20c384f1ea
Currently, CONFIG_VHOST depends on CONFIG_VIRTUALIZATION. But vhost is not necessarily for VM since it's a generic userspace and kernel communication protocol. Such dependency may prevent archs without virtualization support from using vhost. To solve this, a dedicated vhost menu is created under drivers so CONIFG_VHOST can be decoupled out of CONFIG_VIRTUALIZATION. While at it, also squash Kconfig.vringh into vhost Kconfig file. This avoids the trick of conditional inclusion from VOP or CAIF. Then it will be easier to introduce new vringh users and common dependency for both vringh and vhost. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20200326140125.19794-2-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
62 lines
1.7 KiB
Plaintext
62 lines
1.7 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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# CAIF physical drivers
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#
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menuconfig CAIF_DRIVERS
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bool "CAIF transport drivers"
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depends on CAIF
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help
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Enable this to see CAIF physical drivers.
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if CAIF_DRIVERS
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config CAIF_TTY
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tristate "CAIF TTY transport driver"
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depends on CAIF && TTY
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default n
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---help---
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The CAIF TTY transport driver is a Line Discipline (ldisc)
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identified as N_CAIF. When this ldisc is opened from user space
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it will redirect the TTY's traffic into the CAIF stack.
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config CAIF_SPI_SLAVE
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tristate "CAIF SPI transport driver for slave interface"
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depends on CAIF && HAS_DMA
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default n
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---help---
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The CAIF Link layer SPI Protocol driver for Slave SPI interface.
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This driver implements a platform driver to accommodate for a
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platform specific SPI device. A sample CAIF SPI Platform device is
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provided in <file:Documentation/networking/caif/spi_porting.txt>.
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config CAIF_SPI_SYNC
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bool "Next command and length in start of frame"
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depends on CAIF_SPI_SLAVE
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default n
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---help---
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Putting the next command and length in the start of the frame can
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help to synchronize to the next transfer in case of over or under-runs.
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This option also needs to be enabled on the modem.
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config CAIF_HSI
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tristate "CAIF HSI transport driver"
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depends on CAIF
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default n
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---help---
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The CAIF low level driver for CAIF over HSI.
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Be aware that if you enable this then you also need to
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enable a low-level HSI driver.
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config CAIF_VIRTIO
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tristate "CAIF virtio transport driver"
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depends on CAIF && HAS_DMA
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select VHOST_RING
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select VIRTIO
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select GENERIC_ALLOCATOR
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default n
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---help---
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The CAIF driver for CAIF over Virtio.
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endif # CAIF_DRIVERS
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