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| author | Suren A. Chilingaryan <csa@suren.me> | 2016-03-22 14:56:39 +0100 |
|---|---|---|
| committer | Suren A. Chilingaryan <csa@suren.me> | 2016-03-22 14:56:39 +0100 |
| commit | 31695b7d43df1537b650f83fde752dadb8943274 (patch) | |
| tree | d104c593787ce57d6c521af06c46af41d21264cb | |
| parent | ad9deef451f517f60dea5cc5c4d05b09ba84b464 (diff) | |
| download | pcitool-31695b7d43df1537b650f83fde752dadb8943274.tar.gz pcitool-31695b7d43df1537b650f83fde752dadb8943274.tar.bz2 pcitool-31695b7d43df1537b650f83fde752dadb8943274.tar.xz pcitool-31695b7d43df1537b650f83fde752dadb8943274.zip | |
Resolve also not page-algined BAR addresses in the driver
| -rw-r--r-- | driver/rdma.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/driver/rdma.c b/driver/rdma.c index b1d939a..c601188 100644 --- a/driver/rdma.c +++ b/driver/rdma.c @@ -42,11 +42,13 @@ static unsigned long pcidriver_follow_pte(struct mm_struct *mm, unsigned long ad return pfn; } -unsigned long pcidriver_resolve_bar(unsigned long address) { +unsigned long pcidriver_resolve_bar(unsigned long bar_address) { int dev, bar; unsigned long pfn; + unsigned long address; - address = (address >> PAGE_SHIFT) << PAGE_SHIFT; + address = (bar_address >> PAGE_SHIFT) << PAGE_SHIFT; + offset = bar_address - address; pfn = pcidriver_follow_pte(current->mm, address); for (dev = 0; dev < MAXDEVICES; dev++) @@ -59,7 +61,7 @@ unsigned long pcidriver_resolve_bar(unsigned long address) { unsigned long start = pci_resource_start(privdata->pdev, bar); unsigned long end = start + pci_resource_len(privdata->pdev, bar); if ((pfn >= start)&&(pfn < end)) - return pfn; + return pfn + offset; } pcidriver_put_privdata(privdata); } |