Commit Graph

767 Commits

Author SHA1 Message Date
Linus Torvalds
2a3c389a0f 5.3 Merge window RDMA pull request
A smaller cycle this time. Notably we see another new driver, 'Soft
 iWarp', and the deletion of an ancient unused driver for nes.
 
 - Revise and simplify the signature offload RDMA MR APIs
 
 - More progress on hoisting object allocation boiler plate code out of the
   drivers
 
 - Driver bug fixes and revisions for hns, hfi1, efa, cxgb4, qib, i40iw
 
 - Tree wide cleanups: struct_size, put_user_page, xarray, rst doc conversion
 
 - Removal of obsolete ib_ucm chardev and nes driver
 
 - netlink based discovery of chardevs and autoloading of the modules
   providing them
 
 - Move more of the rdamvt/hfi1 uapi to include/uapi/rdma
 
 - New driver 'siw' for software based iWarp running on top of netdev,
   much like rxe's software RoCE.
 
 - mlx5 feature to report events in their raw devx format to userspace
 
 - Expose per-object counters through rdma tool
 
 - Adaptive interrupt moderation for RDMA (DIM), sharing the DIM core
   from netdev
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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 smaller cycle this time. Notably we see another new driver, 'Soft
  iWarp', and the deletion of an ancient unused driver for nes.

   - Revise and simplify the signature offload RDMA MR APIs

   - More progress on hoisting object allocation boiler plate code out
     of the drivers

   - Driver bug fixes and revisions for hns, hfi1, efa, cxgb4, qib,
     i40iw

   - Tree wide cleanups: struct_size, put_user_page, xarray, rst doc
     conversion

   - Removal of obsolete ib_ucm chardev and nes driver

   - netlink based discovery of chardevs and autoloading of the modules
     providing them

   - Move more of the rdamvt/hfi1 uapi to include/uapi/rdma

   - New driver 'siw' for software based iWarp running on top of netdev,
     much like rxe's software RoCE.

   - mlx5 feature to report events in their raw devx format to userspace

   - Expose per-object counters through rdma tool

   - Adaptive interrupt moderation for RDMA (DIM), sharing the DIM core
     from netdev"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (194 commits)
  RMDA/siw: Require a 64 bit arch
  RDMA/siw: Mark expected switch fall-throughs
  RDMA/core: Fix -Wunused-const-variable warnings
  rdma/siw: Remove set but not used variable 's'
  rdma/siw: Add missing dependencies on LIBCRC32C and DMA_VIRT_OPS
  RDMA/siw: Add missing rtnl_lock around access to ifa
  rdma/siw: Use proper enumerated type in map_cqe_status
  RDMA/siw: Remove unnecessary kthread create/destroy printouts
  IB/rdmavt: Fix variable shadowing issue in rvt_create_cq
  RDMA/core: Fix race when resolving IP address
  RDMA/core: Make rdma_counter.h compile stand alone
  IB/core: Work on the caller socket net namespace in nldev_newlink()
  RDMA/rxe: Fill in wc byte_len with IB_WC_RECV_RDMA_WITH_IMM
  RDMA/mlx5: Set RDMA DIM to be enabled by default
  RDMA/nldev: Added configuration of RDMA dynamic interrupt moderation to netlink
  RDMA/core: Provide RDMA DIM support for ULPs
  linux/dim: Implement RDMA adaptive moderation (DIM)
  IB/mlx5: Report correctly tag matching rendezvous capability
  docs: infiniband: add it to the driver-api bookset
  IB/mlx5: Implement VHCA tunnel mechanism in DEVX
  ...
2019-07-15 20:38:15 -07:00
David S. Miller
114a5c3240 mlx5-fixes-2019-07-11
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Merge tag 'mlx5-fixes-2019-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
Mellanox, mlx5 fixes 2019-07-11

This series introduces some fixes to mlx5 driver.

Please pull and let me know if there is any problem.

