forked from Minki/linux
Merge branch 'upstream-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
This commit is contained in:
Linus Torvalds
commit
e0a5c57848
@ -225,9 +225,6 @@ struct e1000_rx_ring {
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struct e1000_ps_page *ps_page;
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struct e1000_ps_page_dma *ps_page_dma;
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struct sk_buff *rx_skb_top;
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struct sk_buff *rx_skb_prev;
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/* cpu for rx queue */
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int cpu;
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@ -103,7 +103,7 @@ static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
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#else
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#define DRIVERNAPI "-NAPI"
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#endif
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#define DRV_VERSION "6.3.9-k2"DRIVERNAPI
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#define DRV_VERSION "6.3.9-k4"DRIVERNAPI
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char e1000_driver_version[] = DRV_VERSION;
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static char e1000_copyright[] = "Copyright (c) 1999-2005 Intel Corporation.";
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@ -1635,8 +1635,6 @@ setup_rx_desc_die:
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rxdr->next_to_clean = 0;
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rxdr->next_to_use = 0;
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rxdr->rx_skb_top = NULL;
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rxdr->rx_skb_prev = NULL;
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return 0;
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}
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@ -1713,8 +1711,23 @@ e1000_setup_rctl(struct e1000_adapter *adapter)
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rctl |= adapter->rx_buffer_len << 0x11;
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} else {
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rctl &= ~E1000_RCTL_SZ_4096;
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rctl &= ~E1000_RCTL_BSEX;
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rctl |= E1000_RCTL_SZ_2048;
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rctl |= E1000_RCTL_BSEX;
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switch (adapter->rx_buffer_len) {
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case E1000_RXBUFFER_2048:
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default:
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rctl |= E1000_RCTL_SZ_2048;
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rctl &= ~E1000_RCTL_BSEX;
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break;
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case E1000_RXBUFFER_4096:
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rctl |= E1000_RCTL_SZ_4096;
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break;
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case E1000_RXBUFFER_8192:
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rctl |= E1000_RCTL_SZ_8192;
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break;
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case E1000_RXBUFFER_16384:
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rctl |= E1000_RCTL_SZ_16384;
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break;
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}
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}
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#ifndef CONFIG_E1000_DISABLE_PACKET_SPLIT
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@ -2107,16 +2120,6 @@ e1000_clean_rx_ring(struct e1000_adapter *adapter,
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}
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}
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/* there also may be some cached data in our adapter */
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if (rx_ring->rx_skb_top) {
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dev_kfree_skb(rx_ring->rx_skb_top);
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/* rx_skb_prev will be wiped out by rx_skb_top */
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rx_ring->rx_skb_top = NULL;
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rx_ring->rx_skb_prev = NULL;
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}
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size = sizeof(struct e1000_buffer) * rx_ring->count;
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memset(rx_ring->buffer_info, 0, size);
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size = sizeof(struct e1000_ps_page) * rx_ring->count;
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@ -3106,24 +3109,27 @@ e1000_change_mtu(struct net_device *netdev, int new_mtu)
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break;
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}
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/* since the driver code now supports splitting a packet across
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* multiple descriptors, most of the fifo related limitations on
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* jumbo frame traffic have gone away.
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* simply use 2k descriptors for everything.
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*
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* NOTE: dev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
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* means we reserve 2 more, this pushes us to allocate from the next
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* larger slab size
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* i.e. RXBUFFER_2048 --> size-4096 slab */
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/* recent hardware supports 1KB granularity */
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if (adapter->hw.mac_type > e1000_82547_rev_2) {
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adapter->rx_buffer_len =
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((max_frame < E1000_RXBUFFER_2048) ?
