+union mbuf_initializer {
+ struct {
+ uint16_t data_off;
+ uint16_t refcnt;
+ uint16_t nb_segs;
+ uint16_t port;
+ } fields;
+ uint64_t value;
+};
+
+static __rte_always_inline void
+otx2_nix_mbuf_to_tstamp(struct rte_mbuf *mbuf,
+ struct otx2_timesync_info *tstamp, const uint16_t flag)
+{
+ if ((flag & NIX_RX_OFFLOAD_TSTAMP_F) &&
+ mbuf->packet_type == RTE_PTYPE_L2_ETHER_TIMESYNC &&
+ (mbuf->data_off == RTE_PKTMBUF_HEADROOM +
+ NIX_TIMESYNC_RX_OFFSET)) {
+ uint64_t *tstamp_ptr;
+
+ /* Deal with rx timestamp */
+ tstamp_ptr = rte_pktmbuf_mtod_offset(mbuf, uint64_t *,
+ -NIX_TIMESYNC_RX_OFFSET);
+ mbuf->timestamp = rte_be_to_cpu_64(*tstamp_ptr);
+ tstamp->rx_tstamp = mbuf->timestamp;
+ tstamp->rx_ready = 1;
+ mbuf->ol_flags |= PKT_RX_IEEE1588_PTP | PKT_RX_IEEE1588_TMST
+ | PKT_RX_TIMESTAMP;
+ }
+}
+
+static __rte_always_inline uint64_t
+nix_clear_data_off(uint64_t oldval)
+{
+ union mbuf_initializer mbuf_init = { .value = oldval };
+
+ mbuf_init.fields.data_off = 0;
+ return mbuf_init.value;
+}
+
+static __rte_always_inline struct rte_mbuf *
+nix_get_mbuf_from_cqe(void *cq, const uint64_t data_off)
+{
+ rte_iova_t buff;
+
+ /* Skip CQE, NIX_RX_PARSE_S and SG HDR(9 DWORDs) and peek buff addr */
+ buff = *((rte_iova_t *)((uint64_t *)cq + 9));
+ return (struct rte_mbuf *)(buff - data_off);
+}
+
+
+static __rte_always_inline uint32_t
+nix_ptype_get(const void * const lookup_mem, const uint64_t in)
+{
+ const uint16_t * const ptype = lookup_mem;
+ const uint16_t lg_lf_le = (in & 0xFFF000000000000) >> 48;
+ const uint16_t tu_l2 = ptype[(in & 0x000FFF000000000) >> 36];
+ const uint16_t il4_tu = ptype[PTYPE_NON_TUNNEL_ARRAY_SZ + lg_lf_le];
+
+ return (il4_tu << PTYPE_WIDTH) | tu_l2;
+}
+
+static __rte_always_inline uint32_t
+nix_rx_olflags_get(const void * const lookup_mem, const uint64_t in)
+{
+ const uint32_t * const ol_flags = (const uint32_t *)
+ ((const uint8_t *)lookup_mem + PTYPE_ARRAY_SZ);
+
+ return ol_flags[(in & 0xfff00000) >> 20];
+}
+
+static inline uint64_t
+nix_update_match_id(const uint16_t match_id, uint64_t ol_flags,
+ struct rte_mbuf *mbuf)
+{
+ /* There is no separate bit to check match_id
+ * is valid or not? and no flag to identify it is an
+ * RTE_FLOW_ACTION_TYPE_FLAG vs RTE_FLOW_ACTION_TYPE_MARK
+ * action. The former case addressed through 0 being invalid
+ * value and inc/dec match_id pair when MARK is activated.
+ * The later case addressed through defining
+ * OTX2_FLOW_MARK_DEFAULT as value for
+ * RTE_FLOW_ACTION_TYPE_MARK.
+ * This would translate to not use
+ * OTX2_FLOW_ACTION_FLAG_DEFAULT - 1 and
+ * OTX2_FLOW_ACTION_FLAG_DEFAULT for match_id.
+ * i.e valid mark_id's are from
+ * 0 to OTX2_FLOW_ACTION_FLAG_DEFAULT - 2
+ */
+ if (likely(match_id)) {
+ ol_flags |= PKT_RX_FDIR;
+ if (match_id != OTX2_FLOW_ACTION_FLAG_DEFAULT) {
+ ol_flags |= PKT_RX_FDIR_ID;
+ mbuf->hash.fdir.hi = match_id - 1;
+ }
+ }
+
+ return ol_flags;
+}
+
+static __rte_always_inline void
+nix_cqe_xtract_mseg(const struct nix_rx_parse_s *rx,
+ struct rte_mbuf *mbuf, uint64_t rearm)
+{
+ const rte_iova_t *iova_list;
+ struct rte_mbuf *head;
+ const rte_iova_t *eol;
+ uint8_t nb_segs;
+ uint64_t sg;
+
+ sg = *(const uint64_t *)(rx + 1);
+ nb_segs = (sg >> 48) & 0x3;
+ mbuf->nb_segs = nb_segs;
+ mbuf->data_len = sg & 0xFFFF;
+ sg = sg >> 16;
+
+ eol = ((const rte_iova_t *)(rx + 1) + ((rx->desc_sizem1 + 1) << 1));
+ /* Skip SG_S and first IOVA*/
+ iova_list = ((const rte_iova_t *)(rx + 1)) + 2;
+ nb_segs--;
+
+ rearm = rearm & ~0xFFFF;
+
+ head = mbuf;
+ while (nb_segs) {
+ mbuf->next = ((struct rte_mbuf *)*iova_list) - 1;
+ mbuf = mbuf->next;
+
+ __mempool_check_cookies(mbuf->pool, (void **)&mbuf, 1, 1);
+
+ mbuf->data_len = sg & 0xFFFF;
+ sg = sg >> 16;
+ *(uint64_t *)(&mbuf->rearm_data) = rearm;
+ nb_segs--;
+ iova_list++;
+
+ if (!nb_segs && (iova_list + 1 < eol)) {
+ sg = *(const uint64_t *)(iova_list);
+ nb_segs = (sg >> 48) & 0x3;
+ head->nb_segs += nb_segs;
+ iova_list = (const rte_iova_t *)(iova_list + 1);
+ }
+ }
+}
+
+static __rte_always_inline void
+otx2_nix_cqe_to_mbuf(const struct nix_cqe_hdr_s *cq, const uint32_t tag,
+ struct rte_mbuf *mbuf, const void *lookup_mem,
+ const uint64_t val, const uint16_t flag)
+{
+ const struct nix_rx_parse_s *rx =
+ (const struct nix_rx_parse_s *)((const uint64_t *)cq + 1);
+ const uint64_t w1 = *(const uint64_t *)rx;
+ const uint16_t len = rx->pkt_lenm1 + 1;
+ uint64_t ol_flags = 0;
+
+ /* Mark mempool obj as "get" as it is alloc'ed by NIX */
+ __mempool_check_cookies(mbuf->pool, (void **)&mbuf, 1, 1);
+
+ if (flag & NIX_RX_OFFLOAD_PTYPE_F)
+ mbuf->packet_type = nix_ptype_get(lookup_mem, w1);
+ else
+ mbuf->packet_type = 0;
+
+ if (flag & NIX_RX_OFFLOAD_RSS_F) {
+ mbuf->hash.rss = tag;
+ ol_flags |= PKT_RX_RSS_HASH;
+ }
+
+ if (flag & NIX_RX_OFFLOAD_CHECKSUM_F)
+ ol_flags |= nix_rx_olflags_get(lookup_mem, w1);
+
+ if (flag & NIX_RX_OFFLOAD_VLAN_STRIP_F) {
+ if (rx->vtag0_gone) {
+ ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
+ mbuf->vlan_tci = rx->vtag0_tci;
+ }
+ if (rx->vtag1_gone) {
