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[SCSI] megaraid_sas: Add support for Extended MSI-x vectors for 12Gb/s controller
This Driver will use more than 8 MSI-x support provided by Invader/Fury max upto 128 MSI-x. [jejb: fix checkpatch warning] Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com> Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Sumit.Saxena@lsi.com
James Bottomley
parent
5d0d908d44
commit
d46a3ad679
4 changed files with 136 additions and 43 deletions
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@ -786,7 +786,7 @@ struct megasas_ctrl_info {
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#define MEGASAS_INT_CMDS 32
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#define MEGASAS_SKINNY_INT_CMDS 5
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#define MEGASAS_MAX_MSIX_QUEUES 16
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#define MEGASAS_MAX_MSIX_QUEUES 128
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/*
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* FW can accept both 32 and 64 bit SGLs. We want to allocate 32/64 bit
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* SGLs based on the size of dma_addr_t
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@ -811,6 +811,11 @@ struct megasas_ctrl_info {
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#define MFI_1068_PCSR_OFFSET 0x84
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#define MFI_1068_FW_HANDSHAKE_OFFSET 0x64
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#define MFI_1068_FW_READY 0xDDDD0000
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#define MR_MAX_REPLY_QUEUES_OFFSET 0X0000001F
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#define MR_MAX_REPLY_QUEUES_EXT_OFFSET 0X003FC000
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#define MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT 14
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#define MR_MAX_MSIX_REG_ARRAY 16
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/*
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* register set for both 1068 and 1078 controllers
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* structure extended for 1078 registers
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@ -920,6 +925,15 @@ union megasas_sgl_frame {
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} __attribute__ ((packed));
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typedef union _MFI_CAPABILITIES {
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struct {
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u32 support_fp_remote_lun:1;
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u32 support_additional_msix:1;
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u32 reserved:30;
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} mfi_capabilities;
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u32 reg;
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} MFI_CAPABILITIES;
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struct megasas_init_frame {
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u8 cmd; /*00h */
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@ -927,7 +941,7 @@ struct megasas_init_frame {
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u8 cmd_status; /*02h */
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u8 reserved_1; /*03h */
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u32 reserved_2; /*04h */
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MFI_CAPABILITIES driver_operations; /*04h*/
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u32 context; /*08h */
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u32 pad_0; /*0Ch */
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@ -1324,7 +1338,7 @@ struct megasas_instance {
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unsigned long base_addr;
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struct megasas_register_set __iomem *reg_set;
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u32 *reply_post_host_index_addr[MR_MAX_MSIX_REG_ARRAY];
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struct megasas_pd_list pd_list[MEGASAS_MAX_PD];
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u8 ld_ids[MEGASAS_MAX_LD_IDS];
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s8 init_id;
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@ -1393,6 +1407,7 @@ struct megasas_instance {
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long reset_flags;
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struct mutex reset_mutex;
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int throttlequeuedepth;
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u8 mask_interrupts;
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};
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enum {
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@ -1408,8 +1423,8 @@ struct megasas_instance_template {
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void (*fire_cmd)(struct megasas_instance *, dma_addr_t, \
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u32, struct megasas_register_set __iomem *);
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void (*enable_intr)(struct megasas_register_set __iomem *) ;
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void (*disable_intr)(struct megasas_register_set __iomem *);
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void (*enable_intr)(struct megasas_instance *);
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void (*disable_intr)(struct megasas_instance *);
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int (*clear_intr)(struct megasas_register_set __iomem *);
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@ -244,8 +244,10 @@ megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
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* @regs: MFI register set
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*/
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static inline void
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megasas_enable_intr_xscale(struct megasas_register_set __iomem * regs)
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megasas_enable_intr_xscale(struct megasas_instance *instance)
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{
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struct megasas_register_set __iomem *regs;
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regs = instance->reg_set;
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writel(0, &(regs)->outbound_intr_mask);
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/* Dummy readl to force pci flush */
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@ -257,9 +259,11 @@ megasas_enable_intr_xscale(struct megasas_register_set __iomem * regs)
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* @regs: MFI register set
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*/
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static inline void
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megasas_disable_intr_xscale(struct megasas_register_set __iomem * regs)
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megasas_disable_intr_xscale(struct megasas_instance *instance)
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{
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struct megasas_register_set __iomem *regs;
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u32 mask = 0x1f;
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regs = instance->reg_set;
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writel(mask, ®s->outbound_intr_mask);
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/* Dummy readl to force pci flush */
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readl(®s->outbound_intr_mask);
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@ -413,8 +417,10 @@ static struct megasas_instance_template megasas_instance_template_xscale = {
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* @regs: MFI register set
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*/
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static inline void
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megasas_enable_intr_ppc(struct megasas_register_set __iomem * regs)
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megasas_enable_intr_ppc(struct megasas_instance *instance)
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{
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struct megasas_register_set __iomem *regs;
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regs = instance->reg_set;
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writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
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writel(~0x80000000, &(regs)->outbound_intr_mask);
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@ -428,9 +434,11 @@ megasas_enable_intr_ppc(struct megasas_register_set __iomem * regs)
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* @regs: MFI register set
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*/
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static inline void
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megasas_disable_intr_ppc(struct megasas_register_set __iomem * regs)
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megasas_disable_intr_ppc(struct megasas_instance *instance)
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{
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struct megasas_register_set __iomem *regs;
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u32 mask = 0xFFFFFFFF;
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regs = instance->reg_set;
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writel(mask, ®s->outbound_intr_mask);
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/* Dummy readl to force pci flush */
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readl(®s->outbound_intr_mask);
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@ -531,8 +539,10 @@ static struct megasas_instance_template megasas_instance_template_ppc = {
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* @regs: MFI register set
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*/
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static inline void
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megasas_enable_intr_skinny(struct megasas_register_set __iomem *regs)
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megasas_enable_intr_skinny(struct megasas_instance *instance)
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{
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struct megasas_register_set __iomem *regs;
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regs = instance->reg_set;
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writel(0xFFFFFFFF, &(regs)->outbound_intr_mask);
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writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
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@ -546,9 +556,11 @@ megasas_enable_intr_skinny(struct megasas_register_set __iomem *regs)
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* @regs: MFI register set
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*/
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static inline void
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megasas_disable_intr_skinny(struct megasas_register_set __iomem *regs)
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megasas_disable_intr_skinny(struct megasas_instance *instance)
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{
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struct megasas_register_set __iomem *regs;
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u32 mask = 0xFFFFFFFF;
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regs = instance->reg_set;
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writel(mask, ®s->outbound_intr_mask);
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/* Dummy readl to force pci flush */
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readl(®s->outbound_intr_mask);
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@ -666,8 +678,10 @@ static struct megasas_instance_template megasas_instance_template_skinny = {
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* @regs: MFI register set
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*/
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static inline void
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megasas_enable_intr_gen2(struct megasas_register_set __iomem *regs)
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megasas_enable_intr_gen2(struct megasas_instance *instance)
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{
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struct megasas_register_set __iomem *regs;
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regs = instance->reg_set;
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writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
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/* write ~0x00000005 (4 & 1) to the intr mask*/
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@ -682,9 +696,11 @@ megasas_enable_intr_gen2(struct megasas_register_set __iomem *regs)
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* @regs: MFI register set
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*/
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static inline void
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megasas_disable_intr_gen2(struct megasas_register_set __iomem *regs)
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megasas_disable_intr_gen2(struct megasas_instance *instance)
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{
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struct megasas_register_set __iomem *regs;
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u32 mask = 0xFFFFFFFF;
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regs = instance->reg_set;
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writel(mask, ®s->outbound_intr_mask);
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/* Dummy readl to force pci flush */
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readl(®s->outbound_intr_mask);
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@ -1707,7 +1723,7 @@ void megasas_do_ocr(struct megasas_instance *instance)
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(instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
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*instance->consumer = MEGASAS_ADPRESET_INPROG_SIGN;
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}
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instance->instancet->disable_intr(instance->reg_set);
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instance->instancet->disable_intr(instance);
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instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT;
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instance->issuepend_done = 0;
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@ -2490,7 +2506,7 @@ process_fw_state_change_wq(struct work_struct *work)
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printk(KERN_NOTICE "megaraid_sas: FW detected to be in fault"
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"state, restarting it...\n");
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instance->instancet->disable_intr(instance->reg_set);
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instance->instancet->disable_intr(instance);
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atomic_set(&instance->fw_outstanding, 0);
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atomic_set(&instance->fw_reset_no_pci_access, 1);
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@ -2531,7 +2547,7 @@ process_fw_state_change_wq(struct work_struct *work)
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spin_lock_irqsave(&instance->hba_lock, flags);
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instance->adprecovery = MEGASAS_HBA_OPERATIONAL;
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spin_unlock_irqrestore(&instance->hba_lock, flags);
