RDMA/mlx5: Move all WR logic from qp.c to separate file

Split qp.c by removing all WR logic to separate file.

Link: https://lore.kernel.org/r/20200506065513.4668-4-leon@kernel.org

RDMA/mlx5: Move all WR logic from qp.c to separate file

Split qp.c by removing all WR logic to separate file.

Link: https://lore.kernel.org/r/20200506065513.4668-4-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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net/mlx5: Move QP logic to mlx5_ib

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

net/mlx5: Move QP logic to mlx5_ib

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>

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RDMA/mlx5: Alphabetically sort build artifacts

Sort .o objects in makefile to make addition of new object
less cumbersome.

Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Si

RDMA/mlx5: Alphabetically sort build artifacts

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>

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IB/mlx5: Introduce UAPIs to manage packet pacing

Introduce packet pacing uobject and its alloc and destroy
methods.

This uobject holds mlx5 packet pacing context according to th

IB/mlx5: Introduce UAPIs to manage packet pacing

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>

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RDMA/mlx5: Return ODP type per MR

Provide an ODP explicit/implicit type as part of 'rdma -dd resource show
mr' dump.

For example:

$ rdma -dd resource show mr
dev ml

RDMA/mlx5: Return ODP type per MR

Provide an ODP explicit/implicit type as part of 'rdma -dd resource show
mr' dump.

For example:

$ rdma -dd resource show mr
dev mlx5_0 mrn 1 rkey 0xa99a lkey 0xa99a mrlen 50000000
pdn 9 pid 7372 comm ibv_rc_pingpong drv_odp explicit

For non-ODP MRs, we won't print "drv_odp ..." at all.

Link: https://lore.kernel.org/r/20191016062308.11886-4-leon@kernel.org
Signed-off-by: Erez Alfasi <ereza@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>

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treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These file

treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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net/mlx5: Move SRQ functions to RDMA part

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

net/mlx5: Move SRQ functions to RDMA part

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: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

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IB/mlx5: Introduce flow steering matcher uapi object

Introduce flow steering matcher object and its create and destroy methods.

This matcher object holds some mlx5 specific driver p

IB/mlx5: Introduce flow steering matcher uapi object

Introduce flow steering matcher object and its create and destroy methods.

This matcher object holds some mlx5 specific driver properties that
matches the underlay device specification when an mlx5 flow steering group
is created.

It will be used in downstream patches to be part of mlx5 specific create
flow method.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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IB/mlx5: Introduce DEVX

Introduce DEVX to enable direct device commands in downstream patches
from this series.

In that mode of work the firmware manages the isolation between

IB/mlx5: Introduce DEVX

Introduce DEVX to enable direct device commands in downstream patches
from this series.

In that mode of work the firmware manages the isolation between
processes' resources and as such a DEVX user id is created and assigned
to the given user context upon allocation request.

A capability check is done to make sure that this feature is really
supported by the firmware prior to creating the DEVX user id.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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IB/mlx5: Add basic regiser/unregister representors code

Create the basic infrastructure of registering and unregistering
IB representors. The load/unload callbacks are left empty and

IB/mlx5: Add basic regiser/unregister representors code

Create the basic infrastructure of registering and unregistering
IB representors. The load/unload callbacks are left empty and
proper implementation will be introduced in following patches.

Signed-off-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

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IB/mlx5: Add debug control parameters for congestion control

This patch adds debug control parameters for congestion control which
can be read or written through debugfs. They are for re

IB/mlx5: Add debug control parameters for congestion control

This patch adds debug control parameters for congestion control which
can be read or written through debugfs. They are for reaction point and
notification point nodes.

