diff options
Diffstat (limited to 'include/net/mana/mana.h')
| -rw-r--r-- | include/net/mana/mana.h | 162 |
1 files changed, 146 insertions, 16 deletions
diff --git a/include/net/mana/mana.h b/include/net/mana/mana.h index d7e089c6b694..83b7eff4646e 100644 --- a/include/net/mana/mana.h +++ b/include/net/mana/mana.h @@ -4,6 +4,7 @@ #ifndef _MANA_H #define _MANA_H +#include <linux/dim.h> #include <net/xdp.h> #include <net/net_shaper.h> @@ -30,6 +31,12 @@ enum TRI_STATE { TRI_STATE_TRUE = 1 }; +/* MANA ethtool private flag bit positions */ +enum mana_priv_flag_bits { + MANA_PRIV_FLAG_USE_FULL_PAGE_RXBUF = 0, + MANA_PRIV_FLAG_MAX, +}; + /* Number of entries for hardware indirection table must be in power of 2 */ #define MANA_INDIRECT_TABLE_MAX_SIZE 512 #define MANA_INDIRECT_TABLE_DEF_SIZE 64 @@ -61,8 +68,27 @@ enum TRI_STATE { #define MAX_PORTS_IN_MANA_DEV 256 +/* Maximum number of PPIs per coalesced CQE */ +#define MANA_RXCOMP_OOB_NUM_PPI 4 + +/* 8-pkt mode packs up to 2 packets per PPI entry */ +#define MANA_CQE_COAL_PKTS_8 8 + +/* Default/max interrupt moderation settings */ +#define MANA_INTR_MODR_USEC_DEF 0 +#define MANA_INTR_MODR_COMP_DEF 0 + +#define MANA_ADAPTIVE_RX_DEF true +#define MANA_ADAPTIVE_TX_DEF true + +/* DIM doorbell value field layout */ +#define MANA_INTR_MODR_USEC_MAX GENMASK(9, 0) +#define MANA_INTR_MODR_USEC_VLD BIT(15) +#define MANA_INTR_MODR_COMP_MAX GENMASK(7, 0) +#define MANA_INTR_MODR_COMP_MASK GENMASK(23, 16) + /* Update this count whenever the respective structures are changed */ -#define MANA_STATS_RX_COUNT 5 +#define MANA_STATS_RX_COUNT (6 + MANA_CQE_COAL_PKTS_8 - 1) #define MANA_STATS_TX_COUNT 11 #define MANA_RX_FRAG_ALIGNMENT 64 @@ -73,6 +99,8 @@ struct mana_stats_rx { u64 xdp_drop; u64 xdp_tx; u64 xdp_redirect; + u64 pkt_len0_err; + u64 coalesced_cqe[MANA_CQE_COAL_PKTS_8 - 1]; struct u64_stats_sync syncp; }; @@ -183,6 +211,7 @@ enum mana_cqe_type { CQE_RX_COALESCED_4 = 2, CQE_RX_OBJECT_FENCE = 3, CQE_RX_TRUNCATED = 4, + CQE_RX_COALESCED_8 = 7, CQE_TX_OKAY = 32, CQE_TX_SA_DROP = 33, @@ -219,16 +248,28 @@ struct mana_cqe_header { #define MANA_HASH_L4 \ (NDIS_HASH_TCP_IPV4 | NDIS_HASH_UDP_IPV4 | NDIS_HASH_TCP_IPV6 | \ NDIS_HASH_UDP_IPV6 | NDIS_HASH_TCP_IPV6_EX | NDIS_HASH_UDP_IPV6_EX) +#define MANA_HASH_ENABLE_SUPPORTED \ + (NDIS_HASH_IPV4 | NDIS_HASH_TCP_IPV4 | NDIS_HASH_UDP_IPV4 | \ + NDIS_HASH_IPV6 | NDIS_HASH_TCP_IPV6 | NDIS_HASH_UDP_IPV6) + +/* Read PPI in two different layouts based on cqe_type */ +union mana_rxcomp_perpkt_info { + struct { + u32 pkt_len : 16; + u32 reserved1 : 16; + u32 reserved2; + u32 pkt_hash; + }; -struct mana_rxcomp_perpkt_info { - u32 pkt_len : 16; - u32 reserved1 : 16; - u32 reserved2; - u32 pkt_hash; + /* Up to two pkts per PPI entry */ + struct { + u32 pkt_hash0; + u16 pkt_len0; + u16 pkt_len1; + u32 pkt_hash1; + }; }; /* HW DATA */ -#define MANA_RXCOMP_OOB_NUM_PPI 4 - /* Receive completion OOB */ struct mana_rxcomp_oob { struct mana_cqe_header cqe_hdr; @@ -247,7 +288,7 @@ struct mana_rxcomp_oob { u32 rx_udp_csum_fail : 1; u32 reserved2 : 1; - struct mana_rxcomp_perpkt_info ppi[MANA_RXCOMP_OOB_NUM_PPI]; + union