* **Added support for representing buses in EAL**
- A new structure ``rte_bus`` is introduced in EAL. This allows for devices to
- be represented by buses they are connected to. A new bus can be added to
- DPDK by extending the ``rte_bus`` structure and implementing the scan and
- probe functions. Once a new bus is registered using provided APIs, new
- devices can be detected and initialized using bus scan and probe callbacks.
+ The ``rte_bus`` structure was introduced into the EAL. This allows for
+ devices to be represented by buses they are connected to. A new bus can be
+ added to DPDK by extending the ``rte_bus`` structure and implementing the
+ scan and probe functions. Once a new bus is registered using the provided
+ APIs, new devices can be detected and initialized using bus scan and probe
+ callbacks.
- With this change, devices other than PCI or VDEV type can also be represented
- in DPDK framework.
+ With this change, devices other than PCI or VDEV type can be represented
+ in the DPDK framework.
* **Added generic EAL API for I/O device memory read/write operations.**
- This API introduces 8-bit, 16-bit, 32bit, 64bit I/O device
- memory read/write operations along with the relaxed versions.
+ This API introduces 8 bit, 16 bit, 32 bit and 64 bit I/O device
+ memory read/write operations along with "relaxed" versions.
- The weakly-ordered machine like ARM needs additional I/O barrier for
- device memory read/write access over PCI bus.
- By introducing the EAL abstraction for I/O device memory read/write access,
- The drivers can access I/O device memory in architecture-agnostic manner.
- The relaxed version does not have additional I/O memory barrier, useful in
- accessing the device registers of integrated controllers which
- implicitly strongly ordered with respect to memory access.
+ Weakly-ordered architectures like ARM need an additional I/O barrier for
+ device memory read/write access over PCI bus. By introducing the EAL
+ abstraction for I/O device memory read/write access, the drivers can access
+ I/O device memory in an architecture-agnostic manner. The relaxed version
+ does not have an additional I/O memory barrier, which is useful in accessing
+ the device registers of integrated controllers which is implicitly strongly
+ ordered with respect to memory access.
* **Added generic flow API (rte_flow).**
This API provides a generic means to configure hardware to match specific
- ingress or egress traffic, alter its fate and query related counters
+ ingress or egress traffic, alter its behavior and query related counters
according to any number of user-defined rules.
- It is slightly higher-level than the legacy filtering framework which it
- encompasses and supersedes (including all functions and filter types) in
- order to expose a single interface with an unambiguous behavior that is
- common to all poll-mode drivers (PMDs).
+ In order to expose a single interface with an unambiguous behavior that is
+ common to all poll-mode drivers (PMDs) the ``rte_flow`` API is slightly
+ higher-level than the legacy filtering framework, which it encompasses and
+ supersedes (including all functions and filter types) .
See the :ref:`Generic flow API <Generic_flow_API>` documentation for more
information.
* **Added firmware version get API.**
- Added a new function ``rte_eth_dev_fw_version_get()`` to fetch firmware
- version by a given device.
+ Added a new function ``rte_eth_dev_fw_version_get()`` to fetch the firmware
+ version for a given device.
* **Added APIs for MACsec offload support to the ixgbe PMD.**
Added support for I219 Intel 1GbE NICs.
-* **Added VF Daemon (VFD) on i40e. - EXPERIMENTAL**
-
- This's an EXPERIMENTAL feature to enhance the capability of DPDK PF as many
- VF management features are not supported by kernel PF driver.
- Some new private APIs are implemented in PMD without abstrction layer.
- They can be used directly by some users who have the need.
-
- The new APIs to control VFs directly from PF include,
- 1) set VF MAC anti-spoofing
- 2) set VF VLAN anti-spoofing
- 3) set TX loopback
- 4) set VF unicast promiscuous mode
- 5) set VF multicast promiscuous mode
- 6) set VF MTU
- 7) get/reset VF stats
- 8) set VF MAC address
- 9) set VF VLAN stripping
- 10) VF VLAN insertion
- 12) set VF broadcast mode
- 13) set VF VLAN tag
- 14) set VF VLAN filter
- VFD also includes VF to PF mailbox message management by APP.
- When PF receives mailbox messages from VF, PF should call the callback
- provided by APP to know if they're permitted to be processed.
-
- As an EXPERIMENTAL feature, please aware it can be changed or even
+* **Added VF Daemon (VFD) for i40e. - EXPERIMENTAL**
+
+ This is an EXPERIMENTAL feature to enhance the capability of the DPDK PF as
+ many VF management features are not currently supported by the kernel PF
+ driver. Some new private APIs are implemented directly in the PMD without an
+ abstraction layer. They can be used directly by some users who have the
+ need.
+
+ The new APIs to control VFs directly from PF include:
+
+ * Set VF MAC anti-spoofing.
+ * Set VF VLAN anti-spoofing.
+ * Set TX loopback.
+ * Set VF unicast promiscuous mode.
+ * Set VF multicast promiscuous mode.
+ * Set VF MTU.
