50 	struct vio_ver_info pkt;  in send_version()  local
54 	memset(&pkt, 0, sizeof(pkt));  in send_version()
55 	init_tag(&pkt.tag, VIO_TYPE_CTRL, VIO_SUBTYPE_INFO, VIO_VER_INFO);  in send_version()
56 	pkt.major = major;  in send_version()
57 	pkt.minor = minor;  in send_version()
58 	pkt.dev_class = vio->dev_class;  in send_version()
63 	return send_ctrl(vio, &pkt.tag, sizeof(pkt));  in send_version()
163 	struct vio_msg_tag *pkt = arg;  in process_unknown()  local
166 	       pkt->type, pkt->stype, pkt->stype_env, pkt->sid);  in process_unknown()
180 		struct vio_dring_register pkt;  in send_dreg()  member
194 	init_tag(&u.pkt.tag, VIO_TYPE_CTRL, VIO_SUBTYPE_INFO, VIO_DRING_REG);  in send_dreg()
195 	u.pkt.dring_ident = 0;  in send_dreg()
196 	u.pkt.num_descr = dr->num_entries;  in send_dreg()
197 	u.pkt.descr_size = dr->entry_size;  in send_dreg()
198 	u.pkt.options = VIO_TX_DRING;  in send_dreg()
199 	u.pkt.num_cookies = dr->ncookies;  in send_dreg()
203 	       u.pkt.num_descr, u.pkt.descr_size, u.pkt.options,  in send_dreg()
204 	       u.pkt.num_cookies);  in send_dreg()
207 		u.pkt.cookies[i] = dr->cookies[i];  in send_dreg()
211 		       (unsigned long long) u.pkt.cookies[i].cookie_addr,  in send_dreg()
212 		       (unsigned long long) u.pkt.cookies[i].cookie_size);  in send_dreg()
215 	return send_ctrl(vio, &u.pkt.tag, bytes);  in send_dreg()
220 	struct vio_rdx pkt;  in send_rdx()  local
222 	memset(&pkt, 0, sizeof(pkt));  in send_rdx()
224 	init_tag(&pkt.tag, VIO_TYPE_CTRL, VIO_SUBTYPE_INFO, VIO_RDX);  in send_rdx()
228 	return send_ctrl(vio, &pkt.tag, sizeof(pkt));  in send_rdx()
256 			    struct vio_ver_info *pkt)  in process_ver_info()  argument
262 	       pkt->major, pkt->minor, pkt->dev_class);  in process_ver_info()
270 	vap = find_by_major(vio, pkt->major);  in process_ver_info()
272 	vio->_peer_sid = pkt->tag.sid;  in process_ver_info()
275 		pkt->tag.stype = VIO_SUBTYPE_NACK;  in process_ver_info()
276 		pkt->major = 0;  in process_ver_info()
277 		pkt->minor = 0;  in process_ver_info()
279 		err = send_ctrl(vio, &pkt->tag, sizeof(*pkt));  in process_ver_info()
280 	} else if (vap->major != pkt->major) {  in process_ver_info()
281 		pkt->tag.stype = VIO_SUBTYPE_NACK;  in process_ver_info()
282 		pkt->major = vap->major;  in process_ver_info()
283 		pkt->minor = vap->minor;  in process_ver_info()
285 		       pkt->major, pkt->minor);  in process_ver_info()
286 		err = send_ctrl(vio, &pkt->tag, sizeof(*pkt));  in process_ver_info()
289 			.major = pkt->major,  in process_ver_info()
290 			.minor = pkt->minor,  in process_ver_info()
294 		pkt->minor = ver.minor;  in process_ver_info()
295 		pkt->tag.stype = VIO_SUBTYPE_ACK;  in process_ver_info()
296 		pkt->dev_class = vio->dev_class;  in process_ver_info()
298 		       pkt->major, pkt->minor);  in process_ver_info()
299 		err = send_ctrl(vio, &pkt->tag, sizeof(*pkt));  in process_ver_info()
312 			   struct vio_ver_info *pkt)  in process_ver_ack()  argument
315 	       pkt->major, pkt->minor, pkt->dev_class);  in process_ver_ack()
318 		if (vio->ver.major != pkt->major ||  in process_ver_ack()
319 		    vio->ver.minor != pkt->minor) {  in process_ver_ack()
320 			pkt->tag.stype = VIO_SUBTYPE_NACK;  in process_ver_ack()
321 			(void) send_ctrl(vio, &pkt->tag, sizeof(*pkt));  in process_ver_ack()
325 		vio->ver.major = pkt->major;  in process_ver_ack()
326 		vio->ver.minor = pkt->minor;  in process_ver_ack()
345 			    struct vio_ver_info *pkt)  in process_ver_nack()  argument
350 	       pkt->major, pkt->minor, pkt->dev_class);  in process_ver_nack()
352 	if (pkt->major == 0 && pkt->minor == 0)  in process_ver_nack()
354 	nver = find_by_major(vio, pkt->major);  in process_ver_nack()
364 static int process_ver(struct vio_driver_state *vio, struct vio_ver_info *pkt)  in process_ver()  argument
366 	switch (pkt->tag.stype) {  in process_ver()
368 		return process_ver_info(vio, pkt);  in process_ver()
371 		return process_ver_ack(vio, pkt);  in process_ver()
374 		return process_ver_nack(vio, pkt);  in process_ver()