For -stable v4.15
('net/mlx5e: IPoIB, Add error path in mlx5_rdma_setup_rn')

For -stable v5.1
('net/mlx5e: Fix port tunnel GRE entropy control')
('net/mlx5e: Rx, Fix checksum calculation for new hardware')
('net/mlx5e: Fix return value from timeout recover function')
('net/mlx5e: Fix error flow in tx reporter diagnose')

For -stable v5.2
('net/mlx5: E-Switch, Fix default encap mode')

Conflict note: This pull request will produce a small conflict when
merged with net-next.
In drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
Take the hunk from net and replace:
esw_offloads_steering_init(esw, vf_nvports, total_nvports);
with:
esw_offloads_steering_init(esw);
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-11 15:06:37 -07:00
Saeed Mahameed
db849faa9b net/mlx5e: Rx, Fix checksum calculation for new hardware
CQE checksum full mode in new HW, provides a full checksum of rx frame.
Covering bytes starting from eth protocol up to last byte in the received
frame (frame_size - ETH_HLEN), as expected by the stack.

Fixing up skb->csum by the driver is not required in such case. This fix
is to avoid wrong checksum calculation in drivers which already support
the new hardware with the new checksum mode.

Fixes: 85327a9c41 ("net/mlx5: Update the list of the PCI supported devices")
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-11 11:45:03 -07:00
Jason Gunthorpe
20893d9da7 Merge branch 'vhca-tunnel' into rdma.git for-next
Max Gurtovoy says:

====================
Those two patches introduce VHCA tunnel mechanism to DEVX interface
needed for Bluefield SOC. See extensive commit messages for more
information.
====================

Based on the mlx5-next branch from
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux for
dependencies

* branch 'vcha-tunnel':
  IB/mlx5: Implement VHCA tunnel mechanism in DEVX
  net/mlx5: Introduce VHCA tunnel device capability
2019-07-08 13:48:55 -03:00
Max Gurtovoy
1dd7382b1b net/mlx5: Introduce VHCA tunnel device capability
When using the device emulation feature (introduced in Bluefield-1 SOC),
a privileged function (the device emulation manager) will be able to
create a channel to execute commands on behalf of the emulated function.

This channel will be a general object of type VHCA_TUNNEL that will have
a unique ID for each emulated function. This ID will be passed in each
cmd that will be issued by the emulation SW in a well known offset in
the command header.

This channel is needed since the emulated function doesn't have a normal
command interface to the HCA HW, but some basic configuration for that
function is needed (e.g. initialize and enable the HCA). For that matter,
a specific command-set was defined and only those commands will be issued
by the HCA.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-07 10:25:17 +03:00
Tariq Toukan
e2869fb206 net/mlx5: Kconfig, Better organize compilation flags
Always contain all acceleration functions declarations in
'accel' files, independent to the flags setting.
For this, introduce new flags CONFIG_FPGA_{IPSEC/TLS} and use stubs
where needed.

This obsoletes the need for stubs in 'fpga' files. Remove them.

Also use the new flags in Makefile, to decide whether to compile
TLS-specific or IPSEC-specific objects, or not.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05 16:29:19 -07:00
Mark Zhang
d14133dd41 IB/mlx5: Support set qp counter
Support bind a qp with counter. If counter is null then bind the qp to the
default counter. Different QP state has different operation:

- RESET: Set the counter field so that it will take effective during
  RST2INIT change;
- RTS: Issue an RTS2RTS change to update the QP counter;
- Other: Set the counter field and mark the counter_pending flag, when QP
  is moved to RTS state and this flag is set, then issue an RTS2RTS
  modification to update the counter.

Signed-off-by: Mark Zhang <markz@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-07-05 10:22:55 -03:00
Jason Gunthorpe
5600a410ea Merge mlx5-next into rdma for-next
From git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

Required for dependencies in the next patches.

* mlx5-next:
  net/mlx5: Add rts2rts_qp_counters_set_id field in hca cap
  net/mlx5: Properly name the generic WQE control field
  net/mlx5: Introduce TLS TX offload hardware bits and structures
  net/mlx5: Refactor mlx5_esw_query_functions for modularity
  net/mlx5: E-Switch prepare functions change handler to be modular
  net/mlx5: Introduce and use mlx5_eswitch_get_total_vports()
2019-07-05 10:16:19 -03:00
Saeed Mahameed
e08a976a16 Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Misc updates from mlx5-next branch:

1) Add the required HW definitions and structures for upcoming TLS
   support.
2) Add support for MCQI and MCQS hardware registers for fw version query.
3) Added hardware bits and structures definitions for sub-functions
4) Small code cleanup and improvement for PF pci driver.
5) Bluefield (ECPF) updates and refactoring for better E-Switch
   management on ECPF embedded CPU NIC:
   5.1) Consolidate querying eswitch number of VFs
   5.2) Register event handler at the correct E-Switch init stage
   5.3) Setup PF's inline mode and vlan pop when the ECPF is the
        E-Swtich manager ( the host PF is basically a VF ).
   5.4) Handle Vport UC address changes in switchdev mode.

6) Cleanup the rep and netdev reference when unloading IB rep.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

i# All conflicts fixed but you are still merging.
2019-07-04 16:42:59 -04:00
Mark Zhang
f8efee08dd net/mlx5: Add rts2rts_qp_counters_set_id field in hca cap
Add rts2rts_qp_counters_set_id field in hca cap so that RTS2RTS
qp modification can be used to change the counter of a QP.

Signed-off-by: Mark Zhang <markz@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-04 21:36:33 +03:00
Tariq Toukan
0718edf528 net/mlx5: Properly name the generic WQE control field
A generic WQE control field is used for different purposes
in different cases.
Use union to allow using the proper name in each case.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-03 12:50:42 -07:00
Eran Ben Elisha
a12ff35e0f net/mlx5: Introduce TLS TX offload hardware bits and structures
Add TLS offload related IFC structs, layouts and enumerations.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-03 12:50:42 -07:00
Parav Pandit
2752b82316 net/mlx5: Introduce and use mlx5_eswitch_get_total_vports()
Instead MLX5_TOTAL_VPORTS, use mlx5_eswitch_get_total_vports().
mlx5_eswitch_get_total_vports() in subsequent patch accounts for SF
vports as well.
Expanding MLX5_TOTAL_VPORTS macro would require exposing SF internals to
more generic vport.h header file. Such exposure is not desired.
Hence a mlx5_eswitch_get_total_vports() is introduced.

Given that mlx5_eswitch_get_total_vports() API wants to work on const
mlx5_core_dev*, change its helper functions also to accept const *dev.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-03 12:50:42 -07:00
Jason Gunthorpe
69ea0582f3 Merge mlx5-next into rdma for-next
From git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

Required for dependencies in the next patches.

Resolved the conflicts:
 - esw_destroy_offloads_acl_tables() use the newer mlx5_esw_for_all_vports()
   version
 - esw_offloads_steering_init() drop the cap test
 - esw_offloads_init() drop the extra function arguments

* branch 'mlx5-next': (39 commits)
  net/mlx5: Expose device definitions for object events
  net/mlx5: Report EQE data upon CQ completion
  net/mlx5: Report a CQ error event only when a handler was set
  net/mlx5: mlx5_core_create_cq() enhancements
  net/mlx5: Expose the API to register for ANY event
  net/mlx5: Use event mask based on device capabilities
  net/mlx5: Fix mlx5_core_destroy_cq() error flow
  net/mlx5: E-Switch, Handle UC address change in switchdev mode
  net/mlx5: E-Switch, Consider host PF for inline mode and vlan pop
  net/mlx5: E-Switch, Use iterator for vlan and min-inline setups
  net/mlx5: E-Switch, Reg/unreg function changed event at correct stage
  net/mlx5: E-Switch, Consolidate eswitch function number of VFs
  net/mlx5: E-Switch, Refactor eswitch SR-IOV interface
  net/mlx5: Handle host PF vport mac/guid for ECPF
  net/mlx5: E-Switch, Use correct flags when configuring vlan
  net/mlx5: Reduce dependency on enabled_vfs counter and num_vfs
  net/mlx5: Don't handle VF func change if host PF is disabled
  net/mlx5: Limit scope of mlx5_get_next_phys_dev() to PCI PF devices
  net/mlx5: Move pci status reg access mutex to mlx5_pci_init
  net/mlx5: Rename mlx5_pci_dev_type to mlx5_coredev_type
  ...

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-07-03 16:50:26 -03:00
Yishai Hadas
e4075c4428 net/mlx5: Expose device definitions for object events
Expose an extra device definitions for objects events.

