- 03 Aug, 2021 5 commits
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Leon Romanovsky authored
The dev->devr.mutex was intended to protect GSI QP pointer change in the struct mlx5_ib_port_resources when it is accessed from the pkey_change_work. However that pointer isn't changed during the runtime and once IB/core adds MAD, it stays stable. Link: https://lore.kernel.org/r/6e338c561033df20d92e1371fc6a7a0d93aad945.1627040189.git.leonro@nvidia.comSigned-off-by:
Leon Romanovsky <leonro@nvidia.com> Signed-off-by:
Jason Gunthorpe <jgg@nvidia.com>
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Leon Romanovsky authored
In the driver release flow, we are ensuring that notifier is disabled and no new works can be added to pkey_change_handler. It means that we can cancel that handler before destroying resources to make sure that our unwind routine is symmetrical to the allocation one. Link: https://lore.kernel.org/r/f2b1ea1bad952e4e7a48a6f731de9e0344986b29.1627040189.git.leonro@nvidia.comSigned-off-by:
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Leon Romanovsky authored
The QP type is set by the IB/core and shouldn't be set in the driver. Fixes: 40909f66 ("RDMA/efa: Add EFA verbs implementation") Link: https://lore.kernel.org/r/838c40134c1590167b888ca06ad51071139ff2ae.1627040189.git.leonro@nvidia.comAcked-by:
Gal Pressman <galpress@amazon.com> Signed-off-by:
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Leon Romanovsky authored
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: 66d86e52 ("RDMA/hns: Add UD support for HIP09") Link: https://lore.kernel.org/r/5987138875e8ade9aa339d4db6e1bd9694ed4591.1627040189.git.leonro@nvidia.comSigned-off-by:
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Leon Romanovsky authored
The call to internal QP creation function skips QP creation checks and misses the addition of such device QPs to the restrack DB. As a preparation to general allocation scheme, convert hns to use proper API. Link: https://lore.kernel.org/r/7b236c15f7d5abb368958297ac6962d8459cb824.1627040189.git.leonro@nvidia.comSigned-off-by:
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- 30 Jul, 2021 10 commits
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Prabhakar Kushwaha authored
Use -EINVAL return type to identify whether error is returned because of "Out of MR resources" or any other error types. Link: https://lore.kernel.org/r/20210729151732.30995-2-pkushwaha@marvell.comSigned-off-by:
Shai Malin <smalin@marvell.com> Signed-off-by:
Ariel Elior <aelior@marvell.com> Signed-off-by:
Prabhakar Kushwaha <pkushwaha@marvell.com> Signed-off-by:
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Prabhakar Kushwaha authored
To have more accurate error return type use -EOPNOTSUPP instead of -EINVAL. Link: https://lore.kernel.org/r/20210729151732.30995-1-pkushwaha@marvell.comSigned-off-by:
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Cai Huoqing authored
Remove the repeated word 'the' from comments Link: https://lore.kernel.org/r/20210729082346.1882-1-caihuoqing@baidu.comSigned-off-by:
Cai Huoqing <caihuoqing@baidu.com> Signed-off-by:
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Leon Romanovsky authored
Starting from the beginning of infiniband subsystem, the uverbs char devices start from 192 as a minor number, see commit bc38a6ab ("[PATCH] IB uverbs: core implementation"). This patch updates the admin guide documentation to reflect it. Fixes: 9d85025b ("docs-rst: create an user's manual book") Link: https://lore.kernel.org/r/bad03e6bcde45550c01e12908a6fe7dfa4770703.1627477347.git.leonro@nvidia.comSigned-off-by:
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Leon Romanovsky authored
The core netlink code alread guarentees that no netlink callback can be running outside the rdma_nl_register/unregister() region and this registration happens during module init/exit. Thus it is already prevented that iwpm_valid_client() can ever fail. Remove it. Link: https://lore.kernel.org/r/a9f05a78f9996bf6ea47099b5e02671bf742f5ab.1627048781.git.leonro@nvidia.comSigned-off-by:
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Leon Romanovsky authored
iwpm_init() and iwpm_exit() are called only once during iw_cm module load. This makes whole reference count implementation not needed at all. Link: https://lore.kernel.org/r/1778ded873ba58c9fadc5bb25038de1cec843bec.1627048781.git.leonro@nvidia.comSigned-off-by:
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Leon Romanovsky authored
The failure during iw_cm module initialization partially left the system with unreleased memory and other resources. Rewrite the module init/exit routines in such way that netlink commands will be opened only after successful initialization. Fixes: b493d91d ("iwcm: common code for port mapper") Link: https://lore.kernel.org/r/b01239f99cb1a3e6d2b0694c242d89e6410bcd93.1627048781.git.leonro@nvidia.comSigned-off-by:
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Xiyu Yang authored
refcount_t type and corresponding API can protect refcounters from accidental underflow and overflow and further use-after-free situations. Link: https://lore.kernel.org/r/1626674454-56075-1-git-send-email-xiyuyang19@fudan.edu.cnSigned-off-by:
Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by:
Xin Tan <tanxin.ctf@gmail.com> Tested-by:
Josh Fisher <josh.fisher@cornelisnetworks.com> Acked-by:
Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com> Signed-off-by:
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Mike Marciniszyn authored
It is possible for the primary IPoIB network device associated with any RDMA device to fail to join certain multicast groups preventing IPv6 neighbor discovery and possibly other network ULPs from working correctly. The IPv4 broadcast group is not affected as the IPoIB network device handles joining that multicast group directly. This is because the primary IPoIB network device uses the pkey at ndex 0 in the associated RDMA device's pkey table. Anytime the pkey value of index 0 changes, the primary IPoIB network device automatically modifies it's broadcast address (i.e. /sys/class/net/[ib0]/broadcast), since the broadcast address includes the pkey value, and then bounces carrier. This includes initial pkey assignment, such as when the pkey at index 0 transitions from the opa default of invalid (0x0000) to some value such as the OPA default pkey for Virtual Fabric 0: 0x8001 or when the fabric manager is restarted with a configuration change causing the pkey at index 0 to change. Many network ULPs are not sensitive to the carrier bounce and are not expecting the broadcast address to change including the linux IPv6 stack. This problem does not affect IPoIB child network devices as their pkey value is constant for all time. To mitigate this issue, change the default pkey in at index 0 to 0x8001 to cover the predominant case and avoid issues as ipoib comes up and the FM sweeps. At some point, ipoib multicast support should automatically fix non-broadcast addresses as it does with the primary broadcast address. Fixes: 77241056 ("IB/hfi1: add driver files") Link: https://lore.kernel.org/r/20210715160445.142451.47651.stgit@awfm-01.cornelisnetworks.comSuggested-by:
Josh Collier <josh.d.collier@intel.com> Signed-off-by:
Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com> Signed-off-by:
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Mike Marciniszyn authored
There is no counter for dmawait in AIP, which hampers debugging performance issues. Add the counter increment when the txq is queued. Fixes: d99dc602 ("IB/hfi1: Add functions to transmit datagram ipoib packets") Link: https://lore.kernel.org/r/20210715160440.142451.8278.stgit@awfm-01.cornelisnetworks.comSigned-off-by:
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- 20 Jul, 2021 3 commits
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Jason Gunthorpe authored
Leon Romanovsky says: ==================== Add ConnectX DCS offload support This patchset from Lior adds support of DCI stream channel (DCS) support. DCS is an offload to SW load balancing of DC initiator work requests. A single DC QP initiator (DCI) can be connected to only one target at the time and can't start new connection until the previous work request is completed. This limitation causes to delays when the initiator process needs to transfer data to multiple targets at the same time. ==================== * branch 'mlx5_dcs': RDMA/mlx5: Add DCS offload support RDMA/mlx5: Separate DCI QP creation logic net/mlx5: Add DCS caps & fields support
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Lior Nahmanson authored
DCS is an offload to SW load balancing of DC initiator work requests. A single DCI can be connected to only one target at the time and can't start new connection until the previous work request is completed. This limitation will cause to delay when the initiator process needs to transfer data to multiple targets at the same time. The SW solution is to use a process that handling and spreading the work request on many DCIs according to destinations. This feature is an offload to this process and coming to reduce the load from the CPU and improve the performance. Link: https://lore.kernel.org/r/491c2c2afdb5b07de7f03eab3f93cf0704549dbc.1624258894.git.leonro@nvidia.comReviewed-by:
Meir Lichtinger <meirl@nvidia.com> Signed-off-by:
Lior Nahmanson <liorna@nvidia.com> Signed-off-by:
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Lior Nahmanson authored
This patch isolates DCI QP creation logic to separate function, so this change will reduce complexity when adding new features to DCI QP without interfering with other QP types. The code was copied from create_user_qp() while taking only DCI relevant bits. Link: https://lore.kernel.org/r/b4530bdd999349c59691224f016ff1efb5dc3b92.1624258894.git.leonro@nvidia.comReviewed-by:
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- 18 Jul, 2021 1 commit
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Lior Nahmanson authored
This fields will be needed when adding a support for DCS offload max_dci_stream_channels - maximum DCI stream channels supported per DCI. max_dci_errored_streams - maximum DCI error stream channels supported per DCI before a DCI move to error state. Signed-off-by:
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- 16 Jul, 2021 12 commits
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Bob Pearson authored
Currently the ICRC is generated as a u32 type and then forced to a __be32 and stored into the ICRC field in the packet. The actual type of the ICRC is __be32. This patch replaces u32 by __be32 and eliminates the casts. The computation is exactly the same as the original but the types are more consistent. Link: https://lore.kernel.org/r/20210707040040.15434-10-rpearsonhpe@gmail.comSigned-off-by:
Bob Pearson <rpearsonhpe@gmail.com> Signed-off-by:
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Bob Pearson authored
This patch adds kernel-doc style comments to rxe_icrc.c Link: https://lore.kernel.org/r/20210707040040.15434-9-rpearsonhpe@gmail.comSigned-off-by:
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Bob Pearson authored
This patch collects the code from rxe_register_device() that sets up the crc32 calculation into a subroutine rxe_icrc_init() in rxe_icrc.c. Link: https://lore.kernel.org/r/20210707040040.15434-8-rpearsonhpe@gmail.comSigned-off-by:
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Bob Pearson authored
rxe_icrc_hdr() in rxe_icrc.c is no longer shared. This patch makes it static and changes the parameter list to match the other routines there. Link: https://lore.kernel.org/r/20210707040040.15434-7-rpearsonhpe@gmail.comSigned-off-by:
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Bob Pearson authored
Move rxe_crc32() from rxe.h to rxe_icrc.c as a static local function. Link: https://lore.kernel.org/r/20210707040040.15434-6-rpearsonhpe@gmail.comSigned-off-by:
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Bob Pearson authored
Isolate ICRC generation into a single subroutine named rxe_generate_icrc() in rxe_icrc.c. Remove scattered crc generation code from elsewhere. Link: https://lore.kernel.org/r/20210707040040.15434-5-rpearsonhpe@gmail.comSigned-off-by:
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Bob Pearson authored
Fixup rxe_send() and rxe_loopback() in rxe_net.c to have the same calling sequence. This patch makes them static and have the same parameter list and return value. Link: https://lore.kernel.org/r/20210707040040.15434-4-rpearsonhpe@gmail.comSigned-off-by:
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Bob Pearson authored
rxe_xmit_packet() was an overlong inline subroutine. This patch moves it into rxe_net.c as an ordinary subroutine. Link: https://lore.kernel.org/r/20210707040040.15434-3-rpearsonhpe@gmail.comSigned-off-by:
Zhu Yanjun <zyjzyj2000@gmail.com> Signed-off-by:
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Bob Pearson authored
Move the code in rxe_recv() that checks the ICRC on incoming packets to a subroutine rxe_check_icrc() and move that to rxe_icrc.c. Link: https://lore.kernel.org/r/20210707040040.15434-2-rpearsonhpe@gmail.comSigned-off-by:
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Anand Khoje authored
ib_query_port() calls device->ops.query_port() to get the port attributes. The method of querying is device driver specific. The same function calls device->ops.query_gid() to get the GID and extract the subnet_prefix (gid_prefix). The GID and subnet_prefix are stored in a cache. But they do not get read from the cache if the device is an Infiniband device. The following change takes advantage of the cached subnet_prefix. Testing with RDBMS has shown a significant improvement in performance with this change. Link: https://lore.kernel.org/r/20210712122625.1147-4-anand.a.khoje@oracle.comSigned-off-by:
Anand Khoje <anand.a.khoje@oracle.com> Signed-off-by:
Haakon Bugge <haakon.bugge@oracle.com> Signed-off-by:
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Anand Khoje authored
The lock cache_lock of struct ib_device is initialized in function ib_cache_setup_one(). This is much later than the device initialization in _ib_alloc_device(). This change shifts initialization of cache_lock in _ib_alloc_device(). Link: https://lore.kernel.org/r/20210712122625.1147-3-anand.a.khoje@oracle.comSuggested-by:
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Anand Khoje authored
Currently, cache for subnet_prefix was getting updated by reading port attributes via ib_query_port. ib_query_port() calls ops.query_gid() to get subnet_prefix and returns it via port_attr. In ib_cache_update(), config_non_roce_gid_cache() obtains GIDs by calling ops.query_gid(). We utilize this to store subnet_prefix in cache. Link: https://lore.kernel.org/r/20210712122625.1147-2-anand.a.khoje@oracle.comSuggested-by:
