1 // SPDX-License-Identifier: GPL-2.0
3 /* Copyright (c) 2013-2018, The Linux Foundation. All rights reserved.
4  * Copyright (C) 2018-2024 Linaro Ltd.
20  * both sides know when everything is ready to begin operating.  The AP
49  * - Whenever the AP learns the modem has booted and its IPA QMI service
52  * - On the initial boot, the modem sets up the IPA microcontroller, and
54  * - When the modem is ready to receive an INIT_COMPLETE indication from
56  * - On the initial modem boot, everything is ready when:
57  *	- AP has received a success response from its INIT_DRIVER request
58  *	- AP has responded to a DRIVER_INIT_COMPLETE request
59  *	- AP has responded to an INDICATION_REGISTER request from the modem
60  *	- AP has sent an INIT_COMPLETE indication to the modem
61  * - On subsequent modem boots, everything is ready when:
62  *	- AP has received a success response from its INIT_DRIVER request
63  *	- AP has responded to a DRIVER_INIT_COMPLETE request
64  * - The INDICATION_REGISTER request and INIT_COMPLETE indication are
65  *   optional for non-initial modem boots, and have no bearing on the
83 	struct qmi_handle *qmi = &ipa_qmi->server_handle;  in ipa_server_init_complete()
84 	struct sockaddr_qrtr *sq = &ipa_qmi->modem_sq;  in ipa_server_init_complete()
95 		dev_err(ipa->dev,  in ipa_server_init_complete()
97 	else  in ipa_server_init_complete()
98 		ipa_qmi->indication_sent = true;  in ipa_server_init_complete()
104 	if (!ipa_qmi->indication_requested)  in ipa_qmi_indication()
107 	if (ipa_qmi->indication_sent)  in ipa_qmi_indication()
113 /* Determine whether everything is ready to start normal operation.
114  * We know everything (else) is ready when we know the IPA driver on
120  * initial boot, non-zero (true) for a subsequent (SSR) boot.
128 	if (!ipa_qmi->modem_ready || !ipa_qmi->uc_ready)  in ipa_qmi_ready()
135 	if (ipa_qmi->initial_boot) {  in ipa_qmi_ready()
136 		if (!ipa_qmi->indication_sent)  in ipa_qmi_ready()
140 		ipa_qmi->initial_boot = false;  in ipa_qmi_ready()
147 		dev_err(ipa->dev, "error %d starting modem\n", ret);  in ipa_qmi_ready()
158 	memset(&ipa_qmi->modem_sq, 0, sizeof(ipa_qmi->modem_sq));  in ipa_server_bye()
162 	ipa_qmi->modem_ready = false;  in ipa_server_bye()
163 	ipa_qmi->indication_requested = false;  in ipa_server_bye()
164 	ipa_qmi->indication_sent = false;  in ipa_server_bye()
195 		ipa_qmi->indication_requested = true;  in ipa_server_indication_register()
197 	} else {  in ipa_server_indication_register()
198 		dev_err(ipa->dev,  in ipa_server_indication_register()
224 		ipa_qmi->uc_ready = true;  in ipa_server_driver_init_complete()
226 	} else {  in ipa_server_driver_init_complete()
227 		dev_err(ipa->dev,  in ipa_server_driver_init_complete()
256 	txn->result = 0;	/* IPA_QMI_INIT_DRIVER request was successful */  in ipa_client_init_driver()
257 	complete(&txn->completion);  in ipa_client_init_driver()
283 	u32 modem_route_count = ipa->modem_route_count;  in init_modem_driver_req()
289 	req.skip_uc_load = ipa->uc_loaded ? 1 : 0;  in init_modem_driver_req()
299 	if (mem->size) {  in init_modem_driver_req()
301 		req.hdr_tbl_info.start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
302 		req.hdr_tbl_info.end = req.hdr_tbl_info.start + mem->size - 1;  in init_modem_driver_req()
307 	req.v4_route_tbl_info.start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
308 	req.v4_route_tbl_info.end = modem_route_count - 1;  in init_modem_driver_req()
312 	req.v6_route_tbl_info.start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
313 	req.v6_route_tbl_info.end = modem_route_count - 1;  in init_modem_driver_req()
317 	req.v4_filter_tbl_start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
