diff options
Diffstat (limited to 'app/test/test_pci.c')
| -rw-r--r-- | app/test/test_pci.c | 164 |
1 files changed, 138 insertions, 26 deletions
diff --git a/app/test/test_pci.c b/app/test/test_pci.c index 0ed357e6..354a0ad9 100644 --- a/app/test/test_pci.c +++ b/app/test/test_pci.c @@ -43,6 +43,7 @@ #include <rte_devargs.h> #include "test.h" +#include "resource.h" /* Generic maximum number of drivers to have room to allocate all drivers */ #define NUM_MAX_DRIVERS 256 @@ -66,21 +67,14 @@ static int my_driver_init(struct rte_pci_driver *dr, /* IXGBE NICS */ struct rte_pci_id my_driver_id[] = { - -#define RTE_PCI_DEV_ID_DECL_IXGBE(vend, dev) {RTE_PCI_DEVICE(vend, dev)}, -#include <rte_pci_dev_ids.h> - -{ .vendor_id = 0, /* sentinel */ }, + {RTE_PCI_DEVICE(0x0001, 0x1234)}, + { .vendor_id = 0, /* sentinel */ }, }; struct rte_pci_id my_driver_id2[] = { - -/* IGB & EM NICS */ -#define RTE_PCI_DEV_ID_DECL_EM(vend, dev) {RTE_PCI_DEVICE(vend, dev)}, -#define RTE_PCI_DEV_ID_DECL_IGB(vend, dev) {RTE_PCI_DEVICE(vend, dev)}, -#include <rte_pci_dev_ids.h> - -{ .vendor_id = 0, /* sentinel */ }, + {RTE_PCI_DEVICE(0x0001, 0x4444)}, + {RTE_PCI_DEVICE(0x0002, 0xabcd)}, + { .vendor_id = 0, /* sentinel */ }, }; struct rte_pci_driver my_driver = { @@ -144,23 +138,102 @@ static void free_devargs_list(void) } } -int -test_pci(void) +/* backup real devices & drivers (not used for testing) */ +struct pci_driver_list real_pci_driver_list = + TAILQ_HEAD_INITIALIZER(real_pci_driver_list); +struct pci_device_list real_pci_device_list = + TAILQ_HEAD_INITIALIZER(real_pci_device_list); + +REGISTER_LINKED_RESOURCE(test_pci_sysfs); + +static int +test_pci_setup(void) { - struct rte_devargs_list save_devargs_list; - struct rte_pci_driver *dr = NULL; - struct rte_pci_driver *save_pci_driver_list[NUM_MAX_DRIVERS]; - unsigned i, num_drivers = 0; + struct rte_pci_device *dev; + struct rte_pci_driver *dr; + const struct resource *r; + int ret; - printf("Dump all devices\n"); - rte_eal_pci_dump(stdout); + r = resource_find("test_pci_sysfs"); + TEST_ASSERT_NOT_NULL(r, "missing resource test_pci_sysfs"); + + ret = resource_untar(r); + TEST_ASSERT_SUCCESS(ret, "failed to untar %s", r->name); + + ret = setenv("SYSFS_PCI_DEVICES", "test_pci_sysfs/bus/pci/devices", 1); + TEST_ASSERT_SUCCESS(ret, "failed to setenv"); - /* Unregister all previous drivers */ - TAILQ_FOREACH(dr, &pci_driver_list, next) { + /* Unregister original devices & drivers lists */ + while (!TAILQ_EMPTY(&pci_driver_list)) { + dr = TAILQ_FIRST(&pci_driver_list); rte_eal_pci_unregister(dr); - save_pci_driver_list[num_drivers++] = dr; + TAILQ_INSERT_TAIL(&real_pci_driver_list, dr, next); } + while (!TAILQ_EMPTY(&pci_device_list)) { + dev = TAILQ_FIRST(&pci_device_list); + TAILQ_REMOVE(&pci_device_list, dev, next); + TAILQ_INSERT_TAIL(&real_pci_device_list, dev, next); + } + + ret = rte_eal_pci_scan(); + TEST_ASSERT_SUCCESS(ret, "failed to scan PCI bus"); + rte_eal_pci_dump(stdout); + + return 0; +} + +static int +test_pci_cleanup(void) +{ + struct rte_pci_device *dev; + struct rte_pci_driver *dr; + const struct resource *r; + int ret; + + unsetenv("SYSFS_PCI_DEVICES"); + + r = resource_find("test_pci_sysfs"); + TEST_ASSERT_NOT_NULL(r, "missing resource test_pci_sysfs"); + + ret = resource_rm_by_tar(r); + TEST_ASSERT_SUCCESS(ret, "Failed to delete resource %s", r->name); + + /* + * FIXME: there is no API in DPDK to free a rte_pci_device so we + * cannot free the devices in the right way. Let's assume that we + * don't care for tests. + */ + while (!TAILQ_EMPTY(&pci_device_list)) { + dev = TAILQ_FIRST(&pci_device_list); + TAILQ_REMOVE(&pci_device_list, dev, next); + } + + /* Restore original devices & drivers lists */ + while (!TAILQ_EMPTY(&real_pci_driver_list)) { + dr = TAILQ_FIRST(&real_pci_driver_list); + TAILQ_REMOVE(&real_pci_driver_list, dr, next); + rte_eal_pci_register(dr); + } + + while (!TAILQ_EMPTY(&real_pci_device_list)) { + dev = TAILQ_FIRST(&real_pci_device_list); + TAILQ_REMOVE(&real_pci_device_list, dev, next); + TAILQ_INSERT_TAIL(&pci_device_list, dev, next); + } + + return 0; +} + +static int +test_pci_blacklist(void) +{ + struct rte_devargs_list save_devargs_list; + + printf("Dump all devices\n"); + TEST_ASSERT(TAILQ_EMPTY(&pci_driver_list), + "pci_driver_list not empty"); + rte_eal_pci_register(&my_driver); rte_eal_pci_register(&my_driver2); @@ -196,9 +269,48 @@ test_pci(void) rte_eal_pci_unregister(&my_driver); rte_eal_pci_unregister(&my_driver2); - /* Restore original driver list */ - for (i = 0; i < num_drivers; i++) - rte_eal_pci_register(save_pci_driver_list[i]); + return 0; +} + +static int test_pci_sysfs(void) +{ + const char *orig; + const char *newpath; + int ret; + + orig = pci_get_sysfs_path(); + ret = setenv("SYSFS_PCI_DEVICES", "My Documents", 1); + TEST_ASSERT_SUCCESS(ret, "Failed setenv to My Documents"); + + newpath = pci_get_sysfs_path(); + TEST_ASSERT(!strcmp(newpath, "My Documents"), + "pci_get_sysfs_path() should return 'My Documents' " + "but gives %s", newpath); + + ret = setenv("SYSFS_PCI_DEVICES", orig, 1); + TEST_ASSERT_SUCCESS(ret, "Failed setenv back to '%s'", orig); + + newpath = pci_get_sysfs_path(); + TEST_ASSERT(!strcmp(orig, newpath), + "pci_get_sysfs_path returned unexpected path: " + "%s (expected: %s)", newpath, orig); + return 0; +} + +int +test_pci(void) +{ + if (test_pci_sysfs()) + return -1; + + if (test_pci_setup()) + return -1; + + if (test_pci_blacklist()) + return -1; + + if (test_pci_cleanup()) + return -1; return 0; } |