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instance->instancet->enable_intr(instance->reg_set);
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instance->instancet->enable_intr(instance);
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megasas_issue_pending_cmds_again(instance);
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instance->issuepend_done = 1;
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@ -2594,7 +2610,7 @@ megasas_deplete_reply_queue(struct megasas_instance *instance,
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}
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instance->instancet->disable_intr(instance->reg_set);
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instance->instancet->disable_intr(instance);
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instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT;
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instance->issuepend_done = 0;
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@ -2728,7 +2744,7 @@ megasas_transition_to_ready(struct megasas_instance *instance, int ocr)
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/*
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* Bring it to READY state; assuming max wait 10 secs
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*/
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instance->instancet->disable_intr(instance->reg_set);
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instance->instancet->disable_intr(instance);
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if ((instance->pdev->device ==
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PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
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(instance->pdev->device ==
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@ -3374,7 +3390,7 @@ megasas_issue_init_mfi(struct megasas_instance *instance)
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/*
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* disable the intr before firing the init frame to FW
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*/
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instance->instancet->disable_intr(instance->reg_set);
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instance->instancet->disable_intr(instance);
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/*
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* Issue the init frame in polled mode
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@ -3481,11 +3497,11 @@ static int megasas_init_fw(struct megasas_instance *instance)
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{
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u32 max_sectors_1;
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u32 max_sectors_2;
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u32 tmp_sectors, msix_enable;
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u32 tmp_sectors, msix_enable, scratch_pad_2;
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struct megasas_register_set __iomem *reg_set;
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struct megasas_ctrl_info *ctrl_info;
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unsigned long bar_list;
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int i;
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int i, loop, fw_msix_count = 0;
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/* Find first memory bar */
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bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
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@ -3537,21 +3553,49 @@ static int megasas_init_fw(struct megasas_instance *instance)
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if (megasas_transition_to_ready(instance, 0))
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goto fail_ready_state;
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/*
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* MSI-X host index 0 is common for all adapter.
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* It is used for all MPT based Adapters.
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*/
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instance->reply_post_host_index_addr[0] =
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(u32 *)((u8 *)instance->reg_set +
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MPI2_REPLY_POST_HOST_INDEX_OFFSET);
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/* Check if MSI-X is supported while in ready state */
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msix_enable = (instance->instancet->read_fw_status_reg(reg_set) &
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0x4000000) >> 0x1a;
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if (msix_enable && !msix_disable) {
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scratch_pad_2 = readl
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(&instance->reg_set->outbound_scratch_pad_2);
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/* Check max MSI-X vectors */
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if ((instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) ||
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(instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
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(instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
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instance->msix_vectors = (readl(&instance->reg_set->
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outbound_scratch_pad_2
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) & 0x1F) + 1;
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if (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) {
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instance->msix_vectors = (scratch_pad_2
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& MR_MAX_REPLY_QUEUES_OFFSET) + 1;
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fw_msix_count = instance->msix_vectors;
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if (msix_vectors)
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instance->msix_vectors =
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min(msix_vectors,
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instance->msix_vectors);
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} else if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER)
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|| (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
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/* Invader/Fury supports more than 8 MSI-X */
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instance->msix_vectors = ((scratch_pad_2
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& MR_MAX_REPLY_QUEUES_EXT_OFFSET)
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>> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1;
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fw_msix_count = instance->msix_vectors;
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/* Save 1-15 reply post index address to local memory
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* Index 0 is already saved from reg offset
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* MPI2_REPLY_POST_HOST_INDEX_OFFSET
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*/
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for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) {
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instance->reply_post_host_index_addr[loop] =
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(u32 *)((u8 *)instance->reg_set +
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MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
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+ (loop * 0x10));
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}
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if (msix_vectors)
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instance->msix_vectors = min(msix_vectors,
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instance->msix_vectors);
