Skip to content

L
linux
Commit bee67d34 authored by Joe Perches's avatar Joe Perches Committed by David S. Miller
Browse files
Options

net/atm/mpoa_caches.c: checkpatch cleanups 

Convert #include <asm... to #include <linux...
Add printk argument verification to dprintk and ddprintk
Spacing cleanups
Mostly 80 column wrapped.
Signed-off-by: default avatarJoe Perches <joe@perches.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 57100440
Hide whitespace changes
Inline Side-by-side
Showing with 88 additions and 72 deletions
net/atm/mpoa_caches.c
View file @ bee67d34
......@@ -11,15 +11,17 @@
*/
#if 0
#define dprintk printk /* debug */
#define dprintk(format, args...) printk(KERN_DEBUG format, ##args) /* debug */
#else
#define dprintk(format,args...)
#define dprintk(format, args...) \
do { if (0) printk(KERN_DEBUG format, ##args); } while (0)
#endif
#if 0
#define ddprintk printk /* more debug */
#define ddprintk printk(KERN_DEBUG format, ##args) /* more debug */
#else
#define ddprintk(format,args...)
#define ddprintk(format, args...) \
do { if (0) printk(KERN_DEBUG format, ##args); } while (0)
#endif
static in_cache_entry *in_cache_get(__be32 dst_ip,
......@@ -29,8 +31,8 @@ static in_cache_entry *in_cache_get(__be32 dst_ip,
read_lock_bh(&client->ingress_lock);
entry = client->in_cache;
while(entry != NULL){
if( entry->ctrl_info.in_dst_ip == dst_ip ){
while (entry != NULL) {
if (entry->ctrl_info.in_dst_ip == dst_ip) {
atomic_inc(&entry->use);
read_unlock_bh(&client->ingress_lock);
return entry;
......@@ -50,8 +52,8 @@ static in_cache_entry *in_cache_get_with_mask(__be32 dst_ip,
read_lock_bh(&client->ingress_lock);
entry = client->in_cache;
while(entry != NULL){
if((entry->ctrl_info.in_dst_ip & mask) == (dst_ip & mask )){
while (entry != NULL) {
if ((entry->ctrl_info.in_dst_ip & mask) == (dst_ip & mask)) {
atomic_inc(&entry->use);
read_unlock_bh(&client->ingress_lock);
return entry;
......@@ -65,14 +67,14 @@ static in_cache_entry *in_cache_get_with_mask(__be32 dst_ip,
}
static in_cache_entry *in_cache_get_by_vcc(struct atm_vcc *vcc,
struct mpoa_client *client )
struct mpoa_client *client)
{
in_cache_entry *entry;
read_lock_bh(&client->ingress_lock);
entry = client->in_cache;
while(entry != NULL){
if(entry->shortcut == vcc) {
while (entry != NULL) {
if (entry->shortcut == vcc) {
atomic_inc(&entry->use);
read_unlock_bh(&client->ingress_lock);
return entry;
......@@ -90,11 +92,12 @@ static in_cache_entry *in_cache_add_entry(__be32 dst_ip,
in_cache_entry *entry = kzalloc(sizeof(in_cache_entry), GFP_KERNEL);
if (entry == NULL) {
printk("mpoa: mpoa_caches.c: new_in_cache_entry: out of memory\n");
pr_info("mpoa: mpoa_caches.c: new_in_cache_entry: out of memory\n");
return NULL;
}
dprintk("mpoa: mpoa_caches.c: adding an ingress entry, ip = %pI4\n", &dst_ip);
dprintk("mpoa: mpoa_caches.c: adding an ingress entry, ip = %pI4\n",
&dst_ip);
atomic_set(&entry->use, 1);
dprintk("mpoa: mpoa_caches.c: new_in_cache_entry: about to lock\n");
......@@ -126,39 +129,41 @@ static int cache_hit(in_cache_entry *entry, struct mpoa_client *mpc)
struct k_message msg;
entry->count++;
if(entry->entry_state == INGRESS_RESOLVED && entry->shortcut != NULL)
if (entry->entry_state == INGRESS_RESOLVED && entry->shortcut != NULL)
return OPEN;
if(entry->entry_state == INGRESS_REFRESHING){
if(entry->count > mpc->parameters.mpc_p1){
if (entry->entry_state == INGRESS_REFRESHING) {
if (entry->count > mpc->parameters.mpc_p1) {
msg.type = SND_MPOA_RES_RQST;
msg.content.in_info = entry->ctrl_info;
memcpy(msg.MPS_ctrl, mpc->mps_ctrl_addr, ATM_ESA_LEN);
qos = atm_mpoa_search_qos(entry->ctrl_info.in_dst_ip);
if (qos != NULL) msg.qos = qos->qos;
