diff options
author | Huazhong Tan | 2018-11-09 15:07:55 +0100 |
---|---|---|
committer | David S. Miller | 2018-11-10 01:47:35 +0100 |
commit | 862d969a3a4dcd80e92fdb09d6eab2c3149eb582 (patch) | |
tree | abafdf02bb07ce106bf0899f700cc421ed152a8e /drivers/net/ethernet/hisilicon/hns3/hns3vf | |
parent | net: hns3: add PCIe FLR support for PF (diff) | |
download | kernel-qcow2-linux-862d969a3a4dcd80e92fdb09d6eab2c3149eb582.tar.gz kernel-qcow2-linux-862d969a3a4dcd80e92fdb09d6eab2c3149eb582.tar.xz kernel-qcow2-linux-862d969a3a4dcd80e92fdb09d6eab2c3149eb582.zip |
net: hns3: do VF's pci re-initialization while PF doing FLR
While doing PF FLR, VF's PCIe configuration space will be cleared, so
the pci and vector of VF should be re-initialized in the VF's reset
process while PF doing FLR.
Also, this patch fixes some memory not freed problem when pci
re-initialization is done during reset process.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3vf')
-rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 57 | ||||
-rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h | 1 |
2 files changed, 55 insertions, 3 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index 4dfac6c0cece..8f1c681d96ef 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -1766,6 +1766,7 @@ static int hclgevf_init_msi(struct hclgevf_dev *hdev) hdev->vector_irq = devm_kcalloc(&pdev->dev, hdev->num_msi, sizeof(int), GFP_KERNEL); if (!hdev->vector_irq) { + devm_kfree(&pdev->dev, hdev->vector_status); pci_free_irq_vectors(pdev); return -ENOMEM; } @@ -1777,6 +1778,8 @@ static void hclgevf_uninit_msi(struct hclgevf_dev *hdev) { struct pci_dev *pdev = hdev->pdev; + devm_kfree(&pdev->dev, hdev->vector_status); + devm_kfree(&pdev->dev, hdev->vector_irq); pci_free_irq_vectors(pdev); } @@ -2001,11 +2004,52 @@ static int hclgevf_query_vf_resource(struct hclgevf_dev *hdev) return 0; } +static int hclgevf_pci_reset(struct hclgevf_dev *hdev) +{ + struct pci_dev *pdev = hdev->pdev; + int ret = 0; + + if (hdev->reset_type == HNAE3_VF_FULL_RESET && + test_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state)) { + hclgevf_misc_irq_uninit(hdev); + hclgevf_uninit_msi(hdev); + clear_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state); + } + + if (!test_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state)) { + pci_set_master(pdev); + ret = hclgevf_init_msi(hdev); + if (ret) { + dev_err(&pdev->dev, + "failed(%d) to init MSI/MSI-X\n", ret); + return ret; + } + + ret = hclgevf_misc_irq_init(hdev); + if (ret) { + hclgevf_uninit_msi(hdev); + dev_err(&pdev->dev, "failed(%d) to init Misc IRQ(vector0)\n", + ret); + return ret; + } + + set_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state); + } + + return ret; +} + static int hclgevf_reset_hdev(struct hclgevf_dev *hdev) { struct pci_dev *pdev = hdev->pdev; int ret; + ret = hclgevf_pci_reset(hdev); + if (ret) { + dev_err(&pdev->dev, "pci reset failed %d\n", ret); + return ret; + } + ret = hclgevf_cmd_init(hdev); if (ret) { dev_err(&pdev->dev, "cmd failed %d\n", ret); @@ -2076,6 +2120,8 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev) goto err_misc_irq_init; } + set_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state); + ret = hclgevf_configure(hdev); if (ret) { dev_err(&pdev->dev, "failed(%d) to fetch configuration\n", ret); @@ -2123,16 +2169,21 @@ err_cmd_init: hclgevf_cmd_uninit(hdev); err_cmd_queue_init: hclgevf_pci_uninit(hdev); + clear_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state); return ret; } static void hclgevf_uninit_hdev(struct hclgevf_dev *hdev) { hclgevf_state_uninit(hdev); - hclgevf_misc_irq_uninit(hdev); + + if (test_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state)) { + hclgevf_misc_irq_uninit(hdev); + hclgevf_uninit_msi(hdev); + hclgevf_pci_uninit(hdev); + } + hclgevf_cmd_uninit(hdev); - hclgevf_uninit_msi(hdev); - hclgevf_pci_uninit(hdev); } static int hclgevf_init_ae_dev(struct hnae3_ae_dev *ae_dev) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h index ffe3d495376c..028c52ecb6b9 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h @@ -73,6 +73,7 @@ enum hclgevf_states { /* device states */ HCLGEVF_STATE_DOWN, HCLGEVF_STATE_DISABLED, + HCLGEVF_STATE_IRQ_INITED, /* task states */ HCLGEVF_STATE_SERVICE_SCHED, HCLGEVF_STATE_RST_SERVICE_SCHED, |