mana_rxcomp_perpkt_info ppi[MANA_RXCOMP_OOB_NUM_PPI]; u32 rx_wqe_offset; }; /* HW DATA */ @@ -294,6 +335,17 @@ struct mana_cq { int work_done; int work_done_since_doorbell; int budget; + + /* DIM - Dynamic Interrupt Moderation */ + struct dim dim; + u16 dim_event_ctr; + + /* Cumulative TX completions fed to DIM. Updated and read only in + * NAPI context (mana_poll_tx_cq() / mana_update_tx_dim()), so they + * measure the hardware completion rate and need no u64_stats_sync. + */ + u64 tx_dim_pkts; + u64 tx_dim_bytes; }; struct mana_recv_buf_oob { @@ -302,6 +354,14 @@ struct mana_recv_buf_oob { void *buf_va; bool from_pool; /* allocated from a page pool */ + /* head page of the page_pool fragment; valid only when + * from_pool && frag_count > 1. + */ + struct page *pp_page; + /* Fragment offset plus rxq->headroom, passed to + * page_pool_dma_sync_for_cpu(). + */ + u32 dma_sync_offset; /* SGL of the buffer going to be sent as part of the work request. */ u32 num_sge; @@ -378,7 +438,6 @@ struct mana_ethtool_stats { u64 tx_cqe_err; u64 tx_cqe_unknown_type; u64 tx_linear_pkt_cnt; - u64 rx_coalesced_err; u64 rx_cqe_unknown_type; }; @@ -478,9 +537,7 @@ struct mana_context { u8 bm_hostmode; struct mana_ethtool_hc_stats hc_stats; - struct mana_eq *eqs; - struct dentry *mana_eqs_debugfs; - + struct workqueue_struct *per_port_queue_reset_wq; /* Workqueue for querying hardware stats */ struct delayed_work gf_stats_work; bool hwc_timeout_occurred; @@ -495,16 +552,23 @@ struct mana_context { struct mana_port_context { struct mana_context *ac; struct net_device *ndev; + struct work_struct queue_reset_work; + + /* Debug knob to log TX timeout but skip recovery reset */ + bool tx_timeout_skip_reset; u8 mac_addr[ETH_ALEN]; + struct mana_eq *eqs; + struct dentry *mana_eqs_debugfs; + enum TRI_STATE rss_state; mana_handle_t default_rxobj; bool tx_shortform_allowed; u16 tx_vp_offset; - struct mana_tx_qp *tx_qp; + struct mana_tx_qp **tx_qp; /* Indirection Table for RX & TX. The values are queue indexes */ u32 *indir_table; @@ -528,6 +592,8 @@ struct mana_port_context { u32 rxbpre_headroom; u32 rxbpre_frag_count; + u32 priv_flags; + struct bpf_prog *bpf_prog; /* Create num_queues EQs, SQs, SQ-CQs, RQs and RQ-CQs, respectively. */ @@ -544,6 +610,12 @@ struct mana_port_context { struct mutex vport_mutex; int vport_use_count; + /* Set by mana_set_channels() under vport_mutex to block RDMA + * from grabbing the vport during the detach/attach window. + * Checked by mana_cfg_vport() when called from the RDMA path. + */ + bool channel_changing; + /* Net shaper handle*/ struct net_shaper_handle handle; @@ -552,26 +624,54 @@ struct mana_port_context { u32 speed; /* Maximum speed supported by the SKU (mbps) */ u32 max_speed; + /* 1 = not queried, 0 = cached success, negative = permanent error. + * Protected by the netdev instance lock. + */ + int link_cfg_error; bool port_is_up; bool port_st_save; /* Saved port state */ + u8 cqe_coalescing_enable; + u8 cqe8_coalescing_enable; + u32 cqe_coalescing_timeout_ns; + + /* Interrupt moderation settings */ + u16 intr_modr_rx_usec; + u16 intr_modr_rx_comp; + u16 intr_modr_tx_usec; + u16 intr_modr_tx_comp; + + bool rx_dim_enabled; + bool tx_dim_enabled; + struct mana_ethtool_stats eth_stats; struct mana_ethtool_phy_stats phy_stats; /* Debugfs */ struct dentry *mana_port_debugfs; + + /* Cached vport/steering config for debugfs */ + u32 vport_max_sq; + u32 vport_max_rq; + u32 steer_rx; + u32 steer_rss; + bool steer_update_tab; + u32 steer_cqe_coalescing; }; netdev_tx_t mana_start_xmit(struct sk_buff *skb, struct net_device *ndev); int mana_config_rss(struct mana_port_context *ac, enum TRI_STATE rx, bool update_hash, bool update_tab); +int mana_disable_vport_rx(struct mana_port_context *apc); int mana_alloc_queues(struct net_device *ndev); int mana_attach(struct net_device *ndev); int mana_detach(struct net_device *ndev, bool from_close); +void mana_dim_change(struct mana_cq *cq, bool enable); + int mana_probe(struct gdma_dev *gd, bool resuming); void mana_remove(struct gdma_dev *gd, bool suspending); @@ -607,6 +707,9 @@ struct mana_obj_spec { u32 queue_size; u32 attached_eq; u32 modr_ctx_id; + u8 req_cq_moderation; + u16 cq_moderation_comp; + u16 cq_moderation_usec; }; enum mana_command_code { @@ -675,6 +778,8 @@ struct mana_query_device_cfg_req { u32 reserved; }; /* HW DATA */ +#define MANA_PF_FLAG_1_CQE_8_COALESCING_SUPPORTED BIT(5) + struct mana_query_device_cfg_resp { struct gdma_resp_hdr hdr; @@ -738,6 +843,15 @@ struct mana_create_wqobj_req { u32 cq_size; u32 cq_moderation_ctx_id; u32 cq_parent_qid; + + /* V2 */ + u8 allow_rqwqe_chain; + + /* V3 */ + u8 req_cq_moderation; + u16 cq_moderation_comp; + u16 cq_moderation_usec; + u8 reserved2[2]; }; /* HW DATA */ struct mana_create_wqobj_resp { @@ -745,6 +859,12 @@ struct mana_create_wqobj_resp { u32 wq_id; u32 cq_id; mana_handle_t wq_obj; + + /* V2 */ + u16 cq_moderation_comp; + u16 cq_moderation_usec; + u8 cq_moderation_enabled; + u8 reserved1[3]; }; /* HW DATA */ /* Destroy WQ Object */ @@ -895,12 +1015,19 @@ struct mana_cfg_rx_steer_req_v2 { mana_handle_t default_rxobj; u8 hashkey[MANA_HASH_KEY_SIZE]; u8 cqe_coalescing_enable; - u8 reserved2[7]; + u8 reserved2[3]; + u16 rss_hash_types; + u8 cqe8_coalescing_enable; /* v5 message */ + u8 reserved3; mana_handle_t indir_tab[] __counted_by(num_indir_entries); }; /* HW DATA */ struct mana_cfg_rx_steer_resp { struct gdma_resp_hdr hdr; + + /* V2 */ + u32 cqe_coalescing_timeout_ns; + u32 reserved1; }; /* HW DATA */ /* Register HW vPort */ @@ -997,6 +1124,7 @@ struct mana_deregister_filter_resp { #define STATISTICS_FLAGS_TX_ERRORS_GDMA_ERROR 0x0000000004000000 #define MANA_MAX_NUM_QUEUES 64 +#define MANA_DEF_NUM_QUEUES 16 #define MANA_SHORT_VPORT_OFFSET_MAX ((1U << 8) - 1) @@ -1020,8 +1148,10 @@ void mana_destroy_wq_obj(struct mana_port_context *apc, u32 wq_type, mana_handle_t wq_obj); int mana_cfg_vport(struct mana_port_context *apc, u32 protection_dom_id, - u32 doorbell_pg_id); + u32 doorbell_pg_id, bool check_channel_changing); void mana_uncfg_vport(struct mana_port_context *apc); +int mana_create_eq(struct mana_port_context *apc); +void mana_destroy_eq(struct mana_port_context *apc); struct net_device *mana_get_primary_netdev(struct mana_context *ac, u32 port_index, |