[v6,12/12] raw/ioat: deprecate ioat rawdev driver

Message ID 20210927102157.1570116-13-conor.walsh@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Series dma: add dmadev driver for ioat devices |


Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation warning apply issues

Commit Message

Conor Walsh Sept. 27, 2021, 10:21 a.m. UTC
  Deprecate the rawdev IOAT driver as both IOAT and IDXD drivers have
moved to dmadev.

Signed-off-by: Conor Walsh <conor.walsh@intel.com>
Acked-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
 MAINTAINERS                          | 2 +-
 doc/guides/rawdevs/ioat.rst          | 4 ++++
 doc/guides/rel_notes/deprecation.rst | 7 +++++++
 3 files changed, 12 insertions(+), 1 deletion(-)


index ccabba9169..a4bcd2d024 100644
@@ -1322,7 +1322,7 @@  T: git://dpdk.org/next/dpdk-next-net-intel
 F: drivers/raw/ifpga/
 F: doc/guides/rawdevs/ifpga.rst
-IOAT Rawdev
 M: Bruce Richardson <bruce.richardson@intel.com>
 F: drivers/raw/ioat/
 F: doc/guides/rawdevs/ioat.rst
diff --git a/doc/guides/rawdevs/ioat.rst b/doc/guides/rawdevs/ioat.rst
index a65530bd30..98d15dd032 100644
--- a/doc/guides/rawdevs/ioat.rst
+++ b/doc/guides/rawdevs/ioat.rst
@@ -6,6 +6,10 @@ 
 IOAT Rawdev Driver
+.. warning::
+        As of DPDK 21.11 the rawdev implementation of the IOAT driver has been deprecated.
+        Please use the dmadev library instead.
 The ``ioat`` rawdev driver provides a poll-mode driver (PMD) for Intel\ |reg|
 Data Streaming Accelerator `(Intel DSA)
 <https://01.org/blogs/2019/introducing-intel-data-streaming-accelerator>`_ and for Intel\ |reg|
diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 59445a6f42..b1dbb45802 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -284,3 +284,10 @@  Deprecation Notices
   reserved bytes to 2 (from 3), and use 1 byte to indicate warnings and other
   information from the crypto/security operation. This field will be used to
   communicate events such as soft expiry with IPsec in lookaside mode.
+* raw/ioat: The ``ioat`` rawdev driver has been deprecated, since it's
+  functionality is provided through the new ``dmadev`` infrastructure.
+  To continue to use hardware previously supported by the ``ioat`` rawdev driver,
+  applications should be updated to use the ``dmadev`` library instead,
+  with the underlying HW-functionality being provided by the ``ioat`` or
+  ``idxd`` dma drivers