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Author SHA1 Message Date
Chuck Lever
3e5901cbfc RDMA/core: Trace points for diagnosing completion queue issues
Sample trace events:

   kworker/u29:0-300   [007]   120.042217: cq_alloc:             cq.id=4 nr_cqe=161 comp_vector=2 poll_ctx=WORKQUEUE
          <idle>-0     [002]   120.056292: cq_schedule:          cq.id=4
    kworker/2:1H-482   [002]   120.056402: cq_process:           cq.id=4 wake-up took 109 [us] from interrupt
    kworker/2:1H-482   [002]   120.056407: cq_poll:              cq.id=4 requested 16, returned 1
          <idle>-0     [002]   120.067503: cq_schedule:          cq.id=4
    kworker/2:1H-482   [002]   120.067537: cq_process:           cq.id=4 wake-up took 34 [us] from interrupt
    kworker/2:1H-482   [002]   120.067541: cq_poll:              cq.id=4 requested 16, returned 1
          <idle>-0     [002]   120.067657: cq_schedule:          cq.id=4
    kworker/2:1H-482   [002]   120.067672: cq_process:           cq.id=4 wake-up took 15 [us] from interrupt
    kworker/2:1H-482   [002]   120.067674: cq_poll:              cq.id=4 requested 16, returned 1

 ...

         systemd-1     [002]   122.392653: cq_schedule:          cq.id=4
    kworker/2:1H-482   [002]   122.392688: cq_process:           cq.id=4 wake-up took 35 [us] from interrupt
    kworker/2:1H-482   [002]   122.392693: cq_poll:              cq.id=4 requested 16, returned 16
    kworker/2:1H-482   [002]   122.392836: cq_poll:              cq.id=4 requested 16, returned 16
    kworker/2:1H-482   [002]   122.392970: cq_poll:              cq.id=4 requested 16, returned 16
    kworker/2:1H-482   [002]   122.393083: cq_poll:              cq.id=4 requested 16, returned 16
    kworker/2:1H-482   [002]   122.393195: cq_poll:              cq.id=4 requested 16, returned 3

Several features to note in this output:
 - The WCE count and context type are reported at allocation time
 - The CPU and kworker for each CQ is evident
 - The CQ's restracker ID is tagged on each trace event
 - CQ poll scheduling latency is measured
 - Details about how often single completions occur versus multiple
   completions are evident
 - The cost of the ULP's completion handler is recorded

Link: https://lore.kernel.org/r/20191218201815.30584.3481.stgit@manet.1015granger.net
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-01-07 16:10:53 -04:00
Linus Torvalds
d768869728 RDMA subsystem updates for 5.5
Mainly a collection of smaller of driver updates this cycle.
 
 - Various driver updates and bug fixes for siw, bnxt_re, hns, qedr,
   iw_cxgb4, vmw_pvrdma, mlx5
 
 - Improvements in SRPT from working with iWarp
 
 - SRIOV VF support for bnxt_re
 
 - Skeleton kernel-doc files for drivers/infiniband
 
 - User visible counters for events related to ODP
 
 - Common code for tracking of mmap lifetimes so that drivers can link HW
   object liftime to a VMA
 
 - ODP bug fixes and rework
 
 - RDMA READ support for efa
 
 - Removal of the very old cxgb3 driver
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "Again another fairly quiet cycle with few notable core code changes
  and the usual variety of driver bug fixes and small improvements.

   - Various driver updates and bug fixes for siw, bnxt_re, hns, qedr,
     iw_cxgb4, vmw_pvrdma, mlx5

   - Improvements in SRPT from working with iWarp

   - SRIOV VF support for bnxt_re

   - Skeleton kernel-doc files for drivers/infiniband

   - User visible counters for events related to ODP

   - Common code for tracking of mmap lifetimes so that drivers can link
     HW object liftime to a VMA

   - ODP bug fixes and rework

   - RDMA READ support for efa

   - Removal of the very old cxgb3 driver"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (168 commits)
  RDMA/hns: Delete unnecessary callback functions for cq
  RDMA/hns: Rename the functions used inside creating cq
  RDMA/hns: Redefine the member of hns_roce_cq struct
  RDMA/hns: Redefine interfaces used in creating cq
  RDMA/efa: Expose RDMA read related attributes
  RDMA/efa: Support remote read access in MR registration
  RDMA/efa: Store network attributes in device attributes
  IB/hfi1: remove redundant assignment to variable ret
  RDMA/bnxt_re: Fix missing le16_to_cpu
  RDMA/bnxt_re: Fix stat push into dma buffer on gen p5 devices
  RDMA/bnxt_re: Fix chip number validation Broadcom's Gen P5 series
  RDMA/bnxt_re: Fix Kconfig indentation
  IB/mlx5: Implement callbacks for getting VFs GUID attributes
  IB/ipoib: Add ndo operation for getting VFs GUID attributes
  IB/core: Add interfaces to get VF node and port GUIDs
  net/core: Add support for getting VF GUIDs
  RDMA/qedr: Fix null-pointer dereference when calling rdma_user_mmap_get_offset
  RDMA/cm: Use refcount_t type for refcount variable
  IB/mlx5: Support extended number of strides for Striding RQ
  IB/mlx4: Update HW GID table while adding vlan GID
  ...
2019-11-27 10:17:28 -08:00
Jason Gunthorpe
3694e41e41 Merge branch 'ib-guids' into rdma.git for-next
Danit Goldberg says:

====================
This series extends RTNETLINK to provide IB port and node GUIDs, which
were configured for Infiniband VFs.

The functionality to set VF GUIDs already existed for a long time, and
here we are adding the missing "get" so that netlink will be symmetric and
various cloud orchestration tools will be able to manage such VFs more
naturally.

The iproute2 was extended too to present those GUIDs.

- ip link show <device>

For example:
- ip link set ib4 vf 0 node_guid 22:44:33:00:33:11:00:33
- ip link set ib4 vf 0 port_guid 10:21:33:12:00:11:22:10
- ip link show ib4
    ib4: <BROADCAST,MULTICAST> mtu 4092 qdisc noop state DOWN mode DEFAULT group default qlen 256
    link/infiniband 00:00:0a:2d:fe:80:00:00:00:00:00:00:ec:0d:9a:03:00:44:36:8d brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
    vf 0     link/infiniband 00:00:0a:2d:fe:80:00:00:00:00:00:00:ec:0d:9a:03:00:44:36:8d brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff,
    spoof checking off, NODE_GUID 22:44:33:00:33:11:00:33, PORT_GUID 10:21:33:12:00:11:22:10, link-state disable, trust off, query_rss off
====================

Based on the mlx5-next branch from
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux for
dependencies

* branch 'ib-guids': (35 commits)
  IB/mlx5: Implement callbacks for getting VFs GUID attributes
  IB/ipoib: Add ndo operation for getting VFs GUID attributes
  IB/core: Add interfaces to get VF node and port GUIDs
  net/core: Add support for getting VF GUIDs

  net/mlx5: Add new chain for netfilter flow table offload
  net/mlx5: Refactor creating fast path prio chains
  net/mlx5: Accumulate levels for chains prio namespaces
  net/mlx5: Define fdb tc levels per prio
  net/mlx5: Rename FDB_* tc related defines to FDB_TC_* defines
  net/mlx5: Simplify fdb chain and prio eswitch defines
  IB/mlx5: Load profile according to RoCE enablement state
  IB/mlx5: Rename profile and init methods
  net/mlx5: Handle "enable_roce" devlink param
  net/mlx5: Document flow_steering_mode devlink param
  devlink: Add new "enable_roce" generic device param
  net/mlx5: fix spelling mistake "metdata" -> "metadata"
  net/mlx5: fix kvfree of uninitialized pointer spec
  IB/mlx5: Introduce and use mlx5_core_is_vf()
  net/mlx5: E-switch, Enable metadata on own vport
  net/mlx5: Refactor ingress acl configuration
  ...

