2016-04-25 14:38:02

by Tadeusz Struk

Subject: [PATCH] crypto: qat - fix invalid pf2vf_resp_wq logic

The pf2vf_resp_wq is a global so it has to be created at init
and destroyed at exit, instead of per device.

Cc: <[email protected]>

Tested-by: Suresh Marikkannu <[email protected]>
Signed-off-by: Tadeusz Struk <[email protected]>
---
drivers/crypto/qat/qat_common/adf_common_drv.h | 2 ++
drivers/crypto/qat/qat_common/adf_ctl_drv.c | 6 ++++++
drivers/crypto/qat/qat_common/adf_sriov.c | 26 ++++++++++++++++----------
3 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/drivers/crypto/qat/qat_common/adf_common_drv.h b/drivers/crypto/qat/qat_common/adf_common_drv.h
index 557ea36..ff0b37b 100644
--- a/drivers/crypto/qat/qat_common/adf_common_drv.h
+++ b/drivers/crypto/qat/qat_common/adf_common_drv.h
@@ -146,6 +146,8 @@ int adf_init_aer(void);
void adf_exit_aer(void);
int adf_init_vf_wq(void);
void adf_exit_vf_wq(void);
+int adf_init_pf_wq(void);
+void adf_exit_pf_wq(void);
int adf_init_admin_comms(struct adf_accel_dev *accel_dev);
void adf_exit_admin_comms(struct adf_accel_dev *accel_dev);
int adf_send_admin_init(struct adf_accel_dev *accel_dev);
diff --git a/drivers/crypto/qat/qat_common/adf_ctl_drv.c b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
index 116ddda..db21b49 100644
--- a/drivers/crypto/qat/qat_common/adf_ctl_drv.c
+++ b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
@@ -471,6 +471,9 @@ static int __init adf_register_ctl_device_driver(void)
if (adf_init_aer())
goto err_aer;

+ if (adf_init_pf_wq())
+ goto err_pf_wq;
+
if (adf_init_vf_wq())
goto err_vf_wq;

@@ -482,6 +485,8 @@ static int __init adf_register_ctl_device_driver(void)
err_crypto_register:
adf_exit_vf_wq();
err_vf_wq:
+ adf_exit_pf_wq();
+err_pf_wq:
adf_exit_aer();
err_aer:
adf_chr_drv_destroy();
@@ -495,6 +500,7 @@ static void __exit adf_unregister_ctl_device_driver(void)
adf_chr_drv_destroy();
adf_exit_aer();
adf_exit_vf_wq();
+ adf_exit_pf_wq();
qat_crypto_unregister();
adf_clean_vf_map(false);
mutex_destroy(&adf_ctl_lock);
diff --git a/drivers/crypto/qat/qat_common/adf_sriov.c b/drivers/crypto/qat/qat_common/adf_sriov.c
index 4479b0b..4a526e2 100644
--- a/drivers/crypto/qat/qat_common/adf_sriov.c
+++ b/drivers/crypto/qat/qat_common/adf_sriov.c
@@ -119,11 +119,6 @@ static int adf_enable_sriov(struct adf_accel_dev *accel_dev)
int i;
u32 reg;

- /* Workqueue for PF2VF responses */
- pf2vf_resp_wq = create_workqueue("qat_pf2vf_resp_wq");
- if (!pf2vf_resp_wq)
- return -ENOMEM;
-
for (i = 0, vf_info = accel_dev->pf.vf_info; i < totalvfs;
i++, vf_info++) {
/* This ptr will be populated when VFs will be created */
@@ -216,11 +211,6 @@ void adf_disable_sriov(struct adf_accel_dev *accel_dev)

kfree(accel_dev->pf.vf_info);
accel_dev->pf.vf_info = NULL;
-
- if (pf2vf_resp_wq) {
- destroy_workqueue(pf2vf_resp_wq);
- pf2vf_resp_wq = NULL;
- }
}
EXPORT_SYMBOL_GPL(adf_disable_sriov);

@@ -298,3 +288,19 @@ int adf_sriov_configure(struct pci_dev *pdev, int numvfs)
return numvfs;
}
EXPORT_SYMBOL_GPL(adf_sriov_configure);
+
+int __init adf_init_pf_wq(void)
+{
+ /* Workqueue for PF2VF responses */
+ pf2vf_resp_wq = create_workqueue("qat_pf2vf_resp_wq");
+
+ return !pf2vf_resp_wq ? -ENOMEM : 0;
+}
+
+void adf_exit_pf_wq(void)
+{
+ if (pf2vf_resp_wq) {
+ destroy_workqueue(pf2vf_resp_wq);
+ pf2vf_resp_wq = NULL;
+ }
+}
--
2.1.4

2016-04-28 01:21:33

by Herbert Xu

Subject: Re: [PATCH] crypto: qat - fix invalid pf2vf_resp_wq logic

On Mon, Apr 25, 2016 at 07:32:19AM -0700, Tadeusz Struk wrote:
> The pf2vf_resp_wq is a global so it has to be created at init
> and destroyed at exit, instead of per device.
>
> Cc: <[email protected]>
>
> Tested-by: Suresh Marikkannu <[email protected]>
> Signed-off-by: Tadeusz Struk <[email protected]>

Applied.
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt