diff options
Diffstat (limited to 'drivers/staging/unisys/include')
| -rw-r--r-- | drivers/staging/unisys/include/channel.h | 10 | ||||
| -rw-r--r-- | drivers/staging/unisys/include/iochannel.h | 42 | ||||
| -rw-r--r-- | drivers/staging/unisys/include/visorbus.h | 127 |
3 files changed, 73 insertions, 106 deletions
diff --git a/drivers/staging/unisys/include/channel.h b/drivers/staging/unisys/include/channel.h index 5af59a5fc..db4e6b287 100644 --- a/drivers/staging/unisys/include/channel.h +++ b/drivers/staging/unisys/include/channel.h @@ -76,9 +76,9 @@ enum channel_clientstate { }; static inline const u8 * -ULTRA_CHANNELCLI_STRING(u32 v) +ULTRA_CHANNELCLI_STRING(u32 state) { - switch (v) { + switch (state) { case CHANNELCLI_DETACHED: return (const u8 *)("DETACHED"); case CHANNELCLI_DISABLED: @@ -411,7 +411,7 @@ spar_channel_client_acquire_os(void __iomem *ch, u8 *id) mb(); /* required for channel synch */ } if (readl(&hdr->cli_state_os) == CHANNELCLI_OWNED) { - if (readb(&hdr->cli_error_os) != 0) { + if (readb(&hdr->cli_error_os)) { /* we are in an error msg throttling state; * come out of it */ @@ -459,7 +459,7 @@ spar_channel_client_acquire_os(void __iomem *ch, u8 *id) mb(); /* required for channel synch */ return 0; } - if (readb(&hdr->cli_error_os) != 0) { + if (readb(&hdr->cli_error_os)) { /* we are in an error msg throttling state; come out of it */ pr_info("%s Channel OS client acquire now successful\n", id); writeb(0, &hdr->cli_error_os); @@ -472,7 +472,7 @@ spar_channel_client_release_os(void __iomem *ch, u8 *id) { struct channel_header __iomem *hdr = ch; - if (readb(&hdr->cli_error_os) != 0) { + if (readb(&hdr->cli_error_os)) { /* we are in an error msg throttling state; come out of it */ pr_info("%s Channel OS client error state cleared\n", id); writeb(0, &hdr->cli_error_os); diff --git a/drivers/staging/unisys/include/iochannel.h b/drivers/staging/unisys/include/iochannel.h index 880d9f04c..5ccf81485 100644 --- a/drivers/staging/unisys/include/iochannel.h +++ b/drivers/staging/unisys/include/iochannel.h @@ -253,48 +253,6 @@ struct uiscmdrsp_scsi { /* 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. - */ - -#define SET_NO_DISK_INQUIRY_RESULT(buf, len, lun, lun0notpresent, notpresent) \ - do { \ - memset(buf, 0, \ - MINNUM(len, \ - (unsigned int)NO_DISK_INQUIRY_RESULT_LEN)); \ - buf[2] = (u8)SCSI_SPC2_VER; \ - if (lun == 0) { \ - buf[0] = (u8)lun0notpresent; \ - buf[3] = (u8)DEV_HISUPPORT; \ - } else \ - buf[0] = (u8)notpresent; \ - buf[4] = (u8)( \ - MINNUM(len, \ - (unsigned int)NO_DISK_INQUIRY_RESULT_LEN) - 5);\ - if (len >= NO_DISK_INQUIRY_RESULT_LEN) { \ - buf[8] = 'D'; \ - buf[9] = 'E'; \ - buf[10] = 'L'; \ - buf[11] = 'L'; \ - buf[16] = 'P'; \ - buf[17] = 'S'; \ - buf[18] = 'E'; \ - buf[19] = 'U'; \ - buf[20] = 'D'; \ - buf[21] = 'O'; \ - buf[22] = ' '; \ - buf[23] = 'D'; \ - buf[24] = 'E'; \ - buf[25] = 'V'; \ - buf[26] = 'I'; \ - buf[27] = 'C'; \ - buf[28] = 'E'; \ - buf[30] = ' '; \ - buf[31] = '.'; \ - } \ - } while (0) - /* Struct & Defines to support sense information. */ /* The following struct is returned in sensebuf field in uiscmdrsp_scsi. It is diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index 2a64a9ce0..9baf1ec70 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -61,54 +61,55 @@ struct visor_channeltype_descriptor { const char *name; }; -/** Information provided by each visor driver when it registers with the - * visorbus driver. +/** + * struct visor_driver - Information provided by each visor driver when it + * registers with the visorbus driver. + * @name: Name of the visor driver. + * @version: The numbered version of the driver (x.x.xxx). + * @vertag: A human readable version string. + * @owner: The module owner. + * @channel_types: Types of channels handled by this driver, ending with + * a zero GUID. Our specialized BUS.match() method knows + * about this list, and uses it to determine whether this + * driver will in fact handle a new device that it has + * detected. + * @probe: Called when a new device comes online, by our probe() + * function specified by driver.probe() (triggered + * ultimately by some call to driver_register(), + * bus_add_driver(), or driver_attach()). + * @remove: Called when a new device is removed, by our remove() + * function specified by driver.remove() (triggered + * ultimately by some call to device_release_driver()). + * @channel_interrupt: Called periodically, whenever there is a possiblity + * that "something interesting" may have happened to the + * channel. + * @pause: Called to initiate a change of the device's state. If + * the return valu`e is < 0, there was an error and the + * state transition will NOT occur. If the return value + * is >= 0, then the state transition was INITIATED + * successfully, and complete_func() will be called (or + * was just called) with the final status when either the + * state transition fails or completes successfully. + * @resume: Behaves similar to pause. + * @driver: Private reference to the device driver. For use by bus + * driver only. + * @version_attr: Private version field. For use by bus driver only. */ struct visor_driver { const char *name; const char *version; const char *vertag; - const char *build_date; - const char *build_time; struct module *owner; - - /** Types of channels handled by this driver, ending with 0 GUID. - * Our specialized BUS.match() method knows about this list, and - * uses it to determine whether this driver will in fact handle a - * new device that it has detected. - */ struct visor_channeltype_descriptor *channel_types; - - /** Called when a new device comes online, by our probe() function - * specified by driver.probe() (triggered ultimately by some call - * to driver_register() / bus_add_driver() / driver_attach()). - */ int (*probe)(struct visor_device *dev); - - /** Called when a new device is removed, by our remove() function - * specified by driver.remove() (triggered ultimately by some call - * to device_release_driver()). - */ void (*remove)(struct visor_device *dev); - - /** Called periodically, whenever there is a possibility that - * "something interesting" may have happened to the channel state. - */ void (*channel_interrupt)(struct visor_device *dev); - - /** Called to initiate a change of the device's state. If the return - * valu`e is < 0, there was an error and the state transition will NOT - * occur. If the return value is >= 0, then the state transition was - * INITIATED successfully, and complete_func() will be called (or was - * just called) with the final status when either the state transition - * fails or completes successfully. - */ int (*pause)(struct visor_device *dev, visorbus_state_complete_func complete_func); int (*resume)(struct visor_device *dev, visorbus_state_complete_func complete_func); - /** These fields are for private use by the bus driver only. */ + /* These fields are for private use by the bus driver only. */ struct device_driver driver; struct driver_attribute version_attr; }; @@ -116,48 +117,58 @@ struct visor_driver { #define to_visor_driver(x) ((x) ? \ (container_of(x, struct visor_driver, driver)) : (NULL)) -/** A device type for things "plugged" into the visorbus bus */ +/** + * struct visor_device - A device type for things "plugged" into the visorbus + * bus + * visorchannel: Points to the channel that the device is + * associated with. + * channel_type_guid: Identifies the channel type to the bus driver. + * device: Device struct meant for use by the bus driver + * only. + * list_all: Used by the bus driver to enumerate devices. + * periodic_work: Device work queue. Private use by bus driver + * only. + * being_removed: Indicates that the device is being removed from + * the bus. Private bus driver use only. + * visordriver_callback_lock: Used by the bus driver to lock when handling + * channel events. + * pausing: Indicates that a change towards a paused state. + * is in progress. Only modified by the bus driver. + * resuming: Indicates that a change towards a running state + * is in progress. Only modified by the bus driver. + * chipset_bus_no: Private field used by the bus driver. + * chipset_dev_no: Private field used the bus driver. + * state: Used to indicate the current state of the + * device. + * inst: Unique GUID for this instance of the device. + * name: Name of the device. + * pending_msg_hdr: For private use by bus driver to respond to + * hypervisor requests. + * vbus_hdr_info: A pointer to header info. Private use by bus + * driver. + * partition_uuid: Indicates client partion id. This should be the + * same across all visor_devices in the current + * guest. Private use by bus driver only. + */ struct visor_device { - /** visor driver can use the visorchannel member with the functions - * defined in visorchannel.h to access the channel - */ struct visorchannel *visorchannel; uuid_le channel_type_guid; - u64 channel_bytes; - - /** These fields are for private use by the bus driver only. - * A notable exception is that the visor driver can use - * visor_get_drvdata() and visor_set_drvdata() to retrieve or stash - * private visor driver specific data within the device member. - */ + /* These fields are for private use by the bus driver only. */ struct device device; struct list_head list_all; struct periodic_work *periodic_work; bool being_removed; - bool responded_to_device_create; - struct kobject kobjdevmajorminor; /* visorbus<x>/dev<y>/devmajorminor/*/ - struct { - int major, minor; - void *attr; /* private use by devmajorminor_attr.c you can - * change this constant to whatever you want - */ - } devnodes[5]; - /* the code will detect and behave appropriately) */ struct semaphore visordriver_callback_lock; bool pausing; bool resuming; u32 chipset_bus_no; u32 chipset_dev_no; struct visorchipset_state state; - uuid_le type; uuid_le inst; u8 *name; - u8 *description; struct controlvm_message_header *pending_msg_hdr; void *vbus_hdr_info; - u32 switch_no; - u32 internal_port_no; uuid_le partition_uuid; }; @@ -174,8 +185,6 @@ int visorbus_write_channel(struct visor_device *dev, unsigned long nbytes); int visorbus_clear_channel(struct visor_device *dev, unsigned long offset, u8 ch, unsigned long nbytes); -int visorbus_registerdevnode(struct visor_device *dev, - const char *name, int major, int minor); void visorbus_enable_channel_interrupts(struct visor_device *dev); void visorbus_disable_channel_interrupts(struct visor_device *dev); #endif |