diff options
Diffstat (limited to 'drivers/scsi/BusLogic.c')
| -rw-r--r-- | drivers/scsi/BusLogic.c | 51 |
1 files changed, 21 insertions, 30 deletions
diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c index 96f4cab07614..9b206176f717 100644 --- a/drivers/scsi/BusLogic.c +++ b/drivers/scsi/BusLogic.c @@ -304,18 +304,10 @@ static struct BusLogic_CCB *BusLogic_AllocateCCB(struct BusLogic_HostAdapter static void BusLogic_DeallocateCCB(struct BusLogic_CCB *CCB) { struct BusLogic_HostAdapter *HostAdapter = CCB->HostAdapter; - struct scsi_cmnd *cmd = CCB->Command; - if (cmd->use_sg != 0) { - pci_unmap_sg(HostAdapter->PCI_Device, - (struct scatterlist *)cmd->request_buffer, - cmd->use_sg, cmd->sc_data_direction); - } else if (cmd->request_bufflen != 0) { - pci_unmap_single(HostAdapter->PCI_Device, CCB->DataPointer, - CCB->DataLength, cmd->sc_data_direction); - } + scsi_dma_unmap(CCB->Command); pci_unmap_single(HostAdapter->PCI_Device, CCB->SenseDataPointer, - CCB->SenseDataLength, PCI_DMA_FROMDEVICE); + CCB->SenseDataLength, PCI_DMA_FROMDEVICE); CCB->Command = NULL; CCB->Status = BusLogic_CCB_Free; @@ -2648,7 +2640,8 @@ static void BusLogic_ProcessCompletedCCBs(struct BusLogic_HostAdapter *HostAdapt */ if (CCB->CDB[0] == INQUIRY && CCB->CDB[1] == 0 && CCB->HostAdapterStatus == BusLogic_CommandCompletedNormally) { struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[CCB->TargetID]; - struct SCSI_Inquiry *InquiryResult = (struct SCSI_Inquiry *) Command->request_buffer; + struct SCSI_Inquiry *InquiryResult = + (struct SCSI_Inquiry *) scsi_sglist(Command); TargetFlags->TargetExists = true; TargetFlags->TaggedQueuingSupported = InquiryResult->CmdQue; TargetFlags->WideTransfersSupported = InquiryResult->WBus16; @@ -2819,9 +2812,8 @@ static int BusLogic_QueueCommand(struct scsi_cmnd *Command, void (*CompletionRou int CDB_Length = Command->cmd_len; int TargetID = Command->device->id; int LogicalUnit = Command->device->lun; - void *BufferPointer = Command->request_buffer; - int BufferLength = Command->request_bufflen; - int SegmentCount = Command->use_sg; + int BufferLength = scsi_bufflen(Command); + int Count; struct BusLogic_CCB *CCB; /* SCSI REQUEST_SENSE commands will be executed automatically by the Host @@ -2851,36 +2843,35 @@ static int BusLogic_QueueCommand(struct scsi_cmnd *Command, void (*CompletionRou return 0; } } + /* Initialize the fields in the BusLogic Command Control Block (CCB). */ - if (SegmentCount == 0 && BufferLength != 0) { - CCB->Opcode = BusLogic_InitiatorCCB; - CCB->DataLength = BufferLength; - CCB->DataPointer = pci_map_single(HostAdapter->PCI_Device, - BufferPointer, BufferLength, - Command->sc_data_direction); - } else if (SegmentCount != 0) { - struct scatterlist *ScatterList = (struct scatterlist *) BufferPointer; - int Segment, Count; - - Count = pci_map_sg(HostAdapter->PCI_Device, ScatterList, SegmentCount, - Command->sc_data_direction); + Count = scsi_dma_map(Command); + BUG_ON(Count < 0); + if (Count) { + struct scatterlist *sg; + int i; + CCB->Opcode = BusLogic_InitiatorCCB_ScatterGather; CCB->DataLength = Count * sizeof(struct BusLogic_ScatterGatherSegment); if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) CCB->DataPointer = (unsigned int) CCB->DMA_Handle + ((unsigned long) &CCB->ScatterGatherList - (unsigned long) CCB); else CCB->DataPointer = Virtual_to_32Bit_Virtual(CCB->ScatterGatherList); - for (Segment = 0; Segment < Count; Segment++) { - CCB->ScatterGatherList[Segment].SegmentByteCount = sg_dma_len(ScatterList + Segment); - CCB->ScatterGatherList[Segment].SegmentDataPointer = sg_dma_address(ScatterList + Segment); + + scsi_for_each_sg(Command, sg, Count, i) { + CCB->ScatterGatherList[i].SegmentByteCount = + sg_dma_len(sg); + CCB->ScatterGatherList[i].SegmentDataPointer = + sg_dma_address(sg); } - } else { + } else if (!Count) { CCB->Opcode = BusLogic_InitiatorCCB; CCB->DataLength = BufferLength; CCB->DataPointer = 0; } + switch (CDB[0]) { case READ_6: case READ_10: |