event/cnxk: support vectorized Rx event fast path
authorPavan Nikhilesh <pbhagavatula@marvell.com>
Wed, 14 Jul 2021 09:02:06 +0000 (14:32 +0530)
committerJerin Jacob <jerinj@marvell.com>
Fri, 16 Jul 2021 12:16:45 +0000 (14:16 +0200)
Add Rx event vector fastpath to convert HW defined metadata into
rte_mbuf and rte_event_vector.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
drivers/event/cnxk/cn10k_worker.h
drivers/net/cnxk/cn10k_rx.h
drivers/net/cnxk/cn10k_rx_vec.c
drivers/net/cnxk/cn10k_rx_vec_mseg.c

index 3c90c85..7a48a6b 100644 (file)
@@ -5,6 +5,8 @@
 #ifndef __CN10K_WORKER_H__
 #define __CN10K_WORKER_H__
 
+#include <rte_vect.h>
+
 #include "cnxk_ethdev.h"
 #include "cnxk_eventdev.h"
 #include "cnxk_worker.h"
@@ -101,6 +103,49 @@ cn10k_wqe_to_mbuf(uint64_t wqe, const uint64_t mbuf, uint8_t port_id,
                              mbuf_init | ((uint64_t)port_id) << 48, flags);
 }
 
+static __rte_always_inline void
+cn10k_process_vwqe(uintptr_t vwqe, uint16_t port_id, const uint32_t flags,
+                  void *lookup_mem, void *tstamp)
+{
+       uint64_t mbuf_init = 0x100010000ULL | RTE_PKTMBUF_HEADROOM |
+                            (flags & NIX_RX_OFFLOAD_TSTAMP_F ? 8 : 0);
+       struct rte_event_vector *vec;
+       uint16_t nb_mbufs, non_vec;
+       uint64_t **wqe;
+
+       mbuf_init |= ((uint64_t)port_id) << 48;
+       vec = (struct rte_event_vector *)vwqe;
+       wqe = vec->u64s;
+
+       nb_mbufs = RTE_ALIGN_FLOOR(vec->nb_elem, NIX_DESCS_PER_LOOP);
+       nb_mbufs = cn10k_nix_recv_pkts_vector(&mbuf_init, vec->mbufs, nb_mbufs,
+                                             flags | NIX_RX_VWQE_F, lookup_mem,
+                                             tstamp);
+       wqe += nb_mbufs;
+       non_vec = vec->nb_elem - nb_mbufs;
+
+       while (non_vec) {
+               struct nix_cqe_hdr_s *cqe = (struct nix_cqe_hdr_s *)wqe[0];
+               struct rte_mbuf *mbuf;
+               uint64_t tstamp_ptr;
+
+               mbuf = (struct rte_mbuf *)((char *)cqe -
+                                          sizeof(struct rte_mbuf));
+               cn10k_nix_cqe_to_mbuf(cqe, cqe->tag, mbuf, lookup_mem,
+                                     mbuf_init, flags);
+               /* Extracting tstamp, if PTP enabled*/
+               tstamp_ptr = *(uint64_t *)(((struct nix_wqe_hdr_s *)cqe) +
+                                          CNXK_SSO_WQE_SG_PTR);
+               cnxk_nix_mbuf_to_tstamp((struct rte_mbuf *)mbuf, tstamp,
+                                       flags & NIX_RX_OFFLOAD_TSTAMP_F,
+                                       flags & NIX_RX_MULTI_SEG_F,
+                                       (uint64_t *)tstamp_ptr);
+               wqe[0] = (uint64_t *)mbuf;
+               non_vec--;
+               wqe++;
+       }
+}
+
 static __rte_always_inline uint16_t
 cn10k_sso_hws_get_work(struct cn10k_sso_hws *ws, struct rte_event *ev,
                       const uint32_t flags, void *lookup_mem)
@@ -152,6 +197,17 @@ cn10k_sso_hws_get_work(struct cn10k_sso_hws *ws, struct rte_event *ev,
                                                flags & NIX_RX_MULTI_SEG_F,
                                                (uint64_t *)tstamp_ptr);
                        gw.u64[1] = mbuf;
+               } else if (CNXK_EVENT_TYPE_FROM_TAG(gw.u64[0]) ==
+                          RTE_EVENT_TYPE_ETHDEV_VECTOR) {
+                       uint8_t port = CNXK_SUB_EVENT_FROM_TAG(gw.u64[0]);
+                       __uint128_t vwqe_hdr = *(__uint128_t *)gw.u64[1];
+
+                       vwqe_hdr = ((vwqe_hdr >> 64) & 0xFFF) | BIT_ULL(31) |
+                                  ((vwqe_hdr & 0xFFFF) << 48) |
+                                  ((uint64_t)port << 32);
+                       *(uint64_t *)gw.u64[1] = (uint64_t)vwqe_hdr;
+                       cn10k_process_vwqe(gw.u64[1], port, flags, lookup_mem,
+                                          ws->tstamp);
                }
        }
 
index d9572b1..4c5288b 100644 (file)
@@ -21,6 +21,7 @@
  * Defining it from backwards to denote its been
  * not used as offload flags to pick function
  */
+#define NIX_RX_VWQE_F     BIT(14)
 #define NIX_RX_MULTI_SEG_F BIT(15)
 
 #define CNXK_NIX_CQ_ENTRY_SZ 128
 #define CQE_CAST(x)         ((struct nix_cqe_hdr_s *)(x))
 #define CQE_SZ(x)           ((x) * CNXK_NIX_CQ_ENTRY_SZ)
 
+#define CQE_PTR_OFF(b, i, o, f)                                                \
+       (((f) & NIX_RX_VWQE_F) ?                                               \
+                      (uint64_t *)(((uintptr_t)((uint64_t *)(b))[i]) + (o)) : \
+                      (uint64_t *)(((uintptr_t)(b)) + CQE_SZ(i) + (o)))
+
 union mbuf_initializer {
        struct {
                uint16_t data_off;
@@ -317,61 +323,87 @@ nix_qinq_update(const uint64_t w2, uint64_t ol_flags, struct rte_mbuf *mbuf)
 }
 
 static __rte_always_inline uint16_t
-cn10k_nix_recv_pkts_vector(void *rx_queue, struct rte_mbuf **rx_pkts,
-                          uint16_t pkts, const uint16_t flags)
+cn10k_nix_recv_pkts_vector(void *args, struct rte_mbuf **mbufs, uint16_t pkts,
+                          const uint16_t flags, void *lookup_mem,
+                          struct cnxk_timesync_info *tstamp)
 {
-       struct cn10k_eth_rxq *rxq = rx_queue;
-       uint16_t packets = 0;
+       struct cn10k_eth_rxq *rxq = args;
+       const uint64_t mbuf_initializer = (flags & NIX_RX_VWQE_F) ?
+                                                       *(uint64_t *)args :
+                                                       rxq->mbuf_initializer;
+       const uint64x2_t data_off = flags & NIX_RX_VWQE_F ?
+                                                 vdupq_n_u64(0x80ULL) :
+                                                 vdupq_n_u64(rxq->data_off);
+       const uint32_t qmask = flags & NIX_RX_VWQE_F ? 0 : rxq->qmask;
+       const uint64_t wdata = flags & NIX_RX_VWQE_F ? 0 : rxq->wdata;
+       const uintptr_t desc = flags & NIX_RX_VWQE_F ? 0 : rxq->desc;
        uint64x2_t cq0_w8, cq1_w8, cq2_w8, cq3_w8, mbuf01, mbuf23;
-       const uint64_t mbuf_initializer = rxq->mbuf_initializer;
-       const uint64x2_t data_off = vdupq_n_u64(rxq->data_off);
        uint64_t ol_flags0, ol_flags1, ol_flags2, ol_flags3;
        uint64x2_t rearm0 = vdupq_n_u64(mbuf_initializer);
        uint64x2_t rearm1 = vdupq_n_u64(mbuf_initializer);
        uint64x2_t rearm2 = vdupq_n_u64(mbuf_initializer);
        uint64x2_t rearm3 = vdupq_n_u64(mbuf_initializer);
        struct rte_mbuf *mbuf0, *mbuf1, *mbuf2, *mbuf3;
-       const uint16_t *lookup_mem = rxq->lookup_mem;
-       const uint32_t qmask = rxq->qmask;
-       const uint64_t wdata = rxq->wdata;
-       const uintptr_t desc = rxq->desc;
        uint8x16_t f0, f1, f2, f3;
-       uint32_t head = rxq->head;
+       uint16_t packets = 0;
        uint16_t pkts_left;
-
-       pkts = nix_rx_nb_pkts(rxq, wdata, pkts, qmask);
-       pkts_left = pkts & (NIX_DESCS_PER_LOOP - 1);
-
-       /* Packets has to be floor-aligned to NIX_DESCS_PER_LOOP */
-       pkts = RTE_ALIGN_FLOOR(pkts, NIX_DESCS_PER_LOOP);
+       uint32_t head;
+       uintptr_t cq0;
+
+       if (!(flags & NIX_RX_VWQE_F)) {
+               lookup_mem = rxq->lookup_mem;
+               head = rxq->head;
+
+               pkts = nix_rx_nb_pkts(rxq, wdata, pkts, qmask);
+               pkts_left = pkts & (NIX_DESCS_PER_LOOP - 1);
+               /* Packets has to be floor-aligned to NIX_DESCS_PER_LOOP */
+               pkts = RTE_ALIGN_FLOOR(pkts, NIX_DESCS_PER_LOOP);
+               if (flags & NIX_RX_OFFLOAD_TSTAMP_F)
+                       tstamp = rxq->tstamp;
+       } else {
+               RTE_SET_USED(head);
+       }
 
        while (packets < pkts) {
-               /* Exit loop if head is about to wrap and become unaligned */
-               if (((head + NIX_DESCS_PER_LOOP - 1) & qmask) <
-                   NIX_DESCS_PER_LOOP) {
-                       pkts_left += (pkts - packets);
-                       break;
-               }
+               if (!(flags & NIX_RX_VWQE_F)) {
+                       /* Exit loop if head is about to wrap and become
+                        * unaligned.
+                        */
+                       if (((head + NIX_DESCS_PER_LOOP - 1) & qmask) <
+                           NIX_DESCS_PER_LOOP) {
+                               pkts_left += (pkts - packets);
+                               break;
+                       }
 
-               const uintptr_t cq0 = desc + CQE_SZ(head);
+                       cq0 = desc + CQE_SZ(head);
+               } else {
+                       cq0 = (uintptr_t)&mbufs[packets];
+               }
 
                /* Prefetch N desc ahead */
-               rte_prefetch_non_temporal((void *)(cq0 + CQE_SZ(8)));
-               rte_prefetch_non_temporal((void *)(cq0 + CQE_SZ(9)));
-               rte_prefetch_non_temporal((void *)(cq0 + CQE_SZ(10)));
-               rte_prefetch_non_temporal((void *)(cq0 + CQE_SZ(11)));
+               rte_prefetch_non_temporal(CQE_PTR_OFF(cq0, 8, 0, flags));
+               rte_prefetch_non_temporal(CQE_PTR_OFF(cq0, 9, 0, flags));
+               rte_prefetch_non_temporal(CQE_PTR_OFF(cq0, 10, 0, flags));
+               rte_prefetch_non_temporal(CQE_PTR_OFF(cq0, 11, 0, flags));
 
                /* Get NIX_RX_SG_S for size and buffer pointer */
-               cq0_w8 = vld1q_u64((uint64_t *)(cq0 + CQE_SZ(0) + 64));
-               cq1_w8 = vld1q_u64((uint64_t *)(cq0 + CQE_SZ(1) + 64));
-               cq2_w8 = vld1q_u64((uint64_t *)(cq0 + CQE_SZ(2) + 64));
-               cq3_w8 = vld1q_u64((uint64_t *)(cq0 + CQE_SZ(3) + 64));
-
-               /* Extract mbuf from NIX_RX_SG_S */
-               mbuf01 = vzip2q_u64(cq0_w8, cq1_w8);
-               mbuf23 = vzip2q_u64(cq2_w8, cq3_w8);
-               mbuf01 = vqsubq_u64(mbuf01, data_off);
-               mbuf23 = vqsubq_u64(mbuf23, data_off);
+               cq0_w8 = vld1q_u64(CQE_PTR_OFF(cq0, 0, 64, flags));
+               cq1_w8 = vld1q_u64(CQE_PTR_OFF(cq0, 1, 64, flags));
+               cq2_w8 = vld1q_u64(CQE_PTR_OFF(cq0, 2, 64, flags));
+               cq3_w8 = vld1q_u64(CQE_PTR_OFF(cq0, 3, 64, flags));
+
+               if (!(flags & NIX_RX_VWQE_F)) {
+                       /* Extract mbuf from NIX_RX_SG_S */
+                       mbuf01 = vzip2q_u64(cq0_w8, cq1_w8);
+                       mbuf23 = vzip2q_u64(cq2_w8, cq3_w8);
+                       mbuf01 = vqsubq_u64(mbuf01, data_off);
+                       mbuf23 = vqsubq_u64(mbuf23, data_off);
+               } else {
+                       mbuf01 =
+                               vsubq_u64(vld1q_u64((uint64_t *)cq0), data_off);
+                       mbuf23 = vsubq_u64(vld1q_u64((uint64_t *)(cq0 + 16)),
+                                          data_off);
+               }
 
