A random value will be returned if the condition below is not met, so it
needs to be initialized.
Fixes: 9ea9a53ea9 ("RDMA/hns: Add mapped page count checking for MTR")
Link: https://lore.kernel.org/r/1624011020-16992-3-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>
When a non-inline WR reuses a WQE that was used for inline last time, the
remaining inline flag should be cleared.
Fixes: 62490fd5a8 ("RDMA/hns: Avoid unnecessary memset on WQEs in post_send")
Link: https://lore.kernel.org/r/1624011020-16992-2-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>
Compilation with W=1 produces warnings similar to the below.
drivers/infiniband/ulp/ipoib/ipoib_main.c:320: warning: This comment
starts with '/**', but isn't a kernel-doc comment. Refer
Documentation/doc-guide/kernel-doc.rst
All such occurrences were found with the following one line
git grep -A 1 "\/\*\*" drivers/infiniband/
Link: https://lore.kernel.org/r/e57d5f4ddd08b7a19934635b44d6d632841b9ba7.1623823612.git.leonro@nvidia.com
Reviewed-by: Jack Wang <jinpu.wang@ionos.com> #rtrs
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Switch xrcd index allocation and release from hns own bitmap interface
to IDA interface.
Link: https://lore.kernel.org/r/1623325814-55737-7-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>
Switch pd index allocation and release from hns own bitmap interface
to IDA interface.
Link: https://lore.kernel.org/r/1623325814-55737-6-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>
Switch mtpt index allocation and release from hns own bitmap interface
to IDA interface.
Link: https://lore.kernel.org/r/1623325814-55737-5-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>
Round-robin (RR) is no longer used in the allocation of the bitmap table,
and all the function input parameters that use this mechanism are
BITMAP_NO_RR. The code that defines and uses the RR needs to be deleted.
Link: https://lore.kernel.org/r/1623325814-55737-4-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>
hns_roce_bitmap_free_range() is only called inside hns_roce_bitmap_free(),
and the input parameter "cnt" is set to a constant 1. In addition, the
driver does not use alloc_range scenarios, so free_range does not need to
exist.
Link: https://lore.kernel.org/r/1623325814-55737-3-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>
Fill all QPC fileds with hr_reg_*() instead of roce_set_*(). SQPN is used
for HIP08 ES only, it should be removed.
Link: https://lore.kernel.org/r/1624262443-24528-6-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>
In order to avoid to do bitwise operations on a boolean value, add a new
register interface to avoid sparse comlaint about "dubious: x & !y" when
calling hr_reg_write(ctx, field, !!val).
Fixes: dc50477440 ("RDMA/hns: Use new interface to set MPT related fields")
Fixes: 495c24808c ("RDMA/hns: Add XRC subtype in QPC and XRC type in SRQC")
Link: https://lore.kernel.org/r/1624262443-24528-4-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@nvidia.com>
GCC may reports an running time assert error when a value calculated from
ib_mtu_enum_to_int() is using as 'val' in FIELD_PREDP:
include/linux/compiler_types.h:328:38: error: call to
'__compiletime_assert_1524' declared with attribute error: FIELD_PREP:
value too large for the field
So a check is added about whether integer mtu from ib_mtu_enum_to_int() is
negative to avoid this warning.
Link: https://lore.kernel.org/r/1624262443-24528-3-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>
There is no need to use "!!" before "eq->eqe_size ==
HNS_ROCE_V3_EQE_SIZE", or sparse will complain about "dubious: x & !y".
Fixes: 782832f254 ("RDMA/hns: Simplify the function config_eqc()")
Link: https://lore.kernel.org/r/1624262443-24528-2-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Both of HIP08 and HIP09 require the extended doorbell information to be
cleared before being used.
Fixes: 6b63597d35 ("RDMA/hns: Add TSQ link table support")
Link: https://lore.kernel.org/r/1623392089-35639-1-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@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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>
The capbability configurations of PFs and VFs are coupled. Decoupling them
by abstracting some functions and reorganizing the configuration process.
Link: https://lore.kernel.org/r/1621860428-58009-1-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@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>
The HEM page size for QPC timer and CQC timer is always 4K and there's no
need to calculate a different size by the hns driver, otherwise the ROCEE
may access an invalid address.
Fixes: 719d13415f ("RDMA/hns: Remove duplicated hem page size config code")
Link: https://lore.kernel.org/r/1621589395-2435-4-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@nvidia.com>
Split the hem_list_alloc_root_bt() into serval small functions to make the
code flow more clear.
Link: https://lore.kernel.org/r/1621589395-2435-3-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@nvidia.com>
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>
The hcr_mutex was used to serialize mailbox post. Now that mailbox
supports concurrency, this variable is no longer useful.
Fixes: a389d016c0 ("RDMA/hns: Enable all CMDQ context")
Link: https://lore.kernel.org/r/1621482876-35780-4-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 CRQ of CMDQ is unused, so remove code about it.
Link: https://lore.kernel.org/r/1621482876-35780-3-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 same name represents opposite meanings in new/old driver, it is hard
to maintain, so rename them to PI/CI.
Link: https://lore.kernel.org/r/1621482876-35780-2-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 timeout link table works in HIP08 ES version and the hns driver only
support the CS version for HIP08, so delete the related code. Then
simplify the buffer allocation for link table to make the code more
readable.
Link: https://lore.kernel.org/r/1621481751-27375-1-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@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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>
Even in the case of heavy load, direct WQE can still be posted. The
hardware will decide whether to drop the DWQE or not. Thus, the limit
needs to be removed.
Fixes: 01584a5edc ("RDMA/hns: Add support of direct wqe")
Link: https://lore.kernel.org/r/1619593950-29414-1-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>
This is significantly bug fixes and general cleanups. The noteworthy new
features are fairly small:
- XRC support for HNS and improves RQ operations
- Bug fixes and updates for hns, mlx5, bnxt_re, hfi1, i40iw, rxe, siw and
qib
- Quite a few general cleanups on spelling, error handling, static checker
detections, etc
- Increase the number of device ports supported beyond 255. High port
count software switches now exist
- Several bug fixes for rtrs
- mlx5 Device Memory support for host controlled atomics
- Report SRQ tables through to rdma-tool
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"This is significantly bug fixes and general cleanups. The noteworthy
new features are fairly small:
- XRC support for HNS and improves RQ operations
- Bug fixes and updates for hns, mlx5, bnxt_re, hfi1, i40iw, rxe, siw
and qib
- Quite a few general cleanups on spelling, error handling, static
checker detections, etc
- Increase the number of device ports supported beyond 255. High port
count software switches now exist
- Several bug fixes for rtrs
- mlx5 Device Memory support for host controlled atomics
- Report SRQ tables through to rdma-tool"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (145 commits)
IB/qib: Remove redundant assignment to ret
RDMA/nldev: Add copy-on-fork attribute to get sys command
RDMA/bnxt_re: Fix a double free in bnxt_qplib_alloc_res
RDMA/siw: Fix a use after free in siw_alloc_mr
IB/hfi1: Remove redundant variable rcd
RDMA/nldev: Add QP numbers to SRQ information
RDMA/nldev: Return SRQ information
RDMA/restrack: Add support to get resource tracking for SRQ
RDMA/nldev: Return context information
RDMA/core: Add CM to restrack after successful attachment to a device
RDMA/cma: Skip device which doesn't support CM
RDMA/rxe: Fix a bug in rxe_fill_ip_info()
RDMA/mlx5: Expose private query port
RDMA/mlx4: Remove an unused variable
RDMA/mlx5: Fix type assignment for ICM DM
IB/mlx5: Set right RoCE l3 type and roce version while deleting GID
RDMA/i40iw: Fix error unwinding when i40iw_hmc_sd_one fails
RDMA/cxgb4: add missing qpid increment
IB/ipoib: Remove unnecessary struct declaration
RDMA/bnxt_re: Get rid of custom module reference counting
...
Introduce the VF support by adding code changes to allow VF PCI device
initialization, assgining the reserved resource of the PF to the active
VFs, setting the default abilities, applying the interruptions, resetting
and reducing the default QP/GID number to aovid exceeding the hardware
limitation.
Link: https://lore.kernel.org/r/1617715514-29039-6-git-send-email-liweihang@huawei.com
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Shengming Shu <shushengming1@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>
Switch parameters of all functions belong to a PF should be set including
VFs.
Link: https://lore.kernel.org/r/1617715514-29039-5-git-send-email-liweihang@huawei.com
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Shengming Shu <shushengming1@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Query the resource including EQC/SMAC/SGID from the firmware in the PF and
distribute fairly among all the functions belong to the PF.
Link: https://lore.kernel.org/r/1617715514-29039-4-git-send-email-liweihang@huawei.com
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Shengming Shu <shushengming1@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Query how many functions are supported by the PF from the FW and store it
in the hns_roce_dev structure which will be used to support the
configuration of virtual functions.
Link: https://lore.kernel.org/r/1617715514-29039-3-git-send-email-liweihang@huawei.com
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Shengming Shu <shushengming1@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Use hr_reg_write/read() to simplify codes about configuring function's
resource. And because the design of PF/VF fields is same, they can be
defined only once.
