| @@ -1,1736 +1,1729 @@ | | | @@ -1,1736 +1,1729 @@ |
1 | /* $NetBSD: usbnet.c,v 1.75 2022/03/03 05:51:06 riastradh Exp $ */ | | 1 | /* $NetBSD: usbnet.c,v 1.76 2022/03/03 05:51:56 riastradh Exp $ */ |
2 | | | 2 | |
3 | /* | | 3 | /* |
4 | * Copyright (c) 2019 Matthew R. Green | | 4 | * Copyright (c) 2019 Matthew R. Green |
5 | * All rights reserved. | | 5 | * All rights reserved. |
6 | * | | 6 | * |
7 | * Redistribution and use in source and binary forms, with or without | | 7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions | | 8 | * modification, are permitted provided that the following conditions |
9 | * are met: | | 9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright | | 10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. | | 11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright | | 12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the | | 13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. | | 14 | * documentation and/or other materials provided with the distribution. |
15 | * | | 15 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | | 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | | 17 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | | 18 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | | 19 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | | 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
21 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | | 21 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | | 22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
23 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | | 23 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | | 24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | | 25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
26 | * SUCH DAMAGE. | | 26 | * SUCH DAMAGE. |
27 | */ | | 27 | */ |
28 | | | 28 | |
29 | /* | | 29 | /* |
30 | * Common code shared between USB network drivers. | | 30 | * Common code shared between USB network drivers. |
31 | */ | | 31 | */ |
32 | | | 32 | |
33 | #include <sys/cdefs.h> | | 33 | #include <sys/cdefs.h> |
34 | __KERNEL_RCSID(0, "$NetBSD: usbnet.c,v 1.75 2022/03/03 05:51:06 riastradh Exp $"); | | 34 | __KERNEL_RCSID(0, "$NetBSD: usbnet.c,v 1.76 2022/03/03 05:51:56 riastradh Exp $"); |
35 | | | 35 | |
36 | #include <sys/param.h> | | 36 | #include <sys/param.h> |
37 | #include <sys/kernel.h> | | 37 | #include <sys/kernel.h> |
38 | #include <sys/kmem.h> | | 38 | #include <sys/kmem.h> |
39 | #include <sys/module.h> | | 39 | #include <sys/module.h> |
40 | #include <sys/atomic.h> | | 40 | #include <sys/atomic.h> |
41 | | | 41 | |
42 | #include <dev/usb/usbnet.h> | | 42 | #include <dev/usb/usbnet.h> |
43 | #include <dev/usb/usbhist.h> | | 43 | #include <dev/usb/usbhist.h> |
44 | | | 44 | |
45 | struct usbnet_cdata { | | 45 | struct usbnet_cdata { |
46 | struct usbnet_chain *uncd_tx_chain; | | 46 | struct usbnet_chain *uncd_tx_chain; |
47 | struct usbnet_chain *uncd_rx_chain; | | 47 | struct usbnet_chain *uncd_rx_chain; |
48 | | | 48 | |
49 | int uncd_tx_prod; | | 49 | int uncd_tx_prod; |
50 | int uncd_tx_cnt; | | 50 | int uncd_tx_cnt; |
51 | }; | | 51 | }; |
52 | | | 52 | |
53 | struct usbnet_private { | | 53 | struct usbnet_private { |
54 | /* | | 54 | /* |
55 | * - unp_core_lock protects most of this structure, the public one, | | 55 | * - unp_core_lock protects most of this structure, the public one, |
56 | * and the MII / media data. | | 56 | * and the MII / media data. |
57 | * - unp_rxlock protects the rx path and its data | | 57 | * - unp_rxlock protects the rx path and its data |
58 | * - unp_txlock protects the tx path and its data | | 58 | * - unp_txlock protects the tx path and its data |
59 | * - unp_detachcv handles detach vs open references | | 59 | * - unp_detachcv handles detach vs open references |
60 | * | | 60 | * |
61 | * the lock ordering is: | | 61 | * the lock ordering is: |
62 | * ifnet lock -> unp_core_lock -> unp_rxlock -> unp_txlock | | 62 | * ifnet lock -> unp_core_lock -> unp_rxlock -> unp_txlock |
63 | * - ifnet lock is not needed for unp_core_lock, but if ifnet lock is | | 63 | * - ifnet lock is not needed for unp_core_lock, but if ifnet lock is |
64 | * involved, it must be taken first | | 64 | * involved, it must be taken first |
65 | */ | | 65 | */ |
66 | kmutex_t unp_core_lock; | | 66 | kmutex_t unp_core_lock; |
67 | kmutex_t unp_rxlock; | | 67 | kmutex_t unp_rxlock; |
68 | kmutex_t unp_txlock; | | 68 | kmutex_t unp_txlock; |
69 | kcondvar_t unp_detachcv; | | 69 | kcondvar_t unp_detachcv; |
70 | | | 70 | |
71 | struct usbnet_cdata unp_cdata; | | 71 | struct usbnet_cdata unp_cdata; |
72 | | | 72 | |
73 | struct ethercom unp_ec; | | 73 | struct ethercom unp_ec; |
74 | struct mii_data unp_mii; | | 74 | struct mii_data unp_mii; |
75 | struct usb_task unp_mcasttask; | | 75 | struct usb_task unp_mcasttask; |
76 | struct usb_task unp_ticktask; | | 76 | struct usb_task unp_ticktask; |
77 | struct callout unp_stat_ch; | | 77 | struct callout unp_stat_ch; |
78 | struct usbd_pipe *unp_ep[USBNET_ENDPT_MAX]; | | 78 | struct usbd_pipe *unp_ep[USBNET_ENDPT_MAX]; |
79 | | | 79 | |
80 | volatile bool unp_dying; | | 80 | volatile bool unp_dying; |
81 | bool unp_stopping; | | 81 | bool unp_stopping; |
82 | bool unp_attached; | | 82 | bool unp_attached; |
83 | bool unp_ifp_attached; | | 83 | bool unp_ifp_attached; |
84 | bool unp_link; | | 84 | bool unp_link; |
85 | | | 85 | |
86 | int unp_refcnt; | | 86 | int unp_refcnt; |
87 | int unp_timer; | | 87 | int unp_timer; |
88 | unsigned short unp_if_flags; | | 88 | unsigned short unp_if_flags; |
89 | unsigned unp_number; | | 89 | unsigned unp_number; |
90 | | | 90 | |
91 | krndsource_t unp_rndsrc; | | 91 | krndsource_t unp_rndsrc; |
92 | | | 92 | |
93 | struct timeval unp_rx_notice; | | 93 | struct timeval unp_rx_notice; |
94 | struct timeval unp_tx_notice; | | 94 | struct timeval unp_tx_notice; |
95 | struct timeval unp_intr_notice; | | 95 | struct timeval unp_intr_notice; |
96 | }; | | 96 | }; |
97 | | | 97 | |
98 | #define un_cdata(un) (&(un)->un_pri->unp_cdata) | | 98 | #define un_cdata(un) (&(un)->un_pri->unp_cdata) |
99 | | | 99 | |
100 | volatile unsigned usbnet_number; | | 100 | volatile unsigned usbnet_number; |
101 | | | 101 | |
102 | static int usbnet_modcmd(modcmd_t, void *); | | 102 | static int usbnet_modcmd(modcmd_t, void *); |
103 | | | 103 | |
104 | #ifdef USB_DEBUG | | 104 | #ifdef USB_DEBUG |
105 | #ifndef USBNET_DEBUG | | 105 | #ifndef USBNET_DEBUG |
106 | #define usbnetdebug 0 | | 106 | #define usbnetdebug 0 |
107 | #else | | 107 | #else |
108 | static int usbnetdebug = 0; | | 108 | static int usbnetdebug = 0; |
109 | | | 109 | |
110 | SYSCTL_SETUP(sysctl_hw_usbnet_setup, "sysctl hw.usbnet setup") | | 110 | SYSCTL_SETUP(sysctl_hw_usbnet_setup, "sysctl hw.usbnet setup") |
111 | { | | 111 | { |
112 | int err; | | 112 | int err; |
113 | const struct sysctlnode *rnode; | | 113 | const struct sysctlnode *rnode; |
114 | const struct sysctlnode *cnode; | | 114 | const struct sysctlnode *cnode; |
115 | | | 115 | |
116 | err = sysctl_createv(clog, 0, NULL, &rnode, | | 116 | err = sysctl_createv(clog, 0, NULL, &rnode, |
117 | CTLFLAG_PERMANENT, CTLTYPE_NODE, "usbnet", | | 117 | CTLFLAG_PERMANENT, CTLTYPE_NODE, "usbnet", |
118 | SYSCTL_DESCR("usbnet global controls"), | | 118 | SYSCTL_DESCR("usbnet global controls"), |
119 | NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); | | 119 | NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); |
120 | | | 120 | |
121 | if (err) | | 121 | if (err) |
122 | goto fail; | | 122 | goto fail; |
123 | | | 123 | |
124 | /* control debugging printfs */ | | 124 | /* control debugging printfs */ |
125 | err = sysctl_createv(clog, 0, &rnode, &cnode, | | 125 | err = sysctl_createv(clog, 0, &rnode, &cnode, |
126 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, | | 126 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, |
127 | "debug", SYSCTL_DESCR("Enable debugging output"), | | 127 | "debug", SYSCTL_DESCR("Enable debugging output"), |
128 | NULL, 0, &usbnetdebug, sizeof(usbnetdebug), CTL_CREATE, CTL_EOL); | | 128 | NULL, 0, &usbnetdebug, sizeof(usbnetdebug), CTL_CREATE, CTL_EOL); |
129 | if (err) | | 129 | if (err) |
130 | goto fail; | | 130 | goto fail; |
131 | | | 131 | |
132 | return; | | 132 | return; |
133 | fail: | | 133 | fail: |
134 | aprint_error("%s: sysctl_createv failed (err = %d)\n", __func__, err); | | 134 | aprint_error("%s: sysctl_createv failed (err = %d)\n", __func__, err); |
135 | } | | 135 | } |
136 | | | 136 | |
137 | #endif /* USBNET_DEBUG */ | | 137 | #endif /* USBNET_DEBUG */ |
138 | #endif /* USB_DEBUG */ | | 138 | #endif /* USB_DEBUG */ |
139 | | | 139 | |
140 | #define DPRINTF(FMT,A,B,C,D) USBHIST_LOGN(usbnetdebug,1,FMT,A,B,C,D) | | 140 | #define DPRINTF(FMT,A,B,C,D) USBHIST_LOGN(usbnetdebug,1,FMT,A,B,C,D) |
141 | #define DPRINTFN(N,FMT,A,B,C,D) USBHIST_LOGN(usbnetdebug,N,FMT,A,B,C,D) | | 141 | #define DPRINTFN(N,FMT,A,B,C,D) USBHIST_LOGN(usbnetdebug,N,FMT,A,B,C,D) |
142 | #define USBNETHIST_FUNC() USBHIST_FUNC() | | 142 | #define USBNETHIST_FUNC() USBHIST_FUNC() |
143 | #define USBNETHIST_CALLED(name) USBHIST_CALLED(usbnetdebug) | | 143 | #define USBNETHIST_CALLED(name) USBHIST_CALLED(usbnetdebug) |
144 | #define USBNETHIST_CALLARGS(FMT,A,B,C,D) \ | | 144 | #define USBNETHIST_CALLARGS(FMT,A,B,C,D) \ |
145 | USBHIST_CALLARGS(usbnetdebug,FMT,A,B,C,D) | | 145 | USBHIST_CALLARGS(usbnetdebug,FMT,A,B,C,D) |
146 | #define USBNETHIST_CALLARGSN(N,FMT,A,B,C,D) \ | | 146 | #define USBNETHIST_CALLARGSN(N,FMT,A,B,C,D) \ |
147 | USBHIST_CALLARGSN(usbnetdebug,N,FMT,A,B,C,D) | | 147 | USBHIST_CALLARGSN(usbnetdebug,N,FMT,A,B,C,D) |
148 | | | 148 | |
149 | /* Callback vectors. */ | | 149 | /* Callback vectors. */ |
150 | | | 150 | |
151 | static void | | 151 | static void |
152 | uno_stop(struct usbnet *un, struct ifnet *ifp, int disable) | | 152 | uno_stop(struct usbnet *un, struct ifnet *ifp, int disable) |
153 | { | | 153 | { |
154 | KASSERTMSG(!un->un_pri->unp_ifp_attached || IFNET_LOCKED(ifp), | | 154 | KASSERTMSG(!un->un_pri->unp_ifp_attached || IFNET_LOCKED(ifp), |
155 | "%s", ifp->if_xname); | | 155 | "%s", ifp->if_xname); |
156 | usbnet_isowned_core(un); | | 156 | usbnet_isowned_core(un); |
157 | if (un->un_ops->uno_stop) | | 157 | if (un->un_ops->uno_stop) |
158 | (*un->un_ops->uno_stop)(ifp, disable); | | 158 | (*un->un_ops->uno_stop)(ifp, disable); |
159 | } | | 159 | } |
160 | | | 160 | |
161 | static int | | 161 | static int |
162 | uno_ioctl(struct usbnet *un, struct ifnet *ifp, u_long cmd, void *data) | | 162 | uno_ioctl(struct usbnet *un, struct ifnet *ifp, u_long cmd, void *data) |
163 | { | | 163 | { |
164 | | | 164 | |
165 | KASSERTMSG(cmd != SIOCADDMULTI, "%s", ifp->if_xname); | | 165 | KASSERTMSG(cmd != SIOCADDMULTI, "%s", ifp->if_xname); |
166 | KASSERTMSG(cmd != SIOCDELMULTI, "%s", ifp->if_xname); | | 166 | KASSERTMSG(cmd != SIOCDELMULTI, "%s", ifp->if_xname); |
167 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); | | 167 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); |
168 | | | 168 | |
169 | if (un->un_ops->uno_ioctl) | | 169 | if (un->un_ops->uno_ioctl) |
170 | return (*un->un_ops->uno_ioctl)(ifp, cmd, data); | | 170 | return (*un->un_ops->uno_ioctl)(ifp, cmd, data); |
171 | return 0; | | 171 | return 0; |
172 | } | | 172 | } |
173 | | | 173 | |
174 | static int | | 174 | static int |
175 | uno_override_ioctl(struct usbnet *un, struct ifnet *ifp, u_long cmd, void *data) | | 175 | uno_override_ioctl(struct usbnet *un, struct ifnet *ifp, u_long cmd, void *data) |
176 | { | | 176 | { |
177 | | | 177 | |
178 | switch (cmd) { | | 178 | switch (cmd) { |
179 | case SIOCADDMULTI: | | 179 | case SIOCADDMULTI: |
180 | case SIOCDELMULTI: | | 180 | case SIOCDELMULTI: |
181 | break; | | 181 | break; |
182 | default: | | 182 | default: |
183 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); | | 183 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); |
184 | } | | 184 | } |
185 | | | 185 | |
186 | return (*un->un_ops->uno_override_ioctl)(ifp, cmd, data); | | 186 | return (*un->un_ops->uno_override_ioctl)(ifp, cmd, data); |
187 | } | | 187 | } |
188 | | | 188 | |
189 | static int | | 189 | static int |
190 | uno_init(struct usbnet *un, struct ifnet *ifp) | | 190 | uno_init(struct usbnet *un, struct ifnet *ifp) |
191 | { | | 191 | { |
192 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); | | 192 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); |
193 | return (*un->un_ops->uno_init)(ifp); | | 193 | return (*un->un_ops->uno_init)(ifp); |
194 | } | | 194 | } |
195 | | | 195 | |
196 | static int | | 196 | static int |
197 | uno_read_reg(struct usbnet *un, int phy, int reg, uint16_t *val) | | 197 | uno_read_reg(struct usbnet *un, int phy, int reg, uint16_t *val) |
198 | { | | 198 | { |
199 | usbnet_isowned_core(un); | | 199 | usbnet_isowned_core(un); |
200 | return (*un->un_ops->uno_read_reg)(un, phy, reg, val); | | 200 | return (*un->un_ops->uno_read_reg)(un, phy, reg, val); |
201 | } | | 201 | } |
202 | | | 202 | |
203 | static int | | 203 | static int |
204 | uno_write_reg(struct usbnet *un, int phy, int reg, uint16_t val) | | 204 | uno_write_reg(struct usbnet *un, int phy, int reg, uint16_t val) |
205 | { | | 205 | { |
206 | usbnet_isowned_core(un); | | 206 | usbnet_isowned_core(un); |
207 | return (*un->un_ops->uno_write_reg)(un, phy, reg, val); | | 207 | return (*un->un_ops->uno_write_reg)(un, phy, reg, val); |
208 | } | | 208 | } |
209 | | | 209 | |
210 | static void | | 210 | static void |
211 | uno_mii_statchg(struct usbnet *un, struct ifnet *ifp) | | 211 | uno_mii_statchg(struct usbnet *un, struct ifnet *ifp) |
212 | { | | 212 | { |
213 | usbnet_isowned_core(un); | | 213 | usbnet_isowned_core(un); |
214 | (*un->un_ops->uno_statchg)(ifp); | | 214 | (*un->un_ops->uno_statchg)(ifp); |
215 | } | | 215 | } |
