diff options
Diffstat (limited to 'drivers/scsi/aacraid/src.c')
| -rw-r--r-- | drivers/scsi/aacraid/src.c | 833 |
1 files changed, 833 insertions, 0 deletions
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c new file mode 100644 index 00000000000..9c65aed2621 --- /dev/null +++ b/drivers/scsi/aacraid/src.c @@ -0,0 +1,833 @@ +/* + * 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: + * src.c + * + * Abstract: Hardware Device Interface for PMC SRC based controllers + * + */ + +#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/delay.h> +#include <linux/completion.h> +#include <linux/time.h> +#include <linux/interrupt.h> +#include <scsi/scsi_host.h> + +#include "aacraid.h" + +static irqreturn_t aac_src_intr_message(int irq, void *dev_id) +{ + struct aac_dev *dev = dev_id; + unsigned long bellbits, bellbits_shifted; + int our_interrupt = 0; + int isFastResponse; + u32 index, handle; + + bellbits = src_readl(dev, MUnit.ODR_R); + if (bellbits & PmDoorBellResponseSent) { + bellbits = PmDoorBellResponseSent; + /* handle async. status */ + src_writel(dev, MUnit.ODR_C, bellbits); + src_readl(dev, MUnit.ODR_C); + our_interrupt = 1; + index = dev->host_rrq_idx; + for (;;) { + isFastResponse = 0; + /* remove toggle bit (31) */ + handle = le32_to_cpu(dev->host_rrq[index]) & 0x7fffffff; + /* check fast response bit (30) */ + if (handle & 0x40000000) + isFastResponse = 1; + handle &= 0x0000ffff; + if (handle == 0) + break; + + aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL); + + dev->host_rrq[index++] = 0; + if (index == dev->scsi_host_ptr->can_queue + + AAC_NUM_MGT_FIB) + index = 0; + dev->host_rrq_idx = index; + } + } else { + bellbits_shifted = (bellbits >> SRC_ODR_SHIFT); + if (bellbits_shifted & DoorBellAifPending) { + src_writel(dev, MUnit.ODR_C, bellbits); + src_readl(dev, MUnit.ODR_C); + our_interrupt = 1; + /* handle AIF */ + aac_intr_normal(dev, 0, 2, 0, NULL); + } else if (bellbits_shifted & OUTBOUNDDOORBELL_0) { + unsigned long sflags; + struct list_head *entry; + int send_it = 0; + extern int aac_sync_mode; + + src_writel(dev, MUnit.ODR_C, bellbits); + src_readl(dev, MUnit.ODR_C); + + if (!aac_sync_mode) { + src_writel(dev, MUnit.ODR_C, bellbits); + src_readl(dev, MUnit.ODR_C); + our_interrupt = 1; + } + + if (dev->sync_fib) { + our_interrupt = 1; + if (dev->sync_fib->callback) + dev->sync_fib->callback(dev->sync_fib->callback_data, + dev->sync_fib); + spin_lock_irqsave(&dev->sync_fib->event_lock, sflags); + if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) { + dev->management_fib_count--; + up(&dev->sync_fib->event_wait); + } + spin_unlock_irqrestore(&dev->sync_fib->event_lock, sflags); + spin_lock_irqsave(&dev->sync_lock, sflags); + if (!list_empty(&dev->sync_fib_list)) { + entry = dev->sync_fib_list.next; + dev->sync_fib = list_entry(entry, struct fib, fiblink); + list_del(entry); + send_it = 1; + } else { + dev->sync_fib = NULL; + } + spin_unlock_irqrestore(&dev->sync_lock, sflags); + if (send_it) { + aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB, + (u32)dev->sync_fib->hw_fib_pa, 0, 0, 0, 0, 0, + NULL, NULL, NULL, NULL, NULL); + } + } + } + } + + if (our_interrupt) { + return IRQ_HANDLED; + } + return IRQ_NONE; +} + +/** + * aac_src_disable_interrupt - Disable interrupts + * @dev: Adapter + */ + +static void aac_src_disable_interrupt(struct aac_dev *dev) +{ + src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); +} + +/** + * aac_src_enable_interrupt_message - Enable interrupts + * @dev: Adapter + */ + +static void aac_src_enable_interrupt_message(struct aac_dev *dev) +{ + src_writel(dev, MUnit.OIMR, dev->OIMR = 0xfffffff8); +} + +/** + * src_sync_cmd - send a command and wait + * @dev: Adapter + * @command: Command to execute + * @p1: first parameter + * @ret: adapter status + * + * This routine will send a synchronous command to the adapter and wait + * for its completion. + */ + +static int src_sync_cmd(struct aac_dev *dev, u32 command, + u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, + u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4) +{ + unsigned long start; + int ok; + + /* + * Write the command into Mailbox 0 + */ + writel(command, &dev->IndexRegs->Mailbox[0]); + /* + * Write the parameters into Mailboxes 1 - 6 + */ + writel(p1, &dev->IndexRegs->Mailbox[1]); + writel(p2, &dev->IndexRegs->Mailbox[2]); + writel(p3, &dev->IndexRegs->Mailbox[3]); + writel(p4, &dev->IndexRegs->Mailbox[4]); + + /* + * Clear the synch command doorbell to start on a clean slate. + */ + src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); + + /* + * Disable doorbell interrupts + */ + src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); + + /* + * Force the completion of the mask register write before issuing + * the interrupt. + */ + src_readl(dev, MUnit.OIMR); + + /* + * Signal that there is a new synch command + */ + src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT); + + if (!dev->sync_mode || command != SEND_SYNCHRONOUS_FIB) { + ok = 0; + start = jiffies; + + /* + * Wait up to 5 minutes + */ + while (time_before(jiffies, start+300*HZ)) { + udelay(5); /* Delay 5 microseconds to let Mon960 get info. */ + /* + * Mon960 will set doorbell0 bit when it has completed the command. + */ + if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) { + /* + * Clear the doorbell. + */ + src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); + ok = 1; + break; + } + /* + * Yield the processor in case we are slow + */ + msleep(1); + } + if (unlikely(ok != 1)) { + /* + * Restore interrupt mask even though we timed out + */ + aac_adapter_enable_int(dev); + return -ETIMEDOUT; + } + /* + * Pull the synch status from Mailbox 0. + */ + if (status) + *status = readl(&dev->IndexRegs->Mailbox[0]); + if (r1) + *r1 = readl(&dev->IndexRegs->Mailbox[1]); + if (r2) + *r2 = readl(&dev->IndexRegs->Mailbox[2]); + if (r3) + *r3 = readl(&dev->IndexRegs->Mailbox[3]); + if (r4) + *r4 = readl(&dev->IndexRegs->Mailbox[4]); + + /* + * Clear the synch command doorbell. + */ + src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); + } + + /* + * Restore interrupt mask + */ + aac_adapter_enable_int(dev); + return 0; +} + +/** + * aac_src_interrupt_adapter - interrupt adapter + * @dev: Adapter + * + * Send an interrupt to the i960 and breakpoint it. + */ + +static void aac_src_interrupt_adapter(struct aac_dev *dev) +{ + src_sync_cmd(dev, BREAKPOINT_REQUEST, + 0, 0, 0, 0, 0, 0, + NULL, NULL, NULL, NULL, NULL); +} + +/** + * aac_src_notify_adapter - send an event to the adapter + * @dev: Adapter + * @event: Event to send + * + * Notify the i960 that something it probably cares about has + * happened. + */ + +static void aac_src_notify_adapter(struct aac_dev *dev, u32 event) +{ + switch (event) { + + case AdapNormCmdQue: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_1 << SRC_ODR_SHIFT); + break; + case HostNormRespNotFull: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_4 << SRC_ODR_SHIFT); + break; + case AdapNormRespQue: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_2 << SRC_ODR_SHIFT); + break; + case HostNormCmdNotFull: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_3 << SRC_ODR_SHIFT); + break; + case FastIo: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_6 << SRC_ODR_SHIFT); + break; + case AdapPrintfDone: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_5 << SRC_ODR_SHIFT); + break; + default: + BUG(); + break; + } +} + +/** + * aac_src_start_adapter - activate adapter + * @dev: Adapter + * + * Start up processing on an i960 based AAC adapter + */ + +static void aac_src_start_adapter(struct aac_dev *dev) +{ + struct aac_init *init; + + /* reset host_rrq_idx first */ + dev->host_rrq_idx = 0; + + init = dev->init; + init->HostElapsedSeconds = cpu_to_le32(get_seconds()); + + /* We can only use a 32 bit address here */ + src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa, + 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL); +} + +/** + * aac_src_check_health + * @dev: device to check if healthy + * + * Will attempt to determine if the specified adapter is alive and + * capable of handling requests, returning 0 if alive. + */ +static int aac_src_check_health(struct aac_dev *dev) +{ + u32 status = src_readl(dev, MUnit.OMR); + + /* + * Check to see if the board failed any self tests. + */ + if (unlikely(status & SELF_TEST_FAILED)) + return -1; + + /* + * Check to see if the board panic'd. + */ + if (unlikely(status & KERNEL_PANIC)) + return (status >> 16) & 0xFF; + /* + * Wait for the adapter to be up and running. + */ + if (unlikely(!