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linux/drivers/net/ethernet/stmicro/stmmac
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Giuseppe Cavallaro e3ad57c967 stmmac: review RX/TX ring management 
This patch is to rework the ring management now optimized.
The indexes into the ring buffer are always incremented, and
the entry is accessed via doing a modulo to find the "real"
position in the ring.
It is inefficient, modulo is an expensive operation.

The formula [(entry + 1) & (size - 1)] is now adopted on
a ring that is power-of-2 in size.
Then, the number of elements cannot be set by command line but
it is fixed.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2016-03-02 14:21:31 -05:00
..
Kconfig stmmac: add ipq806x glue layer 2015-05-30 17:04:36 -07:00
Makefile stmmac: add ipq806x glue layer 2015-05-30 17:04:36 -07:00
chain_mode.c stmmac: review RX/TX ring management 2016-03-02 14:21:31 -05:00
common.h stmmac: review RX/TX ring management 2016-03-02 14:21:31 -05:00
descs.h stmmac: change descriptor layout 2016-03-02 14:21:30 -05:00
descs_com.h stmmac: change descriptor layout 2016-03-02 14:21:30 -05:00
dwmac-generic.c stmmac: remove setup/free glue callbacks 2015-07-29 00:13:25 -07:00
dwmac-ipq806x.c stmmac: ipq806x: Return error values instead of pointers 2015-12-03 15:24:42 -05:00
dwmac-lpc18xx.c stmmac: add proper probe function to dwmac-lpc18xx 2015-07-20 20:45:57 -07:00
dwmac-meson.c stmmac: add proper probe function to dwmac-meson 2015-07-20 20:45:57 -07:00
dwmac-rk.c net: stmmac: fix double-initialization of phy_iface 2015-11-05 14:09:26 -05:00
dwmac-socfpga.c stmmac: socfpga: Provide dt node to config ptp clk source. 2015-12-15 23:20:56 -05:00
dwmac-sti.c stmmac: dwmac-sti: fix st,tx-retime-src check 2015-11-30 14:52:51 -05:00
dwmac-sunxi.c stmmac: dwmac-sunxi: Call exit cleanup function in probe error path 2015-12-14 16:11:59 -05:00
dwmac100.h stmmac: share reset function between dwmac100 and dwmac1000 2016-03-02 14:21:30 -05:00
dwmac100_core.c net: stmmac: Support devicetree configs for mcast and ucast filter entries 2014-07-31 14:13:29 -07:00
dwmac100_dma.c stmmac: rework DMA bus setting and introduce new platform AXI structure 2016-03-02 14:21:30 -05:00
dwmac1000.h stmmac: rework DMA bus setting and introduce new platform AXI structure 2016-03-02 14:21:30 -05:00
dwmac1000_core.c stmmac: support Reg_9 to get HW level information 2015-12-01 16:06:14 -05:00
dwmac1000_dma.c stmmac: rework DMA bus setting and introduce new platform AXI structure 2016-03-02 14:21:30 -05:00
dwmac_dma.h stmmac: rework DMA bus setting and introduce new platform AXI structure 2016-03-02 14:21:30 -05:00
dwmac_lib.c stmmac: share reset function between dwmac100 and dwmac1000 2016-03-02 14:21:30 -05:00
enh_desc.c stmmac: change descriptor layout 2016-03-02 14:21:30 -05:00
mmc.h stmmac: fix tipo on mmc crc error 2014-08-29 19:54:36 -07:00
mmc_core.c stmmac: Trivial: fix typo in constant name 2015-06-29 12:45:04 -07:00
norm_desc.c stmmac: change descriptor layout 2016-03-02 14:21:30 -05:00
ring_mode.c stmmac: review RX/TX ring management 2016-03-02 14:21:31 -05:00
stmmac.h stmmac: review RX/TX ring management 2016-03-02 14:21:31 -05:00
stmmac_ethtool.c stmmac: support Reg_9 to get HW level information 2015-12-01 16:06:14 -05:00
stmmac_hwtstamp.c stmmac: Fix calculations for ptp counters when clock input = 50Mhz. 2015-12-15 23:20:56 -05:00
stmmac_main.c stmmac: review RX/TX ring management 2016-03-02 14:21:31 -05:00
stmmac_mdio.c stmmac: Don't exit mdio registration when mdio subnode is not found in the DTS 2016-01-10 18:02:33 -05:00
stmmac_pci.c stmmac: rework DMA bus setting and introduce new platform AXI structure 2016-03-02 14:21:30 -05:00
stmmac_platform.c stmmac: rework DMA bus setting and introduce new platform AXI structure 2016-03-02 14:21:30 -05:00
stmmac_platform.h stmmac: move stmmac_pltfr_probe into dwmac-generic 2015-07-29 00:13:24 -07:00
stmmac_ptp.c ptp: stmmac: use helpers for converting ns to timespec. 2015-03-31 17:19:19 -04:00
stmmac_ptp.h stmmac: ptp: fix the reference clock 2014-08-29 19:54:36 -07:00