linux-kernel - Re: [PATCH v2 2/2] dmaengine: idxd: Add new DSA and IAA device IDs for Diamond Rapids platform

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Message-ID: <bc0f3e64-300e-4879-822c-3e86103720c5@intel.com>
Date: Wed, 28 Aug 2024 16:37:31 -0700
From: Dave Jiang <dave.jiang@...el.com>
To: Fenghua Yu <fenghua.yu@...el.com>, Vinod Koul <vkoul@...nel.org>
Cc: dmaengine@...r.kernel.org, linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/2] dmaengine: idxd: Add new DSA and IAA device IDs
 for Diamond Rapids platform



On 8/28/24 4:34 PM, Fenghua Yu wrote:
> A new DSA device ID, 0x1212, and a new IAA device ID, 0x1216, are
> introduced for Diamond Rapids platform. Add the device IDs to the IDXD
> driver.
> 
> The name "IAA" is used in new code instead of the old name "IAX".
> However, the "IAX" naming (e.g., IDXD_TYPE_IAX) is retained for legacy
> code compatibility.
> 
> Signed-off-by: Fenghua Yu <fenghua.yu@...el.com>
Reviewed-by: Dave Jiang <dave.jiang@...el.com>

> ---
> v2:
> - Replace "IAX" with "IAA" (Dave Jiang)
> 
>  drivers/dma/idxd/init.c | 4 ++++
>  include/linux/pci_ids.h | 2 ++
>  2 files changed, 6 insertions(+)
> 
> diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
> index 415b17b0acd0..0f693b27879c 100644
> --- a/drivers/dma/idxd/init.c
> +++ b/drivers/dma/idxd/init.c
> @@ -71,9 +71,13 @@ static struct pci_device_id idxd_pci_tbl[] = {
>  	{ PCI_DEVICE_DATA(INTEL, DSA_SPR0, &idxd_driver_data[IDXD_TYPE_DSA]) },
>  	/* DSA on GNR-D platforms */
>  	{ PCI_DEVICE_DATA(INTEL, DSA_GNRD, &idxd_driver_data[IDXD_TYPE_DSA]) },
> +	/* DSA on DMR platforms */
> +	{ PCI_DEVICE_DATA(INTEL, DSA_DMR, &idxd_driver_data[IDXD_TYPE_DSA]) },
>  
>  	/* IAX ver 1.0 platforms */
>  	{ PCI_DEVICE_DATA(INTEL, IAX_SPR0, &idxd_driver_data[IDXD_TYPE_IAX]) },
> +	/* IAA on DMR platforms */
> +	{ PCI_DEVICE_DATA(INTEL, IAA_DMR, &idxd_driver_data[IDXD_TYPE_IAX]) },
>  	{ 0, }
>  };
>  MODULE_DEVICE_TABLE(pci, idxd_pci_tbl);
> diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
> index ff99047dac44..8139231d0e86 100644
> --- a/include/linux/pci_ids.h
> +++ b/include/linux/pci_ids.h
> @@ -2707,6 +2707,8 @@
>  #define PCI_DEVICE_ID_INTEL_82815_CGC	0x1132
>  #define PCI_DEVICE_ID_INTEL_SST_TNG	0x119a
>  #define PCI_DEVICE_ID_INTEL_DSA_GNRD	0x11fb
> +#define PCI_DEVICE_ID_INTEL_DSA_DMR	0x1212
> +#define PCI_DEVICE_ID_INTEL_IAA_DMR	0x1216
>  #define PCI_DEVICE_ID_INTEL_82092AA_0	0x1221
>  #define PCI_DEVICE_ID_INTEL_82437	0x122d
>  #define PCI_DEVICE_ID_INTEL_82371FB_0	0x122e