2 * Copyright (C) 2003 - 2009 NetXen, Inc.
5 * 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.
10 * 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.
15 * 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,
20 * The full GNU General Public License is included in this distribution
21 * in the file called LICENSE.
23 * Contact Information:
27 * Cupertino, CA 95014-0701
31 #include <linux/vmalloc.h>
32 #include <linux/interrupt.h>
33 #include "netxen_nic_hw.h"
35 #include "netxen_nic.h"
36 #include "netxen_nic_phan_reg.h"
38 #include <linux/dma-mapping.h>
39 #include <linux/if_vlan.h>
41 #include <linux/ipv6.h>
43 MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
44 MODULE_LICENSE("GPL");
45 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID
);
47 char netxen_nic_driver_name
[] = "netxen_nic";
48 static char netxen_nic_driver_string
[] = "NetXen Network Driver version "
49 NETXEN_NIC_LINUX_VERSIONID
;
51 static int port_mode
= NETXEN_PORT_MODE_AUTO_NEG
;
53 /* Default to restricted 1G auto-neg mode */
54 static int wol_port_mode
= 5;
56 static int use_msi
= 1;
58 static int use_msi_x
= 1;
60 /* Local functions to NetXen NIC driver */
61 static int __devinit
netxen_nic_probe(struct pci_dev
*pdev
,
62 const struct pci_device_id
*ent
);
63 static void __devexit
netxen_nic_remove(struct pci_dev
*pdev
);
64 static int netxen_nic_open(struct net_device
*netdev
);
65 static int netxen_nic_close(struct net_device
*netdev
);
66 static int netxen_nic_xmit_frame(struct sk_buff
*, struct net_device
*);
67 static void netxen_tx_timeout(struct net_device
*netdev
);
68 static void netxen_tx_timeout_task(struct work_struct
*work
);
69 static void netxen_watchdog(unsigned long);
70 static int netxen_nic_poll(struct napi_struct
*napi
, int budget
);
71 #ifdef CONFIG_NET_POLL_CONTROLLER
72 static void netxen_nic_poll_controller(struct net_device
*netdev
);
74 static irqreturn_t
netxen_intr(int irq
, void *data
);
75 static irqreturn_t
netxen_msi_intr(int irq
, void *data
);
76 static irqreturn_t
netxen_msix_intr(int irq
, void *data
);
78 /* PCI Device ID Table */
79 #define ENTRY(device) \
80 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
81 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
83 static struct pci_device_id netxen_pci_tbl
[] __devinitdata
= {
84 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
),
95 MODULE_DEVICE_TABLE(pci
, netxen_pci_tbl
);
97 static struct workqueue_struct
*netxen_workq
;
98 #define SCHEDULE_WORK(tp) queue_work(netxen_workq, tp)
99 #define FLUSH_SCHEDULED_WORK() flush_workqueue(netxen_workq)
101 static void netxen_watchdog(unsigned long);
103 static uint32_t crb_cmd_producer
[4] = {
104 CRB_CMD_PRODUCER_OFFSET
, CRB_CMD_PRODUCER_OFFSET_1
,
105 CRB_CMD_PRODUCER_OFFSET_2
, CRB_CMD_PRODUCER_OFFSET_3
109 netxen_nic_update_cmd_producer(struct netxen_adapter
*adapter
,
110 struct nx_host_tx_ring
*tx_ring
, u32 producer
)
112 adapter
->pci_write_normalize(adapter
,
113 tx_ring
->crb_cmd_producer
, producer
);
116 static 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
122 netxen_nic_update_cmd_consumer(struct netxen_adapter
*adapter
,
123 struct nx_host_tx_ring
*tx_ring
, u32 consumer
)
125 adapter
->pci_write_normalize(adapter
,
126 tx_ring
->crb_cmd_consumer
, consumer
);
129 static uint32_t msi_tgt_status
[8] = {
130 ISR_INT_TARGET_STATUS
, ISR_INT_TARGET_STATUS_F1
,
131 ISR_INT_TARGET_STATUS_F2
, ISR_INT_TARGET_STATUS_F3
,
132 ISR_INT_TARGET_STATUS_F4
, ISR_INT_TARGET_STATUS_F5
,
133 ISR_INT_TARGET_STATUS_F6
, ISR_INT_TARGET_STATUS_F7
136 static struct netxen_legacy_intr_set legacy_intr
[] = NX_LEGACY_INTR_CONFIG
;
138 static inline void netxen_nic_disable_int(struct nx_host_sds_ring
*sds_ring
)
140 struct netxen_adapter
*adapter
= sds_ring
->adapter
;
142 adapter
->pci_write_normalize(adapter
, sds_ring
->crb_intr_mask
, 0);
145 static inline void netxen_nic_enable_int(struct nx_host_sds_ring
*sds_ring
)
147 struct netxen_adapter
*adapter
= sds_ring
->adapter
;
149 adapter
->pci_write_normalize(adapter
, sds_ring
->crb_intr_mask
, 0x1);
151 if (!NETXEN_IS_MSI_FAMILY(adapter
))
152 adapter
->pci_write_immediate(adapter
,
153 adapter
->legacy_intr
.tgt_mask_reg
, 0xfbff);
157 netxen_napi_add(struct netxen_adapter
*adapter
, struct net_device
*netdev
)
160 struct nx_host_sds_ring
*sds_ring
;
161 struct netxen_recv_context
*recv_ctx
= &adapter
->recv_ctx
;
163 if (adapter
->flags
& NETXEN_NIC_MSIX_ENABLED
)
164 adapter
->max_sds_rings
= (num_online_cpus() >= 4) ? 4 : 2;
166 adapter
->max_sds_rings
= 1;
168 for (ring
= 0; ring
< adapter
->max_sds_rings
; ring
++) {
169 sds_ring
= &recv_ctx
->sds_rings
[ring
];
170 netif_napi_add(netdev
, &sds_ring
->napi
,
171 netxen_nic_poll
, NETXEN_NETDEV_WEIGHT
);
176 netxen_napi_enable(struct netxen_adapter
*adapter
)
179 struct nx_host_sds_ring
*sds_ring
;
180 struct netxen_recv_context
*recv_ctx
= &adapter
->recv_ctx
;
182 for (ring
= 0; ring
< adapter
->max_sds_rings
; ring
++) {
183 sds_ring
= &recv_ctx
->sds_rings
[ring
];
184 napi_enable(&sds_ring
->napi
);
185 netxen_nic_enable_int(sds_ring
);
190 netxen_napi_disable(struct netxen_adapter
*adapter
)
193 struct nx_host_sds_ring
*sds_ring
;
194 struct netxen_recv_context
*recv_ctx
= &adapter
->recv_ctx
;
196 for (ring
= 0; ring
< adapter
->max_sds_rings
; ring
++) {
197 sds_ring
= &recv_ctx
->sds_rings
[ring
];
198 netxen_nic_disable_int(sds_ring
);
199 napi_disable(&sds_ring
->napi
);
203 static int nx_set_dma_mask(struct netxen_adapter
*adapter
, uint8_t revision_id
)
205 struct pci_dev
*pdev
= adapter
->pdev
;
206 uint64_t mask
, cmask
;
208 adapter
->pci_using_dac
= 0;
210 mask
= DMA_BIT_MASK(32);
212 * Consistent DMA mask is set to 32 bit because it cannot be set to
213 * 35 bits. For P3 also leave it at 32 bits for now. Only the rings
214 * come off this pool.
216 cmask
= DMA_BIT_MASK(32);
219 if (revision_id
>= NX_P3_B0
)
220 mask
= DMA_BIT_MASK(39);
221 else if (revision_id
== NX_P2_C1
)
222 mask
= DMA_BIT_MASK(35);
224 if (pci_set_dma_mask(pdev
, mask
) == 0 &&
225 pci_set_consistent_dma_mask(pdev
, cmask
) == 0) {
226 adapter
->pci_using_dac
= 1;
233 /* Update addressable range if firmware supports it */
235 nx_update_dma_mask(struct netxen_adapter
*adapter
)
237 int change
, shift
, err
;
238 uint64_t mask
, old_mask
;
239 struct pci_dev
*pdev
= adapter
->pdev
;
243 shift
= netxen_nic_reg_read(adapter
, CRB_DMA_SHIFT
);
247 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
) && (shift
> 9))
249 else if ((adapter
->ahw
.revision_id
== NX_P2_C1
) && (shift
<= 4))
253 old_mask
= pdev
->dma_mask
;
254 mask
= (1ULL<<(32+shift
)) - 1;
256 err
= pci_set_dma_mask(pdev
, mask
);
258 return pci_set_dma_mask(pdev
, old_mask
);
264 static void netxen_check_options(struct netxen_adapter
*adapter
)
266 if (adapter
->ahw
.port_type
== NETXEN_NIC_XGBE
)
267 adapter
->num_rxd
= MAX_RCV_DESCRIPTORS_10G
;
268 else if (adapter
->ahw
.port_type
== NETXEN_NIC_GBE
)
269 adapter
->num_rxd
= MAX_RCV_DESCRIPTORS_1G
;
271 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
))
272 adapter
->msix_supported
= !!use_msi_x
;
274 adapter
->msix_supported
= 0;
276 adapter
->num_txd
= MAX_CMD_DESCRIPTORS_HOST
;
277 adapter
->num_jumbo_rxd
= MAX_JUMBO_RCV_DESCRIPTORS
;
278 adapter
->num_lro_rxd
= MAX_LRO_RCV_DESCRIPTORS
;
284 netxen_check_hw_init(struct netxen_adapter
*adapter
, int first_boot
)
288 if (first_boot
== 0x55555555) {
289 /* This is the first boot after power up */
290 adapter
->pci_write_normalize(adapter
,
291 NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC
);
293 if (!NX_IS_REVISION_P2(adapter
->ahw
.revision_id
))
296 /* PCI bus master workaround */
297 adapter
->hw_read_wx(adapter
,
298 NETXEN_PCIE_REG(0x4), &first_boot
, 4);
299 if (!(first_boot
& 0x4)) {
301 adapter
->hw_write_wx(adapter
,
302 NETXEN_PCIE_REG(0x4), &first_boot
, 4);
303 adapter
->hw_read_wx(adapter
,
304 NETXEN_PCIE_REG(0x4), &first_boot
, 4);
307 /* This is the first boot after power up */
308 adapter
->hw_read_wx(adapter
,
309 NETXEN_ROMUSB_GLB_SW_RESET
, &first_boot
, 4);
310 if (first_boot
!= 0x80000f) {
311 /* clear the register for future unloads/loads */
312 adapter
->pci_write_normalize(adapter
,
313 NETXEN_CAM_RAM(0x1fc), 0);
317 /* Start P2 boot loader */
318 val
= adapter
->pci_read_normalize(adapter
,
319 NETXEN_ROMUSB_GLB_PEGTUNE_DONE
);
320 adapter
->pci_write_normalize(adapter
,
321 NETXEN_ROMUSB_GLB_PEGTUNE_DONE
, val
| 0x1);
325 val
= adapter
->pci_read_normalize(adapter
,
326 NETXEN_CAM_RAM(0x1fc));
328 if (++timeout
> 5000)
331 } while (val
== NETXEN_BDINFO_MAGIC
);
336 static void netxen_set_port_mode(struct netxen_adapter
*adapter
)
340 val
= adapter
->ahw
.board_type
;
341 if ((val
== NETXEN_BRDTYPE_P3_HMEZ
) ||
342 (val
== NETXEN_BRDTYPE_P3_XG_LOM
)) {
343 if (port_mode
== NETXEN_PORT_MODE_802_3_AP
) {
344 data
= NETXEN_PORT_MODE_802_3_AP
;
345 adapter
->hw_write_wx(adapter
,
346 NETXEN_PORT_MODE_ADDR
, &data
, 4);
347 } else if (port_mode
== NETXEN_PORT_MODE_XG
) {
348 data
= NETXEN_PORT_MODE_XG
;
349 adapter
->hw_write_wx(adapter
,
350 NETXEN_PORT_MODE_ADDR
, &data
, 4);
351 } else if (port_mode
== NETXEN_PORT_MODE_AUTO_NEG_1G
) {
352 data
= NETXEN_PORT_MODE_AUTO_NEG_1G
;
353 adapter
->hw_write_wx(adapter
,
354 NETXEN_PORT_MODE_ADDR
, &data
, 4);
355 } else if (port_mode
== NETXEN_PORT_MODE_AUTO_NEG_XG
) {
356 data
= NETXEN_PORT_MODE_AUTO_NEG_XG
;
357 adapter
->hw_write_wx(adapter
,
358 NETXEN_PORT_MODE_ADDR
, &data
, 4);
360 data
= NETXEN_PORT_MODE_AUTO_NEG
;
361 adapter
->hw_write_wx(adapter
,
362 NETXEN_PORT_MODE_ADDR
, &data
, 4);
365 if ((wol_port_mode
!= NETXEN_PORT_MODE_802_3_AP
) &&
366 (wol_port_mode
!= NETXEN_PORT_MODE_XG
) &&
367 (wol_port_mode
!= NETXEN_PORT_MODE_AUTO_NEG_1G
) &&
368 (wol_port_mode
!= NETXEN_PORT_MODE_AUTO_NEG_XG
)) {
369 wol_port_mode
= NETXEN_PORT_MODE_AUTO_NEG
;
371 adapter
->hw_write_wx(adapter
, NETXEN_WOL_PORT_MODE
,
376 static void netxen_set_msix_bit(struct pci_dev
*pdev
, int enable
)
381 pos
= pci_find_capability(pdev
, PCI_CAP_ID_MSIX
);
383 pci_read_config_dword(pdev
, pos
, &control
);
385 control
|= PCI_MSIX_FLAGS_ENABLE
;
388 pci_write_config_dword(pdev
, pos
, control
);
392 static void netxen_init_msix_entries(struct netxen_adapter
*adapter
)
396 for (i
= 0; i
< MSIX_ENTRIES_PER_ADAPTER
; i
++)
397 adapter
->msix_entries
[i
].entry
= i
;
401 netxen_read_mac_addr(struct netxen_adapter
*adapter
)
406 struct net_device
*netdev
= adapter
->netdev
;
407 struct pci_dev
*pdev
= adapter
->pdev
;
409 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
)) {
410 if (netxen_p3_get_mac_addr(adapter
, &mac_addr
) != 0)
413 if (netxen_get_flash_mac_addr(adapter
, &mac_addr
) != 0)
417 p
= (unsigned char *)&mac_addr
;
418 for (i
= 0; i
< 6; i
++)
419 netdev
->dev_addr
[i
] = *(p
+ 5 - i
);
421 memcpy(netdev
->perm_addr
, netdev
->dev_addr
, netdev
->addr_len
);
423 /* set station address */
