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Commit bdb5c58e authored by Stephen Hemminger's avatar Stephen Hemminger Committed by Jeff Garzik
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[PATCH] sky2: copy threshold as module parameter 



Make the copy threshold a module parameter for those who
may want to turn it off.

Signed-off-by: default avatarStephen Hemminger <shemminger@osdl.org>
Signed-off-by: default avatarJeff Garzik <jgarzik@pobox.com>
parent 6e23231b

drivers/net/sky2.c

+5 −2
Original line number Diff line number Diff line
@@ -76,7 +76,6 @@ 
#define RX_LE_BYTES		(RX_LE_SIZE*sizeof(struct sky2_rx_le))

#define RX_MAX_PENDING		(RX_LE_SIZE/2 - 2)

#define RX_DEF_PENDING		RX_MAX_PENDING

#define RX_COPY_THRESHOLD	256



#define TX_RING_SIZE		512

#define TX_DEF_PENDING		(TX_RING_SIZE - 1)
@@ -99,6 +98,10 @@ static int debug = -1; /* defaults above */ 
module_param(debug, int, 0);

MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");



static int copybreak __read_mostly = 256;

module_param(copybreak, int, 0);

MODULE_PARM_DESC(copybreak, "Receive copy threshold");



static const struct pci_device_id sky2_id_table[] = {

	{ PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) },

	{ PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) },
@@ -1653,7 +1656,7 @@ static struct sk_buff *sky2_receive(struct sky2_port *sky2, 
	if (!(status & GMR_FS_RX_OK))

		goto resubmit;



	if (length < RX_COPY_THRESHOLD) {

	if (length < copybreak) {

		skb = alloc_skb(length + 2, GFP_ATOMIC);

		if (!skb)

			goto resubmit;