X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fvdpa%2Fmlx5%2Fmlx5_vdpa_virtq.c;h=f530646058fa16e86df0a10ae2f099e2d49febd0;hb=4ad8bc2fc7857a92aa0bb147529859358c5acc4f;hp=bd48460b5bedbbee1ea4aadfe79c95edc6061c26;hpb=9f09b1ca15c57ecdd6af793ec7ca776d7cb2e313;p=dpdk.git

diff --git a/drivers/vdpa/mlx5/mlx5_vdpa_virtq.c b/drivers/vdpa/mlx5/mlx5_vdpa_virtq.c
index bd48460b5b..f530646058 100644
--- a/drivers/vdpa/mlx5/mlx5_vdpa_virtq.c
+++ b/drivers/vdpa/mlx5/mlx5_vdpa_virtq.c
@@ -36,6 +36,17 @@ mlx5_vdpa_virtq_handler(void *cb_arg)
 		break;
 	} while (1);
 	rte_write32(virtq->index, priv->virtq_db_addr);
+	if (virtq->notifier_state == MLX5_VDPA_NOTIFIER_STATE_DISABLED) {
+		if (rte_vhost_host_notifier_ctrl(priv->vid, virtq->index, true))
+			virtq->notifier_state = MLX5_VDPA_NOTIFIER_STATE_ERR;
+		else
+			virtq->notifier_state =
+					       MLX5_VDPA_NOTIFIER_STATE_ENABLED;
+		DRV_LOG(INFO, "Virtq %u notifier state is %s.", virtq->index,
+			virtq->notifier_state ==
+				MLX5_VDPA_NOTIFIER_STATE_ENABLED ? "enabled" :
+								    "disabled");
+	}
 	DRV_LOG(DEBUG, "Ring virtq %u doorbell.", virtq->index);
 }
 
@@ -61,8 +72,13 @@ mlx5_vdpa_virtq_unset(struct mlx5_vdpa_virtq *virtq)
 		}
 		virtq->intr_handle.fd = -1;
 	}
-	if (virtq->virtq)
+	if (virtq->virtq) {
+		ret = mlx5_vdpa_virtq_stop(virtq->priv, virtq->index);
+		if (ret)
+			DRV_LOG(WARNING, "Failed to stop virtq %d.",
+				virtq->index);
 		claim_zero(mlx5_devx_cmd_destroy(virtq->virtq));
+	}
 	virtq->virtq = NULL;
 	for (i = 0; i < RTE_DIM(virtq->umems); ++i) {
 		if (virtq->umems[i].obj)
@@ -74,6 +90,7 @@ mlx5_vdpa_virtq_unset(struct mlx5_vdpa_virtq *virtq)
 	memset(&virtq->umems, 0, sizeof(virtq->umems));
 	if (virtq->eqp.fw_qp)
 		mlx5_vdpa_event_qp_destroy(&virtq->eqp);
+	virtq->notifier_state = MLX5_VDPA_NOTIFIER_STATE_DISABLED;
 	return 0;
 }
 
@@ -81,14 +98,19 @@ void
 mlx5_vdpa_virtqs_release(struct mlx5_vdpa_priv *priv)
 {
 	int i;
+	struct mlx5_vdpa_virtq *virtq;
 
 	for (i = 0; i < priv->nr_virtqs; i++) {
-		mlx5_vdpa_virtq_unset(&priv->virtqs[i]);
-		priv->virtqs[i].enable = 0;
+		virtq = &priv->virtqs[i];
+		mlx5_vdpa_virtq_unset(virtq);
+		if (virtq->counters)
+			claim_zero(mlx5_devx_cmd_destroy(virtq->counters));
 	}
-	if (priv->tis) {
-		claim_zero(mlx5_devx_cmd_destroy(priv->tis));
-		priv->tis = NULL;
+	for (i = 0; i < priv->num_lag_ports; i++) {
+		if (priv->tiss[i]) {
+			claim_zero(mlx5_devx_cmd_destroy(priv->tiss[i]));
+			priv->tiss[i] = NULL;
+		}
 	}
 	if (priv->td) {
 		claim_zero(mlx5_devx_cmd_destroy(priv->td));
@@ -99,6 +121,7 @@ mlx5_vdpa_virtqs_release(struct mlx5_vdpa_priv *priv)
 		priv->virtq_db_addr = NULL;
 	}
 	priv->features = 0;
+	memset(priv->virtqs, 0, sizeof(*virtq) * priv->nr_virtqs);
 	priv->nr_virtqs = 0;
 }
 
@@ -118,12 +141,26 @@ mlx5_vdpa_virtq_modify(struct mlx5_vdpa_virtq *virtq, int state)
 int
 mlx5_vdpa_virtq_stop(struct mlx5_vdpa_priv *priv, int index)
 {
-	struct mlx5_devx_virtq_attr attr = {0};
 	struct mlx5_vdpa_virtq *virtq = &priv->virtqs[index];
-	int ret = mlx5_vdpa_virtq_modify(virtq, 0);
+	int ret;
 
+	if (virtq->stopped)
+		return 0;
+	ret = mlx5_vdpa_virtq_modify(virtq, 0);
 	if (ret)
 		return -1;
+	virtq->stopped = true;
+	DRV_LOG(DEBUG, "vid %u virtq %u was stopped.", priv->vid, index);
+	return mlx5_vdpa_virtq_query(priv, index);
+}
+
+int
+mlx5_vdpa_virtq_query(struct mlx5_vdpa_priv *priv, int index)
+{
+	struct mlx5_devx_virtq_attr attr = {0};
+	struct mlx5_vdpa_virtq *virtq = &priv->virtqs[index];
+	int ret;
+
 	if (mlx5_devx_cmd_query_virtq(virtq->virtq, &attr)) {
 		DRV_LOG(ERR, "Failed to query virtq %d.", index);
 		return -1;
@@ -138,6 +175,9 @@ mlx5_vdpa_virtq_stop(struct mlx5_vdpa_priv *priv, int index)
 		DRV_LOG(ERR, "Failed to set virtq %d base.", index);
 		return -1;
 	}
+	if (attr.state == MLX5_VIRTQ_STATE_ERROR)
+		DRV_LOG(WARNING, "vid %d vring %d hw error=%hhu",
+			priv->vid, index, attr.error_type);
 	return 0;
 }
 
@@ -170,6 +210,8 @@ mlx5_vdpa_virtq_setup(struct mlx5_vdpa_priv *priv, int index)
 	unsigned int i;
 	uint16_t last_avail_idx;
 	uint16_t last_used_idx;
+	uint16_t event_num = MLX5_EVENT_TYPE_OBJECT_CHANGE;
+	uint64_t cookie;
 
