Pull altix-mmr into release branch

[profile/ivi/kernel-adaptation-intel-automotive.git] / drivers / ieee1394 / nodemgr.c

diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index 32abb6d..347ece6 100644 (file)
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -30,7 +30,7 @@
 #include "csr.h"
 #include "nodemgr.h"
 
-static int ignore_drivers = 0;
+static int ignore_drivers;
 module_param(ignore_drivers, int, 0444);
 MODULE_PARM_DESC(ignore_drivers, "Disable automatic probing for drivers.");
 
@@ -64,10 +64,10 @@ static int nodemgr_bus_read(struct csr1212_csr *csr, u64 addr, u16 length,
        struct nodemgr_csr_info *ci = (struct nodemgr_csr_info*)__ci;
        int i, ret = 0;
 
-       for (i = 0; i < 3; i++) {
+       for (i = 1; ; i++) {
                ret = hpsb_read(ci->host, ci->nodeid, ci->generation, addr,
                                buffer, length);
-               if (!ret)
+               if (!ret || i == 3)
                        break;
 
                if (msleep_interruptible(334))
@@ -1068,6 +1068,8 @@ static int nodemgr_hotplug(struct class_device *cdev, char **envp, int num_envp,
        struct unit_directory *ud;
        int i = 0;
        int length = 0;
+       /* ieee1394:venNmoNspNverN */
+       char buf[8 + 1 + 3 + 8 + 2 + 8 + 2 + 8 + 3 + 8 + 1];
 
        if (!cdev)
                return -ENODEV;
@@ -1094,6 +1096,12 @@ do {                                                             \
        PUT_ENVP("GUID=%016Lx", (unsigned long long)ud->ne->guid);
        PUT_ENVP("SPECIFIER_ID=%06x", ud->specifier_id);
        PUT_ENVP("VERSION=%06x", ud->version);
+       snprintf(buf, sizeof(buf), "ieee1394:ven%08Xmo%08Xsp%08Xver%08X",
+                       ud->vendor_id,
+                       ud->model_id,
+                       ud->specifier_id,
+                       ud->version);
+       PUT_ENVP("MODALIAS=%s", buf);
 
 #undef PUT_ENVP
 
@@ -1430,9 +1438,13 @@ static int nodemgr_do_irm_duties(struct hpsb_host *host, int cycles)
        if (host->busmgr_id == 0xffff && host->node_count > 1)
        {
                u16 root_node = host->node_count - 1;
-               struct node_entry *ne = find_entry_by_nodeid(host, root_node | LOCAL_BUS);
 
-               if (ne && ne->busopt.cmc)
+               /* get cycle master capability flag from root node */
+               if (host->is_cycmst ||
+                   (!hpsb_read(host, LOCAL_BUS | root_node, get_hpsb_generation(host),
+                               (CSR_REGISTER_BASE + CSR_CONFIG_ROM + 2 * sizeof(quadlet_t)),
+                               &bc, sizeof(quadlet_t)) &&
+                    be32_to_cpu(bc) & 1 << CSR_CMC_SHIFT))
                        hpsb_send_phy_config(host, root_node, -1);
                else {
                        HPSB_DEBUG("The root node is not cycle master capable; "
@@ -1510,7 +1522,7 @@ static int nodemgr_host_thread(void *__hi)
 
                if (down_interruptible(&hi->reset_sem) ||
                    down_interruptible(&nodemgr_serialize)) {
-                       if (try_to_freeze(PF_FREEZE))
+                       if (try_to_freeze())
                                continue;
                        printk("NodeMgr: received unexpected signal?!\n" );
                        break;
@@ -1549,24 +1561,19 @@ static int nodemgr_host_thread(void *__hi)
                        }
                }
 
-               if (!nodemgr_check_irm_capability(host, reset_cycles)) {
+               if (!nodemgr_check_irm_capability(host, reset_cycles) ||
+                   !nodemgr_do_irm_duties(host, reset_cycles)) {
                        reset_cycles++;
                        up(&nodemgr_serialize);
                        continue;
                }
+               reset_cycles = 0;
 
                /* Scan our nodes to get the bus options and create node
                 * entries. This does not do the sysfs stuff, since that
                 * would trigger hotplug callbacks and such, which is a
                 * bad idea at this point. */
                nodemgr_node_scan(hi, generation);
-               if (!nodemgr_do_irm_duties(host, reset_cycles)) {
-                       reset_cycles++;
-                       up(&nodemgr_serialize);
-                       continue;
-               }
-
-               reset_cycles = 0;
 
                /* This actually does the full probe, with sysfs
                 * registration. */