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2022-11-18RDMA/hns: Fix incorrect sge nums calculationLuoyouming1-17/+90
The user usually configures the number of sge through the max_send_sge parameter when creating qp, and configures the maximum size of inline data that can be sent through max_inline_data. Inline uses sge to fill data to send. Expect the following: 1) When the sge space cannot hold inline data, the sge space needs to be expanded to accommodate all inline data 2) When the sge space is enough to accommodate inline data, the upper limit of inline data can be increased so that users can send larger inline data Currently case one is not implemented. When the inline data is larger than the sge space, an error of insufficient sge space occurs. This part of the code needs to be reimplemented according to the expected rules. The calculation method of sge num is modified to take the maximum value of max_send_sge and the sge for max_inline_data to solve this problem. Fixes: 05201e01be93 ("RDMA/hns: Refactor process of setting extended sge") Fixes: 30b707886aeb ("RDMA/hns: Support inline data in extented sge space for RC") Link: https://lore.kernel.org/r/20221108133847.2304539-3-xuhaoyue1@hisilicon.com Signed-off-by: Luoyouming <luoyouming@huawei.com> Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-10-06Merge tag 'v6.0' into rdma.git for-nextJason Gunthorpe1-5/+2
Trvial merge conflicts against rdma.git for-rc resolved matching linux-next: drivers/infiniband/hw/hns/hns_roce_hw_v2.c drivers/infiniband/hw/hns/hns_roce_main.c https://lore.kernel.org/r/20220929124005.105149-1-broonie@kernel.org Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-09-27RDMA/hns: Unified Log Printing StyleGuofeng Yue1-8/+8
The first letter of the log information is changed to lowercase to keep the same style. Link: https://lore.kernel.org/r/20220922123315.3732205-13-xuhaoyue1@hisilicon.com Signed-off-by: Guofeng Yue <yueguofeng@hisilicon.com> Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-08-30RDMA/hns: Remove redundant member doorbell_qpn of struct hns_roce_qpWenpeng Liang1-3/+0
The value of doorbell_qpn is always equal to qpn on current hardware versions. So remove it. Link: https://lore.kernel.org/r/20220829105021.1427804-5-liangwenpeng@huawei.com Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2022-08-30RDMA/hns: Fix wrong fixed value of qp->rq.wqe_shiftWenpeng Liang1-5/+2
The value of qp->rq.wqe_shift of HIP08 is always determined by the number of sge. So delete the wrong branch. Fixes: cfc85f3e4b7f ("RDMA/hns: Add profile support for hip08 driver") Fixes: 926a01dc000d ("RDMA/hns: Add QP operations support for hip08 SoC") Link: https://lore.kernel.org/r/20220829105021.1427804-3-liangwenpeng@huawei.com Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2022-04-11RDMA/hns: Remove unused function to_hns_roce_state()Yixing Liu1-20/+0
This function is only used in HIP06, which has been removed. So remove it. Link: https://lore.kernel.org/r/20220409083254.9696-3-liangwenpeng@huawei.com Signed-off-by: Yixing Liu <liuyixing1@huawei.com> Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-01-05RDMA/hns: Remove support for HIP06Chengchang Tang1-30/+7
HIP06 is no longer supported. In order to reduce unnecessary maintenance, the code of HIP06 is removed. Link: https://lore.kernel.org/r/20211220130558.61585-1-liangwenpeng@huawei.com Signed-off-by: Chengchang Tang <tangchengchang@huawei.com> Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-12-14RDMA/hns: Support direct wqe of userspaceYixing Liu1-1/+53
The current write wqe mechanism is to write to DDR first, and then notify the hardware through doorbell to read the data. Direct wqe is a mechanism to fill wqe directly into the hardware. In the case of light load, the wqe will be filled into pcie bar space of the hardware, this will reduce one memory access operation and therefore reduce the latency. SIMD instructions allows cpu to write the 512 bits at one time to device memory, thus it can be used for posting direct wqe. Add direct wqe enable switch and address mapping. Link: https://lore.kernel.org/r/20211207124901.42123-2-liangwenpeng@huawei.com Signed-off-by: Yixing Liu <liuyixing1@huawei.com> Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-11-19RDMA/hns: Correct the type of variables participating in the shift operationXinhao Liu1-1/+1
The type of the variable participating in the shift operation should be an unsigned type instead of a signed type. Link: https://lore.kernel.org/r/20211119140208.40416-5-liangwenpeng@huawei.com Signed-off-by: Xinhao Liu <liuxinhao5@hisilicon.com> Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-26RDMA/hns: Delete unnecessary blank lines.Xinhao Liu1-1/+0
Just delete unnecessary blank lines. Link: https://lore.kernel.org/r/1629985056-57004-8-git-send-email-liangwenpeng@huawei.com Signed-off-by: Xinhao Liu <liuxinhao5@hisilicon.com> Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-26RDMA/hns: Encapsulate the qp db as a functionYixing Liu1-53/+82
