From 34ff636f322c6d5e4f0a52338fa63a7dff09a495 Mon Sep 17 00:00:00 2001 From: Joel Fernandes Date: Sat, 18 Jul 2026 13:15:36 -0400 Subject: scftorture: Count single_rpc offline failures in statistics output scf_torture_stats_print() aggregates each invoker thread's counters into a local scf_statistics structure before printing, but the n_single_rpc_ofl field is missing from the aggregation loop. As a result, the "single_rpc_ofl" value printed in the statistics line is always zero, even when smp_call_function_single() invocations for the RPC test have failed due to offline CPUs and been counted by the invoker threads. Add the missing accumulation so that the printed value reflects the actual counts. Signed-off-by: Joel Fernandes Signed-off-by: Paul E. McKenney --- drivers/ssb/pcihost_wrapper.c | 130 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 drivers/ssb/pcihost_wrapper.c (limited to 'drivers/ssb/pcihost_wrapper.c') diff --git a/drivers/ssb/pcihost_wrapper.c b/drivers/ssb/pcihost_wrapper.c new file mode 100644 index 000000000..5b6b5e0e4 --- /dev/null +++ b/drivers/ssb/pcihost_wrapper.c @@ -0,0 +1,130 @@ +/* + * Sonics Silicon Backplane + * PCI Hostdevice wrapper + * + * Copyright (c) 2005 Martin Langer + * Copyright (c) 2005 Stefano Brivio + * Copyright (c) 2005 Danny van Dyk + * Copyright (c) 2005 Andreas Jaggi + * Copyright (c) 2005-2007 Michael Buesch + * + * Licensed under the GNU/GPL. See COPYING for details. + */ + +#include +#include +#include +#include +#include + + +#ifdef CONFIG_PM_SLEEP +static int ssb_pcihost_suspend(struct device *d) +{ + struct pci_dev *dev = to_pci_dev(d); + struct ssb_bus *ssb = pci_get_drvdata(dev); + int err; + + err = ssb_bus_suspend(ssb); + if (err) + return err; + pci_save_state(dev); + pci_disable_device(dev); + + /* if there is a wakeup enabled child device on ssb bus, + enable pci wakeup posibility. */ + device_set_wakeup_enable(d, d->power.wakeup_path); + + pci_prepare_to_sleep(dev); + + return 0; +} + +static int ssb_pcihost_resume(struct device *d) +{ + struct pci_dev *dev = to_pci_dev(d); + struct ssb_bus *ssb = pci_get_drvdata(dev); + int err; + + pci_back_from_sleep(dev); + err = pci_enable_device(dev); + if (err) + return err; + pci_restore_state(dev); + err = ssb_bus_resume(ssb); + if (err) + return err; + + return 0; +} + +static const struct dev_pm_ops ssb_pcihost_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(ssb_pcihost_suspend, ssb_pcihost_resume) +}; + +#endif /* CONFIG_PM_SLEEP */ + +static int ssb_pcihost_probe(struct pci_dev *dev, + const struct pci_device_id *id) +{ + struct ssb_bus *ssb; + int err = -ENOMEM; + u32 val; + + ssb = kzalloc_obj(*ssb); + if (!ssb) + goto out; + err = pci_enable_device(dev); + if (err) + goto err_kfree_ssb; + err = pci_request_regions(dev, dev_driver_string(&dev->dev)); + if (err) + goto err_pci_disable; + pci_set_master(dev); + + /* Disable the RETRY_TIMEOUT register (0x41) to keep + * PCI Tx retries from interfering with C3 CPU state */ + pci_read_config_dword(dev, 0x40, &val); + if ((val & 0x0000ff00) != 0) + pci_write_config_dword(dev, 0x40, val & 0xffff00ff); + + err = ssb_bus_pcibus_register(ssb, dev); + if (err) + goto err_pci_release_regions; + + pci_set_drvdata(dev, ssb); + +out: + return err; + +err_pci_release_regions: + pci_release_regions(dev); +err_pci_disable: + pci_disable_device(dev); +err_kfree_ssb: + kfree(ssb); + return err; +} + +static void ssb_pcihost_remove(struct pci_dev *dev) +{ + struct ssb_bus *ssb = pci_get_drvdata(dev); + + ssb_bus_unregister(ssb); + pci_release_regions(dev); + pci_disable_device(dev); + kfree(ssb); + pci_set_drvdata(dev, NULL); +} + +int ssb_pcihost_register(struct pci_driver *driver) +{ + driver->probe = ssb_pcihost_probe; + driver->remove = ssb_pcihost_remove; +#ifdef CONFIG_PM_SLEEP + driver->driver.pm = &ssb_pcihost_pm_ops; +#endif + + return pci_register_driver(driver); +} +EXPORT_SYMBOL(ssb_pcihost_register); -- cgit v1.3.1