@@ -5964,7 +5964,8 @@ megasas_alloc_irq_vectors(struct megasas_instance *instance)
else
instance->iopoll_q_count = 0;
- num_msix_req = num_online_cpus() + instance->low_latency_index_start;
+ num_msix_req = blk_mq_num_online_queues(0) +
+ instance->low_latency_index_start;
instance->msix_vectors = min(num_msix_req,
instance->msix_vectors);
@@ -5980,7 +5981,8 @@ megasas_alloc_irq_vectors(struct megasas_instance *instance)
/* Disable Balanced IOPS mode and try realloc vectors */
instance->perf_mode = MR_LATENCY_PERF_MODE;
instance->low_latency_index_start = 1;
- num_msix_req = num_online_cpus() + instance->low_latency_index_start;
+ num_msix_req = blk_mq_num_online_queues(0) +
+ instance->low_latency_index_start;
instance->msix_vectors = min(num_msix_req,
instance->msix_vectors);
@@ -6236,7 +6238,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
intr_coalescing = (scratch_pad_1 & MR_INTR_COALESCING_SUPPORT_OFFSET) ?
true : false;
if (intr_coalescing &&
- (num_online_cpus() >= MR_HIGH_IOPS_QUEUE_COUNT) &&
+ (blk_mq_num_online_queues(0) >= MR_HIGH_IOPS_QUEUE_COUNT) &&
(instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES))
instance->perf_mode = MR_BALANCED_PERF_MODE;
else
@@ -6280,7 +6282,8 @@ static int megasas_init_fw(struct megasas_instance *instance)
else
instance->low_latency_index_start = 1;
- num_msix_req = num_online_cpus() + instance->low_latency_index_start;
+ num_msix_req = blk_mq_num_online_queues(0) +
+ instance->low_latency_index_start;
instance->msix_vectors = min(num_msix_req,
instance->msix_vectors);
@@ -6312,8 +6315,8 @@ static int megasas_init_fw(struct megasas_instance *instance)
megasas_setup_reply_map(instance);
dev_info(&instance->pdev->dev,
- "current msix/online cpus\t: (%d/%d)\n",
- instance->msix_vectors, (unsigned int)num_online_cpus());
+ "current msix/max num queues\t: (%d/%u)\n",
+ instance->msix_vectors, blk_mq_num_online_queues(0));
dev_info(&instance->pdev->dev,
"RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled");
@@ -4533,13 +4533,13 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
/* user wants to control IRQ setting for target mode */
ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
- min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
- PCI_IRQ_MSIX);
+ blk_mq_num_online_queues(ha->msix_count) + min_vecs,
+ PCI_IRQ_MSIX);
} else
ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
- min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
- PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
- &desc);
+ blk_mq_num_online_queues(ha->msix_count) + min_vecs,
+ PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
+ &desc);
if (ret < 0) {
ql_log(ql_log_fatal, vha, 0x00c7,
@@ -5264,15 +5264,14 @@ static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info)
if (reset_devices) {
num_queue_groups = 1;
} else {
- int num_cpus;
int max_queue_groups;
max_queue_groups = min(ctrl_info->max_inbound_queues / 2,
ctrl_info->max_outbound_queues - 1);
max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS);
- num_cpus = num_online_cpus();
- num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors);
+ num_queue_groups =
+ blk_mq_num_online_queues(ctrl_info->max_msix_vectors);
num_queue_groups = min(num_queue_groups, max_queue_groups);
}
Multiqueue devices should only allocate queues for the housekeeping CPUs when isolcpus=io_queue is set. This avoids that the isolated CPUs get disturbed with OS workload. Use helpers which calculates the correct number of queues which should be used when isolcpus is used. Signed-off-by: Daniel Wagner <dwagner@suse.de> --- drivers/scsi/megaraid/megaraid_sas_base.c | 15 +++++++++------ drivers/scsi/qla2xxx/qla_isr.c | 10 +++++----- drivers/scsi/smartpqi/smartpqi_init.c | 5 ++--- 3 files changed, 16 insertions(+), 14 deletions(-)