Commit d9fed18b authored by Jesse Brandeburg's avatar Jesse Brandeburg Committed by Jeff Garzik
Browse files

ixgb: add copybreak parameter 



copybreak code was already in the driver, allow the user to turn it
off if they don't like it.

Signed-off-by: default avatarJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent 2115a643

drivers/net/ixgb/ixgb_main.c

+7 −2
Original line number Diff line number Diff line
@@ -40,6 +40,12 @@ static char ixgb_driver_string[] = "Intel(R) PRO/10GbE Network Driver"; 
const char ixgb_driver_version[] = DRV_VERSION;

static const char ixgb_copyright[] = "Copyright (c) 1999-2006 Intel Corporation.";



#define IXGB_CB_LENGTH 256

static unsigned int copybreak __read_mostly = IXGB_CB_LENGTH;

module_param(copybreak, uint, 0644);

MODULE_PARM_DESC(copybreak,

	"Maximum size of packet that is copied to a new buffer on receive");



/* ixgb_pci_tbl - PCI Device ID Table

 *

 * Wildcard entries (PCI_ANY_ID) should come last
@@ -1976,8 +1982,7 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter) 
		/* code added for copybreak, this should improve

		 * performance for small packets with large amounts

		 * of reassembly being done in the stack */

#define IXGB_CB_LENGTH 256

		if (length < IXGB_CB_LENGTH) {

		if (length < copybreak) {

			struct sk_buff *new_skb =

			    netdev_alloc_skb(netdev, length + NET_IP_ALIGN);

			if (new_skb) {

CRA Git | Maintained and supported by SUSTech CRA and CCSE