RDMA/mana_ib: Add EQ creation for rnic adapter

Create an error EQ for the RNIC adapter.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1712738551-22075-2-git-send-email-kotaranov@linux.microsoft.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

Author: Konstantin Taranov

drivers/infiniband/hw/mana/device.c

@@ -92,15 +92,23 @@ static int mana_ib_probe(struct auxiliary_device *adev,
 		goto deregister_device;
 	}
 
+	ret = mana_ib_create_eqs(dev);
+	if (ret) {
+		ibdev_err(&dev->ib_dev, "Failed to create EQs, ret %d", ret);
+		goto deregister_device;
+	}
+
 	ret = ib_register_device(&dev->ib_dev, "mana_%d",
 				 mdev->gdma_context->dev);
 	if (ret)
-		goto deregister_device;
+		goto destroy_eqs;
 
 	dev_set_drvdata(&adev->dev, dev);
 
 	return 0;
 
+destroy_eqs:
+	mana_ib_destroy_eqs(dev);
 deregister_device:
 	mana_gd_deregister_device(dev->gdma_dev);
 free_ib_device:
@@ -113,9 +121,8 @@ static void mana_ib_remove(struct auxiliary_device *adev)
 	struct mana_ib_dev *dev = dev_get_drvdata(&adev->dev);
 
 	ib_unregister_device(&dev->ib_dev);
-
+	mana_ib_destroy_eqs(dev);
 	mana_gd_deregister_device(dev->gdma_dev);
-
 	ib_dealloc_device(&dev->ib_dev);
 }
 

drivers/infiniband/hw/mana/main.c

@@ -611,3 +611,29 @@ int mana_ib_gd_query_adapter_caps(struct mana_ib_dev *dev)
 
 	return 0;
 }
+
+int mana_ib_create_eqs(struct mana_ib_dev *mdev)
+{
+	struct gdma_context *gc = mdev_to_gc(mdev);
+	struct gdma_queue_spec spec = {};
+	int err;
+
+	spec.type = GDMA_EQ;
+	spec.monitor_avl_buf = false;
+	spec.queue_size = EQ_SIZE;
+	spec.eq.callback = NULL;
+	spec.eq.context = mdev;
+	spec.eq.log2_throttle_limit = LOG2_EQ_THROTTLE;
+	spec.eq.msix_index = 0;
+
+	err = mana_gd_create_mana_eq(&gc->mana_ib, &spec, &mdev->fatal_err_eq);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+void mana_ib_destroy_eqs(struct mana_ib_dev *mdev)
+{
+	mana_gd_destroy_queue(mdev_to_gc(mdev), mdev->fatal_err_eq);
+}

drivers/infiniband/hw/mana/mana_ib.h

@@ -54,6 +54,7 @@ struct mana_ib_queue {
 struct mana_ib_dev {
 	struct ib_device ib_dev;
 	struct gdma_dev *gdma_dev;
+	struct gdma_queue *fatal_err_eq;
 	struct mana_ib_adapter_caps adapter_caps;
 };
 
@@ -233,4 +234,8 @@ int mana_ib_query_gid(struct ib_device *ibdev, u32 port, int index,
 void mana_ib_disassociate_ucontext(struct ib_ucontext *ibcontext);
 
 int mana_ib_gd_query_adapter_caps(struct mana_ib_dev *mdev);
+
+int mana_ib_create_eqs(struct mana_ib_dev *mdev);
+
+void mana_ib_destroy_eqs(struct mana_ib_dev *mdev);
 #endif