#include <linux/netdevice.h>
#include <linux/tcp.h>
#include <linux/ipv6.h>
+#include <linux/slab.h>
#include <net/checksum.h>
#include <net/ip6_checksum.h>
#include <linux/mii.h>
static const char igbvf_copyright[] = "Copyright (c) 2009 Intel Corporation.";
static int igbvf_poll(struct napi_struct *napi, int budget);
+static void igbvf_reset(struct igbvf_adapter *);
+static void igbvf_set_interrupt_capability(struct igbvf_adapter *);
+static void igbvf_reset_interrupt_capability(struct igbvf_adapter *);
static struct igbvf_info igbvf_vf_info = {
.mac = e1000_vfadapt,
- .flags = FLAG_HAS_JUMBO_FRAMES
- | FLAG_RX_CSUM_ENABLED,
+ .flags = 0,
.pba = 10,
.init_ops = e1000_init_function_pointers_vf,
};
E1000_RXD_SPC_VLAN_MASK);
else
netif_receive_skb(skb);
-
- netdev->last_rx = jiffies;
}
static inline void igbvf_rx_checksum_adv(struct igbvf_adapter *adapter,
skb->ip_summed = CHECKSUM_NONE;
/* Ignore Checksum bit is set or checksum is disabled through ethtool */
- if ((status_err & E1000_RXD_STAT_IXSM))
+ if ((status_err & E1000_RXD_STAT_IXSM) ||
+ (adapter->flags & IGBVF_FLAG_RX_CSUM_DISABLED))
return;
+
/* TCP/UDP checksum error bit is set */
if (status_err &
(E1000_RXDEXT_STATERR_TCPE | E1000_RXDEXT_STATERR_IPE)) {
adapter->hw_csum_err++;
return;
}
+
/* It must be a TCP or UDP packet with a valid checksum */
if (status_err & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS))
skb->ip_summed = CHECKSUM_UNNECESSARY;
bufsz = adapter->rx_ps_hdr_size;
else
bufsz = adapter->rx_buffer_len;
- bufsz += NET_IP_ALIGN;
while (cleaned_count--) {
rx_desc = IGBVF_RX_DESC_ADV(*rx_ring, i);
}
if (!buffer_info->skb) {
- skb = netdev_alloc_skb(netdev, bufsz);
+ skb = netdev_alloc_skb_ip_align(netdev, bufsz);
if (!skb) {
adapter->alloc_rx_buff_failed++;
goto no_buffers;
}
- /* Make buffer alignment 2 beyond a 16 byte boundary
- * this will result in a 16 byte aligned IP header after
- * the 14 byte MAC header is removed
- */
- skb_reserve(skb, NET_IP_ALIGN);
-
buffer_info->skb = skb;
buffer_info->dma = pci_map_single(pdev, skb->data,
bufsz,
if (!skb_shinfo(skb)->nr_frags) {
pci_unmap_single(pdev, buffer_info->dma,
- adapter->rx_ps_hdr_size + NET_IP_ALIGN,
+ adapter->rx_ps_hdr_size,
PCI_DMA_FROMDEVICE);
skb_put(skb, hlen);
}
igbvf_receive_skb(adapter, netdev, skb, staterr,
rx_desc->wb.upper.vlan);
- netdev->last_rx = jiffies;
-
next_desc:
rx_desc->wb.upper.status_error = 0;
static void igbvf_put_txbuf(struct igbvf_adapter *adapter,
struct igbvf_buffer *buffer_info)
{
- buffer_info->dma = 0;
+ if (buffer_info->dma) {
+ if (buffer_info->mapped_as_page)
+ pci_unmap_page(adapter->pdev,
+ buffer_info->dma,
+ buffer_info->length,
+ PCI_DMA_TODEVICE);
+ else
+ pci_unmap_single(adapter->pdev,
+ buffer_info->dma,
+ buffer_info->length,
+ PCI_DMA_TODEVICE);
+ buffer_info->dma = 0;
+ }
if (buffer_info->skb) {
- skb_dma_unmap(&adapter->pdev->dev, buffer_info->skb,
- DMA_TO_DEVICE);
dev_kfree_skb_any(buffer_info->skb);
buffer_info->skb = NULL;
}
adapter->detect_tx_hung = false;
if (tx_ring->buffer_info[i].time_stamp &&
time_after(jiffies, tx_ring->buffer_info[i].time_stamp +
- (adapter->tx_timeout_factor * HZ))
- && !(er32(STATUS) & E1000_STATUS_TXOFF)) {
+ (adapter->tx_timeout_factor * HZ)) &&
+ !(er32(STATUS) & E1000_STATUS_TXOFF)) {
tx_desc = IGBVF_TX_DESC_ADV(*tx_ring, i);
/* detected Tx unit hang */
e1e_flush();
}
-void igbvf_reset_interrupt_capability(struct igbvf_adapter *adapter)
+static void igbvf_reset_interrupt_capability(struct igbvf_adapter *adapter)
{
if (adapter->msix_entries) {
pci_disable_msix(adapter->pdev);
* Attempt to configure interrupts using the best available
* capabilities of the hardware and kernel.
