1866 lines
43 KiB
C
1866 lines
43 KiB
C
/*
|
|
* Copyright (c) 2005 Ammasso, Inc. All rights reserved.
|
|
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
|
|
*
|
|
* This software is available to you under a choice of one of two
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/ctype.h>
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/condvar.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/module.h>
|
|
#include <sys/endian.h>
|
|
#include <sys/limits.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/signalvar.h>
|
|
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/rwlock.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/taskqueue.h>
|
|
#include <sys/syslog.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#include <contrib/rdma/rdma_cm.h>
|
|
|
|
#include "getopt.h"
|
|
#include "krping.h"
|
|
|
|
#define PFX "krping: "
|
|
|
|
static int debug = 0;
|
|
#define DEBUG_LOG if (debug) printf
|
|
|
|
static const struct krping_option krping_opts[] = {
|
|
{"count", OPT_INT, 'C'},
|
|
{"size", OPT_INT, 'S'},
|
|
{"addr", OPT_STRING, 'a'},
|
|
{"port", OPT_INT, 'p'},
|
|
{"verbose", OPT_NOPARAM, 'v'},
|
|
{"validate", OPT_NOPARAM, 'V'},
|
|
{"server", OPT_NOPARAM, 's'},
|
|
{"client", OPT_NOPARAM, 'c'},
|
|
{"dmamr", OPT_NOPARAM, 'D'},
|
|
{"debug", OPT_NOPARAM, 'd'},
|
|
{"wlat", OPT_NOPARAM, 'l'},
|
|
{"rlat", OPT_NOPARAM, 'L'},
|
|
{"bw", OPT_NOPARAM, 'B'},
|
|
{"tx-depth", OPT_INT, 't'},
|
|
{"poll", OPT_NOPARAM, 'P'},
|
|
{NULL, 0, 0}
|
|
};
|
|
|
|
struct mtx krping_mutex;
|
|
|
|
/*
|
|
* List of running krping threads.
|
|
*/
|
|
struct krping_cb_list krping_cbs;
|
|
|
|
/*
|
|
* krping "ping/pong" loop:
|
|
* client sends source rkey/addr/len
|
|
* server receives source rkey/add/len
|
|
* server rdma reads "ping" data from source
|
|
* server sends "go ahead" on rdma read completion
|
|
* client sends sink rkey/addr/len
|
|
* server receives sink rkey/addr/len
|
|
* server rdma writes "pong" data to sink
|
|
* server sends "go ahead" on rdma write completion
|
|
* <repeat loop>
|
|
*/
|
|
|
|
/*
|
|
* Default max buffer size for IO...
|
|
*/
|
|
#define RPING_BUFSIZE 128*1024
|
|
#define RPING_SQ_DEPTH 32
|
|
|
|
|
|
/* lifted from netinet/libalias/alias_proxy.c */
|
|
static int inet_aton(const char *cp, struct in_addr *addr);
|
|
static int
|
|
inet_aton(cp, addr)
|
|
const char *cp;
|
|
struct in_addr *addr;
|
|
{
|
|
u_long parts[4];
|
|
in_addr_t val;
|
|
const char *c;
|
|
char *endptr;
|
|
int gotend, n;
|
|
|
|
c = (const char *)cp;
|
|
n = 0;
|
|
/*
|
|
* Run through the string, grabbing numbers until
|
|
* the end of the string, or some error
|
|
*/
|
|
gotend = 0;
|
|
while (!gotend) {
|
|
unsigned long l;
|
|
|
|
l = strtoul(c, &endptr, 0);
|
|
|
|
if (l == ULONG_MAX || (l == 0 && endptr == c))
|
|
return (0);
|
|
|
|
val = (in_addr_t)l;
|
|
/*
|
|
* If the whole string is invalid, endptr will equal
|
|
* c.. this way we can make sure someone hasn't
|
|
* gone '.12' or something which would get past
|
|
* the next check.
|
|
*/
|
|
if (endptr == c)
|
|
return (0);
|
|
parts[n] = val;
|
|
c = endptr;
|
|
|
|
/* Check the next character past the previous number's end */
|
|
switch (*c) {
|
|
case '.' :
|
|
/* Make sure we only do 3 dots .. */
|
|
if (n == 3) /* Whoops. Quit. */
|
|
return (0);
|
|
n++;
|
|
c++;
|
|
break;
|
|
|
|
case '\0':
|
|
gotend = 1;
|
|
break;
|
|
|
|
default:
|
|
if (isspace((unsigned char)*c)) {
|
|
gotend = 1;
|
|
break;
|
|
} else
|
|
return (0); /* Invalid character, so fail */
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* Concoct the address according to
|
|
* the number of parts specified.
|
|
*/
|
|
|
|
switch (n) {
|
|
case 0: /* a -- 32 bits */
|
|
/*
|
|
* Nothing is necessary here. Overflow checking was
|
|
* already done in strtoul().
|
|
*/
|
|
break;
|
|
case 1: /* a.b -- 8.24 bits */
|
|
if (val > 0xffffff || parts[0] > 0xff)
|
|
return (0);
|
|
val |= parts[0] << 24;
|
|
break;
|
|
|
|
case 2: /* a.b.c -- 8.8.16 bits */
|
|
if (val > 0xffff || parts[0] > 0xff || parts[1] > 0xff)
|
|
return (0);
|
|
val |= (parts[0] << 24) | (parts[1] << 16);
|
|
break;
|
|
|
|
case 3: /* a.b.c.d -- 8.8.8.8 bits */
|
|
if (val > 0xff || parts[0] > 0xff || parts[1] > 0xff ||
|
|
parts[2] > 0xff)
|
|
return (0);
|
|
val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
|
|
break;
|
|
}
|
|
|
|
if (addr != NULL)
|
|
addr->s_addr = htonl(val);
|
|
return (1);
|
|
}
|
|
|
|
|
|
static void krping_wait(struct krping_cb *cb, int state)
|
|
{
|
|
int rc;
|
|
mtx_lock(&cb->lock);
|
|
while (cb->state < state) {
|
|
rc = msleep(cb, &cb->lock, 0, "krping", 0);
|
|
if (rc && rc != ERESTART) {
|
|
cb->state = ERROR;
|
|
break;
|
|
}
|
|
}
|
|
mtx_unlock(&cb->lock);
|
|
}
|
|
|
|
static int krping_cma_event_handler(struct rdma_cm_id *cma_id,
|
|
struct rdma_cm_event *event)
|
|
{
|
|
int ret;
|
|
struct krping_cb *cb = cma_id->context;
|
|
|
|
DEBUG_LOG(PFX "cma_event type %d cma_id %p (%s)\n", event->event, cma_id,
|
|
(cma_id == cb->cm_id) ? "parent" : "child");
|
|
|
|
mtx_lock(&cb->lock);
|
|
switch (event->event) {
|
|
case RDMA_CM_EVENT_ADDR_RESOLVED:
|
|
cb->state = ADDR_RESOLVED;
|
|
ret = rdma_resolve_route(cma_id, 2000);
|
|
if (ret) {
|
|
log(LOG_ERR, "rdma_resolve_route error %d\n",
|
|
ret);
|
|
wakeup(cb);
|
|
}
|
|
break;
|
|
|
|
case RDMA_CM_EVENT_ROUTE_RESOLVED:
|
|
cb->state = ROUTE_RESOLVED;
|
|
wakeup(cb);
|
|
break;
|
|
|
|
case RDMA_CM_EVENT_CONNECT_REQUEST:
|
|
cb->state = CONNECT_REQUEST;
|
|
cb->child_cm_id = cma_id;
|
|
DEBUG_LOG(PFX "child cma %p\n", cb->child_cm_id);
|
|
wakeup(cb);
|
|
break;
|
|
|
|
case RDMA_CM_EVENT_ESTABLISHED:
|
|
DEBUG_LOG(PFX "ESTABLISHED\n");
|
|
if (!cb->server) {
|
|
cb->state = CONNECTED;
|
|
wakeup(cb);
|
|
}
|
|
break;
|
|
|
|
case RDMA_CM_EVENT_ADDR_ERROR:
