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scsi: 3w-sas: fully convert to the generic DMA API
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The driver is currently using an odd mix of legacy PCI DMA API and
generic DMA API calls, switch it over to the generic API entirely.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Adam Radford <aradford@gmail.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Christoph Hellwig authored and Martin K. Petersen committed Oct 18, 2018
1 parent bd6cf46 commit b1fa122
Showing 1 changed file with 17 additions and 21 deletions.
38 changes: 17 additions & 21 deletions drivers/scsi/3w-sas.c
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Original file line number Diff line number Diff line change
Expand Up @@ -644,8 +644,8 @@ static int twl_allocate_memory(TW_Device_Extension *tw_dev, int size, int which)
unsigned long *cpu_addr;
int retval = 1;

cpu_addr = pci_zalloc_consistent(tw_dev->tw_pci_dev, size * TW_Q_LENGTH,
&dma_handle);
cpu_addr = dma_zalloc_coherent(&tw_dev->tw_pci_dev->dev,
size * TW_Q_LENGTH, &dma_handle, GFP_KERNEL);
if (!cpu_addr) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x5, "Memory allocation failed");
goto out;
Expand Down Expand Up @@ -899,19 +899,19 @@ static int twl_fill_sense(TW_Device_Extension *tw_dev, int i, int request_id, in
static void twl_free_device_extension(TW_Device_Extension *tw_dev)
{
if (tw_dev->command_packet_virt[0])
pci_free_consistent(tw_dev->tw_pci_dev,
dma_free_coherent(&tw_dev->tw_pci_dev->dev,
sizeof(TW_Command_Full)*TW_Q_LENGTH,
tw_dev->command_packet_virt[0],
tw_dev->command_packet_phys[0]);

if (tw_dev->generic_buffer_virt[0])
pci_free_consistent(tw_dev->tw_pci_dev,
dma_free_coherent(&tw_dev->tw_pci_dev->dev,
TW_SECTOR_SIZE*TW_Q_LENGTH,
tw_dev->generic_buffer_virt[0],
tw_dev->generic_buffer_phys[0]);

if (tw_dev->sense_buffer_virt[0])
pci_free_consistent(tw_dev->tw_pci_dev,
dma_free_coherent(&tw_dev->tw_pci_dev->dev,
sizeof(TW_Command_Apache_Header)*
TW_Q_LENGTH,
tw_dev->sense_buffer_virt[0],
Expand Down Expand Up @@ -1571,14 +1571,12 @@ static int twl_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
pci_set_master(pdev);
pci_try_set_mwi(pdev);

if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
|| pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
|| pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
TW_PRINTK(host, TW_DRIVER, 0x18, "Failed to set dma mask");
retval = -ENODEV;
goto out_disable_device;
}
if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) {
TW_PRINTK(host, TW_DRIVER, 0x18, "Failed to set dma mask");
retval = -ENODEV;
goto out_disable_device;
}

host = scsi_host_alloc(&driver_template, sizeof(TW_Device_Extension));
if (!host) {
Expand Down Expand Up @@ -1805,14 +1803,12 @@ static int twl_resume(struct pci_dev *pdev)
pci_set_master(pdev);
pci_try_set_mwi(pdev);

if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
|| pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
|| pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
TW_PRINTK(host, TW_DRIVER, 0x25, "Failed to set dma mask during resume");
retval = -ENODEV;
goto out_disable_device;
}
if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) {
TW_PRINTK(host, TW_DRIVER, 0x25, "Failed to set dma mask during resume");
retval = -ENODEV;
goto out_disable_device;
}

/* Initialize the card */
if (twl_reset_sequence(tw_dev, 0)) {
Expand Down

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