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703da5a1 RV |
1 | /****************************************************************************** |
2 | * This software may be used and distributed according to the terms of | |
3 | * the GNU General Public License (GPL), incorporated herein by reference. | |
4 | * Drivers based on or derived from this code fall under the GPL and must | |
5 | * retain the authorship, copyright and license notice. This file is not | |
6 | * a complete program and may only be used when the entire operating | |
7 | * system is licensed under the GPL. | |
8 | * See the file COPYING in this distribution for more information. | |
9 | * | |
926bd900 | 10 | * vxge-main.c: Driver for Exar Corp's X3100 Series 10GbE PCIe I/O |
703da5a1 | 11 | * Virtualized Server Adapter. |
926bd900 | 12 | * Copyright(c) 2002-2010 Exar Corp. |
703da5a1 RV |
13 | * |
14 | * The module loadable parameters that are supported by the driver and a brief | |
15 | * explanation of all the variables: | |
16 | * vlan_tag_strip: | |
17 | * Strip VLAN Tag enable/disable. Instructs the device to remove | |
18 | * the VLAN tag from all received tagged frames that are not | |
19 | * replicated at the internal L2 switch. | |
20 | * 0 - Do not strip the VLAN tag. | |
21 | * 1 - Strip the VLAN tag. | |
22 | * | |
23 | * addr_learn_en: | |
24 | * Enable learning the mac address of the guest OS interface in | |
25 | * a virtualization environment. | |
26 | * 0 - DISABLE | |
27 | * 1 - ENABLE | |
28 | * | |
29 | * max_config_port: | |
30 | * Maximum number of port to be supported. | |
31 | * MIN -1 and MAX - 2 | |
32 | * | |
33 | * max_config_vpath: | |
34 | * This configures the maximum no of VPATH configures for each | |
35 | * device function. | |
36 | * MIN - 1 and MAX - 17 | |
37 | * | |
38 | * max_config_dev: | |
39 | * This configures maximum no of Device function to be enabled. | |
40 | * MIN - 1 and MAX - 17 | |
41 | * | |
42 | ******************************************************************************/ | |
43 | ||
75f5e1c6 JP |
44 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
45 | ||
703da5a1 RV |
46 | #include <linux/if_vlan.h> |
47 | #include <linux/pci.h> | |
5a0e3ad6 | 48 | #include <linux/slab.h> |
2b05e002 | 49 | #include <linux/tcp.h> |
703da5a1 RV |
50 | #include <net/ip.h> |
51 | #include <linux/netdevice.h> | |
52 | #include <linux/etherdevice.h> | |
e8ac1756 | 53 | #include <linux/firmware.h> |
b81b3733 | 54 | #include <linux/net_tstamp.h> |
703da5a1 RV |
55 | #include "vxge-main.h" |
56 | #include "vxge-reg.h" | |
57 | ||
58 | MODULE_LICENSE("Dual BSD/GPL"); | |
59 | MODULE_DESCRIPTION("Neterion's X3100 Series 10GbE PCIe I/O" | |
60 | "Virtualized Server Adapter"); | |
61 | ||
a3aa1884 | 62 | static DEFINE_PCI_DEVICE_TABLE(vxge_id_table) = { |
703da5a1 RV |
63 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_WIN, PCI_ANY_ID, |
64 | PCI_ANY_ID}, | |
65 | {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_UNI, PCI_ANY_ID, | |
66 | PCI_ANY_ID}, | |
67 | {0} | |
68 | }; | |
69 | ||
70 | MODULE_DEVICE_TABLE(pci, vxge_id_table); | |
71 | ||
72 | VXGE_MODULE_PARAM_INT(vlan_tag_strip, VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE); | |
73 | VXGE_MODULE_PARAM_INT(addr_learn_en, VXGE_HW_MAC_ADDR_LEARN_DEFAULT); | |
74 | VXGE_MODULE_PARAM_INT(max_config_port, VXGE_MAX_CONFIG_PORT); | |
75 | VXGE_MODULE_PARAM_INT(max_config_vpath, VXGE_USE_DEFAULT); | |
76 | VXGE_MODULE_PARAM_INT(max_mac_vpath, VXGE_MAX_MAC_ADDR_COUNT); | |
77 | VXGE_MODULE_PARAM_INT(max_config_dev, VXGE_MAX_CONFIG_DEV); | |
78 | ||
79 | static u16 vpath_selector[VXGE_HW_MAX_VIRTUAL_PATHS] = | |
80 | {0, 1, 3, 3, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, 31}; | |
81 | static unsigned int bw_percentage[VXGE_HW_MAX_VIRTUAL_PATHS] = | |
82 | {[0 ...(VXGE_HW_MAX_VIRTUAL_PATHS - 1)] = 0xFF}; | |
83 | module_param_array(bw_percentage, uint, NULL, 0); | |
84 | ||
85 | static struct vxge_drv_config *driver_config; | |
86 | ||
42821a5b | 87 | static enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev, |
88 | struct macInfo *mac); | |
89 | static enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev, | |
90 | struct macInfo *mac); | |
91 | static int vxge_mac_list_add(struct vxge_vpath *vpath, struct macInfo *mac); | |
92 | static int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac); | |
93 | static enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath); | |
94 | static enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath); | |
42821a5b | 95 | |
703da5a1 RV |
96 | static inline int is_vxge_card_up(struct vxgedev *vdev) |
97 | { | |
98 | return test_bit(__VXGE_STATE_CARD_UP, &vdev->state); | |
99 | } | |
100 | ||
101 | static inline void VXGE_COMPLETE_VPATH_TX(struct vxge_fifo *fifo) | |
102 | { | |
ff67df55 BL |
103 | struct sk_buff **skb_ptr = NULL; |
104 | struct sk_buff **temp; | |
105 | #define NR_SKB_COMPLETED 128 | |
106 | struct sk_buff *completed[NR_SKB_COMPLETED]; | |
107 | int more; | |
703da5a1 | 108 | |
ff67df55 BL |
109 | do { |
110 | more = 0; | |
111 | skb_ptr = completed; | |
112 | ||
98f45da2 | 113 | if (__netif_tx_trylock(fifo->txq)) { |
ff67df55 BL |
114 | vxge_hw_vpath_poll_tx(fifo->handle, &skb_ptr, |
115 | NR_SKB_COMPLETED, &more); | |
98f45da2 | 116 | __netif_tx_unlock(fifo->txq); |
ff67df55 | 117 | } |
98f45da2 | 118 | |
ff67df55 BL |
119 | /* free SKBs */ |
120 | for (temp = completed; temp != skb_ptr; temp++) | |
121 | dev_kfree_skb_irq(*temp); | |
98f45da2 | 122 | } while (more); |
703da5a1 RV |
123 | } |
124 | ||
125 | static inline void VXGE_COMPLETE_ALL_TX(struct vxgedev *vdev) | |
126 | { | |
127 | int i; | |
128 | ||
129 | /* Complete all transmits */ | |
130 | for (i = 0; i < vdev->no_of_vpath; i++) | |
131 | VXGE_COMPLETE_VPATH_TX(&vdev->vpaths[i].fifo); | |
132 | } | |
133 | ||
134 | static inline void VXGE_COMPLETE_ALL_RX(struct vxgedev *vdev) | |
135 | { | |
136 | int i; | |
137 | struct vxge_ring *ring; | |
138 | ||
139 | /* Complete all receives*/ | |
140 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
141 | ring = &vdev->vpaths[i].ring; | |
142 | vxge_hw_vpath_poll_rx(ring->handle); | |
143 | } | |
144 | } | |
145 | ||
703da5a1 RV |
146 | /* |
147 | * vxge_callback_link_up | |
148 | * | |
149 | * This function is called during interrupt context to notify link up state | |
150 | * change. | |
151 | */ | |
42821a5b | 152 | static void |
703da5a1 RV |
153 | vxge_callback_link_up(struct __vxge_hw_device *hldev) |
154 | { | |
155 | struct net_device *dev = hldev->ndev; | |
5f54cebb | 156 | struct vxgedev *vdev = netdev_priv(dev); |
703da5a1 RV |
157 | |
158 | vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", | |
159 | vdev->ndev->name, __func__, __LINE__); | |
75f5e1c6 | 160 | netdev_notice(vdev->ndev, "Link Up\n"); |
703da5a1 RV |
161 | vdev->stats.link_up++; |
162 | ||
163 | netif_carrier_on(vdev->ndev); | |
d03848e0 | 164 | netif_tx_wake_all_queues(vdev->ndev); |
703da5a1 RV |
165 | |
166 | vxge_debug_entryexit(VXGE_TRACE, | |
167 | "%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__); | |
168 | } | |
169 | ||
170 | /* | |
171 | * vxge_callback_link_down | |
172 | * | |
173 | * This function is called during interrupt context to notify link down state | |
174 | * change. | |
175 | */ | |
42821a5b | 176 | static void |
703da5a1 RV |
177 | vxge_callback_link_down(struct __vxge_hw_device *hldev) |
178 | { | |
179 | struct net_device *dev = hldev->ndev; | |
5f54cebb | 180 | struct vxgedev *vdev = netdev_priv(dev); |
703da5a1 RV |
181 | |
182 | vxge_debug_entryexit(VXGE_TRACE, | |
183 | "%s: %s:%d", vdev->ndev->name, __func__, __LINE__); | |
75f5e1c6 | 184 | netdev_notice(vdev->ndev, "Link Down\n"); |
703da5a1 RV |
185 | |
186 | vdev->stats.link_down++; | |
187 | netif_carrier_off(vdev->ndev); | |
d03848e0 | 188 | netif_tx_stop_all_queues(vdev->ndev); |
703da5a1 RV |
189 | |
190 | vxge_debug_entryexit(VXGE_TRACE, | |
191 | "%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__); | |
192 | } | |
193 | ||
194 | /* | |
195 | * vxge_rx_alloc | |
196 | * | |
197 | * Allocate SKB. | |
198 | */ | |
199 | static struct sk_buff* | |
200 | vxge_rx_alloc(void *dtrh, struct vxge_ring *ring, const int skb_size) | |
201 | { | |
202 | struct net_device *dev; | |
203 | struct sk_buff *skb; | |
204 | struct vxge_rx_priv *rx_priv; | |
205 | ||
206 | dev = ring->ndev; | |
207 | vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", | |
208 | ring->ndev->name, __func__, __LINE__); | |
209 | ||
210 | rx_priv = vxge_hw_ring_rxd_private_get(dtrh); | |
211 | ||
212 | /* try to allocate skb first. this one may fail */ | |
213 | skb = netdev_alloc_skb(dev, skb_size + | |
214 | VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN); | |
215 | if (skb == NULL) { | |
216 | vxge_debug_mem(VXGE_ERR, | |
217 | "%s: out of memory to allocate SKB", dev->name); | |
218 | ring->stats.skb_alloc_fail++; | |
219 | return NULL; | |
220 | } | |
221 | ||
222 | vxge_debug_mem(VXGE_TRACE, | |
223 | "%s: %s:%d Skb : 0x%p", ring->ndev->name, | |
224 | __func__, __LINE__, skb); | |
225 | ||
226 | skb_reserve(skb, VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN); | |
227 | ||
228 | rx_priv->skb = skb; | |
ea11bbe0 | 229 | rx_priv->skb_data = NULL; |
703da5a1 RV |
230 | rx_priv->data_size = skb_size; |
231 | vxge_debug_entryexit(VXGE_TRACE, | |
232 | "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__); | |
233 | ||
234 | return skb; | |
235 | } | |
236 | ||
237 | /* | |
238 | * vxge_rx_map | |
239 | */ | |
240 | static int vxge_rx_map(void *dtrh, struct vxge_ring *ring) | |
241 | { | |
242 | struct vxge_rx_priv *rx_priv; | |
243 | dma_addr_t dma_addr; | |
244 | ||
245 | vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", | |
246 | ring->ndev->name, __func__, __LINE__); | |
247 | rx_priv = vxge_hw_ring_rxd_private_get(dtrh); | |
248 | ||
ea11bbe0 BL |
249 | rx_priv->skb_data = rx_priv->skb->data; |
250 | dma_addr = pci_map_single(ring->pdev, rx_priv->skb_data, | |
703da5a1 RV |
251 | rx_priv->data_size, PCI_DMA_FROMDEVICE); |
252 | ||
fa15e99b | 253 | if (unlikely(pci_dma_mapping_error(ring->pdev, dma_addr))) { |
703da5a1 RV |
254 | ring->stats.pci_map_fail++; |
255 | return -EIO; | |
256 | } | |
257 | vxge_debug_mem(VXGE_TRACE, | |
258 | "%s: %s:%d 1 buffer mode dma_addr = 0x%llx", | |
259 | ring->ndev->name, __func__, __LINE__, | |
260 | (unsigned long long)dma_addr); | |
261 | vxge_hw_ring_rxd_1b_set(dtrh, dma_addr, rx_priv->data_size); | |
262 | ||
263 | rx_priv->data_dma = dma_addr; | |
264 | vxge_debug_entryexit(VXGE_TRACE, | |
265 | "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__); | |
266 | ||
267 | return 0; | |
268 | } | |
269 | ||
270 | /* | |
271 | * vxge_rx_initial_replenish | |
272 | * Allocation of RxD as an initial replenish procedure. | |
273 | */ | |
274 | static enum vxge_hw_status | |
275 | vxge_rx_initial_replenish(void *dtrh, void *userdata) | |
276 | { | |
277 | struct vxge_ring *ring = (struct vxge_ring *)userdata; | |
278 | struct vxge_rx_priv *rx_priv; | |
279 | ||
280 | vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", | |
281 | ring->ndev->name, __func__, __LINE__); | |
282 | if (vxge_rx_alloc(dtrh, ring, | |
283 | VXGE_LL_MAX_FRAME_SIZE(ring->ndev)) == NULL) | |
284 | return VXGE_HW_FAIL; | |
285 | ||
286 | if (vxge_rx_map(dtrh, ring)) { | |
287 | rx_priv = vxge_hw_ring_rxd_private_get(dtrh); | |
288 | dev_kfree_skb(rx_priv->skb); | |
289 | ||
290 | return VXGE_HW_FAIL; | |
291 | } | |
292 | vxge_debug_entryexit(VXGE_TRACE, | |
293 | "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__); | |
294 | ||
295 | return VXGE_HW_OK; | |
296 | } | |
297 | ||
298 | static inline void | |
299 | vxge_rx_complete(struct vxge_ring *ring, struct sk_buff *skb, u16 vlan, | |
300 | int pkt_length, struct vxge_hw_ring_rxd_info *ext_info) | |
301 | { | |