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-11-25 10:31:47 -04:00
Danit Goldberg
bfcb3c5d14 IB/core: Add interfaces to get VF node and port GUIDs
Provide ability to get node and port GUIDs of VFs to be symmetrical
to already existing set option.

Signed-off-by: Danit Goldberg <danitg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-11-22 18:17:24 +02:00
rd.dunlab@gmail.com
094c88f3c5 infiniband: fix core/verbs.c kernel-doc notation
Add missing function parameter descriptions:

../drivers/infiniband/core/verbs.c:257: warning: Function parameter or member 'flags' not described in '__ib_alloc_pd'
../drivers/infiniband/core/verbs.c:257: warning: Function parameter or member 'caller' not described in '__ib_alloc_pd'

Link: https://lore.kernel.org/r/20191010035240.011497492@gmail.com
Signed-off-by: Randy Dunlap <rd.dunlab@gmail.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-22 14:52:56 -03:00
Parav Pandit
777a8b32bc IB/core: Use rdma_read_gid_l2_fields to compare GID L2 fields
Current code tries to derive VLAN ID and compares it with GID
attribute for matching entry. This raw search fails on macvlan
netdevice as its not a VLAN device, but its an upper device of a VLAN
netdevice.

Due to this limitation, incoming QP1 packets fail to match in the
GID table. Such packets are dropped.

Hence, to support it, use the existing rdma_read_gid_l2_fields()
that takes care of diffferent device types.

Fixes: dbf727de74 ("IB/core: Use GID table in AH creation and dmac resolution")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20191002121750.17313-1-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-10-18 14:55:33 -04:00
Parav Pandit
56594ae1d2 RDMA/core: Annotate destroy of mutex to ensure that it is released as unlocked
While compiled with CONFIG_DEBUG_MUTEXES, the kernel ensures that mutex is
not held during destroy. Hence add mutex_destroy() for mutexes used in
RDMA modules.

Link: https://lore.kernel.org/r/20190723065733.4899-2-leon@kernel.org
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-07-25 12:07:14 -03:00
Mark Zhang
99fa331dc8 RDMA/counter: Add "auto" configuration mode support
In auto mode all QPs belong to one category are bind automatically to a
single counter set. Currently only "qp type" is supported.

In this mode the qp counter is set in RST2INIT modification, and when a qp
is destroyed the counter is unbound.

Signed-off-by: Mark Zhang <markz@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-07-05 10:22:54 -03:00
Max Gurtovoy
185eddc457 RDMA/core: Validate integrity handover device cap
Protect the case that a ULP tries to allocate a QP with signature
enabled flag while the LLD doesn't support this feature.
While we're here, also move integrity_en attribute from mlx5_qp to
ib_qp as a preparation for adding new integrity API to the rw-API
(that is part of ib_core module).

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-24 11:49:27 -03:00
Max Gurtovoy
7c717d3aee RDMA/core: Add signature attrs element for ib_mr structure
This element will describe the needed characteristics for the signature
operation per signature enabled memory region (type IB_MR_TYPE_INTEGRITY).
Also add meta_length attribute to ib_sig_attrs structure for saving the
mapped metadata length (needed for the new API implementation).

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-24 11:49:26 -03:00
Max Gurtovoy
2cdfcdd867 RDMA/core: Introduce ib_map_mr_sg_pi to map data/protection sgl's
This function will map the previously dma mapped SG lists for PI
(protection information) and data to an appropriate memory region for
future registration.
The given MR must be allocated as IB_MR_TYPE_INTEGRITY.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-24 11:49:26 -03:00
Israel Rukshin
26bc7eaee9 RDMA/core: Introduce IB_MR_TYPE_INTEGRITY and ib_alloc_mr_integrity API
This is a preparation for signature verbs API re-design. In the new
design a single MR with IB_MR_TYPE_INTEGRITY type will be used to perform
the needed mapping for data integrity operations.

Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-24 11:49:26 -03:00
Max Gurtovoy
a0bc099abf RDMA/core: Save the MR type in the ib_mr structure
This is a preparation for the signature verbs API change. This change is
needed since the MR type will define, in the upcoming patches, the need
for allocating internal resources in LLD for signature handover related
operations. It will also help to make sure that signature related
functions are called with an appropriate MR type and fail otherwise.
Also introduce new mr types IB_MR_TYPE_USER, IB_MR_TYPE_DMA and
IB_MR_TYPE_DM for correctness.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-24 11:49:26 -03:00
Leon Romanovsky
a49b1dc7ae RDMA: Convert destroy_wq to be void
All callers of destroy WQ are always success and there is no need
to check their return value, so convert destroy_wq to be void.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-06-20 14:37:02 -04:00
Jason Gunthorpe
5d60c11154 RDMA: Move rdma_node_type to uapi/
This enum is exposed over the sysfs file 'node_type' and over netlink via
RDMA_NLDEV_ATTR_DEV_NODE_TYPE, so declare it in the uapi headers.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-06-17 14:58:59 -04:00
Leon Romanovsky
e39afe3d6d RDMA: Convert CQ allocations to be under core responsibility
Ensure that CQ is allocated and freed by IB/core and not by drivers.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Gal Pressman <galpress@amazon.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Tested-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-06-11 16:39:49 -04:00
Leon Romanovsky
a52c8e2469 RDMA: Clean destroy CQ in drivers do not return errors
Like all other destroy commands, .destroy_cq() call is not supposed
to fail. In all flows, the attempt to return earlier caused to memory
leaks.

This patch converts .destroy_cq() to do not return any errors.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Gal Pressman <galpress@amazon.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-06-11 16:17:10 -04:00
Israel Rukshin
91f571293e RDMA/core: Fix doc typo
Use the correct function names.

Fixes: c4367a2635 ("IB: Pass uverbs_attr_bundle down ib_x destroy path")
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-21 15:01:06 -03:00
Gal Pressman
f95be3d28d RDMA: Add EFA related definitions
Add EFA driver ID to the IOCTL interface uapi. This patch also adds
unspecified node/transport type that will be used by EFA (usnic is left
unchanged as it's already part of our ABI).

Signed-off-by: Gal Pressman <galpress@amazon.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-06 13:47:50 -03:00
Shiraz Saleem
a808273a49 RDMA/verbs: Add a DMA iterator to return aligned contiguous memory blocks
This helper iterates over a DMA-mapped SGL and returns contiguous memory
blocks aligned to a HW supported page size.

Suggested-by: Jason Gunthorpe <jgg@ziepe.ca>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-06 13:08:11 -03:00
Artemy Kovalyov
1a418f7764 IB/core: Set qp->real_qp before it may be accessed
real_qp should be initialized before ib_destroy_qp() is called.
ib_destroy_qp() may be called in the error flow if ib_create_qp_security()
failed.

Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-03 10:17:45 -03:00
Leon Romanovsky
68e326dea1 RDMA: Handle SRQ allocations by IB/core
Convert SRQ allocation from drivers to be in the IB/core

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-08 13:05:25 -03:00
Leon Romanovsky
d345691471 RDMA: Handle AH allocations by IB/core
Simplify drivers by ensuring lifetime of ib_ah object. The changes
in .create_ah() go hand in hand with relevant update in .destroy_ah().

