From: Mitch Williams Date: Thu, 13 Aug 2015 22:11:32 +0000 (-0700) Subject: i40evf: tweak init timing X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9b32b0b5dded7382c00595180bd5ce4f2f8c3d9b;p=linux-beck.git i40evf: tweak init timing This patch tweaks the init timing of the driver just a little bit to increase stability on load/unload and SR-IOV enable/disable cycles. First, run the init_task loop a little quicker in order to reduce overall init time. Second, stagger the start of the init task based on the device's PCIe function ID. This lessens the impact on the firmware when a whole bunch of VFs are initialized simultaneously, e.g. enabling SR-IOV without the VF driver blacklisted. For single VFs assigned to VMs this will have no effect as the function ID will always be 0. Signed-off-by: Mitch Williams Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c index 49fa71c69128..76df6b2aa74a 100644 --- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c +++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c @@ -2300,8 +2300,7 @@ static void i40evf_init_task(struct work_struct *work) } return; restart: - schedule_delayed_work(&adapter->init_task, - msecs_to_jiffies(50)); + schedule_delayed_work(&adapter->init_task, msecs_to_jiffies(30)); return; err_register: @@ -2434,7 +2433,8 @@ static int i40evf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) INIT_WORK(&adapter->adminq_task, i40evf_adminq_task); INIT_WORK(&adapter->watchdog_task, i40evf_watchdog_task); INIT_DELAYED_WORK(&adapter->init_task, i40evf_init_task); - schedule_delayed_work(&adapter->init_task, 10); + schedule_delayed_work(&adapter->init_task, + msecs_to_jiffies(5 * (pdev->devfn & 0x07))); return 0;