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Amit S. Kale3d396eb2006-10-21 15:33:03 -04001/*
Dhananjay Phadke5d242f12009-02-25 15:57:56 +00002 * Copyright (C) 2003 - 2009 NetXen, Inc.
Amit S. Kale3d396eb2006-10-21 15:33:03 -04003 * All rights reserved.
Amit S. Kale80922fb2006-12-04 09:18:00 -08004 *
Amit S. Kale3d396eb2006-10-21 15:33:03 -04005 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
Amit S. Kale80922fb2006-12-04 09:18:00 -08009 *
Amit S. Kale3d396eb2006-10-21 15:33:03 -040010 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
Amit S. Kale80922fb2006-12-04 09:18:00 -080014 *
Amit S. Kale3d396eb2006-10-21 15:33:03 -040015 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
18 * MA 02111-1307, USA.
Amit S. Kale80922fb2006-12-04 09:18:00 -080019 *
Amit S. Kale3d396eb2006-10-21 15:33:03 -040020 * The full GNU General Public License is included in this distribution
21 * in the file called LICENSE.
Amit S. Kale80922fb2006-12-04 09:18:00 -080022 *
Amit S. Kale3d396eb2006-10-21 15:33:03 -040023 * Contact Information:
24 * info@netxen.com
Dhananjay Phadke5d242f12009-02-25 15:57:56 +000025 * NetXen Inc,
26 * 18922 Forge Drive
27 * Cupertino, CA 95014-0701
Amit S. Kale3d396eb2006-10-21 15:33:03 -040028 *
29 */
30
Amit S. Kalecb8011a2006-11-29 09:00:10 -080031#include <linux/vmalloc.h>
Dhananjay Phadkee98e3352009-04-07 22:50:38 +000032#include <linux/interrupt.h>
Amit S. Kale3d396eb2006-10-21 15:33:03 -040033#include "netxen_nic_hw.h"
34
35#include "netxen_nic.h"
Amit S. Kale3d396eb2006-10-21 15:33:03 -040036#include "netxen_nic_phan_reg.h"
Amit S. Kale3d396eb2006-10-21 15:33:03 -040037
Jeff Garzik1494a812006-11-07 05:12:16 -050038#include <linux/dma-mapping.h>
Dhananjay Phadke391587c2009-01-14 20:48:11 -080039#include <linux/if_vlan.h>
Arnaldo Carvalho de Meloc9bdd4b2007-03-12 20:09:15 -030040#include <net/ip.h>
Dhananjay Phadke00977782009-01-16 11:03:25 -080041#include <linux/ipv6.h>
Jeff Garzik1494a812006-11-07 05:12:16 -050042
Amit S. Kale3d396eb2006-10-21 15:33:03 -040043MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
44MODULE_LICENSE("GPL");
45MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
46
dhananjay@netxen.comceded322007-07-19 14:41:09 +053047char netxen_nic_driver_name[] = "netxen_nic";
Amit S. Kale3d396eb2006-10-21 15:33:03 -040048static char netxen_nic_driver_string[] = "NetXen Network Driver version "
Amit S. Kalecb8011a2006-11-29 09:00:10 -080049 NETXEN_NIC_LINUX_VERSIONID;
Amit S. Kale3d396eb2006-10-21 15:33:03 -040050
Dhananjay Phadke29566402008-07-21 19:44:04 -070051static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
52
53/* Default to restricted 1G auto-neg mode */
54static int wol_port_mode = 5;
55
56static int use_msi = 1;
57
58static int use_msi_x = 1;
59
Amit S. Kale3d396eb2006-10-21 15:33:03 -040060/* Local functions to NetXen NIC driver */
61static int __devinit netxen_nic_probe(struct pci_dev *pdev,
Dhananjay Phadke29566402008-07-21 19:44:04 -070062 const struct pci_device_id *ent);
Amit S. Kale3d396eb2006-10-21 15:33:03 -040063static void __devexit netxen_nic_remove(struct pci_dev *pdev);
64static int netxen_nic_open(struct net_device *netdev);
65static int netxen_nic_close(struct net_device *netdev);
66static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *);
67static void netxen_tx_timeout(struct net_device *netdev);
David Howells6d5aefb2006-12-05 19:36:26 +000068static void netxen_tx_timeout_task(struct work_struct *work);
Amit S. Kale3d396eb2006-10-21 15:33:03 -040069static void netxen_watchdog(unsigned long);
Stephen Hemmingerbea33482007-10-03 16:41:36 -070070static int netxen_nic_poll(struct napi_struct *napi, int budget);
Amit S. Kale3d396eb2006-10-21 15:33:03 -040071#ifdef CONFIG_NET_POLL_CONTROLLER
72static void netxen_nic_poll_controller(struct net_device *netdev);
73#endif
Jeff Garzik1494a812006-11-07 05:12:16 -050074static irqreturn_t netxen_intr(int irq, void *data);
Dhananjay Phadke05aaa022008-03-17 19:59:49 -070075static irqreturn_t netxen_msi_intr(int irq, void *data);
Dhananjay Phadkeb3df68f2009-02-08 19:20:19 -080076static irqreturn_t netxen_msix_intr(int irq, void *data);
Amit S. Kale3d396eb2006-10-21 15:33:03 -040077
78/* PCI Device ID Table */
Al Viro70081ac2008-06-23 02:04:50 +010079#define ENTRY(device) \
Dhananjay Phadke040dec32008-09-12 06:55:14 -070080 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
Al Viro70081ac2008-06-23 02:04:50 +010081 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
82
Amit S. Kale3d396eb2006-10-21 15:33:03 -040083static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
Dhananjay Phadke040dec32008-09-12 06:55:14 -070084 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
85 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
86 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
87 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
88 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
89 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
90 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
91 ENTRY(PCI_DEVICE_ID_NX3031),
Amit S. Kale3d396eb2006-10-21 15:33:03 -040092 {0,}
93};
94
95MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
96
Amit S. Kaleed25ffa2006-12-04 09:23:25 -080097static void netxen_watchdog(unsigned long);
98
Dhananjay Phadke7830b222008-07-21 19:44:00 -070099static uint32_t crb_cmd_producer[4] = {
100 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
101 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
102};
103
Dhananjay Phadkec9fc8912008-07-21 19:44:07 -0700104void
Dhananjay Phadke3ce06a32008-07-21 19:44:03 -0700105netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
Dhananjay Phadkecb2107b2009-06-17 17:27:25 +0000106 struct nx_host_tx_ring *tx_ring)
Mithlesh Thukral3176ff32007-04-20 07:52:37 -0700107{
Dhananjay Phadkecb2107b2009-06-17 17:27:25 +0000108 NXWR32(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
109
110 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
111 netif_stop_queue(adapter->netdev);
112 smp_mb();
113 }
Mithlesh Thukral3176ff32007-04-20 07:52:37 -0700114}
115
Dhananjay Phadke7830b222008-07-21 19:44:00 -0700116static uint32_t crb_cmd_consumer[4] = {
117 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
118 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
119};
120
Dhananjay Phadke3ce06a32008-07-21 19:44:03 -0700121static inline void
122netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
Dhananjay Phadkecb2107b2009-06-17 17:27:25 +0000123 struct nx_host_tx_ring *tx_ring)
Mithlesh Thukral3176ff32007-04-20 07:52:37 -0700124{
Dhananjay Phadkecb2107b2009-06-17 17:27:25 +0000125 NXWR32(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
Mithlesh Thukral3176ff32007-04-20 07:52:37 -0700126}
127
Dhananjay Phadke29566402008-07-21 19:44:04 -0700128static uint32_t msi_tgt_status[8] = {
Dhananjay Phadke443be792008-03-17 19:59:48 -0700129 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
Dhananjay Phadke29566402008-07-21 19:44:04 -0700130 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
131 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
132 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
Dhananjay Phadke443be792008-03-17 19:59:48 -0700133};
134
Dhananjay Phadke29566402008-07-21 19:44:04 -0700135static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
136
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000137static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
Stephen Hemminger4638aef12007-07-05 16:13:55 -0700138{
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000139 struct netxen_adapter *adapter = sds_ring->adapter;
140
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000141 NXWR32(adapter, sds_ring->crb_intr_mask, 0);
Stephen Hemminger4638aef12007-07-05 16:13:55 -0700142}
143
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000144static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
Stephen Hemminger4638aef12007-07-05 16:13:55 -0700145{
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000146 struct netxen_adapter *adapter = sds_ring->adapter;
147
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000148 NXWR32(adapter, sds_ring->crb_intr_mask, 0x1);
Stephen Hemminger4638aef12007-07-05 16:13:55 -0700149
Dhananjay Phadke092bc572008-08-08 00:08:43 -0700150 if (!NETXEN_IS_MSI_FAMILY(adapter))
151 adapter->pci_write_immediate(adapter,
152 adapter->legacy_intr.tgt_mask_reg, 0xfbff);
Stephen Hemminger4638aef12007-07-05 16:13:55 -0700153}
154
Dhananjay Phadke71dcddb2009-04-07 22:50:43 +0000155static int
156netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
157{
158 int size = sizeof(struct nx_host_sds_ring) * count;
159
160 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
161
162 return (recv_ctx->sds_rings == NULL);
163}
164
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000165static void
Dhananjay Phadke71dcddb2009-04-07 22:50:43 +0000166netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
167{
168 if (recv_ctx->sds_rings != NULL)
169 kfree(recv_ctx->sds_rings);
Dhananjay Phadke232e7d62009-08-13 07:03:01 +0000170
171 recv_ctx->sds_rings = NULL;
Dhananjay Phadke71dcddb2009-04-07 22:50:43 +0000172}
173
174static int
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000175netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
176{
177 int ring;
178 struct nx_host_sds_ring *sds_ring;
179 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
180
Dhananjay Phadke71dcddb2009-04-07 22:50:43 +0000181 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
182 return 1;
183
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000184 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
185 sds_ring = &recv_ctx->sds_rings[ring];
186 netif_napi_add(netdev, &sds_ring->napi,
187 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
188 }
Dhananjay Phadke71dcddb2009-04-07 22:50:43 +0000189
190 return 0;
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000191}
192
193static void
Dhananjay Phadke232e7d62009-08-13 07:03:01 +0000194netxen_napi_del(struct netxen_adapter *adapter)
195{
196 int ring;
197 struct nx_host_sds_ring *sds_ring;
198 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
199
200 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
201 sds_ring = &recv_ctx->sds_rings[ring];
202 netif_napi_del(&sds_ring->napi);
203 }
204
205 netxen_free_sds_rings(&adapter->recv_ctx);
206}
207
208static void
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000209netxen_napi_enable(struct netxen_adapter *adapter)
210{
211 int ring;
212 struct nx_host_sds_ring *sds_ring;
213 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
214
215 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
216 sds_ring = &recv_ctx->sds_rings[ring];
217 napi_enable(&sds_ring->napi);
218 netxen_nic_enable_int(sds_ring);
219 }
220}
221
222static void
223netxen_napi_disable(struct netxen_adapter *adapter)
224{
225 int ring;
226 struct nx_host_sds_ring *sds_ring;
227 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
228
229 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
230 sds_ring = &recv_ctx->sds_rings[ring];
Dhananjay Phadkebe339ae2009-05-08 22:02:28 +0000231 netxen_nic_disable_int(sds_ring);
Dhananjay Phadkeb2af9cb2009-07-17 15:27:07 +0000232 napi_synchronize(&sds_ring->napi);
233 napi_disable(&sds_ring->napi);
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000234 }
235}
236
Dhananjay Phadke50c643e2009-08-01 21:36:16 +0000237static int nx_set_dma_mask(struct netxen_adapter *adapter)
Dhananjay Phadke29566402008-07-21 19:44:04 -0700238{
239 struct pci_dev *pdev = adapter->pdev;
Dhananjay Phadke1f434f62009-03-02 16:02:16 +0000240 uint64_t mask, cmask;
Dhananjay Phadke29566402008-07-21 19:44:04 -0700241
Dhananjay Phadke1f434f62009-03-02 16:02:16 +0000242 adapter->pci_using_dac = 0;
Dhananjay Phadke29566402008-07-21 19:44:04 -0700243
Yang Hongyang6afd1422009-04-06 19:01:15 -0700244 mask = DMA_BIT_MASK(32);
Yang Hongyang6afd1422009-04-06 19:01:15 -0700245 cmask = DMA_BIT_MASK(32);
Dhananjay Phadke1f434f62009-03-02 16:02:16 +0000246
Dhananjay Phadke50c643e2009-08-01 21:36:16 +0000247 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
Dhananjay Phadke1f434f62009-03-02 16:02:16 +0000248#ifndef CONFIG_IA64
Yang Hongyang6afd1422009-04-06 19:01:15 -0700249 mask = DMA_BIT_MASK(35);
Dhananjay Phadke1f434f62009-03-02 16:02:16 +0000250#endif
Dhananjay Phadke50c643e2009-08-01 21:36:16 +0000251 } else {
252 mask = DMA_BIT_MASK(39);
253 cmask = mask;
254 }
255
Dhananjay Phadke29566402008-07-21 19:44:04 -0700256 if (pci_set_dma_mask(pdev, mask) == 0 &&
Dhananjay Phadke1f434f62009-03-02 16:02:16 +0000257 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
Dhananjay Phadke29566402008-07-21 19:44:04 -0700258 adapter->pci_using_dac = 1;
259 return 0;
260 }
Dhananjay Phadke29566402008-07-21 19:44:04 -0700261
Dhananjay Phadke1f434f62009-03-02 16:02:16 +0000262 return -EIO;
263}
264
265/* Update addressable range if firmware supports it */
266static int
267nx_update_dma_mask(struct netxen_adapter *adapter)
268{
269 int change, shift, err;
Dhananjay Phadke50c643e2009-08-01 21:36:16 +0000270 uint64_t mask, old_mask, old_cmask;
Dhananjay Phadke1f434f62009-03-02 16:02:16 +0000271 struct pci_dev *pdev = adapter->pdev;
272
273 change = 0;
274
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000275 shift = NXRD32(adapter, CRB_DMA_SHIFT);
Dhananjay Phadkef60f7852009-08-04 10:39:03 +0000276 if (shift > 32)
Dhananjay Phadke1f434f62009-03-02 16:02:16 +0000277 return 0;
278
279 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
280 change = 1;
281 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
282 change = 1;
283
284 if (change) {
285 old_mask = pdev->dma_mask;
Dhananjay Phadke50c643e2009-08-01 21:36:16 +0000286 old_cmask = pdev->dev.coherent_dma_mask;
287
Dhananjay Phadkef60f7852009-08-04 10:39:03 +0000288 mask = DMA_BIT_MASK(32+shift);
Dhananjay Phadke1f434f62009-03-02 16:02:16 +0000289
290 err = pci_set_dma_mask(pdev, mask);
291 if (err)
Dhananjay Phadke50c643e2009-08-01 21:36:16 +0000292 goto err_out;
293
294 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
295
296 err = pci_set_consistent_dma_mask(pdev, mask);
297 if (err)
298 goto err_out;
299 }
300 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
Dhananjay Phadke29566402008-07-21 19:44:04 -0700301 }
302
Dhananjay Phadke29566402008-07-21 19:44:04 -0700303 return 0;
Dhananjay Phadke50c643e2009-08-01 21:36:16 +0000304
305err_out:
306 pci_set_dma_mask(pdev, old_mask);
307 pci_set_consistent_dma_mask(pdev, old_cmask);
308 return err;
Dhananjay Phadke29566402008-07-21 19:44:04 -0700309}
310
311static void netxen_check_options(struct netxen_adapter *adapter)
312{
Dhananjay Phadke438627c2009-03-13 14:52:03 +0000313 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
314 adapter->num_rxd = MAX_RCV_DESCRIPTORS_10G;
315 else if (adapter->ahw.port_type == NETXEN_NIC_GBE)
316 adapter->num_rxd = MAX_RCV_DESCRIPTORS_1G;
317
Dhananjay Phadkef6d21f42009-04-07 22:50:46 +0000318 adapter->msix_supported = 0;
319 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
Dhananjay Phadke29566402008-07-21 19:44:04 -0700320 adapter->msix_supported = !!use_msi_x;
Dhananjay Phadkef6d21f42009-04-07 22:50:46 +0000321 adapter->rss_supported = !!use_msi_x;
322 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
323 switch (adapter->ahw.board_type) {
324 case NETXEN_BRDTYPE_P2_SB31_10G:
325 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
Dhananjay Phadkef6d21f42009-04-07 22:50:46 +0000326 adapter->msix_supported = !!use_msi_x;
327 adapter->rss_supported = !!use_msi_x;
328 break;
329 default:
330 break;
331 }
332 }
Dhananjay Phadke29566402008-07-21 19:44:04 -0700333
Dhananjay Phadke438627c2009-03-13 14:52:03 +0000334 adapter->num_txd = MAX_CMD_DESCRIPTORS_HOST;
335 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS;
336 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
Dhananjay Phadke29566402008-07-21 19:44:04 -0700337
Dhananjay Phadke29566402008-07-21 19:44:04 -0700338 return;
339}
340
341static int
342netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
343{
Dhananjay Phadke27c915a2009-01-14 20:49:00 -0800344 u32 val, timeout;
Dhananjay Phadke29566402008-07-21 19:44:04 -0700345
346 if (first_boot == 0x55555555) {
347 /* This is the first boot after power up */
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000348 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
Dhananjay Phadke27c915a2009-01-14 20:49:00 -0800349
350 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
351 return 0;
Dhananjay Phadke29566402008-07-21 19:44:04 -0700352
353 /* PCI bus master workaround */
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000354 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
Dhananjay Phadke29566402008-07-21 19:44:04 -0700355 if (!(first_boot & 0x4)) {
356 first_boot |= 0x4;
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000357 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
358 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
Dhananjay Phadke29566402008-07-21 19:44:04 -0700359 }
360
361 /* This is the first boot after power up */
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000362 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
Dhananjay Phadke29566402008-07-21 19:44:04 -0700363 if (first_boot != 0x80000f) {
364 /* clear the register for future unloads/loads */
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000365 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
Dhananjay Phadke27c915a2009-01-14 20:49:00 -0800366 return -EIO;
Dhananjay Phadke29566402008-07-21 19:44:04 -0700367 }
368
Dhananjay Phadke27c915a2009-01-14 20:49:00 -0800369 /* Start P2 boot loader */
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000370 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
371 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
Dhananjay Phadke27c915a2009-01-14 20:49:00 -0800372 timeout = 0;
373 do {
374 msleep(1);
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000375 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
Dhananjay Phadke27c915a2009-01-14 20:49:00 -0800376
377 if (++timeout > 5000)
378 return -EIO;
379
380 } while (val == NETXEN_BDINFO_MAGIC);
Dhananjay Phadke29566402008-07-21 19:44:04 -0700381 }
Dhananjay Phadke27c915a2009-01-14 20:49:00 -0800382 return 0;
Dhananjay Phadke29566402008-07-21 19:44:04 -0700383}
384
385static void netxen_set_port_mode(struct netxen_adapter *adapter)
386{
387 u32 val, data;
388
Dhananjay Phadke1e2d0052009-03-09 08:50:56 +0000389 val = adapter->ahw.board_type;
Dhananjay Phadke29566402008-07-21 19:44:04 -0700390 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
391 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
392 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
393 data = NETXEN_PORT_MODE_802_3_AP;
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000394 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
Dhananjay Phadke29566402008-07-21 19:44:04 -0700395 } else if (port_mode == NETXEN_PORT_MODE_XG) {
396 data = NETXEN_PORT_MODE_XG;
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000397 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
Dhananjay Phadke29566402008-07-21 19:44:04 -0700398 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
399 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000400 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
Dhananjay Phadke29566402008-07-21 19:44:04 -0700401 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
402 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000403 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
Dhananjay Phadke29566402008-07-21 19:44:04 -0700404 } else {
405 data = NETXEN_PORT_MODE_AUTO_NEG;
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000406 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
Dhananjay Phadke29566402008-07-21 19:44:04 -0700407 }
408
409 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
410 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
411 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
412 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
413 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
414 }
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000415 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
Dhananjay Phadke29566402008-07-21 19:44:04 -0700416 }
417}
418
Dhananjay Phadke29566402008-07-21 19:44:04 -0700419static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
420{
421 u32 control;
422 int pos;
423
424 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
425 if (pos) {
426 pci_read_config_dword(pdev, pos, &control);
427 if (enable)
428 control |= PCI_MSIX_FLAGS_ENABLE;
429 else
430 control = 0;
431 pci_write_config_dword(pdev, pos, control);
432 }
433}
434
Dhananjay Phadkebe339ae2009-05-08 22:02:28 +0000435static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
Dhananjay Phadke29566402008-07-21 19:44:04 -0700436{
437 int i;
438
Dhananjay Phadkebe339ae2009-05-08 22:02:28 +0000439 for (i = 0; i < count; i++)
Dhananjay Phadke29566402008-07-21 19:44:04 -0700440 adapter->msix_entries[i].entry = i;
441}
442
Dhananjay Phadke9dc28ef2008-08-08 00:08:39 -0700443static int
444netxen_read_mac_addr(struct netxen_adapter *adapter)
445{
446 int i;
447 unsigned char *p;
448 __le64 mac_addr;
Dhananjay Phadke9dc28ef2008-08-08 00:08:39 -0700449 struct net_device *netdev = adapter->netdev;
450 struct pci_dev *pdev = adapter->pdev;
451
Dhananjay Phadke9dc28ef2008-08-08 00:08:39 -0700452 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
453 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
454 return -EIO;
455 } else {
456 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
457 return -EIO;
458 }
459
460 p = (unsigned char *)&mac_addr;
461 for (i = 0; i < 6; i++)
462 netdev->dev_addr[i] = *(p + 5 - i);
463
464 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
465
466 /* set station address */
467
Johannes Berge1749612008-10-27 15:59:26 -0700468 if (!is_valid_ether_addr(netdev->perm_addr))
469 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
Dhananjay Phadke9dc28ef2008-08-08 00:08:39 -0700470
471 return 0;
472}
473
Dhananjay Phadke3d0a3cc2009-05-05 19:05:08 +0000474int netxen_nic_set_mac(struct net_device *netdev, void *p)
475{
476 struct netxen_adapter *adapter = netdev_priv(netdev);
477 struct sockaddr *addr = p;
478
