diff options
Diffstat (limited to 'drivers/net/usb')
| -rw-r--r-- | drivers/net/usb/Kconfig | 22 | ||||
| -rw-r--r-- | drivers/net/usb/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/usb/asix_common.c | 117 | ||||
| -rw-r--r-- | drivers/net/usb/asix_devices.c | 19 | ||||
| -rw-r--r-- | drivers/net/usb/cdc_mbim.c | 412 | ||||
| -rw-r--r-- | drivers/net/usb/cdc_ncm.c | 645 | ||||
| -rw-r--r-- | drivers/net/usb/dm9601.c | 107 | ||||
| -rw-r--r-- | drivers/net/usb/int51x1.c | 52 | ||||
| -rw-r--r-- | drivers/net/usb/mcs7830.c | 85 | ||||
| -rw-r--r-- | drivers/net/usb/net1080.c | 110 | ||||
| -rw-r--r-- | drivers/net/usb/plusb.c | 11 | ||||
| -rw-r--r-- | drivers/net/usb/sierra_net.c | 47 | ||||
| -rw-r--r-- | drivers/net/usb/smsc75xx.c | 957 | ||||
| -rw-r--r-- | drivers/net/usb/smsc95xx.c | 706 | ||||
| -rw-r--r-- | drivers/net/usb/smsc95xx.h | 25 | ||||
| -rw-r--r-- | drivers/net/usb/usbnet.c | 196 |
16 files changed, 2195 insertions, 1317 deletions
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig index c1ae76968f47..ef976215b649 100644 --- a/drivers/net/usb/Kconfig +++ b/drivers/net/usb/Kconfig @@ -219,6 +219,24 @@ config USB_NET_CDC_NCM * ST-Ericsson M343 HSPA Mobile Broadband Modem (reference design) * Ericsson F5521gw Mobile Broadband Module +config USB_NET_CDC_MBIM + tristate "CDC MBIM support" + depends on USB_USBNET + select USB_WDM + select USB_NET_CDC_NCM + help + This driver provides support for CDC MBIM (Mobile Broadband + Interface Model) devices. The CDC MBIM specification is + available from <http://www.usb.org/>. + + MBIM devices require configuration using the management + protocol defined by the MBIM specification. This driver + provides unfiltered access to the MBIM control channel + through the associated /dev/cdc-wdmx character device. + + To compile this driver as a module, choose M here: the + module will be called cdc_mbim. + config USB_NET_DM9601 tristate "Davicom DM9601 based USB 1.1 10/100 ethernet devices" depends on USB_USBNET @@ -230,6 +248,8 @@ config USB_NET_DM9601 config USB_NET_SMSC75XX tristate "SMSC LAN75XX based USB 2.0 gigabit ethernet devices" depends on USB_USBNET + select BITREVERSE + select CRC16 select CRC32 help This option adds support for SMSC LAN95XX based USB 2.0 @@ -238,6 +258,8 @@ config USB_NET_SMSC75XX config USB_NET_SMSC95XX tristate "SMSC LAN95XX based USB 2.0 10/100 ethernet devices" depends on USB_USBNET + select BITREVERSE + select CRC16 select CRC32 help This option adds support for SMSC LAN95XX based USB 2.0 diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile index bf063008c1af..478691326f37 100644 --- a/drivers/net/usb/Makefile +++ b/drivers/net/usb/Makefile @@ -31,4 +31,5 @@ obj-$(CONFIG_USB_NET_CX82310_ETH) += cx82310_eth.o obj-$(CONFIG_USB_NET_CDC_NCM) += cdc_ncm.o obj-$(CONFIG_USB_VL600) += lg-vl600.o obj-$(CONFIG_USB_NET_QMI_WWAN) += qmi_wwan.o +obj-$(CONFIG_USB_NET_CDC_MBIM) += cdc_mbim.o diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c index 774d9ce2dafc..50d167330d38 100644 --- a/drivers/net/usb/asix_common.c +++ b/drivers/net/usb/asix_common.c @@ -25,121 +25,30 @@ int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data) { - void *buf; - int err = -ENOMEM; - - netdev_dbg(dev->net, "asix_read_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n", - cmd, value, index, size); - - buf = kmalloc(size, GFP_KERNEL); - if (!buf) - goto out; - - err = usb_control_msg( - dev->udev, - usb_rcvctrlpipe(dev->udev, 0), - cmd, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, - index, - buf, - size, - USB_CTRL_GET_TIMEOUT); - if (err == size) - memcpy(data, buf, size); - else if (err >= 0) - err = -EINVAL; - kfree(buf); + int ret; + ret = usbnet_read_cmd(dev, cmd, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, index, data, size); -out: - return err; + if (ret != size && ret >= 0) + return -EINVAL; + return ret; } int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data) { - void *buf = NULL; - int err = -ENOMEM; - - netdev_dbg(dev->net, "asix_write_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n", - cmd, value, index, size); - - if (data) { - buf = kmemdup(data, size, GFP_KERNEL); - if (!buf) - goto out; - } - - err = usb_control_msg( - dev->udev, - usb_sndctrlpipe(dev->udev, 0), - cmd, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, - index, - buf, - size, - USB_CTRL_SET_TIMEOUT); - kfree(buf); - -out: - return err; -} - -static void asix_async_cmd_callback(struct urb *urb) -{ - struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; - int status = urb->status; - - if (status < 0) - printk(KERN_DEBUG "asix_async_cmd_callback() failed with %d", - status); - - kfree(req); - usb_free_urb(urb); + return usbnet_write_cmd(dev, cmd, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, index, data, size); } void asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data) { - struct usb_ctrlrequest *req; - int status; - struct urb *urb; - - netdev_dbg(dev->net, "asix_write_cmd_async() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n", - cmd, value, index, size); - - urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!urb) { - netdev_err(dev->net, "Error allocating URB in write_cmd_async!\n"); - return; - } - - req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); - if (!req) { - netdev_err(dev->net, "Failed to allocate memory for control request\n"); - usb_free_urb(urb); - return; - } - - req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE; - req->bRequest = cmd; - req->wValue = cpu_to_le16(value); - req->wIndex = cpu_to_le16(index); - req->wLength = cpu_to_le16(size); - - usb_fill_control_urb(urb, dev->udev, - usb_sndctrlpipe(dev->udev, 0), - (void *)req, data, size, - asix_async_cmd_callback, req); - - status = usb_submit_urb(urb, GFP_ATOMIC); - if (status < 0) { - netdev_err(dev->net, "Error submitting the control message: status=%d\n", - status); - kfree(req); - usb_free_urb(urb); - } + usbnet_write_cmd_async(dev, cmd, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, index, data, size); } int asix_rx_fixup(struct usbnet *dev, struct sk_buff *skb) diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c index 33ab824773c5..7a6e758f48e7 100644 --- a/drivers/net/usb/asix_devices.c +++ b/drivers/net/usb/asix_devices.c @@ -64,6 +64,16 @@ static void asix_status(struct usbnet *dev, struct urb *urb) } } +static void asix_set_netdev_dev_addr(struct usbnet *dev, u8 *addr) +{ + if (is_valid_ether_addr(addr)) { + memcpy(dev->net->dev_addr, addr, ETH_ALEN); + } else { + netdev_info(dev->net, "invalid hw address, using random\n"); + eth_hw_addr_random(dev->net); + } +} + /* Get the PHY Identifier from the PHYSID1 & PHYSID2 MII registers */ static u32 asix_get_phyid(struct usbnet *dev) { @@ -225,7 +235,8 @@ static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf) ret); goto out; } - memcpy(dev->net->dev_addr, buf, ETH_ALEN); + + asix_set_netdev_dev_addr(dev, buf); /* Initialize MII structure */ dev->mii.dev = dev->net; @@ -423,7 +434,8 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf) netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret); return ret; } - memcpy(dev->net->dev_addr, buf, ETH_ALEN); + + asix_set_netdev_dev_addr(dev, buf); /* Initialize MII structure */ dev->mii.dev = dev->net; @@ -777,7 +789,8 @@ static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf) netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret); return ret; } - memcpy(dev->net->dev_addr, buf, ETH_ALEN); + + asix_set_netdev_dev_addr(dev, buf); /* Initialize MII structure */ dev->mii.dev = dev->net; diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c new file mode 100644 index 000000000000..42f51c71ec1f --- /dev/null +++ b/drivers/net/usb/cdc_mbim.c @@ -0,0 +1,412 @@ +/* + * 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 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + */ + +#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> + +/* driver specific data - must match cdc_ncm usage */ +struct cdc_mbim_state { + struct cdc_ncm_ctx *ctx; + atomic_t pmcount; + struct usb_driver *subdriver; + struct usb_interface *control; + struct usb_interface *data; +}; + +/* 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); + if (rv < 0) + goto err; + dev->intf->needs_remote_wakeup = on; + usb_autopm_put_interface(dev->intf); + } +err: + return rv; +} + +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_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 = CDC_NCM_DATA_ALTSETTING_NCM; + struct cdc_mbim_state *info = (void *)&dev->data; + + /* see if interface supports MBIM alternate setting */ + if (intf->num_altsetting == 2) { + if (!cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) + usb_set_interface(dev->udev, + intf->cur_altsetting->desc.bInterfaceNumber, + CDC_NCM_COMM_ALTSETTING_MBIM); + data_altsetting = CDC_NCM_DATA_ALTSETTING_MBIM; + } + + /* Probably NCM, defer for cdc_ncm_bind */ + if (!cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) + goto err; + + ret = cdc_ncm_bind_common(dev, intf, data_altsetting); + 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_TX; +err: + return ret; +} + +static void cdc_mbim_unbind(struct usbnet *dev, struct usb_interface *intf) +{ + struct cdc_mbim_state *info = (void *)&dev->data; + struct cdc_ncm_ctx *ctx = info->ctx; + + /* disconnect subdriver from control interface */ + if (info->subdriver && info->subdriver->disconnect) + info->subdriver->disconnect(ctx->control); + info->subdriver = NULL; + + /* let NCM unbind clean up both control and data interface */ + cdc_ncm_unbind(dev, intf); +} + + +static struct sk_buff *cdc_mbim_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) +{ + struct sk_buff *skb_out; + struct cdc_mbim_state *info = (void *)&dev->data; + struct cdc_ncm_ctx *ctx = info->ctx; + __le32 sign = cpu_to_le32(USB_CDC_MBIM_NDP16_IPS_SIGN); + u16 tci = 0; + u8 *c; + + if (!ctx) + goto error; + + if (skb) { + if (skb->len <= sizeof(ETH_HLEN)) + goto error; + + /* mapping VLANs to MBIM sessions: + * no tag => IPS session <0> + * 1 - 255 => IPS session <vlanid> + * 256 - 511 => DSS session <vlanid - 256> + * 512 - 4095 => unsupported, drop + */ + vlan_get_tag(skb, &tci); + + switch (tci & 0x0f00) { + case 0x0000: /* VLAN ID 0 - 255 */ + /* verify that datagram is IPv4 or IPv6 */ + skb_reset_mac_header(skb); + switch (eth_hdr(skb)->h_proto) { + case htons(ETH_P_IP): + case htons(ETH_P_IPV6): + break; + default: + goto error; + } + c = (u8 *)&sign; + c[3] = tci; + break; + case 0x0100: /* VLAN ID 256 - 511 */ + sign = cpu_to_le32(USB_CDC_MBIM_NDP16_DSS_SIGN); + c = (u8 *)&sign; + c[3] = tci; + break; + default: + netif_err(dev, tx_err, dev->net, + "unsupported tci=0x%04x\n", tci); + goto error; + } + skb_pull(skb, ETH_HLEN); + } + + spin_lock_bh(&ctx->mtx); + skb_out = cdc_ncm_fill_tx_frame(ctx, skb, sign); + spin_unlock_bh(&ctx->mtx); + return skb_out; + +error: + if (skb) + dev_kfree_skb_any(skb); + + return NULL; +} + +static struct sk_buff *cdc_mbim_process_dgram(struct usbnet *dev, u8 *buf, size_t len, u16 tci) +{ + __be16 proto = htons(ETH_P_802_3); + struct sk_buff *skb = NULL; + + if (tci < 256) { /* IPS session? */ + if (len < sizeof(struct iphdr)) + goto err; + + switch (*buf & 0xf0) { + case 0x40: + proto = htons(ETH_P_IP); + break; + case 0x60: + proto = htons(ETH_P_IPV6); + break; + default: + goto err; + } + } + + skb = netdev_alloc_skb_ip_align(dev->net, len + ETH_HLEN); + if (!skb) + goto err; + + /* add an ethernet header */ + skb_put(skb, ETH_HLEN); + skb_reset_mac_header(skb); + eth_hdr(skb)->h_proto = proto; + memset(eth_hdr(skb)->h_source, 0, ETH_ALEN); + memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN); + + /* add datagram */ + memcpy(skb_put(skb, len), buf, len); + + /* map MBIM session to VLAN */ + if (tci) + vlan_put_tag(skb, tci); +err: + return skb; +} + +static int cdc_mbim_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in) +{ + struct sk_buff *skb; + struct cdc_mbim_state *info = (void *)&dev->data; + struct cdc_ncm_ctx *ctx = info->ctx; + int len; + int nframes; + int x; + int offset; + struct usb_cdc_ncm_ndp16 *ndp16; + struct usb_cdc_ncm_dpe16 *dpe16; + int ndpoffset; + int loopcount = 50; /* arbitrary max preventing infinite loop */ + u8 *c; + u16 tci; + + ndpoffset = cdc_ncm_rx_verify_nth16(ctx, skb_in); + if (ndpoffset < 0) + goto error; + +next_ndp: + nframes = cdc_ncm_rx_verify_ndp16(skb_in, ndpoffset); + if (nframes < 0) + goto error; + + ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb_in->data + ndpoffset); + + switch (ndp16->dwSignature & cpu_to_le32(0x00ffffff)) { + case cpu_to_le32(USB_CDC_MBIM_NDP16_IPS_SIGN): + c = (u8 *)&ndp16->dwSignature; + tci = c[3]; + break; + case cpu_to_le32(USB_CDC_MBIM_NDP16_DSS_SIGN): + c = (u8 *)&ndp16->dwSignature; + tci = c[3] + 256; + break; + default: + netif_dbg(dev, rx_err, dev->net, + "unsupported NDP signature <0x%08x>\n", + le32_to_cpu(ndp16->dwSignature)); + goto err_ndp; + + } + + dpe16 = ndp16->dpe16; + for (x = 0; x < nframes; x++, dpe16++) { + offset = le16_to_cpu(dpe16->wDatagramIndex); + len = le16_to_cpu(dpe16->wDatagramLength); + + /* + * CDC NCM ch. 3.7 + * All entries after first NULL entry are to be ignored + */ + if ((offset == 0) || (len == 0)) { + if (!x) + goto err_ndp; /* empty NTB */ + break; + } + + /* sanity checking */ + if (((offset + len) > skb_in->len) || (len > ctx->rx_max)) { + netif_dbg(dev, rx_err, dev->net, + "invalid frame detected (ignored) offset[%u]=%u, length=%u, skb=%p\n", + x, offset, len, skb_in); + if (!x) + goto err_ndp; + break; + } else { + skb = cdc_mbim_process_dgram(dev, skb_in->data + offset, len, tci); + if (!skb) + goto error; + usbnet_skb_return(dev, skb); + } + } +err_ndp: + /* are there more NDPs to process? */ + ndpoffset = le16_to_cpu(ndp16->wNextNdpIndex); + if (ndpoffset && loopcount--) + goto next_ndp; + + return 1; +error: + return 0; +} + +static int cdc_mbim_suspend(struct usb_interface *intf, pm_message_t message) +{ + int ret = 0; + struct usbnet *dev = usb_get_intfdata(intf); + struct cdc_mbim_state *info = (void *)&dev->data; + struct cdc_ncm_ctx *ctx = info->ctx; + + if (ctx == NULL) { + ret = -1; + goto error; + } + + ret = usbnet_suspend(intf, message); + if (ret < 0) + goto error; + + if (intf == ctx->control && info->subdriver && info->subdriver->suspend) + ret = info->subdriver->suspend(intf, message); + if (ret < 0) + usbnet_resume(intf); + +error: + return ret; +} + +static int cdc_mbim_resume(struct usb_interface *intf) +{ + int ret = 0; + struct usbnet *dev = usb_get_intfdata(intf); + struct cdc_mbim_state *info = (void *)&dev->data; + struct cdc_ncm_ctx *ctx = info->ctx; + bool callsub = (intf == ctx->control && info->subdriver && info->subdriver->resume); + + if (callsub) + ret = info->subdriver->resume(intf); + if (ret < 0) + goto err; + ret = usbnet_resume(intf); + if (ret < 0 && callsub && info->subdriver->suspend) + info->subdriver->suspend(intf, PMSG_SUSPEND); +err: + return ret; +} + +static const struct driver_info cdc_mbim_info = { + .description = "CDC MBIM", + .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN, + .bind = cdc_mbim_bind, + .unbind = cdc_mbim_unbind, + .manage_power = cdc_mbim_manage_power, + .rx_fixup = cdc_mbim_rx_fixup, + .tx_fixup = cdc_mbim_tx_fixup, +}; + +static const struct usb_device_id mbim_devs[] = { + /* This duplicate NCM entry is intentional. MBIM devices can + * be disguised as NCM by default, and this is necessary to + * allow us to bind the correct driver_info to such devices. + * + * bind() will sort out this for us, selecting the correct + * entry and reject the other + */ + { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&cdc_mbim_info, + }, + { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&cdc_mbim_info, + }, + { + }, +}; +MODULE_DEVICE_TABLE(usb, mbim_devs); + +static struct usb_driver cdc_mbim_driver = { + .name = "cdc_mbim", + .id_table = mbim_devs, + .probe = usbnet_probe, + .disconnect = usbnet_disconnect, + .suspend = cdc_mbim_suspend, + .resume = cdc_mbim_resume, + .reset_resume = cdc_mbim_resume, + .supports_autosuspend = 1, + .disable_hub_initiated_lpm = 1, +}; +module_usb_driver(cdc_mbim_driver); + +MODULE_AUTHOR("Greg Suarez <gsuarez@smithmicro.com>"); +MODULE_AUTHOR("Bjørn Mork <bjorn@mork.no>"); +MODULE_DESCRIPTION("USB CDC MBIM host driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 74fab1a40156..d38bc20a60e2 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -51,90 +51,10 @@ #include <linux/atomic.h> #include <linux/usb/usbnet.h> #include <linux/usb/cdc.h> +#include <linux/usb/cdc_ncm.h> #define DRIVER_VERSION "14-Mar-2012" -/* CDC NCM subclass 3.2.1 */ -#define USB_CDC_NCM_NDP16_LENGTH_MIN 0x10 - -/* Maximum NTB length */ -#define CDC_NCM_NTB_MAX_SIZE_TX 32768 /* bytes */ -#define CDC_NCM_NTB_MAX_SIZE_RX 32768 /* bytes */ - -/* Minimum value for MaxDatagramSize, ch. 6.2.9 */ -#define CDC_NCM_MIN_DATAGRAM_SIZE 1514 /* bytes */ - -#define CDC_NCM_MIN_TX_PKT 512 /* bytes */ - -/* Default value for MaxDatagramSize */ -#define CDC_NCM_MAX_DATAGRAM_SIZE 8192 /* bytes */ - -/* - * Maximum amount of datagrams in NCM Datagram Pointer Table, not counting - * the last NULL entry. - */ -#define CDC_NCM_DPT_DATAGRAMS_MAX 40 - -/* Restart the timer, if amount of datagrams is less than given value */ -#define CDC_NCM_RESTART_TIMER_DATAGRAM_CNT 3 -#define CDC_NCM_TIMER_PENDING_CNT 2 -#define CDC_NCM_TIMER_INTERVAL (400UL * NSEC_PER_USEC) - -/* The following macro defines the minimum header space */ -#define CDC_NCM_MIN_HDR_SIZE \ - (sizeof(struct usb_cdc_ncm_nth16) + sizeof(struct usb_cdc_ncm_ndp16) + \ - (CDC_NCM_DPT_DATAGRAMS_MAX + 1) * sizeof(struct usb_cdc_ncm_dpe16)) - -struct cdc_ncm_data { - struct usb_cdc_ncm_nth16 nth16; - struct usb_cdc_ncm_ndp16 ndp16; - struct usb_cdc_ncm_dpe16 dpe16[CDC_NCM_DPT_DATAGRAMS_MAX + 1]; -}; - -struct cdc_ncm_ctx { - struct cdc_ncm_data tx_ncm; - struct usb_cdc_ncm_ntb_parameters ncm_parm; - struct hrtimer tx_timer; - struct tasklet_struct bh; - - const struct usb_cdc_ncm_desc *func_desc; - const struct usb_cdc_header_desc *header_desc; - const struct usb_cdc_union_desc *union_desc; - const struct usb_cdc_ether_desc *ether_desc; - - struct net_device *netdev; - struct usb_device *udev; - struct usb_host_endpoint *in_ep; - struct usb_host_endpoint *out_ep; - struct usb_host_endpoint *status_ep; - struct usb_interface *intf; - struct usb_interface *control; - struct usb_interface *data; - - struct sk_buff *tx_curr_skb; - struct sk_buff *tx_rem_skb; - - spinlock_t mtx; - atomic_t stop; - - u32 tx_timer_pending; - u32 tx_curr_offset; - u32 tx_curr_last_offset; - u32 tx_curr_frame_num; - u32 rx_speed; - u32 tx_speed; - u32 rx_max; - u32 tx_max; - u32 max_datagram_size; - u16 tx_max_datagrams; - u16 tx_remainder; - u16 tx_modulus; - u16 tx_ndp_modulus; - u16 tx_seq; - u16 rx_seq; - u16 connected; -}; - static void cdc_ncm_txpath_bh(unsigned long param); static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx); static enum hrtimer_restart cdc_ncm_tx_timer_cb(struct hrtimer *hr_timer); @@ -158,17 +78,19 @@ static u8 cdc_ncm_setup(struct cdc_ncm_ctx *ctx) u8 flags; u8 iface_no; int err; + int eth_hlen; u16 ntb_fmt_supported; + u32 min_dgram_size; + u32 min_hdr_size; + struct usbnet *dev = netdev_priv(ctx->netdev); iface_no = ctx->control->cur_altsetting->desc.bInterfaceNumber; - err = usb_control_msg(ctx->udev, - usb_rcvctrlpipe(ctx->udev, 0), - USB_CDC_GET_NTB_PARAMETERS, - USB_TYPE_CLASS | USB_DIR_IN - | USB_RECIP_INTERFACE, - 0, iface_no, &ctx->ncm_parm, - sizeof(ctx->ncm_parm), 10000); + err = usbnet_read_cmd(dev, USB_CDC_GET_NTB_PARAMETERS, + USB_TYPE_CLASS | USB_DIR_IN + |USB_RECIP_INTERFACE, + 0, iface_no, &ctx->ncm_parm, + sizeof(ctx->ncm_parm)); if (err < 0) { pr_debug("failed GET_NTB_PARAMETERS\n"); return 1; @@ -184,10 +106,19 @@ static u8 cdc_ncm_setup(struct cdc_ncm_ctx *ctx) ctx->tx_max_datagrams = le16_to_cpu(ctx->ncm_parm.wNtbOutMaxDatagrams); ntb_fmt_supported = le16_to_cpu(ctx->ncm_parm.bmNtbFormatsSupported); - if (ctx->func_desc != NULL) + eth_hlen = ETH_HLEN; + min_dgram_size = CDC_NCM_MIN_DATAGRAM_SIZE; + min_hdr_size = CDC_NCM_MIN_HDR_SIZE; + if (ctx->mbim_desc != NULL) { + flags = ctx->mbim_desc->bmNetworkCapabilities; + eth_hlen = 0; + min_dgram_size = CDC_MBIM_MIN_DATAGRAM_SIZE; + min_hdr_size = 0; + } else if (ctx->func_desc != NULL) { flags = ctx->func_desc->bmNetworkCapabilities; - else + } else { flags = 0; + } pr_debug("dwNtbInMaxSize=%u dwNtbOutMaxSize=%u " "wNdpOutPayloadRemainder=%u wNdpOutDivisor=%u " @@ -215,49 +146,19 @@ static u8 cdc_ncm_setup(struct cdc_ncm_ctx *ctx) /* inform device about NTB input size changes */ if (ctx->rx_max != le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize)) { + __le32 dwNtbInMaxSize = cpu_to_le32(ctx->rx_max); - if (flags & USB_CDC_NCM_NCAP_NTB_INPUT_SIZE) { - struct usb_cdc_ncm_ndp_input_size *ndp_in_sz; - - ndp_in_sz = kzalloc(sizeof(*ndp_in_sz), GFP_KERNEL); - if (!ndp_in_sz) { - err = -ENOMEM; - goto size_err; - } - - err = usb_control_msg(ctx->udev, - usb_sndctrlpipe(ctx->udev, 0), - USB_CDC_SET_NTB_INPUT_SIZE, - USB_TYPE_CLASS | USB_DIR_OUT - | USB_RECIP_INTERFACE, - 0, iface_no, ndp_in_sz, 8, 1000); - kfree(ndp_in_sz); - } else { - __le32 *dwNtbInMaxSize; - dwNtbInMaxSize = kzalloc(sizeof(*dwNtbInMaxSize), - GFP_KERNEL); - if (!dwNtbInMaxSize) { - err = -ENOMEM; - goto size_err; - } - *dwNtbInMaxSize = cpu_to_le32(ctx->rx_max); - - err = usb_control_msg(ctx->udev, - usb_sndctrlpipe(ctx->udev, 0), - USB_CDC_SET_NTB_INPUT_SIZE, - USB_TYPE_CLASS | USB_DIR_OUT - | USB_RECIP_INTERFACE, - 0, iface_no, dwNtbInMaxSize, 4, 1000); - kfree(dwNtbInMaxSize); - } -size_err: + err = usbnet_write_cmd(dev, USB_CDC_SET_NTB_INPUT_SIZE, + USB_TYPE_CLASS | USB_DIR_OUT + | USB_RECIP_INTERFACE, + 0, iface_no, &dwNtbInMaxSize, 4); if (err < 0) pr_debug("Setting NTB Input Size failed\n"); } /* verify maximum size of transmitted NTB in bytes */ if ((ctx->tx_max < - (CDC_NCM_MIN_HDR_SIZE + CDC_NCM_MIN_DATAGRAM_SIZE)) || + (min_hdr_size + min_dgram_size)) || (ctx->tx_max > CDC_NCM_NTB_MAX_SIZE_TX)) { pr_debug("Using default maximum transmit length=%d\n", CDC_NCM_NTB_MAX_SIZE_TX); @@ -299,93 +200,85 @@ size_err: } /* adjust TX-remainder according to NCM specification. */ - ctx->tx_remainder = ((ctx->tx_remainder - ETH_HLEN) & - (ctx->tx_modulus - 1)); + ctx->tx_remainder = ((ctx->tx_remainder - eth_hlen) & + (ctx->tx_modulus - 1)); /* additional configuration */ /* set CRC Mode */ if (flags & USB_CDC_NCM_NCAP_CRC_MODE) { - err = usb_control_msg(ctx->udev, usb_sndctrlpipe(ctx->udev, 0), - USB_CDC_SET_CRC_MODE, - USB_TYPE_CLASS | USB_DIR_OUT - | USB_RECIP_INTERFACE, - USB_CDC_NCM_CRC_NOT_APPENDED, - iface_no, NULL, 0, 1000); + err = usbnet_write_cmd(dev, USB_CDC_SET_CRC_MODE, + USB_TYPE_CLASS | USB_DIR_OUT + | USB_RECIP_INTERFACE, + USB_CDC_NCM_CRC_NOT_APPENDED, + iface_no, NULL, 0); if (err < 0) pr_debug("Setting CRC mode off failed\n"); } /* set NTB format, if both formats are supported */ if (ntb_fmt_supported & USB_CDC_NCM_NTH32_SIGN) { - err = usb_control_msg(ctx->udev, usb_sndctrlpipe(ctx->udev, 0), - USB_CDC_SET_NTB_FORMAT, USB_TYPE_CLASS - | USB_DIR_OUT | USB_RECIP_INTERFACE, - USB_CDC_NCM_NTB16_FORMAT, - iface_no, NULL, 0, 1000); + err = usbnet_write_cmd(dev, USB_CDC_SET_NTB_FORMAT, + USB_TYPE_CLASS | USB_DIR_OUT + | USB_RECIP_INTERFACE, + USB_CDC_NCM_NTB16_FORMAT, + iface_no, NULL, 0); if (err < 0) pr_debug("Setting NTB format to 16-bit failed\n"); } - ctx->max_datagram_size = CDC_NCM_MIN_DATAGRAM_SIZE; + ctx->max_datagram_size = min_dgram_size; /* set Max Datagram Size (MTU) */ if (flags & USB_CDC_NCM_NCAP_MAX_DATAGRAM_SIZE) { - __le16 *max_datagram_size; - u16 eth_max_sz = le16_to_cpu(ctx->ether_desc->wMaxSegmentSize); - - max_datagram_size = kzalloc(sizeof(*max_datagram_size), - GFP_KERNEL); - if (!max_datagram_size) { - err = -ENOMEM; + __le16 max_datagram_size; + u16 eth_max_sz; + if (ctx->ether_desc != NULL) + eth_max_sz = le16_to_cpu(ctx->ether_desc->wMaxSegmentSize); + else if (ctx->mbim_desc != NULL) + eth_max_sz = le16_to_cpu(ctx->mbim_desc->wMaxSegmentSize); + else goto max_dgram_err; - } - err = usb_control_msg(ctx->udev, usb_rcvctrlpipe(ctx->udev, 0), - USB_CDC_GET_MAX_DATAGRAM_SIZE, - USB_TYPE_CLASS | USB_DIR_IN - | USB_RECIP_INTERFACE, - 0, iface_no, max_datagram_size, - 2, 1000); + err = usbnet_read_cmd(dev, USB_CDC_GET_MAX_DATAGRAM_SIZE, + USB_TYPE_CLASS | USB_DIR_IN + | USB_RECIP_INTERFACE, + 0, iface_no, &max_datagram_size, 2); if (err < 0) { pr_debug("GET_MAX_DATAGRAM_SIZE failed, use size=%u\n", - CDC_NCM_MIN_DATAGRAM_SIZE); + min_dgram_size); } else { ctx->max_datagram_size = - le16_to_cpu(*max_datagram_size); + le16_to_cpu(max_datagram_size); /* Check Eth descriptor value */ if (ctx->max_datagram_size > eth_max_sz) ctx->max_datagram_size = eth_max_sz; if (ctx->max_datagram_size > CDC_NCM_MAX_DATAGRAM_SIZE) - ctx->max_datagram_size = - CDC_NCM_MAX_DATAGRAM_SIZE; + ctx->max_datagram_size = CDC_NCM_MAX_DATAGRAM_SIZE; - if (ctx->max_datagram_size < CDC_NCM_MIN_DATAGRAM_SIZE) - ctx->max_datagram_size = - CDC_NCM_MIN_DATAGRAM_SIZE; + if (ctx->max_datagram_size < min_dgram_size) + ctx->max_datagram_size = min_dgram_size; /* if value changed, update device */ if (ctx->max_datagram_size != - le16_to_cpu(*max_datagram_size)) { - err = usb_control_msg(ctx->udev, - usb_sndctrlpipe(ctx->udev, 0), + le16_to_cpu(max_datagram_size)) { + err = usbnet_write_cmd(dev, USB_CDC_SET_MAX_DATAGRAM_SIZE, USB_TYPE_CLASS | USB_DIR_OUT | USB_RECIP_INTERFACE, 0, - iface_no, max_datagram_size, - 2, 1000); + iface_no, &max_datagram_size, + 2); if (err < 0) pr_debug("SET_MAX_DGRAM_SIZE failed\n"); } } - kfree(max_datagram_size); } max_dgram_err: - if (ctx->netdev->mtu != (ctx->max_datagram_size - ETH_HLEN)) - ctx->netdev->mtu = ctx->max_datagram_size - ETH_HLEN; + if (ctx->netdev->mtu != (ctx->max_datagram_size - eth_hlen)) + ctx->netdev->mtu = ctx->max_datagram_size - eth_hlen; return 0; } @@ -451,7 +344,7 @@ static const struct ethtool_ops cdc_ncm_ethtool_ops = { .nway_reset = usbnet_nway_reset, }; -static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) +int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting) { struct cdc_ncm_ctx *ctx; struct usb_driver *driver; @@ -525,6 +418,13 @@ static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) ctx->func_desc = (const struct usb_cdc_ncm_desc *)buf; break; + case USB_CDC_MBIM_TYPE: + if (buf[0] < sizeof(*(ctx->mbim_desc))) + break; + + ctx->mbim_desc = (const struct usb_cdc_mbim_desc *)buf; + break; + default: break; } @@ -537,7 +437,7 @@ advance: /* check if we got everything */ if ((ctx->control == NULL) || (ctx->data == NULL) || - (ctx->ether_desc == NULL) || (ctx->control != intf)) + ((!ctx->mbim_desc) && ((ctx->ether_desc == NULL) || (ctx->control != intf)))) goto error; /* claim data interface, if different from control */ @@ -559,7 +459,7 @@ advance: goto error2; /* configure data interface */ - temp = usb_set_interface(dev->udev, iface_no, 1); + temp = usb_set_interface(dev->udev, iface_no, data_altsetting); if (temp) goto error2; @@ -576,11 +476,13 @@ advance: usb_set_intfdata(ctx->control, dev); usb_set_intfdata(ctx->intf, dev); - temp = usbnet_get_ethernet_addr(dev, ctx->ether_desc->iMACAddress); - if (temp) - goto error2; + if (ctx->ether_desc) { + temp = usbnet_get_ethernet_addr(dev, ctx->ether_desc->iMACAddress); + if (temp) + goto error2; + dev_info(&dev->udev->dev, "MAC-Address: %pM\n", dev->net->dev_addr); + } - dev_info(&dev->udev->dev, "MAC-Address: %pM\n", dev->net->dev_addr); dev->in = usb_rcvbulkpipe(dev->udev, ctx->in_ep->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); @@ -589,13 +491,6 @@ advance: dev->status = ctx->status_ep; dev->rx_urb_size = ctx->rx_max; - /* - * We should get an event when network connection is "connected" or - * "disconnected". Set network connection in "disconnected" state - * (carrier is OFF) during attach, so the IP network stack does not - * start IPv6 negotiation and more. - */ - netif_carrier_off(dev->net); ctx->tx_speed = ctx->rx_speed = 0; return 0; @@ -609,8 +504,9 @@ error: dev_info(&dev->udev->dev, "bind() failure\n"); return -ENODEV; } +EXPORT_SYMBOL_GPL(cdc_ncm_bind_common); -static void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf) +void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf) { struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; struct usb_driver *driver = driver_of(intf); @@ -644,52 +540,121 @@ static void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf) usb_set_intfdata(ctx->intf, NULL); cdc_ncm_free(ctx); } +EXPORT_SYMBOL_GPL(cdc_ncm_unbind); -static void cdc_ncm_zero_fill(u8 *ptr, u32 first, u32 end, u32 max) +static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) { - if (first >= max) - return; - if (first >= end) - return; - if (end > max) - end = max; - memset(ptr + first, 0, end - first); + int ret; + + /* The MBIM spec defines a NCM compatible default altsetting, + * which we may have matched: + * + * "Functions that implement both NCM 1.0 and MBIM (an + * “NCM/MBIM function”) according to this recommendation + * shall provide two alternate settings for the + * Communication Interface. Alternate setting 0, and the + * associated class and endpoint descriptors, shall be + * constructed according to the rules given for the + * Communication Interface in section 5 of [USBNCM10]. + * Alternate setting 1, and the associated class and + * endpoint descriptors, shall be constructed according to + * the rules given in section 6 (USB Device Model) of this + * specification." + * + * Do not bind to such interfaces, allowing cdc_mbim to handle + * them + */ +#if IS_ENABLED(CONFIG_USB_NET_CDC_MBIM) + if ((intf->num_altsetting == 2) && + !usb_set_interface(dev->udev, + intf->cur_altsetting->desc.bInterfaceNumber, + CDC_NCM_COMM_ALTSETTING_MBIM) && + cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) + return -ENODEV; +#endif + + /* NCM data altsetting is always 1 */ + ret = cdc_ncm_bind_common(dev, intf, 1); + + /* + * We should get an event when network connection is "connected" or + * "disconnected". Set network connection in "disconnected" state + * (carrier is OFF) during attach, so the IP network stack does not + * start IPv6 negotiation and more. + */ + netif_carrier_off(dev->net); + return ret; } -static struct sk_buff * -cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) +static void cdc_ncm_align_tail(struct sk_buff *skb, size_t modulus, size_t remainder, size_t max) { + size_t align = ALIGN(skb->len, modulus) - skb->len + remainder; + + if (skb->len + align > max) + align = max - skb->len; + if (align && skb_tailroom(skb) >= align) + memset(skb_put(skb, align), 0, align); +} + +/* return a pointer to a valid struct usb_cdc_ncm_ndp16 of type sign, possibly + * allocating a new one within skb + */ +static struct usb_cdc_ncm_ndp16 *cdc_ncm_ndp(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign, size_t reserve) +{ + struct usb_cdc_ncm_ndp16 *ndp16 = NULL; + struct usb_cdc_ncm_nth16 *nth16 = (void *)skb->data; + size_t ndpoffset = le16_to_cpu(nth16->wNdpIndex); + + /* follow the chain of NDPs, looking for a match */ + while (ndpoffset) { + ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb->data + ndpoffset); + if (ndp16->dwSignature == sign) + return ndp16; + ndpoffset = le16_to_cpu(ndp16->wNextNdpIndex); + } + + /* align new NDP */ + cdc_ncm_align_tail(skb, ctx->tx_ndp_modulus, 0, ctx->tx_max); + + /* verify that there is room for the NDP and the datagram (reserve) */ + if ((ctx->tx_max - skb->len - reserve) < CDC_NCM_NDP_SIZE) + return NULL; + + /* link to it */ + if (ndp16) + ndp16->wNextNdpIndex = cpu_to_le16(skb->len); + else + nth16->wNdpIndex = cpu_to_le16(skb->len); + + /* push a new empty NDP */ + ndp16 = (struct usb_cdc_ncm_ndp16 *)memset(skb_put(skb, CDC_NCM_NDP_SIZE), 0, CDC_NCM_NDP_SIZE); + ndp16->dwSignature = sign; + ndp16->wLength = cpu_to_le16(sizeof(struct usb_cdc_ncm_ndp16) + sizeof(struct usb_cdc_ncm_dpe16)); + return ndp16; +} + +struct sk_buff * +cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign) +{ + struct usb_cdc_ncm_nth16 *nth16; + struct usb_cdc_ncm_ndp16 *ndp16; struct sk_buff *skb_out; - u32 rem; - u32 offset; - u32 last_offset; - u16 n = 0, index; + u16 n = 0, index, ndplen; u8 ready2send = 0; /* if there is a remaining skb, it gets priority */ - if (skb != NULL) + if (skb != NULL) { swap(skb, ctx->tx_rem_skb); - else + swap(sign, ctx->tx_rem_sign); + } else { ready2send = 1; - - /* - * +----------------+ - * | skb_out | - * +----------------+ - * ^ offset - * ^ last_offset - */ + } /* check if we are resuming an OUT skb */ - if (ctx->tx_curr_skb != NULL) { - /* pop variables */ - skb_out = ctx->tx_curr_skb; - offset = ctx->tx_curr_offset; - last_offset = ctx->tx_curr_last_offset; - n = ctx->tx_curr_frame_num; + skb_out = ctx->tx_curr_skb; - } else { - /* reset variables */ + /* allocate a new OUT skb */ + if (!skb_out) { skb_out = alloc_skb((ctx->tx_max + 1), GFP_ATOMIC); if (skb_out == NULL) { if (skb != NULL) { @@ -698,35 +663,21 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) } goto exit_no_skb; } + /* fill out the initial 16-bit NTB header */ + nth16 = (struct usb_cdc_ncm_nth16 *)memset(skb_put(skb_out, sizeof(struct usb_cdc_ncm_nth16)), 0, sizeof(struct usb_cdc_ncm_nth16)); + nth16->dwSignature = cpu_to_le32(USB_CDC_NCM_NTH16_SIGN); + nth16->wHeaderLength = cpu_to_le16(sizeof(struct usb_cdc_ncm_nth16)); + nth16->wSequence = cpu_to_le16(ctx->tx_seq++); - /* make room for NTH and NDP */ - offset = ALIGN(sizeof(struct usb_cdc_ncm_nth16), - ctx->tx_ndp_modulus) + - sizeof(struct usb_cdc_ncm_ndp16) + - (ctx->tx_max_datagrams + 1) * - sizeof(struct usb_cdc_ncm_dpe16); - - /* store last valid offset before alignment */ - last_offset = offset; - /* align first Datagram offset correctly */ - offset = ALIGN(offset, ctx->tx_modulus) + ctx->tx_remainder; - /* zero buffer till the first IP datagram */ - cdc_ncm_zero_fill(skb_out->data, 0, offset, offset); - n = 0; + /* count total number of frames in this NTB */ ctx->tx_curr_frame_num = 0; } - for (; n < ctx->tx_max_datagrams; n++) { - /* check if end of transmit buffer is reached */ - if (offset >= ctx->tx_max) { - ready2send = 1; - break; - } - /* compute maximum buffer size */ - rem = ctx->tx_max - offset; - + for (n = ctx->tx_curr_frame_num; n < ctx->tx_max_datagrams; n++) { + /* send any remaining skb first */ if (skb == NULL) { skb = ctx->tx_rem_skb; + sign = ctx->tx_rem_sign; ctx->tx_rem_skb = NULL; /* check for end of skb */ @@ -734,7 +685,14 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) break; } - if (skb->len > rem) { + /* get the appropriate NDP for this skb */ + ndp16 = cdc_ncm_ndp(ctx, skb_out, sign, skb->len + ctx->tx_modulus + ctx->tx_remainder); + + /* align beginning of next frame */ + cdc_ncm_align_tail(skb_out, ctx->tx_modulus, ctx->tx_remainder, ctx->tx_max); + + /* check if we had enough room left for both NDP and frame */ + if (!ndp16 || skb_out->len + skb->len > ctx->tx_max) { if (n == 0) { /* won't fit, MTU problem? */ dev_kfree_skb_any(skb); @@ -747,31 +705,30 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) ctx->netdev->stats.tx_dropped++; } ctx->tx_rem_skb = skb; + ctx->tx_rem_sign = sign; skb = NULL; ready2send = 1; } break; } - memcpy(((u8 *)skb_out->data) + offset, skb->data, skb->len); - - ctx->tx_ncm.dpe16[n].wDatagramLength = cpu_to_le16(skb->len); - ctx->tx_ncm.dpe16[n].wDatagramIndex = cpu_to_le16(offset); - - /* update offset */ - offset += skb->len; - - /* store last valid offset before alignment */ - last_offset = offset; - - /* align offset correctly */ - offset = ALIGN(offset, ctx->tx_modulus) + ctx->tx_remainder; + /* calculate frame number withing this NDP */ + ndplen = le16_to_cpu(ndp16->wLength); + index = (ndplen - sizeof(struct usb_cdc_ncm_ndp16)) / sizeof(struct usb_cdc_ncm_dpe16) - 1; - /* zero padding */ - cdc_ncm_zero_fill(skb_out->data, last_offset, offset, - ctx->tx_max); + /* OK, add this skb */ + ndp16->dpe16[index].wDatagramLength = cpu_to_le16(skb->len); + ndp16->dpe16[index].wDatagramIndex = cpu_to_le16(skb_out->len); + ndp16->wLength = cpu_to_le16(ndplen + sizeof(struct usb_cdc_ncm_dpe16)); + memcpy(skb_put(skb_out, skb->len), skb->data, skb->len); dev_kfree_skb_any(skb); skb = NULL; + + /* send now if this NDP is full */ + if (index >= CDC_NCM_DPT_DATAGRAMS_MAX) { + ready2send = 1; + break; + } } /* free up any dangling skb */ @@ -787,16 +744,12 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) /* wait for more frames */ /* push variables */ ctx->tx_curr_skb = skb_out; - ctx->tx_curr_offset = offset; - ctx->tx_curr_last_offset = last_offset; goto exit_no_skb; } else if ((n < ctx->tx_max_datagrams) && (ready2send == 0)) { /* wait for more frames */ /* push variables */ ctx->tx_curr_skb = skb_out; - ctx->tx_curr_offset = offset; - ctx->tx_curr_last_offset = last_offset; /* set the pending count */ if (n < CDC_NCM_RESTART_TIMER_DATAGRAM_CNT) ctx->tx_timer_pending = CDC_NCM_TIMER_PENDING_CNT; @@ -807,75 +760,24 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) /* variables will be reset at next call */ } - /* check for overflow */ - if (last_offset > ctx->tx_max) - last_offset = ctx->tx_max; - - /* revert offset */ - offset = last_offset; - /* * If collected data size is less or equal CDC_NCM_MIN_TX_PKT bytes, * we send buffers as it is. If we get more data, it would be more * efficient for USB HS mobile device with DMA engine to receive a full * size NTB, than canceling DMA transfer and receiving a short packet. */ - if (offset > CDC_NCM_MIN_TX_PKT) - offset = ctx->tx_max; - - /* final zero padding */ - cdc_ncm_zero_fill(skb_out->data, last_offset, offset, ctx->tx_max); - - /* store last offset */ - last_offset = offset; - - if (((last_offset < ctx->tx_max) && ((last_offset % - le16_to_cpu(ctx->out_ep->desc.wMaxPacketSize)) == 0)) || - (((last_offset == ctx->tx_max) && ((ctx->tx_max % - le16_to_cpu(ctx->out_ep->desc.wMaxPacketSize)) == 0)) && - (ctx->tx_max < le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize)))) { - /* force short packet */ - *(((u8 *)skb_out->data) + last_offset) = 0; - last_offset++; - } - - /* zero the rest of the DPEs plus the last NULL entry */ - for (; n <= CDC_NCM_DPT_DATAGRAMS_MAX; n++) { - ctx->tx_ncm.dpe16[n].wDatagramLength = 0; - ctx->tx_ncm.dpe16[n].wDatagramIndex = 0; - } + if (skb_out->len > CDC_NCM_MIN_TX_PKT) + /* final zero padding */ + memset(skb_put(skb_out, ctx->tx_max - skb_out->len), 0, ctx->tx_max - skb_out->len); - /* fill out 16-bit NTB header */ - ctx->tx_ncm.nth16.dwSignature = cpu_to_le32(USB_CDC_NCM_NTH16_SIGN); - ctx->tx_ncm.nth16.wHeaderLength = - cpu_to_le16(sizeof(ctx->tx_ncm.nth16)); - ctx->tx_ncm.nth16.wSequence = cpu_to_le16(ctx->tx_seq); - ctx->tx_ncm.nth16.wBlockLength = cpu_to_le16(last_offset); - index = ALIGN(sizeof(struct usb_cdc_ncm_nth16), ctx->tx_ndp_modulus); - ctx->tx_ncm.nth16.wNdpIndex = cpu_to_le16(index); - - memcpy(skb_out->data, &(ctx->tx_ncm.nth16), sizeof(ctx->tx_ncm.nth16)); - ctx->tx_seq++; - - /* fill out 16-bit NDP table */ - ctx->tx_ncm.ndp16.dwSignature = - cpu_to_le32(USB_CDC_NCM_NDP16_NOCRC_SIGN); - rem = sizeof(ctx->tx_ncm.ndp16) + ((ctx->tx_curr_frame_num + 1) * - sizeof(struct usb_cdc_ncm_dpe16)); - ctx->tx_ncm.ndp16.wLength = cpu_to_le16(rem); - ctx->tx_ncm.ndp16.wNextNdpIndex = 0; /* reserved */ - - memcpy(((u8 *)skb_out->data) + index, - &(ctx->tx_ncm.ndp16), - sizeof(ctx->tx_ncm.ndp16)); + /* do we need to prevent a ZLP? */ + if (((skb_out->len % le16_to_cpu(ctx->out_ep->desc.wMaxPacketSize)) == 0) && + (skb_out->len < le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize)) && skb_tailroom(skb_out)) + *skb_put(skb_out, 1) = 0; /* force short packet */ - memcpy(((u8 *)skb_out->data) + index + sizeof(ctx->tx_ncm.ndp16), - &(ctx->tx_ncm.dpe16), - (ctx->tx_curr_frame_num + 1) * - sizeof(struct usb_cdc_ncm_dpe16)); - - /* set frame length */ - skb_put(skb_out, last_offset); + /* set final frame length */ + nth16 = (struct usb_cdc_ncm_nth16 *)skb_out->data; + nth16->wBlockLength = cpu_to_le16(skb_out->len); /* return skb */ ctx->tx_curr_skb = NULL; @@ -888,6 +790,7 @@ exit_no_skb: cdc_ncm_tx_timeout_start(ctx); return NULL; } +EXPORT_SYMBOL_GPL(cdc_ncm_fill_tx_frame); static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx) { @@ -922,6 +825,8 @@ static void cdc_ncm_txpath_bh(unsigned long param) netif_tx_lock_bh(ctx->netdev); usbnet_start_xmit(NULL, ctx->netdev); netif_tx_unlock_bh(ctx->netdev); + } else { + spin_unlock_bh(&ctx->mtx); } } @@ -942,7 +847,7 @@ cdc_ncm_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) goto error; spin_lock_bh(&ctx->mtx); - skb_out = cdc_ncm_fill_tx_frame(ctx, skb); + skb_out = cdc_ncm_fill_tx_frame(ctx, skb, cpu_to_le32(USB_CDC_NCM_NDP16_NOCRC_SIGN)); spin_unlock_bh(&ctx->mtx); return skb_out; @@ -953,17 +858,12 @@ error: return NULL; } -static int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in) +/* verify NTB header and return offset of first NDP, or negative error */ +int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in) { - struct sk_buff *skb; - struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; - int len; - int nframes; - int x; - int offset; struct usb_cdc_ncm_nth16 *nth16; - struct usb_cdc_ncm_ndp16 *ndp16; - struct usb_cdc_ncm_dpe16 *dpe16; + int len; + int ret = -EINVAL; if (ctx == NULL) goto error; @@ -997,20 +897,23 @@ static int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in) } ctx->rx_seq = le16_to_cpu(nth16->wSequence); - len = le16_to_cpu(nth16->wNdpIndex); - if ((len + sizeof(struct usb_cdc_ncm_ndp16)) > skb_in->len) { - pr_debug("invalid DPT16 index <%u>\n", - le16_to_cpu(nth16->wNdpIndex)); - goto error; - } + ret = le16_to_cpu(nth16->wNdpIndex); +error: + return ret; +} +EXPORT_SYMBOL_GPL(cdc_ncm_rx_verify_nth16); - ndp16 = (struct usb_cdc_ncm_ndp16 *)(((u8 *)skb_in->data) + len); +/* verify NDP header and return number of datagrams, or negative error */ +int cdc_ncm_rx_verify_ndp16(struct sk_buff *skb_in, int ndpoffset) +{ + struct usb_cdc_ncm_ndp16 *ndp16; + int ret = -EINVAL; - if (le32_to_cpu(ndp16->dwSignature) != USB_CDC_NCM_NDP16_NOCRC_SIGN) { - pr_debug("invalid DPT16 signature <%u>\n", - le32_to_cpu(ndp16->dwSignature)); + if ((ndpoffset + sizeof(struct usb_cdc_ncm_ndp16)) > skb_in->len) { + pr_debug("invalid NDP offset <%u>\n", ndpoffset); goto error; } + ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb_in->data + ndpoffset); if (le16_to_cpu(ndp16->wLength) < USB_CDC_NCM_NDP16_LENGTH_MIN) { pr_debug("invalid DPT16 length <%u>\n", @@ -1018,20 +921,52 @@ static int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in) goto error; } - nframes = ((le16_to_cpu(ndp16->wLength) - + ret = ((le16_to_cpu(ndp16->wLength) - sizeof(struct usb_cdc_ncm_ndp16)) / sizeof(struct usb_cdc_ncm_dpe16)); - nframes--; /* we process NDP entries except for the last one */ - - len += sizeof(struct usb_cdc_ncm_ndp16); + ret--; /* we process NDP entries except for the last one */ - if ((len + nframes * (sizeof(struct usb_cdc_ncm_dpe16))) > + if ((sizeof(struct usb_cdc_ncm_ndp16) + ret * (sizeof(struct usb_cdc_ncm_dpe16))) > skb_in->len) { - pr_debug("Invalid nframes = %d\n", nframes); - goto error; + pr_debug("Invalid nframes = %d\n", ret); + ret = -EINVAL; } - dpe16 = (struct usb_cdc_ncm_dpe16 *)(((u8 *)skb_in->data) + len); +error: + return ret; +} +EXPORT_SYMBOL_GPL(cdc_ncm_rx_verify_ndp16); + +static int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in) +{ + struct sk_buff *skb; + struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; + int len; + int nframes; + int x; + int offset; + struct usb_cdc_ncm_ndp16 *ndp16; + struct usb_cdc_ncm_dpe16 *dpe16; + int ndpoffset; + int loopcount = 50; /* arbitrary max preventing infinite loop */ + + ndpoffset = cdc_ncm_rx_verify_nth16(ctx, skb_in); + if (ndpoffset < 0) + goto error; + +next_ndp: + nframes = cdc_ncm_rx_verify_ndp16(skb_in, ndpoffset); + if (nframes < 0) + goto error; + + ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb_in->data + ndpoffset); + + if (le32_to_cpu(ndp16->dwSignature) != USB_CDC_NCM_NDP16_NOCRC_SIGN) { + pr_debug("invalid DPT16 signature <%u>\n", + le32_to_cpu(ndp16->dwSignature)); + goto err_ndp; + } + dpe16 = ndp16->dpe16; for (x = 0; x < nframes; x++, dpe16++) { offset = le16_to_cpu(dpe16->wDatagramIndex); @@ -1043,7 +978,7 @@ static int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in) */ if ((offset == 0) || (len == 0)) { if (!x) - goto error; /* empty NTB */ + goto err_ndp; /* empty NTB */ break; } @@ -1054,7 +989,7 @@ static int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in) "offset[%u]=%u, length=%u, skb=%p\n", x, offset, len, skb_in); if (!x) - goto error; + goto err_ndp; break; } else { @@ -1067,6 +1002,12 @@ static int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in) usbnet_skb_return(dev, skb); } } +err_ndp: + /* are there more NDPs to process? */ + ndpoffset = le16_to_cpu(ndp16->wNextNdpIndex); + if (ndpoffset && loopcount--) + goto next_ndp; + return 1; error: return 0; @@ -1131,7 +1072,7 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb) * USB_CDC_NOTIFY_NETWORK_CONNECTION notification shall be * sent by device after USB_CDC_NOTIFY_SPEED_CHANGE. */ - ctx->connected = event->wValue; + ctx->connected = le16_to_cpu(event->wValue); printk(KERN_INFO KBUILD_MODNAME ": %s: network connection:" " %sconnected\n", diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c index e0433ce6ced7..3f554c1149f3 100644 --- a/drivers/net/usb/dm9601.c +++ b/drivers/net/usb/dm9601.c @@ -56,27 +56,12 @@ static int dm_read(struct usbnet *dev, u8 reg, u16 length, void *data) { - void *buf; - int err = -ENOMEM; - - netdev_dbg(dev->net, "dm_read() reg=0x%02x length=%d\n", reg, length); - - buf = kmalloc(length, GFP_KERNEL); - if (!buf) - goto out; - - err = usb_control_msg(dev->udev, - usb_rcvctrlpipe(dev->udev, 0), - DM_READ_REGS, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - 0, reg, buf, length, USB_CTRL_SET_TIMEOUT); - if (err == length) - memcpy(data, buf, length); - else if (err >= 0) + int err; + err = usbnet_read_cmd(dev, DM_READ_REGS, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, reg, data, length); + if(err != length && err >= 0) err = -EINVAL; - kfree(buf); - - out: return err; } @@ -87,91 +72,29 @@ static int dm_read_reg(struct usbnet *dev, u8 reg, u8 *value) static int dm_write(struct usbnet *dev, u8 reg, u16 length, void *data) { - void *buf = NULL; - int err = -ENOMEM; - - netdev_dbg(dev->net, "dm_write() reg=0x%02x, length=%d\n", reg, length); + int err; + err = usbnet_write_cmd(dev, DM_WRITE_REGS, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, reg, data, length); - if (data) { - buf = kmemdup(data, length, GFP_KERNEL); - if (!buf) - goto out; - } - - err = usb_control_msg(dev->udev, - usb_sndctrlpipe(dev->udev, 0), - DM_WRITE_REGS, - USB_DIR_OUT | USB_TYPE_VENDOR |USB_RECIP_DEVICE, - 0, reg, buf, length, USB_CTRL_SET_TIMEOUT); - kfree(buf); if (err >= 0 && err < length) err = -EINVAL; - out: return err; } static int dm_write_reg(struct usbnet *dev, u8 reg, u8 value) { - netdev_dbg(dev->net, "dm_write_reg() reg=0x%02x, value=0x%02x\n", - reg, value); - return usb_control_msg(dev->udev, - usb_sndctrlpipe(dev->udev, 0), - DM_WRITE_REG, - USB_DIR_OUT | USB_TYPE_VENDOR |USB_RECIP_DEVICE, - value, reg, NULL, 0, USB_CTRL_SET_TIMEOUT); -} - -static void dm_write_async_callback(struct urb *urb) -{ - struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; - int status = urb->status; - - if (status < 0) - printk(KERN_DEBUG "dm_write_async_callback() failed with %d\n", - status); - - kfree(req); - usb_free_urb(urb); + return usbnet_write_cmd(dev, DM_WRITE_REGS, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, reg, NULL, 0); } static void dm_write_async_helper(struct usbnet *dev, u8 reg, u8 value, u16 length, void *data) { - struct usb_ctrlrequest *req; - struct urb *urb; - int status; - - urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!urb) { - netdev_err(dev->net, "Error allocating URB in dm_write_async_helper!\n"); - return; - } - - req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); - if (!req) { - netdev_err(dev->net, "Failed to allocate memory for control request\n"); - usb_free_urb(urb); - return; - } - - req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE; - req->bRequest = length ? DM_WRITE_REGS : DM_WRITE_REG; - req->wValue = cpu_to_le16(value); - req->wIndex = cpu_to_le16(reg); - req->wLength = cpu_to_le16(length); - - usb_fill_control_urb(urb, dev->udev, - usb_sndctrlpipe(dev->udev, 0), - (void *)req, data, length, - dm_write_async_callback, req); - - status = usb_submit_urb(urb, GFP_ATOMIC); - if (status < 0) { - netdev_err(dev->net, "Error submitting the control message: status=%d\n", - status); - kfree(req); - usb_free_urb(urb); - } + usbnet_write_cmd_async(dev, DM_WRITE_REGS, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, reg, data, length); } static void dm_write_async(struct usbnet *dev, u8 reg, u16 length, void *data) diff --git a/drivers/net/usb/int51x1.c b/drivers/net/usb/int51x1.c index 8de641713d5f..ace9e74ffbdd 100644 --- a/drivers/net/usb/int51x1.c +++ b/drivers/net/usb/int51x1.c @@ -116,23 +116,8 @@ static struct sk_buff *int51x1_tx_fixup(struct usbnet *dev, return skb; } -static void int51x1_async_cmd_callback(struct urb *urb) -{ - struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; - int status = urb->status; - - if (status < 0) - dev_warn(&urb->dev->dev, "async callback failed with %d\n", status); - - kfree(req); - usb_free_urb(urb); -} - static void int51x1_set_multicast(struct net_device *netdev) { - struct usb_ctrlrequest *req; - int status; - struct urb *urb; struct usbnet *dev = netdev_priv(netdev); u16 filter = PACKET_TYPE_DIRECTED | PACKET_TYPE_BROADCAST; @@ -149,40 +134,9 @@ static void int51x1_set_multicast(struct net_device *netdev) netdev_dbg(dev->net, "receive own packets only\n"); } - urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!urb) { - netdev_warn(dev->net, "Error allocating URB\n"); - return; - } - - req = kmalloc(sizeof(*req), GFP_ATOMIC); - if (!req) { - netdev_warn(dev->net, "Error allocating control msg\n"); - goto out; - } - - req->bRequestType = USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE; - req->bRequest = SET_ETHERNET_PACKET_FILTER; - req->wValue = cpu_to_le16(filter); - req->wIndex = 0; - req->wLength = 0; - - usb_fill_control_urb(urb, dev->udev, usb_sndctrlpipe(dev->udev, 0), - (void *)req, NULL, 0, - int51x1_async_cmd_callback, - (void *)req); - - status = usb_submit_urb(urb, GFP_ATOMIC); - if (status < 0) { - netdev_warn(dev->net, "Error submitting control msg, sts=%d\n", - status); - goto out1; - } - return; -out1: - kfree(req); -out: - usb_free_urb(urb); + usbnet_write_cmd_async(dev, SET_ETHERNET_PACKET_FILTER, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + filter, 0, NULL, 0); } static const struct net_device_ops int51x1_netdev_ops = { diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c index cc7e72010ac3..3f3f566afa0b 100644 --- a/drivers/net/usb/mcs7830.c +++ b/drivers/net/usb/mcs7830.c @@ -124,93 +124,20 @@ static const char driver_name[] = "MOSCHIP usb-ethernet driver"; static int mcs7830_get_reg(struct usbnet *dev, u16 index, u16 size, void *data) { - struct usb_device *xdev = dev->udev; - int ret; - void *buffer; - - buffer = kmalloc(size, GFP_NOIO); - if (buffer == NULL) - return -ENOMEM; - - ret = usb_control_msg(xdev, usb_rcvctrlpipe(xdev, 0), MCS7830_RD_BREQ, - MCS7830_RD_BMREQ, 0x0000, index, buffer, - size, MCS7830_CTRL_TIMEOUT); - memcpy(data, buffer, size); - kfree(buffer); - - return ret; + return usbnet_read_cmd(dev, MCS7830_RD_BREQ, MCS7830_RD_BMREQ, + 0x0000, index, data, size); } static int mcs7830_set_reg(struct usbnet *dev, u16 index, u16 size, const void *data) { - struct usb_device *xdev = dev->udev; - int ret; - void *buffer; - - buffer = kmemdup(data, size, GFP_NOIO); - if (buffer == NULL) - return -ENOMEM; - - ret = usb_control_msg(xdev, usb_sndctrlpipe(xdev, 0), MCS7830_WR_BREQ, - MCS7830_WR_BMREQ, 0x0000, index, buffer, - size, MCS7830_CTRL_TIMEOUT); - kfree(buffer); - return ret; -} - -static void mcs7830_async_cmd_callback(struct urb *urb) -{ - struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; - int status = urb->status; - - if (status < 0) - printk(KERN_DEBUG "%s() failed with %d\n", - __func__, status); - - kfree(req); - usb_free_urb(urb); + return usbnet_write_cmd(dev, MCS7830_WR_BREQ, MCS7830_WR_BMREQ, + 0x0000, index, data, size); } static void mcs7830_set_reg_async(struct usbnet *dev, u16 index, u16 size, void *data) { - struct usb_ctrlrequest *req; - int ret; - struct urb *urb; - - urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!urb) { - dev_dbg(&dev->udev->dev, - "Error allocating URB in write_cmd_async!\n"); - return; - } - - req = kmalloc(sizeof *req, GFP_ATOMIC); - if (!req) { - dev_err(&dev->udev->dev, - "Failed to allocate memory for control request\n"); - goto out; - } - req->bRequestType = MCS7830_WR_BMREQ; - req->bRequest = MCS7830_WR_BREQ; - req->wValue = 0; - req->wIndex = cpu_to_le16(index); - req->wLength = cpu_to_le16(size); - - usb_fill_control_urb(urb, dev->udev, - usb_sndctrlpipe(dev->udev, 0), - (void *)req, data, size, - mcs7830_async_cmd_callback, req); - - ret = usb_submit_urb(urb, GFP_ATOMIC); - if (ret < 0) { - dev_err(&dev->udev->dev, - "Error submitting the control message: ret=%d\n", ret); - goto out; - } - return; -out: - kfree(req); - usb_free_urb(urb); + usbnet_write_cmd_async(dev, MCS7830_WR_BREQ, MCS7830_WR_BMREQ, + 0x0000, index, data, size); } static int mcs7830_hif_get_mac_address(struct usbnet *dev, unsigned char *addr) diff --git a/drivers/net/usb/net1080.c b/drivers/net/usb/net1080.c index c062a3e8295c..93e0716a118c 100644 --- a/drivers/net/usb/net1080.c +++ b/drivers/net/usb/net1080.c @@ -109,13 +109,11 @@ struct nc_trailer { static int nc_vendor_read(struct usbnet *dev, u8 req, u8 regnum, u16 *retval_ptr) { - int status = usb_control_msg(dev->udev, - usb_rcvctrlpipe(dev->udev, 0), - req, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - 0, regnum, - retval_ptr, sizeof *retval_ptr, - USB_CTRL_GET_TIMEOUT); + int status = usbnet_read_cmd(dev, req, + USB_DIR_IN | USB_TYPE_VENDOR | + USB_RECIP_DEVICE, + 0, regnum, retval_ptr, + sizeof *retval_ptr); if (status > 0) status = 0; if (!status) @@ -133,13 +131,9 @@ nc_register_read(struct usbnet *dev, u8 regnum, u16 *retval_ptr) static void nc_vendor_write(struct usbnet *dev, u8 req, u8 regnum, u16 value) { - usb_control_msg(dev->udev, - usb_sndctrlpipe(dev->udev, 0), - req, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, regnum, - NULL, 0, // data is in setup packet - USB_CTRL_SET_TIMEOUT); + usbnet_write_cmd(dev, req, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, regnum, NULL, 0); } static inline void @@ -288,37 +282,34 @@ static inline void nc_dump_ttl(struct usbnet *dev, u16 ttl) static int net1080_reset(struct usbnet *dev) { u16 usbctl, status, ttl; - u16 *vp = kmalloc(sizeof (u16), GFP_KERNEL); + u16 vp; int retval; - if (!vp) - return -ENOMEM; - // nc_dump_registers(dev); - if ((retval = nc_register_read(dev, REG_STATUS, vp)) < 0) { + if ((retval = nc_register_read(dev, REG_STATUS, &vp)) < 0) { netdev_dbg(dev->net, "can't read %s-%s status: %d\n", dev->udev->bus->bus_name, dev->udev->devpath, retval); goto done; } - status = *vp; + status = vp; nc_dump_status(dev, status); - if ((retval = nc_register_read(dev, REG_USBCTL, vp)) < 0) { + if ((retval = nc_register_read(dev, REG_USBCTL, &vp)) < 0) { netdev_dbg(dev->net, "can't read USBCTL, %d\n", retval); goto done; } - usbctl = *vp; + usbctl = vp; nc_dump_usbctl(dev, usbctl); nc_register_write(dev, REG_USBCTL, USBCTL_FLUSH_THIS | USBCTL_FLUSH_OTHER); - if ((retval = nc_register_read(dev, REG_TTL, vp)) < 0) { + if ((retval = nc_register_read(dev, REG_TTL, &vp)) < 0) { netdev_dbg(dev->net, "can't read TTL, %d\n", retval); goto done; } - ttl = *vp; + ttl = vp; // nc_dump_ttl(dev, ttl); nc_register_write(dev, REG_TTL, @@ -331,7 +322,6 @@ static int net1080_reset(struct usbnet *dev) retval = 0; done: - kfree(vp); return retval; } @@ -339,13 +329,10 @@ static int net1080_check_connect(struct usbnet *dev) { int retval; u16 status; - u16 *vp = kmalloc(sizeof (u16), GFP_KERNEL); + u16 vp; - if (!vp) - return -ENOMEM; - retval = nc_register_read(dev, REG_STATUS, vp); - status = *vp; - kfree(vp); + retval = nc_register_read(dev, REG_STATUS, &vp); + status = vp; if (retval != 0) { netdev_dbg(dev->net, "net1080_check_conn read - %d\n", retval); return retval; @@ -355,59 +342,22 @@ static int net1080_check_connect(struct usbnet *dev) return 0; } -static void nc_flush_complete(struct urb *urb) -{ - kfree(urb->context); - usb_free_urb(urb); -} - static void nc_ensure_sync(struct usbnet *dev) { - dev->frame_errors++; - if (dev->frame_errors > 5) { - struct urb *urb; - struct usb_ctrlrequest *req; - int status; - - /* Send a flush */ - urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!urb) - return; - - req = kmalloc(sizeof *req, GFP_ATOMIC); - if (!req) { - usb_free_urb(urb); - return; - } + if (++dev->frame_errors <= 5) + return; - req->bRequestType = USB_DIR_OUT - | USB_TYPE_VENDOR - | USB_RECIP_DEVICE; - req->bRequest = REQUEST_REGISTER; - req->wValue = cpu_to_le16(USBCTL_FLUSH_THIS - | USBCTL_FLUSH_OTHER); - req->wIndex = cpu_to_le16(REG_USBCTL); - req->wLength = cpu_to_le16(0); - - /* queue an async control request, we don't need - * to do anything when it finishes except clean up. - */ - usb_fill_control_urb(urb, dev->udev, - usb_sndctrlpipe(dev->udev, 0), - (unsigned char *) req, - NULL, 0, - nc_flush_complete, req); - status = usb_submit_urb(urb, GFP_ATOMIC); - if (status) { - kfree(req); - usb_free_urb(urb); - return; - } + if (usbnet_write_cmd_async(dev, REQUEST_REGISTER, + USB_DIR_OUT | USB_TYPE_VENDOR | + USB_RECIP_DEVICE, + USBCTL_FLUSH_THIS | + USBCTL_FLUSH_OTHER, + REG_USBCTL, NULL, 0)) + return; - netif_dbg(dev, rx_err, dev->net, - "flush net1080; too many framing errors\n"); - dev->frame_errors = 0; - } + netif_dbg(dev, rx_err, dev->net, + "flush net1080; too many framing errors\n"); + dev->frame_errors = 0; } static int net1080_rx_fixup(struct usbnet *dev, struct sk_buff *skb) diff --git a/drivers/net/usb/plusb.c b/drivers/net/usb/plusb.c index 4584b9a805b3..0fcc8e65a068 100644 --- a/drivers/net/usb/plusb.c +++ b/drivers/net/usb/plusb.c @@ -71,13 +71,10 @@ static inline int pl_vendor_req(struct usbnet *dev, u8 req, u8 val, u8 index) { - return usb_control_msg(dev->udev, - usb_rcvctrlpipe(dev->udev, 0), - req, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - val, index, - NULL, 0, - USB_CTRL_GET_TIMEOUT); + return usbnet_read_cmd(dev, req, + USB_DIR_IN | USB_TYPE_VENDOR | + USB_RECIP_DEVICE, + val, index, NULL, 0); } static inline int diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c index c27d27701aee..18dd4257ab17 100644 --- a/drivers/net/usb/sierra_net.c +++ b/drivers/net/usb/sierra_net.c @@ -311,10 +311,9 @@ static int sierra_net_send_cmd(struct usbnet *dev, struct sierra_net_data *priv = sierra_net_get_private(dev); int status; - status = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), - USB_CDC_SEND_ENCAPSULATED_COMMAND, - USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE, 0, - priv->ifnum, cmd, cmdlen, USB_CTRL_SET_TIMEOUT); + status = usbnet_write_cmd(dev, USB_CDC_SEND_ENCAPSULATED_COMMAND, + USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE, + 0, priv->ifnum, cmd, cmdlen); if (status != cmdlen && status != -ENODEV) netdev_err(dev->net, "Submit %s failed %d\n", cmd_name, status); @@ -340,7 +339,7 @@ static void sierra_net_set_ctx_index(struct sierra_net_data *priv, u8 ctx_ix) dev_dbg(&(priv->usbnet->udev->dev), "%s %d", __func__, ctx_ix); priv->tx_hdr_template[0] = 0x3F; priv->tx_hdr_template[1] = ctx_ix; - *((u16 *)&priv->tx_hdr_template[2]) = + *((__be16 *)&priv->tx_hdr_template[2]) = cpu_to_be16(SIERRA_NET_HIP_EXT_IP_OUT_ID); } @@ -632,32 +631,22 @@ static int sierra_net_change_mtu(struct net_device *net, int