#ifdef CONFIG_PCI_IOV
static int igb_vf_configure(struct igb_adapter *adapter, int vf);
-static int igb_find_enabled_vfs(struct igb_adapter *adapter);
-static int igb_check_vf_assignment(struct igb_adapter *adapter);
+static bool igb_vfs_are_assigned(struct igb_adapter *adapter);
#endif
#ifdef CONFIG_PM
buffer_info = &tx_ring->tx_buffer_info[tx_ring->next_to_clean];
pr_info(" %5d %5X %5X %016llX %04X %p %016llX\n",
n, tx_ring->next_to_use, tx_ring->next_to_clean,
- (u64)buffer_info->dma,
- buffer_info->length,
+ (u64)dma_unmap_addr(buffer_info, dma),
+ dma_unmap_len(buffer_info, len),
buffer_info->next_to_watch,
(u64)buffer_info->time_stamp);
}
" %04X %p %016llX %p%s\n", i,
le64_to_cpu(u0->a),
le64_to_cpu(u0->b),
- (u64)buffer_info->dma,
- buffer_info->length,
+ (u64)dma_unmap_addr(buffer_info, dma),
+ dma_unmap_len(buffer_info, len),
buffer_info->next_to_watch,
(u64)buffer_info->time_stamp,
buffer_info->skb, next_desc);
print_hex_dump(KERN_INFO, "",
DUMP_PREFIX_ADDRESS,
16, 1, buffer_info->skb->data,
- buffer_info->length, true);
+ dma_unmap_len(buffer_info, len),
+ true);
}
}
{
struct igb_ring *ring;
int i;
- int orig_node = adapter->node;
for (i = 0; i < adapter->num_tx_queues; i++) {
- if (orig_node == -1) {
- int cur_node = next_online_node(adapter->node);
- if (cur_node == MAX_NUMNODES)
- cur_node = first_online_node;
- adapter->node = cur_node;
- }
- ring = kzalloc_node(sizeof(struct igb_ring), GFP_KERNEL,
- adapter->node);
- if (!ring)
- ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL);
+ ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL);
if (!ring)
goto err;
ring->count = adapter->tx_ring_count;
ring->queue_index = i;
ring->dev = &adapter->pdev->dev;
ring->netdev = adapter->netdev;
- ring->numa_node = adapter->node;
/* For 82575, context index must be unique per ring. */
if (adapter->hw.mac.type == e1000_82575)
set_bit(IGB_RING_FLAG_TX_CTX_IDX, &ring->flags);
adapter->tx_ring[i] = ring;
}
- /* Restore the adapter's original node */
- adapter->node = orig_node;
for (i = 0; i < adapter->num_rx_queues; i++) {
- if (orig_node == -1) {
- int cur_node = next_online_node(adapter->node);
- if (cur_node == MAX_NUMNODES)
- cur_node = first_online_node;
- adapter->node = cur_node;
- }
- ring = kzalloc_node(sizeof(struct igb_ring), GFP_KERNEL,
- adapter->node);
- if (!ring)
- ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL);
+ ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL);
if (!ring)
goto err;
ring->count = adapter->rx_ring_count;
ring->queue_index = i;
ring->dev = &adapter->pdev->dev;
ring->netdev = adapter->netdev;
- ring->numa_node = adapter->node;
/* set flag indicating ring supports SCTP checksum offload */
if (adapter->hw.mac.type >= e1000_82576)
set_bit(IGB_RING_FLAG_RX_SCTP_CSUM, &ring->flags);
adapter->rx_ring[i] = ring;
}
- /* Restore the adapter's original node */
- adapter->node = orig_node;
igb_cache_ring_register(adapter);
return 0;
err:
- /* Restore the adapter's original node */
- adapter->node = orig_node;
igb_free_queues(adapter);
return -ENOMEM;
struct igb_q_vector *q_vector;
struct e1000_hw *hw = &adapter->hw;
int v_idx;
- int orig_node = adapter->node;
for (v_idx = 0; v_idx < adapter->num_q_vectors; v_idx++) {
- if ((adapter->num_q_vectors == (adapter->num_rx_queues +
- adapter->num_tx_queues)) &&
- (adapter->num_rx_queues == v_idx))
- adapter->node = orig_node;
- if (orig_node == -1) {
- int cur_node = next_online_node(adapter->node);
- if (cur_node == MAX_NUMNODES)
- cur_node = first_online_node;
- adapter->node = cur_node;
- }
- q_vector = kzalloc_node(sizeof(struct igb_q_vector), GFP_KERNEL,
- adapter->node);
- if (!q_vector)
- q_vector = kzalloc(sizeof(struct igb_q_vector),
- GFP_KERNEL);
+ q_vector = kzalloc(sizeof(struct igb_q_vector),
+ GFP_KERNEL);
if (!q_vector)
goto err_out;
q_vector->adapter = adapter;
netif_napi_add(adapter->netdev, &q_vector->napi, igb_poll, 64);
adapter->q_vector[v_idx] = q_vector;
}
- /* Restore the adapter's original node */
- adapter->node = orig_node;
return 0;
err_out:
- /* Restore the adapter's original node */
- adapter->node = orig_node;
igb_free_q_vectors(adapter);
return -ENOMEM;
}
/* reclaim resources allocated to VFs */
if (adapter->vf_data) {
/* disable iov and allow time for transactions to clear */
- if (!igb_check_vf_assignment(adapter)) {
+ if (igb_vfs_are_assigned(adapter)) {
+ dev_info(&pdev->dev, "Unloading driver while VFs are assigned - VFs will not be deallocated\n");
+ } else {
pci_disable_sriov(pdev);
msleep(500);
- } else {
- dev_info(&pdev->dev, "VF(s) assigned to guests!\n");
}
kfree(adapter->vf_data);
#ifdef CONFIG_PCI_IOV
struct pci_dev *pdev = adapter->pdev;
struct e1000_hw *hw = &adapter->hw;
- int old_vfs = igb_find_enabled_vfs(adapter);
+ int old_vfs = pci_num_vf(adapter->pdev);
int i;
/* Virtualization features not supported on i210 family. */
VLAN_HLEN;
adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
- adapter->node = -1;
-
spin_lock_init(&adapter->stats64_lock);
#ifdef CONFIG_PCI_IOV
switch (hw->mac.type) {
int igb_setup_tx_resources(struct igb_ring *tx_ring)
{
struct device *dev = tx_ring->dev;
- int orig_node = dev_to_node(dev);
int size;
size = sizeof(struct igb_tx_buffer) * tx_ring->count;
- tx_ring->tx_buffer_info = vzalloc_node(size, tx_ring->numa_node);
- if (!tx_ring->tx_buffer_info)
- tx_ring->tx_buffer_info = vzalloc(size);
+
+ tx_ring->tx_buffer_info = vzalloc(size);
if (!tx_ring->tx_buffer_info)
goto err;
tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc);
tx_ring->size = ALIGN(tx_ring->size, 4096);
- set_dev_node(dev, tx_ring->numa_node);
tx_ring->desc = dma_alloc_coherent(dev,
tx_ring->size,
&tx_ring->dma,
GFP_KERNEL);
- set_dev_node(dev, orig_node);
- if (!tx_ring->desc)
- tx_ring->desc = dma_alloc_coherent(dev,
- tx_ring->size,
- &tx_ring->dma,
- GFP_KERNEL);
-
if (!tx_ring->desc)
goto err;
err:
vfree(tx_ring->tx_buffer_info);
- dev_err(dev,
- "Unable to allocate memory for the transmit descriptor ring\n");
+ tx_ring->tx_buffer_info = NULL;
+ dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n");
return -ENOMEM;
}
int igb_setup_rx_resources(struct igb_ring *rx_ring)
{
struct device *dev = rx_ring->dev;
- int orig_node = dev_to_node(dev);
- int size, desc_len;
+ int size;
size = sizeof(struct igb_rx_buffer) * rx_ring->count;
- rx_ring->rx_buffer_info = vzalloc_node(size, rx_ring->numa_node);
- if (!rx_ring->rx_buffer_info)
- rx_ring->rx_buffer_info = vzalloc(size);
+
+ rx_ring->rx_buffer_info = vzalloc(size);
if (!rx_ring->rx_buffer_info)
goto err;
- desc_len = sizeof(union e1000_adv_rx_desc);
/* Round up to nearest 4K */
- rx_ring->size = rx_ring->count * desc_len;
+ rx_ring->size = rx_ring->count * sizeof(union e1000_adv_rx_desc);
rx_ring->size = ALIGN(rx_ring->size, 4096);
- set_dev_node(dev, rx_ring->numa_node);
rx_ring->desc = dma_alloc_coherent(dev,
rx_ring->size,
&rx_ring->dma,
GFP_KERNEL);
- set_dev_node(dev, orig_node);
- if (!rx_ring->desc)
- rx_ring->desc = dma_alloc_coherent(dev,
- rx_ring->size,
- &rx_ring->dma,
- GFP_KERNEL);
-
if (!rx_ring->desc)
goto err;
err:
vfree(rx_ring->rx_buffer_info);
rx_ring->rx_buffer_info = NULL;
- dev_err(dev, "Unable to allocate memory for the receive descriptor"
- " ring\n");
+ dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n");
return -ENOMEM;
}
{
struct e1000_hw *hw = &adapter->hw;
u32 mrqc, rxcsum;
- u32 j, num_rx_queues, shift = 0, shift2 = 0;
- union e1000_reta {
- u32 dword;
- u8 bytes[4];
- } reta;
- static const u8 rsshash[40] = {
- 0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2, 0x41, 0x67,
- 0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0, 0xd0, 0xca, 0x2b, 0xcb,
- 0xae, 0x7b, 0x30, 0xb4, 0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30,
- 0xf2, 0x0c, 0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa };
+ u32 j, num_rx_queues, shift = 0;
+ static const u32 rsskey[10] = { 0xDA565A6D, 0xC20E5B25, 0x3D256741,
+ 0xB08FA343, 0xCB2BCAD0, 0xB4307BAE,
+ 0xA32DCB77, 0x0CF23080, 0x3BB7426A,
+ 0xFA01ACBE };
/* Fill out hash function seeds */
- for (j = 0; j < 10; j++) {
- u32 rsskey = rsshash[(j * 4)];
- rsskey |= rsshash[(j * 4) + 1] << 8;
- rsskey |= rsshash[(j * 4) + 2] << 16;
- rsskey |= rsshash[(j * 4) + 3] << 24;
- array_wr32(E1000_RSSRK(0), j, rsskey);
- }
+ for (j = 0; j < 10; j++)
+ wr32(E1000_RSSRK(j), rsskey[j]);
num_rx_queues = adapter->rss_queues;
- if (adapter->vfs_allocated_count) {
- /* 82575 and 82576 supports 2 RSS queues for VMDq */
- switch (hw->mac.type) {
- case e1000_i350:
- case e1000_82580:
- num_rx_queues = 1;
- shift = 0;
- break;
- case e1000_82576:
+ switch (hw->mac.type) {
+ case e1000_82575:
+ shift = 6;
+ break;
+ case e1000_82576:
+ /* 82576 supports 2 RSS queues for SR-IOV */
+ if (adapter->vfs_allocated_count) {
shift = 3;
num_rx_queues = 2;
- break;
- case e1000_82575:
- shift = 2;
- shift2 = 6;
- default:
- break;
}
- } else {
- if (hw->mac.type == e1000_82575)
- shift = 6;
+ break;
+ default:
+ break;
}
- for (j = 0; j < (32 * 4); j++) {
- reta.bytes[j & 3] = (j % num_rx_queues) << shift;
- if (shift2)
- reta.bytes[j & 3] |= num_rx_queues << shift2;
- if ((j & 3) == 3)
- wr32(E1000_RETA(j >> 2), reta.dword);
+ /*
+ * Populate the indirection table 4 entries at a time. To do this
+ * we are generating the results for n and n+2 and then interleaving
+ * those with the results with n+1 and n+3.