We will use this opportunity and convert .destroy_ah() to don't fail, as
it was suggested a long time ago, because there is nothing to do in case
of failure during destroy.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-08 13:05:25 -03:00
Shamir Rabinovitch
ff23dfa134 IB: Pass only ib_udata in function prototypes
Now when ib_udata is passed to all the driver's object create/destroy APIs
the ib_udata will carry the ib_ucontext for every user command. There is
no need to also pass the ib_ucontext via the functions prototypes.

Make ib_udata the only argument psssed.

Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-01 15:00:47 -03:00
Shamir Rabinovitch
c4367a2635 IB: Pass uverbs_attr_bundle down ib_x destroy path
The uverbs_attr_bundle with the ucontext is sent down to the drivers ib_x
destroy path as ib_udata. The next patch will use the ib_udata to free the
drivers destroy path from the dependency in 'uobject->context' as we
already did for the create path.

Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-01 14:57:35 -03:00
Jason Gunthorpe
c2261dd76b RDMA/device: Add ib_device_set_netdev() as an alternative to get_netdev
The associated netdev should not actually be very dynamic, so for most
drivers there is no reason for a callback like this. Provide an API to
inform the core code about the net dev affiliation and use a core
maintained data structure instead.

This allows the core code to be more aware of the ndev relationship which
will allow some new APIs based around this.

This also uses locking that makes some kind of sense, many drivers had a
confusing RCU lock, or missing locking which isn't right.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-19 20:52:18 -07:00
Leon Romanovsky
21a428a019 RDMA: Handle PD allocations by IB/core
The PD allocations in IB/core allows us to simplify drivers and their
error flows in their .alloc_pd() paths. The changes in .alloc_pd() go hand
in had with relevant update in .dealloc_pd().

We will use this opportunity and convert .dealloc_pd() to don't fail, as
it was suggested a long time ago, failures are not happening as we have
never seen a WARN_ON print.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-08 16:51:04 -07:00
Yuval Avnery
535005ca8e IB/core: Destroy QP if XRC QP fails
The open-coded variant missed destroy of SELinux created QP, reuse already
existing ib_detroy_qp() call and use this opportunity to clean
ib_create_qp() from double prints and unclear exit paths.

Reported-by: Parav Pandit <parav@mellanox.com>
Fixes: d291f1a652 ("IB/core: Enforce PKey security on QPs")
Signed-off-by: Yuval Avnery <yuvalav@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-01-24 09:22:30 -07:00
Gal Pressman
2553ba217e RDMA: Mark if destroy address handle is in a sleepable context
Introduce a 'flags' field to destroy address handle callback and add a
flag that marks whether the callback is executed in an atomic context or
not.

This will allow drivers to wait for completion instead of polling for it
when it is allowed.

Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-19 16:28:03 -07:00
Gal Pressman
b090c4e3a0 RDMA: Mark if create address handle is in a sleepable context
Introduce a 'flags' field to create address handle callback and add a flag
that marks whether the callback is executed in an atomic context or not.

This will allow drivers to wait for completion instead of polling for it
when it is allowed.

Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-19 16:17:19 -07:00
Shamir Rabinovitch
af8d70375d RDMA/restrack: Resource-tracker should not use uobject pointers
Having uobject pointer embedded in ib core objects is not aligned with a
future shared ib_x model. The resource tracker only does this to keep
track of user/kernel objects - track this directly instead.

Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-18 15:38:26 -07:00
Kamal Heib
3023a1e936 RDMA: Start use ib_device_ops
Make all the required change to start use the ib_device_ops structure.

Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-12 07:40:16 -07:00
Michael Guralnik
a5a5d19936 IB/core: Add new IB rates
Add the new rates that were added to Infiniband spec as part of HDR and 2x
support.

Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-11 13:22:45 -07:00
Linus Torvalds
da19a102ce First merge window pull request
This has been a smaller cycle with many of the commits being smallish code
 fixes and improvements across the drivers.
 
 - Driver updates for bnxt_re, cxgb4, hfi1, hns, mlx5, nes, qedr, and rxe
 
 - Memory window support in hns
 
 - mlx5 user API 'flow mutate/steering' allows accessing the full packet
   mangling and matching machinery from user space
 
 - Support inter-working with verbs API calls in the 'devx' mlx5 user API, and
   provide options to use devx with less privilege
 
 - Modernize the use of syfs and the device interface to use attribute groups
   and cdev properly for uverbs, and clean up some of the core code's device list
   management
 
 - More progress on net namespaces for RDMA devices
 
 - Consolidate driver BAR mmapping support into core code helpers and rework
   how RDMA holds poitners to mm_struct for get_user_pages cases
 
 - First pass to use 'dev_name' instead of ib_device->name
 
 - Device renaming for RDMA devices
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "This has been a smaller cycle with many of the commits being smallish
  code fixes and improvements across the drivers.

   - Driver updates for bnxt_re, cxgb4, hfi1, hns, mlx5, nes, qedr, and
     rxe

   - Memory window support in hns

   - mlx5 user API 'flow mutate/steering' allows accessing the full
     packet mangling and matching machinery from user space

   - Support inter-working with verbs API calls in the 'devx' mlx5 user
     API, and provide options to use devx with less privilege

   - Modernize the use of syfs and the device interface to use attribute
     groups and cdev properly for uverbs, and clean up some of the core
     code's device list management

   - More progress on net namespaces for RDMA devices

   - Consolidate driver BAR mmapping support into core code helpers and
     rework how RDMA holds poitners to mm_struct for get_user_pages
     cases

   - First pass to use 'dev_name' instead of ib_device->name

   - Device renaming for RDMA devices"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (242 commits)
  IB/mlx5: Add support for extended atomic operations
  RDMA/core: Fix comment for hw stats init for port == 0
  RDMA/core: Refactor ib_register_device() function
  RDMA/core: Fix unwinding flow in case of error to register device
  ib_srp: Remove WARN_ON in srp_terminate_io()
  IB/mlx5: Allow scatter to CQE without global signaled WRs
  IB/mlx5: Verify that driver supports user flags
  IB/mlx5: Support scatter to CQE for DC transport type
  RDMA/drivers: Use core provided API for registering device attributes
  RDMA/core: Allow existing drivers to set one sysfs group per device
  IB/rxe: Remove unnecessary enum values
  RDMA/umad: Use kernel API to allocate umad indexes
  RDMA/uverbs: Use kernel API to allocate uverbs indexes
  RDMA/core: Increase total number of RDMA ports across all devices
  IB/mlx4: Add port and TID to MAD debug print
  IB/mlx4: Enable debug print of SMPs
  RDMA/core: Rename ports_parent to ports_kobj
  RDMA/core: Do not expose unsupported counters
  IB/mlx4: Refer to the device kobject instead of ports_parent
  RDMA/nldev: Allow IB device rename through RDMA netlink
  ...
2018-10-26 07:38:19 -07:00
Denis Drozdov
5d6b0cb336 RDMA/netdev: Fix netlink support in IPoIB
IPoIB netlink support was broken by the below commit since integrating
the rdma_netdev support relies on an allocation flow for netdevs that
was controlled by the ipoib driver while netdev's rtnl_newlink
implementation assumes that the netdev will be allocated by netlink.
Such situation leads to crash in __ipoib_device_add, once trying to
reuse netlink device.

This patch fixes the kernel oops for both mlx4 and mlx5
devices triggered by the following command:

Fixes: cd565b4b51 ("IB/IPoIB: Support acceleration options callbacks")
Signed-off-by: Denis Drozdov <denisd@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-10-10 17:58:12 -07:00
Denis Drozdov
f6a8a19bb1 RDMA/netdev: Hoist alloc_netdev_mqs out of the driver
netdev has several interfaces that expect to call alloc_netdev_mqs from
the core code, with the driver only providing the arguments.  This is
incompatible with the rdma_netdev interface that returns the netdev
directly.

Thus re-organize the API used by ipoib so that the verbs core code calls
alloc_netdev_mqs for the driver. This is done by allowing the drivers to
provide the allocation parameters via a 'get_params' callback and then
initializing an allocated netdev as a second step.

Fixes: cd565b4b51 ("IB/IPoIB: Support acceleration options callbacks")
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Denis Drozdov <denisd@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-10-10 17:58:11 -07:00
Leon Romanovsky
2165fc2640 RDMA/restrack: Consolidate task name updates in one place
Unify task update and kernel name set in one place.

Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Reviewed-by: Yossi Itigin <yosefe@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-05 16:07:39 -06:00
Kamal Heib
d31131bba5 RDMA: Remove unused parameter from ib_modify_qp_is_ok()
The ll parameter is not used in ib_modify_qp_is_ok(), so remove it.

Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03 16:05:46 -06:00
Jason Gunthorpe
43c7c851b9 RDMA/core: Use dev_err/dbg/etc instead of pr_* + ibdev->name
Any messages related to a device should be printed with the dev_*
formatters. This provides greater consistency for the user.

The core does not set pr_fmt so this has no significant change.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
2018-09-26 13:51:48 -06:00
Parav Pandit
0e9d2c19bf RDMA/core: Consider net ns of gid attribute for RoCE
When resolving destination address or route, when net namespace is
unavailable, refer to the net namespace of the netdevice of the SGID
attribute. This is typically the case for requests arriving from the
network for RoCE ports.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-12 16:32:17 -06:00
Jason Gunthorpe
89982f7cce Linux 4.18
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Merge tag 'v4.18' into rdma.git for-next

Resolve merge conflicts from the -rc cycle against the rdma.git tree:

Conflicts:
 drivers/infiniband/core/uverbs_cmd.c
  - New ifs added to ib_uverbs_ex_create_flow in -rc and for-next
  - Merge removal of file->ucontext in for-next with new code in -rc
 drivers/infiniband/core/uverbs_main.c
  - for-next removed code from ib_uverbs_write() that was modified
    in for-rc

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-08-16 13:12:00 -06:00
Kamal Heib
0584c47bbc RDMA/core: Check for verbs callbacks before using them
Make sure the providers implement the verbs callbacks before calling
them, otherwise return -EOPNOTSUPP.

Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-30 20:31:09 -06:00
Bart Van Assche
1fec77bf8f RDMA/core: Simplify ib_post_(send|recv|srq_recv)() calls
Instead of declaring and passing a dummy 'bad_wr' pointer, pass NULL
as third argument to ib_post_(send|recv|srq_recv)().

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-24 16:06:36 -06:00
Artemy Kovalyov
b02289b3d6 RDMA: Validate grh_required when handling AVs
Extend the existing grh_required flag to check when AV's are handled that
a GRH is present.

Since we don't want to do query_port during the AV checks for performance
reasons move the flag into the immutable_data.

Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-10 11:13:04 -06:00
Jason Gunthorpe
7a5c938b9e IB/core: Check for rdma_protocol_ib only after validating port_num
port_num is untrusted data from the user, so it should be checked after
calling fill_sgid_attr, which validates it.

Fixes: 8d9ec9addd ("IB/core: Add a sgid_attr pointer to struct rdma_ah_attr")
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-27 15:05:58 -06:00
Leon Romanovsky
1ccddc42da RDMA/verbs: Drop kernel variant of destroy_flow
Following the removal of ib_create_flow(), adjust the code to get rid of
ib_destroy_flow() too.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-25 15:22:01 -06:00
Leon Romanovsky
ca576fbbdc RDMA/verbs: Drop kernel variant of create_flow
There are no kernel users of this interface so lets drop it.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-25 15:22:01 -06:00
Parav Pandit
b740321765 IB: Make ib_init_ah_attr_from_wc set sgid_attr
The work completion is inspected to determine what dgid table entry was
used to receieve the packet, produces a sgid_attr that matches and sticks
it in the ah_attr.

