[deliverable/linux.git] / drivers / scsi / aacraid / comminit.c

/*
 *	Adaptec AAC series RAID controller driver
 *	(c) Copyright 2001 Red Hat Inc.
 *
 * based on the old aacraid driver that is..
 * Adaptec aacraid device driver for Linux.
 *
 * Copyright (c) 2000-2010 Adaptec, Inc.
 *               2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * Module Name:
 *  comminit.c
 *
 * Abstract: This supports the initialization of the host adapter commuication interface.
 *    This is a platform dependent module for the pci cyclone board.
 *
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/completion.h>
#include <linux/mm.h>
#include <scsi/scsi_host.h>

#include "aacraid.h"

struct aac_common aac_config = {
	.irq_mod = 1
};

static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign)
{
	unsigned char *base;
	unsigned long size, align;
	const unsigned long fibsize = 4096;
	const unsigned long printfbufsiz = 256;
	unsigned long host_rrq_size = 0;
	struct aac_init *init;
	dma_addr_t phys;
	unsigned long aac_max_hostphysmempages;

	if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1)
		host_rrq_size = (dev->scsi_host_ptr->can_queue
			+ AAC_NUM_MGT_FIB) * sizeof(u32);
	size = fibsize + sizeof(struct aac_init) + commsize +
			commalign + printfbufsiz + host_rrq_size;
 
	base = pci_alloc_consistent(dev->pdev, size, &phys);

	if(base == NULL)
	{
		printk(KERN_ERR "aacraid: unable to create mapping.\n");
		return 0;
	}
	dev->comm_addr = (void *)base;
	dev->comm_phys = phys;
	dev->comm_size = size;
	
	if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) {
		dev->host_rrq = (u32 *)(base + fibsize);
		dev->host_rrq_pa = phys + fibsize;
		memset(dev->host_rrq, 0, host_rrq_size);
	}

	dev->init = (struct aac_init *)(base + fibsize + host_rrq_size);
	dev->init_pa = phys + fibsize + host_rrq_size;

	init = dev->init;

	init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION);
	if (dev->max_fib_size != sizeof(struct hw_fib))
		init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4);
	init->MiniPortRevision = cpu_to_le32(Sa_MINIPORT_REVISION);
	init->fsrev = cpu_to_le32(dev->fsrev);

	/*
	 *	Adapter Fibs are the first thing allocated so that they
	 *	start page aligned
	 */
	dev->aif_base_va = (struct hw_fib *)base;
	
	init->AdapterFibsVirtualAddress = 0;
	init->AdapterFibsPhysicalAddress = cpu_to_le32((u32)phys);
	init->AdapterFibsSize = cpu_to_le32(fibsize);
	init->AdapterFibAlign = cpu_to_le32(sizeof(struct hw_fib));
	/*
	 * number of 4k pages of host physical memory. The aacraid fw needs
	 * this number to be less than 4gb worth of pages. New firmware doesn't
	 * have any issues with the mapping system, but older Firmware did, and
	 * had *troubles* dealing with the math overloading past 32 bits, thus
	 * we must limit this field.
	 */
	aac_max_hostphysmempages = dma_get_required_mask(&dev->pdev->dev) >> 12;
	if (aac_max_hostphysmempages < AAC_MAX_HOSTPHYSMEMPAGES)
		init->HostPhysMemPages = cpu_to_le32(aac_max_hostphysmempages);
	else
		init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES);

	init->InitFlags = 0;
	if (dev->comm_interface == AAC_COMM_MESSAGE) {
		init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED);
		dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n"));
	} else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) {
		init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_6);
		init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_TYPE1_SUPPORTED);
		dprintk((KERN_WARNING
			"aacraid: New Comm Interface type1 enabled\n"));
	}
	init->InitFlags |= cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME |
				       INITFLAGS_DRIVER_SUPPORTS_PM);
	init->MaxIoCommands = cpu_to_le32(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB);
	init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9);
	init->MaxFibSize = cpu_to_le32(dev->max_fib_size);

	init->MaxNumAif = cpu_to_le32(dev->max_num_aif);
	init->HostRRQ_AddrHigh = (u32)((u64)dev->host_rrq_pa >> 32);
	init->HostRRQ_AddrLow = (u32)(dev->host_rrq_pa & 0xffffffff);


	/*
	 * Increment the base address by the amount already used
	 */
	base = base + fibsize + host_rrq_size + sizeof(struct aac_init);
	phys = (dma_addr_t)((ulong)phys + fibsize + host_rrq_size +
		sizeof(struct aac_init));

	/*
	 *	Align the beginning of Headers to commalign
	 */
	align = (commalign - ((uintptr_t)(base) & (commalign - 1)));
	base = base + align;
	phys = phys + align;
	/*
	 *	Fill in addresses of the Comm Area Headers and Queues
	 */
	*commaddr = base;
	init->CommHeaderAddress = cpu_to_le32((u32)phys);
	/*
	 *	Increment the base address by the size of the CommArea
	 */
	base = base + commsize;
	phys = phys + commsize;
	/*
	 *	 Place the Printf buffer area after the Fast I/O comm area.
	 */
	dev->printfbuf = (void *)base;
	init->printfbuf = cpu_to_le32(phys);
	init->printfbufsiz = cpu_to_le32(printfbufsiz);
	memset(base, 0, printfbufsiz);
	return 1;
}
    
static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize)
{
	q->numpending = 0;
	q->dev = dev;
	init_waitqueue_head(&q->cmdready);
	INIT_LIST_HEAD(&q->cmdq);
	init_waitqueue_head(&q->qfull);
	spin_lock_init(&q->lockdata);
	q->lock = &q->lockdata;
	q->headers.producer = (__le32 *)mem;
	q->headers.consumer = (__le32 *)(mem+1);
	*(q->headers.producer) = cpu_to_le32(qsize);
	*(q->headers.consumer) = cpu_to_le32(qsize);
	q->entries = qsize;
}

/**
 *	aac_send_shutdown		-	shutdown an adapter
 *	@dev: Adapter to shutdown
 *
 *	This routine will send a VM_CloseAll (shutdown) request to the adapter.
 */

int aac_send_shutdown(struct aac_dev * dev)
{
	struct fib * fibctx;
	struct aac_close *cmd;
	int status;

	fibctx = aac_fib_alloc(dev);
	if (!fibctx)
		return -ENOMEM;
	aac_fib_init(fibctx);

	cmd = (struct aac_close *) fib_data(fibctx);

	cmd->command = cpu_to_le32(VM_CloseAll);
	cmd->cid = cpu_to_le32(0xffffffff);

	status = aac_fib_send(ContainerCommand,
			  fibctx,
			  sizeof(struct aac_close),
			  FsaNormal,
			  -2 /* Timeout silently */, 1,
			  NULL, NULL);

	if (status >= 0)
		aac_fib_complete(fibctx);
	/* FIB should be freed only after getting the response from the F/W */
	if (status != -ERESTARTSYS)
		aac_fib_free(fibctx);
	return status;
}

/**
 *	aac_comm_init	-	Initialise FSA data structures
 *	@dev:	Adapter to initialise
 *
 *	Initializes the data structures that are required for the FSA commuication
 *	interface to operate. 
 *	Returns
 *		1 - if we were able to init the commuication interface.
 *		0 - If there were errors initing. This is a fatal error.
 */
 
static int aac_comm_init(struct aac_dev * dev)
{
	unsigned long hdrsize = (sizeof(u32) * NUMBER_OF_COMM_QUEUES) * 2;
	unsigned long queuesize = sizeof(struct aac_entry) * TOTAL_QUEUE_ENTRIES;
	u32 *headers;
	struct aac_entry * queues;
	unsigned long size;
	struct aac_queue_block * comm = dev->queues;
	/*
	 *	Now allocate and initialize the zone structures used as our 
	 *	pool of FIB context records.  The size of the zone is based
	 *	on the system memory size.  We also initialize the mutex used
	 *	to protect the zone.
	 */
	spin_lock_init(&dev->fib_lock);

	/*
	 *	Allocate the physically contiguous space for the commuication
	 *	queue headers. 
	 */

	size = hdrsize + queuesize;

	if (!aac_alloc_comm(dev, (void * *)&headers, size, QUEUE_ALIGNMENT))
		return -ENOMEM;

	queues = (struct aac_entry *)(((ulong)headers) + hdrsize);

	/* Adapter to Host normal priority Command queue */ 
	comm->queue[HostNormCmdQueue].base = queues;
	aac_queue_init(dev, &comm->queue[HostNormCmdQueue], headers, HOST_NORM_CMD_ENTRIES);
	queues += HOST_NORM_CMD_ENTRIES;
	headers += 2;

	/* Adapter to Host high priority command queue */
	comm->queue[HostHighCmdQueue].base = queues;
	aac_queue_init(dev, &comm->queue[HostHighCmdQueue], headers, HOST_HIGH_CMD_ENTRIES);
    
	queues += HOST_HIGH_CMD_ENTRIES;
	headers +=2;

	/* Host to adapter normal priority command queue */
	comm->queue[AdapNormCmdQueue].base = queues;
	aac_queue_init(dev, &comm->queue[AdapNormCmdQueue], headers, ADAP_NORM_CMD_ENTRIES);
    
	queues += ADAP_NORM_CMD_ENTRIES;
	headers += 2;