 	ret = rte_vhost_get_vhost_vring(priv->vid, index, &vq);
 	if (ret)
@@ -205,6 +247,17 @@ mlx5_vdpa_virtq_setup(struct mlx5_vdpa_priv *priv, int index)
 		DRV_LOG(INFO, "Virtq %d is, for sure, working by poll mode, no"
 			" need event QPs and event mechanism.", index);
 	}
+	if (priv->caps.queue_counters_valid) {
+		if (!virtq->counters)
+			virtq->counters = mlx5_devx_cmd_create_virtio_q_counters
+								(priv->ctx);
+		if (!virtq->counters) {
+			DRV_LOG(ERR, "Failed to create virtq couners for virtq"
+				" %d.", index);
+			goto error;
+		}
+		attr.counters_obj_id = virtq->counters->id;
+	}
 	/* Setup 3 UMEMs for each virtq. */
 	for (i = 0; i < RTE_DIM(virtq->umems); ++i) {
 		virtq->umems[i].size = priv->caps.umems[i].a * vq.size +
@@ -267,12 +320,17 @@ mlx5_vdpa_virtq_setup(struct mlx5_vdpa_priv *priv, int index)
 	attr.hw_used_index = last_used_idx;
 	attr.q_size = vq.size;
 	attr.mkey = priv->gpa_mkey_index;
-	attr.tis_id = priv->tis->id;
+	attr.tis_id = priv->tiss[(index / 2) % priv->num_lag_ports]->id;
 	attr.queue_index = index;
+	attr.pd = priv->pdn;
+	attr.hw_latency_mode = priv->hw_latency_mode;
+	attr.hw_max_latency_us = priv->hw_max_latency_us;
+	attr.hw_max_pending_comp = priv->hw_max_pending_comp;
 	virtq->virtq = mlx5_devx_cmd_create_virtq(priv->ctx, &attr);
 	virtq->priv = priv;
 	if (!virtq->virtq)
 		goto error;
+	claim_zero(rte_vhost_enable_guest_notification(priv->vid, index, 1));
 	if (mlx5_vdpa_virtq_modify(virtq, 1))
 		goto error;
 	virtq->priv = priv;
@@ -281,10 +339,6 @@ mlx5_vdpa_virtq_setup(struct mlx5_vdpa_priv *priv, int index)
 	virtq->intr_handle.fd = vq.kickfd;
 	if (virtq->intr_handle.fd == -1) {
 		DRV_LOG(WARNING, "Virtq %d kickfd is invalid.", index);
-		if (!priv->direct_notifier) {
-			DRV_LOG(ERR, "Virtq %d cannot be notified.", index);
-			goto error;
-		}
 	} else {
 		virtq->intr_handle.type = RTE_INTR_HANDLE_EXT;
 		if (rte_intr_callback_register(&virtq->intr_handle,
@@ -299,6 +353,22 @@ mlx5_vdpa_virtq_setup(struct mlx5_vdpa_priv *priv, int index)
 				virtq->intr_handle.fd, index);
 		}
 	}
+	/* Subscribe virtq error event. */
+	virtq->version++;
+	cookie = ((uint64_t)virtq->version << 32) + index;
+	ret = mlx5_glue->devx_subscribe_devx_event(priv->err_chnl,
+						   virtq->virtq->obj,
+						   sizeof(event_num),
+						   &event_num, cookie);
+	if (ret) {
+		DRV_LOG(ERR, "Failed to subscribe device %d virtq %d error event.",
+			priv->vid, index);
+		rte_errno = errno;
+		goto error;
+	}
+	virtq->stopped = false;
+	DRV_LOG(DEBUG, "vid %u virtq %u was created successfully.", priv->vid,
+		index);
 	return 0;
 error:
 	mlx5_vdpa_virtq_unset(virtq);
@@ -372,6 +442,13 @@ mlx5_vdpa_virtqs_prepare(struct mlx5_vdpa_priv *priv)
 		DRV_LOG(ERR, "Failed to configure negotiated features.");
 		return -1;
 	}
+	if ((priv->features & (1ULL << VIRTIO_NET_F_CSUM)) == 0 &&
+	    ((priv->features & (1ULL << VIRTIO_NET_F_HOST_TSO4)) > 0 ||
+	     (priv->features & (1ULL << VIRTIO_NET_F_HOST_TSO6)) > 0)) {
+		/* Packet may be corrupted if TSO is enabled without CSUM. */
+		DRV_LOG(INFO, "TSO is enabled without CSUM, force CSUM.");
+		priv->features |= (1ULL << VIRTIO_NET_F_CSUM);
+	}
 	if (nr_vring > priv->caps.max_num_virtio_queues * 2) {
 		DRV_LOG(ERR, "Do not support more than %d virtqs(%d).",
 			(int)priv->caps.max_num_virtio_queues * 2,
@@ -396,24 +473,45 @@ mlx5_vdpa_virtqs_prepare(struct mlx5_vdpa_priv *priv)
 		return -rte_errno;
 	}
 	tis_attr.transport_domain = priv->td->id;
-	priv->tis = mlx5_devx_cmd_create_tis(priv->ctx, &tis_attr);
-	if (!priv->tis) {
-		DRV_LOG(ERR, "Failed to create TIS.");
-		goto error;
+	for (i = 0; i < priv->num_lag_ports; i++) {
+		/* 0 is auto affinity, non-zero value to propose port. */
+		tis_attr.lag_tx_port_affinity = i + 1;
+		priv->tiss[i] = mlx5_devx_cmd_create_tis(priv->ctx, &tis_attr);
+		if (!priv->tiss[i]) {
+			DRV_LOG(ERR, "Failed to create TIS %u.", i);
+			goto error;
+		}
 	}
 	priv->nr_virtqs = nr_vring;
-	for (i = 0; i < nr_vring; i++) {
-		claim_zero(rte_vhost_enable_guest_notification(priv->vid, i,
-							       1));
-		if (mlx5_vdpa_virtq_setup(priv, i))
+	for (i = 0; i < nr_vring; i++)
+		if (priv->virtqs[i].enable && mlx5_vdpa_virtq_setup(priv, i))
 			goto error;
-	}
 	return 0;
 error:
 	mlx5_vdpa_virtqs_release(priv);
 	return -1;
 }
 
