From c7fd53796dbd09c3ef55032925bc7f8f238f9405 Mon Sep 17 00:00:00 2001 From: Damian Muszynski Date: Fri, 20 Oct 2023 15:49:27 +0200 Subject: crypto: qat - add retrieval of fw capabilities The QAT firmware provides a mechanism to retrieve its capabilities through the init admin interface. Add logic to retrieve the firmware capability mask from the firmware through the init/admin channel. This mask reports if the power management, telemetry and rate limiting features are supported. The fw capabilities are stored in the accel_dev structure and are used to detect if a certain feature is supported by the firmware loaded in the device. This is supported only by devices which have an admin AE. Signed-off-by: Damian Muszynski Reviewed-by: Giovanni Cabiddu Reviewed-by: Tero Kristo Signed-off-by: Herbert Xu --- .../intel/qat/qat_common/adf_accel_devices.h | 1 + drivers/crypto/intel/qat/qat_common/adf_admin.c | 23 ++++++++++++++++++++++ .../intel/qat/qat_common/icp_qat_fw_init_admin.h | 3 +++ 3 files changed, 27 insertions(+) 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 1c11d90bd9f3..908959288ce5 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h +++ b/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h @@ -253,6 +253,7 @@ struct adf_hw_device_data { u32 straps; u32 accel_capabilities_mask; u32 extended_dc_capabilities; + u16 fw_capabilities; u32 clock_frequency; u32 instance_id; u16 accel_mask; diff --git a/drivers/crypto/intel/qat/qat_common/adf_admin.c b/drivers/crypto/intel/qat/qat_common/adf_admin.c index 15ffda582334..50e054ba2c33 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_admin.c +++ b/drivers/crypto/intel/qat/qat_common/adf_admin.c @@ -310,6 +310,26 @@ static bool is_dcc_enabled(struct adf_accel_dev *accel_dev) return !strcmp(services, "dcc"); } +static int adf_get_fw_capabilities(struct adf_accel_dev *accel_dev, u16 *caps) +{ + u32 ae_mask = accel_dev->hw_device->admin_ae_mask; + struct icp_qat_fw_init_admin_resp resp = { }; + struct icp_qat_fw_init_admin_req req = { }; + int ret; + + if (!ae_mask) + return 0; + + req.cmd_id = ICP_QAT_FW_CAPABILITIES_GET; + ret = adf_send_admin(accel_dev, &req, &resp, ae_mask); + if (ret) + return ret; + + *caps = resp.fw_capabilities; + + return 0; +} + /** * adf_send_admin_init() - Function sends init message to FW * @accel_dev: Pointer to acceleration device. @@ -320,6 +340,7 @@ static bool is_dcc_enabled(struct adf_accel_dev *accel_dev) */ int adf_send_admin_init(struct adf_accel_dev *accel_dev) { + struct adf_hw_device_data *hw_data = GET_HW_DATA(accel_dev); u32 dc_capabilities = 0; int ret; @@ -340,6 +361,8 @@ int adf_send_admin_init(struct adf_accel_dev *accel_dev) } accel_dev->hw_device->extended_dc_capabilities = dc_capabilities; + adf_get_fw_capabilities(accel_dev, &hw_data->fw_capabilities); + return adf_init_ae(accel_dev); } EXPORT_SYMBOL_GPL(adf_send_admin_init); diff --git a/drivers/crypto/intel/qat/qat_common/icp_qat_fw_init_admin.h b/drivers/crypto/intel/qat/qat_common/icp_qat_fw_init_admin.h index 9e5ce419d875..e4de9a30e0bd 100644 --- a/drivers/crypto/intel/qat/qat_common/icp_qat_fw_init_admin.h +++ b/drivers/crypto/intel/qat/qat_common/icp_qat_fw_init_admin.h @@ -16,6 +16,7 @@ enum icp_qat_fw_init_admin_cmd_id { ICP_QAT_FW_HEARTBEAT_SYNC = 7, ICP_QAT_FW_HEARTBEAT_GET = 8, ICP_QAT_FW_COMP_CAPABILITY_GET = 9, + ICP_QAT_FW_CRYPTO_CAPABILITY_GET = 10, ICP_QAT_FW_DC_CHAIN_INIT = 11, ICP_QAT_FW_HEARTBEAT_TIMER_SET = 13, ICP_QAT_FW_TIMER_GET = 19, @@ -109,10 +110,12 @@ struct icp_qat_fw_init_admin_resp { __u32 unsuccessful_count; __u64 resrvd8; }; + __u16 fw_capabilities; }; } __packed; #define ICP_QAT_FW_SYNC ICP_QAT_FW_HEARTBEAT_SYNC +#define ICP_QAT_FW_CAPABILITIES_GET ICP_QAT_FW_CRYPTO_CAPABILITY_GET #define ICP_QAT_NUMBER_OF_PM_EVENTS 8 -- cgit v1.2.3