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ethernet/intel: Use napi_alloc_skb 

This change replaces calls to netdev_alloc_skb_ip_align with
napi_alloc_skb.  The advantage of napi_alloc_skb is currently the fact that
the page allocation doesn't make use of any irq disable calls.

There are few spots where I couldn't replace the calls as the buffer
allocation routine is called as a part of init which is outside of the
softirq context.

Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2014-12-09 19:40:56 -08:00 committed by David S. Miller
parent fd11a83dd3
commit 67fd893ee0
6 changed files with 10 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/intel/e1000/e1000_main.c
View File

@ -4100,7 +4100,7 @@ static bool e1000_tbi_should_accept(struct e1000_adapter *adapter,
static struct sk_buff *e1000_alloc_rx_skb(struct e1000_adapter *adapter,
unsigned int bufsz)
{
struct sk_buff *skb = netdev_alloc_skb_ip_align(adapter->netdev, bufsz);
struct sk_buff *skb = napi_alloc_skb(&adapter->napi, bufsz);
if (unlikely(!skb))
adapter->alloc_rx_buff_failed++;

2
drivers/net/ethernet/intel/e1000e/netdev.c
View File

@ -1016,7 +1016,7 @@ static bool e1000_clean_rx_irq(struct e1000_ring *rx_ring, int *work_done,
*/
if (length < copybreak) {
struct sk_buff *new_skb =
netdev_alloc_skb_ip_align(netdev, length);
napi_alloc_skb(&adapter->napi, length);
if (new_skb) {
skb_copy_to_linear_data_offset(new_skb,
-NET_IP_ALIGN,

4
drivers/net/ethernet/intel/fm10k/fm10k_main.c
View File

@ -308,8 +308,8 @@ static struct sk_buff *fm10k_fetch_rx_buffer(struct fm10k_ring *rx_ring,
#endif
/* allocate a skb to store the frags */
skb = netdev_alloc_skb_ip_align(rx_ring->netdev,
FM10K_RX_HDR_LEN);
skb = napi_alloc_skb(&rx_ring->q_vector->napi,
FM10K_RX_HDR_LEN);
if (unlikely(!skb)) {
rx_ring->rx_stats.alloc_failed++;
return NULL;

3
drivers/net/ethernet/intel/igb/igb_main.c
View File

@ -6644,8 +6644,7 @@ static struct sk_buff *igb_fetch_rx_buffer(struct igb_ring *rx_ring,
#endif
/* allocate a skb to store the frags */
skb = netdev_alloc_skb_ip_align(rx_ring->netdev,
IGB_RX_HDR_LEN);
skb = napi_alloc_skb(&rx_ring->q_vector->napi, IGB_RX_HDR_LEN);
if (unlikely(!skb)) {
rx_ring->rx_stats.alloc_failed++;
return NULL;

6
drivers/net/ethernet/intel/ixgb/ixgb_main.c
View File

@ -1963,7 +1963,7 @@ ixgb_rx_checksum(struct ixgb_adapter *adapter,
* this should improve performance for small packets with large amounts
* of reassembly being done in the stack
*/
static void ixgb_check_copybreak(struct net_device *netdev,
static void ixgb_check_copybreak(struct napi_struct *napi,
struct ixgb_buffer *buffer_info,
u32 length, struct sk_buff **skb)
{
@ -1972,7 +1972,7 @@ static void ixgb_check_copybreak(struct net_device *netdev,
if (length > copybreak)
return;
new_skb = netdev_alloc_skb_ip_align(netdev, length);
new_skb = napi_alloc_skb(napi, length);
if (!new_skb)
return;
@ -2064,7 +2064,7 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter, int *work_done, int work_to_do)
goto rxdesc_done;
}
ixgb_check_copybreak(netdev, buffer_info, length, &skb);
ixgb_check_copybreak(&adapter->napi, buffer_info, length, &skb);
/* Good Receive */
skb_put(skb, length);

4
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View File

@ -1913,8 +1913,8 @@ static struct sk_buff *ixgbe_fetch_rx_buffer(struct ixgbe_ring *rx_ring,
#endif
/* allocate a skb to store the frags */
skb = netdev_alloc_skb_ip_align(rx_ring->netdev,
IXGBE_RX_HDR_SIZE);
skb = napi_alloc_skb(&rx_ring->q_vector->napi,
IXGBE_RX_HDR_SIZE);
if (unlikely(!skb)) {
rx_ring->rx_stats.alloc_rx_buff_failed++;
return NULL;