3  * Copyright (c) 2006 - 2013 Broadcom Corporation
14  * Maintained by: QLogic-Storage-Upstream@qlogic.com
74  * bnx2i_identify_device - identifies NetXtreme II device type
84 	hba->cnic_dev_type = 0;  in bnx2i_identify_device()
85 	if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {  in bnx2i_identify_device()
86 		if (hba->pci_did == PCI_DEVICE_ID_NX2_5706 ||  in bnx2i_identify_device()
87 		    hba->pci_did == PCI_DEVICE_ID_NX2_5706S) {  in bnx2i_identify_device()
88 			set_bit(BNX2I_NX2_DEV_5706, &hba->cnic_dev_type);  in bnx2i_identify_device()
89 		} else if (hba->pci_did == PCI_DEVICE_ID_NX2_5708 ||  in bnx2i_identify_device()
90 		    hba->pci_did == PCI_DEVICE_ID_NX2_5708S) {  in bnx2i_identify_device()
91 			set_bit(BNX2I_NX2_DEV_5708, &hba->cnic_dev_type);  in bnx2i_identify_device()
92 		} else if (hba->pci_did == PCI_DEVICE_ID_NX2_5709 ||  in bnx2i_identify_device()
93 		    hba->pci_did == PCI_DEVICE_ID_NX2_5709S) {  in bnx2i_identify_device()
94 			set_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type);  in bnx2i_identify_device()
95 			hba->mail_queue_access = BNX2I_MQ_BIN_MODE;  in bnx2i_identify_device()
97 	} else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {  in bnx2i_identify_device()
98 		set_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type);  in bnx2i_identify_device()
101 				  hba->pci_did);  in bnx2i_identify_device()
107  * get_adapter_list_head - returns head of adapter list
119 		if (tmp_hba->cnic && tmp_hba->cnic->cm_select_dev) {  in get_adapter_list_head()
131  * bnx2i_find_hba_for_cnic - maps cnic device instance to bnx2i adapter instance
132  * @cnic:	pointer to cnic device instance
141 		if (hba->cnic == cnic) {  in bnx2i_find_hba_for_cnic()
152  * bnx2i_start - cnic callback to initialize & start adapter instance
157  * 	This bnx2i - cnic interface api callback is issued after following
158  *	2 conditions are met -
161  *	  b) bnx2i adapter instance is registered
175 	while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) &&  in bnx2i_start()
176 	       !test_bit(ADAPTER_STATE_INIT_FAILED, &hba->adapter_state) && i--)  in bnx2i_start()
182  * bnx2i_chip_cleanup - local routine to handle chip cleanup
183  * @hba:	Adapter instance to register
193 	if (hba->ofld_conns_active) {  in bnx2i_chip_cleanup()
199 			"connections\n", hba->netdev->name,  in bnx2i_chip_cleanup()
200 			hba->ofld_conns_active);  in bnx2i_chip_cleanup()
201 		mutex_lock(&hba->net_dev_lock);  in bnx2i_chip_cleanup()
202 		list_for_each_safe(pos, tmp, &hba->ep_active_list) {  in bnx2i_chip_cleanup()
206 			bnx2i_ep->cm_sk = NULL;  in bnx2i_chip_cleanup()
208 		mutex_unlock(&hba->net_dev_lock);  in bnx2i_chip_cleanup()
214  * bnx2i_stop - cnic callback to shutdown adapter instance
228 			      &hba->adapter_state)) {  in bnx2i_stop()
229 		iscsi_host_for_each_session(hba->shost,  in bnx2i_stop()
231 		wait_delay = hba->hba_shutdown_tmo;  in bnx2i_stop()
238 	wait_event_interruptible_timeout(hba->eh_wait,  in bnx2i_stop()
239 					 (list_empty(&hba->ep_ofld_list) &&  in bnx2i_stop()
240 					 list_empty(&hba->ep_destroy_list)),  in bnx2i_stop()
246 	while (hba->ofld_conns_active) {  in bnx2i_stop()
247 		conns_active = hba->ofld_conns_active;  in bnx2i_stop()
248 		wait_event_interruptible_timeout(hba->eh_wait,  in bnx2i_stop()
249 				(hba->ofld_conns_active != conns_active),  in bnx2i_stop()
251 		if (hba->ofld_conns_active == conns_active)  in bnx2i_stop()
259 	clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);  in bnx2i_stop()
260 	clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);  in bnx2i_stop()
265  * bnx2i_init_one - initialize an adapter instance and allocate memory resources
