- 05 Dec, 2018 4 commits
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Lijun Ou authored
This patch implements the process flow of SRQ asynchronous event. Signed-off-by:
Lijun Ou <oulijun@huawei.com> Signed-off-by:
Jason Gunthorpe <jgg@mellanox.com>
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Lijun Ou authored
This patch implements the SRQ(Share Receive Queue) verbs and update the poll cq verbs to deal with SRQ complentions. Signed-off-by:
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Lijun Ou authored
This patch inits hem resource for SRQ table, includes SRQWQE and SRQWQE index resource. Signed-off-by:
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Lijun Ou authored
This patch configures the flags for enabling the SRQ(Share Receive Queue) capacity as well as update the verb of querying device for setting srq specifications. Signed-off-by:
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- 04 Dec, 2018 20 commits
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Doug Ledford authored
From Yishai, ----------------------------------- This series enriches DEVX support in few aspects: it enables interoperability between DEVX and verbs and improves mechanism for controlling privileged DEVX commands. The first patch updates mlx5 ifc file. Next 3 patches enable modifying and querying verbs objects via the DEVX interface. To achieve that the core layer introduced the 'UVERBS_IDR_ANY_OBJECT' type to match any IDR object. Once it's used by some driver's method, the infrastructure skips checking for the IDR type and it becomes the driver handler responsibility. The DEVX methods of modify and query were changed to get any object type via the 'UVERBS_IDR_ANY_OBJECT' mechanism. The type checking is done per object as part of the driver code. The next 3 patches introduce more robust mechanism for controlling privileged DEVX commands. The responsibility to block/allow per command was moved to be done in the firmware based on the UID credentials that the driver reports upon user context creation. This enables more granularity per command based on the device security model and the user credentials. In addition, by introducing a valid range for 'general commands' we prevent the need to touch the driver's code any time that a new future command will be added. The last patch fixes the XRC verbs flow once a DEVX context is used. This is needed as XRCD is some shared kernel resource and as such a kernel UID (=0) should be used in its related resources. Thanks Yishai Hadas ----------------------------------- The top 6 patches are the mlx5-devx series, the remainder are from the mlx5-next tree as the mlx5-devx series depended on the mlx5-next mlx5_ifc file update. * mlx5-devx: (42 commits) IB/mlx5: Allow XRC usage via verbs in DEVX context IB/mlx5: Update the supported DEVX commands IB/mlx5: Enforce DEVX privilege by firmware IB/mlx5: Enable modify and query verbs objects via DEVX IB/core: Enable getting an object type from a given uobject IB/core: Introduce UVERBS_IDR_ANY_OBJECT net/mlx5: Update mlx5_ifc with DEVX UCTX capabilities bits RDMA/mlx5: Unfold modify RMP function RDMA/mlx5: Unfold create RMP function RDMA/mlx5: Initialize SRQ tables on mlx5_ib RDMA/mlx5: Update SRQ functions signatures to mlx5_ib format RDMA/mlx5: Use stages for callback to setup and release DEVX RDMA/mlx5: Remove SRQ signature global flag net/mlx5: Move SRQ functions to RDMA part net/mlx5: Remove references to local mlx5_core functions net/mlx5: Remove not-used lib/eq.h header file net/mlx5: Remove dead transobj code net/mlx5: Align SRQ licenses and copyright information net/mlx5: Debug print for forwarded async events net/mlx5: Forward SRQ resource events ... Signed-off-by:Doug Ledford <dledford@redhat.com>
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Yishai Hadas authored
Allows XRC usage from the verbs flow in a DEVX context. As XRCD is some shared kernel resource between processes it should be created with UID=0 to point on that. As a result once XRC QP/SRQ are created they must be used as well with UID=0 so that firmware will allow the XRCD usage. Signed-off-by:
Yishai Hadas <yishaih@mellanox.com> Reviewed-by:
Artemy Kovalyov <artemyko@mellanox.com> Signed-off-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
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Yishai Hadas authored
Update the supported DEVX commands, it includes adding to the query/modify command's list and to the encoding handling. In addition, a valid range for general commands was added to be used for future commands. Signed-off-by:
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Yishai Hadas authored
Enforce DEVX privilege by firmware, this enables future device functionality without the need to make driver changes unless a new privilege type will be introduced. Signed-off-by:
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Yishai Hadas authored
Enables modify and query verbs objects via the DEVX interface. To support this the above DEVX handlers were changed to get any object type via the UVERBS_IDR_ANY_OBJECT mechanism. The type checking and handling is done per object as part of the driver code. Signed-off-by:
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Yishai Hadas authored
Enable getting an object type from a given uobject, the type is saved upon tree merging and is returned as part of some helper function. Signed-off-by:
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Yishai Hadas authored
Introduce the UVERBS_IDR_ANY_OBJECT type to match any IDR object. Once used, the infrastructure skips checking for the IDR type, it becomes the driver handler responsibility. This enables drivers to get in a given method an object from various of types. Signed-off-by:
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Doug Ledford authored
The enhanced devx support series needs commit: 9d43faac ("net/mlx5: Update mlx5_ifc with DEVX UCTX capabilities bits") Signed-off-by:
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Yishai Hadas authored
Expose device capabilities for DEVX user context, it includes which caps the device is supported and a matching bit to set as part of user context creation. Signed-off-by:
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Leon Romanovsky authored
There is no need to perform modify_rmp in two separate function, while one of them uses stack as a placeholder for data while other allocates it dynamically. Combine those two functions to one call instead of two. Reviewed-by:
Mark Bloch <markb@mellanox.com> Signed-off-by:
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Leon Romanovsky authored
There is no need to perform create_rmp in two separate function, while one of them uses stack as a placeholder for data while other allocates it dynamically. Combine those two functions to one instead of two. Reviewed-by:
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Leon Romanovsky authored
Transfer initialization and cleanup from mlx5_priv struct of mlx5_core_dev to be part of mlx5_ib_dev. This completes removal of SRQ from mlx5_core. Reviewed-by:
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Leon Romanovsky authored
Reflect the change of moving SRQ code from mlx5_core to mlx5_ib by updating function signatures do not require mlx5_core_dev as an input, because all operations in mlx5_ib are supposed to use mlx5_ib_dev. Reviewed-by:
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Leon Romanovsky authored
Reuse existing infrastructure to initialize and release DEVX uid. The DevX interface is intended for user space access, so it is supposed to be initialized before ib_register_device(). Also it isn't supported in switchdev mode and don't need to initialize it in that mode. Fixes: 76dc5a84 ("IB/mlx5: Manage device uid for DEVX white list commands") Reviewed-by:
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Leon Romanovsky authored
SRQ signature is not supported, hence no need for special static global variable to announce it. Reviewed-by:
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Leon Romanovsky authored
There is no need to keep SRQ which is RDMA object in mlx5_core. In this patch, we partially move the execution code, while next patches will move table initialization/release logic too. Reviewed-by:
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Leon Romanovsky authored
As a preparation to move SRQ functionality to RDMA, drop all references to mlx5_core logic and make SRQ be dependent on shared code only. Most of the time, we are interested to know if events are working/not working and it is possible with previous commit ("net/mlx5: Debug print for forwarded async events"). Reviewed-by: -
Leon Romanovsky authored
lib/eq.h is needed for EQ manipulation which are not performed in SRQ. Reviewed-by:
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Leon Romanovsky authored
Delete functions which are not called and not needed. Reviewed-by:
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Leon Romanovsky authored
Ensure that both RDMA and netdev parts of SRQ implementation has same copyright and license information annotated by SPDX tags. Reviewed-by:
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- 03 Dec, 2018 16 commits
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Leon Romanovsky authored
[leonro@server ~]$ rdma res show 1: mlx5_0: pd 3 cq 5 qp 4 cm_id 0 mr 0 ctx 0 Signed-off-by:
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Leon Romanovsky authored
Add restrack annotations to track allocations of ucontexts. Signed-off-by:
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Leon Romanovsky authored
Add ability to track allocated ib_ucontext, which are limited resource and worth to be visible by users. Signed-off-by:
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Doug Ledford authored
