[SCSI] megaraid_sas: Add multiple MSI-X vector/multiple reply queue support
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 6b35625..9ffb92d 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -757,6 +757,7 @@
#define MEGASAS_INT_CMDS 32
#define MEGASAS_SKINNY_INT_CMDS 5
+#define MEGASAS_MAX_MSIX_QUEUES 16
/*
* FW can accept both 32 and 64 bit SGLs. We want to allocate 32/64 bit
* SGLs based on the size of dma_addr_t
@@ -1278,6 +1279,11 @@
struct megasas_instance *instance;
};
+struct megasas_irq_context {
+ struct megasas_instance *instance;
+ u32 MSIxIndex;
+};
+
struct megasas_instance {
u32 *producer;
@@ -1351,8 +1357,9 @@
/* Ptr to hba specific information */
void *ctrl_context;
- u8 msi_flag;
- struct msix_entry msixentry;
+ unsigned int msix_vectors;
+ struct msix_entry msixentry[MEGASAS_MAX_MSIX_QUEUES];
+ struct megasas_irq_context irq_context[MEGASAS_MAX_MSIX_QUEUES];
u64 map_id;
struct megasas_cmd *map_update_cmd;
unsigned long bar;