be2net: move rss_flags field in rss_info to ensure proper alignment
The current position of .rss_flags field in struct rss_info causes
that fields .rsstable and .rssqueue (both 128 bytes long) crosses
cache-line boundaries. Moving it at the end properly align all fields.
Before patch:
struct rss_info {
u64 rss_flags; /* 0 8 */
u8 rsstable[128]; /* 8 128 */
/* --- cacheline 2 boundary (128 bytes) was 8 bytes ago --- */
u8 rss_queue[128]; /* 136 128 */
/* --- cacheline 4 boundary (256 bytes) was 8 bytes ago --- */
u8 rss_hkey[40]; /* 264 40 */
};
After patch:
struct rss_info {
u8 rsstable[128]; /* 0 128 */
/* --- cacheline 2 boundary (128 bytes) --- */
u8 rss_queue[128]; /* 128 128 */
/* --- cacheline 4 boundary (256 bytes) --- */
u8 rss_hkey[40]; /* 256 40 */
u64 rss_flags; /* 296 8 */
};
Signed-off-by: Ivan Vecera <cera@cera.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed