| /* QLogic qed NIC Driver |
| * Copyright (c) 2015-2017 QLogic Corporation |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and /or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #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 *, |
| void *, |
| union event_ring_data *, |
| u8 fw_return_code); |
| void *cookie; |
| }; |
| |
| /** |
| * @brief qed_eth_cqe_completion - handles the completion of a |
| * ramrod on the cqe ring |
| * |
| * @param p_hwfn |
| * @param cqe |
| * |
| * @return int |
| */ |
| int qed_eth_cqe_completion(struct qed_hwfn *p_hwfn, |
| struct eth_slow_path_rx_cqe *cqe); |
| |
| /** |
| * @file |
| * |
| * 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_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 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, |
| u16 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]; |
| }; |
| |
| /** |
| * @brief qed_spq_post - Posts a Slow hwfn request to FW, or lacking that |
| * Pends it to the future list. |
| * |
| * @param p_hwfn |
| * @param p_req |
| * |
| * @return int |
| */ |
| int qed_spq_post(struct qed_hwfn *p_hwfn, |
| struct qed_spq_entry *p_ent, |
| u8 *fw_return_code); |
| |
| /** |
| * @brief qed_spq_allocate - Alloocates & initializes the SPQ and EQ. |
| * |
| * @param p_hwfn |
| * |
| * @return int |
| */ |
| int qed_spq_alloc(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_spq_setup - Reset the SPQ to its start state. |
| * |
| * @param p_hwfn |
| */ |
| void qed_spq_setup(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_spq_deallocate - Deallocates the given SPQ struct. |
| * |
| * @param p_hwfn |
| */ |
| void qed_spq_free(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_spq_get_entry - Obtain an entrry from the spq |
| * free pool list. |
| * |
| * |
| * |
| * @param p_hwfn |
| * @param pp_ent |
| * |
| * @return int |
| */ |
| int |
| qed_spq_get_entry(struct qed_hwfn *p_hwfn, |
| struct qed_spq_entry **pp_ent); |
| |
| /** |
| * @brief qed_spq_return_entry - Return an entry to spq free |
| * pool list |
| * |
| * @param p_hwfn |
| * @param p_ent |
| */ |
| void qed_spq_return_entry(struct qed_hwfn *p_hwfn, |
| struct qed_spq_entry *p_ent); |
| /** |
| * @brief qed_eq_allocate - Allocates & initializes an EQ struct |
| * |
| * @param p_hwfn |
| * @param num_elem number of elements in the eq |
| * |
| * @return int |
| */ |
| int qed_eq_alloc(struct qed_hwfn *p_hwfn, u16 num_elem); |
| |
| /** |
| * @brief qed_eq_setup - Reset the EQ to its start state. |
| * |
| * @param p_hwfn |
| */ |
| void qed_eq_setup(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_eq_free - deallocates the given EQ struct. |
| * |
| * @param p_hwfn |
| */ |
| void qed_eq_free(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_eq_prod_update - update the FW with default EQ producer |
| * |
| * @param p_hwfn |
| * @param prod |
| */ |
| void qed_eq_prod_update(struct qed_hwfn *p_hwfn, |
| u16 prod); |
| |
| /** |
| * @brief qed_eq_completion - Completes currently pending EQ elements |
| * |
| * @param p_hwfn |
| * @param cookie |
| * |
| * @return int |
| */ |
| int qed_eq_completion(struct qed_hwfn *p_hwfn, |
| void *cookie); |
| |
| /** |
| * @brief qed_spq_completion - Completes a single event |
| * |
| * @param p_hwfn |
| * @param echo - echo value from cookie (used for determining completion) |
| * @param 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); |
| |
| /** |
| * @brief qed_spq_get_cid - Given p_hwfn, return cid for the hwfn's SPQ |
| * |
| * @param p_hwfn |
| * |
| * @return u32 - SPQ CID |
| */ |
| u32 qed_spq_get_cid(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_consq_alloc - Allocates & initializes an ConsQ |
| * struct |
| * |
| * @param p_hwfn |
| * |
| * @return int |
| */ |
| int qed_consq_alloc(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_consq_setup - Reset the ConsQ to its start state. |
| * |
| * @param p_hwfn |
| */ |
| void qed_consq_setup(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_consq_free - deallocates the given ConsQ struct. |
| * |
| * @param p_hwfn |
| */ |
| void qed_consq_free(struct qed_hwfn *p_hwfn); |
| int qed_spq_pend_post(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @file |
| * |
| * @brief 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; |
| }; |
| |
| /** |
| * @brief 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. |
| * |
| * @param p_hwfn |
| * @param p_ent |
| */ |
| 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); |
| |
| /** |
| * @brief qed_sp_pf_start - PF Function Start Ramrod |
| * |
| * 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. |
| * |
| * @param p_hwfn |
| * @param p_ptt |
| * @param p_tunn |
| * @param allow_npar_tx_switch |
| * |
| * @return int |
| */ |
| |
| 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); |
| |
| /** |
| * @brief qed_sp_pf_update - PF Function Update Ramrod |
| * |
| * This ramrod updates function-related parameters. Every parameter can be |
| * updated independently, according to configuration flags. |
| * |
| * @param p_hwfn |
| * |
| * @return int |
| */ |
| |
| int qed_sp_pf_update(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_sp_pf_update_stag - Update firmware of new outer tag |
| * |
| * @param p_hwfn |
| * |
| * @return int |
| */ |
| int qed_sp_pf_update_stag(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_sp_pf_stop - PF Function Stop Ramrod |
| * |
| * This ramrod is sent to close a Physical Function (PF). It is the last ramrod |
| * sent and the last completion written to the PFs Event Ring. This ramrod also |
| * deletes the context for the Slowhwfn connection on this PF. |
| * |
| * @note Not required for first packet. |
| * |
| * @param p_hwfn |
| * |
| * @return int |
| */ |
| |
| /** |
| * @brief qed_sp_pf_update_ufp - PF ufp update Ramrod |
| * |
| * @param p_hwfn |
| * |
| * @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); |
| /** |
| * @brief qed_sp_heartbeat_ramrod - Send empty Ramrod |
| * |
| * @param p_hwfn |
| * |
| * @return int |
| */ |
| |
| int qed_sp_heartbeat_ramrod(struct qed_hwfn *p_hwfn); |
| |
| #endif |