1/* 2 * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved. 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> 43#include <linux/slab.h> 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; 95static int nics_per_function = 1; 96 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); 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) { 115 napi_complete(napi); 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; 143 struct nes_vnic *first_nesvnic = NULL; 144 u32 nic_active_bit; 145 u32 nic_active; 146 struct list_head *list_pos, *list_temp; 147 unsigned long flags; 148 149 assert(nesdev != NULL); 150 151 if (nesvnic->netdev_open == 1) 152 return 0; 153 154 if (netif_msg_ifup(nesvnic)) 155 printk(KERN_INFO PFX "%s: enabling interface\n", netdev->name); 156 157 ret = nes_init_nic_qp(nesdev, netdev); 158 if (ret) { 159 return ret; 160 } 161 162 netif_carrier_off(netdev); 163 netif_stop_queue(netdev); 164 165 if ((!nesvnic->of_device_registered) && (nesvnic->rdma_enabled)) { 166 nesvnic->nesibdev = nes_init_ofa_device(netdev); 167 if (nesvnic->nesibdev == NULL) { 168 printk(KERN_ERR PFX "%s: nesvnic->nesibdev alloc failed", netdev->name); 169 } else { 170 nesvnic->nesibdev->nesvnic = nesvnic; 171 ret = nes_register_ofa_device(nesvnic->nesibdev); 172 if (ret) { 173 printk(KERN_ERR PFX "%s: Unable to register RDMA device, ret = %d\n", 174 netdev->name, ret); 175 } 176 } 177 } 178 /* Set packet filters */ 179 nic_active_bit = 1 << nesvnic->nic_index; 180 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_ACTIVE); 181 nic_active |= nic_active_bit; 182 nes_write_indexed(nesdev, NES_IDX_NIC_ACTIVE, nic_active); 183 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE); 184 nic_active |= nic_active_bit; 185 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE, nic_active); 186 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON); 187 nic_active |= nic_active_bit; 188 nes_write_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON, nic_active); 189 190 macaddr_high = ((u16)netdev->dev_addr[0]) << 8; 191 macaddr_high += (u16)netdev->dev_addr[1]; 192 193 macaddr_low = ((u32)netdev->dev_addr[2]) << 24; 194 macaddr_low += ((u32)netdev->dev_addr[3]) << 16; 195 macaddr_low += ((u32)netdev->dev_addr[4]) << 8; 196 macaddr_low += (u32)netdev->dev_addr[5]; 197 198 /* Program the various MAC regs */ 199 for (i = 0; i < NES_MAX_PORT_COUNT; i++) { 200 if (nesvnic->qp_nic_index[i] == 0xf) { 201 break; 202 } 203 nes_debug(NES_DBG_NETDEV, "i=%d, perfect filter table index= %d, PERF FILTER LOW" 204 " (Addr:%08X) = %08X, HIGH = %08X.\n", 205 i, nesvnic->qp_nic_index[i], 206 NES_IDX_PERFECT_FILTER_LOW+ 207 (nesvnic->qp_nic_index[i] * 8), 208 macaddr_low, 209 (u32)macaddr_high | NES_MAC_ADDR_VALID | 210 ((((u32)nesvnic->nic_index) << 16))); 211 nes_write_indexed(nesdev, 212 NES_IDX_PERFECT_FILTER_LOW + (nesvnic->qp_nic_index[i] * 8), 213 macaddr_low); 214 nes_write_indexed(nesdev, 215 NES_IDX_PERFECT_FILTER_HIGH + (nesvnic->qp_nic_index[i] * 8), 216 (u32)macaddr_high | NES_MAC_ADDR_VALID | 217 ((((u32)nesvnic->nic_index) << 16))); 218 } 219 220 221 nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT | 222 nesvnic->nic_cq.cq_number); 223 nes_read32(nesdev->regs+NES_CQE_ALLOC); 224 list_for_each_safe(list_pos, list_temp, &nesdev->nesadapter->nesvnic_list[nesdev->mac_index]) { 225 first_nesvnic = container_of(list_pos, struct nes_vnic, list); 226 if (first_nesvnic->netdev_open == 1) 227 break; 228 } 229 if (first_nesvnic->netdev_open == 0) { 230 nes_debug(NES_DBG_INIT, "Setting up MAC interrupt mask.\n"); 231 nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK + (0x200 * nesdev->mac_index), 232 ~(NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT | 233 NES_MAC_INT_TX_UNDERFLOW | NES_MAC_INT_TX_ERROR)); 234 first_nesvnic = nesvnic; 235 } 236 237 if (first_nesvnic->linkup) { 238 /* Enable network packets */ 239 nesvnic->linkup = 1; 240 netif_start_queue(netdev); 241 netif_carrier_on(netdev); 242 } 243 244 spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags); 245 if (nesdev->nesadapter->phy_type[nesdev->mac_index] == NES_PHY_TYPE_SFP_D) { 246 nesdev->link_recheck = 1; 247 mod_delayed_work(system_wq, &nesdev->work, 248 NES_LINK_RECHECK_DELAY); 249 } 250 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags); 251 252 spin_lock_irqsave(&nesvnic->port_ibevent_lock, flags); 253 if (nesvnic->of_device_registered) { 254 nesdev->nesadapter->send_term_ok = 1; 255 if (nesvnic->linkup == 1) { 256 if (nesdev->iw_status == 0) { 257 nesdev->iw_status = 1; 258 nes_port_ibevent(nesvnic); 259 } 260 } else { 261 nesdev->iw_status = 0; 262 } 263 } 264 spin_unlock_irqrestore(&nesvnic->port_ibevent_lock, flags); 265 266 napi_enable(&nesvnic->napi); 267 nesvnic->netdev_open = 1; 268 269 return 0; 270} 271 272 273/** 274 * nes_netdev_stop 275 */ 276static int nes_netdev_stop(struct net_device *netdev) 277{ 278 struct nes_vnic *nesvnic = netdev_priv(netdev); 279 struct nes_device *nesdev = nesvnic->nesdev; 280 u32 nic_active_mask; 281 u32 nic_active; 282 struct nes_vnic *first_nesvnic = NULL; 283 struct list_head *list_pos, *list_temp; 284 unsigned long flags; 285 286 nes_debug(NES_DBG_SHUTDOWN, "nesvnic=%p, nesdev=%p, netdev=%p %s\n", 287 nesvnic, nesdev, netdev, netdev->name); 288 if (nesvnic->netdev_open == 0) 289 return 0; 290 291 if (netif_msg_ifdown(nesvnic)) 292 printk(KERN_INFO PFX "%s: disabling interface\n", netdev->name); 293 netif_carrier_off(netdev); 294 295 /* Disable network packets */ 296 napi_disable(&nesvnic->napi); 297 netif_stop_queue(netdev); 298 list_for_each_safe(list_pos, list_temp, &nesdev->nesadapter->nesvnic_list[nesdev->mac_index]) { 299 first_nesvnic = container_of(list_pos, struct nes_vnic, list); 300 if ((first_nesvnic->netdev_open == 1) && (first_nesvnic != nesvnic)) 301 break; 302 } 303 304 if ((first_nesvnic->netdev_open == 1) && (first_nesvnic != nesvnic) && 305 (PCI_FUNC(first_nesvnic->nesdev->pcidev->devfn) != 306 PCI_FUNC(nesvnic->nesdev->pcidev->devfn))) { 307 nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK+ 308 (0x200*nesdev->mac_index), 0xffffffff); 309 nes_write_indexed(first_nesvnic->nesdev, 310 NES_IDX_MAC_INT_MASK+ 311 (0x200*first_nesvnic->nesdev->mac_index), 312 ~(NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT | 313 NES_MAC_INT_TX_UNDERFLOW | NES_MAC_INT_TX_ERROR)); 314 } else { 315 nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK+(0x200*nesdev->mac_index), 0xffffffff); 316 } 317 318 nic_active_mask = ~((u32)(1 << nesvnic->nic_index)); 319 nes_write_indexed(nesdev, NES_IDX_PERFECT_FILTER_HIGH+ 320 (nesvnic->perfect_filter_index*8), 0); 321 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_ACTIVE); 322 nic_active &= nic_active_mask; 323 nes_write_indexed(nesdev, NES_IDX_NIC_ACTIVE, nic_active); 324 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL); 325 nic_active &= nic_active_mask; 326 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active); 327 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE); 328 nic_active &= nic_active_mask; 329 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE, nic_active); 330 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL); 331 nic_active &= nic_active_mask; 332 nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active); 333 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON); 334 nic_active &= nic_active_mask; 335 nes_write_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON, nic_active); 336 337 spin_lock_irqsave(&nesvnic->port_ibevent_lock, flags); 338 if (nesvnic->of_device_registered) { 339 nesdev->nesadapter->send_term_ok = 0; 340 nesdev->iw_status = 0; 341 if (nesvnic->linkup == 1) 342 nes_port_ibevent(nesvnic); 343 } 344 del_timer_sync(&nesvnic->event_timer); 345 nesvnic->event_timer.function = NULL; 346 spin_unlock_irqrestore(&nesvnic->port_ibevent_lock, flags); 347 348 nes_destroy_nic_qp(nesvnic); 349 350 nesvnic->netdev_open = 0; 351 352 return 0; 353} 354 355 356/** 357 * nes_nic_send 358 */ 359static int nes_nic_send(struct