1 files changed, 112 insertions, 24 deletions

diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
index 6bd1949144b5..a0502b3ac17e 100644
--- a/drivers/scsi/hpsa.h
+++ b/drivers/scsi/hpsa.h
@@ -33,7 +33,7 @@ struct access_method {
                 struct CommandList *c);
         void (*set_intr_mask)(struct ctlr_info *h, unsigned long val);
         unsigned long (*fifo_full)(struct ctlr_info *h);
-        unsigned long (*intr_pending)(struct ctlr_info *h);
+        bool (*intr_pending)(struct ctlr_info *h);
         unsigned long (*command_completed)(struct ctlr_info *h);
 };
 
@@ -55,19 +55,20 @@ struct ctlr_info {
         char    *product_name;
         char    firm_ver[4]; /* Firmware version */
         struct pci_dev *pdev;
-        __u32   board_id;
+        u32     board_id;
         void __iomem *vaddr;
         unsigned long paddr;
         int     nr_cmds; /* Number of commands allowed on this controller */
         struct CfgTable __iomem *cfgtable;
+        int     max_sg_entries;
         int     interrupts_enabled;
         int     major;
         int     max_commands;
         int     commands_outstanding;
         int     max_outstanding; /* Debug */
         int     usage_count;  /* number of opens all all minor devices */
-#       define DOORBELL_INT     0
-#       define PERF_MODE_INT    1
+#       define PERF_MODE_INT    0
+#       define DOORBELL_INT     1
 #       define SIMPLE_MODE_INT  2
 #       define MEMQ_MODE_INT    3
         unsigned int intr[4];
@@ -93,6 +94,9 @@ struct ctlr_info {
         int                     nr_frees;
         int                     busy_initializing;
         int                     busy_scanning;
+        int                     scan_finished;
+        spinlock_t              scan_lock;
+        wait_queue_head_t       scan_wait_queue;
         struct mutex            busy_shutting_down;
         struct list_head        scan_list;
         struct completion       scan_wait;
@@ -102,6 +106,24 @@ struct ctlr_info {
         int ndevices; /* number of used elements in .dev[] array. */
 #define HPSA_MAX_SCSI_DEVS_PER_HBA 256
         struct hpsa_scsi_dev_t *dev[HPSA_MAX_SCSI_DEVS_PER_HBA];
+        /*
+         * Performant mode tables.
+         */
+        u32 trans_support;
+        u32 trans_offset;
+        struct TransTable_struct *transtable;
+        unsigned long transMethod;
+
+        /*
+         * Performant mode completion buffer
+         */
+        u64 *reply_pool;
+        dma_addr_t reply_pool_dhandle;
+        u64 *reply_pool_head;
+        size_t reply_pool_size;
+        unsigned char reply_pool_wraparound;
+        u32 *blockFetchTable;
+        unsigned char *hba_inquiry_data;
 };
 #define HPSA_ABORT_MSG 0
 #define HPSA_DEVICE_RESET_MSG 1
@@ -164,9 +186,16 @@ struct ctlr_info {
 #define HPSA_FIRMWARE_READY     0xffff0000 /* value in scratchpad register */
 
 #define HPSA_ERROR_BIT          0x02
-#define HPSA_TAG_CONTAINS_INDEX(tag) ((tag) & 0x04)
-#define HPSA_TAG_TO_INDEX(tag) ((tag) >> 3)
-#define HPSA_TAG_DISCARD_ERROR_BITS(tag) ((tag) & ~3)
+
+/* Performant mode flags */
+#define SA5_PERF_INTR_PENDING   0x04
+#define SA5_PERF_INTR_OFF       0x05
+#define SA5_OUTDB_STATUS_PERF_BIT       0x01
+#define SA5_OUTDB_CLEAR_PERF_BIT        0x01
+#define SA5_OUTDB_CLEAR         0xA0
+#define SA5_OUTDB_CLEAR_PERF_BIT        0x01
+#define SA5_OUTDB_STATUS        0x9C
+
 
