Commit Graph

197 Commits

Author SHA1 Message Date
Jakub Kicinski 0d5bfebf74 Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Saeed Mahameed says:

====================
updates from mlx5-next 2022-09-24

Updates form mlx5-next including[1]:

1) HW definitions and support for NPPS clock settings.

2) various cleanups

3) Enable hash mode by default for all NICs

4) page tracker and advanced virtualization HW definitions for vfio

[1] https://lore.kernel.org/netdev/20220907233636.388475-1-saeed@kernel.org/

* 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
  net/mlx5: Remove from FPGA IFC file not-needed definitions
  net/mlx5: Remove unused structs
  net/mlx5: Remove unused functions
  net/mlx5: detect and enable bypass port select flow table
  net/mlx5: Lag, enable hash mode by default for all NICs
  net/mlx5: Lag, set active ports if support bypass port select flow table
  RDMA/mlx5: Don't set tx affinity when lag is in hash mode
  net/mlx5: add IFC bits for bypassing port select flow table
  net/mlx5: Add support for NPPS with real time mode
  net/mlx5: Expose NPPS related registers
  net/mlx5: Query ADV_VIRTUALIZATION capabilities
  net/mlx5: Introduce ifc bits for page tracker
  RDMA/mlx5: Move function mlx5_core_query_ib_ppcnt() to mlx5_ib
====================

Link: https://lore.kernel.org/all/20220927201906.234015-1-saeed@kernel.org/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-28 19:20:49 -07:00
Gal Pressman 66af4fe371 net/mlx5: Remove unused functions
Remove functions which are no longer used in the driver:
  mlx5e_ipsec_is_tx_flow
  mlx5_health_flush
  get_cqe_enhanced_num_mini_cqes
  get_cqe_l3_hdr_type
  mlx5_health_flush
  mlx5_fs_is_ipsec_flow
  _mlx5_fs_is_outer_ipproto_flow
  mlx5_fs_is_outer_tcp_flow
  mlx5_fs_is_outer_udp_flow
  mlx5_fs_is_vxlan_flow
  mlx5_fs_is_outer_ipsec_flow

Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-09-27 12:50:27 -07:00
Emeel Hakim 4411a6c0ab net/mlx5e: Support MACsec offload extended packet number (EPN)
MACsec EPN splits the packet number (PN) into two 32-bits fields,
epn_lsb (32 least significant bits (LSBs) of PN) and epn_msb (32
most significant bits (MSBs) of PN).
Epn_msb bits are managed by SW and for that HW is required to send
an object change event of type EPN event notifying the SW to update
the epn_msb in addition, once epn_msb is updated SW update HW with
the new epn_msb value for HW to perform replay protection.
To prevent HW from stopping while handling the event, SW manages
another bit for HW called epn_overlap, HW uses the latter to get
an indication regarding how to read the epn_msb value correctly
while still receiving packets.
Add epn event handling that updates the epn_overlap and epn_msb for
every 2^31 packets according to the following logic:
if epn_lsb crosses 2^31 (half sequence number wraparound) upon HW
relevant event, SW updates the esn_overlap value to OLD (value = 1).
When the epn_lsb crosses 2^32 (full sequence number wraparound)
upon HW relevant event, SW updates the esn_overlap to NEW
(value = 0) and increment the esn_msb.
When using MACsec EPN a salt and short secure channel id (ssci)
needs to be provided by the user, when offloading EPN need to pass
this salt and ssci to the HW to be used in the initial vector (IV)
calculations.

Reviewed-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Emeel Hakim <ehakim@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-22 18:01:33 -07:00
Lior Nahmanson 8385c51ff5 net/mlx5: Introduce MACsec Connect-X offload hardware bits and structures
Add MACsec offload related IFC structs, layouts and enumerations.

Signed-off-by: Lior Nahmanson <liorna@nvidia.com>
Reviewed-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-07 14:02:08 +01:00
Yishai Hadas 939838632b net/mlx5: Query ADV_VIRTUALIZATION capabilities
Query ADV_VIRTUALIZATION capabilities which provide information for
advanced virtualization related features.

