From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 850 +++++++++++++++++++++++++++ 1 file changed, 850 insertions(+) create mode 100644 drivers/net/ethernet/mellanox/mlx4/mlx4_en.h (limited to 'drivers/net/ethernet/mellanox/mlx4/mlx4_en.h') diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h new file mode 100644 index 000000000..544e09b97 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -0,0 +1,850 @@ +/* + * Copyright (c) 2007 Mellanox Technologies. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#ifndef _MLX4_EN_H_ +#define _MLX4_EN_H_ + +#include +#include +#include +#include +#include +#include +#include +#include +#ifdef CONFIG_MLX4_EN_DCB +#include +#endif +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include "en_port.h" +#include "mlx4_stats.h" + +#define DRV_NAME "mlx4_en" +#define DRV_VERSION "4.0-0" + +#define MLX4_EN_MSG_LEVEL (NETIF_MSG_LINK | NETIF_MSG_IFDOWN) + +/* + * Device constants + */ + + +#define MLX4_EN_PAGE_SHIFT 12 +#define MLX4_EN_PAGE_SIZE (1 << MLX4_EN_PAGE_SHIFT) +#define DEF_RX_RINGS 16 +#define MAX_RX_RINGS 128 +#define MIN_RX_RINGS 1 +#define LOG_TXBB_SIZE 6 +#define TXBB_SIZE BIT(LOG_TXBB_SIZE) +#define HEADROOM (2048 / TXBB_SIZE + 1) +#define STAMP_STRIDE 64 +#define STAMP_DWORDS (STAMP_STRIDE / 4) +#define STAMP_SHIFT 31 +#define STAMP_VAL 0x7fffffff +#define STATS_DELAY (HZ / 4) +#define SERVICE_TASK_DELAY (HZ / 4) +#define MAX_NUM_OF_FS_RULES 256 + +#define MLX4_EN_FILTER_HASH_SHIFT 4 +#define MLX4_EN_FILTER_EXPIRY_QUOTA 60 + +#define CTRL_SIZE sizeof(struct mlx4_wqe_ctrl_seg) +#define DS_SIZE sizeof(struct mlx4_wqe_data_seg) + +/* Maximal size of the bounce buffer: + * 256 bytes for LSO headers. + * CTRL_SIZE for control desc. + * DS_SIZE if skb->head contains some payload. + * MAX_SKB_FRAGS frags. + */ +#define MLX4_TX_BOUNCE_BUFFER_SIZE \ + ALIGN(256 + CTRL_SIZE + DS_SIZE + MAX_SKB_FRAGS * DS_SIZE, TXBB_SIZE) + +#define MLX4_MAX_DESC_TXBBS (MLX4_TX_BOUNCE_BUFFER_SIZE / TXBB_SIZE) + +/* + * OS related constants and tunables + */ + +#define MLX4_EN_PRIV_FLAGS_BLUEFLAME 1 +#define MLX4_EN_PRIV_FLAGS_PHV 2 + +#define MLX4_EN_WATCHDOG_TIMEOUT (15 * HZ) + +/* Use the maximum between 16384 and a single page */ +#define MLX4_EN_ALLOC_SIZE PAGE_ALIGN(16384) + +#define MLX4_EN_MAX_RX_FRAGS 4 + +/* Maximum ring sizes */ +#define MLX4_EN_MAX_TX_SIZE 8192 +#define MLX4_EN_MAX_RX_SIZE 8192 + +/* Minimum ring size for our page-allocation scheme to work */ +#define MLX4_EN_MIN_RX_SIZE (MLX4_EN_ALLOC_SIZE / SMP_CACHE_BYTES) +#define MLX4_EN_MIN_TX_SIZE (4096 / TXBB_SIZE) + +#define MLX4_EN_SMALL_PKT_SIZE 64 +#define MLX4_EN_MIN_TX_RING_P_UP 1 +#define MLX4_EN_MAX_TX_RING_P_UP 32 +#define MLX4_EN_NUM_UP_LOW 1 +#define MLX4_EN_NUM_UP_HIGH 8 +#define MLX4_EN_DEF_RX_RING_SIZE 1024 +#define MLX4_EN_DEF_TX_RING_SIZE MLX4_EN_DEF_RX_RING_SIZE +#define MAX_TX_RINGS (MLX4_EN_MAX_TX_RING_P_UP * \ + MLX4_EN_NUM_UP_HIGH) + +#define MLX4_EN_DEFAULT_TX_WORK 256 + +/* Target number of packets to coalesce with interrupt moderation */ +#define MLX4_EN_RX_COAL_TARGET 44 +#define MLX4_EN_RX_COAL_TIME 0x10 + +#define MLX4_EN_TX_COAL_PKTS 16 +#define MLX4_EN_TX_COAL_TIME 0x10 + +#define MLX4_EN_MAX_COAL_PKTS U16_MAX +#define MLX4_EN_MAX_COAL_TIME U16_MAX + +#define