C++程序
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3799行
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122.07 KB
/****************************************************************/
/* */
/* nettest_dlpi.c */
/* */
/* the actual test routines... */
/* */
/* send_dlpi_co_stream() perform a CO DLPI stream test */
/* recv_dlpi_co_stream() */
/* send_dlpi_co_rr() perform a CO DLPI req/res */
/* recv_dlpi_co_rr() */
/* send_dlpi_cl_stream() perform a CL DLPI stream test */
/* recv_dlpi_cl_stream() */
/* send_dlpi_cl_rr() perform a CL DLPI req/res */
/* recv_dlpi_cl_rr() */
/* */
/****************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef WANT_DLPI
char nettest_dlpi_id[]="\
@(#)nettest_dlpi.c (c) Copyright 1993,1995,2004 Hewlett-Packard Co. Version 2.4.3";
#include <sys/types.h>
#include <fcntl.h>
#include <errno.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <malloc.h>
#include <sys/stream.h>
#include <sys/stropts.h>
#include <sys/poll.h>
#ifdef __osf__
#include <sys/dlpihdr.h>
#else /* __osf__ */
#include <sys/dlpi.h>
#ifdef __hpux__
#include <sys/dlpi_ext.h>
#endif /* __hpux__ */
#endif /* __osf__ */
#include "netlib.h"
#include "netsh.h"
#include "nettest_dlpi.h"
/* these are some variables global to all the DLPI tests. declare */
/* them static to make them global only to this file */
static int
rsw_size, /* remote send window size */
rrw_size, /* remote recv window size */
lsw_size, /* local send window size */
lrw_size, /* local recv window size */
req_size = 100, /* request size */
rsp_size = 200, /* response size */
send_size, /* how big are individual sends */
recv_size; /* how big are individual receives */
int
loc_ppa = 4, /* the ppa for the local interface, */
/* as shown as the NM Id in lanscan */
rem_ppa = 4, /* the ppa for the remote interface */
dlpi_sap = 84; /* which 802.2 SAP should we use? */
char loc_dlpi_device[32] = "/dev/dlpi";
char rem_dlpi_device[32] = "/dev/dlpi";
char dlpi_usage[] = "\n\
Usage: netperf [global options] -- [test options] \n\
\n\
CO/CL DLPI Test Options:\n\
-D dev[,dev] Set the local/remote DLPI device file name\n\
-h Display this text\n\
-M bytes Set the recv size (DLCO_STREAM, DLCL_STREAM)\n\
-m bytes Set the send size (DLCO_STREAM, DLCL_STREAM)\n\
-p loc[,rem] Set the local/remote PPA for the test\n\
-R bytes Set response size (DLCO_RR, DLCL_RR)\n\
-r bytes Set request size (DLCO_RR, DLCL_RR)\n\
-s sap Set the 802.2 sap for the test\n\
-W send[,recv] Set remote send/recv window sizes\n\
-w send[,recv] Set local send/recv window sizes\n\
\n\
For those options taking two parms, at least one must be specified;\n\
specifying one value without a comma will set both parms to that\n\
value, specifying a value with a leading comma will set just the second\n\
parm, a value with a trailing comma will set just the first. To set\n\
each parm to unique values, specify both and separate them with a\n\
comma.\n";
/* This routine implements the CO unidirectional data transfer test */
/* (a.k.a. stream) for the sockets interface. It receives its */
/* parameters via global variables from the shell and writes its */
/* output to the standard output. */
void
send_dlpi_co_stream()
{
char *tput_title = "\
Recv Send Send \n\
Window Window Message Elapsed \n\
Size Size Size Time Throughput \n\
frames frames bytes secs. %s/sec \n\n";
char *tput_fmt_0 =
"%7.2f\n";
char *tput_fmt_1 =
"%5d %5d %6d %-6.2f %7.2f \n";
char *cpu_title = "\
Recv Send Send Utilization Service Demand\n\
Window Window Message Elapsed Send Recv Send Recv\n\
Size Size Size Time Throughput local remote local remote\n\
frames frames bytes secs. %-8.8s/s %% %% us/KB us/KB\n\n";
char *cpu_fmt_0 =
"%6.3f\n";
char *cpu_fmt_1 =
"%5d %5d %6d %-6.2f %7.2f %-6.2f %-6.2f %-6.3f %-6.3f\n";
char *ksink_fmt = "\n\
Alignment Offset %-8.8s %-8.8s Sends %-8.8s Recvs\n\
Local Remote Local Remote Xfered Per Per\n\
Send Recv Send Recv Send (avg) Recv (avg)\n\
%5d %5d %5d %5d %6.4g %6.2f %6d %6.2f %6d\n";
float elapsed_time;
#ifdef WANT_INTERVALS
int interval_count;
#endif /* WANT_INTERVALS */
/* what we want is to have a buffer space that is at least one */
/* send-size greater than our send window. this will insure that we */
/* are never trying to re-use a buffer that may still be in the hands */
/* of the transport. This buffer will be malloc'd after we have found */
/* the size of the local senc socket buffer. We will want to deal */
/* with alignment and offset concerns as well. */
struct ring_elt *send_ring;
char *message;
char *message_ptr;
struct strbuf send_message;
char dlsap[BUFSIZ];
int dlsap_len;
int *message_int_ptr;
int message_offset;
int malloc_size;
int len;
int nummessages;
int send_descriptor;
int bytes_remaining;
/* with links like fddi, one can send > 32 bits worth of bytes */
/* during a test... ;-) */
double bytes_sent;
#ifdef DIRTY
int i;
#endif /* DIRTY */
float local_cpu_utilization;
float local_service_demand;
float remote_cpu_utilization;
float remote_service_demand;
double thruput;
struct dlpi_co_stream_request_struct *dlpi_co_stream_request;
struct dlpi_co_stream_response_struct *dlpi_co_stream_response;
struct dlpi_co_stream_results_struct *dlpi_co_stream_result;
dlpi_co_stream_request =
(struct dlpi_co_stream_request_struct *)netperf_request.content.test_specific_data;
dlpi_co_stream_response =
(struct dlpi_co_stream_response_struct *)netperf_response.content.test_specific_data;
dlpi_co_stream_result =
(struct dlpi_co_stream_results_struct *)netperf_response.content.test_specific_data;
if ( print_headers ) {
fprintf(where,"DLPI CO STREAM TEST\n");
if (local_cpu_usage || remote_cpu_usage)
fprintf(where,cpu_title,format_units());
else
fprintf(where,tput_title,format_units());
}
/* initialize a few counters */
nummessages = 0;
bytes_sent = 0.0;
times_up = 0;
/*set up the data descriptor */
send_descriptor = dl_open(loc_dlpi_device,loc_ppa);
if (send_descriptor < 0){
perror("netperf: send_dlpi_co_stream: dlpi stream data descriptor");
exit(1);
}
/* bind the puppy and get the assigned dlsap */
dlsap_len = BUFSIZ;
if (dl_bind(send_descriptor,
dlpi_sap, DL_CODLS, dlsap, &dlsap_len) != 0) {
fprintf(where,"send_dlpi_co_rr: bind failure\n");
fflush(where);
exit(1);
}
if (debug) {
fprintf(where,"send_dlpi_co_stream: send_descriptor obtained...\n");
}
#ifdef DL_HP_SET_LOCAL_WIN_REQ
if (lsw_size > 0) {
if (debug > 1) {
fprintf(where,"netperf: send_dlpi_co_stream: window send size altered from system default...\n");
fprintf(where," send: %d\n",lsw_size);
}
}
if (lrw_size > 0) {
if (debug > 1) {
fprintf(where,
"netperf: send_dlpi_co_stream: window recv size altered from system default...\n");
fprintf(where," recv: %d\n",lrw_size);
}
}
/* Now, we will find-out what the size actually became, and report */
/* that back to the user. If the call fails, we will just report a -1 */
/* back to the initiator for the recv buffer size. */
if (debug) {
fprintf(where,
"netperf: send_dlpi_co_stream: window sizes determined...\n");
fprintf(where," send: %d recv: %d\n",lsw_size,lrw_size);
ffluch(where);
}
#else /* DL_HP_SET_LOCAL_WIN_REQ */
lsw_size = -1;
lrw_size = -1;
#endif /* DL_HP_SET_LOCAL_WIN_REQ */
/* we should pick a default send_size, it should not be larger than */
/* the min of the two interface MTU's, and should perhaps default to */
/* the Interface MTU, but for now, we will default it to 1024... if */
/* someone wants to change this, the should change the corresponding */
/* lines in the recv_dlpi_co_stream routine */
if (send_size == 0) {
send_size = 1024;
}
/* set-up the data buffer with the requested alignment and offset. */
/* After we have calculated the proper starting address, we want to */
/* put that back into the message variable so we go back to the */
/* proper place. note that this means that only the first send is */
/* guaranteed to be at the alignment specified by the -a parameter. I */
/* think that this is a little more "real-world" than what was found */
/* in previous versions. note also that we have allocated a quantity */
/* of memory that is at least one send-size greater than our socket */
/* buffer size. We want to be sure that there are at least two */
/* buffers allocated - this can be a bit of a problem when the */
/* send_size is bigger than the socket size, so we must check... the */
/* user may have wanted to explicitly set the "width" of our send */
/* buffers, we should respect that wish... */
if (send_width == 0) {
send_width = (lsw_size/send_size) + 1;
if (send_width == 1) send_width++;
}
send_ring = allocate_buffer_ring(send_width,
send_size,
local_send_align,
local_send_offset);
send_message.maxlen = send_size;
send_message.len = send_size;
send_message.buf = send_ring->buffer_ptr;
/* If the user has requested cpu utilization measurements, we must */
/* calibrate the cpu(s). We will perform this task within the tests */
/* themselves. If the user has specified the cpu rate, then */
/* calibrate_local_cpu will return rather quickly as it will have */
/* nothing to do. If local_cpu_rate is zero, then we will go through */
/* all the "normal" calibration stuff and return the rate back.*/
if (local_cpu_usage) {
local_cpu_rate = calibrate_local_cpu(local_cpu_rate);
}
/* Tell the remote end to do a listen. The server alters the socket */
/* paramters on the other side at this point, hence the reason for */
/* all the values being passed in the setup message. If the user did */
/* not specify any of the parameters, they will be passed as 0, which */
/* will indicate to the remote that no changes beyond the system's */
/* default should be used. */
netperf_request.content.request_type = DO_DLPI_CO_STREAM;
dlpi_co_stream_request->send_win_size = rsw_size;
dlpi_co_stream_request->recv_win_size = rrw_size;
dlpi_co_stream_request->receive_size = recv_size;
dlpi_co_stream_request->recv_alignment= remote_recv_align;
dlpi_co_stream_request->recv_offset = remote_recv_offset;
dlpi_co_stream_request->measure_cpu = remote_cpu_usage;
dlpi_co_stream_request->cpu_rate = remote_cpu_rate;
dlpi_co_stream_request->ppa = rem_ppa;
dlpi_co_stream_request->sap = dlpi_sap;
dlpi_co_stream_request->dev_name_len = strlen(rem_dlpi_device);
strcpy(dlpi_co_stream_request->dlpi_device,
rem_dlpi_device);
#ifdef __alpha
/* ok - even on a DEC box, strings are strings. I didn't really want */
/* to ntohl the words of a string. since I don't want to teach the */
/* send_ and recv_ _request and _response routines about the types, */
/* I will put "anti-ntohl" calls here. I imagine that the "pure" */
/* solution would be to use XDR, but I am still leary of being able */
/* to find XDR libs on all platforms I want running netperf. raj */
{
int *charword;
int *initword;
int *lastword;
initword = (int *) dlpi_co_stream_request->dlpi_device;
lastword = initword + ((strlen(rem_dlpi_device) + 3) / 4);
for (charword = initword;
charword < lastword;
charword++) {
*charword = ntohl(*charword);
}
}
#endif /* __alpha */
if (test_time) {
dlpi_co_stream_request->test_length = test_time;
}
else {
dlpi_co_stream_request->test_length = test_bytes;
}
#ifdef DIRTY
dlpi_co_stream_request->dirty_count = rem_dirty_count;
dlpi_co_stream_request->clean_count = rem_clean_count;
#endif /* DIRTY */
if (debug > 1) {
fprintf(where,
"netperf: send_dlpi_co_stream: requesting DLPI CO stream test\n");
}
send_request();
/* The response from the remote will contain all of the relevant */
/* parameters for this test type. We will put them back into */
/* the variables here so they can be displayed if desired. The */
/* remote will have calibrated CPU if necessary, and will have done */
/* all the needed set-up we will have calibrated the cpu locally */
/* before sending the request, and will grab the counter value right */
/* after the connect returns. The remote will grab the counter right */
/* after the accept call. This saves the hassle of extra messages */
/* being sent for the TCP tests. */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"remote listen done.\n");
rrw_size = dlpi_co_stream_response->recv_win_size;
rsw_size = dlpi_co_stream_response->send_win_size;
remote_cpu_usage= dlpi_co_stream_response->measure_cpu;
remote_cpu_rate = dlpi_co_stream_response->cpu_rate;
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("netperf: remote error");
exit(1);
}
/* Connect up to the remote port on the data descriptor */
if(dl_connect(send_descriptor,
dlpi_co_stream_response->station_addr,
dlpi_co_stream_response->station_addr_len) != 0) {
fprintf(where,"recv_dlpi_co_stream: connect failure\n");
fflush(where);
exit(1);
}
/* Data Socket set-up is finished. If there were problems, either the */
/* connect would have failed, or the previous response would have */
/* indicated a problem. I failed to see the value of the extra */
/* message after the accept on the remote. If it failed, we'll see it */
/* here. If it didn't, we might as well start pumping data. */
/* Set-up the test end conditions. For a stream test, they can be */
/* either time or byte-count based. */
if (test_time) {
/* The user wanted to end the test after a period of time. */
times_up = 0;
bytes_remaining = 0;
start_timer(test_time);
}
else {
/* The tester wanted to send a number of bytes. */
bytes_remaining = test_bytes;
times_up = 1;
}
/* The cpu_start routine will grab the current time and possibly */
/* value of the idle counter for later use in measuring cpu */
/* utilization and/or service demand and thruput. */
cpu_start(local_cpu_usage);
/* We use an "OR" to control test execution. When the test is */
/* controlled by time, the byte count check will always return false. */
/* When the test is controlled by byte count, the time test will */
/* always return false. When the test is finished, the whole */
/* expression will go false and we will stop sending data. */
#ifdef DIRTY
