Skip to content

Commit

Permalink
ethernet/intel: Use napi_alloc_skb
Browse files Browse the repository at this point in the history
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>
  • Loading branch information
Alexander Duyck authored and David S. Miller committed Dec 10, 2014
1 parent fd11a83 commit 67fd893
Show file tree
Hide file tree
Showing 6 changed files with 10 additions and 11 deletions.
2 changes: 1 addition & 1 deletion drivers/net/ethernet/intel/e1000/e1000_main.c
Original file line number Diff line number Diff line change
Expand Up @@ -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++;
Expand Down
2 changes: 1 addition & 1 deletion drivers/net/ethernet/intel/e1000e/netdev.c
Original file line number Diff line number Diff line change
Expand Up @@ -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,
Expand Down
4 changes: 2 additions & 2 deletions drivers/net/ethernet/intel/fm10k/fm10k_main.c
Original file line number Diff line number Diff line change
Expand Up @@ -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;
Expand Down
3 changes: 1 addition & 2 deletions drivers/net/ethernet/intel/igb/igb_main.c
Original file line number Diff line number Diff line change
Expand Up @@ -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;
Expand Down
6 changes: 3 additions & 3 deletions drivers/net/ethernet/intel/ixgb/ixgb_main.c
Original file line number Diff line number Diff line change
Expand Up @@ -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)
{
Expand All @@ -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;

Expand Down Expand Up @@ -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);
Expand Down
4 changes: 2 additions & 2 deletions drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
Original file line number Diff line number Diff line change
Expand Up @@ -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;
Expand Down

0 comments on commit 67fd893

Please sign in to comment.