Commit 1440bdbd authored by Konstantin Taranov's avatar Konstantin Taranov Committed by Leon Romanovsky
Browse files

RDMA/mana_ib: helpers to allocate kernel queues 



Introduce helpers to allocate queues for kernel-level use.

Signed-off-by: default avatarKonstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/1737394039-28772-4-git-send-email-kotaranov@linux.microsoft.com


Reviewed-by: default avatarShiraz Saleem <shirazsaleem@microsoft.com>
Reviewed-by: default avatarLong Li <longli@microsoft.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 6e1b8bdc

drivers/infiniband/hw/mana/main.c

+23 −0
Original line number Diff line number Diff line
@@ -240,6 +240,27 @@ void mana_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) 
		ibdev_dbg(ibdev, "Failed to destroy doorbell page %d\n", ret);

}



int mana_ib_create_kernel_queue(struct mana_ib_dev *mdev, u32 size, enum gdma_queue_type type,

				struct mana_ib_queue *queue)

{

	struct gdma_context *gc = mdev_to_gc(mdev);

	struct gdma_queue_spec spec = {};

	int err;



	queue->id = INVALID_QUEUE_ID;

	queue->gdma_region = GDMA_INVALID_DMA_REGION;

	spec.type = type;

	spec.monitor_avl_buf = false;

	spec.queue_size = size;

	err = mana_gd_create_mana_wq_cq(&gc->mana_ib, &spec, &queue->kmem);

	if (err)

		return err;

	/* take ownership into mana_ib from mana */

	queue->gdma_region = queue->kmem->mem_info.dma_region_handle;

	queue->kmem->mem_info.dma_region_handle = GDMA_INVALID_DMA_REGION;

	return 0;

}



int mana_ib_create_queue(struct mana_ib_dev *mdev, u64 addr, u32 size,

			 struct mana_ib_queue *queue)

{
@@ -279,6 +300,8 @@ void mana_ib_destroy_queue(struct mana_ib_dev *mdev, struct mana_ib_queue *queue 
	 */

	mana_ib_gd_destroy_dma_region(mdev, queue->gdma_region);

	ib_umem_release(queue->umem);

	if (queue->kmem)

		mana_gd_destroy_queue(mdev_to_gc(mdev), queue->kmem);

}



static int

drivers/infiniband/hw/mana/mana_ib.h

+3 −0
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ struct mana_ib_adapter_caps { 


struct mana_ib_queue {

	struct ib_umem *umem;

	struct gdma_queue *kmem;

	u64 gdma_region;

	u64 id;

};
@@ -388,6 +389,8 @@ int mana_ib_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem, 
int mana_ib_gd_destroy_dma_region(struct mana_ib_dev *dev,

				  mana_handle_t gdma_region);



int mana_ib_create_kernel_queue(struct mana_ib_dev *mdev, u32 size, enum gdma_queue_type type,

				struct mana_ib_queue *queue);

int mana_ib_create_queue(struct mana_ib_dev *mdev, u64 addr, u32 size,

			 struct mana_ib_queue *queue);

void mana_ib_destroy_queue(struct mana_ib_dev *mdev, struct mana_ib_queue *queue);

drivers/net/ethernet/microsoft/mana/gdma_main.c

+1 −0
Original line number Diff line number Diff line
@@ -867,6 +867,7 @@ int mana_gd_create_mana_wq_cq(struct gdma_dev *gd, 
	kfree(queue);

	return err;

}

EXPORT_SYMBOL_NS(mana_gd_create_mana_wq_cq, "NET_MANA");



void mana_gd_destroy_queue(struct gdma_context *gc, struct gdma_queue *queue)

{