381 static int process_attr(struct vio_driver_state *vio, void *pkt)  in process_attr()  argument
391 	err = vio->ops->handle_attr(vio, pkt);  in process_attr()
428 			     struct vio_dring_register *pkt)  in process_dreg_info()  argument
435 	       (unsigned long long) pkt->dring_ident,  in process_dreg_info()
436 	       pkt->num_descr, pkt->descr_size, pkt->options,  in process_dreg_info()
437 	       pkt->num_cookies);  in process_dreg_info()
447 		if (!(pkt->options & VIO_TX_DRING))  in process_dreg_info()
449 		pkt->options = VIO_TX_DRING;  in process_dreg_info()
454 	vio->desc_buf = kzalloc(pkt->descr_size, GFP_ATOMIC);  in process_dreg_info()
458 	vio->desc_buf_len = pkt->descr_size;  in process_dreg_info()
462 	dr->num_entries = pkt->num_descr;  in process_dreg_info()
463 	dr->entry_size = pkt->descr_size;  in process_dreg_info()
464 	dr->ncookies = pkt->num_cookies;  in process_dreg_info()
466 		dr->cookies[i] = pkt->cookies[i];  in process_dreg_info()
471 		       pkt->cookies[i].cookie_addr,  in process_dreg_info()
473 		       pkt->cookies[i].cookie_size);  in process_dreg_info()
476 	pkt->tag.stype = VIO_SUBTYPE_ACK;  in process_dreg_info()
477 	pkt->dring_ident = ++dr->ident;  in process_dreg_info()
481 	       (unsigned long long) pkt->dring_ident,  in process_dreg_info()
482 	       pkt->num_descr, pkt->descr_size, pkt->options,  in process_dreg_info()
483 	       pkt->num_cookies);  in process_dreg_info()
485 	if (send_ctrl(vio, &pkt->tag, struct_size(pkt, cookies, dr->ncookies)) < 0)  in process_dreg_info()
493 	pkt->tag.stype = VIO_SUBTYPE_NACK;  in process_dreg_info()
495 	(void) send_ctrl(vio, &pkt->tag, sizeof(*pkt));  in process_dreg_info()
501 			    struct vio_dring_register *pkt)  in process_dreg_ack()  argument
507 	       (unsigned long long) pkt->dring_ident,  in process_dreg_ack()
508 	       pkt->num_descr, pkt->descr_size, pkt->options,  in process_dreg_ack()
509 	       pkt->num_cookies);  in process_dreg_ack()
516 	dr->ident = pkt->dring_ident;  in process_dreg_ack()
528 			     struct vio_dring_register *pkt)  in process_dreg_nack()  argument
532 	       (unsigned long long) pkt->dring_ident,  in process_dreg_nack()
533 	       pkt->num_descr, pkt->descr_size, pkt->options,  in process_dreg_nack()
534 	       pkt->num_cookies);  in process_dreg_nack()
540 			struct vio_dring_register *pkt)  in process_dreg()  argument
545 	switch (pkt->tag.stype) {  in process_dreg()
547 		return process_dreg_info(vio, pkt);  in process_dreg()
550 		return process_dreg_ack(vio, pkt);  in process_dreg()
553 		return process_dreg_nack(vio, pkt);  in process_dreg()
561 			  struct vio_dring_unregister *pkt)  in process_dunreg()  argument
567 	if (pkt->dring_ident != dr->ident)  in process_dunreg()
581 static int process_rdx_info(struct vio_driver_state *vio, struct vio_rdx *pkt)  in process_rdx_info()  argument
585 	pkt->tag.stype = VIO_SUBTYPE_ACK;  in process_rdx_info()
587 	if (send_ctrl(vio, &pkt->tag, sizeof(*pkt)) < 0)  in process_rdx_info()
594 static int process_rdx_ack(struct vio_driver_state *vio, struct vio_rdx *pkt)  in process_rdx_ack()  argument
605 static int process_rdx_nack(struct vio_driver_state *vio, struct vio_rdx *pkt)  in process_rdx_nack()  argument
612 static int process_rdx(struct vio_driver_state *vio, struct vio_rdx *pkt)  in process_rdx()  argument
617 	switch (pkt->tag.stype) {  in process_rdx()
619 		return process_rdx_info(vio, pkt);  in process_rdx()
622 		return process_rdx_ack(vio, pkt);  in process_rdx()
625 		return process_rdx_nack(vio, pkt);  in process_rdx()
632 int vio_control_pkt_engine(struct vio_driver_state *vio, void *pkt)  in vio_control_pkt_engine()  argument
634 	struct vio_msg_tag *tag = pkt;  in vio_control_pkt_engine()
640 		err = process_ver(vio, pkt);  in vio_control_pkt_engine()
644 		err = process_attr(vio, pkt);  in vio_control_pkt_engine()
648 		err = process_dreg(vio, pkt);  in vio_control_pkt_engine()
652 		err = process_dunreg(vio, pkt);  in vio_control_pkt_engine()
656 		err = process_rdx(vio, pkt);  in vio_control_pkt_engine()
660 		err = process_unknown(vio, pkt);  in vio_control_pkt_engine()