302 | ||
303 | vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", | |
304 | ring->ndev->name, __func__, __LINE__); | |
305 | skb_record_rx_queue(skb, ring->driver_id); | |
306 | skb->protocol = eth_type_trans(skb, ring->ndev); | |
307 | ||
308 | ring->stats.rx_frms++; | |
309 | ring->stats.rx_bytes += pkt_length; | |
310 | ||
311 | if (skb->pkt_type == PACKET_MULTICAST) | |
312 | ring->stats.rx_mcast++; | |
313 | ||
314 | vxge_debug_rx(VXGE_TRACE, | |
315 | "%s: %s:%d skb protocol = %d", | |
316 | ring->ndev->name, __func__, __LINE__, skb->protocol); | |
317 | ||
318 | if (ring->gro_enable) { | |
319 | if (ring->vlgrp && ext_info->vlan && | |
320 | (ring->vlan_tag_strip == | |
321 | VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE)) | |
a5d165b5 | 322 | vlan_gro_receive(ring->napi_p, ring->vlgrp, |
703da5a1 RV |
323 | ext_info->vlan, skb); |
324 | else | |
a5d165b5 | 325 | napi_gro_receive(ring->napi_p, skb); |
703da5a1 RV |
326 | } else { |
327 | if (ring->vlgrp && vlan && | |
328 | (ring->vlan_tag_strip == | |
329 | VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE)) | |
330 | vlan_hwaccel_receive_skb(skb, ring->vlgrp, vlan); | |
331 | else | |
332 | netif_receive_skb(skb); | |
333 | } | |
334 | vxge_debug_entryexit(VXGE_TRACE, | |
335 | "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__); | |
336 | } | |
337 | ||
338 | static inline void vxge_re_pre_post(void *dtr, struct vxge_ring *ring, | |
339 | struct vxge_rx_priv *rx_priv) | |
340 | { | |
341 | pci_dma_sync_single_for_device(ring->pdev, | |
342 | rx_priv->data_dma, rx_priv->data_size, PCI_DMA_FROMDEVICE); | |
343 | ||
344 | vxge_hw_ring_rxd_1b_set(dtr, rx_priv->data_dma, rx_priv->data_size); | |
345 | vxge_hw_ring_rxd_pre_post(ring->handle, dtr); | |
346 | } | |
347 | ||
348 | static inline void vxge_post(int *dtr_cnt, void **first_dtr, | |
349 | void *post_dtr, struct __vxge_hw_ring *ringh) | |
350 | { | |
351 | int dtr_count = *dtr_cnt; | |
352 | if ((*dtr_cnt % VXGE_HW_RXSYNC_FREQ_CNT) == 0) { | |
353 | if (*first_dtr) | |
354 | vxge_hw_ring_rxd_post_post_wmb(ringh, *first_dtr); | |
355 | *first_dtr = post_dtr; | |
356 | } else | |
357 | vxge_hw_ring_rxd_post_post(ringh, post_dtr); | |
358 | dtr_count++; | |
359 | *dtr_cnt = dtr_count; | |
360 | } | |
361 | ||
362 | /* | |
363 | * vxge_rx_1b_compl | |
364 | * | |
365 | * If the interrupt is because of a received frame or if the receive ring | |
366 | * contains fresh as yet un-processed frames, this function is called. | |
367 | */ | |
42821a5b | 368 | static enum vxge_hw_status |
703da5a1 RV |
369 | vxge_rx_1b_compl(struct __vxge_hw_ring *ringh, void *dtr, |
370 | u8 t_code, void *userdata) | |
371 | { | |
372 | struct vxge_ring *ring = (struct vxge_ring *)userdata; | |
b81b3733 | 373 | struct net_device *dev = ring->ndev; |
703da5a1 RV |
374 | unsigned int dma_sizes; |
375 | void *first_dtr = NULL; | |
376 | int dtr_cnt = 0; | |
377 | int data_size; | |
378 | dma_addr_t data_dma; | |
379 | int pkt_length; | |
380 | struct sk_buff *skb; | |
381 | struct vxge_rx_priv *rx_priv; | |
382 | struct vxge_hw_ring_rxd_info ext_info; | |
383 | vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", | |
384 | ring->ndev->name, __func__, __LINE__); | |
385 | ring->pkts_processed = 0; | |
386 | ||
3363276f | 387 | vxge_hw_ring_replenish(ringh); |
703da5a1 RV |
388 | |
389 | do { | |
3f23e436 | 390 | prefetch((char *)dtr + L1_CACHE_BYTES); |
703da5a1 RV |
391 | rx_priv = vxge_hw_ring_rxd_private_get(dtr); |
392 | skb = rx_priv->skb; | |
393 | data_size = rx_priv->data_size; | |
394 | data_dma = rx_priv->data_dma; | |
ea11bbe0 | 395 | prefetch(rx_priv->skb_data); |
703da5a1 RV |
396 | |
397 | vxge_debug_rx(VXGE_TRACE, | |
398 | "%s: %s:%d skb = 0x%p", | |
399 | ring->ndev->name, __func__, __LINE__, skb); | |
400 | ||
401 | vxge_hw_ring_rxd_1b_get(ringh, dtr, &dma_sizes); | |
402 | pkt_length = dma_sizes; | |
403 | ||
22fa125e SH |
404 | pkt_length -= ETH_FCS_LEN; |
405 | ||
703da5a1 RV |
406 | vxge_debug_rx(VXGE_TRACE, |
407 | "%s: %s:%d Packet Length = %d", | |
408 | ring->ndev->name, __func__, __LINE__, pkt_length); | |
409 | ||
410 | vxge_hw_ring_rxd_1b_info_get(ringh, dtr, &ext_info); | |
411 | ||
412 | /* check skb validity */ | |
413 | vxge_assert(skb); | |
414 | ||
415 | prefetch((char *)skb + L1_CACHE_BYTES); | |
416 | if (unlikely(t_code)) { | |
417 | ||
418 | if (vxge_hw_ring_handle_tcode(ringh, dtr, t_code) != | |
419 | VXGE_HW_OK) { | |
420 | ||
421 | ring->stats.rx_errors++; | |
422 | vxge_debug_rx(VXGE_TRACE, | |
423 | "%s: %s :%d Rx T_code is %d", | |
424 | ring->ndev->name, __func__, | |
425 | __LINE__, t_code); | |
426 | ||
427 | /* If the t_code is not supported and if the | |
428 | * t_code is other than 0x5 (unparseable packet | |
429 | * such as unknown UPV6 header), Drop it !!! | |
430 | */ | |
431 | vxge_re_pre_post(dtr, ring, rx_priv); | |
432 | ||
433 | vxge_post(&dtr_cnt, &first_dtr, dtr, ringh); | |
434 | ring->stats.rx_dropped++; | |
435 | continue; | |
436 | } | |
437 | } | |
438 | ||
439 | if (pkt_length > VXGE_LL_RX_COPY_THRESHOLD) { | |
440 | ||
441 | if (vxge_rx_alloc(dtr, ring, data_size) != NULL) { | |
442 | ||
443 | if (!vxge_rx_map(dtr, ring)) { | |
444 | skb_put(skb, pkt_length); | |
445 | ||
446 | pci_unmap_single(ring->pdev, data_dma, | |
447 | data_size, PCI_DMA_FROMDEVICE); | |
448 | ||
449 | vxge_hw_ring_rxd_pre_post(ringh, dtr); | |
450 | vxge_post(&dtr_cnt, &first_dtr, dtr, | |
451 | ringh); | |
452 | } else { | |
453 | dev_kfree_skb(rx_priv->skb); | |
454 | rx_priv->skb = skb; | |
455 | rx_priv->data_size = data_size; | |
456 | vxge_re_pre_post(dtr, ring, rx_priv); | |
457 | ||
458 | vxge_post(&dtr_cnt, &first_dtr, dtr, | |
459 | ringh); | |
460 | ring->stats.rx_dropped++; | |
461 | break; | |
462 | } | |
463 | } else { | |
464 | vxge_re_pre_post(dtr, ring, rx_priv); | |
465 | ||
466 | vxge_post(&dtr_cnt, &first_dtr, dtr, ringh); | |
467 | ring->stats.rx_dropped++; | |
468 | break; | |
469 | } | |
470 | } else { | |
471 | struct sk_buff *skb_up; | |
472 | ||
473 | skb_up = netdev_alloc_skb(dev, pkt_length + | |
474 | VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN); | |
475 | if (skb_up != NULL) { | |
476 | skb_reserve(skb_up, | |
477 | VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN); | |
478 | ||
479 | pci_dma_sync_single_for_cpu(ring->pdev, | |
480 | data_dma, data_size, | |
481 | PCI_DMA_FROMDEVICE); | |
482 | ||
483 | vxge_debug_mem(VXGE_TRACE, | |
484 | "%s: %s:%d skb_up = %p", | |
485 | ring->ndev->name, __func__, | |
486 | __LINE__, skb); | |
487 | memcpy(skb_up->data, skb->data, pkt_length); | |
488 | ||
489 | vxge_re_pre_post(dtr, ring, rx_priv); | |
490 | ||
491 | vxge_post(&dtr_cnt, &first_dtr, dtr, | |
492 | ringh); | |
493 | /* will netif_rx small SKB instead */ | |
494 | skb = skb_up; | |
495 | skb_put(skb, pkt_length); | |
496 | } else { | |
497 | vxge_re_pre_post(dtr, ring, rx_priv); | |
498 | ||
499 | vxge_post(&dtr_cnt, &first_dtr, dtr, ringh); | |
500 | vxge_debug_rx(VXGE_ERR, | |
501 | "%s: vxge_rx_1b_compl: out of " | |
502 | "memory", dev->name); | |
503 | ring->stats.skb_alloc_fail++; | |
504 | break; | |
505 | } | |
506 | } | |
507 | ||
508 | if ((ext_info.proto & VXGE_HW_FRAME_PROTO_TCP_OR_UDP) && | |
509 | !(ext_info.proto & VXGE_HW_FRAME_PROTO_IP_FRAG) && | |
510 | ring->rx_csum && /* Offload Rx side CSUM */ | |
511 | ext_info.l3_cksum == VXGE_HW_L3_CKSUM_OK && | |
512 | ext_info.l4_cksum == VXGE_HW_L4_CKSUM_OK) | |
513 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
514 | else | |
bc8acf2c | 515 | skb_checksum_none_assert(skb); |
703da5a1 | 516 | |
b81b3733 JM |
517 | |
518 | if (ring->rx_hwts) { | |
519 | struct skb_shared_hwtstamps *skb_hwts; | |
520 | u32 ns = *(u32 *)(skb->head + pkt_length); | |
521 | ||
522 | skb_hwts = skb_hwtstamps(skb); | |
523 | skb_hwts->hwtstamp = ns_to_ktime(ns); | |
524 | skb_hwts->syststamp.tv64 = 0; | |
525 | } | |
526 | ||
47f01db4 JM |
527 | /* rth_hash_type and rth_it_hit are non-zero regardless of |
528 | * whether rss is enabled. Only the rth_value is zero/non-zero | |
529 | * if rss is disabled/enabled, so key off of that. | |
530 | */ | |
531 | if (ext_info.rth_value) | |
532 | skb->rxhash = ext_info.rth_value; | |
533 | ||
703da5a1 RV |
534 | vxge_rx_complete(ring, skb, ext_info.vlan, |
535 | pkt_length, &ext_info); | |
536 | ||
537 | ring->budget--; | |
538 | ring->pkts_processed++; | |
539 | if (!ring->budget) | |
540 | break; | |
541 | ||
542 | } while (vxge_hw_ring_rxd_next_completed(ringh, &dtr, | |
543 | &t_code) == VXGE_HW_OK); | |
544 | ||
545 | if (first_dtr) | |
546 | vxge_hw_ring_rxd_post_post_wmb(ringh, first_dtr); | |
547 | ||
703da5a1 RV |
548 | vxge_debug_entryexit(VXGE_TRACE, |
549 | "%s:%d Exiting...", | |
550 | __func__, __LINE__); | |
551 | return VXGE_HW_OK; | |
552 | } | |
553 | ||
554 | /* | |
555 | * vxge_xmit_compl | |
556 | * | |
557 | * If an interrupt was raised to indicate DMA complete of the Tx packet, | |
558 | * this function is called. It identifies the last TxD whose buffer was | |
559 | * freed and frees all skbs whose data have already DMA'ed into the NICs | |
560 | * internal memory. | |
561 | */ | |
42821a5b | 562 | static enum vxge_hw_status |
703da5a1 RV |
563 | vxge_xmit_compl(struct __vxge_hw_fifo *fifo_hw, void *dtr, |
564 | enum vxge_hw_fifo_tcode t_code, void *userdata, | |
ff67df55 | 565 | struct sk_buff ***skb_ptr, int nr_skb, int *more) |
703da5a1 RV |
566 | { |
567 | struct vxge_fifo *fifo = (struct vxge_fifo *)userdata; | |
ff67df55 | 568 | struct sk_buff *skb, **done_skb = *skb_ptr; |
703da5a1 RV |
569 | int pkt_cnt = 0; |
570 | ||
571 | vxge_debug_entryexit(VXGE_TRACE, | |
572 | "%s:%d Entered....", __func__, __LINE__); | |
573 | ||
574 | do { | |
575 | int frg_cnt; | |
576 | skb_frag_t *frag; | |
577 | int i = 0, j; | |
578 | struct vxge_tx_priv *txd_priv = | |
579 | vxge_hw_fifo_txdl_private_get(dtr); | |
580 | ||
581 | skb = txd_priv->skb; | |
582 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
583 | frag = &skb_shinfo(skb)->frags[0]; | |
584 | ||
585 | vxge_debug_tx(VXGE_TRACE, | |
586 | "%s: %s:%d fifo_hw = %p dtr = %p " | |
587 | "tcode = 0x%x", fifo->ndev->name, __func__, | |
588 | __LINE__, fifo_hw, dtr, t_code); | |
589 | /* check skb validity */ | |
590 | vxge_assert(skb); | |
591 | vxge_debug_tx(VXGE_TRACE, | |
592 | "%s: %s:%d skb = %p itxd_priv = %p frg_cnt = %d", | |
593 | fifo->ndev->name, __func__, __LINE__, | |
594 | skb, txd_priv, frg_cnt); | |
595 | if (unlikely(t_code)) { | |
596 | fifo->stats.tx_errors++; | |
597 | vxge_debug_tx(VXGE_ERR, | |
598 | "%s: tx: dtr %p completed due to " | |
599 | "error t_code %01x", fifo->ndev->name, | |
600 | dtr, t_code); | |
601 | vxge_hw_fifo_handle_tcode(fifo_hw, dtr, t_code); | |
602 | } | |
603 | ||
604 | /* for unfragmented skb */ | |
605 | pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++], | |
606 | skb_headlen(skb), PCI_DMA_TODEVICE); | |
607 | ||
608 | for (j = 0; j < frg_cnt; j++) { | |
609 | pci_unmap_page(fifo->pdev, | |
610 | txd_priv->dma_buffers[i++], | |
611 | frag->size, PCI_DMA_TODEVICE); | |
612 | frag += 1; | |
613 | } | |
614 | ||
615 | vxge_hw_fifo_txdl_free(fifo_hw, dtr); | |
616 | ||
617 | /* Updating the statistics block */ | |
618 | fifo->stats.tx_frms++; | |
619 | fifo->stats.tx_bytes += skb->len; | |
620 | ||
ff67df55 BL |
621 | *done_skb++ = skb; |
622 | ||
623 | if (--nr_skb <= 0) { | |
624 | *more = 1; | |
625 | break; | |
626 | } | |
703da5a1 RV |
627 | |
628 | pkt_cnt++; | |
629 | if (pkt_cnt > fifo->indicate_max_pkts) | |
630 | break; | |
631 | ||
632 | } while (vxge_hw_fifo_txdl_next_completed(fifo_hw, | |
633 | &dtr, &t_code) == VXGE_HW_OK); | |
634 | ||
ff67df55 | 635 | *skb_ptr = done_skb; |
98f45da2 JM |
636 | if (netif_tx_queue_stopped(fifo->txq)) |
637 | netif_tx_wake_queue(fifo->txq); | |
703da5a1 | 638 | |
703da5a1 RV |
639 | vxge_debug_entryexit(VXGE_TRACE, |
640 | "%s: %s:%d Exiting...", | |
641 | fifo->ndev->name, __func__, __LINE__); | |
642 | return VXGE_HW_OK; | |
643 | } | |
644 | ||
28679751 | 645 | /* select a vpath to transmit the packet */ |
98f45da2 | 646 | static u32 vxge_get_vpath_no(struct vxgedev *vdev, struct sk_buff *skb) |
703da5a1 RV |
647 | { |
648 | u16 queue_len, counter = 0; | |
649 | if (skb->protocol == htons(ETH_P_IP)) { | |
650 | struct iphdr *ip; | |
651 | struct tcphdr *th; | |
652 | ||
653 | ip = ip_hdr(skb); | |
654 | ||
655 | if ((ip->frag_off & htons(IP_OFFSET|IP_MF)) == 0) { | |
656 | th = (struct tcphdr *)(((unsigned char *)ip) + | |
657 | ip->ihl*4); | |
658 | ||
659 | queue_len = vdev->no_of_vpath; | |
660 | counter = (ntohs(th->source) + | |
661 | ntohs(th->dest)) & | |
662 | vdev->vpath_selector[queue_len - 1]; | |
663 | if (counter >= queue_len) | |
664 | counter = queue_len - 1; | |
703da5a1 RV |
665 | } |
666 | } | |
667 | return counter; | |
668 | } | |
669 | ||
670 | static enum vxge_hw_status vxge_search_mac_addr_in_list( | |
671 | struct vxge_vpath *vpath, u64 del_mac) | |
672 | { | |
673 | struct list_head *entry, *next; | |
674 | list_for_each_safe(entry, next, &vpath->mac_addr_list) { | |
675 | if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac) | |
676 | return TRUE; | |
677 | } | |
678 | return FALSE; | |
679 | } | |
680 | ||
681 | static int vxge_learn_mac(struct vxgedev *vdev, u8 *mac_header) | |
682 | { | |
683 | struct macInfo mac_info; | |
684 | u8 *mac_address = NULL; | |
685 | u64 mac_addr = 0, vpath_vector = 0; | |
686 | int vpath_idx = 0; | |
687 | enum vxge_hw_status status = VXGE_HW_OK; | |
688 | struct vxge_vpath *vpath = NULL; | |
689 | struct __vxge_hw_device *hldev; | |
690 | ||
d8ee7071 | 691 | hldev = pci_get_drvdata(vdev->pdev); |
703da5a1 RV |
692 | |
693 | mac_address = (u8 *)&mac_addr; | |
694 | memcpy(mac_address, mac_header, ETH_ALEN); | |
695 | ||
696 | /* Is this mac address already in the list? */ | |
697 | for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) { | |
698 | vpath = &vdev->vpaths[vpath_idx]; | |
699 | if (vxge_search_mac_addr_in_list(vpath, mac_addr)) | |
700 | return vpath_idx; | |
701 | } | |
702 | ||
703 | memset(&mac_info, 0, sizeof(struct macInfo)); | |
704 | memcpy(mac_info.macaddr, mac_header, ETH_ALEN); | |
705 | ||
706 | /* Any vpath has room to add mac address to its da table? */ | |
707 | for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) { | |
708 | vpath = &vdev->vpaths[vpath_idx]; | |
709 | if (vpath->mac_addr_cnt < vpath->max_mac_addr_cnt) { | |
710 | /* Add this mac address to this vpath */ | |
711 | mac_info.vpath_no = vpath_idx; | |
712 | mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE; | |
713 | status = vxge_add_mac_addr(vdev, &mac_info); | |
714 | if (status != VXGE_HW_OK) | |
715 | return -EPERM; | |
716 | return vpath_idx; | |
717 | } | |
718 | } | |
719 | ||
720 | mac_info.state = VXGE_LL_MAC_ADDR_IN_LIST; | |
721 | vpath_idx = 0; | |
722 | mac_info.vpath_no = vpath_idx; | |
723 | /* Is the first vpath already selected as catch-basin ? */ | |
724 | vpath = &vdev->vpaths[vpath_idx]; | |
725 | if (vpath->mac_addr_cnt > vpath->max_mac_addr_cnt) { | |
726 | /* Add this mac address to this vpath */ | |
727 | if (FALSE == vxge_mac_list_add(vpath, &mac_info)) | |
728 | return -EPERM; | |
729 | return vpath_idx; | |
730 | } | |
731 | ||
732 | /* Select first vpath as catch-basin */ | |
733 | vpath_vector = vxge_mBIT(vpath->device_id); | |
734 | status = vxge_hw_mgmt_reg_write(vpath->vdev->devh, | |
735 | vxge_hw_mgmt_reg_type_mrpcim, | |
736 | 0, | |
737 | (ulong)offsetof( | |
738 | struct vxge_hw_mrpcim_reg, | |
739 | rts_mgr_cbasin_cfg), | |
740 | vpath_vector); | |
741 | if (status != VXGE_HW_OK) { | |
742 | vxge_debug_tx(VXGE_ERR, | |
743 | "%s: Unable to set the vpath-%d in catch-basin mode", | |
744 | VXGE_DRIVER_NAME, vpath->device_id); | |
745 | return -EPERM; | |
746 | } | |
747 | ||
748 | if (FALSE == vxge_mac_list_add(vpath, &mac_info)) | |
749 | return -EPERM; | |
750 | ||
751 | return vpath_idx; | |
752 | } | |
753 | ||
754 | /** | |
755 | * vxge_xmit | |
756 | * @skb : the socket buffer containing the Tx data. | |
757 | * @dev : device pointer. | |
758 | * | |
759 | * This function is the Tx entry point of the driver. Neterion NIC supports | |
760 | * certain protocol assist features on Tx side, namely CSO, S/G, LSO. | |
703da5a1 | 761 | */ |
61357325 | 762 | static netdev_tx_t |
703da5a1 RV |
763 | vxge_xmit(struct sk_buff *skb, struct net_device *dev) |
764 | { | |
765 | struct vxge_fifo *fifo = NULL; | |
766 | void *dtr_priv; | |
767 | void *dtr = NULL; | |
768 | struct vxgedev *vdev = NULL; | |
769 | enum vxge_hw_status status; | |
770 | int frg_cnt, first_frg_len; | |
771 | skb_frag_t *frag; | |
772 | int i = 0, j = 0, avail; | |
773 | u64 dma_pointer; | |
774 | struct vxge_tx_priv *txdl_priv = NULL; | |
775 | struct __vxge_hw_fifo *fifo_hw; | |
703da5a1 | 776 | int offload_type; |
703da5a1 | 777 | int vpath_no = 0; |
703da5a1 RV |
778 | |
779 | vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", | |
780 | dev->name, __func__, __LINE__); | |
781 | ||
782 | /* A buffer with no data will be dropped */ | |
783 | if (unlikely(skb->len <= 0)) { | |
784 | vxge_debug_tx(VXGE_ERR, | |
785 | "%s: Buffer has no data..", dev->name); | |
786 | dev_kfree_skb(skb); | |
787 | return NETDEV_TX_OK; | |
788 | } | |
789 | ||
5f54cebb | 790 | vdev = netdev_priv(dev); |
703da5a1 RV |
791 | |
792 | if (unlikely(!is_vxge_card_up(vdev))) { | |
793 | vxge_debug_tx(VXGE_ERR, | |
794 | "%s: vdev not initialized", dev->name); | |
795 | dev_kfree_skb(skb); | |
796 | return NETDEV_TX_OK; | |
797 | } | |
798 | ||
799 | if (vdev->config.addr_learn_en) { | |
800 | vpath_no = vxge_learn_mac(vdev, skb->data + ETH_ALEN); | |
801 | if (vpath_no == -EPERM) { | |
802 | vxge_debug_tx(VXGE_ERR, | |
803 | "%s: Failed to store the mac address", | |
804 | dev->name); | |
805 | dev_kfree_skb(skb); | |
806 | return NETDEV_TX_OK; | |
807 | } | |
808 | } | |
809 | ||
810 | if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING) | |
811 | vpath_no = skb_get_queue_mapping(skb); | |
812 | else if (vdev->config.tx_steering_type == TX_PORT_STEERING) | |
98f45da2 | 813 | vpath_no = vxge_get_vpath_no(vdev, skb); |
703da5a1 RV |
814 | |
815 | vxge_debug_tx(VXGE_TRACE, "%s: vpath_no= %d", dev->name, vpath_no); | |
816 | ||
817 | if (vpath_no >= vdev->no_of_vpath) | |
818 | vpath_no = 0; | |
819 | ||
820 | fifo = &vdev->vpaths[vpath_no].fifo; | |
821 | fifo_hw = fifo->handle; | |
822 | ||
98f45da2 | 823 | if (netif_tx_queue_stopped(fifo->txq)) |
d03848e0 | 824 | return NETDEV_TX_BUSY; |
d03848e0 | 825 | |
703da5a1 RV |
826 | avail = vxge_hw_fifo_free_txdl_count_get(fifo_hw); |
827 | if (avail == 0) { | |
828 | vxge_debug_tx(VXGE_ERR, | |
829 | "%s: No free TXDs available", dev->name); | |
830 | fifo->stats.txd_not_free++; | |
98f45da2 | 831 | goto _exit0; |
703da5a1 RV |
832 | } |
833 | ||
4403b371 BL |
834 | /* Last TXD? Stop tx queue to avoid dropping packets. TX |
835 | * completion will resume the queue. | |
836 | */ | |
837 | if (avail == 1) | |
98f45da2 | 838 | netif_tx_stop_queue(fifo->txq); |
4403b371 | 839 | |
703da5a1 RV |
840 | status = vxge_hw_fifo_txdl_reserve(fifo_hw, &dtr, &dtr_priv); |
841 | if (unlikely(status != VXGE_HW_OK)) { | |
842 | vxge_debug_tx(VXGE_ERR, | |
843 | "%s: Out of descriptors .", dev->name); | |
844 | fifo->stats.txd_out_of_desc++; | |
98f45da2 | 845 | goto _exit0; |
703da5a1 RV |
846 | } |
847 | ||
848 | vxge_debug_tx(VXGE_TRACE, | |
849 | "%s: %s:%d fifo_hw = %p dtr = %p dtr_priv = %p", | |
850 | dev->name, __func__, __LINE__, | |
851 | fifo_hw, dtr, dtr_priv); | |
852 | ||
eab6d18d | 853 | if (vlan_tx_tag_present(skb)) { |
703da5a1 RV |
854 | u16 vlan_tag = vlan_tx_tag_get(skb); |
855 | vxge_hw_fifo_txdl_vlan_set(dtr, vlan_tag); | |
856 | } | |
857 | ||
858 | first_frg_len = skb_headlen(skb); | |
859 | ||
860 | dma_pointer = pci_map_single(fifo->pdev, skb->data, first_frg_len, | |
861 | PCI_DMA_TODEVICE); | |
862 | ||
863 | if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer))) { | |
864 | vxge_hw_fifo_txdl_free(fifo_hw, dtr); | |
703da5a1 | 865 | fifo->stats.pci_map_fail++; |
98f45da2 | 866 | goto _exit0; |
703da5a1 RV |
867 | } |
868 | ||
869 | txdl_priv = vxge_hw_fifo_txdl_private_get(dtr); | |
870 | txdl_priv->skb = skb; | |
871 | txdl_priv->dma_buffers[j] = dma_pointer; | |
872 | ||
873 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
874 | vxge_debug_tx(VXGE_TRACE, | |
875 | "%s: %s:%d skb = %p txdl_priv = %p " | |
876 | "frag_cnt = %d dma_pointer = 0x%llx", dev->name, | |
877 | __func__, __LINE__, skb, txdl_priv, | |
878 | frg_cnt, (unsigned long long)dma_pointer); | |
879 | ||
880 | vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer, | |
881 | first_frg_len); | |
882 | ||
883 | frag = &skb_shinfo(skb)->frags[0]; | |
884 | for (i = 0; i < frg_cnt; i++) { | |
885 | /* ignore 0 length fragment */ | |
886 | if (!frag->size) | |
887 | continue; | |
888 | ||
98f45da2 | 889 | dma_pointer = (u64) pci_map_page(fifo->pdev, frag->page, |
703da5a1 RV |
890 | frag->page_offset, frag->size, |
891 | PCI_DMA_TODEVICE); | |
892 | ||
893 | if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer))) | |
98f45da2 | 894 | goto _exit2; |
703da5a1 RV |
895 | vxge_debug_tx(VXGE_TRACE, |
896 | "%s: %s:%d frag = %d dma_pointer = 0x%llx", | |
897 | dev->name, __func__, __LINE__, i, | |
898 | (unsigned long long)dma_pointer); | |
899 | ||
900 | txdl_priv->dma_buffers[j] = dma_pointer; | |
901 | vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer, | |
902 | frag->size); | |
903 | frag += 1; | |
904 | } | |
905 | ||
906 | offload_type = vxge_offload_type(skb); | |
907 | ||
908 | if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { | |
703da5a1 RV |
909 | int mss = vxge_tcp_mss(skb); |
910 | if (mss) { | |
98f45da2 | 911 | vxge_debug_tx(VXGE_TRACE, "%s: %s:%d mss = %d", |
703da5a1 RV |
912 | dev->name, __func__, __LINE__, mss); |
913 | vxge_hw_fifo_txdl_mss_set(dtr, mss); | |
914 | } else { | |
915 | vxge_assert(skb->len <= | |
916 | dev->mtu + VXGE_HW_MAC_HEADER_MAX_SIZE); | |
917 | vxge_assert(0); | |
918 | goto _exit1; | |
919 | } | |
920 | } | |
921 | ||
922 | if (skb->ip_summed == CHECKSUM_PARTIAL) | |
923 | vxge_hw_fifo_txdl_cksum_set_bits(dtr, | |
924 | VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN | | |
925 | VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN | | |
926 | VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN); | |
927 | ||
928 | vxge_hw_fifo_txdl_post(fifo_hw, dtr); | |
703da5a1 | 929 | |
703da5a1 RV |
930 | vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...", |
931 | dev->name, __func__, __LINE__); | |
6ed10654 | 932 | return NETDEV_TX_OK; |
703da5a1 | 933 | |
98f45da2 | 934 | _exit2: |
703da5a1 | 935 | vxge_debug_tx(VXGE_TRACE, "%s: pci_map_page failed", dev->name); |
703da5a1 RV |
936 | _exit1: |
937 | j = 0; | |
938 | frag = &skb_shinfo(skb)->frags[0]; | |
939 | ||
940 | pci_unmap_single(fifo->pdev, txdl_priv->dma_buffers[j++], | |
941 | skb_headlen(skb), PCI_DMA_TODEVICE); | |
942 | ||
943 | for (; j < i; j++) { | |
944 | pci_unmap_page(fifo->pdev, txdl_priv->dma_buffers[j], | |
945 | frag->size, PCI_DMA_TODEVICE); | |
946 | frag += 1; | |
947 | } | |
948 | ||
949 | vxge_hw_fifo_txdl_free(fifo_hw, dtr); | |
98f45da2 JM |
950 | _exit0: |
951 | netif_tx_stop_queue(fifo->txq); | |
703da5a1 | 952 | dev_kfree_skb(skb); |
703da5a1 | 953 | |
6ed10654 | 954 | return NETDEV_TX_OK; |
703da5a1 RV |
955 | } |
956 | ||
957 | /* | |
958 | * vxge_rx_term | |
959 | * | |
960 | * Function will be called by hw function to abort all outstanding receive | |
961 | * descriptors. | |
962 | */ | |
963 | static void | |
964 | vxge_rx_term(void *dtrh, enum vxge_hw_rxd_state state, void *userdata) | |
965 | { | |
966 | struct vxge_ring *ring = (struct vxge_ring *)userdata; | |
967 | struct vxge_rx_priv *rx_priv = | |
968 | vxge_hw_ring_rxd_private_get(dtrh); | |
969 | ||
970 | vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", | |
971 | ring->ndev->name, __func__, __LINE__); | |
972 | if (state != VXGE_HW_RXD_STATE_POSTED) | |
973 | return; | |
974 | ||
975 | pci_unmap_single(ring->pdev, rx_priv->data_dma, | |
976 | rx_priv->data_size, PCI_DMA_FROMDEVICE); | |
977 | ||
978 | dev_kfree_skb(rx_priv->skb); | |
ea11bbe0 | 979 | rx_priv->skb_data = NULL; |
703da5a1 RV |
980 | |
981 | vxge_debug_entryexit(VXGE_TRACE, | |
982 | "%s: %s:%d Exiting...", | |
983 | ring->ndev->name, __func__, __LINE__); | |
984 | } | |
985 | ||
986 | /* | |
987 | * vxge_tx_term | |
988 | * | |
989 | * Function will be called to abort all outstanding tx descriptors | |
990 | */ | |
991 | static void | |
992 | vxge_tx_term(void *dtrh, enum vxge_hw_txdl_state state, void *userdata) | |
993 | { | |
994 | struct vxge_fifo *fifo = (struct vxge_fifo *)userdata; | |
995 | skb_frag_t *frag; | |
996 | int i = 0, j, frg_cnt; | |
997 | struct vxge_tx_priv *txd_priv = vxge_hw_fifo_txdl_private_get(dtrh); | |
998 | struct sk_buff *skb = txd_priv->skb; | |
999 | ||
1000 | vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); | |
1001 | ||
1002 | if (state != VXGE_HW_TXDL_STATE_POSTED) | |
1003 | return; | |
1004 | ||
1005 | /* check skb validity */ | |
1006 | vxge_assert(skb); | |
1007 | frg_cnt = skb_shinfo(skb)->nr_frags; | |
1008 | frag = &skb_shinfo(skb)->frags[0]; | |
1009 | ||
1010 | /* for unfragmented skb */ | |
1011 | pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++], | |
1012 | skb_headlen(skb), PCI_DMA_TODEVICE); | |
1013 | ||
1014 | for (j = 0; j < frg_cnt; j++) { | |
1015 | pci_unmap_page(fifo->pdev, txd_priv->dma_buffers[i++], | |
1016 | frag->size, PCI_DMA_TODEVICE); | |
1017 | frag += 1; | |
1018 | } | |
1019 | ||
1020 | dev_kfree_skb(skb); | |
1021 | ||
1022 | vxge_debug_entryexit(VXGE_TRACE, | |
1023 | "%s:%d Exiting...", __func__, __LINE__); | |
1024 | } | |
1025 | ||
1026 | /** | |
1027 | * vxge_set_multicast | |
1028 | * @dev: pointer to the device structure | |
1029 | * | |
1030 | * Entry point for multicast address enable/disable | |
1031 | * This function is a driver entry point which gets called by the kernel | |
1032 | * whenever multicast addresses must be enabled/disabled. This also gets | |
1033 | * called to set/reset promiscuous mode. Depending on the deivce flag, we | |
1034 | * determine, if multicast address must be enabled or if promiscuous mode | |
1035 | * is to be disabled etc. | |
1036 | */ | |
1037 | static void vxge_set_multicast(struct net_device *dev) | |
1038 | { | |
22bedad3 | 1039 | struct netdev_hw_addr *ha; |
703da5a1 RV |
1040 | struct vxgedev *vdev; |
1041 | int i, mcast_cnt = 0; | |
7adf7d1b JM |
1042 | struct __vxge_hw_device *hldev; |
1043 | struct vxge_vpath *vpath; | |
703da5a1 RV |
1044 | enum vxge_hw_status status = VXGE_HW_OK; |
1045 | struct macInfo mac_info; | |
1046 | int vpath_idx = 0; | |
1047 | struct vxge_mac_addrs *mac_entry; | |
1048 | struct list_head *list_head; | |
1049 | struct list_head *entry, *next; | |
1050 | u8 *mac_address = NULL; | |
1051 | ||
1052 | vxge_debug_entryexit(VXGE_TRACE, | |
1053 | "%s:%d", __func__, __LINE__); | |
1054 | ||
5f54cebb | 1055 | vdev = netdev_priv(dev); |
703da5a1 RV |
1056 | hldev = (struct __vxge_hw_device *)vdev->devh; |
1057 | ||
1058 | if (unlikely(!is_vxge_card_up(vdev))) | |
1059 | return; | |
1060 | ||
1061 | if ((dev->flags & IFF_ALLMULTI) && (!vdev->all_multi_flg)) { | |
1062 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
7adf7d1b JM |
1063 | vpath = &vdev->vpaths[i]; |
1064 | vxge_assert(vpath->is_open); | |
1065 | status = vxge_hw_vpath_mcast_enable(vpath->handle); | |
1066 | if (status != VXGE_HW_OK) | |
1067 | vxge_debug_init(VXGE_ERR, "failed to enable " | |
1068 | "multicast, status %d", status); | |
703da5a1 RV |
1069 | vdev->all_multi_flg = 1; |
1070 | } | |
7adf7d1b | 1071 | } else if (!(dev->flags & IFF_ALLMULTI) && (vdev->all_multi_flg)) { |
703da5a1 | 1072 | for (i = 0; i < vdev->no_of_vpath; i++) { |
7adf7d1b JM |
1073 | vpath = &vdev->vpaths[i]; |
1074 | vxge_assert(vpath->is_open); | |
1075 | status = vxge_hw_vpath_mcast_disable(vpath->handle); | |
1076 | if (status != VXGE_HW_OK) | |
1077 | vxge_debug_init(VXGE_ERR, "failed to disable " | |
1078 | "multicast, status %d", status); | |
1079 | vdev->all_multi_flg = 0; | |
703da5a1 RV |
1080 | } |
1081 | } | |
1082 | ||
703da5a1 RV |
1083 | |
1084 | if (!vdev->config.addr_learn_en) { | |
7adf7d1b JM |
1085 | for (i = 0; i < vdev->no_of_vpath; i++) { |
1086 | vpath = &vdev->vpaths[i]; | |
1087 | vxge_assert(vpath->is_open); | |
1088 | ||
1089 | if (dev->flags & IFF_PROMISC) | |
703da5a1 | 1090 | status = vxge_hw_vpath_promisc_enable( |
7adf7d1b JM |
1091 | vpath->handle); |
1092 | else | |
703da5a1 | 1093 | status = vxge_hw_vpath_promisc_disable( |
7adf7d1b JM |
1094 | vpath->handle); |
1095 | if (status != VXGE_HW_OK) | |
1096 | vxge_debug_init(VXGE_ERR, "failed to %s promisc" | |
1097 | ", status %d", dev->flags&IFF_PROMISC ? | |
1098 | "enable" : "disable", status); | |
703da5a1 RV |
1099 | } |
1100 | } | |
1101 | ||
1102 | memset(&mac_info, 0, sizeof(struct macInfo)); | |
1103 | /* Update individual M_CAST address list */ | |
4cd24eaf | 1104 | if ((!vdev->all_multi_flg) && netdev_mc_count(dev)) { |
703da5a1 RV |
1105 | mcast_cnt = vdev->vpaths[0].mcast_addr_cnt; |
1106 | list_head = &vdev->vpaths[0].mac_addr_list; | |
4cd24eaf | 1107 | if ((netdev_mc_count(dev) + |
703da5a1 RV |
1108 | (vdev->vpaths[0].mac_addr_cnt - mcast_cnt)) > |
1109 | vdev->vpaths[0].max_mac_addr_cnt) | |
1110 | goto _set_all_mcast; | |
1111 | ||
1112 | /* Delete previous MC's */ | |
1113 | for (i = 0; i < mcast_cnt; i++) { | |
703da5a1 | 1114 | list_for_each_safe(entry, next, list_head) { |
2c91308f | 1115 | mac_entry = (struct vxge_mac_addrs *)entry; |
703da5a1 RV |
1116 | /* Copy the mac address to delete */ |
1117 | mac_address = (u8 *)&mac_entry->macaddr; | |
1118 | memcpy(mac_info.macaddr, mac_address, ETH_ALEN); | |
1119 | ||
1120 | /* Is this a multicast address */ | |
1121 | if (0x01 & mac_info.macaddr[0]) { | |
1122 | for (vpath_idx = 0; vpath_idx < | |
1123 | vdev->no_of_vpath; | |
1124 | vpath_idx++) { | |
1125 | mac_info.vpath_no = vpath_idx; | |
1126 | status = vxge_del_mac_addr( | |
1127 | vdev, | |
1128 | &mac_info); | |
1129 | } | |
1130 | } | |
1131 | } | |
1132 | } | |
1133 | ||
1134 | /* Add new ones */ | |
22bedad3 JP |
1135 | netdev_for_each_mc_addr(ha, dev) { |
1136 | memcpy(mac_info.macaddr, ha->addr, ETH_ALEN); | |
703da5a1 RV |
1137 | for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; |
1138 | vpath_idx++) { | |
1139 | mac_info.vpath_no = vpath_idx; | |
1140 | mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE; | |
1141 | status = vxge_add_mac_addr(vdev, &mac_info); | |
1142 | if (status != VXGE_HW_OK) { | |
1143 | vxge_debug_init(VXGE_ERR, | |
1144 | "%s:%d Setting individual" | |
1145 | "multicast address failed", | |
1146 | __func__, __LINE__); | |
1147 | goto _set_all_mcast; | |
1148 | } | |
1149 | } | |
1150 | } | |
1151 | ||
1152 | return; | |
1153 | _set_all_mcast: | |
1154 | mcast_cnt = vdev->vpaths[0].mcast_addr_cnt; | |
1155 | /* Delete previous MC's */ | |
1156 | for (i = 0; i < mcast_cnt; i++) { | |
703da5a1 | 1157 | list_for_each_safe(entry, next, list_head) { |
2c91308f | 1158 | mac_entry = (struct vxge_mac_addrs *)entry; |
703da5a1 RV |
1159 | /* Copy the mac address to delete */ |
1160 | mac_address = (u8 *)&mac_entry->macaddr; | |
1161 | memcpy(mac_info.macaddr, mac_address, ETH_ALEN); | |
1162 | ||
1163 | /* Is this a multicast address */ | |
1164 | if (0x01 & mac_info.macaddr[0]) | |
1165 | break; | |
1166 | } | |
1167 | ||
1168 | for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; | |
1169 | vpath_idx++) { | |
1170 | mac_info.vpath_no = vpath_idx; | |
1171 | status = vxge_del_mac_addr(vdev, &mac_info); | |
1172 | } | |
1173 | } | |
1174 | ||
1175 | /* Enable all multicast */ | |
1176 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
7adf7d1b JM |
1177 | vpath = &vdev->vpaths[i]; |
1178 | vxge_assert(vpath->is_open); | |
1179 | ||
1180 | status = vxge_hw_vpath_mcast_enable(vpath->handle); | |
703da5a1 RV |
1181 | if (status != VXGE_HW_OK) { |
1182 | vxge_debug_init(VXGE_ERR, | |
1183 | "%s:%d Enabling all multicasts failed", | |
1184 | __func__, __LINE__); | |
1185 | } | |
1186 | vdev->all_multi_flg = 1; | |
1187 | } | |
1188 | dev->flags |= IFF_ALLMULTI; | |
1189 | } | |
1190 | ||
1191 | vxge_debug_entryexit(VXGE_TRACE, | |
1192 | "%s:%d Exiting...", __func__, __LINE__); | |
1193 | } | |
1194 | ||
1195 | /** | |
1196 | * vxge_set_mac_addr | |
1197 | * @dev: pointer to the device structure | |
1198 | * | |
1199 | * Update entry "0" (default MAC addr) | |
1200 | */ | |
1201 | static int vxge_set_mac_addr(struct net_device *dev, void *p) | |
1202 | { | |
1203 | struct sockaddr *addr = p; | |
1204 | struct vxgedev *vdev; | |
2c91308f | 1205 | struct __vxge_hw_device *hldev; |
703da5a1 RV |
1206 | enum vxge_hw_status status = VXGE_HW_OK; |
1207 | struct macInfo mac_info_new, mac_info_old; | |
1208 | int vpath_idx = 0; | |
1209 | ||
1210 | vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); | |
1211 | ||
5f54cebb | 1212 | vdev = netdev_priv(dev); |
703da5a1 RV |
1213 | hldev = vdev->devh; |
1214 | ||
1215 | if (!is_valid_ether_addr(addr->sa_data)) | |
1216 | return -EINVAL; | |
1217 | ||
1218 | memset(&mac_info_new, 0, sizeof(struct macInfo)); | |
1219 | memset(&mac_info_old, 0, sizeof(struct macInfo)); | |
1220 | ||
1221 | vxge_debug_entryexit(VXGE_TRACE, "%s:%d Exiting...", | |
1222 | __func__, __LINE__); | |
1223 | ||
1224 | /* Get the old address */ | |
1225 | memcpy(mac_info_old.macaddr, dev->dev_addr, dev->addr_len); | |
1226 | ||
1227 | /* Copy the new address */ | |
1228 | memcpy(mac_info_new.macaddr, addr->sa_data, dev->addr_len); | |
1229 | ||
1230 | /* First delete the old mac address from all the vpaths | |
1231 | as we can't specify the index while adding new mac address */ | |
1232 | for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) { | |
1233 | struct vxge_vpath *vpath = &vdev->vpaths[vpath_idx]; | |
1234 | if (!vpath->is_open) { | |
1235 | /* This can happen when this interface is added/removed | |
1236 | to the bonding interface. Delete this station address | |
1237 | from the linked list */ | |
1238 | vxge_mac_list_del(vpath, &mac_info_old); | |
1239 | ||
1240 | /* Add this new address to the linked list | |
1241 | for later restoring */ | |
1242 | vxge_mac_list_add(vpath, &mac_info_new); | |
1243 | ||
1244 | continue; | |
1245 | } | |
1246 | /* Delete the station address */ | |
1247 | mac_info_old.vpath_no = vpath_idx; | |
1248 | status = vxge_del_mac_addr(vdev, &mac_info_old); | |
1249 | } | |
1250 | ||
1251 | if (unlikely(!is_vxge_card_up(vdev))) { | |
1252 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
1253 | return VXGE_HW_OK; | |
1254 | } | |
1255 | ||
1256 | /* Set this mac address to all the vpaths */ | |
1257 | for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) { | |
1258 | mac_info_new.vpath_no = vpath_idx; | |
1259 | mac_info_new.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE; | |
1260 | status = vxge_add_mac_addr(vdev, &mac_info_new); | |
1261 | if (status != VXGE_HW_OK) | |
1262 | return -EINVAL; | |
1263 | } | |
1264 | ||
1265 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
1266 | ||
1267 | return status; | |
1268 | } | |
1269 | ||
1270 | /* | |
1271 | * vxge_vpath_intr_enable | |
1272 | * @vdev: pointer to vdev | |
1273 | * @vp_id: vpath for which to enable the interrupts | |
1274 | * | |
1275 | * Enables the interrupts for the vpath | |
