09c434b8a0047 drivers/firewire/net.c (Thomas Gleixner 2019-05-19 13:08:20 +0100 1) // SPDX-License-Identifier: GPL-2.0-only
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 2) /*
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 3) * IPv4 over IEEE 1394, per RFC 2734
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 4) * IPv6 over IEEE 1394, per RFC 3146
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 5) *
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 6) * Copyright (C) 2009 Jay Fenlason <fenlason@redhat.com>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 7) *
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 8) * based on eth1394 by Ben Collins et al
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 9) */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 10)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 11) #include <linux/bug.h>
bf337b15c28ae drivers/firewire/net.c (August Lilleaas 2011-05-29 19:07:19 +0200 12) #include <linux/compiler.h>
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 13) #include <linux/delay.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 14) #include <linux/device.h>
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 15) #include <linux/ethtool.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 16) #include <linux/firewire.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 17) #include <linux/firewire-constants.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 18) #include <linux/highmem.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 19) #include <linux/in.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 20) #include <linux/ip.h>
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 21) #include <linux/jiffies.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 22) #include <linux/mod_devicetable.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 23) #include <linux/module.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 24) #include <linux/moduleparam.h>
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 25) #include <linux/mutex.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 26) #include <linux/netdevice.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 27) #include <linux/skbuff.h>
5a0e3ad6af866 drivers/firewire/net.c (Tejun Heo 2010-03-24 17:04:11 +0900 28) #include <linux/slab.h>
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 29) #include <linux/spinlock.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 30)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 31) #include <asm/unaligned.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 32) #include <net/arp.h>
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 33) #include <net/firewire.h>
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 34)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 35) /* rx limits */
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 36) #define FWNET_MAX_FRAGMENTS 30 /* arbitrary, > TX queue depth */
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 37) #define FWNET_ISO_PAGE_COUNT (PAGE_SIZE < 16*1024 ? 4 : 2)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 38)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 39) /* tx limits */
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 40) #define FWNET_MAX_QUEUED_DATAGRAMS 20 /* < 64 = number of tlabels */
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 41) #define FWNET_MIN_QUEUED_DATAGRAMS 10 /* should keep AT DMA busy enough */
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 42) #define FWNET_TX_QUEUE_LEN FWNET_MAX_QUEUED_DATAGRAMS /* ? */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 43)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 44) #define IEEE1394_BROADCAST_CHANNEL 31
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 45) #define IEEE1394_ALL_NODES (0xffc0 | 0x003f)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 46) #define IEEE1394_MAX_PAYLOAD_S100 512
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 47) #define FWNET_NO_FIFO_ADDR (~0ULL)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 48)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 49) #define IANA_SPECIFIER_ID 0x00005eU
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 50) #define RFC2734_SW_VERSION 0x000001U
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 51) #define RFC3146_SW_VERSION 0x000002U
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 52)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 53) #define IEEE1394_GASP_HDR_SIZE 8
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 54)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 55) #define RFC2374_UNFRAG_HDR_SIZE 4
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 56) #define RFC2374_FRAG_HDR_SIZE 8
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 57) #define RFC2374_FRAG_OVERHEAD 4
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 58)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 59) #define RFC2374_HDR_UNFRAG 0 /* unfragmented */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 60) #define RFC2374_HDR_FIRSTFRAG 1 /* first fragment */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 61) #define RFC2374_HDR_LASTFRAG 2 /* last fragment */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 62) #define RFC2374_HDR_INTFRAG 3 /* interior fragment */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 63)
021b97e469714 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:48 +0000 64) static bool fwnet_hwaddr_is_multicast(u8 *ha)
021b97e469714 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:48 +0000 65) {
021b97e469714 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:48 +0000 66) return !!(*ha & 1);
021b97e469714 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:48 +0000 67) }
021b97e469714 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:48 +0000 68)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 69) /* IPv4 and IPv6 encapsulation header */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 70) struct rfc2734_header {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 71) u32 w0;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 72) u32 w1;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 73) };
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 74)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 75) #define fwnet_get_hdr_lf(h) (((h)->w0 & 0xc0000000) >> 30)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 76) #define fwnet_get_hdr_ether_type(h) (((h)->w0 & 0x0000ffff))
e9300a4b7bbae drivers/firewire/net.c (Stefan Richter 2016-10-30 17:32:01 +0100 77) #define fwnet_get_hdr_dg_size(h) ((((h)->w0 & 0x0fff0000) >> 16) + 1)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 78) #define fwnet_get_hdr_fg_off(h) (((h)->w0 & 0x00000fff))
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 79) #define fwnet_get_hdr_dgl(h) (((h)->w1 & 0xffff0000) >> 16)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 80)
e9300a4b7bbae drivers/firewire/net.c (Stefan Richter 2016-10-30 17:32:01 +0100 81) #define fwnet_set_hdr_lf(lf) ((lf) << 30)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 82) #define fwnet_set_hdr_ether_type(et) (et)
e9300a4b7bbae drivers/firewire/net.c (Stefan Richter 2016-10-30 17:32:01 +0100 83) #define fwnet_set_hdr_dg_size(dgs) (((dgs) - 1) << 16)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 84) #define fwnet_set_hdr_fg_off(fgo) (fgo)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 85)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 86) #define fwnet_set_hdr_dgl(dgl) ((dgl) << 16)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 87)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 88) static inline void fwnet_make_uf_hdr(struct rfc2734_header *hdr,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 89) unsigned ether_type)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 90) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 91) hdr->w0 = fwnet_set_hdr_lf(RFC2374_HDR_UNFRAG)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 92) | fwnet_set_hdr_ether_type(ether_type);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 93) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 94)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 95) static inline void fwnet_make_ff_hdr(struct rfc2734_header *hdr,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 96) unsigned ether_type, unsigned dg_size, unsigned dgl)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 97) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 98) hdr->w0 = fwnet_set_hdr_lf(RFC2374_HDR_FIRSTFRAG)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 99) | fwnet_set_hdr_dg_size(dg_size)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 100) | fwnet_set_hdr_ether_type(ether_type);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 101) hdr->w1 = fwnet_set_hdr_dgl(dgl);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 102) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 103)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 104) static inline void fwnet_make_sf_hdr(struct rfc2734_header *hdr,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 105) unsigned lf, unsigned dg_size, unsigned fg_off, unsigned dgl)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 106) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 107) hdr->w0 = fwnet_set_hdr_lf(lf)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 108) | fwnet_set_hdr_dg_size(dg_size)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 109) | fwnet_set_hdr_fg_off(fg_off);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 110) hdr->w1 = fwnet_set_hdr_dgl(dgl);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 111) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 112)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 113) /* This list keeps track of what parts of the datagram have been filled in */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 114) struct fwnet_fragment_info {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 115) struct list_head fi_link;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 116) u16 offset;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 117) u16 len;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 118) };
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 119)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 120) struct fwnet_partial_datagram {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 121) struct list_head pd_link;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 122) struct list_head fi_list;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 123) struct sk_buff *skb;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 124) /* FIXME Why not use skb->data? */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 125) char *pbuf;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 126) u16 datagram_label;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 127) u16 ether_type;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 128) u16 datagram_size;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 129) };
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 130)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 131) static DEFINE_MUTEX(fwnet_device_mutex);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 132) static LIST_HEAD(fwnet_device_list);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 133)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 134) struct fwnet_device {
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 135) struct list_head dev_link;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 136) spinlock_t lock;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 137) enum {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 138) FWNET_BROADCAST_ERROR,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 139) FWNET_BROADCAST_RUNNING,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 140) FWNET_BROADCAST_STOPPED,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 141) } broadcast_state;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 142) struct fw_iso_context *broadcast_rcv_context;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 143) struct fw_iso_buffer broadcast_rcv_buffer;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 144) void **broadcast_rcv_buffer_ptrs;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 145) unsigned broadcast_rcv_next_ptr;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 146) unsigned num_broadcast_rcv_ptrs;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 147) unsigned rcv_buffer_size;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 148) /*
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 149) * This value is the maximum unfragmented datagram size that can be
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 150) * sent by the hardware. It already has the GASP overhead and the
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 151) * unfragmented datagram header overhead calculated into it.
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 152) */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 153) unsigned broadcast_xmt_max_payload;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 154) u16 broadcast_xmt_datagramlabel;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 155)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 156) /*
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 157) * The CSR address that remote nodes must send datagrams to for us to
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 158) * receive them.
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 159) */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 160) struct fw_address_handler handler;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 161) u64 local_fifo;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 162)
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 163) /* Number of tx datagrams that have been queued but not yet acked */
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 164) int queued_datagrams;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 165)
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 166) int peer_count;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 167) struct list_head peer_list;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 168) struct fw_card *card;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 169) struct net_device *netdev;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 170) };
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 171)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 172) struct fwnet_peer {
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 173) struct list_head peer_link;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 174) struct fwnet_device *dev;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 175) u64 guid;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 176)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 177) /* guarded by dev->lock */
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 178) struct list_head pd_list; /* received partial datagrams */
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 179) unsigned pdg_size; /* pd_list size */
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 180)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 181) u16 datagram_label; /* outgoing datagram label */
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 182) u16 max_payload; /* includes RFC2374_FRAG_HDR_SIZE overhead */
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 183) int node_id;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 184) int generation;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 185) unsigned speed;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 186) };
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 187)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 188) /* This is our task struct. It's used for the packet complete callback. */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 189) struct fwnet_packet_task {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 190) struct fw_transaction transaction;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 191) struct rfc2734_header hdr;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 192) struct sk_buff *skb;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 193) struct fwnet_device *dev;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 194)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 195) int outstanding_pkts;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 196) u64 fifo_addr;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 197) u16 dest_node;
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 198) u16 max_payload;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 199) u8 generation;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 200) u8 speed;
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 201) u8 enqueued;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 202) };
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 203)
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 204) /*
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 205) * Get fifo address embedded in hwaddr
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 206) */
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 207) static __u64 fwnet_hwaddr_fifo(union fwnet_hwaddr *ha)
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 208) {
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 209) return (u64)get_unaligned_be16(&ha->uc.fifo_hi) << 32
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 210) | get_unaligned_be32(&ha->uc.fifo_lo);
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 211) }
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 212)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 213) /*
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 214) * saddr == NULL means use device source address.
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 215) * daddr == NULL means leave destination address (eg unresolved arp).
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 216) */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 217) static int fwnet_header_create(struct sk_buff *skb, struct net_device *net,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 218) unsigned short type, const void *daddr,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 219) const void *saddr, unsigned len)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 220) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 221) struct fwnet_header *h;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 222)
d58ff35122847 drivers/firewire/net.c (Johannes Berg 2017-06-16 14:29:23 +0200 223) h = skb_push(skb, sizeof(*h));
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 224) put_unaligned_be16(type, &h->h_proto);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 225)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 226) if (net->flags & (IFF_LOOPBACK | IFF_NOARP)) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 227) memset(h->h_dest, 0, net->addr_len);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 228)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 229) return net->hard_header_len;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 230) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 231)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 232) if (daddr) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 233) memcpy(h->h_dest, daddr, net->addr_len);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 234)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 235) return net->hard_header_len;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 236) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 237)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 238) return -net->hard_header_len;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 239) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 240)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 241) static int fwnet_header_cache(const struct neighbour *neigh,
e69dd336ee3a0 drivers/firewire/net.c (David S. Miller 2011-07-12 23:28:12 -0700 242) struct hh_cache *hh, __be16 type)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 243) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 244) struct net_device *net;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 245) struct fwnet_header *h;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 246)
e69dd336ee3a0 drivers/firewire/net.c (David S. Miller 2011-07-12 23:28:12 -0700 247) if (type == cpu_to_be16(ETH_P_802_3))
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 248) return -1;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 249) net = neigh->dev;
825863408a167 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-01-19 22:03:07 +0000 250) h = (struct fwnet_header *)((u8 *)hh->hh_data + HH_DATA_OFF(sizeof(*h)));
e69dd336ee3a0 drivers/firewire/net.c (David S. Miller 2011-07-12 23:28:12 -0700 251) h->h_proto = type;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 252) memcpy(h->h_dest, neigh->ha, net->addr_len);
c305c6ae79e2c drivers/firewire/net.c (Eric Dumazet 2019-11-07 18:29:11 -0800 253)
c305c6ae79e2c drivers/firewire/net.c (Eric Dumazet 2019-11-07 18:29:11 -0800 254) /* Pairs with the READ_ONCE() in neigh_resolve_output(),
c305c6ae79e2c drivers/firewire/net.c (Eric Dumazet 2019-11-07 18:29:11 -0800 255) * neigh_hh_output() and neigh_update_hhs().
c305c6ae79e2c drivers/firewire/net.c (Eric Dumazet 2019-11-07 18:29:11 -0800 256) */
c305c6ae79e2c drivers/firewire/net.c (Eric Dumazet 2019-11-07 18:29:11 -0800 257) smp_store_release(&hh->hh_len, FWNET_HLEN);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 258)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 259) return 0;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 260) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 261)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 262) /* Called by Address Resolution module to notify changes in address. */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 263) static void fwnet_header_cache_update(struct hh_cache *hh,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 264) const struct net_device *net, const unsigned char *haddr)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 265) {
825863408a167 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-01-19 22:03:07 +0000 266) memcpy((u8 *)hh->hh_data + HH_DATA_OFF(FWNET_HLEN), haddr, net->addr_len);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 267) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 268)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 269) static int fwnet_header_parse(const struct sk_buff *skb, unsigned char *haddr)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 270) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 271) memcpy(haddr, skb->dev->dev_addr, FWNET_ALEN);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 272)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 273) return FWNET_ALEN;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 274) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 275)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 276) static const struct header_ops fwnet_header_ops = {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 277) .create = fwnet_header_create,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 278) .cache = fwnet_header_cache,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 279) .cache_update = fwnet_header_cache_update,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 280) .parse = fwnet_header_parse,
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 281) };
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 282)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 283) /* FIXME: is this correct for all cases? */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 284) static bool fwnet_frag_overlap(struct fwnet_partial_datagram *pd,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 285) unsigned offset, unsigned len)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 286) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 287) struct fwnet_fragment_info *fi;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 288) unsigned end = offset + len;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 289)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 290) list_for_each_entry(fi, &pd->fi_list, fi_link)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 291) if (offset < fi->offset + fi->len && end > fi->offset)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 292) return true;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 293)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 294) return false;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 295) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 296)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 297) /* Assumes that new fragment does not overlap any existing fragments */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 298) static struct fwnet_fragment_info *fwnet_frag_new(
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 299) struct fwnet_partial_datagram *pd, unsigned offset, unsigned len)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 300) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 301) struct fwnet_fragment_info *fi, *fi2, *new;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 302) struct list_head *list;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 303)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 304) list = &pd->fi_list;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 305) list_for_each_entry(fi, &pd->fi_list, fi_link) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 306) if (fi->offset + fi->len == offset) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 307) /* The new fragment can be tacked on to the end */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 308) /* Did the new fragment plug a hole? */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 309) fi2 = list_entry(fi->fi_link.next,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 310) struct fwnet_fragment_info, fi_link);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 311) if (fi->offset + fi->len == fi2->offset) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 312) /* glue fragments together */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 313) fi->len += len + fi2->len;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 314) list_del(&fi2->fi_link);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 315) kfree(fi2);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 316) } else {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 317) fi->len += len;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 318) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 319)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 320) return fi;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 321) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 322) if (offset + len == fi->offset) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 323) /* The new fragment can be tacked on to the beginning */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 324) /* Did the new fragment plug a hole? */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 325) fi2 = list_entry(fi->fi_link.prev,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 326) struct fwnet_fragment_info, fi_link);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 327) if (fi2->offset + fi2->len == fi->offset) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 328) /* glue fragments together */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 329) fi2->len += fi->len + len;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 330) list_del(&fi->fi_link);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 331) kfree(fi);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 332)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 333) return fi2;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 334) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 335) fi->offset = offset;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 336) fi->len += len;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 337)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 338) return fi;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 339) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 340) if (offset > fi->offset + fi->len) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 341) list = &fi->fi_link;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 342) break;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 343) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 344) if (offset + len < fi->offset) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 345) list = fi->fi_link.prev;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 346) break;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 347) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 348) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 349)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 350) new = kmalloc(sizeof(*new), GFP_ATOMIC);
cfb0c9d1ffbf9 drivers/firewire/net.c (Stefan Richter 2013-03-24 17:32:00 +0100 351) if (!new)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 352) return NULL;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 353)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 354) new->offset = offset;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 355) new->len = len;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 356) list_add(&new->fi_link, list);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 357)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 358) return new;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 359) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 360)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 361) static struct fwnet_partial_datagram *fwnet_pd_new(struct net_device *net,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 362) struct fwnet_peer *peer, u16 datagram_label, unsigned dg_size,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 363) void *frag_buf, unsigned frag_off, unsigned frag_len)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 364) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 365) struct fwnet_partial_datagram *new;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 366) struct fwnet_fragment_info *fi;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 367)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 368) new = kmalloc(sizeof(*new), GFP_ATOMIC);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 369) if (!new)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 370) goto fail;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 371)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 372) INIT_LIST_HEAD(&new->fi_list);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 373) fi = fwnet_frag_new(new, frag_off, frag_len);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 374) if (fi == NULL)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 375) goto fail_w_new;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 376)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 377) new->datagram_label = datagram_label;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 378) new->datagram_size = dg_size;
825863408a167 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-01-19 22:03:07 +0000 379) new->skb = dev_alloc_skb(dg_size + LL_RESERVED_SPACE(net));
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 380) if (new->skb == NULL)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 381) goto fail_w_fi;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 382)
825863408a167 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-01-19 22:03:07 +0000 383) skb_reserve(new->skb, LL_RESERVED_SPACE(net));
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 384) new->pbuf = skb_put(new->skb, dg_size);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 385) memcpy(new->pbuf + frag_off, frag_buf, frag_len);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 386) list_add_tail(&new->pd_link, &peer->pd_list);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 387)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 388) return new;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 389)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 390) fail_w_fi:
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 391) kfree(fi);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 392) fail_w_new:
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 393) kfree(new);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 394) fail:
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 395) return NULL;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 396) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 397)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 398) static struct fwnet_partial_datagram *fwnet_pd_find(struct fwnet_peer *peer,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 399) u16 datagram_label)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 400) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 401) struct fwnet_partial_datagram *pd;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 402)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 403) list_for_each_entry(pd, &peer->pd_list, pd_link)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 404) if (pd->datagram_label == datagram_label)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 405) return pd;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 406)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 407) return NULL;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 408) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 409)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 410)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 411) static void fwnet_pd_delete(struct fwnet_partial_datagram *old)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 412) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 413) struct fwnet_fragment_info *fi, *n;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 414)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 415) list_for_each_entry_safe(fi, n, &old->fi_list, fi_link)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 416) kfree(fi);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 417)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 418) list_del(&old->pd_link);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 419) dev_kfree_skb_any(old->skb);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 420) kfree(old);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 421) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 422)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 423) static bool fwnet_pd_update(struct fwnet_peer *peer,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 424) struct fwnet_partial_datagram *pd, void *frag_buf,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 425) unsigned frag_off, unsigned frag_len)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 426) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 427) if (fwnet_frag_new(pd, frag_off, frag_len) == NULL)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 428) return false;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 429)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 430) memcpy(pd->pbuf + frag_off, frag_buf, frag_len);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 431)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 432) /*
25985edcedea6 drivers/firewire/net.c (Lucas De Marchi 2011-03-30 22:57:33 -0300 433) * Move list entry to beginning of list so that oldest partial
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 434) * datagrams percolate to the end of the list
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 435) */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 436) list_move_tail(&pd->pd_link, &peer->pd_list);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 437)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 438) return true;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 439) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 440)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 441) static bool fwnet_pd_is_complete(struct fwnet_partial_datagram *pd)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 442) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 443) struct fwnet_fragment_info *fi;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 444)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 445) fi = list_entry(pd->fi_list.next, struct fwnet_fragment_info, fi_link);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 446)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 447) return fi->len == pd->datagram_size;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 448) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 449)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 450) /* caller must hold dev->lock */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 451) static struct fwnet_peer *fwnet_peer_find_by_guid(struct fwnet_device *dev,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 452) u64 guid)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 453) {
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 454) struct fwnet_peer *peer;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 455)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 456) list_for_each_entry(peer, &dev->peer_list, peer_link)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 457) if (peer->guid == guid)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 458) return peer;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 459)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 460) return NULL;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 461) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 462)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 463) /* caller must hold dev->lock */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 464) static struct fwnet_peer *fwnet_peer_find_by_node_id(struct fwnet_device *dev,
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 465) int node_id, int generation)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 466) {
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 467) struct fwnet_peer *peer;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 468)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 469) list_for_each_entry(peer, &dev->peer_list, peer_link)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 470) if (peer->node_id == node_id &&
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 471) peer->generation == generation)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 472) return peer;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 473)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 474) return NULL;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 475) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 476)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 477) /* See IEEE 1394-2008 table 6-4, table 8-8, table 16-18. */
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 478) static unsigned fwnet_max_payload(unsigned max_rec, unsigned speed)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 479) {
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 480) max_rec = min(max_rec, speed + 8);
4ec4a67aa1002 drivers/firewire/net.c (Stefan Richter 2011-09-19 00:20:48 +0200 481) max_rec = clamp(max_rec, 8U, 11U); /* 512...4096 */
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 482)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 483) return (1 << (max_rec + 1)) - RFC2374_FRAG_HDR_SIZE;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 484) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 485)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 486)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 487) static int fwnet_finish_incoming_packet(struct net_device *net,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 488) struct sk_buff *skb, u16 source_node_id,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 489) bool is_broadcast, u16 ether_type)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 490) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 491) struct fwnet_device *dev;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 492) int status;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 493) __be64 guid;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 494)
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 495) switch (ether_type) {
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 496) case ETH_P_ARP:
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 497) case ETH_P_IP:
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 498) #if IS_ENABLED(CONFIG_IPV6)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 499) case ETH_P_IPV6:
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 500) #endif
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 501) break;
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 502) default:
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 503) goto err;
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 504) }
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 505)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 506) dev = netdev_priv(net);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 507) /* Write metadata, and then pass to the receive level */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 508) skb->dev = net;
b577d7e2ad50c drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-01-19 21:43:40 +0000 509) skb->ip_summed = CHECKSUM_NONE;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 510)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 511) /*
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 512) * Parse the encapsulation header. This actually does the job of
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 513) * converting to an ethernet-like pseudo frame header.