if (qos != NULL)
msg.qos = qos->qos;
msg_to_mpoad(&msg, mpc);
do_gettimeofday(&(entry->reply_wait));
entry->entry_state = INGRESS_RESOLVING;
}
if(entry->shortcut != NULL)
if (entry->shortcut != NULL)
return OPEN;
return CLOSED;
}
if(entry->entry_state == INGRESS_RESOLVING && entry->shortcut != NULL)
if (entry->entry_state == INGRESS_RESOLVING && entry->shortcut != NULL)
return OPEN;
if( entry->count > mpc->parameters.mpc_p1 &&
entry->entry_state == INGRESS_INVALID){
if (entry->count > mpc->parameters.mpc_p1 &&
entry->entry_state == INGRESS_INVALID) {
dprintk("mpoa: (%s) mpoa_caches.c: threshold exceeded for ip %pI4, sending MPOA res req\n",
mpc->dev->name, &entry->ctrl_info.in_dst_ip);
entry->entry_state = INGRESS_RESOLVING;
msg.type = SND_MPOA_RES_RQST;
memcpy(msg.MPS_ctrl, mpc->mps_ctrl_addr, ATM_ESA_LEN );
msg.type = SND_MPOA_RES_RQST;
memcpy(msg.MPS_ctrl, mpc->mps_ctrl_addr, ATM_ESA_LEN);
msg.content.in_info = entry->ctrl_info;
qos = atm_mpoa_search_qos(entry->ctrl_info.in_dst_ip);
if (qos != NULL) msg.qos = qos->qos;
msg_to_mpoad( &msg, mpc);
if (qos != NULL)
msg.qos = qos->qos;
msg_to_mpoad(&msg, mpc);
do_gettimeofday(&(entry->reply_wait));
}
......@@ -195,14 +200,15 @@ static void in_cache_remove_entry(in_cache_entry *entry,
if (entry->next != NULL)
entry->next->prev = entry->prev;
client->in_ops->put(entry);
if(client->in_cache == NULL && client->eg_cache == NULL){
if (client->in_cache == NULL && client->eg_cache == NULL) {
msg.type = STOP_KEEP_ALIVE_SM;
msg_to_mpoad(&msg,client);
msg_to_mpoad(&msg, client);
}
/* Check if the egress side still uses this VCC */
if (vcc != NULL) {
eg_cache_entry *eg_entry = client->eg_ops->get_by_vcc(vcc, client);
eg_cache_entry *eg_entry = client->eg_ops->get_by_vcc(vcc,
client);
if (eg_entry != NULL) {
client->eg_ops->put(eg_entry);
return;
......@@ -213,7 +219,6 @@ static void in_cache_remove_entry(in_cache_entry *entry,
return;
}
/* Call this every MPC-p2 seconds... Not exactly correct solution,
but an easy one... */
static void clear_count_and_expired(struct mpoa_client *client)
......@@ -225,11 +230,11 @@ static void clear_count_and_expired(struct mpoa_client *client)
write_lock_bh(&client->ingress_lock);
entry = client->in_cache;
while(entry != NULL){
entry->count=0;
while (entry != NULL) {
entry->count = 0;
next_entry = entry->next;
if((now.tv_sec - entry->tv.tv_sec)
> entry->ctrl_info.holding_time){
if ((now.tv_sec - entry->tv.tv_sec)
> entry->ctrl_info.holding_time) {
dprintk("mpoa: mpoa_caches.c: holding time expired, ip = %pI4\n",
&entry->ctrl_info.in_dst_ip);
client->in_ops->remove_entry(entry, client);
......@@ -250,33 +255,38 @@ static void check_resolving_entries(struct mpoa_client *client)
struct timeval now;
struct k_message msg;
do_gettimeofday( &now );
do_gettimeofday(&now);
read_lock_bh(&client->ingress_lock);
entry = client->in_cache;
while( entry != NULL ){
if(entry->entry_state == INGRESS_RESOLVING){
if(now.tv_sec - entry->hold_down.tv_sec < client->parameters.mpc_p6){
entry = entry->next; /* Entry in hold down */
while (entry != NULL) {
if (entry->entry_state == INGRESS_RESOLVING) {
if ((now.tv_sec - entry->hold_down.tv_sec) <
client->parameters.mpc_p6) {
entry = entry->next; /* Entry in hold down */
continue;
}
if( (now.tv_sec - entry->reply_wait.tv_sec) >
entry->retry_time ){
entry->retry_time = MPC_C1*( entry->retry_time );
if(entry->retry_time > client->parameters.mpc_p5){
/* Retry time maximum exceeded, put entry in hold down. */
if ((now.tv_sec - entry->reply_wait.tv_sec) >
entry->retry_time) {
entry->retry_time = MPC_C1 * (entry->retry_time);
/*
* Retry time maximum exceeded,
* put entry in hold down.
