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>
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 08f4a13..4c38d51 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -1754,28 +1754,20 @@
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);