/* initialize the random number generator for putting dirty stuff */
/* into the send buffer. raj */
srand((int) getpid());
#endif /* DIRTY */
while ((!times_up) || (bytes_remaining > 0)) {
#ifdef DIRTY
/* we want to dirty some number of consecutive integers in the buffer */
/* we are about to send. we may also want to bring some number of */
/* them cleanly into the cache. The clean ones will follow any dirty */
/* ones into the cache. */
message_int_ptr = (int *)message_ptr;
for (i = 0; i < loc_dirty_count; i++) {
*message_int_ptr = rand();
message_int_ptr++;
}
for (i = 0; i < loc_clean_count; i++) {
loc_dirty_count = *message_int_ptr;
message_int_ptr++;
}
#endif /* DIRTY */
if((putmsg(send_descriptor,
0,
&send_message,
0)) != 0) {
if (errno == EINTR)
break;
perror("netperf: data send error");
exit(1);
}
send_ring = send_ring->next;
send_message.buf = send_ring->buffer_ptr;
#ifdef WANT_INTERVALS
for (interval_count = 0;
interval_count < interval_wate;
interval_count++);
#endif /* WANT_INTERVALS */
if (debug > 4) {
fprintf(where,"netperf: send_clpi_co_stream: putmsg called ");
fprintf(where,"len is %d\n",send_message.len);
fflush(where);
}
nummessages++;
if (bytes_remaining) {
bytes_remaining -= send_size;
}
}
/* The test is over. Flush the buffers to the remote end. We do a */
/* graceful release to insure that all data has been taken by the */
/* remote. this needs a little work - there is no three-way */
/* handshake with type two as there is with TCP, so there really */
/* should be a message exchange here. however, we will finesse it by */
/* saying that the tests shoudl run for a while. */
if (debug) {
fprintf(where,"sending test end signal \n");
fflush(where);
}
send_message.len = (send_size - 1);
if (send_message.len == 0) send_message.len = 2;
if((putmsg(send_descriptor,
0,
&send_message,
0)) != 0) {
perror("netperf: data send error");
exit(1);
}
/* this call will always give us the elapsed time for the test, and */
/* will also store-away the necessaries for cpu utilization */
cpu_stop(local_cpu_usage,&elapsed_time); /* was cpu being measured? */
/* how long did we really run? */
/* Get the statistics from the remote end. The remote will have */
/* calculated service demand and all those interesting things. If it */
/* wasn't supposed to care, it will return obvious values. */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"remote results obtained\n");
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("netperf: remote error");
exit(1);
}
/* We now calculate what our thruput was for the test. In the future, */
/* we may want to include a calculation of the thruput measured by */
/* the remote, but it should be the case that for a TCP stream test, */
/* that the two numbers should be *very* close... We calculate */
/* bytes_sent regardless of the way the test length was controlled. */
/* If it was time, we needed to, and if it was by bytes, the user may */
/* have specified a number of bytes that wasn't a multiple of the */
/* send_size, so we really didn't send what he asked for ;-) */
bytes_sent = ((double) send_size * (double) nummessages) + (double) len;
thruput = calc_thruput(bytes_sent);
if (local_cpu_usage || remote_cpu_usage) {
/* We must now do a little math for service demand and cpu */
/* utilization for the system(s) */
/* Of course, some of the information might be bogus because */
/* there was no idle counter in the kernel(s). We need to make */
/* a note of this for the user's benefit...*/
if (local_cpu_usage) {
if (local_cpu_rate == 0.0) {
fprintf(where,
"WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n");
fprintf(where,
"Local CPU usage numbers based on process information only!\n");
fflush(where);
}
local_cpu_utilization = calc_cpu_util(0.0);
local_service_demand = calc_service_demand(bytes_sent,
0.0,
0.0,
0);
}
else {
local_cpu_utilization = -1.0;
local_service_demand = -1.0;
}
if (remote_cpu_usage) {
if (remote_cpu_rate == 0.0) {
fprintf(where,
"DANGER DANGER DANGER DANGER DANGER DANGER DANGER!\n");
fprintf(where,
"Remote CPU usage numbers based on process information only!\n");
fflush(where);
}
remote_cpu_utilization = dlpi_co_stream_result->cpu_util;
remote_service_demand = calc_service_demand(bytes_sent,
0.0,
remote_cpu_utilization,
dlpi_co_stream_result->num_cpus);
}
else {
remote_cpu_utilization = -1.0;
remote_service_demand = -1.0;
}
/* We are now ready to print all the information. If the user */
/* has specified zero-level verbosity, we will just print the */
/* local service demand, or the remote service demand. If the */
/* user has requested verbosity level 1, he will get the basic */
/* "streamperf" numbers. If the user has specified a verbosity */
/* of greater than 1, we will display a veritable plethora of */
/* background information from outside of this block as it it */
/* not cpu_measurement specific... */
switch (verbosity) {
case 0:
if (local_cpu_usage) {
fprintf(where,
cpu_fmt_0,
local_service_demand);
}
else {
fprintf(where,
cpu_fmt_0,
remote_service_demand);
}
break;
case 1:
case 2:
fprintf(where,
cpu_fmt_1, /* the format string */
rrw_size, /* remote recvbuf size */
lsw_size, /* local sendbuf size */
send_size, /* how large were the sends */
elapsed_time, /* how long was the test */
thruput, /* what was the xfer rate */
local_cpu_utilization, /* local cpu */
remote_cpu_utilization, /* remote cpu */
local_service_demand, /* local service demand */
remote_service_demand); /* remote service demand */
break;
}
}
else {
/* The tester did not wish to measure service demand. */
switch (verbosity) {
case 0:
fprintf(where,
tput_fmt_0,
thruput);
break;
case 1:
case 2:
fprintf(where,
tput_fmt_1, /* the format string */
rrw_size, /* remote recvbuf size */
lsw_size, /* local sendbuf size */
send_size, /* how large were the sends */
elapsed_time, /* how long did it take */
thruput);/* how fast did it go */
break;
}
}
/* it would be a good thing to include information about some of the */
/* other parameters that may have been set for this test, but at the */
/* moment, I do not wish to figure-out all the formatting, so I will */
/* just put this comment here to help remind me that it is something */
/* that should be done at a later time. */
if (verbosity > 1) {
/* The user wanted to know it all, so we will give it to him. */
/* This information will include as much as we can find about */
/* TCP statistics, the alignments of the sends and receives */
/* and all that sort of rot... */
fprintf(where,
ksink_fmt,
"Bytes",
"Bytes",
"Bytes",
local_send_align,
remote_recv_align,
local_send_offset,
remote_recv_offset,
bytes_sent,
bytes_sent / (double)nummessages,
nummessages,
bytes_sent / (double)dlpi_co_stream_result->recv_calls,
dlpi_co_stream_result->recv_calls);
}
}
/* This is the server-side routine for the tcp stream test. It is */
/* implemented as one routine. I could break things-out somewhat, but */
/* didn't feel it was necessary. */
int
recv_dlpi_co_stream()
{
int data_descriptor;
int flags = 0;
int measure_cpu;
int bytes_received;
int receive_calls;
float elapsed_time;
struct ring_elt *recv_ring;
char *message_ptr;
char *message;
int *message_int_ptr;
struct strbuf recv_message;
int dirty_count;
int clean_count;
int i;
struct dlpi_co_stream_request_struct *dlpi_co_stream_request;
struct dlpi_co_stream_response_struct *dlpi_co_stream_response;
struct dlpi_co_stream_results_struct *dlpi_co_stream_results;
dlpi_co_stream_request = (struct dlpi_co_stream_request_struct *)netperf_request.content.test_specific_data;
dlpi_co_stream_response = (struct dlpi_co_stream_response_struct *)netperf_response.content.test_specific_data;
dlpi_co_stream_results = (struct dlpi_co_stream_results_struct *)netperf_response.content.test_specific_data;
if (debug) {
fprintf(where,"netserver: recv_dlpi_co_stream: entered...\n");
fflush(where);
}
/* We want to set-up the listen socket with all the desired */
/* parameters and then let the initiator know that all is ready. If */
/* socket size defaults are to be used, then the initiator will have */
/* sent us 0's. If the socket sizes cannot be changed, then we will */
/* send-back what they are. If that information cannot be determined, */
/* then we send-back -1's for the sizes. If things go wrong for any */
/* reason, we will drop back ten yards and punt. */
/* If anything goes wrong, we want the remote to know about it. It */
/* would be best if the error that the remote reports to the user is */
/* the actual error we encountered, rather than some bogus unexpected */
/* response type message. */
netperf_response.content.response_type = DLPI_CO_STREAM_RESPONSE;
/* We now alter the message_ptr variable to be at the desired */
/* alignment with the desired offset. */
if (debug > 1) {
fprintf(where,"recv_dlpi_co_stream: requested alignment of %d\n",
dlpi_co_stream_request->recv_alignment);
fflush(where);
}
/* Grab a descriptor to listen on, and then listen on it. */
if (debug > 1) {
fprintf(where,"recv_dlpi_co_stream: grabbing a descriptor...\n");
fflush(where);
}
#ifdef __alpha
/* ok - even on a DEC box, strings are strings. I din't really want */
/* to ntohl the words of a string. since I don't want to teach the */
/* send_ and recv_ _request and _response routines about the types, */
/* I will put "anti-ntohl" calls here. I imagine that the "pure" */
/* solution would be to use XDR, but I am still leary of being able */
/* to find XDR libs on all platforms I want running netperf. raj */
{
int *charword;
int *initword;
int *lastword;
initword = (int *) dlpi_co_stream_request->dlpi_device;
lastword = initword + ((dlpi_co_stream_request->dev_name_len + 3) / 4);
for (charword = initword;
charword < lastword;
charword++) {
*charword = htonl(*charword);
}
}
#endif /* __alpha */
data_descriptor = dl_open(dlpi_co_stream_request->dlpi_device,
dlpi_co_stream_request->ppa);
if (data_descriptor < 0) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
/* Let's get an address assigned to this descriptor so we can tell the */
/* initiator how to reach the data descriptor. There may be a desire to */
/* nail this descriptor to a specific address in a multi-homed, */
/* multi-connection situation, but for now, we'll ignore the issue */
/* and concentrate on single connection testing. */
/* bind the sap and retrieve the dlsap assigned by the system */
dlpi_co_stream_response->station_addr_len = 14; /* arbitrary */
if (dl_bind(data_descriptor,
dlpi_co_stream_request->sap,
DL_CODLS,
(char *)dlpi_co_stream_response->station_addr,
&dlpi_co_stream_response->station_addr_len) != 0) {
fprintf(where,"recv_dlpi_co_stream: bind failure\n");
fflush(where);
exit(1);
}
/* The initiator may have wished-us to modify the socket buffer */
/* sizes. We should give it a shot. If he didn't ask us to change the */
/* sizes, we should let him know what sizes were in use at this end. */
/* If none of this code is compiled-in, then we will tell the */
/* initiator that we were unable to play with the socket buffer by */
/* setting the size in the response to -1. */
#ifdef DL_HP_SET_LOCAL_WIN_REQ
if (dlpi_co_stream_request->recv_win_size) {
}
/* Now, we will find-out what the size actually became, and report */
/* that back to the user. If the call fails, we will just report a -1 */
/* back to the initiator for the recv buffer size. */
#else /* the system won't let us play with the buffers */
dlpi_co_stream_response->recv_win_size = -1;
#endif /* DL_HP_SET_LOCAL_WIN_REQ */
/* what sort of sizes did we end-up with? */
/* this bit of code whould default to the Interface MTU */
if (dlpi_co_stream_request->receive_size == 0) {
recv_size = 1024;
}
else {
recv_size = dlpi_co_stream_request->receive_size;
}
/* tell the other fellow what our receive size became */
dlpi_co_stream_response->receive_size = recv_size;
/* just a little prep work for when we may have to behave like the */
/* sending side... */
message = (char *)malloc(recv_size * 2);
if (message == NULL) {
printf("malloc(%d) failed!\n", recv_size * 2);
exit(1);
}
message_ptr = ALIGN_BUFFER(message, dlpi_co_stream_request->recv_alignment, dlpi_co_stream_request->recv_offset);
recv_message.maxlen = recv_size;
recv_message.len = 0;
recv_message.buf = message_ptr;
if (debug > 1) {
fprintf(where,
"recv_dlpi_co_stream: receive alignment and offset set...\n");
fflush(where);
}
netperf_response.content.serv_errno = 0;
/* But wait, there's more. If the initiator wanted cpu measurements, */
/* then we must call the calibrate routine, which will return the max */
/* rate back to the initiator. If the CPU was not to be measured, or */
/* something went wrong with the calibration, we will return a -1 to */
/* the initiator. */
dlpi_co_stream_response->cpu_rate = 0.0; /* assume no cpu */
if (dlpi_co_stream_request->measure_cpu) {
dlpi_co_stream_response->measure_cpu = 1;
dlpi_co_stream_response->cpu_rate =
calibrate_local_cpu(dlpi_co_stream_request->cpu_rate);
}
send_response();
/* accept a connection on this file descriptor. at some point, */
/* dl_accept will "do the right thing" with the last two parms, but */
/* for now it ignores them, so we will pass zeros. */
if(dl_accept(data_descriptor, 0, 0) != 0) {
fprintf(where,
"recv_dlpi_co_stream: error in accept, errno %d\n",
errno);
fflush(where);
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
if (debug) {
fprintf(where,"netserver:recv_dlpi_co_stream: connection accepted\n");
fflush(where);
}
/* Now it's time to start receiving data on the connection. We will */
/* first grab the apropriate counters and then start grabbing. */
cpu_start(dlpi_co_stream_request->measure_cpu);
#ifdef DIRTY
/* we want to dirty some number of consecutive integers in the buffer */
/* we are about to recv. we may also want to bring some number of */
/* them cleanly into the cache. The clean ones will follow any dirty */
/* ones into the cache. */
dirty_count = dlpi_co_stream_request->dirty_count;
clean_count = dlpi_co_stream_request->clean_count;
message_int_ptr = (int *)message_ptr;
for (i = 0; i < dirty_count; i++) {
*message_int_ptr = rand();
message_int_ptr++;
}
for (i = 0; i < clean_count; i++) {
dirty_count = *message_int_ptr;
message_int_ptr++;
}
#endif /* DIRTY */
recv_message.len = recv_size;
while (recv_message.len == recv_size) {
if (getmsg(data_descriptor,
0,
&recv_message,
&flags) != 0) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
bytes_received += recv_message.len;
receive_calls++;
if (debug) {
fprintf(where,
"netserver:recv_dlpi_co_stream: getmsg accepted %d bytes\n",
recv_message.len);
fflush(where);
}
#ifdef DIRTY
message_int_ptr = (int *)message_ptr;
for (i = 0; i < dirty_count; i++) {
*message_int_ptr = rand();
message_int_ptr++;
}
for (i = 0; i < clean_count; i++) {
dirty_count = *message_int_ptr;
message_int_ptr++;
}
#endif /* DIRTY */
}
/* The loop now exits due to zero bytes received. */
/* should perform a disconnect to signal the sender that */
/* we have received all the data sent. */
if (close(data_descriptor) == -1) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
cpu_stop(dlpi_co_stream_request->measure_cpu,&elapsed_time);
/* send the results to the sender */
if (debug) {
fprintf(where,
"recv_dlpi_co_stream: got %d bytes\n",
bytes_received);
fprintf(where,
"recv_dlpi_co_stream: got %d recvs\n",
receive_calls);
fflush(where);
}
dlpi_co_stream_results->bytes_received = bytes_received;
dlpi_co_stream_results->elapsed_time = elapsed_time;
dlpi_co_stream_results->recv_calls = receive_calls;
if (dlpi_co_stream_request->measure_cpu) {
dlpi_co_stream_results->cpu_util = calc_cpu_util(0.0);
};
if (debug > 1) {
fprintf(where,
"recv_dlpi_co_stream: test complete, sending results.\n");
fflush(where);
}
send_response();
}
/*********************************/
int send_dlpi_co_rr(char remote_host[])
{
char *tput_title = "\
Local /Remote\n\
Window Size Request Resp. Elapsed Trans.\n\
Send Recv Size Size Time Rate \n\
frames frames bytes bytes secs. per sec \n\n";
char *tput_fmt_0 =
"%7.2f\n";
char *tput_fmt_1_line_1 = "\
%-6d %-6d %-6d %-6d %-6.2f %7.2f \n";
char *tput_fmt_1_line_2 = "\
%-6d %-6d\n";
char *cpu_title = "\
Local /Remote\n\
Window Size Request Resp. Elapsed Trans. CPU CPU S.dem S.dem\n\
Send Recv Size Size Time Rate local remote local remote\n\
frames frames bytes bytes secs. per sec %% %% us/Tr us/Tr\n\n";
char *cpu_fmt_0 =
"%6.3f\n";
char *cpu_fmt_1_line_1 = "\
%-6d %-6d %-6d %-6d %-6.2f %-6.2f %-6.2f %-6.2f %-6.3f %-6.3f\n";
char *cpu_fmt_1_line_2 = "\
%-6d %-6d\n";
char *ksink_fmt = "\
Alignment Offset\n\
Local Remote Local Remote\n\
Send Recv Send Recv\n\
%5d %5d %5d %5d\n";
int timed_out = 0;
float elapsed_time;
int dlsap_len;
char dlsap[BUFSIZ];
int flags = 0;
char *send_message_ptr;
char *recv_message_ptr;
char *temp_message_ptr;
struct strbuf send_message;
struct strbuf recv_message;
int nummessages;
int send_descriptor;
int trans_remaining;
double bytes_xferd;
int rsp_bytes_left;
/* we assume that station adresses fit within two ints */
unsigned int remote_address[1];
float local_cpu_utilization;
float local_service_demand;
float remote_cpu_utilization;
float remote_service_demand;
double thruput;
struct dlpi_co_rr_request_struct *dlpi_co_rr_request;
struct dlpi_co_rr_response_struct *dlpi_co_rr_response;
struct dlpi_co_rr_results_struct *dlpi_co_rr_result;
dlpi_co_rr_request =
(struct dlpi_co_rr_request_struct *)netperf_request.content.test_specific_data;
dlpi_co_rr_response =
(struct dlpi_co_rr_response_struct *)netperf_response.content.test_specific_data;
dlpi_co_rr_result =
(struct dlpi_co_rr_results_struct *)netperf_response.content.test_specific_data;
/* since we are now disconnected from the code that established the */
/* control socket, and since we want to be able to use different */
/* protocols and such, we are passed the name of the remote host and */
/* must turn that into the test specific addressing information. */
if ( print_headers ) {
fprintf(where,"DLPI CO REQUEST/RESPONSE TEST\n");
if (local_cpu_usage || remote_cpu_usage)
fprintf(where,cpu_title,format_units());
else
fprintf(where,tput_title,format_units());
}
/* initialize a few counters */
nummessages = 0;
bytes_xferd = 0.0;
times_up = 0;
/* set-up the data buffers with the requested alignment and offset */
temp_message_ptr = (char *)malloc(req_size+MAXALIGNMENT+MAXOFFSET);
if (temp_message_ptr == NULL) {
printf("malloc(%d) failed!\n", req_size+MAXALIGNMENT+MAXOFFSET);
exit(1);
}
send_message_ptr = (char *)(( (long) temp_message_ptr +
(long) local_send_align - 1) &
~((long) local_send_align - 1));
send_message_ptr = send_message_ptr + local_send_offset;
send_message.maxlen = req_size+MAXALIGNMENT+MAXOFFSET;
send_message.len = req_size;
send_message.buf = send_message_ptr;
temp_message_ptr = (char *)malloc(rsp_size+MAXALIGNMENT+MAXOFFSET);
if (temp_message_ptr == NULL) {
printf("malloc(%d) failed!\n", rsp_size+MAXALIGNMENT+MAXOFFSET);
exit(1);
}
recv_message_ptr = (char *)(( (long) temp_message_ptr +
(long) local_recv_align - 1) &
~((long) local_recv_align - 1));
recv_message_ptr = recv_message_ptr + local_recv_offset;
recv_message.maxlen = rsp_size+MAXALIGNMENT+MAXOFFSET;
recv_message.len = 0;
recv_message.buf = send_message_ptr;
/*set up the data socket */
send_descriptor = dl_open(loc_dlpi_device,loc_ppa);
if (send_descriptor < 0){
perror("netperf: send_dlpi_co_rr: tcp stream data descriptor");
exit(1);
}
if (debug) {
fprintf(where,"send_dlpi_co_rr: send_descriptor obtained...\n");
}
/* bind the puppy and get the assigned dlsap */
dlsap_len = BUFSIZ;
if (dl_bind(send_descriptor,
dlpi_sap, DL_CODLS, dlsap, &dlsap_len) != 0) {
fprintf(where,"send_dlpi_co_rr: bind failure\n");
fflush(where);
exit(1);
}
/* Modify the local socket size. The reason we alter the send buffer */
/* size here rather than when the connection is made is to take care */
/* of decreases in buffer size. Decreasing the window size after */
/* connection establishment is a TCP no-no. Also, by setting the */
/* buffer (window) size before the connection is established, we can */
/* control the TCP MSS (segment size). The MSS is never more that 1/2 */
/* the minimum receive buffer size at each half of the connection. */
/* This is why we are altering the receive buffer size on the sending */
/* size of a unidirectional transfer. If the user has not requested */
/* that the socket buffers be altered, we will try to find-out what */
/* their values are. If we cannot touch the socket buffer in any way, */
/* we will set the values to -1 to indicate that. */
#ifdef DL_HP_SET_LOCAL_WIN_REQ
if (lsw_size > 0) {
if (debug > 1) {
fprintf(where,"netperf: send_dlpi_co_rr: socket send size altered from system default...\n");
fprintf(where," send: %d\n",lsw_size);
}
}
if (lrw_size > 0) {
if (debug > 1) {
fprintf(where,"netperf: send_dlpi_co_rr: socket recv size altered from system default...\n");
fprintf(where," recv: %d\n",lrw_size);
}
}
/* Now, we will find-out what the size actually became, and report */
/* that back to the user. If the call fails, we will just report a -1 */
/* back to the initiator for the recv buffer size. */
if (debug) {
fprintf(where,"netperf: send_dlpi_co_rr: socket sizes determined...\n");
fprintf(where," send: %d recv: %d\n",lsw_size,lrw_size);
}
#else /* DL_HP_SET_LOCAL_WIN_REQ */
lsw_size = -1;
lrw_size = -1;
#endif /* DL_HP_SET_LOCAL_WIN_REQ */
/* If the user has requested cpu utilization measurements, we must */
/* calibrate the cpu(s). We will perform this task within the tests */
/* themselves. If the user has specified the cpu rate, then */
/* calibrate_local_cpu will return rather quickly as it will have */
/* nothing to do. If local_cpu_rate is zero, then we will go through */
/* all the "normal" calibration stuff and return the rate back.*/
if (local_cpu_usage) {
local_cpu_rate = calibrate_local_cpu(local_cpu_rate);
}
/* Tell the remote end to do a listen. The server alters the socket */
/* paramters on the other side at this point, hence the reason for */
/* all the values being passed in the setup message. If the user did */
/* not specify any of the parameters, they will be passed as 0, which */
/* will indicate to the remote that no changes beyond the system's */
/* default should be used. Alignment is the exception, it will */
/* default to 8, which will be no alignment alterations. */
netperf_request.content.request_type = DO_DLPI_CO_RR;
dlpi_co_rr_request->recv_win_size = rrw_size;
dlpi_co_rr_request->send_win_size = rsw_size;
dlpi_co_rr_request->recv_alignment = remote_recv_align;
dlpi_co_rr_request->recv_offset = remote_recv_offset;
dlpi_co_rr_request->send_alignment = remote_send_align;
dlpi_co_rr_request->send_offset = remote_send_offset;
dlpi_co_rr_request->request_size = req_size;
dlpi_co_rr_request->response_size = rsp_size;
dlpi_co_rr_request->measure_cpu = remote_cpu_usage;
dlpi_co_rr_request->cpu_rate = remote_cpu_rate;
dlpi_co_rr_request->ppa = rem_ppa;
dlpi_co_rr_request->sap = dlpi_sap;
dlpi_co_rr_request->dev_name_len = strlen(rem_dlpi_device);
strcpy(dlpi_co_rr_request->dlpi_device,
rem_dlpi_device);
#ifdef __alpha
/* ok - even on a DEC box, strings are strings. I din't really want */
/* to ntohl the words of a string. since I don't want to teach the */
/* send_ and recv_ _request and _response routines about the types, */
/* I will put "anti-ntohl" calls here. I imagine that the "pure" */
/* solution would be to use XDR, but I am still leary of being able */
/* to find XDR libs on all platforms I want running netperf. raj */
{
int *charword;
int *initword;
int *lastword;
initword = (int *) dlpi_co_rr_request->dlpi_device;
lastword = initword + ((strlen(rem_dlpi_device) + 3) / 4);
for (charword = initword;
charword < lastword;
charword++) {
*charword = ntohl(*charword);
}
}
#endif /* __alpha */
if (test_time) {
dlpi_co_rr_request->test_length = test_time;
}
else {
dlpi_co_rr_request->test_length = test_trans * -1;
}
if (debug > 1) {
fprintf(where,"netperf: send_dlpi_co_rr: requesting TCP stream test\n");
}
send_request();
/* The response from the remote will contain all of the relevant */
/* socket parameters for this test type. We will put them back into */
/* the variables here so they can be displayed if desired. The */
/* remote will have calibrated CPU if necessary, and will have done */
/* all the needed set-up we will have calibrated the cpu locally */
/* before sending the request, and will grab the counter value right */
/* after the connect returns. The remote will grab the counter right */
/* after the accept call. This saves the hassle of extra messages */
/* being sent for the TCP tests. */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"remote listen done.\n");
rrw_size = dlpi_co_rr_response->recv_win_size;
rsw_size = dlpi_co_rr_response->send_win_size;
remote_cpu_usage= dlpi_co_rr_response->measure_cpu;
remote_cpu_rate = dlpi_co_rr_response->cpu_rate;
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("netperf: remote error");
exit(1);
}
/*Connect up to the remote port on the data descriptor */
if(dl_connect(send_descriptor,
dlpi_co_rr_response->station_addr,
dlpi_co_rr_response->station_addr_len) != 0) {
fprintf(where,"send_dlpi_co_rr: connect failure\n");
fflush(where);
exit(1);
}
/* Data Socket set-up is finished. If there were problems, either the */
/* connect would have failed, or the previous response would have */
/* indicated a problem. I failed to see the value of the extra */
/* message after the accept on the remote. If it failed, we'll see it */
/* here. If it didn't, we might as well start pumping data. */
/* Set-up the test end conditions. For a request/response test, they */
/* can be either time or transaction based. */
if (test_time) {
/* The user wanted to end the test after a period of time. */
times_up = 0;
trans_remaining = 0;
start_timer(test_time);
}
else {
/* The tester wanted to send a number of bytes. */
trans_remaining = test_bytes;
times_up = 1;
}
/* The cpu_start routine will grab the current time and possibly */
/* value of the idle counter for later use in measuring cpu */
/* utilization and/or service demand and thruput. */
cpu_start(local_cpu_usage);
/* We use an "OR" to control test execution. When the test is */
/* controlled by time, the byte count check will always return false. */
/* When the test is controlled by byte count, the time test will */
/* always return false. When the test is finished, the whole */
/* expression will go false and we will stop sending data. I think I */
/* just arbitrarily decrement trans_remaining for the timed test, but */
/* will not do that just yet... One other question is whether or not */
/* the send buffer and the receive buffer should be the same buffer. */
while ((!times_up) || (trans_remaining > 0)) {
/* send the request */
if((putmsg(send_descriptor,
0,
&send_message,
0)) != 0) {
if (errno == EINTR) {
/* we hit the end of a */
/* timed test. */
timed_out = 1;
break;
}
perror("send_dlpi_co_rr: putmsg error");
exit(1);
}
if (debug) {
fprintf(where,"recv_message.len %d\n",recv_message.len);
fprintf(where,"send_message.len %d\n",send_message.len);
fflush(where);
}
/* receive the response */
/* this needs some work with streams buffers if we are going to */
/* support requests and responses larger than the MTU of the */
/* network, but this can wait until later */
rsp_bytes_left = rsp_size;
recv_message.len = rsp_size;
while(rsp_bytes_left > 0) {
if((getmsg(send_descriptor,
0,
&recv_message,
&flags)) < 0) {
if (errno == EINTR) {
/* We hit the end of a timed test. */
timed_out = 1;
break;
}
perror("send_dlpi_co_rr: data recv error");
exit(1);
}
rsp_bytes_left -= recv_message.len;
}
if (timed_out) {
/* we may have been in a nested while loop - we need */
/* another call to break. */
break;
}
nummessages++;
if (trans_remaining) {
trans_remaining--;
}
if (debug > 3) {
fprintf(where,
"Transaction %d completed\n",
nummessages);
fflush(where);
}
}
/* At this point we used to call shutdown onthe data socket to be */
/* sure all the data was delivered, but this was not germane in a */
/* request/response test, and it was causing the tests to "hang" when */
/* they were being controlled by time. So, I have replaced this */
/* shutdown call with a call to close that can be found later in the */
/* procedure. */
/* this call will always give us the elapsed time for the test, and */
/* will also store-away the necessaries for cpu utilization */
cpu_stop(local_cpu_usage,&elapsed_time); /* was cpu being measured? */
/* how long did we really run? */
/* Get the statistics from the remote end. The remote will have */
/* calculated service demand and all those interesting things. If it */
/* wasn't supposed to care, it will return obvious values. */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"remote results obtained\n");
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("netperf: remote error");
exit(1);
}
/* We now calculate what our thruput was for the test. In the future, */
/* we may want to include a calculation of the thruput measured by */
/* the remote, but it should be the case that for a TCP stream test, */
/* that the two numbers should be *very* close... We calculate */
/* bytes_sent regardless of the way the test length was controlled. */
/* If it was time, we needed to, and if it was by bytes, the user may */
/* have specified a number of bytes that wasn't a multiple of the */
/* send_size, so we really didn't send what he asked for ;-) We use */
/* Kbytes/s as the units of thruput for a TCP stream test, where K = */
/* 1024. A future enhancement *might* be to choose from a couple of */
/* unit selections. */
bytes_xferd = (req_size * nummessages) + (rsp_size * nummessages);
thruput = calc_thruput(bytes_xferd);
if (local_cpu_usage || remote_cpu_usage) {
/* We must now do a little math for service demand and cpu */
/* utilization for the system(s) */
/* Of course, some of the information might be bogus because */
/* there was no idle counter in the kernel(s). We need to make */
/* a note of this for the user's benefit...*/
if (local_cpu_usage) {
if (local_cpu_rate == 0.0) {
fprintf(where,"WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n");
fprintf(where,"Local CPU usage numbers based on process information only!\n");
fflush(where);
}
local_cpu_utilization = calc_cpu_util(0.0);
/* since calc_service demand is doing ms/Kunit we will */
/* multiply the number of transaction by 1024 to get */
/* "good" numbers */
local_service_demand = calc_service_demand((double) nummessages*1024,
0.0,
0.0,
0);
}
else {
local_cpu_utilization = -1.0;
local_service_demand = -1.0;
}
if (remote_cpu_usage) {
if (remote_cpu_rate == 0.0) {
fprintf(where,"DANGER DANGER DANGER DANGER DANGER DANGER DANGER!\n");
fprintf(where,"Remote CPU usage numbers based on process information only!\n");
fflush(where);
}
remote_cpu_utilization = dlpi_co_rr_result->cpu_util;
/* since calc_service demand is doing ms/Kunit we will */
/* multiply the number of transaction by 1024 to get */
/* "good" numbers */
remote_service_demand = calc_service_demand((double) nummessages*1024,
0.0,
remote_cpu_utilization,
dlpi_co_rr_result->num_cpus);
}
else {
remote_cpu_utilization = -1.0;
remote_service_demand = -1.0;
}
/* We are now ready to print all the information. If the user */
/* has specified zero-level verbosity, we will just print the */
/* local service demand, or the remote service demand. If the */
/* user has requested verbosity level 1, he will get the basic */
/* "streamperf" numbers. If the user has specified a verbosity */
/* of greater than 1, we will display a veritable plethora of */
/* background information from outside of this block as it it */
/* not cpu_measurement specific... */
switch (verbosity) {
case 0:
if (local_cpu_usage) {
fprintf(where,
cpu_fmt_0,
local_service_demand);
}
else {
fprintf(where,
cpu_fmt_0,
remote_service_demand);
}
break;
case 1:
fprintf(where,
cpu_fmt_1_line_1, /* the format string */
lsw_size, /* local sendbuf size */
lrw_size,
req_size, /* how large were the requests */
rsp_size, /* guess */
elapsed_time, /* how long was the test */
nummessages/elapsed_time,
local_cpu_utilization, /* local cpu */
remote_cpu_utilization, /* remote cpu */
local_service_demand, /* local service demand */
remote_service_demand); /* remote service demand */
fprintf(where,
cpu_fmt_1_line_2,
rsw_size,
rrw_size);
break;
}
}
else {
/* The tester did not wish to measure service demand. */
switch (verbosity) {
case 0:
fprintf(where,
tput_fmt_0,
nummessages/elapsed_time);
break;
case 1:
fprintf(where,
tput_fmt_1_line_1, /* the format string */
lsw_size,
lrw_size,
req_size, /* how large were the requests */
rsp_size, /* how large were the responses */
elapsed_time, /* how long did it take */
nummessages/elapsed_time);
fprintf(where,
tput_fmt_1_line_2,
rsw_size, /* remote recvbuf size */
rrw_size);
break;
}
}
/* it would be a good thing to include information about some of the */
/* other parameters that may have been set for this test, but at the */
/* moment, I do not wish to figure-out all the formatting, so I will */
/* just put this comment here to help remind me that it is something */
/* that should be done at a later time. */
if (verbosity > 1) {
/* The user wanted to know it all, so we will give it to him. */
/* This information will include as much as we can find about */
/* TCP statistics, the alignments of the sends and receives */
/* and all that sort of rot... */
fprintf(where,
ksink_fmt);
}
/* The test is over. Kill the data descriptor */
if (close(send_descriptor) == -1) {
perror("send_dlpi_co_rr: cannot shutdown tcp stream descriptor");
}
}
void
send_dlpi_cl_stream(char remote_host[])
{
/************************************************************************/
/* */
/* UDP Unidirectional Send Test */
/* */
/************************************************************************/
char *tput_title =
"Window Message Elapsed Messages \n\
Size Size Time Okay Errors Throughput\n\
frames bytes secs # # %s/sec\n\n";
char *tput_fmt_0 =
"%7.2f\n";
char *tput_fmt_1 =
"%5d %5d %-7.2f %7d %6d %7.2f\n\
%5d %-7.2f %7d %7.2f\n\n";
char *cpu_title =
"Window Message Elapsed Messages CPU Service\n\
Size Size Time Okay Errors Throughput Util Demand\n\
frames bytes secs # # %s/sec %% us/KB\n\n";
char *cpu_fmt_0 =
"%6.2f\n";
char *cpu_fmt_1 =
"%5d %5d %-7.2f %7d %6d %7.1f %-6.2f %-6.3f\n\
%5d %-7.2f %7d %7.1f %-6.2f %-6.3f\n\n";
int messages_recvd;
float elapsed_time,
local_cpu_utilization,
remote_cpu_utilization;
float local_service_demand, remote_service_demand;
double local_thruput, remote_thruput;
double bytes_sent;
double bytes_recvd;
int *message_int_ptr;
char *message_ptr;
char *message;
char sctl_data[BUFSIZ];
struct strbuf send_message;
struct strbuf sctl_message;
dl_unitdata_req_t *data_req = (dl_unitdata_req_t *)sctl_data;
char dlsap[BUFSIZ];
int dlsap_len;
int message_offset;
int message_max_offset;
int failed_sends;
int failed_cows;
int messages_sent;
int data_descriptor;
#ifdef WANT_INTERVALS
int interval_count;
#endif /* WANT_INTERVALS */
#ifdef DIRTY
int i;
#endif /* DIRTY */
struct dlpi_cl_stream_request_struct *dlpi_cl_stream_request;
struct dlpi_cl_stream_response_struct *dlpi_cl_stream_response;
struct dlpi_cl_stream_results_struct *dlpi_cl_stream_results;
dlpi_cl_stream_request = (struct dlpi_cl_stream_request_struct *)netperf_request.content.test_specific_data;
dlpi_cl_stream_response = (struct dlpi_cl_stream_response_struct *)netperf_response.content.test_specific_data;
dlpi_cl_stream_results = (struct dlpi_cl_stream_results_struct *)netperf_response.content.test_specific_data;
if ( print_headers ) {
printf("DLPI CL UNIDIRECTIONAL SEND TEST\n");
if (local_cpu_usage || remote_cpu_usage)
printf(cpu_title,format_units());
else
printf(tput_title,format_units());
}
failed_sends = 0;
messages_sent = 0;
times_up = 0;
/*set up the data descriptor */
data_descriptor = dl_open(loc_dlpi_device,loc_ppa);
if (data_descriptor < 0){
perror("send_dlpi_cl_stream: data descriptor");
exit(1);
}
/* bind the puppy and get the assigned dlsap */
dlsap_len = BUFSIZ;
if (dl_bind(data_descriptor,
dlpi_sap, DL_CLDLS, dlsap, &dlsap_len) != 0) {
fprintf(where,"send_dlpi_cl_stream: bind failure\n");
fflush(where);
exit(1);
}
/* Modify the local socket size (SNDBUF size) */
#ifdef DL_HP_SET_LOCAL_WIN_REQ
if (lsw_size > 0) {
if (debug > 1) {
fprintf(where,"netperf: send_dlpi_cl_stream: descriptor send size altered from system default...\n");
fprintf(where," send: %d\n",lsw_size);
}
}
if (lrw_size > 0) {
if (debug > 1) {
fprintf(where,"netperf: send_dlpi_cl_stream: descriptor recv size altered from system default...\n");
fprintf(where," recv: %d\n",lrw_size);
}
}
/* Now, we will find-out what the size actually became, and report */
/* that back to the user. If the call fails, we will just report a -1 */
/* back to the initiator for the recv buffer size. */
#else /* DL_HP_SET_LOCAL_WIN_REQ */
lsw_size = -1;
lrw_size = -1;
#endif /* DL_HP_SET_LOCAL_WIN_REQ */
/* now, we want to see if we need to set the send_size */
if (send_size == 0) {
send_size = 1024;
}
/* set-up the data buffer with the requested alignment and offset, */
/* most of the numbers here are just a hack to pick something nice */
/* and big in an attempt to never try to send a buffer a second time */
/* before it leaves the node...unless the user set the width */
/* explicitly. */
if (send_width == 0) send_width = 32;
message = (char *)malloc(send_size * (send_width + 1) + local_send_align + local_send_offset);
if (message == NULL) {
printf("malloc(%d) failed!\n", send_size * (send_width + 1) + local_send_align + local_send_offset);
exit(1);
}
message_ptr = (char *)(( (long) message +
(long) local_send_align - 1) &
~((long) local_send_align - 1));
message_ptr = message_ptr + local_send_offset;
message = message_ptr;
send_message.maxlen = send_size;
send_message.len = send_size;
send_message.buf = message;
sctl_message.maxlen = BUFSIZ;
sctl_message.len = 0;
sctl_message.buf = sctl_data;
/* if the user supplied a cpu rate, this call will complete rather */
/* quickly, otherwise, the cpu rate will be retured to us for */
/* possible display. The Library will keep it's own copy of this data */
/* for use elsewhere. We will only display it. (Does that make it */
/* "opaque" to us?) */
if (local_cpu_usage)
local_cpu_rate = calibrate_local_cpu(local_cpu_rate);
/* Tell the remote end to set up the data connection. The server */
/* sends back the port number and alters the socket parameters there. */
/* Of course this is a datagram service so no connection is actually */
/* set up, the server just sets up the socket and binds it. */
netperf_request.content.request_type = DO_DLPI_CL_STREAM;
dlpi_cl_stream_request->recv_win_size = rrw_size;
dlpi_cl_stream_request->message_size = send_size;
dlpi_cl_stream_request->recv_alignment = remote_recv_align;
dlpi_cl_stream_request->recv_offset = remote_recv_offset;
dlpi_cl_stream_request->measure_cpu = remote_cpu_usage;
dlpi_cl_stream_request->cpu_rate = remote_cpu_rate;
dlpi_cl_stream_request->ppa = rem_ppa;
dlpi_cl_stream_request->sap = dlpi_sap;
dlpi_cl_stream_request->dev_name_len = strlen(rem_dlpi_device);
strcpy(dlpi_cl_stream_request->dlpi_device,
rem_dlpi_device);
#ifdef __alpha
/* ok - even on a DEC box, strings are strings. I din't really want */
/* to ntohl the words of a string. since I don't want to teach the */
/* send_ and recv_ _request and _response routines about the types, */
/* I will put "anti-ntohl" calls here. I imagine that the "pure" */
/* solution would be to use XDR, but I am still leary of being able */
/* to find XDR libs on all platforms I want running netperf. raj */
{
int *charword;
int *initword;
int *lastword;
initword = (int *) dlpi_cl_stream_request->dlpi_device;
lastword = initword + ((strlen(rem_dlpi_device) + 3) / 4);
for (charword = initword;
charword < lastword;
charword++) {
*charword = ntohl(*charword);
}
}
#endif /* __alpha */
if (test_time) {
dlpi_cl_stream_request->test_length = test_time;
}
else {
dlpi_cl_stream_request->test_length = test_bytes * -1;
}
send_request();
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"send_dlpi_cl_stream: remote data connection done.\n");
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("send_dlpi_cl_stream: error on remote");
exit(1);
}
/* place some of the remote's addressing information into the send */
/* structure so our sends can be sent to the correct place. Also get */
/* some of the returned socket buffer information for user display. */
/* set-up the destination addressing control info */
data_req->dl_primitive = DL_UNITDATA_REQ;
bcopy((char *)(dlpi_cl_stream_response->station_addr),
((char *)data_req + sizeof(dl_unitdata_req_t)),
dlpi_cl_stream_response->station_addr_len);
data_req->dl_dest_addr_offset = sizeof(dl_unitdata_req_t);
data_req->dl_dest_addr_length = dlpi_cl_stream_response->station_addr_len;
/* there is a dl_priority structure too, but I am ignoring it for */
/* the time being. */
/* however... it is best to put some value in there lest some code
get grumpy about it - fix from Nicolas Thomas */
data_req->dl_priority.dl_min = DL_QOS_DONT_CARE;
data_req->dl_priority.dl_max = DL_QOS_DONT_CARE;
sctl_message.len = sizeof(dl_unitdata_req_t) +
data_req->dl_dest_addr_length;
rrw_size = dlpi_cl_stream_response->recv_win_size;
rsw_size = dlpi_cl_stream_response->send_win_size;
remote_cpu_rate = dlpi_cl_stream_response->cpu_rate;
/* set up the timer to call us after test_time */
start_timer(test_time);
/* Get the start count for the idle counter and the start time */
cpu_start(local_cpu_usage);
#ifdef WANT_INTERVALS
interval_count = interval_burst;
#endif /* WANT_INTERVALS */
/* Send datagrams like there was no tomorrow */
while (!times_up) {
#ifdef DIRTY
/* we want to dirty some number of consecutive integers in the buffer */
/* we are about to send. we may also want to bring some number of */
/* them cleanly into the cache. The clean ones will follow any dirty */
/* ones into the cache. */
message_int_ptr = (int *)message_ptr;
for (i = 0; i < loc_dirty_count; i++) {
*message_int_ptr = 4;
message_int_ptr++;
}
for (i = 0; i < loc_clean_count; i++) {
loc_dirty_count = *message_int_ptr;
message_int_ptr++;
}
#endif /* DIRTY */
if (putmsg(data_descriptor,
&sctl_message,
&send_message,
0) != 0) {
if (errno == EINTR) {
break;
}
if (errno == ENOBUFS) {
/* we might not ever hit this with STREAMS, it would probably */
/* be better to do a getinfo request at the end of the test to */
/* get all sorts of gory statistics. in the meantime, we will */
/* keep this code in place. */
failed_sends++;
continue;
}
perror("send_dlpi_cl_stream: data send error");
if (debug) {
fprintf(where,"messages_sent %u\n",messages_sent);
fflush(where);
}
exit(1);
}
messages_sent++;
/* now we want to move our pointer to the next position in the */
/* data buffer...since there was a successful send */
#ifdef WANT_INTERVALS
/* in this case, the interval count is the count-down couter */
/* to decide to sleep for a little bit */
if ((interval_burst) && (--interval_count == 0)) {
/* call the sleep routine for some milliseconds, if our */
/* timer popped while we were in there, we want to */
/* break out of the loop. */
if (msec_sleep(interval_wate)) {
break;
}
interval_count = interval_burst;
}
#endif /* WANT_INTERVALS */
}
/* This is a timed test, so the remote will be returning to us after */
/* a time. We should not need to send any "strange" messages to tell */
/* the remote that the test is completed, unless we decide to add a */
/* number of messages to the test. */
/* the test is over, so get stats and stuff */
cpu_stop(local_cpu_usage,
&elapsed_time);
/* Get the statistics from the remote end */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"send_dlpi_cl_stream: remote results obtained\n");
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("send_dlpi_cl_stream: error on remote");
exit(1);
}
bytes_sent = send_size * messages_sent;
local_thruput = calc_thruput(bytes_sent);
messages_recvd = dlpi_cl_stream_results->messages_recvd;
bytes_recvd = send_size * messages_recvd;
/* we asume that the remote ran for as long as we did */
remote_thruput = calc_thruput(bytes_recvd);
/* print the results for this descriptor and message size */
if (local_cpu_usage || remote_cpu_usage) {
/* We must now do a little math for service demand and cpu */
/* utilization for the system(s) We pass zeros for the local */
/* cpu utilization and elapsed time to tell the routine to use */
/* the libraries own values for those. */
if (local_cpu_usage) {
if (local_cpu_rate == 0.0) {
fprintf(where,"WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n");
fprintf(where,"Local CPU usage numbers based on process information only!\n");
fflush(where);
}
local_cpu_utilization = calc_cpu_util(0.0);
local_service_demand = calc_service_demand(bytes_sent,
0.0,
0.0,
0);
}
else {
local_cpu_utilization = -1.0;
local_service_demand = -1.0;
}
/* The local calculations could use variables being kept by */
/* the local netlib routines. The remote calcuations need to */
/* have a few things passed to them. */
if (remote_cpu_usage) {
if (remote_cpu_rate == 0.0) {
fprintf(where,"DANGER DANGER DANGER DANGER DANGER DANGER DANGER!\n");
fprintf(where,"REMOTE CPU usage numbers based on process information only!\n");
fflush(where);
}
remote_cpu_utilization = dlpi_cl_stream_results->cpu_util;
remote_service_demand = calc_service_demand(bytes_recvd,
0.0,
remote_cpu_utilization,
dlpi_cl_stream_results->num_cpus);
}
else {
remote_cpu_utilization = -1.0;
remote_service_demand = -1.0;
}
/* We are now ready to print all the information. If the user */
/* has specified zero-level verbosity, we will just print the */
/* local service demand, or the remote service demand. If the */
/* user has requested verbosity level 1, he will get the basic */
/* "streamperf" numbers. If the user has specified a verbosity */
/* of greater than 1, we will display a veritable plethora of */
/* background information from outside of this block as it it */
/* not cpu_measurement specific... */
switch (verbosity) {
case 0:
if (local_cpu_usage) {
fprintf(where,
cpu_fmt_0,
local_service_demand);
}
else {
fprintf(where,
cpu_fmt_0,
remote_service_demand);
}
break;
case 1:
fprintf(where,
cpu_fmt_1, /* the format string */
lsw_size, /* local sendbuf size */
send_size, /* how large were the sends */
elapsed_time, /* how long was the test */
messages_sent,
failed_sends,
local_thruput, /* what was the xfer rate */
local_cpu_utilization, /* local cpu */
local_service_demand, /* local service demand */
rrw_size,
elapsed_time,
messages_recvd,
remote_thruput,
remote_cpu_utilization, /* remote cpu */
remote_service_demand); /* remote service demand */
break;
}
}
else {
/* The tester did not wish to measure service demand. */
switch (verbosity) {
case 0:
fprintf(where,
tput_fmt_0,
local_thruput);
break;
case 1:
fprintf(where,
tput_fmt_1, /* the format string */
lsw_size, /* local sendbuf size */
send_size, /* how large were the sends */
elapsed_time, /* how long did it take */
messages_sent,
failed_sends,
local_thruput,
rrw_size, /* remote recvbuf size */
elapsed_time,
messages_recvd,
remote_thruput
);
break;
}
}
}
int
recv_dlpi_cl_stream()
{
char *message;
int data_descriptor;
int len;
char *message_ptr;
char rctl_data[BUFSIZ];
struct strbuf recv_message;
struct strbuf rctl_message;
int flags = 0;
/* these are to make reading some of the DLPI control messages easier */
dl_unitdata_ind_t *data_ind = (dl_unitdata_ind_t *)rctl_data;
dl_uderror_ind_t *uder_ind = (dl_uderror_ind_t *)rctl_data;
int bytes_received = 0;
float elapsed_time;
int message_size;
int messages_recvd = 0;
int measure_cpu;
struct dlpi_cl_stream_request_struct *dlpi_cl_stream_request;
struct dlpi_cl_stream_response_struct *dlpi_cl_stream_response;
struct dlpi_cl_stream_results_struct *dlpi_cl_stream_results;
dlpi_cl_stream_request = (struct dlpi_cl_stream_request_struct *)netperf_request.content.test_specific_data;
dlpi_cl_stream_response = (struct dlpi_cl_stream_response_struct *)netperf_response.content.test_specific_data;
dlpi_cl_stream_results = (struct dlpi_cl_stream_results_struct *)netperf_response.content.test_specific_data;
if (debug) {
fprintf(where,"netserver: recv_dlpi_cl_stream: entered...\n");
fflush(where);
}
/* We want to set-up the listen descriptor with all the desired */
/* parameters and then let the initiator know that all is ready. If */
/* socket size defaults are to be used, then the initiator will have */
/* sent us 0's. If the socket sizes cannot be changed, then we will */
/* send-back what they are. If that information cannot be determined, */
/* then we send-back -1's for the sizes. If things go wrong for any */
/* reason, we will drop back ten yards and punt. */
/* If anything goes wrong, we want the remote to know about it. It */
/* would be best if the error that the remote reports to the user is */
/* the actual error we encountered, rather than some bogus unexpected */
/* response type message. */
if (debug > 1) {
fprintf(where,"recv_dlpi_cl_stream: setting the response type...\n");
fflush(where);
}
netperf_response.content.response_type = DLPI_CL_STREAM_RESPONSE;
if (debug > 2) {
fprintf(where,"recv_dlpi_cl_stream: the response type is set...\n");
fflush(where);
}
/* set-up the data buffer with the requested alignment and offset */
message = (char *)malloc(DATABUFFERLEN);
if (message == NULL) {
printf("malloc(%d) failed!\n", DATABUFFERLEN);
exit(1);
}
/* We now alter the message_ptr variable to be at the desired */
/* alignment with the desired offset. */
if (debug > 1) {
fprintf(where,"recv_dlpi_cl_stream: requested alignment of %d\n",
dlpi_cl_stream_request->recv_alignment);
fflush(where);
}
message_ptr = ALIGN_BUFFER(message, dlpi_cl_stream_request->recv_alignment, dlpi_cl_stream_request->recv_offset);
if (dlpi_cl_stream_request->message_size > 0) {
recv_message.maxlen = dlpi_cl_stream_request->message_size;
}
else {
recv_message.maxlen = 4096;
}
recv_message.len = 0;
recv_message.buf = message_ptr;
rctl_message.maxlen = BUFSIZ;
rctl_message.len = 0;
rctl_message.buf = rctl_data;
if (debug > 1) {
fprintf(where,
"recv_dlpi_cl_stream: receive alignment and offset set...\n");
fflush(where);
}
if (debug > 1) {
fprintf(where,"recv_dlpi_cl_stream: grabbing a descriptor...\n");
fflush(where);
}
#ifdef __alpha
/* ok - even on a DEC box, strings are strings. I din't really want */
/* to ntohl the words of a string. since I don't want to teach the */
/* send_ and recv_ _request and _response routines about the types, */
/* I will put "anti-ntohl" calls here. I imagine that the "pure" */
/* solution would be to use XDR, but I am still leary of being able */
/* to find XDR libs on all platforms I want running netperf. raj */
{
int *charword;
int *initword;
int *lastword;
initword = (int *) dlpi_cl_stream_request->dlpi_device;
lastword = initword + ((dlpi_cl_stream_request->dev_name_len + 3) / 4);
for (charword = initword;
charword < lastword;
charword++) {
*charword = htonl(*charword);
}
}
#endif /* __alpha */
data_descriptor = dl_open(dlpi_cl_stream_request->dlpi_device,
dlpi_cl_stream_request->ppa);
if (data_descriptor < 0) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
/* The initiator may have wished-us to modify the window */
/* sizes. We should give it a shot. If he didn't ask us to change the */
/* sizes, we should let him know what sizes were in use at this end. */
/* If none of this code is compiled-in, then we will tell the */
/* initiator that we were unable to play with the sizes by */
/* setting the size in the response to -1. */
#ifdef DL_HP_SET_LOCAL_WIN_REQ
if (dlpi_cl_stream_request->recv_win_size) {
dlpi_cl_stream_response->recv_win_size = -1;
}
#else /* the system won't let us play with the buffers */
dlpi_cl_stream_response->recv_win_size = -1;
#endif /* DL_HP_SET_LOCAL_WIN_REQ */
dlpi_cl_stream_response->test_length = dlpi_cl_stream_request->test_length;
/* bind the sap and retrieve the dlsap assigned by the system */
dlpi_cl_stream_response->station_addr_len = 14; /* arbitrary */
if (dl_bind(data_descriptor,
dlpi_cl_stream_request->sap,
DL_CLDLS,
(char *)dlpi_cl_stream_response->station_addr,
&dlpi_cl_stream_response->station_addr_len) != 0) {
fprintf(where,"send_dlpi_cl_stream: bind failure\n");
fflush(where);
exit(1);
}
netperf_response.content.serv_errno = 0;
/* But wait, there's more. If the initiator wanted cpu measurements, */
/* then we must call the calibrate routine, which will return the max */
/* rate back to the initiator. If the CPU was not to be measured, or */
/* something went wrong with the calibration, we will return a -1 to */
/* the initiator. */
dlpi_cl_stream_response->cpu_rate = 0.0; /* assume no cpu */
if (dlpi_cl_stream_request->measure_cpu) {
/* We will pass the rate into the calibration routine. If the */
/* user did not specify one, it will be 0.0, and we will do a */
/* "real" calibration. Otherwise, all it will really do is */
/* store it away... */
dlpi_cl_stream_response->measure_cpu = 1;
dlpi_cl_stream_response->cpu_rate = calibrate_local_cpu(dlpi_cl_stream_request->cpu_rate);
}
message_size = dlpi_cl_stream_request->message_size;
test_time = dlpi_cl_stream_request->test_length;
send_response();
/* Now it's time to start receiving data on the connection. We will */
/* first grab the apropriate counters and then start grabbing. */
cpu_start(dlpi_cl_stream_request->measure_cpu);
/* The loop will exit when the timer pops, or if we happen to recv a */
/* message of less than send_size bytes... */
times_up = 0;
start_timer(test_time + PAD_TIME);
if (debug) {
fprintf(where,"recv_dlpi_cl_stream: about to enter inner sanctum.\n");
fflush(where);
}
while (!times_up) {
if((getmsg(data_descriptor,
&rctl_message,
&recv_message,
&flags) != 0) ||
(data_ind->dl_primitive != DL_UNITDATA_IND)) {
if (errno == EINTR) {
/* Again, we have likely hit test-end time */
break;
}
fprintf(where,
"dlpi_recv_cl_stream: getmsg failure: errno %d primitive 0x%x\n",
errno,
data_ind->dl_primitive);
fflush(where);
netperf_response.content.serv_errno = 996;
send_response();
exit(1);
}
messages_recvd++;
}
if (debug) {
fprintf(where,"recv_dlpi_cl_stream: got %d messages.\n",messages_recvd);
fflush(where);
}
/* The loop now exits due timer or < send_size bytes received. */
cpu_stop(dlpi_cl_stream_request->measure_cpu,&elapsed_time);
if (times_up) {
/* we ended on a timer, subtract the PAD_TIME */
elapsed_time -= (float)PAD_TIME;
}
else {
stop_timer();
}
if (debug) {
fprintf(where,"recv_dlpi_cl_stream: test ended in %f seconds.\n",elapsed_time);
fflush(where);
}
/* We will count the "off" message */
bytes_received = (messages_recvd * message_size) + len;
/* send the results to the sender */
if (debug) {
fprintf(where,
"recv_dlpi_cl_stream: got %d bytes\n",
bytes_received);
fflush(where);
}
netperf_response.content.response_type = DLPI_CL_STREAM_RESULTS;
dlpi_cl_stream_results->bytes_received = bytes_received;
dlpi_cl_stream_results->messages_recvd = messages_recvd;
dlpi_cl_stream_results->elapsed_time = elapsed_time;
if (dlpi_cl_stream_request->measure_cpu) {
dlpi_cl_stream_results->cpu_util = calc_cpu_util(elapsed_time);
}
else {
dlpi_cl_stream_results->cpu_util = -1.0;
}
if (debug > 1) {
fprintf(where,
"recv_dlpi_cl_stream: test complete, sending results.\n");
fflush(where);
}
send_response();
}
int send_dlpi_cl_rr(char remote_host[])
{
char *tput_title = "\
Local /Remote\n\
Window Size Request Resp. Elapsed Trans.\n\
Send Recv Size Size Time Rate \n\
frames frames bytes bytes secs. per sec \n\n";
char *tput_fmt_0 =
"%7.2f\n";
char *tput_fmt_1_line_1 = "\
%-6d %-6d %-6d %-6d %-6.2f %7.2f \n";
char *tput_fmt_1_line_2 = "\
%-6d %-6d\n";
char *cpu_title = "\
Local /Remote\n\
Window Size Request Resp. Elapsed Trans. CPU CPU S.dem S.dem\n\
Send Recv Size Size Time Rate local remote local remote\n\
frames frames bytes bytes secs. per sec %% %% us/Tr us/Tr\n\n";
char *cpu_fmt_0 =
"%6.3f\n";
char *cpu_fmt_1_line_1 = "\
%-6d %-6d %-6d %-6d %-6.2f %-6.2f %-6.2f %-6.2f %-6.3f %-6.3f\n";
char *cpu_fmt_1_line_2 = "\
%-6d %-6d\n";
char *ksink_fmt = "\
Alignment Offset\n\
Local Remote Local Remote\n\
Send Recv Send Recv\n\
%5d %5d %5d %5d\n";
float elapsed_time;
int dlsap_len;
int flags = 0;
char *send_message_ptr;
char *recv_message_ptr;
char *temp_message_ptr;
char sctl_data[BUFSIZ];
char rctl_data[BUFSIZ];
char dlsap[BUFSIZ];
struct strbuf send_message;
struct strbuf recv_message;
struct strbuf sctl_message;
struct strbuf rctl_message;
/* these are to make reading some of the DLPI control messages easier */
dl_unitdata_ind_t *data_ind = (dl_unitdata_ind_t *)rctl_data;
dl_unitdata_req_t *data_req = (dl_unitdata_req_t *)sctl_data;
dl_uderror_ind_t *uder_ind = (dl_uderror_ind_t *)rctl_data;
int nummessages;
int send_descriptor;
int trans_remaining;
int bytes_xferd;
float local_cpu_utilization;
float local_service_demand;
float remote_cpu_utilization;
float remote_service_demand;
double thruput;
#ifdef WANT_INTERVALS
/* timing stuff */
#define MAX_KEPT_TIMES 1024
int time_index = 0;
int unused_buckets;
int kept_times[MAX_KEPT_TIMES];
int sleep_usecs;
unsigned int total_times=0;
struct timezone dummy_zone;
struct timeval send_time;
struct timeval recv_time;
struct timeval sleep_timeval;
#endif /* WANT_INTERVALS */
struct dlpi_cl_rr_request_struct *dlpi_cl_rr_request;
struct dlpi_cl_rr_response_struct *dlpi_cl_rr_response;
struct dlpi_cl_rr_results_struct *dlpi_cl_rr_result;
dlpi_cl_rr_request =
(struct dlpi_cl_rr_request_struct *)netperf_request.content.test_specific_data;
dlpi_cl_rr_response =
(struct dlpi_cl_rr_response_struct *)netperf_response.content.test_specific_data;
dlpi_cl_rr_result =
(struct dlpi_cl_rr_results_struct *)netperf_response.content.test_specific_data;
/* we want to zero out the times, so we can detect unused entries. */
#ifdef WANT_INTERVALS
time_index = 0;
while (time_index < MAX_KEPT_TIMES) {
kept_times[time_index] = 0;
time_index += 1;
}
time_index = 0;
#endif /* WANT_INTERVALS */
if (print_headers) {
fprintf(where,"DLPI CL REQUEST/RESPONSE TEST\n");
if (local_cpu_usage || remote_cpu_usage)
fprintf(where,cpu_title,format_units());
else
fprintf(where,tput_title,format_units());
}
/* initialize a few counters */
nummessages = 0;
bytes_xferd = 0;
times_up = 0;
/* set-up the data buffer with the requested alignment and offset */
temp_message_ptr = (char *)malloc(req_size+MAXALIGNMENT+MAXOFFSET);
if (temp_message_ptr == NULL) {
printf("malloc(%d) failed!\n", req_size+MAXALIGNMENT+MAXOFFSET);
exit(1);
}
send_message_ptr = (char *)(( (long)temp_message_ptr +
(long) local_send_align - 1) &
~((long) local_send_align - 1));
send_message_ptr = send_message_ptr + local_send_offset;
send_message.maxlen = req_size;
send_message.len = req_size;
send_message.buf = send_message_ptr;
temp_message_ptr = (char *)malloc(rsp_size+MAXALIGNMENT+MAXOFFSET);
if (temp_message_ptr == NULL) {
printf("malloc(%d) failed!\n", rsp_size+MAXALIGNMENT+MAXOFFSET);
exit(1);
}
recv_message_ptr = (char *)(( (long)temp_message_ptr +
(long) local_recv_align - 1) &
~((long) local_recv_align - 1));
recv_message_ptr = recv_message_ptr + local_recv_offset;
recv_message.maxlen = rsp_size;
recv_message.len = 0;
recv_message.buf = recv_message_ptr;
sctl_message.maxlen = BUFSIZ;
sctl_message.len = 0;
sctl_message.buf = sctl_data;
rctl_message.maxlen = BUFSIZ;
rctl_message.len = 0;
rctl_message.buf = rctl_data;
/* lets get ourselves a file descriptor */
send_descriptor = dl_open(loc_dlpi_device,loc_ppa);
if (send_descriptor < 0){
perror("netperf: send_dlpi_cl_rr: dlpi cl rr send descriptor");
exit(1);
}
if (debug) {
fprintf(where,"send_dlpi_cl_rr: send_descriptor obtained...\n");
}
/* bind the sap to the descriptor and get the dlsap */
dlsap_len = BUFSIZ;
if (dl_bind(send_descriptor,
dlpi_sap,
DL_CLDLS,
dlsap,
&dlsap_len) != 0) {
fprintf(where,"send_dlpi_cl_rr: bind failure\n");
fflush(where);
exit(1);
}
/* Modify the local socket size. If the user has not requested that */
/* the socket buffers be altered, we will try to find-out what their */
/* values are. If we cannot touch the socket buffer in any way, we */
/* will set the values to -1 to indicate that. The receive socket */
/* must have enough space to hold addressing information so += a */
/* sizeof struct sockaddr_in to it. */
/* this is actually nothing code, and should be replaced with the */
/* alalagous calls in the STREAM test where the window size is set */
/* with the HP DLPI Extension. raj 8/94 */
#ifdef SO_SNDBUF
if (lsw_size > 0) {
if (debug > 1) {
fprintf(where,"netperf: send_dlpi_cl_rr: local window size altered from system default...\n");
fprintf(where," window: %d\n",lsw_size);
}
}
if (lrw_size > 0) {
if (debug > 1) {
fprintf(where,"netperf: send_dlpi_cl_rr: remote window size altered from system default...\n");
fprintf(where," remote: %d\n",lrw_size);
}
}
/* Now, we will find-out what the size actually became, and report */
/* that back to the user. If the call fails, we will just report a -1 */
/* back to the initiator for the recv buffer size. */
if (debug) {
fprintf(where,"netperf: send_dlpi_cl_rr: socket sizes determined...\n");
fprintf(where," send: %d recv: %d\n",lsw_size,lrw_size);
}
#else /* SO_SNDBUF */
lsw_size = -1;
lrw_size = -1;
#endif /* SO_SNDBUF */
/* If the user has requested cpu utilization measurements, we must */
/* calibrate the cpu(s). We will perform this task within the tests */
/* themselves. If the user has specified the cpu rate, then */
/* calibrate_local_cpu will return rather quickly as it will have */
/* nothing to do. If local_cpu_rate is zero, then we will go through */
/* all the "normal" calibration stuff and return the rate back. If */
/* there is no idle counter in the kernel idle loop, the */
/* local_cpu_rate will be set to -1. */
if (local_cpu_usage) {
local_cpu_rate = calibrate_local_cpu(local_cpu_rate);
}
/* Tell the remote end to do a listen. The server alters the socket */
/* paramters on the other side at this point, hence the reason for */
/* all the values being passed in the setup message. If the user did */
/* not specify any of the parameters, they will be passed as 0, which */
/* will indicate to the remote that no changes beyond the system's */
/* default should be used. Alignment is the exception, it will */
/* default to 8, which will be no alignment alterations. */
netperf_request.content.request_type = DO_DLPI_CL_RR;
dlpi_cl_rr_request->recv_win_size = rrw_size;
dlpi_cl_rr_request->send_win_size = rsw_size;
dlpi_cl_rr_request->recv_alignment = remote_recv_align;
dlpi_cl_rr_request->recv_offset = remote_recv_offset;
dlpi_cl_rr_request->send_alignment = remote_send_align;
dlpi_cl_rr_request->send_offset = remote_send_offset;
dlpi_cl_rr_request->request_size = req_size;
dlpi_cl_rr_request->response_size = rsp_size;
dlpi_cl_rr_request->measure_cpu = remote_cpu_usage;
dlpi_cl_rr_request->cpu_rate = remote_cpu_rate;
dlpi_cl_rr_request->ppa = rem_ppa;
dlpi_cl_rr_request->sap = dlpi_sap;
dlpi_cl_rr_request->dev_name_len = strlen(rem_dlpi_device);
strcpy(dlpi_cl_rr_request->dlpi_device,
rem_dlpi_device);
#ifdef __alpha
/* ok - even on a DEC box, strings are strings. I din't really want */
/* to ntohl the words of a string. since I don't want to teach the */
/* send_ and recv_ _request and _response routines about the types, */
/* I will put "anti-ntohl" calls here. I imagine that the "pure" */
/* solution would be to use XDR, but I am still leary of being able */
/* to find XDR libs on all platforms I want running netperf. raj */
{
int *charword;
int *initword;
int *lastword;
initword = (int *) dlpi_cl_rr_request->dlpi_device;
lastword = initword + ((strlen(rem_dlpi_device) + 3) / 4);
for (charword = initword;
charword < lastword;
charword++) {
*charword = ntohl(*charword);
}
}
#endif /* __alpha */
if (test_time) {
dlpi_cl_rr_request->test_length = test_time;
}
else {
dlpi_cl_rr_request->test_length = test_trans * -1;
}
if (debug > 1) {
fprintf(where,"netperf: send_dlpi_cl_rr: requesting DLPI CL request/response test\n");
}
send_request();
/* The response from the remote will contain all of the relevant */
/* socket parameters for this test type. We will put them back into */
/* the variables here so they can be displayed if desired. The */
/* remote will have calibrated CPU if necessary, and will have done */
/* all the needed set-up we will have calibrated the cpu locally */
/* before sending the request, and will grab the counter value right */
/* after the connect returns. The remote will grab the counter right */
/* after the accept call. This saves the hassle of extra messages */
/* being sent for the tests. */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"remote listen done.\n");
rrw_size = dlpi_cl_rr_response->recv_win_size;
rsw_size = dlpi_cl_rr_response->send_win_size;
remote_cpu_usage= dlpi_cl_rr_response->measure_cpu;
remote_cpu_rate = dlpi_cl_rr_response->cpu_rate;
/* set-up the destination addressing control info */
data_req->dl_primitive = DL_UNITDATA_REQ;
bcopy((char *)(dlpi_cl_rr_response->station_addr),
((char *)data_req + sizeof(dl_unitdata_req_t)),
dlpi_cl_rr_response->station_addr_len);
data_req->dl_dest_addr_offset = sizeof(dl_unitdata_req_t);
data_req->dl_dest_addr_length = dlpi_cl_rr_response->station_addr_len;
/* there is a dl_priority structure too, but I am ignoring it for */
/* the time being. */
sctl_message.len = sizeof(dl_unitdata_req_t) +
data_req->dl_dest_addr_length;
/* famous last words - some DLPI providers get unhappy if the
priority stuff is not initialized. fix from Nicolas Thomas. */
data_req->dl_priority.dl_min = DL_QOS_DONT_CARE;
data_req->dl_priority.dl_max = DL_QOS_DONT_CARE;
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("netperf: remote error");
exit(1);
}
/* Data Socket set-up is finished. If there were problems, either the */
/* connect would have failed, or the previous response would have */
/* indicated a problem. I failed to see the value of the extra */
/* message after the accept on the remote. If it failed, we'll see it */
/* here. If it didn't, we might as well start pumping data. */
/* Set-up the test end conditions. For a request/response test, they */
/* can be either time or transaction based. */
if (test_time) {
/* The user wanted to end the test after a period of time. */
times_up = 0;
trans_remaining = 0;
start_timer(test_time);
}
else {
/* The tester wanted to send a number of bytes. */
trans_remaining = test_bytes;
times_up = 1;
}
/* The cpu_start routine will grab the current time and possibly */
/* value of the idle counter for later use in measuring cpu */
/* utilization and/or service demand and thruput. */
cpu_start(local_cpu_usage);
/* We use an "OR" to control test execution. When the test is */
/* controlled by time, the byte count check will always return false. */
/* When the test is controlled by byte count, the time test will */
/* always return false. When the test is finished, the whole */
/* expression will go false and we will stop sending data. I think I */
/* just arbitrarily decrement trans_remaining for the timed test, but */
/* will not do that just yet... One other question is whether or not */
/* the send buffer and the receive buffer should be the same buffer. */
while ((!times_up) || (trans_remaining > 0)) {
/* send the request */
#ifdef WANT_INTERVALS
gettimeofday(&send_time,&dummy_zone);
#endif /* WANT_INTERVALS */
if(putmsg(send_descriptor,
&sctl_message,
&send_message,
0) != 0) {
if (errno == EINTR) {
/* We likely hit */
/* test-end time. */
break;
}
/* there is more we could do here, but it can wait */
perror("send_dlpi_cl_rr: data send error");
exit(1);
}
/* receive the response. at some point, we will need to handle */
/* sending responses which are greater than the datalink MTU. we */
/* may also want to add some DLPI error checking, but for now we */
/* will ignore that and just let errors stop the test with little */
/* indication of what might actually be wrong. */
if((getmsg(send_descriptor,
&rctl_message,
&recv_message,
&flags) != 0) ||
(data_ind->dl_primitive != DL_UNITDATA_IND)) {
if (errno == EINTR) {
/* Again, we have likely hit test-end time */
break;
}
fprintf(where,
"send_dlpi_cl_rr: recv error: errno %d primitive 0x%x\n",
errno,
data_ind->dl_primitive);
fflush(where);
exit(1);
}
#ifdef WANT_INTERVALS
gettimeofday(&recv_time,&dummy_zone);
/* now we do some arithmatic on the two timevals */
if (recv_time.tv_usec < send_time.tv_usec) {
/* we wrapped around a second */
recv_time.tv_usec += 1000000;
recv_time.tv_sec -= 1;
}
/* and store it away */
kept_times[time_index] = (recv_time.tv_sec - send_time.tv_sec) * 1000000;
kept_times[time_index] += (recv_time.tv_usec - send_time.tv_usec);
/* at this point, we may wish to sleep for some period of */
/* time, so we see how long that last transaction just took, */
/* and sleep for the difference of that and the interval. We */
/* will not sleep if the time would be less than a */
/* millisecond. */
if (interval_usecs > 0) {
sleep_usecs = interval_usecs - kept_times[time_index];
if (sleep_usecs > 1000) {
/* we sleep */