*/
if (entry->retry_time > client->parameters.mpc_p5) {
do_gettimeofday(&(entry->hold_down));
entry->retry_time = client->parameters.mpc_p4;
entry = entry->next;
continue;
}
/* Ask daemon to send a resolution request. */
memset(&(entry->hold_down),0,sizeof(struct timeval));
memset(&(entry->hold_down), 0, sizeof(struct timeval));
msg.type = SND_MPOA_RES_RTRY;
memcpy(msg.MPS_ctrl, client->mps_ctrl_addr, ATM_ESA_LEN);
msg.content.in_info = entry->ctrl_info;
qos = atm_mpoa_search_qos(entry->ctrl_info.in_dst_ip);
if (qos != NULL) msg.qos = qos->qos;
if (qos != NULL)
msg.qos = qos->qos;
msg_to_mpoad(&msg, client);
do_gettimeofday(&(entry->reply_wait));
}
......@@ -296,11 +306,12 @@ static void refresh_entries(struct mpoa_client *client)
do_gettimeofday(&now);
read_lock_bh(&client->ingress_lock);
while( entry != NULL ){
if( entry->entry_state == INGRESS_RESOLVED ){
if(!(entry->refresh_time))
entry->refresh_time = (2*(entry->ctrl_info.holding_time))/3;
if( (now.tv_sec - entry->reply_wait.tv_sec) > entry->refresh_time ){
while (entry != NULL) {
if (entry->entry_state == INGRESS_RESOLVED) {
if (!(entry->refresh_time))
entry->refresh_time = (2 * (entry->ctrl_info.holding_time))/3;
if ((now.tv_sec - entry->reply_wait.tv_sec) >
entry->refresh_time) {
dprintk("mpoa: mpoa_caches.c: refreshing an entry.\n");
entry->entry_state = INGRESS_REFRESHING;
......@@ -314,21 +325,22 @@ static void refresh_entries(struct mpoa_client *client)
static void in_destroy_cache(struct mpoa_client *mpc)
{
write_lock_irq(&mpc->ingress_lock);
while(mpc->in_cache != NULL)
while (mpc->in_cache != NULL)
mpc->in_ops->remove_entry(mpc->in_cache, mpc);
write_unlock_irq(&mpc->ingress_lock);
return;
}
static eg_cache_entry *eg_cache_get_by_cache_id(__be32 cache_id, struct mpoa_client *mpc)
static eg_cache_entry *eg_cache_get_by_cache_id(__be32 cache_id,
struct mpoa_client *mpc)
{
eg_cache_entry *entry;
read_lock_irq(&mpc->egress_lock);
entry = mpc->eg_cache;
while(entry != NULL){
if(entry->ctrl_info.cache_id == cache_id){
while (entry != NULL) {
if (entry->ctrl_info.cache_id == cache_id) {
atomic_inc(&entry->use);
read_unlock_irq(&mpc->egress_lock);
return entry;
......@@ -348,7 +360,7 @@ static eg_cache_entry *eg_cache_get_by_tag(__be32 tag, struct mpoa_client *mpc)
read_lock_irqsave(&mpc->egress_lock, flags);
entry = mpc->eg_cache;
while (entry != NULL){
while (entry != NULL) {
if (entry->ctrl_info.tag == tag) {
atomic_inc(&entry->use);
read_unlock_irqrestore(&mpc->egress_lock, flags);
......@@ -362,14 +374,15 @@ static eg_cache_entry *eg_cache_get_by_tag(__be32 tag, struct mpoa_client *mpc)
}
/* This can be called from any context since it saves CPU flags */
static eg_cache_entry *eg_cache_get_by_vcc(struct atm_vcc *vcc, struct mpoa_client *mpc)
static eg_cache_entry *eg_cache_get_by_vcc(struct atm_vcc *vcc,
struct mpoa_client *mpc)
{
unsigned long flags;
eg_cache_entry *entry;
read_lock_irqsave(&mpc->egress_lock, flags);
entry = mpc->eg_cache;
while (entry != NULL){
while (entry != NULL) {
if (entry->shortcut == vcc) {
atomic_inc(&entry->use);
read_unlock_irqrestore(&mpc->egress_lock, flags);
......@@ -382,14 +395,15 @@ static eg_cache_entry *eg_cache_get_by_vcc(struct atm_vcc *vcc, struct mpoa_clie
return NULL;
}
static eg_cache_entry *eg_cache_get_by_src_ip(__be32 ipaddr, struct mpoa_client *mpc)
static eg_cache_entry *eg_cache_get_by_src_ip(__be32 ipaddr,
struct mpoa_client *mpc)
{
eg_cache_entry *entry;
read_lock_irq(&mpc->egress_lock);
entry = mpc->eg_cache;
while(entry != NULL){
if(entry->latest_ip_addr == ipaddr) {
while (entry != NULL) {
if (entry->latest_ip_addr == ipaddr) {
atomic_inc(&entry->use);
read_unlock_irq(&mpc->egress_lock);
return entry;
......@@ -429,9 +443,9 @@ static void eg_cache_remove_entry(eg_cache_entry *entry,
if (entry->next != NULL)
entry->next->prev = entry->prev;
client->eg_ops->put(entry);
if(client->in_cache == NULL && client->eg_cache == NULL){
if (client->in_cache == NULL && client->eg_cache == NULL) {
msg.type = STOP_KEEP_ALIVE_SM;
msg_to_mpoad(&msg,client);
msg_to_mpoad(&msg, client);
}
/* Check if the ingress side still uses this VCC */
......@@ -447,12 +461,13 @@ static void eg_cache_remove_entry(eg_cache_entry *entry,
return;
}
static eg_cache_entry *eg_cache_add_entry(struct k_message *msg, struct mpoa_client *client)
static eg_cache_entry *eg_cache_add_entry(struct k_message *msg,
struct mpoa_client *client)
{
eg_cache_entry *entry = kzalloc(sizeof(eg_cache_entry), GFP_KERNEL);
if (entry == NULL) {
printk("mpoa: mpoa_caches.c: new_eg_cache_entry: out of memory\n");
pr_info("out of memory\n");
return NULL;
}
......@@ -472,7 +487,8 @@ static eg_cache_entry *eg_cache_add_entry(struct k_message *msg, struct mpoa_cli
entry->ctrl_info = msg->content.eg_info;
do_gettimeofday(&(entry->tv));
entry->entry_state = EGRESS_RESOLVED;
dprintk("mpoa: mpoa_caches.c: new_eg_cache_entry cache_id %lu\n", ntohl(entry->ctrl_info.cache_id));
dprintk("mpoa: mpoa_caches.c: new_eg_cache_entry cache_id %u\n",
ntohl(entry->ctrl_info.cache_id));
dprintk("mpoa: mpoa_caches.c: mps_ip = %pI4\n",
&entry->ctrl_info.mps_ip);
atomic_inc(&entry->use);
......@@ -483,7 +499,7 @@ static eg_cache_entry *eg_cache_add_entry(struct k_message *msg, struct mpoa_cli
return entry;
}
static void update_eg_cache_entry(eg_cache_entry * entry, uint16_t holding_time)
static void update_eg_cache_entry(eg_cache_entry *entry, uint16_t holding_time)
{
do_gettimeofday(&(entry->tv));
entry->entry_state = EGRESS_RESOLVED;
......@@ -502,13 +518,14 @@ static void clear_expired(struct mpoa_client *client)
write_lock_irq(&client->egress_lock);
entry = client->eg_cache;
while(entry != NULL){
while (entry != NULL) {
next_entry = entry->next;
if((now.tv_sec - entry->tv.tv_sec)
> entry->ctrl_info.holding_time){
if ((now.tv_sec - entry->tv.tv_sec)
> entry->ctrl_info.holding_time) {
msg.type = SND_EGRESS_PURGE;
msg.content.eg_info = entry->ctrl_info;
dprintk("mpoa: mpoa_caches.c: egress_cache: holding time expired, cache_id = %lu.\n",ntohl(entry->ctrl_info.cache_id));
dprintk("mpoa: mpoa_caches.c: egress_cache: holding time expired, cache_id = %u.\n",
ntohl(entry->ctrl_info.cache_id));
msg_to_mpoad(&msg, client);
client->eg_ops->remove_entry(entry, client);
}
......@@ -522,7 +539,7 @@ static void clear_expired(struct mpoa_client *client)
static void eg_destroy_cache(struct mpoa_client *mpc)
{
write_lock_irq(&mpc->egress_lock);
while(mpc->eg_cache != NULL)
while (mpc->eg_cache != NULL)
mpc->eg_ops->remove_entry(mpc->eg_cache, mpc);
write_unlock_irq(&mpc->egress_lock);
......@@ -530,7 +547,6 @@ static void eg_destroy_cache(struct mpoa_client *mpc)
}
static struct in_cache_ops ingress_ops = {
in_cache_add_entry, /* add_entry */
in_cache_get, /* get */
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7