diff options
| -rw-r--r-- | drivers/net/ixgbe/ixgbe.h | 1 | ||||
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 9 |
2 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h index c0e56aab548..2d877da143c 100644 --- a/drivers/net/ixgbe/ixgbe.h +++ b/drivers/net/ixgbe/ixgbe.h @@ -71,6 +71,7 @@ #define IXGBE_RXBUFFER_128 128 /* Used for packet split */ #define IXGBE_RXBUFFER_256 256 /* Used for packet split */ #define IXGBE_RXBUFFER_2048 2048 +#define IXGBE_MAX_RXBUFFER 16384 /* largest size for a single descriptor */ #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256 diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index e0d736cc245..65642355a83 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -1550,7 +1550,14 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, int index) srrctl &= ~IXGBE_SRRCTL_BSIZEPKT_MASK; if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { - srrctl |= IXGBE_RXBUFFER_2048 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; + u16 bufsz = IXGBE_RXBUFFER_2048; + /* grow the amount we can receive on large page machines */ + if (bufsz < (PAGE_SIZE / 2)) + bufsz = (PAGE_SIZE / 2); + /* cap the bufsz at our largest descriptor size */ + bufsz = min((u16)IXGBE_MAX_RXBUFFER, bufsz); + + srrctl |= bufsz >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS; srrctl |= ((IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) & |