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| author | Shukun Tan <tanshukun1@huawei.com> | 2020-05-09 17:43:57 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-05-15 16:15:02 +1000 |
| commit | 20b291f51802b35d84e20efbf110e8c9a853a22c (patch) | |
| tree | 78ea0b17094cad1540df6a07fe1693404ebee185 /drivers/crypto/hisilicon/qm.h | |
| parent | cfd66a660f73adfd388666f122e998691763aa55 (diff) | |
| download | linux-20b291f51802b35d84e20efbf110e8c9a853a22c.tar.bz2 | |
crypto: hisilicon - refactor module parameter pf_q_num related code
put q_num_set similar code into qm to reduce the redundancy.
Signed-off-by: Shukun Tan <tanshukun1@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/hisilicon/qm.h')
| -rw-r--r-- | drivers/crypto/hisilicon/qm.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/crypto/hisilicon/qm.h b/drivers/crypto/hisilicon/qm.h index 9d17167840f8..d1be8cdc99a3 100644 --- a/drivers/crypto/hisilicon/qm.h +++ b/drivers/crypto/hisilicon/qm.h @@ -8,6 +8,8 @@ #include <linux/module.h> #include <linux/pci.h> +#define QM_QNUM_V1 4096 +#define QM_QNUM_V2 1024 #define QM_MAX_VFS_NUM_V2 63 /* qm user domain */ @@ -252,6 +254,43 @@ struct hisi_qp { struct uacce_queue *uacce_q; }; +static inline int q_num_set(const char *val, const struct kernel_param *kp, + unsigned int device) +{ + struct pci_dev *pdev = pci_get_device(PCI_VENDOR_ID_HUAWEI, + device, NULL); + u32 n, q_num; + u8 rev_id; + int ret; + + if (!val) + return -EINVAL; + + if (!pdev) { + q_num = min_t(u32, QM_QNUM_V1, QM_QNUM_V2); + pr_info("No device found currently, suppose queue number is %d\n", + q_num); + } else { + rev_id = pdev->revision; + switch (rev_id) { + case QM_HW_V1: + q_num = QM_QNUM_V1; + break; + case QM_HW_V2: + q_num = QM_QNUM_V2; + break; + default: + return -EINVAL; + } + } + + ret = kstrtou32(val, 10, &n); + if (ret || !n || n > q_num) + return -EINVAL; + + return param_set_int(val, kp); +} + static inline int vfs_num_set(const char *val, const struct kernel_param *kp) { u32 n; |