1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
2 /* QLogic qede NIC Driver
3 * Copyright (c) 2015-2017 QLogic Corporation
4 * Copyright (c) 2019-2020 Marvell International Ltd.
9 #include <linux/compiler.h>
10 #include <linux/version.h>
11 #include <linux/workqueue.h>
12 #include <linux/netdevice.h>
13 #include <linux/interrupt.h>
14 #include <linux/bitmap.h>
15 #include <linux/kernel.h>
16 #include <linux/mutex.h>
17 #include <linux/bpf.h>
19 #include <linux/qed/qede_rdma.h>
21 #ifdef CONFIG_RFS_ACCEL
22 #include <linux/cpu_rmap.h>
24 #include <linux/qed/common_hsi.h>
25 #include <linux/qed/eth_common.h>
26 #include <linux/qed/qed_if.h>
27 #include <linux/qed/qed_chain.h>
28 #include <linux/qed/qed_eth_if.h>
30 #include <net/pkt_cls.h>
31 #include <net/tc_act/tc_gact.h>
33 #define QEDE_MAJOR_VERSION 8
34 #define QEDE_MINOR_VERSION 37
35 #define QEDE_REVISION_VERSION 0
36 #define QEDE_ENGINEERING_VERSION 20
37 #define DRV_MODULE_VERSION __stringify(QEDE_MAJOR_VERSION) "." \
38 __stringify(QEDE_MINOR_VERSION) "." \
39 __stringify(QEDE_REVISION_VERSION) "." \
40 __stringify(QEDE_ENGINEERING_VERSION)
42 #define DRV_MODULE_SYM qede
44 struct qede_stats_common {
46 u64 packet_too_big_discard;
54 u64 mftag_filter_discards;
55 u64 mac_filter_discards;
66 u64 coalesced_aborts_num;
67 u64 non_coalesced_pkts;
69 u64 link_change_count;
73 u64 rx_64_byte_packets;
74 u64 rx_65_to_127_byte_packets;
75 u64 rx_128_to_255_byte_packets;
76 u64 rx_256_to_511_byte_packets;
77 u64 rx_512_to_1023_byte_packets;
78 u64 rx_1024_to_1518_byte_packets;
80 u64 rx_mac_crtl_frames;
84 u64 rx_carrier_errors;
85 u64 rx_oversize_packets;
87 u64 rx_undersize_packets;
89 u64 tx_64_byte_packets;
90 u64 tx_65_to_127_byte_packets;
91 u64 tx_128_to_255_byte_packets;
92 u64 tx_256_to_511_byte_packets;
93 u64 tx_512_to_1023_byte_packets;
94 u64 tx_1024_to_1518_byte_packets;
99 u64 tx_mac_ctrl_frames;
102 struct qede_stats_bb {
103 u64 rx_1519_to_1522_byte_packets;
104 u64 rx_1519_to_2047_byte_packets;
105 u64 rx_2048_to_4095_byte_packets;
106 u64 rx_4096_to_9216_byte_packets;
107 u64 rx_9217_to_16383_byte_packets;
108 u64 tx_1519_to_2047_byte_packets;
109 u64 tx_2048_to_4095_byte_packets;
110 u64 tx_4096_to_9216_byte_packets;
111 u64 tx_9217_to_16383_byte_packets;
112 u64 tx_lpi_entry_count;
113 u64 tx_total_collisions;
116 struct qede_stats_ah {
117 u64 rx_1519_to_max_byte_packets;
118 u64 tx_1519_to_max_byte_packets;
122 struct qede_stats_common common;
125 struct qede_stats_bb bb;
126 struct qede_stats_ah ah;
131 struct list_head list;
136 struct qede_rdma_dev {
137 struct qedr_dev *qedr_dev;
138 struct list_head entry;
139 struct list_head rdma_event_list;
140 struct workqueue_struct *rdma_wq;
142 struct completion event_comp;
148 #define QEDE_RFS_MAX_FLTR 256
150 enum qede_flags_bit {
151 QEDE_FLAGS_IS_VF = 0,
152 QEDE_FLAGS_LINK_REQUESTED,
153 QEDE_FLAGS_PTP_TX_IN_PRORGESS,
154 QEDE_FLAGS_TX_TIMESTAMPING_EN
157 #define QEDE_DUMP_MAX_ARGS 4
159 QEDE_DUMP_CMD_NONE = 0,
160 QEDE_DUMP_CMD_NVM_CFG,
161 QEDE_DUMP_CMD_GRCDUMP,
165 struct qede_dump_info {
166 enum qede_dump_cmd cmd;
168 u32 args[QEDE_DUMP_MAX_ARGS];
172 struct qed_dev *cdev;
173 struct net_device *ndev;
174 struct pci_dev *pdev;
175 struct devlink *devlink;
181 #define IS_VF(edev) test_bit(QEDE_FLAGS_IS_VF, \
184 const struct qed_eth_ops *ops;
185 struct qede_ptp *ptp;
188 struct qed_dev_eth_info dev_info;
189 #define QEDE_MAX_RSS_CNT(edev) ((edev)->dev_info.num_queues)
190 #define QEDE_MAX_TSS_CNT(edev) ((edev)->dev_info.num_queues)
191 #define QEDE_IS_BB(edev) \
192 ((edev)->dev_info.common.dev_type == QED_DEV_TYPE_BB)
193 #define QEDE_IS_AH(edev) \
194 ((edev)->dev_info.common.dev_type == QED_DEV_TYPE_AH)
196 struct qede_fastpath *fp_array;
203 u16 total_xdp_queues;
205 #define QEDE_QUEUE_CNT(edev) ((edev)->num_queues)
206 #define QEDE_RSS_COUNT(edev) ((edev)->num_queues - (edev)->fp_num_tx)
207 #define QEDE_RX_QUEUE_IDX(edev, i) (i)
208 #define QEDE_TSS_COUNT(edev) ((edev)->num_queues - (edev)->fp_num_rx)
210 struct qed_int_info int_info;
212 /* Smaller private variant of the RTNL lock */
213 struct mutex qede_lock;
214 u32 state; /* Protected by qede_lock */
218 /* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */
219 #define ETH_OVERHEAD (ETH_HLEN + 8 + 8)
220 /* Max supported alignment is 256 (8 shift)
221 * minimal alignment shift 6 is optimal for 57xxx HW performance
223 #define QEDE_RX_ALIGN_SHIFT max(6, min(8, L1_CACHE_SHIFT))
224 /* We assume skb_build() uses sizeof(struct skb_shared_info) bytes
225 * at the end of skb->data, to avoid wasting a full cache line.
226 * This reduces memory use (skb->truesize).
228 #define QEDE_FW_RX_ALIGN_END \
229 max_t(u64, 1UL << QEDE_RX_ALIGN_SHIFT, \
230 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
232 struct qede_stats stats;
234 /* Bitfield to track initialized RSS params */
235 u32 rss_params_inited;
236 #define QEDE_RSS_INDIR_INITED BIT(0)
237 #define QEDE_RSS_KEY_INITED BIT(1)
238 #define QEDE_RSS_CAPS_INITED BIT(2)
240 u16 rss_ind_table[128];
244 /* Both must be a power of two */
245 u16 q_num_rx_buffers;
246 u16 q_num_tx_buffers;
250 struct list_head vlan_list;
251 u16 configured_vlans;
252 u16 non_configured_vlans;
253 bool accept_any_vlan;
255 struct delayed_work sp_task;
256 unsigned long sp_flags;
260 struct qede_arfs *arfs;
263 struct qede_rdma_dev rdma_info;
265 struct bpf_prog *xdp_prog;
267 enum qed_hw_err_type last_err_type;
268 unsigned long err_flags;
269 #define QEDE_ERR_IS_HANDLED 31
270 #define QEDE_ERR_ATTN_CLR_EN 0
271 #define QEDE_ERR_GET_DBG_INFO 1
272 #define QEDE_ERR_IS_RECOVERABLE 2
273 #define QEDE_ERR_WARN 3
275 struct qede_dump_info dump_info;
276 struct delayed_work periodic_task;
277 unsigned long stats_coal_ticks;
278 u32 stats_coal_usecs;
279 spinlock_t stats_lock; /* lock for vport stats access */
288 #define HILO_U64(hi, lo) ((((u64)(hi)) << 32) + (lo))
291 #define MAX_NUM_PRI 8
293 /* The driver supports the new build_skb() API:
294 * RX ring buffer contains pointer to kmalloc() data only,
295 * skb are built only after the frame was DMA-ed.
300 unsigned int page_offset;
303 enum qede_agg_state {
304 QEDE_AGG_STATE_NONE = 0,
305 QEDE_AGG_STATE_START = 1,
306 QEDE_AGG_STATE_ERROR = 2
309 struct qede_agg_info {
310 /* rx_buf is a data buffer that can be placed / consumed from rx bd
311 * chain. It has two purposes: We will preallocate the data buffer
312 * for each aggregation when we open the interface and will place this
313 * buffer on the rx-bd-ring when we receive TPA_START. We don't want
314 * to be in a state where allocation fails, as we can't reuse the
315 * consumer buffer in the rx-chain since FW may still be writing to it
316 * (since header needs to be modified for TPA).
317 * The second purpose is to keep a pointer to the bd buffer during
320 struct sw_rx_data buffer;
323 /* We need some structs from the start cookie until termination */
333 struct qede_rx_queue {
335 void __iomem *hw_rxq_prod_addr;
337 /* Required for the allocation of replacement buffers */
340 struct bpf_prog *xdp_prog;
349 /* Used once per each NAPI run */
357 struct sw_rx_data *sw_rx_ring;
358 struct qed_chain rx_bd_ring;
359 struct qed_chain rx_comp_ring ____cacheline_aligned;
362 struct qede_agg_info tpa_info[ETH_TPA_MAX_AGGS_NUM];
364 /* Used once per each NAPI run */
374 struct xdp_rxq_info xdp_rxq;
378 struct eth_db_data data;
385 /* Set on the first BD descriptor when there is a split BD */
386 #define QEDE_TSO_SPLIT_BD BIT(0)
391 struct xdp_frame *xdpf;
395 struct qede_tx_queue {
400 u16 num_tx_buffers; /* Slowpath only */
404 u64 tx_mem_alloc_err;
408 /* Needed for the mapping of packets */
411 void __iomem *doorbell_addr;
414 /* Spinlock for XDP queues in case of XDP_REDIRECT */
415 spinlock_t xdp_tx_lock;
417 int index; /* Slowpath only */
418 #define QEDE_TXQ_XDP_TO_IDX(edev, txq) ((txq)->index - \
419 QEDE_MAX_TSS_CNT(edev))
420 #define QEDE_TXQ_IDX_TO_XDP(edev, idx) ((idx) + QEDE_MAX_TSS_CNT(edev))
421 #define QEDE_NDEV_TXQ_ID_TO_FP_ID(edev, idx) ((edev)->fp_num_rx + \
422 ((idx) % QEDE_TSS_COUNT(edev)))
423 #define QEDE_NDEV_TXQ_ID_TO_TXQ_COS(edev, idx) ((idx) / QEDE_TSS_COUNT(edev))
424 #define QEDE_TXQ_TO_NDEV_TXQ_ID(edev, txq) ((QEDE_TSS_COUNT(edev) * \
425 (txq)->cos) + (txq)->index)
426 #define QEDE_NDEV_TXQ_ID_TO_TXQ(edev, idx) \
427 (&((edev)->fp_array[QEDE_NDEV_TXQ_ID_TO_FP_ID(edev, idx)].txq \
428 [QEDE_NDEV_TXQ_ID_TO_TXQ_COS(edev, idx)]))
429 #define QEDE_FP_TC0_TXQ(fp) (&((fp)->txq[0]))
431 /* Regular Tx requires skb + metadata for release purpose,
432 * while XDP requires the pages and the mapped address.
