Re: [PATCH v3 04/15] scsi: replace blk_mq_pci_map_queues with blk_mq_dev_map_queues
From: John Garry <john.g.garry@oracle.com>
Date: 2024-08-12 15:32:23
Also in:
linux-doc, linux-nvme, linux-scsi, lkml, virtualization
On 06/08/2024 13:06, Daniel Wagner wrote:
Replace all users of blk_mq_pci_map_queues with the more generic blk_mq_dev_map_queues. This in preparation to retire blk_mq_pci_map_queues.
nit: About blk_mq_dev_map_queues(), from the name it gives the impression that we deal in struct device, which is not the case.
quoted hunk ↗ jump to hunk
Signed-off-by: Daniel Wagner <redacted> --- drivers/scsi/fnic/fnic_main.c | 3 ++- drivers/scsi/hisi_sas/hisi_sas.h | 1 - drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 20 ++++++++++---------- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 5 +++-- drivers/scsi/megaraid/megaraid_sas_base.c | 3 ++- drivers/scsi/mpi3mr/mpi3mr_os.c | 3 ++- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 3 ++- drivers/scsi/pm8001/pm8001_init.c | 3 ++- drivers/scsi/qla2xxx/qla_nvme.c | 3 ++- drivers/scsi/qla2xxx/qla_os.c | 3 ++- drivers/scsi/smartpqi/smartpqi_init.c | 7 ++++--- 11 files changed, 31 insertions(+), 23 deletions(-)diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 29eead383eb9..dee7f241c38a 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c@@ -601,7 +601,8 @@ void fnic_mq_map_queues_cpus(struct Scsi_Host *host) return; } - blk_mq_pci_map_queues(qmap, l_pdev, FNIC_PCI_OFFSET); + blk_mq_dev_map_queues(qmap, l_pdev, FNIC_PCI_OFFSET, + blk_mq_pci_get_queue_affinity); } static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index d223f482488f..010479a354ee 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h@@ -9,7 +9,6 @@ #include <linux/acpi.h> #include <linux/blk-mq.h> -#include <linux/blk-mq-pci.h> #include <linux/clk.h> #include <linux/debugfs.h> #include <linux/dmapool.h>diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index 342d75f12051..91daf57f328c 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c@@ -3549,21 +3549,21 @@ static const struct attribute_group *sdev_groups_v2_hw[] = { NULL }; +static const struct cpumask *hisi_hba_get_queue_affinity(void *dev_data, + int offset, int idx)
personally I think that name "queue" would be better than "idx"
+{
+ struct hisi_hba *hba = dev_data;
+
+ return irq_get_affinity_mask(hba->irq_map[offset + idx]);
+}
+
static void map_queues_v2_hw(struct Scsi_Host *shost)
{
struct hisi_hba *hisi_hba = shost_priv(shost);
struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
- const struct cpumask *mask;
- unsigned int queue, cpu;
- for (queue = 0; queue < qmap->nr_queues; queue++) {
- mask = irq_get_affinity_mask(hisi_hba->irq_map[96 + queue]);
- if (!mask)
- continue;
-
- for_each_cpu(cpu, mask)
- qmap->mq_map[cpu] = qmap->queue_offset + queue;
- }
+ return blk_mq_dev_map_queues(qmap, hisi_hba, 96,blk_mq_dev_map_queues() returns void, and so we should not return the value (which is void). And I know that the current code is like this, but using CQ0_IRQ_INDEX instead of 96 would be nicer.
quoted hunk ↗ jump to hunk
+ hisi_hba_get_queue_affinity); } static const struct scsi_host_template sht_v2_hw = {diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index feda9b54b443..0b3c7b49813a 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c@@ -3322,8 +3322,9 @@ static void hisi_sas_map_queues(struct Scsi_Host *shost) if (i == HCTX_TYPE_POLL)