igb: add pci device pointer to ring structure
This patch adds a pci device pointer to the ring structure. The main use of
this pointer is for memory mapping/unmapping of the rings.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 2728f93..ff16b7a 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -436,11 +436,13 @@
struct igb_ring *ring = &(adapter->tx_ring[i]);
ring->count = adapter->tx_ring_count;
ring->queue_index = i;
+ ring->pdev = adapter->pdev;
}
for (i = 0; i < adapter->num_rx_queues; i++) {
struct igb_ring *ring = &(adapter->rx_ring[i]);
ring->count = adapter->rx_ring_count;
ring->queue_index = i;
+ ring->pdev = adapter->pdev;
}
igb_cache_ring_register(adapter);
@@ -2002,15 +2004,13 @@
/**
* igb_setup_tx_resources - allocate Tx resources (Descriptors)
- * @adapter: board private structure
* @tx_ring: tx descriptor ring (for a specific queue) to setup
*
* Return 0 on success, negative on failure
**/
-int igb_setup_tx_resources(struct igb_adapter *adapter,
- struct igb_ring *tx_ring)
+int igb_setup_tx_resources(struct igb_ring *tx_ring)
{
- struct pci_dev *pdev = adapter->pdev;
+ struct pci_dev *pdev = tx_ring->pdev;
int size;
size = sizeof(struct igb_buffer) * tx_ring->count;
@@ -2053,7 +2053,7 @@
int r_idx;
for (i = 0; i < adapter->num_tx_queues; i++) {
- err = igb_setup_tx_resources(adapter, &adapter->tx_ring[i]);
+ err = igb_setup_tx_resources(&adapter->tx_ring[i]);
if (err) {
dev_err(&adapter->pdev->dev,
"Allocation for Tx Queue %u failed\n", i);
@@ -2156,15 +2156,13 @@
/**
* igb_setup_rx_resources - allocate Rx resources (Descriptors)
- * @adapter: board private structure
* @rx_ring: rx descriptor ring (for a specific queue) to setup
*
* Returns 0 on success, negative on failure
**/
-int igb_setup_rx_resources(struct igb_adapter *adapter,
- struct igb_ring *rx_ring)
+int igb_setup_rx_resources(struct igb_ring *rx_ring)
{
- struct pci_dev *pdev = adapter->pdev;
+ struct pci_dev *pdev = rx_ring->pdev;
int size, desc_len;
size = sizeof(struct igb_buffer) * rx_ring->count;
@@ -2192,7 +2190,7 @@
err:
vfree(rx_ring->buffer_info);
- dev_err(&adapter->pdev->dev, "Unable to allocate memory for "
+ dev_err(&pdev->dev, "Unable to allocate memory for "
"the receive descriptor ring\n");
return -ENOMEM;
}
@@ -2209,7 +2207,7 @@
int i, err = 0;
for (i = 0; i < adapter->num_rx_queues; i++) {
- err = igb_setup_rx_resources(adapter, &adapter->rx_ring[i]);
+ err = igb_setup_rx_resources(&adapter->rx_ring[i]);
if (err) {
dev_err(&adapter->pdev->dev,
"Allocation for Rx Queue %u failed\n", i);
@@ -2497,14 +2495,13 @@
**/
void igb_free_tx_resources(struct igb_ring *tx_ring)
{
- struct pci_dev *pdev = tx_ring->q_vector->adapter->pdev;
-
igb_clean_tx_ring(tx_ring);
vfree(tx_ring->buffer_info);
tx_ring->buffer_info = NULL;
- pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma);
+ pci_free_consistent(tx_ring->pdev, tx_ring->size,
+ tx_ring->desc, tx_ring->dma);
tx_ring->desc = NULL;
}
@@ -2523,12 +2520,13 @@
igb_free_tx_resources(&adapter->tx_ring[i]);
}
-static void igb_unmap_and_free_tx_resource(struct igb_adapter *adapter,
+static void igb_unmap_and_free_tx_resource(struct igb_ring *tx_ring,
struct igb_buffer *buffer_info)
{
buffer_info->dma = 0;
if (buffer_info->skb) {
- skb_dma_unmap(&adapter->pdev->dev, buffer_info->skb,
+ skb_dma_unmap(&tx_ring->pdev->dev,
+ buffer_info->skb,
DMA_TO_DEVICE);
dev_kfree_skb_any(buffer_info->skb);
buffer_info->skb = NULL;
@@ -2543,7 +2541,6 @@
**/
static void igb_clean_tx_ring(struct igb_ring *tx_ring)
{
- struct igb_adapter *adapter = tx_ring->q_vector->adapter;
struct igb_buffer *buffer_info;
unsigned long size;
unsigned int i;
@@ -2554,7 +2551,7 @@
for (i = 0; i < tx_ring->count; i++) {
buffer_info = &tx_ring->buffer_info[i];
- igb_unmap_and_free_tx_resource(adapter, buffer_info);
+ igb_unmap_and_free_tx_resource(tx_ring, buffer_info);
}
size = sizeof(struct igb_buffer) * tx_ring->count;
@@ -2591,14 +2588,13 @@
**/
void igb_free_rx_resources(struct igb_ring *rx_ring)
{
- struct pci_dev *pdev = rx_ring->q_vector->adapter->pdev;
-
igb_clean_rx_ring(rx_ring);
vfree(rx_ring->buffer_info);
rx_ring->buffer_info = NULL;
- pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma);
+ pci_free_consistent(rx_ring->pdev, rx_ring->size,
+ rx_ring->desc, rx_ring->dma);
rx_ring->desc = NULL;
}
@@ -2625,7 +2621,6 @@
{
struct igb_adapter *adapter = rx_ring->q_vector->adapter;
struct igb_buffer *buffer_info;
- struct pci_dev *pdev = adapter->pdev;
unsigned long size;
unsigned int i;
@@ -2635,7 +2630,8 @@
for (i = 0; i < rx_ring->count; i++) {
buffer_info = &rx_ring->buffer_info[i];
if (buffer_info->dma) {
- pci_unmap_single(pdev, buffer_info->dma,
+ pci_unmap_single(rx_ring->pdev,
+ buffer_info->dma,
adapter->rx_buffer_len,
PCI_DMA_FROMDEVICE);
buffer_info->dma = 0;
@@ -2646,7 +2642,8 @@
buffer_info->skb = NULL;
}
if (buffer_info->page_dma) {
- pci_unmap_page(pdev, buffer_info->page_dma,
+ pci_unmap_page(rx_ring->pdev,
+ buffer_info->page_dma,
PAGE_SIZE / 2,
PCI_DMA_FROMDEVICE);
buffer_info->page_dma = 0;
@@ -3362,9 +3359,10 @@
struct sk_buff *skb, u32 tx_flags)
{
struct e1000_adv_tx_context_desc *context_desc;
- unsigned int i;
+ struct pci_dev *pdev = tx_ring->pdev;
struct igb_buffer *buffer_info;
u32 info = 0, tu_cmd = 0;
+ unsigned int i;
if ((skb->ip_summed == CHECKSUM_PARTIAL) ||
(tx_flags & IGB_TX_FLAGS_VLAN)) {
@@ -3411,7 +3409,7 @@
break;
default:
if (unlikely(net_ratelimit()))
- dev_warn(&adapter->pdev->dev,
+ dev_warn(&pdev->dev,
"partial checksum but proto=%x!\n",
skb->protocol);
break;
@@ -3443,11 +3441,11 @@
#define IGB_MAX_TXD_PWR 16
#define IGB_MAX_DATA_PER_TXD (1<<IGB_MAX_TXD_PWR)
-static inline int igb_tx_map_adv(struct igb_adapter *adapter,
- struct igb_ring *tx_ring, struct sk_buff *skb,
+static inline int igb_tx_map_adv(struct igb_ring *tx_ring, struct sk_buff *skb,
unsigned int first)
{
struct igb_buffer *buffer_info;
+ struct pci_dev *pdev = tx_ring->pdev;
unsigned int len = skb_headlen(skb);
unsigned int count = 0, i;
unsigned int f;
@@ -3455,8 +3453,8 @@
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");
+ if (skb_dma_map(&pdev->dev, skb, DMA_TO_DEVICE)) {
+ dev_err(&pdev->dev, "TX DMA map failed\n");
return 0;
}
@@ -3667,7 +3665,7 @@
* count reflects descriptors mapped, if 0 then mapping error
* has occured and we need to rewind the descriptor queue
*/
- count = igb_tx_map_adv(adapter, tx_ring, skb, first);
+ count = igb_tx_map_adv(tx_ring, skb, first);
if (count) {
igb_tx_queue_adv(adapter, tx_ring, tx_flags, count,
@@ -4710,7 +4708,7 @@
igb_tx_hwtstamp(adapter, skb);
}
- igb_unmap_and_free_tx_resource(adapter, buffer_info);
+ igb_unmap_and_free_tx_resource(tx_ring, buffer_info);
tx_desc->wb.status = 0;
i++;
@@ -4748,7 +4746,7 @@
E1000_STATUS_TXOFF)) {
/* detected Tx unit hang */
- dev_err(&adapter->pdev->dev,
+ dev_err(&tx_ring->pdev->dev,
"Detected Tx Unit Hang\n"
" Tx Queue <%d>\n"
" TDH <%x>\n"
@@ -4851,7 +4849,7 @@
struct net_device *netdev = adapter->netdev;
struct igb_ring *rx_ring = q_vector->rx_ring;
struct e1000_hw *hw = &adapter->hw;
- struct pci_dev *pdev = adapter->pdev;
+ struct pci_dev *pdev = rx_ring->pdev;
union e1000_adv_rx_desc *rx_desc , *next_rxd;
struct igb_buffer *buffer_info , *next_buffer;
struct sk_buff *skb;
@@ -5027,7 +5025,6 @@
{
struct igb_adapter *adapter = rx_ring->q_vector->adapter;
struct net_device *netdev = adapter->netdev;
- struct pci_dev *pdev = adapter->pdev;
union e1000_adv_rx_desc *rx_desc;
struct igb_buffer *buffer_info;
struct sk_buff *skb;
@@ -5054,7 +5051,7 @@
buffer_info->page_offset ^= PAGE_SIZE / 2;
}
buffer_info->page_dma =
- pci_map_page(pdev, buffer_info->page,
+ pci_map_page(rx_ring->pdev, buffer_info->page,
buffer_info->page_offset,
PAGE_SIZE / 2,
PCI_DMA_FROMDEVICE);
@@ -5068,7 +5065,8 @@
}
buffer_info->skb = skb;
- buffer_info->dma = pci_map_single(pdev, skb->data,
+ buffer_info->dma = pci_map_single(rx_ring->pdev,
+ skb->data,
bufsz,
PCI_DMA_FROMDEVICE);
}