diff options
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-qat | 14 | ||||
| -rw-r--r-- | drivers/crypto/intel/qat/qat_common/adf_sysfs.c | 14 |
2 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-qat b/Documentation/ABI/testing/sysfs-driver-qat index f24a5ddca94b..bbf329cf0d67 100644 --- a/Documentation/ABI/testing/sysfs-driver-qat +++ b/Documentation/ABI/testing/sysfs-driver-qat @@ -127,3 +127,17 @@ Description: sym This attribute is only available for qat_4xxx devices. + +What: /sys/bus/pci/devices/<BDF>/qat/num_rps +Date: January 2024 +KernelVersion: 6.7 +Contact: qat-linux@intel.com +Description: + (RO) Returns the number of ring pairs that a single device has. + + Example usage:: + + # cat /sys/bus/pci/devices/<BDF>/qat/num_rps + 64 + + This attribute is only available for qat_4xxx devices. diff --git a/drivers/crypto/intel/qat/qat_common/adf_sysfs.c b/drivers/crypto/intel/qat/qat_common/adf_sysfs.c index 9317127128a9..ddffc98119c6 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_sysfs.c +++ b/drivers/crypto/intel/qat/qat_common/adf_sysfs.c @@ -268,11 +268,25 @@ static ssize_t rp2srv_store(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR_RW(rp2srv); +static ssize_t num_rps_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct adf_accel_dev *accel_dev; + + accel_dev = adf_devmgr_pci_to_accel_dev(to_pci_dev(dev)); + if (!accel_dev) + return -EINVAL; + + return sysfs_emit(buf, "%u\n", GET_MAX_BANKS(accel_dev)); +} +static DEVICE_ATTR_RO(num_rps); + static struct attribute *qat_attrs[] = { &dev_attr_state.attr, &dev_attr_cfg_services.attr, &dev_attr_pm_idle_enabled.attr, &dev_attr_rp2srv.attr, + &dev_attr_num_rps.attr, NULL, }; |