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1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */2/* Copyright (c) 2015 - 2021 Intel Corporation */3#ifndef IRDMA_MAIN_H4#define IRDMA_MAIN_H5 6#include <linux/ip.h>7#include <linux/tcp.h>8#include <linux/if_vlan.h>9#include <net/addrconf.h>10#include <net/netevent.h>11#include <net/tcp.h>12#include <net/ip6_route.h>13#include <net/flow.h>14#include <net/secure_seq.h>15#include <linux/netdevice.h>16#include <linux/etherdevice.h>17#include <linux/inetdevice.h>18#include <linux/spinlock.h>19#include <linux/kernel.h>20#include <linux/delay.h>21#include <linux/pci.h>22#include <linux/dma-mapping.h>23#include <linux/workqueue.h>24#include <linux/slab.h>25#include <linux/io.h>26#include <linux/crc32c.h>27#include <linux/kthread.h>28#ifndef CONFIG_64BIT29#include <linux/io-64-nonatomic-lo-hi.h>30#endif31#include <linux/auxiliary_bus.h>32#include <linux/net/intel/iidc.h>33#include <crypto/hash.h>34#include <rdma/ib_smi.h>35#include <rdma/ib_verbs.h>36#include <rdma/ib_pack.h>37#include <rdma/rdma_cm.h>38#include <rdma/iw_cm.h>39#include <rdma/ib_user_verbs.h>40#include <rdma/ib_umem.h>41#include <rdma/ib_cache.h>42#include <rdma/uverbs_ioctl.h>43#include "osdep.h"44#include "defs.h"45#include "hmc.h"46#include "type.h"47#include "ws.h"48#include "protos.h"49#include "pble.h"50#include "cm.h"51#include <rdma/irdma-abi.h>52#include "verbs.h"53#include "user.h"54#include "puda.h"55 56extern struct auxiliary_driver i40iw_auxiliary_drv;57 58#define IRDMA_FW_VER_DEFAULT	259#define IRDMA_HW_VER	        260 61#define IRDMA_ARP_ADD		162#define IRDMA_ARP_DELETE	263#define IRDMA_ARP_RESOLVE	364 65#define IRDMA_MACIP_ADD		166#define IRDMA_MACIP_DELETE	267 68#define IW_CCQ_SIZE	(IRDMA_CQP_SW_SQSIZE_2048 + 1)69#define IW_CEQ_SIZE	204870#define IW_AEQ_SIZE	204871 72#define RX_BUF_SIZE	(1536 + 8)73#define IW_REG0_SIZE	(4 * 1024)74#define IW_TX_TIMEOUT	(6 * HZ)75#define IW_FIRST_QPN	176 77#define IW_SW_CONTEXT_ALIGN	102478 79#define MAX_DPC_ITERATIONS	12880 81#define IRDMA_EVENT_TIMEOUT_MS		500082#define IRDMA_VCHNL_EVENT_TIMEOUT	10000083#define IRDMA_RST_TIMEOUT_HZ		484 85#define	IRDMA_NO_QSET	0xffff86 87#define IW_CFG_FPM_QP_COUNT		3276888#define IRDMA_MAX_PAGES_PER_FMR		26214489#define IRDMA_MIN_PAGES_PER_FMR		190#define IRDMA_CQP_COMPL_RQ_WQE_FLUSHED	291#define IRDMA_CQP_COMPL_SQ_WQE_FLUSHED	392 93#define IRDMA_Q_TYPE_PE_AEQ	0x8094#define IRDMA_Q_INVALID_IDX	0xffff95#define IRDMA_REM_ENDPOINT_TRK_QPID	396 97#define IRDMA_DRV_OPT_ENA_MPA_VER_0		0x0000000198#define IRDMA_DRV_OPT_DISABLE_MPA_CRC		0x0000000299#define IRDMA_DRV_OPT_DISABLE_FIRST_WRITE	0x00000004100#define IRDMA_DRV_OPT_DISABLE_INTF		0x00000008101#define IRDMA_DRV_OPT_ENA_MSI			0x00000010102#define IRDMA_DRV_OPT_DUAL_LOGICAL_PORT		0x00000020103#define IRDMA_DRV_OPT_NO_INLINE_DATA		0x00000080104#define IRDMA_DRV_OPT_DISABLE_INT_MOD		0x00000100105#define IRDMA_DRV_OPT_DISABLE_VIRT_WQ		0x00000200106#define IRDMA_DRV_OPT_ENA_PAU			0x00000400107#define IRDMA_DRV_OPT_MCAST_LOGPORT_MAP		0x00000800108 109#define IW_HMC_OBJ_TYPE_NUM	ARRAY_SIZE(iw_hmc_obj_types)110#define IRDMA_ROCE_CWND_DEFAULT			0x400111#define IRDMA_ROCE_ACKCREDS_DEFAULT		0x1E112 113#define IRDMA_FLUSH_SQ		BIT(0)114#define IRDMA_FLUSH_RQ		BIT(1)115#define IRDMA_REFLUSH		BIT(2)116#define IRDMA_FLUSH_WAIT	BIT(3)117 118#define IRDMA_IRQ_NAME_STR_LEN (64)119 120enum init_completion_state {121	INVALID_STATE = 0,122	INITIAL_STATE,123	CQP_CREATED,124	HMC_OBJS_CREATED,125	HW_RSRC_INITIALIZED,126	CCQ_CREATED,127	CEQ0_CREATED, /* Last state of probe */128	ILQ_CREATED,129	IEQ_CREATED,130	CEQS_CREATED,131	PBLE_CHUNK_MEM,132	AEQ_CREATED,133	IP_ADDR_REGISTERED,  /* Last state of open */134};135 136struct irdma_rsrc_limits {137	u32 qplimit;138	u32 mrlimit;139	u32 cqlimit;140};141 142struct irdma_cqp_err_info {143	u16 maj;144	u16 min;145	const char *desc;146};147 148struct irdma_cqp_compl_info {149	u32 op_ret_val;150	u16 maj_err_code;151	u16 min_err_code;152	bool error;153	u8 op_code;154};155 156struct irdma_cqp_request {157	struct cqp_cmds_info info;158	wait_queue_head_t waitq;159	struct list_head list;160	refcount_t refcnt;161	void (*callback_fcn)(struct irdma_cqp_request *cqp_request);162	void *param;163	struct irdma_cqp_compl_info compl_info;164	bool request_done; /* READ/WRITE_ONCE macros operate on it */165	bool waiting:1;166	bool dynamic:1;167};168 169struct irdma_cqp {170	struct irdma_sc_cqp sc_cqp;171	spinlock_t req_lock; /* protect CQP request list */172	spinlock_t compl_lock; /* protect CQP completion processing */173	wait_queue_head_t waitq;174	wait_queue_head_t remove_wq;175	struct irdma_dma_mem sq;176	struct irdma_dma_mem host_ctx;177	u64 *scratch_array;178	struct irdma_cqp_request *cqp_requests;179	struct list_head cqp_avail_reqs;180	struct list_head cqp_pending_reqs;181};182 183struct irdma_ccq {184	struct irdma_sc_cq sc_cq;185	struct irdma_dma_mem mem_cq;186	struct irdma_dma_mem shadow_area;187};188 189struct irdma_ceq {190	struct irdma_sc_ceq sc_ceq;191	struct irdma_dma_mem mem;192	u32 irq;193	u32 msix_idx;194	struct irdma_pci_f *rf;195	struct tasklet_struct dpc_tasklet;196	spinlock_t ce_lock; /* sync cq destroy with cq completion event notification */197};198 199struct irdma_aeq {200	struct irdma_sc_aeq sc_aeq;201	struct irdma_dma_mem mem;202	struct irdma_pble_alloc palloc;203	bool virtual_map;204};205 206struct irdma_arp_entry {207	u32 ip_addr[4];208	u8 mac_addr[ETH_ALEN];209};210 211struct irdma_msix_vector {212	u32 idx;213	u32 irq;214	u32 cpu_affinity;215	u32 ceq_id;216	cpumask_t mask;217	char name[IRDMA_IRQ_NAME_STR_LEN];218};219 220struct irdma_mc_table_info {221	u32 mgn;222	u32 dest_ip[4];223	bool lan_fwd:1;224	bool ipv4_valid:1;225};226 227struct mc_table_list {228	struct list_head list;229	struct irdma_mc_table_info mc_info;230	struct irdma_mcast_grp_info mc_grp_ctx;231};232 233struct irdma_qv_info {234	u32 v_idx; /* msix_vector */235	u16 ceq_idx;236	u16 aeq_idx;237	u8 itr_idx;238};239 240struct irdma_qvlist_info {241	u32 num_vectors;242	struct irdma_qv_info qv_info[] __counted_by(num_vectors);243};244 245struct irdma_gen_ops {246	void (*request_reset)(struct irdma_pci_f *rf);247	int (*register_qset)(struct irdma_sc_vsi *vsi,248			     struct irdma_ws_node *tc_node);249	void (*unregister_qset)(struct irdma_sc_vsi *vsi,250				struct irdma_ws_node *tc_node);251};252 253struct irdma_pci_f {254	bool reset:1;255	bool rsrc_created:1;256	bool msix_shared:1;257	u8 rsrc_profile;258	u8 *hmc_info_mem;259	u8 *mem_rsrc;260	u8 rdma_ver;261	u8 rst_to;262	u8 pf_id;263	enum irdma_protocol_used protocol_used;264	u32 sd_type;265	u32 msix_count;266	u32 max_mr;267	u32 max_qp;268	u32 max_cq;269	u32 max_ah;270	u32 next_ah;271	u32 max_mcg;272	u32 next_mcg;273	u32 max_pd;274	u32 next_qp;275	u32 next_cq;276	u32 next_pd;277	u32 max_mr_size;278	u32 max_cqe;279	u32 mr_stagmask;280	u32 used_pds;281	u32 used_cqs;282	u32 used_mrs;283	u32 used_qps;284	u32 arp_table_size;285	u32 next_arp_index;286	u32 ceqs_count;287	u32 next_ws_node_id;288	u32 max_ws_node_id;289	u32 limits_sel;290	unsigned long *allocated_ws_nodes;291	unsigned long *allocated_qps;292	unsigned long *allocated_cqs;293	unsigned long *allocated_mrs;294	unsigned long *allocated_pds;295	unsigned long *allocated_mcgs;296	unsigned long *allocated_ahs;297	unsigned long *allocated_arps;298	enum init_completion_state init_state;299	struct irdma_sc_dev sc_dev;300	struct pci_dev *pcidev;301	void *cdev;302	struct irdma_hw hw;303	struct irdma_cqp cqp;304	struct irdma_ccq ccq;305	struct irdma_aeq aeq;306	struct irdma_ceq *ceqlist;307	struct irdma_hmc_pble_rsrc *pble_rsrc;308	struct irdma_arp_entry *arp_table;309	spinlock_t arp_lock; /*protect ARP table access*/310	spinlock_t rsrc_lock; /* protect HW resource array access */311	spinlock_t qptable_lock; /*protect QP table access*/312	spinlock_t cqtable_lock; /*protect CQ table access*/313	struct irdma_qp **qp_table;314	struct irdma_cq **cq_table;315	spinlock_t qh_list_lock; /* protect mc_qht_list */316	struct mc_table_list mc_qht_list;317	struct irdma_msix_vector *iw_msixtbl;318	struct irdma_qvlist_info *iw_qvlist;319	struct tasklet_struct dpc_tasklet;320	struct msix_entry *msix_entries;321	struct irdma_dma_mem obj_mem;322	struct irdma_dma_mem obj_next;323	atomic_t vchnl_msgs;324	wait_queue_head_t vchnl_waitq;325	struct workqueue_struct *cqp_cmpl_wq;326	struct work_struct cqp_cmpl_work;327	struct irdma_sc_vsi default_vsi;328	void *back_fcn;329	struct irdma_gen_ops gen_ops;330	struct irdma_device *iwdev;331};332 333struct