+++ /dev/null
-/* Copyright (C) 2010 - 2013 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 __CHANNEL_H__
-#define __CHANNEL_H__
-
-#include <linux/types.h>
-#include <linux/io.h>
-#include <linux/uuid.h>
-
-/*
-* Whenever this file is changed a corresponding change must be made in
-* the Console/ServicePart/visordiag_early/supervisor_channel.h file
-* which is needed for Linux kernel compiles. These two files must be
-* in sync.
-*/
-
-/* define the following to prevent include nesting in kernel header
- * files of similar abbreviated content
- */
-#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 lengthof
-#define lengthof(TYPE, MEMBER) (sizeof(((TYPE *)0)->MEMBER))
-#endif
-#ifndef COVERQ
-#define COVERQ(v, d) (((v)+(d)-1) / (d))
-#endif
-#ifndef COVER
-#define COVER(v, d) ((d)*COVERQ(v, d))
-#endif
-
-#define ULTRA_CHANNEL_PROTOCOL_SIGNATURE SIGNATURE_32('E', 'C', 'N', 'L')
-
-enum channel_serverstate {
- CHANNELSRV_UNINITIALIZED = 0, /* channel is in an undefined state */
- CHANNELSRV_READY = 1 /* channel has been initialized by server */
-};
-
-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 */
-};
-
-static inline const u8 *
-ULTRA_CHANNELCLI_STRING(u32 v)
-{
- switch (v) {
- case CHANNELCLI_DETACHED:
- return (const u8 *)("DETACHED");
- case CHANNELCLI_DISABLED:
- return (const u8 *)("DISABLED");
- case CHANNELCLI_ATTACHING:
- return (const u8 *)("ATTACHING");
- case CHANNELCLI_ATTACHED:
- return (const u8 *)("ATTACHED");
- case CHANNELCLI_BUSY:
- return (const u8 *)("BUSY");
- case CHANNELCLI_OWNED:
- return (const u8 *)("OWNED");
- default:
- break;
- }
- return (const u8 *)("?");
-}
-
-#define SPAR_CHANNEL_SERVER_READY(ch) \
- (readl(&(ch)->srv_state) == CHANNELSRV_READY)
-
-#define ULTRA_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))
-
-#define SPAR_CHANNEL_CLIENT_CHK_TRANSITION(old, new, id, log, \
- file, line) \
- do { \
- if (!ULTRA_VALID_CHANNELCLI_TRANSITION(old, new)) \
- pr_info("%s Channel StateTransition INVALID! (%s) %s(%d)-->%s(%d) @%s:%d\n", \
- id, "CliState<x>", \
- ULTRA_CHANNELCLI_STRING(old), \
- old, \
- ULTRA_CHANNELCLI_STRING(new), \
- new, \
- pathname_last_n_nodes((u8 *)file, 4), \
- line); \
- } while (0)
-
-#define SPAR_CHANNEL_CLIENT_TRANSITION(ch, id, newstate, log) \
- do { \
- SPAR_CHANNEL_CLIENT_CHK_TRANSITION( \
- readl(&(((struct channel_header __iomem *)\
- (ch))->cli_state_os)), \
- newstate, id, log, __FILE__, __LINE__); \
- pr_info("%s Channel StateTransition (%s) %s(%d)-->%s(%d) @%s:%d\n", \
- id, "CliStateOS", \
- ULTRA_CHANNELCLI_STRING( \
- readl(&((struct channel_header __iomem *)\
- (ch))->cli_state_os)), \
- readl(&((struct channel_header __iomem *)\
- (ch))->cli_state_os), \
- ULTRA_CHANNELCLI_STRING(newstate), \
- newstate, \
- pathname_last_n_nodes(__FILE__, 4), __LINE__); \
- writel(newstate, &((struct channel_header __iomem *)\
- (ch))->cli_state_os); \
- mb(); /* required for channel synch */ \
- } while (0)
-
-/* Values for ULTRA_CHANNEL_PROTOCOL.CliErrorBoot: */
-/* throttling invalid boot channel statetransition error due to client
- * disabled */
-#define ULTRA_CLIERRORBOOT_THROTTLEMSG_DISABLED 0x01
-
-/* throttling invalid boot channel statetransition error due to client
- * not attached */
-#define ULTRA_CLIERRORBOOT_THROTTLEMSG_NOTATTACHED 0x02
-
-/* throttling invalid boot channel statetransition error due to busy channel */
-#define ULTRA_CLIERRORBOOT_THROTTLEMSG_BUSY 0x04
-
-/* Values for ULTRA_CHANNEL_PROTOCOL.CliErrorOS: */
-/* throttling invalid guest OS channel statetransition error due to
- * client disabled */
-#define ULTRA_CLIERROROS_THROTTLEMSG_DISABLED 0x01
-
-/* throttling invalid guest OS channel statetransition error due to
- * client not attached */
-#define ULTRA_CLIERROROS_THROTTLEMSG_NOTATTACHED 0x02
-
-/* throttling invalid guest OS channel statetransition error due to
- * busy channel */
-#define ULTRA_CLIERROROS_THROTTLEMSG_BUSY 0x04
-
-/* Values for ULTRA_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
-* ULTRA_VHBA_init_channel is called. All feature bits for all
-* channels should be defined here. The io channel feature bits are
-* defined right here */
-#define ULTRA_IO_DRIVER_ENABLES_INTS (0x1ULL << 1)
-#define ULTRA_IO_CHANNEL_IS_POLLING (0x1ULL << 3)
-#define ULTRA_IO_IOVM_IS_OK_WITH_DRIVER_DISABLING_INTS (0x1ULL << 4)
-#define ULTRA_IO_DRIVER_DISABLES_INTS (0x1ULL << 5)
-#define ULTRA_IO_DRIVER_SUPPORTS_ENHANCED_RCVBUF_CHECKING (0x1ULL << 6)
-
-#pragma pack(push, 1) /* both GCC and VC now allow this pragma */
-/* Common Channel Header */
-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 */
- u8 recover_channel;
-};
-
-#define ULTRA_CHANNEL_ENABLE_INTS (0x1ULL << 0)
-
-/* Subheader for the Signal Type variation of the Common Channel */
-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 # */
- /* 2nd cache line */
- u64 num_received; /* Total # of signals removed from this queue */
- u32 tail; /* Queue tail signal # (on separate
- * cache line) */
- u32 reserved1; /* Reserved field */
- u64 reserved2; /* Reserved field */
- 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 */
-};
-
-#pragma pack(pop)
-
-#define spar_signal_init(chan, QHDRFLD, QDATAFLD, QDATATYPE, ver, typ) \
- do { \
- memset(&chan->QHDRFLD, 0, sizeof(chan->QHDRFLD)); \
- chan->QHDRFLD.version = ver; \
- chan->QHDRFLD.chtype = typ; \
- chan->QHDRFLD.size = sizeof(chan->QDATAFLD); \
- chan->QHDRFLD.signal_size = sizeof(QDATATYPE); \
- chan->QHDRFLD.sig_base_offset = (u64)(chan->QDATAFLD)- \
- (u64)(&chan->QHDRFLD); \
- chan->QHDRFLD.max_slots = \
- sizeof(chan->QDATAFLD)/sizeof(QDATATYPE); \
- chan->QHDRFLD.max_signals = chan->QHDRFLD.max_slots-1; \
- } while (0)
-
-/* 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
-spar_check_channel_client(void __iomem *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) {
- uuid_le guid;
-
- memcpy_fromio(&guid,
- &((struct channel_header __iomem *)(ch))->chtype,
- sizeof(guid));
- /* caller wants us to verify type GUID */
- if (uuid_le_cmp(guid, expected_uuid) != 0) {
- pr_err("Channel mismatch on channel=%s(%pUL) field=type expected=%pUL actual=%pUL\n",
- chname, &expected_uuid,
- &expected_uuid, &guid);
- return 0;
- }
- }
- if (expected_min_bytes > 0) { /* caller wants us to verify
- * channel size */
- unsigned long long bytes =
- readq(&((struct channel_header __iomem *)
- (ch))->size);
- if (bytes < 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, bytes);
- return 0;
- }
- }
- if (expected_version > 0) { /* caller wants us to verify
- * channel version */
- unsigned long ver = readl(&((struct channel_header __iomem *)
- (ch))->version_id);
- if (ver != expected_version) {
- pr_err("Channel mismatch on channel=%s(%pUL) field=version expected=0x%-8.8lx actual=0x%-8.8lx\n",
- chname, &expected_uuid,
- (unsigned long)expected_version, ver);
- return 0;
- }
- }
- if (expected_signature > 0) { /* caller wants us to verify
- * channel signature */
- unsigned long long sig =
- readq(&((struct channel_header __iomem *)
- (ch))->signature);
- if (sig != expected_signature) {
- pr_err("Channel mismatch on channel=%s(%pUL) field=signature expected=0x%-8.8llx actual=0x%-8.8llx\n",
- chname, &expected_uuid,
- expected_signature, sig);
- return 0;
- }
- }
- return 1;
-}
-
-/* Generic function useful for validating any type of channel when it is about
- * to be initialized by the server of 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 spar_check_channel_server(uuid_le typeuuid, char *name,
- u64 expected_min_bytes,
- u64 actual_bytes)
-{
- if (expected_min_bytes > 0) /* caller wants us to verify
- * channel size */
- if (actual_bytes < expected_min_bytes) {
- pr_err("Channel mismatch on channel=%s(%pUL) field=size expected=0x%-8.8llx actual=0x%-8.8llx\n",
- name, &typeuuid, expected_min_bytes,
- actual_bytes);
- return 0;
- }
- return 1;
-}
-
-/* Given a file pathname <s> (with '/' or '\' separating directory nodes),
- * returns a pointer to the beginning of a node within that pathname such
- * that the number of nodes from that pointer to the end of the string is
- * NOT more than <n>. Note that if the pathname has less than <n> nodes
- * in it, the return pointer will be to the beginning of the string.
- */
-static inline u8 *
-pathname_last_n_nodes(u8 *s, unsigned int n)
-{
- u8 *p = s;
- unsigned int node_count = 0;
-
- while (*p != '\0') {
- if ((*p == '/') || (*p == '\\'))
- node_count++;
- p++;
- }
- if (node_count <= n)
- return s;
- while (n > 0) {
- p--;
- if (p == s)
- break; /* should never happen, unless someone
- * is changing the string while we are
- * looking at it!! */
- if ((*p == '/') || (*p == '\\'))
- n--;
- }
- return p + 1;
-}
-
-static inline int
-spar_channel_client_acquire_os(void __iomem *ch, u8 *id)
-{
- struct channel_header __iomem *hdr = ch;
-
- if (readl(&hdr->cli_state_os) == CHANNELCLI_DISABLED) {
- if ((readb(&hdr->cli_error_os)
- & ULTRA_CLIERROROS_THROTTLEMSG_DISABLED) == 0) {
- /* we are NOT throttling this message */
- writeb(readb(&hdr->cli_error_os) |
- ULTRA_CLIERROROS_THROTTLEMSG_DISABLED,
- &hdr->cli_error_os);
- /* throttle until acquire successful */
-
- pr_info("%s Channel StateTransition INVALID! - acquire failed because OS client DISABLED\n",
- id);
- }
- return 0;
- }
- if ((readl(&hdr->cli_state_os) != CHANNELCLI_OWNED) &&
- (readl(&hdr->cli_state_boot) == CHANNELCLI_DISABLED)) {
- /* Our competitor is DISABLED, so we can transition to OWNED */
- pr_info("%s Channel StateTransition (%s) %s(%d)-->%s(%d)\n",
- id, "cli_state_os",
- ULTRA_CHANNELCLI_STRING(readl(&hdr->cli_state_os)),
- readl(&hdr->cli_state_os),
- ULTRA_CHANNELCLI_STRING(CHANNELCLI_OWNED),
- CHANNELCLI_OWNED);
- writel(CHANNELCLI_OWNED, &hdr->cli_state_os);
- mb(); /* required for channel synch */
- }
- if (readl(&hdr->cli_state_os) == CHANNELCLI_OWNED) {
- if (readb(&hdr->cli_error_os) != 0) {
- /* 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);
- }
- return 1;
- }
-
- /* We have to do it the "hard way". We transition to BUSY,
- * and can use the channel iff our competitor has not also
- * transitioned to BUSY. */
- if (readl(&hdr->cli_state_os) != CHANNELCLI_ATTACHED) {
- if ((readb(&hdr->cli_error_os)
- & ULTRA_CLIERROROS_THROTTLEMSG_NOTATTACHED) == 0) {
- /* we are NOT throttling this message */
- writeb(readb(&hdr->cli_error_os) |
- ULTRA_CLIERROROS_THROTTLEMSG_NOTATTACHED,
- &hdr->cli_error_os);
- /* throttle until acquire successful */
- pr_info("%s Channel StateTransition INVALID! - acquire failed because OS client NOT ATTACHED (state=%s(%d))\n",
- id, ULTRA_CHANNELCLI_STRING(
- readl(&hdr->cli_state_os)),
- readl(&hdr->cli_state_os));
- }
- return 0;
- }
- writel(CHANNELCLI_BUSY, &hdr->cli_state_os);
- mb(); /* required for channel synch */
- if (readl(&hdr->cli_state_boot) == CHANNELCLI_BUSY) {
- if ((readb(&hdr->cli_error_os)
- & ULTRA_CLIERROROS_THROTTLEMSG_BUSY) == 0) {
- /* we are NOT throttling this message */
- writeb(readb(&hdr->cli_error_os) |
- ULTRA_CLIERROROS_THROTTLEMSG_BUSY,
- &hdr->cli_error_os);
- /* throttle until acquire successful */
- pr_info("%s Channel StateTransition failed - host OS acquire failed because boot BUSY\n",
- id);
- }
- /* reset busy */
- writel(CHANNELCLI_ATTACHED, &hdr->cli_state_os);
- mb(); /* required for channel synch */
- return 0;
- }
- if (readb(&hdr->cli_error_os) != 0) {
