diff options
| author | Selvin Xavier <selvin.xavier@broadcom.com> | 2017-08-02 01:46:18 -0700 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-08-18 15:08:30 -0400 |
| commit | 6a5df91baf2528e584bf4493c30bbafe2db74c9e (patch) | |
| tree | c67d1089b42bde370228e44587ac42851477a5c4 /drivers/infiniband/hw/bnxt_re/qplib_fp.c | |
| parent | 62ede7779904bc75bdd84f1ff0016113956ce3b4 (diff) | |
| download | linux-6a5df91baf2528e584bf4493c30bbafe2db74c9e.tar.bz2 | |
RDMA/bnxt_re: Allocate multiple notification queues
Enables multiple Interrupt vectors. Driver is requesting the max
MSIX vectors based on the number of online cpus and creates upto
9 MSIx vectors (1 for control path and 8 for data path).
A tasklet is created for each of these vectors. NQs are assigned
to CQs in round robin fashion.
This patch also adds IRQ affinity hint for the MSIX vector of each NQ.
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/bnxt_re/qplib_fp.c')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_fp.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c index 31e15f31bba5..e8afc47f8949 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c @@ -365,6 +365,7 @@ void bnxt_qplib_disable_nq(struct bnxt_qplib_nq *nq) tasklet_kill(&nq->worker); if (nq->requested) { + irq_set_affinity_hint(nq->vector, NULL); free_irq(nq->vector, nq); nq->requested = false; } @@ -378,7 +379,7 @@ void bnxt_qplib_disable_nq(struct bnxt_qplib_nq *nq) } int bnxt_qplib_enable_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq, - int msix_vector, int bar_reg_offset, + int nq_idx, int msix_vector, int bar_reg_offset, int (*cqn_handler)(struct bnxt_qplib_nq *nq, struct bnxt_qplib_cq *), int (*srqn_handler)(struct bnxt_qplib_nq *nq, @@ -402,13 +403,25 @@ int bnxt_qplib_enable_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq, goto fail; nq->requested = false; - rc = request_irq(nq->vector, bnxt_qplib_nq_irq, 0, "bnxt_qplib_nq", nq); + memset(nq->name, 0, 32); + sprintf(nq->name, "bnxt_qplib_nq-%d", nq_idx); + rc = request_irq(nq->vector, bnxt_qplib_nq_irq, 0, nq->name, nq); if (rc) { dev_err(&nq->pdev->dev, "Failed to request IRQ for NQ: %#x", rc); bnxt_qplib_disable_nq(nq); goto fail; } + + cpumask_clear(&nq->mask); + cpumask_set_cpu(nq_idx, &nq->mask); + rc = irq_set_affinity_hint(nq->vector, &nq->mask); + if (rc) { + dev_warn(&nq->pdev->dev, + "QPLIB: set affinity failed; vector: %d nq_idx: %d\n", + nq->vector, nq_idx); + } + nq->requested = true; nq->bar_reg = NQ_CONS_PCI_BAR_REGION; nq->bar_reg_off = bar_reg_offset; @@ -432,8 +445,10 @@ fail: void bnxt_qplib_free_nq(struct bnxt_qplib_nq *nq) { - if (nq->hwq.max_elements) + if (nq->hwq.max_elements) { bnxt_qplib_free_hwq(nq->pdev, &nq->hwq); + nq->hwq.max_elements = 0; + } } int bnxt_qplib_alloc_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq) |