scsi: megaraid_sas: switch to pci_alloc_irq_vectors

[mkp: fixed bad indentation]

Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 74c7b44..757ddda 100644 (file)
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -2120,7 +2120,6 @@ struct megasas_instance {
        u32 ctrl_context_pages;
        struct megasas_ctrl_info *ctrl_info;
        unsigned int msix_vectors;
-       struct msix_entry msixentry[MEGASAS_MAX_MSIX_QUEUES];
        struct megasas_irq_context irq_context[MEGASAS_MAX_MSIX_QUEUES];
        u64 map_id;
        u64 pd_seq_map_id;

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 5462676..6484c38 100644 (file)
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -4837,7 +4837,7 @@ fail_alloc_cmds:
 }
 
 /*
- * megasas_setup_irqs_msix -           register legacy interrupts.
+ * megasas_setup_irqs_ioapic -         register legacy interrupts.
  * @instance:                          Adapter soft state
  *
  * Do not enable interrupt, only setup ISRs.
@@ -4852,8 +4852,9 @@ megasas_setup_irqs_ioapic(struct megasas_instance *instance)
        pdev = instance->pdev;
        instance->irq_context[0].instance = instance;
        instance->irq_context[0].MSIxIndex = 0;
-       if (request_irq(pdev->irq, instance->instancet->service_isr,
-               IRQF_SHARED, "megasas", &instance->irq_context[0])) {
+       if (request_irq(pci_irq_vector(pdev, 0),
+                       instance->instancet->service_isr, IRQF_SHARED,
+                       "megasas", &instance->irq_context[0])) {
                dev_err(&instance->pdev->dev,
                                "Failed to register IRQ from %s %d\n",
                                __func__, __LINE__);
@@ -4874,28 +4875,23 @@ megasas_setup_irqs_ioapic(struct megasas_instance *instance)
 static int
 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe)
 {
-       int i, j, cpu;
+       int i, j;
        struct pci_dev *pdev;
 
        pdev = instance->pdev;
 
        /* Try MSI-x */
-       cpu = cpumask_first(cpu_online_mask);
        for (i = 0; i < instance->msix_vectors; i++) {
                instance->irq_context[i].instance = instance;
                instance->irq_context[i].MSIxIndex = i;
-               if (request_irq(instance->msixentry[i].vector,
+               if (request_irq(pci_irq_vector(pdev, i),
                        instance->instancet->service_isr, 0, "megasas",
                        &instance->irq_context[i])) {
                        dev_err(&instance->pdev->dev,
                                "Failed to register IRQ for vector %d.\n", i);
-                       for (j = 0; j < i; j++) {
-                               if (smp_affinity_enable)
-                                       irq_set_affinity_hint(
-                                               instance->msixentry[j].vector, NULL);
-                               free_irq(instance->msixentry[j].vector,
-                                       &instance->irq_context[j]);
-                       }
+                       for (j = 0; j < i; j++)
+                               free_irq(pci_irq_vector(pdev, j),
+                                        &instance->irq_context[j]);
                        /* Retry irq register for IO_APIC*/
                        instance->msix_vectors = 0;
                        if (is_probe)
@@ -4903,14 +4899,6 @@ megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe)
                        else
                                return -1;
                }
-               if (smp_affinity_enable) {
-                       if (irq_set_affinity_hint(instance->msixentry[i].vector,
-                               get_cpu_mask(cpu)))
-                               dev_err(&instance->pdev->dev,
-                                       "Failed to set affinity hint"
-                                       " for cpu %d\n", cpu);
-                       cpu = cpumask_next(cpu, cpu_online_mask);
-               }
        }
        return 0;
 }
@@ -4927,14 +4915,12 @@ megasas_destroy_irqs(struct megasas_instance *instance) {
 
        if (instance->msix_vectors)
                for (i = 0; i < instance->msix_vectors; i++) {
-                       if (smp_affinity_enable)
-                               irq_set_affinity_hint(
-                                       instance->msixentry[i].vector, NULL);
-                       free_irq(instance->msixentry[i].vector,
+                       free_irq(pci_irq_vector(instance->pdev, i),
                                 &instance->irq_context[i]);
                }
        else
-               free_irq(instance->pdev->irq, &instance->irq_context[0]);
+               free_irq(pci_irq_vector(instance->pdev, 0),
+                        &instance->irq_context[0]);
 }
 
 /**
@@ -5092,6 +5078,8 @@ static int megasas_init_fw(struct megasas_instance *instance)
        msix_enable = (instance->instancet->read_fw_status_reg(reg_set) &
                       0x4000000) >> 0x1a;
        if (msix_enable && !msix_disable) {
+               int irq_flags = PCI_IRQ_MSIX;
+
                scratch_pad_2 = readl
                        (&instance->reg_set->outbound_scratch_pad_2);
                /* Check max MSI-X vectors */
@@ -5128,15 +5116,18 @@ static int megasas_init_fw(struct megasas_instance *instance)
                /* Don't bother allocating more MSI-X vectors than cpus */
                instance->msix_vectors = min(instance->msix_vectors,
                                             (unsigned int)num_online_cpus());
-               for (i = 0; i < instance->msix_vectors; i++)
-                       instance->msixentry[i].entry = i;
-               i = pci_enable_msix_range(instance->pdev, instance->msixentry,
-                                         1, instance->msix_vectors);
+               if (smp_affinity_enable)
+                       irq_flags |= PCI_IRQ_AFFINITY;
+               i = pci_alloc_irq_vectors(instance->pdev, 1,
+                                         instance->msix_vectors, irq_flags);
                if (i > 0)
                        instance->msix_vectors = i;
                else
                        instance->msix_vectors = 0;
        }
+       i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY);
+       if (i < 0)
+               goto fail_setup_irqs;
 
        dev_info(&instance->pdev->dev,
                "firmware supports msix\t: (%d)", fw_msix_count);
@@ -5307,10 +5298,11 @@ static int megasas_init_fw(struct megasas_instance *instance)
 
 fail_get_pd_list:
        instance->instancet->disable_intr(instance);
-       megasas_destroy_irqs(instance);
 fail_init_adapter:
+       megasas_destroy_irqs(instance);
+fail_setup_irqs:
        if (instance->msix_vectors)
-               pci_disable_msix(instance->pdev);
+               pci_free_irq_vectors(instance->pdev);
        instance->msix_vectors = 0;
 fail_ready_state:
        kfree(instance->ctrl_info);
@@ -5579,7 +5571,6 @@ static int megasas_io_attach(struct megasas_instance *instance)
        /*
         * Export parameters required by SCSI mid-layer
         */
-       host->irq = instance->pdev->irq;
        host->unique_id = instance->unique_id;
        host->can_queue = instance->max_scsi_cmds;
        host->this_id = instance->init_id;
@@ -5942,7 +5933,7 @@ fail_io_attach:
        else
                megasas_release_mfi(instance);
        if (instance->msix_vectors)
-               pci_disable_msix(instance->pdev);
+               pci_free_irq_vectors(instance->pdev);
 fail_init_mfi:
 fail_alloc_dma_buf:
        if (instance->evt_detail)
@@ -6100,7 +6091,7 @@ megasas_suspend(struct pci_dev *pdev, pm_message_t state)
        megasas_destroy_irqs(instance);
 
        if (instance->msix_vectors)
-               pci_disable_msix(instance->pdev);
+               pci_free_irq_vectors(instance->pdev);
 
        pci_save_state(pdev);
        pci_disable_device(pdev);
@@ -6120,6 +6111,7 @@ megasas_resume(struct pci_dev *pdev)
        int rval;
        struct Scsi_Host *host;
        struct megasas_instance *instance;
+       int irq_flags = PCI_IRQ_LEGACY;
 
        instance = pci_get_drvdata(pdev);
        host = instance->host;
@@ -6155,9 +6147,15 @@ megasas_resume(struct pci_dev *pdev)
                goto fail_ready_state;
 
        /* Now re-enable MSI-X */
-       if (instance->msix_vectors &&
-           pci_enable_msix_exact(instance->pdev, instance->msixentry,
-                                 instance->msix_vectors))
+       if (instance->msix_vectors) {
+               irq_flags = PCI_IRQ_MSIX;
+               if (smp_affinity_enable)
+                       irq_flags |= PCI_IRQ_AFFINITY;
+       }
+       rval = pci_alloc_irq_vectors(instance->pdev, 1,
+                                    instance->msix_vectors ?
+                                    instance->msix_vectors : 1, irq_flags);
+       if (rval < 0)
                goto fail_reenable_msix;
 
        if (instance->ctrl_context) {
@@ -6330,7 +6328,7 @@ skip_firing_dcmds:
        megasas_destroy_irqs(instance);
 
        if (instance->msix_vectors)
-               pci_disable_msix(instance->pdev);
+               pci_free_irq_vectors(instance->pdev);
 
        if (instance->ctrl_context) {
                megasas_release_fusion(instance);
@@ -6425,7 +6423,7 @@ skip_firing_dcmds:
        megasas_destroy_irqs(instance);
 
        if (instance->msix_vectors)
-               pci_disable_msix(instance->pdev);
+               pci_free_irq_vectors(instance->pdev);
 }
 
 /**