diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 6e24a341ad28..44b9332c147e 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -11804,6 +11804,46 @@ static void bnxt_cfg_usr_fltrs(struct bnxt *bp) bnxt_cfg_one_usr_fltr(bp, usr_fltr); } +static int bnxt_set_xps_mapping(struct bnxt *bp) +{ + int numa_node = dev_to_node(&bp->pdev->dev); + unsigned int q_idx, map_idx, cpu, i; + const struct cpumask *cpu_mask_ptr; + int nr_cpus = num_online_cpus(); + cpumask_t *q_map; + int rc = 0; + + q_map = kcalloc(bp->tx_nr_rings_per_tc, sizeof(*q_map), GFP_KERNEL); + if (!q_map) + return -ENOMEM; + + /* Create CPU mask for all TX queues across MQPRIO traffic classes. + * Each TC has the same number of TX queues. The nth TX queue for each + * TC will have the same CPU mask. + */ + for (i = 0; i < nr_cpus; i++) { + map_idx = i % bp->tx_nr_rings_per_tc; + cpu = cpumask_local_spread(i, numa_node); + cpu_mask_ptr = get_cpu_mask(cpu); + cpumask_or(&q_map[map_idx], &q_map[map_idx], cpu_mask_ptr); + } + + /* Register CPU mask for each TX queue except the ones marked for XDP */ + for (q_idx = 0; q_idx < bp->dev->real_num_tx_queues; q_idx++) { + map_idx = q_idx % bp->tx_nr_rings_per_tc; + rc = netif_set_xps_queue(bp->dev, &q_map[map_idx], q_idx); + if (rc) { + netdev_warn(bp->dev, "Error setting XPS for q:%d\n", + q_idx); + break; + } + } + + kfree(q_map); + + return rc; +} + static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) { int rc = 0; @@ -11866,8 +11906,12 @@ static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) } } - if (irq_re_init) + if (irq_re_init) { udp_tunnel_nic_reset_ntf(bp->dev); + rc = bnxt_set_xps_mapping(bp); + if (rc) + netdev_warn(bp->dev, "failed to set xps mapping\n"); + } if (bp->tx_nr_rings_xdp < num_possible_cpus()) { if (!static_key_enabled(&bnxt_xdp_locking_key))