ena: Upgrade ena-com to freebsd v2.7.0

Merge commit '04cf7cee5ae0c6bb29eb21ce85bab7ca7386a95f'

Approved by: cperciva (mentor)
MFC after: 2 weeks
Sponsored by: Amazon, Inc.

Merge tag 'vendor/ena-com/2.4.0'

Update the driver in order not to break its compilation
and make use of the new ENA logging system

Migrate platform code to the new logging system provided by ena_com
layer.

Make ENA_INFO the new default log level.

Remove all explicit use of `device_printf`, all new logs requiring one
of the log macros to be used.

Adjust ENA driver files to latest ena-com changes

* Use the new API of ena_trace_*
* Fix typo syndrom --> syndrome
* Remove validation of the Rx req ID (already performed in the ena-com)
* Remove usage of deprecated ENA_ASSERT macro

Submitted by: Ido Segev <idose@amazon.com>
Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D27115

Fix completion descriptors alignment for the ENA

The latest generation hardware requires IO CQ (completion queue)
descriptors memory to be aligned to a 4K. It needs that feature for
the best performance.

Allocating unaligned descriptors will have a big performance impact as
the packet processing in a HW won't be optimized properly. For that
purpose adjust ena_dma_alloc() to support it.

It's a critical fix, especially for the arm64 EC2 instances.

Submitted by: Ido Segev <idose@amazon.com>
Obtained from: Amazon, Inc
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D27114

Adjust ENA driver to the new HAL

* Removed adaptive interrupt moderation (not suported on FreeBSD).
* Use ena_com_free_q_entries instead of ena_com_free_desc.
* Don't use ENA_MEM_FREE outside of the ena_com.
* Don't use barriers before calling doorbells as it's already done in
the HAL.
* Add function that generates random RSS key, common for all driver's
interfaces.
* Change admin stats sysctls to U64.

Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc.

Adjust ENA driver to the new ena-com

Recent HAL change preparing to support ENAv2 required minor driver
modifications.

The ena_com_sq_empty_space() is not available in this ena-com, so it had
to be replaced with ena_com_free_desc().

Moreover, the ena_com_admin_init() is no longer using 3rd argument
indicating if the spin lock should be initialized, so it was removed.

Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc.

Update ena-com HAL to v1.1.4.3 and update driver accordingly

The newest ena-com HAL supports LLQv2 and introduces
API changes. In order not to break the driver compilation
it was updated/fixed in a following way:

* Change version of the driver to 0.8.0
* Provide reset cause when triggering reset of the device
* Reset device after attach fails
* In the reset task free management irq after calling ena_down. Admin
queue can still be used before ena_down is called, or when it is
being handled
* Do not reset device if ena_reset_task fails
* Move call of the ena_com_dev_reset to the ena_down() routine - it
should be called only if interface was up
* Use different function for checking empty space on the sq ring
(ena-com API change)
* Fix typo on ENA_TX_CLEANUP_THRESHOLD
* Change checking for EPERM with EOPNOTSUPP - change in the ena-com API
* Minor style fixes

Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Amazon.com, Inc.
Semihalf
Sponsored by: Amazon.com, Inc.
Differential Revision: https://reviews.freebsd.org/D12143

Import Amazon Elastic Network Adapter (ENA) HAL to sys/contrib/

Import from vendor-sys/ena-com/1.1.4.1
SVN rev.: 317516
Version: 1.1.4.1

Obtained from: Amazon.com, Inc.

Merge tag 'vendor/ena-com/2.4.0'

Update the driver in order not to break its compilation
and make use of the new ENA logging system

Migrate platform code to the new logging system provided by ena_com
layer.

Make ENA_INFO the new default log level.

Remove all explicit use of `device_printf`, all new logs requiring one
of the log macros to be used.

Adjust ENA driver files to latest ena-com changes

* Use the new API of ena_trace_*
* Fix typo syndrom --> syndrome
* Remove validation of the Rx req ID (already performed in the ena-com)
* Remove usage of deprecated ENA_ASSERT macro

Submitted by: Ido Segev <idose@amazon.com>
Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D27115

Fix completion descriptors alignment for the ENA

The latest generation hardware requires IO CQ (completion queue)
descriptors memory to be aligned to a 4K. It needs that feature for
the best performance.

Allocating unaligned descriptors will have a big performance impact as
the packet processing in a HW won't be optimized properly. For that
purpose adjust ena_dma_alloc() to support it.

It's a critical fix, especially for the arm64 EC2 instances.

Submitted by: Ido Segev <idose@amazon.com>
Obtained from: Amazon, Inc
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D27114

Adjust ENA driver to the new HAL

* Removed adaptive interrupt moderation (not suported on FreeBSD).
* Use ena_com_free_q_entries instead of ena_com_free_desc.
* Don't use ENA_MEM_FREE outside of the ena_com.
* Don't use barriers before calling doorbells as it's already done in
the HAL.
* Add function that generates random RSS key, common for all driver's
interfaces.
* Change admin stats sysctls to U64.

Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc.

Adjust ENA driver to the new ena-com

Recent HAL change preparing to support ENAv2 required minor driver
modifications.

The ena_com_sq_empty_space() is not available in this ena-com, so it had
to be replaced with ena_com_free_desc().

Moreover, the ena_com_admin_init() is no longer using 3rd argument
indicating if the spin lock should be initialized, so it was removed.

Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc.

Update ena-com HAL to v1.1.4.3 and update driver accordingly

The newest ena-com HAL supports LLQv2 and introduces
API changes. In order not to break the driver compilation
it was updated/fixed in a following way:

* Change version of the driver to 0.8.0
* Provide reset cause when triggering reset of the device
* Reset device after attach fails
* In the reset task free management irq after calling ena_down. Admin
queue can still be used before ena_down is called, or when it is
being handled
* Do not reset device if ena_reset_task fails
* Move call of the ena_com_dev_reset to the ena_down() routine - it
should be called only if interface was up
* Use different function for checking empty space on the sq ring
(ena-com API change)
* Fix typo on ENA_TX_CLEANUP_THRESHOLD
* Change checking for EPERM with EOPNOTSUPP - change in the ena-com API
* Minor style fixes

Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Amazon.com, Inc.
Semihalf
Sponsored by: Amazon.com, Inc.
Differential Revision: https://reviews.freebsd.org/D12143

Import Amazon Elastic Network Adapter (ENA) HAL to sys/contrib/

Import from vendor-sys/ena-com/1.1.4.1
SVN rev.: 317516
Version: 1.1.4.1

Obtained from: Amazon.com, Inc.