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} else
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instance->msix_vectors = 1;
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/* Don't bother allocating more MSI-X vectors than cpus */
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@ -3571,6 +3615,12 @@ static int megasas_init_fw(struct megasas_instance *instance)
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}
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} else
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instance->msix_vectors = 0;
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dev_info(&instance->pdev->dev, "[scsi%d]: FW supports"
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"<%d> MSIX vector,Online CPUs: <%d>,"
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"Current MSIX <%d>\n", instance->host->host_no,
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fw_msix_count, (unsigned int)num_online_cpus(),
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instance->msix_vectors);
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}
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/* Get operational params, sge flags, send init cmd to controller */
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@ -4166,6 +4216,7 @@ static int megasas_probe_one(struct pci_dev *pdev,
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if (megasas_init_fw(instance))
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goto fail_init_mfi;
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retry_irq_register:
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/*
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* Register IRQ
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*/
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@ -4183,7 +4234,9 @@ static int megasas_probe_one(struct pci_dev *pdev,
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free_irq(
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instance->msixentry[j].vector,
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&instance->irq_context[j]);
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goto fail_irq;
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/* Retry irq register for IO_APIC */
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instance->msix_vectors = 0;
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goto retry_irq_register;
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}
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}
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} else {
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@ -4197,7 +4250,7 @@ static int megasas_probe_one(struct pci_dev *pdev,
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}
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}
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instance->instancet->enable_intr(instance->reg_set);
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instance->instancet->enable_intr(instance);
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/*
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* Store instance in PCI softstate
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@ -4237,7 +4290,7 @@ static int megasas_probe_one(struct pci_dev *pdev,
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megasas_mgmt_info.max_index--;
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pci_set_drvdata(pdev, NULL);
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instance->instancet->disable_intr(instance->reg_set);
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instance->instancet->disable_intr(instance);
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if (instance->msix_vectors)
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for (i = 0 ; i < instance->msix_vectors; i++)
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free_irq(instance->msixentry[i].vector,
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@ -4387,7 +4440,7 @@ megasas_suspend(struct pci_dev *pdev, pm_message_t state)
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tasklet_kill(&instance->isr_tasklet);
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pci_set_drvdata(instance->pdev, instance);
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instance->instancet->disable_intr(instance->reg_set);
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instance->instancet->disable_intr(instance);
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if (instance->msix_vectors)
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for (i = 0 ; i < instance->msix_vectors; i++)
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@ -4512,7 +4565,7 @@ megasas_resume(struct pci_dev *pdev)
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}
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}
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instance->instancet->enable_intr(instance->reg_set);
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instance->instancet->enable_intr(instance);
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instance->unload = 0;
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/*
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@ -4594,7 +4647,7 @@ static void megasas_detach_one(struct pci_dev *pdev)
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pci_set_drvdata(instance->pdev, NULL);
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instance->instancet->disable_intr(instance->reg_set);
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instance->instancet->disable_intr(instance);
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if (instance->msix_vectors)
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for (i = 0 ; i < instance->msix_vectors; i++)
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@ -4654,7 +4707,7 @@ static void megasas_shutdown(struct pci_dev *pdev)
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instance->unload = 1;
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megasas_flush_cache(instance);
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megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
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instance->instancet->disable_intr(instance->reg_set);
|
||||
instance->instancet->disable_intr(instance);
|
||||
if (instance->msix_vectors)
|
||||
for (i = 0 ; i < instance->msix_vectors; i++)
|
||||
free_irq(instance->msixentry[i].vector,
|
||||
|
|
|
|||
|
|
@ -101,8 +101,10 @@ extern int resetwaittime;
|
|||
* @regs: MFI register set
|
||||
*/
|
||||
void
|
||||
megasas_enable_intr_fusion(struct megasas_register_set __iomem *regs)
|
||||
megasas_enable_intr_fusion(struct megasas_instance *instance)
|
||||
{
|
||||
struct megasas_register_set __iomem *regs;
|
||||
regs = instance->reg_set;
|
||||
/* For Thunderbolt/Invader also clear intr on enable */
|
||||
writel(~0, ®s->outbound_intr_status);
|
||||
readl(®s->outbound_intr_status);
|
||||
|
|
@ -111,6 +113,7 @@ megasas_enable_intr_fusion(struct megasas_register_set __iomem *regs)
|
|||
|
||||
/* Dummy readl to force pci flush */
|
||||
readl(®s->outbound_intr_mask);
|
||||
instance->mask_interrupts = 0;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -118,10 +121,13 @@ megasas_enable_intr_fusion(struct megasas_register_set __iomem *regs)
|
|||
* @regs: MFI register set
|
||||
*/
|
||||
void
|
||||
megasas_disable_intr_fusion(struct megasas_register_set __iomem *regs)
|
||||
megasas_disable_intr_fusion(struct megasas_instance *instance)
|
||||
{
|
||||
u32 mask = 0xFFFFFFFF;
|
||||
u32 status;
|
||||
struct megasas_register_set __iomem *regs;
|
||||
regs = instance->reg_set;
|
||||
instance->mask_interrupts = 1;
|
||||
|
||||
writel(mask, ®s->outbound_intr_mask);
|
||||
/* Dummy readl to force pci flush */
|
||||
|
|
@ -643,6 +649,12 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
|
|||
init_frame->cmd = MFI_CMD_INIT;
|
||||
init_frame->cmd_status = 0xFF;
|
||||
|
||||
/* driver support Extended MSIX */
|
||||
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
|
||||
(instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
|
||||
init_frame->driver_operations.
|
||||
mfi_capabilities.support_additional_msix = 1;
|
||||
|
||||
init_frame->queue_info_new_phys_addr_lo = ioc_init_handle;
|
||||
init_frame->data_xfer_len = sizeof(struct MPI2_IOC_INIT_REQUEST);
|
||||
|
||||
|
|
@ -657,7 +669,7 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
|
|||
/*
|
||||
* disable the intr before firing the init frame
|
||||
*/
|
||||
instance->instancet->disable_intr(instance->reg_set);
|
||||
instance->instancet->disable_intr(instance);
|
||||
|
||||
for (i = 0; i < (10 * 1000); i += 20) {
|
||||
if (readl(&instance->reg_set->doorbell) & 1)
|
||||
|
|
@ -1911,8 +1923,15 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex)
|
|||
return IRQ_NONE;
|
||||
|
||||
wmb();
|
||||
writel((MSIxIndex << 24) | fusion->last_reply_idx[MSIxIndex],
|
||||
&instance->reg_set->reply_post_host_index);
|
||||
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
|
||||
(instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
|
||||
writel(((MSIxIndex & 0x7) << 24) |
|
||||
fusion->last_reply_idx[MSIxIndex],
|
||||
instance->reply_post_host_index_addr[MSIxIndex/8]);
|
||||
else
|
||||
writel((MSIxIndex << 24) |
|
||||
fusion->last_reply_idx[MSIxIndex],
|
||||
instance->reply_post_host_index_addr[0]);
|
||||
megasas_check_and_restore_queue_depth(instance);
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
|
@ -1954,6 +1973,9 @@ irqreturn_t megasas_isr_fusion(int irq, void *devp)
|
|||
struct megasas_instance *instance = irq_context->instance;
|
||||
u32 mfiStatus, fw_state;
|
||||
|
||||
if (instance->mask_interrupts)
|
||||
return IRQ_NONE;
|
||||
|
||||
if (!instance->msix_vectors) {
|
||||
mfiStatus = instance->instancet->clear_intr(instance->reg_set);
|
||||
if (!mfiStatus)
|
||||
|
|
@ -2219,7 +2241,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost)
|
|||
mutex_lock(&instance->reset_mutex);
|
||||
set_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
|
||||
instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT;
|
||||
instance->instancet->disable_intr(instance->reg_set);
|
||||
instance->instancet->disable_intr(instance);
|
||||
msleep(1000);
|
||||
|
||||
/* First try waiting for commands to complete */
|
||||
|
|
@ -2343,7 +2365,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost)
|
|||
|
||||
clear_bit(MEGASAS_FUSION_IN_RESET,
|
||||
&instance->reset_flags);
|
||||
instance->instancet->enable_intr(instance->reg_set);
|
||||
instance->instancet->enable_intr(instance);
|
||||
instance->adprecovery = MEGASAS_HBA_OPERATIONAL;
|
||||
|
||||
/* Re-fire management commands */
|
||||
|
|
@ -2405,7 +2427,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost)
|
|||
retval = FAILED;
|
||||
} else {
|
||||
clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
|
||||
instance->instancet->enable_intr(instance->reg_set);
|
||||
instance->instancet->enable_intr(instance);
|
||||
instance->adprecovery = MEGASAS_HBA_OPERATIONAL;
|
||||
}
|
||||
out:
|
||||
|
|
|
|||
|
|
@ -43,7 +43,7 @@
|
|||
#define HOST_DIAG_WRITE_ENABLE 0x80
|
||||
#define HOST_DIAG_RESET_ADAPTER 0x4
|
||||
#define MEGASAS_FUSION_MAX_RESET_TRIES 3
|
||||
#define MAX_MSIX_QUEUES_FUSION 16
|
||||
#define MAX_MSIX_QUEUES_FUSION 128
|
||||
|
||||
/* Invader defines */
|
||||
#define MPI2_TYPE_CUDA 0x2
|
||||
|
|
@ -62,6 +62,9 @@
|
|||
#define MEGASAS_RD_WR_PROTECT_CHECK_ALL 0x20
|
||||
#define MEGASAS_RD_WR_PROTECT_CHECK_NONE 0x60
|
||||
|
||||
#define MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET (0x0000030C)
|
||||
#define MPI2_REPLY_POST_HOST_INDEX_OFFSET (0x0000006C)
|
||||
|
||||
/*
|
||||
* Raid context flags
|
||||
*/
|
||||
|
|
|
|||
Loading…
Reference in a new issue