From: "Burakov, Anatoly" <anatoly.burakov@intel.com>
To: Darek Stojaczyk <dariusz.stojaczyk@intel.com>, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] pci: properly parse 32-bit domain numbers
Date: Tue, 12 May 2020 16:08:01 +0100 [thread overview]
Message-ID: <eb3fda27-6cfb-285f-a240-590f451adb85@intel.com> (raw)
In-Reply-To: <20200512133057.106374-1-dariusz.stojaczyk@intel.com>
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@intel.com>
> ---
Cc: stable?
--
Thanks,
Anatoly
next prev parent reply other threads:[~2020-05-12 15:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-12 13:30 Darek Stojaczyk
2020-05-12 15:08 ` Burakov, Anatoly [this message]
2020-05-12 18:16 ` Stephen Hemminger
2020-05-13 9:04 ` Gaëtan Rivet
2020-05-13 12:20 ` Stojaczyk, Dariusz
2020-05-19 9:15 ` David Marchand
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