- /* 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);
- }
- return 1;
-}
-
-static inline void
-spar_channel_client_release_os(void __iomem *ch, u8 *id)
-{
- struct channel_header __iomem *hdr = ch;
-
- if (readb(&hdr->cli_error_os) != 0) {
- /* 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);
- }
- if (readl(&hdr->cli_state_os) == CHANNELCLI_OWNED)
- return;
- if (readl(&hdr->cli_state_os) != CHANNELCLI_BUSY) {
- pr_info("%s Channel StateTransition INVALID! - release failed because OS client NOT BUSY (state=%s(%d))\n",
- id, ULTRA_CHANNELCLI_STRING(
- readl(&hdr->cli_state_os)),
- readl(&hdr->cli_state_os));
- /* return; */
- }
- writel(CHANNELCLI_ATTACHED, &hdr->cli_state_os); /* release busy */
-}
-
-/*
-* Routine Description:
-* Tries to insert the prebuilt signal pointed to by pSignal into the nth
-* Queue of the Channel pointed to by pChannel
-*
-* Parameters:
-* pChannel: (IN) points to the IO Channel
-* Queue: (IN) nth Queue of the IO Channel
-* pSignal: (IN) pointer to the signal
-*
-* Assumptions:
-* - pChannel, Queue and pSignal are valid.
-* - If insertion fails due to a full queue, the caller will determine the
-* retry policy (e.g. wait & try again, report an error, etc.).
-*
-* Return value: 1 if the insertion succeeds, 0 if the queue was
-* full.
-*/
-
-unsigned char spar_signal_insert(struct channel_header __iomem *ch, u32 queue,
- void *sig);
-
-/*
-* Routine Description:
-* Removes one signal from Channel pChannel's nth Queue at the
-* time of the call and copies it into the memory pointed to by
-* pSignal.
-*
-* Parameters:
-* pChannel: (IN) points to the IO Channel
-* Queue: (IN) nth Queue of the IO Channel
-* pSignal: (IN) pointer to where the signals are to be copied
-*
-* Assumptions:
-* - pChannel and Queue are valid.
-* - pSignal points to a memory area large enough to hold queue's SignalSize
-*
-* Return value: 1 if the removal succeeds, 0 if the queue was
-* empty.
-*/
-
-unsigned char spar_signal_remove(struct channel_header __iomem *ch, u32 queue,
- void *sig);
-
-/*
-* Routine Description:
-* Removes all signals present in Channel pChannel's nth Queue at the
-* time of the call and copies them into the memory pointed to by
-* pSignal. Returns the # of signals copied as the value of the routine.
-*
-* Parameters:
-* pChannel: (IN) points to the IO Channel
-* Queue: (IN) nth Queue of the IO Channel
-* pSignal: (IN) pointer to where the signals are to be copied
-*
-* Assumptions:
-* - pChannel and Queue are valid.
-* - pSignal points to a memory area large enough to hold Queue's MaxSignals
-* # of signals, each of which is Queue's SignalSize.
-*
-* Return value:
-* # of signals copied.
-*/
-unsigned int spar_signal_remove_all(struct channel_header *ch, u32 queue,
- void *sig);
-
-/*
-* Routine Description:
-* Determine whether a signal queue is empty.
-*
-* Parameters:
-* pChannel: (IN) points to the IO Channel
-* Queue: (IN) nth Queue of the IO Channel
-*
-* Return value:
-* 1 if the signal queue is empty, 0 otherwise.
-*/
-unsigned char spar_signalqueue_empty(struct channel_header __iomem *ch,
- u32 queue);
-
-#endif
Code Review / kvmfornfv.git / blobdiff