|
|
case RDMA_CM_EVENT_ROUTE_ERROR:
|
|
case RDMA_CM_EVENT_CONNECT_ERROR:
|
|
case RDMA_CM_EVENT_UNREACHABLE:
|
|
case RDMA_CM_EVENT_REJECTED:
|
|
log(LOG_ERR, "cma event %d, error %d\n", event->event,
|
|
event->status);
|
|
cb->state = ERROR;
|
|
wakeup(cb);
|
|
break;
|
|
|
|
case RDMA_CM_EVENT_DISCONNECTED:
|
|
DEBUG_LOG(PFX "DISCONNECT EVENT...\n");
|
|
cb->state = ERROR;
|
|
wakeup(cb);
|
|
break;
|
|
|
|
case RDMA_CM_EVENT_DEVICE_REMOVAL:
|
|
DEBUG_LOG(PFX "cma detected device removal!!!!\n");
|
|
break;
|
|
|
|
default:
|
|
log(LOG_ERR, "oof bad type!\n");
|
|
wakeup(cb);
|
|
break;
|
|
}
|
|
mtx_unlock(&cb->lock);
|
|
return 0;
|
|
}
|
|
|
|
static int server_recv(struct krping_cb *cb, struct ib_wc *wc)
|
|
{
|
|
if (wc->byte_len != sizeof(cb->recv_buf)) {
|
|
log(LOG_ERR, "Received bogus data, size %d\n",
|
|
wc->byte_len);
|
|
return -1;
|
|
}
|
|
|
|
cb->remote_rkey = ntohl(cb->recv_buf.rkey);
|
|
cb->remote_addr = ntohll(cb->recv_buf.buf);
|
|
cb->remote_len = ntohl(cb->recv_buf.size);
|
|
DEBUG_LOG(PFX "Received rkey %x addr %llx len %d from peer\n",
|
|
cb->remote_rkey, (unsigned long long)cb->remote_addr,
|
|
cb->remote_len);
|
|
|
|
if (cb->state <= CONNECTED || cb->state == RDMA_WRITE_COMPLETE)
|
|
cb->state = RDMA_READ_ADV;
|
|
else
|
|
cb->state = RDMA_WRITE_ADV;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int client_recv(struct krping_cb *cb, struct ib_wc *wc)
|
|
{
|
|
if (wc->byte_len != sizeof(cb->recv_buf)) {
|
|
log(LOG_ERR, "Received bogus data, size %d\n",
|
|
wc->byte_len);
|
|
return -1;
|
|
}
|
|
|
|
if (cb->state == RDMA_READ_ADV)
|
|
cb->state = RDMA_WRITE_ADV;
|
|
else
|
|
cb->state = RDMA_WRITE_COMPLETE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void krping_cq_event_handler(struct ib_cq *cq, void *ctx)
|
|
{
|
|
struct krping_cb *cb = ctx;
|
|
struct ib_wc wc;
|
|
struct ib_recv_wr *bad_wr;
|
|
int ret;
|
|
|
|
mtx_lock(&cb->lock);
|
|
KASSERT(cb->cq == cq, ("bad condition"));
|
|
if (cb->state == ERROR) {
|
|
log(LOG_ERR, "cq completion in ERROR state\n");
|
|
mtx_unlock(&cb->lock);
|
|
return;
|
|
}
|
|
if (!cb->wlat && !cb->rlat && !cb->bw)
|
|
ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc)) == 1) {
|
|
if (wc.status) {
|
|
if (wc.status != IB_WC_WR_FLUSH_ERR)
|
|
log(LOG_ERR, "cq completion failed status %d\n",
|
|
wc.status);
|
|
goto error;
|
|
}
|
|
|
|
switch (wc.opcode) {
|
|
case IB_WC_SEND:
|
|
DEBUG_LOG(PFX "send completion\n");
|
|
cb->stats.send_bytes += cb->send_sgl.length;
|
|
cb->stats.send_msgs++;
|
|
break;
|
|
|
|
case IB_WC_RDMA_WRITE:
|
|
DEBUG_LOG(PFX "rdma write completion\n");
|
|
cb->stats.write_bytes += cb->rdma_sq_wr.sg_list->length;
|
|
cb->stats.write_msgs++;
|
|
cb->state = RDMA_WRITE_COMPLETE;
|
|
wakeup(cb);
|
|
break;
|
|
|
|
case IB_WC_RDMA_READ:
|
|
DEBUG_LOG(PFX "rdma read completion\n");
|
|
cb->stats.read_bytes += cb->rdma_sq_wr.sg_list->length;
|
|
cb->stats.read_msgs++;
|
|
cb->state = RDMA_READ_COMPLETE;
|
|
wakeup(cb);
|
|
break;
|
|
|
|
case IB_WC_RECV:
|
|
DEBUG_LOG(PFX "recv completion\n");
|
|
cb->stats.recv_bytes += sizeof(cb->recv_buf);
|
|
cb->stats.recv_msgs++;
|
|
if (cb->wlat || cb->rlat || cb->bw)
|
|
ret = server_recv(cb, &wc);
|
|
else
|
|
ret = cb->server ? server_recv(cb, &wc) :
|
|
client_recv(cb, &wc);
|
|
if (ret) {
|
|
log(LOG_ERR, "recv wc error: %d\n", ret);
|
|
goto error;
|
|
}
|
|
|
|
ret = ib_post_recv(cb->qp, &cb->rq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post recv error: %d\n",
|
|
ret);
|
|
goto error;
|
|
}
|
|
wakeup(cb);
|
|
break;
|
|
|
|
default:
|
|
log(LOG_ERR, "unknown!!!!! completion\n");
|
|
goto error;
|
|
}
|
|
}
|
|
if (ret) {
|
|
log(LOG_ERR, "poll error %d\n", ret);
|
|
goto error;
|
|
}
|
|
mtx_unlock(&cb->lock);
|
|
return;
|
|
error:
|
|
cb->state = ERROR;
|
|
wakeup(cb);
|
|
mtx_unlock(&cb->lock);
|
|
}
|
|
|
|
static int krping_accept(struct krping_cb *cb)
|
|
{
|
|
struct rdma_conn_param conn_param;
|
|
int ret;
|
|
|
|
DEBUG_LOG(PFX "accepting client connection request\n");
|
|
|
|
memset(&conn_param, 0, sizeof conn_param);
|
|
conn_param.responder_resources = 1;
|
|
conn_param.initiator_depth = 1;
|
|
|
|
ret = rdma_accept(cb->child_cm_id, &conn_param);
|
|
if (ret) {
|
|
log(LOG_ERR, "rdma_accept error: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
if (!cb->wlat && !cb->rlat && !cb->bw) {
|
|
krping_wait(cb, CONNECTED);
|
|
if (cb->state == ERROR) {
|
|
log(LOG_ERR, "wait for CONNECTED state %d\n", cb->state);
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void krping_setup_wr(struct krping_cb *cb)
|
|
{
|
|
/* XXX X86 only here... not mapping for dma! */
|
|
cb->recv_sgl.addr = vtophys(&cb->recv_buf);
|
|
cb->recv_sgl.length = sizeof cb->recv_buf;
|
|
if (cb->use_dmamr)
|
|
cb->recv_sgl.lkey = cb->dma_mr->lkey;
|
|
else
|
|
cb->recv_sgl.lkey = cb->recv_mr->lkey;
|
|
cb->rq_wr.sg_list = &cb->recv_sgl;
|
|
cb->rq_wr.num_sge = 1;
|
|
|
|
cb->send_sgl.addr = vtophys(&cb->send_buf);
|
|
cb->send_sgl.length = sizeof cb->send_buf;
|
|
if (cb->use_dmamr)
|
|
cb->send_sgl.lkey = cb->dma_mr->lkey;
|
|
else
|
|
cb->send_sgl.lkey = cb->send_mr->lkey;
|
|
|
|
cb->sq_wr.opcode = IB_WR_SEND;
|
|
cb->sq_wr.send_flags = IB_SEND_SIGNALED;
|
|
cb->sq_wr.sg_list = &cb->send_sgl;
|
|
cb->sq_wr.num_sge = 1;
|
|
|
|
cb->rdma_addr = vtophys(cb->rdma_buf);
|
|
cb->rdma_sgl.addr = cb->rdma_addr;
|
|
if (cb->use_dmamr)
|
|
cb->rdma_sgl.lkey = cb->dma_mr->lkey;
|
|
else
|
|
cb->rdma_sgl.lkey = cb->rdma_mr->lkey;
|
|
cb->rdma_sq_wr.send_flags = IB_SEND_SIGNALED;
|
|
cb->rdma_sq_wr.sg_list = &cb->rdma_sgl;
|
|
cb->rdma_sq_wr.num_sge = 1;
|
|
|
|
if (!cb->server || cb->wlat || cb->rlat || cb->bw) {
|
|
cb->start_addr = vtophys(cb->start_buf);
|
|
}
|
|
}
|
|
|
|
static int krping_setup_buffers(struct krping_cb *cb)
|
|
{
|
|
int ret;
|
|
struct ib_phys_buf buf;
|
|
u64 iovbase;
|
|
|
|
DEBUG_LOG(PFX "krping_setup_buffers called on cb %p\n", cb);
|
|
|
|
if (cb->use_dmamr) {
|
|
cb->dma_mr = ib_get_dma_mr(cb->pd, IB_ACCESS_LOCAL_WRITE|
|
|
IB_ACCESS_REMOTE_READ|
|
|
IB_ACCESS_REMOTE_WRITE);
|
|
if (IS_ERR(cb->dma_mr)) {
|
|
log(LOG_ERR, "reg_dmamr failed\n");
|
|
return PTR_ERR(cb->dma_mr);
|
|
}
|
|
} else {
|
|
|
|
buf.addr = vtophys(&cb->recv_buf);
|
|
buf.size = sizeof cb->recv_buf;
|
|
iovbase = vtophys(&cb->recv_buf);
|
|
cb->recv_mr = ib_reg_phys_mr(cb->pd, &buf, 1,
|
|
IB_ACCESS_LOCAL_WRITE,
|
|
&iovbase);
|
|
|
|
if (IS_ERR(cb->recv_mr)) {
|
|
log(LOG_ERR, "recv_buf reg_mr failed\n");
|
|
return PTR_ERR(cb->recv_mr);
|
|
}
|
|
|
|
buf.addr = vtophys(&cb->send_buf);
|
|
buf.size = sizeof cb->send_buf;
|
|
iovbase = vtophys(&cb->send_buf);
|
|
cb->send_mr = ib_reg_phys_mr(cb->pd, &buf, 1,
|
|
0, &iovbase);
|
|
|
|
if (IS_ERR(cb->send_mr)) {
|
|
log(LOG_ERR, "send_buf reg_mr failed\n");
|
|
ib_dereg_mr(cb->recv_mr);
|
|
return PTR_ERR(cb->send_mr);
|
|
}
|
|
}
|
|
|
|
cb->rdma_buf = contigmalloc(cb->size, M_DEVBUF, M_WAITOK, 0, -1UL,
|
|
PAGE_SIZE, 0);
|
|
|
|
if (!cb->rdma_buf) {
|
|
log(LOG_ERR, "rdma_buf malloc failed\n");
|
|
ret = ENOMEM;
|
|
goto err1;
|
|
}
|
|
if (!cb->use_dmamr) {
|
|
|
|
buf.addr = vtophys(cb->rdma_buf);
|
|
buf.size = cb->size;
|
|
iovbase = vtophys(cb->rdma_buf);
|
|
cb->rdma_mr = ib_reg_phys_mr(cb->pd, &buf, 1,
|
|
IB_ACCESS_REMOTE_READ|
|
|
IB_ACCESS_REMOTE_WRITE,
|
|
&iovbase);
|
|
|
|
if (IS_ERR(cb->rdma_mr)) {
|
|
log(LOG_ERR, "rdma_buf reg_mr failed\n");
|
|
ret = PTR_ERR(cb->rdma_mr);
|
|
goto err2;
|
|
}
|
|
}
|
|
|
|
if (!cb->server || cb->wlat || cb->rlat || cb->bw) {
|
|
cb->start_buf = contigmalloc(cb->size, M_DEVBUF, M_WAITOK,
|
|
0, -1UL, PAGE_SIZE, 0);
|
|
if (!cb->start_buf) {
|
|
log(LOG_ERR, "start_buf malloc failed\n");
|
|
ret = ENOMEM;
|
|
goto err2;
|
|
}
|
|
if (!cb->use_dmamr) {
|
|
unsigned flags = IB_ACCESS_REMOTE_READ;
|
|
|
|
if (cb->wlat || cb->rlat || cb->bw)
|
|
flags |= IB_ACCESS_REMOTE_WRITE;
|
|
buf.addr = vtophys(cb->start_buf);
|
|
buf.size = cb->size;
|
|
iovbase = vtophys(cb->start_buf);
|
|
cb->start_mr = ib_reg_phys_mr(cb->pd, &buf, 1,
|
|
flags,
|
|
&iovbase);
|
|
|
|
if (IS_ERR(cb->start_mr)) {
|
|
log(LOG_ERR, "start_buf reg_mr failed\n");
|
|
ret = PTR_ERR(cb->start_mr);
|
|
goto err3;
|
|
}
|
|
}
|
|
}
|
|
|
|
krping_setup_wr(cb);
|
|
DEBUG_LOG(PFX "allocated & registered buffers...\n");
|
|
return 0;
|
|
err3:
|
|
contigfree(cb->start_buf, cb->size, M_DEVBUF);
|
|
|
|
if (!cb->use_dmamr)
|
|
ib_dereg_mr(cb->rdma_mr);
|
|
err2:
|
|
contigfree(cb->rdma_buf, cb->size, M_DEVBUF);
|
|
err1:
|
|
if (cb->use_dmamr)
|
|
ib_dereg_mr(cb->dma_mr);
|
|
else {
|
|
ib_dereg_mr(cb->recv_mr);
|
|
ib_dereg_mr(cb->send_mr);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void krping_free_buffers(struct krping_cb *cb)
|
|
{
|
|
DEBUG_LOG(PFX "krping_free_buffers called on cb %p\n", cb);
|
|
|
|
#if 0
|
|
dma_unmap_single(cb->pd->device->dma_device,
|
|
pci_unmap_addr(cb, recv_mapping),
|
|
sizeof(cb->recv_buf), DMA_BIDIRECTIONAL);
|
|
dma_unmap_single(cb->pd->device->dma_device,
|
|
pci_unmap_addr(cb, send_mapping),
|
|
sizeof(cb->send_buf), DMA_BIDIRECTIONAL);
|
|
dma_unmap_single(cb->pd->device->dma_device,
|
|
pci_unmap_addr(cb, rdma_mapping),
|
|
cb->size, DMA_BIDIRECTIONAL);
|
|
#endif
|
|
contigfree(cb->rdma_buf, cb->size, M_DEVBUF);
|
|
if (!cb->server || cb->wlat || cb->rlat || cb->bw) {
|
|
#if 0
|
|
dma_unmap_single(cb->pd->device->dma_device,
|
|
pci_unmap_addr(cb, start_mapping),
|
|
cb->size, DMA_BIDIRECTIONAL);
|
|
#endif
|
|
contigfree(cb->start_buf, cb->size, M_DEVBUF);
|
|
}
|
|
if (cb->use_dmamr)
|
|
ib_dereg_mr(cb->dma_mr);
|
|
else {
|
|
ib_dereg_mr(cb->send_mr);
|
|
ib_dereg_mr(cb->recv_mr);
|
|
ib_dereg_mr(cb->rdma_mr);
|
|
if (!cb->server)
|
|
ib_dereg_mr(cb->start_mr);
|
|
}
|
|
}
|
|
|
|
static int krping_create_qp(struct krping_cb *cb)
|
|
{
|
|
struct ib_qp_init_attr init_attr;
|
|
int ret;
|
|
|
|
memset(&init_attr, 0, sizeof(init_attr));
|
|
init_attr.cap.max_send_wr = cb->txdepth;
|
|
init_attr.cap.max_recv_wr = 2;
|
|
init_attr.cap.max_recv_sge = 1;
|
|
init_attr.cap.max_send_sge = 1;
|
|
init_attr.qp_type = IB_QPT_RC;
|
|
init_attr.send_cq = cb->cq;
|
|
init_attr.recv_cq = cb->cq;
|
|
|
|
if (cb->server) {
|
|
ret = rdma_create_qp(cb->child_cm_id, cb->pd, &init_attr);
|
|
if (!ret)
|
|
cb->qp = cb->child_cm_id->qp;
|
|
} else {
|
|
ret = rdma_create_qp(cb->cm_id, cb->pd, &init_attr);
|
|
if (!ret)
|
|
cb->qp = cb->cm_id->qp;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void krping_free_qp(struct krping_cb *cb)
|
|
{
|
|
ib_destroy_qp(cb->qp);
|
|
ib_destroy_cq(cb->cq);
|
|
ib_dealloc_pd(cb->pd);
|
|
}
|
|
|
|
static int krping_setup_qp(struct krping_cb *cb, struct rdma_cm_id *cm_id)
|
|
{
|
|
int ret;
|
|
cb->pd = ib_alloc_pd(cm_id->device);
|
|
if (IS_ERR(cb->pd)) {
|
|
log(LOG_ERR, "ib_alloc_pd failed\n");
|
|
return PTR_ERR(cb->pd);
|
|
}
|
|
DEBUG_LOG(PFX "created pd %p\n", cb->pd);
|
|
|
|
cb->cq = ib_create_cq(cm_id->device, krping_cq_event_handler, NULL,
|
|
cb, cb->txdepth * 2, 0);
|
|
if (IS_ERR(cb->cq)) {
|
|
log(LOG_ERR, "ib_create_cq failed\n");
|
|
ret = PTR_ERR(cb->cq);
|
|
goto err1;
|
|
}
|
|
DEBUG_LOG(PFX "created cq %p\n", cb->cq);
|
|
|
|
if (!cb->wlat && !cb->rlat && !cb->bw) {
|
|
ret = ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
|
|
if (ret) {
|
|
log(LOG_ERR, "ib_create_cq failed\n");
|
|
goto err2;
|
|
}
|
|
}
|
|
|
|
ret = krping_create_qp(cb);
|
|
if (ret) {
|
|
log(LOG_ERR, "krping_create_qp failed: %d\n", ret);
|
|
goto err2;
|
|
}
|
|
DEBUG_LOG(PFX "created qp %p\n", cb->qp);
|
|
return 0;
|
|
err2:
|
|
ib_destroy_cq(cb->cq);
|
|
err1:
|
|
ib_dealloc_pd(cb->pd);
|
|
return ret;
|
|
}
|
|
|
|
static void krping_format_send(struct krping_cb *cb, u64 buf,
|
|
struct ib_mr *mr)
|
|
{
|
|
struct krping_rdma_info *info = &cb->send_buf;
|
|
|
|
info->buf = htonll(buf);
|
|
info->rkey = htonl(mr->rkey);
|
|
info->size = htonl(cb->size);
|
|
|
|
DEBUG_LOG(PFX "RDMA addr %llx rkey %x len %d\n",
|
|
(unsigned long long)buf, mr->rkey, cb->size);
|
|
}
|
|
|
|
static void krping_test_server(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
int ret;
|
|
|
|
while (1) {
|
|
/* Wait for client's Start STAG/TO/Len */
|
|
krping_wait(cb, RDMA_READ_ADV);
|
|
if (cb->state != RDMA_READ_ADV) {
|
|
DEBUG_LOG(PFX "wait for RDMA_READ_ADV state %d\n",
|
|
cb->state);
|
|
break;
|
|
}
|
|
|
|
DEBUG_LOG(PFX "server received sink adv\n");
|
|
|
|
/* Issue RDMA Read. */
|
|
cb->rdma_sq_wr.opcode = IB_WR_RDMA_READ;
|
|
cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
|
|
cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
|
|
cb->rdma_sq_wr.sg_list->length = cb->remote_len;
|
|
|
|
ret = ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post send error %d\n", ret);
|
|
break;
|
|
}
|
|
DEBUG_LOG(PFX "server posted rdma read req \n");
|
|
|
|
/* Wait for read completion */
|
|
krping_wait(cb, RDMA_READ_COMPLETE);
|
|
if (cb->state != RDMA_READ_COMPLETE) {
|
|
log(LOG_ERR,
|
|
"wait for RDMA_READ_COMPLETE state %d\n",
|
|
cb->state);
|
|
break;
|
|
}
|
|
DEBUG_LOG(PFX "server received read complete\n");
|
|
|
|
/* Display data in recv buf */
|
|
if (cb->verbose)
|
|
DEBUG_LOG("server ping data: %s\n", cb->rdma_buf);
|
|
|
|
/* Tell client to continue */
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post send error %d\n", ret);
|
|
break;
|
|
}
|
|
DEBUG_LOG(PFX "server posted go ahead\n");
|
|
|
|
/* Wait for client's RDMA STAG/TO/Len */
|
|
krping_wait(cb, RDMA_WRITE_ADV);
|
|
if (cb->state != RDMA_WRITE_ADV) {
|
|
log(LOG_ERR,
|
|
"wait for RDMA_WRITE_ADV state %d\n",
|
|
cb->state);
|
|
break;
|
|
}
|
|
DEBUG_LOG(PFX "server received sink adv\n");
|
|
|
|
/* RDMA Write echo data */
|
|
cb->rdma_sq_wr.opcode = IB_WR_RDMA_WRITE;
|
|
cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
|
|
cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
|
|
cb->rdma_sq_wr.sg_list->length = strlen(cb->rdma_buf) + 1;
|
|
DEBUG_LOG(PFX "rdma write from lkey %x laddr %llx len %d\n",
|
|
cb->rdma_sq_wr.sg_list->lkey,
|
|
(unsigned long long)cb->rdma_sq_wr.sg_list->addr,
|
|
cb->rdma_sq_wr.sg_list->length);
|
|
|
|
ret = ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post send error %d\n", ret);
|
|
break;
|
|
}
|
|
|
|
/* Wait for completion */
|
|
krping_wait(cb, RDMA_WRITE_COMPLETE);
|
|
if (cb->state != RDMA_WRITE_COMPLETE) {
|
|
log(LOG_ERR,
|
|
"wait for RDMA_WRITE_COMPLETE state %d\n",
|
|
cb->state);
|
|
break;
|
|
}
|
|
DEBUG_LOG(PFX "server rdma write complete \n");
|
|
|
|
cb->state = CONNECTED;
|
|
|
|
/* Tell client to begin again */
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post send error %d\n", ret);
|
|
break;
|
|
}
|
|
DEBUG_LOG(PFX "server posted go ahead\n");
|
|
}
|
|
}
|
|
|
|
static void rlat_test(struct krping_cb *cb)
|
|
{
|
|
int scnt;
|
|
int iters = cb->count;
|
|
struct timeval start_tv, stop_tv;
|
|
int ret;
|
|
struct ib_wc wc;
|
|
struct ib_send_wr *bad_wr;
|
|
int ne;
|
|
|
|
scnt = 0;
|
|
cb->rdma_sq_wr.opcode = IB_WR_RDMA_READ;
|
|
cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
|
|
cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
|
|
cb->rdma_sq_wr.sg_list->length = cb->size;
|
|
|
|
microtime(&start_tv);
|
|
if (!cb->poll) {
|
|
cb->state = RDMA_READ_ADV;
|
|
ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
|
|
}
|
|
while (scnt < iters) {
|
|
|
|
cb->state = RDMA_READ_ADV;
|
|
ret = ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR,
|
|
"Couldn't post send: ret=%d scnt %d\n",
|
|
ret, scnt);
|
|
return;
|
|
}
|
|
|
|
do {
|
|
if (!cb->poll) {
|
|
krping_wait(cb, RDMA_READ_COMPLETE);
|
|
if (cb->state == RDMA_READ_COMPLETE) {
|
|
ne = 1;
|
|
ib_req_notify_cq(cb->cq, IB_CQ_NEXT_COMP);
|
|
} else {
|
|
ne = -1;
|
|
}
|
|
} else
|
|
ne = ib_poll_cq(cb->cq, 1, &wc);
|
|
if (cb->state == ERROR) {
|
|
log(LOG_ERR,
|
|
"state == ERROR...bailing scnt %d\n", scnt);
|
|
return;
|
|
}
|
|
} while (ne == 0);
|
|
|
|
if (ne < 0) {
|
|
log(LOG_ERR, "poll CQ failed %d\n", ne);
|
|
return;
|
|
}
|
|
if (cb->poll && wc.status != IB_WC_SUCCESS) {
|
|
log(LOG_ERR, "Completion wth error at %s:\n",
|
|
cb->server ? "server" : "client");
|
|
log(LOG_ERR, "Failed status %d: wr_id %d\n",
|
|
wc.status, (int) wc.wr_id);
|
|
return;
|
|
}
|
|
++scnt;
|
|
}
|
|
microtime(&stop_tv);
|
|
|
|
if (stop_tv.tv_usec < start_tv.tv_usec) {
|
|
stop_tv.tv_usec += 1000000;
|
|
stop_tv.tv_sec -= 1;
|
|
}
|
|
|
|
log(LOG_ERR, "delta sec %lu delta usec %lu iter %d size %d\n",
|
|
stop_tv.tv_sec - start_tv.tv_sec,
|
|
stop_tv.tv_usec - start_tv.tv_usec,
|
|
scnt, cb->size);
|
|
}
|
|
|
|
static int alloc_cycle_mem(int cycle_iters,
|
|
cycles_t **post_cycles_start,
|
|
cycles_t **post_cycles_stop,
|
|
cycles_t **poll_cycles_start,
|
|
cycles_t **poll_cycles_stop,
|
|
cycles_t **last_poll_cycles_start)
|
|
{
|
|
*post_cycles_start = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
|
|
if (!*post_cycles_start) {
|
|
goto fail1;
|
|
}
|
|
*post_cycles_stop = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
|
|
if (!*post_cycles_stop) {
|
|
goto fail2;
|
|
}
|
|
*poll_cycles_start = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
|
|
if (!*poll_cycles_start) {
|
|
goto fail3;
|
|
}
|
|
*poll_cycles_stop = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
|
|
if (!*poll_cycles_stop) {
|
|
goto fail4;
|
|
}
|
|
*last_poll_cycles_start = malloc(cycle_iters * sizeof(cycles_t), M_DEVBUF, M_WAITOK);
|
|
if (!*last_poll_cycles_start) {
|
|
goto fail5;
|
|
}
|
|
return 0;
|
|
fail5:
|
|
free(*poll_cycles_stop, M_DEVBUF);
|
|
fail4:
|
|
free(*poll_cycles_start, M_DEVBUF);
|
|
fail3:
|
|
free(*post_cycles_stop, M_DEVBUF);
|
|
fail2:
|
|
free(*post_cycles_start, M_DEVBUF);
|
|
fail1:
|
|
log(LOG_ERR, "%s malloc failed\n", __FUNCTION__);
|
|
return ENOMEM;
|
|
}
|
|
|
|
static void free_cycle_mem(cycles_t *post_cycles_start,
|
|
cycles_t *post_cycles_stop,
|
|
cycles_t *poll_cycles_start,
|
|
cycles_t *poll_cycles_stop,
|
|
cycles_t *last_poll_cycles_start)
|
|
{
|
|
free(last_poll_cycles_start, M_DEVBUF);
|
|
free(poll_cycles_stop, M_DEVBUF);
|
|
free(poll_cycles_start, M_DEVBUF);
|
|
free(post_cycles_stop, M_DEVBUF);
|
|
free(post_cycles_start, M_DEVBUF);
|
|
}
|
|
|
|
static void wlat_test(struct krping_cb *cb)
|
|
{
|
|
int ccnt, scnt, rcnt;
|
|
int iters=cb->count;
|
|
volatile char *poll_buf = (char *) cb->start_buf;
|
|
char *buf = (char *)cb->rdma_buf;
|
|
ccnt = 0;
|
|
scnt = 0;
|
|
rcnt = 0;
|
|
struct timeval start_tv, stop_tv;
|
|
cycles_t *post_cycles_start, *post_cycles_stop;
|
|
cycles_t *poll_cycles_start, *poll_cycles_stop;
|
|
cycles_t *last_poll_cycles_start;
|
|
cycles_t sum_poll = 0, sum_post = 0, sum_last_poll = 0;
|
|
int i;
|
|
int cycle_iters = 1000;
|
|
int err;
|
|
|
|
err = alloc_cycle_mem(cycle_iters, &post_cycles_start, &post_cycles_stop,
|
|
&poll_cycles_start, &poll_cycles_stop, &last_poll_cycles_start);
|
|
|
|
if (err) {
|
|
log(LOG_ERR, "%s malloc failed\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
cb->rdma_sq_wr.opcode = IB_WR_RDMA_WRITE;
|
|
cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
|
|
cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
|
|
cb->rdma_sq_wr.sg_list->length = cb->size;
|
|
|
|
if (cycle_iters > iters)
|
|
cycle_iters = iters;
|
|
microtime(&start_tv);
|
|
while (scnt < iters || ccnt < iters || rcnt < iters) {
|
|
|
|
/* Wait till buffer changes. */
|
|
if (rcnt < iters && !(scnt < 1 && !cb->server)) {
|
|
++rcnt;
|
|
while (*poll_buf != (char)rcnt) {
|
|
if (cb->state == ERROR) {
|
|
log(LOG_ERR, "state = ERROR, bailing\n");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (scnt < iters) {
|
|
struct ib_send_wr *bad_wr;
|
|
|
|
*buf = (char)scnt+1;
|
|
if (scnt < cycle_iters)
|
|
post_cycles_start[scnt] = get_cycles();
|
|
if (ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr)) {
|
|
log(LOG_ERR, "Couldn't post send: scnt=%d\n",
|
|
scnt);
|
|
return;
|
|
}
|
|
if (scnt < cycle_iters)
|
|
post_cycles_stop[scnt] = get_cycles();
|
|
scnt++;
|
|
}
|
|
|
|
if (ccnt < iters) {
|
|
struct ib_wc wc;
|
|
int ne;
|
|
|
|
if (ccnt < cycle_iters)
|
|
poll_cycles_start[ccnt] = get_cycles();
|
|
do {
|
|
if (ccnt < cycle_iters)
|
|
last_poll_cycles_start[ccnt] = get_cycles();
|
|
ne = ib_poll_cq(cb->cq, 1, &wc);
|
|
} while (ne == 0);
|
|
if (ccnt < cycle_iters)
|
|
poll_cycles_stop[ccnt] = get_cycles();
|
|
++ccnt;
|
|
|
|
if (ne < 0) {
|
|
log(LOG_ERR, "poll CQ failed %d\n", ne);
|
|
return;
|
|
}
|
|
if (wc.status != IB_WC_SUCCESS) {
|
|
log(LOG_ERR, "Completion wth error at %s:\n",
|
|
cb->server ? "server" : "client");
|
|
log(LOG_ERR, "Failed status %d: wr_id %d\n",
|
|
wc.status, (int) wc.wr_id);
|
|
log(LOG_ERR, "scnt=%d, rcnt=%d, ccnt=%d\n",
|
|
scnt, rcnt, ccnt);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
microtime(&stop_tv);
|
|
|
|
if (stop_tv.tv_usec < start_tv.tv_usec) {
|
|
stop_tv.tv_usec += 1000000;
|
|
stop_tv.tv_sec -= 1;
|
|
}
|
|
|
|
for (i=0; i < cycle_iters; i++) {
|
|
sum_post += post_cycles_stop[i] - post_cycles_start[i];
|
|
sum_poll += poll_cycles_stop[i] - poll_cycles_start[i];
|
|
sum_last_poll += poll_cycles_stop[i] - last_poll_cycles_start[i];
|
|
}
|
|
|
|
log(LOG_ERR, "delta sec %lu delta usec %lu iter %d size %d cycle_iters %d sum_post %llu sum_poll %llu sum_last_poll %llu\n",
|
|
stop_tv.tv_sec - start_tv.tv_sec,
|
|
stop_tv.tv_usec - start_tv.tv_usec,
|
|
scnt, cb->size, cycle_iters,
|
|
(unsigned long long)sum_post, (unsigned long long)sum_poll,
|
|
(unsigned long long)sum_last_poll);
|
|
|
|
free_cycle_mem(post_cycles_start, post_cycles_stop, poll_cycles_start,
|
|
poll_cycles_stop, last_poll_cycles_start);
|
|
}
|
|
|
|
static void bw_test(struct krping_cb *cb)
|
|
{
|
|
int ccnt, scnt, rcnt;
|
|
int iters=cb->count;
|
|
ccnt = 0;
|
|
scnt = 0;
|
|
rcnt = 0;
|
|
struct timeval start_tv, stop_tv;
|
|
cycles_t *post_cycles_start, *post_cycles_stop;
|
|
cycles_t *poll_cycles_start, *poll_cycles_stop;
|
|
cycles_t *last_poll_cycles_start;
|
|
cycles_t sum_poll = 0, sum_post = 0, sum_last_poll = 0;
|
|
int i;
|
|
int cycle_iters = 1000;
|
|
int err;
|
|
|
|
err = alloc_cycle_mem(cycle_iters, &post_cycles_start, &post_cycles_stop,
|
|
&poll_cycles_start, &poll_cycles_stop, &last_poll_cycles_start);
|
|
|
|
if (err) {
|
|
log(LOG_ERR, "%s kmalloc failed\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
cb->rdma_sq_wr.opcode = IB_WR_RDMA_WRITE;
|
|
cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
|
|
cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
|
|
cb->rdma_sq_wr.sg_list->length = cb->size;
|
|
|
|
if (cycle_iters > iters)
|
|
cycle_iters = iters;
|
|
microtime(&start_tv);
|
|
while (scnt < iters || ccnt < iters) {
|
|
|
|
while (scnt < iters && scnt - ccnt < cb->txdepth) {
|
|
struct ib_send_wr *bad_wr;
|
|
|
|
if (scnt < cycle_iters)
|
|
post_cycles_start[scnt] = get_cycles();
|
|
if (ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr)) {
|
|
log(LOG_ERR, "Couldn't post send: scnt=%d\n",
|
|
scnt);
|
|
return;
|
|
}
|
|
if (scnt < cycle_iters)
|
|
post_cycles_stop[scnt] = get_cycles();
|
|
++scnt;
|
|
}
|
|
|
|
if (ccnt < iters) {
|
|
int ne;
|
|
struct ib_wc wc;
|
|
|
|
if (ccnt < cycle_iters)
|
|
poll_cycles_start[ccnt] = get_cycles();
|
|
do {
|
|
if (ccnt < cycle_iters)
|
|
last_poll_cycles_start[ccnt] = get_cycles();
|
|
ne = ib_poll_cq(cb->cq, 1, &wc);
|
|
} while (ne == 0);
|
|
if (ccnt < cycle_iters)
|
|
poll_cycles_stop[ccnt] = get_cycles();
|
|
ccnt += 1;
|
|
|
|
if (ne < 0) {
|
|
log(LOG_ERR, "poll CQ failed %d\n", ne);
|
|
return;
|
|
}
|
|
if (wc.status != IB_WC_SUCCESS) {
|
|
log(LOG_ERR, "Completion wth error at %s:\n",
|
|
cb->server ? "server" : "client");
|
|
log(LOG_ERR, "Failed status %d: wr_id %d\n",
|
|
wc.status, (int) wc.wr_id);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
microtime(&stop_tv);
|
|
|
|
if (stop_tv.tv_usec < start_tv.tv_usec) {
|
|
stop_tv.tv_usec += 1000000;
|
|
stop_tv.tv_sec -= 1;
|
|
}
|
|
|
|
for (i=0; i < cycle_iters; i++) {
|
|
sum_post += post_cycles_stop[i] - post_cycles_start[i];
|
|
sum_poll += poll_cycles_stop[i] - poll_cycles_start[i];
|
|
sum_last_poll += poll_cycles_stop[i] - last_poll_cycles_start[i];
|
|
}
|
|
|
|
log(LOG_ERR, "delta sec %lu delta usec %lu iter %d size %d cycle_iters %d sum_post %llu sum_poll %llu sum_last_poll %llu\n",
|
|
stop_tv.tv_sec - start_tv.tv_sec,
|
|
stop_tv.tv_usec - start_tv.tv_usec,
|
|
scnt, cb->size, cycle_iters,
|
|
(unsigned long long)sum_post, (unsigned long long)sum_poll,
|
|
(unsigned long long)sum_last_poll);
|
|
|
|
free_cycle_mem(post_cycles_start, post_cycles_stop, poll_cycles_start,
|
|
poll_cycles_stop, last_poll_cycles_start);
|
|
}
|
|
|
|
static void krping_rlat_test_server(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
|
|
/* Spin waiting for client's Start STAG/TO/Len */
|
|
while (cb->state < RDMA_READ_ADV) {
|
|
krping_cq_event_handler(cb->cq, cb);
|
|
}
|
|
|
|
/* Send STAG/TO/Len to client */
|
|
if (cb->dma_mr)
|
|
krping_format_send(cb, cb->start_addr, cb->dma_mr);
|
|
else
|
|
krping_format_send(cb, cb->start_addr, cb->start_mr);
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post send error %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for send completion */
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
|
|
if (ret < 0) {
|
|
log(LOG_ERR, "poll error %d\n", ret);
|
|
return;
|
|
}
|
|
if (wc.status) {
|
|
log(LOG_ERR, "send completiong error %d\n", wc.status);
|
|
return;
|
|
}
|
|
|
|
krping_wait(cb, ERROR);
|
|
}
|
|
|
|
static void krping_wlat_test_server(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
|
|
/* Spin waiting for client's Start STAG/TO/Len */
|
|
while (cb->state < RDMA_READ_ADV) {
|
|
krping_cq_event_handler(cb->cq, cb);
|
|
}
|
|
|
|
/* Send STAG/TO/Len to client */
|
|
if (cb->dma_mr)
|
|
krping_format_send(cb, cb->start_addr, cb->dma_mr);
|
|
else
|
|
krping_format_send(cb, cb->start_addr, cb->start_mr);
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post send error %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for send completion */
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
|
|
if (ret < 0) {
|
|
log(LOG_ERR, "poll error %d\n", ret);
|
|
return;
|
|
}
|
|
if (wc.status) {
|
|
log(LOG_ERR, "send completiong error %d\n", wc.status);
|
|
return;
|
|
}
|
|
|
|
wlat_test(cb);
|
|
|
|
}
|
|
|
|
static void krping_bw_test_server(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
|
|
/* Spin waiting for client's Start STAG/TO/Len */
|
|
while (cb->state < RDMA_READ_ADV) {
|
|
krping_cq_event_handler(cb->cq, cb);
|
|
}
|
|
|
|
/* Send STAG/TO/Len to client */
|
|
if (cb->dma_mr)
|
|
krping_format_send(cb, cb->start_addr, cb->dma_mr);
|
|
else
|
|
krping_format_send(cb, cb->start_addr, cb->start_mr);
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post send error %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for send completion */
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
|
|
if (ret < 0) {
|
|
log(LOG_ERR, "poll error %d\n", ret);
|
|
return;
|
|
}
|
|
if (wc.status) {
|
|
log(LOG_ERR, "send completiong error %d\n", wc.status);
|
|
return;
|
|
}
|
|
|
|
if (cb->duplex)
|
|
bw_test(cb);
|
|
krping_wait(cb, ERROR);
|
|
}
|
|
|
|
static int krping_bind_server(struct krping_cb *cb)
|
|
{
|
|
struct sockaddr_in sin;
|
|
int ret;
|
|
|
|
memset(&sin, 0, sizeof(sin));
|
|
sin.sin_len = sizeof sin;
|
|
sin.sin_family = AF_INET;
|
|
sin.sin_addr.s_addr = cb->addr.s_addr;
|
|
sin.sin_port = cb->port;
|
|
|
|
ret = rdma_bind_addr(cb->cm_id, (struct sockaddr *) &sin);
|
|
if (ret) {
|
|
log(LOG_ERR, "rdma_bind_addr error %d\n", ret);
|
|
return ret;
|
|
}
|
|
DEBUG_LOG(PFX "rdma_bind_addr successful\n");
|
|
|
|
DEBUG_LOG(PFX "rdma_listen\n");
|
|
ret = rdma_listen(cb->cm_id, 3);
|
|
if (ret) {
|
|
log(LOG_ERR, "rdma_listen failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
krping_wait(cb, CONNECT_REQUEST);
|
|
if (cb->state != CONNECT_REQUEST) {
|
|
log(LOG_ERR, "wait for CONNECT_REQUEST state %d\n",
|
|
cb->state);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void krping_run_server(struct krping_cb *cb)
|
|
{
|
|
struct ib_recv_wr *bad_wr;
|
|
int ret;
|
|
|
|
ret = krping_bind_server(cb);
|
|
if (ret)
|
|
return;
|
|
|
|
ret = krping_setup_qp(cb, cb->child_cm_id);
|
|
if (ret) {
|
|
log(LOG_ERR, "setup_qp failed: %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
ret = krping_setup_buffers(cb);
|
|
if (ret) {
|
|
log(LOG_ERR, "krping_setup_buffers failed: %d\n", ret);
|
|
goto err1;
|
|
}
|
|
|
|
ret = ib_post_recv(cb->qp, &cb->rq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "ib_post_recv failed: %d\n", ret);
|
|
goto err2;
|
|
}
|
|
|
|
ret = krping_accept(cb);
|
|
if (ret) {
|
|
log(LOG_ERR, "connect error %d\n", ret);
|
|
goto err2;
|
|
}
|
|
|
|
if (cb->wlat)
|
|
krping_wlat_test_server(cb);
|
|
else if (cb->rlat)
|
|
krping_rlat_test_server(cb);
|
|
else if (cb->bw)
|
|
krping_bw_test_server(cb);
|
|
else
|
|
krping_test_server(cb);
|
|
|
|
rdma_disconnect(cb->child_cm_id);
|
|
rdma_destroy_id(cb->child_cm_id);
|
|
err2:
