^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * USB-to-WWAN Driver for Sierra Wireless modems
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2008, 2009, 2010 Paxton Smith, Matthew Safar, Rory Filer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * <linux@sierrawireless.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Portions of this based on the cdc_ether driver by David Brownell (2003-2005)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * and Ole Andre Vadla Ravnas (ActiveSync) (2006).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * IMPORTANT DISCLAIMER: This driver is not commercially supported by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Sierra Wireless. Use at your own risk.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define DRIVER_VERSION "v.2.0"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define DRIVER_AUTHOR "Paxton Smith, Matthew Safar, Rory Filer"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define DRIVER_DESC "USB-to-WWAN Driver for Sierra Wireless modems"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) static const char driver_name[] = "sierra_net";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /* if defined debug messages enabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /*#define DEBUG*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/etherdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/ethtool.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/mii.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/timer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/usb/cdc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <net/ip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <net/udp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <asm/unaligned.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <linux/usb/usbnet.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define SWI_USB_REQUEST_GET_FW_ATTR 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define SWI_GET_FW_ATTR_MASK 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /* atomic counter partially included in MAC address to make sure 2 devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * do not end up with the same MAC - concept breaks in case of > 255 ifaces
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static atomic_t iface_counter = ATOMIC_INIT(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * SYNC Timer Delay definition used to set the expiry time
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define SIERRA_NET_SYNCDELAY (2*HZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) /* Max. MTU supported. The modem buffers are limited to 1500 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define SIERRA_NET_MAX_SUPPORTED_MTU 1500
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /* The SIERRA_NET_USBCTL_BUF_LEN defines a buffer size allocated for control
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * message reception ... and thus the max. received packet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * (May be the cause for parse_hip returning -EINVAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define SIERRA_NET_USBCTL_BUF_LEN 1024
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) /* Overriding the default usbnet rx_urb_size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define SIERRA_NET_RX_URB_SIZE (8 * 1024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) /* Private data structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct sierra_net_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) u16 link_up; /* air link up or down */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) u8 tx_hdr_template[4]; /* part of HIP hdr for tx'd packets */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) u8 sync_msg[4]; /* SYNC message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) u8 shdwn_msg[4]; /* Shutdown message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) /* Backpointer to the container */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct usbnet *usbnet;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) u8 ifnum; /* interface number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* Bit masks, must be a power of 2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #define SIERRA_NET_EVENT_RESP_AVAIL 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #define SIERRA_NET_TIMER_EXPIRY 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) unsigned long kevent_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct work_struct sierra_net_kevent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct timer_list sync_timer; /* For retrying SYNC sequence */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) struct param {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) int is_present;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) void *ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) u32 dword;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) u16 word;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) u8 byte;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /* HIP message type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) #define SIERRA_NET_HIP_EXTENDEDID 0x7F
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #define SIERRA_NET_HIP_HSYNC_ID 0x60 /* Modem -> host */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #define SIERRA_NET_HIP_RESTART_ID 0x62 /* Modem -> host */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) #define SIERRA_NET_HIP_MSYNC_ID 0x20 /* Host -> modem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #define SIERRA_NET_HIP_SHUTD_ID 0x26 /* Host -> modem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) #define SIERRA_NET_HIP_EXT_IP_IN_ID 0x0202
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) #define SIERRA_NET_HIP_EXT_IP_OUT_ID 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) /* 3G UMTS Link Sense Indication definitions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #define SIERRA_NET_HIP_LSI_UMTSID 0x78
