314     HBA_CMD_HEADER *cmdheader = (HBA_CMD_HEADER *)(phys_2_virt(port->clb));  in port_rebase()  local
317         cmdheader[i].prdtl = 8; // 8 prdt entries per command table  in port_rebase()
320 …  cmdheader[i].ctba = virt_2_phys((ahci_port_base_vaddr + (40 << 10) + (portno << 13) + (i << 8)));  in port_rebase()
322         memset((void *)phys_2_virt(cmdheader[i].ctba), 0, 256);  in port_rebase()
348     HBA_CMD_HEADER *cmdheader = (HBA_CMD_HEADER *)phys_2_virt(port->clb);  in ahci_read()  local
349     cmdheader += slot;  in ahci_read()
350     cmdheader->cfl = sizeof(FIS_REG_H2D) / sizeof(uint32_t); // Command FIS size  in ahci_read()
351     cmdheader->w = 0;                                        // Read from device  in ahci_read()
352     cmdheader->prdtl = (uint16_t)((count - 1) >> 4) + 1;     // PRDT entries count  in ahci_read()
354     HBA_CMD_TBL *cmdtbl = (HBA_CMD_TBL *)phys_2_virt(cmdheader->ctba);  in ahci_read()
355     memset(cmdtbl, 0, sizeof(HBA_CMD_TBL) + (cmdheader->prdtl - 1) * sizeof(HBA_PRDT_ENTRY));  in ahci_read()
359     for (i = 0; i < cmdheader->prdtl - 1; ++i)  in ahci_read()
442     HBA_CMD_HEADER *cmdheader = (HBA_CMD_HEADER *)phys_2_virt(port->clb);  in ahci_write()  local
444     cmdheader += slot;  in ahci_write()
445     cmdheader->cfl = sizeof(FIS_REG_H2D) / sizeof(uint32_t); // Command FIS size  in ahci_write()
446     cmdheader->w = 1;  in ahci_write()
447     cmdheader->c = 1;  in ahci_write()
448     cmdheader->p = 1;  in ahci_write()
449     cmdheader->prdtl = (uint16_t)((count - 1) >> 4) + 1; // PRDT entries count  in ahci_write()
451     HBA_CMD_TBL *cmdtbl = (HBA_CMD_TBL *)phys_2_virt(cmdheader->ctba);  in ahci_write()
452     memset(cmdtbl, 0, sizeof(HBA_CMD_TBL) + (cmdheader->prdtl - 1) * sizeof(HBA_PRDT_ENTRY));  in ahci_write()
455     for (i = 0; i < cmdheader->prdtl - 1; ++i)  in ahci_write()