new_mtu) static int sierra_net_get_fw_attr(struct usbnet *dev, u16 *datap) { int result = 0; - u16 *attrdata; - - attrdata = kmalloc(sizeof(*attrdata), GFP_KERNEL); - if (!attrdata) - return -ENOMEM; - - result = usb_control_msg( - dev->udev, - usb_rcvctrlpipe(dev->udev, 0), - /* _u8 vendor specific request */ - SWI_USB_REQUEST_GET_FW_ATTR, - USB_DIR_IN | USB_TYPE_VENDOR, /* __u8 request type */ - 0x0000, /* __u16 value not used */ - 0x0000, /* __u16 index not used */ - attrdata, /* char *data */ - sizeof(*attrdata), /* __u16 size */ - USB_CTRL_SET_TIMEOUT); /* int timeout */ - - if (result < 0) { - kfree(attrdata); + __le16 attrdata; + + result = usbnet_read_cmd(dev, + /* _u8 vendor specific request */ + SWI_USB_REQUEST_GET_FW_ATTR, + USB_DIR_IN | USB_TYPE_VENDOR, /* __u8 request type */ + 0x0000, /* __u16 value not used */ + 0x0000, /* __u16 index not used */ + &attrdata, /* char *data */ + sizeof(attrdata) /* __u16 size */ + ); + + if (result < 0) return -EIO; - } - - *datap = le16_to_cpu(*attrdata); - kfree(attrdata); + *datap = le16_to_cpu(attrdata); return result; } diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index b77ae76f4aa8..18238060f1c0 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -26,6 +26,8 @@ #include <linux/ethtool.h> #include <linux/mii.h> #include <linux/usb.h> +#include <linux/bitrev.h> +#include <linux/crc16.h> #include <linux/crc32.h> #include <linux/usb/usbnet.h> #include <linux/slab.h> @@ -52,7 +54,15 @@ #define USB_PRODUCT_ID_LAN7500 (0x7500) #define USB_PRODUCT_ID_LAN7505 (0x7505) #define RXW_PADDING 2 -#define SUPPORTED_WAKE (WAKE_MAGIC) +#define SUPPORTED_WAKE (WAKE_PHY | WAKE_UCAST | WAKE_BCAST | \ + WAKE_MCAST | WAKE_ARP | WAKE_MAGIC) + +#define SUSPEND_SUSPEND0 (0x01) +#define SUSPEND_SUSPEND1 (0x02) +#define SUSPEND_SUSPEND2 (0x04) +#define SUSPEND_SUSPEND3 (0x08) +#define SUSPEND_ALLMODES (SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \ + SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3) #define check_warn(ret, fmt, args...) \ ({ if (ret < 0) netdev_warn(dev->net, fmt, ##args); }) @@ -71,6 +81,7 @@ struct smsc75xx_priv { struct mutex dataport_mutex; spinlock_t rfe_ctl_lock; struct work_struct set_multicast; + u8 suspend_flags; }; struct usb_context { @@ -82,96 +93,96 @@ static bool turbo_mode = true; module_param(turbo_mode, bool, 0644); MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction"); -static int __must_check smsc75xx_read_reg(struct usbnet *dev, u32 index, - u32 *data) +static int __must_check __smsc75xx_read_reg(struct usbnet *dev, u32 index, + u32 *data, int in_pm) { - u32 *buf = kmalloc(4, GFP_KERNEL); + u32 buf; int ret; + int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16); BUG_ON(!dev); - if (!buf) - return -ENOMEM; - - ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), - USB_VENDOR_REQUEST_READ_REGISTER, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - 00, index, buf, 4, USB_CTRL_GET_TIMEOUT); + if (!in_pm) + fn = usbnet_read_cmd; + else + fn = usbnet_read_cmd_nopm; + ret = fn(dev, USB_VENDOR_REQUEST_READ_REGISTER, USB_DIR_IN + | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, index, &buf, 4); if (unlikely(ret < 0)) - netdev_warn(dev->net, - "Failed to read reg index 0x%08x: %d", index, ret); + netdev_warn(dev->net, "Failed to read reg index 0x%08x: %d\n", + index, ret); - le32_to_cpus(buf); - *data = *buf; - kfree(buf); + le32_to_cpus(&buf); + *data = buf; return ret; } -static int __must_check smsc75xx_write_reg(struct usbnet *dev, u32 index, - u32 data) +static int __must_check __smsc75xx_write_reg(struct usbnet *dev, u32 index, + u32 data, int in_pm) { - u32 *buf = kmalloc(4, GFP_KERNEL); + u32 buf; int ret; + int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16); BUG_ON(!dev); - if (!buf) - return -ENOMEM; - - *buf = data; - cpu_to_le32s(buf); + if (!in_pm) + fn = usbnet_write_cmd; + else + fn = usbnet_write_cmd_nopm; - ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), - USB_VENDOR_REQUEST_WRITE_REGISTER, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - 00, index, buf, 4, USB_CTRL_SET_TIMEOUT); + buf = data; + cpu_to_le32s(&buf); + ret = fn(dev, USB_VENDOR_REQUEST_WRITE_REGISTER, USB_DIR_OUT + | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, index, &buf, 4); if (unlikely(ret < 0)) - netdev_warn(dev->net, - "Failed to write reg index 0x%08x: %d", index, ret); - - kfree(buf); + netdev_warn(dev->net, "Failed to write reg index 0x%08x: %d\n", + index, ret); return ret; } -static int smsc75xx_set_feature(struct usbnet *dev, u32 feature) +static int __must_check smsc75xx_read_reg_nopm(struct usbnet *dev, u32 index, + u32 *data) { - if (WARN_ON_ONCE(!dev)) - return -EINVAL; - - cpu_to_le32s(&feature); - - return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), - USB_REQ_SET_FEATURE, USB_RECIP_DEVICE, feature, 0, NULL, 0, - USB_CTRL_SET_TIMEOUT); + return __smsc75xx_read_reg(dev, index, data, 1); } -static int smsc75xx_clear_feature(struct usbnet *dev, u32 feature) +static int __must_check smsc75xx_write_reg_nopm(struct usbnet *dev, u32 index, + u32 data) { - if (WARN_ON_ONCE(!dev)) - return -EINVAL; + return __smsc75xx_write_reg(dev, index, data, 1); +} - cpu_to_le32s(&feature); +static int __must_check smsc75xx_read_reg(struct usbnet *dev, u32 index, + u32 *data) +{ + return __smsc75xx_read_reg(dev, index, data, 0); +} - return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), - USB_REQ_CLEAR_FEATURE, USB_RECIP_DEVICE, feature, 0, NULL, 0, - USB_CTRL_SET_TIMEOUT); +static int __must_check smsc75xx_write_reg(struct usbnet *dev, u32 index, + u32 data) +{ + return __smsc75xx_write_reg(dev, index, data, 0); } /* Loop until the read is completed with timeout * called with phy_mutex held */ -static int smsc75xx_phy_wait_not_busy(struct usbnet *dev) +static __must_check int __smsc75xx_phy_wait_not_busy(struct usbnet *dev, + int in_pm) { unsigned long start_time = jiffies; u32 val; int ret; do { - ret = smsc75xx_read_reg(dev, MII_ACCESS, &val); - check_warn_return(ret, "Error reading MII_ACCESS"); + ret = __smsc75xx_read_reg(dev, MII_ACCESS, &val, in_pm); + check_warn_return(ret, "Error reading MII_ACCESS\n"); if (!(val & MII_ACCESS_BUSY)) return 0; @@ -180,7 +191,8 @@ static int smsc75xx_phy_wait_not_busy(struct usbnet *dev) return -EIO; } -static int smsc75xx_mdio_read(struct net_device *netdev, int phy_id, int idx) +static int __smsc75xx_mdio_read(struct net_device *netdev, int phy_id, int idx, + int in_pm) { struct usbnet *dev = netdev_priv(netdev); u32 val, addr; @@ -189,8 +201,8 @@ static int smsc75xx_mdio_read(struct net_device *netdev, int phy_id, int idx) mutex_lock(&dev->phy_mutex); /* confirm MII not busy */ - ret = smsc75xx_phy_wait_not_busy(dev); - check_warn_goto_done(ret, "MII is busy in smsc75xx_mdio_read"); + ret = __smsc75xx_phy_wait_not_busy(dev, in_pm); + check_warn_goto_done(ret, "MII is busy in smsc75xx_mdio_read\n"); /* set the address, index & direction (read from PHY) */ phy_id &= dev->mii.phy_id_mask; @@ -198,14 +210,14 @@ static int smsc75xx_mdio_read(struct net_device *netdev, int phy_id, int idx) addr = ((phy_id << MII_ACCESS_PHY_ADDR_SHIFT) & MII_ACCESS_PHY_ADDR) | ((idx << MII_ACCESS_REG_ADDR_SHIFT) & MII_ACCESS_REG_ADDR) | MII_ACCESS_READ | MII_ACCESS_BUSY; - ret = smsc75xx_write_reg(dev, MII_ACCESS, addr); - check_warn_goto_done(ret, "Error writing MII_ACCESS"); + ret = __smsc75xx_write_reg(dev, MII_ACCESS, addr, in_pm); + check_warn_goto_done(ret, "Error writing MII_ACCESS\n"); - ret = smsc75xx_phy_wait_not_busy(dev); - check_warn_goto_done(ret, "Timed out reading MII reg %02X", idx); + ret = __smsc75xx_phy_wait_not_busy(dev, in_pm); + check_warn_goto_done(ret, "Timed out reading MII reg %02X\n", idx); - ret = smsc75xx_read_reg(dev, MII_DATA, &val); - check_warn_goto_done(ret, "Error reading MII_DATA"); + ret = __smsc75xx_read_reg(dev, MII_DATA, &val, in_pm); + check_warn_goto_done(ret, "Error reading MII_DATA\n"); ret = (u16)(val & 0xFFFF); @@ -214,8 +226,8 @@ done: return ret; } -static void smsc75xx_mdio_write(struct net_device *netdev, int phy_id, int idx, - int regval) +static void __smsc75xx_mdio_write(struct net_device *netdev, int phy_id, + int idx, int regval, int in_pm) { struct usbnet *dev = netdev_priv(netdev); u32 val, addr; @@ -224,12 +236,12 @@ static void smsc75xx_mdio_write(struct net_device *netdev, int phy_id, int idx, mutex_lock(&dev->phy_mutex); /* confirm MII not busy */ - ret = smsc75xx_phy_wait_not_busy(dev); - check_warn_goto_done(ret, "MII is busy in smsc75xx_mdio_write"); + ret = __smsc75xx_phy_wait_not_busy(dev, in_pm); + check_warn_goto_done(ret, "MII is busy in smsc75xx_mdio_write\n"); val = regval; - ret = smsc75xx_write_reg(dev, MII_DATA, val); - check_warn_goto_done(ret, "Error writing MII_DATA"); + ret = __smsc75xx_write_reg(dev, MII_DATA, val, in_pm); + check_warn_goto_done(ret, "Error writing MII_DATA\n"); /* set the address, index & direction (write to PHY) */ phy_id &= dev->mii.phy_id_mask; @@ -237,16 +249,39 @@ static void smsc75xx_mdio_write(struct net_device *netdev, int phy_id, int idx, addr = ((phy_id << MII_ACCESS_PHY_ADDR_SHIFT) & MII_ACCESS_PHY_ADDR) | ((idx << MII_ACCESS_REG_ADDR_SHIFT) & MII_ACCESS_REG_ADDR) | MII_ACCESS_WRITE | MII_ACCESS_BUSY; - ret = smsc75xx_write_reg(dev, MII_ACCESS, addr); - check_warn_goto_done(ret, "Error writing MII_ACCESS"); + ret = __smsc75xx_write_reg(dev, MII_ACCESS, addr, in_pm); + check_warn_goto_done(ret, "Error writing MII_ACCESS\n"); - ret = smsc75xx_phy_wait_not_busy(dev); - check_warn_goto_done(ret, "Timed out writing MII reg %02X", idx); + ret = __smsc75xx_phy_wait_not_busy(dev, in_pm); + check_warn_goto_done(ret, "Timed out writing MII reg %02X\n", idx); done: mutex_unlock(&dev->phy_mutex); } +static int smsc75xx_mdio_read_nopm(struct net_device *netdev, int phy_id, + int idx) +{ + return __smsc75xx_mdio_read(netdev, phy_id, idx, 1); +} + +static void smsc75xx_mdio_write_nopm(struct net_device *netdev, int phy_id, + int idx, int regval) +{ + __smsc75xx_mdio_write(netdev, phy_id, idx, regval, 1); +} + +static int smsc75xx_mdio_read(struct net_device *netdev, int phy_id, int idx) +{ + return __smsc75xx_mdio_read(netdev, phy_id, idx, 0); +} + +static void smsc75xx_mdio_write(struct net_device *netdev, int phy_id, int idx, + int regval) +{ + __smsc75xx_mdio_write(netdev, phy_id, idx, regval, 0); +} + static int smsc75xx_wait_eeprom(struct usbnet *dev) { unsigned long start_time = jiffies; @@ -255,7 +290,7 @@ static int smsc75xx_wait_eeprom(struct usbnet *dev) do { ret = smsc75xx_read_reg(dev, E2P_CMD, &val); - check_warn_return(ret, "Error reading E2P_CMD"); + check_warn_return(ret, "Error reading E2P_CMD\n"); if (!(val & E2P_CMD_BUSY) || (val & E2P_CMD_TIMEOUT)) break; @@ -263,7 +298,7 @@ static int smsc75xx_wait_eeprom(struct usbnet *dev) } while (!time_after(jiffies, start_time + HZ)); if (val & (E2P_CMD_TIMEOUT | E2P_CMD_BUSY)) { - netdev_warn(dev->net, "EEPROM read operation timeout"); + netdev_warn(dev->net, "EEPROM read operation timeout\n"); return -EIO; } @@ -278,7 +313,7 @@ static int smsc75xx_eeprom_confirm_not_busy(struct usbnet *dev) do { ret = smsc75xx_read_reg(dev, E2P_CMD, &val); - check_warn_return(ret, "Error reading E2P_CMD"); + check_warn_return(ret, "Error reading E2P_CMD\n"); if (!(val & E2P_CMD_BUSY)) return 0; @@ -286,7 +321,7 @@ static int smsc75xx_eeprom_confirm_not_busy(struct usbnet *dev) udelay(40); } while (!time_after(jiffies, start_time + HZ)); - netdev_warn(dev->net, "EEPROM is busy"); + netdev_warn(dev->net, "EEPROM is busy\n"); return -EIO; } @@ -306,14 +341,14 @@ static int smsc75xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length, for (i = 0; i < length; i++) { val = E2P_CMD_BUSY | E2P_CMD_READ | (offset & E2P_CMD_ADDR); ret = smsc75xx_write_reg(dev, E2P_CMD, val); - check_warn_return(ret, "Error writing E2P_CMD"); + check_warn_return(ret, "Error writing E2P_CMD\n"); ret = smsc75xx_wait_eeprom(dev); if (ret < 0) return ret; ret = smsc75xx_read_reg(dev, E2P_DATA, &val); - check_warn_return(ret, "Error reading E2P_DATA"); + check_warn_return(ret, "Error reading E2P_DATA\n"); data[i] = val & 0xFF; offset++; @@ -338,7 +373,7 @@ static int smsc75xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length, /* Issue write/erase enable command */ val = E2P_CMD_BUSY | E2P_CMD_EWEN; ret = smsc75xx_write_reg(dev, E2P_CMD, val); - check_warn_return(ret, "Error writing E2P_CMD"); + check_warn_return(ret, "Error writing E2P_CMD\n"); ret = smsc75xx_wait_eeprom(dev); if (ret < 0) @@ -349,12 +384,12 @@ static int smsc75xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length, /* Fill data register */ val = data[i]; ret = smsc75xx_write_reg(dev, E2P_DATA, val); - check_warn_return(ret, "Error writing E2P_DATA"); + check_warn_return(ret, "Error writing E2P_DATA\n"); /* Send "write" command */ val = E2P_CMD_BUSY | E2P_CMD_WRITE | (offset & E2P_CMD_ADDR); ret = smsc75xx_write_reg(dev, E2P_CMD, val); - check_warn_return(ret, "Error writing E2P_CMD"); + check_warn_return(ret, "Error writing E2P_CMD\n"); ret = smsc75xx_wait_eeprom(dev); if (ret < 0) @@ -373,7 +408,7 @@ static int smsc75xx_dataport_wait_not_busy(struct usbnet *dev) for (i = 0; i < 100; i++) { u32 dp_sel; ret = smsc75xx_read_reg(dev, DP_SEL, &dp_sel); - check_warn_return(ret, "Error reading DP_SEL"); + check_warn_return(ret, "Error reading DP_SEL\n"); if (dp_sel & DP_SEL_DPRDY) return 0; @@ -381,7 +416,7 @@ static int smsc75xx_dataport_wait_not_busy(struct usbnet *dev) udelay(40); } - netdev_warn(dev->net, "smsc75xx_dataport_wait_not_busy timed out"); + netdev_warn(dev->net, "smsc75xx_dataport_wait_not_busy timed out\n"); return -EIO; } @@ -396,28 +431,28 @@ static int smsc75xx_dataport_write(struct usbnet *dev, u32 ram_select, u32 addr, mutex_lock(&pdata->dataport_mutex); ret = smsc75xx_dataport_wait_not_busy(dev); - check_warn_goto_done(ret, "smsc75xx_dataport_write busy on entry"); + check_warn_goto_done(ret, "smsc75xx_dataport_write busy on entry\n"); ret = smsc75xx_read_reg(dev, DP_SEL, &dp_sel); - check_warn_goto_done(ret, "Error reading DP_SEL"); + check_warn_goto_done(ret, "Error reading DP_SEL\n"); dp_sel &= ~DP_SEL_RSEL; dp_sel |= ram_select; ret = smsc75xx_write_reg(dev, DP_SEL, dp_sel); - check_warn_goto_done(ret, "Error writing DP_SEL"); + check_warn_goto_done(ret, "Error writing DP_SEL\n"); for (i = 0; i < length; i++) { ret = smsc75xx_write_reg(dev, DP_ADDR, addr + i); - check_warn_goto_done(ret, "Error writing DP_ADDR"); + check_warn_goto_done(ret, "Error writing DP_ADDR\n"); ret = smsc75xx_write_reg(dev, DP_DATA, buf[i]); - check_warn_goto_done(ret, "Error writing DP_DATA"); + check_warn_goto_done(ret, "Error writing DP_DATA\n"); ret = smsc75xx_write_reg(dev, DP_CMD, DP_CMD_WRITE); - check_warn_goto_done(ret, "Error writing DP_CMD"); + check_warn_goto_done(ret, "Error writing DP_CMD\n"); ret = smsc75xx_dataport_wait_not_busy(dev); - check_warn_goto_done(ret, "smsc75xx_dataport_write timeout"); + check_warn_goto_done(ret, "smsc75xx_dataport_write timeout\n"); } done: @@ -438,14 +473,14 @@ static void smsc75xx_deferred_multicast_write(struct work_struct *param) struct usbnet *dev = pdata->dev; int ret; - netif_dbg(dev, drv, dev->net, "deferred multicast write 0x%08x", - pdata->rfe_ctl); + netif_dbg(dev, drv, dev->net, "deferred multicast write 0x%08x\n", + pdata->rfe_ctl); smsc75xx_dataport_write(dev, DP_SEL_VHF, DP_SEL_VHF_VLAN_LEN, DP_SEL_VHF_HASH_LEN, pdata->multicast_hash_table); ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); - check_warn(ret, "Error writing RFE_CRL"); + check_warn(ret, "Error writing RFE_CRL\n"); } static void smsc75xx_set_multicast(struct net_device *netdev) @@ -465,15 +500,15 @@ static void smsc75xx_set_multicast(struct net_device *netdev) pdata->multicast_hash_table[i] = 0; if (dev->net->flags & IFF_PROMISC) { - netif_dbg(dev, drv, dev->net, "promiscuous mode enabled"); + netif_dbg(dev, drv, dev->net, "promiscuous mode enabled\n"); pdata->rfe_ctl |= RFE_CTL_AM | RFE_CTL_AU; } else if (dev->net->flags & IFF_ALLMULTI) { - netif_dbg(dev, drv, dev->net, "receive all multicast enabled"); + netif_dbg(dev, drv, dev->net, "receive all multicast enabled\n"); pdata->rfe_ctl |= RFE_CTL_AM | RFE_CTL_DPF; } else if (!netdev_mc_empty(dev->net)) { struct netdev_hw_addr *ha; - netif_dbg(dev, drv, dev->net, "receive multicast hash filter"); + netif_dbg(dev, drv, dev->net, "receive multicast hash filter\n"); pdata->rfe_ctl |= RFE_CTL_MHF | RFE_CTL_DPF; @@ -483,7 +518,7 @@ static void smsc75xx_set_multicast(struct net_device *netdev) (1 << (bitnum % 32)); } } else { - netif_dbg(dev, drv, dev->net, "receive own packets only"); + netif_dbg(dev, drv, dev->net, "receive own packets only\n"); pdata->rfe_ctl |= RFE_CTL_DPF; } @@ -511,18 +546,18 @@ static int smsc75xx_update_flowcontrol(struct usbnet *dev, u8 duplex, if (cap & FLOW_CTRL_RX) flow |= FLOW_RX_FCEN; - netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s", - (cap & FLOW_CTRL_RX ? "enabled" : "disabled"), - (cap & FLOW_CTRL_TX ? "enabled" : "disabled")); + netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s\n", + (cap & FLOW_CTRL_RX ? "enabled" : "disabled"), + (cap & FLOW_CTRL_TX ? "enabled" : "disabled")); } else { - netif_dbg(dev, link, dev->net, "half duplex"); + netif_dbg(dev, link, dev->net, "half duplex\n"); } ret = smsc75xx_write_reg(dev, FLOW, flow); - check_warn_return(ret, "Error writing FLOW"); + check_warn_return(ret, "Error writing FLOW\n"); ret = smsc75xx_write_reg(dev, FCT_FLOW, fct_flow); - check_warn_return(ret, "Error writing FCT_FLOW"); + check_warn_return(ret, "Error writing FCT_FLOW\n"); return 0; } @@ -539,16 +574,15 @@ static int smsc75xx_link_reset(struct usbnet *dev) PHY_INT_SRC_CLEAR_ALL); ret = smsc75xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL); - check_warn_return(ret, "Error writing INT_STS"); + check_warn_return(ret, "Error writing INT_STS\n"); mii_check_media(mii, 1, 1); mii_ethtool_gset(&dev->mii, &ecmd); lcladv = smsc75xx_mdio_read(dev->net, mii->phy_id, MII_ADVERTISE); rmtadv = smsc75xx_mdio_read(dev->net, mii->phy_id, MII_LPA); - netif_dbg(dev, link, dev->net, "speed: %u duplex: %d lcladv: %04x" - " rmtadv: %04x", ethtool_cmd_speed(&ecmd), - ecmd.duplex, lcladv, rmtadv); + netif_dbg(dev, link, dev->net, "speed: %u duplex: %d lcladv: %04x rmtadv: %04x\n", + ethtool_cmd_speed(&ecmd), ecmd.duplex, lcladv, rmtadv); return smsc75xx_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv); } @@ -558,21 +592,21 @@ static void smsc75xx_status(struct usbnet *dev, struct urb *urb) u32 intdata; if (urb->actual_length != 4) { - netdev_warn(dev->net, - "unexpected urb length %d", urb->actual_length); + netdev_warn(dev->net, "unexpected urb length %d\n", + urb->actual_length); return; } memcpy(&intdata, urb->transfer_buffer, 4); le32_to_cpus(&intdata); - netif_dbg(dev, link, dev->net, "intdata: 0x%08X", intdata); + netif_dbg(dev, link, dev->net, "intdata: 0x%08X\n", intdata); if (intdata & INT_ENP_PHY_INT) usbnet_defer_kevent(dev, EVENT_LINK_RESET); else - netdev_warn(dev->net, - "unexpected interrupt, intdata=0x%08X", intdata); + netdev_warn(dev->net, "unexpected interrupt, intdata=0x%08X\n", + intdata); } static int smsc75xx_ethtool_get_eeprom_len(struct net_device *net) @@ -596,8 +630,8 @@ static int smsc75xx_ethtool_set_eeprom(struct net_device *netdev, struct usbnet *dev = netdev_priv(netdev); if (ee->magic != LAN75XX_EEPROM_MAGIC) { - netdev_warn(dev->net, - "EEPROM: magic value mismatch: 0x%x", ee->magic); + netdev_warn(dev->net, "EEPROM: magic value mismatch: 0x%x\n", + ee->magic); return -EINVAL; } @@ -619,8 +653,13 @@ static int smsc75xx_ethtool_set_wol(struct net_device *net, { struct usbnet *dev = netdev_priv(net); struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); + int ret; pdata->wolopts = wolinfo->wolopts & SUPPORTED_WAKE; + + ret = device_set_wakeup_enable(&dev->udev->dev, pdata->wolopts); + check_warn_return(ret, "device_set_wakeup_enable error %d\n", ret); + return 0; } @@ -657,14 +696,14 @@ static void smsc75xx_init_mac_address(struct usbnet *dev) if (is_valid_ether_addr(dev->net->dev_addr)) { /* eeprom values are valid so use them */ netif_dbg(dev, ifup, dev->net, - "MAC address read from EEPROM"); + "MAC address read from EEPROM\n"); return; } } /* no eeprom, or eeprom values are invalid. generate random MAC */ eth_hw_addr_random(dev->net); - netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr"); + netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n"); } static int smsc75xx_set_mac_address(struct usbnet *dev) @@ -674,17 +713,17 @@ static int smsc75xx_set_mac_address(struct usbnet *dev) u32 addr_hi = dev->net->dev_addr[4] | dev->net->dev_addr[5] << 8; int ret = smsc75xx_write_reg(dev, RX_ADDRH, addr_hi); - check_warn_return(ret, "Failed to write RX_ADDRH: %d", ret); + check_warn_return(ret, "Failed to write RX_ADDRH: %d\n", ret); ret = smsc75xx_write_reg(dev, RX_ADDRL, addr_lo); - check_warn_return(ret, "Failed to write RX_ADDRL: %d", ret); + check_warn_return(ret, "Failed to write RX_ADDRL: %d\n", ret); addr_hi |= ADDR_FILTX_FB_VALID; ret = smsc75xx_write_reg(dev, ADDR_FILTX, addr_hi); - check_warn_return(ret, "Failed to write ADDR_FILTX: %d", ret); + check_warn_return(ret, "Failed to write ADDR_FILTX: %d\n", ret); ret = smsc75xx_write_reg(dev, ADDR_FILTX + 4, addr_lo); - check_warn_return(ret, "Failed to write ADDR_FILTX+4: %d", ret); + check_warn_return(ret, "Failed to write ADDR_FILTX+4: %d\n", ret); return 0; } @@ -708,12 +747,12 @@ static int smsc75xx_phy_initialize(struct usbnet *dev) do { msleep(10); bmcr = smsc75xx_mdio_read(dev->net, dev->mii.phy_id, MII_BMCR); - check_warn_return(bmcr, "Error reading MII_BMCR"); + check_warn_return(bmcr, "Error reading MII_BMCR\n"); timeout++; } while ((bmcr & BMCR_RESET) && (timeout < 100)); if (timeout >= 100) { - netdev_warn(dev->net, "timeout on PHY Reset"); + netdev_warn(dev->net, "timeout on PHY Reset\n"); return -EIO; } @@ -725,14 +764,14 @@ static int smsc75xx_phy_initialize(struct usbnet *dev) /* read and write to clear phy interrupt status */ ret = smsc75xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC); - check_warn_return(ret, "Error reading PHY_INT_SRC"); + check_warn_return(ret, "Error reading PHY_INT_SRC\n"); smsc75xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_SRC, 0xffff); smsc75xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_MASK, PHY_INT_MASK_DEFAULT); mii_nway_restart(&dev->mii); - netif_dbg(dev, ifup, dev->net, "phy initialised successfully"); + netif_dbg(dev, ifup, dev->net, "phy initialised successfully\n"); return 0; } @@ -743,14 +782,14 @@ static int smsc75xx_set_rx_max_frame_length(struct usbnet *dev, int size) bool rxenabled; ret = smsc75xx_read_reg(dev, MAC_RX, &buf); - check_warn_return(ret, "Failed to read MAC_RX: %d", ret); + check_warn_return(ret, "Failed to read MAC_RX: %d\n", ret); rxenabled = ((buf & MAC_RX_RXEN) != 0); if (rxenabled) { buf &= ~MAC_RX_RXEN; ret = smsc75xx_write_reg(dev, MAC_RX, buf); - check_warn_return(ret, "Failed to write MAC_RX: %d", ret); + check_warn_return(ret, "Failed to write MAC_RX: %d\n", ret); } /* add 4 to size for FCS */ @@ -758,12 +797,12 @@ static int smsc75xx_set_rx_max_frame_length(struct usbnet *dev, int size) buf |= (((size + 4) << MAC_RX_MAX_SIZE_SHIFT) & MAC_RX_MAX_SIZE); ret = smsc75xx_write_reg(dev, MAC_RX, buf); - check_warn_return(ret, "Failed to write MAC_RX: %d", ret); + check_warn_return(ret, "Failed to write MAC_RX: %d\n", ret); if (rxenabled) { buf |= MAC_RX_RXEN; ret = smsc75xx_write_reg(dev, MAC_RX, buf); - check_warn_return(ret, "Failed to write MAC_RX: %d", ret); + check_warn_return(ret, "Failed to write MAC_RX: %d\n", ret); } return 0; @@ -774,7 +813,7 @@ static int smsc75xx_change_mtu(struct net_device *netdev, int new_mtu) struct usbnet *dev = netdev_priv(netdev); int ret = smsc75xx_set_rx_max_frame_length(dev, new_mtu); - check_warn_return(ret, "Failed to set mac rx frame length"); + check_warn_return(ret, "Failed to set mac rx frame length\n"); return usbnet_change_mtu(netdev, new_mtu); } @@ -799,19 +838,22 @@ static int smsc75xx_set_features(struct net_device *netdev, /* it's racing here! */ ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); - check_warn_return(ret, "Error writing RFE_CTL"); + check_warn_return(ret, "Error writing RFE_CTL\n"); return 0; } -static int smsc75xx_wait_ready(struct usbnet *dev) +static int smsc75xx_wait_ready(struct usbnet *dev, int in_pm) { int timeout = 0; do { u32 buf; - int ret = smsc75xx_read_reg(dev, PMT_CTL, &buf); - check_warn_return(ret, "Failed to read PMT_CTL: %d", ret); + int ret; + + ret = __smsc75xx_read_reg(dev, PMT_CTL, &buf, in_pm); + + check_warn_return(ret, "Failed to read PMT_CTL: %d\n", ret); if (buf & PMT_CTL_DEV_RDY) return 0; @@ -820,7 +862,7 @@ static int smsc75xx_wait_ready(struct usbnet *dev) timeout++; } while (timeout < 100); - netdev_warn(dev->net, "timeout waiting for device ready"); + netdev_warn(dev->net, "timeout waiting for device ready\n"); return -EIO; } @@ -830,79 +872,81 @@ static int smsc75xx_reset(struct usbnet *dev) u32 buf; int ret = 0, timeout; - netif_dbg(dev, ifup, dev->net, "entering smsc75xx_reset"); + netif_dbg(dev, ifup, dev->net, "entering smsc75xx_reset\n"); - ret = smsc75xx_wait_ready(dev); - check_warn_return(ret, "device not ready in smsc75xx_reset"); + ret = smsc75xx_wait_ready(dev, 0); + check_warn_return(ret, "device not ready in smsc75xx_reset\n"); ret = smsc75xx_read_reg(dev, HW_CFG, &buf); - check_warn_return(ret, "Failed to read HW_CFG: %d", ret); + check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret); buf |= HW_CFG_LRST; ret = smsc75xx_write_reg(dev, HW_CFG, buf); - check_warn_return(ret, "Failed to write HW_CFG: %d", ret); + check_warn_return(ret, "Failed to write HW_CFG: %d\n", ret); timeout = 0; do { msleep(10); ret = smsc75xx_read_reg(dev, HW_CFG, &buf); - check_warn_return(ret, "Failed to read HW_CFG: %d", ret); + check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret); timeout++; } while ((buf & HW_CFG_LRST) && (timeout < 100)); if (timeout >= 100) { - netdev_warn(dev->net, "timeout on completion of Lite Reset"); + netdev_warn(dev->net, "timeout on completion of Lite Reset\n"); return -EIO; } - netif_dbg(dev, ifup, dev->net, "Lite reset complete, resetting PHY"); + netif_dbg(dev, ifup, dev->net, "Lite reset complete, resetting PHY\n"); ret = smsc75xx_read_reg(dev, PMT_CTL, &buf); - check_warn_return(ret, "Failed to read PMT_CTL: %d", ret); + check_warn_return(ret, "Failed to read PMT_CTL: %d\n", ret); buf |= PMT_CTL_PHY_RST; ret = smsc75xx_write_reg(dev, PMT_CTL, buf); - check_warn_return(ret, "Failed to write PMT_CTL: %d", ret); + check_warn_return(ret, "Failed to write PMT_CTL: %d\n", ret); timeout = 0; do { msleep(10); ret = smsc75xx_read_reg(dev, PMT_CTL, &buf); - check_warn_return(ret, "Failed to read PMT_CTL: %d", ret); + check_warn_return(ret, "Failed to read PMT_CTL: %d\n", ret); timeout++; } while ((buf & PMT_CTL_PHY_RST) && (timeout < 100)); if (timeout >= 100) { - netdev_warn(dev->net, "timeout waiting for PHY Reset"); + netdev_warn(dev->net, "timeout waiting for PHY Reset\n"); return -EIO; } - netif_dbg(dev, ifup, dev->net, "PHY reset complete"); + netif_dbg(dev, ifup, dev->net, "PHY reset complete\n"); smsc75xx_init_mac_address(dev); ret = smsc75xx_set_mac_address(dev); - check_warn_return(ret, "Failed to set mac address"); + check_warn_return(ret, "Failed to set mac address\n"); - netif_dbg(dev, ifup, dev->net, "MAC Address: %pM", dev->net->dev_addr); + netif_dbg(dev, ifup, dev->net, "MAC Address: %pM\n", + dev->net->dev_addr); ret = smsc75xx_read_reg(dev, HW_CFG, &buf); - check_warn_return(ret, "Failed to read HW_CFG: %d", ret); + check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret); - netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG : 0x%08x", buf); + netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG : 0x%08x\n", + buf); buf |= HW_CFG_BIR; ret = smsc75xx_write_reg(dev, HW_CFG, buf); - check_warn_return(ret, "Failed to write HW_CFG: %d", ret); + check_warn_return(ret, "Failed to write HW_CFG: %d\n", ret); ret = smsc75xx_read_reg(dev, HW_CFG, &buf); - check_warn_return(ret, "Failed to read HW_CFG: %d", ret); + check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret); - netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG after " - "writing HW_CFG_BIR: 0x%08x", buf); + netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG after writing HW_CFG_BIR: 0x%08x\n", + buf); if (!turbo_mode) { buf = 0; @@ -915,99 +959,102 @@ static int smsc75xx_reset(struct usbnet *dev) dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE; } - netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld", - (ulong)dev->rx_urb_size); + netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld\n", + (ulong)dev->rx_urb_size); ret = smsc75xx_write_reg(dev, BURST_CAP, buf); - check_warn_return(ret, "Failed to write BURST_CAP: %d", ret); + check_warn_return(ret, "Failed to write BURST_CAP: %d\n", ret); ret = smsc75xx_read_reg(dev, BURST_CAP, &buf); - check_warn_return(ret, "Failed to read BURST_CAP: %d", ret); + check_warn_return(ret, "Failed to read BURST_CAP: %d\n", ret); netif_dbg(dev, ifup, dev->net, - "Read Value from BURST_CAP after writing: 0x%08x", buf); + "Read Value from BURST_CAP after writing: 0x%08x\n", buf); ret = smsc75xx_write_reg(dev, BULK_IN_DLY, DEFAULT_BULK_IN_DELAY); - check_warn_return(ret, "Failed to write BULK_IN_DLY: %d", ret); + check_warn_return(ret, "Failed to write BULK_IN_DLY: %d\n", ret); ret = smsc75xx_read_reg(dev, BULK_IN_DLY, &buf); - check_warn_return(ret, "Failed to read BULK_IN_DLY: %d", ret); + check_warn_return(ret, "Failed to read BULK_IN_DLY: %d\n", ret); netif_dbg(dev, ifup, dev->net, - "Read Value from BULK_IN_DLY after writing: 0x%08x", buf); + "Read Value from BULK_IN_DLY after writing: 0x%08x\n", buf); if (turbo_mode) { ret = smsc75xx_read_reg(dev, HW_CFG, &buf); - check_warn_return(ret, "Failed to read HW_CFG: %d", ret); + check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret); - netif_dbg(dev, ifup, dev->net, "HW_CFG: 0x%08x", buf); + netif_dbg(dev, ifup, dev->net, "HW_CFG: 0x%08x\n", buf); buf |= (HW_CFG_MEF | HW_CFG_BCE); ret = smsc75xx_write_reg(dev, HW_CFG, buf); - check_warn_return(ret, "Failed to write HW_CFG: %d", ret); + check_warn_return(ret, "Failed to write HW_CFG: %d\n", ret); ret = smsc75xx_read_reg(dev, HW_CFG, &buf); - check_warn_return(ret, "Failed to read HW_CFG: %d", ret); + check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret); - netif_dbg(dev, ifup, dev->net, "HW_CFG: 0x%08x", buf); + netif_dbg(dev, ifup, dev->net, "HW_CFG: 0x%08x\n", buf); } /* set FIFO sizes */ buf = (MAX_RX_FIFO_SIZE - 512) / 512; ret = smsc75xx_write_reg(dev, FCT_RX_FIFO_END, buf); - check_warn_return(ret, "Failed to write FCT_RX_FIFO_END: %d", ret); + check_warn_return(ret, "Failed to write FCT_RX_FIFO_END: %d\n", ret); - netif_dbg(dev, ifup, dev->net, "FCT_RX_FIFO_END set to 0x%08x", buf); + netif_dbg(dev, ifup, dev->net, "FCT_RX_FIFO_END set to 0x%08x\n", buf); buf = (MAX_TX_FIFO_SIZE - 512) / 512; ret = smsc75xx_write_reg(dev, FCT_TX_FIFO_END, buf); - check_warn_return(ret, "Failed to write FCT_TX_FIFO_END: %d", ret); + check_warn_return(ret, "Failed to write FCT_TX_FIFO_END: %d\n", ret); - netif_dbg(dev, ifup, dev->net, "FCT_TX_FIFO_END set to 0x%08x", buf); + netif_dbg(dev, ifup, dev->net, "FCT_TX_FIFO_END set to 0x%08x\n", buf); ret = smsc75xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL); - check_warn_return(ret, "Failed to write INT_STS: %d", ret); + check_warn_return(ret, "Failed to write INT_STS: %d\n", ret); ret = smsc75xx_read_reg(dev, ID_REV, &buf); - check_warn_return(ret, "Failed to read ID_REV: %d", ret); + check_warn_return(ret, "Failed to read ID_REV: %d\n", ret); - netif_dbg(dev, ifup, dev->net, "ID_REV = 0x%08x", buf); + netif_dbg(dev, ifup, dev->net, "ID_REV = 0x%08x\n", buf); ret = smsc75xx_read_reg(dev, E2P_CMD, &buf); - check_warn_return(ret, "Failed to read E2P_CMD: %d", ret); + check_warn_return(ret, "Failed to read E2P_CMD: %d\n", ret); /* only set default GPIO/LED settings if no EEPROM is detected */ if (!(buf & E2P_CMD_LOADED)) { ret = smsc75xx_read_reg(dev, LED_GPIO_CFG, &buf); - check_warn_return(ret, "Failed to read LED_GPIO_CFG: %d", ret); + check_warn_return(ret, "Failed to read LED_GPIO_CFG: %d\n", + ret); buf &= ~(LED_GPIO_CFG_LED2_FUN_SEL | LED_GPIO_CFG_LED10_FUN_SEL); buf |= LED_GPIO_CFG_LEDGPIO_EN | LED_GPIO_CFG_LED2_FUN_SEL; ret = smsc75xx_write_reg(dev, LED_GPIO_CFG, buf); - check_warn_return(ret, "Failed to write LED_GPIO_CFG: %d", ret); + check_warn_return(ret, "Failed to write LED_GPIO_CFG: %d\n", + ret); } ret = smsc75xx_write_reg(dev, FLOW, 0); - check_warn_return(ret, "Failed to write FLOW: %d", ret); + check_warn_return(ret, "Failed to write FLOW: %d\n", ret); ret = smsc75xx_write_reg(dev, FCT_FLOW, 0); - check_warn_return(ret, "Failed to write FCT_FLOW: %d", ret); + check_warn_return(ret, "Failed to write FCT_FLOW: %d\n", ret); /* Don't need rfe_ctl_lock during initialisation */ ret = smsc75xx_read_reg(dev, RFE_CTL, &pdata->rfe_ctl); - check_warn_return(ret, "Failed to read RFE_CTL: %d", ret); + check_warn_return(ret, "Failed to read RFE_CTL: %d\n", ret); pdata->rfe_ctl |= RFE_CTL_AB | RFE_CTL_DPF; ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); - check_warn_return(ret, "Failed to write RFE_CTL: %d", ret); + check_warn_return(ret, "Failed to write RFE_CTL: %d\n", ret); ret = smsc75xx_read_reg(dev, RFE_CTL, &pdata->rfe_ctl); - check_warn_return(ret, "Failed to read RFE_CTL: %d", ret); + check_warn_return(ret, "Failed to read RFE_CTL: %d\n", ret); - netif_dbg(dev, ifup, dev->net, "RFE_CTL set to 0x%08x", pdata->rfe_ctl); + netif_dbg(dev, ifup, dev->net, "RFE_CTL set to 0x%08x\n", + pdata->rfe_ctl); /* Enable or disable checksum offload engines */ smsc75xx_set_features(dev->net, dev->net->features); @@ -1015,69 +1062,69 @@ static int smsc75xx_reset(struct usbnet *dev) smsc75xx_set_multicast(dev->net); ret = smsc75xx_phy_initialize(dev); - check_warn_return(ret, "Failed to initialize PHY: %d", ret); + check_warn_return(ret, "Failed to initialize PHY: %d\n", ret); ret = smsc75xx_read_reg(dev, INT_EP_CTL, &buf); - check_warn_return(ret, "Failed to read INT_EP_CTL: %d", ret); + check_warn_return(ret, "Failed to read INT_EP_CTL: %d\n", ret); /* enable PHY interrupts */ buf |= INT_ENP_PHY_INT; ret = smsc75xx_write_reg(dev, INT_EP_CTL, buf); - check_warn_return(ret, "Failed to write INT_EP_CTL: %d", ret); + check_warn_return(ret, "Failed to write INT_EP_CTL: %d\n", ret); /* allow mac to detect speed and duplex from phy */ ret = smsc75xx_read_reg(dev, MAC_CR, &buf); - check_warn_return(ret, "Failed to read MAC_CR: %d", ret); + check_warn_return(ret, "Failed to read MAC_CR: %d\n", ret); buf |= (MAC_CR_ADD | MAC_CR_ASD); ret = smsc75xx_write_reg(dev, MAC_CR, buf); - check_warn_return(ret, "Failed to write MAC_CR: %d", ret); + check_warn_return(ret, "Failed to write MAC_CR: %d\n", ret); ret = smsc75xx_read_reg(dev, MAC_TX, &buf); - check_warn_return(ret, "Failed to read MAC_TX: %d", ret); + check_warn_return(ret, "Failed to read MAC_TX: %d\n", ret); buf |= MAC_TX_TXEN; ret = smsc75xx_write_reg(dev, MAC_TX, buf); - check_warn_return(ret, "Failed to write MAC_TX: %d", ret); + check_warn_return(ret, "Failed to write MAC_TX: %d\n", ret); - netif_dbg(dev, ifup, dev->net, "MAC_TX set to 0x%08x", buf); + netif_dbg(dev, ifup, dev->net, "MAC_TX set to 0x%08x\n", buf); ret = smsc75xx_read_reg(dev, FCT_TX_CTL, &buf); - check_warn_return(ret, "Failed to read FCT_TX_CTL: %d", ret); + check_warn_return(ret, "Failed to read FCT_TX_CTL: %d\n", ret); buf |= FCT_TX_CTL_EN; ret = smsc75xx_write_reg(dev, FCT_TX_CTL, buf); - check_warn_return(ret, "Failed to write FCT_TX_CTL: %d", ret); + check_warn_return(ret, "Failed to write FCT_TX_CTL: %d\n", ret); - netif_dbg(dev, ifup, dev->net, "FCT_TX_CTL set to 0x%08x", buf); + netif_dbg(dev, ifup, dev->net, "FCT_TX_CTL set to 0x%08x\n", buf); ret = smsc75xx_set_rx_max_frame_length(dev, 1514); - check_warn_return(ret, "Failed to set max rx frame length"); + check_warn_return(ret, "Failed to set max rx frame length\n"); ret = smsc75xx_read_reg(dev, MAC_RX, &buf); - check_warn_return(ret, "Failed to read MAC_RX: %d", ret); + check_warn_return(ret, "Failed to read MAC_RX: %d\n", ret); buf |= MAC_RX_RXEN; ret = smsc75xx_write_reg(dev, MAC_RX, buf); - check_warn_return(ret, "Failed to write MAC_RX: %d", ret); + check_warn_return(ret, "Failed to write MAC_RX: %d\n", ret); - netif_dbg(dev, ifup, dev->net, "MAC_RX set to 0x%08x", buf); + netif_dbg(dev, ifup, dev->net, "MAC_RX set to 0x%08x\n", buf); ret = smsc75xx_read_reg(dev, FCT_RX_CTL, &buf); - check_warn_return(ret, "Failed to read FCT_RX_CTL: %d", ret); + check_warn_return(ret, "Failed to read FCT_RX_CTL: %d\n", ret); buf |= FCT_RX_CTL_EN; ret = smsc75xx_write_reg(dev, FCT_RX_CTL, buf); - check_warn_return(ret, "Failed to write FCT_RX_CTL: %d", ret); + check_warn_return(ret, "Failed to write FCT_RX_CTL: %d\n", ret); - netif_dbg(dev, ifup, dev->net, "FCT_RX_CTL set to 0x%08x", buf); + netif_dbg(dev, ifup, dev->net, "FCT_RX_CTL set to 0x%08x\n", buf); - netif_dbg(dev, ifup, dev->net, "smsc75xx_reset, return 0"); + netif_dbg(dev, ifup, dev->net, "smsc75xx_reset, return 0\n"); return 0; } @@ -1102,14 +1149,14 @@ static int smsc75xx_bind(struct usbnet *dev, struct usb_interface *intf) printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n"); ret = usbnet_get_endpoints(dev, intf); - check_warn_return(ret, "usbnet_get_endpoints failed: %d", ret); + check_warn_return(ret, "usbnet_get_endpoints failed: %d\n", ret); dev->data[0] = (unsigned long)kzalloc(sizeof(struct smsc75xx_priv), GFP_KERNEL); pdata = (struct smsc75xx_priv *)(dev->data[0]); if (!pdata) { - netdev_warn(dev->net, "Unable to allocate smsc75xx_priv"); + netdev_warn(dev->net, "Unable to allocate smsc75xx_priv\n"); return -ENOMEM; } @@ -1134,6 +1181,7 @@ static int smsc75xx_bind(struct usbnet *dev, struct usb_interface *intf) /* Init all registers */ ret = smsc75xx_reset(dev); + check_warn_return(ret, "smsc75xx_reset error %d\n", ret); dev->net->netdev_ops = &smsc75xx_netdev_ops; dev->net->ethtool_ops = &smsc75xx_ethtool_ops; @@ -1147,172 +1195,476 @@ static void smsc75xx_unbind(struct usbnet *dev, struct usb_interface *intf) { struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); if (pdata) { - netif_dbg(dev, ifdown, dev->net, "free pdata"); + netif_dbg(dev, ifdown, dev->net, "free pdata\n"); kfree(pdata); pdata = NULL; dev->data[0] = 0; } } +static u16 smsc_crc(const u8 *buffer, size_t len) +{ + return bitrev16(crc16(0xFFFF, buffer, len)); +} + +static int smsc75xx_write_wuff(struct usbnet *dev, int filter, u32 wuf_cfg, + u32 wuf_mask1) +{ + int cfg_base = WUF_CFGX + filter * 4; + int mask_base = WUF_MASKX + filter * 16; + int ret; + + ret = smsc75xx_write_reg(dev, cfg_base, wuf_cfg); + check_warn_return(ret, "Error writing WUF_CFGX\n"); + + ret = smsc75xx_write_reg(dev, mask_base, wuf_mask1); + check_warn_return(ret, "Error writing WUF_MASKX\n"); + + ret = smsc75xx_write_reg(dev, mask_base + 4, 0); + check_warn_return(ret, "Error writing WUF_MASKX\n"); + + ret = smsc75xx_write_reg(dev, mask_base + 8, 0); + check_warn_return(ret, "Error writing WUF_MASKX\n"); + + ret = smsc75xx_write_reg(dev, mask_base + 12, 0); + check_warn_return(ret, "Error writing WUF_MASKX\n"); + + return 0; +} + +static int smsc75xx_enter_suspend0(struct usbnet *dev) +{ + struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); + u32 val; + int ret; + + ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); + check_warn_return(ret, "Error reading PMT_CTL\n"); + + val &= (~(PMT_CTL_SUS_MODE | PMT_CTL_PHY_RST)); + val |= PMT_CTL_SUS_MODE_0 | PMT_CTL_WOL_EN | PMT_CTL_WUPS; + + ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); + check_warn_return(ret, "Error writing PMT_CTL\n"); + + pdata->suspend_flags |= SUSPEND_SUSPEND0; + + return 0; +} + +static int smsc75xx_enter_suspend1(struct usbnet *dev) +{ + struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); + u32 