/*
* Everything needed for IOPart-GuestPart communication is define in
* this file. Note: Everything is OS-independent because this file is
- * used by Windows, Linux and possible EFI drivers. */
+ * used by Windows, Linux and possible EFI drivers.
+ */
/*
* Communication flow between the IOPart and GuestPart uses the channel headers
* IO Partition is defined below.
*/
-/*
- * Defines and enums.
- */
-
+/* Defines and enums. */
#define MINNUM(a, b) (((a) < (b)) ? (a) : (b))
#define MAXNUM(a, b) (((a) > (b)) ? (a) : (b))
-/* these define the two queues per data channel between iopart and
- * ioguestparts
- */
-#define IOCHAN_TO_IOPART 0 /* used by ioguestpart to 'insert' signals to
- * iopart */
-
-#define IOCHAN_FROM_IOPART 1 /* used by ioguestpart to 'remove' signals from
- * iopart - same queue as previous queue */
+/* 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
/* size of cdb - i.e., scsi cmnd */
#define MAX_CMND_SIZE 16
/* 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 */
+ * incoming packet
+ */
/* virtnic -> uisnic */
NET_RCV, /* incoming packet received */
/* uisnic -> virtpci */
- NET_XMIT, /* for outgoing net packets */
+ NET_XMIT, /* for outgoing net packets */
/* virtnic -> uisnic */
NET_XMIT_DONE, /* outgoing packet xmitted */
/* uisnic -> virtpci */
NET_RCV_ENBDIS, /* enable/disable packet reception */
/* virtnic -> uisnic */
- NET_RCV_ENBDIS_ACK, /* acknowledge enable/disable packet
- * reception */
+ NET_RCV_ENBDIS_ACK, /* acknowledge enable/disable packet */
+ /* reception */
/* uisnic -> virtnic */
NET_RCV_PROMISC, /* enable/disable promiscuous mode */
/* virtnic -> uisnic */
NET_CONNECT_STATUS, /* indicate the loss or restoration of a network
- * connection */
+ * connection
+ */
/* uisnic -> virtnic */
NET_MACADDR, /* indicates the client has requested to update
- * its MAC addr */
+ * its MAC addr
+ */
NET_MACADDR_ACK, /* MAC address */
};
} __packed;
/* WARNING: Values stired in this structure must contain maximum counts (not
- * maximum values). */
-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 this
- * bus */
- u32 max_lun; /* maximum SCSI LUN for devices attached to this
- * bus */
- u32 cmd_per_lun; /* maximum number of outstanding commands per
- * lun that are allowed at one time */
- u32 max_io_size; /* maximum io size for devices attached to this
- * bus */
+ * maximum values).
+ */
+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 */
} __packed;
struct uiscmdrsp_scsi {
- u64 handle; /* the handle to the cmd that was received -
- * send it back as is in the rsp packet. */
+ 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 (sg)
- * list */
+ 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 */
+ * 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 */
+ struct uisscsi_dest vdest; /* identifies the virtual hba, id, */
+ /* channel, lun to which cmd was sent */
- /* the following fields are needed to queue the rsp back to cmd
- * originator */
- int linuxstat; /* the original Linux status - for use by linux
- * vdisk code */
+ /* 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 - covers cases like timeout
- * needed by windows guests */
+ 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; */
/* it holds the sense_data struct; */
/* see that struct for details. */
- void *vdisk; /* contains pointer to the vdisk so that we can clean up
- * when the IO completes. */
+ 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,
*/
#define NO_DISK_INQUIRY_RESULT_LEN 36
-#define MIN_INQUIRY_RESULT_LEN 5 /* we need at least 5 bytes minimum for inquiry
- * result */
+#define MIN_INQUIRY_RESULT_LEN 5 /* 5 bytes minimum for inquiry result */
/* SCSI device version for no disk inquiry result */
#define SCSI_SPC2_VER 4 /* indicates SCSI SPC2 (SPC3 is 5) */
/* Windows and Linux want different things for a non-existent lun. So, we'll let
* caller pass in the peripheral qualifier and type.