1276 | */ | |
42821a5b | 1277 | static void vxge_vpath_intr_enable(struct vxgedev *vdev, int vp_id) |
703da5a1 RV |
1278 | { |
1279 | struct vxge_vpath *vpath = &vdev->vpaths[vp_id]; | |
b59c9457 SH |
1280 | int msix_id = 0; |
1281 | int tim_msix_id[4] = {0, 1, 0, 0}; | |
1282 | int alarm_msix_id = VXGE_ALARM_MSIX_ID; | |
703da5a1 RV |
1283 | |
1284 | vxge_hw_vpath_intr_enable(vpath->handle); | |
1285 | ||
1286 | if (vdev->config.intr_type == INTA) | |
1287 | vxge_hw_vpath_inta_unmask_tx_rx(vpath->handle); | |
1288 | else { | |
703da5a1 RV |
1289 | vxge_hw_vpath_msix_set(vpath->handle, tim_msix_id, |
1290 | alarm_msix_id); | |
1291 | ||
b59c9457 | 1292 | msix_id = vpath->device_id * VXGE_HW_VPATH_MSIX_ACTIVE; |
703da5a1 RV |
1293 | vxge_hw_vpath_msix_unmask(vpath->handle, msix_id); |
1294 | vxge_hw_vpath_msix_unmask(vpath->handle, msix_id + 1); | |
1295 | ||
1296 | /* enable the alarm vector */ | |
b59c9457 SH |
1297 | msix_id = (vpath->handle->vpath->hldev->first_vp_id * |
1298 | VXGE_HW_VPATH_MSIX_ACTIVE) + alarm_msix_id; | |
1299 | vxge_hw_vpath_msix_unmask(vpath->handle, msix_id); | |
703da5a1 RV |
1300 | } |
1301 | } | |
1302 | ||
1303 | /* | |
1304 | * vxge_vpath_intr_disable | |
1305 | * @vdev: pointer to vdev | |
1306 | * @vp_id: vpath for which to disable the interrupts | |
1307 | * | |
1308 | * Disables the interrupts for the vpath | |
1309 | */ | |
42821a5b | 1310 | static void vxge_vpath_intr_disable(struct vxgedev *vdev, int vp_id) |
703da5a1 RV |
1311 | { |
1312 | struct vxge_vpath *vpath = &vdev->vpaths[vp_id]; | |
4d2a5b40 | 1313 | struct __vxge_hw_device *hldev; |
703da5a1 RV |
1314 | int msix_id; |
1315 | ||
d8ee7071 | 1316 | hldev = pci_get_drvdata(vdev->pdev); |
4d2a5b40 JM |
1317 | |
1318 | vxge_hw_vpath_wait_receive_idle(hldev, vpath->device_id); | |
1319 | ||
703da5a1 RV |
1320 | vxge_hw_vpath_intr_disable(vpath->handle); |
1321 | ||
1322 | if (vdev->config.intr_type == INTA) | |
1323 | vxge_hw_vpath_inta_mask_tx_rx(vpath->handle); | |
1324 | else { | |
b59c9457 | 1325 | msix_id = vpath->device_id * VXGE_HW_VPATH_MSIX_ACTIVE; |
703da5a1 RV |
1326 | vxge_hw_vpath_msix_mask(vpath->handle, msix_id); |
1327 | vxge_hw_vpath_msix_mask(vpath->handle, msix_id + 1); | |
1328 | ||
1329 | /* disable the alarm vector */ | |
b59c9457 SH |
1330 | msix_id = (vpath->handle->vpath->hldev->first_vp_id * |
1331 | VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID; | |
703da5a1 RV |
1332 | vxge_hw_vpath_msix_mask(vpath->handle, msix_id); |
1333 | } | |
1334 | } | |
1335 | ||
1336 | /* | |
1337 | * vxge_reset_vpath | |
1338 | * @vdev: pointer to vdev | |
1339 | * @vp_id: vpath to reset | |
1340 | * | |
1341 | * Resets the vpath | |
1342 | */ | |
1343 | static int vxge_reset_vpath(struct vxgedev *vdev, int vp_id) | |
1344 | { | |
1345 | enum vxge_hw_status status = VXGE_HW_OK; | |
7adf7d1b | 1346 | struct vxge_vpath *vpath = &vdev->vpaths[vp_id]; |
703da5a1 RV |
1347 | int ret = 0; |
1348 | ||
1349 | /* check if device is down already */ | |
1350 | if (unlikely(!is_vxge_card_up(vdev))) | |
1351 | return 0; | |
1352 | ||
1353 | /* is device reset already scheduled */ | |
1354 | if (test_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) | |
1355 | return 0; | |
1356 | ||
7adf7d1b JM |
1357 | if (vpath->handle) { |
1358 | if (vxge_hw_vpath_reset(vpath->handle) == VXGE_HW_OK) { | |
703da5a1 | 1359 | if (is_vxge_card_up(vdev) && |
7adf7d1b | 1360 | vxge_hw_vpath_recover_from_reset(vpath->handle) |
703da5a1 RV |
1361 | != VXGE_HW_OK) { |
1362 | vxge_debug_init(VXGE_ERR, | |
1363 | "vxge_hw_vpath_recover_from_reset" | |
1364 | "failed for vpath:%d", vp_id); | |
1365 | return status; | |
1366 | } | |
1367 | } else { | |
1368 | vxge_debug_init(VXGE_ERR, | |
1369 | "vxge_hw_vpath_reset failed for" | |
1370 | "vpath:%d", vp_id); | |
1371 | return status; | |
1372 | } | |
1373 | } else | |
1374 | return VXGE_HW_FAIL; | |
1375 | ||
7adf7d1b JM |
1376 | vxge_restore_vpath_mac_addr(vpath); |
1377 | vxge_restore_vpath_vid_table(vpath); | |
703da5a1 RV |
1378 | |
1379 | /* Enable all broadcast */ | |
7adf7d1b JM |
1380 | vxge_hw_vpath_bcast_enable(vpath->handle); |
1381 | ||
1382 | /* Enable all multicast */ | |
1383 | if (vdev->all_multi_flg) { | |
1384 | status = vxge_hw_vpath_mcast_enable(vpath->handle); | |
1385 | if (status != VXGE_HW_OK) | |
1386 | vxge_debug_init(VXGE_ERR, | |
1387 | "%s:%d Enabling multicast failed", | |
1388 | __func__, __LINE__); | |
1389 | } | |
703da5a1 RV |
1390 | |
1391 | /* Enable the interrupts */ | |
1392 | vxge_vpath_intr_enable(vdev, vp_id); | |
1393 | ||
1394 | smp_wmb(); | |
1395 | ||
1396 | /* Enable the flow of traffic through the vpath */ | |
7adf7d1b | 1397 | vxge_hw_vpath_enable(vpath->handle); |
703da5a1 RV |
1398 | |
1399 | smp_wmb(); | |
7adf7d1b JM |
1400 | vxge_hw_vpath_rx_doorbell_init(vpath->handle); |
1401 | vpath->ring.last_status = VXGE_HW_OK; | |
703da5a1 RV |
1402 | |
1403 | /* Vpath reset done */ | |
1404 | clear_bit(vp_id, &vdev->vp_reset); | |
1405 | ||
1406 | /* Start the vpath queue */ | |
98f45da2 JM |
1407 | if (netif_tx_queue_stopped(vpath->fifo.txq)) |
1408 | netif_tx_wake_queue(vpath->fifo.txq); | |
703da5a1 RV |
1409 | |
1410 | return ret; | |
1411 | } | |
1412 | ||
1413 | static int do_vxge_reset(struct vxgedev *vdev, int event) | |
1414 | { | |
1415 | enum vxge_hw_status status; | |
1416 | int ret = 0, vp_id, i; | |
1417 | ||
1418 | vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); | |
1419 | ||
1420 | if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET)) { | |
1421 | /* check if device is down already */ | |
1422 | if (unlikely(!is_vxge_card_up(vdev))) | |
1423 | return 0; | |
1424 | ||
1425 | /* is reset already scheduled */ | |
1426 | if (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) | |
1427 | return 0; | |
1428 | } | |
1429 | ||
1430 | if (event == VXGE_LL_FULL_RESET) { | |
1431 | /* wait for all the vpath reset to complete */ | |
1432 | for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) { | |
1433 | while (test_bit(vp_id, &vdev->vp_reset)) | |
1434 | msleep(50); | |
1435 | } | |
1436 | ||
1437 | /* if execution mode is set to debug, don't reset the adapter */ | |
1438 | if (unlikely(vdev->exec_mode)) { | |
1439 | vxge_debug_init(VXGE_ERR, | |
1440 | "%s: execution mode is debug, returning..", | |
1441 | vdev->ndev->name); | |
7adf7d1b JM |
1442 | clear_bit(__VXGE_STATE_CARD_UP, &vdev->state); |
1443 | netif_tx_stop_all_queues(vdev->ndev); | |
1444 | return 0; | |
703da5a1 RV |
1445 | } |
1446 | } | |
1447 | ||
1448 | if (event == VXGE_LL_FULL_RESET) { | |
4d2a5b40 | 1449 | vxge_hw_device_wait_receive_idle(vdev->devh); |
703da5a1 RV |
1450 | vxge_hw_device_intr_disable(vdev->devh); |
1451 | ||
1452 | switch (vdev->cric_err_event) { | |
1453 | case VXGE_HW_EVENT_UNKNOWN: | |
d03848e0 | 1454 | netif_tx_stop_all_queues(vdev->ndev); |
703da5a1 RV |
1455 | vxge_debug_init(VXGE_ERR, |
1456 | "fatal: %s: Disabling device due to" | |
1457 | "unknown error", | |
1458 | vdev->ndev->name); | |
1459 | ret = -EPERM; | |
1460 | goto out; | |
1461 | case VXGE_HW_EVENT_RESET_START: | |
1462 | break; | |
1463 | case VXGE_HW_EVENT_RESET_COMPLETE: | |
1464 | case VXGE_HW_EVENT_LINK_DOWN: | |
1465 | case VXGE_HW_EVENT_LINK_UP: | |
1466 | case VXGE_HW_EVENT_ALARM_CLEARED: | |
1467 | case VXGE_HW_EVENT_ECCERR: | |
1468 | case VXGE_HW_EVENT_MRPCIM_ECCERR: | |
1469 | ret = -EPERM; | |
1470 | goto out; | |
1471 | case VXGE_HW_EVENT_FIFO_ERR: | |
1472 | case VXGE_HW_EVENT_VPATH_ERR: | |
1473 | break; | |
1474 | case VXGE_HW_EVENT_CRITICAL_ERR: | |
d03848e0 | 1475 | netif_tx_stop_all_queues(vdev->ndev); |
703da5a1 RV |
1476 | vxge_debug_init(VXGE_ERR, |
1477 | "fatal: %s: Disabling device due to" | |
1478 | "serious error", | |
1479 | vdev->ndev->name); | |
1480 | /* SOP or device reset required */ | |
1481 | /* This event is not currently used */ | |
1482 | ret = -EPERM; | |
1483 | goto out; | |
1484 | case VXGE_HW_EVENT_SERR: | |
d03848e0 | 1485 | netif_tx_stop_all_queues(vdev->ndev); |
703da5a1 RV |
1486 | vxge_debug_init(VXGE_ERR, |
1487 | "fatal: %s: Disabling device due to" | |
1488 | "serious error", | |
1489 | vdev->ndev->name); | |
1490 | ret = -EPERM; | |
1491 | goto out; | |
1492 | case VXGE_HW_EVENT_SRPCIM_SERR: | |
1493 | case VXGE_HW_EVENT_MRPCIM_SERR: | |
1494 | ret = -EPERM; | |
1495 | goto out; | |
1496 | case VXGE_HW_EVENT_SLOT_FREEZE: | |
d03848e0 | 1497 | netif_tx_stop_all_queues(vdev->ndev); |
703da5a1 RV |
1498 | vxge_debug_init(VXGE_ERR, |
1499 | "fatal: %s: Disabling device due to" | |
1500 | "slot freeze", | |
1501 | vdev->ndev->name); | |
1502 | ret = -EPERM; | |
1503 | goto out; | |
1504 | default: | |
1505 | break; | |
1506 | ||
1507 | } | |
1508 | } | |
1509 | ||
1510 | if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET)) | |
d03848e0 | 1511 | netif_tx_stop_all_queues(vdev->ndev); |
703da5a1 RV |
1512 | |
1513 | if (event == VXGE_LL_FULL_RESET) { | |
1514 | status = vxge_reset_all_vpaths(vdev); | |
1515 | if (status != VXGE_HW_OK) { | |
1516 | vxge_debug_init(VXGE_ERR, | |
1517 | "fatal: %s: can not reset vpaths", | |
1518 | vdev->ndev->name); | |
1519 | ret = -EPERM; | |
1520 | goto out; | |
1521 | } | |
1522 | } | |
1523 | ||
1524 | if (event == VXGE_LL_COMPL_RESET) { | |
1525 | for (i = 0; i < vdev->no_of_vpath; i++) | |
1526 | if (vdev->vpaths[i].handle) { | |
1527 | if (vxge_hw_vpath_recover_from_reset( | |
1528 | vdev->vpaths[i].handle) | |
1529 | != VXGE_HW_OK) { | |
1530 | vxge_debug_init(VXGE_ERR, | |
1531 | "vxge_hw_vpath_recover_" | |
1532 | "from_reset failed for vpath: " | |
1533 | "%d", i); | |
1534 | ret = -EPERM; | |
1535 | goto out; | |
1536 | } | |
1537 | } else { | |
1538 | vxge_debug_init(VXGE_ERR, | |
1539 | "vxge_hw_vpath_reset failed for " | |
1540 | "vpath:%d", i); | |
1541 | ret = -EPERM; | |
1542 | goto out; | |
1543 | } | |
1544 | } | |
1545 | ||
1546 | if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET)) { | |
1547 | /* Reprogram the DA table with populated mac addresses */ | |
1548 | for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) { | |
1549 | vxge_restore_vpath_mac_addr(&vdev->vpaths[vp_id]); | |
1550 | vxge_restore_vpath_vid_table(&vdev->vpaths[vp_id]); | |
1551 | } | |
1552 | ||
1553 | /* enable vpath interrupts */ | |
1554 | for (i = 0; i < vdev->no_of_vpath; i++) | |
1555 | vxge_vpath_intr_enable(vdev, i); | |
1556 | ||
1557 | vxge_hw_device_intr_enable(vdev->devh); | |
1558 | ||
1559 | smp_wmb(); | |
1560 | ||
1561 | /* Indicate card up */ | |
1562 | set_bit(__VXGE_STATE_CARD_UP, &vdev->state); | |
1563 | ||
1564 | /* Get the traffic to flow through the vpaths */ | |
1565 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
1566 | vxge_hw_vpath_enable(vdev->vpaths[i].handle); | |
1567 | smp_wmb(); | |
1568 | vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[i].handle); | |
1569 | } | |
1570 | ||
d03848e0 | 1571 | netif_tx_wake_all_queues(vdev->ndev); |
703da5a1 RV |
1572 | } |
1573 | ||
1574 | out: | |
1575 | vxge_debug_entryexit(VXGE_TRACE, | |
1576 | "%s:%d Exiting...", __func__, __LINE__); | |
1577 | ||
1578 | /* Indicate reset done */ | |
1579 | if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET)) | |
1580 | clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state); | |
1581 | return ret; | |
1582 | } | |
1583 | ||
1584 | /* | |
1585 | * vxge_reset | |
1586 | * @vdev: pointer to ll device | |
1587 | * | |
1588 | * driver may reset the chip on events of serr, eccerr, etc | |
1589 | */ | |
42821a5b | 1590 | static int vxge_reset(struct vxgedev *vdev) |
703da5a1 | 1591 | { |
7adf7d1b | 1592 | return do_vxge_reset(vdev, VXGE_LL_FULL_RESET); |
703da5a1 RV |
1593 | } |
1594 | ||
1595 | /** | |
1596 | * vxge_poll - Receive handler when Receive Polling is used. | |
1597 | * @dev: pointer to the device structure. | |
1598 | * @budget: Number of packets budgeted to be processed in this iteration. | |
1599 | * | |
1600 | * This function comes into picture only if Receive side is being handled | |
1601 | * through polling (called NAPI in linux). It mostly does what the normal | |
1602 | * Rx interrupt handler does in terms of descriptor and packet processing | |
1603 | * but not in an interrupt context. Also it will process a specified number | |
1604 | * of packets at most in one iteration. This value is passed down by the | |
1605 | * kernel as the function argument 'budget'. | |
1606 | */ | |
1607 | static int vxge_poll_msix(struct napi_struct *napi, int budget) | |
1608 | { | |
1609 | struct vxge_ring *ring = | |
1610 | container_of(napi, struct vxge_ring, napi); | |
1611 | int budget_org = budget; | |
1612 | ring->budget = budget; | |
1613 | ||
1614 | vxge_hw_vpath_poll_rx(ring->handle); | |
1615 | ||
1616 | if (ring->pkts_processed < budget_org) { | |
1617 | napi_complete(napi); | |
1618 | /* Re enable the Rx interrupts for the vpath */ | |
1619 | vxge_hw_channel_msix_unmask( | |
1620 | (struct __vxge_hw_channel *)ring->handle, | |
1621 | ring->rx_vector_no); | |
1622 | } | |
1623 | ||
1624 | return ring->pkts_processed; | |
1625 | } | |
1626 | ||
1627 | static int vxge_poll_inta(struct napi_struct *napi, int budget) | |
1628 | { | |
1629 | struct vxgedev *vdev = container_of(napi, struct vxgedev, napi); | |
1630 | int pkts_processed = 0; | |
1631 | int i; | |
1632 | int budget_org = budget; | |
1633 | struct vxge_ring *ring; | |
1634 | ||
d8ee7071 | 1635 | struct __vxge_hw_device *hldev = pci_get_drvdata(vdev->pdev); |
703da5a1 RV |
1636 | |
1637 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
1638 | ring = &vdev->vpaths[i].ring; | |
1639 | ring->budget = budget; | |
1640 | vxge_hw_vpath_poll_rx(ring->handle); | |
1641 | pkts_processed += ring->pkts_processed; | |
1642 | budget -= ring->pkts_processed; | |
1643 | if (budget <= 0) | |
1644 | break; | |
1645 | } | |
1646 | ||
1647 | VXGE_COMPLETE_ALL_TX(vdev); | |
1648 | ||
1649 | if (pkts_processed < budget_org) { | |
1650 | napi_complete(napi); | |
1651 | /* Re enable the Rx interrupts for the ring */ | |
1652 | vxge_hw_device_unmask_all(hldev); | |
1653 | vxge_hw_device_flush_io(hldev); | |
1654 | } | |
1655 | ||
1656 | return pkts_processed; | |
1657 | } | |
1658 | ||
1659 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1660 | /** | |
1661 | * vxge_netpoll - netpoll event handler entry point | |
1662 | * @dev : pointer to the device structure. | |
1663 | * Description: | |
1664 | * This function will be called by upper layer to check for events on the | |
1665 | * interface in situations where interrupts are disabled. It is used for | |
1666 | * specific in-kernel networking tasks, such as remote consoles and kernel | |
1667 | * debugging over the network (example netdump in RedHat). | |
1668 | */ | |
1669 | static void vxge_netpoll(struct net_device *dev) | |
1670 | { | |
2c91308f | 1671 | struct __vxge_hw_device *hldev; |
703da5a1 RV |
1672 | struct vxgedev *vdev; |
1673 | ||
5f54cebb | 1674 | vdev = netdev_priv(dev); |
d8ee7071 | 1675 | hldev = pci_get_drvdata(vdev->pdev); |
703da5a1 RV |
1676 | |
1677 | vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); | |
1678 | ||
1679 | if (pci_channel_offline(vdev->pdev)) | |
1680 | return; | |
1681 | ||
1682 | disable_irq(dev->irq); | |
1683 | vxge_hw_device_clear_tx_rx(hldev); | |
1684 | ||
1685 | vxge_hw_device_clear_tx_rx(hldev); | |
1686 | VXGE_COMPLETE_ALL_RX(vdev); | |
1687 | VXGE_COMPLETE_ALL_TX(vdev); | |
1688 | ||
1689 | enable_irq(dev->irq); | |
1690 | ||
1691 | vxge_debug_entryexit(VXGE_TRACE, | |
1692 | "%s:%d Exiting...", __func__, __LINE__); | |
703da5a1 RV |
1693 | } |
1694 | #endif | |
1695 | ||
1696 | /* RTH configuration */ | |
1697 | static enum vxge_hw_status vxge_rth_configure(struct vxgedev *vdev) | |
1698 | { | |
1699 | enum vxge_hw_status status = VXGE_HW_OK; | |
1700 | struct vxge_hw_rth_hash_types hash_types; | |
1701 | u8 itable[256] = {0}; /* indirection table */ | |
1702 | u8 mtable[256] = {0}; /* CPU to vpath mapping */ | |
1703 | int index; | |
1704 | ||
1705 | /* | |
1706 | * Filling | |
1707 | * - itable with bucket numbers | |
1708 | * - mtable with bucket-to-vpath mapping | |
1709 | */ | |
1710 | for (index = 0; index < (1 << vdev->config.rth_bkt_sz); index++) { | |
1711 | itable[index] = index; | |
1712 | mtable[index] = index % vdev->no_of_vpath; | |
1713 | } | |
1714 | ||
703da5a1 RV |
1715 | /* set indirection table, bucket-to-vpath mapping */ |
1716 | status = vxge_hw_vpath_rts_rth_itable_set(vdev->vp_handles, | |
1717 | vdev->no_of_vpath, | |
1718 | mtable, itable, | |
1719 | vdev->config.rth_bkt_sz); | |
1720 | if (status != VXGE_HW_OK) { | |
1721 | vxge_debug_init(VXGE_ERR, | |
1722 | "RTH indirection table configuration failed " | |
1723 | "for vpath:%d", vdev->vpaths[0].device_id); | |
1724 | return status; | |
1725 | } | |
1726 | ||
47f01db4 JM |
1727 | /* Fill RTH hash types */ |
1728 | hash_types.hash_type_tcpipv4_en = vdev->config.rth_hash_type_tcpipv4; | |
1729 | hash_types.hash_type_ipv4_en = vdev->config.rth_hash_type_ipv4; | |
1730 | hash_types.hash_type_tcpipv6_en = vdev->config.rth_hash_type_tcpipv6; | |
1731 | hash_types.hash_type_ipv6_en = vdev->config.rth_hash_type_ipv6; | |
1732 | hash_types.hash_type_tcpipv6ex_en = | |
1733 | vdev->config.rth_hash_type_tcpipv6ex; | |
1734 | hash_types.hash_type_ipv6ex_en = vdev->config.rth_hash_type_ipv6ex; | |
1735 | ||
703da5a1 | 1736 | /* |
47f01db4 JM |
1737 | * Because the itable_set() method uses the active_table field |
1738 | * for the target virtual path the RTH config should be updated | |
1739 | * for all VPATHs. The h/w only uses the lowest numbered VPATH | |
1740 | * when steering frames. | |
1741 | */ | |
703da5a1 RV |
1742 | for (index = 0; index < vdev->no_of_vpath; index++) { |
1743 | status = vxge_hw_vpath_rts_rth_set( | |
1744 | vdev->vpaths[index].handle, | |
1745 | vdev->config.rth_algorithm, | |
1746 | &hash_types, | |
1747 | vdev->config.rth_bkt_sz); | |
1748 | ||
1749 | if (status != VXGE_HW_OK) { | |
1750 | vxge_debug_init(VXGE_ERR, | |
1751 | "RTH configuration failed for vpath:%d", | |
1752 | vdev->vpaths[index].device_id); | |
1753 | return status; | |
1754 | } | |
1755 | } | |
1756 | ||
1757 | return status; | |
1758 | } | |
1759 | ||
42821a5b | 1760 | static int vxge_mac_list_add(struct vxge_vpath *vpath, struct macInfo *mac) |
703da5a1 RV |
1761 | { |
1762 | struct vxge_mac_addrs *new_mac_entry; | |
1763 | u8 *mac_address = NULL; | |
1764 | ||
1765 | if (vpath->mac_addr_cnt >= VXGE_MAX_LEARN_MAC_ADDR_CNT) | |
1766 | return TRUE; | |
1767 | ||
1768 | new_mac_entry = kzalloc(sizeof(struct vxge_mac_addrs), GFP_ATOMIC); | |
1769 | if (!new_mac_entry) { | |
1770 | vxge_debug_mem(VXGE_ERR, | |
1771 | "%s: memory allocation failed", | |
1772 | VXGE_DRIVER_NAME); | |
1773 | return FALSE; | |
1774 | } | |
1775 | ||
1776 | list_add(&new_mac_entry->item, &vpath->mac_addr_list); | |
1777 | ||
1778 | /* Copy the new mac address to the list */ | |
1779 | mac_address = (u8 *)&new_mac_entry->macaddr; | |
1780 | memcpy(mac_address, mac->macaddr, ETH_ALEN); | |
1781 | ||
1782 | new_mac_entry->state = mac->state; | |
1783 | vpath->mac_addr_cnt++; | |
1784 | ||
1785 | /* Is this a multicast address */ | |
1786 | if (0x01 & mac->macaddr[0]) | |
1787 | vpath->mcast_addr_cnt++; | |
1788 | ||
1789 | return TRUE; | |
1790 | } | |
1791 | ||
1792 | /* Add a mac address to DA table */ | |
42821a5b | 1793 | static enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev, |
1794 | struct macInfo *mac) | |
703da5a1 RV |
1795 | { |
1796 | enum vxge_hw_status status = VXGE_HW_OK; | |
1797 | struct vxge_vpath *vpath; | |
1798 | enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode; | |
1799 | ||
1800 | if (0x01 & mac->macaddr[0]) /* multicast address */ | |
1801 | duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE; | |
1802 | else | |
1803 | duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE; | |
1804 | ||
1805 | vpath = &vdev->vpaths[mac->vpath_no]; | |
1806 | status = vxge_hw_vpath_mac_addr_add(vpath->handle, mac->macaddr, | |
1807 | mac->macmask, duplicate_mode); | |
1808 | if (status != VXGE_HW_OK) { | |
1809 | vxge_debug_init(VXGE_ERR, | |
1810 | "DA config add entry failed for vpath:%d", | |
1811 | vpath->device_id); | |
1812 | } else | |
1813 | if (FALSE == vxge_mac_list_add(vpath, mac)) | |
1814 | status = -EPERM; | |
1815 | ||
1816 | return status; | |
1817 | } | |
1818 | ||
42821a5b | 1819 | static int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac) |
703da5a1 RV |
1820 | { |
1821 | struct list_head *entry, *next; | |
1822 | u64 del_mac = 0; | |
2c91308f | 1823 | u8 *mac_address = (u8 *)(&del_mac); |
703da5a1 RV |
1824 | |
1825 | /* Copy the mac address to delete from the list */ | |
1826 | memcpy(mac_address, mac->macaddr, ETH_ALEN); | |
1827 | ||
1828 | list_for_each_safe(entry, next, &vpath->mac_addr_list) { | |
1829 | if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac) { | |
1830 | list_del(entry); | |
1831 | kfree((struct vxge_mac_addrs *)entry); | |
1832 | vpath->mac_addr_cnt--; | |
1833 | ||
1834 | /* Is this a multicast address */ | |
1835 | if (0x01 & mac->macaddr[0]) | |
1836 | vpath->mcast_addr_cnt--; | |
1837 | return TRUE; | |
1838 | } | |
1839 | } | |
1840 | ||
1841 | return FALSE; | |
1842 | } | |
1843 | /* delete a mac address from DA table */ | |
42821a5b | 1844 | static enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev, |
1845 | struct macInfo *mac) | |
703da5a1 RV |
1846 | { |
1847 | enum vxge_hw_status status = VXGE_HW_OK; | |
1848 | struct vxge_vpath *vpath; | |
1849 | ||
1850 | vpath = &vdev->vpaths[mac->vpath_no]; | |
1851 | status = vxge_hw_vpath_mac_addr_delete(vpath->handle, mac->macaddr, | |
1852 | mac->macmask); | |
1853 | if (status != VXGE_HW_OK) { | |
1854 | vxge_debug_init(VXGE_ERR, | |
1855 | "DA config delete entry failed for vpath:%d", | |
1856 | vpath->device_id); | |
1857 | } else | |
1858 | vxge_mac_list_del(vpath, mac); | |
1859 | return status; | |
1860 | } | |
1861 | ||
1862 | /* list all mac addresses from DA table */ | |
1863 | enum vxge_hw_status | |
1864 | static vxge_search_mac_addr_in_da_table(struct vxge_vpath *vpath, | |
1865 | struct macInfo *mac) | |
1866 | { | |
1867 | enum vxge_hw_status status = VXGE_HW_OK; | |
1868 | unsigned char macmask[ETH_ALEN]; | |
1869 | unsigned char macaddr[ETH_ALEN]; | |
1870 | ||
1871 | status = vxge_hw_vpath_mac_addr_get(vpath->handle, | |
1872 | macaddr, macmask); | |
1873 | if (status != VXGE_HW_OK) { | |
1874 | vxge_debug_init(VXGE_ERR, | |
1875 | "DA config list entry failed for vpath:%d", | |
1876 | vpath->device_id); | |
1877 | return status; | |
1878 | } | |
1879 | ||
1880 | while (memcmp(mac->macaddr, macaddr, ETH_ALEN)) { | |
1881 | ||
1882 | status = vxge_hw_vpath_mac_addr_get_next(vpath->handle, | |
1883 | macaddr, macmask); | |
1884 | if (status != VXGE_HW_OK) | |
1885 | break; | |
1886 | } | |
1887 | ||
1888 | return status; | |
1889 | } | |
1890 | ||
1891 | /* Store all vlan ids from the list to the vid table */ | |
42821a5b | 1892 | static enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath) |
703da5a1 RV |
1893 | { |
1894 | enum vxge_hw_status status = VXGE_HW_OK; | |
1895 | struct vxgedev *vdev = vpath->vdev; | |
1896 | u16 vid; | |
1897 | ||
1898 | if (vdev->vlgrp && vpath->is_open) { | |
1899 | ||
b738127d | 1900 | for (vid = 0; vid < VLAN_N_VID; vid++) { |
703da5a1 RV |
1901 | if (!vlan_group_get_device(vdev->vlgrp, vid)) |
1902 | continue; | |
1903 | /* Add these vlan to the vid table */ | |
1904 | status = vxge_hw_vpath_vid_add(vpath->handle, vid); | |
1905 | } | |
1906 | } | |
1907 | ||
1908 | return status; | |
1909 | } | |
1910 | ||
1911 | /* Store all mac addresses from the list to the DA table */ | |
