[SCSI] aacraid: Add new code for PMC-Sierra's SRC based controller family

Added new hardware device 0x28b interface for PMC-Sierra's SRC based
controller family.

- new src.c file for 0x28b specific functions
- new XPORT header required
- sync. command interface: doorbell bits shifted (SRC_ODR_SHIFT, SRC_IDR_SHIFT)
- async. Interface: different inbound queue handling, no outbound I2O
  queue available, using doorbell ("PmDoorBellResponseSent") and
  response buffer on the host ("host_rrq") for status
- changed AIF (adapter initiated FIBs) interface: "DoorBellAifPending"
  bit to inform about pending AIF, "AifRequest" command to read AIF,
  "NoMoreAifDataAvailable" to mark the end of the AIFs

Signed-off-by: Mahesh Rajashekhara <aacraid@pmc-sierra.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 96 insertions, 10 deletions

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 4dbcc055ac78..29ab00016b78 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -12,7 +12,7 @@
  *----------------------------------------------------------------------------*/
 
 #ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 26400
+# define AAC_DRIVER_BUILD 28000
 # define AAC_DRIVER_BRANCH "-ms"
 #endif
 #define MAXIMUM_NUM_CONTAINERS  32
@@ -277,6 +277,16 @@ enum aac_queue_types {
 
 #define         FsaNormal       1
 
+/* transport FIB header (PMC) */
+struct aac_fib_xporthdr {
+        u64     HostAddress;    /* FIB host address w/o xport header */
+        u32     Size;           /* FIB size excluding xport header */
+        u32     Handle;         /* driver handle to reference the FIB */
+        u64     Reserved[2];
+};
+
+#define         ALIGN32         32
+
 /*
  * Define the FIB. The FIB is the where all the requested data and
  * command information are put to the application on the FSA adapter.
@@ -394,7 +404,9 @@ enum fib_xfer_state {
         AdapterMicroFib                 = (1<<17),
         BIOSFibPath                     = (1<<18),
         FastResponseCapable             = (1<<19),
-        ApiFib                          = (1<<20)       // Its an API Fib.
+        ApiFib                          = (1<<20),      /* Its an API Fib */
+        /* PMC NEW COMM: There is no more AIF data pending */
+        NoMoreAifDataAvailable          = (1<<21)
 };
 
 /*
@@ -404,6 +416,7 @@ enum fib_xfer_state {
 
 #define ADAPTER_INIT_STRUCT_REVISION            3
 #define ADAPTER_INIT_STRUCT_REVISION_4          4 // rocket science
+#define ADAPTER_INIT_STRUCT_REVISION_6          6 /* PMC src */
 
 struct aac_init
 {
@@ -428,9 +441,15 @@ struct aac_init
 #define INITFLAGS_NEW_COMM_SUPPORTED    0x00000001
 #define INITFLAGS_DRIVER_USES_UTC_TIME  0x00000010
 #define INITFLAGS_DRIVER_SUPPORTS_PM    0x00000020
+#define INITFLAGS_NEW_COMM_TYPE1_SUPPORTED      0x00000041
         __le32  MaxIoCommands;  /* max outstanding commands */
         __le32  MaxIoSize;      /* largest I/O command */
         __le32  MaxFibSize;     /* largest FIB to adapter */
+        /* ADAPTER_INIT_STRUCT_REVISION_5 begins here */
+        __le32  MaxNumAif;      /* max number of aif */
+        /* ADAPTER_INIT_STRUCT_REVISION_6 begins here */
+        __le32  HostRRQ_AddrLow;
+        __le32  HostRRQ_AddrHigh;       /* Host RRQ (response queue) for SRC */
 };
 
 enum aac_log_level {
@@ -685,7 +704,7 @@ struct rx_inbound {
 #define OutboundDoorbellReg     MUnit.ODR
 
 struct rx_registers {
-        struct rx_mu_registers          MUnit;          /* 1300h - 1344h */
+        struct rx_mu_registers          MUnit;          /* 1300h - 1347h */
         __le32                          reserved1[2];   /* 1348h - 134ch */
         struct rx_inbound               IndexRegs;
 };
@@ -703,7 +722,7 @@ struct rx_registers {
 #define rkt_inbound rx_inbound
 
 struct rkt_registers {
-        struct rkt_mu_registers         MUnit;           /* 1300h - 1344h */
+        struct rkt_mu_registers         MUnit;           /* 1300h - 1347h */
         __le32                          reserved1[1006]; /* 1348h - 22fch */
         struct rkt_inbound              IndexRegs;       /* 2300h - */
 };
@@ -713,6 +732,44 @@ struct rkt_registers {
 #define rkt_writeb(AEP, CSR, value)     writeb(value, &((AEP)->regs.rkt->CSR))
 #define rkt_writel(AEP, CSR, value)     writel(value, &((AEP)->regs.rkt->CSR))
 
