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| author | Roland Dreier <rolandd@cisco.com> | 2006-12-15 14:01:49 -0800 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-12-15 14:01:49 -0800 |
| commit | bf628dc22a09ed2022abb32c76011ae5f99ad6b0 (patch) | |
| tree | c29aff97085d9426dffe1e648e09d4aca0ead024 /drivers/infiniband/ulp/srp/ib_srp.h | |
| parent | c59a3da1342ff456e5123361739bc331446cda21 (diff) | |
| download | blackbird-op-linux-bf628dc22a09ed2022abb32c76011ae5f99ad6b0.tar.gz blackbird-op-linux-bf628dc22a09ed2022abb32c76011ae5f99ad6b0.zip | |
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 <Brian.Cain@ge.com> and David McMillen
<davem@systemfabricworks.com> for help diagnosing the bug and testing
the fix.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/ulp/srp/ib_srp.h')
| -rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.h | 2 |
1 files changed, 1 insertions, 1 deletions
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 { |
