diff options
Diffstat (limited to 'drivers/staging/unisys/include')
| -rw-r--r-- | drivers/staging/unisys/include/channel.h | 361 | ||||
| -rw-r--r-- | drivers/staging/unisys/include/iochannel.h | 554 | ||||
| -rw-r--r-- | drivers/staging/unisys/include/visorbus.h | 44 |
3 files changed, 452 insertions, 507 deletions
diff --git a/drivers/staging/unisys/include/channel.h b/drivers/staging/unisys/include/channel.h index 692efcb38245..2babe93631f3 100644 --- a/drivers/staging/unisys/include/channel.h +++ b/drivers/staging/unisys/include/channel.h @@ -1,4 +1,5 @@ -/* Copyright (C) 2010 - 2013 UNISYS CORPORATION +/* + * Copyright (C) 2010 - 2013 UNISYS CORPORATION * All rights reserved. * * This program is free software; you can redistribute it and/or modify @@ -20,87 +21,48 @@ #include <linux/io.h> #include <linux/uuid.h> -#define __SUPERVISOR_CHANNEL_H__ - #define SIGNATURE_16(A, B) ((A) | ((B) << 8)) #define SIGNATURE_32(A, B, C, D) \ (SIGNATURE_16(A, B) | (SIGNATURE_16(C, D) << 16)) -#define SIGNATURE_64(A, B, C, D, E, F, G, H) \ - (SIGNATURE_32(A, B, C, D) | ((u64)(SIGNATURE_32(E, F, G, H)) << 32)) - -#ifndef COVER -#define COVER(v, d) ((d) * DIV_ROUND_UP(v, d)) -#endif - #define VISOR_CHANNEL_SIGNATURE SIGNATURE_32('E', 'C', 'N', 'L') +/* + * enum channel_serverstate + * @CHANNELSRV_UNINITIALIZED: Channel is in an undefined state. + * @CHANNELSRV_READY: Channel has been initialized by server. + */ enum channel_serverstate { - CHANNELSRV_UNINITIALIZED = 0, /* channel is in an undefined state */ - CHANNELSRV_READY = 1 /* channel has been initialized by server */ + CHANNELSRV_UNINITIALIZED = 0, + CHANNELSRV_READY = 1 }; +/* + * enum channel_clientstate + * @CHANNELCLI_DETACHED: + * @CHANNELCLI_DISABLED: Client can see channel but is NOT allowed to use it + * unless given TBD* explicit request + * (should actually be < DETACHED). + * @CHANNELCLI_ATTACHING: Legacy EFI client request for EFI server to attach. + * @CHANNELCLI_ATTACHED: Idle, but client may want to use channel any time. + * @CHANNELCLI_BUSY: Client either wants to use or is using channel. + * @CHANNELCLI_OWNED: "No worries" state - client can access channel + * anytime. + */ enum channel_clientstate { CHANNELCLI_DETACHED = 0, - CHANNELCLI_DISABLED = 1, /* client can see channel but is NOT - * allowed to use it unless given TBD - * explicit request (should actually be - * < DETACHED) - */ - CHANNELCLI_ATTACHING = 2, /* legacy EFI client request - * for EFI server to attach - */ - CHANNELCLI_ATTACHED = 3, /* idle, but client may want - * to use channel any time - */ - CHANNELCLI_BUSY = 4, /* client either wants to use or is - * using channel - */ - CHANNELCLI_OWNED = 5 /* "no worries" state - client can */ - /* access channel anytime */ + CHANNELCLI_DISABLED = 1, + CHANNELCLI_ATTACHING = 2, + CHANNELCLI_ATTACHED = 3, + CHANNELCLI_BUSY = 4, + CHANNELCLI_OWNED = 5 }; -#define VISOR_CHANNEL_SERVER_READY(ch) \ - (readl(&(ch)->srv_state) == CHANNELSRV_READY) - -#define VISOR_VALID_CHANNELCLI_TRANSITION(o, n) \ - (((((o) == CHANNELCLI_DETACHED) && ((n) == CHANNELCLI_DISABLED)) || \ - (((o) == CHANNELCLI_ATTACHING) && ((n) == CHANNELCLI_DISABLED)) || \ - (((o) == CHANNELCLI_ATTACHED) && ((n) == CHANNELCLI_DISABLED)) || \ - (((o) == CHANNELCLI_ATTACHING) && ((n) == CHANNELCLI_DETACHED)) || \ - (((o) == CHANNELCLI_ATTACHED) && ((n) == CHANNELCLI_DETACHED)) || \ - (((o) == CHANNELCLI_DETACHED) && ((n) == CHANNELCLI_ATTACHING)) || \ - (((o) == CHANNELCLI_ATTACHING) && ((n) == CHANNELCLI_ATTACHED)) || \ - (((o) == CHANNELCLI_DETACHED) && ((n) == CHANNELCLI_ATTACHED)) || \ - (((o) == CHANNELCLI_BUSY) && ((n) == CHANNELCLI_ATTACHED)) || \ - (((o) == CHANNELCLI_ATTACHED) && ((n) == CHANNELCLI_BUSY)) || \ - (((o) == CHANNELCLI_DETACHED) && ((n) == CHANNELCLI_OWNED)) || \ - (((o) == CHANNELCLI_DISABLED) && ((n) == CHANNELCLI_OWNED)) || \ - (((o) == CHANNELCLI_ATTACHING) && ((n) == CHANNELCLI_OWNED)) || \ - (((o) == CHANNELCLI_ATTACHED) && ((n) == CHANNELCLI_OWNED)) || \ - (((o) == CHANNELCLI_BUSY) && ((n) == CHANNELCLI_OWNED)) || (0)) \ - ? (1) : (0)) - -/* Values for VISORA_CHANNEL_PROTOCOL.CliErrorBoot: */ -/* throttling invalid boot channel statetransition error due to client - * disabled - */ -#define VISOR_CLIERRORBOOT_THROTTLEMSG_DISABLED 0x01 - -/* throttling invalid boot channel statetransition error due to client - * not attached - */ -#define VISOR_CLIERRORBOOT_THROTTLEMSG_NOTATTACHED 0x02 - -/* throttling invalid boot channel statetransition error due to busy channel */ -#define VISOR_CLIERRORBOOT_THROTTLEMSG_BUSY 0x04 - -/* Values for VISOR_CHANNEL_PROTOCOL.Features: This define exists so - * that windows guest can look at the FeatureFlags in the io channel, - * and configure the windows driver to use interrupts or not based on - * this setting. This flag is set in uislib after the - * VISOR_VHBA_init_channel is called. All feature bits for all - * channels should be defined here. The io channel feature bits are - * defined right here +/* + * Values for VISOR_CHANNEL_PROTOCOL.Features: This define exists so that + * a guest can look at the FeatureFlags in the io channel, and configure the + * driver to use interrupts or not based on this setting. All feature bits for + * all channels should be defined here. The io channel feature bits are defined + * below. */ #define VISOR_DRIVER_ENABLES_INTS (0x1ULL << 1) #define VISOR_CHANNEL_IS_POLLING (0x1ULL << 3) @@ -108,171 +70,124 @@ enum channel_clientstate { #define VISOR_DRIVER_DISABLES_INTS (0x1ULL << 5) #define VISOR_DRIVER_ENHANCED_RCVBUF_CHECKING (0x1ULL << 6) -/* Common Channel Header */ +/* + * struct channel_header - Common Channel Header + * @signature: Signature. + * @legacy_state: DEPRECATED - being replaced by. + * @header_size: sizeof(struct channel_header). + * @size: Total size of this channel in bytes. + * @features: Flags to modify behavior. + * @chtype: Channel type: data, bus, control, etc.. + * @partition_handle: ID of guest partition. + * @handle: Device number of this channel in client. + * @ch_space_offset: Offset in bytes to channel specific area. + * @version_id: Struct channel_header Version ID. + * @partition_index: Index of guest partition. + * @zone_uuid: Guid of Channel's zone. + * @cli_str_offset: Offset from channel header to null-terminated + * ClientString (0 if ClientString not present). + * @cli_state_boot: CHANNEL_CLIENTSTATE of pre-boot EFI client of this + * channel. + * @cmd_state_cli: CHANNEL_COMMANDSTATE (overloaded in Windows drivers, see + * ServerStateUp, ServerStateDown, etc). + * @cli_state_os: CHANNEL_CLIENTSTATE of Guest OS client of this channel. + * @ch_characteristic: CHANNEL_CHARACTERISTIC_<xxx>. + * @cmd_state_srv: CHANNEL_COMMANDSTATE (overloaded in Windows drivers, see + * ServerStateUp, ServerStateDown, etc). + * @srv_state: CHANNEL_SERVERSTATE. + * @cli_error_boot: Bits to indicate err states for boot clients, so err + * messages can be throttled. + * @cli_error_os: Bits to indicate err states for OS clients, so err + * messages can be throttled. + * @filler: Pad out to 128 byte cacheline. + * @recover_channel: Please add all new single-byte values below here. + */ struct channel_header { - u64 signature; /* Signature */ - u32 legacy_state; /* DEPRECATED - being replaced by */ - /* SrvState, CliStateBoot, and CliStateOS below */ - u32 header_size; /* sizeof(struct channel_header) */ - u64 size; /* Total size of this channel in bytes */ - u64 features; /* Flags to modify behavior */ - uuid_le chtype; /* Channel type: data, bus, control, etc. */ - u64 partition_handle; /* ID of guest partition */ - u64 handle; /* Device number of this channel in client */ - u64 ch_space_offset; /* Offset in bytes to channel specific area */ - u32 version_id; /* struct channel_header Version ID */ - u32 partition_index; /* Index of guest partition */ - uuid_le zone_uuid; /* Guid of Channel's zone */ - u32 cli_str_offset; /* offset from channel header to - * nul-terminated ClientString (0 if - * ClientString not present) - */ - u32 cli_state_boot; /* CHANNEL_CLIENTSTATE of pre-boot - * EFI client of this channel - */ - u32 cmd_state_cli; /* CHANNEL_COMMANDSTATE (overloaded in - * Windows drivers, see ServerStateUp, - * ServerStateDown, etc) - */ - u32 cli_state_os; /* CHANNEL_CLIENTSTATE of Guest OS - * client of this channel - */ - u32 ch_characteristic; /* CHANNEL_CHARACTERISTIC_<xxx> */ - u32 cmd_state_srv; /* CHANNEL_COMMANDSTATE (overloaded in - * Windows drivers, see ServerStateUp, - * ServerStateDown, etc) - */ - u32 srv_state; /* CHANNEL_SERVERSTATE */ - u8 cli_error_boot; /* bits to indicate err states for - * boot clients, so err messages can - * be throttled - */ - u8 cli_error_os; /* bits to indicate err states for OS - * clients, so err messages can be - * throttled - */ - u8 filler[1]; /* Pad out to 128 byte cacheline */ - /* Please add all new single-byte values below here */ + u64 signature; + u32 legacy_state; + /* SrvState, CliStateBoot, and CliStateOS below */ + u32 header_size; + u64 size; + u64 features; + guid_t chtype; + u64 partition_handle; + u64 handle; + u64 ch_space_offset; + u32 version_id; + u32 partition_index; + guid_t zone_guid; + u32 cli_str_offset; + u32 cli_state_boot; + u32 cmd_state_cli; + u32 cli_state_os; + u32 ch_characteristic; + u32 cmd_state_srv; + u32 srv_state; + u8 cli_error_boot; + u8 cli_error_os; + u8 filler[1]; u8 recover_channel; } __packed; #define VISOR_CHANNEL_ENABLE_INTS (0x1ULL << 0) -/* Subheader for the Signal Type variation of the Common Channel */ +/* + * struct signal_queue_header - Subheader for the Signal Type variation of the + * Common Channel. + * @version: SIGNAL_QUEUE_HEADER Version ID. + * @chtype: Queue type: storage, network. + * @size: Total size of this queue in bytes. + * @sig_base_offset: Offset to signal queue area. + * @features: Flags to modify behavior. + * @num_sent: Total # of signals placed in this queue. + * @num_overflows: Total # of inserts failed due to full queue. + * @signal_size: Total size of a signal for this queue. + * @max_slots: Max # of slots in queue, 1 slot is always empty. + * @max_signals: Max # of signals in queue (MaxSignalSlots-1). + * @head: Queue head signal #. + * @num_received: Total # of signals removed from this queue. + * @tail: Queue tail signal. + * @reserved1: Reserved field. + * @reserved2: Reserved field. + * @client_queue: + * @num_irq_received: Total # of Interrupts received. This is incremented by the + * ISR in the guest windows driver. + * @num_empty: Number of times that visor_signal_remove is called and + * returned Empty Status. + * @errorflags: Error bits set during SignalReinit to denote trouble with + * client's fields. + * @filler: Pad out to 64 byte cacheline. + */ struct signal_queue_header { /* 1st cache line */ - u32 version; /* SIGNAL_QUEUE_HEADER Version ID */ - u32 chtype; /* Queue type: storage, network */ - u64 size; /* Total size of this queue in bytes */ - u64 sig_base_offset; /* Offset to signal queue area */ - u64 features; /* Flags to modify behavior */ - u64 num_sent; /* Total # of signals placed in this queue */ - u64 num_overflows; /* Total # of inserts failed due to - * full queue - */ - u32 signal_size; /* Total size of a signal for this queue */ - u32 max_slots; /* Max # of slots in