+/*
+ * PMC SRC message unit registers
+ */
+
+#define src_inbound rx_inbound
+
+struct src_mu_registers {
+                                /*      PCI*| Name */
+        __le32  reserved0[8];   /*      00h | Reserved */
+        __le32  IDR;            /*      20h | Inbound Doorbell Register */
+        __le32  IISR;           /*      24h | Inbound Int. Status Register */
+        __le32  reserved1[3];   /*      28h | Reserved */
+        __le32  OIMR;           /*      34h | Outbound Int. Mask Register */
+        __le32  reserved2[25];  /*      38h | Reserved */
+        __le32  ODR_R;          /*      9ch | Outbound Doorbell Read */
+        __le32  ODR_C;          /*      a0h | Outbound Doorbell Clear */
+        __le32  reserved3[6];   /*      a4h | Reserved */
+        __le32  OMR;            /*      bch | Outbound Message Register */
+        __le32  IQ_L;           /*  c0h | Inbound Queue (Low address) */
+        __le32  IQ_H;           /*  c4h | Inbound Queue (High address) */
+};
+
+struct src_registers {
+        struct src_mu_registers MUnit;  /* 00h - c7h */
+        __le32 reserved1[130790];       /* c8h - 7fc5fh */
+        struct src_inbound IndexRegs;   /* 7fc60h */
+};
+
+#define src_readb(AEP, CSR)             readb(&((AEP)->regs.src.bar0->CSR))
+#define src_readl(AEP, CSR)             readl(&((AEP)->regs.src.bar0->CSR))
+#define src_writeb(AEP, CSR, value)     writeb(value, \
+                                                &((AEP)->regs.src.bar0->CSR))
+#define src_writel(AEP, CSR, value)     writel(value, \
+                                                &((AEP)->regs.src.bar0->CSR))
+
+#define SRC_ODR_SHIFT           12
+#define SRC_IDR_SHIFT           9
+
 typedef void (*fib_callback)(void *ctxt, struct fib *fibctx);
 
 struct aac_fib_context {
@@ -879,6 +936,7 @@ struct aac_supplement_adapter_info
 #define AAC_OPTION_MU_RESET             cpu_to_le32(0x00000001)
 #define AAC_OPTION_IGNORE_RESET         cpu_to_le32(0x00000002)
 #define AAC_OPTION_POWER_MANAGEMENT     cpu_to_le32(0x00000004)
+#define AAC_OPTION_DOORBELL_RESET       cpu_to_le32(0x00004000)
 #define AAC_SIS_VERSION_V3      3
 #define AAC_SIS_SLOT_UNKNOWN    0xFF
 
@@ -940,6 +998,7 @@ struct aac_bus_info_response {
 #define AAC_OPT_SUPPLEMENT_ADAPTER_INFO cpu_to_le32(1<<16)
 #define AAC_OPT_NEW_COMM                cpu_to_le32(1<<17)
 #define AAC_OPT_NEW_COMM_64             cpu_to_le32(1<<18)
+#define AAC_OPT_NEW_COMM_TYPE1          cpu_to_le32(1<<28)
 
 struct aac_dev
 {
@@ -952,6 +1011,7 @@ struct aac_dev
          */
         unsigned                max_fib_size;
         unsigned                sg_tablesize;
+        unsigned                max_num_aif;
 
         /*
          *      Map for 128 fib objects (64k)
@@ -980,10 +1040,21 @@ struct aac_dev
         struct adapter_ops      a_ops;
         unsigned long           fsrev;          /* Main driver's revision number */
 
