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i40e/i40evf: Use private workqueue 

As done per ixgbe, use a private workqueue to avoid blocking the
system workqueue.  This avoids some strange side effects when
some other entity is depending on the system work queue.

Change-ID: Ic8ba08f5b03696cf638b21afd25fbae7738d55ee
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jesse Brandeburg 2015-12-22 14:25:08 -08:00 committed by Jeff Kirsher
parent f6d83d1376
commit 2803b16c10
2 changed files with 23 additions and 2 deletions
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15
drivers/net/ethernet/intel/i40e/i40e_main.c
View File

@ -112,6 +112,8 @@ MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
static struct workqueue_struct *i40e_wq;
/**
* i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
* @hw: pointer to the HW structure
@ -297,7 +299,7 @@ static void i40e_service_event_schedule(struct i40e_pf *pf)
if (!test_bit(__I40E_DOWN, &pf->state) &&
!test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) &&
!test_and_set_bit(__I40E_SERVICE_SCHED, &pf->state))
schedule_work(&pf->service_task);
queue_work(i40e_wq, &pf->service_task);
}
/**
@ -11470,6 +11472,16 @@ static int __init i40e_init_module(void)
i40e_driver_string, i40e_driver_version_str);
pr_info("%s: %s\n", i40e_driver_name, i40e_copyright);
/* we will see if single thread per module is enough for now,
* it can't be any worse than using the system workqueue which
* was already single threaded
*/
i40e_wq = create_singlethread_workqueue(i40e_driver_name);
if (!i40e_wq) {
pr_err("%s: Failed to create workqueue\n", i40e_driver_name);
return -ENOMEM;
}
i40e_dbg_init();
return pci_register_driver(&i40e_driver);
}
@ -11484,6 +11496,7 @@ module_init(i40e_init_module);
static void __exit i40e_exit_module(void)
{
pci_unregister_driver(&i40e_driver);
destroy_workqueue(i40e_wq);
i40e_dbg_exit();
}
module_exit(i40e_exit_module);

10
drivers/net/ethernet/intel/i40evf/i40evf_main.c
View File

@ -69,6 +69,8 @@ MODULE_DESCRIPTION("Intel(R) XL710 X710 Virtual Function Network Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
static struct workqueue_struct *i40evf_wq;
/**
* i40evf_allocate_dma_mem_d - OS specific memory alloc for shared code
* @hw: pointer to the HW structure
@ -182,7 +184,7 @@ static void i40evf_tx_timeout(struct net_device *netdev)
if (!(adapter->flags & (I40EVF_FLAG_RESET_PENDING |
I40EVF_FLAG_RESET_NEEDED))) {
adapter->flags |= I40EVF_FLAG_RESET_NEEDED;
schedule_work(&adapter->reset_task);
queue_work(i40evf_wq, &adapter->reset_task);
}
}
@ -2895,6 +2897,11 @@ static int __init i40evf_init_module(void)
pr_info("%s\n", i40evf_copyright);
i40evf_wq = create_singlethread_workqueue(i40evf_driver_name);
if (!i40evf_wq) {
pr_err("%s: Failed to create workqueue\n", i40evf_driver_name);
return -ENOMEM;
}
ret = pci_register_driver(&i40evf_driver);
return ret;
}
@ -2910,6 +2917,7 @@ module_init(i40evf_init_module);
static void __exit i40evf_exit_module(void)
{
pci_unregister_driver(&i40evf_driver);
destroy_workqueue(i40evf_wq);
}
module_exit(i40evf_exit_module);