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[net-next-2.6.git] / drivers / infiniband / hw / nes / nes_nic.c
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3c2d774c 1/*
fa6c87d5 2 * Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
3c2d774c
GS		 3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 *
32 */
33
34#include <linux/module.h>
35#include <linux/moduleparam.h>
36#include <linux/netdevice.h>
37#include <linux/etherdevice.h>
38#include <linux/ip.h>
39#include <linux/tcp.h>
40#include <linux/if_arp.h>
41#include <linux/if_vlan.h>
42#include <linux/ethtool.h>
5a0e3ad6 43#include <linux/slab.h>
3c2d774c
GS		 44#include <net/tcp.h>
45
46#include <net/inet_common.h>
47#include <linux/inet.h>
48
49#include "nes.h"
50
51static struct nic_qp_map nic_qp_mapping_0[] = {
52 {16,0,0,1},{24,4,0,0},{28,8,0,0},{32,12,0,0},
53 {20,2,2,1},{26,6,2,0},{30,10,2,0},{34,14,2,0},
54 {18,1,1,1},{25,5,1,0},{29,9,1,0},{33,13,1,0},
55 {22,3,3,1},{27,7,3,0},{31,11,3,0},{35,15,3,0}
56};
57
58static struct nic_qp_map nic_qp_mapping_1[] = {
59 {18,1,1,1},{25,5,1,0},{29,9,1,0},{33,13,1,0},
60 {22,3,3,1},{27,7,3,0},{31,11,3,0},{35,15,3,0}
61};
62
63static struct nic_qp_map nic_qp_mapping_2[] = {
64 {20,2,2,1},{26,6,2,0},{30,10,2,0},{34,14,2,0}
65};
66
67static struct nic_qp_map nic_qp_mapping_3[] = {
68 {22,3,3,1},{27,7,3,0},{31,11,3,0},{35,15,3,0}
69};
70
71static struct nic_qp_map nic_qp_mapping_4[] = {
72 {28,8,0,0},{32,12,0,0}
73};
74
75static struct nic_qp_map nic_qp_mapping_5[] = {
76 {29,9,1,0},{33,13,1,0}
77};
78
79static struct nic_qp_map nic_qp_mapping_6[] = {
80 {30,10,2,0},{34,14,2,0}
81};
82
83static struct nic_qp_map nic_qp_mapping_7[] = {
84 {31,11,3,0},{35,15,3,0}
85};
86
87static struct nic_qp_map *nic_qp_mapping_per_function[] = {
88 nic_qp_mapping_0, nic_qp_mapping_1, nic_qp_mapping_2, nic_qp_mapping_3,
89 nic_qp_mapping_4, nic_qp_mapping_5, nic_qp_mapping_6, nic_qp_mapping_7
90};
91
92static const u32 default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
93 | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
94static int debug = -1;
7e36d3d7 95static int nics_per_function = 1;
3c2d774c 96
3c2d774c
GS		 97/**
98 * nes_netdev_poll
99 */
100static int nes_netdev_poll(struct napi_struct *napi, int budget)
101{
102 struct nes_vnic *nesvnic = container_of(napi, struct nes_vnic, napi);
3c2d774c
GS		 103 struct nes_device *nesdev = nesvnic->nesdev;
104 struct nes_hw_nic_cq *nescq = &nesvnic->nic_cq;
105
106 nesvnic->budget = budget;
107 nescq->cqes_pending = 0;
108 nescq->rx_cqes_completed = 0;
109 nescq->cqe_allocs_pending = 0;
110 nescq->rx_pkts_indicated = 0;
111
112 nes_nic_ce_handler(nesdev, nescq);
113
114 if (nescq->cqes_pending == 0) {
288379f0 115 napi_complete(napi);
3c2d774c
GS		 116 /* clear out completed cqes and arm */
117 nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
118 nescq->cq_number | (nescq->cqe_allocs_pending << 16));
119 nes_read32(nesdev->regs+NES_CQE_ALLOC);
120 } else {
121 /* clear out completed cqes but don't arm */
122 nes_write32(nesdev->regs+NES_CQE_ALLOC,
123 nescq->cq_number | (nescq->cqe_allocs_pending << 16));
124 nes_debug(NES_DBG_NETDEV, "%s: exiting with work pending\n",
125 nesvnic->netdev->name);
126 }
127 return nescq->rx_pkts_indicated;
128}
129
130
131/**
132 * nes_netdev_open - Activate the network interface; ifconfig
133 * ethx up.
134 */
135static int nes_netdev_open(struct net_device *netdev)
136{
137 u32 macaddr_low;
138 u16 macaddr_high;
139 struct nes_vnic *nesvnic = netdev_priv(netdev);
140 struct nes_device *nesdev = nesvnic->nesdev;
141 int ret;
142 int i;
11e0704b 143 struct nes_vnic *first_nesvnic = NULL;
3c2d774c
GS		 144 u32 nic_active_bit;
145 u32 nic_active;
11e0704b 146 struct list_head *list_pos, *list_temp;
3c2d774c
GS		 147
148 assert(nesdev != NULL);
149
11e0704b
GS		 150 if (nesvnic->netdev_open == 1)
151 return 0;
3c2d774c
GS		 152
153 if (netif_msg_ifup(nesvnic))
154 printk(KERN_INFO PFX "%s: enabling interface\n", netdev->name);
155
156 ret = nes_init_nic_qp(nesdev, netdev);
157 if (ret) {
158 return ret;
159 }
160
161 netif_carrier_off(netdev);
162 netif_stop_queue(netdev);
163
164 if ((!nesvnic->of_device_registered) && (nesvnic->rdma_enabled)) {
165 nesvnic->nesibdev = nes_init_ofa_device(netdev);
166 if (nesvnic->nesibdev == NULL) {
167 printk(KERN_ERR PFX "%s: nesvnic->nesibdev alloc failed", netdev->name);
168 } else {
169 nesvnic->nesibdev->nesvnic = nesvnic;
170 ret = nes_register_ofa_device(nesvnic->nesibdev);
171 if (ret) {
172 printk(KERN_ERR PFX "%s: Unable to register RDMA device, ret = %d\n",
173 netdev->name, ret);
174 }
175 }
176 }
177 /* Set packet filters */
178 nic_active_bit = 1 << nesvnic->nic_index;
179 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_ACTIVE);
180 nic_active |= nic_active_bit;
181 nes_write_indexed(nesdev, NES_IDX_NIC_ACTIVE, nic_active);
182 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE);
183 nic_active |= nic_active_bit;
184 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE, nic_active);
185 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON);
186 nic_active |= nic_active_bit;
187 nes_write_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON, nic_active);
188
7495ab68 189 macaddr_high = ((u16)netdev->dev_addr[0]) << 8;
3c2d774c 190 macaddr_high += (u16)netdev->dev_addr[1];
7495ab68
GS		 191
192 macaddr_low = ((u32)netdev->dev_addr[2]) << 24;
193 macaddr_low += ((u32)netdev->dev_addr[3]) << 16;
194 macaddr_low += ((u32)netdev->dev_addr[4]) << 8;
195 macaddr_low += (u32)netdev->dev_addr[5];
3c2d774c
GS		 196
197 /* Program the various MAC regs */
198 for (i = 0; i < NES_MAX_PORT_COUNT; i++) {
199 if (nesvnic->qp_nic_index[i] == 0xf) {
200 break;
201 }
202 nes_debug(NES_DBG_NETDEV, "i=%d, perfect filter table index= %d, PERF FILTER LOW"
203 " (Addr:%08X) = %08X, HIGH = %08X.\n",
204 i, nesvnic->qp_nic_index[i],
7e36d3d7
VM		 205 NES_IDX_PERFECT_FILTER_LOW+
206 (nesvnic->qp_nic_index[i] * 8),
3c2d774c
GS		 207 macaddr_low,
208 (u32)macaddr_high | NES_MAC_ADDR_VALID |
209 ((((u32)nesvnic->nic_index) << 16)));
210 nes_write_indexed(nesdev,
211 NES_IDX_PERFECT_FILTER_LOW + (nesvnic->qp_nic_index[i] * 8),
212 macaddr_low);
213 nes_write_indexed(nesdev,
214 NES_IDX_PERFECT_FILTER_HIGH + (nesvnic->qp_nic_index[i] * 8),
215 (u32)macaddr_high | NES_MAC_ADDR_VALID |
216 ((((u32)nesvnic->nic_index) << 16)));
217 }
218
219
220 nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
221 nesvnic->nic_cq.cq_number);
222 nes_read32(nesdev->regs+NES_CQE_ALLOC);
11e0704b
GS		 223 list_for_each_safe(list_pos, list_temp, &nesdev->nesadapter->nesvnic_list[nesdev->mac_index]) {
224 first_nesvnic = container_of(list_pos, struct nes_vnic, list);
225 if (first_nesvnic->netdev_open == 1)
226 break;
227 }
228 if (first_nesvnic->netdev_open == 0) {
229 nes_debug(NES_DBG_INIT, "Setting up MAC interrupt mask.\n");
230 nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK + (0x200 * nesdev->mac_index),
231 ~(NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT |
232 NES_MAC_INT_TX_UNDERFLOW | NES_MAC_INT_TX_ERROR));
233 first_nesvnic = nesvnic;
234 }
cd6860eb
FL		 235
236 if (nesvnic->of_device_registered) {
237 nesdev->iw_status = 1;
238 nesdev->nesadapter->send_term_ok = 1;
239 nes_port_ibevent(nesvnic);
240 }
241
3c2d774c
GS		 242 if (first_nesvnic->linkup) {
243 /* Enable network packets */
244 nesvnic->linkup = 1;
245 netif_start_queue(netdev);
246 netif_carrier_on(netdev);
247 }
248 napi_enable(&nesvnic->napi);
249 nesvnic->netdev_open = 1;
250
251 return 0;
252}
253
254
255/**
256 * nes_netdev_stop
257 */
258static int nes_netdev_stop(struct net_device *netdev)
259{
260 struct nes_vnic *nesvnic = netdev_priv(netdev);
261 struct nes_device *nesdev = nesvnic->nesdev;
262 u32 nic_active_mask;
263 u32 nic_active;
11e0704b
GS		 264 struct nes_vnic *first_nesvnic = NULL;
265 struct list_head *list_pos, *list_temp;
3c2d774c
GS		 266
267 nes_debug(NES_DBG_SHUTDOWN, "nesvnic=%p, nesdev=%p, netdev=%p %s\n",
268 nesvnic, nesdev, netdev, netdev->name);
269 if (nesvnic->netdev_open == 0)
270 return 0;
271
272 if (netif_msg_ifdown(nesvnic))
273 printk(KERN_INFO PFX "%s: disabling interface\n", netdev->name);
274
275 /* Disable network packets */
276 napi_disable(&nesvnic->napi);
277 netif_stop_queue(netdev);
11e0704b
GS		 278 list_for_each_safe(list_pos, list_temp, &nesdev->nesadapter->nesvnic_list[nesdev->mac_index]) {
279 first_nesvnic = container_of(list_pos, struct nes_vnic, list);
280 if ((first_nesvnic->netdev_open == 1) && (first_nesvnic != nesvnic))
281 break;
282 }
283
068e80de
CT		 284 if ((first_nesvnic->netdev_open == 1) && (first_nesvnic != nesvnic) &&
285 (PCI_FUNC(first_nesvnic->nesdev->pcidev->devfn) !=
286 PCI_FUNC(nesvnic->nesdev->pcidev->devfn))) {
287 nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK+
288 (0x200*nesdev->mac_index), 0xffffffff);
289 nes_write_indexed(first_nesvnic->nesdev,
290 NES_IDX_MAC_INT_MASK+
291 (0x200*first_nesvnic->nesdev->mac_index),
292 ~(NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT |
293 NES_MAC_INT_TX_UNDERFLOW | NES_MAC_INT_TX_ERROR));
294 } else {
11e0704b 295 nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK+(0x200*nesdev->mac_index), 0xffffffff);
3c2d774c
GS		 296 }
297
298 nic_active_mask = ~((u32)(1 << nesvnic->nic_index));
299 nes_write_indexed(nesdev, NES_IDX_PERFECT_FILTER_HIGH+
300 (nesvnic->perfect_filter_index*8), 0);
301 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_ACTIVE);
302 nic_active &= nic_active_mask;
303 nes_write_indexed(nesdev, NES_IDX_NIC_ACTIVE, nic_active);
304 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
305 nic_active &= nic_active_mask;
306 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active);
307 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE);
308 nic_active &= nic_active_mask;
309 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE, nic_active);
310 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
311 nic_active &= nic_active_mask;
312 nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
313 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON);
314 nic_active &= nic_active_mask;
315 nes_write_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON, nic_active);
316
317
318 if (nesvnic->of_device_registered) {
cd6860eb
FL		 319 nesdev->nesadapter->send_term_ok = 0;
320 nesdev->iw_status = 0;
321 nes_port_ibevent(nesvnic);
3c2d774c
GS		 322 }
323 nes_destroy_nic_qp(nesvnic);
324
325 nesvnic->netdev_open = 0;
326
327 return 0;
328}
329
330
331/**
332 * nes_nic_send
333 */
334static int nes_nic_send(struct sk_buff *skb, struct net_device *netdev)
335{
336 struct nes_vnic *nesvnic = netdev_priv(netdev);
337 struct nes_device *nesdev = nesvnic->nesdev;
338 struct nes_hw_nic *nesnic = &nesvnic->nic;
339 struct nes_hw_nic_sq_wqe *nic_sqe;
340 struct tcphdr *tcph;
341 __le16 *wqe_fragment_length;
342 u32 wqe_misc;
343 u16 wqe_fragment_index = 1; /* first fragment (0) is used by copy buffer */
344 u16 skb_fragment_index;
345 dma_addr_t bus_address;
346
347 nic_sqe = &nesnic->sq_vbase[nesnic->sq_head];
348 wqe_fragment_length = (__le16 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX];
349
350 /* setup the VLAN tag if present */
351 if (vlan_tx_tag_present(skb)) {
352 nes_debug(NES_DBG_NIC_TX, "%s: VLAN packet to send... VLAN = %08X\n",
353 netdev->name, vlan_tx_tag_get(skb));
354 wqe_misc = NES_NIC_SQ_WQE_TAGVALUE_ENABLE;
355 wqe_fragment_length[0] = (__force __le16) vlan_tx_tag_get(skb);
356 } else
357 wqe_misc = 0;
358
359 /* bump past the vlan tag */
360 wqe_fragment_length++;
361 /* wqe_fragment_address = (u64 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX]; */
362
363 if (skb->ip_summed == CHECKSUM_PARTIAL) {
364 tcph = tcp_hdr(skb);
365 if (1) {
366 if (skb_is_gso(skb)) {
367 /* nes_debug(NES_DBG_NIC_TX, "%s: TSO request... seg size = %u\n",
368 netdev->name, skb_is_gso(skb)); */
369 wqe_misc |= NES_NIC_SQ_WQE_LSO_ENABLE |
370 NES_NIC_SQ_WQE_COMPLETION | (u16)skb_is_gso(skb);
371 set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_LSO_INFO_IDX,
372 ((u32)tcph->doff) |
373 (((u32)(((unsigned char *)tcph) - skb->data)) << 4));
374 } else {
375 wqe_misc |= NES_NIC_SQ_WQE_COMPLETION;
376 }
377 }
378 } else { /* CHECKSUM_HW */
379 wqe_misc |= NES_NIC_SQ_WQE_DISABLE_CHKSUM | NES_NIC_SQ_WQE_COMPLETION;
380 }
381
382 set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_TOTAL_LENGTH_IDX,
383 skb->len);
384 memcpy(&nesnic->first_frag_vbase[nesnic->sq_head].buffer,
385 skb->data, min(((unsigned int)NES_FIRST_FRAG_SIZE), skb_headlen(skb)));
386 wqe_fragment_length[0] = cpu_to_le16(min(((unsigned int)NES_FIRST_FRAG_SIZE),
387 skb_headlen(skb)));
388 wqe_fragment_length[1] = 0;
389 if (skb_headlen(skb) > NES_FIRST_FRAG_SIZE) {
390 if ((skb_shinfo(skb)->nr_frags + 1) > 4) {
391 nes_debug(NES_DBG_NIC_TX, "%s: Packet with %u fragments not sent, skb_headlen=%u\n",
392 netdev->name, skb_shinfo(skb)->nr_frags + 2, skb_headlen(skb));
393 kfree_skb(skb);
394 nesvnic->tx_sw_dropped++;
395 return NETDEV_TX_LOCKED;
396 }
397 set_bit(nesnic->sq_head, nesnic->first_frag_overflow);
398 bus_address = pci_map_single(nesdev->pcidev, skb->data + NES_FIRST_FRAG_SIZE,
399 skb_headlen(skb) - NES_FIRST_FRAG_SIZE, PCI_DMA_TODEVICE);
400 wqe_fragment_length[wqe_fragment_index++] =
401 cpu_to_le16(skb_headlen(skb) - NES_FIRST_FRAG_SIZE);
402 wqe_fragment_length[wqe_fragment_index] = 0;
403 set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG1_LOW_IDX,
404 ((u64)(bus_address)));
405 nesnic->tx_skb[nesnic->sq_head] = skb;
406 }
407
408 if (skb_headlen(skb) == skb->len) {
409 if (skb_headlen(skb) <= NES_FIRST_FRAG_SIZE) {
410 nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_2_1_IDX] = 0;
2869975c 411 nesnic->tx_skb[nesnic->sq_head] = skb;
3c2d774c
GS		 412 }
413 } else {
414 /* Deal with Fragments */
415 nesnic->tx_skb[nesnic->sq_head] = skb;
416 for (skb_fragment_index = 0; skb_fragment_index < skb_shinfo(skb)->nr_frags;
417 skb_fragment_index++) {
418 bus_address = pci_map_page( nesdev->pcidev,
419 skb_shinfo(skb)->frags[skb_fragment_index].page,
420 skb_shinfo(skb)->frags[skb_fragment_index].page_offset,
421 skb_shinfo(skb)->frags[skb_fragment_index].size,
422 PCI_DMA_TODEVICE);
423 wqe_fragment_length[wqe_fragment_index] =
424 cpu_to_le16(skb_shinfo(skb)->frags[skb_fragment_index].size);
425 set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG0_LOW_IDX+(2*wqe_fragment_index),
426 bus_address);
427 wqe_fragment_index++;
428 if (wqe_fragment_index < 5)
429 wqe_fragment_length[wqe_fragment_index] = 0;
430 }
431 }
432
433 set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_MISC_IDX, wqe_misc);
434 nesnic->sq_head++;
435 nesnic->sq_head &= nesnic->sq_size - 1;
436
437 return NETDEV_TX_OK;
438}
439
440
441/**
442 * nes_netdev_start_xmit
443 */
444static int nes_netdev_start_xmit(struct sk_buff *skb, struct net_device *netdev)
445{
446 struct nes_vnic *nesvnic = netdev_priv(netdev);
447 struct nes_device *nesdev = nesvnic->nesdev;
448 struct nes_hw_nic *nesnic = &nesvnic->nic;
449 struct nes_hw_nic_sq_wqe *nic_sqe;
450 struct tcphdr *tcph;
451 /* struct udphdr *udph; */
a06fd26d 452#define NES_MAX_TSO_FRAGS MAX_SKB_FRAGS
3c2d774c
GS		 453 /* 64K segment plus overflow on each side */
454 dma_addr_t tso_bus_address[NES_MAX_TSO_FRAGS];
455 dma_addr_t bus_address;
456 u32 tso_frag_index;
457 u32 tso_frag_count;
458 u32 tso_wqe_length;
459 u32 curr_tcp_seq;
460 u32 wqe_count=1;
461 u32 send_rc;
462 struct iphdr *iph;
3c2d774c
GS		 463 __le16 *wqe_fragment_length;
464 u32 nr_frags;
465 u32 original_first_length;
7495ab68 466 /* u64 *wqe_fragment_address; */
3c2d774c
GS		 467 /* first fragment (0) is used by copy buffer */
468 u16 wqe_fragment_index=1;
469 u16 hoffset;
470 u16 nhoffset;
471 u16 wqes_needed;
472 u16 wqes_available;
3c2d774c
GS		 473 u32 wqe_misc;
474
7495ab68
GS		 475 /*
476 * nes_debug(NES_DBG_NIC_TX, "%s Request to tx NIC packet length %u, headlen %u,"
477 * " (%u frags), tso_size=%u\n",
478 * netdev->name, skb->len, skb_headlen(skb),
479 * skb_shinfo(skb)->nr_frags, skb_is_gso(skb));
480 */
3c2d774c
GS		 481
482 if (!netif_carrier_ok(netdev))
483 return NETDEV_TX_OK;
484
485 if (netif_queue_stopped(netdev))
486 return NETDEV_TX_BUSY;
487
3c2d774c
GS		 488 /* Check if SQ is full */
489 if ((((nesnic->sq_tail+(nesnic->sq_size*2))-nesnic->sq_head) & (nesnic->sq_size - 1)) == 1) {
490 if (!netif_queue_stopped(netdev)) {
491 netif_stop_queue(netdev);
492 barrier();
493 if ((((((volatile u16)nesnic->sq_tail)+(nesnic->sq_size*2))-nesnic->sq_head) & (nesnic->sq_size - 1)) != 1) {
494 netif_start_queue(netdev);
495 goto sq_no_longer_full;
496 }
497 }
498 nesvnic->sq_full++;
3c2d774c
GS		 499 return NETDEV_TX_BUSY;
500 }
501
502sq_no_longer_full:
503 nr_frags = skb_shinfo(skb)->nr_frags;
504 if (skb_headlen(skb) > NES_FIRST_FRAG_SIZE) {
505 nr_frags++;
506 }
507 /* Check if too many fragments */
508 if (unlikely((nr_frags > 4))) {
509 if (skb_is_gso(skb)) {
510 nesvnic->segmented_tso_requests++;
511 nesvnic->tso_requests++;
3c2d774c
GS		 512 /* Basically 4 fragments available per WQE with extended fragments */
513 wqes_needed = nr_frags >> 2;
514 wqes_needed += (nr_frags&3)?1:0;
515 wqes_available = (((nesnic->sq_tail+nesnic->sq_size)-nesnic->sq_head) - 1) &
516 (nesnic->sq_size - 1);
517
518 if (unlikely(wqes_needed > wqes_available)) {
519 if (!netif_queue_stopped(netdev)) {
520 netif_stop_queue(netdev);
521 barrier();
522 wqes_available = (((((volatile u16)nesnic->sq_tail)+nesnic->sq_size)-nesnic->sq_head) - 1) &
523 (nesnic->sq_size - 1);
524 if (wqes_needed <= wqes_available) {
525 netif_start_queue(netdev);
526 goto tso_sq_no_longer_full;
527 }
528 }
529 nesvnic->sq_full++;
3c2d774c
GS		 530 nes_debug(NES_DBG_NIC_TX, "%s: HNIC SQ full- TSO request has too many frags!\n",
531 netdev->name);
532 return NETDEV_TX_BUSY;
533 }
534tso_sq_no_longer_full:
535 /* Map all the buffers */
536 for (tso_frag_count=0; tso_frag_count < skb_shinfo(skb)->nr_frags;
537 tso_frag_count++) {
538 tso_bus_address[tso_frag_count] = pci_map_page( nesdev->pcidev,
539 skb_shinfo(skb)->frags[tso_frag_count].page,
540 skb_shinfo(skb)->frags[tso_frag_count].page_offset,
541 skb_shinfo(skb)->frags[tso_frag_count].size,
542 PCI_DMA_TODEVICE);
543 }
544
545 tso_frag_index = 0;
546 curr_tcp_seq = ntohl(tcp_hdr(skb)->seq);
547 hoffset = skb_transport_header(skb) - skb->data;
548 nhoffset = skb_network_header(skb) - skb->data;
549 original_first_length = hoffset + ((((struct tcphdr *)skb_transport_header(skb))->doff)<<2);
550
551 for (wqe_count=0; wqe_count<((u32)wqes_needed); wqe_count++) {
552 tso_wqe_length = 0;
553 nic_sqe = &nesnic->sq_vbase[nesnic->sq_head];
554 wqe_fragment_length =
555 (__le16 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX];
556 /* setup the VLAN tag if present */
557 if (vlan_tx_tag_present(skb)) {
558 nes_debug(NES_DBG_NIC_TX, "%s: VLAN packet to send... VLAN = %08X\n",
559 netdev->name, vlan_tx_tag_get(skb) );
560 wqe_misc = NES_NIC_SQ_WQE_TAGVALUE_ENABLE;
561 wqe_fragment_length[0] = (__force __le16) vlan_tx_tag_get(skb);
562 } else
563 wqe_misc = 0;
564
565 /* bump past the vlan tag */
566 wqe_fragment_length++;
567
568 /* Assumes header totally fits in allocated buffer and is in first fragment */
569 if (original_first_length > NES_FIRST_FRAG_SIZE) {
570 nes_debug(NES_DBG_NIC_TX, "ERROR: SKB header too big, headlen=%u, FIRST_FRAG_SIZE=%u\n",
571 original_first_length, NES_FIRST_FRAG_SIZE);
572 nes_debug(NES_DBG_NIC_TX, "%s Request to tx NIC packet length %u, headlen %u,"
573 " (%u frags), tso_size=%u\n",
574 netdev->name,
575 skb->len, skb_headlen(skb),
576 skb_shinfo(skb)->nr_frags, skb_is_gso(skb));
577 }
578 memcpy(&nesnic->first_frag_vbase[nesnic->sq_head].buffer,
579 skb->data, min(((unsigned int)NES_FIRST_FRAG_SIZE),
580 original_first_length));
581 iph = (struct iphdr *)
582 (&nesnic->first_frag_vbase[nesnic->sq_head].buffer[nhoffset]);
583 tcph = (struct tcphdr *)
584 (&nesnic->first_frag_vbase[nesnic->sq_head].buffer[hoffset]);
585 if ((wqe_count+1)!=(u32)wqes_needed) {
586 tcph->fin = 0;
587 tcph->psh = 0;
588 tcph->rst = 0;
589 tcph->urg = 0;
590 }
591 if (wqe_count) {
592 tcph->syn = 0;
593 }
594 tcph->seq = htonl(curr_tcp_seq);
595 wqe_fragment_length[0] = cpu_to_le16(min(((unsigned int)NES_FIRST_FRAG_SIZE),
596 original_first_length));
597
598 wqe_fragment_index = 1;
599 if ((wqe_count==0) && (skb_headlen(skb) > original_first_length)) {
600 set_bit(nesnic->sq_head, nesnic->first_frag_overflow);
601 bus_address = pci_map_single(nesdev->pcidev, skb->data + original_first_length,
602 skb_headlen(skb) - original_first_length, PCI_DMA_TODEVICE);
603 wqe_fragment_length[wqe_fragment_index++] =
604 cpu_to_le16(skb_headlen(skb) - original_first_length);
605 wqe_fragment_length[wqe_fragment_index] = 0;
606 set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG1_LOW_IDX,
607 bus_address);
168ac824
CT		 608 tso_wqe_length += skb_headlen(skb) -
609 original_first_length;
3c2d774c
GS		 610 }
611 while (wqe_fragment_index < 5) {
612 wqe_fragment_length[wqe_fragment_index] =
613 cpu_to_le16(skb_shinfo(skb)->frags[tso_frag_index].size);
614 set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG0_LOW_IDX+(2*wqe_fragment_index),
615 (u64)tso_bus_address[tso_frag_index]);
616 wqe_fragment_index++;
617 tso_wqe_length += skb_shinfo(skb)->frags[tso_frag_index++].size;
618 if (wqe_fragment_index < 5)
619 wqe_fragment_length[wqe_fragment_index] = 0;
620 if (tso_frag_index == tso_frag_count)
621 break;
622 }
623 if ((wqe_count+1) == (u32)wqes_needed) {
624 nesnic->tx_skb[nesnic->sq_head] = skb;
625 } else {
626 nesnic->tx_skb[nesnic->sq_head] = NULL;
627 }
628 wqe_misc |= NES_NIC_SQ_WQE_COMPLETION | (u16)skb_is_gso(skb);
629 if ((tso_wqe_length + original_first_length) > skb_is_gso(skb)) {
630 wqe_misc |= NES_NIC_SQ_WQE_LSO_ENABLE;
631 } else {
632 iph->tot_len = htons(tso_wqe_length + original_first_length - nhoffset);
633 }
634
635 set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_MISC_IDX,
636 wqe_misc);
637 set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_LSO_INFO_IDX,
638 ((u32)tcph->doff) | (((u32)hoffset) << 4));
639
640 set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_TOTAL_LENGTH_IDX,
641 tso_wqe_length + original_first_length);
642 curr_tcp_seq += tso_wqe_length;
643 nesnic->sq_head++;
644 nesnic->sq_head &= nesnic->sq_size-1;
645 }
646 } else {
647 nesvnic->linearized_skbs++;
648 hoffset = skb_transport_header(skb) - skb->data;
649 nhoffset = skb_network_header(skb) - skb->data;
650 skb_linearize(skb);
651 skb_set_transport_header(skb, hoffset);
652 skb_set_network_header(skb, nhoffset);
653 send_rc = nes_nic_send(skb, netdev);
2869975c 654 if (send_rc != NETDEV_TX_OK)
3c2d774c 655 return NETDEV_TX_OK;
3c2d774c
GS		 656 }
657 } else {
658 send_rc = nes_nic_send(skb, netdev);
2869975c 659 if (send_rc != NETDEV_TX_OK)
3c2d774c 660 return NETDEV_TX_OK;
3c2d774c
GS		 661 }
662
663 barrier();
664
665 if (wqe_count)
666 nes_write32(nesdev->regs+NES_WQE_ALLOC,
667 (wqe_count << 24) | (1 << 23) | nesvnic->nic.qp_id);
668
669 netdev->trans_start = jiffies;
3c2d774c
GS		 670
671 return NETDEV_TX_OK;
672}
673
674
675/**
676 * nes_netdev_get_stats
677 */
678static struct net_device_stats *nes_netdev_get_stats(struct net_device *netdev)
679{
680 struct nes_vnic *nesvnic = netdev_priv(netdev);
681 struct nes_device *nesdev = nesvnic->nesdev;
682 u64 u64temp;
683 u32 u32temp;
684
685 u32temp = nes_read_indexed(nesdev,
686 NES_IDX_ENDNODE0_NSTAT_RX_DISCARD + (nesvnic->nic_index*0x200));
687 nesvnic->netstats.rx_dropped += u32temp;
688 nesvnic->endnode_nstat_rx_discard += u32temp;
689
690 u64temp = (u64)nes_read_indexed(nesdev,
691 NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_LO + (nesvnic->nic_index*0x200));
692 u64temp += ((u64)nes_read_indexed(nesdev,
693 NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_HI + (nesvnic->nic_index*0x200))) << 32;
694
695 nesvnic->endnode_nstat_rx_octets += u64temp;
696 nesvnic->netstats.rx_bytes += u64temp;
697
698 u64temp = (u64)nes_read_indexed(nesdev,
699 NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_LO + (nesvnic->nic_index*0x200));
700 u64temp += ((u64)nes_read_indexed(nesdev,
701 NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_HI + (nesvnic->nic_index*0x200))) << 32;
702
703 nesvnic->endnode_nstat_rx_frames += u64temp;
704 nesvnic->netstats.rx_packets += u64temp;
705
706 u64temp = (u64)nes_read_indexed(nesdev,
707 NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_LO + (nesvnic->nic_index*0x200));
708 u64temp += ((u64)nes_read_indexed(nesdev,
709 NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_HI + (nesvnic->nic_index*0x200))) << 32;
710
711 nesvnic->endnode_nstat_tx_octets += u64temp;
712 nesvnic->netstats.tx_bytes += u64temp;
713
714 u64temp = (u64)nes_read_indexed(nesdev,
715 NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_LO + (nesvnic->nic_index*0x200));
716 u64temp += ((u64)nes_read_indexed(nesdev,
717 NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_HI + (nesvnic->nic_index*0x200))) << 32;
718
719 nesvnic->endnode_nstat_tx_frames += u64temp;
720 nesvnic->netstats.tx_packets += u64temp;
721
722 u32temp = nes_read_indexed(nesdev,
723 NES_IDX_MAC_RX_SHORT_FRAMES + (nesvnic->nesdev->mac_index*0x200));
724 nesvnic->netstats.rx_dropped += u32temp;
725 nesvnic->nesdev->mac_rx_errors += u32temp;
726 nesvnic->nesdev->mac_rx_short_frames += u32temp;
727
728 u32temp = nes_read_indexed(nesdev,
729 NES_IDX_MAC_RX_OVERSIZED_FRAMES + (nesvnic->nesdev->mac_index*0x200));
730 nesvnic->netstats.rx_dropped += u32temp;
731 nesvnic->nesdev->mac_rx_errors += u32temp;
732 nesvnic->nesdev->mac_rx_oversized_frames += u32temp;
733
734 u32temp = nes_read_indexed(nesdev,
735 NES_IDX_MAC_RX_JABBER_FRAMES + (nesvnic->nesdev->mac_index*0x200));
