#include "socklnd.h"
-static int sock_timeout = 50;
+#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)");
MODULE_PARM_DESC(protocol, "protocol version");
#endif
+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;
+ /* 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;
+ 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 (enable_irq_affinity) {
CWARN("irq_affinity is removed from socklnd because modern "
"# 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;
+ 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 (*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;
return 0;
};