Memory Sharing Interface

Prototype	int wd_share_reserved_memory(struct wd_queue q, struct wd_queue target_q);
Function	Share the memory reserved in q to target_q, so that target_q can access the DMA memory of q.
Input Description	q: source queue target_q: target queue
Output Description	None
Return Value Description	0: success Others: failure
Usage Instruction	target_q does not have its own DMA memory, and this function can be invoked by target_q only once.
Precautions	In the SVA scenario, the function of this interface is unavailable.

Parent topic: WD Data Storage Formats and Memory Interfaces