#define QTNF_MAX_MAC 3
+#define HBM_FRAME_META_MAGIC_PATTERN_S 0xAB
+#define HBM_FRAME_META_MAGIC_PATTERN_E 0xBA
+
+struct qtnf_frame_meta_info {
+ u8 magic_s;
+ u8 ifidx;
+ u8 macid;
+ u8 magic_e;
+} __packed;
+
enum qtnf_fw_state {
QTNF_FW_STATE_DETACHED,
QTNF_FW_STATE_BOOT_DONE,
int (*control_tx)(struct qtnf_bus *, struct sk_buff *);
/* data xfer methods */
- int (*data_tx)(struct qtnf_bus *, struct sk_buff *);
+ int (*data_tx)(struct qtnf_bus *bus, struct sk_buff *skb,
+ unsigned int macid, unsigned int vifid);
void (*data_tx_timeout)(struct qtnf_bus *, struct net_device *);
+ void (*data_tx_use_meta_set)(struct qtnf_bus *bus, bool use_meta);
void (*data_rx_start)(struct qtnf_bus *);
void (*data_rx_stop)(struct qtnf_bus *);
};
enum qtnf_fw_state fw_state;
u32 chip;
u32 chiprev;
- const struct qtnf_bus_ops *bus_ops;
+ struct qtnf_bus_ops *bus_ops;
struct qtnf_wmac *mac[QTNF_MAX_MAC];
struct qtnf_qlink_transport trans;
struct qtnf_hw_info hw_info;
bus->bus_ops->stop(bus);
}
-static inline int qtnf_bus_data_tx(struct qtnf_bus *bus, struct sk_buff *skb)
+static inline int qtnf_bus_data_tx(struct qtnf_bus *bus, struct sk_buff *skb,
+ unsigned int macid, unsigned int vifid)
{
- return bus->bus_ops->data_tx(bus, skb);
+ return bus->bus_ops->data_tx(bus, skb, macid, vifid);
}
static inline void
static struct dentry *qtnf_debugfs_dir;
-struct qtnf_frame_meta_info {
- u8 magic_s;
- u8 ifidx;
- u8 macid;
- u8 magic_e;
-} __packed;
-
struct qtnf_wmac *qtnf_core_get_mac(const struct qtnf_bus *bus, u8 macid)
{
struct qtnf_wmac *mac = NULL;
return NETDEV_TX_OK;
}
- return qtnf_bus_data_tx(mac->bus, skb);
+ return qtnf_bus_data_tx(mac->bus, skb, mac->macid, vif->vifid);
}
/* Netdev handler for getting stats.
dev->tx_queue_len = 100;
dev->ethtool_ops = &qtnf_ethtool_ops;
+ if (mac->bus->hw_info.hw_capab & QLINK_HW_CAPAB_HW_BRIDGE)
+ dev->needed_tailroom = sizeof(struct qtnf_frame_meta_info);
+
qdev_vif = netdev_priv(dev);
*((void **)qdev_vif) = vif;
goto error;
}
+ if ((bus->hw_info.hw_capab & QLINK_HW_CAPAB_HW_BRIDGE) &&
+ bus->bus_ops->data_tx_use_meta_set)
+ bus->bus_ops->data_tx_use_meta_set(bus, true);
+
if (bus->hw_info.num_mac > QTNF_MAX_MAC) {
pr_err("no support for number of MACs=%u\n",
bus->hw_info.num_mac);
static inline int qtnf_is_frame_meta_magic_valid(struct qtnf_frame_meta_info *m)
{
- return m->magic_s == 0xAB && m->magic_e == 0xBA;
+ return m->magic_s == HBM_FRAME_META_MAGIC_PATTERN_S &&
+ m->magic_e == HBM_FRAME_META_MAGIC_PATTERN_E;
}
struct net_device *qtnf_classify_skb(struct qtnf_bus *bus, struct sk_buff *skb)
return 1;
}
-static int qtnf_pcie_data_tx(struct qtnf_bus *bus, struct sk_buff *skb)
+static int qtnf_pcie_skb_send(struct qtnf_bus *bus, struct sk_buff *skb)
{
struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus);
struct qtnf_pcie_bus_priv *priv = &ps->base;
return NETDEV_TX_OK;
}
+static int qtnf_pcie_data_tx(struct qtnf_bus *bus, struct sk_buff *skb,
+ unsigned int macid, unsigned int vifid)
+{
+ return qtnf_pcie_skb_send(bus, skb);
+}
+
+static int qtnf_pcie_data_tx_meta(struct qtnf_bus *bus, struct sk_buff *skb,
+ unsigned int macid, unsigned int vifid)
+{
+ struct qtnf_frame_meta_info *meta;
+ int tail_need = sizeof(*meta) - skb_tailroom(skb);
+ int ret;
+
+ if (tail_need > 0 && pskb_expand_head(skb, 0, tail_need, GFP_ATOMIC)) {
+ skb->dev->stats.tx_dropped++;
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+
+ meta = skb_put(skb, sizeof(*meta));
+ meta->magic_s = HBM_FRAME_META_MAGIC_PATTERN_S;
+ meta->magic_e = HBM_FRAME_META_MAGIC_PATTERN_E;
+ meta->macid = macid;
+ meta->ifidx = vifid;
+
+ ret = qtnf_pcie_skb_send(bus, skb);
+ if (unlikely(ret == NETDEV_TX_BUSY))
+ __skb_trim(skb, skb->len - sizeof(*meta));
+
+ return ret;
+}
+
static irqreturn_t qtnf_pcie_pearl_interrupt(int irq, void *data)
{
struct qtnf_bus *bus = (struct qtnf_bus *)data;
qtnf_disable_hdp_irqs(ps);
}
-static const struct qtnf_bus_ops qtnf_pcie_pearl_bus_ops = {
+static void qtnf_pearl_tx_use_meta_info_set(struct qtnf_bus *bus, bool use_meta)
+{
+ if (use_meta)
+ bus->bus_ops->data_tx = qtnf_pcie_data_tx_meta;
+ else
+ bus->bus_ops->data_tx = qtnf_pcie_data_tx;
+}
+
+static struct qtnf_bus_ops qtnf_pcie_pearl_bus_ops = {
/* control path methods */
.control_tx = qtnf_pcie_control_tx,
/* data path methods */
.data_tx = qtnf_pcie_data_tx,
.data_tx_timeout = qtnf_pcie_data_tx_timeout,
+ .data_tx_use_meta_set = qtnf_pearl_tx_use_meta_info_set,
.data_rx_start = qtnf_pcie_data_rx_start,
.data_rx_stop = qtnf_pcie_data_rx_stop,
};
memcpy(pdata, pblk, len);
hdr->crc = cpu_to_le32(~crc32(0, pdata, len));
- ret = qtnf_pcie_data_tx(bus, skb);
+ ret = qtnf_pcie_skb_send(bus, skb);
return (ret == NETDEV_TX_OK) ? len : 0;
}
return 1;
}
-static int qtnf_pcie_data_tx(struct qtnf_bus *bus, struct sk_buff *skb)
+static int qtnf_pcie_data_tx(struct qtnf_bus *bus, struct sk_buff *skb,
+ unsigned int macid, unsigned int vifid)
{
struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
struct qtnf_pcie_bus_priv *priv = &ts->base;
napi_disable(&bus->mux_napi);
}
-static const struct qtnf_bus_ops qtnf_pcie_topaz_bus_ops = {
+static struct qtnf_bus_ops qtnf_pcie_topaz_bus_ops = {
/* control path methods */
.control_tx = qtnf_pcie_control_tx,