216 | | | 216 | |
217 | static unsigned | | 217 | static unsigned |
218 | uno_tx_prepare(struct usbnet *un, struct mbuf *m, struct usbnet_chain *c) | | 218 | uno_tx_prepare(struct usbnet *un, struct mbuf *m, struct usbnet_chain *c) |
219 | { | | 219 | { |
220 | usbnet_isowned_tx(un); | | 220 | usbnet_isowned_tx(un); |
221 | return (*un->un_ops->uno_tx_prepare)(un, m, c); | | 221 | return (*un->un_ops->uno_tx_prepare)(un, m, c); |
222 | } | | 222 | } |
223 | | | 223 | |
224 | static void | | 224 | static void |
225 | uno_rx_loop(struct usbnet *un, struct usbnet_chain *c, uint32_t total_len) | | 225 | uno_rx_loop(struct usbnet *un, struct usbnet_chain *c, uint32_t total_len) |
226 | { | | 226 | { |
227 | usbnet_isowned_rx(un); | | 227 | usbnet_isowned_rx(un); |
228 | (*un->un_ops->uno_rx_loop)(un, c, total_len); | | 228 | (*un->un_ops->uno_rx_loop)(un, c, total_len); |
229 | } | | 229 | } |
230 | | | 230 | |
231 | static void | | 231 | static void |
232 | uno_tick(struct usbnet *un) | | 232 | uno_tick(struct usbnet *un) |
233 | { | | 233 | { |
234 | if (un->un_ops->uno_tick) | | 234 | if (un->un_ops->uno_tick) |
235 | (*un->un_ops->uno_tick)(un); | | 235 | (*un->un_ops->uno_tick)(un); |
236 | } | | 236 | } |
237 | | | 237 | |
238 | static void | | 238 | static void |
239 | uno_intr(struct usbnet *un, usbd_status status) | | 239 | uno_intr(struct usbnet *un, usbd_status status) |
240 | { | | 240 | { |
241 | if (un->un_ops->uno_intr) | | 241 | if (un->un_ops->uno_intr) |
242 | (*un->un_ops->uno_intr)(un, status); | | 242 | (*un->un_ops->uno_intr)(un, status); |
243 | } | | 243 | } |
244 | | | 244 | |
245 | /* Interrupt handling. */ | | 245 | /* Interrupt handling. */ |
246 | | | 246 | |
247 | static struct mbuf * | | 247 | static struct mbuf * |
248 | usbnet_newbuf(size_t buflen) | | 248 | usbnet_newbuf(size_t buflen) |
249 | { | | 249 | { |
250 | struct mbuf *m; | | 250 | struct mbuf *m; |
251 | | | 251 | |
252 | if (buflen > MCLBYTES) | | 252 | if (buflen > MCLBYTES) |
253 | return NULL; | | 253 | return NULL; |
254 | | | 254 | |
255 | MGETHDR(m, M_DONTWAIT, MT_DATA); | | 255 | MGETHDR(m, M_DONTWAIT, MT_DATA); |
256 | if (m == NULL) | | 256 | if (m == NULL) |
257 | return NULL; | | 257 | return NULL; |
258 | | | 258 | |
259 | if (buflen > MHLEN - ETHER_ALIGN) { | | 259 | if (buflen > MHLEN - ETHER_ALIGN) { |
260 | MCLGET(m, M_DONTWAIT); | | 260 | MCLGET(m, M_DONTWAIT); |
261 | if (!(m->m_flags & M_EXT)) { | | 261 | if (!(m->m_flags & M_EXT)) { |
262 | m_freem(m); | | 262 | m_freem(m); |
263 | return NULL; | | 263 | return NULL; |
264 | } | | 264 | } |
265 | } | | 265 | } |
266 | | | 266 | |
267 | m_adj(m, ETHER_ALIGN); | | 267 | m_adj(m, ETHER_ALIGN); |
268 | m->m_len = m->m_pkthdr.len = buflen; | | 268 | m->m_len = m->m_pkthdr.len = buflen; |
269 | | | 269 | |
270 | return m; | | 270 | return m; |
271 | } | | 271 | } |
272 | | | 272 | |
273 | /* | | 273 | /* |
274 | * usbnet_rxeof() is designed to be the done callback for rx completion. | | 274 | * usbnet_rxeof() is designed to be the done callback for rx completion. |
275 | * it provides generic setup and finalisation, calls a different usbnet | | 275 | * it provides generic setup and finalisation, calls a different usbnet |
276 | * rx_loop callback in the middle, which can use usbnet_enqueue() to | | 276 | * rx_loop callback in the middle, which can use usbnet_enqueue() to |
277 | * enqueue a packet for higher levels (or usbnet_input() if previously | | 277 | * enqueue a packet for higher levels (or usbnet_input() if previously |
278 | * using if_input() path.) | | 278 | * using if_input() path.) |
279 | */ | | 279 | */ |
280 | void | | 280 | void |
281 | usbnet_enqueue(struct usbnet * const un, uint8_t *buf, size_t buflen, | | 281 | usbnet_enqueue(struct usbnet * const un, uint8_t *buf, size_t buflen, |
282 | int csum_flags, uint32_t csum_data, int mbuf_flags) | | 282 | int csum_flags, uint32_t csum_data, int mbuf_flags) |
283 | { | | 283 | { |
284 | USBNETHIST_FUNC(); | | 284 | USBNETHIST_FUNC(); |
285 | struct ifnet * const ifp = usbnet_ifp(un); | | 285 | struct ifnet * const ifp = usbnet_ifp(un); |
286 | struct usbnet_private * const unp __unused = un->un_pri; | | 286 | struct usbnet_private * const unp __unused = un->un_pri; |
287 | struct mbuf *m; | | 287 | struct mbuf *m; |
288 | | | 288 | |
289 | USBNETHIST_CALLARGSN(5, "%jd: enter: len=%ju csf %#jx mbf %#jx", | | 289 | USBNETHIST_CALLARGSN(5, "%jd: enter: len=%ju csf %#jx mbf %#jx", |
290 | unp->unp_number, buflen, csum_flags, mbuf_flags); | | 290 | unp->unp_number, buflen, csum_flags, mbuf_flags); |
291 | | | 291 | |
292 | usbnet_isowned_rx(un); | | 292 | usbnet_isowned_rx(un); |
293 | | | 293 | |
294 | m = usbnet_newbuf(buflen); | | 294 | m = usbnet_newbuf(buflen); |
295 | if (m == NULL) { | | 295 | if (m == NULL) { |
296 | DPRINTF("%jd: no memory", unp->unp_number, 0, 0, 0); | | 296 | DPRINTF("%jd: no memory", unp->unp_number, 0, 0, 0); |
297 | if_statinc(ifp, if_ierrors); | | 297 | if_statinc(ifp, if_ierrors); |
298 | return; | | 298 | return; |
299 | } | | 299 | } |
300 | | | 300 | |
301 | m_set_rcvif(m, ifp); | | 301 | m_set_rcvif(m, ifp); |
302 | m->m_pkthdr.csum_flags = csum_flags; | | 302 | m->m_pkthdr.csum_flags = csum_flags; |
303 | m->m_pkthdr.csum_data = csum_data; | | 303 | m->m_pkthdr.csum_data = csum_data; |
304 | m->m_flags |= mbuf_flags; | | 304 | m->m_flags |= mbuf_flags; |
305 | memcpy(mtod(m, uint8_t *), buf, buflen); | | 305 | memcpy(mtod(m, uint8_t *), buf, buflen); |
306 | | | 306 | |
307 | /* push the packet up */ | | 307 | /* push the packet up */ |
308 | if_percpuq_enqueue(ifp->if_percpuq, m); | | 308 | if_percpuq_enqueue(ifp->if_percpuq, m); |
309 | } | | 309 | } |
310 | | | 310 | |
311 | void | | 311 | void |
312 | usbnet_input(struct usbnet * const un, uint8_t *buf, size_t buflen) | | 312 | usbnet_input(struct usbnet * const un, uint8_t *buf, size_t buflen) |
313 | { | | 313 | { |
314 | USBNETHIST_FUNC(); | | 314 | USBNETHIST_FUNC(); |
315 | struct ifnet * const ifp = usbnet_ifp(un); | | 315 | struct ifnet * const ifp = usbnet_ifp(un); |
316 | struct usbnet_private * const unp __unused = un->un_pri; | | 316 | struct usbnet_private * const unp __unused = un->un_pri; |
317 | struct mbuf *m; | | 317 | struct mbuf *m; |
318 | | | 318 | |
319 | USBNETHIST_CALLARGSN(5, "%jd: enter: buf %#jx len %ju", | | 319 | USBNETHIST_CALLARGSN(5, "%jd: enter: buf %#jx len %ju", |
320 | unp->unp_number, (uintptr_t)buf, buflen, 0); | | 320 | unp->unp_number, (uintptr_t)buf, buflen, 0); |
321 | | | 321 | |
322 | usbnet_isowned_rx(un); | | 322 | usbnet_isowned_rx(un); |
323 | | | 323 | |
324 | m = usbnet_newbuf(buflen); | | 324 | m = usbnet_newbuf(buflen); |
325 | if (m == NULL) { | | 325 | if (m == NULL) { |
326 | if_statinc(ifp, if_ierrors); | | 326 | if_statinc(ifp, if_ierrors); |
327 | return; | | 327 | return; |
328 | } | | 328 | } |
329 | | | 329 | |
330 | m_set_rcvif(m, ifp); | | 330 | m_set_rcvif(m, ifp); |
331 | memcpy(mtod(m, char *), buf, buflen); | | 331 | memcpy(mtod(m, char *), buf, buflen); |
332 | | | 332 | |
333 | /* push the packet up */ | | 333 | /* push the packet up */ |
334 | if_input(ifp, m); | | 334 | if_input(ifp, m); |
335 | } | | 335 | } |
336 | | | 336 | |
337 | /* | | 337 | /* |
338 | * A frame has been uploaded: pass the resulting mbuf chain up to | | 338 | * A frame has been uploaded: pass the resulting mbuf chain up to |
339 | * the higher level protocols. | | 339 | * the higher level protocols. |
340 | */ | | 340 | */ |
341 | static void | | 341 | static void |
342 | usbnet_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) | | 342 | usbnet_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) |
343 | { | | 343 | { |
344 | USBNETHIST_FUNC(); | | 344 | USBNETHIST_FUNC(); |
345 | struct usbnet_chain * const c = priv; | | 345 | struct usbnet_chain * const c = priv; |
346 | struct usbnet * const un = c->unc_un; | | 346 | struct usbnet * const un = c->unc_un; |
347 | struct usbnet_private * const unp = un->un_pri; | | 347 | struct usbnet_private * const unp = un->un_pri; |
348 | uint32_t total_len; | | 348 | uint32_t total_len; |
349 | | | 349 | |
350 | USBNETHIST_CALLARGSN(5, "%jd: enter: status %#jx xfer %#jx", | | 350 | USBNETHIST_CALLARGSN(5, "%jd: enter: status %#jx xfer %#jx", |
351 | unp->unp_number, status, (uintptr_t)xfer, 0); | | 351 | unp->unp_number, status, (uintptr_t)xfer, 0); |
352 | | | 352 | |
353 | mutex_enter(&unp->unp_rxlock); | | 353 | mutex_enter(&unp->unp_rxlock); |
354 | | | 354 | |
355 | if (usbnet_isdying(un) || unp->unp_stopping || | | 355 | if (usbnet_isdying(un) || unp->unp_stopping || |
356 | status == USBD_INVAL || status == USBD_NOT_STARTED || | | 356 | status == USBD_INVAL || status == USBD_NOT_STARTED || |
357 | status == USBD_CANCELLED) | | 357 | status == USBD_CANCELLED) |
358 | goto out; | | 358 | goto out; |
359 | | | 359 | |
360 | if (status != USBD_NORMAL_COMPLETION) { | | 360 | if (status != USBD_NORMAL_COMPLETION) { |
361 | if (usbd_ratecheck(&unp->unp_rx_notice)) | | 361 | if (usbd_ratecheck(&unp->unp_rx_notice)) |
362 | device_printf(un->un_dev, "usb errors on rx: %s\n", | | 362 | device_printf(un->un_dev, "usb errors on rx: %s\n", |
363 | usbd_errstr(status)); | | 363 | usbd_errstr(status)); |
364 | if (status == USBD_STALLED) | | 364 | if (status == USBD_STALLED) |
365 | usbd_clear_endpoint_stall_async(unp->unp_ep[USBNET_ENDPT_RX]); | | 365 | usbd_clear_endpoint_stall_async(unp->unp_ep[USBNET_ENDPT_RX]); |
366 | goto done; | | 366 | goto done; |
367 | } | | 367 | } |
368 | | | 368 | |
369 | usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); | | 369 | usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); |
370 | | | 370 | |
371 | if (total_len > un->un_rx_bufsz) { | | 371 | if (total_len > un->un_rx_bufsz) { |
372 | aprint_error_dev(un->un_dev, | | 372 | aprint_error_dev(un->un_dev, |
373 | "rxeof: too large transfer (%u > %u)\n", | | 373 | "rxeof: too large transfer (%u > %u)\n", |
374 | total_len, un->un_rx_bufsz); | | 374 | total_len, un->un_rx_bufsz); |
375 | goto done; | | 375 | goto done; |
376 | } | | 376 | } |
377 | | | 377 | |
378 | uno_rx_loop(un, c, total_len); | | 378 | uno_rx_loop(un, c, total_len); |
379 | usbnet_isowned_rx(un); | | 379 | usbnet_isowned_rx(un); |
380 | | | 380 | |
381 | done: | | 381 | done: |
382 | if (usbnet_isdying(un) || unp->unp_stopping) | | 382 | if (usbnet_isdying(un) || unp->unp_stopping) |
383 | goto out; | | 383 | goto out; |
384 | | | 384 | |
385 | mutex_exit(&unp->unp_rxlock); | | 385 | mutex_exit(&unp->unp_rxlock); |
386 | | | 386 | |
387 | /* Setup new transfer. */ | | 387 | /* Setup new transfer. */ |
388 | usbd_setup_xfer(xfer, c, c->unc_buf, un->un_rx_bufsz, | | 388 | usbd_setup_xfer(xfer, c, c->unc_buf, un->un_rx_bufsz, |
389 | un->un_rx_xfer_flags, USBD_NO_TIMEOUT, usbnet_rxeof); | | 389 | un->un_rx_xfer_flags, USBD_NO_TIMEOUT, usbnet_rxeof); |
390 | usbd_transfer(xfer); | | 390 | usbd_transfer(xfer); |
391 | return; | | 391 | return; |
392 | | | 392 | |
393 | out: | | 393 | out: |
394 | mutex_exit(&unp->unp_rxlock); | | 394 | mutex_exit(&unp->unp_rxlock); |
395 | } | | 395 | } |
396 | | | 396 | |
397 | static void | | 397 | static void |
398 | usbnet_txeof(struct usbd_xfer *xfer, void *priv, usbd_status status) | | 398 | usbnet_txeof(struct usbd_xfer *xfer, void *priv, usbd_status status) |
399 | { | | 399 | { |
400 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 400 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
401 | struct usbnet_chain * const c = priv; | | 401 | struct usbnet_chain * const c = priv; |
402 | struct usbnet * const un = c->unc_un; | | 402 | struct usbnet * const un = c->unc_un; |
403 | struct usbnet_cdata * const cd = un_cdata(un); | | 403 | struct usbnet_cdata * const cd = un_cdata(un); |
404 | struct usbnet_private * const unp = un->un_pri; | | 404 | struct usbnet_private * const unp = un->un_pri; |
405 | struct ifnet * const ifp = usbnet_ifp(un); | | 405 | struct ifnet * const ifp = usbnet_ifp(un); |
406 | | | 406 | |
407 | USBNETHIST_CALLARGSN(5, "%jd: enter: status %#jx xfer %#jx", | | 407 | USBNETHIST_CALLARGSN(5, "%jd: enter: status %#jx xfer %#jx", |
408 | unp->unp_number, status, (uintptr_t)xfer, 0); | | 408 | unp->unp_number, status, (uintptr_t)xfer, 0); |
409 | | | 409 | |
410 | mutex_enter(&unp->unp_txlock); | | 410 | mutex_enter(&unp->unp_txlock); |
411 | if (unp->unp_stopping || usbnet_isdying(un)) { | | 411 | if (unp->unp_stopping || usbnet_isdying(un)) { |
412 | mutex_exit(&unp->unp_txlock); | | 412 | mutex_exit(&unp->unp_txlock); |
413 | return; | | 413 | return; |
414 | } | | 414 | } |
415 | | | 415 | |
416 | KASSERT(cd->uncd_tx_cnt > 0); | | 416 | KASSERT(cd->uncd_tx_cnt > 0); |
417 | cd->uncd_tx_cnt--; | | 417 | cd->uncd_tx_cnt--; |
418 | | | 418 | |
419 | unp->unp_timer = 0; | | 419 | unp->unp_timer = 0; |
420 | | | 420 | |
421 | switch (status) { | | 421 | switch (status) { |
422 | case USBD_NOT_STARTED: | | 422 | case USBD_NOT_STARTED: |
423 | case USBD_CANCELLED: | | 423 | case USBD_CANCELLED: |
424 | break; | | 424 | break; |
425 | | | 425 | |
426 | case USBD_NORMAL_COMPLETION: | | 426 | case USBD_NORMAL_COMPLETION: |
427 | if_statinc(ifp, if_opackets); | | 427 | if_statinc(ifp, if_opackets); |
428 | break; | | 428 | break; |
429 | | | 429 | |
430 | default: | | 430 | default: |
431 | | | 431 | |
432 | if_statinc(ifp, if_oerrors); | | 432 | if_statinc(ifp, if_oerrors); |
433 | if (usbd_ratecheck(&unp->unp_tx_notice)) | | 433 | if (usbd_ratecheck(&unp->unp_tx_notice)) |
434 | device_printf(un->un_dev, "usb error on tx: %s\n", | | 434 | device_printf(un->un_dev, "usb error on tx: %s\n", |
435 | usbd_errstr(status)); | | 435 | usbd_errstr(status)); |
436 | if (status == USBD_STALLED) | | 436 | if (status == USBD_STALLED) |
437 | usbd_clear_endpoint_stall_async(unp->unp_ep[USBNET_ENDPT_TX]); | | 437 | usbd_clear_endpoint_stall_async(unp->unp_ep[USBNET_ENDPT_TX]); |
