*
*/
-#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;
- unsigned long bellbits;
- u8 intstat, mask;
- 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.
- */
- mask = ~(dev->OIMR);
- /* Check to see if this is our interrupt. If it isn't just return */
- if (intstat & mask)
- {
- bellbits = rkt_readl(dev, OutboundDoorbellReg);
- if (bellbits & DoorBellPrintfReady) {
- aac_printf(dev, le32_to_cpu(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]);
- }
- else if (bellbits & DoorBellAdapterNormRespReady) {
- aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
- rkt_writel(dev, MUnit.ODR,DoorBellAdapterNormRespReady);
- }
- 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;
-}
-
/**
- * rkt_sync_cmd - send a command and wait
- * @dev: Adapter
- * @command: Command to execute
- * @p1: first parameter
- * @ret: adapter status
+ * aac_rkt_ioremap
+ * @size: mapping resize request
*
- * This routine will send a synchronous comamnd to the adapter and wait
- * for its completion.
*/
-
-static int rkt_sync_cmd(struct aac_dev *dev, u32 command, u32 p1, u32 *status)
-{
- unsigned long start;
- int ok;
- /*
- * Write the command into Mailbox 0
- */
- rkt_writel(dev, InboundMailbox0, cpu_to_le32(command));
- /*
- * Write the parameters into Mailboxes 1 - 4
- */
- rkt_writel(dev, InboundMailbox1, cpu_to_le32(p1));
- rkt_writel(dev, InboundMailbox2, 0);
- rkt_writel(dev, InboundMailbox3, 0);
- rkt_writel(dev, InboundMailbox4, 0);
- /*
- * 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
- */
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
- }
- if (ok != 1) {
- /*
- * Restore interrupt mask even though we timed out
- */
- rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
- return -ETIMEDOUT;
- }
- /*
- * Pull the synch status from Mailbox 0.
- */
- if (status)
- *status = le32_to_cpu(rkt_readl(dev, IndexRegs.Mailbox[0]));
- /*
- * Clear the synch command doorbell.
- */
- rkt_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
- /*
- * Restore interrupt mask
- */
- 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)
-{
- u32 ret;
- rkt_sync_cmd(dev, BREAKPOINT_REQUEST, 0, &ret);
-}
-
-/**
- * aac_rkt_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_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, &ret);
- 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)
-{
- u32 status;
- struct aac_init *init;
-
- init = dev->init;
- init->HostElapsedSeconds = cpu_to_le32(get_seconds());
- /*
- * Tell the adapter we are back and up and running so it will scan
- * its command queues and enable our interrupts
- */
- dev->irq_mask = (DoorBellPrintfReady | OUTBOUNDDOORBELL_1 | OUTBOUNDDOORBELL_2 | OUTBOUNDDOORBELL_3 | OUTBOUNDDOORBELL_4);
- /*
- * 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, ~(u8)OUTBOUND_DOORBELL_INTERRUPT_MASK);
- rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
-
- // We can only use a 32 bit address here
- rkt_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa, &status);
-}
-
-/**
- * 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 = le32_to_cpu(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 {
- u32 Post_Command;
- u32 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], cpu_to_le32(paddr));
- rkt_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, &status);
- pci_free_consistent(dev->pdev, sizeof(struct POSTSTATUS),
- post, paddr);
- if ((buffer[0] == '0') && (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
- */
+ dev->IndexRegs = &dev->regs.rkt->IndexRegs;
return 0;
}
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);
- /*
- * Map in the registers from the adapter.
- */
- if((dev->regs.rkt = ioremap((unsigned long)dev->scsi_host_ptr->base, 8192))==NULL)
- {
- printk(KERN_WARNING "aacraid: unable to map i960.\n" );
- 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;
- }
- /*
- * Check to see if the board panic'd while booting.
- */
- if (rkt_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC) {
- printk(KERN_ERR "%s%d: adapter kernel panic'd.\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+180*HZ))
- {
- status = rkt_readl(dev, IndexRegs.Mailbox[7]) >> 16;
- printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %ld.\n", dev->name, instance, status);
- goto error_iounmap;
- }
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
- }
- if (request_irq(dev->scsi_host_ptr->irq, aac_rkt_intr, SA_SHIRQ|SA_INTERRUPT, "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_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_ioremap = aac_rkt_ioremap;
- if (aac_init_adapter(dev) == NULL)
- goto error_irq;
- /*
- * Start any kernel threads needed
- */
- dev->thread_pid = kernel_thread((int (*)(void *))aac_command_thread, dev, 0);
- if(dev->thread_pid < 0)
- {
- printk(KERN_ERR "aacraid: Unable to create rkt thread.\n");
- goto error_kfree;
- }
+ 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
+ * damage by at least ensuring the OS never issues more
+ * commands than we can handle. The Rocket adapters currently
+ * can only handle 246 commands and 8 AIFs at the same time,
+ * and in fact do notify us accordingly if we negotiate the
+ * FIB size. The problem that causes us to add this check is
+ * to ensure that we do not overdo it with the adapter when a
+ * hard coded FIB override is being utilized. This special
+ * case warrants this half baked, but convenient, check here.
+ */
+ if (dev->scsi_host_ptr->can_queue > (246 - AAC_NUM_MGT_FIB)) {
+ dev->init->MaxIoCommands = cpu_to_le32(246);
+ dev->scsi_host_ptr->can_queue = 246 - AAC_NUM_MGT_FIB;
+ }
+ }
/*
* 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_kfree:
- kfree(dev->queues);
-
-error_irq:
- free_irq(dev->scsi_host_ptr->irq, (void *)dev);
-
-error_iounmap:
- iounmap(dev->regs.rkt);
-
- return -1;
}