[PATCH 5/8] scsi: megaraid: convert tasklets to use new tasklet_setup() API
Allen Pais
allen.cryptic at gmail.com
Mon Aug 17 18:54:06 AEST 2020
From: Allen Pais <allen.lkml at gmail.com>
In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.
Signed-off-by: Romain Perier <romain.perier at gmail.com>
Signed-off-by: Allen Pais <allen.lkml at gmail.com>
---
drivers/scsi/megaraid/megaraid_mbox.c | 9 ++++-----
drivers/scsi/megaraid/megaraid_sas.h | 2 +-
drivers/scsi/megaraid/megaraid_sas_base.c | 16 +++++++---------
drivers/scsi/megaraid/megaraid_sas_fusion.c | 14 +++++++-------
4 files changed, 19 insertions(+), 22 deletions(-)
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index 19469a2c0ea3..47b2d8045c9d 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -119,7 +119,7 @@ static void megaraid_mbox_prepare_epthru(adapter_t *, scb_t *,
static irqreturn_t megaraid_isr(int, void *);
-static void megaraid_mbox_dpc(unsigned long);
+static void megaraid_mbox_dpc(struct tasklet_struct *t);
static ssize_t megaraid_sysfs_show_app_hndl(struct device *, struct device_attribute *attr, char *);
static ssize_t megaraid_sysfs_show_ldnum(struct device *, struct device_attribute *attr, char *);
@@ -878,8 +878,7 @@ megaraid_init_mbox(adapter_t *adapter)
}
// setup tasklet for DPC
- tasklet_init(&adapter->dpc_h, megaraid_mbox_dpc,
- (unsigned long)adapter);
+ tasklet_setup(&adapter->dpc_h, megaraid_mbox_dpc);
con_log(CL_DLEVEL1, (KERN_INFO
"megaraid mbox hba successfully initialized\n"));
@@ -2168,9 +2167,9 @@ megaraid_isr(int irq, void *devp)
* it is being called.
*/
static void
-megaraid_mbox_dpc(unsigned long devp)
+megaraid_mbox_dpc(struct tasklet_struct *t)
{
- adapter_t *adapter = (adapter_t *)devp;
+ adapter_t *adapter = from_tasklet(adapter, t, dpc_h);
mraid_device_t *raid_dev;
struct list_head clist;
struct scatterlist *sgl;
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 5e4137f10e0e..ce361b2b9f14 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -2531,7 +2531,7 @@ struct megasas_instance_template {
int (*check_reset)(struct megasas_instance *, \
struct megasas_register_set __iomem *);
irqreturn_t (*service_isr)(int irq, void *devp);
- void (*tasklet)(unsigned long);
+ void (*tasklet)(struct tasklet_struct *t);
u32 (*init_adapter)(struct megasas_instance *);
u32 (*build_and_issue_cmd) (struct megasas_instance *,
struct scsi_cmnd *);
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 861f7140f52e..dba60cc1cf41 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -217,7 +217,7 @@ megasas_init_adapter_mfi(struct megasas_instance *instance);
u32
megasas_build_and_issue_cmd(struct megasas_instance *instance,
struct scsi_cmnd *scmd);
-static void megasas_complete_cmd_dpc(unsigned long instance_addr);
+static void megasas_complete_cmd_dpc(struct tasklet_struct *t);
int
wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
int seconds);
@@ -2217,14 +2217,14 @@ megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
*
* Tasklet to complete cmds
*/
-static void megasas_complete_cmd_dpc(unsigned long instance_addr)
+static void megasas_complete_cmd_dpc(struct tasklet_struct *t)
{
u32 producer;
u32 consumer;
u32 context;
struct megasas_cmd *cmd;
- struct megasas_instance *instance =
- (struct megasas_instance *)instance_addr;
+ struct megasas_instance *instance = from_tasklet(instance, t,
+ isr_tasklet);
unsigned long flags;
/* If we have already declared adapter dead, donot complete cmds */
@@ -2769,7 +2769,7 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance)
* Call cmd completion routine. Cmd to be
* be completed directly without depending on isr.
*/
- megasas_complete_cmd_dpc((unsigned long)instance);
+ megasas_complete_cmd_dpc(&instance->isr_tasklet);
}
msleep(1000);
@@ -6180,8 +6180,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
dev_info(&instance->pdev->dev,
"RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled");
- tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
- (unsigned long)instance);
+ tasklet_setup(&instance->isr_tasklet, instance->instancet->tasklet);
/*
* Below are default value for legacy Firmware.
@@ -7719,8 +7718,7 @@ megasas_resume(struct pci_dev *pdev)
if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS)
goto fail_init_mfi;
- tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
- (unsigned long)instance);
+ tasklet_setup(&instance->isr_tasklet, instance->instancet->tasklet);
if (instance->msix_vectors ?
megasas_setup_irqs_msix(instance, 0) :
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 0824410f78f8..67b07660971a 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -3705,15 +3705,15 @@ int megasas_irqpoll(struct irq_poll *irqpoll, int budget)
/**
* megasas_complete_cmd_dpc_fusion - Completes command
- * @instance_addr: Adapter soft state address
+ * @t: Instance of the tasklet being run
*
* Tasklet to complete cmds
*/
static void
-megasas_complete_cmd_dpc_fusion(unsigned long instance_addr)
+megasas_complete_cmd_dpc_fusion(struct tasklet_struct *t)
{
- struct megasas_instance *instance =
- (struct megasas_instance *)instance_addr;
+ struct megasas_instance *instance = from_tasklet(instance, t,
+ isr_tasklet);
u32 count, MSIxIndex;
count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
@@ -4062,7 +4062,7 @@ megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
if (reason == MFI_IO_TIMEOUT_OCR) {
dev_info(&instance->pdev->dev,
"MFI command is timed out\n");
- megasas_complete_cmd_dpc_fusion((unsigned long)instance);
+ megasas_complete_cmd_dpc_fusion(&instance->isr_tasklet);
if (instance->snapdump_wait_time)
megasas_trigger_snap_dump(instance);
retval = 1;
@@ -4078,7 +4078,7 @@ megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
"FW in FAULT state Fault code:0x%x subcode:0x%x func:%s\n",
abs_state & MFI_STATE_FAULT_CODE,
abs_state & MFI_STATE_FAULT_SUBCODE, __func__);
- megasas_complete_cmd_dpc_fusion((unsigned long)instance);
+ megasas_complete_cmd_dpc_fusion(&instance->isr_tasklet);
if (instance->requestorId && reason) {
dev_warn(&instance->pdev->dev, "SR-IOV Found FW in FAULT"
" state while polling during"
@@ -4122,7 +4122,7 @@ megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
}
}
- megasas_complete_cmd_dpc_fusion((unsigned long)instance);
+ megasas_complete_cmd_dpc_fusion(&instance->isr_tasklet);
outstanding = atomic_read(&instance->fw_outstanding);
if (!outstanding)
goto out;
--
2.17.1
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