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OpenCloudOS-Kernel
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ipg: always compile in jumbo frame support 

Add a ->is_jumbo boolean to struct ipg_nic_private and fix up
ipg_interrupt_handler() to call the jumbo frame version of ipg_nic_rx() if the
boolean is set to true. Also remove the JUMBO_FRAME #ifdefs so we can always
compile in support for jumbo frames.

Tested-by: Andrew Savchenko <Bircoph@list.ru>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Pekka Enberg 2008-06-23 14:35:16 +03:00 committed by Jeff Garzik
parent 16e605a2a0
commit 024f4d88b4
2 changed files with 21 additions and 15 deletions
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27
drivers/net/ipg.c
View File

@ -1076,8 +1076,6 @@ static int ipg_nic_rxrestore(struct net_device *dev)
return 0;
}
#ifdef JUMBO_FRAME
/* use jumboindex and jumbosize to control jumbo frame status
* initial status is jumboindex=-1 and jumbosize=0
* 1. jumboindex = -1 and jumbosize=0 : previous jumbo frame has been done.
@ -1097,7 +1095,7 @@ enum {
FRAME_WITH_START_WITH_END = 11
};
inline void ipg_nic_rx_free_skb(struct net_device *dev)
static void ipg_nic_rx_free_skb(struct net_device *dev)
{
struct ipg_nic_private *sp = netdev_priv(dev);
unsigned int entry = sp->rx_current % IPG_RFDLIST_LENGTH;
@ -1113,7 +1111,7 @@ inline void ipg_nic_rx_free_skb(struct net_device *dev)
}
}
inline int ipg_nic_rx_check_frame_type(struct net_device *dev)
static int ipg_nic_rx_check_frame_type(struct net_device *dev)
{
struct ipg_nic_private *sp = netdev_priv(dev);
struct ipg_rx *rxfd = sp->rxd + (sp->rx_current % IPG_RFDLIST_LENGTH);
@ -1126,7 +1124,7 @@ inline int ipg_nic_rx_check_frame_type(struct net_device *dev)
return type;
}
inline int ipg_nic_rx_check_error(struct net_device *dev)
static int ipg_nic_rx_check_error(struct net_device *dev)
{
struct ipg_nic_private *sp = netdev_priv(dev);
unsigned int entry = sp->rx_current % IPG_RFDLIST_LENGTH;
@ -1334,7 +1332,7 @@ static void ipg_nic_rx_no_start_no_end(struct net_device *dev,
}
}
static int ipg_nic_rx(struct net_device *dev)
static int ipg_nic_rx_jumbo(struct net_device *dev)
{
struct ipg_nic_private *sp = netdev_priv(dev);
unsigned int curr = sp->rx_current;
@ -1382,7 +1380,6 @@ static int ipg_nic_rx(struct net_device *dev)
return 0;
}
#else
static int ipg_nic_rx(struct net_device *dev)
{
/* Transfer received Ethernet frames to higher network layers. */
@ -1556,7 +1553,6 @@ static int ipg_nic_rx(struct net_device *dev)
return 0;
}
#endif
static void ipg_reset_after_host_error(struct work_struct *work)
{
@ -1592,9 +1588,9 @@ static irqreturn_t ipg_interrupt_handler(int irq, void *dev_inst)
IPG_DEBUG_MSG("_interrupt_handler\n");
#ifdef JUMBO_FRAME
ipg_nic_rxrestore(dev);
#endif
if (sp->is_jumbo)
ipg_nic_rxrestore(dev);
spin_lock(&sp->lock);
/* Get interrupt source information, and acknowledge
@ -1650,7 +1646,10 @@ static irqreturn_t ipg_interrupt_handler(int irq, void *dev_inst)
sp->RFDListCheckedCount++;
#endif
ipg_nic_rx(dev);
if (sp->is_jumbo)
ipg_nic_rx_jumbo(dev);
else
ipg_nic_rx(dev);
}
/* If TxDMAComplete interrupt, free used TFDs. */
@ -1804,11 +1803,11 @@ static int ipg_nic_open(struct net_device *dev)
if (ipg_config_autoneg(dev) < 0)
printk(KERN_INFO "%s: Auto-negotiation error.\n", dev->name);
#ifdef JUMBO_FRAME
/* initialize JUMBO Frame control variable */
sp->jumbo.found_start = 0;
sp->jumbo.current_size = 0;
sp->jumbo.skb = NULL;
#ifdef JUMBO_FRAME
dev->mtu = IPG_TXFRAG_SIZE;
#endif
@ -2240,6 +2239,8 @@ static int __devinit ipg_probe(struct pci_dev *pdev,
spin_lock_init(&sp->lock);
mutex_init(&sp->mii_mutex);
sp->is_jumbo = IPG_JUMBO;
/* Declare IPG NIC functions for Ethernet device methods.
*/
dev->open = &ipg_nic_open;

9
drivers/net/ipg.h
View File

@ -536,6 +536,12 @@ enum ipg_regs {
*/
#define IPG_FRAMESBETWEENTXDMACOMPLETES 0x1
#ifdef JUMBO_FRAME
# define IPG_JUMBO true
#else
# define IPG_JUMBO false
#endif
#ifdef JUMBO_FRAME
# ifdef JUMBO_FRAME_SIZE_2K
@ -786,9 +792,8 @@ struct ipg_nic_private {
unsigned int tx_dirty;
unsigned int rx_current;
unsigned int rx_dirty;
#ifdef JUMBO_FRAME
bool is_jumbo;
struct ipg_jumbo jumbo;
#endif
unsigned int rx_buf_sz;
struct pci_dev *pdev;
struct net_device *dev;