sleep_timeval.tv_sec = sleep_usecs / 1000000;
sleep_timeval.tv_usec = sleep_usecs % 1000000;
select(0,
0,
0,
0,
&sleep_timeval);
}
}
/* now up the time index */
time_index = (time_index +1)%MAX_KEPT_TIMES;
#endif /* WANT_INTERVALS */
nummessages++;
if (trans_remaining) {
trans_remaining--;
}
if (debug > 3) {
fprintf(where,"Transaction %d completed\n",nummessages);
fflush(where);
}
}
/* this call will always give us the elapsed time for the test, and */
/* will also store-away the necessaries for cpu utilization */
cpu_stop(local_cpu_usage,&elapsed_time); /* was cpu being measured? */
/* how long did we really run? */
/* Get the statistics from the remote end. The remote will have */
/* calculated service demand and all those interesting things. If it */
/* wasn't supposed to care, it will return obvious values. */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"remote results obtained\n");
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("netperf: remote error");
exit(1);
}
/* We now calculate what our thruput was for the test. In the future, */
/* we may want to include a calculation of the thruput measured by */
/* the remote, but it should be the case that for a UDP stream test, */
/* that the two numbers should be *very* close... We calculate */
/* bytes_sent regardless of the way the test length was controlled. */
/* If it was time, we needed to, and if it was by bytes, the user may */
/* have specified a number of bytes that wasn't a multiple of the */
/* send_size, so we really didn't send what he asked for ;-) We use */
bytes_xferd = (req_size * nummessages) + (rsp_size * nummessages);
thruput = calc_thruput(bytes_xferd);
if (local_cpu_usage || remote_cpu_usage) {
/* We must now do a little math for service demand and cpu */
/* utilization for the system(s) */
/* Of course, some of the information might be bogus because */
/* there was no idle counter in the kernel(s). We need to make */
/* a note of this for the user's benefit...*/
if (local_cpu_usage) {
if (local_cpu_rate == 0.0) {
fprintf(where,"WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n");
fprintf(where,"Local CPU usage numbers based on process information only!\n");
fflush(where);
}
local_cpu_utilization = calc_cpu_util(0.0);
/* since calc_service demand is doing ms/Kunit we will */
/* multiply the number of transaction by 1024 to get */
/* "good" numbers */
local_service_demand = calc_service_demand((double) nummessages*1024,
0.0,
0.0,
0);
}
else {
local_cpu_utilization = -1.0;
local_service_demand = -1.0;
}
if (remote_cpu_usage) {
if (remote_cpu_rate == 0.0) {
fprintf(where,"DANGER DANGER DANGER DANGER DANGER DANGER DANGER!\n");
fprintf(where,"Remote CPU usage numbers based on process information only!\n");
fflush(where);
}
remote_cpu_utilization = dlpi_cl_rr_result->cpu_util;
/* since calc_service demand is doing ms/Kunit we will */
/* multiply the number of transaction by 1024 to get */
/* "good" numbers */
remote_service_demand = calc_service_demand((double) nummessages*1024,
0.0,
remote_cpu_utilization,
dlpi_cl_rr_result->num_cpus);
}
else {
remote_cpu_utilization = -1.0;
remote_service_demand = -1.0;
}
/* We are now ready to print all the information. If the user */
/* has specified zero-level verbosity, we will just print the */
/* local service demand, or the remote service demand. If the */
/* user has requested verbosity level 1, he will get the basic */
/* "streamperf" numbers. If the user has specified a verbosity */
/* of greater than 1, we will display a veritable plethora of */
/* background information from outside of this block as it it */
/* not cpu_measurement specific... */
switch (verbosity) {
case 0:
if (local_cpu_usage) {
fprintf(where,
cpu_fmt_0,
local_service_demand);
}
else {
fprintf(where,
cpu_fmt_0,
remote_service_demand);
}
break;
case 1:
case 2:
fprintf(where,
cpu_fmt_1_line_1, /* the format string */
lsw_size, /* local sendbuf size */
lrw_size,
req_size, /* how large were the requests */
rsp_size, /* guess */
elapsed_time, /* how long was the test */
nummessages/elapsed_time,
local_cpu_utilization, /* local cpu */
remote_cpu_utilization, /* remote cpu */
local_service_demand, /* local service demand */
remote_service_demand); /* remote service demand */
fprintf(where,
cpu_fmt_1_line_2,
rsw_size,
rrw_size);
break;
}
}
else {
/* The tester did not wish to measure service demand. */
switch (verbosity) {
case 0:
fprintf(where,
tput_fmt_0,
nummessages/elapsed_time);
break;
case 1:
case 2:
fprintf(where,
tput_fmt_1_line_1, /* the format string */
lsw_size,
lrw_size,
req_size, /* how large were the requests */
rsp_size, /* how large were the responses */
elapsed_time, /* how long did it take */
nummessages/elapsed_time);
fprintf(where,
tput_fmt_1_line_2,
rsw_size, /* remote recvbuf size */
rrw_size);
break;
}
}
/* it would be a good thing to include information about some of the */
/* other parameters that may have been set for this test, but at the */
/* moment, I do not wish to figure-out all the formatting, so I will */
/* just put this comment here to help remind me that it is something */
/* that should be done at a later time. */
if (verbosity > 1) {
/* The user wanted to know it all, so we will give it to him. */
/* This information will include as much as we can find about */
/* UDP statistics, the alignments of the sends and receives */
/* and all that sort of rot... */
#ifdef WANT_INTERVALS
kept_times[MAX_KEPT_TIMES] = 0;
time_index = 0;
while (time_index < MAX_KEPT_TIMES) {
if (kept_times[time_index] > 0) {
total_times += kept_times[time_index];
}
else
unused_buckets++;
time_index += 1;
}
total_times /= (MAX_KEPT_TIMES-unused_buckets);
fprintf(where,
"Average response time %d usecs\n",
total_times);
#endif
}
}
int
recv_dlpi_cl_rr()
{
char *message;
int data_descriptor;
int flags = 0;
int measure_cpu;
char *recv_message_ptr;
char *send_message_ptr;
char sctl_data[BUFSIZ];
char rctl_data[BUFSIZ];
char dlsap[BUFSIZ];
struct strbuf send_message;
struct strbuf recv_message;
struct strbuf sctl_message;
struct strbuf rctl_message;
/* these are to make reading some of the DLPI control messages easier */
dl_unitdata_ind_t *data_ind = (dl_unitdata_ind_t *)rctl_data;
dl_unitdata_req_t *data_req = (dl_unitdata_req_t *)sctl_data;
dl_uderror_ind_t *uder_ind = (dl_uderror_ind_t *)rctl_data;
int trans_received;
int trans_remaining;
float elapsed_time;
struct dlpi_cl_rr_request_struct *dlpi_cl_rr_request;
struct dlpi_cl_rr_response_struct *dlpi_cl_rr_response;
struct dlpi_cl_rr_results_struct *dlpi_cl_rr_results;
dlpi_cl_rr_request =
(struct dlpi_cl_rr_request_struct *)netperf_request.content.test_specific_data;
dlpi_cl_rr_response =
(struct dlpi_cl_rr_response_struct *)netperf_response.content.test_specific_data;
dlpi_cl_rr_results =
(struct dlpi_cl_rr_results_struct *)netperf_response.content.test_specific_data;
if (debug) {
fprintf(where,"netserver: recv_dlpi_cl_rr: entered...\n");
fflush(where);
}
/* We want to set-up the listen descriptor with all the desired */
/* parameters and then let the initiator know that all is ready. If */
/* socket size defaults are to be used, then the initiator will have */
/* sent us 0's. If the descriptor sizes cannot be changed, then we will */
/* send-back what they are. If that information cannot be determined, */
/* then we send-back -1's for the sizes. If things go wrong for any */
/* reason, we will drop back ten yards and punt. */
/* If anything goes wrong, we want the remote to know about it. It */
/* would be best if the error that the remote reports to the user is */
/* the actual error we encountered, rather than some bogus unexpected */
/* response type message. */
if (debug) {
fprintf(where,"recv_dlpi_cl_rr: setting the response type...\n");
fflush(where);
}
netperf_response.content.response_type = DLPI_CL_RR_RESPONSE;
if (debug) {
fprintf(where,"recv_dlpi_cl_rr: the response type is set...\n");
fflush(where);
}
/* set-up the data buffer with the requested alignment and offset */
message = (char *)malloc(DATABUFFERLEN);
if (message == NULL) {
printf("malloc(%d) failed!\n", DATABUFFERLEN);
exit(1);
}
/* We now alter the message_ptr variables to be at the desired */
/* alignments with the desired offsets. */
if (debug) {
fprintf(where,
"recv_dlpi_cl_rr: requested recv alignment of %d offset %d\n",
dlpi_cl_rr_request->recv_alignment,
dlpi_cl_rr_request->recv_offset);
fprintf(where,
"recv_dlpi_cl_rr: requested send alignment of %d offset %d\n",
dlpi_cl_rr_request->send_alignment,
dlpi_cl_rr_request->send_offset);
fflush(where);
}
recv_message_ptr = ALIGN_BUFFER(message, dlpi_cl_rr_request->recv_alignment, dlpi_cl_rr_request->recv_offset);
recv_message.maxlen = dlpi_cl_rr_request->request_size;
recv_message.len = 0;
recv_message.buf = recv_message_ptr;
send_message_ptr = ALIGN_BUFFER(message, dlpi_cl_rr_request->send_alignment, dlpi_cl_rr_request->send_offset);
send_message.maxlen = dlpi_cl_rr_request->response_size;
send_message.len = dlpi_cl_rr_request->response_size;
send_message.buf = send_message_ptr;
sctl_message.maxlen = BUFSIZ;
sctl_message.len = 0;
sctl_message.buf = sctl_data;
rctl_message.maxlen = BUFSIZ;
rctl_message.len = 0;
rctl_message.buf = rctl_data;
if (debug) {
fprintf(where,"recv_dlpi_cl_rr: receive alignment and offset set...\n");
fprintf(where,"recv_dlpi_cl_rr: grabbing a socket...\n");
fflush(where);
}
#ifdef __alpha
/* ok - even on a DEC box, strings are strings. I din't really want */
/* to ntohl the words of a string. since I don't want to teach the */
/* send_ and recv_ _request and _response routines about the types, */
/* I will put "anti-ntohl" calls here. I imagine that the "pure" */
/* solution would be to use XDR, but I am still leary of being able */
/* to find XDR libs on all platforms I want running netperf. raj */
{
int *charword;
int *initword;
int *lastword;
initword = (int *) dlpi_cl_rr_request->dlpi_device;
lastword = initword + ((dlpi_cl_rr_request->dev_name_len + 3) / 4);
for (charword = initword;
charword < lastword;
charword++) {
*charword = htonl(*charword);
}
}
#endif /* __alpha */
data_descriptor = dl_open(dlpi_cl_rr_request->dlpi_device,
dlpi_cl_rr_request->ppa);
if (data_descriptor < 0) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
/* The initiator may have wished-us to modify the window */
/* sizes. We should give it a shot. If he didn't ask us to change the */
/* sizes, we should let him know what sizes were in use at this end. */
/* If none of this code is compiled-in, then we will tell the */
/* initiator that we were unable to play with the sizes by */
/* setting the size in the response to -1. */
#ifdef DL_HP_SET_LOCAL_WIN_REQ
if (dlpi_cl_rr_request->recv_win_size) {
}
if (dlpi_cl_rr_request->send_win_size) {
}
/* Now, we will find-out what the sizes actually became, and report */
/* them back to the user. If the calls fail, we will just report a -1 */
/* back to the initiator for the buffer size. */
#else /* the system won't let us play with the buffers */
dlpi_cl_rr_response->recv_win_size = -1;
dlpi_cl_rr_response->send_win_size = -1;
#endif /* DL_HP_SET_LOCAL_WIN_REQ */
/* bind the sap and retrieve the dlsap assigned by the system */
dlpi_cl_rr_response->station_addr_len = 14; /* arbitrary */
if (dl_bind(data_descriptor,
dlpi_cl_rr_request->sap,
DL_CLDLS,
(char *)dlpi_cl_rr_response->station_addr,
&dlpi_cl_rr_response->station_addr_len) != 0) {
fprintf(where,"send_dlpi_cl_rr: bind failure\n");
fflush(where);
exit(1);
}
netperf_response.content.serv_errno = 0;
/* But wait, there's more. If the initiator wanted cpu measurements, */
/* then we must call the calibrate routine, which will return the max */
/* rate back to the initiator. If the CPU was not to be measured, or */
/* something went wrong with the calibration, we will return a 0.0 to */
/* the initiator. */
dlpi_cl_rr_response->cpu_rate = 0.0; /* assume no cpu */
if (dlpi_cl_rr_request->measure_cpu) {
dlpi_cl_rr_response->measure_cpu = 1;
dlpi_cl_rr_response->cpu_rate = calibrate_local_cpu(dlpi_cl_rr_request->cpu_rate);
}
send_response();
/* Now it's time to start receiving data on the connection. We will */
/* first grab the apropriate counters and then start receiving. */
cpu_start(dlpi_cl_rr_request->measure_cpu);
if (dlpi_cl_rr_request->test_length > 0) {
times_up = 0;
trans_remaining = 0;
start_timer(dlpi_cl_rr_request->test_length + PAD_TIME);
}
else {
times_up = 1;
trans_remaining = dlpi_cl_rr_request->test_length * -1;
}
while ((!times_up) || (trans_remaining > 0)) {
/* receive the request from the other side. at some point we need */
/* to handle "logical" requests and responses which are larger */
/* than the data link MTU */
if((getmsg(data_descriptor,
&rctl_message,
&recv_message,
&flags) != 0) ||
(data_ind->dl_primitive != DL_UNITDATA_IND)) {
if (errno == EINTR) {
/* Again, we have likely hit test-end time */
break;
}
fprintf(where,
"dlpi_recv_cl_rr: getmsg failure: errno %d primitive 0x%x\n",
errno,
data_ind->dl_primitive);
fprintf(where,
" recevied %u transactions\n",
trans_received);
fflush(where);
netperf_response.content.serv_errno = 995;
send_response();
exit(1);
}
/* Now, send the response to the remote. first copy the dlsap */
/* information from the receive to the sending control message */
data_req->dl_dest_addr_offset = sizeof(dl_unitdata_req_t);
bcopy((char *)data_ind + data_ind->dl_src_addr_offset,
(char *)data_req + data_req->dl_dest_addr_offset,
data_ind->dl_src_addr_length);
data_req->dl_dest_addr_length = data_ind->dl_src_addr_length;
data_req->dl_primitive = DL_UNITDATA_REQ;
/* be sure to initialize the priority fields. fix from Nicholas
Thomas */
data_req->dl_priority.dl_min = DL_QOS_DONT_CARE;
data_req->dl_priority.dl_max = DL_QOS_DONT_CARE;
sctl_message.len = sizeof(dl_unitdata_req_t) +
data_ind->dl_src_addr_length;
if(putmsg(data_descriptor,
