Commit Graph

3471 Commits

Author SHA1 Message Date
Bhaktipriya Shridhar
90b14b3237 IB/mlx4/mad: Remove deprecated create_singlethread_workqueue
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "wq" queues work item &ctx->work and the workqueue "ud_wq"
queues work item &dm[i]->work.

Both the workqueues have been identity converted.

WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:30 -04:00
Bhaktipriya Shridhar
41cd394405 IB/mlx4: Remove deprecated create_singlethread_workqueue
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "wq" queues work items &dm[i]->work, &ew->work.
It has been identity converted.

WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:30 -04:00
Bhaktipriya Shridhar
72a36d1141 IB/mlx5/odp: Remove deprecated create_singlethread_workqueue
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "mlx5_ib_page_fault_wq" queues work item &qp_pfault->work.
It has been identity converted.

WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:29 -04:00
Bhaktipriya Shridhar
3c856c82ad IB/mlx5: Remove deprecated create_singlethread_workqueue
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "cache->wq" queues work items &ent->work (maps to
cache_work_func) and &ent->dwork(maps to delayed_cache_work_func).
It has been identity converted.

WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:29 -04:00
Bhaktipriya Shridhar
5e9ff9b0bf i40iw_cm: Remove deprecated create_singlethread_workqueue
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "event_wq" is involved in event handling and queues
i40iw_cm_event_handler.

The workqueue "disconn_wq" is involved in closing connection and queues
i40iw_disconnect_worker.

Both workqueues have been identity converted.

WQ_MEM_RECLAIM has been set to ensure forward progress under memory
pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:28 -04:00
Bhaktipriya Shridhar
73b9769543 i40iw_main: Remove deprecated create_singlethread_workqueue
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "virtchnl_wq" queues work items i40iw_cqp_generic_worker
and i40iw_cqp_manage_hmc_fcn_worker. It has been identity converted.

WQ_MEM_RECLAIM has been set to ensure forward progress under memory
pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:28 -04:00
Bhaktipriya Shridhar
401f047e1b IB/mthca: Remove deprecated create_singlethread_workqueue
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "catas_wq" in triggering a device remove and causing a
device reset when a catastrophic error occurs. It has been identity
converted.

WQ_MEM_RECLAIM has been set to ensure forward progress under memory
pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:27 -04:00
Bhaktipriya Shridhar
52ee1a05d2 iw_cxgb4: Remove deprecated create_singlethread_workqueue
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "workq" queues work item &skb_work. It has been
identity converted.

WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:27 -04:00
Bhaktipriya Shridhar
b59114bbca IB/qib: Remove deprecated create_singlethread_workqueue
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "qib" queues work item &priv->s_work. It has been
identity converted.

WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Tested-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:26 -04:00
Bhaktipriya Shridhar
b41ff7cdb5 iw_cxgb3: Remove deprecated create_singlethread_workqueue
alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "workq" queues work item &skb_work. It has been
identity converted.

WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:26 -04:00
Aviv Heller
13eab21f92 IB/mlx5: LAG QP load balancing
When LAG is active, QP tx affinity (the physical port
to which a QP is affined, or the TIS in case of raw-eth)
is set in a round robin fashion during state transition
from RESET to INIT.

Signed-off-by: Aviv Heller <avivh@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:22 -04:00
Aviv Heller
4babcf97c5 IB/mlx5: Set unique device name on LAG
IB bond device name is now 'mlx5_bond_X', instead of
'mlx5_X'.

Signed-off-by: Aviv Heller <avivh@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:21 -04:00
Aviv Heller
88621dfe90 IB/mlx5: Port status track LAG master, when LAG is active
When LAG is active, port up/down events should be triggered
by tracking the LAG master, and not one of the two slave
netdevs.

In the same manner, ib_query_port() should return the details
of the LAG master.

Signed-off-by: Aviv Heller <avivh@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:21 -04:00
Aviv Heller
9ef9c640f4 IB/mlx5: Merge vports flow steering during LAG
This is done in two steps:
1) Issuing CREATE_VPORT_LAG in order to have Ethernet traffic from
both ports arriving on PF0 root flowtable, so we will be able to catch
all raw-eth traffic on PF0.
2) Creation of LAG demux flowtable in order to direct all non-raw-eth
traffic back to its source port, assuring that normal Ethernet
traffic "jumps" to the root flowtable of its RX port (non-LAG behavior).