425 if (!is_valid_ether_addr(netdev
->perm_addr
))
426 dev_warn(&pdev
->dev
, "Bad MAC address %pM.\n", netdev
->dev_addr
);
428 adapter
->macaddr_set(adapter
, netdev
->dev_addr
);
433 static void netxen_set_multicast_list(struct net_device
*dev
)
435 struct netxen_adapter
*adapter
= netdev_priv(dev
);
437 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
))
438 netxen_p3_nic_set_multi(dev
);
440 netxen_p2_nic_set_multi(dev
);
443 static const struct net_device_ops netxen_netdev_ops
= {
444 .ndo_open
= netxen_nic_open
,
445 .ndo_stop
= netxen_nic_close
,
446 .ndo_start_xmit
= netxen_nic_xmit_frame
,
447 .ndo_get_stats
= netxen_nic_get_stats
,
448 .ndo_validate_addr
= eth_validate_addr
,
449 .ndo_set_multicast_list
= netxen_set_multicast_list
,
450 .ndo_set_mac_address
= netxen_nic_set_mac
,
451 .ndo_change_mtu
= netxen_nic_change_mtu
,
452 .ndo_tx_timeout
= netxen_tx_timeout
,
453 #ifdef CONFIG_NET_POLL_CONTROLLER
454 .ndo_poll_controller
= netxen_nic_poll_controller
,
459 netxen_setup_intr(struct netxen_adapter
*adapter
)
461 struct netxen_legacy_intr_set
*legacy_intrp
;
462 struct pci_dev
*pdev
= adapter
->pdev
;
464 adapter
->flags
&= ~(NETXEN_NIC_MSI_ENABLED
| NETXEN_NIC_MSIX_ENABLED
);
466 if (adapter
->ahw
.revision_id
>= NX_P3_B0
)
467 legacy_intrp
= &legacy_intr
[adapter
->ahw
.pci_func
];
469 legacy_intrp
= &legacy_intr
[0];
470 adapter
->legacy_intr
.int_vec_bit
= legacy_intrp
->int_vec_bit
;
471 adapter
->legacy_intr
.tgt_status_reg
= legacy_intrp
->tgt_status_reg
;
472 adapter
->legacy_intr
.tgt_mask_reg
= legacy_intrp
->tgt_mask_reg
;
473 adapter
->legacy_intr
.pci_int_reg
= legacy_intrp
->pci_int_reg
;
475 netxen_set_msix_bit(pdev
, 0);
477 if (adapter
->msix_supported
) {
479 netxen_init_msix_entries(adapter
);
480 if (pci_enable_msix(pdev
, adapter
->msix_entries
,
481 MSIX_ENTRIES_PER_ADAPTER
))
484 adapter
->flags
|= NETXEN_NIC_MSIX_ENABLED
;
485 netxen_set_msix_bit(pdev
, 1);
486 dev_info(&pdev
->dev
, "using msi-x interrupts\n");
490 if (use_msi
&& !pci_enable_msi(pdev
)) {
491 adapter
->flags
|= NETXEN_NIC_MSI_ENABLED
;
492 dev_info(&pdev
->dev
, "using msi interrupts\n");
494 dev_info(&pdev
->dev
, "using legacy interrupts\n");
495 adapter
->msix_entries
[0].vector
= pdev
->irq
;
500 netxen_teardown_intr(struct netxen_adapter
*adapter
)
502 if (adapter
->flags
& NETXEN_NIC_MSIX_ENABLED
)
503 pci_disable_msix(adapter
->pdev
);
504 if (adapter
->flags
& NETXEN_NIC_MSI_ENABLED
)
505 pci_disable_msi(adapter
->pdev
);
509 netxen_cleanup_pci_map(struct netxen_adapter
*adapter
)
511 if (adapter
->ahw
.db_base
!= NULL
)
512 iounmap(adapter
->ahw
.db_base
);
513 if (adapter
->ahw
.pci_base0
!= NULL
)
514 iounmap(adapter
->ahw
.pci_base0
);
515 if (adapter
->ahw
.pci_base1
!= NULL
)
516 iounmap(adapter
->ahw
.pci_base1
);
517 if (adapter
->ahw
.pci_base2
!= NULL
)
518 iounmap(adapter
->ahw
.pci_base2
);
522 netxen_setup_pci_map(struct netxen_adapter
*adapter
)
524 void __iomem
*mem_ptr0
= NULL
;
525 void __iomem
*mem_ptr1
= NULL
;
526 void __iomem
*mem_ptr2
= NULL
;
527 void __iomem
*db_ptr
= NULL
;
529 unsigned long mem_base
, mem_len
, db_base
, db_len
= 0, pci_len0
= 0;
531 struct pci_dev
*pdev
= adapter
->pdev
;
532 int pci_func
= adapter
->ahw
.pci_func
;
537 * Set the CRB window to invalid. If any register in window 0 is
538 * accessed it should set the window to 0 and then reset it to 1.
540 adapter
->curr_window
= 255;
541 adapter
->ahw
.qdr_sn_window
= -1;
542 adapter
->ahw
.ddr_mn_window
= -1;
544 /* remap phys address */
545 mem_base
= pci_resource_start(pdev
, 0); /* 0 is for BAR 0 */
546 mem_len
= pci_resource_len(pdev
, 0);
549 adapter
->hw_write_wx
= netxen_nic_hw_write_wx_128M
;
550 adapter
->hw_read_wx
= netxen_nic_hw_read_wx_128M
;
551 adapter
->pci_read_immediate
= netxen_nic_pci_read_immediate_128M
;
552 adapter
->pci_write_immediate
= netxen_nic_pci_write_immediate_128M
;
553 adapter
->pci_read_normalize
= netxen_nic_pci_read_normalize_128M
;
554 adapter
->pci_write_normalize
= netxen_nic_pci_write_normalize_128M
;
555 adapter
->pci_set_window
= netxen_nic_pci_set_window_128M
;
556 adapter
->pci_mem_read
= netxen_nic_pci_mem_read_128M
;
557 adapter
->pci_mem_write
= netxen_nic_pci_mem_write_128M
;
559 /* 128 Meg of memory */
560 if (mem_len
== NETXEN_PCI_128MB_SIZE
) {
561 mem_ptr0
= ioremap(mem_base
, FIRST_PAGE_GROUP_SIZE
);
562 mem_ptr1
= ioremap(mem_base
+ SECOND_PAGE_GROUP_START
,
563 SECOND_PAGE_GROUP_SIZE
);
564 mem_ptr2
= ioremap(mem_base
+ THIRD_PAGE_GROUP_START
,
565 THIRD_PAGE_GROUP_SIZE
);
566 } else if (mem_len
== NETXEN_PCI_32MB_SIZE
) {
567 mem_ptr1
= ioremap(mem_base
, SECOND_PAGE_GROUP_SIZE
);
568 mem_ptr2
= ioremap(mem_base
+ THIRD_PAGE_GROUP_START
-
569 SECOND_PAGE_GROUP_START
, THIRD_PAGE_GROUP_SIZE
);
570 } else if (mem_len
== NETXEN_PCI_2MB_SIZE
) {
571 adapter
->hw_write_wx
= netxen_nic_hw_write_wx_2M
;
572 adapter
->hw_read_wx
= netxen_nic_hw_read_wx_2M
;
573 adapter
->pci_read_immediate
= netxen_nic_pci_read_immediate_2M
;
574 adapter
->pci_write_immediate
=
