https://bugs.dpdk.org/show_bug.cgi?id=1647
Bug ID: 1647
Summary: uio_pci_generic module bind failed in
X710/XL710/XXV710
Product: DPDK
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: ethdev
Assignee: dev@dpdk.org
Reporter: nandinipersad...@gmail.com
Target Milestone: ---
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. The hw limitation is the same as other
X710/XXV710 NICs.
Implication:
When use --bind=uio_pci_generic, the uio_pci_generic module 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.
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).
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