48 	struct vio_ver_info pkt;  in send_version()  local
52 	memset(&pkt, 0, sizeof(pkt));  in send_version()
53 	init_tag(&pkt.tag, VIO_TYPE_CTRL, VIO_SUBTYPE_INFO, VIO_VER_INFO);  in send_version()
54 	pkt.major = major;  in send_version()
55 	pkt.minor = minor;  in send_version()
56 	pkt.dev_class = vio->dev_class;  in send_version()
61 	return send_ctrl(vio, &pkt.tag, sizeof(pkt));  in send_version()
161 	struct vio_msg_tag *pkt = arg;  in process_unknown()  local
164 	       pkt->type, pkt->stype, pkt->stype_env, pkt->sid);  in process_unknown()
178 		struct vio_dring_register pkt;  in send_dreg()  member
186 	init_tag(&u.pkt.tag, VIO_TYPE_CTRL, VIO_SUBTYPE_INFO, VIO_DRING_REG);  in send_dreg()
187 	u.pkt.dring_ident = 0;  in send_dreg()
188 	u.pkt.num_descr = dr->num_entries;  in send_dreg()
189 	u.pkt.descr_size = dr->entry_size;  in send_dreg()
190 	u.pkt.options = VIO_TX_DRING;  in send_dreg()
191 	u.pkt.num_cookies = dr->ncookies;  in send_dreg()
195 	       u.pkt.num_descr, u.pkt.descr_size, u.pkt.options,  in send_dreg()
196 	       u.pkt.num_cookies);  in send_dreg()
199 		u.pkt.cookies[i] = dr->cookies[i];  in send_dreg()
203 		       (unsigned long long) u.pkt.cookies[i].cookie_addr,  in send_dreg()
204 		       (unsigned long long) u.pkt.cookies[i].cookie_size);  in send_dreg()
207 	return send_ctrl(vio, &u.pkt.tag, sizeof(u));  in send_dreg()
212 	struct vio_rdx pkt;  in send_rdx()  local
214 	memset(&pkt, 0, sizeof(pkt));  in send_rdx()
216 	init_tag(&pkt.tag, VIO_TYPE_CTRL, VIO_SUBTYPE_INFO, VIO_RDX);  in send_rdx()
220 	return send_ctrl(vio, &pkt.tag, sizeof(pkt));  in send_rdx()
245 			    struct vio_ver_info *pkt)  in process_ver_info()  argument
251 	       pkt->major, pkt->minor, pkt->dev_class);  in process_ver_info()
259 	vap = find_by_major(vio, pkt->major);  in process_ver_info()
261 	vio->_peer_sid = pkt->tag.sid;  in process_ver_info()
264 		pkt->tag.stype = VIO_SUBTYPE_NACK;  in process_ver_info()
265 		pkt->major = 0;  in process_ver_info()
266 		pkt->minor = 0;  in process_ver_info()
268 		err = send_ctrl(vio, &pkt->tag, sizeof(*pkt));  in process_ver_info()
269 	} else if (vap->major != pkt->major) {  in process_ver_info()
270 		pkt->tag.stype = VIO_SUBTYPE_NACK;  in process_ver_info()
271 		pkt->major = vap->major;  in process_ver_info()
272 		pkt->minor = vap->minor;  in process_ver_info()
274 		       pkt->major, pkt->minor);  in process_ver_info()
275 		err = send_ctrl(vio, &pkt->tag, sizeof(*pkt));  in process_ver_info()
278 			.major = pkt->major,  in process_ver_info()
279 			.minor = pkt->minor,  in process_ver_info()
283 		pkt->minor = ver.minor;  in process_ver_info()
284 		pkt->tag.stype = VIO_SUBTYPE_ACK;  in process_ver_info()
286 		       pkt->major, pkt->minor);  in process_ver_info()
287 		err = send_ctrl(vio, &pkt->tag, sizeof(*pkt));  in process_ver_info()
300 			   struct vio_ver_info *pkt)  in process_ver_ack()  argument
303 	       pkt->major, pkt->minor, pkt->dev_class);  in process_ver_ack()
306 		if (vio->ver.major != pkt->major ||  in process_ver_ack()
307 		    vio->ver.minor != pkt->minor) {  in process_ver_ack()
308 			pkt->tag.stype = VIO_SUBTYPE_NACK;  in process_ver_ack()
309 			(void) send_ctrl(vio, &pkt->tag, sizeof(*pkt));  in process_ver_ack()
313 		vio->ver.major = pkt->major;  in process_ver_ack()
314 		vio->ver.minor = pkt->minor;  in process_ver_ack()
333 			    struct vio_ver_info *pkt)  in process_ver_nack()  argument
338 	       pkt->major, pkt->minor, pkt->dev_class);  in process_ver_nack()
340 	if (pkt->major == 0 && pkt->minor == 0)  in process_ver_nack()
342 	nver = find_by_major(vio, pkt->major);  in process_ver_nack()
352 static int process_ver(struct vio_driver_state *vio, struct vio_ver_info *pkt)  in process_ver()  argument
354 	switch (pkt->tag.stype) {  in process_ver()
356 		return process_ver_info(vio, pkt);  in process_ver()
359 		return process_ver_ack(vio, pkt);  in process_ver()
362 		return process_ver_nack(vio, pkt);  in process_ver()
369 static int process_attr(struct vio_driver_state *vio, void *pkt)  in process_attr()  argument
