X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fscsi%2Faacraid%2Frkt.c;h=643f23b5ded884a2e11b79df58e36eaa27d66dc0;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=1b8ed47cfe30be3a7137141ff37da7140a48f336;hpb=f7f1b0f1e2fbadeab12d24236000e778aa9b1ead;p=linux-2.6.git diff --git a/drivers/scsi/aacraid/rkt.c b/drivers/scsi/aacraid/rkt.c index 1b8ed47cf..643f23b5d 100644 --- a/drivers/scsi/aacraid/rkt.c +++ b/drivers/scsi/aacraid/rkt.c @@ -28,307 +28,27 @@ * */ -#include -#include -#include -#include -#include -#include -#include #include -#include -#include -#include -#include -#include #include #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, 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 command 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, command); - /* - * Write the parameters into Mailboxes 1 - 4 - */ - rkt_writel(dev, InboundMailbox1, 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 = 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 = 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], 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; } @@ -343,98 +63,39 @@ static int aac_rkt_check_health(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); - /* - * 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, MUnit.OMRx[0]); - printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\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; }