queue, 1 slot is - * always empty - */ - u32 max_signals; /* Max # of signals in queue - * (MaxSignalSlots-1) - */ - u32 head; /* Queue head signal # */ + u32 version; + u32 chtype; + u64 size; + u64 sig_base_offset; + u64 features; + u64 num_sent; + u64 num_overflows; + u32 signal_size; + u32 max_slots; + u32 max_signals; + u32 head; /* 2nd cache line */ - u64 num_received; /* Total # of signals removed from this queue */ - u32 tail; /* Queue tail signal */ - u32 reserved1; /* Reserved field */ - u64 reserved2; /* Reserved field */ + u64 num_received; + u32 tail; + u32 reserved1; + u64 reserved2; u64 client_queue; - u64 num_irq_received; /* Total # of Interrupts received. This - * is incremented by the ISR in the - * guest windows driver - */ - u64 num_empty; /* Number of times that visor_signal_remove - * is called and returned Empty Status. - */ - u32 errorflags; /* Error bits set during SignalReinit - * to denote trouble with client's - * fields - */ - u8 filler[12]; /* Pad out to 64 byte cacheline */ + u64 num_irq_received; + u64 num_empty; + u32 errorflags; + u8 filler[12]; } __packed; -/* Generic function useful for validating any type of channel when it is - * received by the client that will be accessing the channel. - * Note that <logCtx> is only needed for callers in the EFI environment, and - * is used to pass the EFI_DIAG_CAPTURE_PROTOCOL needed to log messages. - */ -static inline int -visor_check_channel(struct channel_header *ch, - uuid_le expected_uuid, - char *chname, - u64 expected_min_bytes, - u32 expected_version, - u64 expected_signature) -{ - if (uuid_le_cmp(expected_uuid, NULL_UUID_LE) != 0) { - /* caller wants us to verify type GUID */ - if (uuid_le_cmp(ch->chtype, expected_uuid) != 0) { - pr_err("Channel mismatch on channel=%s(%pUL) field=type expected=%pUL actual=%pUL\n", - chname, &expected_uuid, - &expected_uuid, &ch->chtype); - return 0; - } - } - if (expected_min_bytes > 0) { /* verify channel size */ - if (ch->size < expected_min_bytes) { - pr_err("Channel mismatch on channel=%s(%pUL) field=size expected=0x%-8.8Lx actual=0x%-8.8Lx\n", - chname, &expected_uuid, - (unsigned long long)expected_min_bytes, - ch->size); - return 0; - } - } - if (expected_version > 0) { /* verify channel version */ - if (ch->version_id != expected_version) { - pr_err("Channel mismatch on channel=%s(%pUL) field=version expected=0x%-8.8lx actual=0x%-8.8x\n", - chname, &expected_uuid, - (unsigned long)expected_version, - ch->version_id); - return 0; - } - } - if (expected_signature > 0) { /* verify channel signature */ - if (ch->signature != expected_signature) { - pr_err("Channel mismatch on channel=%s(%pUL) field=signature expected=0x%-8.8Lx actual=0x%-8.8Lx\n", - chname, &expected_uuid, - expected_signature, ch->signature); - return 0; - } - } - return 1; -} - -/* - * CHANNEL Guids - */ - +/* CHANNEL Guids */ /* {414815ed-c58c-11da-95a9-00e08161165f} */ -#define VISOR_VHBA_CHANNEL_UUID \ - UUID_LE(0x414815ed, 0xc58c, 0x11da, \ - 0x95, 0xa9, 0x0, 0xe0, 0x81, 0x61, 0x16, 0x5f) -static const uuid_le visor_vhba_channel_uuid = VISOR_VHBA_CHANNEL_UUID; -#define VISOR_VHBA_CHANNEL_UUID_STR \ +#define VISOR_VHBA_CHANNEL_GUID \ + GUID_INIT(0x414815ed, 0xc58c, 0x11da, \ + 0x95, 0xa9, 0x0, 0xe0, 0x81, 0x61, 0x16, 0x5f) +#define VISOR_VHBA_CHANNEL_GUID_STR \ "414815ed-c58c-11da-95a9-00e08161165f" - -/* {8cd5994d-c58e-11da-95a9-00e08161165f} */ -#define VISOR_VNIC_CHANNEL_UUID \ - UUID_LE(0x8cd5994d, 0xc58e, 0x11da, \ - 0x95, 0xa9, 0x0, 0xe0, 0x81, 0x61, 0x16, 0x5f) -static const uuid_le visor_vnic_channel_uuid = VISOR_VNIC_CHANNEL_UUID; -#define VISOR_VNIC_CHANNEL_UUID_STR \ - "8cd5994d-c58e-11da-95a9-00e08161165f" - -/* {72120008-4AAB-11DC-8530-444553544200} */ -#define VISOR_SIOVM_UUID \ - UUID_LE(0x72120008, 0x4AAB, 0x11DC, \ - 0x85, 0x30, 0x44, 0x45, 0x53, 0x54, 0x42, 0x00) -static const uuid_le visor_siovm_uuid = VISOR_SIOVM_UUID; - #endif diff --git a/drivers/staging/unisys/include/iochannel.h b/drivers/staging/unisys/include/iochannel.h index c7cb3fbde7b2..a70760f48566 100644 --- a/drivers/staging/unisys/include/iochannel.h +++ b/drivers/staging/unisys/include/iochannel.h @@ -1,5 +1,19 @@ -/* Copyright (C) 2010 - 2016 UNISYS CORPORATION */ -/* All rights reserved. */ +/* + * Copyright (C) 2010 - 2016 UNISYS CORPORATION + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + */ + #ifndef __IOCHANNEL_H__ #define __IOCHANNEL_H__ @@ -7,9 +21,7 @@ * 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. - */ - -/* + * * Communication flow between the IOPart and GuestPart uses the channel headers * channel state. The following states are currently being used: * UNINIT(All Zeroes), CHANNEL_ATTACHING, CHANNEL_ATTACHED, CHANNEL_OPENED @@ -30,14 +42,10 @@ */ #include <linux/uuid.h> +#include <linux/skbuff.h> -#include <linux/dma-direction.h> #include "channel.h" -#define VISOR_VHBA_CHANNEL_SIGNATURE VISOR_CHANNEL_SIGNATURE -#define VISOR_VNIC_CHANNEL_SIGNATURE VISOR_CHANNEL_SIGNATURE -#define VISOR_VSWITCH_CHANNEL_SIGNATURE VISOR_CHANNEL_SIGNATURE - /* * Must increment these whenever you insert or delete fields within this channel * struct. Also increment whenever you change the meaning of fields within this @@ -47,82 +55,73 @@ */ #define VISOR_VHBA_CHANNEL_VERSIONID 2 #define VISOR_VNIC_CHANNEL_VERSIONID 2 -#define VISOR_VSWITCH_CHANNEL_VERSIONID 1 - -#define VISOR_VHBA_CHANNEL_OK_CLIENT(ch) \ - (visor_check_channel(ch, visor_vhba_channel_uuid, \ - "vhba", MIN_IO_CHANNEL_SIZE, \ - VISOR_VHBA_CHANNEL_VERSIONID, \ - VISOR_VHBA_CHANNEL_SIGNATURE)) - -#define VISOR_VNIC_CHANNEL_OK_CLIENT(ch) \ - (visor_check_channel(ch, visor_vnic_channel_uuid, \ - "vnic", MIN_IO_CHANNEL_SIZE, \ - VISOR_VNIC_CHANNEL_VERSIONID, \ - VISOR_VNIC_CHANNEL_SIGNATURE)) /* * Everything necessary to handle SCSI & NIC traffic between Guest Partition and * IO Partition is defined below. */ -/* Defines and enums. */ -#define MINNUM(a, b) (((a) < (b)) ? (a) : (b)) -#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 the two queues per data channel between iopart and ioguestparts. + * IOCHAN_TO_IOPART -- used by guest to 'insert' signals to iopart. + * IOCHAN_FROM_IOPART -- used by guest to 'remove' signals from IO part. + */ #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 -#define MAX_SENSE_SIZE 64 +/* Unisys-specific DMA direction values */ +enum uis_dma_data_direction { + UIS_DMA_BIDIRECTIONAL = 0, + UIS_DMA_TO_DEVICE = 1, + UIS_DMA_FROM_DEVICE = 2, + UIS_DMA_NONE = 3 +}; +#define MAX_SENSE_SIZE 64 #define MAX_PHYS_INFO 64 -/* Various types of network packets that can be sent in cmdrsp. */ +/* + * 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. + */ 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 - */ - NET_MACADDR_ACK, /* MAC address acknowledge */ - + 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. */ @@ -154,12 +153,16 @@ struct guest_phys_info { u64 length; } __packed; -#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 { @@ -168,61 +171,77 @@ struct vhba_wwnn { } __packed; /* - * WARNING: Values stired in this structure must contain maximum counts (not + * 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 stored 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 + * + * @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. + * @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; /* 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 */ - + u64 handle; + u8 cmnd[MAX_CMND_SIZE]; + u32 bufflen; + u16 guest_phys_entries; + struct guest_phys_info gpi_list[MAX_PHYS_INFO]; + u32 