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/highmem.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 uint32_t crb_producer
)
112 adapter
->pci_write_normalize(adapter
,
113 adapter
->crb_addr_cmd_producer
, crb_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
,
125 adapter
->pci_write_normalize(adapter
,
126 adapter
->crb_addr_cmd_consumer
, crb_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_32BIT_MASK
;
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_32BIT_MASK
;
219 if (revision_id
>= NX_P3_B0
)
220 mask
= DMA_39BIT_MASK
;
221 else if (revision_id
== NX_P2_C1
)
222 mask
= DMA_35BIT_MASK
;
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
);
465 adapter
->intr_scheme
= -1;
466 adapter
->msi_mode
= -1;
468 if (adapter
->ahw
.revision_id
>= NX_P3_B0
)
469 legacy_intrp
= &legacy_intr
[adapter
->ahw
.pci_func
];
471 legacy_intrp
= &legacy_intr
[0];
472 adapter
->legacy_intr
.int_vec_bit
= legacy_intrp
->int_vec_bit
;
473 adapter
->legacy_intr
.tgt_status_reg
= legacy_intrp
->tgt_status_reg
;
474 adapter
->legacy_intr
.tgt_mask_reg
= legacy_intrp
->tgt_mask_reg
;
475 adapter
->legacy_intr
.pci_int_reg
= legacy_intrp
->pci_int_reg
;
477 netxen_set_msix_bit(pdev
, 0);
479 if (adapter
->msix_supported
) {
481 netxen_init_msix_entries(adapter
);
482 if (pci_enable_msix(pdev
, adapter
->msix_entries
,
483 MSIX_ENTRIES_PER_ADAPTER
))
486 adapter
->flags
|= NETXEN_NIC_MSIX_ENABLED
;
487 netxen_set_msix_bit(pdev
, 1);
488 dev_info(&pdev
->dev
, "using msi-x interrupts\n");
492 if (use_msi
&& !pci_enable_msi(pdev
)) {
493 adapter
->flags
|= NETXEN_NIC_MSI_ENABLED
;
494 dev_info(&pdev
->dev
, "using msi interrupts\n");
496 dev_info(&pdev
->dev
, "using legacy interrupts\n");
497 adapter
->msix_entries
[0].vector
= pdev
->irq
;
502 netxen_teardown_intr(struct netxen_adapter
*adapter
)
504 if (adapter
->flags
& NETXEN_NIC_MSIX_ENABLED
)
505 pci_disable_msix(adapter
->pdev
);
506 if (adapter
->flags
& NETXEN_NIC_MSI_ENABLED
)
507 pci_disable_msi(adapter
->pdev
);
511 netxen_cleanup_pci_map(struct netxen_adapter
*adapter
)
513 if (adapter
->ahw
.db_base
!= NULL
)
514 iounmap(adapter
->ahw
.db_base
);
515 if (adapter
->ahw
.pci_base0
!= NULL
)
516 iounmap(adapter
->ahw
.pci_base0
);
517 if (adapter
->ahw
.pci_base1
!= NULL
)
518 iounmap(adapter
->ahw
.pci_base1
);
519 if (adapter
->ahw
.pci_base2
!= NULL
)
520 iounmap(adapter
->ahw
.pci_base2
);
524 netxen_setup_pci_map(struct netxen_adapter
*adapter
)
526 void __iomem
*mem_ptr0
= NULL
;
527 void __iomem
*mem_ptr1
= NULL
;
528 void __iomem
*mem_ptr2
= NULL
;
529 void __iomem
*db_ptr
= NULL
;
531 unsigned long mem_base
, mem_len
, db_base
, db_len
= 0, pci_len0
= 0;
533 struct pci_dev
*pdev
= adapter
->pdev
;
534 int pci_func
= adapter
->ahw
.pci_func
;
539 * Set the CRB window to invalid. If any register in window 0 is
540 * accessed it should set the window to 0 and then reset it to 1.
542 adapter
->curr_window
= 255;
543 adapter
->ahw
.qdr_sn_window
= -1;
544 adapter
->ahw
.ddr_mn_window
= -1;
546 /* remap phys address */
547 mem_base
= pci_resource_start(pdev
, 0); /* 0 is for BAR 0 */
548 mem_len
= pci_resource_len(pdev
, 0);
551 adapter
->hw_write_wx
= netxen_nic_hw_write_wx_128M
;
552 adapter
->hw_read_wx
= netxen_nic_hw_read_wx_128M
;
553 adapter
->pci_read_immediate
= netxen_nic_pci_read_immediate_128M
;
554 adapter
->pci_write_immediate
= netxen_nic_pci_write_immediate_128M
;
555 adapter
->pci_read_normalize
= netxen_nic_pci_read_normalize_128M
;
556 adapter
->pci_write_normalize
= netxen_nic_pci_write_normalize_128M
;
557 adapter
->pci_set_window
= netxen_nic_pci_set_window_128M
;
558 adapter