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 514) */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 515) guid = cpu_to_be64(dev->card->guid);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 516) if (dev_hard_header(skb, net, ether_type,
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 517) is_broadcast ? net->broadcast : net->dev_addr,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 518) NULL, skb->len) >= 0) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 519) struct fwnet_header *eth;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 520) u16 *rawp;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 521) __be16 protocol;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 522)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 523) skb_reset_mac_header(skb);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 524) skb_pull(skb, sizeof(*eth));
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 525) eth = (struct fwnet_header *)skb_mac_header(skb);
021b97e469714 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:48 +0000 526) if (fwnet_hwaddr_is_multicast(eth->h_dest)) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 527) if (memcmp(eth->h_dest, net->broadcast,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 528) net->addr_len) == 0)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 529) skb->pkt_type = PACKET_BROADCAST;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 530) #if 0
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 531) else
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 532) skb->pkt_type = PACKET_MULTICAST;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 533) #endif
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 534) } else {
156ce867a6725 drivers/firewire/net.c (Stefan Richter 2009-06-14 11:46:57 +0200 535) if (memcmp(eth->h_dest, net->dev_addr, net->addr_len))
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 536) skb->pkt_type = PACKET_OTHERHOST;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 537) }
e5c5d22e8dcf7 drivers/firewire/net.c (Simon Horman 2013-03-28 13:38:25 +0900 538) if (ntohs(eth->h_proto) >= ETH_P_802_3_MIN) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 539) protocol = eth->h_proto;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 540) } else {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 541) rawp = (u16 *)skb->data;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 542) if (*rawp == 0xffff)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 543) protocol = htons(ETH_P_802_3);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 544) else
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 545) protocol = htons(ETH_P_802_2);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 546) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 547) skb->protocol = protocol;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 548) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 549) status = netif_rx(skb);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 550) if (status == NET_RX_DROP) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 551) net->stats.rx_errors++;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 552) net->stats.rx_dropped++;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 553) } else {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 554) net->stats.rx_packets++;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 555) net->stats.rx_bytes += skb->len;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 556) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 557)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 558) return 0;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 559)
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 560) err:
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 561) net->stats.rx_errors++;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 562) net->stats.rx_dropped++;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 563)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 564) dev_kfree_skb_any(skb);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 565)
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 566) return -ENOENT;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 567) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 568)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 569) static int fwnet_incoming_packet(struct fwnet_device *dev, __be32 *buf, int len,
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 570) int source_node_id, int generation,
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 571) bool is_broadcast)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 572) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 573) struct sk_buff *skb;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 574) struct net_device *net = dev->netdev;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 575) struct rfc2734_header hdr;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 576) unsigned lf;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 577) unsigned long flags;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 578) struct fwnet_peer *peer;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 579) struct fwnet_partial_datagram *pd;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 580) int fg_off;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 581) int dg_size;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 582) u16 datagram_label;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 583) int retval;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 584) u16 ether_type;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 585)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 586) if (len <= RFC2374_UNFRAG_HDR_SIZE)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 587) return 0;
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 588)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 589) hdr.w0 = be32_to_cpu(buf[0]);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 590) lf = fwnet_get_hdr_lf(&hdr);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 591) if (lf == RFC2374_HDR_UNFRAG) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 592) /*
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 593) * An unfragmented datagram has been received by the ieee1394
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 594) * bus. Build an skbuff around it so we can pass it to the
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 595) * high level network layer.
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 596) */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 597) ether_type = fwnet_get_hdr_ether_type(&hdr);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 598) buf++;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 599) len -= RFC2374_UNFRAG_HDR_SIZE;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 600)
825863408a167 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-01-19 22:03:07 +0000 601) skb = dev_alloc_skb(len + LL_RESERVED_SPACE(net));
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 602) if (unlikely(!skb)) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 603) net->stats.rx_dropped++;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 604)
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 605) return -ENOMEM;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 606) }
825863408a167 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-01-19 22:03:07 +0000 607) skb_reserve(skb, LL_RESERVED_SPACE(net));
59ae1d127ac0a drivers/firewire/net.c (Johannes Berg 2017-06-16 14:29:20 +0200 608) skb_put_data(skb, buf, len);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 609)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 610) return fwnet_finish_incoming_packet(net, skb, source_node_id,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 611) is_broadcast, ether_type);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 612) }
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 613)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 614) /* A datagram fragment has been received, now the fun begins. */
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 615)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 616) if (len <= RFC2374_FRAG_HDR_SIZE)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 617) return 0;
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 618)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 619) hdr.w1 = ntohl(buf[1]);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 620) buf += 2;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 621) len -= RFC2374_FRAG_HDR_SIZE;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 622) if (lf == RFC2374_HDR_FIRSTFRAG) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 623) ether_type = fwnet_get_hdr_ether_type(&hdr);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 624) fg_off = 0;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 625) } else {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 626) ether_type = 0;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 627) fg_off = fwnet_get_hdr_fg_off(&hdr);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 628) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 629) datagram_label = fwnet_get_hdr_dgl(&hdr);
e9300a4b7bbae drivers/firewire/net.c (Stefan Richter 2016-10-30 17:32:01 +0100 630) dg_size = fwnet_get_hdr_dg_size(&hdr);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 631)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 632) if (fg_off + len > dg_size)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 633) return 0;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 634)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 635) spin_lock_irqsave(&dev->lock, flags);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 636)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 637) peer = fwnet_peer_find_by_node_id(dev, source_node_id, generation);
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 638) if (!peer) {
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 639) retval = -ENOENT;
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 640) goto fail;
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 641) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 642)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 643) pd = fwnet_pd_find(peer, datagram_label);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 644) if (pd == NULL) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 645) while (peer->pdg_size >= FWNET_MAX_FRAGMENTS) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 646) /* remove the oldest */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 647) fwnet_pd_delete(list_first_entry(&peer->pd_list,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 648) struct fwnet_partial_datagram, pd_link));
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 649) peer->pdg_size--;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 650) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 651) pd = fwnet_pd_new(net, peer, datagram_label,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 652) dg_size, buf, fg_off, len);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 653) if (pd == NULL) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 654) retval = -ENOMEM;
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 655) goto fail;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 656) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 657) peer->pdg_size++;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 658) } else {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 659) if (fwnet_frag_overlap(pd, fg_off, len) ||
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 660) pd->datagram_size != dg_size) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 661) /*
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 662) * Differing datagram sizes or overlapping fragments,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 663) * discard old datagram and start a new one.
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 664) */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 665) fwnet_pd_delete(pd);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 666) pd = fwnet_pd_new(net, peer, datagram_label,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 667) dg_size, buf, fg_off, len);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 668) if (pd == NULL) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 669) peer->pdg_size--;
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 670) retval = -ENOMEM;
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 671) goto fail;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 672) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 673) } else {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 674) if (!fwnet_pd_update(peer, pd, buf, fg_off, len)) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 675) /*
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 676) * Couldn't save off fragment anyway
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 677) * so might as well obliterate the
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 678) * datagram now.
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 679) */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 680) fwnet_pd_delete(pd);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 681) peer->pdg_size--;
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 682) retval = -ENOMEM;
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 683) goto fail;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 684) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 685) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 686) } /* new datagram or add to existing one */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 687)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 688) if (lf == RFC2374_HDR_FIRSTFRAG)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 689) pd->ether_type = ether_type;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 690)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 691) if (fwnet_pd_is_complete(pd)) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 692) ether_type = pd->ether_type;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 693) peer->pdg_size--;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 694) skb = skb_get(pd->skb);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 695) fwnet_pd_delete(pd);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 696)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 697) spin_unlock_irqrestore(&dev->lock, flags);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 698)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 699) return fwnet_finish_incoming_packet(net, skb, source_node_id,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 700) false, ether_type);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 701) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 702) /*
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 703) * Datagram is not complete, we're done for the
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 704) * moment.
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 705) */
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 706) retval = 0;
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 707) fail:
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 708) spin_unlock_irqrestore(&dev->lock, flags);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 709)
1bf145fed5725 drivers/firewire/net.c (Stefan Richter 2010-08-16 23:45:54 +0200 710) return retval;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 711) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 712)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 713) static void fwnet_receive_packet(struct fw_card *card, struct fw_request *r,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 714) int tcode, int destination, int source, int generation,
33e553fe2b4a9 drivers/firewire/net.c (Stefan Richter 2010-06-20 22:50:35 +0200 715) unsigned long long offset, void *payload, size_t length,
33e553fe2b4a9 drivers/firewire/net.c (Stefan Richter 2010-06-20 22:50:35 +0200 716) void *callback_data)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 717) {
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 718) struct fwnet_device *dev = callback_data;
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 719) int rcode;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 720)
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 721) if (destination == IEEE1394_ALL_NODES) {
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 722) kfree(r);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 723)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 724) return;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 725) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 726)
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 727) if (offset != dev->handler.offset)
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 728) rcode = RCODE_ADDRESS_ERROR;
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 729) else if (tcode != TCODE_WRITE_BLOCK_REQUEST)
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 730) rcode = RCODE_TYPE_ERROR;
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 731) else if (fwnet_incoming_packet(dev, payload, length,
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 732) source, generation, false) != 0) {
8408dc1c14c11 drivers/firewire/net.c (Stefan Richter 2012-02-19 12:48:36 +0100 733) dev_err(&dev->netdev->dev, "incoming packet failure\n");
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 734) rcode = RCODE_CONFLICT_ERROR;
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 735) } else
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 736) rcode = RCODE_COMPLETE;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 737)
00635b8ee2b56 drivers/firewire/net.c (Stefan Richter 2009-06-16 22:35:32 +0200 738) fw_send_response(card, r, rcode);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 739) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 740)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 741) static int gasp_source_id(__be32 *p)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 742) {
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 743) return be32_to_cpu(p[0]) >> 16;
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 744) }
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 745)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 746) static u32 gasp_specifier_id(__be32 *p)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 747) {
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 748) return (be32_to_cpu(p[0]) & 0xffff) << 8 |
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 749) (be32_to_cpu(p[1]) & 0xff000000) >> 24;
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 750) }
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 751)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 752) static u32 gasp_version(__be32 *p)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 753) {
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 754) return be32_to_cpu(p[1]) & 0xffffff;
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 755) }
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 756)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 757) static void fwnet_receive_broadcast(struct fw_iso_context *context,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 758) u32 cycle, size_t header_length, void *header, void *data)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 759) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 760) struct fwnet_device *dev;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 761) struct fw_iso_packet packet;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 762) __be16 *hdr_ptr;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 763) __be32 *buf_ptr;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 764) int retval;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 765) u32 length;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 766) unsigned long offset;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 767) unsigned long flags;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 768)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 769) dev = data;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 770) hdr_ptr = header;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 771) length = be16_to_cpup(hdr_ptr);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 772)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 773) spin_lock_irqsave(&dev->lock, flags);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 774)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 775) offset = dev->rcv_buffer_size * dev->broadcast_rcv_next_ptr;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 776) buf_ptr = dev->broadcast_rcv_buffer_ptrs[dev->broadcast_rcv_next_ptr++];
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 777) if (dev->broadcast_rcv_next_ptr == dev->num_broadcast_rcv_ptrs)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 778) dev->broadcast_rcv_next_ptr = 0;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 779)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 780) spin_unlock_irqrestore(&dev->lock, flags);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 781)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 782) if (length > IEEE1394_GASP_HDR_SIZE &&
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 783) gasp_specifier_id(buf_ptr) == IANA_SPECIFIER_ID &&
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 784) (gasp_version(buf_ptr) == RFC2734_SW_VERSION
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 785) #if IS_ENABLED(CONFIG_IPV6)
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 786) || gasp_version(buf_ptr) == RFC3146_SW_VERSION
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 787) #endif
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 788) ))
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 789) fwnet_incoming_packet(dev, buf_ptr + 2,
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 790) length - IEEE1394_GASP_HDR_SIZE,
667121ace9dba drivers/firewire/net.c (Stefan Richter 2016-10-29 21:28:18 +0200 791) gasp_source_id(buf_ptr),
9d2373420900a drivers/firewire/net.c (Stephan Gatzka 2012-11-28 20:04:32 +0100 792) context->card->generation, true);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 793)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 794) packet.payload_length = dev->rcv_buffer_size;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 795) packet.interrupt = 1;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 796) packet.skip = 0;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 797) packet.tag = 3;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 798) packet.sy = 0;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 799) packet.header_length = IEEE1394_GASP_HDR_SIZE;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 800)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 801) spin_lock_irqsave(&dev->lock, flags);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 802)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 803) retval = fw_iso_context_queue(dev->broadcast_rcv_context, &packet,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 804) &dev->broadcast_rcv_buffer, offset);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 805)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 806) spin_unlock_irqrestore(&dev->lock, flags);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 807)
13882a82ee164 drivers/firewire/net.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 808) if (retval >= 0)
13882a82ee164 drivers/firewire/net.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 809) fw_iso_context_queue_flush(dev->broadcast_rcv_context);
13882a82ee164 drivers/firewire/net.c (Clemens Ladisch 2011-05-02 09:33:56 +0200 810) else
8408dc1c14c11 drivers/firewire/net.c (Stefan Richter 2012-02-19 12:48:36 +0100 811) dev_err(&dev->netdev->dev, "requeue failed\n");
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 812) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 813)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 814) static struct kmem_cache *fwnet_packet_task_cache;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 815)
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 816) static void fwnet_free_ptask(struct fwnet_packet_task *ptask)
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 817) {
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 818) dev_kfree_skb_any(ptask->skb);
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 819) kmem_cache_free(fwnet_packet_task_cache, ptask);
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 820) }
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 821)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 822) /* Caller must hold dev->lock. */
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 823) static void dec_queued_datagrams(struct fwnet_device *dev)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 824) {
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 825) if (--dev->queued_datagrams == FWNET_MIN_QUEUED_DATAGRAMS)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 826) netif_wake_queue(dev->netdev);
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 827) }
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 828)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 829) static int fwnet_send_packet(struct fwnet_packet_task *ptask);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 830)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 831) static void fwnet_transmit_packet_done(struct fwnet_packet_task *ptask)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 832) {
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 833) struct fwnet_device *dev = ptask->dev;
902bca00dc6e3 drivers/firewire/net.c (Stefan Richter 2010-11-06 12:36:13 +0100 834) struct sk_buff *skb = ptask->skb;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 835) unsigned long flags;
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 836) bool free;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 837)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 838) spin_lock_irqsave(&dev->lock, flags);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 839)
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 840) ptask->outstanding_pkts--;
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 841)
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 842) /* Check whether we or the networking TX soft-IRQ is last user. */
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 843) free = (ptask->outstanding_pkts == 0 && ptask->enqueued);
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 844) if (free)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 845) dec_queued_datagrams(dev);
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 846)
902bca00dc6e3 drivers/firewire/net.c (Stefan Richter 2010-11-06 12:36:13 +0100 847) if (ptask->outstanding_pkts == 0) {
902bca00dc6e3 drivers/firewire/net.c (Stefan Richter 2010-11-06 12:36:13 +0100 848) dev->netdev->stats.tx_packets++;
902bca00dc6e3 drivers/firewire/net.c (Stefan Richter 2010-11-06 12:36:13 +0100 849) dev->netdev->stats.tx_bytes += skb->len;
902bca00dc6e3 drivers/firewire/net.c (Stefan Richter 2010-11-06 12:36:13 +0100 850) }
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 851)
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 852) spin_unlock_irqrestore(&dev->lock, flags);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 853)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 854) if (ptask->outstanding_pkts > 0) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 855) u16 dg_size;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 856) u16 fg_off;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 857) u16 datagram_label;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 858) u16 lf;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 859)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 860) /* Update the ptask to point to the next fragment and send it */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 861) lf = fwnet_get_hdr_lf(&ptask->hdr);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 862) switch (lf) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 863) case RFC2374_HDR_LASTFRAG:
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 864) case RFC2374_HDR_UNFRAG:
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 865) default:
8408dc1c14c11 drivers/firewire/net.c (Stefan Richter 2012-02-19 12:48:36 +0100 866) dev_err(&dev->netdev->dev,
8408dc1c14c11 drivers/firewire/net.c (Stefan Richter 2012-02-19 12:48:36 +0100 867) "outstanding packet %x lf %x, header %x,%x\n",
8408dc1c14c11 drivers/firewire/net.c (Stefan Richter 2012-02-19 12:48:36 +0100 868) ptask->outstanding_pkts, lf, ptask->hdr.w0,
8408dc1c14c11 drivers/firewire/net.c (Stefan Richter 2012-02-19 12:48:36 +0100 869) ptask->hdr.w1);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 870) BUG();
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 871)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 872) case RFC2374_HDR_FIRSTFRAG:
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 873) /* Set frag type here for future interior fragments */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 874) dg_size = fwnet_get_hdr_dg_size(&ptask->hdr);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 875) fg_off = ptask->max_payload - RFC2374_FRAG_HDR_SIZE;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 876) datagram_label = fwnet_get_hdr_dgl(&ptask->hdr);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 877) break;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 878)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 879) case RFC2374_HDR_INTFRAG:
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 880) dg_size = fwnet_get_hdr_dg_size(&ptask->hdr);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 881) fg_off = fwnet_get_hdr_fg_off(&ptask->hdr)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 882) + ptask->max_payload - RFC2374_FRAG_HDR_SIZE;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 883) datagram_label = fwnet_get_hdr_dgl(&ptask->hdr);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 884) break;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 885) }
902bca00dc6e3 drivers/firewire/net.c (Stefan Richter 2010-11-06 12:36:13 +0100 886)
9d2373420900a drivers/firewire/net.c (Stephan Gatzka 2012-11-28 20:04:32 +0100 887) if (ptask->dest_node == IEEE1394_ALL_NODES) {
9d2373420900a drivers/firewire/net.c (Stephan Gatzka 2012-11-28 20:04:32 +0100 888) skb_pull(skb,
9d2373420900a drivers/firewire/net.c (Stephan Gatzka 2012-11-28 20:04:32 +0100 889) ptask->max_payload + IEEE1394_GASP_HDR_SIZE);
9d2373420900a drivers/firewire/net.c (Stephan Gatzka 2012-11-28 20:04:32 +0100 890) } else {
9d2373420900a drivers/firewire/net.c (Stephan Gatzka 2012-11-28 20:04:32 +0100 891) skb_pull(skb, ptask->max_payload);
9d2373420900a drivers/firewire/net.c (Stephan Gatzka 2012-11-28 20:04:32 +0100 892) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 893) if (ptask->outstanding_pkts > 1) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 894) fwnet_make_sf_hdr(&ptask->hdr, RFC2374_HDR_INTFRAG,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 895) dg_size, fg_off, datagram_label);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 896) } else {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 897) fwnet_make_sf_hdr(&ptask->hdr, RFC2374_HDR_LASTFRAG,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 898) dg_size, fg_off, datagram_label);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 899) ptask->max_payload = skb->len + RFC2374_FRAG_HDR_SIZE;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 900) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 901) fwnet_send_packet(ptask);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 902) }
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 903)
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 904) if (free)
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 905) fwnet_free_ptask(ptask);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 906) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 907)
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 908) static void fwnet_transmit_packet_failed(struct fwnet_packet_task *ptask)
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 909) {
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 910) struct fwnet_device *dev = ptask->dev;
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 911) unsigned long flags;
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 912) bool free;
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 913)
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 914) spin_lock_irqsave(&dev->lock, flags);
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 915)
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 916) /* One fragment failed; don't try to send remaining fragments. */
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 917) ptask->outstanding_pkts = 0;
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 918)
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 919) /* Check whether we or the networking TX soft-IRQ is last user. */
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 920) free = ptask->enqueued;
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 921) if (free)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 922) dec_queued_datagrams(dev);
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 923)
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 924) dev->netdev->stats.tx_dropped++;
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 925) dev->netdev->stats.tx_errors++;
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 926)
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 927) spin_unlock_irqrestore(&dev->lock, flags);
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 928)
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 929) if (free)
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 930) fwnet_free_ptask(ptask);
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 931) }
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 932)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 933) static void fwnet_write_complete(struct fw_card *card, int rcode,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 934) void *payload, size_t length, void *data)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 935) {
c4d6fd40df38e drivers/firewire/net.c (Maxim Levitsky 2010-11-29 04:09:53 +0200 936) struct fwnet_packet_task *ptask = data;
c4d6fd40df38e drivers/firewire/net.c (Maxim Levitsky 2010-11-29 04:09:53 +0200 937) static unsigned long j;
c4d6fd40df38e drivers/firewire/net.c (Maxim Levitsky 2010-11-29 04:09:53 +0200 938) static int last_rcode, errors_skipped;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 939)
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 940) if (rcode == RCODE_COMPLETE) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 941) fwnet_transmit_packet_done(ptask);
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 942) } else {
c4d6fd40df38e drivers/firewire/net.c (Maxim Levitsky 2010-11-29 04:09:53 +0200 943) if (printk_timed_ratelimit(&j, 1000) || rcode != last_rcode) {
8408dc1c14c11 drivers/firewire/net.c (Stefan Richter 2012-02-19 12:48:36 +0100 944) dev_err(&ptask->dev->netdev->dev,
8408dc1c14c11 drivers/firewire/net.c (Stefan Richter 2012-02-19 12:48:36 +0100 945) "fwnet_write_complete failed: %x (skipped %d)\n",
8408dc1c14c11 drivers/firewire/net.c (Stefan Richter 2012-02-19 12:48:36 +0100 946) rcode, errors_skipped);
c4d6fd40df38e drivers/firewire/net.c (Maxim Levitsky 2010-11-29 04:09:53 +0200 947)
c4d6fd40df38e drivers/firewire/net.c (Maxim Levitsky 2010-11-29 04:09:53 +0200 948) errors_skipped = 0;
c4d6fd40df38e drivers/firewire/net.c (Maxim Levitsky 2010-11-29 04:09:53 +0200 949) last_rcode = rcode;
8987583366ae9 drivers/firewire/net.c (Stefan Richter 2014-02-18 22:25:15 +0100 950) } else {
c4d6fd40df38e drivers/firewire/net.c (Maxim Levitsky 2010-11-29 04:09:53 +0200 951) errors_skipped++;
8987583366ae9 drivers/firewire/net.c (Stefan Richter 2014-02-18 22:25:15 +0100 952) }
8987583366ae9 drivers/firewire/net.c (Stefan Richter 2014-02-18 22:25:15 +0100 953) fwnet_transmit_packet_failed(ptask);
7ee11fa8d0a84 drivers/firewire/net.c (Stefan Richter 2010-11-06 16:57:28 +0100 954) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 955) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 956)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 957) static int fwnet_send_packet(struct fwnet_packet_task *ptask)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 958) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 959) struct fwnet_device *dev;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 960) unsigned tx_len;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 961) struct rfc2734_header *bufhdr;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 962) unsigned long flags;
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 963) bool free;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 964)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 965) dev = ptask->dev;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 966) tx_len = ptask->max_payload;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 967) switch (fwnet_get_hdr_lf(&ptask->hdr)) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 968) case RFC2374_HDR_UNFRAG:
d58ff35122847 drivers/firewire/net.c (Johannes Berg 2017-06-16 14:29:23 +0200 969) bufhdr = skb_push(ptask->skb, RFC2374_UNFRAG_HDR_SIZE);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 970) put_unaligned_be32(ptask->hdr.w0, &bufhdr->w0);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 971) break;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 972)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 973) case RFC2374_HDR_FIRSTFRAG:
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 974) case RFC2374_HDR_INTFRAG:
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 975) case RFC2374_HDR_LASTFRAG:
d58ff35122847 drivers/firewire/net.c (Johannes Berg 2017-06-16 14:29:23 +0200 976) bufhdr = skb_push(ptask->skb, RFC2374_FRAG_HDR_SIZE);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 977) put_unaligned_be32(ptask->hdr.w0, &bufhdr->w0);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 978) put_unaligned_be32(ptask->hdr.w1, &bufhdr->w1);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 979) break;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 980)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 981) default:
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 982) BUG();
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 983) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 984) if (ptask->dest_node == IEEE1394_ALL_NODES) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 985) u8 *p;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 986) int generation;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 987) int node_id;
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 988) unsigned int sw_version;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 989)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 990) /* ptask->generation may not have been set yet */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 991) generation = dev->card->generation;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 992) smp_rmb();
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 993) node_id = dev->card->node_id;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 994)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 995) switch (ptask->skb->protocol) {
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 996) default:
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 997) sw_version = RFC2734_SW_VERSION;
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 998) break;
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 999) #if IS_ENABLED(CONFIG_IPV6)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1000) case htons(ETH_P_IPV6):
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1001) sw_version = RFC3146_SW_VERSION;
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1002) #endif
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1003) }
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1004)
9d2373420900a drivers/firewire/net.c (Stephan Gatzka 2012-11-28 20:04:32 +0100 1005) p = skb_push(ptask->skb, IEEE1394_GASP_HDR_SIZE);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1006) put_unaligned_be32(node_id << 16 | IANA_SPECIFIER_ID >> 8, p);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1007) put_unaligned_be32((IANA_SPECIFIER_ID & 0xff) << 24
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1008) | sw_version, &p[4]);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1009)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1010) /* We should not transmit if broadcast_channel.valid == 0. */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1011) fw_send_request(dev->card, &ptask->transaction,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1012) TCODE_STREAM_DATA,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1013) fw_stream_packet_destination_id(3,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1014) IEEE1394_BROADCAST_CHANNEL, 0),
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1015) generation, SCODE_100, 0ULL, ptask->skb->data,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1016) tx_len + 8, fwnet_write_complete, ptask);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1017)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1018) spin_lock_irqsave(&dev->lock, flags);
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1019)
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1020) /* If the AT tasklet already ran, we may be last user. */
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1021) free = (ptask->outstanding_pkts == 0 && !ptask->enqueued);
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1022) if (!free)
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1023) ptask->enqueued = true;
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1024) else
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1025) dec_queued_datagrams(dev);
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1026)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1027) spin_unlock_irqrestore(&dev->lock, flags);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1028)
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1029) goto out;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1030) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1031)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1032) fw_send_request(dev->card, &ptask->transaction,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1033) TCODE_WRITE_BLOCK_REQUEST, ptask->dest_node,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1034) ptask->generation, ptask->speed, ptask->fifo_addr,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1035) ptask->skb->data, tx_len, fwnet_write_complete, ptask);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1036)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1037) spin_lock_irqsave(&dev->lock, flags);
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1038)
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1039) /* If the AT tasklet already ran, we may be last user. */
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1040) free = (ptask->outstanding_pkts == 0 && !ptask->enqueued);
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1041) if (!free)
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1042) ptask->enqueued = true;
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1043) else
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1044) dec_queued_datagrams(dev);
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1045)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1046) spin_unlock_irqrestore(&dev->lock, flags);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1047)
860e9538a9482 drivers/firewire/net.c (Florian Westphal 2016-05-03 16:33:13 +0200 1048) netif_trans_update(dev->netdev);
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1049) out:
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1050) if (free)
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1051) fwnet_free_ptask(ptask);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1052)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1053) return 0;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1054) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1055)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1056) static void fwnet_fifo_stop(struct fwnet_device *dev)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1057) {
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1058) if (dev->local_fifo == FWNET_NO_FIFO_ADDR)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1059) return;
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1060)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1061) fw_core_remove_address_handler(&dev->handler);
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1062) dev->local_fifo = FWNET_NO_FIFO_ADDR;
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1063) }
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1064)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1065) static int fwnet_fifo_start(struct fwnet_device *dev)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1066) {
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1067) int retval;
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1068)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1069) if (dev->local_fifo != FWNET_NO_FIFO_ADDR)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1070) return 0;
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1071)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1072) dev->handler.length = 4096;
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1073) dev->handler.address_callback = fwnet_receive_packet;
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1074) dev->handler.callback_data = dev;
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1075)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1076) retval = fw_core_add_address_handler(&dev->handler,
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1077) &fw_high_memory_region);
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1078) if (retval < 0)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1079) return retval;
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1080)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1081) dev->local_fifo = dev->handler.offset;
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1082)
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1083) return 0;
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1084) }
9d39c90abc676 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:42:26 +0900 1085)
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1086) static void __fwnet_broadcast_stop(struct fwnet_device *dev)
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1087) {
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1088) unsigned u;
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1089)
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1090) if (dev->broadcast_state != FWNET_BROADCAST_ERROR) {
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1091) for (u = 0; u < FWNET_ISO_PAGE_COUNT; u++)
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1092) kunmap(dev->broadcast_rcv_buffer.pages[u]);
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1093) fw_iso_buffer_destroy(&dev->broadcast_rcv_buffer, dev->card);
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1094) }
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1095) if (dev->broadcast_rcv_context) {
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1096) fw_iso_context_destroy(dev->broadcast_rcv_context);
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1097) dev->broadcast_rcv_context = NULL;
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1098) }
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1099) kfree(dev->broadcast_rcv_buffer_ptrs);
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1100) dev->broadcast_rcv_buffer_ptrs = NULL;
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1101) dev->broadcast_state = FWNET_BROADCAST_ERROR;
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1102) }
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1103)
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1104) static void fwnet_broadcast_stop(struct fwnet_device *dev)
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1105) {
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1106) if (dev->broadcast_state == FWNET_BROADCAST_ERROR)
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1107) return;
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1108) fw_iso_context_stop(dev->broadcast_rcv_context);
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1109) __fwnet_broadcast_stop(dev);
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1110) }
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1111)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1112) static int fwnet_broadcast_start(struct fwnet_device *dev)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1113) {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1114) struct fw_iso_context *context;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1115) int retval;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1116) unsigned num_packets;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1117) unsigned max_receive;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1118) struct fw_iso_packet packet;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1119) unsigned long offset;
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1120) void **ptrptr;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1121) unsigned u;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1122)
2fbd8dfee1dc5 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:14 +0900 1123) if (dev->broadcast_state != FWNET_BROADCAST_ERROR)
2fbd8dfee1dc5 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:14 +0900 1124) return 0;
2fbd8dfee1dc5 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:14 +0900 1125)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1126) max_receive = 1U << (dev->card->max_receive + 1);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1127) num_packets = (FWNET_ISO_PAGE_COUNT * PAGE_SIZE) / max_receive;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1128)
6da2ec56059c3 drivers/firewire/net.c (Kees Cook 2018-06-12 13:55:00 -0700 1129) ptrptr = kmalloc_array(num_packets, sizeof(void *), GFP_KERNEL);
eac31d58ca281 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:55 +0900 1130) if (!ptrptr) {
eac31d58ca281 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:55 +0900 1131) retval = -ENOMEM;
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1132) goto failed;
eac31d58ca281 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:55 +0900 1133) }
eac31d58ca281 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:55 +0900 1134) dev->broadcast_rcv_buffer_ptrs = ptrptr;
eac31d58ca281 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:55 +0900 1135)
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1136) context = fw_iso_context_create(dev->card, FW_ISO_CONTEXT_RECEIVE,
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1137) IEEE1394_BROADCAST_CHANNEL,
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1138) dev->card->link_speed, 8,
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1139) fwnet_receive_broadcast, dev);
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1140) if (IS_ERR(context)) {
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1141) retval = PTR_ERR(context);
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1142) goto failed;
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1143) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1144)
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1145) retval = fw_iso_buffer_init(&dev->broadcast_rcv_buffer, dev->card,
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1146) FWNET_ISO_PAGE_COUNT, DMA_FROM_DEVICE);
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1147) if (retval < 0)
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1148) goto failed;
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1149)
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1150) dev->broadcast_state = FWNET_BROADCAST_STOPPED;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1151)
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1152) for (u = 0; u < FWNET_ISO_PAGE_COUNT; u++) {
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1153) void *ptr;
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1154) unsigned v;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1155)
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1156) ptr = kmap(dev->broadcast_rcv_buffer.pages[u]);
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1157) for (v = 0; v < num_packets / FWNET_ISO_PAGE_COUNT; v++)
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1158) *ptrptr++ = (void *) ((char *)ptr + v * max_receive);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1159) }
f2090594dd28c drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:25 +0900 1160) dev->broadcast_rcv_context = context;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1161)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1162) packet.payload_length = max_receive;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1163) packet.interrupt = 1;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1164) packet.skip = 0;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1165) packet.tag = 3;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1166) packet.sy = 0;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1167) packet.header_length = IEEE1394_GASP_HDR_SIZE;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1168) offset = 0;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1169)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1170) for (u = 0; u < num_packets; u++) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1171) retval = fw_iso_context_queue(context, &packet,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1172) &dev->broadcast_rcv_buffer, offset);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1173) if (retval < 0)
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1174) goto failed;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1175)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1176) offset += max_receive;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1177) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1178) dev->num_broadcast_rcv_ptrs = num_packets;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1179) dev->rcv_buffer_size = max_receive;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1180) dev->broadcast_rcv_next_ptr = 0U;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1181) retval = fw_iso_context_start(context, -1, 0,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1182) FW_ISO_CONTEXT_MATCH_ALL_TAGS); /* ??? sync */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1183) if (retval < 0)
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1184) goto failed;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1185)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1186) /* FIXME: adjust it according to the min. speed of all known peers? */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1187) dev->broadcast_xmt_max_payload = IEEE1394_MAX_PAYLOAD_S100
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1188) - IEEE1394_GASP_HDR_SIZE - RFC2374_UNFRAG_HDR_SIZE;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1189) dev->broadcast_state = FWNET_BROADCAST_RUNNING;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1190)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1191) return 0;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1192)
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1193) failed:
111534cd7a376 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:50 +0900 1194) __fwnet_broadcast_stop(dev);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1195) return retval;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1196) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1197)
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1198) static void set_carrier_state(struct fwnet_device *dev)
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1199) {
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1200) if (dev->peer_count > 1)
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1201) netif_carrier_on(dev->netdev);
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1202) else
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1203) netif_carrier_off(dev->netdev);
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1204) }
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1205)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1206) /* ifup */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1207) static int fwnet_open(struct net_device *net)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1208) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1209) struct fwnet_device *dev = netdev_priv(net);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1210) int ret;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1211)
2fbd8dfee1dc5 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:14 +0900 1212) ret = fwnet_broadcast_start(dev);
2fbd8dfee1dc5 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:14 +0900 1213) if (ret)
382c4b4090b73 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:57 +0000 1214) return ret;
2fbd8dfee1dc5 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:43:14 +0900 1215)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1216) netif_start_queue(net);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1217)
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1218) spin_lock_irq(&dev->lock);
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1219) set_carrier_state(dev);
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1220) spin_unlock_irq(&dev->lock);
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1221)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1222) return 0;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1223) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1224)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1225) /* ifdown */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1226) static int fwnet_stop(struct net_device *net)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1227) {
8559e7f0694e3 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:57 +0900 1228) struct fwnet_device *dev = netdev_priv(net);
8559e7f0694e3 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:57 +0900 1229)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1230) netif_stop_queue(net);
8559e7f0694e3 drivers/firewire/net.c (YOSHIFUJI Hideaki 2013-03-08 10:45:57 +0900 1231) fwnet_broadcast_stop(dev);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1232)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1233) return 0;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1234) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1235)
424efe9caf604 drivers/firewire/net.c (Stephen Hemminger 2009-08-31 19:50:51 +0000 1236) static netdev_tx_t fwnet_tx(struct sk_buff *skb, struct net_device *net)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1237) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1238) struct fwnet_header hdr_buf;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1239) struct fwnet_device *dev = netdev_priv(net);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1240) __be16 proto;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1241) u16 dest_node;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1242) unsigned max_payload;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1243) u16 dg_size;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1244) u16 *datagram_label_ptr;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1245) struct fwnet_packet_task *ptask;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1246) struct fwnet_peer *peer;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1247) unsigned long flags;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1248)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1249) spin_lock_irqsave(&dev->lock, flags);
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1250)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1251) /* Can this happen? */
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1252) if (netif_queue_stopped(dev->netdev)) {
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1253) spin_unlock_irqrestore(&dev->lock, flags);
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1254)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1255) return NETDEV_TX_BUSY;
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1256) }
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1257)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1258) ptask = kmem_cache_alloc(fwnet_packet_task_cache, GFP_ATOMIC);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1259) if (ptask == NULL)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1260) goto fail;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1261)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1262) skb = skb_share_check(skb, GFP_ATOMIC);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1263) if (!skb)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1264) goto fail;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1265)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1266) /*
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1267) * Make a copy of the driver-specific header.
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1268) * We might need to rebuild the header on tx failure.
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1269) */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1270) memcpy(&hdr_buf, skb->data, sizeof(hdr_buf));
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1271) proto = hdr_buf.h_proto;
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 1272)
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 1273) switch (proto) {
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 1274) case htons(ETH_P_ARP):
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 1275) case htons(ETH_P_IP):
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1276) #if IS_ENABLED(CONFIG_IPV6)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1277) case htons(ETH_P_IPV6):
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1278) #endif
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 1279) break;
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 1280) default:
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 1281) goto fail;
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 1282) }
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 1283)
18406d7e42a67 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:38 +0000 1284) skb_pull(skb, sizeof(hdr_buf));
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1285) dg_size = skb->len;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1286)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1287) /*
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1288) * Set the transmission type for the packet. ARP packets and IP
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1289) * broadcast packets are sent via GASP.
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1290) */
021b97e469714 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:48 +0000 1291) if (fwnet_hwaddr_is_multicast(hdr_buf.h_dest)) {
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1292) max_payload = dev->broadcast_xmt_max_payload;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1293) datagram_label_ptr = &dev->broadcast_xmt_datagramlabel;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1294)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1295) ptask->fifo_addr = FWNET_NO_FIFO_ADDR;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1296) ptask->generation = 0;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1297) ptask->dest_node = IEEE1394_ALL_NODES;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1298) ptask->speed = SCODE_100;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1299) } else {
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1300) union fwnet_hwaddr *ha = (union fwnet_hwaddr *)hdr_buf.h_dest;
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1301) __be64 guid = get_unaligned(&ha->uc.uniq_id);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1302) u8 generation;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1303)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1304) peer = fwnet_peer_find_by_guid(dev, be64_to_cpu(guid));
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1305) if (!peer)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1306) goto fail;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1307)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1308) generation = peer->generation;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1309) dest_node = peer->node_id;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1310) max_payload = peer->max_payload;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1311) datagram_label_ptr = &peer->datagram_label;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1312)
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1313) ptask->fifo_addr = fwnet_hwaddr_fifo(ha);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1314) ptask->generation = generation;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1315) ptask->dest_node = dest_node;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1316) ptask->speed = peer->speed;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1317) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1318)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1319) ptask->hdr.w0 = 0;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1320) ptask->hdr.w1 = 0;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1321) ptask->skb = skb;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1322) ptask->dev = dev;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1323)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1324) /* Does it all fit in one packet? */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1325) if (dg_size <= max_payload) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1326) fwnet_make_uf_hdr(&ptask->hdr, ntohs(proto));
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1327) ptask->outstanding_pkts = 1;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1328) max_payload = dg_size + RFC2374_UNFRAG_HDR_SIZE;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1329) } else {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1330) u16 datagram_label;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1331)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1332) max_payload -= RFC2374_FRAG_OVERHEAD;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1333) datagram_label = (*datagram_label_ptr)++;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1334) fwnet_make_ff_hdr(&ptask->hdr, ntohs(proto), dg_size,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1335) datagram_label);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1336) ptask->outstanding_pkts = DIV_ROUND_UP(dg_size, max_payload);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1337) max_payload += RFC2374_FRAG_HDR_SIZE;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1338) }
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1339)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1340) if (++dev->queued_datagrams == FWNET_MAX_QUEUED_DATAGRAMS)
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1341) netif_stop_queue(dev->netdev);
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1342)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1343) spin_unlock_irqrestore(&dev->lock, flags);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1344)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1345) ptask->max_payload = max_payload;
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1346) ptask->enqueued = 0;
110f82d7a2e0f drivers/firewire/net.c (Stefan Richter 2010-01-18 22:36:49 +0100 1347)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1348) fwnet_send_packet(ptask);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1349)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1350) return NETDEV_TX_OK;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1351)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1352) fail:
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1353) spin_unlock_irqrestore(&dev->lock, flags);
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1354)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1355) if (ptask)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1356) kmem_cache_free(fwnet_packet_task_cache, ptask);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1357)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1358) if (skb != NULL)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1359) dev_kfree_skb(skb);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1360)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1361) net->stats.tx_dropped++;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1362) net->stats.tx_errors++;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1363)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1364) /*
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1365) * FIXME: According to a patch from 2003-02-26, "returning non-zero
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1366) * causes serious problems" here, allegedly. Before that patch,
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1367) * -ERRNO was returned which is not appropriate under Linux 2.6.
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1368) * Perhaps more needs to be done? Stop the queue in serious
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1369) * conditions and restart it elsewhere?
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1370) */
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1371) return NETDEV_TX_OK;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1372) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1373)
18bb36f9fab59 drivers/firewire/net.c (Maxim Levitsky 2010-12-08 04:22:57 +0200 1374) static const struct ethtool_ops fwnet_ethtool_ops = {
18bb36f9fab59 drivers/firewire/net.c (Maxim Levitsky 2010-12-08 04:22:57 +0200 1375) .get_link = ethtool_op_get_link,
18bb36f9fab59 drivers/firewire/net.c (Maxim Levitsky 2010-12-08 04:22:57 +0200 1376) };
18bb36f9fab59 drivers/firewire/net.c (Maxim Levitsky 2010-12-08 04:22:57 +0200 1377)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1378) static const struct net_device_ops fwnet_netdev_ops = {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1379) .ndo_open = fwnet_open,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1380) .ndo_stop = fwnet_stop,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1381) .ndo_start_xmit = fwnet_tx,
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1382) };
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1383)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1384) static void fwnet_init_dev(struct net_device *net)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1385) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1386) net->header_ops = &fwnet_header_ops;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1387) net->netdev_ops = &fwnet_netdev_ops;
1337f8535ac1f drivers/firewire/net.c (Stefan Richter 2009-06-14 11:47:44 +0200 1388) net->watchdog_timeo = 2 * HZ;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1389) net->flags = IFF_BROADCAST | IFF_MULTICAST;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1390) net->features = NETIF_F_HIGHDMA;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1391) net->addr_len = FWNET_ALEN;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1392) net->hard_header_len = FWNET_HLEN;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1393) net->type = ARPHRD_IEEE1394;
b2268830f5cf2 drivers/firewire/net.c (Stefan Richter 2010-11-14 14:35:40 +0100 1394) net->tx_queue_len = FWNET_TX_QUEUE_LEN;
18bb36f9fab59 drivers/firewire/net.c (Maxim Levitsky 2010-12-08 04:22:57 +0200 1395) net->ethtool_ops = &fwnet_ethtool_ops;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1396) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1397)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1398) /* caller must hold fwnet_device_mutex */
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1399) static struct fwnet_device *fwnet_dev_find(struct fw_card *card)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1400) {
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1401) struct fwnet_device *dev;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1402)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1403) list_for_each_entry(dev, &fwnet_device_list, dev_link)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1404) if (dev->card == card)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1405) return dev;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1406)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1407) return NULL;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1408) }
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1409)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1410) static int fwnet_add_peer(struct fwnet_device *dev,
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1411) struct fw_unit *unit, struct fw_device *device)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1412) {
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1413) struct fwnet_peer *peer;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1414)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1415) peer = kmalloc(sizeof(*peer), GFP_KERNEL);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1416) if (!peer)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1417) return -ENOMEM;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1418)
b01b4babbf204 drivers/firewire/net.c (Stefan Richter 2009-06-16 20:43:55 +0200 1419) dev_set_drvdata(&unit->device, peer);
b01b4babbf204 drivers/firewire/net.c (Stefan Richter 2009-06-16 20:43:55 +0200 1420)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1421) peer->dev = dev;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1422) peer->guid = (u64)device->config_rom[3] << 32 | device->config_rom[4];
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1423) INIT_LIST_HEAD(&peer->pd_list);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1424) peer->pdg_size = 0;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1425) peer->datagram_label = 0;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1426) peer->speed = device->max_speed;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1427) peer->max_payload = fwnet_max_payload(device->max_rec, peer->speed);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1428)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1429) peer->generation = device->generation;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1430) smp_rmb();
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1431) peer->node_id = device->node_id;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1432)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1433) spin_lock_irq(&dev->lock);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1434) list_add_tail(&peer->peer_link, &dev->peer_list);
18bb36f9fab59 drivers/firewire/net.c (Maxim Levitsky 2010-12-08 04:22:57 +0200 1435) dev->peer_count++;
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1436) set_carrier_state(dev);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1437) spin_unlock_irq(&dev->lock);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1438)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1439) return 0;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1440) }
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1441)
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1442) static int fwnet_probe(struct fw_unit *unit,
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1443) const struct ieee1394_device_id *id)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1444) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1445) struct fw_device *device = fw_parent_device(unit);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1446) struct fw_card *card = device->card;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1447) struct net_device *net;
b01b4babbf204 drivers/firewire/net.c (Stefan Richter 2009-06-16 20:43:55 +0200 1448) bool allocated_netdev = false;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1449) struct fwnet_device *dev;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1450) int ret;
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1451) union fwnet_hwaddr *ha;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1452)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1453) mutex_lock(&fwnet_device_mutex);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1454)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1455) dev = fwnet_dev_find(card);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1456) if (dev) {
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1457) net = dev->netdev;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1458) goto have_dev;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1459) }
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1460)
c835a67733149 drivers/firewire/net.c (Tom Gundersen 2014-07-14 16:37:24 +0200 1461) net = alloc_netdev(sizeof(*dev), "firewire%d", NET_NAME_UNKNOWN,
c835a67733149 drivers/firewire/net.c (Tom Gundersen 2014-07-14 16:37:24 +0200 1462) fwnet_init_dev);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1463) if (net == NULL) {
1118f8d048dd5 drivers/firewire/net.c (Daeseok Youn 2014-04-29 18:49:47 +0900 1464) mutex_unlock(&fwnet_device_mutex);
1118f8d048dd5 drivers/firewire/net.c (Daeseok Youn 2014-04-29 18:49:47 +0900 1465) return -ENOMEM;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1466) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1467)
b01b4babbf204 drivers/firewire/net.c (Stefan Richter 2009-06-16 20:43:55 +0200 1468) allocated_netdev = true;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1469) SET_NETDEV_DEV(net, card->device);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1470) dev = netdev_priv(net);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1471)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1472) spin_lock_init(&dev->lock);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1473) dev->broadcast_state = FWNET_BROADCAST_ERROR;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1474) dev->broadcast_rcv_context = NULL;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1475) dev->broadcast_xmt_max_payload = 0;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1476) dev->broadcast_xmt_datagramlabel = 0;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1477) dev->local_fifo = FWNET_NO_FIFO_ADDR;
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1478) dev->queued_datagrams = 0;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1479) INIT_LIST_HEAD(&dev->peer_list);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1480) dev->card = card;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1481) dev->netdev = net;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1482)
382c4b4090b73 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:57 +0000 1483) ret = fwnet_fifo_start(dev);
382c4b4090b73 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:57 +0000 1484) if (ret < 0)
382c4b4090b73 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:57 +0000 1485) goto out;
382c4b4090b73 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:57 +0000 1486) dev->local_fifo = dev->handler.offset;
382c4b4090b73 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:57 +0000 1487)
4adf7bf7bbaef drivers/firewire/net.c (Stefan Richter 2016-11-02 21:09:44 +0100 1488) /*
4adf7bf7bbaef drivers/firewire/net.c (Stefan Richter 2016-11-02 21:09:44 +0100 1489) * default MTU: RFC 2734 cl. 4, RFC 3146 cl. 4
4adf7bf7bbaef drivers/firewire/net.c (Stefan Richter 2016-11-02 21:09:44 +0100 1490) * maximum MTU: RFC 2734 cl. 4.2, fragment encapsulation header's
4adf7bf7bbaef drivers/firewire/net.c (Stefan Richter 2016-11-02 21:09:44 +0100 1491) * maximum possible datagram_size + 1 = 0xfff + 1
4adf7bf7bbaef drivers/firewire/net.c (Stefan Richter 2016-11-02 21:09:44 +0100 1492) */
89ab88b01bacc drivers/firewire/net.c (Stefan Richter 2016-10-23 16:30:56 +0200 1493) net->mtu = 1500U;
b3e3893e12536 drivers/firewire/net.c (Jarod Wilson 2016-10-20 13:55:22 -0400 1494) net->min_mtu = ETH_MIN_MTU;
4adf7bf7bbaef drivers/firewire/net.c (Stefan Richter 2016-11-02 21:09:44 +0100 1495) net->max_mtu = 4096U;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1496)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1497) /* Set our hardware address while we're at it */
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1498) ha = (union fwnet_hwaddr *)net->dev_addr;
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1499) put_unaligned_be64(card->guid, &ha->uc.uniq_id);
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1500) ha->uc.max_rec = dev->card->max_receive;
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1501) ha->uc.sspd = dev->card->link_speed;
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1502) put_unaligned_be16(dev->local_fifo >> 32, &ha->uc.fifo_hi);
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1503) put_unaligned_be32(dev->local_fifo & 0xffffffff, &ha->uc.fifo_lo);
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1504)
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1505) memset(net->broadcast, -1, net->addr_len);
6752c8db8e0cf drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:16 +0000 1506)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1507) ret = register_netdev(net);
8408dc1c14c11 drivers/firewire/net.c (Stefan Richter 2012-02-19 12:48:36 +0100 1508) if (ret)
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1509) goto out;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1510)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1511) list_add_tail(&dev->dev_link, &fwnet_device_list);
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1512) dev_notice(&net->dev, "IP over IEEE 1394 on card %s\n",
8408dc1c14c11 drivers/firewire/net.c (Stefan Richter 2012-02-19 12:48:36 +0100 1513) dev_name(card->device));
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1514) have_dev:
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1515) ret = fwnet_add_peer(dev, unit, device);
b01b4babbf204 drivers/firewire/net.c (Stefan Richter 2009-06-16 20:43:55 +0200 1516) if (ret && allocated_netdev) {
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1517) unregister_netdev(net);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1518) list_del(&dev->dev_link);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1519) out:
382c4b4090b73 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:57 +0000 1520) fwnet_fifo_stop(dev);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1521) free_netdev(net);
382c4b4090b73 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:57 +0000 1522) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1523)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1524) mutex_unlock(&fwnet_device_mutex);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1525)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1526) return ret;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1527) }
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1528)
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1529) /*
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1530) * FIXME abort partially sent fragmented datagrams,
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1531) * discard partially received fragmented datagrams
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1532) */
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1533) static void fwnet_update(struct fw_unit *unit)
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1534) {
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1535) struct fw_device *device = fw_parent_device(unit);
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1536) struct fwnet_peer *peer = dev_get_drvdata(&unit->device);
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1537) int generation;
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1538)
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1539) generation = device->generation;
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1540)
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1541) spin_lock_irq(&peer->dev->lock);
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1542) peer->node_id = device->node_id;
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1543) peer->generation = generation;
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1544) spin_unlock_irq(&peer->dev->lock);
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1545) }
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1546)
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1547) static void fwnet_remove_peer(struct fwnet_peer *peer, struct fwnet_device *dev)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1548) {
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1549) struct fwnet_partial_datagram *pd, *pd_next;
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1550)
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1551) spin_lock_irq(&dev->lock);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1552) list_del(&peer->peer_link);
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1553) dev->peer_count--;
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1554) set_carrier_state(dev);
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1555) spin_unlock_irq(&dev->lock);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1556)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1557) list_for_each_entry_safe(pd, pd_next, &peer->pd_list, pd_link)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1558) fwnet_pd_delete(pd);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1559)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1560) kfree(peer);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1561) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1562)
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1563) static void fwnet_remove(struct fw_unit *unit)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1564) {
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1565) struct fwnet_peer *peer = dev_get_drvdata(&unit->device);
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1566) struct fwnet_device *dev = peer->dev;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1567) struct net_device *net;
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1568) int i;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1569)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1570) mutex_lock(&fwnet_device_mutex);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1571)
74a145049938b drivers/firewire/net.c (Maxim Levitsky 2010-11-29 04:09:52 +0200 1572) net = dev->netdev;
74a145049938b drivers/firewire/net.c (Maxim Levitsky 2010-11-29 04:09:52 +0200 1573)
c16714704bb35 drivers/firewire/net.c (Stefan Richter 2010-12-17 22:22:33 +0100 1574) fwnet_remove_peer(peer, dev);
18bb36f9fab59 drivers/firewire/net.c (Maxim Levitsky 2010-12-08 04:22:57 +0200 1575)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1576) if (list_empty(&dev->peer_list)) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1577) unregister_netdev(net);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1578)
382c4b4090b73 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:57 +0000 1579) fwnet_fifo_stop(dev);
382c4b4090b73 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:25:57 +0000 1580)
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1581) for (i = 0; dev->queued_datagrams && i < 5; i++)
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1582) ssleep(1);
48553011cea50 drivers/firewire/net.c (Stefan Richter 2010-11-06 23:18:23 +0100 1583) WARN_ON(dev->queued_datagrams);
b01b4babbf204 drivers/firewire/net.c (Stefan Richter 2009-06-16 20:43:55 +0200 1584) list_del(&dev->dev_link);
b01b4babbf204 drivers/firewire/net.c (Stefan Richter 2009-06-16 20:43:55 +0200 1585)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1586) free_netdev(net);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1587) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1588)
5a124d382ea5c drivers/firewire/net.c (Stefan Richter 2009-06-14 11:45:27 +0200 1589) mutex_unlock(&fwnet_device_mutex);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1590) }
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1591)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1592) static const struct ieee1394_device_id fwnet_id_table[] = {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1593) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1594) .match_flags = IEEE1394_MATCH_SPECIFIER_ID |
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1595) IEEE1394_MATCH_VERSION,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1596) .specifier_id = IANA_SPECIFIER_ID,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1597) .version = RFC2734_SW_VERSION,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1598) },
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1599) #if IS_ENABLED(CONFIG_IPV6)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1600) {
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1601) .match_flags = IEEE1394_MATCH_SPECIFIER_ID |
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1602) IEEE1394_MATCH_VERSION,
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1603) .specifier_id = IANA_SPECIFIER_ID,
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1604) .version = RFC3146_SW_VERSION,
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1605) },
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1606) #endif
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1607) { }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1608) };
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1609)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1610) static struct fw_driver fwnet_driver = {
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1611) .driver = {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1612) .owner = THIS_MODULE,
59759ff6f151d drivers/firewire/net.c (Stefan Richter 2012-02-18 22:01:54 +0100 1613) .name = KBUILD_MODNAME,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1614) .bus = &fw_bus_type,
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1615) },
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1616) .probe = fwnet_probe,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1617) .update = fwnet_update,
94a87157cde95 drivers/firewire/net.c (Stefan Richter 2013-06-09 18:15:00 +0200 1618) .remove = fwnet_remove,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1619) .id_table = fwnet_id_table,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1620) };
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1621)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1622) static const u32 rfc2374_unit_directory_data[] = {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1623) 0x00040000, /* directory_length */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1624) 0x1200005e, /* unit_specifier_id: IANA */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1625) 0x81000003, /* textual descriptor offset */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1626) 0x13000001, /* unit_sw_version: RFC 2734 */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1627) 0x81000005, /* textual descriptor offset */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1628) 0x00030000, /* descriptor_length */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1629) 0x00000000, /* text */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1630) 0x00000000, /* minimal ASCII, en */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1631) 0x49414e41, /* I A N A */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1632) 0x00030000, /* descriptor_length */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1633) 0x00000000, /* text */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1634) 0x00000000, /* minimal ASCII, en */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1635) 0x49507634, /* I P v 4 */
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1636) };
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1637)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1638) static struct fw_descriptor rfc2374_unit_directory = {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1639) .length = ARRAY_SIZE(rfc2374_unit_directory_data),
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1640) .key = (CSR_DIRECTORY | CSR_UNIT) << 24,
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1641) .data = rfc2374_unit_directory_data
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1642) };
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1643)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1644) #if IS_ENABLED(CONFIG_IPV6)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1645) static const u32 rfc3146_unit_directory_data[] = {
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1646) 0x00040000, /* directory_length */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1647) 0x1200005e, /* unit_specifier_id: IANA */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1648) 0x81000003, /* textual descriptor offset */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1649) 0x13000002, /* unit_sw_version: RFC 3146 */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1650) 0x81000005, /* textual descriptor offset */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1651) 0x00030000, /* descriptor_length */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1652) 0x00000000, /* text */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1653) 0x00000000, /* minimal ASCII, en */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1654) 0x49414e41, /* I A N A */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1655) 0x00030000, /* descriptor_length */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1656) 0x00000000, /* text */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1657) 0x00000000, /* minimal ASCII, en */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1658) 0x49507636, /* I P v 6 */
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1659) };
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1660)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1661) static struct fw_descriptor rfc3146_unit_directory = {
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1662) .length = ARRAY_SIZE(rfc3146_unit_directory_data),
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1663) .key = (CSR_DIRECTORY | CSR_UNIT) << 24,
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1664) .data = rfc3146_unit_directory_data
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1665) };
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1666) #endif
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1667)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1668) static int __init fwnet_init(void)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1669) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1670) int err;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1671)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1672) err = fw_core_add_descriptor(&rfc2374_unit_directory);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1673) if (err)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1674) return err;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1675)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1676) #if IS_ENABLED(CONFIG_IPV6)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1677) err = fw_core_add_descriptor(&rfc3146_unit_directory);
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1678) if (err)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1679) goto out;
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1680) #endif
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1681)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1682) fwnet_packet_task_cache = kmem_cache_create("packet_task",
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1683) sizeof(struct fwnet_packet_task), 0, 0, NULL);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1684) if (!fwnet_packet_task_cache) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1685) err = -ENOMEM;
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1686) goto out2;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1687) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1688)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1689) err = driver_register(&fwnet_driver.driver);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1690) if (!err)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1691) return 0;
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1692)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1693) kmem_cache_destroy(fwnet_packet_task_cache);
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1694) out2:
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1695) #if IS_ENABLED(CONFIG_IPV6)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1696) fw_core_remove_descriptor(&rfc3146_unit_directory);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1697) out:
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1698) #endif
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1699) fw_core_remove_descriptor(&rfc2374_unit_directory);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1700)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1701) return err;
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1702) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1703) module_init(fwnet_init);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1704)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1705) static void __exit fwnet_cleanup(void)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1706) {
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1707) driver_unregister(&fwnet_driver.driver);
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1708) kmem_cache_destroy(fwnet_packet_task_cache);
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1709) #if IS_ENABLED(CONFIG_IPV6)
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1710) fw_core_remove_descriptor(&rfc3146_unit_directory);
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1711) #endif
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1712) fw_core_remove_descriptor(&rfc2374_unit_directory);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1713) }
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1714) module_exit(fwnet_cleanup);
c76acec6d5510 drivers/firewire/fw-ipv4.c (Jay Fenlason 2009-05-18 13:08:06 -0400 1715)
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1716) MODULE_AUTHOR("Jay Fenlason <fenlason@redhat.com>");
cb6bf35502d53 drivers/firewire/net.c (YOSHIFUJI Hideaki / 吉藤英明 2013-03-25 08:26:24 +0000 1717) MODULE_DESCRIPTION("IP over IEEE1394 as per RFC 2734/3146");
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1718) MODULE_LICENSE("GPL");
f91e3bd842ec6 drivers/firewire/net.c (Stefan Richter 2009-06-07 22:57:53 +0200 1719) MODULE_DEVICE_TABLE(ieee1394, fwnet_id_table);
VisionFive2 Linux kernel
StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)
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