266  * @hba:	bnx2i adapter instance
278 	if (!cnic->max_iscsi_conn) {  in bnx2i_init_one()
280 			"iSCSI\n", hba->netdev->name);  in bnx2i_init_one()
281 		rc = -EOPNOTSUPP;  in bnx2i_init_one()
285 	hba->cnic = cnic;  in bnx2i_init_one()
286 	rc = cnic->register_device(cnic, CNIC_ULP_ISCSI, hba);  in bnx2i_init_one()
288 		hba->age++;  in bnx2i_init_one()
289 		set_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic);  in bnx2i_init_one()
290 		list_add_tail(&hba->link, &adapter_list);  in bnx2i_init_one()
292 	} else if (rc == -EBUSY) 	/* duplicate registration */  in bnx2i_init_one()
295 	else if (rc == -EAGAIN)  in bnx2i_init_one()
297 	else if (rc == -EINVAL)  in bnx2i_init_one()
310  * bnx2i_ulp_init - initialize an adapter instance
329 	clear_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic);  in bnx2i_ulp_init()
331 		printk(KERN_ERR "bnx2i - hba %p init failed\n", hba);  in bnx2i_ulp_init()
338  * bnx2i_ulp_exit - shuts down adapter instance and frees all resources
353 	list_del_init(&hba->link);  in bnx2i_ulp_exit()
354 	adapter_count--;  in bnx2i_ulp_exit()
356 	if (test_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic)) {  in bnx2i_ulp_exit()
357 		hba->cnic->unregister_device(hba->cnic, CNIC_ULP_ISCSI);  in bnx2i_ulp_exit()
358 		clear_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic);  in bnx2i_ulp_exit()
367  * bnx2i_get_stats - Retrieve various statistic from iSCSI offload
370  * function callback exported via bnx2i - cnic driver interface to
379 		return -EINVAL;  in bnx2i_get_stats()
381 	stats = (struct iscsi_stats_info *)hba->cnic->stats_addr;  in bnx2i_get_stats()
384 		return -ENOMEM;  in bnx2i_get_stats()
386 	strscpy(stats->version, DRV_MODULE_VERSION, sizeof(stats->version));  in bnx2i_get_stats()
387 	memcpy(stats->mac_add1 + 2, hba->cnic->mac_addr, ETH_ALEN);  in bnx2i_get_stats()
389 	stats->max_frame_size = hba->netdev->mtu;  in bnx2i_get_stats()
390 	stats->txq_size = hba->max_sqes;  in bnx2i_get_stats()
391 	stats->rxq_size = hba->max_cqes;  in bnx2i_get_stats()
393 	stats->txq_avg_depth = 0;  in bnx2i_get_stats()
394 	stats->rxq_avg_depth = 0;  in bnx2i_get_stats()
407  * bnx2i_cpu_online - Create a receive thread for an online CPU
423 	p->iothread = thread;  in bnx2i_cpu_online()
436 	spin_lock_bh(&p->p_work_lock);  in bnx2i_cpu_offline()
437 	thread = p->iothread;  in bnx2i_cpu_offline()
438 	p->iothread = NULL;  in bnx2i_cpu_offline()
441 	list_for_each_entry_safe(work, tmp, &p->work_list, list) {  in bnx2i_cpu_offline()
442 		list_del_init(&work->list);  in bnx2i_cpu_offline()
443 		bnx2i_process_scsi_cmd_resp(work->session,  in bnx2i_cpu_offline()
444 					    work->bnx2i_conn, &work->cqe);  in bnx2i_cpu_offline()
448 	spin_unlock_bh(&p->p_work_lock);  in bnx2i_cpu_offline()
457  * bnx2i_mod_init - module init entry point
461  *	with the cnic module
478 		err = -ENOMEM;  in bnx2i_mod_init()
491 		INIT_LIST_HEAD(&p->work_list);  in bnx2i_mod_init()
492 		spin_lock_init(&p->p_work_lock);  in bnx2i_mod_init()
493 		p->iothread = NULL;  in bnx2i_mod_init()
513  * bnx2i_mod_exit - module cleanup/exit entry point
516  *	in this function. Driver will browse through the adapter list, cleans-up
517  *	each instance, unregisters iscsi transport name and finally driver will
518  *	unregister itself with the cnic module
527 		list_del(&hba->link);  in bnx2i_mod_exit()
528 		adapter_count--;  in bnx2i_mod_exit()
530 		if (test_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic)) {  in bnx2i_mod_exit()
532 			hba->cnic->unregister_device(hba->cnic, CNIC_ULP_ISCSI);  in bnx2i_mod_exit()
533 			clear_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic);  in bnx2i_mod_exit()