[PATCH] RDMA: switch from 'pci_' to 'dma_' API
From: Christophe JAILLET
Date: Sun Aug 22 2021 - 08:24:52 EST
The wrappers in include/linux/pci-dma-compat.h should go away.
The patch has been generated with the coccinelle script below.
It has been hand modified to use 'dma_set_mask_and_coherent()' instead of
'pci_set_dma_mask()/pci_set_consistent_dma_mask()' when applicable.
This is less verbose.
It has been 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_dma_mask(e1, e2)
+ dma_set_mask(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_consistent_dma_mask(e1, e2)
+ dma_set_coherent_mask(&e1->dev, e2)
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
If needed, see post from Christoph Hellwig on the kernel-janitors ML:
https://marc.info/?l=kernel-janitors&m=158745678307186&w=4
This patch is mostly mechanical and compile tested. I hope it is ok to
update the "drivers/infiniband/hw/" directory all at once.
---
drivers/infiniband/hw/hfi1/pcie.c | 11 ++-------
drivers/infiniband/hw/hfi1/user_exp_rcv.c | 13 +++++------
drivers/infiniband/hw/mthca/mthca_eq.c | 21 +++++++++--------
drivers/infiniband/hw/mthca/mthca_main.c | 15 ++----------
drivers/infiniband/hw/mthca/mthca_memfree.c | 23 +++++++++++--------
drivers/infiniband/hw/qib/qib_file_ops.c | 12 +++++-----
drivers/infiniband/hw/qib/qib_init.c | 4 ++--
drivers/infiniband/hw/qib/qib_user_pages.c | 12 +++++-----
.../infiniband/hw/vmw_pvrdma/pvrdma_main.c | 14 +++--------
9 files changed, 51 insertions(+), 74 deletions(-)
diff --git a/drivers/infiniband/hw/hfi1/pcie.c b/drivers/infiniband/hw/hfi1/pcie.c
index 6f06e9920503..b29242abedd1 100644
--- a/drivers/infiniband/hw/hfi1/pcie.c
+++ b/drivers/infiniband/hw/hfi1/pcie.c
@@ -92,25 +92,18 @@ int hfi1_pcie_init(struct hfi1_devdata *dd)
goto bail;
}
- ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+ ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (ret) {
/*
* If the 64 bit setup fails, try 32 bit. Some systems
* do not setup 64 bit maps on systems with 2GB or less
* memory installed.
*/
- ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (ret) {
dd_dev_err(dd, "Unable to set DMA mask: %d\n", ret);
goto bail;
}
- ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- } else {
- ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
- }
- if (ret) {
- dd_dev_err(dd, "Unable to set DMA consistent mask: %d\n", ret);
- goto bail;
}
pci_set_master(pdev);
diff --git a/drivers/infiniband/hw/hfi1/user_exp_rcv.c b/drivers/infiniband/hw/hfi1/user_exp_rcv.c
index 58dcab2679d9..e9e8239397a3 100644
--- a/drivers/infiniband/hw/hfi1/user_exp_rcv.c
+++ b/drivers/infiniband/hw/hfi1/user_exp_rcv.c
@@ -177,8 +177,8 @@ static void unpin_rcv_pages(struct hfi1_filedata *fd,
struct mm_struct *mm;
if (mapped) {
- pci_unmap_single(dd->pcidev, node->dma_addr,
- node->npages * PAGE_SIZE, PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&dd->pcidev->dev, node->dma_addr,
+ node->npages * PAGE_SIZE, DMA_FROM_DEVICE);
pages = &node->pages[idx];
mm = mm_from_tid_node(node);
} else {
@@ -739,9 +739,8 @@ static int set_rcvarray_entry(struct hfi1_filedata *fd,
if (!node)
return -ENOMEM;
- phys = pci_map_single(dd->pcidev,
