diff options
Diffstat (limited to 'platform/linux-generic/include/odp_packet_netmap.h')
| -rw-r--r-- | platform/linux-generic/include/odp_packet_netmap.h | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/platform/linux-generic/include/odp_packet_netmap.h b/platform/linux-generic/include/odp_packet_netmap.h index 0577dfe20..26a8da1eb 100644 --- a/platform/linux-generic/include/odp_packet_netmap.h +++ b/platform/linux-generic/include/odp_packet_netmap.h @@ -7,19 +7,55 @@ #ifndef ODP_PACKET_NETMAP_H #define ODP_PACKET_NETMAP_H +#include <odp/align.h> +#include <odp/debug.h> +#include <odp/packet_io.h> #include <odp/pool.h> +#include <odp/ticketlock.h> +#include <odp_align_internal.h> #include <linux/if_ether.h> +#include <net/if.h> + +#define NM_MAX_DESC 32 + +/** Ring for mapping pktin/pktout queues to netmap descriptors */ +struct netmap_ring_t { + unsigned first; /**< Index of first netmap descriptor */ + unsigned last; /**< Index of last netmap descriptor */ + unsigned num; /**< Number of netmap descriptors */ + /** Netmap metadata for the device */ + struct nm_desc *desc[NM_MAX_DESC]; + unsigned cur; /**< Index of current netmap descriptor */ + odp_ticketlock_t lock; /**< Queue lock */ +}; + +typedef union { + struct netmap_ring_t s; + uint8_t pad[ODP_CACHE_LINE_SIZE_ROUNDUP(sizeof(struct netmap_ring_t))]; +} netmap_ring_t ODP_ALIGNED_CACHE; /** Packet socket using netmap mmaped rings for both Rx and Tx */ typedef struct { odp_pool_t pool; /**< pool to alloc packets from */ size_t max_frame_len; /**< buf_size - sizeof(pkt_hdr) */ - struct nm_desc *rx_desc; /**< netmap meta-data for the device */ - struct nm_desc *tx_desc; /**< netmap meta-data for the device */ uint32_t if_flags; /**< interface flags */ + uint32_t mtu; /**< maximum transmission unit */ int sockfd; /**< control socket */ unsigned char if_mac[ETH_ALEN]; /**< eth mac address */ + char nm_name[IF_NAMESIZE + 7]; /**< netmap:<ifname> */ + odp_pktio_capability_t capa; /**< interface capabilities */ + unsigned cur_rx_queue; /**< current pktin queue */ + uint32_t num_rx_rings; /**< number of nm rx rings */ + uint32_t num_tx_rings; /**< number of nm tx rings */ + unsigned num_rx_desc_rings; /**< number of rx descriptor rings */ + unsigned num_tx_desc_rings; /**< number of tx descriptor rings */ + odp_bool_t lockless_rx; /**< no locking for rx */ + odp_bool_t lockless_tx; /**< no locking for tx */ + /** mapping of pktin queues to netmap rx descriptors */ + netmap_ring_t rx_desc_ring[PKTIO_MAX_QUEUES]; + /** mapping of pktout queues to netmap tx descriptors */ + netmap_ring_t tx_desc_ring[PKTIO_MAX_QUEUES]; } pkt_netmap_t; #endif |