Skip to content

Commit

Permalink
scsi: aacraid: Include HBA direct interface
Browse files Browse the repository at this point in the history 
Added support to send direct pasthru srb commands from management utilty
to the  controller.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
  • Loading branch information
Raghava Aditya Renukunta authored and Martin K. Petersen committed Feb 3, 2017
1 parent 6223a39 commit 423400e
Show file tree
Hide file tree
Showing 6 changed files with 669 additions and 189 deletions.
175 changes: 162 additions & 13 deletions drivers/scsi/aacraid/aacraid.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -86,6 +86,7 @@ enum {
#define AAC_MAX_BUSES 5
#define AAC_MAX_TARGETS 256
#define AAC_MAX_NATIVE_SIZE 2048
#define FW_ERROR_BUFFER_SIZE 512

/* Thor AIF events */
#define SA_AIF_HOTPLUG (1<<1)
Expand All @@ -95,6 +96,141 @@ enum {
#define SA_AIF_BPSTAT_CHANGE (1<<30)
#define SA_AIF_BPCFG_CHANGE (1<<31)

#define HBA_MAX_SG_EMBEDDED 28
#define HBA_MAX_SG_SEPARATE 90
#define HBA_SENSE_DATA_LEN_MAX 32
#define HBA_REQUEST_TAG_ERROR_FLAG 0x00000002
#define HBA_SGL_FLAGS_EXT 0x80000000UL

struct aac_hba_sgl {
u32 addr_lo; /* Lower 32-bits of SGL element address */
u32 addr_hi; /* Upper 32-bits of SGL element address */
u32 len; /* Length of SGL element in bytes */
u32 flags; /* SGL element flags */
};

enum {
HBA_IU_TYPE_SCSI_CMD_REQ = 0x40,
HBA_IU_TYPE_SCSI_TM_REQ = 0x41,
HBA_IU_TYPE_SATA_REQ = 0x42,
HBA_IU_TYPE_RESP = 0x60,
HBA_IU_TYPE_COALESCED_RESP = 0x61,
HBA_IU_TYPE_INT_COALESCING_CFG_REQ = 0x70
};

enum {
HBA_CMD_BYTE1_DATA_DIR_IN = 0x1,
HBA_CMD_BYTE1_DATA_DIR_OUT = 0x2,
HBA_CMD_BYTE1_DATA_TYPE_DDR = 0x4,
HBA_CMD_BYTE1_CRYPTO_ENABLE = 0x8
};

enum {
HBA_CMD_BYTE1_BITOFF_DATA_DIR_IN = 0x0,
HBA_CMD_BYTE1_BITOFF_DATA_DIR_OUT,
HBA_CMD_BYTE1_BITOFF_DATA_TYPE_DDR,
HBA_CMD_BYTE1_BITOFF_CRYPTO_ENABLE
};

enum {
HBA_RESP_DATAPRES_NO_DATA = 0x0,
HBA_RESP_DATAPRES_RESPONSE_DATA,
HBA_RESP_DATAPRES_SENSE_DATA
};

enum {
HBA_RESP_SVCRES_TASK_COMPLETE = 0x0,
HBA_RESP_SVCRES_FAILURE,
HBA_RESP_SVCRES_TMF_COMPLETE,
HBA_RESP_SVCRES_TMF_SUCCEEDED,
HBA_RESP_SVCRES_TMF_REJECTED,
HBA_RESP_SVCRES_TMF_LUN_INVALID
};

enum {
HBA_RESP_STAT_IO_ERROR = 0x1,
HBA_RESP_STAT_IO_ABORTED,
HBA_RESP_STAT_NO_PATH_TO_DEVICE,
HBA_RESP_STAT_INVALID_DEVICE,
HBA_RESP_STAT_HBAMODE_DISABLED = 0xE,
HBA_RESP_STAT_UNDERRUN = 0x51,
HBA_RESP_STAT_OVERRUN = 0x75
};

struct aac_hba_cmd_req {
u8 iu_type; /* HBA information unit type */
/*
* byte1:
* [1:0] DIR - 0=No data, 0x1 = IN, 0x2 = OUT
* [2] TYPE - 0=PCI, 1=DDR
* [3] CRYPTO_ENABLE - 0=Crypto disabled, 1=Crypto enabled
*/
u8 byte1;
u8 reply_qid; /* Host reply queue to post response to */
u8 reserved1;
__le32 it_nexus; /* Device handle for the request */
__le32 request_id; /* Sender context */
/* Lower 32-bits of tweak value for crypto enabled IOs */
__le32 tweak_value_lo;
u8 cdb[16]; /* SCSI CDB of the command */
u8 lun[8]; /* SCSI LUN of the command */