42821a5b | 1912 | static enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath) |
703da5a1 RV |
1913 | { |
1914 | enum vxge_hw_status status = VXGE_HW_OK; | |
1915 | struct macInfo mac_info; | |
1916 | u8 *mac_address = NULL; | |
1917 | struct list_head *entry, *next; | |
1918 | ||
1919 | memset(&mac_info, 0, sizeof(struct macInfo)); | |
1920 | ||
1921 | if (vpath->is_open) { | |
1922 | ||
1923 | list_for_each_safe(entry, next, &vpath->mac_addr_list) { | |
1924 | mac_address = | |
1925 | (u8 *)& | |
1926 | ((struct vxge_mac_addrs *)entry)->macaddr; | |
1927 | memcpy(mac_info.macaddr, mac_address, ETH_ALEN); | |
1928 | ((struct vxge_mac_addrs *)entry)->state = | |
1929 | VXGE_LL_MAC_ADDR_IN_DA_TABLE; | |
1930 | /* does this mac address already exist in da table? */ | |
1931 | status = vxge_search_mac_addr_in_da_table(vpath, | |
1932 | &mac_info); | |
1933 | if (status != VXGE_HW_OK) { | |
1934 | /* Add this mac address to the DA table */ | |
1935 | status = vxge_hw_vpath_mac_addr_add( | |
1936 | vpath->handle, mac_info.macaddr, | |
1937 | mac_info.macmask, | |
1938 | VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE); | |
1939 | if (status != VXGE_HW_OK) { | |
1940 | vxge_debug_init(VXGE_ERR, | |
1941 | "DA add entry failed for vpath:%d", | |
1942 | vpath->device_id); | |
1943 | ((struct vxge_mac_addrs *)entry)->state | |
1944 | = VXGE_LL_MAC_ADDR_IN_LIST; | |
1945 | } | |
1946 | } | |
1947 | } | |
1948 | } | |
1949 | ||
1950 | return status; | |
1951 | } | |
1952 | ||
1953 | /* reset vpaths */ | |
4d2a5b40 | 1954 | enum vxge_hw_status vxge_reset_all_vpaths(struct vxgedev *vdev) |
703da5a1 | 1955 | { |
703da5a1 | 1956 | enum vxge_hw_status status = VXGE_HW_OK; |
7adf7d1b JM |
1957 | struct vxge_vpath *vpath; |
1958 | int i; | |
703da5a1 | 1959 | |
7adf7d1b JM |
1960 | for (i = 0; i < vdev->no_of_vpath; i++) { |
1961 | vpath = &vdev->vpaths[i]; | |
1962 | if (vpath->handle) { | |
1963 | if (vxge_hw_vpath_reset(vpath->handle) == VXGE_HW_OK) { | |
703da5a1 RV |
1964 | if (is_vxge_card_up(vdev) && |
1965 | vxge_hw_vpath_recover_from_reset( | |
7adf7d1b | 1966 | vpath->handle) != VXGE_HW_OK) { |
703da5a1 RV |
1967 | vxge_debug_init(VXGE_ERR, |
1968 | "vxge_hw_vpath_recover_" | |
1969 | "from_reset failed for vpath: " | |
1970 | "%d", i); | |
1971 | return status; | |
1972 | } | |
1973 | } else { | |
1974 | vxge_debug_init(VXGE_ERR, | |
1975 | "vxge_hw_vpath_reset failed for " | |
1976 | "vpath:%d", i); | |
1977 | return status; | |
1978 | } | |
1979 | } | |
7adf7d1b JM |
1980 | } |
1981 | ||
703da5a1 RV |
1982 | return status; |
1983 | } | |
1984 | ||
1985 | /* close vpaths */ | |
42821a5b | 1986 | static void vxge_close_vpaths(struct vxgedev *vdev, int index) |
703da5a1 | 1987 | { |
7adf7d1b | 1988 | struct vxge_vpath *vpath; |
703da5a1 | 1989 | int i; |
7adf7d1b | 1990 | |
703da5a1 | 1991 | for (i = index; i < vdev->no_of_vpath; i++) { |
7adf7d1b JM |
1992 | vpath = &vdev->vpaths[i]; |
1993 | ||
1994 | if (vpath->handle && vpath->is_open) { | |
1995 | vxge_hw_vpath_close(vpath->handle); | |
703da5a1 RV |
1996 | vdev->stats.vpaths_open--; |
1997 | } | |
7adf7d1b JM |
1998 | vpath->is_open = 0; |
1999 | vpath->handle = NULL; | |
703da5a1 RV |
2000 | } |
2001 | } | |
2002 | ||
2003 | /* open vpaths */ | |
42821a5b | 2004 | static int vxge_open_vpaths(struct vxgedev *vdev) |
703da5a1 | 2005 | { |
7adf7d1b | 2006 | struct vxge_hw_vpath_attr attr; |
703da5a1 | 2007 | enum vxge_hw_status status; |
7adf7d1b | 2008 | struct vxge_vpath *vpath; |
703da5a1 | 2009 | u32 vp_id = 0; |
7adf7d1b | 2010 | int i; |
703da5a1 RV |
2011 | |
2012 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
7adf7d1b | 2013 | vpath = &vdev->vpaths[i]; |
7adf7d1b | 2014 | vxge_assert(vpath->is_configured); |
e7935c96 JM |
2015 | |
2016 | if (!vdev->titan1) { | |
2017 | struct vxge_hw_vp_config *vcfg; | |
2018 | vcfg = &vdev->devh->config.vp_config[vpath->device_id]; | |
2019 | ||
2020 | vcfg->rti.urange_a = RTI_T1A_RX_URANGE_A; | |
2021 | vcfg->rti.urange_b = RTI_T1A_RX_URANGE_B; | |
2022 | vcfg->rti.urange_c = RTI_T1A_RX_URANGE_C; | |
2023 | vcfg->tti.uec_a = TTI_T1A_TX_UFC_A; | |
2024 | vcfg->tti.uec_b = TTI_T1A_TX_UFC_B; | |
2025 | vcfg->tti.uec_c = TTI_T1A_TX_UFC_C(vdev->mtu); | |
2026 | vcfg->tti.uec_d = TTI_T1A_TX_UFC_D(vdev->mtu); | |
2027 | vcfg->tti.ltimer_val = VXGE_T1A_TTI_LTIMER_VAL; | |
2028 | vcfg->tti.rtimer_val = VXGE_T1A_TTI_RTIMER_VAL; | |
2029 | } | |
2030 | ||
7adf7d1b | 2031 | attr.vp_id = vpath->device_id; |
703da5a1 RV |
2032 | attr.fifo_attr.callback = vxge_xmit_compl; |
2033 | attr.fifo_attr.txdl_term = vxge_tx_term; | |
2034 | attr.fifo_attr.per_txdl_space = sizeof(struct vxge_tx_priv); | |
7adf7d1b | 2035 | attr.fifo_attr.userdata = &vpath->fifo; |
703da5a1 RV |
2036 | |
2037 | attr.ring_attr.callback = vxge_rx_1b_compl; | |
2038 | attr.ring_attr.rxd_init = vxge_rx_initial_replenish; | |
2039 | attr.ring_attr.rxd_term = vxge_rx_term; | |
2040 | attr.ring_attr.per_rxd_space = sizeof(struct vxge_rx_priv); | |
7adf7d1b | 2041 | attr.ring_attr.userdata = &vpath->ring; |
703da5a1 | 2042 | |
7adf7d1b JM |
2043 | vpath->ring.ndev = vdev->ndev; |
2044 | vpath->ring.pdev = vdev->pdev; | |
2045 | status = vxge_hw_vpath_open(vdev->devh, &attr, &vpath->handle); | |
703da5a1 | 2046 | if (status == VXGE_HW_OK) { |
7adf7d1b | 2047 | vpath->fifo.handle = |
703da5a1 | 2048 | (struct __vxge_hw_fifo *)attr.fifo_attr.userdata; |
7adf7d1b | 2049 | vpath->ring.handle = |
703da5a1 | 2050 | (struct __vxge_hw_ring *)attr.ring_attr.userdata; |
7adf7d1b | 2051 | vpath->fifo.tx_steering_type = |
703da5a1 | 2052 | vdev->config.tx_steering_type; |
7adf7d1b JM |
2053 | vpath->fifo.ndev = vdev->ndev; |
2054 | vpath->fifo.pdev = vdev->pdev; | |
98f45da2 JM |
2055 | if (vdev->config.tx_steering_type) |
2056 | vpath->fifo.txq = | |
2057 | netdev_get_tx_queue(vdev->ndev, i); | |
2058 | else | |
2059 | vpath->fifo.txq = | |
2060 | netdev_get_tx_queue(vdev->ndev, 0); | |
7adf7d1b | 2061 | vpath->fifo.indicate_max_pkts = |
703da5a1 | 2062 | vdev->config.fifo_indicate_max_pkts; |
7adf7d1b JM |
2063 | vpath->ring.rx_vector_no = 0; |
2064 | vpath->ring.rx_csum = vdev->rx_csum; | |
b81b3733 | 2065 | vpath->ring.rx_hwts = vdev->rx_hwts; |
7adf7d1b JM |
2066 | vpath->is_open = 1; |
2067 | vdev->vp_handles[i] = vpath->handle; | |
2068 | vpath->ring.gro_enable = vdev->config.gro_enable; | |
2069 | vpath->ring.vlan_tag_strip = vdev->vlan_tag_strip; | |
703da5a1 RV |
2070 | vdev->stats.vpaths_open++; |
2071 | } else { | |
2072 | vdev->stats.vpath_open_fail++; | |
2073 | vxge_debug_init(VXGE_ERR, | |
2074 | "%s: vpath: %d failed to open " | |
2075 | "with status: %d", | |
7adf7d1b | 2076 | vdev->ndev->name, vpath->device_id, |
703da5a1 RV |
2077 | status); |
2078 | vxge_close_vpaths(vdev, 0); | |
2079 | return -EPERM; | |
2080 | } | |
2081 | ||
7adf7d1b | 2082 | vp_id = vpath->handle->vpath->vp_id; |
703da5a1 RV |
2083 | vdev->vpaths_deployed |= vxge_mBIT(vp_id); |
2084 | } | |
2085 | return VXGE_HW_OK; | |
2086 | } | |
2087 | ||
2088 | /* | |
2089 | * vxge_isr_napi | |
2090 | * @irq: the irq of the device. | |
2091 | * @dev_id: a void pointer to the hldev structure of the Titan device | |
2092 | * @ptregs: pointer to the registers pushed on the stack. | |
2093 | * | |
2094 | * This function is the ISR handler of the device when napi is enabled. It | |
2095 | * identifies the reason for the interrupt and calls the relevant service | |
2096 | * routines. | |
2097 | */ | |
2098 | static irqreturn_t vxge_isr_napi(int irq, void *dev_id) | |
2099 | { | |
703da5a1 | 2100 | struct net_device *dev; |
a5d165b5 | 2101 | struct __vxge_hw_device *hldev; |
703da5a1 RV |
2102 | u64 reason; |
2103 | enum vxge_hw_status status; | |
2c91308f | 2104 | struct vxgedev *vdev = (struct vxgedev *)dev_id; |
703da5a1 RV |
2105 | |
2106 | vxge_debug_intr(VXGE_TRACE, "%s:%d", __func__, __LINE__); | |
2107 | ||
a5d165b5 | 2108 | dev = vdev->ndev; |
d8ee7071 | 2109 | hldev = pci_get_drvdata(vdev->pdev); |
703da5a1 RV |
2110 | |
2111 | if (pci_channel_offline(vdev->pdev)) | |
2112 | return IRQ_NONE; | |
2113 | ||
2114 | if (unlikely(!is_vxge_card_up(vdev))) | |
4d2a5b40 | 2115 | return IRQ_HANDLED; |
703da5a1 RV |
2116 | |
2117 | status = vxge_hw_device_begin_irq(hldev, vdev->exec_mode, | |
2118 | &reason); | |
2119 | if (status == VXGE_HW_OK) { | |
2120 | vxge_hw_device_mask_all(hldev); | |
2121 | ||
2122 | if (reason & | |
2123 | VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT( | |
2124 | vdev->vpaths_deployed >> | |
2125 | (64 - VXGE_HW_MAX_VIRTUAL_PATHS))) { | |
2126 | ||
2127 | vxge_hw_device_clear_tx_rx(hldev); | |
2128 | napi_schedule(&vdev->napi); | |
2129 | vxge_debug_intr(VXGE_TRACE, | |
2130 | "%s:%d Exiting...", __func__, __LINE__); | |
2131 | return IRQ_HANDLED; | |
2132 | } else | |
2133 | vxge_hw_device_unmask_all(hldev); | |
2134 | } else if (unlikely((status == VXGE_HW_ERR_VPATH) || | |
2135 | (status == VXGE_HW_ERR_CRITICAL) || | |
2136 | (status == VXGE_HW_ERR_FIFO))) { | |
2137 | vxge_hw_device_mask_all(hldev); | |
2138 | vxge_hw_device_flush_io(hldev); | |
2139 | return IRQ_HANDLED; | |
2140 | } else if (unlikely(status == VXGE_HW_ERR_SLOT_FREEZE)) | |
2141 | return IRQ_HANDLED; | |
2142 | ||
2143 | vxge_debug_intr(VXGE_TRACE, "%s:%d Exiting...", __func__, __LINE__); | |
2144 | return IRQ_NONE; | |
2145 | } | |
2146 | ||
2147 | #ifdef CONFIG_PCI_MSI | |
2148 | ||
2149 | static irqreturn_t | |
2150 | vxge_tx_msix_handle(int irq, void *dev_id) | |
2151 | { | |
2152 | struct vxge_fifo *fifo = (struct vxge_fifo *)dev_id; | |
2153 | ||
2154 | VXGE_COMPLETE_VPATH_TX(fifo); | |
2155 | ||
2156 | return IRQ_HANDLED; | |
2157 | } | |
2158 | ||
2159 | static irqreturn_t | |
2160 | vxge_rx_msix_napi_handle(int irq, void *dev_id) | |
2161 | { | |
2162 | struct vxge_ring *ring = (struct vxge_ring *)dev_id; | |
2163 | ||
2164 | /* MSIX_IDX for Rx is 1 */ | |
2165 | vxge_hw_channel_msix_mask((struct __vxge_hw_channel *)ring->handle, | |
2166 | ring->rx_vector_no); | |
2167 | ||
2168 | napi_schedule(&ring->napi); | |
2169 | return IRQ_HANDLED; | |
2170 | } | |
2171 | ||
2172 | static irqreturn_t | |
2173 | vxge_alarm_msix_handle(int irq, void *dev_id) | |
2174 | { | |
2175 | int i; | |
2176 | enum vxge_hw_status status; | |
2177 | struct vxge_vpath *vpath = (struct vxge_vpath *)dev_id; | |
2178 | struct vxgedev *vdev = vpath->vdev; | |
b59c9457 SH |
2179 | int msix_id = (vpath->handle->vpath->vp_id * |
2180 | VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID; | |
703da5a1 RV |
2181 | |
2182 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
b59c9457 | 2183 | vxge_hw_vpath_msix_mask(vdev->vpaths[i].handle, msix_id); |
703da5a1 RV |
2184 | |
2185 | status = vxge_hw_vpath_alarm_process(vdev->vpaths[i].handle, | |
2186 | vdev->exec_mode); | |
2187 | if (status == VXGE_HW_OK) { | |
2188 | ||
2189 | vxge_hw_vpath_msix_unmask(vdev->vpaths[i].handle, | |
b59c9457 | 2190 | msix_id); |
703da5a1 RV |
2191 | continue; |
2192 | } | |
2193 | vxge_debug_intr(VXGE_ERR, | |
2194 | "%s: vxge_hw_vpath_alarm_process failed %x ", | |
2195 | VXGE_DRIVER_NAME, status); | |
2196 | } | |
2197 | return IRQ_HANDLED; | |
2198 | } | |
2199 | ||
2200 | static int vxge_alloc_msix(struct vxgedev *vdev) | |
2201 | { | |
2202 | int j, i, ret = 0; | |
b59c9457 | 2203 | int msix_intr_vect = 0, temp; |
703da5a1 RV |
2204 | vdev->intr_cnt = 0; |
2205 | ||
b59c9457 | 2206 | start: |
703da5a1 RV |
2207 | /* Tx/Rx MSIX Vectors count */ |
2208 | vdev->intr_cnt = vdev->no_of_vpath * 2; | |
2209 | ||
2210 | /* Alarm MSIX Vectors count */ | |
2211 | vdev->intr_cnt++; | |
2212 | ||
baeb2ffa JP |
2213 | vdev->entries = kcalloc(vdev->intr_cnt, sizeof(struct msix_entry), |
2214 | GFP_KERNEL); | |
703da5a1 RV |
2215 | if (!vdev->entries) { |
2216 | vxge_debug_init(VXGE_ERR, | |
2217 | "%s: memory allocation failed", | |
