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path: root/drivers/net/ethernet/ti/am65-cpsw-nuss.c
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Diffstat (limited to 'drivers/net/ethernet/ti/am65-cpsw-nuss.c')
-rw-r--r--drivers/net/ethernet/ti/am65-cpsw-nuss.c355
1 files changed, 219 insertions, 136 deletions
diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
index 501d676fd88b..766e8866bbef 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -241,8 +241,8 @@ static int am65_cpsw_nuss_ndo_slave_add_vid(struct net_device *ndev,
if (!vid)
unreg_mcast = port_mask;
dev_info(common->dev, "Adding vlan %d to vlan filter\n", vid);
- ret = cpsw_ale_add_vlan(common->ale, vid, port_mask,
- unreg_mcast, port_mask, 0);
+ ret = cpsw_ale_vlan_add_modify(common->ale, vid, port_mask,
+ unreg_mcast, port_mask, 0);
pm_runtime_put(common->dev);
return ret;
@@ -252,6 +252,7 @@ static int am65_cpsw_nuss_ndo_slave_kill_vid(struct net_device *ndev,
__be16 proto, u16 vid)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
+ struct am65_cpsw_port *port = am65_ndev_to_port(ndev);
int ret;
if (!netif_running(ndev) || !vid)
@@ -264,14 +265,15 @@ static int am65_cpsw_nuss_ndo_slave_kill_vid(struct net_device *ndev,
}
dev_info(common->dev, "Removing vlan %d from vlan filter\n", vid);
- ret = cpsw_ale_del_vlan(common->ale, vid, 0);
+ ret = cpsw_ale_del_vlan(common->ale, vid,
+ BIT(port->port_id) | ALE_PORT_HOST);
pm_runtime_put(common->dev);
return ret;
}
-static void am65_cpsw_slave_set_promisc_2g(struct am65_cpsw_port *port,
- bool promisc)
+static void am65_cpsw_slave_set_promisc(struct am65_cpsw_port *port,
+ bool promisc)
{
struct am65_cpsw_common *common = port->common;
@@ -296,7 +298,7 @@ static void am65_cpsw_nuss_ndo_slave_set_rx_mode(struct net_device *ndev)
bool promisc;
promisc = !!(ndev->flags & IFF_PROMISC);
- am65_cpsw_slave_set_promisc_2g(port, promisc);
+ am65_cpsw_slave_set_promisc(port, promisc);
if (promisc)
return;
@@ -373,7 +375,7 @@ static int am65_cpsw_nuss_rx_push(struct am65_cpsw_common *common,
cppi5_hdesc_init(desc_rx, CPPI5_INFO0_HDESC_EPIB_PRESENT,
AM65_CPSW_NAV_PS_DATA_SIZE);
- cppi5_hdesc_attach_buf(desc_rx, 0, 0, buf_dma, skb_tailroom(skb));
+ cppi5_hdesc_attach_buf(desc_rx, buf_dma, skb_tailroom(skb), buf_dma, skb_tailroom(skb));
swdata = cppi5_hdesc_get_swdata(desc_rx);
*((void **)swdata) = skb;
@@ -426,9 +428,7 @@ static int am65_cpsw_nuss_common_open(struct am65_cpsw_common *common,
writel(common->rx_flow_id_base,
host_p->port_base + AM65_CPSW_PORT0_REG_FLOW_ID_OFFSET);
/* en tx crc offload */
- if (features & NETIF_F_HW_CSUM)
- writel(AM65_CPSW_P0_REG_CTL_RX_CHECKSUM_EN,
- host_p->port_base + AM65_CPSW_P0_REG_CTL);
+ writel(AM65_CPSW_P0_REG_CTL_RX_CHECKSUM_EN, host_p->port_base + AM65_CPSW_P0_REG_CTL);
am65_cpsw_nuss_set_p0_ptype(common);
@@ -629,13 +629,13 @@ static int am65_cpsw_nuss_ndo_slave_open(struct net_device *ndev)
am65_cpsw_port_set_sl_mac(port, ndev->dev_addr);
- if (port->slave.mac_only)
+ if (port->slave.mac_only) {
/* enable mac-only mode on port */
cpsw_ale_control_set(common->ale, port->port_id,
ALE_PORT_MACONLY, 1);
- if (AM65_CPSW_IS_CPSW2G(common))
cpsw_ale_control_set(common->ale, port->port_id,
ALE_PORT_NOLEARN, 1);
+ }
port_mask = BIT(port->port_id) | ALE_PORT_HOST;
cpsw_ale_add_ucast(common->ale, ndev->dev_addr,
@@ -767,7 +767,7 @@ static int am65_cpsw_nuss_rx_packets(struct am65_cpsw_common *common,
return ret;
}
- if (desc_dma & 0x1) {
+ if (cppi5_desc_is_tdcm(desc_dma)) {
dev_dbg(dev, "%s RX tdown flow: %u\n", __func__, flow_idx);
return 0;
}
@@ -911,10 +911,57 @@ static void am65_cpsw_nuss_tx_cleanup(void *data, dma_addr_t desc_dma)
dev_kfree_skb_any(skb);
}
+static struct sk_buff *
+am65_cpsw_nuss_tx_compl_packet(struct am65_cpsw_tx_chn *tx_chn,
+ dma_addr_t desc_dma)
+{
+ struct am65_cpsw_ndev_priv *ndev_priv;
+ struct am65_cpsw_ndev_stats *stats;
+ struct cppi5_host_desc_t *desc_tx;
+ struct net_device *ndev;
+ struct sk_buff *skb;
+ void **swdata;
+
+ desc_tx = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool,
+ desc_dma);
+ swdata = cppi5_hdesc_get_swdata(desc_tx);
+ skb = *(swdata);
+ am65_cpsw_nuss_xmit_free(tx_chn, tx_chn->common->dev, desc_tx);
+
+ ndev = skb->dev;
+
+ am65_cpts_tx_timestamp(tx_chn->common->cpts, skb);
+
+ ndev_priv = netdev_priv(ndev);
+ stats = this_cpu_ptr(ndev_priv->stats);
+ u64_stats_update_begin(&stats->syncp);
+ stats->tx_packets++;
+ stats->tx_bytes += skb->len;
+ u64_stats_update_end(&stats->syncp);
+
+ return skb;
+}
+
+static void am65_cpsw_nuss_tx_wake(struct am65_cpsw_tx_chn *tx_chn, struct net_device *ndev,
+ struct netdev_queue *netif_txq)
+{
+ if (netif_tx_queue_stopped(netif_txq)) {
+ /* Check whether the queue is stopped due to stalled
+ * tx dma, if the queue is stopped then wake the queue
+ * as we have free desc for tx
+ */
+ __netif_tx_lock(netif_txq, smp_processor_id());
+ if (netif_running(ndev) &&
+ (k3_cppi_desc_pool_avail(tx_chn->desc_pool) >= MAX_SKB_FRAGS))
+ netif_tx_wake_queue(netif_txq);
+
+ __netif_tx_unlock(netif_txq);
+ }
+}
+
static int am65_cpsw_nuss_tx_compl_packets(struct am65_cpsw_common *common,
int chn, unsigned int budget)
{
- struct cppi5_host_desc_t *desc_tx;
struct device *dev = common->dev;
struct am65_cpsw_tx_chn *tx_chn;
struct netdev_queue *netif_txq;
@@ -923,41 +970,68 @@ static int am65_cpsw_nuss_tx_compl_packets(struct am65_cpsw_common *common,
struct sk_buff *skb;
dma_addr_t desc_dma;
int res, num_tx = 0;
- void **swdata;
tx_chn = &common->tx_chns[chn];
while (true) {
- struct am65_cpsw_ndev_priv *ndev_priv;
- struct am65_cpsw_ndev_stats *stats;
-
+ spin_lock(&tx_chn->lock);
res = k3_udma_glue_pop_tx_chn(tx_chn->tx_chn, &desc_dma);
+ spin_unlock(&tx_chn->lock);
if (res == -ENODATA)
break;
- if (desc_dma & 0x1) {
+ if (cppi5_desc_is_tdcm(desc_dma)) {
if (atomic_dec_and_test(&common->tdown_cnt))
complete(&common->tdown_complete);
break;
}