	/* host to adapter high priority command queue */
	comm->queue[AdapHighCmdQueue].base = queues;
	aac_queue_init(dev, &comm->queue[AdapHighCmdQueue], headers, ADAP_HIGH_CMD_ENTRIES);
    
	queues += ADAP_HIGH_CMD_ENTRIES;
	headers += 2;

	/* adapter to host normal priority response queue */
	comm->queue[HostNormRespQueue].base = queues;
	aac_queue_init(dev, &comm->queue[HostNormRespQueue], headers, HOST_NORM_RESP_ENTRIES);
	queues += HOST_NORM_RESP_ENTRIES;
	headers += 2;

	/* adapter to host high priority response queue */
	comm->queue[HostHighRespQueue].base = queues;
	aac_queue_init(dev, &comm->queue[HostHighRespQueue], headers, HOST_HIGH_RESP_ENTRIES);
   
	queues += HOST_HIGH_RESP_ENTRIES;
	headers += 2;

	/* host to adapter normal priority response queue */
	comm->queue[AdapNormRespQueue].base = queues;
	aac_queue_init(dev, &comm->queue[AdapNormRespQueue], headers, ADAP_NORM_RESP_ENTRIES);

	queues += ADAP_NORM_RESP_ENTRIES;
	headers += 2;
	
	/* host to adapter high priority response queue */ 
	comm->queue[AdapHighRespQueue].base = queues;
	aac_queue_init(dev, &comm->queue[AdapHighRespQueue], headers, ADAP_HIGH_RESP_ENTRIES);

	comm->queue[AdapNormCmdQueue].lock = comm->queue[HostNormRespQueue].lock;
	comm->queue[AdapHighCmdQueue].lock = comm->queue[HostHighRespQueue].lock;
	comm->queue[AdapNormRespQueue].lock = comm->queue[HostNormCmdQueue].lock;
	comm->queue[AdapHighRespQueue].lock = comm->queue[HostHighCmdQueue].lock;

	return 0;
}

struct aac_dev *aac_init_adapter(struct aac_dev *dev)
{
	u32 status[5];
	struct Scsi_Host * host = dev->scsi_host_ptr;

	/*
	 *	Check the preferred comm settings, defaults from template.
	 */
	dev->management_fib_count = 0;
	spin_lock_init(&dev->manage_lock);
	dev->max_fib_size = sizeof(struct hw_fib);
	dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size
		- sizeof(struct aac_fibhdr)
		- sizeof(struct aac_write) + sizeof(struct sgentry))
			/ sizeof(struct sgentry);
	dev->comm_interface = AAC_COMM_PRODUCER;
	dev->raw_io_interface = dev->raw_io_64 = 0;

	if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
		0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) &&
	 		(status[0] == 0x00000001)) {
		if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64))
			dev->raw_io_64 = 1;
		if (dev->a_ops.adapter_comm) {
			if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE1)) {
				dev->comm_interface = AAC_COMM_MESSAGE_TYPE1;
				dev->raw_io_interface = 1;
			} else if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM)) {
				dev->comm_interface = AAC_COMM_MESSAGE;
				dev->raw_io_interface = 1;
			}
		}
		if ((dev->comm_interface == AAC_COMM_MESSAGE) &&
		    (status[2] > dev->base_size)) {
			aac_adapter_ioremap(dev, 0);
			dev->base_size = status[2];
			if (aac_adapter_ioremap(dev, status[2])) {
				/* remap failed, go back ... */
				dev->comm_interface = AAC_COMM_PRODUCER;
				if (aac_adapter_ioremap(dev, AAC_MIN_FOOTPRINT_SIZE)) {
					printk(KERN_WARNING
					  "aacraid: unable to map adapter.\n");
					return NULL;
				}
			}
		}
	}
	if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
	  0, 0, 0, 0, 0, 0,
	  status+0, status+1, status+2, status+3, status+4))
	 && (status[0] == 0x00000001)) {
		/*
		 *	status[1] >> 16		maximum command size in KB
		 *	status[1] & 0xFFFF	maximum FIB size
		 *	status[2] >> 16		maximum SG elements to driver
		 *	status[2] & 0xFFFF	maximum SG elements from driver
		 *	status[3] & 0xFFFF	maximum number FIBs outstanding
		 */
		host->max_sectors = (status[1] >> 16) << 1;
		/* Multiple of 32 for PMC */
		dev->max_fib_size = status[1] & 0xFFE0;
		host->sg_tablesize = status[2] >> 16;
		dev->sg_tablesize = status[2] & 0xFFFF;
		host->can_queue = (status[3] & 0xFFFF) - AAC_NUM_MGT_FIB;
		dev->max_num_aif = status[4] & 0xFFFF;
		/*
		 *	NOTE:
		 *	All these overrides are based on a fixed internal
		 *	knowledge and understanding of existing adapters,
		 *	acbsize should be set with caution.
		 */
		if (acbsize == 512) {
			host->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
			dev->max_fib_size = 512;
			dev->sg_tablesize = host->sg_tablesize
			  = (512 - sizeof(struct aac_fibhdr)
			    - sizeof(struct aac_write) + sizeof(struct sgentry))
			     / sizeof(struct sgentry);
			host->can_queue = AAC_NUM_IO_FIB;
		} else if (acbsize == 2048) {
			host->max_sectors = 512;
			dev->max_fib_size = 2048;
			host->sg_tablesize = 65;
			dev->sg_tablesize = 81;
			host->can_queue = 512 - AAC_NUM_MGT_FIB;
		} else if (acbsize == 4096) {
			host->max_sectors = 1024;
			dev->max_fib_size = 4096;
			host->sg_tablesize = 129;
			dev->sg_tablesize = 166;
			host->can_queue = 256 - AAC_NUM_MGT_FIB;
		} else if (acbsize == 8192) {
			host->max_sectors = 2048;
			dev->max_fib_size = 8192;
			host->sg_tablesize = 257;
			dev->sg_tablesize = 337;
			host->can_queue = 128 - AAC_NUM_MGT_FIB;
		} else if (acbsize > 0) {
			printk("Illegal acbsize=%d ignored\n", acbsize);
		}
	}
	{

