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authorCorey Minyard <cminyard@mvista.com>2008-04-29 01:01:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 08:06:15 -0700
commitc305e3d38e5f54a48a4618496cdc1ada970ebf68 (patch)
treee6c8a145dec75f27f87bd6759cd0504a104f4f0f /drivers
parentc70d749986f6f1d4e2bb008bfc0c5fc22ec3fc64 (diff)
IPMI: Style fixes in the system interface code
Lots of style fixes for the IPMI system interface driver. No functional changes. Basically fixes everything reported by checkpatch and fixes the comment style. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: Rocky Craig <rocky.craig@hp.com> Cc: Hannes Schulz <schulz@schwaar.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/char/ipmi/ipmi_bt_sm.c153
-rw-r--r--drivers/char/ipmi/ipmi_kcs_sm.c153
-rw-r--r--drivers/char/ipmi/ipmi_si_intf.c466
-rw-r--r--drivers/char/ipmi/ipmi_si_sm.h89
-rw-r--r--drivers/char/ipmi/ipmi_smic_sm.c149
5 files changed, 574 insertions, 436 deletions
diff --git a/drivers/char/ipmi/ipmi_bt_sm.c b/drivers/char/ipmi/ipmi_bt_sm.c
index e736119b649..7b98c067190 100644
--- a/drivers/char/ipmi/ipmi_bt_sm.c
+++ b/drivers/char/ipmi/ipmi_bt_sm.c
@@ -37,26 +37,32 @@
#define BT_DEBUG_ENABLE 1 /* Generic messages */
#define BT_DEBUG_MSG 2 /* Prints all request/response buffers */
#define BT_DEBUG_STATES 4 /* Verbose look at state changes */
-/* BT_DEBUG_OFF must be zero to correspond to the default uninitialized
- value */
+/*
+ * BT_DEBUG_OFF must be zero to correspond to the default uninitialized
+ * value
+ */
static int bt_debug; /* 0 == BT_DEBUG_OFF */
module_param(bt_debug, int, 0644);
MODULE_PARM_DESC(bt_debug, "debug bitmask, 1=enable, 2=messages, 4=states");
-/* Typical "Get BT Capabilities" values are 2-3 retries, 5-10 seconds,
- and 64 byte buffers. However, one HP implementation wants 255 bytes of
- buffer (with a documented message of 160 bytes) so go for the max.
- Since the Open IPMI architecture is single-message oriented at this
- stage, the queue depth of BT is of no concern. */
+/*
+ * Typical "Get BT Capabilities" values are 2-3 retries, 5-10 seconds,
+ * and 64 byte buffers. However, one HP implementation wants 255 bytes of
+ * buffer (with a documented message of 160 bytes) so go for the max.
+ * Since the Open IPMI architecture is single-message oriented at this
+ * stage, the queue depth of BT is of no concern.
+ */
#define BT_NORMAL_TIMEOUT 5 /* seconds */
#define BT_NORMAL_RETRY_LIMIT 2
#define BT_RESET_DELAY 6 /* seconds after warm reset */
-/* States are written in chronological order and usually cover
- multiple rows of the state table discussion in the IPMI spec. */
+/*
+ * States are written in chronological order and usually cover
+ * multiple rows of the state table discussion in the IPMI spec.
+ */
enum bt_states {
BT_STATE_IDLE = 0, /* Order is critical in this list */
@@ -76,10 +82,12 @@ enum bt_states {
BT_STATE_LONG_BUSY /* BT doesn't get hosed :-) */
};
-/* Macros seen at the end of state "case" blocks. They help with legibility
- and debugging. */
+/*
+ * Macros seen at the end of state "case" blocks. They help with legibility
+ * and debugging.
+ */
-#define BT_STATE_CHANGE(X,Y) { bt->state = X; return Y; }
+#define BT_STATE_CHANGE(X, Y) { bt->state = X; return Y; }
#define BT_SI_SM_RETURN(Y) { last_printed = BT_STATE_PRINTME; return Y; }
@@ -110,11 +118,13 @@ struct si_sm_data {
#define BT_H_BUSY 0x40
#define BT_B_BUSY 0x80
-/* Some bits are toggled on each write: write once to set it, once
- more to clear it; writing a zero does nothing. To absolutely
- clear it, check its state and write if set. This avoids the "get
- current then use as mask" scheme to modify one bit. Note that the
- variable "bt" is hardcoded into these macros. */
+/*
+ * Some bits are toggled on each write: write once to set it, once
+ * more to clear it; writing a zero does nothing. To absolutely
+ * clear it, check its state and write if set. This avoids the "get
+ * current then use as mask" scheme to modify one bit. Note that the
+ * variable "bt" is hardcoded into these macros.
+ */
#define BT_STATUS bt->io->inputb(bt->io, 0)
#define BT_CONTROL(x) bt->io->outputb(bt->io, 0, x)
@@ -125,8 +135,10 @@ struct si_sm_data {
#define BT_INTMASK_R bt->io->inputb(bt->io, 2)
#define BT_INTMASK_W(x) bt->io->outputb(bt->io, 2, x)
-/* Convenience routines for debugging. These are not multi-open safe!
- Note the macros have hardcoded variables in them. */
+/*
+ * Convenience routines for debugging. These are not multi-open safe!
+ * Note the macros have hardcoded variables in them.
+ */
static char *state2txt(unsigned char state)
{
@@ -182,7 +194,8 @@ static char *status2txt(unsigned char status)
static unsigned int bt_init_data(struct si_sm_data *bt, struct si_sm_io *io)
{
memset(bt, 0, sizeof(struct si_sm_data));
- if (bt->io != io) { /* external: one-time only things */
+ if (bt->io != io) {
+ /* external: one-time only things */
bt->io = io;
bt->seq = 0;
}
@@ -229,7 +242,7 @@ static int bt_start_transaction(struct si_sm_data *bt,
printk(KERN_WARNING "BT: +++++++++++++++++ New command\n");
printk(KERN_WARNING "BT: NetFn/LUN CMD [%d data]:", size - 2);
for (i = 0; i < size; i ++)
- printk (" %02x", data[i]);
+ printk(" %02x", data[i]);
printk("\n");
}
bt->write_data[0] = size + 1; /* all data plus seq byte */
@@ -246,8 +259,10 @@ static int bt_start_transaction(struct si_sm_data *bt,
return 0;
}
-/* After the upper state machine has been told SI_SM_TRANSACTION_COMPLETE
- it calls this. Strip out the length and seq bytes. */
+/*
+ * After the upper state machine has been told SI_SM_TRANSACTION_COMPLETE
+ * it calls this. Strip out the length and seq bytes.
+ */
static int bt_get_result(struct si_sm_data *bt,
unsigned char *data,
@@ -269,10 +284,10 @@ static int bt_get_result(struct si_sm_data *bt,
memcpy(data + 2, bt->read_data + 4, msg_len - 2);
if (bt_debug & BT_DEBUG_MSG) {
- printk (KERN_WARNING "BT: result %d bytes:", msg_len);
+ printk(KERN_WARNING "BT: result %d bytes:", msg_len);
for (i = 0; i < msg_len; i++)
printk(" %02x", data[i]);
- printk ("\n");
+ printk("\n");
}
return msg_len;
}
@@ -292,8 +307,10 @@ static void reset_flags(struct si_sm_data *bt)
BT_INTMASK_W(BT_BMC_HWRST);
}
-/* Get rid of an unwanted/stale response. This should only be needed for
- BMCs that support multiple outstanding requests. */
+/*
+ * Get rid of an unwanted/stale response. This should only be needed for
+ * BMCs that support multiple outstanding requests.
+ */
static void drain_BMC2HOST(struct si_sm_data *bt)
{
@@ -326,8 +343,8 @@ static inline void write_all_bytes(struct si_sm_data *bt)
printk(KERN_WARNING "BT: write %d bytes seq=0x%02X",
bt->write_count, bt->seq);
for (i = 0; i < bt->write_count; i++)
- printk (" %02x", bt->write_data[i]);
- printk ("\n");
+ printk(" %02x", bt->write_data[i]);
+ printk("\n");
}
for (i = 0; i < bt->write_count; i++)
HOST2BMC(bt->write_data[i]);
@@ -337,8 +354,10 @@ static inline int read_all_bytes(struct si_sm_data *bt)
{
unsigned char i;
- /* length is "framing info", minimum = 4: NetFn, Seq, Cmd, cCode.
- Keep layout of first four bytes aligned with write_data[] */
+ /*
+ * length is "framing info", minimum = 4: NetFn, Seq, Cmd, cCode.
+ * Keep layout of first four bytes aligned with write_data[]
+ */
bt->read_data[0] = BMC2HOST;
bt->read_count = bt->read_data[0];
@@ -362,8 +381,8 @@ static inline int read_all_bytes(struct si_sm_data *bt)
if (max > 16)
max = 16;
for (i = 0; i < max; i++)
- printk (" %02x", bt->read_data[i]);
- printk ("%s\n", bt->read_count == max ? "" : " ...");
+ printk(KERN_CONT " %02x", bt->read_data[i]);
+ printk(KERN_CONT "%s\n", bt->read_count == max ? "" : " ...");
}
/* per the spec, the (NetFn[1], Seq[2], Cmd[3]) tuples must match */
@@ -402,8 +421,10 @@ static enum si_sm_result error_recovery(struct si_sm_data *bt,
printk(KERN_WARNING "IPMI BT: %s in %s %s ", /* open-ended line */
reason, STATE2TXT, STATUS2TXT);
- /* Per the IPMI spec, retries are based on the sequence number
- known only to this module, so manage a restart here. */
+ /*
+ * Per the IPMI spec, retries are based on the sequence number
+ * known only to this module, so manage a restart here.
+ */
(bt->error_retries)++;
if (bt->error_retries < bt->BT_CAP_retries) {
printk("%d retries left\n",
@@ -412,8 +433,8 @@ static enum si_sm_result error_recovery(struct si_sm_data *bt,
return SI_SM_CALL_WITHOUT_DELAY;
}
- printk("failed %d retries, sending error response\n",
- bt->BT_CAP_retries);
+ printk(KERN_WARNING "failed %d retries, sending error response\n",
+ bt->BT_CAP_retries);
if (!bt->nonzero_status)
printk(KERN_ERR "IPMI BT: stuck, try power cycle\n");
@@ -424,8 +445,10 @@ static enum si_sm_result error_recovery(struct si_sm_data *bt,
return SI_SM_CALL_WITHOUT_DELAY;
}
- /* Concoct a useful error message, set up the next state, and
- be done with this sequence. */
+ /*
+ * Concoct a useful error message, set up the next state, and
+ * be done with this sequence.
+ */
bt->state = BT_STATE_IDLE;
switch (cCode) {
@@ -461,10 +484,12 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
last_printed = bt->state;
}
- /* Commands that time out may still (eventually) provide a response.
- This stale response will get in the way of a new response so remove
- it if possible (hopefully during IDLE). Even if it comes up later
- it will be rejected by its (now-forgotten) seq number. */
+ /*
+ * Commands that time out may still (eventually) provide a response.
+ * This stale response will get in the way of a new response so remove
+ * it if possible (hopefully during IDLE). Even if it comes up later
+ * it will be rejected by its (now-forgotten) seq number.
+ */
if ((bt->state < BT_STATE_WRITE_BYTES) && (status & BT_B2H_ATN)) {
drain_BMC2HOST(bt);
@@ -472,7 +497,8 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
}
if ((bt->state != BT_STATE_IDLE) &&
- (bt->state < BT_STATE_PRINTME)) { /* check timeout */
+ (bt->state < BT_STATE_PRINTME)) {
+ /* check timeout */
bt->timeout -= time;
if ((bt->timeout < 0) && (bt->state < BT_STATE_RESET1))
return error_recovery(bt,
@@ -482,8 +508,10 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
switch (bt->state) {
- /* Idle state first checks for asynchronous messages from another
- channel, then does some opportunistic housekeeping. */
+ /*
+ * Idle state first checks for asynchronous messages from another
+ * channel, then does some opportunistic housekeeping.
+ */
case BT_STATE_IDLE:
if (status & BT_SMS_ATN) {
@@ -531,16 +559,19 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
BT_SI_SM_RETURN(SI_SM_CALL_WITH_DELAY);
BT_CONTROL(BT_H_BUSY); /* set */
- /* Uncached, ordered writes should just proceeed serially but
- some BMCs don't clear B2H_ATN with one hit. Fast-path a
- workaround without too much penalty to the general case. */
+ /*
+ * Uncached, ordered writes should just proceeed serially but
+ * some BMCs don't clear B2H_ATN with one hit. Fast-path a
+ * workaround without too much penalty to the general case.
+ */
BT_CONTROL(BT_B2H_ATN); /* clear it to ACK the BMC */
BT_STATE_CHANGE(BT_STATE_CLEAR_B2H,
SI_SM_CALL_WITHOUT_DELAY);
case BT_STATE_CLEAR_B2H:
- if (status & BT_B2H_ATN) { /* keep hitting it */
+ if (status & BT_B2H_ATN) {
+ /* keep hitting it */
BT_CONTROL(BT_B2H_ATN);
BT_SI_SM_RETURN(SI_SM_CALL_WITH_DELAY);
}
@@ -548,7 +579,8 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
SI_SM_CALL_WITHOUT_DELAY);
case BT_STATE_READ_BYTES:
- if (!(status & BT_H_BUSY)) /* check in case of retry */
+ if (!(status & BT_H_BUSY))
+ /* check in case of retry */
BT_CONTROL(BT_H_BUSY);
BT_CONTROL(BT_CLR_RD_PTR); /* start of BMC2HOST buffer */
i = read_all_bytes(bt); /* true == packet seq match */
@@ -599,8 +631,10 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
BT_STATE_CHANGE(BT_STATE_XACTION_START,
SI_SM_CALL_WITH_DELAY);
- /* Get BT Capabilities, using timing of upper level state machine.
- Set outreqs to prevent infinite loop on timeout. */
+ /*
+ * Get BT Capabilities, using timing of upper level state machine.
+ * Set outreqs to prevent infinite loop on timeout.
+ */
case BT_STATE_CAPABILITIES_BEGIN:
bt->BT_CAP_outreqs = 1;
{
@@ -638,10 +672,12 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
static int bt_detect(struct si_sm_data *bt)
{
- /* It's impossible for the BT status and interrupt registers to be
- all 1's, (assuming a properly functioning, self-initialized BMC)
- but that's what you get from reading a bogus address, so we
- test that first. The calling routine uses negative logic. */
+ /*
+ * It's impossible for the BT status and interrupt registers to be
+ * all 1's, (assuming a properly functioning, self-initialized BMC)
+ * but that's what you get from reading a bogus address, so we
+ * test that first. The calling routine uses negative logic.
+ */
if ((BT_STATUS == 0xFF) && (BT_INTMASK_R == 0xFF))
return 1;
@@ -658,8 +694,7 @@ static int bt_size(void)
return sizeof(struct si_sm_data);
}
-struct si_sm_handlers bt_smi_handlers =
-{
+struct si_sm_handlers bt_smi_handlers = {
.init_data = bt_init_data,
.start_transaction = bt_start_transaction,
.get_result = bt_get_result,
diff --git a/drivers/char/ipmi/ipmi_kcs_sm.c b/drivers/char/ipmi/ipmi_kcs_sm.c
index c1b8228cb7b..80704875794 100644
--- a/drivers/char/ipmi/ipmi_kcs_sm.c
+++ b/drivers/char/ipmi/ipmi_kcs_sm.c
@@ -60,37 +60,58 @@ MODULE_PARM_DESC(kcs_debug, "debug bitmask, 1=enable, 2=messages, 4=states");
/* The states the KCS driver may be in. */
enum kcs_states {
- KCS_IDLE, /* The KCS interface is currently
- doing nothing. */
- KCS_START_OP, /* We are starting an operation. The
- data is in the output buffer, but
- nothing has been done to the
- interface yet. This was added to
- the state machine in the spec to
- wait for the initial IBF. */
- KCS_WAIT_WRITE_START, /* We have written a write cmd to the
- interface. */
- KCS_WAIT_WRITE, /* We are writing bytes to the
- interface. */
- KCS_WAIT_WRITE_END, /* We have written the write end cmd
- to the interface, and still need to
- write the last byte. */
- KCS_WAIT_READ, /* We are waiting to read data from
- the interface. */
- KCS_ERROR0, /* State to transition to the error
- handler, this was added to the
- state machine in the spec to be
- sure IBF was there. */
- KCS_ERROR1, /* First stage error handler, wait for
- the interface to respond. */
- KCS_ERROR2, /* The abort cmd has been written,
- wait for the interface to
- respond. */
- KCS_ERROR3, /* We wrote some data to the
- interface, wait for it to switch to
- read mode. */
- KCS_HOSED /* The hardware failed to follow the
- state machine. */
+ /* The KCS interface is currently doing nothing. */
+ KCS_IDLE,
+
+ /*
+ * We are starting an operation. The data is in the output
+ * buffer, but nothing has been done to the interface yet. This
+ * was added to the state machine in the spec to wait for the
+ * initial IBF.
+ */
+ KCS_START_OP,
+
+ /* We have written a write cmd to the interface. */
+ KCS_WAIT_WRITE_START,
+
+ /* We are writing bytes to the interface. */
+ KCS_WAIT_WRITE,
+
+ /*
+ * We have written the write end cmd to the interface, and
+ * still need to write the last byte.
+ */
+ KCS_WAIT_WRITE_END,
+
+ /* We are waiting to read data from the interface. */
+ KCS_WAIT_READ,
+
+ /*
+ * State to transition to the error handler, this was added to
+ * the state machine in the spec to be sure IBF was there.
+ */
+ KCS_ERROR0,
+
+ /*
+ * First stage error handler, wait for the interface to
+ * respond.
+ */
+ KCS_ERROR1,
+
+ /*
+ * The abort cmd has been written, wait for the interface to
+ * respond.
+ */
+ KCS_ERROR2,
+
+ /*
+ * We wrote some data to the interface, wait for it to switch
+ * to read mode.
