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path: root/drivers/scsi/hpsa.h
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Diffstat (limited to 'drivers/scsi/hpsa.h')
-rw-r--r--drivers/scsi/hpsa.h136
1 files changed, 112 insertions, 24 deletions
diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
index 6bd1949144b..a0502b3ac17 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 */