#define RX_PRIORITY_MAPPING 0x76543210
#define TX_PRIORITY_MAPPING 0x33221100
-#define CPDMA_TX_PRIORITY_MAP 0x76543210
+#define CPDMA_TX_PRIORITY_MAP 0x01234567
#define CPSW_VLAN_AWARE BIT(1)
#define CPSW_ALE_VLAN_AWARE 1
#define CPSW_CMINTMAX_INTVL (1000 / CPSW_CMINTMIN_CNT)
#define CPSW_CMINTMIN_INTVL ((1000 / CPSW_CMINTMAX_CNT) + 1)
-#define cpsw_slave_index(priv) \
- ((priv->data.dual_emac) ? priv->emac_port : \
- priv->data.active_slave)
+#define cpsw_slave_index(cpsw, priv) \
+ ((cpsw->data.dual_emac) ? priv->emac_port : \
+ cpsw->data.active_slave)
+#define IRQ_NUM 2
+#define CPSW_MAX_QUEUES 8
static int debug_level;
module_param(debug_level, int, 0);
__raw_writel(val, slave->regs + offset);
}
-struct cpsw_priv {
- struct platform_device *pdev;
- struct net_device *ndev;
- struct napi_struct napi_rx;
- struct napi_struct napi_tx;
+struct cpsw_common {
struct device *dev;
struct cpsw_platform_data data;
+ struct napi_struct napi_rx;
+ struct napi_struct napi_tx;
struct cpsw_ss_regs __iomem *regs;
struct cpsw_wr_regs __iomem *wr_regs;
u8 __iomem *hw_stats;
struct cpsw_host_regs __iomem *host_port_regs;
- u32 msg_enable;
u32 version;
u32 coal_intvl;
u32 bus_freq_mhz;
int rx_packet_max;
- struct clk *clk;
- u8 mac_addr[ETH_ALEN];
struct cpsw_slave *slaves;
struct cpdma_ctlr *dma;
- struct cpdma_chan *txch, *rxch;
+ struct cpdma_chan *txch[CPSW_MAX_QUEUES];
+ struct cpdma_chan *rxch[CPSW_MAX_QUEUES];
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 irqs_table[IRQ_NUM];
+ struct cpts *cpts;
+ int rx_ch_num, tx_ch_num;
+};
+
+struct cpsw_priv {
+ struct net_device *ndev;
+ struct device *dev;
+ u32 msg_enable;
+ u8 mac_addr[ETH_ALEN];
+ bool rx_pause;
+ bool tx_pause;
u32 emac_port;
+ struct cpsw_common *cpsw;
};
struct cpsw_stats {
{ "Rx Start of Frame Overruns", CPSW_STAT(rxsofoverruns) },
{ "Rx Middle of Frame Overruns", CPSW_STAT(rxmofoverruns) },
{ "Rx DMA Overruns", CPSW_STAT(rxdmaoverruns) },
- { "Rx DMA chan: head_enqueue", CPDMA_RX_STAT(head_enqueue) },
- { "Rx DMA chan: tail_enqueue", CPDMA_RX_STAT(tail_enqueue) },
- { "Rx DMA chan: pad_enqueue", CPDMA_RX_STAT(pad_enqueue) },
- { "Rx DMA chan: misqueued", CPDMA_RX_STAT(misqueued) },
- { "Rx DMA chan: desc_alloc_fail", CPDMA_RX_STAT(desc_alloc_fail) },
- { "Rx DMA chan: pad_alloc_fail", CPDMA_RX_STAT(pad_alloc_fail) },
- { "Rx DMA chan: runt_receive_buf", CPDMA_RX_STAT(runt_receive_buff) },
- { "Rx DMA chan: runt_transmit_buf", CPDMA_RX_STAT(runt_transmit_buff) },
- { "Rx DMA chan: empty_dequeue", CPDMA_RX_STAT(empty_dequeue) },
- { "Rx DMA chan: busy_dequeue", CPDMA_RX_STAT(busy_dequeue) },
- { "Rx DMA chan: good_dequeue", CPDMA_RX_STAT(good_dequeue) },
- { "Rx DMA chan: requeue", CPDMA_RX_STAT(requeue) },
- { "Rx DMA chan: teardown_dequeue", CPDMA_RX_STAT(teardown_dequeue) },
- { "Tx DMA chan: head_enqueue", CPDMA_TX_STAT(head_enqueue) },
- { "Tx DMA chan: tail_enqueue", CPDMA_TX_STAT(tail_enqueue) },
- { "Tx DMA chan: pad_enqueue", CPDMA_TX_STAT(pad_enqueue) },
- { "Tx DMA chan: misqueued", CPDMA_TX_STAT(misqueued) },
- { "Tx DMA chan: desc_alloc_fail", CPDMA_TX_STAT(desc_alloc_fail) },
- { "Tx DMA chan: pad_alloc_fail", CPDMA_TX_STAT(pad_alloc_fail) },
- { "Tx DMA chan: runt_receive_buf", CPDMA_TX_STAT(runt_receive_buff) },
- { "Tx DMA chan: runt_transmit_buf", CPDMA_TX_STAT(runt_transmit_buff) },
- { "Tx DMA chan: empty_dequeue", CPDMA_TX_STAT(empty_dequeue) },
- { "Tx DMA chan: busy_dequeue", CPDMA_TX_STAT(busy_dequeue) },
- { "Tx DMA chan: good_dequeue", CPDMA_TX_STAT(good_dequeue) },
- { "Tx DMA chan: requeue", CPDMA_TX_STAT(requeue) },
- { "Tx DMA chan: teardown_dequeue", CPDMA_TX_STAT(teardown_dequeue) },
};
-#define CPSW_STATS_LEN ARRAY_SIZE(cpsw_gstrings_stats)
+static const struct cpsw_stats cpsw_gstrings_ch_stats[] = {
+ { "head_enqueue", CPDMA_RX_STAT(head_enqueue) },
+ { "tail_enqueue", CPDMA_RX_STAT(tail_enqueue) },
+ { "pad_enqueue", CPDMA_RX_STAT(pad_enqueue) },
+ { "misqueued", CPDMA_RX_STAT(misqueued) },
+ { "desc_alloc_fail", CPDMA_RX_STAT(desc_alloc_fail) },
+ { "pad_alloc_fail", CPDMA_RX_STAT(pad_alloc_fail) },
+ { "runt_receive_buf", CPDMA_RX_STAT(runt_receive_buff) },
+ { "runt_transmit_buf", CPDMA_RX_STAT(runt_transmit_buff) },
+ { "empty_dequeue", CPDMA_RX_STAT(empty_dequeue) },
+ { "busy_dequeue", CPDMA_RX_STAT(busy_dequeue) },
+ { "good_dequeue", CPDMA_RX_STAT(good_dequeue) },
+ { "requeue", CPDMA_RX_STAT(requeue) },
+ { "teardown_dequeue", CPDMA_RX_STAT(teardown_dequeue) },
+};
-#define napi_to_priv(napi) container_of(napi, struct cpsw_priv, napi)
+#define CPSW_STATS_COMMON_LEN ARRAY_SIZE(cpsw_gstrings_stats)
+#define CPSW_STATS_CH_LEN ARRAY_SIZE(cpsw_gstrings_ch_stats)
+
+#define ndev_to_cpsw(ndev) (((struct cpsw_priv *)netdev_priv(ndev))->cpsw)
+#define napi_to_cpsw(napi) container_of(napi, struct cpsw_common, napi)
#define for_each_slave(priv, func, arg...) \
do { \
struct cpsw_slave *slave; \
+ struct cpsw_common *cpsw = (priv)->cpsw; \
int n; \
- if (priv->data.dual_emac) \
- (func)((priv)->slaves + priv->emac_port, ##arg);\
+ if (cpsw->data.dual_emac) \
+ (func)((cpsw)->slaves + priv->emac_port, ##arg);\
else \
- for (n = (priv)->data.slaves, \
- slave = (priv)->slaves; \
+ for (n = cpsw->data.slaves, \
+ slave = cpsw->slaves; \
n; n--) \
(func)(slave++, ##arg); \
} while (0)
-#define cpsw_get_slave_ndev(priv, __slave_no__) \
- ((__slave_no__ < priv->data.slaves) ? \
- priv->slaves[__slave_no__].ndev : NULL)
-#define cpsw_get_slave_priv(priv, __slave_no__) \
- (((__slave_no__ < priv->data.slaves) && \
- (priv->slaves[__slave_no__].ndev)) ? \
- netdev_priv(priv->slaves[__slave_no__].ndev) : NULL) \
-
-#define cpsw_dual_emac_src_port_detect(status, priv, ndev, skb) \
+
+#define cpsw_dual_emac_src_port_detect(cpsw, status, ndev, skb) \
do { \
- if (!priv->data.dual_emac) \
+ if (!cpsw->data.dual_emac) \
break; \
if (CPDMA_RX_SOURCE_PORT(status) == 1) { \
- ndev = cpsw_get_slave_ndev(priv, 0); \
- priv = netdev_priv(ndev); \
+ ndev = cpsw->slaves[0].ndev; \
skb->dev = ndev; \
} else if (CPDMA_RX_SOURCE_PORT(status) == 2) { \
- ndev = cpsw_get_slave_ndev(priv, 1); \
- priv = netdev_priv(ndev); \
+ ndev = cpsw->slaves[1].ndev; \
skb->dev = ndev; \
} \
} while (0)
-#define cpsw_add_mcast(priv, addr) \
+#define cpsw_add_mcast(cpsw, priv, addr) \
do { \
- if (priv->data.dual_emac) { \
- struct cpsw_slave *slave = priv->slaves + \
+ if (cpsw->data.dual_emac) { \
+ struct cpsw_slave *slave = cpsw->slaves + \
priv->emac_port; \
- int slave_port = cpsw_get_slave_port(priv, \
+ int slave_port = cpsw_get_slave_port( \
slave->slave_num); \
- cpsw_ale_add_mcast(priv->ale, addr, \
+ cpsw_ale_add_mcast(cpsw->ale, addr, \
1 << slave_port | ALE_PORT_HOST, \
ALE_VLAN, slave->port_vlan, 0); \
} else { \
- cpsw_ale_add_mcast(priv->ale, addr, \
+ cpsw_ale_add_mcast(cpsw->ale, addr, \
ALE_ALL_PORTS, \
0, 0, 0); \
} \
} while (0)
-static inline int cpsw_get_slave_port(struct cpsw_priv *priv, u32 slave_num)
+static inline int cpsw_get_slave_port(u32 slave_num)
{
return slave_num + 1;
}
static void cpsw_set_promiscious(struct net_device *ndev, bool enable)
{
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_ale *ale = priv->ale;
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+ struct cpsw_ale *ale = cpsw->ale;
int i;
- if (priv->data.dual_emac) {
+ if (cpsw->data.dual_emac) {
bool flag = false;
/* Enabling promiscuous mode for one interface will be
* common for both the interface as the interface shares
* the same hardware resource.
*/
- for (i = 0; i < priv->data.slaves; i++)
- if (priv->slaves[i].ndev->flags & IFF_PROMISC)
+ for (i = 0; i < cpsw->data.slaves; i++)
+ if (cpsw->slaves[i].ndev->flags & IFF_PROMISC)
flag = true;
if (!enable && flag) {
unsigned long timeout = jiffies + HZ;
/* Disable Learn for all ports (host is port 0 and slaves are port 1 and up */
- for (i = 0; i <= priv->data.slaves; i++) {
+ for (i = 0; i <= cpsw->data.slaves; i++) {
cpsw_ale_control_set(ale, i,
ALE_PORT_NOLEARN, 1);
cpsw_ale_control_set(ale, i,
cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 0);
/* Enable Learn for all ports (host is port 0 and slaves are port 1 and up */
- for (i = 0; i <= priv->data.slaves; i++) {
+ for (i = 0; i <= cpsw->data.slaves; i++) {
cpsw_ale_control_set(ale, i,
ALE_PORT_NOLEARN, 0);
cpsw_ale_control_set(ale, i,
static void cpsw_ndo_set_rx_mode(struct net_device *ndev)
{
struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
int vid;
- if (priv->data.dual_emac)
- vid = priv->slaves[priv->emac_port].port_vlan;
+ if (cpsw->data.dual_emac)
+ vid = cpsw->slaves[priv->emac_port].port_vlan;
else
- vid = priv->data.default_vlan;
+ vid = cpsw->data.default_vlan;
if (ndev->flags & IFF_PROMISC) {
/* Enable promiscuous mode */
cpsw_set_promiscious(ndev, true);
- cpsw_ale_set_allmulti(priv->ale, IFF_ALLMULTI);
+ cpsw_ale_set_allmulti(cpsw->ale, IFF_ALLMULTI);
return;
} else {
/* Disable promiscuous mode */
}
/* Restore allmulti on vlans if necessary */
- cpsw_ale_set_allmulti(priv->ale, priv->ndev->flags & IFF_ALLMULTI);
+ cpsw_ale_set_allmulti(cpsw->ale, priv->ndev->flags & IFF_ALLMULTI);
/* Clear all mcast from ALE */
- cpsw_ale_flush_multicast(priv->ale, ALE_ALL_PORTS, vid);
+ cpsw_ale_flush_multicast(cpsw->ale, ALE_ALL_PORTS, vid);
if (!netdev_mc_empty(ndev)) {
struct netdev_hw_addr *ha;
/* program multicast address list into ALE register */
netdev_for_each_mc_addr(ha, ndev) {
- cpsw_add_mcast(priv, (u8 *)ha->addr);
+ cpsw_add_mcast(cpsw, priv, (u8 *)ha->addr);
}
}
}
-static void cpsw_intr_enable(struct cpsw_priv *priv)
+static void cpsw_intr_enable(struct cpsw_common *cpsw)
{
- __raw_writel(0xFF, &priv->wr_regs->tx_en);
- __raw_writel(0xFF, &priv->wr_regs->rx_en);
+ __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)
{
- __raw_writel(0, &priv->wr_regs->tx_en);
- __raw_writel(0, &priv->wr_regs->rx_en);
+ __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;
}
static void cpsw_tx_handler(void *token, int len, int status)
{
+ struct netdev_queue *txq;
struct sk_buff *skb = token;
struct net_device *ndev = skb->dev;
- struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
/* Check whether the queue is stopped due to stalled tx dma, if the
* queue is stopped then start the queue as we have free desc for tx
*/
- if (unlikely(netif_queue_stopped(ndev)))
- netif_wake_queue(ndev);
- cpts_tx_timestamp(priv->cpts, skb);
+ txq = netdev_get_tx_queue(ndev, skb_get_queue_mapping(skb));
+ if (unlikely(netif_tx_queue_stopped(txq)))
+ netif_tx_wake_queue(txq);
+
+ cpts_tx_timestamp(cpsw->cpts, skb);
ndev->stats.tx_packets++;
ndev->stats.tx_bytes += len;
dev_kfree_skb_any(skb);
static void cpsw_rx_handler(void *token, int len, int status)
{
+ struct cpdma_chan *ch;
struct sk_buff *skb = token;
struct sk_buff *new_skb;
struct net_device *ndev = skb->dev;
- struct cpsw_priv *priv = netdev_priv(ndev);
int ret = 0;
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
- cpsw_dual_emac_src_port_detect(status, priv, ndev, skb);
+ cpsw_dual_emac_src_port_detect(cpsw, status, ndev, skb);
if (unlikely(status < 0) || unlikely(!netif_running(ndev))) {
bool ndev_status = false;
- struct cpsw_slave *slave = priv->slaves;
+ struct cpsw_slave *slave = cpsw->slaves;
int n;
- if (priv->data.dual_emac) {
+ if (cpsw->data.dual_emac) {
/* In dual emac mode check for all interfaces */
- for (n = priv->data.slaves; n; n--, slave++)
+ for (n = cpsw->data.slaves; n; n--, slave++)
if (netif_running(slave->ndev))
ndev_status = true;
}
return;
}
- new_skb = netdev_alloc_skb_ip_align(ndev, priv->rx_packet_max);
+ new_skb = netdev_alloc_skb_ip_align(ndev, cpsw->rx_packet_max);
if (new_skb) {
+ skb_copy_queue_mapping(new_skb, skb);
skb_put(skb, len);
- cpts_rx_timestamp(priv->cpts, skb);
+ cpts_rx_timestamp(cpsw->cpts, skb);
skb->protocol = eth_type_trans(skb, ndev);
netif_receive_skb(skb);
ndev->stats.rx_bytes += len;
}
requeue:
- ret = cpdma_chan_submit(priv->rxch, new_skb, new_skb->data,
- skb_tailroom(new_skb), 0);
+ if (netif_dormant(ndev)) {
+ dev_kfree_skb_any(new_skb);
+ return;
+ }
+
+ ch = cpsw->rxch[skb_get_queue_mapping(new_skb)];
+ ret = cpdma_chan_submit(ch, new_skb, new_skb->data,
+ skb_tailroom(new_skb), 0);
if (WARN_ON(ret < 0))
dev_kfree_skb_any(new_skb);
}
static irqreturn_t cpsw_tx_interrupt(int irq, void *dev_id)
{
- struct cpsw_priv *priv = dev_id;
+ struct cpsw_common *cpsw = dev_id;
- writel(0, &priv->wr_regs->tx_en);
- cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
+ 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);
+ napi_schedule(&cpsw->napi_tx);
return IRQ_HANDLED;
}
static irqreturn_t cpsw_rx_interrupt(int irq, void *dev_id)
{
- struct cpsw_priv *priv = dev_id;
+ struct cpsw_common *cpsw = dev_id;
- cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
- writel(0, &priv->wr_regs->rx_en);
+ 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);
+ napi_schedule(&cpsw->napi_rx);
return IRQ_HANDLED;
}
static int cpsw_tx_poll(struct napi_struct *napi_tx, int budget)
{
- struct cpsw_priv *priv = napi_to_priv(napi_tx);
- int num_tx;
+ u32 ch_map;
+ int num_tx, ch;
+ struct cpsw_common *cpsw = napi_to_cpsw(napi_tx);
+
+ /* process every unprocessed channel */
+ ch_map = cpdma_ctrl_txchs_state(cpsw->dma);
+ for (ch = 0, num_tx = 0; num_tx < budget; ch_map >>= 1, ch++) {
+ if (!ch_map) {
+ ch_map = cpdma_ctrl_txchs_state(cpsw->dma);
+ if (!ch_map)
+ break;
+
+ ch = 0;
+ }
+
+ if (!(ch_map & 0x01))
+ continue;
+
+ num_tx += cpdma_chan_process(cpsw->txch[ch], budget - num_tx);
+ }
- num_tx = cpdma_chan_process(priv->txch, budget);
if (num_tx < budget) {
napi_complete(napi_tx);
- writel(0xff, &priv->wr_regs->tx_en);
- if (priv->quirk_irq && priv->tx_irq_disabled) {
- priv->tx_irq_disabled = false;
- enable_irq(priv->irqs_table[1]);
+ writel(0xff, &cpsw->wr_regs->tx_en);
+ if (cpsw->quirk_irq && cpsw->tx_irq_disabled) {
+ cpsw->tx_irq_disabled = false;
+ enable_irq(cpsw->irqs_table[1]);
}
}
- if (num_tx)
- cpsw_dbg(priv, intr, "poll %d tx pkts\n", num_tx);
-
return num_tx;
}
static int cpsw_rx_poll(struct napi_struct *napi_rx, int budget)
{
- struct cpsw_priv *priv = napi_to_priv(napi_rx);
- int num_rx;
+ u32 ch_map;
+ int num_rx, ch;
+ struct cpsw_common *cpsw = napi_to_cpsw(napi_rx);
+
+ /* process every unprocessed channel */
+ ch_map = cpdma_ctrl_rxchs_state(cpsw->dma);
+ for (ch = 0, num_rx = 0; num_rx < budget; ch_map >>= 1, ch++) {
+ if (!ch_map) {
+ ch_map = cpdma_ctrl_rxchs_state(cpsw->dma);
+ if (!ch_map)
+ break;
+
+ ch = 0;
+ }
+
+ if (!(ch_map & 0x01))
+ continue;
+
+ num_rx += cpdma_chan_process(cpsw->rxch[ch], budget - num_rx);
+ }
- num_rx = cpdma_chan_process(priv->rxch, budget);
if (num_rx < budget) {
napi_complete(napi_rx);
- writel(0xff, &priv->wr_regs->rx_en);
- if (priv->quirk_irq && priv->rx_irq_disabled) {
- priv->rx_irq_disabled = false;
- enable_irq(priv->irqs_table[0]);
+ writel(0xff, &cpsw->wr_regs->rx_en);
+ if (cpsw->quirk_irq && cpsw->rx_irq_disabled) {
+ cpsw->rx_irq_disabled = false;
+ enable_irq(cpsw->irqs_table[0]);
}
}
- if (num_rx)
- cpsw_dbg(priv, intr, "poll %d rx pkts\n", num_rx);
-
return num_rx;
}
struct phy_device *phy = slave->phy;
u32 mac_control = 0;
u32 slave_port;
+ struct cpsw_common *cpsw = priv->cpsw;
if (!phy)
return;
- slave_port = cpsw_get_slave_port(priv, slave->slave_num);
+ slave_port = cpsw_get_slave_port(slave->slave_num);
if (phy->link) {
- mac_control = priv->data.mac_control;
+ mac_control = cpsw->data.mac_control;
/* enable forwarding */
- cpsw_ale_control_set(priv->ale, slave_port,
+ cpsw_ale_control_set(cpsw->ale, slave_port,
ALE_PORT_STATE, ALE_PORT_STATE_FORWARD);
if (phy->speed == 1000)
} else {
mac_control = 0;
/* disable forwarding */
- cpsw_ale_control_set(priv->ale, slave_port,
+ cpsw_ale_control_set(cpsw->ale, slave_port,
