i40iw: add main, hdr, status

/*******************************************************************************

*

* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.

*

* 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

* OpenFabrics.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 I40IW_IW_H

#define I40IW_IW_H

#include <linux/netdevice.h>

#include <linux/inetdevice.h>

#include <linux/spinlock.h>

#include <linux/kernel.h>

#include <linux/delay.h>

#include <linux/pci.h>

#include <linux/dma-mapping.h>

#include <linux/workqueue.h>

#include <linux/slab.h>

#include <linux/io.h>

#include <linux/crc32c.h>

#include <rdma/ib_smi.h>

#include <rdma/ib_verbs.h>

#include <rdma/ib_pack.h>

#include <rdma/rdma_cm.h>

#include <rdma/iw_cm.h>

#include <rdma/iw_portmap.h>

#include <rdma/rdma_netlink.h>

#include "i40iw_status.h"

#include "i40iw_osdep.h"

#include "i40iw_d.h"

#include "i40iw_hmc.h"

#include <i40e_client.h>

#include "i40iw_type.h"

#include "i40iw_p.h"

#include "i40iw_ucontext.h"

#include "i40iw_pble.h"

#include "i40iw_verbs.h"

#include "i40iw_cm.h"

#include "i40iw_user.h"

#include "i40iw_puda.h"

#define I40IW_FW_VERSION  2

#define I40IW_HW_VERSION  2

#define I40IW_ARP_ADD     1

#define I40IW_ARP_DELETE  2

#define I40IW_ARP_RESOLVE 3

#define I40IW_MACIP_ADD     1

#define I40IW_MACIP_DELETE  2

#define IW_CCQ_SIZE         (I40IW_CQP_SW_SQSIZE_2048 + 1)

#define IW_CEQ_SIZE         2048

#define IW_AEQ_SIZE         2048

#define RX_BUF_SIZE            (1536 + 8)

#define IW_REG0_SIZE           (4 * 1024)

#define IW_TX_TIMEOUT          (6 * HZ)

#define IW_FIRST_QPN           1

#define IW_SW_CONTEXT_ALIGN    1024

#define MAX_DPC_ITERATIONS		128

#define I40IW_EVENT_TIMEOUT		100000

#define I40IW_VCHNL_EVENT_TIMEOUT	100000

#define	I40IW_NO_VLAN			0xffff

#define	I40IW_NO_QSET			0xffff

/* access to mcast filter list */

#define IW_ADD_MCAST false

#define IW_DEL_MCAST true

#define I40IW_DRV_OPT_ENABLE_MPA_VER_0     0x00000001

#define I40IW_DRV_OPT_DISABLE_MPA_CRC      0x00000002

#define I40IW_DRV_OPT_DISABLE_FIRST_WRITE  0x00000004

#define I40IW_DRV_OPT_DISABLE_INTF         0x00000008

#define I40IW_DRV_OPT_ENABLE_MSI           0x00000010

#define I40IW_DRV_OPT_DUAL_LOGICAL_PORT    0x00000020

#define I40IW_DRV_OPT_NO_INLINE_DATA       0x00000080

#define I40IW_DRV_OPT_DISABLE_INT_MOD      0x00000100

#define I40IW_DRV_OPT_DISABLE_VIRT_WQ      0x00000200

#define I40IW_DRV_OPT_ENABLE_PAU           0x00000400

#define I40IW_DRV_OPT_MCAST_LOGPORT_MAP    0x00000800

#define IW_HMC_OBJ_TYPE_NUM ARRAY_SIZE(iw_hmc_obj_types)

#define IW_CFG_FPM_QP_COUNT		32768

#define I40IW_MTU_TO_MSS		40

#define I40IW_DEFAULT_MSS		1460

struct i40iw_cqp_compl_info {

	u32 op_ret_val;

	u16 maj_err_code;

	u16 min_err_code;

	bool error;

	u8 op_code;

};

#define i40iw_pr_err(fmt, args ...) pr_err("%s: "fmt, __func__, ## args)

#define i40iw_pr_info(fmt, args ...) pr_info("%s: " fmt, __func__, ## args)

#define i40iw_pr_warn(fmt, args ...) pr_warn("%s: " fmt, __func__, ## args)

struct i40iw_cqp_request {

	struct cqp_commands_info info;

	wait_queue_head_t waitq;

	struct list_head list;

	atomic_t refcount;

	void (*callback_fcn)(struct i40iw_cqp_request*, u32);

	void *param;

	struct i40iw_cqp_compl_info compl_info;

	bool waiting;

	bool request_done;

	bool dynamic;

};

struct i40iw_cqp {

	struct i40iw_sc_cqp sc_cqp;

	spinlock_t req_lock; /*cqp request list */

	wait_queue_head_t waitq;

	struct i40iw_dma_mem sq;

	struct i40iw_dma_mem host_ctx;

	u64 *scratch_array;

	struct i40iw_cqp_request *cqp_requests;

	struct list_head cqp_avail_reqs;

	struct list_head cqp_pending_reqs;

};

struct i40iw_device;

struct i40iw_ccq {

	struct i40iw_sc_cq sc_cq;

	spinlock_t lock; /* ccq control */

	wait_queue_head_t waitq;

	struct i40iw_dma_mem mem_cq;

	struct i40iw_dma_mem shadow_area;

};

struct i40iw_ceq {

	struct i40iw_sc_ceq sc_ceq;

	struct i40iw_dma_mem mem;

	u32 irq;

	u32 msix_idx;

	struct i40iw_device *iwdev;

	struct tasklet_struct dpc_tasklet;

};

struct i40iw_aeq {

	struct i40iw_sc_aeq sc_aeq;

	struct i40iw_dma_mem mem;

};

struct i40iw_arp_entry {

	u32 ip_addr[4];

	u8 mac_addr[ETH_ALEN];

};

enum init_completion_state {

	INVALID_STATE = 0,

	INITIAL_STATE,

	CQP_CREATED,

	HMC_OBJS_CREATED,

	PBLE_CHUNK_MEM,

	CCQ_CREATED,

	AEQ_CREATED,

	CEQ_CREATED,

	ILQ_CREATED,

	IEQ_CREATED,

	INET_NOTIFIER,

	IP_ADDR_REGISTERED,

	RDMA_DEV_REGISTERED

};

struct i40iw_msix_vector {

	u32 idx;

	u32 irq;

	u32 cpu_affinity;

	u32 ceq_id;

};

#define I40IW_MSIX_TABLE_SIZE   65

struct virtchnl_work {

	struct work_struct work;

	union {

		struct i40iw_cqp_request *cqp_request;

		struct i40iw_virtchnl_work_info work_info;

	};

};

struct i40e_qvlist_info;

struct i40iw_device {

	struct i40iw_ib_device *iwibdev;

	struct net_device *netdev;

	wait_queue_head_t vchnl_waitq;

	struct i40iw_sc_dev sc_dev;

	struct i40iw_handler *hdl;

	struct i40e_info *ldev;

	struct i40e_client *client;

	struct i40iw_hw hw;

	struct i40iw_cm_core cm_core;

	unsigned long *mem_resources;

	unsigned long *allocated_qps;

	unsigned long *allocated_cqs;

	unsigned long *allocated_mrs;

	unsigned long *allocated_pds;

	unsigned long *allocated_arps;

	struct i40iw_qp **qp_table;

	bool msix_shared;

	u32 msix_count;

	struct i40iw_msix_vector *iw_msixtbl;

	struct i40e_qvlist_info *iw_qvlist;

	struct i40iw_hmc_pble_rsrc *pble_rsrc;

	struct i40iw_arp_entry *arp_table;

	struct i40iw_cqp cqp;

	struct i40iw_ccq ccq;

	u32 ceqs_count;

	struct i40iw_ceq *ceqlist;

	struct i40iw_aeq aeq;

	u32 arp_table_size;

	u32 next_arp_index;

	spinlock_t resource_lock; /* hw resource access */

	u32 vendor_id;

	u32 vendor_part_id;

	u32 of_device_registered;

	u32 device_cap_flags;

	unsigned long db_start;

	u8 resource_profile;

	u8 max_rdma_vfs;

	u8 max_enabled_vfs;

	u8 max_sge;

	u8 iw_status;

	u8 send_term_ok;

	bool push_mode;		/* Initialized from parameter passed to driver */

	/* x710 specific */

	struct mutex pbl_mutex;

	struct tasklet_struct dpc_tasklet;

	struct workqueue_struct *virtchnl_wq;

	struct virtchnl_work virtchnl_w[I40IW_MAX_PE_ENABLED_VF_COUNT];

	struct i40iw_dma_mem obj_mem;

	struct i40iw_dma_mem obj_next;

	u8 *hmc_info_mem;

	u32 sd_type;

	struct workqueue_struct *param_wq;

	atomic_t params_busy;

	u32 mss;

	enum init_completion_state init_state;

	u16 mac_ip_table_idx;

	atomic_t vchnl_msgs;

	u32 max_mr;

	u32 max_qp;

	u32 max_cq;

	u32 max_pd;

	u32 next_qp;

	u32 next_cq;

	u32 next_pd;

	u32 max_mr_size;

	u32 max_qp_wr;

	u32 max_cqe;

	u32 mr_stagmask;

	u32 mpa_version;

	bool dcb;

};

struct i40iw_ib_device {

	struct ib_device ibdev;

	struct i40iw_device *iwdev;

};

struct i40iw_handler {

	struct list_head list;

	struct i40e_client *client;

	struct i40iw_device device;

	struct i40e_info ldev;

};

/**

 * to_iwdev - get device

 * @ibdev: ib device

 **/

static inline struct i40iw_device *to_iwdev(struct ib_device *ibdev)

{

	return container_of(ibdev, struct i40iw_ib_device, ibdev)->iwdev;

}

/**

 * to_ucontext - get user context

 * @ibucontext: ib user context

 **/

static inline struct i40iw_ucontext *to_ucontext(struct ib_ucontext *ibucontext)

{

	return container_of(ibucontext, struct i40iw_ucontext, ibucontext);

}

/**

 * to_iwpd - get protection domain

 * @ibpd: ib pd

 **/

static inline struct i40iw_pd *to_iwpd(struct ib_pd *ibpd)

{

	return container_of(ibpd, struct i40iw_pd, ibpd);

}

/**

 * to_iwmr - get device memory region

 * @ibdev: ib memory region

 **/

static inline struct i40iw_mr *to_iwmr(struct ib_mr *ibmr)

{

	return container_of(ibmr, struct i40iw_mr, ibmr);

}

/**

 * to_iwmr_from_ibfmr - get device memory region

 * @ibfmr: ib fmr

 **/

static inline struct i40iw_mr *to_iwmr_from_ibfmr(struct ib_fmr *ibfmr)

{

	return container_of(ibfmr, struct i40iw_mr, ibfmr);

}

/**

 * to_iwmw - get device memory window

 * @ibmw: ib memory window

 **/

static inline struct i40iw_mr *to_iwmw(struct ib_mw *ibmw)

{

	return container_of(ibmw, struct i40iw_mr, ibmw);

}

/**

 * to_iwcq - get completion queue

 * @ibcq: ib cqdevice

 **/

static inline struct i40iw_cq *to_iwcq(struct ib_cq *ibcq)

{

	return container_of(ibcq, struct i40iw_cq, ibcq);

}

/**

 * to_iwqp - get device qp

 * @ibqp: ib qp

 **/

static inline struct i40iw_qp *to_iwqp(struct ib_qp *ibqp)

{

	return container_of(ibqp, struct i40iw_qp, ibqp);

}

/* i40iw.c */

void i40iw_add_ref(struct ib_qp *);

void i40iw_rem_ref(struct ib_qp *);

struct ib_qp *i40iw_get_qp(struct ib_device *, int);

void i40iw_flush_wqes(struct i40iw_device *iwdev,

		      struct i40iw_qp *qp);

void i40iw_manage_arp_cache(struct i40iw_device *iwdev,

			    unsigned char *mac_addr,

			    __be32 *ip_addr,

			    bool ipv4,

			    u32 action);

int i40iw_manage_apbvt(struct i40iw_device *iwdev,

		       u16 accel_local_port,

		       bool add_port);

struct i40iw_cqp_request *i40iw_get_cqp_request(struct i40iw_cqp *cqp, bool wait);

void i40iw_free_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request);

void i40iw_put_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request);

/**

 * i40iw_alloc_resource - allocate a resource

 * @iwdev: device pointer

 * @resource_array: resource bit array:

 * @max_resources: maximum resource number

 * @req_resources_num: Allocated resource number

 * @next: next free id

 **/

static inline int i40iw_alloc_resource(struct i40iw_device *iwdev,

				       unsigned long *resource_array,

				       u32 max_resources,

				       u32 *req_resource_num,

				       u32 *next)

{

	u32 resource_num;

	unsigned long flags;

	spin_lock_irqsave(&iwdev->resource_lock, flags);

	resource_num = find_next_zero_bit(resource_array, max_resources, *next);

	if (resource_num >= max_resources) {

		resource_num = find_first_zero_bit(resource_array, max_resources);

		if (resource_num >= max_resources) {

			spin_unlock_irqrestore(&iwdev->resource_lock, flags);

			return -EOVERFLOW;

		}

	}

	set_bit(resource_num, resource_array);

	*next = resource_num + 1;

	if (*next == max_resources)

		*next = 0;

	spin_unlock_irqrestore(&iwdev->resource_lock, flags);

	*req_resource_num = resource_num;

	return 0;

}

/**

 * i40iw_is_resource_allocated - detrmine if resource is

 * allocated

 * @iwdev: device pointer

 * @resource_array: resource array for the resource_num

 * @resource_num: resource number to check

 **/

static inline bool i40iw_is_resource_allocated(struct i40iw_device *iwdev,

					       unsigned long *resource_array,

					       u32 resource_num)

{

	bool bit_is_set;

	unsigned long flags;

	spin_lock_irqsave(&iwdev->resource_lock, flags);

	bit_is_set = test_bit(resource_num, resource_array);

	spin_unlock_irqrestore(&iwdev->resource_lock, flags);

	return bit_is_set;

}

/**

 * i40iw_free_resource - free a resource

 * @iwdev: device pointer

 * @resource_array: resource array for the resource_num

 * @resource_num: resource number to free

 **/

static inline void i40iw_free_resource(struct i40iw_device *iwdev,

				       unsigned long *resource_array,

				       u32 resource_num)

{

	unsigned long flags;

	spin_lock_irqsave(&iwdev->resource_lock, flags);

	clear_bit(resource_num, resource_array);

	spin_unlock_irqrestore(&iwdev->resource_lock, flags);

}

/**

 * to_iwhdl - Get the handler from the device pointer

 * @iwdev: device pointer

 **/

static inline struct i40iw_handler *to_iwhdl(struct i40iw_device *iw_dev)

{

	return container_of(iw_dev, struct i40iw_handler, device);

}

struct i40iw_handler *i40iw_find_netdev(struct net_device *netdev);

/**

 * iw_init_resources -

 */

u32 i40iw_initialize_hw_resources(struct i40iw_device *iwdev);

int i40iw_register_rdma_device(struct i40iw_device *iwdev);

void i40iw_port_ibevent(struct i40iw_device *iwdev);

int i40iw_cm_disconn(struct i40iw_qp *);

void i40iw_cm_disconn_worker(void *);

int mini_cm_recv_pkt(struct i40iw_cm_core *, struct i40iw_device *,

		     struct sk_buff *);

enum i40iw_status_code i40iw_handle_cqp_op(struct i40iw_device *iwdev,

					   struct i40iw_cqp_request *cqp_request);

enum i40iw_status_code i40iw_add_mac_addr(struct i40iw_device *iwdev,

					  u8 *mac_addr, u8 *mac_index);

int i40iw_modify_qp(struct ib_qp *, struct ib_qp_attr *, int, struct ib_udata *);

void i40iw_rem_pdusecount(struct i40iw_pd *iwpd, struct i40iw_device *iwdev);

void i40iw_add_pdusecount(struct i40iw_pd *iwpd);

void i40iw_hw_modify_qp(struct i40iw_device *iwdev, struct i40iw_qp *iwqp,

			struct i40iw_modify_qp_info *info, bool wait);

enum i40iw_status_code i40iw_manage_qhash(struct i40iw_device *iwdev,

					  struct i40iw_cm_info *cminfo,

					  enum i40iw_quad_entry_type etype,

					  enum i40iw_quad_hash_manage_type mtype,

					  void *cmnode,

					  bool wait);

void i40iw_receive_ilq(struct i40iw_sc_dev *dev, struct i40iw_puda_buf *rbuf);

void i40iw_free_sqbuf(struct i40iw_sc_dev *dev, void *bufp);

void i40iw_free_qp_resources(struct i40iw_device *iwdev,

			     struct i40iw_qp *iwqp,

			     u32 qp_num);

enum i40iw_status_code i40iw_obj_aligned_mem(struct i40iw_device *iwdev,

					     struct i40iw_dma_mem *memptr,

					     u32 size, u32 mask);

void i40iw_request_reset(struct i40iw_device *iwdev);

void i40iw_destroy_rdma_device(struct i40iw_ib_device *iwibdev);

void i40iw_setup_cm_core(struct i40iw_device *iwdev);

void i40iw_cleanup_cm_core(struct i40iw_cm_core *cm_core);

void i40iw_process_ceq(struct i40iw_device *, struct i40iw_ceq *iwceq);

void i40iw_process_aeq(struct i40iw_device *);

void i40iw_next_iw_state(struct i40iw_qp *iwqp,

			 u8 state, u8 del_hash,

			 u8 term, u8 term_len);

int i40iw_send_syn(struct i40iw_cm_node *cm_node, u32 sendack);

struct i40iw_cm_node *i40iw_find_node(struct i40iw_cm_core *cm_core,

				      u16 rem_port,

				      u32 *rem_addr,

				      u16 loc_port,

				      u32 *loc_addr,

				      bool add_refcnt);

enum i40iw_status_code i40iw_hw_flush_wqes(struct i40iw_device *iwdev,

					   struct i40iw_sc_qp *qp,

					   struct i40iw_qp_flush_info *info,

					   bool wait);

void i40iw_copy_ip_ntohl(u32 *dst, u32 *src);

struct ib_mr *i40iw_reg_phys_mr(struct ib_pd *ib_pd,

				u64 addr,

				u64 size,

				int acc,

				u64 *iova_start);

int i40iw_inetaddr_event(struct notifier_block *notifier,

			 unsigned long event,

			 void *ptr);

int i40iw_inet6addr_event(struct notifier_block *notifier,

			  unsigned long event,

			  void *ptr);

int i40iw_net_event(struct notifier_block *notifier,

		    unsigned long event,

		    void *ptr);

#endif