[PATCH] doc: update ark guide

[Shepard Siegel]

I meant to say "supported in the 23.03 release." just now in my email.
sorry for the typo!


On Fri, Feb 10, 2023 at 4:43 PM Shepard Siegel <
shepard.siegel at atomicrules.com> wrote:

> 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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