net/bonding: fix adding itself as its slave
[dpdk.git] / drivers / net / bonding / rte_eth_bond_api.c
index 57ef2f0..eb8d15d 100644 (file)
@@ -6,14 +6,14 @@
 
 #include <rte_mbuf.h>
 #include <rte_malloc.h>
-#include <rte_ethdev_driver.h>
+#include <ethdev_driver.h>
 #include <rte_tcp.h>
 #include <rte_bus_vdev.h>
 #include <rte_kvargs.h>
 
 #include "rte_eth_bond.h"
-#include "rte_eth_bond_private.h"
-#include "rte_eth_bond_8023ad_private.h"
+#include "eth_bond_private.h"
+#include "eth_bond_8023ad_private.h"
 
 int
 check_for_bonded_ethdev(const struct rte_eth_dev *eth_dev)
@@ -56,19 +56,25 @@ check_for_master_bonded_ethdev(const struct rte_eth_dev *eth_dev)
 }
 
 int
-valid_slave_port_id(uint16_t port_id, uint8_t mode)
+valid_slave_port_id(struct bond_dev_private *internals, uint16_t slave_port_id)
 {
-       RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -1);
+       RTE_ETH_VALID_PORTID_OR_ERR_RET(slave_port_id, -1);
 
-       /* Verify that port_id refers to a non bonded port */
-       if (check_for_bonded_ethdev(&rte_eth_devices[port_id]) == 0 &&
-                       mode == BONDING_MODE_8023AD) {
+       /* Verify that slave_port_id refers to a non bonded port */
+       if (check_for_bonded_ethdev(&rte_eth_devices[slave_port_id]) == 0 &&
+                       internals->mode == BONDING_MODE_8023AD) {
                RTE_BOND_LOG(ERR, "Cannot add slave to bonded device in 802.3ad"
                                " mode as slave is also a bonded device, only "
                                "physical devices can be support in this mode.");
                return -1;
        }
 
+       if (internals->port_id == slave_port_id) {
+               RTE_BOND_LOG(ERR,
+                       "Cannot add the bonded device itself as its slave.");
+               return -1;
+       }
+
        return 0;
 }
 
@@ -76,7 +82,7 @@ void
 activate_slave(struct rte_eth_dev *eth_dev, uint16_t port_id)
 {
        struct bond_dev_private *internals = eth_dev->data->dev_private;
-       uint8_t active_count = internals->active_slave_count;
+       uint16_t active_count = internals->active_slave_count;
 
        if (internals->mode == BONDING_MODE_8023AD)
                bond_mode_8023ad_activate_slave(eth_dev, port_id);
@@ -161,7 +167,7 @@ rte_eth_bond_create(const char *name, uint8_t mode, uint8_t socket_id)
 
        ret = rte_vdev_init(name, devargs);
        if (ret)
-               return -ENOMEM;
+               return ret;
 
        ret = rte_eth_dev_get_port_by_name(name, &port_id);
        RTE_ASSERT(!ret);
@@ -237,7 +243,12 @@ slave_rte_flow_prepare(uint16_t slave_id, struct bond_dev_private *internals)
        uint16_t slave_port_id = internals->slaves[slave_id].port_id;
 
        if (internals->flow_isolated_valid != 0) {
-               rte_eth_dev_stop(slave_port_id);
+               if (rte_eth_dev_stop(slave_port_id) != 0) {
+                       RTE_BOND_LOG(ERR, "Failed to stop device on port %u",
+                                    slave_port_id);
+                       return -1;
+               }
+
                if (rte_flow_isolate(slave_port_id, internals->flow_isolated,
                    &ferror)) {
                        RTE_BOND_LOG(ERR, "rte_flow_isolate failed for slave"
@@ -446,11 +457,12 @@ __eth_bond_slave_add_lock_free(uint16_t bonded_port_id, uint16_t slave_port_id)
        struct bond_dev_private *internals;
        struct rte_eth_link link_props;
        struct rte_eth_dev_info dev_info;
+       int ret;
 
        bonded_eth_dev = &rte_eth_devices[bonded_port_id];
        internals = bonded_eth_dev->data->dev_private;
 
-       if (valid_slave_port_id(slave_port_id, internals->mode) != 0)
+       if (valid_slave_port_id(internals, slave_port_id) != 0)
                return -1;
 
        slave_eth_dev = &rte_eth_devices[slave_port_id];
@@ -459,7 +471,14 @@ __eth_bond_slave_add_lock_free(uint16_t bonded_port_id, uint16_t slave_port_id)
                return -1;
        }
 
