1 files changed, 66 insertions, 56 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
index 3f1a63815bac..1d9b84c3937a 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
@@ -515,24 +515,6 @@ static void ice_vc_reset_vf_msg(struct ice_vf *vf)
 }
 
 /**
- * ice_find_vsi_from_id
- * @pf: the PF structure to search for the VSI
- * @id: ID of the VSI it is searching for
- *
- * searches for the VSI with the given ID
- */
-static struct ice_vsi *ice_find_vsi_from_id(struct ice_pf *pf, u16 id)
-{
-	int i;
-
-	ice_for_each_vsi(pf, i)
-		if (pf->vsi[i] && pf->vsi[i]->vsi_num == id)
-			return pf->vsi[i];
-
-	return NULL;
-}
-
-/**
  * ice_vc_isvalid_vsi_id
  * @vf: pointer to the VF info
  * @vsi_id: VF relative VSI ID
@@ -544,7 +526,7 @@ bool ice_vc_isvalid_vsi_id(struct ice_vf *vf, u16 vsi_id)
 	struct ice_pf *pf = vf->pf;
 	struct ice_vsi *vsi;
 
-	vsi = ice_find_vsi_from_id(pf, vsi_id);
+	vsi = ice_find_vsi(pf, vsi_id);
 
 	return (vsi && (vsi->vf == vf));
 }
@@ -559,7 +541,7 @@ bool ice_vc_isvalid_vsi_id(struct ice_vf *vf, u16 vsi_id)
  */
 static bool ice_vc_isvalid_q_id(struct ice_vf *vf, u16 vsi_id, u8 qid)
 {
-	struct ice_vsi *vsi = ice_find_vsi_from_id(vf->pf, vsi_id);
+	struct ice_vsi *vsi = ice_find_vsi(vf->pf, vsi_id);
 	/* allocated Tx and Rx queues should be always equal for VF VSI */
 	return (vsi && (qid < vsi->alloc_txq));
 }
@@ -1308,12 +1290,51 @@ error_param:
 }
 
 /**
+ * ice_vf_vsi_dis_single_txq - disable a single Tx queue
+ * @vf: VF to disable queue for
+ * @vsi: VSI for the VF
+ * @q_id: VF relative (0-based) queue ID
+ *
+ * Attempt to disable the Tx queue passed in. If the Tx queue was successfully
+ * disabled then clear q_id bit in the enabled queues bitmap and return
+ * success. Otherwise return error.
+ */
+static int
+ice_vf_vsi_dis_single_txq(struct ice_vf *vf, struct ice_vsi *vsi, u16 q_id)
+{
+	struct ice_txq_meta txq_meta = { 0 };
+	struct ice_tx_ring *ring;
+	int err;
+
+	if (!test_bit(q_id, vf->txq_ena))
+		dev_dbg(ice_pf_to_dev(vsi->back), "Queue %u on VSI %u is not enabled, but stopping it anyway\n",
+			q_id, vsi->vsi_num);
+
+	ring = vsi->tx_rings[q_id];
+	if (!ring)
+		return -EINVAL;
+
+	ice_fill_txq_meta(vsi, ring, &txq_meta);
+
+	err = ice_vsi_stop_tx_ring(vsi, ICE_NO_RESET, vf->vf_id, ring, &txq_meta);
+	if (err) {
+		dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Tx ring %d on VSI %d\n",
+			q_id, vsi->vsi_num);
+		return err;
+	}
+
+	/* Clear enabled queues flag */
+	clear_bit(q_id, vf->txq_ena);
+
+	return 0;
+}
+
+/**
  * ice_vc_dis_qs_msg
  * @vf: pointer to the VF info
  * @msg: pointer to the msg buffer
  *
- * called from the VF to disable all or specific
- * queue(s)
+ * called from the VF to disable all or specific queue(s)
  */
 static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg)
 {
@@ -1350,30 +1371,15 @@ static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg)
 		q_map = vqs->tx_queues;
 
 		for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
-			struct ice_tx_ring *ring = vsi->tx_rings[vf_q_id];
-			struct ice_txq_meta txq_meta = { 0 };
-
 			if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
 				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 				goto error_param;
 			}
 
