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| author | Noam Camus <noamc@ezchip.com> | 2015-08-20 08:00:01 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-08-23 16:08:53 -0700 |
| commit | 0dd20f3ce04e75521bd3f9867ecbc852ab348912 (patch) | |
| tree | 231fc9ce3ad2d7ee351a4c047aac1e04165bdd34 /drivers/net/ethernet/ezchip | |
| parent | 1728369e8c57f27e0374f4702cbfdb9196bc586b (diff) | |
| download | linux-0dd20f3ce04e75521bd3f9867ecbc852ab348912.tar.gz linux-0dd20f3ce04e75521bd3f9867ecbc852ab348912.tar.bz2 linux-0dd20f3ce04e75521bd3f9867ecbc852ab348912.zip | |
NET: nps_enet: replace use of cause register
When interrupt is received we read directly from control
register for RX/TX instead of reading cause register
since this register fails to indicate TX done when
TX interrupt is "edge mode".
Signed-off-by: Noam Camus <noamc@ezchip.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.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/ezchip/nps_enet.h | 20 |
2 files changed, 5 insertions, 24 deletions
diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c index 24a85b292007..0e652b4fee8d 100644 --- a/drivers/net/ethernet/ezchip/nps_enet.c +++ b/drivers/net/ethernet/ezchip/nps_enet.c @@ -211,12 +211,13 @@ 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); - struct nps_enet_buf_int_cause buf_int_cause; + struct nps_enet_rx_ctl rx_ctrl; + struct nps_enet_tx_ctl tx_ctrl; - buf_int_cause.value = - nps_enet_reg_get(priv, NPS_ENET_REG_BUF_INT_CAUSE); + rx_ctrl.value = nps_enet_reg_get(priv, NPS_ENET_REG_RX_CTL); + tx_ctrl.value = nps_enet_reg_get(priv, NPS_ENET_REG_TX_CTL); - if (buf_int_cause.tx_done || buf_int_cause.rx_rdy) + if ((!tx_ctrl.ct && priv->tx_packet_sent) || 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); diff --git a/drivers/net/ethernet/ezchip/nps_enet.h b/drivers/net/ethernet/ezchip/nps_enet.h index fc45c9daa1c2..6703674d679c 100644 --- a/drivers/net/ethernet/ezchip/nps_enet.h +++ b/drivers/net/ethernet/ezchip/nps_enet.h @@ -36,7 +36,6 @@ #define NPS_ENET_REG_RX_CTL 0x810 #define NPS_ENET_REG_RX_BUF 0x818 #define NPS_ENET_REG_BUF_INT_ENABLE 0x8C0 -#define NPS_ENET_REG_BUF_INT_CAUSE 0x8C4 #define NPS_ENET_REG_GE_MAC_CFG_0 0x1000 #define NPS_ENET_REG_GE_MAC_CFG_1 0x1004 #define NPS_ENET_REG_GE_MAC_CFG_2 0x1008 @@ -108,25 +107,6 @@ struct nps_enet_buf_int_enable { }; }; -/* Interrupt cause for data buffer events register */ -struct nps_enet_buf_int_cause { - union { - /* tx_done: Interrupt in the case when current frame was - * read from TX buffer. - * rx_rdy: Interrupt in the case when new frame is ready - * in RX buffer. - */ - struct { - u32 - __reserved:30, - tx_done:1, - rx_rdy:1; - }; - - u32 value; - }; -}; - /* Gbps Eth MAC Configuration 0 register */ struct nps_enet_ge_mac_cfg_0 { union { |