ALE_PORT_STATE, ALE_PORT_STATE_DISABLE);
}
if (link) {
netif_carrier_on(ndev);
if (netif_running(ndev))
- netif_wake_queue(ndev);
+ netif_tx_wake_all_queues(ndev);
} else {
netif_carrier_off(ndev);
- netif_stop_queue(ndev);
+ netif_tx_stop_all_queues(ndev);
}
}
static int cpsw_get_coalesce(struct net_device *ndev,
struct ethtool_coalesce *coal)
{
- struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
- coal->rx_coalesce_usecs = priv->coal_intvl;
+ coal->rx_coalesce_usecs = cpsw->coal_intvl;
return 0;
}
u32 prescale = 0;
u32 addnl_dvdr = 1;
u32 coal_intvl = 0;
+ struct cpsw_common *cpsw = priv->cpsw;
coal_intvl = coal->rx_coalesce_usecs;
- int_ctrl = readl(&priv->wr_regs->int_control);
- prescale = priv->bus_freq_mhz * 4;
+ int_ctrl = readl(&cpsw->wr_regs->int_control);
+ prescale = cpsw->bus_freq_mhz * 4;
if (!coal->rx_coalesce_usecs) {
int_ctrl &= ~(CPSW_INTPRESCALE_MASK | CPSW_INTPACEEN);
}
num_interrupts = (1000 * addnl_dvdr) / coal_intvl;
- writel(num_interrupts, &priv->wr_regs->rx_imax);
- writel(num_interrupts, &priv->wr_regs->tx_imax);
+ writel(num_interrupts, &cpsw->wr_regs->rx_imax);
+ writel(num_interrupts, &cpsw->wr_regs->tx_imax);
int_ctrl |= CPSW_INTPACEEN;
int_ctrl &= (~CPSW_INTPRESCALE_MASK);
int_ctrl |= (prescale & CPSW_INTPRESCALE_MASK);
update_return:
- writel(int_ctrl, &priv->wr_regs->int_control);
+ writel(int_ctrl, &cpsw->wr_regs->int_control);
cpsw_notice(priv, timer, "Set coalesce to %d usecs.\n", coal_intvl);
- if (priv->data.dual_emac) {
- int i;
-
- for (i = 0; i < priv->data.slaves; i++) {
- priv = netdev_priv(priv->slaves[i].ndev);
- priv->coal_intvl = coal_intvl;
- }
- } else {
- priv->coal_intvl = coal_intvl;
- }
+ cpsw->coal_intvl = coal_intvl;
return 0;
}
static int cpsw_get_sset_count(struct net_device *ndev, int sset)
{
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+
switch (sset) {
case ETH_SS_STATS:
- return CPSW_STATS_LEN;
+ return (CPSW_STATS_COMMON_LEN +
+ (cpsw->rx_ch_num + cpsw->tx_ch_num) *
+ CPSW_STATS_CH_LEN);
default:
return -EOPNOTSUPP;
}
}
+static void cpsw_add_ch_strings(u8 **p, int ch_num, int rx_dir)
+{
+ int ch_stats_len;
+ int line;
+ int i;
+
+ ch_stats_len = CPSW_STATS_CH_LEN * ch_num;
+ for (i = 0; i < ch_stats_len; i++) {
+ line = i % CPSW_STATS_CH_LEN;
+ snprintf(*p, ETH_GSTRING_LEN,
+ "%s DMA chan %d: %s", rx_dir ? "Rx" : "Tx",
+ i / CPSW_STATS_CH_LEN,
+ cpsw_gstrings_ch_stats[line].stat_string);
+ *p += ETH_GSTRING_LEN;
+ }
+}
+
static void cpsw_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
{
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
u8 *p = data;
int i;
switch (stringset) {
case ETH_SS_STATS:
- for (i = 0; i < CPSW_STATS_LEN; i++) {
+ for (i = 0; i < CPSW_STATS_COMMON_LEN; i++) {
memcpy(p, cpsw_gstrings_stats[i].stat_string,
ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
+
+ cpsw_add_ch_strings(&p, cpsw->rx_ch_num, 1);
+ cpsw_add_ch_strings(&p, cpsw->tx_ch_num, 0);
break;
}
}
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 = ndev_to_cpsw(ndev);
+ struct cpdma_chan_stats ch_stats;
+ int i, l, ch;
/* 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);
-
- for (i = 0; i < CPSW_STATS_LEN; i++) {
- switch (cpsw_gstrings_stats[i].type) {
- case CPSW_STATS:
- val = readl(priv->hw_stats +
- cpsw_gstrings_stats[i].stat_offset);
- data[i] = val;
- break;
-
- case CPDMA_RX_STATS:
- p = (u8 *)&rx_stats +
- cpsw_gstrings_stats[i].stat_offset;
- data[i] = *(u32 *)p;
- break;
+ for (l = 0; l < CPSW_STATS_COMMON_LEN; l++)
+ data[l] = readl(cpsw->hw_stats +
+ cpsw_gstrings_stats[l].stat_offset);
+
+ for (ch = 0; ch < cpsw->rx_ch_num; ch++) {
+ cpdma_chan_get_stats(cpsw->rxch[ch], &ch_stats);
+ for (i = 0; i < CPSW_STATS_CH_LEN; i++, l++) {
+ p = (u8 *)&ch_stats +
+ cpsw_gstrings_ch_stats[i].stat_offset;
+ data[l] = *(u32 *)p;
+ }
+ }
- case CPDMA_TX_STATS:
- p = (u8 *)&tx_stats +
- cpsw_gstrings_stats[i].stat_offset;
- data[i] = *(u32 *)p;
- break;
+ for (ch = 0; ch < cpsw->tx_ch_num; ch++) {
+ cpdma_chan_get_stats(cpsw->txch[ch], &ch_stats);
+ for (i = 0; i < CPSW_STATS_CH_LEN; i++, l++) {
+ p = (u8 *)&ch_stats +
+ cpsw_gstrings_ch_stats[i].stat_offset;
+ data[l] = *(u32 *)p;
}
}
}
-static int cpsw_common_res_usage_state(struct cpsw_priv *priv)
+static int cpsw_common_res_usage_state(struct cpsw_common *cpsw)
{
u32 i;
u32 usage_count = 0;
- if (!priv->data.dual_emac)
+ if (!cpsw->data.dual_emac)
return 0;
- for (i = 0; i < priv->data.slaves; i++)
- if (priv->slaves[i].open_stat)
+ for (i = 0; i < cpsw->data.slaves; i++)
+ if (cpsw->slaves[i].open_stat)
usage_count++;
return usage_count;
}
-static inline int cpsw_tx_packet_submit(struct net_device *ndev,
- struct cpsw_priv *priv, struct sk_buff *skb)
+static inline int cpsw_tx_packet_submit(struct cpsw_priv *priv,
+ struct sk_buff *skb,
+ struct cpdma_chan *txch)
{
- if (!priv->data.dual_emac)
- return cpdma_chan_submit(priv->txch, skb, skb->data,
- skb->len, 0);
+ struct cpsw_common *cpsw = priv->cpsw;
- if (ndev == cpsw_get_slave_ndev(priv, 0))
- return cpdma_chan_submit(priv->txch, skb, skb->data,
- skb->len, 1);
- else
- return cpdma_chan_submit(priv->txch, skb, skb->data,
- skb->len, 2);
+ return cpdma_chan_submit(txch, skb, skb->data, skb->len,
+ priv->emac_port + cpsw->data.dual_emac);
}
static inline void cpsw_add_dual_emac_def_ale_entries(
struct cpsw_priv *priv, struct cpsw_slave *slave,
u32 slave_port)
{
+ struct cpsw_common *cpsw = priv->cpsw;
u32 port_mask = 1 << slave_port | ALE_PORT_HOST;
- if (priv->version == CPSW_VERSION_1)
+ if (cpsw->version == CPSW_VERSION_1)
slave_write(slave, slave->port_vlan, CPSW1_PORT_VLAN);
else
slave_write(slave, slave->port_vlan, CPSW2_PORT_VLAN);
- cpsw_ale_add_vlan(priv->ale, slave->port_vlan, port_mask,
+ cpsw_ale_add_vlan(cpsw->ale, slave->port_vlan, port_mask,
port_mask, port_mask, 0);
- cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
+ cpsw_ale_add_mcast(cpsw->ale, priv->ndev->broadcast,
port_mask, ALE_VLAN, slave->port_vlan, 0);
- cpsw_ale_add_ucast(priv->ale, priv->mac_addr,
- HOST_PORT_NUM, ALE_VLAN | ALE_SECURE, slave->port_vlan);
+ cpsw_ale_add_ucast(cpsw->ale, priv->mac_addr,
+ HOST_PORT_NUM, ALE_VLAN |
+ ALE_SECURE, slave->port_vlan);
}
static void soft_reset_slave(struct cpsw_slave *slave)
static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv)
{
u32 slave_port;
+ struct cpsw_common *cpsw = priv->cpsw;
soft_reset_slave(slave);
/* setup priority mapping */
__raw_writel(RX_PRIORITY_MAPPING, &slave->sliver->rx_pri_map);
- switch (priv->version) {
+ switch (cpsw->version) {
case CPSW_VERSION_1:
slave_write(slave, TX_PRIORITY_MAPPING, CPSW1_TX_PRI_MAP);
break;
}
/* setup max packet size, and mac address */
- __raw_writel(priv->rx_packet_max, &slave->sliver->rx_maxlen);
+ __raw_writel(cpsw->rx_packet_max, &slave->sliver->rx_maxlen);
cpsw_set_slave_mac(slave, priv);
slave->mac_control = 0; /* no link yet */
- slave_port = cpsw_get_slave_port(priv, slave->slave_num);
+ slave_port = cpsw_get_slave_port(slave->slave_num);
- if (priv->data.dual_emac)
+ if (cpsw->data.dual_emac)
cpsw_add_dual_emac_def_ale_entries(priv, slave, slave_port);
else
- cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
+ cpsw_ale_add_mcast(cpsw->ale, priv->ndev->broadcast,
1 << slave_port, 0, 0, ALE_MCAST_FWD_2);
if (slave->data->phy_node) {
phy_start(slave->phy);
/* Configure GMII_SEL register */
- cpsw_phy_sel(&priv->pdev->dev, slave->phy->interface, slave->slave_num);
+ cpsw_phy_sel(cpsw->dev, slave->phy->interface, slave->slave_num);
}
static inline void cpsw_add_default_vlan(struct cpsw_priv *priv)
{
- const int vlan = priv->data.default_vlan;
+ struct cpsw_common *cpsw = priv->cpsw;
+ const int vlan = cpsw->data.default_vlan;
u32 reg;
int i;
int unreg_mcast_mask;
- reg = (priv->version == CPSW_VERSION_1) ? CPSW1_PORT_VLAN :
+ reg = (cpsw->version == CPSW_VERSION_1) ? CPSW1_PORT_VLAN :
CPSW2_PORT_VLAN;
- writel(vlan, &priv->host_port_regs->port_vlan);
+ writel(vlan, &cpsw->host_port_regs->port_vlan);
- for (i = 0; i < priv->data.slaves; i++)
- slave_write(priv->slaves + i, vlan, reg);
+ for (i = 0; i < cpsw->data.slaves; i++)
+ slave_write(cpsw->slaves + i, vlan, reg);
if (priv->ndev->flags & IFF_ALLMULTI)
unreg_mcast_mask = ALE_ALL_PORTS;
else
unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2;
- cpsw_ale_add_vlan(priv->ale, vlan, ALE_ALL_PORTS,
+ cpsw_ale_add_vlan(cpsw->ale, vlan, ALE_ALL_PORTS,
ALE_ALL_PORTS, ALE_ALL_PORTS,
unreg_mcast_mask);
}
static void cpsw_init_host_port(struct cpsw_priv *priv)
{
- u32 control_reg;
u32 fifo_mode;
+ u32 control_reg;
+ struct cpsw_common *cpsw = priv->cpsw;
/* soft reset the controller and initialize ale */
- soft_reset("cpsw", &priv->regs->soft_reset);
- cpsw_ale_start(priv->ale);
+ soft_reset("cpsw", &cpsw->regs->soft_reset);
+ cpsw_ale_start(cpsw->ale);
/* switch to vlan unaware mode */
- cpsw_ale_control_set(priv->ale, HOST_PORT_NUM, ALE_VLAN_AWARE,
+ cpsw_ale_control_set(cpsw->ale, HOST_PORT_NUM, ALE_VLAN_AWARE,
CPSW_ALE_VLAN_AWARE);
- control_reg = readl(&priv->regs->control);
+ control_reg = readl(&cpsw->regs->control);
control_reg |= CPSW_VLAN_AWARE;
- writel(control_reg, &priv->regs->control);
- fifo_mode = (priv->data.dual_emac) ? CPSW_FIFO_DUAL_MAC_MODE :
+ writel(control_reg, &cpsw->regs->control);
+ fifo_mode = (cpsw->data.dual_emac) ? CPSW_FIFO_DUAL_MAC_MODE :
CPSW_FIFO_NORMAL_MODE;
- writel(fifo_mode, &priv->host_port_regs->tx_in_ctl);
+ writel(fifo_mode, &cpsw->host_port_regs->tx_in_ctl);
/* setup host port priority mapping */
__raw_writel(CPDMA_TX_PRIORITY_MAP,
- &priv->host_port_regs->cpdma_tx_pri_map);
- __raw_writel(0, &priv->host_port_regs->cpdma_rx_chan_map);
+ &cpsw->host_port_regs->cpdma_tx_pri_map);
+ __raw_writel(0, &cpsw->host_port_regs->cpdma_rx_chan_map);
- cpsw_ale_control_set(priv->ale, HOST_PORT_NUM,
+ cpsw_ale_control_set(cpsw->ale, HOST_PORT_NUM,
ALE_PORT_STATE, ALE_PORT_STATE_FORWARD);
- if (!priv->data.dual_emac) {
- cpsw_ale_add_ucast(priv->ale, priv->mac_addr, HOST_PORT_NUM,
+ if (!cpsw->data.dual_emac) {
+ cpsw_ale_add_ucast(cpsw->ale, priv->mac_addr, HOST_PORT_NUM,
0, 0);
- cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
+ cpsw_ale_add_mcast(cpsw->ale, priv->ndev->broadcast,
ALE_PORT_HOST, 0, 0, ALE_MCAST_FWD_2);
}
}
-static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_priv *priv)
+static int cpsw_fill_rx_channels(struct cpsw_priv *priv)
+{
+ struct cpsw_common *cpsw = priv->cpsw;
+ struct sk_buff *skb;
+ int ch_buf_num;
+ int ch, i, ret;
+
+ for (ch = 0; ch < cpsw->rx_ch_num; ch++) {
+ ch_buf_num = cpdma_chan_get_rx_buf_num(cpsw->rxch[ch]);
+ for (i = 0; i < ch_buf_num; i++) {
+ skb = __netdev_alloc_skb_ip_align(priv->ndev,
+ cpsw->rx_packet_max,
+ GFP_KERNEL);
+ if (!skb) {
+ cpsw_err(priv, ifup, "cannot allocate skb\n");
+ return -ENOMEM;
+ }
+
+ skb_set_queue_mapping(skb, ch);
+ ret = cpdma_chan_submit(cpsw->rxch[ch], skb, skb->data,
+ skb_tailroom(skb), 0);
+ if (ret < 0) {
+ cpsw_err(priv, ifup,
+ "cannot submit skb to channel %d rx, error %d\n",
+ ch, ret);
+ kfree_skb(skb);
+ return ret;
+ }
+ kmemleak_not_leak(skb);
+ }
+
+ cpsw_info(priv, ifup, "ch %d rx, submitted %d descriptors\n",
+ ch, ch_buf_num);
+ }
+
+ return 0;
+}
+
+static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_common *cpsw)
{
u32 slave_port;
- slave_port = cpsw_get_slave_port(priv, slave->slave_num);
+ slave_port = cpsw_get_slave_port(slave->slave_num);
if (!slave->phy)
return;
phy_stop(slave->phy);
phy_disconnect(slave->phy);
slave->phy = NULL;
- cpsw_ale_control_set(priv->ale, slave_port,
+ cpsw_ale_control_set(cpsw->ale, slave_port,
ALE_PORT_STATE, ALE_PORT_STATE_DISABLE);
soft_reset_slave(slave);
}
static int cpsw_ndo_open(struct net_device *ndev)
{
struct cpsw_priv *priv = netdev_priv(ndev);
- int i, ret;
+ struct cpsw_common *cpsw = priv->cpsw;
+ int ret;
u32 reg;
- ret = pm_runtime_get_sync(&priv->pdev->dev);
+ ret = pm_runtime_get_sync(cpsw->dev);
if (ret < 0) {
- pm_runtime_put_noidle(&priv->pdev->dev);
+ pm_runtime_put_noidle(cpsw->dev);
return ret;
}
- if (!cpsw_common_res_usage_state(priv))
- cpsw_intr_disable(priv);
+ if (!cpsw_common_res_usage_state(cpsw))
+ cpsw_intr_disable(cpsw);
netif_carrier_off(ndev);
- reg = priv->version;
+ /* Notify the stack of the actual queue counts. */
+ ret = netif_set_real_num_tx_queues(ndev, cpsw->tx_ch_num);
+ if (ret) {
+ dev_err(priv->dev, "cannot set real number of tx queues\n");
+ goto err_cleanup;
+ }
+
+ ret = netif_set_real_num_rx_queues(ndev, cpsw->rx_ch_num);
+ if (ret) {
+ dev_err(priv->dev, "cannot set real number of rx queues\n");
+ goto err_cleanup;
+ }
+
+ reg = cpsw->version;
dev_info(priv->dev, "initializing cpsw version %d.%d (%d)\n",
CPSW_MAJOR_VERSION(reg), CPSW_MINOR_VERSION(reg),
CPSW_RTL_VERSION(reg));
/* initialize host and slave ports */
- if (!cpsw_common_res_usage_state(priv))
+ if (!cpsw_common_res_usage_state(cpsw))
cpsw_init_host_port(priv);
for_each_slave(priv, cpsw_slave_open, priv);
/* Add default VLAN */
- if (!priv->data.dual_emac)
+ if (!cpsw->data.dual_emac)
cpsw_add_default_vlan(priv);
else
- cpsw_ale_add_vlan(priv->ale, priv->data.default_vlan,
+ cpsw_ale_add_vlan(cpsw->ale, cpsw->data.default_vlan,
ALE_ALL_PORTS, ALE_ALL_PORTS, 0, 0);
- if (!cpsw_common_res_usage_state(priv)) {
- struct cpsw_priv *priv_sl0 = cpsw_get_slave_priv(priv, 0);
- int buf_num;
-
+ if (!cpsw_common_res_usage_state(cpsw)) {
/* 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, &priv->regs->ptype);
+ __raw_writel(0, &cpsw->regs->ptype);
/* enable statistics collection only on all ports */
- __raw_writel(0x7, &priv->regs->stat_port_en);
+ __raw_writel(0x7, &cpsw->regs->stat_port_en);
/* Enable internal fifo flow control */
- writel(0x7, &priv->regs->flow_control);
+ writel(0x7, &cpsw->regs->flow_control);
- napi_enable(&priv_sl0->napi_rx);
- napi_enable(&priv_sl0->napi_tx);
+ napi_enable(&cpsw->napi_rx);
+ napi_enable(&cpsw->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(priv->dma);
- for (i = 0; i < buf_num; i++) {
- struct sk_buff *skb;
+ ret = cpsw_fill_rx_channels(priv);
+ if (ret < 0)
+ goto err_cleanup;
- ret = -ENOMEM;
- skb = __netdev_alloc_skb_ip_align(priv->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);
- if (ret < 0) {
- kfree_skb(skb);
- goto err_cleanup;
- }
- kmemleak_not_leak(skb);
- }
- /* continue even if we didn't manage to submit all
- * receive descs
- */
- cpsw_info(priv, ifup, "submitted %d rx descriptors\n", i);
-
- if (cpts_register(&priv->pdev->dev, priv->cpts,
- priv->data.cpts_clock_mult,
- priv->data.cpts_clock_shift))
+ if (cpts_register(cpsw->dev, cpsw->cpts,
+ cpsw->data.cpts_clock_mult,
+ cpsw->data.cpts_clock_shift))
dev_err(priv->dev, "error registering cpts device\n");
}
/* Enable Interrupt pacing if configured */
- if (priv->coal_intvl != 0) {
+ if (cpsw->coal_intvl != 0) {
struct ethtool_coalesce coal;
- coal.rx_coalesce_usecs = priv->coal_intvl;
+ coal.rx_coalesce_usecs = cpsw->coal_intvl;
cpsw_set_coalesce(ndev, &coal);
}
- cpdma_ctlr_start(priv->dma);
- cpsw_intr_enable(priv);
+ cpdma_ctlr_start(cpsw->dma);
+ cpsw_intr_enable(cpsw);
+
+ if (cpsw->data.dual_emac)
+ cpsw->slaves[priv->emac_port].open_stat = true;
+
+ netif_tx_start_all_queues(ndev);
- if (priv->data.dual_emac)
- priv->slaves[priv->emac_port].open_stat = true;
return 0;
err_cleanup:
- cpdma_ctlr_stop(priv->dma);
- for_each_slave(priv, cpsw_slave_stop, priv);
- pm_runtime_put_sync(&priv->pdev->dev);
+ cpdma_ctlr_stop(cpsw->dma);
+ for_each_slave(priv, cpsw_slave_stop, cpsw);
+ pm_runtime_put_sync(cpsw->dev);
netif_carrier_off(priv->ndev);
return ret;
}
static int cpsw_ndo_stop(struct net_device *ndev)
{
struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
cpsw_info(priv, ifdown, "shutting down cpsw device\n");
- netif_stop_queue(priv->ndev);
+ netif_tx_stop_all_queues(priv->ndev);
netif_carrier_off(priv->ndev);
- if (cpsw_common_res_usage_state(priv) <= 1) {
- struct cpsw_priv *priv_sl0 = cpsw_get_slave_priv(priv, 0);
-
- 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_ale_stop(priv->ale);
- }
- for_each_slave(priv, cpsw_slave_stop, priv);
- pm_runtime_put_sync(&priv->pdev->dev);
- if (priv->data.dual_emac)
- priv->slaves[priv->emac_port].open_stat = false;
+ if (cpsw_common_res_usage_state(cpsw) <= 1) {
+ napi_disable(&cpsw->napi_rx);
+ napi_disable(&cpsw->napi_tx);
+ cpts_unregister(cpsw->cpts);
+ cpsw_intr_disable(cpsw);
+ cpdma_ctlr_stop(cpsw->dma);
+ cpsw_ale_stop(cpsw->ale);
+ }
+ for_each_slave(priv, cpsw_slave_stop, cpsw);
+ pm_runtime_put_sync(cpsw->dev);
+ if (cpsw->data.dual_emac)
+ cpsw->slaves[priv->emac_port].open_stat = false;
return 0;
}
struct net_device *ndev)
{
struct cpsw_priv *priv = netdev_priv(ndev);
- int ret;
+ struct cpsw_common *cpsw = priv->cpsw;
+ struct netdev_queue *txq;
+ struct cpdma_chan *txch;
+ int ret, q_idx;
netif_trans_update(ndev);
}
if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP &&
- priv->cpts->tx_enable)
+ cpsw->cpts->tx_enable)
skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
skb_tx_timestamp(skb);
- ret = cpsw_tx_packet_submit(ndev, priv, skb);
+ q_idx = skb_get_queue_mapping(skb);
+ if (q_idx >= cpsw->tx_ch_num)
+ q_idx = q_idx % cpsw->tx_ch_num;
+
+ txch = cpsw->txch[q_idx];
+ ret = cpsw_tx_packet_submit(priv, skb, txch);
if (unlikely(ret != 0)) {
cpsw_err(priv, tx_err, "desc submit failed\n");
goto fail;
/* 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)))
- netif_stop_queue(ndev);
+ if (unlikely(!cpdma_check_free_tx_desc(txch))) {
+ txq = netdev_get_tx_queue(ndev, q_idx);
+ netif_tx_stop_queue(txq);
+ }
return NETDEV_TX_OK;
fail:
ndev->stats.tx_dropped++;
- netif_stop_queue(ndev);
+ txq = netdev_get_tx_queue(ndev, skb_get_queue_mapping(skb));
+ netif_tx_stop_queue(txq);
return NETDEV_TX_BUSY;
}
#ifdef CONFIG_TI_CPTS
-static void cpsw_hwtstamp_v1(struct cpsw_priv *priv)
+static void cpsw_hwtstamp_v1(struct cpsw_common *cpsw)
{
- struct cpsw_slave *slave = &priv->slaves[priv->data.active_slave];
+ struct cpsw_slave *slave = &cpsw->slaves[cpsw->data.active_slave];
u32 ts_en, seq_id;
- if (!priv->cpts->tx_enable && !priv->cpts->rx_enable) {
+ if (!cpsw->cpts->tx_enable && !cpsw->cpts->rx_enable) {
slave_write(slave, 0, CPSW1_TS_CTL);
return;
}
seq_id = (30 << CPSW_V1_SEQ_ID_OFS_SHIFT) | ETH_P_1588;
ts_en = EVENT_MSG_BITS << CPSW_V1_MSG_TYPE_OFS;
- if (priv->cpts->tx_enable)
+ if (cpsw->cpts->tx_enable)
ts_en |= CPSW_V1_TS_TX_EN;
- if (priv->cpts->rx_enable)
+ if (cpsw->cpts->rx_enable)
ts_en |= CPSW_V1_TS_RX_EN;
slave_write(slave, ts_en, CPSW1_TS_CTL);
static void cpsw_hwtstamp_v2(struct cpsw_priv *priv)
{
struct cpsw_slave *slave;
+ struct cpsw_common *cpsw = priv->cpsw;
u32 ctrl, mtype;
- if (priv->data.dual_emac)
- slave = &priv->slaves[priv->emac_port];
+ if (cpsw->data.dual_emac)
+ slave = &cpsw->slaves[priv->emac_port];
else
- slave = &priv->slaves[priv->data.active_slave];
+ slave = &cpsw->slaves[cpsw->data.active_slave];
ctrl = slave_read(slave, CPSW2_CONTROL);
- switch (priv->version) {
+ switch (cpsw->version) {
case CPSW_VERSION_2:
ctrl &= ~CTRL_V2_ALL_TS_MASK;
- if (priv->cpts->tx_enable)
+ if (cpsw->cpts->tx_enable)
ctrl |= CTRL_V2_TX_TS_BITS;
- if (priv->cpts->rx_enable)
+ if (cpsw->cpts->rx_enable)
ctrl |= CTRL_V2_RX_TS_BITS;
break;
case CPSW_VERSION_3:
default:
ctrl &= ~CTRL_V3_ALL_TS_MASK;
- if (priv->cpts->tx_enable)
+ if (cpsw->cpts->tx_enable)
ctrl |= CTRL_V3_TX_TS_BITS;
- if (priv->cpts->rx_enable)
+ if (cpsw->cpts->rx_enable)
ctrl |= CTRL_V3_RX_TS_BITS;
break;
}
slave_write(slave, mtype, CPSW2_TS_SEQ_MTYPE);
slave_write(slave, ctrl, CPSW2_CONTROL);
- __raw_writel(ETH_P_1588, &priv->regs->ts_ltype);
+ __raw_writel(ETH_P_1588, &cpsw->regs->ts_ltype);
}
static int cpsw_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
{
struct cpsw_priv *priv = netdev_priv(dev);
- struct cpts *cpts = priv->cpts;
struct hwtstamp_config cfg;
+ struct cpsw_common *cpsw = priv->cpsw;
+ struct cpts *cpts = cpsw->cpts;
- if (priv->version != CPSW_VERSION_1 &&
- priv->version != CPSW_VERSION_2 &&
- priv->version != CPSW_VERSION_3)
+ if (cpsw->version != CPSW_VERSION_1 &&
+ cpsw->version != CPSW_VERSION_2 &&
+ cpsw->version != CPSW_VERSION_3)
return -EOPNOTSUPP;
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
cpts->tx_enable = cfg.tx_type == HWTSTAMP_TX_ON;
- switch (priv->version) {
+ switch (cpsw->version) {
case CPSW_VERSION_1:
- cpsw_hwtstamp_v1(priv);
+ cpsw_hwtstamp_v1(cpsw);
break;
case CPSW_VERSION_2:
case CPSW_VERSION_3:
static int cpsw_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
{
- struct cpsw_priv *priv = netdev_priv(dev);
- struct cpts *cpts = priv->cpts;
+ struct cpsw_common *cpsw = ndev_to_cpsw(dev);
+ struct cpts *cpts = cpsw->cpts;
struct hwtstamp_config cfg;
- if (priv->version != CPSW_VERSION_1 &&
- priv->version != CPSW_VERSION_2 &&
- priv->version != CPSW_VERSION_3)
+ if (cpsw->version != CPSW_VERSION_1 &&
+ cpsw->version != CPSW_VERSION_2 &&
+ cpsw->version != CPSW_VERSION_3)
return -EOPNOTSUPP;
cfg.flags = 0;
static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
{
struct cpsw_priv *priv = netdev_priv(dev);
- int slave_no = cpsw_slave_index(priv);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int slave_no = cpsw_slave_index(cpsw, priv);
if (!netif_running(dev))
return -EINVAL;
#endif
}
- if (!priv->slaves[slave_no].phy)
+ if (!cpsw->slaves[slave_no].phy)
return -EOPNOTSUPP;
- return phy_mii_ioctl(priv->slaves[slave_no].phy, req, cmd);
+ return phy_mii_ioctl(cpsw->slaves[slave_no].phy, req, cmd);
}
static void cpsw_ndo_tx_timeout(struct net_device *ndev)
{
struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int ch;
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);
+ for (ch = 0; ch < cpsw->tx_ch_num; ch++) {
+ cpdma_chan_stop(cpsw->txch[ch]);
+ cpdma_chan_start(cpsw->txch[ch]);
+ }
+
+ cpsw_intr_enable(cpsw);
}
static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p)
{
struct cpsw_priv *priv = netdev_priv(ndev);
struct sockaddr *addr = (struct sockaddr *)p;
+ struct cpsw_common *cpsw = priv->cpsw;
int flags = 0;
u16 vid = 0;
int ret;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
- ret = pm_runtime_get_sync(&priv->pdev->dev);
+ ret = pm_runtime_get_sync(cpsw->dev);
if (ret < 0) {
- pm_runtime_put_noidle(&priv->pdev->dev);
+ pm_runtime_put_noidle(cpsw->dev);
return ret;
}
- if (priv->data.dual_emac) {
- vid = priv->slaves[priv->emac_port].port_vlan;
+ if (cpsw->data.dual_emac) {
+ vid = cpsw->slaves[priv->emac_port].port_vlan;
flags = ALE_VLAN;
}
- cpsw_ale_del_ucast(priv->ale, priv->mac_addr, HOST_PORT_NUM,
+ cpsw_ale_del_ucast(cpsw->ale, priv->mac_addr, HOST_PORT_NUM,
flags, vid);
- cpsw_ale_add_ucast(priv->ale, addr->sa_data, HOST_PORT_NUM,
+ cpsw_ale_add_ucast(cpsw->ale, addr->sa_data, HOST_PORT_NUM,
flags, vid);
memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN);
for_each_slave(priv, cpsw_set_slave_mac, priv);
- pm_runtime_put(&priv->pdev->dev);
+ pm_runtime_put(cpsw->dev);
return 0;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void cpsw_ndo_poll_controller(struct net_device *ndev)
{
- struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
- cpsw_intr_disable(priv);
- cpsw_rx_interrupt(priv->irqs_table[0], priv);
- cpsw_tx_interrupt(priv->irqs_table[1], priv);
- cpsw_intr_enable(priv);
+ cpsw_intr_disable(cpsw);
+ cpsw_rx_interrupt(cpsw->irqs_table[0], cpsw);
+ cpsw_tx_interrupt(cpsw->irqs_table[1], cpsw);
+ cpsw_intr_enable(cpsw);
}
#endif
int ret;
int unreg_mcast_mask = 0;
u32 port_mask;
+ struct cpsw_common *cpsw = priv->cpsw;
- if (priv->data.dual_emac) {
+ if (cpsw->data.dual_emac) {
port_mask = (1 << (priv->emac_port + 1)) | ALE_PORT_HOST;
if (priv->ndev->flags & IFF_ALLMULTI)
unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2;
}
- ret = cpsw_ale_add_vlan(priv->ale, vid, port_mask, 0, port_mask,
+ ret = cpsw_ale_add_vlan(cpsw->ale, vid, port_mask, 0, port_mask,
unreg_mcast_mask);
if (ret != 0)
return ret;
- ret = cpsw_ale_add_ucast(priv->ale, priv->mac_addr,
+ ret = cpsw_ale_add_ucast(cpsw->ale, priv->mac_addr,
HOST_PORT_NUM, ALE_VLAN, vid);
if (ret != 0)
goto clean_vid;
- ret = cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
+ ret = cpsw_ale_add_mcast(cpsw->ale, priv->ndev->broadcast,
port_mask, ALE_VLAN, vid, 0);
if (ret != 0)
goto clean_vlan_ucast;
return 0;
clean_vlan_ucast:
- cpsw_ale_del_ucast(priv->ale, priv->mac_addr,
+ cpsw_ale_del_ucast(cpsw->ale, priv->mac_addr,
HOST_PORT_NUM, ALE_VLAN, vid);
clean_vid:
- cpsw_ale_del_vlan(priv->ale, vid, 0);
+ cpsw_ale_del_vlan(cpsw->ale, vid, 0);
return ret;
}
__be16 proto, u16 vid)
{
struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
int ret;
- if (vid == priv->data.default_vlan)
+ if (vid == cpsw->data.default_vlan)
return 0;
- ret = pm_runtime_get_sync(&priv->pdev->dev);
+ ret = pm_runtime_get_sync(cpsw->dev);
if (ret < 0) {
- pm_runtime_put_noidle(&priv->pdev->dev);
+ pm_runtime_put_noidle(cpsw->dev);
return ret;
}
- if (priv->data.dual_emac) {
+ if (cpsw->data.dual_emac) {
/* In dual EMAC, reserved VLAN id should not be used for
* creating VLAN interfaces as this can break the dual
* EMAC port separation
*/
int i;
- for (i = 0; i < priv->data.slaves; i++) {
- if (vid == priv->slaves[i].port_vlan)
+ for (i = 0; i < cpsw->data.slaves; i++) {
+ if (vid == cpsw->slaves[i].port_vlan)
return -EINVAL;
}
}
dev_info(priv->dev, "Adding vlanid %d to vlan filter\n", vid);
ret = cpsw_add_vlan_ale_entry(priv, vid);
- pm_runtime_put(&priv->pdev->dev);
+ pm_runtime_put(cpsw->dev);
return ret;
}
__be16 proto, u16 vid)
{
struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
int ret;
- if (vid == priv->data.default_vlan)
+ if (vid == cpsw->data.default_vlan)
return 0;
- ret = pm_runtime_get_sync(&priv->pdev->dev);
+ ret = pm_runtime_get_sync(cpsw->dev);
if (ret < 0) {
- pm_runtime_put_noidle(&priv->pdev->dev);
+ pm_runtime_put_noidle(cpsw->dev);
return ret;
}
- if (priv->data.dual_emac) {
+ if (cpsw->data.dual_emac) {
int i;
- for (i = 0; i < priv->data.slaves; i++) {
- if (vid == priv->slaves[i].port_vlan)
+ for (i = 0; i < cpsw->data.slaves; i++) {
+ if (vid == cpsw->slaves[i].port_vlan)
return -EINVAL;
}
}
dev_info(priv->dev, "removing vlanid %d from vlan filter\n", vid);
- ret = cpsw_ale_del_vlan(priv->ale, vid, 0);
+ ret = cpsw_ale_del_vlan(cpsw->ale, vid, 0);
if (ret != 0)
return ret;
- ret = cpsw_ale_del_ucast(priv->ale, priv->mac_addr,
+ ret = cpsw_ale_del_ucast(cpsw->ale, priv->mac_addr,
HOST_PORT_NUM, ALE_VLAN, vid);
if (ret != 0)
return ret;
- ret = cpsw_ale_del_mcast(priv->ale, priv->ndev->broadcast,
+ ret = cpsw_ale_del_mcast(cpsw->ale, priv->ndev->broadcast,
0, ALE_VLAN, vid);
- pm_runtime_put(&priv->pdev->dev);
+ pm_runtime_put(cpsw->dev);
return ret;
}
static int cpsw_get_regs_len(struct net_device *ndev)
{
- struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
- return priv->data.ale_entries * ALE_ENTRY_WORDS * sizeof(u32);
+ return cpsw->data.ale_entries * ALE_ENTRY_WORDS * sizeof(u32);
}
static void cpsw_get_regs(struct net_device *ndev,
struct ethtool_regs *regs, void *p)
{
- struct cpsw_priv *priv = netdev_priv(ndev);
u32 *reg = p;
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
/* update CPSW IP version */
- regs->version = priv->version;
+ regs->version = cpsw->version;
- cpsw_ale_dump(priv->ale, reg);
+ cpsw_ale_dump(cpsw->ale, reg);
}
static void cpsw_get_drvinfo(struct net_device *ndev,
struct ethtool_drvinfo *info)
{
- struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+ struct platform_device *pdev = to_platform_device(cpsw->dev);
strlcpy(info->driver, "cpsw", sizeof(info->driver));
strlcpy(info->version, "1.0", sizeof(info->version));
- strlcpy(info->bus_info, priv->pdev->name, sizeof(info->bus_info));
+ strlcpy(info->bus_info, pdev->name, sizeof(info->bus_info));
}
static u32 cpsw_get_msglevel(struct net_device *ndev)
struct ethtool_ts_info *info)
{
#ifdef CONFIG_TI_CPTS
- struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
info->so_timestamping =
SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
- info->phc_index = priv->cpts->phc_index;
+ info->phc_index = cpsw->cpts->phc_index;
info->tx_types =
(1 << HWTSTAMP_TX_OFF) |
(1 << HWTSTAMP_TX_ON);
struct ethtool_cmd *ecmd)
{
struct cpsw_priv *priv = netdev_priv(ndev);
- int slave_no = cpsw_slave_index(priv);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int slave_no = cpsw_slave_index(cpsw, priv);
- if (priv->slaves[slave_no].phy)
- return phy_ethtool_gset(priv->slaves[slave_no].phy, ecmd);
+ if (cpsw->slaves[slave_no].phy)
+ return phy_ethtool_gset(cpsw->slaves[slave_no].phy, ecmd);
else
return -EOPNOTSUPP;
}
static int cpsw_set_settings(struct net_device *ndev, struct ethtool_cmd *ecmd)
{
struct cpsw_priv *priv = netdev_priv(ndev);
- int slave_no = cpsw_slave_index(priv);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int slave_no = cpsw_slave_index(cpsw, priv);
- if (priv->slaves[slave_no].phy)
- return phy_ethtool_sset(priv->slaves[slave_no].phy, ecmd);
+ if (cpsw->slaves[slave_no].phy)
+ return phy_ethtool_sset(cpsw->slaves[slave_no].phy, ecmd);
else
return -EOPNOTSUPP;
}
static void cpsw_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
{
struct cpsw_priv *priv = netdev_priv(ndev);
- int slave_no = cpsw_slave_index(priv);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int slave_no = cpsw_slave_index(cpsw, priv);
wol->supported = 0;
wol->wolopts = 0;
- if (priv->slaves[slave_no].phy)
- phy_ethtool_get_wol(priv->slaves[slave_no].phy, wol);
+ if (cpsw->slaves[slave_no].phy)
+ phy_ethtool_get_wol(cpsw->slaves[slave_no].phy, wol);
}
static int cpsw_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
{
struct cpsw_priv *priv = netdev_priv(ndev);
- int slave_no = cpsw_slave_index(priv);
+ struct cpsw_common *cpsw = priv->cpsw;
+ int slave_no = cpsw_slave_index(cpsw, priv);
- if (priv->slaves[slave_no].phy)
- return phy_ethtool_set_wol(priv->slaves[slave_no].phy, wol);
+ if (cpsw->slaves[slave_no].phy)
+ return phy_ethtool_set_wol(cpsw->slaves[slave_no].phy, wol);
else
return -EOPNOTSUPP;
}
static int cpsw_ethtool_op_begin(struct net_device *ndev)
{
struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
int ret;
- ret = pm_runtime_get_sync(&priv->pdev->dev);
+ ret = pm_runtime_get_sync(cpsw->dev);
if (ret < 0) {
cpsw_err(priv, drv, "ethtool begin failed %d\n", ret);
- pm_runtime_put_noidle(&priv->pdev->dev);
+ pm_runtime_put_noidle(cpsw->dev);
}
return ret;
struct cpsw_priv *priv = netdev_priv(ndev);
int ret;
- ret = pm_runtime_put(&priv->pdev->dev);
+ ret = pm_runtime_put(priv->cpsw->dev);
if (ret < 0)
cpsw_err(priv, drv, "ethtool complete failed %d\n", ret);
}
+static void cpsw_get_channels(struct net_device *ndev,
+ struct ethtool_channels *ch)
+{
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+
+ ch->max_combined = 0;
+ ch->max_rx = CPSW_MAX_QUEUES;
+ ch->max_tx = CPSW_MAX_QUEUES;
+ ch->max_other = 0;
+ ch->other_count = 0;
+ ch->rx_count = cpsw->rx_ch_num;
+ ch->tx_count = cpsw->tx_ch_num;
+ ch->combined_count = 0;
+}
+
+static int cpsw_check_ch_settings(struct cpsw_common *cpsw,
+ struct ethtool_channels *ch)
+{
+ if (ch->combined_count)
+ return -EINVAL;
+
+ /* verify we have at least one channel in each direction */
+ if (!ch->rx_count || !ch->tx_count)
+ return -EINVAL;
+
+ if (ch->rx_count > cpsw->data.channels ||
+ ch->tx_count > cpsw->data.channels)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int cpsw_update_channels_res(struct cpsw_priv *priv, int ch_num, int rx)
+{
+ int (*poll)(struct napi_struct *, int);
+ struct cpsw_common *cpsw = priv->cpsw;
+ void (*handler)(void *, int, int);
+ struct cpdma_chan **chan;
+ int ret, *ch;
+
+ if (rx) {
+ ch = &cpsw->rx_ch_num;
+ chan = cpsw->rxch;
+ handler = cpsw_rx_handler;
+ poll = cpsw_rx_poll;
+ } else {
+ ch = &cpsw->tx_ch_num;
+ chan = cpsw->txch;
+ handler = cpsw_tx_handler;
+ poll = cpsw_tx_poll;
+ }
+
+ while (*ch < ch_num) {
+ chan[*ch] = cpdma_chan_create(cpsw->dma, *ch, handler, rx);
+
+ if (IS_ERR(chan[*ch]))
+ return PTR_ERR(chan[*ch]);
+
+ if (!chan[*ch])
+ return -EINVAL;
+
+ cpsw_info(priv, ifup, "created new %d %s channel\n", *ch,
+ (rx ? "rx" : "tx"));
+ (*ch)++;
+ }
+
+ while (*ch > ch_num) {
+ (*ch)--;
+
+ ret = cpdma_chan_destroy(chan[*ch]);
+ if (ret)
+ return ret;
+
+ cpsw_info(priv, ifup, "destroyed %d %s channel\n", *ch,
+ (rx ? "rx" : "tx"));
+ }
+
+ return 0;
+}
+
+static int cpsw_update_channels(struct cpsw_priv *priv,
+ struct ethtool_channels *ch)
+{
+ int ret;
+
+ ret = cpsw_update_channels_res(priv, ch->rx_count, 1);
+ if (ret)
+ return ret;
+
+ ret = cpsw_update_channels_res(priv, ch->tx_count, 0);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int cpsw_set_channels(struct net_device *ndev,
+ struct ethtool_channels *chs)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = priv->cpsw;
+ struct cpsw_slave *slave;
+ int i, ret;
+
+ ret = cpsw_check_ch_settings(cpsw, chs);
+ if (ret < 0)
+ return ret;
+
+ /* Disable NAPI scheduling */
+ cpsw_intr_disable(cpsw);
+
+ /* Stop all transmit queues for every network device.
+ * Disable re-using rx descriptors with dormant_on.
+ */
+ for (i = cpsw->data.slaves, slave = cpsw->slaves; i; i--, slave++) {
+ if (!(slave->ndev && netif_running(slave->ndev)))
+ continue;
+
+ netif_tx_stop_all_queues(slave->ndev);
+ netif_dormant_on(slave->ndev);
+ }
+
+ /* Handle rest of tx packets and stop cpdma channels */
+ cpdma_ctlr_stop(cpsw->dma);
+ ret = cpsw_update_channels(priv, chs);
+ if (ret)
+ goto err;
+
+ for (i = cpsw->data.slaves, slave = cpsw->slaves; i; i--, slave++) {
+ if (!(slave->ndev && netif_running(slave->ndev)))
+ continue;
+
+ /* Inform stack about new count of queues */
+ ret = netif_set_real_num_tx_queues(slave->ndev,
+ cpsw->tx_ch_num);
+ if (ret) {
+ dev_err(priv->dev, "cannot set real number of tx queues\n");
+ goto err;
+ }
+
+ ret = netif_set_real_num_rx_queues(slave->ndev,
+ cpsw->rx_ch_num);
+ if (ret) {
+ dev_err(priv->dev, "cannot set real number of rx queues\n");
+ goto err;
+ }
+
+ /* Enable rx packets handling */
+ netif_dormant_off(slave->ndev);
+ }
+
+ if (cpsw_common_res_usage_state(cpsw)) {
+ ret = cpsw_fill_rx_channels(priv);
+ if (ret)
+ goto err;
+
+ /* After this receive is started */
+ cpdma_ctlr_start(cpsw->dma);
+ cpsw_intr_enable(cpsw);
+ }
+
+ /* Resume transmit for every affected interface */
+ for (i = cpsw->data.slaves, slave = cpsw->slaves; i; i--, slave++) {
+ if (!(slave->ndev && netif_running(slave->ndev)))
+ continue;
+ netif_tx_start_all_queues(slave->ndev);
+ }
+ return 0;
+err:
+ dev_err(priv->dev, "cannot update channels number, closing device\n");
+ dev_close(ndev);
+ return ret;
+}
+
static const struct ethtool_ops cpsw_ethtool_ops = {
.get_drvinfo = cpsw_get_drvinfo,
.get_msglevel = cpsw_get_msglevel,
.get_regs = cpsw_get_regs,
.begin = cpsw_ethtool_op_begin,
.complete = cpsw_ethtool_op_complete,
+ .get_channels = cpsw_get_channels,
+ .set_channels = cpsw_set_channels,
};
-static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv,
+static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_common *cpsw,
u32 slave_reg_ofs, u32 sliver_reg_ofs)
{
- void __iomem *regs = priv->regs;
+ void __iomem *regs = cpsw->regs;
int slave_num = slave->slave_num;
- struct cpsw_slave_data *data = priv->data.slave_data + slave_num;
+ struct cpsw_slave_data *data = cpsw->data.slave_data + slave_num;
slave->data = data;
slave->regs = regs + slave_reg_ofs;
return 0;
}
-static int cpsw_probe_dual_emac(struct platform_device *pdev,
- struct cpsw_priv *priv)
+static int cpsw_probe_dual_emac(struct cpsw_priv *priv)
{
- struct cpsw_platform_data *data = &priv->data;
+ struct cpsw_common *cpsw = priv->cpsw;
+ struct cpsw_platform_data *data = &cpsw->data;
struct net_device *ndev;
struct cpsw_priv *priv_sl2;
- int ret = 0, i;
+ int ret = 0;
- ndev = alloc_etherdev(sizeof(struct cpsw_priv));
+ ndev = alloc_etherdev_mq(sizeof(struct cpsw_priv), CPSW_MAX_QUEUES);
if (!ndev) {
- dev_err(&pdev->dev, "cpsw: error allocating net_device\n");
+ dev_err(cpsw->dev, "cpsw: error allocating net_device\n");
return -ENOMEM;
}
priv_sl2 = netdev_priv(ndev);
- priv_sl2->data = *data;
- priv_sl2->pdev = pdev;
+ priv_sl2->cpsw = cpsw;
priv_sl2->ndev = ndev;
priv_sl2->dev = &ndev->dev;
priv_sl2->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG);
- priv_sl2->rx_packet_max = max(rx_packet_max, 128);
if (is_valid_ether_addr(data->slave_data[1].mac_addr)) {
memcpy(priv_sl2->mac_addr, data->slave_data[1].mac_addr,
ETH_ALEN);
- dev_info(&pdev->dev, "cpsw: Detected MACID = %pM\n", priv_sl2->mac_addr);
+ dev_info(cpsw->dev, "cpsw: Detected MACID = %pM\n",
+ priv_sl2->mac_addr);
} else {
random_ether_addr(priv_sl2->mac_addr);
- dev_info(&pdev->dev, "cpsw: Random MACID = %pM\n", priv_sl2->mac_addr);
+ dev_info(cpsw->dev, "cpsw: Random MACID = %pM\n",
+ priv_sl2->mac_addr);
}
memcpy(ndev->dev_addr, priv_sl2->mac_addr, ETH_ALEN);
- priv_sl2->slaves = priv->slaves;
- priv_sl2->clk = priv->clk;
-
- priv_sl2->coal_intvl = 0;
- priv_sl2->bus_freq_mhz = priv->bus_freq_mhz;
-
- priv_sl2->regs = priv->regs;
- priv_sl2->host_port_regs = priv->host_port_regs;
- priv_sl2->wr_regs = priv->wr_regs;
- priv_sl2->hw_stats = priv->hw_stats;
- 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;
- 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;
- }
+ cpsw->slaves[1].ndev = ndev;
ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
ndev->netdev_ops = &cpsw_netdev_ops;
ndev->ethtool_ops = &cpsw_ethtool_ops;
/* register the network device */
- SET_NETDEV_DEV(ndev, &pdev->dev);
+ SET_NETDEV_DEV(ndev, cpsw->dev);
ret = register_netdev(ndev);
if (ret) {
- dev_err(&pdev->dev, "cpsw: error registering net device\n");
+ dev_err(cpsw->dev, "cpsw: error registering net device\n");
free_netdev(ndev);
ret = -ENODEV;
}
static int cpsw_probe(struct platform_device *pdev)
{
+ struct clk *clk;
struct cpsw_platform_data *data;
struct net_device *ndev;
struct cpsw_priv *priv;
const struct of_device_id *of_id;
struct gpio_descs *mode;
u32 slave_offset, sliver_offset, slave_size;
+ struct cpsw_common *cpsw;
int ret = 0, i;
int irq;
- ndev = alloc_etherdev(sizeof(struct cpsw_priv));
+ cpsw = devm_kzalloc(&pdev->dev, sizeof(struct cpsw_common), GFP_KERNEL);
+ cpsw->dev = &pdev->dev;
+
+ ndev = alloc_etherdev_mq(sizeof(struct cpsw_priv), CPSW_MAX_QUEUES);
if (!ndev) {
dev_err(&pdev->dev, "error allocating net_device\n");
return -ENOMEM;
platform_set_drvdata(pdev, ndev);
priv = netdev_priv(ndev);
- priv->pdev = pdev;
+ priv->cpsw = cpsw;
priv->ndev = ndev;
priv->dev = &ndev->dev;
priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG);
- priv->rx_packet_max = max(rx_packet_max, 128);
- priv->cpts = devm_kzalloc(&pdev->dev, sizeof(struct cpts), GFP_KERNEL);
- if (!priv->cpts) {
+ cpsw->rx_packet_max = max(rx_packet_max, 128);
+ cpsw->cpts = devm_kzalloc(&pdev->dev, sizeof(struct cpts), GFP_KERNEL);
+ if (!cpsw->cpts) {
dev_err(&pdev->dev, "error allocating cpts\n");
ret = -ENOMEM;
goto clean_ndev_ret;
/* Select default pin state */
pinctrl_pm_select_default_state(&pdev->dev);
- if (cpsw_probe_dt(&priv->data, pdev)) {
+ if (cpsw_probe_dt(&cpsw->data, pdev)) {
dev_err(&pdev->dev, "cpsw: platform data missing\n");
ret = -ENODEV;
goto clean_runtime_disable_ret;
}
- data = &priv->data;
+ data = &cpsw->data;
+ cpsw->rx_ch_num = 1;
+ cpsw->tx_ch_num = 1;
if (is_valid_ether_addr(data->slave_data[0].mac_addr)) {
memcpy(priv->mac_addr, data->slave_data[0].mac_addr, ETH_ALEN);
memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN);
- priv->slaves = devm_kzalloc(&pdev->dev,
+ cpsw->slaves = devm_kzalloc(&pdev->dev,
sizeof(struct cpsw_slave) * data->slaves,
GFP_KERNEL);
- if (!priv->slaves) {
+ if (!cpsw->slaves) {
ret = -ENOMEM;
goto clean_runtime_disable_ret;
}
for (i = 0; i < data->slaves; i++)
- priv->slaves[i].slave_num = i;
+ cpsw->slaves[i].slave_num = i;
- priv->slaves[0].ndev = ndev;
+ cpsw->slaves[0].ndev = ndev;
priv->emac_port = 0;
- priv->clk = devm_clk_get(&pdev->dev, "fck");
- if (IS_ERR(priv->clk)) {
+ clk = devm_clk_get(&pdev->dev, "fck");
