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ixgbe: always set header length in SRRCTL 

As per the documentation for 82599 in order to support hardware RSC the
header size must be set.  This is only currently done for packet split
mode.  This patch sets the header buffer length for all modes.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2009-05-07 10:38:56 +00:00 committed by David S. Miller
parent 7aedec2ad5
commit afafd5b020
1 changed files with 10 additions and 18 deletions
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28
drivers/net/ixgbe/ixgbe_main.c
View File

@ -1754,28 +1754,20 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, int index)
srrctl &= ~IXGBE_SRRCTL_BSIZEHDR_MASK;
srrctl &= ~IXGBE_SRRCTL_BSIZEPKT_MASK;
srrctl |= (IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) &
IXGBE_SRRCTL_BSIZEHDR_MASK;
if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) {
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;
#if (PAGE_SIZE / 2) > IXGBE_MAX_RXBUFFER
srrctl |= IXGBE_MAX_RXBUFFER >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
#else
srrctl |= (PAGE_SIZE / 2) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
#endif
srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS;
srrctl |= ((IXGBE_RX_HDR_SIZE <<
IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) &
IXGBE_SRRCTL_BSIZEHDR_MASK);
} else {
srrctl |= ALIGN(rx_ring->rx_buf_len, 1024) >>
IXGBE_SRRCTL_BSIZEPKT_SHIFT;
srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
if (rx_ring->rx_buf_len == MAXIMUM_ETHERNET_VLAN_SIZE)
srrctl |= IXGBE_RXBUFFER_2048 >>
IXGBE_SRRCTL_BSIZEPKT_SHIFT;
else
srrctl |= rx_ring->rx_buf_len >>
IXGBE_SRRCTL_BSIZEPKT_SHIFT;
}
IXGBE_WRITE_REG(&adapter->hw, IXGBE_SRRCTL(index), srrctl);