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path: root/drivers/net/ipg.c
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Diffstat (limited to 'drivers/net/ipg.c')
-rw-r--r--drivers/net/ipg.c121
1 files changed, 73 insertions, 48 deletions
diff --git a/drivers/net/ipg.c b/drivers/net/ipg.c
index 679a0826780..7373dafbb3f 100644
--- a/drivers/net/ipg.c
+++ b/drivers/net/ipg.c
@@ -42,7 +42,6 @@
#define ipg_r16(reg) ioread16(ioaddr + (reg))
#define ipg_r8(reg) ioread8(ioaddr + (reg))
-#define JUMBO_FRAME_4k_ONLY
enum {
netdev_io_size = 128
};
@@ -55,6 +54,14 @@ MODULE_DESCRIPTION("IC Plus IP1000 Gigabit Ethernet Adapter Linux Driver");
MODULE_LICENSE("GPL");
/*
+ * Defaults
+ */
+#define IPG_MAX_RXFRAME_SIZE 0x0600
+#define IPG_RXFRAG_SIZE 0x0600
+#define IPG_RXSUPPORT_SIZE 0x0600
+#define IPG_IS_JUMBO false
+
+/*
* Variable record -- index by leading revision/length
* Revision/Length(=N*4), Address1, Data1, Address2, Data2,...,AddressN,DataN
*/
@@ -631,6 +638,7 @@ static void ipg_nic_set_multicast_list(struct net_device *dev)
static int ipg_io_config(struct net_device *dev)
{
+ struct ipg_nic_private *sp = netdev_priv(dev);
void __iomem *ioaddr = ipg_ioaddr(dev);
u32 origmacctrl;
u32 restoremacctrl;
@@ -670,7 +678,7 @@ static int ipg_io_config(struct net_device *dev)
/* Set RECEIVEMODE register. */
ipg_nic_set_multicast_list(dev);
- ipg_w16(IPG_MAX_RXFRAME_SIZE, MAX_FRAME_SIZE);
+ ipg_w16(sp->max_rxframe_size, MAX_FRAME_SIZE);
ipg_w8(IPG_RXDMAPOLLPERIOD_VALUE, RX_DMA_POLL_PERIOD);
ipg_w8(IPG_RXDMAURGENTTHRESH_VALUE, RX_DMA_URGENT_THRESH);
@@ -730,7 +738,7 @@ static int ipg_get_rxbuff(struct net_device *dev, int entry)
IPG_DEBUG_MSG("_get_rxbuff\n");
- skb = netdev_alloc_skb(dev, IPG_RXSUPPORT_SIZE + NET_IP_ALIGN);
+ skb = netdev_alloc_skb(dev, sp->rxsupport_size + NET_IP_ALIGN);
if (!skb) {
sp->rx_buff[entry] = NULL;
return -ENOMEM;
@@ -751,7 +759,7 @@ static int ipg_get_rxbuff(struct net_device *dev, int entry)
sp->rx_buf_sz, PCI_DMA_FROMDEVICE));
/* Set the RFD fragment length. */
- rxfragsize = IPG_RXFRAG_SIZE;
+ rxfragsize = sp->rxfrag_size;
rxfd->frag_info |= cpu_to_le64((rxfragsize << 48) & IPG_RFI_FRAGLEN);
return 0;
@@ -1076,8 +1084,6 @@ 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 +1103,7 @@ 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 +1119,7 @@ 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 +1132,7 @@ 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;
@@ -1209,8 +1215,8 @@ static void ipg_nic_rx_with_start_and_end(struct net_device *dev,
/* accept this frame and send to upper layer */
framelen = le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFRAMELEN;
- if (framelen > IPG_RXFRAG_SIZE)
- framelen = IPG_RXFRAG_SIZE;
+ if (framelen > sp->rxfrag_size)
+ framelen = sp->rxfrag_size;
skb_put(skb, framelen);
skb->protocol = eth_type_trans(skb, dev);
@@ -1243,10 +1249,10 @@ static void ipg_nic_rx_with_start(struct net_device *dev,
pci_unmap_single(pdev, le64_to_cpu(rxfd->frag_info & ~IPG_RFI_FRAGLEN),
sp->rx_buf_sz, PCI_DMA_FROMDEVICE);
- skb_put(skb, IPG_RXFRAG_SIZE);
+ skb_put(skb, sp->rxfrag_size);
jumbo->found_start = 1;
- jumbo->current_size = IPG_RXFRAG_SIZE;
+ jumbo->current_size = sp->rxfrag_size;
jumbo->skb = skb;
sp->rx_buff[entry] = NULL;
@@ -1271,16 +1277,12 @@ static void ipg_nic_rx_with_end(struct net_device *dev,
framelen = le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFRAMELEN;
- endframeLen = framelen - jumbo->current_size;
- /*
- if (framelen > IPG_RXFRAG_SIZE)
- framelen=IPG_RXFRAG_SIZE;
- */
- if (framelen > IPG_RXSUPPORT_SIZE)
+ endframelen = framelen - jumbo->current_size;
+ if (framelen > sp->rxsupport_size)
dev_kfree_skb_irq(jumbo->skb);
else {
- memcpy(skb_put(jumbo->skb, endframeLen),
- skb->data, endframeLen);
+ memcpy(skb_put(jumbo->skb, endframelen),
+ skb->data, endframelen);
jumbo->skb->protocol =
eth_type_trans(jumbo->skb, dev);
@@ -1316,11 +1318,11 @@ static void ipg_nic_rx_no_start_no_end(struct net_device *dev,
if (skb) {
if (jumbo->found_start) {
- jumbo->current_size += IPG_RXFRAG_SIZE;
