This cycle mainly saw lots of bug fixes and clean up code across the core
code and several drivers, few new functional changes were made.
- Many cleanup and bug fixes for hns
- Various small bug fixes and cleanups in hfi1, mlx5, usnic, qed,
bnxt_re, efa
- Share the query_port code between all the iWarp drivers
- General rework and cleanup of the ODP MR umem code to fit better with
the mmu notifier get/put scheme
- Support rdma netlink in non init_net name spaces
- mlx5 support for XRC devx and DC ODP
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull RDMA subsystem updates from Jason Gunthorpe:
"This cycle mainly saw lots of bug fixes and clean up code across the
core code and several drivers, few new functional changes were made.
- Many cleanup and bug fixes for hns
- Various small bug fixes and cleanups in hfi1, mlx5, usnic, qed,
bnxt_re, efa
- Share the query_port code between all the iWarp drivers
- General rework and cleanup of the ODP MR umem code to fit better
with the mmu notifier get/put scheme
- Support rdma netlink in non init_net name spaces
- mlx5 support for XRC devx and DC ODP"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (99 commits)
RDMA: Fix double-free in srq creation error flow
RDMA/efa: Fix incorrect error print
IB/mlx5: Free mpi in mp_slave mode
IB/mlx5: Use the original address for the page during free_pages
RDMA/bnxt_re: Fix spelling mistake "missin_resp" -> "missing_resp"
RDMA/hns: Package operations of rq inline buffer into separate functions
RDMA/hns: Optimize cmd init and mode selection for hip08
IB/hfi1: Define variables as unsigned long to fix KASAN warning
IB/{rdmavt, hfi1, qib}: Add a counter for credit waits
IB/hfi1: Add traces for TID RDMA READ
RDMA/siw: Relax from kmap_atomic() use in TX path
IB/iser: Support up to 16MB data transfer in a single command
RDMA/siw: Fix page address mapping in TX path
RDMA: Fix goto target to release the allocated memory
RDMA/usnic: Avoid overly large buffers on stack
RDMA/odp: Add missing cast for 32 bit
RDMA/hns: Use devm_platform_ioremap_resource() to simplify code
Documentation/infiniband: update name of some functions
RDMA/cma: Fix false error message
RDMA/hns: Fix wrong assignment of qp_access_flags
...
The cited commit introduced a double-free of the srq buffer in the error
flow of procedure __uverbs_create_xsrq().
The problem is that ib_destroy_srq_user() called in the error flow also
frees the srq buffer.
Thus, if uverbs_response() fails in __uverbs_create_srq(), the srq buffer
will be freed twice.
Cc: <stable@vger.kernel.org>
Fixes: 68e326dea1 ("RDMA: Handle SRQ allocations by IB/core")
Link: https://lore.kernel.org/r/20190916071154.20383-5-leon@kernel.org
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This is a significant simplification, no extra list is kept per FD, and
the interval tree is now shared between all the ucontexts, reducing
overhead if there are multiple ucontexts active.
Link: https://lore.kernel.org/r/20190806231548.25242-7-jgg@ziepe.ca
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The callback function 'invalidate_range' is implemented in a driver so the
place for it is in the ib_device_ops structure and not in ib_ucontext.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Guy Levi <guyle@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Link: https://lore.kernel.org/r/20190819111710.18440-11-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The variable ret is being initialized with a value that is never read and
it is being updated later with a new value. The initialization is
redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Merge tag 'v5.2-rc6' into rdma.git for-next
For dependencies in next patches.
Resolve conflicts:
- Use uverbs_get_cleared_udata() with new cq allocation flow
- Continue to delete nes despite SPDX conflict
- Resolve list appends in mlx5_command_str()
- Use u16 for vport_rule stuff
- Resolve list appends in struct ib_client
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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>
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>
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>
When destroy_* is called as a result of uverbs create cleanup flow a
cleared udata should be passed instead of NULL to indicate that it is
called under user flow.
Fixes: c4367a2635 ("IB: Pass uverbs_attr_bundle down ib_x destroy path")
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The core code should not pass a udata to the driver destroy function that
contains the input from the create command. Otherwise the driver will
attempt to interpret the create udata as destroy udata, and at least in
the case of EFA, will leak resources.
Zero this stuff out before invoking destroy.
Reported-by: Leon Romanovsky <leonro@mellanox.com>
Fixes: c4367a2635 ("IB: Pass uverbs_attr_bundle down ib_x destroy path")
Reviewed-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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>
ib_uverbs_get_context does not have a uobject so it does not call the
rdma_lookup_get_uobject which is used to set up the uverbs_attr_bundle
ucontext. For ib_uverbs_get_context we need to set up this manually before
we send the uverbs_attr_bundle down to the driver layer.
This completes the change that was done in commit 70f06b26f0 ("IB:
ucontext should be set properly for all cmd & ioctl paths")
Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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>
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>
Now that we have the udata passed to all the ib_xxx object destroy APIs
and the additional macro 'rdma_udata_to_drv_context' to get the
ib_ucontext from ib_udata stored in uverbs_attr_bundle, we can finally
start to remove the dependency of the drivers in the
ib_xxx->uobject->context.
Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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>
Pass uverbs_attr_bundle down the uobject destroy path. The next patch will
use this to eliminate the dependecy of the drivers in ib_x->uobject
pointers.
Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
the Attempt to use the below commit to initialize the ucontext for the
uobject destroy path has shown that the below commit is incomplete.
Parts were reverted and the ucontext set up in the uverbs_attr_bundle was
moved to rdma_lookup_get_uobject which is called from the uobj_get_XXX
macros and rdma_alloc_begin_uobject which is called when uobject is
created.
Fixes: 3d9dfd0603 ("IB/uverbs: Add ib_ucontext to uverbs_attr_bundle sent from ioctl and cmd flows")
Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This patch avoids that sparse complains about a mismatch between the
returned value and the function return type.
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Fixes: c3bea3d2dc ("RDMA/uverbs: Use the iterator for ib_uverbs_unmarshall_recv()")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
There is no need to call kfree(pd) because ib_dealloc_pd() internally
frees PD.
Fixes: 21a428a019 ("RDMA: Handle PD allocations by IB/core")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Following the PD conversion patch, do the same for ucontext allocations.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Before calling the provider's alloc_mw function, verify that the
given memory type is either IB_MW_TYPE_1 or IB_MW_TYPE_2.
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
old_pd is used only if IB_MR_REREG_PD flags is set.
For readability move it's initialization to where it is used.
While there rewrite the whole 'if-else' block so on error jump directly
to label and no need for 'else'
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The new output_written block was wrongly placed before the ret=0, causing
the error code to be lost. uverbs_output_written is not expected to fail,
and even if it does fail it has no significant impact on the userspace
flow.
Reported-by: Bart Van Assche <bvanassche@acm.org>
Fixes: d6f4a21f30 ("RDMA/uverbs: Mark ioctl responses with UVERBS_ATTR_F_VALID_OUTPUT")
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Add ib_ucontext to the uverbs_attr_bundle sent down the iocl and cmd flows
as soon as the flow has ib_uobject.
In addition, remove rdma_get_ucontext helper function that is only used by
ib_umem_get.
Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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>
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Merge tag 'v5.0-rc5' into rdma.git for-next
Linux 5.0-rc5
Needed to merge the include/uapi changes so we have an up to date
single-tree for these files. Patches already posted are also expected to
need this for dependencies.
Expose XRC ODP capabilities as part of the extended device capabilities.
Signed-off-by: Moni Shoua <monis@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>
When the ioctl interface for the write commands was introduced it did
not mark the core response with UVERBS_ATTR_F_VALID_OUTPUT. This causes
rdma-core in userspace to not mark the buffers as written for valgrind.
Along the same lines it turns out we have always missed marking the driver
data. Fixing both of these makes valgrind work properly with rdma-core and
ioctl.
Fixes: 4785860e04 ("RDMA/uverbs: Implement an ioctl that can call write and write_ex handlers")
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Convert various places to more readable code, which embeds
CONFIG_INFINIBAND_ON_DEMAND_PAGING into the code flow.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Device capability bits are exposing what specific device supports from HW
perspective. Those bits are not dependent on kernel configurations and
RDMA/core should ensure that proper interfaces to users will be disabled
if CONFIG_INFINIBAND_ON_DEMAND_PAGING is not set.
Fixes: f4056bfd8c ("IB/core: Add on demand paging caps to ib_uverbs_ex_query_device")
Fixes: 8cdd312cfe ("IB/mlx5: Implement the ODP capability query verb")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
If get QP object fails 'ret' must be assigned with a proper error code.
Fixes: 9a0738575f ("RDMA/uverbs: Use uverbs_response() for remaining response copying")
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Add a method for query port under the uverbs global methods. Current
ib_port_attr struct is passed as a single attribute and port_cap_flags2 is
added as a new attribute to the function.
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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>
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>
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>
Clear extra bytes in response in batch manner instead
of doing it per-byte.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
All of the old arguments can be derived from the uverbs_attr_bundle
structure, so get rid of the redundant arguments. Most of the prior work
has been removing users of the arguments to allow this to be a simple
patch.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
If the user did not provide a long enough command buffer then the missing
bytes are forced to zero. There is no reason to check the length if a zero
value is OK.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This has a very complicated memory layout, with two flex arrays. Use
the iterator API to make reading it clearer.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Several methods have a command with a trailing flex array, and they
all open code some extraction scheme. Centralize this into a simple
iterator API.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
We truncate the response structure if there is not enough room in the
user buffer so there is no reason to have all the mess with finely managing
response_length. Just fully fill the attrs and truncate on copy.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
A response struct was defined, and userspace is providing it (but not
checking it). Fill it in and write it out.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The write_ex handlers have this horrible boilerplate in every function to
do the zero extend/zero check and min size checks. This is now handled in
the core code via the meta-data, and the zero checks are handled by
uverbs_request(). Replace all the occurrences.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This function properly zero-extends, and zero-checks if the user
buffer is not the same size as the kernel command struct.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This function properly truncates and zero-fills the response which is the
standard used by the ioctl uAPI when working with user data.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Linus Torvalds
Jack Morgenstein
Jason Gunthorpe
Moni Shoua
Colin Ian King
Max Gurtovoy
Leon Romanovsky
Gal Pressman
Artemy Kovalyov
Shamir Rabinovitch
Bart Van Assche
Noa Osherovich
Yuval Shaia
Michael Guralnik
Kamal Heib