Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This has been a smaller cycle than normal. One new driver was accepted,
which is unusual, and at least one more driver remains in review on the
list.
- Driver fixes for hns, hfi1, nes, rxe, i40iw, mlx5, cxgb4, vmw_pvrdma
- Many patches from MatthewW converting radix tree and IDR users to use
xarray
- Introduction of tracepoints to the MAD layer
- Build large SGLs at the start for DMA mapping and get the driver to
split them
- Generally clean SGL handling code throughout the subsystem
- Support for restricting RDMA devices to net namespaces for containers
- Progress to remove object allocation boilerplate code from drivers
- Change in how the mlx5 driver shows representor ports linked to VFs
- mlx5 uapi feature to access the on chip SW ICM memory
- Add a new driver for 'EFA'. This is HW that supports user space packet
processing through QPs in Amazon's cloud
-----BEGIN PGP SIGNATURE-----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=TS64
-----END PGP SIGNATURE-----
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 than normal. One new driver was
accepted, which is unusual, and at least one more driver remains in
review on the list.
Summary:
- Driver fixes for hns, hfi1, nes, rxe, i40iw, mlx5, cxgb4,
vmw_pvrdma
- Many patches from MatthewW converting radix tree and IDR users to
use xarray
- Introduction of tracepoints to the MAD layer
- Build large SGLs at the start for DMA mapping and get the driver to
split them
- Generally clean SGL handling code throughout the subsystem
- Support for restricting RDMA devices to net namespaces for
containers
- Progress to remove object allocation boilerplate code from drivers
- Change in how the mlx5 driver shows representor ports linked to VFs
- mlx5 uapi feature to access the on chip SW ICM memory
- Add a new driver for 'EFA'. This is HW that supports user space
packet processing through QPs in Amazon's cloud"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (186 commits)
RDMA/ipoib: Allow user space differentiate between valid dev_port
IB/core, ipoib: Do not overreact to SM LID change event
RDMA/device: Don't fire uevent before device is fully initialized
lib/scatterlist: Remove leftover from sg_page_iter comment
RDMA/efa: Add driver to Kconfig/Makefile
RDMA/efa: Add the efa module
RDMA/efa: Add EFA verbs implementation
RDMA/efa: Add common command handlers
RDMA/efa: Implement functions that submit and complete admin commands
RDMA/efa: Add the ABI definitions
RDMA/efa: Add the com service API definitions
RDMA/efa: Add the efa_com.h file
RDMA/efa: Add the efa.h header file
RDMA/efa: Add EFA device definitions
RDMA: Add EFA related definitions
RDMA/umem: Remove hugetlb flag
RDMA/bnxt_re: Use core helpers to get aligned DMA address
RDMA/i40iw: Use core helpers to get aligned DMA address within a supported page size
RDMA/verbs: Add a DMA iterator to return aligned contiguous memory blocks
RDMA/umem: Add API to find best driver supported page size in an MR
...
Integrate iw_cm_verbs data members into ib_device_ops and ib_device
structs, this is done to achieve the following:
1) Avoid memory related bugs durring error unwind
2) Make the code more cleaner
3) Reduce code duplication
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
To allow the gateway to be either an IPv4 or IPv6 address, remove
rt_uses_gateway from rtable and replace with rt_gw_family. If
rt_gw_family is set it implies rt_uses_gateway. Rename rt_gateway
to rt_gw4 to represent the IPv4 version.
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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>
The non-null check on udata is redundant as this check was performed just
a few statements earlier and the check is always true as udata must be
non-null at this point. Remove redundant the check on udata and the
redundant else part that can never be executed.
Detected by CoverityScan, CID#1477317 ("Logically dead code")
Fixes: 8994445054 ("IB/{hw,sw}: Remove 'uobject->context' dependency in object creation APIs")
Signed-off-by: Colin Ian King <colin.king@canonical.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>
The internal design of RDMA/core ensures that there dealloc ucontext will
be called only if alloc_ucontext succeeded, hence there is no need to
manage internal variable to mark validity of ucontext.
As part of this change, remove redundant memeset too.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Now when we have the udata passed to all the ib_xxx object creation 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>
Use the for_each_sg_dma_page iterator variant to walk the umem DMA-mapped
SGL and get the page DMA address. This avoids the extra loop to iterate
pages in the SGE when for_each_sg iterator is used.