                /* Move mbufs to scalar registers for future use */
                mbuf0 = (struct rte_mbuf *)vgetq_lane_u64(mbuf01, 0);
@@ -395,14 +427,14 @@ cn10k_nix_recv_pkts_vector(void *rx_queue, struct rte_mbuf **rx_pkts,
                f3 = vqtbl1q_u8(cq3_w8, shuf_msk);
 
                /* Load CQE word0 and word 1 */
-               uint64_t cq0_w0 = ((uint64_t *)(cq0 + CQE_SZ(0)))[0];
-               uint64_t cq0_w1 = ((uint64_t *)(cq0 + CQE_SZ(0)))[1];
-               uint64_t cq1_w0 = ((uint64_t *)(cq0 + CQE_SZ(1)))[0];
-               uint64_t cq1_w1 = ((uint64_t *)(cq0 + CQE_SZ(1)))[1];
-               uint64_t cq2_w0 = ((uint64_t *)(cq0 + CQE_SZ(2)))[0];
-               uint64_t cq2_w1 = ((uint64_t *)(cq0 + CQE_SZ(2)))[1];
-               uint64_t cq3_w0 = ((uint64_t *)(cq0 + CQE_SZ(3)))[0];
-               uint64_t cq3_w1 = ((uint64_t *)(cq0 + CQE_SZ(3)))[1];
+               const uint64_t cq0_w0 = *CQE_PTR_OFF(cq0, 0, 0, flags);
+               const uint64_t cq0_w1 = *CQE_PTR_OFF(cq0, 0, 8, flags);
+               const uint64_t cq1_w0 = *CQE_PTR_OFF(cq0, 1, 0, flags);
+               const uint64_t cq1_w1 = *CQE_PTR_OFF(cq0, 1, 8, flags);
+               const uint64_t cq2_w0 = *CQE_PTR_OFF(cq0, 2, 0, flags);
+               const uint64_t cq2_w1 = *CQE_PTR_OFF(cq0, 2, 8, flags);
+               const uint64_t cq3_w0 = *CQE_PTR_OFF(cq0, 3, 0, flags);
+               const uint64_t cq3_w1 = *CQE_PTR_OFF(cq0, 3, 8, flags);
 
                if (flags & NIX_RX_OFFLOAD_RSS_F) {
                        /* Fill rss in the rx_descriptor_fields1 */
@@ -459,17 +491,17 @@ cn10k_nix_recv_pkts_vector(void *rx_queue, struct rte_mbuf **rx_pkts,
 
                if (flags & NIX_RX_OFFLOAD_MARK_UPDATE_F) {
                        ol_flags0 = nix_update_match_id(
-                               *(uint16_t *)(cq0 + CQE_SZ(0) + 38), ol_flags0,
-                               mbuf0);
+                               *(uint16_t *)CQE_PTR_OFF(cq0, 0, 38, flags),
+                               ol_flags0, mbuf0);
                        ol_flags1 = nix_update_match_id(
-                               *(uint16_t *)(cq0 + CQE_SZ(1) + 38), ol_flags1,
-                               mbuf1);
+                               *(uint16_t *)CQE_PTR_OFF(cq0, 1, 38, flags),
+                               ol_flags1, mbuf1);
                        ol_flags2 = nix_update_match_id(
-                               *(uint16_t *)(cq0 + CQE_SZ(2) + 38), ol_flags2,
-                               mbuf2);
+                               *(uint16_t *)CQE_PTR_OFF(cq0, 2, 38, flags),
+                               ol_flags2, mbuf2);
                        ol_flags3 = nix_update_match_id(
-                               *(uint16_t *)(cq0 + CQE_SZ(3) + 38), ol_flags3,
-                               mbuf3);
+                               *(uint16_t *)CQE_PTR_OFF(cq0, 3, 38, flags),
+                               ol_flags3, mbuf3);
                }
 
