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net: hns3: Add support for misc interrupt

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This patch adds initialization and deinitialization for misc interrupt.
This interrupt will be used to handle reset message(IRQ).

Signed-off-by: qumingguang <qumingguang@huawei.com>
Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lipeng 2017-11-02 20:45:18 +08:00 committed by David S. Miller
parent 3efb960f05
commit 466b0c0039
3 changed files with 81 additions and 0 deletions
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5
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
View File

@ -63,6 +63,11 @@ enum hclge_cmd_status {
HCLGE_ERR_CSQ_ERROR = -3,
};
struct hclge_misc_vector {
u8 __iomem *addr;
int vector_irq;
};
struct hclge_cmq {
struct hclge_cmq_ring csq;
struct hclge_cmq_ring crq;

74
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
View File

@ -2392,11 +2392,71 @@ static void hclge_service_complete(struct hclge_dev *hdev)
clear_bit(HCLGE_STATE_SERVICE_SCHED, &hdev->state);
}
static void hclge_enable_vector(struct hclge_misc_vector *vector, bool enable)
{
writel(enable ? 1 : 0, vector->addr);
}
static irqreturn_t hclge_misc_irq_handle(int irq, void *data)
{
struct hclge_dev *hdev = data;
hclge_enable_vector(&hdev->misc_vector, false);
if (!test_and_set_bit(HCLGE_STATE_SERVICE_SCHED, &hdev->state))
schedule_work(&hdev->service_task);
return IRQ_HANDLED;
}
static void hclge_free_vector(struct hclge_dev *hdev, int vector_id)
{
hdev->vector_status[vector_id] = HCLGE_INVALID_VPORT;
hdev->num_msi_left += 1;
hdev->num_msi_used -= 1;
}
static void hclge_get_misc_vector(struct hclge_dev *hdev)
{
struct hclge_misc_vector *vector = &hdev->misc_vector;
vector->vector_irq = pci_irq_vector(hdev->pdev, 0);
vector->addr = hdev->hw.io_base + HCLGE_MISC_VECTOR_REG_BASE;
hdev->vector_status[0] = 0;
hdev->num_msi_left -= 1;
hdev->num_msi_used += 1;
}
static int hclge_misc_irq_init(struct hclge_dev *hdev)
{
int ret;
hclge_get_misc_vector(hdev);
ret = devm_request_irq(&hdev->pdev->dev,
hdev->misc_vector.vector_irq,
hclge_misc_irq_handle, 0, "hclge_misc", hdev);
if (ret) {
hclge_free_vector(hdev, 0);
dev_err(&hdev->pdev->dev, "request misc irq(%d) fail\n",
hdev->misc_vector.vector_irq);
}
return ret;
}
static void hclge_misc_irq_service_task(struct hclge_dev *hdev)
{
hclge_enable_vector(&hdev->misc_vector, true);
}
static void hclge_service_task(struct work_struct *work)
{
struct hclge_dev *hdev =
container_of(work, struct hclge_dev, service_task);
hclge_misc_irq_service_task(hdev);
hclge_update_speed_duplex(hdev);
hclge_update_link_status(hdev);
hclge_update_stats_for_all(hdev);
@ -4480,6 +4540,14 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
return ret;
}
ret = hclge_misc_irq_init(hdev);
if (ret) {
dev_err(&pdev->dev,
"Misc IRQ(vector0) init error, ret = %d.\n",
ret);
return ret;
}
ret = hclge_alloc_tqps(hdev);
if (ret) {
dev_err(&pdev->dev, "Allocate TQPs error, ret = %d.\n", ret);
@ -4545,6 +4613,9 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
timer_setup(&hdev->service_timer, hclge_service_timer, 0);
INIT_WORK(&hdev->service_task, hclge_service_task);
/* Enable MISC vector(vector0) */
hclge_enable_vector(&hdev->misc_vector, true);
set_bit(HCLGE_STATE_SERVICE_INITED, &hdev->state);
set_bit(HCLGE_STATE_DOWN, &hdev->state);
@ -4577,6 +4648,9 @@ static void hclge_uninit_ae_dev(struct hnae3_ae_dev *ae_dev)
if (mac->phydev)
mdiobus_unregister(mac->mdio_bus);
/* Disable MISC vector(vector0) */
hclge_enable_vector(&hdev->misc_vector, false);
hclge_free_vector(hdev, 0);
hclge_destroy_cmd_queue(&hdev->hw);
hclge_pci_uninit(hdev);
ae_dev->priv = NULL;

2
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
View File

@ -27,6 +27,7 @@
(HCLGE_PF_CFG_BLOCK_SIZE / HCLGE_CFG_RD_LEN_BYTES)
#define HCLGE_VECTOR_REG_BASE 0x20000
#define HCLGE_MISC_VECTOR_REG_BASE 0x20400
#define HCLGE_VECTOR_REG_OFFSET 0x4
#define HCLGE_VECTOR_VF_OFFSET 0x100000
@ -400,6 +401,7 @@ struct hclge_dev {
struct pci_dev *pdev;
struct hnae3_ae_dev *ae_dev;
struct hclge_hw hw;
struct hclge_misc_vector misc_vector;
struct hclge_hw_stats hw_stats;
unsigned long state;