575 netxen_nic_pci_write_immediate_2M
;
576 adapter
->pci_read_normalize
= netxen_nic_pci_read_normalize_2M
;
577 adapter
->pci_write_normalize
=
578 netxen_nic_pci_write_normalize_2M
;
579 adapter
->pci_set_window
= netxen_nic_pci_set_window_2M
;
580 adapter
->pci_mem_read
= netxen_nic_pci_mem_read_2M
;
581 adapter
->pci_mem_write
= netxen_nic_pci_mem_write_2M
;
583 mem_ptr0
= pci_ioremap_bar(pdev
, 0);
584 if (mem_ptr0
== NULL
) {
585 dev_err(&pdev
->dev
, "failed to map PCI bar 0\n");
590 adapter
->ahw
.ddr_mn_window
= 0;
591 adapter
->ahw
.qdr_sn_window
= 0;
593 adapter
->ahw
.mn_win_crb
= 0x100000 + PCIX_MN_WINDOW
+
595 adapter
->ahw
.ms_win_crb
= 0x100000 + PCIX_SN_WINDOW
;
597 adapter
->ahw
.ms_win_crb
+= (pci_func
* 0x20);
599 adapter
->ahw
.ms_win_crb
+=
600 0xA0 + ((pci_func
- 4) * 0x10);
605 dev_info(&pdev
->dev
, "%dMB memory map\n", (int)(mem_len
>>20));
607 adapter
->ahw
.pci_base0
= mem_ptr0
;
608 adapter
->ahw
.pci_len0
= pci_len0
;
609 adapter
->ahw
.pci_base1
= mem_ptr1
;
610 adapter
->ahw
.pci_base2
= mem_ptr2
;
612 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
))
615 db_base
= pci_resource_start(pdev
, 4); /* doorbell is on bar 4 */
616 db_len
= pci_resource_len(pdev
, 4);
619 printk(KERN_ERR
"%s: doorbell is disabled\n",
620 netxen_nic_driver_name
);
625 db_ptr
= ioremap(db_base
, NETXEN_DB_MAPSIZE_BYTES
);
627 printk(KERN_ERR
"%s: Failed to allocate doorbell map.",
628 netxen_nic_driver_name
);
634 adapter
->ahw
.db_base
= db_ptr
;
635 adapter
->ahw
.db_len
= db_len
;
639 netxen_cleanup_pci_map(adapter
);
644 netxen_start_firmware(struct netxen_adapter
*adapter
)
646 int val
, err
, first_boot
;
647 struct pci_dev
*pdev
= adapter
->pdev
;
649 int first_driver
= 0;
650 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
)) {
651 if (adapter
->ahw
.pci_func
== 0)
654 if (adapter
->portnum
== 0)
661 first_boot
= adapter
->pci_read_normalize(adapter
,
662 NETXEN_CAM_RAM(0x1fc));
664 err
= netxen_check_hw_init(adapter
, first_boot
);
666 dev_err(&pdev
->dev
, "error in init HW init sequence\n");
670 if (first_boot
!= 0x55555555) {
671 adapter
->pci_write_normalize(adapter
,
672 CRB_CMDPEG_STATE
, 0);
673 netxen_pinit_from_rom(adapter
, 0);
677 netxen_nic_reg_write(adapter
, CRB_DMA_SHIFT
, 0x55555555);
678 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
))
679 netxen_set_port_mode(adapter
);
681 netxen_load_firmware(adapter
);
683 if (NX_IS_REVISION_P2(adapter
->ahw
.revision_id
)) {
685 /* Initialize multicast addr pool owners */
687 if (adapter
->ahw
.port_type
== NETXEN_NIC_XGBE
)
689 netxen_crb_writelit_adapter(adapter
,
690 NETXEN_MAC_ADDR_CNTL_REG
, val
);
694 err
= netxen_initialize_adapter_offload(adapter
);
699 * Tell the hardware our version number.
701 val
= (_NETXEN_NIC_LINUX_MAJOR
<< 16)
702 | ((_NETXEN_NIC_LINUX_MINOR
<< 8))
703 | (_NETXEN_NIC_LINUX_SUBVERSION
);
704 adapter
->pci_write_normalize(adapter
, CRB_DRIVER_VERSION
, val
);
706 /* Handshake with the card before we register the devices. */
707 err
= netxen_phantom_init(adapter
, NETXEN_NIC_PEG_TUNE
);
709 netxen_free_adapter_offload(adapter
);
717 netxen_nic_request_irq(struct netxen_adapter
*adapter
)
719 irq_handler_t handler
;
720 struct nx_host_sds_ring
*sds_ring
;
723 unsigned long flags
= IRQF_SAMPLE_RANDOM
;
724 struct net_device
*netdev
= adapter
->netdev
;
725 struct netxen_recv_context
*recv_ctx
= &adapter
->recv_ctx
;
727 if (adapter
->flags
& NETXEN_NIC_MSIX_ENABLED
)
728 handler
= netxen_msix_intr
;
729 else if (adapter
->flags
& NETXEN_NIC_MSI_ENABLED
)
730 handler
= netxen_msi_intr
;
732 flags
|= IRQF_SHARED
;
733 handler
= netxen_intr
;
735 adapter
->irq
= netdev
->irq
;
737 for (ring
= 0; ring
< adapter
->max_sds_rings
; ring
++) {
738 sds_ring
= &recv_ctx
->sds_rings
[ring
];
739 sprintf(sds_ring
->name
, "%16s[%d]", netdev
->name
, ring
);
740 err
= request_irq(sds_ring
->irq
, handler
,
741 flags
, sds_ring
->name
, sds_ring
);
750 netxen_nic_free_irq(struct netxen_adapter
*adapter
)
753 struct nx_host_sds_ring
*sds_ring
;
755 struct netxen_recv_context
*recv_ctx
= &adapter
->recv_ctx
;
757 for (ring
= 0; ring
< adapter
->max_sds_rings
; ring
++) {
758 sds_ring
= &recv_ctx
->sds_rings
[ring
];
759 free_irq(sds_ring
->irq
, sds_ring
);
764 netxen_nic_up(struct netxen_adapter
*adapter
, struct net_device
*netdev
)
768 err
= adapter
->init_port(adapter
, adapter
->physical_port
);
770 printk(KERN_ERR
"%s: Failed to initialize port %d\n",
771 netxen_nic_driver_name
, adapter
->portnum
);
774 adapter
->macaddr_set(adapter
, netdev
->dev_addr
);
776 netxen_nic_set_link_parameters(adapter
);
778 netxen_set_multicast_list(netdev
);
779 if (adapter
->set_mtu
)
780 adapter
->set_mtu(adapter
, netdev
->mtu
);
782 adapter
->ahw
.linkup
= 0;
783 mod_timer(&adapter
->watchdog_timer
, jiffies
);
785 netxen_napi_enable(adapter
);
787 if (adapter
->max_sds_rings
> 1)
788 netxen_config_rss(adapter
, 1);
794 netxen_nic_down(struct netxen_adapter
*adapter
, struct net_device
*netdev
)
796 netif_carrier_off(netdev
);
797 netif_stop_queue(netdev
);
