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| author | David S. Miller <davem@davemloft.net> | 2020-09-15 00:07:58 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-15 00:07:58 +0300 |
| commit | 7952d7edf30beedbfa67414c31eab18584710fba (patch) | |
| tree | 566c50f90eb8e2aed30f08a6314c67cbfadf3750 /include | |
| parent | e0d9ae699e3ab5b907b9bc826ea37dba50d29dbd (diff) | |
| parent | 8cbf74149903382cf422c653d4ee8fb2f44e3ec8 (diff) | |
| download | linux-7952d7edf30beedbfa67414c31eab18584710fba.tar.xz | |
Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Tony Nguyen says:
====================
40GbE Intel Wired LAN Driver Updates 2020-09-14
This series contains updates to i40e driver only.
Li RongQing removes binding affinity mask to a fixed CPU and sets
prefetch of Rx buffer page to occur conditionally.
Björn provides AF_XDP performance improvements by not prefetching HW
descriptors, using 16 byte descriptors, and moving buffer allocation
out of Rx processing loop.
v2: Define prefetch_page_address in a common header for patch 2.
Dropped, previous, patch 5 as it is being reworked to be more
generalized.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/prefetch.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/prefetch.h b/include/linux/prefetch.h index 13eafebf3549..b83a3f944f28 100644 --- a/include/linux/prefetch.h +++ b/include/linux/prefetch.h @@ -15,6 +15,7 @@ #include <asm/processor.h> #include <asm/cache.h> +struct page; /* prefetch(x) attempts to pre-emptively get the memory pointed to by address "x" into the CPU L1 cache. @@ -62,4 +63,11 @@ static inline void prefetch_range(void *addr, size_t len) #endif } +static inline void prefetch_page_address(struct page *page) +{ +#if defined(WANT_PAGE_VIRTUAL) || defined(HASHED_PAGE_VIRTUAL) + prefetch(page); +#endif +} + #endif |