| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ioana Radulescu | 1028 | 91.46% | 32 | 82.05% |
| Bogdan Purcareata | 87 | 7.74% | 3 | 7.69% |
| Yangbo Lu | 3 | 0.27% | 1 | 2.56% |
| Roy Pledge | 2 | 0.18% | 1 | 2.56% |
| Horia Geantă | 2 | 0.18% | 1 | 2.56% |
| Ioana Ciornei | 2 | 0.18% | 1 | 2.56% |
| Total | 1124 | 39 |
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* Copyright 2014-2016 Freescale Semiconductor Inc. * Copyright 2016 NXP */ #ifndef __DPAA2_ETH_H #define __DPAA2_ETH_H #include <linux/netdevice.h> #include <linux/if_vlan.h> #include <linux/fsl/mc.h> #include <soc/fsl/dpaa2-io.h> #include <soc/fsl/dpaa2-fd.h> #include "dpni.h" #include "dpni-cmd.h" #include "dpaa2-eth-trace.h" #define DPAA2_WRIOP_VERSION(x, y, z) ((x) << 10 | (y) << 5 | (z) << 0) #define DPAA2_ETH_STORE_SIZE 16 /* Maximum number of scatter-gather entries in an ingress frame, * considering the maximum receive frame size is 64K */ #define DPAA2_ETH_MAX_SG_ENTRIES ((64 * 1024) / DPAA2_ETH_RX_BUF_SIZE) /* Maximum acceptable MTU value. It is in direct relation with the hardware * enforced Max Frame Length (currently 10k). */ #define DPAA2_ETH_MFL (10 * 1024) #define DPAA2_ETH_MAX_MTU (DPAA2_ETH_MFL - VLAN_ETH_HLEN) /* Convert L3 MTU to L2 MFL */ #define DPAA2_ETH_L2_MAX_FRM(mtu) ((mtu) + VLAN_ETH_HLEN) /* Set the taildrop threshold (in bytes) to allow the enqueue of several jumbo * frames in the Rx queues (length of the current frame is not * taken into account when making the taildrop decision) */ #define DPAA2_ETH_TAILDROP_THRESH (64 * 1024) /* Maximum number of Tx confirmation frames to be processed * in a single NAPI call */ #define DPAA2_ETH_TXCONF_PER_NAPI 256 /* Buffer quota per queue. Must be large enough such that for minimum sized * frames taildrop kicks in before the bpool gets depleted, so we compute * how many 64B frames fit inside the taildrop threshold and add a margin * to accommodate the buffer refill delay. */ #define DPAA2_ETH_MAX_FRAMES_PER_QUEUE (DPAA2_ETH_TAILDROP_THRESH / 64) #define DPAA2_ETH_NUM_BUFS (DPAA2_ETH_MAX_FRAMES_PER_QUEUE + 256) #define DPAA2_ETH_REFILL_THRESH DPAA2_ETH_MAX_FRAMES_PER_QUEUE /* Maximum number of buffers that can be acquired/released through a single * QBMan command */ #define DPAA2_ETH_BUFS_PER_CMD 7 /* Hardware requires alignment for ingress/egress buffer addresses */ #define DPAA2_ETH_TX_BUF_ALIGN 64 #define DPAA2_ETH_RX_BUF_SIZE 2048 #define DPAA2_ETH_SKB_SIZE \ (DPAA2_ETH_RX_BUF_SIZE + SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) /* Hardware annotation area in RX/TX buffers */ #define DPAA2_ETH_RX_HWA_SIZE 64 #define DPAA2_ETH_TX_HWA_SIZE 128 /* PTP nominal frequency 1GHz */ #define DPAA2_PTP_CLK_PERIOD_NS 1 /* Due to a limitation in WRIOP 1.0.0, the RX buffer data must be aligned * to 256B. For newer revisions, the requirement is only for 64B alignment */ #define DPAA2_ETH_RX_BUF_ALIGN_REV1 256 #define DPAA2_ETH_RX_BUF_ALIGN 64 /* We are accommodating a skb backpointer and some S/G info * in the frame's software annotation. The hardware * options are either 0 or 64, so we choose the latter. */ #define DPAA2_ETH_SWA_SIZE 64 /* Must