irdma_device {334	struct ib_device ibdev;335	struct irdma_pci_f *rf;336	struct net_device *netdev;337	struct workqueue_struct *cleanup_wq;338	struct irdma_sc_vsi vsi;339	struct irdma_cm_core cm_core;340	DECLARE_HASHTABLE(ah_hash_tbl, 8);341	struct mutex ah_tbl_lock; /* protect AH hash table access */342	u32 roce_cwnd;343	u32 roce_ackcreds;344	u32 vendor_id;345	u32 vendor_part_id;346	u32 push_mode;347	u32 rcv_wnd;348	u16 mac_ip_table_idx;349	u16 vsi_num;350	u8 rcv_wscale;351	u8 iw_status;352	bool roce_mode:1;353	bool roce_dcqcn_en:1;354	bool dcb_vlan_mode:1;355	bool iw_ooo:1;356	enum init_completion_state init_state;357 358	wait_queue_head_t suspend_wq;359};360 361static inline struct irdma_device *to_iwdev(struct ib_device *ibdev)362{363	return container_of(ibdev, struct irdma_device, ibdev);364}365 366static inline struct irdma_ucontext *to_ucontext(struct ib_ucontext *ibucontext)367{368	return container_of(ibucontext, struct irdma_ucontext, ibucontext);369}370 371static inline struct irdma_user_mmap_entry *372to_irdma_mmap_entry(struct rdma_user_mmap_entry *rdma_entry)373{374	return container_of(rdma_entry, struct irdma_user_mmap_entry,375			    rdma_entry);376}377 378static inline struct irdma_pd *to_iwpd(struct ib_pd *ibpd)379{380	return container_of(ibpd, struct irdma_pd, ibpd);381}382 383static inline struct irdma_ah *to_iwah(struct ib_ah *ibah)384{385	return container_of(ibah, struct irdma_ah, ibah);386}387 388static inline struct irdma_mr *to_iwmr(struct ib_mr *ibmr)389{390	return container_of(ibmr, struct irdma_mr, ibmr);391}392 393static inline struct irdma_mr *to_iwmw(struct ib_mw *ibmw)394{395	return container_of(ibmw, struct irdma_mr, ibmw);396}397 398static inline struct irdma_cq *to_iwcq(struct ib_cq *ibcq)399{400	return container_of(ibcq, struct irdma_cq, ibcq);401}402 403static inline struct irdma_qp *to_iwqp(struct ib_qp *ibqp)404{405	return container_of(ibqp, struct irdma_qp, ibqp);406}407 408static inline struct irdma_pci_f *dev_to_rf(struct irdma_sc_dev *dev)409{410	return container_of(dev, struct irdma_pci_f, sc_dev);411}412 413/**414 * irdma_alloc_resource - allocate a resource415 * @iwdev: device pointer416 * @resource_array: resource bit array:417 * @max_resources: maximum resource number418 * @req_resources_num: Allocated resource number419 * @next: next free id420 **/421static inline int irdma_alloc_rsrc(struct irdma_pci_f *rf,422				   unsigned long *rsrc_array, u32 max_rsrc,423				   u32 *req_rsrc_num, u32 *next)424{425	u32 rsrc_num;426	unsigned long flags;427 428	spin_lock_irqsave(&rf->rsrc_lock, flags);429	rsrc_num = find_next_zero_bit(rsrc_array, max_rsrc, *next);430	if (rsrc_num >= max_rsrc) {431		rsrc_num = find_first_zero_bit(rsrc_array, max_rsrc);432		if (rsrc_num >= max_rsrc) {433			spin_unlock_irqrestore(&rf->rsrc_lock, flags);434			ibdev_dbg(&rf->iwdev->ibdev,435				  "ERR: resource [%d] allocation failed\n",436				  rsrc_num);437			return -EOVERFLOW;438		}439	}440	__set_bit(rsrc_num, rsrc_array);441	*next = rsrc_num + 1;442	if (*next == max_rsrc)443		*next = 0;444	*req_rsrc_num = rsrc_num;445	spin_unlock_irqrestore(&rf->rsrc_lock, flags);446 447	return 0;448}449 450/**451 * irdma_free_resource - free a resource452 * @iwdev: device pointer453 * @resource_array: resource array for the resource_num454 * @resource_num: resource number to free455 **/456static inline void irdma_free_rsrc(struct irdma_pci_f *rf,457				   unsigned long *rsrc_array, u32 rsrc_num)458{459	unsigned long flags;460 461	spin_lock_irqsave(&rf->rsrc_lock, flags);462	__clear_bit(rsrc_num, rsrc_array);463	spin_unlock_irqrestore(&rf->rsrc_lock, flags);464}465 466int irdma_ctrl_init_hw(struct irdma_pci_f *rf);467void irdma_ctrl_deinit_hw(struct irdma_pci_f *rf);468int irdma_rt_init_hw(struct irdma_device *iwdev,469		     struct irdma_l2params *l2params);470void irdma_rt_deinit_hw(struct irdma_device *iwdev);471void irdma_qp_add_ref(struct ib_qp *ibqp);472void irdma_qp_rem_ref(struct ib_qp *ibqp);473void irdma_free_lsmm_rsrc(struct irdma_qp *iwqp);474struct ib_qp *irdma_get_qp(struct ib_device *ibdev, int qpn);475void irdma_flush_wqes(struct irdma_qp *iwqp, u32 flush_mask);476void irdma_manage_arp_cache(struct irdma_pci_f *rf,477			    const unsigned char *mac_addr,478			    u32 *ip_addr, bool ipv4, u32 action);479struct irdma_apbvt_entry *irdma_add_apbvt(struct irdma_device *iwdev, u16 port);480void irdma_del_apbvt(struct irdma_device *iwdev,481		     struct irdma_apbvt_entry *entry);482struct irdma_cqp_request *irdma_alloc_and_get_cqp_request(struct irdma_cqp *cqp,483							  bool wait);484void irdma_free_cqp_request(struct irdma_cqp *cqp,485			    struct irdma_cqp_request *cqp_request);486void irdma_put_cqp_request(struct irdma_cqp *cqp,487			   struct irdma_cqp_request *cqp_request);488int irdma_alloc_local_mac_entry(struct irdma_pci_f *rf, u16 *mac_tbl_idx);489int irdma_add_local_mac_entry(struct irdma_pci_f *rf, const u8 *mac_addr, u16 idx);490void irdma_del_local_mac_entry(struct irdma_pci_f *rf, u16 idx);491 492u32 irdma_initialize_hw_rsrc(struct irdma_pci_f *rf);493void irdma_port_ibevent(struct irdma_device *iwdev);494void irdma_cm_disconn(struct irdma_qp *qp);495 496bool irdma_cqp_crit_err(struct irdma_sc_dev *dev, u8 cqp_cmd,497			u16 maj_err_code, u16 min_err_code);498int irdma_handle_cqp_op(struct irdma_pci_f *rf,499			struct irdma_cqp_request *cqp_request);500 501int irdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,502		    struct ib_udata *udata);503int irdma_modify_qp_roce(struct ib_qp *ibqp, struct ib_qp_attr *attr,504			 int attr_mask, struct ib_udata *udata);505void irdma_cq_add_ref(struct ib_cq *ibcq);506void irdma_cq_rem_ref(struct ib_cq *ibcq);507void irdma_cq_wq_destroy(struct irdma_pci_f *rf, struct irdma_sc_cq *cq);508 509void irdma_cleanup_pending_cqp_op(struct irdma_pci_f *rf);510int irdma_hw_modify_qp(struct irdma_device *iwdev, struct irdma_qp *iwqp,511		       struct irdma_modify_qp_info *info, bool wait);512int irdma_qp_suspend_resume(struct irdma_sc_qp *qp, bool suspend);513int irdma_manage_qhash(struct irdma_device *iwdev, struct irdma_cm_info *cminfo,514		       enum irdma_quad_entry_type etype,515		       enum irdma_quad_hash_manage_type mtype, void *cmnode,516		       bool wait);517void irdma_receive_ilq(struct irdma_sc_vsi *vsi, struct irdma_puda_buf *rbuf);518void irdma_free_sqbuf(struct irdma_sc_vsi *vsi, void *bufp);519void irdma_free_qp_rsrc(struct irdma_qp *iwqp);520int irdma_setup_cm_core(struct irdma_device *iwdev, u8 ver);521void irdma_cleanup_cm_core(struct irdma_cm_core *cm_core);522void irdma_next_iw_state(struct irdma_qp *iwqp, u8 state, u8 del_hash, u8 term,523			 u8 term_len);524int irdma_send_syn(struct irdma_cm_node *cm_node, u32 sendack);525int irdma_send_reset(struct irdma_cm_node *cm_node);526struct irdma_cm_node *irdma_find_node(struct irdma_cm_core *cm_core,527				      u16 rem_port, u32 *rem_addr, u16 loc_port,528				      u32 *loc_addr, u16 vlan_id);529int irdma_hw_flush_wqes(struct irdma_pci_f *rf, struct irdma_sc_qp *qp,530			struct irdma_qp_flush_info *info, bool wait);531void irdma_gen_ae(struct irdma_pci_f *rf, struct irdma_sc_qp *qp,532		  struct irdma_gen_ae_info *info, bool wait);533void irdma_copy_ip_ntohl(u32 *dst, __be32 *src);534void irdma_copy_ip_htonl(__be32 *dst, u32 *src);535u16 irdma_get_vlan_ipv4(u32 *addr);536void irdma_get_vlan_mac_ipv6(u32 *addr, u16 *vlan_id, u8 *mac);537struct ib_mr *irdma_reg_phys_mr(struct ib_pd *ib_pd, u64 addr, u64 size,538				int acc, u64 *iova_start);539int irdma_upload_qp_context(struct irdma_qp *iwqp, bool freeze, bool raw);540void irdma_cqp_ce_handler(struct irdma_pci_f *rf, struct irdma_sc_cq *cq);541int irdma_ah_cqp_op(struct irdma_pci_f *rf, struct irdma_sc_ah *sc_ah, u8 cmd,542		    bool wait,543		    void (*callback_fcn)(struct irdma_cqp_request *cqp_request),544		    void *cb_param);545void irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request *cqp_request);546bool irdma_cq_empty(struct irdma_cq *iwcq);547int irdma_inetaddr_event(struct notifier_block *notifier, unsigned long event,548			 void *ptr);549int irdma_inet6addr_event(struct notifier_block *notifier, unsigned long event,550			  void *ptr);551int irdma_net_event(struct notifier_block *notifier, unsigned long event,552		    void *ptr);553int irdma_netdevice_event(struct notifier_block *notifier, unsigned long event,554			  void *ptr);555void irdma_add_ip(struct irdma_device *iwdev);556void cqp_compl_worker(struct work_struct *work);557#endif /* IRDMA_MAIN_H */558