diff options
| -rw-r--r-- | drivers/infiniband/hw/qib/qib.h | 3 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_file_ops.c | 10 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_user_pages.c | 20 |
3 files changed, 20 insertions, 13 deletions
diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h index a3e21a25cea5..0078f2ad9b92 100644 --- a/drivers/infiniband/hw/qib/qib.h +++ b/drivers/infiniband/hw/qib/qib.h @@ -1448,8 +1448,7 @@ u64 qib_sps_ints(void); /* * dma_addr wrappers - all 0's invalid for hw */ -dma_addr_t qib_map_page(struct pci_dev *, struct page *, unsigned long, - size_t, int); +int qib_map_page(struct pci_dev *d, struct page *p, dma_addr_t *daddr); const char *qib_get_unit_name(int unit); const char *qib_get_card_name(struct rvt_dev_info *rdi); struct pci_dev *qib_get_pci_dev(struct rvt_dev_info *rdi); diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c index 382466a90da7..cc6a92316c7c 100644 --- a/drivers/infiniband/hw/qib/qib_file_ops.c +++ b/drivers/infiniband/hw/qib/qib_file_ops.c @@ -364,6 +364,8 @@ static int qib_tid_update(struct qib_ctxtdata *rcd, struct file *fp, goto done; } for (i = 0; i < cnt; i++, vaddr += PAGE_SIZE) { + dma_addr_t daddr; + for (; ntids--; tid++) { if (tid == tidcnt) tid = 0; @@ -380,12 +382,14 @@ static int qib_tid_update(struct qib_ctxtdata *rcd, struct file *fp, ret = -ENOMEM; break; } + ret = qib_map_page(dd->pcidev, pagep[i], &daddr); + if (ret) + break; + tidlist[i] = tid + tidoff; /* we "know" system pages and TID pages are same size */ dd->pageshadow[ctxttid + tid] = pagep[i]; - dd->physshadow[ctxttid + tid] = - qib_map_page(dd->pcidev, pagep[i], 0, PAGE_SIZE, - PCI_DMA_FROMDEVICE); + dd->physshadow[ctxttid + tid] = daddr; /* * don't need atomic or it's overhead */ diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c index 75f08624ac05..4715edff5488 100644 --- a/drivers/infiniband/hw/qib/qib_user_pages.c +++ b/drivers/infiniband/hw/qib/qib_user_pages.c @@ -98,23 +98,27 @@ bail: * * I'm sure we won't be so lucky with other iommu's, so FIXME. */ -dma_addr_t qib_map_page(struct pci_dev *hwdev, struct page *page, - unsigned long offset, size_t size, int direction) +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, offset, size, direction); + phys = pci_map_page(hwdev, page, 0, PAGE_SIZE, PCI_DMA_FROMDEVICE); + if (pci_dma_mapping_error(hwdev, phys)) + return -ENOMEM; - if (phys == 0) { - pci_unmap_page(hwdev, phys, size, direction); - phys = pci_map_page(hwdev, page, offset, size, direction); + 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)) + return -ENOMEM; /* * FIXME: If we get 0 again, we should keep this page, * map another, then free the 0 page. */ } - - return phys; + *daddr = phys; + return 0; } /** |