@@ -1673,6 +1673,27 @@ static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
}
/**
+ * i40e_del_qch - delete all the additional VSI's created as a part of ADq
+ * @vf: pointer to VF structure
+ **/
+static void i40e_del_qch(struct i40e_vf *vf)
+{
+ struct i40e_pf *pf = vf->pf;
+ int i;
+
+ /* first element in the array belongs to primary VF VSI and we shouldn't
+ * delete it. we should however delete the rest of the VSIs created
+ */
+ for (i = 1; i < vf->num_tc; i++) {
+ if (vf->ch[i].vsi_idx) {
+ i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]);
+ vf->ch[i].vsi_idx = 0;
+ vf->ch[i].vsi_id = 0;
+ }
+ }
+}
+
+/**
* i40e_vc_get_vf_resources_msg
* @vf: pointer to the VF info
* @msg: pointer to the msg buffer
@@ -2979,6 +3000,45 @@ static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
}
/**
+ * i40e_vc_del_qch_msg
+ * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
+ **/
+static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
+{
+ struct i40e_pf *pf = vf->pf;
+ i40e_status aq_ret = 0;
+
+ if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+ aq_ret = I40E_ERR_PARAM;
+ goto err;
+ }
+
+ if (vf->adq_enabled) {
+ i40e_del_qch(vf);
+ vf->adq_enabled = false;
+ vf->num_tc = 0;
+ dev_info(&pf->pdev->dev,
+ "Deleting Queue Channels for ADq on VF %d\n",
+ vf->vf_id);
+ } else {
+ dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n",
+ vf->vf_id);
+ aq_ret = I40E_ERR_PARAM;
+ }
+
+ /* reset the VF in order to allocate resources */
+ i40e_vc_notify_vf_reset(vf);
+ i40e_reset_vf(vf, false);
+
+ return I40E_SUCCESS;
+
+err:
+ return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS,
+ aq_ret);
+}
+
+/**
* i40e_vc_process_vf_msg
* @pf: pointer to the PF structure
* @vf_id: source VF id
@@ -3110,6 +3170,9 @@ int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
case VIRTCHNL_OP_ENABLE_CHANNELS:
ret = i40e_vc_add_qch_msg(vf, msg);
break;
+ case VIRTCHNL_OP_DISABLE_CHANNELS:
+ ret = i40e_vc_del_qch_msg(vf, msg);
+ break;
case VIRTCHNL_OP_UNKNOWN:
default:
dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
This patch takes care of freeing up all the VSIs, queues and other ADq related software and hardware resources, when a user requests for deletion of ADq on VF. Example command: tc qdisc del dev eth0 root Signed-off-by: Avinash Dayanand <avinash.dayanand@intel.com> --- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 63 ++++++++++++++++++++++ 1 file changed, 63 insertions(+)