|
|
krping_free_buffers(cb);
|
|
err1:
|
|
krping_free_qp(cb);
|
|
}
|
|
|
|
static void krping_test_client(struct krping_cb *cb)
|
|
{
|
|
int ping, start, cc, i, ret;
|
|
struct ib_send_wr *bad_wr;
|
|
unsigned char c;
|
|
|
|
start = 65;
|
|
for (ping = 0; !cb->count || ping < cb->count; ping++) {
|
|
cb->state = RDMA_READ_ADV;
|
|
|
|
/* Put some ascii text in the buffer. */
|
|
cc = sprintf(cb->start_buf, "rdma-ping-%d: ", ping);
|
|
for (i = cc, c = start; i < cb->size; i++) {
|
|
cb->start_buf[i] = c;
|
|
c++;
|
|
if (c > 122)
|
|
c = 65;
|
|
}
|
|
start++;
|
|
if (start > 122)
|
|
start = 65;
|
|
cb->start_buf[cb->size - 1] = 0;
|
|
|
|
if (cb->dma_mr)
|
|
krping_format_send(cb, cb->start_addr, cb->dma_mr);
|
|
else
|
|
krping_format_send(cb, cb->start_addr, cb->start_mr);
|
|
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post send error %d\n", ret);
|
|
break;
|
|
}
|
|
|
|
/* Wait for server to ACK */
|
|
krping_wait(cb, RDMA_WRITE_ADV);
|
|
if (cb->state != RDMA_WRITE_ADV) {
|
|
log(LOG_ERR,
|
|
"wait for RDMA_WRITE_ADV state %d\n",
|
|
cb->state);
|
|
break;
|
|
}
|
|
|
|
if (cb->dma_mr)
|
|
krping_format_send(cb, cb->rdma_addr, cb->dma_mr);
|
|
else
|
|
krping_format_send(cb, cb->rdma_addr, cb->rdma_mr);
|
|
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post send error %d\n", ret);
|
|
break;
|
|
}
|
|
|
|
/* Wait for the server to say the RDMA Write is complete. */
|
|
krping_wait(cb, RDMA_WRITE_COMPLETE);
|
|
if (cb->state != RDMA_WRITE_COMPLETE) {
|
|
log(LOG_ERR,
|
|
"wait for RDMA_WRITE_COMPLETE state %d\n",
|
|
cb->state);
|
|
break;
|
|
}
|
|
|
|
if (cb->validate)
|
|
if (memcmp(cb->start_buf, cb->rdma_buf, cb->size)) {
|
|
log(LOG_ERR, "data mismatch!\n");
|
|
break;
|
|
}
|
|
|
|
if (cb->verbose)
|
|
DEBUG_LOG("ping data: %s\n", cb->rdma_buf);
|
|
}
|
|
}
|
|
|
|
static void krping_rlat_test_client(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
|
|
cb->state = RDMA_READ_ADV;
|
|
|
|
/* Send STAG/TO/Len to client */
|
|
if (cb->dma_mr)
|
|
krping_format_send(cb, cb->start_addr, cb->dma_mr);
|
|
else
|
|
krping_format_send(cb, cb->start_addr, cb->rdma_mr);
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post send error %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for send completion */
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
|
|
if (ret < 0) {
|
|
log(LOG_ERR, "poll error %d\n", ret);
|
|
return;
|
|
}
|
|
if (wc.status) {
|
|
log(LOG_ERR, "send completion error %d\n", wc.status);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for server's Start STAG/TO/Len */
|
|
while (cb->state < RDMA_WRITE_ADV) {
|
|
krping_cq_event_handler(cb->cq, cb);
|
|
}
|
|
|
|
#if 0
|
|
{
|
|
int i;
|
|
struct timeval start, stop;
|
|
time_t sec;
|
|
suseconds_t usec;
|
|
unsigned long long elapsed;
|
|
struct ib_wc wc;
|
|
struct ib_send_wr *bad_wr;
|
|
int ne;
|
|
|
|
cb->rdma_sq_wr.opcode = IB_WR_RDMA_WRITE;
|
|
cb->rdma_sq_wr.wr.rdma.rkey = cb->remote_rkey;
|
|
cb->rdma_sq_wr.wr.rdma.remote_addr = cb->remote_addr;
|
|
cb->rdma_sq_wr.sg_list->length = 0;
|
|
cb->rdma_sq_wr.num_sge = 0;
|
|
|
|
microtime(&start);
|
|
for (i=0; i < 100000; i++) {
|
|
if (ib_post_send(cb->qp, &cb->rdma_sq_wr, &bad_wr)) {
|
|
log(LOG_ERR, "Couldn't post send\n");
|
|
return;
|
|
}
|
|
do {
|
|
ne = ib_poll_cq(cb->cq, 1, &wc);
|
|
} while (ne == 0);
|
|
if (ne < 0) {
|
|
log(LOG_ERR, "poll CQ failed %d\n", ne);
|
|
return;
|
|
}
|
|
if (wc.status != IB_WC_SUCCESS) {
|
|
log(LOG_ERR, "Completion wth error at %s:\n",
|
|
cb->server ? "server" : "client");
|
|
log(LOG_ERR, "Failed status %d: wr_id %d\n",
|
|
wc.status, (int) wc.wr_id);
|
|
return;
|
|
}
|
|
}
|
|
microtime(&stop);
|
|
|
|
if (stop.tv_usec < start.tv_usec) {
|
|
stop.tv_usec += 1000000;
|
|
stop.tv_sec -= 1;
|
|
}
|
|
sec = stop.tv_sec - start.tv_sec;
|
|
usec = stop.tv_usec - start.tv_usec;
|
|
elapsed = sec * 1000000 + usec;
|
|
log(LOG_ERR, "0B-write-lat iters 100000 usec %llu\n", elapsed);
|
|
}
|
|
#endif
|
|
|
|
rlat_test(cb);
|
|
}
|
|
|
|
static void krping_wlat_test_client(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
|
|
cb->state = RDMA_READ_ADV;
|
|
|
|
/* Send STAG/TO/Len to client */
|
|
if (cb->dma_mr)
|
|
krping_format_send(cb, cb->start_addr, cb->dma_mr);
|
|
else
|
|
krping_format_send(cb, cb->start_addr, cb->start_mr);
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post send error %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for send completion */
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
|
|
if (ret < 0) {
|
|
log(LOG_ERR, "poll error %d\n", ret);
|
|
return;
|
|
}
|
|
if (wc.status) {
|
|
log(LOG_ERR, "send completion error %d\n", wc.status);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for server's Start STAG/TO/Len */
|
|
while (cb->state < RDMA_WRITE_ADV) {
|
|
krping_cq_event_handler(cb->cq, cb);
|
|
}
|
|
|
|
wlat_test(cb);
|
|
}
|
|
|
|
static void krping_bw_test_client(struct krping_cb *cb)
|
|
{
|
|
struct ib_send_wr *bad_wr;
|
|
struct ib_wc wc;
|
|
int ret;
|
|
|
|
cb->state = RDMA_READ_ADV;
|
|
|
|
/* Send STAG/TO/Len to client */
|
|
if (cb->dma_mr)
|
|
krping_format_send(cb, cb->start_addr, cb->dma_mr);
|
|
else
|
|
krping_format_send(cb, cb->start_addr, cb->start_mr);
|
|
ret = ib_post_send(cb->qp, &cb->sq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "post send error %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for send completion */
|
|
while ((ret = ib_poll_cq(cb->cq, 1, &wc) == 0));
|
|
if (ret < 0) {
|
|
log(LOG_ERR, "poll error %d\n", ret);
|
|
return;
|
|
}
|
|
if (wc.status) {
|
|
log(LOG_ERR, "send completion error %d\n", wc.status);
|
|
return;
|
|
}
|
|
|
|
/* Spin waiting for server's Start STAG/TO/Len */
|
|
while (cb->state < RDMA_WRITE_ADV) {
|
|
krping_cq_event_handler(cb->cq, cb);
|
