Following patch adds additional argument to the create AH function, so it
make sense to group ah_attr and flags arguments in struct.
Link: https://lore.kernel.org/r/20200430192146.12863-13-maorg@mellanox.com
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Acked-by: Devesh Sharma <devesh.sharma@broadcom.com>
Acked-by: Gal Pressman <galpress@amazon.com>
Acked-by: Weihang Li <liweihang@huawei.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
RAW packet QP and underlay QP must be created with either
RQ or SQ, check that.
Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Link: https://lore.kernel.org/r/20200427154636.381474-37-leon@kernel.org
Signed-off-by: Aharon Landau <aharonl@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Finish separation to blocks of mlx5_ib_create_qp() functions,
so all internal create QP implementation are located in one place.
Link: https://lore.kernel.org/r/20200427154636.381474-36-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
After major refactoring in create QP flow, it is no needed to call
to destroy QP in XRC_TGT flow.
Link: https://lore.kernel.org/r/20200427154636.381474-35-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Update all the places in create QP flows to copy response
to the user in one place.
Link: https://lore.kernel.org/r/20200427154636.381474-34-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Place in one function all udata size checks. This will allow
us move ib_copy_to_udata() in general place and ensure that
it will be performed after call to the FW.
Link: https://lore.kernel.org/r/20200427154636.381474-33-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Move check that user didn't supplied RSS RAW QP unsupported
command flags to the function that checks all such flags.
Link: https://lore.kernel.org/r/20200427154636.381474-32-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The amount of parameters passed in and out between internal mlx5
create QP functions is too large to easily follow the flow. Change
it by grouping all create QP parameter into one structure.
Link: https://lore.kernel.org/r/20200427154636.381474-31-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Delete both PD argument and checks if udata was provided, in favour
of unified destroy QP functions.
Link: https://lore.kernel.org/r/20200427154636.381474-30-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The kernel and user create QP flows have very little common code,
separate them to simplify the future work of creating per-type
create_*_qp() functions.
Link: https://lore.kernel.org/r/20200427154636.381474-29-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
XRC_TGT QP doesn't fail into kernel or user flow separation. It is
initiated by the user, but is created through in-kernel verbs flow
and doesn't have PD and udata in similar way to kernel QPs.
So let's separate creation of that QP type from the common flow.
Link: https://lore.kernel.org/r/20200427154636.381474-28-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Remove duplication in parsing of DEVX UID.
Link: https://lore.kernel.org/r/20200427154636.381474-27-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The inlen is set to be above zero in all flows before
and can't be negative at this stage.
Link: https://lore.kernel.org/r/20200427154636.381474-26-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Instead of keeping special field to separate kernel/user create/destroy
flows, rely on existence of udata pointer. All allocation flows are
using kzalloc() and leave uninitialized pointers as NULL which makes
MLX5_QP_EMPTY and MLX5_QP_KERNEL flows to be the same.
Link: https://lore.kernel.org/r/20200427154636.381474-25-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Combine copy_from_user() from create_user_qp() and general code.
Link: https://lore.kernel.org/r/20200427154636.381474-24-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Change the create QP flow to handle all copy_from_user() operations in
one place.
Link: https://lore.kernel.org/r/20200427154636.381474-23-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Perform check of attributes of RAW PACKET QP in separate function.
Link: https://lore.kernel.org/r/20200427154636.381474-22-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
QP type is stored in the IB/core QP struct, but it doesn't have all the
needed information, like internal QP type used in the driver itself.
Update mlx5_ib to have cached QP type which includes both IBTA and
Mellanox specific one.
Such change allows us to make even further cleanup of QP creation flow.
Link: https://lore.kernel.org/r/20200427154636.381474-21-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
There is no need to explicitly check unsupported QP types,
rely on "default" keyword in switch-case to catch them.
Link: https://lore.kernel.org/r/20200427154636.381474-20-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Leon Romanovsky says:
====================
This is first part of series which tries to return some sanity to
mlx5_ib_create_qp() function. Such refactoring is required to make
extension of that function with less worries of breaking driver.
Extra goal of such refactoring is to ensure that QP is allocated at the
beginning of function and released at the end. It will allow us to move QP
allocation to be under IB/core responsibility.
====================
Based on the mlx5-next branch at
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Due to dependencies
* branch 'mlx5_ib_qp_refactor_1': (66 commits)
RDMA/mlx5: Process all vendor flags in one place
RDMA/mlx5: Return all configured create flags through query QP
RDMA/mlx5: Change scatter CQE flag to be set like other vendor flags
RDMA/mlx5: Use flags_en mechanism to mark QP created with WQE signature
RDMA/mlx5: Process create QP flags in one place
RDMA/mlx5: Delete create QP flags obfuscation
RDMA/mlx5: Initial separation of RAW_PACKET QP from common flow
RDMA/mlx5: Remove second copy from user for non RSS RAW QPs
RDMA/mlx5: Move DRIVER QP flags check into separate function
RDMA/mlx5: Update all DRIVER QP places to use QP subtype
RDMA/mlx5: Split scatter CQE configuration for DCT QP
RDMA/mlx5: Separate create QP flows to be based on type
RDMA/mlx5: Set QP subtype immediately when it is known
RDMA/mlx5: Avoid setting redundant NULL for XRC QPs
RDMA/mlx5: Prepare QP allocation for future removal
RDMA/mlx5: Perform check if QP creation flow is valid
RDMA/mlx5: Delete impossible GSI port check
RDMA/mlx5: Organize QP types checks in one place
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Check that vendor flags provided through ucmd are valid.
Link: https://lore.kernel.org/r/20200427154636.381474-19-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The "flags" field in struct mlx5_ib_qp contains all UAPI flags
configured at the create QP stage. Return all the data as is
without masking.
Link: https://lore.kernel.org/r/20200427154636.381474-18-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
In similar way to wqe_sig, the scat_cqe was treated differently from
other create QP vendor flags. Change it to be similar to other flags
and use flags_en mechanism.
Link: https://lore.kernel.org/r/20200427154636.381474-17-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
MLX5_QP_FLAG_SIGNATURE is exposed to the users but in the kernel
the create_qp flow treated it differently from other MLX5_QP_FLAG_*s.
Fix it by ditching wq_sig boolean variable and use general flag_en
mechanism.
Link: https://lore.kernel.org/r/20200427154636.381474-16-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
create_flags is checked in too many places and scattered across all
the code, consolidate all the checks inside one function, so we will
be easily see the flow. As part of such change, delete unreachable code,
because IB/core is responsible sanitize the input.
Link: https://lore.kernel.org/r/20200427154636.381474-15-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
There is no point in redefinition of stable and exposed to users create
flags. Their values won't be changed and it is equal to used by the
mlx5. Delete the mlx5 definitions and use IB/core fields.
Link: https://lore.kernel.org/r/20200427154636.381474-14-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Create initial function for IB_QPT_RAW_PACKET flow.
Link: https://lore.kernel.org/r/20200427154636.381474-13-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Change the common code to use already copied user command buffer.
Link: https://lore.kernel.org/r/20200427154636.381474-12-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Perform validation of DRIVER QP in relevant function.
Link: https://lore.kernel.org/r/20200427154636.381474-11-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Instead of overwriting QP init attributes with driver QP subtype,
use that subtype directly. This change will allow us to remove
logic which cached QP init attributes.
Link: https://lore.kernel.org/r/20200427154636.381474-10-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
DCT QPs have separate creation flow and can be easily extracted
from configure_responder_scat_cqe(), this makes both updated
functions more clear.
Link: https://lore.kernel.org/r/20200427154636.381474-9-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Move driver QP creation flow to separate functions to simplify
the create_qp() and allow future separation of create_qp_common()
to subtypes.
Link: https://lore.kernel.org/r/20200427154636.381474-8-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
There is no need to delay QP subtype assignment to the end of the
create_qp() function and it is better to move it to be immediately
after it is checked so we would be able to rewrite later checks
to be based on it and not on over-written struct ib_qp_init_attr.
Link: https://lore.kernel.org/r/20200427154636.381474-7-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
There is no need to set NULL in recv_cq and send_cq, they are already
set to NULL by the IB/core logic.
Link: https://lore.kernel.org/r/20200427154636.381474-6-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Unify the QP memory allocation across different paths,
so it will be in one place.
Link: https://lore.kernel.org/r/20200427154636.381474-5-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Fast check that kernel and user flows provides enough
data to create QP.
Link: https://lore.kernel.org/r/20200427154636.381474-4-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
GSI QP is created in the kernel with very strict parameters,
there is no possible way that port number will be wrong in
such flow.
Link: https://lore.kernel.org/r/20200427154636.381474-3-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Perform check if QP type is supported in one place at the beginning of
the create_qp function instead of current implementation with checks
buried inside of the code.