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) /* Reverse Channel Grant Indication HIP message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #define SIERRA_NET_HIP_RCGI 0x64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) /* LSI Protocol types */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define SIERRA_NET_PROTOCOL_UMTS 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define SIERRA_NET_PROTOCOL_UMTS_DS 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) /* LSI Coverage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define SIERRA_NET_COVERAGE_NONE 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define SIERRA_NET_COVERAGE_NOPACKET 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) /* LSI Session */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #define SIERRA_NET_SESSION_IDLE 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) /* LSI Link types */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #define SIERRA_NET_AS_LINK_TYPE_IPV4 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #define SIERRA_NET_AS_LINK_TYPE_IPV6 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) struct lsi_umts {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) u8 protocol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) u8 unused1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) __be16 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) /* eventually use a union for the rest - assume umts for now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) u8 coverage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) u8 network_len; /* network name len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) u8 network[40]; /* network name (UCS2, bigendian) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) u8 session_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) u8 unused3[33];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct lsi_umts_single {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) struct lsi_umts lsi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) u8 link_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) u8 pdp_addr_len; /* NW-supplied PDP address len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) u8 pdp_addr[16]; /* NW-supplied PDP address (bigendian)) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) u8 unused4[23];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) u8 dns1_addr_len; /* NW-supplied 1st DNS address len (bigendian) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) u8 dns1_addr[16]; /* NW-supplied 1st DNS address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) u8 dns2_addr_len; /* NW-supplied 2nd DNS address len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) u8 dns2_addr[16]; /* NW-supplied 2nd DNS address (bigendian)*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) u8 wins1_addr_len; /* NW-supplied 1st Wins address len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) u8 wins1_addr[16]; /* NW-supplied 1st Wins address (bigendian)*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) u8 wins2_addr_len; /* NW-supplied 2nd Wins address len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) u8 wins2_addr[16]; /* NW-supplied 2nd Wins address (bigendian) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) u8 unused5[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) u8 gw_addr_len; /* NW-supplied GW address len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) u8 gw_addr[16]; /* NW-supplied GW address (bigendian) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) u8 reserved[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) struct lsi_umts_dual {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct lsi_umts lsi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) u8 pdp_addr4_len; /* NW-supplied PDP IPv4 address len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) u8 pdp_addr4[4]; /* NW-supplied PDP IPv4 address (bigendian)) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) u8 pdp_addr6_len; /* NW-supplied PDP IPv6 address len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) u8 pdp_addr6[16]; /* NW-supplied PDP IPv6 address (bigendian)) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) u8 unused4[23];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) u8 dns1_addr4_len; /* NW-supplied 1st DNS v4 address len (bigendian) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) u8 dns1_addr4[4]; /* NW-supplied 1st DNS v4 address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) u8 dns1_addr6_len; /* NW-supplied 1st DNS v6 address len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) u8 dns1_addr6[16]; /* NW-supplied 1st DNS v6 address (bigendian)*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) u8 dns2_addr4_len; /* NW-supplied 2nd DNS v4 address len (bigendian) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) u8 dns2_addr4[4]; /* NW-supplied 2nd DNS v4 address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) u8 dns2_addr6_len; /* NW-supplied 2nd DNS v6 address len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) u8 dns2_addr6[16]; /* NW-supplied 2nd DNS v6 address (bigendian)*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) u8 unused5[68];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) #define SIERRA_NET_LSI_COMMON_LEN 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) #define SIERRA_NET_LSI_UMTS_LEN (sizeof(struct lsi_umts_single))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) #define SIERRA_NET_LSI_UMTS_STATUS_LEN \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) (SIERRA_NET_LSI_UMTS_LEN - SIERRA_NET_LSI_COMMON_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) #define SIERRA_NET_LSI_UMTS_DS_LEN (sizeof(struct lsi_umts_dual))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) #define SIERRA_NET_LSI_UMTS_DS_STATUS_LEN \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) (SIERRA_NET_LSI_UMTS_DS_LEN - SIERRA_NET_LSI_COMMON_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) /* Our own net device operations structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) static const struct net_device_ops sierra_net_device_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) .ndo_open = usbnet_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) .ndo_stop = usbnet_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) .ndo_start_xmit = usbnet_start_xmit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) .ndo_tx_timeout = usbnet_tx_timeout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) .ndo_change_mtu = usbnet_change_mtu,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) .ndo_get_stats64 = usbnet_get_stats64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) .ndo_set_mac_address = eth_mac_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) .ndo_validate_addr = eth_validate_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) /* get private data associated with passed in usbnet device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) static inline struct sierra_net_data *sierra_net_get_private(struct usbnet *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) return (struct sierra_net_data *)dev->data[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) /* set private data associated with passed in usbnet device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) static inline void sierra_net_set_private(struct usbnet *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) struct sierra_net_data *priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) dev->data[0] = (unsigned long)priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) /* is packet IPv4/IPv6 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) static inline int is_ip(struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return skb->protocol == cpu_to_be16(ETH_P_IP) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) skb->protocol == cpu_to_be16(ETH_P_IPV6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) * check passed in packet and make sure that:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) * - it is linear (no scatter/gather)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) * - it is ethernet (mac_header properly set)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) static int check_ethip_packet(struct sk_buff *skb, struct usbnet *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) skb_reset_mac_header(skb); /* ethernet header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) if (skb_is_nonlinear(skb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) netdev_err(dev->net, "Non linear buffer-dropping\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) if (!pskb_may_pull(skb, ETH_HLEN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) skb->protocol = eth_hdr(skb)->h_proto;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) static const u8 *save16bit(struct param *p, const u8 *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) p->is_present = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) p->word = get_unaligned_be16(datap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) return datap + sizeof(p->word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) static const u8 *save8bit(struct param *p, const u8 *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) p->is_present = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) p->byte = *datap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) return datap + sizeof(p->byte);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) /*----------------------------------------------------------------------------*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) * BEGIN HIP *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) *----------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) /* HIP header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) #define SIERRA_NET_HIP_HDR_LEN 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) /* Extended HIP header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) #define SIERRA_NET_HIP_EXT_HDR_LEN 6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) struct hip_hdr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) int hdrlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) struct param payload_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) struct param msgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) struct param msgspecific;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) struct param extmsgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) static int parse_hip(const u8 *buf, const u32 buflen, struct hip_hdr *hh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) const u8 *curp = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) int padded;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) if (buflen < SIERRA_NET_HIP_HDR_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) return -EPROTO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) curp = save16bit(&hh->payload_len, curp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) curp = save8bit(&hh->msgid, curp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) curp = save8bit(&hh->msgspecific, curp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) padded = hh->msgid.byte & 0x80;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) hh->msgid.byte &= 0x7F; /* 7 bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) hh->extmsgid.is_present = (hh->msgid.byte == SIERRA_NET_HIP_EXTENDEDID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) if (hh->extmsgid.is_present) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) if (buflen < SIERRA_NET_HIP_EXT_HDR_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) return -EPROTO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) hh->payload_len.word &= 0x3FFF; /* 14 bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) curp = save16bit(&hh->extmsgid, curp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) hh->extmsgid.word &= 0x03FF; /* 10 bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) hh->hdrlen = SIERRA_NET_HIP_EXT_HDR_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) hh->payload_len.word &= 0x07FF; /* 11 bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) hh->hdrlen = SIERRA_NET_HIP_HDR_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) if (padded) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) hh->hdrlen++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) hh->payload_len.word--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) /* if real packet shorter than the claimed length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) if (buflen < (hh->hdrlen + hh->payload_len.word))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) static void build_hip(u8 *buf, const u16 payloadlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) struct sierra_net_data *priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) /* the following doesn't have the full functionality. We
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) * currently build only one kind of header, so it is faster this way
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) put_unaligned_be16(payloadlen, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) memcpy(buf+2, priv->tx_hdr_template, sizeof(priv->tx_hdr_template));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) /*----------------------------------------------------------------------------*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) * END HIP *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) *----------------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) static int sierra_net_send_cmd(struct usbnet *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) u8 *cmd, int cmdlen, const char * cmd_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) struct sierra_net_data *priv = sierra_net_get_private(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) status = usbnet_write_cmd(dev, USB_CDC_SEND_ENCAPSULATED_COMMAND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 0, priv->ifnum, cmd, cmdlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) if (status != cmdlen && status != -ENODEV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) netdev_err(dev->net, "Submit %s failed %d\n", cmd_name, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) static int sierra_net_send_sync(struct usbnet *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) struct sierra_net_data *priv = sierra_net_get_private(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) dev_dbg(&dev->udev->dev, "%s", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) status = sierra_net_send_cmd(dev, priv->sync_msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) sizeof(priv->sync_msg), "SYNC");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) static void sierra_net_set_ctx_index(struct sierra_net_data *priv, u8 ctx_ix)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) dev_dbg(&(priv->usbnet->udev->dev), "%s %d", __func__, ctx_ix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) priv->tx_hdr_template[0] = 0x3F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) priv->tx_hdr_template[1] = ctx_ix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) *((__be16 *)&priv->tx_hdr_template[2]) =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) cpu_to_be16(SIERRA_NET_HIP_EXT_IP_OUT_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) static int sierra_net_parse_lsi(struct usbnet *dev, char *data, int datalen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) struct lsi_umts *lsi = (struct lsi_umts *)data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) u32 expected_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) if (datalen < sizeof(struct lsi_umts_single)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) netdev_err(dev->net, "%s: Data length %d, exp >= %zu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) __func__, datalen, sizeof(struct lsi_umts_single));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) /* Validate the session state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) if (lsi->session_state == SIERRA_NET_SESSION_IDLE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) netdev_err(dev->net, "Session idle, 0x%02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) lsi->session_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) /* Validate the protocol - only support UMTS for now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) if (lsi->protocol == SIERRA_NET_PROTOCOL_UMTS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) struct lsi_umts_single *single = (struct lsi_umts_single *)lsi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) /* Validate the link type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) if (single->link_type != SIERRA_NET_AS_LINK_TYPE_IPV4 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) single->link_type != SIERRA_NET_AS_LINK_TYPE_IPV6) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) netdev_err(dev->net, "Link type unsupported: 0x%02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) single->link_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) expected_length = SIERRA_NET_LSI_UMTS_STATUS_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) } else if (lsi->protocol == SIERRA_NET_PROTOCOL_UMTS_DS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) expected_length = SIERRA_NET_LSI_UMTS_DS_STATUS_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) netdev_err(dev->net, "Protocol unsupported, 0x%02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) lsi->protocol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) if (be16_to_cpu(lsi->length) != expected_length) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) netdev_err(dev->net, "%s: LSI_UMTS_STATUS_LEN %d, exp %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) __func__, be16_to_cpu(lsi->length), expected_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) /* Validate the coverage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) if (lsi->coverage == SIERRA_NET_COVERAGE_NONE ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) lsi->coverage == SIERRA_NET_COVERAGE_NOPACKET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) netdev_err(dev->net, "No coverage, 0x%02x\n", lsi->coverage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) /* Set link_sense true */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) static void sierra_net_handle_lsi(struct usbnet *dev, char *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) struct hip_hdr *hh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) struct sierra_net_data *priv = sierra_net_get_private(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) int link_up;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) link_up = sierra_net_parse_lsi(dev, data + hh->hdrlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) hh->payload_len.word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (link_up < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) netdev_err(dev->net, "Invalid LSI\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) if (link_up) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) sierra_net_set_ctx_index(priv, hh->msgspecific.byte);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) priv->link_up = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) priv->link_up = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) usbnet_link_change(dev, link_up, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) static void sierra_net_dosync(struct usbnet *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) struct sierra_net_data *priv = sierra_net_get_private(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) dev_dbg(&dev->udev->dev, "%s", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) /* The SIERRA_NET_HIP_MSYNC_ID command appears to request that the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) * firmware restart itself. After restarting, the modem will respond
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) * with the SIERRA_NET_HIP_RESTART_ID indication. The driver continues
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) * sending MSYNC commands every few seconds until it receives the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) * RESTART event from the firmware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) /* tell modem we are ready */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) status = sierra_net_send_sync(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) if (status < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) netdev_err(dev->net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) "Send SYNC failed, status %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) status = sierra_net_send_sync(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) if (status < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) netdev_err(dev->net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) "Send SYNC failed, status %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) /* Now, start a timer and make sure we get the Restart Indication */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) priv->sync_timer.expires = jiffies + SIERRA_NET_SYNCDELAY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) add_timer(&priv->sync_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) static void sierra_net_kevent(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) struct sierra_net_data *priv =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) container_of(work, struct sierra_net_data, sierra_net_kevent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) struct usbnet *dev = priv->usbnet;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) int len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) u8 *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) u8 ifnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) if (test_bit(SIERRA_NET_EVENT_RESP_AVAIL, &priv->kevent_flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) clear_bit(SIERRA_NET_EVENT_RESP_AVAIL, &priv->kevent_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) /* Query the modem for the LSI message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) buf = kzalloc(SIERRA_NET_USBCTL_BUF_LEN, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) if (!buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) ifnum = priv->ifnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) len = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) USB_CDC_GET_ENCAPSULATED_RESPONSE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) 0, ifnum, buf, SIERRA_NET_USBCTL_BUF_LEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) USB_CTRL_SET_TIMEOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) if (len < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) netdev_err(dev->net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) "usb_control_msg failed, status %d\n", len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) struct hip_hdr hh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) dev_dbg(&dev->udev->dev, "%s: Received status message,"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) " %04x bytes", __func__, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) err = parse_hip(buf, len, &hh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) netdev_err(dev->net, "%s: Bad packet,"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) " parse result %d\n", __func__, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) /* Validate packet length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) if (len != hh.hdrlen + hh.payload_len.word) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) netdev_err(dev->net, "%s: Bad packet, received"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) " %d, expected %d\n", __func__, len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) hh.hdrlen + hh.payload_len.word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) /* Switch on received message types */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) switch (hh.msgid.byte) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) case SIERRA_NET_HIP_LSI_UMTSID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) dev_dbg(&dev->udev->dev, "LSI for ctx:%d",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) hh.msgspecific.byte);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) sierra_net_handle_lsi(dev, buf, &hh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) case SIERRA_NET_HIP_RESTART_ID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) dev_dbg(&dev->udev->dev, "Restart reported: %d,"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) " stopping sync timer",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) hh.msgspecific.byte);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) /* Got sync resp - stop timer & clear mask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) del_timer_sync(&priv->sync_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) clear_bit(SIERRA_NET_TIMER_EXPIRY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) &priv->kevent_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) case SIERRA_NET_HIP_HSYNC_ID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) dev_dbg(&dev->udev->dev, "SYNC received");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) err = sierra_net_send_sync(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) netdev_err(dev->net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) "Send SYNC failed %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) case SIERRA_NET_HIP_EXTENDEDID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) netdev_err(dev->net, "Unrecognized HIP msg, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) "extmsgid 0x%04x\n", hh.extmsgid.word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) case SIERRA_NET_HIP_RCGI:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) /* Ignored */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) netdev_err(dev->net, "Unrecognized HIP msg, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) "msgid 0x%02x\n", hh.msgid.byte);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) /* The sync timer bit might be set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) if (test_bit(SIERRA_NET_TIMER_EXPIRY, &priv->kevent_flags)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) clear_bit(SIERRA_NET_TIMER_EXPIRY, &priv->kevent_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) dev_dbg(&dev->udev->dev, "Deferred sync timer expiry");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) sierra_net_dosync(priv->usbnet);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) if (priv->kevent_flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) dev_dbg(&dev->udev->dev, "sierra_net_kevent done, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) "kevent_flags = 0x%lx", priv->kevent_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) static void sierra_net_defer_kevent(struct usbnet *dev, int work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) struct sierra_net_data *priv = sierra_net_get_private(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) set_bit(work, &priv->kevent_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) schedule_work(&priv->sierra_net_kevent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) * Sync Retransmit Timer Handler. On expiry, kick the work queue
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) static void sierra_sync_timer(struct timer_list *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) struct sierra_net_data *priv = from_timer(priv, t, sync_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) struct usbnet *dev = priv->usbnet;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) dev_dbg(&dev->udev->dev, "%s", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) /* Kick the tasklet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) sierra_net_defer_kevent(dev, SIERRA_NET_TIMER_EXPIRY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) static void sierra_net_status(struct usbnet *dev, struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) struct usb_cdc_notification *event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) dev_dbg(&dev->udev->dev, "%s", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) if (urb->actual_length < sizeof *event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) /* Add cases to handle other standard notifications. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) event = urb->transfer_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) switch (event->bNotificationType) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) case USB_CDC_NOTIFY_NETWORK_CONNECTION:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) case USB_CDC_NOTIFY_SPEED_CHANGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) /* USB 305 sends those */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) case USB_CDC_NOTIFY_RESPONSE_AVAILABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) sierra_net_defer_kevent(dev, SIERRA_NET_EVENT_RESP_AVAIL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) netdev_err(dev->net, ": unexpected notification %02x!