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Date: Sun, 2 Dec 2007 19:36:54 -0200
From: Arnaldo Carvalho de Melo <acme@...hat.com>
To: Gerrit Renker <gerrit@....abdn.ac.uk>
Cc: netdev@...r.kernel.org, dccp@...r.kernel.org,
Ingo Molnar <mingo@...e.hu>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 5/7] [TFRC]: Rename dccp_rx_ to tfrc_rx_
This is in preparation for merging the new rx history code written by Gerrit Renker.
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
net/dccp/ccids/ccid3.c | 32 ++++++------
net/dccp/ccids/lib/loss_interval.c | 14 +++---
net/dccp/ccids/lib/packet_history.c | 90 +++++++++++++++++-----------------
net/dccp/ccids/lib/packet_history.h | 48 +++++++++---------
4 files changed, 92 insertions(+), 92 deletions(-)
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index 07920bb..c95dca8 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -677,7 +677,7 @@ static void ccid3_hc_rx_send_feedback(struct sock *sk)
{
struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
struct dccp_sock *dp = dccp_sk(sk);
- struct dccp_rx_hist_entry *packet;
+ struct tfrc_rx_hist_entry *packet;
ktime_t now;
suseconds_t delta;
@@ -701,7 +701,7 @@ static void ccid3_hc_rx_send_feedback(struct sock *sk)
return;
}
- packet = dccp_rx_hist_find_data_packet(&hcrx->ccid3hcrx_hist);
+ packet = tfrc_rx_hist_find_data_packet(&hcrx->ccid3hcrx_hist);
if (unlikely(packet == NULL)) {
DCCP_WARN("%s(%p), no data packet in history!\n",
dccp_role(sk), sk);
@@ -709,7 +709,7 @@ static void ccid3_hc_rx_send_feedback(struct sock *sk)
}
hcrx->ccid3hcrx_tstamp_last_feedback = now;
- hcrx->ccid3hcrx_ccval_last_counter = packet->dccphrx_ccval;
+ hcrx->ccid3hcrx_ccval_last_counter = packet->tfrchrx_ccval;
hcrx->ccid3hcrx_bytes_recv = 0;
if (hcrx->ccid3hcrx_p == 0)
@@ -752,12 +752,12 @@ static int ccid3_hc_rx_insert_options(struct sock *sk, struct sk_buff *skb)
}
static int ccid3_hc_rx_detect_loss(struct sock *sk,
- struct dccp_rx_hist_entry *packet)
+ struct tfrc_rx_hist_entry *packet)
{
struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
- struct dccp_rx_hist_entry *rx_hist =
- dccp_rx_hist_head(&hcrx->ccid3hcrx_hist);
- u64 seqno = packet->dccphrx_seqno;
+ struct tfrc_rx_hist_entry *rx_hist =
+ tfrc_rx_hist_head(&hcrx->ccid3hcrx_hist);
+ u64 seqno = packet->tfrchrx_seqno;
u64 tmp_seqno;
int loss = 0;
u8 ccval;
@@ -766,9 +766,9 @@ static int ccid3_hc_rx_detect_loss(struct sock *sk,
tmp_seqno = hcrx->ccid3hcrx_seqno_nonloss;
if (!rx_hist ||
- follows48(packet->dccphrx_seqno, hcrx->ccid3hcrx_seqno_nonloss)) {
+ follows48(packet->tfrchrx_seqno, hcrx->ccid3hcrx_seqno_nonloss)) {
hcrx->ccid3hcrx_seqno_nonloss = seqno;
- hcrx->ccid3hcrx_ccval_nonloss = packet->dccphrx_ccval;
+ hcrx->ccid3hcrx_ccval_nonloss = packet->tfrchrx_ccval;
goto detect_out;
}
@@ -789,7 +789,7 @@ static int ccid3_hc_rx_detect_loss(struct sock *sk,
dccp_inc_seqno(&tmp_seqno);
hcrx->ccid3hcrx_seqno_nonloss = tmp_seqno;
dccp_inc_seqno(&tmp_seqno);
