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| author |   Roland Dreier <rolandd@cisco.com> | 2008-05-06 15:03:38 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-05-06 15:03:38 -0700 |
| commit | 0e9913362a967377eb886bbdf305ec58aa07a878 (patch) | |
| tree | 4677a588e942eb198c9cdb15338bcbcfb51f6902 /drivers/infiniband/hw/cxgb3/iwch_mem.c | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband (diff) | |
| download | linux-dev-0e9913362a967377eb886bbdf305ec58aa07a878.tar.xz linux-dev-0e9913362a967377eb886bbdf305ec58aa07a878.zip | |
RDMA/cxgb3: Don't add PBL memory to gen_pool in chunks
Current iw_cxgb3 code adds PBL memory to the driver's gen_pool in 2 MB
chunks. This limits the largest single allocation that can be done to
the same size, which means that with 4 KB pages, each of which takes 8
bytes of PBL memory, the largest memory region that can be allocated
is 1 GB (256K PBL entries * 4 KB/entry).
Remove this limit by adding all the PBL memory in a single gen_pool
chunk, if possible. Add code that falls back to smaller chunks if
gen_pool_add() fails, which can happen if there is not sufficient
contiguous lowmem for the internal gen_pool bitmap.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/cxgb3/iwch_mem.c')
0 files changed, 0 insertions, 0 deletions