-        unsigned                base_size;      /* Size of mapped in region */
+        unsigned long           dbg_base;       /* address of UART
+                                                 * debug buffer */
+
+        unsigned                base_size, dbg_size;    /* Size of
+                                                         *  mapped in region */
+
         struct aac_init         *init;          /* Holds initialization info to communicate with adapter */
         dma_addr_t              init_pa;        /* Holds physical address of the init struct */
 
+        u32                     *host_rrq;      /* response queue
+                                                 * if AAC_COMM_MESSAGE_TYPE1 */
+
+        dma_addr_t              host_rrq_pa;    /* phys. address */
+        u32                     host_rrq_idx;   /* index into rrq buffer */
+
         struct pci_dev          *pdev;          /* Our PCI interface */
         void *                  printfbuf;      /* pointer to buffer used for printf's from the adapter */
         void *                  comm_addr;      /* Base address of Comm area */
@@ -1003,14 +1074,20 @@ struct aac_dev
          */
 #ifndef AAC_MIN_FOOTPRINT_SIZE
 #       define AAC_MIN_FOOTPRINT_SIZE 8192
+#       define AAC_MIN_SRC_BAR0_SIZE 0x400000
+#       define AAC_MIN_SRC_BAR1_SIZE 0x800
 #endif
         union
         {
                 struct sa_registers __iomem *sa;
                 struct rx_registers __iomem *rx;
                 struct rkt_registers __iomem *rkt;
+                struct {
+                        struct src_registers __iomem *bar0;
+                        char __iomem *bar1;
+                } src;
         } regs;
-        volatile void __iomem *base;
+        volatile void __iomem *base, *dbg_base_mapped;
         volatile struct rx_inbound __iomem *IndexRegs;
         u32                     OIMR; /* Mask Register Cache */
         /*
@@ -1031,9 +1108,8 @@ struct aac_dev
         u8                      comm_interface;
 #       define AAC_COMM_PRODUCER 0
 #       define AAC_COMM_MESSAGE  1
-        /* macro side-effects BEWARE */
-#       define                  raw_io_interface \
-          init->InitStructRevision==cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4)
+#       define AAC_COMM_MESSAGE_TYPE1   3
+        u8                      raw_io_interface;
         u8                      raw_io_64;
         u8                      printf_enabled;
         u8                      in_reset;
@@ -1789,6 +1865,10 @@ extern struct aac_common aac_config;
 #define DoorBellAdapterNormCmdNotFull   (1<<3)  /* Adapter -> Host */
 #define DoorBellAdapterNormRespNotFull  (1<<4)  /* Adapter -> Host */
 #define DoorBellPrintfReady             (1<<5)  /* Adapter -> Host */
+#define DoorBellAifPending              (1<<6)  /* Adapter -> Host */
+
+/* PMC specific outbound doorbell bits */
+#define PmDoorBellResponseSent          (1<<1)  /* Adapter -> Host */
 
 /*
  *      For FIB communication, we need all of the following things
@@ -1831,6 +1911,9 @@ extern struct aac_common aac_config;
 #define         AifReqAPIJobUpdate      109     /* Update a job report from the API */
 #define         AifReqAPIJobFinish      110     /* Finish a job from the API */
 
+/* PMC NEW COMM: Request the event data */
+#define         AifReqEvent             200
+
 /*
  *      Adapter Initiated FIB command structures. Start with the adapter
  *      initiated FIBs that really come from the adapter, and get responded
@@ -1886,10 +1969,13 @@ int aac_rx_init(struct aac_dev *dev);
 int aac_rkt_init(struct aac_dev *dev);
 int aac_nark_init(struct aac_dev *dev);
 int aac_sa_init(struct aac_dev *dev);
+int aac_src_init(struct aac_dev *dev);
 int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * hw_fib, int wait, struct fib * fibptr, unsigned long *nonotify);
 unsigned int aac_response_normal(struct aac_queue * q);
 unsigned int aac_command_normal(struct aac_queue * q);
-unsigned int aac_intr_normal(struct aac_dev * dev, u32 Index);
+unsigned int aac_intr_normal(struct aac_dev *dev, u32 Index,
+                        int isAif, int isFastResponse,
+                        struct hw_fib *aif_fib);
 int aac_reset_adapter(struct aac_dev * dev, int forced);
 int aac_check_health(struct aac_dev * dev);
 int aac_command_thread(void *data);