This series of patches extends number of ports limitaion in application (vhci) side. 0. Version info v2) # Added static to some functions and variables not called from other files. 1. Overview This series conatins 2 patches. 1/2: Extends number of ports using multiple host controllers. 'num_controllers=N' module parameter denotes the number. The default is 1. Number of ports per controller are extended from 8 to USB_MAXCHILDREN(31). It can be altered with -DVHCI_NPORTS=n at compile time. 2/2: Event handling threads are used to be created for each port. This patch aggregates them to one thread. Rewritten with workqueue. Assumed use case is a system that service in internet serves distributes devices in home or office. In the use case, application side might be needed to support more ports than 31. Home/SOHO/Enterprise Intranet/Internet +--------+ +------+ +------+ |Service | +|device|---|Linux |---------------------------|on | |+------+ +------+ |Linux | +------+ controller +--------+ ex) Device Service sensors ................................... environment analysis cameras ................................... monitoring, recording ID/biometric readers ...................... authentication To increase number of ports, existing implementation has an overhead that event handing kernel threads are started for each port. The second patch eliminates the overhead. NOTE: This series depends on "USB/IP over WebSocket" patches. *** BLURB HERE *** Nobuo Iwata (2): usbip: vhci number of ports extension usbip: single thread event handler drivers/usb/usbip/README | 3 + drivers/usb/usbip/stub_dev.c | 3 +- drivers/usb/usbip/usbip_common.c | 7 + drivers/usb/usbip/usbip_common.h | 4 +- drivers/usb/usbip/usbip_event.c | 174 ++++++--- drivers/usb/usbip/usbip_ux.c | 2 +- drivers/usb/usbip/vhci.h | 41 +- drivers/usb/usbip/vhci_hcd.c | 259 ++++++++----- drivers/usb/usbip/vhci_rx.c | 21 +- drivers/usb/usbip/vhci_sysfs.c | 298 +++++++++++---- tools/usb/usbip/libsrc/vhci_driver.c | 548 ++++++++++++++------------- tools/usb/usbip/libsrc/vhci_driver.h | 38 +- tools/usb/usbip/src/usbip_attach.c | 8 +- tools/usb/usbip/src/usbip_port.c | 13 +- tools/usb/usbip/src/usbipd_app.c | 56 ++- 15 files changed, 916 insertions(+), 559 deletions(-) -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html