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/chelsio/cxgb4/cxgb4_cudbg.c | 279 +++++++++++++++++++++++ 1 file changed, 279 insertions(+) create mode 100644 drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c') diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c new file mode 100644 index 000000000..dd66b2444 --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c @@ -0,0 +1,279 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2017 Chelsio Communications. All rights reserved. + */ + +#include "t4_regs.h" +#include "cxgb4.h" +#include "cxgb4_cudbg.h" +#include "cudbg_zlib.h" + +static const struct cxgb4_collect_entity cxgb4_collect_mem_dump[] = { + { CUDBG_EDC0, cudbg_collect_edc0_meminfo }, + { CUDBG_EDC1, cudbg_collect_edc1_meminfo }, + { CUDBG_MC0, cudbg_collect_mc0_meminfo }, + { CUDBG_MC1, cudbg_collect_mc1_meminfo }, + { CUDBG_HMA, cudbg_collect_hma_meminfo }, +}; + +static const struct cxgb4_collect_entity cxgb4_collect_hw_dump[] = { + { CUDBG_MBOX_LOG, cudbg_collect_mbox_log }, + { CUDBG_QDESC, cudbg_collect_qdesc }, + { CUDBG_DEV_LOG, cudbg_collect_fw_devlog }, + { CUDBG_REG_DUMP, cudbg_collect_reg_dump }, + { CUDBG_CIM_LA, cudbg_collect_cim_la }, + { CUDBG_CIM_MA_LA, cudbg_collect_cim_ma_la }, + { CUDBG_CIM_QCFG, cudbg_collect_cim_qcfg }, + { CUDBG_CIM_IBQ_TP0, cudbg_collect_cim_ibq_tp0 }, + { CUDBG_CIM_IBQ_TP1, cudbg_collect_cim_ibq_tp1 }, + { CUDBG_CIM_IBQ_ULP, cudbg_collect_cim_ibq_ulp }, + { CUDBG_CIM_IBQ_SGE0, cudbg_collect_cim_ibq_sge0 }, + { CUDBG_CIM_IBQ_SGE1, cudbg_collect_cim_ibq_sge1 }, + { CUDBG_CIM_IBQ_NCSI, cudbg_collect_cim_ibq_ncsi }, + { CUDBG_CIM_OBQ_ULP0, cudbg_collect_cim_obq_ulp0 }, + { CUDBG_CIM_OBQ_ULP1, cudbg_collect_cim_obq_ulp1 }, + { CUDBG_CIM_OBQ_ULP2, cudbg_collect_cim_obq_ulp2 }, + { CUDBG_CIM_OBQ_ULP3, cudbg_collect_cim_obq_ulp3 }, + { CUDBG_CIM_OBQ_SGE, cudbg_collect_cim_obq_sge }, + { CUDBG_CIM_OBQ_NCSI, cudbg_collect_cim_obq_ncsi }, + { CUDBG_RSS, cudbg_collect_rss }, + { CUDBG_RSS_VF_CONF, cudbg_collect_rss_vf_config }, + { CUDBG_PATH_MTU, cudbg_collect_path_mtu }, + { CUDBG_PM_STATS, cudbg_collect_pm_stats }, + { CUDBG_HW_SCHED, cudbg_collect_hw_sched }, + { CUDBG_TP_INDIRECT, cudbg_collect_tp_indirect }, + { CUDBG_SGE_INDIRECT, cudbg_collect_sge_indirect }, + { CUDBG_ULPRX_LA, cudbg_collect_ulprx_la }, + { CUDBG_TP_LA, cudbg_collect_tp_la }, + { CUDBG_MEMINFO, cudbg_collect_meminfo }, + { CUDBG_CIM_PIF_LA, cudbg_collect_cim_pif_la }, + { CUDBG_CLK, cudbg_collect_clk_info }, + { CUDBG_CIM_OBQ_RXQ0, cudbg_collect_obq_sge_rx_q0 }, + { CUDBG_CIM_OBQ_RXQ1, cudbg_collect_obq_sge_rx_q1 }, + { CUDBG_PCIE_INDIRECT, cudbg_collect_pcie_indirect }, + { CUDBG_PM_INDIRECT, cudbg_collect_pm_indirect }, + { CUDBG_TID_INFO, cudbg_collect_tid }, + { CUDBG_PCIE_CONFIG, cudbg_collect_pcie_config }, + { CUDBG_DUMP_CONTEXT, cudbg_collect_dump_context }, + { CUDBG_MPS_TCAM, cudbg_collect_mps_tcam }, + { CUDBG_VPD_DATA, cudbg_collect_vpd_data }, + { CUDBG_LE_TCAM, cudbg_collect_le_tcam }, + { CUDBG_CCTRL, cudbg_collect_cctrl }, + { CUDBG_MA_INDIRECT, cudbg_collect_ma_indirect }, + { CUDBG_ULPTX_LA, cudbg_collect_ulptx_la }, + { CUDBG_UP_CIM_INDIRECT, cudbg_collect_up_cim_indirect }, + { CUDBG_PBT_TABLE, cudbg_collect_pbt_tables }, + { CUDBG_HMA_INDIRECT, cudbg_collect_hma_indirect }, +}; + +static const struct cxgb4_collect_entity cxgb4_collect_flash_dump[] = { + { CUDBG_FLASH, cudbg_collect_flash }, +}; + +u32 cxgb4_get_dump_length(struct adapter *adap, u32 flag) +{ + u32 i, entity; + u32 len = 0; + u32 wsize; + + if (flag & CXGB4_ETH_DUMP_HW) { + for (i = 0; i < ARRAY_SIZE(cxgb4_collect_hw_dump); i++) { + entity = cxgb4_collect_hw_dump[i].entity; + len += cudbg_get_entity_length(adap, entity); + } + } + + if (flag & CXGB4_ETH_DUMP_MEM) { + for (i = 0; i < ARRAY_SIZE(cxgb4_collect_mem_dump); i++) { + entity = cxgb4_collect_mem_dump[i].entity; + len += cudbg_get_entity_length(adap, entity); + } + } + + if (flag & CXGB4_ETH_DUMP_FLASH) + len += adap->params.sf_size; + + /* If compression is enabled, a smaller destination buffer is enough */ + wsize = cudbg_get_workspace_size(); + if (wsize && len > CUDBG_DUMP_BUFF_SIZE) + len = CUDBG_DUMP_BUFF_SIZE; + + return len; +} + +static void cxgb4_cudbg_collect_entity(struct cudbg_init *pdbg_init, + struct cudbg_buffer *dbg_buff, + const struct cxgb4_collect_entity *e_arr, + u32 arr_size, void *buf, u32 *tot_size) +{ + struct cudbg_error cudbg_err = { 0 }; + struct cudbg_entity_hdr *entity_hdr; + u32 i, total_size = 0; + int ret; + + for (i = 0; i < arr_size; i++) { + const struct cxgb4_collect_entity *e = &e_arr[i]; + + entity_hdr = cudbg_get_entity_hdr(buf, e->entity); + entity_hdr->entity_type = e->entity; + entity_hdr->start_offset = dbg_buff->offset; + memset(&cudbg_err, 0, sizeof(struct cudbg_error)); + ret = e->collect_cb(pdbg_init, dbg_buff, &cudbg_err); + if (ret) { + entity_hdr->size = 0; + dbg_buff->offset = entity_hdr->start_offset; + } else { + cudbg_align_debug_buffer(dbg_buff, entity_hdr); + } + + /* Log error and continue with next entity */ + if (cudbg_err.sys_err) + ret = CUDBG_SYSTEM_ERROR; + + entity_hdr->hdr_flags = ret; + entity_hdr->sys_err = cudbg_err.sys_err; + entity_hdr->sys_warn = cudbg_err.sys_warn; + total_size += entity_hdr->size; + } + + *tot_size += total_size; +} + +static int cudbg_alloc_compress_buff(struct cudbg_init *pdbg_init) +{ + u32 workspace_size; + + workspace_size = cudbg_get_workspace_size(); + pdbg_init->compress_buff = vzalloc(CUDBG_COMPRESS_BUFF_SIZE + + workspace_size); + if (!pdbg_init->compress_buff) + return -ENOMEM; + + pdbg_init->compress_buff_size = CUDBG_COMPRESS_BUFF_SIZE; + pdbg_init->workspace = (u8 *)pdbg_init->compress_buff + + CUDBG_COMPRESS_BUFF_SIZE - workspace_size; + return 0; +} + +static void cudbg_free_compress_buff(struct cudbg_init *pdbg_init) +{ + vfree(pdbg_init->compress_buff); +} + +int cxgb4_cudbg_collect(struct adapter *adap, void *buf, u32 *buf_size, + u32 flag) +{ + struct cudbg_buffer dbg_buff = { 0 }; + u32 size, min_size, total_size = 0; + struct cudbg_init cudbg_init; + struct cudbg_hdr *cudbg_hdr; + int