|
Server : nginx/1.24.0 System : Linux ip-172-31-33-48 6.14.0-1011-aws #11~24.04.1-Ubuntu SMP Fri Aug 1 02:07:25 UTC 2025 x86_64 User : www-data ( 33) PHP Version : 8.3.6 Disable Function : NONE Directory : /usr/src/linux-headers-6.14.0-1011-aws/include/cxl/ |
Upload File : |
/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright(c) 2024 Intel Corporation. */
#ifndef __CXL_MBOX_H__
#define __CXL_MBOX_H__
#include <linux/rcuwait.h>
struct cxl_mbox_cmd;
/**
* struct cxl_mailbox - context for CXL mailbox operations
* @host: device that hosts the mailbox
* @payload_size: Size of space for payload
* (CXL 3.1 8.2.8.4.3 Mailbox Capabilities Register)
* @mbox_mutex: mutex protects device mailbox and firmware
* @mbox_wait: rcuwait for mailbox
* @mbox_send: @dev specific transport for transmitting mailbox commands
*/
struct cxl_mailbox {
struct device *host;
size_t payload_size;
struct mutex mbox_mutex; /* lock to protect mailbox context */
struct rcuwait mbox_wait;
int (*mbox_send)(struct cxl_mailbox *cxl_mbox, struct cxl_mbox_cmd *cmd);
};
int cxl_mailbox_init(struct cxl_mailbox *cxl_mbox, struct device *host);
#endif