user/sven/linux.git/include/linux/avf, branch v4.19.159

virtchnl: Fix off by one error

2019-12-13T07:51:18Z

[ Upstream commit 843faff87af261bf55eda719a06087af0486a168 ] When calculating the valid length for a VIRTCHNL_OP_ENABLE_CHANNELS message, we accidentally allowed messages with one extra virtchnl_channel_info structure on the end. This happened due to an off by one error, because we forgot that valid_len already accounted for one virtchnl_channel_info structure, so we need to subtract one from the num_tc value. Signed-off-by: Alice Michael Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher Signed-off-by: Sasha Levin

virtchnl: Whitespace and parenthesis cleanup

2018-05-14T14:05:16Z

Clean up existing instances of unnecessary parentheses in if statement and change order of conditionals to make it easier to read The opening /* should be followed by a single space and the closing */ should be preceded with a single space. Signed-off-by: Bruce Allan Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher

virtchnl: Add filter data structures

2018-02-14T17:43:22Z

This patch adds infrastructure to send virtchnl messages to the PF to configure filters on the VF. The patch adds a struct called virtchnl_filter which contains information about the fields in the user-specified tc filter. Signed-off-by: Harshitha Ramamurthy Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher

virtchnl: Add a macro to check the size of a union

2018-02-14T17:43:22Z

This patch adds a macro to check if the size of a union is correct. It throws a divide by zero error if the union is not of the correct size. Signed-off-by: Harshitha Ramamurthy Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher

virtchnl: Add virtchl structures to support queue channels

2018-02-14T17:43:22Z

This patch defines new structs in support of the virtchannel message that the VF sends to the PF to create a queue channel specified by the user via tc tool. Signed-off-by: Harshitha Ramamurthy Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher

i40e/i40evf: don't trust VF to reset itself

2017-10-13T21:27:13Z

When using 'ethtool -L' on a VF to change number of requested queues from PF, we shouldn't trust the VF to reset itself after making the request. Doing it that way opens the door for a potentially malicious VF to do nasty things to the PF which should never be the case. This makes it such that after VF makes a successful request, PF will then reset the VF to institute required changes. Only if the request fails will PF send a message back to VF letting it know the request was unsuccessful. Testing-hints: There should be no real functional changes. This is simply hardening against a potentially malicious VF. Signed-off-by: Alan Brady Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher

i40e: Enable VF to negotiate number of allocated queues

2017-09-29T19:51:01Z

Currently the PF allocates a default number of queues for each VF and cannot be changed. This patch enables the VF to request a different number of queues allocated to it. This patch also adds a new virtchnl op and capability flag to facilitate this negotiation. After the PF receives a request message, it will set a requested number of queues for that VF. Then when the VF resets, its VSI will get a new number of queues allocated to it. This is a best effort request and since we only allocate a guaranteed default number, if the VF tries to ask for more than the guaranteed number, there may not be enough in HW to accommodate it unless other queues for other VFs are freed. It should also be noted decreasing the number queues allocated to a VF to below the default will NOT enable the allocation of more than 32 VFs per PF and will not free queues guaranteed to each VF by default. Signed-off-by: Alan Brady Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher

i40e/i40evf: support for VF VLAN tag stripping control

2017-08-27T22:47:43Z

This patch gives VF capability to control VLAN tag stripping via ethtool. As rx-vlan-offload was fixed before, now the VF is able to change it using "ethtool --offload rxvlan on/off" settings. Signed-off-by: Mariusz Stachura Signed-off-by: Jeff Kirsher

i40e/i40evf: rename vf_offload_flags to vf_cap_flags in struct virtchnl_vf_resource

2017-08-25T21:52:29Z

The current name of vf_offload_flags indicates that the bitmap is limited to offload related features. Make this more generic by renaming it to vf_cap_flags, which allows for other capabilities besides offloading to be added. Signed-off-by: Stefan Assmann Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher

virtchnl: Add compile time static asserts to validate structure sizes

2017-06-01T21:26:23Z

This uses preprocessor tricks to make sure that a divide by zero occurs if a struct changes size outside the expected number of bytes. Signed-off-by: Sridhar Samudrala Signed-off-by: Jesse Brandeburg Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher