diff options
Diffstat (limited to 'drivers/net/ethernet/intel/idpf/idpf_txrx.h')
| -rw-r--r-- | drivers/net/ethernet/intel/idpf/idpf_txrx.h | 210 |
1 files changed, 148 insertions, 62 deletions
diff --git a/drivers/net/ethernet/intel/idpf/idpf_txrx.h b/drivers/net/ethernet/intel/idpf/idpf_txrx.h index 52753dff381c..75b977094741 100644 --- a/drivers/net/ethernet/intel/idpf/idpf_txrx.h +++ b/drivers/net/ethernet/intel/idpf/idpf_txrx.h @@ -7,8 +7,10 @@ #include <linux/dim.h> #include <net/libeth/cache.h> -#include <net/tcp.h> +#include <net/libeth/types.h> #include <net/netdev_queues.h> +#include <net/tcp.h> +#include <net/xdp.h> #include "idpf_lan_txrx.h" #include "virtchnl2_lan_desc.h" @@ -58,6 +60,8 @@ #define IDPF_MBX_Q_VEC 1 #define IDPF_MIN_Q_VEC 1 #define IDPF_MIN_RDMA_VEC 2 +/* Data vector for NOIRQ queues */ +#define IDPF_RESERVED_VECS 1 #define IDPF_DFLT_TX_Q_DESC_COUNT 512 #define IDPF_DFLT_TX_COMPLQ_DESC_COUNT 512 @@ -137,6 +141,8 @@ do { \ #define IDPF_TX_FLAGS_TUNNEL BIT(3) #define IDPF_TX_FLAGS_TSYN BIT(4) +struct libeth_rq_napi_stats; + union idpf_tx_flex_desc { struct idpf_flex_tx_desc q; /* queue based scheduling */ struct idpf_flex_tx_sched_desc flow; /* flow based scheduling */ @@ -275,11 +281,13 @@ struct idpf_ptype_state { * bit and Q_RFL_GEN is the SW bit. * @__IDPF_Q_FLOW_SCH_EN: Enable flow scheduling * @__IDPF_Q_SW_MARKER: Used to indicate TX queue marker completions - * @__IDPF_Q_POLL_MODE: Enable poll mode * @__IDPF_Q_CRC_EN: enable CRC offload in singleq mode * @__IDPF_Q_HSPLIT_EN: enable header split on Rx (splitq) * @__IDPF_Q_PTP: indicates whether the Rx timestamping is enabled for the * queue + * @__IDPF_Q_NOIRQ: queue is polling-driven and has no interrupt + * @__IDPF_Q_XDP: this is an XDP queue + * @__IDPF_Q_XSK: the queue has an XSk pool installed * @__IDPF_Q_FLAGS_NBITS: Must be last */ enum idpf_queue_flags_t { @@ -287,10 +295,12 @@ enum idpf_queue_flags_t { __IDPF_Q_RFL_GEN_CHK, __IDPF_Q_FLOW_SCH_EN, __IDPF_Q_SW_MARKER, - __IDPF_Q_POLL_MODE, __IDPF_Q_CRC_EN, __IDPF_Q_HSPLIT_EN, __IDPF_Q_PTP, + __IDPF_Q_NOIRQ, + __IDPF_Q_XDP, + __IDPF_Q_XSK, __IDPF_Q_FLAGS_NBITS, }; @@ -357,14 +367,17 @@ struct idpf_intr_reg { * @num_txq: Number of TX queues * @num_bufq: Number of buffer queues * @num_complq: number of completion queues + * @num_xsksq: number of XSk send queues * @rx: Array of RX queues to service * @tx: Array of TX queues to service * @bufq: Array of buffer queues to service * @complq: array of completion queues + * @xsksq: array of XSk send queues * @intr_reg: See struct idpf_intr_reg - * @napi: napi handler + * @csd: XSk wakeup CSD * @total_events: Number of interrupts processed * @wb_on_itr: whether WB on ITR is enabled + * @napi: napi handler * @tx_dim: Data for TX net_dim algorithm * @tx_itr_value: TX interrupt throttling rate * @tx_intr_mode: Dynamic ITR or not @@ -383,19 +396,24 @@ struct idpf_q_vector { u16 num_txq; u16 num_bufq; u16 num_complq; + u16 num_xsksq; struct idpf_rx_queue **rx; struct idpf_tx_queue **tx; struct idpf_buf_queue **bufq; struct idpf_compl_queue **complq; + struct idpf_tx_queue **xsksq; struct idpf_intr_reg intr_reg; __cacheline_group_end_aligned(read_mostly); __cacheline_group_begin_aligned(read_write); - struct napi_struct napi; + call_single_data_t csd; + u16 total_events; bool wb_on_itr; + struct napi_struct napi; + struct dim tx_dim; u16 tx_itr_value; bool tx_intr_mode; @@ -412,8 +430,8 @@ struct idpf_q_vector { __cacheline_group_end_aligned(cold); }; -libeth_cacheline_set_assert(struct idpf_q_vector, 120, - 24 + sizeof(struct napi_struct) + +libeth_cacheline_set_assert(struct idpf_q_vector, 136, + 56 + sizeof(struct napi_struct) + 2 * sizeof(struct dim), 8); @@ -461,21 +479,26 @@ struct idpf_tx_queue_stats { * @desc_ring: virtual descriptor ring address * @bufq_sets: Pointer to the array of buffer queues in splitq mode * @napi: NAPI instance corresponding to this queue (splitq) + * @xdp_prog: attached XDP program * @rx_buf: See struct &libeth_fqe * @pp: Page pool pointer in singleq mode - * @netdev: &net_device corresponding to this queue * @tail: Tail offset. Used for both queue models single and split. * @flags: See enum idpf_queue_flags_t * @idx: For RX queue, it is used to index to total RX queue across groups and * used for skb reporting. * @desc_count: Number of descriptors + * @num_xdp_txq: total number of XDP Tx queues + * @xdpsqs: shortcut for XDP Tx queues array * @rxdids: Supported RX descriptor ids + * @truesize: data buffer truesize in singleq * @rx_ptype_lkup: LUT of Rx ptypes + * @xdp_rxq: XDP queue info * @next_to_use: Next descriptor to use * @next_to_clean: Next descriptor to clean * @next_to_alloc: RX buffer to allocate at - * @skb: Pointer to the skb - * @truesize: data buffer truesize in singleq + * @xdp: XDP buffer with the current frame + * @xsk: current XDP buffer in XSk mode + * @pool: XSk pool if installed * @cached_phc_time: Cached PHC time for the Rx queue * @stats_sync: See struct u64_stats_sync * @q_stats: See union idpf_rx_queue_stats @@ -500,30 +523,44 @@ struct idpf_rx_queue { struct { struct idpf_bufq_set *bufq_sets; struct napi_struct *napi; + struct bpf_prog __rcu *xdp_prog; }; struct { struct libeth_fqe *rx_buf; struct page_pool *pp; + void __iomem *tail; }; }; - struct net_device *netdev; - void __iomem *tail; DECLARE_BITMAP(flags, __IDPF_Q_FLAGS_NBITS); u16 idx; u16 desc_count; - u32 rxdids; + u32 num_xdp_txq; + union { + struct idpf_tx_queue **xdpsqs; + struct { + u32 rxdids; + u32 truesize; + }; + }; const struct libeth_rx_pt *rx_ptype_lkup; + + struct xdp_rxq_info xdp_rxq; __cacheline_group_end_aligned(read_mostly); __cacheline_group_begin_aligned(read_write); - u16 next_to_use; - u16 next_to_clean; - u16 next_to_alloc; + u32 next_to_use; + u32 next_to_clean; + u32 next_to_alloc; - struct sk_buff *skb; - u32 truesize; + union { + struct libeth_xdp_buff_stash xdp; + struct { + struct libeth_xdp_buff *xsk; + struct xsk_buff_pool *pool; + }; + }; u64 cached_phc_time; struct u64_stats_sync stats_sync; @@ -543,8 +580,11 @@ struct idpf_rx_queue { u16 rx_max_pkt_size; __cacheline_group_end_aligned(cold); }; -libeth_cacheline_set_assert(struct idpf_rx_queue, 64, - 88 + sizeof(struct u64_stats_sync), +libeth_cacheline_set_assert(struct idpf_rx_queue, + ALIGN(64, __alignof(struct xdp_rxq_info)) + + sizeof(struct xdp_rxq_info), + 96 + offsetof(struct idpf_rx_queue, q_stats) - + offsetofend(struct idpf_rx_queue, cached_phc_time), 32); /** @@ -556,33 +596,16 @@ libeth_cacheline_set_assert(struct idpf_rx_queue, 64, * @desc_ring: virtual descriptor ring address * @tx_buf: See struct idpf_tx_buf * @txq_grp: See struct idpf_txq_group + * @complq: corresponding completion queue in XDP mode * @dev: Device back pointer for DMA mapping + * @pool: corresponding XSk pool if installed * @tail: Tail offset. Used for both queue models single and split * @flags: See enum idpf_queue_flags_t * @idx: For TX queue, it is used as index to map between TX queue group and * hot path TX pointers stored in vport. Used in both singleq/splitq. * @desc_count: Number of descriptors * @tx_min_pkt_len: Min supported packet length - * @compl_tag_gen_s: Completion tag generation bit - * The format of the completion tag will change based on the TXQ - * descriptor ring size so that we can