aboutsummaryrefslogtreecommitdiffstats
path: root/src/plugins/dpdk/device/common.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/plugins/dpdk/device/common.c')
-rw-r--r--src/plugins/dpdk/device/common.c315
1 files changed, 315 insertions, 0 deletions
diff --git a/src/plugins/dpdk/device/common.c b/src/plugins/dpdk/device/common.c
new file mode 100644
index 00000000..aedc3f52
--- /dev/null
+++ b/src/plugins/dpdk/device/common.c
@@ -0,0 +1,315 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/vnet.h>
+#include <vppinfra/vec.h>
+#include <vppinfra/format.h>
+#include <vlib/unix/cj.h>
+#include <assert.h>
+
+#include <vnet/ip/ip.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/ethernet/arp_packet.h>
+#include <dpdk/device/dpdk.h>
+
+#include <dpdk/device/dpdk_priv.h>
+#include <vppinfra/error.h>
+
+void
+dpdk_device_error (dpdk_device_t * xd, char *str, int rv)
+{
+ xd->errors = clib_error_return (xd->errors, "%s[port:%d, errno:%d]: %s",
+ str, xd->device_index, rv,
+ rte_strerror (rv));
+}
+
+void
+dpdk_device_setup (dpdk_device_t * xd)
+{
+ dpdk_main_t *dm = &dpdk_main;
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, xd->vlib_sw_if_index);
+ int rv;
+ int j;
+
+ ASSERT (vlib_get_thread_index () == 0);
+
+ clib_error_free (xd->errors);
+ sw->flags &= ~VNET_SW_INTERFACE_FLAG_ERROR;
+
+ if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
+ {
+ vnet_hw_interface_set_flags (dm->vnet_main, xd->hw_if_index, 0);
+ dpdk_device_stop (xd);
+ }
+
+ rv = rte_eth_dev_configure (xd->device_index, xd->rx_q_used,
+ xd->tx_q_used, &xd->port_conf);
+
+ if (rv < 0)
+ {
+ dpdk_device_error (xd, "rte_eth_dev_configure", rv);
+ goto error;
+ }
+
+ /* Set up one TX-queue per worker thread */
+ for (j = 0; j < xd->tx_q_used; j++)
+ {
+ rv = rte_eth_tx_queue_setup (xd->device_index, j, xd->nb_tx_desc,
+ xd->cpu_socket, &xd->tx_conf);
+
+ /* retry with any other CPU socket */
+ if (rv < 0)
+ rv = rte_eth_tx_queue_setup (xd->device_index, j, xd->nb_tx_desc,
+ SOCKET_ID_ANY, &xd->tx_conf);
+ if (rv < 0)
+ dpdk_device_error (xd, "rte_eth_tx_queue_setup", rv);
+ }
+
+ for (j = 0; j < xd->rx_q_used; j++)
+ {
+ uword tidx = vnet_get_device_input_thread_index (dm->vnet_main,
+ xd->hw_if_index, j);
+ unsigned lcore = vlib_worker_threads[tidx].lcore_id;
+ u16 socket_id = rte_lcore_to_socket_id (lcore);
+
+ rv = rte_eth_rx_queue_setup (xd->device_index, j, xd->nb_rx_desc,
+ xd->cpu_socket, 0,
+ dm->pktmbuf_pools[socket_id]);
+
+ /* retry with any other CPU socket */
+ if (rv < 0)
+ rv = rte_eth_rx_queue_setup (xd->device_index, j, xd->nb_rx_desc,
+ SOCKET_ID_ANY, 0,
+ dm->pktmbuf_pools[socket_id]);
+
+ if (rv < 0)
+ dpdk_device_error (xd, "rte_eth_rx_queue_setup", rv);
+ }
+
+ if (vec_len (xd->errors))
+ goto error;
+
+ if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
+ dpdk_device_start (xd);
+
+ if (vec_len (xd->errors))
+ goto error;
+
+ return;
+
+error:
+ xd->flags |= DPDK_DEVICE_FLAG_PMD_INIT_FAIL;
+ sw->flags |= VNET_SW_INTERFACE_FLAG_ERROR;
+}
+
+void
+dpdk_device_start (dpdk_device_t * xd)
+{
+ int rv;
+
+ if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL)
+ return;
+
+ rv = rte_eth_dev_start (xd->device_index);
+
+ if (rv)
+ {
+ dpdk_device_error (xd, "rte_eth_dev_start", rv);
+ return;
+ }
+
+ if (xd->default_mac_address)
+ rv =
+ rte_eth_dev_default_mac_addr_set (xd->device_index,
+ (struct ether_addr *)
+ xd->default_mac_address);
+
+ if (rv)
+ dpdk_device_error (xd, "rte_eth_dev_default_mac_addr_set", rv);
+
+ if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
+ rte_eth_promiscuous_enable (xd->device_index);
+ else
+ rte_eth_promiscuous_disable (xd->device_index);
+
+ rte_eth_allmulticast_enable (xd->device_index);
+
+ if (xd->pmd == VNET_DPDK_PMD_BOND)
+ {
+ u8 slink[16];
+ int nlink = rte_eth_bond_slaves_get (xd->device_index, slink, 16);
+ while (nlink >= 1)
+ {
+ u8 dpdk_port = slink[--nlink];
