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[PATCH] sky2: copy threshold as module parameter

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

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Stephen Hemminger 2005-12-09 11:34:55 -08:00 committed by Jeff Garzik
parent 6e23231b65
commit bdb5c58ebe
1 changed files with 5 additions and 2 deletions
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7
drivers/net/sky2.c
View file

@ -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;