- while (dccp_rx_hist_find_entry(&hcrx->ccid3hcrx_hist,
+ while (tfrc_rx_hist_find_entry(&hcrx->ccid3hcrx_hist,
tmp_seqno, &ccval)) {
hcrx->ccid3hcrx_seqno_nonloss = tmp_seqno;
hcrx->ccid3hcrx_ccval_nonloss = ccval;
@@ -799,13 +799,13 @@ static int ccid3_hc_rx_detect_loss(struct sock *sk,
/* FIXME - this code could be simplified with above while */
/* but works at moment */
- if (follows48(packet->dccphrx_seqno, hcrx->ccid3hcrx_seqno_nonloss)) {
+ if (follows48(packet->tfrchrx_seqno, hcrx->ccid3hcrx_seqno_nonloss)) {
hcrx->ccid3hcrx_seqno_nonloss = seqno;
- hcrx->ccid3hcrx_ccval_nonloss = packet->dccphrx_ccval;
+ hcrx->ccid3hcrx_ccval_nonloss = packet->tfrchrx_ccval;
}
detect_out:
- dccp_rx_hist_add_packet(&hcrx->ccid3hcrx_hist,
+ tfrc_rx_hist_add_packet(&hcrx->ccid3hcrx_hist,
&hcrx->ccid3hcrx_li_hist, packet,
hcrx->ccid3hcrx_seqno_nonloss);
return loss;
@@ -815,7 +815,7 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
{
struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
const struct dccp_options_received *opt_recv;
- struct dccp_rx_hist_entry *packet;
+ struct tfrc_rx_hist_entry *packet;
u32 p_prev, r_sample, rtt_prev;
int loss, payload_size;
ktime_t now;
@@ -850,7 +850,7 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
return;
}
- packet = dccp_rx_hist_entry_new(opt_recv->dccpor_ndp, skb, GFP_ATOMIC);
+ packet = tfrc_rx_hist_entry_new(opt_recv->dccpor_ndp, skb, GFP_ATOMIC);
if (unlikely(packet == NULL)) {
DCCP_WARN("%s(%p), Not enough mem to add rx packet "
"to history, consider it lost!\n", dccp_role(sk), sk);
@@ -933,7 +933,7 @@ static void ccid3_hc_rx_exit(struct sock *sk)
ccid3_hc_rx_set_state(sk, TFRC_RSTATE_TERM);
/* Empty packet history */
- dccp_rx_hist_purge(&hcrx->ccid3hcrx_hist);
+ tfrc_rx_hist_purge(&hcrx->ccid3hcrx_hist);
/* Empty loss interval history */
dccp_li_hist_purge(&hcrx->ccid3hcrx_li_hist);
diff --git a/net/dccp/ccids/lib/loss_interval.c b/net/dccp/ccids/lib/loss_interval.c
index f2ca4eb..a5f59af 100644
--- a/net/dccp/ccids/lib/loss_interval.c
+++ b/net/dccp/ccids/lib/loss_interval.c
@@ -129,7 +129,7 @@ static u32 dccp_li_calc_first_li(struct sock *sk,
u16 s, u32 bytes_recv,
u32 previous_x_recv)
{
- struct dccp_rx_hist_entry *entry, *next, *tail = NULL;
+ struct tfrc_rx_hist_entry *entry, *next, *tail = NULL;
u32 x_recv, p;
suseconds_t rtt, delta;
ktime_t tstamp = ktime_set(0, 0);
@@ -138,18 +138,18 @@ static u32 dccp_li_calc_first_li(struct sock *sk,
int step = 0;
u64 fval;
- list_for_each_entry_safe(entry, next, hist_list, dccphrx_node) {
- if (dccp_rx_hist_entry_data_packet(entry)) {
+ list_for_each_entry_safe(entry, next, hist_list, tfrchrx_node) {
+ if (tfrc_rx_hist_entry_data_packet(entry)) {
tail = entry;
switch (step) {
case 0:
- tstamp = entry->dccphrx_tstamp;
- win_count = entry->dccphrx_ccval;
+ tstamp = entry->tfrchrx_tstamp;
+ win_count = entry->tfrchrx_ccval;
step = 1;
break;
case 1:
- interval = win_count - entry->dccphrx_ccval;
+ interval = win_count - entry->tfrchrx_ccval;
if (interval < 0)
interval += TFRC_WIN_COUNT_LIMIT;
if (interval > 4)
@@ -176,7 +176,7 @@ found:
return ~0;
}
- delta = ktime_us_delta(tstamp, tail->dccphrx_tstamp);
+ delta = ktime_us_delta(tstamp, tail->tfrchrx_tstamp);
DCCP_BUG_ON(delta < 0);
rtt = delta * 4 / interval;
diff --git a/net/dccp/ccids/lib/packet_history.c b/net/dccp/ccids/lib/packet_history.c
index e1ab853..255cca1 100644
--- a/net/dccp/ccids/lib/packet_history.c
+++ b/net/dccp/ccids/lib/packet_history.c
@@ -116,58 +116,58 @@ EXPORT_SYMBOL_GPL(tfrc_tx_hist_rtt);
*/
static struct kmem_cache *tfrc_rx_hist_slab;
-struct dccp_rx_hist_entry *dccp_rx_hist_entry_new(const u32 ndp,
+struct tfrc_rx_hist_entry *tfrc_rx_hist_entry_new(const u32 ndp,
const struct sk_buff *skb,
const gfp_t prio)
{
- struct dccp_rx_hist_entry *entry = kmem_cache_alloc(tfrc_rx_hist_slab,
+ struct tfrc_rx_hist_entry *entry = kmem_cache_alloc(tfrc_rx_hist_slab,
prio);
if (entry != NULL) {
const struct dccp_hdr *dh = dccp_hdr(skb);
- entry->dccphrx_seqno = DCCP_SKB_CB(skb)->dccpd_seq;
- entry->dccphrx_ccval = dh->dccph_ccval;
- entry->dccphrx_type = dh->dccph_type;
- entry->dccphrx_ndp = ndp;
- entry->dccphrx_tstamp = ktime_get_real();
+ entry->tfrchrx_seqno = DCCP_SKB_CB(skb)->dccpd_seq;
+ entry->tfrchrx_ccval = dh->dccph_ccval;
+ entry->tfrchrx_type = dh->dccph_type;
+ entry->tfrchrx_ndp = ndp;
+ entry->tfrchrx_tstamp = ktime_get_real();
}
return entry;
}
-EXPORT_SYMBOL_GPL(dccp_rx_hist_entry_new);
+EXPORT_SYMBOL_GPL(tfrc_rx_hist_entry_new);
-static inline void dccp_rx_hist_entry_delete(struct dccp_rx_hist_entry *entry)
+static inline void tfrc_rx_hist_entry_delete(struct tfrc_rx_hist_entry *entry)
{
kmem_cache_free(tfrc_rx_hist_slab, entry);
}
-int dccp_rx_hist_find_entry(const struct list_head *list, const u64 seq,
+int tfrc_rx_hist_find_entry(const struct list_head *list, const u64 seq,
u8 *ccval)
{
- struct dccp_rx_hist_entry *packet = NULL, *entry;
+ struct tfrc_rx_hist_entry *packet = NULL, *entry;
- list_for_each_entry(entry, list, dccphrx_node)
- if (entry->dccphrx_seqno == seq) {
+ list_for_each_entry(entry, list, tfrchrx_node)
+ if (entry->tfrchrx_seqno == seq) {
packet = entry;
break;
}
if (packet)
- *ccval = packet->dccphrx_ccval;
+ *ccval = packet->tfrchrx_ccval;
return packet != NULL;
}
-EXPORT_SYMBOL_GPL(dccp_rx_hist_find_entry);
-struct dccp_rx_hist_entry *
- dccp_rx_hist_find_data_packet(const struct list_head *list)
+EXPORT_SYMBOL_GPL(tfrc_rx_hist_find_entry);
+struct tfrc_rx_hist_entry *
+ tfrc_rx_hist_find_data_packet(const struct list_head *list)
{
- struct dccp_rx_hist_entry *entry, *packet = NULL;
+ struct tfrc_rx_hist_entry *entry, *packet = NULL;
- list_for_each_entry(entry, list, dccphrx_node)
- if (entry->dccphrx_type == DCCP_PKT_DATA ||
- entry->dccphrx_type == DCCP_PKT_DATAACK) {
+ list_for_each_entry(entry, list, tfrchrx_node)
+ if (entry->tfrchrx_type == DCCP_PKT_DATA ||
+ entry->tfrchrx_type == DCCP_PKT_DATAACK) {
packet = entry;
break;
}
@@ -175,29 +175,29 @@ struct dccp_rx_hist_entry *