376 	err = vio->ops->handle_attr(vio, pkt);  in process_attr()
412 			     struct vio_dring_register *pkt)  in process_dreg_info()  argument
419 	       (unsigned long long) pkt->dring_ident,  in process_dreg_info()
420 	       pkt->num_descr, pkt->descr_size, pkt->options,  in process_dreg_info()
421 	       pkt->num_cookies);  in process_dreg_info()
431 		if (!(pkt->options & VIO_TX_DRING))  in process_dreg_info()
433 		pkt->options = VIO_TX_DRING;  in process_dreg_info()
438 	vio->desc_buf = kzalloc(pkt->descr_size, GFP_ATOMIC);  in process_dreg_info()
442 	vio->desc_buf_len = pkt->descr_size;  in process_dreg_info()
446 	dr->num_entries = pkt->num_descr;  in process_dreg_info()
447 	dr->entry_size = pkt->descr_size;  in process_dreg_info()
448 	dr->ncookies = pkt->num_cookies;  in process_dreg_info()
450 		dr->cookies[i] = pkt->cookies[i];  in process_dreg_info()
455 		       pkt->cookies[i].cookie_addr,  in process_dreg_info()
457 		       pkt->cookies[i].cookie_size);  in process_dreg_info()
460 	pkt->tag.stype = VIO_SUBTYPE_ACK;  in process_dreg_info()
461 	pkt->dring_ident = ++dr->ident;  in process_dreg_info()
465 	       (unsigned long long) pkt->dring_ident,  in process_dreg_info()
466 	       pkt->num_descr, pkt->descr_size, pkt->options,  in process_dreg_info()
467 	       pkt->num_cookies);  in process_dreg_info()
469 	len = (sizeof(*pkt) +  in process_dreg_info()
471 	if (send_ctrl(vio, &pkt->tag, len) < 0)  in process_dreg_info()
479 	pkt->tag.stype = VIO_SUBTYPE_NACK;  in process_dreg_info()
481 	(void) send_ctrl(vio, &pkt->tag, sizeof(*pkt));  in process_dreg_info()
487 			    struct vio_dring_register *pkt)  in process_dreg_ack()  argument
493 	       (unsigned long long) pkt->dring_ident,  in process_dreg_ack()
494 	       pkt->num_descr, pkt->descr_size, pkt->options,  in process_dreg_ack()
495 	       pkt->num_cookies);  in process_dreg_ack()
502 	dr->ident = pkt->dring_ident;  in process_dreg_ack()
514 			     struct vio_dring_register *pkt)  in process_dreg_nack()  argument
518 	       (unsigned long long) pkt->dring_ident,  in process_dreg_nack()
519 	       pkt->num_descr, pkt->descr_size, pkt->options,  in process_dreg_nack()
520 	       pkt->num_cookies);  in process_dreg_nack()
526 			struct vio_dring_register *pkt)  in process_dreg()  argument
531 	switch (pkt->tag.stype) {  in process_dreg()
533 		return process_dreg_info(vio, pkt);  in process_dreg()
536 		return process_dreg_ack(vio, pkt);  in process_dreg()
539 		return process_dreg_nack(vio, pkt);  in process_dreg()
547 			  struct vio_dring_unregister *pkt)  in process_dunreg()  argument
553 	if (pkt->dring_ident != dr->ident)  in process_dunreg()
567 static int process_rdx_info(struct vio_driver_state *vio, struct vio_rdx *pkt)  in process_rdx_info()  argument
571 	pkt->tag.stype = VIO_SUBTYPE_ACK;  in process_rdx_info()
573 	if (send_ctrl(vio, &pkt->tag, sizeof(*pkt)) < 0)  in process_rdx_info()
580 static int process_rdx_ack(struct vio_driver_state *vio, struct vio_rdx *pkt)  in process_rdx_ack()  argument
591 static int process_rdx_nack(struct vio_driver_state *vio, struct vio_rdx *pkt)  in process_rdx_nack()  argument
598 static int process_rdx(struct vio_driver_state *vio, struct vio_rdx *pkt)  in process_rdx()  argument
603 	switch (pkt->tag.stype) {  in process_rdx()
605 		return process_rdx_info(vio, pkt);  in process_rdx()
608 		return process_rdx_ack(vio, pkt);  in process_rdx()
611 		return process_rdx_nack(vio, pkt);  in process_rdx()
618 int vio_control_pkt_engine(struct vio_driver_state *vio, void *pkt)  in vio_control_pkt_engine()  argument
620 	struct vio_msg_tag *tag = pkt;  in vio_control_pkt_engine()
626 		err = process_ver(vio, pkt);  in vio_control_pkt_engine()
630 		err = process_attr(vio, pkt);  in vio_control_pkt_engine()
634 		err = process_dreg(vio, pkt);  in vio_control_pkt_engine()
638 		err = process_dunreg(vio, pkt);  in vio_control_pkt_engine()
642 		err = process_rdx(vio, pkt);  in vio_control_pkt_engine()
646 		err = process_unknown(vio, pkt);  in vio_control_pkt_engine()