From 837f5fe89c843422452ef5e1a7e3d20e9caa3268 Mon Sep 17 00:00:00 2001 From: "Yang, Bo" Date: Mon, 11 Oct 2010 06:59:20 -0600 Subject: [PATCH] [SCSI] megaraid_sas: support devices update flag Driver added the Device update flag to tell LSI application driver whether to do the device Update. LSI MegaRAID SAS application will check this flag to decide if it needs to update the Device or not. Signed-off-by Bo Yang Signed-off-by: James Bottomley --- drivers/scsi/megaraid/megaraid_sas.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c index d3c9cdee292b..09a455d4b6ed 100644 --- a/drivers/scsi/megaraid/megaraid_sas.c +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -103,6 +103,7 @@ 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; +static u32 support_device_change; /* define lock for aen poll */ spinlock_t poll_aen_lock; @@ -4658,6 +4659,15 @@ megasas_sysfs_show_support_poll_for_event(struct device_driver *dd, char *buf) static DRIVER_ATTR(support_poll_for_event, S_IRUGO, megasas_sysfs_show_support_poll_for_event, NULL); + static ssize_t +megasas_sysfs_show_support_device_change(struct device_driver *dd, char *buf) +{ + return sprintf(buf, "%u\n", support_device_change); +} + +static DRIVER_ATTR(support_device_change, S_IRUGO, + megasas_sysfs_show_support_device_change, NULL); + static ssize_t megasas_sysfs_show_dbg_lvl(struct device_driver *dd, char *buf) { @@ -4978,6 +4988,7 @@ static int __init megasas_init(void) MEGASAS_EXT_VERSION); support_poll_for_event = 2; + support_device_change = 1; memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); @@ -5026,8 +5037,17 @@ static int __init megasas_init(void) if (rval) goto err_dcf_poll_mode_io; + rval = driver_create_file(&megasas_pci_driver.driver, + &driver_attr_support_device_change); + if (rval) + goto err_dcf_support_device_change; + return rval; +err_dcf_support_device_change: + driver_remove_file(&megasas_pci_driver.driver, + &driver_attr_poll_mode_io); + err_dcf_poll_mode_io: driver_remove_file(&megasas_pci_driver.driver, &driver_attr_dbg_lvl); @@ -5057,6 +5077,10 @@ static void __exit megasas_exit(void) &driver_attr_poll_mode_io); driver_remove_file(&megasas_pci_driver.driver, &driver_attr_dbg_lvl); + driver_remove_file(&megasas_pci_driver.driver, + &driver_attr_support_poll_for_event); + driver_remove_file(&megasas_pci_driver.driver, + &driver_attr_support_device_change); driver_remove_file(&megasas_pci_driver.driver, &driver_attr_release_date); driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); -- 2.20.1