diff options
Diffstat (limited to 'drivers/scsi/aacraid/rkt.c')
| -rw-r--r-- | drivers/scsi/aacraid/rkt.c | 461 |
1 files changed, 17 insertions, 444 deletions
diff --git a/drivers/scsi/aacraid/rkt.c b/drivers/scsi/aacraid/rkt.c index f850c3a..643f23b 100644 --- a/drivers/scsi/aacraid/rkt.c +++ b/drivers/scsi/aacraid/rkt.c @@ -28,389 +28,27 @@ * */ -#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/delay.h> -#include <linux/completion.h> -#include <linux/time.h> -#include <linux/interrupt.h> -#include <asm/semaphore.h> #include <scsi/scsi_host.h> #include "aacraid.h" -static irqreturn_t aac_rkt_intr(int irq, void *dev_id, struct pt_regs *regs) -{ - struct aac_dev *dev = dev_id; - - if (dev->new_comm_interface) { - u32 Index = rkt_readl(dev, MUnit.OutboundQueue); - if (Index == 0xFFFFFFFFL) - Index = rkt_readl(dev, MUnit.OutboundQueue); - if (Index != 0xFFFFFFFFL) { - do { - if (aac_intr_normal(dev, Index)) { - rkt_writel(dev, MUnit.OutboundQueue, Index); - rkt_writel(dev, MUnit.ODR, DoorBellAdapterNormRespReady); - } - Index = rkt_readl(dev, MUnit.OutboundQueue); - } while (Index != 0xFFFFFFFFL); - return IRQ_HANDLED; - } - } else { - unsigned long bellbits; - u8 intstat; - intstat = rkt_readb(dev, MUnit.OISR); - /* - * Read mask and invert because drawbridge is reversed. - * This allows us to only service interrupts that have - * been enabled. - * Check to see if this is our interrupt. If it isn't just return - */ - if (intstat & ~(dev->OIMR)) - { - bellbits = rkt_readl(dev, OutboundDoorbellReg); - if (bellbits & DoorBellPrintfReady) { - aac_printf(dev, rkt_readl (dev, IndexRegs.Mailbox[5])); - rkt_writel(dev, MUnit.ODR,DoorBellPrintfReady); - rkt_writel(dev, InboundDoorbellReg,DoorBellPrintfDone); - } - else if (bellbits & DoorBellAdapterNormCmdReady) { - rkt_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdReady); - aac_command_normal(&dev->queues->queue[HostNormCmdQueue]); -// rkt_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdReady); - } - else if (bellbits & DoorBellAdapterNormRespReady) { - rkt_writel(dev, MUnit.ODR,DoorBellAdapterNormRespReady); - aac_response_normal(&dev->queues->queue[HostNormRespQueue]); - } - else if (bellbits & DoorBellAdapterNormCmdNotFull) { - rkt_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull); - } - else if (bellbits & DoorBellAdapterNormRespNotFull) { - rkt_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull); - rkt_writel(dev, MUnit.ODR, DoorBellAdapterNormRespNotFull); - } - return IRQ_HANDLED; - } - } - return IRQ_NONE; -} - -/** - * aac_rkt_disable_interrupt - Disable interrupts - * @dev: Adapter - */ - -static void aac_rkt_disable_interrupt(struct aac_dev *dev) -{ - rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff); -} - -/** - * rkt_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 rkt_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 - */ - rkt_writel(dev, InboundMailbox0, command); - /* - * Write the parameters into Mailboxes 1 - 6 - */ - rkt_writel(dev, InboundMailbox1, p1); - rkt_writel(dev, InboundMailbox2, p2); - rkt_writel(dev, InboundMailbox3, p3); - rkt_writel(dev, InboundMailbox4, p4); - /* - * Clear the synch command doorbell to start on a clean slate. - */ - rkt_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0); - /* - * Disable doorbell interrupts - */ - rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff); - /* - * Force the completion of the mask register write before issuing - * the interrupt. - */ - rkt_readb (dev, MUnit.OIMR); - /* - * Signal that there is a new synch command - */ - rkt_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0); - - ok = 0; - start = jiffies; - - /* - * Wait up to 30 seconds - */ - while (time_before(jiffies, start+30*HZ)) - { - udelay(5); /* Delay 5 microseconds to let Mon960 get info. */ - /* - * Mon960 will set doorbell0 bit when it has completed the command. - */ - if (rkt_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) { - /* - * Clear the doorbell. - */ - rkt_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0); - ok = 1; - break; - } - /* - * Yield the processor in case we are slow - */ - msleep(1); - } - if (ok != 1) { - /* - * Restore interrupt mask even though we timed out - */ - if (dev->new_comm_interface) - rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7); - else - rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb); - return -ETIMEDOUT; - } - /* - * Pull the synch status from Mailbox 0. - */ - if (status) - *status = rkt_readl(dev, IndexRegs.Mailbox[0]); - if (r1) - *r1 = rkt_readl(dev, IndexRegs.Mailbox[1]); - if (r2) - *r2 = rkt_readl(dev, IndexRegs.Mailbox[2]); - if (r3) - *r3 = rkt_readl(dev, IndexRegs.Mailbox[3]); - if (r4) - *r4 = rkt_readl(dev, IndexRegs.Mailbox[4]); - /* - * Clear the synch command doorbell. - */ - rkt_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0); - /* - * Restore interrupt mask - */ - if (dev->new_comm_interface) - rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7); - else - rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb); - return 0; - -} - -/** - * aac_rkt_interrupt_adapter - interrupt adapter - * @dev: Adapter - * - * Send an interrupt to the i960 and breakpoint it. - */ - -static void aac_rkt_interrupt_adapter(struct aac_dev *dev) -{ - rkt_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0, - NULL, NULL, NULL, NULL, NULL); -} - /** - * aac_rkt_notify_adapter - send an event to the adapter - * @dev: Adapter - * @event: Event to send + * aac_rkt_ioremap + * @size: mapping resize request * - * Notify the i960 that something it probably cares about has - * happened. */ - -static void aac_rkt_notify_adapter(struct aac_dev *dev, u32 event) +static int aac_rkt_ioremap(struct aac_dev * dev, u32 size) { - switch (event) { - - case AdapNormCmdQue: - rkt_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1); - break; - case HostNormRespNotFull: - rkt_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4); - break; - case AdapNormRespQue: - rkt_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2); - break; - case HostNormCmdNotFull: - rkt_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3); - break; - case HostShutdown: -// rkt_sync_cmd(dev, HOST_CRASHING, 0, 0, 0, 0, 0, 0, -// NULL, NULL, NULL, NULL, NULL); - break; - case FastIo: - rkt_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6); - break; - case AdapPrintfDone: - rkt_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5); - break; - default: - BUG(); - break; + if (!size) { + iounmap(dev->regs.rkt); + return 0; } -} - -/** - * aac_rkt_start_adapter - activate adapter - * @dev: Adapter - * - * Start up processing on an i960 based AAC adapter - */ - -static void aac_rkt_start_adapter(struct aac_dev *dev) -{ - struct aac_init *init; - - init = dev->init; - init->HostElapsedSeconds = cpu_to_le32(get_seconds()); - // We can only use a 32 bit address here - rkt_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa, - 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL); -} - -/** - * aac_rkt_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_rkt_check_health(struct aac_dev *dev) -{ - u32 status = rkt_readl(dev, MUnit.OMRx[0]); - - /* - * Check to see if the board failed any self tests. - */ - if (status & SELF_TEST_FAILED) + dev->base = dev->regs.rkt = ioremap(dev->scsi_host_ptr->base, size); + if (dev->base == NULL) return -1; - /* - * Check to see if the board panic'd. - */ - if (status & KERNEL_PANIC) { - char * buffer; - struct POSTSTATUS { - __le32 Post_Command; - __le32 Post_Address; - } * post; - dma_addr_t paddr, baddr; - int ret; - - if ((status & 0xFF000000L) == 0xBC000000L) - return (status >> 16) & 0xFF; - buffer = pci_alloc_consistent(dev->pdev, 512, &baddr); - ret = -2; - if (buffer == NULL) - return ret; - post = pci_alloc_consistent(dev->pdev, - sizeof(struct POSTSTATUS), &paddr); - if (post == NULL) { - pci_free_consistent(dev->pdev, 512, buffer, baddr); - return ret; - } - memset(buffer, 0, 512); - post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS); - post->Post_Address = cpu_to_le32(baddr); - rkt_writel(dev, MUnit.IMRx[0], paddr); - rkt_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, 0, 0, 0, 0, 0, - NULL, NULL, NULL, NULL, NULL); - pci_free_consistent(dev->pdev, sizeof(struct POSTSTATUS), - post, paddr); - if ((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X'))) { - ret = (buffer[2] <= '9') ? (buffer[2] - '0') : (buffer[2] - 'A' + 10); - ret <<= 4; - ret += (buffer[3] <= '9') ? (buffer[3] - '0') : (buffer[3] - 'A' + 10); - } - pci_free_consistent(dev->pdev, 512, buffer, baddr); - return ret; - } - /* - * Wait for the adapter to be up and running. - */ - if (!