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author | Michal Schmidt <mschmidt@redhat.com> | 2013-09-05 20:13:09 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2013-09-11 19:43:54 (GMT) |
commit | 996dedbafe640aee40dc846ad634dd352b6bcd44 (patch) | |
tree | bd7b091ebbf1ac628a2640c9cb4f4459bf2f5783 /drivers/regulator/dbx500-prcmu.h | |
parent | c19d65c95c6d472d69829fea7d473228493d5245 (diff) | |
download | linux-fsl-qoriq-996dedbafe640aee40dc846ad634dd352b6bcd44.tar.xz |
bnx2x: avoid atomic allocations during initialization
During initialization bnx2x allocates significant amounts of memory
(for rx data, rx SGEs, TPA pool) using atomic allocations.
I received a report where bnx2x failed to allocate SGEs and it had
to fall back to TPA-less operation.
Let's use GFP_KERNEL allocations during initialization, which runs
in process context. Add gfp_t parameters to functions that are used
both in initialization and in the receive path.
Use an unlikely branch in bnx2x_frag_alloc() to avoid atomic allocation
by netdev_alloc_frag(). The branch is taken several thousands of times
during initialization, but then never more. Note that fp->rx_frag_size
is never greater than PAGE_SIZE, so __get_free_page() can be used here.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/regulator/dbx500-prcmu.h')
0 files changed, 0 insertions, 0 deletions