linux - Contrib clone of linux

Age	Commit message (Expand)	Author
2008-11-26	blktrace: port to tracepoints	Arnaldo Carvalho de Melo
2008-10-09	blktrace: use BLKTRACE_BDEV_SIZE as the name size for setup structure	Jens Axboe
2008-10-09	blktrace: simplify flags handling in __blk_add_trace	David Woodhouse
2008-10-09	blktrace: support discard requests	David Woodhouse
2008-07-03	Added in user-injected messages into blk traces	Alan D. Brunelle
2008-06-12	block: disable IRQs until data is written to relay channel	Carl Henrik Lunde
2008-05-28	block: make blktrace use per-cpu buffers for message notes	Jens Axboe
2008-05-28	Added in MESSAGE notes for blktraces	Alan D. Brunelle
2008-05-13	Fix misuses of bdevname()	Jean Delvare
2008-01-28	blktrace: Add blktrace ioctls to SCSI generic devices	Christof Schmitt
2008-01-11	blktrace: kill the unneeded initcall	Jens Axboe
2008-01-11	block: fix blktrace timestamps	Ingo Molnar
2007-11-27	blktrace: Make sure BLKTRACETEARDOWN does the full cleanup.	Aneesh Kumar K.V
2007-10-16	Convert cpu_sibling_map to be a per cpu variable	Mike Travis
2007-10-10	compat_ioctl: handle blk_trace ioctls	Arnd Bergmann
2007-07-27	blktrace: use cpu_clock() instead of sched_clock()	Ingo Molnar
2007-07-24	[BLOCK] Get rid of request_queue_t typedef	Jens Axboe
2007-02-12	[PATCH] mark struct file_operations const 3	Arjan van de Ven
2007-02-11	[PATCH] Relay: add CPU hotplug support	Mathieu Desnoyers
2006-12-07	[PATCH] Allow NULL pointers in percpu_free	Alan Stern
2006-12-04	[PATCH] blktrace: don't return blktrace_seq from trace_note()	Jens Axboe
2006-12-04	[PATCH] blktrace: uninline trace_note()	Jens Axboe
2006-12-01	[PATCH] blktrace: add timestamp message	Olaf Kirch
2006-09-30	[PATCH] Update axboe@suse.de email address	Jens Axboe
2006-09-30	[PATCH] blktrace: cleanup using on_each_cpu	Martin Peschke
2006-09-30	[PATCH] blktrace: support for logging metadata reads	Jens Axboe
2006-09-29	[PATCH] ifdef blktrace debugging fields	Alexey Dobriyan
2006-09-27	[PATCH] inode_diet: Replace inode.u.generic_ip with inode.i_private	Theodore Ts'o
2006-07-25	[PATCH] blktrace: fix read-ahead bit	Milton Miller
2006-07-06	[PATCH] blktrace: readahead support	Nathan Scott
2006-06-30	Remove obsolete #include <linux/config.h>	Jörn Engel
2006-03-23	[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23	Jens Axboe

// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2012 Smith Micro Software, Inc. * Copyright (c) 2012 Bjørn Mork <bjorn@mork.no> * * This driver is based on and reuse most of cdc_ncm, which is * Copyright (C) ST-Ericsson 2010-2012 */ #include <linux/module.h> #include <linux/netdevice.h> #include <linux/ethtool.h> #include <linux/if_vlan.h> #include <linux/ip.h> #include <linux/mii.h> #include <linux/usb.h> #include <linux/usb/cdc.h> #include <linux/usb/usbnet.h> #include <linux/usb/cdc-wdm.h> #include <linux/usb/cdc_ncm.h> #include <net/ipv6.h> #include <net/addrconf.h> #include <net/ipv6_stubs.h> /* alternative VLAN for IP session 0 if not untagged */ #define MBIM_IPS0_VID 4094 /* driver specific data - must match cdc_ncm usage */ struct cdc_mbim_state { struct cdc_ncm_ctx *ctx; atomic_t pmcount; struct usb_driver *subdriver; unsigned long _unused; unsigned long flags; }; /* flags for the cdc_mbim_state.flags field */ enum cdc_mbim_flags { FLAG_IPS0_VLAN = 1 << 0, /* IP session 0 is tagged */ }; /* using a counter to merge subdriver requests with our own into a combined state */ static int cdc_mbim_manage_power(struct usbnet *dev, int on) { struct cdc_mbim_state *info = (void *)&dev->data; int rv = 0; dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__, atomic_read(&info->pmcount), on); if ((on && atomic_add_return(1, &info->pmcount) == 1) || (!on && atomic_dec_and_test(&info->pmcount))) { /* need autopm_get/put here to ensure the usbcore sees the new value */ rv = usb_autopm_get_interface(dev->intf); dev->intf->needs_remote_wakeup = on; if (!rv) usb_autopm_put_interface(dev->intf); } return 0; } static int cdc_mbim_wdm_manage_power(struct usb_interface *intf, int status) { struct usbnet *dev = usb_get_intfdata(intf); /* can be called while disconnecting */ if (!dev) return 0; return cdc_mbim_manage_power(dev, status); } static int cdc_mbim_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid) { struct usbnet *dev = netdev_priv(netdev); struct cdc_mbim_state *info = (void *)&dev->data; /* creation of this VLAN is a request to tag IP session 0 */ if (vid == MBIM_IPS0_VID) info->flags |= FLAG_IPS0_VLAN; else if (vid >= 512) /* we don't map these to MBIM session */ return -EINVAL; return 0; } static int cdc_mbim_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid) { struct usbnet *dev = netdev_priv(netdev); struct cdc_mbim_state *info = (void *)&dev->data; /* this is a request for an untagged IP session 0 */ if (vid == MBIM_IPS0_VID) info->flags &= ~FLAG_IPS0_VLAN; return 0; } static const struct net_device_ops cdc_mbim_netdev_ops = { .ndo_open = usbnet_open, .ndo_stop = usbnet_stop, .ndo_start_xmit = usbnet_start_xmit, .ndo_tx_timeout = usbnet_tx_timeout, .ndo_get_stats64 = usbnet_get_stats64, .ndo_change_mtu = cdc_ncm_change_mtu, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, .ndo_vlan_rx_add_vid = cdc_mbim_rx_add_vid, .ndo_vlan_rx_kill_vid = cdc_mbim_rx_kill_vid, }; /* Change the control interface altsetting and update the .driver_info * pointer if the matching entry after changing class codes points to * a different struct */ static int cdc_mbim_set_ctrlalt(struct usbnet *dev, struct usb_interface *intf, u8 alt) { struct usb_driver *driver = to_usb_driver(intf->dev.driver); const struct usb_device_id *id; struct driver_info *info; int ret; ret = usb_set_interface(dev->udev, intf->cur_altsetting->desc.bInterfaceNumber, alt); if (ret) return ret; id = usb_match_id(intf, driver->id_table); if (!id) return -ENODEV; info = (struct driver_info *)id->driver_info; if (info != dev->driver_info) { dev_dbg(&intf->dev, "driver_info updated to '%s'\n", info->description); dev->driver_info = info; } return 0; } static int cdc_mbim_bind(struct usbnet *dev, struct usb_interface *intf) { struct cdc_ncm_ctx *ctx; struct usb_driver *subdriver = ERR_PTR(-ENODEV); int ret = -ENODEV; u8 data_altsetting = 1; struct cdc_mbim_state *info = (void *)&dev->data; /* should we change control altsetting on a NCM/MBIM function? */ if (cdc_ncm_select_altsetting(intf) == CDC_NCM_COMM_ALTSETTING_MBIM) { data_altsetting = CDC_NCM_DATA_ALTSETTING_MBIM; ret = cdc_mbim_set_ctrlalt(dev, intf, CDC_NCM_COMM_ALTSETTING_MBIM); if (ret) goto err; ret = -ENODEV; } /* we will hit this for NCM/MBIM functions if prefer_mbim is false */ if (!cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) goto err; ret = cdc_ncm_bind_common(dev, intf, data_altsetting, dev->driver_info->data); if (ret) goto err; ctx = info->ctx; /* The MBIM descriptor and the status endpoint are required */ if (ctx->mbim_desc && dev->status) subdriver = usb_cdc_wdm_register(ctx->control, &dev->status->desc, le16_to_cpu(ctx->mbim_desc->wMaxControlMessage), cdc_mbim_wdm_manage_power); if (IS_ERR(subdriver)) { ret = PTR_ERR(subdriver); cdc_ncm_unbind(dev, intf); goto err; } /* can't let usbnet use the interrupt endpoint */ dev->status = NULL; info->subdriver = subdriver; /* MBIM cannot do ARP */ dev->net->flags |= IFF_NOARP; /* no need to put the VLAN tci in the packet headers */ dev->net->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_FILTER; /* monitor VLAN additions and removals */ dev->net->netdev_ops = &cdc_mbim_netdev_ops; err: return ret; } static void cdc_mbim_unbind(struct usbnet *dev, struct usb_interface *intf) { struct cdc_mbim_state *