Make all of the write() handlers use a consistent flow From Jason, This series unifies all the write handlers to use a flow that is very similar to the ioctl handler flow, including having the same basic assumptions about extensible buffer handling and the same handler function call signature. Along the way this consolidates all the copy_to/from_user into a small set of safe buffer accessor functions tailored to the usage here. These accessors use the new dispatcher-controlled calling convention for ucore data, and support a placement of the response that does not rely on the cmd.response value. Overall this brings in in strong bounds checking to all the write() handlers and consistent enforcement of the zero-fill/zero-check methodology for buffer extension. The end result is a significant complexity reduction for all of the handlers and creates a high degree of uniformity between the write, write_ex, and ioctl handlers and dispatch flow. Thanks Jason Gunthorpe (12): RDMA/uverbs: Remove out_len checks that are now done by the core RDMA/uverbs: Use uverbs_attr_bundle to pass ucore for write/write_ex RDMA/uverbs: Get rid of the 'callback' scheme in the compat path RDMA/uverbs: Use uverbs_response() for remaining response copying RDMA/uverbs: Use uverbs_request() for request copying RDMA/uverbs: Use uverbs_request() and core for write_ex handlers RDMA/uverbs: Fill in the response for IB_USER_VERBS_EX_CMD_MODIFY_QP RDMA/uverbs: Simplify ib_uverbs_ex_query_device RDMA/uverbs: Add a simple iterator interface for reading the command RDMA/uverbs: Use the iterator for ib_uverbs_unmarshall_recv() RDMA/uverbs: Do not check the input length on create_cq/qp paths RDMA/uverbs: Use only attrs for the write() handler signature drivers/infiniband/core/rdma_core.h | 5 +- drivers/infiniband/core/uverbs_cmd.c | 1165 ++++++++++--------------- drivers/infiniband/core/uverbs_main.c | 23 +- drivers/infiniband/core/uverbs_uapi.c | 23 +- include/rdma/uverbs_ioctl.h | 9 +- 5 files changed, 479 insertions(+), 746 deletions(-) Signed-off-by: -
Jason Gunthorpe authored
All of the old arguments can be derived from the uverbs_attr_bundle structure, so get rid of the redundant arguments. Most of the prior work has been removing users of the arguments to allow this to be a simple patch. Signed-off-by:
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Jason Gunthorpe authored
If the user did not provide a long enough command buffer then the missing bytes are forced to zero. There is no reason to check the length if a zero value is OK. Signed-off-by:
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Jason Gunthorpe authored
This has a very complicated memory layout, with two flex arrays. Use the iterator API to make reading it clearer. Signed-off-by:
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Jason Gunthorpe authored
Several methods have a command with a trailing flex array, and they all open code some extraction scheme. Centralize this into a simple iterator API. Signed-off-by:
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Jason Gunthorpe authored
We truncate the response structure if there is not enough room in the user buffer so there is no reason to have all the mess with finely managing response_length. Just fully fill the attrs and truncate on copy. Signed-off-by:
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Jason Gunthorpe authored
A response struct was defined, and userspace is providing it (but not checking it). Fill it in and write it out. Signed-off-by:
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Jason Gunthorpe authored
The write_ex handlers have this horrible boilerplate in every function to do the zero extend/zero check and min size checks. This is now handled in the core code via the meta-data, and the zero checks are handled by uverbs_request(). Replace all the occurrences. Signed-off-by:
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Jason Gunthorpe authored
This function properly zero-extends, and zero-checks if the user buffer is not the same size as the kernel command struct. Signed-off-by:
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Jason Gunthorpe authored
This function properly truncates and zero-fills the response which is the standard used by the ioctl uAPI when working with user data. Signed-off-by:
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Jason Gunthorpe authored
There is no reason for this. For response processing we simply need to copy, truncate, and zero fill the response into whatever output buffer was provided. Add a function uverbs_response() that does this consistently. Signed-off-by:
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Jason Gunthorpe authored
This creates a consistent way to access the two core buffers across write and write_ex handlers. Remove the open coded ucore conversion in the write/ex compatibility handlers. Signed-off-by:
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Jason Gunthorpe authored
write() methods must work with fixed sized structures as that is the only way to know where the udata segment starts. The common udata code now rejects any write() that has a response buffer shorter than the core's response. Thus all the checks of out_len for write methods are redundant and can be removed. Signed-off-by:
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