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Diffstat (limited to 'drivers/bus/fslmc/fslmc_bus.c')
-rw-r--r--drivers/bus/fslmc/fslmc_bus.c141
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/bus/fslmc/fslmc_bus.c b/drivers/bus/fslmc/fslmc_bus.c
new file mode 100644
index 00000000..b24642dd
--- /dev/null
+++ b/drivers/bus/fslmc/fslmc_bus.c
@@ -0,0 +1,141 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright (c) 2016 NXP. 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 NXP 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 <string.h>
+#include <dirent.h>
+
+#include <rte_log.h>
+#include <rte_bus.h>
+#include <rte_eal_memconfig.h>
+#include <rte_malloc.h>
+#include <rte_devargs.h>
+#include <rte_memcpy.h>
+#include <rte_ethdev.h>
+
+#include "rte_fslmc.h"
+#include "fslmc_vfio.h"
+
+#define FSLMC_BUS_LOG(level, fmt, args...) \
+ RTE_LOG(level, EAL, "%s(): " fmt "\n", __func__, ##args)
+
+struct rte_fslmc_bus rte_fslmc_bus;
+
+static int
+rte_fslmc_scan(void)
+{
+ int ret;
+
+ ret = fslmc_vfio_setup_group();
+ if (ret) {
+ FSLMC_BUS_LOG(ERR, "fslmc: Unable to setup VFIO");
+ return ret;
+ }
+
+ ret = fslmc_vfio_process_group();
+ if (ret) {
+ FSLMC_BUS_LOG(ERR, "fslmc: Unable to setup devices");
+ return -1;
+ }
+
+ RTE_LOG(INFO, EAL, "fslmc: Bus scan completed\n");
+ return 0;
+}
+
+static int
+rte_fslmc_match(struct rte_dpaa2_driver *dpaa2_drv,
+ struct rte_dpaa2_device *dpaa2_dev)
+{
+ if (dpaa2_drv->drv_type == dpaa2_dev->dev_type)
+ return 0;
+
+ return 1;
+}
+
+static int
+rte_fslmc_probe(void)
+{
+ int ret = 0;
+ struct rte_dpaa2_device *dev;
+ struct rte_dpaa2_driver *drv;
+
+ TAILQ_FOREACH(dev, &rte_fslmc_bus.device_list, next) {
+ TAILQ_FOREACH(drv, &rte_fslmc_bus.driver_list, next) {
+ ret = rte_fslmc_match(drv, dev);
+ if (ret)
+ continue;
+
+ if (!drv->probe)
+ continue;
+
+ ret = drv->probe(drv, dev);
+ if (ret)
+ FSLMC_BUS_LOG(ERR, "Unable to probe.\n");
+ break;
+ }
+ }
+ return ret;
+}
+
+/*register a fslmc bus based dpaa2 driver */
+void
+rte_fslmc_driver_register(struct rte_dpaa2_driver *driver)
+{
+ RTE_VERIFY(driver);
+
+ TAILQ_INSERT_TAIL(&rte_fslmc_bus.driver_list, driver, next);
+ /* Update Bus references */
+ driver->fslmc_bus = &rte_fslmc_bus;
+}
+
+/*un-register a fslmc bus based dpaa2 driver */
+void
+rte_fslmc_driver_unregister(struct rte_dpaa2_driver *driver)
+{
+ struct rte_fslmc_bus *fslmc_bus;
+
+ fslmc_bus = driver->fslmc_bus;
+
+ TAILQ_REMOVE(&fslmc_bus->driver_list, driver, next);
+ /* Update Bus references */
+ driver->fslmc_bus = NULL;
+}
+
+struct rte_fslmc_bus rte_fslmc_bus = {
+ .bus = {
+ .scan = rte_fslmc_scan,
+ .probe = rte_fslmc_probe,
+ },
+ .device_list = TAILQ_HEAD_INITIALIZER(rte_fslmc_bus.device_list),
+ .driver_list = TAILQ_HEAD_INITIALIZER(rte_fslmc_bus.driver_list),
+};
+
+RTE_REGISTER_BUS(FSLMC_BUS_NAME, rte_fslmc_bus.bus);