438 | break; | | 438 | break; |
439 | } | | 439 | } |
440 | | | 440 | |
441 | mutex_exit(&unp->unp_txlock); | | 441 | mutex_exit(&unp->unp_txlock); |
442 | | | 442 | |
443 | if (status == USBD_NORMAL_COMPLETION && !IFQ_IS_EMPTY(&ifp->if_snd)) | | 443 | if (status == USBD_NORMAL_COMPLETION && !IFQ_IS_EMPTY(&ifp->if_snd)) |
444 | (*ifp->if_start)(ifp); | | 444 | (*ifp->if_start)(ifp); |
445 | } | | 445 | } |
446 | | | 446 | |
447 | static void | | 447 | static void |
448 | usbnet_pipe_intr(struct usbd_xfer *xfer, void *priv, usbd_status status) | | 448 | usbnet_pipe_intr(struct usbd_xfer *xfer, void *priv, usbd_status status) |
449 | { | | 449 | { |
450 | USBNETHIST_FUNC(); | | 450 | USBNETHIST_FUNC(); |
451 | struct usbnet * const un = priv; | | 451 | struct usbnet * const un = priv; |
452 | struct usbnet_private * const unp = un->un_pri; | | 452 | struct usbnet_private * const unp = un->un_pri; |
453 | struct usbnet_intr * const uni = un->un_intr; | | 453 | struct usbnet_intr * const uni = un->un_intr; |
454 | | | 454 | |
455 | if (uni == NULL || usbnet_isdying(un) || unp->unp_stopping || | | 455 | if (uni == NULL || usbnet_isdying(un) || unp->unp_stopping || |
456 | status == USBD_INVAL || status == USBD_NOT_STARTED || | | 456 | status == USBD_INVAL || status == USBD_NOT_STARTED || |
457 | status == USBD_CANCELLED) { | | 457 | status == USBD_CANCELLED) { |
458 | USBNETHIST_CALLARGS("%jd: uni %#jx d/s %#jx status %#jx", | | 458 | USBNETHIST_CALLARGS("%jd: uni %#jx d/s %#jx status %#jx", |
459 | unp->unp_number, (uintptr_t)uni, | | 459 | unp->unp_number, (uintptr_t)uni, |
460 | (usbnet_isdying(un) << 8) | unp->unp_stopping, status); | | 460 | (usbnet_isdying(un) << 8) | unp->unp_stopping, status); |
461 | return; | | 461 | return; |
462 | } | | 462 | } |
463 | | | 463 | |
464 | if (status != USBD_NORMAL_COMPLETION) { | | 464 | if (status != USBD_NORMAL_COMPLETION) { |
465 | if (usbd_ratecheck(&unp->unp_intr_notice)) { | | 465 | if (usbd_ratecheck(&unp->unp_intr_notice)) { |
466 | aprint_error_dev(un->un_dev, "usb error on intr: %s\n", | | 466 | aprint_error_dev(un->un_dev, "usb error on intr: %s\n", |
467 | usbd_errstr(status)); | | 467 | usbd_errstr(status)); |
468 | } | | 468 | } |
469 | if (status == USBD_STALLED) | | 469 | if (status == USBD_STALLED) |
470 | usbd_clear_endpoint_stall_async(unp->unp_ep[USBNET_ENDPT_INTR]); | | 470 | usbd_clear_endpoint_stall_async(unp->unp_ep[USBNET_ENDPT_INTR]); |
471 | USBNETHIST_CALLARGS("%jd: not normal status %#jx", | | 471 | USBNETHIST_CALLARGS("%jd: not normal status %#jx", |
472 | unp->unp_number, status, 0, 0); | | 472 | unp->unp_number, status, 0, 0); |
473 | return; | | 473 | return; |
474 | } | | 474 | } |
475 | | | 475 | |
476 | uno_intr(un, status); | | 476 | uno_intr(un, status); |
477 | } | | 477 | } |
478 | | | 478 | |
479 | static void | | 479 | static void |
480 | usbnet_start_locked(struct ifnet *ifp) | | 480 | usbnet_start_locked(struct ifnet *ifp) |
481 | { | | 481 | { |
482 | USBNETHIST_FUNC(); | | 482 | USBNETHIST_FUNC(); |
483 | struct usbnet * const un = ifp->if_softc; | | 483 | struct usbnet * const un = ifp->if_softc; |
484 | struct usbnet_cdata * const cd = un_cdata(un); | | 484 | struct usbnet_cdata * const cd = un_cdata(un); |
485 | struct usbnet_private * const unp = un->un_pri; | | 485 | struct usbnet_private * const unp = un->un_pri; |
486 | struct mbuf *m; | | 486 | struct mbuf *m; |
487 | unsigned length; | | 487 | unsigned length; |
488 | bool done_transmit = false; | | 488 | bool done_transmit = false; |
489 | int idx, count; | | 489 | int idx, count; |
490 | | | 490 | |
491 | USBNETHIST_CALLARGS("%jd: tx_cnt %jd list_cnt %jd link %jd", | | 491 | USBNETHIST_CALLARGS("%jd: tx_cnt %jd list_cnt %jd link %jd", |
492 | unp->unp_number, cd->uncd_tx_cnt, un->un_tx_list_cnt, | | 492 | unp->unp_number, cd->uncd_tx_cnt, un->un_tx_list_cnt, |
493 | unp->unp_link); | | 493 | unp->unp_link); |
494 | | | 494 | |
495 | usbnet_isowned_tx(un); | | 495 | usbnet_isowned_tx(un); |
496 | KASSERT(cd->uncd_tx_cnt <= un->un_tx_list_cnt); | | 496 | KASSERT(cd->uncd_tx_cnt <= un->un_tx_list_cnt); |
497 | | | 497 | |
498 | if (!unp->unp_link || (ifp->if_flags & IFF_RUNNING) == 0) { | | 498 | if (!unp->unp_link || (ifp->if_flags & IFF_RUNNING) == 0) { |
499 | DPRINTF("start called no link (%jx) or running (flags %jx)", | | 499 | DPRINTF("start called no link (%jx) or running (flags %jx)", |
500 | unp->unp_link, ifp->if_flags, 0, 0); | | 500 | unp->unp_link, ifp->if_flags, 0, 0); |
501 | return; | | 501 | return; |
502 | } | | 502 | } |
503 | | | 503 | |
504 | if (cd->uncd_tx_cnt == un->un_tx_list_cnt) { | | 504 | if (cd->uncd_tx_cnt == un->un_tx_list_cnt) { |
505 | DPRINTF("start called, tx busy (%#jx == %#jx)", | | 505 | DPRINTF("start called, tx busy (%#jx == %#jx)", |
506 | cd->uncd_tx_cnt, un->un_tx_list_cnt, 0, 0); | | 506 | cd->uncd_tx_cnt, un->un_tx_list_cnt, 0, 0); |
507 | return; | | 507 | return; |
508 | } | | 508 | } |
509 | | | 509 | |
510 | idx = cd->uncd_tx_prod; | | 510 | idx = cd->uncd_tx_prod; |
511 | count = 0; | | 511 | count = 0; |
512 | while (cd->uncd_tx_cnt < un->un_tx_list_cnt) { | | 512 | while (cd->uncd_tx_cnt < un->un_tx_list_cnt) { |
513 | IFQ_POLL(&ifp->if_snd, m); | | 513 | IFQ_POLL(&ifp->if_snd, m); |
514 | if (m == NULL) { | | 514 | if (m == NULL) { |
515 | DPRINTF("start called, queue empty", 0, 0, 0, 0); | | 515 | DPRINTF("start called, queue empty", 0, 0, 0, 0); |
516 | break; | | 516 | break; |
517 | } | | 517 | } |
518 | KASSERT(m->m_pkthdr.len <= un->un_tx_bufsz); | | 518 | KASSERT(m->m_pkthdr.len <= un->un_tx_bufsz); |
519 | | | 519 | |
520 | struct usbnet_chain *c = &cd->uncd_tx_chain[idx]; | | 520 | struct usbnet_chain *c = &cd->uncd_tx_chain[idx]; |
521 | | | 521 | |
522 | length = uno_tx_prepare(un, m, c); | | 522 | length = uno_tx_prepare(un, m, c); |
523 | if (length == 0) { | | 523 | if (length == 0) { |
524 | DPRINTF("uno_tx_prepare gave zero length", 0, 0, 0, 0); | | 524 | DPRINTF("uno_tx_prepare gave zero length", 0, 0, 0, 0); |
525 | if_statinc(ifp, if_oerrors); | | 525 | if_statinc(ifp, if_oerrors); |
526 | break; | | 526 | break; |
527 | } | | 527 | } |
528 | | | 528 | |
529 | if (__predict_false(c->unc_xfer == NULL)) { | | 529 | if (__predict_false(c->unc_xfer == NULL)) { |
530 | DPRINTF("unc_xfer is NULL", 0, 0, 0, 0); | | 530 | DPRINTF("unc_xfer is NULL", 0, 0, 0, 0); |
531 | if_statinc(ifp, if_oerrors); | | 531 | if_statinc(ifp, if_oerrors); |
532 | break; | | 532 | break; |
533 | } | | 533 | } |
534 | | | 534 | |
535 | usbd_setup_xfer(c->unc_xfer, c, c->unc_buf, length, | | 535 | usbd_setup_xfer(c->unc_xfer, c, c->unc_buf, length, |
536 | un->un_tx_xfer_flags, 10000, usbnet_txeof); | | 536 | un->un_tx_xfer_flags, 10000, usbnet_txeof); |
537 | | | 537 | |
538 | /* Transmit */ | | 538 | /* Transmit */ |
539 | usbd_status err = usbd_transfer(c->unc_xfer); | | 539 | usbd_status err = usbd_transfer(c->unc_xfer); |
540 | if (err != USBD_IN_PROGRESS) { | | 540 | if (err != USBD_IN_PROGRESS) { |
541 | DPRINTF("usbd_transfer on %#jx for %ju bytes: %jd", | | 541 | DPRINTF("usbd_transfer on %#jx for %ju bytes: %jd", |
542 | (uintptr_t)c->unc_buf, length, err, 0); | | 542 | (uintptr_t)c->unc_buf, length, err, 0); |
543 | if_statinc(ifp, if_oerrors); | | 543 | if_statinc(ifp, if_oerrors); |
544 | break; | | 544 | break; |
545 | } | | 545 | } |
546 | done_transmit = true; | | 546 | done_transmit = true; |
547 | | | 547 | |
548 | IFQ_DEQUEUE(&ifp->if_snd, m); | | 548 | IFQ_DEQUEUE(&ifp->if_snd, m); |
549 | | | 549 | |
550 | /* | | 550 | /* |
551 | * If there's a BPF listener, bounce a copy of this frame | | 551 | * If there's a BPF listener, bounce a copy of this frame |
552 | * to him. | | 552 | * to him. |
553 | */ | | 553 | */ |
554 | bpf_mtap(ifp, m, BPF_D_OUT); | | 554 | bpf_mtap(ifp, m, BPF_D_OUT); |
555 | m_freem(m); | | 555 | m_freem(m); |
556 | | | 556 | |
557 | idx = (idx + 1) % un->un_tx_list_cnt; | | 557 | idx = (idx + 1) % un->un_tx_list_cnt; |
558 | cd->uncd_tx_cnt++; | | 558 | cd->uncd_tx_cnt++; |
559 | count++; | | 559 | count++; |
560 | } | | 560 | } |
561 | cd->uncd_tx_prod = idx; | | 561 | cd->uncd_tx_prod = idx; |
562 | | | 562 | |
563 | DPRINTF("finished with start; tx_cnt %jd list_cnt %jd link %jd", | | 563 | DPRINTF("finished with start; tx_cnt %jd list_cnt %jd link %jd", |
564 | cd->uncd_tx_cnt, un->un_tx_list_cnt, unp->unp_link, 0); | | 564 | cd->uncd_tx_cnt, un->un_tx_list_cnt, unp->unp_link, 0); |
565 | | | 565 | |
566 | /* | | 566 | /* |
567 | * Set a timeout in case the chip goes out to lunch. | | 567 | * Set a timeout in case the chip goes out to lunch. |
568 | */ | | 568 | */ |
569 | if (done_transmit) | | 569 | if (done_transmit) |
570 | unp->unp_timer = 5; | | 570 | unp->unp_timer = 5; |
571 | | | 571 | |
572 | if (count != 0) | | 572 | if (count != 0) |
573 | rnd_add_uint32(&unp->unp_rndsrc, count); | | 573 | rnd_add_uint32(&unp->unp_rndsrc, count); |
574 | } | | 574 | } |
575 | | | 575 | |
576 | static void | | 576 | static void |
577 | usbnet_if_start(struct ifnet *ifp) | | 577 | usbnet_if_start(struct ifnet *ifp) |
578 | { | | 578 | { |
579 | struct usbnet * const un = ifp->if_softc; | | 579 | struct usbnet * const un = ifp->if_softc; |
580 | struct usbnet_private * const unp = un->un_pri; | | 580 | struct usbnet_private * const unp = un->un_pri; |
581 | | | 581 | |
582 | USBNETHIST_FUNC(); | | 582 | USBNETHIST_FUNC(); |
583 | USBNETHIST_CALLARGS("%jd: stopping %jd", | | 583 | USBNETHIST_CALLARGS("%jd: stopping %jd", |
584 | unp->unp_number, unp->unp_stopping, 0, 0); | | 584 | unp->unp_number, unp->unp_stopping, 0, 0); |
585 | | | 585 | |
586 | mutex_enter(&unp->unp_txlock); | | 586 | mutex_enter(&unp->unp_txlock); |
587 | if (!unp->unp_stopping) | | 587 | if (!unp->unp_stopping) |
588 | usbnet_start_locked(ifp); | | 588 | usbnet_start_locked(ifp); |
589 | mutex_exit(&unp->unp_txlock); | | 589 | mutex_exit(&unp->unp_txlock); |
590 | } | | 590 | } |
591 | | | 591 | |
592 | /* | | 592 | /* |
593 | * Chain management. | | 593 | * Chain management. |
594 | * | | 594 | * |
595 | * RX and TX are identical. Keep them that way. | | 595 | * RX and TX are identical. Keep them that way. |
596 | */ | | 596 | */ |
597 | | | 597 | |
598 | /* Start of common RX functions */ | | 598 | /* Start of common RX functions */ |
599 | | | 599 | |
600 | static size_t | | 600 | static size_t |
601 | usbnet_rx_list_size(struct usbnet_cdata * const cd, struct usbnet * const un) | | 601 | usbnet_rx_list_size(struct usbnet_cdata * const cd, struct usbnet * const un) |
602 | { | | 602 | { |
603 | return sizeof(*cd->uncd_rx_chain) * un->un_rx_list_cnt; | | 603 | return sizeof(*cd->uncd_rx_chain) * un->un_rx_list_cnt; |
604 | } | | 604 | } |
605 | | | 605 | |
606 | static void | | 606 | static void |
607 | usbnet_rx_list_alloc(struct usbnet * const un) | | 607 | usbnet_rx_list_alloc(struct usbnet * const un) |
608 | { | | 608 | { |
609 | struct usbnet_cdata * const cd = un_cdata(un); | | 609 | struct usbnet_cdata * const cd = un_cdata(un); |
610 | | | 610 | |
611 | cd->uncd_rx_chain = kmem_zalloc(usbnet_rx_list_size(cd, un), KM_SLEEP); | | 611 | cd->uncd_rx_chain = kmem_zalloc(usbnet_rx_list_size(cd, un), KM_SLEEP); |
612 | } | | 612 | } |
613 | | | 613 | |
614 | static void | | 614 | static void |
615 | usbnet_rx_list_free(struct usbnet * const un) | | 615 | usbnet_rx_list_free(struct usbnet * const un) |
616 | { | | 616 | { |
617 | struct usbnet_cdata * const cd = un_cdata(un); | | 617 | struct usbnet_cdata * const cd = un_cdata(un); |
618 | | | 618 | |
619 | if (cd->uncd_rx_chain) { | | 619 | if (cd->uncd_rx_chain) { |
620 | kmem_free(cd->uncd_rx_chain, usbnet_rx_list_size(cd, un)); | | 620 | kmem_free(cd->uncd_rx_chain, usbnet_rx_list_size(cd, un)); |
621 | cd->uncd_rx_chain = NULL; | | 621 | cd->uncd_rx_chain = NULL; |
622 | } | | 622 | } |
623 | } | | 623 | } |
624 | | | 624 | |
625 | static int | | 625 | static int |
626 | usbnet_rx_list_init(struct usbnet * const un) | | 626 | usbnet_rx_list_init(struct usbnet * const un) |
627 | { | | 627 | { |
628 | struct usbnet_cdata * const cd = un_cdata(un); | | 628 | struct usbnet_cdata * const cd = un_cdata(un); |
629 | struct usbnet_private * const unp = un->un_pri; | | 629 | struct usbnet_private * const unp = un->un_pri; |
630 | | | 630 | |
631 | for (size_t i = 0; i < un->un_rx_list_cnt; i++) { | | 631 | for (size_t i = 0; i < un->un_rx_list_cnt; i++) { |
632 | struct usbnet_chain *c = &cd->uncd_rx_chain[i]; | | 632 | struct usbnet_chain *c = &cd->uncd_rx_chain[i]; |
633 | | | 633 | |
634 | c->unc_un = un; | | 634 | c->unc_un = un; |
635 | if (c->unc_xfer == NULL) { | | 635 | if (c->unc_xfer == NULL) { |
636 | int err = usbd_create_xfer(unp->unp_ep[USBNET_ENDPT_RX], | | 636 | int err = usbd_create_xfer(unp->unp_ep[USBNET_ENDPT_RX], |
637 | un->un_rx_bufsz, un->un_rx_xfer_flags, 0, | | 637 | un->un_rx_bufsz, un->un_rx_xfer_flags, 0, |
638 | &c->unc_xfer); | | 638 | &c->unc_xfer); |
639 | if (err) | | 639 | if (err) |
640 | return err; | | 640 | return err; |
641 | c->unc_buf = usbd_get_buffer(c->unc_xfer); | | 641 | c->unc_buf = usbd_get_buffer(c->unc_xfer); |
642 | } | | 642 | } |
643 | } | | 643 | } |
644 | | | 644 | |
645 | return 0; | | 645 | return 0; |
646 | } | | 646 | } |
647 | | | 647 | |
648 | static void | | 648 | static void |
649 | usbnet_rx_list_fini(struct usbnet * const un) | | 649 | usbnet_rx_list_fini(struct usbnet * const un) |
650 | { | | 650 | { |
651 | struct usbnet_cdata * const cd = un_cdata(un); | | 651 | struct usbnet_cdata * const cd = un_cdata(un); |
652 | | | 652 | |
653 | for (size_t i = 0; i < un->un_rx_list_cnt; i++) { | | 653 | for (size_t i = 0; i < un->un_rx_list_cnt; i++) { |
654 | struct usbnet_chain *c = &cd->uncd_rx_chain[i]; | | 654 | struct usbnet_chain *c = &cd->uncd_rx_chain[i]; |
655 | | | 655 | |
656 | if (c->unc_xfer != NULL) { | | 656 | if (c->unc_xfer != NULL) { |
657 | usbd_destroy_xfer(c->unc_xfer); | | 657 | usbd_destroy_xfer(c->unc_xfer); |
658 | c->unc_xfer = NULL; | | 658 | c->unc_xfer = NULL; |
659 | c->unc_buf = NULL; | | 659 | c->unc_buf = NULL; |
660 | } | | 660 | } |
661 | } | | 661 | } |
662 | } | | 662 | } |
663 | | | 663 | |
664 | /* End of common RX functions */ | | 664 | /* End of common RX functions */ |
665 | | | 665 | |
666 | static void | | 666 | static void |
667 | usbnet_rx_start_pipes(struct usbnet * const un) | | 667 | usbnet_rx_start_pipes(struct usbnet * const un) |
668 | { | | 668 | { |
669 | struct usbnet_cdata * const cd = un_cdata(un); | | 669 | struct usbnet_cdata * const cd = un_cdata(un); |
670 | struct usbnet_private * const unp = un->un_pri; | | 670 | struct usbnet_private * const unp = un->un_pri; |
671 | | | 671 | |
672 | mutex_enter(&unp->unp_rxlock); | | 672 | mutex_enter(&unp->unp_rxlock); |
673 | mutex_enter(&unp->unp_txlock); | | 673 | mutex_enter(&unp->unp_txlock); |
674 | unp->unp_stopping = false; | | 674 | unp->unp_stopping = false; |
675 | | | 675 | |
676 | for (size_t i = 0; i < un->un_rx_list_cnt; i++) { | | 676 | for (size_t i = 0; i < un->un_rx_list_cnt; i++) { |
677 | struct usbnet_chain *c = &cd->uncd_rx_chain[i]; | | 677 | struct usbnet_chain *c = &cd->uncd_rx_chain[i]; |
678 | | | 678 | |
679 | usbd_setup_xfer(c->unc_xfer, c, c->unc_buf, un->un_rx_bufsz, | | 679 | usbd_setup_xfer(c->unc_xfer, c, c->unc_buf, un->un_rx_bufsz, |
680 | un->un_rx_xfer_flags, USBD_NO_TIMEOUT, usbnet_rxeof); | | 680 | un->un_rx_xfer_flags, USBD_NO_TIMEOUT, usbnet_rxeof); |
681 | usbd_transfer(c->unc_xfer); | | 681 | usbd_transfer(c->unc_xfer); |
682 | } | | 682 | } |
683 | | | 683 | |
684 | mutex_exit(&unp->unp_txlock); | | 684 | mutex_exit(&unp->unp_txlock); |
685 | mutex_exit(&unp->unp_rxlock); | | 685 | mutex_exit(&unp->unp_rxlock); |
686 | } | | 686 | } |
687 | | | 687 | |
688 | /* Start of common TX functions */ | | 688 | /* Start of common TX functions */ |
689 | | | 689 | |
690 | static size_t | | 690 | static size_t |
691 | usbnet_tx_list_size(struct usbnet_cdata * const cd, struct usbnet * const un) | | 691 | usbnet_tx_list_size(struct usbnet_cdata * const cd, struct usbnet * const un) |
692 | { | | 692 | { |
693 | return sizeof(*cd->uncd_tx_chain) * un->un_tx_list_cnt; | | 693 | return sizeof(*cd->uncd_tx_chain) * un->un_tx_list_cnt; |
694 | } | | 694 | } |
695 | | | 695 | |
696 | static void | | 696 | static void |
697 | usbnet_tx_list_alloc(struct usbnet * const un) | | 697 | usbnet_tx_list_alloc(struct usbnet * const un) |
698 | { | | 698 | { |
699 | struct usbnet_cdata * const cd = un_cdata(un); | | 699 | struct usbnet_cdata * const cd = un_cdata(un); |
700 | | | 700 | |
701 | cd->uncd_tx_chain = kmem_zalloc(usbnet_tx_list_size(cd, un), KM_SLEEP); | | 701 | cd->uncd_tx_chain = kmem_zalloc(usbnet_tx_list_size(cd, un), KM_SLEEP); |
702 | } | | 702 | } |
703 | | | 703 | |
704 | static void | | 704 | static void |
705 | usbnet_tx_list_free(struct usbnet * const un) | | 705 | usbnet_tx_list_free(struct usbnet * const un) |
706 | { | | 706 | { |
707 | struct usbnet_cdata * const cd = un_cdata(un); | | 707 | struct usbnet_cdata * const cd = un_cdata(un); |
708 | | | 708 | |
709 | if (cd->uncd_tx_chain) { | | 709 | if (cd->uncd_tx_chain) { |
710 | kmem_free(cd->uncd_tx_chain, usbnet_tx_list_size(cd, un)); | | 710 | kmem_free(cd->uncd_tx_chain, usbnet_tx_list_size(cd, un)); |
711 | cd->uncd_tx_chain = NULL; | | 711 | cd->uncd_tx_chain = NULL; |
712 | } | | 712 | } |
713 | } | | 713 | } |
714 | | | 714 | |
715 | static int | | 715 | static int |
716 | usbnet_tx_list_init(struct usbnet * const un) | | 716 | usbnet_tx_list_init(struct usbnet * const un) |
717 | { | | 717 | { |
718 | struct usbnet_cdata * const cd = un_cdata(un); | | 718 | struct usbnet_cdata * const cd = un_cdata(un); |
719 | struct usbnet_private * const unp = un->un_pri; | | 719 | struct usbnet_private * const unp = un->un_pri; |
720 | | | 720 | |
721 | for (size_t i = 0; i < un->un_tx_list_cnt; i++) { | | 721 | for (size_t i = 0; i < un->un_tx_list_cnt; i++) { |
722 | struct usbnet_chain *c = &cd->uncd_tx_chain[i]; | | 722 | struct usbnet_chain *c = &cd->uncd_tx_chain[i]; |
723 | | | 723 | |
724 | c->unc_un = un; | | 724 | c->unc_un = un; |
725 | if (c->unc_xfer == NULL) { | | 725 | if (c->unc_xfer == NULL) { |
726 | int err = usbd_create_xfer(unp->unp_ep[USBNET_ENDPT_TX], | | 726 | int err = usbd_create_xfer(unp->unp_ep[USBNET_ENDPT_TX], |
727 | un->un_tx_bufsz, un->un_tx_xfer_flags, 0, | | 727 | un->un_tx_bufsz, un->un_tx_xfer_flags, 0, |
728 | &c->unc_xfer); | | 728 | &c->unc_xfer); |
729 | if (err) | | 729 | if (err) |
730 | return err; | | 730 | return err; |
731 | c->unc_buf = usbd_get_buffer(c->unc_xfer); | | 731 | c->unc_buf = usbd_get_buffer(c->unc_xfer); |
732 | } | | 732 | } |
733 | } | | 733 | } |
734 | | | 734 | |
735 | return 0; | | 735 | return 0; |
736 | } | | 736 | } |
737 | | | 737 | |
738 | static void | | 738 | static void |
739 | usbnet_tx_list_fini(struct usbnet * const un) | | 739 | usbnet_tx_list_fini(struct usbnet * const un) |
740 | { | | 740 | { |
741 | struct usbnet_cdata * const cd = un_cdata(un); | | 741 | struct usbnet_cdata * const cd = un_cdata(un); |
742 | | | 742 | |
743 | for (size_t i = 0; i < un->un_tx_list_cnt; i++) { | | 743 | for (size_t i = 0; i < un->un_tx_list_cnt; i++) { |
744 | struct usbnet_chain *c = &cd->uncd_tx_chain[i]; | | 744 | struct usbnet_chain *c = &cd->uncd_tx_chain[i]; |
745 | | | 745 | |
746 | if (c->unc_xfer != NULL) { | | 746 | if (c->unc_xfer != NULL) { |
747 | usbd_destroy_xfer(c->unc_xfer); | | 747 | usbd_destroy_xfer(c->unc_xfer); |
748 | c->unc_xfer = NULL; | | 748 | c->unc_xfer = NULL; |
749 | c->unc_buf = NULL; | | 749 | c->unc_buf = NULL; |
750 | } | | 750 | } |
751 | } | | 751 | } |
752 | cd->uncd_tx_prod = cd->uncd_tx_cnt = 0; | | 752 | cd->uncd_tx_prod = cd->uncd_tx_cnt = 0; |
753 | } | | 753 | } |
754 | | | 754 | |
755 | /* End of common TX functions */ | | 755 | /* End of common TX functions */ |
756 | | | 756 | |
757 | /* Endpoint pipe management. */ | | 757 | /* Endpoint pipe management. */ |
758 | | | 758 | |
759 | static void | | 759 | static void |
760 | usbnet_ep_close_pipes(struct usbnet * const un) | | 760 | usbnet_ep_close_pipes(struct usbnet * const un) |
761 | { | | 761 | { |
762 | struct usbnet_private * const unp = un->un_pri; | | 762 | struct usbnet_private * const unp = un->un_pri; |
763 | | | 763 | |
764 | for (size_t i = 0; i < __arraycount(unp->unp_ep); i++) { | | 764 | for (size_t i = 0; i < __arraycount(unp->unp_ep); i++) { |
765 | if (unp->unp_ep[i] == NULL) | | 765 | if (unp->unp_ep[i] == NULL) |
766 | continue; | | 766 | continue; |
767 | usbd_status err = usbd_close_pipe(unp->unp_ep[i]); | | 767 | usbd_status err = usbd_close_pipe(unp->unp_ep[i]); |
768 | if (err) | | 768 | if (err) |
769 | aprint_error_dev(un->un_dev, "close pipe %zu: %s\n", i, | | 769 | aprint_error_dev(un->un_dev, "close pipe %zu: %s\n", i, |
770 | usbd_errstr(err)); | | 770 | usbd_errstr(err)); |
771 | unp->unp_ep[i] = NULL; | | 771 | unp->unp_ep[i] = NULL; |
772 | } | | 772 | } |
773 | } | | 773 | } |
774 | | | 774 | |
775 | static usbd_status | | 775 | static usbd_status |
776 | usbnet_ep_open_pipes(struct usbnet * const un) | | 776 | usbnet_ep_open_pipes(struct usbnet * const un) |
777 | { | | 777 | { |
778 | struct usbnet_intr * const uni = un->un_intr; | | 778 | struct usbnet_intr * const uni = un->un_intr; |
779 | struct usbnet_private * const unp = un->un_pri; | | 779 | struct usbnet_private * const unp = un->un_pri; |
780 | | | 780 | |
781 | for (size_t i = 0; i < __arraycount(unp->unp_ep); i++) { | | 781 | for (size_t i = 0; i < __arraycount(unp->unp_ep); i++) { |
782 | usbd_status err; | | 782 | usbd_status err; |
783 | | | 783 | |
784 | if (un->un_ed[i] == 0) | | 784 | if (un->un_ed[i] == 0) |
785 | continue; | | 785 | continue; |
786 | | | 786 | |
787 | if (i == USBNET_ENDPT_INTR && uni) { | | 787 | if (i == USBNET_ENDPT_INTR && uni) { |
788 | err = usbd_open_pipe_intr(un->un_iface, un->un_ed[i], | | 788 | err = usbd_open_pipe_intr(un->un_iface, un->un_ed[i], |
789 | USBD_EXCLUSIVE_USE | USBD_MPSAFE, &unp->unp_ep[i], un, | | 789 | USBD_EXCLUSIVE_USE | USBD_MPSAFE, &unp->unp_ep[i], un, |
790 | uni->uni_buf, uni->uni_bufsz, usbnet_pipe_intr, | | 790 | uni->uni_buf, uni->uni_bufsz, usbnet_pipe_intr, |
791 | uni->uni_interval); | | 791 | uni->uni_interval); |
792 | } else { | | 792 | } else { |
793 | err = usbd_open_pipe(un->un_iface, un->un_ed[i], | | 793 | err = usbd_open_pipe(un->un_iface, un->un_ed[i], |
794 | USBD_EXCLUSIVE_USE | USBD_MPSAFE, &unp->unp_ep[i]); | | 794 | USBD_EXCLUSIVE_USE | USBD_MPSAFE, &unp->unp_ep[i]); |
795 | } | | 795 | } |
796 | if (err) { | | 796 | if (err) { |
797 | usbnet_ep_close_pipes(un); | | 797 | usbnet_ep_close_pipes(un); |
798 | return err; | | 798 | return err; |
799 | } | | 799 | } |
800 | } | | 800 | } |
801 | | | 801 | |
802 | return USBD_NORMAL_COMPLETION; | | 802 | return USBD_NORMAL_COMPLETION; |
803 | } | | 803 | } |
804 | | | 804 | |
805 | static usbd_status | | 805 | static usbd_status |
806 | usbnet_ep_stop_pipes(struct usbnet * const un) | | 806 | usbnet_ep_stop_pipes(struct usbnet * const un) |
807 | { | | 807 | { |
808 | struct usbnet_private * const unp = un->un_pri; | | 808 | struct usbnet_private * const unp = un->un_pri; |
809 | usbd_status err = USBD_NORMAL_COMPLETION; | | 809 | usbd_status err = USBD_NORMAL_COMPLETION; |
810 | | | 810 | |
811 | for (size_t i = 0; i < __arraycount(unp->unp_ep); i++) { | | 811 | for (size_t i = 0; i < __arraycount(unp->unp_ep); i++) { |
812 | if (unp->unp_ep[i] == NULL) | | 812 | if (unp->unp_ep[i] == NULL) |
813 | continue; | | 813 | continue; |
814 | usbd_status err2 = usbd_abort_pipe(unp->unp_ep[i]); | | 814 | usbd_status err2 = usbd_abort_pipe(unp->unp_ep[i]); |
815 | if (err == USBD_NORMAL_COMPLETION && err2) | | 815 | if (err == USBD_NORMAL_COMPLETION && err2) |
816 | err = err2; | | 816 | err = err2; |
817 | } | | 817 | } |
818 | | | 818 | |
819 | return err; | | 819 | return err; |
820 | } | | 820 | } |
821 | | | 821 | |
822 | int | | 822 | int |
823 | usbnet_init_rx_tx(struct usbnet * const un) | | 823 | usbnet_init_rx_tx(struct usbnet * const un) |
824 | { | | 824 | { |
825 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 825 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
826 | struct usbnet_private * const unp = un->un_pri; | | 826 | struct usbnet_private * const unp = un->un_pri; |
827 | struct ifnet * const ifp = usbnet_ifp(un); | | 827 | struct ifnet * const ifp = usbnet_ifp(un); |
828 | usbd_status err; | | 828 | usbd_status err; |
829 | int error = 0; | | 829 | int error = 0; |
830 | | | 830 | |
831 | KASSERTMSG(!unp->unp_ifp_attached || IFNET_LOCKED(ifp), | | 831 | KASSERTMSG(!unp->unp_ifp_attached || IFNET_LOCKED(ifp), |
832 | "%s", ifp->if_xname); | | 832 | "%s", ifp->if_xname); |
833 | | | 833 | |
834 | usbnet_isowned_core(un); | | 834 | usbnet_isowned_core(un); |
835 | | | 835 | |
836 | if (usbnet_isdying(un)) { | | 836 | if (usbnet_isdying(un)) { |
837 | return EIO; | | 837 | return EIO; |
838 | } | | 838 | } |
839 | | | 839 | |
840 | usbnet_busy(un); | | | |
841 | | | | |
842 | /* Open RX and TX pipes. */ | | 840 | /* Open RX and TX pipes. */ |
843 | err = usbnet_ep_open_pipes(un); | | 841 | err = usbnet_ep_open_pipes(un); |
844 | if (err) { | | 842 | if (err) { |
845 | aprint_error_dev(un->un_dev, "open rx/tx pipes failed: %s\n", | | 843 | aprint_error_dev(un->un_dev, "open rx/tx pipes failed: %s\n", |
846 | usbd_errstr(err)); | | 844 | usbd_errstr(err)); |
847 | error = EIO; | | 845 | error = EIO; |
848 | goto out; | | 846 | goto out; |
849 | } | | 847 | } |
850 | | | 848 | |
851 | /* Init RX ring. */ | | 849 | /* Init RX ring. */ |
852 | if (usbnet_rx_list_init(un)) { | | 850 | if (usbnet_rx_list_init(un)) { |
853 | aprint_error_dev(un->un_dev, "rx list init failed\n"); | | 851 | aprint_error_dev(un->un_dev, "rx list init failed\n"); |
854 | error = ENOBUFS; | | 852 | error = ENOBUFS; |
855 | goto out; | | 853 | goto out; |
856 | } | | 854 | } |
857 | | | 855 | |
858 | /* Init TX ring. */ | | 856 | /* Init TX ring. */ |
859 | if (usbnet_tx_list_init(un)) { | | 857 | if (usbnet_tx_list_init(un)) { |
860 | aprint_error_dev(un->un_dev, "tx list init failed\n"); | | 858 | aprint_error_dev(un->un_dev, "tx list init failed\n"); |
861 | error = ENOBUFS; | | 859 | error = ENOBUFS; |
862 | goto out; | | 860 | goto out; |
863 | } | | 861 | } |
864 | | | 862 | |
865 | /* Indicate we are up and running. */ | | 863 | /* Indicate we are up and running. */ |
866 | /* XXX urndis calls usbnet_init_rx_tx before usbnet_attach_ifp. */ | | 864 | /* XXX urndis calls usbnet_init_rx_tx before usbnet_attach_ifp. */ |
867 | KASSERTMSG(!unp->unp_ifp_attached || IFNET_LOCKED(ifp), | | 865 | KASSERTMSG(!unp->unp_ifp_attached || IFNET_LOCKED(ifp), |
868 | "%s", ifp->if_xname); | | 866 | "%s", ifp->if_xname); |
869 | ifp->if_flags |= IFF_RUNNING; | | 867 | ifp->if_flags |= IFF_RUNNING; |
870 | | | 868 | |
871 | /* Start up the receive pipe(s). */ | | 869 | /* Start up the receive pipe(s). */ |
872 | usbnet_rx_start_pipes(un); | | 870 | usbnet_rx_start_pipes(un); |
873 | | | 871 | |
874 | callout_schedule(&unp->unp_stat_ch, hz); | | 872 | callout_schedule(&unp->unp_stat_ch, hz); |
875 | | | 873 | |
876 | out: | | 874 | out: |
877 | if (error) { | | 875 | if (error) { |
878 | usbnet_rx_list_fini(un); | | 876 | usbnet_rx_list_fini(un); |
879 | usbnet_tx_list_fini(un); | | 877 | usbnet_tx_list_fini(un); |
880 | usbnet_ep_close_pipes(un); | | 878 | usbnet_ep_close_pipes(un); |
881 | } | | 879 | } |
882 | usbnet_unbusy(un); | | | |
883 | | | 880 | |
884 | usbnet_isowned_core(un); | | 881 | usbnet_isowned_core(un); |
885 | | | 882 | |
886 | return error; | | 883 | return error; |
887 | } | | 884 | } |
888 | | | 885 | |
889 | void | | 886 | void |
890 | usbnet_busy(struct usbnet *un) | | 887 | usbnet_busy(struct usbnet *un) |
891 | { | | 888 | { |
892 | struct usbnet_private * const unp = un->un_pri; | | 889 | struct usbnet_private * const unp = un->un_pri; |
893 | | | 890 | |
894 | usbnet_isowned_core(un); | | 891 | usbnet_isowned_core(un); |
895 | | | 892 | |
896 | unp->unp_refcnt++; | | 893 | unp->unp_refcnt++; |
897 | } | | 894 | } |
898 | | | 895 | |
899 | void | | 896 | void |
900 | usbnet_unbusy(struct usbnet *un) | | 897 | usbnet_unbusy(struct usbnet *un) |
901 | { | | 898 | { |
902 | struct usbnet_private * const unp = un->un_pri; | | 899 | struct usbnet_private * const unp = un->un_pri; |
903 | | | 900 | |
904 | usbnet_isowned_core(un); | | 901 | usbnet_isowned_core(un); |
905 | | | 902 | |
906 | if (--unp->unp_refcnt < 0) | | 903 | if (--unp->unp_refcnt < 0) |
907 | cv_broadcast(&unp->unp_detachcv); | | 904 | cv_broadcast(&unp->unp_detachcv); |
908 | } | | 905 | } |
909 | | | 906 | |
910 | /* MII management. */ | | 907 | /* MII management. */ |
911 | | | 908 | |
912 | int | | 909 | int |
913 | usbnet_mii_readreg(device_t dev, int phy, int reg, uint16_t *val) | | 910 | usbnet_mii_readreg(device_t dev, int phy, int reg, uint16_t *val) |
914 | { | | 911 | { |
915 | USBNETHIST_FUNC(); | | 912 | USBNETHIST_FUNC(); |
916 | struct usbnet * const un = device_private(dev); | | 913 | struct usbnet * const un = device_private(dev); |
917 | int err; | | 914 | int err; |
918 | | | 915 | |
919 | /* MII layer ensures core_lock is held. */ | | 916 | /* MII layer ensures core_lock is held. */ |
920 | usbnet_isowned_core(un); | | 917 | usbnet_isowned_core(un); |
921 | | | 918 | |
922 | if (usbnet_isdying(un)) { | | 919 | if (usbnet_isdying(un)) { |
923 | return EIO; | | 920 | return EIO; |
924 | } | | 921 | } |
925 | | | 922 | |
926 | usbnet_busy(un); | | 923 | usbnet_busy(un); |
927 | err = uno_read_reg(un, phy, reg, val); | | 924 | err = uno_read_reg(un, phy, reg, val); |
928 | usbnet_unbusy(un); | | 925 | usbnet_unbusy(un); |
929 | | | 926 | |
930 | if (err) { | | 927 | if (err) { |
931 | USBNETHIST_CALLARGS("%jd: read PHY failed: %jd", | | 928 | USBNETHIST_CALLARGS("%jd: read PHY failed: %jd", |
932 | un->un_pri->unp_number, err, 0, 0); | | 929 | un->un_pri->unp_number, err, 0, 0); |
933 | return err; | | 930 | return err; |
934 | } | | 931 | } |
935 | | | 932 | |
936 | return 0; | | 933 | return 0; |
937 | } | | 934 | } |
938 | | | 935 | |
939 | int | | 936 | int |
940 | usbnet_mii_writereg(device_t dev, int phy, int reg, uint16_t val) | | 937 | usbnet_mii_writereg(device_t dev, int phy, int reg, uint16_t val) |
941 | { | | 938 | { |
942 | USBNETHIST_FUNC(); | | 939 | USBNETHIST_FUNC(); |
943 | struct usbnet * const un = device_private(dev); | | 940 | struct usbnet * const un = device_private(dev); |
944 | int err; | | 941 | int err; |
945 | | | 942 | |
946 | /* MII layer ensures core_lock is held. */ | | 943 | /* MII layer ensures core_lock is held. */ |
947 | usbnet_isowned_core(un); | | 944 | usbnet_isowned_core(un); |
948 | | | 945 | |
949 | if (usbnet_isdying(un)) { | | 946 | if (usbnet_isdying(un)) { |
950 | return EIO; | | 947 | return EIO; |
951 | } | | 948 | } |
952 | | | 949 | |
953 | usbnet_busy(un); | | 950 | usbnet_busy(un); |
954 | err = uno_write_reg(un, phy, reg, val); | | 951 | err = uno_write_reg(un, phy, reg, val); |
955 | usbnet_unbusy(un); | | 952 | usbnet_unbusy(un); |
956 | | | 953 | |
957 | if (err) { | | 954 | if (err) { |
958 | USBNETHIST_CALLARGS("%jd: write PHY failed: %jd", | | 955 | USBNETHIST_CALLARGS("%jd: write PHY failed: %jd", |
959 | un->un_pri->unp_number, err, 0, 0); | | 956 | un->un_pri->unp_number, err, 0, 0); |
960 | return err; | | 957 | return err; |
961 | } | | 958 | } |
962 | | | 959 | |
963 | return 0; | | 960 | return 0; |
964 | } | | 961 | } |
965 | | | 962 | |
966 | void | | 963 | void |
967 | usbnet_mii_statchg(struct ifnet *ifp) | | 964 | usbnet_mii_statchg(struct ifnet *ifp) |
968 | { | | 965 | { |
969 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 966 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
970 | struct usbnet * const un = ifp->if_softc; | | 967 | struct usbnet * const un = ifp->if_softc; |
971 | | | 968 | |
972 | /* MII layer ensures core_lock is held. */ | | 969 | /* MII layer ensures core_lock is held. */ |
973 | usbnet_isowned_core(un); | | 970 | usbnet_isowned_core(un); |
974 | | | 971 | |
975 | usbnet_busy(un); | | 972 | usbnet_busy(un); |
976 | uno_mii_statchg(un, ifp); | | 973 | uno_mii_statchg(un, ifp); |
977 | usbnet_unbusy(un); | | 974 | usbnet_unbusy(un); |
978 | } | | 975 | } |
979 | | | 976 | |
980 | static int | | 977 | static int |
981 | usbnet_media_upd(struct ifnet *ifp) | | 978 | usbnet_media_upd(struct ifnet *ifp) |
982 | { | | 979 | { |
983 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 980 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
984 | struct usbnet * const un = ifp->if_softc; | | 981 | struct usbnet * const un = ifp->if_softc; |
985 | struct usbnet_private * const unp = un->un_pri; | | 982 | struct usbnet_private * const unp = un->un_pri; |
986 | struct mii_data * const mii = usbnet_mii(un); | | 983 | struct mii_data * const mii = usbnet_mii(un); |
987 | | | 984 | |
988 | /* ifmedia layer ensures core_lock is held. */ | | 985 | /* ifmedia layer ensures core_lock is held. */ |
989 | usbnet_isowned_core(un); | | 986 | usbnet_isowned_core(un); |
990 | | | 987 | |
991 | /* ifmedia changes only with IFNET_LOCK held. */ | | 988 | /* ifmedia changes only with IFNET_LOCK held. */ |
992 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); | | 989 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); |
993 | | | 990 | |
994 | if (usbnet_isdying(un)) | | 991 | if (usbnet_isdying(un)) |
995 | return EIO; | | 992 | return EIO; |
996 | | | 993 | |
997 | unp->unp_link = false; | | 994 | unp->unp_link = false; |
998 | | | 995 | |
999 | if (mii->mii_instance) { | | 996 | if (mii->mii_instance) { |
1000 | struct mii_softc *miisc; | | 997 | struct mii_softc *miisc; |
1001 | | | 998 | |
1002 | LIST_FOREACH(miisc, &mii->mii_phys, mii_list) | | 999 | LIST_FOREACH(miisc, &mii->mii_phys, mii_list) |
1003 | mii_phy_reset(miisc); | | 1000 | mii_phy_reset(miisc); |
1004 | } | | 1001 | } |
1005 | | | 1002 | |
1006 | return ether_mediachange(ifp); | | 1003 | return ether_mediachange(ifp); |
1007 | } | | 1004 | } |
1008 | | | 1005 | |
1009 | /* ioctl */ | | 1006 | /* ioctl */ |
1010 | | | 1007 | |
1011 | static int | | 1008 | static int |
1012 | usbnet_ifflags_cb(struct ethercom *ec) | | 1009 | usbnet_ifflags_cb(struct ethercom *ec) |
1013 | { | | 1010 | { |
1014 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 1011 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
1015 | struct ifnet *ifp = &ec->ec_if; | | 1012 | struct ifnet *ifp = &ec->ec_if; |
1016 | struct usbnet *un = ifp->if_softc; | | 1013 | struct usbnet *un = ifp->if_softc; |
1017 | struct usbnet_private * const unp = un->un_pri; | | 1014 | struct usbnet_private * const unp = un->un_pri; |
1018 | int rv = 0; | | 1015 | int rv = 0; |
1019 | | | 1016 | |
1020 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); | | 1017 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); |
1021 | | | 1018 | |
1022 | mutex_enter(&unp->unp_core_lock); | | 1019 | mutex_enter(&unp->unp_core_lock); |
1023 | | | 1020 | |
1024 | const u_short changed = ifp->if_flags ^ unp->unp_if_flags; | | 1021 | const u_short changed = ifp->if_flags ^ unp->unp_if_flags; |
1025 | if ((changed & ~(IFF_CANTCHANGE | IFF_DEBUG)) == 0) { | | 1022 | if ((changed & ~(IFF_CANTCHANGE | IFF_DEBUG)) == 0) { |
1026 | unp->unp_if_flags = ifp->if_flags; | | 1023 | unp->unp_if_flags = ifp->if_flags; |
1027 | if ((changed & IFF_PROMISC) != 0) | | 1024 | if ((changed & IFF_PROMISC) != 0) |
1028 | rv = ENETRESET; | | 1025 | rv = ENETRESET; |
1029 | } else { | | 1026 | } else { |
1030 | rv = ENETRESET; | | 1027 | rv = ENETRESET; |
1031 | } | | 1028 | } |
1032 | | | 1029 | |
1033 | mutex_exit(&unp->unp_core_lock); | | 1030 | mutex_exit(&unp->unp_core_lock); |
1034 | | | 1031 | |
1035 | return rv; | | 1032 | return rv; |
1036 | } | | 1033 | } |
1037 | | | 1034 | |
1038 | static int | | 1035 | static int |
1039 | usbnet_if_ioctl(struct ifnet *ifp, u_long cmd, void *data) | | 1036 | usbnet_if_ioctl(struct ifnet *ifp, u_long cmd, void *data) |
1040 | { | | 1037 | { |
1041 | USBNETHIST_FUNC(); | | 1038 | USBNETHIST_FUNC(); |
1042 | struct usbnet * const un = ifp->if_softc; | | 1039 | struct usbnet * const un = ifp->if_softc; |
1043 | struct usbnet_private * const unp __unused = un->un_pri; | | 1040 | struct usbnet_private * const unp __unused = un->un_pri; |
1044 | int error; | | 1041 | int error; |
1045 | | | 1042 | |
1046 | USBNETHIST_CALLARGSN(11, "%jd: enter %#jx data %#jx", | | 1043 | USBNETHIST_CALLARGSN(11, "%jd: enter %#jx data %#jx", |
1047 | unp->unp_number, cmd, (uintptr_t)data, 0); | | 1044 | unp->unp_number, cmd, (uintptr_t)data, 0); |
1048 | | | 1045 | |
1049 | if (un->un_ops->uno_override_ioctl) | | 1046 | if (un->un_ops->uno_override_ioctl) |
1050 | return uno_override_ioctl(un, ifp, cmd, data); | | 1047 | return uno_override_ioctl(un, ifp, cmd, data); |
1051 | | | 1048 | |
1052 | error = ether_ioctl(ifp, cmd, data); | | 1049 | error = ether_ioctl(ifp, cmd, data); |
1053 | if (error == ENETRESET) { | | 1050 | if (error == ENETRESET) { |
1054 | switch (cmd) { | | 1051 | switch (cmd) { |
1055 | case SIOCADDMULTI: | | 1052 | case SIOCADDMULTI: |
1056 | case SIOCDELMULTI: | | 1053 | case SIOCDELMULTI: |
1057 | usb_add_task(un->un_udev, &unp->unp_mcasttask, | | 1054 | usb_add_task(un->un_udev, &unp->unp_mcasttask, |
1058 | USB_TASKQ_DRIVER); | | 1055 | USB_TASKQ_DRIVER); |
1059 | error = 0; | | 1056 | error = 0; |
1060 | break; | | 1057 | break; |
1061 | default: | | 1058 | default: |
1062 | error = uno_ioctl(un, ifp, cmd, data); | | 1059 | error = uno_ioctl(un, ifp, cmd, data); |
1063 | } | | 1060 | } |
1064 | } | | 1061 | } |
1065 | | | 1062 | |
1066 | return error; | | 1063 | return error; |
1067 | } | | 1064 | } |
1068 | | | 1065 | |
1069 | static void | | 1066 | static void |
1070 | usbnet_mcast_task(void *arg) | | 1067 | usbnet_mcast_task(void *arg) |
1071 | { | | 1068 | { |
1072 | USBNETHIST_FUNC(); | | 1069 | USBNETHIST_FUNC(); |
1073 | struct usbnet * const un = arg; | | 1070 | struct usbnet * const un = arg; |
1074 | struct ifnet * const ifp = usbnet_ifp(un); | | 1071 | struct ifnet * const ifp = usbnet_ifp(un); |
1075 | | | 1072 | |
1076 | USBNETHIST_CALLARGSN(10, "%jd: enter", | | 1073 | USBNETHIST_CALLARGSN(10, "%jd: enter", |
1077 | un->un_pri->unp_number, 0, 0, 0); | | 1074 | un->un_pri->unp_number, 0, 0, 0); |
1078 | | | 1075 | |
1079 | /* | | 1076 | /* |
1080 | * If we're detaching, we must check usbnet_isdying _before_ | | 1077 | * If we're detaching, we must check usbnet_isdying _before_ |
1081 | * touching IFNET_LOCK -- the ifnet may have been detached by | | 1078 | * touching IFNET_LOCK -- the ifnet may have been detached by |
1082 | * the time this task runs. This is racy -- unp_dying may be | | 1079 | * the time this task runs. This is racy -- unp_dying may be |
1083 | * set immediately after we test it -- but nevertheless safe, | | 1080 | * set immediately after we test it -- but nevertheless safe, |
1084 | * because usbnet_detach waits for the task to complete before | | 1081 | * because usbnet_detach waits for the task to complete before |
1085 | * issuing if_detach, and necessary, so that we don't touch | | 1082 | * issuing if_detach, and necessary, so that we don't touch |
1086 | * IFNET_LOCK after if_detach. See usbnet_detach for details. | | 1083 | * IFNET_LOCK after if_detach. See usbnet_detach for details. |
1087 | */ | | 1084 | */ |
1088 | if (usbnet_isdying(un)) | | 1085 | if (usbnet_isdying(un)) |
1089 | return; | | 1086 | return; |
1090 | | | 1087 | |
1091 | /* | | 1088 | /* |
1092 | * If the hardware is running, ask the driver to reprogram the | | 1089 | * If the hardware is running, ask the driver to reprogram the |
1093 | * multicast filter. If the hardware is not running, the | | 1090 | * multicast filter. If the hardware is not running, the |
1094 | * driver is responsible for programming the multicast filter | | 1091 | * driver is responsible for programming the multicast filter |
1095 | * as part of its uno_init routine to bring the hardware up. | | 1092 | * as part of its uno_init routine to bring the hardware up. |
1096 | */ | | 1093 | */ |
1097 | IFNET_LOCK(ifp); | | 1094 | IFNET_LOCK(ifp); |
1098 | if (ifp->if_flags & IFF_RUNNING) { | | 1095 | if (ifp->if_flags & IFF_RUNNING) { |
1099 | if (un->un_ops->uno_mcast) | | 1096 | if (un->un_ops->uno_mcast) |
1100 | (*un->un_ops->uno_mcast)(ifp); | | 1097 | (*un->un_ops->uno_mcast)(ifp); |
1101 | } | | 1098 | } |
1102 | IFNET_UNLOCK(ifp); | | 1099 | IFNET_UNLOCK(ifp); |
1103 | } | | 1100 | } |
1104 | | | 1101 | |
1105 | /* | | 1102 | /* |
1106 | * Generic stop network function: | | 1103 | * Generic stop network function: |
1107 | * - mark as stopping | | 1104 | * - mark as stopping |
1108 | * - call DD routine to stop the device | | 1105 | * - call DD routine to stop the device |
1109 | * - turn off running, timer, statchg callout, link | | 1106 | * - turn off running, timer, statchg callout, link |
1110 | * - stop transfers | | 1107 | * - stop transfers |
1111 | * - free RX and TX resources | | 1108 | * - free RX and TX resources |
1112 | * - close pipes | | 1109 | * - close pipes |
1113 | * | | 1110 | * |
1114 | * usbnet_stop() is exported for drivers to use, expects lock held. | | 1111 | * usbnet_stop() is exported for drivers to use, expects lock held. |
1115 | * | | 1112 | * |
1116 | * usbnet_if_stop() is for the if_stop handler. | | 1113 | * usbnet_if_stop() is for the if_stop handler. |
1117 | */ | | 1114 | */ |
1118 | void | | 1115 | void |
