6a91b846af
Add dmaengine framework to communicate with the xilinx DMAengine driver(AXIDMA). Axi ethernet driver uses separate channels for transmit and receive. Add support for these channels to handle TX and RX with skb and appropriate callbacks. Also add axi ethernet core interrupt for dmaengine framework support. The dmaengine framework was extended for metadata API support. However it still needs further enhancements to make it well suited for ethernet usecases. The ethernet features i.e ethtool set/get of DMA IP properties, ndo_poll_controller,(mentioned in TODO) are not supported and it requires follow-up discussions. dmaengine support has a dependency on xilinx_dma as it uses xilinx_vdma_channel_set_config() API to reset the DMA IP which internally reset MAC prior to accessing MDIO. Benchmark with netperf: xilinx-zcu102-20232:~$ netperf -H 192.168.10.20 -t TCP_STREAM MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.10.20 () port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 131072 16384 16384 10.02 886.69 xilinx-zcu102-20232:~$ netperf -H 192.168.10.20 -t UDP_STREAM MIGRATED UDP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.10.20 () port 0 AF_INET Socket Message Elapsed Messages Size Size Time Okay Errors Throughput bytes bytes secs # # 10^6bits/sec 212992 65507 10.00 15851 0 830.66 212992 10.00 15851 830.66 Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com> Link: https://lore.kernel.org/r/1700074613-1977070-4-git-send-email-radhey.shyam.pandey@amd.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
44 lines
1.2 KiB
Plaintext
44 lines
1.2 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Xilinx device configuration
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#
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config NET_VENDOR_XILINX
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bool "Xilinx devices"
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default y
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help
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If you have a network (Ethernet) card belonging to this class, say Y.
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Note that the answer to this question doesn't directly affect the
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kernel: saying N will just cause the configurator to skip all
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the questions about Xilinx devices. If you say Y, you will be asked
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for your specific card in the following questions.
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if NET_VENDOR_XILINX
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config XILINX_EMACLITE
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tristate "Xilinx 10/100 Ethernet Lite support"
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depends on HAS_IOMEM
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select PHYLIB
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help
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This driver supports the 10/100 Ethernet Lite from Xilinx.
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config XILINX_AXI_EMAC
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tristate "Xilinx 10/100/1000 AXI Ethernet support"
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depends on HAS_IOMEM
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depends on XILINX_DMA
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select PHYLINK
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help
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This driver supports the 10/100/1000 Ethernet from Xilinx for the
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AXI bus interface used in Xilinx Virtex FPGAs and Soc's.
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config XILINX_LL_TEMAC
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tristate "Xilinx LL TEMAC (LocalLink Tri-mode Ethernet MAC) driver"
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depends on HAS_IOMEM
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select PHYLIB
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help
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This driver supports the Xilinx 10/100/1000 LocalLink TEMAC
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core used in Xilinx Spartan and Virtex FPGAs
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endif # NET_VENDOR_XILINX
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