MLX4_EN_RX_RATE_LOW 400000 +#define MLX4_EN_RX_COAL_TIME_LOW 0 +#define MLX4_EN_RX_RATE_HIGH 450000 +#define MLX4_EN_RX_COAL_TIME_HIGH 128 +#define MLX4_EN_RX_SIZE_THRESH 1024 +#define MLX4_EN_RX_RATE_THRESH (1000000 / MLX4_EN_RX_COAL_TIME_HIGH) +#define MLX4_EN_SAMPLE_INTERVAL 0 +#define MLX4_EN_AVG_PKT_SMALL 256 + +#define MLX4_EN_AUTO_CONF 0xffff + +#define MLX4_EN_DEF_RX_PAUSE 1 +#define MLX4_EN_DEF_TX_PAUSE 1 + +/* Interval between successive polls in the Tx routine when polling is used + instead of interrupts (in per-core Tx rings) - should be power of 2 */ +#define MLX4_EN_TX_POLL_MODER 16 +#define MLX4_EN_TX_POLL_TIMEOUT (HZ / 4) + +#define SMALL_PACKET_SIZE (256 - NET_IP_ALIGN) +#define HEADER_COPY_SIZE (128 - NET_IP_ALIGN) +#define MLX4_LOOPBACK_TEST_PAYLOAD (HEADER_COPY_SIZE - ETH_HLEN) +#define PREAMBLE_LEN 8 +#define MLX4_SELFTEST_LB_MIN_MTU (MLX4_LOOPBACK_TEST_PAYLOAD + NET_IP_ALIGN + \ + ETH_HLEN + PREAMBLE_LEN) + +/* VLAN_HLEN is added twice,to support skb vlan tagged with multiple + * headers. (For example: ETH_P_8021Q and ETH_P_8021AD). + */ +#define MLX4_EN_EFF_MTU(mtu) ((mtu) + ETH_HLEN + (2 * VLAN_HLEN)) +#define ETH_BCAST 0xffffffffffffULL + +#define MLX4_EN_LOOPBACK_RETRIES 5 +#define MLX4_EN_LOOPBACK_TIMEOUT 100 + +/* Constants for TX flow */ +enum { + MAX_INLINE = 104, /* 128 - 16 - 4 - 4 */ + MAX_BF = 256, + MIN_PKT_LEN = 17, +}; + +/* + * Configurables + */ + +enum cq_type { + /* keep tx types first */ + TX, + TX_XDP, +#define MLX4_EN_NUM_TX_TYPES (TX_XDP + 1) + RX, +}; + + +/* + * Useful macros + */ +#define ROUNDUP_LOG2(x) ilog2(roundup_pow_of_two(x)) +#define XNOR(x, y) (!(x) == !(y)) + + +struct mlx4_en_tx_info { + union { + struct sk_buff *skb; + struct page *page; + }; + dma_addr_t map0_dma; + u32 map0_byte_count; + u32 nr_txbb; + u32 nr_bytes; + u8 linear; + u8 data_offset; + u8 inl; + u8 ts_requested; + u8 nr_maps; +} ____cacheline_aligned_in_smp; + + +#define MLX4_EN_BIT_DESC_OWN 0x80000000 +#define MLX4_EN_MEMTYPE_PAD 0x100 + + +struct mlx4_en_tx_desc { + struct mlx4_wqe_ctrl_seg ctrl; + union { + struct mlx4_wqe_data_seg data; /* at least one data segment */ + struct mlx4_wqe_lso_seg lso; + struct mlx4_wqe_inline_seg inl; + }; +}; + +#define MLX4_EN_USE_SRQ 0x01000000 + +#define MLX4_EN_CX3_LOW_ID 0x1000 +#define MLX4_EN_CX3_HIGH_ID 0x1005 + +struct mlx4_en_rx_alloc { + struct page *page; + dma_addr_t dma; + u32 page_offset; +}; + +#define MLX4_EN_CACHE_SIZE (2 * NAPI_POLL_WEIGHT) + +struct mlx4_en_page_cache { + u32 index; + struct { + struct page *page; + dma_addr_t dma; + } buf[MLX4_EN_CACHE_SIZE]; +}; + +enum { + MLX4_EN_TX_RING_STATE_RECOVERING, +}; + +struct mlx4_en_priv; + +struct mlx4_en_tx_ring { + /* cache line used and dirtied in tx completion + * (mlx4_en_free_tx_buf()) + */ + u32 last_nr_txbb; + u32 cons; + unsigned long wake_queue; + struct netdev_queue *tx_queue; + u32 (*free_tx_desc)(struct mlx4_en_priv *priv, + struct mlx4_en_tx_ring *ring, + int index, + u64 timestamp, int napi_mode); + struct mlx4_en_rx_ring *recycle_ring; + + /* cache line used and dirtied in mlx4_en_xmit() */ + u32 prod ____cacheline_aligned_in_smp; + unsigned int tx_dropped; + unsigned long bytes; + unsigned long packets; + unsigned long tx_csum; + unsigned long tso_packets; + unsigned