return packet;
}
-EXPORT_SYMBOL_GPL(dccp_rx_hist_find_data_packet);
+EXPORT_SYMBOL_GPL(tfrc_rx_hist_find_data_packet);
-void dccp_rx_hist_add_packet(struct list_head *rx_list,
+void tfrc_rx_hist_add_packet(struct list_head *rx_list,
struct list_head *li_list,
- struct dccp_rx_hist_entry *packet,
+ struct tfrc_rx_hist_entry *packet,
u64 nonloss_seqno)
{
- struct dccp_rx_hist_entry *entry, *next;
+ struct tfrc_rx_hist_entry *entry, *next;
u8 num_later = 0;
- list_add(&packet->dccphrx_node, rx_list);
+ list_add(&packet->tfrchrx_node, rx_list);
num_later = TFRC_RECV_NUM_LATE_LOSS + 1;
if (!list_empty(li_list)) {
- list_for_each_entry_safe(entry, next, rx_list, dccphrx_node) {
+ list_for_each_entry_safe(entry, next, rx_list, tfrchrx_node) {
if (num_later == 0) {
if (after48(nonloss_seqno,
- entry->dccphrx_seqno)) {
- list_del_init(&entry->dccphrx_node);
- dccp_rx_hist_entry_delete(entry);
+ entry->tfrchrx_seqno)) {
+ list_del_init(&entry->tfrchrx_node);
+ tfrc_rx_hist_entry_delete(entry);
}
- } else if (dccp_rx_hist_entry_data_packet(entry))
+ } else if (tfrc_rx_hist_entry_data_packet(entry))
--num_later;
}
} else {
@@ -208,7 +208,7 @@ void dccp_rx_hist_add_packet(struct list_head *rx_list,
* We have no loss interval history so we need at least one
* rtt:s of data packets to approximate rtt.
*/
- list_for_each_entry_safe(entry, next, rx_list, dccphrx_node) {
+ list_for_each_entry_safe(entry, next, rx_list, tfrchrx_node) {
if (num_later == 0) {
switch (step) {
case 0:
@@ -220,10 +220,10 @@ void dccp_rx_hist_add_packet(struct list_head *rx_list,
step = 2;
/* OK, find next data packet */
num_later = 1;
- win_count = entry->dccphrx_ccval;
+ win_count = entry->tfrchrx_ccval;
break;
case 2:
- tmp = win_count - entry->dccphrx_ccval;
+ tmp = win_count - entry->tfrchrx_ccval;
if (tmp < 0)
tmp += TFRC_WIN_COUNT_LIMIT;
if (tmp > TFRC_WIN_COUNT_PER_RTT + 1) {
@@ -236,29 +236,29 @@ void dccp_rx_hist_add_packet(struct list_head *rx_list,
num_later = 1;
break;
case 3:
- list_del_init(&entry->dccphrx_node);
- dccp_rx_hist_entry_delete(entry);
+ list_del_init(&entry->tfrchrx_node);
+ tfrc_rx_hist_entry_delete(entry);
break;
}
- } else if (dccp_rx_hist_entry_data_packet(entry))
+ } else if (tfrc_rx_hist_entry_data_packet(entry))
--num_later;
}
}
}
-EXPORT_SYMBOL_GPL(dccp_rx_hist_add_packet);
+EXPORT_SYMBOL_GPL(tfrc_rx_hist_add_packet);
-void dccp_rx_hist_purge(struct list_head *list)
+void tfrc_rx_hist_purge(struct list_head *list)
{
- struct dccp_rx_hist_entry *entry, *next;
+ struct tfrc_rx_hist_entry *entry, *next;
- list_for_each_entry_safe(entry, next, list, dccphrx_node) {
- list_del_init(&entry->dccphrx_node);
- dccp_rx_hist_entry_delete(entry);
+ list_for_each_entry_safe(entry, next, list, tfrchrx_node) {
+ list_del_init(&entry->tfrchrx_node);
+ tfrc_rx_hist_entry_delete(entry);
}
}
-EXPORT_SYMBOL_GPL(dccp_rx_hist_purge);
+EXPORT_SYMBOL_GPL(tfrc_rx_hist_purge);
__init int packet_history_init(void)
{
@@ -269,7 +269,7 @@ __init int packet_history_init(void)
