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linux/drivers/net/ethernet/stmicro/stmmac
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Mohammad Athari Bin Ismail 676b7ec67d stmmac: intel: Enable HW descriptor prefetch by default 
Enable HW descriptor prefetch by default by setting plat->dma_cfg->dche =
true in intel_mgbe_common_data(). Need to be noted that this capability
only be supported in DWMAC core version 5.20 onwards. In stmmac, there is
a checking to check the core version. If the core version is below 5.20,
this capability wouldn`t be configured.

Below is the iperf result comparison between HW descriptor prefetch
disabled(DCHE=0b) and enabled(DCHE=1b). Tested on Intel Elkhartlake
platform with DWMAC Core 5.20. Observed line rate performance
improvement with HW descriptor prefetch enabled.

DCHE = 0b
[  5] local 169.254.1.162 port 42123 connected to 169.254.244.142 port 5201
[ ID] Interval           Transfer     Bitrate         Total Datagrams
[  5]   0.00-1.00   sec  96.7 MBytes   811 Mbits/sec  70050
[  5]   1.00-2.00   sec  96.5 MBytes   809 Mbits/sec  69850
[  5]   2.00-3.00   sec  96.3 MBytes   808 Mbits/sec  69720
[  5]   3.00-4.00   sec  95.9 MBytes   804 Mbits/sec  69450
[  5]   4.00-5.00   sec  96.0 MBytes   806 Mbits/sec  69530
[  5]   5.00-6.00   sec  96.8 MBytes   812 Mbits/sec  70080
[  5]   6.00-7.00   sec  96.9 MBytes   813 Mbits/sec  70140
[  5]   7.00-8.00   sec  96.8 MBytes   812 Mbits/sec  70080
[  5]   8.00-9.00   sec  97.0 MBytes   814 Mbits/sec  70230
[  5]   9.00-10.00  sec  96.9 MBytes   813 Mbits/sec  70170
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Jitter    Lost/Total Datagrams
[  5]   0.00-10.00  sec   966 MBytes   810 Mbits/sec  0.000 ms  0/699300 (0%)  sender
[  5]   0.00-10.00  sec   966 MBytes   810 Mbits/sec  0.011 ms  0/699265 (0%)  receiver

DCHE = 1b
[  5] local 169.254.1.162 port 49740 connected to 169.254.244.142 port 5201
[ ID] Interval           Transfer     Bitrate         Total Datagrams
[  5]   0.00-1.00   sec  97.9 MBytes   821 Mbits/sec  70880
[  5]   1.00-2.00   sec  98.1 MBytes   823 Mbits/sec  71060
[  5]   2.00-3.00   sec  98.2 MBytes   824 Mbits/sec  71140
[  5]   3.00-4.00   sec  98.2 MBytes   824 Mbits/sec  71090
[  5]   4.00-5.00   sec  98.1 MBytes   823 Mbits/sec  71050
[  5]   5.00-6.00   sec  98.1 MBytes   823 Mbits/sec  71040
[  5]   6.00-7.00   sec  98.1 MBytes   823 Mbits/sec  71050
[  5]   7.00-8.00   sec  98.2 MBytes   824 Mbits/sec  71140
[  5]   8.00-9.00   sec  98.2 MBytes   824 Mbits/sec  71120
[  5]   9.00-10.00  sec  98.3 MBytes   824 Mbits/sec  71150
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Jitter    Lost/Total Datagrams
[  5]   0.00-10.00  sec   981 MBytes   823 Mbits/sec  0.000 ms  0/710720 (0%)  sender
[  5]   0.00-10.00  sec   981 MBytes   823 Mbits/sec  0.041 ms  0/710650 (0%) receiver

