From 72c4fd36dc7f755a5245ef2495fe27d5084d776d Mon Sep 17 00:00:00 2001 From: "Yang, Bo" Date: Tue, 6 Oct 2009 14:20:59 -0600 Subject: [SCSI] megaraid_sas: add sysfs for AEN polling update the sysfs parameter to tell application driver support AEN poll Signed-off-by Bo Yang Signed-off-by: James Bottomley --- drivers/scsi/megaraid/megaraid_sas.c | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) (limited to 'drivers/scsi/megaraid/megaraid_sas.c') diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c index 0d44fecf367d..012141378f3b 100644 --- a/drivers/scsi/megaraid/megaraid_sas.c +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -92,7 +92,7 @@ static DEFINE_MUTEX(megasas_async_queue_mutex); static int megasas_poll_wait_aen; static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait); - +static u32 support_poll_for_event; static u32 megasas_dbg_lvl; /* define lock for aen poll */ @@ -3431,6 +3431,15 @@ megasas_sysfs_show_release_date(struct device_driver *dd, char *buf) static DRIVER_ATTR(release_date, S_IRUGO, megasas_sysfs_show_release_date, NULL); +static ssize_t +megasas_sysfs_show_support_poll_for_event(struct device_driver *dd, char *buf) +{ + return sprintf(buf, "%u\n", support_poll_for_event); +} + +static DRIVER_ATTR(support_poll_for_event, S_IRUGO, + megasas_sysfs_show_support_poll_for_event, NULL); + static ssize_t megasas_sysfs_show_dbg_lvl(struct device_driver *dd, char *buf) { @@ -3522,6 +3531,8 @@ static int __init megasas_init(void) printk(KERN_INFO "megasas: %s %s\n", MEGASAS_VERSION, MEGASAS_EXT_VERSION); + support_poll_for_event = 2; + memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); /* @@ -3554,6 +3565,12 @@ static int __init megasas_init(void) &driver_attr_release_date); if (rval) goto err_dcf_rel_date; + + rval = driver_create_file(&megasas_pci_driver.driver, + &driver_attr_support_poll_for_event); + if (rval) + goto err_dcf_support_poll_for_event; + rval = driver_create_file(&megasas_pci_driver.driver, &driver_attr_dbg_lvl); if (rval) @@ -3569,8 +3586,13 @@ err_dcf_poll_mode_io: driver_remove_file(&megasas_pci_driver.driver, &driver_attr_dbg_lvl); err_dcf_dbg_lvl: + driver_remove_file(&megasas_pci_driver.driver, + &driver_attr_support_poll_for_event); + +err_dcf_support_poll_for_event: driver_remove_file(&megasas_pci_driver.driver, &driver_attr_release_date); + err_dcf_rel_date: driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); err_dcf_attr_ver: -- cgit v1.2.3