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path: root/drivers/scsi/pm8001/pm8001_init.c
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Diffstat (limited to 'drivers/scsi/pm8001/pm8001_init.c')
-rw-r--r--drivers/scsi/pm8001/pm8001_init.c285
1 files changed, 153 insertions, 132 deletions
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 443a3176c6..ed6b7d954d 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -56,6 +56,18 @@ MODULE_PARM_DESC(link_rate, "Enable link rate.\n"
" 4: Link rate 6.0G\n"
" 8: Link rate 12.0G\n");
+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 bool pm8001_read_wwn = true;
+module_param_named(read_wwn, pm8001_read_wwn, bool, 0444);
+MODULE_PARM_DESC(zoned, "Get WWN from the controller. Default: true");
+
static struct scsi_transport_template *pm8001_stt;
static int pm8001_init_ccb_tag(struct pm8001_hba_info *);
@@ -200,8 +212,6 @@ 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
@@ -209,16 +219,67 @@ 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);
}
-#endif
+
+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)) {
+ tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet,
+ (unsigned long)&(pm8001_ha->irq_vector[0]));
+ return;
+ }
+ for (i = 0; i < PM8001_MAX_MSIX_VEC; i++)
+ tasklet_init(&pm8001_ha->tasklet[i], pm8001_tasklet,
+ (unsigned long)&(pm8001_ha->irq_vector[i]));
+}
+
+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)) {
+ tasklet_kill(&pm8001_ha->tasklet[0]);
+ return;
+ }
+
+ for (i = 0; i < PM8001_MAX_MSIX_VEC; i++)
+ tasklet_kill(&pm8001_ha->tasklet[i]);
+}
+
+static irqreturn_t pm8001_handle_irq(struct pm8001_hba_info *pm8001_ha,
+ int irq)
+{
+ if (unlikely(!pm8001_ha))
+ return IRQ_NONE;
+
+ if (!PM8001_CHIP_DISP->is_our_interrupt(pm8001_ha))
+ return IRQ_NONE;
+
+ if (!pm8001_use_tasklet)
+ return PM8001_CHIP_DISP->isr(pm8001_ha, irq);
+
+ tasklet_schedule(&pm8001_ha->tasklet[irq]);
+ return IRQ_HANDLED;
+}
/**
* pm8001_interrupt_handler_msix - main MSIX interrupt handler.
@@ -230,22 +291,10 @@ static void pm8001_tasklet(unsigned long opaque)
*/
static irqreturn_t pm8001_interrupt_handler_msix(int irq, void *opaque)
{
- struct isr_param *irq_vector;
- struct pm8001_hba_info *pm8001_ha;
- irqreturn_t ret = IRQ_HANDLED;
- irq_vector = (struct isr_param *)opaque;
- pm8001_ha = irq_vector->drv_inst;
+ struct isr_param *irq_vector = (struct isr_param *)opaque;
+ struct pm8001_hba_info *pm8001_ha = irq_vector->drv_inst;
- if (unlikely(!pm8001_ha))
- return IRQ_NONE;
- if (!PM8001_CHIP_DISP->is_our_interrupt(pm8001_ha))
- return IRQ_NONE;
-#ifdef PM8001_USE_TASKLET
- tasklet_schedule(&pm8001_ha->tasklet[irq_vector->irq_id]);
-#else
- ret = PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id);
-#endif
- return ret;
+ return pm8001_handle_irq(pm8001_ha, irq_vector->irq_id);
}
/**
@@ -256,24 +305,14 @@ static irqreturn_t pm8001_interrupt_handler_msix(int irq, void *opaque)
static irqreturn_t pm8001_interrupt_handler_intx(int irq, void *dev_id)
{
- struct pm8001_hba_info *pm8001_ha;
- irqreturn_t ret = IRQ_HANDLED;
struct sas_ha_struct *sha = dev_id;
- pm8001_ha = sha->lldd_ha;
- if (unlikely(!pm8001_ha))
- return IRQ_NONE;
- if (!PM8001_CHIP_DISP->is_our_interrupt(pm8001_ha))
- return IRQ_NONE;
+ struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
-#ifdef PM8001_USE_TASKLET
- tasklet_schedule(&pm8001_ha->tasklet[0]);
-#else
- ret = PM8001_CHIP_DISP->isr(pm8001_ha, 0);
-#endif
- return ret;
+ return pm8001_handle_irq(pm8001_ha, 0);
}
static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha);
+static void pm8001_free_irq(struct pm8001_hba_info *pm8001_ha);
/**
* pm8001_alloc - initiate our hba structure and 6 DMAs area.