Link: https://lore.kernel.org/r/1617715514-29039-2-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>
As a flush operation is implemented inside destroy_workqueue(), there is
no need to do flush operation before.
Fixes: bfcc681bd0 ("IB/hns: Fix the bug when free mr")
Fixes: 0425e3e6e0 ("RDMA/hns: Support flush cqe for hip08 in kernel space")
Link: https://lore.kernel.org/r/1618305087-30799-1-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>
Replace BUILD_BUG_ON_ZERO() with BUILD_BUG_ON() to avoid sparse
complaining "restricted __le32 degrades to integer".
Link: https://lore.kernel.org/r/1617354454-47840-10-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>
A field to distuiguish basic SRQ from XRC SRQ in SRQC and a field in QPC
to determine whether a QP is XRC TGT QP or XRC INI QP are missing.
Fixes: 32548870d4 ("RDMA/hns: Add support for XRC on HIP09")
Link: https://lore.kernel.org/r/1617354454-47840-8-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>
Some structure members in hns_roce_hw have never been used and need to be
deleted.
Fixes: 9a4435375c ("IB/hns: Add driver files for hns RoCE driver")
Fixes: b156269d88 ("RDMA/hns: Add modify CQ support for hip08")
Fixes: c7bcb13442 ("RDMA/hns: Add SRQ support for hip08 kernel mode")
Link: https://lore.kernel.org/r/1617354454-47840-6-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 register value related to the eq interrupt depends only on
enable_flag, so the redundant condition judgment is deleted.
Fixes: a5073d6054 ("RDMA/hns: Add eq support of hip08")
Link: https://lore.kernel.org/r/1617354454-47840-4-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>
When querying QP, the ULPs should be informed of the max length of inline
data supported by the hardware.
Fixes: 30b707886a ("RDMA/hns: Support inline data in extented sge space for RC")
Link: https://lore.kernel.org/r/1617354454-47840-3-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Use ratelimited print in mbox and cmq. And print mailbox operation if
mailbox fails because it's useful information for the user.
Link: https://lore.kernel.org/r/1617262341-37571-4-git-send-email-liweihang@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@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>
Add error code definition according to the return code from firmware to
help find out more detailed reasons why a command fails to be sent.
Link: https://lore.kernel.org/r/1617262341-37571-3-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>
Fix error of cmd's context number calculation algorithm to enable all of
32 cmd entries and support 32 concurrent accesses.
Link: https://lore.kernel.org/r/1617262341-37571-2-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>
A spin lock is taken here so we should use GFP_ATOMIC.
Fixes: f91696f2f0 ("RDMA/hns: Support congestion control type selection according to the FW")
Link: https://lore.kernel.org/r/20210407154900.3486268-1-weiyongjun1@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.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>
Encapsulate configuring GMV base address and other type of HEM table into
two separate functions to make process of setting HEM clearer.
Link: https://lore.kernel.org/r/1616815294-13434-5-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@nvidia.com>
The 'HNS_ROCE_OPC_QUERY_MB_ST' command will response the mailbox complete
status and hardware busy flag, and the complete status is only valid when
the busy flag is 0, so it's better to query these two fields at a time
rather than separately.
Link: https://lore.kernel.org/r/1616815294-13434-4-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@nvidia.com>
The type of congestion control algorithm includes DCQCN, LDCP, HC3 and
DIP. The driver will select one of them according to the firmware when
querying PF capabilities, and then set the related configuration fields
into QPC.
Link: https://lore.kernel.org/r/1616679236-7795-3-git-send-email-liweihang@huawei.com
Signed-off-by: Yangyang Li <liyangyang20@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>
Add a new type of command to query mac id of functions from the firmware,
it is used to select the template of congestion algorithm. More info will
be supported in the future.
Link: https://lore.kernel.org/r/1616679236-7795-2-git-send-email-liweihang@huawei.com
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Shengming Shu <shushengming1@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Current code uses many different types when dealing with a port of a RDMA
device: u8, unsigned int and u32. Switch to u32 to clean up the logic.
This allows us to make (at least) the core view consistent and use the
same type. Unfortunately not all places can be converted. Many uverbs
functions expect port to be u8 so keep those places in order not to break
UAPIs. HW/Spec defined values must also not be changed.
With the switch to u32 we now can support devices with more than 255
ports. U32_MAX is reserved to make control logic a bit easier to deal
with. As a device with U32_MAX ports probably isn't going to happen any
time soon this seems like a non issue.
When a device with more than 255 ports is created uverbs will report the
RDMA device as having 255 ports as this is the max currently supported.
