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aacraid: Reset irq affinity hints 

Reset irq affinity hints before releasing IRQ.
Removed duplicate code of IRQ acquire/release.

Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com>
Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com>
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
This commit is contained in:
Mahesh Rajashekhara 2015-08-28 06:38:38 -04:00 committed by James Bottomley
parent 55b8760847
commit 8b1462e0eb
3 changed files with 86 additions and 73 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/scsi/aacraid/aacraid.h
View File

@ -2110,6 +2110,8 @@ static inline unsigned int cap_to_cyls(sector_t capacity, unsigned divisor)
#define AAC_OWNER_ERROR_HANDLER 0x103
#define AAC_OWNER_FIRMWARE 0x106
int aac_acquire_irq(struct aac_dev *dev);
void aac_free_irq(struct aac_dev *dev);
const char *aac_driverinfo(struct Scsi_Host *);
struct fib *aac_fib_alloc(struct aac_dev *dev);
int aac_fib_setup(struct aac_dev *dev);

113
drivers/scsi/aacraid/commsup.c
View File

@ -1270,13 +1270,12 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
static int _aac_reset_adapter(struct aac_dev *aac, int forced)
{
int index, quirks;
int retval, i;
int retval;
struct Scsi_Host *host;
struct scsi_device *dev;
struct scsi_cmnd *command;
struct scsi_cmnd *command_list;
int jafo = 0;
int cpu;
/*
* Assumptions:
@ -1339,35 +1338,7 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced)
aac->comm_phys = 0;
kfree(aac->queues);
aac->queues = NULL;
cpu = cpumask_first(cpu_online_mask);
if (aac->pdev->device == PMC_DEVICE_S6 ||
aac->pdev->device == PMC_DEVICE_S7 ||
aac->pdev->device == PMC_DEVICE_S8 ||
aac->pdev->device == PMC_DEVICE_S9) {
if (aac->max_msix > 1) {
for (i = 0; i < aac->max_msix; i++) {
if (irq_set_affinity_hint(
aac->msixentry[i].vector,
NULL)) {
printk(KERN_ERR "%s%d: Failed to reset IRQ affinity for cpu %d\n",
aac->name,
aac->id,
cpu);
}
cpu = cpumask_next(cpu,
cpu_online_mask);
free_irq(aac->msixentry[i].vector,
&(aac->aac_msix[i]));
}
pci_disable_msix(aac->pdev);
} else {
free_irq(aac->pdev->irq, &(aac->aac_msix[0]));
}
} else {
free_irq(aac->pdev->irq, aac);
}
if (aac->msi)
pci_disable_msi(aac->pdev);
aac_free_irq(aac);
kfree(aac->fsa_dev);
aac->fsa_dev = NULL;
quirks = aac_get_driver_ident(index)->quirks;
@ -1978,3 +1949,83 @@ int aac_command_thread(void *data)
dev->aif_thread = 0;
return 0;
}
int aac_acquire_irq(struct aac_dev *dev)
{
int i;
int j;
int ret = 0;
int cpu;
cpu = cpumask_first(cpu_online_mask);
if (!dev->sync_mode && dev->msi_enabled && dev->max_msix > 1) {
for (i = 0; i < dev->max_msix; i++) {
dev->aac_msix[i].vector_no = i;
dev->aac_msix[i].dev = dev;
if (request_irq(dev->msixentry[i].vector,
dev->a_ops.adapter_intr,
0, "aacraid", &(dev->aac_msix[i]))) {
printk(KERN_ERR "%s%d: Failed to register IRQ for vector %d.\n",
dev->name, dev->id, i);
for (j = 0 ; j < i ; j++)
free_irq(dev->msixentry[j].vector,
&(dev->aac_msix[j]));
pci_disable_msix(dev->pdev);
ret = -1;
}
if (irq_set_affinity_hint(dev->msixentry[i].vector,
get_cpu_mask(cpu))) {
printk(KERN_ERR "%s%d: Failed to set IRQ affinity for cpu %d\n",
dev->name, dev->id, cpu);
}
cpu = cpumask_next(cpu, cpu_online_mask);
}
} else {
dev->aac_msix[0].vector_no = 0;
dev->aac_msix[0].dev = dev;
if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
IRQF_SHARED, "aacraid",
&(dev->aac_msix[0])) < 0) {
if (dev->msi)
pci_disable_msi(dev->pdev);
printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
dev->name, dev->id);
ret = -1;
}
}
return ret;
}
void aac_free_irq(struct aac_dev *dev)
{
int i;
int cpu;
cpu = cpumask_first(cpu_online_mask);
if (dev->pdev->device == PMC_DEVICE_S6 ||
dev->pdev->device == PMC_DEVICE_S7 ||
dev->pdev->device == PMC_DEVICE_S8 ||
dev->pdev->device == PMC_DEVICE_S9) {
if (dev->max_msix > 1) {
for (i = 0; i < dev->max_msix; i++) {
if (irq_set_affinity_hint(
dev->msixentry[i].vector, NULL)) {
printk(KERN_ERR "%s%d: Failed to reset IRQ affinity for cpu %d\n",
dev->name, dev->id, cpu);
}
cpu = cpumask_next(cpu, cpu_online_mask);
free_irq(dev->msixentry[i].vector,
&(dev->aac_msix[i]));
}
} else {
free_irq(dev->pdev->irq, &(dev->aac_msix[0]));
}
} else {
free_irq(dev->pdev->irq, dev);
}
if (dev->msi)
pci_disable_msi(dev->pdev);
else if (dev->max_msix > 1)
pci_disable_msix(dev->pdev);
}

44
drivers/scsi/aacraid/src.c
View File

@ -798,9 +798,7 @@ int aac_srcv_init(struct aac_dev *dev)
unsigned long status;
int restart = 0;
int instance = dev->id;
int i, j;
const char *name = dev->name;
int cpu;
dev->a_ops.adapter_ioremap = aac_srcv_ioremap;
dev->a_ops.adapter_comm = aac_src_select_comm;
@ -918,48 +916,10 @@ int aac_srcv_init(struct aac_dev *dev)
goto error_iounmap;
if (dev->msi_enabled)
aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
if (!dev->sync_mode && dev->msi_enabled && dev->max_msix > 1) {
cpu = cpumask_first(cpu_online_mask);
for (i = 0; i < dev->max_msix; i++) {
dev->aac_msix[i].vector_no = i;
dev->aac_msix[i].dev = dev;
if (request_irq(dev->msixentry[i].vector,
dev->a_ops.adapter_intr,
0,
"aacraid",
&(dev->aac_msix[i]))) {
printk(KERN_ERR "%s%d: Failed to register IRQ for vector %d.\n",
name, instance, i);
for (j = 0 ; j < i ; j++)
free_irq(dev->msixentry[j].vector,
&(dev->aac_msix[j]));
pci_disable_msix(dev->pdev);
goto error_iounmap;
}
if (irq_set_affinity_hint(
dev->msixentry[i].vector,
get_cpu_mask(cpu))) {
printk(KERN_ERR "%s%d: Failed to set IRQ affinity for cpu %d\n",
name, instance, cpu);
}
cpu = cpumask_next(cpu, cpu_online_mask);
}
} else {
dev->aac_msix[0].vector_no = 0;
dev->aac_msix[0].dev = dev;
if (aac_acquire_irq(dev))
goto error_iounmap;
if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
IRQF_SHARED,
"aacraid",
&(dev->aac_msix[0])) < 0) {
if (dev->msi)
pci_disable_msi(dev->pdev);
printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
name, instance);
goto error_iounmap;
}
}
dev->dbg_base = dev->base_start;
dev->dbg_base_mapped = dev->base;
dev->dbg_size = dev->base_size;