479 if (!is_valid_ether_addr(addr->sa_data))
480 return -EINVAL;
481
482 if (netif_running(netdev)) {
483 netif_device_detach(netdev);
484 netxen_napi_disable(adapter);
485 }
486
487 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
488 adapter->macaddr_set(adapter, addr->sa_data);
489
490 if (netif_running(netdev)) {
491 netif_device_attach(netdev);
492 netxen_napi_enable(adapter);
493 }
494 return 0;
495}
496
Stephen Hemminger1abd2662008-11-21 17:32:15 -0800497static void netxen_set_multicast_list(struct net_device *dev)
498{
499 struct netxen_adapter *adapter = netdev_priv(dev);
500
Dhananjay Phadke3d0a3cc2009-05-05 19:05:08 +0000501 adapter->set_multi(dev);
Stephen Hemminger1abd2662008-11-21 17:32:15 -0800502}
503
504static const struct net_device_ops netxen_netdev_ops = {
505 .ndo_open = netxen_nic_open,
506 .ndo_stop = netxen_nic_close,
507 .ndo_start_xmit = netxen_nic_xmit_frame,
508 .ndo_get_stats = netxen_nic_get_stats,
509 .ndo_validate_addr = eth_validate_addr,
510 .ndo_set_multicast_list = netxen_set_multicast_list,
511 .ndo_set_mac_address = netxen_nic_set_mac,
512 .ndo_change_mtu = netxen_nic_change_mtu,
513 .ndo_tx_timeout = netxen_tx_timeout,
514#ifdef CONFIG_NET_POLL_CONTROLLER
515 .ndo_poll_controller = netxen_nic_poll_controller,
516#endif
517};
518
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800519static void
520netxen_setup_intr(struct netxen_adapter *adapter)
521{
522 struct netxen_legacy_intr_set *legacy_intrp;
523 struct pci_dev *pdev = adapter->pdev;
Dhananjay Phadkebe339ae2009-05-08 22:02:28 +0000524 int err, num_msix;
525
526 if (adapter->rss_supported) {
527 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
528 MSIX_ENTRIES_PER_ADAPTER : 2;
529 } else
530 num_msix = 1;
531
532 adapter->max_sds_rings = 1;
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800533
534 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800535
536 if (adapter->ahw.revision_id >= NX_P3_B0)
537 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
538 else
539 legacy_intrp = &legacy_intr[0];
540 adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit;
541 adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg;
542 adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg;
543 adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg;
544
545 netxen_set_msix_bit(pdev, 0);
546
547 if (adapter->msix_supported) {
548
Dhananjay Phadkebe339ae2009-05-08 22:02:28 +0000549 netxen_init_msix_entries(adapter, num_msix);
550 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
551 if (err == 0) {
552 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
553 netxen_set_msix_bit(pdev, 1);
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800554
Dhananjay Phadkebe339ae2009-05-08 22:02:28 +0000555 if (adapter->rss_supported)
556 adapter->max_sds_rings = num_msix;
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800557
Dhananjay Phadkebe339ae2009-05-08 22:02:28 +0000558 dev_info(&pdev->dev, "using msi-x interrupts\n");
559 return;
560 }
561
562 if (err > 0)
563 pci_disable_msix(pdev);
564
565 /* fall through for msi */
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800566 }
Dhananjay Phadkebe339ae2009-05-08 22:02:28 +0000567
568 if (use_msi && !pci_enable_msi(pdev)) {
569 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
570 adapter->msi_tgt_status =
571 msi_tgt_status[adapter->ahw.pci_func];
572 dev_info(&pdev->dev, "using msi interrupts\n");
Dhananjay Phadkef67f3402009-05-18 21:46:40 -0700573 adapter->msix_entries[0].vector = pdev->irq;
Dhananjay Phadkebe339ae2009-05-08 22:02:28 +0000574 return;
575 }
576
577 dev_info(&pdev->dev, "using legacy interrupts\n");
578 adapter->msix_entries[0].vector = pdev->irq;
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800579}
580
581static void
582netxen_teardown_intr(struct netxen_adapter *adapter)
583{
584 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
585 pci_disable_msix(adapter->pdev);
586 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
587 pci_disable_msi(adapter->pdev);
588}
589
590static void
591netxen_cleanup_pci_map(struct netxen_adapter *adapter)
592{
593 if (adapter->ahw.db_base != NULL)
594 iounmap(adapter->ahw.db_base);
595 if (adapter->ahw.pci_base0 != NULL)
596 iounmap(adapter->ahw.pci_base0);
597 if (adapter->ahw.pci_base1 != NULL)
598 iounmap(adapter->ahw.pci_base1);
599 if (adapter->ahw.pci_base2 != NULL)
600 iounmap(adapter->ahw.pci_base2);
601}
602
603static int
604netxen_setup_pci_map(struct netxen_adapter *adapter)
605{
606 void __iomem *mem_ptr0 = NULL;
607 void __iomem *mem_ptr1 = NULL;
608 void __iomem *mem_ptr2 = NULL;
609 void __iomem *db_ptr = NULL;
610
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800611 unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0;
612
613 struct pci_dev *pdev = adapter->pdev;
614 int pci_func = adapter->ahw.pci_func;
615
616 int err = 0;
617
618 /*
619 * Set the CRB window to invalid. If any register in window 0 is
620 * accessed it should set the window to 0 and then reset it to 1.
621 */
622 adapter->curr_window = 255;
623 adapter->ahw.qdr_sn_window = -1;
624 adapter->ahw.ddr_mn_window = -1;
625
626 /* remap phys address */
627 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
628 mem_len = pci_resource_len(pdev, 0);
629 pci_len0 = 0;
630
631 adapter->hw_write_wx = netxen_nic_hw_write_wx_128M;
632 adapter->hw_read_wx = netxen_nic_hw_read_wx_128M;
633 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M;
634 adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M;
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800635 adapter->pci_set_window = netxen_nic_pci_set_window_128M;
636 adapter->pci_mem_read = netxen_nic_pci_mem_read_128M;
637 adapter->pci_mem_write = netxen_nic_pci_mem_write_128M;
638
639 /* 128 Meg of memory */
640 if (mem_len == NETXEN_PCI_128MB_SIZE) {
641 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
642 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
643 SECOND_PAGE_GROUP_SIZE);
644 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
645 THIRD_PAGE_GROUP_SIZE);
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800646 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
647 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
648 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
649 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800650 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
651 adapter->hw_write_wx = netxen_nic_hw_write_wx_2M;
652 adapter->hw_read_wx = netxen_nic_hw_read_wx_2M;
653 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M;
654 adapter->pci_write_immediate =
655 netxen_nic_pci_write_immediate_2M;
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800656 adapter->pci_set_window = netxen_nic_pci_set_window_2M;
657 adapter->pci_mem_read = netxen_nic_pci_mem_read_2M;
658 adapter->pci_mem_write = netxen_nic_pci_mem_write_2M;
659
660 mem_ptr0 = pci_ioremap_bar(pdev, 0);
661 if (mem_ptr0 == NULL) {
662 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
663 return -EIO;
664 }
665 pci_len0 = mem_len;
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800666
667 adapter->ahw.ddr_mn_window = 0;
668 adapter->ahw.qdr_sn_window = 0;
669
670 adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW +
671 (pci_func * 0x20);
672 adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW;
673 if (pci_func < 4)
674 adapter->ahw.ms_win_crb += (pci_func * 0x20);
675 else
676 adapter->ahw.ms_win_crb +=
677 0xA0 + ((pci_func - 4) * 0x10);
678 } else {
679 return -EIO;
680 }
681
682 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
683
684 adapter->ahw.pci_base0 = mem_ptr0;
685 adapter->ahw.pci_len0 = pci_len0;
Dhananjay Phadke97daee82009-02-24 16:39:21 -0800686 adapter->ahw.pci_base1 = mem_ptr1;
687 adapter->ahw.pci_base2 = mem_ptr2;
688
689 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
690 goto skip_doorbell;
691
692 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
693 db_len = pci_resource_len(pdev, 4);
694
695 if (db_len == 0) {
696 printk(KERN_ERR "%s: doorbell is disabled\n",
697 netxen_nic_driver_name);
698 err = -EIO;
699 goto err_out;
700 }
701
702 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
703 if (!db_ptr) {
704 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
705 netxen_nic_driver_name);
706 err = -EIO;
707 goto err_out;
708 }
709
710skip_doorbell:
711 adapter->ahw.db_base = db_ptr;
712 adapter->ahw.db_len = db_len;
713 return 0;
714
715err_out:
716 netxen_cleanup_pci_map(adapter);
717 return err;
718}
719
Dhananjay Phadkeba599d42009-02-24 16:38:22 -0800720static int
Dhananjay Phadkef7185c72009-04-28 15:29:11 +0000721netxen_start_firmware(struct netxen_adapter *adapter, int request_fw)
Dhananjay Phadkeba599d42009-02-24 16:38:22 -0800722{
723 int val, err, first_boot;
724 struct pci_dev *pdev = adapter->pdev;
725
Dhananjay Phadke0b72e652009-03-13 14:52:02 +0000726 int first_driver = 0;
Dhananjay Phadkef7185c72009-04-28 15:29:11 +0000727
728 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
729 first_driver = (adapter->portnum == 0);
730 else
731 first_driver = (adapter->ahw.pci_func == 0);
Dhananjay Phadke0b72e652009-03-13 14:52:02 +0000732
733 if (!first_driver)
Dhananjay Phadke96f2ebd2009-06-22 20:26:21 +0000734 goto wait_init;
Dhananjay Phadke0b72e652009-03-13 14:52:02 +0000735
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000736 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
Dhananjay Phadkeba599d42009-02-24 16:38:22 -0800737
738 err = netxen_check_hw_init(adapter, first_boot);
739 if (err) {
740 dev_err(&pdev->dev, "error in init HW init sequence\n");
741 return err;
742 }
743
Dhananjay Phadkef7185c72009-04-28 15:29:11 +0000744 if (request_fw)
745 netxen_request_firmware(adapter);
746
Dhananjay Phadke67c38fc2009-07-01 11:41:43 +0000747 err = netxen_need_fw_reset(adapter);
748 if (err <= 0)
749 return err;
750
Dhananjay Phadkeba599d42009-02-24 16:38:22 -0800751 if (first_boot != 0x55555555) {
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000752 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
Dhananjay Phadkeba599d42009-02-24 16:38:22 -0800753 netxen_pinit_from_rom(adapter, 0);
754 msleep(1);
755 }
Dhananjay Phadke567c6c42009-03-02 16:02:17 +0000756
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000757 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
Dhananjay Phadke567c6c42009-03-02 16:02:17 +0000758 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
759 netxen_set_port_mode(adapter);
760
Dhananjay Phadkeba599d42009-02-24 16:38:22 -0800761 netxen_load_firmware(adapter);
762
763 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
764
765 /* Initialize multicast addr pool owners */
766 val = 0x7654;
Dhananjay Phadke1e2d0052009-03-09 08:50:56 +0000767 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
Dhananjay Phadkeba599d42009-02-24 16:38:22 -0800768 val |= 0x0f000000;
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000769 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
Dhananjay Phadkeba599d42009-02-24 16:38:22 -0800770
771 }
772
773 err = netxen_initialize_adapter_offload(adapter);
774 if (err)
775 return err;
776
777 /*
778 * Tell the hardware our version number.
