- dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
- "command packet data - b %i, t %i, l %i \n",
- SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
- SCSI_LUN_32(cmd));
- qla1280_dump_buffer(5, (char *)pkt,
- REQUEST_ENTRY_SIZE);
-
- /*
- * Build continuation packets.
- */
- dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
- "remains\n", seg_cnt);
-
- while (remseg > 0) {
- /* Update sg start */
- sg = s;
- /* Adjust ring index. */
- ha->req_ring_index++;
- if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
- ha->req_ring_index = 0;
- ha->request_ring_ptr =
- ha->request_ring;
- } else
- ha->request_ring_ptr++;
-
- pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
-
- /* Zero out packet. */
- memset(pkt, 0, REQUEST_ENTRY_SIZE);
-
- /* Load packet defaults. */
- ((struct cont_a64_entry *) pkt)->entry_type =
- CONTINUE_A64_TYPE;
- ((struct cont_a64_entry *) pkt)->entry_count = 1;
- ((struct cont_a64_entry *) pkt)->sys_define =
- (uint8_t)ha->req_ring_index;
- /* Setup packet address segment pointer. */
- dword_ptr =
- (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
-
- /* Load continuation entry data segments. */
- for_each_sg(sg, s, remseg, cnt) {
- if (cnt == 5)
- break;
- dma_handle = sg_dma_address(s);
-#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
- if (ha->flags.use_pci_vchannel)
- sn_pci_set_vchan(ha->pdev,
- (unsigned long *)&dma_handle,
- SCSI_BUS_32(cmd));
-#endif
- *dword_ptr++ =
- cpu_to_le32(pci_dma_lo32(dma_handle));
- *dword_ptr++ =
- cpu_to_le32(pci_dma_hi32(dma_handle));
- *dword_ptr++ =
- cpu_to_le32(sg_dma_len(s));
- dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
- cpu_to_le32(pci_dma_hi32(dma_handle)),
- cpu_to_le32(pci_dma_lo32(dma_handle)),
- cpu_to_le32(sg_dma_len(s)));
- }
- remseg -= cnt;
- dprintk(5, "qla1280_64bit_start_scsi: "
- "continuation packet data - b %i, t "
- "%i, l %i \n", SCSI_BUS_32(cmd),
- SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
- qla1280_dump_buffer(5, (char *)pkt,
- REQUEST_ENTRY_SIZE);
- }
- } else { /* No scatter gather data transfer */
- dma_handle = pci_map_single(ha->pdev,
- cmd->request_buffer,
- cmd->request_bufflen,
- cmd->sc_data_direction);
-
- sp->saved_dma_handle = dma_handle;
-#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
- if (ha->flags.use_pci_vchannel)
- sn_pci_set_vchan(ha->pdev,
- (unsigned long *)&dma_handle,
- SCSI_BUS_32(cmd));
-#endif
- *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle));
- *dword_ptr++ = cpu_to_le32(pci_dma_hi32(dma_handle));
- *dword_ptr = cpu_to_le32(cmd->request_bufflen);
-
- dprintk(5, "qla1280_64bit_start_scsi: No scatter/"
- "gather command packet data - b %i, t %i, "
- "l %i \n", SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
- SCSI_LUN_32(cmd));