4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tadeusz Struk <tadeusz.struk@xxxxxxxxx>
commit 9e209fcfb804da262e38e5cd2e680c47a41f0f95 upstream.
The pf2vf_resp_wq is a global so it has to be created at init
and destroyed at exit, instead of per device.
Tested-by: Suresh Marikkannu <sureshx.marikkannu@xxxxxxxxx>
Signed-off-by: Tadeusz Struk <tadeusz.struk@xxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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(-)
--- a/drivers/crypto/qat/qat_common/adf_common_drv.h
+++ b/drivers/crypto/qat/qat_common/adf_common_drv.h
@@ -145,6 +145,8 @@ int adf_enable_aer(struct adf_accel_dev
void adf_disable_aer(struct adf_accel_dev *accel_dev);
int adf_init_aer(void);
void adf_exit_aer(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);
--- a/drivers/crypto/qat/qat_common/adf_ctl_drv.c
+++ b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
@@ -469,12 +469,17 @@ static int __init adf_register_ctl_devic
if (adf_init_aer())
goto err_aer;
+ if (adf_init_pf_wq())
+ goto err_pf_wq;
+
if (qat_crypto_register())
goto err_crypto_register;
return 0;
err_crypto_register:
+ adf_exit_pf_wq();
+err_pf_wq:
adf_exit_aer();
err_aer:
adf_chr_drv_destroy();
@@ -487,6 +492,7 @@ static void __exit adf_unregister_ctl_de
{
adf_chr_drv_destroy();
adf_exit_aer();
+ adf_exit_pf_wq();
qat_crypto_unregister();
adf_clean_vf_map(false);
mutex_destroy(&adf_ctl_lock);
--- 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_a
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_
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);
@@ -304,3 +294,19 @@ int adf_sriov_configure(struct pci_dev *
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;
+ }
+}
--
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