779 */
780 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
781 | ((_NETXEN_NIC_LINUX_MINOR << 8))
782 | (_NETXEN_NIC_LINUX_SUBVERSION);
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +0000783 NXWR32(adapter, CRB_DRIVER_VERSION, val);
Dhananjay Phadkeba599d42009-02-24 16:38:22 -0800784
Dhananjay Phadke96f2ebd2009-06-22 20:26:21 +0000785wait_init:
Dhananjay Phadkeba599d42009-02-24 16:38:22 -0800786 /* Handshake with the card before we register the devices. */
787 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
788 if (err) {
789 netxen_free_adapter_offload(adapter);
790 return err;
791 }
792
793 return 0;
794}
795
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000796static int
797netxen_nic_request_irq(struct netxen_adapter *adapter)
798{
799 irq_handler_t handler;
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000800 struct nx_host_sds_ring *sds_ring;
801 int err, ring;
802
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000803 unsigned long flags = IRQF_SAMPLE_RANDOM;
804 struct net_device *netdev = adapter->netdev;
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000805 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000806
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000807 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
808 handler = netxen_msix_intr;
809 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
810 handler = netxen_msi_intr;
811 else {
812 flags |= IRQF_SHARED;
813 handler = netxen_intr;
814 }
815 adapter->irq = netdev->irq;
816
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000817 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
818 sds_ring = &recv_ctx->sds_rings[ring];
Dhananjay Phadkebe339ae2009-05-08 22:02:28 +0000819 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000820 err = request_irq(sds_ring->irq, handler,
821 flags, sds_ring->name, sds_ring);
822 if (err)
823 return err;
824 }
825
826 return 0;
827}
828
829static void
830netxen_nic_free_irq(struct netxen_adapter *adapter)
831{
832 int ring;
833 struct nx_host_sds_ring *sds_ring;
834
835 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
836
837 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
838 sds_ring = &recv_ctx->sds_rings[ring];
839 free_irq(sds_ring->irq, sds_ring);
840 }
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000841}
842
843static int
844netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
845{
846 int err;
847
848 err = adapter->init_port(adapter, adapter->physical_port);
849 if (err) {
850 printk(KERN_ERR "%s: Failed to initialize port %d\n",
851 netxen_nic_driver_name, adapter->portnum);
852 return err;
853 }
Dhananjay Phadke3d0a3cc2009-05-05 19:05:08 +0000854 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
855 adapter->macaddr_set(adapter, netdev->dev_addr);
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000856
Dhananjay Phadke3d0a3cc2009-05-05 19:05:08 +0000857 adapter->set_multi(netdev);
858 adapter->set_mtu(adapter, netdev->mtu);
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000859
860 adapter->ahw.linkup = 0;
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000861
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000862 if (adapter->max_sds_rings > 1)
863 netxen_config_rss(adapter, 1);
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000864
Dhananjay Phadkeb2af9cb2009-07-17 15:27:07 +0000865 netxen_napi_enable(adapter);
866
Dhananjay Phadke5103c9f2009-04-28 15:29:09 +0000867 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
Dhananjay Phadke3bf26ce2009-04-07 22:50:42 +0000868 netxen_linkevent_request(adapter, 1);
Dhananjay Phadke3d0a3cc2009-05-05 19:05:08 +0000869 else
870 netxen_nic_set_link_parameters(adapter);
871
872 mod_timer(&adapter->watchdog_timer, jiffies);
Dhananjay Phadke3bf26ce2009-04-07 22:50:42 +0000873
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000874 return 0;
875}
876
877static void
878netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
879{
Dhananjay Phadkeb2af9cb2009-07-17 15:27:07 +0000880 spin_lock(&adapter->tx_clean_lock);
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000881 netif_carrier_off(netdev);
Dhananjay Phadkeb2af9cb2009-07-17 15:27:07 +0000882 netif_tx_disable(netdev);
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000883
884 if (adapter->stop_port)
885 adapter->stop_port(adapter);
886
Dhananjay Phadke5cf4d322009-05-05 19:05:07 +0000887 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
888 netxen_p3_free_mac_list(adapter);
889
Dhananjay Phadkebe339ae2009-05-08 22:02:28 +0000890 netxen_napi_disable(adapter);
891
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000892 netxen_release_tx_buffers(adapter);
Dhananjay Phadkeb2af9cb2009-07-17 15:27:07 +0000893 spin_unlock(&adapter->tx_clean_lock);
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000894
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000895 del_timer_sync(&adapter->watchdog_timer);
896}
897
898
899static int
900netxen_nic_attach(struct netxen_adapter *adapter)
901{
902 struct net_device *netdev = adapter->netdev;
903 struct pci_dev *pdev = adapter->pdev;
Dhananjay Phadkebecf46a2009-03-09 08:50:55 +0000904 int err, ring;
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000905 struct nx_host_rds_ring *rds_ring;
Dhananjay Phadked877f1e2009-04-07 22:50:40 +0000906 struct nx_host_tx_ring *tx_ring;
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000907
908 err = netxen_init_firmware(adapter);
Dhananjay Phadke232e7d62009-08-13 07:03:01 +0000909 if (err)
910 return err;
911
912 err = netxen_napi_add(adapter, netdev);
913 if (err)
914 return err;
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000915
916 if (adapter->fw_major < 4)
917 adapter->max_rds_rings = 3;
918 else
919 adapter->max_rds_rings = 2;
920
921 err = netxen_alloc_sw_resources(adapter);
922 if (err) {
923 printk(KERN_ERR "%s: Error in setting sw resources\n",
924 netdev->name);
925 return err;
926 }
927
928 netxen_nic_clear_stats(adapter);
929
930 err = netxen_alloc_hw_resources(adapter);
931 if (err) {
932 printk(KERN_ERR "%s: Error in setting hw resources\n",
933 netdev->name);
934 goto err_out_free_sw;
935 }
936
937 if (adapter->fw_major < 4) {
Dhananjay Phadke4ea528a2009-04-28 15:29:10 +0000938 tx_ring = adapter->tx_ring;
Dhananjay Phadked877f1e2009-04-07 22:50:40 +0000939 tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
940 tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000941
Dhananjay Phadkecb2107b2009-06-17 17:27:25 +0000942 tx_ring->producer = 0;
943 tx_ring->sw_consumer = 0;
944
945 netxen_nic_update_cmd_producer(adapter, tx_ring);
946 netxen_nic_update_cmd_consumer(adapter, tx_ring);
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000947 }
948
Dhananjay Phadked8b100c2009-03-13 14:52:05 +0000949 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
950 rds_ring = &adapter->recv_ctx.rds_rings[ring];
951 netxen_post_rx_buffers(adapter, ring, rds_ring);
952 }
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000953
954 err = netxen_nic_request_irq(adapter);
955 if (err) {
956 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
957 netdev->name);
958 goto err_out_free_rxbuf;
959 }
960
961 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
962 return 0;
963
964err_out_free_rxbuf:
965 netxen_release_rx_buffers(adapter);
966 netxen_free_hw_resources(adapter);
967err_out_free_sw:
968 netxen_free_sw_resources(adapter);
969 return err;
970}
971
972static void
973netxen_nic_detach(struct netxen_adapter *adapter)
974{
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000975 netxen_free_hw_resources(adapter);
Dhananjay Phadkecf981ff2009-07-17 15:27:06 +0000976 netxen_release_rx_buffers(adapter);
Dhananjay Phadkebe339ae2009-05-08 22:02:28 +0000977 netxen_nic_free_irq(adapter);
Dhananjay Phadke232e7d62009-08-13 07:03:01 +0000978 netxen_napi_del(adapter);
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +0000979 netxen_free_sw_resources(adapter);
980
981 adapter->is_up = 0;
982}
983
Amit S. Kale3d396eb2006-10-21 15:33:03 -0400984static int __devinit
985netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
986{
987 struct net_device *netdev = NULL;
988 struct netxen_adapter *adapter = NULL;
Dhananjay Phadke29566402008-07-21 19:44:04 -0700989 int i = 0, err;
Mithlesh Thukral3176ff32007-04-20 07:52:37 -0700990 int pci_func_id = PCI_FUNC(pdev->devfn);
Dhananjay Phadke29566402008-07-21 19:44:04 -0700991 uint8_t revision_id;
Amit S. Kale3d396eb2006-10-21 15:33:03 -0400992
Mithlesh Thukral3176ff32007-04-20 07:52:37 -0700993 if (pdev->class != 0x020000) {
Dhananjay Phadkedcd56fd2008-06-15 22:59:45 -0700994 printk(KERN_DEBUG "NetXen function %d, class %x will not "
Mithlesh Thukral3176ff32007-04-20 07:52:37 -0700995 "be enabled.\n",pci_func_id, pdev->class);
Amit S. Kaleed25ffa2006-12-04 09:23:25 -0800996 return -ENODEV;
997 }
Dhananjay Phadke29566402008-07-21 19:44:04 -0700998
Dhananjay Phadke11d89d62008-08-08 00:08:45 -0700999 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1000 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
1001 "will not be enabled.\n",
1002 NX_P3_A0, NX_P3_B1);
1003 return -ENODEV;
1004 }
1005
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001006 if ((err = pci_enable_device(pdev)))
1007 return err;
Dhananjay Phadke29566402008-07-21 19:44:04 -07001008
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001009 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1010 err = -ENODEV;
1011 goto err_out_disable_pdev;
1012 }
1013
1014 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1015 goto err_out_disable_pdev;
1016
1017 pci_set_master(pdev);
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001018
1019 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1020 if(!netdev) {
1021 printk(KERN_ERR"%s: Failed to allocate memory for the "
1022 "device block.Check system memory resource"
1023 " usage.\n", netxen_nic_driver_name);
1024 goto err_out_free_res;
1025 }
1026
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001027 SET_NETDEV_DEV(netdev, &pdev->dev);
1028
Wang Chen4cf16532008-11-12 23:38:14 -08001029 adapter = netdev_priv(netdev);
Dhananjay Phadke29566402008-07-21 19:44:04 -07001030 adapter->netdev = netdev;
1031 adapter->pdev = pdev;
Mithlesh Thukral13ba9c72007-04-20 07:53:05 -07001032 adapter->ahw.pci_func = pci_func_id;
Dhananjay Phadke29566402008-07-21 19:44:04 -07001033
1034 revision_id = pdev->revision;
1035 adapter->ahw.revision_id = revision_id;
1036
Dhananjay Phadke50c643e2009-08-01 21:36:16 +00001037 err = nx_set_dma_mask(adapter);
Dhananjay Phadke29566402008-07-21 19:44:04 -07001038 if (err)
1039 goto err_out_free_netdev;
1040
Dhananjay Phadke3ce06a32008-07-21 19:44:03 -07001041 rwlock_init(&adapter->adapter_lock);
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001042 spin_lock_init(&adapter->tx_clean_lock);
Dhananjay Phadke5cf4d322009-05-05 19:05:07 +00001043 INIT_LIST_HEAD(&adapter->mac_list);
Mithlesh Thukral13ba9c72007-04-20 07:53:05 -07001044
Dhananjay Phadke97daee82009-02-24 16:39:21 -08001045 err = netxen_setup_pci_map(adapter);
1046 if (err)
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001047 goto err_out_free_netdev;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001048
dhananjay.phadke@gmail.com2d1a3bb2007-07-02 00:26:00 +05301049 /* This will be reset for mezz cards */
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001050 adapter->portnum = pci_func_id;
Dhananjay Phadke200eef22007-09-03 10:33:35 +05301051 adapter->rx_csum = 1;
Dhananjay Phadke623621b2008-07-21 19:44:01 -07001052 adapter->mc_enabled = 0;
Dhananjay Phadke83821a02008-08-01 03:14:58 -07001053 if (NX_IS_REVISION_P3(revision_id))
Dhananjay Phadke29566402008-07-21 19:44:04 -07001054 adapter->max_mc_count = 38;
Dhananjay Phadke83821a02008-08-01 03:14:58 -07001055 else
Dhananjay Phadke29566402008-07-21 19:44:04 -07001056 adapter->max_mc_count = 16;
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001057
Stephen Hemminger1abd2662008-11-21 17:32:15 -08001058 netdev->netdev_ops = &netxen_netdev_ops;
Dhananjay Phadke05aaa022008-03-17 19:59:49 -07001059 netdev->watchdog_timeo = 2*HZ;
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001060
1061 netxen_nic_change_mtu(netdev, netdev->mtu);
1062
1063 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
Stephen Hemminger1abd2662008-11-21 17:32:15 -08001064
Dhananjay Phadkecdff1032009-01-26 12:34:57 -08001065 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
Amit Kumar Salechaa92e9e62009-04-07 22:50:47 +00001066 netdev->features |= (NETIF_F_GRO);
Dhananjay Phadkecdff1032009-01-26 12:34:57 -08001067 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1068
Dhananjay Phadkecd1f8162008-07-21 19:44:09 -07001069 if (NX_IS_REVISION_P3(revision_id)) {
Dhananjay Phadkecdff1032009-01-26 12:34:57 -08001070 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1071 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
Dhananjay Phadkecd1f8162008-07-21 19:44:09 -07001072 }
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001073
Dhananjay Phadkecdff1032009-01-26 12:34:57 -08001074 if (adapter->pci_using_dac) {
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001075 netdev->features |= NETIF_F_HIGHDMA;
Dhananjay Phadkecdff1032009-01-26 12:34:57 -08001076 netdev->vlan_features |= NETIF_F_HIGHDMA;
1077 }
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001078
Dhananjay Phadkedcd56fd2008-06-15 22:59:45 -07001079 if (netxen_nic_get_board_info(adapter) != 0) {
1080 printk("%s: Error getting board config info.\n",
Dhananjay Phadke29566402008-07-21 19:44:04 -07001081 netxen_nic_driver_name);
Dhananjay Phadkedcd56fd2008-06-15 22:59:45 -07001082 err = -EIO;
1083 goto err_out_iounmap;
1084 }
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001085
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001086 netxen_initialize_adapter_ops(adapter);
1087
Mithlesh Thukral13ba9c72007-04-20 07:53:05 -07001088 /* Mezz cards have PCI function 0,2,3 enabled */
Dhananjay Phadke1e2d0052009-03-09 08:50:56 +00001089 switch (adapter->ahw.board_type) {
Dhananjay Phadkedc515f22008-06-15 22:59:43 -07001090 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1091 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1092 if (pci_func_id >= 2)
Mithlesh Thukral13ba9c72007-04-20 07:53:05 -07001093 adapter->portnum = pci_func_id - 2;
Dhananjay Phadkedc515f22008-06-15 22:59:43 -07001094 break;
1095 default:
1096 break;
1097 }
Mithlesh Thukral13ba9c72007-04-20 07:53:05 -07001098
Dhananjay Phadkef7185c72009-04-28 15:29:11 +00001099 err = netxen_start_firmware(adapter, 1);
Dhananjay Phadke0b72e652009-03-13 14:52:02 +00001100 if (err)
1101 goto err_out_iounmap;
Dhananjay Phadke29566402008-07-21 19:44:04 -07001102
Dhananjay Phadke1f434f62009-03-02 16:02:16 +00001103 nx_update_dma_mask(adapter);
1104
Dhananjay Phadke1e2d0052009-03-09 08:50:56 +00001105 netxen_nic_get_firmware_info(adapter);
Dhananjay Phadked9e651b2008-07-21 19:44:08 -07001106
Dhananjay Phadke29566402008-07-21 19:44:04 -07001107 /*
1108 * See if the firmware gave us a virtual-physical port mapping.
1109 */
1110 adapter->physical_port = adapter->portnum;
Dhananjay Phadke044fad02009-02-24 03:42:59 -08001111 if (adapter->fw_major < 4) {
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +00001112 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
Dhananjay Phadke044fad02009-02-24 03:42:59 -08001113 if (i != 0x55555555)
1114 adapter->physical_port = i;
1115 }
Dhananjay Phadke29566402008-07-21 19:44:04 -07001116
Dhananjay Phadke438627c2009-03-13 14:52:03 +00001117 netxen_check_options(adapter);
Dhananjay Phadke29566402008-07-21 19:44:04 -07001118
Dhananjay Phadke97daee82009-02-24 16:39:21 -08001119 netxen_setup_intr(adapter);
Dhananjay Phadke29566402008-07-21 19:44:04 -07001120
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001121 netdev->irq = adapter->msix_entries[0].vector;
1122
Dhananjay Phadke29566402008-07-21 19:44:04 -07001123 init_timer(&adapter->watchdog_timer);
Dhananjay Phadke29566402008-07-21 19:44:04 -07001124 adapter->watchdog_timer.function = &netxen_watchdog;
1125 adapter->watchdog_timer.data = (unsigned long)adapter;
1126 INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
1127 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1128
Dhananjay Phadke9dc28ef2008-08-08 00:08:39 -07001129 err = netxen_read_mac_addr(adapter);
1130 if (err)
1131 dev_warn(&pdev->dev, "failed to read mac addr\n");
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001132
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001133 netif_carrier_off(netdev);
1134 netif_stop_queue(netdev);
1135
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001136 if ((err = register_netdev(netdev))) {
1137 printk(KERN_ERR "%s: register_netdev failed port #%d"
1138 " aborting\n", netxen_nic_driver_name,
1139 adapter->portnum);
1140 err = -EIO;
Dhananjay Phadke29566402008-07-21 19:44:04 -07001141 goto err_out_disable_msi;
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001142 }
1143
1144 pci_set_drvdata(pdev, adapter);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001145
Dhananjay Phadke1e2d0052009-03-09 08:50:56 +00001146 switch (adapter->ahw.port_type) {
Dhananjay Phadke29566402008-07-21 19:44:04 -07001147 case NETXEN_NIC_GBE:
1148 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1149 adapter->netdev->name);
1150 break;
1151 case NETXEN_NIC_XGBE:
1152 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1153 adapter->netdev->name);
1154 break;
1155 }
1156
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001157 return 0;
1158
Dhananjay Phadke29566402008-07-21 19:44:04 -07001159err_out_disable_msi:
Dhananjay Phadke97daee82009-02-24 16:39:21 -08001160 netxen_teardown_intr(adapter);
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001161
Dhananjay Phadke0b72e652009-03-13 14:52:02 +00001162 netxen_free_adapter_offload(adapter);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001163
Dhananjay Phadke29566402008-07-21 19:44:04 -07001164err_out_iounmap:
Dhananjay Phadke97daee82009-02-24 16:39:21 -08001165 netxen_cleanup_pci_map(adapter);
Amit S. Kalecb8011a2006-11-29 09:00:10 -08001166
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001167err_out_free_netdev:
1168 free_netdev(netdev);
1169
1170err_out_free_res:
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001171 pci_release_regions(pdev);
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001172
1173err_out_disable_pdev:
Dhananjay Phadke29566402008-07-21 19:44:04 -07001174 pci_set_drvdata(pdev, NULL);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001175 pci_disable_device(pdev);
1176 return err;
1177}
1178
1179static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1180{
1181 struct netxen_adapter *adapter;
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001182 struct net_device *netdev;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001183
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001184 adapter = pci_get_drvdata(pdev);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001185 if (adapter == NULL)
1186 return;
1187
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001188 netdev = adapter->netdev;
1189
Dhananjay Phadke96acb6e2007-07-02 09:37:57 +05301190 unregister_netdev(netdev);
1191
Amit Kumar Salechae424fa92009-08-13 07:03:00 +00001192 cancel_work_sync(&adapter->watchdog_task);
1193 cancel_work_sync(&adapter->tx_timeout_task);
1194
Dhananjay Phadke96acb6e2007-07-02 09:37:57 +05301195 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +00001196 netxen_nic_detach(adapter);
Dhananjay Phadke96acb6e2007-07-02 09:37:57 +05301197 }
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001198
Dhananjay Phadke439b4542008-06-15 22:59:46 -07001199 if (adapter->portnum == 0)
1200 netxen_free_adapter_offload(adapter);
Dhananjay Phadke96acb6e2007-07-02 09:37:57 +05301201
Dhananjay Phadke97daee82009-02-24 16:39:21 -08001202 netxen_teardown_intr(adapter);
dhananjay@netxen.com30522462007-08-28 17:23:26 +05301203
Dhananjay Phadke97daee82009-02-24 16:39:21 -08001204 netxen_cleanup_pci_map(adapter);
Mithlesh Thukral595e3fb2007-04-20 07:53:52 -07001205
Dhananjay Phadkef7185c72009-04-28 15:29:11 +00001206 netxen_release_firmware(adapter);
1207
Mithlesh Thukral595e3fb2007-04-20 07:53:52 -07001208 pci_release_regions(pdev);
dhananjay@netxen.com30522462007-08-28 17:23:26 +05301209 pci_disable_device(pdev);
Mithlesh Thukral595e3fb2007-04-20 07:53:52 -07001210 pci_set_drvdata(pdev, NULL);
1211
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001212 free_netdev(netdev);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001213}
1214
Dhananjay Phadke01542cd2009-06-22 20:26:20 +00001215#ifdef CONFIG_PM
Dhananjay Phadke0b72e652009-03-13 14:52:02 +00001216static int
1217netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1218{
1219
