staging: unisys: include: iochannel.h: fixed comment formatting issues (6cf6e5e6) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/staging/unisys/include/iochannel.h

+280 −212

Original line number	Diff line number	Diff line
		@@ -71,8 +71,10 @@
		#define MAXNUM(a, b) (((a) > (b)) ? (a) : (b))

		/* Define the two queues per data channel between iopart and ioguestparts. */

		/* Used by ioguestpart to 'insert' signals to iopart. */
		#define IOCHAN_TO_IOPART 0

		/* Used by ioguestpart to 'remove' signals from iopart, same previous queue. */
		#define IOCHAN_FROM_IOPART 1

		@@ -83,46 +85,45 @@

		#define MAX_PHYS_INFO 64

		/* Various types of network packets that can be sent in cmdrsp. */
		enum net_types {
		NET_RCV_POST = 0, /*
		* Submit buffer to hold receiving
		* incoming packet
		*/
		/* visornic -> uisnic */
		NET_RCV, /* incoming packet received */
		/* uisnic -> visornic */
		NET_XMIT, /* for outgoing net packets */
		/* visornic -> uisnic */
		NET_XMIT_DONE, /* outgoing packet xmitted */
		/* uisnic -> visornic */
		NET_RCV_ENBDIS, /* enable/disable packet reception */
		/* visornic -> uisnic */
		NET_RCV_ENBDIS_ACK, /* acknowledge enable/disable packet */
		/* reception */
		/* uisnic -> visornic */
		NET_RCV_PROMISC, /* enable/disable promiscuous mode */
		/* visornic -> uisnic */
		NET_CONNECT_STATUS, /*
		* indicate the loss or restoration of a network
		* connection
		*/
		/* uisnic -> visornic */
		NET_MACADDR, /*
		* Indicates the client has requested to update
		* it's MAC address
		/*
		* enum net_types - Various types of network packets that can be sent in cmdrsp.
		* @NET_RCV_POST: Submit buffer to hold receiving incoming packet.
		* @NET_RCV: visornic -> uisnic. Incoming packet received.
		* @NET_XMIT: uisnic -> visornic. For outgoing packet.
		* @NET_XMIT_DONE: visornic -> uisnic. Outgoing packet xmitted.
		* @NET_RCV_ENBDIS: uisnic -> visornic. Enable/Disable packet reception.
		* @NET_RCV_ENBDIS_ACK: visornic -> uisnic. Acknowledge enable/disable packet.
		* @NET_RCV_PROMISC: uisnic -> visornic. Enable/Disable promiscuous mode.
		* @NET_CONNECT_STATUS: visornic -> uisnic. Indicate the loss or restoration of
		* a network connection.
		* @NET_MACADDR: uisnic -> visornic. Indicates the client has requested
		* to update it's MAC address.
		* @NET_MACADDR_ACK: MAC address acknowledge.
		*/
		NET_MACADDR_ACK, /* MAC address acknowledge */

		enum net_types {
		NET_RCV_POST = 0,
		NET_RCV,
		NET_XMIT,
		NET_XMIT_DONE,
		NET_RCV_ENBDIS,
		NET_RCV_ENBDIS_ACK,
		/* Reception */
		NET_RCV_PROMISC,
		NET_CONNECT_STATUS,
		NET_MACADDR,
		NET_MACADDR_ACK,
		};

		#define ETH_MIN_DATA_SIZE 46 /* minimum eth data size */
		/* Minimum eth data size */
		#define ETH_MIN_DATA_SIZE 46
		#define ETH_MIN_PACKET_SIZE (ETH_HLEN + ETH_MIN_DATA_SIZE)

		#define VISOR_ETH_MAX_MTU 16384 /* maximum data size */
		/* Maximum data size */
		#define VISOR_ETH_MAX_MTU 16384

		#ifndef MAX_MACADDR_LEN
		#define MAX_MACADDR_LEN 6 /* number of bytes in MAC address */
		/* Number of bytes in MAC address */
		#define MAX_MACADDR_LEN 6
		#endif

		/* Various types of scsi task mgmt commands. */
		@@ -156,10 +157,16 @@ struct guest_phys_info {

		#define GPI_ENTRIES_PER_PAGE (PAGE_SIZE / sizeof(struct guest_phys_info))