Current capabilities refer to the page tracker object which is used for
tracking the pages that are dirtied by the device.

Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/20220905105852.26398-3-yishaih@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2022-09-07 11:57:27 +03:00
Ofer Levi cdcdce948d net/mlx5: Add bits and fields to support enhanced CQE compression
Expose ifc bits and add needed structure fields and methods to
support enhanced CQE compression feature.
The enhanced CQE compression feature improves cpu utiliziation with
better packet latency from nic to host.

Signed-off-by: Ofer Levi <oferle@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-06-13 14:59:06 -07:00
Shay Drory d107ba1f7c net/mlx5: Remove not used MLX5_CAP_BITS_RW_MASK
Remove not used MLX5_CAP_BITS_RW_MASK.
While at it, remove CAP_MASK, MLX5_CAP_OFF_CMDIF_CSUM
and MLX5_DEV_CAP_FLAG_*, since MLX5_CAP_BITS_RW_MASK
was their only user.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-06-13 14:59:06 -07:00
Jianbo Liu f5d23ee137 net/mlx5: Add IFC bits and enums for flow meter
Add/extend structure layouts and defines for flow meter.

Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Ariel Levkovich <lariel@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-06-13 14:59:05 -07:00
Muhammad Sammar 0f2a6c3b92 net/mlx5: Add misc5 flow table match parameters
Add support for misc5 match parameter as per HW spec, this will allow
matching on tunnel_header fields.

Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31 00:17:23 -08:00
Saeed Mahameed 573bce9e67 Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux into net-next
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-10-27 21:33:28 -07:00
Khalid Manaa f97d5c2a45 net/mlx5e: Add handle SHAMPO cqe support
This patch adds the new CQE SHAMPO fields:
- flush: indicates that we must close the current session and pass the SKB
         to the network stack.

- match: indicates that the current packet matches the oppened session,
         the packet will be merge into the current SKB.

- header_size: the size of the packet headers that written into the headers
               buffer.

- header_entry_index: the entry index in the headers buffer.

- data_offset: packets data offset in the WQE.

Also new cqe handler is added to handle SHAMPO packets:
- The new handler uses CQE SHAMPO fields to build the SKB.
  CQE's Flush and match fields are not used in this patch, packets are not
  merged in this patch.

Signed-off-by: Khalid Manaa <khalidm@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-10-26 19:30:40 -07:00
Ben Ben-Ishay d7b896acbd net/mlx5e: Add support to klm_umr_wqe
This commit adds the needed definitions for using the klm_umr_wqe.
UMR stands for user-mode memory registration, is a mechanism to alter
address translation properties of MKEY by posting WorkQueueElement
aka WQE on send queue.
MKEY stands for memory key, MKEY are used to describe a region in memory that
can be later used by HW.
KLM stands for {Key, Length, MemVa}, KLM_MKEY is indirect MKEY that enables
to map multiple memory spaces with different sizes in unified MKEY.
klm_umr_wqe is a UMR that use to update a KLM_MKEY.
SHAMPO feature uses KLM_MKEY for memory registration of his header buffer.

Signed-off-by: Ben Ben-Ishay <benishay@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-10-26 19:30:39 -07:00
Ben Ben-Ishay 7025329d20 net/mlx5: Add SHAMPO caps, HW bits and enumerations
This commit adds SHAMPO bit to hca_cap and SHAMPO capabilities structure,
SHAMPO related HW spec hardware fields and enumerations.
SHAMPO stands for: split headers and merge payload offload.
SHAMPO new fields:
WQ:
 - headers_mkey: mkey that represents the headers buffer, where the packets
   headers will be written by the HW.

 - shampo_enable: flag to verify if the WQ supports SHAMPO feature.

 - log_reservation_size: the log of the reservation size where the data of
   the packet will be written by the HW.

 - log_max_num_of_packets_per_reservation: log of the maximum number of
   packets that can be written to the same reservation.

 - log_headers_entry_size: log of the header entry size of the headers buffer.

