linux-toradex.git/include/uapi/rdma, branch v4.3-rc6

IB/hfi1: Add PSM2 user space header to header_install

2015-09-03T19:29:52+00:00

When the hfi1 driver was added a user space header file (hfi1_user.h) was added
to be shared between PSM2 and the driver.  However, the file was not added to
the header install.  Add it now.

Fixes: d4ab347005fb ("IB/core: Add core header changes needed for OPA")
Signed-off-by: Ira Weiny 
Signed-off-by: Doug Ledford

IB/netlink: Add defines for local service requests through netlink

2015-08-30T22:12:25+00:00

This patch adds netlink defines for local service client, local service
group, local service operations, and related attributes.

Signed-off-by: Kaike Wan 
Signed-off-by: John Fleck 
Signed-off-by: Ira Weiny 
Signed-off-by: Doug Ledford

IB/core: Add core header changes needed for OPA

2015-08-29T02:54:50+00:00

This patch adds the value of the CNP opcode to the existing list of enumerated
opcodes in ib_pack.h

Add common OPA header definitions for driver
build:
- opa_port_info.h
- opa_smi.h
- hfi1_user.h

Additionally, ib_mad.h, has additional definitions
that are common to ib_drivers including:
- trap support
- cca support

The qib driver has the duplication removed in favor
those in ib_mad.h

Reviewed-by: Mike Marciniszyn 
Reviewed-by: John, Jubin 
Signed-off-by: Ira Weiny 
Signed-off-by: Dennis Dalessandro 
Signed-off-by: Doug Ledford

IB/core: Add timestamp_mask and hca_core_clock to query_device

2015-06-12T18:49:10+00:00

In order to expose timestamp we need to expose two new attributes in
query_device to be used for CQ completion time-stamping:

timestamp_mask - how many bits are valid in the timestamp, where timestamp
values could be 64bits the most.

hca_core_clock - timestamp is given in HW cycles, the frequency in KHZ units
of the HCA, necessary in order to convert cycles to seconds.

This is added both to ib_query_device and its respective uverbs counterpart.

Signed-off-by: Matan Barak 
Signed-off-by: Or Gerlitz 
Signed-off-by: Doug Ledford

IB/core: Extend ib_uverbs_create_cq

2015-06-12T18:49:10+00:00

ib_uverbs_ex_create_cq follows the extension verbs
mechanism. New features (for example, CQ creation flags
field which is added in a downstream patch) could used
via user-space libraries without breaking the ABI.

Signed-off-by: Matan Barak 
Signed-off-by: Or Gerlitz 
Signed-off-by: Doug Ledford

RDMA/core: Enable the iWarp Port Mapper to provide the actual address of the connecting peer to its clients

2015-05-05T13:18:01+00:00

Add functionality to enable the port mapper on the passive side to provide to its
clients the actual (non-mapped) ip/tcp address information of the connecting peer

1) Adding remote_info_cb() to process the address info of the connecting peer
   The address info is provided by the user space port mapper service when
   the connection is initiated by the peer
2) Adding a hash list to store the remote address info
3) Adding functionality to add/remove the remote address info
   After the info has been provided to the port mapper client,
   it is removed from the hash list

Signed-off-by: Tatyana Nikolova 
Reviewed-by: Steve Wise 
Signed-off-by: Doug Ledford

IB/core: Add on demand paging caps to ib_uverbs_ex_query_device

2015-02-18T16:36:26+00:00

Add on-demand paging capabilities reporting to the extended query device verb.

Yann Droneaud writes:

    Note: as offsetof() is used to retrieve the size of the lower chunk
    of the response, beware that it only works if the upper chunk
    is right after, without any implicit padding. And, as the size of
    the latter chunk is added to the base size, implicit padding at the
    end of the structure is not taken in account. Both point must be
    taken in account when extending the uverbs functionalities.

Signed-off-by: Haggai Eran 
Reviewed-by: Yann Droneaud 
Signed-off-by: Roland Dreier

IB/core: Add support for extended query device caps

2015-02-18T16:36:26+00:00

Add extensible query device capabilities verb to allow adding new features.
ib_uverbs_ex_query_device is added and copy_query_dev_fields is used to copy
capability fields to be used by both ib_uverbs_query_device and
ib_uverbs_ex_query_device.

Following the discussion about this patch [1], the code now validates
the command's comp_mask is zero, returning -EINVAL for unknown values,
in order to allow extending the verb in the future.

The verb also checks the user-space provided response buffer size and
only fills in capabilities that will fit in the buffer. In attempt to
follow the spirit of presentation [2] by Tzahi Oved that was presented
during OpenFabrics Alliance International Developer Workshop 2013, the
comp_mask bits will only describe which fields are valid.  Furthermore,
fields that can simply be cleared when they are not supported, do not
require a comp_mask bit at all.  The verb returns a response_length
field containing the actual number of bytes written by the kernel, so
that a newer version running on an older kernel can tell which fields
were actually returned.

[1] [PATCH v1 0/5] IB/core: extended query device caps cleanup for v3.19
    http://thread.gmane.org/gmane.linux.kernel.api/7889/

[2] https://www.openfabrics.org/images/docs/2013_Dev_Workshop/Tues_0423/2013_Workshop_Tues_0830_Tzahi_Oved-verbs_extensions_ofa_2013-tzahio.pdf

Signed-off-by: Eli Cohen 
Signed-off-by: Haggai Eran 
Reviewed-by: Yann Droneaud 
Signed-off-by: Roland Dreier

Revert "IB/core: Add support for extended query device caps"

2015-02-06T08:54:33+00:00

While commit 7e36ef8205ff ("IB/core: Temporarily disable
ex_query_device uverb") is correct as it makes the extended
QUERY_DEVICE uverb (which came as part of commit 5a77abf9a97a
("IB/core: Add support for extended query device caps") and commit
860f10a799c8 ("IB/core: Add flags for on demand paging support")) not
available to userspace, it doesn't address the initial issue regarding
ib_copy_to_udata() [1][2].

Additionally, further discussions around this new uverb seems to
conclude it would require a different data structure than the one
currently described in  [3].

Both of these issues require a revert of the changes, so this patch
partially reverts commit 8cdd312cfed7 ("IB/mlx5: Implement the ODP
capability query verb") and commit 860f10a799c8 ("IB/core: Add flags
for on demand paging support") and fully reverts commit 5a77abf9a97a
("IB/core: Add support for extended query device caps").

[1] "Re: [PATCH v3 06/17] IB/core: Add support for extended query device caps"
    http://mid.gmane.org/1418733236.2779.26.camel@opteya.com

[2] "Re: [PATCH] IB/core: Temporarily disable ex_query_device uverb"
    http://mid.gmane.org/1423067503.3030.83.camel@opteya.com

[3] "RE: [PATCH v1 1/5] IB/uverbs: ex_query_device: answer must not depend on request's comp_mask"
    http://mid.gmane.org/2807E5FD2F6FDA4886F6618EAC48510E0CC12C30@CRSMSX101.amr.corp.intel.com

Cc: Eli Cohen 
Cc: Haggai Eran 
Cc: Ira Weiny 
Cc: Jason Gunthorpe 
Cc: Sagi Grimberg 
Cc: Shachar Raindel 
Signed-off-by: Yann Droneaud 
Signed-off-by: Roland Dreier

IB/core: Add flags for on demand paging support

2014-12-16T02:13:35+00:00

* Add a configuration option for enable on-demand paging support in
  the infiniband subsystem (CONFIG_INFINIBAND_ON_DEMAND_PAGING). In a
  later patch, this configuration option will select the MMU_NOTIFIER
  configuration option to enable mmu notifiers.
* Add a flag for on demand paging (ODP) support in the IB device capabilities.
* Add a flag to request ODP MR in the access flags to reg_mr.
* Fail registrations done with the ODP flag when the low-level driver
  doesn't support this.
* Change the conditions in which an MR will be writable to explicitly
  specify the access flags.  This is to avoid making an MR writable just
  because it is an ODP MR.
* Add a ODP capabilities to the extended query device verb.

Signed-off-by: Sagi Grimberg 
Signed-off-by: Shachar Raindel 
Signed-off-by: Haggai Eran 
Signed-off-by: Roland Dreier