Additionally, purge umem->page_shift usage in the driver as its only
relevant for ODP MRs. Use system page size and shift instead.
Signed-off-by: Shiraz, Saleem <shiraz.saleem@intel.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>
All callers to ib_alloc_device() provide a larger size than struct
ib_device and rely on the fact that struct ib_device is embedded in their
driver specific structure as the first member.
Provide a safer variant of ib_alloc_device() that checks and enforces this
approach to make sure the drivers are using it right.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Introduce and use rdma_device_to_ibdev() API for those drivers which are
registering one sysfs group and also use in ib_core.
In subsequent patch, device->provider_ibdev one-to-one mapping is no
longer holds true during accessing sysfs entries.
Therefore, introduce an API rdma_device_to_ibdev() that provides such
information.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Most provider routines are callback routines which ib core invokes.
_callback suffix doesn't convey information about when such callback is
invoked. Therefore, rename port_callback to init_port.
Additionally, store the init_port function pointer in ib_device_ops, so
that it can be accessed in subsequent patches when binding rdma device to
net namespace.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
ib_umem_get() can only be called in a method callback, which always has a
udata parameter. This allows ib_umem_get() to derive the ucontext pointer
directly from the udata without requiring the drivers to find it in some
way or another.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
The next patch will add dependency from ib_umem_get in to ib_uverbs so
move the required ib_umem_xxx functionality to it's correct module -
ib_uverbs - and avoid circular dependecy from the form of ib_core ->
ib_uverbs -> ib_core in depmod.
Since this now requires all drivers to be build modular if uverbs is
modular, hoist the test a couple drivers had into the main kconfig and
apply it to all drivers uniformly.
Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This has been a fairly typical cycle, with the usual sorts of driver
updates. Several series continue to come through which improve and
modernize various parts of the core code, and we finally are starting to
get the uAPI command interface cleaned up.
- Various driver fixes for bnxt_re, cxgb3/4, hfi1, hns, i40iw, mlx4, mlx5,
qib, rxe, usnic
- Rework the entire syscall flow for uverbs to be able to run over
ioctl(). Finally getting past the historic bad choice to use write()
for command execution
- More functional coverage with the mlx5 'devx' user API
- Start of the HFI1 series for 'TID RDMA'
- SRQ support in the hns driver
- Support for new IBTA defined 2x lane widths
- A big series to consolidate all the driver function pointers into
a big struct and have drivers provide a 'static const' version of the
struct instead of open coding initialization
- New 'advise_mr' uAPI to control device caching/loading of page tables
- Support for inline data in SRPT
- Modernize how umad uses the driver core and creates cdev's and sysfs
files
- First steps toward removing 'uobject' from the view of the drivers
-----BEGIN PGP SIGNATURE-----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=T0p1
-----END PGP SIGNATURE-----
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 fairly typical cycle, with the usual sorts of driver
updates. Several series continue to come through which improve and
modernize various parts of the core code, and we finally are starting
to get the uAPI command interface cleaned up.
- Various driver fixes for bnxt_re, cxgb3/4, hfi1, hns, i40iw, mlx4,
mlx5, qib, rxe, usnic
- Rework the entire syscall flow for uverbs to be able to run over
ioctl(). Finally getting past the historic bad choice to use
write() for command execution
- More functional coverage with the mlx5 'devx' user API
- Start of the HFI1 series for 'TID RDMA'
- SRQ support in the hns driver
- Support for new IBTA defined 2x lane widths
- A big series to consolidate all the driver function pointers into a
big struct and have drivers provide a 'static const' version of the
struct instead of open coding initialization
- New 'advise_mr' uAPI to control device caching/loading of page
tables
- Support for inline data in SRPT
- Modernize how umad uses the driver core and creates cdev's and
sysfs files
- First steps toward removing 'uobject' from the view of the drivers"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (193 commits)
RDMA/srpt: Use kmem_cache_free() instead of kfree()
RDMA/mlx5: Signedness bug in UVERBS_HANDLER()
IB/uverbs: Signedness bug in UVERBS_HANDLER()
IB/mlx5: Allocate the per-port Q counter shared when DEVX is supported
IB/umad: Start using dev_groups of class
IB/umad: Use class_groups and let core create class file
IB/umad: Refactor code to use cdev_device_add()
IB/umad: Avoid destroying device while it is accessed
IB/umad: Simplify and avoid dynamic allocation of class
IB/mlx5: Fix wrong error unwind
IB/mlx4: Remove set but not used variable 'pd'
RDMA/iwcm: Don't copy past the end of dev_name() string
IB/mlx5: Fix long EEH recover time with NVMe offloads
IB/mlx5: Simplify netdev unbinding
IB/core: Move query port to ioctl
RDMA/nldev: Expose port_cap_flags2
IB/core: uverbs copy to struct or zero helper
IB/rxe: Reuse code which sets port state
IB/rxe: Make counters thread safe
IB/mlx5: Use the correct commands for UMEM and UCTX allocation
...
Drivers should be using udata to determine if a method is invoked from
user space or kernel space. A pd does not necessarily say a different
objects is kernel or user.
Transforming the tests to use udata eliminates a large number of uobject
references from the drivers.
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>
Initialize ib_device_ops with the supported operations using
ib_set_device_ops().
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
I do not see how one can effectively use skb_insert() without holding
some kind of lock. Otherwise other cpus could have changed the list
right before we have a chance of acquiring list->lock.
Only existing user is in drivers/infiniband/hw/nes/nes_mgt.c and this
one probably meant to use __skb_insert() since it appears nesqp->pau_list
is protected by nesqp->pau_lock. This looks like nesqp->pau_lock
could be removed, since nesqp->pau_list.lock could be used instead.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Faisal Latif <faisal.latif@intel.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: linux-rdma <linux-rdma@vger.kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The following:
skb = skb->next;
...
if (skb == (struct sk_buff *)queue)
is transformed into:
skb = skb_peek_next(skb, queue);
...
if (!skb)
Signed-off-by: David S. Miller <davem@davemloft.net>
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
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEfB7FMLh+8QxL+6i3OG33FX4gmxoFAlvR7dUACgkQOG33FX4g
mxojiw//a9GU5kq4IZ3LNAEio/3Ql/NHRF0uie5tSzJgipRJA1Ln9zW0Cm1S/ms1
VCmaSJ3l3q3GC4i3tIlsZSIIkN5qtjv/FsT/i+TZwSJYx9BDpPbzWtG6Mp4PSDj0
v3xzklFCN5HMOmEcjkNmyZw3VjHOt2Iw2mKjqvGbI9imCPLOYnw+WQaZLmMWMH6p
GL0HDbAopN5Lv8ireWd8pOhPLVbSb12cWM1crx+yHOS3q8YNWjIXGiZr/QkOPtPr
cymSXB8yuITJ7gnjbs/GxZHg6rxU0knC/Ck8hE7FqqYYHgytTklOXDE2ef1J2lFe
1VmotD+nTsCir0mZWSdcRrszEk7tzaZT7n1oWggKvWySDB6qaH0II8vWumJchQnN
pElIQn/WDgpekIqplamNqXJnKnDXZJpEVA01OHHDN4MNSc+Ad08hQy4FyFzpB6/G
jv9TnDMfGC6ma9pr1ipOXyCgCa2pHYEUCaYxUqRA0O/4ATVl7/PplqT0rqtJ6hKg
o/hmaVCawIFOUKD87/bo7Em2HBs3xNwE/c5ggbsQElLYeydrgPrZfrPfjkshv5K3
eIKDb+HPyis0is1aiF7m/bz1hSIYZp0bQhuKCdzLRjZobwCm5WDPhtuuAWb7vYVw
GSLCJWyet+bLyZxynNOt67gKm9je9lt8YTr5nilz49KeDytspK0=
=pacJ
-----END PGP SIGNATURE-----
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
...
Use rdma_set_device_sysfs_group() to register device attributes and
simplify the driver.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
These return the same thing but dev_name is a more conventional use of the
kernel API.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
The current code has two copies of the device name, ibdev->dev and
dev_name(&ibdev->dev), and they are setup at different times, which is
very confusing.
