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crypto: hisilicon/qm - clear all VF configurations in the hardware

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When disabling SR-IOV, clear the configuration of each VF
in the hardware. Do not exit the configuration clearing process
due to the failure of a single VF. Additionally, Clear the VF
configurations before decrementing the PM counter.

Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Weili Qian
2025-09-13 18:57:53 +08:00
committed by Herbert Xu
parent 80736a97cf
commit 64b9642fc2
1 changed files with 12 additions and 13 deletions
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25
drivers/crypto/hisilicon/qm.c
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@@ -3660,19 +3660,19 @@ static int qm_vf_q_assign(struct hisi_qm *qm, u32 num_vfs)
return 0;
}
static int qm_clear_vft_config(struct hisi_qm *qm)
static void qm_clear_vft_config(struct hisi_qm *qm)
{
int ret;
u32 i;
for (i = 1; i <= qm->vfs_num; i++) {
ret = hisi_qm_set_vft(qm, i, 0, 0);
if (ret)
return ret;
}
qm->vfs_num = 0;
/*
* When disabling SR-IOV, clear the configuration of each VF in the hardware
* sequentially. Failure to clear a single VF should not affect the clearing
* operation of other VFs.
*/
for (i = 1; i <= qm->vfs_num; i++)
(void)hisi_qm_set_vft(qm, i, 0, 0);
return 0;
qm->vfs_num = 0;
}
static int qm_func_shaper_enable(struct hisi_qm *qm, u32 fun_index, u32 qos)
@@ -4007,13 +4007,13 @@ int hisi_qm_sriov_enable(struct pci_dev *pdev, int max_vfs)
goto err_put_sync;
}
qm->vfs_num = num_vfs;
ret = pci_enable_sriov(pdev, num_vfs);
if (ret) {
pci_err(pdev, "Can't enable VF!\n");
qm_clear_vft_config(qm);
goto err_put_sync;
}
qm->vfs_num = num_vfs;
pci_info(pdev, "VF enabled, vfs_num(=%d)!\n", num_vfs);
@@ -4048,11 +4048,10 @@ int hisi_qm_sriov_disable(struct pci_dev *pdev, bool is_frozen)
}
pci_disable_sriov(pdev);
qm->vfs_num = 0;
qm_clear_vft_config(qm);
qm_pm_put_sync(qm);
return qm_clear_vft_config(qm);
return 0;
}
EXPORT_SYMBOL_GPL(hisi_qm_sriov_disable);