Imported Upstream version 16.04
[deb_dpdk.git] / drivers / net / bonding / rte_eth_bond_args.c
diff --git a/drivers/net/bonding/rte_eth_bond_args.c b/drivers/net/bonding/rte_eth_bond_args.c
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+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   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 Intel Corporation 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_devargs.h>
+#include <rte_kvargs.h>
+
+#include <cmdline_parse.h>
+#include <cmdline_parse_etheraddr.h>
+
+#include "rte_eth_bond.h"
+#include "rte_eth_bond_private.h"
+
+const char *pmd_bond_init_valid_arguments[] = {
+       PMD_BOND_SLAVE_PORT_KVARG,
+       PMD_BOND_PRIMARY_SLAVE_KVARG,
+       PMD_BOND_MODE_KVARG,
+       PMD_BOND_XMIT_POLICY_KVARG,
+       PMD_BOND_SOCKET_ID_KVARG,
+       PMD_BOND_MAC_ADDR_KVARG,
+
+       NULL
+};
+
+static inline int
+find_port_id_by_pci_addr(const struct rte_pci_addr *pci_addr)
+{
+       struct rte_pci_addr *eth_pci_addr;
+       unsigned i;
+
+       for (i = 0; i < rte_eth_dev_count(); i++) {
+
+               if (rte_eth_devices[i].pci_dev == NULL)
+                       continue;
+
+               eth_pci_addr = &(rte_eth_devices[i].pci_dev->addr);
+
+               if (pci_addr->bus == eth_pci_addr->bus &&
+                       pci_addr->devid == eth_pci_addr->devid &&
+                       pci_addr->domain == eth_pci_addr->domain &&
+                       pci_addr->function == eth_pci_addr->function)
+                       return i;
+       }
+       return -1;
+}
+
+static inline int
+find_port_id_by_dev_name(const char *name)
+{
+       unsigned i;
+
+       for (i = 0; i < rte_eth_dev_count(); i++) {
+               if (rte_eth_devices[i].data == NULL)
+                       continue;
+
+               if (strcmp(rte_eth_devices[i].data->name, name) == 0)
+                       return i;
+       }
+       return -1;
+}
+
+/**
+ * Parses a port identifier string to a port id by pci address, then by name,
+ * and finally port id.
+ */
+static inline int
+parse_port_id(const char *port_str)
+{
+       struct rte_pci_addr dev_addr;
+       int port_id;
+
+       /* try parsing as pci address, physical devices */
+       if (eal_parse_pci_DomBDF(port_str, &dev_addr) == 0) {
+               port_id = find_port_id_by_pci_addr(&dev_addr);
+               if (port_id < 0)
+                       return -1;
+       } else {
+               /* try parsing as device name, virtual devices */
+               port_id = find_port_id_by_dev_name(port_str);
+               if (port_id < 0) {
+                       char *end;
+                       errno = 0;
+
+                       /* try parsing as port id */
+                       port_id = strtol(port_str, &end, 10);
+                       if (*end != 0 || errno != 0)
+                               return -1;
+               }
+       }
+
+       if (port_id < 0 || port_id > RTE_MAX_ETHPORTS) {
+               RTE_BOND_LOG(ERR, "Slave port specified (%s) outside expected range",
+                               port_str);
+               return -1;
+       }
+       return port_id;
+}
+
+int
+bond_ethdev_parse_slave_port_kvarg(const char *key __rte_unused,
+               const char *value, void *extra_args)
+{
+       struct bond_ethdev_slave_ports *slave_ports;
+
+       if (value == NULL || extra_args == NULL)
+               return -1;
+
+       slave_ports = extra_args;
+
+       if (strcmp(key, PMD_BOND_SLAVE_PORT_KVARG) == 0) {
+               int port_id = parse_port_id(value);
+               if (port_id < 0) {
+                       RTE_BOND_LOG(ERR, "Invalid slave port value (%s) specified", value);
+                       return -1;
+               } else
+                       slave_ports->slaves[slave_ports->slave_count++] =
+                                       (uint8_t)port_id;
+       }
+       return 0;
+}
+
+int
+bond_ethdev_parse_slave_mode_kvarg(const char *key __rte_unused,
+               const char *value, void *extra_args)
+{
+       uint8_t *mode;
+       char *endptr;
+
+       if (value == NULL || extra_args == NULL)
+               return -1;
+
+       mode = extra_args;
+
+       errno = 0;
+       *mode = strtol(value, &endptr, 10);
+       if (*endptr != 0 || errno != 0)
+               return -1;
+
+       /* validate mode value */
+       switch (*mode) {
+       case BONDING_MODE_ROUND_ROBIN:
+       case BONDING_MODE_ACTIVE_BACKUP:
+       case BONDING_MODE_BALANCE:
+       case BONDING_MODE_BROADCAST:
+       case BONDING_MODE_8023AD:
+       case BONDING_MODE_TLB:
+       case BONDING_MODE_ALB:
+               return 0;
+       default:
+               RTE_BOND_LOG(ERR, "Invalid slave mode value (%s) specified", value);
+               return -1;
+       }
+}
+
+int
+bond_ethdev_parse_socket_id_kvarg(const char *key __rte_unused,
+               const char *value, void *extra_args)
+{
+       int socket_id;
+       char *endptr;
+
+       if (value == NULL || extra_args == NULL)
+               return -1;
+
+       errno = 0;
+       socket_id = (uint8_t)strtol(value, &endptr, 10);
+       if (*endptr != 0 || errno != 0)
+               return -1;
+
+       /* validate mode value */
+       if (socket_id >= 0 && socket_id < number_of_sockets()) {
+               *(uint8_t *)extra_args = (uint8_t)socket_id;
+               return 0;
+       }
+       return -1;
+}
+
+int
+bond_ethdev_parse_primary_slave_port_id_kvarg(const char *key __rte_unused,
+               const char *value, void *extra_args)
+{
+       int primary_slave_port_id;
+
+       if (value == NULL || extra_args == NULL)
+               return -1;
+
+       primary_slave_port_id = parse_port_id(value);
+       if (primary_slave_port_id < 0)
+               return -1;
+
+       *(uint8_t *)extra_args = (uint8_t)primary_slave_port_id;
+
+       return 0;
+}
+
+int
+bond_ethdev_parse_balance_xmit_policy_kvarg(const char *key __rte_unused,
+               const char *value, void *extra_args)
+{
+       uint8_t *xmit_policy;
+
+       if (value == NULL || extra_args == NULL)
+               return -1;
+
+       xmit_policy = extra_args;
+
+       if (strcmp(PMD_BOND_XMIT_POLICY_LAYER2_KVARG, value) == 0)
+               *xmit_policy = BALANCE_XMIT_POLICY_LAYER2;
+       else if (strcmp(PMD_BOND_XMIT_POLICY_LAYER23_KVARG, value) == 0)
+               *xmit_policy = BALANCE_XMIT_POLICY_LAYER23;
+       else if (strcmp(PMD_BOND_XMIT_POLICY_LAYER34_KVARG, value) == 0)
+               *xmit_policy = BALANCE_XMIT_POLICY_LAYER34;
+       else
+               return -1;
+
+       return 0;
+}
+
+int
+bond_ethdev_parse_bond_mac_addr_kvarg(const char *key __rte_unused,
+               const char *value, void *extra_args)
+{
+       if (value == NULL || extra_args == NULL)
+               return -1;
+
+       /* Parse MAC */
+       return cmdline_parse_etheraddr(NULL, value, extra_args,
+               sizeof(struct ether_addr));
+}
+
+int
+bond_ethdev_parse_time_ms_kvarg(const char *key __rte_unused,
+               const char *value, void *extra_args)
+{
+       uint32_t time_ms;
+       char *endptr;
+
+       if (value == NULL || extra_args == NULL)
+               return -1;
+
+       errno = 0;
+       time_ms = (uint32_t)strtol(value, &endptr, 10);
+       if (*endptr != 0 || errno != 0)
+               return -1;
+
+       *(uint32_t *)extra_args = time_ms;
+
+       return 0;
+}