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RDMA/mana_ib: Introduce helpers to create and destroy mana queues

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Intoduce helpers to work with mana ib queues (struct mana_ib_queue).
A queue always consists of umem, gdma_region, and id.
A queue can become a WQ or a CQ.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1711483688-24358-2-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Konstantin Taranov
2024-03-26 13:08:05 -07:00
committed by Leon Romanovsky
parent ca537a3477
commit 46f5be7cd4
2 changed files with 53 additions and 0 deletions
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drivers/infiniband/hw/mana/main.c
+43
View File
@@ -237,6 +237,49 @@ void mana_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
ibdev_dbg(ibdev, "Failed to destroy doorbell page %d\n", ret);
}
int mana_ib_create_queue(struct mana_ib_dev *mdev, u64 addr, u32 size,
struct mana_ib_queue *queue)
{
struct ib_umem *umem;
int err;
queue->umem = NULL;
queue->id = INVALID_QUEUE_ID;
queue->gdma_region = GDMA_INVALID_DMA_REGION;
umem = ib_umem_get(&mdev->ib_dev, addr, size, IB_ACCESS_LOCAL_WRITE);
if (IS_ERR(umem)) {
err = PTR_ERR(umem);
ibdev_dbg(&mdev->ib_dev, "Failed to get umem, %d\n", err);
return err;
}
err = mana_ib_create_zero_offset_dma_region(mdev, umem, &queue->gdma_region);
if (err) {
ibdev_dbg(&mdev->ib_dev, "Failed to create dma region, %d\n", err);
goto free_umem;
}
queue->umem = umem;
ibdev_dbg(&mdev->ib_dev,
"create_dma_region ret %d gdma_region 0x%llx\n",
err, queue->gdma_region);
return 0;
free_umem:
ib_umem_release(umem);
return err;
}
void mana_ib_destroy_queue(struct mana_ib_dev *mdev, struct mana_ib_queue *queue)
{
/* Ignore return code as there is not much we can do about it.
* The error message is printed inside.
*/
mana_ib_gd_destroy_dma_region(mdev, queue->gdma_region);
ib_umem_release(queue->umem);
}
static int
mana_ib_gd_first_dma_region(struct mana_ib_dev *dev,
struct gdma_context *gc,
drivers/infiniband/hw/mana/mana_ib.h
+10
View File
@@ -45,6 +45,12 @@ struct mana_ib_adapter_caps {
u32 max_inline_data_size;
};
struct mana_ib_queue {
struct ib_umem *umem;
u64 gdma_region;
u64 id;
};
struct mana_ib_dev {
struct ib_device ib_dev;
struct gdma_dev *gdma_dev;
@@ -169,6 +175,10 @@ 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_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);
struct ib_wq *mana_ib_create_wq(struct ib_pd *pd,
struct ib_wq_init_attr *init_attr,
struct ib_udata *udata);