forked from luck/tmp_suning_uos_patched
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
326 lines
9.3 KiB
C
326 lines
9.3 KiB
C
/*
|
|
* Adaptec AAC series RAID controller driver
|
|
* (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
|
|
*
|
|
* based on the old aacraid driver that is..
|
|
* Adaptec aacraid device driver for Linux.
|
|
*
|
|
* Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.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/sched.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 <asm/semaphore.h>
|
|
|
|
#include "aacraid.h"
|
|
|
|
struct aac_common aac_config;
|
|
|
|
static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign)
|
|
{
|
|
unsigned char *base;
|
|
unsigned long size, align;
|
|
unsigned long fibsize = 4096;
|
|
unsigned long printfbufsiz = 256;
|
|
struct aac_init *init;
|
|
dma_addr_t phys;
|
|
|
|
size = fibsize + sizeof(struct aac_init) + commsize + commalign + printfbufsiz;
|
|
|
|
|
|
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;
|
|
|
|
dev->init = (struct aac_init *)(base + fibsize);
|
|
dev->init_pa = phys + fibsize;
|
|
|
|
init = dev->init;
|
|
|
|
init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION);
|
|
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. num_physpages is in
|
|
* system page units. 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.
|
|
*
|
|
* This assumes the memory is mapped zero->n, which isnt
|
|
* always true on real computers. It also has some slight problems
|
|
* with the GART on x86-64. I've btw never tried DMA from PCI space
|
|
* on this platform but don't be suprised if its problematic.
|
|
*/
|
|
#ifndef CONFIG_GART_IOMMU
|
|
if ((num_physpages << (PAGE_SHIFT - 12)) <= AAC_MAX_HOSTPHYSMEMPAGES) {
|
|
init->HostPhysMemPages =
|
|
cpu_to_le32(num_physpages << (PAGE_SHIFT-12));
|
|
} else
|
|
#endif
|
|
{
|
|
init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES);
|
|
}
|
|
|
|
|
|
/*
|
|
* Increment the base address by the amount already used
|
|
*/
|
|
base = base + fibsize + sizeof(struct aac_init);
|
|
phys = (dma_addr_t)((ulong)phys + fibsize + sizeof(struct aac_init));
|
|
/*
|
|
* Align the beginning of Headers to commalign
|
|
*/
|
|
align = (commalign - ((unsigned long)(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_LIST_HEAD(&q->pendingq);
|
|
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 = mem;
|
|
q->headers.consumer = 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 = fib_alloc(dev);
|
|
fib_init(fibctx);
|
|
|
|
cmd = (struct aac_close *) fib_data(fibctx);
|
|
|
|
cmd->command = cpu_to_le32(VM_CloseAll);
|
|
cmd->cid = cpu_to_le32(0xffffffff);
|
|
|
|
status = fib_send(ContainerCommand,
|
|
fibctx,
|
|
sizeof(struct aac_close),
|
|
FsaNormal,
|
|
1, 1,
|
|
NULL, NULL);
|
|
|
|
if (status == 0)
|
|
fib_complete(fibctx);
|
|
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.
|
|
*/
|
|
|
|
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 contigous 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)
|
|
{
|
|
/*
|
|
* Ok now init the communication subsystem
|
|
*/
|
|
|
|
dev->queues = (struct aac_queue_block *) kmalloc(sizeof(struct aac_queue_block), GFP_KERNEL);
|
|
if (dev->queues == NULL) {
|
|
printk(KERN_ERR "Error could not allocate comm region.\n");
|
|
return NULL;
|
|
}
|
|
memset(dev->queues, 0, sizeof(struct aac_queue_block));
|
|
|
|
if (aac_comm_init(dev)<0){
|
|
kfree(dev->queues);
|
|
return NULL;
|
|
}
|
|
/*
|
|
* Initialize the list of fibs
|
|
*/
|
|
if(fib_setup(dev)<0){
|
|
kfree(dev->queues);
|
|
return NULL;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&dev->fib_list);
|
|
init_completion(&dev->aif_completion);
|
|
|
|
return dev;
|
|
}
|
|
|
|
|