Signed-off-by: Aviv Heller <avivh@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:20 -04:00
Aviv Heller
5ec8c83e3a IB/mlx5: Port events in RoCE now rely on netdev events
Since ib_query_port() in RoCE returns the state of its netdev as the port
state, it makes sense to propagate the port up/down events to ib_core
when the netdev port state changes, instead of relying on traditional
core events.

This also keeps both the event and ib_query_port() synchronized.

Signed-off-by: Aviv Heller <avivh@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:20 -04:00
Yishai Hadas
350d0e4c7e IB/mlx5: Track asynchronous events on a receive work queue
Track asynchronous events on a receive work queue by using the
mlx5_core_create_rq_tracked API.

In case a fatal error has occurred letting the IB layer know about by
using the ib_wq event handler.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:20 -04:00
Maor Gottlieb
466fa6d2e3 IB/mlx5: Add support of more IPv6 fields to flow steering
Add support to receive Traffic Class, specific IPv6 protocol
or IPv6 flow label.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:19 -04:00
Maor Gottlieb
ca0d475385 IB/mlx5: Add support in TOS and protocol to flow steering
Add support to receive TOS or specific IPv4 protocol.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:19 -04:00
Maor Gottlieb
c47ac6aee6 IB/mlx5: Add validation to flow specifications parsing
Add validation check that all set fields in flow specification
are supported by vendor.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:17 -04:00
Maor Gottlieb
1f02a09c38 IB/mlx4: Add validation to flow specifications parsing
Add validation check that all set fields in flow specification
are supported by vendor.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:16 -04:00
Maor Gottlieb
cc0e5d4235 IB/mlx5: Add sniffer support to steering
Add support to create sniffer rule. This rule receive all
incoming and outgoing packets from the port.
A user could create such rule by using IB_FLOW_ATTR_SNIFFER type.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:16 -04:00
Maor Gottlieb
d9d4980af2 IB/mlx5: Increase flow table reference count in create rule
Move the reference count increasing of flow table to be in
create_flow_rule, it will increase the reference count for each rule
creation and not for each flow.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:15 -04:00
Maor Gottlieb
dd063d0e6c IB/mlx5: Fix coverity warning
Fix covertiy warning of passing "&flow_attr" to function
"create_flow_rule" which uses it as an array.

In addition pass flow attributes argument as const.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:15 -04:00
Maor Gottlieb
5497adc632 IB/mlx5: Save flow table priority handler instead of index
Saving the flow table priority object's pointer in the flow handle
is necessary for downstream patches since the sniffer flow table isn't
placed at the standard flow_db structure but in a different database.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:15 -04:00
Maor Gottlieb
7055a29471 IB/mlx5: Fix steering resource leak
Fix multicast flow rule leak on adding unicast rule failure.

Fixes: 038d2ef875 ('IB/mlx5: Add flow steering support')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:14 -04:00
Alex Vesker
eb49ab0c5f IB/mlx5: Add port counter support for raw packet QP
Counters weren't updated due to raw packet QPs' traffic since the
counter-id was not associated with the QP. Added support for
associating the q-counter-id with the raw packet QP. The attachment
is done only when changing RQ raw packet QP state from RST to INIT
in modify-RQ command. FW support is required for the above, without
this support raw packet QP counters will not count.

Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:14 -04:00
Alex Vesker
0680efa214 IB/mlx5: Refactor raw packet QP modify function
Added a struct for modifying raw QP, this will allow modifying
multiple parameters in raw packet QP RQ and can also be used for
SQ in the future.

Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:13 -04:00
Yishai Hadas
31f69a82b4 IB/mlx5: Expose RSS related capabilities
Expose RSS related capabilities on both IB and vendor channels.

In addition to the IB capabilities the driver reports some extra
capabilities on its vendor channel:
- Bit mask of the supported types of hash functions.
- Bit mask of the supported RX fields that can participate
  in the RX hashing.

Those capabilities are applicable only when the link layer
is Ethernet.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-07 16:54:13 -04:00
Christoph Hellwig
ed082d36a7 IB/core: add support to create a unsafe global rkey to ib_create_pd
Instead of exposing ib_get_dma_mr to ULPs and letting them use it more or
less unchecked, this moves the capability of creating a global rkey into
the RDMA core, where it can be easily audited.  It also prints a warning
everytime this feature is used as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-23 13:47:44 -04:00
Doug Ledford
64278fe89b Merge branch 'hns-roce' into k.o/for-4.9 2016-08-25 10:05:23 -04:00
Salil
528f1deb16 IB/hns: Add support of ACPI to the Hisilicon RoCE driver
This patch is meant to add support of ACPI to the Hisilicon RoCE
driver.