		if (numacb > 0) {
			if (numacb < host->can_queue)
				host->can_queue = numacb;
			else
				printk("numacb=%d ignored\n", numacb);
		}
	}

	/*
	 *	Ok now init the communication subsystem
	 */

	dev->queues = kzalloc(sizeof(struct aac_queue_block), GFP_KERNEL);
	if (dev->queues == NULL) {
		printk(KERN_ERR "Error could not allocate comm region.\n");
		return NULL;
	}

	if (aac_comm_init(dev)<0){
		kfree(dev->queues);
		return NULL;
	}
	/*
	 *	Initialize the list of fibs
	 */
	if (aac_fib_setup(dev) < 0) {
		kfree(dev->queues);
		return NULL;
	}
		
	INIT_LIST_HEAD(&dev->fib_list);

	return dev;
}
Commit	Line	Data
1da177e4 LT	1	/*
1da177e4 LT	2	* Adaptec AAC series RAID controller driver
fa195afe	3	* (c) Copyright 2001 Red Hat Inc.
1da177e4 LT	4	*
	5	* based on the old aacraid driver that is..
	6	* Adaptec aacraid device driver for Linux.
	7	*
e8b12f0f MR	8	* Copyright (c) 2000-2010 Adaptec, Inc.
e8b12f0f MR	9	* 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
1da177e4 LT	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License as published by
	13	* the Free Software Foundation; either version 2, or (at your option)
	14	* any later version.
	15	*
	16	* This program is distributed in the hope that it will be useful,
	17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	* GNU General Public License for more details.
	20	*
	21	* You should have received a copy of the GNU General Public License
	22	* along with this program; see the file COPYING. If not, write to
	23	* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
	24	*
	25	* Module Name:
	26	* comminit.c
	27	*
	28	* Abstract: This supports the initialization of the host adapter commuication interface.
	29	* This is a platform dependent module for the pci cyclone board.
	30	*
	31	*/
	32
	33	#include <linux/kernel.h>
	34	#include <linux/init.h>
	35	#include <linux/types.h>
1da177e4 LT	36	#include <linux/pci.h>
	37	#include <linux/spinlock.h>
	38	#include <linux/slab.h>
	39	#include <linux/blkdev.h>
	40	#include <linux/completion.h>
	41	#include <linux/mm.h>
7c00ffa3	42	#include <scsi/scsi_host.h>
1da177e4 LT	43
	44	#include "aacraid.h"
	45
bed30de4 MH	46	struct aac_common aac_config = {
	47	.irq_mod = 1
	48	};
1da177e4 LT	49
	50	static int aac_alloc_comm(struct aac_dev dev, void *commaddr, unsigned long commsize, unsigned long commalign)
	51	{
	52	unsigned char *base;
	53	unsigned long size, align;
7c00ffa3 MH	54	const unsigned long fibsize = 4096;
7c00ffa3 MH	55	const unsigned long printfbufsiz = 256;
e8b12f0f	56	unsigned long host_rrq_size = 0;
1da177e4 LT	57	struct aac_init *init;
1da177e4 LT	58	dma_addr_t phys;
d8e96507	59	unsigned long aac_max_hostphysmempages;
1da177e4	60
e8b12f0f MR	61	if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1)
	62	host_rrq_size = (dev->scsi_host_ptr->can_queue
	63	+ AAC_NUM_MGT_FIB) * sizeof(u32);
	64	size = fibsize + sizeof(struct aac_init) + commsize +
	65	commalign + printfbufsiz + host_rrq_size;
1da177e4 LT	66
	67	base = pci_alloc_consistent(dev->pdev, size, &phys);
	68
	69	if(base == NULL)
	70	{
	71	printk(KERN_ERR "aacraid: unable to create mapping.\n");
	72	return 0;
	73	}
	74	dev->comm_addr = (void *)base;
	75	dev->comm_phys = phys;
	76	dev->comm_size = size;
	77
e8b12f0f MR	78	if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) {
	79	dev->host_rrq = (u32 *)(base + fibsize);
	80	dev->host_rrq_pa = phys + fibsize;
	81	memset(dev->host_rrq, 0, host_rrq_size);
	82	}
	83
	84	dev->init = (struct aac_init *)(base + fibsize + host_rrq_size);
	85	dev->init_pa = phys + fibsize + host_rrq_size;
1da177e4 LT	86
	87	init = dev->init;
	88
	89	init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION);
7c00ffa3 MH	90	if (dev->max_fib_size != sizeof(struct hw_fib))
7c00ffa3 MH	91	init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4);
1da177e4 LT	92	init->MiniPortRevision = cpu_to_le32(Sa_MINIPORT_REVISION);
	93	init->fsrev = cpu_to_le32(dev->fsrev);
	94
	95	/*
	96	* Adapter Fibs are the first thing allocated so that they
	97	* start page aligned
	98	*/
	99	dev->aif_base_va = (struct hw_fib *)base;
	100
	101	init->AdapterFibsVirtualAddress = 0;
	102	init->AdapterFibsPhysicalAddress = cpu_to_le32((u32)phys);
	103	init->AdapterFibsSize = cpu_to_le32(fibsize);
	104	init->AdapterFibAlign = cpu_to_le32(sizeof(struct hw_fib));
d8e96507 LA	105	/*
	106	* number of 4k pages of host physical memory. The aacraid fw needs
	107	* this number to be less than 4gb worth of pages. New firmware doesn't
	108	* have any issues with the mapping system, but older Firmware did, and
	109	* had troubles dealing with the math overloading past 32 bits, thus
	110	* we must limit this field.
	111	*/
	112	aac_max_hostphysmempages = dma_get_required_mask(&dev->pdev->dev) >> 12;
	113	if (aac_max_hostphysmempages < AAC_MAX_HOSTPHYSMEMPAGES)
	114	init->HostPhysMemPages = cpu_to_le32(aac_max_hostphysmempages);
	115	else
	116	init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES);
1da177e4	117
7c00ffa3	118	init->InitFlags = 0;
28713324	119	if (dev->comm_interface == AAC_COMM_MESSAGE) {
e8b12f0f	120	init->InitFlags \|= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED);
8e0c5ebd	121	dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n"));
e8b12f0f MR	122	} else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) {
	123	init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_6);
	124	init->InitFlags \|= cpu_to_le32(INITFLAGS_NEW_COMM_TYPE1_SUPPORTED);
	125	dprintk((KERN_WARNING
	126	"aacraid: New Comm Interface type1 enabled\n"));
8e0c5ebd	127	}
655d722c MS	128	init->InitFlags \|= cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME \|
655d722c MS	129	INITFLAGS_DRIVER_SUPPORTS_PM);
7c00ffa3 MH	130	init->MaxIoCommands = cpu_to_le32(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB);
	131	init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9);
	132	init->MaxFibSize = cpu_to_le32(dev->max_fib_size);
1da177e4	133
e8b12f0f MR	134	init->MaxNumAif = cpu_to_le32(dev->max_num_aif);
	135	init->HostRRQ_AddrHigh = (u32)((u64)dev->host_rrq_pa >> 32);
	136	init->HostRRQ_AddrLow = (u32)(dev->host_rrq_pa & 0xffffffff);
	137
	138
1da177e4 LT	139	/*
	140	* Increment the base address by the amount already used
	141	*/
e8b12f0f MR	142	base = base + fibsize + host_rrq_size + sizeof(struct aac_init);
	143	phys = (dma_addr_t)((ulong)phys + fibsize + host_rrq_size +
	144	sizeof(struct aac_init));
	145
1da177e4 LT	146	/*
	147	* Align the beginning of Headers to commalign
	148	*/
142956af	149	align = (commalign - ((uintptr_t)(base) & (commalign - 1)));
1da177e4 LT	150	base = base + align;
	151	phys = phys + align;
	152	/*
	153	* Fill in addresses of the Comm Area Headers and Queues
	154	*/
	155	*commaddr = base;
	156	init->CommHeaderAddress = cpu_to_le32((u32)phys);
	157	/*
	158	* Increment the base address by the size of the CommArea
	159	*/
	160	base = base + commsize;
	161	phys = phys + commsize;
	162	/*
	163	* Place the Printf buffer area after the Fast I/O comm area.
	164	*/
	165	dev->printfbuf = (void *)base;
	166	init->printfbuf = cpu_to_le32(phys);
	167	init->printfbufsiz = cpu_to_le32(printfbufsiz);
	168	memset(base, 0, printfbufsiz);
	169	return 1;
	170	}
	171
	172	static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize)
	173	{
	174	q->numpending = 0;
	175	q->dev = dev;
1da177e4 LT	176	init_waitqueue_head(&q->cmdready);
	177	INIT_LIST_HEAD(&q->cmdq);
	178	init_waitqueue_head(&q->qfull);
	179	spin_lock_init(&q->lockdata);
	180	q->lock = &q->lockdata;
56b58712 MH	181	q->headers.producer = (__le32 *)mem;
56b58712 MH	182	q->headers.consumer = (__le32 *)(mem+1);
1da177e4 LT	183	*(q->headers.producer) = cpu_to_le32(qsize);
	184	*(q->headers.consumer) = cpu_to_le32(qsize);
	185	q->entries = qsize;
	186	}
	187
	188	/**
	189	* aac_send_shutdown - shutdown an adapter
	190	* @dev: Adapter to shutdown
	191	*
	192	* This routine will send a VM_CloseAll (shutdown) request to the adapter.
	193	*/
	194
	195	int aac_send_shutdown(struct aac_dev * dev)
	196	{
	197	struct fib * fibctx;
	198	struct aac_close *cmd;
	199	int status;
	200
bfb35aa8	201	fibctx = aac_fib_alloc(dev);
7c00ffa3 MH	202	if (!fibctx)
7c00ffa3 MH	203	return -ENOMEM;
bfb35aa8	204	aac_fib_init(fibctx);
1da177e4 LT	205
	206	cmd = (struct aac_close *) fib_data(fibctx);
	207
	208	cmd->command = cpu_to_le32(VM_CloseAll);
	209	cmd->cid = cpu_to_le32(0xffffffff);
	210
bfb35aa8	211	status = aac_fib_send(ContainerCommand,
1da177e4 LT	212	fibctx,
	213	sizeof(struct aac_close),
	214	FsaNormal,
9203344c	215	-2 /* Timeout silently */, 1,
1da177e4 LT	216	NULL, NULL);
1da177e4 LT	217
90ee3466	218	if (status >= 0)
bfb35aa8	219	aac_fib_complete(fibctx);
cacb6dc3 PNRCEH	220	/* FIB should be freed only after getting the response from the F/W */
	221	if (status != -ERESTARTSYS)
	222	aac_fib_free(fibctx);
1da177e4 LT	223	return status;
	224	}
	225
	226	/**
	227	* aac_comm_init - Initialise FSA data structures
	228	* @dev: Adapter to initialise
	229	*
	230	* Initializes the data structures that are required for the FSA commuication
	231	* interface to operate.
	232	* Returns
	233	* 1 - if we were able to init the commuication interface.
	234	* 0 - If there were errors initing. This is a fatal error.
	235	*/
	236
4833869e	237	static int aac_comm_init(struct aac_dev * dev)
1da177e4 LT	238	{
	239	unsigned long hdrsize = (sizeof(u32) * NUMBER_OF_COMM_QUEUES) * 2;
	240	unsigned long queuesize = sizeof(struct aac_entry) * TOTAL_QUEUE_ENTRIES;
	241	u32 *headers;
	242	struct aac_entry * queues;
	243	unsigned long size;
	244	struct aac_queue_block * comm = dev->queues;
	245	/*
	246	* Now allocate and initialize the zone structures used as our
	247	* pool of FIB context records. The size of the zone is based
	248	* on the system memory size. We also initialize the mutex used
	249	* to protect the zone.
	250	*/
	251	spin_lock_init(&dev->fib_lock);
	252
	253	/*
af901ca1	254	* Allocate the physically contiguous space for the commuication
1da177e4 LT	255	* queue headers.
	256	*/
	257
	258	size = hdrsize + queuesize;
	259
	260	if (!aac_alloc_comm(dev, (void * *)&headers, size, QUEUE_ALIGNMENT))
	261	return -ENOMEM;
	262
	263	queues = (struct aac_entry *)(((ulong)headers) + hdrsize);
	264
	265	/* Adapter to Host normal priority Command queue */
	266	comm->queue[HostNormCmdQueue].base = queues;
	267	aac_queue_init(dev, &comm->queue[HostNormCmdQueue], headers, HOST_NORM_CMD_ENTRIES);
	268	queues += HOST_NORM_CMD_ENTRIES;
	269	headers += 2;
	270
	271	/* Adapter to Host high priority command queue */
	272	comm->queue[HostHighCmdQueue].base = queues;
	273	aac_queue_init(dev, &comm->queue[HostHighCmdQueue], headers, HOST_HIGH_CMD_ENTRIES);
	274
	275	queues += HOST_HIGH_CMD_ENTRIES;
	276	headers +=2;
	277
	278	/* Host to adapter normal priority command queue */
	279	comm->queue[AdapNormCmdQueue].base = queues;
	280	aac_queue_init(dev, &comm->queue[AdapNormCmdQueue], headers, ADAP_NORM_CMD_ENTRIES);
	281
	282	queues += ADAP_NORM_CMD_ENTRIES;
	283	headers += 2;
	284
	285	/* host to adapter high priority command queue */
	286	comm->queue[AdapHighCmdQueue].base = queues;
	287	aac_queue_init(dev, &comm->queue[AdapHighCmdQueue], headers, ADAP_HIGH_CMD_ENTRIES);
	288
	289	queues += ADAP_HIGH_CMD_ENTRIES;
	290	headers += 2;
	291
	292	/* adapter to host normal priority response queue */
	293	comm->queue[HostNormRespQueue].base = queues;
	294	aac_queue_init(dev, &comm->queue[HostNormRespQueue], headers, HOST_NORM_RESP_ENTRIES);
	295	queues += HOST_NORM_RESP_ENTRIES;
	296	headers += 2;
	297
	298	/* adapter to host high priority response queue */
	299	comm->queue[HostHighRespQueue].base = queues;
	300	aac_queue_init(dev, &comm->queue[HostHighRespQueue], headers, HOST_HIGH_RESP_ENTRIES);
	301
	302	queues += HOST_HIGH_RESP_ENTRIES;
	303	headers += 2;
	304
	305	/* host to adapter normal priority response queue */
	306	comm->queue[AdapNormRespQueue].base = queues;
	307	aac_queue_init(dev, &comm->queue[AdapNormRespQueue], headers, ADAP_NORM_RESP_ENTRIES);
	308
	309	queues += ADAP_NORM_RESP_ENTRIES;
	310	headers += 2;
	311
	312	/* host to adapter high priority response queue */
	313	comm->queue[AdapHighRespQueue].base = queues;
	314	aac_queue_init(dev, &comm->queue[AdapHighRespQueue], headers, ADAP_HIGH_RESP_ENTRIES);
	315
	316	comm->queue[AdapNormCmdQueue].lock = comm->queue[HostNormRespQueue].lock;
	317	comm->queue[AdapHighCmdQueue].lock = comm->queue[HostHighRespQueue].lock;
	318	comm->queue[AdapNormRespQueue].lock = comm->queue[HostNormCmdQueue].lock;
319	comm->queue[AdapHighRespQueue].lock = comm->queue[HostHighCmdQueue].lock;
320
321	return 0;
322	}
323
324	struct aac_dev aac_init_adapter(struct aac_dev dev)
325	{
7c00ffa3 MH	326	u32 status[5];
	327	struct Scsi_Host * host = dev->scsi_host_ptr;
	328
	329	/*
	330	* Check the preferred comm settings, defaults from template.
	331	*/
cacb6dc3 PNRCEH	332	dev->management_fib_count = 0;
cacb6dc3 PNRCEH	333	spin_lock_init(&dev->manage_lock);
7c00ffa3 MH	334	dev->max_fib_size = sizeof(struct hw_fib);
	335	dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size
	336	- sizeof(struct aac_fibhdr)
63a70eea MH	337	- sizeof(struct aac_write) + sizeof(struct sgentry))
63a70eea MH	338	/ sizeof(struct sgentry);
28713324	339	dev->comm_interface = AAC_COMM_PRODUCER;
e8b12f0f MR	340	dev->raw_io_interface = dev->raw_io_64 = 0;
e8b12f0f MR	341
7a8cf29d MH	342	if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
	343	0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) &&
	344	(status[0] == 0x00000001)) {
a3940da5	345	if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64))
7a8cf29d	346	dev->raw_io_64 = 1;
e8b12f0f MR	347	if (dev->a_ops.adapter_comm) {
	348	if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE1)) {
	349	dev->comm_interface = AAC_COMM_MESSAGE_TYPE1;
	350	dev->raw_io_interface = 1;
	351	} else if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM)) {
	352	dev->comm_interface = AAC_COMM_MESSAGE;
	353	dev->raw_io_interface = 1;
