@@ -60,6 +60,10 @@ bool pm8001_use_msix = true;
module_param_named(use_msix, pm8001_use_msix, bool, 0444);
MODULE_PARM_DESC(zoned, "Use MSIX interrupts. Default: true");
+static bool pm8001_use_tasklet = true;
+module_param_named(use_tasklet, pm8001_use_tasklet, bool, 0444);
+MODULE_PARM_DESC(zoned, "Use MSIX interrupts. Default: true");
+
static struct scsi_transport_template *pm8001_stt;
static int pm8001_init_ccb_tag(struct pm8001_hba_info *);
@@ -204,8 +208,6 @@ static void pm8001_free(struct pm8001_hba_info *pm8001_ha)
kfree(pm8001_ha);
}
-#ifdef PM8001_USE_TASKLET
-
/**
* pm8001_tasklet() - tasklet for 64 msi-x interrupt handler
* @opaque: the passed general host adapter struct
@@ -213,13 +215,12 @@ static void pm8001_free(struct pm8001_hba_info *pm8001_ha)
*/
static void pm8001_tasklet(unsigned long opaque)
{
- struct pm8001_hba_info *pm8001_ha;
- struct isr_param *irq_vector;
+ struct isr_param *irq_vector = (struct isr_param *)opaque;
+ struct pm8001_hba_info *pm8001_ha = irq_vector->drv_inst;
+
+ if (WARN_ON_ONCE(!pm8001_ha))
+ return;
- irq_vector = (struct isr_param *)opaque;
- pm8001_ha = irq_vector->drv_inst;
- if (unlikely(!pm8001_ha))
- BUG_ON(1);
PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id);
}
@@ -227,6 +228,9 @@ static void pm8001_init_tasklet(struct pm8001_hba_info *pm8001_ha)
{
int i;
+ if (!pm8001_use_tasklet)
+ return;
+
/* Tasklet for non msi-x interrupt handler */
if ((!pm8001_ha->pdev->msix_cap || !pci_msi_enabled()) ||
(pm8001_ha->chip_id == chip_8001)) {
@@ -243,6 +247,9 @@ static void pm8001_kill_tasklet(struct pm8001_hba_info *pm8001_ha)
{
int i;
+ if (!pm8001_use_tasklet)
+ return;
+
/* For non-msix and msix interrupts */
if ((!pm8001_ha->pdev->msix_cap || !pci_msi_enabled()) ||
(pm8001_ha->chip_id == chip_8001)) {
@@ -254,13 +261,6 @@ static void pm8001_kill_tasklet(struct pm8001_hba_info *pm8001_ha)
tasklet_kill(&pm8001_ha->tasklet[i]);
}
-#else
-
-static void pm8001_init_tasklet(struct pm8001_hba_info *pm8001_ha) {}
-static void pm8001_kill_tasklet(struct pm8001_hba_info *pm8001_ha) {}
-
-#endif
-
static irqreturn_t pm8001_handle_irq(struct pm8001_hba_info *pm8001_ha,
int irq)
{
@@ -270,12 +270,11 @@ static irqreturn_t pm8001_handle_irq(struct pm8001_hba_info *pm8001_ha,
if (!PM8001_CHIP_DISP->is_our_interrupt(pm8001_ha))
return IRQ_NONE;
-#ifdef PM8001_USE_TASKLET
+ if (!pm8001_use_tasklet)
+ return PM8001_CHIP_DISP->isr(pm8001_ha, irq);
+
tasklet_schedule(&pm8001_ha->tasklet[irq]);
return IRQ_HANDLED;
-#else
- return PM8001_CHIP_DISP->isr(pm8001_ha, irq);
-#endif
}
/**
@@ -1538,6 +1537,9 @@ static int __init pm8001_init(void)
{
int rc = -ENOMEM;
+ if (pm8001_use_tasklet && !pm8001_use_msix)
+ pm8001_use_tasklet = false;
+
pm8001_wq = alloc_workqueue("pm80xx", 0, 0);
if (!pm8001_wq)
goto err;
@@ -85,7 +85,6 @@ do { \
extern bool pm8001_use_msix;
-#define PM8001_USE_TASKLET
#define PM8001_READ_VPD
@@ -526,9 +525,7 @@ struct pm8001_hba_info {
int number_of_intr;/*will be used in remove()*/
char intr_drvname[PM8001_MAX_MSIX_VEC]
[PM8001_NAME_LENGTH+1+3+1];
-#ifdef PM8001_USE_TASKLET
struct tasklet_struct tasklet[PM8001_MAX_MSIX_VEC];
-#endif
u32 logging_level;
u32 link_rate;
u32 fw_status;
Remove the macro PM8001_USE_TASKLET used to conditionally use tasklets for MSIX interrupts handling and replace it with the boolean module parameter pm8001_use_tasklet. This parameter defaults to true and can be true only if pm8001_use_msix is also true. Code conditionnaly defined with PM8001_USE_TASKLET is modified to instead use the parameter pm8001_use_tasklet. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> --- drivers/scsi/pm8001/pm8001_init.c | 40 ++++++++++++++++--------------- drivers/scsi/pm8001/pm8001_sas.h | 3 --- 2 files changed, 21 insertions(+), 22 deletions(-)