Dmitri Epshtein 06708f8152 net: mvneta: set real interrupt per packet for tx_done ... Commit aebea2ba0f ("net: mvneta: fix Tx interrupt delay") intended to set coalescing threshold to a value guaranteeing interrupt generation per each sent packet, so that buffers can be released with no delay. In fact setting threshold to '1' was wrong, because it causes interrupt every two packets. According to the documentation a reason behind it is following - interrupt occurs once sent buffers counter reaches a value, which is higher than one specified in MVNETA_TXQ_SIZE_REG(q). This behavior was confirmed during tests. Also when testing the SoC working as a NAS device, better performance was observed with int-per-packet, as it strongly depends on the fact that all transmitted packets are released immediately. This commit enables NETA controller work in interrupt per sent packet mode by setting coalescing threshold to 0. Signed-off-by: Dmitri Epshtein <dima@marvell.com> Signed-off-by: Marcin Wojtas <mw@semihalf.com> Cc: <stable@vger.kernel.org> # v3.10+ Fixes aebea2ba0f ("net: mvneta: fix Tx interrupt delay") Acked-by: Willy Tarreau <w@1wt.eu> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-07-08 23:44:44 -04:00
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Kconfig	net: mvneta: bm: fix dependencies again	2016-05-12 16:56:30 -04:00
Makefile	net: mvneta: bm: add support for hardware buffer management	2016-03-14 12:19:46 -04:00
mv643xx_eth.c	net: mv643xx_eth: fix packet corruption with TSO and tiny unaligned packets.	2016-01-28 16:08:01 -08:00
mvmdio.c	mdio: Move allocation of interrupts into core	2016-01-07 14:31:26 -05:00
mvneta_bm.c	net: mvneta: Fix lacking spinlock initialization	2016-05-25 12:35:08 -07:00
mvneta_bm.h	net: mvneta: Use the new hwbm framework	2016-03-14 12:19:47 -04:00
mvneta.c	net: mvneta: set real interrupt per packet for tx_done	2016-07-08 23:44:44 -04:00
mvpp2.c	net: mvpp2: use cache_line_size() to get cacheline size	2016-04-01 14:36:47 -04:00
pxa168_eth.c	net: pxa168_eth: Use dma_wmb/rmb where appropriate	2016-05-16 13:39:49 -04:00
skge.c	skge: Unmask interrupts in case of spurious interrupts	2014-12-05 21:33:19 -08:00
skge.h
sky2.c	treewide: replace dev->trans_start update with helper	2016-05-04 14:16:49 -04:00
sky2.h	sky2: Receive Overflows not counted	2013-03-29 14:53:19 -04:00