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Diffstat (limited to 'drivers/staging/unisys/include/channel.h')
-rw-r--r--drivers/staging/unisys/include/channel.h221
1 files changed, 41 insertions, 180 deletions
diff --git a/drivers/staging/unisys/include/channel.h b/drivers/staging/unisys/include/channel.h
index db4e6b28755b..259ef6487959 100644
--- a/drivers/staging/unisys/include/channel.h
+++ b/drivers/staging/unisys/include/channel.h
@@ -75,28 +75,6 @@ enum channel_clientstate {
/* access channel anytime */
};
-static inline const u8 *
-ULTRA_CHANNELCLI_STRING(u32 state)
-{
- switch (state) {
- 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)
@@ -132,22 +110,6 @@ ULTRA_CHANNELCLI_STRING(u32 state)
/* 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
@@ -347,148 +309,6 @@ static inline int spar_check_channel_server(uuid_le typeuuid, char *name,
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)) {
- /* 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)) {
- /* 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)) {
- /* 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
@@ -569,4 +389,45 @@ unsigned int spar_signal_remove_all(struct channel_header *ch, u32 queue,
unsigned char spar_signalqueue_empty(struct channel_header __iomem *ch,
u32 queue);
+/*
+ * CHANNEL Guids
+ */
+
+/* {414815ed-c58c-11da-95a9-00e08161165f} */
+#define SPAR_VHBA_CHANNEL_PROTOCOL_UUID \
+ UUID_LE(0x414815ed, 0xc58c, 0x11da, \
+ 0x95, 0xa9, 0x0, 0xe0, 0x81, 0x61, 0x16, 0x5f)
+static const uuid_le spar_vhba_channel_protocol_uuid =
+ SPAR_VHBA_CHANNEL_PROTOCOL_UUID;
+#define SPAR_VHBA_CHANNEL_PROTOCOL_UUID_STR \
+ "414815ed-c58c-11da-95a9-00e08161165f"
+
+/* {8cd5994d-c58e-11da-95a9-00e08161165f} */
+#define SPAR_VNIC_CHANNEL_PROTOCOL_UUID \
+ UUID_LE(0x8cd5994d, 0xc58e, 0x11da, \
+ 0x95, 0xa9, 0x0, 0xe0, 0x81, 0x61, 0x16, 0x5f)
+static const uuid_le spar_vnic_channel_protocol_uuid =
+ SPAR_VNIC_CHANNEL_PROTOCOL_UUID;
+#define SPAR_VNIC_CHANNEL_PROTOCOL_UUID_STR \
+ "8cd5994d-c58e-11da-95a9-00e08161165f"
+
+/* {72120008-4AAB-11DC-8530-444553544200} */
+#define SPAR_SIOVM_UUID \
+ UUID_LE(0x72120008, 0x4AAB, 0x11DC, \
+ 0x85, 0x30, 0x44, 0x45, 0x53, 0x54, 0x42, 0x00)
+static const uuid_le spar_siovm_uuid = SPAR_SIOVM_UUID;
+
+/* {5b52c5ac-e5f5-4d42-8dff-429eaecd221f} */
+#define SPAR_CONTROLDIRECTOR_CHANNEL_PROTOCOL_UUID \
+ UUID_LE(0x5b52c5ac, 0xe5f5, 0x4d42, \
+ 0x8d, 0xff, 0x42, 0x9e, 0xae, 0xcd, 0x22, 0x1f)
+
+static const uuid_le spar_controldirector_channel_protocol_uuid =
+ SPAR_CONTROLDIRECTOR_CHANNEL_PROTOCOL_UUID;
+
+/* {b4e79625-aede-4eAA-9e11-D3eddcd4504c} */
+#define SPAR_DIAG_POOL_CHANNEL_PROTOCOL_UUID \
+ UUID_LE(0xb4e79625, 0xaede, 0x4eaa, \
+ 0x9e, 0x11, 0xd3, 0xed, 0xdc, 0xd4, 0x50, 0x4c)
+
#endif
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-05 21:17:35 +0000