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2018-05-14virtchnl: Whitespace and parenthesis cleanupBruce Allan1-2/+2
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 <bruce.w.allan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-02-14virtchnl: Add filter data structuresHarshitha Ramamurthy1-0/+59
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 <harshitha.ramamurthy@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-02-14virtchnl: Add a macro to check the size of a unionHarshitha Ramamurthy1-3/+5
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 <harshitha.ramamurthy@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-02-14virtchnl: Add virtchl structures to support queue channelsHarshitha Ramamurthy1-0/+40
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 <harshitha.ramamurthy@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-10-13i40e/i40evf: don't trust VF to reset itselfAlan Brady1-2/+2
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 <alan.brady@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-09-29i40e: Enable VF to negotiate number of allocated queuesAlan Brady1-0/+20
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 <alan.brady@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-08-27i40e/i40evf: support for VF VLAN tag stripping controlMariusz Stachura1-0/+5
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 <IF> rxvlan on/off" settings. Signed-off-by: Mariusz Stachura <mariusz.stachura@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-08-25i40e/i40evf: rename vf_offload_flags to vf_cap_flags in struct virtchnl_vf_resourceStefan Assmann1-2/+2
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 <sassmann@kpanic.de> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01virtchnl: Add compile time static asserts to validate structure sizesSridhar Samudrala1-0/+50
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 <sridhar.samudrala@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01virtchnl: Add pad fields to a couple of structuresSridhar Samudrala1-0/+3
This removes holes and makes structure sizes consistent across 32 and 64 bit builds. Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01i40e/virtchnl: move function to virtchnlJesse Brandeburg1-0/+147
This moves a function that is needed for the virtchnl interface from the i40e PF driver over to the virtchnl.h file. It was manually verified that the function in question is unchanged except for the function name and function header, which explains the slight difference in the number of lines removed/added. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01virtchnl: finish conversion to virtchnl interfaceJesse Brandeburg1-47/+81
This patch implements the complete version of the virtchnl.h file with final renames, and fixes the related code in i40e and i40evf. It also expands comments, and adds details on the usage of certain fields. In addition, due to the changes a couple of casts are needed to prevent errors found by sparse after renaming some fields. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01i40evf/virtchnl: whitespace cleanupsJesse Brandeburg1-3/+3
This patch fixes up a bunch of whitespace issues introduced by the previous automated change of name from i40e to virtchnl. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01i40e/virtchnl: refactor code for validate checksJesse Brandeburg1-0/+17
This change updates the arguments passed to the validate function and fixes the caller, as well as uses the new return values added to virtchnl.h One other minor tweak, remove a duplicate set to zero of valid_len. This is in preparation for moving the function to virtchnl.h. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01virtchnl: convert to new macrosJesse Brandeburg1-0/+3
As part of the conversion, change the arguments to VF_IS_V1[01] macros and move them to virtchnl.h Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01virtchnl: rename i40e to generic virtchnlJesse Brandeburg1-116/+117
This morphs all the i40e and i40evf references to/in virtchnl.h to be generic, using only automated methods. Updates all the callers to use the new names. A followup patch provides separate clean ups for messy line conversions from these "automatic" changes, to make them more reviewable. Was executed with the following sed script: sed -i -f transform_script drivers/net/ethernet/intel/i40e/i40e_client.c sed -i -f transform_script drivers/net/ethernet/intel/i40e/i40e_prototype.h sed -i -f transform_script drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c sed -i -f transform_script drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40e_common.c sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40e_prototype.h sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40evf.h sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40evf_client.c sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40evf_main.c sed -i -f transform_script drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c sed -i -f transform_script include/linux/avf/virtchnl.h transform_script: ----8<---- s/I40E_VIRTCHNL_SUPPORTED_QTYPES/SAVE_ME_SUPPORTED_QTYPES/g s/I40E_VIRTCHNL_VF_CAP/SAVE_ME_VF_CAP/g s/I40E_VIRTCHNL_/VIRTCHNL_/g s/i40e_virtchnl_/virtchnl_/g s/i40e_vfr_/virtchnl_vfr_/g s/I40E_VFR_/VIRTCHNL_VFR_/g s/VIRTCHNL_OP_ADD_ETHER_ADDRESS/VIRTCHNL_OP_ADD_ETH_ADDR/g s/VIRTCHNL_OP_DEL_ETHER_ADDRESS/VIRTCHNL_OP_DEL_ETH_ADDR/g s/VIRTCHNL_OP_FCOE/VIRTCHNL_OP_RSVD/g s/SAVE_ME_SUPPORTED_QTYPES/I40E_VIRTCHNL_SUPPORTED_QTYPES/g s/SAVE_ME_VF_CAP/I40E_VIRTCHNL_VF_CAP/g ----8<---- Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-06-01i40e/i40evf: create and use new unified header fileJesse Brandeburg1-0/+446
This moves a header for i40evf to include/linux/avf/virtchnl.h. The directory name AVF is an acronym for the Intel(R) Adaptive Virtual Function. This first step creates the new file, which is a rename of drivers/net/ethernet/intel/i40evf/i40e_virtchnl.h to include/linux/avf/virtchnl.h, and should show up in git as a rename when using git log --follow. To keep things building after the move, the changes to the i40evf driver are made to point to the new include file location. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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