It includes: object_type values for legacy objects and generic data
header for any other object.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-03 21:02:45 +03:00
Yishai Hadas
4e0e2ea188 net/mlx5: Report EQE data upon CQ completion
Report EQE data upon CQ completion to let upper layers use this data.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-03 21:00:20 +03:00
Yishai Hadas
38164b7719 net/mlx5: mlx5_core_create_cq() enhancements
Enhance mlx5_core_create_cq() to get the command out buffer from the
callers to let them use the output.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-03 20:59:32 +03:00
Yishai Hadas
c0670781f5 net/mlx5: Expose the API to register for ANY event
Expose the API to register for ANY event, mlx5_ib will be able to use
this functionality for its needs.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-03 20:56:29 +03:00
Yishai Hadas
b9a7ba5562 net/mlx5: Use event mask based on device capabilities
Use the reported device capabilities for the supported user events (i.e.
affiliated and un-affiliated) to set the EQ mask.

As the event mask can be up to 256 defined by 4 entries of u64 change
the applicable code to work accordingly.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-07-03 20:55:45 +03:00
Bodong Wang
411ec9e0b4 net/mlx5: E-Switch, Consider host PF for inline mode and vlan pop
When ECPF is the eswitch manager, host PF is treated like other VFs.
Driver should do the same for inline mode and vlan pop.

Add new iterators to include host PF if ECPF is the eswitch manager.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:31 -07:00
Bodong Wang
f6455de0b0 net/mlx5: E-Switch, Refactor eswitch SR-IOV interface
Devlink eswitch mode is not necessarily related to SR-IOV, e.g, ECPF
can be at offload mode when SR-IOV is not enabled.

Rename the interface and eswitch mode names to decouple from SR-IOV,
and cleanup eswitch messages accordingly.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Bodong Wang
e1d974d03e net/mlx5: Handle host PF vport mac/guid for ECPF
When ECPF is eswitch manager, it has the privilege to query and
configure the mac and node guid of host PF.

While vport number of host PF is 0, the vport command should be
issued with other_vport set in this case as the cmd is issued by
ECPF vport(0xfffe).

Add a specific function to query own vport mac. Low level functions
are used by vport manager to query/modify any vport mac and node guid.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Parav Pandit
d886aba677 net/mlx5: Reduce dependency on enabled_vfs counter and num_vfs
While enabling SR-IOV, PCI core already checks that if SR-IOV is already
enabled, it returns failure error code.
Hence, remove such duplicate check from mlx5_core driver.

While at it, make mlx5_device_disable_sriov() to perform cleanup of VFs in
reverse order of mlx5_device_enable_sriov().

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Bodong Wang
5ccf2770e8 net/mlx5: Don't handle VF func change if host PF is disabled
When ECPF eswitch manager is at offloads mode, it monitors functions
changed event from host PF side and acts according to the number of
VFs enabled/disabled.

As ECPF and host PF work in two independent hosts, it's possible that
host PF OS reboots but ECPF system is still kept on and continues
monitoring events from host PF. When kernel from host PF side is
booting, PCI iov driver does sriov_init and compute_max_vf_buses by
iterating over all valid num of VFs. This triggers FLR and generates
functions changed events, even though host PF HCA is not enabled at
this time. However, ECPF is not aware of this information, and still
handles these events as usual. ECPF system will see massive number of
reps are created, but destroyed immediately once creation finished.

To eliminate this noise, a bit is added to host parameter context to
indicate host PF is disabled. ECPF will not handle the VF changed
event if this bit is set.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Huy Nguyen
386e75af99 net/mlx5: Rename mlx5_pci_dev_type to mlx5_coredev_type
Rename mlx5_pci_dev_type to mlx5_coredev_type to distinguish different mlx5
device types.

mlx5_coredev_type represents mlx5_core_dev instance type. Hence keep
mlx5_coredev_type in mlx5_core_dev structure.

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Bodong Wang
2f69e591e4 {IB, net}/mlx5: E-Switch, Use index of rep for vport to IB port mapping
In the single IB device mode, the mapping between vport number and
rep relies on a counter. However for dynamic vport allocation, it is
desired to keep consistent map of eswitch vport and IB port.

Hence, simplify code to remove the free running counter and instead
use the available vport index during load/unload sequence from the
eswitch.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Suggested-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Shay Agroskin
a82e0b5bda net/mlx5: Added MCQI and MCQS registers' description to ifc
Given a fw component index, the MCQI register allows us to query
this component's information (e.g. its version and capabilities).

Given a fw component index, the MCQS register allows us to query the
status of a fw component, including its type and state
(e.g. PRESET/IN_USE).
It can be used to find the index of a component of a specific type, by
sequentially increasing the component index, and querying each time the
type of the returned component.
If max component index is reached, 'last_index_flag' is set by the HCA.

These registers' description was added to query the running and pending
fw version of the HCA.

Signed-off-by: Shay Agroskin <shayag@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Parav Pandit
1759d322f4 net/mlx5: Add hardware definitions for sub functions
Update mlx5 device interface data structures for:
1. New command definitions for allocating, deallocating SF
2. Query SF partition
3. Eswitch SF fields
4. HCA CAP SF fields
5. Extend Eswitch functions command for SF

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-01 16:40:30 -07:00
Jason Gunthorpe
371bb62158 Linux 5.2-rc6
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Merge tag 'v5.2-rc6' into rdma.git for-next

For dependencies in next patches.

Resolve conflicts:
- Use uverbs_get_cleared_udata() with new cq allocation flow
- Continue to delete nes despite SPDX conflict
- Resolve list appends in mlx5_command_str()
- Use u16 for vport_rule stuff
- Resolve list appends in struct ib_client

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-28 21:18:23 -03:00
Arnd Bergmann
5233794b17 net/mlx5e: reduce stack usage in mlx5_eswitch_termtbl_create
Putting an empty 'mlx5_flow_spec' structure on the stack is a bit
wasteful and causes a warning on 32-bit architectures when building
with clang -fsanitize-coverage:

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c: In function 'mlx5_eswitch_termtbl_create':
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c:90:1: error: the frame size of 1032 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]

Since the structure is never written to, we can statically allocate
it to avoid the stack usage. To be on the safe side, mark all
subsequent function arguments that we pass it into as 'const'
as well.

Fixes: 10caabdaad ("net/mlx5e: Use termination table for VLAN push actions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-28 16:03:59 -07:00
Saeed Mahameed
4f5d1beadc Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Misc updates from mlx5-next branch:

1) E-Switch vport metadata support for source vport matching
2) Convert mkey_table to XArray
3) Shared IRQs and to use single IRQ for all async EQs

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-28 16:03:54 -07:00
Jianbo Liu
8d212ff057 net/mlx5e: Specifying known origin of packets matching the flow
In vport metadata matching, source port number is replaced by metadata.
While FW has no idea about what it is in the metadata, a syndrome will
happen. Specify a known origin to avoid the syndrome.
However, there is no functional change because ANY_VPORT (0) is filled
in flow_source, the same default value as before, as a pre-step towards
metadata matching for fast path.
There are two other values can be filled in flow_source. When setting
0x1, packet matching this rule is from uplink, while 0x2 is for packet
from other local vports.

Signed-off-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-26 12:01:28 -07:00
Jianbo Liu
7445cfb116 net/mlx5: E-Switch, Tag packet with vport number in VF vports and uplink ingress ACLs
When a dual-port VHCA sends a RoCE packet on its non-native port, and the
packet arrives to its affiliated vport FDB, a mismatch might occur on the
rules that match the packet source vport as it is not represented by single
VHCA only in this case. So we change to match on metadata instead of source
vport.
To do that, a rule is created in all vports and uplink ingress ACLs, to
save the source vport number and vhca id in the packet's metadata in order
to match on it later.
The metadata register used is the first of the 32-bit type C registers. It
can be used for matching and header modify operations. The higher 16 bits
of this register are for vhca id, and the lower 16 ones is for vport
number.
This change is not for dual-port RoCE only. If HW and FW allow, the vport
metadata matching is enabled by default.

Signed-off-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-26 12:01:28 -07:00
Jianbo Liu
bb0ee7dcc4 net/mlx5: Add flow context for flow tag
Refactor the flow data structures, add new flow_context and move
flow_tag into it, as flow_tag doesn't belong to the rule action.

Signed-off-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-26 12:01:28 -07:00
Jianbo Liu
65c0f2c166 net/mlx5: Introduce vport metadata matching bits and enum constants
When a dual-port VHCA sends a RoCE packet on its non-native port, and
the packet arrives to its affiliated vport FDB, a mismatch might occur
on the rules that match the packet source vport. So we replace the
match on source port with the match on metadata that was configured in
ingress ACL, and that metadata will be passed further also to the NIC
RX table of the eswitch manager.