data_dir; + struct uisscsi_dest vdest; /* 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 */ + 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]; /* 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. */ + u8 sensebuf[MAX_SENSE_SIZE]; + void *vdisk; int 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. - */ } __packed; /* * Defines to support sending correct inquiry result when no disk is * configured. - */ - -/* + * * From SCSI SPC2 - * * If the target is not capable of supporting a device on this logical unit, the @@ -234,22 +253,35 @@ 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 - */ - -#define DEV_DISK_CAPABLE_NOT_PRESENT 0x20 /* peripheral qualifier of 0x1 - * peripheral type of 0 - disk - * Specifies device capable, but - * not present - */ +/* + * 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 -#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 +290,12 @@ 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 +330,48 @@ struct sense_data { u8 sense_key_specific[3]; } __packed; +/* + * 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; /* 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 */ + int len; + int num_frags; + struct phys_info frags[MAX_PHYS_INFO]; + char ethhdr[ETH_HLEN]; 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 */ + u8 valid; + u8 hrawoffv; + u8 nhrawoffv; + __be16 protocol; + __wsum csum; + u32 hrawoff; + u32 nhrawoff; } lincsum; - - /* - * 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. - */ } __packed; struct net_pkt_xmtdone { - u32 xmt_done_result; /* result of NET_XMIT */ + /* Result of NET_XMIT */ + u32 xmt_done_result; } __packed; /* @@ -341,14 +387,12 @@ 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. @@ -358,172 +402,157 @@ 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 { - 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 */ -} __packed; - /* - * The following is used by virthba/vSCSI to send the Acquire/Release commands - * to the IOVM. + * 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_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; +struct uiscmdrsp_disknotify { + u8 add; + void *v_hba; + u32 channel, id, lun; } __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 */ + /* Describes what type of information is in the struct */ #define CMD_SCSI_TYPE 1 #define CMD_NET_TYPE 2 #define CMD_SCSITASKMGMT_TYPE 3 #define CMD_NOTIFYGUEST_TYPE 4 -#define CMD_VDISKMGMT_TYPE 5 union { struct uiscmdrsp_scsi scsi; struct uiscmdrsp_net net; struct uiscmdrsp_scsitaskmgmt scsitaskmgmt; struct uiscmdrsp_disknotify disknotify; - struct uiscmdrsp_vdiskmgmt vdiskmgmt; }; /* 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 */ + guid_t zone_guid; } __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 @@ -544,10 +573,11 @@ struct visor_io_channel { } __packed; /* INLINE functions for initializing and accessing I/O data channels. */ -#define SIZEOF_CMDRSP (COVER(sizeof(struct uiscmdrsp), 64)) +#define SIZEOF_CMDRSP (64 * DIV_ROUND_UP(sizeof(struct uiscmdrsp), 64)) /* Use 4K page sizes when passing page info between Guest and IOPartition. */ #define PI_PAGE_SIZE 0x1000 #define PI_PAGE_MASK 0x0FFF -#endif /* __IOCHANNEL_H__ */ +/* __IOCHANNEL_H__ */ +#endif diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index de0635542fbd..e4ee38c3dbe4 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -1,5 +1,4 @@ -/* visorbus.h - * +/* * Copyright (C) 2010 - 2013 UNISYS CORPORATION * All rights reserved. * @@ -23,7 +22,6 @@ * * There should be nothing in this file that is private to the visorbus * bus implementation itself. - * */ #ifndef __VISORBUS_H__ @@ -31,20 +29,16 @@ #include <linux/device.h> #include <linux/module.h> -#include <linux/poll.h> -#include <linux/kernel.h> -#include <linux/uuid.h> -#include <linux/seq_file.h> #include <linux/slab.h> #include "channel.h" -struct visor_driver; struct visor_device; extern struct bus_type visorbus_type; typedef void (*visorbus_state_complete_func) (struct visor_device *dev, int status); + struct visorchipset_state { u32 created:1; u32 attached:1; @@ -54,11 +48,12 @@ struct visorchipset_state { /* Remaining bits in this 32-bit word are unused. */ }; -/** This struct describes a specific Supervisor channel, by providing its - * GUID, name, and sizes. +/* + * This struct describes a specific Supervisor channel, by providing its + * GUID, name, and sizes. */ struct visor_channeltype_descriptor { - const uuid_le guid; + const guid_t guid; const char *name; }; @@ -109,8 +104,7 @@ struct visor_driver { struct device_driver driver; }; -#define to_visor_driver(x) ((x) ? \ - (container_of(x, struct visor_driver, driver)) : (NULL)) +#define to_visor_driver(x) (container_of(x, struct visor_driver, driver)) /** * struct visor_device - A device type for things "plugged" into the visorbus @@ -125,8 +119,8 @@ struct visor_driver { * activity. * @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. + * @visordriver_callback_lock: Used by the bus driver to lock when adding and + * removing devices. * @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 @@ -141,37 +135,42 @@ struct visor_driver { * 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 + * @partition_guid: 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 { struct visorchannel *visorchannel; - uuid_le channel_type_guid; + guid_t channel_type_guid; /* These fields are for private use by the bus driver only. */ struct device device; struct list_head list_all; struct timer_list timer; bool timer_active; bool being_removed; - struct mutex visordriver_callback_lock; + struct mutex visordriver_callback_lock; /* synchronize probe/remove */ bool pausing; bool resuming; u32 chipset_bus_no; u32 chipset_dev_no; struct visorchipset_state state; - uuid_le inst; + guid_t inst; u8 *name; struct controlvm_message_header *pending_msg_hdr; void *vbus_hdr_info; - uuid_le partition_uuid; + guid_t partition_guid; struct dentry *debugfs_dir; struct dentry *debugfs_client_bus_info; }; #define to_visor_device(x) container_of(x, struct visor_device, device) +int visor_check_channel(struct channel_header *ch, struct device *dev, + const guid_t *expected_uuid, char *chname, + u64 expected_min_bytes, u32 expected_version, + u64 expected_signature); + int visorbus_register_visor_driver(struct visor_driver *drv); void visorbus_unregister_visor_driver(struct visor_driver *drv); int visorbus_read_channel(struct visor_device *dev, @@ -183,7 +182,8 @@ int visorbus_write_channel(struct visor_device *dev, int visorbus_enable_channel_interrupts(struct visor_device *dev); void visorbus_disable_channel_interrupts(struct visor_device *dev); -/* Levels of severity for diagnostic events, in order from lowest severity to +/* + * Levels of severity for diagnostic events, in order from lowest severity to * highest (i.e. fatal errors are the most severe, and should always be logged, * but info events rarely need to be logged except during debugging). The * values DIAG_SEVERITY_ENUM_BEGIN and DIAG_SEVERITY_ENUM_END are not valid @@ -207,7 +207,7 @@ int visorchannel_signalremove(struct visorchannel *channel, u32 queue, int visorchannel_signalinsert(struct visorchannel *channel, u32 queue, void *msg); bool visorchannel_signalempty(struct visorchannel *channel, u32 queue); -uuid_le visorchannel_get_uuid(struct visorchannel *channel); +const guid_t *visorchannel_get_guid(struct visorchannel *channel); #define BUS_ROOT_DEVICE UINT_MAX struct visor_device *visorbus_get_device_by_id(u32 bus_no, u32 dev_no, |