12 Commits

Author SHA1 Message Date
Darek Stojaczyk
89c1dc774e virtio: export spec-defined structures into a separate header
Those will be reused by the vhost target and
its message handling hooks.

Change-Id: If41118e3700f3b445312bb691c493bd13134546b
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/446084
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2019-03-13 14:26:20 +00:00
Darek Stojaczyk
e67743162f virtio/user: minor cleanup
Make struct vhost_user_msg match the format defined in
the vhost-user spec. The custom additions were inhereted
from DPDK, but SPDK never made use of them. Also replace
direct sizeof(*msg) usages with a handy macro that was
already there. Finally add a VHOST_USER prefix to the
VHOST_MEMORY_MAX_NREGIONS #define.

Change-Id: Idef60fdc62a9e96f076059d60aad796fcc9d3e1c
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/446083
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2019-03-13 14:26:20 +00:00
Dariusz Stojaczyk
23670d8db7 virtio: support dynamic memory registrations
We need to resend SET_MEM_TABLE whenever memory
is hotplugged or hotremoved.

Change-Id: I9bdc975f11b07866122bc49b9cf372071c5370f2
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/422582
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2018-10-23 18:02:12 +00:00
Dariusz Stojaczyk
eeb1650c06 virtio: propagate error codes
Many functions were inconsistent in regard of error codes
they returned. In a couple of places we could print "Operation
not permitted" via strerror() from functions that were
supposed to return negative return codes, but returned
`-1` instead. (-EPERM == -1)

Change-Id: I7c36e54d449352dbd8036746e4f44a65c9b1d0b3
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/419007
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-08-01 19:16:54 +00:00
Dariusz Stojaczyk
48322f0c37 virtio/user: negotiate VHOST_USER_PROTOCOL_F_CONFIG
It was introduced a while after the original GET/SET_CONFIG
implementation in QEMU, but within the same QEMU release (2.12?).
It is required by the vhost-user spec. Rte_vhost doesn't check
it, so everything worked so far, but other implementations
might (and should) reject our GET_CONFIG requests right now.

As a part of this feature, we should also check the same
flag before sending GET/SET_CONFIG messages to respect those
devices that really don't implement F_CONFIG. This is done
in a separate patch.

Change-Id: Ib7e9b11a0074f4aee70609af0cad2ef59a8bf427
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/417459
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-07-05 20:47:38 +00:00
Dariusz Stojaczyk
0b9e4c8ff7 virtio/user: negotiate VHOST_USER_PROTOCOL_F_MQ
Required by the vhost-user spec.

Change-Id: Id7143a0f6cc34463ad5f22d8db96ac5c51e04081
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/417457
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-07-05 20:47:38 +00:00
Dariusz Stojaczyk
5910855c68 virtio/user: support protocol features
rte_vhost doesn't respect those, but any other
implementation should.

Change-Id: Id0a0fa031b7c6e9d572cdffeeb3a1e40d824826d
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/417456
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-07-05 20:47:38 +00:00
Dariusz Stojaczyk
f0501959a0 virtio/user: remove leftover kernel vhost references
We don't support the kernel vhost. Vhost-SCSI is not even
fully implemented in Linux, so there's no point trying.

Change-Id: Ie564d46c497718081dd2a5c28829fdcf88e1c0a0
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/417455
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-07-02 19:20:08 +00:00
Dariusz Stojaczyk
b5ad869cc1 virtio: merge contiguous memory regions
Although contiguous, memory regions may appear as separate
/proc/self/maps entries.

This patch brings support for DPDK 18.05.

Change-Id: I91eb8adc2c073a103f687320ec7b9dabe1e066b3
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/413167
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-06-01 20:14:32 +00:00
Dariusz Stojaczyk
59d901ad72 virtio/user: implement get/set config messages
This will let us e.g. read device blocksize in the
upcoming vhost-blk initiator. All the public API
was already there - we've been using it for
virtio-pci. Now we're making use of it for vhost-user
as well.

Change-Id: I39eab820bb9bbff59c8b8efa79cc97d2ec7806fd
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/398828
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-02-23 15:37:11 -05:00
Pawel Wodkowski
891c12a63c util: add spdk_strerror() wrapper with TLS support
This patch remove need for additional buffer when translating error code
to string.

Change-Id: Iaa60088b5c450581d3cdddbb425119b17d55a44b
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/386114
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-01-04 15:00:09 -05:00
Dariusz Stojaczyk
9dde5e5c27 virtio: add new library virtio
Exported lib/bdev/rte_virtio as a separate
library not dependent on bdev.

Virtio is now accessible via spdk_internal/virtio.h.
The header is marked `internal`, as it's
not meant to be used by end users. It's
not handy to handle all backend-specific
(e.g. Virtio-SCSI) logic in a user code.

For now the Virtio interface is publicly
exposed only via bdev_virtio module. We
might want to consider adding a separate,
public Virtio-SCSI library in the future.

Note: this patch doesn't do any changes
to the virtio code. Everything is
moved 1:1.

Change-Id: I805e5d12d265d82b0bc5784c89fbadb81abdb278
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/388166
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-12-26 13:03:29 -05:00