These control parameters are as below:
+------------------------------+-----------------------------------------+
| Name | Description |
|------------------------------+-----------------------------------------|
|rp_clamp_tgt_rate | When set target rate is updated to |
| | current rate |
|------------------------------+-----------------------------------------|
|rp_clamp_tgt_rate_ati | When set update target rate based on |
| | timer as well |
|------------------------------+-----------------------------------------|
|rp_time_reset | time between rate increase if no |
| | CNP is received unit in usec |
|------------------------------+-----------------------------------------|
|rp_byte_reset | Number of bytes between rate inease if |
| | no CNP is received |
|------------------------------+-----------------------------------------|
|rp_threshold | Threshold for reaction point rate |
| | control |
|------------------------------+-----------------------------------------|
|rp_ai_rate | Rate for target rate, unit in Mbps |
|------------------------------+-----------------------------------------|
|rp_hai_rate | Rate for hyper increase state |
| | unit in Mbps |
|------------------------------+-----------------------------------------|
|rp_min_dec_fac | Minimum factor by which the current |
| | transmit rate can be changed when |
| | processing a CNP, unit is percerntage |
|------------------------------+-----------------------------------------|
|rp_min_rate | Minimum value for rate limit, |
| | unit in Mbps |
|------------------------------+-----------------------------------------|
|rp_rate_to_set_on_first_cnp | Rate that is set when first CNP is |
| | received, unit is Mbps |
|------------------------------+-----------------------------------------|
|rp_dce_tcp_g | Used to calculate alpha |
|------------------------------+-----------------------------------------|
|rp_dce_tcp_rtt | Time between updates of alpha value, |
| | unit is usec |
|------------------------------+-----------------------------------------|
|rp_rate_reduce_monitor_period | Minimum time between consecutive rate |
| | reductions |
|------------------------------+-----------------------------------------|
|rp_initial_alpha_value | Initial value of alpha |
|------------------------------+-----------------------------------------|
|rp_gd | When CNP is received, flow rate is |
| | reduced based on gd, rp_gd is given as |
| | log2(rp_gd) |
|------------------------------+-----------------------------------------|
|np_cnp_dscp | dscp code point for generated cnp |
|------------------------------+-----------------------------------------|
|np_cnp_prio_mode | 802.1p priority for generated cnp |
|------------------------------+-----------------------------------------|
|np_cnp_prio | cnp priority mode |
+------------------------------+-----------------------------------------+

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>

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IB/mlx5: Add null_mkey access

Add mlx5_cmd_null_mkey() function to access null_mkey information
from firmware.

Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-

IB/mlx5: Add null_mkey access

Add mlx5_cmd_null_mkey() function to access null_mkey information
from firmware.

Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>

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IB/mlx5: Implement callbacks for manipulating VFs

Implement the IB defined callbacks used to manipulate the policy for the
link state, set GUIDs or get statistics information. This funct

IB/mlx5: Implement callbacks for manipulating VFs

Implement the IB defined callbacks used to manipulate the policy for the
link state, set GUIDs or get statistics information. This functionality
is added into a new file that will be used to add any SRIOV related
functionality to the mlx5 IB layer.

The following callbacks have been added:

mlx5_ib_get_vf_config
mlx5_ib_set_vf_link_state
mlx5_ib_get_vf_stats
mlx5_ib_set_vf_guid

In addition, publish whether this device is based on a virtual function.

In mlx5 supported devices, virtual functions are implemented as vHCAs.
vHCAs have their own QP number space so it is possible that two vHCAs
will use a QP with the same number at the same time.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

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IB/mlx5: Add GSI QP wrapper

mlx5 creates special GSI QPs that has limited ability to control the P_Key
of transmitted packets. The sent P_Key is taken from the QP object,
similarly t

IB/mlx5: Add GSI QP wrapper

mlx5 creates special GSI QPs that has limited ability to control the P_Key
of transmitted packets. The sent P_Key is taken from the QP object,
similarly to what happens with regular UD QPs.

Create a software wrapper around GSI QPs that with the following patches
will be able to emulate the functionality of a GSI QP including control of
the P_Key per work request.

Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

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IB/mlx5: Implement the ODP capability query verb

The patch adds infrastructure to query ODP capabilities in the mlx5
driver. The code will read the capabilities from the device, and

IB/mlx5: Implement the ODP capability query verb

The patch adds infrastructure to query ODP capabilities in the mlx5
driver. The code will read the capabilities from the device, and
enable only those capabilities that both the driver and the device
supports. At this point ODP is not supported, so no capability is
copied from the device, but the patch exposes the global ODP device
capability bit.

Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

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mlx5: Add driver for Mellanox Connect-IB adapters

The driver is comprised of two kernel modules: mlx5_ib and mlx5_core.
This partitioning resembles what we have for mlx4, except that mlx

mlx5: Add driver for Mellanox Connect-IB adapters

The driver is comprised of two kernel modules: mlx5_ib and mlx5_core.
This partitioning resembles what we have for mlx4, except that mlx5_ib
is the pci device driver and not mlx5_core.

mlx5_core is essentially a library that provides general functionality
that is intended to be used by other Mellanox devices that will be
introduced in the future. mlx5_ib has a similar role as any hardware
device under drivers/infiniband/hw.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>

[ Merge in coccinelle fixes from Fengguang Wu <fengguang.wu@intel.com>.
- Roland ]

Signed-off-by: Roland Dreier <roland@purestorage.com>

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