diff options
Diffstat (limited to 'drivers/rapidio/rio-scan.c')
| -rw-r--r-- | drivers/rapidio/rio-scan.c | 62 |
1 files changed, 20 insertions, 42 deletions
diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c index 02e686b4c19..0a27253c921 100644 --- a/drivers/rapidio/rio-scan.c +++ b/drivers/rapidio/rio-scan.c @@ -31,6 +31,7 @@ #include <linux/module.h> #include <linux/spinlock.h> #include <linux/timer.h> +#include <linux/sched.h> #include <linux/jiffies.h> #include <linux/slab.h> @@ -39,8 +40,6 @@ LIST_HEAD(rio_devices); static LIST_HEAD(rio_switches); -static void rio_enum_timeout(unsigned long); - static void rio_init_em(struct rio_dev *rdev); DEFINE_SPINLOCK(rio_global_list_lock); @@ -49,9 +48,6 @@ static int next_destid = 0; static int next_net = 0; static int next_comptag = 1; -static struct timer_list rio_enum_timer = -TIMER_INITIALIZER(rio_enum_timeout, 0, 0); - static int rio_mport_phys_table[] = { RIO_EFB_PAR_EP_ID, RIO_EFB_PAR_EP_REC_ID, @@ -1234,20 +1230,6 @@ static void rio_build_route_tables(void) } /** - * rio_enum_timeout- Signal that enumeration timed out - * @data: Address of timeout flag. - * - * When the enumeration complete timer expires, set a flag that - * signals to the discovery process that enumeration did not - * complete in a sane amount of time. - */ -static void rio_enum_timeout(unsigned long data) -{ - /* Enumeration timed out, set flag */ - *(int *)data = 1; -} - -/** * rio_disc_mport- Start discovery through a master port * @mport: Master port to send transactions * @@ -1260,34 +1242,33 @@ static void rio_enum_timeout(unsigned long data) int __devinit rio_disc_mport(struct rio_mport *mport) { struct rio_net *net = NULL; - int enum_timeout_flag = 0; + unsigned long to_end; printk(KERN_INFO "RIO: discover master port %d, %s\n", mport->id, mport->name); /* If master port has an active link, allocate net and discover peers */ if (rio_mport_is_active(mport)) { - if (!(net = rio_alloc_net(mport))) { - printk(KERN_ERR "RIO: Failed to allocate new net\n"); - goto bail; - } + pr_debug("RIO: wait for enumeration to complete...\n"); - pr_debug("RIO: wait for enumeration complete..."); - - rio_enum_timer.expires = - jiffies + CONFIG_RAPIDIO_DISC_TIMEOUT * HZ; - rio_enum_timer.data = (unsigned long)&enum_timeout_flag; - add_timer(&rio_enum_timer); - while (!rio_enum_complete(mport)) { - mdelay(1); - if (enum_timeout_flag) { - del_timer_sync(&rio_enum_timer); - goto timeout; - } + to_end = jiffies + CONFIG_RAPIDIO_DISC_TIMEOUT * HZ; + while (time_before(jiffies, to_end)) { + if (rio_enum_complete(mport)) + goto enum_done; + schedule_timeout_uninterruptible(msecs_to_jiffies(10)); } - del_timer_sync(&rio_enum_timer); - pr_debug("done\n"); + pr_debug("RIO: discovery timeout on mport %d %s\n", + mport->id, mport->name); + goto bail; +enum_done: + pr_debug("RIO: ... enumeration done\n"); + + net = rio_alloc_net(mport); + if (!net) { + printk(KERN_ERR "RIO: Failed to allocate new net\n"); + goto bail; + } /* Read DestID assigned by enumerator */ rio_local_read_config_32(mport, RIO_DID_CSR, @@ -1307,9 +1288,6 @@ int __devinit rio_disc_mport(struct rio_mport *mport) } return 0; - - timeout: - pr_debug("timeout\n"); - bail: +bail: return -EBUSY; } |