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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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