mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-29 23:53:32 +00:00
af094824f2
If CONFIG_AF_RXRPC_DEBUG_RX_DELAY=y, then a delay is injected between packets and errors being received and them being made available to the processing code, thereby allowing the RTT to be artificially increased. Signed-off-by: David Howells <dhowells@redhat.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: linux-afs@lists.infradead.org
62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/* Miscellaneous bits
|
|
*
|
|
* Copyright (C) 2016 Red Hat, Inc. All Rights Reserved.
|
|
* Written by David Howells (dhowells@redhat.com)
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <net/sock.h>
|
|
#include <net/af_rxrpc.h>
|
|
#include "ar-internal.h"
|
|
|
|
/*
|
|
* The maximum listening backlog queue size that may be set on a socket by
|
|
* listen().
|
|
*/
|
|
unsigned int rxrpc_max_backlog __read_mostly = 10;
|
|
|
|
/*
|
|
* How long to wait before scheduling an ACK with subtype DELAY (in jiffies).
|
|
*
|
|
* We use this when we've received new data packets. If those packets aren't
|
|
* all consumed within this time we will send a DELAY ACK if an ACK was not
|
|
* requested to let the sender know it doesn't need to resend.
|
|
*/
|
|
unsigned long rxrpc_soft_ack_delay = HZ;
|
|
|
|
/*
|
|
* How long to wait before scheduling an ACK with subtype IDLE (in jiffies).
|
|
*
|
|
* We use this when we've consumed some previously soft-ACK'd packets when
|
|
* further packets aren't immediately received to decide when to send an IDLE
|
|
* ACK let the other end know that it can free up its Tx buffer space.
|
|
*/
|
|
unsigned long rxrpc_idle_ack_delay = HZ / 2;
|
|
|
|
/*
|
|
* Receive window size in packets. This indicates the maximum number of
|
|
* unconsumed received packets we're willing to retain in memory. Once this
|
|
* limit is hit, we should generate an EXCEEDS_WINDOW ACK and discard further
|
|
* packets.
|
|
*/
|
|
unsigned int rxrpc_rx_window_size = 255;
|
|
|
|
/*
|
|
* Maximum Rx MTU size. This indicates to the sender the size of jumbo packet
|
|
* made by gluing normal packets together that we're willing to handle.
|
|
*/
|
|
unsigned int rxrpc_rx_mtu = 5692;
|
|
|
|
/*
|
|
* The maximum number of fragments in a received jumbo packet that we tell the
|
|
* sender that we're willing to handle.
|
|
*/
|
|
unsigned int rxrpc_rx_jumbo_max = 4;
|
|
|
|
#ifdef CONFIG_AF_RXRPC_INJECT_RX_DELAY
|
|
/*
|
|
* The delay to inject into packet reception.
|
|
*/
|
|
unsigned long rxrpc_inject_rx_delay;
|
|
#endif
|