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/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "spdk/stdinc.h"
#include "CUnit/Basic.h"
#include "spdk_internal/mock.h"
#include "env_dpdk/pci.c"
static void
pci_claim_test(struct spdk_pci_device *dev)
{
int rc = 0;
pid_t childPid;
int status, ret;
rc = spdk_pci_device_claim(dev);
CU_ASSERT(rc >= 0);
childPid = fork();
CU_ASSERT(childPid >= 0);
if (childPid == 0) {
ret = spdk_pci_device_claim(dev);
CU_ASSERT(ret == -1);
exit(0);
} else {
waitpid(childPid, &status, 0);
}
}
static struct spdk_pci_driver ut_pci_driver;
struct ut_pci_dev {
struct spdk_pci_device pci;
char config[16];
char bar[16];
bool attached;
};
static int
ut_map_bar(struct spdk_pci_device *dev, uint32_t bar,
void **mapped_addr, uint64_t *phys_addr, uint64_t *size)
{
struct ut_pci_dev *ut_dev = (struct ut_pci_dev *)dev;
/* just one bar */
if (bar > 0) {
return -1;
}
*mapped_addr = ut_dev->bar;
*phys_addr = 0;
*size = sizeof(ut_dev->bar);
return 0;
}
static int
ut_unmap_bar(struct spdk_pci_device *device, uint32_t bar, void *addr)
{
return 0;
}
static int
ut_cfg_read(struct spdk_pci_device *dev, void *value, uint32_t len, uint32_t offset)
{
struct ut_pci_dev *ut_dev = (struct ut_pci_dev *)dev;
if (len + offset >= sizeof(ut_dev->config)) {
return -1;
}
memcpy(value, (void *)((uintptr_t)ut_dev->config + offset), len);
return 0;
}
static int ut_cfg_write(struct spdk_pci_device *dev, void *value, uint32_t len, uint32_t offset)
{
struct ut_pci_dev *ut_dev = (struct ut_pci_dev *)dev;
if (len + offset >= sizeof(ut_dev->config)) {
return -1;
}
memcpy((void *)((uintptr_t)ut_dev->config + offset), value, len);
return 0;
}
static int
ut_enum_cb(void *ctx, struct spdk_pci_device *dev)
{
struct ut_pci_dev *ut_dev = (struct ut_pci_dev *)dev;
ut_dev->attached = true;
return 0;
}
static void
pci_hook_test(void)
{
struct ut_pci_dev ut_dev = {};
uint32_t value_32;
void *bar0_vaddr;
uint64_t bar0_paddr, bar0_size;
int rc;
ut_dev.pci.type = "custom";
ut_dev.pci.id.vendor_id = 0x4;
ut_dev.pci.id.device_id = 0x8;
/* Use add parse for initilization */
spdk_pci_addr_parse(&ut_dev.pci.addr, "10000:00:01.0");
CU_ASSERT(ut_dev.pci.addr.domain == 0x10000);
CU_ASSERT(ut_dev.pci.addr.bus == 0x0);
CU_ASSERT(ut_dev.pci.addr.dev == 0x1);
CU_ASSERT(ut_dev.pci.addr.func == 0x0);
ut_dev.pci.map_bar = ut_map_bar;
ut_dev.pci.unmap_bar = ut_unmap_bar;
ut_dev.pci.cfg_read = ut_cfg_read;
ut_dev.pci.cfg_write = ut_cfg_write;
/* hook the device into the PCI layer */
spdk_pci_hook_device(&ut_pci_driver, &ut_dev.pci);
/* try to attach a device with the matching driver and bdf */
rc = spdk_pci_device_attach(&ut_pci_driver, ut_enum_cb, NULL, &ut_dev.pci.addr);
CU_ASSERT(rc == 0);
CU_ASSERT(ut_dev.pci.internal.attached);
CU_ASSERT(ut_dev.attached);
/* check PCI config writes and reads */
value_32 = 0xDEADBEEF;
rc = spdk_pci_device_cfg_write32(&ut_dev.pci, value_32, 0);
CU_ASSERT(rc == 0);
value_32 = 0x0BADF00D;
rc = spdk_pci_device_cfg_write32(&ut_dev.pci, value_32, 4);
CU_ASSERT(rc == 0);
rc = spdk_pci_device_cfg_read32(&ut_dev.pci, &value_32, 0);
CU_ASSERT(rc == 0);
CU_ASSERT(value_32 == 0xDEADBEEF);
CU_ASSERT(memcmp(&value_32, &ut_dev.config[0], 4) == 0);
rc = spdk_pci_device_cfg_read32(&ut_dev.pci, &value_32, 4);
CU_ASSERT(rc == 0);
CU_ASSERT(value_32 == 0x0BADF00D);
CU_ASSERT(memcmp(&value_32, &ut_dev.config[4], 4) == 0);
/* out-of-bounds write */
rc = spdk_pci_device_cfg_read32(&ut_dev.pci, &value_32, sizeof(ut_dev.config));
CU_ASSERT(rc != 0);
/* map a bar */
rc = spdk_pci_device_map_bar(&ut_dev.pci, 0, &bar0_vaddr, &bar0_paddr, &bar0_size);
CU_ASSERT(rc == 0);
CU_ASSERT(bar0_vaddr == ut_dev.bar);
CU_ASSERT(bar0_size == sizeof(ut_dev.bar));
spdk_pci_device_unmap_bar(&ut_dev.pci, 0, bar0_vaddr);
/* map an inaccessible bar */
rc = spdk_pci_device_map_bar(&ut_dev.pci, 1, &bar0_vaddr, &bar0_paddr, &bar0_size);
CU_ASSERT(rc != 0);
/* test spdk_pci_device_claim() */
pci_claim_test(&ut_dev.pci);
spdk_pci_device_detach(&ut_dev.pci);
CU_ASSERT(!ut_dev.pci.internal.attached);
/* unhook the device */
spdk_pci_unhook_device(&ut_dev.pci);
/* try to attach the same device again */
rc = spdk_pci_device_attach(&ut_pci_driver, ut_enum_cb, NULL, &ut_dev.pci.addr);
CU_ASSERT(rc != 0);
}
int main(int argc, char **argv)
{
CU_pSuite suite = NULL;
unsigned int num_failures;
if (CU_initialize_registry() != CUE_SUCCESS) {
return CU_get_error();
}
suite = CU_add_suite("pci", NULL, NULL);
if (suite == NULL) {
CU_cleanup_registry();
return CU_get_error();
}
if (
CU_add_test(suite, "pci_hook", pci_hook_test) == NULL
) {
CU_cleanup_registry();
return CU_get_error();
}
CU_basic_set_mode(CU_BRM_VERBOSE);
CU_basic_run_tests();
num_failures = CU_get_number_of_failures();
CU_cleanup_registry();
return num_failures;
}
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