net/ena: support Rx interrupt

[dpdk.git] / doc / guides / nics / ena.rst

diff --git a/doc/guides/nics/ena.rst b/doc/guides/nics/ena.rst
index 3a6074c..6395109 100644 (file)
--- a/doc/guides/nics/ena.rst
+++ b/doc/guides/nics/ena.rst
@@ -79,22 +79,6 @@ The driver supports multi-queue for both Tx and Rx.
 Configuration information
 -------------------------
 
-**DPDK Configuration Parameters**
-
-  The following configuration options are available for the ENA PMD:
-
-   * **CONFIG_RTE_LIBRTE_ENA_PMD** (default y): Enables or disables inclusion
-     of the ENA PMD driver in the DPDK compilation.
-
-   * **CONFIG_RTE_LIBRTE_ENA_DEBUG_RX** (default n): Enables or disables debug
-     logging of RX logic within the ENA PMD driver.
-
-   * **CONFIG_RTE_LIBRTE_ENA_DEBUG_TX** (default n): Enables or disables debug
-     logging of TX logic within the ENA PMD driver.
-
-   * **CONFIG_RTE_LIBRTE_ENA_COM_DEBUG** (default n): Enables or disables debug
-     logging of low level tx/rx logic in ena_com(base) within the ENA PMD driver.
-
 **Runtime Configuration Parameters**
 
    * **large_llq_hdr** (default 0)
@@ -134,7 +118,7 @@ Supported ENA adapters
 Current ENA PMD supports the following ENA adapters including:
 
 * ``1d0f:ec20`` - ENA VF
-* ``1d0f:ec21`` - ENA VF with LLQ support
+* ``1d0f:ec21`` - ENA VF RSERV0
 
 Supported Operating Systems
 ---------------------------
@@ -157,6 +141,7 @@ Supported features
 * LSC event notification
 * Watchdog (requires handling of timers in the application)
 * Device reset upon failure
+* Rx interrupts
 
 Prerequisites
 -------------
@@ -196,6 +181,17 @@ At this point the system should be ready to run DPDK applications. Once the
 application runs to completion, the ENA can be detached from attached module if
 necessary.
 
+**Rx interrupts support**
+
+ENA PMD supports Rx interrupts, which can be used to wake up lcores waiting for
+input. Please note that it won't work with ``igb_uio``, so to use this feature,
+the ``vfio-pci`` should be used.
+
+ENA handles admin interrupts and AENQ notifications on separate interrupt.
+There is possibility that there won't be enough event file descriptors to
+handle both admin and Rx interrupts. In that situation the Rx interrupt request
+will fail.
+
 **Note about usage on \*.metal instances**
 
 On AWS, the metal instances are supporting IOMMU for both arm64 and x86_64
@@ -242,7 +238,7 @@ Usage example
 
 Follow instructions available in the document
 :ref:`compiling and testing a PMD for a NIC <pmd_build_and_test>` to launch
-**testpmd** with Amazon ENA devices managed by librte_pmd_ena.
+**testpmd** with Amazon ENA devices managed by librte_net_ena.
 
 Example output: