-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2011, 2012, Intel Corporation.
*
* Author: Eric Barton <eric@bartonsoftware.com>
*
#include "socklnd.h"
-static int sock_timeout = 50;
-CFS_MODULE_PARM(sock_timeout, "i", int, 0644,
- "dead socket timeout (seconds)");
+#include <linux/kvm_host.h>
+#if defined(__x86_64__) || defined(__i386__)
+#include <asm/hypervisor.h>
+#endif
+
+static int sock_timeout;
+module_param(sock_timeout, int, 0644);
+MODULE_PARM_DESC(sock_timeout, "dead socket timeout (seconds)");
+
+static int credits = DEFAULT_CREDITS;
+module_param(credits, int, 0444);
+MODULE_PARM_DESC(credits, "# concurrent sends");
+
+static int peer_credits = DEFAULT_PEER_CREDITS;
+module_param(peer_credits, int, 0444);
+MODULE_PARM_DESC(peer_credits, "# concurrent sends to 1 peer");
-static int credits = 256;
-CFS_MODULE_PARM(credits, "i", int, 0444,
- "# concurrent sends");
+static int peer_buffer_credits;
+module_param(peer_buffer_credits, int, 0444);
+MODULE_PARM_DESC(peer_buffer_credits, "# per-peer router buffer credits");
-static int peer_credits = 8;
-CFS_MODULE_PARM(peer_credits, "i", int, 0444,
- "# concurrent sends to 1 peer");
+static int peer_timeout = DEFAULT_PEER_TIMEOUT;
+module_param(peer_timeout, int, 0444);
+MODULE_PARM_DESC(peer_timeout, "Seconds without aliveness news to declare peer dead (<=0 to disable)");
-static int peer_timeout = 0;
-CFS_MODULE_PARM(peer_timeout, "i", int, 0444,
- "Seconds without aliveness news to declare peer dead (<=0 to disable)");
+/* Number of daemons in each thread pool which is percpt,
+ * we will estimate reasonable value based on CPUs if it's not set. */
+static unsigned int nscheds;
+module_param(nscheds, int, 0444);
+MODULE_PARM_DESC(nscheds, "# scheduler daemons in each pool while starting");
static int nconnds = 4;
-CFS_MODULE_PARM(nconnds, "i", int, 0444,
- "# connection daemons");
+module_param(nconnds, int, 0444);
+MODULE_PARM_DESC(nconnds, "# connection daemons while starting");
+
+static int nconnds_max = 64;
+module_param(nconnds_max, int, 0444);
+MODULE_PARM_DESC(nconnds_max, "max # connection daemons");
static int min_reconnectms = 1000;
-CFS_MODULE_PARM(min_reconnectms, "i", int, 0644,
- "min connection retry interval (mS)");
+module_param(min_reconnectms, int, 0644);
+MODULE_PARM_DESC(min_reconnectms, "min connection retry interval (mS)");
static int max_reconnectms = 60000;
-CFS_MODULE_PARM(max_reconnectms, "i", int, 0644,
- "max connection retry interval (mS)");
+module_param(max_reconnectms, int, 0644);
+MODULE_PARM_DESC(max_reconnectms, "max connection retry interval (mS)");
-#if defined(__APPLE__) && !defined(__DARWIN8__)
-# define DEFAULT_EAGER_ACK 1
-#else
-# define DEFAULT_EAGER_ACK 0
-#endif
-static int eager_ack = DEFAULT_EAGER_ACK;
-CFS_MODULE_PARM(eager_ack, "i", int, 0644,
- "send tcp ack packets eagerly");
+static int eager_ack;
+module_param(eager_ack, int, 0644);
+MODULE_PARM_DESC(eager_ack, "send tcp ack packets eagerly");
static int typed_conns = 1;
-CFS_MODULE_PARM(typed_conns, "i", int, 0444,
- "use different sockets for bulk");
+module_param(typed_conns, int, 0444);
+MODULE_PARM_DESC(typed_conns, "use different sockets for bulk");
static int min_bulk = (1<<10);