- __va(page_to_phys(pages[0])),
- npages * PAGE_SIZE, PCI_DMA_FROMDEVICE);
+ phys = dma_map_single(&dd->pcidev->dev, __va(page_to_phys(pages[0])),
+ npages * PAGE_SIZE, DMA_FROM_DEVICE);
if (dma_mapping_error(&dd->pcidev->dev, phys)) {
dd_dev_err(dd, "Failed to DMA map Exp Rcv pages 0x%llx\n",
phys);
@@ -783,8 +782,8 @@ static int set_rcvarray_entry(struct hfi1_filedata *fd,
hfi1_cdbg(TID, "Failed to insert RB node %u 0x%lx, 0x%lx %d",
node->rcventry, node->notifier.interval_tree.start,
node->phys, ret);
- pci_unmap_single(dd->pcidev, phys, npages * PAGE_SIZE,
- PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&dd->pcidev->dev, phys, npages * PAGE_SIZE,
+ DMA_FROM_DEVICE);
kfree(node);
return -EFAULT;
}
diff --git a/drivers/infiniband/hw/mthca/mthca_eq.c b/drivers/infiniband/hw/mthca/mthca_eq.c
index 2cdf686203c1..9f311bd22f72 100644
--- a/drivers/infiniband/hw/mthca/mthca_eq.c
+++ b/drivers/infiniband/hw/mthca/mthca_eq.c
@@ -617,9 +617,9 @@ static void mthca_free_eq(struct mthca_dev *dev,
mthca_free_mr(dev, &eq->mr);
for (i = 0; i < npages; ++i)
- pci_free_consistent(dev->pdev, PAGE_SIZE,
- eq->page_list[i].buf,
- dma_unmap_addr(&eq->page_list[i], mapping));
+ dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
+ eq->page_list[i].buf,
+ dma_unmap_addr(&eq->page_list[i], mapping));
kfree(eq->page_list);
mthca_free_mailbox(dev, mailbox);
@@ -739,17 +739,18 @@ int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt)
dev->eq_table.icm_page = alloc_page(GFP_HIGHUSER);
if (!dev->eq_table.icm_page)
return -ENOMEM;
- dev->eq_table.icm_dma = pci_map_page(dev->pdev, dev->eq_table.icm_page, 0,
- PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
- if (pci_dma_mapping_error(dev->pdev, dev->eq_table.icm_dma)) {
+ dev->eq_table.icm_dma = dma_map_page(&dev->pdev->dev,
+ dev->eq_table.icm_page, 0,
+ PAGE_SIZE, DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(&dev->pdev->dev, dev->eq_table.icm_dma)) {
__free_page(dev->eq_table.icm_page);
return -ENOMEM;
}
ret = mthca_MAP_ICM_page(dev, dev->eq_table.icm_dma, icm_virt);
if (ret) {
- pci_unmap_page(dev->pdev, dev->eq_table.icm_dma, PAGE_SIZE,
- PCI_DMA_BIDIRECTIONAL);
+ dma_unmap_page(&dev->pdev->dev, dev->eq_table.icm_dma,
+ PAGE_SIZE, DMA_BIDIRECTIONAL);
__free_page(dev->eq_table.icm_page);
}
@@ -759,8 +760,8 @@ int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt)
void mthca_unmap_eq_icm(struct mthca_dev *dev)
{
mthca_UNMAP_ICM(dev, dev->eq_table.icm_virt, 1);
- pci_unmap_page(dev->pdev, dev->eq_table.icm_dma, PAGE_SIZE,
- PCI_DMA_BIDIRECTIONAL);
+ dma_unmap_page(&dev->pdev->dev, dev->eq_table.icm_dma, PAGE_SIZE,
+ DMA_BIDIRECTIONAL);
__free_page(dev->eq_table.icm_page);
}
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index fe9654a7af71..f507c4cd46d3 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -937,26 +937,15 @@ static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
pci_set_master(pdev);
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (err) {
dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (err) {
dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
goto err_free_res;
}
}
- err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
- if (err) {
- dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
- "consistent PCI DMA mask.\n");
- err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
- "aborting.\n");
- goto err_free_res;
- }
- }
/* We can handle large RDMA requests, so allow larger segments. */
dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c
index fa808582b08b..215a01b24258 100644
--- a/drivers/infiniband/hw/mthca/mthca_memfree.c
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.c
@@ -66,8 +66,8 @@ static void mthca_free_icm_pages(struct mthca_dev *dev, struct mthca_icm_chunk *
int i;
if (chunk->nsg > 0)
- pci_unmap_sg(dev->pdev, chunk->mem, chunk->npages,
- PCI_DMA_BIDIRECTIONAL);
+ dma_unmap_sg(&dev->pdev->dev, chunk->mem, chunk->npages,
+ DMA_BIDIRECTIONAL);
for (i = 0; i < chunk->npages; ++i)
__free_pages(sg_page(&chunk->mem[i]),
@@ -184,9 +184,10 @@ struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages,
if (coherent)
++chunk->nsg;
else if (chunk->npages == MTHCA_ICM_CHUNK_LEN) {
- chunk->nsg = pci_map_sg(dev->pdev, chunk->mem,
+ chunk->nsg = dma_map_sg(&dev->pdev->dev,
+ chunk->mem,
chunk->npages,
- PCI_DMA_BIDIRECTIONAL);
+ DMA_BIDIRECTIONAL);
if (chunk->nsg <= 0)
goto fail;
@@ -204,9 +205,8 @@ struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages,
}
if (!coherent && chunk) {
- chunk->nsg = pci_map_sg(dev->pdev, chunk->mem,
- chunk->npages,
- PCI_DMA_BIDIRECTIONAL);
+ chunk->nsg = dma_map_sg(&dev->pdev->dev, chunk->mem,
+ chunk->npages, DMA_BIDIRECTIONAL);
if (chunk->nsg <= 0)
goto fail;
@@ -480,7 +480,8 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
sg_set_page(&db_tab->page[i].mem, pages[0], MTHCA_ICM_PAGE_SIZE,
uaddr & ~PAGE_MASK);
- ret = pci_map_sg(dev->pdev, &db_tab->page[i].mem, 1, PCI_DMA_TODEVICE);
+ ret = dma_map_sg(&dev->pdev->dev, &db_tab->page[i].mem, 1,
+ DMA_TO_DEVICE);
if (ret < 0) {
unpin_user_page(pages[0]);
goto out;
@@ -489,7 +490,8 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
ret = mthca_MAP_ICM_page(dev, sg_dma_address(&db_tab->page[i].mem),
mthca_uarc_virt(dev, uar, i));
if (ret) {
- pci_unmap_sg(dev->pdev, &db_tab->page[i].mem, 1, PCI_DMA_TODEVICE);
+ dma_unmap_sg(&dev->pdev->dev, &db_tab->page[i].mem, 1,
+ DMA_TO_DEVICE);
unpin_user_page(sg_page(&db_tab->page[i].mem));
goto out;
}
@@ -555,7 +557,8 @@ void mthca_cleanup_user_db_tab(struct mthca_dev *dev, struct mthca_uar *uar,
for (i = 0; i < dev->uar_table.uarc_size / MTHCA_ICM_PAGE_SIZE; ++i) {
if (db_tab->page[i].uvirt) {
mthca_UNMAP_ICM(dev, mthca_uarc_virt(dev, uar, i), 1);
- pci_unmap_sg(dev->pdev, &db_tab->page[i].mem, 1, PCI_DMA_TODEVICE);
+ dma_unmap_sg(&dev->pdev->dev, &db_tab->page[i].mem, 1,
+ DMA_TO_DEVICE);
unpin_user_page(sg_page(&db_tab->page[i].mem));
}
}
diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index c60e79d214a1..63854f4b6524 100644
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -429,8 +429,8 @@ static int qib_tid_update(struct qib_ctxtdata *rcd, struct file *fp,
dd->f_put_tid(dd, &tidbase[tid],
RCVHQ_RCV_TYPE_EXPECTED,
dd->tidinvalid);
- pci_unmap_page(dd->pcidev, phys, PAGE_SIZE,
- PCI_DMA_FROMDEVICE);
+ dma_unmap_page(&dd->pcidev->dev, phys,
