+ raw = (uint8_t *)(uintptr_t)&wqe->eseg.inline_hdr[0];
+ /* Start the know and common part of the WQE structure. */
+ wqe->ctrl[0] = htonl((txq->wqe_ci << 8) | MLX5_OPCODE_SEND);
+ wqe->ctrl[2] = 0;
+ wqe->ctrl[3] = 0;
+ wqe->eseg.rsvd0 = 0;
+ wqe->eseg.rsvd1 = 0;
+ wqe->eseg.mss = 0;
+ wqe->eseg.rsvd2 = 0;
+ /* Start by copying the Ethernet Header. */
+ rte_mov16((uint8_t *)raw, (uint8_t *)addr);
+ length -= MLX5_WQE_DWORD_SIZE;
+ addr += MLX5_WQE_DWORD_SIZE;
+ /* Replace the Ethernet type by the VLAN if necessary. */
+ if (buf->ol_flags & PKT_TX_VLAN_PKT) {
+ uint32_t vlan = htonl(0x81000000 | buf->vlan_tci);
+
+ memcpy((uint8_t *)(raw + MLX5_WQE_DWORD_SIZE -
+ sizeof(vlan)),
+ &vlan, sizeof(vlan));
+ addr -= sizeof(vlan);
+ length += sizeof(vlan);
+ }
+ /* Inline if enough room. */
+ if (txq->max_inline != 0) {
+ uintptr_t end =
+ (uintptr_t)&(*txq->wqes)[1 << txq->wqe_n];
+ uint16_t max_inline =
+ txq->max_inline * RTE_CACHE_LINE_SIZE;
+ uint16_t pkt_inline_sz = MLX5_WQE_DWORD_SIZE;
+ uint16_t room;
+
+ raw += MLX5_WQE_DWORD_SIZE;
+ room = end - (uintptr_t)raw;
+ if (room > max_inline) {
+ uintptr_t addr_end = (addr + max_inline) &
+ ~(RTE_CACHE_LINE_SIZE - 1);
+ uint16_t copy_b = ((addr_end - addr) > length) ?
+ length :
+ (addr_end - addr);
+
+ rte_memcpy((void *)raw, (void *)addr, copy_b);
+ addr += copy_b;
+ length -= copy_b;
+ pkt_inline_sz += copy_b;
+ /* Sanity check. */
+ assert(addr <= addr_end);
+ }
+ /* Store the inlined packet size in the WQE. */
+ wqe->eseg.inline_hdr_sz = htons(pkt_inline_sz);
+ /*
+ * 2 DWORDs consumed by the WQE header + 1 DSEG +
+ * the size of the inline part of the packet.
+ */
+ ds = 2 + MLX5_WQE_DS(pkt_inline_sz - 2);
+ if (length > 0) {
+ dseg = (struct mlx5_wqe_data_seg *)
+ ((uintptr_t)wqe +
+ (ds * MLX5_WQE_DWORD_SIZE));
+ if ((uintptr_t)dseg >= end)
+ dseg = (struct mlx5_wqe_data_seg *)
+ ((uintptr_t)&(*txq->wqes)[0]);
+ goto use_dseg;
+ } else if (!segs_n) {
+ goto next_pkt;
+ } else {
+ goto next_seg;
+ }
+ } else {
+ /*
+ * No inline has been done in the packet, only the
+ * Ethernet Header as been stored.
+ */
+ wqe->eseg.inline_hdr_sz = htons(MLX5_WQE_DWORD_SIZE);
+ dseg = (struct mlx5_wqe_data_seg *)
+ ((uintptr_t)wqe + (3 * MLX5_WQE_DWORD_SIZE));
+ ds = 3;
+use_dseg:
+ /* Add the remaining packet as a simple ds. */
+ *dseg = (struct mlx5_wqe_data_seg) {
+ .addr = htonll(addr),
+ .byte_count = htonl(length),
+ .lkey = txq_mp2mr(txq, txq_mb2mp(buf)),
+ };
+ ++ds;
+ if (!segs_n)
+ goto next_pkt;
+ }
+next_seg:
+ assert(buf);
+ assert(ds);
+ assert(wqe);
+ /*
+ * Spill on next WQE when the current one does not have
+ * enough room left. Size of WQE must a be a multiple
+ * of data segment size.
+ */
+ assert(!(MLX5_WQE_SIZE % MLX5_WQE_DWORD_SIZE));
+ if (!(ds % (MLX5_WQE_SIZE / MLX5_WQE_DWORD_SIZE))) {
+ unsigned int n = (txq->wqe_ci + ((ds + 3) / 4)) &
+ ((1 << txq->wqe_n) - 1);