@@ -511,7 +550,6 @@ static struct pm8001_hba_info *pm8001_pci_alloc(struct pci_dev *pdev,
{
struct pm8001_hba_info *pm8001_ha;
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
- int j;
pm8001_ha = sha->lldd_ha;
if (!pm8001_ha)
@@ -542,17 +580,8 @@ static struct pm8001_hba_info *pm8001_pci_alloc(struct pci_dev *pdev,
else
pm8001_ha->iomb_size = IOMB_SIZE_SPC;
-#ifdef PM8001_USE_TASKLET
- /* Tasklet for non msi-x interrupt handler */
- if ((!pdev->msix_cap || !pci_msi_enabled())
- || (pm8001_ha->chip_id == chip_8001))
- tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet,
- (unsigned long)&(pm8001_ha->irq_vector[0]));
- else
- for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
- tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet,
- (unsigned long)&(pm8001_ha->irq_vector[j]));
-#endif
+ pm8001_init_tasklet(pm8001_ha);
+
if (pm8001_ioremap(pm8001_ha))
goto failed_pci_alloc;
if (!pm8001_alloc(pm8001_ha, ent))
@@ -658,19 +687,30 @@ static void pm8001_post_sas_ha_init(struct Scsi_Host *shost,
*/
static int pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
{
- u8 i, j;
- u8 sas_add[8];
-#ifdef PM8001_READ_VPD
- /* For new SPC controllers WWN is stored in flash vpd
- * For SPC/SPCve controllers WWN is stored in EEPROM
- * For Older SPC WWN is stored in NVMD
- */
DECLARE_COMPLETION_ONSTACK(completion);
struct pm8001_ioctl_payload payload;
+ unsigned long time_remaining;
+ u8 sas_add[8];
u16 deviceid;
int rc;
- unsigned long time_remaining;
+ u8 i, j;
+
+ if (!pm8001_read_wwn) {
+ __be64 dev_sas_addr = cpu_to_be64(0x50010c600047f9d0ULL);
+ for (i = 0; i < pm8001_ha->chip->n_phy; i++)
+ memcpy(&pm8001_ha->phy[i].dev_sas_addr, &dev_sas_addr,
+ SAS_ADDR_SIZE);
+ memcpy(pm8001_ha->sas_addr, &pm8001_ha->phy[0].dev_sas_addr,
+ SAS_ADDR_SIZE);
+ return 0;
+ }
+
+ /*
+ * For new SPC controllers WWN is stored in flash vpd. For SPC/SPCve
+ * controllers WWN is stored in EEPROM. And for Older SPC WWN is stored
+ * in NVMD.
+ */
if (PM8001_CHIP_DISP->fatal_errors(pm8001_ha)) {
pm8001_dbg(pm8001_ha, FAIL, "controller is in fatal error state\n");
return -EIO;
@@ -744,16 +784,7 @@ static int pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
pm8001_ha->phy[i].dev_sas_addr);
}
kfree(payload.func_specific);
-#else
- for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
- pm8001_ha->phy[i].dev_sas_addr = 0x50010c600047f9d0ULL;
- pm8001_ha->phy[i].dev_sas_addr =
- cpu_to_be64((u64)
- (*(u64 *)&pm8001_ha->phy[i].dev_sas_addr));
- }
- memcpy(pm8001_ha->sas_addr, &pm8001_ha->phy[0].dev_sas_addr,
- SAS_ADDR_SIZE);
-#endif
+
return 0;
}
@@ -763,13 +794,13 @@ static int pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
*/
static int pm8001_get_phy_settings_info(struct pm8001_hba_info *pm8001_ha)
{
-
-#ifdef PM8001_READ_VPD
- /*OPTION ROM FLASH read for the SPC cards */
DECLARE_COMPLETION_ONSTACK(completion);
struct pm8001_ioctl_payload payload;
int rc;
+ if (!pm8001_read_wwn)
+ return 0;
+
pm8001_ha->nvmd_completion = &completion;
/* SAS ADDRESS read from flash / EEPROM */
payload.minor_function = 6;
@@ -788,7 +819,7 @@ static int pm8001_get_phy_settings_info(struct pm8001_hba_info *pm8001_ha)
wait_for_completion(&completion);
pm8001_set_phy_profile(pm8001_ha, sizeof(u8), payload.func_specific);
kfree(payload.func_specific);
-#endif
+
return 0;
}
@@ -939,7 +970,6 @@ static int pm8001_configure_phy_settings(struct pm8001_hba_info *pm8001_ha)
}
}
-#ifdef PM8001_USE_MSIX
/**
* pm8001_setup_msix - enable MSI-X interrupt
* @pm8001_ha: our ha struct.