736 nesvnic->netstats.rx_dropped += u32temp;
737 nesvnic->nesdev->mac_rx_errors += u32temp;
738 nesvnic->nesdev->mac_rx_jabber_frames += u32temp;
739
740 u32temp = nes_read_indexed(nesdev,
741 NES_IDX_MAC_RX_SYMBOL_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
742 nesvnic->netstats.rx_dropped += u32temp;
743 nesvnic->nesdev->mac_rx_errors += u32temp;
744 nesvnic->nesdev->mac_rx_symbol_err_frames += u32temp;
745
746 u32temp = nes_read_indexed(nesdev,
747 NES_IDX_MAC_RX_LENGTH_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
748 nesvnic->netstats.rx_length_errors += u32temp;
749 nesvnic->nesdev->mac_rx_errors += u32temp;
750
751 u32temp = nes_read_indexed(nesdev,
752 NES_IDX_MAC_RX_CRC_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
753 nesvnic->nesdev->mac_rx_errors += u32temp;
754 nesvnic->nesdev->mac_rx_crc_errors += u32temp;
755 nesvnic->netstats.rx_crc_errors += u32temp;
756
757 u32temp = nes_read_indexed(nesdev,
758 NES_IDX_MAC_TX_ERRORS + (nesvnic->nesdev->mac_index*0x200));
759 nesvnic->nesdev->mac_tx_errors += u32temp;
760 nesvnic->netstats.tx_errors += u32temp;
761
762 return &nesvnic->netstats;
763}
764
765
766/**
767 * nes_netdev_tx_timeout
768 */
769static void nes_netdev_tx_timeout(struct net_device *netdev)
770{
771 struct nes_vnic *nesvnic = netdev_priv(netdev);
772
773 if (netif_msg_timer(nesvnic))
774 nes_debug(NES_DBG_NIC_TX, "%s: tx timeout\n", netdev->name);
775}
776
777
778/**
779 * nes_netdev_set_mac_address
780 */
781static int nes_netdev_set_mac_address(struct net_device *netdev, void *p)
782{
783 struct nes_vnic *nesvnic = netdev_priv(netdev);
784 struct nes_device *nesdev = nesvnic->nesdev;
785 struct sockaddr *mac_addr = p;
786 int i;
787 u32 macaddr_low;
788 u16 macaddr_high;
789
790 if (!is_valid_ether_addr(mac_addr->sa_data))
791 return -EADDRNOTAVAIL;
792
793 memcpy(netdev->dev_addr, mac_addr->sa_data, netdev->addr_len);
e174961c
JB		 794 printk(PFX "%s: Address length = %d, Address = %pM\n",
795 __func__, netdev->addr_len, mac_addr->sa_data);
7495ab68 796 macaddr_high = ((u16)netdev->dev_addr[0]) << 8;
3c2d774c 797 macaddr_high += (u16)netdev->dev_addr[1];
7495ab68
GS		 798 macaddr_low = ((u32)netdev->dev_addr[2]) << 24;
799 macaddr_low += ((u32)netdev->dev_addr[3]) << 16;
800 macaddr_low += ((u32)netdev->dev_addr[4]) << 8;
801 macaddr_low += (u32)netdev->dev_addr[5];
3c2d774c
GS		 802
803 for (i = 0; i < NES_MAX_PORT_COUNT; i++) {
804 if (nesvnic->qp_nic_index[i] == 0xf) {
805 break;
806 }
807 nes_write_indexed(nesdev,
808 NES_IDX_PERFECT_FILTER_LOW + (nesvnic->qp_nic_index[i] * 8),
809 macaddr_low);
810 nes_write_indexed(nesdev,
811 NES_IDX_PERFECT_FILTER_HIGH + (nesvnic->qp_nic_index[i] * 8),
812 (u32)macaddr_high | NES_MAC_ADDR_VALID |
813 ((((u32)nesvnic->nic_index) << 16)));
814 }
815 return 0;
816}
817
818
fbf219f1
JP		 819static void set_allmulti(struct nes_device *nesdev, u32 nic_active_bit)
820{
821 u32 nic_active;
822
823 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
824 nic_active |= nic_active_bit;
825 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active);
826 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
827 nic_active &= ~nic_active_bit;
828 nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
829}
830
831#define get_addr(addrs, index) ((addrs) + (index) * ETH_ALEN)
832
3c2d774c
GS		 833/**
834 * nes_netdev_set_multicast_list
835 */
1a855fbf 836static void nes_netdev_set_multicast_list(struct net_device *netdev)
3c2d774c
GS		 837{
838 struct nes_vnic *nesvnic = netdev_priv(netdev);
839 struct nes_device *nesdev = nesvnic->nesdev;
7e36d3d7 840 struct nes_adapter *nesadapter = nesvnic->nesdev->nesadapter;
3c2d774c
GS		 841 u32 nic_active_bit;
842 u32 nic_active;
843 u32 perfect_filter_register_address;
844 u32 macaddr_low;
845 u16 macaddr_high;
846 u8 mc_all_on = 0;
847 u8 mc_index;
848 int mc_nic_index = -1;
7e36d3d7
VM		 849 u8 pft_entries_preallocated = max(nesadapter->adapter_fcn_count *
850 nics_per_function, 4);
851 u8 max_pft_entries_avaiable = NES_PFT_SIZE - pft_entries_preallocated;
852 unsigned long flags;
fbf219f1 853 int mc_count = netdev_mc_count(netdev);
3c2d774c 854
7e36d3d7 855 spin_lock_irqsave(&nesadapter->resource_lock, flags);
3c2d774c
GS		 856 nic_active_bit = 1 << nesvnic->nic_index;
857
858 if (netdev->flags & IFF_PROMISC) {
859 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
860 nic_active |= nic_active_bit;
861 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active);
862 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
863 nic_active |= nic_active_bit;
864 nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
865 mc_all_on = 1;
7e36d3d7 866 } else if ((netdev->flags & IFF_ALLMULTI) ||
3c2d774c 867 (nesvnic->nic_index > 3)) {
fbf219f1 868 set_allmulti(nesdev, nic_active_bit);
3c2d774c
GS		 869 mc_all_on = 1;
870 } else {
871 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
872 nic_active &= ~nic_active_bit;
873 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active);
874 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
875 nic_active &= ~nic_active_bit;
876 nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
877 }
878
879 nes_debug(NES_DBG_NIC_RX, "Number of MC entries = %d, Promiscous = %d, All Multicast = %d.\n",
fbf219f1 880 mc_count, !!(netdev->flags & IFF_PROMISC),
7e36d3d7 881 !!(netdev->flags & IFF_ALLMULTI));
3c2d774c 882 if (!mc_all_on) {
fbf219f1
JP		 883 char *addrs;
884 int i;
22bedad3 885 struct netdev_hw_addr *ha;
fbf219f1
JP		 886
887 addrs = kmalloc(ETH_ALEN * mc_count, GFP_ATOMIC);
888 if (!addrs) {
889 set_allmulti(nesdev, nic_active_bit);
890 goto unlock;
891 }
892 i = 0;
22bedad3
JP		 893 netdev_for_each_mc_addr(ha, netdev)
894 memcpy(get_addr(addrs, i++), ha->addr, ETH_ALEN);
fbf219f1 895
7e36d3d7
VM		 896 perfect_filter_register_address = NES_IDX_PERFECT_FILTER_LOW +
897 pft_entries_preallocated * 0x8;
fbf219f1
JP		 898 for (i = 0, mc_index = 0; mc_index < max_pft_entries_avaiable;
899 mc_index++) {
900 while (i < mc_count && nesvnic->mcrq_mcast_filter &&
7e36d3d7 901 ((mc_nic_index = nesvnic->mcrq_mcast_filter(nesvnic,
fbf219f1 902 get_addr(addrs, i++))) == 0));
3c2d774c
GS		 903 if (mc_nic_index < 0)
904 mc_nic_index = nesvnic->nic_index;
7e36d3d7
VM		 905 while (nesadapter->pft_mcast_map[mc_index] < 16 &&
906 nesadapter->pft_mcast_map[mc_index] !=
907 nesvnic->nic_index &&
908 mc_index < max_pft_entries_avaiable) {
909 nes_debug(NES_DBG_NIC_RX,
910 "mc_index=%d skipping nic_index=%d,\
911 used for=%d \n", mc_index,
912 nesvnic->nic_index,
913 nesadapter->pft_mcast_map[mc_index]);
914 mc_index++;
915 }
916 if (mc_index >= max_pft_entries_avaiable)
917 break;
fbf219f1
JP		 918 if (i < mc_count) {
919 char *addr = get_addr(addrs, i++);
920
e174961c 921 nes_debug(NES_DBG_NIC_RX, "Assigning MC Address %pM to register 0x%04X nic_idx=%d\n",
fbf219f1 922 addr,
2bd01c5d
RD		 923 perfect_filter_register_address+(mc_index * 8),
924 mc_nic_index);
fbf219f1
JP		 925 macaddr_high = ((u16) addr[0]) << 8;
926 macaddr_high += (u16) addr[1];
927 macaddr_low = ((u32) addr[2]) << 24;
928 macaddr_low += ((u32) addr[3]) << 16;
929 macaddr_low += ((u32) addr[4]) << 8;
930 macaddr_low += (u32) addr[5];
3c2d774c
GS		 931 nes_write_indexed(nesdev,
932 perfect_filter_register_address+(mc_index * 8),
933 macaddr_low);
934 nes_write_indexed(nesdev,
935 perfect_filter_register_address+4+(mc_index * 8),
936 (u32)macaddr_high | NES_MAC_ADDR_VALID |
937 ((((u32)(1<<mc_nic_index)) << 16)));
7e36d3d7
VM		 938 nesadapter->pft_mcast_map[mc_index] =
939 nesvnic->nic_index;
3c2d774c
GS		 940 } else {
941 nes_debug(NES_DBG_NIC_RX, "Clearing MC Address at register 0x%04X\n",
942 perfect_filter_register_address+(mc_index * 8));
943 nes_write_indexed(nesdev,
944 perfect_filter_register_address+4+(mc_index * 8),
945 0);
7e36d3d7 946 nesadapter->pft_mcast_map[mc_index] = 255;
3c2d774c
GS		 947 }
948 }
fbf219f1 949 kfree(addrs);
7e36d3d7 950 /* PFT is not large enough */
fbf219f1
JP		 951 if (i < mc_count)
952 set_allmulti(nesdev, nic_active_bit);
3c2d774c 953 }
7e36d3d7 954
fbf219f1 955unlock:
7e36d3d7 956 spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
3c2d774c
GS		 957}
958
959
960/**
961 * nes_netdev_change_mtu
962 */
7495ab68 963static int nes_netdev_change_mtu(struct net_device *netdev, int new_mtu)
3c2d774c
GS		 964{
965 struct nes_vnic *nesvnic = netdev_priv(netdev);
7495ab68
GS		 966 struct nes_device *nesdev = nesvnic->nesdev;
967 int ret = 0;
968 u8 jumbomode = 0;
e0e31afb
BS		 969 u32 nic_active;
970 u32 nic_active_bit;
971 u32 uc_all_active;
972 u32 mc_all_active;
3c2d774c 973
