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

David Marchand david.marchand at redhat.com
Tue May 19 11:15:03 CEST 2020


On Tue, May 12, 2020 at 3:31 PM Darek Stojaczyk
<dariusz.stojaczyk at intel.com> 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).

Fixes: af75078fece3 ("first public release")
Cc: stable at dpdk.org

> Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk at intel.com>
Acked-by: Gaetan Rivet <grive at u256.net>

Applied, thanks.


-- 
David Marchand



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