[PATCH 1/2] scsi: megaraid: Remove pci-dma-compat wrapper APIs.

From: Suraj Upadhyay
Date: Sat Jul 18 2020 - 05:57:01 EST

The legacy API wrappers in include/linux/pci-dma-compat.h
should go away as it creates unnecessary midlayering
for include/linux/dma-mapping.h APIs, instead use dma-mapping.h
APIs directly.

The patch has been generated with the coccinelle script below and has
been hand modified to replace GFP_ with correct flags based on the
context.

Compile-tested.

@@@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL

@@@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE

@@@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE

@@@@
- PCI_DMA_NONE
+ DMA_NONE

@@ expression E1, E2, E3; @@
- pci_alloc_consistent(E1, E2, E3)
+ dma_alloc_coherent(&E1->dev, E2, E3, GFP_)

@@ expression E1, E2, E3; @@
- pci_zalloc_consistent(E1, E2, E3)
+ dma_alloc_coherent(&E1->dev, E2, E3, GFP_)

@@ expression E1, E2, E3, E4; @@
- pci_free_consistent(E1, E2, E3, E4)
+ dma_free_coherent(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_map_single(E1, E2, E3, E4)
+ dma_map_single(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_single(E1, E2, E3, E4)
+ dma_unmap_single(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4, E5; @@
- pci_map_page(E1, E2, E3, E4, E5)
+ dma_map_page(&E1->dev, E2, E3, E4, E5)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_page(E1, E2, E3, E4)
+ dma_unmap_page(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_map_sg(E1, E2, E3, E4)
+ dma_map_sg(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_sg(E1, E2, E3, E4)
+ dma_unmap_sg(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_single_for_cpu(E1, E2, E3, E4)
+ dma_sync_single_for_cpu(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_single_for_device(E1, E2, E3, E4)
+ dma_sync_single_for_device(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_sg_for_cpu(E1, E2, E3, E4)
+ dma_sync_sg_for_cpu(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_sg_for_device(E1, E2, E3, E4)
+ dma_sync_sg_for_device(&E1->dev, E2, E3, E4)

@@ expression E1, E2; @@
- pci_dma_mapping_error(E1, E2)
+ dma_mapping_error(&E1->dev, E2)

@@ expression E1, E2; @@
- pci_set_consistent_dma_mask(E1, E2)
+ dma_set_coherent_mask(&E1->dev, E2)

@@ expression E1, E2; @@
- pci_set_dma_mask(E1, E2)
+ dma_set_mask(&E1->dev, E2)

Signed-off-by: Suraj Upadhyay <usuraj35@xxxxxxxxx>
---
drivers/scsi/megaraid.c | 66 ++++++++++++++++++++++-------------------
1 file changed, 36 insertions(+), 30 deletions(-)

diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 0484ee52ae80..16bcdffeab37 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -133,8 +133,10 @@ mega_setup_mailbox(adapter_t *adapter)
{
unsigned long align;

- adapter->una_mbox64 = pci_alloc_consistent(adapter->dev,
- sizeof(mbox64_t), &adapter->una_mbox64_dma);
+ adapter->una_mbox64 = dma_alloc_coherent(&adapter->dev->dev,
+ sizeof(mbox64_t),
+ &adapter->una_mbox64_dma,
+ GFP_KERNEL);

if( !adapter->una_mbox64 ) return -1;

@@ -222,8 +224,9 @@ mega_query_adapter(adapter_t *adapter)
mraid_inquiry *inq;
dma_addr_t dma_handle;

- ext_inq = pci_alloc_consistent(adapter->dev,
- sizeof(mraid_ext_inquiry), &dma_handle);
+ ext_inq = dma_alloc_coherent(&adapter->dev->dev,
+ sizeof(mraid_ext_inquiry),
+ &dma_handle, GFP_KERNEL);

if( ext_inq == NULL ) return -1;

@@ -243,8 +246,9 @@ mega_query_adapter(adapter_t *adapter)
mega_8_to_40ld(inq, inquiry3,
(mega_product_info *)&adapter->product_info);

- pci_free_consistent(adapter->dev, sizeof(mraid_ext_inquiry),
- ext_inq, dma_handle);
+ dma_free_coherent(&adapter->dev->dev,
+ sizeof(mraid_ext_inquiry), ext_inq,
+ dma_handle);

} else { /*adapter supports 40ld */
adapter->flag |= BOARD_40LD;
@@ -253,9 +257,9 @@ mega_query_adapter(adapter_t *adapter)
* get product_info, which is static information and will be
* unchanged
*/
- prod_info_dma_handle = pci_map_single(adapter->dev, (void *)
- &adapter->product_info,
- sizeof(mega_product_info), PCI_DMA_FROMDEVICE);
+ prod_info_dma_handle = dma_map_single(&adapter->dev->dev,
+ (void *)&adapter->product_info,
+ sizeof(mega_product_info), DMA_FROM_DEVICE);

mbox->m_out.xferaddr = prod_info_dma_handle;

@@ -267,8 +271,8 @@ mega_query_adapter(adapter_t *adapter)
"Product_info cmd failed with error: %d\n",
retval);

- pci_unmap_single(adapter->dev, prod_info_dma_handle,
- sizeof(mega_product_info), PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&adapter->dev->dev, prod_info_dma_handle,
+ sizeof(mega_product_info), DMA_FROM_DEVICE);
}


@@ -645,7 +649,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
scb->raw_mbox[2] = MEGA_RESERVATION_STATUS;
scb->raw_mbox[3] = ldrv_num;

- scb->dma_direction = PCI_DMA_NONE;
+ scb->dma_direction = DMA_NONE;

return scb;
#else
@@ -709,7 +713,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU;
}

- scb->dma_direction = PCI_DMA_FROMDEVICE;
+ scb->dma_direction = DMA_FROM_DEVICE;

pthru->numsgelements = mega_build_sglist(adapter, scb,
&pthru->dataxferaddr, &pthru->dataxferlen);
@@ -839,10 +843,10 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
* If it is a read command
*/
if( (*cmd->cmnd & 0x0F) == 0x08 ) {
- scb->dma_direction = PCI_DMA_FROMDEVICE;
+ scb->dma_direction = DMA_FROM_DEVICE;
}
else {
- scb->dma_direction = PCI_DMA_TODEVICE;
+ scb->dma_direction = DMA_TO_DEVICE;
}

/* Calculate Scatter-Gather info */
@@ -877,7 +881,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)

scb->raw_mbox[3] = ldrv_num;

- scb->dma_direction = PCI_DMA_NONE;
+ scb->dma_direction = DMA_NONE;

return scb;
#endif
@@ -971,7 +975,7 @@ mega_prepare_passthru(adapter_t *adapter, scb_t *scb, struct scsi_cmnd *cmd,
memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len);

/* Not sure about the direction */
- scb->dma_direction = PCI_DMA_BIDIRECTIONAL;
+ scb->dma_direction = DMA_BIDIRECTIONAL;

/* Special Code for Handling READ_CAPA/ INQ using bounce buffers */
switch (cmd->cmnd[0]) {
@@ -1035,7 +1039,7 @@ mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb,
memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len);

/* Not sure about the direction */
- scb->dma_direction = PCI_DMA_BIDIRECTIONAL;
+ scb->dma_direction = DMA_BIDIRECTIONAL;

switch(cmd->cmnd[0]) {
case INQUIRY:
@@ -1813,25 +1817,25 @@ mega_free_sgl(adapter_t *adapter)
scb = &adapter->scb_list[i];

if( scb->sgl64 ) {
- pci_free_consistent(adapter->dev,
- sizeof(mega_sgl64) * adapter->sglen,
- scb->sgl64,
- scb->sgl_dma_addr);
+ dma_free_coherent(&adapter->dev->dev,
+ sizeof(mega_sgl64) * adapter->sglen,
+ scb->sgl64, scb->sgl_dma_addr);

scb->sgl64 = NULL;
}

if( scb->pthru ) {
- pci_free_consistent(adapter->dev, sizeof(mega_passthru),
- scb->pthru, scb->pthru_dma_addr);
+ dma_free_coherent(&adapter->dev->dev,
+ sizeof(mega_passthru), scb->pthru,
+ scb->pthru_dma_addr);

scb->pthru = NULL;
}

if( scb->epthru ) {
- pci_free_consistent(adapter->dev,
- sizeof(mega_ext_passthru),
- scb->epthru, scb->epthru_dma_addr);
+ dma_free_coherent(&adapter->dev->dev,
+ sizeof(mega_ext_passthru),
+ scb->epthru, scb->epthru_dma_addr);

scb->epthru = NULL;
}
@@ -2004,7 +2008,7 @@ make_local_pdev(adapter_t *adapter, struct pci_dev **pdev)

memcpy(*pdev, adapter->dev, sizeof(struct pci_dev));

- if( pci_set_dma_mask(*pdev, DMA_BIT_MASK(32)) != 0 ) {
+ if(dma_set_mask(&(*pdev)->dev, DMA_BIT_MASK(32)) != 0 ) {
kfree(*pdev);
return -1;
}
@@ -2028,14 +2032,16 @@ free_local_pdev(struct pci_dev *pdev)
static inline void *
mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev)
{
- return pci_alloc_consistent(pdev, sizeof(mega_inquiry3), dma_handle);
+ return dma_alloc_coherent(&pdev->dev, sizeof(mega_inquiry3),
+ dma_handle, GFP_KERNEL);
}


static inline void
mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev)
{
- pci_free_consistent(pdev, sizeof(mega_inquiry3), inquiry, dma_handle);
+ dma_free_coherent(&pdev->dev, sizeof(mega_inquiry3), inquiry,
+ dma_handle);
}


--
2.17.1

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