1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *	Adaptec AAC series RAID controller driver
9  * Copyright (c) 2000-2010 Adaptec, Inc.
10  *               2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
11  *		 2016-2017 Microsemi Corp. (aacraid@microsemi.com)
46 	if (likely(intstat & ~(dev->OIMR))) {  in aac_rx_intr_producer()
49 			aac_printf(dev, readl (&dev->IndexRegs->Mailbox[5]));  in aac_rx_intr_producer()
55 			aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);  in aac_rx_intr_producer()
59 			aac_response_normal(&dev->queues->queue[HostNormRespQueue]);  in aac_rx_intr_producer()
113  *	aac_rx_disable_interrupt	-	Disable interrupts
119 	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);  in aac_rx_disable_interrupt()
123  *	aac_rx_enable_interrupt_producer	-	Enable interrupts
129 	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);  in aac_rx_enable_interrupt_producer()
133  *	aac_rx_enable_interrupt_message	-	Enable interrupts
139 	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);  in aac_rx_enable_interrupt_message()
143  *	rx_sync_cmd	-	send a command and wait
171 	writel(command, &dev->IndexRegs->Mailbox[0]);  in rx_sync_cmd()
173 	 *	Write the parameters into Mailboxes 1 - 6  in rx_sync_cmd()
175 	writel(p1, &dev->IndexRegs->Mailbox[1]);  in rx_sync_cmd()
176 	writel(p2, &dev->IndexRegs->Mailbox[2]);  in rx_sync_cmd()
177 	writel(p3, &dev->IndexRegs->Mailbox[3]);  in rx_sync_cmd()
178 	writel(p4, &dev->IndexRegs->Mailbox[4]);  in rx_sync_cmd()
186 	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);  in rx_sync_cmd()
227 		return -ETIMEDOUT;  in rx_sync_cmd()
233 		*status = readl(&dev->IndexRegs->Mailbox[0]);  in rx_sync_cmd()
235 		*r1 = readl(&dev->IndexRegs->Mailbox[1]);  in rx_sync_cmd()
237 		*r2 = readl(&dev->IndexRegs->Mailbox[2]);  in rx_sync_cmd()
239 		*r3 = readl(&dev->IndexRegs->Mailbox[3]);  in rx_sync_cmd()
241 		*r4 = readl(&dev->IndexRegs->Mailbox[4]);  in rx_sync_cmd()
255  *	aac_rx_interrupt_adapter	-	interrupt adapter
267  *	aac_rx_notify_adapter		-	send an event to the adapter
306  *	aac_rx_start_adapter		-	activate adapter
309  *	Start up processing on an i960 based AAC adapter
316 	init = dev->init;  in aac_rx_start_adapter()
317 	init->r7.host_elapsed_seconds = cpu_to_le32(ktime_get_real_seconds());  in aac_rx_start_adapter()
319 	rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,  in aac_rx_start_adapter()
338 		return -1;  in aac_rx_check_health()
353 		buffer = dma_alloc_coherent(&dev->pdev->dev, 512, &baddr,  in aac_rx_check_health()
355 		ret = -2;  in aac_rx_check_health()
358 		post = dma_alloc_coherent(&dev->pdev->dev,  in aac_rx_check_health()
362 			dma_free_coherent(&dev->pdev->dev, 512, buffer, baddr);  in aac_rx_check_health()
366 		post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS);  in aac_rx_check_health()
367 		post->Post_Address = cpu_to_le32(baddr);  in aac_rx_check_health()
371 		dma_free_coherent(&dev->pdev->dev, sizeof(struct POSTSTATUS),  in aac_rx_check_health()
377 		dma_free_coherent(&dev->pdev->dev, 512, buffer, baddr);  in aac_rx_check_health()
384 		return -3;  in aac_rx_check_health()
399 	struct aac_dev *dev = fib->dev;  in aac_rx_deliver_producer()
400 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];  in aac_rx_deliver_producer()
404 	aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);  in aac_rx_deliver_producer()
406 	atomic_inc(&q->numpending);  in aac_rx_deliver_producer()
407 	*(q->headers.producer) = cpu_to_le32(Index + 1);  in aac_rx_deliver_producer()
422 	struct aac_dev *dev = fib->dev;  in aac_rx_deliver_message()
423 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];  in aac_rx_deliver_message()
429 	atomic_inc(&q->numpending);  in aac_rx_deliver_message()
436 		if (--count == 0) {  in aac_rx_deliver_message()
437 			atomic_dec(&q->numpending);  in aac_rx_deliver_message()
