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path: root/src/vnet/devices/virtio/device.c
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2021-12-14virtio: integrate with new tx infraMohsin Kazmi1-25/+9
Type: improvement Change-Id: I337ec63d0868f665329d68eadf1744e080b73a0d Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-10-01devices: add support for pseudo header checksumMohsin Kazmi1-9/+33
Type: improvement Linux uses pseudo header checksum when checksum of l4 is offloaded. This patch adds similar support in virtual interfaces. Change-Id: I6a94d1104e59356f95057e7c122e3be9cd8659a3 Signed-off-by: Aloys Augustin <aloaugus@cisco.com> Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-08-20vlib: add format_vnet_buffer_no_chainBenoît Ganne1-3/+2
- add format_vnet_buffer and format_vnet_buffer_no_chain to mirror format_vlib_buffer and format_vlib_buffer_no_chain - format_vnet_buffer used to be the "no chain" version, replace all of its current use with the corresponding format_vnet_buffer_no_chain - add a function to dump vnet buffer details from gdb Type: improvement Change-Id: I143ce845f80e7ef937ea33a557b6e3b5988c5b8f Signed-off-by: Benoît Ganne <bganne@cisco.com>
2021-05-17virtio: add the checks for descriptors chain lenMohsin Kazmi1-0/+23
Type: fix virtio uses indirect descriptors for chain buffers. indirect descriptor chain is mapped on a vlib_buffer_t. Single descriptor is 16 bytes and vlib_buffer_t has 2048 bytes space. So maximum long chain can have 128 (=2048/16) indirect descriptors. This patch adds check to make sure descriptors chain len should not exceed 128. Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: I060cfb7709568f42c9b5634527172690ce66a1a3
2021-05-06vlib: fix the offload flags sizeMohsin Kazmi1-2/+2
Type: fix Change-Id: I433fe3799975fe3ba00fa30226f6e8dae34e88fc Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-05-05vlib: move offload flags to 1st cacheline in vlib_buffer_tMohsin Kazmi1-2/+2
Type: improvement Some tests i.e. ipsec see performance regression when offload flags are moved to 2nd cacheline. This patch moves them back to 1st cacheline. Change-Id: I6ead45ff6d2c467b0d248f409e27c2ba31758741 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-05-04virtio: add simple drop counter for interfaceMohsin Kazmi1-30/+33
Type: improvement Change-Id: I4ac6b1a6553e26a5c26b6761fa3c4cc5d4925486 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-03-24virtio: improve compilation timeDamjan Marion1-64/+57
Type: improvement Change-Id: I56dadb852f63da0597ddf4db395a22afdf2d9cc0 Signed-off-by: Damjan Marion <damarion@cisco.com>
2021-03-19interface: add capabilities flagsMohsin Kazmi1-2/+2
Type: improvement This patch adds flags to represent the modern NICs capabilities. Change-Id: I96d38d9ab7eac55974d72795cd100d8337168e1e Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-02-15vlib: refactor checksum offload supportMohsin Kazmi1-10/+12
Type: refactor This patch refactors the offload flags in vlib_buffer_t. There are two main reasons behind this refactoring. First, offload flags are insufficient to represent outer and inner headers offloads. Second, room for these flags in first cacheline of vlib_buffer_t is also limited. This patch introduces a generic offload flag in first cacheline. And detailed offload flags in 2nd cacheline of the structure for performance optimization. Change-Id: Icc363a142fb9208ec7113ab5bbfc8230181f6004 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-02-08virtio: add atomic call for kickingMohsin Kazmi1-9/+3
Type: fix Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: I41faa2ca249ff75e564a732af896e6b5d76bf665
2021-01-05tap: fix the buffering index for groMohsin Kazmi1-6/+8
Type: fix Fixes: 587f9130424fd451e4ba823240d02f655fb197d1 Change-Id: Ia1739fad6a36fa658aece157d7adea8bbaa751d2 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-12-04virtio: fix the interrupt handling for packed queuesMohsin Kazmi1-5/+25
Type: fix Change-Id: I2cc1cfd519e5b3502c59cf72e95e454f9122b8e5 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-12-03virtio: fix the offloads in tx pathMohsin Kazmi1-4/+2
Type: fix Change-Id: I1f1f0b6e8c5ef8bc9f2aca4bdc78e89fa951b841 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-11-23virtio: fix overflow in case of buffering + dropBenoît Ganne1-1/+0
Type: fix Fixes: 2e6f624f1f82ae0351dd05ad5d930d6876105519 Change-Id: Ib41c82ea1e8430afc920250fb0d054a2fb2d08c9 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-11-17virtio: virtio: implement packed queues from virtio 1.1Mohsin Kazmi1-17/+326
Type: feature Change-Id: I12703371541298efa029903d6762b1cd1f7322ca Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-11-12virtio: fix the index issueMohsin Kazmi1-7/+15
Type: fix Fixes: 587f9130424fd451e4ba823240d02f655fb197d1 Change-Id: I230993a54c84e22e324de2a8defeda83c517d733 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-11-05virtio: misc optimizationsDamjan Marion1-35/+41
Type: improvement Change-Id: Iaf98a60e37dd28828feca365b8fdc5d2f7ae6935 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-11-05virtio: move retry logic to outer functionDamjan Marion1-8/+9
Improves compile time.... Type: improvement Change-Id: I310a2e55e5e488a953d65fd065f7795a43d2e9a7 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-10-28virtio: fix the buffer array indexMohsin Kazmi1-1/+1
Type: fix Fixes: 2e6f624f1f82ae0351dd05ad5d930d6876105519 Change-Id: I24a9822d1968a134c7e41221f48296cc8a67dd91 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-10-26virtio: improve the compile timeMohsin Kazmi1-36/+32
Type: improvement packet buffering is common code to tun/tap/virtio. Change-Id: I59a339f268a28a0c32756e52d10d1ed6b207db42 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-10-26virtio: reduce the compile time for device.cMohsin Kazmi1-15/+19
Type: improvement GRO is common to tap/tun/virtio devices. Hence move to common place. Change-Id: Ibb099f3a80f493ddb934df6bb7640f7c9c370fd5 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-10-21virtio: run process to send interrupts to input nodesMohsin Kazmi1-17/+17
Type: improvement virtio interfaces support packet coalescing and buffering which depends on timer expiry to flush the stored packets periodically. virtio input node checks timer expiry and schedules tx queue accordingly. In poll mode, timer expiry is handled naturally, as input node runs periodically. In interrupt mode, virtio input node depends on the interrupts send from backend. Stored packets could starve, if there would not be interrupts to input node. This patch implements a process node which periodically sends interrupt to virtio input node given coalescing or buffering feature is enabled on an interface. Change-Id: Ic38f749f74b001073d4d0579dca149d0a4cea039 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-10-21virtio: move lock and kick to outer functionDamjan Marion1-31/+28
Type: improvement Change-Id: I4fdcb40142e8cc9f5f1d0035116659543d5d92fe Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-10-12misc: clang-11 and gcc-10 supportDamjan Marion1-1/+1
clang-11 complains: error: field 'buffer_template' with variable sized type 'vlib_buffer_t' not at the end of a struct or class is a GNU extension [-Werror,-Wgnu-variable-sized-type-not-at-end] Type: improvement Change-Id: I2cb6b4fde723a05b42cf33dd8130df074f0362ab Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-10-08interface: shorten vnet_hw_if_rx_modeDamjan Marion1-2/+2
This is part of bigger refactor. Type: refactor Change-Id: I6fc2c0a1e2d217a70952901bcf775b8485bd3c20 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-10-08virtio: fix the traceMohsin Kazmi1-23/+19
Type: fix This patch fixes the commit e347acbc31111504c015531e8ad764a86d489309 Change-Id: Icee7a6e250c94ae93e606d7869acc55c7a5806b1 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-09-28virtio: add packet buffering on txMohsin Kazmi1-7/+56
Type: feature This patch adds packet buffering on tx for slow backend which have some jitter/delays in freeing the vrings. There are some limitations to the current design: 1) It only works in poll mode. 2) Atleast 1 rx queue of an interface (with buffering enabled) should be placed on each worker and main thread. Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: Ib93c350298b228e80426e58ac77f3bbc93b8be27
2020-09-28virtio: fix the gro enable/disable on tx-vringsMohsin Kazmi1-7/+21
Type: fix Change-Id: I96c30baaf34fe7b0cd899966a507501e58cde934 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-09-24virtio: refactor tx traceMohsin Kazmi1-33/+37
Type: refactor Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: I37fef2c32d0561b944b201a1012b87c7ac315e73
2020-09-16misc: fix the formatting styleMohsin Kazmi1-6/+8
Type: style Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: Id86e16677564669b0295bbb9fc1303fe39a21b6f
2020-09-04virtio: remove kernel virtio header dependenciesMohsin Kazmi1-15/+14
Type: refactor tap, virtio and vhost use virtio/vhost header files from linux kernel. Different features are supported on different kernel versions, making it difficult to use those in VPP. This patch removes virtio/vhost based header dependencies to local header files. Change-Id: I064a8adb5cd9753c986b6f224bb075200b3856af Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-08-17tap: add gro supportMohsin Kazmi1-7/+26
Type: feature Change-Id: I5868dd267aa26aa97aec5fd70e70c5956ac52277 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-06-27virtio: add tx traceMohsin Kazmi1-2/+60
Type: improvement Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: I0b1a1ce085ceb75fe139092e40878566682a7986
2020-06-12virtio: interface type based improvementsMohsin Kazmi1-19/+45
Type: improvement Change-Id: I220ea6ab609e3c1628f5210be441d0d5e825a32c Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-05-05gso: add support for IP-IPMohsin Kazmi1-8/+14
Type: feature Change-Id: I37752af8496e0042a1da91124f3d94216b39ff11 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2020-04-22gso: add vxlan tunnel supportMohsin Kazmi1-7/+11
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 Kazmi1-7/+68
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 Kazmi1-1/+3
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 Kazmi1-26/+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>
2020-03-30gso: fix the header parser to read onlyMohsin Kazmi1-4/+38
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>
2020-03-21virtio: 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 Kazmi1-8/+95
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>
2020-01-08virtio: split gso and checksum offload functionalityMohsin Kazmi1-11/+77
Type: refactor Change-Id: I897e36bd5db593b417c2bac9f739bc51cf45bc08 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2019-12-04gso: remove the interface countMohsin Kazmi1-2/+1
Type: refactor Change-Id: I51405b9d09fb6fb03d08569369fdd4e11c647908 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2019-11-14virtio: refactor virtio-pci loggingDamjan Marion1-21/+0
Type: refactor Change-Id: I34306c1206b2bf5f521be6c6b78074ccf9259a08 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-05-24Tap: Fix the indirect buffers allocation VPP-1660Mohsin Kazmi1-12/+35
Indirect buffers are used to store indirect descriptors to xmit big packets. This patch moves the indirect buffer allocation from interface creation to device node. Now it allocates or deallocates buffers during tx for chained buffers. Change-Id: I55cec208a2a7432e12fe9254a7f8ef84a9302bd5 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> (cherry picked from commit 55203e745f5e3f1f6c4dbe99d6eab8dee4d13ea6)
2019-04-03virtio: Add support for multiqueueMohsin Kazmi1-6/+7
Change-Id: Id71ffa77e977651f219ac09d1feef334851209e1 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2019-03-13deprecate VLIB_DEVICE_TX_FUNCTION_MULTIARCHFilip Tehlar1-7/+7
Change-Id: I8819bcb9e228e7a432f4a7b67b6107f984927cd4 Signed-off-by: Filip Tehlar <ftehlar@cisco.com>