- desc_tx = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool,
- desc_dma);
- swdata = cppi5_hdesc_get_swdata(desc_tx);
- skb = *(swdata);
- am65_cpsw_nuss_xmit_free(tx_chn, dev, desc_tx);
-
+ skb = am65_cpsw_nuss_tx_compl_packet(tx_chn, desc_dma);
+ total_bytes = skb->len;
ndev = skb->dev;
+ napi_consume_skb(skb, budget);
+ num_tx++;
- am65_cpts_tx_timestamp(common->cpts, skb);
+ netif_txq = netdev_get_tx_queue(ndev, chn);
- ndev_priv = netdev_priv(ndev);
- stats = this_cpu_ptr(ndev_priv->stats);
- u64_stats_update_begin(&stats->syncp);
- stats->tx_packets++;
- stats->tx_bytes += skb->len;
- u64_stats_update_end(&stats->syncp);
+ netdev_tx_completed_queue(netif_txq, num_tx, total_bytes);
+ am65_cpsw_nuss_tx_wake(tx_chn, ndev, netif_txq);
+ }
+
+ dev_dbg(dev, "%s:%u pkt:%d\n", __func__, chn, num_tx);
+
+ return num_tx;
+}
+
+static int am65_cpsw_nuss_tx_compl_packets_2g(struct am65_cpsw_common *common,
+ int chn, unsigned int budget)
+{
+ struct device *dev = common->dev;
+ struct am65_cpsw_tx_chn *tx_chn;
+ struct netdev_queue *netif_txq;
+ unsigned int total_bytes = 0;
+ struct net_device *ndev;
+ struct sk_buff *skb;
+ dma_addr_t desc_dma;
+ int res, num_tx = 0;
+
+ tx_chn = &common->tx_chns[chn];
+
+ while (true) {
+ res = k3_udma_glue_pop_tx_chn(tx_chn->tx_chn, &desc_dma);
+ if (res == -ENODATA)
+ break;
+
+ if (cppi5_desc_is_tdcm(desc_dma)) {
+ if (atomic_dec_and_test(&common->tdown_cnt))
+ complete(&common->tdown_complete);
+ break;
+ }
+
+ skb = am65_cpsw_nuss_tx_compl_packet(tx_chn, desc_dma);
+
+ ndev = skb->dev;
total_bytes += skb->len;
napi_consume_skb(skb, budget);
num_tx++;
@@ -970,19 +1044,8 @@ static int am65_cpsw_nuss_tx_compl_packets(struct am65_cpsw_common *common,
netdev_tx_completed_queue(netif_txq, num_tx, total_bytes);
- if (netif_tx_queue_stopped(netif_txq)) {
- /* Check whether the queue is stopped due to stalled tx dma,
- * if the queue is stopped then wake the queue as
- * we have free desc for tx
- */
- __netif_tx_lock(netif_txq, smp_processor_id());
- if (netif_running(ndev) &&
- (k3_cppi_desc_pool_avail(tx_chn->desc_pool) >=
- MAX_SKB_FRAGS))
- netif_tx_wake_queue(netif_txq);
+ am65_cpsw_nuss_tx_wake(tx_chn, ndev, netif_txq);
- __netif_tx_unlock(netif_txq);
- }
dev_dbg(dev, "%s:%u pkt:%d\n", __func__, chn, num_tx);
return num_tx;
@@ -993,8 +1056,11 @@ static int am65_cpsw_nuss_tx_poll(struct napi_struct *napi_tx, int budget)
struct am65_cpsw_tx_chn *tx_chn = am65_cpsw_napi_to_tx_chn(napi_tx);
int num_tx;
- num_tx = am65_cpsw_nuss_tx_compl_packets(tx_chn->common, tx_chn->id,
- budget);
+ if (AM65_CPSW_IS_CPSW2G(tx_chn->common))
+ num_tx = am65_cpsw_nuss_tx_compl_packets_2g(tx_chn->common, tx_chn->id, budget);
+ else
+ num_tx = am65_cpsw_nuss_tx_compl_packets(tx_chn->common, tx_chn->id, budget);
+
num_tx = min(num_tx, budget);
if (num_tx < budget) {
napi_complete(napi_tx);
@@ -1139,7 +1205,13 @@ done_tx:
cppi5_hdesc_set_pktlen(first_desc, pkt_len);
desc_dma = k3_cppi_desc_pool_virt2dma(tx_chn->desc_pool, first_desc);
- ret = k3_udma_glue_push_tx_chn(tx_chn->tx_chn, first_desc, desc_dma);
+ if (AM65_CPSW_IS_CPSW2G(common)) {
+ ret = k3_udma_glue_push_tx_chn(tx_chn->tx_chn, first_desc, desc_dma);
+ } else {
+ spin_lock_bh(&tx_chn->lock);
+ ret = k3_udma_glue_push_tx_chn(tx_chn->tx_chn, first_desc, desc_dma);
+ spin_unlock_bh(&tx_chn->lock);
+ }
if (ret) {
dev_err(dev, "can't push desc %d\n", ret);
/* inform bql */
@@ -1369,32 +1441,7 @@ static void am65_cpsw_nuss_ndo_get_stats(struct net_device *dev,
stats->tx_dropped = dev->stats.tx_dropped;
}
-static int am65_cpsw_nuss_ndo_slave_set_features(struct net_device *ndev,
- netdev_features_t features)
-{
- struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
- netdev_features_t changes = features ^ ndev->features;
- struct am65_cpsw_host *host_p;
-
- host_p = am65_common_get_host(common);
-
- if (changes & NETIF_F_HW_CSUM) {
- bool enable = !!(features & NETIF_F_HW_CSUM);
-
- dev_info(common->dev, "Turn %s tx-checksum-ip-generic\n",
- enable ? "ON" : "OFF");
- if (enable)
- writel(AM65_CPSW_P0_REG_CTL_RX_CHECKSUM_EN,
- host_p->port_base + AM65_CPSW_P0_REG_CTL);
- else
- writel(0,
- host_p->port_base + AM65_CPSW_P0_REG_CTL);
- }
-
- return 0;
-}
-
-static const struct net_device_ops am65_cpsw_nuss_netdev_ops_2g = {
+static const struct net_device_ops am65_cpsw_nuss_netdev_ops = {
.ndo_open = am65_cpsw_nuss_ndo_slave_open,
.ndo_stop = am65_cpsw_nuss_ndo_slave_stop,
.ndo_start_xmit = am65_cpsw_nuss_ndo_slave_xmit,
@@ -1406,7 +1453,6 @@ static const struct net_device_ops am65_cpsw_nuss_netdev_ops_2g = {
.ndo_vlan_rx_add_vid = am65_cpsw_nuss_ndo_slave_add_vid,
.ndo_vlan_rx_kill_vid = am65_cpsw_nuss_ndo_slave_kill_vid,
.ndo_do_ioctl = am65_cpsw_nuss_ndo_slave_ioctl,
- .ndo_set_features = am65_cpsw_nuss_ndo_slave_set_features,
.ndo_setup_tc = am65_cpsw_qos_ndo_setup_tc,
};
@@ -1417,7 +1463,6 @@ static void am65_cpsw_nuss_slave_disable_unused(struct am65_cpsw_port *port)
if (!port->disabled)
return;
- common->disabled_ports_mask |= BIT(port->port_id);
cpsw_ale_control_set(common->ale, port->port_id,
ALE_PORT_STATE, ALE_PORT_STATE_DISABLE);
@@ -1496,6 +1541,7 @@ static int am65_cpsw_nuss_init_tx_chns(struct am65_cpsw_common *common)
snprintf(tx_chn->tx_chn_name,
sizeof(tx_chn->tx_chn_name), "tx%d", i);
+ spin_lock_init(&tx_chn->lock);
tx_chn->common = common;
tx_chn->id = i;
tx_chn->descs_num = max_desc_num;
@@ -1515,9 +1561,8 @@ static int am65_cpsw_nuss_init_tx_chns(struct am65_cpsw_common *common)
tx_chn->tx_chn_name,
&tx_cfg);
if (IS_ERR(tx_chn->tx_chn)) {
- ret = PTR_ERR(tx_chn->tx_chn);
- dev_err(dev, "Failed to request tx dma channel %d\n",
- ret);
+ ret = dev_err_probe(dev, PTR_ERR(tx_chn->tx_chn),
+ "Failed to request tx dma channel\n");
goto err;
}
@@ -1588,8 +1633,8 @@ static int am65_cpsw_nuss_init_rx_chns(struct am65_cpsw_common *common)
rx_chn->rx_chn = k3_udma_glue_request_rx_chn(dev, "rx", &rx_cfg);
if (IS_ERR(rx_chn->rx_chn)) {
- ret = PTR_ERR(rx_chn->rx_chn);
- dev_err(dev, "Failed to request rx dma channel %d\n", ret);
+ ret = dev_err_probe(dev, PTR_ERR(rx_chn->rx_chn),
+ "Failed to request rx dma channel\n");
goto err;
}
@@ -1606,7 +1651,6 @@ static int am65_cpsw_nuss_init_rx_chns(struct am65_cpsw_common *common)
};
struct k3_ring_cfg fdqring_cfg = {
.elm_size = K3_RINGACC_RING_ELSIZE_8,
- .mode = K3_RINGACC_RING_MODE_MESSAGE,
.flags = K3_RINGACC_RING_SHARED,
};
struct k3_udma_glue_rx_flow_cfg rx_flow_cfg = {
@@ -1620,6 +1664,7 @@ static int am65_cpsw_nuss_init_rx_chns(struct am65_cpsw_common *common)
rx_flow_cfg.ring_rxfdq0_id = fdqring_id;
rx_flow_cfg.rx_cfg.size = max_desc_num;
rx_flow_cfg.rxfdq_cfg.size = max_desc_num;
+ rx_flow_cfg.rxfdq_cfg.mode = common->pdata.fdqring_mode;
ret = k3_udma_glue_rx_flow_init(rx_chn->rx_chn,
i, &rx_flow_cfg);
@@ -1725,6 +1770,13 @@ static int am65_cpsw_init_cpts(struct am65_cpsw_common *common)
return ret;
}
common->cpts = cpts;
+ /* Forbid PM runtime if CPTS is running.
+ * K3 CPSWxG modules may completely lose context during ON->OFF
+ * transitions depending on integration.
+ * AM65x/J721E MCU CPSW2G: false
+ * J721E MAIN_CPSW9G: true
+ */
+ pm_runtime_forbid(dev);
return 0;
}
@@ -1778,8 +1830,10 @@ static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common)
return PTR_ERR(port->slave.mac_sl);
port->disabled = !of_device_is_available(port_np);
- if (port->disabled)
+ if (port->disabled) {
+ common->disabled_ports_mask |= BIT(port->port_id);
continue;
+ }
port->slave.ifphy = devm_of_phy_get(dev, port_np, NULL);
if (IS_ERR(port->slave.ifphy)) {
@@ -1795,12 +1849,10 @@ static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common)
/* get phy/link info */
if (of_phy_is_fixed_link(port_np)) {
ret = of_phy_register_fixed_link(port_np);
- if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "%pOF failed to register fixed-link phy: %d\n",
- port_np, ret);
- return ret;
- }
+ if (ret)
+ return dev_err_probe(dev, ret,
+ "failed to register fixed-link phy %pOF\n",
+ port_np);
port->slave.phy_node = of_node_get(port_np);
} else {
port->slave.phy_node =
@@ -1833,6 +1885,12 @@ static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common)
}
of_node_put(node);
+ /* is there at least one ext.port */
+ if (!(~common->disabled_ports_mask & GENMASK(common->port_num, 1))) {
+ dev_err(dev, "No Ext. port are available\n");
+ return -ENODEV;
+ }
+
return 0;
}
@@ -1843,14 +1901,18 @@ static void am65_cpsw_pcpu_stats_free(void *data)
free_percpu(stats);
}
-static int am65_cpsw_nuss_init_ndev_2g(struct am65_cpsw_common *common)
+static int
+am65_cpsw_nuss_init_port_ndev(struct am65_cpsw_common *common, u32 port_idx)
{
struct am65_cpsw_ndev_priv *ndev_priv;
struct device *dev = common->dev;
struct am65_cpsw_port *port;
int ret;
- port = am65_common_get_port(common, 1);
+ port = &common->ports[port_idx];
+
+ if (port->disabled)
+ return 0;
/* alloc netdev */
port->ndev = devm_alloc_etherdev_mqs(common->dev,
@@ -1879,7 +1941,7 @@ static int am65_cpsw_nuss_init_ndev_2g(struct am65_cpsw_common *common)
port->ndev->features = port->ndev->hw_features |
NETIF_F_HW_VLAN_CTAG_FILTER;
port->ndev->vlan_features |= NETIF_F_SG;
- port->ndev->netdev_ops = &am65_cpsw_nuss_netdev_ops_2g;
+ port->ndev->netdev_ops = &am65_cpsw_nuss_netdev_ops;
port->ndev->ethtool_ops = &am65_cpsw_ethtool_ops_slave;
/* Disable TX checksum offload by default due to HW bug */
@@ -1892,29 +1954,41 @@ static int am65_cpsw_nuss_init_ndev_2g(struct am65_cpsw_common *common)
ret = devm_add_action_or_reset(dev, am65_cpsw_pcpu_stats_free,
ndev_priv->stats);
- if (ret) {
- dev_err(dev, "Failed to add percpu stat free action %d\n", ret);
- return ret;
+ if (ret)
+ dev_err(dev, "failed to add percpu stat free action %d\n", ret);
+
+ if (!common->dma_ndev)
+ common->dma_ndev = port->ndev;
+
+ return ret;
+}
+
+static int am65_cpsw_nuss_init_ndevs(struct am65_cpsw_common *common)
+{
+ int ret;
+ int i;
+
+ for (i = 0; i < common->port_num; i++) {
+ ret = am65_cpsw_nuss_init_port_ndev(common, i);
+ if (ret)
+ return ret;
}
- netif_napi_add(port->ndev, &common->napi_rx,
+ netif_napi_add(common->dma_ndev, &common->napi_rx,
am65_cpsw_nuss_rx_poll, NAPI_POLL_WEIGHT);
return ret;
}
-static int am65_cpsw_nuss_ndev_add_napi_2g(struct am65_cpsw_common *common)
+static int am65_cpsw_nuss_ndev_add_tx_napi(struct am65_cpsw_common *common)
{
struct device *dev = common->dev;
- struct am65_cpsw_port *port;
int i, ret = 0;
- port = am65_common_get_port(common, 1);
-
for (i = 0; i < common->tx_ch_num; i++) {
struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i];
- netif_tx_napi_add(port->ndev, &tx_chn->napi_tx,
+ netif_tx_napi_add(common->dma_ndev, &tx_chn->napi_tx,
am65_cpsw_nuss_tx_poll, NAPI_POLL_WEIGHT);
ret = devm_request_irq(dev, tx_chn->irq,
@@ -1932,16 +2006,27 @@ err:
return ret;
}
-static int am65_cpsw_nuss_ndev_reg_2g(struct am65_cpsw_common *common)
+static void am65_cpsw_nuss_cleanup_ndev(struct am65_cpsw_common *common)
+{
+ struct am65_cpsw_port *port;
+ int i;
+
+ for (i = 0; i < common->port_num; i++) {
+ port = &common->ports[i];
+ if (port->ndev)
+ unregister_netdev(port->ndev);
+ }
+}
+
+static int am65_cpsw_nuss_register_ndevs(struct am65_cpsw_common *common)
{
struct device *dev = common->dev;
struct am65_cpsw_port *port;
- int ret = 0;
+ int ret = 0, i;
- port = am65_common_get_port(common, 1);
- ret = am65_cpsw_nuss_ndev_add_napi_2g(common);
+ ret = am65_cpsw_nuss_ndev_add_tx_napi(common);
if (ret)
- goto err;
+ return ret;
ret = devm_request_irq(dev, common->rx_chns.irq,
am65_cpsw_nuss_rx_irq,
@@ -1949,17 +2034,31 @@ static int am65_cpsw_nuss_ndev_reg_2g(struct am65_cpsw_common *common)
if (ret) {
dev_err(dev, "failure requesting rx irq %u, %d\n",
common->rx_chns.irq, ret);
- goto err;
+ return ret;
+ }
+
+ for (i = 0; i < common->port_num; i++) {
+ port = &common->ports[i];
+
+ if (!port->ndev)
+ continue;
+
+ ret = register_netdev(port->ndev);
+ if (ret) {
+ dev_err(dev, "error registering slave net device%i %d\n",
+ i, ret);
+ goto err_cleanup_ndev;
+ }
}
- ret = register_netdev(port->ndev);
- if (ret)
- dev_err(dev, "error registering slave net device %d\n", ret);
/* can't auto unregister ndev using devm_add_action() due to
* devres release sequence in DD core for DMA
*/
-err:
+ return 0;
+
+err_cleanup_ndev:
+ am65_cpsw_nuss_cleanup_ndev(common);
return ret;
}
@@ -1972,19 +2071,7 @@ int am65_cpsw_nuss_update_tx_chns(struct am65_cpsw_common *common, int num_tx)
if (ret)
return ret;
- return am65_cpsw_nuss_ndev_add_napi_2g(common);
-}
-
-static void am65_cpsw_nuss_cleanup_ndev(struct am65_cpsw_common *common)
-{
- struct am65_cpsw_port *port;
- int i;
-
- for (i = 0; i < common->port_num; i++) {
- port = &common->ports[i];
- if (port->ndev)
- unregister_netdev(port->ndev);
- }
+ return am65_cpsw_nuss_ndev_add_tx_napi(common);
}
struct am65_cpsw_soc_pdata {
@@ -2005,10 +2092,14 @@ static const struct soc_device_attribute am65_cpsw_socinfo[] = {
static const struct am65_cpsw_pdata am65x_sr1_0 = {
.quirks = AM65_CPSW_QUIRK_I2027_NO_TX_CSUM,
+ .ale_dev_id = "am65x-cpsw2g",
+ .fdqring_mode = K3_RINGACC_RING_MODE_MESSAGE,
};
static const struct am65_cpsw_pdata j721e_pdata = {
.quirks = 0,
+ .ale_dev_id = "am65x-cpsw2g",
+ .fdqring_mode = K3_RINGACC_RING_MODE_MESSAGE,
};
static const struct of_device_id am65_cpsw_nuss_of_mtable[] = {
@@ -2068,9 +2159,6 @@ static int am65_cpsw_nuss_probe(struct platform_device *pdev)
return -ENOENT;
of_node_put(node);
- if (common->port_num != 1)
- return -EOPNOTSUPP;
-
common->rx_flow_id_base = -1;
init_completion(&common->tdown_complete);
common->tx_ch_num = 1;
@@ -2089,13 +2177,8 @@ static int am65_cpsw_nuss_probe(struct platform_device *pdev)
return -ENOMEM;
clk = devm_clk_get(dev, "fck");
- if (IS_ERR(clk)) {
- ret = PTR_ERR(clk);
-
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "error getting fck clock %d\n", ret);
- return ret;
- }
+ if (IS_ERR(clk))
+ return dev_err_probe(dev, PTR_ERR(clk), "getting fck clock\n");
common->bus_freq = clk_get_rate(clk);
pm_runtime_enable(dev);
@@ -2145,7 +2228,7 @@ static int am65_cpsw_nuss_probe(struct platform_device *pdev)
ale_params.ale_ageout = AM65_CPSW_ALE_AGEOUT_DEFAULT;
ale_params.ale_ports = common->port_num + 1;
ale_params.ale_regs = common->cpsw_base + AM65_CPSW_NU_ALE_BASE;
- ale_params.dev_id = "am65x-cpsw2g";
+ ale_params.dev_id = common->pdata.ale_dev_id;
ale_params.bus_freq = common->bus_freq;
common->ale = cpsw_ale_create(&ale_params);
@@ -2165,11 +2248,11 @@ static int am65_cpsw_nuss_probe(struct platform_device *pdev)
dev_set_drvdata(dev, common);
- ret = am65_cpsw_nuss_init_ndev_2g(common);
+ ret = am65_cpsw_nuss_init_ndevs(common);
if (ret)
goto err_of_clear;
- ret = am65_cpsw_nuss_ndev_reg_2g(common);
+ ret = am65_cpsw_nuss_register_ndevs(common);
if (ret)
goto err_of_clear;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.