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-rw-r--r--drivers/net/ethernet/ti/cpsw.c97
1 files changed, 48 insertions, 49 deletions
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 5db2a554fc2c..6d99d1e614f5 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -369,6 +369,8 @@ struct cpsw_common {
struct cpsw_wr_regs __iomem *wr_regs;
u8 __iomem *hw_stats;
struct cpsw_host_regs __iomem *host_port_regs;
+ struct cpdma_ctlr *dma;
+ struct cpdma_chan *txch, *rxch;
};
struct cpsw_priv {
@@ -384,8 +386,6 @@ struct cpsw_priv {
int rx_packet_max;
u8 mac_addr[ETH_ALEN];
struct cpsw_slave *slaves;
- struct cpdma_ctlr *dma;
- struct cpdma_chan *txch, *rxch;
struct cpsw_ale *ale;
bool rx_pause;
bool tx_pause;
@@ -654,25 +654,21 @@ static void cpsw_ndo_set_rx_mode(struct net_device *ndev)
}
}
-static void cpsw_intr_enable(struct cpsw_priv *priv)
+static void cpsw_intr_enable(struct cpsw_common *cpsw)
{
- struct cpsw_common *cpsw = priv->cpsw;
-
__raw_writel(0xFF, &cpsw->wr_regs->tx_en);
__raw_writel(0xFF, &cpsw->wr_regs->rx_en);
- cpdma_ctlr_int_ctrl(priv->dma, true);
+ cpdma_ctlr_int_ctrl(cpsw->dma, true);
return;
}
-static void cpsw_intr_disable(struct cpsw_priv *priv)
+static void cpsw_intr_disable(struct cpsw_common *cpsw)
{
- struct cpsw_common *cpsw = priv->cpsw;
-
__raw_writel(0, &cpsw->wr_regs->tx_en);
__raw_writel(0, &cpsw->wr_regs->rx_en);
- cpdma_ctlr_int_ctrl(priv->dma, false);
+ cpdma_ctlr_int_ctrl(cpsw->dma, false);
return;
}
@@ -700,6 +696,7 @@ static void cpsw_rx_handler(void *token, int len, int status)
struct net_device *ndev = skb->dev;
struct cpsw_priv *priv = netdev_priv(ndev);
int ret = 0;
+ struct cpsw_common *cpsw = priv->cpsw;
cpsw_dual_emac_src_port_detect(status, priv, ndev, skb);
@@ -745,8 +742,8 @@ static void cpsw_rx_handler(void *token, int len, int status)
}
requeue:
- ret = cpdma_chan_submit(priv->rxch, new_skb, new_skb->data,
- skb_tailroom(new_skb), 0);
+ ret = cpdma_chan_submit(cpsw->rxch, new_skb, new_skb->data,
+ skb_tailroom(new_skb), 0);
if (WARN_ON(ret < 0))
dev_kfree_skb_any(new_skb);
}
@@ -757,7 +754,7 @@ static irqreturn_t cpsw_tx_interrupt(int irq, void *dev_id)
struct cpsw_common *cpsw = priv->cpsw;
writel(0, &cpsw->wr_regs->tx_en);
- cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
+ cpdma_ctlr_eoi(cpsw->dma, CPDMA_EOI_TX);
if (priv->quirk_irq) {
disable_irq_nosync(priv->irqs_table[1]);
@@ -773,7 +770,7 @@ static irqreturn_t cpsw_rx_interrupt(int irq, void *dev_id)
struct cpsw_priv *priv = dev_id;
struct cpsw_common *cpsw = priv->cpsw;
- cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
+ cpdma_ctlr_eoi(cpsw->dma, CPDMA_EOI_RX);
writel(0, &cpsw->wr_regs->rx_en);
if (priv->quirk_irq) {
@@ -791,7 +788,7 @@ static int cpsw_tx_poll(struct napi_struct *napi_tx, int budget)
int num_tx;
struct cpsw_common *cpsw = priv->cpsw;
- num_tx = cpdma_chan_process(priv->txch, budget);
+ num_tx = cpdma_chan_process(cpsw->txch, budget);
if (num_tx < budget) {
napi_complete(napi_tx);
writel(0xff, &cpsw->wr_regs->tx_en);
@@ -810,7 +807,7 @@ static int cpsw_rx_poll(struct napi_struct *napi_rx, int budget)
int num_rx;
struct cpsw_common *cpsw = priv->cpsw;
- num_rx = cpdma_chan_process(priv->rxch, budget);
+ num_rx = cpdma_chan_process(cpsw->rxch, budget);
if (num_rx < budget) {
napi_complete(napi_rx);
writel(0xff, &cpsw->wr_regs->rx_en);
@@ -1020,17 +1017,16 @@ static void cpsw_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
static void cpsw_get_ethtool_stats(struct net_device *ndev,
struct ethtool_stats *stats, u64 *data)
{
- struct cpsw_priv *priv = netdev_priv(ndev);
struct cpdma_chan_stats rx_stats;
struct cpdma_chan_stats tx_stats;
u32 val;
u8 *p;
int i;
- struct cpsw_common *cpsw = priv->cpsw;
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
/* Collect Davinci CPDMA stats for Rx and Tx Channel */
- cpdma_chan_get_stats(priv->rxch, &rx_stats);
- cpdma_chan_get_stats(priv->txch, &tx_stats);
+ cpdma_chan_get_stats(cpsw->rxch, &rx_stats);
+ cpdma_chan_get_stats(cpsw->txch, &tx_stats);
for (i = 0; i < CPSW_STATS_LEN; i++) {
switch (cpsw_gstrings_stats[i].type) {
@@ -1073,7 +1069,9 @@ static int cpsw_common_res_usage_state(struct cpsw_priv *priv)
static inline int cpsw_tx_packet_submit(struct cpsw_priv *priv,
struct sk_buff *skb)
{
- return cpdma_chan_submit(priv->txch, skb, skb->data, skb->len,
+ struct cpsw_common *cpsw = priv->cpsw;
+
+ return cpdma_chan_submit(cpsw->txch, skb, skb->data, skb->len,
priv->emac_port + priv->data.dual_emac);
}
@@ -1260,7 +1258,7 @@ static int cpsw_ndo_open(struct net_device *ndev)
}
if (!cpsw_common_res_usage_state(priv))
- cpsw_intr_disable(priv);
+ cpsw_intr_disable(cpsw);
netif_carrier_off(ndev);
reg = priv->version;
@@ -1286,8 +1284,8 @@ static int cpsw_ndo_open(struct net_device *ndev)
int buf_num;
/* setup tx dma to fixed prio and zero offset */
- cpdma_control_set(priv->dma, CPDMA_TX_PRIO_FIXED, 1);
- cpdma_control_set(priv->dma, CPDMA_RX_BUFFER_OFFSET, 0);
+ cpdma_control_set(cpsw->dma, CPDMA_TX_PRIO_FIXED, 1);
+ cpdma_control_set(cpsw->dma, CPDMA_RX_BUFFER_OFFSET, 0);
/* disable priority elevation */
__raw_writel(0, &cpsw->regs->ptype);
@@ -1311,7 +1309,7 @@ static int cpsw_ndo_open(struct net_device *ndev)
enable_irq(priv->irqs_table[0]);
}
- buf_num = cpdma_chan_get_rx_buf_num(priv->dma);
+ buf_num = cpdma_chan_get_rx_buf_num(cpsw->dma);
for (i = 0; i < buf_num; i++) {
struct sk_buff *skb;
@@ -1320,8 +1318,8 @@ static int cpsw_ndo_open(struct net_device *ndev)
priv->rx_packet_max, GFP_KERNEL);
if (!skb)
goto err_cleanup;
- ret = cpdma_chan_submit(priv->rxch, skb, skb->data,
- skb_tailroom(skb), 0);
+ ret = cpdma_chan_submit(cpsw->rxch, skb, skb->data,
+ skb_tailroom(skb), 0);
if (ret < 0) {
kfree_skb(skb);
goto err_cleanup;
@@ -1347,15 +1345,15 @@ static int cpsw_ndo_open(struct net_device *ndev)
cpsw_set_coalesce(ndev, &coal);
}
- cpdma_ctlr_start(priv->dma);
- cpsw_intr_enable(priv);
+ cpdma_ctlr_start(cpsw->dma);
+ cpsw_intr_enable(cpsw);
if (priv->data.dual_emac)
priv->slaves[priv->emac_port].open_stat = true;
return 0;
err_cleanup:
- cpdma_ctlr_stop(priv->dma);
+ cpdma_ctlr_stop(cpsw->dma);
for_each_slave(priv, cpsw_slave_stop, priv);
pm_runtime_put_sync(cpsw->dev);
netif_carrier_off(priv->ndev);
@@ -1377,8 +1375,8 @@ static int cpsw_ndo_stop(struct net_device *ndev)
napi_disable(&priv_sl0->napi_rx);
napi_disable(&priv_sl0->napi_tx);
cpts_unregister(priv->cpts);
- cpsw_intr_disable(priv);
- cpdma_ctlr_stop(priv->dma);
+ cpsw_intr_disable(cpsw);
+ cpdma_ctlr_stop(cpsw->dma);
cpsw_ale_stop(priv->ale);
}
for_each_slave(priv, cpsw_slave_stop, priv);
@@ -1393,6 +1391,7 @@ static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb,
{
struct cpsw_priv *priv = netdev_priv(ndev);
int ret;
+ struct cpsw_common *cpsw = priv->cpsw;
netif_trans_update(ndev);
@@ -1417,7 +1416,7 @@ static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb,
/* If there is no more tx desc left free then we need to
* tell the kernel to stop sending us tx frames.