+ if (IS_ERR(clk)) {
dev_err(priv->dev, "fck is not found\n");
ret = -ENODEV;
goto clean_runtime_disable_ret;
}
- priv->coal_intvl = 0;
- priv->bus_freq_mhz = clk_get_rate(priv->clk) / 1000000;
+ cpsw->bus_freq_mhz = clk_get_rate(clk) / 1000000;
ss_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ss_regs = devm_ioremap_resource(&pdev->dev, ss_res);
ret = PTR_ERR(ss_regs);
goto clean_runtime_disable_ret;
}
- priv->regs = ss_regs;
+ cpsw->regs = ss_regs;
/* Need to enable clocks with runtime PM api to access module
* registers
pm_runtime_put_noidle(&pdev->dev);
goto clean_runtime_disable_ret;
}
- priv->version = readl(&priv->regs->id_ver);
+ cpsw->version = readl(&cpsw->regs->id_ver);
pm_runtime_put_sync(&pdev->dev);
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- priv->wr_regs = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(priv->wr_regs)) {
- ret = PTR_ERR(priv->wr_regs);
+ cpsw->wr_regs = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(cpsw->wr_regs)) {
+ ret = PTR_ERR(cpsw->wr_regs);
goto clean_runtime_disable_ret;
}
memset(&dma_params, 0, sizeof(dma_params));
memset(&ale_params, 0, sizeof(ale_params));
- switch (priv->version) {
+ switch (cpsw->version) {
case CPSW_VERSION_1:
- priv->host_port_regs = ss_regs + CPSW1_HOST_PORT_OFFSET;
- priv->cpts->reg = ss_regs + CPSW1_CPTS_OFFSET;
- priv->hw_stats = ss_regs + CPSW1_HW_STATS;
+ cpsw->host_port_regs = ss_regs + CPSW1_HOST_PORT_OFFSET;
+ cpsw->cpts->reg = ss_regs + CPSW1_CPTS_OFFSET;
+ cpsw->hw_stats = ss_regs + CPSW1_HW_STATS;
dma_params.dmaregs = ss_regs + CPSW1_CPDMA_OFFSET;
dma_params.txhdp = ss_regs + CPSW1_STATERAM_OFFSET;
ale_params.ale_regs = ss_regs + CPSW1_ALE_OFFSET;
case CPSW_VERSION_2:
case CPSW_VERSION_3:
case CPSW_VERSION_4:
- priv->host_port_regs = ss_regs + CPSW2_HOST_PORT_OFFSET;
- priv->cpts->reg = ss_regs + CPSW2_CPTS_OFFSET;
- priv->hw_stats = ss_regs + CPSW2_HW_STATS;
+ cpsw->host_port_regs = ss_regs + CPSW2_HOST_PORT_OFFSET;
+ cpsw->cpts->reg = ss_regs + CPSW2_CPTS_OFFSET;
+ cpsw->hw_stats = ss_regs + CPSW2_HW_STATS;
dma_params.dmaregs = ss_regs + CPSW2_CPDMA_OFFSET;
dma_params.txhdp = ss_regs + CPSW2_STATERAM_OFFSET;
ale_params.ale_regs = ss_regs + CPSW2_ALE_OFFSET;
(u32 __force) ss_res->start + CPSW2_BD_OFFSET;
break;
default:
- dev_err(priv->dev, "unknown version 0x%08x\n", priv->version);
+ dev_err(priv->dev, "unknown version 0x%08x\n", cpsw->version);
ret = -ENODEV;
goto clean_runtime_disable_ret;
}
- for (i = 0; i < priv->data.slaves; i++) {
- struct cpsw_slave *slave = &priv->slaves[i];
- cpsw_slave_init(slave, priv, slave_offset, sliver_offset);
+ for (i = 0; i < cpsw->data.slaves; i++) {
+ struct cpsw_slave *slave = &cpsw->slaves[i];
+
+ cpsw_slave_init(slave, cpsw, slave_offset, sliver_offset);
slave_offset += slave_size;
sliver_offset += SLIVER_SIZE;
}
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_tx_handler);
- priv->rxch = cpdma_chan_create(priv->dma, rx_chan_num(0),
- cpsw_rx_handler);
-
- if (WARN_ON(!priv->txch || !priv->rxch)) {
+ cpsw->txch[0] = cpdma_chan_create(cpsw->dma, 0, cpsw_tx_handler, 0);
+ cpsw->rxch[0] = cpdma_chan_create(cpsw->dma, 0, cpsw_rx_handler, 1);
+ if (WARN_ON(!cpsw->rxch[0] || !cpsw->txch[0])) {
dev_err(priv->dev, "error initializing dma channels\n");
ret = -ENOMEM;
goto clean_dma_ret;
ale_params.ale_entries = data->ale_entries;
ale_params.ale_ports = data->slaves;
- priv->ale = cpsw_ale_create(&ale_params);
- if (!priv->ale) {
+ cpsw->ale = cpsw_ale_create(&ale_params);
+ if (!cpsw->ale) {
dev_err(priv->dev, "error initializing ale engine\n");
ret = -ENODEV;
goto clean_dma_ret;
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
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);
+ 0, dev_name(&pdev->dev), cpsw);
if (ret < 0) {
dev_err(priv->dev, "error attaching irq (%d)\n", ret);
goto clean_ale_ret;
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);
+ 0, dev_name(&pdev->dev), cpsw);
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;
ndev->netdev_ops = &cpsw_netdev_ops;
ndev->ethtool_ops = &cpsw_ethtool_ops;
- netif_napi_add(ndev, &priv->napi_rx, cpsw_rx_poll, CPSW_POLL_WEIGHT);
- netif_tx_napi_add(ndev, &priv->napi_tx, cpsw_tx_poll, CPSW_POLL_WEIGHT);
+ netif_napi_add(ndev, &cpsw->napi_rx, cpsw_rx_poll, CPSW_POLL_WEIGHT);
+ netif_tx_napi_add(ndev, &cpsw->napi_tx, cpsw_tx_poll, CPSW_POLL_WEIGHT);
/* register the network device */
SET_NETDEV_DEV(ndev, &pdev->dev);
cpsw_notice(priv, probe, "initialized device (regs %pa, irq %d)\n",
&ss_res->start, ndev->irq);
- if (priv->data.dual_emac) {
- ret = cpsw_probe_dual_emac(pdev, priv);
+ if (cpsw->data.dual_emac) {
+ ret = cpsw_probe_dual_emac(priv);
if (ret) {
cpsw_err(priv, probe, "error probe slave 2 emac interface\n");
goto clean_ale_ret;
return 0;
clean_ale_ret:
- cpsw_ale_destroy(priv->ale);
+ cpsw_ale_destroy(cpsw->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:
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 = ndev_to_cpsw(ndev);
int ret;
ret = pm_runtime_get_sync(&pdev->dev);
return ret;
}
- if (priv->data.dual_emac)
- unregister_netdev(cpsw_get_slave_ndev(priv, 1));
+ if (cpsw->data.dual_emac)
+ unregister_netdev(cpsw->slaves[1].ndev);
unregister_netdev(ndev);
- cpsw_ale_destroy(priv->ale);
- cpdma_ctlr_destroy(priv->dma);
+ cpsw_ale_destroy(cpsw->ale);
+ cpdma_ctlr_destroy(cpsw->dma);
of_platform_depopulate(&pdev->dev);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
- if (priv->data.dual_emac)
- free_netdev(cpsw_get_slave_ndev(priv, 1));
+ if (cpsw->data.dual_emac)
+ free_netdev(cpsw->slaves[1].ndev);
free_netdev(ndev);
return 0;
}
{
struct platform_device *pdev = to_platform_device(dev);
struct net_device *ndev = platform_get_drvdata(pdev);
- struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
- if (priv->data.dual_emac) {
+ if (cpsw->data.dual_emac) {
int i;
- for (i = 0; i < priv->data.slaves; i++) {
- if (netif_running(priv->slaves[i].ndev))
- cpsw_ndo_stop(priv->slaves[i].ndev);
+ for (i = 0; i < cpsw->data.slaves; i++) {
+ if (netif_running(cpsw->slaves[i].ndev))
+ cpsw_ndo_stop(cpsw->slaves[i].ndev);
}
} else {
if (netif_running(ndev))
}
/* Select sleep pin state */
- pinctrl_pm_select_sleep_state(&pdev->dev);
+ pinctrl_pm_select_sleep_state(dev);
return 0;
}
{
struct platform_device *pdev = to_platform_device(dev);
struct net_device *ndev = platform_get_drvdata(pdev);
- struct cpsw_priv *priv = netdev_priv(ndev);
+ struct cpsw_common *cpsw = netdev_priv(ndev);
/* Select default pin state */
- pinctrl_pm_select_default_state(&pdev->dev);
+ pinctrl_pm_select_default_state(dev);
- if (priv->data.dual_emac) {
+ if (cpsw->data.dual_emac) {
int i;
- for (i = 0; i < priv->data.slaves; i++) {
- if (netif_running(priv->slaves[i].ndev))
- cpsw_ndo_open(priv->slaves[i].ndev);
+ for (i = 0; i < cpsw->data.slaves; i++) {
+ if (netif_running(cpsw->slaves[i].ndev))
+ cpsw_ndo_open(cpsw->slaves[i].ndev);
}
} else {
if (netif_running(ndev))
projects / deliverable / linux.git / blobdiff