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2020-04-27virtio: support virtio 1.1 packed ring in vhostSteven Luong8-156/+1604
virtio 1.1 defines a number of new features. Packed ring is among the most notable and important one. It combines used, available, and descripptor rings into one. This patch provides experimental support for packed ring. To avoid regression, when packed ring is configured for the interface, it is branched to a separate RX and TX driver. Non packed ring should continue to perform as it was before. Packed ring is tested using qemu4.2 and ubuntu focal fossa (kernel 5.4.0-12) on the guess VM which supports packed ring. To configure VPP with packed ring, just add the optional keyword "packed" when creating the vhost interface. To bring up the guest VM with packed ring, add "packed=on" in the qemu launch command. To facilitate troubleshooting, also added "verbose" option in show vhost desc CLI to include displaying the indirect descriptors. Known qemu reconnect issue - If VPP is restarted, guest VMs also need to be restarted. The problem is kernel virtio-net-pci keeps track of the previous available and used indices. For virtio 1.0, these indices are in shared memory and qemu can easily copy them to pass to the backend for reconnect. For virio 1.1, these indices are no longer in shared memory. Qemu needs a new mechanism to retrieve them and it is not currently implemented. So when the protocol reconnects, qemu does not have the correct available and used indices to pass to the backend. As a result, after the reconnect, virtio-net-pci is reading the TX ring from the wrong position in the ring, not the same position which the backend is writing. Similar problem exists also in the RX. Type: feature Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: I5afc50b0bafab5a1de7a6dd10f399db3fafd144c
2020-04-27devices: allow link state down with netlinkMatthew Smith1-1/+1
Type: fix Use the up parameter in vnet_netlink_set_link_state(). It was ignoring the parameter and always setting IFF_UP on an interface. Change-Id: I0d44406d982afbdc43bc6b26d0f22c0bdd47abdc Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2020-04-24virtio: vhost checksum problem for ipv6Steven Luong1-3/+3
When checksum is enable for IPv6, it erroneously set the flag VNET_BUFFER_F_OFFLOAD_IP_CKSUM. That flag is meant for ip4 packets only. Type: fix Ticket: VPP-1857 Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: Id03b2937bfa34e2a9b50a36aafe0700bad7fb95e (cherry picked from commit f78294d8468f156e066e7e69aab3a1b285810c3a)
2020-04-22gso: add vxlan tunnel supportMohsin Kazmi2-10/+14
Type: feature Change-Id: I85f6ec77187a4983c66c5e22fd39fbb2cef82902 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-04-17virtio: fix to use chained descriptors when missing indirect descriptorMohsin Kazmi2-7/+79
Some vhost-backed missing the VIRTIO_RING_F_INDIRECT_DESC feature. Previously, vpp doesn't support jumbo frames using chained descriptors. This patch fixes this issue. Type: fix Change-Id: I20487e201e88ea136b556ac84dde058019ab3e78 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-04-17tap: add initial support for tunMohsin Kazmi9-47/+190
Type: feature Change-Id: I699a01ac925fe5c475a36032edb7018618bb4dd4 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-04-10virtio: fix gso and csum offload errors handlingMohsin Kazmi1-45/+82
GSO and CSUM offloaded packets are transmitted even itf doesn't support GSO/CSUM. This patch fixes it by logging the respective errors and dropping the packets. Type: fix Change-Id: I5ab19d15ce6aa9fda515313c313a5a56c0b96837 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-04-08virtio: fix the tcp/udp checksum offloadsMohsin Kazmi2-28/+0
Some vhost-backend calculates the wrong checksum in case of tcp/udp offload when driver resets tcp/udp checksum field to '0'. Type: fix Change-Id: I1d2a9b95b3d5cc1decac38027104a04df2af4680 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-03-31vlib: move pci api types from vnet/pci to vlib/pciJakub Grajciar2-2/+2
Type: fix Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com> Change-Id: I1a60809a8bbbbb8ac8b65ab990d51aae1229647f Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
2020-03-30gso: fix the header parser to read onlyMohsin Kazmi2-4/+44
Previously, header parser sets the tcp/udp checksum to 0. It should be read only function for vlib_buffer_t. Type: fix Change-Id: I9c3398372f22998da3df188f0b7db13748303068 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-03-23virtio: vhost gso checksum error when both indirect and mrg_rxbuf are offSteven Luong1-20/+19
Turn on gso, turn off both indirect and mrg_rxbuf caused traffic received and sent with checksum error. The problem is we are not mapping the hdr correctly in the shared memory address. Type: fix Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: I7ef3bc2755544167b0e624365988111b17399e89
