[PATCH] doc: update ark guide

[Shepard Siegel]

Yes, exactly, the 1d6c:1022 device is the new FX2 device that will be
supported in the 22.03 release.

-Shep



On Fri, Feb 10, 2023 at 4:11 PM Ferruh Yigit <ferruh.yigit at amd.com> wrote:

> On 2/10/2023 9:03 PM, Shepard Siegel wrote:
> > Hi Ferruh,
> > The new FX2 device *is* supported by the ark driver as of DPDK 23.03.
> > These changes bring the ark doc up to date for the upcoming release.
>
> I don't know what exactly 'FX2' device is, but I was referring to
> '1d6c:1022' device id.
> Following is the device table from latest code [1], is '1d6c:1022'
> supported?
>
> static const struct rte_pci_id pci_id_ark_map[] = {
>         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x100d)},
>         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x100e)},
>         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x100f)},
>         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x1010)},
>         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x1017)},
>         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x1018)},
>         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x1019)},
>         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x101a)},
>         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x101b)},
>         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x101c)},
>         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x101e)},
>         {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x101f)},
>         {.vendor_id = 0, /* sentinel */ },
> };
>
> [1]
>
> https://elixir.bootlin.com/dpdk/v22.11.1/source/drivers/net/ark/ark_ethdev.c#L89
>
> > -Shep
> >
> >
> > On Fri, Feb 10, 2023 at 3:34 PM Ferruh Yigit <ferruh.yigit at amd.com
> > <mailto:ferruh.yigit at amd.com>> wrote:
> >
> >     On 2/10/2023 7:38 PM, Shepard Siegel wrote:
> >     > Include introduced FX2 PCIe ID and description.
> >     >
> >     > Signed-off-by: Shepard Siegel <shepard.siegel at atomicrules.com
> >     <mailto:shepard.siegel at atomicrules.com>>
> >     > ---
> >     >  doc/guides/nics/ark.rst | 20 ++++++++++++++++++++
> >     >  1 file changed, 20 insertions(+)
> >     >
> >     > diff --git a/doc/guides/nics/ark.rst b/doc/guides/nics/ark.rst
> >     > index ba00f14e80..39cd75064d 100644
> >     > --- a/doc/guides/nics/ark.rst
> >     > +++ b/doc/guides/nics/ark.rst
> >     > @@ -52,6 +52,10 @@ board. While specific capabilities such as
> >     number of physical
> >     >  hardware queue-pairs are negotiated; the driver is designed to
> >     >  remain constant over a broad and extendable feature set.
> >     >
> >     > +* FPGA Vendors Supported: AMD/Xilinx and Intel
> >     > +* Number of RX/TX Queue-Pairs: up to 128
> >     > +* PCIe Endpoint Technology: Gen3, Gen4, Gen5
> >     > +
> >     >  Intentionally, Arkville by itself DOES NOT provide common NIC
> >     >  capabilities such as offload or receive-side scaling (RSS).
> >     >  These capabilities would be viewed as a gate-level "tax" on
> >     > @@ -302,6 +306,20 @@ ARK PMD supports the following Arkville RTL
> >     PCIe instances including:
> >     >  * ``1d6c:101c`` - AR-ARK-SRIOV-VF [Arkville Virtual Function]
> >     >  * ``1d6c:101e`` - AR-ARKA-FX1 [Arkville 64B DPDK Data Mover for
> >     Agilex R-Tile]
> >     >  * ``1d6c:101f`` - AR-TK242 [2x100GbE Packet Capture Device]
> >     > +* ``1d6c:1022`` - AR-ARKA-FX2 [Arkville 128B DPDK Data Mover for
> >     Agilex]
> >
> >     Hi Shepard, Ed,
> >
> >     This device is not supported by ark driver, am I missing something?
> >
> >     > +
> >     > +Arkville RTL Core Configurations
> >     > +-------------------------------------
> >     > +
> >     > +Arkville's RTL core may be configured by the user for three
> different
> >     > +datapath widths to balance throughput against FPGA logic area.
> >     The ARK PMD
> >     > +has introspection on the RTL core configuration and acts
> accordingly.
> >     > +All three configurations present identical RTL user-facing AXI
> stream
> >     > +interfaces for both AMD/Xilinx and Intel FPGAs.
> >     > +
> >     > +* ARK-FX0 - 256-bit 32B datapath (PCIe Gen3, Gen4)
> >     > +* ARK-FX1 - 512-bit 64B datapath (PCIe Gen3, Gen4, Gen5)
> >     > +* ARK-FX2 - 1024-bit 128B datapath (PCIe Gen5x16 Only)
> >     >
> >     >  DPDK and Arkville Firmware Versioning
> >     >  -------------------------------------
> >     > @@ -334,6 +352,8 @@ Supported Features
> >     >  ------------------
> >     >
> >     >  * Dynamic ARK PMD extensions
> >     > +* Dynamic per-queue MBUF (re)sizing up to 32KB
> >     > +* SR-IOV, VF-based queue-segregation
> >     >  * Multiple receive and transmit queues
> >     >  * Jumbo frames up to 9K
> >     >  * Hardware Statistics
> >
>
>
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