-CFS_MODULE_PARM(min_bulk, "i", int, 0644,
- "smallest 'large' message");
-
-#ifdef __APPLE__
-# ifdef __DARWIN8__
-# define DEFAULT_BUFFER_SIZE (224*1024)
-# else
-# define DEFAULT_BUFFER_SIZE (1152 * 1024)
-# endif
-#else
+module_param(min_bulk, int, 0644);
+MODULE_PARM_DESC(min_bulk, "smallest 'large' message");
+
# define DEFAULT_BUFFER_SIZE 0
-#endif
static int tx_buffer_size = DEFAULT_BUFFER_SIZE;
-CFS_MODULE_PARM(tx_buffer_size, "i", int, 0644,
- "socket tx buffer size (0 for system default)");
+module_param(tx_buffer_size, int, 0644);
+MODULE_PARM_DESC(tx_buffer_size, "socket tx buffer size (0 for system default)");
static int rx_buffer_size = DEFAULT_BUFFER_SIZE;
-CFS_MODULE_PARM(rx_buffer_size, "i", int, 0644,
- "socket rx buffer size (0 for system default)");
+module_param(rx_buffer_size, int, 0644);
+MODULE_PARM_DESC(rx_buffer_size, "socket rx buffer size (0 for system default)");
static int nagle = 0;
-CFS_MODULE_PARM(nagle, "i", int, 0644,
- "enable NAGLE?");
+module_param(nagle, int, 0644);
+MODULE_PARM_DESC(nagle, "enable NAGLE?");
static int round_robin = 1;
-CFS_MODULE_PARM(round_robin, "i", int, 0644,
- "Round robin for multiple interfaces");
+module_param(round_robin, int, 0644);
+MODULE_PARM_DESC(round_robin, "Round robin for multiple interfaces");
static int keepalive = 30;
-CFS_MODULE_PARM(keepalive, "i", int, 0644,
- "# seconds before send keepalive");
+module_param(keepalive, int, 0644);
+MODULE_PARM_DESC(keepalive, "# seconds before send keepalive");
static int keepalive_idle = 30;
-CFS_MODULE_PARM(keepalive_idle, "i", int, 0644,
- "# idle seconds before probe");
+module_param(keepalive_idle, int, 0644);
+MODULE_PARM_DESC(keepalive_idle, "# idle seconds before probe");
-#ifdef HAVE_BGL_SUPPORT
-#define DEFAULT_KEEPALIVE_COUNT 100
-#else
#define DEFAULT_KEEPALIVE_COUNT 5
-#endif
static int keepalive_count = DEFAULT_KEEPALIVE_COUNT;
-CFS_MODULE_PARM(keepalive_count, "i", int, 0644,
- "# missed probes == dead");
+module_param(keepalive_count, int, 0644);
+MODULE_PARM_DESC(keepalive_count, "# missed probes == dead");
static int keepalive_intvl = 5;
-CFS_MODULE_PARM(keepalive_intvl, "i", int, 0644,
- "seconds between probes");
+module_param(keepalive_intvl, int, 0644);
+MODULE_PARM_DESC(keepalive_intvl, "seconds between probes");
static int enable_csum = 0;
-CFS_MODULE_PARM(enable_csum, "i", int, 0644,
- "enable check sum");
+module_param(enable_csum, int, 0644);
+MODULE_PARM_DESC(enable_csum, "enable check sum");
static int inject_csum_error = 0;
-CFS_MODULE_PARM(inject_csum_error, "i", int, 0644,
- "set non-zero to inject a checksum error");
-#ifdef CPU_AFFINITY
+module_param(inject_csum_error, int, 0644);
+MODULE_PARM_DESC(inject_csum_error, "set non-zero to inject a checksum error");
+
static int enable_irq_affinity = 0;
-CFS_MODULE_PARM(enable_irq_affinity, "i", int, 0644,
- "enable IRQ affinity");
-#endif
+module_param(enable_irq_affinity, int, 0644);
+MODULE_PARM_DESC(enable_irq_affinity, "enable IRQ affinity");
+
+static int nonblk_zcack = 1;
+module_param(nonblk_zcack, int, 0644);
+MODULE_PARM_DESC(nonblk_zcack, "always send ZC-ACK on non-blocking connection");
static unsigned int zc_min_payload = (16 << 10);
