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ice: Introduce SERVICE_DIS flag and service routine functions 

This patch introduces SERVICE_DIS flag to use for stopping service task.
This flag will be checked before scheduling new tasks. Also add new
functions ice_service_task_stop to stop service task.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Akeem G Abodunrin 2018-08-09 06:29:57 -07:00 committed by Jeff Kirsher
parent 4f74dcc1b8
commit 8d81fa55ba
2 changed files with 28 additions and 7 deletions
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1
drivers/net/ethernet/intel/ice/ice.h
View File

@ -138,6 +138,7 @@ enum ice_state {
__ICE_FLTR_OVERFLOW_PROMISC,
__ICE_CFG_BUSY,
__ICE_SERVICE_SCHED,
__ICE_SERVICE_DIS,
__ICE_STATE_NBITS /* must be last */
};

34
drivers/net/ethernet/intel/ice/ice_main.c
View File

@ -1107,7 +1107,7 @@ static void ice_clean_adminq_subtask(struct ice_pf *pf)
*/
static void ice_service_task_schedule(struct ice_pf *pf)
{
if (!test_bit(__ICE_DOWN, pf->state) &&
if (!test_bit(__ICE_SERVICE_DIS, pf->state) &&
!test_and_set_bit(__ICE_SERVICE_SCHED, pf->state) &&
!test_bit(__ICE_NEEDS_RESTART, pf->state))
queue_work(ice_wq, &pf->serv_task);
@ -1126,6 +1126,22 @@ static void ice_service_task_complete(struct ice_pf *pf)
clear_bit(__ICE_SERVICE_SCHED, pf->state);
}
/**
* ice_service_task_stop - stop service task and cancel works
* @pf: board private structure
*/
static void ice_service_task_stop(struct ice_pf *pf)
{
set_bit(__ICE_SERVICE_DIS, pf->state);
if (pf->serv_tmr.function)
del_timer_sync(&pf->serv_tmr);
if (pf->serv_task.func)
cancel_work_sync(&pf->serv_task);
clear_bit(__ICE_SERVICE_SCHED, pf->state);
}
/**
* ice_service_timer - timer callback to schedule service task
* @t: pointer to timer_list
@ -3389,10 +3405,7 @@ static void ice_determine_q_usage(struct ice_pf *pf)
*/
static void ice_deinit_pf(struct ice_pf *pf)
{
if (pf->serv_tmr.function)
del_timer_sync(&pf->serv_tmr);
if (pf->serv_task.func)
cancel_work_sync(&pf->serv_task);
ice_service_task_stop(pf);
mutex_destroy(&pf->sw_mutex);
mutex_destroy(&pf->avail_q_mutex);
}
@ -3599,6 +3612,8 @@ static int ice_probe(struct pci_dev *pdev,
pf->pdev = pdev;
pci_set_drvdata(pdev, pf);
set_bit(__ICE_DOWN, pf->state);
/* Disable service task until DOWN bit is cleared */
set_bit(__ICE_SERVICE_DIS, pf->state);
hw = &pf->hw;
hw->hw_addr = pcim_iomap_table(pdev)[ICE_BAR0];
@ -3656,6 +3671,9 @@ static int ice_probe(struct pci_dev *pdev,
goto err_init_interrupt_unroll;
}
/* Driver is mostly up */
clear_bit(__ICE_DOWN, pf->state);
/* In case of MSIX we are going to setup the misc vector right here
* to handle admin queue events etc. In case of legacy and MSI
* the misc functionality and queue processing is combined in
@ -3695,8 +3713,7 @@ static int ice_probe(struct pci_dev *pdev,
goto err_alloc_sw_unroll;
}
/* Driver is mostly up */
clear_bit(__ICE_DOWN, pf->state);
clear_bit(__ICE_SERVICE_DIS, pf->state);
/* since everything is good, start the service timer */
mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));
@ -3710,6 +3727,7 @@ static int ice_probe(struct pci_dev *pdev,
return 0;
err_alloc_sw_unroll:
set_bit(__ICE_SERVICE_DIS, pf->state);
set_bit(__ICE_DOWN, pf->state);
devm_kfree(&pf->pdev->dev, pf->first_sw);
err_msix_misc_unroll:
@ -3737,6 +3755,7 @@ static void ice_remove(struct pci_dev *pdev)
return;
set_bit(__ICE_DOWN, pf->state);
ice_service_task_stop(pf);
ice_vsi_release_all(pf);
ice_free_irq_msix_misc(pf);
@ -5996,6 +6015,7 @@ static void ice_tx_timeout(struct net_device *netdev)
netdev_err(netdev, "tx_timeout recovery unsuccessful, device is in unrecoverable state.\n");
set_bit(__ICE_DOWN, pf->state);
set_bit(__ICE_NEEDS_RESTART, vsi->state);
set_bit(__ICE_SERVICE_DIS, pf->state);
break;
}