keep this struct smaller than DPAA2_ETH_SWA_SIZE */ struct dpaa2_eth_swa { struct sk_buff *skb; struct scatterlist *scl; int num_sg; int sgt_size; }; /* Annotation valid bits in FD FRC */ #define DPAA2_FD_FRC_FASV 0x8000 #define DPAA2_FD_FRC_FAEADV 0x4000 #define DPAA2_FD_FRC_FAPRV 0x2000 #define DPAA2_FD_FRC_FAIADV 0x1000 #define DPAA2_FD_FRC_FASWOV 0x0800 #define DPAA2_FD_FRC_FAICFDV 0x0400 /* Error bits in FD CTRL */ #define DPAA2_FD_RX_ERR_MASK (FD_CTRL_SBE | FD_CTRL_FAERR) #define DPAA2_FD_TX_ERR_MASK (FD_CTRL_UFD | \ FD_CTRL_SBE | \ FD_CTRL_FSE | \ FD_CTRL_FAERR) /* Annotation bits in FD CTRL */ #define DPAA2_FD_CTRL_ASAL 0x00020000 /* ASAL = 128B */ /* Frame annotation status */ struct dpaa2_fas { u8 reserved; u8 ppid; __le16 ifpid; __le32 status; }; /* Frame annotation status word is located in the first 8 bytes * of the buffer's hardware annoatation area */ #define DPAA2_FAS_OFFSET 0 #define DPAA2_FAS_SIZE (sizeof(struct dpaa2_fas)) /* Timestamp is located in the next 8 bytes of the buffer's * hardware annotation area */ #define DPAA2_TS_OFFSET 0x8 /* Frame annotation egress action descriptor */ #define DPAA2_FAEAD_OFFSET 0x58 struct dpaa2_faead { __le32 conf_fqid; __le32 ctrl; }; #define DPAA2_FAEAD_A2V 0x20000000 #define DPAA2_FAEAD_A4V 0x08000000 #define DPAA2_FAEAD_UPDV 0x00001000 #define DPAA2_FAEAD_EBDDV 0x00002000 #define DPAA2_FAEAD_UPD 0x00000010 /* Accessors for the hardware annotation fields that we use */ static inline void *dpaa2_get_hwa(void *buf_addr, bool swa) { return buf_addr + (swa ? DPAA2_ETH_SWA_SIZE : 0); } static inline struct dpaa2_fas *dpaa2_get_fas(void *buf_addr, bool swa) { return dpaa2_get_hwa(buf_addr, swa) + DPAA2_FAS_OFFSET; } static inline __le64 *dpaa2_get_ts(void *buf_addr, bool swa) { return dpaa2_get_hwa(buf_addr, swa) + DPAA2_TS_OFFSET; } static inline struct dpaa2_faead *dpaa2_get_faead(void *buf_addr, bool swa) { return dpaa2_get_hwa(buf_addr, swa) + DPAA2_FAEAD_OFFSET; } /* Error and status bits in the frame annotation status word */ /* Debug frame, otherwise supposed to be discarded */ #define DPAA2_FAS_DISC 0x80000000 /* MACSEC frame */ #define DPAA2_FAS_MS 0x40000000 #define DPAA2_FAS_PTP 0x08000000 /* Ethernet multicast frame */ #define DPAA2_FAS_MC 0x04000000 /* Ethernet broadcast frame */ #define DPAA2_FAS_BC 0x02000000 #define DPAA2_FAS_KSE 0x00040000 #define DPAA2_FAS_EOFHE 0x00020000 #define DPAA2_FAS_MNLE 0x00010000 #define DPAA2_FAS_TIDE 0x00008000 #define DPAA2_FAS_PIEE 0x00004000 /* Frame length error */ #define DPAA2_FAS_FLE 0x00002000 /* Frame physical error */ #define DPAA2_FAS_FPE 0x00001000 #define DPAA2_FAS_PTE 0x00000080 #define DPAA2_FAS_ISP 0x00000040 #define DPAA2_FAS_PHE 0x00000020 #define DPAA2_FAS_BLE 0x00000010 /* L3 csum validation performed */ #define DPAA2_FAS_L3CV 0x00000008 /* L3 csum error */ #define DPAA2_FAS_L3CE 0x00000004 /* L4 csum validation performed */ #define DPAA2_FAS_L4CV 0x00000002 /* L4 csum error */ #define DPAA2_FAS_L4CE 0x00000001 /* Possible errors on the ingress path */ #define DPAA2_FAS_RX_ERR_MASK (DPAA2_FAS_KSE | \ DPAA2_FAS_EOFHE | \ DPAA2_FAS_MNLE | \ DPAA2_FAS_TIDE | \ DPAA2_FAS_PIEE | \ DPAA2_FAS_FLE | \ DPAA2_FAS_FPE | \ DPAA2_FAS_PTE | \ DPAA2_FAS_ISP | \ DPAA2_FAS_PHE | \ DPAA2_FAS_BLE | \ DPAA2_FAS_L3CE | \ DPAA2_FAS_L4CE) /* Time in milliseconds between link state updates */ #define DPAA2_ETH_LINK_STATE_REFRESH 1000 /* Number of times to retry a frame enqueue before giving up. * Value determined empirically, in order to minimize the number * of frames dropped on Tx */ #define DPAA2_ETH_ENQUEUE_RETRIES 10 /* Driver statistics, other than those in struct rtnl_link_stats64. * These are usually collected per-CPU and aggregated by ethtool. */ struct dpaa2_eth_drv_stats { __u64 tx_conf_frames; __u64 tx_conf_bytes; __u64 tx_sg_frames; __u64 tx_sg_bytes; __u64 tx_reallocs; __u64 rx_sg_frames; __u64 rx_sg_bytes; /* Enqueues retried due to portal busy */ __u64 tx_portal_busy; }; /* Per-FQ statistics */ struct dpaa2_eth_fq_stats { /* Number of frames received on this queue */ __u64 frames; }; /* Per-channel statistics */ struct dpaa2_eth_ch_stats { /* Volatile dequeues retried due to portal busy */ __u64 dequeue_portal_busy; /* Pull errors */ __u64 pull_err; /* Number of CDANs; useful to estimate avg NAPI len */ __u64 cdan; /* XDP counters */ __u64 xdp_drop; __u64 xdp_tx; __u64 xdp_tx_err; }; /* Maximum number of queues associated with a DPNI */ #define DPAA2_ETH_MAX_RX_QUEUES 16 #define DPAA2_ETH_MAX_TX_QUEUES 16 #define DPAA2_ETH_MAX_QUEUES (DPAA2_ETH_MAX_RX_QUEUES + \ DPAA2_ETH_MAX_TX_QUEUES) #define DPAA2_ETH_MAX_DPCONS 16 enum dpaa2_eth_fq_type { DPAA2_RX_FQ = 0, DPAA2_TX_CONF_FQ, }; struct dpaa2_eth_priv; struct dpaa2_eth_fq { u32 fqid; u32 tx_qdbin; u16 flowid; int target_cpu; u32 dq_frames; u32 dq_bytes; struct dpaa2_eth_channel *channel; enum dpaa2_eth_fq_type type; void (*consume)(struct dpaa2_eth_priv *priv, struct dpaa2_eth_channel *ch, const struct dpaa2_fd *fd, struct dpaa2_eth_fq *fq); struct dpaa2_eth_fq_stats stats; }; struct dpaa2_eth_ch_xdp { struct bpf_prog *prog; u64 drop_bufs[DPAA2_ETH_BUFS_PER_CMD]; int drop_cnt; }; struct dpaa2_eth_channel { struct dpaa2_io_notification_ctx nctx; struct fsl_mc_device *dpcon; int dpcon_id; int ch_id; struct napi_struct napi; struct dpaa2_io *dpio; struct dpaa2_io_store *store; struct dpaa2_eth_priv *priv; int buf_count; struct dpaa2_eth_ch_stats stats; struct dpaa2_eth_ch_xdp xdp; }; struct dpaa2_eth_dist_fields { u64 rxnfc_field; enum net_prot cls_prot; int cls_field; int size; }; struct dpaa2_eth_cls_rule { struct ethtool_rx_flow_spec fs; u8 in_use; }; /* Driver private data */ struct dpaa2_eth_priv { struct net_device *net_dev; u8 num_fqs; struct dpaa2_eth_fq fq[DPAA2_ETH_MAX_QUEUES]; u8 num_channels; struct dpaa2_eth_channel *channel[DPAA2_ETH_MAX_DPCONS]; struct dpni_attr dpni_attrs; u16 dpni_ver_major; u16 dpni_ver_minor; u16 tx_data_offset; struct fsl_mc_device *dpbp_dev; u16 bpid; struct iommu_domain *iommu_domain; bool tx_tstamp; /* Tx timestamping enabled */ bool rx_tstamp; /* Rx timestamping enabled */ u16 tx_qdid; u16 rx_buf_align; struct fsl_mc_io *mc_io; /* Cores which have an affine DPIO/DPCON. * This is the cpu set on which Rx and Tx conf frames are processed */ struct cpumask dpio_cpumask; /* Standard statistics */ struct rtnl_link_stats64 __percpu *percpu_stats; /* Extra stats, in addition to the ones known by the kernel */ struct dpaa2_eth_drv_stats __percpu *percpu_extras; u16 mc_token; struct dpni_link_state link_state; bool do_link_poll; struct task_struct *poll_thread; /* enabled ethtool hashing bits */ u64 rx_hash_fields; struct dpaa2_eth_cls_rule *cls_rules; u8 rx_cls_enabled; struct bpf_prog *xdp_prog; }; #define DPAA2_RXH_SUPPORTED (RXH_L2DA | RXH_VLAN | RXH_L3_PROTO \ | RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 \ | RXH_L4_B_2_3) /* default Rx hash options, set during probing */ #define DPAA2_RXH_DEFAULT (RXH_L3_PROTO | RXH_IP_SRC | RXH_IP_DST | \ RXH_L4_B_0_1 | RXH_L4_B_2_3) #define dpaa2_eth_hash_enabled(priv) \ ((priv)->dpni_attrs.num_queues > 1) /* Required by struct dpni_rx_tc_dist_cfg::key_cfg_iova */ #define DPAA2_CLASSIFIER_DMA_SIZE 256 extern const struct ethtool_ops dpaa2_ethtool_ops; extern int dpaa2_phc_index; static inline int dpaa2_eth_cmp_dpni_ver(struct dpaa2_eth_priv *priv, u16 ver_major, u16 ver_minor) { if (priv->dpni_ver_major == ver_major) return priv->dpni_ver_minor - ver_minor; return priv->dpni_ver_major - ver_major; } /* Minimum firmware version that supports a more flexible API * for configuring the Rx flow hash key */ #define DPNI_RX_DIST_KEY_VER_MAJOR 7 #define DPNI_RX_DIST_KEY_VER_MINOR 5 #define dpaa2_eth_has_legacy_dist(priv) \ (dpaa2_eth_cmp_dpni_ver((priv), DPNI_RX_DIST_KEY_VER_MAJOR, \ DPNI_RX_DIST_KEY_VER_MINOR) < 0) #define dpaa2_eth_fs_count(priv) \ ((priv)->dpni_attrs.fs_entries) enum dpaa2_eth_rx_dist { DPAA2_ETH_RX_DIST_HASH, DPAA2_ETH_RX_DIST_CLS }; /* Hardware only sees DPAA2_ETH_RX_BUF_SIZE, but the skb built around * the buffer also needs space for its shared info struct, and we need * to allocate enough to accommodate hardware alignment restrictions */ static inline unsigned int dpaa2_eth_buf_raw_size(struct dpaa2_eth_priv *priv) { return DPAA2_ETH_SKB_SIZE + priv->rx_buf_align; } static inline unsigned int dpaa2_eth_needed_headroom(struct dpaa2_eth_priv *priv, struct sk_buff *skb) { unsigned int headroom = DPAA2_ETH_SWA_SIZE; /* For non-linear skbs we have no headroom requirement, as we build a * SG frame with a newly allocated SGT buffer */ if (skb_is_nonlinear(skb)) return 0; /* If we have Tx timestamping, need 128B hardware annotation */ if (priv->tx_tstamp && skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) headroom += DPAA2_ETH_TX_HWA_SIZE; return headroom; } /* Extra headroom space requested to hardware, in order to make sure there's * no realloc'ing in forwarding scenarios */ static inline unsigned int dpaa2_eth_rx_head_room(struct dpaa2_eth_priv *priv) { return priv->tx_data_offset + DPAA2_ETH_TX_BUF_ALIGN - DPAA2_ETH_RX_HWA_SIZE; } /* We have exactly one {Rx, Tx conf} queue per channel */ static int dpaa2_eth_queue_count(struct dpaa2_eth_priv *priv) { return priv->num_channels; } int dpaa2_eth_set_hash(struct net_device *net_dev, u64 flags); int dpaa2_eth_cls_key_size(void); int dpaa2_eth_cls_fld_off(int prot, int field); #endif /* __DPAA2_H */
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