Signed-off-by: Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-22 15:02:40 -07:00
..
altr_tse_pcs.c
…
altr_tse_pcs.h
…
chain_mode.c
net: stmmac: Add support to Ethtool get/set ring parameters
2020-09-16 15:22:52 -07:00
common.h
net: stmmac: Add HW descriptor prefetch setting for DWMAC Core 5.20 onwards
2021-04-22 15:02:40 -07:00
descs_com.h
…
descs.h
net: stmmac: Initial support for TBS
2020-01-13 18:31:48 -08:00
dwmac4_core.c
net: stmmac: support FPE link partner hand-shaking procedure
2021-03-24 17:58:13 -07:00
dwmac4_descs.c
net: stmmac: fix wrongly set buffer2 valid when sph unsupport
2021-02-26 15:17:11 -08:00
dwmac4_descs.h
net: stmmac: gmac4+: Add TBS support
2020-01-13 18:31:48 -08:00
dwmac4_dma.c
net: stmmac: Add HW descriptor prefetch setting for DWMAC Core 5.20 onwards
2021-04-22 15:02:40 -07:00
dwmac4_dma.h
net: stmmac: Add HW descriptor prefetch setting for DWMAC Core 5.20 onwards
2021-04-22 15:02:40 -07:00
dwmac4_lib.c
net: stmmac: use interrupt mode INTM=1 for multi-MSI
2021-03-25 17:37:30 -07:00
dwmac4.h
net: stmmac: Add hardware supported cross-timestamp
2021-03-24 15:12:36 -07:00
dwmac5.c
net: stmmac: enable MTL ECC Error Address Status Over-ride by default
2021-03-31 15:09:40 -07:00
dwmac5.h
net: stmmac: enable MTL ECC Error Address Status Over-ride by default
2021-03-31 15:09:40 -07:00
dwmac100_core.c
…
dwmac100_dma.c
net: stmmac: Fix descriptors address being in > 32 bits address space
2019-07-09 12:20:08 -07:00
dwmac100.h
…
dwmac1000_core.c
net: stmmac: dwmac1000: provide multicast filter fallback
2020-08-12 13:12:52 -07:00
dwmac1000_dma.c
net: stmmac: add per-queue TX & RX coalesce ethtool support
2021-03-17 14:36:24 -07:00
dwmac1000.h
…
dwmac_dma.h
net: stmmac: introduce DMA interrupt status masking per traffic direction
2021-03-25 17:37:30 -07:00
dwmac_lib.c
net: stmmac: introduce DMA interrupt status masking per traffic direction
2021-03-25 17:37:30 -07:00
dwmac-anarion.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-dwc-qos-eth.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-generic.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-imx.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-intel-plat.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-intel.c
stmmac: intel: Enable HW descriptor prefetch by default
2021-04-22 15:02:40 -07:00
dwmac-intel.h
stmmac: intel: Enable SERDES PHY rx clk for PSE
2021-04-07 14:24:23 -07:00
dwmac-ipq806x.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-lpc18xx.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-mediatek.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-meson8b.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-meson.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-oxnas.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-qcom-ethqos.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-rk.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-socfpga.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-sti.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-stm32.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-sun8i.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-sunxi.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwmac-visconti.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
dwxgmac2_core.c
net: stmmac: xgmac: Fix VLAN register handling
2020-04-02 07:04:45 -07:00
dwxgmac2_descs.c
net: stmmac: fix wrongly set buffer2 valid when sph unsupport
2021-02-26 15:17:11 -08:00
dwxgmac2_dma.c
net: stmmac: introduce DMA interrupt status masking per traffic direction
2021-03-25 17:37:30 -07:00
dwxgmac2.h
net: stmmac: introduce DMA interrupt status masking per traffic direction
2021-03-25 17:37:30 -07:00
dwxlgmac2.h
net: stmmac: Add support for Enterprise MAC version
2020-03-17 21:37:25 -07:00
enh_desc.c
net: stmmac: fix dma physical address of descriptor when display ring
2021-02-26 15:17:11 -08:00
hwif.c
net: stmmac: Add support for Enterprise MAC version
2020-03-17 21:37:25 -07:00
hwif.h
net: stmmac: Add support for external trigger timestamping
2021-04-14 12:57:45 -07:00
Kconfig
net: stmmac: Add Toshiba Visconti SoCs glue driver
2021-02-15 14:59:35 -08:00
Makefile
net: stmmac: Add initial XDP support
2021-04-03 14:13:39 -07:00
mmc_core.c
net: stmmac: mmc: Add Frame Preemption counters on GMAC5+ cores
2019-12-18 12:17:11 -08:00
mmc.h
net: stmmac: xgmac: Implement MMC counters
2019-08-08 22:20:18 -07:00
norm_desc.c
net: stmmac: fix dma physical address of descriptor when display ring
2021-02-26 15:17:11 -08:00
ring_mode.c
net: stmmac: Add support to Ethtool get/set ring parameters
2020-09-16 15:22:52 -07:00
stmmac_ethtool.c
net: stmmac: Add EST errors into ethtool statistic
2021-03-18 14:34:07 -07:00
stmmac_hwtstamp.c
net: stmmac: Add support for external trigger timestamping
2021-04-14 12:57:45 -07:00
stmmac_main.c
net: stmmac: Add HW descriptor prefetch setting for DWMAC Core 5.20 onwards
2021-04-22 15:02:40 -07:00
stmmac_mdio.c
net: stmmac: add clocks management for gmac driver
2021-03-15 14:46:21 -07:00
stmmac_pci.c
net: stmmac: remove unnecessary pci_enable_msi() call
2021-04-01 15:49:23 -07:00
stmmac_pcs.h
…
stmmac_platform.c
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
stmmac_platform.h
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
stmmac_ptp.c
net: stmmac: Add support for external trigger timestamping
2021-04-14 12:57:45 -07:00
stmmac_ptp.h
net: stmmac: Add support for external trigger timestamping
2021-04-14 12:57:45 -07:00
stmmac_selftests.c
net: stmmac: Add support to Ethtool get/set ring parameters
2020-09-16 15:22:52 -07:00
stmmac_tc.c
net: stmmac: Fix kernel panic due to NULL pointer dereference of fpe_cfg
2021-03-26 15:21:51 -07:00
stmmac_xdp.c
net: stmmac: Add TX via XDP zero-copy socket
2021-04-13 15:06:51 -07:00
stmmac_xdp.h
net: stmmac: Enable RX via AF_XDP zero-copy
2021-04-13 15:06:51 -07:00
stmmac.h
net: stmmac: Add support for external trigger timestamping
2021-04-14 12:57:45 -07:00