 #define HPSA_INTR_ON    1
 #define HPSA_INTR_OFF   0
@@ -176,10 +205,8 @@ struct ctlr_info {
 static void SA5_submit_command(struct ctlr_info *h,
         struct CommandList *c)
 {
-#ifdef HPSA_DEBUG
-         printk(KERN_WARNING "hpsa: Sending %x - down to controller\n",
-                c->busaddr);
-#endif /* HPSA_DEBUG */
+        dev_dbg(&h->pdev->dev, "Sending %x, tag = %x\n", c->busaddr,
+                c->Header.Tag.lower);
         writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET);
         h->commands_outstanding++;
         if (h->commands_outstanding > h->max_outstanding)
@@ -202,6 +229,52 @@ static void SA5_intr_mask(struct ctlr_info *h, unsigned long val)
                         h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
         }
 }
+
+static void SA5_performant_intr_mask(struct ctlr_info *h, unsigned long val)
+{
+        if (val) { /* turn on interrupts */
+                h->interrupts_enabled = 1;
+                writel(0, h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
+        } else {
+                h->interrupts_enabled = 0;
+                writel(SA5_PERF_INTR_OFF,
+                        h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
+        }
+}
+
+static unsigned long SA5_performant_completed(struct ctlr_info *h)
+{
+        unsigned long register_value = FIFO_EMPTY;
+
+        /* flush the controller write of the reply queue by reading
+         * outbound doorbell status register.
+         */
+        register_value = readl(h->vaddr + SA5_OUTDB_STATUS);
+        /* msi auto clears the interrupt pending bit. */
+        if (!(h->msi_vector || h->msix_vector)) {
+                writel(SA5_OUTDB_CLEAR_PERF_BIT, h->vaddr + SA5_OUTDB_CLEAR);
+                /* Do a read in order to flush the write to the controller
+                 * (as per spec.)
+                 */
+                register_value = readl(h->vaddr + SA5_OUTDB_STATUS);
+        }
+
+        if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
+                register_value = *(h->reply_pool_head);
+                (h->reply_pool_head)++;
+                h->commands_outstanding--;
+        } else {
+                register_value = FIFO_EMPTY;
+        }
+        /* Check for wraparound */
+        if (h->reply_pool_head == (h->reply_pool + h->max_commands)) {
+                h->reply_pool_head = h->reply_pool;
+                h->reply_pool_wraparound ^= 1;
+        }
+
+        return register_value;
+}
+
 /*
  *  Returns true if fifo is full.
  *
@@ -228,10 +301,10 @@ static unsigned long SA5_completed(struct ctlr_info *h)
 
 #ifdef HPSA_DEBUG
         if (register_value != FIFO_EMPTY)
-                printk(KERN_INFO "hpsa:  Read %lx back from board\n",
+                dev_dbg(&h->pdev->dev, "Read %lx back from board\n",
                         register_value);
         else
-                printk(KERN_INFO "hpsa:  FIFO Empty read\n");
+                dev_dbg(&h->pdev->dev, "hpsa: FIFO Empty read\n");
 #endif
 
         return register_value;
@@ -239,18 +312,28 @@ static unsigned long SA5_completed(struct ctlr_info *h)
 /*
  *      Returns true if an interrupt is pending..
  */
-static unsigned long SA5_intr_pending(struct ctlr_info *h)
+static bool SA5_intr_pending(struct ctlr_info *h)
 {
         unsigned long register_value  =
                 readl(h->vaddr + SA5_INTR_STATUS);
-#ifdef HPSA_DEBUG
-        printk(KERN_INFO "hpsa: intr_pending %lx\n", register_value);
-#endif  /* HPSA_DEBUG */
-        if (register_value &  SA5_INTR_PENDING)
-                return  1;
-        return 0 ;
+        dev_dbg(&h->pdev->dev, "intr_pending %lx\n", register_value);
+        return register_value & SA5_INTR_PENDING;
 }
 
+static bool SA5_performant_intr_pending(struct ctlr_info *h)
+{
+        unsigned long register_value = readl(h->vaddr + SA5_INTR_STATUS);
+
+        if (!register_value)
+                return false;
+
+        if (h->msi_vector || h->msix_vector)
+                return true;
+
+        /* Read outbound doorbell to flush */
+        register_value = readl(h->vaddr + SA5_OUTDB_STATUS);
+        return register_value & SA5_OUTDB_STATUS_PERF_BIT;
+}
 
 static struct access_method SA5_access = {
         SA5_submit_command,
@@ -260,14 +343,19 @@ static struct access_method SA5_access = {
         SA5_completed,
 };
 
+static struct access_method SA5_performant_access = {
+        SA5_submit_command,
+        SA5_performant_intr_mask,
+        SA5_fifo_full,
+        SA5_performant_intr_pending,
+        SA5_performant_completed,
+};
+
 struct board_type {
-        __u32   board_id;
+        u32     board_id;
         char    *product_name;
         struct access_method *access;
 };
 
-
-/* end of old hpsa_scsi.h file */
-
 #endif /* HPSA_H */