 - log_headers_buffer_entry_num: log of the entries number of the headers buffer.

RQ:
 - shampo_no_match_alignment_granularity: the HW alignment granularity
   in case the received packet doesn't match the current session.

 - shampo_match_criteria_type: the type of match criteria.

 - reservation_timeout: the maximum time that the HW will hold the
   reservation.

mlx5_ifc_shampo_cap_bits, the capabilities of the SHAMPO feature:
 - shampo_log_max_reservation_size: the maximum allowed value of the field
   WQ.log_reservation_size.

 - log_reservation_size: the minimum allowed value of the field
   WQ.log_reservation_size.

 - shampo_min_mss_size: the minimum payload size of packet that can open
   a new session or be merged to a session.

 - shampo_max_log_headers_entry_size: the maximum allowed value of the field
   WQ.log_headers_entry_size

Signed-off-by: Ben Ben-Ishay <benishay@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-10-26 19:30:39 -07:00
Aya Levin cb464ba53c net/mlx5: Extend health buffer dump
Enhance health buffer to include:
 - assert_var5: expose the 6'th assert variable.
 - time: error's time-stamp in seconds (epoch time).
 - rfr: Recovery Flow Requiered. When set, indicates that the error
        cannot be recovered without flow involving reset.
 - severity: error's severity value, ranging from emergency to debug.
Expose them in the health buffer dump (dmesg and devlink fw reporter).

Health buffer in dmesg:
mlx5_core 0000:08:00.0: print_health_info:425:(pid 912): Health issue observed, firmware internal error, severity(3) ERROR:
mlx5_core 0000:08:00.0: print_health_info:429:(pid 912): assert_var[0] 0x08040700
mlx5_core 0000:08:00.0: print_health_info:429:(pid 912): assert_var[1] 0x00000000
mlx5_core 0000:08:00.0: print_health_info:429:(pid 912): assert_var[2] 0x00000000
mlx5_core 0000:08:00.0: print_health_info:429:(pid 912): assert_var[3] 0x00000000
mlx5_core 0000:08:00.0: print_health_info:429:(pid 912): assert_var[4] 0x00000000
mlx5_core 0000:08:00.0: print_health_info:429:(pid 912): assert_var[5] 0x00000000
mlx5_core 0000:08:00.0: print_health_info:432:(pid 912): assert_exit_ptr 0x00aaf800
mlx5_core 0000:08:00.0: print_health_info:434:(pid 912): assert_callra 0x00aaf70c
mlx5_core 0000:08:00.0: print_health_info:436:(pid 912): fw_ver 16.32.492
mlx5_core 0000:08:00.0: print_health_info:437:(pid 912): time 1634819758
mlx5_core 0000:08:00.0: print_health_info:438:(pid 912): hw_id 0x0000020d
mlx5_core 0000:08:00.0: print_health_info:439:(pid 912): rfr 0
mlx5_core 0000:08:00.0: print_health_info:440:(pid 912): severity 3 (ERROR)
mlx5_core 0000:08:00.0: print_health_info:441:(pid 912): irisc_index 9
mlx5_core 0000:08:00.0: print_health_info:442:(pid 912): synd 0x1: firmware internal error
mlx5_core 0000:08:00.0: print_health_info:444:(pid 912): ext_synd 0x802b
mlx5_core 0000:08:00.0: print_health_info:445:(pid 912): raw fw_ver 0x102001ec

Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-10-25 13:51:19 -07:00
Maor Gottlieb 425a563acb net/mlx5: Introduce port selection namespace
Add new port selection flow steering namespace. Flow steering rules in
this namespaceare are used to determine the physical port for egress
packets.

Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-10-18 20:18:07 -07:00
Amir Tzin 4b2c5fa9c9 net/mlx5: Add layout to support default timeouts register
Add needed structures and defines for DTOR (default timeouts register).
This will be used to get timeouts values from FW instead of hard coded
values in the driver code thus enabling support for slower devices which
need longer timeouts.

