diff options
Diffstat (limited to 'drivers/crypto')
-rw-r--r-- | drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c | 1 | ||||
-rw-r--r-- | drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.h | 1 | ||||
-rw-r--r-- | drivers/crypto/qat/qat_4xxx/adf_drv.c | 6 | ||||
-rw-r--r-- | drivers/crypto/qat/qat_common/Makefile | 1 | ||||
-rw-r--r-- | drivers/crypto/qat/qat_common/adf_accel_devices.h | 1 | ||||
-rw-r--r-- | drivers/crypto/qat/qat_common/adf_common_drv.h | 2 | ||||
-rw-r--r-- | drivers/crypto/qat/qat_common/adf_sysfs.c | 119 |
7 files changed, 130 insertions, 1 deletions
diff --git a/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c b/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c index fb5970a68484..fda5f699ff57 100644 --- a/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c +++ b/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c @@ -357,6 +357,7 @@ void adf_init_hw_data_4xxx(struct adf_hw_device_data *hw_data) hw_data->ring_pair_reset = adf_gen4_ring_pair_reset; hw_data->enable_pm = adf_gen4_enable_pm; hw_data->handle_pm_interrupt = adf_gen4_handle_pm_interrupt; + hw_data->dev_config = adf_crypto_dev_config; adf_gen4_init_hw_csr_ops(&hw_data->csr_ops); adf_gen4_init_pf_pfvf_ops(&hw_data->pfvf_ops); diff --git a/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.h b/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.h index 1034752845ca..9d49248931f6 100644 --- a/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.h +++ b/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.h @@ -70,5 +70,6 @@ enum icp_qat_4xxx_slice_mask { void adf_init_hw_data_4xxx(struct adf_hw_device_data *hw_data); void adf_clean_hw_data_4xxx(struct adf_hw_device_data *hw_data); +int adf_crypto_dev_config(struct adf_accel_dev *accel_dev); #endif diff --git a/drivers/crypto/qat/qat_4xxx/adf_drv.c b/drivers/crypto/qat/qat_4xxx/adf_drv.c index 181fa1c8b3c7..2f212561acc4 100644 --- a/drivers/crypto/qat/qat_4xxx/adf_drv.c +++ b/drivers/crypto/qat/qat_4xxx/adf_drv.c @@ -53,7 +53,7 @@ static int adf_cfg_dev_init(struct adf_accel_dev *accel_dev) return 0; } -static int adf_crypto_dev_config(struct adf_accel_dev *accel_dev) +int adf_crypto_dev_config(struct adf_accel_dev *accel_dev) { char key[ADF_CFG_MAX_KEY_LEN_IN_BYTES]; int banks = GET_MAX_BANKS(accel_dev); @@ -289,6 +289,10 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto out_err_disable_aer; } + ret = adf_sysfs_init(accel_dev); + if (ret) + goto out_err_disable_aer; + ret = adf_crypto_dev_config(accel_dev); if (ret) goto out_err_disable_aer; diff --git a/drivers/crypto/qat/qat_common/Makefile b/drivers/crypto/qat/qat_common/Makefile index 04f058acc4d3..80919cfcc29d 100644 --- a/drivers/crypto/qat/qat_common/Makefile +++ b/drivers/crypto/qat/qat_common/Makefile @@ -10,6 +10,7 @@ intel_qat-objs := adf_cfg.o \ adf_transport.o \ adf_admin.o \ adf_hw_arbiter.o \ + adf_sysfs.o \ adf_gen2_hw_data.o \ adf_gen4_hw_data.o \ adf_gen4_pm.o \ diff --git a/drivers/crypto/qat/qat_common/adf_accel_devices.h b/drivers/crypto/qat/qat_common/adf_accel_devices.h index ede6458c9dbf..0a55a4f34dcf 100644 --- a/drivers/crypto/qat/qat_common/adf_accel_devices.h +++ b/drivers/crypto/qat/qat_common/adf_accel_devices.h @@ -199,6 +199,7 @@ struct adf_hw_device_data { char *(*uof_get_name)(struct adf_accel_dev *accel_dev, u32 obj_num); u32 (*uof_get_num_objs)(void); u32 (*uof_get_ae_mask)(struct adf_accel_dev *accel_dev, u32 obj_num); + int (*dev_config)(struct adf_accel_dev *accel_dev); struct adf_pfvf_ops pfvf_ops; struct adf_hw_csr_ops csr_ops; const char *fw_name; diff --git a/drivers/crypto/qat/qat_common/adf_common_drv.h b/drivers/crypto/qat/qat_common/adf_common_drv.h index b364bc06c732..b841e85c8f5d 100644 --- a/drivers/crypto/qat/qat_common/adf_common_drv.h +++ b/drivers/crypto/qat/qat_common/adf_common_drv.h @@ -127,6 +127,8 @@ void adf_vf_isr_resource_free(struct adf_accel_dev *accel_dev); int adf_pfvf_comms_disabled(struct adf_accel_dev *accel_dev); +int adf_sysfs_init(struct adf_accel_dev *accel_dev); + int qat_hal_init(struct adf_accel_dev *accel_dev); void qat_hal_deinit(struct icp_qat_fw_loader_handle *handle); int qat_hal_start(struct icp_qat_fw_loader_handle *handle); diff --git a/drivers/crypto/qat/qat_common/adf_sysfs.c b/drivers/crypto/qat/qat_common/adf_sysfs.c new file mode 100644 index 000000000000..8f47a5694dd7 --- /dev/null +++ b/drivers/crypto/qat/qat_common/adf_sysfs.c @@ -0,0 +1,119 @@ +// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) +/* Copyright(c) 2022 Intel Corporation */ +#include <linux/device.h> +#include <linux/errno.h> +#include <linux/pci.h> +#include "adf_accel_devices.h" +#include "adf_cfg.h" +#include "adf_common_drv.h" + +static const char * const state_operations[] = { + [DEV_DOWN] = "down", + [DEV_UP] = "up", +}; + +static ssize_t state_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct adf_accel_dev *accel_dev; + char *state; + + accel_dev = adf_devmgr_pci_to_accel_dev(to_pci_dev(dev)); + if (!accel_dev) + return -EINVAL; + + state = adf_dev_started(accel_dev) ? "up" : "down"; + return sysfs_emit(buf, "%s\n", state); +} + +static ssize_t state_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct adf_accel_dev *accel_dev; + u32 accel_id; + int ret; + + accel_dev = adf_devmgr_pci_to_accel_dev(to_pci_dev(dev)); + if (!accel_dev) + return -EINVAL; + + accel_id = accel_dev->accel_id; + + if (adf_devmgr_in_reset(accel_dev) || adf_dev_in_use(accel_dev)) { + dev_info(dev, "Device qat_dev%d is busy\n", accel_id); + return -EBUSY; + } + + ret = sysfs_match_string(state_operations, buf); + if (ret < 0) + return ret; + + switch (ret) { + case DEV_DOWN: + if (!adf_dev_started(accel_dev)) { + dev_info(dev, "Device qat_dev%d already down\n", + accel_id); + return -EINVAL; + } + + dev_info(dev, "Stopping device qat_dev%d\n", accel_id); + + adf_dev_stop(accel_dev); + adf_dev_shutdown(accel_dev); + + break; + case DEV_UP: + if (adf_dev_started(accel_dev)) { + dev_info(dev, "Device qat_dev%d already up\n", + accel_id); + return -EINVAL; + } + + dev_info(dev, "Starting device qat_dev%d\n", accel_id); + + ret = GET_HW_DATA(accel_dev)->dev_config(accel_dev); + if (!ret) + ret = adf_dev_init(accel_dev); + if (!ret) + ret = adf_dev_start(accel_dev); + + if (ret < 0) { + dev_err(dev, "Failed to start device qat_dev%d\n", + accel_id); + adf_dev_stop(accel_dev); + adf_dev_shutdown(accel_dev); + return ret; + } + break; + default: + return -EINVAL; + } + + return count; +} + +static DEVICE_ATTR_RW(state); + +static struct attribute *qat_attrs[] = { + &dev_attr_state.attr, + NULL, +}; + +static struct attribute_group qat_group = { + .attrs = qat_attrs, + .name = "qat", +}; + +int adf_sysfs_init(struct adf_accel_dev *accel_dev) +{ + int ret; + + ret = devm_device_add_group(&GET_DEV(accel_dev), &qat_group); + if (ret) { + dev_err(&GET_DEV(accel_dev), + "Failed to create qat attribute group: %d\n", ret); + } + + return ret; +} +EXPORT_SYMBOL_GPL(adf_sysfs_init); |