798 netxen_napi_disable(adapter
);
800 if (adapter
->stop_port
)
801 adapter
->stop_port(adapter
);
803 netxen_release_tx_buffers(adapter
);
805 FLUSH_SCHEDULED_WORK();
806 del_timer_sync(&adapter
->watchdog_timer
);
811 netxen_nic_attach(struct netxen_adapter
*adapter
)
813 struct net_device
*netdev
= adapter
->netdev
;
814 struct pci_dev
*pdev
= adapter
->pdev
;
816 struct nx_host_rds_ring
*rds_ring
;
817 struct nx_host_tx_ring
*tx_ring
;
819 err
= netxen_init_firmware(adapter
);
821 printk(KERN_ERR
"Failed to init firmware\n");
825 if (adapter
->fw_major
< 4)
826 adapter
->max_rds_rings
= 3;
828 adapter
->max_rds_rings
= 2;
830 err
= netxen_alloc_sw_resources(adapter
);
832 printk(KERN_ERR
"%s: Error in setting sw resources\n",
837 netxen_nic_clear_stats(adapter
);
839 err
= netxen_alloc_hw_resources(adapter
);
841 printk(KERN_ERR
"%s: Error in setting hw resources\n",
843 goto err_out_free_sw
;
846 if (adapter
->fw_major
< 4) {
847 tx_ring
= &adapter
->tx_ring
;
848 tx_ring
->crb_cmd_producer
= crb_cmd_producer
[adapter
->portnum
];
849 tx_ring
->crb_cmd_consumer
= crb_cmd_consumer
[adapter
->portnum
];
851 netxen_nic_update_cmd_producer(adapter
, tx_ring
, 0);
852 netxen_nic_update_cmd_consumer(adapter
, tx_ring
, 0);
855 for (ring
= 0; ring
< adapter
->max_rds_rings
; ring
++) {
856 rds_ring
= &adapter
->recv_ctx
.rds_rings
[ring
];
857 netxen_post_rx_buffers(adapter
, ring
, rds_ring
);
860 err
= netxen_nic_request_irq(adapter
);
862 dev_err(&pdev
->dev
, "%s: failed to setup interrupt\n",
864 goto err_out_free_rxbuf
;
867 adapter
->is_up
= NETXEN_ADAPTER_UP_MAGIC
;
871 netxen_release_rx_buffers(adapter
);
872 netxen_free_hw_resources(adapter
);
874 netxen_free_sw_resources(adapter
);
879 netxen_nic_detach(struct netxen_adapter
*adapter
)
881 netxen_nic_free_irq(adapter
);
883 netxen_release_rx_buffers(adapter
);
884 netxen_free_hw_resources(adapter
);
885 netxen_free_sw_resources(adapter
);
891 netxen_nic_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
893 struct net_device
*netdev
= NULL
;
894 struct netxen_adapter
*adapter
= NULL
;
896 int pci_func_id
= PCI_FUNC(pdev
->devfn
);
899 if (pdev
->class != 0x020000) {
900 printk(KERN_DEBUG
"NetXen function %d, class %x will not "
901 "be enabled.\n",pci_func_id
, pdev
->class);
905 if (pdev
->revision
>= NX_P3_A0
&& pdev
->revision
< NX_P3_B1
) {
906 printk(KERN_WARNING
"NetXen chip revisions between 0x%x-0x%x"
907 "will not be enabled.\n",
912 if ((err
= pci_enable_device(pdev
)))
915 if (!(pci_resource_flags(pdev
, 0) & IORESOURCE_MEM
)) {
917 goto err_out_disable_pdev
;
920 if ((err
= pci_request_regions(pdev
, netxen_nic_driver_name
)))
921 goto err_out_disable_pdev
;
923 pci_set_master(pdev
);
925 netdev
= alloc_etherdev(sizeof(struct netxen_adapter
));
927 printk(KERN_ERR
"%s: Failed to allocate memory for the "
928 "device block.Check system memory resource"
929 " usage.\n", netxen_nic_driver_name
);
930 goto err_out_free_res
;
933 SET_NETDEV_DEV(netdev
, &pdev
->dev
);
935 adapter
= netdev_priv(netdev
);
936 adapter
->netdev
= netdev
;
937 adapter
->pdev
= pdev
;
938 adapter
->ahw
.pci_func
= pci_func_id
;
940 revision_id
= pdev
->revision
;
941 adapter
->ahw
.revision_id
= revision_id
;
943 err
= nx_set_dma_mask(adapter
, revision_id
);
945 goto err_out_free_netdev
;
947 rwlock_init(&adapter
->adapter_lock
);
948 spin_lock_init(&adapter
->tx_clean_lock
);
950 err
= netxen_setup_pci_map(adapter
);
952 goto err_out_free_netdev
;
954 /* This will be reset for mezz cards */
955 adapter
->portnum
= pci_func_id
;
956 adapter
->rx_csum
= 1;
957 adapter
->mc_enabled
= 0;
958 if (NX_IS_REVISION_P3(revision_id
))
959 adapter
->max_mc_count
= 38;
961 adapter
->max_mc_count
= 16;
963 netdev
->netdev_ops
= &netxen_netdev_ops
;
964 netdev
->watchdog_timeo
= 2*HZ
;
966 netxen_nic_change_mtu(netdev
, netdev
->mtu
);
968 SET_ETHTOOL_OPS(netdev
, &netxen_nic_ethtool_ops
);
970 netdev
->features
|= (NETIF_F_SG
| NETIF_F_IP_CSUM
| NETIF_F_TSO
);
971 netdev
->vlan_features
|= (NETIF_F_SG
| NETIF_F_IP_CSUM
| NETIF_F_TSO
);
973 if (NX_IS_REVISION_P3(revision_id
)) {
974 netdev
->features
|= (NETIF_F_IPV6_CSUM
| NETIF_F_TSO6
);
975 netdev
->vlan_features
|= (NETIF_F_IPV6_CSUM
| NETIF_F_TSO6
);
978 if (adapter
->pci_using_dac
) {
979 netdev
->features
|= NETIF_F_HIGHDMA
;
980 netdev
->vlan_features
|= NETIF_F_HIGHDMA
;
983 if (netxen_nic_get_board_info(adapter
) != 0) {
984 printk("%s: Error getting board config info.\n",
985 netxen_nic_driver_name
);
987 goto err_out_iounmap
;
990 netxen_initialize_adapter_ops(adapter
);
992 /* Mezz cards have PCI function 0,2,3 enabled */
993 switch (adapter
->ahw
.board_type
) {
994 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ
:
995 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ
:
996 if (pci_func_id
>= 2)
997 adapter
->portnum
= pci_func_id
- 2;
1003 err
= netxen_start_firmware(adapter
);
1005 goto err_out_iounmap
;
1007 nx_update_dma_mask(adapter
);
1009 netxen_nic_get_firmware_info(adapter
);
1012 * See if the firmware gave us a virtual-physical port mapping.
1014 adapter
->physical_port
= adapter
->portnum
;
1015 if (adapter
->fw_major
< 4) {
1016 i
= adapter
->pci_read_normalize(adapter
,
1017 CRB_V2P(adapter
->portnum
));
1018 if (i
!= 0x55555555)
1019 adapter
->physical_port
= i
;
1022 netxen_check_options(adapter
);
1024 netxen_setup_intr(adapter
);
1026 netdev
->irq
= adapter
->msix_entries
[0].vector
;
1028 netxen_napi_add(adapter
, netdev
);
1030 init_timer(&adapter
->watchdog_timer
);
1031 adapter
->watchdog_timer
.function
= &netxen_watchdog
;
1032 adapter
->watchdog_timer
.data
= (unsigned long)adapter
;
1033 INIT_WORK(&adapter
->watchdog_task
, netxen_watchdog_task
);
1034 INIT_WORK(&adapter
->tx_timeout_task
, netxen_tx_timeout_task
);
1036 err
= netxen_read_mac_addr(adapter
);
1038 dev_warn(&pdev
->dev
, "failed to read mac addr\n");
1040 netif_carrier_off(netdev
);
1041 netif_stop_queue(netdev
);
1043 if ((err
= register_netdev(netdev
))) {
1044 printk(KERN_ERR
"%s: register_netdev failed port #%d"
1045 " aborting\n", netxen_nic_driver_name
,
1048 goto err_out_disable_msi
;
1051 pci_set_drvdata(pdev
, adapter
);
1053 switch (adapter
->ahw
.port_type
) {
1054 case NETXEN_NIC_GBE
:
1055 dev_info(&adapter
->pdev
->dev
, "%s: GbE port initialized\n",
1056 adapter
->netdev
->name
);
1058 case NETXEN_NIC_XGBE
:
1059 dev_info(&adapter
->pdev
->dev
, "%s: XGbE port initialized\n",
1060 adapter
->netdev
->name
);
1066 err_out_disable_msi
:
1067 netxen_teardown_intr(adapter
);
1069 netxen_free_adapter_offload(adapter
);
1072 netxen_cleanup_pci_map(adapter
);
1074 err_out_free_netdev
:
1075 free_netdev(netdev
);
1078 pci_release_regions(pdev
);
1080 err_out_disable_pdev
:
1081 pci_set_drvdata(pdev
, NULL
);
1082 pci_disable_device(pdev
);
1086 static void __devexit
netxen_nic_remove(struct pci_dev
*pdev
)
1088 struct netxen_adapter
*adapter
;
1089 struct net_device
*netdev
;
1091 adapter
= pci_get_drvdata(pdev
);
1092 if (adapter
== NULL
)
1095 netdev
= adapter
->netdev
;
1097 unregister_netdev(netdev
);
1099 if (adapter
->is_up
== NETXEN_ADAPTER_UP_MAGIC
) {
1100 netxen_nic_detach(adapter
);
1102 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
))
1103 netxen_p3_free_mac_list(adapter
);
1106 if (adapter
->portnum
== 0)
1107 netxen_free_adapter_offload(adapter
);
1109 netxen_teardown_intr(adapter
);
1111 netxen_cleanup_pci_map(adapter
);
1113 pci_release_regions(pdev
);
1114 pci_disable_device(pdev
);
1115 pci_set_drvdata(pdev
, NULL
);
1117 free_netdev(netdev
);
1121 netxen_nic_suspend(struct pci_dev
*pdev
, pm_message_t state
)
1124 struct netxen_adapter
*adapter
= pci_get_drvdata(pdev
);
1125 struct net_device
*netdev
= adapter
->netdev
;
1127 netif_device_detach(netdev
);
1129 if (netif_running(netdev
))
1130 netxen_nic_down(adapter
, netdev
);
1132 if (adapter
->is_up
== NETXEN_ADAPTER_UP_MAGIC
)
1133 netxen_nic_detach(adapter
);
1135 pci_save_state(pdev
);
1137 if (netxen_nic_wol_supported(adapter
)) {
1138 pci_enable_wake(pdev
, PCI_D3cold
, 1);
1139 pci_enable_wake(pdev
, PCI_D3hot
, 1);
1142 pci_disable_device(pdev
);
1143 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
1149 netxen_nic_resume(struct pci_dev
*pdev
)
1151 struct netxen_adapter
*adapter
= pci_get_drvdata(pdev
);
1152 struct net_device
*netdev
= adapter
->netdev
;
1155 pci_set_power_state(pdev
, PCI_D0
);
1156 pci_restore_state(pdev
);
1158 err
= pci_enable_device(pdev
);
1162 adapter
->curr_window
= 255;
1164 err
= netxen_start_firmware(adapter
);
1166 dev_err(&pdev
->dev
, "failed to start firmware\n");
1170 if (netif_running(netdev
)) {
1171 err
= netxen_nic_attach(adapter
);
1175 err
= netxen_nic_up(adapter
, netdev
);
1179 netif_device_attach(netdev
);
1185 static int netxen_nic_open(struct net_device
*netdev
)
1187 struct netxen_adapter
*adapter
= netdev_priv(netdev
);
1190 if (adapter
->driver_mismatch
)
1193 if (adapter
->is_up
!= NETXEN_ADAPTER_UP_MAGIC
) {
1194 err
= netxen_nic_attach(adapter
);
1199 err
= netxen_nic_up(adapter
, netdev
);
1203 netif_start_queue(netdev
);
1208 netxen_nic_detach(adapter
);
1213 * netxen_nic_close - Disables a network interface entry point
1215 static int netxen_nic_close(struct net_device
*netdev
)
1217 struct netxen_adapter
*adapter
= netdev_priv(netdev
);
1219 netxen_nic_down(adapter
, netdev
);
1223 static bool netxen_tso_check(struct net_device
*netdev
,
1224 struct cmd_desc_type0
*desc
, struct sk_buff
*skb
)
1227 u8 opcode
= TX_ETHER_PKT
;
1228 __be16 protocol
= skb
->protocol
;
1231 if (protocol
== cpu_to_be16(ETH_P_8021Q
)) {
1232 struct vlan_ethhdr
*vh
= (struct vlan_ethhdr
*)skb
->data
;
1233 protocol
= vh
->h_vlan_encapsulated_proto
;
1234 flags
= FLAGS_VLAN_TAGGED
;
1237 if ((netdev
->features
& (NETIF_F_TSO
| NETIF_F_TSO6
)) &&
1238 skb_shinfo(skb
)->gso_size
> 0) {
1240 desc
->mss
= cpu_to_le16(skb_shinfo(skb
)->gso_size
);
1241 desc
->total_hdr_length
=
1242 skb_transport_offset(skb
) + tcp_hdrlen(skb
);
1244 opcode
= (protocol
== cpu_to_be16(ETH_P_IPV6
)) ?
1245 TX_TCP_LSO6
: TX_TCP_LSO
;
1248 } else if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
1251 if (protocol
== cpu_to_be16(ETH_P_IP
)) {
1252 l4proto
= ip_hdr(skb
)->protocol
;
1254 if (l4proto
== IPPROTO_TCP
)
1255 opcode
= TX_TCP_PKT
;
1256 else if(l4proto
== IPPROTO_UDP
)
1257 opcode
= TX_UDP_PKT
;
1258 } else if (protocol
== cpu_to_be16(ETH_P_IPV6
)) {
1259 l4proto
= ipv6_hdr(skb
)->nexthdr
;
1261 if (l4proto
== IPPROTO_TCP
)
1262 opcode
= TX_TCPV6_PKT
;
1263 else if(l4proto
== IPPROTO_UDP
