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| author |   Weili Qian <qianweili@huawei.com> | 2022-08-27 18:27:56 +0800 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2022-09-02 18:38:07 +0800 |
| commit | fa2bf6e35091e66fc83af1aebea06a78a5a2fde4 (patch) | |
| tree | c37b1b43c3b24a8ff1bce7045137bfa19761953d /drivers/crypto | |
| parent | crypto: hisilicon/qm - fix missing put dfx access (diff) | |
| download | linux-dev-fa2bf6e35091e66fc83af1aebea06a78a5a2fde4.tar.xz linux-dev-fa2bf6e35091e66fc83af1aebea06a78a5a2fde4.zip | |
crypto: hisilicon/qm - return failure if vfs_num exceeds total VFs
The accelerator drivers supports users to enable VFs through the
module parameter 'vfs_num'. If the number of VFs to be enabled
exceeds the total VFs, all VFs are enabled. Change it to the same
as enabling VF through the 'sriov_numvfs' file. Returns -ERANGE
if the number of VFs to be enabled exceeds total VFs.
Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/hisilicon/qm.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c index fd9fb159048f..54bbd7fa57cc 100644 --- a/drivers/crypto/hisilicon/qm.c +++ b/drivers/crypto/hisilicon/qm.c @@ -4766,7 +4766,13 @@ int hisi_qm_sriov_enable(struct pci_dev *pdev, int max_vfs) goto err_put_sync; } - num_vfs = min_t(int, max_vfs, total_vfs); + if (max_vfs > total_vfs) { + pci_err(pdev, "%d VFs is more than total VFs %d!\n", max_vfs, total_vfs); + ret = -ERANGE; + goto err_put_sync; + } + + num_vfs = max_vfs; ret = qm_vf_q_assign(qm, num_vfs); if (ret) { pci_err(pdev, "Can't assign queues for VF!\n"); |