1119 | usbnet_stop(struct usbnet *un, struct ifnet *ifp, int disable) | | 1116 | usbnet_stop(struct usbnet *un, struct ifnet *ifp, int disable) |
1120 | { | | 1117 | { |
1121 | struct usbnet_private * const unp = un->un_pri; | | 1118 | struct usbnet_private * const unp = un->un_pri; |
1122 | | | 1119 | |
1123 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 1120 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
1124 | | | 1121 | |
1125 | KASSERTMSG(!unp->unp_ifp_attached || IFNET_LOCKED(ifp), | | 1122 | KASSERTMSG(!unp->unp_ifp_attached || IFNET_LOCKED(ifp), |
1126 | "%s", ifp->if_xname); | | 1123 | "%s", ifp->if_xname); |
1127 | usbnet_isowned_core(un); | | 1124 | usbnet_isowned_core(un); |
1128 | | | 1125 | |
1129 | usbnet_busy(un); | | | |
1130 | | | | |
1131 | /* | | 1126 | /* |
1132 | * Prevent new activity (rescheduling ticks, xfers, &c.) and | | 1127 | * Prevent new activity (rescheduling ticks, xfers, &c.) and |
1133 | * clear the watchdog timer. | | 1128 | * clear the watchdog timer. |
1134 | */ | | 1129 | */ |
1135 | mutex_enter(&unp->unp_rxlock); | | 1130 | mutex_enter(&unp->unp_rxlock); |
1136 | mutex_enter(&unp->unp_txlock); | | 1131 | mutex_enter(&unp->unp_txlock); |
1137 | unp->unp_stopping = true; | | 1132 | unp->unp_stopping = true; |
1138 | unp->unp_timer = 0; | | 1133 | unp->unp_timer = 0; |
1139 | mutex_exit(&unp->unp_txlock); | | 1134 | mutex_exit(&unp->unp_txlock); |
1140 | mutex_exit(&unp->unp_rxlock); | | 1135 | mutex_exit(&unp->unp_rxlock); |
1141 | | | 1136 | |
1142 | /* | | 1137 | /* |
1143 | * Stop the timer first, then the task -- if the timer was | | 1138 | * Stop the timer first, then the task -- if the timer was |
1144 | * already firing, we stop the task or wait for it complete | | 1139 | * already firing, we stop the task or wait for it complete |
1145 | * only after if last fired. Setting unp_stopping prevents the | | 1140 | * only after if last fired. Setting unp_stopping prevents the |
1146 | * timer task from being scheduled again. | | 1141 | * timer task from being scheduled again. |
1147 | */ | | 1142 | */ |
1148 | callout_halt(&unp->unp_stat_ch, &unp->unp_core_lock); | | 1143 | callout_halt(&unp->unp_stat_ch, &unp->unp_core_lock); |
1149 | usb_rem_task_wait(un->un_udev, &unp->unp_ticktask, USB_TASKQ_DRIVER, | | 1144 | usb_rem_task_wait(un->un_udev, &unp->unp_ticktask, USB_TASKQ_DRIVER, |
1150 | &unp->unp_core_lock); | | 1145 | &unp->unp_core_lock); |
1151 | | | 1146 | |
1152 | /* | | 1147 | /* |
1153 | * Now that the software is quiescent, ask the driver to stop | | 1148 | * Now that the software is quiescent, ask the driver to stop |
1154 | * the hardware. The driver's uno_stop routine now has | | 1149 | * the hardware. The driver's uno_stop routine now has |
1155 | * exclusive access to any registers that might previously have | | 1150 | * exclusive access to any registers that might previously have |
1156 | * been used by to ifmedia, mii, or ioctl callbacks. | | 1151 | * been used by to ifmedia, mii, or ioctl callbacks. |
1157 | * | | 1152 | * |
1158 | * Don't bother if the device is being detached, though -- if | | 1153 | * Don't bother if the device is being detached, though -- if |
1159 | * it's been unplugged then there's no point in trying to touch | | 1154 | * it's been unplugged then there's no point in trying to touch |
1160 | * the registers. | | 1155 | * the registers. |
1161 | */ | | 1156 | */ |
1162 | if (!usbnet_isdying(un)) | | 1157 | if (!usbnet_isdying(un)) |
1163 | uno_stop(un, ifp, disable); | | 1158 | uno_stop(un, ifp, disable); |
1164 | | | 1159 | |
1165 | /* Stop transfers. */ | | 1160 | /* Stop transfers. */ |
1166 | usbnet_ep_stop_pipes(un); | | 1161 | usbnet_ep_stop_pipes(un); |
1167 | | | 1162 | |
1168 | /* Free RX/TX resources. */ | | 1163 | /* Free RX/TX resources. */ |
1169 | usbnet_rx_list_fini(un); | | 1164 | usbnet_rx_list_fini(un); |
1170 | usbnet_tx_list_fini(un); | | 1165 | usbnet_tx_list_fini(un); |
1171 | | | 1166 | |
1172 | /* Close pipes. */ | | 1167 | /* Close pipes. */ |
1173 | usbnet_ep_close_pipes(un); | | 1168 | usbnet_ep_close_pipes(un); |
1174 | | | 1169 | |
1175 | /* Everything is quesced now. */ | | 1170 | /* Everything is quesced now. */ |
1176 | KASSERTMSG(!unp->unp_ifp_attached || IFNET_LOCKED(ifp), | | 1171 | KASSERTMSG(!unp->unp_ifp_attached || IFNET_LOCKED(ifp), |
1177 | "%s", ifp->if_xname); | | 1172 | "%s", ifp->if_xname); |
1178 | ifp->if_flags &= ~IFF_RUNNING; | | 1173 | ifp->if_flags &= ~IFF_RUNNING; |
1179 | | | | |
1180 | usbnet_unbusy(un); | | | |
1181 | } | | 1174 | } |
1182 | | | 1175 | |
1183 | static void | | 1176 | static void |
1184 | usbnet_if_stop(struct ifnet *ifp, int disable) | | 1177 | usbnet_if_stop(struct ifnet *ifp, int disable) |
1185 | { | | 1178 | { |
1186 | struct usbnet * const un = ifp->if_softc; | | 1179 | struct usbnet * const un = ifp->if_softc; |
1187 | struct usbnet_private * const unp = un->un_pri; | | 1180 | struct usbnet_private * const unp = un->un_pri; |
1188 | | | 1181 | |
1189 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); | | 1182 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); |
1190 | | | 1183 | |
1191 | mutex_enter(&unp->unp_core_lock); | | 1184 | mutex_enter(&unp->unp_core_lock); |
1192 | usbnet_stop(un, ifp, disable); | | 1185 | usbnet_stop(un, ifp, disable); |
1193 | mutex_exit(&unp->unp_core_lock); | | 1186 | mutex_exit(&unp->unp_core_lock); |
1194 | } | | 1187 | } |
1195 | | | 1188 | |
1196 | /* | | 1189 | /* |
1197 | * Generic tick task function. | | 1190 | * Generic tick task function. |
1198 | * | | 1191 | * |
1199 | * usbnet_tick() is triggered from a callout, and triggers a call to | | 1192 | * usbnet_tick() is triggered from a callout, and triggers a call to |
1200 | * usbnet_tick_task() from the usb_task subsystem. | | 1193 | * usbnet_tick_task() from the usb_task subsystem. |
1201 | */ | | 1194 | */ |
1202 | static void | | 1195 | static void |
1203 | usbnet_tick(void *arg) | | 1196 | usbnet_tick(void *arg) |
1204 | { | | 1197 | { |
1205 | USBNETHIST_FUNC(); | | 1198 | USBNETHIST_FUNC(); |
1206 | struct usbnet * const un = arg; | | 1199 | struct usbnet * const un = arg; |
1207 | struct usbnet_private * const unp = un->un_pri; | | 1200 | struct usbnet_private * const unp = un->un_pri; |
1208 | | | 1201 | |
1209 | USBNETHIST_CALLARGSN(10, "%jd: enter", unp->unp_number, 0, 0, 0); | | 1202 | USBNETHIST_CALLARGSN(10, "%jd: enter", unp->unp_number, 0, 0, 0); |
1210 | | | 1203 | |
1211 | /* Perform periodic stuff in process context */ | | 1204 | /* Perform periodic stuff in process context */ |
1212 | usb_add_task(un->un_udev, &unp->unp_ticktask, USB_TASKQ_DRIVER); | | 1205 | usb_add_task(un->un_udev, &unp->unp_ticktask, USB_TASKQ_DRIVER); |
1213 | } | | 1206 | } |
1214 | | | 1207 | |
1215 | static void | | 1208 | static void |
1216 | usbnet_watchdog(struct ifnet *ifp) | | 1209 | usbnet_watchdog(struct ifnet *ifp) |
1217 | { | | 1210 | { |
1218 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 1211 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
1219 | struct usbnet * const un = ifp->if_softc; | | 1212 | struct usbnet * const un = ifp->if_softc; |
1220 | struct usbnet_private * const unp = un->un_pri; | | 1213 | struct usbnet_private * const unp = un->un_pri; |
1221 | struct usbnet_cdata * const cd = un_cdata(un); | | 1214 | struct usbnet_cdata * const cd = un_cdata(un); |
1222 | usbd_status err; | | 1215 | usbd_status err; |
1223 | | | 1216 | |
1224 | if_statinc(ifp, if_oerrors); | | 1217 | if_statinc(ifp, if_oerrors); |
1225 | device_printf(un->un_dev, "watchdog timeout\n"); | | 1218 | device_printf(un->un_dev, "watchdog timeout\n"); |
1226 | | | 1219 | |
1227 | if (cd->uncd_tx_cnt > 0) { | | 1220 | if (cd->uncd_tx_cnt > 0) { |
1228 | DPRINTF("uncd_tx_cnt=%ju non zero, aborting pipe", 0, 0, 0, 0); | | 1221 | DPRINTF("uncd_tx_cnt=%ju non zero, aborting pipe", 0, 0, 0, 0); |
1229 | err = usbd_abort_pipe(unp->unp_ep[USBNET_ENDPT_TX]); | | 1222 | err = usbd_abort_pipe(unp->unp_ep[USBNET_ENDPT_TX]); |
1230 | if (err) | | 1223 | if (err) |
1231 | device_printf(un->un_dev, "pipe abort failed: %s\n", | | 1224 | device_printf(un->un_dev, "pipe abort failed: %s\n", |
1232 | usbd_errstr(err)); | | 1225 | usbd_errstr(err)); |
1233 | if (cd->uncd_tx_cnt != 0) | | 1226 | if (cd->uncd_tx_cnt != 0) |
1234 | DPRINTF("uncd_tx_cnt now %ju", cd->uncd_tx_cnt, 0, 0, 0); | | 1227 | DPRINTF("uncd_tx_cnt now %ju", cd->uncd_tx_cnt, 0, 0, 0); |
1235 | } | | 1228 | } |
1236 | | | 1229 | |
1237 | if (!IFQ_IS_EMPTY(&ifp->if_snd)) | | 1230 | if (!IFQ_IS_EMPTY(&ifp->if_snd)) |
1238 | (*ifp->if_start)(ifp); | | 1231 | (*ifp->if_start)(ifp); |
1239 | } | | 1232 | } |
1240 | | | 1233 | |
1241 | static void | | 1234 | static void |
1242 | usbnet_tick_task(void *arg) | | 1235 | usbnet_tick_task(void *arg) |
1243 | { | | 1236 | { |
1244 | USBNETHIST_FUNC(); | | 1237 | USBNETHIST_FUNC(); |
1245 | struct usbnet * const un = arg; | | 1238 | struct usbnet * const un = arg; |
1246 | struct usbnet_private * const unp = un->un_pri; | | 1239 | struct usbnet_private * const unp = un->un_pri; |
1247 | struct ifnet * const ifp = usbnet_ifp(un); | | 1240 | struct ifnet * const ifp = usbnet_ifp(un); |
1248 | struct mii_data * const mii = usbnet_mii(un); | | 1241 | struct mii_data * const mii = usbnet_mii(un); |
1249 | | | 1242 | |
1250 | USBNETHIST_CALLARGSN(8, "%jd: enter", unp->unp_number, 0, 0, 0); | | 1243 | USBNETHIST_CALLARGSN(8, "%jd: enter", unp->unp_number, 0, 0, 0); |
1251 | | | 1244 | |
1252 | mutex_enter(&unp->unp_txlock); | | 1245 | mutex_enter(&unp->unp_txlock); |
1253 | const bool timeout = unp->unp_timer != 0 && --unp->unp_timer == 0; | | 1246 | const bool timeout = unp->unp_timer != 0 && --unp->unp_timer == 0; |
1254 | mutex_exit(&unp->unp_txlock); | | 1247 | mutex_exit(&unp->unp_txlock); |
1255 | if (timeout) | | 1248 | if (timeout) |
1256 | usbnet_watchdog(ifp); | | 1249 | usbnet_watchdog(ifp); |
1257 | | | 1250 | |
1258 | DPRINTFN(8, "mii %#jx ifp %#jx", (uintptr_t)mii, (uintptr_t)ifp, 0, 0); | | 1251 | DPRINTFN(8, "mii %#jx ifp %#jx", (uintptr_t)mii, (uintptr_t)ifp, 0, 0); |
1259 | if (mii) { | | 1252 | if (mii) { |
1260 | mutex_enter(&unp->unp_core_lock); | | 1253 | mutex_enter(&unp->unp_core_lock); |
1261 | mii_tick(mii); | | 1254 | mii_tick(mii); |
1262 | if (!unp->unp_link) | | 1255 | if (!unp->unp_link) |
1263 | (*mii->mii_statchg)(ifp); | | 1256 | (*mii->mii_statchg)(ifp); |
1264 | mutex_exit(&unp->unp_core_lock); | | 1257 | mutex_exit(&unp->unp_core_lock); |
1265 | } | | 1258 | } |
1266 | | | 1259 | |
1267 | /* Call driver if requested. */ | | 1260 | /* Call driver if requested. */ |
1268 | uno_tick(un); | | 1261 | uno_tick(un); |
1269 | | | 1262 | |
1270 | mutex_enter(&unp->unp_core_lock); | | 1263 | mutex_enter(&unp->unp_core_lock); |
1271 | if (!unp->unp_stopping && !usbnet_isdying(un)) | | 1264 | if (!unp->unp_stopping && !usbnet_isdying(un)) |
1272 | callout_schedule(&unp->unp_stat_ch, hz); | | 1265 | callout_schedule(&unp->unp_stat_ch, hz); |
1273 | mutex_exit(&unp->unp_core_lock); | | 1266 | mutex_exit(&unp->unp_core_lock); |
1274 | } | | 1267 | } |
1275 | | | 1268 | |
1276 | static int | | 1269 | static int |
1277 | usbnet_if_init(struct ifnet *ifp) | | 1270 | usbnet_if_init(struct ifnet *ifp) |
1278 | { | | 1271 | { |
1279 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 1272 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
1280 | struct usbnet * const un = ifp->if_softc; | | 1273 | struct usbnet * const un = ifp->if_softc; |
1281 | int error; | | 1274 | int error; |
1282 | | | 1275 | |
1283 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); | | 1276 | KASSERTMSG(IFNET_LOCKED(ifp), "%s", ifp->if_xname); |
1284 | | | 1277 | |
1285 | /* | | 1278 | /* |
1286 | * Prevent anyone from bringing the interface back up once | | 1279 | * Prevent anyone from bringing the interface back up once |
1287 | * we're detaching. | | 1280 | * we're detaching. |
1288 | */ | | 1281 | */ |
1289 | if (usbnet_isdying(un)) | | 1282 | if (usbnet_isdying(un)) |
1290 | return EIO; | | 1283 | return EIO; |
1291 | | | 1284 | |
1292 | mutex_enter(&un->un_pri->unp_core_lock); | | 1285 | mutex_enter(&un->un_pri->unp_core_lock); |
1293 | error = uno_init(un, ifp); | | 1286 | error = uno_init(un, ifp); |
1294 | mutex_exit(&un->un_pri->unp_core_lock); | | 1287 | mutex_exit(&un->un_pri->unp_core_lock); |
1295 | | | 1288 | |
1296 | return error; | | 1289 | return error; |
1297 | } | | 1290 | } |
1298 | | | 1291 | |
1299 | | | 1292 | |
1300 | /* Various accessors. */ | | 1293 | /* Various accessors. */ |
1301 | | | 1294 | |
1302 | void | | 1295 | void |
1303 | usbnet_set_link(struct usbnet *un, bool link) | | 1296 | usbnet_set_link(struct usbnet *un, bool link) |
1304 | { | | 1297 | { |
1305 | un->un_pri->unp_link = link; | | 1298 | un->un_pri->unp_link = link; |
1306 | } | | 1299 | } |
1307 | | | 1300 | |
1308 | struct ifnet * | | 1301 | struct ifnet * |
1309 | usbnet_ifp(struct usbnet *un) | | 1302 | usbnet_ifp(struct usbnet *un) |
1310 | { | | 1303 | { |
1311 | return &un->un_pri->unp_ec.ec_if; | | 1304 | return &un->un_pri->unp_ec.ec_if; |
1312 | } | | 1305 | } |
1313 | | | 1306 | |
1314 | struct ethercom * | | 1307 | struct ethercom * |
1315 | usbnet_ec(struct usbnet *un) | | 1308 | usbnet_ec(struct usbnet *un) |
1316 | { | | 1309 | { |
1317 | return &un->un_pri->unp_ec; | | 1310 | return &un->un_pri->unp_ec; |
1318 | } | | 1311 | } |
1319 | | | 1312 | |
1320 | struct mii_data * | | 1313 | struct mii_data * |
1321 | usbnet_mii(struct usbnet *un) | | 1314 | usbnet_mii(struct usbnet *un) |
1322 | { | | 1315 | { |
1323 | return un->un_pri->unp_ec.ec_mii; | | 1316 | return un->un_pri->unp_ec.ec_mii; |
1324 | } | | 1317 | } |
1325 | | | 1318 | |
1326 | krndsource_t * | | 1319 | krndsource_t * |
1327 | usbnet_rndsrc(struct usbnet *un) | | 1320 | usbnet_rndsrc(struct usbnet *un) |
1328 | { | | 1321 | { |
1329 | return &un->un_pri->unp_rndsrc; | | 1322 | return &un->un_pri->unp_rndsrc; |
1330 | } | | 1323 | } |
1331 | | | 1324 | |
1332 | void * | | 1325 | void * |
1333 | usbnet_softc(struct usbnet *un) | | 1326 | usbnet_softc(struct usbnet *un) |
1334 | { | | 1327 | { |
1335 | return un->un_sc; | | 1328 | return un->un_sc; |
1336 | } | | 1329 | } |
1337 | | | 1330 | |
1338 | bool | | 1331 | bool |
1339 | usbnet_havelink(struct usbnet *un) | | 1332 | usbnet_havelink(struct usbnet *un) |
1340 | { | | 1333 | { |
1341 | return un->un_pri->unp_link; | | 1334 | return un->un_pri->unp_link; |
1342 | } | | 1335 | } |
1343 | | | 1336 | |
1344 | bool | | 1337 | bool |
1345 | usbnet_isdying(struct usbnet *un) | | 1338 | usbnet_isdying(struct usbnet *un) |
1346 | { | | 1339 | { |
1347 | return atomic_load_relaxed(&un->un_pri->unp_dying); | | 1340 | return atomic_load_relaxed(&un->un_pri->unp_dying); |
1348 | } | | 1341 | } |
1349 | | | 1342 | |
1350 | | | 1343 | |
1351 | /* Locking. */ | | 1344 | /* Locking. */ |
1352 | | | 1345 | |
1353 | void | | 1346 | void |
1354 | usbnet_lock_core(struct usbnet *un) | | 1347 | usbnet_lock_core(struct usbnet *un) |
1355 | { | | 1348 | { |
1356 | mutex_enter(&un->un_pri->unp_core_lock); | | 1349 | mutex_enter(&un->un_pri->unp_core_lock); |
1357 | } | | 1350 | } |
1358 | | | 1351 | |
1359 | void | | 1352 | void |
1360 | usbnet_unlock_core(struct usbnet *un) | | 1353 | usbnet_unlock_core(struct usbnet *un) |
1361 | { | | 1354 | { |
1362 | mutex_exit(&un->un_pri->unp_core_lock); | | 1355 | mutex_exit(&un->un_pri->unp_core_lock); |
1363 | } | | 1356 | } |
1364 | | | 1357 | |
1365 | kmutex_t * | | 1358 | kmutex_t * |
1366 | usbnet_mutex_core(struct usbnet *un) | | 1359 | usbnet_mutex_core(struct usbnet *un) |
1367 | { | | 1360 | { |
1368 | return &un->un_pri->unp_core_lock; | | 1361 | return &un->un_pri->unp_core_lock; |
1369 | } | | 1362 | } |
1370 | | | 1363 | |
1371 | void | | 1364 | void |
1372 | usbnet_lock_rx(struct usbnet *un) | | 1365 | usbnet_lock_rx(struct usbnet *un) |
1373 | { | | 1366 | { |
1374 | mutex_enter(&un->un_pri->unp_rxlock); | | 1367 | mutex_enter(&un->un_pri->unp_rxlock); |
1375 | } | | 1368 | } |
1376 | | | 1369 | |
1377 | void | | 1370 | void |
1378 | usbnet_unlock_rx(struct usbnet *un) | | 1371 | usbnet_unlock_rx(struct usbnet *un) |
1379 | { | | 1372 | { |
1380 | mutex_exit(&un->un_pri->unp_rxlock); | | 1373 | mutex_exit(&un->un_pri->unp_rxlock); |
1381 | } | | 1374 | } |
1382 | | | 1375 | |
1383 | kmutex_t * | | 1376 | kmutex_t * |
1384 | usbnet_mutex_rx(struct usbnet *un) | | 1377 | usbnet_mutex_rx(struct usbnet *un) |
1385 | { | | 1378 | { |
1386 | return &un->un_pri->unp_rxlock; | | 1379 | return &un->un_pri->unp_rxlock; |
1387 | } | | 1380 | } |
1388 | | | 1381 | |
1389 | void | | 1382 | void |
1390 | usbnet_lock_tx(struct usbnet *un) | | 1383 | usbnet_lock_tx(struct usbnet *un) |
1391 | { | | 1384 | { |
1392 | mutex_enter(&un->un_pri->unp_txlock); | | 1385 | mutex_enter(&un->un_pri->unp_txlock); |
1393 | } | | 1386 | } |
1394 | | | 1387 | |
1395 | void | | 1388 | void |
1396 | usbnet_unlock_tx(struct usbnet *un) | | 1389 | usbnet_unlock_tx(struct usbnet *un) |
1397 | { | | 1390 | { |
1398 | mutex_exit(&un->un_pri->unp_txlock); | | 1391 | mutex_exit(&un->un_pri->unp_txlock); |
1399 | } | | 1392 | } |
1400 | | | 1393 | |
1401 | kmutex_t * | | 1394 | kmutex_t * |
1402 | usbnet_mutex_tx(struct usbnet *un) | | 1395 | usbnet_mutex_tx(struct usbnet *un) |
1403 | { | | 1396 | { |
1404 | return &un->un_pri->unp_txlock; | | 1397 | return &un->un_pri->unp_txlock; |
1405 | } | | 1398 | } |
1406 | | | 1399 | |
1407 | /* Autoconf management. */ | | 1400 | /* Autoconf management. */ |
1408 | | | 1401 | |
1409 | static bool | | 1402 | static bool |
1410 | usbnet_empty_eaddr(struct usbnet * const un) | | 1403 | usbnet_empty_eaddr(struct usbnet * const un) |
1411 | { | | 1404 | { |
1412 | return (un->un_eaddr[0] == 0 && un->un_eaddr[1] == 0 && | | 1405 | return (un->un_eaddr[0] == 0 && un->un_eaddr[1] == 0 && |
1413 | un->un_eaddr[2] == 0 && un->un_eaddr[3] == 0 && | | 1406 | un->un_eaddr[2] == 0 && un->un_eaddr[3] == 0 && |
1414 | un->un_eaddr[4] == 0 && un->un_eaddr[5] == 0); | | 1407 | un->un_eaddr[4] == 0 && un->un_eaddr[5] == 0); |
1415 | } | | 1408 | } |
1416 | | | 1409 | |
1417 | /* | | 1410 | /* |
1418 | * usbnet_attach() and usbnet_attach_ifp() perform setup of the relevant | | 1411 | * usbnet_attach() and usbnet_attach_ifp() perform setup of the relevant |
1419 | * 'usbnet'. The first is enough to enable device access (eg, endpoints | | 1412 | * 'usbnet'. The first is enough to enable device access (eg, endpoints |
1420 | * are connected and commands can be sent), and the second connects the | | 1413 | * are connected and commands can be sent), and the second connects the |
1421 | * device to the system networking. | | 1414 | * device to the system networking. |
1422 | * | | 1415 | * |
1423 | * Always call usbnet_detach(), even if usbnet_attach_ifp() is skippped. | | 1416 | * Always call usbnet_detach(), even if usbnet_attach_ifp() is skippped. |
1424 | * Also usable as driver detach directly. | | 1417 | * Also usable as driver detach directly. |
1425 | * | | 1418 | * |
1426 | * To skip ethernet configuration (eg, point-to-point), make sure that | | 1419 | * To skip ethernet configuration (eg, point-to-point), make sure that |
1427 | * the un_eaddr[] is fully zero. | | 1420 | * the un_eaddr[] is fully zero. |
1428 | */ | | 1421 | */ |
1429 | | | 1422 | |
1430 | void | | 1423 | void |
1431 | usbnet_attach(struct usbnet *un, | | 1424 | usbnet_attach(struct usbnet *un, |
1432 | const char *detname) /* detach cv name */ | | 1425 | const char *detname) /* detach cv name */ |
1433 | { | | 1426 | { |
1434 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 1427 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
1435 | | | 1428 | |
1436 | /* Required inputs. */ | | 1429 | /* Required inputs. */ |
1437 | KASSERT(un->un_ops->uno_tx_prepare); | | 1430 | KASSERT(un->un_ops->uno_tx_prepare); |
1438 | KASSERT(un->un_ops->uno_rx_loop); | | 1431 | KASSERT(un->un_ops->uno_rx_loop); |
1439 | KASSERT(un->un_ops->uno_init); | | 1432 | KASSERT(un->un_ops->uno_init); |
1440 | KASSERT(un->un_rx_bufsz); | | 1433 | KASSERT(un->un_rx_bufsz); |
1441 | KASSERT(un->un_tx_bufsz); | | 1434 | KASSERT(un->un_tx_bufsz); |
1442 | KASSERT(un->un_rx_list_cnt); | | 1435 | KASSERT(un->un_rx_list_cnt); |
1443 | KASSERT(un->un_tx_list_cnt); | | 1436 | KASSERT(un->un_tx_list_cnt); |
1444 | | | 1437 | |
1445 | /* Unfortunate fact. */ | | 1438 | /* Unfortunate fact. */ |
1446 | KASSERT(un == device_private(un->un_dev)); | | 1439 | KASSERT(un == device_private(un->un_dev)); |
1447 | | | 1440 | |
1448 | un->un_pri = kmem_zalloc(sizeof(*un->un_pri), KM_SLEEP); | | 1441 | un->un_pri = kmem_zalloc(sizeof(*un->un_pri), KM_SLEEP); |
1449 | struct usbnet_private * const unp = un->un_pri; | | 1442 | struct usbnet_private * const unp = un->un_pri; |
1450 | | | 1443 | |
1451 | usb_init_task(&unp->unp_mcasttask, usbnet_mcast_task, un, | | 1444 | usb_init_task(&unp->unp_mcasttask, usbnet_mcast_task, un, |
1452 | USB_TASKQ_MPSAFE); | | 1445 | USB_TASKQ_MPSAFE); |
1453 | usb_init_task(&unp->unp_ticktask, usbnet_tick_task, un, | | 1446 | usb_init_task(&unp->unp_ticktask, usbnet_tick_task, un, |
1454 | USB_TASKQ_MPSAFE); | | 1447 | USB_TASKQ_MPSAFE); |
1455 | callout_init(&unp->unp_stat_ch, CALLOUT_MPSAFE); | | 1448 | callout_init(&unp->unp_stat_ch, CALLOUT_MPSAFE); |
1456 | callout_setfunc(&unp->unp_stat_ch, usbnet_tick, un); | | 1449 | callout_setfunc(&unp->unp_stat_ch, usbnet_tick, un); |
1457 | | | 1450 | |
1458 | mutex_init(&unp->unp_txlock, MUTEX_DEFAULT, IPL_SOFTUSB); | | 1451 | mutex_init(&unp->unp_txlock, MUTEX_DEFAULT, IPL_SOFTUSB); |
1459 | mutex_init(&unp->unp_rxlock, MUTEX_DEFAULT, IPL_SOFTUSB); | | 1452 | mutex_init(&unp->unp_rxlock, MUTEX_DEFAULT, IPL_SOFTUSB); |
1460 | mutex_init(&unp->unp_core_lock, MUTEX_DEFAULT, IPL_NONE); | | 1453 | mutex_init(&unp->unp_core_lock, MUTEX_DEFAULT, IPL_NONE); |
1461 | cv_init(&unp->unp_detachcv, detname); | | 1454 | cv_init(&unp->unp_detachcv, detname); |
1462 | | | 1455 | |
1463 | rnd_attach_source(&unp->unp_rndsrc, device_xname(un->un_dev), | | 1456 | rnd_attach_source(&unp->unp_rndsrc, device_xname(un->un_dev), |
1464 | RND_TYPE_NET, RND_FLAG_DEFAULT); | | 1457 | RND_TYPE_NET, RND_FLAG_DEFAULT); |
1465 | | | 1458 | |
1466 | usbnet_rx_list_alloc(un); | | 1459 | usbnet_rx_list_alloc(un); |
1467 | usbnet_tx_list_alloc(un); | | 1460 | usbnet_tx_list_alloc(un); |
1468 | | | 1461 | |
1469 | unp->unp_number = atomic_inc_uint_nv(&usbnet_number); | | 1462 | unp->unp_number = atomic_inc_uint_nv(&usbnet_number); |
1470 | | | 1463 | |
1471 | unp->unp_attached = true; | | 1464 | unp->unp_attached = true; |
1472 | } | | 1465 | } |
1473 | | | 1466 | |
1474 | static void | | 1467 | static void |
1475 | usbnet_attach_mii(struct usbnet *un, const struct usbnet_mii *unm) | | 1468 | usbnet_attach_mii(struct usbnet *un, const struct usbnet_mii *unm) |
1476 | { | | 1469 | { |
1477 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 1470 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
1478 | struct usbnet_private * const unp = un->un_pri; | | 1471 | struct usbnet_private * const unp = un->un_pri; |
1479 | struct mii_data * const mii = &unp->unp_mii; | | 1472 | struct mii_data * const mii = &unp->unp_mii; |
1480 | struct ifnet * const ifp = usbnet_ifp(un); | | 1473 | struct ifnet * const ifp = usbnet_ifp(un); |
1481 | | | 1474 | |
1482 | KASSERT(un->un_ops->uno_read_reg); | | 1475 | KASSERT(un->un_ops->uno_read_reg); |
1483 | KASSERT(un->un_ops->uno_write_reg); | | 1476 | KASSERT(un->un_ops->uno_write_reg); |
1484 | KASSERT(un->un_ops->uno_statchg); | | 1477 | KASSERT(un->un_ops->uno_statchg); |
1485 | | | 1478 | |
1486 | mii->mii_ifp = ifp; | | 1479 | mii->mii_ifp = ifp; |
1487 | mii->mii_readreg = usbnet_mii_readreg; | | 1480 | mii->mii_readreg = usbnet_mii_readreg; |
1488 | mii->mii_writereg = usbnet_mii_writereg; | | 1481 | mii->mii_writereg = usbnet_mii_writereg; |
1489 | mii->mii_statchg = usbnet_mii_statchg; | | 1482 | mii->mii_statchg = usbnet_mii_statchg; |
1490 | mii->mii_flags = MIIF_AUTOTSLEEP; | | 1483 | mii->mii_flags = MIIF_AUTOTSLEEP; |
1491 | | | 1484 | |
1492 | usbnet_ec(un)->ec_mii = mii; | | 1485 | usbnet_ec(un)->ec_mii = mii; |
1493 | ifmedia_init_with_lock(&mii->mii_media, 0, | | 1486 | ifmedia_init_with_lock(&mii->mii_media, 0, |
1494 | usbnet_media_upd, ether_mediastatus, usbnet_mutex_core(un)); | | 1487 | usbnet_media_upd, ether_mediastatus, usbnet_mutex_core(un)); |
1495 | mii_attach(un->un_dev, mii, unm->un_mii_capmask, unm->un_mii_phyloc, | | 1488 | mii_attach(un->un_dev, mii, unm->un_mii_capmask, unm->un_mii_phyloc, |
1496 | unm->un_mii_offset, unm->un_mii_flags); | | 1489 | unm->un_mii_offset, unm->un_mii_flags); |
1497 | | | 1490 | |
1498 | if (LIST_FIRST(&mii->mii_phys) == NULL) { | | 1491 | if (LIST_FIRST(&mii->mii_phys) == NULL) { |
1499 | ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); | | 1492 | ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); |
1500 | ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); | | 1493 | ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); |
1501 | } else | | 1494 | } else |
1502 | ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); | | 1495 | ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); |
1503 | } | | 1496 | } |
1504 | | | 1497 | |
1505 | void | | 1498 | void |
1506 | usbnet_attach_ifp(struct usbnet *un, | | 1499 | usbnet_attach_ifp(struct usbnet *un, |
1507 | unsigned if_flags, /* additional if_flags */ | | 1500 | unsigned if_flags, /* additional if_flags */ |
1508 | unsigned if_extflags, /* additional if_extflags */ | | 1501 | unsigned if_extflags, /* additional if_extflags */ |
1509 | const struct usbnet_mii *unm) /* additional mii_attach flags */ | | 1502 | const struct usbnet_mii *unm) /* additional mii_attach flags */ |
1510 | { | | 1503 | { |
1511 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 1504 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
1512 | struct usbnet_private * const unp = un->un_pri; | | 1505 | struct usbnet_private * const unp = un->un_pri; |
1513 | struct ifnet * const ifp = usbnet_ifp(un); | | 1506 | struct ifnet * const ifp = usbnet_ifp(un); |
1514 | | | 1507 | |
1515 | KASSERT(unp->unp_attached); | | 1508 | KASSERT(unp->unp_attached); |
1516 | KASSERT(!unp->unp_ifp_attached); | | 1509 | KASSERT(!unp->unp_ifp_attached); |
1517 | | | 1510 | |
1518 | ifp->if_softc = un; | | 1511 | ifp->if_softc = un; |
1519 | strlcpy(ifp->if_xname, device_xname(un->un_dev), IFNAMSIZ); | | 1512 | strlcpy(ifp->if_xname, device_xname(un->un_dev), IFNAMSIZ); |
1520 | ifp->if_flags = if_flags; | | 1513 | ifp->if_flags = if_flags; |
1521 | ifp->if_extflags = IFEF_MPSAFE | if_extflags; | | 1514 | ifp->if_extflags = IFEF_MPSAFE | if_extflags; |
1522 | ifp->if_ioctl = usbnet_if_ioctl; | | 1515 | ifp->if_ioctl = usbnet_if_ioctl; |
1523 | ifp->if_start = usbnet_if_start; | | 1516 | ifp->if_start = usbnet_if_start; |
1524 | ifp->if_init = usbnet_if_init; | | 1517 | ifp->if_init = usbnet_if_init; |
1525 | ifp->if_stop = usbnet_if_stop; | | 1518 | ifp->if_stop = usbnet_if_stop; |
1526 | | | 1519 | |
1527 | if (unm) | | 1520 | if (unm) |
1528 | usbnet_attach_mii(un, unm); | | 1521 | usbnet_attach_mii(un, unm); |
1529 | else | | 1522 | else |
1530 | unp->unp_link = true; | | 1523 | unp->unp_link = true; |
1531 | | | 1524 | |
1532 | /* Attach the interface. */ | | 1525 | /* Attach the interface. */ |
1533 | if_initialize(ifp); | | 1526 | if_initialize(ifp); |
1534 | if (ifp->_if_input == NULL) | | 1527 | if (ifp->_if_input == NULL) |
1535 | ifp->if_percpuq = if_percpuq_create(ifp); | | 1528 | ifp->if_percpuq = if_percpuq_create(ifp); |
1536 | if_register(ifp); | | 1529 | if_register(ifp); |
1537 | unp->unp_ifp_attached = true; | | 1530 | unp->unp_ifp_attached = true; |
1538 | | | 1531 | |
1539 | /* | | 1532 | /* |
1540 | * If ethernet address is all zero, skip ether_ifattach() and | | 1533 | * If ethernet address is all zero, skip ether_ifattach() and |
1541 | * instead attach bpf here.. | | 1534 | * instead attach bpf here.. |
1542 | */ | | 1535 | */ |
1543 | if (!usbnet_empty_eaddr(un)) { | | 1536 | if (!usbnet_empty_eaddr(un)) { |
1544 | ether_set_ifflags_cb(&unp->unp_ec, usbnet_ifflags_cb); | | 1537 | ether_set_ifflags_cb(&unp->unp_ec, usbnet_ifflags_cb); |
1545 | aprint_normal_dev(un->un_dev, "Ethernet address %s\n", | | 1538 | aprint_normal_dev(un->un_dev, "Ethernet address %s\n", |
1546 | ether_sprintf(un->un_eaddr)); | | 1539 | ether_sprintf(un->un_eaddr)); |
1547 | ether_ifattach(ifp, un->un_eaddr); | | 1540 | ether_ifattach(ifp, un->un_eaddr); |
1548 | } else { | | 1541 | } else { |
1549 | if_alloc_sadl(ifp); | | 1542 | if_alloc_sadl(ifp); |
1550 | bpf_attach(ifp, DLT_RAW, 0); | | 1543 | bpf_attach(ifp, DLT_RAW, 0); |
1551 | } | | 1544 | } |
1552 | | | 1545 | |
1553 | /* Now ready, and attached. */ | | 1546 | /* Now ready, and attached. */ |
1554 | IFQ_SET_READY(&ifp->if_snd); | | 1547 | IFQ_SET_READY(&ifp->if_snd); |
1555 | | | 1548 | |
1556 | usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, un->un_udev, un->un_dev); | | 1549 | usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, un->un_udev, un->un_dev); |
1557 | | | 1550 | |
1558 | if (!pmf_device_register(un->un_dev, NULL, NULL)) | | 1551 | if (!pmf_device_register(un->un_dev, NULL, NULL)) |
1559 | aprint_error_dev(un->un_dev, "couldn't establish power handler\n"); | | 1552 | aprint_error_dev(un->un_dev, "couldn't establish power handler\n"); |
1560 | } | | 1553 | } |
1561 | | | 1554 | |
1562 | int | | 1555 | int |
1563 | usbnet_detach(device_t self, int flags) | | 1556 | usbnet_detach(device_t self, int flags) |
1564 | { | | 1557 | { |
1565 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 1558 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
1566 | struct usbnet * const un = device_private(self); | | 1559 | struct usbnet * const un = device_private(self); |
1567 | struct usbnet_private * const unp = un->un_pri; | | 1560 | struct usbnet_private * const unp = un->un_pri; |
1568 | | | 1561 | |
1569 | /* Detached before attached finished, so just bail out. */ | | 1562 | /* Detached before attached finished, so just bail out. */ |
1570 | if (unp == NULL || !unp->unp_attached) | | 1563 | if (unp == NULL || !unp->unp_attached) |
1571 | return 0; | | 1564 | return 0; |
1572 | | | 1565 | |
1573 | struct ifnet * const ifp = usbnet_ifp(un); | | 1566 | struct ifnet * const ifp = usbnet_ifp(un); |
1574 | struct mii_data * const mii = usbnet_mii(un); | | 1567 | struct mii_data * const mii = usbnet_mii(un); |
1575 | | | 1568 | |
1576 | /* | | 1569 | /* |
1577 | * Prevent new activity. After we stop the interface, it | | 1570 | * Prevent new activity. After we stop the interface, it |
1578 | * cannot be brought back up. | | 1571 | * cannot be brought back up. |
1579 | */ | | 1572 | */ |
1580 | atomic_store_relaxed(&unp->unp_dying, true); | | 1573 | atomic_store_relaxed(&unp->unp_dying, true); |
1581 | | | 1574 | |
1582 | /* | | 1575 | /* |
1583 | * If we're still running on the network, stop and wait for all | | 1576 | * If we're still running on the network, stop and wait for all |
1584 | * asynchronous activity to finish. | | 1577 | * asynchronous activity to finish. |
1585 | * | | 1578 | * |
1586 | * If usbnet_attach_ifp never ran, IFNET_LOCK won't work, but | | 1579 | * If usbnet_attach_ifp never ran, IFNET_LOCK won't work, but |
1587 | * no activity is possible, so just skip this part. | | 1580 | * no activity is possible, so just skip this part. |
1588 | */ | | 1581 | */ |
1589 | if (unp->unp_ifp_attached) { | | 1582 | if (unp->unp_ifp_attached) { |
1590 | IFNET_LOCK(ifp); | | 1583 | IFNET_LOCK(ifp); |
1591 | if (ifp->if_flags & IFF_RUNNING) { | | 1584 | if (ifp->if_flags & IFF_RUNNING) { |
1592 | usbnet_if_stop(ifp, 1); | | 1585 | usbnet_if_stop(ifp, 1); |
1593 | } | | 1586 | } |
1594 | IFNET_UNLOCK(ifp); | | 1587 | IFNET_UNLOCK(ifp); |
1595 | } | | 1588 | } |
1596 | | | 1589 | |
1597 | /* | | 1590 | /* |
1598 | * The callout and tick task can't be scheduled anew at this | | 1591 | * The callout and tick task can't be scheduled anew at this |
1599 | * point, and usbnet_if_stop has waited for them to complete. | | 1592 | * point, and usbnet_if_stop has waited for them to complete. |
1600 | */ | | 1593 | */ |
1601 | KASSERT(!callout_pending(&unp->unp_stat_ch)); | | 1594 | KASSERT(!callout_pending(&unp->unp_stat_ch)); |
1602 | KASSERT(!usb_task_pending(un->un_udev, &unp->unp_ticktask)); | | 1595 | KASSERT(!usb_task_pending(un->un_udev, &unp->unp_ticktask)); |
1603 | | | 1596 | |
1604 | usb_rem_task_wait(un->un_udev, &unp->unp_mcasttask, USB_TASKQ_DRIVER, | | 1597 | usb_rem_task_wait(un->un_udev, &unp->unp_mcasttask, USB_TASKQ_DRIVER, |
1605 | NULL); | | 1598 | NULL); |
1606 | | | 1599 | |
1607 | if (mii) { | | 1600 | if (mii) { |
1608 | mii_detach(mii, MII_PHY_ANY, MII_OFFSET_ANY); | | 1601 | mii_detach(mii, MII_PHY_ANY, MII_OFFSET_ANY); |
1609 | ifmedia_fini(&mii->mii_media); | | 1602 | ifmedia_fini(&mii->mii_media); |
1610 | } | | 1603 | } |
1611 | if (unp->unp_ifp_attached) { | | 1604 | if (unp->unp_ifp_attached) { |
1612 | if (!usbnet_empty_eaddr(un)) | | 1605 | if (!usbnet_empty_eaddr(un)) |
1613 | ether_ifdetach(ifp); | | 1606 | ether_ifdetach(ifp); |
1614 | else | | 1607 | else |
1615 | bpf_detach(ifp); | | 1608 | bpf_detach(ifp); |
1616 | if_detach(ifp); | | 1609 | if_detach(ifp); |
1617 | } | | 1610 | } |
1618 | usbnet_ec(un)->ec_mii = NULL; | | 1611 | usbnet_ec(un)->ec_mii = NULL; |
1619 | | | 1612 | |
1620 | /* | | 1613 | /* |
1621 | * We have already waited for the multicast task to complete. | | 1614 | * We have already waited for the multicast task to complete. |
1622 | * Unfortunately, until if_detach, nothing has prevented it | | 1615 | * Unfortunately, until if_detach, nothing has prevented it |
1623 | * from running again -- another thread might issue if_mcast_op | | 1616 | * from running again -- another thread might issue if_mcast_op |
1624 | * between the time of our first usb_rem_task_wait and the time | | 1617 | * between the time of our first usb_rem_task_wait and the time |
1625 | * we actually get around to if_detach. | | 1618 | * we actually get around to if_detach. |
1626 | * | | 1619 | * |
1627 | * Fortunately, the first usb_rem_task_wait ensures that if the | | 1620 | * Fortunately, the first usb_rem_task_wait ensures that if the |
1628 | * task is scheduled again, it will witness our setting of | | 1621 | * task is scheduled again, it will witness our setting of |
1629 | * unp_dying to true[*]. So after that point, if the task is | | 1622 | * unp_dying to true[*]. So after that point, if the task is |
1630 | * scheduled again, it will decline to touch IFNET_LOCK and do | | 1623 | * scheduled again, it will decline to touch IFNET_LOCK and do |
1631 | * nothing. But we still need to wait for it to complete. | | 1624 | * nothing. But we still need to wait for it to complete. |
1632 | * | | 1625 | * |
1633 | * It would be nice if we could write | | 1626 | * It would be nice if we could write |
1634 | * | | 1627 | * |
1635 | * if_pleasestopissuingmcastopsthanks(ifp); | | 1628 | * if_pleasestopissuingmcastopsthanks(ifp); |
1636 | * usb_rem_task_wait(..., &unp->unp_mcasttask, ...); | | 1629 | * usb_rem_task_wait(..., &unp->unp_mcasttask, ...); |
1637 | * if_detach(ifp); | | 1630 | * if_detach(ifp); |
1638 | * | | 1631 | * |
1639 | * and then we would need only one usb_rem_task_wait. | | 1632 | * and then we would need only one usb_rem_task_wait. |
1640 | * | | 1633 | * |
1641 | * Unfortunately, there is no such operation available in | | 1634 | * Unfortunately, there is no such operation available in |
1642 | * sys/net at the moment, and it would require a bit of | | 1635 | * sys/net at the moment, and it would require a bit of |
1643 | * coordination with if_mcast_op and doifioctl probably under a | | 1636 | * coordination with if_mcast_op and doifioctl probably under a |
1644 | * new lock. So we'll use this kludge until that mechanism is | | 1637 | * new lock. So we'll use this kludge until that mechanism is |
1645 | * invented. | | 1638 | * invented. |
1646 | * | | 1639 | * |
1647 | * [*] This is not exactly a documented property of the API, | | 1640 | * [*] This is not exactly a documented property of the API, |
1648 | * but it is implied by the single lock in the task queue | | 1641 | * but it is implied by the single lock in the task queue |
1649 | * serializing changes to the task state. | | 1642 | * serializing changes to the task state. |
1650 | */ | | 1643 | */ |
1651 | usb_rem_task_wait(un->un_udev, &unp->unp_mcasttask, USB_TASKQ_DRIVER, | | 1644 | usb_rem_task_wait(un->un_udev, &unp->unp_mcasttask, USB_TASKQ_DRIVER, |
1652 | NULL); | | 1645 | NULL); |
1653 | | | 1646 | |
1654 | mutex_enter(&unp->unp_core_lock); | | 1647 | mutex_enter(&unp->unp_core_lock); |
1655 | unp->unp_refcnt--; | | 1648 | unp->unp_refcnt--; |
1656 | if (unp->unp_refcnt >= 0) { | | 1649 | if (unp->unp_refcnt >= 0) { |
1657 | aprint_error_dev(un->un_dev, "%d stragglers\n", | | 1650 | aprint_error_dev(un->un_dev, "%d stragglers\n", |
1658 | unp->unp_refcnt + 1); | | 1651 | unp->unp_refcnt + 1); |
1659 | } | | 1652 | } |
1660 | while (unp->unp_refcnt >= 0) { | | 1653 | while (unp->unp_refcnt >= 0) { |
1661 | /* Wait for processes to go away */ | | 1654 | /* Wait for processes to go away */ |
1662 | cv_wait(&unp->unp_detachcv, &unp->unp_core_lock); | | 1655 | cv_wait(&unp->unp_detachcv, &unp->unp_core_lock); |
1663 | } | | 1656 | } |
1664 | mutex_exit(&unp->unp_core_lock); | | 1657 | mutex_exit(&unp->unp_core_lock); |
1665 | | | 1658 | |
1666 | usbnet_rx_list_free(un); | | 1659 | usbnet_rx_list_free(un); |
1667 | usbnet_tx_list_free(un); | | 1660 | usbnet_tx_list_free(un); |
1668 | | | 1661 | |
1669 | rnd_detach_source(&unp->unp_rndsrc); | | 1662 | rnd_detach_source(&unp->unp_rndsrc); |
1670 | | | 1663 | |
1671 | cv_destroy(&unp->unp_detachcv); | | 1664 | cv_destroy(&unp->unp_detachcv); |
1672 | mutex_destroy(&unp->unp_core_lock); | | 1665 | mutex_destroy(&unp->unp_core_lock); |
1673 | mutex_destroy(&unp->unp_rxlock); | | 1666 | mutex_destroy(&unp->unp_rxlock); |
1674 | mutex_destroy(&unp->unp_txlock); | | 1667 | mutex_destroy(&unp->unp_txlock); |
1675 | | | 1668 | |
1676 | callout_destroy(&unp->unp_stat_ch); | | 1669 | callout_destroy(&unp->unp_stat_ch); |
1677 | | | 1670 | |
1678 | pmf_device_deregister(un->un_dev); | | 1671 | pmf_device_deregister(un->un_dev); |
1679 | | | 1672 | |
1680 | /* | | 1673 | /* |
1681 | * Notify userland that we're going away, if we arrived in the | | 1674 | * Notify userland that we're going away, if we arrived in the |
1682 | * first place. | | 1675 | * first place. |
1683 | */ | | 1676 | */ |
1684 | if (unp->unp_ifp_attached) { | | 1677 | if (unp->unp_ifp_attached) { |
1685 | usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, un->un_udev, | | 1678 | usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, un->un_udev, |
1686 | un->un_dev); | | 1679 | un->un_dev); |
1687 | } | | 1680 | } |
1688 | | | 1681 | |
1689 | kmem_free(unp, sizeof(*unp)); | | 1682 | kmem_free(unp, sizeof(*unp)); |
1690 | un->un_pri = NULL; | | 1683 | un->un_pri = NULL; |
1691 | | | 1684 | |
1692 | return 0; | | 1685 | return 0; |
1693 | } | | 1686 | } |
1694 | | | 1687 | |
1695 | int | | 1688 | int |
1696 | usbnet_activate(device_t self, devact_t act) | | 1689 | usbnet_activate(device_t self, devact_t act) |
1697 | { | | 1690 | { |
1698 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); | | 1691 | USBNETHIST_FUNC(); USBNETHIST_CALLED(); |
1699 | struct usbnet * const un = device_private(self); | | 1692 | struct usbnet * const un = device_private(self); |
1700 | struct usbnet_private * const unp = un->un_pri; | | 1693 | struct usbnet_private * const unp = un->un_pri; |
1701 | struct ifnet * const ifp = usbnet_ifp(un); | | 1694 | struct ifnet * const ifp = usbnet_ifp(un); |
1702 | | | 1695 | |
1703 | switch (act) { | | 1696 | switch (act) { |
1704 | case DVACT_DEACTIVATE: | | 1697 | case DVACT_DEACTIVATE: |
1705 | if_deactivate(ifp); | | 1698 | if_deactivate(ifp); |
1706 | | | 1699 | |
1707 | atomic_store_relaxed(&unp->unp_dying, true); | | 1700 | atomic_store_relaxed(&unp->unp_dying, true); |
1708 | | | 1701 | |
1709 | mutex_enter(&unp->unp_rxlock); | | 1702 | mutex_enter(&unp->unp_rxlock); |
1710 | mutex_enter(&unp->unp_txlock); | | 1703 | mutex_enter(&unp->unp_txlock); |
1711 | unp->unp_stopping = true; | | 1704 | unp->unp_stopping = true; |
1712 | mutex_exit(&unp->unp_txlock); | | 1705 | mutex_exit(&unp->unp_txlock); |
1713 | mutex_exit(&unp->unp_rxlock); | | 1706 | mutex_exit(&unp->unp_rxlock); |
1714 | | | 1707 | |
1715 | return 0; | | 1708 | return 0; |
1716 | default: | | 1709 | default: |
1717 | return EOPNOTSUPP; | | 1710 | return EOPNOTSUPP; |
1718 | } | | 1711 | } |
1719 | } | | 1712 | } |
1720 | | | 1713 | |
1721 | MODULE(MODULE_CLASS_MISC, usbnet, NULL); | | 1714 | MODULE(MODULE_CLASS_MISC, usbnet, NULL); |
1722 | | | 1715 | |
1723 | static int | | 1716 | static int |
1724 | usbnet_modcmd(modcmd_t cmd, void *arg) | | 1717 | usbnet_modcmd(modcmd_t cmd, void *arg) |
1725 | { | | 1718 | { |
1726 | switch (cmd) { | | 1719 | switch (cmd) { |
1727 | case MODULE_CMD_INIT: | | 1720 | case MODULE_CMD_INIT: |
1728 | return 0; | | 1721 | return 0; |
1729 | case MODULE_CMD_FINI: | | 1722 | case MODULE_CMD_FINI: |
1730 | return 0; | | 1723 | return 0; |
1731 | case MODULE_CMD_STAT: | | 1724 | case MODULE_CMD_STAT: |
1732 | case MODULE_CMD_AUTOUNLOAD: | | 1725 | case MODULE_CMD_AUTOUNLOAD: |
1733 | default: | | 1726 | default: |
1734 | return ENOTTY; | | 1727 | return ENOTTY; |
1735 | } | | 1728 | } |
1736 | } | | 1729 | } |