Line data    Source code

       1             : /*
       2             :  * vr_dpdk_offloads.h -- dpdk callbacks for datapath flow offloads management
       3             :  *
       4             :  * Copyright 2018 Mellanox Technologies, Ltd
       5             :  */
       6             : #ifndef __VR_DPDK_OFFLOADS_H__
       7             : #define __VR_DPDK_OFFLOADS_H__
       8             : 
       9             : #include "vr_offloads.h"
      10             : #include "vr_dpdk.h"
      11             : 
      12             : int dpdk_offload_flow_destroy(struct vr_offload_flow *oflow);
      13             : 
      14             : int dpdk_offload_flow_create(struct vr_offload_flow *oflow);
      15             : 
      16             : void dpdk_offload_prepare(struct vr_packet *pkt, struct vr_forwarding_md *fmd);
      17             : 
      18             : static inline void
      19           0 : dpdk_offload_flow_burst_prefetch(struct rte_mbuf *pkts[VR_DPDK_RX_BURST_SZ],
      20             :                                  struct vr_offload_flow *oflows[VR_DPDK_RX_BURST_SZ],
      21             :                                  uint32_t nb_pkts)
      22             : {
      23           0 :     struct vr_offload_flow **oflow = &oflows[0];
      24             :     int i;
      25             : 
      26           0 :     for (i = 0; i < nb_pkts; i++, oflow++) {
      27           0 :         if (pkts[i]->ol_flags & PKT_RX_FDIR_ID) {
      28           0 :             *oflow = vr_offloads_flow_get(pkts[i]->hash.fdir.hi);
      29           0 :            if (*oflow)
      30           0 :                rte_prefetch0(*oflow);
      31             :        } else
      32           0 :            *oflow = NULL;
      33             :     }
      34           0 : }
      35             : 
      36             : static inline void
      37           0 : vr_dpdk_offloads_flow_prefetch(struct vr_offload_flow *oflow)
      38             : {
      39           0 :     rte_prefetch0(oflow->fe);
      40           0 :     rte_prefetch0((char *)oflow->fe + RTE_CACHE_LINE_SIZE);
      41           0 :     rte_prefetch0(oflow->nh);
      42           0 :     rte_prefetch0((char *)oflow->nh + RTE_CACHE_LINE_SIZE);
      43           0 : }
      44             : 
      45             : #endif /* __VR_DPDK_OFFLOADS_H__ */