sk_buff *skb, struct net_device *netdev) 360{ 361 struct nes_vnic *nesvnic = netdev_priv(netdev); 362 struct nes_device *nesdev = nesvnic->nesdev; 363 struct nes_hw_nic *nesnic = &nesvnic->nic; 364 struct nes_hw_nic_sq_wqe *nic_sqe; 365 struct tcphdr *tcph; 366 __le16 *wqe_fragment_length; 367 u32 wqe_misc; 368 u16 wqe_fragment_index = 1; /* first fragment (0) is used by copy buffer */ 369 u16 skb_fragment_index; 370 dma_addr_t bus_address; 371 372 nic_sqe = &nesnic->sq_vbase[nesnic->sq_head]; 373 wqe_fragment_length = (__le16 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX]; 374 375 /* setup the VLAN tag if present */ 376 if (skb_vlan_tag_present(skb)) { 377 nes_debug(NES_DBG_NIC_TX, "%s: VLAN packet to send... VLAN = %08X\n", 378 netdev->name, skb_vlan_tag_get(skb)); 379 wqe_misc = NES_NIC_SQ_WQE_TAGVALUE_ENABLE; 380 wqe_fragment_length[0] = (__force __le16) skb_vlan_tag_get(skb); 381 } else 382 wqe_misc = 0; 383 384 /* bump past the vlan tag */ 385 wqe_fragment_length++; 386 /* wqe_fragment_address = (u64 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX]; */ 387 wqe_misc |= NES_NIC_SQ_WQE_COMPLETION; 388 389 if (skb->ip_summed == CHECKSUM_PARTIAL) { 390 if (skb_is_gso(skb)) { 391 tcph = tcp_hdr(skb); 392 /* nes_debug(NES_DBG_NIC_TX, "%s: TSO request... is_gso = %u seg size = %u\n", 393 netdev->name, skb_is_gso(skb), skb_shinfo(skb)->gso_size); */ 394 wqe_misc |= NES_NIC_SQ_WQE_LSO_ENABLE | (u16)skb_shinfo(skb)->gso_size; 395 set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_LSO_INFO_IDX, 396 ((u32)tcph->doff) | 397 (((u32)(((unsigned char *)tcph) - skb->data)) << 4)); 398 } 399 } else { /* CHECKSUM_HW */ 400 wqe_misc |= NES_NIC_SQ_WQE_DISABLE_CHKSUM; 401 } 402 403 set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_TOTAL_LENGTH_IDX, 404 skb->len); 405 memcpy(&nesnic->first_frag_vbase[nesnic->sq_head].buffer, 406 skb->data, min(((unsigned int)NES_FIRST_FRAG_SIZE), skb_headlen(skb))); 407 wqe_fragment_length[0] = cpu_to_le16(min(((unsigned int)NES_FIRST_FRAG_SIZE), 408 skb_headlen(skb))); 409 wqe_fragment_length[1] = 0; 410 if (skb_headlen(skb) > NES_FIRST_FRAG_SIZE) { 411 if ((skb_shinfo(skb)->nr_frags + 1) > 4) { 412 nes_debug(NES_DBG_NIC_TX, "%s: Packet with %u fragments not sent, skb_headlen=%u\n", 413 netdev->name, skb_shinfo(skb)->nr_frags + 2, skb_headlen(skb)); 414 kfree_skb(skb); 415 nesvnic->tx_sw_dropped++; 416 return NETDEV_TX_LOCKED; 417 } 418 set_bit(nesnic->sq_head, nesnic->first_frag_overflow); 419 bus_address = pci_map_single(nesdev->pcidev, skb->data + NES_FIRST_FRAG_SIZE, 420 skb_headlen(skb) - NES_FIRST_FRAG_SIZE, PCI_DMA_TODEVICE); 421 wqe_fragment_length[wqe_fragment_index++] = 422 cpu_to_le16(skb_headlen(skb) - NES_FIRST_FRAG_SIZE); 423 wqe_fragment_length[wqe_fragment_index] = 0; 424 set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG1_LOW_IDX, 425 ((u64)(bus_address))); 426 nesnic->tx_skb[nesnic->sq_head] = skb; 427 } 428 429 if (skb_headlen(skb) == skb->len) { 430 if (skb_headlen(skb) <= NES_FIRST_FRAG_SIZE) { 431 nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_2_1_IDX] = 0; 432 nesnic->tx_skb[nesnic->sq_head] = skb; 433 } 434 } else { 435 /* Deal with Fragments */ 436 nesnic->tx_skb[nesnic->sq_head] = skb; 437 for (skb_fragment_index = 0; skb_fragment_index < skb_shinfo(skb)->nr_frags; 438 skb_fragment_index++) { 439 skb_frag_t *frag = 440 &skb_shinfo(skb)->frags[skb_fragment_index]; 441 bus_address = skb_frag_dma_map(&nesdev->pcidev->dev, 442 frag, 0, skb_frag_size(frag), 443 DMA_TO_DEVICE); 444 wqe_fragment_length[wqe_fragment_index] = 445 cpu_to_le16(skb_frag_size(&skb_shinfo(skb)->frags[skb_fragment_index])); 446 set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG0_LOW_IDX+(2*wqe_fragment_index), 447 bus_address); 448 wqe_fragment_index++; 449 if (wqe_fragment_index < 5) 450 wqe_fragment_length[wqe_fragment_index] = 0; 451 } 452 } 453 454 set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_MISC_IDX, wqe_misc); 455 nesnic->sq_head++; 456 nesnic->sq_head &= nesnic->sq_size - 1; 457 458 return NETDEV_TX_OK; 459} 460 461 462/** 463 * nes_netdev_start_xmit 464 */ 465static int nes_netdev_start_xmit(struct sk_buff *skb, struct net_device *netdev) 466{ 467 struct nes_vnic *nesvnic = netdev_priv(netdev); 468 struct nes_device *nesdev = nesvnic->nesdev; 469 struct nes_hw_nic *nesnic = &nesvnic->nic; 470 struct nes_hw_nic_sq_wqe *nic_sqe; 471 struct tcphdr *tcph; 472 /* struct udphdr *udph; */ 473#define NES_MAX_TSO_FRAGS MAX_SKB_FRAGS 474 /* 64K segment plus overflow on each side */ 475 dma_addr_t tso_bus_address[NES_MAX_TSO_FRAGS]; 476 dma_addr_t bus_address; 477 u32 tso_frag_index; 478 u32 tso_frag_count; 479 u32 tso_wqe_length; 480 u32 curr_tcp_seq; 481 u32 wqe_count=1; 482 u32 send_rc; 483 struct iphdr *iph; 484 __le16 *wqe_fragment_length; 485 u32 nr_frags; 486 u32 original_first_length; 487 /* u64 *wqe_fragment_address; */ 488 /* first fragment (0) is used by copy buffer */ 489 u16 wqe_fragment_index=1; 490 u16 hoffset; 491 u16 nhoffset; 492 u16 wqes_needed; 493 u16 wqes_available; 494 u32 wqe_misc; 495 496 /* 497 * nes_debug(NES_DBG_NIC_TX, "%s Request to tx NIC packet length %u, headlen %u," 498 * " (%u frags), tso_size=%u\n", 499 * netdev->name, skb->len, skb_headlen(skb), 500 * skb_shinfo(skb)->nr_frags, skb_is_gso(skb)); 501 */ 502 503 if (!netif_carrier_ok(netdev)) 504 return NETDEV_TX_OK; 505 506 if (netif_queue_stopped(netdev)) 507 return NETDEV_TX_BUSY; 508 509 /* Check if SQ is full */ 510 if ((((nesnic->sq_tail+(nesnic->sq_size*2))-nesnic->sq_head) & (nesnic->sq_size - 1)) == 1) { 511 if (!netif_queue_stopped(netdev)) { 512 netif_stop_queue(netdev); 513 barrier(); 514 if ((((((volatile u16)nesnic->sq_tail)+(nesnic->sq_size*2))-nesnic->sq_head) & (nesnic->sq_size - 1)) != 1) { 515 netif_start_queue(netdev); 516 goto sq_no_longer_full; 517 } 518 } 519 nesvnic->sq_full++; 520 return NETDEV_TX_BUSY; 521 } 522 523sq_no_longer_full: 524 nr_frags = skb_shinfo(skb)->nr_frags; 525 if (skb_headlen(skb) > NES_FIRST_FRAG_SIZE) { 526 nr_frags++; 527 } 528 /* Check if too many fragments */ 529 if (unlikely((nr_frags > 4))) { 530 if (skb_is_gso(skb)) { 531 nesvnic->segmented_tso_requests++; 532 nesvnic->tso_requests++; 533 /* Basically 4 fragments available per WQE with extended fragments */ 534 wqes_needed = nr_frags >> 2; 535 wqes_needed += (nr_frags&3)?1:0; 536 wqes_available = (((nesnic->sq_tail+nesnic->sq_size)-nesnic->sq_head) - 1) & 537 (nesnic->sq_size - 1); 538 539 if (unlikely(wqes_needed > wqes_available)) { 540 if (!netif_queue_stopped(netdev)) { 541 netif_stop_queue(netdev); 542 barrier(); 543 wqes_available = (((((volatile u16)nesnic->sq_tail)+nesnic->sq_size)-nesnic->sq_head) - 1) & 544 (nesnic->sq_size - 1); 545 if (wqes_needed <= wqes_available) { 546 netif_start_queue(netdev); 547 goto tso_sq_no_longer_full; 548 } 549 } 550 nesvnic->sq_full++; 551 nes_debug(NES_DBG_NIC_TX, "%s: HNIC SQ full- TSO request has too many frags!\n", 552 netdev->name); 553 return NETDEV_TX_BUSY; 554 } 555tso_sq_no_longer_full: 556 /* Map all the buffers */ 557 for (tso_frag_count=0; tso_frag_count < skb_shinfo(skb)->nr_frags; 558 tso_frag_count++) { 559 skb_frag_t *frag = 560 &skb_shinfo(skb)->frags[tso_frag_count]; 561 tso_bus_address[tso_frag_count] = 562 skb_frag_dma_map(&nesdev->pcidev->dev, 563 frag, 0, skb_frag_size(frag), 564 DMA_TO_DEVICE); 565 } 566 567 tso_frag_index = 0; 568 curr_tcp_seq = ntohl(tcp_hdr(skb)->seq); 569 hoffset = skb_transport_header(skb) - skb->data; 570 nhoffset = skb_network_header(skb) - skb->data; 571 original_first_length = hoffset + ((((struct tcphdr *)skb_transport_header(skb))->doff)<<2); 572 573 for (wqe_count=0; wqe_count<((u32)wqes_needed); wqe_count++) { 574 tso_wqe_length = 0; 575 nic_sqe = &nesnic->sq_vbase[nesnic->sq_head]; 576 wqe_fragment_length = 577 (__le16 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX]; 578 /* setup the VLAN tag if present */ 579 if (skb_vlan_tag_present(skb)) { 580 nes_debug(NES_DBG_NIC_TX, "%s: VLAN packet to send... VLAN = %08X\n", 581 netdev->name, 582 skb_vlan_tag_get(skb)); 583 wqe_misc = NES_NIC_SQ_WQE_TAGVALUE_ENABLE; 584 wqe_fragment_length[0] = (__force __le16) skb_vlan_tag_get(skb); 585 } else 586 wqe_misc = 0; 587 588 /* bump past the vlan tag */ 589 wqe_fragment_length++; 590 591 /* Assumes header totally fits in allocated buffer and is in first fragment */ 592 if (original_first_length > NES_FIRST_FRAG_SIZE) { 593 nes_debug(NES_DBG_NIC_TX, "ERROR: SKB header too big, headlen=%u, FIRST_FRAG_SIZE=%u\n", 594 original_first_length, NES_FIRST_FRAG_SIZE); 595 nes_debug(NES_DBG_NIC_TX, "%s Request to tx NIC packet length %u, headlen %u," 596 " (%u frags), is_gso = %u tso_size=%u\n", 597 netdev->name, 598 skb->len, skb_headlen(skb), 599 skb_shinfo(skb)->nr_frags, skb_is_gso(skb), skb_shinfo(skb)->gso_size); 600 } 601 memcpy(&nesnic->first_frag_vbase[nesnic->sq_head].buffer, 602 skb->data, min(((unsigned int)NES_FIRST_FRAG_SIZE), 603 original_first_length)); 604 iph = (struct iphdr *) 605 (&nesnic->first_frag_vbase[nesnic->sq_head].buffer[nhoffset]); 606 tcph = (struct tcphdr *) 607 (&nesnic->first_frag_vbase[nesnic->sq_head].buffer[hoffset]); 608 if ((wqe_count+1)!=(u32)wqes_needed) { 609 tcph->fin = 0; 610 tcph->psh = 0; 611 tcph->rst = 0; 612 tcph->urg = 0; 613 } 614 if (wqe_count) { 615 tcph->syn = 0; 616 } 617 tcph->seq = htonl(curr_tcp_seq); 618 wqe_fragment_length[0] = cpu_to_le16(min(((unsigned int)NES_FIRST_FRAG_SIZE), 619 original_first_length)); 620 621 wqe_fragment_index = 1; 622 if ((wqe_count==0) && (skb_headlen(skb) > original_first_length)) { 623 set_bit(nesnic->sq_head, nesnic->first_frag_overflow); 624 bus_address = pci_map_single(nesdev->pcidev, skb->data + original_first_length, 625 skb_headlen(skb) - original_first_length, PCI_DMA_TODEVICE); 626 wqe_fragment_length[wqe_fragment_index++] = 627 cpu_to_le16(skb_headlen(skb) - original_first_length); 628 wqe_fragment_length[wqe_fragment_index] = 0; 629 set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG1_LOW_IDX, 630 bus_address); 631 tso_wqe_length += skb_headlen(skb) - 632 original_first_length; 633 } 634 while (wqe_fragment_index < 5) { 635 wqe_fragment_length[wqe_fragment_index] = 636 cpu_to_le16(skb_frag_size(&skb_shinfo(skb)->frags[tso_frag_index])); 637 set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG0_LOW_IDX+(2*wqe_fragment_index), 638 (u64)tso_bus_address[tso_frag_index]); 639 wqe_fragment_index++; 640 tso_wqe_length += skb_frag_size(&skb_shinfo(skb)->frags[tso_frag_index++]); 641 if (wqe_fragment_index < 5) 642 wqe_fragment_length[wqe_fragment_index] = 0; 643 if (tso_frag_index == tso_frag_count) 644 break; 645 } 646 if ((wqe_count+1) == (u32)wqes_needed) { 647 nesnic->tx_skb[nesnic->sq_head] = skb; 648 } else { 649 nesnic->tx_skb[nesnic->sq_head] = NULL; 650 } 651 wqe_misc |= NES_NIC_SQ_WQE_COMPLETION | (u16)skb_shinfo(skb)->gso_size; 652 if ((tso_wqe_length + original_first_length) > skb_shinfo(skb)->gso_size) { 653 wqe_misc |= NES_NIC_SQ_WQE_LSO_ENABLE; 654 } else { 655 iph->tot_len = htons(tso_wqe_length + original_first_length - nhoffset); 656 } 657 658 set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_MISC_IDX, 659 wqe_misc); 660 set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_LSO_INFO_IDX, 661 ((u32)tcph->doff) | (((u32)hoffset) << 4)); 662 663 set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_TOTAL_LENGTH_IDX, 664 tso_wqe_length + original_first_length); 665 curr_tcp_seq += tso_wqe_length; 666 nesnic->sq_head++; 667 nesnic->sq_head &= nesnic->sq_size-1; 668 } 669 } else { 670 nesvnic->linearized_skbs++; 671 hoffset = skb_transport_header(skb) - skb->data; 672 nhoffset = skb_network_header(skb) - skb->data; 673 skb_linearize(skb); 674 skb_set_transport_header(skb, hoffset); 675 skb_set_network_header(skb, nhoffset); 676 send_rc = nes_nic_send(skb, netdev); 677 if (send_rc != NETDEV_TX_OK) 678 return NETDEV_TX_OK; 679 } 680 } else { 681 send_rc = nes_nic_send(skb, netdev); 682 if (send_rc != NETDEV_TX_OK) 683 return NETDEV_TX_OK; 684 } 685 686 barrier(); 687 688 if (wqe_count) 689 nes_write32(nesdev->regs+NES_WQE_ALLOC, 690 (wqe_count << 24) | (1 << 23) | nesvnic->nic.qp_id); 691 692 netdev->trans_start = jiffies; 693 694 return NETDEV_TX_OK; 695} 696 697 698/** 699 * nes_netdev_get_stats 700 */ 701static struct net_device_stats *nes_netdev_get_stats(struct net_device *netdev) 702{ 703 struct nes_vnic *nesvnic = netdev_priv(netdev); 704 struct nes_device *nesdev = nesvnic->nesdev; 705 u64 u64temp; 706 u32 u32temp; 707 708 u32temp = nes_read_indexed(nesdev, 709 NES_IDX_ENDNODE0_NSTAT_RX_DISCARD + (nesvnic->nic_index*0x200)); 710 nesvnic->netstats.rx_dropped += u32temp; 711 nesvnic->endnode_nstat_rx_discard += u32temp; 712 713 u64temp = (u64)nes_read_indexed(nesdev, 714 NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_LO + (nesvnic->nic_index*0x200)); 715 u64temp += ((u64)nes_read_indexed(nesdev, 716 NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_HI + (nesvnic->nic_index*0x200))) << 32; 717 718 nesvnic->endnode_nstat_rx_octets += u64temp; 719 nesvnic->netstats.rx_bytes += u64temp; 720 721 u64temp = (u64)nes_read_indexed(nesdev, 722 NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_LO + (nesvnic->nic_index*0x200)); 723 u64temp += ((u64)nes_read_indexed(nesdev, 724 NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_HI + (nesvnic->nic_index*0x200))) << 32; 725 726 nesvnic->endnode_nstat_rx_frames += u64temp; 727 nesvnic->netstats.rx_packets += u64temp; 728 729 u64temp = (u64)nes_read_indexed(nesdev, 730 NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_LO + (nesvnic->nic_index*0x200)); 731 u64temp += ((u64)nes_read_indexed(nesdev, 732 NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_HI + (nesvnic->nic_index*0x200))) << 32; 733 734 nesvnic->endnode_nstat_tx_octets += u64temp; 735 nesvnic->netstats.tx_bytes += u64temp; 736 737 u64temp = (u64)nes_read_indexed(nesdev, 738 NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_LO + (nesvnic->nic_index*0x200)); 739 u64temp += ((u64)nes_read_indexed(nesdev, 740 NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_HI + (nesvnic->nic_index*0x200))) << 32; 741 742 nesvnic->endnode_nstat_tx_frames += u64temp; 743 nesvnic->netstats.tx_packets += u64temp; 744 745 u32temp = nes_read_indexed(nesdev, 746 NES_IDX_MAC_RX_SHORT_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 747 nesvnic->netstats.rx_dropped += u32temp; 748 nesvnic->nesdev->mac_rx_errors += u32temp; 749 nesvnic->nesdev->mac_rx_short_frames += u32temp; 750 751 u32temp = nes_read_indexed(nesdev, 752 NES_IDX_MAC_RX_OVERSIZED_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 753 nesvnic->netstats.rx_dropped += u32temp; 754 nesvnic->nesdev->mac_rx_errors += u32temp; 755 nesvnic->nesdev->mac_rx_oversized_frames += u32temp; 756 757 u32temp = nes_read_indexed(nesdev, 758 NES_IDX_MAC_RX_JABBER_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 759 nesvnic->netstats.rx_dropped += u32temp; 760 nesvnic->nesdev->mac_rx_errors += u32temp; 761 nesvnic->nesdev->mac_rx_jabber_frames += u32temp; 762 763 u32temp = nes_read_indexed(nesdev, 764 NES_IDX_MAC_RX_SYMBOL_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 765 nesvnic->netstats.rx_dropped += u32temp; 766 nesvnic->nesdev->mac_rx_errors += u32temp; 767 nesvnic->nesdev->mac_rx_symbol_err_frames += u32temp; 768 769 u32temp = nes_read_indexed(nesdev, 770 NES_IDX_MAC_RX_LENGTH_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 771 nesvnic->netstats.rx_length_errors += u32temp; 772 nesvnic->nesdev->mac_rx_errors += u32temp; 773 774 u32temp = nes_read_indexed(nesdev, 775 NES_IDX_MAC_RX_CRC_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 776 nesvnic->nesdev->mac_rx_errors += u32temp; 777 nesvnic->nesdev->mac_rx_crc_errors += u32temp; 778 nesvnic->netstats.rx_crc_errors += u32temp; 779 780 u32temp = nes_read_indexed(nesdev, 781 NES_IDX_MAC_TX_ERRORS + (nesvnic->nesdev->mac_index*0x200)); 782 nesvnic->nesdev->mac_tx_errors += u32temp; 783 nesvnic->netstats.tx_errors += u32temp; 784 785 return &nesvnic->netstats; 786} 787 788 789/** 790 * nes_netdev_tx_timeout 791 */ 792static void nes_netdev_tx_timeout(struct net_device *netdev) 793{ 794 struct nes_vnic *nesvnic = netdev_priv(netdev); 795 796 if (netif_msg_timer(nesvnic)) 797 nes_debug(NES_DBG_NIC_TX, "%s: tx timeout\n", netdev->name); 798} 799 800 801/** 802 * nes_netdev_set_mac_address 803 */ 804static int nes_netdev_set_mac_address(struct net_device *netdev, void *p) 805{ 806 struct nes_vnic *nesvnic = netdev_priv(netdev); 807 struct nes_device *nesdev = nesvnic->nesdev; 808 struct sockaddr *mac_addr = p; 809 int i; 810 u32 macaddr_low; 811 u16 macaddr_high; 812 813 if (!is_valid_ether_addr(mac_addr->sa_data)) 814 return -EADDRNOTAVAIL; 815 816 memcpy(netdev->dev_addr, mac_addr->sa_data, netdev->addr_len); 817 printk(PFX "%s: Address length = %d, Address = %pM\n", 818 __func__, netdev->addr_len, mac_addr->sa_data); 819 macaddr_high = ((u16)netdev->dev_addr[0]) << 8; 820 macaddr_high += (u16)netdev->dev_addr[1]; 821 macaddr_low = ((u32)netdev->dev_addr[2]) << 24; 822 macaddr_low += ((u32)netdev->dev_addr[3]) << 16; 823 macaddr_low += ((u32)netdev->dev_addr[4]) << 8; 824 macaddr_low += (u32)netdev->dev_addr[5]; 825 826 for (i = 0; i < NES_MAX_PORT_COUNT; i++) { 827 if (nesvnic->qp_nic_index[i] == 0xf) { 828 break; 829 } 830 nes_write_indexed(nesdev, 831 NES_IDX_PERFECT_FILTER_LOW + (nesvnic->qp_nic_index[i] * 8), 832 macaddr_low); 833 nes_write_indexed(nesdev, 834 NES_IDX_PERFECT_FILTER_HIGH + (nesvnic->qp_nic_index[i] * 8), 835 (u32)macaddr_high | NES_MAC_ADDR_VALID | 836 ((((u32)nesvnic->nic_index) << 16))); 837 } 838 return 0; 839} 840 841 842static void set_allmulti(struct nes_device *nesdev, u32 nic_active_bit) 843{ 844 u32 nic_active; 845 846 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL); 847 nic_active |= nic_active_bit; 848 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active); 849 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL); 850 nic_active &= ~nic_active_bit; 851 nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active); 852} 853 854#define get_addr(addrs, index) ((addrs) + (index) * ETH_ALEN) 855 856/** 857 * nes_netdev_set_multicast_list 858 */ 859static void nes_netdev_set_multicast_list(struct net_device *netdev) 860{ 861 struct nes_vnic *nesvnic = netdev_priv(netdev); 862 struct nes_device *nesdev = nesvnic->nesdev; 863 struct nes_adapter *nesadapter = nesvnic->nesdev->nesadapter; 864 u32 nic_active_bit; 865 u32 nic_active; 866 u32 perfect_filter_register_address; 867 u32 macaddr_low; 868 u16 macaddr_high; 869 u8 mc_all_on = 0; 870 u8 mc_index; 871 int mc_nic_index = -1; 872 u8 pft_entries_preallocated = max(nesadapter->adapter_fcn_count * 873 nics_per_function, 4); 874 u8 max_pft_entries_avaiable = NES_PFT_SIZE - pft_entries_preallocated; 875 unsigned long flags; 876 int mc_count = netdev_mc_count(netdev); 877 878 spin_lock_irqsave(&nesadapter->resource_lock, flags); 879 nic_active_bit = 1 << nesvnic->nic_index; 880 881 if (netdev->flags & IFF_PROMISC) { 882 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL); 883 nic_active |= nic_active_bit; 884 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active); 885 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL); 886 nic_active |= nic_active_bit; 887 nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active); 888 mc_all_on = 1; 889 } else if ((netdev->flags & IFF_ALLMULTI) || 890 (nesvnic->nic_index > 3)) { 891 set_allmulti(nesdev, nic_active_bit); 892 mc_all_on = 1; 893 } else { 894 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL); 895 nic_active &= ~nic_active_bit; 896 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active); 897 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL); 898 nic_active &= ~nic_active_bit; 899 nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active); 900 } 901 902 nes_debug(NES_DBG_NIC_RX, "Number of MC entries = %d, Promiscuous = %d, All Multicast = %d.\n", 903 mc_count, !!(netdev->flags & IFF_PROMISC), 904 !!(netdev->flags & IFF_ALLMULTI)); 905 if (!mc_all_on) { 906 char *addrs; 907 int i; 908 struct netdev_hw_addr *ha; 909 910 addrs = kmalloc(ETH_ALEN * mc_count, GFP_ATOMIC); 911 if (!addrs) { 912 set_allmulti(nesdev, nic_active_bit); 913 goto unlock; 914 } 915 i = 0; 916 netdev_for_each_mc_addr(ha, netdev) 917 memcpy(get_addr(addrs, i++), ha->addr, ETH_ALEN); 918 919 perfect_filter_register_address = NES_IDX_PERFECT_FILTER_LOW + 920 pft_entries_preallocated * 0x8; 921 for (i = 0, mc_index = 0; mc_index < max_pft_entries_avaiable; 922 mc_index++) { 923 while (i < mc_count && nesvnic->mcrq_mcast_filter && 924 ((mc_nic_index = nesvnic->mcrq_mcast_filter(nesvnic, 925 get_addr(addrs, i++))) == 0)); 926 if (mc_nic_index < 0) 927 mc_nic_index = nesvnic->nic_index; 928 while (nesadapter->pft_mcast_map[mc_index] < 16 && 929 nesadapter->pft_mcast_map[mc_index] != 930 nesvnic->nic_index && 931 mc_index < max_pft_entries_avaiable) { 932 nes_debug(NES_DBG_NIC_RX, 933 "mc_index=%d skipping nic_index=%d, " 934 "used for=%d \n", mc_index, 935 nesvnic->nic_index, 936 nesadapter->pft_mcast_map[mc_index]); 937 mc_index++; 938 } 939 if (mc_index >= max_pft_entries_avaiable) 940 break; 941 if (i < mc_count) { 942 char *addr = get_addr(addrs, i++); 943 944 nes_debug(NES_DBG_NIC_RX, "Assigning MC Address %pM to register 0x%04X nic_idx=%d\n", 945 addr, 946 perfect_filter_register_address+(mc_index * 8), 947 mc_nic_index); 948 macaddr_high = ((u8) addr[0]) << 8; 949 macaddr_high += (u8) addr[1]; 950 macaddr_low = ((u8) addr[2]) << 24; 951 macaddr_low += ((u8) addr[3]) << 16; 952 macaddr_low += ((u8) addr[4]) << 8; 953 macaddr_low += (u8) addr[5]; 954 955 nes_write_indexed(nesdev, 956 perfect_filter_register_address+(mc_index * 8), 957 macaddr_low); 958 nes_write_indexed(nesdev, 959 perfect_filter_register_address+4+(mc_index * 8), 960 (u32)macaddr_high | NES_MAC_ADDR_VALID | 961 ((((u32)(1<<mc_nic_index)) << 16))); 962 nesadapter->pft_mcast_map[mc_index] = 963 nesvnic->nic_index; 964 } else { 965 nes_debug(NES_DBG_NIC_RX, "Clearing MC Address at register 0x%04X\n", 966 perfect_filter_register_address+(mc_index * 8)); 967 nes_write_indexed(nesdev, 968 perfect_filter_register_address+4+(mc_index * 8), 969 0); 970 nesadapter->pft_mcast_map[mc_index] = 255; 971 } 972 } 973 kfree(addrs); 974 /* PFT is not large enough */ 975 if (i < mc_count) 976 set_allmulti(nesdev, nic_active_bit); 977 } 978 979unlock: 980 spin_unlock_irqrestore(&nesadapter->resource_lock, flags); 981} 982 983 984/** 985 * nes_netdev_change_mtu 986 */ 987static int nes_netdev_change_mtu(struct net_device *netdev, int new_mtu) 988{ 989 struct nes_vnic *nesvnic = netdev_priv(netdev); 990 struct nes_device *nesdev = nesvnic->nesdev; 991 int ret = 0; 992 u8 jumbomode = 0; 993 u32 nic_active; 994 u32 nic_active_bit; 995 u32 uc_all_active; 996 u32 mc_all_active; 997 998 if ((new_mtu < ETH_ZLEN) || (new_mtu > max_mtu)) 999 return -EINVAL; 1000 1001 netdev->mtu = new_mtu; 1002 nesvnic->max_frame_size = new_mtu + VLAN_ETH_HLEN; 1003 1004 if (netdev->mtu > 1500) { 1005 jumbomode=1; 1006 } 1007 nes_nic_init_timer_defaults(nesdev, jumbomode); 1008 1009 if (netif_running(netdev)) { 1010 nic_active_bit = 1 << nesvnic->nic_index; 1011 mc_all_active = nes_read_indexed(nesdev, 1012 NES_IDX_NIC_MULTICAST_ALL) & nic_active_bit; 1013 uc_all_active = nes_read_indexed(nesdev, 1014 NES_IDX_NIC_UNICAST_ALL) & nic_active_bit; 1015 1016 nes_netdev_stop(netdev); 1017 nes_netdev_open(netdev); 1018 1019 nic_active = nes_read_indexed(nesdev, 1020 NES_IDX_NIC_MULTICAST_ALL); 1021 nic_active |= mc_all_active; 1022 nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, 1023 nic_active); 1024 1025 nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL); 1026 nic_active |= uc_all_active; 1027 nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active); 1028 } 1029 1030 return ret; 1031} 1032 1033 1034static const char nes_ethtool_stringset[][ETH_GSTRING_LEN] = { 1035 "Link Change Interrupts", 1036 "Linearized SKBs", 1037 "T/GSO Requests", 1038 "Pause Frames Sent", 1039 "Pause Frames Received", 1040 "Internal Routing Errors", 1041 "SQ SW Dropped SKBs", 1042 "SQ Full", 1043 "Segmented TSO Requests", 1044 "Rx Symbol Errors", 1045 "Rx Jabber Errors", 1046 "Rx Oversized Frames", 1047 "Rx Short Frames", 1048 "Rx Length Errors", 1049 "Rx CRC Errors", 1050 "Rx Port Discard", 1051 "Endnode Rx Discards", 1052 "Endnode Rx Octets", 1053 "Endnode Rx Frames", 1054 "Endnode Tx Octets", 1055 "Endnode Tx Frames", 1056 "Tx Errors", 1057 "mh detected", 1058 "mh pauses", 1059 "Retransmission Count", 1060 "CM Connects", 1061 "CM Accepts", 1062 "Disconnects", 1063 "Connected Events", 1064 "Connect Requests", 1065 "CM Rejects", 1066 "ModifyQP Timeouts", 1067 "CreateQPs", 1068 "SW DestroyQPs", 1069 "DestroyQPs", 1070 "CM Closes", 1071 "CM Packets Sent", 1072 "CM Packets Bounced", 1073 "CM Packets Created", 1074 "CM Packets Rcvd", 1075 "CM Packets Dropped", 1076 "CM Packets Retrans", 1077 "CM Listens Created", 1078 "CM Listens Destroyed", 1079 "CM Backlog Drops", 1080 "CM Loopbacks", 1081 "CM Nodes Created", 1082 "CM Nodes Destroyed", 1083 "CM Accel Drops", 1084 "CM Resets Received", 1085 "Free 4Kpbls", 1086 "Free 256pbls", 1087 "Timer Inits", 1088 "LRO aggregated", 1089 "LRO flushed", 1090 "LRO no_desc", 1091 "PAU CreateQPs", 1092 "PAU DestroyQPs", 1093}; 1094#define NES_ETHTOOL_STAT_COUNT ARRAY_SIZE(nes_ethtool_stringset) 1095 1096 1097/** 1098 * nes_netdev_get_sset_count 1099 */ 1100static int nes_netdev_get_sset_count(struct net_device *netdev, int stringset) 1101{ 1102 if (stringset == ETH_SS_STATS) 1103 return NES_ETHTOOL_STAT_COUNT; 1104 else 1105 return -EINVAL; 1106} 1107 1108 1109/** 1110 * nes_netdev_get_strings 1111 */ 1112static void nes_netdev_get_strings(struct net_device *netdev, u32 stringset, 1113 u8 *ethtool_strings) 1114{ 1115 if (stringset == ETH_SS_STATS) 1116 memcpy(ethtool_strings, 1117 &nes_ethtool_stringset, 1118 sizeof(nes_ethtool_stringset)); 1119} 1120 1121 1122/** 1123 * nes_netdev_get_ethtool_stats 1124 */ 1125 1126static void nes_netdev_get_ethtool_stats(struct net_device *netdev, 1127 struct ethtool_stats *target_ethtool_stats, u64 *target_stat_values) 1128{ 1129 u64 u64temp; 1130 struct nes_vnic *nesvnic = netdev_priv(netdev); 1131 struct nes_device *nesdev = nesvnic->nesdev; 1132 struct nes_adapter *nesadapter = nesdev->nesadapter; 1133 u32 nic_count; 1134 u32 u32temp; 1135 u32 index = 0; 1136 1137 target_ethtool_stats->n_stats = NES_ETHTOOL_STAT_COUNT; 1138 target_stat_values[index] = nesvnic->nesdev->link_status_interrupts; 1139 target_stat_values[++index] = nesvnic->linearized_skbs; 1140 target_stat_values[++index] = nesvnic->tso_requests; 1141 1142 u32temp = nes_read_indexed(nesdev, 1143 NES_IDX_MAC_TX_PAUSE_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 1144 nesvnic->nesdev->mac_pause_frames_sent += u32temp; 1145 target_stat_values[++index] = nesvnic->nesdev->mac_pause_frames_sent; 1146 1147 u32temp = nes_read_indexed(nesdev, 1148 NES_IDX_MAC_RX_PAUSE_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 1149 nesvnic->nesdev->mac_pause_frames_received += u32temp; 1150 1151 u32temp = nes_read_indexed(nesdev, 1152 NES_IDX_PORT_RX_DISCARDS + (nesvnic->nesdev->mac_index*0x40)); 1153 nesvnic->nesdev->port_rx_discards += u32temp; 1154 nesvnic->netstats.rx_dropped += u32temp; 1155 1156 u32temp = nes_read_indexed(nesdev, 1157 NES_IDX_PORT_TX_DISCARDS + (nesvnic->nesdev->mac_index*0x40)); 1158 nesvnic->nesdev->port_tx_discards += u32temp; 1159 nesvnic->netstats.tx_dropped += u32temp; 1160 1161 u32temp = nes_read_indexed(nesdev, 1162 NES_IDX_MAC_RX_SHORT_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 1163 nesvnic->netstats.rx_dropped += u32temp; 1164 nesvnic->nesdev->mac_rx_errors += u32temp; 1165 nesvnic->nesdev->mac_rx_short_frames += u32temp; 1166 1167 u32temp = nes_read_indexed(nesdev, 1168 NES_IDX_MAC_RX_OVERSIZED_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 1169 nesvnic->netstats.rx_dropped += u32temp; 1170 nesvnic->nesdev->mac_rx_errors += u32temp; 1171 nesvnic->nesdev->mac_rx_oversized_frames += u32temp; 1172 1173 u32temp = nes_read_indexed(nesdev, 1174 NES_IDX_MAC_RX_JABBER_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 1175 nesvnic->netstats.rx_dropped += u32temp; 1176 nesvnic->nesdev->mac_rx_errors += u32temp; 1177 nesvnic->nesdev->mac_rx_jabber_frames += u32temp; 1178 1179 u32temp = nes_read_indexed(nesdev, 1180 NES_IDX_MAC_RX_SYMBOL_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 1181 nesvnic->netstats.rx_dropped += u32temp; 1182 nesvnic->nesdev->mac_rx_errors += u32temp; 1183 nesvnic->nesdev->mac_rx_symbol_err_frames += u32temp; 1184 1185 u32temp = nes_read_indexed(nesdev, 1186 NES_IDX_MAC_RX_LENGTH_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 1187 nesvnic->netstats.rx_length_errors += u32temp; 1188 nesvnic->nesdev->mac_rx_errors += u32temp; 1189 1190 u32temp = nes_read_indexed(nesdev, 1191 NES_IDX_MAC_RX_CRC_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200)); 1192 nesvnic->nesdev->mac_rx_errors += u32temp; 1193 nesvnic->nesdev->mac_rx_crc_errors += u32temp; 1194 nesvnic->netstats.rx_crc_errors += u32temp; 1195 1196 u32temp = nes_read_indexed(nesdev, 1197 NES_IDX_MAC_TX_ERRORS + (nesvnic->nesdev->mac_index*0x200)); 1198 nesvnic->nesdev->mac_tx_errors += u32temp; 1199 nesvnic->netstats.tx_errors += u32temp; 1200 1201 for (nic_count = 0; nic_count < NES_MAX_PORT_COUNT; nic_count++) { 1202 if (nesvnic->qp_nic_index[nic_count] == 0xf) 1203 break; 1204 1205 u32temp = nes_read_indexed(nesdev, 1206 NES_IDX_ENDNODE0_NSTAT_RX_DISCARD + 1207 (nesvnic->qp_nic_index[nic_count]*0x200)); 1208 nesvnic->netstats.rx_dropped += u32temp; 1209 nesvnic->endnode_nstat_rx_discard += u32temp; 1210 1211 u64temp = (u64)nes_read_indexed(nesdev, 1212 NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_LO + 1213 (nesvnic->qp_nic_index[nic_count]*0x200)); 1214 u64temp += ((u64)nes_read_indexed(nesdev, 1215 NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_HI + 1216 (nesvnic->qp_nic_index[nic_count]*0x200))) << 32; 1217 1218 nesvnic->endnode_nstat_rx_octets += u64temp; 1219 nesvnic->netstats.rx_bytes += u64temp; 1220 1221 u64temp = (u64)nes_read_indexed(nesdev, 1222 NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_LO + 1223 (nesvnic->qp_nic_index[nic_count]*0x200)); 1224 u64temp += ((u64)nes_read_indexed(nesdev, 1225 NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_HI + 1226 (nesvnic->qp_nic_index[nic_count]*0x200))) << 32; 1227 1228 nesvnic->endnode_nstat_rx_frames += u64temp; 1229 nesvnic->netstats.rx_packets += u64temp; 1230 1231 u64temp = (u64)nes_read_indexed(nesdev, 1232 NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_LO + 1233 (nesvnic->qp_nic_index[nic_count]*0x200)); 1234 u64temp += ((u64)nes_read_indexed(nesdev, 1235 NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_HI + 1236 (nesvnic->qp_nic_index[nic_count]*0x200))) << 32; 1237 1238 nesvnic->endnode_nstat_tx_octets += u64temp; 1239 nesvnic->netstats.tx_bytes += u64temp; 1240 1241 u64temp = (u64)nes_read_indexed(nesdev, 1242 NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_LO + 1243 (nesvnic->qp_nic_index[nic_count]*0x200)); 1244 u64temp += ((u64)nes_read_indexed(nesdev, 1245 NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_HI + 1246 (nesvnic->qp_nic_index[nic_count]*0x200))) << 32; 1247 1248 nesvnic->endnode_nstat_tx_frames += u64temp; 1249 nesvnic->netstats.tx_packets += u64temp; 1250 1251 u32temp = nes_read_indexed(nesdev, 1252 NES_IDX_IPV4_TCP_REXMITS + (nesvnic->qp_nic_index[nic_count]*0x200)); 1253 nesvnic->endnode_ipv4_tcp_retransmits += u32temp; 1254 } 1255 1256 target_stat_values[++index] = nesvnic->nesdev->mac_pause_frames_received; 1257 target_stat_values[++index] = nesdev->nesadapter->nic_rx_eth_route_err; 1258 target_stat_values[++index] = nesvnic->tx_sw_dropped; 1259 target_stat_values[++index] = nesvnic->sq_full; 1260 target_stat_values[++index] = nesvnic->segmented_tso_requests; 1261 target_stat_values[++index] = nesvnic->nesdev->mac_rx_symbol_err_frames; 1262 target_stat_values[++index] = nesvnic->nesdev->mac_rx_jabber_frames; 1263 target_stat_values[++index] = nesvnic->nesdev->mac_rx_oversized_frames; 1264 target_stat_values[++index] = nesvnic->nesdev->mac_rx_short_frames; 1265 target_stat_values[++index] = nesvnic->netstats.rx_length_errors; 1266 target_stat_values[++index] = nesvnic->nesdev->mac_rx_crc_errors; 1267 target_stat_values[++index] = nesvnic->nesdev->port_rx_discards; 1268 target_stat_values[++index] = nesvnic->endnode_nstat_rx_discard; 1269 target_stat_values[++index] = nesvnic->endnode_nstat_rx_octets; 1270 target_stat_values[++index] = nesvnic->endnode_nstat_rx_frames; 1271 target_stat_values[++index] = nesvnic->endnode_nstat_tx_octets; 1272 target_stat_values[++index] = nesvnic->endnode_nstat_tx_frames; 1273 target_stat_values[++index] = nesvnic->nesdev->mac_tx_errors; 1274 target_stat_values[++index] = mh_detected; 1275 target_stat_values[++index] = mh_pauses_sent; 1276 target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits; 1277 target_stat_values[++index] = atomic_read(&cm_connects); 1278 target_stat_values[++index] = atomic_read(&cm_accepts); 1279 target_stat_values[++index] = atomic_read(&cm_disconnects); 1280 target_stat_values[++index] = atomic_read(&cm_connecteds); 1281 target_stat_values[++index] = atomic_read(&cm_connect_reqs); 1282 target_stat_values[++index] = atomic_read(&cm_rejects); 1283 target_stat_values[++index] = atomic_read(&mod_qp_timouts); 1284 target_stat_values[++index] = atomic_read(&qps_created); 1285 target_stat_values[++index] = atomic_read(&sw_qps_destroyed); 1286 target_stat_values[++index] = atomic_read(&qps_destroyed); 1287 target_stat_values[++index] = atomic_read(&cm_closes); 1288 target_stat_values[++index] = cm_packets_sent; 1289 target_stat_values[++index] = cm_packets_bounced; 1290 target_stat_values[++index] = cm_packets_created; 1291 target_stat_values[++index] = cm_packets_received; 1292 target_stat_values[++index] = cm_packets_dropped; 1293 target_stat_values[++index] = cm_packets_retrans; 1294 target_stat_values[++index] = atomic_read(&cm_listens_created); 1295 target_stat_values[++index] = atomic_read(&cm_listens_destroyed); 1296 target_stat_values[++index] = cm_backlog_drops; 1297 target_stat_values[++index] = atomic_read(&cm_loopbacks); 1298 target_stat_values[++index] = atomic_read(&cm_nodes_created); 1299 target_stat_values[++index] = atomic_read(&cm_nodes_destroyed); 1300 target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts); 1301 target_stat_values[++index] = atomic_read(&cm_resets_recvd); 1302 target_stat_values[++index] = nesadapter->free_4kpbl; 1303 target_stat_values[++index] = nesadapter->free_256pbl; 1304 target_stat_values[++index] = int_mod_timer_init; 1305 target_stat_values[++index] = nesvnic->lro_mgr.stats.aggregated; 1306 target_stat_values[++index] = nesvnic->lro_mgr.stats.flushed; 1307 target_stat_values[++index] = nesvnic->lro_mgr.stats.no_desc; 1308 target_stat_values[++index] = atomic_read(&pau_qps_created); 1309 target_stat_values[++index] = atomic_read(&pau_qps_destroyed); 1310} 1311 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); 1319 struct nes_adapter *nesadapter = nesvnic->nesdev->nesadapter; 1320 1321 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 1322 strlcpy(drvinfo->bus_info, pci_name(nesvnic->nesdev->pcidev), 1323 sizeof(drvinfo->bus_info)); 1324 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 1325 "%u.%u", nesadapter->firmware_version >> 16, 1326 nesadapter->firmware_version & 0x000000ff); 1327 strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version)); 1328 drvinfo->testinfo_len = 0; 1329 drvinfo->eedump_len = 0; 1330 drvinfo->regdump_len = 0; 1331} 1332 1333 1334/** 1335 * nes_netdev_set_coalesce 1336 */ 1337static int nes_netdev_set_coalesce(struct net_device *netdev, 1338 struct ethtool_coalesce *et_coalesce) 1339{ 1340 struct nes_vnic *nesvnic = netdev_priv(netdev); 1341 struct nes_device *nesdev = nesvnic->nesdev; 1342 struct nes_adapter *nesadapter = nesdev->nesadapter; 1343 struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer; 1344 unsigned long flags; 1345 1346 spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags); 1347 if (et_coalesce->rx_max_coalesced_frames_low) { 1348 shared_timer->threshold_low = et_coalesce->rx_max_coalesced_frames_low; 1349 } 1350 if (et_coalesce->rx_max_coalesced_frames_irq) { 1351 shared_timer->threshold_target = et_coalesce->rx_max_coalesced_frames_irq; 1352 } 1353 if (et_coalesce->rx_max_coalesced_frames_high) { 1354 shared_timer->threshold_high = et_coalesce->rx_max_coalesced_frames_high; 1355 } 1356 if (et_coalesce->rx_coalesce_usecs_low) { 1357 shared_timer->timer_in_use_min = et_coalesce->rx_coalesce_usecs_low; 1358 } 1359 if (et_coalesce->rx_coalesce_usecs_high) { 1360 shared_timer->timer_in_use_max = et_coalesce->rx_coalesce_usecs_high; 1361 } 1362 spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags); 1363 1364 /* using this to drive total interrupt moderation */ 1365 nesadapter->et_rx_coalesce_usecs_irq = et_coalesce->rx_coalesce_usecs_irq; 1366 if (et_coalesce->use_adaptive_rx_coalesce) { 1367 nesadapter->et_use_adaptive_rx_coalesce = 1; 1368 nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT_DYNAMIC; 1369 nesadapter->et_rx_coalesce_usecs_irq = 0; 1370 if (et_coalesce->pkt_rate_low) { 1371 nesadapter->et_pkt_rate_low = et_coalesce->pkt_rate_low; 1372 } 1373 } else { 1374 nesadapter->et_use_adaptive_rx_coalesce = 0; 1375 nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT; 1376 if (nesadapter->et_rx_coalesce_usecs_irq) { 1377 nes_write32(nesdev->regs+NES_PERIODIC_CONTROL, 1378 0x80000000 | ((u32)(nesadapter->et_rx_coalesce_usecs_irq*8))); 1379 } 1380 } 1381 return 0; 1382} 1383 1384 1385/** 1386 * nes_netdev_get_coalesce 1387 */ 1388static int nes_netdev_get_coalesce(struct net_device *netdev, 1389 struct ethtool_coalesce *et_coalesce) 1390{ 1391 struct nes_vnic *nesvnic = netdev_priv(netdev); 1392 struct nes_device *nesdev = nesvnic->nesdev; 1393 struct nes_adapter *nesadapter = nesdev->nesadapter; 1394 struct ethtool_coalesce temp_et_coalesce; 1395 struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer; 1396 unsigned long flags; 1397 1398 memset(&temp_et_coalesce, 0, sizeof(temp_et_coalesce)); 1399 temp_et_coalesce.rx_coalesce_usecs_irq = nesadapter->et_rx_coalesce_usecs_irq; 1400 temp_et_coalesce.use_adaptive_rx_coalesce = nesadapter->et_use_adaptive_rx_coalesce; 1401 temp_et_coalesce.rate_sample_interval = nesadapter->et_rate_sample_interval; 1402 temp_et_coalesce.pkt_rate_low = nesadapter->et_pkt_rate_low; 1403 spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags); 1404 temp_et_coalesce.rx_max_coalesced_frames_low = shared_timer->threshold_low; 1405 temp_et_coalesce.rx_max_coalesced_frames_irq = shared_timer->threshold_target; 1406 temp_et_coalesce.rx_max_coalesced_frames_high = shared_timer->threshold_high; 1407 temp_et_coalesce.rx_coalesce_usecs_low = shared_timer->timer_in_use_min; 1408 temp_et_coalesce.rx_coalesce_usecs_high = shared_timer->timer_in_use_max; 1409 if (nesadapter->et_use_adaptive_rx_coalesce) { 1410 temp_et_coalesce.rx_coalesce_usecs_irq = shared_timer->timer_in_use; 1411 } 1412 spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags); 1413 memcpy(et_coalesce, &temp_et_coalesce, sizeof(*et_coalesce)); 1414 return 0; 1415} 1416 1417 1418/** 1419 * nes_netdev_get_pauseparam 1420 */ 1421static void nes_netdev_get_pauseparam(struct net_device *netdev, 1422 struct ethtool_pauseparam *et_pauseparam) 1423{ 1424 struct nes_vnic *nesvnic = netdev_priv(netdev); 1425 1426 et_pauseparam->autoneg = 0; 1427 et_pauseparam->rx_pause = (nesvnic->nesdev->disable_rx_flow_control == 0) ? 1:0; 1428 et_pauseparam->tx_pause = (nesvnic->nesdev->disable_tx_flow_control == 0) ? 1:0; 1429} 1430 1431 1432/** 1433 * nes_netdev_set_pauseparam 1434 */ 1435static int nes_netdev_set_pauseparam(struct net_device *netdev, 1436 struct ethtool_pauseparam *et_pauseparam) 1437{ 1438 struct nes_vnic *nesvnic = netdev_priv(netdev); 1439 struct nes_device *nesdev = nesvnic->nesdev; 1440 u32 u32temp; 1441 1442 if (et_pauseparam->autoneg) { 1443 /* TODO: should return unsupported */ 1444 return 0; 1445 } 1446 if ((et_pauseparam->tx_pause == 1) && (nesdev->disable_tx_flow_control == 1)) { 1447 u32temp = nes_read_indexed(nesdev, 1448 NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200)); 1449 u32temp |= NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE; 1450 nes_write_indexed(nesdev, 1451 NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200), u32temp); 1452 nesdev->disable_tx_flow_control = 0; 1453 } else if ((et_pauseparam->tx_pause == 0) && (nesdev->disable_tx_flow_control == 0)) { 1454 u32temp = nes_read_indexed(nesdev, 1455 NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200)); 1456 u32temp &= ~NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE; 1457 nes_write_indexed(nesdev, 1458 NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200), u32temp); 1459 nesdev->disable_tx_flow_control = 1; 1460 } 1461 if ((et_pauseparam->rx_pause == 1) && (nesdev->disable_rx_flow_control == 1)) { 1462 u32temp = nes_read_indexed(nesdev, 1463 NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40)); 1464 u32temp &= ~NES_IDX_MPP_DEBUG_PORT_DISABLE_PAUSE; 1465 nes_write_indexed(nesdev, 1466 NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40), u32temp); 1467 nesdev->disable_rx_flow_control = 0; 1468 } else if ((et_pauseparam->rx_pause == 0) && (nesdev->disable_rx_flow_control == 0)) { 1469 u32temp = nes_read_indexed(nesdev, 1470 NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40)); 1471 u32temp |= NES_IDX_MPP_DEBUG_PORT_DISABLE_PAUSE; 1472 nes_write_indexed(nesdev, 1473 NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40), u32temp); 1474 nesdev->disable_rx_flow_control = 1; 1475 } 1476 1477 return 0; 1478} 1479 1480 1481/** 1482 * nes_netdev_get_settings 1483 */ 1484static int nes_netdev_get_settings(struct net_device *netdev, struct ethtool_cmd *et_cmd) 1485{ 1486 struct nes_vnic *nesvnic = netdev_priv(netdev); 1487 struct nes_device *nesdev = nesvnic->nesdev; 1488 struct nes_adapter *nesadapter = nesdev->nesadapter; 1489 u32 mac_index = nesdev->mac_index; 1490 u8 phy_type = nesadapter->phy_type[mac_index]; 1491 u8 phy_index = nesadapter->phy_index[mac_index]; 1492 u16 phy_data; 1493 1494 et_cmd->duplex = DUPLEX_FULL; 1495 et_cmd->port = PORT_MII; 1496 et_cmd->maxtxpkt = 511; 1497 et_cmd->maxrxpkt = 511; 1498 1499 if (nesadapter->OneG_Mode) { 1500 ethtool_cmd_speed_set(et_cmd, SPEED_1000); 1501 if (phy_type == NES_PHY_TYPE_PUMA_1G) { 1502 et_cmd->supported = SUPPORTED_1000baseT_Full; 1503 et_cmd->advertising = ADVERTISED_1000baseT_Full; 1504 et_cmd->autoneg = AUTONEG_DISABLE; 1505 et_cmd->transceiver = XCVR_INTERNAL; 1506 et_cmd->phy_address = mac_index; 1507 } else { 1508 unsigned long flags; 1509 et_cmd->supported = SUPPORTED_1000baseT_Full 1510 | SUPPORTED_Autoneg; 1511 et_cmd->advertising = ADVERTISED_1000baseT_Full 1512 | ADVERTISED_Autoneg; 1513 spin_lock_irqsave(&nesadapter->phy_lock, flags); 1514 nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data); 1515 spin_unlock_irqrestore(&nesadapter->phy_lock, flags); 1516 if (phy_data & 0x1000) 1517 et_cmd->autoneg = AUTONEG_ENABLE; 1518 else 1519 et_cmd->autoneg = AUTONEG_DISABLE; 1520 et_cmd->transceiver = XCVR_EXTERNAL; 1521 et_cmd->phy_address = phy_index; 1522 } 1523 return 0; 1524 } 1525 if ((phy_type == NES_PHY_TYPE_ARGUS) || 1526 (phy_type == NES_PHY_TYPE_SFP_D) || 1527 (phy_type == NES_PHY_TYPE_KR)) { 1528 et_cmd->transceiver = XCVR_EXTERNAL; 1529 et_cmd->port = PORT_FIBRE; 1530 et_cmd->supported = SUPPORTED_FIBRE; 1531 et_cmd->advertising = ADVERTISED_FIBRE; 1532 et_cmd->phy_address = phy_index; 1533 } else { 1534 et_cmd->transceiver = XCVR_INTERNAL; 1535 et_cmd->supported = SUPPORTED_10000baseT_Full; 1536 et_cmd->advertising = ADVERTISED_10000baseT_Full; 1537 et_cmd->phy_address = mac_index; 1538 } 1539 ethtool_cmd_speed_set(et_cmd, SPEED_10000); 1540 et_cmd->autoneg = AUTONEG_DISABLE; 1541 return 0; 1542} 1543 1544 1545/** 1546 * nes_netdev_set_settings 1547 */ 1548static int nes_netdev_set_settings(struct net_device *netdev, struct ethtool_cmd *et_cmd) 1549{ 1550 struct nes_vnic *nesvnic = netdev_priv(netdev); 1551 struct nes_device *nesdev = nesvnic->nesdev; 1552 struct nes_adapter *nesadapter = nesdev->nesadapter; 1553 1554 if ((nesadapter->OneG_Mode) && 1555 (nesadapter->phy_type[nesdev->mac_index] != NES_PHY_TYPE_PUMA_1G)) { 1556 unsigned long flags; 1557 u16 phy_data; 1558 u8 phy_index = nesadapter->phy_index[nesdev->mac_index]; 1559 1560 spin_lock_irqsave(&nesadapter->phy_lock, flags); 1561 nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data); 1562 if (et_cmd->autoneg) { 1563 /* Turn on Full duplex, Autoneg, and restart autonegotiation */ 1564 phy_data |= 0x1300; 1565 } else { 1566 /* Turn off autoneg */ 1567 phy_data &= ~0x1000; 1568 } 1569 nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data); 1570 spin_unlock_irqrestore(&nesadapter->phy_lock, flags); 1571 } 1572 1573 return 0; 1574} 1575 1576 1577static const struct ethtool_ops nes_ethtool_ops = { 1578 .get_link = ethtool_op_get_link, 1579 .get_settings = nes_netdev_get_settings, 1580 .set_settings = nes_netdev_set_settings, 1581 .get_strings = nes_netdev_get_strings, 1582 .get_sset_count = nes_netdev_get_sset_count, 1583 .get_ethtool_stats = nes_netdev_get_ethtool_stats, 1584 .get_drvinfo = nes_netdev_get_drvinfo, 1585 .get_coalesce = nes_netdev_get_coalesce, 1586 .set_coalesce = nes_netdev_set_coalesce, 1587 .get_pauseparam = nes_netdev_get_pauseparam, 1588 .set_pauseparam = nes_netdev_set_pauseparam, 1589}; 1590 1591static void nes_vlan_mode(struct net_device *netdev, struct nes_device *nesdev, netdev_features_t features) 1592{ 1593 struct nes_adapter *nesadapter = nesdev->nesadapter; 1594 u32 u32temp; 1595 unsigned long flags; 1596 1597 spin_lock_irqsave(&nesadapter->phy_lock, flags); 1598 1599 nes_debug(NES_DBG_NETDEV, "%s: %s\n", __func__, netdev->name); 1600 1601 /* Enable/Disable VLAN Stripping */ 1602 u32temp = nes_read_indexed(nesdev, NES_IDX_PCIX_DIAG); 1603 if (features & NETIF_F_HW_VLAN_CTAG_RX) 1604 u32temp &= 0xfdffffff; 1605 else 1606 u32temp |= 0x02000000; 1607 1608 nes_write_indexed(nesdev, NES_IDX_PCIX_DIAG, u32temp); 1609 spin_unlock_irqrestore(&nesadapter->phy_lock, flags); 1610} 1611 1612static netdev_features_t nes_fix_features(struct net_device *netdev, netdev_features_t features) 1613{ 1614 /* 1615 * Since there is no support for separate rx/tx vlan accel 1616 * enable/disable make sure tx flag is always in same state as rx. 1617 */ 1618 if (features & NETIF_F_HW_VLAN_CTAG_RX) 1619 features |= NETIF_F_HW_VLAN_CTAG_TX; 1620 else 1621 features &= ~NETIF_F_HW_VLAN_CTAG_TX; 1622 1623 return features; 1624} 1625 1626static int nes_set_features(struct net_device *netdev, netdev_features_t features) 1627{ 1628 struct nes_vnic *nesvnic = netdev_priv(netdev); 1629 struct nes_device *nesdev = nesvnic->nesdev; 1630 u32 changed = netdev->features ^ features; 1631 1632 if (changed & NETIF_F_HW_VLAN_CTAG_RX) 1633 nes_vlan_mode(netdev, nesdev, features); 1634 1635 return 0; 1636} 1637 1638static const struct net_device_ops nes_netdev_ops = { 1639 .ndo_open = nes_netdev_open, 1640 .ndo_stop = nes_netdev_stop, 1641 .ndo_start_xmit = nes_netdev_start_xmit, 1642 .ndo_get_stats = nes_netdev_get_stats, 1643 .ndo_tx_timeout = nes_netdev_tx_timeout, 1644 .ndo_set_mac_address = nes_netdev_set_mac_address, 1645 .ndo_set_rx_mode = nes_netdev_set_multicast_list, 1646 .ndo_change_mtu = nes_netdev_change_mtu, 1647 .ndo_validate_addr = eth_validate_addr, 1648 .ndo_fix_features = nes_fix_features, 1649 .ndo_set_features = nes_set_features, 1650}; 1651 1652/** 1653 * nes_netdev_init - initialize network device 1654 */ 1655struct net_device *nes_netdev_init(struct nes_device *nesdev, 1656 void __iomem *mmio_addr) 1657{ 1658 u64 u64temp; 1659 struct nes_vnic *nesvnic; 1660 struct net_device *netdev; 1661 struct nic_qp_map *curr_qp_map; 1662 u8 phy_type = nesdev->nesadapter->phy_type[nesdev->mac_index]; 1663 1664 netdev = alloc_etherdev(sizeof(struct nes_vnic)); 1665 if (!netdev) { 1666 printk(KERN_ERR PFX "nesvnic etherdev alloc failed"); 1667 return NULL; 1668 } 1669 nesvnic = netdev_priv(netdev); 1670 1671 nes_debug(NES_DBG_INIT, "netdev = %p, %s\n", netdev, netdev->name); 1672 1673 SET_NETDEV_DEV(netdev, &nesdev->pcidev->dev); 1674 1675 netdev->watchdog_timeo = NES_TX_TIMEOUT; 1676 netdev->irq = nesdev->pcidev->irq; 1677 netdev->mtu = ETH_DATA_LEN; 1678 netdev->hard_header_len = ETH_HLEN; 1679 netdev->addr_len = ETH_ALEN; 1680 netdev->type = ARPHRD_ETHER; 1681 netdev->netdev_ops = &nes_netdev_ops; 1682 netdev->ethtool_ops = &nes_ethtool_ops; 1683 netif_napi_add(netdev, &nesvnic->napi, nes_netdev_poll, 128); 1684 nes_debug(NES_DBG_INIT, "Enabling VLAN Insert/Delete.\n"); 1685 1686 /* Fill in the port structure */ 1687 nesvnic->netdev = netdev; 1688 nesvnic->nesdev = nesdev; 1689 nesvnic->msg_enable = netif_msg_init(debug, default_msg); 1690 nesvnic->netdev_index = nesdev->netdev_count; 1691 nesvnic->perfect_filter_index = nesdev->nesadapter->netdev_count; 1692 nesvnic->max_frame_size = netdev->mtu + netdev->hard_header_len + VLAN_HLEN; 1693 1694 curr_qp_map = nic_qp_mapping_per_function[PCI_FUNC(nesdev->pcidev->devfn)]; 1695 nesvnic->nic.qp_id = curr_qp_map[nesdev->netdev_count].qpid; 1696 nesvnic->nic_index = curr_qp_map[nesdev->netdev_count].nic_index; 1697 nesvnic->logical_port = curr_qp_map[nesdev->netdev_count].logical_port; 1698 1699 /* Setup the burned in MAC address */ 1700 u64temp = (u64)nesdev->nesadapter->mac_addr_low; 1701 u64temp += ((u64)nesdev->nesadapter->mac_addr_high) << 32; 1702 u64temp += nesvnic->nic_index; 1703 netdev->dev_addr[0] = (u8)(u64temp>>40); 1704 netdev->dev_addr[1] = (u8)(u64temp>>32); 1705 netdev->dev_addr[2] = (u8)(u64temp>>24); 1706 netdev->dev_addr[3] = (u8)(u64temp>>16); 1707 netdev->dev_addr[4] = (u8)(u64temp>>8); 1708 netdev->dev_addr[5] = (u8)u64temp; 1709 1710 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_RX; 1711 if ((nesvnic->logical_port < 2) || (nesdev->nesadapter->hw_rev != NE020_REV)) 1712 netdev->hw_features |= NETIF_F_TSO; 1713 1714 netdev->features = netdev->hw_features | NETIF_F_HIGHDMA | NETIF_F_HW_VLAN_CTAG_TX; 1715 netdev->hw_features |= NETIF_F_LRO; 1716 1717 nes_debug(NES_DBG_INIT, "nesvnic = %p, reported features = 0x%lX, QPid = %d," 1718 " nic_index = %d, logical_port = %d, mac_index = %d.\n", 1719 nesvnic, (unsigned long)netdev->features, nesvnic->nic.qp_id, 1720 nesvnic->nic_index, nesvnic->logical_port, nesdev->mac_index); 1721 1722 if (nesvnic->nesdev->nesadapter->port_count == 1 && 1723 nesvnic->nesdev->nesadapter->adapter_fcn_count == 1) { 1724 1725 nesvnic->qp_nic_index[0] = nesvnic->nic_index; 1726 nesvnic->qp_nic_index[1] = nesvnic->nic_index + 1; 1727 if (nes_drv_opt & NES_DRV_OPT_DUAL_LOGICAL_PORT) { 1728 nesvnic->qp_nic_index[2] = 0xf; 1729 nesvnic->qp_nic_index[3] = 0xf; 1730 } else { 1731 nesvnic->qp_nic_index[2] = nesvnic->nic_index + 2; 1732 nesvnic->qp_nic_index[3] = nesvnic->nic_index + 3; 1733 } 1734 } else { 1735 if (nesvnic->nesdev->nesadapter->port_count == 2 || 1736 (nesvnic->nesdev->nesadapter->port_count == 1 && 1737 nesvnic->nesdev->nesadapter->adapter_fcn_count == 2)) { 1738 nesvnic->qp_nic_index[0] = nesvnic->nic_index; 1739 nesvnic->qp_nic_index[1] = nesvnic->nic_index 1740 + 2; 1741 nesvnic->qp_nic_index[2] = 0xf; 1742 nesvnic->qp_nic_index[3] = 0xf; 1743 } else { 1744 nesvnic->qp_nic_index[0] = nesvnic->nic_index; 1745 nesvnic->qp_nic_index[1] = 0xf; 1746 nesvnic->qp_nic_index[2] = 0xf; 1747 nesvnic->qp_nic_index[3] = 0xf; 1748 } 1749 } 1750 nesvnic->next_qp_nic_index = 0; 1751 1752 if (nesdev->netdev_count == 0) { 1753 nesvnic->rdma_enabled = 1; 1754 } else { 1755 nesvnic->rdma_enabled = 0; 1756 } 1757 nesvnic->nic_cq.cq_number = nesvnic->nic.qp_id; 1758 init_timer(&nesvnic->event_timer); 1759 nesvnic->event_timer.function = NULL; 1760 spin_lock_init(&nesvnic->tx_lock); 1761 spin_lock_init(&nesvnic->port_ibevent_lock); 1762 nesdev->netdev[nesdev->netdev_count] = netdev; 1763 1764 nes_debug(NES_DBG_INIT, "Adding nesvnic (%p) to the adapters nesvnic_list for MAC%d.\n", 1765 nesvnic, nesdev->mac_index); 1766 list_add_tail(&nesvnic->list, &nesdev->nesadapter->nesvnic_list[nesdev->mac_index]); 1767 1768 if ((nesdev->netdev_count == 0) && 1769 ((PCI_FUNC(nesdev->pcidev->devfn) == nesdev->mac_index) || 1770 ((phy_type == NES_PHY_TYPE_PUMA_1G) && 1771 (((PCI_FUNC(nesdev->pcidev->devfn) == 1) && (nesdev->mac_index == 2)) || 1772 ((PCI_FUNC(nesdev->pcidev->devfn) == 2) && (nesdev->mac_index == 1)))))) { 1773 u32 u32temp; 1774 u32 link_mask = 0; 1775 u32 link_val = 0; 1776 u16 temp_phy_data; 1777 u16 phy_data = 0; 1778 unsigned long flags; 1779 1780 u32temp = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 + 1781 (0x200 * (nesdev->mac_index & 1))); 1782 if (phy_type != NES_PHY_TYPE_PUMA_1G) { 1783 u32temp |= 0x00200000; 1784 nes_write_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 + 1785 (0x200 * (nesdev->mac_index & 1)), u32temp); 1786 } 1787 1788 /* Check and set linkup here. This is for back to back */ 1789 /* configuration where second port won't get link interrupt */ 1790 switch (phy_type) { 1791 case NES_PHY_TYPE_PUMA_1G: 1792 if (nesdev->mac_index < 2) { 1793 link_mask = 0x01010000; 1794 link_val = 0x01010000; 1795 } else { 1796 link_mask = 0x02020000; 1797 link_val = 0x02020000; 1798 } 1799 break; 1800 case NES_PHY_TYPE_SFP_D: 1801 spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags); 1802 nes_read_10G_phy_reg(nesdev, 1803 nesdev->nesadapter->phy_index[nesdev->mac_index], 1804 1, 0x9003); 1805 temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL); 1806 nes_read_10G_phy_reg(nesdev, 1807 nesdev->nesadapter->phy_index[nesdev->mac_index], 1808 3, 0x0021); 1809 nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL); 1810 nes_read_10G_phy_reg(nesdev, 1811 nesdev->nesadapter->phy_index[nesdev->mac_index], 1812 3, 0x0021); 1813 phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL); 1814 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags); 1815 phy_data = (!temp_phy_data && (phy_data == 0x8000)) ? 0x4 : 0x0; 1816 break; 1817 default: 1818 link_mask = 0x0f1f0000; 1819 link_val = 0x0f0f0000; 1820 break; 1821 } 1822 1823 u32temp = nes_read_indexed(nesdev, 1824 NES_IDX_PHY_PCS_CONTROL_STATUS0 + 1825 (0x200 * (nesdev->mac_index & 1))); 1826 1827 if (phy_type == NES_PHY_TYPE_SFP_D) { 1828 if (phy_data & 0x0004) 1829 nesvnic->linkup = 1; 1830 } else { 1831 if ((u32temp & link_mask) == link_val) 1832 nesvnic->linkup = 1; 1833 } 1834 1835 /* clear the MAC interrupt status, assumes direct logical to physical mapping */ 1836 u32temp = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (0x200 * nesdev->mac_index)); 1837 nes_debug(NES_DBG_INIT, "Phy interrupt status = 0x%X.\n", u32temp); 1838 nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (0x200 * nesdev->mac_index), u32temp); 1839 1840 nes_init_phy(nesdev); 1841 } 1842 1843 nes_vlan_mode(netdev, nesdev, netdev->features); 1844 1845 return netdev; 1846} 1847 1848 1849/** 1850 * nes_netdev_destroy - destroy network device structure 1851 */ 1852void nes_netdev_destroy(struct net_device *netdev) 1853{ 1854 struct nes_vnic *nesvnic = netdev_priv(netdev); 1855 1856 /* make sure 'stop' method is called by Linux stack */ 1857 /* nes_netdev_stop(netdev); */ 1858 1859 list_del(&nesvnic->list); 1860 1861 if (nesvnic->of_device_registered) { 1862 nes_destroy_ofa_device(nesvnic->nesibdev); 1863 } 1864 1865 free_netdev(netdev); 1866} 1867 1868 1869/** 1870 * nes_nic_cm_xmit -- CM calls this to send out pkts 1871 */ 1872int nes_nic_cm_xmit(struct sk_buff *skb, struct net_device *netdev) 1873{ 1874 int ret; 1875 1876 skb->dev = netdev; 1877 ret = dev_queue_xmit(skb); 1878 if (ret) { 1879 nes_debug(NES_DBG_CM, "Bad return code from dev_queue_xmit %d\n", ret); 1880 } 1881 1882 return ret; 1883} 1884