+ */
+ KCS_ERROR3,
+
+ /* The hardware failed to follow the state machine. */
+ KCS_HOSED
};
#define MAX_KCS_READ_SIZE IPMI_MAX_MSG_LENGTH
@@ -102,8 +123,7 @@ enum kcs_states {
#define MAX_ERROR_RETRIES 10
#define ERROR0_OBF_WAIT_JIFFIES (2*HZ)
-struct si_sm_data
-{
+struct si_sm_data {
enum kcs_states state;
struct si_sm_io *io;
unsigned char write_data[MAX_KCS_WRITE_SIZE];
@@ -187,7 +207,8 @@ static inline void start_error_recovery(struct si_sm_data *kcs, char *reason)
(kcs->error_retries)++;
if (kcs->error_retries > MAX_ERROR_RETRIES) {
if (kcs_debug & KCS_DEBUG_ENABLE)
- printk(KERN_DEBUG "ipmi_kcs_sm: kcs hosed: %s\n", reason);
+ printk(KERN_DEBUG "ipmi_kcs_sm: kcs hosed: %s\n",
+ reason);
kcs->state = KCS_HOSED;
} else {
kcs->error0_timeout = jiffies + ERROR0_OBF_WAIT_JIFFIES;
@@ -271,10 +292,9 @@ static int start_kcs_transaction(struct si_sm_data *kcs, unsigned char *data,
if (kcs_debug & KCS_DEBUG_MSG) {
printk(KERN_DEBUG "start_kcs_transaction -");
- for (i = 0; i < size; i ++) {
+ for (i = 0; i < size; i++)
printk(" %02x", (unsigned char) (data [i]));
- }
- printk ("\n");
+ printk("\n");
}
kcs->error_retries = 0;
memcpy(kcs->write_data, data, size);
@@ -305,9 +325,11 @@ static int get_kcs_result(struct si_sm_data *kcs, unsigned char *data,
kcs->read_pos = 3;
}
if (kcs->truncated) {
- /* Report a truncated error. We might overwrite
- another error, but that's too bad, the user needs
- to know it was truncated. */
+ /*
+ * Report a truncated error. We might overwrite
+ * another error, but that's too bad, the user needs
+ * to know it was truncated.
+ */
data[2] = IPMI_ERR_MSG_TRUNCATED;
kcs->truncated = 0;
}
@@ -315,9 +337,11 @@ static int get_kcs_result(struct si_sm_data *kcs, unsigned char *data,
return kcs->read_pos;
}
-/* This implements the state machine defined in the IPMI manual, see
- that for details on how this works. Divide that flowchart into
- sections delimited by "Wait for IBF" and this will become clear. */
+/*
+ * This implements the state machine defined in the IPMI manual, see
+ * that for details on how this works. Divide that flowchart into
+ * sections delimited by "Wait for IBF" and this will become clear.
+ */
static enum si_sm_result kcs_event(struct si_sm_data *kcs, long time)
{
unsigned char status;
@@ -388,11 +412,12 @@ static enum si_sm_result kcs_event(struct si_sm_data *kcs, long time)
write_next_byte(kcs);
}
break;
-
+
case KCS_WAIT_WRITE_END:
if (state != KCS_WRITE_STATE) {
start_error_recovery(kcs,
- "Not in write state for write end");
+ "Not in write state"
+ " for write end");
break;
}
clear_obf(kcs, status);
@@ -413,13 +438,15 @@ static enum si_sm_result kcs_event(struct si_sm_data *kcs, long time)
return SI_SM_CALL_WITH_DELAY;
read_next_byte(kcs);
} else {
- /* We don't implement this exactly like the state
- machine in the spec. Some broken hardware
- does not write the final dummy byte to the
- read register. Thus obf will never go high
- here. We just go straight to idle, and we
- handle clearing out obf in idle state if it
- happens to come in. */
+ /*
+ * We don't implement this exactly like the state
+ * machine in the spec. Some broken hardware
+ * does not write the final dummy byte to the
+ * read register. Thus obf will never go high
+ * here. We just go straight to idle, and we
+ * handle clearing out obf in idle state if it
+ * happens to come in.
+ */
clear_obf(kcs, status);
kcs->orig_write_count = 0;
kcs->state = KCS_IDLE;
@@ -430,7 +457,8 @@ static enum si_sm_result kcs_event(struct si_sm_data *kcs, long time)
case KCS_ERROR0:
clear_obf(kcs, status);
status = read_status(kcs);
- if (GET_STATUS_OBF(status)) /* controller isn't responding */
+ if (GET_STATUS_OBF(status))
+ /* controller isn't responding */
if (time_before(jiffies, kcs->error0_timeout))
return SI_SM_CALL_WITH_TICK_DELAY;
write_cmd(kcs, KCS_GET_STATUS_ABORT);
@@ -442,7 +470,7 @@ static enum si_sm_result kcs_event(struct si_sm_data *kcs, long time)
write_data(kcs, 0);
kcs->state = KCS_ERROR2;
break;
-
+
case KCS_ERROR2:
if (state != KCS_READ_STATE) {
start_error_recovery(kcs,
@@ -456,7 +484,7 @@ static enum si_sm_result kcs_event(struct si_sm_data *kcs, long time)
write_data(kcs, KCS_READ_BYTE);
kcs->state = KCS_ERROR3;
break;
-
+
case KCS_ERROR3:
if (state != KCS_IDLE_STATE) {
start_error_recovery(kcs,
@@ -475,7 +503,7 @@ static enum si_sm_result kcs_event(struct si_sm_data *kcs, long time)
return SI_SM_TRANSACTION_COMPLETE;
}
break;
-
+
case KCS_HOSED:
break;
}
@@ -495,10 +523,12 @@ static int kcs_size(void)
static int kcs_detect(struct si_sm_data *kcs)
{
- /* It's impossible for the KCS status register to be all 1's,
- (assuming a properly functioning, self-initialized BMC)
- but that's what you get from reading a bogus address, so we
- test that first. */
+ /*
+ * It's impossible for the KCS status register to be all 1's,
+ * (assuming a properly functioning, self-initialized BMC)
+ * but that's what you get from reading a bogus address, so we
+ * test that first.
