2023-07-08 01:07:09 +08:00
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# Copyright 2022-2023 NXP
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# SPDX-License-Identifier: Apache-2.0
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menuconfig ETH_NXP_S32_GMAC
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bool "NXP S32 GMAC driver"
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default y
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depends on DT_HAS_NXP_S32_GMAC_ENABLED
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2023-09-26 12:31:13 +08:00
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select NOCACHE_MEMORY if ARCH_HAS_NOCACHE_MEMORY_SUPPORT
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2023-07-08 01:07:09 +08:00
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select PINCTRL
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help
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Enable GMAC/EMAC Ethernet driver for NXP S32 SoCs.
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if ETH_NXP_S32_GMAC
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config ETH_NXP_S32_TX_RING_LEN
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int "TX ring length"
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default 4
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range 4 128
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help
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Length of the TX ring. ETH_NXP_S32_TX_RING_BUF_SIZE * ETH_NXP_S32_TX_RING_LEN
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must be a multiple of TX FIFO block size.
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config ETH_NXP_S32_TX_RING_BUF_SIZE
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int "TX ring data buffer size"
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default 1536
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range 64 1536
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help
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Size, in bytes, of the TX data buffer. The size must be big enough to
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store one complete Ethernet frame, and be a multiple of the data bus
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width.
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config ETH_NXP_S32_RX_RING_LEN
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int "RX ring length"
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default 4
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range 4 128
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help
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Length of the RX ring. ETH_NXP_S32_RX_RING_BUF_SIZE * ETH_NXP_S32_RX_RING_LEN
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must be a multiple of RX FIFO block size.
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config ETH_NXP_S32_RX_RING_BUF_SIZE
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int "RX ring data buffer size"
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default 1536
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range 64 1536
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help
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Size, in bytes, of the RX data buffer. The size must be big enough to
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store one complete Ethernet frame, and be a multiple of the data bus
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width.
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config ETH_NXP_S32_CLOCK_CONFIG_IDX
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int
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default 1
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help
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This option specifies the zero-based index of the clock configuration
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used to initialize the GMAC/EMAC clocks.
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config ETH_NXP_S32_RX_THREAD_PRIO
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int "RX thread priority"
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default 2
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help
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RX thread priority. RX thread is a cooperative thread.
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config ETH_NXP_S32_RX_THREAD_STACK_SIZE
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int "RX thread stack size"
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default 1500
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help
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RX thread stack size.
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config ETH_NXP_S32_RX_BUDGET
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int "RX thread budget"
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default 128
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range 1 1024
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help
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The budget parameter places a limit on the amount of work the driver
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may do in the RX thread before yielding the processor, in case there
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is more work to do. This is to prevent the RX thread to starve other
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threads. Each received frame counts as one unit of work.
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config ETH_NXP_S32_LOOPBACK
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bool "MAC loopback"
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help
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MAC operates in loopback mode. The data is looped back through
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internal FIFO on to the internal MII/GMII interface, passing through
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the corresponding transmit PHY interface block.
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This mode requires the MII/GMII Rx clock input signal to function
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properly because the transmit clock is not internally looped back.
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config ETH_NXP_S32_MULTICAST_FILTER
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bool "Multicast destination address filtering"
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help
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Enable support for multicast destination address filtering in the MAC.
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MAC performs imperfect filtering using a 64-bit hash table. The upper
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6-bits CRC of the received multicast address is used as index to the
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content of the hash table. Only multicast with the computed hash set
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in the multicast table will be received and all other multicast is
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dropped by the MAC. If disabled, all multicast is received by the MAC.
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endif # ETH_NXP_S32_GMAC
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