tools: PCI: Add 'e' to clear IRQ

Add a new command line option 'e' to invoke "PCITEST_CLEAR_IRQ"
ioctl. This can be used to clear the irqs set using the 'i' option.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
index 5e3b636..0a1344c 100644 (file)
--- a/tools/pci/pcitest.c
+++ b/tools/pci/pcitest.c
@@ -30,6 +30,7 @@ struct pci_test {
        int             irqtype;
        bool            set_irqtype;
        bool            get_irqtype;
+       bool            clear_irq;
        bool            read;
        bool            write;
        bool            copy;
@@ -76,6 +77,15 @@ static int run_test(struct pci_test *test)
                        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");
@@ -164,7 +174,7 @@ int main(int argc, char **argv)
        /* set default endpoint device */
        test->device = "/dev/pci-endpoint-test.0";
 
-       while ((c = getopt(argc, argv, "D:b:m:x:i:dIlhrwcs:")) != EOF)
+       while ((c = getopt(argc, argv, "D:b:m:x:i:deIlhrwcs:")) != EOF)
        switch (c) {
        case 'D':
                test->device = optarg;
@@ -205,6 +215,9 @@ int main(int argc, char **argv)
        case 'c':
                test->copy = true;
                continue;
+       case 'e':
+               test->clear_irq = true;
+               continue;
        case 's':
                test->size = strtoul(optarg, NULL, 0);
                continue;
@@ -222,6 +235,7 @@ usage:
                        "\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"