val; + int ret; + + ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); + check_warn_return(ret, "Error reading PMT_CTL\n"); + + val &= ~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST); + val |= PMT_CTL_SUS_MODE_1; + + ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); + check_warn_return(ret, "Error writing PMT_CTL\n"); + + /* clear wol status, enable energy detection */ + val &= ~PMT_CTL_WUPS; + val |= (PMT_CTL_WUPS_ED | PMT_CTL_ED_EN); + + ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); + check_warn_return(ret, "Error writing PMT_CTL\n"); + + pdata->suspend_flags |= SUSPEND_SUSPEND1; + + return 0; +} + +static int smsc75xx_enter_suspend2(struct usbnet *dev) +{ + struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); + u32 val; + int ret; + + ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); + check_warn_return(ret, "Error reading PMT_CTL\n"); + + val &= ~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST); + val |= PMT_CTL_SUS_MODE_2; + + ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); + check_warn_return(ret, "Error writing PMT_CTL\n"); + + pdata->suspend_flags |= SUSPEND_SUSPEND2; + + return 0; +} + +static int smsc75xx_enter_suspend3(struct usbnet *dev) +{ + struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); + u32 val; + int ret; + + ret = smsc75xx_read_reg_nopm(dev, FCT_RX_CTL, &val); + check_warn_return(ret, "Error reading FCT_RX_CTL\n"); + + if (val & FCT_RX_CTL_RXUSED) { + netdev_dbg(dev->net, "rx fifo not empty in autosuspend\n"); + return -EBUSY; + } + + ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); + check_warn_return(ret, "Error reading PMT_CTL\n"); + + val &= ~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST); + val |= PMT_CTL_SUS_MODE_3 | PMT_CTL_RES_CLR_WKP_EN; + + ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); + check_warn_return(ret, "Error writing PMT_CTL\n"); + + /* clear wol status */ + val &= ~PMT_CTL_WUPS; + val |= PMT_CTL_WUPS_WOL; + + ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); + check_warn_return(ret, "Error writing PMT_CTL\n"); + + pdata->suspend_flags |= SUSPEND_SUSPEND3; + + return 0; +} + +static int smsc75xx_enable_phy_wakeup_interrupts(struct usbnet *dev, u16 mask) +{ + struct mii_if_info *mii = &dev->mii; + int ret; + + netdev_dbg(dev->net, "enabling PHY wakeup interrupts\n"); + + /* read to clear */ + ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, PHY_INT_SRC); + check_warn_return(ret, "Error reading PHY_INT_SRC\n"); + + /* enable interrupt source */ + ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, PHY_INT_MASK); + check_warn_return(ret, "Error reading PHY_INT_MASK\n"); + + ret |= mask; + + smsc75xx_mdio_write_nopm(dev->net, mii->phy_id, PHY_INT_MASK, ret); + + return 0; +} + +static int smsc75xx_link_ok_nopm(struct usbnet *dev) +{ + struct mii_if_info *mii = &dev->mii; + int ret; + + /* first, a dummy read, needed to latch some MII phys */ + ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, MII_BMSR); + check_warn_return(ret, "Error reading MII_BMSR\n"); + + ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, MII_BMSR); + check_warn_return(ret, "Error reading MII_BMSR\n"); + + return !!(ret & BMSR_LSTATUS); +} + +static int smsc75xx_autosuspend(struct usbnet *dev, u32 link_up) +{ + int ret; + + if (!netif_running(dev->net)) { + /* interface is ifconfig down so fully power down hw */ + netdev_dbg(dev->net, "autosuspend entering SUSPEND2\n"); + return smsc75xx_enter_suspend2(dev); + } + + if (!link_up) { + /* link is down so enter EDPD mode */ + netdev_dbg(dev->net, "autosuspend entering SUSPEND1\n"); + + /* enable PHY wakeup events for if cable is attached */ + ret = smsc75xx_enable_phy_wakeup_interrupts(dev, + PHY_INT_MASK_ANEG_COMP); + check_warn_return(ret, "error enabling PHY wakeup ints\n"); + + netdev_info(dev->net, "entering SUSPEND1 mode\n"); + return smsc75xx_enter_suspend1(dev); + } + + /* enable PHY wakeup events so we remote wakeup if cable is pulled */ + ret = smsc75xx_enable_phy_wakeup_interrupts(dev, + PHY_INT_MASK_LINK_DOWN); + check_warn_return(ret, "error enabling PHY wakeup ints\n"); + + netdev_dbg(dev->net, "autosuspend entering SUSPEND3\n"); + return smsc75xx_enter_suspend3(dev); +} + static int smsc75xx_suspend(struct usb_interface *intf, pm_message_t message) { struct usbnet *dev = usb_get_intfdata(intf); struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); + u32 val, link_up; int ret; - u32 val; ret = usbnet_suspend(intf, message); - check_warn_return(ret, "usbnet_suspend error"); + check_warn_goto_done(ret, "usbnet_suspend error\n"); + + if (pdata->suspend_flags) { + netdev_warn(dev->net, "error during last resume\n"); + pdata->suspend_flags = 0; + } + + /* determine if link is up using only _nopm functions */ + link_up = smsc75xx_link_ok_nopm(dev); + + if (message.event == PM_EVENT_AUTO_SUSPEND) { + ret = smsc75xx_autosuspend(dev, link_up); + goto done; + } - /* if no wol options set, enter lowest power SUSPEND2 mode */ - if (!(pdata->wolopts & SUPPORTED_WAKE)) { - netdev_info(dev->net, "entering SUSPEND2 mode"); + /* if we get this far we're not autosuspending */ + /* if no wol options set, or if link is down and we're not waking on + * PHY activity, enter lowest power SUSPEND2 mode + */ + if (!(pdata->wolopts & SUPPORTED_WAKE) || + !(link_up || (pdata->wolopts & WAKE_PHY))) { + netdev_info(dev->net, "entering SUSPEND2 mode\n"); /* disable energy detect (link up) & wake up events */ - ret = smsc75xx_read_reg(dev, WUCSR, &val); - check_warn_return(ret, "Error reading WUCSR"); + ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_goto_done(ret, "Error reading WUCSR\n"); val &= ~(WUCSR_MPEN | WUCSR_WUEN); - ret = smsc75xx_write_reg(dev, WUCSR, val); - check_warn_return(ret, "Error writing WUCSR"); + ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); + check_warn_goto_done(ret, "Error writing WUCSR\n"); - ret = smsc75xx_read_reg(dev, PMT_CTL, &val); - check_warn_return(ret, "Error reading PMT_CTL"); + ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); + check_warn_goto_done(ret, "Error reading PMT_CTL\n"); val &= ~(PMT_CTL_ED_EN | PMT_CTL_WOL_EN); - ret = smsc75xx_write_reg(dev, PMT_CTL, val); - check_warn_return(ret, "Error writing PMT_CTL"); + ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); + check_warn_goto_done(ret, "Error writing PMT_CTL\n"); - /* enter suspend2 mode */ - ret = smsc75xx_read_reg(dev, PMT_CTL, &val); - check_warn_return(ret, "Error reading PMT_CTL"); + ret = smsc75xx_enter_suspend2(dev); + goto done; + } - val &= ~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST); - val |= PMT_CTL_SUS_MODE_2; + if (pdata->wolopts & WAKE_PHY) { + ret = smsc75xx_enable_phy_wakeup_interrupts(dev, + (PHY_INT_MASK_ANEG_COMP | PHY_INT_MASK_LINK_DOWN)); + check_warn_goto_done(ret, "error enabling PHY wakeup ints\n"); - ret = smsc75xx_write_reg(dev, PMT_CTL, val); - check_warn_return(ret, "Error writing PMT_CTL"); + /* if link is down then configure EDPD and enter SUSPEND1, + * otherwise enter SUSPEND0 below + */ + if (!link_up) { + struct mii_if_info *mii = &dev->mii; + netdev_info(dev->net, "entering SUSPEND1 mode\n"); - return 0; - } + /* enable energy detect power-down mode */ + ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, + PHY_MODE_CTRL_STS); + check_warn_goto_done(ret, "Error reading PHY_MODE_CTRL_STS\n"); - if (pdata->wolopts & WAKE_MAGIC) { - /* clear any pending magic packet status */ - ret = smsc75xx_read_reg(dev, WUCSR, &val); - check_warn_return(ret, "Error reading WUCSR"); + ret |= MODE_CTRL_STS_EDPWRDOWN; - val |= WUCSR_MPR; + smsc75xx_mdio_write_nopm(dev->net, mii->phy_id, + PHY_MODE_CTRL_STS, ret); - ret = smsc75xx_write_reg(dev, WUCSR, val); - check_warn_return(ret, "Error writing WUCSR"); + /* enter SUSPEND1 mode */ + ret = smsc75xx_enter_suspend1(dev); + goto done; + } } - /* enable/disable magic packup wake */ - ret = smsc75xx_read_reg(dev, WUCSR, &val); - check_warn_return(ret, "Error reading WUCSR"); + if (pdata->wolopts & (WAKE_MCAST | WAKE_ARP)) { + int i, filter = 0; - if (pdata->wolopts & WAKE_MAGIC) { - netdev_info(dev->net, "enabling magic packet wakeup"); - val |= WUCSR_MPEN; + /* disable all filters */ + for (i = 0; i < WUF_NUM; i++) { + ret = smsc75xx_write_reg_nopm(dev, WUF_CFGX + i * 4, 0); + check_warn_goto_done(ret, "Error writing WUF_CFGX\n"); + } + + if (pdata->wolopts & WAKE_MCAST) { + const u8 mcast[] = {0x01, 0x00, 0x5E}; + netdev_info(dev->net, "enabling multicast detection\n"); + + val = WUF_CFGX_EN | WUF_CFGX_ATYPE_MULTICAST + | smsc_crc(mcast, 3); + ret = smsc75xx_write_wuff(dev, filter++, val, 0x0007); + check_warn_goto_done(ret, "Error writing wakeup filter\n"); + } + + if (pdata->wolopts & WAKE_ARP) { + const u8 arp[] = {0x08, 0x06}; + netdev_info(dev->net, "enabling ARP detection\n"); + + val = WUF_CFGX_EN | WUF_CFGX_ATYPE_ALL | (0x0C << 16) + | smsc_crc(arp, 2); + ret = smsc75xx_write_wuff(dev, filter++, val, 0x0003); + check_warn_goto_done(ret, "Error writing wakeup filter\n"); + } + + /* clear any pending pattern match packet status */ + ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_goto_done(ret, "Error reading WUCSR\n"); + + val |= WUCSR_WUFR; + + ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); + check_warn_goto_done(ret, "Error writing WUCSR\n"); + + netdev_info(dev->net, "enabling packet match detection\n"); + ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_goto_done(ret, "Error reading WUCSR\n"); + + val |= WUCSR_WUEN; + + ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); + check_warn_goto_done(ret, "Error writing WUCSR\n"); } else { - netdev_info(dev->net, "disabling magic packet wakeup"); - val &= ~WUCSR_MPEN; + netdev_info(dev->net, "disabling packet match detection\n"); + ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_goto_done(ret, "Error reading WUCSR\n"); + + val &= ~WUCSR_WUEN; + + ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); + check_warn_goto_done(ret, "Error writing WUCSR\n"); } - ret = smsc75xx_write_reg(dev, WUCSR, val); - check_warn_return(ret, "Error writing WUCSR"); + /* disable magic, bcast & unicast wakeup sources */ + ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_goto_done(ret, "Error reading WUCSR\n"); - /* enable wol wakeup source */ - ret = smsc75xx_read_reg(dev, PMT_CTL, &val); - check_warn_return(ret, "Error reading PMT_CTL"); + val &= ~(WUCSR_MPEN | WUCSR_BCST_EN | WUCSR_PFDA_EN); - val |= PMT_CTL_WOL_EN; + ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); + check_warn_goto_done(ret, "Error writing WUCSR\n"); - ret = smsc75xx_write_reg(dev, PMT_CTL, val); - check_warn_return(ret, "Error writing PMT_CTL"); + if (pdata->wolopts & WAKE_PHY) { + netdev_info(dev->net, "enabling PHY wakeup\n"); - /* enable receiver */ - ret = smsc75xx_read_reg(dev, MAC_RX, &val); - check_warn_return(ret, "Failed to read MAC_RX: %d", ret); + ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); + check_warn_goto_done(ret, "Error reading PMT_CTL\n"); - val |= MAC_RX_RXEN; + /* clear wol status, enable energy detection */ + val &= ~PMT_CTL_WUPS; + val |= (PMT_CTL_WUPS_ED | PMT_CTL_ED_EN); - ret = smsc75xx_write_reg(dev, MAC_RX, val); - check_warn_return(ret, "Failed to write MAC_RX: %d", ret); + ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); + check_warn_goto_done(ret, "Error writing PMT_CTL\n"); + } - /* some wol options are enabled, so enter SUSPEND0 */ - netdev_info(dev->net, "entering SUSPEND0 mode"); + if (pdata->wolopts & WAKE_MAGIC) { + netdev_info(dev->net, "enabling magic packet wakeup\n"); + ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_goto_done(ret, "Error reading WUCSR\n"); - ret = smsc75xx_read_reg(dev, PMT_CTL, &val); - check_warn_return(ret, "Error reading PMT_CTL"); + /* clear any pending magic packet status */ + val |= WUCSR_MPR | WUCSR_MPEN; - val &= (~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST)); - val |= PMT_CTL_SUS_MODE_0; + ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); + check_warn_goto_done(ret, "Error writing WUCSR\n"); + } - ret = smsc75xx_write_reg(dev, PMT_CTL, val); - check_warn_return(ret, "Error writing PMT_CTL"); + if (pdata->wolopts & WAKE_BCAST) { + netdev_info(dev->net, "enabling broadcast detection\n"); + ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_goto_done(ret, "Error reading WUCSR\n"); - /* clear wol status */ - val &= ~PMT_CTL_WUPS; - val |= PMT_CTL_WUPS_WOL; - ret = smsc75xx_write_reg(dev, PMT_CTL, val); - check_warn_return(ret, "Error writing PMT_CTL"); + val |= WUCSR_BCAST_FR | WUCSR_BCST_EN; - /* read back PMT_CTL */ - ret = smsc75xx_read_reg(dev, PMT_CTL, &val); - check_warn_return(ret, "Error reading PMT_CTL"); + ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); + check_warn_goto_done(ret, "Error writing WUCSR\n"); + } - smsc75xx_set_feature(dev, USB_DEVICE_REMOTE_WAKEUP); + if (pdata->wolopts & WAKE_UCAST) { + netdev_info(dev->net, "enabling unicast detection\n"); + ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_goto_done(ret, "Error reading WUCSR\n"); - return 0; + val |= WUCSR_WUFR | WUCSR_PFDA_EN; + + ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); + check_warn_goto_done(ret, "Error writing WUCSR\n"); + } + + /* enable receiver to enable frame reception */ + ret = smsc75xx_read_reg_nopm(dev, MAC_RX, &val); + check_warn_goto_done(ret, "Failed to read MAC_RX: %d\n", ret); + + val |= MAC_RX_RXEN; + + ret = smsc75xx_write_reg_nopm(dev, MAC_RX, val); + check_warn_goto_done(ret, "Failed to write MAC_RX: %d\n", ret); + + /* some wol options are enabled, so enter SUSPEND0 */ + netdev_info(dev->net, "entering SUSPEND0 mode\n"); + ret = smsc75xx_enter_suspend0(dev); + +done: + if (ret) + usbnet_resume(intf); + return ret; } static int smsc75xx_resume(struct usb_interface *intf) { struct usbnet *dev = usb_get_intfdata(intf); struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); + u8 suspend_flags = pdata->suspend_flags; int ret; u32 val; - if (pdata->wolopts & WAKE_MAGIC) { - netdev_info(dev->net, "resuming from SUSPEND0"); + netdev_dbg(dev->net, "resume suspend_flags=0x%02x\n", suspend_flags); - smsc75xx_clear_feature(dev, USB_DEVICE_REMOTE_WAKEUP); + /* do this first to ensure it's cleared even in error case */ + pdata->suspend_flags = 0; - /* Disable magic packup wake */ - ret = smsc75xx_read_reg(dev, WUCSR, &val); - check_warn_return(ret, "Error reading WUCSR"); + if (suspend_flags & SUSPEND_ALLMODES) { + /* Disable wakeup sources */ + ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_return(ret, "Error reading WUCSR\n"); - val &= ~WUCSR_MPEN; + val &= ~(WUCSR_WUEN | WUCSR_MPEN | WUCSR_PFDA_EN + | WUCSR_BCST_EN); - ret = smsc75xx_write_reg(dev, WUCSR, val); - check_warn_return(ret, "Error writing WUCSR"); + ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); + check_warn_return(ret, "Error writing WUCSR\n"); /* clear wake-up status */ - ret = smsc75xx_read_reg(dev, PMT_CTL, &val); - check_warn_return(ret, "Error reading PMT_CTL"); + ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); + check_warn_return(ret, "Error reading PMT_CTL\n"); val &= ~PMT_CTL_WOL_EN; val |= PMT_CTL_WUPS; - ret = smsc75xx_write_reg(dev, PMT_CTL, val); - check_warn_return(ret, "Error writing PMT_CTL"); - } else { - netdev_info(dev->net, "resuming from SUSPEND2"); + ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); + check_warn_return(ret, "Error writing PMT_CTL\n"); + } + + if (suspend_flags & SUSPEND_SUSPEND2) { + netdev_info(dev->net, "resuming from SUSPEND2\n"); - ret = smsc75xx_read_reg(dev, PMT_CTL, &val); - check_warn_return(ret, "Error reading PMT_CTL"); + ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); + check_warn_return(ret, "Error reading PMT_CTL\n"); val |= PMT_CTL_PHY_PWRUP; - ret = smsc75xx_write_reg(dev, PMT_CTL, val); - check_warn_return(ret, "Error writing PMT_CTL"); + ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); + check_warn_return(ret, "Error writing PMT_CTL\n"); } - ret = smsc75xx_wait_ready(dev); - check_warn_return(ret, "device not ready in smsc75xx_resume"); + ret = smsc75xx_wait_ready(dev, 1); + check_warn_return(ret, "device not ready in smsc75xx_resume\n"); return usbnet_resume(intf); } @@ -1352,7 +1704,7 @@ static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) if (unlikely(rx_cmd_a & RX_CMD_A_RED)) { netif_dbg(dev, rx_err, dev->net, - "Error rx_cmd_a=0x%08x", rx_cmd_a); + "Error rx_cmd_a=0x%08x\n", rx_cmd_a); dev->net->stats.rx_errors++; dev->net->stats.rx_dropped++; @@ -1364,7 +1716,8 @@ static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) /* ETH_FRAME_LEN + 4(CRC) + 2(COE) + 4(Vlan) */ if (unlikely(size > (ETH_FRAME_LEN + 12))) { netif_dbg(dev, rx_err, dev->net, - "size err rx_cmd_a=0x%08x", rx_cmd_a); + "size err rx_cmd_a=0x%08x\n", + rx_cmd_a); return 0; } @@ -1381,7 +1734,7 @@ static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) ax_skb = skb_clone(skb, GFP_ATOMIC); if (unlikely(!ax_skb)) { - netdev_warn(dev->net, "Error allocating skb"); + netdev_warn(dev->net, "Error allocating skb\n"); return 0; } @@ -1406,7 +1759,7 @@ static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) } if (unlikely(skb->len < 0)) { - netdev_warn(dev->net, "invalid rx length<0 %d", skb->len); + netdev_warn(dev->net, "invalid rx length<0 %d\n", skb->len); return 0; } @@ -1454,6 +1807,12 @@ static struct sk_buff *smsc75xx_tx_fixup(struct usbnet *dev, return skb; } +static int smsc75xx_manage_power(struct usbnet *dev, int on) +{ + dev->intf->needs_remote_wakeup = on; + return 0; +} + static const struct driver_info smsc75xx_info = { .description = "smsc75xx USB 2.0 Gigabit Ethernet", .bind = smsc75xx_bind, @@ -1463,6 +1822,7 @@ static const struct driver_info smsc75xx_info = { .rx_fixup = smsc75xx_rx_fixup, .tx_fixup = smsc75xx_tx_fixup, .status = smsc75xx_status, + .manage_power = smsc75xx_manage_power, .flags = FLAG_ETHER | FLAG_SEND_ZLP | FLAG_LINK_INTR, }; @@ -1490,6 +1850,7 @@ static struct usb_driver smsc75xx_driver = { .reset_resume = smsc75xx_resume, .disconnect = usbnet_disconnect, .disable_hub_initiated_lpm = 1, + .supports_autosuspend = 1, }; module_usb_driver(smsc75xx_driver); diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index 362cb8cfeb92..79d495d15546 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -26,6 +26,8 @@ #include <linux/ethtool.h> #include <linux/mii.h> #include <linux/usb.h> +#include <linux/bitrev.h> +#include <linux/crc16.h> #include <linux/crc32.h> #include <linux/usb/usbnet.h> #include <linux/slab.h> @@ -46,7 +48,12 @@ #define SMSC95XX_INTERNAL_PHY_ID (1) #define SMSC95XX_TX_OVERHEAD (8) #define SMSC95XX_TX_OVERHEAD_CSUM (12) -#define SUPPORTED_WAKE (WAKE_MAGIC) +#define SUPPORTED_WAKE (WAKE_PHY | WAKE_UCAST | WAKE_BCAST | \ + WAKE_MCAST | WAKE_ARP | WAKE_MAGIC) + +#define FEATURE_8_WAKEUP_FILTERS (0x01) +#define FEATURE_PHY_NLP_CROSSOVER (0x02) +#define FEATURE_AUTOSUSPEND (0x04) #define check_warn(ret, fmt, args...) \ ({ if (ret < 0) netdev_warn(dev->net, fmt, ##args); }) @@ -63,80 +70,98 @@ struct smsc95xx_priv { u32 hash_lo; u32 wolopts; spinlock_t mac_cr_lock; -}; - -struct usb_context { - struct usb_ctrlrequest req; - struct usbnet *dev; + u8 features; }; static bool turbo_mode = true; module_param(turbo_mode, bool, 0644); MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction"); -static int __must_check smsc95xx_read_reg(struct usbnet *dev, u32 index, - u32 *data) +static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index, + u32 *data, int in_pm) { - u32 *buf = kmalloc(4, GFP_KERNEL); + u32 buf; int ret; + int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16); BUG_ON(!dev); - if (!buf) - return -ENOMEM; - - ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), - USB_VENDOR_REQUEST_READ_REGISTER, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - 00, index, buf, 4, USB_CTRL_GET_TIMEOUT); + if (!in_pm) + fn = usbnet_read_cmd; + else + fn = usbnet_read_cmd_nopm; + ret = fn(dev, USB_VENDOR_REQUEST_READ_REGISTER, USB_DIR_IN + | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, index, &buf, 