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References: <20240821191557.18744-1-jspewock@iol.unh.edu>
<20250313033611.1896695-1-probb@iol.unh.edu>
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In-Reply-To: <20250313033611.1896695-3-probb@iol.unh.edu>
From: Patrick Robb <probb@iol.unh.edu>
Date: Thu, 13 Mar 2025 08:56:41 -0400
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Message-ID: <CAJvnSUC3r7JYHZqa7RjJxvcphVSdtLXwDgsm9Q_AyHiVb_tpng@mail.gmail.com>
Subject: Re: [PATCH v5 2/2] dts: add VF configuration and workflow
To: Paul.Szczepanek@arm.com
Cc: dev@dpdk.org, Luca.Vizzarro@arm.com, npratte@iol.unh.edu,
dmarx@iol.unh.edu
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On Wed, Mar 12, 2025 at 11:40=E2=80=AFPM Patrick Robb <probb@iol.unh.edu> w=
rote:
>
> + def set_vfs(self):
> + """Create virtual functions for the port."""
> + self.node.main_session.create_vfs(self)
> + addr_list =3D self.node.main_session.get_pci_addr_of_vfs(self)
> + for addr in addr_list:
> + vf_port_config =3D PortConfig(
> + name=3Df"{self.name}-vf-{addr}",
> + pci=3Daddr,
> + os_driver_for_dpdk=3Dself.config.os_driver_for_dpdk,
> + os_driver=3Dself.config.os_driver,
> + )
> + self.virtual_functions.append(Port(self.node, vf_port_config=
))
>
>From doing additional runs from this patch, I am seeing for some reason
like 10% of the time there will be some StopIteration error on a VF port
init from get_port_info(pci), when it is indeed being provided with a pci
address (I think but I can debug).
>
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<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote g=
mail_quote_container"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Mar 12,=
2025 at 11:40=E2=80=AFPM Patrick Robb <<a href=3D"mailto:probb@iol.unh.=
edu">probb@iol.unh.edu</a>> wrote:<br></div><blockquote class=3D"gmail_q=
uote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,2=
04);padding-left:1ex"><br>
+=C2=A0 =C2=A0 def set_vfs(self):<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 """Create virtual functions for=
the port."""<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 self.node.main_session.create_vfs(self)<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 addr_list =3D self.node.main_session.get_pci_a=
ddr_of_vfs(self)<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 for addr in addr_list:<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 vf_port_config =3D PortConfig(<b=
r>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 name=3Df"{<a =
href=3D"http://self.name" rel=3D"noreferrer" target=3D"_blank">self.name</a=
>}-vf-{addr}",<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 pci=3Daddr,<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 os_driver_for_dpdk=
=3Dself.config.os_driver_for_dpdk,<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 os_driver=3Dself.c=
onfig.os_driver,<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 )<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 self.virtual_functions.append(Po=
rt(self.node, vf_port_config))<br></blockquote><div><br></div><div>From doi=
ng additional runs from this patch, I am seeing for some reason like 10% of=
the time there will be some StopIteration error on a VF port init from get=
_port_info(pci), when it is indeed being provided with a pci address (I thi=
nk but I can debug).</div><div><br></div><blockquote class=3D"gmail_quote" =
style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);pa=
dding-left:1ex">
<br>
</blockquote></div></div>
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