+ */
+ for (j = 0; j < 32; j++) {
+ /* first pass generates n and n+2 */
+ u32 base = ((j * 0x00040004) + 0x00020000) * num_rx_queues;
+ u32 reta = (base & 0x07800780) >> (7 - shift);
+
+ /* second pass generates n+1 and n+3 */
+ base += 0x00010001 * num_rx_queues;
+ reta |= (base & 0x07800780) << (1 + shift);
+
+ wr32(E1000_RETA(j), reta);
}
/*
{
if (tx_buffer->skb) {
dev_kfree_skb_any(tx_buffer->skb);
- if (tx_buffer->dma)
+ if (dma_unmap_len(tx_buffer, len))
dma_unmap_single(ring->dev,
- tx_buffer->dma,
- tx_buffer->length,
+ dma_unmap_addr(tx_buffer, dma),
+ dma_unmap_len(tx_buffer, len),
DMA_TO_DEVICE);
- } else if (tx_buffer->dma) {
+ } else if (dma_unmap_len(tx_buffer, len)) {
dma_unmap_page(ring->dev,
- tx_buffer->dma,
- tx_buffer->length,
+ dma_unmap_addr(tx_buffer, dma),
+ dma_unmap_len(tx_buffer, len),
DMA_TO_DEVICE);
}
tx_buffer->next_to_watch = NULL;
tx_buffer->skb = NULL;
- tx_buffer->dma = 0;
+ dma_unmap_len_set(tx_buffer, len, 0);
/* buffer_info must be completely set up in the transmit path */
}
const u8 hdr_len)
{
struct sk_buff *skb = first->skb;
- struct igb_tx_buffer *tx_buffer_info;
+ struct igb_tx_buffer *tx_buffer;
union e1000_adv_tx_desc *tx_desc;
dma_addr_t dma;
struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
goto dma_error;
/* record length, and DMA address */
- first->length = size;
- first->dma = dma;
+ dma_unmap_len_set(first, len, size);
+ dma_unmap_addr_set(first, dma, dma);
tx_desc->read.buffer_addr = cpu_to_le64(dma);
for (;;) {
if (dma_mapping_error(tx_ring->dev, dma))
goto dma_error;
- tx_buffer_info = &tx_ring->tx_buffer_info[i];
- tx_buffer_info->length = size;
- tx_buffer_info->dma = dma;
+ tx_buffer = &tx_ring->tx_buffer_info[i];
+ dma_unmap_len_set(tx_buffer, len, size);
+ dma_unmap_addr_set(tx_buffer, dma, dma);
tx_desc->read.olinfo_status = 0;
tx_desc->read.buffer_addr = cpu_to_le64(dma);
/* clear dma mappings for failed tx_buffer_info map */
for (;;) {
- tx_buffer_info = &tx_ring->tx_buffer_info[i];
- igb_unmap_and_free_tx_resource(tx_ring, tx_buffer_info);
- if (tx_buffer_info == first)
+ tx_buffer = &tx_ring->tx_buffer_info[i];
+ igb_unmap_and_free_tx_resource(tx_ring, tx_buffer);
+ if (tx_buffer == first)
break;
if (i == 0)
i = tx_ring->count;
reg = rd32(E1000_CTRL_EXT);
if (!(reg & E1000_CTRL_EXT_LINK_MODE_MASK)) {
adapter->stats.rxerrc += rd32(E1000_RXERRC);
- adapter->stats.tncrs += rd32(E1000_TNCRS);
+
+ /* this stat has invalid values on i210/i211 */
+ if ((hw->mac.type != e1000_i210) &&
+ (hw->mac.type != e1000_i211))
+ adapter->stats.tncrs += rd32(E1000_TNCRS);
}
adapter->stats.tsctc += rd32(E1000_TSCTC);
static int igb_vf_configure(struct igb_adapter *adapter, int vf)
{
unsigned char mac_addr[ETH_ALEN];
- struct pci_dev *pdev = adapter->pdev;
- struct e1000_hw *hw = &adapter->hw;
- struct pci_dev *pvfdev;
- unsigned int device_id;
- u16 thisvf_devfn;
eth_random_addr(mac_addr);
igb_set_vf_mac(adapter, vf, mac_addr);
- switch (adapter->hw.mac.type) {
- case e1000_82576:
- device_id = IGB_82576_VF_DEV_ID;
- /* VF Stride for 82576 is 2 */
- thisvf_devfn = (pdev->devfn + 0x80 + (vf << 1)) |
- (pdev->devfn & 1);
- break;
- case e1000_i350:
- device_id = IGB_I350_VF_DEV_ID;
- /* VF Stride for I350 is 4 */
- thisvf_devfn = (pdev->devfn + 0x80 + (vf << 2)) |
- (pdev->devfn & 3);
- break;
- default:
- device_id = 0;
- thisvf_devfn = 0;
- break;
- }
-
- pvfdev = pci_get_device(hw->vendor_id, device_id, NULL);
- while (pvfdev) {
- if (pvfdev->devfn == thisvf_devfn)
- break;
- pvfdev = pci_get_device(hw->vendor_id,
- device_id, pvfdev);
- }
-
- if (pvfdev)
- adapter->vf_data[vf].vfdev = pvfdev;
- else
- dev_err(&pdev->dev,
- "Couldn't find pci dev ptr for VF %4.4x\n",
- thisvf_devfn);
- return pvfdev != NULL;
+ return 0;
}
-static int igb_find_enabled_vfs(struct igb_adapter *adapter)
+static bool igb_vfs_are_assigned(struct igb_adapter *adapter)
{
- struct e1000_hw *hw = &adapter->hw;
struct pci_dev *pdev = adapter->pdev;
- struct pci_dev *pvfdev;
- u16 vf_devfn = 0;
- u16 vf_stride;
- unsigned int device_id;
- int vfs_found = 0;
+ struct pci_dev *vfdev;
+ int dev_id;
switch (adapter->hw.mac.type) {
case e1000_82576:
- device_id = IGB_82576_VF_DEV_ID;
- /* VF Stride for 82576 is 2 */
- vf_stride = 2;
+ dev_id = IGB_82576_VF_DEV_ID;
break;
case e1000_i350:
- device_id = IGB_I350_VF_DEV_ID;
- /* VF Stride for I350 is 4 */
- vf_stride = 4;
+ dev_id = IGB_I350_VF_DEV_ID;
break;
default:
- device_id = 0;
- vf_stride = 0;
- break;
- }
-
- vf_devfn = pdev->devfn + 0x80;
- pvfdev = pci_get_device(hw->vendor_id, device_id, NULL);
- while (pvfdev) {
- if (pvfdev->devfn == vf_devfn &&
- (pvfdev->bus->number >= pdev->bus->number))
- vfs_found++;
- vf_devfn += vf_stride;
- pvfdev = pci_get_device(hw->vendor_id,
- device_id, pvfdev);
+ return false;
}
- return vfs_found;
-}
-
-static int igb_check_vf_assignment(struct igb_adapter *adapter)
-{
- int i;
- for (i = 0; i < adapter->vfs_allocated_count; i++) {
- if (adapter->vf_data[i].vfdev) {
- if (adapter->vf_data[i].vfdev->dev_flags &
- PCI_DEV_FLAGS_ASSIGNED)
+ /* loop through all the VFs to see if we own any that are assigned */
+ vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, NULL);
+ while (vfdev) {
+ /* if we don't own it we don't care */
+ if (vfdev->is_virtfn && vfdev->physfn == pdev) {
+ /* if it is assigned we cannot release it */
+ if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
return true;
}
+
+ vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, vfdev);
}
+
return false;
}
struct igb_adapter *adapter = q_vector->adapter;
struct igb_ring *tx_ring = q_vector->tx.ring;
struct igb_tx_buffer *tx_buffer;
- union e1000_adv_tx_desc *tx_desc, *eop_desc;
+ union e1000_adv_tx_desc *tx_desc;
unsigned int total_bytes = 0, total_packets = 0;
unsigned int budget = q_vector->tx.work_limit;
unsigned int i = tx_ring->next_to_clean;
tx_desc = IGB_TX_DESC(tx_ring, i);
i -= tx_ring->count;
- for (; budget; budget--) {
- eop_desc = tx_buffer->next_to_watch;
-
- /* prevent any other reads prior to eop_desc */
- rmb();
+ do {
+ union e1000_adv_tx_desc *eop_desc = tx_buffer->next_to_watch;
/* if next_to_watch is not set then there is no work pending */
if (!eop_desc)
break;
+ /* prevent any other reads prior to eop_desc */
+ rmb();
+
/* if DD is not set pending work has not been completed */
if (!(eop_desc->wb.status & cpu_to_le32(E1000_TXD_STAT_DD)))
break;
/* free the skb */
dev_kfree_skb_any(tx_buffer->skb);
- tx_buffer->skb = NULL;
/* unmap skb header data */
dma_unmap_single(tx_ring->dev,
- tx_buffer->dma,
- tx_buffer->length,
+ dma_unmap_addr(tx_buffer, dma),
+ dma_unmap_len(tx_buffer, len),
DMA_TO_DEVICE);
+ /* clear tx_buffer data */
+ tx_buffer->skb = NULL;
+ dma_unmap_len_set(tx_buffer, len, 0);
+
/* clear last DMA location and unmap remaining buffers */
while (tx_desc != eop_desc) {
- tx_buffer->dma = 0;
-
tx_buffer++;
tx_desc++;
i++;
}
/* unmap any remaining paged data */
- if (tx_buffer->dma) {
+ if (dma_unmap_len(tx_buffer, len)) {
dma_unmap_page(tx_ring->dev,
- tx_buffer->dma,
- tx_buffer->length,
+ dma_unmap_addr(tx_buffer, dma),
+ dma_unmap_len(tx_buffer, len),
DMA_TO_DEVICE);
+ dma_unmap_len_set(tx_buffer, len, 0);
}
}
- /* clear last DMA location */
- tx_buffer->dma = 0;
-
/* move us one more past the eop_desc for start of next pkt */
tx_buffer++;
tx_desc++;
tx_buffer = tx_ring->tx_buffer_info;
tx_desc = IGB_TX_DESC(tx_ring, 0);
}
- }
+
+ /* issue prefetch for next Tx descriptor */
+ prefetch(tx_desc);
+
+ /* update budget accounting */
+ budget--;
+ } while (likely(budget));
netdev_tx_completed_queue(txring_txq(tx_ring),
total_packets, total_bytes);
if (test_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags)) {
struct e1000_hw *hw = &adapter->hw;
- eop_desc = tx_buffer->next_to_watch;
-
/* Detect a transmit hang in hardware, this serializes the
* check with the clearing of time_stamp and movement of i */
clear_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags);
- if (eop_desc &&
+ if (tx_buffer->next_to_watch &&
time_after(jiffies, tx_buffer->time_stamp +
(adapter->tx_timeout_factor * HZ)) &&
!(rd32(E1000_STATUS) & E1000_STATUS_TXOFF)) {
tx_ring->next_to_use,
tx_ring->next_to_clean,
tx_buffer->time_stamp,
- eop_desc,
+ tx_buffer->next_to_watch,
jiffies,
- eop_desc->wb.status);
+ tx_buffer->next_to_watch->wb.status);
netif_stop_subqueue(tx_ring->netdev,
tx_ring->queue_index);
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / commitdiff