arm64/numa: fix pcpu_cpu_distance() to get correct CPU proximity

5 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 28 Oct 2016 18:28:14 +0000 (11:28 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Misc fixes: three build fixes, an unwinder fix and a microcode loader
  fix"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode/AMD: Fix more fallout from CONFIG_RANDOMIZE_MEMORY=y
  x86: Fix export for mcount and __fentry__
  x86/quirks: Hide maybe-uninitialized warning
  x86/build: Fix build with older GCC versions
  x86/unwind: Fix empty stack dereference in guess unwinder

5 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 28 Oct 2016 18:26:01 +0000 (11:26 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull timer fixes from Ingo Molnar:
 "Fix four timer locking races: two were noticed by Linus while
  reviewing the code while chasing for a corruption bug, and two
  from fixing spurious USB timeouts"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timers: Prevent base clock corruption when forwarding
  timers: Prevent base clock rewind when forwarding clock
  timers: Lock base for same bucket optimization
  timers: Plug locking race vs. timer migration

5 years agoMerge branches 'core-urgent-for-linus', 'irq-urgent-for-linus' and 'sched-urgent...
Linus Torvalds [Fri, 28 Oct 2016 17:12:27 +0000 (10:12 -0700)]
Merge branches 'core-urgent-for-linus', 'irq-urgent-for-linus' and 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull objtool, irq and scheduler fixes from Ingo Molnar:
 "One more objtool fixlet for GCC6 code generation patterns, an irq
  DocBook fix and an unused variable warning fix in the scheduler"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Fix rare switch jump table pattern detection

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  doc: Add missing parameter for msi_setup

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Remove unused but set variable 'rq'

5 years agoARC: module: print pretty section names
Vineet Gupta [Tue, 25 Oct 2016 18:23:19 +0000 (11:23 -0700)]
ARC: module: print pretty section names

Now that we have referece to section name string table in
apply_relocate_add(), use it to

 - print the name of section being relocated
 - print symbol with NULL name (since it refers to a section)

before

| Section to fixup 7000a060
| =========================================================
| rela->r_off | rela->addend | sym->st_value | ADDR | VALUE
| =========================================================
| 1c 0 7000e000  7000a07c 7000e000 []
| 40 0 7000a000  7000a0a0 7000a000 []

after

| Section to fixup .eh_frame @7000a060
| =========================================================
| r_off r_add st_value ADDRESS  VALUE
| =========================================================
|    1c 0 7000e000 7000a07c 7000e000 [.init.text]
|    40 0 7000a000 7000a0a0 7000a000 [.exit.text]

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
5 years agoARC: module: elide loop to save reference to .eh_frame
Vineet Gupta [Tue, 25 Oct 2016 17:43:20 +0000 (10:43 -0700)]
ARC: module: elide loop to save reference to .eh_frame

The loop was really needed in .debug_frame regime where wanted make it
as SH_ALLOC so that apply_relocate_add() would process it. That's not
needed for .eh_frame, so we check this in apply_relocate_add() which
gets called for each section.

Note that we need to save reference to "section name strings" section in
module_frob_arch_sections() since apply_relocate_add() doesn't get that

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
5 years agoARC: mm: retire ARC_DBG_TLB_MISS_COUNT...
Vineet Gupta [Tue, 25 Oct 2016 15:58:17 +0000 (08:58 -0700)]
ARC: mm: retire ARC_DBG_TLB_MISS_COUNT...

... given that we have perf counters abel to do the same thing non
intrusively

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
5 years agoARC: build: retire old toggles
Vineet Gupta [Fri, 21 Oct 2016 23:04:37 +0000 (16:04 -0700)]
ARC: build: retire old toggles

These are really ancient toggles and tools no longer require them to be
passed. This paves way for deprecating them in long run.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
5 years agoARC: boot log: refactor cpu name/release printing
Vineet Gupta [Thu, 27 Oct 2016 21:33:19 +0000 (14:33 -0700)]
ARC: boot log: refactor cpu name/release printing

The motivation is to identify ARC750 vs. ARC770 (we currently print
generic "ARC700").

A given ARC700 release could be 750 or 770, with same ARCNUM (or family
identifier which is unfortunate). The existing arc_cpu_tbl[] kept a single
concatenated string for core name and release which thus doesn't work
for 750 vs. 770 identification.

So split this into 2 tables, one with core names and other with release.
And while we are at it, get rid of the range checking for family numbers.
We just document the known to exist cores running Linux and ditch
others.