->pci_mem_read
= netxen_nic_pci_mem_read_128M
;
559 adapter
->pci_mem_write
= netxen_nic_pci_mem_write_128M
;
561 /* 128 Meg of memory */
562 if (mem_len
== NETXEN_PCI_128MB_SIZE
) {
563 mem_ptr0
= ioremap(mem_base
, FIRST_PAGE_GROUP_SIZE
);
564 mem_ptr1
= ioremap(mem_base
+ SECOND_PAGE_GROUP_START
,
565 SECOND_PAGE_GROUP_SIZE
);
566 mem_ptr2
= ioremap(mem_base
+ THIRD_PAGE_GROUP_START
,
567 THIRD_PAGE_GROUP_SIZE
);
568 } else if (mem_len
== NETXEN_PCI_32MB_SIZE
) {
569 mem_ptr1
= ioremap(mem_base
, SECOND_PAGE_GROUP_SIZE
);
570 mem_ptr2
= ioremap(mem_base
+ THIRD_PAGE_GROUP_START
-
571 SECOND_PAGE_GROUP_START
, THIRD_PAGE_GROUP_SIZE
);
572 } else if (mem_len
== NETXEN_PCI_2MB_SIZE
) {
573 adapter
->hw_write_wx
= netxen_nic_hw_write_wx_2M
;
574 adapter
->hw_read_wx
= netxen_nic_hw_read_wx_2M
;
575 adapter
->pci_read_immediate
= netxen_nic_pci_read_immediate_2M
;
576 adapter
->pci_write_immediate
=
577 netxen_nic_pci_write_immediate_2M
;
578 adapter
->pci_read_normalize
= netxen_nic_pci_read_normalize_2M
;
579 adapter
->pci_write_normalize
=
580 netxen_nic_pci_write_normalize_2M
;
581 adapter
->pci_set_window
= netxen_nic_pci_set_window_2M
;
582 adapter
->pci_mem_read
= netxen_nic_pci_mem_read_2M
;
583 adapter
->pci_mem_write
= netxen_nic_pci_mem_write_2M
;
585 mem_ptr0
= pci_ioremap_bar(pdev
, 0);
586 if (mem_ptr0
== NULL
) {
587 dev_err(&pdev
->dev
, "failed to map PCI bar 0\n");
592 adapter
->ahw
.ddr_mn_window
= 0;
593 adapter
->ahw
.qdr_sn_window
= 0;
595 adapter
->ahw
.mn_win_crb
= 0x100000 + PCIX_MN_WINDOW
+
597 adapter
->ahw
.ms_win_crb
= 0x100000 + PCIX_SN_WINDOW
;
599 adapter
->ahw
.ms_win_crb
+= (pci_func
* 0x20);
601 adapter
->ahw
.ms_win_crb
+=
602 0xA0 + ((pci_func
- 4) * 0x10);
607 dev_info(&pdev
->dev
, "%dMB memory map\n", (int)(mem_len
>>20));
609 adapter
->ahw
.pci_base0
= mem_ptr0
;
610 adapter
->ahw
.pci_len0
= pci_len0
;
611 adapter
->ahw
.pci_base1
= mem_ptr1
;
612 adapter
->ahw
.pci_base2
= mem_ptr2
;
614 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
))
617 db_base
= pci_resource_start(pdev
, 4); /* doorbell is on bar 4 */
618 db_len
= pci_resource_len(pdev
, 4);
621 printk(KERN_ERR
"%s: doorbell is disabled\n",
622 netxen_nic_driver_name
);
627 db_ptr
= ioremap(db_base
, NETXEN_DB_MAPSIZE_BYTES
);
629 printk(KERN_ERR
"%s: Failed to allocate doorbell map.",
630 netxen_nic_driver_name
);
636 adapter
->ahw
.db_base
= db_ptr
;
637 adapter
->ahw
.db_len
= db_len
;
641 netxen_cleanup_pci_map(adapter
);
646 netxen_start_firmware(struct netxen_adapter
*adapter
)
648 int val
, err
, first_boot
;
649 struct pci_dev
*pdev
= adapter
->pdev
;
651 int first_driver
= 0;
652 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
)) {
653 if (adapter
->ahw
.pci_func
== 0)
656 if (adapter
->portnum
== 0)
663 first_boot
= adapter
->pci_read_normalize(adapter
,
664 NETXEN_CAM_RAM(0x1fc));
666 err
= netxen_check_hw_init(adapter
, first_boot
);
668 dev_err(&pdev
->dev
, "error in init HW init sequence\n");
672 if (first_boot
!= 0x55555555) {
673 adapter
->pci_write_normalize(adapter
,
674 CRB_CMDPEG_STATE
, 0);
675 netxen_pinit_from_rom(adapter
, 0);
679 netxen_nic_reg_write(adapter
, CRB_DMA_SHIFT
, 0x55555555);
680 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
))
681 netxen_set_port_mode(adapter
);
683 netxen_load_firmware(adapter
);
685 if (NX_IS_REVISION_P2(adapter
->ahw
.revision_id
)) {
687 /* Initialize multicast addr pool owners */
689 if (adapter
->ahw
.port_type
== NETXEN_NIC_XGBE
)
691 netxen_crb_writelit_adapter(adapter
,
692 NETXEN_MAC_ADDR_CNTL_REG
, val
);
696 err
= netxen_initialize_adapter_offload(adapter
);
701 * Tell the hardware our version number.
