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-rw-r--r--tools/pci/pcitest.c252
1 files changed, 252 insertions, 0 deletions
diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
new file mode 100644
index 000000000..0a1344c45
--- /dev/null
+++ b/tools/pci/pcitest.c
@@ -0,0 +1,252 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/**
+ * Userspace PCI Endpoint Test Module
+ *
+ * Copyright (C) 2017 Texas Instruments
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#include <linux/pcitest.h>
+
+#define BILLION 1E9
+
+static char *result[] = { "NOT OKAY", "OKAY" };
+static char *irq[] = { "LEGACY", "MSI", "MSI-X" };
+
+struct pci_test {
+ char *device;
+ char barnum;
+ bool legacyirq;
+ unsigned int msinum;
+ unsigned int msixnum;
+ int irqtype;
+ bool set_irqtype;
+ bool get_irqtype;
+ bool clear_irq;
+ bool read;
+ bool write;
+ bool copy;
+ unsigned long size;
+ bool use_dma;
+};
+
+static int run_test(struct pci_test *test)
+{
+ struct pci_endpoint_test_xfer_param param;
+ int ret = -EINVAL;
+ int fd;
+
+ fd = open(test->device, O_RDWR);
+ if (fd < 0) {
+ perror("can't open PCI Endpoint Test device");
+ return -ENODEV;
+ }
+
+ 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->set_irqtype) {
+ ret = ioctl(fd, PCITEST_SET_IRQTYPE, test->irqtype);
+ fprintf(stdout, "SET IRQ TYPE TO %s:\t\t", irq[test->irqtype]);
+ if (ret < 0)
+ fprintf(stdout, "FAILED\n");
+ else
+ fprintf(stdout, "%s\n", result[ret]);
+ }
+
+ if (test->get_irqtype) {
+ ret = ioctl(fd, PCITEST_GET_IRQTYPE);
+ fprintf(stdout, "GET IRQ TYPE:\t\t");
+ if (ret < 0)
+ fprintf(stdout, "FAILED\n");
+ else
+ fprintf(stdout, "%s\n", irq[ret]);
+ }
+
+ if (test->clear_irq) {
+ ret = ioctl(fd, PCITEST_CLEAR_IRQ);
+ fprintf(stdout, "CLEAR IRQ:\t\t");
+ if (ret < 0)
+ fprintf(stdout, "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->msixnum > 0 && test->msixnum <= 2048) {
+ ret = ioctl(fd, PCITEST_MSIX, test->msixnum);
+ fprintf(stdout, "MSI-X%d:\t\t", test->msixnum);
+ if (ret < 0)
+ fprintf(stdout, "TEST FAILED\n");
+ else
+ fprintf(stdout, "%s\n", result[ret]);
+ }
+
+ if (test->write) {
+ param.size = test->size;
+ if (test->use_dma)
+ param.flags = PCITEST_FLAGS_USE_DMA;
+ ret = ioctl(fd, PCITEST_WRITE, &param);
+ 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) {
+ param.size = test->size;
+ if (test->use_dma)
+ param.flags = PCITEST_FLAGS_USE_DMA;
+ ret = ioctl(fd, PCITEST_READ, &param);
+ 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) {
+ param.size = test->size;
+ if (test->use_dma)
+ param.flags = PCITEST_FLAGS_USE_DMA;
+ ret = ioctl(fd, PCITEST_COPY, &param);
+ 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);
+ close(fd);
+ return (ret < 0) ? ret : 1 - ret; /* return 0 if test succeeded */
+}
+
+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:x:i:deIlhrwcs:")) != 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 'x':
+ test->msixnum = atoi(optarg);
+ if (test->msixnum < 1 || test->msixnum > 2048)
+ goto usage;
+ continue;
+ case 'i':
+ test->irqtype = atoi(optarg);
+ if (test->irqtype < 0 || test->irqtype > 2)
+ goto usage;
+ test->set_irqtype = true;
+ continue;
+ case 'I':
+ test->get_irqtype = true;
+ continue;
+ case 'r':
+ test->read = true;
+ continue;
+ case 'w':
+ test->write = true;
+ continue;
+ case 'c':
+ test->copy = true;
+ continue;
+ case 'e':
+ test->clear_irq = true;
+ continue;
+ case 's':
+ test->size = strtoul(optarg, NULL, 0);
+ continue;
+ case 'd':
+ test->use_dma = true;
+ continue;
+ 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-x <msix num> \tMSI-X test (msix number between 1..2048)\n"
+ "\t-i <irq type> \tSet IRQ type (0 - Legacy, 1 - MSI, 2 - MSI-X)\n"
+ "\t-e Clear IRQ\n"
+ "\t-I Get current IRQ type configured\n"
+ "\t-d Use DMA\n"
+ "\t-l Legacy IRQ test\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"
+ "\t-h Print this help message\n",
+ argv[0]);
+ return -EINVAL;
+ }
+
+ return run_test(test);
+}