|
}
|
|
|
|
bw_test(cb);
|
|
}
|
|
|
|
static int krping_connect_client(struct krping_cb *cb)
|
|
{
|
|
struct rdma_conn_param conn_param;
|
|
int ret;
|
|
|
|
memset(&conn_param, 0, sizeof conn_param);
|
|
conn_param.responder_resources = 1;
|
|
conn_param.initiator_depth = 1;
|
|
conn_param.retry_count = 10;
|
|
|
|
ret = rdma_connect(cb->cm_id, &conn_param);
|
|
if (ret) {
|
|
log(LOG_ERR, "rdma_connect error %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
krping_wait(cb, CONNECTED);
|
|
if (cb->state == ERROR) {
|
|
log(LOG_ERR, "wait for CONNECTED state %d\n", cb->state);
|
|
return -1;
|
|
}
|
|
|
|
DEBUG_LOG(PFX "rdma_connect successful\n");
|
|
return 0;
|
|
}
|
|
|
|
static int krping_bind_client(struct krping_cb *cb)
|
|
{
|
|
struct sockaddr_in sin;
|
|
int ret;
|
|
|
|
memset(&sin, 0, sizeof(sin));
|
|
sin.sin_len = sizeof sin;
|
|
sin.sin_family = AF_INET;
|
|
sin.sin_addr.s_addr = cb->addr.s_addr;
|
|
sin.sin_port = cb->port;
|
|
|
|
ret = rdma_resolve_addr(cb->cm_id, NULL, (struct sockaddr *) &sin,
|
|
2000);
|
|
if (ret) {
|
|
log(LOG_ERR, "rdma_resolve_addr error %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
krping_wait(cb, ROUTE_RESOLVED);
|
|
if (cb->state != ROUTE_RESOLVED) {
|
|
log(LOG_ERR,
|
|
"addr/route resolution did not resolve: state %d\n",
|
|
cb->state);
|
|
return EINTR;
|
|
}
|
|
|
|
DEBUG_LOG(PFX "rdma_resolve_addr - rdma_resolve_route successful\n");
|
|
return 0;
|
|
}
|
|
|
|
static void krping_run_client(struct krping_cb *cb)
|
|
{
|
|
struct ib_recv_wr *bad_wr;
|
|
int ret;
|
|
|
|
ret = krping_bind_client(cb);
|
|
if (ret)
|
|
return;
|
|
|
|
ret = krping_setup_qp(cb, cb->cm_id);
|
|
if (ret) {
|
|
log(LOG_ERR, "setup_qp failed: %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
ret = krping_setup_buffers(cb);
|
|
if (ret) {
|
|
log(LOG_ERR, "krping_setup_buffers failed: %d\n", ret);
|
|
goto err1;
|
|
}
|
|
|
|
ret = ib_post_recv(cb->qp, &cb->rq_wr, &bad_wr);
|
|
if (ret) {
|
|
log(LOG_ERR, "ib_post_recv failed: %d\n", ret);
|
|
goto err2;
|
|
}
|
|
|
|
ret = krping_connect_client(cb);
|
|
if (ret) {
|
|
log(LOG_ERR, "connect error %d\n", ret);
|
|
goto err2;
|
|
}
|
|
|
|
if (cb->wlat)
|
|
krping_wlat_test_client(cb);
|
|
else if (cb->rlat)
|
|
krping_rlat_test_client(cb);
|
|
else if (cb->bw)
|
|
krping_bw_test_client(cb);
|
|
else
|
|
krping_test_client(cb);
|
|
rdma_disconnect(cb->cm_id);
|
|
err2:
|
|
krping_free_buffers(cb);
|
|
err1:
|
|
krping_free_qp(cb);
|
|
}
|
|
|
|
int krping_doit(char *cmd)
|
|
{
|
|
struct krping_cb *cb;
|
|
int op;
|
|
int ret = 0;
|
|
char *optarg;
|
|
unsigned long optint;
|
|
debug = 0;
|
|
|
|
cb = malloc(sizeof(*cb), M_DEVBUF, M_WAITOK);
|
|
if (!cb)
|
|
return ENOMEM;
|
|
bzero(cb, sizeof *cb);
|
|
|
|
mtx_lock(&krping_mutex);
|
|
TAILQ_INSERT_TAIL(&krping_cbs, cb, list);
|
|
mtx_unlock(&krping_mutex);
|
|
|
|
cb->server = -1;
|
|
cb->state = IDLE;
|
|
cb->size = 64;
|
|
cb->txdepth = RPING_SQ_DEPTH;
|
|
mtx_init(&cb->lock, "krping mtx", NULL, MTX_DUPOK|MTX_DEF);
|
|
|
|
while ((op = krping_getopt("krping", &cmd, krping_opts, NULL, &optarg,
|
|
&optint)) != 0) {
|
|
switch (op) {
|
|
case 'a':
|
|
cb->addr_str = optarg;
|
|
DEBUG_LOG(PFX "ipaddr (%s)\n", optarg);
|
|
if (!inet_aton(optarg, &cb->addr)) {
|
|
log(LOG_ERR, "bad addr string %s\n", optarg);
|
|
ret = EINVAL;
|
|
}
|
|
break;
|
|
case 'D':
|
|
cb->use_dmamr = 1;
|
|
DEBUG_LOG(PFX "using dma mr\n");
|
|
break;
|
|
case 'p':
|
|
cb->port = htons(optint);
|
|
DEBUG_LOG(PFX "port %d\n", (int)optint);
|
|
break;
|
|
case 'P':
|
|
cb->poll = 1;
|
|
DEBUG_LOG("server\n");
|
|
break;
|
|
case 's':
|
|
cb->server = 1;
|
|
DEBUG_LOG(PFX "server\n");
|
|
break;
|
|
case 'c':
|
|
cb->server = 0;
|
|
DEBUG_LOG(PFX "client\n");
|
|
break;
|
|
case 'S':
|
|
cb->size = optint;
|
|
if ((cb->size < 1) ||
|
|
(cb->size > RPING_BUFSIZE)) {
|
|
log(LOG_ERR, "Invalid size %d "
|
|
"(valid range is 1 to %d)\n",
|
|
cb->size, RPING_BUFSIZE);
|
|
ret = EINVAL;
|
|
} else
|
|
DEBUG_LOG(PFX "size %d\n", (int)optint);
|
|
break;
|
|
case 'C':
|
|
cb->count = optint;
|
|
if (cb->count < 0) {
|
|
log(LOG_ERR, "Invalid count %d\n",
|
|
cb->count);
|
|
ret = EINVAL;
|
|
} else
|
|
DEBUG_LOG(PFX "count %d\n", (int) cb->count);
|
|
break;
|
|
case 'v':
|
|
cb->verbose++;
|
|
DEBUG_LOG(PFX "verbose\n");
|
|
break;
|
|
case 'V':
|
|
cb->validate++;
|
|
DEBUG_LOG(PFX "validate data\n");
|
|
break;
|
|
case 'L':
|
|
cb->rlat++;
|
|
break;
|
|
case 'l':
|
|
cb->wlat++;
|
|
break;
|
|
case 'B':
|
|
cb->bw++;
|
|
break;
|
|
case 't':
|
|
cb->txdepth = optint;
|
|
DEBUG_LOG(PFX "txdepth %d\n", cb->txdepth);
|
|
break;
|
|
case 'd':
|
|
debug++;
|
|
break;
|
|
default:
|
|
log(LOG_ERR, "unknown opt %s\n", optarg);
|
|
ret = EINVAL;
|
|
break;
|
|
}
|
|
}
|
|
if (ret)
|
|
goto out;
|
|
|
|
if (cb->server == -1) {
|
|
log(LOG_ERR, "must be either client or server\n");
|
|
ret = EINVAL;
|
|
goto out;
|
|
}
|
|
if ((cb->bw + cb->rlat + cb->wlat) > 1) {
|
|
log(LOG_ERR, "Pick only one test: bw, rlat, wlat\n");
|
|
ret = EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
|
|
cb->cm_id = rdma_create_id(krping_cma_event_handler, cb, RDMA_PS_TCP);
|
|
if (IS_ERR(cb->cm_id)) {
|
|
ret = PTR_ERR(cb->cm_id);
|
|
log(LOG_ERR, "rdma_create_id error %d\n", ret);
|
|
goto out;
|
|
}
|
|
DEBUG_LOG(PFX "created cm_id %p\n", cb->cm_id);
|
|
if (cb->server)
|
|
krping_run_server(cb);
|
|
else
|
|
krping_run_client(cb);
|
|
DEBUG_LOG(PFX "destroy cm_id %p\n", cb->cm_id);
|
|
rdma_destroy_id(cb->cm_id);
|
|
out:
|
|
mtx_lock(&krping_mutex);
|
|
TAILQ_REMOVE(&krping_cbs, cb, list);
|
|
mtx_unlock(&krping_mutex);
|
|
free(cb, M_DEVBUF);
|
|
return ret;
|
|
}
|
|
|
|
void krping_init(void)
|
|
{
|
|
mtx_init(&krping_mutex, "krping lock", NULL, MTX_DEF);
|
|
TAILQ_INIT(&krping_cbs);
|
|
}
|