+ ol_flags |= PKT_RX_QINQ | PKT_RX_QINQ_STRIPPED;
+ mbuf->vlan_tci_outer = rx->vtag1_tci;
+ }
+ }
+
+ if (flag & NIX_RX_OFFLOAD_MARK_UPDATE_F)
+ ol_flags = nix_update_match_id(rx->match_id, ol_flags, mbuf);
+
+ mbuf->ol_flags = ol_flags;
+ *(uint64_t *)(&mbuf->rearm_data) = val;
+ mbuf->pkt_len = len;
+
+ if (flag & NIX_RX_MULTI_SEG_F)
+ nix_cqe_xtract_mseg(rx, mbuf, val);
+ else
+ mbuf->data_len = len;
+}
+
+#define CKSUM_F NIX_RX_OFFLOAD_CHECKSUM_F
+#define PTYPE_F NIX_RX_OFFLOAD_PTYPE_F
+#define RSS_F NIX_RX_OFFLOAD_RSS_F
+#define RX_VLAN_F NIX_RX_OFFLOAD_VLAN_STRIP_F
+#define MARK_F NIX_RX_OFFLOAD_MARK_UPDATE_F
+#define TS_F NIX_RX_OFFLOAD_TSTAMP_F
+
+/* [TSMP] [MARK] [VLAN] [CKSUM] [PTYPE] [RSS] */
+#define NIX_RX_FASTPATH_MODES \
+R(no_offload, 0, 0, 0, 0, 0, 0, NIX_RX_OFFLOAD_NONE) \
+R(rss, 0, 0, 0, 0, 0, 1, RSS_F) \
+R(ptype, 0, 0, 0, 0, 1, 0, PTYPE_F) \
+R(ptype_rss, 0, 0, 0, 0, 1, 1, PTYPE_F | RSS_F) \
+R(cksum, 0, 0, 0, 1, 0, 0, CKSUM_F) \
+R(cksum_rss, 0, 0, 0, 1, 0, 1, CKSUM_F | RSS_F) \
+R(cksum_ptype, 0, 0, 0, 1, 1, 0, CKSUM_F | PTYPE_F) \
+R(cksum_ptype_rss, 0, 0, 0, 1, 1, 1, CKSUM_F | PTYPE_F | RSS_F)\
+R(vlan, 0, 0, 1, 0, 0, 0, RX_VLAN_F) \
+R(vlan_rss, 0, 0, 1, 0, 0, 1, RX_VLAN_F | RSS_F) \
+R(vlan_ptype, 0, 0, 1, 0, 1, 0, RX_VLAN_F | PTYPE_F) \
+R(vlan_ptype_rss, 0, 0, 1, 0, 1, 1, RX_VLAN_F | PTYPE_F | RSS_F)\
+R(vlan_cksum, 0, 0, 1, 1, 0, 0, RX_VLAN_F | CKSUM_F) \
+R(vlan_cksum_rss, 0, 0, 1, 1, 0, 1, RX_VLAN_F | CKSUM_F | RSS_F)\
+R(vlan_cksum_ptype, 0, 0, 1, 1, 1, 0, \
+ RX_VLAN_F | CKSUM_F | PTYPE_F) \
+R(vlan_cksum_ptype_rss, 0, 0, 1, 1, 1, 1, \
+ RX_VLAN_F | CKSUM_F | PTYPE_F | RSS_F) \
+R(mark, 0, 1, 0, 0, 0, 0, MARK_F) \
+R(mark_rss, 0, 1, 0, 0, 0, 1, MARK_F | RSS_F) \
+R(mark_ptype, 0, 1, 0, 0, 1, 0, MARK_F | PTYPE_F) \
+R(mark_ptype_rss, 0, 1, 0, 0, 1, 1, MARK_F | PTYPE_F | RSS_F)\
+R(mark_cksum, 0, 1, 0, 1, 0, 0, MARK_F | CKSUM_F) \
+R(mark_cksum_rss, 0, 1, 0, 1, 0, 1, MARK_F | CKSUM_F | RSS_F)\
+R(mark_cksum_ptype, 0, 1, 0, 1, 1, 0, MARK_F | CKSUM_F | PTYPE_F)\
+R(mark_cksum_ptype_rss, 0, 1, 0, 1, 1, 1, \
+ MARK_F | CKSUM_F | PTYPE_F | RSS_F) \
+R(mark_vlan, 0, 1, 1, 0, 0, 0, MARK_F | RX_VLAN_F) \
+R(mark_vlan_rss, 0, 1, 1, 0, 0, 1, MARK_F | RX_VLAN_F | RSS_F)\
+R(mark_vlan_ptype, 0, 1, 1, 0, 1, 0, \
+ MARK_F | RX_VLAN_F | PTYPE_F) \
+R(mark_vlan_ptype_rss, 0, 1, 1, 0, 1, 1, \
+ MARK_F | RX_VLAN_F | PTYPE_F | RSS_F) \
+R(mark_vlan_cksum, 0, 1, 1, 1, 0, 0, \
