4 * Copyright 2017 6WIND S.A.
5 * Copyright 2017 Mellanox.
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34 #include <rte_malloc.h>
36 #include "failsafe_private.h"
39 fs_bus_init(struct rte_eth_dev *dev)
41 struct sub_device *sdev;
42 struct rte_devargs *da;
46 FOREACH_SUBDEV(sdev, i, dev) {
47 if (sdev->state != DEV_PARSED)
50 ret = rte_eal_hotplug_add(da->bus->name,
54 ERROR("sub_device %d probe failed %s%s%s", i,
56 rte_errno ? strerror(rte_errno) : "",
57 rte_errno ? ")" : "");
60 ETH(sdev) = rte_eth_dev_allocated(da->name);
61 if (ETH(sdev) == NULL) {
62 ERROR("sub_device %d init went wrong", i);
65 sdev->dev = ETH(sdev)->device;
66 ETH(sdev)->state = RTE_ETH_DEV_DEFERRED;
67 sdev->state = DEV_PROBED;
73 failsafe_eal_init(struct rte_eth_dev *dev)
75 struct sub_device *sdev;
79 ret = fs_bus_init(dev);
83 * We only update TX_SUBDEV if we are not started.
84 * If a sub_device is emitting, we will switch the TX_SUBDEV to the
85 * preferred port only upon starting it, so that the switch is smoother.
87 if (PREFERRED_SUBDEV(dev)->state >= DEV_PROBED) {
88 if (TX_SUBDEV(dev) != PREFERRED_SUBDEV(dev) &&
89 (TX_SUBDEV(dev) == NULL ||
90 (TX_SUBDEV(dev) && TX_SUBDEV(dev)->state < DEV_STARTED))) {
91 DEBUG("Switching tx_dev to preferred sub_device");
92 PRIV(dev)->subs_tx = 0;
95 if ((TX_SUBDEV(dev) && TX_SUBDEV(dev)->state < DEV_PROBED) ||
96 TX_SUBDEV(dev) == NULL) {
97 /* Using first probed device */
98 FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_PROBED) {
99 DEBUG("Switching tx_dev to sub_device %d",
101 PRIV(dev)->subs_tx = i;
110 fs_bus_uninit(struct rte_eth_dev *dev)
112 struct sub_device *sdev = NULL;
116 FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_PROBED) {
117 ret = rte_eal_hotplug_remove(sdev->bus->name,
120 ERROR("Failed to remove requested device %s",
124 sdev->state = DEV_PROBED - 1;
130 failsafe_eal_uninit(struct rte_eth_dev *dev)
134 ret = fs_bus_uninit(dev);