2 * Copyright (c) 2015, Mellanox Technologies. All rights reserved.
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33 #include <linux/irq.h>
36 static inline bool mlx5e_channel_no_affinity_change(struct mlx5e_channel *c)
38 int current_cpu = smp_processor_id();
39 const struct cpumask *aff;
40 struct irq_data *idata;
42 idata = irq_desc_get_irq_data(c->irq_desc);
43 aff = irq_data_get_affinity_mask(idata);
44 return cpumask_test_cpu(current_cpu, aff);
47 static void mlx5e_handle_tx_dim(struct mlx5e_txqsq *sq)
49 struct net_dim_sample dim_sample;
51 if (unlikely(!MLX5E_TEST_BIT(sq->state, MLX5E_SQ_STATE_AM)))
54 net_dim_sample(sq->cq.event_ctr, sq->stats.packets, sq->stats.bytes,
56 net_dim(&sq->dim, dim_sample);
59 static void mlx5e_handle_rx_dim(struct mlx5e_rq *rq)
61 struct net_dim_sample dim_sample;
63 if (unlikely(!MLX5E_TEST_BIT(rq->state, MLX5E_RQ_STATE_AM)))
66 net_dim_sample(rq->cq.event_ctr, rq->stats.packets, rq->stats.bytes,
68 net_dim(&rq->dim, dim_sample);
71 int mlx5e_napi_poll(struct napi_struct *napi, int budget)
73 struct mlx5e_channel *c = container_of(napi, struct mlx5e_channel,
79 for (i = 0; i < c->num_tc; i++)
80 busy |= mlx5e_poll_tx_cq(&c->sq[i].cq, budget);
83 busy |= mlx5e_poll_xdpsq_cq(&c->rq.xdpsq.cq);
85 if (likely(budget)) { /* budget=0 means: don't poll rx rings */
86 work_done = mlx5e_poll_rx_cq(&c->rq.cq, budget);
87 busy |= work_done == budget;
90 busy |= c->rq.post_wqes(&c->rq);
93 if (likely(mlx5e_channel_no_affinity_change(c)))
95 if (budget && work_done == budget)
99 if (unlikely(!napi_complete_done(napi, work_done)))
102 for (i = 0; i < c->num_tc; i++) {
103 mlx5e_handle_tx_dim(&c->sq[i]);
104 mlx5e_cq_arm(&c->sq[i].cq);
107 mlx5e_handle_rx_dim(&c->rq);
109 mlx5e_cq_arm(&c->rq.cq);
110 mlx5e_cq_arm(&c->icosq.cq);
115 void mlx5e_completion_event(struct mlx5_core_cq *mcq)
117 struct mlx5e_cq *cq = container_of(mcq, struct mlx5e_cq, mcq);
120 napi_schedule(cq->napi);
123 void mlx5e_cq_error_event(struct mlx5_core_cq *mcq, enum mlx5_event event)
125 struct mlx5e_cq *cq = container_of(mcq, struct mlx5e_cq, mcq);
126 struct mlx5e_channel *c = cq->channel;
127 struct net_device *netdev = c->netdev;
129 netdev_err(netdev, "%s: cqn=0x%.6x event=0x%.2x\n",
130 __func__, mcq->cqn, event);