All callers of this function are now required to release the ah_attr on
success.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2018-06-25 14:19:56 -06:00
Bharat Potnuri
7350cdd025 RDMA/core: Save kernel caller name when creating CQ using ib_create_cq()
Few kernel applications like SCST-iSER create CQ using ib_create_cq(),
where accessing CQ structures using rdma restrack tool leads to below NULL
pointer dereference. This patch saves caller kernel module name similar to
ib_alloc_cq().

BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffff8132ca70>] skip_spaces+0x30/0x30
PGD 738bac067 PUD 8533f0067 PMD 0
Oops: 0000 [#1] SMP
R10: ffff88017fc03300 R11: 0000000000000246 R12: 0000000000000000
R13: ffff88082fa5a668 R14: ffff88017475a000 R15: 0000000000000000
FS:  00002b32726582c0(0000) GS:ffff88087fc40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000008491a1000 CR4: 00000000003607e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 [<ffffffffc05af69c>] ? fill_res_name_pid+0x7c/0x90 [ib_core]
 [<ffffffffc05af79f>] fill_res_cq_entry+0xef/0x170 [ib_core]
 [<ffffffffc05af4c4>] res_get_common_dumpit+0x3c4/0x480 [ib_core]
 [<ffffffffc05af5d3>] nldev_res_get_cq_dumpit+0x13/0x20 [ib_core]
 [<ffffffff815bc1e7>] netlink_dump+0x117/0x2e0
 [<ffffffff815bcb8b>] __netlink_dump_start+0x1ab/0x230
 [<ffffffffc059fead>] ibnl_rcv_msg+0x11d/0x1f0 [ib_core]
 [<ffffffffc05af5c0>] ? nldev_res_get_mr_dumpit+0x20/0x20 [ib_core]
 [<ffffffffc059fd90>] ? rdma_nl_multicast+0x30/0x30 [ib_core]
 [<ffffffff815bea49>] netlink_rcv_skb+0xa9/0xc0
 [<ffffffffc05a0018>] ibnl_rcv+0x98/0xb0 [ib_core]
 [<ffffffff815be132>] netlink_unicast+0xf2/0x1b0
 [<ffffffff815be50f>] netlink_sendmsg+0x31f/0x6a0
 [<ffffffff8156b580>] sock_sendmsg+0xb0/0xf0
 [<ffffffff816ace9e>] ? _raw_spin_unlock_bh+0x1e/0x20
 [<ffffffff8156f998>] ? release_sock+0x118/0x170
 [<ffffffff8156b731>] SYSC_sendto+0x121/0x1c0
 [<ffffffff81568340>] ? sock_alloc_file+0xa0/0x140
 [<ffffffff81221265>] ? __fd_install+0x25/0x60
 [<ffffffff8156c2ce>] SyS_sendto+0xe/0x10
 [<ffffffff816b6c2a>] system_call_fastpath+0x16/0x1b
RIP  [<ffffffff8132ca70>] skip_spaces+0x30/0x30
RSP <ffff88072be97760>
CR2: 0000000000000000

Cc: <stable@vger.kernel.org>
Fixes: f66c8ba4c9 ("RDMA/core: Save kernel caller name when creating PD and CQ objects")
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-18 11:32:58 -06:00
Jason Gunthorpe
1a1f460ff1 RDMA: Hold the sgid_attr inside the struct ib_ah/qp
If the AH has a GRH then hold a reference to the sgid_attr inside the
common struct.

If the QP is modified with an AV that includes a GRH then also hold a
reference to the sgid_attr inside the common struct.

This informs the cache that the sgid_index is in-use so long as the AH or
QP using it exists.

This also means that all drivers can access the sgid_attr directly from
the ah_attr instead of querying the cache during their UD post-send paths.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2018-06-18 11:11:27 -06:00