Introduce vport metadata matching bits and enum constants as a pre-step
towards metadata matching.
    o metadata type C registers in the misc parameters 2 fields.
    o esw_uplink_ingress_acl bit in esw cap. If it set, the device supports
      ingress ACL for the uplink vport.
    o fdb_to_vport_reg_* bits in flow table cap and esw vport context, to
      support propagating the metadata to the nic rx through the loopback
      path.
    o flow_source in flow context, to indicate the known origin of packets.
    o enum constants, to support the above bits.

Signed-off-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-26 12:01:28 -07:00
Matthew Wilcox
792c4e9d0b net/mlx5: Convert mkey_table to XArray
The lock protecting the data structure does not need to be an rwlock.  The
only read access to the lock is in an error path, and if that's limiting
your scalability, you have bigger performance problems.

Eliminate mlx5_mkey_table in favour of using the xarray directly.
reg_mr_callback must use GFP_ATOMIC for allocating XArray nodes as it may
be called in interrupt context.

This also fixes a minor bug where SRCU locking was being used on the radix
tree read side, when RCU was needed too.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-24 16:44:40 -07:00
Max Gurtovoy
38ca87c6f1 RDMA/mlx5: Introduce and implement new IB_WR_REG_MR_INTEGRITY work request
This new WR will be used to perform PI (protection information) handover
using the new API. Using the new API, the user will post a single WR that
will internally perform all the needed actions to complete PI operation.
This new WR will use a memory region that was allocated as
IB_MR_TYPE_INTEGRITY and was mapped using ib_map_mr_sg_pi to perform the
registration. In the old API, in order to perform a signature handover
operation, each ULP should perform the following:
1. Map and register the data buffers.
2. Map and register the protection buffers.
3. Post a special reg WR to configure the signature handover operation
   layout.
4. Invalidate the signature memory key.
5. Invalidate protection buffers memory key.
6. Invalidate data buffers memory key.

In the new API, the mapping of both data and protection buffers is
performed using a single call to ib_map_mr_sg_pi function. Also the
registration of the buffers and the configuration of the signature
operation layout is done by a single new work request called
IB_WR_REG_MR_INTEGRITY.
This patch implements this operation for mlx5 devices that are capable to
offload data integrity generation/validation while performing the actual
buffer transfer.
This patch will not remove the old signature API that is used by the iSER
initiator and target drivers. This will be done in the future.

In the internal implementation, for each IB_WR_REG_MR_INTEGRITY work
request, we are using a single UMR operation to register both data and
protection buffers using KLM's.
Afterwards, another UMR operation will describe the strided block format.
These will be followed by 2 SET_PSV operations to set the memory/wire
domains initial signature parameters passed by the user.
In the end of the whole transaction, only the signature memory key
(the one that exposed for the RDMA operation) will be invalidated.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-24 11:49:27 -03:00
Maor Gottlieb
82b11f0719 net/mlx5: Expose eswitch encap mode
Add API to get the current Eswitch encap mode.
It will be used in downstream patches to check if
flow table can be created with encap support or not.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
2019-06-16 15:41:43 +03:00
Moshe Shemesh
b3bd076f75 net/mlx5: Report devlink health on FW fatal issues
Report devlink health on FW fatal issues via fw_fatal_reporter. The
driver recover flow for FW fatal error is now being handled by the
devlink health.

Having the recovery controlled by devlink health, the user has the
ability to cancel the auto-recovery for debug session and run it
manually.

Call mlx5_enter_error_state() before calling devlink_health_report() to
ensure entering device error state even if auto-recovery is off.

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-13 13:23:19 -07:00
Moshe Shemesh
96c82cdfe7 net/mlx5: Add fw fatal devlink_health_reporter
Create mlx5_devlink_health_reporter for fw fatal reporter.
The fw fatal reporter is added in addition to the fw reporter and
implements the recover callback.
The point of having two reporters for FW issues, is that we
don't want to run FW recover on any issue, but only fatal ones.

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-13 13:23:19 -07:00
Moshe Shemesh
d1bf0e2cc4 net/mlx5: Report devlink health on FW issues
Use devlink_health_report() to report any symptom of FW issue as FW
counter miss or new health syndrome.
The FW issues detected in mlx5 during poll_health which is called in
timer atomic context and so health work queue is used to schedule the
reports.

