diff options
author | Xin Zeng <xin.zeng@intel.com> | 2024-03-06 16:58:53 +0300 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2024-04-02 05:47:43 +0300 |
commit | 0fce55e5334d380d8a09f80ba9c9b68eeea6971d (patch) | |
tree | 396ec5b5e12ecfe6f4d9da9ee80cc9554df0b0cc /drivers/crypto | |
parent | bbfdde7d195ffc9c10598055c449b24c50a0cd25 (diff) | |
download | linux-0fce55e5334d380d8a09f80ba9c9b68eeea6971d.tar.xz |
crypto: qat - add interface for live migration
Extend the driver with a new interface to be used for VF live migration.
This allows to create and destroy a qat_mig_dev object that contains
a set of methods to allow to save and restore the state of QAT VF.
This interface will be used by the qat-vfio-pci module.
Signed-off-by: Xin Zeng <xin.zeng@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
-rw-r--r-- | drivers/crypto/intel/qat/qat_common/Makefile | 2 | ||||
-rw-r--r-- | drivers/crypto/intel/qat/qat_common/adf_accel_devices.h | 17 | ||||
-rw-r--r-- | drivers/crypto/intel/qat/qat_common/adf_gen4_vf_mig.h | 10 | ||||
-rw-r--r-- | drivers/crypto/intel/qat/qat_common/qat_mig_dev.c | 130 |
4 files changed, 158 insertions, 1 deletions
diff --git a/drivers/crypto/intel/qat/qat_common/Makefile b/drivers/crypto/intel/qat/qat_common/Makefile index ceaa685352ed..9fba31d4ac7f 100644 --- a/drivers/crypto/intel/qat/qat_common/Makefile +++ b/drivers/crypto/intel/qat/qat_common/Makefile @@ -54,6 +54,6 @@ intel_qat-$(CONFIG_DEBUG_FS) += adf_transport_debug.o \ intel_qat-$(CONFIG_PCI_IOV) += adf_sriov.o adf_vf_isr.o adf_pfvf_utils.o \ adf_pfvf_pf_msg.o adf_pfvf_pf_proto.o \ adf_pfvf_vf_msg.o adf_pfvf_vf_proto.o \ - adf_gen2_pfvf.o adf_gen4_pfvf.o + adf_gen2_pfvf.o adf_gen4_pfvf.o qat_mig_dev.o intel_qat-$(CONFIG_CRYPTO_DEV_QAT_ERROR_INJECTION) += adf_heartbeat_inject.o diff --git a/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h b/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h index 986e63ec702d..b08fea10121e 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h +++ b/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h @@ -9,6 +9,7 @@ #include <linux/pci.h> #include <linux/ratelimit.h> #include <linux/types.h> +#include <linux/qat/qat_mig_dev.h> #include "adf_cfg_common.h" #include "adf_rl.h" #include "adf_telemetry.h" @@ -258,6 +259,20 @@ struct adf_dc_ops { void (*build_deflate_ctx)(void *ctx); }; +struct qat_migdev_ops { + int (*init)(struct qat_mig_dev *mdev); + void (*cleanup)(struct qat_mig_dev *mdev); + void (*reset)(struct qat_mig_dev *mdev); + int (*open)(struct qat_mig_dev *mdev); + void (*close)(struct qat_mig_dev *mdev); + int (*suspend)(struct qat_mig_dev *mdev); + int (*resume)(struct qat_mig_dev *mdev); + int (*save_state)(struct qat_mig_dev *mdev); + int (*save_setup)(struct qat_mig_dev *mdev); + int (*load_state)(struct qat_mig_dev *mdev); + int (*load_setup)(struct qat_mig_dev *mdev, int size); +}; + struct adf_dev_err_mask { u32 cppagentcmdpar_mask; u32 parerr_ath_cph_mask; @@ -325,6 +340,7 @@ struct adf_hw_device_data { struct adf_dev_err_mask dev_err_mask; struct adf_rl_hw_data rl_data; struct adf_tl_hw_data tl_data; + struct qat_migdev_ops vfmig_ops; const char *fw_name; const char *fw_mmp_name; u32 fuses; @@ -381,6 +397,7 @@ struct adf_hw_device_data { #define GET_CSR_OPS(accel_dev) (&(accel_dev)->hw_device->csr_ops) #define GET_PFVF_OPS(accel_dev) (&(accel_dev)->hw_device->pfvf_ops) #define GET_DC_OPS(accel_dev) (&(accel_dev)->hw_device->dc_ops) +#define GET_VFMIG_OPS(accel_dev) (&(accel_dev)->hw_device->vfmig_ops) #define GET_TL_DATA(accel_dev) GET_HW_DATA(accel_dev)->tl_data #define accel_to_pci_dev(accel_ptr) accel_ptr->accel_pci_dev.pci_dev diff --git a/drivers/crypto/intel/qat/qat_common/adf_gen4_vf_mig.h b/drivers/crypto/intel/qat/qat_common/adf_gen4_vf_mig.h new file mode 100644 index 000000000000..72216d078ee1 --- /dev/null +++ b/drivers/crypto/intel/qat/qat_common/adf_gen4_vf_mig.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Copyright(c) 2024 Intel Corporation */ +#ifndef ADF_GEN4_VF_MIG_H_ +#define ADF_GEN4_VF_MIG_H_ + +#include "adf_accel_devices.h" + +void adf_gen4_init_vf_mig_ops(struct qat_migdev_ops *vfmig_ops); + +#endif diff --git a/drivers/crypto/intel/qat/qat_common/qat_mig_dev.c b/drivers/crypto/intel/qat/qat_common/qat_mig_dev.c new file mode 100644 index 000000000000..892c2283a50e --- /dev/null +++ b/drivers/crypto/intel/qat/qat_common/qat_mig_dev.c @@ -0,0 +1,130 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright(c) 2024 Intel Corporation */ +#include <linux/dev_printk.h> +#include <linux/export.h> +#include <linux/pci.h> +#include <linux/types.h> +#include <linux/qat/qat_mig_dev.h> +#include "adf_accel_devices.h" +#include "adf_common_drv.h" + +struct qat_mig_dev *qat_vfmig_create(struct pci_dev *pdev, int vf_id) +{ + struct adf_accel_dev *accel_dev; + struct qat_migdev_ops *ops; + struct qat_mig_dev *mdev; + + accel_dev = adf_devmgr_pci_to_accel_dev(pdev); + if (!accel_dev) + return ERR_PTR(-ENODEV); + + ops = GET_VFMIG_OPS(accel_dev); + if (!ops || !ops->init || !ops->cleanup || !ops->reset || !ops->open || + !ops->close || !ops->suspend || !ops->resume || !ops->save_state || + !ops->load_state || !ops->save_setup || !ops->load_setup) + return ERR_PTR(-EINVAL); + + mdev = kmalloc(sizeof(*mdev), GFP_KERNEL); + if (!mdev) + return ERR_PTR(-ENOMEM); + + mdev->vf_id = vf_id; + mdev->parent_accel_dev = accel_dev; + + return mdev; +} +EXPORT_SYMBOL_GPL(qat_vfmig_create); + +int qat_vfmig_init(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + + return GET_VFMIG_OPS(accel_dev)->init(mdev); +} +EXPORT_SYMBOL_GPL(qat_vfmig_init); + +void qat_vfmig_cleanup(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + + return GET_VFMIG_OPS(accel_dev)->cleanup(mdev); +} +EXPORT_SYMBOL_GPL(qat_vfmig_cleanup); + +void qat_vfmig_reset(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + + return GET_VFMIG_OPS(accel_dev)->reset(mdev); +} +EXPORT_SYMBOL_GPL(qat_vfmig_reset); + +int qat_vfmig_open(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + + return GET_VFMIG_OPS(accel_dev)->open(mdev); +} +EXPORT_SYMBOL_GPL(qat_vfmig_open); + +void qat_vfmig_close(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + + GET_VFMIG_OPS(accel_dev)->close(mdev); +} +EXPORT_SYMBOL_GPL(qat_vfmig_close); + +int qat_vfmig_suspend(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + + return GET_VFMIG_OPS(accel_dev)->suspend(mdev); +} +EXPORT_SYMBOL_GPL(qat_vfmig_suspend); + +int qat_vfmig_resume(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + + return GET_VFMIG_OPS(accel_dev)->resume(mdev); +} +EXPORT_SYMBOL_GPL(qat_vfmig_resume); + +int qat_vfmig_save_state(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + + return GET_VFMIG_OPS(accel_dev)->save_state(mdev); +} +EXPORT_SYMBOL_GPL(qat_vfmig_save_state); + +int qat_vfmig_save_setup(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + + return GET_VFMIG_OPS(accel_dev)->save_setup(mdev); +} +EXPORT_SYMBOL_GPL(qat_vfmig_save_setup); + +int qat_vfmig_load_state(struct qat_mig_dev *mdev) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + + return GET_VFMIG_OPS(accel_dev)->load_state(mdev); +} +EXPORT_SYMBOL_GPL(qat_vfmig_load_state); + +int qat_vfmig_load_setup(struct qat_mig_dev *mdev, int size) +{ + struct adf_accel_dev *accel_dev = mdev->parent_accel_dev; + + return GET_VFMIG_OPS(accel_dev)->load_setup(mdev, size); +} +EXPORT_SYMBOL_GPL(qat_vfmig_load_setup); + +void qat_vfmig_destroy(struct qat_mig_dev *mdev) +{ + kfree(mdev); +} +EXPORT_SYMBOL_GPL(qat_vfmig_destroy); |