Link: https://lore.kernel.org/r/20200427154636.381474-2-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The imm_inval_pkey field can hold four different types of data,
depends on the usage, the data could be one of the below:
- Immediate field of the received message
- Invalidate rkey
- Pkey of the packet
- Flow table metadata
Current implementation doesn't reflect the intended usage of the
field at usage time.
Reflect the different types by replace this field with a union,
modify code where this field is used to reflect its intended
usage.
Signed-off-by: Raed Salem <raeds@mellanox.com>
Reviewed-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
The alignment value is part of the input structure, so use it and spare
extra memory allocation when is not needed.
Now, using the new ability when allocating icm for Direct-Rule
insertion.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Add COPY type to modify_header action. IPsec feature is the first
feature that needs COPY steering action.
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
GRH fields such as sgid_index, hop limit, et. are set in the QP context
when QP is created/modified.
Currently, when query QP is performed, we fill the GRH fields only if the
GRH bit is set in the QP context, but this bit is not set for RoCE. Adjust
the check so we will set all relevant data for the RoCE too.
Since this data is returned to userspace, the below is an ABI regression.
Fixes: d8966fcd4c ("IB/core: Use rdma_ah_attr accessor functions")
Link: https://lore.kernel.org/r/20200413132028.930109-1-leon@kernel.org
Signed-off-by: Aharon Landau <aharonl@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The mlx5_core doesn't need any functionality coded in qp.c, so move
that file to drivers/infiniband/ be under mlx5_ib responsibility.
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Sort .o objects in makefile to make addition of new object
less cumbersome.
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
The structures defined in the cmd header are not used and can be safely
removed from the driver. This patch removes that file and deletes all
relevant includes.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Remove mlx5_ib implementation of Q counter allocation logic
together with cleaning boolean which controlled validity of the
counter. It is not needed, because counter_id == 0 means that
counter is not valid.
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
mlx5 core users are encouraged to use low level API (mlx5_cmd_exec)
without the need of helper functions, do this for q counters, remove
helper functions and call mlx5_cmd_exec directly from users.
This will help reduce the total amount of code and reduction of the
mlx5_core symbol table.
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Fix udata response upon SRQ creation to use the UAPI structure (i.e.
mlx5_ib_create_srq_resp). It did not zero the reserved field in userspace.
Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Link: https://lore.kernel.org/r/20200406173540.1466477-1-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The majority of the patches are cleanups, refactorings and clarity
improvements
- Various driver updates for siw, bnxt_re, rxe, efa, mlx5, hfi1
- Lots of cleanup patches for hns
- Convert more places to use refcount
- Aggressively lock the RDMA CM code that syzkaller says isn't working
- Work to clarify ib_cm
- Use the new ib_device lifecycle model in bnxt_re
- Fix mlx5's MR cache which seems to be failing more often with the new
ODP code
- mlx5 'dynamic uar' and 'tx steering' user interfaces
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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:
"The majority of the patches are cleanups, refactorings and clarity
improvements.
This cycle saw some more activity from Syzkaller, I think we are now
clean on all but one of those bugs, including the long standing and
obnoxious rdma_cm locking design defect. Continue to see many drivers
getting cleanups, with a few new user visible features.
Summary:
- Various driver updates for siw, bnxt_re, rxe, efa, mlx5, hfi1
- Lots of cleanup patches for hns
- Convert more places to use refcount
- Aggressively lock the RDMA CM code that syzkaller says isn't
working
- Work to clarify ib_cm
- Use the new ib_device lifecycle model in bnxt_re
- Fix mlx5's MR cache which seems to be failing more often with the
new ODP code
- mlx5 'dynamic uar' and 'tx steering' user interfaces"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (144 commits)
RDMA/bnxt_re: make bnxt_re_ib_init static
IB/qib: Delete struct qib_ivdev.qp_rnd
RDMA/hns: Fix uninitialized variable bug
RDMA/hns: Modify the mask of QP number for CQE of hip08
RDMA/hns: Reduce the maximum number of extend SGE per WQE
RDMA/hns: Reduce PFC frames in congestion scenarios
RDMA/mlx5: Add support for RDMA TX flow table
net/mlx5: Add support for RDMA TX steering
IB/hfi1: Call kobject_put() when kobject_init_and_add() fails
IB/hfi1: Fix memory leaks in sysfs registration and unregistration
IB/mlx5: Move to fully dynamic UAR mode once user space supports it
IB/mlx5: Limit the scope of struct mlx5_bfreg_info to mlx5_ib
IB/mlx5: Extend QP creation to get uar page index from user space
IB/mlx5: Extend CQ creation to get uar page index from user space
IB/mlx5: Expose UAR object and its alloc/destroy commands
IB/hfi1: Get rid of a warning
RDMA/hns: Remove redundant judgment of qp_type
RDMA/hns: Remove redundant assignment of wc->smac when polling cq
RDMA/hns: Remove redundant qpc setup operations
RDMA/hns: Remove meaningless prints
...
* 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
mlx5: Remove uninitialized use of key in mlx5_core_create_mkey
{IB,net}/mlx5: Move asynchronous mkey creation to mlx5_ib
{IB,net}/mlx5: Assign mkey variant in mlx5_ib only
{IB,net}/mlx5: Setup mkey variant before mr create command invocation
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Leon Romanovsky says:
====================
Those two patches from Michael extends mlx5_core and mlx5_ib flow steering
to support RDMA TX in similar way to already supported RDMA RX.
====================
Based on the mlx5-next branch at
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Due to dependencies
* branch 'mlx5_tx_steering':
RDMA/mlx5: Add support for RDMA TX flow table
net/mlx5: Add support for RDMA TX steering
Enable user application to add rules for RDMA TX steering table.
Rules in this steering table will allow to steer transmitted RDMA
traffic.
Link: https://lore.kernel.org/r/20200324061425.1570190-3-leon@kernel.org
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Move to fully dynamic UAR mode once user space supports it. In this case
we prevent any legacy mode of UARs on the allocated context and prevent
redundant allocation of the static ones.
Link: https://lore.kernel.org/r/20200324060143.1569116-6-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
struct mlx5_bfreg_info is used by mlx5_ib only but is exposed to both RDMA
and netdev parts of mlx5 driver. Move that struct to mlx5_ib namespace,
clean vertical space alignment and convert lib_uar_4k from bool to
bitfield.
Link: https://lore.kernel.org/r/20200324060143.1569116-5-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Extend QP creation to get uar page index from user space, this mode can be
used with the UAR dynamic mode APIs to allocate/destroy a UAR object.
As part of enabling this option blocked the weird/un-supported cross
channel option which uses index 0 hard-coded.
This QP flag wasn't exposed to user space as part of any formal upstream
release, the dynamic option can allow having valid UAR page index instead.
Link: https://lore.kernel.org/r/20200324060143.1569116-4-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Extend CQ creation to get uar page index from user space, this mode can be
used with the UAR dynamic mode APIs to allocate/destroy a UAR object.
Link: https://lore.kernel.org/r/20200324060143.1569116-3-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Expose UAR object and its alloc/destroy commands to be used over the ioctl
interface by user space applications.
This API supports both BF & NC modes and enables a dynamic allocation of
UARs once really needed.
As the number of driver objects were limited by the core ones when the
merged tree is prepared, had to decrease the number of core objects to
enable the new UAR object usage.
Link: https://lore.kernel.org/r/20200324060143.1569116-2-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
It has been discovered that this feature can globally block the RX port,
so it should be allowed for highly privileged users only.
Fixes: 03404e8ae652("IB/mlx5: Add support to dropless RQ")
Link: https://lore.kernel.org/r/20200322124906.1173790-1-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Now that we have direct and reliable detection of WC support by the
system, use is broadly. The only case we have to worry about is when the
WC autodetector cannot run.
For this fringe case generally assume that that WC is available, except in
the well defined case of no PAT support on x86 which is tested by calling
arch_can_pci_mmap_wc().
If WC is wrongly assumed to be available then it causes a small
performance hit on paths in userspace that are tuned to the assumption
that WC is available. There is no functional loss.
It is very unlikely that any platforms exist that lack WC and also care
about the micro optimization of WC in the fringe case where autodetection
does not work.
By removing the fairly bogus CONFIG tests this makes WC work broadly on
all arches and all platforms.
Link: https://lore.kernel.org/r/20200318100323.46659-1-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The kzalloc() function returns NULL, not error pointers.
Fixes: 30f2fe40c7 ("IB/mlx5: Introduce UAPIs to manage packet pacing")
Link: https://lore.kernel.org/r/20200320132641.GF95012@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Leon Romanovsky says:
====================
This series fixes various corner cases in the mlx5_ib MR cache
implementation, see specific commit messages for more information.