1220 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1221 struct net_device *netdev = adapter->netdev;
1222
1223 netif_device_detach(netdev);
1224
1225 if (netif_running(netdev))
1226 netxen_nic_down(adapter, netdev);
1227
Amit Kumar Salechae424fa92009-08-13 07:03:00 +00001228 cancel_work_sync(&adapter->watchdog_task);
1229 cancel_work_sync(&adapter->tx_timeout_task);
1230
Dhananjay Phadke0b72e652009-03-13 14:52:02 +00001231 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1232 netxen_nic_detach(adapter);
1233
1234 pci_save_state(pdev);
1235
1236 if (netxen_nic_wol_supported(adapter)) {
1237 pci_enable_wake(pdev, PCI_D3cold, 1);
1238 pci_enable_wake(pdev, PCI_D3hot, 1);
1239 }
1240
1241 pci_disable_device(pdev);
1242 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1243
1244 return 0;
1245}
1246
1247static int
1248netxen_nic_resume(struct pci_dev *pdev)
1249{
1250 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1251 struct net_device *netdev = adapter->netdev;
1252 int err;
1253
1254 pci_set_power_state(pdev, PCI_D0);
1255 pci_restore_state(pdev);
1256
1257 err = pci_enable_device(pdev);
1258 if (err)
1259 return err;
1260
1261 adapter->curr_window = 255;
1262
Dhananjay Phadkef7185c72009-04-28 15:29:11 +00001263 err = netxen_start_firmware(adapter, 0);
Dhananjay Phadke0b72e652009-03-13 14:52:02 +00001264 if (err) {
1265 dev_err(&pdev->dev, "failed to start firmware\n");
1266 return err;
1267 }
1268
1269 if (netif_running(netdev)) {
1270 err = netxen_nic_attach(adapter);
1271 if (err)
1272 return err;
1273
1274 err = netxen_nic_up(adapter, netdev);
1275 if (err)
1276 return err;
1277
1278 netif_device_attach(netdev);
1279 }
1280
1281 return 0;
1282}
Dhananjay Phadke01542cd2009-06-22 20:26:20 +00001283#endif
Dhananjay Phadke0b72e652009-03-13 14:52:02 +00001284
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001285static int netxen_nic_open(struct net_device *netdev)
1286{
Wang Chen4cf16532008-11-12 23:38:14 -08001287 struct netxen_adapter *adapter = netdev_priv(netdev);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001288 int err = 0;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001289
Dhananjay Phadkedcd56fd2008-06-15 22:59:45 -07001290 if (adapter->driver_mismatch)
1291 return -EIO;
1292
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001293 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) {
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +00001294 err = netxen_nic_attach(adapter);
1295 if (err)
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001296 return err;
Amit S. Kaleed25ffa2006-12-04 09:23:25 -08001297 }
Dhananjay Phadke29566402008-07-21 19:44:04 -07001298
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +00001299 err = netxen_nic_up(adapter, netdev);
1300 if (err)
1301 goto err_out;
Dhananjay Phadke05aaa022008-03-17 19:59:49 -07001302
Dhananjay Phadkedcd56fd2008-06-15 22:59:45 -07001303 netif_start_queue(netdev);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001304
1305 return 0;
Dhananjay Phadke29566402008-07-21 19:44:04 -07001306
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +00001307err_out:
1308 netxen_nic_detach(adapter);
Dhananjay Phadke29566402008-07-21 19:44:04 -07001309 return err;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001310}
1311
1312/*
1313 * netxen_nic_close - Disables a network interface entry point
1314 */
1315static int netxen_nic_close(struct net_device *netdev)
1316{
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001317 struct netxen_adapter *adapter = netdev_priv(netdev);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001318
Dhananjay Phadke9f5bc7f2009-03-09 08:50:54 +00001319 netxen_nic_down(adapter, netdev);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001320 return 0;
1321}
1322
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001323static bool netxen_tso_check(struct net_device *netdev,
Dhananjay Phadkecd1f8162008-07-21 19:44:09 -07001324 struct cmd_desc_type0 *desc, struct sk_buff *skb)
1325{
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001326 bool tso = false;
1327 u8 opcode = TX_ETHER_PKT;
Dhananjay Phadkecdff1032009-01-26 12:34:57 -08001328 __be16 protocol = skb->protocol;
1329 u16 flags = 0;
1330
Harvey Harrison09640e62009-02-01 00:45:17 -08001331 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
Dhananjay Phadkecdff1032009-01-26 12:34:57 -08001332 struct vlan_ethhdr *vh = (struct vlan_ethhdr *)skb->data;
1333 protocol = vh->h_vlan_encapsulated_proto;
1334 flags = FLAGS_VLAN_TAGGED;
1335 }
Dhananjay Phadkecd1f8162008-07-21 19:44:09 -07001336
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001337 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1338 skb_shinfo(skb)->gso_size > 0) {
1339
1340 desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1341 desc->total_hdr_length =
1342 skb_transport_offset(skb) + tcp_hdrlen(skb);
1343
Harvey Harrison09640e62009-02-01 00:45:17 -08001344 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001345 TX_TCP_LSO6 : TX_TCP_LSO;
1346 tso = true;
Dhananjay Phadkecd1f8162008-07-21 19:44:09 -07001347
1348 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001349 u8 l4proto;
1350
Harvey Harrison09640e62009-02-01 00:45:17 -08001351 if (protocol == cpu_to_be16(ETH_P_IP)) {
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001352 l4proto = ip_hdr(skb)->protocol;
1353
1354 if (l4proto == IPPROTO_TCP)
1355 opcode = TX_TCP_PKT;
1356 else if(l4proto == IPPROTO_UDP)
1357 opcode = TX_UDP_PKT;
Harvey Harrison09640e62009-02-01 00:45:17 -08001358 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001359 l4proto = ipv6_hdr(skb)->nexthdr;
1360
1361 if (l4proto == IPPROTO_TCP)
1362 opcode = TX_TCPV6_PKT;
1363 else if(l4proto == IPPROTO_UDP)
1364 opcode = TX_UDPV6_PKT;
1365 }
Dhananjay Phadkecd1f8162008-07-21 19:44:09 -07001366 }
1367 desc->tcp_hdr_offset = skb_transport_offset(skb);
1368 desc->ip_hdr_offset = skb_network_offset(skb);
Dhananjay Phadkecdff1032009-01-26 12:34:57 -08001369 netxen_set_tx_flags_opcode(desc, flags, opcode);
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001370 return tso;
Dhananjay Phadkecd1f8162008-07-21 19:44:09 -07001371}
1372
Dhananjay Phadke6f703402009-01-14 20:50:00 -08001373static void
1374netxen_clean_tx_dma_mapping(struct pci_dev *pdev,
1375 struct netxen_cmd_buffer *pbuf, int last)
1376{
1377 int k;
1378 struct netxen_skb_frag *buffrag;
1379
1380 buffrag = &pbuf->frag_array[0];
1381 pci_unmap_single(pdev, buffrag->dma,
1382 buffrag->length, PCI_DMA_TODEVICE);
1383
1384 for (k = 1; k < last; k++) {
1385 buffrag = &pbuf->frag_array[k];
1386 pci_unmap_page(pdev, buffrag->dma,
1387 buffrag->length, PCI_DMA_TODEVICE);
1388 }
1389}
1390
Dhananjay Phadked32cc3d2009-03-09 08:50:53 +00001391static inline void
1392netxen_clear_cmddesc(u64 *desc)
1393{
1394 int i;
1395 for (i = 0; i < 8; i++)
1396 desc[i] = 0ULL;
1397}
1398
1399static int
1400netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001401{
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001402 struct netxen_adapter *adapter = netdev_priv(netdev);
Dhananjay Phadke4ea528a2009-04-28 15:29:10 +00001403 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001404 unsigned int first_seg_len = skb->len - skb->data_len;
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001405 struct netxen_cmd_buffer *pbuf;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001406 struct netxen_skb_frag *buffrag;
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001407 struct cmd_desc_type0 *hwdesc;
Dhananjay Phadke6f703402009-01-14 20:50:00 -08001408 struct pci_dev *pdev = adapter->pdev;
1409 dma_addr_t temp_dma;
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001410 int i, k;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001411
Dhananjay Phadkecb2107b2009-06-17 17:27:25 +00001412 u32 producer;
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001413 int frag_count, no_of_desc;
Dhananjay Phadked877f1e2009-04-07 22:50:40 +00001414 u32 num_txd = tx_ring->num_desc;
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001415 bool is_tso = false;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001416
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001417 frag_count = skb_shinfo(skb)->nr_frags + 1;
1418
Dhananjay Phadked877f1e2009-04-07 22:50:40 +00001419 /* 4 fragments per cmd des */
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001420 no_of_desc = (frag_count + 3) >> 2;
dhananjay@netxen.com53a01e02007-12-26 10:23:58 -08001421
Dhananjay Phadkecb2107b2009-06-17 17:27:25 +00001422 if (unlikely(no_of_desc + 2) > netxen_tx_avail(tx_ring)) {
Dhananjay Phadkeba53e6b2008-03-17 19:59:50 -07001423 netif_stop_queue(netdev);
Dhananjay Phadkeba53e6b2008-03-17 19:59:50 -07001424 return NETDEV_TX_BUSY;
dhananjay@netxen.com53a01e02007-12-26 10:23:58 -08001425 }
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001426
Dhananjay Phadkecb2107b2009-06-17 17:27:25 +00001427 producer = tx_ring->producer;
1428
Dhananjay Phadked877f1e2009-04-07 22:50:40 +00001429 hwdesc = &tx_ring->desc_head[producer];
Dhananjay Phadked32cc3d2009-03-09 08:50:53 +00001430 netxen_clear_cmddesc((u64 *)hwdesc);
Dhananjay Phadked877f1e2009-04-07 22:50:40 +00001431 pbuf = &tx_ring->cmd_buf_arr[producer];
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001432
1433 is_tso = netxen_tso_check(netdev, hwdesc, skb);
1434
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001435 pbuf->skb = skb;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001436 pbuf->frag_count = frag_count;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001437 buffrag = &pbuf->frag_array[0];
Dhananjay Phadke6f703402009-01-14 20:50:00 -08001438 temp_dma = pci_map_single(pdev, skb->data, first_seg_len,
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001439 PCI_DMA_TODEVICE);
Dhananjay Phadke6f703402009-01-14 20:50:00 -08001440 if (pci_dma_mapping_error(pdev, temp_dma))
1441 goto drop_packet;
1442
1443 buffrag->dma = temp_dma;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001444 buffrag->length = first_seg_len;
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001445 netxen_set_tx_frags_len(hwdesc, frag_count, skb->len);
1446 netxen_set_tx_port(hwdesc, adapter->portnum);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001447
Dhananjay Phadked32cc3d2009-03-09 08:50:53 +00001448 hwdesc->buffer_length[0] = cpu_to_le16(first_seg_len);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001449 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1450
1451 for (i = 1, k = 1; i < frag_count; i++, k++) {
1452 struct skb_frag_struct *frag;
1453 int len, temp_len;
1454 unsigned long offset;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001455
1456 /* move to next desc. if there is a need */
1457 if ((i & 0x3) == 0) {
1458 k = 0;
Dhananjay Phadkeba53e6b2008-03-17 19:59:50 -07001459 producer = get_next_index(producer, num_txd);
Dhananjay Phadked877f1e2009-04-07 22:50:40 +00001460 hwdesc = &tx_ring->desc_head[producer];
Dhananjay Phadked32cc3d2009-03-09 08:50:53 +00001461 netxen_clear_cmddesc((u64 *)hwdesc);
Dhananjay Phadked877f1e2009-04-07 22:50:40 +00001462 pbuf = &tx_ring->cmd_buf_arr[producer];
dhananjay@netxen.com53a01e02007-12-26 10:23:58 -08001463 pbuf->skb = NULL;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001464 }
1465 frag = &skb_shinfo(skb)->frags[i - 1];
1466 len = frag->size;
1467 offset = frag->page_offset;
1468
1469 temp_len = len;
Dhananjay Phadke6f703402009-01-14 20:50:00 -08001470 temp_dma = pci_map_page(pdev, frag->page, offset,
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001471 len, PCI_DMA_TODEVICE);
Dhananjay Phadke6f703402009-01-14 20:50:00 -08001472 if (pci_dma_mapping_error(pdev, temp_dma)) {
1473 netxen_clean_tx_dma_mapping(pdev, pbuf, i);
1474 goto drop_packet;
1475 }
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001476
1477 buffrag++;
1478 buffrag->dma = temp_dma;
1479 buffrag->length = temp_len;
1480
Dhananjay Phadked32cc3d2009-03-09 08:50:53 +00001481 hwdesc->buffer_length[k] = cpu_to_le16(temp_len);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001482 switch (k) {
1483 case 0:
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001484 hwdesc->addr_buffer1 = cpu_to_le64(temp_dma);
1485 break;
1486 case 1:
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001487 hwdesc->addr_buffer2 = cpu_to_le64(temp_dma);
1488 break;
1489 case 2:
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001490 hwdesc->addr_buffer3 = cpu_to_le64(temp_dma);
1491 break;
1492 case 3:
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001493 hwdesc->addr_buffer4 = cpu_to_le64(temp_dma);
1494 break;
1495 }
1496 frag++;
1497 }
Dhananjay Phadkeba53e6b2008-03-17 19:59:50 -07001498 producer = get_next_index(producer, num_txd);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001499
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001500 /* For LSO, we need to copy the MAC/IP/TCP headers into
1501 * the descriptor ring
1502 */
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001503 if (is_tso) {
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001504 int hdr_len, first_hdr_len, more_hdr;
Dhananjay Phadke391587c2009-01-14 20:48:11 -08001505 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
Amit S. Kaleed25ffa2006-12-04 09:23:25 -08001506 if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) {
1507 first_hdr_len = sizeof(struct cmd_desc_type0) - 2;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001508 more_hdr = 1;
1509 } else {
1510 first_hdr_len = hdr_len;
1511 more_hdr = 0;
1512 }
1513 /* copy the MAC/IP/TCP headers to the cmd descriptor list */
Dhananjay Phadked877f1e2009-04-07 22:50:40 +00001514 hwdesc = &tx_ring->desc_head[producer];
1515 pbuf = &tx_ring->cmd_buf_arr[producer];
dhananjay@netxen.com53a01e02007-12-26 10:23:58 -08001516 pbuf->skb = NULL;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001517
1518 /* copy the first 64 bytes */
Amit S. Kaleed25ffa2006-12-04 09:23:25 -08001519 memcpy(((void *)hwdesc) + 2,
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001520 (void *)(skb->data), first_hdr_len);
Dhananjay Phadkeba53e6b2008-03-17 19:59:50 -07001521 producer = get_next_index(producer, num_txd);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001522
1523 if (more_hdr) {
Dhananjay Phadked877f1e2009-04-07 22:50:40 +00001524 hwdesc = &tx_ring->desc_head[producer];
1525 pbuf = &tx_ring->cmd_buf_arr[producer];
dhananjay@netxen.com53a01e02007-12-26 10:23:58 -08001526 pbuf->skb = NULL;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001527 /* copy the next 64 bytes - should be enough except
1528 * for pathological case
1529 */
Arnaldo Carvalho de Melod626f622007-03-27 18:55:52 -03001530 skb_copy_from_linear_data_offset(skb, first_hdr_len,
1531 hwdesc,
1532 (hdr_len -
1533 first_hdr_len));
Dhananjay Phadkeba53e6b2008-03-17 19:59:50 -07001534 producer = get_next_index(producer, num_txd);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001535 }
1536 }
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001537
Dhananjay Phadked877f1e2009-04-07 22:50:40 +00001538 tx_ring->producer = producer;
Dhananjay Phadke5dc16262007-12-31 10:08:57 -08001539 adapter->stats.txbytes += skb->len;
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001540
Dhananjay Phadkecb2107b2009-06-17 17:27:25 +00001541 netxen_nic_update_cmd_producer(adapter, tx_ring);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001542
Dhananjay Phadkeba53e6b2008-03-17 19:59:50 -07001543 adapter->stats.xmitcalled++;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001544
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001545 return NETDEV_TX_OK;
Dhananjay Phadke6f703402009-01-14 20:50:00 -08001546
1547drop_packet:
1548 adapter->stats.txdropped++;
1549 dev_kfree_skb_any(skb);
1550 return NETDEV_TX_OK;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001551}
1552
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001553static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1554{
1555 struct net_device *netdev = adapter->netdev;
1556 uint32_t temp, temp_state, temp_val;
1557 int rv = 0;
1558
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +00001559 temp = NXRD32(adapter, CRB_TEMP_STATE);
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001560
1561 temp_state = nx_get_temp_state(temp);
1562 temp_val = nx_get_temp_val(temp);
1563
1564 if (temp_state == NX_TEMP_PANIC) {
1565 printk(KERN_ALERT
1566 "%s: Device temperature %d degrees C exceeds"
1567 " maximum allowed. Hardware has been shut down.\n",
Dhananjay Phadkee4135c22009-07-17 15:27:08 +00001568 netdev->name, temp_val);
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001569 rv = 1;
1570 } else if (temp_state == NX_TEMP_WARN) {
1571 if (adapter->temp == NX_TEMP_NORMAL) {
1572 printk(KERN_ALERT
1573 "%s: Device temperature %d degrees C "
1574 "exceeds operating range."
1575 " Immediate action needed.\n",
Dhananjay Phadkee4135c22009-07-17 15:27:08 +00001576 netdev->name, temp_val);
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001577 }
1578 } else {
1579 if (adapter->temp == NX_TEMP_WARN) {
1580 printk(KERN_INFO
1581 "%s: Device temperature is now %d degrees C"
Dhananjay Phadkee4135c22009-07-17 15:27:08 +00001582 " in normal range.\n", netdev->name,
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001583 temp_val);
1584 }
1585 }
1586 adapter->temp = temp_state;
1587 return rv;
1588}
1589
Dhananjay Phadke3bf26ce2009-04-07 22:50:42 +00001590void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001591{
1592 struct net_device *netdev = adapter->netdev;
Dhananjay Phadke3bf26ce2009-04-07 22:50:42 +00001593
1594 if (adapter->ahw.linkup && !linkup) {
1595 printk(KERN_INFO "%s: %s NIC Link is down\n",
1596 netxen_nic_driver_name, netdev->name);
1597 adapter->ahw.linkup = 0;
1598 if (netif_running(netdev)) {
1599 netif_carrier_off(netdev);
1600 netif_stop_queue(netdev);
1601 }
Amit Kumar Salechae424fa92009-08-13 07:03:00 +00001602 adapter->link_changed = !adapter->has_link_events;
Dhananjay Phadke3bf26ce2009-04-07 22:50:42 +00001603 } else if (!adapter->ahw.linkup && linkup) {
1604 printk(KERN_INFO "%s: %s NIC Link is up\n",
1605 netxen_nic_driver_name, netdev->name);
1606 adapter->ahw.linkup = 1;
1607 if (netif_running(netdev)) {
1608 netif_carrier_on(netdev);
1609 netif_wake_queue(netdev);
1610 }
Amit Kumar Salechae424fa92009-08-13 07:03:00 +00001611 adapter->link_changed = !adapter->has_link_events;
Dhananjay Phadke3bf26ce2009-04-07 22:50:42 +00001612 }
1613}
1614
1615static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1616{
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001617 u32 val, port, linkup;
1618
1619 port = adapter->physical_port;
1620
Dhananjay Phadke24a7a452008-08-01 03:14:55 -07001621 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +00001622 val = NXRD32(adapter, CRB_XG_STATE_P3);
Dhananjay Phadke24a7a452008-08-01 03:14:55 -07001623 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1624 linkup = (val == XG_LINK_UP_P3);
Dhananjay Phadkec9fc8912008-07-21 19:44:07 -07001625 } else {
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +00001626 val = NXRD32(adapter, CRB_XG_STATE);
Dhananjay Phadke1e2d0052009-03-09 08:50:56 +00001627 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
Dhananjay Phadke24a7a452008-08-01 03:14:55 -07001628 linkup = (val >> port) & 1;
1629 else {
Dhananjay Phadkec9fc8912008-07-21 19:44:07 -07001630 val = (val >> port*8) & 0xff;
1631 linkup = (val == XG_LINK_UP);
Dhananjay Phadkec9fc8912008-07-21 19:44:07 -07001632 }
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001633 }
1634
Dhananjay Phadke3bf26ce2009-04-07 22:50:42 +00001635 netxen_advert_link_change(adapter, linkup);
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001636}
1637
Amit Kumar Salechae424fa92009-08-13 07:03:00 +00001638static void netxen_nic_thermal_shutdown(struct netxen_adapter *adapter)
1639{
1640 struct net_device *netdev = adapter->netdev;
1641
1642 netif_device_detach(netdev);
1643 netxen_nic_down(adapter, netdev);
1644 netxen_nic_detach(adapter);
1645}
1646
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001647static void netxen_watchdog(unsigned long v)
1648{
1649 struct netxen_adapter *adapter = (struct netxen_adapter *)v;
Amit S. Kaleed25ffa2006-12-04 09:23:25 -08001650
Amit Kumar Salechae424fa92009-08-13 07:03:00 +00001651 if (netxen_nic_check_temp(adapter))
1652 goto do_sched;
1653
1654 if (!adapter->has_link_events) {
1655 netxen_nic_handle_phy_intr(adapter);
1656
1657 if (adapter->link_changed)
1658 goto do_sched;
1659 }
1660
1661 if (netif_running(adapter->netdev))
1662 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1663
1664 return;
1665
1666do_sched:
1667 schedule_work(&adapter->watchdog_task);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001668}
1669
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001670void netxen_watchdog_task(struct work_struct *work)