Encapsulate qp db into two functions: user and kernel. Link: https://lore.kernel.org/r/1629985056-57004-7-git-send-email-liangwenpeng@huawei.com Signed-off-by: Yixing Liu <liuyixing1@huawei.com> Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-26RDMA/hns: Remove RST2RST error prints for hw v1Weihang Li1-10/+1
There is no need to prints error for hw_v1. Link: https://lore.kernel.org/r/1629985056-57004-5-git-send-email-liangwenpeng@huawei.com Signed-off-by: Weihang Li <liweihang@huawei.com> Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-26RDMA/hns: Fix QP's resp incomplete assignmentWenpeng Liang1-2/+1
The resp passed to the user space represents the enable flag of qp, incomplete assignment will cause some features of the user space to be disabled. Fixes: 90ae0b57e4a5 ("RDMA/hns: Combine enable flags of qp") Fixes: aba457ca890c ("RDMA/hns: Support owner mode doorbell") Link: https://lore.kernel.org/r/1629985056-57004-3-git-send-email-liangwenpeng@huawei.com Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-25RDMA/hns: Bugfix for incorrect association between dip_idx and dgidJunxian Huang1-1/+9
dip_idx and dgid should be a one-to-one mapping relationship, but when qp_num loops back to the start number, it may happen that two different dgid are assiociated to the same dip_idx incorrectly. One solution is to store the qp_num that is not assigned to dip_idx in an array. When a dip_idx needs to be allocated to a new dgid, an spare qp_num is extracted and assigned to dip_idx. Fixes: f91696f2f053 ("RDMA/hns: Support congestion control type selection according to the FW") Link: https://lore.kernel.org/r/1629884592-23424-4-git-send-email-liangwenpeng@huawei.com Signed-off-by: Junxian Huang <huangjunxian4@hisilicon.com> Signed-off-by: Yangyang Li <liyangyang20@huawei.com> Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-03RDMA: Globally allocate and release QP memoryLeon Romanovsky1-20/+8
Convert QP object to follow IB/core general allocation scheme. That change allows us to make sure that restrack properly kref the memory. Link: https://lore.kernel.org/r/48e767124758aeecc433360ddd85eaa6325b34d9.1627040189.git.leonro@nvidia.com Reviewed-by: Gal Pressman <galpress@amazon.com> #efa Tested-by: Gal Pressman <galpress@amazon.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com> #rdma and core Tested-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Tested-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-03RDMA/hns: Don't overwrite supplied QP attributesLeon Romanovsky1-7/+1
QP attributes that were supplied by IB/core already have all parameters set when they are passed to the driver. The drivers are not supposed to change anything in struct ib_qp_init_attr. Fixes: 66d86e529dd5 ("RDMA/hns: Add UD support for HIP09") Link: https://lore.kernel.org/r/5987138875e8ade9aa339d4db6e1bd9694ed4591.1627040189.git.leonro@nvidia.com Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-06-22RDMA/hns: Encapsulate flushing CQE as a functionWenpeng Liang1-2/+17
The process of flushing CQE can be encapsultated into a function, which can reduce duplicate code. Link: https://lore.kernel.org/r/1624011020-16992-9-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>
2021-06-22RDMA/hns: Modify function return value typeYangyang Li1-3/+1
hns_roce_init_qp_table() will only return 0, because this function does not need to return a value, so it is modified to void type. Link: https://lore.kernel.org/r/1624011020-16992-8-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>
2021-06-22RDMA/hns: Fix some print issuesYixing Liu1-3/+1
Remove redundant print and fix a character type mismatch. Fixes: 0e0ab04b5bbe ("RDMA/hns: Refactor the MTR creation flow") Link: https://lore.kernel.org/r/1624011020-16992-4-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>
2021-06-16RDMA/hns: Support getting max QP number from firmwareXi Wang1-1/+1
All functions of HIP09's ROCEE share on-chip resources for all QPs, the driver needs configure the resource index and number for each function during the init stage. Link: https://lore.kernel.org/r/1622541427-42193-1-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>
2021-06-08RDMA/hns: Use refcount_t instead of atomic_t for QP reference countingWeihang Li1-6/+6
The refcount_t API will WARN on underflow and overflow of a reference counter, and avoid use-after-free risks. Link: https://lore.kernel.org/r/1622194663-2383-11-git-send-email-liweihang@huawei.com Signed-off-by: Weihang Li <liweihang@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-05-28RDMA/hns: Optimize the base address table config for MTRXi Wang1-1/+1
The base address table is allocated by dma allocator, and the size is always aligned to PAGE_SIZE. If a fixed size is used to allocate the table, the number of base address entries stored in the table will be smaller than that can actually stored. Link: https://lore.kernel.org/r/1621589395-2435-2-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>
2021-05-20RDMA/hns: Remove unused parameter udataLang Cheng1-2/+2
The old version of ib_umem_get() need these udata as a parameter but now they are unnecessary. Fixes: c320e527e154 ("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>
2021-04-08RDMA/hns: Remove unsupported QP typesWenpeng Liang1-2/+0
The hns ROCEE does not support UC QP currently. Link: https://lore.kernel.org/r/1617354454-47840-7-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>
2021-04-08RDMA/hns: Avoid enabling RQ inline on UDWeihang Li1-1/+3
RQ inline is not supported on UD/GSI QP, it should be disabled in QPC. Link: https://lore.kernel.org/r/1617354454-47840-2-git-send-email-liweihang@huawei.com Signed-off-by: Weihang Li <liweihang@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-04-01RDMA/hns: Reorganize doorbell update interfaces for all queuesYixian Liu1-5/+5
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>
2021-04-01RDMA/hns: Support configuring doorbell mode of RQ and CQYixian Liu1-3/+3
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>
2021-03-11RDMA/hns: Add support for XRC on HIP09Wenpeng Liang1-20/+43
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>
2021-03-10RDMA/hns: Use new SQ doorbell register for HIP09Lang Cheng1-22/+27
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>
2021-02-18Merge tag 'v5.11' into rdma.git for-nextJason Gunthorpe1-5/+6
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>
2021-02-08RDMA/hns: Allocate one more recv SGE for HIP08Lang Cheng1-6/+31
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>
2021-01-28RDMA/hns: Refactor the MTR creation flowXi Wang1-1/+0
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>
2021-01-19RDMA/hns: Use mutex instead of spinlock for ida allocationYangyang Li1-5/+6
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: 71586dd20010 ("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>
2020-12-11RDMA/hns: Fix inaccurate printsYixing Liu1-26/+35
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>
2020-12-11RDMA/hns: Fix incorrect symbol typesWenpeng Liang1-4/+4
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>
2020-12-11RDMA/hns: Fix coding style issuesLang Cheng1-1/+1
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>
2020-12-11RDMA/hns: Normalization the judgment of some featuresWenpeng Liang1-1/+1
Whether to enable the these features should better depend on the enable flags, not the value of related fields. Fixes: 5c1f167af112 ("RDMA/hns: Init SRQ table for hip08") Fixes: 3cb2c996c9dc ("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>
2020-12-11RDMA/hns: Limit the length of data copied between kernel and userspaceWenpeng Liang1-3/+6
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: de77503a5940 ("RDMA/hns: RDMA/hns: Assign rq head pointer when enable rq record db") Fixes: 633fb4d9fdaa ("RDMA/hns: Use structs to describe the uABI instead of opencoding") Fixes: ae85bf92effc ("RDMA/hns: Optimize qp param setup flow") Fixes: 6fd610c5733d ("RDMA/hns: Support 0 hop addressing for SRQ buffer") Fixes: 9d9d4ff78884 ("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>
2020-12-07RDMA/hns: Move capability flags of QP and CQ to hns-abi.hWeihang Li1-1/+0
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>
2020-12-01RDMA/hns: Refactor process of setting extended sgeWeihang Li1-32/+28
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>
2020-12-01RDMA/hns: Bugfix for calculation of extended sgeYangyang Li1-1/+6
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: 54d6638765b0 ("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>
2020-11-27RDMA/hns: Create QP with selected QPN for bank load balanceYangyang Li1-17/+83
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>
2020-11-26RDMA/hns: Add UD support for HIP09Weihang Li1-10/+29
HIP09 supports service type of Unreliable Datagram, add necessary process to enable this feature. Link: https://lore.kernel.org/r/1605526408-6936-7-git-send-email-liweihang@huawei.com Signed-off-by: Weihang Li <liweihang@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-10-28RDMA/hns: Support owner mode doorbellLang Cheng1-0/+3
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>
2020-10-26RDMA: Check create_flags during create_qpJason Gunthorpe1-11/+3
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>
2020-09-29RDMA/hns: Remove unused variables and definitionsLang Cheng1-2/+0
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: 2a3d923f8730 ("RDMA/hns: Replace magic numbers with #defines") Fixes: 82e620d9c3a0 ("RDMA/hns: Modify the data structure of hns_roce_av") Fixes: 82547469782a ("IB/hns: Implement the add_gid/del_gid and optimize the GIDs management") Fixes: 21b97f538765 ("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>
2020-09-29RDMA/drivers: Remove udata check from special QPLeon Romanovsky1-39/+18
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>
2020-09-24RDMA/hns: Support inline data in extented sge space for RCWeihang Li1-6/+7
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>
2020-09-24RDMA/hns: Add support for SCCC in size of 64 BytesYangyang Li1-1/+1
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>
2020-08-31Merge tag 'v5.9-rc3' into rdma.git for-nextJason Gunthorpe1-3/+2
Required due to dependencies in following patches. Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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