(status & KERNEL_UP_AND_RUNNING))) + return -3; + /* + * Everything is OK + */ + return 0; +} + +/** + * aac_src_deliver_message + * @fib: fib to issue + * + * Will send a fib, returning 0 if successful. + */ +static int aac_src_deliver_message(struct fib *fib) +{ + struct aac_dev *dev = fib->dev; + struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue]; + unsigned long qflags; + u32 fibsize; + dma_addr_t address; + struct aac_fib_xporthdr *pFibX; + u16 hdr_size = le16_to_cpu(fib->hw_fib_va->header.Size); + + spin_lock_irqsave(q->lock, qflags); + q->numpending++; + spin_unlock_irqrestore(q->lock, qflags); + + if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { + /* Calculate the amount to the fibsize bits */ + fibsize = (hdr_size + 127) / 128 - 1; + if (fibsize > (ALIGN32 - 1)) + return -EMSGSIZE; + /* New FIB header, 32-bit */ + address = fib->hw_fib_pa; + fib->hw_fib_va->header.StructType = FIB_MAGIC2; + fib->hw_fib_va->header.SenderFibAddress = (u32)address; + fib->hw_fib_va->header.u.TimeStamp = 0; + BUG_ON(upper_32_bits(address) != 0L); + address |= fibsize; + } else { + /* Calculate the amount to the fibsize bits */ + fibsize = (sizeof(struct aac_fib_xporthdr) + hdr_size + 127) / 128 - 1; + if (fibsize > (ALIGN32 - 1)) + return -EMSGSIZE; + + /* Fill XPORT header */ + pFibX = (void *)fib->hw_fib_va - sizeof(struct aac_fib_xporthdr); + pFibX->Handle = cpu_to_le32(fib->hw_fib_va->header.Handle); + pFibX->HostAddress = cpu_to_le64(fib->hw_fib_pa); + pFibX->Size = cpu_to_le32(hdr_size); + + /* + * The xport header has been 32-byte aligned for us so that fibsize + * can be masked out of this address by hardware. -- BenC + */ + address = fib->hw_fib_pa - sizeof(struct aac_fib_xporthdr); + if (address & (ALIGN32 - 1)) + return -EINVAL; + address |= fibsize; + } + + src_writel(dev, MUnit.IQ_H, upper_32_bits(address) & 0xffffffff); + src_writel(dev, MUnit.IQ_L, address & 0xffffffff); + + return 0; +} + +/** + * aac_src_ioremap + * @size: mapping resize request + * + */ +static int aac_src_ioremap(struct aac_dev *dev, u32 size) +{ + if (!size) { + iounmap(dev->regs.src.bar1); + dev->regs.src.bar1 = NULL; + iounmap(dev->regs.src.bar0); + dev->base = dev->regs.src.bar0 = NULL; + return 0; + } + dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2), + AAC_MIN_SRC_BAR1_SIZE); + dev->base = NULL; + if (dev->regs.src.bar1 == NULL) + return -1; + dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size); + if (dev->base == NULL) { + iounmap(dev->regs.src.bar1); + dev->regs.src.bar1 = NULL; + return -1; + } + dev->IndexRegs = &((struct src_registers __iomem *) + dev->base)->u.tupelo.IndexRegs; + return 0; +} + +/** + * aac_srcv_ioremap + * @size: mapping resize request + * + */ +static int aac_srcv_ioremap(struct aac_dev *dev, u32 size) +{ + if (!size) { + iounmap(dev->regs.src.bar0); + dev->base = dev->regs.src.bar0 = NULL; + return 0; + } + dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size); + if (dev->base == NULL) + return -1; + dev->IndexRegs = &((struct src_registers __iomem *) + dev->base)->u.denali.IndexRegs; + return 0; +} + +static int aac_src_restart_adapter(struct aac_dev *dev, int bled) +{ + u32 var, reset_mask; + + if (bled >= 0) { + if (bled) + printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n", + dev->name, dev->id, bled); + bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS, + 0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL); + if (bled || (var != 0x00000001)) + return -EINVAL; + if (dev->supplement_adapter_info.SupportedOptions2 & + AAC_OPTION_DOORBELL_RESET) { + src_writel(dev, MUnit.IDR, reset_mask); + msleep(5000); /* Delay 5 seconds */ + } + } + + if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC) + return -ENODEV; + + if (startup_timeout < 300) + startup_timeout = 300; + + return 0; +} + +/** + * aac_src_select_comm - Select communications method + * @dev: Adapter + * @comm: communications method + */ +int aac_src_select_comm(struct