With this in place, we add detection of ARC750 which is
 - cores 0x33 and before
 - cores 0x34 and later with MMUv2

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
5 years agoARC: boot log: remove awkward space comma from MMU line
Vineet Gupta [Tue, 25 Oct 2016 20:45:11 +0000 (13:45 -0700)]
ARC: boot log: remove awkward space comma from MMU line

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
5 years agoARC: boot log: don't assume SWAPE instruction support
Vineet Gupta [Fri, 21 Oct 2016 01:08:10 +0000 (18:08 -0700)]
ARC: boot log: don't assume SWAPE instruction support

This came to light when helping a customer with oldish ARC750 core who
were getting instruction errors because of lack of SWAPE but boot log
was incorrectly printing it as being present

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
5 years agoARC: boot log: refactor printing abt features not captured in BCRs
Vineet Gupta [Fri, 21 Oct 2016 00:49:15 +0000 (17:49 -0700)]
ARC: boot log: refactor printing abt features not captured in BCRs

On older arc700 cores, some of the features configured were not present
in Build config registers. To print about them at boot, we just use the
Kconfig option i.e. whether linux is built to use them or not.
So yes this seems bogus, but what else can be done. Moreover if linux is
booting with these enabled, then the Kconfig info is a good indicator
anyways.

Over time these "hacks" accumulated in read_arc_build_cfg_regs() as well
as arc_cpu_mumbojumbo(). so refactor and move all of those in a single
place: read_arc_build_cfg_regs(). This causes some code redcution too:

| bloat-o-meter2 arch/arc/kernel/setup.o.0 arch/arc/kernel/setup.o.1
| add/remove: 0/0 grow/shrink: 2/1 up/down: 64/-132 (-68)
| function                                     old     new   delta
| setup_processor                              610     670     +60
| cpuinfo_arc700                                76      80      +4
| arc_cpu_mumbojumbo                           752     620    -132

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
5 years agoMerge branch 'for-linus-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mason...
Linus Torvalds [Fri, 28 Oct 2016 17:07:35 +0000 (10:07 -0700)]
Merge branch 'for-linus-4.9' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "My patch fixes the btrfs list_head abuse that we tracked down during
  Dave Jones' memory corruption investigation. With both Jens and my
  patches in place, I'm no longer able to trigger problems.

  Filipe is fixing a difficult old bug between snapshots, balance and
  send. Dave is cooking a few more for the next rc, but these are tested
  and ready"

* 'for-linus-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: fix races on root_log_ctx lists
  btrfs: fix incremental send failure caused by balance

5 years agoARCv2: boot log: print IOC exists as well as enabled status
Vineet Gupta [Thu, 13 Oct 2016 22:53:02 +0000 (15:53 -0700)]
ARCv2: boot log: print IOC exists as well as enabled status

Previously we would not print the case when IOC existed but was not
enabled.

And while at it, reduce one line off boot printing by consolidating
the Peripheral address space and IO-Coherency which in a way
applies to them

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
5 years agoMerge tag 'sound-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 28 Oct 2016 17:00:44 +0000 (10:00 -0700)]
Merge tag 'sound-4.9-rc3' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This contains the usual stuff -- the fixups and quirks for HD-audio
  and USB-audio, in addition to a bad regression fix in ALSA sequencer
  timer since 4.8, and a trivial fix for asihpi PCI driver"

* tag 'sound-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: Add quirk for Syntek STK1160
  ALSA: seq: Fix time account regression
  ALSA: hda - Fix surround output pins for ASRock B150M mobo
  ALSA: hda - Fix headset mic detection problem for two Dell laptops
  ALSA: asihpi: fix kernel memory disclosure
  ALSA: hda - Adding a new group of pin cfg into ALC295 pin quirk table
  ALSA: hda - allow 40 bit DMA mask for NVidia devices

5 years agoMerge tag 'drm-x86-pat-regression-fix' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 28 Oct 2016 16:36:07 +0000 (09:36 -0700)]
Merge tag 'drm-x86-pat-regression-fix' of git://people.freedesktop.org/~airlied/linux

Pull drm x86/pat regression fixes from Dave Airlie:
 "This is a standalone pull request for the fix for a regression
  introduced in -rc1 by a change to vm_insert_mixed to start using the
  PAT range tracking to validate page protections. With this fix in
  place, all the VRAM mappings for GPU drivers ended up at UC instead of
  WC.