+ PAGE_SIZE, DMA_FROM_DEVICE);
dd->pageshadow[ctxttid + tid] = NULL;
}
}
@@ -544,8 +544,8 @@ static int qib_tid_free(struct qib_ctxtdata *rcd, unsigned subctxt,
*/
dd->f_put_tid(dd, &tidbase[tid],
RCVHQ_RCV_TYPE_EXPECTED, dd->tidinvalid);
- pci_unmap_page(dd->pcidev, phys, PAGE_SIZE,
- PCI_DMA_FROMDEVICE);
+ dma_unmap_page(&dd->pcidev->dev, phys, PAGE_SIZE,
+ DMA_FROM_DEVICE);
qib_release_user_pages(&p, 1);
}
}
@@ -1781,8 +1781,8 @@ static void unlock_expected_tids(struct qib_ctxtdata *rcd)
phys = dd->physshadow[i];
dd->physshadow[i] = dd->tidinvalid;
dd->pageshadow[i] = NULL;
- pci_unmap_page(dd->pcidev, phys, PAGE_SIZE,
- PCI_DMA_FROMDEVICE);
+ dma_unmap_page(&dd->pcidev->dev, phys, PAGE_SIZE,
+ DMA_FROM_DEVICE);
qib_release_user_pages(&p, 1);
cnt++;
}
diff --git a/drivers/infiniband/hw/qib/qib_init.c b/drivers/infiniband/hw/qib/qib_init.c
index b5a78576c48b..d1a72e89e297 100644
--- a/drivers/infiniband/hw/qib/qib_init.c
+++ b/drivers/infiniband/hw/qib/qib_init.c
@@ -1335,8 +1335,8 @@ static void cleanup_device_data(struct qib_devdata *dd)
for (i = ctxt_tidbase; i < maxtid; i++) {
if (!tmpp[i])
continue;
- pci_unmap_page(dd->pcidev, tmpd[i],
- PAGE_SIZE, PCI_DMA_FROMDEVICE);
+ dma_unmap_page(&dd->pcidev->dev, tmpd[i],
+ PAGE_SIZE, DMA_FROM_DEVICE);
qib_release_user_pages(&tmpp[i], 1);
tmpp[i] = NULL;
}
diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c
index 5d6cf7427431..f4b5f05058e4 100644
--- a/drivers/infiniband/hw/qib/qib_user_pages.c
+++ b/drivers/infiniband/hw/qib/qib_user_pages.c
@@ -60,15 +60,15 @@ int qib_map_page(struct pci_dev *hwdev, struct page *page, dma_addr_t *daddr)
{
dma_addr_t phys;
- phys = pci_map_page(hwdev, page, 0, PAGE_SIZE, PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(hwdev, phys))
+ phys = dma_map_page(&hwdev->dev, page, 0, PAGE_SIZE, DMA_FROM_DEVICE);
+ if (dma_mapping_error(&hwdev->dev, phys))
return -ENOMEM;
if (!phys) {
- pci_unmap_page(hwdev, phys, PAGE_SIZE, PCI_DMA_FROMDEVICE);
- phys = pci_map_page(hwdev, page, 0, PAGE_SIZE,
- PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(hwdev, phys))
+ dma_unmap_page(&hwdev->dev, phys, PAGE_SIZE, DMA_FROM_DEVICE);
+ phys = dma_map_page(&hwdev->dev, page, 0, PAGE_SIZE,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(&hwdev->dev, phys))
return -ENOMEM;
/*
* FIXME: If we get 0 again, we should keep this page,
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
index b39175837d58..105f3a155939 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
@@ -811,18 +811,10 @@ static int pvrdma_pci_probe(struct pci_dev *pdev,
}
/* Enable 64-Bit DMA */
- if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) == 0) {
- ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+ if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) != 0) {
+ ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret != 0) {
- dev_err(&pdev->dev,
- "pci_set_consistent_dma_mask failed\n");
- goto err_free_resource;
- }
- } else {
- ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (ret != 0) {
- dev_err(&pdev->dev,
- "pci_set_dma_mask failed\n");
+ dev_err(&pdev->dev, "dma_set_mask failed\n");
goto err_free_resource;
}
}
--
2.30.2