		/*
		* struct uisscsi_dest
		* @channel: Bus number.
		* @id: Target number.
		* @lun: Logical unit number.
		*/
		struct uisscsi_dest {
		u32 channel; /* channel == bus number */
		u32 id; /* id == target number */
		u32 lun; /* lun == logical unit number */
		u32 channel;
		u32 id;
		u32 lun;
		} __packed;

		struct vhba_wwnn {
		@@ -168,53 +175,71 @@ struct vhba_wwnn {
		} __packed;

		/*
		* struct vhba_config_max
		* @max_channel: Maximum channel for devices attached to this bus.
		* @max_id: Maximum SCSI ID for devices attached to bus.
		* @max_lun: Maximum SCSI LUN for devices attached to bus.
		* @cmd_per_lun: Maximum number of outstanding commands per LUN.
		* @max_io_size: Maximum io size for devices attached to this bus. Max io size
		* is often determined by the resource of the hba.
		* e.g Max scatter gather list length * page size / sector size.
		*
		* WARNING: Values stired in this structure must contain maximum counts (not
		* maximum values).
		*
		* 20 bytes
		*/
		struct vhba_config_max {/* 20 bytes */
		u32 max_channel;/* maximum channel for devices attached to this bus */
		u32 max_id; /* maximum SCSI ID for devices attached to bus */
		u32 max_lun; /* maximum SCSI LUN for devices attached to bus */
		u32 cmd_per_lun;/* maximum number of outstanding commands per LUN */
		u32 max_io_size;/* maximum io size for devices attached to this bus */
		/* max io size is often determined by the resource of the hba. e.g */
		/* max scatter gather list length * page size / sector size */
		struct vhba_config_max {
		u32 max_channel;
		u32 max_id;
		u32 max_lun;
		u32 cmd_per_lun;
		u32 max_io_size;
		} __packed;

		struct uiscmdrsp_scsi {
		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 */
		u16 guest_phys_entries; /* Number of entries in scatter-gather list */
		struct guest_phys_info gpi_list[MAX_PHYS_INFO]; /* physical address
		* information for each
		* fragment
		*/
		enum dma_data_direction data_dir; /* direction of the data, if any */
		struct uisscsi_dest vdest; /* identifies the virtual hba, id, */
		/* channel, lun to which cmd was sent */

		/* Needed to queue the rsp back to cmd originator. */
		int linuxstat; /* original Linux status used by Linux vdisk */
		u8 scsistat; /* the scsi status */
		u8 addlstat; /* non-scsi status */
		#define ADDL_SEL_TIMEOUT 4

		/* The following fields are need to determine the result of command. */
		u8 sensebuf[MAX_SENSE_SIZE]; /* sense info in case cmd failed; */
		/* sensebuf holds the sense_data struct; */
		/* See sense_data struct for more details. */
		void vdisk; / Pointer to the vdisk to clean up when IO completes. */
		int no_disk_result;
		/*
		* Used to return no disk inquiry result
		* when no_disk_result is set to 1,
		* struct uiscmdrsp_scsi
		*
		* @handle: The handle to the cmd that was received. Send it back as
		* is in the rsp packet.
		* @cmnd: The cdb for the command.
		* @bufflen: Length of data to be transferred out or in.
		* @guest_phys_entries: Number of entries in scatter-gather list.
		* @struct gpi_list: Physical address information for each fragment.
		* @enum data_dir: Direction of the data, if any.
		* @struct vdest: Identifies the virtual hba, id, channel, lun to which
		* cmd was sent.
		* @linuxstat: Original Linux status used by Linux vdisk.
		* @scsistat: The scsi status.
		* @addlstat: Non-scsi status.
		* @sensebuf: Sense info in case cmd failed. sensebuf holds the
		* sense_data struct. See sense_data struct for more
		* details.
		* @*vdisk: Pointer to the vdisk to clean up when IO completes.
		* @no_disk_result: Used to return no disk inquiry result when
		* no_disk_result is set to 1
		* scsi.scsistat is SAM_STAT_GOOD
		* scsi.addlstat is 0
		* scsi.linuxstat is SAM_STAT_GOOD
		* That is, there is NO error.
		*/
		struct uiscmdrsp_scsi {
		u64 handle;
		u8 cmnd[MAX_CMND_SIZE];
		u32 bufflen;
		u16 guest_phys_entries;
		struct guest_phys_info gpi_list[MAX_PHYS_INFO];
		enum dma_data_direction data_dir;
		struct uisscsi_dest vdest;
		/* Needed to queue the rsp back to cmd originator. */
		int linuxstat;
		u8 scsistat;
		u8 addlstat;
		#define ADDL_SEL_TIMEOUT 4
		/* The following fields are need to determine the result of command. */
		u8 sensebuf[MAX_SENSE_SIZE];
		void *vdisk;
		int no_disk_result;
		} __packed;