====================
Based on the mlx5-next branch at
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Due to dependencies
* branch 'mlx5_mr-cache':
RDMA/mlx5: Allow MRs to be created in the cache synchronously
RDMA/mlx5: Revise how the hysteresis scheme works for cache filling
RDMA/mlx5: Fix locking in MR cache work queue
RDMA/mlx5: Lock access to ent->available_mrs/limit when doing queue_work
RDMA/mlx5: Fix MR cache size and limit debugfs
RDMA/mlx5: Always remove MRs from the cache before destroying them
RDMA/mlx5: Simplify how the MR cache bucket is located
RDMA/mlx5: Rename the tracking variables for the MR cache
RDMA/mlx5: Replace spinlock protected write with atomic var
{IB,net}/mlx5: Move asynchronous mkey creation to mlx5_ib
{IB,net}/mlx5: Assign mkey variant in mlx5_ib only
{IB,net}/mlx5: Setup mkey variant before mr create command invocation
If the cache is completely out of MRs, and we are running in cache mode,
then directly, and synchronously, create an MR that is compatible with the
cache bucket using a sleeping mailbox command. This ensures that the
thread that is waiting for the MR absolutely will get one.
When a MR allocated in this way becomes freed then it is compatible with
the cache bucket and will be recycled back into it.
Deletes the very buggy ent->compl scheme to create a synchronous MR
allocation.
Link: https://lore.kernel.org/r/20200310082238.239865-13-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Currently if the work queue is running then it is in 'hysteresis' mode and
will fill until the cache reaches the high water mark. This implicit state
is very tricky and doesn't interact with pending very well.
Instead of self re-scheduling the work queue after the add_keys() has
started to create the new MR, have the queue scheduled from
reg_mr_callback() only after the requested MR has been added.
This avoids the bad design of an in-rush of queue'd work doing back to
back add_keys() until EAGAIN then sleeping. The add_keys() will be paced
one at a time as they complete, slowly filling up the cache.
Also, fix pending to be only manipulated under lock.
Link: https://lore.kernel.org/r/20200310082238.239865-12-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
All of the members of mlx5_cache_ent must be accessed while holding the
spinlock, add the missing spinlock in the __cache_work_func().
Using cache->stopped and flush_workqueue() is an inherently racy way to
shutdown self-scheduling work on a queue. Replace it with ent->disabled
under lock, and always check disabled before queuing any new work. Use
cancel_work_sync() to shutdown the queue.
Use READ_ONCE/WRITE_ONCE for dev->last_add to manage concurrency as
coherency is less important here.
Split fill_delay from the bitfield. C bitfield updates are not atomic and
this is just a mess. Use READ_ONCE/WRITE_ONCE, but this could also use
test_bit()/set_bit().
Link: https://lore.kernel.org/r/20200310082238.239865-11-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Accesses to these members needs to be locked. There is no reason not to
hold a spinlock while calling queue_work(), so move the tests into a
helper and always call it under lock.
The helper should be called when available_mrs is adjusted.
Link: https://lore.kernel.org/r/20200310082238.239865-10-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The size_write function is supposed to adjust the total_mr's to match the
user's request, but lacks locking and safety checking.
total_mrs can only be adjusted by at most available_mrs. mrs already
assigned to users cannot be revoked. Ensure that the user provides a
target value within the range of available_mrs and within the high/low
water mark.
limit_write has confusing and wrong sanity checking, and doesn't have the
ability to deallocate on limit reduction.
Since both functions use the same algorithm to adjust the available_mrs,
consolidate it into one function and write it correctly. Fix the locking
and by holding the spinlock for all accesses to ent->X.
Always fail if the user provides a malformed string.
Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Link: https://lore.kernel.org/r/20200310082238.239865-9-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The cache bucket tracks the total number of MRs that exists, both inside
and outside of the cache. Removing a MR from the cache (by setting
cache_ent to NULL) without updating total_mrs will cause the tracking to
leak and be inflated.
Further fix the rereg_mr path to always destroy the MR. reg_create will
always overwrite all the MR data in mlx5_ib_mr, so the MR must be
completely destroyed, in all cases, before this function can be
called. Detach the MR from the cache and unconditionally destroy it to
avoid leaking HW mkeys.
Fixes: afd1417404 ("IB/mlx5: Use direct mkey destroy command upon UMR unreg failure")
Fixes: 56e11d628c ("IB/mlx5: Added support for re-registration of MRs")
Link: https://lore.kernel.org/r/20200310082238.239865-8-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
There are many bad APIs here that are accepting a cache bucket index
instead of a bucket pointer. Many of the callers already have a bucket
pointer, so this results in a lot of confusing uses of order2idx().
Pass the struct mlx5_cache_ent into add_keys(), remove_keys(), and
alloc_cached_mr().
Once the MR is in the cache, store the cache bucket pointer directly in
the MR, replacing the 'bool allocated_from cache'.
In the end there is only one place that needs to form index from order,
alloc_mr_from_cache(). Increase the safety of this function by disallowing
it from accessing cache entries in the ODP special area.
Link: https://lore.kernel.org/r/20200310082238.239865-7-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
mkey variant calculation was spinlock protected to make it atomic, replace
that with one atomic variable.
Link: https://lore.kernel.org/r/20200310082238.239865-4-leon@kernel.org
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
As mlx5_ib is the only user of the mlx5_core_create_mkey_cb, move the
logic inside mlx5_ib and cleanup the code in mlx5_core.
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
mkey variant is not required for mlx5_core use, move the mkey variant
counter to mlx5_ib.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
On reg_mr_callback() mlx5_ib is recalculating the mkey variant which is
wrong and will lead to using a different key variant than the one
submitted to firmware on create mkey command invocation.
To fix this, we store the mkey variant before invoking the firmware
command and use it later on completion (reg_mr_callback).
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Until now the flex parser capability was used in ib_query_device() to
indicate tunnel_offloads_caps support for mpls_over_gre/mpls_over_udp.
Newer devices and firmware will have configurations with the flexparser
but without mpls support.
Testing for the flex parser capability was a mistake, the tunnel_stateless
capability was intended for detecting mpls and was introduced at the same
time as the flex parser capability.
Otherwise userspace will be incorrectly informed that a future device
supports MPLS when it does not.
Link: https://lore.kernel.org/r/20200305123841.196086-1-leon@kernel.org
Cc: <stable@vger.kernel.org> # 4.17
Fixes: e818e255a5 ("IB/mlx5: Expose MPLS related tunneling offloads")
Signed-off-by: Alex Vesker <valex@mellanox.com>
Reviewed-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Those macros are already defined in include/linux/mlx5/driver.h, so delete
their duplicate variants.
Link: https://lore.kernel.org/r/20200310075706.238592-1-leon@kernel.org
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@mellanox.com>
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Reviewed-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Merge tag 'v5.6-rc5' into rdma.git for-next
Required due to dependencies in following patches.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Yishai Hadas Says:
====================
Expose raw packet pacing APIs to be used by DEVX based applications. The
existing code was refactored to have a single flow with the new raw APIs.
====================
Based on the mlx5-next branch at
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Due to dependencies
* branch 'mlx5_packet_pacing':
IB/mlx5: Introduce UAPIs to manage packet pacing
net/mlx5: Expose raw packet pacing APIs
Introduce packet pacing uobject and its alloc and destroy
methods.
This uobject holds mlx5 packet pacing context according to the device
specification and enables managing packet pacing device entries that are
needed by DEVX applications.
Link: https://lore.kernel.org/r/20200219190518.200912-3-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Cited commit missed to include low level congestion control related
debugfs stage initialization. This resulted in missing debugfs entries
for cc_params of a RDMA device.
Add them back.
Fixes: b5ca15ad7e ("IB/mlx5: Add proper representors support")
Link: https://lore.kernel.org/r/20200227125407.99803-1-leon@kernel.org
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Add two debugfs parameters described below.
np_min_time_between_cnps - Minimum time between sending CNPs from the
port.
Unit = microseconds.
Default = 0 (no min wait time; generated
based on incoming ECN marked packets).
rp_max_rate - Maximum rate at which reaction point node can transmit.
Once this limit is reached, RP is no longer rate limited.
Unit = Mbits/sec
Default = 0 (full speed)
Link: https://lore.kernel.org/r/20200227125246.99472-1-leon@kernel.org
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Following race may occur because of the call_srcu and the placement of
the synchronize_srcu vs the xa_erase.
CPU0 CPU1
mlx5_ib_free_implicit_mr: destroy_unused_implicit_child_mr:
xa_erase(odp_mkeys)
synchronize_srcu()
xa_lock(implicit_children)
if (still in xarray)
atomic_inc()
call_srcu()
xa_unlock(implicit_children)
xa_erase(implicit_children):
xa_lock(implicit_children)
__xa_erase()
xa_unlock(implicit_children)
flush_workqueue()
[..]
free_implicit_child_mr_rcu:
(via call_srcu)
queue_work()
WARN_ON(atomic_read())
[..]
free_implicit_child_mr_work:
(via wq)
free_implicit_child_mr()
mlx5_mr_cache_invalidate()
mlx5_ib_update_xlt() <-- UMR QP fail
atomic_dec()
The wait_event() solves the race because it blocks until
free_implicit_child_mr_work() completes.
Fixes: 5256edcb98 ("RDMA/mlx5: Rework implicit ODP destroy")
Link: https://lore.kernel.org/r/20200227113918.94432-1-leon@kernel.org
Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Commit f164be8c03 ("IB/mlx5: Extend caps stage to handle VAR
capabilities") introduced a straight "/" division of the u64 variable
"bar_size".
This was fixed with commit 685eff5131 ("IB/mlx5: Use div64_u64 for
num_var_hw_entries calculation"). However, div64_u64() is redundant here
as mlx5_var_table::stride_size is of type u32. Make the actual code way
more optimized on 32-bit kernels using div_u64() and fix 80 chars
break-through by the way.
Fixes: 685eff5131 ("IB/mlx5: Use div64_u64 for num_var_hw_entries calculation")
Link: https://lore.kernel.org/r/20200217073629.8051-1-alobakin@dlink.ru
Signed-off-by: Alexander Lobakin <alobakin@dlink.ru>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Merge tag 'v5.6-rc4' into rdma.git for-next
Required due to dependencies in following patches.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The proper return code is "-EOPNOTSUPP" when the requested QP type is
not supported by the provider.
Link: https://lore.kernel.org/r/20200130082049.463-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Relaxed ordering is not supported in UMR so we are disabling UMR usage
when user passes relaxed ordering access flag.
Enable using UMR when user requested relaxed ordering but there are no
relaxed ordering capabilities.
This will prevent user from unnecessarily registering a new mkey.
Fixes: d6de0bb185 ("RDMA/mlx5: Set relaxed ordering when requested")
Link: https://lore.kernel.org/r/20200227113834.94233-1-leon@kernel.org
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Multi chain support requires the miss path to continue the processing
from the last chain id, and for that we need to save the chain
miss tag (a mapping for 32bit chain id) on reg_c0 which will
come in a next patch.
Currently reg_c0 is exclusively used to store the source port
metadata, giving it 32bit, it is created from 16bits of vcha_id,
and 16bits of vport number.
We will move this source port metadata to upper 16bits, and leave the
lower bits for the chain miss tag. We compress the reg_c0 source port
metadata to 16bits by taking 8 bits from vhca_id, and 8bits from
the vport number.
Since we compress the vport number to 8bits statically, and leave two
top ids for special PF/ECPF numbers, we will only support a max of 254
vports with this strategy.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
The cmd and index variables declared as u16 and the result is supposed to
be stored in u64. The C arithmetic rules doesn't promote "(index >> 8) <<
16" to be u64 and leaves the end result to be u16.
Fixes: 7be76bef32 ("IB/mlx5: Introduce VAR object and its alloc/destroy methods")
Link: https://lore.kernel.org/r/20200212072635.682689-10-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
As in the prior patch, the devx code is not fully cleaning up its
event_lists before finishing driver_destroy allowing a later read to
trigger user after free conditions.
Re-arrange things so that the event_list is always empty after destroy and
ensure it remains empty until the file is closed.
Fixes: f7c8416cce ("RDMA/core: Simplify destruction of FD uobjects")
Link: https://lore.kernel.org/r/20200212072635.682689-7-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
When binding a QP with a counter and the QP state is not RESET, return
failure if the rts2rts_qp_counters_set_id is not supported by the
device.
This is to prevent cases like manual bind for Connect-IB devices from
returning success when the feature is not supported.
Fixes: d14133dd41 ("IB/mlx5: Support set qp counter")
Link: https://lore.kernel.org/r/20200126171708.5167-1-leon@kernel.org
Signed-off-by: Mark Zhang <markz@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
- Driver updates and cleanup for qedr, bnxt_re, hns, siw, mlx5, mlx4, rxe,
i40iw
- Larger series doing cleanup and rework for hns and hfi1.
- Some general reworking of the CM code to make it a little more
understandable
- Unify the different code paths connected to the uverbs FD scheme
- New UAPI ioctls conversions for get context and get async fd
- Trace points for CQ and CM portions of the RDMA stack
- mlx5 driver support for virtio-net formatted rings as RDMA raw ethernet QPs
- verbs support for setting the PCI-E relaxed ordering bit on DMA traffic
connected to a MR
- A couple of bug fixes that came too late to make rc7
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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:
"A very quiet cycle with few notable changes. Mostly the usual list of
one or two patches to drivers changing something that isn't quite rc
worthy. The subsystem seems to be seeing a larger number of rework and
cleanup style patches right now, I feel that several vendors are
prepping their drivers for new silicon.
Summary:
- Driver updates and cleanup for qedr, bnxt_re, hns, siw, mlx5, mlx4,
rxe, i40iw
- Larger series doing cleanup and rework for hns and hfi1.
- Some general reworking of the CM code to make it a little more
understandable
- Unify the different code paths connected to the uverbs FD scheme
- New UAPI ioctls conversions for get context and get async fd
- Trace points for CQ and CM portions of the RDMA stack
- mlx5 driver support for virtio-net formatted rings as RDMA raw
ethernet QPs
- verbs support for setting the PCI-E relaxed ordering bit on DMA
traffic connected to a MR
- A couple of bug fixes that came too late to make rc7"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (108 commits)
RDMA/core: Make the entire API tree static
RDMA/efa: Mask access flags with the correct optional range
RDMA/cma: Fix unbalanced cm_id reference count during address resolve
RDMA/umem: Fix ib_umem_find_best_pgsz()
IB/mlx4: Fix leak in id_map_find_del
IB/opa_vnic: Spelling correction of 'erorr' to 'error'
IB/hfi1: Fix logical condition in msix_request_irq
RDMA/cm: Remove CM message structs
RDMA/cm: Use IBA functions for complex structure members
RDMA/cm: Use IBA functions for simple structure members
RDMA/cm: Use IBA functions for swapping get/set acessors
RDMA/cm: Use IBA functions for simple get/set acessors
RDMA/cm: Add SET/GET implementations to hide IBA wire format
RDMA/cm: Add accessors for CM_REQ transport_type
IB/mlx5: Return the administrative GUID if exists
RDMA/core: Ensure that rdma_user_mmap_entry_remove() is a fence
IB/mlx4: Fix memory leak in add_gid error flow
IB/mlx5: Expose RoCE accelerator counters
RDMA/mlx5: Set relaxed ordering when requested
RDMA/core: Add the core support field to METHOD_GET_CONTEXT
...
Compilation of mlx5 driver without CONFIG_INFINIBAND_USER_ACCESS generates
the following error.
on x86_64:
ld: drivers/infiniband/hw/mlx5/main.o: in function `mlx5_ib_handler_MLX5_IB_METHOD_VAR_OBJ_ALLOC':
main.c:(.text+0x186d): undefined reference to `ib_uverbs_get_ucontext_file'
ld: drivers/infiniband/hw/mlx5/main.o:(.rodata+0x2480): undefined reference to `uverbs_idr_class'
ld: drivers/infiniband/hw/mlx5/main.o:(.rodata+0x24d8): undefined reference to `uverbs_destroy_def_handler'
This is happening because some parts of the UAPI description are not
static. This is a hold over from earlier code that relied on struct
pointers to refer to object types, now object types are referenced by
number. Remove the unused globals and add statics to the remaining UAPI
description elements.
Remove the redundent #ifdefs around mlx5_ib_*defs and obsolete
mlx5_ib_get_devx_tree().
The compiler now trims alot more unused code, including the above
problematic definitions when !CONFIG_INFINIBAND_USER_ACCESS.
Fixes: 7be76bef32 ("IB/mlx5: Introduce VAR object and its alloc/destroy methods")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Maor Gottlieb
Aharon Landau
Leon Romanovsky
Jason Gunthorpe
Raed Salem
Erez Shitrit
Huy Nguyen
Yishai Hadas
Linus Torvalds
Saeed Mahameed
David S. Miller
Michael Guralnik
Dan Carpenter
Alex Vesker
Mark Zhang
Parav Pandit
Artemy Kovalyov
Alexander Lobakin
Kamal Heib
Paul Blakey