diff options
Diffstat (limited to 'drivers/scsi/hpsa.h')
| -rw-r--r-- | drivers/scsi/hpsa.h | 136 |
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 */ |