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There are some PowerPC SoCs that do odd things with the MAL handling. In order to accommodate them, we need to introduce a feature mechanism that is similar to the existing emac_has_feature function. This adds a feature variable to the mal_instance structure, and adds a mal_has_feature function. Two features are defined and are guarded by Kconfig options that are selected by the affected platforms. MAL_FTR_CLEAR_ICINSTAT is used for platforms that need to clear the interrupt bits in the ICINTSTAT SDR for txeob/rxeob. This is common on MAL implementations that have interrupt coalescing. MAL_FTR_COMMON_ERR_INT is used for platforms that have SERR, TXDE, and RXDE OR'd into a single interrupt bit. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
77 lines
1.5 KiB
Plaintext
77 lines
1.5 KiB
Plaintext
config IBM_NEW_EMAC
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tristate "IBM EMAC Ethernet support"
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depends on PPC_DCR && PPC_MERGE
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select CRC32
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help
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This driver supports the IBM EMAC family of Ethernet controllers
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typically found on 4xx embedded PowerPC chips, but also on the
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Axon southbridge for Cell.
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config IBM_NEW_EMAC_RXB
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int "Number of receive buffers"
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depends on IBM_NEW_EMAC
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default "128"
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config IBM_NEW_EMAC_TXB
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int "Number of transmit buffers"
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depends on IBM_NEW_EMAC
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default "64"
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config IBM_NEW_EMAC_POLL_WEIGHT
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int "MAL NAPI polling weight"
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depends on IBM_NEW_EMAC
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default "32"
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config IBM_NEW_EMAC_RX_COPY_THRESHOLD
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int "RX skb copy threshold (bytes)"
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depends on IBM_NEW_EMAC
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default "256"
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config IBM_NEW_EMAC_RX_SKB_HEADROOM
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int "Additional RX skb headroom (bytes)"
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depends on IBM_NEW_EMAC
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default "0"
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help
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Additional receive skb headroom. Note, that driver
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will always reserve at least 2 bytes to make IP header
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aligned, so usually there is no need to add any additional
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headroom.
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If unsure, set to 0.
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config IBM_NEW_EMAC_DEBUG
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bool "Debugging"
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depends on IBM_NEW_EMAC
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default n
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# The options below has to be select'ed by the respective
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# processor types or platforms
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config IBM_NEW_EMAC_ZMII
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bool
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default n
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config IBM_NEW_EMAC_RGMII
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bool
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default n
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config IBM_NEW_EMAC_TAH
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bool
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default n
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config IBM_NEW_EMAC_EMAC4
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bool
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default n
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config IBM_NEW_EMAC_NO_FLOW_CTRL
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bool
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default n
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config IBM_NEW_EMAC_MAL_CLR_ICINTSTAT
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bool
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default n
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config IBM_NEW_EMAC_MAL_COMMON_ERR
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bool
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default n
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