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scsi: gdth: use generic DMA API

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Switch from the legacy PCI DMA API to the generic DMA API.  Also switch
to dma_map_single from pci_map_page in one case where this makes the code
simpler.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig 2018-12-12 08:41:27 +01:00 committed by Martin K. Petersen
parent d8e1e6add2
commit bb327df832
2 changed files with 31 additions and 33 deletions
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60
drivers/scsi/gdth.c
View File

@ -2077,9 +2077,9 @@ static int gdth_fill_cache_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp,
if (scsi_bufflen(scp)) {
cmndinfo->dma_dir = (read_write == 1 ?
PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
sgcnt = pci_map_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
cmndinfo->dma_dir);
DMA_TO_DEVICE : DMA_FROM_DEVICE);
sgcnt = dma_map_sg(&ha->pdev->dev, scsi_sglist(scp),
scsi_sg_count(scp), cmndinfo->dma_dir);
if (mode64) {
struct scatterlist *sl;
@ -2153,8 +2153,6 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp, u8 b)
dma_addr_t sense_paddr;
int cmd_index, sgcnt, mode64;
u8 t,l;
struct page *page;
unsigned long offset;
struct gdth_cmndinfo *cmndinfo;
t = scp->device->id;
@ -2196,10 +2194,8 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp, u8 b)
}
} else {
page = virt_to_page(scp->sense_buffer);
offset = (unsigned long)scp->sense_buffer & ~PAGE_MASK;
sense_paddr = pci_map_page(ha->pdev,page,offset,
16,PCI_DMA_FROMDEVICE);
sense_paddr = dma_map_single(&ha->pdev->dev, scp->sense_buffer, 16,
DMA_FROM_DEVICE);
cmndinfo->sense_paddr = sense_paddr;
cmdp->OpCode = GDT_WRITE; /* always */
@ -2240,9 +2236,9 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp, u8 b)
}
if (scsi_bufflen(scp)) {
cmndinfo->dma_dir = PCI_DMA_BIDIRECTIONAL;
sgcnt = pci_map_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
cmndinfo->dma_dir);
cmndinfo->dma_dir = DMA_BIDIRECTIONAL;
sgcnt = dma_map_sg(&ha->pdev->dev, scsi_sglist(scp),
scsi_sg_count(scp), cmndinfo->dma_dir);
if (mode64) {
struct scatterlist *sl;
@ -2750,12 +2746,12 @@ static int gdth_sync_event(gdth_ha_str *ha, int service, u8 index,
return 2;
}
if (scsi_bufflen(scp))
pci_unmap_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
dma_unmap_sg(&ha->pdev->dev, scsi_sglist(scp), scsi_sg_count(scp),
cmndinfo->dma_dir);
if (cmndinfo->sense_paddr)
pci_unmap_page(ha->pdev, cmndinfo->sense_paddr, 16,
PCI_DMA_FROMDEVICE);
dma_unmap_page(&ha->pdev->dev, cmndinfo->sense_paddr, 16,
DMA_FROM_DEVICE);
if (ha->status == S_OK) {
cmndinfo->status = S_OK;
@ -3664,8 +3660,9 @@ static int ioc_general(void __user *arg, char *cmnd)
return -EINVAL;
if (gen.data_len + gen.sense_len > 0) {
buf = pci_alloc_consistent(ha->pdev,
gen.data_len + gen.sense_len, &paddr);
buf = dma_alloc_coherent(&ha->pdev->dev,
gen.data_len + gen.sense_len, &paddr,
GFP_KERNEL);
if (!buf)
return -EFAULT;
@ -3700,7 +3697,8 @@ static int ioc_general(void __user *arg, char *cmnd)
rval = 0;
out_free_buf:
pci_free_consistent(ha->pdev, gen.data_len + gen.sense_len, buf, paddr);
dma_free_coherent(&ha->pdev->dev, gen.data_len + gen.sense_len, buf,
paddr);
return rval;
}
@ -4144,14 +4142,14 @@ static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out)
error = -ENOMEM;
ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
&scratch_dma_handle);
ha->pscratch = dma_alloc_coherent(&ha->pdev->dev, GDTH_SCRATCH,
&scratch_dma_handle, GFP_KERNEL);
if (!ha->pscratch)
goto out_free_irq;
ha->scratch_phys = scratch_dma_handle;
ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
&scratch_dma_handle);
ha->pmsg = dma_alloc_coherent(&ha->pdev->dev, sizeof(gdth_msg_str),
&scratch_dma_handle, GFP_KERNEL);
if (!ha->pmsg)
goto out_free_pscratch;
ha->msg_phys = scratch_dma_handle;
@ -4178,16 +4176,16 @@ static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out)
/* 64-bit DMA only supported from FW >= x.43 */
if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT) ||
!ha->dma64_support) {
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
printk(KERN_WARNING "GDT-PCI %d: "
"Unable to set 32-bit DMA\n", ha->hanum);
goto out_free_pmsg;
}
} else {
shp->max_cmd_len = 16;
if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
printk("GDT-PCI %d: 64-bit DMA enabled\n", ha->hanum);
} else if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
} else if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
printk(KERN_WARNING "GDT-PCI %d: "
"Unable to set 64/32-bit DMA\n", ha->hanum);
goto out_free_pmsg;
@ -4216,10 +4214,10 @@ static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out)
return 0;
out_free_pmsg:
pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
dma_free_coherent(&ha->pdev->dev, sizeof(gdth_msg_str),
ha->pmsg, ha->msg_phys);
out_free_pscratch:
pci_free_consistent(ha->pdev, GDTH_SCRATCH,
dma_free_coherent(&ha->pdev->dev, GDTH_SCRATCH,
ha->pscratch, ha->scratch_phys);
out_free_irq:
free_irq(ha->irq, ha);
@ -4248,14 +4246,14 @@ static void gdth_remove_one(gdth_ha_str *ha)
free_irq(shp->irq,ha);
if (ha->pscratch)
pci_free_consistent(ha->pdev, GDTH_SCRATCH,
dma_free_coherent(&ha->pdev->dev, GDTH_SCRATCH,
ha->pscratch, ha->scratch_phys);
if (ha->pmsg)
pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
dma_free_coherent(&ha->pdev->dev, sizeof(gdth_msg_str),
ha->pmsg, ha->msg_phys);
if (ha->ccb_phys)
pci_unmap_single(ha->pdev,ha->ccb_phys,
sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
dma_unmap_single(&ha->pdev->dev, ha->ccb_phys,
sizeof(gdth_cmd_str), DMA_BIDIRECTIONAL);
scsi_host_put(shp);
}

4
drivers/scsi/gdth_proc.c
View File

@ -236,7 +236,7 @@ int gdth_show_info(struct seq_file *m, struct Scsi_Host *host)
seq_puts(m, "\nPhysical Devices:");
flag = FALSE;
buf = pci_alloc_consistent(ha->pdev, size, &paddr);
buf = dma_alloc_coherent(&ha->pdev->dev, size, &paddr, GFP_KERNEL);
if (!buf)
goto stop_output;
for (i = 0; i < ha->bus_cnt; ++i) {
@ -504,7 +504,7 @@ int gdth_show_info(struct seq_file *m, struct Scsi_Host *host)
}
}
}
pci_free_consistent(ha->pdev, size, buf, paddr);
dma_free_coherent(&ha->pdev->dev, size, buf, paddr);
for (i = 0; i < MAX_HDRIVES; ++i) {
if (!(ha->hdr[i].present))