Signed-off-by: Amir Tzin <amirtz@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-10-15 17:37:42 -07:00
Aharon Landau b8dfed636f net/mlx5: Add priorities for counters in RDMA namespaces
Add additional flow steering priorities in the RDMA namespace.
This allows adding flow counters to count filtered RDMA traffic and then
continue processing in the regular RDMA steering flow.

Signed-off-by: Aharon Landau <aharonl@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
2021-10-09 12:03:42 +03:00
Parav Pandit 48f02eef7f net/mlx5: Allocate individual capability
Currently mlx5_core_dev contains array of capabilities. It contains 19
valid capabilities of the device, 2 reserved entries and 12 holes.
Due to this for 14 unused entries, mlx5_core_dev allocates 14 * 8K = 112K
bytes of memory which is never used. Due to this mlx5_core_dev structure
size is 270Kbytes odd. This allocation further aligns to next power of 2
to 512Kbytes.

By skipping non-existent entries,
(a) 112Kbyte is saved,
(b) mlx5_core_dev reduces to 8KB with alignment
(c) 350KB saved in alignment

In future individual capability allocation can be used to skip its
allocation when such capability is disabled at the device level. This
patch prepares mlx5_core_dev to hold capability using a pointer instead
of inline array.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-08-11 11:14:33 -07:00
Parav Pandit 5958a6fad6 net/mlx5: Reorganize current and maximal capabilities to be per-type
In the current code, the current and maximal capabilities are
maintained in separate arrays which are both per type. In order to
allow the creation of such a basic structure as a dynamically
allocated array, we move curr and max fields to a unified
structure so that specific capabilities can be allocated as one unit.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-08-11 11:14:32 -07:00
Cai Huoqing 39c538d644 net/mlx5: Fix typo in comments
Fix typo:
*vectores  ==> vectors
*realeased  ==> released
*erros  ==> errors
*namepsace  ==> namespace
*trafic  ==> traffic
*proccessed  ==> processed
*retore  ==> restore
*Currenlty  ==> Currently
*crated  ==> created
*chane  ==> change
*cannnot  ==> cannot
*usuallly  ==> usually
*failes  ==> fails
*importent  ==> important
*reenabled  ==> re-enabled
*alocation  ==> allocation
*recived  ==> received
*tanslation  ==> translation

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-08-11 11:14:30 -07:00
Yevgeny Kliteynik 67133eaa93 net/mlx5: mlx5_ifc support for header insert/remove
Add support for HCA caps 2 that contains capabilities for the new
insert/remove header actions.

Added the required definitions for supporting the new reformat type:
added packet reformat parameters, reformat anchors and definitions
to allow copy/set into the inserted EMD (Embedded MetaData) tag.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-06-09 18:36:06 -07:00
Tariq Toukan 6980ffa0c5 net/mlx5e: RX, Add checks for calculated Striding RQ attributes
Striding RQ attributes below are mutually dependent. An unaware
change to one might take the others out of the valid range derived
by the HW caps:
- The MPWQE size in bytes
- The number of strides in a MPWQE
- The stride size

Add checks to verify they are valid and comply to the HW spec
and SW assumptions/requirements.
This is not a fix, no particular issue exists today.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-04-19 20:17:09 -07:00
Maor Dickman a3222a2da0 net/mlx5e: Allow to match on ICMP parameters
Support matching on ICMPv4/6 type and code parameters using misc3
section of match parameters.

Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-03-12 15:29:34 -08:00
David S. Miller 44c3203975 Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Saeed Mahameed says:
====================
pull-request: mlx5-next 2021-02-16

The patches in this pr are already submitted and reviewed through the
netdev and rdma mailing lists.

The series includes mlx5 HW bits and definitions for mlx5 real time clock
translation and handling in the mlx5 driver clock module to enable and
support such mode [1]

[1] https://patchwork.kernel.org/project/netdevbpf/patch/20210212223042.449816-7-saeed@kernel.org/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-16 14:53:30 -08:00
Eran Ben Elisha ae02d41551 net/mlx5: Add register layout to support real-time time-stamp
Add needed structure layouts and defines for MTUTC (Management UTC)
register. MTUTC will be used for cyc2time HW translation.

