433 lines
10 KiB
C
433 lines
10 KiB
C
|
/* 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 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 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 roce_init_func_ramrod_data roce_init_func;
|
||
|
|
|
||
|
|
struct iscsi_slow_path_hdr iscsi_empty;
|
||
|
|
struct iscsi_init_ramrod_params iscsi_init;
|
||
|
|
struct iscsi_spe_func_dstry iscsi_destroy;
|
||
|
|
struct iscsi_spe_conn_offload iscsi_conn_offload;
|
||
|
|
struct iscsi_conn_update_ramrod_params iscsi_conn_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 {
|
||
|
|
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 */
|
||
|
|
|
||
|
|
/* 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;
|
||
|
|
};
|
||
|
|
|
||
|
|
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
|