The branch main has been updated by tuexen:
URL:
https://cgit.FreeBSD.org/src/commit/?id=414499b3f911812d49a8c9af05102c0dc37ff878
commit 414499b3f911812d49a8c9af05102c0dc37ff878
Author: Michael Tuexen <tue...@freebsd.org>
AuthorDate: 2021-09-23 12:16:56 +0000
Commit: Michael Tuexen <tue...@freebsd.org>
CommitDate: 2021-09-23 12:16:56 +0000
sctp: Cleanup stream schedulers.
No functional change intended.
MFC after: 1 week
---
sys/netinet/sctp_output.c | 2 +-
sys/netinet/sctp_ss_functions.c | 208 +++++++++++++++++-----------------------
sys/netinet/sctp_structs.h | 21 ++--
sys/netinet/sctp_usrreq.c | 4 +-
4 files changed, 106 insertions(+), 129 deletions(-)
diff --git a/sys/netinet/sctp_output.c b/sys/netinet/sctp_output.c
index 36339ac0f2b1..cad15be7a57b 100644
--- a/sys/netinet/sctp_output.c
+++ b/sys/netinet/sctp_output.c
@@ -12176,7 +12176,7 @@ sctp_send_str_reset_req(struct sctp_tcb *stcb,
* initializing the new stuff.
*/
SCTP_TCB_SEND_LOCK(stcb);
- stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 0);
+ stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, false);
for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
TAILQ_INIT(&stcb->asoc.strmout[i].outqueue);
/* FIX ME FIX ME */
diff --git a/sys/netinet/sctp_ss_functions.c b/sys/netinet/sctp_ss_functions.c
index 9d877568bcf1..ff108eb0eb33 100644
--- a/sys/netinet/sctp_ss_functions.c
+++ b/sys/netinet/sctp_ss_functions.c
@@ -54,6 +54,7 @@ sctp_ss_default_init(struct sctp_tcb *stcb, struct
sctp_association *asoc)
uint16_t i;
SCTP_TCB_SEND_LOCK_ASSERT(stcb);
+
asoc->ss_data.locked_on_sending = NULL;
asoc->ss_data.last_out_stream = NULL;
TAILQ_INIT(&asoc->ss_data.out.wheel);
@@ -72,7 +73,7 @@ sctp_ss_default_init(struct sctp_tcb *stcb, struct
sctp_association *asoc)
static void
sctp_ss_default_clear(struct sctp_tcb *stcb, struct sctp_association *asoc,
- int clear_values SCTP_UNUSED)
+ bool clear_values SCTP_UNUSED)
{
SCTP_TCB_SEND_LOCK_ASSERT(stcb);
@@ -80,9 +81,8 @@ sctp_ss_default_clear(struct sctp_tcb *stcb, struct
sctp_association *asoc,
struct sctp_stream_out *strq;
strq = TAILQ_FIRST(&asoc->ss_data.out.wheel);
- TAILQ_REMOVE(&asoc->ss_data.out.wheel, strq,
ss_params.rr.next_spoke);
- strq->ss_params.rr.next_spoke.tqe_next = NULL;
- strq->ss_params.rr.next_spoke.tqe_prev = NULL;
+ TAILQ_REMOVE(&asoc->ss_data.out.wheel, strq,
ss_params.ss.rr.next_spoke);
+ strq->ss_params.scheduled = false;
}
asoc->ss_data.last_out_stream = NULL;
return;
@@ -99,8 +99,7 @@ sctp_ss_default_init_stream(struct sctp_tcb *stcb, struct
sctp_stream_out *strq,
stcb->asoc.ss_data.last_out_stream = strq;
}
}
- strq->ss_params.rr.next_spoke.tqe_next = NULL;
- strq->ss_params.rr.next_spoke.tqe_prev = NULL;
+ strq->ss_params.scheduled = false;
return;
}
@@ -112,23 +111,18 @@ sctp_ss_default_add(struct sctp_tcb *stcb, struct
sctp_association *asoc,
SCTP_TCB_SEND_LOCK_ASSERT(stcb);