The verbs interface is not changed yet because the IBTA spec limits the
port size in too many places to be u8 and all applications that relies in
verbs won't be able to cope with this change. At this stage, we are
extending the interfaces that are using vendor channel solely
Once the limitation is lifted mlx5 in switchdev mode will be able to have
thousands of SFs created by the device. As the only instance of an RDMA
device that reports more than 255 ports will be a representor device and
it exposes itself as a RAW Ethernet only device CM/MAD/IPoIB and other
ULPs aren't effected by this change and their sysfs/interfaces that are
exposes to userspace can remain unchanged.
While here cleanup some alignment issues and remove unneeded sanity
checks (mainly in rdmavt),
Link: https://lore.kernel.org/r/20210301070420.439400-1-leon@kernel.org
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Implement the ops named get_dev_fw_str to support ib_get_device_fw_str().
Link: https://lore.kernel.org/r/1615882161-53827-1-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>
It's incorrect to cast the type of pointer to xrcdn from (u32 *) to
(unsigned long *), then pass it into hns_roce_bitmap_alloc(), this will
lead to a memory corruption.
Fixes: 32548870d4 ("RDMA/hns: Add support for XRC on HIP09")
Link: https://lore.kernel.org/r/1616381069-51759-1-git-send-email-liweihang@huawei.com
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
When reloading driver, the head/tail pointer of CMDQ may be not at
position 0. Then during initialization of CMDQ, if head is reset first,
the firmware will start to handle CMDQ because the head is not equal to
the tail. The driver can reset tail first since the firmware will be
triggerred only by head. This bug is introduced by changing macros of
head/tail register without changing the order of initialization.
Fixes: 292b3352bd ("RDMA/hns: Adjust fields and variables about CMDQ tail/head")
Link: https://lore.kernel.org/r/1615602611-7963-1-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>
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>
FRMR is not well-supported on HIP08, it is re-designed for HIP09 and the
position of related fields is changed. Then the ULPs should be forbidden
to use FRMR on older hardwares.
Link: https://lore.kernel.org/r/1612924424-28217-1-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>
The register 0x07014 is actually the head pointer of CMDQ, and 0x07010
means tail pointer. Current definitions are confusing, so rename them and
related variables.
The next_to_use of structure hns_roce_v2_cmq_ring has the same semantics
as head, merge them into one member. The next_to_clean of structure
hns_roce_v2_cmq_ring has the same semantics as tail. After deleting
next_to_clean, tail should also be deleted.
Link: https://lore.kernel.org/r/1612688143-28226-5-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>
CMDQ works serially, after each successful transmission, the head and tail
pointers will be equal, so there is no need to check whether the queue is
full. At the same time, since the descriptor of each transmission is new,
there is no need to perform a cleanup operation. Then, the field named
next_to_clean in structure hns_roce_v2_cmq_ring is redundant.
Fixes: a04ff739f2 ("RDMA/hns: Add command queue support for hip08 RoCE driver")
Link: https://lore.kernel.org/r/1612688143-28226-4-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@nvidia.com>
When posting a multi-descriptors command, the error code of previous
failed descriptors may be rewrote to 0 by a later successful descriptor.
Fixes: a04ff739f2 ("RDMA/hns: Add command queue support for hip08 RoCE driver")
Link: https://lore.kernel.org/r/1612688143-28226-3-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>
last_status of structure hns_roce_v2_cmq has never been used, and the
variable named 'complete' in __hns_roce_cmq_send() is meaningless.
Fixes: a04ff739f2 ("RDMA/hns: Add command queue support for hip08 RoCE driver")
Link: https://lore.kernel.org/r/1612688143-28226-2-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>
There is no need to use a for loop to assign values for an array of cmd
descriptors which has only two elements.
Link: https://lore.kernel.org/r/1612517974-31867-13-git-send-email-liweihang@huawei.com
Signed-off-by: Xinhao Liu <liuxinhao5@hisilicon.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The hns driver wrap around the consumer index of AEQ and CEQ when they
reach to two times of queue entries number for owner mechanism, actually,
it is unnecessary to wrap around since the hardware itself will mask it
before use.
Link: https://lore.kernel.org/r/1612517974-31867-12-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>
All fields of WQE will be rewrote, so the memset is unnecessary. And when
SQ is working in OWNER mode, the pipeline may prefetch the WQEs beyond PI,
the memset operation may flip the owner bit too early, then the pipeline
may get a wrong WQ.
Link: https://lore.kernel.org/r/1612517974-31867-11-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>
Use macros instead of magic numbers to represent shift of dma_handle_wqe,
dma_handle_idx and UDP destination port number of RoCEv2.
