#include "mlx5_autoconf.h"
#include "mlx5_defs.h"
+/**
+ * Retrieve integer value from environment variable.
+ *
+ * @param[in] name
+ * Environment variable name.
+ *
+ * @return
+ * Integer value, 0 if the variable is not set.
+ */
+int
+mlx5_getenv_int(const char *name)
+{
+ const char *val = getenv(name);
+
+ if (val == NULL)
+ return 0;
+ return atoi(val);
+}
+
/**
* DPDK callback to close the device.
*
static void
mlx5_dev_close(struct rte_eth_dev *dev)
{
- struct priv *priv = dev->data->dev_private;
+ struct priv *priv = mlx5_get_priv(dev);
void *tmp;
unsigned int i;
int err = 0;
struct ibv_context *attr_ctx = NULL;
struct ibv_device_attr device_attr;
- unsigned int vf;
+ unsigned int sriov;
+ unsigned int mps;
int idx;
int i;
(pci_dev->addr.devid != pci_addr.devid) ||
(pci_dev->addr.function != pci_addr.function))
continue;
- vf = ((pci_dev->id.device_id ==
+ sriov = ((pci_dev->id.device_id ==
PCI_DEVICE_ID_MELLANOX_CONNECTX4VF) ||
(pci_dev->id.device_id ==
PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF));
- INFO("PCI information matches, using device \"%s\" (VF: %s)",
- list[i]->name, (vf ? "true" : "false"));
+ /* Multi-packet send is only supported by ConnectX-4 Lx PF. */
+ mps = (pci_dev->id.device_id ==
+ PCI_DEVICE_ID_MELLANOX_CONNECTX4LX);
+ INFO("PCI information matches, using device \"%s\""
+ " (SR-IOV: %s, MPS: %s)",
+ list[i]->name,
+ sriov ? "true" : "false",
+ mps ? "true" : "false");
attr_ctx = ibv_open_device(list[i]);
err = errno;
break;
struct ibv_exp_device_attr exp_device_attr;
#endif /* HAVE_EXP_QUERY_DEVICE */
struct ether_addr mac;
+ uint16_t num_vfs = 0;
#ifdef HAVE_EXP_QUERY_DEVICE
exp_device_attr.comp_mask =
#ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
IBV_EXP_DEVICE_ATTR_VLAN_OFFLOADS |
#endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
+#ifdef HAVE_VERBS_RX_END_PADDING
+ IBV_EXP_DEVICE_ATTR_RX_PAD_END_ALIGN |
+#endif /* HAVE_VERBS_RX_END_PADDING */
0;
#endif /* HAVE_EXP_QUERY_DEVICE */
DEBUG("VLAN stripping is %ssupported",
(priv->hw_vlan_strip ? "" : "not "));
+#ifdef HAVE_VERBS_FCS
+ priv->hw_fcs_strip = !!(exp_device_attr.exp_device_cap_flags &
+ IBV_EXP_DEVICE_SCATTER_FCS);
+#endif /* HAVE_VERBS_FCS */
+ DEBUG("FCS stripping configuration is %ssupported",
+ (priv->hw_fcs_strip ? "" : "not "));
+
+#ifdef HAVE_VERBS_RX_END_PADDING
+ priv->hw_padding = !!exp_device_attr.rx_pad_end_addr_align;
+#endif /* HAVE_VERBS_RX_END_PADDING */
+ DEBUG("hardware RX end alignment padding is %ssupported",
+ (priv->hw_padding ? "" : "not "));
+
#else /* HAVE_EXP_QUERY_DEVICE */
priv->ind_table_max_size = RSS_INDIRECTION_TABLE_SIZE;
#endif /* HAVE_EXP_QUERY_DEVICE */
- priv->vf = vf;
+ priv_get_num_vfs(priv, &num_vfs);
+ priv->sriov = (num_vfs || sriov);
+ priv->mps = mps;
/* Allocate and register default RSS hash keys. */
priv->rss_conf = rte_calloc(__func__, hash_rxq_init_n,
sizeof((*priv->rss_conf)[0]), 0);
goto port_error;
}
- eth_dev->data->dev_private = priv;
- eth_dev->pci_dev = pci_dev;
+ /* Secondary processes have to use local storage for their
+ * private data as well as a copy of eth_dev->data, but this
+ * pointer must not be modified before burst functions are
+ * actually called. */
+ if (mlx5_is_secondary()) {
+ struct mlx5_secondary_data *sd =
+ &mlx5_secondary_data[eth_dev->data->port_id];
+ sd->primary_priv = eth_dev->data->dev_private;
+ if (sd->primary_priv == NULL) {
+ ERROR("no private data for port %u",
+ eth_dev->data->port_id);
+ err = EINVAL;
+ goto port_error;
+ }
+ sd->shared_dev_data = eth_dev->data;
+ rte_spinlock_init(&sd->lock);
+ memcpy(sd->data.name, sd->shared_dev_data->name,
+ sizeof(sd->data.name));
+ sd->data.dev_private = priv;
+ sd->data.rx_mbuf_alloc_failed = 0;
+ sd->data.mtu = ETHER_MTU;
+ sd->data.port_id = sd->shared_dev_data->port_id;
+ sd->data.mac_addrs = priv->mac;
+ eth_dev->tx_pkt_burst = mlx5_tx_burst_secondary_setup;
+ eth_dev->rx_pkt_burst = mlx5_rx_burst_secondary_setup;
+ } else {
+ eth_dev->data->dev_private = priv;
+ eth_dev->data->rx_mbuf_alloc_failed = 0;
+ eth_dev->data->mtu = ETHER_MTU;
+ eth_dev->data->mac_addrs = priv->mac;
+ }
+ eth_dev->pci_dev = pci_dev;
rte_eth_copy_pci_info(eth_dev, pci_dev);
-
eth_dev->driver = &mlx5_driver;
- eth_dev->data->rx_mbuf_alloc_failed = 0;
- eth_dev->data->mtu = ETHER_MTU;
-
priv->dev = eth_dev;
eth_dev->dev_ops = &mlx5_dev_ops;
- eth_dev->data->mac_addrs = priv->mac;
+
TAILQ_INIT(ð_dev->link_intr_cbs);
/* Bring Ethernet device up. */