1 files changed, 144 insertions, 0 deletions
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic.h b/drivers/net/ethernet/meta/fbnic/fbnic.h
new file mode 100644
index 000000000000..ad2689bfd6cb
--- /dev/null
+++ b/drivers/net/ethernet/meta/fbnic/fbnic.h
@@ -0,0 +1,144 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Meta Platforms, Inc. and affiliates. */
+
+#ifndef _FBNIC_H_
+#define _FBNIC_H_
+
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
+#include "fbnic_csr.h"
+#include "fbnic_fw.h"
+#include "fbnic_mac.h"
+#include "fbnic_rpc.h"
+
+struct fbnic_dev {
+	struct device *dev;
+	struct net_device *netdev;
+
+	u32 __iomem *uc_addr0;
+	u32 __iomem *uc_addr4;
+	const struct fbnic_mac *mac;
+	unsigned int fw_msix_vector;
+	unsigned int pcs_msix_vector;
+	unsigned short num_irqs;
+
+	struct delayed_work service_task;
+
+	struct fbnic_fw_mbx mbx[FBNIC_IPC_MBX_INDICES];
+	struct fbnic_fw_cap fw_cap;
+	/* Lock protecting Tx Mailbox queue to prevent possible races */
+	spinlock_t fw_tx_lock;
+
+	unsigned long last_heartbeat_request;
+	unsigned long last_heartbeat_response;
+	u8 fw_heartbeat_enabled;
+
+	u64 dsn;
+	u32 mps;
+	u32 readrq;
+
+	/* Local copy of the devices TCAM */
+	struct fbnic_act_tcam act_tcam[FBNIC_RPC_TCAM_ACT_NUM_ENTRIES];
+	struct fbnic_mac_addr mac_addr[FBNIC_RPC_TCAM_MACDA_NUM_ENTRIES];
+	u8 mac_addr_boundary;
+
+	/* Number of TCQs/RCQs available on hardware */
+	u16 max_num_queues;
+};
+
+/* Reserve entry 0 in the MSI-X "others" array until we have filled all
+ * 32 of the possible interrupt slots. By doing this we can avoid any
+ * potential conflicts should we need to enable one of the debug interrupt
+ * causes later.
+ */
+enum {
+	FBNIC_FW_MSIX_ENTRY,
+	FBNIC_PCS_MSIX_ENTRY,
+	FBNIC_NON_NAPI_VECTORS
+};
+
+static inline bool fbnic_present(struct fbnic_dev *fbd)
+{
+	return !!READ_ONCE(fbd->uc_addr0);
+}
+
+static inline void fbnic_wr32(struct fbnic_dev *fbd, u32 reg, u32 val)
+{
+	u32 __iomem *csr = READ_ONCE(fbd->uc_addr0);
+
+	if (csr)
+		writel(val, csr + reg);
+}
+
+u32 fbnic_rd32(struct fbnic_dev *fbd, u32 reg);
+
+static inline void fbnic_wrfl(struct fbnic_dev *fbd)
+{
+	fbnic_rd32(fbd, FBNIC_MASTER_SPARE_0);
+}
+
+static inline void
+fbnic_rmw32(struct fbnic_dev *fbd, u32 reg, u32 mask, u32 val)
+{
+	u32 v;
+
+	v = fbnic_rd32(fbd, reg);
+	v &= ~mask;
+	v |= val;
+	fbnic_wr32(fbd, reg, v);
+}
+
+#define wr32(_f, _r, _v)	fbnic_wr32(_f, _r, _v)
+#define rd32(_f, _r)		fbnic_rd32(_f, _r)
+#define wrfl(_f)		fbnic_wrfl(_f)
+
+bool fbnic_fw_present(struct fbnic_dev *fbd);
+u32 fbnic_fw_rd32(struct fbnic_dev *fbd, u32 reg);
+void fbnic_fw_wr32(struct fbnic_dev *fbd, u32 reg, u32 val);
+
+#define fw_rd32(_f, _r)		fbnic_fw_rd32(_f, _r)
+#define fw_wr32(_f, _r, _v)	fbnic_fw_wr32(_f, _r, _v)
+#define fw_wrfl(_f)		fbnic_fw_rd32(_f, FBNIC_FW_ZERO_REG)
+
+static inline bool fbnic_bmc_present(struct fbnic_dev *fbd)
+{
+	return fbd->fw_cap.bmc_present;
+}
+
+static inline bool fbnic_init_failure(struct fbnic_dev *fbd)
+{
+	return !fbd->netdev;
+}
+
+extern char fbnic_driver_name[];
+
+void fbnic_devlink_free(struct fbnic_dev *fbd);
+struct fbnic_dev *fbnic_devlink_alloc(struct pci_dev *pdev);
+void fbnic_devlink_register(struct fbnic_dev *fbd);
+void fbnic_devlink_unregister(struct fbnic_dev *fbd);
+
+int fbnic_fw_enable_mbx(struct fbnic_dev *fbd);
+void fbnic_fw_disable_mbx(struct fbnic_dev *fbd);
+
+int fbnic_pcs_irq_enable(struct fbnic_dev *fbd);
+void fbnic_pcs_irq_disable(struct fbnic_dev *fbd);
+
+int fbnic_request_irq(struct fbnic_dev *dev, int nr, irq_handler_t handler,
+		      unsigned long flags, const char *name, void *data);
+void fbnic_free_irq(struct fbnic_dev *dev, int nr, void *data);
+void fbnic_free_irqs(struct fbnic_dev *fbd);
+int fbnic_alloc_irqs(struct fbnic_dev *fbd);
+
+enum fbnic_boards {
+	fbnic_board_asic
+};
+
+struct fbnic_info {
+	unsigned int max_num_queues;
+	unsigned int bar_mask;
+};
+
+#endif /* _FBNIC_H_ */