[TFRC]: Rename dccp_rx_ to tfrc_rx_
Arnaldo Carvalho de Melo [Thu, 6 Dec 2007 14:28:39 +0000 (12:28 -0200)]
This is in preparation for merging the new rx history code written by Gerrit Renker.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/dccp/ccids/ccid3.c
net/dccp/ccids/lib/loss_interval.c
net/dccp/ccids/lib/packet_history.c
net/dccp/ccids/lib/packet_history.h

index 2ba0a7c..e0f87f2 100644 (file)
@@ -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);
index f2ca4eb..a5f59af 100644 (file)
@@ -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;
index e1ab853..255cca1 100644 (file)
@@ -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;
index 34b180b..5b0b983 100644 (file)
@@ -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_ */