rc; + + size = *buf_size; + + memset(&cudbg_init, 0, sizeof(struct cudbg_init)); + cudbg_init.adap = adap; + cudbg_init.outbuf = buf; + cudbg_init.outbuf_size = size; + + dbg_buff.data = buf; + dbg_buff.size = size; + dbg_buff.offset = 0; + + cudbg_hdr = (struct cudbg_hdr *)buf; + cudbg_hdr->signature = CUDBG_SIGNATURE; + cudbg_hdr->hdr_len = sizeof(struct cudbg_hdr); + cudbg_hdr->major_ver = CUDBG_MAJOR_VERSION; + cudbg_hdr->minor_ver = CUDBG_MINOR_VERSION; + cudbg_hdr->max_entities = CUDBG_MAX_ENTITY; + cudbg_hdr->chip_ver = adap->params.chip; + cudbg_hdr->dump_type = CUDBG_DUMP_TYPE_MINI; + + min_size = sizeof(struct cudbg_hdr) + + sizeof(struct cudbg_entity_hdr) * + cudbg_hdr->max_entities; + if (size < min_size) + return -ENOMEM; + + rc = cudbg_get_workspace_size(); + if (rc) { + /* Zlib available. So, use zlib deflate */ + cudbg_init.compress_type = CUDBG_COMPRESSION_ZLIB; + rc = cudbg_alloc_compress_buff(&cudbg_init); + if (rc) { + /* Ignore error and continue without compression. */ + dev_warn(adap->pdev_dev, + "Fail allocating compression buffer ret: %d. Continuing without compression.\n", + rc); + cudbg_init.compress_type = CUDBG_COMPRESSION_NONE; + rc = 0; + } + } else { + cudbg_init.compress_type = CUDBG_COMPRESSION_NONE; + } + + cudbg_hdr->compress_type = cudbg_init.compress_type; + dbg_buff.offset += min_size; + total_size = dbg_buff.offset; + + if (flag & CXGB4_ETH_DUMP_HW) + cxgb4_cudbg_collect_entity(&cudbg_init, &dbg_buff, + cxgb4_collect_hw_dump, + ARRAY_SIZE(cxgb4_collect_hw_dump), + buf, + &total_size); + + if (flag & CXGB4_ETH_DUMP_MEM) + cxgb4_cudbg_collect_entity(&cudbg_init, &dbg_buff, + cxgb4_collect_mem_dump, + ARRAY_SIZE(cxgb4_collect_mem_dump), + buf, + &total_size); + + if (flag & CXGB4_ETH_DUMP_FLASH) + cxgb4_cudbg_collect_entity(&cudbg_init, &dbg_buff, + cxgb4_collect_flash_dump, + ARRAY_SIZE(cxgb4_collect_flash_dump), + buf, + &total_size); + + cudbg_free_compress_buff(&cudbg_init); + cudbg_hdr->data_len = total_size; + if (cudbg_init.compress_type != CUDBG_COMPRESSION_NONE) + *buf_size = size; + else + *buf_size = total_size; + return 0; +} + +void cxgb4_init_ethtool_dump(struct adapter *adapter) +{ + adapter->eth_dump.flag = CXGB4_ETH_DUMP_NONE; + adapter->eth_dump.version = adapter->params.fw_vers; + adapter->eth_dump.len = 0; +} + +static int cxgb4_cudbg_vmcoredd_collect(struct vmcoredd_data *data, void *buf) +{ + struct adapter *adap = container_of(data, struct adapter, vmcoredd); + u32 len = data->size; + + return cxgb4_cudbg_collect(adap, buf, &len, CXGB4_ETH_DUMP_ALL); +} + +int cxgb4_cudbg_vmcore_add_dump(struct adapter *adap) +{ + struct vmcoredd_data *data = &adap->vmcoredd; + u32 len; + + len = sizeof(struct cudbg_hdr) + + sizeof(struct cudbg_entity_hdr) * CUDBG_MAX_ENTITY; + len += CUDBG_DUMP_BUFF_SIZE; + + data->size = len; + snprintf(data->dump_name, sizeof(data->dump_name), "%s_%s", + cxgb4_driver_name, adap->name); + data->vmcoredd_callback = cxgb4_cudbg_vmcoredd_collect; + + return vmcore_add_device_dump(data); +} -- cgit v1.2.3