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Subject[PATCH v3 10/13] net; ethernet: ti: cpsw: move irq stuff under cpsw_common
Date
The irq data are common for net devs in dual_emac mode. So no need to
hold these data in every priv struct, move them under cpsw_common.
Also delete irq_num var, as after optimization it's not needed.
Correct number of irqs to 2, as anyway, driver is using only 2,
at least for now.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
---
drivers/net/ethernet/ti/cpsw.c | 65 +++++++++++++++++++-----------------------
1 file changed, 29 insertions(+), 36 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 6d99d1e..b2482b6 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -143,6 +143,7 @@ do { \
#define cpsw_slave_index(priv) \
((priv->data.dual_emac) ? priv->emac_port : \
priv->data.active_slave)
+#define IRQ_NUM 2

static int debug_level;
module_param(debug_level, int, 0);
@@ -371,6 +372,10 @@ struct cpsw_common {
struct cpsw_host_regs __iomem *host_port_regs;
struct cpdma_ctlr *dma;
struct cpdma_chan *txch, *rxch;
+ bool quirk_irq;
+ bool rx_irq_disabled;
+ bool tx_irq_disabled;
+ u32 irqs_table[IRQ_NUM];
};

struct cpsw_priv {
@@ -389,12 +394,6 @@ struct cpsw_priv {
struct cpsw_ale *ale;
bool rx_pause;
bool tx_pause;
- bool quirk_irq;
- bool rx_irq_disabled;
- bool tx_irq_disabled;
- /* snapshot of IRQ numbers */
- u32 irqs_table[4];
- u32 num_irqs;
struct cpts *cpts;
u32 emac_port;
struct cpsw_common *cpsw;
@@ -756,9 +755,9 @@ static irqreturn_t cpsw_tx_interrupt(int irq, void *dev_id)
writel(0, &cpsw->wr_regs->tx_en);
cpdma_ctlr_eoi(cpsw->dma, CPDMA_EOI_TX);

- if (priv->quirk_irq) {
- disable_irq_nosync(priv->irqs_table[1]);
- priv->tx_irq_disabled = true;
+ if (cpsw->quirk_irq) {
+ disable_irq_nosync(cpsw->irqs_table[1]);
+ cpsw->tx_irq_disabled = true;
}

napi_schedule(&priv->napi_tx);
@@ -773,9 +772,9 @@ static irqreturn_t cpsw_rx_interrupt(int irq, void *dev_id)
cpdma_ctlr_eoi(cpsw->dma, CPDMA_EOI_RX);
writel(0, &cpsw->wr_regs->rx_en);

- if (priv->quirk_irq) {
- disable_irq_nosync(priv->irqs_table[0]);
- priv->rx_irq_disabled = true;
+ if (cpsw->quirk_irq) {
+ disable_irq_nosync(cpsw->irqs_table[0]);
+ cpsw->rx_irq_disabled = true;
}

napi_schedule(&priv->napi_rx);
@@ -792,9 +791,9 @@ static int cpsw_tx_poll(struct napi_struct *napi_tx, int budget)
if (num_tx < budget) {
napi_complete(napi_tx);
writel(0xff, &cpsw->wr_regs->tx_en);
- if (priv->quirk_irq && priv->tx_irq_disabled) {
- priv->tx_irq_disabled = false;
- enable_irq(priv->irqs_table[1]);
+ if (cpsw->quirk_irq && cpsw->tx_irq_disabled) {
+ cpsw->tx_irq_disabled = false;
+ enable_irq(cpsw->irqs_table[1]);
}
}

@@ -811,9 +810,9 @@ static int cpsw_rx_poll(struct napi_struct *napi_rx, int budget)
if (num_rx < budget) {
napi_complete(napi_rx);
writel(0xff, &cpsw->wr_regs->rx_en);
- if (priv->quirk_irq && priv->rx_irq_disabled) {
- priv->rx_irq_disabled = false;
- enable_irq(priv->irqs_table[0]);
+ if (cpsw->quirk_irq && cpsw->rx_irq_disabled) {
+ cpsw->rx_irq_disabled = false;
+ enable_irq(cpsw->irqs_table[0]);
}
}

@@ -1299,14 +1298,14 @@ static int cpsw_ndo_open(struct net_device *ndev)
napi_enable(&priv_sl0->napi_rx);
napi_enable(&priv_sl0->napi_tx);

- if (priv_sl0->tx_irq_disabled) {
- priv_sl0->tx_irq_disabled = false;
- enable_irq(priv->irqs_table[1]);
+ if (cpsw->tx_irq_disabled) {
+ cpsw->tx_irq_disabled = false;
+ enable_irq(cpsw->irqs_table[1]);
}

- if (priv_sl0->rx_irq_disabled) {
- priv_sl0->rx_irq_disabled = false;
- enable_irq(priv->irqs_table[0]);
+ if (cpsw->rx_irq_disabled) {
+ cpsw->rx_irq_disabled = false;
+ enable_irq(cpsw->irqs_table[0]);
}

buf_num = cpdma_chan_get_rx_buf_num(cpsw->dma);
@@ -1655,8 +1654,8 @@ static void cpsw_ndo_poll_controller(struct net_device *ndev)
struct cpsw_common *cpsw = priv->cpsw;

cpsw_intr_disable(priv->cpsw);
- cpsw_rx_interrupt(priv->irqs_table[0], priv);
- cpsw_tx_interrupt(priv->irqs_table[1], priv);
+ cpsw_rx_interrupt(cpsw->irqs_table[0], priv);
+ cpsw_tx_interrupt(cpsw->irqs_table[1], priv);
cpsw_intr_enable(priv->cpsw);
}
#endif
@@ -2173,7 +2172,7 @@ static int cpsw_probe_dual_emac(struct cpsw_priv *priv)
struct cpsw_platform_data *data = &priv->data;
struct net_device *ndev;
struct cpsw_priv *priv_sl2;
- int ret = 0, i;
+ int ret = 0;
struct cpsw_common *cpsw = priv->cpsw;

ndev = alloc_etherdev(sizeof(struct cpsw_priv));
@@ -2210,11 +2209,6 @@ static int cpsw_probe_dual_emac(struct cpsw_priv *priv)
priv->slaves[1].ndev = ndev;
priv_sl2->cpts = priv->cpts;
priv_sl2->version = priv->version;
-
- for (i = 0; i < priv->num_irqs; i++) {
- priv_sl2->irqs_table[i] = priv->irqs_table[i];
- priv_sl2->num_irqs = priv->num_irqs;
- }
ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;

ndev->netdev_ops = &cpsw_netdev_ops;
@@ -2489,7 +2483,7 @@ static int cpsw_probe(struct platform_device *pdev)
if (of_id) {
pdev->id_entry = of_id->data;
if (pdev->id_entry->driver_data)
- priv->quirk_irq = true;
+ cpsw->quirk_irq = true;
}

/* Grab RX and TX IRQs. Note that we also have RX_THRESHOLD and
@@ -2507,7 +2501,7 @@ static int cpsw_probe(struct platform_device *pdev)
goto clean_ale_ret;
}

- priv->irqs_table[0] = irq;
+ cpsw->irqs_table[0] = irq;
ret = devm_request_irq(&pdev->dev, irq, cpsw_rx_interrupt,
0, dev_name(&pdev->dev), priv);
if (ret < 0) {
@@ -2522,14 +2516,13 @@ static int cpsw_probe(struct platform_device *pdev)
goto clean_ale_ret;
}

- priv->irqs_table[1] = irq;
+ cpsw->irqs_table[1] = irq;
ret = devm_request_irq(&pdev->dev, irq, cpsw_tx_interrupt,
0, dev_name(&pdev->dev), priv);
if (ret < 0) {
dev_err(priv->dev, "error attaching irq (%d)\n", ret);
goto clean_ale_ret;
}
- priv->num_irqs = 2;

ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;

--
1.9.1
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