@@ -1021,7 +1051,6 @@ static u32 pm8001_request_msix(struct pm8001_hba_info *pm8001_ha)
return rc;
}
-#endif
/**
* pm8001_request_irq - register interrupt
@@ -1030,10 +1059,9 @@ static u32 pm8001_request_msix(struct pm8001_hba_info *pm8001_ha)
static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha)
{
struct pci_dev *pdev = pm8001_ha->pdev;
-#ifdef PM8001_USE_MSIX
int rc;
- if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) {
+ if (pm8001_use_msix && pci_find_capability(pdev, PCI_CAP_ID_MSIX)) {
rc = pm8001_setup_msix(pm8001_ha);
if (rc) {
pm8001_dbg(pm8001_ha, FAIL,
@@ -1041,14 +1069,22 @@ static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha)
return rc;
}
- if (pdev->msix_cap && pci_msi_enabled())
- return pm8001_request_msix(pm8001_ha);
+ if (!pdev->msix_cap || !pci_msi_enabled())
+ goto use_intx;
+
+ rc = pm8001_request_msix(pm8001_ha);
+ if (rc)
+ return rc;
+
+ pm8001_ha->use_msix = true;
+
+ return 0;
}
+use_intx:
+ /* Initialize the INT-X interrupt */
pm8001_dbg(pm8001_ha, INIT, "MSIX not supported!!!\n");
-#endif
-
- /* initialize the INT-X interrupt */
+ pm8001_ha->use_msix = false;
pm8001_ha->irq_vector[0].irq_id = 0;
pm8001_ha->irq_vector[0].drv_inst = pm8001_ha;
@@ -1057,6 +1093,26 @@ static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha)
SHOST_TO_SAS_HA(pm8001_ha->shost));
}
+static void pm8001_free_irq(struct pm8001_hba_info *pm8001_ha)
+{
+ struct pci_dev *pdev = pm8001_ha->pdev;
+ int i;
+
+ if (pm8001_ha->use_msix) {
+ for (i = 0; i < pm8001_ha->number_of_intr; i++)
+ synchronize_irq(pci_irq_vector(pdev, i));
+
+ for (i = 0; i < pm8001_ha->number_of_intr; i++)
+ free_irq(pci_irq_vector(pdev, i), &pm8001_ha->irq_vector[i]);
+
+ pci_free_irq_vectors(pdev);
+ return;
+ }
+
+ /* INT-X */
+ free_irq(pm8001_ha->irq, pm8001_ha->sas);
+}
+
/**
* pm8001_pci_probe - probe supported device
* @pdev: pci device which kernel has been prepared for.
@@ -1252,33 +1308,17 @@ err_out:
static void pm8001_pci_remove(struct pci_dev *pdev)
{
struct sas_ha_struct *sha = pci_get_drvdata(pdev);
- struct pm8001_hba_info *pm8001_ha;
- int i, j;
- pm8001_ha = sha->lldd_ha;
+ struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
+ int i;
+
sas_unregister_ha(sha);
sas_remove_host(pm8001_ha->shost);
list_del(&pm8001_ha->list);
PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF);
PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha);
-#ifdef PM8001_USE_MSIX
- for (i = 0; i < pm8001_ha->number_of_intr; i++)
- synchronize_irq(pci_irq_vector(pdev, i));
- for (i = 0; i < pm8001_ha->number_of_intr; i++)
- free_irq(pci_irq_vector(pdev, i), &pm8001_ha->irq_vector[i]);
- pci_free_irq_vectors(pdev);
-#else
- free_irq(pm8001_ha->irq, sha);
-#endif
-#ifdef PM8001_USE_TASKLET
- /* For non-msix and msix interrupts */
- if ((!pdev->msix_cap || !pci_msi_enabled()) ||
- (pm8001_ha->chip_id == chip_8001))
- tasklet_kill(&pm8001_ha->tasklet[0]);
- else
- for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
- tasklet_kill(&pm8001_ha->tasklet[j]);
-#endif
+ pm8001_free_irq(pm8001_ha);
+ pm8001_kill_tasklet(pm8001_ha);
scsi_host_put(pm8001_ha->shost);
for (i = 0; i < pm8001_ha->ccb_count; i++) {
@@ -1309,7 +1349,7 @@ static int __maybe_unused pm8001_pci_suspend(struct device *dev)
struct pci_dev *pdev = to_pci_dev(dev);
struct sas_ha_struct *sha = pci_get_drvdata(pdev);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
- int i, j;
+
sas_suspend_ha(sha);
flush_workqueue(pm8001_wq);
scsi_block_requests(pm8001_ha->shost);
@@ -1319,24 +1359,10 @@ static int __maybe_unused pm8001_pci_suspend(struct device *dev)
}
PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF);
PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha);
-#ifdef PM8001_USE_MSIX
- for (i = 0; i < pm8001_ha->number_of_intr; i++)
- synchronize_irq(pci_irq_vector(pdev, i));
- for (i = 0; i < pm8001_ha->number_of_intr; i++)
- free_irq(pci_irq_vector(pdev, i), &pm8001_ha->irq_vector[i]);
- pci_free_irq_vectors(pdev);
-#else
- free_irq(pm8001_ha->irq, sha);
-#endif
-#ifdef PM8001_USE_TASKLET
- /* For non-msix and msix interrupts */
- if ((!pdev->msix_cap || !pci_msi_enabled()) ||
- (pm8001_ha->chip_id == chip_8001))
- tasklet_kill(&pm8001_ha->tasklet[0]);
- else
- for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
- tasklet_kill(&pm8001_ha->tasklet[j]);
-#endif
+
+ pm8001_free_irq(pm8001_ha);
+ pm8001_kill_tasklet(pm8001_ha);
+
pm8001_info(pm8001_ha, "pdev=0x%p, slot=%s, entering "
"suspended state\n", pdev,
pm8001_ha->name);
@@ -1355,7 +1381,7 @@ static int __maybe_unused pm8001_pci_resume(struct device *dev)
struct sas_ha_struct *sha = pci_get_drvdata(pdev);
struct pm8001_hba_info *pm8001_ha;
int rc;
- u8 i = 0, j;
+ u8 i = 0;
DECLARE_COMPLETION_ONSTACK(completion);
pm8001_ha = sha->lldd_ha;
@@ -1383,17 +1409,9 @@ static int __maybe_unused pm8001_pci_resume(struct device *dev)
rc = pm8001_request_irq(pm8001_ha);
if (rc)
goto err_out_disable;
-#ifdef PM8001_USE_TASKLET
- /* Tasklet for non msi-x interrupt handler */
- if ((!pdev->msix_cap || !pci_msi_enabled()) ||
- (pm8001_ha->chip_id == chip_8001))
- tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet,
- (unsigned long)&(pm8001_ha->irq_vector[0]));
- else
- for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
- tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet,
- (unsigned long)&(pm8001_ha->irq_vector[j]));
-#endif
+
+ pm8001_init_tasklet(pm8001_ha);
+
PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, 0);
if (pm8001_ha->chip_id != chip_8001) {
for (i = 1; i < pm8001_ha->number_of_intr; i++)
@@ -1525,6 +1543,9 @@ 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;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-13 03:48:16 +0000