7495ab68 974 if ((new_mtu < ETH_ZLEN) || (new_mtu > max_mtu))
3c2d774c
GS		 975 return -EINVAL;
976
7495ab68 977 netdev->mtu = new_mtu;
edd2fd64 978 nesvnic->max_frame_size = new_mtu + VLAN_ETH_HLEN;
3c2d774c
GS		 979
980 if (netdev->mtu > 1500) {
981 jumbomode=1;
982 }
7495ab68 983 nes_nic_init_timer_defaults(nesdev, jumbomode);
3c2d774c
GS		 984
985 if (netif_running(netdev)) {
e0e31afb
BS		 986 nic_active_bit = 1 << nesvnic->nic_index;
987 mc_all_active = nes_read_indexed(nesdev,
988 NES_IDX_NIC_MULTICAST_ALL) & nic_active_bit;
989 uc_all_active = nes_read_indexed(nesdev,
990 NES_IDX_NIC_UNICAST_ALL) & nic_active_bit;
991
3c2d774c
GS		 992 nes_netdev_stop(netdev);
993 nes_netdev_open(netdev);
e0e31afb
BS		 994
995 nic_active = nes_read_indexed(nesdev,
996 NES_IDX_NIC_MULTICAST_ALL);
997 nic_active |= mc_all_active;
998 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL,
999 nic_active);
1000
1001 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
1002 nic_active |= uc_all_active;
1003 nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
3c2d774c
GS		 1004 }
1005
1006 return ret;
1007}
1008
39942a02 1009
37dab411 1010static const char nes_ethtool_stringset[][ETH_GSTRING_LEN] = {
3c2d774c
GS		 1011 "Link Change Interrupts",
1012 "Linearized SKBs",
1013 "T/GSO Requests",
1014 "Pause Frames Sent",
1015 "Pause Frames Received",
1016 "Internal Routing Errors",
1017 "SQ SW Dropped SKBs",
3c2d774c
GS		 1018 "SQ Full",
1019 "Segmented TSO Requests",
1020 "Rx Symbol Errors",
1021 "Rx Jabber Errors",
1022 "Rx Oversized Frames",
1023 "Rx Short Frames",
39942a02
FL		 1024 "Rx Length Errors",
1025 "Rx CRC Errors",
1026 "Rx Port Discard",
3c2d774c
GS		 1027 "Endnode Rx Discards",
1028 "Endnode Rx Octets",
1029 "Endnode Rx Frames",
1030 "Endnode Tx Octets",
1031 "Endnode Tx Frames",
39942a02 1032 "Tx Errors",
3c2d774c
GS		 1033 "mh detected",
1034 "mh pauses",
1035 "Retransmission Count",
1036 "CM Connects",
1037 "CM Accepts",
1038 "Disconnects",
1039 "Connected Events",
1040 "Connect Requests",
1041 "CM Rejects",
1042 "ModifyQP Timeouts",
1043 "CreateQPs",
1044 "SW DestroyQPs",
1045 "DestroyQPs",
1046 "CM Closes",
1047 "CM Packets Sent",
1048 "CM Packets Bounced",
1049 "CM Packets Created",
1050 "CM Packets Rcvd",
1051 "CM Packets Dropped",
1052 "CM Packets Retrans",
1053 "CM Listens Created",
1054 "CM Listens Destroyed",
1055 "CM Backlog Drops",
1056 "CM Loopbacks",
1057 "CM Nodes Created",
1058 "CM Nodes Destroyed",
1059 "CM Accel Drops",
1060 "CM Resets Received",
39942a02
FL		 1061 "Free 4Kpbls",
1062 "Free 256pbls",
3c2d774c 1063 "Timer Inits",
37dab411
FL		 1064 "LRO aggregated",
1065 "LRO flushed",
1066 "LRO no_desc",
3c2d774c 1067};
37dab411 1068#define NES_ETHTOOL_STAT_COUNT ARRAY_SIZE(nes_ethtool_stringset)
3c2d774c
GS		 1069
1070/**
1071 * nes_netdev_get_rx_csum
1072 */
1073static u32 nes_netdev_get_rx_csum (struct net_device *netdev)
1074{
1075 struct nes_vnic *nesvnic = netdev_priv(netdev);
1076
1077 if (nesvnic->rx_checksum_disabled)
1078 return 0;
1079 else
1080 return 1;
1081}
1082
1083
1084/**
1085 * nes_netdev_set_rc_csum
1086 */
1087static int nes_netdev_set_rx_csum(struct net_device *netdev, u32 enable)
1088{
1089 struct nes_vnic *nesvnic = netdev_priv(netdev);
1090
1091 if (enable)
1092 nesvnic->rx_checksum_disabled = 0;
1093 else
1094 nesvnic->rx_checksum_disabled = 1;
1095 return 0;
1096}
1097
1098
1099/**
15f0a394 1100 * nes_netdev_get_sset_count
3c2d774c 1101 */
15f0a394 1102static int nes_netdev_get_sset_count(struct net_device *netdev, int stringset)
3c2d774c 1103{
15f0a394
BH		 1104 if (stringset == ETH_SS_STATS)
1105 return NES_ETHTOOL_STAT_COUNT;
1106 else
1107 return -EINVAL;
3c2d774c
GS		 1108}
1109
1110
1111/**
1112 * nes_netdev_get_strings
1113 */
1114static void nes_netdev_get_strings(struct net_device *netdev, u32 stringset,
1115 u8 *ethtool_strings)
1116{
1117 if (stringset == ETH_SS_STATS)
1118 memcpy(ethtool_strings,
1119 &nes_ethtool_stringset,
1120 sizeof(nes_ethtool_stringset));
1121}
1122
1123
1124/**
1125 * nes_netdev_get_ethtool_stats
1126 */
39942a02 1127
3c2d774c
GS		 1128static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
1129 struct ethtool_stats *target_ethtool_stats, u64 *target_stat_values)
1130{
1131 u64 u64temp;
1132 struct nes_vnic *nesvnic = netdev_priv(netdev);
1133 struct nes_device *nesdev = nesvnic->nesdev;
39942a02 1134 struct nes_adapter *nesadapter = nesdev->nesadapter;
3c2d774c
GS		 1135 u32 nic_count;
1136 u32 u32temp;
2869975c 1137 u32 index = 0;
3c2d774c
GS		 1138
1139 target_ethtool_stats->n_stats = NES_ETHTOOL_STAT_COUNT;
2869975c
FL		 1140 target_stat_values[index] = nesvnic->nesdev->link_status_interrupts;
1141 target_stat_values[++index] = nesvnic->linearized_skbs;
1142 target_stat_values[++index] = nesvnic->tso_requests;
3c2d774c
GS		 1143
1144 u32temp = nes_read_indexed(nesdev,
1145 NES_IDX_MAC_TX_PAUSE_FRAMES + (nesvnic->nesdev->mac_index*0x200));
1146 nesvnic->nesdev->mac_pause_frames_sent += u32temp;
2869975c 1147 target_stat_values[++index] = nesvnic->nesdev->mac_pause_frames_sent;
3c2d774c
GS		 1148
1149 u32temp = nes_read_indexed(nesdev,
1150 NES_IDX_MAC_RX_PAUSE_FRAMES + (nesvnic->nesdev->mac_index*0x200));
1151 nesvnic->nesdev->mac_pause_frames_received += u32temp;
1152
1153 u32temp = nes_read_indexed(nesdev,
1154 NES_IDX_PORT_RX_DISCARDS + (nesvnic->nesdev->mac_index*0x40));
1155 nesvnic->nesdev->port_rx_discards += u32temp;
1156 nesvnic->netstats.rx_dropped += u32temp;
1157
1158 u32temp = nes_read_indexed(nesdev,
1159 NES_IDX_PORT_TX_DISCARDS + (nesvnic->nesdev->mac_index*0x40));
1160 nesvnic->nesdev->port_tx_discards += u32temp;
1161 nesvnic->netstats.tx_dropped += u32temp;
1162
39942a02
FL		 1163 u32temp = nes_read_indexed(nesdev,
1164 NES_IDX_MAC_RX_SHORT_FRAMES + (nesvnic->nesdev->mac_index*0x200));
1165 nesvnic->netstats.rx_dropped += u32temp;
1166 nesvnic->nesdev->mac_rx_errors += u32temp;
1167 nesvnic->nesdev->mac_rx_short_frames += u32temp;
1168
1169 u32temp = nes_read_indexed(nesdev,
1170 NES_IDX_MAC_RX_OVERSIZED_FRAMES + (nesvnic->nesdev->mac_index*0x200));
1171 nesvnic->netstats.rx_dropped += u32temp;
1172 nesvnic->nesdev->mac_rx_errors += u32temp;
1173 nesvnic->nesdev->mac_rx_oversized_frames += u32temp;
1174
1175 u32temp = nes_read_indexed(nesdev,
1176 NES_IDX_MAC_RX_JABBER_FRAMES + (nesvnic->nesdev->mac_index*0x200));
1177 nesvnic->netstats.rx_dropped += u32temp;
1178 nesvnic->nesdev->mac_rx_errors += u32temp;
1179 nesvnic->nesdev->mac_rx_jabber_frames += u32temp;
1180
1181 u32temp = nes_read_indexed(nesdev,
1182 NES_IDX_MAC_RX_SYMBOL_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
1183 nesvnic->netstats.rx_dropped += u32temp;
1184 nesvnic->nesdev->mac_rx_errors += u32temp;
1185 nesvnic->nesdev->mac_rx_symbol_err_frames += u32temp;
1186
1187 u32temp = nes_read_indexed(nesdev,
1188 NES_IDX_MAC_RX_LENGTH_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
1189 nesvnic->netstats.rx_length_errors += u32temp;
1190 nesvnic->nesdev->mac_rx_errors += u32temp;
1191
1192 u32temp = nes_read_indexed(nesdev,
1193 NES_IDX_MAC_RX_CRC_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
1194 nesvnic->nesdev->mac_rx_errors += u32temp;
1195 nesvnic->nesdev->mac_rx_crc_errors += u32temp;
1196 nesvnic->netstats.rx_crc_errors += u32temp;
1197
1198 u32temp = nes_read_indexed(nesdev,
1199 NES_IDX_MAC_TX_ERRORS + (nesvnic->nesdev->mac_index*0x200));
1200 nesvnic->nesdev->mac_tx_errors += u32temp;
1201 nesvnic->netstats.tx_errors += u32temp;
1202
3c2d774c
GS		 1203 for (nic_count = 0; nic_count < NES_MAX_PORT_COUNT; nic_count++) {
1204 if (nesvnic->qp_nic_index[nic_count] == 0xf)
1205 break;
1206
1207 u32temp = nes_read_indexed(nesdev,
1208 NES_IDX_ENDNODE0_NSTAT_RX_DISCARD +
1209 (nesvnic->qp_nic_index[nic_count]*0x200));
1210 nesvnic->netstats.rx_dropped += u32temp;
1211 nesvnic->endnode_nstat_rx_discard += u32temp;
1212
1213 u64temp = (u64)nes_read_indexed(nesdev,
1214 NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_LO +
1215 (nesvnic->qp_nic_index[nic_count]*0x200));
1216 u64temp += ((u64)nes_read_indexed(nesdev,
1217 NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_HI +
1218 (nesvnic->qp_nic_index[nic_count]*0x200))) << 32;
1219
1220 nesvnic->endnode_nstat_rx_octets += u64temp;
1221 nesvnic->netstats.rx_bytes += u64temp;
1222
1223 u64temp = (u64)nes_read_indexed(nesdev,
1224 NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_LO +
1225 (nesvnic->qp_nic_index[nic_count]*0x200));
1226 u64temp += ((u64)nes_read_indexed(nesdev,
1227 NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_HI +
1228 (nesvnic->qp_nic_index[nic_count]*0x200))) << 32;
1229