+ MARK_F | RX_VLAN_F | CKSUM_F) \
+R(mark_vlan_cksum_rss, 0, 1, 1, 1, 0, 1, \
+ MARK_F | RX_VLAN_F | CKSUM_F | RSS_F) \
+R(mark_vlan_cksum_ptype, 0, 1, 1, 1, 1, 0, \
+ MARK_F | RX_VLAN_F | CKSUM_F | PTYPE_F) \
+R(mark_vlan_cksum_ptype_rss, 0, 1, 1, 1, 1, 1, \
+ MARK_F | RX_VLAN_F | CKSUM_F | PTYPE_F | RSS_F) \
+R(ts, 1, 0, 0, 0, 0, 0, TS_F) \
+R(ts_rss, 1, 0, 0, 0, 0, 1, TS_F | RSS_F) \
+R(ts_ptype, 1, 0, 0, 0, 1, 0, TS_F | PTYPE_F) \
+R(ts_ptype_rss, 1, 0, 0, 0, 1, 1, TS_F | PTYPE_F | RSS_F)\
+R(ts_cksum, 1, 0, 0, 1, 0, 0, TS_F | CKSUM_F) \
+R(ts_cksum_rss, 1, 0, 0, 1, 0, 1, TS_F | CKSUM_F | RSS_F)\
+R(ts_cksum_ptype, 1, 0, 0, 1, 1, 0, TS_F | CKSUM_F | PTYPE_F)\
+R(ts_cksum_ptype_rss, 1, 0, 0, 1, 1, 1, \
+ TS_F | CKSUM_F | PTYPE_F | RSS_F) \
+R(ts_vlan, 1, 0, 1, 0, 0, 0, TS_F | RX_VLAN_F) \
+R(ts_vlan_rss, 1, 0, 1, 0, 0, 1, TS_F | RX_VLAN_F | RSS_F)\
+R(ts_vlan_ptype, 1, 0, 1, 0, 1, 0, TS_F | RX_VLAN_F | PTYPE_F)\
+R(ts_vlan_ptype_rss, 1, 0, 1, 0, 1, 1, \
+ TS_F | RX_VLAN_F | PTYPE_F | RSS_F) \
+R(ts_vlan_cksum, 1, 0, 1, 1, 0, 0, \
+ TS_F | RX_VLAN_F | CKSUM_F) \
+R(ts_vlan_cksum_rss, 1, 0, 1, 1, 0, 1, \
+ MARK_F | RX_VLAN_F | CKSUM_F | RSS_F) \
+R(ts_vlan_cksum_ptype, 1, 0, 1, 1, 1, 0, \
+ TS_F | RX_VLAN_F | CKSUM_F | PTYPE_F) \
+R(ts_vlan_cksum_ptype_rss, 1, 0, 1, 1, 1, 1, \
+ TS_F | RX_VLAN_F | CKSUM_F | PTYPE_F | RSS_F) \
+R(ts_mark, 1, 1, 0, 0, 0, 0, TS_F | MARK_F) \
+R(ts_mark_rss, 1, 1, 0, 0, 0, 1, TS_F | MARK_F | RSS_F)\
+R(ts_mark_ptype, 1, 1, 0, 0, 1, 0, TS_F | MARK_F | PTYPE_F)\
+R(ts_mark_ptype_rss, 1, 1, 0, 0, 1, 1, \
+ TS_F | MARK_F | PTYPE_F | RSS_F) \
+R(ts_mark_cksum, 1, 1, 0, 1, 0, 0, TS_F | MARK_F | CKSUM_F)\
+R(ts_mark_cksum_rss, 1, 1, 0, 1, 0, 1, \
+ TS_F | MARK_F | CKSUM_F | RSS_F)\
+R(ts_mark_cksum_ptype, 1, 1, 0, 1, 1, 0, \
+ TS_F | MARK_F | CKSUM_F | PTYPE_F) \
+R(ts_mark_cksum_ptype_rss, 1, 1, 0, 1, 1, 1, \
+ TS_F | MARK_F | CKSUM_F | PTYPE_F | RSS_F) \
+R(ts_mark_vlan, 1, 1, 1, 0, 0, 0, TS_F | MARK_F | RX_VLAN_F)\
+R(ts_mark_vlan_rss, 1, 1, 1, 0, 0, 1, \
+ TS_F | MARK_F | RX_VLAN_F | RSS_F)\
+R(ts_mark_vlan_ptype, 1, 1, 1, 0, 1, 0, \
+ TS_F | MARK_F | RX_VLAN_F | PTYPE_F) \
+R(ts_mark_vlan_ptype_rss, 1, 1, 1, 0, 1, 1, \
+ TS_F | MARK_F | RX_VLAN_F | PTYPE_F | RSS_F) \
+R(ts_mark_vlan_cksum_ptype, 1, 1, 1, 1, 1, 0, \
+ TS_F | MARK_F | RX_VLAN_F | CKSUM_F | PTYPE_F) \
+R(ts_mark_vlan_cksum_ptype_rss, 1, 1, 1, 1, 1, 1, \
+ TS_F | MARK_F | RX_VLAN_F | CKSUM_F | PTYPE_F | RSS_F)
+