2020-03-23tap: fix the numa/queue for buffersMohsin Kazmi1-1/+1
Type: fix Change-Id: Ib320171708bebde6d1dae0b2c665f9bcfc9102db Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-03-23virtio: improve error handlingMohsin Kazmi1-9/+30
Type: improvement Change-Id: I134465760272ceb29f85486cba838d8687696bbf Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-03-21virtio: fix link up/down flagMohsin Kazmi1-3/+9
Type: fix "set int state <interface> down" puts the virtio device link down. It will not put the link in "UP" state, when "set int state <interface up>" will be used again to change the interface admin up. This patch fixes it. To test: create tap set int state tap0 up set int state tap0 down sh hardware sh int set int state tap0 up sh int sh hardware Change-Id: I3c0e31539f8a2a1e40220e7fb57eedecf408f067 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-03-21virtio: fix the out of order descriptors in txMohsin Kazmi4-8/+102
Type: fix Some vhost-backends give used descriptors back in out-of-order. This patch fixes the native virtio to handle out-of-order descriptors. Change-Id: I57323303349f6a385e412ee22772ab979ae8edbf Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-03-13devices: netlink create the object if missingDave Barach1-4/+4
Type: fix Fixes: b49bc1a Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I3dd81a2484c8b4925fd07556576c29d1cde337e1
2020-03-05tap: add support for persistanceMohsin Kazmi7-43/+117
Type: feature Change-Id: I775f53531972447ebae0d69b9e2dfeee84d115e5 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-03-02virtio: fix the coverity warningMohsin Kazmi1-4/+1
Type: fix Change-Id: Ia75edb74eb7c746dd4c66bdbff75efb949575ce4 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-02-26api: improve api string safetyJakub Grajciar1-1/+1
- Remove vl_api_from_api_string to prevent use of not nul-terminated strings. - Rename vl_api_from_api_to_vec -> vl_api_from_api_to_new_vec to imply a new vector is created. NOT nul terminated. - Add vl_api_from_api_to_new_c_string. Returns nul terminated string in a new vector. - Add vl_api_c_string_to_api_string. Convert nul terminated string to vl_api_string_t - Add vl_api_vec_to_api_string. Convert NON nul terminated vector to vl_api_string_t Type: fix Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com> Change-Id: Iadd59b612c0d960a34ad0dd07a9d17f56435c6ea Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
2020-02-18devices: netlink: add more error loggingMohsin Kazmi1-10/+50
Type: improvement Change-Id: I4d8ca04840845e1ba631e4260e155df2486155e6 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-02-15tap: fix the default parameter for num_rx_queuesMohsin Kazmi1-9/+3
Type: fix Change-Id: I1a20fea56f1ba1fada7c7ce96ea333bf097b1273 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-02-04virtio: update FEATURE.yaml to include description for vhost-userSteven Luong1-3/+7
Add features supported by vhost-user Type: docs Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: Iba4c5244c40324b603e2803ade8ecc0816326de8
2020-02-03virtio: vhost gso is broken in some topologySteven Luong1-2/+8
Recent modification added a call to vnet_gso_header_offset_parser in the beginning of vhost_user_handle_tx_offload. The former routine may set tcp or udp->checksum to 0. While it is appropriate to set it to 0 for the GSO packet, it is broken and causes checksum error if the aformentiooned routine is called by a non-GSO packet. The fix is to not call vhost_user_handle_tx_offload if the buffer does not indicate checksum offload is needed. Type: fix Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: I6e699d7a40b7887ff149cd8f77e8f0fa9374ef19
2020-01-30misc: deprecate netmap and ixge driversDamjan Marion10-2148/+0
Both are out of sync for long time... Type: refactor Change-Id: I7de3170d35330fc172501d87655dfef91998b8fe Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-01-30tap: fix host mtu configuration settingMohsin Kazmi1-12/+13
host mtu can't be set if tap interface is in namespace. This patch fixes this issue. Type: fix Change-Id: I63811c4b56c708fe708061a8afbaec41994f08ca Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-01-30tap: fix the host mac addressMohsin Kazmi3-20/+11
Tap configuration code sets the host mac address two time. This patch fixes it. Type: fix Change-Id: I7bebb9b7f25352a8a9a98bae6a0636757c0cea9c Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-01-27devices: vhost: fix data offset on inputBenoît Ganne1-11/+1
Regardless of whether the virtio_net_hdr is sent as a separate descriptors or in the same descriptor as the data, we always want to skip the header length - maybe moving to the next descriptor along the way. Type: fix Change-Id: Iaa70aeb310e589639b20f8c7029aaa8d3ce5d307 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-01-10docs: Edit FEATURE.yaml files so they can be publishedJohn DeNisco1-1/+1
Type: docs Signed-off-by: John DeNisco <jdenisco@cisco.com> Change-Id: I7280e5c5ad10a66c0787a5282291a2ef000bff5f
2020-01-08virtio: fix ip4 checksum offloadMohsin Kazmi1-2/+14
Type: fix Change-Id: I08747ac308e5c1768a3a6aa5f83a016dc0274a1c Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-01-08tap: split gso and checksum offload functionalityMohsin Kazmi5-19/+108
Type: refactor Change-Id: I0d4b79ef384c11c841576d264bfd8ccb21783e10 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-01-08virtio: split gso and checksum offload functionalityMohsin Kazmi9-44/+312
Type: refactor Change-Id: I897e36bd5db593b417c2bac9f739bc51cf45bc08 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-01-03devices: virtio API cleanupJakub Grajciar2-16/+21
Use consistent API types. Type: fix Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com> Change-Id: I38a409af770c88c1eb2c68b24abef2a5a91e1b9a
2020-01-02virtio: fix checksum offload supportBenoît Ganne1-10/+21
Checksum offload and GSO are independent. We must support checksum offload if it has been negotiated, independently of GSO. Ticket: VPPSUPP-47 Type: fix Change-Id: I8cb6dd58b61714ebb2726eb4aab0d74d49fdab99 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2019-12-17virtio: fix the tx queue thread bindingMohsin Kazmi1-3/+17
Type: fix Change-Id: Ibbe7e20aebc9153ceba07e048dc0eaa45193f4ea Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2019-12-11devices: vhost API cleanupJakub Grajciar5-26/+171
Use consistent API types. Type: fix Change-Id: I2dec594cb834a45004edc9ca58ad7c7b4bd7ff06 Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
2019-12-11devices: tap API cleanupJakub Grajciar5-93/+128
Use consistent API types. Type: fix Change-Id: I11cc7f6347b7a60e5fd41e54f0c7994e2d81199f Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
2019-12-10api: multiple connections per processDave Barach6-6/+6
Type: feature Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I2272521d6e69edcd385ef684af6dd4eea5eaa953
2019-12-06gso: fix the tap/virtio driver for header offsetMohsin Kazmi1-1/+25
Type: fix Change-Id: Ied34466907fa8ad44f997c600dbf481be4d22027 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2019-12-05gso: add protocol header parserMohsin Kazmi1-33/+10
Type: feature Change-Id: I7c6be2b96d19f82be237f6159944f3164ea512d0 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2019-12-04gso: remove the interface countMohsin Kazmi4-17/+1
Type: refactor Change-Id: I51405b9d09fb6fb03d08569369fdd4e11c647908 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2019-11-25tap: fix coverity warning 205875Andrew Yourtchenko1-1/+6
check the return result from fcntl, and if error, behave the same way the expansion of _IOCTL macro does. Type: fix Change-Id: I6d537d1bdedae64470612aef64b46e07387fe84b Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2019-11-20tap: multiqueue supportDamjan Marion5-161/+261
Type: feature Change-Id: I7dcc8c6911d02729b3bda1b3a21a211c82c3b949 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-11-20virtio: fix use-after-freeBenoît Ganne1-1/+1
Type: fix Change-Id: Ic67d9da65d937f56ecf994a5504c6351624b32ff Signed-off-by: Benoît Ganne <bganne@cisco.com>
2019-11-14virtio: refactor virtio-pci loggingDamjan Marion7-96/+143
Type: refactor Change-Id: I34306c1206b2bf5f521be6c6b78074ccf9259a08 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-11-13virtio: feature arc have higher priority than redirectDamjan Marion1-3/+4
Type: fix Fixes: 8389fb9 Change-Id: Ie159eb444b28b36a7af86049b80fba4e49be93cb Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-11-12tap: Move client registration check to topPaul Vinciguerra2-9/+14
Type: fix Change-Id: I33dc4cf7b6c69f74c7bf4971ce59442678b878ef Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-11-12virtio: remove unused codeDamjan Marion1-4/+0
Type: refactor Change-Id: I25f1cc3969c6a6ec1384079dc437537acd2ec152 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-11-08tap: add check for vhost-net backendDamjan Marion1-0/+9
Type: feature Change-Id: I402f4c88dee70fbb0b3b61dc4e0a4034d24d8b56 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-11-08tap: fix cli parserDamjan Marion1-4/+5
Type: fix Change-Id: I38ee9efd23774cce7790565825527cca9ba6f200 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-11-06build: add yaml file linting to make checkstylePaul Vinciguerra5-7/+24
Type: feature fts and trex rely on yaml config files. Verify that they are valid, so comitters can catch errors early. Change-Id: Ide0bb276659119c59bdbbc8b8155e37562a648b8 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>