703 val
= (_NETXEN_NIC_LINUX_MAJOR
<< 16)
704 | ((_NETXEN_NIC_LINUX_MINOR
<< 8))
705 | (_NETXEN_NIC_LINUX_SUBVERSION
);
706 adapter
->pci_write_normalize(adapter
, CRB_DRIVER_VERSION
, val
);
708 /* Handshake with the card before we register the devices. */
709 err
= netxen_phantom_init(adapter
, NETXEN_NIC_PEG_TUNE
);
711 netxen_free_adapter_offload(adapter
);
719 netxen_nic_request_irq(struct netxen_adapter
*adapter
)
721 irq_handler_t handler
;
722 struct nx_host_sds_ring
*sds_ring
;
725 unsigned long flags
= IRQF_SAMPLE_RANDOM
;
726 struct net_device
*netdev
= adapter
->netdev
;
727 struct netxen_recv_context
*recv_ctx
= &adapter
->recv_ctx
;
729 if ((adapter
->msi_mode
!= MSI_MODE_MULTIFUNC
) ||
730 (adapter
->intr_scheme
!= INTR_SCHEME_PERPORT
)) {
731 printk(KERN_ERR
"%s: Firmware interrupt scheme is "
732 "incompatible with driver\n",
734 adapter
->driver_mismatch
= 1;
738 if (adapter
->flags
& NETXEN_NIC_MSIX_ENABLED
)
739 handler
= netxen_msix_intr
;
740 else if (adapter
->flags
& NETXEN_NIC_MSI_ENABLED
)
741 handler
= netxen_msi_intr
;
743 flags
|= IRQF_SHARED
;
744 handler
= netxen_intr
;
746 adapter
->irq
= netdev
->irq
;
748 for (ring
= 0; ring
< adapter
->max_sds_rings
; ring
++) {
749 sds_ring
= &recv_ctx
->sds_rings
[ring
];
750 sprintf(sds_ring
->name
, "%16s[%d]", netdev
->name
, ring
);
751 err
= request_irq(sds_ring
->irq
, handler
,
752 flags
, sds_ring
->name
, sds_ring
);
761 netxen_nic_free_irq(struct netxen_adapter
*adapter
)
764 struct nx_host_sds_ring
*sds_ring
;
766 struct netxen_recv_context
*recv_ctx
= &adapter
->recv_ctx
;
768 for (ring
= 0; ring
< adapter
->max_sds_rings
; ring
++) {
769 sds_ring
= &recv_ctx
->sds_rings
[ring
];
770 free_irq(sds_ring
->irq
, sds_ring
);
775 netxen_nic_up(struct netxen_adapter
*adapter
, struct net_device
*netdev
)
779 err
= adapter
->init_port(adapter
, adapter
->physical_port
);
781 printk(KERN_ERR
"%s: Failed to initialize port %d\n",
782 netxen_nic_driver_name
, adapter
->portnum
);
785 adapter
->macaddr_set(adapter
, netdev
->dev_addr
);
787 netxen_nic_set_link_parameters(adapter
);
789 netxen_set_multicast_list(netdev
);
790 if (adapter
->set_mtu
)
791 adapter
->set_mtu(adapter
, netdev
->mtu
);
793 adapter
->ahw
.linkup
= 0;
794 mod_timer(&adapter
->watchdog_timer
, jiffies
);
796 netxen_napi_enable(adapter
);
798 if (adapter
->max_sds_rings
> 1)
799 netxen_config_rss(adapter
, 1);
805 netxen_nic_down(struct netxen_adapter
*adapter
, struct net_device
*netdev
)
807 netif_carrier_off(netdev
);
808 netif_stop_queue(netdev
);
809 netxen_napi_disable(adapter
);
811 if (adapter
->stop_port
)
812 adapter
->stop_port(adapter
);
814 netxen_release_tx_buffers(adapter
);
816 FLUSH_SCHEDULED_WORK();
817 del_timer_sync(&adapter
->watchdog_timer
);
822 netxen_nic_attach(struct netxen_adapter
*adapter
)
824 struct net_device
*netdev
= adapter
->netdev
;
825 struct pci_dev
*pdev
= adapter
->pdev
;
827 struct nx_host_rds_ring
*rds_ring
;
829 err
= netxen_init_firmware(adapter
);
831 printk(KERN_ERR
"Failed to init firmware\n");
835 if (adapter
->fw_major
< 4)
836 adapter
->max_rds_rings
= 3;
838 adapter
->max_rds_rings
= 2;
840 err
= netxen_alloc_sw_resources(adapter
);
842 printk(KERN_ERR
"%s: Error in setting sw resources\n",
847 netxen_nic_clear_stats(adapter
);
849 err
= netxen_alloc_hw_resources(adapter
);
851 printk(KERN_ERR
"%s: Error in setting hw resources\n",
853 goto err_out_free_sw
;
856 if (adapter
->fw_major
< 4) {
857 adapter
->crb_addr_cmd_producer
=
858 crb_cmd_producer
[adapter
->portnum
];
859 adapter
->crb_addr_cmd_consumer
=
860 crb_cmd_consumer
[adapter
->portnum
];
862 netxen_nic_update_cmd_producer(adapter
, 0);
863 netxen_nic_update_cmd_consumer(adapter
, 0);
866 for (ring
= 0; ring
< adapter
->max_rds_rings
; ring
++) {
867 rds_ring
= &adapter
->recv_ctx
.rds_rings
[ring
];
868 netxen_post_rx_buffers(adapter
, ring
, rds_ring
);
871 err
= netxen_nic_request_irq(adapter
);
873 dev_err(&pdev
->dev
, "%s: failed to setup interrupt\n",
875 goto err_out_free_rxbuf
;
878 adapter
->is_up
= NETXEN_ADAPTER_UP_MAGIC
;
882 netxen_release_rx_buffers(adapter
);
883 netxen_free_hw_resources(adapter
);
885 netxen_free_sw_resources(adapter
);
890 netxen_nic_detach(struct netxen_adapter
*adapter
)
892 netxen_nic_free_irq(adapter
);
894 netxen_release_rx_buffers(adapter
);
895 netxen_free_hw_resources(adapter
);
896 netxen_free_sw_resources(adapter
);
902 netxen_nic_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
904 struct net_device
*netdev
= NULL
;
905 struct netxen_adapter
*adapter
= NULL
;
907 int pci_func_id
= PCI_FUNC(pdev
->devfn
);
910 if (pdev
->class != 0x020000) {
911 printk(KERN_DEBUG
"NetXen function %d, class %x will not "
912 "be enabled.\n",pci_func_id
, pdev
->class);
916 if (pdev
->revision
>= NX_P3_A0
&& pdev
->revision
< NX_P3_B1
) {
917 printk(KERN_WARNING
"NetXen chip revisions between 0x%x-0x%x"
918 "will not be enabled.\n",
923 if ((err
= pci_enable_device(pdev
)))
926 if (!(pci_resource_flags(pdev
, 0) & IORESOURCE_MEM
)) {
928 goto err_out_disable_pdev
;
931 if ((err
= pci_request_regions(pdev
, netxen_nic_driver_name
)))
932 goto err_out_disable_pdev
;
934 pci_set_master(pdev
);
936 netdev
= alloc_etherdev(sizeof(struct netxen_adapter
));
938 printk(KERN_ERR
"%s: Failed to allocate memory for the "
939 "device block.Check system memory resource"
940 " usage.\n", netxen_nic_driver_name
);
941 goto err_out_free_res
;
944 SET_NETDEV_DEV(netdev
, &pdev
->dev
);
946 adapter
= netdev_priv(netdev
);
947 adapter
->netdev
= netdev
;
948 adapter
->pdev
= pdev
;
949 adapter
->ahw
.pci_func
= pci_func_id
;
951 revision_id
= pdev
->revision
;
952 adapter
->ahw
.revision_id
= revision_id
;
954 err
= nx_set_dma_mask(adapter
, revision_id
);
956 goto err_out_free_netdev
;
958 rwlock_init(&adapter
->adapter_lock
);
959 spin_lock_init(&adapter
->tx_clean_lock
);
961 err
= netxen_setup_pci_map(adapter
);
963 goto err_out_free_netdev
;
965 /* This will be reset for mezz cards */
966 adapter
->portnum
= pci_func_id
;
967 adapter
->rx_csum
= 1;
968 adapter
->mc_enabled
= 0;
969 if (NX_IS_REVISION_P3(revision_id
))
970 adapter
->max_mc_count
= 38;
972 adapter
->max_mc_count
= 16;
974 netdev
->netdev_ops
= &netxen_netdev_ops
;
975 netdev
->watchdog_timeo
= 2*HZ
;
977 netxen_nic_change_mtu(netdev
, netdev
->mtu
);
979 SET_ETHTOOL_OPS(netdev
, &netxen_nic_ethtool_ops
);
981 netdev
->features
|= (NETIF_F_SG
| NETIF_F_IP_CSUM
| NETIF_F_TSO
);
982 netdev
->vlan_features
|= (NETIF_F_SG
| NETIF_F_IP_CSUM
| NETIF_F_TSO
);
984 if (NX_IS_REVISION_P3(revision_id
)) {
985 netdev
->features
|= (NETIF_F_IPV6_CSUM
| NETIF_F_TSO6
);
986 netdev
->vlan_features
|= (NETIF_F_IPV6_CSUM
| NETIF_F_TSO6
);
989 if (adapter
->pci_using_dac
) {
990 netdev
->features
|= NETIF_F_HIGHDMA
;
991 netdev
->vlan_features
|= NETIF_F_HIGHDMA
;
994 if (netxen_nic_get_board_info(adapter
) != 0) {
995 printk("%s: Error getting board config info.\n",
996 netxen_nic_driver_name
);
998 goto err_out_iounmap
;
1001 netxen_initialize_adapter_ops(adapter
);
1003 /* Mezz cards have PCI function 0,2,3 enabled */
1004 switch (adapter
->ahw
.board_type
) {
1005 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ
:
1006 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ
:
1007 if (pci_func_id
>= 2)
1008 adapter
->portnum
= pci_func_id
- 2;
1014 err
= netxen_start_firmware(adapter
);
1016 goto err_out_iounmap
;
1018 nx_update_dma_mask(adapter
);
1020 netxen_nic_get_firmware_info(adapter
);
1023 * See if the firmware gave us a virtual-physical port mapping.
1025 adapter
->physical_port
= adapter
->portnum
;
1026 if (adapter
->fw_major
< 4) {
1027 i
= adapter
->pci_read_normalize(adapter
,
1028 CRB_V2P(adapter
->portnum
));
1029 if (i
!= 0x55555555)
1030 adapter
->physical_port
= i
;
1033 netxen_check_options(adapter
);
1035 netxen_setup_intr(adapter
);
1037 netdev
->irq
= adapter
->msix_entries
[0].vector
;
1039 netxen_napi_add(adapter
, netdev
);
1041 err
= netxen_receive_peg_ready(adapter
);
1043 goto err_out_disable_msi
;
1045 init_timer(&adapter
->watchdog_timer
);
1046 adapter
->watchdog_timer
.function
= &netxen_watchdog
;
1047 adapter
->watchdog_timer
.data
= (unsigned long)adapter
;
1048 INIT_WORK(&adapter
->watchdog_task
, netxen_watchdog_task
);
1049 INIT_WORK(&adapter
->tx_timeout_task
, netxen_tx_timeout_task
);
1051 err
= netxen_read_mac_addr(adapter
);
1053 dev_warn(&pdev
->dev
, "failed to read mac addr\n");
1055 netif_carrier_off(netdev
);
1056 netif_stop_queue(netdev
);
1058 if ((err
= register_netdev(netdev
))) {
1059 printk(KERN_ERR
"%s: register_netdev failed port #%d"
1060 " aborting\n", netxen_nic_driver_name
,
1063 goto err_out_disable_msi
;
1066 pci_set_drvdata(pdev
, adapter
);
1068 switch (adapter
->ahw
.port_type
) {
1069 case NETXEN_NIC_GBE
:
1070 dev_info(&adapter
->pdev
->dev
, "%s: GbE port initialized\n",
1071 adapter
->netdev
->name
);
1073 case NETXEN_NIC_XGBE
:
1074 dev_info(&adapter
->pdev
->dev
, "%s: XGbE port initialized\n",
1075 adapter
->netdev
->name
);
1081 err_out_disable_msi
:
1082 netxen_teardown_intr(adapter
);
1084 netxen_free_adapter_offload(adapter
);
1087 netxen_cleanup_pci_map(adapter
);
1089 err_out_free_netdev
:
1090 free_netdev(netdev
);
1093 pci_release_regions(pdev
);
1095 err_out_disable_pdev
:
1096 pci_set_drvdata(pdev
, NULL
);
1097 pci_disable_device(pdev
);
1101 static void __devexit
netxen_nic_remove(struct pci_dev
*pdev
)
1103 struct netxen_adapter
*adapter
;
1104 struct net_device
*netdev
;
1106 adapter
= pci_get_drvdata(pdev
);
1107 if (adapter
== NULL
)
1110 netdev
= adapter
->netdev
;
1112 unregister_netdev(netdev
);
1114 if (adapter
->is_up
== NETXEN_ADAPTER_UP_MAGIC
) {
1115 netxen_nic_detach(adapter
);
1117 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
))
1118 netxen_p3_free_mac_list(adapter
);
1121 if (adapter
->portnum
== 0)
1122 netxen_free_adapter_offload(adapter
);
1124 netxen_teardown_intr(adapter
);
1126 netxen_cleanup_pci_map(adapter
);
1128 pci_release_regions(pdev
);
1129 pci_disable_device(pdev
);
1130 pci_set_drvdata(pdev
, NULL
);
1132 free_netdev(netdev
);
1136 netxen_nic_suspend(struct pci_dev
*pdev
, pm_message_t state
)
1139 struct netxen_adapter
*adapter
= pci_get_drvdata(pdev
);
1140 struct net_device
*netdev
= adapter
->netdev
;
1142 netif_device_detach(netdev
);
1144 if (netif_running(netdev
))
1145 netxen_nic_down(adapter
, netdev
);
1147 if (adapter
->is_up
== NETXEN_ADAPTER_UP_MAGIC
)
1148 netxen_nic_detach(adapter
);
1150 pci_save_state(pdev
);
1152 if (netxen_nic_wol_supported(adapter
)) {
1153 pci_enable_wake(pdev
, PCI_D3cold
, 1);
1154 pci_enable_wake(pdev
, PCI_D3hot
, 1);
1157 pci_disable_device(pdev
);
1158 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
1164 netxen_nic_resume(struct pci_dev
*pdev
)
1166 struct netxen_adapter
*adapter
= pci_get_drvdata(pdev
);
1167 struct net_device
*netdev
= adapter
->netdev
;
1170 pci_set_power_state(pdev
, PCI_D0
);
1171 pci_restore_state(pdev
);
1173 err
= pci_enable_device(pdev
);
1177 adapter
->curr_window
= 255;
1179 err
= netxen_start_firmware(adapter
);
1181 dev_err(&pdev
->dev
, "failed to start firmware\n");
1185 if (netif_running(netdev
)) {
1186 err
= netxen_nic_attach(adapter
);
1190 err
= netxen_nic_up(adapter
, netdev
);
1194 netif_device_attach(netdev
);
1200 static int netxen_nic_open(struct net_device
*netdev
)
1202 struct netxen_adapter
*adapter
= netdev_priv(netdev
);
1205 if (adapter
->driver_mismatch
)
1208 if (adapter
->is_up
!= NETXEN_ADAPTER_UP_MAGIC
) {
1209 err
= netxen_nic_attach(adapter
);
1214 err
= netxen_nic_up(adapter
, netdev
);
1218 netif_start_queue(netdev
);
1223 netxen_nic_detach(adapter
);
1228 * netxen_nic_close - Disables a network interface entry point
1230 static int netxen_nic_close(struct net_device
*netdev
)
1232 struct netxen_adapter
*adapter
= netdev_priv(netdev
);
1234 netxen_nic_down(adapter
, netdev
);
1238 static bool netxen_tso_check(struct net_device
*netdev
,
1239 struct cmd_desc_type0
*desc
, struct sk_buff
*skb
)
1242 u8 opcode
= TX_ETHER_PKT
;
1243 __be16 protocol
= skb
->protocol
;
1246 if (protocol
== cpu_to_be16(ETH_P_8021Q
)) {
1247 struct vlan_ethhdr
*vh
= (struct vlan_ethhdr
*)skb
->data
;
1248 protocol
= vh
->h_vlan_encapsulated_proto
;
1249 flags
= FLAGS_VLAN_TAGGED
;
1252 if ((netdev
->features
& (NETIF_F_TSO
| NETIF_F_TSO6
)) &&
1253 skb_shinfo(skb
)->gso_size
> 0) {
1255 desc
->mss
= cpu_to_le16(skb_shinfo(skb
)->gso_size
);
1256 desc
->total_hdr_length
=
1257 skb_transport_offset(skb
) + tcp_hdrlen(skb
);
1259 opcode
= (protocol
== cpu_to_be16(ETH_P_IPV6
)) ?
1260 TX_TCP_LSO6
: TX_TCP_LSO
;
1263 } else if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
1266 if (protocol
== cpu_to_be16(ETH_P_IP
)) {
1267 l4proto
= ip_hdr(skb
)->protocol
;
1269 if (l4proto
== IPPROTO_TCP
)
1270 opcode
= TX_TCP_PKT
;
1271 else if(l4proto
== IPPROTO_UDP
)
1272 opcode
= TX_UDP_PKT
;
1273 } else if (protocol
== cpu_to_be16(ETH_P_IPV6
)) {
1274 l4proto
= ipv6_hdr(skb
)->nexthdr
;
1276 if (l4proto
== IPPROTO_TCP
)
1277 opcode
= TX_TCPV6_PKT
;
1278 else if(l4proto
== IPPROTO_UDP
)
1279 opcode
= TX_UDPV6_PKT
;
1282 desc
->tcp_hdr_offset
= skb_transport_offset(skb
);
1283 desc
->ip_hdr_offset
= skb_network_offset(skb
);
1284 netxen_set_tx_flags_opcode(desc
, flags
, opcode
);
1289 netxen_clean_tx_dma_mapping(struct pci_dev
*pdev
,
1290 struct netxen_cmd_buffer
*pbuf
, int last
)
1293 struct netxen_skb_frag
*buffrag
;
1295 buffrag
= &pbuf
->frag_array
[0];
1296 pci_unmap_single(pdev
, buffrag
->dma
,
1297 buffrag
->length
, PCI_DMA_TODEVICE
);
1299 for (k
= 1; k
< last
; k
++) {
1300 buffrag
= &pbuf
->frag_array
[k
];
1301 pci_unmap_page(pdev
, buffrag
->dma
,
1302 buffrag
->length
, PCI_DMA_TODEVICE
);
1307 netxen_clear_cmddesc(u64
*desc
)
1310 for (i
= 0; i
< 8; i
++)
1315 netxen_nic_xmit_frame(struct sk_buff
*skb
, struct net_device
*netdev
)
1317 struct netxen_adapter
*adapter
= netdev_priv(netdev
);
1318 struct netxen_hardware_context
*hw
= &adapter
->ahw
;
1319 unsigned int first_seg_len
= skb
->len
- skb
->data_len
;
1320 struct netxen_cmd_buffer
*pbuf
;
1321 struct netxen_skb_frag
*buffrag
;
1322 struct cmd_desc_type0
*hwdesc
;
1323 struct pci_dev
*pdev
= adapter
->pdev
;
1324 dma_addr_t temp_dma
;
1327 u32 producer
, consumer
;
1328 int frag_count
, no_of_desc
;
1329 u32 num_txd
= adapter
->num_txd
;
1330 bool is_tso
= false;
1332 frag_count
= skb_shinfo(skb
)->nr_frags
+ 1;
1334 /* There 4 fragments per descriptor */
1335 no_of_desc
= (frag_count
+ 3) >> 2;
1337 producer
= adapter
->cmd_producer
;
1339 consumer
= adapter
->last_cmd_consumer
;
1340 if ((no_of_desc
+2) > find_diff_among(producer
, consumer
, num_txd
)) {
1341 netif_stop_queue(netdev
);
1343 return NETDEV_TX_BUSY
;
1346 /* Copy the descriptors into the hardware */
1347 hwdesc
= &hw
->cmd_desc_head
[producer
];
1348 netxen_clear_cmddesc((u64
*)hwdesc
);
1349 /* Take skb->data itself */
1350 pbuf
= &adapter
->cmd_buf_arr
[producer
];
1352 is_tso
= netxen_tso_check(netdev
, hwdesc
, skb
);
1355 pbuf
->frag_count
= frag_count
;
1356 buffrag
= &pbuf
->frag_array
[0];
1357 temp_dma
= pci_map_single(pdev
, skb
->data
, first_seg_len
,
1359 if (pci_dma_mapping_error(pdev
, temp_dma
))
1362 buffrag
->dma
= temp_dma
;
1363 buffrag
->length
= first_seg_len
;
1364 netxen_set_tx_frags_len(hwdesc
, frag_count
, skb
->len
);
1365 netxen_set_tx_port(hwdesc
, adapter
->portnum
);
1367 hwdesc
->buffer_length
[0] = cpu_to_le16(first_seg_len
);
1368 hwdesc
->addr_buffer1
= cpu_to_le64(buffrag
->dma
);
1370 for (i
= 1, k
= 1; i
< frag_count
; i
++, k
++) {
1371 struct skb_frag_struct
*frag
;
1373 unsigned long offset
;
1375 /* move to next desc. if there is a need */
1376 if ((i
& 0x3) == 0) {
1378 producer
= get_next_index(producer
, num_txd
);
1379 hwdesc
= &hw
->cmd_desc_head
[producer
];
1380 netxen_clear_cmddesc((u64
*)hwdesc
);
1381 pbuf
= &adapter
->cmd_buf_arr
[producer
];
1384 frag
= &skb_shinfo(skb
)->frags
[i
- 1];
1386 offset
= frag
->page_offset
;
1389 temp_dma
= pci_map_page(pdev
, frag
->page
, offset
,
1390 len
, PCI_DMA_TODEVICE
);
1391 if (pci_dma_mapping_error(pdev
, temp_dma
)) {
1392 netxen_clean_tx_dma_mapping(pdev
, pbuf
, i
);
1397 buffrag
->dma
= temp_dma
;
1398 buffrag
->length
= temp_len
;
1400 hwdesc
->buffer_length
[k
] = cpu_to_le16(temp_len
);
1403 hwdesc
->addr_buffer1
= cpu_to_le64(temp_dma
);
1406 hwdesc
->addr_buffer2
= cpu_to_le64(temp_dma
);
1409 hwdesc
->addr_buffer3
= cpu_to_le64(temp_dma
);
1412 hwdesc
->addr_buffer4
= cpu_to_le64(temp_dma
);
1417 producer
= get_next_index(producer
, num_txd
);
1419 /* For LSO, we need to copy the MAC/IP/TCP headers into
1420 * the descriptor ring
1423 int hdr_len
, first_hdr_len
, more_hdr
;
1424 hdr_len
= skb_transport_offset(skb
) + tcp_hdrlen(skb
);
1425 if (hdr_len
> (sizeof(struct cmd_desc_type0
) - 2)) {
1426 first_hdr_len
= sizeof(struct cmd_desc_type0
) - 2;
1429 first_hdr_len
= hdr_len
;
1432 /* copy the MAC/IP/TCP headers to the cmd descriptor list */