- * NOTE:[4] SCSI returns (n-4); so we return length-1-4 or length-5. */
+ * NOTE:[4] SCSI returns (n-4); so we return length-1-4 or length-5.
+ */
#define SET_NO_DISK_INQUIRY_RESULT(buf, len, lun, lun0notpresent, notpresent) \
do { \
} \
} while (0)
-/*
- * Struct & Defines to support sense information.
- */
+/* Struct & Defines to support sense information. */
/* The following struct is returned in sensebuf field in uiscmdrsp_scsi. It is
* initialized in exactly the manner that is recommended in Windows (hence the
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 for
- * each fragment */
+ struct phys_info frags[MAX_PHYS_INFO]; /* physical page information */
char ethhdr[ETH_HEADER_SIZE]; /* the ethernet header */
struct {
- /* these are needed for csum at uisnic end */
- u8 valid; /* 1 = rest of this struct is valid - else
- * ignore */
+ /* 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 */
u16 protocol; /* specifies packet protocol */
struct net_pkt_rcvpost {
/* 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 phys_info frag; /* physical page information for the
- * single fragment 2K rcv buf */
- u64 unique_num; /* This is used to make sure that
- * receive posts are returned to */
+ * to be describable
+ */
+ struct phys_info frag; /* physical page information for the */
+ /* single fragment 2K rcv buf */
+ u64 unique_num;
+ /* unique_num ensure that receive posts are returned to */
/* the Adapter which we sent them originally. */
} __packed;
u32 rcv_done_len; /* length of received data */
u8 numrcvbufs; /* number of receive buffers that contain the */
/* incoming data; guest end MUST chain these together. */
- void *rcvbuf[MAX_NET_RCV_CHAIN]; /* the list of receive buffers
- * that must be chained; */
+ 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. */
u64 unique_num;
#define TASK_MGMT_FAILED 0
} __packed;
-/* The following is used by uissd to send disk add/remove notifications to
- * Guest */
+/* 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 {
u8 add; /* 0-remove, 1-add */
- void *v_hba; /* Pointer to vhba_info for channel info to
- * route msg */
+ void *v_hba; /* channel info to route msg */
u32 channel, id, lun; /* SCSI Path of Disk to added or removed */
} __packed;
/* The following is used by virthba/vSCSI to send the Acquire/Release commands
- * to the IOVM. */
+ * to the IOVM.
+ */
struct uiscmdrsp_vdiskmgmt {
enum vdisk_mgmt_types vdisktype;
struct uiscmdrsp_disknotify disknotify;
struct uiscmdrsp_vdiskmgmt vdiskmgmt;
};
- void *private_data; /* used to send the response when the cmd is
- * done (scsi & scsittaskmgmt). */
+ void *private_data; /* send the response when the cmd is */
+ /* done (scsi & scsittaskmgmt). */
struct uiscmdrsp *next; /* General Purpose Queue Link */
struct uiscmdrsp *activeQ_next; /* Used to track active commands */
struct uiscmdrsp *activeQ_prev; /* Used to track active commands */
} __packed;
#define MAX_CLIENTSTRING_LEN 1024
- u8 client_string[MAX_CLIENTSTRING_LEN];/* NULL terminated - so holds
- * max - 1 bytes */
+ /* client_string is NULL termimated so holds max -1 bytes */
+ u8 client_string[MAX_CLIENTSTRING_LEN];
} __packed;
-
-/*
- * INLINE functions for initializing and accessing I/O data channels
- */
-
+/* INLINE functions for initializing and accessing I/O data channels */
#define SIZEOF_PROTOCOL (COVER(sizeof(struct spar_io_channel_protocol), 64))
#define SIZEOF_CMDRSP (COVER(sizeof(struct uiscmdrsp), 64))
projects / openwrt / staging / blogic.git / commitdiff