Re: [PATCH v4 10/10] hw/cxl/mailbox: Use new UUID network order define for cel_uuid

[Fan Ni]

On Mon, Feb 06, 2023 at 05:28:16PM +0000, Jonathan Cameron wrote:
> From: Ira Weiny <ira.weiny@intel.com>
> 
> The cel_uuid was programatically generated previously because there was
> no static initializer for network order UUIDs.
> 
> Use the new network order initializer for cel_uuid.  Adjust
> cxl_initialize_mailbox() because it can't fail now.
> 
> Update specification reference.
> 
> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Reviewed-by: Gregory Price <gregory.price@memverge.com>
> Tested-by: Gregory Price <gregory.price@memverge.com>
> Signed-off-by: Ira Weiny <ira.weiny@intel.com>
> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> 

Reviewed-by: Fan Ni <fan.ni@samsung.com>

> ---
> v2:
> Make it const (Philippe)
> ---
>  hw/cxl/cxl-device-utils.c   |  2 +-
>  hw/cxl/cxl-mailbox-utils.c  | 13 ++++++-------
>  include/hw/cxl/cxl_device.h |  2 +-
>  3 files changed, 8 insertions(+), 9 deletions(-)
> 
> diff --git a/hw/cxl/cxl-device-utils.c b/hw/cxl/cxl-device-utils.c
> index 83ce7a8270..4c5e88aaf5 100644
> --- a/hw/cxl/cxl-device-utils.c
> +++ b/hw/cxl/cxl-device-utils.c
> @@ -267,5 +267,5 @@ void cxl_device_register_init_common(CXLDeviceState 
> *cxl_dstate)
>      cxl_device_cap_init(cxl_dstate, MEMORY_DEVICE, 0x4000);
>      memdev_reg_init_common(cxl_dstate);
>  
> -    assert(cxl_initialize_mailbox(cxl_dstate) == 0);
> +    cxl_initialize_mailbox(cxl_dstate);
>  }
> diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c
> index 3f67b665f5..206e04a4b8 100644
> --- a/hw/cxl/cxl-mailbox-utils.c
> +++ b/hw/cxl/cxl-mailbox-utils.c
> @@ -193,7 +193,11 @@ static ret_code cmd_timestamp_set(struct cxl_cmd *cmd,
>      return CXL_MBOX_SUCCESS;
>  }
>  
> -static QemuUUID cel_uuid;
> +/* CXL 3.0 8.2.9.5.2.1 Command Effects Log (CEL) */
> +static const QemuUUID cel_uuid = {
> +    .data = UUID(0x0da9c0b5, 0xbf41, 0x4b78, 0x8f, 0x79,
> +                 0x96, 0xb1, 0x62, 0x3b, 0x3f, 0x17)
> +};
>  
>  /* 8.2.9.4.1 */
>  static ret_code cmd_logs_get_supported(struct cxl_cmd *cmd,
> @@ -458,11 +462,8 @@ void cxl_process_mailbox(CXLDeviceState *cxl_dstate)
>                       DOORBELL, 0);
>  }
>  
> -int cxl_initialize_mailbox(CXLDeviceState *cxl_dstate)
> +void cxl_initialize_mailbox(CXLDeviceState *cxl_dstate)
>  {
> -    /* CXL 2.0: Table 169 Get Supported Logs Log Entry */
> -    const char *cel_uuidstr = "0da9c0b5-bf41-4b78-8f79-96b1623b3f17";
> -
>      for (int set = 0; set < 256; set++) {
>          for (int cmd = 0; cmd < 256; cmd++) {
>              if (cxl_cmd_set[set][cmd].handler) {
> @@ -476,6 +477,4 @@ int cxl_initialize_mailbox(CXLDeviceState *cxl_dstate)
>              }
>          }
>      }
> -
> -    return qemu_uuid_parse(cel_uuidstr, &cel_uuid);
>  }
> diff --git a/include/hw/cxl/cxl_device.h b/include/hw/cxl/cxl_device.h
> index 250adf18b2..7e5ad65c1d 100644
> --- a/include/hw/cxl/cxl_device.h
> +++ b/include/hw/cxl/cxl_device.h
> @@ -170,7 +170,7 @@ CXL_DEVICE_CAPABILITY_HEADER_REGISTER(MEMORY_DEVICE,
>                                        CXL_DEVICE_CAP_HDR1_OFFSET +
>                                            CXL_DEVICE_CAP_REG_SIZE * 2)
>  
> -int cxl_initialize_mailbox(CXLDeviceState *cxl_dstate);
> +void cxl_initialize_mailbox(CXLDeviceState *cxl_dstate);
>  void cxl_process_mailbox(CXLDeviceState *cxl_dstate);
>  
>  #define cxl_device_cap_init(dstate, reg, cap_id)                           \
> -- 
> 2.37.2
> 
>