i40iw: Use vector when creating CQs
Assign each CEQ vector to a different CPU when possible, then when creating a CQ, use the vector for the CEQ id. This allows completion work to be distributed over multiple cores. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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@ -270,6 +270,7 @@ static void i40iw_disable_irq(struct i40iw_sc_dev *dev,
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i40iw_wr32(dev->hw, I40E_PFINT_DYN_CTLN(msix_vec->idx - 1), 0);
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else
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i40iw_wr32(dev->hw, I40E_VFINT_DYN_CTLN1(msix_vec->idx - 1), 0);
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irq_set_affinity_hint(msix_vec->irq, NULL);
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free_irq(msix_vec->irq, dev_id);
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}
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@ -688,6 +689,7 @@ static enum i40iw_status_code i40iw_configure_ceq_vector(struct i40iw_device *iw
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struct i40iw_msix_vector *msix_vec)
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{
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enum i40iw_status_code status;
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cpumask_t mask;
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if (iwdev->msix_shared && !ceq_id) {
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tasklet_init(&iwdev->dpc_tasklet, i40iw_dpc, (unsigned long)iwdev);
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@ -697,12 +699,15 @@ static enum i40iw_status_code i40iw_configure_ceq_vector(struct i40iw_device *iw
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status = request_irq(msix_vec->irq, i40iw_ceq_handler, 0, "CEQ", iwceq);
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}
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cpumask_clear(&mask);
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cpumask_set_cpu(msix_vec->cpu_affinity, &mask);
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irq_set_affinity_hint(msix_vec->irq, &mask);
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if (status) {
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i40iw_pr_err("ceq irq config fail\n");
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return I40IW_ERR_CONFIG;
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}
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msix_vec->ceq_id = ceq_id;
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msix_vec->cpu_affinity = 0;
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return 0;
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}
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@ -1396,6 +1401,7 @@ static enum i40iw_status_code i40iw_save_msix_info(struct i40iw_device *iwdev,
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for (i = 0, ceq_idx = 0; i < iwdev->msix_count; i++, iw_qvinfo++) {
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iwdev->iw_msixtbl[i].idx = ldev->msix_entries[i].entry;
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iwdev->iw_msixtbl[i].irq = ldev->msix_entries[i].vector;
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iwdev->iw_msixtbl[i].cpu_affinity = ceq_idx;
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if (i == 0) {
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iw_qvinfo->aeq_idx = 0;
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if (iwdev->msix_shared)
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@ -1135,7 +1135,8 @@ static struct ib_cq *i40iw_create_cq(struct ib_device *ibdev,
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ukinfo->cq_id = cq_num;
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iwcq->ibcq.cqe = info.cq_uk_init_info.cq_size;
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info.ceqe_mask = 0;
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info.ceq_id = 0;
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if (attr->comp_vector < iwdev->ceqs_count)
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info.ceq_id = attr->comp_vector;
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info.ceq_id_valid = true;
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info.ceqe_mask = 1;
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info.type = I40IW_CQ_TYPE_IWARP;
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@ -2619,7 +2620,7 @@ static struct i40iw_ib_device *i40iw_init_rdma_device(struct i40iw_device *iwdev
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(1ull << IB_USER_VERBS_CMD_POST_RECV) |
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(1ull << IB_USER_VERBS_CMD_POST_SEND);
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iwibdev->ibdev.phys_port_cnt = 1;
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iwibdev->ibdev.num_comp_vectors = 1;
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iwibdev->ibdev.num_comp_vectors = iwdev->ceqs_count;
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iwibdev->ibdev.dma_device = &pcidev->dev;
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iwibdev->ibdev.dev.parent = &pcidev->dev;
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iwibdev->ibdev.query_port = i40iw_query_port;
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