linux-kernel - Re: [PATCH rdma-next 3/3] RDMA/mana_ib: Add support of 4M, 1G, and 2G pages

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Message-ID: <20250409122743.GK199604@unreal>
Date: Wed, 9 Apr 2025 15:27:43 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Konstantin Taranov <kotaranov@...ux.microsoft.com>
Cc: kotaranov@...rosoft.com, pabeni@...hat.com, haiyangz@...rosoft.com,
	kys@...rosoft.com, edumazet@...gle.com, kuba@...nel.org,
	davem@...emloft.net, decui@...rosoft.com, wei.liu@...nel.org,
	longli@...rosoft.com, jgg@...pe.ca, linux-rdma@...r.kernel.org,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH rdma-next 3/3] RDMA/mana_ib: Add support of 4M, 1G, and
 2G pages

On Fri, Apr 04, 2025 at 07:45:55AM -0700, Konstantin Taranov wrote:
> From: Konstantin Taranov <kotaranov@...rosoft.com>
> 
> Check PF capability flag whether the 4M, 1G, and 2G pages are
> supported. Add these pages sizes to mana_ib, if supported.
> 
> Define possible page sizes in enum gdma_page_type and
> remove unused enum atb_page_size.
> 
> Signed-off-by: Konstantin Taranov <kotaranov@...rosoft.com>
> ---
>  drivers/infiniband/hw/mana/main.c             | 10 +++++--
>  drivers/infiniband/hw/mana/mana_ib.h          |  1 +
>  .../net/ethernet/microsoft/mana/gdma_main.c   |  1 +
>  include/net/mana/gdma.h                       | 30 ++++++++++---------
>  4 files changed, 25 insertions(+), 17 deletions(-)

<...>

>  enum gdma_page_type {
>  	GDMA_PAGE_TYPE_4K,
> +	GDMA_PAGE_SIZE_8K,
> +	GDMA_PAGE_SIZE_16K,
> +	GDMA_PAGE_SIZE_32K,
> +	GDMA_PAGE_SIZE_64K,
> +	GDMA_PAGE_SIZE_128K,
> +	GDMA_PAGE_SIZE_256K,
> +	GDMA_PAGE_SIZE_512K,
> +	GDMA_PAGE_SIZE_1M,
> +	GDMA_PAGE_SIZE_2M,
> +	/* Only when GDMA_DRV_CAP_FLAG_1_GDMA_PAGES_4MB_1GB_2GB is set */
> +	GDMA_PAGE_SIZE_4M,
> +	GDMA_PAGE_SIZE_1G = 18,
> +	GDMA_PAGE_SIZE_2G

Where are all these defines used?

Thanks