maintain roughly the same level - * of "uniqueness" across all descriptor sizes. For example, if the - * TXQ descriptor ring size is 64 (the minimum size supported), the - * completion tag will be formatted as below: - * 15 6 5 0 - * -------------------------------- - * | GEN=0-1023 |IDX = 0-63| - * -------------------------------- - * - * This gives us 64*1024 = 65536 possible unique values. Similarly, if - * the TXQ descriptor ring size is 8160 (the maximum size supported), - * the completion tag will be formatted as below: - * 15 13 12 0 - * -------------------------------- - * |GEN | IDX = 0-8159 | - * -------------------------------- - * - * This gives us 8*8160 = 65280 possible unique values. + * @thresh: XDP queue cleaning threshold * @netdev: &net_device corresponding to this queue * @next_to_use: Next descriptor to use * @next_to_clean: Next descriptor to clean @@ -599,6 +622,10 @@ libeth_cacheline_set_assert(struct idpf_rx_queue, 64, * @clean_budget: singleq only, queue cleaning budget * @cleaned_pkts: Number of packets cleaned for the above said case * @refillq: Pointer to refill queue + * @pending: number of pending descriptors to send in QB + * @xdp_tx: number of pending &xdp_buff or &xdp_frame buffers + * @timer: timer for XDP Tx queue cleanup + * @xdp_lock: lock for XDP Tx queues sharing * @cached_tstamp_caps: Tx timestamp capabilities negotiated with the CP * @tstamp_task: Work that handles Tx timestamp read * @stats_sync: See struct u64_stats_sync @@ -608,6 +635,7 @@ libeth_cacheline_set_assert(struct idpf_rx_queue, 64, * @dma: Physical address of ring * @q_vector: Backreference to associated vector * @buf_pool_size: Total number of idpf_tx_buf + * @rel_q_id: relative virtchnl queue index */ struct idpf_tx_queue { __cacheline_group_begin_aligned(read_mostly); @@ -620,32 +648,53 @@ struct idpf_tx_queue { void *desc_ring; }; struct libeth_sqe *tx_buf; - struct idpf_txq_group *txq_grp; - struct device *dev; + union { + struct idpf_txq_group *txq_grp; + struct idpf_compl_queue *complq; + }; + union { + struct device *dev; + struct xsk_buff_pool *pool; + }; void __iomem *tail; DECLARE_BITMAP(flags, __IDPF_Q_FLAGS_NBITS); u16 idx; u16 desc_count; - u16 tx_min_pkt_len; + union { + u16 tx_min_pkt_len; + u32 thresh; + }; struct net_device *netdev; __cacheline_group_end_aligned(read_mostly); __cacheline_group_begin_aligned(read_write); - u16 next_to_use; - u16 next_to_clean; - u16 last_re; - u16 tx_max_bufs; + u32 next_to_use; + u32 next_to_clean; union { - u32 cleaned_bytes; - u32 clean_budget; - }; - u16 cleaned_pkts; + struct { + u16 last_re; + u16 tx_max_bufs; + + union { + u32 cleaned_bytes; + u32 clean_budget; + }; + u16 cleaned_pkts; - struct idpf_sw_queue *refillq; + struct idpf_sw_queue *refillq; + }; + struct { + u32 pending; + u32 xdp_tx; + + struct libeth_xdpsq_timer *timer; + struct libeth_xdpsq_lock xdp_lock; + }; + }; struct idpf_ptp_vport_tx_tstamp_caps *cached_tstamp_caps; struct work_struct *tstamp_task; @@ -660,26 +709,36 @@ struct idpf_tx_queue { dma_addr_t dma; struct idpf_q_vector *q_vector; + u32 buf_pool_size; + u32 rel_q_id; __cacheline_group_end_aligned(cold); }; libeth_cacheline_set_assert(struct idpf_tx_queue, 64, - 104 + sizeof(struct u64_stats_sync), + 104 + + offsetof(struct idpf_tx_queue, cached_tstamp_caps) - + offsetofend(struct idpf_tx_queue, timer) + + offsetof(struct idpf_tx_queue, q_stats) - + offsetofend(struct idpf_tx_queue, tstamp_task), 32); /** * struct idpf_buf_queue - software structure representing a buffer queue * @split_buf: buffer descriptor array - * @hdr_buf: &libeth_fqe for header buffers - * @hdr_pp: &page_pool for header buffers * @buf: &libeth_fqe for data buffers * @pp: &page_pool for data buffers + * @xsk_buf: &xdp_buff for XSk Rx buffers + * @pool: &xsk_buff_pool on XSk queues + * @hdr_buf: &libeth_fqe for header buffers + * @hdr_pp: &page_pool for header buffers * @tail: Tail offset * @flags: See enum idpf_queue_flags_t * @desc_count: Number of descriptors + * @thresh: refill threshold in XSk * @next_to_use: Next descriptor to use * @next_to_clean: Next descriptor to clean * @next_to_alloc: RX buffer to allocate at + * @pending: number of buffers to refill (Xsk) * @hdr_truesize: truesize for buffer headers * @truesize: truesize for data buffers * @q_id: Queue id @@ -693,14 +752,24 @@ libeth_cacheline_set_assert(struct idpf_tx_queue, 64, struct idpf_buf_queue { __cacheline_group_begin_aligned(read_mostly); struct virtchnl2_splitq_rx_buf_desc *split_buf; + union { + struct { + struct libeth_fqe *buf; + struct page_pool *pp; + }; + struct { + struct libeth_xdp_buff **xsk_buf; + struct xsk_buff_pool *pool; + }; + }; struct libeth_fqe *hdr_buf; struct page_pool *hdr_pp; - struct libeth_fqe *buf; - struct page_pool *pp; void __iomem *tail; DECLARE_BITMAP(flags, __IDPF_Q_FLAGS_NBITS); u32 desc_count; + + u32 thresh; __cacheline_group_end_aligned(read_mostly); __cacheline_group_begin_aligned(read_write); @@ -708,6 +777,7 @@ struct idpf_buf_queue { u32 next_to_clean; u32 next_to_alloc; + u32 pending; u32 hdr_truesize; u32 truesize; __cacheline_group_end_aligned(read_write); @@ -728,7 +798,9 @@ libeth_cacheline_set_assert(struct idpf_buf_queue, 64, 24, 32); /** * struct idpf_compl_queue - software structure representing a completion queue - * @comp: completion descriptor array + * @comp: 8-byte completion descriptor array + * @comp_4b: 4-byte completion descriptor array + * @desc_ring: virtual descriptor ring address * @txq_grp: See struct idpf_txq_group * @flags: See enum idpf_queue_flags_t * @desc_count: Number of descriptors @@ -748,7 +820,12 @@ libeth_cacheline_set_assert(struct idpf_buf_queue, 64, 24, 32); */ struct idpf_compl_queue { __cacheline_group_begin_aligned(read_mostly); - struct idpf_splitq_tx_compl_desc *comp; + union { + struct idpf_splitq_tx_compl_desc *comp; + struct idpf_splitq_4b_tx_compl_desc *comp_4b; + + void *desc_ring; + }; struct idpf_txq_group *txq_grp; DECLARE_BITMAP(flags, __IDPF_Q_FLAGS_NBITS); @@ -1012,9 +1089,13 @@ int idpf_config_rss(struct idpf_vport *vport); int idpf_init_rss(struct idpf_vport *vport); void idpf_deinit_rss(struct idpf_vport *vport); int idpf_rx_bufs_init_all(struct idpf_vport *vport); -void idpf_rx_add_frag(struct idpf_rx_buf *rx_buf, struct sk_buff *skb, - unsigned int size); -struct sk_buff *idpf_rx_build_skb(const struct libeth_fqe *buf, u32 size); + +struct idpf_q_vector *idpf_find_rxq_vec(const struct idpf_vport *vport, + u32 q_num); +struct idpf_q_vector *idpf_find_txq_vec(const struct idpf_vport *vport, + u32 q_num); +int idpf_qp_switch(struct idpf_vport *vport, u32 qid, bool en); + void idpf_tx_buf_hw_update(struct idpf_tx_queue *tx_q, u32 val, bool xmit_more); unsigned int idpf_size_to_txd_count(unsigned int size); @@ -1027,6 +1108,11 @@ netdev_tx_t idpf_tx_singleq_frame(struct sk_buff *skb, netdev_tx_t idpf_tx_start(struct sk_buff *skb, struct net_device *netdev); bool idpf_rx_singleq_buf_hw_alloc_all(struct idpf_rx_queue *rxq, u16 cleaned_count); +bool idpf_rx_process_skb_fields(struct sk_buff *skb, + const struct libeth_xdp_buff *xdp, + struct libeth_rq_napi_stats *rs); int idpf_tso(struct sk_buff *skb, struct idpf_tx_offload_params *off); +void idpf_wait_for_sw_marker_completion(const struct idpf_tx_queue *txq); + #endif /* !_IDPF_TXRX_H_ */ |