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-13 13:23:19 -07:00
Moshe Shemesh
1e34f3efd4 net/mlx5: Create FW devlink_health_reporter
Create mlx5_devlink_health_reporter for FW reporter. The FW reporter
implements devlink_health_reporter diagnose callback.

The fw reporter diagnose command can be triggered any time by the user
to check current fw status.
In healthy status, it will return clear syndrome. Otherwise it will
return the syndrome and description of the error type.

Command example and output on healthy status:
$ devlink health diagnose pci/0000:82:00.0 reporter fw
Syndrome: 0

Command example and output on non healthy status:
$ devlink health diagnose pci/0000:82:00.0 reporter fw
Syndrome: 8 Description: unrecoverable hardware error

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-13 13:23:18 -07:00
Feras Daoud
3e5b72ac2f net/mlx5: Issue SW reset on FW assert
If a FW assert is considered fatal, indicated by a new bit in the health
buffer, reset the FW. After the reset go through the normal recovery
flow. Only one PF needs to issue the reset, so an attempt is made to
prevent the 2nd function from also issuing the reset.
It's not an error if that happens, it just slows recovery.

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-13 13:23:18 -07:00
Feras Daoud
63cbc552ee net/mlx5: Handle SW reset of FW in error flow
New mlx5 adapters allow the driver to reset the FW in the event of an
error, this action called "SW Reset". When an SW reset is issued on any
PF all PFs enter reset state which is a recoverable condition. The
existing recovery flow was designed to allow the recovery of a VF after
a PF driver reload. This patch adds the sw reset to the NIC states
as a preparation for sw reset handling.

When a software reset is issued the following occurs:
1. The NIC interface mode is set to 7 while the reset is in progress.
2. Once the reset completes the NIC interface mode is set to 1.

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-13 13:23:17 -07:00
Alex Vesker
8b9d8baae1 net/mlx5: Add Crdump support
Crdump allows the driver to retrieve a dump of the FW PCI crspace.
This is useful in case of catastrophic issues which may require FW
reset. The crspace dump can be used for later debug.

Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-13 13:23:17 -07:00
Alex Vesker
b25bbc2f24 net/mlx5: Add Vendor Specific Capability access gateway
The Vendor Specific Capability (VSC) is used to activate a gateway
interfacing with the device. The gateway is used to read or write
device configurations, which are organized in different domains (spaces).
A configuration access may result in multiple actions, reads, writes.

Example usages are accessing the Crspace domain to read the crspace or
locking a device semaphore using the Semaphore domain.

The configuration access use pci_cfg_access to prevent parallel access to
the VSC space by the driver and userspace calls.

Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-13 13:23:17 -07:00
Yuval Avnery
1f8a7bee27 net/mlx5: Add EQ enable/disable API
Previously, EQ joined the chain notifier on creation.
This forced the caller to be ready to handle events before creating
the EQ through eq_create_generic interface.

To help the caller control when the created EQ will be attached to the
IRQ, add enable/disable API.

Signed-off-by: Yuval Avnery <yuvalav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-13 10:59:49 -07:00
Ariel Levkovich
81bfa20603 net/mlx5: Use a single IRQ for all async EQs
The patch modifies the IRQ allocation so that all async EQs are
assigned to the same IRQ resulting in more available IRQs for
completion EQs.

The changes are using the support for IRQ sharing and EQ polling budget
that was introduced in previous patches so when the shared interrupt is
triggered, the kernel will serially call the handler of each of the
sharing EQs with a certain budget of EQEs to poll in order to prevent
starvation.

Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-13 10:59:49 -07:00
Yuval Avnery
561aa15ad6 net/mlx5: Separate IRQ data from EQ table data
IRQ table should only exist for mlx5_core_dev for PF and VF only.
EQ table of mediated devices should hold a pointer to the IRQ table
of the parent PCI device.

Signed-off-by: Yuval Avnery <yuvalav@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-13 10:59:49 -07:00
Yuval Avnery
24163189da net/mlx5: Separate IRQ request/free from EQ life cycle
Instead of requesting IRQ with eq creation, IRQs will be requested
before EQ table creation.
Instead of freeing the IRQs after EQ destroy, free IRQs after eq
table destroy.

Signed-off-by: Yuval Avnery <yuvalav@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-06-13 10:59:49 -07:00