- if (jumbo->current_size <= IPG_RXSUPPORT_SIZE) {
+ jumbo->current_size += sp->rxfrag_size;
+ if (jumbo->current_size <= sp->rxsupport_size) {
memcpy(skb_put(jumbo->skb,
- IPG_RXFRAG_SIZE),
- skb->data, IPG_RXFRAG_SIZE);
+ sp->rxfrag_size),
+ skb->data, sp->rxfrag_size);
}
}
dev->last_rx = jiffies;
@@ -1334,7 +1336,7 @@ 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;
@@ -1352,16 +1354,16 @@ static int ipg_nic_rx(struct net_device *dev)
switch (ipg_nic_rx_check_frame_type(dev)) {
case FRAME_WITH_START_WITH_END:
- ipg_nic_rx_with_start_and_end(dev, tp, rxfd, entry);
+ ipg_nic_rx_with_start_and_end(dev, sp, rxfd, entry);
break;
case FRAME_WITH_START:
- ipg_nic_rx_with_start(dev, tp, rxfd, entry);
+ ipg_nic_rx_with_start(dev, sp, rxfd, entry);
break;
case FRAME_WITH_END:
- ipg_nic_rx_with_end(dev, tp, rxfd, entry);
+ ipg_nic_rx_with_end(dev, sp, rxfd, entry);
break;
case FRAME_NO_START_NO_END:
- ipg_nic_rx_no_start_no_end(dev, tp, rxfd, entry);
+ ipg_nic_rx_no_start_no_end(dev, sp, rxfd, entry);
break;
}
}
@@ -1382,7 +1384,6 @@ 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. */
@@ -1413,11 +1414,11 @@ static int ipg_nic_rx(struct net_device *dev)
/* Check for jumbo frame arrival with too small
* RXFRAG_SIZE.
*/
- if (framelen > IPG_RXFRAG_SIZE) {
+ if (framelen > sp->rxfrag_size) {
IPG_DEBUG_MSG
("RFS FrameLen > allocated fragment size.\n");
- framelen = IPG_RXFRAG_SIZE;
+ framelen = sp->rxfrag_size;
}
if ((IPG_DROP_ON_RX_ETH_ERRORS && (le64_to_cpu(rxfd->rfs) &
@@ -1556,7 +1557,6 @@ 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 +1592,9 @@ 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 +1650,10 @@ 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. */
@@ -1749,7 +1752,7 @@ static int ipg_nic_open(struct net_device *dev)
IPG_DEBUG_MSG("_nic_open\n");
- sp->rx_buf_sz = IPG_RXSUPPORT_SIZE;
+ sp->rx_buf_sz = sp->rxsupport_size;
/* Check for interrupt line conflicts, and request interrupt
* line for IPG.
@@ -1804,13 +1807,10 @@ 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 = 0;
- dev->mtu = IPG_TXFRAG_SIZE;
-#endif
+ sp->jumbo.skb = NULL;
/* Enable transmit and receive operation of the IPG. */
ipg_w32((ipg_r32(MAC_CTRL) | IPG_MC_RX_ENABLE | IPG_MC_TX_ENABLE) &
@@ -2119,6 +2119,9 @@ static int ipg_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
static int ipg_nic_change_mtu(struct net_device *dev, int new_mtu)
{
+ struct ipg_nic_private *sp = netdev_priv(dev);
+ int err;
+
/* Function to accomodate changes to Maximum Transfer Unit
* (or MTU) of IPG NIC. Cannot use default function since
* the default will not allow for MTU > 1500 bytes.
@@ -2126,16 +2129,33 @@ static int ipg_nic_change_mtu(struct net_device *dev, int new_mtu)
IPG_DEBUG_MSG("_nic_change_mtu\n");
- /* Check that the new MTU value is between 68 (14 byte header, 46
- * byte payload, 4 byte FCS) and IPG_MAX_RXFRAME_SIZE, which
- * corresponds to the MAXFRAMESIZE register in the IPG.
+ /*
+ * Check that the new MTU value is between 68 (14 byte header, 46 byte
+ * payload, 4 byte FCS) and 10 KB, which is the largest supported MTU.
*/
- if ((new_mtu < 68) || (new_mtu > IPG_MAX_RXFRAME_SIZE))
+ if (new_mtu < 68 || new_mtu > 10240)
return -EINVAL;
+ err = ipg_nic_stop(dev);
+ if (err)
+ return err;
+
dev->mtu = new_mtu;
- return 0;
+ sp->max_rxframe_size = new_mtu;
+
+ sp->rxfrag_size = new_mtu;
+ if (sp->rxfrag_size > 4088)
+ sp->rxfrag_size = 4088;
+
+ sp->rxsupport_size = sp->max_rxframe_size;
+
+ if (new_mtu > 0x0600)
+ sp->is_jumbo = true;
+ else
+ sp->is_jumbo = false;
+
+ return ipg_nic_open(dev);
}
static int ipg_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
@@ -2240,6 +2260,11 @@ static int __devinit ipg_probe(struct pci_dev *pdev,
spin_lock_init(&sp->lock);
mutex_init(&sp->mii_mutex);
+ sp->is_jumbo = IPG_IS_JUMBO;
+ sp->rxfrag_size = IPG_RXFRAG_SIZE;
+ sp->rxsupport_size = IPG_RXSUPPORT_SIZE;
+ sp->max_rxframe_size = IPG_MAX_RXFRAME_SIZE;
+
/* Declare IPG NIC functions for Ethernet device methods.
*/
dev->open = &ipg_nic_open;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 21:41:56 +0000