                if (flags & NIX_RX_OFFLOAD_TSTAMP_F) {
@@ -488,7 +520,7 @@ cn10k_nix_recv_pkts_vector(void *rx_queue, struct rte_mbuf **rx_pkts,
                                                  RTE_PTYPE_L2_ETHER_TIMESYNC};
                        const uint64_t ts_olf = PKT_RX_IEEE1588_PTP |
                                                PKT_RX_IEEE1588_TMST |
-                                               rxq->tstamp->rx_tstamp_dynflag;
+                                               tstamp->rx_tstamp_dynflag;
                        const uint32x4_t and_mask = {0x1, 0x2, 0x4, 0x8};
                        uint64x2_t ts01, ts23, mask;
                        uint64_t ts[4];
@@ -526,14 +558,10 @@ cn10k_nix_recv_pkts_vector(void *rx_queue, struct rte_mbuf **rx_pkts,
                        ts[3] = vgetq_lane_u64(ts23, 1);
 
                        /* Store timestamp into dynfield. */
-                       *cnxk_nix_timestamp_dynfield(mbuf0, rxq->tstamp) =
-                               ts[0];
-                       *cnxk_nix_timestamp_dynfield(mbuf1, rxq->tstamp) =
-                               ts[1];
-                       *cnxk_nix_timestamp_dynfield(mbuf2, rxq->tstamp) =
-                               ts[2];
-                       *cnxk_nix_timestamp_dynfield(mbuf3, rxq->tstamp) =
-                               ts[3];
+                       *cnxk_nix_timestamp_dynfield(mbuf0, tstamp) = ts[0];
+                       *cnxk_nix_timestamp_dynfield(mbuf1, tstamp) = ts[1];
+                       *cnxk_nix_timestamp_dynfield(mbuf2, tstamp) = ts[2];
+                       *cnxk_nix_timestamp_dynfield(mbuf3, tstamp) = ts[3];
 
                        /* Generate ptype mask to filter L2 ether timesync */
                        mask = vdupq_n_u32(vgetq_lane_u32(f0, 0));
@@ -559,9 +587,8 @@ cn10k_nix_recv_pkts_vector(void *rx_queue, struct rte_mbuf **rx_pkts,
                                /* Update Rxq timestamp with the latest
                                 * timestamp.
                                 */
-                               rxq->tstamp->rx_ready = 1;
-                               rxq->tstamp->rx_tstamp =
-                                       ts[31 - __builtin_clz(res)];
+                               tstamp->rx_ready = 1;
+                               tstamp->rx_tstamp = ts[31 - __builtin_clz(res)];
                        }
                }
 
@@ -584,25 +611,25 @@ cn10k_nix_recv_pkts_vector(void *rx_queue, struct rte_mbuf **rx_pkts,
                vst1q_u64((uint64_t *)mbuf3->rearm_data, rearm3);
 
                /* Store the mbufs to rx_pkts */
-               vst1q_u64((uint64_t *)&rx_pkts[packets], mbuf01);
-               vst1q_u64((uint64_t *)&rx_pkts[packets + 2], mbuf23);
+               vst1q_u64((uint64_t *)&mbufs[packets], mbuf01);
+               vst1q_u64((uint64_t *)&mbufs[packets + 2], mbuf23);
 