\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) event->bNotificationType);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) static void sierra_net_get_drvinfo(struct net_device *net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) struct ethtool_drvinfo *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) /* Inherit standard device info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) usbnet_get_drvinfo(net, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) strlcpy(info->driver, driver_name, sizeof(info->driver));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) static u32 sierra_net_get_link(struct net_device *net)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) struct usbnet *dev = netdev_priv(net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) /* Report link is down whenever the interface is down */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) return sierra_net_get_private(dev)->link_up && netif_running(net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) static const struct ethtool_ops sierra_net_ethtool_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) .get_drvinfo = sierra_net_get_drvinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) .get_link = sierra_net_get_link,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) .get_msglevel = usbnet_get_msglevel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) .set_msglevel = usbnet_set_msglevel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) .nway_reset = usbnet_nway_reset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) .get_link_ksettings = usbnet_get_link_ksettings,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) .set_link_ksettings = usbnet_set_link_ksettings,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) static int sierra_net_get_fw_attr(struct usbnet *dev, u16 *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) int result = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) __le16 attrdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) result = usbnet_read_cmd(dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) /* _u8 vendor specific request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) SWI_USB_REQUEST_GET_FW_ATTR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) USB_DIR_IN | USB_TYPE_VENDOR, /* __u8 request type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) 0x0000, /* __u16 value not used */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) 0x0000, /* __u16 index not used */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) &attrdata, /* char *data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) sizeof(attrdata) /* __u16 size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) if (result < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) *datap = le16_to_cpu(attrdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) * collects the bulk endpoints, the status endpoint.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) u8 ifacenum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) u8 numendpoints;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) u16 fwattr = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) struct sierra_net_data *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) static const u8 sync_tmplate[sizeof(priv->sync_msg)] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) 0x00, 0x00, SIERRA_NET_HIP_MSYNC_ID, 0x00};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) static const u8 shdwn_tmplate[sizeof(priv->shdwn_msg)] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) 0x00, 0x00, SIERRA_NET_HIP_SHUTD_ID, 0x00};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) dev_dbg(&dev->udev->dev, "%s", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) ifacenum = intf->cur_altsetting->desc.bInterfaceNumber;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) numendpoints = intf->cur_altsetting->desc.bNumEndpoints;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) /* We have three endpoints, bulk in and out, and a status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) if (numendpoints != 3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) dev_err(&dev->udev->dev, "Expected 3 endpoints, found: %d",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) numendpoints);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) /* Status endpoint set in usbnet_get_endpoints() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) dev->status = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) status = usbnet_get_endpoints(dev, intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) if (status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) dev_err(&dev->udev->dev, "Error in usbnet_get_endpoints (%d)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) /* Initialize sierra private data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) priv = kzalloc(sizeof *priv, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) priv->usbnet = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) priv->ifnum = ifacenum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) dev->net->netdev_ops = &sierra_net_device_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) /* change MAC addr to include, ifacenum, and to be unique */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) /* prepare shutdown message template */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) memcpy(priv->shdwn_msg, shdwn_tmplate, sizeof(priv->shdwn_msg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) /* set context index initially to 0 - prepares tx hdr template */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) sierra_net_set_ctx_index(priv, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) /* prepare sync message template */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) memcpy(priv->sync_msg, sync_tmplate, sizeof(priv->sync_msg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) /* decrease the rx_urb_size and max_tx_size to 4k on USB 1.1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) dev->rx_urb_size = SIERRA_NET_RX_URB_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) if (dev->udev->speed != USB_SPEED_HIGH)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) dev->rx_urb_size = min_t(size_t, 4096, SIERRA_NET_RX_URB_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) dev->net->hard_header_len += SIERRA_NET_HIP_EXT_HDR_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) dev->net->max_mtu = SIERRA_NET_MAX_SUPPORTED_MTU;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) /* Set up the netdev */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) dev->net->flags |= IFF_NOARP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) dev->net->ethtool_ops = &sierra_net_ethtool_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) netif_carrier_off(dev->net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) sierra_net_set_private(dev, priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) priv->kevent_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) /* Use the shared workqueue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) INIT_WORK(&priv->sierra_net_kevent, sierra_net_kevent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) /* Only need to do this once */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) timer_setup(&priv->sync_timer, sierra_sync_timer, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) /* verify fw attributes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) status = sierra_net_get_fw_attr(dev, &fwattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) dev_dbg(&dev->udev->dev, "Fw attr: %x\n", fwattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) /* test whether firmware supports DHCP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) if (!(status == sizeof(fwattr) && (fwattr & SWI_GET_FW_ATTR_MASK))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) /* found incompatible firmware version */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) dev_err(&dev->udev->dev, "Incompatible driver and firmware"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) " versions\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) kfree(priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) static void sierra_net_unbind(struct usbnet *dev, struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) struct sierra_net_data *priv = sierra_net_get_private(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) dev_dbg(&dev->udev->dev, "%s", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) /* kill the timer and work */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) del_timer_sync(&priv->sync_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) cancel_work_sync(&priv->sierra_net_kevent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) /* tell modem we are going away */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) status = sierra_net_send_cmd(dev, priv->shdwn_msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) sizeof(priv->shdwn_msg), "Shutdown");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) if (status < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) netdev_err(dev->net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) "usb_control_msg failed, status %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) usbnet_status_stop(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) sierra_net_set_private(dev, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) kfree(priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) static struct sk_buff *sierra_net_skb_clone(struct usbnet *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) struct sk_buff *skb, int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) struct sk_buff *new_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) /* clone skb */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) new_skb = skb_clone(skb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) /* remove len bytes from original */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) skb_pull(skb, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) /* trim next packet to it's length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) if (new_skb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) skb_trim(new_skb, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) if (netif_msg_rx_err(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) netdev_err(dev->net, "failed to get skb\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) dev->net->stats.rx_dropped++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) return new_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) /* ---------------------------- Receive data path ----------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) static int sierra_net_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) struct hip_hdr hh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) struct sk_buff *new_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) dev_dbg(&dev->udev->dev, "%s", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) /* could contain multiple packets */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) while (likely(skb->len)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) err = parse_hip(skb->data, skb->len, &hh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) if (netif_msg_rx_err(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) netdev_err(dev->net, "Invalid HIP header %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) /* dev->net->stats.rx_errors incremented by caller */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) dev->net->stats.rx_length_errors++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) /* Validate Extended HIP header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) if (!hh.extmsgid.is_present
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) || hh.extmsgid.word != SIERRA_NET_HIP_EXT_IP_IN_ID) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) if (netif_msg_rx_err(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) netdev_err(dev->net, "HIP/ETH: Invalid pkt\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) dev->net->stats.rx_frame_errors++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) /* dev->net->stats.rx_errors incremented by caller */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) skb_pull(skb, hh.hdrlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) /* We are going to accept this packet, prepare it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) * In case protocol is IPv6, keep it, otherwise force IPv4.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) skb_reset_mac_header(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) if (eth_hdr(skb)->h_proto != cpu_to_be16(ETH_P_IPV6))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) eth_hdr(skb)->h_proto = cpu_to_be16(ETH_P_IP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) eth_zero_addr(eth_hdr(skb)->h_source);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) /* Last packet in batch handled by usbnet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) if (hh.payload_len.word == skb->len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) new_skb = sierra_net_skb_clone(dev, skb, hh.payload_len.word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) if (new_skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) usbnet_skb_return(dev, new_skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) } /* while */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) /* ---------------------------- Transmit data path ----------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) static struct sk_buff *sierra_net_tx_fixup(struct usbnet *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) struct sk_buff *skb, gfp_t flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) struct sierra_net_data *priv = sierra_net_get_private(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) u16 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) bool need_tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) BUILD_BUG_ON(sizeof_field(struct usbnet, data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) < sizeof(struct cdc_state));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) dev_dbg(&dev->udev->dev, "%s", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) if (priv->link_up && check_ethip_packet(skb, dev) && is_ip(skb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) /* enough head room as is? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) if (SIERRA_NET_HIP_EXT_HDR_LEN <= skb_headroom(skb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) /* Save the Eth/IP length and set up HIP hdr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) len = skb->len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) skb_push(skb, SIERRA_NET_HIP_EXT_HDR_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) /* Handle ZLP issue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) need_tail = ((len + SIERRA_NET_HIP_EXT_HDR_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) % dev->maxpacket == 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) if (need_tail) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) if (unlikely(skb_tailroom(skb) == 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) netdev_err(dev->net, "tx_fixup:"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) "no room for packet\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) dev_kfree_skb_any(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) skb->data[skb->len] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) __skb_put(skb, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) len = len + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) build_hip(skb->data, len, priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) return skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) * compensate in the future if necessary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) netdev_err(dev->net, "tx_fixup: no room for HIP\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) } /* headroom */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) if (!priv->link_up)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) dev->net->stats.tx_carrier_errors++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) /* tx_dropped incremented by usbnet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) /* filter the packet out, release it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) dev_kfree_skb_any(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) static const struct driver_info sierra_net_info_direct_ip = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) .description = "Sierra Wireless USB-to-WWAN Modem",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) .flags = FLAG_WWAN | FLAG_SEND_ZLP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) .bind = sierra_net_bind,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) .unbind = sierra_net_unbind,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) .status = sierra_net_status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) .rx_fixup = sierra_net_rx_fixup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) .tx_fixup = sierra_net_tx_fixup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) sierra_net_probe(struct usb_interface *udev, const struct usb_device_id *prod)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) ret = usbnet_probe(udev, prod);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) if (ret == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) struct usbnet *dev = usb_get_intfdata(udev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) ret = usbnet_status_start(dev, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) if (ret == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) /* Interrupt URB now set up; initiate sync sequence */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) sierra_net_dosync(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) #define DIRECT_IP_DEVICE(vend, prod) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) {USB_DEVICE_INTERFACE_NUMBER(vend, prod, 7), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) .driver_info = (unsigned long)&sierra_net_info_direct_ip}, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) {USB_DEVICE_INTERFACE_NUMBER(vend, prod, 10), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) .driver_info = (unsigned long)&sierra_net_info_direct_ip}, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) {USB_DEVICE_INTERFACE_NUMBER(vend, prod, 11), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) .driver_info = (unsigned long)&sierra_net_info_direct_ip}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) static const struct usb_device_id products[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) DIRECT_IP_DEVICE(0x1199, 0x68A3), /* Sierra Wireless USB-to-WWAN modem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) DIRECT_IP_DEVICE(0x0F3D, 0x68A3), /* AT&T Direct IP modem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) DIRECT_IP_DEVICE(0x1199, 0x68AA), /* Sierra Wireless Direct IP LTE modem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) DIRECT_IP_DEVICE(0x0F3D, 0x68AA), /* AT&T Direct IP LTE modem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) {}, /* last item */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) MODULE_DEVICE_TABLE(usb, products);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) /* We are based on usbnet, so let it handle the USB driver specifics */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) static struct usb_driver sierra_net_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) .name = "sierra_net",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) .id_table = products,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) .probe = sierra_net_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) .disconnect = usbnet_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) .suspend = usbnet_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) .resume = usbnet_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) .no_dynamic_id = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) .disable_hub_initiated_lpm = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) module_usb_driver(sierra_net_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) MODULE_AUTHOR(DRIVER_AUTHOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) MODULE_DESCRIPTION(DRIVER_DESC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) MODULE_VERSION(DRIVER_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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