diff options
author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/net/wireless/mediatek/mt76/mt7921/usb.c | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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().
...
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7921/usb.c')
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/usb.c | 406 |
1 files changed, 406 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/usb.c b/drivers/net/wireless/mediatek/mt76/mt7921/usb.c new file mode 100644 index 000000000..8fef09ed2 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7921/usb.c @@ -0,0 +1,406 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2022 MediaTek Inc. + * + * Author: Lorenzo Bianconi <lorenzo@kernel.org> + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/usb.h> + +#include "mt7921.h" +#include "mcu.h" +#include "mac.h" + +static const struct usb_device_id mt7921u_device_table[] = { + { USB_DEVICE_AND_INTERFACE_INFO(0x0e8d, 0x7961, 0xff, 0xff, 0xff), + .driver_info = (kernel_ulong_t)MT7921_FIRMWARE_WM }, + /* Comfast CF-952AX */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3574, 0x6211, 0xff, 0xff, 0xff), + .driver_info = (kernel_ulong_t)MT7921_FIRMWARE_WM }, + { }, +}; + +static u32 mt7921u_rr(struct mt76_dev *dev, u32 addr) +{ + u32 ret; + + mutex_lock(&dev->usb.usb_ctrl_mtx); + ret = ___mt76u_rr(dev, MT_VEND_READ_EXT, + USB_DIR_IN | MT_USB_TYPE_VENDOR, addr); + mutex_unlock(&dev->usb.usb_ctrl_mtx); + + return ret; +} + +static void mt7921u_wr(struct mt76_dev *dev, u32 addr, u32 val) +{ + mutex_lock(&dev->usb.usb_ctrl_mtx); + ___mt76u_wr(dev, MT_VEND_WRITE_EXT, + USB_DIR_OUT | MT_USB_TYPE_VENDOR, addr, val); + mutex_unlock(&dev->usb.usb_ctrl_mtx); +} + +static u32 mt7921u_rmw(struct mt76_dev *dev, u32 addr, + u32 mask, u32 val) +{ + mutex_lock(&dev->usb.usb_ctrl_mtx); + val |= ___mt76u_rr(dev, MT_VEND_READ_EXT, + USB_DIR_IN | MT_USB_TYPE_VENDOR, addr) & ~mask; + ___mt76u_wr(dev, MT_VEND_WRITE_EXT, + USB_DIR_OUT | MT_USB_TYPE_VENDOR, addr, val); + mutex_unlock(&dev->usb.usb_ctrl_mtx); + + return val; +} + +static void mt7921u_copy(struct mt76_dev *dev, u32 offset, + const void *data, int len) +{ + struct mt76_usb *usb = &dev->usb; + int ret, i = 0, batch_len; + const u8 *val = data; + + len = round_up(len, 4); + + mutex_lock(&usb->usb_ctrl_mtx); + while (i < len) { + batch_len = min_t(int, usb->data_len, len - i); + memcpy(usb->data, val + i, batch_len); + ret = __mt76u_vendor_request(dev, MT_VEND_WRITE_EXT, + USB_DIR_OUT | MT_USB_TYPE_VENDOR, + (offset + i) >> 16, offset + i, + usb->data, batch_len); + if (ret < 0) + break; + + i += batch_len; + } + mutex_unlock(&usb->usb_ctrl_mtx); +} + +int mt7921u_mcu_power_on(struct mt7921_dev *dev) +{ + int ret; + + ret = mt76u_vendor_request(&dev->mt76, MT_VEND_POWER_ON, + USB_DIR_OUT | MT_USB_TYPE_VENDOR, + 0x0, 0x1, NULL, 0); + if (ret) + return ret; + + if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_PWR_ON, + MT_TOP_MISC2_FW_PWR_ON, 500)) { + dev_err(dev->mt76.dev, "Timeout for power on\n"); + ret = -EIO; + } + + return ret; +} + +static int +mt7921u_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb, + int cmd, int *seq) +{ + struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); + u32 pad, ep; + int ret; + + ret = mt76_connac2_mcu_fill_message(mdev, skb, cmd, seq); + if (ret) + return ret; + + mdev->mcu.timeout = 3 * HZ; + + if (cmd != MCU_CMD(FW_SCATTER)) + ep = MT_EP_OUT_INBAND_CMD; + else + ep = MT_EP_OUT_AC_BE; + + mt7921_skb_add_usb_sdio_hdr(dev, skb, 0); + pad = round_up(skb->len, 4) + 4 - skb->len; + __skb_put_zero(skb, pad); + + ret = mt76u_bulk_msg(&dev->mt76, skb->data, skb->len, NULL, + 1000, ep); + dev_kfree_skb(skb); + + return ret; +} + +static int mt7921u_mcu_init(struct mt7921_dev *dev) +{ + static const struct mt76_mcu_ops mcu_ops = { + .headroom = MT_SDIO_HDR_SIZE + + sizeof(struct mt76_connac2_mcu_txd), + .tailroom = MT_USB_TAIL_SIZE, + .mcu_skb_send_msg = mt7921u_mcu_send_message, + .mcu_parse_response = mt7921_mcu_parse_response, + }; + int ret; + + dev->mt76.mcu_ops = &mcu_ops; + + mt76_set(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN); + ret = mt7921_run_firmware(dev); + if (ret) + return ret; + + set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state); + mt76_clear(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN); + + return 0; +} + +static void mt7921u_stop(struct ieee80211_hw *hw) +{ + struct mt7921_dev *dev = mt7921_hw_dev(hw); + + mt76u_stop_tx(&dev->mt76); + mt7921_stop(hw); +} + +static void mt7921u_cleanup(struct mt7921_dev *dev) +{ + clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); + mt7921u_wfsys_reset(dev); + skb_queue_purge(&dev->mt76.mcu.res_q); + mt76u_queues_deinit(&dev->mt76); +} + +static int mt7921u_probe(struct usb_interface *usb_intf, + const struct usb_device_id *id) +{ + static const struct mt76_driver_ops drv_ops = { + .txwi_size = MT_SDIO_TXD_SIZE, + .drv_flags = MT_DRV_RX_DMA_HDR | MT_DRV_HW_MGMT_TXQ | + MT_DRV_AMSDU_OFFLOAD, + .survey_flags = SURVEY_INFO_TIME_TX | + SURVEY_INFO_TIME_RX | + SURVEY_INFO_TIME_BSS_RX, + .tx_prepare_skb = mt7921_usb_sdio_tx_prepare_skb, + .tx_complete_skb = mt7921_usb_sdio_tx_complete_skb, + .tx_status_data = mt7921_usb_sdio_tx_status_data, + .rx_skb = mt7921_queue_rx_skb, + .rx_check = mt7921_rx_check, + .sta_ps = mt7921_sta_ps, + .sta_add = mt7921_mac_sta_add, + .sta_assoc = mt7921_mac_sta_assoc, + .sta_remove = mt7921_mac_sta_remove, + .update_survey = mt7921_update_channel, + }; + static const struct mt7921_hif_ops hif_ops = { + .mcu_init = mt7921u_mcu_init, + .init_reset = mt7921u_init_reset, + .reset = mt7921u_mac_reset, + }; + static struct mt76_bus_ops bus_ops = { + .rr = mt7921u_rr, + .wr = mt7921u_wr, + .rmw = mt7921u_rmw, + .read_copy = mt76u_read_copy, + .write_copy = mt7921u_copy, + .type = MT76_BUS_USB, + }; + struct usb_device *udev = interface_to_usbdev(usb_intf); + struct ieee80211_ops *ops; + struct ieee80211_hw *hw; + struct mt7921_dev *dev; + struct mt76_dev *mdev; + u8 features; + int ret; + + features = mt7921_check_offload_capability(&usb_intf->dev, (const char *) + id->driver_info); + ops = devm_kmemdup(&usb_intf->dev, &mt7921_ops, sizeof(mt7921_ops), + GFP_KERNEL); + if (!ops) + return -ENOMEM; + + if (!(features & MT7921_FW_CAP_CNM)) { + ops->remain_on_channel = NULL; + ops->cancel_remain_on_channel = NULL; + ops->add_chanctx = NULL; + ops->remove_chanctx = NULL; + ops->change_chanctx = NULL; + ops->assign_vif_chanctx = NULL; + ops->unassign_vif_chanctx = NULL; + ops->mgd_prepare_tx = NULL; + ops->mgd_complete_tx = NULL; + } + + ops->stop = mt7921u_stop; + + mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), ops, &drv_ops); + if (!mdev) + return -ENOMEM; + + dev = container_of(mdev, struct mt7921_dev, mt76); + dev->fw_features = features; + dev->hif_ops = &hif_ops; + + udev = usb_get_dev(udev); + usb_reset_device(udev); + + usb_set_intfdata(usb_intf, dev); + + ret = __mt76u_init(mdev, usb_intf, &bus_ops); + if (ret < 0) + goto error; + + mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) | + (mt76_rr(dev, MT_HW_REV) & 0xff); + dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev); + + if (mt76_get_field(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_N9_RDY)) { + ret = mt7921u_wfsys_reset(dev); + if (ret) + goto error; + } + + ret = mt7921u_mcu_power_on(dev); + if (ret) + goto error; + + ret = mt76u_alloc_mcu_queue(&dev->mt76); + if (ret) + goto error; + + ret = mt76u_alloc_queues(&dev->mt76); + if (ret) + goto error; + + ret = mt7921u_dma_init(dev, false); + if (ret) + return ret; + + hw = mt76_hw(dev); + /* check hw sg support in order to enable AMSDU */ + hw->max_tx_fragments = mdev->usb.sg_en ? MT_HW_TXP_MAX_BUF_NUM : 1; + + ret = mt7921_register_device(dev); + if (ret) + goto error; + + return 0; + +error: + mt76u_queues_deinit(&dev->mt76); + + usb_set_intfdata(usb_intf, NULL); + usb_put_dev(interface_to_usbdev(usb_intf)); + + mt76_free_device(&dev->mt76); + + return ret; +} + +static void mt7921u_disconnect(struct usb_interface *usb_intf) +{ + struct mt7921_dev *dev = usb_get_intfdata(usb_intf); + + cancel_work_sync(&dev->init_work); + if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state)) + return; + + mt76_unregister_device(&dev->mt76); + mt7921u_cleanup(dev); + + usb_set_intfdata(usb_intf, NULL); + usb_put_dev(interface_to_usbdev(usb_intf)); + + mt76_free_device(&dev->mt76); +} + +#ifdef CONFIG_PM +static int mt7921u_suspend(struct usb_interface *intf, pm_message_t state) +{ + struct mt7921_dev *dev = usb_get_intfdata(intf); + struct mt76_connac_pm *pm = &dev->pm; + int err; + + pm->suspended = true; + flush_work(&dev->reset_work); + + err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, true); + if (err) + goto failed; + + mt76u_stop_rx(&dev->mt76); + mt76u_stop_tx(&dev->mt76); + + return 0; + +failed: + pm->suspended = false; + + if (err < 0) + mt7921_reset(&dev->mt76); + + return err; +} + +static int mt7921u_resume(struct usb_interface *intf) +{ + struct mt7921_dev *dev = usb_get_intfdata(intf); + struct mt76_connac_pm *pm = &dev->pm; + bool reinit = true; + int err, i; + + for (i = 0; i < 10; i++) { + u32 val = mt76_rr(dev, MT_WF_SW_DEF_CR_USB_MCU_EVENT); + + if (!(val & MT_WF_SW_SER_TRIGGER_SUSPEND)) { + reinit = false; + break; + } + if (val & MT_WF_SW_SER_DONE_SUSPEND) { + mt76_wr(dev, MT_WF_SW_DEF_CR_USB_MCU_EVENT, 0); + break; + } + + msleep(20); + } + + if (reinit || mt7921_dma_need_reinit(dev)) { + err = mt7921u_dma_init(dev, true); + if (err) + goto failed; + } + + err = mt76u_resume_rx(&dev->mt76); + if (err < 0) + goto failed; + + err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, false); +failed: + pm->suspended = false; + + if (err < 0) + mt7921_reset(&dev->mt76); + + return err; +} +#endif /* CONFIG_PM */ + +MODULE_DEVICE_TABLE(usb, mt7921u_device_table); +MODULE_FIRMWARE(MT7921_FIRMWARE_WM); +MODULE_FIRMWARE(MT7921_ROM_PATCH); + +static struct usb_driver mt7921u_driver = { + .name = KBUILD_MODNAME, + .id_table = mt7921u_device_table, + .probe = mt7921u_probe, + .disconnect = mt7921u_disconnect, +#ifdef CONFIG_PM + .suspend = mt7921u_suspend, + .resume = mt7921u_resume, + .reset_resume = mt7921u_resume, +#endif /* CONFIG_PM */ + .soft_unbind = 1, + .disable_hub_initiated_lpm = 1, +}; +module_usb_driver(mt7921u_driver); + +MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>"); +MODULE_LICENSE("Dual BSD/GPL"); |