long xmit_more; + struct mlx4_bf bf; + + /* Following part should be mostly read */ + void __iomem *doorbell_address; + __be32 doorbell_qpn; + __be32 mr_key; + u32 size; /* number of TXBBs */ + u32 size_mask; + u32 full_size; + u32 buf_size; + void *buf; + struct mlx4_en_tx_info *tx_info; + int qpn; + u8 queue_index; + bool bf_enabled; + bool bf_alloced; + u8 hwtstamp_tx_type; + u8 *bounce_buf; + + /* Not used in fast path + * Only queue_stopped might be used if BQL is not properly working. + */ + unsigned long queue_stopped; + unsigned long state; + struct mlx4_hwq_resources sp_wqres; + struct mlx4_qp sp_qp; + struct mlx4_qp_context sp_context; + cpumask_t sp_affinity_mask; + enum mlx4_qp_state sp_qp_state; + u16 sp_stride; + u16 sp_cqn; /* index of port CQ associated with this ring */ +} ____cacheline_aligned_in_smp; + +struct mlx4_en_rx_desc { + /* actual number of entries depends on rx ring stride */ + struct mlx4_wqe_data_seg data[0]; +}; + +struct mlx4_en_rx_ring { + struct mlx4_hwq_resources wqres; + u32 size ; /* number of Rx descs*/ + u32 actual_size; + u32 size_mask; + u16 stride; + u16 log_stride; + u16 cqn; /* index of port CQ associated with this ring */ + u32 prod; + u32 cons; + u32 buf_size; + u8 fcs_del; + void *buf; + void *rx_info; + struct bpf_prog __rcu *xdp_prog; + struct mlx4_en_page_cache page_cache; + unsigned long bytes; + unsigned long packets; + unsigned long csum_ok; + unsigned long csum_none; + unsigned long csum_complete; + unsigned long rx_alloc_pages; + unsigned long xdp_drop; + unsigned long xdp_redirect; + unsigned long xdp_redirect_fail; + unsigned long xdp_tx; + unsigned long xdp_tx_full; + unsigned long dropped; + int hwtstamp_rx_filter; + cpumask_var_t affinity_mask; + struct xdp_rxq_info xdp_rxq; +}; + +struct mlx4_en_cq { + struct mlx4_cq mcq; + struct mlx4_hwq_resources wqres; + int ring; + struct net_device *dev; + union { + struct napi_struct napi; + bool xdp_busy; + }; + int size; + int buf_size; + int vector; + enum cq_type type; + u16 moder_time; + u16 moder_cnt; + struct mlx4_cqe *buf; +#define MLX4_EN_OPCODE_ERROR 0x1e + + const struct cpumask *aff_mask; +}; + +struct mlx4_en_port_profile { + u32 flags; + u32 tx_ring_num[MLX4_EN_NUM_TX_TYPES]; + u32 rx_ring_num; + u32 tx_ring_size; + u32 rx_ring_size; + u8 num_tx_rings_p_up; + u8 rx_pause; + u8 rx_ppp; + u8 tx_pause; + u8 tx_ppp; + u8 num_up; + int rss_rings; + int inline_thold; + struct hwtstamp_config hwtstamp_config; +}; + +struct mlx4_en_profile { + int udp_rss; + u8 rss_mask; + u32 active_ports; + u32 small_pkt_int; + u8 no_reset; + u8 max_num_tx_rings_p_up; + struct mlx4_en_port_profile prof[MLX4_MAX_PORTS + 1]; +}; + +struct mlx4_en_dev { + struct mlx4_dev *dev; + struct pci_dev *pdev; + struct mutex state_lock; + struct net_device *pndev[MLX4_MAX_PORTS + 1]; + struct net_device *upper[MLX4_MAX_PORTS + 1]; + u32 port_cnt; + bool device_up; + struct mlx4_en_profile profile; + u32 LSO_support; + struct workqueue_struct *workqueue; + struct device *dma_device; + void __iomem *uar_map; + struct mlx4_uar priv_uar; + struct mlx4_mr mr; + u32 priv_pdn; + spinlock_t uar_lock; + u8 mac_removed[MLX4_MAX_PORTS + 1]; + u32 nominal_c_mult; + struct cyclecounter cycles; + seqlock_t clock_lock; + struct timecounter