Aru Kolappan <aru.kolappan@oracle.com> Signed-off-by:
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- 15 Jul, 2021 9 commits
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Gal Pressman authored
The hardware stats API distinguishes between device and port statistics, split the EFA stats accordingly instead of always dumping everything. Link: https://lore.kernel.org/r/20210712105923.17389-1-galpress@amazon.comReviewed-by:
Firas JahJah <firasj@amazon.com> Reviewed-by:
Yossi Leybovich <sleybo@amazon.com> Signed-off-by:
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Weihang Li authored
Lijun has moved to work in other technical areas, and Wenpeng will maintain this modules instead of him. Link: https://lore.kernel.org/r/1625741958-51363-1-git-send-email-liweihang@huawei.comSigned-off-by:
Weihang Li <liweihang@huawei.com> Signed-off-by:
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Xiao Yang authored
Drop duplicated code Link: https://lore.kernel.org/r/20210702123024.37025-1-ice_yangxiao@163.comSigned-off-by:
Xiao Yang <yangx.jy@fujitsu.com> Reviewed-by:
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Ira Weiny authored
kmap() is being deprecated and will break uses of device dax after PKS protection is introduced.[1] The use of kmap() in siw_tx_hdt() is all thread local therefore kmap_local_page() is a sufficient replacement and will work with pgmap protected pages when those are implemented. siw_tx_hdt() tracks pages used in a page_array. It uses that array to unmap pages which were mapped on function exit. Not all entries in the array are mapped and this is tracked in kmap_mask. kunmap_local() takes a mapped address rather than a page. Alter siw_unmap_pages() to take the iov array to reuse the iov_base address of each mapping. Use PAGE_MASK to get the proper address for kunmap_local(). kmap_local_page() mappings are tracked in a stack and must be unmapped in the opposite order they were mapped in. Because segments are mapped into the page array in increasing index order, modify siw_unmap_pages() to unmap pages in decreasing order. Use kmap_local_page() instead of kmap() to map pages in the page_array. [1] https://lore.kernel.org/lkml/20201009195033.3208459-59-ira.weiny@intel.com/ Link: https://lore.kernel.org/r/20210624174814.2822896-1-ira.weiny@intel.comSigned-off-by:
Ira Weiny <ira.weiny@intel.com> Reviewed-by:
Bernard Metzler <bmt@zurich.ibm.com> Signed-off-by:
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Ira Weiny authored
kmap() is being deprecated and will break uses of device dax after PKS protection is introduced.[1] These uses of kmap() in the SIW driver are thread local. Therefore kmap_local_page() is sufficient to use and will work with pgmap protected pages when those are implemnted. There is one more use of kmap() in this driver which is split into its own patch because kmap_local_page() has strict ordering rules and the use of the kmap_mask over multiple segments must be handled carefully. Therefore, that conversion is handled in a stand alone patch. Use kmap_local_page() instead of kmap() in the 'easy' cases. [1] https://lore.kernel.org/lkml/20201009195033.3208459-59-ira.weiny@intel.com/ Link: https://lore.kernel.org/r/20210622061422.2633501-4-ira.weiny@intel.comSigned-off-by:
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Jack Wang authored
In order to account HB for sq_wr_avail properly, move sq_wr_avail from rtrs_srv_con to rtrs_con. Although rtrs-clt do not care sq_wr_avail, but still init it to max_send_wr. Fixes: b38041d5 ("RDMA/rtrs: Do not signal for heatbeat") Link: https://lore.kernel.org/r/20210712060750.16494-7-jinpu.wang@ionos.comSigned-off-by:
Jack Wang <jinpu.wang@ionos.com> Reviewed-by:
Aleksei Marov <aleksei.marov@ionos.com> Reviewed-by:
Gioh Kim <gi-oh.kim@ionos.com> Reviewed-by:
Md Haris Iqbal <haris.iqbal@ionos.com> Signed-off-by:
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Jack Wang authored
flags is not used, so remove it from rtrs_post_rdma_write_imm_empty. Link: https://lore.kernel.org/r/20210712060750.16494-6-jinpu.wang@ionos.comSigned-off-by:
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Jack Wang authored
It's only used in rtrs.c, so no need to export. Link: https://lore.kernel.org/r/20210712060750.16494-5-jinpu.wang@ionos.comSigned-off-by:
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Jack Wang authored
On idle session, because we do not do signal for heartbeat, it will overflow the send queue after sometime. To avoid that, we need to enable the signal for heartbeat. To do that, add a new member signal_interval in rtrs_path, which will set min of queue_depth and SERVICE_CON_QUEUE_DEPTH, and track it for both heartbeat and IO, so the sq queue full accounting is correct. Fixes: b38041d5 ("RDMA/rtrs: Do not signal for heatbeat") Link: https://lore.kernel.org/r/20210712060750.16494-4-jinpu.wang@ionos.comSigned-off-by:
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