/* Total data length in bytes to be read/written (if any) */
__le32 data_length;

/* [2:0] Task Attribute, [6:3] Command Priority */
u8 attr_prio;

/* Number of SGL elements embedded in the HBA req */
u8 emb_data_desc_count;

__le16 dek_index; /* DEK index for crypto enabled IOs */

/* Lower 32-bits of reserved error data target location on the host */
__le32 error_ptr_lo;

/* Upper 32-bits of reserved error data target location on the host */
__le32 error_ptr_hi;

/* Length of reserved error data area on the host in bytes */
__le32 error_length;

/* Upper 32-bits of tweak value for crypto enabled IOs */
__le32 tweak_value_hi;

struct aac_hba_sgl sge[HBA_MAX_SG_SEPARATE+2]; /* SG list space */

/*
* structure must not exceed
* AAC_MAX_NATIVE_SIZE-FW_ERROR_BUFFER_SIZE
*/
};

struct aac_hba_resp {
u8 iu_type; /* HBA information unit type */
u8 reserved1[3];
__le32 request_identifier; /* sender context */
__le32 reserved2;
u8 service_response; /* SCSI service response */
u8 status; /* SCSI status */
u8 datapres; /* [1:0] - data present, [7:2] - reserved */
u8 sense_response_data_len; /* Sense/response data length */
__le32 residual_count; /* Residual data length in bytes */
/* Sense/response data */
u8 sense_response_buf[HBA_SENSE_DATA_LEN_MAX];
};

struct aac_native_hba {
union {
struct aac_hba_cmd_req cmd;
u8 cmd_bytes[AAC_MAX_NATIVE_SIZE-FW_ERROR_BUFFER_SIZE];
} cmd;
union {
struct aac_hba_resp err;
u8 resp_bytes[FW_ERROR_BUFFER_SIZE];
} resp;
};

#define CISS_REPORT_PHYSICAL_LUNS 0xc3
#define WRITE_HOST_WELLNESS 0xa5
#define CISS_IDENTIFY_PHYSICAL_DEVICE 0x15
Expand Down Expand Up @@ -468,10 +604,10 @@ enum aac_queue_types {

/* 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];
__le64 HostAddress; /* FIB host address w/o xport header */
__le32 Size; /* FIB size excluding xport header */
__le32 Handle; /* driver handle to reference the FIB */
__le64 Reserved[2];
};

#define ALIGN32 32
Expand Down Expand Up @@ -978,17 +1114,20 @@ struct src_mu_registers {
__le32 IQ_L; /* c0h | Inbound Queue (Low address) */
__le32 IQ_H; /* c4h | Inbound Queue (High address) */
__le32 ODR_MSI; /* c8h | MSI register for sync./AIF */
__le32 reserved5; /* cch | Reserved */
__le32 IQN_L; /* d0h | Inbound (native cmd) low */
__le32 IQN_H; /* d4h | Inbound (native cmd) high */
};

struct src_registers {
struct src_mu_registers MUnit; /* 00h - cbh */
union {
struct {
__le32 reserved1[130789]; /* cch - 7fc5fh */
__le32 reserved1[130786]; /* d8h - 7fc5fh */
struct src_inbound IndexRegs; /* 7fc60h */
} tupelo;
struct {
__le32 reserved1[973]; /* cch - fffh */
__le32 reserved1[970]; /* d8h - fffh */
struct src_inbound IndexRegs; /* 1000h */
} denali;
} u;
Expand Down Expand Up @@ -1102,8 +1241,10 @@ struct fib {
struct list_head fiblink;
void *data;
u32 vector_no;
struct hw_fib *hw_fib_va; /* Actual shared object */
dma_addr_t hw_fib_pa; /* physical address of hw_fib*/
struct hw_fib *hw_fib_va; /* also used for native */
dma_addr_t hw_fib_pa; /* physical address of hw_fib*/
dma_addr_t hw_sgl_pa; /* extra sgl for native */
dma_addr_t hw_error_pa; /* error buffer for native */
u32 hbacmd_size; /* cmd size for native */
};

