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_ethdev_portid_get(const char *name, uint16_t *port_id)
45 DEBUG("Null pointer is specified\n");
49 RTE_ETH_FOREACH_DEV(pid) {
50 if (!strncmp(name, rte_eth_devices[pid].device->name, len)) {
59 fs_bus_init(struct rte_eth_dev *dev)
61 struct sub_device *sdev;
62 struct rte_devargs *da;
67 FOREACH_SUBDEV(sdev, i, dev) {
68 if (sdev->state != DEV_PARSED)
71 if (fs_ethdev_portid_get(da->name, &pid) != 0) {
72 ret = rte_eal_hotplug_add(da->bus->name,
76 ERROR("sub_device %d probe failed %s%s%s", i,
78 rte_errno ? strerror(rte_errno) : "",
79 rte_errno ? ")" : "");
82 if (fs_ethdev_portid_get(da->name, &pid) != 0) {
83 ERROR("sub_device %d init went wrong", i);
87 char devstr[DEVARGS_MAXLEN] = "";
88 struct rte_devargs *probed_da =
89 rte_eth_devices[pid].device->devargs;
91 /* Take control of device probed by EAL options. */
93 memset(da, 0, sizeof(*da));
94 if (probed_da != NULL)
95 snprintf(devstr, sizeof(devstr), "%s,%s",
96 probed_da->name, probed_da->args);
98 snprintf(devstr, sizeof(devstr), "%s",
99 rte_eth_devices[pid].device->name);
100 ret = rte_eal_devargs_parse(devstr, da);
102 ERROR("Probed devargs parsing failed with code"
106 INFO("Taking control of a probed sub device"
107 " %d named %s", i, da->name);
109 ret = rte_eth_dev_owner_set(pid, &PRIV(dev)->my_owner);
111 INFO("sub_device %d owner set failed (%s),"
112 " will try again later", i, strerror(ret));
114 } else if (strncmp(rte_eth_devices[pid].device->name, da->name,
115 strlen(da->name)) != 0) {
117 * The device probably was removed and its port id was
118 * reallocated before ownership set.
120 rte_eth_dev_owner_unset(pid, PRIV(dev)->my_owner.id);
121 INFO("sub_device %d was probably removed before taking"
122 " ownership, will try again later", i);
125 ETH(sdev) = &rte_eth_devices[pid];
128 sdev->dev = ETH(sdev)->device;
129 ETH(sdev)->state = RTE_ETH_DEV_DEFERRED;
130 sdev->state = DEV_PROBED;
136 failsafe_eal_init(struct rte_eth_dev *dev)
140 ret = fs_bus_init(dev);
143 if (PRIV(dev)->state < DEV_PROBED)
144 PRIV(dev)->state = DEV_PROBED;
145 fs_switch_dev(dev, NULL);
150 fs_bus_uninit(struct rte_eth_dev *dev)
152 struct sub_device *sdev = NULL;
157 FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_PROBED) {
158 sdev_ret = rte_eal_hotplug_remove(sdev->bus->name,
161 ERROR("Failed to remove requested device %s (err: %d)",
162 sdev->dev->name, sdev_ret);
165 sdev->state = DEV_PROBED - 1;
171 failsafe_eal_uninit(struct rte_eth_dev *dev)
175 ret = fs_bus_uninit(dev);
176 PRIV(dev)->state = DEV_PROBED - 1;