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max_frame : E1000_RXBUFFER_2048);
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adapter->rx_buffer_len = max_frame;
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E1000_ROUNDUP(adapter->rx_buffer_len, 1024);
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} else
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adapter->rx_buffer_len = E1000_RXBUFFER_2048;
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} else {
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if(unlikely((adapter->hw.mac_type < e1000_82543) &&
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(max_frame > MAXIMUM_ETHERNET_FRAME_SIZE))) {
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DPRINTK(PROBE, ERR, "Jumbo Frames not supported "
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"on 82542\n");
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return -EINVAL;
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} else {
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if(max_frame <= E1000_RXBUFFER_2048)
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adapter->rx_buffer_len = E1000_RXBUFFER_2048;
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else if(max_frame <= E1000_RXBUFFER_4096)
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adapter->rx_buffer_len = E1000_RXBUFFER_4096;
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else if(max_frame <= E1000_RXBUFFER_8192)
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adapter->rx_buffer_len = E1000_RXBUFFER_8192;
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else if(max_frame <= E1000_RXBUFFER_16384)
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adapter->rx_buffer_len = E1000_RXBUFFER_16384;
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}
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}
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netdev->mtu = new_mtu;
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@ -3620,7 +3626,7 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
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uint8_t last_byte;
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unsigned int i;
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int cleaned_count = 0;
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boolean_t cleaned = FALSE, multi_descriptor = FALSE;
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boolean_t cleaned = FALSE;
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i = rx_ring->next_to_clean;
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rx_desc = E1000_RX_DESC(*rx_ring, i);
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@ -3652,43 +3658,12 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
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length = le16_to_cpu(rx_desc->length);
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skb_put(skb, length);
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if (!(status & E1000_RXD_STAT_EOP)) {
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if (!rx_ring->rx_skb_top) {
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rx_ring->rx_skb_top = skb;
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rx_ring->rx_skb_top->len = length;
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rx_ring->rx_skb_prev = skb;
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} else {
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if (skb_shinfo(rx_ring->rx_skb_top)->frag_list) {
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rx_ring->rx_skb_prev->next = skb;
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skb->prev = rx_ring->rx_skb_prev;
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} else {
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skb_shinfo(rx_ring->rx_skb_top)->frag_list = skb;
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}
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rx_ring->rx_skb_prev = skb;
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rx_ring->rx_skb_top->data_len += length;
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}
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if (unlikely(!(status & E1000_RXD_STAT_EOP))) {
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/* All receives must fit into a single buffer */
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E1000_DBG("%s: Receive packet consumed multiple"
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" buffers\n", netdev->name);
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dev_kfree_skb_irq(skb);
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goto next_desc;
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} else {
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if (rx_ring->rx_skb_top) {
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if (skb_shinfo(rx_ring->rx_skb_top)
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->frag_list) {
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rx_ring->rx_skb_prev->next = skb;
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skb->prev = rx_ring->rx_skb_prev;
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} else
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skb_shinfo(rx_ring->rx_skb_top)
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->frag_list = skb;
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rx_ring->rx_skb_top->data_len += length;
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rx_ring->rx_skb_top->len +=
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rx_ring->rx_skb_top->data_len;
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skb = rx_ring->rx_skb_top;
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multi_descriptor = TRUE;
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rx_ring->rx_skb_top = NULL;
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rx_ring->rx_skb_prev = NULL;
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}
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}
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if (unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) {
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@ -3712,10 +3687,7 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
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* performance for small packets with large amounts
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* of reassembly being done in the stack */
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#define E1000_CB_LENGTH 256
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if ((length < E1000_CB_LENGTH) &&
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!rx_ring->rx_skb_top &&
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/* or maybe (status & E1000_RXD_STAT_EOP) && */
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!multi_descriptor) {
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if (length < E1000_CB_LENGTH) {
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struct sk_buff *new_skb =
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dev_alloc_skb(length + NET_IP_ALIGN);
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if (new_skb) {
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@ -3729,7 +3701,8 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
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skb = new_skb;
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skb_put(skb, length);
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}
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}
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} else
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skb_put(skb, length);
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/* end copybreak code */
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