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PCI region request functions such as pci_request_region() currently have
the problem of becoming sometimes managed functions, if
pcim_enable_device() instead of pci_enable_device() was called. The PCI
subsystem wants to remove this deprecated behavior from its interfaces.
octeopn_ep enables its device with pcim_enable_device() (for VF. PF uses
manual management), but does so only to get automatic disablement. The
driver wants to manage its PCI resources for VF manually, without devres.
The easiest way not to use automatic resource management at all is by
also handling device enable- and disablement manually.
Replace pcim_enable_device() with pci_enable_device(). Add the necessary
calls to pci_disable_device().
Signed-off-by: Philipp Stanner <phasta@kernel.org>
Acked-by: Vamsi Attunuru <vattunuru@marvell.com>
Message-Id: <20250508085134.24084-2-phasta@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Lei Yang <leiyang@redhat.com>
Signed-off-by: Philipp Stanner <<a href="mailto:phasta@kernel.org" target="_blank">phasta@kernel.org</a>><br>
Acked-by: Vamsi Attunuru <<a href="mailto:vattunuru@marvell.com" target="_blank">vattunuru@marvell.com</a>><br>
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Added support to read the vendor-specific PCI capability to identify the
type of device being emulated.
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Shijith Thotton <sthotton@marvell.com>
Message-Id: <20250103153226.1933479-4-sthotton@marvell.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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The first interrupt of the device is used to notify the host about
device configuration changes, such as link status updates. The ISR
configuration area is updated to indicate a config change event when
triggered.
Signed-off-by: Satha Rao <skoteshwar@marvell.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Shijith Thotton <sthotton@marvell.com>
Message-Id: <20250103153226.1933479-2-sthotton@marvell.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Updated the driver to utilize all the MSI-X interrupt vectors supported
by each OCTEON endpoint VF, instead of relying on a single vector.
Enabling more interrupts allows packets from multiple rings to be
distributed across multiple cores, improving parallelism and
performance.
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Shijith Thotton <sthotton@marvell.com>
Message-Id: <20250103153226.1933479-1-sthotton@marvell.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Updates the debug messages in octep_vdpa_hw.c to use the %p format
specifier for pointers instead of casting them to u64.
Fixes smatch warning:
octep_hw_caps_read() warn: argument 3 to %016llx specifier is cast
from pointer
Fixes: 8b6c724cdab8 ("virtio: vdpa: vDPA driver for Marvell OCTEON DPU devices")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202409160431.bRhZWhiU-lkp@intel.com/
Signed-off-by: Srujana Challa <schalla@marvell.com>
Message-Id: <20240916162255.677774-1-schalla@marvell.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Return -EINVAL for invalid signatures. Don't return success.
Fixes: 8b6c724cdab8 ("virtio: vdpa: vDPA driver for Marvell OCTEON DPU devices")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Message-Id: <623e885b-1a05-479e-ab97-01bcf10bf5b8@stanley.mountain>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This commit introduces a new vDPA driver specifically designed for
managing the virtio control plane over the vDPA bus for OCTEON DPU
devices. The driver consists of two layers:
1. Octep HW Layer (Octeon Endpoint): Responsible for handling hardware
operations and configurations related to the DPU device.
2. Octep Main Layer: Compliant with the vDPA bus framework, this layer
implements device operations for the vDPA bus. It handles device
probing, bus attachment, vring operations, and other relevant tasks.
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: Vamsi Attunuru <vattunuru@marvell.com>
Signed-off-by: Shijith Thotton <sthotton@marvell.com>
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20240614144659.1776067-1-schalla@marvell.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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