-       rte_eth_dev_info_get(slave_port_id, &dev_info);
+       ret = rte_eth_dev_info_get(slave_port_id, &dev_info);
+       if (ret != 0) {
+               RTE_BOND_LOG(ERR,
+                       "%s: Error during getting device (port %u) info: %s\n",
+                       __func__, slave_port_id, strerror(-ret));
+
+               return ret;
+       }
        if (dev_info.max_rx_pktlen < internals->max_rx_pktlen) {
                RTE_BOND_LOG(ERR, "Slave (port %u) max_rx_pktlen too small",
                             slave_port_id);
@@ -543,9 +562,6 @@ __eth_bond_slave_add_lock_free(uint16_t bonded_port_id, uint16_t slave_port_id)
                }
        }
 
-       /* Add slave details to bonded device */
-       slave_eth_dev->data->dev_flags |= RTE_ETH_DEV_BONDED_SLAVE;
-
        /* Update all slave devices MACs */
        mac_address_slaves_update(bonded_eth_dev);
 
@@ -557,7 +573,18 @@ __eth_bond_slave_add_lock_free(uint16_t bonded_port_id, uint16_t slave_port_id)
        /* If bonded device is started then we can add the slave to our active
         * slave array */
        if (bonded_eth_dev->data->dev_started) {
-               rte_eth_link_get_nowait(slave_port_id, &link_props);
+               ret = rte_eth_link_get_nowait(slave_port_id, &link_props);
+               if (ret < 0) {
+                       rte_eth_dev_callback_unregister(slave_port_id,
+                                       RTE_ETH_EVENT_INTR_LSC,
+                                       bond_ethdev_lsc_event_callback,
+                                       &bonded_eth_dev->data->port_id);
+                       internals->slave_count--;
+                       RTE_BOND_LOG(ERR,
+                               "Slave (port %u) link get failed: %s\n",
+                               slave_port_id, rte_strerror(-ret));
+                       return -1;
+               }
 
                 if (link_props.link_status == ETH_LINK_UP) {
                        if (internals->active_slave_count == 0 &&
@@ -567,6 +594,9 @@ __eth_bond_slave_add_lock_free(uint16_t bonded_port_id, uint16_t slave_port_id)
                }
        }
 
+       /* Add slave details to bonded device */
+       slave_eth_dev->data->dev_flags |= RTE_ETH_DEV_BONDED_SLAVE;
+
        slave_vlan_filter_set(bonded_port_id, slave_port_id);
 
        return 0;
@@ -581,13 +611,15 @@ rte_eth_bond_slave_add(uint16_t bonded_port_id, uint16_t slave_port_id)
 
        int retval;
 
-       /* Verify that port id's are valid bonded and slave ports */
        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;
 
        bonded_eth_dev = &rte_eth_devices[bonded_port_id];
        internals = bonded_eth_dev->data->dev_private;
 
+       if (valid_slave_port_id(internals, slave_port_id) != 0)
+               return -1;
+
        rte_spinlock_lock(&internals->lock);
 
        retval = __eth_bond_slave_add_lock_free(bonded_port_id, slave_port_id);
@@ -611,7 +643,7 @@ __eth_bond_slave_remove_lock_free(uint16_t bonded_port_id,
        bonded_eth_dev = &rte_eth_devices[bonded_port_id];
        internals = bonded_eth_dev->data->dev_private;
 
-       if (valid_slave_port_id(slave_port_id, internals->mode) < 0)
+       if (valid_slave_port_id(internals, slave_port_id) < 0)
                return -1;
 
        /* first remove from active slave list */
@@ -673,6 +705,7 @@ __eth_bond_slave_remove_lock_free(uint16_t bonded_port_id,
                        internals->current_primary_port = internals->slaves[0].port_id;
                else
                        internals->primary_port = 0;
+               mac_address_slaves_update(bonded_eth_dev);
        }
 
        if (internals->active_slave_count < 1) {
@@ -758,7 +791,7 @@ rte_eth_bond_primary_set(uint16_t bonded_port_id, uint16_t slave_port_id)
 
        internals = rte_eth_devices[bonded_port_id].data->dev_private;
 
-       if (valid_slave_port_id(slave_port_id, internals->mode) != 0)
+       if (valid_slave_port_id(internals, slave_port_id) != 0)
                return -1;
 
        internals->user_defined_primary_port = 1;
@@ -790,7 +823,7 @@ rte_eth_bond_slaves_get(uint16_t bonded_port_id, uint16_t slaves[],
                        uint16_t len)
 {
        struct bond_dev_private *internals;
-       uint8_t i;
+       uint16_t i;
 
        if (valid_bonded_port_id(bonded_port_id) != 0)
                return -1;
@@ -834,7 +867,7 @@ rte_eth_bond_active_slaves_get(uint16_t bonded_port_id, uint16_t slaves[],
 
 int
 rte_eth_bond_mac_address_set(uint16_t bonded_port_id,
-               struct ether_addr *mac_addr)
+               struct rte_ether_addr *mac_addr)
 {
        struct rte_eth_dev *bonded_eth_dev;
        struct bond_dev_private *internals;