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Commit d2c3506b authored by David Kershner's avatar David Kershner Committed by Greg Kroah-Hartman
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staging: unisys: Add s-Par visorhba 



This driver create a host bus adapter device when s-Par sends a
device create message to create a storage adapter on the visorbus.
When the message is received by visorbus, the visorhba_probe function
is called and the hba device is created and managed by the visorhba
driver.

Signed-off-by: default avatarErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: default avatarBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: default avatarDavid Kershner <david.kershner@unisys.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a6c8746d

drivers/staging/unisys/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -14,5 +14,6 @@ if UNISYSSPAR 
source "drivers/staging/unisys/visorbus/Kconfig"

source "drivers/staging/unisys/visornic/Kconfig"

source "drivers/staging/unisys/visorhid/Kconfig"

source "drivers/staging/unisys/visorhba/Kconfig"



endif # UNISYSSPAR

drivers/staging/unisys/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -4,3 +4,4 @@ 
obj-$(CONFIG_UNISYS_VISORBUS)		+= visorbus/

obj-$(CONFIG_UNISYS_VISORNIC)		+= visornic/

obj-$(CONFIG_UNISYS_VISORHID)          += visorhid/

obj-$(CONFIG_UNISYS_VISORHBA)		+= visorhba/

drivers/staging/unisys/include/iochannel.h

+13 −13
Original line number Diff line number Diff line
@@ -147,6 +147,10 @@ struct phys_info { 
	u16 pi_len;

} __packed;



#define MIN_NUMSIGNALS 64



/* structs with pragma pack  */



struct guest_phys_info {

	u64 address;

	u64 length;
@@ -183,7 +187,7 @@ struct vhba_config_max { /* 20 bytes */ 
} __packed;



struct uiscmdrsp_scsi {

	void *scsicmd;		/* the handle to the cmd that was received -

	u64 handle;		/* the handle to the cmd that was received -

				 * send it back as is in the rsp packet.  */

	u8 cmnd[MAX_CMND_SIZE];	/* the cdb for the command */

	u32 bufflen;		/* length of data to be transferred out or in */
@@ -437,24 +441,22 @@ struct uiscmdrsp_scsitaskmgmt { 
	struct uisscsi_dest vdest;



	    /* the vdisk for which this task mgmt is generated */

	void *scsicmd;

	u64 handle;



	    /* This is some handle that the guest has saved off for its own use.

	    /* This is a handle that the guest has saved off for its own use.

	     * Its value is preserved by iopart & returned as is in the task

	     * mgmt rsp.

	     */

	void *notify;

	u64 notify_handle;



	   /* For linux guests, this is a pointer to wait_queue_head that a

	    * thread is waiting on to see if the taskmgmt command has completed.

	    * For windows guests, this is a pointer to a location that a waiting

	    * thread is testing to see if the taskmgmt command has completed.

	    * When the rsp is received by guest, the thread receiving the

	    * response uses this to notify the thread waiting for taskmgmt

	    * command completion.  Its value is preserved by iopart & returned

	    * as is in the task mgmt rsp.

	    */

	void *notifyresult;

	u64 notifyresult_handle;



	    /* this is a handle to location in guest where the result of the

	     * taskmgmt command (result field) is to saved off when the response
@@ -486,24 +488,22 @@ struct uiscmdrsp_vdiskmgmt { 
	struct uisscsi_dest vdest;



	    /* the vdisk for which this task mgmt is generated */

	void *scsicmd;

	u64 handle;



	    /* This is some handle that the guest has saved off for its own use.

	    /* This is a handle that the guest has saved off for its own use.

	     * Its value is preserved by iopart & returned as is in the task

	     * mgmt rsp.

	     */

	void *notify;

	u64 notify_handle;



	    /* For linux guests, this is a pointer to wait_queue_head that a

	     * thread is waiting on to see if the tskmgmt command has completed.

	     * For win32 guests, this is a pointer to a location that a waiting

	     * thread is testing to see if the taskmgmt command has completed.

	     * When the rsp is received by guest, the thread receiving the

	     * response uses this to notify the thread waiting for taskmgmt

	     * command completion.  Its value is preserved by iopart & returned

	     * as is in the task mgmt rsp.

	     */

	void *notifyresult;

	u64 notifyresult_handle;



	    /* this is a handle to location in guest where the result of the

	     * taskmgmt command (result field) is to saved off when the response

drivers/staging/unisys/visorhba/Kconfig

0 → 100644
+14 −0
Original line number Diff line number Diff line 
#

# Unisys visorhba configuration

#



config UNISYS_VISORHBA

	tristate "Unisys visorhba driver"

	depends on UNISYSSPAR && UNISYS_VISORBUS && SCSI

	---help---

	The Unisys visorhba driver provides support for s-Par HBA

	devices exposed on the s-Par visorbus. When a message is sent

	to visorbus to create a HBA device, the probe function of

	visorhba is called to create the scsi device.

	If you say Y here, you will enable the Unisys visorhba driver.

drivers/staging/unisys/visorhba/Makefile

0 → 100644
+10 −0
Original line number Diff line number Diff line 
#

# Makefile for Unisys channel

#



obj-$(CONFIG_UNISYS_VISORHBA)	+= visorhba.o



visorhba-y := visorhba_main.o



ccflags-y += -Idrivers/staging/unisys/include