+ * Get/reset VF stats.
+ * Set VF MAC address.
+ * Set VF VLAN stripping.
+ * Vf VLAN insertion.
+ * Set VF broadcast mode.
+ * Set VF VLAN tag.
+ * Set VF VLAN filter.
+
+ VFD also includes VF to PF mailbox message management from an application.
+ When the PF receives mailbox messages from the VF the PF should call the
+ callback provided by the application to know if they're permitted to be
+ processed.
+
+ As an EXPERIMENTAL feature, please be aware it can be changed or even
removed without prior notice.
* **Updated the i40e base driver.**
- updated the i40e base driver, including the following changes:
+ Updated the i40e base driver, including the following changes:
- * replace existing legacy memcpy() calls with i40e_memcpy() calls.
- * use BIT() macro instead of bit fields
- * add clear all WoL filters implementation
- * add broadcast promiscuous control per VLAN
- * remove unused X722_SUPPORT and I40E_NDIS_SUPPORT MARCOs
+ * Replace existing legacy ``memcpy()`` calls with ``i40e_memcpy()`` calls.
+ * Use ``BIT()`` macro instead of bit fields.
+ * Add clear all WoL filters implementation.
+ * Add broadcast promiscuous control per VLAN.
+ * Remove unused ``X722_SUPPORT`` and ``I40E_NDIS_SUPPORT`` macros.
* **Updated the enic driver.**
- * Set new Rx checksum flags in mbufs to indicate unknown, good or bad.
+ * Set new Rx checksum flags in mbufs to indicate unknown, good or bad checksums.
* Fix set/remove of MAC addresses. Allow up to 64 addresses per device.
* Enable TSO on outer headers.
* **Added Solarflare libefx-based network PMD.**
- A new network PMD which supports Solarflare SFN7xxx and SFN8xxx family
- of 10/40 Gbps adapters has been added.
+ Added a new network PMD which supports Solarflare SFN7xxx and SFN8xxx family
+ of 10/40 Gbps adapters.
* **Updated the mlx4 driver.**
* **Added support for Mellanox ConnectX-5 adapters (mlx5).**
- Support for Mellanox ConnectX-5 family of 10/25/40/50/100 Gbps adapters
- has been added to the existing mlx5 PMD.
+ Added support for Mellanox ConnectX-5 family of 10/25/40/50/100 Gbps
+ adapters to the existing mlx5 PMD.
* **Updated the mlx5 driver.**
* **virtio-user with vhost-kernel as another exceptional path.**
- Previously, we upstreamed a virtual device, virtio-user with vhost-user
- as the backend, as a way for IPC (Inter-Process Communication) and user
+ Previously, we upstreamed a virtual device, virtio-user with vhost-user as
+ the backend as a way of enabling IPC (Inter-Process Communication) and user
space container networking.
- Virtio-user with vhost-kernel as the backend is a solution for exceptional
- path, such as KNI, which exchanges packets with kernel networking stack.
+ Virtio-user with vhost-kernel as the backend is a solution for the exception
+ path, such as KNI, which exchanges packets with the kernel networking stack.
This solution is very promising in:
- * maintenance: vhost and vhost-net (kernel) is upstreamed and extensively
+ * Maintenance: vhost and vhost-net (kernel) is an upstreamed and extensively
used kernel module.
- * features: vhost-net is born to be a networking solution, which has
+ * Features: vhost-net is designed to be a networking solution, which has
lots of networking related features, like multi-queue, TSO, multi-seg
mbuf, etc.
- * performance: similar to KNI, this solution would use one or more
+ * Performance: similar to KNI, this solution would use one or more
kthreads to send/receive packets from user space DPDK applications,
which has little impact on user space polling thread (except that
it might enter into kernel space to wake up those kthreads if
necessary).
-* **Added virtio Rx interrupt suppprt.**
+* **Added virtio Rx interrupt support.**
- This feature enables Rx interrupt mode for virtio pci net devices as
- binded to VFIO (noiommu mode) and drived by virtio PMD.
+ Added a feature to enable Rx interrupt mode for virtio pci net devices as
+ bound to VFIO (noiommu mode) and driven by virtio PMD.
- With this feature, virtio PMD can switch between polling mode and
+ With this feature, the virtio PMD can switch between polling mode and
interrupt mode, to achieve best performance, and at the same time save
- power. It can work on both legacy and modern virtio devices. At this mode,
- each rxq is mapped with an exluded MSIx interrupt.
+ power. It can work on both legacy and modern virtio devices. In this mode,
+ each ``rxq`` is mapped with an excluded MSIx interrupt.
See the :ref:`Virtio Interrupt Mode <virtio_interrupt_mode>` documentation
for more information.
* **Added ARMv8 crypto PMD.**
- A new crypto PMD has been added, which provides combined mode cryptografic
+ A new crypto PMD has been added, which provides combined mode cryptographic
operations optimized for ARMv8 processors. The driver can be used to enhance
performance in processing chained operations such as cipher + HMAC.
* **Updated the QAT PMD.**
- The QAT PMD was updated with additional support for:
+ The QAT PMD has been updated with additional support for:
* DES algorithm.
* Scatter-gather list (SGL) support.
* The Intel(R) Multi Buffer Crypto for IPsec library used in
AESNI MB PMD has been moved to a new repository, in GitHub.
- * Support for single operations (cipher only and authentication only).
+ * Support has been added for single operations (cipher only and
+ authentication only).
* **Updated the AES-NI GCM PMD.**
- The AES-NI GCM PMD was migrated from MB library to ISA-L library.
- The migration entailed the following additional support for:
+ The AES-NI GCM PMD was migrated from the Multi Buffer library to the ISA-L
+ library. The migration entailed adding additional support for:
* GMAC algorithm.
* 256-bit cipher key.
* Session-less mode.
* Out-of place processing
- * Scatter-gatter support for chained mbufs (only out-of place and destination
+ * Scatter-gather support for chained mbufs (only out-of place and destination
mbuf must be contiguous)
* **Added crypto performance test application.**
- A new performance test application allows measuring performance parameters
- of PMDs available in crypto tree.
+ Added a new performance test application for measuring performance
+ parameters of PMDs available in the crypto tree.
* **Added Elastic Flow Distributor library (rte_efd).**
- This new library uses perfect hashing to determine a target/value for a
- given incoming flow key.
+ Added a new library which uses perfect hashing to determine a target/value
+ for a given incoming flow key.
- It does not store the key itself for lookup operations, and therefore,
- lookup performance is not dependent on the key size. Also, the target/value
- can be any arbitrary value (8 bits by default). Finally, the storage requirement
- is much smaller than a hash-based flow table and therefore, it can better fit for
- CPU cache, being able to scale to millions of flow keys.
+ The library does not store the key itself for lookup operations, and
+ therefore, lookup performance is not dependent on the key size. Also, the
+ target/value can be any arbitrary value (8 bits by default). Finally, the
+ storage requirement is much smaller than a hash-based flow table and
+ therefore, it can better fit in CPU cache and scale to millions of flow
+ keys.
See the :ref:`Elastic Flow Distributor Library <Efd_Library>` documentation in
the Programmers Guide document, for more information.
Also, make sure to start the actual text at the margin.
=========================================================
-
-EAL
-~~~
-
-
Drivers
~~~~~~~
* **net/virtio: Fixed multiple process support.**
- Fixed few regressions introduced in recent releases that break the virtio
+ Fixed a few regressions introduced in recent releases that break the virtio
multiple process support.
-Libraries
-~~~~~~~~~
-
-
Examples
~~~~~~~~
* **examples/ethtool: Fixed crash with non-PCI devices.**
- Querying a non-PCI device was dereferencing non-existent PCI data
- resulting in a segmentation fault.
+ Fixed issue where querying a non-PCI device was dereferencing non-existent
+ PCI data resulting in a segmentation fault.
-Other
-~~~~~
-
-
-Known Issues
-------------
-
-.. This section should contain new known issues in this release. Sample format:
-
- * **Add title in present tense with full stop.**
-
- Add a short 1-2 sentence description of the known issue in the present
- tense. Add information on any known workarounds.
-
- This section is a comment. do not overwrite or remove it.
- Also, make sure to start the actual text at the margin.
- =========================================================
-
API Changes
-----------
* **Moved five APIs for VF management from the ethdev to the ixgbe PMD.**
- The following five APIs for VF management from the PF have been removed from the ethdev,
- renamed and added to the ixgbe PMD::
+ The following five APIs for VF management from the PF have been removed from
+ the ethdev, renamed, and added to the ixgbe PMD::
- rte_eth_dev_set_vf_rate_limit
- rte_eth_dev_set_vf_rx
- rte_eth_dev_set_vf_rxmode
- rte_eth_dev_set_vf_tx
- rte_eth_dev_set_vf_vlan_filter
+ rte_eth_dev_set_vf_rate_limit()
+ rte_eth_dev_set_vf_rx()
+ rte_eth_dev_set_vf_rxmode()
+ rte_eth_dev_set_vf_tx()
+ rte_eth_dev_set_vf_vlan_filter()
The API's have been renamed to the following::
- rte_pmd_ixgbe_set_vf_rate_limit
- rte_pmd_ixgbe_set_vf_rx
- rte_pmd_ixgbe_set_vf_rxmode
- rte_pmd_ixgbe_set_vf_tx
- rte_pmd_ixgbe_set_vf_vlan_filter
+ rte_pmd_ixgbe_set_vf_rate_limit()
+ rte_pmd_ixgbe_set_vf_rx()
+ rte_pmd_ixgbe_set_vf_rxmode()
+ rte_pmd_ixgbe_set_vf_tx()
+ rte_pmd_ixgbe_set_vf_vlan_filter()
The declarations for the API’s can be found in ``rte_pmd_ixgbe.h``.
+
ABI Changes
-----------
git.droids-corp.org / dpdk.git / commitdiff