**/
-void igbvf_set_interrupt_capability(struct igbvf_adapter *adapter)
+static void igbvf_set_interrupt_capability(struct igbvf_adapter *adapter)
{
int err = -ENOMEM;
int i;
}
err = request_irq(adapter->msix_entries[vector].vector,
- &igbvf_intr_msix_tx, 0, adapter->tx_ring->name,
+ igbvf_intr_msix_tx, 0, adapter->tx_ring->name,
netdev);
if (err)
goto out;
vector++;
err = request_irq(adapter->msix_entries[vector].vector,
- &igbvf_intr_msix_rx, 0, adapter->rx_ring->name,
+ igbvf_intr_msix_rx, 0, adapter->rx_ring->name,
netdev);
if (err)
goto out;
vector++;
err = request_irq(adapter->msix_entries[vector].vector,
- &igbvf_msix_other, 0, netdev->name, netdev);
+ igbvf_msix_other, 0, netdev->name, netdev);
if (err)
goto out;
/* Setup the HW Tx Head and Tail descriptor pointers */
ew32(TDLEN(0), tx_ring->count * sizeof(union e1000_adv_tx_desc));
tdba = tx_ring->dma;
- ew32(TDBAL(0), (tdba & DMA_32BIT_MASK));
+ ew32(TDBAL(0), (tdba & DMA_BIT_MASK(32)));
ew32(TDBAH(0), (tdba >> 32));
ew32(TDH(0), 0);
ew32(TDT(0), 0);
/* enable Report Status bit */
adapter->txd_cmd |= E1000_ADVTXD_DCMD_RS;
-
- adapter->tx_queue_len = adapter->netdev->tx_queue_len;
}
/**
* the Base and Length of the Rx Descriptor Ring
*/
rdba = rx_ring->dma;
- ew32(RDBAL(0), (rdba & DMA_32BIT_MASK));
+ ew32(RDBAL(0), (rdba & DMA_BIT_MASK(32)));
ew32(RDBAH(0), (rdba >> 32));
ew32(RDLEN(0), rx_ring->count * sizeof(union e1000_adv_rx_desc));
rx_ring->head = E1000_RDH(0);
u8 *mta_list = NULL;
int i;
- if (netdev->mc_count) {
- mta_list = kmalloc(netdev->mc_count * 6, GFP_ATOMIC);
+ if (!netdev_mc_empty(netdev)) {
+ mta_list = kmalloc(netdev_mc_count(netdev) * 6, GFP_ATOMIC);
if (!mta_list) {
dev_err(&adapter->pdev->dev,
"failed to allocate multicast filter list\n");
}
/* prepare a packed array of only addresses. */
- mc_ptr = netdev->mc_list;
-
- for (i = 0; i < netdev->mc_count; i++) {
- if (!mc_ptr)
- break;
- memcpy(mta_list + (i*ETH_ALEN), mc_ptr->dmi_addr,
- ETH_ALEN);
- mc_ptr = mc_ptr->next;
- }
+ i = 0;
+ netdev_for_each_mc_addr(mc_ptr, netdev)
+ memcpy(mta_list + (i++ * ETH_ALEN), mc_ptr->dmi_addr, ETH_ALEN);
hw->mac.ops.update_mc_addr_list(hw, mta_list, i, 0, 0);
kfree(mta_list);
* set/changed during runtime. After reset the device needs to be
* properly configured for Rx, Tx etc.
*/
-void igbvf_reset(struct igbvf_adapter *adapter)
+static void igbvf_reset(struct igbvf_adapter *adapter)
{
struct e1000_mac_info *mac = &adapter->hw.mac;
struct net_device *netdev = adapter->netdev;
memcpy(netdev->perm_addr, adapter->hw.mac.addr,
netdev->addr_len);
}
+
+ adapter->last_reset = jiffies;
}
int igbvf_up(struct igbvf_adapter *adapter)
del_timer_sync(&adapter->watchdog_timer);
- netdev->tx_queue_len = adapter->tx_queue_len;
netif_carrier_off(netdev);
/* record the stats before reset*/
s32 ret_val = E1000_SUCCESS;
bool link_active;
+ /* If interface is down, stay link down */
+ if (test_bit(__IGBVF_DOWN, &adapter->state))
+ return false;
+
ret_val = hw->mac.ops.check_for_link(hw);
link_active = !hw->mac.get_link_status;
/* if check for link returns error we will need to reset */
- if (ret_val)
+ if (ret_val && time_after(jiffies, adapter->last_reset + (10 * HZ)))
schedule_work(&adapter->reset_task);
return link_active;
&adapter->link_duplex);
igbvf_print_link_info(adapter);
- /*
- * tweak tx_queue_len according to speed/duplex
- * and adjust the timeout factor
- */
- netdev->tx_queue_len = adapter->tx_queue_len;
+ /* adjust timeout factor according to speed/duplex */
adapter->tx_timeout_factor = 1;
switch (adapter->link_speed) {
case SPEED_10:
txb2b = 0;
- netdev->tx_queue_len = 10;
adapter->tx_timeout_factor = 16;
break;
case SPEED_100:
txb2b = 0;
- netdev->tx_queue_len = 100;
/* maybe add some timeout factor ? */
break;
}
iph->daddr, 0,
IPPROTO_TCP,
0);
- } else if (skb_shinfo(skb)->gso_type == SKB_GSO_TCPV6) {
+ } else if (skb_is_gso_v6(skb)) {
ipv6_hdr(skb)->payload_len = 0;
tcp_hdr(skb)->check = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
&ipv6_hdr(skb)->daddr,
unsigned int first)
{
struct igbvf_buffer *buffer_info;
+ struct pci_dev *pdev = adapter->pdev;
unsigned int len = skb_headlen(skb);
unsigned int count = 0, i;
unsigned int f;
- dma_addr_t *map;
i = tx_ring->next_to_use;
- if (skb_dma_map(&adapter->pdev->dev, skb, DMA_TO_DEVICE)) {
- dev_err(&adapter->pdev->dev, "TX DMA map failed\n");
- return 0;
- }
-
- map = skb_shinfo(skb)->dma_maps;
-
buffer_info = &tx_ring->buffer_info[i];
BUG_ON(len >= IGBVF_MAX_DATA_PER_TXD);
buffer_info->length = len;
/* set time_stamp *before* dma to help avoid a possible race */
buffer_info->time_stamp = jiffies;
buffer_info->next_to_watch = i;
- buffer_info->dma = map[count];
- count++;
+ buffer_info->mapped_as_page = false;
+ buffer_info->dma = pci_map_single(pdev, skb->data, len,
+ PCI_DMA_TODEVICE);
+ if (pci_dma_mapping_error(pdev, buffer_info->dma))
+ goto dma_error;
+
for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) {
struct skb_frag_struct *frag;
+ count++;
i++;
if (i == tx_ring->count)
i = 0;
buffer_info->length = len;
buffer_info->time_stamp = jiffies;
buffer_info->next_to_watch = i;
- buffer_info->dma = map[count];
- count++;
+ buffer_info->mapped_as_page = true;
+ buffer_info->dma = pci_map_page(pdev,
+ frag->page,
+ frag->page_offset,
+ len,
+ PCI_DMA_TODEVICE);
+ if (pci_dma_mapping_error(pdev, buffer_info->dma))
+ goto dma_error;
}
tx_ring->buffer_info[i].skb = skb;
tx_ring->buffer_info[first].next_to_watch = i;
- return count;
+ return ++count;
+
+dma_error:
+ dev_err(&pdev->dev, "TX DMA map failed\n");
+
+ /* clear timestamp and dma mappings for failed buffer_info mapping */
+ buffer_info->dma = 0;
+ buffer_info->time_stamp = 0;
+ buffer_info->length = 0;
+ buffer_info->next_to_watch = 0;
+ buffer_info->mapped_as_page = false;
+ if (count)
+ count--;
+
+ /* clear timestamp and dma mappings for remaining portion of packet */
+ while (count--) {
+ if (i==0)
+ i += tx_ring->count;
+ i--;
+ buffer_info = &tx_ring->buffer_info[i];
+ igbvf_put_txbuf(adapter, buffer_info);
+ }
+
+ return 0;
}
static inline void igbvf_tx_queue_adv(struct igbvf_adapter *adapter,
mmiowb();
}
-static int igbvf_xmit_frame_ring_adv(struct sk_buff *skb,
- struct net_device *netdev,
- struct igbvf_ring *tx_ring)
+static netdev_tx_t igbvf_xmit_frame_ring_adv(struct sk_buff *skb,
+ struct net_device *netdev,
+ struct igbvf_ring *tx_ring)
{
struct igbvf_adapter *adapter = netdev_priv(netdev);
unsigned int first, tx_flags = 0;
if (count) {
igbvf_tx_queue_adv(adapter, tx_ring, tx_flags, count,
skb->len, hdr_len);
- netdev->trans_start = jiffies;
/* Make sure there is space in the ring for the next send. */
igbvf_maybe_stop_tx(netdev, MAX_SKB_FRAGS + 4);
} else {
return NETDEV_TX_OK;
}
-static int igbvf_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t igbvf_xmit_frame(struct sk_buff *skb,
+ struct net_device *netdev)
{
struct igbvf_adapter *adapter = netdev_priv(netdev);
struct igbvf_ring *tx_ring;
- int retval;
if (test_bit(__IGBVF_DOWN, &adapter->state)) {
dev_kfree_skb_any(skb);
tx_ring = &adapter->tx_ring[0];
- retval = igbvf_xmit_frame_ring_adv(skb, netdev, tx_ring);
-
- return retval;
+ return igbvf_xmit_frame_ring_adv(skb, netdev, tx_ring);
}
/**
return -EINVAL;
}
- /* Jumbo frame size limits */
- if (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) {
- if (!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
- dev_err(&adapter->pdev->dev,
- "Jumbo Frames not supported.\n");
- return -EINVAL;
- }
- }
-
#define MAX_STD_JUMBO_FRAME_SIZE 9234
if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
dev_err(&adapter->pdev->dev, "MTU > 9216 not supported.\n");
netif_device_detach(netdev);
+ if (state == pci_channel_io_perm_failure)
+ return PCI_ERS_RESULT_DISCONNECT;
+
if (netif_running(netdev))
igbvf_down(adapter);
pci_disable_device(pdev);
struct pci_dev *pdev = adapter->pdev;
dev_info(&pdev->dev, "Intel(R) 82576 Virtual Function\n");
- dev_info(&pdev->dev, "Address: %02x:%02x:%02x:%02x:%02x:%02x\n",
- /* MAC address */
- netdev->dev_addr[0], netdev->dev_addr[1],
- netdev->dev_addr[2], netdev->dev_addr[3],
- netdev->dev_addr[4], netdev->dev_addr[5]);
+ dev_info(&pdev->dev, "Address: %pM\n", netdev->dev_addr);
dev_info(&pdev->dev, "MAC: %d\n", hw->mac.type);
}
return err;
pci_using_dac = 0;
- err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
if (!err) {
- err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
if (!err)
pci_using_dac = 1;
} else {
- err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
- err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ err = pci_set_consistent_dma_mask(pdev,
+ DMA_BIT_MASK(32));
if (err) {
dev_err(&pdev->dev, "No usable DMA "
"configuration, aborting\n");
err = hw->mac.ops.reset_hw(hw);
if (err) {
dev_info(&pdev->dev,
- "PF still in reset state, assigning new address\n");
+ "PF still in reset state, assigning new address."
+ " Is the PF interface up?\n");
random_ether_addr(hw->mac.addr);
} else {
err = hw->mac.ops.read_mac_addr(hw);
memcpy(netdev->perm_addr, adapter->hw.mac.addr, netdev->addr_len);
if (!is_valid_ether_addr(netdev->perm_addr)) {
- dev_err(&pdev->dev, "Invalid MAC Address: "
- "%02x:%02x:%02x:%02x:%02x:%02x\n",
- netdev->dev_addr[0], netdev->dev_addr[1],
- netdev->dev_addr[2], netdev->dev_addr[3],
- netdev->dev_addr[4], netdev->dev_addr[5]);
+ dev_err(&pdev->dev, "Invalid MAC Address: %pM\n",
+ netdev->dev_addr);
err = -EIO;
goto err_hw_init;
}
.resume = igbvf_io_resume,
};
-static struct pci_device_id igbvf_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(igbvf_pci_tbl) = {
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_VF), board_vf },
{ } /* terminate list */
};
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