sfc: allocate more RX buffers per page

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Allocating 2 buffers per page is insanely inefficient when MTU is 1500
and PAGE_SIZE is 64K (as it usually is on POWER).  Allocate as many as
we can fit, and choose the refill batch size at run-time so that we
still always use a whole page at once.

[bwh: Fix loop condition to allow for compound pages; rebase]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

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This commit is contained in:

Daniel Pieczko 2013-02-13 10:54:41 +00:00 • committed by Ben Hutchings

parent 179ea7f039

commit 1648a23fa1

4 changed files with 56 additions and 45 deletions

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18

drivers/net/ethernet/sfc/efx.c

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1

drivers/net/ethernet/sfc/efx.h

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2

drivers/net/ethernet/sfc/net_driver.h

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80

drivers/net/ethernet/sfc/rx.c

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