Lines Matching +full:network +full:- +full:oriented
1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2017 - 2019 Cambridge Greys Limited
4 * Copyright (C) 2011 - 2014 Cisco Systems Inc
5 * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
37 * Adapted from network devices with the following major changes:
38 * All transports are static - simplifies the code significantly
42 * Configuration is no longer positional - L2TPv3 and GRE require up to
48 #define DRIVER_NAME "uml-vector"
112 spin_lock(&vp->rx_queue->head_lock); in vector_reset_stats()
113 vp->estats.rx_queue_max = 0; in vector_reset_stats()
114 vp->estats.rx_queue_running_average = 0; in vector_reset_stats()
115 vp->estats.rx_encaps_errors = 0; in vector_reset_stats()
116 vp->estats.sg_ok = 0; in vector_reset_stats()
117 vp->estats.sg_linearized = 0; in vector_reset_stats()
118 spin_unlock(&vp->rx_queue->head_lock); in vector_reset_stats()
124 spin_lock(&vp->tx_queue->head_lock); in vector_reset_stats()
125 vp->estats.tx_timeout_count = 0; in vector_reset_stats()
126 vp->estats.tx_restart_queue = 0; in vector_reset_stats()
127 vp->estats.tx_kicks = 0; in vector_reset_stats()
128 vp->estats.tx_flow_control_xon = 0; in vector_reset_stats()
129 vp->estats.tx_flow_control_xoff = 0; in vector_reset_stats()
130 vp->estats.tx_queue_max = 0; in vector_reset_stats()
131 vp->estats.tx_queue_running_average = 0; in vector_reset_stats()
132 spin_unlock(&vp->tx_queue->head_lock); in vector_reset_stats()
142 if ((result < (1 << 16) - 1) && (result >= 576)) in get_mtu()
216 return -EINVAL; in get_transport_options()
240 /* A mini-buffer for packet drop read
241 * All of our supported transports are datagram oriented and we always
254 * maximum enqueue/dequeue-at-once capacity if possible. Called by
260 qi->head = in vector_advancehead()
261 (qi->head + advance) in vector_advancehead()
262 % qi->max_depth; in vector_advancehead()
265 atomic_sub(advance, &qi->queue_depth); in vector_advancehead()
266 return atomic_read(&qi->queue_depth); in vector_advancehead()
276 qi->tail = in vector_advancetail()
277 (qi->tail + advance) in vector_advancetail()
278 % qi->max_depth; in vector_advancetail()
279 atomic_add(advance, &qi->queue_depth); in vector_advancetail()
280 return atomic_read(&qi->queue_depth); in vector_advancetail()
291 nr_frags = skb_shinfo(skb)->nr_frags; in prep_msg()
296 if (vp->header_size > 0) { in prep_msg()
297 iov[iov_index].iov_len = vp->header_size; in prep_msg()
298 vp->form_header(iov[iov_index].iov_base, skb, vp); in prep_msg()
301 iov[iov_index].iov_base = skb->data; in prep_msg()
303 iov[iov_index].iov_len = skb->len - skb->data_len; in prep_msg()
304 vp->estats.sg_ok++; in prep_msg()
306 iov[iov_index].iov_len = skb->len; in prep_msg()
309 skb_frag = &skb_shinfo(skb)->frags[frag]; in prep_msg()
316 return -1; in prep_msg()
326 struct vector_private *vp = netdev_priv(qi->dev); in vector_enqueue()
329 struct mmsghdr *mmsg_vector = qi->mmsg_vector; in vector_enqueue()
332 spin_lock(&qi->tail_lock); in vector_enqueue()
333 queue_depth = atomic_read(&qi->queue_depth); in vector_enqueue()
336 packet_len = skb->len; in vector_enqueue()
338 if (queue_depth < qi->max_depth) { in vector_enqueue()
340 *(qi->skbuff_vector + qi->tail) = skb; in vector_enqueue()
341 mmsg_vector += qi->tail; in vector_enqueue()
345 mmsg_vector->msg_hdr.msg_iov in vector_enqueue()
349 mmsg_vector->msg_hdr.msg_iovlen = iov_count; in vector_enqueue()
350 mmsg_vector->msg_hdr.msg_name = vp->fds->remote_addr; in vector_enqueue()
351 mmsg_vector->msg_hdr.msg_namelen = vp->fds->remote_addr_size; in vector_enqueue()
356 spin_unlock(&qi->tail_lock); in vector_enqueue()
359 qi->dev->stats.tx_dropped++; in vector_enqueue()
361 packet_len = skb->len; in vector_enqueue()
363 netdev_completed_queue(qi->dev, 1, packet_len); in vector_enqueue()
365 spin_unlock(&qi->tail_lock); in vector_enqueue()
375 for (skb_index = qi->head; skb_index < qi->head + count; skb_index++) { in consume_vector_skbs()
376 skb = *(qi->skbuff_vector + skb_index); in consume_vector_skbs()
380 bytes_compl += skb->len; in consume_vector_skbs()
381 *(qi->skbuff_vector + skb_index) = NULL; in consume_vector_skbs()
384 qi->dev->stats.tx_bytes += bytes_compl; in consume_vector_skbs()
385 qi->dev->stats.tx_packets += count; in consume_vector_skbs()
386 netdev_completed_queue(qi->dev, count, bytes_compl); in consume_vector_skbs()
399 struct vector_private *vp = netdev_priv(qi->dev); in vector_send()
403 if (spin_trylock(&qi->head_lock)) { in vector_send()
405 while (atomic_read(&qi->queue_depth) > 0) { in vector_send()
407 send_len = atomic_read(&qi->queue_depth); in vector_send()
408 send_from = qi->mmsg_vector; in vector_send()
409 send_from += qi->head; in vector_send()
411 if (send_len + qi->head > qi->max_depth) in vector_send()
412 send_len = qi->max_depth - qi->head; in vector_send()
416 vp->fds->tx_fd, in vector_send()
421 vp->in_write_poll = in vector_send()
427 * them all TX-ed and blame the network. in vector_send()
431 netdev_err(vp->dev, "sendmmsg err=%i\n", in vector_send()
433 vp->in_error = true; in vector_send()
442 if (result > vp->estats.tx_queue_max) in vector_send()
443 vp->estats.tx_queue_max = result; in vector_send()
444 vp->estats.tx_queue_running_average = in vector_send()
445 (vp->estats.tx_queue_running_average + result) >> 1; in vector_send()
447 netif_wake_queue(qi->dev); in vector_send()
452 vp->estats.tx_restart_queue++; in vector_send()
456 spin_unlock(&qi->head_lock); in vector_send()
458 return atomic_read(&qi->queue_depth); in vector_send()
469 struct vector_private *vp = netdev_priv(qi->dev); in destroy_queue()
474 /* deallocate any skbuffs - we rely on any unused to be in destroy_queue()
477 if (qi->skbuff_vector != NULL) { in destroy_queue()
478 for (i = 0; i < qi->max_depth; i++) { in destroy_queue()
479 if (*(qi->skbuff_vector + i) != NULL) in destroy_queue()
480 dev_kfree_skb_any(*(qi->skbuff_vector + i)); in destroy_queue()
482 kfree(qi->skbuff_vector); in destroy_queue()
485 if (qi->mmsg_vector != NULL) { in destroy_queue()
486 mmsg_vector = qi->mmsg_vector; in destroy_queue()
487 for (i = 0; i < qi->max_depth; i++) { in destroy_queue()
488 iov = mmsg_vector->msg_hdr.msg_iov; in destroy_queue()
490 if ((vp->header_size > 0) && in destroy_queue()
491 (iov->iov_base != NULL)) in destroy_queue()
492 kfree(iov->iov_base); in destroy_queue()
497 kfree(qi->mmsg_vector); in destroy_queue()
519 result->max_depth = max_size; in create_queue()
520 result->dev = vp->dev; in create_queue()
521 result->mmsg_vector = kmalloc( in create_queue()
523 if (result->mmsg_vector == NULL) in create_queue()
525 result->skbuff_vector = kmalloc( in create_queue()
527 if (result->skbuff_vector == NULL) in create_queue()
532 mmsg_vector = result->mmsg_vector; in create_queue()
534 /* Clear all pointers - we use non-NULL as marking on in create_queue()
537 *(result->skbuff_vector + i) = NULL; in create_queue()
538 mmsg_vector->msg_hdr.msg_iov = NULL; in create_queue()
541 mmsg_vector = result->mmsg_vector; in create_queue()
542 result->max_iov_frags = num_extra_frags; in create_queue()
544 if (vp->header_size > 0) in create_queue()
556 mmsg_vector->msg_hdr.msg_iov = iov; in create_queue()
557 mmsg_vector->msg_hdr.msg_iovlen = 1; in create_queue()
558 mmsg_vector->msg_hdr.msg_control = NULL; in create_queue()
559 mmsg_vector->msg_hdr.msg_controllen = 0; in create_queue()
560 mmsg_vector->msg_hdr.msg_flags = MSG_DONTWAIT; in create_queue()
561 mmsg_vector->msg_hdr.msg_name = NULL; in create_queue()
562 mmsg_vector->msg_hdr.msg_namelen = 0; in create_queue()
563 if (vp->header_size > 0) { in create_queue()
564 iov->iov_base = kmalloc(header_size, GFP_KERNEL); in create_queue()
565 if (iov->iov_base == NULL) in create_queue()
567 iov->iov_len = header_size; in create_queue()
568 mmsg_vector->msg_hdr.msg_iovlen = 2; in create_queue()
571 iov->iov_base = NULL; in create_queue()
572 iov->iov_len = 0; in create_queue()
575 spin_lock_init(&result->head_lock); in create_queue()
576 spin_lock_init(&result->tail_lock); in create_queue()
577 atomic_set(&result->queue_depth, 0); in create_queue()
578 result->head = 0; in create_queue()
579 result->tail = 0; in create_queue()
582 kfree(result->mmsg_vector); in create_queue()
594 * happens in-line. While we can try using the return code of
604 int linear = vp->max_packet + vp->headroom + SAFETY_MARGIN; in prep_skb()
607 struct iovec *iov = msg->msg_iov; in prep_skb()
611 if (vp->req_size <= linear) in prep_skb()
614 len = vp->req_size; in prep_skb()
617 len - vp->max_packet, in prep_skb()
622 if (vp->header_size > 0) in prep_skb()
629 skb_reserve(result, vp->headroom); in prep_skb()
630 result->dev = vp->dev; in prep_skb()
631 skb_put(result, vp->max_packet); in prep_skb()
632 result->data_len = len - vp->max_packet; in prep_skb()
633 result->len += len - vp->max_packet; in prep_skb()
635 result->ip_summed = CHECKSUM_NONE; in prep_skb()
636 iov[iov_index].iov_base = result->data; in prep_skb()
637 iov[iov_index].iov_len = vp->max_packet; in prep_skb()
640 nr_frags = skb_shinfo(result)->nr_frags; in prep_skb()
642 skb_frag = &skb_shinfo(result)->frags[frag]; in prep_skb()
651 msg->msg_iovlen = iov_index; in prep_skb()
656 /* Prepare queue for recvmmsg one-shot rx - fill with fresh sk_buffs */
660 struct vector_private *vp = netdev_priv(qi->dev); in prep_queue_for_rx()
661 struct mmsghdr *mmsg_vector = qi->mmsg_vector; in prep_queue_for_rx()
662 void **skbuff_vector = qi->skbuff_vector; in prep_queue_for_rx()
665 queue_depth = atomic_read(&qi->queue_depth); in prep_queue_for_rx()
674 qi->head = qi->tail = 0; in prep_queue_for_rx()
677 /* it is OK if allocation fails - recvmmsg with NULL data in in prep_queue_for_rx()
682 *skbuff_vector = prep_skb(vp, &mmsg_vector->msg_hdr); in prep_queue_for_rx()
686 atomic_set(&qi->queue_depth, 0); in prep_queue_for_rx()
697 if (device->unit == n) in find_device()
716 return -EINVAL; in vector_parse()
729 return -EINVAL; in vector_parse()
755 return -ENOMEM; in vector_config()
763 return -EINVAL; in vector_config()
777 return -1; in vector_id()
793 return -ENODEV; in vector_remove()
794 dev = vec_d->dev; in vector_remove()
796 if (vp->fds != NULL) in vector_remove()
797 return -EBUSY; in vector_remove()
799 platform_device_unregister(&vec_d->pdev); in vector_remove()
804 * There is no shared per-transport initialization code, so
820 struct net_device *netdev = device->dev; in vector_device_release()
822 list_del(&device->list); in vector_device_release()
827 /* Bog standard recv using recvmsg - not used normally unless the user
847 if (vp->header_size > 0) { in vector_legacy_rx()
848 iov[0].iov_base = vp->header_rxbuffer; in vector_legacy_rx()
849 iov[0].iov_len = vp->header_size; in vector_legacy_rx()
861 vp->dev->stats.rx_dropped++; in vector_legacy_rx()
864 pkt_len = uml_vector_recvmsg(vp->fds->rx_fd, &hdr, 0); in vector_legacy_rx()
866 vp->in_error = true; in vector_legacy_rx()
871 if (pkt_len > vp->header_size) { in vector_legacy_rx()
872 if (vp->header_size > 0) { in vector_legacy_rx()
873 header_check = vp->verify_header( in vector_legacy_rx()
874 vp->header_rxbuffer, skb, vp); in vector_legacy_rx()
877 vp->dev->stats.rx_dropped++; in vector_legacy_rx()
878 vp->estats.rx_encaps_errors++; in vector_legacy_rx()
882 vp->estats.rx_csum_offload_good++; in vector_legacy_rx()
883 skb->ip_summed = CHECKSUM_UNNECESSARY; in vector_legacy_rx()
886 pskb_trim(skb, pkt_len - vp->rx_header_size); in vector_legacy_rx()
887 skb->protocol = eth_type_trans(skb, skb->dev); in vector_legacy_rx()
888 vp->dev->stats.rx_bytes += skb->len; in vector_legacy_rx()
889 vp->dev->stats.rx_packets++; in vector_legacy_rx()
890 napi_gro_receive(&vp->napi, skb); in vector_legacy_rx()
910 iov[0].iov_base = vp->header_txbuffer; in writev_tx()
917 vp->fds->tx_fd, in writev_tx()
925 netif_trans_update(vp->dev); in writev_tx()
926 netif_wake_queue(vp->dev); in writev_tx()
929 vp->dev->stats.tx_bytes += skb->len; in writev_tx()
930 vp->dev->stats.tx_packets++; in writev_tx()
932 vp->dev->stats.tx_dropped++; in writev_tx()
937 vp->dev->stats.tx_dropped++; in writev_tx()
940 vp->in_error = true; in writev_tx()
952 struct vector_queue *qi = vp->rx_queue; in vector_mmsg_rx()
954 struct mmsghdr *mmsg_vector = qi->mmsg_vector; in vector_mmsg_rx()
955 void **skbuff_vector = qi->skbuff_vector; in vector_mmsg_rx()
964 /* Fire the Lazy Gun - get as many packets as we can in one go. */ in vector_mmsg_rx()
966 if (budget > qi->max_depth) in vector_mmsg_rx()
967 budget = qi->max_depth; in vector_mmsg_rx()
970 vp->fds->rx_fd, qi->mmsg_vector, budget, 0); in vector_mmsg_rx()
973 vp->in_error = true; in vector_mmsg_rx()
983 atomic_add(packet_count, &qi->queue_depth); in vector_mmsg_rx()
987 if (mmsg_vector->msg_len > vp->header_size) { in vector_mmsg_rx()
988 if (vp->header_size > 0) { in vector_mmsg_rx()
989 header_check = vp->verify_header( in vector_mmsg_rx()
990 mmsg_vector->msg_hdr.msg_iov->iov_base, in vector_mmsg_rx()
995 /* Overlay header failed to verify - discard. in vector_mmsg_rx()
1001 vp->estats.rx_encaps_errors++; in vector_mmsg_rx()
1005 vp->estats.rx_csum_offload_good++; in vector_mmsg_rx()
1006 skb->ip_summed = CHECKSUM_UNNECESSARY; in vector_mmsg_rx()
1010 mmsg_vector->msg_len - vp->rx_header_size); in vector_mmsg_rx()
1011 skb->protocol = eth_type_trans(skb, skb->dev); in vector_mmsg_rx()
1014 * The interrupt loop is non-reentrant. in vector_mmsg_rx()
1016 vp->dev->stats.rx_bytes += skb->len; in vector_mmsg_rx()
1017 vp->dev->stats.rx_packets++; in vector_mmsg_rx()
1018 napi_gro_receive(&vp->napi, skb); in vector_mmsg_rx()
1020 /* Overlay header too short to do anything - discard. in vector_mmsg_rx()
1033 if (vp->estats.rx_queue_max < packet_count) in vector_mmsg_rx()
1034 vp->estats.rx_queue_max = packet_count; in vector_mmsg_rx()
1035 vp->estats.rx_queue_running_average = in vector_mmsg_rx()
1036 (vp->estats.rx_queue_running_average + packet_count) >> 1; in vector_mmsg_rx()
1046 if (vp->in_error) { in vector_net_start_xmit()
1047 deactivate_fd(vp->fds->rx_fd, vp->rx_irq); in vector_net_start_xmit()
1048 if ((vp->fds->rx_fd != vp->fds->tx_fd) && (vp->tx_irq != 0)) in vector_net_start_xmit()
1049 deactivate_fd(vp->fds->tx_fd, vp->tx_irq); in vector_net_start_xmit()
1053 if ((vp->options & VECTOR_TX) == 0) { in vector_net_start_xmit()
1062 netdev_sent_queue(vp->dev, skb->len); in vector_net_start_xmit()
1063 queue_depth = vector_enqueue(vp->tx_queue, skb); in vector_net_start_xmit()
1065 if (queue_depth < vp->tx_queue->max_depth && netdev_xmit_more()) { in vector_net_start_xmit()
1066 mod_timer(&vp->tl, vp->coalesce); in vector_net_start_xmit()
1069 queue_depth = vector_send(vp->tx_queue); in vector_net_start_xmit()
1071 napi_schedule(&vp->napi); in vector_net_start_xmit()
1084 napi_schedule(&vp->napi); in vector_rx_interrupt()
1097 * -EAGAIN or -ENOBUFFS from sendmmsg. Otherwise in vector_tx_interrupt()
1103 napi_schedule(&vp->napi); in vector_tx_interrupt()
1115 del_timer(&vp->tl); in vector_net_close()
1117 vp->opened = false; in vector_net_close()
1119 if (vp->fds == NULL) in vector_net_close()
1123 if (vp->rx_irq > 0) { in vector_net_close()
1124 um_free_irq(vp->rx_irq, dev); in vector_net_close()
1125 vp->rx_irq = 0; in vector_net_close()
1127 if (vp->tx_irq > 0) { in vector_net_close()
1128 um_free_irq(vp->tx_irq, dev); in vector_net_close()
1129 vp->tx_irq = 0; in vector_net_close()
1131 napi_disable(&vp->napi); in vector_net_close()
1132 netif_napi_del(&vp->napi); in vector_net_close()
1133 if (vp->fds->rx_fd > 0) { in vector_net_close()
1134 if (vp->bpf) in vector_net_close()
1135 uml_vector_detach_bpf(vp->fds->rx_fd, vp->bpf); in vector_net_close()
1136 os_close_file(vp->fds->rx_fd); in vector_net_close()
1137 vp->fds->rx_fd = -1; in vector_net_close()
1139 if (vp->fds->tx_fd > 0) { in vector_net_close()
1140 os_close_file(vp->fds->tx_fd); in vector_net_close()
1141 vp->fds->tx_fd = -1; in vector_net_close()
1143 if (vp->bpf != NULL) in vector_net_close()
1144 kfree(vp->bpf->filter); in vector_net_close()
1145 kfree(vp->bpf); in vector_net_close()
1146 vp->bpf = NULL; in vector_net_close()
1147 kfree(vp->fds->remote_addr); in vector_net_close()
1148 kfree(vp->transport_data); in vector_net_close()
1149 kfree(vp->header_rxbuffer); in vector_net_close()
1150 kfree(vp->header_txbuffer); in vector_net_close()
1151 if (vp->rx_queue != NULL) in vector_net_close()
1152 destroy_queue(vp->rx_queue); in vector_net_close()
1153 if (vp->tx_queue != NULL) in vector_net_close()
1154 destroy_queue(vp->tx_queue); in vector_net_close()
1155 kfree(vp->fds); in vector_net_close()
1156 vp->fds = NULL; in vector_net_close()
1157 vp->in_error = false; in vector_net_close()
1168 if ((vp->options & VECTOR_TX) != 0) in vector_poll()
1169 tx_enqueued = (vector_send(vp->tx_queue) > 0); in vector_poll()
1170 spin_lock(&vp->rx_queue->head_lock); in vector_poll()
1171 if ((vp->options & VECTOR_RX) > 0) in vector_poll()
1178 spin_unlock(&vp->rx_queue->head_lock); in vector_poll()
1193 netdev_reset_queue(vp->dev); in vector_reset_tx()
1194 netif_start_queue(vp->dev); in vector_reset_tx()
1195 netif_wake_queue(vp->dev); in vector_reset_tx()
1201 int err = -EINVAL; in vector_net_open()
1204 if (vp->opened) in vector_net_open()
1205 return -ENXIO; in vector_net_open()
1206 vp->opened = true; in vector_net_open()
1208 vp->bpf = uml_vector_user_bpf(get_bpf_file(vp->parsed)); in vector_net_open()
1210 vp->fds = uml_vector_user_open(vp->unit, vp->parsed); in vector_net_open()
1212 if (vp->fds == NULL) in vector_net_open()
1218 if ((vp->options & VECTOR_RX) > 0) { in vector_net_open()
1219 vp->rx_queue = create_queue( in vector_net_open()
1221 get_depth(vp->parsed), in vector_net_open()
1222 vp->rx_header_size, in vector_net_open()
1225 atomic_set(&vp->rx_queue->queue_depth, get_depth(vp->parsed)); in vector_net_open()
1227 vp->header_rxbuffer = kmalloc( in vector_net_open()
1228 vp->rx_header_size, in vector_net_open()
1231 if (vp->header_rxbuffer == NULL) in vector_net_open()
1234 if ((vp->options & VECTOR_TX) > 0) { in vector_net_open()
1235 vp->tx_queue = create_queue( in vector_net_open()
1237 get_depth(vp->parsed), in vector_net_open()
1238 vp->header_size, in vector_net_open()
1242 vp->header_txbuffer = kmalloc(vp->header_size, GFP_KERNEL); in vector_net_open()
1243 if (vp->header_txbuffer == NULL) in vector_net_open()
1247 netif_napi_add_weight(vp->dev, &vp->napi, vector_poll, in vector_net_open()
1248 get_depth(vp->parsed)); in vector_net_open()
1249 napi_enable(&vp->napi); in vector_net_open()
1253 irq_rr + VECTOR_BASE_IRQ, vp->fds->rx_fd, in vector_net_open()
1255 IRQF_SHARED, dev->name, dev); in vector_net_open()
1258 err = -ENETUNREACH; in vector_net_open()
1261 vp->rx_irq = irq_rr + VECTOR_BASE_IRQ; in vector_net_open()
1262 dev->irq = irq_rr + VECTOR_BASE_IRQ; in vector_net_open()
1265 /* WRITE IRQ - we need it only if we have vector TX */ in vector_net_open()
1266 if ((vp->options & VECTOR_TX) > 0) { in vector_net_open()
1268 irq_rr + VECTOR_BASE_IRQ, vp->fds->tx_fd, in vector_net_open()
1270 IRQF_SHARED, dev->name, dev); in vector_net_open()
1274 err = -ENETUNREACH; in vector_net_open()
1277 vp->tx_irq = irq_rr + VECTOR_BASE_IRQ; in vector_net_open()
1281 if ((vp->options & VECTOR_QDISC_BYPASS) != 0) { in vector_net_open()
1282 if (!uml_raw_enable_qdisc_bypass(vp->fds->rx_fd)) in vector_net_open()
1283 vp->options |= VECTOR_BPF; in vector_net_open()
1285 if (((vp->options & VECTOR_BPF) != 0) && (vp->bpf == NULL)) in vector_net_open()
1286 vp->bpf = uml_vector_default_bpf(dev->dev_addr); in vector_net_open()
1288 if (vp->bpf != NULL) in vector_net_open()
1289 uml_vector_attach_bpf(vp->fds->rx_fd, vp->bpf); in vector_net_open()
1294 /* clear buffer - it can happen that the host side of the interface in vector_net_open()
1299 napi_schedule(&vp->napi); in vector_net_open()
1301 vdevice = find_device(vp->unit); in vector_net_open()
1302 vdevice->opened = 1; in vector_net_open()
1304 if ((vp->options & VECTOR_TX) != 0) in vector_net_open()
1305 add_timer(&vp->tl); in vector_net_open()
1315 /* TODO: - we can do some BPF games here */ in vector_net_set_multicast_list()
1323 vp->estats.tx_timeout_count++; in vector_net_tx_timeout()
1325 schedule_work(&vp->reset_tx); in vector_net_tx_timeout()
1344 /* All new frame buffers will be GRO-sized */ in vector_set_features()
1345 vp->req_size = 65536; in vector_set_features()
1348 vp->req_size = vp->max_packet + vp->headroom + SAFETY_MARGIN; in vector_set_features()
1355 disable_irq(dev->irq); in vector_net_poll_controller()
1356 vector_rx_interrupt(dev->irq, dev); in vector_net_poll_controller()
1357 enable_irq(dev->irq); in vector_net_poll_controller()
1364 strscpy(info->driver, DRIVER_NAME); in vector_net_get_drvinfo()
1375 if (!(vp->options & VECTOR_BPF_FLASH)) { in vector_net_load_bpf_flash()
1376 netdev_err(dev, "loading firmware not permitted: %s\n", efl->data); in vector_net_load_bpf_flash()
1377 return -1; in vector_net_load_bpf_flash()
1380 if (vp->bpf != NULL) { in vector_net_load_bpf_flash()
1381 if (vp->opened) in vector_net_load_bpf_flash()
1382 uml_vector_detach_bpf(vp->fds->rx_fd, vp->bpf); in vector_net_load_bpf_flash()
1383 kfree(vp->bpf->filter); in vector_net_load_bpf_flash()
1384 vp->bpf->filter = NULL; in vector_net_load_bpf_flash()
1386 vp->bpf = kmalloc(sizeof(struct sock_fprog), GFP_ATOMIC); in vector_net_load_bpf_flash()
1387 if (vp->bpf == NULL) { in vector_net_load_bpf_flash()
1393 vdevice = find_device(vp->unit); in vector_net_load_bpf_flash()
1395 if (request_firmware(&fw, efl->data, &vdevice->pdev.dev)) in vector_net_load_bpf_flash()
1398 vp->bpf->filter = kmemdup(fw->data, fw->size, GFP_ATOMIC); in vector_net_load_bpf_flash()
1399 if (!vp->bpf->filter) in vector_net_load_bpf_flash()
1402 vp->bpf->len = fw->size / sizeof(struct sock_filter); in vector_net_load_bpf_flash()
1405 if (vp->opened) in vector_net_load_bpf_flash()
1406 result = uml_vector_attach_bpf(vp->fds->rx_fd, vp->bpf); in vector_net_load_bpf_flash()
1414 if (vp->bpf != NULL) in vector_net_load_bpf_flash()
1415 kfree(vp->bpf->filter); in vector_net_load_bpf_flash()
1416 kfree(vp->bpf); in vector_net_load_bpf_flash()
1417 vp->bpf = NULL; in vector_net_load_bpf_flash()
1418 return -1; in vector_net_load_bpf_flash()
1428 ring->rx_max_pending = vp->rx_queue->max_depth; in vector_get_ringparam()
1429 ring->tx_max_pending = vp->tx_queue->max_depth; in vector_get_ringparam()
1430 ring->rx_pending = vp->rx_queue->max_depth; in vector_get_ringparam()
1431 ring->tx_pending = vp->tx_queue->max_depth; in vector_get_ringparam()
1457 return -EOPNOTSUPP; in vector_get_sset_count()
1473 spin_lock(&vp->tx_queue->head_lock); in vector_get_ethtool_stats()
1474 spin_lock(&vp->rx_queue->head_lock); in vector_get_ethtool_stats()
1475 memcpy(tmp_stats, &vp->estats, sizeof(struct vector_estats)); in vector_get_ethtool_stats()
1476 spin_unlock(&vp->rx_queue->head_lock); in vector_get_ethtool_stats()
1477 spin_unlock(&vp->tx_queue->head_lock); in vector_get_ethtool_stats()
1487 ec->tx_coalesce_usecs = (vp->coalesce * 1000000) / HZ; in vector_get_coalesce()
1498 vp->coalesce = (ec->tx_coalesce_usecs * HZ) / 1000000; in vector_set_coalesce()
1499 if (vp->coalesce == 0) in vector_set_coalesce()
1500 vp->coalesce = 1; in vector_set_coalesce()
1538 vp->estats.tx_kicks++; in vector_timer_expire()
1539 napi_schedule(&vp->napi); in vector_timer_expire()
1567 dev->mtu = get_mtu(def); in vector_eth_configure()
1569 INIT_LIST_HEAD(&device->list); in vector_eth_configure()
1570 device->unit = n; in vector_eth_configure()
1576 snprintf(dev->name, sizeof(dev->name), "vec%d", n); in vector_eth_configure()
1585 device->pdev.id = n; in vector_eth_configure()
1586 device->pdev.name = DRIVER_NAME; in vector_eth_configure()
1587 device->pdev.dev.release = vector_device_release; in vector_eth_configure()
1588 dev_set_drvdata(&device->pdev.dev, device); in vector_eth_configure()
1589 if (platform_device_register(&device->pdev)) in vector_eth_configure()
1591 SET_NETDEV_DEV(dev, &device->pdev.dev); in vector_eth_configure()
1593 device->dev = dev; in vector_eth_configure()
1597 .list = LIST_HEAD_INIT(vp->list), in vector_eth_configure()
1605 /* TODO - we need to calculate headroom so that ip header in vector_eth_configure()
1625 dev->features = dev->hw_features = (NETIF_F_SG | NETIF_F_FRAGLIST); in vector_eth_configure()
1626 INIT_WORK(&vp->reset_tx, vector_reset_tx); in vector_eth_configure()
1628 timer_setup(&vp->tl, vector_timer_expire, 0); in vector_eth_configure()
1631 dev->netdev_ops = &vector_netdev_ops; in vector_eth_configure()
1632 dev->ethtool_ops = &vector_net_ethtool_ops; in vector_eth_configure()
1633 dev->watchdog_timeo = (HZ >> 1); in vector_eth_configure()
1634 /* primary IRQ - fixme */ in vector_eth_configure()
1635 dev->irq = 0; /* we will adjust this once opened */ in vector_eth_configure()
1644 list_add(&device->list, &vector_devices); in vector_eth_configure()
1672 parsed = uml_parse_vector_ifspec(def->arguments); in vector_init()
1674 vector_eth_configure(def->unit, parsed); in vector_init()
1693 printk(KERN_ERR "vector_setup - Couldn't parse '%s' : %s\n", in vector_setup()
1698 INIT_LIST_HEAD(&new->list); in vector_setup()
1699 new->unit = n; in vector_setup()
1700 new->arguments = str; in vector_setup()
1701 list_add_tail(&new->list, &vec_cmd_line); in vector_setup()
1707 "vec[0-9]+:<option>=<value>,<option>=<value>\n"
1708 " Configure a vector io network device.\n\n"