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authorLuca Boccassi <luca.boccassi@gmail.com>2017-08-16 18:42:05 +0100
committerLuca Boccassi <luca.boccassi@gmail.com>2017-08-16 18:46:04 +0100
commitf239aed5e674965691846e8ce3f187dd47523689 (patch)
treea153a3125c6e183c73871a8ecaa4b285fed5fbd5 /drivers/net/failsafe/failsafe_eal.c
parentbf7567fd2a5b0b28ab724046143c24561d38d015 (diff)
New upstream version 17.08
Change-Id: I288b50990f52646089d6b1f3aaa6ba2f091a51d7 Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'drivers/net/failsafe/failsafe_eal.c')
-rw-r--r--drivers/net/failsafe/failsafe_eal.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/net/failsafe/failsafe_eal.c b/drivers/net/failsafe/failsafe_eal.c
new file mode 100644
index 00000000..c8f4318e
--- /dev/null
+++ b/drivers/net/failsafe/failsafe_eal.c
@@ -0,0 +1,118 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright 2017 6WIND S.A.
+ * Copyright 2017 Mellanox.
+ *
+ * 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 6WIND S.A. 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 <rte_malloc.h>
+
+#include "failsafe_private.h"
+
+static int
+fs_bus_init(struct rte_eth_dev *dev)
+{
+ struct sub_device *sdev;
+ struct rte_devargs *da;
+ uint8_t i;
+ int ret;
+
+ FOREACH_SUBDEV(sdev, i, dev) {
+ if (sdev->state != DEV_PARSED)
+ continue;
+ da = &sdev->devargs;
+ ret = rte_eal_hotplug_add(da->bus->name,
+ da->name,
+ da->args);
+ if (ret) {
+ ERROR("sub_device %d probe failed %s%s%s", i,
+ rte_errno ? "(" : "",
+ rte_errno ? strerror(rte_errno) : "",
+ rte_errno ? ")" : "");
+ continue;
+ }
+ ETH(sdev) = rte_eth_dev_allocated(da->name);
+ if (ETH(sdev) == NULL) {
+ ERROR("sub_device %d init went wrong", i);
+ return -ENODEV;
+ }
+ SUB_ID(sdev) = i;
+ sdev->fs_dev = dev;
+ sdev->dev = ETH(sdev)->device;
+ ETH(sdev)->state = RTE_ETH_DEV_DEFERRED;
+ sdev->state = DEV_PROBED;
+ }
+ return 0;
+}
+
+int
+failsafe_eal_init(struct rte_eth_dev *dev)
+{
+ int ret;
+
+ ret = fs_bus_init(dev);
+ if (ret)
+ return ret;
+ if (PRIV(dev)->state < DEV_PROBED)
+ PRIV(dev)->state = DEV_PROBED;
+ fs_switch_dev(dev, NULL);
+ return 0;
+}
+
+static int
+fs_bus_uninit(struct rte_eth_dev *dev)
+{
+ struct sub_device *sdev = NULL;
+ uint8_t i;
+ int ret;
+
+ FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_PROBED) {
+ ret = rte_eal_hotplug_remove(sdev->bus->name,
+ sdev->dev->name);
+ if (ret) {
+ ERROR("Failed to remove requested device %s",
+ sdev->dev->name);
+ continue;
+ }
+ sdev->state = DEV_PROBED - 1;
+ }
+ return 0;
+}
+
+int
+failsafe_eal_uninit(struct rte_eth_dev *dev)
+{
+ int ret;
+
+ ret = fs_bus_uninit(dev);
+ if (ret)
+ return ret;
+ PRIV(dev)->state = DEV_PROBED - 1;
+ return 0;
+}