&sctl_message,
&send_message,
0) != 0) {
if (errno == EINTR) {
/* We likely hit */
/* test-end time. */
break;
}
/* there is more we could do here, but it can wait */
fprintf(where,
"dlpi_recv_cl_rr: putmsg failure: errno %d\n",
errno);
fflush(where);
netperf_response.content.serv_errno = 993;
send_response();
exit(1);
}
trans_received++;
if (trans_remaining) {
trans_remaining--;
}
if (debug) {
fprintf(where,
"recv_dlpi_cl_rr: Transaction %d complete.\n",
trans_received);
fflush(where);
}
}
/* The loop now exits due to timeout or transaction count being */
/* reached */
cpu_stop(dlpi_cl_rr_request->measure_cpu,&elapsed_time);
if (times_up) {
/* we ended the test by time, which was at least 2 seconds */
/* longer than we wanted to run. so, we want to subtract */
/* PAD_TIME from the elapsed_time. */
elapsed_time -= PAD_TIME;
}
/* send the results to the sender */
if (debug) {
fprintf(where,
"recv_dlpi_cl_rr: got %d transactions\n",
trans_received);
fflush(where);
}
dlpi_cl_rr_results->bytes_received = (trans_received *
(dlpi_cl_rr_request->request_size +
dlpi_cl_rr_request->response_size));
dlpi_cl_rr_results->trans_received = trans_received;
dlpi_cl_rr_results->elapsed_time = elapsed_time;
if (dlpi_cl_rr_request->measure_cpu) {
dlpi_cl_rr_results->cpu_util = calc_cpu_util(elapsed_time);
}
if (debug) {
fprintf(where,
"recv_dlpi_cl_rr: test complete, sending results.\n");
fflush(where);
}
send_response();
}
int
recv_dlpi_co_rr()
{
char *message;
SOCKET s_listen,data_descriptor;
int measure_cpu;
int flags = 0;
char *recv_message_ptr;
char *send_message_ptr;
struct strbuf send_message;
struct strbuf recv_message;
int trans_received;
int trans_remaining;
int request_bytes_remaining;
int timed_out = 0;
float elapsed_time;
struct dlpi_co_rr_request_struct *dlpi_co_rr_request;
struct dlpi_co_rr_response_struct *dlpi_co_rr_response;
struct dlpi_co_rr_results_struct *dlpi_co_rr_results;
dlpi_co_rr_request = (struct dlpi_co_rr_request_struct *)netperf_request.content.test_specific_data;
dlpi_co_rr_response = (struct dlpi_co_rr_response_struct *)netperf_response.content.test_specific_data;
dlpi_co_rr_results = (struct dlpi_co_rr_results_struct *)netperf_response.content.test_specific_data;
if (debug) {
fprintf(where,"netserver: recv_dlpi_co_rr: entered...\n");
fflush(where);
}
/* We want to set-up the listen socket with all the desired */
/* parameters and then let the initiator know that all is ready. If */
/* socket size defaults are to be used, then the initiator will have */
/* sent us 0's. If the socket sizes cannot be changed, then we will */
/* send-back what they are. If that information cannot be determined, */
/* then we send-back -1's for the sizes. If things go wrong for any */
/* reason, we will drop back ten yards and punt. */
/* If anything goes wrong, we want the remote to know about it. It */
/* would be best if the error that the remote reports to the user is */
/* the actual error we encountered, rather than some bogus unexpected */
/* response type message. */
if (debug) {
fprintf(where,"recv_dlpi_co_rr: setting the response type...\n");
fflush(where);
}
netperf_response.content.response_type = DLPI_CO_RR_RESPONSE;
if (debug) {
fprintf(where,"recv_dlpi_co_rr: the response type is set...\n");
fflush(where);
}
/* set-up the data buffer with the requested alignment and offset */
message = (char *)malloc(DATABUFFERLEN);
if (message == NULL) {
printf("malloc(%d) failed!\n", DATABUFFERLEN);
exit(1);
}
/* We now alter the message_ptr variables to be at the desired */
/* alignments with the desired offsets. */
if (debug) {
fprintf(where,
"recv_dlpi_co_rr: requested recv alignment of %d offset %d\n",
dlpi_co_rr_request->recv_alignment,
dlpi_co_rr_request->recv_offset);
fprintf(where,
"recv_dlpi_co_rr: requested send alignment of %d offset %d\n",
dlpi_co_rr_request->send_alignment,
dlpi_co_rr_request->send_offset);
fflush(where);
}
recv_message_ptr = ALIGN_BUFFER(message, dlpi_co_rr_request->recv_alignment, dlpi_co_rr_request->recv_offset);
recv_message.maxlen = dlpi_co_rr_request->request_size;
recv_message.len = 0;
recv_message.buf = recv_message_ptr;
send_message_ptr = ALIGN_BUFFER(message, dlpi_co_rr_request->send_alignment, dlpi_co_rr_request->send_offset);
send_message.maxlen = dlpi_co_rr_request->response_size;
send_message.len = dlpi_co_rr_request->response_size;
send_message.buf = send_message_ptr;
if (debug) {
fprintf(where,"recv_dlpi_co_rr: receive alignment and offset set...\n");
fprintf(where,"recv_dlpi_co_rr: send_message.buf %x .len %d .maxlen %d\n",
send_message.buf,send_message.len,send_message.maxlen);
fprintf(where,"recv_dlpi_co_rr: recv_message.buf %x .len %d .maxlen %d\n",
recv_message.buf,recv_message.len,recv_message.maxlen);
fflush(where);
}
/* Let's clear-out our sockaddr for the sake of cleanlines. Then we */
/* can put in OUR values !-) At some point, we may want to nail this */
/* socket to a particular network-level address, but for now, */
/* INADDR_ANY should be just fine. */
/* Grab a socket to listen on, and then listen on it. */
if (debug) {
fprintf(where,"recv_dlpi_co_rr: grabbing a socket...\n");
fflush(where);
}
/* lets grab a file descriptor for a particular link */
#ifdef __alpha
/* ok - even on a DEC box, strings are strings. I din't really want */
/* to ntohl the words of a string. since I don't want to teach the */
/* send_ and recv_ _request and _response routines about the types, */
/* I will put "anti-ntohl" calls here. I imagine that the "pure" */
/* solution would be to use XDR, but I am still leary of being able */
/* to find XDR libs on all platforms I want running netperf. raj */
{
int *charword;
int *initword;
int *lastword;
initword = (int *) dlpi_co_rr_request->dlpi_device;
lastword = initword + ((dlpi_co_rr_request->dev_name_len + 3) / 4);
for (charword = initword;
charword < lastword;
charword++) {
*charword = htonl(*charword);
}
}
#endif /* __alpha */
if ((data_descriptor = dl_open(dlpi_co_rr_request->dlpi_device,
dlpi_co_rr_request->ppa)) < 0) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
/* bind the file descriptor to a sap and get the resultant dlsap */
dlpi_co_rr_response->station_addr_len = 14; /*arbitrary needs fixing */
if (dl_bind(data_descriptor,
dlpi_co_rr_request->sap,
DL_CODLS,
(char *)dlpi_co_rr_response->station_addr,
&dlpi_co_rr_response->station_addr_len) != 0) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
/* The initiator may have wished-us to modify the socket buffer */
/* sizes. We should give it a shot. If he didn't ask us to change the */
/* sizes, we should let him know what sizes were in use at this end. */
/* If none of this code is compiled-in, then we will tell the */
/* initiator that we were unable to play with the socket buffer by */
/* setting the size in the response to -1. */
#ifdef DL_HP_SET_LOCAL_WIN_REQ
if (dlpi_co_rr_request->recv_win_size) {
/* SMOP */
}
if (dlpi_co_rr_request->send_win_size) {
/* SMOP */
}
/* Now, we will find-out what the sizes actually became, and report */
/* them back to the user. If the calls fail, we will just report a -1 */
/* back to the initiator for the buffer size. */
#else /* the system won't let us play with the buffers */
dlpi_co_rr_response->recv_win_size = -1;
dlpi_co_rr_response->send_win_size = -1;
#endif /* DL_HP_SET_LOCAL_WIN_REQ */
/* we may have been requested to enable the copy avoidance features. */
/* can we actually do this with DLPI, the world wonders */
if (dlpi_co_rr_request->so_rcvavoid) {
#ifdef SO_RCV_COPYAVOID
dlpi_co_rr_response->so_rcvavoid = 0;
#else
/* it wasn't compiled in... */
dlpi_co_rr_response->so_rcvavoid = 0;
#endif
}
if (dlpi_co_rr_request->so_sndavoid) {
#ifdef SO_SND_COPYAVOID
dlpi_co_rr_response->so_sndavoid = 0;
#else
/* it wasn't compiled in... */
dlpi_co_rr_response->so_sndavoid = 0;
#endif
}
netperf_response.content.serv_errno = 0;
/* But wait, there's more. If the initiator wanted cpu measurements, */
/* then we must call the calibrate routine, which will return the max */
/* rate back to the initiator. If the CPU was not to be measured, or */
/* something went wrong with the calibration, we will return a 0.0 to */
/* the initiator. */
dlpi_co_rr_response->cpu_rate = 0.0; /* assume no cpu */
if (dlpi_co_rr_request->measure_cpu) {
dlpi_co_rr_response->measure_cpu = 1;
dlpi_co_rr_response->cpu_rate = calibrate_local_cpu(dlpi_co_rr_request->cpu_rate);
}
send_response();
/* accept a connection on this file descriptor. at some point, */
/* dl_accept will "do the right thing" with the last two parms, but */
/* for now it ignores them, so we will pass zeros. */
if(dl_accept(data_descriptor, 0, 0) != 0) {
fprintf(where,
"recv_dlpi_co_rr: error in accept, errno %d\n",
errno);
fflush(where);
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
if (debug) {
fprintf(where,
"recv_dlpi_co_rr: accept completes on the data connection.\n");
fflush(where);
}
/* Now it's time to start receiving data on the connection. We will */
/* first grab the apropriate counters and then start grabbing. */
cpu_start(dlpi_co_rr_request->measure_cpu);
/* The loop will exit when the sender does a shutdown, which will */
/* return a length of zero */
if (dlpi_co_rr_request->test_length > 0) {
times_up = 0;
trans_remaining = 0;
start_timer(dlpi_co_rr_request->test_length + PAD_TIME);
}
else {
times_up = 1;
trans_remaining = dlpi_co_rr_request->test_length * -1;
}
while ((!times_up) || (trans_remaining > 0)) {
request_bytes_remaining = dlpi_co_rr_request->request_size;
/* receive the request from the other side. there needs to be some */
/* more login in place for handling messages larger than link mtu, */
/* but that can wait for later */
while(request_bytes_remaining > 0) {
if((getmsg(data_descriptor,
0,
&recv_message,
&flags)) < 0) {
if (errno == EINTR) {
/* the timer popped */
timed_out = 1;
break;
}
if (debug) {
fprintf(where,"failed getmsg call errno %d\n",errno);
fprintf(where,"recv_message.len %d\n",recv_message.len);
fprintf(where,"send_message.len %d\n",send_message.len);
fflush(where);
}
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
else {
request_bytes_remaining -= recv_message.len;
}
}
if (timed_out) {
/* we hit the end of the test based on time - lets bail out of */
/* here now... */
break;
}
if (debug) {
fprintf(where,"recv_message.len %d\n",recv_message.len);
fprintf(where,"send_message.len %d\n",send_message.len);
fflush(where);
}
/* Now, send the response to the remote */
if((putmsg(data_descriptor,
0,
&send_message,
0)) != 0) {
if (errno == EINTR) {
/* the test timer has popped */
timed_out = 1;
break;
}
netperf_response.content.serv_errno = 994;
send_response();
exit(1);
}
trans_received++;
if (trans_remaining) {
trans_remaining--;
}
if (debug) {
fprintf(where,
"recv_dlpi_co_rr: Transaction %d complete\n",
trans_received);
fflush(where);
}
}
/* The loop now exits due to timeout or transaction count being */
/* reached */
cpu_stop(dlpi_co_rr_request->measure_cpu,&elapsed_time);
if (timed_out) {
/* we ended the test by time, which was at least 2 seconds */
/* longer than we wanted to run. so, we want to subtract */
/* PAD_TIME from the elapsed_time. */
elapsed_time -= PAD_TIME;
}
/* send the results to the sender */
if (debug) {
fprintf(where,
"recv_dlpi_co_rr: got %d transactions\n",
trans_received);
fflush(where);
}
dlpi_co_rr_results->bytes_received = (trans_received *
(dlpi_co_rr_request->request_size +
dlpi_co_rr_request->response_size));
dlpi_co_rr_results->trans_received = trans_received;
dlpi_co_rr_results->elapsed_time = elapsed_time;
if (dlpi_co_rr_request->measure_cpu) {
dlpi_co_rr_results->cpu_util = calc_cpu_util(elapsed_time);
}
if (debug) {
fprintf(where,
"recv_dlpi_co_rr: test complete, sending results.\n");
fflush(where);
}
send_response();
}
/* this routine will display the usage string for the DLPI tests */
void
print_dlpi_usage()
{
fwrite(dlpi_usage, sizeof(char), strlen(dlpi_usage), stdout);
}
/* this routine will scan the command line for DLPI test arguments */
void
scan_dlpi_args(int argc, char *argv[])
{
extern int optind, opterrs; /* index of first unused arg */
extern char *optarg; /* pointer to option string */
int c;
char arg1[BUFSIZ], /* argument holders */
arg2[BUFSIZ];
if (no_control) {
fprintf(where,
"The DLPI tests do not know how to run with no control connection\n");
exit(-1);
}
/* Go through all the command line arguments and break them */
/* out. For those options that take two parms, specifying only */
/* the first will set both to that value. Specifying only the */
/* second will leave the first untouched. To change only the */
/* first, use the form first, (see the routine break_args.. */
#define DLPI_ARGS "D:hM:m:p:r:s:W:w:"
while ((c= getopt(argc, argv, DLPI_ARGS)) != EOF) {
switch (c) {
case '?':
case 'h':
print_dlpi_usage();
exit(1);
case 'D':
/* set the dlpi device file name(s) */
break_args(optarg,arg1,arg2);
if (arg1[0])
strcpy(loc_dlpi_device,arg1);
if (arg2[0])
strcpy(rem_dlpi_device,arg2);
break;
case 'm':
/* set the send size */
send_size = atoi(optarg);
break;
case 'M':
/* set the recv size */
recv_size = atoi(optarg);
break;
case 'p':
/* set the local/remote ppa */
break_args(optarg,arg1,arg2);
if (arg1[0])
loc_ppa = atoi(arg1);
if (arg2[0])
rem_ppa = atoi(arg2);
break;
case 'r':
/* set the request/response sizes */
break_args(optarg,arg1,arg2);
if (arg1[0])
req_size = atoi(arg1);
if (arg2[0])
rsp_size = atoi(arg2);
break;
case 's':
/* set the 802.2 sap for the test */
dlpi_sap = atoi(optarg);
break;
case 'w':
/* set local window sizes */
break_args(optarg,arg1,arg2);
if (arg1[0])
lsw_size = atoi(arg1);
if (arg2[0])
lrw_size = atoi(arg2);
break;
case 'W':
/* set remote window sizes */
break_args(optarg,arg1,arg2);
if (arg1[0])
rsw_size = atoi(arg1);
if (arg2[0])
rrw_size = atoi(arg2);
break;
};
}
}
#endif /* WANT_DLPI */