*/
- if (unlikely(!cpdma_check_free_tx_desc(priv->txch)))
+ if (unlikely(!cpdma_check_free_tx_desc(cpsw->txch)))
netif_stop_queue(ndev);
return NETDEV_TX_OK;
@@ -1602,13 +1601,14 @@ static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
static void cpsw_ndo_tx_timeout(struct net_device *ndev)
{
struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
cpsw_err(priv, tx_err, "transmit timeout, restarting dma\n");
ndev->stats.tx_errors++;
- cpsw_intr_disable(priv);
- cpdma_chan_stop(priv->txch);
- cpdma_chan_start(priv->txch);
- cpsw_intr_enable(priv);
+ cpsw_intr_disable(cpsw);
+ cpdma_chan_stop(cpsw->txch);
+ cpdma_chan_start(cpsw->txch);
+ cpsw_intr_enable(cpsw);
}
static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p)
@@ -1652,11 +1652,12 @@ static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p)
static void cpsw_ndo_poll_controller(struct net_device *ndev)
{
struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
- cpsw_intr_disable(priv);
+ cpsw_intr_disable(priv->cpsw);
cpsw_rx_interrupt(priv->irqs_table[0], priv);
cpsw_tx_interrupt(priv->irqs_table[1], priv);
- cpsw_intr_enable(priv);
+ cpsw_intr_enable(priv->cpsw);
}
#endif
@@ -2204,9 +2205,6 @@ static int cpsw_probe_dual_emac(struct cpsw_priv *priv)
priv_sl2->slaves = priv->slaves;
priv_sl2->coal_intvl = 0;
priv_sl2->bus_freq_mhz = priv->bus_freq_mhz;
- priv_sl2->dma = priv->dma;
- priv_sl2->txch = priv->txch;
- priv_sl2->rxch = priv->rxch;
priv_sl2->ale = priv->ale;
priv_sl2->emac_port = 1;
priv->slaves[1].ndev = ndev;
@@ -2450,19 +2448,19 @@ static int cpsw_probe(struct platform_device *pdev)
dma_params.has_ext_regs = true;
dma_params.desc_hw_addr = dma_params.desc_mem_phys;
- priv->dma = cpdma_ctlr_create(&dma_params);
- if (!priv->dma) {
+ cpsw->dma = cpdma_ctlr_create(&dma_params);
+ if (!cpsw->dma) {
dev_err(priv->dev, "error initializing dma\n");
ret = -ENOMEM;
goto clean_runtime_disable_ret;
}
- priv->txch = cpdma_chan_create(priv->dma, tx_chan_num(0),
+ cpsw->txch = cpdma_chan_create(cpsw->dma, tx_chan_num(0),
cpsw_tx_handler);
- priv->rxch = cpdma_chan_create(priv->dma, rx_chan_num(0),
+ cpsw->rxch = cpdma_chan_create(cpsw->dma, rx_chan_num(0),
cpsw_rx_handler);
- if (WARN_ON(!priv->txch || !priv->rxch)) {
+ if (WARN_ON(!cpsw->txch || !cpsw->rxch)) {
dev_err(priv->dev, "error initializing dma channels\n");
ret = -ENOMEM;
goto clean_dma_ret;
@@ -2565,7 +2563,7 @@ static int cpsw_probe(struct platform_device *pdev)
clean_ale_ret:
cpsw_ale_destroy(priv->ale);
clean_dma_ret:
- cpdma_ctlr_destroy(priv->dma);
+ cpdma_ctlr_destroy(cpsw->dma);
clean_runtime_disable_ret:
pm_runtime_disable(&pdev->dev);
clean_ndev_ret:
@@ -2577,6 +2575,7 @@ static int cpsw_remove(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
int ret;
ret = pm_runtime_get_sync(&pdev->dev);
@@ -2590,7 +2589,7 @@ static int cpsw_remove(struct platform_device *pdev)
unregister_netdev(ndev);
cpsw_ale_destroy(priv->ale);
- cpdma_ctlr_destroy(priv->dma);
+ cpdma_ctlr_destroy(cpsw->dma);
of_platform_depopulate(&pdev->dev);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-23 12:51:42 +0100