Expand Down Expand Up @@ -1285,6 +1426,7 @@ struct aac_bus_info_response {
#define AAC_OPT_NEW_COMM cpu_to_le32(1<<17)
#define AAC_OPT_NEW_COMM_64 cpu_to_le32(1<<18)
#define AAC_OPT_EXTENDED cpu_to_le32(1<<23)
#define AAC_OPT_NATIVE_HBA cpu_to_le32(1<<25)
#define AAC_OPT_NEW_COMM_TYPE1 cpu_to_le32(1<<28)
#define AAC_OPT_NEW_COMM_TYPE2 cpu_to_le32(1<<29)
#define AAC_OPT_NEW_COMM_TYPE3 cpu_to_le32(1<<30)
Expand Down Expand Up @@ -1322,8 +1464,8 @@ struct aac_dev
/*
* Map for 128 fib objects (64k)
*/
dma_addr_t hw_fib_pa;
struct hw_fib *hw_fib_va;
dma_addr_t hw_fib_pa; /* also used for native cmd */
struct hw_fib *hw_fib_va; /* also used for native cmd */
struct hw_fib *aif_base_va;
/*
* Fib Headers
Expand Down Expand Up @@ -1498,6 +1640,8 @@ struct aac_dev
#define FIB_CONTEXT_FLAG (0x00000002)
#define FIB_CONTEXT_FLAG_WAIT (0x00000004)
#define FIB_CONTEXT_FLAG_FASTRESP (0x00000008)
#define FIB_CONTEXT_FLAG_NATIVE_HBA (0x00000010)
#define FIB_CONTEXT_FLAG_NATIVE_HBA_TMF (0x00000020)

/*
* Define the command values
Expand Down Expand Up @@ -2157,6 +2301,8 @@ struct aac_common
#ifdef DBG
u32 FibsSent;
u32 FibRecved;
u32 NativeSent;
u32 NativeRecved;
u32 NoResponseSent;
u32 NoResponseRecved;
u32 AsyncSent;
Expand All @@ -2168,7 +2314,6 @@ struct aac_common

extern struct aac_common aac_config;


/*
* The following macro is used when sending and receiving FIBs. It is
* only used for debugging.
Expand Down Expand Up @@ -2295,9 +2440,10 @@ extern struct aac_common aac_config;

/* PMC NEW COMM: Request the event data */
#define AifReqEvent 200
#define AifRawDeviceRemove 203 /* RAW device deleted */
#define AifNativeDeviceAdd 204 /* native HBA device added */
#define AifNativeDeviceRemove 205 /* native HBA device removed */

/* RAW device deleted */
#define AifRawDeviceRemove 203

/*
* Adapter Initiated FIB command structures. Start with the adapter
Expand Down Expand Up @@ -2342,9 +2488,12 @@ void aac_fib_free(struct fib * context);
void aac_fib_init(struct fib * context);
void aac_printf(struct aac_dev *dev, u32 val);
int aac_fib_send(u16 command, struct fib * context, unsigned long size, int priority, int wait, int reply, fib_callback callback, void *ctxt);
int aac_hba_send(u8 command, struct fib *context,
fib_callback callback, void *ctxt);
int aac_consumer_get(struct aac_dev * dev, struct aac_queue * q, struct aac_entry **entry);
void aac_consumer_free(struct aac_dev * dev, struct aac_queue * q, u32 qnum);
int aac_fib_complete(struct fib * context);
void aac_hba_callback(void *context, struct fib *fibptr);
#define fib_data(fibctx) ((void *)(fibctx)->hw_fib_va->data)
struct aac_dev *aac_init_adapter(struct aac_dev *dev);
void aac_src_access_devreg(struct aac_dev *dev, int mode);
Expand Down
Loading

0 comments on commit 423400e

Please sign in to comment.