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-rw-r--r--net/rxrpc/ar-internal.h2
-rw-r--r--net/rxrpc/call_object.c7
-rw-r--r--net/rxrpc/conn_event.c16
-rw-r--r--net/rxrpc/conn_object.c9
-rw-r--r--net/rxrpc/input.c71
-rw-r--r--net/rxrpc/output.c14
-rw-r--r--net/rxrpc/protocol.h6
7 files changed, 68 insertions, 57 deletions
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 7818aae1be..4301dd20b4 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -692,7 +692,7 @@ struct rxrpc_call {
* packets) rather than bytes.
*/
#define RXRPC_TX_SMSS RXRPC_JUMBO_DATALEN
-#define RXRPC_MIN_CWND (RXRPC_TX_SMSS > 2190 ? 2 : RXRPC_TX_SMSS > 1095 ? 3 : 4)
+#define RXRPC_MIN_CWND 4
u8 cong_cwnd; /* Congestion window size */
u8 cong_extra; /* Extra to send for congestion management */
u8 cong_ssthresh; /* Slow-start threshold */
diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index 9fc9a6c3f6..3847b14af7 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -175,12 +175,7 @@ struct rxrpc_call *rxrpc_alloc_call(struct rxrpc_sock *rx, gfp_t gfp,
call->rx_winsize = rxrpc_rx_window_size;
call->tx_winsize = 16;
- if (RXRPC_TX_SMSS > 2190)
- call->cong_cwnd = 2;
- else if (RXRPC_TX_SMSS > 1095)
- call->cong_cwnd = 3;
- else
- call->cong_cwnd = 4;
+ call->cong_cwnd = RXRPC_MIN_CWND;
call->cong_ssthresh = RXRPC_TX_MAX_WINDOW;
call->rxnet = rxnet;
diff --git a/net/rxrpc/conn_event.c b/net/rxrpc/conn_event.c
index 1f251d758c..598b4ee389 100644
--- a/net/rxrpc/conn_event.c
+++ b/net/rxrpc/conn_event.c
@@ -88,7 +88,7 @@ void rxrpc_conn_retransmit_call(struct rxrpc_connection *conn,
struct rxrpc_ackpacket ack;
};
} __attribute__((packed)) pkt;
- struct rxrpc_ackinfo ack_info;
+ struct rxrpc_acktrailer trailer;
size_t len;
int ret, ioc;
u32 serial, mtu, call_id, padding;
@@ -122,8 +122,8 @@ void rxrpc_conn_retransmit_call(struct rxrpc_connection *conn,
iov[0].iov_len = sizeof(pkt.whdr);
iov[1].iov_base = &padding;
iov[1].iov_len = 3;
- iov[2].iov_base = &ack_info;
- iov[2].iov_len = sizeof(ack_info);
+ iov[2].iov_base = &trailer;
+ iov[2].iov_len = sizeof(trailer);
serial = rxrpc_get_next_serial(conn);
@@ -158,14 +158,14 @@ void rxrpc_conn_retransmit_call(struct rxrpc_connection *conn,
pkt.ack.serial = htonl(skb ? sp->hdr.serial : 0);
pkt.ack.reason = skb ? RXRPC_ACK_DUPLICATE : RXRPC_ACK_IDLE;
pkt.ack.nAcks = 0;
- ack_info.rxMTU = htonl(rxrpc_rx_mtu);
- ack_info.maxMTU = htonl(mtu);
- ack_info.rwind = htonl(rxrpc_rx_window_size);
- ack_info.jumbo_max = htonl(rxrpc_rx_jumbo_max);
+ trailer.maxMTU = htonl(rxrpc_rx_mtu);
+ trailer.ifMTU = htonl(mtu);
+ trailer.rwind = htonl(rxrpc_rx_window_size);
+ trailer.jumbo_max = htonl(rxrpc_rx_jumbo_max);
pkt.whdr.flags |= RXRPC_SLOW_START_OK;
padding = 0;
iov[0].iov_len += sizeof(pkt.ack);
- len += sizeof(pkt.ack) + 3 + sizeof(ack_info);
+ len += sizeof(pkt.ack) + 3 + sizeof(trailer);
ioc = 3;
trace_rxrpc_tx_ack(chan->call_debug_id, serial,
diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c
index df8a271948..7aa58129ae 100644
--- a/net/rxrpc/conn_object.c
+++ b/net/rxrpc/conn_object.c
@@ -118,18 +118,13 @@ struct rxrpc_connection *rxrpc_find_client_connection_rcu(struct rxrpc_local *lo
switch (srx->transport.family) {
case AF_INET:
if (peer->srx.transport.sin.sin_port !=
- srx->transport.sin.sin_port ||
- peer->srx.transport.sin.sin_addr.s_addr !=
- srx->transport.sin.sin_addr.s_addr)
+ srx->transport.sin.sin_port)
goto not_found;
break;
#ifdef CONFIG_AF_RXRPC_IPV6
case AF_INET6:
if (peer->srx.transport.sin6.sin6_port !=
- srx->transport.sin6.sin6_port ||
- memcmp(&peer->srx.transport.sin6.sin6_addr,
- &srx->transport.sin6.sin6_addr,
- sizeof(struct in6_addr)) != 0)
+ srx->transport.sin6.sin6_port)
goto not_found;
break;
#endif
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 9691de00ad..5dfda1ac51 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -9,6 +9,17 @@
#include "ar-internal.h"
+/* Override priority when generating ACKs for received DATA */
+static const u8 rxrpc_ack_priority[RXRPC_ACK__INVALID] = {
+ [RXRPC_ACK_IDLE] = 1,
+ [RXRPC_ACK_DELAY] = 2,
+ [RXRPC_ACK_REQUESTED] = 3,
+ [RXRPC_ACK_DUPLICATE] = 4,
+ [RXRPC_ACK_EXCEEDS_WINDOW] = 5,
+ [RXRPC_ACK_NOSPACE] = 6,
+ [RXRPC_ACK_OUT_OF_SEQUENCE] = 7,
+};
+
static void rxrpc_proto_abort(struct rxrpc_call *call, rxrpc_seq_t seq,
enum rxrpc_abort_reason why)
{
@@ -366,7 +377,7 @@ static void rxrpc_input_queue_data(struct rxrpc_call *call, struct sk_buff *skb,
* Process a DATA packet.
*/
static void rxrpc_input_data_one(struct rxrpc_call *call, struct sk_buff *skb,
- bool *_notify)
+ bool *_notify, rxrpc_serial_t *_ack_serial, int *_ack_reason)
{
struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
struct sk_buff *oos;
@@ -419,8 +430,6 @@ static void rxrpc_input_data_one(struct rxrpc_call *call, struct sk_buff *skb,
/* Send an immediate ACK if we fill in a hole */
else if (!skb_queue_empty(&call->rx_oos_queue))
ack_reason = RXRPC_ACK_DELAY;
- else
- call->ackr_nr_unacked++;
window++;
if (after(window, wtop)) {
@@ -498,12 +507,16 @@ static void rxrpc_input_data_one(struct rxrpc_call *call, struct sk_buff *skb,
}
send_ack:
- if (ack_reason >= 0)
- rxrpc_send_ACK(call, ack_reason, serial,
- rxrpc_propose_ack_input_data);
- else
- rxrpc_propose_delay_ACK(call, serial,
- rxrpc_propose_ack_input_data);
+ if (ack_reason >= 0) {
+ if (rxrpc_ack_priority[ack_reason] > rxrpc_ack_priority[*_ack_reason]) {
+ *_ack_serial = serial;
+ *_ack_reason = ack_reason;
+ } else if (rxrpc_ack_priority[ack_reason] == rxrpc_ack_priority[*_ack_reason] &&
+ ack_reason == RXRPC_ACK_REQUESTED) {
+ *_ack_serial = serial;