  There are probably better ways to fix this long term, but nothing I'd
  considered for -fixes that wouldn't need more settling in time. So
  I've just created a new arch API that the drivers can reserve all
  their VRAM aperture ranges as WC"

* tag 'drm-x86-pat-regression-fix' of git://people.freedesktop.org/~airlied/linux:
  drm/drivers: add support for using the arch wc mapping API.
  x86/io: add interface to reserve io memtype for a resource range. (v1.1)

5 years agoMerge tag 'dm-4.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device...
Linus Torvalds [Fri, 28 Oct 2016 16:27:58 +0000 (09:27 -0700)]
Merge tag 'dm-4.9-fixes' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - a couple DM raid and DM mirror fixes

 - a couple .request_fn request-based DM NULL pointer fixes

 - a fix for a DM target reference count leak, on target load error,
   that prevented associated DM target kernel module(s) from being
   removed

* tag 'dm-4.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm table: fix missing dm_put_target_type() in dm_table_add_target()
  dm rq: clear kworker_task if kthread_run() returned an error
  dm: free io_barrier after blk_cleanup_queue call
  dm raid: fix activation of existing raid4/10 devices
  dm mirror: use all available legs on multiple failures
  dm mirror: fix read error on recovery after default leg failure
  dm raid: fix compat_features validation

5 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Fri, 28 Oct 2016 16:23:59 +0000 (09:23 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/linux-security

Pull key fixes from James Morris:

 - fix a buffer overflow when displaying /proc/keys [CVE-2016-7042].

 - fix broken initialisation in the big_key implementation that can
   result in an oops.

 - make big_key depend on having a random number generator available in
   Kconfig.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  security/keys: make BIG_KEYS dependent on stdrng.
  KEYS: Sort out big_key initialisation
  KEYS: Fix short sprintf buffer in /proc/keys show function

5 years agoubifs: Fix regression in ubifs_readdir()
Richard Weinberger [Fri, 28 Oct 2016 09:49:03 +0000 (11:49 +0200)]
ubifs: Fix regression in ubifs_readdir()

Commit c83ed4c9dbb35 ("ubifs: Abort readdir upon error") broke
overlayfs support because the fix exposed an internal error
code to VFS.

Reported-by: Peter Rosin <peda@axentia.se>
Tested-by: Peter Rosin <peda@axentia.se>
Reported-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
Tested-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
Fixes: c83ed4c9dbb35 ("ubifs: Abort readdir upon error")
Cc: stable@vger.kernel.org
Signed-off-by: Richard Weinberger <richard@nod.at>
5 years agoubi: fastmap: Fix add_vol() return value test in ubi_attach_fastmap()
Boris Brezillon [Fri, 28 Oct 2016 09:08:44 +0000 (11:08 +0200)]
ubi: fastmap: Fix add_vol() return value test in ubi_attach_fastmap()

Commit e96a8a3bb671 ("UBI: Fastmap: Do not add vol if it already
exists") introduced a bug by changing the possible error codes returned
by add_vol():
- this function no longer returns NULL in case of allocation failure
  but return ERR_PTR(-ENOMEM)
- when a duplicate entry in the volume RB tree is found it returns
  ERR_PTR(-EEXIST) instead of ERR_PTR(-EINVAL)

Fix the tests done on add_vol() return val to match this new behavior.

Fixes: e96a8a3bb671 ("UBI: Fastmap: Do not add vol if it already exists")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
5 years agoMAINTAINERS: Add entry for genwqe driver
Gabriel Krisman Bertazi [Tue, 4 Oct 2016 18:26:48 +0000 (15:26 -0300)]
MAINTAINERS: Add entry for genwqe driver

Frank and I maintain this

Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
Cc: haver@linux.vnet.ibm.com
Acked-by: Frank Haverkamp <haver@linux.vnet.ibm.com>=
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5 years agoVMCI: Doorbell create and destroy fixes
Jorgen Hansen [Thu, 6 Oct 2016 11:43:08 +0000 (04:43 -0700)]
VMCI: Doorbell create and destroy fixes

This change consists of two changes:

1) If vmci_doorbell_create is called when neither guest nor
   host personality as been initialized, vmci_get_context_id
   will return VMCI_INVALID_ID. In that case, we should fail
   the create call.
2) In doorbell destroy, we assume that vmci_guest_code_active()
   has the same return value on create and destroy. That may not
   be the case, so we may end up with the wrong refcount.
   Instead, destroy should check explicitly whether the doorbell
   is in the index table as an indicator of whether the guest
   code was active at create time.

Reviewed-by: Adit Ranadive <aditr@vmware.com>
Signed-off-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>