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/usb/host/fhci-q.c | 281 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 281 insertions(+) create mode 100644 drivers/usb/host/fhci-q.c (limited to 'drivers/usb/host/fhci-q.c') diff --git a/drivers/usb/host/fhci-q.c b/drivers/usb/host/fhci-q.c new file mode 100644 index 000000000..669c24052 --- /dev/null +++ b/drivers/usb/host/fhci-q.c @@ -0,0 +1,281 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Freescale QUICC Engine USB Host Controller Driver + * + * Copyright (c) Freescale Semicondutor, Inc. 2006. + * Shlomi Gridish + * Jerry Huang + * Copyright (c) Logic Product Development, Inc. 2007 + * Peter Barada + * Copyright (c) MontaVista Software, Inc. 2008. + * Anton Vorontsov + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "fhci.h" + +/* maps the hardware error code to the USB error code */ +static int status_to_error(u32 status) +{ + if (status == USB_TD_OK) + return 0; + else if (status & USB_TD_RX_ER_CRC) + return -EILSEQ; + else if (status & USB_TD_RX_ER_NONOCT) + return -EPROTO; + else if (status & USB_TD_RX_ER_OVERUN) + return -ECOMM; + else if (status & USB_TD_RX_ER_BITSTUFF) + return -EPROTO; + else if (status & USB_TD_RX_ER_PID) + return -EILSEQ; + else if (status & (USB_TD_TX_ER_NAK | USB_TD_TX_ER_TIMEOUT)) + return -ETIMEDOUT; + else if (status & USB_TD_TX_ER_STALL) + return -EPIPE; + else if (status & USB_TD_TX_ER_UNDERUN) + return -ENOSR; + else if (status & USB_TD_RX_DATA_UNDERUN) + return -EREMOTEIO; + else if (status & USB_TD_RX_DATA_OVERUN) + return -EOVERFLOW; + else + return -EINVAL; +} + +void fhci_add_td_to_frame(struct fhci_time_frame *frame, struct td *td) +{ + list_add_tail(&td->frame_lh, &frame->tds_list); +} + +void fhci_add_tds_to_ed(struct ed *ed, struct td **td_list, int number) +{ + int i; + + for (i = 0; i < number; i++) { + struct td *td = td_list[i]; + list_add_tail(&td->node, &ed->td_list); + } + if (ed->td_head == NULL) + ed->td_head = td_list[0]; +} + +static struct td *peek_td_from_ed(struct ed *ed) +{ + struct td *td; + + if (!list_empty(&ed->td_list)) + td = list_entry(ed->td_list.next, struct td, node); + else + td = NULL; + + return td; +} + +struct td *fhci_remove_td_from_frame(struct fhci_time_frame *frame) +{ + struct td *td; + + if (!list_empty(&frame->tds_list)) { + td = list_entry(frame->tds_list.next, struct td, frame_lh); + list_del_init(frame->tds_list.next); + } else + td = NULL; + + return td; +} + +struct td *fhci_peek_td_from_frame(struct fhci_time_frame *frame) +{ + struct td *td; + + if (!list_empty(&frame->tds_list)) + td = list_entry(frame->tds_list.next, struct td, frame_lh); + else + td = NULL; + + return td; +} + +struct td *fhci_remove_td_from_ed(struct ed *ed) +{ + struct td *td; + + if (!list_empty(&ed->td_list)) { + td = list_entry(ed->td_list.next, struct td, node); + list_del_init(ed->td_list.next); + + /* if this TD was the ED's head, find next TD */ + if (!list_empty(&ed->td_list)) + ed->td_head = list_entry(ed->td_list.next, struct td, + node); + else + ed->td_head = NULL; + } else + td = NULL; + + return td; +} + +struct td *fhci_remove_td_from_done_list(struct fhci_controller_list *p_list) +{ + struct td *td; + + if (!list_empty(&p_list->done_list)) { + td = list_entry(p_list->done_list.next, struct td, node); + list_del_init(p_list->done_list.next); + } else + td = NULL; + + return td; +} + +void fhci_move_td_from_ed_to_done_list(struct fhci_usb *usb, struct ed *ed) +{ + struct td *td; + + td = ed->td_head; + list_del_init(&td->node); + + /* If this TD was the ED's head,find next TD */ + if (!list_empty(&ed->td_list)) + ed->td_head = list_entry(ed->td_list.next, struct td, node); + else { + ed->td_head = NULL; + ed->state = FHCI_ED_SKIP; + } + ed->toggle_carry = td->toggle; + list_add_tail(&td->node, &usb->hc_list->done_list); + if (td->ioc) + usb->transfer_confirm(usb->fhci); +} + +/* free done FHCI URB resource such as ED and TD */ +static void free_urb_priv(struct fhci_hcd *fhci, struct urb *urb) +{ + int i; + struct urb_priv *urb_priv = urb->hcpriv; + struct ed *ed = urb_priv->ed; + + for (i = 0; i < urb_priv->num_of_tds; i++) { + list_del_init(&urb_priv->tds[i]->node); + fhci_recycle_empty_td(fhci, urb_priv->tds[i]); + } + + /* if this TD was the ED's head,find the next TD */ + if (!list_empty(&ed->td_list)) + ed->td_head = list_entry(ed->td_list.next, struct td, node); + else + ed->td_head = NULL; + + kfree(urb_priv->tds); + kfree(urb_priv); + urb->hcpriv = NULL; + + /* if this TD was the ED's head,find next TD */ + if (ed->td_head == NULL) + list_del_init(&ed->node); + fhci->active_urbs--; +} + +/* this routine called to complete and free done URB */ +void fhci_urb_complete_free(struct fhci_hcd *fhci, struct urb *urb) +{ + free_urb_priv(fhci, urb); + + if (urb->status == -EINPROGRESS) { + if (urb->actual_length != urb->transfer_buffer_length && + urb->transfer_flags & URB_SHORT_NOT_OK) + urb->status = -EREMOTEIO; + else + urb->status = 0; + } + + usb_hcd_unlink_urb_from_ep(fhci_to_hcd(fhci), urb); + + spin_unlock(&fhci->lock); + + usb_hcd_giveback_urb(fhci_to_hcd(fhci), urb, urb->status); + + spin_lock(&fhci->lock); +} + +/* + * caculate transfer length/stats and update the urb + * Precondition: irqsafe(only for urb-?status locking) + */ +void fhci_done_td(struct urb *urb, struct td *td) +{ + struct ed *ed = td->ed; + u32 cc = td->status; + + /* ISO...drivers see per-TD length/status */ + if (ed->mode == FHCI_TF_ISO) { + u32 len; + if (!(urb->transfer_flags & URB_SHORT_NOT_OK && + cc == USB_TD_RX_DATA_UNDERUN)) + cc = USB_TD_OK; + + if (usb_pipeout(urb->pipe)) + len = urb->iso_frame_desc[td->iso_index].length; + else + len = td->actual_len; + + urb->actual_length += len; + urb->iso_frame_desc[td->iso_index].actual_length = len; + urb->iso_frame_desc[td->iso_index].status = + status_to_error(cc); + } + + /* BULK,INT,CONTROL... drivers see aggregate length/status, + * except that "setup" bytes aren't counted and "short" transfers + * might not be reported as errors. + */ + else { + if (td->error_cnt >= 3) + urb->error_count = 3; + + /* control endpoint only have soft stalls */ + + /* update packet status if needed(short may be ok) */ + if (!(urb->transfer_flags & URB_SHORT_NOT_OK) && + cc == USB_TD_RX_DATA_UNDERUN) { + ed->state = FHCI_ED_OPER; + cc = USB_TD_OK; + } + if (cc != USB_TD_OK) { + if (urb->status == -EINPROGRESS) + urb->status = status_to_error(cc); + } + + /* count all non-empty packets except control SETUP packet */ + if (td->type != FHCI_TA_SETUP || td->iso_index != 0) + urb->actual_length += td->actual_len; + } +} + +/* there are some pedning request to unlink */ +void fhci_del_ed_list(struct fhci_hcd *fhci, struct ed *ed) +{ + struct td *td = peek_td_from_ed(ed); + struct urb *urb = td->urb; + struct urb_priv *urb_priv = urb->hcpriv; + + if (urb_priv->state == URB_DEL) { + td = fhci_remove_td_from_ed(ed); + /* HC may have partly processed this TD */ + if (td->status != USB_TD_INPROGRESS) + fhci_done_td(urb, td); + + /* URB is done;clean up */ + if (++(urb_priv->tds_cnt) == urb_priv->num_of_tds) + fhci_urb_complete_free(fhci, urb); + } +} -- cgit v1.2.3