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Date: Tue, 09 Dec 2014 19:40:56 -0800
From: Alexander Duyck <alexander.h.duyck@...hat.com>
To: netdev@...r.kernel.org
Cc: brouer@...hat.com, ast@...mgrid.com,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
eric.dumazet@...il.com, davem@...emloft.net
Subject: [net-next PATCH 3/6] 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@...el.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@...hat.com>
---
drivers/net/ethernet/intel/e1000/e1000_main.c | 2 +-
drivers/net/ethernet/intel/e1000e/netdev.c | 2 +-
drivers/net/ethernet/intel/fm10k/fm10k_main.c | 4 ++--
drivers/net/ethernet/intel/igb/igb_main.c | 3 +--
drivers/net/ethernet/intel/ixgb/ixgb_main.c | 6 +++---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 4 ++--
6 files changed, 10 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 862d198..83140cb 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -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++;
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 88936aa..5c82c80 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -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,
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
index f0d9d6c..3418665 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
@@ -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;
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index bfd60577..675a330 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -6641,8 +6641,7 @@ 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;
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
index 055961b..aa87605 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
@@ -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);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 94feddf..d75d01b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1909,8 +1909,8 @@ 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;
--
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