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1/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */2/* QLogic qede NIC Driver3 * Copyright (c) 2015-2017  QLogic Corporation4 * Copyright (c) 2019-2020 Marvell International Ltd.5 */6 7#ifndef _QEDE_H_8#define _QEDE_H_9#include <linux/workqueue.h>10#include <linux/netdevice.h>11#include <linux/interrupt.h>12#include <linux/bitmap.h>13#include <linux/kernel.h>14#include <linux/mutex.h>15#include <linux/bpf.h>16#include <net/xdp.h>17#include <linux/qed/qede_rdma.h>18#include <linux/io.h>19#ifdef CONFIG_RFS_ACCEL20#include <linux/cpu_rmap.h>21#endif22#include <linux/qed/common_hsi.h>23#include <linux/qed/eth_common.h>24#include <linux/qed/qed_if.h>25#include <linux/qed/qed_chain.h>26#include <linux/qed/qed_eth_if.h>27 28#include <net/pkt_cls.h>29#include <net/tc_act/tc_gact.h>30 31#define DRV_MODULE_SYM		qede32 33struct qede_stats_common {34	u64 no_buff_discards;35	u64 packet_too_big_discard;36	u64 ttl0_discard;37	u64 rx_ucast_bytes;38	u64 rx_mcast_bytes;39	u64 rx_bcast_bytes;40	u64 rx_ucast_pkts;41	u64 rx_mcast_pkts;42	u64 rx_bcast_pkts;43	u64 mftag_filter_discards;44	u64 mac_filter_discards;45	u64 gft_filter_drop;46	u64 tx_ucast_bytes;47	u64 tx_mcast_bytes;48	u64 tx_bcast_bytes;49	u64 tx_ucast_pkts;50	u64 tx_mcast_pkts;51	u64 tx_bcast_pkts;52	u64 tx_err_drop_pkts;53	u64 coalesced_pkts;54	u64 coalesced_events;55	u64 coalesced_aborts_num;56	u64 non_coalesced_pkts;57	u64 coalesced_bytes;58	u64 link_change_count;59	u64 ptp_skip_txts;60 61	/* port */62	u64 rx_64_byte_packets;63	u64 rx_65_to_127_byte_packets;64	u64 rx_128_to_255_byte_packets;65	u64 rx_256_to_511_byte_packets;66	u64 rx_512_to_1023_byte_packets;67	u64 rx_1024_to_1518_byte_packets;68	u64 rx_crc_errors;69	u64 rx_mac_crtl_frames;70	u64 rx_pause_frames;71	u64 rx_pfc_frames;72	u64 rx_align_errors;73	u64 rx_carrier_errors;74	u64 rx_oversize_packets;75	u64 rx_jabbers;76	u64 rx_undersize_packets;77	u64 rx_fragments;78	u64 tx_64_byte_packets;79	u64 tx_65_to_127_byte_packets;80	u64 tx_128_to_255_byte_packets;81	u64 tx_256_to_511_byte_packets;82	u64 tx_512_to_1023_byte_packets;83	u64 tx_1024_to_1518_byte_packets;84	u64 tx_pause_frames;85	u64 tx_pfc_frames;86	u64 brb_truncates;87	u64 brb_discards;88	u64 tx_mac_ctrl_frames;89};90 91struct qede_stats_bb {92	u64 rx_1519_to_1522_byte_packets;93	u64 rx_1519_to_2047_byte_packets;94	u64 rx_2048_to_4095_byte_packets;95	u64 rx_4096_to_9216_byte_packets;96	u64 rx_9217_to_16383_byte_packets;97	u64 tx_1519_to_2047_byte_packets;98	u64 tx_2048_to_4095_byte_packets;99	u64 tx_4096_to_9216_byte_packets;100	u64 tx_9217_to_16383_byte_packets;101	u64 tx_lpi_entry_count;102	u64 tx_total_collisions;103};104 105struct qede_stats_ah {106	u64 rx_1519_to_max_byte_packets;107	u64 tx_1519_to_max_byte_packets;108};109 110struct qede_stats {111	struct qede_stats_common common;112 113	union {114		struct qede_stats_bb bb;115		struct qede_stats_ah ah;116	};117};118 119struct qede_vlan {120	struct list_head list;121	u16 vid;122	bool configured;123};124 125struct qede_rdma_dev {126	struct qedr_dev *qedr_dev;127	struct list_head entry;128	struct list_head rdma_event_list;129	struct workqueue_struct *rdma_wq;130	struct kref refcnt;131	struct completion event_comp;132	bool exp_recovery;133};134 135struct qede_ptp;136 137#define QEDE_RFS_MAX_FLTR	256138 139enum qede_flags_bit {140	QEDE_FLAGS_IS_VF = 0,141	QEDE_FLAGS_LINK_REQUESTED,142	QEDE_FLAGS_PTP_TX_IN_PRORGESS,143	QEDE_FLAGS_TX_TIMESTAMPING_EN144};145 146#define QEDE_DUMP_MAX_ARGS 4147enum qede_dump_cmd {148	QEDE_DUMP_CMD_NONE = 0,149	QEDE_DUMP_CMD_NVM_CFG,150	QEDE_DUMP_CMD_GRCDUMP,151	QEDE_DUMP_CMD_MAX152};153 154struct qede_dump_info {155	enum qede_dump_cmd cmd;156	u8 num_args;157	u32 args[QEDE_DUMP_MAX_ARGS];158};159 160struct qede_coalesce {161	bool isvalid;162	u16 rxc;163	u16 txc;164};165 166struct qede_dev {167	struct qed_dev			*cdev;168	struct net_device		*ndev;169	struct pci_dev			*pdev;170	struct devlink			*devlink;171 172	u32				dp_module;173	u8				dp_level;174 175	unsigned long			flags;176#define IS_VF(edev)			test_bit(QEDE_FLAGS_IS_VF, \177						 &(edev)->flags)178 179	const struct qed_eth_ops	*ops;180	struct qede_ptp			*ptp;181	u64				ptp_skip_txts;182 183	struct qed_dev_eth_info		dev_info;184#define QEDE_MAX_RSS_CNT(edev)		((edev)->dev_info.num_queues)185#define QEDE_MAX_TSS_CNT(edev)		((edev)->dev_info.num_queues)186#define QEDE_IS_BB(edev) \187	((edev)->dev_info.common.dev_type == QED_DEV_TYPE_BB)188#define QEDE_IS_AH(edev) \189	((edev)->dev_info.common.dev_type == QED_DEV_TYPE_AH)190 191	struct qede_fastpath		*fp_array;192	struct qede_coalesce            *coal_entry;193	u8				req_num_tx;194	u8				fp_num_tx;195	u8				req_num_rx;196	u8				fp_num_rx;197	u16				req_queues;198	u16				num_queues;199	u16				total_xdp_queues;200 201#define QEDE_QUEUE_CNT(edev)		((edev)->num_queues)202#define QEDE_RSS_COUNT(edev)		((edev)->num_queues - (edev)->fp_num_tx)203#define QEDE_RX_QUEUE_IDX(edev, i)	(i)204#define QEDE_TSS_COUNT(edev)		((edev)->num_queues - (edev)->fp_num_rx)205 206	struct qed_int_info		int_info;207 208	/* Smaller private variant of the RTNL lock */209	struct mutex			qede_lock;210	u32				state; /* Protected by qede_lock */211	u16				rx_buf_size;212	u32				rx_copybreak;213 214	/* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */215#define ETH_OVERHEAD			(ETH_HLEN + 8 + 8)216	/* Max supported alignment is 256 (8 shift)217	 * minimal alignment shift 6 is optimal for 57xxx HW performance218	 */219#define QEDE_RX_ALIGN_SHIFT		max(6, min(8, L1_CACHE_SHIFT))220	/* We assume skb_build() uses sizeof(struct skb_shared_info) bytes221	 * at the end of skb->data, to avoid wasting a full cache line.222	 * This reduces memory use (skb->truesize).223	 */224#define QEDE_FW_RX_ALIGN_END					\225	max_t(u64, 1UL << QEDE_RX_ALIGN_SHIFT,			\226	      SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))227 228	struct qede_stats		stats;229 230	/* Bitfield to track initialized RSS params */231	u32				rss_params_inited;232#define QEDE_RSS_INDIR_INITED		BIT(0)233#define QEDE_RSS_KEY_INITED		BIT(1)234#define QEDE_RSS_CAPS_INITED		BIT(2)235 236	u16				rss_ind_table[128];237	u32				rss_key[10];238	u8				rss_caps;239 240	/* Both must be a power of two */241	u16				q_num_rx_buffers;242	u16				q_num_tx_buffers;243 244	bool				gro_disable;245 246	struct list_head		vlan_list;247	u16				configured_vlans;248	u16				non_configured_vlans;249	bool				accept_any_vlan;250 251	struct delayed_work		sp_task;252	unsigned long			sp_flags;253	u16				vxlan_dst_port;254	u16				geneve_dst_port;255 256	struct qede_arfs		*arfs;257	bool				wol_enabled;258 259	struct qede_rdma_dev		rdma_info;260 261	struct bpf_prog			*xdp_prog;262 263	enum qed_hw_err_type		last_err_type;264	unsigned long			err_flags;265#define QEDE_ERR_IS_HANDLED		31266#define QEDE_ERR_ATTN_CLR_EN		0267#define QEDE_ERR_GET_DBG_INFO		1268#define QEDE_ERR_IS_RECOVERABLE		2269#define QEDE_ERR_WARN			3270 271	struct qede_dump_info		dump_info;272	struct delayed_work		periodic_task;273	unsigned long			stats_coal_ticks;274	u32				stats_coal_usecs;275	spinlock_t			stats_lock; /* lock for vport stats access */276};277 278enum QEDE_STATE {279	QEDE_STATE_CLOSED,280	QEDE_STATE_OPEN,281	QEDE_STATE_RECOVERY,282};283 284#define HILO_U64(hi, lo)		((((u64)(hi)) << 32) + (lo))285 286#define	MAX_NUM_TC	8287#define	MAX_NUM_PRI	8288 289/* The driver supports the new build_skb() API:290 * RX ring buffer contains pointer to kmalloc() data only,291 * skb are built only after the frame was DMA-ed.292 */293struct sw_rx_data {294	struct page *data;295	dma_addr_t mapping;296	unsigned int page_offset;297};298 299enum qede_agg_state {300	QEDE_AGG_STATE_NONE  = 0,301	QEDE_AGG_STATE_START = 1,302	QEDE_AGG_STATE_ERROR = 2303};304 305struct qede_agg_info {306	/* rx_buf is a data buffer that can be placed / consumed from rx bd307	 * chain. It has two purposes: We will preallocate the data buffer308	 * for each aggregation when we open the interface and will place this309	 * buffer on the rx-bd-ring when we receive TPA_START. We don't want310	 * to be in a state where allocation fails, as we can't reuse the311	 * consumer buffer in the rx-chain since FW may still be writing to it312	 * (since header needs to be modified for TPA).313	 * The second purpose is to keep a pointer to the bd buffer during314	 * aggregation.315	 */316	struct sw_rx_data buffer;317	struct sk_buff *skb;318 319	/* We need some structs from the start cookie until termination */320	u16 vlan_tag;321 322	bool tpa_start_fail;323	u8 state;324	u8 frag_id;325 326	u8 tunnel_type;327};328 329struct qede_rx_queue {330	__le16 *hw_cons_ptr;331	void __iomem *hw_rxq_prod_addr;332 333	/* Required for the allocation of replacement buffers */334	struct device *dev;335 336	struct bpf_prog *xdp_prog;337 338	u16 sw_rx_cons;339	u16 sw_rx_prod;340 341	u16 filled_buffers;342	u8 data_direction;343	u8 rxq_id;344 345	/* Used once per each NAPI run */346	u16 num_rx_buffers;347 348	u16 rx_headroom;349 350	u32 rx_buf_size;351	u32 rx_buf_seg_size;352 353	struct sw_rx_data *sw_rx_ring;354	struct qed_chain rx_bd_ring;355	struct qed_chain rx_comp_ring ____cacheline_aligned;356 357	/* GRO */358	struct qede_agg_info tpa_info[ETH_TPA_MAX_AGGS_NUM];359 360	/* Used once per each NAPI run */361	u64 rcv_pkts;362 363	u64 rx_hw_errors;364	u64 rx_alloc_errors;365	u64 rx_ip_frags;366 367	u64 xdp_no_pass;368 369	void *handle;370	struct xdp_rxq_info xdp_rxq;371};372 373union db_prod {374	struct eth_db_data data;375	u32		raw;376};377 378struct sw_tx_bd {379	struct sk_buff *skb;380	u8 flags;381/* Set on the first BD descriptor when there is a split BD */382#define QEDE_TSO_SPLIT_BD		BIT(0)383};384 385struct sw_tx_xdp {386	struct page			*page;387	struct xdp_frame		*xdpf;388	dma_addr_t			mapping;389};390 391struct qede_tx_queue {392	u8				is_xdp;393	bool				is_legacy;394	u16				sw_tx_cons;395	u16				sw_tx_prod;396	u16				num_tx_buffers; /* Slowpath only */397 398	u64				xmit_pkts;399	u64				stopped_cnt;400	u64				tx_mem_alloc_err;401 402	__le16				*hw_cons_ptr;403 404	/* Needed for the mapping of packets */405	struct device			*dev;406 407	void __iomem			*doorbell_addr;408	union db_prod			tx_db;409 410	/* Spinlock for XDP queues in case of XDP_REDIRECT */411	spinlock_t			xdp_tx_lock;412 413	int				index; /* Slowpath only */414#define QEDE_TXQ_XDP_TO_IDX(edev, txq)	((txq)->index - \415					 QEDE_MAX_TSS_CNT(edev))416#define QEDE_TXQ_IDX_TO_XDP(edev, idx)	((idx) + QEDE_MAX_TSS_CNT(edev))417#define QEDE_NDEV_TXQ_ID_TO_FP_ID(edev, idx)	((edev)->fp_num_rx + \418						 ((idx) % QEDE_TSS_COUNT(edev)))419#define QEDE_NDEV_TXQ_ID_TO_TXQ_COS(edev, idx)	((idx) / QEDE_TSS_COUNT(edev))420#define QEDE_TXQ_TO_NDEV_TXQ_ID(edev, txq)	((QEDE_TSS_COUNT(edev) * \421						 (txq)->cos) + (txq)->index)422#define QEDE_NDEV_TXQ_ID_TO_TXQ(edev, idx)	\423	(&((edev)->fp_array[QEDE_NDEV_TXQ_ID_TO_FP_ID(edev, idx)].txq \424	[QEDE_NDEV_TXQ_ID_TO_TXQ_COS(edev, idx)]))425#define QEDE_FP_TC0_TXQ(fp)		(&((fp)->txq[0]))426 427	/* Regular Tx requires skb + metadata for release purpose,428	 * while XDP requires the pages and the mapped address.429	 */430	union {431		struct sw_tx_bd		*skbs;432		struct sw_tx_xdp	*xdp;433	}				sw_tx_ring;434 435	struct qed_chain		tx_pbl;436 437	/* Slowpath; Should be kept in end [unless missing padding] */438	void				*handle;439	u16				cos;440	u16				ndev_txq_id;441};442 443#define BD_UNMAP_ADDR(bd)		HILO_U64(le32_to_cpu((bd)->addr.hi), \444						 le32_to_cpu((bd)->addr.lo))445#define BD_SET_UNMAP_ADDR_LEN(bd, maddr, len)				\446	do {								\447		(bd)->addr.hi = cpu_to_le32(upper_32_bits(maddr));	\448		(bd)->addr.lo = cpu_to_le32(lower_32_bits(maddr));	\449		(bd)->nbytes = cpu_to_le16(len);			\450	} while (0)451#define BD_UNMAP_LEN(bd)		(le16_to_cpu((bd)->nbytes))452 453struct qede_fastpath {454	struct qede_dev			*edev;455 456	u8				type;457#define QEDE_FASTPATH_TX		BIT(0)458#define QEDE_FASTPATH_RX		BIT(1)459#define QEDE_FASTPATH_XDP		BIT(2)460#define QEDE_FASTPATH_COMBINED		(QEDE_FASTPATH_TX | QEDE_FASTPATH_RX)461 462	u8				id;463 464	u8				xdp_xmit;465#define QEDE_XDP_TX			BIT(0)466#define QEDE_XDP_REDIRECT		BIT(1)467 468	struct napi_struct		napi;469	struct qed_sb_info		*sb_info;470	struct qede_rx_queue		*rxq;471	struct qede_tx_queue		*txq;472	struct qede_tx_queue		*xdp_tx;473 474	char				name[IFNAMSIZ + 8];475};476 477/* Debug print definitions */478#define DP_NAME(edev)			netdev_name((edev)->ndev)479 480#define XMIT_PLAIN			0481#define XMIT_L4_CSUM			BIT(0)482#define XMIT_LSO			BIT(1)483#define XMIT_ENC			BIT(2)484#define XMIT_ENC_GSO_L4_CSUM		BIT(3)485 486#define QEDE_CSUM_ERROR			BIT(0)487#define QEDE_CSUM_UNNECESSARY		BIT(1)488#define QEDE_TUNN_CSUM_UNNECESSARY	BIT(2)489 490#define QEDE_SP_RECOVERY		0491#define QEDE_SP_RX_MODE			1492#define QEDE_SP_RSVD1                   2493#define QEDE_SP_RSVD2                   3494#define QEDE_SP_HW_ERR                  4495#define QEDE_SP_ARFS_CONFIG             5496#define QEDE_SP_AER			7497#define QEDE_SP_DISABLE			8498 499#ifdef CONFIG_RFS_ACCEL500int qede_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,501		       u16 rxq_index, u32 flow_id);502#define QEDE_SP_TASK_POLL_DELAY	(5 * HZ)503#endif504 505void qede_process_arfs_filters(struct qede_dev *edev, bool free_fltr);506void qede_poll_for_freeing_arfs_filters(struct qede_dev *edev);507void qede_arfs_filter_op(void *dev, void *filter, u8 fw_rc);508void qede_free_arfs(struct qede_dev *edev);509int qede_alloc_arfs(struct qede_dev *edev);510int qede_add_cls_rule(struct qede_dev *edev, struct ethtool_rxnfc *info);511int qede_delete_flow_filter(struct qede_dev *edev, u64 cookie);512int qede_get_cls_rule_entry(struct qede_dev *edev, struct ethtool_rxnfc *cmd);513int qede_get_cls_rule_all(struct qede_dev *edev, struct ethtool_rxnfc *info,514			  u32 *rule_locs);515int qede_get_arfs_filter_count(struct qede_dev *edev);516 517struct qede_reload_args {518	void (*func)(struct qede_dev *edev, struct qede_reload_args *args);519	union {520		netdev_features_t features;521		struct bpf_prog *new_prog;522		u16 mtu;523	} u;524};525 526/* Datapath functions definition */527netdev_tx_t qede_start_xmit(struct sk_buff *skb, struct net_device *ndev);528int qede_xdp_transmit(struct net_device *dev, int n_frames,529		      struct xdp_frame **frames, u32 flags);530u16 qede_select_queue(struct net_device *dev, struct sk_buff *skb,531		      struct net_device *sb_dev);532netdev_features_t qede_features_check(struct sk_buff *skb,533				      struct net_device *dev,534				      netdev_features_t features);535int qede_alloc_rx_buffer(struct qede_rx_queue *rxq, bool allow_lazy);536int qede_free_tx_pkt(struct qede_dev *edev,537		     struct qede_tx_queue *txq, int *len);538int qede_poll(struct napi_struct *napi, int budget);539irqreturn_t qede_msix_fp_int(int irq, void *fp_cookie);540 541/* Filtering function definitions */542void qede_force_mac(void *dev, u8 *mac, bool forced);543void qede_udp_ports_update(void *dev, u16 vxlan_port, u16 geneve_port);544int qede_set_mac_addr(struct net_device *ndev, void *p);545 546int qede_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid);547int qede_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid);548void qede_vlan_mark_nonconfigured(struct qede_dev *edev);549int qede_configure_vlan_filters(struct qede_dev *edev);550 551netdev_features_t qede_fix_features(struct net_device *dev,552				    netdev_features_t features);553int qede_set_features(struct net_device *dev, netdev_features_t features);554void qede_set_rx_mode(struct net_device *ndev);555void qede_config_rx_mode(struct net_device *ndev);556void qede_fill_rss_params(struct qede_dev *edev,557			  struct qed_update_vport_rss_params *rss, u8 *update);558 559int qede_xdp(struct net_device *dev, struct netdev_bpf *xdp);560 561#ifdef CONFIG_DCB562void qede_set_dcbnl_ops(struct net_device *ndev);563#endif564 565void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level);566void qede_set_ethtool_ops(struct net_device *netdev);567void qede_set_udp_tunnels(struct qede_dev *edev);568void qede_reload(struct qede_dev *edev,569		 struct qede_reload_args *args, bool is_locked);570int qede_change_mtu(struct net_device *dev, int new_mtu);571void qede_fill_by_demand_stats(struct qede_dev *edev);572void __qede_lock(struct qede_dev *edev);573void __qede_unlock(struct qede_dev *edev);574bool qede_has_rx_work(struct qede_rx_queue *rxq);575int qede_txq_has_work(struct qede_tx_queue *txq);576void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq, u8 count);577void qede_update_rx_prod(struct qede_dev *edev, struct qede_rx_queue *rxq);578int qede_add_tc_flower_fltr(struct qede_dev *edev, __be16 proto,579			    struct flow_cls_offload *f);580 581void qede_forced_speed_maps_init(void);582int qede_set_coalesce(struct net_device *dev, struct ethtool_coalesce *coal,583		      struct kernel_ethtool_coalesce *kernel_coal,584		      struct netlink_ext_ack *extack);585int qede_set_per_coalesce(struct net_device *dev, u32 queue,586			  struct ethtool_coalesce *coal);587 588#define RX_RING_SIZE_POW	13589#define RX_RING_SIZE		((u16)BIT(RX_RING_SIZE_POW))590#define NUM_RX_BDS_MAX		(RX_RING_SIZE - 1)591#define NUM_RX_BDS_MIN		128592#define NUM_RX_BDS_KDUMP_MIN	63593#define NUM_RX_BDS_DEF		((u16)BIT(10) - 1)594 595#define TX_RING_SIZE_POW	13596#define TX_RING_SIZE		((u16)BIT(TX_RING_SIZE_POW))597#define NUM_TX_BDS_MAX		(TX_RING_SIZE - 1)598#define NUM_TX_BDS_MIN		128599#define NUM_TX_BDS_KDUMP_MIN	63600#define NUM_TX_BDS_DEF		NUM_TX_BDS_MAX601 602#define QEDE_MIN_PKT_LEN		64603#define QEDE_RX_HDR_SIZE		256604#define QEDE_MAX_JUMBO_PACKET_SIZE	9600605#define	for_each_queue(i) for (i = 0; i < edev->num_queues; i++)606#define for_each_cos_in_txq(edev, var) \607	for ((var) = 0; (var) < (edev)->dev_info.num_tc; (var)++)608 609#endif /* _QEDE_H_ */610