kernel: change ft_wr_timestamp size

The global sequence number is usually 5 times bigger that the local sequence number, so make it bigger to keep nice references. It also change the type of the channel field. In this way, we obtain a 256byte structure which is a nice number for the kfifo (power 2). Make it also aligned to 8Byte (64bit architecture) Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

kernel: change ft_wr_timestamp size
The global sequence number is usually 5 times bigger that the local sequence number, so make it bigger to keep nice references. It also change the type of the channel field. In this way, we obtain a 256byte structure which is a nice number for the kfifo (power 2). Make it also aligned to 8Byte (64bit architecture) Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
816acbfd · Federico Vaga · e1ef0919 · 816acbfd
Commit 816acbfd authored Mar 04, 2015 by Federico Vaga
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fmc-tdc.h kernel/fmc-tdc.h +3 -3

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--- a/kernel/fmc-tdc.h
+++ b/kernel/fmc-tdc.h
@@ -113,14 +113,14 @@ struct ft_hw_timestamp {
 	uint32_t metadata;	/* channel, polarity, etc. */
 } __packed;

-/* White Rabbit timestamp */
+/* White Rabbit timestamp (32Byte is nice for the kfifo) */
 struct ft_wr_timestamp {
 	uint64_t seconds;
 	uint32_t coarse;
 	uint32_t frac;
+	uint32_t channel;
 	uint32_t seq_id;
-	uint32_t gseq_id;
-	unsigned int channel;
+	uint64_t gseq_id;
 };

 struct ft_channel_state {