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/media/pci/ddbridge/ddbridge-ci.c | 377 +++++++++++++++++++++++++++++++ 1 file changed, 377 insertions(+) create mode 100644 drivers/media/pci/ddbridge/ddbridge-ci.c (limited to 'drivers/media/pci/ddbridge/ddbridge-ci.c') diff --git a/drivers/media/pci/ddbridge/ddbridge-ci.c b/drivers/media/pci/ddbridge/ddbridge-ci.c new file mode 100644 index 000000000..ee20813c3 --- /dev/null +++ b/drivers/media/pci/ddbridge/ddbridge-ci.c @@ -0,0 +1,377 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * ddbridge-ci.c: Digital Devices bridge CI (DuoFlex, CI Bridge) support + * + * Copyright (C) 2010-2017 Digital Devices GmbH + * Marcus Metzler + * Ralph Metzler + */ + +#include "ddbridge.h" +#include "ddbridge-regs.h" +#include "ddbridge-ci.h" +#include "ddbridge-io.h" +#include "ddbridge-i2c.h" + +#include "cxd2099.h" + +/* Octopus CI internal CI interface */ + +static int wait_ci_ready(struct ddb_ci *ci) +{ + u32 count = 10; + + ndelay(500); + do { + if (ddbreadl(ci->port->dev, + CI_CONTROL(ci->nr)) & CI_READY) + break; + usleep_range(1, 2); + if ((--count) == 0) + return -1; + } while (1); + return 0; +} + +static int read_attribute_mem(struct dvb_ca_en50221 *ca, + int slot, int address) +{ + struct ddb_ci *ci = ca->data; + u32 val, off = (address >> 1) & (CI_BUFFER_SIZE - 1); + + if (address > CI_BUFFER_SIZE) + return -1; + ddbwritel(ci->port->dev, CI_READ_CMD | (1 << 16) | address, + CI_DO_READ_ATTRIBUTES(ci->nr)); + wait_ci_ready(ci); + val = 0xff & ddbreadl(ci->port->dev, CI_BUFFER(ci->nr) + off); + return val; +} + +static int write_attribute_mem(struct dvb_ca_en50221 *ca, int slot, + int address, u8 value) +{ + struct ddb_ci *ci = ca->data; + + ddbwritel(ci->port->dev, CI_WRITE_CMD | (value << 16) | address, + CI_DO_ATTRIBUTE_RW(ci->nr)); + wait_ci_ready(ci); + return 0; +} + +static int read_cam_control(struct dvb_ca_en50221 *ca, + int slot, u8 address) +{ + u32 count = 100; + struct ddb_ci *ci = ca->data; + u32 res; + + ddbwritel(ci->port->dev, CI_READ_CMD | address, + CI_DO_IO_RW(ci->nr)); + ndelay(500); + do { + res = ddbreadl(ci->port->dev, CI_READDATA(ci->nr)); + if (res & CI_READY) + break; + usleep_range(1, 2); + if ((--count) == 0) + return -1; + } while (1); + return 0xff & res; +} + +static int write_cam_control(struct dvb_ca_en50221 *ca, int slot, + u8 address, u8 value) +{ + struct ddb_ci *ci = ca->data; + + ddbwritel(ci->port->dev, CI_WRITE_CMD | (value << 16) | address, + CI_DO_IO_RW(ci->nr)); + wait_ci_ready(ci); + return 0; +} + +static int slot_reset(struct dvb_ca_en50221 *ca, int slot) +{ + struct ddb_ci *ci = ca->data; + + ddbwritel(ci->port->dev, CI_POWER_ON, + CI_CONTROL(ci->nr)); + msleep(100); + ddbwritel(ci->port->dev, CI_POWER_ON | CI_RESET_CAM, + CI_CONTROL(ci->nr)); + ddbwritel(ci->port->dev, CI_ENABLE | CI_POWER_ON | CI_RESET_CAM, + CI_CONTROL(ci->nr)); + usleep_range(20, 25); + ddbwritel(ci->port->dev, CI_ENABLE | CI_POWER_ON, + CI_CONTROL(ci->nr)); + return 0; +} + +static int slot_shutdown(struct dvb_ca_en50221 *ca, int slot) +{ + struct ddb_ci *ci = ca->data; + + ddbwritel(ci->port->dev, 0, CI_CONTROL(ci->nr)); + msleep(300); + return 0; +} + +static int slot_ts_enable(struct dvb_ca_en50221 *ca, int slot) +{ + struct ddb_ci *ci = ca->data; + u32 val = ddbreadl(ci->port->dev, CI_CONTROL(ci->nr)); + + ddbwritel(ci->port->dev, val | CI_BYPASS_DISABLE, + CI_CONTROL(ci->nr)); + return 0; +} + +static int poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open) +{ + struct ddb_ci *ci = ca->data; + u32 val = ddbreadl(ci->port->dev, CI_CONTROL(ci->nr)); + int stat = 0; + + if (val & CI_CAM_DETECT) + stat |= DVB_CA_EN50221_POLL_CAM_PRESENT; + if (val & CI_CAM_READY) + stat |= DVB_CA_EN50221_POLL_CAM_READY; + return stat; +} + +static struct dvb_ca_en50221 en_templ = { + .read_attribute_mem = read_attribute_mem, + .write_attribute_mem = write_attribute_mem, + .read_cam_control = read_cam_control, + .write_cam_control = write_cam_control, + .slot_reset = slot_reset, + .slot_shutdown = slot_shutdown, + .slot_ts_enable = slot_ts_enable, + .poll_slot_status = poll_slot_status, +}; + +static void ci_attach(struct ddb_port *port) +{ + struct ddb_ci *ci; + + ci = kzalloc(sizeof(*ci), GFP_KERNEL); + if (!ci) + return; + memcpy(&ci->en, &en_templ, sizeof(en_templ)); + ci->en.data = ci; + port->en = &ci->en; + port->en_freedata = 1; + ci->port = port; + ci->nr = port->nr - 2; +} + +/* DuoFlex Dual CI support */ + +static int write_creg(struct ddb_ci *ci, u8 data, u8 mask) +{ + struct i2c_adapter *i2c = &ci->port->i2c->adap; + u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13; + + ci->port->creg = (ci->port->creg & ~mask) | data; + return i2c_write_reg(i2c, adr, 0x02, ci->port->creg); +} + +static int read_attribute_mem_xo2(struct dvb_ca_en50221 *ca, + int slot, int address) +{ + struct ddb_ci *ci = ca->data; + struct i2c_adapter *i2c = &ci->port->i2c->adap; + u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13; + int res; + u8 val; + + res = i2c_read_reg16(i2c, adr, 0x8000 | address, &val); + return res ? res : val; +} + +static int write_attribute_mem_xo2(struct dvb_ca_en50221 *ca, int slot, + int address, u8 value) +{ + struct ddb_ci *ci = ca->data; + struct i2c_adapter *i2c = &ci->port->i2c->adap; + u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13; + + return i2c_write_reg16(i2c, adr, 0x8000 | address, value); +} + +static int read_cam_control_xo2(struct dvb_ca_en50221 *ca, + int slot, u8 address) +{ + struct ddb_ci *ci = ca->data; + struct i2c_adapter *i2c = &ci->port->i2c->adap; + u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13; + u8 val; + int res; + + res = i2c_read_reg(i2c, adr, 0x20 | (address & 3), &val); + return res ? res : val; +} + +static int write_cam_control_xo2(struct dvb_ca_en50221 *ca, int slot, + u8 address, u8 value) +{ + struct ddb_ci *ci = ca->data; + struct i2c_adapter *i2c = &ci->port->i2c->adap; + u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13; + + return i2c_write_reg(i2c, adr, 0x20 | (address & 3), value); +} + +static int slot_reset_xo2(struct dvb_ca_en50221 *ca, int slot) +{ + struct ddb_ci *ci = ca->data; + + dev_dbg(ci->port->dev->dev, "%s\n", __func__); + write_creg(ci, 0x01, 0x01); + write_creg(ci, 0x04, 0x04); + msleep(20); + write_creg(ci, 0x02, 0x02); + write_creg(ci, 0x00, 0x04); + write_creg(ci, 0x18, 0x18); + return 0; +} + +static int slot_shutdown_xo2(struct dvb_ca_en50221 *ca, int slot) +{ + struct ddb_ci *ci = ca->data; + + dev_dbg(ci->port->dev->dev, "%s\n", __func__); + write_creg(ci, 0x10, 0xff); + write_creg(ci, 0x08, 0x08); + return 0; +} + +static int slot_ts_enable_xo2(struct dvb_ca_en50221 *ca, int slot) +{ + struct ddb_ci *ci = ca->data; + + dev_dbg(ci->port->dev->dev, "%s\n", __func__); + write_creg(ci, 0x00, 0x10); + return 0; +} + +static int poll_slot_status_xo2(struct dvb_ca_en50221 *ca, int slot, int open) +{ + struct ddb_ci *ci = ca->data; + struct i2c_adapter *i2c = &ci->port->i2c->adap; + u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13; + u8 val = 0; + int stat = 0; + + i2c_read_reg(i2c, adr, 0x01, &val); + + if (val & 2) + stat |= DVB_CA_EN50221_POLL_CAM_PRESENT; + if (val & 1) + stat |= DVB_CA_EN50221_POLL_CAM_READY; + return stat; +} + +static struct dvb_ca_en50221 en_xo2_templ = { + .read_attribute_mem = read_attribute_mem_xo2, + .write_attribute_mem = write_attribute_mem_xo2, + .read_cam_control = read_cam_control_xo2, + .write_cam_control = write_cam_control_xo2, + .slot_reset = slot_reset_xo2, + .slot_shutdown = slot_shutdown_xo2, + .slot_ts_enable = slot_ts_enable_xo2, + .poll_slot_status = poll_slot_status_xo2, +}; + +static void ci_xo2_attach(struct ddb_port *port) +{ + struct ddb_ci *ci; + + ci = kzalloc(sizeof(*ci), GFP_KERNEL); + if (!ci) + return; + memcpy(&ci->en, &en_xo2_templ, sizeof(en_xo2_templ)); + ci->en.data = ci; + port->en = &ci->en; + port->en_freedata = 1; + ci->port = port; + ci->nr = port->nr - 2; + ci->port->creg = 0; + write_creg(ci, 0x10, 0xff); + write_creg(ci, 0x08, 0x08); +} + +static const struct cxd2099_cfg cxd_cfgtmpl = { + .bitrate = 72000, + .polarity = 1, + .clock_mode = 1, + .max_i2c = 512, +}; + +static int ci_cxd2099_attach(struct ddb_port *port, u32 bitrate) +{ + struct cxd2099_cfg cxd_cfg = cxd_cfgtmpl; + struct i2c_client *client; + + cxd_cfg.bitrate = bitrate; + cxd_cfg.en = &port->en; + + client = dvb_module_probe("cxd2099", NULL, &port->i2c->adap, + 0x40, &cxd_cfg); + if (!client) + goto err; + + port->dvb[0].i2c_client[0] = client; + port->en_freedata = 0; + return 0; + +err: + dev_err(port->dev->dev, "CXD2099AR attach failed\n"); + return -ENODEV; +} + +int ddb_ci_attach(struct ddb_port *port, u32 bitrate) +{ + int ret; + + switch (port->type) { + case DDB_CI_EXTERNAL_SONY: + ret = ci_cxd2099_attach(port, bitrate); + if (ret) + return -ENODEV; + break; + case DDB_CI_EXTERNAL_XO2: + case DDB_CI_EXTERNAL_XO2_B: + ci_xo2_attach(port); + break; + case DDB_CI_INTERNAL: + ci_attach(port); + break; + default: + return -ENODEV; + } + + if (!port->en) + return -ENODEV; + dvb_ca_en50221_init(port->dvb[0].adap, port->en, 0, 1); + return 0; +} + +void ddb_ci_detach(struct ddb_port *port) +{ + if (port->dvb[0].dev) + dvb_unregister_device(port->dvb[0].dev); + if (port->en) { + dvb_ca_en50221_release(port->en); + + dvb_module_release(port->dvb[0].i2c_client[0]); + port->dvb[0].i2c_client[0] = NULL; + + /* free alloc'ed memory if needed */ + if (port->en_freedata) + kfree(port->en->data); + + port->en = NULL; + } +} -- cgit v1.2.3