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| author | Ciunas Bennett <ciunas.bennett@intel.com> | 2023-10-20 15:49:31 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-10-27 18:04:28 +0800 |
| commit | 71fed09b49c168435fc28d57870007495475d946 (patch) | |
| tree | 906bfe7fecba7b9cf1d7474e8ed2ba480560547c /drivers/crypto | |
| parent | dbc8876dd873a6ac5e3191b419d2de5ca613165f (diff) | |
| download | linux-71fed09b49c168435fc28d57870007495475d946.tar.gz | |
crypto: qat - add num_rps sysfs attribute
Add the attribute `num_rps` to the `qat` attribute group. This returns
the number of ring pairs that a single device has. This allows to know
the maximum value that can be set to the attribute `rp2svc`.
Signed-off-by: Ciunas Bennett <ciunas.bennett@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Damian Muszynski <damian.muszynski@intel.com>
Reviewed-by: Tero Kristo <tero.kristo@linux.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/adf_sysfs.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/crypto/intel/qat/qat_common/adf_sysfs.c b/drivers/crypto/intel/qat/qat_common/adf_sysfs.c index 9317127128a9f4..ddffc98119c6b8 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, }; |