Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff
[linux-2.6.git] / drivers / scsi / aacraid / rkt.c
index 1b8ed47..7a23e02 100644 (file)
 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);
+
+       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 if (bellbits & DoorBellAdapterNormRespNotFull) {
-                       rkt_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
-                       rkt_writel(dev, MUnit.ODR, DoorBellAdapterNormRespNotFull);
+       } 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_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
@@ -98,7 +125,9 @@ static irqreturn_t aac_rkt_intr(int irq, void *dev_id, struct pt_regs *regs)
  *     for its completion.
  */
 
-static int rkt_sync_cmd(struct aac_dev *dev, u32 command, u32 p1, u32 *status)
+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;
@@ -107,12 +136,12 @@ static int rkt_sync_cmd(struct aac_dev *dev, u32 command, u32 p1, u32 *status)
         */
        rkt_writel(dev, InboundMailbox0, command);
        /*
-        *      Write the parameters into Mailboxes 1 - 4
+        *      Write the parameters into Mailboxes 1 - 6
         */
        rkt_writel(dev, InboundMailbox1, p1);
-       rkt_writel(dev, InboundMailbox2, 0);
-       rkt_writel(dev, InboundMailbox3, 0);
-       rkt_writel(dev, InboundMailbox4, 0);
+       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.
         */
@@ -154,14 +183,16 @@ static int rkt_sync_cmd(struct aac_dev *dev, u32 command, u32 p1, u32 *status)
                /*
                 *      Yield the processor in case we are slow 
                 */
-               set_current_state(TASK_UNINTERRUPTIBLE);
-               schedule_timeout(1);
+               msleep(1);
        }
        if (ok != 1) {
                /*
                 *      Restore interrupt mask even though we timed out
                 */
-               rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
+               if (dev->new_comm_interface)
+                       rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
+               else
+                       rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
                return -ETIMEDOUT;
        }
        /*
@@ -169,6 +200,14 @@ static int rkt_sync_cmd(struct aac_dev *dev, u32 command, u32 p1, u32 *status)
         */
        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.
         */
@@ -176,7 +215,10 @@ static int rkt_sync_cmd(struct aac_dev *dev, u32 command, u32 p1, u32 *status)
        /*
         *      Restore interrupt mask
         */
-       rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
+       if (dev->new_comm_interface)
+               rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
+       else
+               rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
        return 0;
 
 }
@@ -190,8 +232,8 @@ static int rkt_sync_cmd(struct aac_dev *dev, u32 command, u32 p1, u32 *status)
 
 static void aac_rkt_interrupt_adapter(struct aac_dev *dev)
 {
-       u32 ret;
-       rkt_sync_cmd(dev, BREAKPOINT_REQUEST, 0, &ret);
+       rkt_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0,
+         NULL, NULL, NULL, NULL, NULL);
 }
 
 /**
@@ -220,7 +262,8 @@ static void aac_rkt_notify_adapter(struct aac_dev *dev, u32 event)
                rkt_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3);
                break;
        case HostShutdown:
-//             rkt_sync_cmd(dev, HOST_CRASHING, 0, 0, 0, 0, &ret);
+//             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);
@@ -243,27 +286,13 @@ static void aac_rkt_notify_adapter(struct aac_dev *dev, u32 event)
 
 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);
+       rkt_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
+         0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
 }
 
 /**
@@ -288,8 +317,8 @@ static int aac_rkt_check_health(struct aac_dev *dev)
        if (status & KERNEL_PANIC) {
                char * buffer;
                struct POSTSTATUS {
-                       u32 Post_Command;
-                       u32 Post_Address;
+                       __le32 Post_Command;
+                       __le32 Post_Address;
                } * post;
                dma_addr_t paddr, baddr;
                int ret;
@@ -310,10 +339,11 @@ static int aac_rkt_check_health(struct aac_dev *dev)
                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);
+                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')) {
+                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);
@@ -332,6 +362,39 @@ static int aac_rkt_check_health(struct aac_dev *dev)
        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;
+}
+
 /**
  *     aac_rkt_init    -       initialize an i960 based AAC card
  *     @dev: device to configure
@@ -352,13 +415,8 @@ int aac_rkt_init(struct aac_dev *dev)
        name     = dev->name;
 
        /*
-        *      Map in the registers from the adapter.
+        *      Check to see if the board panic'd while booting.
         */
-       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.
         */
@@ -393,8 +451,7 @@ int aac_rkt_init(struct aac_dev *dev)
                                        dev->name, instance, status);
                        goto error_iounmap;
                }
-               set_current_state(TASK_UNINTERRUPTIBLE);
-               schedule_timeout(1);
+               schedule_timeout_uninterruptible(1);
        }
        if (request_irq(dev->scsi_host_ptr->irq, aac_rkt_intr, SA_SHIRQ|SA_INTERRUPT, "aacraid", (void *)dev)<0) 
        {
@@ -405,21 +462,40 @@ int aac_rkt_init(struct aac_dev *dev)
         *      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;
 
-       if (aac_init_adapter(dev) == NULL)
-               goto error_irq;
        /*
-        *      Start any kernel threads needed
+        *      First clear out all interrupts.  Then enable the one's that we
+        *      can handle.
         */
-       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;
-       }       
+       rkt_writeb(dev, MUnit.OIMR, 0xff);
+       rkt_writel(dev, MUnit.ODR, 0xffffffff);
+       rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
+
+       if (aac_init_adapter(dev) == NULL)
+               goto error_irq;
+       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;
+               }
+               rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
+       }
        /*
         *      Tell the adapter that all is configured, and it can start
         *      accepting requests
@@ -427,14 +503,11 @@ int aac_rkt_init(struct aac_dev *dev)
        aac_rkt_start_adapter(dev);
        return 0;
 
-error_kfree:
-       kfree(dev->queues);
-
 error_irq:
+       rkt_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
        free_irq(dev->scsi_host_ptr->irq, (void *)dev);
 
 error_iounmap:
-       iounmap(dev->regs.rkt);
 
        return -1;
 }