diff options
Diffstat (limited to 'drivers/scsi/megaraid')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.c | 139 | ||||
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.h | 4 |
2 files changed, 138 insertions, 5 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c index 012141378f3b..b6e43271883c 100644 --- a/drivers/scsi/megaraid/megaraid_sas.c +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -76,6 +76,10 @@ static struct pci_device_id megasas_pci_table[] = { /* gen2*/ {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)}, /* gen2*/ + {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)}, + /* skinny*/ + {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)}, + /* skinny*/ {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)}, /* xscale IOP, vega */ {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)}, @@ -335,6 +339,99 @@ static struct megasas_instance_template megasas_instance_template_ppc = { }; /** + * megasas_enable_intr_skinny - Enables interrupts + * @regs: MFI register set + */ +static inline void +megasas_enable_intr_skinny(struct megasas_register_set __iomem *regs) +{ + writel(0xFFFFFFFF, &(regs)->outbound_intr_mask); + + writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); + + /* Dummy readl to force pci flush */ + readl(®s->outbound_intr_mask); +} + +/** + * megasas_disable_intr_skinny - Disables interrupt + * @regs: MFI register set + */ +static inline void +megasas_disable_intr_skinny(struct megasas_register_set __iomem *regs) +{ + u32 mask = 0xFFFFFFFF; + writel(mask, ®s->outbound_intr_mask); + /* Dummy readl to force pci flush */ + readl(®s->outbound_intr_mask); +} + +/** + * megasas_read_fw_status_reg_skinny - returns the current FW status value + * @regs: MFI register set + */ +static u32 +megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem *regs) +{ + return readl(&(regs)->outbound_scratch_pad); +} + +/** + * megasas_clear_interrupt_skinny - Check & clear interrupt + * @regs: MFI register set + */ +static int +megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs) +{ + u32 status; + /* + * Check if it is our interrupt + */ + status = readl(®s->outbound_intr_status); + + if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) { + return 1; + } + + /* + * Clear the interrupt by writing back the same value + */ + writel(status, ®s->outbound_intr_status); + + /* + * dummy read to flush PCI + */ + readl(®s->outbound_intr_status); + + return 0; +} + +/** + * megasas_fire_cmd_skinny - Sends command to the FW + * @frame_phys_addr : Physical address of cmd + * @frame_count : Number of frames for the command + * @regs : MFI register set + */ +static inline void +megasas_fire_cmd_skinny(dma_addr_t frame_phys_addr, u32 frame_count, + struct megasas_register_set __iomem *regs) +{ + writel(0, &(regs)->inbound_high_queue_port); + writel((frame_phys_addr | (frame_count<<1))|1, + &(regs)->inbound_low_queue_port); +} + +static struct megasas_instance_template megasas_instance_template_skinny = { + + .fire_cmd = megasas_fire_cmd_skinny, + .enable_intr = megasas_enable_intr_skinny, + .disable_intr = megasas_disable_intr_skinny, + .clear_intr = megasas_clear_intr_skinny, + .read_fw_status_reg = megasas_read_fw_status_reg_skinny, +}; + + +/** * The following functions are defined for gen2 (deviceid : 0x78 0x79) * controllers */ @@ -1587,16 +1684,34 @@ megasas_transition_to_ready(struct megasas_instance* instance) /* * Set the CLR bit in inbound doorbell */ - writel(MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, - &instance->reg_set->inbound_doorbell); + if ((instance->pdev->device == \ + PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + + writel( + MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, + &instance->reg_set->reserved_0[0]); + } else { + writel( + MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, + &instance->reg_set->inbound_doorbell); + } max_wait = 2; cur_state = MFI_STATE_WAIT_HANDSHAKE; break; case MFI_STATE_BOOT_MESSAGE_PENDING: - writel(MFI_INIT_HOTPLUG, - &instance->reg_set->inbound_doorbell); + if ((instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + writel(MFI_INIT_HOTPLUG, + &instance->reg_set->reserved_0[0]); + } else + writel(MFI_INIT_HOTPLUG, + &instance->reg_set->inbound_doorbell); max_wait = 10; cur_state = MFI_STATE_BOOT_MESSAGE_PENDING; @@ -1607,7 +1722,15 @@ megasas_transition_to_ready(struct megasas_instance* instance) * Bring it to READY state; assuming max wait 10 secs */ instance->instancet->disable_intr(instance->reg_set); - writel(MFI_RESET_FLAGS, &instance->reg_set->inbound_doorbell); + if ((instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + writel(MFI_RESET_FLAGS, + &instance->reg_set->reserved_0[0]); + } else + writel(MFI_RESET_FLAGS, + &instance->reg_set->inbound_doorbell); max_wait = 60; cur_state = MFI_STATE_OPERATIONAL; @@ -2112,6 +2235,8 @@ static int megasas_init_mfi(struct megasas_instance *instance) * Map the message registers */ if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1078GEN2) || + (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) || + (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0079GEN2)) { instance->base_addr = pci_resource_start(instance->pdev, 1); } else { @@ -2142,6 +2267,10 @@ static int megasas_init_mfi(struct megasas_instance *instance) case PCI_DEVICE_ID_LSI_SAS0079GEN2: instance->instancet = &megasas_instance_template_gen2; break; + case PCI_DEVICE_ID_LSI_SAS0073SKINNY: + case PCI_DEVICE_ID_LSI_SAS0071SKINNY: + instance->instancet = &megasas_instance_template_skinny; + break; case PCI_DEVICE_ID_LSI_SAS1064R: case PCI_DEVICE_ID_DELL_PERC5: default: diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index 900359fd3fb9..365a96172070 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -30,6 +30,8 @@ #define PCI_DEVICE_ID_LSI_VERDE_ZCR 0x0413 #define PCI_DEVICE_ID_LSI_SAS1078GEN2 0x0078 #define PCI_DEVICE_ID_LSI_SAS0079GEN2 0x0079 +#define PCI_DEVICE_ID_LSI_SAS0073SKINNY 0x0073 +#define PCI_DEVICE_ID_LSI_SAS0071SKINNY 0x0071 /* * ===================================== @@ -584,6 +586,8 @@ struct megasas_ctrl_info { #define MFI_REPLY_1078_MESSAGE_INTERRUPT 0x80000000 #define MFI_REPLY_GEN2_MESSAGE_INTERRUPT 0x00000001 #define MFI_GEN2_ENABLE_INTERRUPT_MASK (0x00000001 | 0x00000004) +#define MFI_REPLY_SKINNY_MESSAGE_INTERRUPT 0x40000000 +#define MFI_SKINNY_ENABLE_INTERRUPT_MASK (0x00000001) /* * register set for both 1068 and 1078 controllers |