/* Add to wheel if not already on it and stream queue not empty */
- if (!TAILQ_EMPTY(&strq->outqueue) &&
- (strq->ss_params.rr.next_spoke.tqe_next == NULL) &&
- (strq->ss_params.rr.next_spoke.tqe_prev == NULL)) {
+ if (!TAILQ_EMPTY(&strq->outqueue) && !strq->ss_params.scheduled) {
TAILQ_INSERT_TAIL(&asoc->ss_data.out.wheel,
- strq, ss_params.rr.next_spoke);
+ strq, ss_params.ss.rr.next_spoke);
+ strq->ss_params.scheduled = true;
}
return;
}
-static int
+static bool
sctp_ss_default_is_empty(struct sctp_tcb *stcb SCTP_UNUSED, struct
sctp_association *asoc)
{
- if (TAILQ_EMPTY(&asoc->ss_data.out.wheel)) {
- return (1);
- } else {
- return (0);
- }
+ return (TAILQ_EMPTY(&asoc->ss_data.out.wheel));
}
static void
@@ -142,13 +136,11 @@ sctp_ss_default_remove(struct sctp_tcb *stcb, struct
sctp_association *asoc,
* Remove from wheel if stream queue is empty and actually is on the
* wheel
*/
- if (TAILQ_EMPTY(&strq->outqueue) &&
- (strq->ss_params.rr.next_spoke.tqe_next != NULL ||
- strq->ss_params.rr.next_spoke.tqe_prev != NULL)) {
+ if (TAILQ_EMPTY(&strq->outqueue) && strq->ss_params.scheduled) {
if (asoc->ss_data.last_out_stream == strq) {
asoc->ss_data.last_out_stream =
TAILQ_PREV(asoc->ss_data.last_out_stream,
sctpwheel_listhead,
- ss_params.rr.next_spoke);
+ ss_params.ss.rr.next_spoke);
if (asoc->ss_data.last_out_stream == NULL) {
asoc->ss_data.last_out_stream =
TAILQ_LAST(&asoc->ss_data.out.wheel,
sctpwheel_listhead);
@@ -157,9 +149,8 @@ sctp_ss_default_remove(struct sctp_tcb *stcb, struct
sctp_association *asoc,
asoc->ss_data.last_out_stream = NULL;
}
}
- TAILQ_REMOVE(&asoc->ss_data.out.wheel, strq,
ss_params.rr.next_spoke);
- strq->ss_params.rr.next_spoke.tqe_next = NULL;
- strq->ss_params.rr.next_spoke.tqe_prev = NULL;
+ TAILQ_REMOVE(&asoc->ss_data.out.wheel, strq,
ss_params.ss.rr.next_spoke);
+ strq->ss_params.scheduled = false;
}
return;
}
@@ -179,7 +170,7 @@ default_again:
if (strqt == NULL) {
strq = TAILQ_FIRST(&asoc->ss_data.out.wheel);
} else {
- strq = TAILQ_NEXT(strqt, ss_params.rr.next_spoke);
+ strq = TAILQ_NEXT(strqt, ss_params.ss.rr.next_spoke);
if (strq == NULL) {
strq = TAILQ_FIRST(&asoc->ss_data.out.wheel);
}
@@ -257,24 +248,24 @@ sctp_ss_default_set_value(struct sctp_tcb *stcb
SCTP_UNUSED, struct sctp_associa
return (-1);
}
-static int
+static bool
sctp_ss_default_is_user_msgs_incomplete(struct sctp_tcb *stcb SCTP_UNUSED,
struct sctp_association *asoc)
{
struct sctp_stream_out *strq;
struct sctp_stream_queue_pending *sp;
if (asoc->stream_queue_cnt != 1) {
- return (0);
+ return (false);
}
strq = asoc->ss_data.locked_on_sending;
if (strq == NULL) {
- return (0);
+ return (false);
}
sp = TAILQ_FIRST(&strq->outqueue);
if (sp == NULL) {
- return (0);
+ return (false);
}
- return (!sp->msg_is_complete);
+ return (sp->msg_is_complete == 0);
}
/*
@@ -290,22 +281,21 @@ sctp_ss_rr_add(struct sctp_tcb *stcb, struct
sctp_association *asoc,
SCTP_TCB_SEND_LOCK_ASSERT(stcb);
- if (!TAILQ_EMPTY(&strq->outqueue) &&
- (strq->ss_params.rr.next_spoke.tqe_next == NULL) &&
- (strq->ss_params.rr.next_spoke.tqe_prev == NULL)) {
+ if (!TAILQ_EMPTY(&strq->outqueue) && !strq->ss_params.scheduled) {
if (TAILQ_EMPTY(&asoc->ss_data.out.wheel)) {
- TAILQ_INSERT_HEAD(&asoc->ss_data.out.wheel, strq,
ss_params.rr.next_spoke);
+ TAILQ_INSERT_HEAD(&asoc->ss_data.out.wheel, strq,
ss_params.ss.rr.next_spoke);
} else {
strqt = TAILQ_FIRST(&asoc->ss_data.out.wheel);
while (strqt != NULL && (strqt->sid < strq->sid)) {
- strqt = TAILQ_NEXT(strqt,
ss_params.rr.next_spoke);
+ strqt = TAILQ_NEXT(strqt,
ss_params.ss.rr.next_spoke);
}
if (strqt != NULL) {
- TAILQ_INSERT_BEFORE(strqt, strq,
ss_params.rr.next_spoke);
+ TAILQ_INSERT_BEFORE(strqt, strq,
ss_params.ss.rr.next_spoke);
} else {
- TAILQ_INSERT_TAIL(&asoc->ss_data.out.wheel,
strq, ss_params.rr.next_spoke);
+ TAILQ_INSERT_TAIL(&asoc->ss_data.out.wheel,
strq, ss_params.ss.rr.next_spoke);
}
}
+ strq->ss_params.scheduled = true;
}
return;
}
@@ -334,7 +324,7 @@ rrp_again:
if (strqt == NULL) {
strq = TAILQ_FIRST(&asoc->ss_data.out.wheel);
} else {
- strq = TAILQ_NEXT(strqt, ss_params.rr.next_spoke);
+ strq = TAILQ_NEXT(strqt, ss_params.ss.rr.next_spoke);
if (strq == NULL) {
strq = TAILQ_FIRST(&asoc->ss_data.out.wheel);
}
@@ -372,7 +362,7 @@ rrp_again:
*/
static void
sctp_ss_prio_clear(struct sctp_tcb *stcb, struct sctp_association *asoc,
- int clear_values)
+ bool clear_values)
{
SCTP_TCB_SEND_LOCK_ASSERT(stcb);
@@ -381,11 +371,10 @@ sctp_ss_prio_clear(struct sctp_tcb *stcb, struct
sctp_association *asoc,
strq = TAILQ_FIRST(&asoc->ss_data.out.wheel);
if (clear_values) {
- strq->ss_params.prio.priority = 0;
+ strq->ss_params.ss.prio.priority = 0;
}
- TAILQ_REMOVE(&asoc->ss_data.out.wheel, strq,
ss_params.prio.next_spoke);
- strq->ss_params.prio.next_spoke.tqe_next = NULL;
- strq->ss_params.prio.next_spoke.tqe_prev = NULL;
+ TAILQ_REMOVE(&asoc->ss_data.out.wheel, strq,
ss_params.ss.prio.next_spoke);
+ strq->ss_params.scheduled = false;
}
asoc->ss_data.last_out_stream = NULL;
return;
@@ -402,12 +391,11 @@ sctp_ss_prio_init_stream(struct sctp_tcb *stcb, struct
sctp_stream_out *strq, st
stcb->asoc.ss_data.last_out_stream = strq;
}
}
- strq->ss_params.prio.next_spoke.tqe_next = NULL;
- strq->ss_params.prio.next_spoke.tqe_prev = NULL;
+ strq->ss_params.scheduled = false;
if (with_strq != NULL) {
- strq->ss_params.prio.priority =
with_strq->ss_params.prio.priority;
+ strq->ss_params.ss.prio.priority =
with_strq->ss_params.ss.prio.priority;
} else {
- strq->ss_params.prio.priority = 0;
+ strq->ss_params.ss.prio.priority = 0;
}
return;
}
@@ -421,22 +409,21 @@ sctp_ss_prio_add(struct sctp_tcb *stcb, struct
sctp_association *asoc,
SCTP_TCB_SEND_LOCK_ASSERT(stcb);
/* Add to wheel if not already on it and stream queue not empty */
- if (!TAILQ_EMPTY(&strq->outqueue) &&
- (strq->ss_params.prio.next_spoke.tqe_next == NULL) &&
- (strq->ss_params.prio.next_spoke.tqe_prev == NULL)) {
+ if (!TAILQ_EMPTY(&strq->outqueue) && !strq->ss_params.scheduled) {
if (TAILQ_EMPTY(&asoc->ss_data.out.wheel)) {
- TAILQ_INSERT_HEAD(&asoc->ss_data.out.wheel, strq,
ss_params.prio.next_spoke);
+ TAILQ_INSERT_HEAD(&asoc->ss_data.out.wheel, strq,
ss_params.ss.prio.next_spoke);
} else {
strqt = TAILQ_FIRST(&asoc->ss_data.out.wheel);
- while (strqt != NULL && strqt->ss_params.prio.priority
< strq->ss_params.prio.priority) {
- strqt = TAILQ_NEXT(strqt,
ss_params.prio.next_spoke);
+ while (strqt != NULL &&
strqt->ss_params.ss.prio.priority < strq->ss_params.ss.prio.priority) {
+ strqt = TAILQ_NEXT(strqt,
ss_params.ss.prio.next_spoke);
}
if (strqt != NULL) {
- TAILQ_INSERT_BEFORE(strqt, strq,
ss_params.prio.next_spoke);
+ TAILQ_INSERT_BEFORE(strqt, strq,
ss_params.ss.prio.next_spoke);
} else {
- TAILQ_INSERT_TAIL(&asoc->ss_data.out.wheel,
strq, ss_params.prio.next_spoke);
+ TAILQ_INSERT_TAIL(&asoc->ss_data.out.wheel,
strq, ss_params.ss.prio.next_spoke);
}
}
+ strq->ss_params.scheduled = true;
}
return;
}
@@ -451,12 +438,11 @@ sctp_ss_prio_remove(struct sctp_tcb *stcb, struct
sctp_association *asoc,
* Remove from wheel if stream queue is empty and actually is on the
* wheel
*/
- if (TAILQ_EMPTY(&strq->outqueue) &&
- (strq->ss_params.prio.next_spoke.tqe_next != NULL ||
- strq->ss_params.prio.next_spoke.tqe_prev != NULL)) {
+ if (TAILQ_EMPTY(&strq->outqueue) && strq->ss_params.scheduled) {
if (asoc->ss_data.last_out_stream == strq) {
- asoc->ss_data.last_out_stream =
TAILQ_PREV(asoc->ss_data.last_out_stream, sctpwheel_listhead,
- ss_params.prio.next_spoke);
+ asoc->ss_data.last_out_stream =
TAILQ_PREV(asoc->ss_data.last_out_stream,
+ sctpwheel_listhead,
+ ss_params.ss.prio.next_spoke);
if (asoc->ss_data.last_out_stream == NULL) {
asoc->ss_data.last_out_stream =
TAILQ_LAST(&asoc->ss_data.out.wheel,
sctpwheel_listhead);
@@ -465,9 +451,8 @@ sctp_ss_prio_remove(struct sctp_tcb *stcb, struct
sctp_association *asoc,
asoc->ss_data.last_out_stream = NULL;
}
}
- TAILQ_REMOVE(&asoc->ss_data.out.wheel, strq,
ss_params.prio.next_spoke);
- strq->ss_params.prio.next_spoke.tqe_next = NULL;
- strq->ss_params.prio.next_spoke.tqe_prev = NULL;
+ TAILQ_REMOVE(&asoc->ss_data.out.wheel, strq,
ss_params.ss.prio.next_spoke);
+ strq->ss_params.scheduled = false;
}
return;
}
@@ -487,9 +472,9 @@ prio_again:
if (strqt == NULL) {
strq = TAILQ_FIRST(&asoc->ss_data.out.wheel);
} else {
- strqn = TAILQ_NEXT(strqt, ss_params.prio.next_spoke);
+ strqn = TAILQ_NEXT(strqt, ss_params.ss.prio.next_spoke);
if (strqn != NULL &&
- strqn->ss_params.prio.priority ==
strqt->ss_params.prio.priority) {
+ strqn->ss_params.ss.prio.priority ==
strqt->ss_params.ss.prio.priority) {
strq = strqn;
} else {
strq = TAILQ_FIRST(&asoc->ss_data.out.wheel);
@@ -528,7 +513,7 @@ sctp_ss_prio_get_value(struct sctp_tcb *stcb SCTP_UNUSED,
struct sctp_associatio
if (strq == NULL) {
return (-1);
}
- *value = strq->ss_params.prio.priority;
+ *value = strq->ss_params.ss.prio.priority;
return (1);
}
@@ -539,7 +524,7 @@ sctp_ss_prio_set_value(struct sctp_tcb *stcb, struct
sctp_association *asoc,
if (strq == NULL) {
return (-1);
}
- strq->ss_params.prio.priority = value;
+ strq->ss_params.ss.prio.priority = value;
sctp_ss_prio_remove(stcb, asoc, strq, NULL);
sctp_ss_prio_add(stcb, asoc, strq, NULL);
return (1);
@@ -551,7 +536,7 @@ sctp_ss_prio_set_value(struct sctp_tcb *stcb, struct
sctp_association *asoc,
*/
static void
sctp_ss_fb_clear(struct sctp_tcb *stcb, struct sctp_association *asoc,
- int clear_values)
+ bool clear_values)
{
SCTP_TCB_SEND_LOCK_ASSERT(stcb);
@@ -560,11 +545,10 @@ sctp_ss_fb_clear(struct sctp_tcb *stcb, struct
sctp_association *asoc,
strq = TAILQ_FIRST(&asoc->ss_data.out.wheel);
if (clear_values) {
- strq->ss_params.fb.rounds = -1;
+ strq->ss_params.ss.fb.rounds = -1;
}
- TAILQ_REMOVE(&asoc->ss_data.out.wheel, strq,
ss_params.fb.next_spoke);
- strq->ss_params.fb.next_spoke.tqe_next = NULL;
- strq->ss_params.fb.next_spoke.tqe_prev = NULL;
+ TAILQ_REMOVE(&asoc->ss_data.out.wheel, strq,
ss_params.ss.fb.next_spoke);
+ strq->ss_params.scheduled = false;
}
asoc->ss_data.last_out_stream = NULL;
return;
@@ -581,12 +565,11 @@ sctp_ss_fb_init_stream(struct sctp_tcb *stcb, struct
sctp_stream_out *strq, stru
stcb->asoc.ss_data.last_out_stream = strq;
}
}
- strq->ss_params.fb.next_spoke.tqe_next = NULL;
- strq->ss_params.fb.next_spoke.tqe_prev = NULL;
+ strq->ss_params.scheduled = false;
if (with_strq != NULL) {
- strq->ss_params.fb.rounds = with_strq->ss_params.fb.rounds;
+ strq->ss_params.ss.fb.rounds =
with_strq->ss_params.ss.fb.rounds;
} else {
- strq->ss_params.fb.rounds = -1;
+ strq->ss_params.ss.fb.rounds = -1;
}
return;
}
@@ -597,12 +580,11 @@ sctp_ss_fb_add(struct sctp_tcb *stcb, struct
sctp_association *asoc,
{
SCTP_TCB_SEND_LOCK_ASSERT(stcb);
- if (!TAILQ_EMPTY(&strq->outqueue) &&
- (strq->ss_params.fb.next_spoke.tqe_next == NULL) &&
- (strq->ss_params.fb.next_spoke.tqe_prev == NULL)) {
- if (strq->ss_params.fb.rounds < 0)
- strq->ss_params.fb.rounds =
TAILQ_FIRST(&strq->outqueue)->length;
- TAILQ_INSERT_TAIL(&asoc->ss_data.out.wheel, strq,
ss_params.fb.next_spoke);
+ if (!TAILQ_EMPTY(&strq->outqueue) && !strq->ss_params.scheduled) {
+ if (strq->ss_params.ss.fb.rounds < 0)
+ strq->ss_params.ss.fb.rounds =
TAILQ_FIRST(&strq->outqueue)->length;
+ TAILQ_INSERT_TAIL(&asoc->ss_data.out.wheel, strq,
ss_params.ss.fb.next_spoke);
+ strq->ss_params.scheduled = true;
}
return;
}
@@ -617,12 +599,11 @@ sctp_ss_fb_remove(struct sctp_tcb *stcb, struct
sctp_association *asoc,
* Remove from wheel if stream queue is empty and actually is on the
* wheel
*/
- if (TAILQ_EMPTY(&strq->outqueue) &&
- (strq->ss_params.fb.next_spoke.tqe_next != NULL ||
- strq->ss_params.fb.next_spoke.tqe_prev != NULL)) {
+ if (TAILQ_EMPTY(&strq->outqueue) && strq->ss_params.scheduled) {
if (asoc->ss_data.last_out_stream == strq) {
- asoc->ss_data.last_out_stream =
TAILQ_PREV(asoc->ss_data.last_out_stream, sctpwheel_listhead,
- ss_params.fb.next_spoke);
+ asoc->ss_data.last_out_stream =
TAILQ_PREV(asoc->ss_data.last_out_stream,
+ sctpwheel_listhead,
+ ss_params.ss.fb.next_spoke);
if (asoc->ss_data.last_out_stream == NULL) {
asoc->ss_data.last_out_stream =
TAILQ_LAST(&asoc->ss_data.out.wheel,
sctpwheel_listhead);
@@ -631,9 +612,8 @@ sctp_ss_fb_remove(struct sctp_tcb *stcb, struct
sctp_association *asoc,
asoc->ss_data.last_out_stream = NULL;
}
}
- TAILQ_REMOVE(&asoc->ss_data.out.wheel, strq,
ss_params.fb.next_spoke);
- strq->ss_params.fb.next_spoke.tqe_next = NULL;
- strq->ss_params.fb.next_spoke.tqe_prev = NULL;
+ TAILQ_REMOVE(&asoc->ss_data.out.wheel, strq,
ss_params.ss.fb.next_spoke);
+ strq->ss_params.scheduled = false;
}
return;
}
@@ -651,7 +631,7 @@ sctp_ss_fb_select(struct sctp_tcb *stcb SCTP_UNUSED, struct
sctp_nets *net,
TAILQ_FIRST(&asoc->ss_data.out.wheel) ==
TAILQ_LAST(&asoc->ss_data.out.wheel, sctpwheel_listhead)) {
strqt = TAILQ_FIRST(&asoc->ss_data.out.wheel);
} else {
- strqt = TAILQ_NEXT(asoc->ss_data.last_out_stream,
ss_params.fb.next_spoke);
+ strqt = TAILQ_NEXT(asoc->ss_data.last_out_stream,
ss_params.ss.fb.next_spoke);
}
do {
if ((strqt != NULL) &&
@@ -660,13 +640,14 @@ sctp_ss_fb_select(struct sctp_tcb *stcb SCTP_UNUSED,
struct sctp_nets *net,
(net == NULL || (TAILQ_FIRST(&strqt->outqueue) &&
TAILQ_FIRST(&strqt->outqueue)->net == NULL) ||
(net != NULL && TAILQ_FIRST(&strqt->outqueue) &&
TAILQ_FIRST(&strqt->outqueue)->net != NULL &&
TAILQ_FIRST(&strqt->outqueue)->net == net))))) {
- if ((strqt->ss_params.fb.rounds >= 0) && (strq == NULL
||
- strqt->ss_params.fb.rounds <
strq->ss_params.fb.rounds)) {
+ if ((strqt->ss_params.ss.fb.rounds >= 0) &&
+ ((strq == NULL) ||
+ (strqt->ss_params.ss.fb.rounds <
strq->ss_params.ss.fb.rounds))) {
strq = strqt;
}
}
if (strqt != NULL) {
- strqt = TAILQ_NEXT(strqt, ss_params.fb.next_spoke);
+ strqt = TAILQ_NEXT(strqt, ss_params.ss.fb.next_spoke);
} else {
strqt = TAILQ_FIRST(&asoc->ss_data.out.wheel);
}
@@ -693,16 +674,16 @@ sctp_ss_fb_scheduled(struct sctp_tcb *stcb, struct
sctp_nets *net SCTP_UNUSED,
} else {
stcb->asoc.ss_data.locked_on_sending = NULL;
}
- subtract = strq->ss_params.fb.rounds;
- TAILQ_FOREACH(strqt, &asoc->ss_data.out.wheel, ss_params.fb.next_spoke)
{
- strqt->ss_params.fb.rounds -= subtract;
- if (strqt->ss_params.fb.rounds < 0)
- strqt->ss_params.fb.rounds = 0;
+ subtract = strq->ss_params.ss.fb.rounds;
+ TAILQ_FOREACH(strqt, &asoc->ss_data.out.wheel,
ss_params.ss.fb.next_spoke) {
+ strqt->ss_params.ss.fb.rounds -= subtract;
+ if (strqt->ss_params.ss.fb.rounds < 0)
+ strqt->ss_params.ss.fb.rounds = 0;
}
if (TAILQ_FIRST(&strq->outqueue)) {
- strq->ss_params.fb.rounds =
TAILQ_FIRST(&strq->outqueue)->length;
+ strq->ss_params.ss.fb.rounds =
TAILQ_FIRST(&strq->outqueue)->length;
} else {
- strq->ss_params.fb.rounds = -1;
+ strq->ss_params.ss.fb.rounds = -1;
}
asoc->ss_data.last_out_stream = strq;
return;
@@ -754,7 +735,7 @@ sctp_ss_fcfs_init(struct sctp_tcb *stcb, struct
sctp_association *asoc)
static void
sctp_ss_fcfs_clear(struct sctp_tcb *stcb, struct sctp_association *asoc,
- int clear_values SCTP_UNUSED)
+ bool clear_values SCTP_UNUSED)
{
struct sctp_stream_queue_pending *sp;
@@ -763,8 +744,7 @@ sctp_ss_fcfs_clear(struct sctp_tcb *stcb, struct
sctp_association *asoc,
while (!TAILQ_EMPTY(&asoc->ss_data.out.list)) {
sp = TAILQ_FIRST(&asoc->ss_data.out.list);
TAILQ_REMOVE(&asoc->ss_data.out.list, sp, ss_next);
- sp->ss_next.tqe_next = NULL;
- sp->ss_next.tqe_prev = NULL;
+ sp->scheduled = false;
}
asoc->ss_data.last_out_stream = NULL;
return;
@@ -781,8 +761,7 @@ sctp_ss_fcfs_init_stream(struct sctp_tcb *stcb, struct
sctp_stream_out *strq, st
stcb->asoc.ss_data.last_out_stream = strq;
}
}
- strq->ss_params.fb.next_spoke.tqe_next = NULL;
- strq->ss_params.fb.next_spoke.tqe_prev = NULL;
+ strq->ss_params.scheduled = false;
return;
}
@@ -792,21 +771,17 @@ sctp_ss_fcfs_add(struct sctp_tcb *stcb, struct
sctp_association *asoc,
{
SCTP_TCB_SEND_LOCK_ASSERT(stcb);
- if (sp && (sp->ss_next.tqe_next == NULL) &&
- (sp->ss_next.tqe_prev == NULL)) {
+ if (!sp->scheduled) {
TAILQ_INSERT_TAIL(&asoc->ss_data.out.list, sp, ss_next);
+ sp->scheduled = true;
}
return;
}
-static int
+static bool
sctp_ss_fcfs_is_empty(struct sctp_tcb *stcb SCTP_UNUSED, struct
sctp_association *asoc)
{
- if (TAILQ_EMPTY(&asoc->ss_data.out.list)) {
- return (1);
- } else {
- return (0);
- }
+ return (TAILQ_EMPTY(&asoc->ss_data.out.list));
}
static void
@@ -815,12 +790,9 @@ sctp_ss_fcfs_remove(struct sctp_tcb *stcb, struct
sctp_association *asoc,
{
SCTP_TCB_SEND_LOCK_ASSERT(stcb);
- if (sp &&
- ((sp->ss_next.tqe_next != NULL) ||
- (sp->ss_next.tqe_prev != NULL))) {
+ if (sp->scheduled) {
TAILQ_REMOVE(&asoc->ss_data.out.list, sp, ss_next);
- sp->ss_next.tqe_next = NULL;
- sp->ss_next.tqe_prev = NULL;
+ sp->scheduled = false;
}
return;
}
diff --git a/sys/netinet/sctp_structs.h b/sys/netinet/sctp_structs.h
index 2f0ae4c45b24..026e3319dd23 100644
--- a/sys/netinet/sctp_structs.h
+++ b/sys/netinet/sctp_structs.h
@@ -505,6 +505,7 @@ struct sctp_queued_to_read { /* sinfo structure
Pluse more */
* the user is in the explict MSG_EOR mode
* and wrote some data, but has not completed
* sending.
+ * ss_next and scheduled are only used by the FCFS stream scheduler.
*/
struct sctp_stream_queue_pending {
struct mbuf *data;
@@ -529,6 +530,7 @@ struct sctp_stream_queue_pending {
uint8_t put_last_out;
uint8_t discard_rest;
uint8_t processing;
+ bool scheduled;
};
/*
@@ -588,10 +590,13 @@ struct ss_fb {
* This union holds all parameters per stream
* necessary for different stream schedulers.
*/
-union scheduling_parameters {
- struct ss_rr rr;
- struct ss_prio prio;
- struct ss_fb fb;
+struct scheduling_parameters {
+ union {
+ struct ss_rr rr;
+ struct ss_prio prio;
+ struct ss_fb fb;
+ } ss;
+ bool scheduled;
};
/* States for outgoing streams */
@@ -604,7 +609,7 @@ union scheduling_parameters {
/* This struct is used to track the traffic on outbound streams */
struct sctp_stream_out {
struct sctp_streamhead outqueue;
- union scheduling_parameters ss_params;
+ struct scheduling_parameters ss_params;
uint32_t chunks_on_queues; /* send queue and sent queue */
#if defined(SCTP_DETAILED_STR_STATS)
uint32_t abandoned_unsent[SCTP_PR_SCTP_MAX + 1];
@@ -731,11 +736,11 @@ struct sctp_cc_functions {
struct sctp_ss_functions {
void (*sctp_ss_init) (struct sctp_tcb *stcb, struct sctp_association
*asoc);
void (*sctp_ss_clear) (struct sctp_tcb *stcb, struct sctp_association
*asoc,
- int clear_values);
+ bool clear_values);
void (*sctp_ss_init_stream) (struct sctp_tcb *stcb, struct
sctp_stream_out *strq, struct sctp_stream_out *with_strq);
void (*sctp_ss_add_to_stream) (struct sctp_tcb *stcb, struct
sctp_association *asoc,
struct sctp_stream_out *strq, struct sctp_stream_queue_pending *sp);
- int (*sctp_ss_is_empty) (struct sctp_tcb *stcb, struct sctp_association
*asoc);
+ bool (*sctp_ss_is_empty) (struct sctp_tcb *stcb, struct
sctp_association *asoc);
void (*sctp_ss_remove_from_stream) (struct sctp_tcb *stcb, struct
sctp_association *asoc,
struct sctp_stream_out *strq, struct sctp_stream_queue_pending *sp);
struct sctp_stream_out *(*sctp_ss_select_stream) (struct sctp_tcb *stcb,
@@ -748,7 +753,7 @@ struct sctp_stream_out *(*sctp_ss_select_stream) (struct
sctp_tcb *stcb,
struct sctp_stream_out *strq, uint16_t *value);
int (*sctp_ss_set_value) (struct sctp_tcb *stcb, struct
sctp_association *asoc,
struct sctp_stream_out *strq, uint16_t value);
- int (*sctp_ss_is_user_msgs_incomplete) (struct sctp_tcb *stcb, struct
sctp_association *asoc);
+ bool (*sctp_ss_is_user_msgs_incomplete) (struct sctp_tcb *stcb, struct
sctp_association *asoc);
};
/* used to save ASCONF chunks for retransmission */
diff --git a/sys/netinet/sctp_usrreq.c b/sys/netinet/sctp_usrreq.c
index 65037f0734ea..b2d23bffb9fd 100644
--- a/sys/netinet/sctp_usrreq.c
+++ b/sys/netinet/sctp_usrreq.c
@@ -4043,7 +4043,7 @@ sctp_setopt(struct socket *so, int optname, void *optval,
size_t optsize,
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
SCTP_TCB_SEND_LOCK(stcb);
- stcb->asoc.ss_functions.sctp_ss_clear(stcb,
&stcb->asoc, 1);
+ stcb->asoc.ss_functions.sctp_ss_clear(stcb,
&stcb->asoc, true);
stcb->asoc.ss_functions =
sctp_ss_functions[av->assoc_value];
stcb->asoc.stream_scheduling_module =
av->assoc_value;
stcb->asoc.ss_functions.sctp_ss_init(stcb,
&stcb->asoc);
@@ -4066,7 +4066,7 @@ sctp_setopt(struct socket *so, int optname, void *optval,
size_t optsize,
LIST_FOREACH(stcb,
&inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
SCTP_TCB_SEND_LOCK(stcb);
-
stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1);
+
stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
stcb->asoc.ss_functions =
sctp_ss_functions[av->assoc_value];
stcb->asoc.stream_scheduling_module = av->assoc_value;
stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
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