From bf628dc22a09ed2022abb32c76011ae5f99ad6b0 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 15 Dec 2006 14:01:49 -0800 Subject: IB/srp: Fix FMR mapping for 32-bit kernels and addresses above 4G struct srp_device.fmr_page_mask was unsigned long, which means that the top part of addresses above 4G was being chopped off on 32-bit architectures. Of course nothing good happens when data from SRP targets is DMAed to the wrong place. Fix this by changing fmr_page_mask to u64, to match the addresses actually used by IB devices. Thanks to Brian Cain and David McMillen for help diagnosing the bug and testing the fix. Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/srp/ib_srp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/infiniband/ulp/srp/ib_srp.h') diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h index 868a540ef7cd..c21772317b86 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.h +++ b/drivers/infiniband/ulp/srp/ib_srp.h @@ -87,7 +87,7 @@ struct srp_device { struct ib_fmr_pool *fmr_pool; int fmr_page_shift; int fmr_page_size; - unsigned long fmr_page_mask; + u64 fmr_page_mask; }; struct srp_host { -- cgit v1.2.3