aac_dev *dev, int comm) +{ + switch (comm) { + case AAC_COMM_MESSAGE: + dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message; + dev->a_ops.adapter_intr = aac_src_intr_message; + dev->a_ops.adapter_deliver = aac_src_deliver_message; + break; + default: + return 1; + } + return 0; +} + +/** + * aac_src_init - initialize an Cardinal Frey Bar card + * @dev: device to configure + * + */ + +int aac_src_init(struct aac_dev *dev) +{ + unsigned long start; + unsigned long status; + int restart = 0; + int instance = dev->id; + const char *name = dev->name; + + dev->a_ops.adapter_ioremap = aac_src_ioremap; + dev->a_ops.adapter_comm = aac_src_select_comm; + + dev->base_size = AAC_MIN_SRC_BAR0_SIZE; + if (aac_adapter_ioremap(dev, dev->base_size)) { + printk(KERN_WARNING "%s: unable to map adapter.\n", name); + goto error_iounmap; + } + + /* Failure to reset here is an option ... */ + dev->a_ops.adapter_sync_cmd = src_sync_cmd; + dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; + if ((aac_reset_devices || reset_devices) && + !aac_src_restart_adapter(dev, 0)) + ++restart; + /* + * Check to see if the board panic'd while booting. + */ + status = src_readl(dev, MUnit.OMR); + if (status & KERNEL_PANIC) { + if (aac_src_restart_adapter(dev, aac_src_check_health(dev))) + goto error_iounmap; + ++restart; + } + /* + * Check to see if the board failed any self tests. + */ + status = src_readl(dev, MUnit.OMR); + if (status & SELF_TEST_FAILED) { + printk(KERN_ERR "%s%d: adapter self-test failed.\n", + dev->name, instance); + goto error_iounmap; + } + /* + * Check to see if the monitor panic'd while booting. + */ + if (status & MONITOR_PANIC) { + printk(KERN_ERR "%s%d: adapter monitor panic.\n", + dev->name, instance); + goto error_iounmap; + } + start = jiffies; + /* + * Wait for the adapter to be up and running. Wait up to 3 minutes + */ + while (!((status = src_readl(dev, MUnit.OMR)) & + KERNEL_UP_AND_RUNNING)) { + if ((restart && + (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || + time_after(jiffies, start+HZ*startup_timeout)) { + printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", + dev->name, instance, status); + goto error_iounmap; + } + if (!restart && + ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || + time_after(jiffies, start + HZ * + ((startup_timeout > 60) + ? (startup_timeout - 60) + : (startup_timeout / 2))))) { + if (likely(!aac_src_restart_adapter(dev, + aac_src_check_health(dev)))) + start = jiffies; + ++restart; + } + msleep(1); + } + if (restart && aac_commit) + aac_commit = 1; + /* + * Fill in the common function dispatch table. + */ + dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; + dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; + dev->a_ops.adapter_notify = aac_src_notify_adapter; + dev->a_ops.adapter_sync_cmd = src_sync_cmd; + dev->a_ops.adapter_check_health = aac_src_check_health; + dev->a_ops.adapter_restart = aac_src_restart_adapter; + + /* + * First clear out all interrupts. Then enable the one's that we + * can handle. + */ + aac_adapter_comm(dev, AAC_COMM_MESSAGE); + aac_adapter_disable_int(dev); + src_writel(dev, MUnit.ODR_C, 0xffffffff); + aac_adapter_enable_int(dev); + + if (aac_init_adapter(dev) == NULL) + goto error_iounmap; + if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1) + goto error_iounmap; + + dev->msi = aac_msi && !pci_enable_msi(dev->pdev); + + if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr, + IRQF_SHARED, "aacraid", dev) < 0) { + + if (dev->msi) + pci_disable_msi(dev->pdev); + + printk(KERN_ERR "%s%d: Interrupt unavailable.\n", + name, instance); + goto error_iounmap; + } + dev->dbg_base = pci_resource_start(dev->pdev, 2); + dev->dbg_base_mapped = dev->regs.src.bar1; + dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE; + + aac_adapter_enable_int(dev); + + if (!dev->sync_mode) { + /* + * Tell the adapter that all is configured, and it can + * start accepting requests + */ + aac_src_start_adapter(dev); + } + return 0; + +error_iounmap: + + return -1; +} + +/** + * aac_srcv_init - initialize an SRCv card + * @dev: device to configure + * + */ + +int aac_srcv_init(struct aac_dev *dev) +{ + unsigned long start; + unsigned long status; + int restart = 0; + int instance = dev->id; + const char *name = dev->name; + + dev->a_ops.adapter_ioremap = aac_srcv_ioremap; + dev->a_ops.adapter_comm = aac_src_select_comm; + + dev->base_size = AAC_MIN_SRCV_BAR0_SIZE; + if (aac_adapter_ioremap(dev, dev->base_size)) { + printk(KERN_WARNING "%s: unable to map adapter.