1 // SPDX-License-Identifier: GPL-2.0
3 /* Copyright (c) 2013-2018, The Linux Foundation. All rights reserved.
4  * Copyright (C) 2018-2022 Linaro Ltd.
24  * both sides know when everything is ready to begin operating.  The AP
53  * - Whenever the AP learns the modem has booted and its IPA QMI service
56  * - On the initial boot, the modem sets up the IPA microcontroller, and
58  * - When the modem is ready to receive an INIT_COMPLETE indication from
60  * - On the initial modem boot, everything is ready when:
61  *	- AP has received a success response from its INIT_DRIVER request
62  *	- AP has responded to a DRIVER_INIT_COMPLETE request
63  *	- AP has responded to an INDICATION_REGISTER request from the modem
64  *	- AP has sent an INIT_COMPLETE indication to the modem
65  * - On subsequent modem boots, everything is ready when:
66  *	- AP has received a success response from its INIT_DRIVER request
67  *	- AP has responded to a DRIVER_INIT_COMPLETE request
68  * - The INDICATION_REGISTER request and INIT_COMPLETE indication are
69  *   optional for non-initial modem boots, and have no bearing on the
87 	struct qmi_handle *qmi = &ipa_qmi->server_handle;  in ipa_server_init_complete()
88 	struct sockaddr_qrtr *sq = &ipa_qmi->modem_sq;  in ipa_server_init_complete()
99 		dev_err(&ipa->pdev->dev,  in ipa_server_init_complete()
101 	else  in ipa_server_init_complete()
102 		ipa_qmi->indication_sent = true;  in ipa_server_init_complete()
108 	if (!ipa_qmi->indication_requested)  in ipa_qmi_indication()
111 	if (ipa_qmi->indication_sent)  in ipa_qmi_indication()
117 /* Determine whether everything is ready to start normal operation.
118  * We know everything (else) is ready when we know the IPA driver on
124  * initial boot, non-zero (true) for a subsequent (SSR) boot.
132 	if (!ipa_qmi->modem_ready || !ipa_qmi->uc_ready)  in ipa_qmi_ready()
139 	if (ipa_qmi->initial_boot) {  in ipa_qmi_ready()
140 		if (!ipa_qmi->indication_sent)  in ipa_qmi_ready()
144 		ipa_qmi->initial_boot = false;  in ipa_qmi_ready()
151 		dev_err(&ipa->pdev->dev, "error %d starting modem\n", ret);  in ipa_qmi_ready()
162 	memset(&ipa_qmi->modem_sq, 0, sizeof(ipa_qmi->modem_sq));  in ipa_server_bye()
166 	ipa_qmi->modem_ready = false;  in ipa_server_bye()
167 	ipa_qmi->indication_requested = false;  in ipa_server_bye()
168 	ipa_qmi->indication_sent = false;  in ipa_server_bye()
199 		ipa_qmi->indication_requested = true;  in ipa_server_indication_register()
201 	} else {  in ipa_server_indication_register()
202 		dev_err(&ipa->pdev->dev,  in ipa_server_indication_register()
228 		ipa_qmi->uc_ready = true;  in ipa_server_driver_init_complete()
230 	} else {  in ipa_server_driver_init_complete()
231 		dev_err(&ipa->pdev->dev,  in ipa_server_driver_init_complete()
260 	txn->result = 0;	/* IPA_QMI_INIT_DRIVER request was successful */  in ipa_client_init_driver()
261 	complete(&txn->completion);  in ipa_client_init_driver()
287 	u32 modem_route_count = ipa->modem_route_count;  in init_modem_driver_req()
293 	req.skip_uc_load = ipa->uc_loaded ? 1 : 0;  in init_modem_driver_req()
303 	if (mem->size) {  in init_modem_driver_req()
305 		req.hdr_tbl_info.start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
306 		req.hdr_tbl_info.end = req.hdr_tbl_info.start + mem->size - 1;  in init_modem_driver_req()
311 	req.v4_route_tbl_info.start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
312 	req.v4_route_tbl_info.end = modem_route_count - 1;  in init_modem_driver_req()
316 	req.v6_route_tbl_info.start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
317 	req.v6_route_tbl_info.end = modem_route_count - 1;  in init_modem_driver_req()
321 	req.v4_filter_tbl_start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
325 	req.v6_filter_tbl_start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
328 	if (mem->size) {  in init_modem_driver_req()
330 		req.modem_mem_info.start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
331 		req.modem_mem_info.size = mem->size;  in init_modem_driver_req()
336 		ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]->endpoint_id;  in init_modem_driver_req()
341 	if (mem->size) {  in init_modem_driver_req()
344 			ipa->mem_offset + mem->offset;  in init_modem_driver_req()
346 			req.hdr_proc_ctx_tbl_info.start + mem->size - 1;  in init_modem_driver_req()
352 	if (mem->size) {  in init_modem_driver_req()
355 				ipa->mem_offset + mem->offset;  in init_modem_driver_req()
356 		req.v4_hash_route_tbl_info.end = modem_route_count - 1;  in init_modem_driver_req()
360 	if (mem->size) {  in init_modem_driver_req()
363 			ipa->mem_offset + mem->offset;  in init_modem_driver_req()
364 		req.v6_hash_route_tbl_info.end = modem_route_count - 1;  in init_modem_driver_req()
368 	if (mem->size) {  in init_modem_driver_req()
370 		req.v4_hash_filter_tbl_start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
374 	if (mem->size) {  in init_modem_driver_req()
376 		req.v6_hash_filter_tbl_start = ipa->mem_offset + mem->offset;  in init_modem_driver_req()
380 	if (ipa->version >= IPA_VERSION_4_0) {  in init_modem_driver_req()
382 		if (mem->size) {  in init_modem_driver_req()
385 				ipa->mem_offset + mem->offset;  in init_modem_driver_req()
387 			req.hw_stats_quota_size = ipa->mem_offset + mem->size;  in init_modem_driver_req()
392 		if (mem && mem->size) {  in init_modem_driver_req()
395 				ipa->mem_offset + mem->offset;  in init_modem_driver_req()
397 			req.hw_stats_drop_size = ipa->mem_offset + mem->size;  in init_modem_driver_req()
417 	qmi = &ipa_qmi->client_handle;  in ipa_client_init_driver_work()
420 	dev = &ipa->pdev->dev;  in ipa_client_init_driver_work()
430 	ret = qmi_send_request(qmi, &ipa_qmi->modem_sq, &txn,  in ipa_client_init_driver_work()
435 	else if ((ret = qmi_txn_wait(&txn, timeout)))  in ipa_client_init_driver_work()
439 		ipa_qmi->modem_ready = true;  in ipa_client_init_driver_work()
441 	} else {  in ipa_client_init_driver_work()
458 	ipa_qmi->modem_sq.sq_family = AF_QIPCRTR;  in ipa_client_new_server()
459 	ipa_qmi->modem_sq.sq_node = svc->node;  in ipa_client_new_server()
460 	ipa_qmi->modem_sq.sq_port = svc->port;  in ipa_client_new_server()
462 	schedule_work(&ipa_qmi->init_driver_work);  in ipa_client_new_server()
474 	struct ipa_qmi *ipa_qmi = &ipa->qmi;  in ipa_qmi_setup()
477 	ipa_qmi->initial_boot = true;  in ipa_qmi_setup()
485 	ret = qmi_handle_init(&ipa_qmi->server_handle,  in ipa_qmi_setup()
491 	ret = qmi_add_server(&ipa_qmi->server_handle, IPA_HOST_SERVICE_SVC_ID,  in ipa_qmi_setup()
499 	ret = qmi_handle_init(&ipa_qmi->client_handle,  in ipa_qmi_setup()
506 	INIT_WORK(&ipa_qmi->init_driver_work, ipa_client_init_driver_work);  in ipa_qmi_setup()
508 	ret = qmi_add_lookup(&ipa_qmi->client_handle, IPA_MODEM_SERVICE_SVC_ID,  in ipa_qmi_setup()
517 	qmi_handle_release(&ipa_qmi->client_handle);  in ipa_qmi_setup()
518 	memset(&ipa_qmi->client_handle, 0, sizeof(ipa_qmi->client_handle));  in ipa_qmi_setup()
521 	qmi_handle_release(&ipa_qmi->server_handle);  in ipa_qmi_setup()
522 	memset(&ipa_qmi->server_handle, 0, sizeof(ipa_qmi->server_handle));  in ipa_qmi_setup()
530 	cancel_work_sync(&ipa->qmi.init_driver_work);  in ipa_qmi_teardown()
532 	qmi_handle_release(&ipa->qmi.client_handle);  in ipa_qmi_teardown()
533 	memset(&ipa->qmi.client_handle, 0, sizeof(ipa->qmi.client_handle));  in ipa_qmi_teardown()
535 	qmi_handle_release(&ipa->qmi.server_handle);  in ipa_qmi_teardown()
536 	memset(&ipa->qmi.server_handle, 0, sizeof(ipa->qmi.server_handle));  in ipa_qmi_teardown()