4); if (unlikely(ret < 0)) - netdev_warn(dev->net, "Failed to read register index 0x%08x\n", index); + netdev_warn(dev->net, "Failed to read reg index 0x%08x: %d\n", + index, ret); - le32_to_cpus(buf); - *data = *buf; - kfree(buf); + le32_to_cpus(&buf); + *data = buf; return ret; } -static int __must_check smsc95xx_write_reg(struct usbnet *dev, u32 index, - u32 data) +static int __must_check __smsc95xx_write_reg(struct usbnet *dev, u32 index, + u32 data, int in_pm) { - u32 *buf = kmalloc(4, GFP_KERNEL); + u32 buf; int ret; + int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16); BUG_ON(!dev); - if (!buf) - return -ENOMEM; - - *buf = data; - cpu_to_le32s(buf); + if (!in_pm) + fn = usbnet_write_cmd; + else + fn = usbnet_write_cmd_nopm; - ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), - USB_VENDOR_REQUEST_WRITE_REGISTER, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - 00, index, buf, 4, USB_CTRL_SET_TIMEOUT); + buf = data; + cpu_to_le32s(&buf); + ret = fn(dev, USB_VENDOR_REQUEST_WRITE_REGISTER, USB_DIR_OUT + | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, index, &buf, 4); if (unlikely(ret < 0)) - netdev_warn(dev->net, "Failed to write register index 0x%08x\n", index); - - kfree(buf); + netdev_warn(dev->net, "Failed to write reg index 0x%08x: %d\n", + index, ret); return ret; } +static int __must_check smsc95xx_read_reg_nopm(struct usbnet *dev, u32 index, + u32 *data) +{ + return __smsc95xx_read_reg(dev, index, data, 1); +} + +static int __must_check smsc95xx_write_reg_nopm(struct usbnet *dev, u32 index, + u32 data) +{ + return __smsc95xx_write_reg(dev, index, data, 1); +} + +static int __must_check smsc95xx_read_reg(struct usbnet *dev, u32 index, + u32 *data) +{ + return __smsc95xx_read_reg(dev, index, data, 0); +} + +static int __must_check smsc95xx_write_reg(struct usbnet *dev, u32 index, + u32 data) +{ + return __smsc95xx_write_reg(dev, index, data, 0); +} static int smsc95xx_set_feature(struct usbnet *dev, u32 feature) { if (WARN_ON_ONCE(!dev)) return -EINVAL; - cpu_to_le32s(&feature); - - return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), - USB_REQ_SET_FEATURE, USB_RECIP_DEVICE, feature, 0, NULL, 0, - USB_CTRL_SET_TIMEOUT); + return usbnet_write_cmd_nopm(dev, USB_REQ_SET_FEATURE, + USB_RECIP_DEVICE, feature, 0, + NULL, 0); } static int smsc95xx_clear_feature(struct usbnet *dev, u32 feature) @@ -144,24 +169,23 @@ static int smsc95xx_clear_feature(struct usbnet *dev, u32 feature) if (WARN_ON_ONCE(!dev)) return -EINVAL; - cpu_to_le32s(&feature); - - return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), - USB_REQ_CLEAR_FEATURE, USB_RECIP_DEVICE, feature, 0, NULL, 0, - USB_CTRL_SET_TIMEOUT); + return usbnet_write_cmd_nopm(dev, USB_REQ_CLEAR_FEATURE, + USB_RECIP_DEVICE, feature, + 0, NULL, 0); } /* Loop until the read is completed with timeout * called with phy_mutex held */ -static int __must_check smsc95xx_phy_wait_not_busy(struct usbnet *dev) +static int __must_check __smsc95xx_phy_wait_not_busy(struct usbnet *dev, + int in_pm) { unsigned long start_time = jiffies; u32 val; int ret; do { - ret = smsc95xx_read_reg(dev, MII_ADDR, &val); - check_warn_return(ret, "Error reading MII_ACCESS"); + ret = __smsc95xx_read_reg(dev, MII_ADDR, &val, in_pm); + check_warn_return(ret, "Error reading MII_ACCESS\n"); if (!(val & MII_BUSY_)) return 0; } while (!time_after(jiffies, start_time + HZ)); @@ -169,7 +193,8 @@ static int __must_check smsc95xx_phy_wait_not_busy(struct usbnet *dev) return -EIO; } -static int smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx) +static int __smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx, + int in_pm) { struct usbnet *dev = netdev_priv(netdev); u32 val, addr; @@ -178,21 +203,21 @@ static int smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx) mutex_lock(&dev->phy_mutex); /* confirm MII not busy */ - ret = smsc95xx_phy_wait_not_busy(dev); - check_warn_goto_done(ret, "MII is busy in smsc95xx_mdio_read"); + ret = __smsc95xx_phy_wait_not_busy(dev, in_pm); + check_warn_goto_done(ret, "MII is busy in smsc95xx_mdio_read\n"); /* set the address, index & direction (read from PHY) */ phy_id &= dev->mii.phy_id_mask; idx &= dev->mii.reg_num_mask; addr = (phy_id << 11) | (idx << 6) | MII_READ_ | MII_BUSY_; - ret = smsc95xx_write_reg(dev, MII_ADDR, addr); - check_warn_goto_done(ret, "Error writing MII_ADDR"); + ret = __smsc95xx_write_reg(dev, MII_ADDR, addr, in_pm); + check_warn_goto_done(ret, "Error writing MII_ADDR\n"); - ret = smsc95xx_phy_wait_not_busy(dev); - check_warn_goto_done(ret, "Timed out reading MII reg %02X", idx); + ret = __smsc95xx_phy_wait_not_busy(dev, in_pm); + check_warn_goto_done(ret, "Timed out reading MII reg %02X\n", idx); - ret = smsc95xx_read_reg(dev, MII_DATA, &val); - check_warn_goto_done(ret, "Error reading MII_DATA"); + ret = __smsc95xx_read_reg(dev, MII_DATA, &val, in_pm); + check_warn_goto_done(ret, "Error reading MII_DATA\n"); ret = (u16)(val & 0xFFFF); @@ -201,8 +226,8 @@ done: return ret; } -static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx, - int regval) +static void __smsc95xx_mdio_write(struct net_device *netdev, int phy_id, + int idx, int regval, int in_pm) { struct usbnet *dev = netdev_priv(netdev); u32 val, addr; @@ -211,27 +236,50 @@ static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx, mutex_lock(&dev->phy_mutex); /* confirm MII not busy */ - ret = smsc95xx_phy_wait_not_busy(dev); - check_warn_goto_done(ret, "MII is busy in smsc95xx_mdio_write"); + ret = __smsc95xx_phy_wait_not_busy(dev, in_pm); + check_warn_goto_done(ret, "MII is busy in smsc95xx_mdio_write\n"); val = regval; - ret = smsc95xx_write_reg(dev, MII_DATA, val); - check_warn_goto_done(ret, "Error writing MII_DATA"); + ret = __smsc95xx_write_reg(dev, MII_DATA, val, in_pm); + check_warn_goto_done(ret, "Error writing MII_DATA\n"); /* set the address, index & direction (write to PHY) */ phy_id &= dev->mii.phy_id_mask; idx &= dev->mii.reg_num_mask; addr = (phy_id << 11) | (idx << 6) | MII_WRITE_ | MII_BUSY_; - ret = smsc95xx_write_reg(dev, MII_ADDR, addr); - check_warn_goto_done(ret, "Error writing MII_ADDR"); + ret = __smsc95xx_write_reg(dev, MII_ADDR, addr, in_pm); + check_warn_goto_done(ret, "Error writing MII_ADDR\n"); - ret = smsc95xx_phy_wait_not_busy(dev); - check_warn_goto_done(ret, "Timed out writing MII reg %02X", idx); + ret = __smsc95xx_phy_wait_not_busy(dev, in_pm); + check_warn_goto_done(ret, "Timed out writing MII reg %02X\n", idx); done: mutex_unlock(&dev->phy_mutex); } +static int smsc95xx_mdio_read_nopm(struct net_device *netdev, int phy_id, + int idx) +{ + return __smsc95xx_mdio_read(netdev, phy_id, idx, 1); +} + +static void smsc95xx_mdio_write_nopm(struct net_device *netdev, int phy_id, + int idx, int regval) +{ + __smsc95xx_mdio_write(netdev, phy_id, idx, regval, 1); +} + +static int smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx) +{ + return __smsc95xx_mdio_read(netdev, phy_id, idx, 0); +} + +static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx, + int regval) +{ + __smsc95xx_mdio_write(netdev, phy_id, idx, regval, 0); +} + static int __must_check smsc95xx_wait_eeprom(struct usbnet *dev) { unsigned long start_time = jiffies; @@ -240,7 +288,7 @@ static int __must_check smsc95xx_wait_eeprom(struct usbnet *dev) do { ret = smsc95xx_read_reg(dev, E2P_CMD, &val); - check_warn_return(ret, "Error reading E2P_CMD"); + check_warn_return(ret, "Error reading E2P_CMD\n"); if (!(val & E2P_CMD_BUSY_) || (val & E2P_CMD_TIMEOUT_)) break; udelay(40); @@ -262,7 +310,7 @@ static int __must_check smsc95xx_eeprom_confirm_not_busy(struct usbnet *dev) do { ret = smsc95xx_read_reg(dev, E2P_CMD, &val); - check_warn_return(ret, "Error reading E2P_CMD"); + check_warn_return(ret, "Error reading E2P_CMD\n"); if (!(val & E2P_CMD_BUSY_)) return 0; @@ -290,14 +338,14 @@ static int smsc95xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length, for (i = 0; i < length; i++) { val = E2P_CMD_BUSY_ | E2P_CMD_READ_ | (offset & E2P_CMD_ADDR_); ret = smsc95xx_write_reg(dev, E2P_CMD, val); - check_warn_return(ret, "Error writing E2P_CMD"); + check_warn_return(ret, "Error writing E2P_CMD\n"); ret = smsc95xx_wait_eeprom(dev); if (ret < 0) return ret; ret = smsc95xx_read_reg(dev, E2P_DATA, &val); - check_warn_return(ret, "Error reading E2P_DATA"); + check_warn_return(ret, "Error reading E2P_DATA\n"); data[i] = val & 0xFF; offset++; @@ -322,7 +370,7 @@ static int smsc95xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length, /* Issue write/erase enable command */ val = E2P_CMD_BUSY_ | E2P_CMD_EWEN_; ret = smsc95xx_write_reg(dev, E2P_CMD, val); - check_warn_return(ret, "Error writing E2P_DATA"); + check_warn_return(ret, "Error writing E2P_DATA\n"); ret = smsc95xx_wait_eeprom(dev); if (ret < 0) @@ -333,12 +381,12 @@ static int smsc95xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length, /* Fill data register */ val = data[i]; ret = smsc95xx_write_reg(dev, E2P_DATA, val); - check_warn_return(ret, "Error writing E2P_DATA"); + check_warn_return(ret, "Error writing E2P_DATA\n"); /* Send "write" command */ val = E2P_CMD_BUSY_ | E2P_CMD_WRITE_ | (offset & E2P_CMD_ADDR_); ret = smsc95xx_write_reg(dev, E2P_CMD, val); - check_warn_return(ret, "Error writing E2P_CMD"); + check_warn_return(ret, "Error writing E2P_CMD\n"); ret = smsc95xx_wait_eeprom(dev); if (ret < 0) @@ -350,60 +398,20 @@ static int smsc95xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length, return 0; } -static void smsc95xx_async_cmd_callback(struct urb *urb) -{ - struct usb_context *usb_context = urb->context; - struct usbnet *dev = usb_context->dev; - int status = urb->status; - - check_warn(status, "async callback failed with %d\n", status); - - kfree(usb_context); - usb_free_urb(urb); -} - static int __must_check smsc95xx_write_reg_async(struct usbnet *dev, u16 index, u32 *data) { - struct usb_context *usb_context; - int status; - struct urb *urb; const u16 size = 4; + int ret; - urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!urb) { - netdev_warn(dev->net, "Error allocating URB\n"); - return -ENOMEM; - } - - usb_context = kmalloc(sizeof(struct usb_context), GFP_ATOMIC); - if (usb_context == NULL) { - netdev_warn(dev->net, "Error allocating control msg\n"); - usb_free_urb(urb); - return -ENOMEM; - } - - usb_context->req.bRequestType = - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE; - usb_context->req.bRequest = USB_VENDOR_REQUEST_WRITE_REGISTER; - usb_context->req.wValue = 00; - usb_context->req.wIndex = cpu_to_le16(index); - usb_context->req.wLength = cpu_to_le16(size); - - usb_fill_control_urb(urb, dev->udev, usb_sndctrlpipe(dev->udev, 0), - (void *)&usb_context->req, data, size, - smsc95xx_async_cmd_callback, - (void *)usb_context); - - status = usb_submit_urb(urb, GFP_ATOMIC); - if (status < 0) { - netdev_warn(dev->net, "Error submitting control msg, sts=%d\n", - status); - kfree(usb_context); - usb_free_urb(urb); - } - - return status; + ret = usbnet_write_cmd_async(dev, USB_VENDOR_REQUEST_WRITE_REGISTER, + USB_DIR_OUT | USB_TYPE_VENDOR | + USB_RECIP_DEVICE, + 0, index, data, size); + if (ret < 0) + netdev_warn(dev->net, "Error write async cmd, sts=%d\n", + ret); + return ret; } /* returns hash bit number for given MAC address @@ -461,13 +469,13 @@ static void smsc95xx_set_multicast(struct net_device *netdev) /* Initiate async writes, as we can't wait for completion here */ ret = smsc95xx_write_reg_async(dev, HASHH, &pdata->hash_hi); - check_warn(ret, "failed to initiate async write to HASHH"); + check_warn(ret, "failed to initiate async write to HASHH\n"); ret = smsc95xx_write_reg_async(dev, HASHL, &pdata->hash_lo); - check_warn(ret, "failed to initiate async write to HASHL"); + check_warn(ret, "failed to initiate async write to HASHL\n"); ret = smsc95xx_write_reg_async(dev, MAC_CR, &pdata->mac_cr); - check_warn(ret, "failed to initiate async write to MAC_CR"); + check_warn(ret, "failed to initiate async write to MAC_CR\n"); } static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex, @@ -476,7 +484,7 @@ static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex, u32 flow, afc_cfg = 0; int ret = smsc95xx_read_reg(dev, AFC_CFG, &afc_cfg); - check_warn_return(ret, "Error reading AFC_CFG"); + check_warn_return(ret, "Error reading AFC_CFG\n"); if (duplex == DUPLEX_FULL) { u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv); @@ -501,10 +509,10 @@ static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex, } ret = smsc95xx_write_reg(dev, FLOW, flow); - check_warn_return(ret, "Error writing FLOW"); + check_warn_return(ret, "Error writing FLOW\n"); ret = smsc95xx_write_reg(dev, AFC_CFG, afc_cfg); - check_warn_return(ret, "Error writing AFC_CFG"); + check_warn_return(ret, "Error writing AFC_CFG\n"); return 0; } @@ -520,10 +528,10 @@ static int smsc95xx_link_reset(struct usbnet *dev) /* clear interrupt status */ ret = smsc95xx_mdio_read(dev->net, mii->phy_id, PHY_INT_SRC); - check_warn_return(ret, "Error reading PHY_INT_SRC"); + check_warn_return(ret, "Error reading PHY_INT_SRC\n"); ret = smsc95xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_); - check_warn_return(ret, "Error writing INT_STS"); + check_warn_return(ret, "Error writing INT_STS\n"); mii_check_media(mii, 1, 1); mii_ethtool_gset(&dev->mii, &ecmd); @@ -545,10 +553,10 @@ static int smsc95xx_link_reset(struct usbnet *dev) spin_unlock_irqrestore(&pdata->mac_cr_lock, flags); ret = smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr); - check_warn_return(ret, "Error writing MAC_CR"); + check_warn_return(ret, "Error writing MAC_CR\n"); ret = smsc95xx_phy_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv); - check_warn_return(ret, "Error updating PHY flow control"); + check_warn_return(ret, "Error updating PHY flow control\n"); return 0; } @@ -765,7 +773,7 @@ static int smsc95xx_start_tx_path(struct usbnet *dev) } /* Starts the Receive path */ -static int smsc95xx_start_rx_path(struct usbnet *dev) +static int smsc95xx_start_rx_path(struct usbnet *dev, int in_pm) { struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); unsigned long flags; @@ -775,7 +783,7 @@ static int smsc95xx_start_rx_path(struct usbnet *dev) pdata->mac_cr |= MAC_CR_RXEN_; spin_unlock_irqrestore(&pdata->mac_cr_lock, flags); - ret = smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr); + ret = __smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr, in_pm); check_warn_return(ret, "Failed to write MAC_CR: %d\n", ret); return 0; @@ -813,7 +821,7 @@ static int smsc95xx_phy_initialize(struct usbnet *dev) /* read to clear */ ret = smsc95xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC); - check_warn_return(ret, "Failed to read PHY_INT_SRC during init"); + check_warn_return(ret, "Failed to read PHY_INT_SRC during init\n"); smsc95xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_MASK, PHY_INT_MASK_DEFAULT_); @@ -867,14 +875,14 @@ static int smsc95xx_reset(struct usbnet *dev) if (ret < 0) return ret; - netif_dbg(dev, ifup, dev->net, - "MAC Address: %pM\n", dev->net->dev_addr); + netif_dbg(dev, ifup, dev->net, "MAC Address: %pM\n", + dev->net->dev_addr); ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf); check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret); - netif_dbg(dev, ifup, dev->net, - "Read Value from HW_CFG : 0x%08x\n", read_buf); + netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG : 0x%08x\n", + read_buf); read_buf |= HW_CFG_BIR_; @@ -898,8 +906,8 @@ static int smsc95xx_reset(struct usbnet *dev) dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE; } - netif_dbg(dev, ifup, dev->net, - "rx_urb_size=%ld\n", (ulong)dev->rx_urb_size); + netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld\n", + (ulong)dev->rx_urb_size); ret = smsc95xx_write_reg(dev, BURST_CAP, burst_cap); check_warn_return(ret, "Failed to write BURST_CAP: %d\n", ret); @@ -924,8 +932,8 @@ static int smsc95xx_reset(struct usbnet *dev) ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf); check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret); - netif_dbg(dev, ifup, dev->net, - "Read Value from HW_CFG: 0x%08x\n", read_buf); + netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG: 0x%08x\n", + read_buf); if (turbo_mode) read_buf |= (HW_CFG_MEF_ | HW_CFG_BCE_); @@ -975,12 +983,12 @@ static int smsc95xx_reset(struct usbnet *dev) /* Enable or disable checksum offload engines */ ret = smsc95xx_set_features(dev->net, dev->net->features); - check_warn_return(ret, "Failed to set checksum offload features"); + check_warn_return(ret, "Failed to set checksum offload features\n"); smsc95xx_set_multicast(dev->net); ret = smsc95xx_phy_initialize(dev); - check_warn_return(ret, "Failed to init PHY"); + check_warn_return(ret, "Failed to init PHY\n"); ret = smsc95xx_read_reg(dev, INT_EP_CTL, &read_buf); check_warn_return(ret, "Failed to read INT_EP_CTL: %d\n", ret); @@ -992,10 +1000,10 @@ static int smsc95xx_reset(struct usbnet *dev) check_warn_return(ret, "Failed to write INT_EP_CTL: %d\n", ret); ret = smsc95xx_start_tx_path(dev); - check_warn_return(ret, "Failed to start TX path"); + check_warn_return(ret, "Failed to start TX path\n"); - ret = smsc95xx_start_rx_path(dev); - check_warn_return(ret, "Failed to start RX path"); + ret = smsc95xx_start_rx_path(dev, 0); + check_warn_return(ret, "Failed to start RX path\n"); netif_dbg(dev, ifup, dev->net, "smsc95xx_reset, return 0\n"); return 0; @@ -1017,6 +1025,7 @@ static const struct net_device_ops smsc95xx_netdev_ops = { static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf) { struct smsc95xx_priv *pdata = NULL; + u32 val; int ret; printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n"); @@ -1047,6 +1056,19 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf) /* Init all registers */ ret = smsc95xx_reset(dev); + /* detect device revision as different features may be available */ + ret = smsc95xx_read_reg(dev, ID_REV, &val); + check_warn_return(ret, "Failed to read ID_REV: %d\n", ret); + val >>= 16; + + if ((val == ID_REV_CHIP_ID_9500A_) || (val == ID_REV_CHIP_ID_9530_) || + (val == ID_REV_CHIP_ID_89530_) || (val == ID_REV_CHIP_ID_9730_)) + pdata->features = (FEATURE_8_WAKEUP_FILTERS | + FEATURE_PHY_NLP_CROSSOVER | + FEATURE_AUTOSUSPEND); + else if (val == ID_REV_CHIP_ID_9512_) + pdata->features = FEATURE_8_WAKEUP_FILTERS; + dev->net->netdev_ops = &smsc95xx_netdev_ops; dev->net->ethtool_ops = &smsc95xx_ethtool_ops; dev->net->flags |= IFF_MULTICAST; @@ -1066,113 +1088,349 @@ static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf) } } +static u16 smsc_crc(const u8 *buffer, size_t len, int filter) +{ + return bitrev16(crc16(0xFFFF, buffer, len)) << ((filter % 2) * 16); +} + +static int smsc95xx_enable_phy_wakeup_interrupts(struct usbnet *dev, u16 mask) +{ + struct mii_if_info *mii = &dev->mii; + int ret; + + netdev_dbg(dev->net, "enabling PHY wakeup interrupts\n"); + + /* read to clear */ + ret = smsc95xx_mdio_read_nopm(dev->net, mii->phy_id, PHY_INT_SRC); + check_warn_return(ret, "Error reading PHY_INT_SRC\n"); + + /* enable interrupt source */ + ret = smsc95xx_mdio_read_nopm(dev->net, mii->phy_id, PHY_INT_MASK); + check_warn_return(ret, "Error reading PHY_INT_MASK\n"); + + ret |= mask; + + smsc95xx_mdio_write_nopm(dev->net, mii->phy_id, PHY_INT_MASK, ret); + + return 0; +} + +static int smsc95xx_link_ok_nopm(struct usbnet *dev) +{ + struct mii_if_info *mii = &dev->mii; + int ret; + + /* first, a dummy read, needed to latch some MII phys */ + ret = smsc95xx_mdio_read_nopm(dev->net, mii->phy_id, MII_BMSR); + check_warn_return(ret, "Error reading MII_BMSR\n"); + + ret = smsc95xx_mdio_read_nopm(dev->net, mii->phy_id, MII_BMSR); + check_warn_return(ret, "Error reading MII_BMSR\n"); + + return !!(ret & BMSR_LSTATUS); +} + +static int smsc95xx_enter_suspend0(struct usbnet *dev) +{ + struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); + u32 val; + int ret; + + ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + check_warn_return(ret, "Error reading PM_CTRL\n"); + + val &= (~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_)); + val |= PM_CTL_SUS_MODE_0; + + ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + check_warn_return(ret, "Error writing PM_CTRL\n"); + + /* clear wol status */ + val &= ~PM_CTL_WUPS_; + val |= PM_CTL_WUPS_WOL_; + + /* enable energy detection */ + if (pdata->wolopts & WAKE_PHY) + val |= PM_CTL_WUPS_ED_; + + ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + check_warn_return(ret, "Error writing PM_CTRL\n"); + + /* read back PM_CTRL */ + ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + check_warn_return(ret, "Error reading PM_CTRL\n"); + + smsc95xx_set_feature(dev, USB_DEVICE_REMOTE_WAKEUP); + + return 0; +} + +static int smsc95xx_enter_suspend1(struct usbnet *dev) +{ + struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); + struct mii_if_info *mii = &dev->mii; + u32 val; + int ret; + + /* reconfigure link pulse detection timing for + * compatibility with non-standard link partners + */ + if (pdata->features & FEATURE_PHY_NLP_CROSSOVER) + smsc95xx_mdio_write_nopm(dev->net, mii->phy_id, PHY_EDPD_CONFIG, + PHY_EDPD_CONFIG_DEFAULT); + + /* enable energy detect power-down mode */ + ret = smsc95xx_mdio_read_nopm(dev->net, mii->phy_id, PHY_MODE_CTRL_STS); + check_warn_return(ret, "Error reading PHY_MODE_CTRL_STS\n"); + + ret |= MODE_CTRL_STS_EDPWRDOWN_; + + smsc95xx_mdio_write_nopm(dev->net, mii->phy_id, PHY_MODE_CTRL_STS, ret); + + /* enter SUSPEND1 mode */ + ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + check_warn_return(ret, "Error reading PM_CTRL\n"); + + val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_); + val |= PM_CTL_SUS_MODE_1; + + ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + check_warn_return(ret, "Error writing PM_CTRL\n"); + + /* clear wol status, enable energy detection */ + val &= ~PM_CTL_WUPS_; + val |= (PM_CTL_WUPS_ED_ | PM_CTL_ED_EN_); + + ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + check_warn_return(ret, "Error writing PM_CTRL\n"); + + smsc95xx_set_feature(dev, USB_DEVICE_REMOTE_WAKEUP); + + return 0; +} + +static int smsc95xx_enter_suspend2(struct usbnet *dev) +{ + u32 val; + int ret; + + ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + check_warn_return(ret, "Error reading PM_CTRL\n"); + + val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_); + val |= PM_CTL_SUS_MODE_2; + + ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + check_warn_return(ret, "Error writing PM_CTRL\n"); + + return 0; +} + static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message) { struct usbnet *dev = usb_get_intfdata(intf); struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); + u32 val, link_up; int ret; - u32 val; ret = usbnet_suspend(intf, message); - check_warn_return(ret, "usbnet_suspend error"); + check_warn_return(ret, "usbnet_suspend error\n"); + + /* determine if link is up using only _nopm functions */ + link_up = smsc95xx_link_ok_nopm(dev); - /* if no wol options set, enter lowest power SUSPEND2 mode */ - if (!(pdata->wolopts & SUPPORTED_WAKE)) { - netdev_info(dev->net, "entering SUSPEND2 mode"); + /* if no wol options set, or if link is down and we're not waking on + * PHY activity, enter lowest power SUSPEND2 mode + */ + if (!(pdata->wolopts & SUPPORTED_WAKE) || + !(link_up || (pdata->wolopts & WAKE_PHY))) { + netdev_info(dev->net, "entering SUSPEND2 mode\n"); /* disable energy detect (link up) & wake up events */ - ret = smsc95xx_read_reg(dev, WUCSR, &val); - check_warn_return(ret, "Error reading WUCSR"); + ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_return(ret, "Error reading WUCSR\n"); val &= ~(WUCSR_MPEN_ | WUCSR_WAKE_EN_); - ret = smsc95xx_write_reg(dev, WUCSR, val); - check_warn_return(ret, "Error writing WUCSR"); + ret = smsc95xx_write_reg_nopm(dev, WUCSR, val); + check_warn_return(ret, "Error writing WUCSR\n"); - ret = smsc95xx_read_reg(dev, PM_CTRL, &val); - check_warn_return(ret, "Error reading PM_CTRL"); + ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + check_warn_return(ret, "Error reading PM_CTRL\n"); val &= ~(PM_CTL_ED_EN_ | PM_CTL_WOL_EN_); - ret = smsc95xx_write_reg(dev, PM_CTRL, val); - check_warn_return(ret, "Error writing PM_CTRL"); + ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + check_warn_return(ret, "Error writing PM_CTRL\n"); - /* enter suspend2 mode */ - ret = smsc95xx_read_reg(dev, PM_CTRL, &val); - check_warn_return(ret, "Error reading PM_CTRL"); + return smsc95xx_enter_suspend2(dev); + } - val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_); - val |= PM_CTL_SUS_MODE_2; + if (pdata->wolopts & WAKE_PHY) { + ret = smsc95xx_enable_phy_wakeup_interrupts(dev, + (PHY_INT_MASK_ANEG_COMP_ | PHY_INT_MASK_LINK_DOWN_)); + check_warn_return(ret, "error enabling PHY wakeup ints\n"); + + /* if link is down then configure EDPD and enter SUSPEND1, + * otherwise enter SUSPEND0 below + */ + if (!link_up) { + netdev_info(dev->net, "entering SUSPEND1 mode\n"); + return smsc95xx_enter_suspend1(dev); + } + } - ret = smsc95xx_write_reg(dev, PM_CTRL, val); - check_warn_return(ret, "Error writing PM_CTRL"); + if (pdata->wolopts & (WAKE_BCAST | WAKE_MCAST | WAKE_ARP | WAKE_UCAST)) { + u32 *filter_mask = kzalloc(32, GFP_KERNEL); + u32 command[2]; + u32 offset[2]; + u32 crc[4]; + int wuff_filter_count = + (pdata->features & FEATURE_8_WAKEUP_FILTERS) ? + LAN9500A_WUFF_NUM : LAN9500_WUFF_NUM; + int i, filter = 0; + + memset(command, 0, sizeof(command)); + memset(offset, 0, sizeof(offset)); + memset(crc, 0, sizeof(crc)); + + if (pdata->wolopts & WAKE_BCAST) { + const u8 bcast[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; + netdev_info(dev->net, "enabling broadcast detection\n"); + filter_mask[filter * 4] = 0x003F; + filter_mask[filter * 4 + 1] = 0x00; + filter_mask[filter * 4 + 2] = 0x00; + filter_mask[filter * 4 + 3] = 0x00; + command[filter/4] |= 0x05UL << ((filter % 4) * 8); + offset[filter/4] |= 0x00 << ((filter % 4) * 8); + crc[filter/2] |= smsc_crc(bcast, 6, filter); + filter++; + } - return 0; + if (pdata->wolopts & WAKE_MCAST) { + const u8 mcast[] = {0x01, 0x00, 0x5E}; + netdev_info(dev->net, "enabling multicast detection\n"); + filter_mask[filter * 4] = 0x0007; + filter_mask[filter * 4 + 1] = 0x00; + filter_mask[filter * 4 + 2] = 0x00; + filter_mask[filter * 4 + 3] = 0x00; + command[filter/4] |= 0x09UL << ((filter % 4) * 8); + offset[filter/4] |= 0x00 << ((filter % 4) * 8); + crc[filter/2] |= smsc_crc(mcast, 3, filter); + filter++; + } + + if (pdata->wolopts & WAKE_ARP) { + const u8 arp[] = {0x08, 0x06}; + netdev_info(dev->net, "enabling ARP detection\n"); + filter_mask[filter * 4] = 0x0003; + filter_mask[filter * 4 + 1] = 0x00; + filter_mask[filter * 4 + 2] = 0x00; + filter_mask[filter * 4 + 3] = 0x00; + command[filter/4] |= 0x05UL << ((filter % 4) * 8); + offset[filter/4] |= 0x0C << ((filter % 4) * 8); + crc[filter/2] |= smsc_crc(arp, 2, filter); + filter++; + } + + if (pdata->wolopts & WAKE_UCAST) { + netdev_info(dev->net, "enabling unicast detection\n"); + filter_mask[filter * 4] = 0x003F; + filter_mask[filter * 4 + 1] = 0x00; + filter_mask[filter * 4 + 2] = 0x00; + filter_mask[filter * 4 + 3] = 0x00; + command[filter/4] |= 0x01UL << ((filter % 4) * 8); + offset[filter/4] |= 0x00 << ((filter % 4) * 8); + crc[filter/2] |= smsc_crc(dev->net->dev_addr, ETH_ALEN, filter); + filter++; + } + + for (i = 0; i < (wuff_filter_count * 4); i++) { + ret = smsc95xx_write_reg_nopm(dev, WUFF, filter_mask[i]); + if (ret < 0) + kfree(filter_mask); + check_warn_return(ret, "Error writing WUFF\n"); + } + kfree(filter_mask); + + for (i = 0; i < (wuff_filter_count / 4); i++) { + ret = smsc95xx_write_reg_nopm(dev, WUFF, command[i]); + check_warn_return(ret, "Error writing WUFF\n"); + } + + for (i = 0; i < (wuff_filter_count / 4); i++) { + ret = smsc95xx_write_reg_nopm(dev, WUFF, offset[i]); + check_warn_return(ret, "Error writing WUFF\n"); + } + + for (i = 0; i < (wuff_filter_count / 2); i++) { + ret = smsc95xx_write_reg_nopm(dev, WUFF, crc[i]); + check_warn_return(ret, "Error writing WUFF\n"); + } + + /* clear any pending pattern match packet status */ + ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_return(ret, "Error reading WUCSR\n"); + + val |= WUCSR_WUFR_; + + ret = smsc95xx_write_reg_nopm(dev, WUCSR, val); + check_warn_return(ret, "Error writing WUCSR\n"); } if (pdata->wolopts & WAKE_MAGIC) { /* clear any pending magic packet status */ - ret = smsc95xx_read_reg(dev, WUCSR, &val); - check_warn_return(ret, "Error reading WUCSR"); + ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_return(ret, "Error reading WUCSR\n"); val |= WUCSR_MPR_; - ret = smsc95xx_write_reg(dev, WUCSR, val); - check_warn_return(ret, "Error writing WUCSR"); + ret = smsc95xx_write_reg_nopm(dev, WUCSR, val); + check_warn_return(ret, "Error writing WUCSR\n"); } - /* enable/disable magic packup wake */ - ret = smsc95xx_read_reg(dev, WUCSR, &val); - check_warn_return(ret, "Error reading WUCSR"); + /* enable/disable wakeup sources */ + ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_return(ret, "Error reading WUCSR\n"); + + if (pdata->wolopts & (WAKE_BCAST | WAKE_MCAST | WAKE_ARP | WAKE_UCAST)) { + netdev_info(dev->net, "enabling pattern match wakeup\n"); + val |= WUCSR_WAKE_EN_; + } else { + netdev_info(dev->net, "disabling pattern match wakeup\n"); + val &= ~WUCSR_WAKE_EN_; + } if (pdata->wolopts & WAKE_MAGIC) { - netdev_info(dev->net, "enabling magic packet wakeup"); + netdev_info(dev->net, "enabling magic packet wakeup\n"); val |= WUCSR_MPEN_; } else { - netdev_info(dev->net, "disabling magic packet wakeup"); + netdev_info(dev->net, "disabling magic packet wakeup\n"); val &= ~WUCSR_MPEN_; } - ret = smsc95xx_write_reg(dev, WUCSR, val); - check_warn_return(ret, "Error writing WUCSR"); + ret = smsc95xx_write_reg_nopm(dev, WUCSR, val); + check_warn_return(ret, "Error writing WUCSR\n"); /* enable wol wakeup source */ - ret = smsc95xx_read_reg(dev, PM_CTRL, &val); - check_warn_return(ret, "Error reading PM_CTRL"); + ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + check_warn_return(ret, "Error reading PM_CTRL\n"); val |= PM_CTL_WOL_EN_; - ret = smsc95xx_write_reg(dev, PM_CTRL, val); - check_warn_return(ret, "Error writing PM_CTRL"); - - /* enable receiver */ - smsc95xx_start_rx_path(dev); - - /* some wol options are enabled, so enter SUSPEND0 */ - netdev_info(dev->net, "entering SUSPEND0 mode"); - - ret = smsc95xx_read_reg(dev, PM_CTRL, &val); - check_warn_return(ret, "Error reading PM_CTRL"); - - val &= (~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_)); - val |= PM_CTL_SUS_MODE_0; - - ret = smsc95xx_write_reg(dev, PM_CTRL, val); - check_warn_return(ret, "Error writing PM_CTRL"); - - /* clear wol status */ - val &= ~PM_CTL_WUPS_; - val |= PM_CTL_WUPS_WOL_; - ret = smsc95xx_write_reg(dev, PM_CTRL, val); - check_warn_return(ret, "Error writing PM_CTRL"); + /* phy energy detect wakeup source */ + if (pdata->wolopts & WAKE_PHY) + val |= PM_CTL_ED_EN_; - /* read back PM_CTRL */ - ret = smsc95xx_read_reg(dev, PM_CTRL, &val); - check_warn_return(ret, "Error reading PM_CTRL"); + ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + check_warn_return(ret, "Error writing PM_CTRL\n"); - smsc95xx_set_feature(dev, USB_DEVICE_REMOTE_WAKEUP); + /* enable receiver to enable frame reception */ + smsc95xx_start_rx_path(dev, 1); - return 0; + /* some wol options are enabled, so enter SUSPEND0 */ + netdev_info(dev->net, "entering SUSPEND0 mode\n"); + return smsc95xx_enter_suspend0(dev); } static int smsc95xx_resume(struct usb_interface *intf) @@ -1184,31 +1442,31 @@ static int smsc95xx_resume(struct usb_interface *intf) BUG_ON(!dev); - if (pdata->wolopts & WAKE_MAGIC) { + if (pdata->wolopts) { smsc95xx_clear_feature(dev, USB_DEVICE_REMOTE_WAKEUP); - /* Disable magic packup wake */ - ret = smsc95xx_read_reg(dev, WUCSR, &val); - check_warn_return(ret, "Error reading WUCSR"); + /* clear wake-up sources */ + ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val); + check_warn_return(ret, "Error reading WUCSR\n"); - val &= ~WUCSR_MPEN_; + val &= ~(WUCSR_WAKE_EN_ | WUCSR_MPEN_); - ret = smsc95xx_write_reg(dev, WUCSR, val); - check_warn_return(ret, "Error writing WUCSR"); + ret = smsc95xx_write_reg_nopm(dev, WUCSR, val); + check_warn_return(ret, "Error writing WUCSR\n"); /* clear wake-up status */ - ret = smsc95xx_read_reg(dev, PM_CTRL, &val); - check_warn_return(ret, "Error reading PM_CTRL"); + ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val); + check_warn_return(ret, "Error reading PM_CTRL\n"); val &= ~PM_CTL_WOL_EN_; val |= PM_CTL_WUPS_; - ret = smsc95xx_write_reg(dev, PM_CTRL, val); - check_warn_return(ret, "Error writing PM_CTRL"); + ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val); + check_warn_return(ret, "Error writing PM_CTRL\n"); } - return usbnet_resume(intf); - check_warn_return(ret, "usbnet_resume error"); + ret = usbnet_resume(intf); + check_warn_return(ret, "usbnet_resume error\n"); return 0; } diff --git a/drivers/net/usb/smsc95xx.h b/drivers/net/usb/smsc95xx.h index 2ff9815aa27c..f360ee372554 100644 --- a/drivers/net/usb/smsc95xx.h +++ b/drivers/net/usb/smsc95xx.h @@ -53,6 +53,11 @@ #define ID_REV_CHIP_ID_MASK_ (0xFFFF0000) #define ID_REV_CHIP_REV_MASK_ (0x0000FFFF) #define ID_REV_CHIP_ID_9500_ (0x9500) +#define ID_REV_CHIP_ID_9500A_ (0x9E00) +#define ID_REV_CHIP_ID_9512_ (0xEC00) +#define ID_REV_CHIP_ID_9530_ (0x9530) +#define ID_REV_CHIP_ID_89530_ (0x9E08) +#define ID_REV_CHIP_ID_9730_ (0x9730) #define INT_STS (0x08) #define INT_STS_TX_STOP_ (0x00020000) @@ -203,8 +208,11 @@ #define VLAN2 (0x124) #define WUFF (0x128) +#define LAN9500_WUFF_NUM (4) +#define LAN9500A_WUFF_NUM (8) #define WUCSR (0x12C) +#define WUCSR_WFF_PTR_RST_ (0x80000000) #define WUCSR_GUE_ (0x00000200) #define WUCSR_WUFR_ (0x00000040) #define WUCSR_MPR_ (0x00000020) @@ -218,6 +226,23 @@ /* Vendor-specific PHY Definitions */ +/* EDPD NLP / crossover time configuration (LAN9500A only) */ +#define PHY_EDPD_CONFIG (16) +#define PHY_EDPD_CONFIG_TX_NLP_EN_ ((u16)0x8000) +#define PHY_EDPD_CONFIG_TX_NLP_1000_ ((u16)0x0000) +#define PHY_EDPD_CONFIG_TX_NLP_768_ ((u16)0x2000) +#define PHY_EDPD_CONFIG_TX_NLP_512_ ((u16)0x4000) +#define PHY_EDPD_CONFIG_TX_NLP_256_ ((u16)0x6000) +#define PHY_EDPD_CONFIG_RX_1_NLP_ ((u16)0x1000) +#define PHY_EDPD_CONFIG_RX_NLP_64_ ((u16)0x0000) +#define PHY_EDPD_CONFIG_RX_NLP_256_ ((u16)0x0400) +#define PHY_EDPD_CONFIG_RX_NLP_512_ ((u16)0x0800) +#define PHY_EDPD_CONFIG_RX_NLP_1000_ ((u16)0x0C00) +#define PHY_EDPD_CONFIG_EXT_CROSSOVER_ ((u16)0x0001) +#define PHY_EDPD_CONFIG_DEFAULT (PHY_EDPD_CONFIG_TX_NLP_EN_ | \ + PHY_EDPD_CONFIG_TX_NLP_768_ | \ + PHY_EDPD_CONFIG_RX_1_NLP_) + /* Mode Control/Status Register */ #define PHY_MODE_CTRL_STS (17) #define MODE_CTRL_STS_EDPWRDOWN_ ((u16)0x2000) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index edb81ed06950..c04110ba677f 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1616,6 +1616,202 @@ void usbnet_device_suggests_idle(struct usbnet *dev) EXPORT_SYMBOL(usbnet_device_suggests_idle); /*-------------------------------------------------------------------------*/ +static int __usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, + u16 value, u16 index, void *data, u16 size) +{ + void *buf = NULL; + int err = -ENOMEM; + + netdev_dbg(dev->net, "usbnet_read_cmd cmd=0x%02x reqtype=%02x" + " value=0x%04x index=0x%04x size=%d\n", + cmd, reqtype, value, index, size); + + if (data) { + buf = kmalloc(size, GFP_KERNEL); + if (!buf) + goto out; + } + + err = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), + cmd, reqtype, value, index, buf, size, + USB_CTRL_GET_TIMEOUT); + if (err > 0 && err <= size) + memcpy(data, buf, err); + kfree(buf); +out: + return err; +} + +static int __usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, + u16 value, u16 index, const void *data, + u16 size) +{ + void *buf = NULL; + int err = -ENOMEM; + + netdev_dbg(dev->net, "usbnet_write_cmd cmd=0x%02x reqtype=%02x" + " value=0x%04x index=0x%04x size=%d\n", + cmd, reqtype, value, index, size); + + if (data) { + buf = kmemdup(data, size, GFP_KERNEL); + if (!buf) + goto out; + } + + err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), + cmd, reqtype, value, index, buf, size, + USB_CTRL_SET_TIMEOUT); + kfree(buf); + +out: + return err; +} + +/* + * The function can't be called inside suspend/resume callback, + * otherwise deadlock will be caused. + */ +int usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, + u16 value, u16 index, void *data, u16 size) +{ + int ret; + + if (usb_autopm_get_interface(dev->intf) < 0) + return -ENODEV; + ret = __usbnet_read_cmd(dev, cmd, reqtype, value, index, + data, size); + usb_autopm_put_interface(dev->intf); + return ret; +} +EXPORT_SYMBOL_GPL(usbnet_read_cmd); + +/* + * The function can't be called inside suspend/resume callback, + * otherwise deadlock will be caused. + */ +int usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, + u16 value, u16 index, const void *data, u16 size) +{ + int ret; + + if (usb_autopm_get_interface(dev->intf) < 0) + return -ENODEV; + ret = __usbnet_write_cmd(dev, cmd, reqtype, value, index, + data, size); + usb_autopm_put_interface(dev->intf); + return ret; +} +EXPORT_SYMBOL_GPL(usbnet_write_cmd); + +/* + * The function can be called inside suspend/resume callback safely + * and should only be called by suspend/resume callback generally. + */ +int usbnet_read_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype, + u16 value, u16 index, void *data, u16 size) +{ + return __usbnet_read_cmd(dev, cmd, reqtype, value, index, + data, size); +} +EXPORT_SYMBOL_GPL(usbnet_read_cmd_nopm); + +/* + * The function can be called inside suspend/resume callback safely + * and should only be called by suspend/resume callback generally. + */ +int usbnet_write_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype, + u16 value, u16 index, const void *data, + u16 size) +{ + return __usbnet_write_cmd(dev, cmd, reqtype, value, index, + data, size); +} +EXPORT_SYMBOL_GPL(usbnet_write_cmd_nopm); + +static void usbnet_async_cmd_cb(struct urb *urb) +{ + struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; + int status = urb->status; + + if (status < 0) + dev_dbg(&urb->dev->dev, "%s failed with %d", + __func__, status); + + kfree(req); + usb_free_urb(urb); +} + +/* + * The caller must make sure that device can't be put into suspend + * state until the control URB completes. + */ +int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype, + u16 value, u16 index, const void *data, u16 size) +{ + struct usb_ctrlrequest *req = NULL; + struct urb *urb; + int err = -ENOMEM; + void *buf = NULL; + + netdev_dbg(dev->net, "usbnet_write_cmd cmd=0x%02x reqtype=%02x" + " value=0x%04x index=0x%04x size=%d\n", + cmd, reqtype, value, index, size); + + urb = usb_alloc_urb(0, GFP_ATOMIC); + if (!urb) { + netdev_err(dev->net, "Error allocating URB in" + " %s!\n", __func__); + goto fail; + } + + if (data) { + buf = kmemdup(data, size, GFP_ATOMIC); + if (!buf) { + netdev_err(dev->net, "Error allocating buffer" + " in %s!\n", __func__); + goto fail_free; + } + } + + req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); + if (!req) { + netdev_err(dev->net, "Failed to allocate memory for %s\n", + __func__); + goto fail_free_buf; + } + + req->bRequestType = reqtype; + req->bRequest = cmd; + req->wValue = cpu_to_le16(value); + req->wIndex = cpu_to_le16(index); + req->wLength = cpu_to_le16(size); + + usb_fill_control_urb(urb, dev->udev, + usb_sndctrlpipe(dev->udev, 0), + (void *)req, buf, size, + usbnet_async_cmd_cb, req); + urb->transfer_flags |= URB_FREE_BUFFER; + + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err < 0) { + netdev_err(dev->net, "Error submitting the control" + " message: status=%d\n", err); + goto fail_free; + } + return 0; + +fail_free_buf: + kfree(buf); +fail_free: + kfree(req); + usb_free_urb(urb); +fail: + return err; + +} +EXPORT_SYMBOL_GPL(usbnet_write_cmd_async); +/*-------------------------------------------------------------------------*/ static int __init usbnet_init(void) { |