From: Alejandro Lucero <alejandro.lucero@netronome.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: dev <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH 02/16] nfp: add specific pf probe function
Date: Thu, 31 Aug 2017 10:23:12 +0100 [thread overview]
Message-ID: <CAD+H991QEHjeC3tC7HYA0_Trs1AsUTa3bXVHBbnOLZxGHnYe+A@mail.gmail.com> (raw)
In-Reply-To: <a79e0e78-1951-bf1b-243f-2f880afa390f@intel.com>
On Mon, Aug 28, 2017 at 5:42 PM, Ferruh Yigit <ferruh.yigit@intel.com>
wrote:
> On 8/24/2017 5:20 PM, Alejandro Lucero wrote:
> > Configuring the NFP PMD for using the PF requires access through the
> > NSPU interface for device configuration. This patch adds a specific probe
> > function for the PF which uses the NSPU interface. Just basic NSPU access
> > is done by now reading the NSPU ABI version.
> >
> > No ethernet port is created yet.
> >
> > Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>
>
> <...>
>
> > + /* Check NSP ABI version */
> > + if (nfp_nsp_get_abi_version(nspu_desc, &major, &minor) < 0) {
> > + RTE_LOG(INFO, PMD, "NFP NSP not present\n");
> > + goto no_abi;
> > + }
> > + PMD_INIT_LOG(INFO, "nspu ABI version: %d.%d\n", major, minor);
> > +
> > + if (minor < 20) {
> > + RTE_LOG(INFO, PMD, "NFP NSP ABI version too old. Required
> 0.20 or higher\n");
>
> I believe it worth documenting this detail in commit log and documentation.
>
Ok.
>
> <...>
>
> >
> > -RTE_PMD_REGISTER_PCI(net_nfp, rte_nfp_net_pmd);
> > -RTE_PMD_REGISTER_PCI_TABLE(net_nfp, pci_id_nfp_net_map);
> > -RTE_PMD_REGISTER_KMOD_DEP(net_nfp, "* igb_uio | uio_pci_generic |
> vfio-pci");
> > +RTE_PMD_REGISTER_PCI(net_nfp_pf, rte_nfp_net_pf_pmd);
> > +RTE_PMD_REGISTER_PCI(net_nfp_vf, rte_nfp_net_vf_pmd);
>
> Now pf and vf drivers are separated. For existing drivers this has been
> documented in features file as another file (another column in table),
> but we are looking for better representation for this.
>
> What do you think, does two drivers has significant enough differences
> to be documented as two different drivers?
>
>
At this point PF and VF PMDs are exactly the same except for how
initialization is done. But, this will likely change in the near future.
I did not think about splitting out the features file, but I think it makes
sense. The existing one, just for VFs, has a problem with SRIOV. Obviously
VF support implies SRIOV, but I think the original idea of such a feature
was drivers being able to manage SRIOV, this is, creating and destroying
VFs. Also, firmware upload is just available with the PF, although such a
feature is not in the current features description list.
So, yes, I think I should have a file for the PF PMD and another one for
the VF.
I will add this in next patch set version.
Thanks
> > +RTE_PMD_REGISTER_PCI_TABLE(net_nfp_pf, pci_id_nfp_pf_net_map);
> > +RTE_PMD_REGISTER_PCI_TABLE(net_nfp_vf, pci_id_nfp_vf_net_map);
> > +RTE_PMD_REGISTER_KMOD_DEP(net_nfp_pf, "* igb_uio | uio_pci_generic |
> vfio");
> > +RTE_PMD_REGISTER_KMOD_DEP(net_nfp_vf, "* igb_uio | uio_pci_generic |
> vfio");
> >
> > /*
> > * Local variables:
> >
>
>
next prev parent reply other threads:[~2017-08-31 9:23 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-24 16:20 [dpdk-dev] [PATCH 00/16] nfp: add pf support Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 01/16] nfp: add nsp user space interface Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 02/16] nfp: add specific pf probe function Alejandro Lucero
2017-08-28 16:42 ` Ferruh Yigit
2017-08-31 9:23 ` Alejandro Lucero [this message]
2017-08-24 16:20 ` [dpdk-dev] [PATCH 03/16] nfp: add support for new pci id Alejandro Lucero
2017-08-28 16:43 ` Ferruh Yigit
2017-08-31 9:08 ` Alejandro Lucero
2017-08-31 9:13 ` Ferruh Yigit
2017-08-31 9:24 ` Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 04/16] nfp: add nsp support for commands Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 05/16] nfp: add nsp fw upload command Alejandro Lucero
2017-08-28 16:42 ` Ferruh Yigit
2017-08-31 9:04 ` Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 06/16] nfp: add nsp symbol resolution command Alejandro Lucero
2017-08-28 16:42 ` Ferruh Yigit
2017-08-31 9:35 ` Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 07/16] nfp: add fw upload logic Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 08/16] nfp: add support for vnic config bar mapping Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 09/16] nfp: add support for vNIC rx/tx bar mappings Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 10/16] nfp: support pf devices inside pmd initialization Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 11/16] nfp: allocate eth_dev from pf probe function Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 12/16] nfp: support pf multiport Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 13/16] nfp: add nsp support for hw link configuration Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 14/16] nfp: add support for hw port " Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 15/16] nfp: read pf port mac addr using nsp Alejandro Lucero
2017-08-24 16:20 ` [dpdk-dev] [PATCH 16/16] doc: update nfp with pf support information Alejandro Lucero
2017-08-28 16:42 ` [dpdk-dev] [PATCH 00/16] nfp: add pf support Ferruh Yigit
2017-08-31 9:00 ` Alejandro Lucero
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