Mario Huettel 1f6deec3fb can: m_can: Enable TX FIFO Handling for M_CAN IP version >= v3.1.x ... * Added defines for TX Event FIFO Element * Adapted ndo_start_xmit function. For versions >= v3.1.x it uses the TX FIFO to optimize the data throughput. It stores the echo skb at the same index as in the M_CAN's TX FIFO. The frame's message marker is set to this index. This message marker is received in the TX Event FIFO after the message was successfully transmitted. It is used to echo the correct echo skb back to the network stack. * Added m_can_echo_tx_event function. It reads all received message markers in the TX Event FIFO and loops back the corresponding echo skbs. * ISR checks for new TX Event Entry interrupt for version >= 3.1.x. Signed-off-by: Mario Huettel <mario.huettel@gmx.net>		2017-04-26 13:13:46 +02:00
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net/can/m_can	can: m_can: Enable TX FIFO Handling for M_CAN IP version >= v3.1.x	2017-04-26 13:13:46 +02:00