1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_auxr.h b/drivers/net/ethernet/broadcom/bnge/bnge_auxr.h
new file mode 100644
index 000000000000..6c5c15ef2b0a
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/bnge/bnge_auxr.h
@@ -0,0 +1,84 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2025 Broadcom */
+
+#ifndef _BNGE_AUXR_H_
+#define _BNGE_AUXR_H_
+
+#include <linux/auxiliary_bus.h>
+
+#define BNGE_MIN_ROCE_CP_RINGS	2
+#define BNGE_MIN_ROCE_STAT_CTXS	1
+
+#define BNGE_MAX_ROCE_MSIX	64
+
+struct hwrm_async_event_cmpl;
+struct bnge;
+
+struct bnge_msix_info {
+	u32	vector;
+	u32	ring_idx;
+	u32	db_offset;
+};
+
+struct bnge_fw_msg {
+	void	*msg;
+	int	msg_len;
+	void	*resp;
+	int	resp_max_len;
+	int	timeout;
+};
+
+struct bnge_auxr_info {
+	void		*handle;
+	u16		msix_requested;
+};
+
+enum {
+	BNGE_ARDEV_ROCEV1_SUPP		= BIT(0),
+	BNGE_ARDEV_ROCEV2_SUPP		= BIT(1),
+	BNGE_ARDEV_MSIX_ALLOC		= BIT(2),
+};
+
+#define BNGE_ARDEV_ROCE_SUPP	(BNGE_ARDEV_ROCEV1_SUPP | \
+				 BNGE_ARDEV_ROCEV2_SUPP)
+
+struct bnge_auxr_dev {
+	struct net_device	*net;
+	struct pci_dev		*pdev;
+	void __iomem		*bar0;
+
+	struct bnge_msix_info	msix_info[BNGE_MAX_ROCE_MSIX];
+
+	u32 flags;
+
+	struct bnge_auxr_info	*auxr_info;
+
+	/* Doorbell BAR size in bytes mapped by L2 driver. */
+	int	l2_db_size;
+	/* Doorbell BAR size in bytes mapped as non-cacheable. */
+	int	l2_db_size_nc;
+	/* Doorbell offset in bytes within l2_db_size_nc. */
+	int	l2_db_offset;
+
+	u16		chip_num;
+	u16		hw_ring_stats_size;
+	u16		pf_port_id;
+	unsigned long	en_state;
+
+	u16	auxr_num_msix_vec;
+	u16	auxr_num_ctxs;
+
+	/* serialize auxr operations */
+	struct mutex	auxr_dev_lock;
+};
+
+void bnge_rdma_aux_device_uninit(struct bnge_dev *bdev);
+void bnge_rdma_aux_device_del(struct bnge_dev *bdev);
+void bnge_rdma_aux_device_add(struct bnge_dev *bdev);
+void bnge_rdma_aux_device_init(struct bnge_dev *bdev);
+int bnge_register_dev(struct bnge_auxr_dev *adev,
+		      void *handle);
+void bnge_unregister_dev(struct bnge_auxr_dev *adev);
+int bnge_send_msg(struct bnge_auxr_dev *adev, struct bnge_fw_msg *fw_msg);
+
+#endif /* _BNGE_AUXR_H_ */