\n", name); + goto error_iounmap; + } + + /* Failure to reset here is an option ... */ + dev->a_ops.adapter_sync_cmd = src_sync_cmd; + dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; + if ((aac_reset_devices || reset_devices) && + !aac_src_restart_adapter(dev, 0)) + ++restart; + /* + * Check to see if flash update is running. + * Wait for the adapter to be up and running. Wait up to 5 minutes + */ + status = src_readl(dev, MUnit.OMR); + if (status & FLASH_UPD_PENDING) { + start = jiffies; + do { + status = src_readl(dev, MUnit.OMR); + if (time_after(jiffies, start+HZ*FWUPD_TIMEOUT)) { + printk(KERN_ERR "%s%d: adapter flash update failed.\n", + dev->name, instance); + goto error_iounmap; + } + } while (!(status & FLASH_UPD_SUCCESS) && + !(status & FLASH_UPD_FAILED)); + /* Delay 10 seconds. + * Because right now FW is doing a soft reset, + * do not read scratch pad register at this time + */ + ssleep(10); + } + /* + * Check to see if the board panic'd while booting. + */ + status = src_readl(dev, MUnit.OMR); + if (status & KERNEL_PANIC) { + if (aac_src_restart_adapter(dev, aac_src_check_health(dev))) + goto error_iounmap; + ++restart; + } + /* + * Check to see if the board failed any self tests. + */ + status = src_readl(dev, MUnit.OMR); + if (status & SELF_TEST_FAILED) { + printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance); + goto error_iounmap; + } + /* + * Check to see if the monitor panic'd while booting. + */ + if (status & MONITOR_PANIC) { + printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance); + goto error_iounmap; + } + start = jiffies; + /* + * Wait for the adapter to be up and running. Wait up to 3 minutes + */ + while (!((status = src_readl(dev, MUnit.OMR)) & + KERNEL_UP_AND_RUNNING) || + status == 0xffffffff) { + if ((restart && + (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || + time_after(jiffies, start+HZ*startup_timeout)) { + printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", + dev->name, instance, status); + goto error_iounmap; + } + if (!restart && + ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || + time_after(jiffies, start + HZ * + ((startup_timeout > 60) + ? (startup_timeout - 60) + : (startup_timeout / 2))))) { + if (likely(!aac_src_restart_adapter(dev, aac_src_check_health(dev)))) + start = jiffies; + ++restart; + } + msleep(1); + } + if (restart && aac_commit) + aac_commit = 1; + /* + * Fill in the common function dispatch table. + */ + dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; + dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; + dev->a_ops.adapter_notify = aac_src_notify_adapter; + dev->a_ops.adapter_sync_cmd = src_sync_cmd; + dev->a_ops.adapter_check_health = aac_src_check_health; + dev->a_ops.adapter_restart = aac_src_restart_adapter; + + /* + * First clear out all interrupts. Then enable the one's that we + * can handle. + */ + aac_adapter_comm(dev, AAC_COMM_MESSAGE); + aac_adapter_disable_int(dev); + src_writel(dev, MUnit.ODR_C, 0xffffffff); + aac_adapter_enable_int(dev); + + if (aac_init_adapter(dev) == NULL) + goto error_iounmap; + if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE2) + goto error_iounmap; + dev->msi = aac_msi && !pci_enable_msi(dev->pdev); + if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr, + IRQF_SHARED, "aacraid", dev) < 0) { + if (dev->msi) + pci_disable_msi(dev->pdev); + printk(KERN_ERR "%s%d: Interrupt unavailable.\n", + name, instance); + goto error_iounmap; + } + dev->dbg_base = dev->base_start; + dev->dbg_base_mapped = dev->base; + dev->dbg_size = dev->base_size; + + aac_adapter_enable_int(dev); + + if (!dev->sync_mode) { + /* + * Tell the adapter that all is configured, and it can + * start accepting requests + */ + aac_src_start_adapter(dev); + } + return 0; + +error_iounmap: + + return -1; +} + |