Changes done are primarily meant to detect the type and then either
use DT specific or ACPI spcific functions. Where ever possible,
this patch tries to make use of Unified Device Property Interface
APIs to support both DT and ACPI through single interface.

This patch depends upon HNS ethernet driver to Reset RoCE. This
function within HNS ethernet driver has also been enhanced to
support ACPI and is part of other accompanying patch with this
patch-set.

NOTE: The changes in this patch are done over below branch,
https://github.com/dledford/linux/tree/hns-roce

Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-25 10:05:10 -04:00
Doug Ledford
d68478dae3 Merge branch 'mlx5-shared' into k.o/for-4.9 2016-08-25 10:02:43 -04:00
Wei Yongjun
204f69ba64 IB/hns: Fix return value check in hns_roce_get_cfg()
In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-22 14:13:18 -04:00
oulijun
8793f779cf IB/hns: Kconfig and Makefile for RoCE module
This patch added Kconfig and Makefile for building RoCE module.

Signed-off-by: Wei Hu <xavier.huwei@huawei.com>
Signed-off-by: Nenglong Zhao <zhaonenglong@hisilicon.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-22 14:02:33 -04:00
oulijun
9a4435375c IB/hns: Add driver files for hns RoCE driver
These are the various new source code files for the Hisilicon
RoCE driver for ARM architecture.

Signed-off-by: Wei Hu <xavier.huwei@huawei.com>
Signed-off-by: Nenglong Zhao <zhaonenglong@hisilicon.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-22 14:02:32 -04:00
Noa Osherovich
d5beb7f2af net/mlx5: Separate query_port_proto_oper for IB and EN
Replaced mlx5_query_port_proto_oper with separate functions per link
type. The functions should take different arguments so no point in
trying to unite them.

Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-18 18:49:52 +03:00
Saeed Mahameed
c4f287c4a6 net/mlx5: Unify and improve command interface
Now as all commands use mlx5 ifc interface, instead of doing two calls
for executing a command we embed command status checking into
mlx5_cmd_exec to simplify the interface.

Also we do here some cleanup for redundant software structures
(inbox/outbox) and functions and improved command failure output.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-17 17:45:58 +03:00
Saeed Mahameed
1a412fb1ca {net,IB}/mlx5: Modify QP commands via mlx5 ifc
Prior to this patch we assumed that modify QP commands have the
same layout.

In ConnectX-4 for each QP transition there is a specific command
and their layout can vary.

e.g: 2err/2rst commands don't have QP context in their layout and before
this patch we posted the QP context in those commands.

Fortunately the FW only checks the suffix of the commands and executes
them, while ignoring all invalid data sent after the valid command
layout.

This patch removes mlx5_modify_qp_mbox_in and changes
mlx5_core_qp_modify to receive the required transition and QP context
with opt_param_mask if needed.  This way the caller is not required to
provide the command inbox layout and it will be generated automatically.

mlx5_core_qp_modify will generate the command inbox/outbox layouts
according to the requested transition and will fill the requested
parameters.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-17 17:45:58 +03:00
Saeed Mahameed
09a7d9eca1 {net,IB}/mlx5: QP/XRCD commands via mlx5 ifc
Remove old representation of manually created QP/XRCD commands layout
amd use mlx5_ifc canonical structures and defines.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-17 17:45:57 +03:00
Saeed Mahameed
ec22eb5310 {net,IB}/mlx5: MKey/PSV commands via mlx5 ifc
Remove old representation of manually created MKey/PSV commands layout,
and use mlx5_ifc canonical structures and defines.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-14 14:39:18 +03:00
Saeed Mahameed
2782778663 {net,IB}/mlx5: CQ commands via mlx5 ifc
Remove old representation of manually created CQ commands layout,
and use mlx5_ifc canonical structures and defines.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-14 14:39:15 +03:00
Linus Torvalds
84e39eeb08 Second round of merge items for 4.8
- hfi1 driver updates
 - Fix for max SGEs allowed via RDMA R/W API
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Merge tag 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull second round of rdma updates from Doug Ledford:
 "This can be split out into just two categories:

   - fixes to the RDMA R/W API in regards to SG list length limits
     (about 5 patches)

   - fixes/features for the Intel hfi1 driver (everything else)

  The hfi1 driver is still being brought to full feature support by
  Intel, and they have a lot of people working on it, so that amounts to
  almost the entirety of this pull request"

