1 files changed, 477 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sp.h b/drivers/net/ethernet/qlogic/qed/qed_sp.h
new file mode 100644
index 000000000..4fb02a557
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_sp.h
@@ -0,0 +1,477 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015-2017  QLogic Corporation
+ * Copyright (c) 2019-2020 Marvell International Ltd.
+ */
+
+#ifndef _QED_SP_H
+#define _QED_SP_H
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/qed/qed_chain.h>
+#include "qed.h"
+#include "qed_hsi.h"
+
+enum spq_mode {
+	QED_SPQ_MODE_BLOCK,     /* Client will poll a designated mem. address */
+	QED_SPQ_MODE_CB,        /* Client supplies a callback */
+	QED_SPQ_MODE_EBLOCK,    /* QED should block until completion */
+};
+
+struct qed_spq_comp_cb {
+	void	(*function)(struct qed_hwfn *p_hwfn,
+			    void *cookie,
+			    union event_ring_data *data,
+			    u8 fw_return_code);
+	void	*cookie;
+};
+
+/**
+ * qed_eth_cqe_completion(): handles the completion of a
+ *                           ramrod on the cqe ring.
+ *
+ * @p_hwfn: HW device data.
+ * @cqe: CQE.
+ *
+ * Return: Int.
+ */
+int qed_eth_cqe_completion(struct qed_hwfn *p_hwfn,
+			   struct eth_slow_path_rx_cqe *cqe);
+
+ /*  QED Slow-hwfn queue interface */
+union ramrod_data {
+	struct pf_start_ramrod_data pf_start;
+	struct pf_update_ramrod_data pf_update;
+	struct rx_queue_start_ramrod_data rx_queue_start;
+	struct rx_queue_update_ramrod_data rx_queue_update;
+	struct rx_queue_stop_ramrod_data rx_queue_stop;
+	struct tx_queue_start_ramrod_data tx_queue_start;
+	struct tx_queue_stop_ramrod_data tx_queue_stop;
+	struct vport_start_ramrod_data vport_start;
+	struct vport_stop_ramrod_data vport_stop;
+	struct rx_update_gft_filter_ramrod_data rx_update_gft;
+	struct vport_update_ramrod_data vport_update;
+	struct core_rx_start_ramrod_data core_rx_queue_start;
+	struct core_rx_stop_ramrod_data core_rx_queue_stop;
+	struct core_tx_start_ramrod_data core_tx_queue_start;
+	struct core_tx_stop_ramrod_data core_tx_queue_stop;
+	struct vport_filter_update_ramrod_data vport_filter_update;
+
+	struct rdma_init_func_ramrod_data rdma_init_func;
+	struct rdma_close_func_ramrod_data rdma_close_func;
+	struct rdma_register_tid_ramrod_data rdma_register_tid;
+	struct rdma_deregister_tid_ramrod_data rdma_deregister_tid;
+	struct roce_create_qp_resp_ramrod_data roce_create_qp_resp;
+	struct roce_create_qp_req_ramrod_data roce_create_qp_req;
+	struct roce_modify_qp_resp_ramrod_data roce_modify_qp_resp;
+	struct roce_modify_qp_req_ramrod_data roce_modify_qp_req;
+	struct roce_query_qp_resp_ramrod_data roce_query_qp_resp;
+	struct roce_query_qp_req_ramrod_data roce_query_qp_req;
+	struct roce_destroy_qp_resp_ramrod_data roce_destroy_qp_resp;
+	struct roce_destroy_qp_req_ramrod_data roce_destroy_qp_req;
+	struct roce_init_func_ramrod_data roce_init_func;
+	struct rdma_create_cq_ramrod_data rdma_create_cq;
+	struct rdma_destroy_cq_ramrod_data rdma_destroy_cq;
+	struct rdma_srq_create_ramrod_data rdma_create_srq;
+	struct rdma_srq_destroy_ramrod_data rdma_destroy_srq;
+	struct rdma_srq_modify_ramrod_data rdma_modify_srq;
+	struct iwarp_create_qp_ramrod_data iwarp_create_qp;
+	struct iwarp_tcp_offload_ramrod_data iwarp_tcp_offload;
+	struct iwarp_mpa_offload_ramrod_data iwarp_mpa_offload;
+	struct iwarp_modify_qp_ramrod_data iwarp_modify_qp;
+	struct iwarp_init_func_ramrod_data iwarp_init_func;
+	struct fcoe_init_ramrod_params fcoe_init;
+	struct fcoe_conn_offload_ramrod_params fcoe_conn_ofld;
+	struct fcoe_conn_terminate_ramrod_params fcoe_conn_terminate;
+	struct fcoe_stat_ramrod_params fcoe_stat;
+
+	struct iscsi_init_ramrod_params iscsi_init;
+	struct iscsi_spe_conn_offload iscsi_conn_offload;
+	struct iscsi_conn_update_ramrod_params iscsi_conn_update;
+	struct iscsi_spe_conn_mac_update iscsi_conn_mac_update;
+	struct iscsi_spe_conn_termination iscsi_conn_terminate;
+
+	struct nvmetcp_init_ramrod_params nvmetcp_init;
+	struct nvmetcp_spe_conn_offload nvmetcp_conn_offload;
+	struct nvmetcp_conn_update_ramrod_params nvmetcp_conn_update;
+	struct nvmetcp_spe_conn_termination nvmetcp_conn_terminate;
+
+	struct vf_start_ramrod_data vf_start;
+	struct vf_stop_ramrod_data vf_stop;
+};
+
+#define EQ_MAX_CREDIT   0xffffffff
+
+enum spq_priority {
+	QED_SPQ_PRIORITY_NORMAL,
+	QED_SPQ_PRIORITY_HIGH,
+};
+
+union qed_spq_req_comp {
+	struct qed_spq_comp_cb	cb;
+	u64			*done_addr;
+};
+
+struct qed_spq_comp_done {
+	unsigned int	done;
+	u8		fw_return_code;
+};
+
+struct qed_spq_entry {
+	struct list_head		list;
+
+	u8				flags;
+
+	/* HSI slow path element */
+	struct slow_path_element	elem;
+
+	union ramrod_data		ramrod;
+
+	enum spq_priority		priority;
+
+	/* pending queue for this entry */
+	struct list_head		*queue;
+
+	enum spq_mode			comp_mode;
+	struct qed_spq_comp_cb		comp_cb;
+	struct qed_spq_comp_done	comp_done; /* SPQ_MODE_EBLOCK */
+
+	/* Posted entry for unlimited list entry in EBLOCK mode */
+	struct qed_spq_entry		*post_ent;
+};
+
+struct qed_eq {
+	struct qed_chain	chain;
+	u8			eq_sb_index;    /* index within the SB */
+	__le16			*p_fw_cons;     /* ptr to index value */
+};
+
+struct qed_consq {
+	struct qed_chain chain;
+};
+
+typedef int (*qed_spq_async_comp_cb)(struct qed_hwfn *p_hwfn, u8 opcode,
+				     __le16 echo, union event_ring_data *data,
+				     u8 fw_return_code);
+
+int
+qed_spq_register_async_cb(struct qed_hwfn *p_hwfn,
+			  enum protocol_type protocol_id,
+			  qed_spq_async_comp_cb cb);
+
+void
+qed_spq_unregister_async_cb(struct qed_hwfn *p_hwfn,
+			    enum protocol_type protocol_id);
+
+struct qed_spq {
+	spinlock_t		lock; /* SPQ lock */
+
+	struct list_head	unlimited_pending;
+	struct list_head	pending;
+	struct list_head	completion_pending;
+	struct list_head	free_pool;
+
+	struct qed_chain	chain;
+
+	/* allocated dma-able memory for spq entries (+ramrod data) */
+	dma_addr_t		p_phys;
+	struct qed_spq_entry	*p_virt;
+
+#define SPQ_RING_SIZE \
+	(CORE_SPQE_PAGE_SIZE_BYTES / sizeof(struct slow_path_element))
+
+	/* Bitmap for handling out-of-order completions */
+	DECLARE_BITMAP(p_comp_bitmap, SPQ_RING_SIZE);
+	u8			comp_bitmap_idx;
+
+	/* Statistics */
+	u32			unlimited_pending_count;
+	u32			normal_count;
+	u32			high_count;
+	u32			comp_sent_count;
+	u32			comp_count;
+
+	u32			cid;
+	u32			db_addr_offset;
+	struct core_db_data	db_data;
+	qed_spq_async_comp_cb	async_comp_cb[MAX_PROTOCOL_TYPE];
+};
+
+/**
+ * qed_spq_post(): Posts a Slow hwfn request to FW, or lacking that
+ *                 Pends it to the future list.
+ *
+ * @p_hwfn: HW device data.
+ * @p_ent: Ent.
+ * @fw_return_code: Return code from firmware.
+ *
+ * Return: Int.
+ */
+int qed_spq_post(struct qed_hwfn *p_hwfn,
+		 struct qed_spq_entry *p_ent,
+		 u8 *fw_return_code);
+
+/**
+ * qed_spq_alloc(): Alloocates & initializes the SPQ and EQ.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Int.
+ */
+int qed_spq_alloc(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_spq_setup(): Reset the SPQ to its start state.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Void.
+ */
+void qed_spq_setup(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_spq_free(): Deallocates the given SPQ struct.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Void.
+ */
+void qed_spq_free(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_spq_get_entry(): Obtain an entrry from the spq
+ *                      free pool list.
+ *
+ * @p_hwfn: HW device data.
+ * @pp_ent: PP ENT.
+ *
+ * Return: Int.
+ */
+int
+qed_spq_get_entry(struct qed_hwfn *p_hwfn,
+		  struct qed_spq_entry **pp_ent);
+
+/**
+ * qed_spq_return_entry(): Return an entry to spq free pool list.
+ *
+ * @p_hwfn: HW device data.
+ * @p_ent: P ENT.
+ *
+ * Return: Void.
+ */
+void qed_spq_return_entry(struct qed_hwfn *p_hwfn,
+			  struct qed_spq_entry *p_ent);
+/**
+ * qed_eq_alloc(): Allocates & initializes an EQ struct.
+ *
+ * @p_hwfn: HW device data.
+ * @num_elem: number of elements in the eq.
+ *
+ * Return: Int.
+ */
+int qed_eq_alloc(struct qed_hwfn *p_hwfn, u16 num_elem);
+
+/**
+ * qed_eq_setup(): Reset the EQ to its start state.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Void.
+ */
+void qed_eq_setup(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_eq_free(): deallocates the given EQ struct.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Void.
+ */
+void qed_eq_free(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_eq_prod_update(): update the FW with default EQ producer.
+ *
+ * @p_hwfn: HW device data.
+ * @prod: Prod.
+ *
+ * Return: Void.
+ */
+void qed_eq_prod_update(struct qed_hwfn *p_hwfn,
+			u16 prod);
+
+/**
+ * qed_eq_completion(): Completes currently pending EQ elements.
+ *
+ * @p_hwfn: HW device data.
+ * @cookie: Cookie.
+ *
+ * Return: Int.
+ */
+int qed_eq_completion(struct qed_hwfn *p_hwfn,
+		      void *cookie);
+
+/**
+ * qed_spq_completion(): Completes a single event.
+ *
+ * @p_hwfn: HW device data.
+ * @echo: echo value from cookie (used for determining completion).
+ * @fw_return_code: FW return code.
+ * @p_data: data from cookie (used in callback function if applicable).
+ *
+ * Return: Int.
+ */
+int qed_spq_completion(struct qed_hwfn *p_hwfn,
+		       __le16 echo,
+		       u8 fw_return_code,
+		       union event_ring_data *p_data);
+
+/**
+ * qed_spq_get_cid(): Given p_hwfn, return cid for the hwfn's SPQ.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: u32 - SPQ CID.
+ */
+u32 qed_spq_get_cid(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_consq_alloc(): Allocates & initializes an ConsQ struct.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Int.
+ */
+int qed_consq_alloc(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_consq_setup(): Reset the ConsQ to its start state.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return Void.
+ */
+void qed_consq_setup(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_consq_free(): deallocates the given ConsQ struct.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return Void.
+ */
+void qed_consq_free(struct qed_hwfn *p_hwfn);
+int qed_spq_pend_post(struct qed_hwfn *p_hwfn);
+
+/* Slow-hwfn low-level commands (Ramrods) function definitions. */
+
+#define QED_SP_EQ_COMPLETION  0x01
+#define QED_SP_CQE_COMPLETION 0x02
+
+struct qed_sp_init_data {
+	u32			cid;
+	u16			opaque_fid;
+
+	/* Information regarding operation upon sending & completion */
+	enum spq_mode		comp_mode;
+	struct qed_spq_comp_cb *p_comp_data;
+};
+
+/**
+ * qed_sp_destroy_request(): Returns a SPQ entry to the pool / frees the
+ *                           entry if allocated. Should be called on in error
+ *                           flows after initializing the SPQ entry
+ *                           and before posting it.
+ *
+ * @p_hwfn: HW device data.
+ * @p_ent: Ent.
+ *
+ * Return: Void.
+ */
+void qed_sp_destroy_request(struct qed_hwfn *p_hwfn,
+			    struct qed_spq_entry *p_ent);
+
+int qed_sp_init_request(struct qed_hwfn *p_hwfn,
+			struct qed_spq_entry **pp_ent,
+			u8 cmd,
+			u8 protocol,
+			struct qed_sp_init_data *p_data);
+
+/**
+ * qed_sp_pf_start(): PF Function Start Ramrod.
+ *
+ * @p_hwfn: HW device data.
+ * @p_ptt: P_ptt.
+ * @p_tunn: P_tunn.
+ * @allow_npar_tx_switch: Allow NPAR TX Switch.
+ *
+ * Return: Int.
+ *
+ * This ramrod is sent to initialize a physical function (PF). It will
+ * configure the function related parameters and write its completion to the
+ * event ring specified in the parameters.
+ *
+ * Ramrods complete on the common event ring for the PF. This ring is
+ * allocated by the driver on host memory and its parameters are written
+ * to the internal RAM of the UStorm by the Function Start Ramrod.
+ *
+ */
+
+int qed_sp_pf_start(struct qed_hwfn *p_hwfn,
+		    struct qed_ptt *p_ptt,
+		    struct qed_tunnel_info *p_tunn,
+		    bool allow_npar_tx_switch);
+
+/**
+ * qed_sp_pf_update(): PF Function Update Ramrod.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Int.
+ *
+ * This ramrod updates function-related parameters. Every parameter can be
+ * updated independently, according to configuration flags.
+ */
+
+int qed_sp_pf_update(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_sp_pf_update_stag(): Update firmware of new outer tag.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Int.
+ */
+int qed_sp_pf_update_stag(struct qed_hwfn *p_hwfn);
+
+/**
+ * qed_sp_pf_update_ufp(): PF ufp update Ramrod.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Int.
+ */
+int qed_sp_pf_update_ufp(struct qed_hwfn *p_hwfn);
+
+int qed_sp_pf_stop(struct qed_hwfn *p_hwfn);
+
+int qed_sp_pf_update_tunn_cfg(struct qed_hwfn *p_hwfn,
+			      struct qed_ptt *p_ptt,
+			      struct qed_tunnel_info *p_tunn,
+			      enum spq_mode comp_mode,
+			      struct qed_spq_comp_cb *p_comp_data);
+/**
+ * qed_sp_heartbeat_ramrod(): Send empty Ramrod.
+ *
+ * @p_hwfn: HW device data.
+ *
+ * Return: Int.
+ */
+
+int qed_sp_heartbeat_ramrod(struct qed_hwfn *p_hwfn);
+
+#endif