                if (flags & NIX_RX_MULTI_SEG_F) {
                        /* Multi segment is enable build mseg list for
                         * individual mbufs in scalar mode.
                         */
                        nix_cqe_xtract_mseg((union nix_rx_parse_u *)
-                                               (cq0 + CQE_SZ(0) + 8), mbuf0,
-                                           mbuf_initializer, flags);
+                                           (CQE_PTR_OFF(cq0, 0, 8, flags)),
+                                           mbuf0, mbuf_initializer, flags);
                        nix_cqe_xtract_mseg((union nix_rx_parse_u *)
-                                               (cq0 + CQE_SZ(1) + 8), mbuf1,
-                                           mbuf_initializer, flags);
+                                           (CQE_PTR_OFF(cq0, 1, 8, flags)),
+                                           mbuf1, mbuf_initializer, flags);
                        nix_cqe_xtract_mseg((union nix_rx_parse_u *)
-                                               (cq0 + CQE_SZ(2) + 8), mbuf2,
-                                           mbuf_initializer, flags);
+                                           (CQE_PTR_OFF(cq0, 2, 8, flags)),
+                                           mbuf2, mbuf_initializer, flags);
                        nix_cqe_xtract_mseg((union nix_rx_parse_u *)
-                                               (cq0 + CQE_SZ(3) + 8), mbuf3,
-                                           mbuf_initializer, flags);
+                                           (CQE_PTR_OFF(cq0, 3, 8, flags)),
+                                           mbuf3, mbuf_initializer, flags);
                } else {
                        /* Update that no more segments */
                        mbuf0->next = NULL;
@@ -623,12 +650,18 @@ cn10k_nix_recv_pkts_vector(void *rx_queue, struct rte_mbuf **rx_pkts,
                __mempool_check_cookies(mbuf2->pool, (void **)&mbuf2, 1, 1);
                __mempool_check_cookies(mbuf3->pool, (void **)&mbuf3, 1, 1);
 
-               /* Advance head pointer and packets */
-               head += NIX_DESCS_PER_LOOP;
-               head &= qmask;
                packets += NIX_DESCS_PER_LOOP;
+
+               if (!(flags & NIX_RX_VWQE_F)) {
+                       /* Advance head pointer and packets */
+                       head += NIX_DESCS_PER_LOOP;
+                       head &= qmask;
+               }
        }
 
+       if (flags & NIX_RX_VWQE_F)
+               return packets;
+
        rxq->head = head;
        rxq->available -= packets;
 
@@ -637,8 +670,8 @@ cn10k_nix_recv_pkts_vector(void *rx_queue, struct rte_mbuf **rx_pkts,
        plt_write64((rxq->wdata | packets), rxq->cq_door);
 
        if (unlikely(pkts_left))
-               packets += cn10k_nix_recv_pkts(rx_queue, &rx_pkts[packets],
-                                              pkts_left, flags);
+               packets += cn10k_nix_recv_pkts(args, &mbufs[packets], pkts_left,
+                                              flags);
 
        return packets;
 }
@@ -647,12 +680,15 @@ cn10k_nix_recv_pkts_vector(void *rx_queue, struct rte_mbuf **rx_pkts,
 
 static inline uint16_t
 cn10k_nix_recv_pkts_vector(void *rx_queue, struct rte_mbuf **rx_pkts,
-                          uint16_t pkts, const uint16_t flags)
+                          uint16_t pkts, const uint16_t flags,
+                          void *lookup_mem, void *tstamp)
 {
+       RTE_SET_USED(lookup_mem);
        RTE_SET_USED(rx_queue);
        RTE_SET_USED(rx_pkts);
        RTE_SET_USED(pkts);
        RTE_SET_USED(flags);
+       RTE_SET_USED(tstamp);
 
        return 0;
 }
index 93528a4..166735a 100644 (file)
@@ -12,7 +12,7 @@
                                               uint16_t pkts)                  \
        {                                                                      \
                return cn10k_nix_recv_pkts_vector(rx_queue, rx_pkts, pkts,     \
-                                                 (flags));                    \
+                                                 (flags), NULL, NULL);        \
        }
 
 NIX_RX_FASTPATH_MODES
index 04d1e46..1f44ddd 100644 (file)
@@ -9,8 +9,9 @@
        uint16_t __rte_noinline __rte_hot cn10k_nix_recv_pkts_vec_mseg_##name( \
                void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t pkts)      \
        {                                                                      \
-               return cn10k_nix_recv_pkts_vector(rx_queue, rx_pkts, pkts,     \
-                                         (flags) | NIX_RX_MULTI_SEG_F);       \
+               return cn10k_nix_recv_pkts_vector(                             \
+                       rx_queue, rx_pkts, pkts, (flags) | NIX_RX_MULTI_SEG_F, \
+                       NULL, NULL);                                           \
        }
 
 NIX_RX_FASTPATH_MODES