438 			return -ETIMEDOUT;  in aac_rx_deliver_message()
442 	device = dev->base + Index;  in aac_rx_deliver_message()
443 	addr = fib->hw_fib_pa;  in aac_rx_deliver_message()
448 	writel(le16_to_cpu(fib->hw_fib_va->header.Size), device);  in aac_rx_deliver_message()
462 		iounmap(dev->regs.rx);  in aac_rx_ioremap()
465 	dev->base = dev->regs.rx = ioremap(dev->base_start, size);  in aac_rx_ioremap()
466 	if (dev->base == NULL)  in aac_rx_ioremap()
467 		return -1;  in aac_rx_ioremap()
468 	dev->IndexRegs = &dev->regs.rx->IndexRegs;  in aac_rx_ioremap()
476 	if (!(dev->supplement_adapter_info.supported_options2 &  in aac_rx_restart_adapter()
477 	  AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {  in aac_rx_restart_adapter()
480 				dev->name, dev->id, bled);  in aac_rx_restart_adapter()
485 				bled = -EINVAL;  in aac_rx_restart_adapter()
487 		if (bled && (bled != -ETIMEDOUT))  in aac_rx_restart_adapter()
491 		if (bled && (bled != -ETIMEDOUT))  in aac_rx_restart_adapter()
492 			return -EINVAL;  in aac_rx_restart_adapter()
500 		return -EINVAL;  in aac_rx_restart_adapter()
503 		return -ENODEV;  in aac_rx_restart_adapter()
510  *	aac_rx_select_comm	-	Select communications method
519 		dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_producer;  in aac_rx_select_comm()
520 		dev->a_ops.adapter_intr = aac_rx_intr_producer;  in aac_rx_select_comm()
521 		dev->a_ops.adapter_deliver = aac_rx_deliver_producer;  in aac_rx_select_comm()
524 		dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_message;  in aac_rx_select_comm()
525 		dev->a_ops.adapter_intr = aac_rx_intr_message;  in aac_rx_select_comm()
526 		dev->a_ops.adapter_deliver = aac_rx_deliver_message;  in aac_rx_select_comm()
535  *	_aac_rx_init	-	initialize an i960 based AAC card
538  *	Allocate and set up resources for the i960 based AAC variants. The 
548 	int instance = dev->id;  in _aac_rx_init()
549 	const char * name = dev->name;  in _aac_rx_init()
551 	if (aac_adapter_ioremap(dev, dev->base_size)) {  in _aac_rx_init()
557 	dev->a_ops.adapter_sync_cmd = rx_sync_cmd;  in _aac_rx_init()
558 	dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;  in _aac_rx_init()
559 	dev->OIMR = status = rx_readb (dev, MUnit.OIMR);  in _aac_rx_init()
561 	if (((status & 0x0c) != 0x0c) || dev->init_reset) {  in _aac_rx_init()
562 		dev->init_reset = false;  in _aac_rx_init()
585 		printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);  in _aac_rx_init()
592 		printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);  in _aac_rx_init()
605 					dev->name, instance, status);  in _aac_rx_init()
612 		    ? (startup_timeout - 60)  in _aac_rx_init()
626 	dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter;  in _aac_rx_init()
627 	dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;  in _aac_rx_init()
628 	dev->a_ops.adapter_notify = aac_rx_notify_adapter;  in _aac_rx_init()
629 	dev->a_ops.adapter_sync_cmd = rx_sync_cmd;  in _aac_rx_init()
630 	dev->a_ops.adapter_check_health = aac_rx_check_health;  in _aac_rx_init()
631 	dev->a_ops.adapter_restart = aac_rx_restart_adapter;  in _aac_rx_init()
632 	dev->a_ops.adapter_start = aac_rx_start_adapter;  in _aac_rx_init()
645 	aac_adapter_comm(dev, dev->comm_interface);  in _aac_rx_init()
646 	dev->sync_mode = 0;	/* sync. mode not supported */  in _aac_rx_init()
647 	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);  in _aac_rx_init()
648 	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,  in _aac_rx_init()
650 		if (dev->msi)  in _aac_rx_init()
651 			pci_disable_msi(dev->pdev);  in _aac_rx_init()
656 	dev->dbg_base = dev->base_start;  in _aac_rx_init()
657 	dev->dbg_base_mapped = dev->base;  in _aac_rx_init()
658 	dev->dbg_size = dev->base_size;  in _aac_rx_init()
671 	return -1;  in _aac_rx_init()
679 	dev->a_ops.adapter_ioremap = aac_rx_ioremap;  in aac_rx_init()
680 	dev->a_ops.adapter_comm = aac_rx_select_comm;  in aac_rx_init()