This has been a smaller cycle with many of the commits being smallish code
fixes and improvements across the drivers.
- Driver updates for bnxt_re, cxgb4, hfi1, hns, mlx5, nes, qedr, and rxe
- Memory window support in hns
- mlx5 user API 'flow mutate/steering' allows accessing the full packet
mangling and matching machinery from user space
- Support inter-working with verbs API calls in the 'devx' mlx5 user API, and
provide options to use devx with less privilege
- Modernize the use of syfs and the device interface to use attribute groups
and cdev properly for uverbs, and clean up some of the core code's device list
management
- More progress on net namespaces for RDMA devices
- Consolidate driver BAR mmapping support into core code helpers and rework
how RDMA holds poitners to mm_struct for get_user_pages cases
- First pass to use 'dev_name' instead of ib_device->name
- Device renaming for RDMA devices
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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 has been a smaller cycle with many of the commits being smallish
code fixes and improvements across the drivers.
- Driver updates for bnxt_re, cxgb4, hfi1, hns, mlx5, nes, qedr, and
rxe
- Memory window support in hns
- mlx5 user API 'flow mutate/steering' allows accessing the full
packet mangling and matching machinery from user space
- Support inter-working with verbs API calls in the 'devx' mlx5 user
API, and provide options to use devx with less privilege
- Modernize the use of syfs and the device interface to use attribute
groups and cdev properly for uverbs, and clean up some of the core
code's device list management
- More progress on net namespaces for RDMA devices
- Consolidate driver BAR mmapping support into core code helpers and
rework how RDMA holds poitners to mm_struct for get_user_pages
cases
- First pass to use 'dev_name' instead of ib_device->name
- Device renaming for RDMA devices"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (242 commits)
IB/mlx5: Add support for extended atomic operations
RDMA/core: Fix comment for hw stats init for port == 0
RDMA/core: Refactor ib_register_device() function
RDMA/core: Fix unwinding flow in case of error to register device
ib_srp: Remove WARN_ON in srp_terminate_io()
IB/mlx5: Allow scatter to CQE without global signaled WRs
IB/mlx5: Verify that driver supports user flags
IB/mlx5: Support scatter to CQE for DC transport type
RDMA/drivers: Use core provided API for registering device attributes
RDMA/core: Allow existing drivers to set one sysfs group per device
IB/rxe: Remove unnecessary enum values
RDMA/umad: Use kernel API to allocate umad indexes
RDMA/uverbs: Use kernel API to allocate uverbs indexes
RDMA/core: Increase total number of RDMA ports across all devices
IB/mlx4: Add port and TID to MAD debug print
IB/mlx4: Enable debug print of SMPs
RDMA/core: Rename ports_parent to ports_kobj
RDMA/core: Do not expose unsupported counters
IB/mlx4: Refer to the device kobject instead of ports_parent
RDMA/nldev: Allow IB device rename through RDMA netlink
...
Take struct mlx5_frag_buf out of mlx5_frag_buf_ctrl, as it is not
needed to manage and control the datapath of the fragmented buffers API.
struct mlx5_frag_buf contains control info to manage the allocation
and de-allocation of the fragmented buffer.
Its fields are not relevant for datapath, so here I take them out of the
struct mlx5_frag_buf_ctrl, except for the fragments array itself.
In addition, modified mlx5_fill_fbc to initialise the frags pointers
as well. This implies that the buffer must be allocated before the
function is called.
A set of type-specific *_get_byte_size() functions are replaced by
a generic one.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
If no-append flag is set, we will add a new FTE, instead of appending
the actions of the inserted rule when the same match already exists.
While here, move the has_flow_tag boolean indicator to be a flag too.
This patch doesn't change any functionality.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanmox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Currently, when a flow rule is created using the FS core layer, the caller
has to pass the entire flow counter object and not just the counter HW
handle (ID). This requires both the FS core and the caller to have
knowledge about the inner implementation of the FS layer flow counters
cache and limits the possible users.
Move to use the counter ID across the place when dealing with flows.
Doing this decoupling, now can we privatize the inner implementation
of the flow counters.
Signed-off-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
mlx5 updates for both net-next and rdma-next
* 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux: (21 commits)
net/mlx5: Expose DC scatter to CQE capability bit
net/mlx5: Update mlx5_ifc with DEVX UID bits
net/mlx5: Set uid as part of DCT commands
net/mlx5: Set uid as part of SRQ commands
net/mlx5: Set uid as part of SQ commands
net/mlx5: Set uid as part of RQ commands
net/mlx5: Set uid as part of QP commands
net/mlx5: Set uid as part of CQ commands
net/mlx5: Rename incorrect naming in IFC file
net/mlx5: Export packet reformat alloc/dealloc functions
net/mlx5: Pass a namespace for packet reformat ID allocation
net/mlx5: Expose new packet reformat capabilities
{net, RDMA}/mlx5: Rename encap to reformat packet
net/mlx5: Move header encap type to IFC header file
net/mlx5: Break encap/decap into two separated flow table creation flags
net/mlx5: Add support for more namespaces when allocating modify header
net/mlx5: Export modify header alloc/dealloc functions
net/mlx5: Add proper NIC TX steering flow tables support
net/mlx5: Cleanup flow namespace getter switch logic
net/mlx5: Add memic command opcode to command checker
...
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Extended atomic operations cmp&swp and fetch&add is a Mellanox
feature extending the standard atomic operation to use, varied
operand sizes, as apposed to normal atomic operation that use
an 8 byte operand only.
Extended atomics allows masking the results and arguments.
This patch configures QP to support extended atomic operation
with the maximum size possible, as exposed by HCA capabilities.
Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>
Reviewed-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Requester scatter to CQE is restricted to QPs configured to signal
all WRs.
This patch adds ability to enable scatter to cqe (force enable)
in the requester without sig_all, for users who do not want all WRs
signaled but rather just the ones whose data found in the CQE.
Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>
Reviewed-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Flags sent down from user might not be supported by
running driver.
This might lead to unwanted bugs.
To solve this, added macro to test for unsupported flags.
Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Scatter to CQE is a HW offload that saves PCI writes by scattering the
payload to the CQE.
This patch extends already existing functionality to support DC
transport type.
Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>
Reviewed-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Use rdma_set_device_sysfs_group() to register device attributes and
simplify the driver.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Schedule MR cache work only after bucket was initialized.
Cc: <stable@vger.kernel.org> # 4.10
Fixes: 49780d42df ("IB/mlx5: Expose MR cache for mlx5_ib")
Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
A user can provide a hint which will be attached to the packet and written
to the CQE on receive. This can be used as a way to offload operations
into the HW, for example parsing a packet which is a tunneled packet, and
if so, pass 0x1 as the hint. The software can use that hint to decapsulate
the packet and parse only the inner headers thus saving CPU cycles.
Signed-off-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Remove double error check from create user RQ error flow.
Fixes: 79b20a6c30 ("IB/mlx5: Add receive Work Queue verbs")
Signed-off-by: Gal Pressman <pressmangal@gmail.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Verify that the input DEVX object type matches the created object.
As the obj_id in the firmware is not globally unique the object type must
be considered upon checking for a valid object id.
Once both the type and the id match we know that the lock was taken on the
correct object by the uverbs layer.
Fixes: e662e14d80 ("IB/mlx5: Add DEVX support for modify and query commands")
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: Jason Gunthorpe <jgg@mellanox.com>
From git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git
This is required to resolve dependencies of the next series of RDMA
patches.
The code motion conflicts in drivers/infiniband/core/cache.c were
resolved.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
IPoIB netlink support and mlx5e pre-allocated netdevice initialization
IP link was broken due to the changes in IPoIB for the rdma_netdev
support after commit cd565b4b51
("IB/IPoIB: Support acceleration options callbacks").
This patchset fixes IPoIB pkey creation and removal using rtnetlink by
adding support in both IPoIB ULP layer and mlx5 layer:
From Jason and Denis:
1) Introduces changes in the RDMA netdev code in order to
allow allocation of the netdev to be done by the rtnl netdev code.
2) Reworks IPoIB initialization to use the two step rdma_netdev
creation.
From Feras and Saeed, mlx5e netdev layer refactoring to allow accepting
pre-allocated netdevs:
3) Adds support to initialize/cleanup netdevs that are not created
by mlx5 driver.
4) Change mlx5e netdevice layer to accept the pre-allocated netdevice
queue number.
5) Initialize mlx5e generic structures in one place to be used for all
netdevs types NIC/representors/IPoIB (both mlx5 allocated and
pre-allocted).
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Merge tag 'mlx5e-updates-2018-10-10' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5e-updates-2018-10-10
IPoIB netlink support and mlx5e pre-allocated netdevice initialization
IP link was broken due to the changes in IPoIB for the rdma_netdev
support after commit cd565b4b51
("IB/IPoIB: Support acceleration options callbacks").
This patchset fixes IPoIB pkey creation and removal using rtnetlink by
adding support in both IPoIB ULP layer and mlx5 layer:
From Jason and Denis:
1) Introduces changes in the RDMA netdev code in order to
allow allocation of the netdev to be done by the rtnl netdev code.
2) Reworks IPoIB initialization to use the two step rdma_netdev
creation.
From Feras and Saeed, mlx5e netdev layer refactoring to allow accepting
pre-allocated netdevs:
3) Adds support to initialize/cleanup netdevs that are not created
by mlx5 driver.
4) Change mlx5e netdevice layer to accept the pre-allocated netdevice
queue number.
5) Initialize mlx5e generic structures in one place to be used for all
netdevs types NIC/representors/IPoIB (both mlx5 allocated and
pre-allocted).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
netdev has several interfaces that expect to call alloc_netdev_mqs from
the core code, with the driver only providing the arguments. This is
incompatible with the rdma_netdev interface that returns the netdev
directly.
Thus re-organize the API used by ipoib so that the verbs core code calls
alloc_netdev_mqs for the driver. This is done by allowing the drivers to
provide the allocation parameters via a 'get_params' callback and then
initializing an allocated netdev as a second step.
Fixes: cd565b4b51 ("IB/IPoIB: Support acceleration options callbacks")
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Denis Drozdov <denisd@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
The ll parameter is not used in ib_modify_qp_is_ok(), so remove it.
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
IB has additional protections with SELinux that cannot be extended to the
DEVX domain. SELinux can restrict access to pkeys. The first version of
DEVX blocked IB entirely until this could be understood.
Since DEVX requires CAP_NET_RAW, it supersedes the SELinux restriction and
allows userspace to form arbitrary packets with arbitrary pkeys.
Thus we enable IB for DEVX when CAP_NET_RAW is given.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Enable DEVX white list commands without the need for CAP_NET_RAW.
DEVX uid must exist from the ucontext or the device so that the firmware
will mask unprivileged capabilities.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Manage device uid for DEVX white list commands. The created device uid
will be used on white list commands if the user didn't supply its own uid.
This will enable the firmware to filter out non privileged functionality
as of the recognition of the uid.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Expose RAW QP device handles to user space by extending the UHW part of
mlx5_ib_create_qp_resp.
This data is returned only when DEVX context is used where it may be
applicable.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Kernel convention is that a driver for a subsystem will print using
dev_* on the subsystem's struct device, or with dev_* on the physical
device. Drivers should rarely use a pr_* function.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The current code has two copies of the device name, ibdev->dev and
dev_name(&ibdev->dev), and they are setup at different times, which is
very confusing.
Set them both up at the same time and make dev_name() the lead name, which
is the proper use of the driver core APIs. To make it very clear that the
name is not valid until registration pass it in to the
ib_register_device() call rather than messing with ibdev->name directly.
Also the reorganization now checks that dev_name is unique even if it does
not contain a %.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Adit Ranadive <aditr@vmware.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Acked-by: Devesh Sharma <devesh.sharma@broadcom.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Upon DEVX object creation the object must be destroyed upon a follows
error flow.
Fixes: 7efce3691d ("IB/mlx5: Add obj create and destroy functionality")
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: Jason Gunthorpe <jgg@mellanox.com>
When profiles were introduced to MLX5 IB an unneeded version print when
creating an MLX5 IB device was added. Remove the print, we still have a
printk for driver version in mlx5_ib_add().
Fixes: 16c1975f10 ("IB/mlx5: Create profile infrastructure to add and remove stages")
Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set valid umem bit on DEVX commands that use umem.
This will enforce the umem usage by the firmware and not the 'pas' info.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of TD commands so that the firmware can
manage the TD object in a secured way.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of XRCD commands so that the firmware can manage the
XRCD object in a secured way.
That will enable using an XRCD that was created by verbs application
to be used by the DEVX flow in case the uid is equal.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of CQ creation so that the firmware can manage the
CQ object in a secured way.
The uid for the destroy and the modify commands is set by mlx5_core.
This will enable using a CQ that was created by verbs application to
be used by the DEVX flow in case the uid is equal.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of PD allocation, this uid is used for other mlx5
objects upon calling the firmware.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of RQT commands so that the firmware can manage the
RQT object in a secured way.
That will enable using an RQT that was created by verbs application
to be used by the DEVX flow in case the uid is equal.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of TIS commands so that the firmware can manage the
TIS object in a secured way.