+static int
+mlx5_vdpa_virtq_is_modified(struct mlx5_vdpa_priv *priv,
+			    struct mlx5_vdpa_virtq *virtq)
+{
+	struct rte_vhost_vring vq;
+	int ret = rte_vhost_get_vhost_vring(priv->vid, virtq->index, &vq);
+
+	if (ret)
+		return -1;
+	if (vq.size != virtq->vq_size || vq.kickfd != virtq->intr_handle.fd)
+		return 1;
+	if (virtq->eqp.cq.cq_obj.cq) {
+		if (vq.callfd != virtq->eqp.cq.callfd)
+			return 1;
+	} else if (vq.callfd != -1) {
+		return 1;
+	}
+	return 0;
+}
+
 int
 mlx5_vdpa_virtq_enable(struct mlx5_vdpa_priv *priv, int index, int enable)
 {
@@ -422,36 +520,122 @@ mlx5_vdpa_virtq_enable(struct mlx5_vdpa_priv *priv, int index, int enable)
 
 	DRV_LOG(INFO, "Update virtq %d status %sable -> %sable.", index,
 		virtq->enable ? "en" : "dis", enable ? "en" : "dis");
-	if (virtq->enable == !!enable)
-		return 0;
 	if (!priv->configured) {
 		virtq->enable = !!enable;
 		return 0;
 	}
-	if (enable) {
-		/* Configuration might have been updated - reconfigure virtq. */
-		if (virtq->virtq) {
-			ret = mlx5_vdpa_virtq_stop(priv, index);
+	if (virtq->enable == !!enable) {
+		if (!enable)
+			return 0;
+		ret = mlx5_vdpa_virtq_is_modified(priv, virtq);
+		if (ret < 0) {
+			DRV_LOG(ERR, "Virtq %d modify check failed.", index);
+			return -1;
+		}
+		if (ret == 0)
+			return 0;
+		DRV_LOG(INFO, "Virtq %d was modified, recreate it.", index);
+	}
+	if (virtq->virtq) {
+		virtq->enable = 0;
+		if (is_virtq_recvq(virtq->index, priv->nr_virtqs)) {
+			ret = mlx5_vdpa_steer_update(priv);
 			if (ret)
-				DRV_LOG(WARNING, "Failed to stop virtq %d.",
-					index);
-			mlx5_vdpa_virtq_unset(virtq);
+				DRV_LOG(WARNING, "Failed to disable steering "
+					"for virtq %d.", index);
 		}
+		mlx5_vdpa_virtq_unset(virtq);
+	}
+	if (enable) {
 		ret = mlx5_vdpa_virtq_setup(priv, index);
 		if (ret) {
 			DRV_LOG(ERR, "Failed to setup virtq %d.", index);
 			return ret;
-			/* The only case virtq can stay invalid. */
 		}
-	}
-	virtq->enable = !!enable;
-	if (is_virtq_recvq(virtq->index, priv->nr_virtqs)) {
-		/* Need to add received virtq to the RQT table of the TIRs. */
-		ret = mlx5_vdpa_steer_update(priv);
-		if (ret) {
-			virtq->enable = !enable;
-			return ret;
+		virtq->enable = 1;
+		if (is_virtq_recvq(virtq->index, priv->nr_virtqs)) {
+			ret = mlx5_vdpa_steer_update(priv);
+			if (ret)
+				DRV_LOG(WARNING, "Failed to enable steering "
+					"for virtq %d.", index);
 		}
 	}
 	return 0;
 }
+
+int
+mlx5_vdpa_virtq_stats_get(struct mlx5_vdpa_priv *priv, int qid,
+			  struct rte_vdpa_stat *stats, unsigned int n)
+{
+	struct mlx5_vdpa_virtq *virtq = &priv->virtqs[qid];
+	struct mlx5_devx_virtio_q_couners_attr attr = {0};
+	int ret;
+
+	if (!virtq->counters) {
+		DRV_LOG(ERR, "Failed to read virtq %d statistics - virtq "
+			"is invalid.", qid);
+		return -EINVAL;
+	}
+	ret = mlx5_devx_cmd_query_virtio_q_counters(virtq->counters, &attr);
+	if (ret) {
+		DRV_LOG(ERR, "Failed to read virtq %d stats from HW.", qid);
+		return ret;
+	}
+	ret = (int)RTE_MIN(n, (unsigned int)MLX5_VDPA_STATS_MAX);
+	if (ret == MLX5_VDPA_STATS_RECEIVED_DESCRIPTORS)
+		return ret;
+	stats[MLX5_VDPA_STATS_RECEIVED_DESCRIPTORS] = (struct rte_vdpa_stat) {
+		.id = MLX5_VDPA_STATS_RECEIVED_DESCRIPTORS,
+		.value = attr.received_desc - virtq->reset.received_desc,
+	};
+	if (ret == MLX5_VDPA_STATS_COMPLETED_DESCRIPTORS)
+		return ret;
+	stats[MLX5_VDPA_STATS_COMPLETED_DESCRIPTORS] = (struct rte_vdpa_stat) {
+		.id = MLX5_VDPA_STATS_COMPLETED_DESCRIPTORS,
+		.value = attr.completed_desc - virtq->reset.completed_desc,
+	};
+	if (ret == MLX5_VDPA_STATS_BAD_DESCRIPTOR_ERRORS)
+		return ret;
+	stats[MLX5_VDPA_STATS_BAD_DESCRIPTOR_ERRORS] = (struct rte_vdpa_stat) {
+		.id = MLX5_VDPA_STATS_BAD_DESCRIPTOR_ERRORS,
+		.value = attr.bad_desc_errors - virtq->reset.bad_desc_errors,
+	};
+	if (ret == MLX5_VDPA_STATS_EXCEED_MAX_CHAIN)
+		return ret;
+	stats[MLX5_VDPA_STATS_EXCEED_MAX_CHAIN] = (struct rte_vdpa_stat) {
+		.id = MLX5_VDPA_STATS_EXCEED_MAX_CHAIN,
+		.value = attr.exceed_max_chain - virtq->reset.exceed_max_chain,
+	};
+	if (ret == MLX5_VDPA_STATS_INVALID_BUFFER)
+		return ret;
+	stats[MLX5_VDPA_STATS_INVALID_BUFFER] = (struct rte_vdpa_stat) {
+		.id = MLX5_VDPA_STATS_INVALID_BUFFER,
+		.value = attr.invalid_buffer - virtq->reset.invalid_buffer,
+	};
+	if (ret == MLX5_VDPA_STATS_COMPLETION_ERRORS)
+		return ret;
+	stats[MLX5_VDPA_STATS_COMPLETION_ERRORS] = (struct rte_vdpa_stat) {
+		.id = MLX5_VDPA_STATS_COMPLETION_ERRORS,
+		.value = attr.error_cqes - virtq->reset.error_cqes,
+	};
+	return ret;
+}
+
+int
+mlx5_vdpa_virtq_stats_reset(struct mlx5_vdpa_priv *priv, int qid)
+{
+	struct mlx5_vdpa_virtq *virtq = &priv->virtqs[qid];
+	int ret;
+
+	if (!virtq->counters) {
+		DRV_LOG(ERR, "Failed to read virtq %d statistics - virtq "
+			"is invalid.", qid);
+		return -EINVAL;
+	}
+	ret = mlx5_devx_cmd_query_virtio_q_counters(virtq->counters,
+						    &virtq->reset);
+	if (ret)
+		DRV_LOG(ERR, "Failed to read virtq %d reset stats from HW.",
+			qid);
+	return ret;
+}