doc: announce PCI resources map API removal

The PCI resources map API (pci_map_resource/pci_unmap_resource) was
imposing use of Unix mmap flags while it does not make sense on Windows.
This API was only used to internally setup PCI devices in the PCI bus
driver and has no known external users.

Announce its removal in 20.11 with its associated structures.

The workaround implemented in the commit 9d2b24593724 ("pci: keep API
compatibility with mmap values") will be removed at the same time.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Gaetan Rivet <grive@u256.net>
Acked-by: Thomas Monjalon <thomas@monjalon.net>

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 806938b..52c9b9a 100644 (file)
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -74,6 +74,17 @@ Deprecation Notices
   us extending existing enum/define.
   One solution can be using a fixed size array instead of ``.*MAX.*`` value.
 
+* pci: The PCI resources map API (``pci_map_resource`` and
+  ``pci_unmap_resource``) was not abstracting the Unix mmap flags (see the
+  workaround for Windows support implemented in the commit
+  9d2b24593724 ("pci: keep API compatibility with mmap values")).
+  This API will be removed from the public API in 20.11 and moved to the PCI
+  bus driver along with the PCI resources lists and associated structures
+  (``pci_map``, ``pci_msix_table``, ``mapped_pci_resource`` and
+  ``mapped_pci_res_list``).
+  With this removal, there won't be a need for the mentioned workaround which
+  will be reverted.
+
 * pci: The ``rte_kernel_driver`` enum defined in rte_dev.h will be made private
   to the PCI subsystem as it is used only by the PCI bus driver and PCI
   drivers.