+ */
if (read_status(kcs) == 0xff)
return 1;
@@ -509,8 +539,7 @@ static void kcs_cleanup(struct si_sm_data *kcs)
{
}
-struct si_sm_handlers kcs_smi_handlers =
-{
+struct si_sm_handlers kcs_smi_handlers = {
.init_data = init_kcs_data,
.start_transaction = start_kcs_transaction,
.get_result = get_kcs_result,
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index ba7e75b731c..97b6225c070 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -80,7 +80,7 @@
#define SI_USEC_PER_JIFFY (1000000/HZ)
#define SI_TIMEOUT_JIFFIES (SI_TIMEOUT_TIME_USEC/SI_USEC_PER_JIFFY)
#define SI_SHORT_TIMEOUT_USEC 250 /* .25ms when the SM request a
- short timeout */
+ short timeout */
/* Bit for BMC global enables. */
#define IPMI_BMC_RCV_MSG_INTR 0x01
@@ -114,8 +114,7 @@ static char *si_to_str[] = { "kcs", "smic", "bt" };
#define DEVICE_NAME "ipmi_si"
-static struct device_driver ipmi_driver =
-{
+static struct device_driver ipmi_driver = {
.name = DEVICE_NAME,
.bus = &platform_bus_type
};
@@ -169,8 +168,7 @@ enum si_stat_indexes {
SI_NUM_STATS
};
-struct smi_info
-{
+struct smi_info {
int intf_num;
ipmi_smi_t intf;
struct si_sm_data *si_sm;
@@ -183,8 +181,10 @@ struct smi_info
struct ipmi_smi_msg *curr_msg;
enum si_intf_state si_state;
- /* Used to handle the various types of I/O that can occur with
- IPMI */
+ /*
+ * Used to handle the various types of I/O that can occur with
+ * IPMI
+ */
struct si_sm_io io;
int (*io_setup)(struct smi_info *info);
void (*io_cleanup)(struct smi_info *info);
@@ -195,15 +195,18 @@ struct smi_info
void (*addr_source_cleanup)(struct smi_info *info);
void *addr_source_data;
- /* Per-OEM handler, called from handle_flags().
- Returns 1 when handle_flags() needs to be re-run
- or 0 indicating it set si_state itself.
- */
+ /*
+ * Per-OEM handler, called from handle_flags(). Returns 1
+ * when handle_flags() needs to be re-run or 0 indicating it
+ * set si_state itself.
+ */
int (*oem_data_avail_handler)(struct smi_info *smi_info);
- /* Flags from the last GET_MSG_FLAGS command, used when an ATTN
- is set to hold the flags until we are done handling everything
- from the flags. */
+ /*
+ * Flags from the last GET_MSG_FLAGS command, used when an ATTN
+ * is set to hold the flags until we are done handling everything
+ * from the flags.
+ */
#define RECEIVE_MSG_AVAIL 0x01
#define EVENT_MSG_BUFFER_FULL 0x02
#define WDT_PRE_TIMEOUT_INT 0x08
@@ -211,25 +214,31 @@ struct smi_info
#define OEM1_DATA_AVAIL 0x40
#define OEM2_DATA_AVAIL 0x80
#define OEM_DATA_AVAIL (OEM0_DATA_AVAIL | \
- OEM1_DATA_AVAIL | \
- OEM2_DATA_AVAIL)
+ OEM1_DATA_AVAIL | \
+ OEM2_DATA_AVAIL)
unsigned char msg_flags;
- /* If set to true, this will request events the next time the
- state machine is idle. */
+ /*
+ * If set to true, this will request events the next time the
+ * state machine is idle.
+ */
atomic_t req_events;
- /* If true, run the state machine to completion on every send
- call. Generally used after a panic to make sure stuff goes
- out. */
+ /*
+ * If true, run the state machine to completion on every send
+ * call. Generally used after a panic to make sure stuff goes
+ * out.
+ */
int run_to_completion;
/* The I/O port of an SI interface. */
int port;
- /* The space between start addresses of the two ports. For
- instance, if the first port is 0xca2 and the spacing is 4, then
- the second port is 0xca6. */
+ /*
+ * The space between start addresses of the two ports. For
+ * instance, if the first port is 0xca2 and the spacing is 4, then
+ * the second port is 0xca6.
+ */
unsigned int spacing;
/* zero if no irq; */
@@ -244,10 +253,12 @@ struct smi_info
/* Used to gracefully stop the timer without race conditions. */
atomic_t stop_operation;
- /* The driver will disable interrupts when it gets into a
- situation where it cannot handle messages due to lack of
- memory. Once that situation clears up, it will re-enable
- interrupts. */
+ /*
+ * The driver will disable interrupts when it gets into a
+ * situation where it cannot handle messages due to lack of
+ * memory. Once that situation clears up, it will re-enable
+ * interrupts.
