[dpdk-dev] [PATCH] doc: add known issue for uio_pci_generic in XL710

[Jeff Guo]

When bind with uio_pci_generic in XL710, the result is failed.
uio_pci_generic is not supported by XL710.

Signed-off-by: Jeff Guo <jia.guo at intel.com>
---
 doc/guides/rel_notes/known_issues.rst | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/doc/guides/rel_notes/known_issues.rst b/doc/guides/rel_notes/known_issues.rst
index 3cd4237..3abcb64 100644
--- a/doc/guides/rel_notes/known_issues.rst
+++ b/doc/guides/rel_notes/known_issues.rst
@@ -640,3 +640,25 @@ I40e VF may not receive packets in the promiscuous mode
 
 **Driver/Module**:
    Poll Mode Driver (PMD).
+
+
+uio_pci_generic bind failed in XL710
+-------------------------------------------------------
+
+**Description**:
+   uio_pci_generic is not supported by XL710, since the errata of XL710 that the feature
+   about the Interrupt Status bit is not implemented.The errata is the item #71 from the
+   `xl710 controller spec  <http://www.intel.com/content/www/us/en/embedded/products/networking/xl710-10-40-controller-spec-update.html>`_.
+
+**Implication**:
+   When bind uio_pci_generic, the uio_pci_generic probe device and check the Interrupt
+   Status bit related feature of NICs , since it is not supported by XL710 so it return failed.
+
+**Resolution/Workaround**:
+   Do not bind to use uio_pci_generic in XL710 NICs.
+
+**Affected Environment/Platform**:
+   All.
+
+**Driver/Module**:
+   Poll Mode Driver (PMD).
-- 
1.9.3