1433 hwdesc
= &hw
->cmd_desc_head
[producer
];
1434 pbuf
= &adapter
->cmd_buf_arr
[producer
];
1437 /* copy the first 64 bytes */
1438 memcpy(((void *)hwdesc
) + 2,
1439 (void *)(skb
->data
), first_hdr_len
);
1440 producer
= get_next_index(producer
, num_txd
);
1443 hwdesc
= &hw
->cmd_desc_head
[producer
];
1444 pbuf
= &adapter
->cmd_buf_arr
[producer
];
1446 /* copy the next 64 bytes - should be enough except
1447 * for pathological case
1449 skb_copy_from_linear_data_offset(skb
, first_hdr_len
,
1453 producer
= get_next_index(producer
, num_txd
);
1457 adapter
->cmd_producer
= producer
;
1458 adapter
->stats
.txbytes
+= skb
->len
;
1460 netxen_nic_update_cmd_producer(adapter
, adapter
->cmd_producer
);
1462 adapter
->stats
.xmitcalled
++;
1463 netdev
->trans_start
= jiffies
;
1465 return NETDEV_TX_OK
;
1468 adapter
->stats
.txdropped
++;
1469 dev_kfree_skb_any(skb
);
1470 return NETDEV_TX_OK
;
1473 static int netxen_nic_check_temp(struct netxen_adapter
*adapter
)
1475 struct net_device
*netdev
= adapter
->netdev
;
1476 uint32_t temp
, temp_state
, temp_val
;
1479 temp
= adapter
->pci_read_normalize(adapter
, CRB_TEMP_STATE
);
1481 temp_state
= nx_get_temp_state(temp
);
1482 temp_val
= nx_get_temp_val(temp
);
1484 if (temp_state
== NX_TEMP_PANIC
) {
1486 "%s: Device temperature %d degrees C exceeds"
1487 " maximum allowed. Hardware has been shut down.\n",
1488 netxen_nic_driver_name
, temp_val
);
1490 netif_carrier_off(netdev
);
1491 netif_stop_queue(netdev
);
1493 } else if (temp_state
== NX_TEMP_WARN
) {
1494 if (adapter
->temp
== NX_TEMP_NORMAL
) {
1496 "%s: Device temperature %d degrees C "
1497 "exceeds operating range."
1498 " Immediate action needed.\n",
1499 netxen_nic_driver_name
, temp_val
);
1502 if (adapter
->temp
== NX_TEMP_WARN
) {
1504 "%s: Device temperature is now %d degrees C"
1505 " in normal range.\n", netxen_nic_driver_name
,
1509 adapter
->temp
= temp_state
;
1513 static void netxen_nic_handle_phy_intr(struct netxen_adapter
*adapter
)
1515 struct net_device
*netdev
= adapter
->netdev
;
1516 u32 val
, port
, linkup
;
1518 port
= adapter
->physical_port
;
1520 if (NX_IS_REVISION_P3(adapter
->ahw
.revision_id
)) {
1521 val
= adapter
->pci_read_normalize(adapter
, CRB_XG_STATE_P3
);
1522 val
= XG_LINK_STATE_P3(adapter
->ahw
.pci_func
, val
);
1523 linkup
= (val
== XG_LINK_UP_P3
);
1525 val
= adapter
->pci_read_normalize(adapter
, CRB_XG_STATE
);
1526 if (adapter
->ahw
.port_type
== NETXEN_NIC_GBE
)
1527 linkup
= (val
>> port
) & 1;
1529 val
= (val
>> port
*8) & 0xff;
1530 linkup
= (val
== XG_LINK_UP
);
1534 if (adapter
->ahw
.linkup
&& !linkup
) {
1535 printk(KERN_INFO
"%s: %s NIC Link is down\n",
1536 netxen_nic_driver_name
, netdev
->name
);
1537 adapter
->ahw
.linkup
= 0;
1538 if (netif_running(netdev
)) {
1539 netif_carrier_off(netdev
);
1540 netif_stop_queue(netdev
);
1543 netxen_nic_set_link_parameters(adapter
);
1544 } else if (!adapter
->ahw
.linkup
&& linkup
) {
1545 printk(KERN_INFO
"%s: %s NIC Link is up\n",
1546 netxen_nic_driver_name
, netdev
->name
);
1547 adapter
->ahw
.linkup
= 1;
1548 if (netif_running(netdev
)) {
1549 netif_carrier_on(netdev
);
1550 netif_wake_queue(netdev
);
1553 netxen_nic_set_link_parameters(adapter
);
1557 static void netxen_watchdog(unsigned long v
)
1559 struct netxen_adapter
*adapter
= (struct netxen_adapter
*)v
;
1561 SCHEDULE_WORK(&adapter
->watchdog_task
);
1564 void netxen_watchdog_task(struct work_struct
*work
)
1566 struct netxen_adapter
*adapter
=
1567 container_of(work
, struct netxen_adapter
, watchdog_task
);
1569 if ((adapter
->portnum
== 0) && netxen_nic_check_temp(adapter
))
1572 netxen_nic_handle_phy_intr(adapter
);
1574 if (netif_running(adapter
->netdev
))
1575 mod_timer(&adapter
->watchdog_timer
, jiffies
+ 2 * HZ
);
1578 static void netxen_tx_timeout(struct net_device
*netdev
)
1580 struct netxen_adapter
*adapter
= (struct netxen_adapter
*)
1581 netdev_priv(netdev
);
1582 SCHEDULE_WORK(&adapter
->tx_timeout_task
);
1585 static void netxen_tx_timeout_task(struct work_struct
*work
)
1587 struct netxen_adapter
*adapter
=
1588 container_of(work
, struct netxen_adapter
, tx_timeout_task
);
1590 printk(KERN_ERR
"%s %s: transmit timeout, resetting.\n",
1591 netxen_nic_driver_name
, adapter
->netdev
->name
);
1593 netxen_napi_disable(adapter
);
1595 adapter
->netdev
->trans_start
= jiffies
;
1597 netxen_napi_enable(adapter
);
1598 netif_wake_queue(adapter
->netdev
);
1602 * netxen_nic_get_stats - Get System Network Statistics
1603 * @netdev: network interface device structure
1605 struct net_device_stats
*netxen_nic_get_stats(struct net_device
*netdev
)
1607 struct netxen_adapter
*adapter
= netdev_priv(netdev
);
1608 struct net_device_stats
*stats
= &adapter
->net_stats
;
1610 memset(stats
, 0, sizeof(*stats
));
1612 /* total packets received */
1613 stats
->rx_packets
= adapter
->stats
.no_rcv
;
1614 /* total packets transmitted */
1615 stats
->tx_packets
= adapter
->stats
.xmitedframes
+
1616 adapter
->stats
.xmitfinished
;
1617 /* total bytes received */
1618 stats
->rx_bytes
= adapter
->stats
.rxbytes
;
1619 /* total bytes transmitted */
1620 stats
->tx_bytes
= adapter
->stats
.txbytes
;
1621 /* bad packets received */
1622 stats
->rx_errors
= adapter
->stats
.rcvdbadskb
;
1623 /* packet transmit problems */
1624 stats
->tx_errors
= adapter
->stats
.nocmddescriptor
;
1625 /* no space in linux buffers */
1626 stats
->rx_dropped
= adapter
->stats
.rxdropped
;
1627 /* no space available in linux */
1628 stats
->tx_dropped
= adapter
->stats
.txdropped
;
1633 static irqreturn_t
netxen_intr(int irq
, void *data
)
1635 struct nx_host_sds_ring
*sds_ring
= data
;
1636 struct netxen_adapter
*adapter
= sds_ring
->adapter
;
1639 status
= adapter
->pci_read_immediate(adapter
, ISR_INT_VECTOR
);
1641 if (!(status
& adapter
->legacy_intr
.int_vec_bit
))
1644 if (adapter
->ahw
.revision_id
>= NX_P3_B1
) {
1645 /* check interrupt state machine, to be sure */
1646 status
= adapter
->pci_read_immediate(adapter
,
1648 if (!ISR_LEGACY_INT_TRIGGERED(status
))
1652 unsigned long our_int
= 0;
1654 our_int
= adapter
->pci_read_normalize(adapter
, CRB_INT_VECTOR
);
1656 /* not our interrupt */
1657 if (!test_and_clear_bit((7 + adapter
->portnum
), &our_int
))
1660 /* claim interrupt */
1661 adapter
->pci_write_normalize(adapter
,
1662 CRB_INT_VECTOR
, (our_int
& 0xffffffff));
1665 /* clear interrupt */
1666 if (adapter
->fw_major
< 4)
1667 netxen_nic_disable_int(sds_ring
);
1669 adapter
->pci_write_immediate(adapter
,
1670 adapter
->legacy_intr
.tgt_status_reg
,
1672 /* read twice to ensure write is flushed */
1673 adapter
->pci_read_immediate(adapter
, ISR_INT_VECTOR
);
1674 adapter
->pci_read_immediate(adapter
, ISR_INT_VECTOR
);
1676 napi_schedule(&sds_ring
->napi
);
1681 static irqreturn_t
netxen_msi_intr(int irq
, void *data
)
1683 struct nx_host_sds_ring
*sds_ring
= data
;
1684 struct netxen_adapter
*adapter
= sds_ring
->adapter
;
1686 /* clear interrupt */
1687 adapter
->pci_write_immediate(adapter
,
1688 msi_tgt_status
[adapter
->ahw
.pci_func
], 0xffffffff);
1690 napi_schedule(&sds_ring
->napi
);
1694 static irqreturn_t
netxen_msix_intr(int irq
, void *data
)
1696 struct nx_host_sds_ring
*sds_ring
= data
;
1698 napi_schedule(&sds_ring
->napi
);
1702 static int netxen_nic_poll(struct napi_struct
*napi
, int budget
)
1704 struct nx_host_sds_ring
*sds_ring
=
1705 container_of(napi
, struct nx_host_sds_ring
, napi
);
1707 struct netxen_adapter
*adapter
= sds_ring
->adapter
;
1712 tx_complete
= netxen_process_cmd_ring(adapter
);
1714 work_done
= netxen_process_rcv_ring(sds_ring
, budget
);
1716 if ((work_done
< budget
) && tx_complete
) {
1717 napi_complete(&sds_ring
->napi
);
1718 netxen_nic_enable_int(sds_ring
);
1724 #ifdef CONFIG_NET_POLL_CONTROLLER
1725 static void netxen_nic_poll_controller(struct net_device
*netdev
)
1727 struct netxen_adapter
*adapter
= netdev_priv(netdev
);
1728 disable_irq(adapter
->irq
);
1729 netxen_intr(adapter
->irq
, adapter
);
1730 enable_irq(adapter
->irq
);
1734 static struct pci_driver netxen_driver
= {
1735 .name
= netxen_nic_driver_name
,
1736 .id_table
= netxen_pci_tbl
,
1737 .probe
= netxen_nic_probe
,
1738 .remove
= __devexit_p(netxen_nic_remove
),
1739 .suspend
= netxen_nic_suspend
,
1740 .resume
= netxen_nic_resume
1743 /* Driver Registration on NetXen card */
1745 static int __init
netxen_init_module(void)
1747 printk(KERN_INFO
"%s\n", netxen_nic_driver_string
);
1749 if ((netxen_workq
= create_singlethread_workqueue("netxen")) == NULL
)
1752 return pci_register_driver(&netxen_driver
);
1755 module_init(netxen_init_module
);
1757 static void __exit
netxen_exit_module(void)
1759 pci_unregister_driver(&netxen_driver
);
1760 destroy_workqueue(netxen_workq
);
1763 module_exit(netxen_exit_module
);