Set them both up at the same time and make dev_name() the lead name, which
is the proper use of the driver core APIs. To make it very clear that the
name is not valid until registration pass it in to the
ib_register_device() call rather than messing with ibdev->name directly.
Also the reorganization now checks that dev_name is unique even if it does
not contain a %.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Adit Ranadive <aditr@vmware.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Acked-by: Devesh Sharma <devesh.sharma@broadcom.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Clang warns when more than one set of parentheses are used in single
conditional statements.
drivers/infiniband/hw/nes/nes_hw.c:1446:27: warning: equality comparison
with extraneous parentheses [-Wparentheses-equality]
} while ((temp_phy_data2 == temp_phy_data));
~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
drivers/infiniband/hw/nes/nes_hw.c:1446:27: note: remove extraneous
parentheses around the comparison to silence this warning
} while ((temp_phy_data2 == temp_phy_data));
~ ^ ~
drivers/infiniband/hw/nes/nes_hw.c:1446:27: note: use '=' to turn this
equality comparison into an assignment
} while ((temp_phy_data2 == temp_phy_data));
^~
=
Remove the unnecessary parentheses to silence this warning.
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The pci-core and net-core logic ensure that parameters provided
to nes_probe() and nes_netdev_open() are valid, hence the assert
print are not possible.
Cc: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The rdma core is taking care of return the right error code when the
rdma device callbacks aren't supported.
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Since neither ib_post_send() nor ib_post_recv() modify the data structure
their second argument points at, declare that argument const. This change
makes it necessary to declare the 'bad_wr' argument const too and also to
modify all ULPs that call ib_post_send(), ib_post_recv() or
ib_post_srq_recv(). This patch does not change any functionality but makes
it possible for the compiler to verify whether the
ib_post_(send|recv|srq_recv) really do not modify the posted work request.
To make this possible, only one cast had to be introduce that casts away
constness, namely in rpcrdma_post_recvs(). The only way I can think of to
avoid that cast is to introduce an additional loop in that function or to
change the data type of bad_wr from struct ib_recv_wr ** into int
(an index that refers to an element in the work request list). However,
both approaches would require even more extensive changes than this
patch.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
When posting a send work request, the work request that is posted is not
modified by any of the RDMA drivers. Make this explicit by constifying
most ib_send_wr pointers in RDMA transport drivers.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The nes infiniband driver uses current_kernel_time() to get a nanosecond
granunarity timestamp to initialize its tcp sequence counters. This is
one of only a few remaining users of that deprecated function, so we
should try to get rid of it.
Aside from using a deprecated API, there are several problems I see here:
- Using a CLOCK_REALTIME based time source makes it predictable in
case the time base is synchronized.
- Using a coarse timestamp means it only gets updated once per jiffie,
making it even more predictable in order to avoid having to access
the hardware clock source
- The upper 2 bits are always zero because the nanoseconds are at most
999999999.
For the Linux TCP implementation, we use secure_tcp_seq(), which appears
to be appropriate here as well, and solves all the above problems.
i40iw uses a variant of the same code, so I do that same thing there
for ipv4. Unlike nes, i40e also supports ipv6, which needs to call
secure_tcpv6_seq instead.
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Avoid that the compiler reports the following when building with W=1:
drivers/infiniband/hw/nes/nes_utils.c: In function 'nes_arp_table':
drivers/infiniband/hw/nes/nes_utils.c:689:9: warning: variable 'tmp_addr' set but not used [-Wunused-but-set-variable]
__be32 tmp_addr;
^~~~~~~~
drivers/infiniband/hw/nes/nes_hw.c: In function 'flush_wqes':
drivers/infiniband/hw/nes/nes_hw.c:3840:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
int ret;
^~~
drivers/infiniband/hw/nes/nes_verbs.c: In function 'nes_setup_virt_qp':
drivers/infiniband/hw/nes/nes_verbs.c:811:6: warning: variable 'pbl_entries' set but not used [-Wunused-but-set-variable]
u32 pbl_entries;
^~~~~~~~~~~
drivers/infiniband/hw/nes/nes_verbs.c: In function 'nes_dereg_mr':
drivers/infiniband/hw/nes/nes_verbs.c:2487:6: warning: variable 'minor_code' set but not used [-Wunused-but-set-variable]
u16 minor_code;
^~~~~~~~~~
drivers/infiniband/hw/nes/nes_cm.c: In function 'mini_cm_recv_pkt':
drivers/infiniband/hw/nes/nes_cm.c:2570:20: warning: variable 'tmp_saddr' set but not used [-Wunused-but-set-variable]
__be32 tmp_daddr, tmp_saddr;
^~~~~~~~~
drivers/infiniband/hw/nes/nes_cm.c:2570:9: warning: variable 'tmp_daddr' set but not used [-Wunused-but-set-variable]
__be32 tmp_daddr, tmp_saddr;
^~~~~~~~~
drivers/infiniband/hw/nes/nes_cm.c: In function 'cm_event_connected':
drivers/infiniband/hw/nes/nes_cm.c:3578:22: warning: variable 'raddr' set but not used [-Wunused-but-set-variable]
struct sockaddr_in *raddr;
^~~~~
drivers/infiniband/hw/nes/nes_cm.c: In function 'cm_event_reset':
drivers/infiniband/hw/nes/nes_cm.c:3753:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
int ret;
^~~
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Faisal Latif <faisal.latif@intel.com>
Cc: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Avoid that the following compiler warning is reported when building with
W=1:
drivers/infiniband/hw/nes/nes_hw.c:646:51: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This patch replaces the ib_device_attr.max_sge with max_send_sge and
max_recv_sge. It allows ulps to take advantage of devices that have very
different send and recv sge depths. For example cxgb4 has a max_recv_sge
of 4, yet a max_send_sge of 16. Splitting out these attributes allows
much more efficient use of the SQ for cxgb4 with ulps that use the RDMA_RW
API. Consider a large RDMA WRITE that has 16 scattergather entries.
With max_sge of 4, the ulp would send 4 WRITE WRs, but with max_sge of
16, it can be done with 1 WRITE WR.
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Selvin Xavier <selvin.xavier@broadcom.com>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, but the implementation in this
driver returns an 'int'.
Fix this by returning 'netdev_tx_t' in this driver too.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Extending uverbs_ioctl header with driver_id and another reserved
field. driver_id should be used in order to identify the driver.
Since every driver could have its own parsing tree, this is necessary
for strace support.
Downstream patches take off the EXPERIMENTAL flag from the ioctl() IB
support and thus we add some reserved fields for future usage.
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The accelerated flag only utilizes two values: 0 and 1.
Modify accelerated flag in struct nes_cm_node to bool.
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
There is a stale entry in nes_cm_tcp_context that has apparently
never been used in mainline linux.
I'm trying to kill off all users of timeval as part of the
y2038-safety work, so let's just remove this one.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
With all callbacks converted, and the timer callback prototype
switched over, the TIMER_FUNC_TYPE cast is no longer needed,
so remove it. Conversion was done with the following scripts:
perl -pi -e 's|\(TIMER_FUNC_TYPE\)||g' \
$(git grep TIMER_FUNC_TYPE | cut -d: -f1 | sort -u)
perl -pi -e 's|\(TIMER_DATA_TYPE\)||g' \
$(git grep TIMER_DATA_TYPE | cut -d: -f1 | sort -u)
The now unused macros are also dropped from include/linux/timer.h.
Signed-off-by: Kees Cook <keescook@chromium.org>
Conflicts:
drivers/infiniband/hw/cxgb4/cm.c
drivers/infiniband/hw/qib/qib_driver.c
drivers/infiniband/hw/qib/qib_mad.c
There were minor fixups needed in these files. Just minor context diffs
due to patches from independent sources touching the same basic area.
Signed-off-by: Doug Ledford <dledford@redhat.com>
The early for-next branch was based on v4.14-rc2, while the shared pull
request I got from Mellanox used a v4.14-rc4 base. I'm making the
branch that was the shared Mellanox pull request the new for-next branch
and merging the early for-next branch into it.
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch does not change any functionality.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Faisal Latif <faisal.latif@intel.com>
Acked-by: Faisal Latif <fasial.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Avoid that gcc 7 reports the following warning when building with W=1:
warning: this statement may fall through [-Wimplicit-fallthrough=]
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Faisal Latif <faisal.latif@intel.com>
Acked-by: Faisal Latif <fasial.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
