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path: root/drivers/net/ixgbe/ixgbe_main.c
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Diffstat (limited to 'drivers/net/ixgbe/ixgbe_main.c')
-rw-r--r--drivers/net/ixgbe/ixgbe_main.c251
1 files changed, 162 insertions, 89 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index a456578b8578..247ed2a24769 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -98,6 +98,8 @@ static struct pci_device_id ixgbe_pci_tbl[] = {
board_82599 },
{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP),
board_82599 },
+ {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM),
+ board_82599 },
{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ),
board_82599 },
{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4),
@@ -216,10 +218,20 @@ static void ixgbe_unmap_and_free_tx_resource(struct ixgbe_adapter *adapter,
struct ixgbe_tx_buffer
*tx_buffer_info)
{
- tx_buffer_info->dma = 0;
+ if (tx_buffer_info->dma) {
+ if (tx_buffer_info->mapped_as_page)
+ pci_unmap_page(adapter->pdev,
+ tx_buffer_info->dma,
+ tx_buffer_info->length,
+ PCI_DMA_TODEVICE);
+ else
+ pci_unmap_single(adapter->pdev,
+ tx_buffer_info->dma,
+ tx_buffer_info->length,
+ PCI_DMA_TODEVICE);
+ tx_buffer_info->dma = 0;
+ }
if (tx_buffer_info->skb) {
- skb_dma_unmap(&adapter->pdev->dev, tx_buffer_info->skb,
- DMA_TO_DEVICE);
dev_kfree_skb_any(tx_buffer_info->skb);
tx_buffer_info->skb = NULL;
}
@@ -401,7 +413,7 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
if (__netif_subqueue_stopped(netdev, tx_ring->queue_index) &&
!test_bit(__IXGBE_DOWN, &adapter->state)) {
netif_wake_subqueue(netdev, tx_ring->queue_index);
- ++adapter->restart_queue;
+ ++tx_ring->restart_queue;
}
}
@@ -423,8 +435,8 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
tx_ring->total_packets += total_packets;
tx_ring->stats.packets += total_packets;
tx_ring->stats.bytes += total_bytes;
- adapter->net_stats.tx_bytes += total_bytes;
- adapter->net_stats.tx_packets += total_packets;
+ netdev->stats.tx_bytes += total_bytes;
+ netdev->stats.tx_packets += total_packets;
return (count < tx_ring->work_limit);
}
@@ -612,7 +624,6 @@ static inline void ixgbe_rx_checksum(struct ixgbe_adapter *adapter,
/* It must be a TCP or UDP packet with a valid checksum */
skb->ip_summed = CHECKSUM_UNNECESSARY;
- adapter->hw_csum_rx_good++;
}
static inline void ixgbe_release_rx_desc(struct ixgbe_hw *hw,
@@ -669,21 +680,18 @@ static void ixgbe_alloc_rx_buffers(struct ixgbe_adapter *adapter,
if (!bi->skb) {
struct sk_buff *skb;
- skb = netdev_alloc_skb(adapter->netdev,
- (rx_ring->rx_buf_len +
- NET_IP_ALIGN));
+ /* netdev_alloc_skb reserves 32 bytes up front!! */
+ uint bufsz = rx_ring->rx_buf_len + SMP_CACHE_BYTES;
+ skb = netdev_alloc_skb(adapter->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);
+ /* advance the data pointer to the next cache line */
+ skb_reserve(skb, (PTR_ALIGN(skb->data, SMP_CACHE_BYTES)
+ - skb->data));
bi->skb = skb;
bi->dma = pci_map_single(pdev, skb->data,
@@ -735,12 +743,14 @@ static inline u32 ixgbe_get_rsc_count(union ixgbe_adv_rx_desc *rx_desc)
/**
* ixgbe_transform_rsc_queue - change rsc queue into a full packet
* @skb: pointer to the last skb in the rsc queue
+ * @count: pointer to number of packets coalesced in this context
*
* This function changes a queue full of hw rsc buffers into a completed
* packet. It uses the ->prev pointers to find the first packet and then
* turns it into the frag list owner.
**/
-static inline struct sk_buff *ixgbe_transform_rsc_queue(struct sk_buff *skb)
+static inline struct sk_buff *ixgbe_transform_rsc_queue(struct sk_buff *skb,
+ u64 *count)
{
unsigned int frag_list_size = 0;
@@ -749,6 +759,7 @@ static inline struct sk_buff *ixgbe_transform_rsc_queue(struct sk_buff *skb)
frag_list_size += skb->len;
skb->prev = NULL;
skb = prev;
+ *count += 1;
}
skb_shinfo(skb)->frag_list = skb->next;
@@ -764,6 +775,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
int *work_done, int work_to_do)
{
struct ixgbe_adapter *adapter = q_vector->adapter;
+ struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
union ixgbe_adv_rx_desc *rx_desc, *next_rxd;
struct ixgbe_rx_buffer *rx_buffer_info, *next_buffer;
@@ -793,8 +805,6 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
hdr_info = le16_to_cpu(ixgbe_get_hdr_info(rx_desc));
len = (hdr_info & IXGBE_RXDADV_HDRBUFLEN_MASK) >>
IXGBE_RXDADV_HDRBUFLEN_SHIFT;
- if (hdr_info & IXGBE_RXDADV_SPH)
- adapter->rx_hdr_split++;
if (len > IXGBE_RX_HDR_SIZE)
len = IXGBE_RX_HDR_SIZE;
upper_len = le16_to_cpu(rx_desc->wb.upper.length);
@@ -804,7 +814,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
cleaned = true;
skb = rx_buffer_info->skb;
- prefetch(skb->data - NET_IP_ALIGN);
+ prefetch(skb->data);
rx_buffer_info->skb = NULL;
if (rx_buffer_info->dma) {
@@ -850,14 +860,20 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
u32 nextp = (staterr & IXGBE_RXDADV_NEXTP_MASK) >>
IXGBE_RXDADV_NEXTP_SHIFT;
next_buffer = &rx_ring->rx_buffer_info[nextp];
- rx_ring->rsc_count += (rsc_count - 1);
} else {
next_buffer = &rx_ring->rx_buffer_info[i];
}
if (staterr & IXGBE_RXD_STAT_EOP) {
if (skb->prev)
- skb = ixgbe_transform_rsc_queue(skb);
+ skb = ixgbe_transform_rsc_queue(skb, &(rx_ring->rsc_count));
+ if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
+ if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED)
+ rx_ring->rsc_count += skb_shinfo(skb)->nr_frags;
+ else
+ rx_ring->rsc_count++;
+ rx_ring->rsc_flush++;
+ }
rx_ring->stats.packets++;
rx_ring->stats.bytes += skb->len;
} else {
@@ -870,7 +886,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
skb->next = next_buffer->skb;
skb->next->prev = skb;
}
- adapter->non_eop_descs++;
+ rx_ring->non_eop_descs++;
goto next_desc;
}
@@ -935,8 +951,8 @@ next_desc:
rx_ring->total_packets += total_rx_packets;
rx_ring->total_bytes += total_rx_bytes;
- adapter->net_stats.rx_bytes += total_rx_bytes;
- adapter->net_stats.rx_packets += total_rx_packets;
+ netdev->stats.rx_bytes += total_rx_bytes;
+ netdev->stats.rx_packets += total_rx_packets;
return cleaned;
}
@@ -1209,6 +1225,7 @@ static void ixgbe_check_lsc(struct ixgbe_adapter *adapter)
adapter->link_check_timeout = jiffies;
if (!test_bit(__IXGBE_DOWN, &adapter->state)) {
IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_LSC);
+ IXGBE_WRITE_FLUSH(hw);
schedule_work(&adapter->watchdog_task);
}
}
@@ -1312,8 +1329,7 @@ static irqreturn_t ixgbe_msix_clean_tx(int irq, void *data)
r_idx + 1);
}
- /* disable interrupts on this vector only */
- ixgbe_irq_disable_queues(adapter, ((u64)1 << q_vector->v_idx));
+ /* EIAM disabled interrupts (on this vector) for us */
napi_schedule(&q_vector->napi);
return IRQ_HANDLED;
@@ -1344,10 +1360,8 @@ static irqreturn_t ixgbe_msix_clean_rx(int irq, void *data)
if (!q_vector->rxr_count)
return IRQ_HANDLED;
- r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues);
- rx_ring = &(adapter->rx_ring[r_idx]);
/* disable interrupts on this vector only */
- ixgbe_irq_disable_queues(adapter, ((u64)1 << q_vector->v_idx));
+ /* EIAM disabled interrupts (on this vector) for us */
napi_schedule(&q_vector->napi);
return IRQ_HANDLED;
@@ -1382,8 +1396,7 @@ static irqreturn_t ixgbe_msix_clean_many(int irq, void *data)
r_idx + 1);
}
- /* disable interrupts on this vector only */
- ixgbe_irq_disable_queues(adapter, ((u64)1 << q_vector->v_idx));
+ /* EIAM disabled interrupts (on this vector) for us */
napi_schedule(&q_vector->napi);
return IRQ_HANDLED;
@@ -1667,7 +1680,7 @@ static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter)
sprintf(adapter->name[vector], "%s:lsc", netdev->name);
err = request_irq(adapter->msix_entries[vector].vector,
- &ixgbe_msix_lsc, 0, adapter->name[vector], netdev);
+ ixgbe_msix_lsc, 0, adapter->name[vector], netdev);
if (err) {
DPRINTK(PROBE, ERR,
"request_irq for msix_lsc failed: %d\n", err);
@@ -1838,10 +1851,10 @@ static int ixgbe_request_irq(struct ixgbe_adapter *adapter)
if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
err = ixgbe_request_msix_irqs(adapter);
} else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) {
- err = request_irq(adapter->pdev->irq, &ixgbe_intr, 0,
+ err = request_irq(adapter->pdev->irq, ixgbe_intr, 0,
netdev->name, netdev);
} else {
- err = request_irq(adapter->pdev->irq, &ixgbe_intr, IRQF_SHARED,
+ err = request_irq(adapter->pdev->irq, ixgbe_intr, IRQF_SHARED,
netdev->name, netdev);
}
@@ -2063,18 +2076,18 @@ static u32 ixgbe_setup_mrqc(struct ixgbe_adapter *adapter)
* ixgbe_configure_rscctl - enable RSC for the indicated ring
* @adapter: address of board private structure
* @index: index of ring to set
- * @rx_buf_len: rx buffer length
**/
-static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, int index,
- int rx_buf_len)
+static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, int index)
{
struct ixgbe_ring *rx_ring;
struct ixgbe_hw *hw = &adapter->hw;
int j;
u32 rscctrl;
+ int rx_buf_len;
rx_ring = &adapter->rx_ring[index];
j = rx_ring->reg_idx;
+ rx_buf_len = rx_ring->rx_buf_len;
rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(j));
rscctrl |= IXGBE_RSCCTL_RSCEN;
/*
@@ -2282,7 +2295,7 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
/* Enable 82599 HW-RSC */
for (i = 0; i < adapter->num_rx_queues; i++)
- ixgbe_configure_rscctl(adapter, i, rx_buf_len);
+ ixgbe_configure_rscctl(adapter, i);
/* Disable RSC for ACK packets */
IXGBE_WRITE_REG(hw, IXGBE_RSCDBU,
@@ -2333,23 +2346,25 @@ static void ixgbe_vlan_rx_register(struct net_device *netdev,
* not in DCB mode.
*/
ctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_VLNCTRL);
+
+ /* Disable CFI check */
+ ctrl &= ~IXGBE_VLNCTRL_CFIEN;
+
+ /* enable VLAN tag stripping */
if (adapter->hw.mac.type == ixgbe_mac_82598EB) {
- ctrl |= IXGBE_VLNCTRL_VME | IXGBE_VLNCTRL_VFE;
- ctrl &= ~IXGBE_VLNCTRL_CFIEN;
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_VLNCTRL, ctrl);
+ ctrl |= IXGBE_VLNCTRL_VME;
} else if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
- ctrl |= IXGBE_VLNCTRL_VFE;
- /* enable VLAN tag insert/strip */
- ctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_VLNCTRL);
- ctrl &= ~IXGBE_VLNCTRL_CFIEN;
- IXGBE_WRITE_REG(&adapter->hw, IXGBE_VLNCTRL, ctrl);
for (i = 0; i < adapter->num_rx_queues; i++) {
+ u32 ctrl;
j = adapter->rx_ring[i].reg_idx;
ctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_RXDCTL(j));
ctrl |= IXGBE_RXDCTL_VME;
IXGBE_WRITE_REG(&adapter->hw, IXGBE_RXDCTL(j), ctrl);
}
}
+
+ IXGBE_WRITE_REG(&adapter->hw, IXGBE_VLNCTRL, ctrl);
+
ixgbe_vlan_rx_add_vid(netdev, 0);
if (!test_bit(__IXGBE_DOWN, &adapter->state))
@@ -2699,7 +2714,22 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter)
IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
}
- if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
+ if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
+ /*
+ * use EIAM to auto-mask when MSI-X interrupt is asserted
+ * this saves a register write for every interrupt
+ */
+ switch (hw->mac.type) {
+ case ixgbe_mac_82598EB:
+ IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE);
+ break;
+ default:
+ case ixgbe_mac_82599EB:
+ IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(0), 0xFFFFFFFF);
+ IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(1), 0xFFFFFFFF);
+ break;
+ }
+ } else {
/* legacy interrupts, use EIAM to auto-mask when reading EICR,
* specifically only auto mask tx and rx interrupts */
IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE);
@@ -3632,10 +3662,10 @@ static int ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter)
* It's easy to be greedy for MSI-X vectors, but it really
* doesn't do us much good if we have a lot more vectors
* than CPU's. So let's be conservative and only ask for
- * (roughly) twice the number of vectors as there are CPU's.
+ * (roughly) the same number of vectors as there are CPU's.
*/
v_budget = min(adapter->num_rx_queues + adapter->num_tx_queues,
- (int)(num_online_cpus() * 2)) + NON_Q_VECTORS;
+ (int)num_online_cpus()) + NON_Q_VECTORS;
/*
* At the same time, hardware can only support a maximum of
@@ -3943,8 +3973,10 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter)
adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE;
adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
adapter->ring_feature[RING_F_FCOE].indices = 0;
+#ifdef CONFIG_IXGBE_DCB
/* Default traffic class to use for FCoE */
adapter->fcoe.tc = IXGBE_FCOE_DEFTC;
+#endif
#endif /* IXGBE_FCOE */
}
@@ -4475,20 +4507,32 @@ static void ixgbe_shutdown(struct pci_dev *pdev)
**/
void ixgbe_update_stats(struct ixgbe_adapter *adapter)
{
+ struct net_device *netdev = adapter->netdev;
struct ixgbe_hw *hw = &adapter->hw;
u64 total_mpc = 0;
u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot;
- if (hw->mac.type == ixgbe_mac_82599EB) {
+ if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
u64 rsc_count = 0;
+ u64 rsc_flush = 0;
for (i = 0; i < 16; i++)
adapter->hw_rx_no_dma_resources +=
IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
- for (i = 0; i < adapter->num_rx_queues; i++)
+ for (i = 0; i < adapter->num_rx_queues; i++) {
rsc_count += adapter->rx_ring[i].rsc_count;
- adapter->rsc_count = rsc_count;
+ rsc_flush += adapter->rx_ring[i].rsc_flush;
+ }
+ adapter->rsc_total_count = rsc_count;
+ adapter->rsc_total_flush = rsc_flush;
}
+ /* gather some stats to the adapter struct that are per queue */
+ for (i = 0; i < adapter->num_tx_queues; i++)
+ adapter->restart_queue += adapter->tx_ring[i].restart_queue;
+
+ for (i = 0; i < adapter->num_rx_queues; i++)
+ adapter->non_eop_descs += adapter->tx_ring[i].non_eop_descs;
+
adapter->stats.crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS);
for (i = 0; i < 8; i++) {
/* for packet buffers not used, the register should read 0 */
@@ -4594,15 +4638,15 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter)
adapter->stats.bptc += IXGBE_READ_REG(hw, IXGBE_BPTC);
/* Fill out the OS statistics structure */
- adapter->net_stats.multicast = adapter->stats.mprc;
+ netdev->stats.multicast = adapter->stats.mprc;
/* Rx Errors */
- adapter->net_stats.rx_errors = adapter->stats.crcerrs +
+ netdev->stats.rx_errors = adapter->stats.crcerrs +
adapter->stats.rlec;
- adapter->net_stats.rx_dropped = 0;
- adapter->net_stats.rx_length_errors = adapter->stats.rlec;
- adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs;
- adapter->net_stats.rx_missed_errors = total_mpc;
+ netdev->stats.rx_dropped = 0;
+ netdev->stats.rx_length_errors = adapter->stats.rlec;
+ netdev->stats.rx_crc_errors = adapter->stats.crcerrs;
+ netdev->stats.rx_missed_errors = total_mpc;
}
/**
@@ -4871,14 +4915,12 @@ static int ixgbe_tso(struct ixgbe_adapter *adapter,
iph->daddr, 0,
IPPROTO_TCP,
0);
- adapter->hw_tso_ctxt++;
} else if (skb_shinfo(skb)->gso_type == SKB_GSO_TCPV6) {
ipv6_hdr(skb)->payload_len = 0;
tcp_hdr(skb)->check =
~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
&ipv6_hdr(skb)->daddr,
0, IPPROTO_TCP, 0);
- adapter->hw_tso6_ctxt++;
}
i = tx_ring->next_to_use;
@@ -4997,7 +5039,6 @@ static bool ixgbe_tx_csum(struct ixgbe_adapter *adapter,
tx_buffer_info->time_stamp = jiffies;
tx_buffer_info->next_to_watch = i;
- adapter->hw_csum_tx_good++;
i++;
if (i == tx_ring->count)
i = 0;
@@ -5014,23 +5055,16 @@ static int ixgbe_tx_map(struct ixgbe_adapter *adapter,
struct sk_buff *skb, u32 tx_flags,
unsigned int first)
{
+ struct pci_dev *pdev = adapter->pdev;
struct ixgbe_tx_buffer *tx_buffer_info;
unsigned int len;
unsigned int total = skb->len;
unsigned int offset = 0, size, count = 0, i;
unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
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;
-
if (tx_flags & IXGBE_TX_FLAGS_FCOE)
/* excluding fcoe_crc_eof for FCoE */
total -= sizeof(struct fcoe_crc_eof);
@@ -5041,7 +5075,12 @@ static int ixgbe_tx_map(struct ixgbe_adapter *adapter,
size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD);
tx_buffer_info->length = size;
- tx_buffer_info->dma = skb_shinfo(skb)->dma_head + offset;
+ tx_buffer_info->mapped_as_page = false;
+ tx_buffer_info->dma = pci_map_single(pdev,
+ skb->data + offset,
+ size, PCI_DMA_TODEVICE);
+ if (pci_dma_mapping_error(pdev, tx_buffer_info->dma))
+ goto dma_error;
tx_buffer_info->time_stamp = jiffies;
tx_buffer_info->next_to_watch = i;
@@ -5062,7 +5101,7 @@ static int ixgbe_tx_map(struct ixgbe_adapter *adapter,
frag = &skb_shinfo(skb)->frags[f];
len = min((unsigned int)frag->size, total);
- offset = 0;
+ offset = frag->page_offset;
while (len) {
i++;
@@ -5073,7 +5112,13 @@ static int ixgbe_tx_map(struct ixgbe_adapter *adapter,
size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD);
tx_buffer_info->length = size;
- tx_buffer_info->dma = map[f] + offset;
+ tx_buffer_info->dma = pci_map_page(adapter->pdev,
+ frag->page,
+ offset, size,
+ PCI_DMA_TODEVICE);
+ tx_buffer_info->mapped_as_page = true;
+ if (pci_dma_mapping_error(pdev, tx_buffer_info->dma))
+ goto dma_error;
tx_buffer_info->time_stamp = jiffies;
tx_buffer_info->next_to_watch = i;
@@ -5090,6 +5135,27 @@ static int ixgbe_tx_map(struct ixgbe_adapter *adapter,
tx_ring->tx_buffer_info[first].next_to_watch = i;
return count;
+
+dma_error:
+ dev_err(&pdev->dev, "TX DMA map failed\n");
+
+ /* clear timestamp and dma mappings for failed tx_buffer_info map */
+ tx_buffer_info->dma = 0;
+ tx_buffer_info->time_stamp = 0;
+ tx_buffer_info->next_to_watch = 0;
+ count--;
+
+ /* clear timestamp and dma mappings for remaining portion of packet */
+ while (count >= 0) {
+ count--;
+ i--;
+ if (i < 0)
+ i += tx_ring->count;
+ tx_buffer_info = &tx_ring->tx_buffer_info[i];
+ ixgbe_unmap_and_free_tx_resource(adapter, tx_buffer_info);
+ }
+
+ return count;
}
static void ixgbe_tx_queue(struct ixgbe_adapter *adapter,
@@ -5209,8 +5275,6 @@ static void ixgbe_atr(struct ixgbe_adapter *adapter, struct sk_buff *skb,
static int __ixgbe_maybe_stop_tx(struct net_device *netdev,
struct ixgbe_ring *tx_ring, int size)
{
- struct ixgbe_adapter *adapter = netdev_priv(netdev);
-
netif_stop_subqueue(netdev, tx_ring->queue_index);
/* Herbert's original patch had:
* smp_mb__after_netif_stop_queue();
@@ -5224,7 +5288,7 @@ static int __ixgbe_maybe_stop_tx(struct net_device *netdev,
/* A reprieve! - use start_queue because it doesn't call schedule */
netif_start_subqueue(netdev, tx_ring->queue_index);
- ++adapter->restart_queue;
+ ++tx_ring->restart_queue;
return 0;
}
@@ -5239,10 +5303,19 @@ static int ixgbe_maybe_stop_tx(struct net_device *netdev,
static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb)
{
struct ixgbe_adapter *adapter = netdev_priv(dev);
+ int txq = smp_processor_id();
if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)
- return smp_processor_id();
+ return txq;
+#ifdef IXGBE_FCOE
+ if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) &&
+ (skb->protocol == htons(ETH_P_FCOE))) {
+ txq &= (adapter->ring_feature[RING_F_FCOE].indices - 1);
+ txq += adapter->ring_feature[RING_F_FCOE].mask;
+ return txq;
+ }
+#endif
if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
return (skb->vlan_tci & IXGBE_TX_FLAGS_VLAN_PRIO_MASK) >> 13;
@@ -5257,7 +5330,7 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
unsigned int first;
unsigned int tx_flags = 0;
u8 hdr_len = 0;
- int r_idx = 0, tso;
+ int tso;
int count = 0;
unsigned int f;
@@ -5265,13 +5338,13 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
tx_flags |= vlan_tx_tag_get(skb);
if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK;
- tx_flags |= (skb->queue_mapping << 13);
+ tx_flags |= ((skb->queue_mapping & 0x7) << 13);
}
tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT;
tx_flags |= IXGBE_TX_FLAGS_VLAN;
} else if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
if (skb->priority != TC_PRIO_CONTROL) {
- tx_flags |= (skb->queue_mapping << 13);
+ tx_flags |= ((skb->queue_mapping & 0x7) << 13);
tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT;
tx_flags |= IXGBE_TX_FLAGS_VLAN;
} else {
@@ -5280,17 +5353,18 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
}
}
- r_idx = skb->queue_mapping;
- tx_ring = &adapter->tx_ring[r_idx];
+ tx_ring = &adapter->tx_ring[skb->queue_mapping];
if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) &&
(skb->protocol == htons(ETH_P_FCOE))) {
tx_flags |= IXGBE_TX_FLAGS_FCOE;
#ifdef IXGBE_FCOE
- r_idx = smp_processor_id();
- r_idx &= (adapter->ring_feature[RING_F_FCOE].indices - 1);
- r_idx += adapter->ring_feature[RING_F_FCOE].mask;
- tx_ring = &adapter->tx_ring[r_idx];
+#ifdef CONFIG_IXGBE_DCB
+ tx_flags &= ~(IXGBE_TX_FLAGS_VLAN_PRIO_MASK
+ << IXGBE_TX_FLAGS_VLAN_SHIFT);
+ tx_flags |= ((adapter->fcoe.up << 13)
+ << IXGBE_TX_FLAGS_VLAN_SHIFT);
+#endif
#endif
}
/* four things can cause us to need a context descriptor */
@@ -5372,10 +5446,8 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
**/
static struct net_device_stats *ixgbe_get_stats(struct net_device *netdev)
{
- struct ixgbe_adapter *adapter = netdev_priv(netdev);
-
/* only return the current stats */
- return &adapter->net_stats;
+ return &netdev->stats;
}
/**
@@ -5527,6 +5599,7 @@ static const struct net_device_ops ixgbe_netdev_ops = {
.ndo_fcoe_ddp_done = ixgbe_fcoe_ddp_put,
.ndo_fcoe_enable = ixgbe_fcoe_enable,
.ndo_fcoe_disable = ixgbe_fcoe_disable,
+ .ndo_fcoe_get_wwn = ixgbe_fcoe_get_wwn,
#endif /* IXGBE_FCOE */
};