Hey Rusty,
In this version:
- Assume only one inbuf; no input buffering for ports
- Remove the START/END delimiters for outgoing buffers
- Remove the header that was sent along with each buffer
- Remove unused buffers in the vqs at port remove time
- Send a guest port open message to the host when a console port is
attached
- Remove cached buffers when ports are closed / disconnected
- Send only one buffer in send_buf
As usual, this series is passed through the testsuite that tests for
the functionality given here.
Amit Shah (25):
hvc_console: Remove __devinit annotation from hvc_alloc
virtio: console: We support only one device at a time
virtio: console: encapsulate buffer information in a struct
virtio: console: ensure add_inbuf can work for multiple ports as well
virtio: console: introduce a get_inbuf helper to fetch bufs from
in_vq
virtio: console: don't assume a single console port.
virtio: console: struct ports for multiple ports per device.
virtio: console: ensure console size is updated on hvc open
virtio: console: Separate out console-specific data into a separate
struct
virtio: console: Separate out console init into a new function
virtio: console: Separate out find_vqs operation into a different
function
virtio: console: Introduce function to hand off data from host to
readers
virtio: console: Introduce a send_buf function for a common path for
sending data to host
virtio: console: Add a new MULTIPORT feature, support for generic
ports
virtio: console: Prepare for writing to / reading from userspace
buffers
virtio: console: Associate each port with a char device
virtio: console: Add file operations to ports for
open/read/write/poll
virtio: console: Ensure only one process can have a port open at a
time
virtio: console: Register with sysfs and create a 'name' attribute
for ports
virtio: console: Add throttling support to prevent flooding ports
virtio: console: Remove cached data on port close
virtio: console: Handle port hot-plug
virtio: console: Add ability to hot-unplug ports
virtio: console: Add debugfs files for each port to expose debug info
virtio: console: show error message if hvc_alloc fails for console
ports
Rusty Russell (6):
virtio: console: comment cleanup
virtio: console: statically initialize virtio_cons
hvc_console: make the ops pointer const.
virtio: console: port encapsulation
virtio: console: use vdev->priv to avoid accessing global var.
virtio: console: remove global var
Shirley Ma (1):
virtio: Add ability to detach unused buffers from vrings
drivers/char/Kconfig | 8 +
drivers/char/hvc_beat.c | 2 +-
drivers/char/hvc_console.c | 9 +-
drivers/char/hvc_console.h | 9 +-
drivers/char/hvc_iseries.c | 2 +-
drivers/char/hvc_iucv.c | 2 +-
drivers/char/hvc_rtas.c | 2 +-
drivers/char/hvc_udbg.c | 2 +-
drivers/char/hvc_vio.c | 2 +-
drivers/char/hvc_xen.c | 2 +-
drivers/char/virtio_console.c | 1559 ++++++++++++++++++++++++++++++++++++----
drivers/virtio/virtio_ring.c | 25 +
include/linux/virtio.h | 4 +
include/linux/virtio_console.h | 31 +-
14 files changed, 1496 insertions(+), 163 deletions(-)
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