diff options
Diffstat (limited to 'drivers/net/qede/base/ecore_spq.h')
| -rw-r--r-- | drivers/net/qede/base/ecore_spq.h | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/drivers/net/qede/base/ecore_spq.h b/drivers/net/qede/base/ecore_spq.h new file mode 100644 index 00000000..5c168654 --- /dev/null +++ b/drivers/net/qede/base/ecore_spq.h @@ -0,0 +1,284 @@ +/* + * Copyright (c) 2016 QLogic Corporation. + * All rights reserved. + * www.qlogic.com + * + * See LICENSE.qede_pmd for copyright and licensing details. + */ + +#ifndef __ECORE_SPQ_H__ +#define __ECORE_SPQ_H__ + +#include "ecore_hsi_common.h" +#include "ecore_status.h" +#include "ecore_hsi_eth.h" +#include "ecore_chain.h" +#include "ecore_sp_api.h" + +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 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 vf_start_ramrod_data vf_start; + struct vf_stop_ramrod_data vf_stop; +}; + +#define EQ_MAX_CREDIT 0xffffffff + +enum spq_priority { + ECORE_SPQ_PRIORITY_NORMAL, + ECORE_SPQ_PRIORITY_HIGH, +}; + +union ecore_spq_req_comp { + struct ecore_spq_comp_cb cb; + u64 *done_addr; +}; + +/* SPQ_MODE_EBLOCK */ +struct ecore_spq_comp_done { + u64 done; + u8 fw_return_code; +}; + +struct ecore_spq_entry { + osal_list_entry_t 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 */ + osal_list_t *queue; + + enum spq_mode comp_mode; + struct ecore_spq_comp_cb comp_cb; + struct ecore_spq_comp_done comp_done; /* SPQ_MODE_EBLOCK */ +}; + +struct ecore_eq { + struct ecore_chain chain; + u8 eq_sb_index; /* index within the SB */ + __le16 *p_fw_cons; /* ptr to index value */ +}; + +struct ecore_consq { + struct ecore_chain chain; +}; + +struct ecore_spq { + osal_spinlock_t lock; + + osal_list_t unlimited_pending; + osal_list_t pending; + osal_list_t completion_pending; + osal_list_t free_pool; + + struct ecore_chain chain; + + /* allocated dma-able memory for spq entries (+ramrod data) */ + dma_addr_t p_phys; + struct ecore_spq_entry *p_virt; + + /* Bitmap for handling out-of-order completions */ +#define SPQ_RING_SIZE \ + (CORE_SPQE_PAGE_SIZE_BYTES / sizeof(struct slow_path_element)) +#define SPQ_COMP_BMAP_SIZE \ +(SPQ_RING_SIZE / (sizeof(unsigned long) * 8 /* BITS_PER_LONG */)) + unsigned long p_comp_bitmap[SPQ_COMP_BMAP_SIZE]; + u8 comp_bitmap_idx; +#define SPQ_COMP_BMAP_SET_BIT(p_spq, idx) \ +(OSAL_SET_BIT(((idx) % SPQ_RING_SIZE), (p_spq)->p_comp_bitmap)) + +#define SPQ_COMP_BMAP_CLEAR_BIT(p_spq, idx) \ +(OSAL_CLEAR_BIT(((idx) % SPQ_RING_SIZE), (p_spq)->p_comp_bitmap)) + +#define SPQ_COMP_BMAP_TEST_BIT(p_spq, idx) \ +(OSAL_TEST_BIT(((idx) % SPQ_RING_SIZE), (p_spq)->p_comp_bitmap)) + + /* Statistics */ + u32 unlimited_pending_count; + u32 normal_count; + u32 high_count; + u32 comp_sent_count; + u32 comp_count; + + u32 cid; +}; + +struct ecore_port; +struct ecore_hwfn; + +/** + * @brief ecore_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 enum _ecore_status_t + */ +enum _ecore_status_t ecore_spq_post(struct ecore_hwfn *p_hwfn, + struct ecore_spq_entry *p_ent, + u8 *fw_return_code); + +/** + * @brief ecore_spq_allocate - Alloocates & initializes the SPQ and EQ. + * + * @param p_hwfn + * + * @return enum _ecore_status_t + */ +enum _ecore_status_t ecore_spq_alloc(struct ecore_hwfn *p_hwfn); + +/** + * @brief ecore_spq_setup - Reset the SPQ to its start state. + * + * @param p_hwfn + */ +void ecore_spq_setup(struct ecore_hwfn *p_hwfn); + +/** + * @brief ecore_spq_deallocate - Deallocates the given SPQ struct. + * + * @param p_hwfn + */ +void ecore_spq_free(struct ecore_hwfn *p_hwfn); + +/** + * @brief ecore_spq_get_entry - Obtain an entrry from the spq + * free pool list. + * + * + * + * @param p_hwfn + * @param pp_ent + * + * @return enum _ecore_status_t + */ +enum _ecore_status_t +ecore_spq_get_entry(struct ecore_hwfn *p_hwfn, struct ecore_spq_entry **pp_ent); + +/** + * @brief ecore_spq_return_entry - Return an entry to spq free + * pool list + * + * @param p_hwfn + * @param p_ent + */ +void ecore_spq_return_entry(struct ecore_hwfn *p_hwfn, + struct ecore_spq_entry *p_ent); +/** + * @brief ecore_eq_allocate - Allocates & initializes an EQ struct + * + * @param p_hwfn + * @param num_elem number of elements in the eq + * + * @return struct ecore_eq* - a newly allocated structure; NULL upon error. + */ +struct ecore_eq *ecore_eq_alloc(struct ecore_hwfn *p_hwfn, u16 num_elem); + +/** + * @brief ecore_eq_setup - Reset the SPQ to its start state. + * + * @param p_hwfn + * @param p_eq + */ +void ecore_eq_setup(struct ecore_hwfn *p_hwfn, struct ecore_eq *p_eq); + +/** + * @brief ecore_eq_deallocate - deallocates the given EQ struct. + * + * @param p_hwfn + * @param p_eq + */ +void ecore_eq_free(struct ecore_hwfn *p_hwfn, struct ecore_eq *p_eq); + +/** + * @brief ecore_eq_prod_update - update the FW with default EQ producer + * + * @param p_hwfn + * @param prod + */ +void ecore_eq_prod_update(struct ecore_hwfn *p_hwfn, u16 prod); + +/** + * @brief ecore_eq_completion - Completes currently pending EQ elements + * + * @param p_hwfn + * @param cookie + * + * @return enum _ecore_status_t + */ +enum _ecore_status_t ecore_eq_completion(struct ecore_hwfn *p_hwfn, + void *cookie); + +/** + * @brief ecore_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 enum _ecore_status_t + */ +enum _ecore_status_t ecore_spq_completion(struct ecore_hwfn *p_hwfn, + __le16 echo, + u8 fw_return_code, + union event_ring_data *p_data); + +/** + * @brief ecore_spq_get_cid - Given p_hwfn, return cid for the hwfn's SPQ + * + * @param p_hwfn + * + * @return u32 - SPQ CID + */ +u32 ecore_spq_get_cid(struct ecore_hwfn *p_hwfn); + +/** + * @brief ecore_consq_alloc - Allocates & initializes an ConsQ + * struct + * + * @param p_hwfn + * + * @return struct ecore_eq* - a newly allocated structure; NULL upon error. + */ +struct ecore_consq *ecore_consq_alloc(struct ecore_hwfn *p_hwfn); + +/** + * @brief ecore_consq_setup - Reset the ConsQ to its start + * state. + * + * @param p_hwfn + * @param p_eq + */ +void ecore_consq_setup(struct ecore_hwfn *p_hwfn, struct ecore_consq *p_consq); + +/** + * @brief ecore_consq_free - deallocates the given ConsQ struct. + * + * @param p_hwfn + * @param p_eq + */ +void ecore_consq_free(struct ecore_hwfn *p_hwfn, struct ecore_consq *p_consq); + +#endif /* __ECORE_SPQ_H__ */ |