+ *_ack_reason = ack_reason;
+ }
+ }
}
/*
@@ -514,9 +527,11 @@ static bool rxrpc_input_split_jumbo(struct rxrpc_call *call, struct sk_buff *skb
struct rxrpc_jumbo_header jhdr;
struct rxrpc_skb_priv *sp = rxrpc_skb(skb), *jsp;
struct sk_buff *jskb;
+ rxrpc_serial_t ack_serial = 0;
unsigned int offset = sizeof(struct rxrpc_wire_header);
unsigned int len = skb->len - offset;
bool notify = false;
+ int ack_reason = 0;
while (sp->hdr.flags & RXRPC_JUMBO_PACKET) {
if (len < RXRPC_JUMBO_SUBPKTLEN)
@@ -536,7 +551,7 @@ static bool rxrpc_input_split_jumbo(struct rxrpc_call *call, struct sk_buff *skb
jsp = rxrpc_skb(jskb);
jsp->offset = offset;
jsp->len = RXRPC_JUMBO_DATALEN;
- rxrpc_input_data_one(call, jskb, &notify);
+ rxrpc_input_data_one(call, jskb, &notify, &ack_serial, &ack_reason);
rxrpc_free_skb(jskb, rxrpc_skb_put_jumbo_subpacket);
sp->hdr.flags = jhdr.flags;
@@ -549,7 +564,16 @@ static bool rxrpc_input_split_jumbo(struct rxrpc_call *call, struct sk_buff *skb
sp->offset = offset;
sp->len = len;
- rxrpc_input_data_one(call, skb, &notify);
+ rxrpc_input_data_one(call, skb, &notify, &ack_serial, &ack_reason);
+
+ if (ack_reason > 0) {
+ rxrpc_send_ACK(call, ack_reason, ack_serial,
+ rxrpc_propose_ack_input_data);
+ } else {
+ call->ackr_nr_unacked++;
+ rxrpc_propose_delay_ACK(call, sp->hdr.serial,
+ rxrpc_propose_ack_input_data);
+ }
if (notify) {
trace_rxrpc_notify_socket(call->debug_id, sp->hdr.serial);
rxrpc_notify_socket(call);
@@ -670,14 +694,14 @@ static void rxrpc_complete_rtt_probe(struct rxrpc_call *call,
/*
* Process the extra information that may be appended to an ACK packet
*/
-static void rxrpc_input_ackinfo(struct rxrpc_call *call, struct sk_buff *skb,
- struct rxrpc_ackinfo *ackinfo)
+static void rxrpc_input_ack_trailer(struct rxrpc_call *call, struct sk_buff *skb,
+ struct rxrpc_acktrailer *trailer)
{
struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
struct rxrpc_peer *peer;
unsigned int mtu;
bool wake = false;
- u32 rwind = ntohl(ackinfo->rwind);
+ u32 rwind = ntohl(trailer->rwind);
if (rwind > RXRPC_TX_MAX_WINDOW)
rwind = RXRPC_TX_MAX_WINDOW;
@@ -688,10 +712,7 @@ static void rxrpc_input_ackinfo(struct rxrpc_call *call, struct sk_buff *skb,
call->tx_winsize = rwind;
}
- if (call->cong_ssthresh > rwind)
- call->cong_ssthresh = rwind;
-
- mtu = min(ntohl(ackinfo->rxMTU), ntohl(ackinfo->maxMTU));
+ mtu = min(ntohl(trailer->maxMTU), ntohl(trailer->ifMTU));
peer = call->peer;
if (mtu < peer->maxdata) {
@@ -837,7 +858,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
struct rxrpc_ack_summary summary = { 0 };
struct rxrpc_ackpacket ack;
struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
- struct rxrpc_ackinfo info;
+ struct rxrpc_acktrailer trailer;
rxrpc_serial_t ack_serial, acked_serial;
rxrpc_seq_t first_soft_ack, hard_ack, prev_pkt, since;
int nr_acks, offset, ioffset;
@@ -917,11 +938,11 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
goto send_response;
}
- info.rxMTU = 0;
+ trailer.maxMTU = 0;
ioffset = offset + nr_acks + 3;
- if (skb->len >= ioffset + sizeof(info) &&
- skb_copy_bits(skb, ioffset, &info, sizeof(info)) < 0)
- return rxrpc_proto_abort(call, 0, rxrpc_badmsg_short_ack_info);
+ if (skb->len >= ioffset + sizeof(trailer) &&
+ skb_copy_bits(skb, ioffset, &trailer, sizeof(trailer)) < 0)
+ return rxrpc_proto_abort(call, 0, rxrpc_badmsg_short_ack_trailer);
if (nr_acks > 0)
skb_condense(skb);
@@ -950,8 +971,8 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
}
/* Parse rwind and mtu sizes if provided. */
- if (info.rxMTU)
- rxrpc_input_ackinfo(call, skb, &info);
+ if (trailer.maxMTU)
+ rxrpc_input_ack_trailer(call, skb, &trailer);
if (first_soft_ack == 0)
return rxrpc_proto_abort(call, 0, rxrpc_eproto_ackr_zero);
diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c
index 4a292f860a..cad6a7d18e 100644
--- a/net/rxrpc/output.c
+++ b/net/rxrpc/output.c
@@ -83,7 +83,7 @@ static size_t rxrpc_fill_out_ack(struct rxrpc_connection *conn,
struct rxrpc_txbuf *txb,
u16 *_rwind)
{
- struct rxrpc_ackinfo ackinfo;
+ struct rxrpc_acktrailer trailer;
unsigned int qsize, sack, wrap, to;
rxrpc_seq_t window, wtop;
int rsize;
@@ -126,16 +126,16 @@ static size_t rxrpc_fill_out_ack(struct rxrpc_connection *conn,
qsize = (window - 1) - call->rx_consumed;
rsize = max_t(int, call->rx_winsize - qsize, 0);
*_rwind = rsize;
- ackinfo.rxMTU = htonl(rxrpc_rx_mtu);
- ackinfo.maxMTU = htonl(mtu);
- ackinfo.rwind = htonl(rsize);
- ackinfo.jumbo_max = htonl(jmax);
+ trailer.maxMTU = htonl(rxrpc_rx_mtu);
+ trailer.ifMTU = htonl(mtu);
+ trailer.rwind = htonl(rsize);
+ trailer.jumbo_max = htonl(jmax);
*ackp++ = 0;
*ackp++ = 0;
*ackp++ = 0;
- memcpy(ackp, &ackinfo, sizeof(ackinfo));
- return txb->ack.nAcks + 3 + sizeof(ackinfo);
+ memcpy(ackp, &trailer, sizeof(trailer));
+ return txb->ack.nAcks + 3 + sizeof(trailer);
}
/*
diff --git a/net/rxrpc/protocol.h b/net/rxrpc/protocol.h
index e8ee4af43c..4fe6b4d20a 100644
--- a/net/rxrpc/protocol.h
+++ b/net/rxrpc/protocol.h
@@ -135,9 +135,9 @@ struct rxrpc_ackpacket {
/*
* ACK packets can have a further piece of information tagged on the end
*/
-struct rxrpc_ackinfo {
- __be32 rxMTU; /* maximum Rx MTU size (bytes) [AFS 3.3] */
- __be32 maxMTU; /* maximum interface MTU size (bytes) [AFS 3.3] */
+struct rxrpc_acktrailer {
+ __be32 maxMTU; /* maximum Rx MTU size (bytes) [AFS 3.3] */
+ __be32 ifMTU; /* maximum interface MTU size (bytes) [AFS 3.3] */
__be32 rwind; /* Rx window size (packets) [AFS 3.4] */
__be32 jumbo_max; /* max packets to stick into a jumbo packet [AFS 3.5] */
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-14 13:30:42 +0000