X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Frawdevs%2Fcnxk_bphy.rst;h=bf7c00e6bcf6972702b0d435ff832cea4209de71;hb=f16662885472d33570b564e62427199d733be363;hp=120f953fb5f0a3fc953c9494eadc1a33a56dbd56;hpb=4d2b226726f4af475fb240e31dcbd453ab3d3dcc;p=dpdk.git

diff --git a/doc/guides/rawdevs/cnxk_bphy.rst b/doc/guides/rawdevs/cnxk_bphy.rst
index 120f953fb5..bf7c00e6bc 100644
--- a/doc/guides/rawdevs/cnxk_bphy.rst
+++ b/doc/guides/rawdevs/cnxk_bphy.rst
@@ -17,6 +17,8 @@ Features
 The BPHY CGX/RPM implements following features in the rawdev API:
 
 - Access to BPHY CGX/RPM via a set of predefined messages
+- Access to BPHY memory
+- Custom interrupt handlers
 
 Device Setup
 ------------
@@ -37,6 +39,9 @@ To perform data transfer use standard ``rte_rawdev_enqueue_buffers()`` and
 ``rte_rawdev_dequeue_buffers()`` APIs. Not all messages produce sensible
 responses hence dequeueing is not always necessary.
 
+BPHY CGX/RPM PMD
+----------------
+
 BPHY CGX/RPM PMD accepts ``struct cnxk_bphy_cgx_msg`` messages which differ by type and payload.
 Message types along with description are listed below. As for the usage examples please refer to
 ``cnxk_bphy_cgx_dev_selftest()``.
@@ -95,18 +100,55 @@ Message must have type set to ``CNXK_BPHY_CGX_MSG_TYPE_START_RXTX`` or
 ``CNXK_BPHY_CGX_MSG_TYPE_STOP_RXTX``. Former will enable traffic while the latter will
 do the opposite.
 
+BPHY PMD
+--------
+
+BPHY PMD accepts ``struct cnxk_bphy_irq_msg`` messages which differ by type and payload.
+Message types along with description are listed below. For some usage examples please refer to
+``bphy_rawdev_selftest()``.
+
+Initialize or finalize interrupt handling
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Message is used to setup low level interrupt handling.
+
+Message must have type set to ``CNXK_BPHY_IRQ_MSG_TYPE_INIT`` or ``CNXK_BPHY_IRQ_MSG_TYPE_FINI``.
+The former will setup low level interrupt handling while the latter will tear everything down. There
+are also two convenience functions namely ``rte_pmd_bphy_intr_init()`` and
+``rte_pmd_bphy_intr_fini()`` that take care of all details.
+
+
+Register or remove interrupt handler
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Message is used setup custom interrupt handler.
+
+Message must have type set to ``CNXK_BPHY_IRQ_MSG_TYPE_REGISTER`` or
+``CNXK_BPHY_IRQ_MSG_TYPE_UNREGISTER``. The former will register an interrupt handler while the
+latter will remove it. Prior sending actual message payload i.e ``struct cnxk_bphy_irq_info`` needs
+to be filled with relevant information. There are also two convenience functions namely
+``rte_pmd_bphy_intr_register()`` and ``rte_pmd_bphy_intr_unregister()`` that take care of all
+details.
+
+Get device memory
+~~~~~~~~~~~~~~~~~
+
+Message is used to read device MMIO address.
+
+Message must have type set to ``CNXK_BPHY_IRQ_MSG_TYPE_MEM_GET``. There's a convenience function
+``rte_pmd_bphy_intr_mem_get()`` available that takes care of retrieving that address.
+
 Self test
 ---------
 
-On EAL initialization, BPHY CGX/RPM devices will be probed and populated into
+On EAL initialization BPHY and BPHY CGX/RPM devices will be probed and populated into
 the raw devices. The rawdev ID of the device can be obtained using invocation
 of ``rte_rawdev_get_dev_id("NAME:x")`` from the test application, where:
 
-- NAME is the desired subsystem: use "BPHY_CGX" for
+- NAME is the desired subsystem: use "BPHY" for regular, and "BPHY_CGX" for
   RFOE module,
 - x is the device's bus id specified in "bus:device.func" (BDF) format.
 
 Use this identifier for further rawdev function calls.
 
-The driver's selftest rawdev API can be used to verify the BPHY CGX/RPM
-functionality.
+Selftest rawdev API can be used to verify the BPHY and BPHY CGX/RPM functionality.