+ */
int interrupt_disabled;
/* From the get device id response... */
@@ -257,8 +268,10 @@ struct smi_info
struct device *dev;
struct platform_device *pdev;
- /* True if we allocated the device, false if it came from
- * someplace else (like PCI). */
+ /*
+ * True if we allocated the device, false if it came from
+ * someplace else (like PCI).
+ */
int dev_registered;
/* Slave address, could be reported from DMI. */
@@ -267,7 +280,7 @@ struct smi_info
/* Counters and things for the proc filesystem. */
atomic_t stats[SI_NUM_STATS];
- struct task_struct *thread;
+ struct task_struct *thread;
struct list_head link;
};
@@ -288,7 +301,7 @@ static int try_smi_init(struct smi_info *smi);
static void cleanup_one_si(struct smi_info *to_clean);
static ATOMIC_NOTIFIER_HEAD(xaction_notifier_list);
-static int register_xaction_notifier(struct notifier_block * nb)
+static int register_xaction_notifier(struct notifier_block *nb)
{
return atomic_notifier_chain_register(&xaction_notifier_list, nb);
}
@@ -297,7 +310,7 @@ static void deliver_recv_msg(struct smi_info *smi_info,
struct ipmi_smi_msg *msg)
{
/* Deliver the message to the upper layer with the lock
- released. */
+ released. */
spin_unlock(&(smi_info->si_lock));
ipmi_smi_msg_received(smi_info->intf, msg);
spin_lock(&(smi_info->si_lock));
@@ -329,8 +342,10 @@ static enum si_sm_result start_next_msg(struct smi_info *smi_info)
struct timeval t;
#endif
- /* No need to save flags, we aleady have interrupts off and we
- already hold the SMI lock. */
+ /*
+ * No need to save flags, we aleady have interrupts off and we
+ * already hold the SMI lock.
+ */
if (!smi_info->run_to_completion)
spin_lock(&(smi_info->msg_lock));
@@ -353,7 +368,7 @@ static enum si_sm_result start_next_msg(struct smi_info *smi_info)
link);
#ifdef DEBUG_TIMING
do_gettimeofday(&t);
- printk("**Start2: %d.%9.9d\n", t.tv_sec, t.tv_usec);
+ printk(KERN_DEBUG "**Start2: %d.%9.9d\n", t.tv_sec, t.tv_usec);
#endif
err = atomic_notifier_call_chain(&xaction_notifier_list,
0, smi_info);
@@ -365,13 +380,12 @@ static enum si_sm_result start_next_msg(struct smi_info *smi_info)
smi_info->si_sm,
smi_info->curr_msg->data,
smi_info->curr_msg->data_size);
- if (err) {
+ if (err)
return_hosed_msg(smi_info, err);
- }
rv = SI_SM_CALL_WITHOUT_DELAY;
}
- out:
+ out:
if (!smi_info->run_to_completion)
spin_unlock(&(smi_info->msg_lock));
@@ -382,8 +396,10 @@ static void start_enable_irq(struct smi_info *smi_info)
{
unsigned char msg[2];
- /* If we are enabling interrupts, we have to tell the
- BMC to use them. */
+ /*
+ * If we are enabling interrupts, we have to tell the
+ * BMC to use them.
+ */
msg[0] = (IPMI_NETFN_APP_REQUEST << 2);
msg[1] = IPMI_GET_BMC_GLOBAL_ENABLES_CMD;
@@ -415,10 +431,12 @@ static void start_clear_flags(struct smi_info *smi_info)
smi_info->si_state = SI_CLEARING_FLAGS;
}
-/* When we have a situtaion where we run out of memory and cannot
- allocate messages, we just leave them in the BMC and run the system
- polled until we can allocate some memory. Once we have some
- memory, we will re-enable the interrupt. */
+/*
+ * When we have a situtaion where we run out of memory and cannot
+ * allocate messages, we just leave them in the BMC and run the system
+ * polled until we can allocate some memory. Once we have some
+ * memory, we will re-enable the interrupt.