+ rte_eth_allmulticast_enable (dpdk_port);
+ }
+ }
+}
+
+void
+dpdk_device_stop (dpdk_device_t * xd)
+{
+ if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL)
+ return;
+
+ rte_eth_allmulticast_disable (xd->device_index);
+ rte_eth_dev_stop (xd->device_index);
+
+ /* For bonded interface, stop slave links */
+ if (xd->pmd == VNET_DPDK_PMD_BOND)
+ {
+ u8 slink[16];
+ int nlink = rte_eth_bond_slaves_get (xd->device_index, slink, 16);
+ while (nlink >= 1)
+ {
+ u8 dpdk_port = slink[--nlink];
+ rte_eth_dev_stop (dpdk_port);
+ }
+ }
+}
+
+/* Even type for send_garp_na_process */
+enum
+{
+ SEND_GARP_NA = 1,
+} dpdk_send_garp_na_process_event_t;
+
+static vlib_node_registration_t send_garp_na_proc_node;
+
+static uword
+send_garp_na_process (vlib_main_t * vm,
+ vlib_node_runtime_t * rt, vlib_frame_t * f)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ uword event_type, *event_data = 0;
+
+ while (1)
+ {
+ u32 i;
+ uword dpdk_port;
+ vlib_process_wait_for_event (vm);
+ event_type = vlib_process_get_events (vm, &event_data);
+ ASSERT (event_type == SEND_GARP_NA);
+ for (i = 0; i < vec_len (event_data); i++)
+ {
+ dpdk_port = event_data[i];
+ if (i < 5) /* wait 0.2 sec for link to settle, max total 1 sec */
+ vlib_process_suspend (vm, 0.2);
+ dpdk_device_t *xd = &dpdk_main.devices[dpdk_port];
+ u32 hw_if_index = xd->hw_if_index;
+ vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
+ dpdk_update_link_state (xd, vlib_time_now (vm));
+ send_ip4_garp (vm, hi);
+ send_ip6_na (vm, hi);
+ }
+ vec_reset_length (event_data);
+ }
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (send_garp_na_proc_node, static) = {
+ .function = send_garp_na_process,
+ .type = VLIB_NODE_TYPE_PROCESS,
+ .name = "send-garp-na-process",
+};
+/* *INDENT-ON* */
+
+void vl_api_force_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
+
+static void
+garp_na_proc_callback (uword * dpdk_port)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ ASSERT (vlib_get_thread_index () == 0);
+ vlib_process_signal_event
+ (vm, send_garp_na_proc_node.index, SEND_GARP_NA, *dpdk_port);
+}
+
+always_inline int
+dpdk_port_state_callback_inline (uint8_t port_id,
+ enum rte_eth_event_type type, void *param)
+{
+ struct rte_eth_link link;
+ dpdk_device_t *xd = &dpdk_main.devices[port_id];
+
+ RTE_SET_USED (param);
+ if (type != RTE_ETH_EVENT_INTR_LSC)
+ {
+ clib_warning ("Unknown event %d received for port %d", type, port_id);
+ return -1;
+ }
+
+ rte_eth_link_get_nowait (port_id, &link);
+ u8 link_up = link.link_status;
+
+ if (xd->flags & DPDK_DEVICE_FLAG_BOND_SLAVE)
+ {
+ uword bd_port = xd->bond_port;
+ int bd_mode = rte_eth_bond_mode_get (bd_port);
+#if 0
+ clib_warning ("Port %d state to %s, "
+ "slave of port %d BondEthernet%d in mode %d",
+ port_id, (link_up) ? "UP" : "DOWN",
+ bd_port, xd->port_id, bd_mode);
+#endif
+ if (bd_mode == BONDING_MODE_ACTIVE_BACKUP)
+ {
+ vl_api_force_rpc_call_main_thread
+ (garp_na_proc_callback, (u8 *) & bd_port, sizeof (uword));
+ }
+ xd->flags |= link_up ?
+ DPDK_DEVICE_FLAG_BOND_SLAVE_UP : ~DPDK_DEVICE_FLAG_BOND_SLAVE_UP;
+ }
+ else /* Should not happen as callback not setup for "normal" links */
+ {
+ if (link_up)
+ clib_warning ("Port %d Link Up - speed %u Mbps - %s",
+ port_id, (unsigned) link.link_speed,
+ (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
+ "full-duplex" : "half-duplex");
+ else
+ clib_warning ("Port %d Link Down\n\n", port_id);
+ }
+
+ return 0;
+}
+
+#if DPDK_VOID_CALLBACK
+void
+dpdk_port_state_callback (uint8_t port_id,
+ enum rte_eth_event_type type, void *param)
+{
+ dpdk_port_state_callback_inline (port_id, type, param);
+}
+
+#else
+int
+dpdk_port_state_callback (uint8_t port_id,
+ enum rte_eth_event_type type,
+ void *param,
+ void *ret_param __attribute__ ((unused)))
+{
+ return dpdk_port_state_callback_inline (port_id, type, param);
+}
+#endif
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */