From 885582c48e5fbf47ccc4273aaa5f2f56ad513253 Mon Sep 17 00:00:00 2001 From: Simon Arlott Date: Sat, 21 Nov 2009 15:12:56 +0000 Subject: [PATCH] USB: cxacru: firmware writes on OHCI are slow, log progress Firmware writing takes 256ms per 4KB with OHCI, which is very slow compared to 7ms per 4KB with UHCI. Until I have access to a hardware USB analyser it may not be possible to determine why this happens. Instead of appearing to do nothing, log progress when writing firmware and then log the ATM device information when finished. Remove an unnecessary 4 second delay. Signed-off-by: Simon Arlott Signed-off-by: Greg Kroah-Hartman --- drivers/usb/atm/cxacru.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index 5dc21383aa83..5e3d7b9a78a7 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -725,6 +725,9 @@ static int cxacru_atm_start(struct usbatm_data *usbatm_instance, mutex_unlock(&instance->poll_state_serialize); mutex_unlock(&instance->adsl_state_serialize); + printk(KERN_INFO "%s%d: %s %pM\n", atm_dev->type, atm_dev->number, + usbatm_instance->description, atm_dev->esi); + if (start_polling) cxacru_poll_status(&instance->poll_work.work); return 0; @@ -939,6 +942,7 @@ static void cxacru_upload_firmware(struct cxacru_data *instance, } /* Firmware */ + usb_info(usbatm, "loading firmware\n"); ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, FW_ADDR, fw->data, fw->size); if (ret) { usb_err(usbatm, "Firmware upload failed: %d\n", ret); @@ -947,6 +951,7 @@ static void cxacru_upload_firmware(struct cxacru_data *instance, /* Boot ROM patch */ if (instance->modem_type->boot_rom_patch) { + usb_info(usbatm, "loading boot ROM patch\n"); ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_ADDR, bp->data, bp->size); if (ret) { usb_err(usbatm, "Boot ROM patching failed: %d\n", ret); @@ -961,6 +966,7 @@ static void cxacru_upload_firmware(struct cxacru_data *instance, return; } + usb_info(usbatm, "starting device\n"); if (instance->modem_type->boot_rom_patch) { val = cpu_to_le32(BR_ADDR); ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_STACK_ADDR, (u8 *) &val, 4); @@ -1004,8 +1010,6 @@ static void cxacru_upload_firmware(struct cxacru_data *instance, return; } } - - msleep_interruptible(4000); } static int cxacru_find_firmware(struct cxacru_data *instance, -- 2.20.1