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| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2008-07-09 00:52:02 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-07-11 07:20:28 +0200 |
| commit | d9fed18bf9090bd0682f3c611c40261a98a2842d (patch) | |
| tree | 91f8579e3613706dc219f0c0785be2763670836f | |
| parent | ixgb: update readme text (diff) | |
| download | linux-d9fed18bf9090bd0682f3c611c40261a98a2842d.tar.xz linux-d9fed18bf9090bd0682f3c611c40261a98a2842d.zip | |
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: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| -rw-r--r-- | drivers/net/ixgb/ixgb_main.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c index bd08e1992140..4e422c4cbe83 100644 --- a/drivers/net/ixgb/ixgb_main.c +++ b/drivers/net/ixgb/ixgb_main.c @@ -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) { |