	354	}
	355	}
28713324 MH	356	if ((dev->comm_interface == AAC_COMM_MESSAGE) &&
28713324 MH	357	(status[2] > dev->base_size)) {
76a7f8fd	358	aac_adapter_ioremap(dev, 0);
8e0c5ebd	359	dev->base_size = status[2];
76a7f8fd	360	if (aac_adapter_ioremap(dev, status[2])) {
8e0c5ebd	361	/* remap failed, go back ... */
28713324	362	dev->comm_interface = AAC_COMM_PRODUCER;
76a7f8fd	363	if (aac_adapter_ioremap(dev, AAC_MIN_FOOTPRINT_SIZE)) {
8e0c5ebd MH	364	printk(KERN_WARNING
	365	"aacraid: unable to map adapter.\n");
	366	return NULL;
	367	}
	368	}
	369	}
7a8cf29d	370	}
7c00ffa3 MH	371	if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
	372	0, 0, 0, 0, 0, 0,
	373	status+0, status+1, status+2, status+3, status+4))
	374	&& (status[0] == 0x00000001)) {
	375	/*
	376	* status[1] >> 16 maximum command size in KB
	377	* status[1] & 0xFFFF maximum FIB size
	378	* status[2] >> 16 maximum SG elements to driver
	379	* status[2] & 0xFFFF maximum SG elements from driver
	380	* status[3] & 0xFFFF maximum number FIBs outstanding
	381	*/
	382	host->max_sectors = (status[1] >> 16) << 1;
e8b12f0f MR	383	/* Multiple of 32 for PMC */
e8b12f0f MR	384	dev->max_fib_size = status[1] & 0xFFE0;
7c00ffa3 MH	385	host->sg_tablesize = status[2] >> 16;
	386	dev->sg_tablesize = status[2] & 0xFFFF;
	387	host->can_queue = (status[3] & 0xFFFF) - AAC_NUM_MGT_FIB;
e8b12f0f	388	dev->max_num_aif = status[4] & 0xFFFF;
7c00ffa3 MH	389	/*
	390	* NOTE:
	391	* All these overrides are based on a fixed internal
	392	* knowledge and understanding of existing adapters,
	393	* acbsize should be set with caution.
	394	*/
	395	if (acbsize == 512) {
	396	host->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
	397	dev->max_fib_size = 512;
	398	dev->sg_tablesize = host->sg_tablesize
	399	= (512 - sizeof(struct aac_fibhdr)
63a70eea MH	400	- sizeof(struct aac_write) + sizeof(struct sgentry))
63a70eea MH	401	/ sizeof(struct sgentry);
7c00ffa3 MH	402	host->can_queue = AAC_NUM_IO_FIB;
	403	} else if (acbsize == 2048) {
	404	host->max_sectors = 512;
	405	dev->max_fib_size = 2048;
	406	host->sg_tablesize = 65;
	407	dev->sg_tablesize = 81;
	408	host->can_queue = 512 - AAC_NUM_MGT_FIB;
	409	} else if (acbsize == 4096) {
	410	host->max_sectors = 1024;
	411	dev->max_fib_size = 4096;
	412	host->sg_tablesize = 129;
	413	dev->sg_tablesize = 166;
	414	host->can_queue = 256 - AAC_NUM_MGT_FIB;
	415	} else if (acbsize == 8192) {
	416	host->max_sectors = 2048;
	417	dev->max_fib_size = 8192;
	418	host->sg_tablesize = 257;
	419	dev->sg_tablesize = 337;
	420	host->can_queue = 128 - AAC_NUM_MGT_FIB;
	421	} else if (acbsize > 0) {
	422	printk("Illegal acbsize=%d ignored\n", acbsize);
	423	}
	424	}
	425	{
	426
	427	if (numacb > 0) {
	428	if (numacb < host->can_queue)
	429	host->can_queue = numacb;
	430	else
	431	printk("numacb=%d ignored\n", numacb);
	432	}
	433	}
	434
1da177e4 LT	435	/*
	436	* Ok now init the communication subsystem
	437	*/
	438
4dbc22d7	439	dev->queues = kzalloc(sizeof(struct aac_queue_block), GFP_KERNEL);
1da177e4 LT	440	if (dev->queues == NULL) {
	441	printk(KERN_ERR "Error could not allocate comm region.\n");
	442	return NULL;
	443	}
1da177e4 LT	444
	445	if (aac_comm_init(dev)<0){
	446	kfree(dev->queues);
	447	return NULL;
	448	}
	449	/*
	450	* Initialize the list of fibs
	451	*/
bfb35aa8	452	if (aac_fib_setup(dev) < 0) {
1da177e4 LT	453	kfree(dev->queues);
	454	return NULL;
	455	}
	456
	457	INIT_LIST_HEAD(&dev->fib_list);
1da177e4 LT	458
	459	return dev;
	460	}
	461
	462