+union octeon_packet_params {
+ uint32_t pkt_params32;
+ struct {
+#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
+ uint32_t reserved : 24;
+ uint32_t ip_csum : 1; /* Perform IP header checksum(s) */
+ /* Perform Outer transport header checksum */
+ uint32_t transport_csum : 1;
+ /* Find tunnel, and perform transport csum. */
+ uint32_t tnl_csum : 1;
+ uint32_t tsflag : 1; /* Timestamp this packet */
+ uint32_t ipsec_ops : 4; /* IPsec operation */
+#else
+ uint32_t ipsec_ops : 4;
+ uint32_t tsflag : 1;
+ uint32_t tnl_csum : 1;
+ uint32_t transport_csum : 1;
+ uint32_t ip_csum : 1;
+ uint32_t reserved : 7;
+#endif
+ } s;
+};
+
+/** Utility function to prepare a 64B NIC instruction based on a setup command
+ * @param cmd - pointer to instruction to be filled in.
+ * @param setup - pointer to the setup structure
+ * @param q_no - which queue for back pressure
+ *
+ * Assumes the cmd instruction is pre-allocated, but no fields are filled in.
+ */
+static inline void
+lio_prepare_pci_cmd(struct lio_device *lio_dev,
+ union lio_instr_64B *cmd,
+ union lio_cmd_setup *setup,
+ uint32_t tag)
+{
+ union octeon_packet_params packet_params;
+ struct octeon_instr_pki_ih3 *pki_ih3;
+ struct octeon_instr_irh *irh;
+ struct octeon_instr_ih3 *ih3;
+ int port;
+
+ memset(cmd, 0, sizeof(union lio_instr_64B));
+
+ ih3 = (struct octeon_instr_ih3 *)&cmd->cmd3.ih3;
+ pki_ih3 = (struct octeon_instr_pki_ih3 *)&cmd->cmd3.pki_ih3;
+
+ /* assume that rflag is cleared so therefore front data will only have
+ * irh and ossp[1] and ossp[2] for a total of 24 bytes
+ */
+ ih3->pkind = lio_dev->instr_queue[setup->s.iq_no]->txpciq.s.pkind;
+ /* PKI IH */
+ ih3->fsz = OCTEON_PCI_CMD_O3;
+
+ if (!setup->s.gather) {
+ ih3->dlengsz = setup->s.u.datasize;
+ } else {
+ ih3->gather = 1;
+ ih3->dlengsz = setup->s.u.gatherptrs;
+ }
+
+ pki_ih3->w = 1;
+ pki_ih3->raw = 0;
+ pki_ih3->utag = 0;
+ pki_ih3->utt = 1;
+ pki_ih3->uqpg = lio_dev->instr_queue[setup->s.iq_no]->txpciq.s.use_qpg;
+
+ port = (int)lio_dev->instr_queue[setup->s.iq_no]->txpciq.s.port;
+
+ if (tag)
+ pki_ih3->tag = tag;
+ else
+ pki_ih3->tag = LIO_DATA(port);
+
+ pki_ih3->tagtype = OCTEON_ORDERED_TAG;
+ pki_ih3->qpg = lio_dev->instr_queue[setup->s.iq_no]->txpciq.s.qpg;
+ pki_ih3->pm = 0x0; /* parse from L2 */
+ pki_ih3->sl = 32; /* sl will be sizeof(pki_ih3) + irh + ossp0 + ossp1*/
+
+ irh = (struct octeon_instr_irh *)&cmd->cmd3.irh;
+
+ irh->opcode = LIO_OPCODE;
+ irh->subcode = LIO_OPCODE_NW_DATA;
+
+ packet_params.pkt_params32 = 0;
+ packet_params.s.ip_csum = setup->s.ip_csum;
+ packet_params.s.transport_csum = setup->s.transport_csum;
+ packet_params.s.tsflag = setup->s.timestamp;
+
+ irh->ossp = packet_params.pkt_params32;
+}
+