forked from luck/tmp_suning_uos_patched
tools: PCI: Add a userspace tool to test PCI endpoint
Add a userspace tool to invoke the ioctls exposed by the PCI endpoint test driver to perform various PCI tests. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Kishon Vijay Abraham I
Bjorn Helgaas
parent
0cfb512e4a
commit
3f2ed81348
186
tools/pci/pcitest.c
Normal file
186
tools/pci/pcitest.c
Normal file
|
|
@ -0,0 +1,186 @@
|
|||
/**
|
||||
* Userspace PCI Endpoint Test Module
|
||||
*
|
||||
* Copyright (C) 2017 Texas Instruments
|
||||
* Author: Kishon Vijay Abraham I <kishon@ti.com>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 of
|
||||
* the License as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <time.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include <linux/pcitest.h>
|
||||
|
||||
#define BILLION 1E9
|
||||
|
||||
static char *result[] = { "NOT OKAY", "OKAY" };
|
||||
|
||||
struct pci_test {
|
||||
char *device;
|
||||
char barnum;
|
||||
bool legacyirq;
|
||||
unsigned int msinum;
|
||||
bool read;
|
||||
bool write;
|
||||
bool copy;
|
||||
unsigned long size;
|
||||
};
|
||||
|
||||
static int run_test(struct pci_test *test)
|
||||
{
|
||||
long ret;
|
||||
int fd;
|
||||
struct timespec start, end;
|
||||
double time;
|
||||
|
||||
fd = open(test->device, O_RDWR);
|
||||
if (fd < 0) {
|
||||
perror("can't open PCI Endpoint Test device");
|
||||
return fd;
|
||||
}
|
||||
|
||||
if (test->barnum >= 0 && test->barnum <= 5) {
|
||||
ret = ioctl(fd, PCITEST_BAR, test->barnum);
|
||||
fprintf(stdout, "BAR%d:\t\t", test->barnum);
|
||||
if (ret < 0)
|
||||
fprintf(stdout, "TEST FAILED\n");
|
||||
else
|
||||
fprintf(stdout, "%s\n", result[ret]);
|
||||
}
|
||||
|
||||
if (test->legacyirq) {
|
||||
ret = ioctl(fd, PCITEST_LEGACY_IRQ, 0);
|
||||
fprintf(stdout, "LEGACY IRQ:\t");
|
||||
if (ret < 0)
|
||||
fprintf(stdout, "TEST FAILED\n");
|
||||
else
|
||||
fprintf(stdout, "%s\n", result[ret]);
|
||||
}
|
||||
|
||||
if (test->msinum > 0 && test->msinum <= 32) {
|
||||
ret = ioctl(fd, PCITEST_MSI, test->msinum);
|
||||
fprintf(stdout, "MSI%d:\t\t", test->msinum);
|
||||
if (ret < 0)
|
||||
fprintf(stdout, "TEST FAILED\n");
|
||||
else
|
||||
fprintf(stdout, "%s\n", result[ret]);
|
||||
}
|
||||
|
||||
if (test->write) {
|
||||
ret = ioctl(fd, PCITEST_WRITE, test->size);
|
||||
fprintf(stdout, "WRITE (%7ld bytes):\t\t", test->size);
|
||||
if (ret < 0)
|
||||
fprintf(stdout, "TEST FAILED\n");
|
||||
else
|
||||
fprintf(stdout, "%s\n", result[ret]);
|
||||
}
|
||||
|
||||
if (test->read) {
|
||||
ret = ioctl(fd, PCITEST_READ, test->size);
|
||||
fprintf(stdout, "READ (%7ld bytes):\t\t", test->size);
|
||||
if (ret < 0)
|
||||
fprintf(stdout, "TEST FAILED\n");
|
||||
else
|
||||
fprintf(stdout, "%s\n", result[ret]);
|
||||
}
|
||||
|
||||
if (test->copy) {
|
||||
ret = ioctl(fd, PCITEST_COPY, test->size);
|
||||
fprintf(stdout, "COPY (%7ld bytes):\t\t", test->size);
|
||||
if (ret < 0)
|
||||
fprintf(stdout, "TEST FAILED\n");
|
||||
else
|
||||
fprintf(stdout, "%s\n", result[ret]);
|
||||
}
|
||||
|
||||
fflush(stdout);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
int c;
|
||||
struct pci_test *test;
|
||||
|
||||
test = calloc(1, sizeof(*test));
|
||||
if (!test) {
|
||||
perror("Fail to allocate memory for pci_test\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* since '0' is a valid BAR number, initialize it to -1 */
|
||||
test->barnum = -1;
|
||||
|
||||
/* set default size as 100KB */
|
||||
test->size = 0x19000;
|
||||
|
||||
/* set default endpoint device */
|
||||
test->device = "/dev/pci-endpoint-test.0";
|
||||
|
||||
while ((c = getopt(argc, argv, "D:b:m:lrwcs:")) != EOF)
|
||||
switch (c) {
|
||||
case 'D':
|
||||
test->device = optarg;
|
||||
continue;
|
||||
case 'b':
|
||||
test->barnum = atoi(optarg);
|
||||
if (test->barnum < 0 || test->barnum > 5)
|
||||
goto usage;
|
||||
continue;
|
||||
case 'l':
|
||||
test->legacyirq = true;
|
||||
continue;
|
||||
case 'm':
|
||||
test->msinum = atoi(optarg);
|
||||
if (test->msinum < 1 || test->msinum > 32)
|
||||
goto usage;
|
||||
continue;
|
||||
case 'r':
|
||||
test->read = true;
|
||||
continue;
|
||||
case 'w':
|
||||
test->write = true;
|
||||
continue;
|
||||
case 'c':
|
||||
test->copy = true;
|
||||
continue;
|
||||
case 's':
|
||||
test->size = strtoul(optarg, NULL, 0);
|
||||
continue;
|
||||
case '?':
|
||||
case 'h':
|
||||
default:
|
||||
usage:
|
||||
fprintf(stderr,
|
||||
"usage: %s [options]\n"
|
||||
"Options:\n"
|
||||
"\t-D <dev> PCI endpoint test device {default: /dev/pci-endpoint-test.0}\n"
|
||||
"\t-b <bar num> BAR test (bar number between 0..5)\n"
|
||||
"\t-m <msi num> MSI test (msi number between 1..32)\n"
|
||||
"\t-r Read buffer test\n"
|
||||
"\t-w Write buffer test\n"
|
||||
"\t-c Copy buffer test\n"
|
||||
"\t-s <size> Size of buffer {default: 100KB}\n",
|
||||
argv[0]);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
run_test(test);
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user