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path: root/drivers/net/can/m_can/m_can.h
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Diffstat (limited to 'drivers/net/can/m_can/m_can.h')
-rw-r--r--drivers/net/can/m_can/m_can.h35
1 files changed, 33 insertions, 2 deletions
diff --git a/drivers/net/can/m_can/m_can.h b/drivers/net/can/m_can/m_can.h
index 520e14277d..3a9edc2925 100644
--- a/drivers/net/can/m_can/m_can.h
+++ b/drivers/net/can/m_can/m_can.h
@@ -70,6 +70,13 @@ struct m_can_ops {
int (*init)(struct m_can_classdev *cdev);
};
+struct m_can_tx_op {
+ struct m_can_classdev *cdev;
+ struct work_struct work;
+ struct sk_buff *skb;
+ bool submit;
+};
+
struct m_can_classdev {
struct can_priv can;
struct can_rx_offload offload;
@@ -80,18 +87,42 @@ struct m_can_classdev {
struct clk *cclk;
struct workqueue_struct *tx_wq;
- struct work_struct tx_work;
- struct sk_buff *tx_skb;
struct phy *transceiver;
+ ktime_t irq_timer_wait;
+
struct m_can_ops *ops;
int version;
u32 irqstatus;
int pm_clock_support;
+ int pm_wake_source;
int is_peripheral;
+ // Cached M_CAN_IE register content
+ u32 active_interrupts;
+ u32 rx_max_coalesced_frames_irq;
+ u32 rx_coalesce_usecs_irq;
+ u32 tx_max_coalesced_frames;
+ u32 tx_max_coalesced_frames_irq;
+ u32 tx_coalesce_usecs_irq;
+
+ // Store this internally to avoid fetch delays on peripheral chips
+ u32 tx_fifo_putidx;
+
+ /* Protects shared state between start_xmit and m_can_isr */
+ spinlock_t tx_handling_spinlock;
+ int tx_fifo_in_flight;
+
+ struct m_can_tx_op *tx_ops;
+ int tx_fifo_size;
+ int next_tx_op;
+
+ int nr_txs_without_submit;
+ /* bitfield of fifo elements that will be submitted together */
+ u32 tx_peripheral_submit;
+
struct mram_cfg mcfg[MRAM_CFG_NUM];
struct hrtimer hrtimer;