		/*
		@@ -234,22 +259,35 @@ struct uiscmdrsp_scsi {
		* connected to this logical unit.
		*/

		#define DEV_NOT_CAPABLE 0x7f /*
		* peripheral qualifier of 0x3
		* peripheral type of 0x1f
		* specifies no device but target present
		/*
		* Peripheral qualifier of 0x3
		* Peripheral type of 0x1f
		* Specifies no device but target present
		*/

		#define DEV_DISK_CAPABLE_NOT_PRESENT 0x20 /* peripheral qualifier of 0x1
		* peripheral type of 0 - disk
		* Specifies device capable, but
		* not present
		#define DEV_NOT_CAPABLE 0x7f
		/*
		* Peripheral qualifier of 0x1
		* Peripheral type of 0 - disk
		* Specifies device capable, but not present
		*/
		#define DEV_DISK_CAPABLE_NOT_PRESENT 0x20
		/* HiSup = 1; shows support for report luns must be returned for lun 0. */
		#define DEV_HISUPPORT 0x10

		#define DEV_HISUPPORT 0x10 /*
		* HiSup = 1; shows support for report luns
		* must be returned for lun 0.
		/*
		* Peripheral qualifier of 0x3
		* Peripheral type of 0x1f
		* Specifies no device but target present
		*/
		#define DEV_NOT_CAPABLE 0x7f
		/*
		* Peripheral qualifier of 0x1
		* Peripheral type of 0 - disk
		* Specifies device capable, but not present
		*/
		#define DEV_DISK_CAPABLE_NOT_PRESENT 0x20
		/* HiSup = 1; shows support for report luns must be returned for lun 0. */
		#define DEV_HISUPPORT 0x10

		/*
		* NOTE: Linux code assumes inquiry contains 36 bytes. Without checking length
		@@ -258,11 +296,12 @@ struct uiscmdrsp_scsi {
		* inquiry result.
		*/
		#define NO_DISK_INQUIRY_RESULT_LEN 36

		#define MIN_INQUIRY_RESULT_LEN 5 /* 5 bytes minimum for inquiry result */
		/* 5 bytes minimum for inquiry result */
		#define MIN_INQUIRY_RESULT_LEN 5

		/* SCSI device version for no disk inquiry result */
		#define SCSI_SPC2_VER 4 /* indicates SCSI SPC2 (SPC3 is 5) */
		/* indicates SCSI SPC2 (SPC3 is 5) */
		#define SCSI_SPC2_VER 4

		/* Struct and Defines to support sense information. */

		@@ -297,35 +336,48 @@ struct sense_data {
		u8 sense_key_specific[3];
		} __packed;

		struct net_pkt_xmt {
		int len; /* full length of data in the packet */
		int num_frags; /* number of fragments in frags containing data */
		struct phys_info frags[MAX_PHYS_INFO]; /* physical page information */
		char ethhdr[ETH_HLEN]; /* the ethernet header */
		struct {
		/* These are needed for csum at uisnic end */
		u8 valid; /* 1 = struct is valid - else ignore */
		u8 hrawoffv; /* 1 = hwrafoff is valid */
		u8 nhrawoffv; /* 1 = nhwrafoff is valid */
		__be16 protocol; /* specifies packet protocol */
		__wsum csum; /* value used to set skb->csum at IOPart */
		u32 hrawoff; /* value used to set skb->h.raw at IOPart */
		/* hrawoff points to the start of the TRANSPORT LAYER HEADER */
		u32 nhrawoff; /* value used to set skb->nh.raw at IOPart */
		/* nhrawoff points to the start of the NETWORK LAYER HEADER */
		} lincsum;

