Re: [PATCH v3 5/6] tools/testing/cxl: Mock the max err records field of Identify cmd

[Jonathan Cameron <Jonathan.Cameron@Huawei.com>]

On Thu, 10 Nov 2022 19:12:43 -0800
alison.schofield@intel.com wrote:

> From: Alison Schofield <alison.schofield@intel.com>
> 
> The CXL mbox command Identify reports the maximum media error
> records that a device will report. Mock it here for testing
> the GET POISON LIST mbox command.
> 
> Signed-off-by: Alison Schofield <alison.schofield@intel.com>
> ---
>  tools/testing/cxl/test/mem.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c
> index aa2df3a15051..f0704d090073 100644
> --- a/tools/testing/cxl/test/mem.c
> +++ b/tools/testing/cxl/test/mem.c
> @@ -111,6 +111,10 @@ static int mock_id(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
>  			cpu_to_le64(DEV_SIZE / CXL_CAPACITY_MULTIPLIER),
>  	};
>  
> +	__le32 val = cpu_to_le32(SZ_64);
> +
> +	memcpy(id.poison_list_max_mer, &val, 3);
As in other direction, can we do this with a buffer of the right size if
we can't do a put_unaligned_le24() directly.

> +
>  	if (cmd->size_out < sizeof(id))
>  		return -EINVAL;
>