clock; + unsigned long last_overflow_check; + struct ptp_clock *ptp_clock; + struct ptp_clock_info ptp_clock_info; + struct notifier_block nb; +}; + + +struct mlx4_en_rss_map { + int base_qpn; + struct mlx4_qp qps[MAX_RX_RINGS]; + enum mlx4_qp_state state[MAX_RX_RINGS]; + struct mlx4_qp *indir_qp; + enum mlx4_qp_state indir_state; +}; + +enum mlx4_en_port_flag { + MLX4_EN_PORT_ANC = 1<<0, /* Auto-negotiation complete */ + MLX4_EN_PORT_ANE = 1<<1, /* Auto-negotiation enabled */ +}; + +struct mlx4_en_port_state { + int link_state; + int link_speed; + int transceiver; + u32 flags; +}; + +enum mlx4_en_mclist_act { + MCLIST_NONE, + MCLIST_REM, + MCLIST_ADD, +}; + +struct mlx4_en_mc_list { + struct list_head list; + enum mlx4_en_mclist_act action; + u8 addr[ETH_ALEN]; + u64 reg_id; + u64 tunnel_reg_id; +}; + +struct mlx4_en_frag_info { + u16 frag_size; + u32 frag_stride; +}; + +#ifdef CONFIG_MLX4_EN_DCB +/* Minimal TC BW - setting to 0 will block traffic */ +#define MLX4_EN_BW_MIN 1 +#define MLX4_EN_BW_MAX 100 /* Utilize 100% of the line */ + +#define MLX4_EN_TC_VENDOR 0 +#define MLX4_EN_TC_ETS 7 + +enum dcb_pfc_type { + pfc_disabled = 0, + pfc_enabled_full, + pfc_enabled_tx, + pfc_enabled_rx +}; + +struct mlx4_en_cee_config { + bool pfc_state; + enum dcb_pfc_type dcb_pfc[MLX4_EN_NUM_UP_HIGH]; +}; +#endif + +struct ethtool_flow_id { + struct list_head list; + struct ethtool_rx_flow_spec flow_spec; + u64 id; +}; + +enum { + MLX4_EN_FLAG_PROMISC = (1 << 0), + MLX4_EN_FLAG_MC_PROMISC = (1 << 1), + /* whether we need to enable hardware loopback by putting dmac + * in Tx WQE + */ + MLX4_EN_FLAG_ENABLE_HW_LOOPBACK = (1 << 2), + /* whether we need to drop packets that hardware loopback-ed */ + MLX4_EN_FLAG_RX_FILTER_NEEDED = (1 << 3), + MLX4_EN_FLAG_FORCE_PROMISC = (1 << 4), + MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP = (1 << 5), +#ifdef CONFIG_MLX4_EN_DCB + MLX4_EN_FLAG_DCB_ENABLED = (1 << 6), +#endif +}; + +#define PORT_BEACON_MAX_LIMIT (65535) +#define MLX4_EN_MAC_HASH_SIZE (1 << BITS_PER_BYTE) +#define MLX4_EN_MAC_HASH_IDX 5 + +struct mlx4_en_stats_bitmap { + DECLARE_BITMAP(bitmap, NUM_ALL_STATS); + struct mutex mutex; /* for mutual access to stats bitmap */ +}; + +enum { + MLX4_EN_STATE_FLAG_RESTARTING, +}; + +struct mlx4_en_priv { + struct mlx4_en_dev *mdev; + struct mlx4_en_port_profile *prof; + struct net_device *dev; + unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; + struct mlx4_en_port_state port_state; + spinlock_t stats_lock; + struct ethtool_flow_id ethtool_rules[MAX_NUM_OF_FS_RULES]; + /* To allow rules removal while port is going down */ + struct list_head ethtool_list; + + unsigned long last_moder_packets[MAX_RX_RINGS]; + unsigned long last_moder_tx_packets; + unsigned long last_moder_bytes[MAX_RX_RINGS]; + unsigned long last_moder_jiffies; + int last_moder_time[MAX_RX_RINGS]; + u16 rx_usecs; + u16 rx_frames; + u16 tx_usecs; + u16 tx_frames; + u32 pkt_rate_low; + u16 rx_usecs_low; + u32 pkt_rate_high; + u16 rx_usecs_high; + u32 sample_interval; + u32 adaptive_rx_coal; + u32 msg_enable; + u32 loopback_ok; + u32 validate_loopback; + + struct mlx4_hwq_resources res; + int link_state; + bool port_up; + int port; + int registered; + int allocated; + int stride; + unsigned char current_mac[ETH_ALEN + 2]; + int mac_index; + unsigned max_mtu; + int base_qpn; + int cqe_factor; + int cqe_size; + + struct mlx4_en_rss_map rss_map; + __be32 ctrl_flags; + u32 flags; + u8 num_tx_rings_p_up; + u32 tx_work_limit; + u32 tx_ring_num[MLX4_EN_NUM_TX_TYPES]; + u32 rx_ring_num; + u32 rx_skb_size; + struct mlx4_en_frag_info frag_info[MLX4_EN_MAX_RX_FRAGS]; + u8 num_frags; + u8 log_rx_info; + u8 dma_dir; + u16 rx_headroom; + + struct mlx4_en_tx_ring **tx_ring[MLX4_EN_NUM_TX_TYPES]; + struct mlx4_en_rx_ring *rx_ring[MAX_RX_RINGS]; + struct mlx4_en_cq **tx_cq[MLX4_EN_NUM_TX_TYPES]; + struct mlx4_en_cq *rx_cq[MAX_RX_RINGS]; + struct mlx4_qp drop_qp; + struct work_struct rx_mode_task; + struct work_struct restart_task; + struct work_struct linkstate_task; + struct delayed_work stats_task; + struct delayed_work service_task; + struct mlx4_en_pkt_stats pkstats; + struct mlx4_en_counter_stats pf_stats; + struct mlx4_en_flow_stats_rx rx_priority_flowstats[MLX4_NUM_PRIORITIES]; + struct mlx4_en_flow_stats_tx tx_priority_flowstats[MLX4_NUM_PRIORITIES]; + struct mlx4_en_flow_stats_rx rx_flowstats; + struct mlx4_en_flow_stats_tx tx_flowstats; + struct mlx4_en_port_stats port_stats; + struct mlx4_en_xdp_stats xdp_stats; + struct mlx4_en_phy_stats phy_stats; + struct mlx4_en_stats_bitmap stats_bitmap; + struct list_head mc_list; + struct list_head curr_list; + u64 broadcast_id; + struct mlx4_en_stat_out_mbox hw_stats; + int vids[128]; + bool wol; + struct device *ddev; + struct hlist_head mac_hash[MLX4_EN_MAC_HASH_SIZE]; + struct hwtstamp_config hwtstamp_config; + u32 counter_index; + +#ifdef CONFIG_MLX4_EN_DCB +#define MLX4_EN_DCB_ENABLED 0x3 + struct ieee_ets ets; + u16 maxrate[IEEE_8021QAZ_MAX_TCS]; + enum dcbnl_cndd_states cndd_state[IEEE_8021QAZ_MAX_TCS]; + struct mlx4_en_cee_config cee_config; + u8 dcbx_cap; +#endif +#ifdef CONFIG_RFS_ACCEL + spinlock_t filters_lock; + int last_filter_id; + struct list_head filters; + struct hlist_head filter_hash[1 << MLX4_EN_FILTER_HASH_SHIFT]; +#endif + u64 tunnel_reg_id; + __be16 vxlan_port; + + u32 pflags; + u8 rss_key[MLX4_EN_RSS_KEY_SIZE]; + u8 rss_hash_fn; + unsigned long state; +}; + +enum mlx4_en_wol { + MLX4_EN_WOL_MAGIC = (1ULL << 61), + MLX4_EN_WOL_ENABLED = (1ULL << 62), +}; + +struct mlx4_mac_entry { + struct hlist_node hlist; + unsigned char mac[ETH_ALEN + 2]; + u64 reg_id; + struct rcu_head rcu; +}; + +static inline struct mlx4_cqe *mlx4_en_get_cqe(void *buf, int idx, int cqe_sz) +{ + return buf + idx * cqe_sz; +} + +#define MLX4_EN_WOL_DO_MODIFY (1ULL << 63) + +void mlx4_en_init_ptys2ethtool_map(void); +void mlx4_en_update_loopback_state(struct net_device *dev, + netdev_features_t features); + +void mlx4_en_destroy_netdev(struct net_device *dev); +int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, + struct mlx4_en_port_profile *prof); + +int mlx4_en_start_port(struct net_device *dev); +void mlx4_en_stop_port(struct net_device *dev, int detach); + +void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev, + struct mlx4_en_stats_bitmap *stats_bitmap, + u8 rx_ppp, u8 rx_pause, + u8 tx_ppp, u8 tx_pause); + +int mlx4_en_try_alloc_resources(struct mlx4_en_priv *priv, + struct mlx4_en_priv *tmp, + struct mlx4_en_port_profile *prof, + bool