		/*
		* struct net_pkt_xmt
		* @len: Full length of data in the packet.
		* @num_frags: Number of fragments in frags containing data.
		* @struct phys_info frags: Physical page information.
		* @ethhdr: The ethernet header.
		* @struct lincsum: These are needed for csum at uisnic end.
		* @valid: 1 = struct is valid - else ignore.
		* @hrawoffv: 1 = hwrafoff is valid.
		* @nhrawoffv: 1 = nhwrafoff is valid.
		* @protocol: Specifies packet protocol.
		* @csum: Value used to set skb->csum at IOPart.
		* @hrawoff: Value used to set skb->h.raw at IOPart. hrawoff points to
		* the start of the TRANSPORT LAYER HEADER.
		* @nhrawoff: Value used to set skb->nh.raw at IOPart. nhrawoff points to
		* the start of the NETWORK LAYER HEADER.
		*
		* NOTE:
		* The full packet is described in frags but the ethernet header is
		* separately kept in ethhdr so that uisnic doesn't have "MAP" the
		* guest memory to get to the header. uisnic needs ethhdr to
		* determine how to route the packet.
		*/
		struct net_pkt_xmt {
		int len;
		int num_frags;
		struct phys_info frags[MAX_PHYS_INFO];
		char ethhdr[ETH_HLEN];
		struct {
		u8 valid;
		u8 hrawoffv;
		u8 nhrawoffv;
		__be16 protocol;
		__wsum csum;
		u32 hrawoff;
		u32 nhrawoff;
		} lincsum;
		} __packed;

		struct net_pkt_xmtdone {
		u32 xmt_done_result; /* result of NET_XMIT */
		/* Result of NET_XMIT */
		u32 xmt_done_result;
		} __packed;

		/*
		@@ -341,14 +393,12 @@ struct net_pkt_xmtdone {
		((VISOR_ETH_MAX_MTU + ETH_HLEN + RCVPOST_BUF_SIZE - 1) \
		/ RCVPOST_BUF_SIZE)

		/*
		* rcv buf size must be large enough to include ethernet data len + ethernet
		/* rcv buf size must be large enough to include ethernet data len + ethernet
		* header len - we are choosing 2K because it is guaranteed to be describable.
		*/
		struct net_pkt_rcvpost {
		/* Physical page information for the single fragment 2K rcv buf */
		struct phys_info frag;

		/*
		* Ensures that receive posts are returned to the adapter which we sent
		* them from originally.
		@@ -358,142 +408,147 @@ struct net_pkt_rcvpost {
		} __packed;

		/*
		* struct net_pkt_rcv
		* @rcv_done_len: Length of the received data.
		* @numrcvbufs: Contains the incoming data. Guest side MUST chain these
		* together.
		* @*rcvbuf: List of chained rcvbufa. Each entry is a receive buffer
		* provided by NET_RCV_POST. NOTE: First rcvbuf in the
		* chain will also be provided in net.buf.
		* @unique_num:
		* @rcvs_dropped_delta:
		*
		* The number of rcvbuf that can be chained is based on max mtu and size of each
		* rcvbuf.
		*/
		struct net_pkt_rcv {
		u32 rcv_done_len; /* length of received data */

		/*
		* numrcvbufs: contain the incoming data; guest side MUST chain these
		* together.
		*/
		u32 rcv_done_len;
		u8 numrcvbufs;

		void rcvbuf[MAX_NET_RCV_CHAIN]; / list of chained rcvbufs */

		/* Each entry is a receive buffer provided by NET_RCV_POST. */
		/* NOTE: first rcvbuf in the chain will also be provided in net.buf. */
		void *rcvbuf[MAX_NET_RCV_CHAIN];
		u64 unique_num;
		u32 rcvs_dropped_delta;
		} __packed;

		struct net_pkt_enbdis {
		void *context;
		u16 enable; /* 1 = enable, 0 = disable */
		/* 1 = enable, 0 = disable */
		u16 enable;
		} __packed;

		struct net_pkt_macaddr {
		void *context;
		u8 macaddr[MAX_MACADDR_LEN]; /* 6 bytes */
		/* 6 bytes */
		u8 macaddr[MAX_MACADDR_LEN];
		} __packed;