)
1264 opcode
= TX_UDPV6_PKT
;
1267 desc
->tcp_hdr_offset
= skb_transport_offset(skb
);
1268 desc
->ip_hdr_offset
= skb_network_offset(skb
);
1269 netxen_set_tx_flags_opcode(desc
, flags
, opcode
);
1274 netxen_clean_tx_dma_mapping(struct pci_dev
*pdev
,
1275 struct netxen_cmd_buffer
*pbuf
, int last
)
1278 struct netxen_skb_frag
*buffrag
;
1280 buffrag
= &pbuf
->frag_array
[0];
1281 pci_unmap_single(pdev
, buffrag
->dma
,
1282 buffrag
->length
, PCI_DMA_TODEVICE
);
1284 for (k
= 1; k
< last
; k
++) {
1285 buffrag
= &pbuf
->frag_array
[k
];
1286 pci_unmap_page(pdev
, buffrag
->dma
,
1287 buffrag
->length
, PCI_DMA_TODEVICE
);
1292 netxen_clear_cmddesc(u64
*desc
)
1295 for (i
= 0; i
< 8; i
++)
1300 netxen_nic_xmit_frame(struct sk_buff
*skb
, struct net_device
*netdev
)
1302 struct netxen_adapter
*adapter
= netdev_priv(netdev
);
1303 struct nx_host_tx_ring
*tx_ring
= &adapter
->tx_ring
;
1304 unsigned int first_seg_len
= skb
->len
- skb
->data_len
;
1305 struct netxen_cmd_buffer
*pbuf
;
1306 struct netxen_skb_frag
*buffrag
;
1307 struct cmd_desc_type0
*hwdesc
;
1308 struct pci_dev
*pdev
= adapter
->pdev
;
1309 dma_addr_t temp_dma
;
1312 u32 producer
, consumer
;
1313 int frag_count
, no_of_desc
;
1314 u32 num_txd
= tx_ring
->num_desc
;
1315 bool is_tso
= false;
1317 frag_count
= skb_shinfo(skb
)->nr_frags
+ 1;
1319 /* 4 fragments per cmd des */
1320 no_of_desc
= (frag_count
+ 3) >> 2;
1322 producer
= tx_ring
->producer
;
1324 consumer
= tx_ring
->sw_consumer
;
1325 if ((no_of_desc
+2) > find_diff_among(producer
, consumer
, num_txd
)) {
1326 netif_stop_queue(netdev
);
1328 return NETDEV_TX_BUSY
;
1331 hwdesc
= &tx_ring
->desc_head
[producer
];
1332 netxen_clear_cmddesc((u64
*)hwdesc
);
1333 pbuf
= &tx_ring
->cmd_buf_arr
[producer
];
1335 is_tso
= netxen_tso_check(netdev
, hwdesc
, skb
);
1338 pbuf
->frag_count
= frag_count
;
1339 buffrag
= &pbuf
->frag_array
[0];
1340 temp_dma
= pci_map_single(pdev
, skb
->data
, first_seg_len
,
1342 if (pci_dma_mapping_error(pdev
, temp_dma
))
1345 buffrag
->dma
= temp_dma
;
1346 buffrag
->length
= first_seg_len
;
1347 netxen_set_tx_frags_len(hwdesc
, frag_count
, skb
->len
);
1348 netxen_set_tx_port(hwdesc
, adapter
->portnum
);
1350 hwdesc
->buffer_length
[0] = cpu_to_le16(first_seg_len
);
1351 hwdesc
->addr_buffer1
= cpu_to_le64(buffrag
->dma
);
1353 for (i
= 1, k
= 1; i
< frag_count
; i
++, k
++) {
1354 struct skb_frag_struct
*frag
;
1356 unsigned long offset
;
1358 /* move to next desc. if there is a need */
1359 if ((i
& 0x3) == 0) {
1361 producer
= get_next_index(producer
, num_txd
);
1362 hwdesc
= &tx_ring
->desc_head
[producer
];
1363 netxen_clear_cmddesc((u64
*)hwdesc
);
1364 pbuf
= &tx_ring
->cmd_buf_arr
[producer
];
1367 frag
= &skb_shinfo(skb
)->frags
[i
- 1];
1369 offset
= frag
->page_offset
;
1372 temp_dma
= pci_map_page(pdev
, frag
->page
, offset
,
1373 len
, PCI_DMA_TODEVICE
);
1374 if (pci_dma_mapping_error(pdev
, temp_dma
)) {
1375 netxen_clean_tx_dma_mapping(pdev
, pbuf
, i
);
1380 buffrag
->dma
= temp_dma
;
1381 buffrag
->length
= temp_len
;
1383 hwdesc
->buffer_length
[k
] = cpu_to_le16(temp_len
);
1386 hwdesc
->addr_buffer1
= cpu_to_le64(temp_dma
);
1389 hwdesc
->addr_buffer2
= cpu_to_le64(temp_dma
);
1392 hwdesc
->addr_buffer3
= cpu_to_le64(temp_dma
);
1395 hwdesc
->addr_buffer4
= cpu_to_le64(temp_dma
);
1400 producer
= get_next_index(producer
, num_txd
);
1402 /* For LSO, we need to copy the MAC/IP/TCP headers into
1403 * the descriptor ring
1406 int hdr_len
, first_hdr_len
, more_hdr
;
1407 hdr_len
= skb_transport_offset(skb
) + tcp_hdrlen(skb
);
1408 if (hdr_len
> (sizeof(struct cmd_desc_type0
) - 2)) {
1409 first_hdr_len
= sizeof(struct cmd_desc_type0
) - 2;
1412 first_hdr_len
= hdr_len
;
1415 /* copy the MAC/IP/TCP headers to the cmd descriptor list */
1416 hwdesc
= &tx_ring
->desc_head
[producer
];
1417 pbuf
= &tx_ring
->cmd_buf_arr
[producer
];
1420 /* copy the first 64 bytes */
1421 memcpy(((void *)hwdesc
) + 2,
1422 (void *)(skb
->data
), first_hdr_len
);
1423 producer
= get_next_index(producer
, num_txd
);
1426 hwdesc
= &tx_ring
->desc_head
[producer
];
1427 pbuf
= &tx_ring
->cmd_buf_arr
[producer
];
1429 /* copy the next 64 bytes - should be enough except
1430 * for pathological case
1432 skb_copy_from_linear_data_offset(skb
, first_hdr_len
,
1436 producer
= get_next_index(producer
, num_txd
);
1440 tx_ring
->producer
= producer
;
1441 adapter
->stats
.txbytes
+= skb
->len
;
1443 netxen_nic_update_cmd_producer(adapter
, tx_ring
, producer
);
1445 adapter
->stats
.xmitcalled
++;
1446 netdev
->trans_start
= jiffies
;
1448 return NETDEV_TX_OK
;
1451 adapter
->stats
.txdropped
++;
1452 dev_kfree_skb_any(skb
);
1453 return NETDEV_TX_OK
;
1456 static int netxen_nic_check_temp(struct netxen_adapter
*adapter
)
1458 struct net_device
*netdev
= adapter
->netdev
;
1459 uint32_t temp
, temp_state
, temp_val
;
1462 temp
= adapter
->pci_read_normalize(adapter
, CRB_TEMP_STATE
);
1464 temp_state
= nx_get_temp_state(temp
);
1465 temp_val
= nx_get_temp_val(temp
);
1467 if (temp_state
== NX_TEMP_PANIC
) {
1469 "%s: Device temperature %d degrees C exceeds"
1470 " maximum allowed. Hardware has been shut down.\n",
1471 netxen_nic_driver_name
, temp_val
);
1473 netif_carrier_off(netdev
);
1474 netif_stop_queue(netdev
);
1476 } else if (temp_state
== NX_TEMP_WARN
) {
1477 if (adapter
->temp
== NX_TEMP_NORMAL
) {
1479 "%s: Device temperature %d degrees C "
1480 "exceeds operating range."
1481 " Immediate action needed.\n",
1482 netxen_nic_driver_name
, temp_val
);
1485 if (adapter
->temp
== NX_TEMP_WARN
) {
1487 "%s: Device temperature is now %d degrees C"
1488 " in normal range.\n", netxen_nic_driver_name
,
1492 adapter
->temp
= temp_state
;
1496 static void netxen_nic_handle_phy_intr(struct netxen_adapter
*adapter
)
1498 struct net_device
*netdev
= adapter
->netdev
;
1499 u32 val
, port
, linkup
;
1501 port
= adapter
->physical_port
;
1503 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
)) {
1504 val
= adapter
->pci_read_normalize(adapter
, CRB_XG_STATE_P3
);
1505 val
= XG_LINK_STATE_P3(adapter
->ahw
.pci_func
, val
);
1506 linkup
= (val
== XG_LINK_UP_P3
);
1508 val
= adapter
->pci_read_normalize(adapter
, CRB_XG_STATE
);
1509 if (adapter
->ahw
.port_type
== NETXEN_NIC_GBE
)
1510 linkup
= (val
>> port
) & 1;
1512 val
= (val
>> port
*8) & 0xff;
1513 linkup
= (val
== XG_LINK_UP
);
1517 if (adapter
->ahw
.linkup
&& !linkup
) {
1518 printk(KERN_INFO
"%s: %s NIC Link is down\n",
1519 netxen_nic_driver_name
, netdev
->name
);
1520 adapter
->ahw
.linkup
= 0;
1521 if (netif_running(netdev
)) {
1522 netif_carrier_off(netdev
);
1523 netif_stop_queue(netdev
);
1526 netxen_nic_set_link_parameters(adapter
);
1527 } else if (!adapter
->ahw
.linkup
&& linkup
) {
1528 printk(KERN_INFO
"%s: %s NIC Link is up\n",
1529 netxen_nic_driver_name
, netdev
->name
);
1530 adapter
->ahw
.linkup
= 1;
1531 if (netif_running(netdev
)) {
1532 netif_carrier_on(netdev
);
1533 netif_wake_queue(netdev
);
1536 netxen_nic_set_link_parameters(adapter
);
1540 static void netxen_watchdog(unsigned long v
)
1542 struct netxen_adapter
*adapter
= (struct netxen_adapter
*)v
;
1544 SCHEDULE_WORK(&adapter
->watchdog_task
);
1547 void netxen_watchdog_task(struct work_struct
*work
)
1549 struct netxen_adapter
*adapter
=
1550 container_of(work
, struct netxen_adapter
, watchdog_task
);
1552 if ((adapter
->portnum
== 0) && netxen_nic_check_temp(adapter
))
1555 netxen_nic_handle_phy_intr(adapter
);
1557 if (netif_running(adapter
->netdev
))
1558 mod_timer(&adapter
->watchdog_timer
, jiffies
+ 2 * HZ
);
1561 static void netxen_tx_timeout(struct net_device
*netdev
)
1563 struct netxen_adapter
*adapter
= (struct netxen_adapter
*)
1564 netdev_priv(netdev
);
1565 SCHEDULE_WORK(&adapter
->tx_timeout_task
);
1568 static void netxen_tx_timeout_task(struct work_struct
*work
)
1570 struct netxen_adapter
*adapter
=
1571 container_of(work
, struct netxen_adapter
, tx_timeout_task
);
1573 printk(KERN_ERR
"%s %s: transmit timeout, resetting.\n",
1574 netxen_nic_driver_name
, adapter
->netdev
->name
);
1576 netxen_napi_disable(adapter
);
1578 adapter
->netdev
->trans_start
= jiffies
;
1580 netxen_napi_enable(adapter
);
1581 netif_wake_queue(adapter
->netdev
);
1584 struct net_device_stats
*netxen_nic_get_stats(struct net_device
*netdev
)
1586 struct netxen_adapter
*adapter
= netdev_priv(netdev
);
1587 struct net_device_stats
*stats
= &adapter
->net_stats
;
1589 memset(stats
, 0, sizeof(*stats
));
1591 stats
->rx_packets
= adapter
->stats
.no_rcv
;
1592 stats
->tx_packets
= adapter
->stats
.xmitfinished
;
1593 stats
->rx_bytes
= adapter
->stats
.rxbytes
;
1594 stats
->tx_bytes
= adapter
->stats
.txbytes
;
1595 stats
->rx_dropped
= adapter
->stats
.rxdropped
;
1596 stats
->tx_dropped
= adapter
->stats
.txdropped
;
1601 static irqreturn_t
netxen_intr(int irq
, void *data
)
1603 struct nx_host_sds_ring
*sds_ring
= data
;
1604 struct netxen_adapter
*adapter
= sds_ring
->adapter
;
1607 status
= adapter
->pci_read_immediate(adapter
, ISR_INT_VECTOR
);
1609 if (!(status
& adapter
->legacy_intr
.int_vec_bit
))
1612 if (adapter
->ahw
.revision_id
>= NX_P3_B1
) {
1613 /* check interrupt state machine, to be sure */
1614 status
= adapter
->pci_read_immediate(adapter
,
1616 if (!ISR_LEGACY_INT_TRIGGERED(status
))
1620 unsigned long our_int
= 0;
1622 our_int
= adapter
->pci_read_normalize(adapter
, CRB_INT_VECTOR
);
1624 /* not our interrupt */
1625 if (!test_and_clear_bit((7 + adapter
->portnum
), &our_int
))
1628 /* claim interrupt */
1629 adapter
->pci_write_normalize(adapter
,
1630 CRB_INT_VECTOR
, (our_int
& 0xffffffff));
1633 /* clear interrupt */
1634 if (adapter
->fw_major
< 4)
1635 netxen_nic_disable_int(sds_ring
);
1637 adapter
->pci_write_immediate(adapter
,
1638 adapter
->legacy_intr
.tgt_status_reg
,
1640 /* read twice to ensure write is flushed */
1641 adapter
->pci_read_immediate(adapter
, ISR_INT_VECTOR
);
1642 adapter
->pci_read_immediate(adapter
, ISR_INT_VECTOR
);
1644 napi_schedule(&sds_ring
->napi
);
1649 static irqreturn_t
netxen_msi_intr(int irq
, void *data
)
1651 struct nx_host_sds_ring
*sds_ring
= data
;
1652 struct netxen_adapter
*adapter
= sds_ring
->adapter
;
1654 /* clear interrupt */
1655 adapter
->pci_write_immediate(adapter
,
1656 msi_tgt_status
[adapter
->ahw
.pci_func
], 0xffffffff);
1658 napi_schedule(&sds_ring
->napi
);
1662 static irqreturn_t
netxen_msix_intr(int irq
, void *data
)
1664 struct nx_host_sds_ring
*sds_ring
= data
;
1666 napi_schedule(&sds_ring
->napi
);
1670 static int netxen_nic_poll(struct napi_struct
*napi
, int budget
)
1672 struct nx_host_sds_ring
*sds_ring
=
1673 container_of(napi
, struct nx_host_sds_ring
, napi
);
1675 struct netxen_adapter
*adapter
= sds_ring
->adapter
;
1680 tx_complete
= netxen_process_cmd_ring(adapter
);
1682 work_done
= netxen_process_rcv_ring(sds_ring
, budget
);
1684 if ((work_done
< budget
) && tx_complete
) {
1685 napi_complete(&sds_ring
->napi
);
1686 netxen_nic_enable_int(sds_ring
);
1692 #ifdef CONFIG_NET_POLL_CONTROLLER
1693 static void netxen_nic_poll_controller(struct net_device
*netdev
)
1695 struct netxen_adapter
*adapter
= netdev_priv(netdev
);
1696 disable_irq(adapter
->irq
);
1697 netxen_intr(adapter
->irq
, adapter
);
1698 enable_irq(adapter
->irq
);
1702 static struct pci_driver netxen_driver
= {
1703 .name
= netxen_nic_driver_name
,
1704 .id_table
= netxen_pci_tbl
,
1705 .probe
= netxen_nic_probe
,
1706 .remove
= __devexit_p(netxen_nic_remove
),
1707 .suspend
= netxen_nic_suspend
,
1708 .resume
= netxen_nic_resume
1711 /* Driver Registration on NetXen card */
1713 static int __init
netxen_init_module(void)
1715 printk(KERN_INFO
"%s\n", netxen_nic_driver_string
);
1717 if ((netxen_workq
= create_singlethread_workqueue("netxen")) == NULL
)
1720 return pci_register_driver(&netxen_driver
);
1723 module_init(netxen_init_module
);
1725 static void __exit
netxen_exit_module(void)
1727 pci_unregister_driver(&netxen_driver
);
1728 destroy_workqueue(netxen_workq
);
1731 module_exit(netxen_exit_module
);