From: Caleb Raitto <caraitto@xxxxxxxxxx> Make vp_set_vq_affinity() take a cpumask instead of taking a single CPU. If there are fewer queues than cores, queue affinity should be able to map to multiple cores. Link: https://patchwork.ozlabs.org/patch/948149/ Suggested-by: Willem de Bruijn <willemb@xxxxxxxxxx> Signed-off-by: Caleb Raitto <caraitto@xxxxxxxxxx> --- drivers/crypto/virtio/virtio_crypto_core.c | 4 ++-- drivers/net/virtio_net.c | 8 ++++---- drivers/virtio/virtio_pci_common.c | 7 +++---- drivers/virtio/virtio_pci_common.h | 2 +- include/linux/virtio_config.h | 7 ++++--- 5 files changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/crypto/virtio/virtio_crypto_core.c b/drivers/crypto/virtio/virtio_crypto_core.c index 83326986c113..7c7198553699 100644 --- a/drivers/crypto/virtio/virtio_crypto_core.c +++ b/drivers/crypto/virtio/virtio_crypto_core.c @@ -146,7 +146,7 @@ static void virtcrypto_clean_affinity(struct virtio_crypto *vi, long hcpu) if (vi->affinity_hint_set) { for (i = 0; i < vi->max_data_queues; i++) - virtqueue_set_affinity(vi->data_vq[i].vq, -1); + virtqueue_set_affinity(vi->data_vq[i].vq, NULL); vi->affinity_hint_set = false; } @@ -173,7 +173,7 @@ static void virtcrypto_set_affinity(struct virtio_crypto *vcrypto) * */ for_each_online_cpu(cpu) { - virtqueue_set_affinity(vcrypto->data_vq[i].vq, cpu); + virtqueue_set_affinity(vcrypto->data_vq[i].vq, cpumask_of(cpu)); if (++i >= vcrypto->max_data_queues) break; } diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 39a7f4452587..43fabc0eb4d2 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -1878,8 +1878,8 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu) if (vi->affinity_hint_set) { for (i = 0; i < vi->max_queue_pairs; i++) { - virtqueue_set_affinity(vi->rq[i].vq, -1); - virtqueue_set_affinity(vi->sq[i].vq, -1); + virtqueue_set_affinity(vi->rq[i].vq, NULL); + virtqueue_set_affinity(vi->sq[i].vq, NULL); } vi->affinity_hint_set = false; @@ -1905,8 +1905,8 @@ static void virtnet_set_affinity(struct virtnet_info *vi) for_each_online_cpu(cpu) { const unsigned long *mask = cpumask_bits(cpumask_of(cpu)); - virtqueue_set_affinity(vi->rq[i].vq, cpu); - virtqueue_set_affinity(vi->sq[i].vq, cpu); + virtqueue_set_affinity(vi->rq[i].vq, cpumask_of(cpu)); + virtqueue_set_affinity(vi->sq[i].vq, cpumask_of(cpu)); __netif_set_xps_queue(vi->dev, mask, i, false); i++; } diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c index 705aebd74e56..465a6f5142cc 100644 --- a/drivers/virtio/virtio_pci_common.c +++ b/drivers/virtio/virtio_pci_common.c @@ -421,7 +421,7 @@ const char *vp_bus_name(struct virtio_device *vdev) * - OR over all affinities for shared MSI * - ignore the affinity request if we're using INTX */ -int vp_set_vq_affinity(struct virtqueue *vq, int cpu) +int vp_set_vq_affinity(struct virtqueue *vq, const struct cpumask *cpu_mask) { struct virtio_device *vdev = vq->vdev; struct virtio_pci_device *vp_dev = to_vp_device(vdev); @@ -435,11 +435,10 @@ int vp_set_vq_affinity(struct virtqueue *vq, int cpu) if (vp_dev->msix_enabled) { mask = vp_dev->msix_affinity_masks[info->msix_vector]; irq = pci_irq_vector(vp_dev->pci_dev, info->msix_vector); - if (cpu == -1) + if (!cpu_mask) irq_set_affinity_hint(irq, NULL); else { - cpumask_clear(mask); - cpumask_set_cpu(cpu, mask); + cpumask_copy(mask, cpu_mask); irq_set_affinity_hint(irq, mask); } } diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h index 135ee3cf7175..02271002c2f3 100644 --- a/drivers/virtio/virtio_pci_common.h +++ b/drivers/virtio/virtio_pci_common.h @@ -141,7 +141,7 @@ const char *vp_bus_name(struct virtio_device *vdev); * - OR over all affinities for shared MSI * - ignore the affinity request if we're using INTX */ -int vp_set_vq_affinity(struct virtqueue *vq, int cpu); +int vp_set_vq_affinity(struct virtqueue *vq, const struct cpumask *cpu_mask); const struct cpumask *vp_get_vq_affinity(struct virtio_device *vdev, int index); diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index 5559a2d31c46..32baf8e26735 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -79,7 +79,8 @@ struct virtio_config_ops { u64 (*get_features)(struct virtio_device *vdev); int (*finalize_features)(struct virtio_device *vdev); const char *(*bus_name)(struct virtio_device *vdev); - int (*set_vq_affinity)(struct virtqueue *vq, int cpu); + int (*set_vq_affinity)(struct virtqueue *vq, + const struct cpumask *cpu_mask); const struct cpumask *(*get_vq_affinity)(struct virtio_device *vdev, int index); }; @@ -236,11 +237,11 @@ const char *virtio_bus_name(struct virtio_device *vdev) * */ static inline -int virtqueue_set_affinity(struct virtqueue *vq, int cpu) +int virtqueue_set_affinity(struct virtqueue *vq, const struct cpumask *cpu_mask) { struct virtio_device *vdev = vq->vdev; if (vdev->config->set_vq_affinity) - return vdev->config->set_vq_affinity(vq, cpu); + return vdev->config->set_vq_affinity(vq, cpu_mask); return 0; } -- 2.18.0.597.ga71716f1ad-goog
