[dpdk-dev] [PATCH] pci: properly parse 32-bit domain numbers

Burakov, Anatoly anatoly.burakov at intel.com
Tue May 12 17:08:01 CEST 2020


On 12-May-20 2:30 PM, Darek Stojaczyk wrote:
> The parsing code was bailing on domains greater than UINT16_MAX,
> but domain numbers like that are still valid and present on some systems.
> One example is Intel VMD (Volume Management Device), which acts somewhat
> as a software-managed PCI switch and its upstream linux driver assigns
> all downstream devices a PCI domain of 0x10000.
> 
> Parsing a BDF like 10000:01:00.0 was failing before. To fix it, increase
> the upper limit of domain number to UINT32_MAX. This matches the size of
> struct rte_pci_addr->domain (uint32).
> 
> Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk at intel.com>
> ---

Cc: stable?

-- 
Thanks,
Anatoly


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