-CFS_MODULE_PARM(zc_min_payload, "i", int, 0644,
- "minimum payload size to zero copy");
+module_param(zc_min_payload, int, 0644);
+MODULE_PARM_DESC(zc_min_payload, "minimum payload size to zero copy");
static unsigned int zc_recv = 0;
-CFS_MODULE_PARM(zc_recv, "i", int, 0644,
- "enable ZC recv for Chelsio driver");
+module_param(zc_recv, int, 0644);
+MODULE_PARM_DESC(zc_recv, "enable ZC recv for Chelsio driver");
static unsigned int zc_recv_min_nfrags = 16;
-CFS_MODULE_PARM(zc_recv_min_nfrags, "i", int, 0644,
- "minimum # of fragments to enable ZC recv");
+module_param(zc_recv_min_nfrags, int, 0644);
+MODULE_PARM_DESC(zc_recv_min_nfrags, "minimum # of fragments to enable ZC recv");
+
+static unsigned int conns_per_peer = 1;
+module_param(conns_per_peer, uint, 0444);
+MODULE_PARM_DESC(conns_per_peer, "number of connections per peer");
#ifdef SOCKNAL_BACKOFF
static int backoff_init = 3;
-CFS_MODULE_PARM(backoff_init, "i", int, 0644,
- "seconds for initial tcp backoff");
+module_param(backoff_init, int, 0644);
+MODULE_PARM_DESC(backoff_init, "seconds for initial tcp backoff");
static int backoff_max = 3;
-CFS_MODULE_PARM(backoff_max, "i", int, 0644,
- "seconds for maximum tcp backoff");
+module_param(backoff_max, int, 0644);
+MODULE_PARM_DESC(backoff_max, "seconds for maximum tcp backoff");
#endif
#if SOCKNAL_VERSION_DEBUG
static int protocol = 3;
-CFS_MODULE_PARM(protocol, "i", int, 0644,
- "protocol version");
+module_param(protocol, int, 0644);
+MODULE_PARM_DESC(protocol, "protocol version");
#endif
-ksock_tunables_t ksocknal_tunables;
+static inline bool is_native_host(void)
+{
+#ifdef HAVE_HYPERVISOR_IS_TYPE
+ return hypervisor_is_type(X86_HYPER_NATIVE);
+#elif defined(__x86_64__) || defined(__i386__)
+ return x86_hyper == NULL;
+#else
+ return true;
+#endif
+}
+
+struct ksock_tunables ksocknal_tunables;
int ksocknal_tunables_init(void)
{
-
- /* initialize ksocknal_tunables structure */
- ksocknal_tunables.ksnd_timeout = &sock_timeout;
- ksocknal_tunables.ksnd_nconnds = &nconnds;
- ksocknal_tunables.ksnd_min_reconnectms = &min_reconnectms;
- ksocknal_tunables.ksnd_max_reconnectms = &max_reconnectms;
- ksocknal_tunables.ksnd_eager_ack = &eager_ack;
- ksocknal_tunables.ksnd_typed_conns = &typed_conns;
- ksocknal_tunables.ksnd_min_bulk = &min_bulk;
- ksocknal_tunables.ksnd_tx_buffer_size = &tx_buffer_size;
- ksocknal_tunables.ksnd_rx_buffer_size = &rx_buffer_size;
- ksocknal_tunables.ksnd_nagle = &nagle;
- ksocknal_tunables.ksnd_round_robin = &round_robin;
- ksocknal_tunables.ksnd_keepalive = &keepalive;
- ksocknal_tunables.ksnd_keepalive_idle = &keepalive_idle;
- ksocknal_tunables.ksnd_keepalive_count = &keepalive_count;
- ksocknal_tunables.ksnd_keepalive_intvl = &keepalive_intvl;
- ksocknal_tunables.ksnd_credits = &credits;
- ksocknal_tunables.ksnd_peercredits = &peer_credits;
- ksocknal_tunables.ksnd_peertimeout = &peer_timeout;
- ksocknal_tunables.ksnd_enable_csum = &enable_csum;
- ksocknal_tunables.ksnd_inject_csum_error = &inject_csum_error;
- ksocknal_tunables.ksnd_zc_min_payload = &zc_min_payload;
- ksocknal_tunables.ksnd_zc_recv = &zc_recv;
- ksocknal_tunables.ksnd_zc_recv_min_nfrags = &zc_recv_min_nfrags;
-
-#ifdef CPU_AFFINITY
- ksocknal_tunables.ksnd_irq_affinity = &enable_irq_affinity;
-#endif
+ /* initialize ksocknal_tunables structure */
+ ksocknal_tunables.ksnd_timeout = &sock_timeout;
+ ksocknal_tunables.ksnd_nscheds = &nscheds;
+ ksocknal_tunables.ksnd_nconnds = &nconnds;
+ ksocknal_tunables.ksnd_nconnds_max = &nconnds_max;
+ ksocknal_tunables.ksnd_min_reconnectms = &min_reconnectms;
+ ksocknal_tunables.ksnd_max_reconnectms = &max_reconnectms;
+ ksocknal_tunables.ksnd_eager_ack = &eager_ack;
+ ksocknal_tunables.ksnd_typed_conns = &typed_conns;
+ ksocknal_tunables.ksnd_min_bulk = &min_bulk;
+ ksocknal_tunables.ksnd_tx_buffer_size = &tx_buffer_size;
+ ksocknal_tunables.ksnd_rx_buffer_size = &rx_buffer_size;
+ ksocknal_tunables.ksnd_nagle = &nagle;
+ ksocknal_tunables.ksnd_round_robin = &round_robin;
+ ksocknal_tunables.ksnd_keepalive = &keepalive;
+ ksocknal_tunables.ksnd_keepalive_idle = &keepalive_idle;
+ ksocknal_tunables.ksnd_keepalive_count = &keepalive_count;
+ ksocknal_tunables.ksnd_keepalive_intvl = &keepalive_intvl;
+ ksocknal_tunables.ksnd_credits = &credits;
+ ksocknal_tunables.ksnd_peertxcredits = &peer_credits;
+ ksocknal_tunables.ksnd_peerrtrcredits = &peer_buffer_credits;
+ ksocknal_tunables.ksnd_peertimeout = &peer_timeout;
+ ksocknal_tunables.ksnd_enable_csum = &enable_csum;
+ ksocknal_tunables.ksnd_inject_csum_error = &inject_csum_error;
+ ksocknal_tunables.ksnd_nonblk_zcack = &nonblk_zcack;
+ ksocknal_tunables.ksnd_zc_min_payload = &zc_min_payload;
+ ksocknal_tunables.ksnd_zc_recv = &zc_recv;
+ ksocknal_tunables.ksnd_zc_recv_min_nfrags = &zc_recv_min_nfrags;
+ if (conns_per_peer > ((1 << SOCKNAL_CONN_COUNT_MAX_BITS)-1)) {
+ CWARN("socklnd conns_per_peer is capped at %u.\n",
+ (1 << SOCKNAL_CONN_COUNT_MAX_BITS)-1);
+ }
+ ksocknal_tunables.ksnd_conns_per_peer = &conns_per_peer;
+
+ if (enable_irq_affinity) {
+ CWARN("irq_affinity is removed from socklnd because modern "
+ "computer always has fast CPUs and more cores than "
+ "# NICs, although you still can set irq_affinity by "
+ "another way, please check manual for details.\n");
+ }
+ ksocknal_tunables.ksnd_irq_affinity = &enable_irq_affinity;
#ifdef SOCKNAL_BACKOFF
- ksocknal_tunables.ksnd_backoff_init = &backoff_init;
- ksocknal_tunables.ksnd_backoff_max = &backoff_max;
+ ksocknal_tunables.ksnd_backoff_init = &backoff_init;
+ ksocknal_tunables.ksnd_backoff_max = &backoff_max;
#endif
#if SOCKNAL_VERSION_DEBUG
- ksocknal_tunables.ksnd_protocol = &protocol;
+ ksocknal_tunables.ksnd_protocol = &protocol;
#endif
-#if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM
- ksocknal_tunables.ksnd_sysctl = NULL;
-#endif
+ if (*ksocknal_tunables.ksnd_zc_min_payload < (2 << 10))
+ *ksocknal_tunables.ksnd_zc_min_payload = (2 << 10);
- if (*ksocknal_tunables.ksnd_zc_min_payload < (2 << 10))
- *ksocknal_tunables.ksnd_zc_min_payload = (2 << 10);
+ /* When on a hypervisor set the minimum zero copy size
+ * above the maximum payload size
+ */
+ if (!is_native_host())
+ *ksocknal_tunables.ksnd_zc_min_payload = (16 << 20) + 1;
- /* initialize platform-sepcific tunables */
- return ksocknal_lib_tunables_init();
+ return 0;
};
-
-void ksocknal_tunables_fini(void)
-{
- ksocknal_lib_tunables_fini();
-}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff