21 #include <mbox.h>
157 struct mbox {  struct
158 	struct otx2_mbox	mbox;  member
163 	void			*bbuf_base; /* Bounce buffer for mbox memory */  argument
165 	int			num_msgs; /* mbox number of messages */  argument
345 	/* Mbox */
346 	struct mbox		mbox;  member
347 	struct mbox		*mbox_pfvf;
495 /* Mbox bounce buffer APIs */
496 static inline int otx2_mbox_bbuf_init(struct mbox *mbox, struct pci_dev *pdev)  in otx2_mbox_bbuf_init()  argument
501 	mbox->bbuf_base = devm_kmalloc(&pdev->dev, MBOX_SIZE, GFP_KERNEL);  in otx2_mbox_bbuf_init()
502 	if (!mbox->bbuf_base)  in otx2_mbox_bbuf_init()
505 	/* Overwrite mbox mbase to point to bounce buffer, so that PF/VF  in otx2_mbox_bbuf_init()
506 	 * prepare all mbox messages in bounce buffer instead of directly  in otx2_mbox_bbuf_init()
507 	 * in hw mbox memory.  in otx2_mbox_bbuf_init()
509 	otx2_mbox = &mbox->mbox;  in otx2_mbox_bbuf_init()
511 	mdev->mbase = mbox->bbuf_base;  in otx2_mbox_bbuf_init()
513 	otx2_mbox = &mbox->mbox_up;  in otx2_mbox_bbuf_init()
515 	mdev->mbase = mbox->bbuf_base;  in otx2_mbox_bbuf_init()
519 static inline void otx2_sync_mbox_bbuf(struct otx2_mbox *mbox, int devid)  in otx2_sync_mbox_bbuf()  argument
522 	void *hw_mbase = mbox->hwbase + (devid * MBOX_SIZE);  in otx2_sync_mbox_bbuf()
523 	struct otx2_mbox_dev *mdev = &mbox->dev[devid];  in otx2_sync_mbox_bbuf()
530 	hdr = hw_mbase + mbox->rx_start;  in otx2_sync_mbox_bbuf()
533 	if (msg_size > mbox->rx_size - msgs_offset)  in otx2_sync_mbox_bbuf()
534 		msg_size = mbox->rx_size - msgs_offset;  in otx2_sync_mbox_bbuf()
536 	/* Copy mbox messages from mbox memory to bounce buffer */  in otx2_sync_mbox_bbuf()
537 	memcpy(mdev->mbase + mbox->rx_start,  in otx2_sync_mbox_bbuf()
538 	       hw_mbase + mbox->rx_start, msg_size + msgs_offset);  in otx2_sync_mbox_bbuf()
637 /* Mbox APIs */
638 static inline int otx2_sync_mbox_msg(struct mbox *mbox)  in otx2_sync_mbox_msg()  argument
642 	if (!otx2_mbox_nonempty(&mbox->mbox, 0))  in otx2_sync_mbox_msg()
644 	otx2_mbox_msg_send(&mbox->mbox, 0);  in otx2_sync_mbox_msg()
645 	err = otx2_mbox_wait_for_rsp(&mbox->mbox, 0);  in otx2_sync_mbox_msg()
649 	return otx2_mbox_check_rsp_msgs(&mbox->mbox, 0);  in otx2_sync_mbox_msg()
652 static inline int otx2_sync_mbox_up_msg(struct mbox *mbox, int devid)  in otx2_sync_mbox_up_msg()  argument
656 	if (!otx2_mbox_nonempty(&mbox->mbox_up, devid))  in otx2_sync_mbox_up_msg()
658 	otx2_mbox_msg_send(&mbox->mbox_up, devid);  in otx2_sync_mbox_up_msg()
659 	err = otx2_mbox_wait_for_rsp(&mbox->mbox_up, devid);  in otx2_sync_mbox_up_msg()
663 	return otx2_mbox_check_rsp_msgs(&mbox->mbox_up, devid);  in otx2_sync_mbox_up_msg()
666 /* Use this API to send mbox msgs in atomic context
669 static inline int otx2_sync_mbox_msg_busy_poll(struct mbox *mbox)  in otx2_sync_mbox_msg_busy_poll()  argument
673 	if (!otx2_mbox_nonempty(&mbox->mbox, 0))  in otx2_sync_mbox_msg_busy_poll()
675 	otx2_mbox_msg_send(&mbox->mbox, 0);  in otx2_sync_mbox_msg_busy_poll()
676 	err = otx2_mbox_busy_poll_for_rsp(&mbox->mbox, 0);  in otx2_sync_mbox_msg_busy_poll()
680 	return otx2_mbox_check_rsp_msgs(&mbox->mbox, 0);  in otx2_sync_mbox_msg_busy_poll()
685 *otx2_mbox_alloc_msg_ ## _fn_name(struct mbox *mbox)                    \
690 		&mbox->mbox, 0, sizeof(struct _req_type),		\
696 	trace_otx2_msg_alloc(mbox->mbox.pdev, _id, sizeof(*req));	\
765 int otx2_detach_resources(struct mbox *mbox);
781 void otx2_ctx_disable(struct mbox *mbox, int type, bool npa);
796 /* Mbox handlers */