		/* cmd rsp packet used for VNIC network traffic */
		/*
		* struct uiscmdrsp_net - cmd rsp packet used for VNIC network traffic.
		* @enum type:
		* @*buf:
		* @union:
		* @struct xmt: Used for NET_XMIT.
		* @struct xmtdone: Used for NET_XMIT_DONE.
		* @struct rcvpost: Used for NET_RCV_POST.
		* @struct rcv: Used for NET_RCV.
		* @struct enbdis: Used for NET_RCV_ENBDIS, NET_RCV_ENBDIS_ACK,
		* NET_RCV_PROMSIC, and NET_CONNECT_STATUS.
		* @struct macaddr:
		*/
		struct uiscmdrsp_net {
		enum net_types type;
		void *buf;
		union {
		struct net_pkt_xmt xmt; /* used for NET_XMIT */
		struct net_pkt_xmtdone xmtdone; /* used for NET_XMIT_DONE */
		struct net_pkt_rcvpost rcvpost; /* used for NET_RCV_POST */
		struct net_pkt_rcv rcv; /* used for NET_RCV */
		struct net_pkt_enbdis enbdis; /* used for NET_RCV_ENBDIS, */
		/* NET_RCV_ENBDIS_ACK, */
		/* NET_RCV_PROMSIC, */
		/* and NET_CONNECT_STATUS */
		struct net_pkt_xmt xmt;
		struct net_pkt_xmtdone xmtdone;
		struct net_pkt_rcvpost rcvpost;
		struct net_pkt_rcv rcv;
		struct net_pkt_enbdis enbdis;
		struct net_pkt_macaddr macaddr;
		};
		} __packed;

		/*
		* struct uiscmdrsp_scsitaskmgmt
		* @enum tasktype: The type of task.
		* @struct vdest: The vdisk for which this task mgmt is generated.
		* @handle: This is a handle that the guest has saved off for its
		* own use. The handle value is preserved by iopart and
		* returned as in task mgmt rsp.
		* @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. When the rsp is received by
		* guest, the thread receiving the response uses this to
		* notify the thread waiting for taskmgmt command
		* completion. It's value is preserved by iopart and
		* returned as in the task mgmt rsp.
		* @notifyresult_handle: This is a handle to the location in the guest where
		* the result of the taskmgmt command (result field) is
		* saved to when the response is handled. It's value is
		* preserved by iopart and returned as is in the task mgmt
		* rsp.
		* @result: Result of taskmgmt command - set by IOPart.
		*/
		struct uiscmdrsp_scsitaskmgmt {
		/* The type of task. */
		enum task_mgmt_types tasktype;

		/* The vdisk for which this task mgmt is generated. */
		struct uisscsi_dest vdest;

		/*
		* This is a handle that the guest has saved off for its own use.
		* The handle value is preserved by iopart and returned as in task
		* mgmt rsp.
		*/
		u64 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.
		* When the rsp is received by guest, the thread receiving the
		* response uses this to notify the thread waiting for taskmgmt
		* command completion. It's value is preserved by iopart and returned
		* as in the task mgmt rsp.
		*/
		u64 notify_handle;

		/*
		* This is a handle to the location in the guest where the result of
		* the taskmgmt command (result field) is saved to when the response
		* is handled. It's value is preserved by iopart and returned as in
		* the task mgmt rsp.
		*/
		u64 notifyresult_handle;

		/* Result of taskmgmt command - set by IOPart - values are: */
		char result;

		#define TASK_MGMT_FAILED 0
		} __packed;

		/* Used by uissd to send disk add/remove notifications to Guest. */
		/* Note that the vHba pointer is not used by the Client/Guest side. */
		/*
		* struct uiscmdrsp_disknotify - Used by uissd to send disk add/remove
		* notifications to Guest.
		* @add: 0-remove, 1-add.
		* @*v_hba: Channel info to route msg.
		* @channel: SCSI Path of Disk to added or removed.
		* @id: SCSI Path of Disk to added or removed.
		* @lun: SCSI Path of Disk to added or removed.
		*
		* Note that the vHba pointer is not used by the Client/Guest side.
		*/
		struct uiscmdrsp_disknotify {
		u8 add; /* 0-remove, 1-add */
		void v_hba; / channel info to route msg */
		u32 channel, id, lun; /* SCSI Path of Disk to added or removed */
		u8 add;
		void *v_hba;
		u32 channel, id, lun;
		} __packed;

		/*
		* The following is used by virthba/vSCSI to send the Acquire/Release commands
		* to the IOVM.
		* struct uiscmdrsp_vdiskmgmt - The following is used by virthba/vSCSI to send
		* the Acquire/Release commands to the IOVM.
		* @enum vdisktype: The type of task.
		* @struct vdest: The vdisk for which this task mgmt is generated.
		* @handle: This is a handle that the guest has saved off for its
		* own use. It's value is preserved by iopart and returned
		* as in the task mgmt rsp.
		* @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. When the rsp is received by
		* guest, the thread receiving the response uses this to
		* notify the thread waiting for taskmgmt command
		* completion. It's value is preserved by iopart and
		* returned as in the task mgmt rsp.
		* @notifyresult_handle: Handle to the location in guest where the result of the
		* taskmgmt command (result field) is saved to when the
		* response is handled. It's value is preserved by iopart
		* and returned as in the task mgmt rsp.
		* @result: Result of taskmgmt command - set by IOPart.
		*/
		struct uiscmdrsp_vdiskmgmt {
		/* The type of task */
		enum vdisk_mgmt_types vdisktype;

		/* The vdisk for which this task mgmt is generated */
		struct uisscsi_dest vdest;

		/*
		* This is a handle that the guest has saved off for its own use. It's
		* value is preserved by iopart and returned as in the task mgmt rsp.
		*/
		u64 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.
		* When the rsp is received by guest, the thread receiving the
		* response uses this to notify the thread waiting for taskmgmt
		* command completion. It's value is preserved by iopart and returned
		* as in the task mgmt rsp.
		*/
		u64 notify_handle;

		/*
		* Handle to the location in guest where the result of the
		* taskmgmt command (result field) is saved to when the response
		* is handled. It's value is preserved by iopart and returned as in
		* the task mgmt rsp.
		*/
		u64 notifyresult_handle;

		/* Result of taskmgmt command - set by IOPart - values are: */
		char result;
		} __packed;

		/* Keeping cmd and rsp info in one structure for now cmd rsp packet for SCSI */
		struct uiscmdrsp {
		char cmdtype;

		/* Describes what type of information is in the struct */
		#define CMD_SCSI_TYPE 1
		#define CMD_NET_TYPE 2
		@@ -509,21 +564,33 @@ struct uiscmdrsp {
		};
		/* Send the response when the cmd is done (scsi and scsittaskmgmt). */
		void *private_data;
		struct uiscmdrsp next; / General Purpose Queue Link */
		struct uiscmdrsp activeQ_next; / Pointer to the nextactive commands */
		struct uiscmdrsp activeQ_prev; / Pointer to the prevactive commands */
		/* General Purpose Queue Link */
		struct uiscmdrsp *next;
		/* Pointer to the nextactive commands */
		struct uiscmdrsp *activeQ_next;
		/* Pointer to the prevactive commands */
		struct uiscmdrsp *activeQ_prev;
		} __packed;

		/* total = 28 bytes */
		struct iochannel_vhba {
		struct vhba_wwnn wwnn; /* 8 bytes */
		struct vhba_config_max max; /* 20 bytes */
		} __packed; /* total = 28 bytes */
		/* 8 bytes */
		struct vhba_wwnn wwnn;
		/* 20 bytes */
		struct vhba_config_max max;
		} __packed;

		struct iochannel_vnic {
		u8 macaddr[6]; /* 6 bytes */
		u32 num_rcv_bufs; /* 4 bytes */
		u32 mtu; /* 4 bytes */
		uuid_le zone_uuid; /* 16 bytes */
		/* 6 bytes */
		u8 macaddr[6];
		/* 4 bytes */
		u32 num_rcv_bufs;
		/* 4 bytes */
		u32 mtu;
		/* 16 bytes */
		uuid_le zone_uuid;
		} __packed;

		/*
		* This is just the header of the IO channel. It is assumed that directly after
		* this header there is a large region of memory which contains the command and
		@@ -550,4 +617,5 @@ struct visor_io_channel {
		#define PI_PAGE_SIZE 0x1000
		#define PI_PAGE_MASK 0x0FFF

		#endif /* __IOCHANNEL_H__ */
		/* __IOCHANNEL_H__ */
		#endif