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RDMA/mana_ib: helpers to allocate kernel queues

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Introduce helpers to allocate queues for kernel-level use.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/1737394039-28772-4-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Shiraz Saleem <shirazsaleem@microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Konstantin Taranov
2025-02-04 08:27:03 -05:00
committed by Leon Romanovsky
parent 6e1b8bdcd0
commit 1440bdbd9c
3 changed files with 27 additions and 0 deletions
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drivers/infiniband/hw/mana/main.c
+23
View File
@@ -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
View File
@@ -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
View File
@@ -867,6 +867,7 @@ free_q:
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)
{