The old version of ib_umem_get() need these udata as a parameter but now
they are unnecessary.
Fixes: c320e527e1 ("IB: Allow calls to ib_umem_get from kernel ULPs")
Link: https://lore.kernel.org/r/1620807142-39157-2-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The doorbell update interfaces are very similar for different queues, such
as SQ, RQ, SRQ, CQ and EQ. So reorganize these code and also fix some
inappropriate naming.
Link: https://lore.kernel.org/r/1616840738-7866-3-git-send-email-liweihang@huawei.com
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
HIP08 supports both normal and record doorbell mode for RQ and CQ, SQ
record doorbell for userspace is also supported by the software for
flushing CQE process. As now the capability of HIP08 are exposed to the
user and are configurable, the support of normal doorbell should be added
back.
Note that, if switching to normal doorbell, the kernel will report "flush
cqe is unsupported" if modify qp to error status as the flush is based on
record doorbell.
Link: https://lore.kernel.org/r/1616840738-7866-2-git-send-email-liweihang@huawei.com
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The HIP09 supports XRC transport service, it greatly saves the number of
QPs required to connect all processes in a large cluster.
Link: https://lore.kernel.org/r/1614826558-35423-1-git-send-email-liweihang@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
HIP09 uses new address space to map SQ doorbell registers, the doorbell of
each QP is isolated based on the size of 64KB, which can improve the
performance in concurrency scenarios.
Link: https://lore.kernel.org/r/1614082833-23130-1-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Merge tag 'v5.11' into rdma.git for-next
Linux 5.11
Merged to resolve conflicts with RDMA rc commits
- drivers/infiniband/sw/rxe/rxe_net.c
The final logic is to call rxe_get_dev_from_net() again with the master
netdev if the packet was rx'd on a vlan. To keep the elimination of the
local variables requires a trivial edit to the code in -rc
Link: https://lore.kernel.org/r/20210210131542.215ea67c@canb.auug.org.au
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The RQ/SRQ of HIP08 needs one special sge to stop receive reliably. So the
driver needs to allocate at least one SGE when creating RQ/SRQ and ensure
that at least one SGE is filled with the special value during post_recv.
Besides, the kernel driver should only do this for kernel ULP. For
userspace ULP, the userspace driver will allocate the reserved SGE in
buffer, and the kernel driver just needs to pin the corresponding size of
memory based on the userspace driver's requirements.
Link: https://lore.kernel.org/r/1611997090-48820-2-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Split the hns_roce_mtr_create() into serval small functions, remove unused
member in 'struct hns_roce_buf_attr' and delete unnecessary MTR page count
check flow to make the MTR creation related codes clearer.
Link: https://lore.kernel.org/r/1611395282-991-2-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
GFP_KERNEL may cause ida_alloc_range() to sleep, but the spinlock covering
this function is not allowed to sleep, so the spinlock needs to be changed
to mutex.
As there is a certain chance of memory allocation failure, GFP_ATOMIC is
not suitable for QP allocation scenarios.
Fixes: 71586dd200 ("RDMA/hns: Create QP with selected QPN for bank load balance")
Link: https://lore.kernel.org/r/1611048513-28663-1-git-send-email-liweihang@huawei.com
Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Some %d in print format string should be %u, and some prints miss the
useful errno or are in nonstandard format. Just fix above issues.
Link: https://lore.kernel.org/r/1607650657-35992-11-git-send-email-liweihang@huawei.com
Signed-off-by: Yixing Liu <liuyixing1@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Types of some fields, variables and parameters of some functions should be
unsigned.
Link: https://lore.kernel.org/r/1607650657-35992-10-git-send-email-liweihang@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Just format the code without modifying anything, including fixing some
redundant and missing blanks and spaces and changing the variable
definition order.
Link: https://lore.kernel.org/r/1607650657-35992-8-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Whether to enable the these features should better depend on the enable
flags, not the value of related fields.
Fixes: 5c1f167af1 ("RDMA/hns: Init SRQ table for hip08")
Fixes: 3cb2c996c9 ("RDMA/hns: Add support for SCCC in size of 64 Bytes")
Link: https://lore.kernel.org/r/1607650657-35992-3-git-send-email-liweihang@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
For ib_copy_from_user(), the length of udata may not be the same as that
of cmd. For ib_copy_to_user(), the length of udata may not be the same as
that of resp. So limit the length to prevent out-of-bounds read and write
operations from ib_copy_from_user() and ib_copy_to_user().
Fixes: de77503a59 ("RDMA/hns: RDMA/hns: Assign rq head pointer when enable rq record db")
Fixes: 633fb4d9fd ("RDMA/hns: Use structs to describe the uABI instead of opencoding")
Fixes: ae85bf92ef ("RDMA/hns: Optimize qp param setup flow")
Fixes: 6fd610c573 ("RDMA/hns: Support 0 hop addressing for SRQ buffer")
Fixes: 9d9d4ff788 ("RDMA/hns: Update the kernel header file of hns")
Link: https://lore.kernel.org/r/1607650657-35992-2-git-send-email-liweihang@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
These flags will be returned to the userspace through ABI, so they should
be defined in hns-abi.h. Furthermore, there is no need to include
hns-abi.h in every source files, it just needs to be included in the
common header file.
Link: https://lore.kernel.org/r/1606872560-17823-1-git-send-email-liweihang@huawei.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The variable 'cnt' is used to represent the max number of sge an SQ WQE
can use at first, then it means how many extended sge an SQ has. In
addition, this function has no need to return a value. So refactor and
encapsulate the parts of getting number of extended sge a WQE can use to
make it easier to understand.
Link: https://lore.kernel.org/r/1606558959-48510-4-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Page alignment is required when setting the number of extended sge
according to the hardware's achivement. If the space of needed extended
sge is greater than one page, the roundup_pow_of_two() can ensure
that. But if the needed extended sge isn't 0 and can not be filled in a
whole page, the driver should align it specifically.
Fixes: 54d6638765 ("RDMA/hns: Optimize WQE buffer size calculating process")
Link: https://lore.kernel.org/r/1606558959-48510-3-git-send-email-liweihang@huawei.com
Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
In order to improve performance by balancing the load between different
banks of cache, the QPC cache is desigend to choose one of 8 banks
according to lower 3 bits of QPN. The hns driver needs to count the number
of QP on each bank and then assigns the QP being created to the bank with
the minimum load first.
Link: https://lore.kernel.org/r/1606220649-1465-1-git-send-email-liweihang@huawei.com
Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The doorbell needs to store PI information into QPC, so the RoCEE should
wait for the results of storing, that is, it needs two bus operations to
complete a doorbell. When ROCEE is in SDI mode, multiple doorbells may be
interlocked because the RoCEE can only handle bus operations serially. So a
flag to mark if HIP09 is working in SDI mode is added. When the SDI flag is
set, the ROCEE will ignore the PI information of the doorbell, continue to
fetch wqe and verify its validity by it's owner_bit.
Link: https://lore.kernel.org/r/1603195493-22741-1-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Each driver should check that the QP attrs create_flags is supported.
Unfortuantely when create_flags was added to the QP attrs the drivers were
not updated. uverbs_ex_cmd_mask was used to block it - even though kernel
drivers use these flags too.
Check that flags is zero in all drivers that don't use it, remove
IB_USER_VERBS_EX_CMD_CREATE_QP from uverbs_ex_cmd_mask. Fix the error code
to be EOPNOTSUPP.
Link: https://lore.kernel.org/r/8-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.com
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Some code was removed but the variables were still there, and some
parameters have been changed to be queried from firmware. So the
definitions of them are no longer needed.
Fixes: 2a3d923f87 ("RDMA/hns: Replace magic numbers with #defines")
Fixes: 82e620d9c3 ("RDMA/hns: Modify the data structure of hns_roce_av")
Fixes: 8254746978 ("IB/hns: Implement the add_gid/del_gid and optimize the GIDs management")
Fixes: 21b97f5387 ("RDMA/hns: Fixup qp release bug")
Link: https://lore.kernel.org/r/1601371934-40003-1-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
GSI QP can't be created from the user space, hence the udata check is
always false (udata == NULL). Remove that check and simplify the flow.
Link: https://lore.kernel.org/r/20200926102450.2966017-9-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
HIP08 supports RC inline up to size of 32 Bytes, and all data should be
put into SQWQE. For HIP09, this capability is extended to 1024 Bytes, if
length of data is longer than 32 Bytes, they will be filled into extended
sge space.
Link: https://lore.kernel.org/r/1599744069-9968-1-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
For HIP09, size of SCCC (Soft Congestion Control Context) is increased to
64 Bytes from 32 Bytes. The hardware will get the configuration of SCCC
from driver instead of using a fixed value.
Link: https://lore.kernel.org/r/1600245806-56321-5-git-send-email-liweihang@huawei.com
Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Merge tag 'v5.9-rc3' into rdma.git for-next
Required due to dependencies in following patches.
