linux-dev/drivers/vdpa/ifcvf, branch master

vdpa/ifcvf: fix the calculation of queuepair

2022-09-27T22:30:48Z

The q_pair_id to address a queue pair in the lm bar should be calculated by queue_id / 2 rather than queue_id / nr_vring. Fixes: 2ddae773c93b ("vDPA/ifcvf: detect and use the onboard number of queues directly") Signed-off-by: Angus Chen Reviewed-by: Jason Wang Reviewed-by: Michael S. Tsirkin Acked-by: Zhu Lingshan Message-Id: <20220923091013.191-1-angus.chen@jaguarmicro.com> Signed-off-by: Michael S. Tsirkin

vDPA/ifcvf: support userspace to query features and MQ of a management device

2022-08-11T08:26:08Z

Adapting to current netlink interfaces, this commit allows userspace to query feature bits and MQ capability of a management device. Currently both the vDPA device and the management device are the VF itself, thus this ifcvf should initialize the virtio capabilities in probe() before setting up the struct vdpa_mgmt_dev. Signed-off-by: Zhu Lingshan Message-Id: <20220722115309.82746-3-lingshan.zhu@intel.com> Signed-off-by: Michael S. Tsirkin

vDPA/ifcvf: get_config_size should return a value no greater than dev implementation

2022-08-11T08:26:08Z

Drivers must not access a BAR outside the capability length, and for a virtio device, ifcvf driver should not report any non-standard capability contents to the upper layers. Function ifcvf_get_config_size() is introduced here to return a safe value of the device config capability size. Signed-off-by: Zhu Lingshan Message-Id: <20220722115309.82746-2-lingshan.zhu@intel.com> Signed-off-by: Michael S. Tsirkin

vDPA/ifcvf: remove duplicated assignment to pointer cfg

2022-08-11T08:26:07Z

The assignment to pointer cfg is duplicated, the second assignment is redundant and can be removed. Signed-off-by: Colin Ian King Message-Id: <20220704190456.593464-1-colin.i.king@gmail.com> Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang

vdpa: ifcvf: Fix spelling mistake in comments

2022-08-11T08:26:07Z

There is a typo(does't) in comments. It maybe 'doesn't' instead of 'does't'. Signed-off-by: Zhang Jiaming Message-Id: <20220704024104.15535-1-jiaming@nfschina.com> Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang

vdpa: ifcvf: set pci driver data in probe

2022-06-01T06:16:38Z

We should set the pci driver data in probe instead of the vdpa device adding callback. Otherwise if no vDPA device is created we will lose the pointer to the management device. Fixes: 6b5df347c6482 ("vDPA/ifcvf: implement management netlink framework for ifcvf") Tested-by: Zheyu Ma Signed-off-by: Jason Wang Message-Id: <20220524055557.1938-1-jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin

vDPA/ifcvf: fix uninitialized config_vector warning

2022-05-31T16:45:09Z

Static checkers are not informed that config_vector is controlled by vf->msix_vector_status, which can only be MSIX_VECTOR_SHARED_VQ_AND_CONFIG, MSIX_VECTOR_SHARED_VQ_AND_CONFIG and MSIX_VECTOR_DEV_SHARED. This commit uses an "if...elseif...else" code block to tell the checkers that it is a complete set, and config_vector can be initialized anyway Signed-off-by: Zhu Lingshan Reviewed-by: Dan Carpenter Message-Id: <20220424072806.1083189-1-lingshan.zhu@intel.com> Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang

vdpa: multiple address spaces support

2022-05-31T16:44:27Z

This patches introduces the multiple address spaces support for vDPA device. This idea is to identify a specific address space via an dedicated identifier - ASID. During vDPA device allocation, vDPA device driver needs to report the number of address spaces supported by the device then the DMA mapping ops of the vDPA device needs to be extended to support ASID. This helps to isolate the environments for the virtqueue that will not be assigned directly. E.g in the case of virtio-net, the control virtqueue will not be assigned directly to guest. As a start, simply claim 1 virtqueue groups and 1 address spaces for all vDPA devices. And vhost-vDPA will simply reject the device with more than 1 virtqueue groups or address spaces. Signed-off-by: Jason Wang Signed-off-by: Gautam Dawar Message-Id: <20220330180436.24644-7-gdawar@xilinx.com> Signed-off-by: Michael S. Tsirkin

vdpa: introduce virtqueue groups

2022-05-31T16:44:27Z

This patch introduces virtqueue groups to vDPA device. The virtqueue group is the minimal set of virtqueues that must share an address space. And the address space identifier could only be attached to a specific virtqueue group. Signed-off-by: Jason Wang Signed-off-by: Gautam Dawar Message-Id: <20220330180436.24644-6-gdawar@xilinx.com> Signed-off-by: Michael S. Tsirkin

vDPA/ifcvf: cacheline alignment for ifcvf_hw

2022-03-28T20:52:57Z

This commit introduces a new cacheline aligned layout for ifcvf_hw. Signed-off-by: Zhu Lingshan Link: https://lore.kernel.org/r/20220222115428.998334-6-lingshan.zhu@intel.com Signed-off-by: Michael S. Tsirkin