carry_xdp_prog); +void mlx4_en_safe_replace_resources(struct mlx4_en_priv *priv, + struct mlx4_en_priv *tmp); + +int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq, + int entries, int ring, enum cq_type mode, int node); +void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq); +int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, + int cq_idx); +void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); +int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); +void mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); + +void mlx4_en_tx_irq(struct mlx4_cq *mcq); +u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb, + struct net_device *sb_dev); +netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev); +netdev_tx_t mlx4_en_xmit_frame(struct mlx4_en_rx_ring *rx_ring, + struct mlx4_en_rx_alloc *frame, + struct mlx4_en_priv *priv, unsigned int length, + int tx_ind, bool *doorbell_pending); +void mlx4_en_xmit_doorbell(struct mlx4_en_tx_ring *ring); +bool mlx4_en_rx_recycle(struct mlx4_en_rx_ring *ring, + struct mlx4_en_rx_alloc *frame); + +int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, + struct mlx4_en_tx_ring **pring, + u32 size, u16 stride, + int node, int queue_index); +void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv, + struct mlx4_en_tx_ring **pring); +void mlx4_en_init_tx_xdp_ring_descs(struct mlx4_en_priv *priv, + struct mlx4_en_tx_ring *ring); +int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv, + struct mlx4_en_tx_ring *ring, + int cq, int user_prio); +void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv, + struct mlx4_en_tx_ring *ring); +void mlx4_en_set_num_rx_rings(struct mlx4_en_dev *mdev); +void mlx4_en_recover_from_oom(struct mlx4_en_priv *priv); +int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv, + struct mlx4_en_rx_ring **pring, + u32 size, u16 stride, int node, int queue_index); +void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv, + struct mlx4_en_rx_ring **pring, + u32 size, u16 stride); +int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv); +void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv, + struct mlx4_en_rx_ring *ring); +int mlx4_en_process_rx_cq(struct net_device *dev, + struct mlx4_en_cq *cq, + int budget); +int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget); +int mlx4_en_poll_tx_cq(struct napi_struct *napi, int budget); +int mlx4_en_process_tx_cq(struct net_device *dev, + struct mlx4_en_cq *cq, int napi_budget); +u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv, + struct mlx4_en_tx_ring *ring, + int index, u64 timestamp, + int napi_mode); +u32 mlx4_en_recycle_tx_desc(struct mlx4_en_priv *priv, + struct mlx4_en_tx_ring *ring, + int index, u64 timestamp, + int napi_mode); +void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride, + int is_tx, int rss, int qpn, int cqn, int user_prio, + struct mlx4_qp_context *context); +void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event); +int mlx4_en_change_mcast_lb(struct mlx4_en_priv *priv, struct mlx4_qp *qp, + int loopback); +void mlx4_en_calc_rx_buf(struct net_device *dev); +int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv); +void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv); +int mlx4_en_create_drop_qp(struct mlx4_en_priv *priv); +void mlx4_en_destroy_drop_qp(struct mlx4_en_priv *priv); +int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring); +void mlx4_en_rx_irq(struct mlx4_cq *mcq); + +int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode); +int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv); + +void mlx4_en_fold_software_stats(struct net_device *dev); +int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset); +int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port); + +#ifdef CONFIG_MLX4_EN_DCB +extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_ops; +extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_pfc_ops; +#endif + +int mlx4_en_setup_tc(struct net_device *dev, u8 up); +int mlx4_en_alloc_tx_queue_per_tc(struct net_device *dev, u8 tc); + +#ifdef CONFIG_RFS_ACCEL +void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv); +#endif + +#define MLX4_EN_NUM_SELF_TEST 5 +void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf); +void mlx4_en_ptp_overflow_check(struct mlx4_en_dev *mdev); + +#define DEV_FEATURE_CHANGED(dev, new_features, feature) \ + ((dev->features & feature) ^ (new_features & feature)) + +int mlx4_en_moderation_update(struct mlx4_en_priv *priv); +int mlx4_en_reset_config(struct net_device *dev, + struct hwtstamp_config ts_config, + netdev_features_t new_features); +void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev, + struct mlx4_en_stats_bitmap *stats_bitmap, + u8 rx_ppp, u8 rx_pause, + u8 tx_ppp, u8 tx_pause); +int mlx4_en_netdev_event(struct notifier_block *this, + unsigned long event, void *ptr); + +struct xdp_md; +int mlx4_en_xdp_rx_timestamp(const struct xdp_md *ctx, u64 *timestamp); +int mlx4_en_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash); + +/* + * Functions for time stamping + */ +u64 mlx4_en_get_cqe_ts(struct mlx4_cqe *cqe); +u64 mlx4_en_get_hwtstamp(struct mlx4_en_dev *mdev, u64 timestamp); +void mlx4_en_fill_hwtstamps(struct mlx4_en_dev *mdev, + struct skb_shared_hwtstamps *hwts, + u64 timestamp); +void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev); +void mlx4_en_remove_timestamp(struct mlx4_en_dev *mdev); + +/* Globals + */ +extern const struct ethtool_ops mlx4_en_ethtool_ops; + + + +/* + * printk / logging functions + */ + +__printf(3, 4) +void en_print(const char *level, const struct mlx4_en_priv *priv, + const char *format, ...); + +#define en_dbg(mlevel, priv, format, ...) \ +do { \ + if (NETIF_MSG_##mlevel & (priv)->msg_enable) \ + en_print(KERN_DEBUG, priv, format, ##__VA_ARGS__); \ +} while (0) +#define en_warn(priv, format, ...) \ + en_print(KERN_WARNING, priv, format, ##__VA_ARGS__) +#define en_err(priv, format, ...) \ + en_print(KERN_ERR, priv, format, ##__VA_ARGS__) +#define en_info(priv, format, ...) \ + en_print(KERN_INFO, priv, format, ##__VA_ARGS__) + +#define mlx4_err(mdev, format, ...) \ + pr_err(DRV_NAME " %s: " format, \ + dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__) +#define mlx4_info(mdev, format, ...) \ + pr_info(DRV_NAME " %s: " format, \ + dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__) +#define mlx4_warn(mdev, format, ...) \ + pr_warn(DRV_NAME " %s: " format, \ + dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__) + +#endif -- cgit v1.2.3