435 struct sw_tx_bd *skbs;
436 struct sw_tx_xdp *xdp;
439 struct qed_chain tx_pbl;
441 /* Slowpath; Should be kept in end [unless missing padding] */
447 #define BD_UNMAP_ADDR(bd) HILO_U64(le32_to_cpu((bd)->addr.hi), \
448 le32_to_cpu((bd)->addr.lo))
449 #define BD_SET_UNMAP_ADDR_LEN(bd, maddr, len) \
451 (bd)->addr.hi = cpu_to_le32(upper_32_bits(maddr)); \
452 (bd)->addr.lo = cpu_to_le32(lower_32_bits(maddr)); \
453 (bd)->nbytes = cpu_to_le16(len); \
455 #define BD_UNMAP_LEN(bd) (le16_to_cpu((bd)->nbytes))
457 struct qede_fastpath {
458 struct qede_dev *edev;
461 #define QEDE_FASTPATH_TX BIT(0)
462 #define QEDE_FASTPATH_RX BIT(1)
463 #define QEDE_FASTPATH_XDP BIT(2)
464 #define QEDE_FASTPATH_COMBINED (QEDE_FASTPATH_TX | QEDE_FASTPATH_RX)
469 #define QEDE_XDP_TX BIT(0)
470 #define QEDE_XDP_REDIRECT BIT(1)
472 struct napi_struct napi;
473 struct qed_sb_info *sb_info;
474 struct qede_rx_queue *rxq;
475 struct qede_tx_queue *txq;
476 struct qede_tx_queue *xdp_tx;
478 char name[IFNAMSIZ + 8];
481 /* Debug print definitions */
482 #define DP_NAME(edev) netdev_name((edev)->ndev)
485 #define XMIT_L4_CSUM BIT(0)
486 #define XMIT_LSO BIT(1)
487 #define XMIT_ENC BIT(2)
488 #define XMIT_ENC_GSO_L4_CSUM BIT(3)
490 #define QEDE_CSUM_ERROR BIT(0)
491 #define QEDE_CSUM_UNNECESSARY BIT(1)
492 #define QEDE_TUNN_CSUM_UNNECESSARY BIT(2)
494 #define QEDE_SP_RECOVERY 0
495 #define QEDE_SP_RX_MODE 1
496 #define QEDE_SP_RSVD1 2
497 #define QEDE_SP_RSVD2 3
498 #define QEDE_SP_HW_ERR 4
499 #define QEDE_SP_ARFS_CONFIG 5
500 #define QEDE_SP_AER 7
501 #define QEDE_SP_DISABLE 8
503 #ifdef CONFIG_RFS_ACCEL
504 int qede_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
505 u16 rxq_index, u32 flow_id);
506 #define QEDE_SP_TASK_POLL_DELAY (5 * HZ)
509 void qede_process_arfs_filters(struct qede_dev *edev, bool free_fltr);
510 void qede_poll_for_freeing_arfs_filters(struct qede_dev *edev);
511 void qede_arfs_filter_op(void *dev, void *filter, u8 fw_rc);
512 void qede_free_arfs(struct qede_dev *edev);
513 int qede_alloc_arfs(struct qede_dev *edev);
514 int qede_add_cls_rule(struct qede_dev *edev, struct ethtool_rxnfc *info);
515 int qede_delete_flow_filter(struct qede_dev *edev, u64 cookie);
516 int qede_get_cls_rule_entry(struct qede_dev *edev, struct ethtool_rxnfc *cmd);
517 int qede_get_cls_rule_all(struct qede_dev *edev, struct ethtool_rxnfc *info,
519 int qede_get_arfs_filter_count(struct qede_dev *edev);
521 struct qede_reload_args {
522 void (*func)(struct qede_dev *edev, struct qede_reload_args *args);
524 netdev_features_t features;
525 struct bpf_prog *new_prog;
530 /* Datapath functions definition */
531 netdev_tx_t qede_start_xmit(struct sk_buff *skb, struct net_device *ndev);
532 int qede_xdp_transmit(struct net_device *dev, int n_frames,
533 struct xdp_frame **frames, u32 flags);
534 u16 qede_select_queue(struct net_device *dev, struct sk_buff *skb,
535 struct net_device *sb_dev);
536 netdev_features_t qede_features_check(struct sk_buff *skb,
537 struct net_device *dev,
538 netdev_features_t features);
539 int qede_alloc_rx_buffer(struct qede_rx_queue *rxq, bool allow_lazy);
540 int qede_free_tx_pkt(struct qede_dev *edev,
541 struct qede_tx_queue *txq, int *len);
542 int qede_poll(struct napi_struct *napi, int budget);
543 irqreturn_t qede_msix_fp_int(int irq, void *fp_cookie);
545 /* Filtering function definitions */
546 void qede_force_mac(void *dev, u8 *mac, bool forced);
547 void qede_udp_ports_update(void *dev, u16 vxlan_port, u16 geneve_port);
548 int qede_set_mac_addr(struct net_device *ndev, void *p);
550 int qede_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid);
551 int qede_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid);
552 void qede_vlan_mark_nonconfigured(struct qede_dev *edev);
553 int qede_configure_vlan_filters(struct qede_dev *edev);
555 netdev_features_t qede_fix_features(struct net_device *dev,
556 netdev_features_t features);
557 int qede_set_features(struct net_device *dev, netdev_features_t features);
558 void qede_set_rx_mode(struct net_device *ndev);
559 void qede_config_rx_mode(struct net_device *ndev);
560 void qede_fill_rss_params(struct qede_dev *edev,
561 struct qed_update_vport_rss_params *rss, u8 *update);
563 void qede_udp_tunnel_add(struct net_device *dev, struct udp_tunnel_info *ti);
564 void qede_udp_tunnel_del(struct net_device *dev, struct udp_tunnel_info *ti);
566 int qede_xdp(struct net_device *dev, struct netdev_bpf *xdp);
569 void qede_set_dcbnl_ops(struct net_device *ndev);
572 void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level);
573 void qede_set_ethtool_ops(struct net_device *netdev);
574 void qede_set_udp_tunnels(struct qede_dev *edev);
575 void qede_reload(struct qede_dev *edev,
576 struct qede_reload_args *args, bool is_locked);
577 int qede_change_mtu(struct net_device *dev, int new_mtu);
578 void qede_fill_by_demand_stats(struct qede_dev *edev);
579 void __qede_lock(struct qede_dev *edev);
580 void __qede_unlock(struct qede_dev *edev);
581 bool qede_has_rx_work(struct qede_rx_queue *rxq);
582 int qede_txq_has_work(struct qede_tx_queue *txq);
583 void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq, u8 count);
584 void qede_update_rx_prod(struct qede_dev *edev, struct qede_rx_queue *rxq);
585 int qede_add_tc_flower_fltr(struct qede_dev *edev, __be16 proto,
586 struct flow_cls_offload *f);
588 void qede_forced_speed_maps_init(void);
590 #define RX_RING_SIZE_POW 13
591 #define RX_RING_SIZE ((u16)BIT(RX_RING_SIZE_POW))
592 #define NUM_RX_BDS_MAX (RX_RING_SIZE - 1)
593 #define NUM_RX_BDS_MIN 128
594 #define NUM_RX_BDS_KDUMP_MIN 63
595 #define NUM_RX_BDS_DEF ((u16)BIT(10) - 1)
597 #define TX_RING_SIZE_POW 13
598 #define TX_RING_SIZE ((u16)BIT(TX_RING_SIZE_POW))
599 #define NUM_TX_BDS_MAX (TX_RING_SIZE - 1)
600 #define NUM_TX_BDS_MIN 128
601 #define NUM_TX_BDS_KDUMP_MIN 63
602 #define NUM_TX_BDS_DEF NUM_TX_BDS_MAX
604 #define QEDE_MIN_PKT_LEN 64
605 #define QEDE_RX_HDR_SIZE 256
606 #define QEDE_MAX_JUMBO_PACKET_SIZE 9600
607 #define for_each_queue(i) for (i = 0; i < edev->num_queues; i++)
608 #define for_each_cos_in_txq(edev, var) \
609 for ((var) = 0; (var) < (edev)->dev_info.num_tc; (var)++)
611 #endif /* _QEDE_H_ */