| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ioana Radulescu | 1286 | 64.88% | 48 | 60.00% |
| Ioana Ciornei | 502 | 25.33% | 22 | 27.50% |
| Yangbo Lu | 120 | 6.05% | 4 | 5.00% |
| Bogdan Purcareata | 58 | 2.93% | 3 | 3.75% |
| Russell King | 12 | 0.61% | 1 | 1.25% |
| Horia Geantă | 2 | 0.10% | 1 | 1.25% |
| Roy Pledge | 2 | 0.10% | 1 | 1.25% |
| Total | 1982 | 80 |
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* Copyright 2014-2016 Freescale Semiconductor Inc. * Copyright 2016-2020 NXP */ #ifndef __DPAA2_ETH_H #define __DPAA2_ETH_H #include <linux/dcbnl.h> #include <linux/netdevice.h> #include <linux/if_vlan.h> #include <linux/fsl/mc.h> #include <linux/net_tstamp.h> #include <net/devlink.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" #include "dpaa2-eth-debugfs.h" #include "dpaa2-mac.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 a large * enough number of jumbo frames in the Rx queues (length of the current * frame is not taken into account when making the taildrop decision) */ #define DPAA2_ETH_FQ_TAILDROP_THRESH (1024 * 1024) /* Maximum burst size value for Tx shaping */ #define DPAA2_ETH_MAX_BURST_SIZE 0xF7FF /* Maximum number of Tx confirmation frames to be processed * in a single NAPI call */ #define DPAA2_ETH_TXCONF_PER_NAPI 256 /* Buffer qouta per channel. We want to keep in check number of ingress frames * in flight: for small sized frames, congestion group taildrop may kick in * first; for large sizes, Rx FQ taildrop threshold will ensure only a * reasonable number of frames will be pending at any given time. * Ingress frame drop due to buffer pool depletion should be a corner case only */ #define DPAA2_ETH_NUM_BUFS 1280 #define DPAA2_ETH_REFILL_THRESH \ (DPAA2_ETH_NUM_BUFS - DPAA2_ETH_BUFS_PER_CMD) /* Congestion group taildrop threshold: number of frames allowed to accumulate * at any moment in a group of Rx queues belonging to the same traffic class. * Choose value such that we don't risk depleting the buffer pool before the * taildrop kicks in */ #define DPAA2_ETH_CG_TAILDROP_THRESH(priv) \ (1024 * dpaa2_eth_queue_count(priv) / dpaa2_eth_tc_count(priv)) /* Congestion group notification threshold: when this many frames accumulate * on the Rx queues belonging to the same TC, the MAC is instructed to send * PFC frames for that TC. * When number of pending frames drops below exit threshold transmission of * PFC frames is stopped. */ #define DPAA2_ETH_CN_THRESH_ENTRY(priv) \ (DPAA2_ETH_CG_TAILDROP_THRESH(priv) / 2) #define DPAA2_ETH_CN_THRESH_EXIT(priv) \ (DPAA2_ETH_CN_THRESH_ENTRY(priv) * 3 / 4) /* 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_RAW_SIZE PAGE_SIZE #define DPAA2_ETH_RX_BUF_TAILROOM \ SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) #define DPAA2_ETH_RX_BUF_SIZE \ (DPAA2_ETH_RX_BUF_RAW_SIZE - DPAA2_ETH_RX_BUF_TAILROOM) /* 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 /* We store different information in the software annotation area of a Tx frame * based on what type of frame it is */ enum dpaa2_eth_swa_type { DPAA2_ETH_SWA_SINGLE, DPAA2_ETH_SWA_SG, DPAA2_ETH_SWA_XDP, }; /* Must keep this struct smaller than DPAA2_ETH_SWA_SIZE */ struct dpaa2_eth_swa { enum dpaa2_eth_swa_type type; union { struct { struct sk_buff *skb; int sgt_size; } single; struct { struct sk_buff *skb; struct scatterlist *scl; int num_sg; int sgt_size; } sg; struct { int dma_size; struct xdp_frame *xdpf; } xdp; }; }; /* 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 parse results */ struct dpaa2_fapr { /* 64-bit word 1 */ __le32 faf_lo; __le16 faf_ext; __le16 nxt_hdr; /* 64-bit word 2 */ __le64 faf_hi; /* 64-bit word 3 */ u8 last_ethertype_offset; u8 vlan_tci_offset_n; u8 vlan_tci_offset_1; u8 llc_snap_offset; u8 eth_offset; u8 ip1_pid_offset; u8 shim_offset_2; u8 shim_offset_1; /* 64-bit word 4 */ u8 l5_offset; u8 l4_offset; u8 gre_offset; u8 l3_offset_n; u8 l3_offset_1; u8 mpls_offset_n; u8 mpls_offset_1; u8 pppoe_offset; /* 64-bit word 5 */ __le16 running_sum; __le16 gross_running_sum; u8 ipv6_frag_offset; u8 nxt_hdr_offset; u8 routing_hdr_offset_2; u8 routing_hdr_offset_1; /* 64-bit word 6 */ u8 reserved[5]; /* Soft-parsing context */ u8 ip_proto_offset_n; u8 nxt_hdr_frag_offset; u8 parse_error_code; }; #define DPAA2_FAPR_OFFSET 0x10 #define DPAA2_FAPR_SIZE sizeof((struct dpaa2_fapr)) /* 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 struct ptp_tstamp { u16 sec_msb; u32 sec_lsb; u32 nsec; }; static inline void ns_to_ptp_tstamp(struct ptp_tstamp *tstamp, u64 ns) { u64 sec, nsec; sec = ns; nsec = do_div(sec, 1000000000); tstamp->sec_lsb = sec & 0xFFFFFFFF; tstamp->sec_msb = (sec >> 32) & 0xFFFF; tstamp->nsec = nsec; } /* 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_fapr *dpaa2_get_fapr(void *buf_addr, bool swa) { return dpaa2_get_hwa(buf_addr, swa) + DPAA2_FAPR_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 /* Number of times to retry DPIO portal operations while waiting * for portal to finish executing current command and become * available. We want to avoid being stuck in a while loop in case * hardware becomes unresponsive, but not give up too easily if * the portal really is busy for valid reasons */ #define DPAA2_ETH_SWP_BUSY_RETRIES 1000 /* 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 rx_sg_frames; __u64 rx_sg_bytes; /* Linear skbs sent as a S/G FD due to insufficient headroom */ __u64 tx_converted_sg_frames; __u64 tx_converted_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; __u64 xdp_redirect; /* Must be last, does not show up in ethtool stats */ __u64 frames; }; /* Maximum number of queues associated with a DPNI */ #define DPAA2_ETH_MAX_TCS 8 #define DPAA2_ETH_MAX_RX_QUEUES_PER_TC 16 #define DPAA2_ETH_MAX_RX_QUEUES \ (DPAA2_ETH_MAX_RX_QUEUES_PER_TC * DPAA2_ETH_MAX_TCS) #define DPAA2_ETH_MAX_TX_QUEUES 16 #define DPAA2_ETH_MAX_RX_ERR_QUEUES 1 #define DPAA2_ETH_MAX_QUEUES (DPAA2_ETH_MAX_RX_QUEUES + \ DPAA2_ETH_MAX_TX_QUEUES + \ DPAA2_ETH_MAX_RX_ERR_QUEUES) #define DPAA2_ETH_MAX_NETDEV_QUEUES \ (DPAA2_ETH_MAX_TX_QUEUES * DPAA2_ETH_MAX_TCS) #define DPAA2_ETH_MAX_DPCONS 16 enum dpaa2_eth_fq_type { DPAA2_RX_FQ = 0, DPAA2_TX_CONF_FQ, DPAA2_RX_ERR_FQ }; struct dpaa2_eth_priv; struct dpaa2_eth_xdp_fds { struct dpaa2_fd fds[DEV_MAP_BULK_SIZE]; ssize_t num; }; struct dpaa2_eth_fq { u32 fqid; u32 tx_qdbin; u32 tx_fqid[DPAA2_ETH_MAX_TCS]; u16 flowid; u8 tc; 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_xdp_fds xdp_redirect_fds; struct dpaa2_eth_xdp_fds xdp_tx_fds; }; struct dpaa2_eth_ch_xdp { struct bpf_prog *prog; unsigned int res; }; 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 xdp_rxq_info xdp_rxq; struct list_head *rx_list; /* Buffers to be recycled back in the buffer pool */ u64 recycled_bufs[DPAA2_ETH_BUFS_PER_CMD]; int recycled_bufs_cnt; }; struct dpaa2_eth_dist_fields { u64 rxnfc_field; enum net_prot cls_prot; int cls_field; int size; u64 id; }; struct dpaa2_eth_cls_rule { struct ethtool_rx_flow_spec fs; u8 in_use; }; #define DPAA2_ETH_SGT_CACHE_SIZE 256 struct dpaa2_eth_sgt_cache { void *buf[DPAA2_ETH_SGT_CACHE_SIZE]; u16 count; }; struct dpaa2_eth_trap_item { void *trap_ctx; }; struct dpaa2_eth_trap_data { struct dpaa2_eth_trap_item *trap_items_arr; struct dpaa2_eth_priv *priv; }; #define DPAA2_ETH_DEFAULT_COPYBREAK 512 /* Driver private data */ struct dpaa2_eth_priv { struct net_device *net_dev; u8 num_fqs; struct dpaa2_eth_fq fq[DPAA2_ETH_MAX_QUEUES]; int (*enqueue)(struct dpaa2_eth_priv *priv, struct dpaa2_eth_fq *fq, struct dpaa2_fd *fd, u8 prio, u32 num_frames, int *frames_enqueued); u8 num_channels; struct dpaa2_eth_channel *channel[DPAA2_ETH_MAX_DPCONS]; struct dpaa2_eth_sgt_cache __percpu *sgt_cache; struct dpni_attr dpni_attrs; u16 dpni_ver_major; u16 dpni_ver_minor; u16 tx_data_offset; struct fsl_mc_device *dpbp_dev; u16 rx_buf_size; u16 bpid; struct iommu_domain *iommu_domain; enum hwtstamp_tx_types tx_tstamp_type; /* Tx timestamping type */ bool rx_tstamp; /* Rx timestamping enabled */ u16 tx_qdid; 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; u8 rx_fqtd_enabled; u8 rx_cgtd_enabled; struct dpni_link_state link_state; bool do_link_poll; struct task_struct *poll_thread; /* enabled ethtool hashing bits */ u64 rx_hash_fields; u64 rx_cls_fields; struct dpaa2_eth_cls_rule *cls_rules; u8 rx_cls_enabled; u8 vlan_cls_enabled; u8 pfc_enabled; #ifdef CONFIG_FSL_DPAA2_ETH_DCB u8 dcbx_mode; struct ieee_pfc pfc; #endif struct bpf_prog *xdp_prog; #ifdef CONFIG_DEBUG_FS struct dpaa2_debugfs dbg; #endif struct dpaa2_mac *mac; struct workqueue_struct *dpaa2_ptp_wq; struct work_struct tx_onestep_tstamp; struct sk_buff_head tx_skbs; /* The one-step timestamping configuration on hardware * registers could only be done when no one-step * timestamping frames are in flight. So we use a mutex * lock here to make sure the lock is released by last * one-step timestamping packet through TX confirmation * queue before transmit current packet. */ struct mutex onestep_tstamp_lock; struct devlink *devlink; struct dpaa2_eth_trap_data *trap_data; struct devlink_port devlink_port; u32 rx_copybreak; }; struct dpaa2_eth_devlink_priv { struct dpaa2_eth_priv *dpaa2_priv; }; #define TX_TSTAMP 0x1 #define TX_TSTAMP_ONESTEP_SYNC 0x2 #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; extern struct ptp_qoriq *dpaa2_ptp; 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_enabled(priv) \ (!((priv)->dpni_attrs.options & DPNI_OPT_NO_FS)) #define dpaa2_eth_fs_mask_enabled(priv) \ ((priv)->dpni_attrs.options & DPNI_OPT_HAS_KEY_MASKING) #define dpaa2_eth_fs_count(priv) \ ((priv)->dpni_attrs.fs_entries) #define dpaa2_eth_tc_count(priv) \ ((priv)->dpni_attrs.num_tcs) /* We have exactly one {Rx, Tx conf} queue per channel */ #define dpaa2_eth_queue_count(priv) \ ((priv)->num_channels) enum dpaa2_eth_rx_dist { DPAA2_ETH_RX_DIST_HASH, DPAA2_ETH_RX_DIST_CLS }; /* Unique IDs for the supported Rx classification header fields */ #define DPAA2_ETH_DIST_ETHDST BIT(0) #define DPAA2_ETH_DIST_ETHSRC BIT(1) #define DPAA2_ETH_DIST_ETHTYPE BIT(2) #define DPAA2_ETH_DIST_VLAN BIT(3) #define DPAA2_ETH_DIST_IPSRC BIT(4) #define DPAA2_ETH_DIST_IPDST BIT(5) #define DPAA2_ETH_DIST_IPPROTO BIT(6) #define DPAA2_ETH_DIST_L4SRC BIT(7) #define DPAA2_ETH_DIST_L4DST BIT(8) #define DPAA2_ETH_DIST_ALL (~0ULL) #define DPNI_PAUSE_VER_MAJOR 7 #define DPNI_PAUSE_VER_MINOR 13 #define dpaa2_eth_has_pause_support(priv) \ (dpaa2_eth_cmp_dpni_ver((priv), DPNI_PAUSE_VER_MAJOR, \ DPNI_PAUSE_VER_MINOR) >= 0) static inline bool dpaa2_eth_tx_pause_enabled(u64 link_options) { return !!(link_options & DPNI_LINK_OPT_PAUSE) ^ !!(link_options & DPNI_LINK_OPT_ASYM_PAUSE); } static inline bool dpaa2_eth_rx_pause_enabled(u64 link_options) { return !!(link_options & DPNI_LINK_OPT_PAUSE); } static inline unsigned int dpaa2_eth_needed_headroom(struct sk_buff *skb) { unsigned int headroom = DPAA2_ETH_SWA_SIZE; /* If we don't have an skb (e.g. XDP buffer), we only need space for * the software annotation area */ if (!skb) return headroom; /* 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 (skb->cb[0]) 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_RX_HWA_SIZE; } static inline bool dpaa2_eth_is_type_phy(struct dpaa2_eth_priv *priv) { if (priv->mac && (priv->mac->attr.link_type == DPMAC_LINK_TYPE_PHY || priv->mac->attr.link_type == DPMAC_LINK_TYPE_BACKPLANE)) return true; return false; } static inline bool dpaa2_eth_has_mac(struct dpaa2_eth_priv *priv) { return priv->mac ? true : false; } int dpaa2_eth_set_hash(struct net_device *net_dev, u64 flags); int dpaa2_eth_set_cls(struct net_device *net_dev, u64 key); int dpaa2_eth_cls_key_size(u64 key); int dpaa2_eth_cls_fld_off(int prot, int field); void dpaa2_eth_cls_trim_rule(void *key_mem, u64 fields); void dpaa2_eth_set_rx_taildrop(struct dpaa2_eth_priv *priv, bool tx_pause, bool pfc); extern const struct dcbnl_rtnl_ops dpaa2_eth_dcbnl_ops; int dpaa2_eth_dl_register(struct dpaa2_eth_priv *priv); void dpaa2_eth_dl_unregister(struct dpaa2_eth_priv *priv); int dpaa2_eth_dl_port_add(struct dpaa2_eth_priv *priv); void dpaa2_eth_dl_port_del(struct dpaa2_eth_priv *priv); int dpaa2_eth_dl_traps_register(struct dpaa2_eth_priv *priv); void dpaa2_eth_dl_traps_unregister(struct dpaa2_eth_priv *priv); struct dpaa2_eth_trap_item *dpaa2_eth_dl_get_trap(struct dpaa2_eth_priv *priv, struct dpaa2_fapr *fapr); #endif /* __DPAA2_H */
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