Link: https://lore.kernel.org/r/1612517974-31867-10-git-send-email-liweihang@huawei.com
Signed-off-by: Xinhao Liu <liuxinhao5@hisilicon.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
hns_roce_device.h is not specific to hardware, some definitions are only
used for HIP06, they should be moved into hns_roce_hw_v1.h.
Link: https://lore.kernel.org/r/1612517974-31867-9-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>
Currently, the driver updates doorbell looks like this:
post()
{
wqe.field = 0x111;
wmb();
update_wq_db();
}
update_wq_db()
{
db.field = 0x222;
__raw_writeq(db, db_reg);
}
writeq() is a better choice than __raw_writeq() because it calls dma_wmb()
to barrier in ARM64, and dma_wmb() is better than wmb() for ROCEE device.
This patch removes all wmb() before updating doorbell of SQ/RQ/CQ/SRQ by
replacing __raw_writeq() with writeq() to improve performence. The new
process looks like this:
post()
{
wqe.field = 0x111;
update_wq_db();
}
update_wq_db()
{
db.field = 0x222;
writeq(db, db_reg);
}
Link: https://lore.kernel.org/r/1612517974-31867-8-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>
This feature should only be enabled by querying capability from firmware.
Fixes: ba6bb7e974 ("RDMA/hns: Add interfaces to get pf capabilities from firmware")
Link: https://lore.kernel.org/r/1612517974-31867-5-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@nvidia.com>
Add the mapped page count checking flow to avoid invalid page size when
creating MTR.
Fixes: 38389eaa4d ("RDMA/hns: Add mtr support for mixed multihop addressing")
Link: https://lore.kernel.org/r/1612517974-31867-4-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@nvidia.com>
This bit should be in type of enum ib_sig_type, or there will be a sparse
warning.
Fixes: bfe860351e ("RDMA/hns: Fix cast from or to restricted __le32 for driver")
Link: https://lore.kernel.org/r/1612517974-31867-3-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>
ULP usually set IB(V)_QP_AV when trying to modify QP to RTR if they want
to record sgid index into QPC. For UD QPs, it is useless because it will
be included in WQE. For RC QPs, it will be filled in
hns_roce_set_path(). So sgid index shouldn't be filled by default. Then
hns_get_gid_index() is moved to hns_roce_hw_v1.c because it is only called
in it.
Fixes: 926a01dc00 ("RDMA/hns: Add QP operations support for hip08 SoC")
Link: https://lore.kernel.org/r/1612517974-31867-2-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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.
Link: https://lore.kernel.org/r/1611997513-27107-1-git-send-email-liweihang@huawei.com
Signed-off-by: Yixing Liu <liuyixing1@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>
The SRQ in the hns driver consists of the following four parts:
* wqe buf: the buffer to store WQE.
* wqe_idx buf: the cqe of SRQ may be not generated in the order of wqe, so
the wqe_idx corresponding to the idle WQE needs to be pushed into the
index queue which is a FIFO, then it instructs the hardware to obtain
the corresponding WQE.
* bitmap: bitmap is used to generate and release wqe_idx. When the user
has a new WR, the driver finds the idx of the idle wqe in bitmap. When
the CQE of wqe is generated, the driver will release the idx.
* wr_id buf: wr_id buf is used to store the user's wr_id, then return it
to the user when poll_cq verb is invoked.
The process of post SRQ recv is refactored to make preceding code clearer.
Link: https://lore.kernel.org/r/1611997090-48820-12-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>
The HIP09 requires the driver to clear the unused data segments in wqe
buffer to make the hns ROCEE stop reading the remaining invalid sges for
RQ.
Link: https://lore.kernel.org/r/1611997090-48820-11-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>
Reduce parameter numbers of write_srqc() and move some related code into
it from alloc_srqc().
Link: https://lore.kernel.org/r/1611997090-48820-8-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>
Split the SRQ creation process into multiple steps and encapsulate them
into functions.
Link: https://lore.kernel.org/r/1611997090-48820-7-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>
Each SRQs contain an reserved WQE, it is inappropriate and should be
removed.
Fixes: c7bcb13442 ("RDMA/hns: Add SRQ support for hip08 kernel mode")
Link: https://lore.kernel.org/r/1611997090-48820-6-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>
When an error occurs, the qp_table must be cleared, regardless of whether
the SRQ feature is enabled.
Fixes: 5c1f167af1 ("RDMA/hns: Init SRQ table for hip08")
Link: https://lore.kernel.org/r/1611997090-48820-5-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>
