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[SG] Update drivers to use sg helpers

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Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe
2007-10-22 21:19:53 +02:00
parent 78c2f0b8c2
commit 45711f1af6
82 changed files with 278 additions and 275 deletions
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24
drivers/infiniband/hw/mthca/mthca_memfree.c
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@@ -71,7 +71,7 @@ static void mthca_free_icm_pages(struct mthca_dev *dev, struct mthca_icm_chunk *
PCI_DMA_BIDIRECTIONAL);
for (i = 0; i < chunk->npages; ++i)
__free_pages(chunk->mem[i].page,
__free_pages(sg_page(&chunk->mem[i]),
get_order(chunk->mem[i].length));
}
@@ -81,7 +81,7 @@ static void mthca_free_icm_coherent(struct mthca_dev *dev, struct mthca_icm_chun
for (i = 0; i < chunk->npages; ++i) {
dma_free_coherent(&dev->pdev->dev, chunk->mem[i].length,
lowmem_page_address(chunk->mem[i].page),
lowmem_page_address(sg_page(&chunk->mem[i])),
sg_dma_address(&chunk->mem[i]));
}
}
@@ -107,10 +107,13 @@ void mthca_free_icm(struct mthca_dev *dev, struct mthca_icm *icm, int coherent)
static int mthca_alloc_icm_pages(struct scatterlist *mem, int order, gfp_t gfp_mask)
{
mem->page = alloc_pages(gfp_mask, order);
if (!mem->page)
struct page *page;
page = alloc_pages(gfp_mask, order);
if (!page)
return -ENOMEM;
sg_set_page(mem, page);
mem->length = PAGE_SIZE << order;
mem->offset = 0;
return 0;
@@ -157,6 +160,7 @@ struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages,
if (!chunk)
goto fail;
sg_init_table(chunk->mem, MTHCA_ICM_CHUNK_LEN);
chunk->npages = 0;
chunk->nsg = 0;
list_add_tail(&chunk->list, &icm->chunk_list);
@@ -304,7 +308,7 @@ void *mthca_table_find(struct mthca_icm_table *table, int obj, dma_addr_t *dma_h
* so if we found the page, dma_handle has already
* been assigned to. */
if (chunk->mem[i].length > offset) {
page = chunk->mem[i].page;
page = sg_page(&chunk->mem[i]);
goto out;
}
offset -= chunk->mem[i].length;
@@ -445,6 +449,7 @@ static u64 mthca_uarc_virt(struct mthca_dev *dev, struct mthca_uar *uar, int pag
int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
struct mthca_user_db_table *db_tab, int index, u64 uaddr)
{
struct page *pages[1];
int ret = 0;
u8 status;
int i;
@@ -472,16 +477,17 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
}
ret = get_user_pages(current, current->mm, uaddr & PAGE_MASK, 1, 1, 0,
&db_tab->page[i].mem.page, NULL);
pages, NULL);
if (ret < 0)
goto out;
sg_set_page(&db_tab->page[i].mem, pages[0]);
db_tab->page[i].mem.length = MTHCA_ICM_PAGE_SIZE;
db_tab->page[i].mem.offset = uaddr & ~PAGE_MASK;
ret = pci_map_sg(dev->pdev, &db_tab->page[i].mem, 1, PCI_DMA_TODEVICE);
if (ret < 0) {
put_page(db_tab->page[i].mem.page);
put_page(pages[0]);
goto out;
}
@@ -491,7 +497,7 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
ret = -EINVAL;
if (ret) {
pci_unmap_sg(dev->pdev, &db_tab->page[i].mem, 1, PCI_DMA_TODEVICE);
put_page(db_tab->page[i].mem.page);
put_page(sg_page(&db_tab->page[i].mem));
goto out;
}
@@ -557,7 +563,7 @@ void mthca_cleanup_user_db_tab(struct mthca_dev *dev, struct mthca_uar *uar,
if (db_tab->page[i].uvirt) {
mthca_UNMAP_ICM(dev, mthca_uarc_virt(dev, uar, i), 1, &status);
pci_unmap_sg(dev->pdev, &db_tab->page[i].mem, 1, PCI_DMA_TODEVICE);
put_page(db_tab->page[i].mem.page);
put_page(sg_page(&db_tab->page[i].mem));
}
}