Add a CAM interface to the aac driver. This is useful in case you should

ever connect a SCSI Cdrom/Tape/Jukebox/Scanner/Printer/kitty-litter-scooper
to your high-end RAID controller.  The interface to the arrays is still
via the block interface; this merely provides a way to circumvent the
RAID functionality and access the SCSI buses directly.  Note that for
somewhat obvious reasons, hard drives are not exposed to the da driver
through this interface, though you can still talk to them via the pass
driver.  Be the first on your block to low-level format unsuspecting
drives that are part of an array!

To enable this, add the 'aacp' device to your kernel config.

MFC after:	3 days

1 files changed, 186 insertions, 0 deletions

diff --git a/sys/dev/aac/aacreg.h b/sys/dev/aac/aacreg.h
index 2a954df..c360ba2 100644
--- a/sys/dev/aac/aacreg.h
+++ b/sys/dev/aac/aacreg.h
@@ -1002,6 +1002,105 @@ struct aac_closecommand {
 } __attribute__ ((packed));
 
 /*
+ * Container Config Command
+ */
+#define CT_GET_SCSI_METHOD	64
+struct aac_ctcfg {
+	AAC_VMCommand		Command;
+	u_int32_t		cmd;
+	u_int32_t		param;
+} __attribute__ ((packed));
+
+struct aac_ctcfg_resp {
+	AAC_FSAStatus		Status;
+	u_int32_t		resp;
+	u_int32_t		param;
+} __attribute__ ((packed));
+
+/*
+ * 'Ioctl' commads
+ */
+#define AAC_SCSI_MAX_PORTS	10
+#define AAC_BUS_NO_EXIST	0
+#define AAC_BUS_VALID		1
+#define AAC_BUS_FAULTED		2
+#define AAC_BUS_DISABLED	3
+#define GetBusInfo		0x9
+
+struct aac_getbusinf {
+	u_int32_t		ProbeComplete;
+	u_int32_t		BusCount;
+	u_int32_t		TargetsPerBus;
+	u_int8_t		InitiatorBusId[AAC_SCSI_MAX_PORTS];
+	u_int8_t		BusValid[AAC_SCSI_MAX_PORTS];
+} __attribute__ ((packed));
+
+struct aac_vmioctl {
+	AAC_VMCommand		Command;
+	AAC_FType		ObjType;
+	u_int32_t		MethId;
+	u_int32_t		ObjId;
+	u_int32_t		IoctlCmd;
+	u_int32_t		IoctlBuf[1];	/* Placeholder? */
+} __attribute__ ((packed));
+
+struct aac_vmi_businf_resp {
+	AAC_FSAStatus		Status;
+	AAC_FType		ObjType;
+	u_int32_t		MethId;
+	u_int32_t		ObjId;
+	u_int32_t		IoctlCmd;
+	struct aac_getbusinf	BusInf;
+} __attribute__ ((packed));
+
+#define AAC_BTL_TO_HANDLE(b, t, l) \
+    (((b & 0x3f) << 7) | ((l & 0x7) << 4) | (t & 0xf))
+#define GetDeviceProbeInfo 0x5
+
+struct aac_vmi_devinfo_resp {
+	AAC_FSAStatus		Status;
+	AAC_FType		ObjType;
+	u_int32_t		MethId;
+	u_int32_t		ObjId;
+	u_int32_t		IoctlCmd;
+	u_int8_t		VendorId[8];
+	u_int8_t		ProductId[16];
+	u_int8_t		ProductRev[4];
+	u_int32_t		Inquiry7;
+	u_int32_t		align1;
+	u_int32_t		Inquiry0;
+	u_int32_t		align2;
+	u_int32_t		Inquiry1;
+	u_int32_t		align3;
+	u_int32_t		reserved[2];
+	u_int8_t		VendorSpecific[20];
+	u_int32_t		Smart:1;
+	u_int32_t		AAC_Managed:1;
+	u_int32_t		align4;
+	u_int32_t		reserved2:6;
+	u_int32_t		Bus;
+	u_int32_t		Target;
+	u_int32_t		Lun;
+	u_int32_t		ultraEnable:1,
+				disconnectEnable:1,
+				fast20EnabledW:1,
+				scamDevice:1,
+				scamTolerant:1,
+				setForSync:1,
+				setForWide:1,
+				syncDevice:1,
+				wideDevice:1,
+				reserved1:7,
+				ScsiRate:8,
+				ScsiOffset:8;
+}; /* Do not pack */
+
+#define ResetBus 0x16
+struct aac_resetbus {
+	u_int32_t		BusNumber;
+};
+
+/*
  * Write 'stability' options.
  */
 typedef enum {
@@ -1062,6 +1161,93 @@ struct aac_close_command {
 };
 
 /*
+ * SCSI Passthrough structures
+ */
+struct aac_srb32 {
+	u_int32_t		function;
+	u_int32_t		bus;
+	u_int32_t		target;
+	u_int32_t		lun;
+	u_int32_t		timeout;
+	u_int32_t		flags;
+	u_int32_t		data_len;
+	u_int32_t		retry_limit;
+	u_int32_t		cdb_len;
+	u_int8_t		cdb[16];
+	struct aac_sg_table	sg_map32;
+};
+
+enum {
+	AAC_SRB_FUNC_EXECUTE_SCSI	= 0x00,
+	AAC_SRB_FUNC_CLAIM_DEVICE,
+	AAC_SRB_FUNC_IO_CONTROL,
+	AAC_SRB_FUNC_RECEIVE_EVENT,
+	AAC_SRB_FUNC_RELEASE_QUEUE,
+	AAC_SRB_FUNC_ATTACH_DEVICE,
+	AAC_SRB_FUNC_RELEASE_DEVICE,
+	AAC_SRB_FUNC_SHUTDOWN,
+	AAC_SRB_FUNC_FLUSH,
+	AAC_SRB_FUNC_ABORT_COMMAND	= 0x10,
+	AAC_SRB_FUNC_RELEASE_RECOVERY,
+	AAC_SRB_FUNC_RESET_BUS,
+	AAC_SRB_FUNC_RESET_DEVICE,
+	AAC_SRB_FUNC_TERMINATE_IO,
+	AAC_SRB_FUNC_FLUSH_QUEUE,
+	AAC_SRB_FUNC_REMOVE_DEVICE,
+	AAC_SRB_FUNC_DOMAIN_VALIDATION
+};
+
+#define AAC_SRB_FLAGS_NO_DATA_XFER		0x0000
+#define	AAC_SRB_FLAGS_DISABLE_DISCONNECT	0x0004
+#define	AAC_SRB_FLAGS_DISABLE_SYNC_TRANSFER	0x0008
+#define AAC_SRB_FLAGS_BYPASS_FROZEN_QUEUE	0x0010
+#define	AAC_SRB_FLAGS_DISABLE_AUTOSENSE		0x0020
+#define	AAC_SRB_FLAGS_DATA_IN			0x0040
+#define AAC_SRB_FLAGS_DATA_OUT			0x0080
+#define	AAC_SRB_FLAGS_UNSPECIFIED_DIRECTION \
+			(AAC_SRB_FLAGS_DATA_IN | AAC_SRB_FLAGS_DATA_OUT)
+
+#define AAC_HOST_SENSE_DATA_MAX			30
+
+struct aac_srb_response {
+	u_int32_t	fib_status;
+	u_int32_t	srb_status;
+	u_int32_t	scsi_status;
+	u_int32_t	data_len;
+	u_int32_t	sense_len;
+	u_int8_t	sense[AAC_HOST_SENSE_DATA_MAX];
+};
+
+enum {
+	AAC_SRB_STS_PENDING			= 0x00,
+	AAC_SRB_STS_SUCCESS,
+	AAC_SRB_STS_ABORTED,
+	AAC_SRB_STS_ABORT_FAILED,
+	AAC_SRB_STS_ERROR,
+	AAC_SRB_STS_BUSY,
+	AAC_SRB_STS_INVALID_REQUEST,
+	AAC_SRB_STS_INVALID_PATH_ID,
+	AAC_SRB_STS_NO_DEVICE,
+	AAC_SRB_STS_TIMEOUT,
+	AAC_SRB_STS_SELECTION_TIMEOUT,
+	AAC_SRB_STS_COMMAND_TIMEOUT,
+	AAC_SRB_STS_MESSAGE_REJECTED		= 0x0D,
+	AAC_SRB_STS_BUS_RESET,
+	AAC_SRB_STS_PARITY_ERROR,
+	AAC_SRB_STS_REQUEST_SENSE_FAILED,
+	AAC_SRB_STS_NO_HBA,
+	AAC_SRB_STS_DATA_OVERRUN,
+	AAC_SRB_STS_UNEXPECTED_BUS_FREE,
+	AAC_SRB_STS_PHASE_SEQUENCE_FAILURE,
+	AAC_SRB_STS_BAD_SRB_BLOCK_LENGTH,
+	AAC_SRB_STS_REQUEST_FLUSHED,
+	AAC_SRB_STS_INVALID_LUN			= 0x20,
+	AAC_SRB_STS_INVALID_TARGET_ID,
+	AAC_SRB_STS_BAD_FUNCTION,
+	AAC_SRB_STS_ERROR_RECOVERY
+};
+
+/*
  * Register set for adapters based on the Falcon bridge and PPC core
  */