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sfc: check MTU against minimum threshold

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Reported-by: Ma Yuying <yuma@redhat.com>
Suggested-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Reviewed-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Bert Kenward
2016-09-06 17:50:00 +01:00
committed by David S. Miller
parent f1e4ba5b6a
commit 72a31d85a5
2 changed files with 14 additions and 1 deletions
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3
drivers/net/ethernet/sfc/net_driver.h
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@@ -76,6 +76,9 @@
/* Maximum possible MTU the driver supports */
#define EFX_MAX_MTU (9 * 1024)
/* Minimum MTU, from RFC791 (IP) */
#define EFX_MIN_MTU 68
/* Size of an RX scatter buffer. Small enough to pack 2 into a 4K page,
* and should be a multiple of the cache line size.
*/