* tag 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (84 commits)
  IB/hfi1: Add cache evict LRU list
  IB/hfi1: Fix memory leak during unexpected shutdown
  IB/hfi1: Remove unneeded mm argument in remove function
  IB/hfi1: Consistently call ops->remove outside spinlock
  IB/hfi1: Use evict mmu rb operation
  IB/hfi1: Add evict operation to the mmu rb handler
  IB/hfi1: Fix TID caching actions
  IB/hfi1: Make the cache handler own its rb tree root
  IB/hfi1: Make use of mm consistent
  IB/hfi1: Fix user SDMA racy user request claim
  IB/hfi1: Fix error condition that needs to clean up
  IB/hfi1: Release node on insert failure
  IB/hfi1: Validate SDMA user iovector count
  IB/hfi1: Validate SDMA user request index
  IB/hfi1: Use the same capability state for all shared contexts
  IB/hfi1: Prevent null pointer dereference
  IB/hfi1: Rename TID mmu_rb_* functions
  IB/hfi1: Remove unneeded empty check in hfi1_mmu_rb_unregister()
  IB/hfi1: Restructure hfi1_file_open
  IB/hfi1: Make iovec loop index easy to understand
  ...
2016-08-04 20:26:31 -04:00
Linus Torvalds
0cda611386 Round one of 4.8 code
- Updates/fixes for iw_cxgb4 driver
 - Updates/fixes for mlx5 driver
 - Add flow steering and RSS API
 - Add hardware stats to mlx4 and mlx5 drivers
 - Add firmware version API for RDMA driver use
 - Add the rxe driver (this is a software RoCE driver that makes any
   Ethernet device a RoCE device)
 - Fixes for i40iw driver
 - Support for send only multicast joins in the cma layer
 - Other minor fixes
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull base rdma updates from Doug Ledford:
 "Round one of 4.8 code: while this is mostly normal, there is a new
  driver in here (the driver was hosted outside the kernel for several
  years and is actually a fairly mature and well coded driver).  It
  amounts to 13,000 of the 16,000 lines of added code in here.

  Summary:

   - Updates/fixes for iw_cxgb4 driver
   - Updates/fixes for mlx5 driver
   - Add flow steering and RSS API
   - Add hardware stats to mlx4 and mlx5 drivers
   - Add firmware version API for RDMA driver use
   - Add the rxe driver (this is a software RoCE driver that makes any
     Ethernet device a RoCE device)
   - Fixes for i40iw driver
   - Support for send only multicast joins in the cma layer
   - Other minor fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (72 commits)
  Soft RoCE driver
  IB/core: Support for CMA multicast join flags
  IB/sa: Add cached attribute containing SM information to SA port
  IB/uverbs: Fix race between uverbs_close and remove_one
  IB/mthca: Clean up error unwind flow in mthca_reset()
  IB/mthca: NULL arg to pci_dev_put is OK
  IB/hfi1: NULL arg to sc_return_credits is OK
  IB/mlx4: Add diagnostic hardware counters
  net/mlx4: Query performance and diagnostics counters
  net/mlx4: Add diagnostic counters capability bit
  Use smaller 512 byte messages for portmapper messages
  IB/ipoib: Report SG feature regardless of HW UD CSUM capability
  IB/mlx4: Don't use GFP_ATOMIC for CQ resize struct
  IB/hfi1: Disable by default
  IB/rdmavt: Disable by default
  IB/mlx5: Fix port counter ID association to QP offset
  IB/mlx5: Fix iteration overrun in GSI qps
  i40iw: Add NULL check for puda buffer
  i40iw: Change dup_ack_thresh to u8
  i40iw: Remove unnecessary check for moving CQ head
  ...
2016-08-04 20:10:31 -04:00
Doug Ledford
7f1d25b47d Merge branches 'misc' and 'rxe' into k.o/for-4.8-1 2016-08-04 11:13:47 -04:00
Markus Elfring
380bae5bf2 IB/mthca: Clean up error unwind flow in mthca_reset()
The kfree() function was called in a few cases by the mthca_reset()
function during error handling even if the passed variables "bridge_header"
and "hca_header" contained a null pointer.

Adjust jump targets according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-03 21:03:35 -04:00
Markus Elfring
3491ab63b4 IB/mthca: NULL arg to pci_dev_put is OK
The pci_dev_put() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-03 21:03:35 -04:00
Markus Elfring
f7ca535ba0 IB/hfi1: NULL arg to sc_return_credits is OK
The sc_return_credits() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-03 21:03:35 -04:00
Mark Bloch
3f85f2aaab IB/mlx4: Add diagnostic hardware counters
Expose IB diagnostic hardware counters.
The counters count IB events and are applicable for IB and RoCE.

The counters can be divided into two groups, per device and per port.
Device counters are always exposed.
Port counters are exposed only if the firmware supports per port counters.

rq_num_dup and sq_num_to are only exposed if we have firmware support
for them, if we do, we expose them per device and per port.
rq_num_udsdprd and num_cqovf are device only counters.

rq - denotes responder.
sq - denotes requester.

|-----------------------|---------------------------------------|
|	Name		|	Description			|
|-----------------------|---------------------------------------|
|rq_num_lle		| Number of local length errors		|
|-----------------------|---------------------------------------|
|sq_num_lle		| number of local length errors		|
|-----------------------|---------------------------------------|
|rq_num_lqpoe		| Number of local QP operation errors	|
|-----------------------|---------------------------------------|
|sq_num_lqpoe		| Number of local QP operation errors	|
|-----------------------|---------------------------------------|
|rq_num_lpe		| Number of local protection errors	|
|-----------------------|---------------------------------------|
|sq_num_lpe		| Number of local protection errors	|
|-----------------------|---------------------------------------|
|rq_num_wrfe		| Number of CQEs with error		|
|-----------------------|---------------------------------------|
|sq_num_wrfe		| Number of CQEs with error		|
|-----------------------|---------------------------------------|
|sq_num_mwbe		| Number of Memory Window bind errors	|
|-----------------------|---------------------------------------|
|sq_num_bre		| Number of bad response errors		|
|-----------------------|---------------------------------------|
|sq_num_rire		| Number of Remote Invalid request	|
|			| errors				|
|-----------------------|---------------------------------------|
|rq_num_rire		| Number of Remote Invalid request	|
|			| errors				|
|-----------------------|---------------------------------------|
|sq_num_rae		| Number of remote access errors	|
|-----------------------|---------------------------------------|
|rq_num_rae		| Number of remote access errors	|
|-----------------------|---------------------------------------|
|sq_num_roe		| Number of remote operation errors	|
|-----------------------|---------------------------------------|
|sq_num_tree		| Number of transport retries exceeded	|
|			| errors				|
|-----------------------|---------------------------------------|
|sq_num_rree		| Number of RNR NAK retries exceeded	|
|			| errors				|
|-----------------------|---------------------------------------|
|rq_num_rnr		| Number of RNR NAKs sent		|
|-----------------------|---------------------------------------|
|sq_num_rnr		| Number of RNR NAKs received		|
|-----------------------|---------------------------------------|
|rq_num_oos		| Number of Out of Sequence requests	|
|			| received				|
|-----------------------|---------------------------------------|
|sq_num_oos		| Number of Out of Sequence NAKs	|
|			| received				|
|-----------------------|---------------------------------------|
|rq_num_udsdprd		| Number of UD packets silently		|
|			| discarded on the Receive Queue due to	|
|			| lack of receive descriptor		|
|-----------------------|---------------------------------------|
|rq_num_dup		| Number of duplicate requests received	|
|-----------------------|---------------------------------------|
|sq_num_to		| Number of time out received		|
|-----------------------|---------------------------------------|
|num_cqovf		| Number of CQ overflows		|
|-----------------------|---------------------------------------|

Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-03 21:03:34 -04:00
Roland Dreier
0c87b67209 IB/mlx4: Don't use GFP_ATOMIC for CQ resize struct
We allocate a small tracking structure as part of mlx4_ib_resize_cq().
However, we don't need to use GFP_ATOMIC -- immediately after the
allocation, we call mlx4_cq_resize(), which allocates a command
mailbox with GFP_KERNEL and then sleeps on a firmware command, so we
better not be in an atomic context.

This actually has a real impact, because when this GFP_ATOMIC
allocation fails (and GFP_ATOMIC does fail in practice) then a
userspace consumer resizing a CQ will get a spurious failure that we
can easily avoid.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-03 21:03:32 -04:00
Bart Van Assche
a154a8cd08 IB/hfi1: Disable by default
There is a strict policy in the Linux kernel that new drivers must be
disabled by default. Hence leave out the "default m" line from Kconfig.

Fixes: f48ad614c1 ("IB/hfi1: Move driver out of staging")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Jubin John <jubin.john@intel.com>
Cc: Dennis Dalessandro <dennis.dalessandro@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Mike Marciniszyn <mike.marciniszyn@intel.com>
Cc: <stable@vger.kernel.org> # v4.7+
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-08-03 21:03:32 -04:00