goto out_err;
tfrc_rx_hist_slab = kmem_cache_create("tfrc_rx_hist",
- sizeof(struct dccp_rx_hist_entry), 0,
+ sizeof(struct tfrc_rx_hist_entry), 0,
SLAB_HWCACHE_ALIGN, NULL);
if (tfrc_rx_hist_slab == NULL)
goto out_free_tx;
diff --git a/net/dccp/ccids/lib/packet_history.h b/net/dccp/ccids/lib/packet_history.h
index 34b180b..5b0b983 100644
--- a/net/dccp/ccids/lib/packet_history.h
+++ b/net/dccp/ccids/lib/packet_history.h
@@ -57,51 +57,51 @@ extern u32 tfrc_tx_hist_rtt(struct tfrc_tx_hist_entry *head,
/*
* Receiver History data structures and declarations
*/
-struct dccp_rx_hist_entry {
- struct list_head dccphrx_node;
- u64 dccphrx_seqno:48,
- dccphrx_ccval:4,
- dccphrx_type:4;
- u32 dccphrx_ndp; /* In fact it is from 8 to 24 bits */
- ktime_t dccphrx_tstamp;
+struct tfrc_rx_hist_entry {
+ struct list_head tfrchrx_node;
+ u64 tfrchrx_seqno:48,
+ tfrchrx_ccval:4,
+ tfrchrx_type:4;
+ u32 tfrchrx_ndp; /* In fact it is from 8 to 24 bits */
+ ktime_t tfrchrx_tstamp;
};
-extern struct dccp_rx_hist_entry *
- dccp_rx_hist_entry_new(const u32 ndp,
+extern struct tfrc_rx_hist_entry *
+ tfrc_rx_hist_entry_new(const u32 ndp,
const struct sk_buff *skb,
const gfp_t prio);
-static inline struct dccp_rx_hist_entry *
- dccp_rx_hist_head(struct list_head *list)
+static inline struct tfrc_rx_hist_entry *
+ tfrc_rx_hist_head(struct list_head *list)
{
- struct dccp_rx_hist_entry *head = NULL;
+ struct tfrc_rx_hist_entry *head = NULL;
if (!list_empty(list))
- head = list_entry(list->next, struct dccp_rx_hist_entry,
- dccphrx_node);
+ head = list_entry(list->next, struct tfrc_rx_hist_entry,
+ tfrchrx_node);
return head;
}
-extern int dccp_rx_hist_find_entry(const struct list_head *list, const u64 seq,
+extern int tfrc_rx_hist_find_entry(const struct list_head *list, const u64 seq,
u8 *ccval);
-extern struct dccp_rx_hist_entry *
- dccp_rx_hist_find_data_packet(const struct list_head *list);
+extern struct tfrc_rx_hist_entry *
+ tfrc_rx_hist_find_data_packet(const struct list_head *list);
-extern void dccp_rx_hist_add_packet(struct list_head *rx_list,
+extern void tfrc_rx_hist_add_packet(struct list_head *rx_list,
struct list_head *li_list,
- struct dccp_rx_hist_entry *packet,
+ struct tfrc_rx_hist_entry *packet,
u64 nonloss_seqno);
-extern void dccp_rx_hist_purge(struct list_head *list);
+extern void tfrc_rx_hist_purge(struct list_head *list);
static inline int
- dccp_rx_hist_entry_data_packet(const struct dccp_rx_hist_entry *entry)
+ tfrc_rx_hist_entry_data_packet(const struct tfrc_rx_hist_entry *entry)
{
- return entry->dccphrx_type == DCCP_PKT_DATA ||
- entry->dccphrx_type == DCCP_PKT_DATAACK;
+ return entry->tfrchrx_type == DCCP_PKT_DATA ||
+ entry->tfrchrx_type == DCCP_PKT_DATAACK;
}
-extern u64 dccp_rx_hist_detect_loss(struct list_head *rx_list,
+extern u64 tfrc_rx_hist_detect_loss(struct list_head *rx_list,
struct list_head *li_list, u8 *win_loss);
#endif /* _DCCP_PKT_HIST_ */
--
1.5.3.4
--
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