In addition, add cyc2time modify capability bit and init segment HCA
real time address.

Finally, add capability bits indicating which time-stamping format is
supported per SQ and RQ. Add ts_format in the queue's context layout to
allow configuration.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-02-16 14:04:54 -08:00
Aya Levin 5543e989fe net/mlx5e: Add trap entity to ETH driver
Introduce mlx5e_trap which includes a dedicated RQ and NAPI for trapped
packets. Trap-RQ processes packets that were destined to be dropped,
but for debug and visibility sake these packets are trapped and reported
to devlink.
Trap-RQ connects between the HW and the driver and is not a part of a
channel. Open mlx5e_create_rq() and mlx5_core_destroy_rq() as API and
add dedicate RQ handlers which report to devlink of trapped packets.

Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 19:53:53 -08:00
Aya Levin 241dc15939 net/mlx5: Notify on trap action by blocking event
In order to allow mlx5 core driver to trigger synchronous operations to
its consumers, add a blocking events handler. Add wrappers to
blocking_notifier_[call_chain/chain_register/chain_unregister]. Add trap
callback for action set and notify about this change. Following patches
in the set add a listener for this event.

Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27 19:53:51 -08:00
Parav Pandit 349125ba23 net/mlx5: Update the hardware interface definition for vhca state
Update the hardware interface definitions to query and modify vhca
state, related EQE and event code.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2020-11-26 18:43:48 -08:00
Muhammad Sammar 7da3ad6c26 net/mlx5: Add misc4 to mlx5_ifc_fte_match_param_bits
Add misc4 match params to enable matching on prog_sample_fields.

Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2020-11-26 18:43:47 -08:00
Moshe Shemesh 2d69356752 net/mlx5: Add support for fw live patch event
Firmware live patch event notifies the driver that the firmware was just
updated using live patch. In such case the driver should not reload or
re-initiate entities, part to updating the firmware version and
re-initiate the firmware tracer which can be updated by live patch with
new strings database to help debugging an issue.

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-09 12:06:53 -07:00
Ofer Levi b7cf0806e8 net/mlx5e: Add CQE compression support for multi-strides packets
Add CQE compression support for completions of packets that span
multiple strides in a Striding RQ, per the HW capability.
In our memory model, we use small strides (256B as of today) for the
non-linear SKB mode. This feature allows CQE compression to work also
for multiple strides packets. In this case decompressing the mini CQE
array will use stride index provided by HW as part of the mini CQE.
Before this feature, compression was possible only for single-strided
packets, i.e. for packets of size up to 256 bytes when in non-linear
mode, and the index was maintained by SW.
This feature is supported for ConnectX-5 and above.

Feature performance test:
This was whitebox-tested, we reduced the PCI speed from 125Gb/s to
62.5Gb/s to overload pci and manipulated mlx5 driver to drop incoming
packets before building the SKB to achieve low cpu utilization.
Outcome is low cpu utilization and bottleneck on pci only.
Test setup:
Server: Intel(R) Xeon(R) Silver 4108 CPU @ 1.80GHz server, 32 cores
NIC: ConnectX-6 DX.
Sender side generates 300 byte packets at full pci bandwidth.
Receiver side configuration:
Single channel, one cpu processing with one ring allocated. Cpu utilization
is ~20% while pci bandwidth is fully utilized.
For the generated traffic and interface MTU of 4500B (to activate the
non-linear SKB mode), packet rate improvement is about 19% from ~17.6Mpps
to ~21Mpps.
Without this feature, counters show no CQE compression blocks for
this setup, while with the feature, counters show ~20.7Mpps compressed CQEs
in ~500K compression blocks.

Signed-off-by: Ofer Levi <oferle@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2020-09-15 11:59:53 -07:00
Meir Lichtinger 896ec97353 RDMA/mlx5: Set mkey relaxed ordering by UMR with ConnectX-7
Up to ConnectX-7 UMR is not used when user passes relaxed ordering access
flag. ConnectX-7 supports setting relaxed ordering read/write mkey
attribute by UMR, indicated by new HCA capabilities.

