From: Michal Schmidt Date: Thu, 5 Sep 2013 20:13:09 +0000 (+0200) Subject: bnx2x: avoid atomic allocations during initialization X-Git-Tag: v3.12-rc1~53^2~19 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=996dedbafe640aee40dc846ad634dd352b6bcd44;p=pandora-kernel.git 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 Signed-off-by: David S. Miller --- Reading git-diff-tree failed