+ */
static inline void disable_si_irq(struct smi_info *smi_info)
{
if ((smi_info->irq) && (!smi_info->interrupt_disabled)) {
@@ -486,12 +504,11 @@ static void handle_flags(struct smi_info *smi_info)
smi_info->curr_msg->data_size);
smi_info->si_state = SI_GETTING_EVENTS;
} else if (smi_info->msg_flags & OEM_DATA_AVAIL &&
- smi_info->oem_data_avail_handler) {
+ smi_info->oem_data_avail_handler) {
if (smi_info->oem_data_avail_handler(smi_info))
goto retry;
- } else {
+ } else
smi_info->si_state = SI_NORMAL;
- }
}
static void handle_transaction_done(struct smi_info *smi_info)
@@ -501,7 +518,7 @@ static void handle_transaction_done(struct smi_info *smi_info)
struct timeval t;
do_gettimeofday(&t);
- printk("**Done: %d.%9.9d\n", t.tv_sec, t.tv_usec);
+ printk(KERN_DEBUG "**Done: %d.%9.9d\n", t.tv_sec, t.tv_usec);
#endif
switch (smi_info->si_state) {
case SI_NORMAL:
@@ -514,9 +531,11 @@ static void handle_transaction_done(struct smi_info *smi_info)
smi_info->curr_msg->rsp,
IPMI_MAX_MSG_LENGTH);
- /* Do this here becase deliver_recv_msg() releases the
- lock, and a new message can be put in during the
- time the lock is released. */
+ /*
+ * Do this here becase deliver_recv_msg() releases the
+ * lock, and a new message can be put in during the
+ * time the lock is released.
+ */
msg = smi_info->curr_msg;
smi_info->curr_msg = NULL;
deliver_recv_msg(smi_info, msg);
@@ -530,12 +549,13 @@ static void handle_transaction_done(struct smi_info *smi_info)
/* We got the flags from the SMI, now handle them. */
len = smi_info->handlers->get_result(smi_info->si_sm, msg, 4);
if (msg[2] != 0) {
- /* Error fetching flags, just give up for
- now. */
+ /* Error fetching flags, just give up for now. */
smi_info->si_state = SI_NORMAL;
} else if (len < 4) {
- /* Hmm, no flags. That's technically illegal, but
- don't use uninitialized data. */
+ /*
+ * Hmm, no flags. That's technically illegal, but
+ * don't use uninitialized data.
+ */
smi_info->si_state = SI_NORMAL;
} else {
smi_info->msg_flags = msg[3];
@@ -572,9 +592,11 @@ static void handle_transaction_done(struct smi_info *smi_info)
smi_info->curr_msg->rsp,
IPMI_MAX_MSG_LENGTH);
- /* Do this here becase deliver_recv_msg() releases the
- lock, and a new message can be put in during the
- time the lock is released. */
+ /*
+ * Do this here becase deliver_recv_msg() releases the
+ * lock, and a new message can be put in during the
+ * time the lock is released.
+ */
msg = smi_info->curr_msg;
smi_info->curr_msg = NULL;
if (msg->rsp[2] != 0) {
@@ -587,10 +609,12 @@ static void handle_transaction_done(struct smi_info *smi_info)
} else {
smi_inc_stat(smi_info, events);
- /* Do this before we deliver the message
- because delivering the message releases the
- lock and something else can mess with the
- state. */
+ /*
+ * Do this before we deliver the message
+ * because delivering the message releases the
+ * lock and something else can mess with the
+ * state.
+ */
handle_flags(smi_info);
deliver_recv_msg(smi_info, msg);
@@ -606,9 +630,11 @@ static void handle_transaction_done(struct smi_info *smi_info)
smi_info->curr_msg->rsp,
IPMI_MAX_MSG_LENGTH);
- /* Do this here becase deliver_recv_msg() releases the
- lock, and a new message can be put in during the
- time the lock is released. */
+ /*
+ * Do this here becase deliver_recv_msg() releases the
+ * lock, and a new message can be put in during the
+ * time the lock is released.
+ */
msg = smi_info->curr_msg;
smi_info->curr_msg = NULL;
if (msg->rsp[2] != 0) {
@@ -621,10 +647,12 @@ static void handle_transaction_done(struct smi_info *smi_info)
} else {
smi_inc_stat(smi_info, incoming_messages);
- /* Do this before we deliver the message
- because delivering the message releases the
- lock and something else can mess with the
- state. */
+ /*
+ * Do this before we deliver the message
+ * because delivering the message releases the
+ * lock and something else can mess with the
+ * state.
+ */
handle_flags(smi_info);
deliver_recv_msg(smi_info, msg);
@@ -712,46 +740,49 @@ static void handle_transaction_done(struct smi_info *smi_info)
}
}
-/* Called on timeouts and events. Timeouts should pass the elapsed
- time, interrupts should pass in zero. Must be called with
- si_lock held and interrupts disabled. */
+/*
+ * Called on timeouts and events. Timeouts should pass the elapsed
+ * time, interrupts should pass in zero. Must be called with
+ * si_lock held and interrupts disabled.
+ */
static enum si_sm_result smi_event_handler(struct smi_info *smi_info,
int time)
{
enum si_sm_result si_sm_result;
restart:
- /* There used to be a loop here that waited a little while
- (around 25us) before giving up. That turned out to be
- pointless, the minimum delays I was seeing were in the 300us
- range, which is far too long to wait in an interrupt. So
- we just run until the state machine tells us something
- happened or it needs a d