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| author |   Bert Kenward <bkenward@solarflare.com> | 2016-09-06 17:50:00 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-09-06 16:54:18 -0700 |
| commit | 72a31d85a56581f0369f881c453d9c212a2bad38 (patch) | |
| tree | d8dde8397bef83dbe01bd364fbff9cec71ee6364 /drivers/net/ethernet/sfc/net_driver.h | |
| parent | perf, bpf: fix conditional call to bpf_overflow_handler (diff) | |
| download | linux-dev-72a31d85a56581f0369f881c453d9c212a2bad38.tar.xz linux-dev-72a31d85a56581f0369f881c453d9c212a2bad38.zip | |
sfc: check MTU against minimum threshold
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>
Diffstat (limited to 'drivers/net/ethernet/sfc/net_driver.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 0a2504b5dad5..99d8c82124bb 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -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. */ |