[PATCH 19/25] scsi: hisi_sas: add bcast interrupt handler

John Garry
2015-10-12T15:05:37Z

This is for expander broadcast event.

Signed-off-by: John Garry <john.garry@huawei.com>
---
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index 2de54a7..2ad2ffa 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -1370,6 +1370,35 @@ end:
return res;
}

+static irqreturn_t int_bcast_v1_hw(int irq, void *p)
+{
+ struct hisi_sas_phy *phy = p;
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+ u32 irq_value;
+ irqreturn_t res = IRQ_HANDLED;
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ int phy_no = sas_phy->id;
+ struct sas_ha_struct *sha = &hisi_hba->sha;
+ struct device *dev = &hisi_hba->pdev->dev;
+
+ irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2);
+
+ if (!(irq_value & CHL_INT2_SL_RX_BC_ACK_MSK)) {
+ dev_err(dev, "bcast: irq_value = %x not set enable bit",
+ irq_value);
+ res = IRQ_NONE;
+ goto end;
+ }
+
+ sha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
+
+end:
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2,
+ CHL_INT2_SL_RX_BC_ACK_MSK);
+
+ return res;
+}
+
static irqreturn_t int_abnormal_v1_hw(int irq, void *p)
{
struct hisi_sas_phy *phy = p;
@@ -1478,6 +1507,7 @@ static irqreturn_t cq_interrupt_v1_hw(int irq, void *p)
}

static const char phy_int_names[HISI_SAS_PHY_INT_NR][32] = {
+ {"Bcast"},
{"Phy Up"},
{"Abnormal"},
};
@@ -1485,6 +1515,7 @@ static const char phy_int_names[HISI_SAS_PHY_INT_NR][32] = {
static const char cq_int_name[32] = "cq";

static irq_handler_t phy_interrupts[HISI_SAS_PHY_INT_NR] = {
+ int_bcast_v1_hw,
int_phyup_v1_hw,
int_abnormal_v1_hw
};
--
1.9.1