321 	req.v6_filter_tbl_start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
324 	if (mem->size) {  in init_modem_driver_req()
326 		req.modem_mem_info.start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
327 		req.modem_mem_info.size = mem->size;  in init_modem_driver_req()
332 		ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]->endpoint_id;  in init_modem_driver_req()
337 	if (mem->size) {  in init_modem_driver_req()
340 			ipa->mem_offset + mem->offset;  in init_modem_driver_req()
342 			req.hdr_proc_ctx_tbl_info.start + mem->size - 1;  in init_modem_driver_req()
348 	if (mem->size) {  in init_modem_driver_req()
351 				ipa->mem_offset + mem->offset;  in init_modem_driver_req()
352 		req.v4_hash_route_tbl_info.end = modem_route_count - 1;  in init_modem_driver_req()
356 	if (mem->size) {  in init_modem_driver_req()
359 			ipa->mem_offset + mem->offset;  in init_modem_driver_req()
360 		req.v6_hash_route_tbl_info.end = modem_route_count - 1;  in init_modem_driver_req()
364 	if (mem->size) {  in init_modem_driver_req()
366 		req.v4_hash_filter_tbl_start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
370 	if (mem->size) {  in init_modem_driver_req()
372 		req.v6_hash_filter_tbl_start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
376 	if (ipa->version >= IPA_VERSION_4_0) {  in init_modem_driver_req()
378 		if (mem->size) {  in init_modem_driver_req()
381 				ipa->mem_offset + mem->offset;  in init_modem_driver_req()
383 			req.hw_stats_quota_size = ipa->mem_offset + mem->size;  in init_modem_driver_req()
388 		if (mem && mem->size) {  in init_modem_driver_req()
391 				ipa->mem_offset + mem->offset;  in init_modem_driver_req()
393 			req.hw_stats_drop_size = ipa->mem_offset + mem->size;  in init_modem_driver_req()
413 	qmi = &ipa_qmi->client_handle;  in ipa_client_init_driver_work()
416 	dev = ipa->dev;  in ipa_client_init_driver_work()
426 	ret = qmi_send_request(qmi, &ipa_qmi->modem_sq, &txn,  in ipa_client_init_driver_work()
431 	else if ((ret = qmi_txn_wait(&txn, timeout)))  in ipa_client_init_driver_work()
435 		ipa_qmi->modem_ready = true;  in ipa_client_init_driver_work()
437 	} else {  in ipa_client_init_driver_work()
454 	ipa_qmi->modem_sq.sq_family = AF_QIPCRTR;  in ipa_client_new_server()
455 	ipa_qmi->modem_sq.sq_node = svc->node;  in ipa_client_new_server()
456 	ipa_qmi->modem_sq.sq_port = svc->port;  in ipa_client_new_server()
458 	schedule_work(&ipa_qmi->init_driver_work);  in ipa_client_new_server()
470 	struct ipa_qmi *ipa_qmi = &ipa->qmi;  in ipa_qmi_setup()
473 	ipa_qmi->initial_boot = true;  in ipa_qmi_setup()
481 	ret = qmi_handle_init(&ipa_qmi->server_handle,  in ipa_qmi_setup()
487 	ret = qmi_add_server(&ipa_qmi->server_handle, IPA_HOST_SERVICE_SVC_ID,  in ipa_qmi_setup()
495 	ret = qmi_handle_init(&ipa_qmi->client_handle,  in ipa_qmi_setup()
502 	INIT_WORK(&ipa_qmi->init_driver_work, ipa_client_init_driver_work);  in ipa_qmi_setup()
504 	ret = qmi_add_lookup(&ipa_qmi->client_handle, IPA_MODEM_SERVICE_SVC_ID,  in ipa_qmi_setup()
513 	qmi_handle_release(&ipa_qmi->client_handle);  in ipa_qmi_setup()
514 	memset(&ipa_qmi->client_handle, 0, sizeof(ipa_qmi->client_handle));  in ipa_qmi_setup()
517 	qmi_handle_release(&ipa_qmi->server_handle);  in ipa_qmi_setup()
518 	memset(&ipa_qmi->server_handle, 0, sizeof(ipa_qmi->server_handle));  in ipa_qmi_setup()
526 	cancel_work_sync(&ipa->qmi.init_driver_work);  in ipa_qmi_teardown()
528 	qmi_handle_release(&ipa->qmi.client_handle);  in ipa_qmi_teardown()
529 	memset(&ipa->qmi.client_handle, 0, sizeof(ipa->qmi.client_handle));  in ipa_qmi_teardown()
531 	qmi_handle_release(&ipa->qmi.server_handle);  in ipa_qmi_teardown()
532 	memset(&ipa->qmi.server_handle, 0, sizeof(ipa->qmi.server_handle));  in ipa_qmi_teardown()