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authorElad Kanfi <eladkan@mellanox.com>2016-07-13 16:58:07 +0300
committerDavid S. Miller <davem@davemloft.net>2016-07-14 06:59:06 +0300
commit094f57aafa3c73329f0c887111d2e596b1aee8ba (patch)
tree4c595e74392b0bae03ef20ca06192ad0135bccb4 /drivers/net/ethernet/ezchip
parentddbff3e8dde8b6a266eccd4312c6b16ae8aa1d2d (diff)
downloadlinux-094f57aafa3c73329f0c887111d2e596b1aee8ba.tar.xz
net: nps_enet: code reuse
Add inline function that checks if there is a pending tx packet. Signed-off-by: Elad Kanfi <eladkan@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ezchip')
-rw-r--r--drivers/net/ethernet/ezchip/nps_enet.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c
index b182e2a4ecb7..25faa3dca9c0 100644
--- a/drivers/net/ethernet/ezchip/nps_enet.c
+++ b/drivers/net/ethernet/ezchip/nps_enet.c
@@ -24,6 +24,14 @@
#define DRV_NAME "nps_mgt_enet"
+static inline bool nps_enet_is_tx_pending(struct nps_enet_priv *priv)
+{
+ u32 tx_ctrl_value = nps_enet_reg_get(priv, NPS_ENET_REG_TX_CTL);
+ u32 tx_ctrl_ct = (tx_ctrl_value & TX_CTL_CT_MASK) >> TX_CTL_CT_SHIFT;
+
+ return (!tx_ctrl_ct && priv->tx_skb);
+}
+
static void nps_enet_clean_rx_fifo(struct net_device *ndev, u32 frame_len)
{
struct nps_enet_priv *priv = netdev_priv(ndev);
@@ -141,12 +149,11 @@ static void nps_enet_tx_handler(struct net_device *ndev)
{
struct nps_enet_priv *priv = netdev_priv(ndev);
u32 tx_ctrl_value = nps_enet_reg_get(priv, NPS_ENET_REG_TX_CTL);
- u32 tx_ctrl_ct = (tx_ctrl_value & TX_CTL_CT_MASK) >> TX_CTL_CT_SHIFT;
u32 tx_ctrl_et = (tx_ctrl_value & TX_CTL_ET_MASK) >> TX_CTL_ET_SHIFT;
u32 tx_ctrl_nt = (tx_ctrl_value & TX_CTL_NT_MASK) >> TX_CTL_NT_SHIFT;
/* Check if we got TX */
- if (!priv->tx_skb || tx_ctrl_ct)
+ if (!nps_enet_is_tx_pending(priv))
return;
/* Ack Tx ctrl register */
@@ -184,9 +191,6 @@ static int nps_enet_poll(struct napi_struct *napi, int budget)
work_done = nps_enet_rx_handler(ndev);
if (work_done < budget) {
u32 buf_int_enable_value = 0;
- u32 tx_ctrl_value = nps_enet_reg_get(priv, NPS_ENET_REG_TX_CTL);
- u32 tx_ctrl_ct =
- (tx_ctrl_value & TX_CTL_CT_MASK) >> TX_CTL_CT_SHIFT;
napi_complete(napi);
@@ -205,8 +209,7 @@ static int nps_enet_poll(struct napi_struct *napi, int budget)
* the two code lines below will solve this situation by
* re-adding ourselves to the poll list.
*/
-
- if (priv->tx_skb && !tx_ctrl_ct) {
+ if (nps_enet_is_tx_pending(priv)) {
nps_enet_reg_set(priv, NPS_ENET_REG_BUF_INT_ENABLE, 0);
napi_reschedule(napi);
}
@@ -231,11 +234,9 @@ static irqreturn_t nps_enet_irq_handler(s32 irq, void *dev_instance)
struct net_device *ndev = dev_instance;
struct nps_enet_priv *priv = netdev_priv(ndev);
u32 rx_ctrl_value = nps_enet_reg_get(priv, NPS_ENET_REG_RX_CTL);
- u32 tx_ctrl_value = nps_enet_reg_get(priv, NPS_ENET_REG_TX_CTL);
- u32 tx_ctrl_ct = (tx_ctrl_value & TX_CTL_CT_MASK) >> TX_CTL_CT_SHIFT;
u32 rx_ctrl_cr = (rx_ctrl_value & RX_CTL_CR_MASK) >> RX_CTL_CR_SHIFT;
- if ((!tx_ctrl_ct && priv->tx_skb) || rx_ctrl_cr)
+ if (nps_enet_is_tx_pending(priv) || rx_ctrl_cr)
if (likely(napi_schedule_prep(&priv->napi))) {
nps_enet_reg_set(priv, NPS_ENET_REG_BUF_INT_ENABLE, 0);
__napi_schedule(&priv->napi);