| /* QLogic qed NIC Driver |
| * Copyright (c) 2015 QLogic Corporation |
| * |
| * This software is available 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. |
| */ |
| |
| #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 vport_update_ramrod_data vport_update; |
| struct vport_filter_update_ramrod_data vport_filter_update; |
| |
| 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 { |
| u64 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 */ |
| }; |
| |
| 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; |
| }; |
| |
| 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; |
| }; |
| |
| /** |
| * @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 struct qed_eq* - a newly allocated structure; NULL upon error. |
| */ |
| struct qed_eq *qed_eq_alloc(struct qed_hwfn *p_hwfn, |
| u16 num_elem); |
| |
| /** |
| * @brief qed_eq_setup - Reset the SPQ to its start state. |
| * |
| * @param p_hwfn |
| * @param p_eq |
| */ |
| void qed_eq_setup(struct qed_hwfn *p_hwfn, |
| struct qed_eq *p_eq); |
| |
| /** |
| * @brief qed_eq_deallocate - deallocates the given EQ struct. |
| * |
| * @param p_hwfn |
| * @param p_eq |
| */ |
| void qed_eq_free(struct qed_hwfn *p_hwfn, |
| struct qed_eq *p_eq); |
| |
| /** |
| * @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 struct qed_eq* - a newly allocated structure; NULL upon error. |
| */ |
| struct qed_consq *qed_consq_alloc(struct qed_hwfn *p_hwfn); |
| |
| /** |
| * @brief qed_consq_setup - Reset the ConsQ to its start |
| * state. |
| * |
| * @param p_hwfn |
| * @param p_eq |
| */ |
| void qed_consq_setup(struct qed_hwfn *p_hwfn, |
| struct qed_consq *p_consq); |
| |
| /** |
| * @brief qed_consq_free - deallocates the given ConsQ struct. |
| * |
| * @param p_hwfn |
| * @param p_eq |
| */ |
| void qed_consq_free(struct qed_hwfn *p_hwfn, |
| struct qed_consq *p_consq); |
| |
| /** |
| * @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; |
| }; |
| |
| 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_tunn |
| * @param mode |
| * @param allow_npar_tx_switch |
| * |
| * @return int |
| */ |
| |
| int qed_sp_pf_start(struct qed_hwfn *p_hwfn, |
| struct qed_tunn_start_params *p_tunn, |
| enum qed_mf_mode mode, 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_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 |
| */ |
| |
| int qed_sp_pf_stop(struct qed_hwfn *p_hwfn); |
| |
| int qed_sp_pf_update_tunn_cfg(struct qed_hwfn *p_hwfn, |
| struct qed_tunn_update_params *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 |