Re: [PATCH] common/qat: enable gen4 c devices

[David Marchand <david.marchand@redhat.com>]

Hello Ciara,

On Fri, Aug 11, 2023 at 2:38 PM Ciara Power <ciara.power@intel.com> wrote:
>
> This commit enables QAT 2.0c devices in the
> Intel QuickAssist Technology PMD.

It is hard to make a link between the commit title "gen 4 c devices",
the table below "402xxx" and the release notes "QAT 2.0c".
Can you use a single designation of this new device?


>
> Signed-off-by: Ciara Power <ciara.power@intel.com>
> ---
>  doc/guides/cryptodevs/qat.rst          | 4 ++++
>  doc/guides/rel_notes/release_23_11.rst | 3 +++
>  drivers/common/qat/qat_device.c        | 4 ++++
>  3 files changed, 11 insertions(+)
>
> diff --git a/doc/guides/cryptodevs/qat.rst b/doc/guides/cryptodevs/qat.rst
> index afdfb0bd22..fc5a212d00 100644
> --- a/doc/guides/cryptodevs/qat.rst
> +++ b/doc/guides/cryptodevs/qat.rst
> @@ -457,6 +457,10 @@ to see the full table)
>     +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+
>     | Yes | No  | No  | 4   | 401xxx   | IDZ/ N/A      | qat_401xxx    | 4xxx       | 4942   | 2    | 4943   | 16     |
>     +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+
> +   | Yes | Yes | Yes | 4   | 402xxx   | linux/6.4+    | qat_402xxx    | 4xxx       | 4944   | 2    | 4945   | 16     |
> +   +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+
> +   | Yes | No  | No  | 4   | 402xxx   | IDZ/ N/A      | qat_402xxx    | 4xxx       | 4944   | 2    | 4945   | 16     |
> +   +-----+-----+-----+-----+----------+---------------+---------------+------------+--------+------+--------+--------+

Is there such a kernel module named qat_402xxx upstream?
I can only find qat_4xxx.


>
>  * Note: Symmetric mixed crypto algorithms feature on Gen 2 works only with IDZ driver version 4.9.0+
>
> diff --git a/doc/guides/rel_notes/release_23_11.rst b/doc/guides/rel_notes/release_23_11.rst
> index 4411bb32c1..3bdd51a4a5 100644
> --- a/doc/guides/rel_notes/release_23_11.rst
> +++ b/doc/guides/rel_notes/release_23_11.rst
> @@ -72,6 +72,9 @@ New Features
>       Also, make sure to start the actual text at the margin.
>       =======================================================
>
> +* **Added support for QAT 2.0c devices to Intel QuickAssist Technology PMD.**
> +
> +  * QAT 2.0c (4944) devices are now enabled for QAT.

Missing an empty line.

>
>  Removed Items
>  -------------
> diff --git a/drivers/common/qat/qat_device.c b/drivers/common/qat/qat_device.c
> index 2675f0d9d1..cbf1e6a988 100644
> --- a/drivers/common/qat/qat_device.c
> +++ b/drivers/common/qat/qat_device.c
> @@ -50,6 +50,9 @@ static const struct rte_pci_id pci_id_qat_map[] = {
>                 {
>                         RTE_PCI_DEVICE(0x8086, 0x4943),
>                 },
> +               {
> +                       RTE_PCI_DEVICE(0x8086, 0x4945),
> +               },
>                 {.device_id = 0},
>  };
>
> @@ -202,6 +205,7 @@ qat_pci_device_allocate(struct rte_pci_device *pci_dev,
>                 break;
>         case 0x4941:
>         case 0x4943:
> +       case 0x4945:
>                 qat_dev_gen = QAT_GEN4;
>                 break;
>         default:
> --
> 2.25.1
>


-- 
David Marchand