(status & KERNEL_UP_AND_RUNNING)) - return -3; - /* - * Everything is OK - */ - return 0; -} - -/** - * aac_rkt_send - * @fib: fib to issue - * - * Will send a fib, returning 0 if successful. - */ -static int aac_rkt_send(struct fib * fib) -{ - u64 addr = fib->hw_fib_pa; - struct aac_dev *dev = fib->dev; - volatile void __iomem *device = dev->regs.rkt; - u32 Index; - - dprintk((KERN_DEBUG "%p->aac_rkt_send(%p->%llx)\n", dev, fib, addr)); - Index = rkt_readl(dev, MUnit.InboundQueue); - if (Index == 0xFFFFFFFFL) - Index = rkt_readl(dev, MUnit.InboundQueue); - dprintk((KERN_DEBUG "Index = 0x%x\n", Index)); - if (Index == 0xFFFFFFFFL) - return Index; - device += Index; - dprintk((KERN_DEBUG "entry = %x %x %u\n", (u32)(addr & 0xffffffff), - (u32)(addr >> 32), (u32)le16_to_cpu(fib->hw_fib->header.Size))); - writel((u32)(addr & 0xffffffff), device); - device += sizeof(u32); - writel((u32)(addr >> 32), device); - device += sizeof(u32); - writel(le16_to_cpu(fib->hw_fib->header.Size), device); - rkt_writel(dev, MUnit.InboundQueue, Index); - dprintk((KERN_DEBUG "aac_rkt_send - return 0\n")); - return 0; -} - -static int aac_rkt_restart_adapter(struct aac_dev *dev) -{ - u32 var; - - printk(KERN_ERR "%s%d: adapter kernel panic'd.\n", - dev->name, dev->id); - - if (aac_rkt_check_health(dev) <= 0) - return 1; - if (rkt_sync_cmd(dev, IOP_RESET, 0, 0, 0, 0, 0, 0, - &var, NULL, NULL, NULL, NULL)) - return 1; - if (var != 0x00000001) - return 1; - if (rkt_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC) - return 1; + dev->IndexRegs = &dev->regs.rkt->IndexRegs; return 0; } @@ -425,74 +63,18 @@ static int aac_rkt_restart_adapter(struct aac_dev *dev) int aac_rkt_init(struct aac_dev *dev) { - unsigned long start; - unsigned long status; - int instance; - const char * name; - - instance = dev->id; - name = dev->name; + int retval; + extern int _aac_rx_init(struct aac_dev *dev); + extern void aac_rx_start_adapter(struct aac_dev *dev); /* - * Check to see if the board panic'd while booting. - */ - if (rkt_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC) - if (aac_rkt_restart_adapter(dev)) - goto error_iounmap; - /* - * Check to see if the board failed any self tests. - */ - if (rkt_readl(dev, MUnit.OMRx[0]) & 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 (rkt_readl(dev, MUnit.OMRx[0]) & 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 (!(rkt_readl(dev, MUnit.OMRx[0]) & KERNEL_UP_AND_RUNNING)) - { - if(time_after(jiffies, start+startup_timeout*HZ)) - { - status = rkt_readl(dev, MUnit.OMRx[0]); - printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", - dev->name, instance, status); - goto error_iounmap; - } - msleep(1); - } - if (request_irq(dev->scsi_host_ptr->irq, aac_rkt_intr, IRQF_SHARED|IRQF_DISABLED, "aacraid", (void *)dev)<0) - { - printk(KERN_ERR "%s%d: Interrupt unavailable.\n", name, instance); - goto error_iounmap; - } - /* * Fill in the function dispatch table. */ - dev->a_ops.adapter_interrupt = aac_rkt_interrupt_adapter; - dev->a_ops.adapter_disable_int = aac_rkt_disable_interrupt; - dev->a_ops.adapter_notify = aac_rkt_notify_adapter; - dev->a_ops.adapter_sync_cmd = rkt_sync_cmd; - dev->a_ops.adapter_check_health = aac_rkt_check_health; - dev->a_ops.adapter_send = aac_rkt_send; - - /* - * First clear out all interrupts. Then enable the one's that we - * can handle. - */ - rkt_writeb(dev, MUnit.OIMR, 0xff); - rkt_writel(dev, MUnit.ODR, 0xffffffff); - rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb); + dev->a_ops.adapter_ioremap = aac_rkt_ioremap; - if (aac_init_adapter(dev) == NULL) - goto error_irq; + retval = _aac_rx_init(dev); + if (retval) + return retval; if (dev->new_comm_interface) { /* * FIB Setup has already been done, but we can minimize the @@ -509,20 +91,11 @@ int aac_rkt_init(struct aac_dev *dev) dev->init->MaxIoCommands = cpu_to_le32(246); dev->scsi_host_ptr->can_queue = 246 - AAC_NUM_MGT_FIB; } - rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7); } /* * Tell the adapter that all is configured, and it can start * accepting requests */ - aac_rkt_start_adapter(dev); + aac_rx_start_adapter(dev); return 0; - -error_irq: - rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff); - free_irq(dev->scsi_host_ptr->irq, (void *)dev); - -error_iounmap: - - return -1; } |
