RDMA/mana_ib: Take CQ type from the device type

Get CQ type from the used gdma device. The MANA_IB_CREATE_RNIC_CQ
flag is ignored. It was used in older kernel versions where
the mana_ib was shared between ethernet and rnic.

Fixes: d4293f9 ("RDMA/mana_ib: unify mana_ib functions to support any gdma device")
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/20260115093625.177306-1-kotaranov@linux.microsoft.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

Author: Konstantin Taranov

drivers/infiniband/hw/mana/cq.c

@@ -24,6 +24,7 @@ int mana_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
 
 	cq->comp_vector = attr->comp_vector % ibdev->num_comp_vectors;
 	cq->cq_handle = INVALID_MANA_HANDLE;
+	is_rnic_cq = mana_ib_is_rnic(mdev);
 
 	if (udata) {
 		if (udata->inlen < offsetof(struct mana_ib_create_cq, flags))
@@ -35,8 +36,6 @@ int mana_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
 			return err;
 		}
 
-		is_rnic_cq = !!(ucmd.flags & MANA_IB_CREATE_RNIC_CQ);
-
 		if ((!is_rnic_cq && attr->cqe > mdev->adapter_caps.max_qp_wr) ||
 		    attr->cqe > U32_MAX / COMP_ENTRY_SIZE) {
 			ibdev_dbg(ibdev, "CQE %d exceeding limit\n", attr->cqe);
@@ -55,7 +54,6 @@ int mana_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
 							  ibucontext);
 		doorbell = mana_ucontext->doorbell;
 	} else {
-		is_rnic_cq = true;
 		buf_size = MANA_PAGE_ALIGN(roundup_pow_of_two(attr->cqe * COMP_ENTRY_SIZE));
 		cq->cqe = buf_size / COMP_ENTRY_SIZE;
 		err = mana_ib_create_kernel_queue(mdev, buf_size, GDMA_CQ, &cq->queue);

include/uapi/rdma/mana-abi.h

@@ -17,6 +17,9 @@
 #define MANA_IB_UVERBS_ABI_VERSION 1
 
 enum mana_ib_create_cq_flags {
+	/* Reserved for backward compatibility. Legacy
+	 * kernel versions use it to create CQs in RNIC
+	 */
 	MANA_IB_CREATE_RNIC_CQ	= 1 << 0,
 };