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ebba3bf38b
This patch adds a driver for a Synopsys DesignWare Ethernet MAC. The driver uses interrupts to handle received frames, but it uses a spinloop when transmitting to wait for the transmit descriptor to become available. Transmission is coordinated by a fiber, so this should not result in the system execution being blocked. Only a single descriptor is allocated for each of the transmit and receive directions to save memory and simplify the code. Another simplification is that none of the offload capabilities of the Ethernet device are used. The driver currently only supports a single instance of the Ethernet MAC, which is consistent with the limitation in the network stack that only a single network device is supported. Change-Id: I013b3d439a76e8ff91a775516f7035841b040870 Signed-off-by: Michael LeMay <michael.lemay@intel.com>
126 lines
2.9 KiB
Plaintext
126 lines
2.9 KiB
Plaintext
# Kconfig - Synopsys DesignWare Ethernet driver configuration options
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#
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# Copyright (c) 2015 Intel Corporation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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menuconfig ETH_DW
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bool
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prompt "Synopsys DesignWare Ethernet driver"
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depends on ETHERNET
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default n
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help
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Enable Synopsys DesignWare Ethernet driver.
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if ETH_DW
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config ETH_DW_SHARED_IRQ
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bool
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default n
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config ETH_DW_VENDOR_ID
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hex "PCI Vendor ID"
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depends on PCI
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default 0x8086
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config ETH_DW_DEVICE_ID
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hex "PCI Device ID"
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depends on PCI
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default 0x937
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config ETH_DW_CLASS
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hex "PCI class"
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depends on PCI
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default 0x02
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config ETH_DW_0
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bool "Synopsys DesignWare Ethernet port 0"
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default n
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help
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Include port 0 driver
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config ETH_DW_0_NAME
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string "Driver name"
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depends on ETH_DW_0
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default "ETH_0"
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config ETH_DW_0_BASE_ADDR
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hex "MAC base address"
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depends on ETH_DW_0
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default 0x00000000
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config ETH_DW_0_BUS
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int "Port 0 PCI bus number"
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depends on ETH_DW_0 && PCI
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default 0
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config ETH_DW_0_DEV
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int "Port 0 PCI device number"
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depends on ETH_DW_0 && PCI
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default 20
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config ETH_DW_0_FUNCTION
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int "Port 0 PCI function number"
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depends on ETH_DW_0 && PCI
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default 6
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config ETH_DW_0_BAR
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int "Port 0 PCI BAR slot"
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depends on ETH_DW_0 && PCI
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default 0
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choice
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prompt "Port 0 Interrupts via"
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default ETH_DW_0_IRQ_SHARED
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depends on ETH_DW_0
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config ETH_DW_0_IRQ_DIRECT
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bool "Direct Hardware Interrupt"
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help
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When interrupts fire, the driver's ISR function is being called directly.
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config ETH_DW_0_IRQ_SHARED
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bool "Shared IRQ"
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depends on SHARED_IRQ
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select ETH_DW_SHARED_IRQ
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help
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When interrupts fire, the shared IRQ driver is notified. Then the shared IRQ
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driver dispatches the interrupt to other drivers.
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endchoice
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config ETH_DW_0_IRQ_SHARED_NAME
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string "Device name for Shared IRQ"
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depends on ETH_DW_0 && ETH_DW_0_IRQ_SHARED
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help
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Specify the device name for the shared IRQ driver. It is used to register
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this driver with the shared IRQ driver, so interrupts can be dispatched
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correctly.
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config ETH_DW_0_IRQ
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int "Controller interrupt number"
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depends on ETH_DW_0 && ETH_DW_0_IRQ_DIRECT
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default 0
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help
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IRQ number for the controller
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config ETH_DW_0_PRI
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int "Controller interrupt priority"
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depends on ETH_DW_0 && ETH_DW_0_IRQ_DIRECT
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default 0
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help
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IRQ priority
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endif # ETH_DW
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