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
It should be considered an illegal operation if the ULP attempts to modify
a QP from another state to the current hardware state. Otherwise, the ULP
can modify some fields of QPC at any time. For example, for a QP in state
of RTS, modify it from RTR to RTS can change the PSN, which is always not
as expected.
Fixes: 9a4435375c ("IB/hns: Add driver files for hns RoCE driver")
Link: https://lore.kernel.org/r/1598353674-24270-1-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This patch caused some issues on SEND operation, and it should be reverted
to make the drivers work correctly. There will be a better solution that
has been tested carefully to solve the original problem.
This reverts commit 711195e57d.
Fixes: 711195e57d ("RDMA/hns: Reserve one sge in order to avoid local length error")
Link: https://lore.kernel.org/r/1597829984-20223-1-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
HIP08_A is an temporary version and all features of it are supported by
HIP08_B. So remove the relevant code.
Link: https://lore.kernel.org/r/1595932941-40613-4-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The redundant parameters "hr_dev" need to be removed from
free_kernel_wrid() and free_srq_wrid().
Link: https://lore.kernel.org/r/1590152579-32364-3-git-send-email-liweihang@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
When rq/srq sge length is smaller than sq sge length, it will produce a
local length error and may cause the bus to hang. Therefore, for rq wqe
and srq wqe, one reserved sge pointing to a reserved mr is used to avoid
this error.
Link: https://lore.kernel.org/r/1588931159-56875-10-git-send-email-liweihang@huawei.com
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
It's easier to understand and maintain enable flags of qp using a single
field in type of unsigned long than defining a field for every flags in
the structure hns_roce_qp, and we can add new flags for features more
conveniently in the future.
Link: https://lore.kernel.org/r/1588674607-25337-4-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Optimize the QP's WQE buffer parameters calculating process to make the
codes more readable mainly by merging calculation of extended sge space of
kernel and userspace. In addition, add some inline functions to simply
codes about multi-hop addressing.
Link: https://lore.kernel.org/r/1588071823-40200-4-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Add the zero hop addressing support by using new mtr interface for WQE
buffer and simple mtr invoking process, so WQE buffer can support hopnum
between 0 to 3.
Link: https://lore.kernel.org/r/1586779091-51410-5-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
When the value of nbufs is 1, the buffer is in direct mode, which may cause
confusion. So optimizes current codes to make it easier to maintain and
understand.
Link: https://lore.kernel.org/r/1586779091-51410-3-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Depth of qp shouldn't be allowed to be set to zero, after ensuring that,
subsequent process can be simplified. And when qp is changed from reset to
reset, the capability of minimum qp depth was used to identify hardware of
hip06, it should be changed into a more readable form.
Link: https://lore.kernel.org/r/1584006624-11846-1-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Currently, before the qp is created, a page size needs to be calculated
for the base address table to store all base addresses in the mtr. As a
result, the parameter configuration of the mtr is complex. So integrate
the process of calculating the base table page size into the hem related
interface to simplify the process of using mtr.
Link: https://lore.kernel.org/r/1583839084-31579-5-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
There are serval global functions related to wqe buffer in the hns driver
and are called in different files. These symbols cannot directly represent
the namespace they belong to. So add prefix 'hns_roce_' to 3 wqe buffer
related global functions: get_recv_wqe(), get_send_wqe(), and
get_send_extend_sge().
Link: https://lore.kernel.org/r/1583839084-31579-2-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The proper return code is "-EOPNOTSUPP" when the requested QP type is
not supported by the provider.
Link: https://lore.kernel.org/r/20200130082049.463-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Encapsulate the kernel qp doorbell allocation related code into 2
functions: alloc_qp_db() and free_qp_db().
Link: https://lore.kernel.org/r/1582526258-13825-8-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Encapsulate the kernel qp wrid allocation related code into 2 functions:
alloc_kernel_wrid() and free_kernel_wrid().
Link: https://lore.kernel.org/r/1582526258-13825-7-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Encapsulate qp buffer allocation related code into 3 functions:
alloc_qp_buf(), map_wqe_buf() and free_qp_buf().
Link: https://lore.kernel.org/r/1582526258-13825-5-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Encapsulate the code associated with the qp number assignment into
alloc_qpn() and free_qpn().
Link: https://lore.kernel.org/r/1582526258-13825-4-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Rename the qp context related functions and adjusts the code location to
distinguish between the qp context and the entire qp.
Link: https://lore.kernel.org/r/1582526258-13825-3-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