With ConnectX-7 driver uses UMR when user set relaxed ordering access
flag, in contrast to previous silicon models. Specifically it includes
setting relvant flags of mkey context mask in UMR control segment, and
relaxed ordering write and read flags in UMR mkey context segment.

Link: https://lore.kernel.org/r/20200716105248.1423452-4-leon@kernel.org
Signed-off-by: Meir Lichtinger <meirl@mellanox.com>
Reviewed-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-27 11:19:00 -03:00
Meir Lichtinger 2224635938 RDMA/mlx5: Use MLX5_SET macro instead of local structure
Use generic mlx5 structure defined in mlx5_ifc.h to represent ConnectX
device data structures instead of using structure defined specifically for
mlx5_ib module.

Link: https://lore.kernel.org/r/20200716105248.1423452-3-leon@kernel.org
Signed-off-by: Meir Lichtinger <meirl@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-27 11:19:00 -03:00
Eli Cohen 8a06a79b0a net/mlx5: Add interface changes required for VDPA
Rename mlx5_ifc_device_virtio_emulation_cap_bits to
mlx5_ifc_virtio_emulation_cap_bits to match names produced by the
tools producing these auto generated files.

In addition missing capabilities that will be required by VDPA
implementation.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-15 22:21:29 -07:00
Tariq Toukan 2d1b69ed65 net/mlx5: kTLS, Improve TLS params layout structures
Add explicit WQE segment structures for the TLS static and progress
params.
According to the HW spec, TISN is not part of the progress params context,
take it out of it.
Rename the control segment tisn field as it could hold either a TIS or
a TIR number.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-27 13:50:46 -07:00
Tariq Toukan ee5cdf7a5e net/mlx5: Introduce TLS RX offload hardware bits
Add TLS RX offload related IFC hardware fields and enumerations.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-28 12:45:18 -07:00
Moshe Shemesh 3df0107784 net/mlx5: Add structure and defines for pci sync for fw update event
Add needed structure layouts and defines for pci sync for fw update
event. The downstream patches will include event handlers for this event
type.

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-28 12:45:18 -07:00
Raed Salem 244faedfd4 net/mlx5: Refactor imm_inval_pkey field in cqe struct
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>
2020-04-28 12:45:15 -07:00
Raed Salem 2b58f6d9df net/mlx5: Introduce IPsec Connect-X offload hardware bits and structures
Add IPsec offload related IFC structs, layouts and enumerations.

Signed-off-by: Raed Salem <raeds@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-28 12:44:45 -07:00
Michael Guralnik 24670b1a31 net/mlx5: Add support for RDMA TX steering
Add new RDMA TX flow steering namespace. Flow steering rules in
this namespace are used to filter transmitted RDMA traffic.

Link: https://lore.kernel.org/r/20200324061425.1570190-2-leon@kernel.org
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@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>
2020-03-27 13:24:48 -03:00
Eran Ben Elisha 932ef15511 net/mlx5: Read MCAM register groups 1 and 2
On load, Driver caches MCAM (Management Capabilities Mask Register)
registers. in addition to the only MCAM register group (0) the driver
already reads, here we add support for reading groups 1 and 2.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-01-16 14:11:19 -08:00
Yishai Hadas ca1992c62c net/mlx5: Expose vDPA emulation device capabilities
Expose vDPA emulation device capabilities from the core layer.
It includes reading the capabilities from the firmware and exposing
helper functions to access the data.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Shahaf Shuler <shahafs@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2020-01-10 20:25:32 +02:00
Linus Torvalds 018c6837f3 RDMA subsystem updates for 5.4
This cycle mainly saw lots of bug fixes and clean up code across the core
 code and several drivers, few new functional changes were made.
 
 - Many cleanup and bug fixes for hns
 
 - Various small bug fixes and cleanups in hfi1, mlx5, usnic, qed,
   bnxt_re, efa
 
 - Share the query_port code between all the iWarp drivers
 
 - General rework and cleanup of the ODP MR umem code to fit better with
   the mmu notifier get/put scheme
 
 - Support rdma netlink in non init_net name spaces
 
 - mlx5 support for XRC devx and DC ODP
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull RDMA subsystem updates from Jason Gunthorpe:
 "This cycle mainly saw lots of bug fixes and clean up code across the
  core code and several drivers, few new functional changes were made.

   - Many cleanup and bug fixes for hns

   - Various small bug fixes and cleanups in hfi1, mlx5, usnic, qed,
     bnxt_re, efa

   - Share the query_port code between all the iWarp drivers

   - General rework and cleanup of the ODP MR umem code to fit better
     with the mmu notifier get/put scheme

   - Support rdma netlink in non init_net name spaces

   - mlx5 support for XRC devx and DC ODP"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (99 commits)
  RDMA: Fix double-free in srq creation error flow
  RDMA/efa: Fix incorrect error print
  IB/mlx5: Free mpi in mp_slave mode
  IB/mlx5: Use the original address for the page during free_pages
  RDMA/bnxt_re: Fix spelling mistake "missin_resp" -> "missing_resp"
  RDMA/hns: Package operations of rq inline buffer into separate functions
  RDMA/hns: Optimize cmd init and mode selection for hip08
  IB/hfi1: Define variables as unsigned long to fix KASAN warning
  IB/{rdmavt, hfi1, qib}: Add a counter for credit waits
  IB/hfi1: Add traces for TID RDMA READ
  RDMA/siw: Relax from kmap_atomic() use in TX path
  IB/iser: Support up to 16MB data transfer in a single command
  RDMA/siw: Fix page address mapping in TX path
  RDMA: Fix goto target to release the allocated memory
  RDMA/usnic: Avoid overly large buffers on stack
  RDMA/odp: Add missing cast for 32 bit
  RDMA/hns: Use devm_platform_ioremap_resource() to simplify code
  Documentation/infiniband: update name of some functions
  RDMA/cma: Fix false error message
  RDMA/hns: Fix wrong assignment of qp_access_flags
  ...
2019-09-21 10:26:24 -07:00
Jason Gunthorpe 75c66515e4 Merge tag 'v5.3-rc8' into rdma.git for-next
To resolve dependencies in following patches

mlx5_ib.h conflict resolved by keeing both hunks

Linux 5.3-rc8

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-09-13 16:59:51 -03:00
Aya Levin 948d3f90e9 net/mlx5: Expose HW capability bits for port buffer per priority congestion counters
Map capability bit indicating that HCA supports port buffer's congestion
counters. Also map registers with the corresponding counters.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-09-05 14:44:43 -07:00
Saeed Mahameed a06ebb8d95 Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Merge mlx5-next patches needed for upcoming mlx5 software steering.

1) Alex adds HW bits and definitions required for SW steering
2) Ariel moves device memory management to mlx5_core (From mlx5_ib)
3) Maor, Cleanups and fixups for eswitch mode and RoCE
4) Mark, Set only stag for match untagged packets

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-09-02 00:16:05 -07:00
Alex Vesker 97b5484ed6 net/mlx5: Add HW bits and definitions required for SW steering
Add the required Software Steering hardware definitions and
bits to mlx5_ifc.

Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Yevgeny Klitenik <kliten@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-09-01 23:44:41 -07:00
Yishai Hadas 972d7560ee IB/mlx5: Add legacy events to DEVX list
Add two events that were defined in the device specification but were
not exposed in the driver list.

Post this patch those events can be read over the DEVX events interface
once be reported by the firmware.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Edward Srouji <edwards@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20190808084358.29517-4-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-08-13 12:24:17 -04:00
Tariq Toukan 26149e3e1f net/mlx5: kTLS, Fix wrong TIS opmod constants
Fix the used constants for TLS TIS opmods, per the HW specification.

Fixes: a12ff35e0f ("net/mlx5: Introduce TLS TX offload hardware bits and structures")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-08 13:01:19 -07:00
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