diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_inline.h')
-rw-r--r-- | drivers/scsi/qla2xxx/qla_inline.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h index a7b5d1114682..a4a56ab0ba74 100644 --- a/drivers/scsi/qla2xxx/qla_inline.h +++ b/drivers/scsi/qla2xxx/qla_inline.h @@ -573,3 +573,61 @@ fcport_is_bigger(fc_port_t *fcport) { return !fcport_is_smaller(fcport); } + +static inline struct qla_qpair * +qla_mapq_nvme_select_qpair(struct qla_hw_data *ha, struct qla_qpair *qpair) +{ + int cpuid = raw_smp_processor_id(); + + if (qpair->cpuid != cpuid && + ha->qp_cpu_map[cpuid]) { + qpair = ha->qp_cpu_map[cpuid]; + } + return qpair; +} + +static inline void +qla_mapq_init_qp_cpu_map(struct qla_hw_data *ha, + struct qla_msix_entry *msix, + struct qla_qpair *qpair) +{ + const struct cpumask *mask; + unsigned int cpu; + + if (!ha->qp_cpu_map) + return; + mask = pci_irq_get_affinity(ha->pdev, msix->vector_base0); + if (!mask) + return; + qpair->cpuid = cpumask_first(mask); + for_each_cpu(cpu, mask) { + ha->qp_cpu_map[cpu] = qpair; + } + msix->cpuid = qpair->cpuid; + qpair->cpu_mapped = true; +} + +static inline void +qla_mapq_free_qp_cpu_map(struct qla_hw_data *ha) +{ + if (ha->qp_cpu_map) { + kfree(ha->qp_cpu_map); + ha->qp_cpu_map = NULL; + } +} + +static inline int qla_mapq_alloc_qp_cpu_map(struct qla_hw_data *ha) +{ + scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); + + if (!ha->qp_cpu_map) { + ha->qp_cpu_map = kcalloc(NR_CPUS, sizeof(struct qla_qpair *), + GFP_KERNEL); + if (!ha->qp_cpu_map) { + ql_log(ql_log_fatal, vha, 0x0180, + "Unable to allocate memory for qp_cpu_map ptrs.\n"); + return -1; + } + } + return 0; +} |