#include <sys/un.h>
#include "../fio.h"
+#include "../verify.h"
struct netio_data {
int listenfd;
struct sockaddr_in addr;
struct sockaddr_in6 addr6;
struct sockaddr_un addr_un;
+ uint64_t udp_send_seq;
+ uint64_t udp_recv_seq;
};
struct netio_options {
unsigned int nodelay;
unsigned int ttl;
unsigned int window_size;
+ unsigned int mss;
char *intfc;
};
uint32_t cmd;
};
+struct udp_seq {
+ uint64_t magic;
+ uint64_t seq;
+};
+
enum {
FIO_LINK_CLOSE = 0x89,
FIO_LINK_OPEN_CLOSE_MAGIC = 0x6c696e6b,
FIO_LINK_OPEN = 0x98,
+ FIO_UDP_SEQ_MAGIC = 0x657375716e556563ULL,
FIO_TYPE_TCP = 1,
FIO_TYPE_UDP = 2,
.category = FIO_OPT_C_ENGINE,
.group = FIO_OPT_G_NETIO,
},
+#endif
+#ifdef CONFIG_NET_MSS
+ {
+ .name = "mss",
+ .lname = "Maximum segment size",
+ .type = FIO_OPT_INT,
+ .off1 = offsetof(struct netio_options, mss),
+ .minval = 0,
+ .help = "Set TCP maximum segment size",
+ .category = FIO_OPT_C_ENGINE,
+ .group = FIO_OPT_G_NETIO,
+ },
#endif
{
.name = NULL,
#endif
}
+static int set_mss(struct thread_data *td, int fd)
+{
+#ifdef CONFIG_NET_MSS
+ struct netio_options *o = td->eo;
+ unsigned int mss;
+ int ret;
+
+ if (!o->mss || !is_tcp(o))
+ return 0;
+
+ mss = o->mss;
+ ret = setsockopt(fd, IPPROTO_TCP, TCP_MAXSEG, (void *) &mss,
+ sizeof(mss));
+ if (ret < 0)
+ td_verror(td, errno, "setsockopt TCP_MAXSEG");
+
+ return ret;
+#else
+ td_verror(td, -EINVAL, "setsockopt TCP_MAXSEG");
+ return -1;
+#endif
+}
+
+
/*
* Return -1 for error and 'nr events' for a positive number
* of events
}
#endif
+static void store_udp_seq(struct netio_data *nd, struct io_u *io_u)
+{
+ struct udp_seq *us;
+
+ us = io_u->xfer_buf + io_u->xfer_buflen - sizeof(*us);
+ us->magic = cpu_to_le64(FIO_UDP_SEQ_MAGIC);
+ us->seq = cpu_to_le64(nd->udp_send_seq++);
+}
+
+static void verify_udp_seq(struct thread_data *td, struct netio_data *nd,
+ struct io_u *io_u)
+{
+ struct udp_seq *us;
+ uint64_t seq;
+
+ us = io_u->xfer_buf + io_u->xfer_buflen - sizeof(*us);
+ if (le64_to_cpu(us->magic) != FIO_UDP_SEQ_MAGIC)
+ return;
+
+ seq = le64_to_cpu(us->seq);
+
+ if (seq != nd->udp_recv_seq)
+ td->ts.drop_io_u[io_u->ddir] += seq - nd->udp_recv_seq;
+
+ nd->udp_recv_seq = seq + 1;
+}
+
static int fio_netio_send(struct thread_data *td, struct io_u *io_u)
{
struct netio_data *nd = td->io_ops->data;
len = sizeof(nd->addr);
}
+ if (td->o.verify == VERIFY_NONE)
+ store_udp_seq(nd, io_u);
+
ret = sendto(io_u->file->fd, io_u->xfer_buf,
io_u->xfer_buflen, flags, to, len);
} else {
ret = recvfrom(io_u->file->fd, io_u->xfer_buf,
io_u->xfer_buflen, flags, from, len);
+
if (is_udp_close(io_u, ret)) {
td->done = 1;
return 0;
flags |= MSG_WAITALL;
} while (1);
+ if (is_udp(o) && td->o.verify == VERIFY_NONE)
+ verify_udp_seq(td, nd, io_u);
+
return ret;
}
close(f->fd);
return 1;
}
+ if (set_mss(td, f->fd)) {
+ close(f->fd);
+ return 1;
+ }
if (is_udp(o)) {
if (!fio_netio_is_multicast(td->o.filename))
return -1;
}
+ fio_gettime(&td->start, NULL);
return 0;
}
close(fd);
return 1;
}
+ if (set_mss(td, fd)) {
+ close(fd);
+ return 1;
+ }
if (td->o.filename) {
if (!is_udp(o) || !fio_netio_is_multicast(td->o.filename)) {