That will enable using a TIS that was created by verbs application
to be used by the DEVX flow in case the uid is equal.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of TIR commands so that the firmware can manage the
TIR object in a secured way.
That will enable using a TIR that was created by verbs application to
be used by the DEVX flow in case the uid is equal.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of MCG commands so that the firmware can manage the
MCG object in a secured way.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of DCT create command so that the firmware can
manage the DCT object in a secured way.
The uid for the destroy and drain commands are set by mlx5_core.
That will enable using a DCT that was created by verbs application
to be used by the DEVX flow in case the uid is equal.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of SRQ create command so that the firmware can manage
the SRQ object in a secured way.
The uid for the destroy and modify commands are set by mlx5_core.
That will enable using a SRQ that was created by verbs application
to be used by the DEVX flow in case the uid is equal.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of SQ commands so that the firmware can manage the
SQ object in a secured way.
The uid for the destroy command is set by mlx5_core.
This will enable using an SQ that was created by verbs application
to be used by the DEVX flow in case the uid is equal.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of RQ commands so that the firmware can manage the
RQ object in a secured way.
The uid for the destroy command is set by mlx5_core.
This will enable using an RQ that was created by verbs application to
be used by the DEVX flow in case the uid is equal.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Set uid as part of QP creation so that the firmware can manage the
QP object in a secured way.
The uid for the destroy and the modify commands is set by mlx5_core.
This will enable using a QP that was created by verbs application to
be used by the DEVX flow in case the uid is equal.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Use uid as part of PD commands so that the firmware can manage the
PD object in a secured way.
For example when a QP is created its uid must match the CQ uid which it
uses.
Next patches in this series will use the uid from the PD, then will come
a patch to set the uid on the PD so that all objects will be properly
work in one change.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
For dependencies, branch based on 'mlx5-next' of
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git
mlx5 mcast/ucast loopback control enhancements from Leon Romanovsky:
====================
This is short series from Mark which extends handling of loopback
traffic. Originally mlx5 IB dynamically enabled/disabled both unicast
and multicast based on number of users. However RAW ethernet QPs need
more granular access.
====================
Fixed failed automerge in mlx5_ib.h (minor context conflict issue)
mlx5-vport-loopback branch:
RDMA/mlx5: Enable vport loopback when user context or QP mandate
RDMA/mlx5: Allow creating RAW ethernet QP with loopback support
RDMA/mlx5: Refactor transport domain bookkeeping logic
net/mlx5: Rename incorrect naming in IFC file
Signed-off-by: Doug Ledford <dledford@redhat.com>
A user can create a QP which can accept loopback traffic, but that's not
enough. We need to enable loopback on the vport as well. Currently vport
loopback is enabled only when more than 1 users are using the IB device,
update the logic to consider whatever a QP which supports loopback was
created, if so enable vport loopback even if there is only a single user.
Signed-off-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Expose two new flags:
MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_UC
MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_MC
Those flags can be used at creation time in order to allow a QP
to be able to receive loopback traffic (unicast and multicast).
We store the state in the QP to be used on the destroy path
to indicate with which flags the QP was created with.
Signed-off-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In preparation to enable loopback on a single user context move the logic
that enables/disables loopback to separate functions and group variables
under a single struct.
Signed-off-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Remove a trailing underscore from the multicast/unicast names.
Signed-off-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Since ODP had a single struct mmu_notifier located in the ucontext it
could only handle a single MM at a time, and this prevented it from using
the new owning_mm system.
With the prior rework it is now simple to let ODP track multiple MMs per
ucontext, finish the job so that the per_mm is allocated on a mm by mm
basis, and freed when the last umem is dropped from the ucontext.
As a side effect the new saner locking removes the lockdep splat about
nesting the umem_rwsem between mmu_notifier_unregister and
ib_umem_odp_release.
It also makes ODP work with multiple processes, across, fork, etc.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This is the first step to make ODP use the owning_mm that is now part of
struct ib_umem.
Each ODP umem is linked to a single per_mm structure, which in turn, is
linked to a single mm, via the embedded mmu_notifier. This first patch
introduces the structure and reworks eveything to use it.
This also needs to introduce tgid into the ib_ucontext_per_mm, as
get_user_pages_remote() requires the originating task for statistics
tracking.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This no longer has any use, we can use container_of to get to the
umem_odp, and a simple flag to indicate if this is an odp MR. Remove the
few remaining references to it.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Linus Torvalds