[SCSI] megaraid_sas: add sysfs for AEN polling
update the sysfs parameter to tell application driver support AEN poll Signed-off-by Bo Yang<bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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c35188377f
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72c4fd36dc
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@ -92,7 +92,7 @@ static DEFINE_MUTEX(megasas_async_queue_mutex);
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static int megasas_poll_wait_aen;
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static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);
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static u32 support_poll_for_event;
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static u32 megasas_dbg_lvl;
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/* define lock for aen poll */
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@ -3431,6 +3431,15 @@ megasas_sysfs_show_release_date(struct device_driver *dd, char *buf)
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static DRIVER_ATTR(release_date, S_IRUGO, megasas_sysfs_show_release_date,
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NULL);
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static ssize_t
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megasas_sysfs_show_support_poll_for_event(struct device_driver *dd, char *buf)
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{
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return sprintf(buf, "%u\n", support_poll_for_event);
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}
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static DRIVER_ATTR(support_poll_for_event, S_IRUGO,
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megasas_sysfs_show_support_poll_for_event, NULL);
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static ssize_t
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megasas_sysfs_show_dbg_lvl(struct device_driver *dd, char *buf)
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{
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@ -3522,6 +3531,8 @@ static int __init megasas_init(void)
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printk(KERN_INFO "megasas: %s %s\n", MEGASAS_VERSION,
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MEGASAS_EXT_VERSION);
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support_poll_for_event = 2;
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memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
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/*
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@ -3554,6 +3565,12 @@ static int __init megasas_init(void)
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&driver_attr_release_date);
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if (rval)
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goto err_dcf_rel_date;
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rval = driver_create_file(&megasas_pci_driver.driver,
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&driver_attr_support_poll_for_event);
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if (rval)
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goto err_dcf_support_poll_for_event;
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rval = driver_create_file(&megasas_pci_driver.driver,
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&driver_attr_dbg_lvl);
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if (rval)
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@ -3569,8 +3586,13 @@ err_dcf_poll_mode_io:
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driver_remove_file(&megasas_pci_driver.driver,
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&driver_attr_dbg_lvl);
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err_dcf_dbg_lvl:
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driver_remove_file(&megasas_pci_driver.driver,
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&driver_attr_support_poll_for_event);
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err_dcf_support_poll_for_event:
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driver_remove_file(&megasas_pci_driver.driver,
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&driver_attr_release_date);
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err_dcf_rel_date:
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driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
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err_dcf_attr_ver:
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