1671{
1672 struct netxen_adapter *adapter =
1673 container_of(work, struct netxen_adapter, watchdog_task);
1674
Amit Kumar Salechae424fa92009-08-13 07:03:00 +00001675 if (adapter->temp == NX_TEMP_PANIC) {
1676 netxen_nic_thermal_shutdown(adapter);
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001677 return;
Amit Kumar Salechae424fa92009-08-13 07:03:00 +00001678 }
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001679
Amit Kumar Salechae424fa92009-08-13 07:03:00 +00001680 if (adapter->link_changed)
1681 netxen_nic_set_link_parameters(adapter);
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001682
Dhananjay Phadke922c4f22008-08-08 00:08:41 -07001683 if (netif_running(adapter->netdev))
1684 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001685}
1686
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001687static void netxen_tx_timeout(struct net_device *netdev)
1688{
Amit Kumar Salechae424fa92009-08-13 07:03:00 +00001689 struct netxen_adapter *adapter = netdev_priv(netdev);
1690 schedule_work(&adapter->tx_timeout_task);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001691}
1692
David Howells6d5aefb2006-12-05 19:36:26 +00001693static void netxen_tx_timeout_task(struct work_struct *work)
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001694{
Jeff Garzik47906542007-11-23 21:23:36 -05001695 struct netxen_adapter *adapter =
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001696 container_of(work, struct netxen_adapter, tx_timeout_task);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001697
Dhananjay Phadkeb2af9cb2009-07-17 15:27:07 +00001698 if (!netif_running(adapter->netdev))
1699 return;
1700
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001701 printk(KERN_ERR "%s %s: transmit timeout, resetting.\n",
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001702 netxen_nic_driver_name, adapter->netdev->name);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001703
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001704 netxen_napi_disable(adapter);
Dhananjay Phadkeba53e6b2008-03-17 19:59:50 -07001705
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001706 adapter->netdev->trans_start = jiffies;
Dhananjay Phadkeba53e6b2008-03-17 19:59:50 -07001707
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001708 netxen_napi_enable(adapter);
Mithlesh Thukral6c80b182007-04-20 07:55:26 -07001709 netif_wake_queue(adapter->netdev);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001710}
1711
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001712struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1713{
1714 struct netxen_adapter *adapter = netdev_priv(netdev);
1715 struct net_device_stats *stats = &adapter->net_stats;
1716
1717 memset(stats, 0, sizeof(*stats));
1718
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001719 stats->rx_packets = adapter->stats.no_rcv;
Dhananjay Phadkee98e3352009-04-07 22:50:38 +00001720 stats->tx_packets = adapter->stats.xmitfinished;
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001721 stats->rx_bytes = adapter->stats.rxbytes;
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001722 stats->tx_bytes = adapter->stats.txbytes;
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001723 stats->rx_dropped = adapter->stats.rxdropped;
Dhananjay Phadkea97342f2008-07-21 19:44:05 -07001724 stats->tx_dropped = adapter->stats.txdropped;
1725
1726 return stats;
1727}
1728
Dhananjay Phadkee4c93c82008-07-21 19:44:02 -07001729static irqreturn_t netxen_intr(int irq, void *data)
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001730{
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001731 struct nx_host_sds_ring *sds_ring = data;
1732 struct netxen_adapter *adapter = sds_ring->adapter;
Dhananjay Phadked71e1be2008-08-01 03:14:57 -07001733 u32 status = 0;
1734
1735 status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1736
1737 if (!(status & adapter->legacy_intr.int_vec_bit))
Dhananjay Phadke05aaa022008-03-17 19:59:49 -07001738 return IRQ_NONE;
dhananjay@netxen.come01872af2007-07-25 20:13:12 +05301739
Dhananjay Phadked71e1be2008-08-01 03:14:57 -07001740 if (adapter->ahw.revision_id >= NX_P3_B1) {
1741 /* check interrupt state machine, to be sure */
1742 status = adapter->pci_read_immediate(adapter,
1743 ISR_INT_STATE_REG);
1744 if (!ISR_LEGACY_INT_TRIGGERED(status))
1745 return IRQ_NONE;
1746
Dhananjay Phadke092bc572008-08-08 00:08:43 -07001747 } else {
1748 unsigned long our_int = 0;
Dhananjay Phadked71e1be2008-08-01 03:14:57 -07001749
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +00001750 our_int = NXRD32(adapter, CRB_INT_VECTOR);
Dhananjay Phadke092bc572008-08-08 00:08:43 -07001751
Dhananjay Phadked71e1be2008-08-01 03:14:57 -07001752 /* not our interrupt */
Dhananjay Phadke092bc572008-08-08 00:08:43 -07001753 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
Dhananjay Phadked71e1be2008-08-01 03:14:57 -07001754 return IRQ_NONE;
1755
Dhananjay Phadke092bc572008-08-08 00:08:43 -07001756 /* claim interrupt */
Dhananjay Phadkef98a9f62009-04-07 22:50:45 +00001757 NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff));
dhananjay@netxen.come01872af2007-07-25 20:13:12 +05301758 }
1759
Dhananjay Phadke092bc572008-08-08 00:08:43 -07001760 /* clear interrupt */
1761 if (adapter->fw_major < 4)
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001762 netxen_nic_disable_int(sds_ring);
Dhananjay Phadke092bc572008-08-08 00:08:43 -07001763
1764 adapter->pci_write_immediate(adapter,
1765 adapter->legacy_intr.tgt_status_reg,
1766 0xffffffff);
1767 /* read twice to ensure write is flushed */
1768 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1769 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1770
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001771 napi_schedule(&sds_ring->napi);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001772
1773 return IRQ_HANDLED;
1774}
1775
Dhananjay Phadkee4c93c82008-07-21 19:44:02 -07001776static irqreturn_t netxen_msi_intr(int irq, void *data)
Dhananjay Phadke05aaa022008-03-17 19:59:49 -07001777{
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001778 struct nx_host_sds_ring *sds_ring = data;
1779 struct netxen_adapter *adapter = sds_ring->adapter;
Dhananjay Phadke05aaa022008-03-17 19:59:49 -07001780
Dhananjay Phadke092bc572008-08-08 00:08:43 -07001781 /* clear interrupt */
1782 adapter->pci_write_immediate(adapter,
Dhananjay Phadke7a2469c2009-05-08 22:02:27 +00001783 adapter->msi_tgt_status, 0xffffffff);
Dhananjay Phadke092bc572008-08-08 00:08:43 -07001784
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001785 napi_schedule(&sds_ring->napi);
Dhananjay Phadke05aaa022008-03-17 19:59:49 -07001786 return IRQ_HANDLED;
1787}
1788
Dhananjay Phadkeb3df68f2009-02-08 19:20:19 -08001789static irqreturn_t netxen_msix_intr(int irq, void *data)
1790{
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001791 struct nx_host_sds_ring *sds_ring = data;
Dhananjay Phadkeb3df68f2009-02-08 19:20:19 -08001792
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001793 napi_schedule(&sds_ring->napi);
Dhananjay Phadkeb3df68f2009-02-08 19:20:19 -08001794 return IRQ_HANDLED;
1795}
1796
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001797static int netxen_nic_poll(struct napi_struct *napi, int budget)
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001798{
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001799 struct nx_host_sds_ring *sds_ring =
1800 container_of(napi, struct nx_host_sds_ring, napi);
1801
1802 struct netxen_adapter *adapter = sds_ring->adapter;
1803
Dhananjay Phadke05aaa022008-03-17 19:59:49 -07001804 int tx_complete;
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001805 int work_done;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001806
Dhananjay Phadke05aaa022008-03-17 19:59:49 -07001807 tx_complete = netxen_process_cmd_ring(adapter);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001808
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001809 work_done = netxen_process_rcv_ring(sds_ring, budget);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001810
Dhananjay Phadke05aaa022008-03-17 19:59:49 -07001811 if ((work_done < budget) && tx_complete) {
Dhananjay Phadked8b100c2009-03-13 14:52:05 +00001812 napi_complete(&sds_ring->napi);
Dhananjay Phadkeb2af9cb2009-07-17 15:27:07 +00001813 if (netif_running(adapter->netdev))
1814 netxen_nic_enable_int(sds_ring);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001815 }
1816
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001817 return work_done;
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001818}
1819
1820#ifdef CONFIG_NET_POLL_CONTROLLER
1821static void netxen_nic_poll_controller(struct net_device *netdev)
1822{
Mithlesh Thukral3176ff32007-04-20 07:52:37 -07001823 struct netxen_adapter *adapter = netdev_priv(netdev);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001824 disable_irq(adapter->irq);
Jeff Garzik1494a812006-11-07 05:12:16 -05001825 netxen_intr(adapter->irq, adapter);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001826 enable_irq(adapter->irq);
1827}
1828#endif
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001829
1830static struct pci_driver netxen_driver = {
1831 .name = netxen_nic_driver_name,
1832 .id_table = netxen_pci_tbl,
1833 .probe = netxen_nic_probe,
Dhananjay Phadke0b72e652009-03-13 14:52:02 +00001834 .remove = __devexit_p(netxen_nic_remove),
Dhananjay Phadke01542cd2009-06-22 20:26:20 +00001835#ifdef CONFIG_PM
Dhananjay Phadke0b72e652009-03-13 14:52:02 +00001836 .suspend = netxen_nic_suspend,
1837 .resume = netxen_nic_resume
Dhananjay Phadke01542cd2009-06-22 20:26:20 +00001838#endif
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001839};
1840
1841/* Driver Registration on NetXen card */
1842
1843static int __init netxen_init_module(void)
1844{
Dhananjay Phadkeff4fbd42009-03-13 14:52:06 +00001845 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
1846
Amit S. Kale184231b2007-01-22 06:52:53 -08001847 return pci_register_driver(&netxen_driver);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001848}
1849
1850module_init(netxen_init_module);
1851
1852static void __exit netxen_exit_module(void)
1853{
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001854 pci_unregister_driver(&netxen_driver);
Amit S. Kale3d396eb2006-10-21 15:33:03 -04001855}
1856
1857module_exit(netxen_exit_module);