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authorOr Gerlitz <ogerlitz@voltaire.com>2010-05-05 17:30:10 +0300
committerRoland Dreier <rolandd@cisco.com>2010-05-12 09:30:43 -0700
commit2110f9bf37511df06220bb7e977f417baecf2950 (patch)
tree070e67a58d176a9be9ac22462fb2b7919890e797 /drivers/infiniband
parent0eddb519b9127c73d53db4bf3ec1d45b13f844d1 (diff)
IB/iser: Add asynchronous event handler
Add handler to handle events such as port up and down. This is useful when testing high-availability schemes such as multi-pathing. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/ulp/iser/iscsi_iser.h1
-rw-r--r--drivers/infiniband/ulp/iser/iser_verbs.c16
2 files changed, 16 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h
index 036934cdcb92..53da74b45c75 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.h
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.h
@@ -232,6 +232,7 @@ struct iser_device {
struct ib_cq *tx_cq;
struct ib_mr *mr;
struct tasklet_struct cq_tasklet;
+ struct ib_event_handler event_handler;
struct list_head ig_list; /* entry in ig devices list */
int refcount;
};
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
index b89d76b39a13..b9d6aa102aa5 100644
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -54,6 +54,13 @@ static void iser_qp_event_callback(struct ib_event *cause, void *context)
iser_err("got qp event %d\n",cause->event);
}
+static void iser_event_handler(struct ib_event_handler *handler,
+ struct ib_event *event)
+{
+ iser_err("async event %d on device %s port %d\n", event->event,
+ event->device->name, event->element.port_num);
+}
+
/**
* iser_create_device_ib_res - creates Protection Domain (PD), Completion
* Queue (CQ), DMA Memory Region (DMA MR) with the device associated with
@@ -96,8 +103,15 @@ static int iser_create_device_ib_res(struct iser_device *device)
if (IS_ERR(device->mr))
goto dma_mr_err;
+ INIT_IB_EVENT_HANDLER(&device->event_handler, device->ib_device,
+ iser_event_handler);
+ if (ib_register_event_handler(&device->event_handler))
+ goto handler_err;
+
return 0;
+handler_err:
+ ib_dereg_mr(device->mr);
dma_mr_err:
tasklet_kill(&device->cq_tasklet);
cq_arm_err:
@@ -120,7 +134,7 @@ static void iser_free_device_ib_res(struct iser_device *device)
BUG_ON(device->mr == NULL);
tasklet_kill(&device->cq_tasklet);
-
+ (void)ib_unregister_event_handler(&device->event_handler);
(void)ib_dereg_mr(device->mr);
(void)ib_destroy_cq(device->tx_cq);
(void)ib_destroy_cq(device->rx_cq);