diff options
Diffstat (limited to 'drivers/crypto/qat/qat_common/adf_pfvf_vf_msg.c')
| -rw-r--r-- | drivers/crypto/qat/qat_common/adf_pfvf_vf_msg.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_pfvf_vf_msg.c b/drivers/crypto/qat/qat_common/adf_pfvf_vf_msg.c index 7969a644e24b..d5cccec03a3b 100644 --- a/drivers/crypto/qat/qat_common/adf_pfvf_vf_msg.c +++ b/drivers/crypto/qat/qat_common/adf_pfvf_vf_msg.c @@ -52,7 +52,10 @@ EXPORT_SYMBOL_GPL(adf_vf2pf_notify_shutdown); int adf_vf2pf_request_version(struct adf_accel_dev *accel_dev) { struct adf_hw_device_data *hw_data = accel_dev->hw_device; + u8 pf_version; u32 msg = 0; + int compat; + u32 resp; int ret; msg = ADF_VF2PF_MSGORIGIN_SYSTEM; @@ -60,34 +63,38 @@ int adf_vf2pf_request_version(struct adf_accel_dev *accel_dev) msg |= ADF_PFVF_COMPAT_THIS_VERSION << ADF_VF2PF_COMPAT_VER_REQ_SHIFT; BUILD_BUG_ON(ADF_PFVF_COMPAT_THIS_VERSION > 255); - ret = adf_send_vf2pf_req(accel_dev, msg); + ret = adf_send_vf2pf_req(accel_dev, msg, &resp); if (ret) { dev_err(&GET_DEV(accel_dev), "Failed to send Compatibility Version Request.\n"); return ret; } + pf_version = (resp & ADF_PF2VF_VERSION_RESP_VERS_MASK) + >> ADF_PF2VF_VERSION_RESP_VERS_SHIFT; + compat = (resp & ADF_PF2VF_VERSION_RESP_RESULT_MASK) + >> ADF_PF2VF_VERSION_RESP_RESULT_SHIFT; + /* Response from PF received, check compatibility */ - switch (accel_dev->vf.compatible) { + switch (compat) { case ADF_PF2VF_VF_COMPATIBLE: break; case ADF_PF2VF_VF_COMPAT_UNKNOWN: /* VF is newer than PF and decides whether it is compatible */ - if (accel_dev->vf.pf_version >= hw_data->min_iov_compat_ver) { - accel_dev->vf.compatible = ADF_PF2VF_VF_COMPATIBLE; + if (pf_version >= hw_data->min_iov_compat_ver) break; - } fallthrough; case ADF_PF2VF_VF_INCOMPATIBLE: dev_err(&GET_DEV(accel_dev), "PF (vers %d) and VF (vers %d) are not compatible\n", - accel_dev->vf.pf_version, - ADF_PFVF_COMPAT_THIS_VERSION); + pf_version, ADF_PFVF_COMPAT_THIS_VERSION); return -EINVAL; default: dev_err(&GET_DEV(accel_dev), "Invalid response from PF; assume not compatible\n"); return -EINVAL; } - return ret; + + accel_dev->vf.pf_version = pf_version; + return 0; } |