1230 nesvnic->endnode_nstat_rx_frames += u64temp;
1231 nesvnic->netstats.rx_packets += u64temp;
1232
1233 u64temp = (u64)nes_read_indexed(nesdev,
1234 NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_LO +
1235 (nesvnic->qp_nic_index[nic_count]*0x200));
1236 u64temp += ((u64)nes_read_indexed(nesdev,
1237 NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_HI +
1238 (nesvnic->qp_nic_index[nic_count]*0x200))) << 32;
1239
1240 nesvnic->endnode_nstat_tx_octets += u64temp;
1241 nesvnic->netstats.tx_bytes += u64temp;
1242
1243 u64temp = (u64)nes_read_indexed(nesdev,
1244 NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_LO +
1245 (nesvnic->qp_nic_index[nic_count]*0x200));
1246 u64temp += ((u64)nes_read_indexed(nesdev,
1247 NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_HI +
1248 (nesvnic->qp_nic_index[nic_count]*0x200))) << 32;
1249
1250 nesvnic->endnode_nstat_tx_frames += u64temp;
1251 nesvnic->netstats.tx_packets += u64temp;
1252
1253 u32temp = nes_read_indexed(nesdev,
1254 NES_IDX_IPV4_TCP_REXMITS + (nesvnic->qp_nic_index[nic_count]*0x200));
1255 nesvnic->endnode_ipv4_tcp_retransmits += u32temp;
1256 }
1257
2869975c
FL		 1258 target_stat_values[++index] = nesvnic->nesdev->mac_pause_frames_received;
1259 target_stat_values[++index] = nesdev->nesadapter->nic_rx_eth_route_err;
1260 target_stat_values[++index] = nesvnic->tx_sw_dropped;
1261 target_stat_values[++index] = nesvnic->sq_full;
1262 target_stat_values[++index] = nesvnic->segmented_tso_requests;
1263 target_stat_values[++index] = nesvnic->nesdev->mac_rx_symbol_err_frames;
1264 target_stat_values[++index] = nesvnic->nesdev->mac_rx_jabber_frames;
1265 target_stat_values[++index] = nesvnic->nesdev->mac_rx_oversized_frames;
1266 target_stat_values[++index] = nesvnic->nesdev->mac_rx_short_frames;
39942a02
FL		 1267 target_stat_values[++index] = nesvnic->netstats.rx_length_errors;
1268 target_stat_values[++index] = nesvnic->nesdev->mac_rx_crc_errors;
1269 target_stat_values[++index] = nesvnic->nesdev->port_rx_discards;
2869975c
FL		 1270 target_stat_values[++index] = nesvnic->endnode_nstat_rx_discard;
1271 target_stat_values[++index] = nesvnic->endnode_nstat_rx_octets;
1272 target_stat_values[++index] = nesvnic->endnode_nstat_rx_frames;
1273 target_stat_values[++index] = nesvnic->endnode_nstat_tx_octets;
1274 target_stat_values[++index] = nesvnic->endnode_nstat_tx_frames;
39942a02 1275 target_stat_values[++index] = nesvnic->nesdev->mac_tx_errors;
2869975c
FL		 1276 target_stat_values[++index] = mh_detected;
1277 target_stat_values[++index] = mh_pauses_sent;
1278 target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits;
1279 target_stat_values[++index] = atomic_read(&cm_connects);
1280 target_stat_values[++index] = atomic_read(&cm_accepts);
1281 target_stat_values[++index] = atomic_read(&cm_disconnects);
1282 target_stat_values[++index] = atomic_read(&cm_connecteds);
1283 target_stat_values[++index] = atomic_read(&cm_connect_reqs);
1284 target_stat_values[++index] = atomic_read(&cm_rejects);
1285 target_stat_values[++index] = atomic_read(&mod_qp_timouts);
1286 target_stat_values[++index] = atomic_read(&qps_created);
1287 target_stat_values[++index] = atomic_read(&sw_qps_destroyed);
1288 target_stat_values[++index] = atomic_read(&qps_destroyed);
1289 target_stat_values[++index] = atomic_read(&cm_closes);
1290 target_stat_values[++index] = cm_packets_sent;
1291 target_stat_values[++index] = cm_packets_bounced;
1292 target_stat_values[++index] = cm_packets_created;
1293 target_stat_values[++index] = cm_packets_received;
1294 target_stat_values[++index] = cm_packets_dropped;
1295 target_stat_values[++index] = cm_packets_retrans;
6e10d2e4
FL		 1296 target_stat_values[++index] = atomic_read(&cm_listens_created);
1297 target_stat_values[++index] = atomic_read(&cm_listens_destroyed);
2869975c
FL		 1298 target_stat_values[++index] = cm_backlog_drops;
1299 target_stat_values[++index] = atomic_read(&cm_loopbacks);
1300 target_stat_values[++index] = atomic_read(&cm_nodes_created);
1301 target_stat_values[++index] = atomic_read(&cm_nodes_destroyed);
1302 target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts);
1303 target_stat_values[++index] = atomic_read(&cm_resets_recvd);
39942a02
FL		 1304 target_stat_values[++index] = nesadapter->free_4kpbl;
1305 target_stat_values[++index] = nesadapter->free_256pbl;
2869975c 1306 target_stat_values[++index] = int_mod_timer_init;
2869975c
FL		 1307 target_stat_values[++index] = nesvnic->lro_mgr.stats.aggregated;
1308 target_stat_values[++index] = nesvnic->lro_mgr.stats.flushed;
1309 target_stat_values[++index] = nesvnic->lro_mgr.stats.no_desc;
3c2d774c
GS		 1310}
1311
3c2d774c
GS		 1312/**
1313 * nes_netdev_get_drvinfo
1314 */
1315static void nes_netdev_get_drvinfo(struct net_device *netdev,
1316 struct ethtool_drvinfo *drvinfo)
1317{
1318 struct nes_vnic *nesvnic = netdev_priv(netdev);
0c93ae35 1319 struct nes_adapter *nesadapter = nesvnic->nesdev->nesadapter;
3c2d774c
GS		 1320
1321 strcpy(drvinfo->driver, DRV_NAME);
1322 strcpy(drvinfo->bus_info, pci_name(nesvnic->nesdev->pcidev));
0c93ae35
CT		 1323 sprintf(drvinfo->fw_version, "%u.%u", nesadapter->firmware_version>>16,
1324 nesadapter->firmware_version & 0x000000ff);
3c2d774c 1325 strcpy(drvinfo->version, DRV_VERSION);
3c2d774c
GS		 1326 drvinfo->testinfo_len = 0;
1327 drvinfo->eedump_len = 0;
1328 drvinfo->regdump_len = 0;
1329}
1330
1331
1332/**
1333 * nes_netdev_set_coalesce
1334 */
1335static int nes_netdev_set_coalesce(struct net_device *netdev,
1336 struct ethtool_coalesce *et_coalesce)
1337{
1338 struct nes_vnic *nesvnic = netdev_priv(netdev);
7495ab68 1339 struct nes_device *nesdev = nesvnic->nesdev;
3c2d774c
GS		 1340 struct nes_adapter *nesadapter = nesdev->nesadapter;
1341 struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
1342 unsigned long flags;
1343
7495ab68 1344 spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
3c2d774c 1345 if (et_coalesce->rx_max_coalesced_frames_low) {
7495ab68 1346 shared_timer->threshold_low = et_coalesce->rx_max_coalesced_frames_low;
3c2d774c
GS		 1347 }
1348 if (et_coalesce->rx_max_coalesced_frames_irq) {
1349 shared_timer->threshold_target = et_coalesce->rx_max_coalesced_frames_irq;
1350 }
1351 if (et_coalesce->rx_max_coalesced_frames_high) {
1352 shared_timer->threshold_high = et_coalesce->rx_max_coalesced_frames_high;
1353 }
1354 if (et_coalesce->rx_coalesce_usecs_low) {
1355 shared_timer->timer_in_use_min = et_coalesce->rx_coalesce_usecs_low;
1356 }
1357 if (et_coalesce->rx_coalesce_usecs_high) {
1358 shared_timer->timer_in_use_max = et_coalesce->rx_coalesce_usecs_high;
1359 }
1360 spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
1361
1362 /* using this to drive total interrupt moderation */
1363 nesadapter->et_rx_coalesce_usecs_irq = et_coalesce->rx_coalesce_usecs_irq;
1364 if (et_coalesce->use_adaptive_rx_coalesce) {
1365 nesadapter->et_use_adaptive_rx_coalesce = 1;
7495ab68 1366 nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT_DYNAMIC;
3c2d774c
GS		 1367 nesadapter->et_rx_coalesce_usecs_irq = 0;
1368 if (et_coalesce->pkt_rate_low) {
7495ab68 1369 nesadapter->et_pkt_rate_low = et_coalesce->pkt_rate_low;
3c2d774c
GS		 1370 }
1371 } else {
1372 nesadapter->et_use_adaptive_rx_coalesce = 0;
7495ab68 1373 nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT;
3c2d774c
GS		 1374 if (nesadapter->et_rx_coalesce_usecs_irq) {
1375 nes_write32(nesdev->regs+NES_PERIODIC_CONTROL,
1376 0x80000000 | ((u32)(nesadapter->et_rx_coalesce_usecs_irq*8)));
1377 }
1378 }
1379 return 0;
1380}
1381
1382
1383/**
1384 * nes_netdev_get_coalesce
1385 */
1386static int nes_netdev_get_coalesce(struct net_device *netdev,
1387 struct ethtool_coalesce *et_coalesce)
1388{
1389 struct nes_vnic *nesvnic = netdev_priv(netdev);
7495ab68 1390 struct nes_device *nesdev = nesvnic->nesdev;
3c2d774c
GS		 1391 struct nes_adapter *nesadapter = nesdev->nesadapter;
1392 struct ethtool_coalesce temp_et_coalesce;
1393 struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
1394 unsigned long flags;
1395
1396 memset(&temp_et_coalesce, 0, sizeof(temp_et_coalesce));
7495ab68
GS		 1397 temp_et_coalesce.rx_coalesce_usecs_irq = nesadapter->et_rx_coalesce_usecs_irq;
1398 temp_et_coalesce.use_adaptive_rx_coalesce = nesadapter->et_use_adaptive_rx_coalesce;
1399 temp_et_coalesce.rate_sample_interval = nesadapter->et_rate_sample_interval;
3c2d774c
GS		 1400 temp_et_coalesce.pkt_rate_low = nesadapter->et_pkt_rate_low;
1401 spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
7495ab68
GS		 1402 temp_et_coalesce.rx_max_coalesced_frames_low = shared_timer->threshold_low;
1403 temp_et_coalesce.rx_max_coalesced_frames_irq = shared_timer->threshold_target;
3c2d774c 1404 temp_et_coalesce.rx_max_coalesced_frames_high = shared_timer->threshold_high;
7495ab68 1405 temp_et_coalesce.rx_coalesce_usecs_low = shared_timer->timer_in_use_min;
3c2d774c
GS		 1406 temp_et_coalesce.rx_coalesce_usecs_high = shared_timer->timer_in_use_max;
1407 if (nesadapter->et_use_adaptive_rx_coalesce) {
1408 temp_et_coalesce.rx_coalesce_usecs_irq = shared_timer->timer_in_use;
1409 }
1410 spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
7495ab68 1411 memcpy(et_coalesce, &temp_et_coalesce, sizeof(*et_coalesce));
3c2d774c
GS		 1412 return 0;
1413}
1414
1415
1416/**
1417 * nes_netdev_get_pauseparam
1418 */
1419static void nes_netdev_get_pauseparam(struct net_device *netdev,
1420 struct ethtool_pauseparam *et_pauseparam)
1421{
1422 struct nes_vnic *nesvnic = netdev_priv(netdev);
1423
1424 et_pauseparam->autoneg = 0;
1425 et_pauseparam->rx_pause = (nesvnic->nesdev->disable_rx_flow_control == 0) ? 1:0;
1426 et_pauseparam->tx_pause = (nesvnic->nesdev->disable_tx_flow_control == 0) ? 1:0;
1427}
1428
1429
1430/**
1431 * nes_netdev_set_pauseparam
1432 */
1433static int nes_netdev_set_pauseparam(struct net_device *netdev,
1434 struct ethtool_pauseparam *et_pauseparam)
1435{
1436 struct nes_vnic *nesvnic = netdev_priv(netdev);
1437 struct nes_device *nesdev = nesvnic->nesdev;
1438 u32 u32temp;
1439
1440 if (et_pauseparam->autoneg) {
1441 /* TODO: should return unsupported */
1442 return 0;
1443 }
1444 if ((et_pauseparam->tx_pause == 1) && (nesdev->disable_tx_flow_control == 1)) {
1445 u32temp = nes_read_indexed(nesdev,
1446 NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200));
1447 u32temp |= NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE;
1448 nes_write_indexed(nesdev,
70c9db0f 1449 NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200), u32temp);
3c2d774c
GS		 1450 nesdev->disable_tx_flow_control = 0;
1451 } else if ((et_pauseparam->tx_pause == 0) && (nesdev->disable_tx_flow_control == 0)) {
1452 u32temp = nes_read_indexed(nesdev,
1453 NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200));
1454 u32temp &= ~NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE;
1455 nes_write_indexed(nesdev,
70c9db0f 1456 NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200), u32temp);
3c2d774c
GS		 1457 nesdev->disable_tx_flow_control = 1;
1458 }
1459 if ((et_pauseparam->rx_pause == 1) && (nesdev->disable_rx_flow_control == 1)) {
1460 u32temp = nes_read_indexed(nesdev,
1461 NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40));
1462 u32temp &= ~NES_IDX_MPP_DEBUG_PORT_DISABLE_PAUSE;
1463 nes_write_indexed(nesdev,
1464 NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40), u32temp);
1465 nesdev->disable_rx_flow_control = 0;
1466 } else if ((et_pauseparam->rx_pause == 0) && (nesdev->disable_rx_flow_control == 0)) {
1467 u32temp = nes_read_indexed(nesdev,
1468 NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40));
1469 u32temp |= NES_IDX_MPP_DEBUG_PORT_DISABLE_PAUSE;
1470 nes_write_indexed(nesdev,
1471 NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40), u32temp);
1472 nesdev->disable_rx_flow_control = 1;
1473 }
1474
1475 return 0;
1476}
1477
1478
1479/**
1480 * nes_netdev_get_settings
1481 */
1482static int nes_netdev_get_settings(struct net_device *netdev, struct ethtool_cmd *et_cmd)
1483{
1484 struct nes_vnic *nesvnic = netdev_priv(netdev);
1485 struct nes_device *nesdev = nesvnic->nesdev;
1486 struct nes_adapter *nesadapter = nesdev->nesadapter;
4303565d
CT		 1487 u32 mac_index = nesdev->mac_index;
1488 u8 phy_type = nesadapter->phy_type[mac_index];
1489 u8 phy_index = nesadapter->phy_index[mac_index];
3c2d774c
GS		 1490 u16 phy_data;
1491
1492 et_cmd->duplex = DUPLEX_FULL;
7495ab68 1493 et_cmd->port = PORT_MII;
4303565d
CT		 1494 et_cmd->maxtxpkt = 511;
1495 et_cmd->maxrxpkt = 511;
0e1de5d6 1496
3c2d774c 1497 if (nesadapter->OneG_Mode) {
3c2d774c 1498 et_cmd->speed = SPEED_1000;
4303565d 1499 if (phy_type == NES_PHY_TYPE_PUMA_1G) {
0e1de5d6
ES		 1500 et_cmd->supported = SUPPORTED_1000baseT_Full;
1501 et_cmd->advertising = ADVERTISED_1000baseT_Full;
1502 et_cmd->autoneg = AUTONEG_DISABLE;
1503 et_cmd->transceiver = XCVR_INTERNAL;
4303565d 1504 et_cmd->phy_address = mac_index;
3c2d774c 1505 } else {
ce6e74f2 1506 unsigned long flags;
4303565d
CT		 1507 et_cmd->supported = SUPPORTED_1000baseT_Full
1508 | SUPPORTED_Autoneg;
1509 et_cmd->advertising = ADVERTISED_1000baseT_Full
1510 | ADVERTISED_Autoneg;
ce6e74f2 1511 spin_lock_irqsave(&nesadapter->phy_lock, flags);
4303565d 1512 nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
ce6e74f2 1513 spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
0e1de5d6
ES		 1514 if (phy_data & 0x1000)
1515 et_cmd->autoneg = AUTONEG_ENABLE;
1516 else
1517 et_cmd->autoneg = AUTONEG_DISABLE;
1518 et_cmd->transceiver = XCVR_EXTERNAL;
4303565d 1519 et_cmd->phy_address = phy_index;
3c2d774c 1520 }
4303565d
CT		 1521 return 0;
1522 }
09124e19
CT		 1523 if ((phy_type == NES_PHY_TYPE_ARGUS) ||
1524 (phy_type == NES_PHY_TYPE_SFP_D) ||
1525 (phy_type == NES_PHY_TYPE_KR)) {
4303565d
CT		 1526 et_cmd->transceiver = XCVR_EXTERNAL;
1527 et_cmd->port = PORT_FIBRE;
1528 et_cmd->supported = SUPPORTED_FIBRE;
1529 et_cmd->advertising = ADVERTISED_FIBRE;
1530 et_cmd->phy_address = phy_index;
3c2d774c 1531 } else {
4303565d
CT		 1532 et_cmd->transceiver = XCVR_INTERNAL;
1533 et_cmd->supported = SUPPORTED_10000baseT_Full;
1534 et_cmd->advertising = ADVERTISED_10000baseT_Full;
1535 et_cmd->phy_address = mac_index;
3c2d774c 1536 }
4303565d
CT		 1537 et_cmd->speed = SPEED_10000;
1538 et_cmd->autoneg = AUTONEG_DISABLE;
3c2d774c
GS		 1539 return 0;
1540}
1541
1542
1543/**
1544 * nes_netdev_set_settings
1545 */
1546static int nes_netdev_set_settings(struct net_device *netdev, struct ethtool_cmd *et_cmd)
1547{
1548 struct nes_vnic *nesvnic = netdev_priv(netdev);
1549 struct nes_device *nesdev = nesvnic->nesdev;
1550 struct nes_adapter *nesadapter = nesdev->nesadapter;
3c2d774c 1551
0e1de5d6
ES		 1552 if ((nesadapter->OneG_Mode) &&
1553 (nesadapter->phy_type[nesdev->mac_index] != NES_PHY_TYPE_PUMA_1G)) {
ce6e74f2
CT		 1554 unsigned long flags;
1555 u16 phy_data;
1556 u8 phy_index = nesadapter->phy_index[nesdev->mac_index];
1557
1558 spin_lock_irqsave(&nesadapter->phy_lock, flags);
1559 nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
3c2d774c
GS		 1560 if (et_cmd->autoneg) {
1561 /* Turn on Full duplex, Autoneg, and restart autonegotiation */
1562 phy_data |= 0x1300;
1563 } else {
7495ab68 1564 /* Turn off autoneg */
3c2d774c
GS		 1565 phy_data &= ~0x1000;
1566 }
ce6e74f2
CT		 1567 nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data);
1568 spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
3c2d774c
GS		 1569 }
1570
1571 return 0;
1572}
1573
1574
39827be2
BH		 1575static int nes_netdev_set_flags(struct net_device *netdev, u32 flags)
1576{
1577 return ethtool_op_set_flags(netdev, flags, ETH_FLAG_LRO);
1578}
1579
1580
0fc0b732 1581static const struct ethtool_ops nes_ethtool_ops = {
3c2d774c
GS		 1582 .get_link = ethtool_op_get_link,
1583 .get_settings = nes_netdev_get_settings,
1584 .set_settings = nes_netdev_set_settings,
1585 .get_tx_csum = ethtool_op_get_tx_csum,
1586 .get_rx_csum = nes_netdev_get_rx_csum,
1587 .get_sg = ethtool_op_get_sg,
1588 .get_strings = nes_netdev_get_strings,
15f0a394 1589 .get_sset_count = nes_netdev_get_sset_count,
3c2d774c
GS		 1590 .get_ethtool_stats = nes_netdev_get_ethtool_stats,
1591 .get_drvinfo = nes_netdev_get_drvinfo,
1592 .get_coalesce = nes_netdev_get_coalesce,
1593 .set_coalesce = nes_netdev_set_coalesce,
1594 .get_pauseparam = nes_netdev_get_pauseparam,
1595 .set_pauseparam = nes_netdev_set_pauseparam,
1596 .set_tx_csum = ethtool_op_set_tx_csum,
1597 .set_rx_csum = nes_netdev_set_rx_csum,
1598 .set_sg = ethtool_op_set_sg,
1599 .get_tso = ethtool_op_get_tso,
1600 .set_tso = ethtool_op_set_tso,
37dab411 1601 .get_flags = ethtool_op_get_flags,
39827be2 1602 .set_flags = nes_netdev_set_flags,
3c2d774c
GS		 1603};
1604
1605
1606static void nes_netdev_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp)
1607{
1608 struct nes_vnic *nesvnic = netdev_priv(netdev);
1609 struct nes_device *nesdev = nesvnic->nesdev;
edd2fd64 1610 struct nes_adapter *nesadapter = nesdev->nesadapter;
3c2d774c 1611 u32 u32temp;
edd2fd64 1612 unsigned long flags;
3c2d774c 1613
edd2fd64 1614 spin_lock_irqsave(&nesadapter->phy_lock, flags);
3c2d774c
GS		 1615 nesvnic->vlan_grp = grp;
1616
edd2fd64
CT		 1617 nes_debug(NES_DBG_NETDEV, "%s: %s\n", __func__, netdev->name);
1618
3c2d774c
GS		 1619 /* Enable/Disable VLAN Stripping */
1620 u32temp = nes_read_indexed(nesdev, NES_IDX_PCIX_DIAG);
1621 if (grp)
1622 u32temp &= 0xfdffffff;
1623 else
1624 u32temp |= 0x02000000;
1625
1626 nes_write_indexed(nesdev, NES_IDX_PCIX_DIAG, u32temp);
edd2fd64 1627 spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
3c2d774c
GS		 1628}
1629
d0929553
SH		 1630static const struct net_device_ops nes_netdev_ops = {
1631 .ndo_open = nes_netdev_open,
1632 .ndo_stop = nes_netdev_stop,
1633 .ndo_start_xmit = nes_netdev_start_xmit,
1634 .ndo_get_stats = nes_netdev_get_stats,
1635 .ndo_tx_timeout = nes_netdev_tx_timeout,
1636 .ndo_set_mac_address = nes_netdev_set_mac_address,
1637 .ndo_set_multicast_list = nes_netdev_set_multicast_list,
1638 .ndo_change_mtu = nes_netdev_change_mtu,
d0929553
SH		 1639 .ndo_validate_addr = eth_validate_addr,
1640 .ndo_vlan_rx_register = nes_netdev_vlan_rx_register,
1641};
3c2d774c
GS		 1642
1643/**
1644 * nes_netdev_init - initialize network device
1645 */
1646struct net_device *nes_netdev_init(struct nes_device *nesdev,
1647 void __iomem *mmio_addr)
1648{
1649 u64 u64temp;
13220a94 1650 struct nes_vnic *nesvnic;
3c2d774c
GS		 1651 struct net_device *netdev;
1652 struct nic_qp_map *curr_qp_map;
09124e19 1653 u8 phy_type = nesdev->nesadapter->phy_type[nesdev->mac_index];
3c2d774c
GS		 1654
1655 netdev = alloc_etherdev(sizeof(struct nes_vnic));
1656 if (!netdev) {
1657 printk(KERN_ERR PFX "nesvnic etherdev alloc failed");
1658 return NULL;
1659 }
13220a94 1660 nesvnic = netdev_priv(netdev);
3c2d774c
GS		 1661
1662 nes_debug(NES_DBG_INIT, "netdev = %p, %s\n", netdev, netdev->name);
1663
1664 SET_NETDEV_DEV(netdev, &nesdev->pcidev->dev);
1665
3c2d774c
GS		 1666 netdev->watchdog_timeo = NES_TX_TIMEOUT;
1667 netdev->irq = nesdev->pcidev->irq;
1668 netdev->mtu = ETH_DATA_LEN;
1669 netdev->hard_header_len = ETH_HLEN;
1670 netdev->addr_len = ETH_ALEN;
1671 netdev->type = ARPHRD_ETHER;
1672 netdev->features = NETIF_F_HIGHDMA;
d0929553 1673 netdev->netdev_ops = &nes_netdev_ops;
3c2d774c
GS		 1674 netdev->ethtool_ops = &nes_ethtool_ops;
1675 netif_napi_add(netdev, &nesvnic->napi, nes_netdev_poll, 128);
1676 nes_debug(NES_DBG_INIT, "Enabling VLAN Insert/Delete.\n");
1677 netdev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
3c2d774c
GS		 1678
1679 /* Fill in the port structure */
1680 nesvnic->netdev = netdev;
1681 nesvnic->nesdev = nesdev;
1682 nesvnic->msg_enable = netif_msg_init(debug, default_msg);
1683 nesvnic->netdev_index = nesdev->netdev_count;
1684 nesvnic->perfect_filter_index = nesdev->nesadapter->netdev_count;
edd2fd64 1685 nesvnic->max_frame_size = netdev->mtu + netdev->hard_header_len + VLAN_HLEN;
3c2d774c
GS		 1686
1687 curr_qp_map = nic_qp_mapping_per_function[PCI_FUNC(nesdev->pcidev->devfn)];
1688 nesvnic->nic.qp_id = curr_qp_map[nesdev->netdev_count].qpid;
1689 nesvnic->nic_index = curr_qp_map[nesdev->netdev_count].nic_index;
1690 nesvnic->logical_port = curr_qp_map[nesdev->netdev_count].logical_port;
1691
1692 /* Setup the burned in MAC address */
1693 u64temp = (u64)nesdev->nesadapter->mac_addr_low;
1694 u64temp += ((u64)nesdev->nesadapter->mac_addr_high) << 32;
1695 u64temp += nesvnic->nic_index;
1696 netdev->dev_addr[0] = (u8)(u64temp>>40);
1697 netdev->dev_addr[1] = (u8)(u64temp>>32);
1698 netdev->dev_addr[2] = (u8)(u64temp>>24);
1699 netdev->dev_addr[3] = (u8)(u64temp>>16);
1700 netdev->dev_addr[4] = (u8)(u64temp>>8);
1701 netdev->dev_addr[5] = (u8)u64temp;
1702 memcpy(netdev->perm_addr, netdev->dev_addr, 6);
1703
1704 if ((nesvnic->logical_port < 2) || (nesdev->nesadapter->hw_rev != NE020_REV)) {
1705 netdev->features |= NETIF_F_TSO | NETIF_F_SG | NETIF_F_IP_CSUM;
1706 netdev->features |= NETIF_F_GSO | NETIF_F_TSO | NETIF_F_SG | NETIF_F_IP_CSUM;
1707 } else {
1708 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
1709 }
1710
1711 nes_debug(NES_DBG_INIT, "nesvnic = %p, reported features = 0x%lX, QPid = %d,"
1712 " nic_index = %d, logical_port = %d, mac_index = %d.\n",
1713 nesvnic, (unsigned long)netdev->features, nesvnic->nic.qp_id,
1714 nesvnic->nic_index, nesvnic->logical_port, nesdev->mac_index);
1715
7e36d3d7
VM		 1716 if (nesvnic->nesdev->nesadapter->port_count == 1 &&
1717 nesvnic->nesdev->nesadapter->adapter_fcn_count == 1) {
1718
3c2d774c
GS		 1719 nesvnic->qp_nic_index[0] = nesvnic->nic_index;
1720 nesvnic->qp_nic_index[1] = nesvnic->nic_index + 1;
1721 if (nes_drv_opt & NES_DRV_OPT_DUAL_LOGICAL_PORT) {
1722 nesvnic->qp_nic_index[2] = 0xf;
1723 nesvnic->qp_nic_index[3] = 0xf;
1724 } else {
1725 nesvnic->qp_nic_index[2] = nesvnic->nic_index + 2;
1726 nesvnic->qp_nic_index[3] = nesvnic->nic_index + 3;
1727 }
1728 } else {
7e36d3d7
VM		 1729 if (nesvnic->nesdev->nesadapter->port_count == 2 ||
1730 (nesvnic->nesdev->nesadapter->port_count == 1 &&
1731 nesvnic->nesdev->nesadapter->adapter_fcn_count == 2)) {
1732 nesvnic->qp_nic_index[0] = nesvnic->nic_index;
1733 nesvnic->qp_nic_index[1] = nesvnic->nic_index
1734 + 2;
1735 nesvnic->qp_nic_index[2] = 0xf;
1736 nesvnic->qp_nic_index[3] = 0xf;
3c2d774c
GS		 1737 } else {
1738 nesvnic->qp_nic_index[0] = nesvnic->nic_index;
1739 nesvnic->qp_nic_index[1] = 0xf;
1740 nesvnic->qp_nic_index[2] = 0xf;
1741 nesvnic->qp_nic_index[3] = 0xf;
1742 }
1743 }
1744 nesvnic->next_qp_nic_index = 0;
1745
1746 if (nesdev->netdev_count == 0) {
1747 nesvnic->rdma_enabled = 1;
1748 } else {
1749 nesvnic->rdma_enabled = 0;
1750 }
1751 nesvnic->nic_cq.cq_number = nesvnic->nic.qp_id;
1752 spin_lock_init(&nesvnic->tx_lock);
1753 nesdev->netdev[nesdev->netdev_count] = netdev;
1754
1755 nes_debug(NES_DBG_INIT, "Adding nesvnic (%p) to the adapters nesvnic_list for MAC%d.\n",
1756 nesvnic, nesdev->mac_index);
1757 list_add_tail(&nesvnic->list, &nesdev->nesadapter->nesvnic_list[nesdev->mac_index]);
1758
1759 if ((nesdev->netdev_count == 0) &&
0e1de5d6 1760 ((PCI_FUNC(nesdev->pcidev->devfn) == nesdev->mac_index) ||
09124e19 1761 ((phy_type == NES_PHY_TYPE_PUMA_1G) &&
0e1de5d6
ES		 1762 (((PCI_FUNC(nesdev->pcidev->devfn) == 1) && (nesdev->mac_index == 2)) ||
1763 ((PCI_FUNC(nesdev->pcidev->devfn) == 2) && (nesdev->mac_index == 1)))))) {
a72042c0
CT		 1764 u32 u32temp;
1765 u32 link_mask;
1766 u32 link_val;
1767
3c2d774c 1768 u32temp = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 +
0e1de5d6 1769 (0x200 * (nesdev->mac_index & 1)));
09124e19 1770 if (phy_type != NES_PHY_TYPE_PUMA_1G) {
0e1de5d6
ES		 1771 u32temp |= 0x00200000;
1772 nes_write_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 +
1773 (0x200 * (nesdev->mac_index & 1)), u32temp);
1774 }
1775
a72042c0
CT		 1776 /* Check and set linkup here. This is for back to back */
1777 /* configuration where second port won't get link interrupt */
1778 switch (phy_type) {
1779 case NES_PHY_TYPE_PUMA_1G:
1780 if (nesdev->mac_index < 2) {
1781 link_mask = 0x01010000;
1782 link_val = 0x01010000;
1783 } else {
1784 link_mask = 0x02020000;
1785 link_val = 0x02020000;
1786 }
1787 break;
1788 default:
1789 link_mask = 0x0f1f0000;
1790 link_val = 0x0f0f0000;
1791 break;
1792 }
1793
1794 u32temp = nes_read_indexed(nesdev,
1795 NES_IDX_PHY_PCS_CONTROL_STATUS0 +
1796 (0x200 * (nesdev->mac_index & 1)));
1797 if ((u32temp & link_mask) == link_val)
1798 nesvnic->linkup = 1;
1799
3c2d774c 1800 /* clear the MAC interrupt status, assumes direct logical to physical mapping */
11e0704b 1801 u32temp = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (0x200 * nesdev->mac_index));
3c2d774c 1802 nes_debug(NES_DBG_INIT, "Phy interrupt status = 0x%X.\n", u32temp);
11e0704b 1803 nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (0x200 * nesdev->mac_index), u32temp);
3c2d774c 1804
09124e19 1805 nes_init_phy(nesdev);
3c2d774c
GS		 1806 }
1807
1808 return netdev;
1809}
1810
1811
1812/**
1813 * nes_netdev_destroy - destroy network device structure
1814 */
1815void nes_netdev_destroy(struct net_device *netdev)
1816{
1817 struct nes_vnic *nesvnic = netdev_priv(netdev);
1818
1819 /* make sure 'stop' method is called by Linux stack */
1820 /* nes_netdev_stop(netdev); */
1821
1822 list_del(&nesvnic->list);
1823
1824 if (nesvnic->of_device_registered) {
1825 nes_destroy_ofa_device(nesvnic->nesibdev);
1826 }
1827
1828 free_netdev(netdev);
1829}
1830
1831
1832/**
1833 * nes_nic_cm_xmit -- CM calls this to send out pkts
1834 */
1835int nes_nic_cm_xmit(struct sk_buff *skb, struct net_device *netdev)
1836{
1837 int ret;
1838
1839 skb->dev = netdev;
1840 ret = dev_queue_xmit(skb);
1841 if (ret) {
1842 nes_debug(NES_DBG_CM, "Bad return code from dev_queue_xmit %d\n", ret);
1843 }
1844
1845 return ret;
1846}
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