ipg: per-device rxfrag_size
Pekka Enberg [Mon, 23 Jun 2008 11:36:00 +0000 (14:36 +0300)]
Add a ->max_rxframe member to struct ipg_nic_private and convert the users of
IPG_RXFRAG_SIZE to use it instead to enable per-device jumbo frame
configuration.

Tested-by: Andrew Savchenko <Bircoph@list.ru>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/net/ipg.c
drivers/net/ipg.h

index 40ce90d..5c5653b 100644 (file)
@@ -751,7 +751,7 @@ 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;
@@ -1207,8 +1207,8 @@ 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);
@@ -1241,10 +1241,10 @@ 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;
@@ -1270,10 +1270,6 @@ 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)
                                dev_kfree_skb_irq(jumbo->skb);
                        else {
@@ -1314,11 +1310,11 @@ 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;
+                               jumbo->current_size += sp->rxfrag_size;
                                if (jumbo->current_size <= IPG_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;
@@ -1410,11 +1406,11 @@ 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) &
@@ -2240,6 +2236,7 @@ static int __devinit ipg_probe(struct pci_dev *pdev,
        mutex_init(&sp->mii_mutex);
 
        sp->is_jumbo = IPG_JUMBO;
+       sp->rxfrag_size = IPG_RXFRAG_SIZE;
 
        /* Declare IPG NIC functions for Ethernet device methods.
         */
index 9c520ce..83e311e 100644 (file)
@@ -796,6 +796,7 @@ struct ipg_nic_private {
        unsigned int rx_dirty;
        bool is_jumbo;
        struct ipg_jumbo jumbo;
+       unsigned long rxfrag_size;
        unsigned int rx_buf_sz;
        struct pci_dev *pdev;
        struct net_device *dev;