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Siming Wan
3fa1057e35
Extend the CSR operations for QAT GEN4 devices to allow saving and restoring the rings state. The new operations will be used as a building block for implementing the state save and restore of Virtual Functions necessary for VM live migration. This adds the following operations: - read ring status register - read ring underflow/overflow status register - read ring nearly empty status register - read ring nearly full status register - read ring full status register - read ring complete status register - read ring exception status register - read/write ring exception interrupt mask register - read ring configuration register - read ring base register - read/write ring interrupt enable register - read ring interrupt flag register - read/write ring interrupt source select register - read ring coalesced interrupt enable register - read ring coalesced interrupt control register - read ring flag and coalesced interrupt enable register - read ring service arbiter enable register - get ring coalesced interrupt control enable mask Signed-off-by: Siming Wan <siming.wan@intel.com> Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Xin Zeng <xin.zeng@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Linux kernel
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