From: Jeff Guo <jia.guo@intel.com>
To: helin.zhang@intel.com, jingjing.wu@intel.com
Cc: dev@dpdk.org, jia.guo@intel.com
Subject: [PATCH v4] doc: add known uio_pci_generic issue for i40e
Date: Thu, 19 Jan 2017 21:56:12 +0800 [thread overview]
Message-ID: <1484834172-26890-1-git-send-email-jia.guo@intel.com> (raw)
In-Reply-To: <1484823403-24868-1-git-send-email-jia.guo@intel.com>
When bind the "uio_pci_generic" module in X710/XL710/XXV710,
the result is failed. The "uio_pci_generic" module is not
supported by X710/XL710/XXV710.
Signed-off-by: Jeff Guo <jia.guo@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
---
v4: modify the signed-off name to be consistent.
v3: add related linux kernel commit info and fix some syntax issues
v2: add X710/XXV710 limitation case
---
doc/guides/rel_notes/known_issues.rst | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/doc/guides/rel_notes/known_issues.rst b/doc/guides/rel_notes/known_issues.rst
index 3cd4237..c1e06fc 100644
--- a/doc/guides/rel_notes/known_issues.rst
+++ b/doc/guides/rel_notes/known_issues.rst
@@ -640,3 +640,29 @@ I40e VF may not receive packets in the promiscuous mode
**Driver/Module**:
Poll Mode Driver (PMD).
+
+
+The uio_pci_generic module bind failed in X710/XL710/XXV710
+-----------------------------------------------------------
+
+**Description**:
+ The “uio_pci_generic” module is not supported by XL710, since the errata of XL710
+ states that 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>`_.
+ The hw limitation is the same as other X710/XXV710 NICs.
+
+**Implication**:
+ When bind the “uio_pci_generic” module, it probes device and check the Interrupt Status
+ bit. Since it is not supported by X710/XL710/XXV710, it return a *failed* value. The statement
+ that these products don’t support INTx masking, is indicated in the related `linux kernel commit
+ < https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/drivers/pci/quirks.c?id=8bcf4525c5d43306c5fd07e132bc8650e3491aec>`_.
+
+**Resolution/Workaround**:
+ Do not bind the “uio_pci_generic” module in X710/XL710/XXV710 NICs.
+
+**Affected Environment/Platform**:
+ All.
+
+**Driver/Module**:
+ Poll Mode Driver (PMD).
--
2.7.4
next prev parent reply other threads:[~2017-01-19 13:56 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-23 2:35 [PATCH] doc: add known issue for uio_pci_generic in XL710 Jeff Guo
2016-02-12 16:39 ` [PATCH v2] doc: add known uio_pci_generic issue for i40e Jeff Guo
2017-01-16 20:30 ` Ferruh Yigit
2017-01-17 17:00 ` Wu, Jingjing
2017-01-17 17:36 ` Ferruh Yigit
2017-01-18 2:48 ` Guo, Jia
2017-01-18 18:49 ` Ferruh Yigit
2016-07-06 14:10 ` Jeff Guo
2017-01-09 7:16 ` [PATCH] doc: add known issue for uio_pci_generic in XL710 Wu, Jingjing
2017-01-12 3:27 ` [PATCH v2] doc: add known uio_pci_generic issue for i40e Jeff Guo
2017-01-17 14:12 ` Wu, Jingjing
2017-01-19 10:52 ` [PATCH v3] " Jeff Guo
2017-01-19 10:56 ` Jeff Guo
2017-01-19 11:17 ` Mcnamara, John
2017-01-19 13:50 ` Guo, Jia
2017-01-19 14:53 ` Mcnamara, John
2017-01-20 2:28 ` Guo, Jia
2017-01-19 12:06 ` Ferruh Yigit
2017-01-19 13:53 ` Guo, Jia
2017-01-19 13:56 ` Jeff Guo [this message]
2017-01-20 2:51 ` [PATCH v4] " Jeff Guo
2017-01-22 1:46 ` Jeff Guo
2017-01-22 2:03 ` Jeff Guo
2017-01-23 8:04 ` Mcnamara, John
2017-01-23 11:44 ` Ferruh Yigit
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