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path: root/drivers/infiniband
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Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/cxgb4/device.c46
-rw-r--r--drivers/infiniband/hw/cxgb4/iw_cxgb4.h1
-rw-r--r--drivers/infiniband/hw/cxgb4/provider.c2
3 files changed, 39 insertions, 10 deletions
diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c
index c7e2484..d870f9c 100644
--- a/drivers/infiniband/hw/cxgb4/device.c
+++ b/drivers/infiniband/hw/cxgb4/device.c
@@ -306,7 +306,8 @@ static void c4iw_remove(struct c4iw_dev *dev)
PDBG("%s c4iw_dev %p\n", __func__, dev);
cancel_delayed_work_sync(&dev->db_drop_task);
list_del(&dev->entry);
- c4iw_unregister_device(dev);
+ if (dev->registered)
+ c4iw_unregister_device(dev);
c4iw_rdev_close(&dev->rdev);
idr_destroy(&dev->cqidr);
idr_destroy(&dev->qpidr);
@@ -343,12 +344,6 @@ static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop)
list_add_tail(&devp->entry, &dev_list);
mutex_unlock(&dev_mutex);
- if (c4iw_register_device(devp)) {
- printk(KERN_ERR MOD "Unable to register device\n");
- mutex_lock(&dev_mutex);
- c4iw_remove(devp);
- mutex_unlock(&dev_mutex);
- }
if (c4iw_debugfs_root) {
devp->debugfs_root = debugfs_create_dir(
pci_name(devp->rdev.lldi.pdev),
@@ -379,9 +374,6 @@ static void *c4iw_uld_add(const struct cxgb4_lld_info *infop)
for (i = 0; i < dev->rdev.lldi.nrxq; i++)
PDBG("rxqid[%u] %u\n", i, dev->rdev.lldi.rxq_ids[i]);
-
- printk(KERN_INFO MOD "Initialized device %s\n",
- pci_name(dev->rdev.lldi.pdev));
out:
return dev;
}
@@ -471,7 +463,41 @@ nomem:
static int c4iw_uld_state_change(void *handle, enum cxgb4_state new_state)
{
+ struct c4iw_dev *dev = handle;
+
PDBG("%s new_state %u\n", __func__, new_state);
+ switch (new_state) {
+ case CXGB4_STATE_UP:
+ printk(KERN_INFO MOD "%s: Up\n", pci_name(dev->rdev.lldi.pdev));
+ if (!dev->registered) {
+ int ret;
+ ret = c4iw_register_device(dev);
+ if (ret)
+ printk(KERN_ERR MOD
+ "%s: RDMA registration failed: %d\n",
+ pci_name(dev->rdev.lldi.pdev), ret);
+ }
+ break;
+ case CXGB4_STATE_DOWN:
+ printk(KERN_INFO MOD "%s: Down\n",
+ pci_name(dev->rdev.lldi.pdev));
+ if (dev->registered)
+ c4iw_unregister_device(dev);
+ break;
+ case CXGB4_STATE_START_RECOVERY:
+ printk(KERN_INFO MOD "%s: Fatal Error\n",
+ pci_name(dev->rdev.lldi.pdev));
+ if (dev->registered)
+ c4iw_unregister_device(dev);
+ break;
+ case CXGB4_STATE_DETACH:
+ printk(KERN_INFO MOD "%s: Detach\n",
+ pci_name(dev->rdev.lldi.pdev));
+ mutex_lock(&dev_mutex);
+ c4iw_remove(dev);
+ mutex_unlock(&dev_mutex);
+ break;
+ }
return 0;
}
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
index a626998..277ab58 100644
--- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -152,6 +152,7 @@ struct c4iw_dev {
struct list_head entry;
struct delayed_work db_drop_task;
struct dentry *debugfs_root;
+ u8 registered;
};
static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev)
diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
index dfc4902..322134b 100644
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -496,6 +496,7 @@ int c4iw_register_device(struct c4iw_dev *dev)
if (ret)
goto bail2;
}
+ dev->registered = 1;
return 0;
bail2:
ib_unregister_device(&dev->ibdev);
@@ -514,5 +515,6 @@ void c4iw_unregister_device(struct c4iw_dev *dev)
c4iw_class_attributes[i]);
ib_unregister_device(&dev->ibdev);
kfree(dev->ibdev.iwcm);
+ dev->registered = 0;
return;
}