-			/* Skip queue if not enabled */
-			if (!test_bit(vf_q_id, vf->txq_ena))
-				continue;
-
-			ice_fill_txq_meta(vsi, ring, &txq_meta);
-
-			if (ice_vsi_stop_tx_ring(vsi, ICE_NO_RESET, vf->vf_id,
-						 ring, &txq_meta)) {
-				dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Tx ring %d on VSI %d\n",
-					vf_q_id, vsi->vsi_num);
+			if (ice_vf_vsi_dis_single_txq(vf, vsi, vf_q_id)) {
 				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 				goto error_param;
 			}
-
-			/* Clear enabled queues flag */
-			clear_bit(vf_q_id, vf->txq_ena);
 		}
 	}
 
@@ -1622,6 +1628,14 @@ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
 		if (qpi->txq.ring_len > 0) {
 			vsi->tx_rings[i]->dma = qpi->txq.dma_ring_addr;
 			vsi->tx_rings[i]->count = qpi->txq.ring_len;
+
+			/* Disable any existing queue first */
+			if (ice_vf_vsi_dis_single_txq(vf, vsi, q_idx)) {
+				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+				goto error_param;
+			}
+
+			/* Configure a queue with the requested settings */
 			if (ice_vsi_cfg_single_txq(vsi, vsi->tx_rings, q_idx)) {
 				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 				goto error_param;
@@ -2360,6 +2374,11 @@ static int ice_vc_ena_vlan_stripping(struct ice_vf *vf)
 	}
 
 	vsi = ice_get_vf_vsi(vf);
+	if (!vsi) {
+		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+		goto error_param;
+	}
+
 	if (vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q))
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 
@@ -3625,6 +3644,8 @@ void ice_vc_process_vf_msg(struct ice_pf *pf, struct ice_rq_event_info *event)
 		return;
 	}
 
+	mutex_lock(&vf->cfg_lock);
+
 	/* Check if VF is disabled. */
 	if (test_bit(ICE_VF_STATE_DIS, vf->vf_states)) {
 		err = -EPERM;
@@ -3642,32 +3663,20 @@ void ice_vc_process_vf_msg(struct ice_pf *pf, struct ice_rq_event_info *event)
 			err = -EINVAL;
 	}
 
-	if (!ice_vc_is_opcode_allowed(vf, v_opcode)) {
-		ice_vc_send_msg_to_vf(vf, v_opcode,
-				      VIRTCHNL_STATUS_ERR_NOT_SUPPORTED, NULL,
-				      0);
-		ice_put_vf(vf);
-		return;
-	}
-
 error_handler:
 	if (err) {
 		ice_vc_send_msg_to_vf(vf, v_opcode, VIRTCHNL_STATUS_ERR_PARAM,
 				      NULL, 0);
 		dev_err(dev, "Invalid message from VF %d, opcode %d, len %d, error %d\n",
 			vf_id, v_opcode, msglen, err);
-		ice_put_vf(vf);
-		return;
+		goto finish;
 	}
 
-	/* VF is being configured in another context that triggers a VFR, so no
-	 * need to process this message
-	 */
-	if (!mutex_trylock(&vf->cfg_lock)) {
-		dev_info(dev, "VF %u is being configured in another context that will trigger a VFR, so there is no need to handle this message\n",
-			 vf->vf_id);
-		ice_put_vf(vf);
-		return;
+	if (!ice_vc_is_opcode_allowed(vf, v_opcode)) {
+		ice_vc_send_msg_to_vf(vf, v_opcode,
+				      VIRTCHNL_STATUS_ERR_NOT_SUPPORTED, NULL,
+				      0);
+		goto finish;
 	}
 
 	switch (v_opcode) {
@@ -3780,6 +3789,7 @@ error_handler:
 			 vf_id, v_opcode, err);
 	}
 
+finish:
 	mutex_unlock(&vf->cfg_lock);
 	ice_put_vf(vf);
 }