2218 | VXGE_DRIVER_NAME); | |
cc413d90 MS |
2219 | ret = -ENOMEM; |
2220 | goto alloc_entries_failed; | |
703da5a1 RV |
2221 | } |
2222 | ||
baeb2ffa JP |
2223 | vdev->vxge_entries = kcalloc(vdev->intr_cnt, |
2224 | sizeof(struct vxge_msix_entry), | |
2225 | GFP_KERNEL); | |
703da5a1 RV |
2226 | if (!vdev->vxge_entries) { |
2227 | vxge_debug_init(VXGE_ERR, "%s: memory allocation failed", | |
2228 | VXGE_DRIVER_NAME); | |
cc413d90 MS |
2229 | ret = -ENOMEM; |
2230 | goto alloc_vxge_entries_failed; | |
703da5a1 RV |
2231 | } |
2232 | ||
b59c9457 | 2233 | for (i = 0, j = 0; i < vdev->no_of_vpath; i++) { |
703da5a1 RV |
2234 | |
2235 | msix_intr_vect = i * VXGE_HW_VPATH_MSIX_ACTIVE; | |
2236 | ||
2237 | /* Initialize the fifo vector */ | |
2238 | vdev->entries[j].entry = msix_intr_vect; | |
2239 | vdev->vxge_entries[j].entry = msix_intr_vect; | |
2240 | vdev->vxge_entries[j].in_use = 0; | |
2241 | j++; | |
2242 | ||
2243 | /* Initialize the ring vector */ | |
2244 | vdev->entries[j].entry = msix_intr_vect + 1; | |
2245 | vdev->vxge_entries[j].entry = msix_intr_vect + 1; | |
2246 | vdev->vxge_entries[j].in_use = 0; | |
2247 | j++; | |
2248 | } | |
2249 | ||
2250 | /* Initialize the alarm vector */ | |
b59c9457 SH |
2251 | vdev->entries[j].entry = VXGE_ALARM_MSIX_ID; |
2252 | vdev->vxge_entries[j].entry = VXGE_ALARM_MSIX_ID; | |
703da5a1 RV |
2253 | vdev->vxge_entries[j].in_use = 0; |
2254 | ||
b59c9457 | 2255 | ret = pci_enable_msix(vdev->pdev, vdev->entries, vdev->intr_cnt); |
b59c9457 | 2256 | if (ret > 0) { |
703da5a1 RV |
2257 | vxge_debug_init(VXGE_ERR, |
2258 | "%s: MSI-X enable failed for %d vectors, ret: %d", | |
b59c9457 | 2259 | VXGE_DRIVER_NAME, vdev->intr_cnt, ret); |
cc413d90 MS |
2260 | if ((max_config_vpath != VXGE_USE_DEFAULT) || (ret < 3)) { |
2261 | ret = -ENODEV; | |
2262 | goto enable_msix_failed; | |
2263 | } | |
2264 | ||
703da5a1 RV |
2265 | kfree(vdev->entries); |
2266 | kfree(vdev->vxge_entries); | |
2267 | vdev->entries = NULL; | |
2268 | vdev->vxge_entries = NULL; | |
b59c9457 SH |
2269 | /* Try with less no of vector by reducing no of vpaths count */ |
2270 | temp = (ret - 1)/2; | |
2271 | vxge_close_vpaths(vdev, temp); | |
2272 | vdev->no_of_vpath = temp; | |
2273 | goto start; | |
cc413d90 MS |
2274 | } else if (ret < 0) { |
2275 | ret = -ENODEV; | |
2276 | goto enable_msix_failed; | |
2277 | } | |
703da5a1 | 2278 | return 0; |
cc413d90 MS |
2279 | |
2280 | enable_msix_failed: | |
2281 | kfree(vdev->vxge_entries); | |
2282 | alloc_vxge_entries_failed: | |
2283 | kfree(vdev->entries); | |
2284 | alloc_entries_failed: | |
2285 | return ret; | |
703da5a1 RV |
2286 | } |
2287 | ||
2288 | static int vxge_enable_msix(struct vxgedev *vdev) | |
2289 | { | |
2290 | ||
2291 | int i, ret = 0; | |
703da5a1 | 2292 | /* 0 - Tx, 1 - Rx */ |
b59c9457 SH |
2293 | int tim_msix_id[4] = {0, 1, 0, 0}; |
2294 | ||
703da5a1 RV |
2295 | vdev->intr_cnt = 0; |
2296 | ||
2297 | /* allocate msix vectors */ | |
2298 | ret = vxge_alloc_msix(vdev); | |
2299 | if (!ret) { | |
703da5a1 | 2300 | for (i = 0; i < vdev->no_of_vpath; i++) { |
7adf7d1b | 2301 | struct vxge_vpath *vpath = &vdev->vpaths[i]; |
703da5a1 | 2302 | |
7adf7d1b JM |
2303 | /* If fifo or ring are not enabled, the MSIX vector for |
2304 | * it should be set to 0. | |
2305 | */ | |
2306 | vpath->ring.rx_vector_no = (vpath->device_id * | |
2307 | VXGE_HW_VPATH_MSIX_ACTIVE) + 1; | |
703da5a1 | 2308 | |
7adf7d1b JM |
2309 | vxge_hw_vpath_msix_set(vpath->handle, tim_msix_id, |
2310 | VXGE_ALARM_MSIX_ID); | |
703da5a1 RV |
2311 | } |
2312 | } | |
2313 | ||
2314 | return ret; | |
2315 | } | |
2316 | ||
2317 | static void vxge_rem_msix_isr(struct vxgedev *vdev) | |
2318 | { | |
2319 | int intr_cnt; | |
2320 | ||
b59c9457 | 2321 | for (intr_cnt = 0; intr_cnt < (vdev->no_of_vpath * 2 + 1); |
703da5a1 RV |
2322 | intr_cnt++) { |
2323 | if (vdev->vxge_entries[intr_cnt].in_use) { | |
2324 | synchronize_irq(vdev->entries[intr_cnt].vector); | |
2325 | free_irq(vdev->entries[intr_cnt].vector, | |
2326 | vdev->vxge_entries[intr_cnt].arg); | |
2327 | vdev->vxge_entries[intr_cnt].in_use = 0; | |
2328 | } | |
2329 | } | |
2330 | ||
2331 | kfree(vdev->entries); | |
2332 | kfree(vdev->vxge_entries); | |
2333 | vdev->entries = NULL; | |
2334 | vdev->vxge_entries = NULL; | |
2335 | ||
2336 | if (vdev->config.intr_type == MSI_X) | |
2337 | pci_disable_msix(vdev->pdev); | |
2338 | } | |
2339 | #endif | |
2340 | ||
2341 | static void vxge_rem_isr(struct vxgedev *vdev) | |
2342 | { | |
2c91308f | 2343 | struct __vxge_hw_device *hldev; |
d8ee7071 | 2344 | hldev = pci_get_drvdata(vdev->pdev); |
703da5a1 RV |
2345 | |
2346 | #ifdef CONFIG_PCI_MSI | |
2347 | if (vdev->config.intr_type == MSI_X) { | |
2348 | vxge_rem_msix_isr(vdev); | |
2349 | } else | |
2350 | #endif | |
2351 | if (vdev->config.intr_type == INTA) { | |
2352 | synchronize_irq(vdev->pdev->irq); | |
a5d165b5 | 2353 | free_irq(vdev->pdev->irq, vdev); |
703da5a1 RV |
2354 | } |
2355 | } | |
2356 | ||
2357 | static int vxge_add_isr(struct vxgedev *vdev) | |
2358 | { | |
2359 | int ret = 0; | |
703da5a1 RV |
2360 | #ifdef CONFIG_PCI_MSI |
2361 | int vp_idx = 0, intr_idx = 0, intr_cnt = 0, msix_idx = 0, irq_req = 0; | |
703da5a1 RV |
2362 | int pci_fun = PCI_FUNC(vdev->pdev->devfn); |
2363 | ||
2364 | if (vdev->config.intr_type == MSI_X) | |
2365 | ret = vxge_enable_msix(vdev); | |
2366 | ||
2367 | if (ret) { | |
2368 | vxge_debug_init(VXGE_ERR, | |
2369 | "%s: Enabling MSI-X Failed", VXGE_DRIVER_NAME); | |
eb5f10c2 SH |
2370 | vxge_debug_init(VXGE_ERR, |
2371 | "%s: Defaulting to INTA", VXGE_DRIVER_NAME); | |
2372 | vdev->config.intr_type = INTA; | |
703da5a1 RV |
2373 | } |
2374 | ||
2375 | if (vdev->config.intr_type == MSI_X) { | |
2376 | for (intr_idx = 0; | |
2377 | intr_idx < (vdev->no_of_vpath * | |
2378 | VXGE_HW_VPATH_MSIX_ACTIVE); intr_idx++) { | |
2379 | ||
2380 | msix_idx = intr_idx % VXGE_HW_VPATH_MSIX_ACTIVE; | |
2381 | irq_req = 0; | |
2382 | ||
2383 | switch (msix_idx) { | |
2384 | case 0: | |
2385 | snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN, | |
b59c9457 SH |
2386 | "%s:vxge:MSI-X %d - Tx - fn:%d vpath:%d", |
2387 | vdev->ndev->name, | |
2388 | vdev->entries[intr_cnt].entry, | |
2389 | pci_fun, vp_idx); | |
703da5a1 RV |
2390 | ret = request_irq( |
2391 | vdev->entries[intr_cnt].vector, | |
2392 | vxge_tx_msix_handle, 0, | |
2393 | vdev->desc[intr_cnt], | |
2394 | &vdev->vpaths[vp_idx].fifo); | |
2395 | vdev->vxge_entries[intr_cnt].arg = | |
2396 | &vdev->vpaths[vp_idx].fifo; | |
2397 | irq_req = 1; | |
2398 | break; | |
2399 | case 1: | |
2400 | snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN, | |
b59c9457 SH |
2401 | "%s:vxge:MSI-X %d - Rx - fn:%d vpath:%d", |
2402 | vdev->ndev->name, | |
2403 | vdev->entries[intr_cnt].entry, | |
2404 | pci_fun, vp_idx); | |
703da5a1 RV |
2405 | ret = request_irq( |
2406 | vdev->entries[intr_cnt].vector, | |
2407 | vxge_rx_msix_napi_handle, | |
2408 | 0, | |
2409 | vdev->desc[intr_cnt], | |
2410 | &vdev->vpaths[vp_idx].ring); | |
2411 | vdev->vxge_entries[intr_cnt].arg = | |
2412 | &vdev->vpaths[vp_idx].ring; | |
2413 | irq_req = 1; | |
2414 | break; | |
2415 | } | |
2416 | ||
2417 | if (ret) { | |
2418 | vxge_debug_init(VXGE_ERR, | |
2419 | "%s: MSIX - %d Registration failed", | |
2420 | vdev->ndev->name, intr_cnt); | |
2421 | vxge_rem_msix_isr(vdev); | |
eb5f10c2 SH |
2422 | vdev->config.intr_type = INTA; |
2423 | vxge_debug_init(VXGE_ERR, | |
2424 | "%s: Defaulting to INTA" | |
2425 | , vdev->ndev->name); | |
703da5a1 | 2426 | goto INTA_MODE; |
703da5a1 RV |
2427 | } |
2428 | ||
2429 | if (irq_req) { | |
2430 | /* We requested for this msix interrupt */ | |
2431 | vdev->vxge_entries[intr_cnt].in_use = 1; | |
b59c9457 SH |
2432 | msix_idx += vdev->vpaths[vp_idx].device_id * |
2433 | VXGE_HW_VPATH_MSIX_ACTIVE; | |
703da5a1 RV |
2434 | vxge_hw_vpath_msix_unmask( |
2435 | vdev->vpaths[vp_idx].handle, | |
b59c9457 | 2436 | msix_idx); |
703da5a1 RV |
2437 | intr_cnt++; |
2438 | } | |
2439 | ||
2440 | /* Point to next vpath handler */ | |
8e95a202 JP |
2441 | if (((intr_idx + 1) % VXGE_HW_VPATH_MSIX_ACTIVE == 0) && |
2442 | (vp_idx < (vdev->no_of_vpath - 1))) | |
2443 | vp_idx++; | |
703da5a1 RV |
2444 | } |
2445 | ||
b59c9457 | 2446 | intr_cnt = vdev->no_of_vpath * 2; |
703da5a1 | 2447 | snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN, |
b59c9457 SH |
2448 | "%s:vxge:MSI-X %d - Alarm - fn:%d", |
2449 | vdev->ndev->name, | |
2450 | vdev->entries[intr_cnt].entry, | |
2451 | pci_fun); | |
703da5a1 RV |
2452 | /* For Alarm interrupts */ |
2453 | ret = request_irq(vdev->entries[intr_cnt].vector, | |
2454 | vxge_alarm_msix_handle, 0, | |
2455 | vdev->desc[intr_cnt], | |
b59c9457 | 2456 | &vdev->vpaths[0]); |
703da5a1 RV |
2457 | if (ret) { |
2458 | vxge_debug_init(VXGE_ERR, | |
2459 | "%s: MSIX - %d Registration failed", | |
2460 | vdev->ndev->name, intr_cnt); | |
2461 | vxge_rem_msix_isr(vdev); | |
eb5f10c2 SH |
2462 | vdev->config.intr_type = INTA; |
2463 | vxge_debug_init(VXGE_ERR, | |
2464 | "%s: Defaulting to INTA", | |
2465 | vdev->ndev->name); | |
703da5a1 | 2466 | goto INTA_MODE; |
703da5a1 RV |
2467 | } |
2468 | ||
b59c9457 SH |
2469 | msix_idx = (vdev->vpaths[0].handle->vpath->vp_id * |
2470 | VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID; | |
703da5a1 | 2471 | vxge_hw_vpath_msix_unmask(vdev->vpaths[vp_idx].handle, |
b59c9457 | 2472 | msix_idx); |
703da5a1 | 2473 | vdev->vxge_entries[intr_cnt].in_use = 1; |
b59c9457 | 2474 | vdev->vxge_entries[intr_cnt].arg = &vdev->vpaths[0]; |
703da5a1 RV |
2475 | } |
2476 | INTA_MODE: | |
2477 | #endif | |
703da5a1 RV |
2478 | |
2479 | if (vdev->config.intr_type == INTA) { | |
b59c9457 SH |
2480 | snprintf(vdev->desc[0], VXGE_INTR_STRLEN, |
2481 | "%s:vxge:INTA", vdev->ndev->name); | |
eb5f10c2 SH |
2482 | vxge_hw_device_set_intr_type(vdev->devh, |
2483 | VXGE_HW_INTR_MODE_IRQLINE); | |
2484 | vxge_hw_vpath_tti_ci_set(vdev->devh, | |
2485 | vdev->vpaths[0].device_id); | |
703da5a1 RV |
2486 | ret = request_irq((int) vdev->pdev->irq, |
2487 | vxge_isr_napi, | |
a5d165b5 | 2488 | IRQF_SHARED, vdev->desc[0], vdev); |
703da5a1 RV |
2489 | if (ret) { |
2490 | vxge_debug_init(VXGE_ERR, | |
2491 | "%s %s-%d: ISR registration failed", | |
2492 | VXGE_DRIVER_NAME, "IRQ", vdev->pdev->irq); | |
2493 | return -ENODEV; | |
2494 | } | |
2495 | vxge_debug_init(VXGE_TRACE, | |
2496 | "new %s-%d line allocated", | |
2497 | "IRQ", vdev->pdev->irq); | |
2498 | } | |
2499 | ||
2500 | return VXGE_HW_OK; | |
2501 | } | |
2502 | ||
2503 | static void vxge_poll_vp_reset(unsigned long data) | |
2504 | { | |
2505 | struct vxgedev *vdev = (struct vxgedev *)data; | |
2506 | int i, j = 0; | |
2507 | ||
2508 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
2509 | if (test_bit(i, &vdev->vp_reset)) { | |
2510 | vxge_reset_vpath(vdev, i); | |
2511 | j++; | |
2512 | } | |
2513 | } | |
2514 | if (j && (vdev->config.intr_type != MSI_X)) { | |
2515 | vxge_hw_device_unmask_all(vdev->devh); | |
2516 | vxge_hw_device_flush_io(vdev->devh); | |
2517 | } | |
2518 | ||
2519 | mod_timer(&vdev->vp_reset_timer, jiffies + HZ / 2); | |
2520 | } | |
2521 | ||
2522 | static void vxge_poll_vp_lockup(unsigned long data) | |
2523 | { | |
2524 | struct vxgedev *vdev = (struct vxgedev *)data; | |
703da5a1 | 2525 | enum vxge_hw_status status = VXGE_HW_OK; |
7adf7d1b JM |
2526 | struct vxge_vpath *vpath; |
2527 | struct vxge_ring *ring; | |
2528 | int i; | |
703da5a1 RV |
2529 | |
2530 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
2531 | ring = &vdev->vpaths[i].ring; | |
2532 | /* Did this vpath received any packets */ | |
2533 | if (ring->stats.prev_rx_frms == ring->stats.rx_frms) { | |
2534 | status = vxge_hw_vpath_check_leak(ring->handle); | |
2535 | ||
2536 | /* Did it received any packets last time */ | |
2537 | if ((VXGE_HW_FAIL == status) && | |
2538 | (VXGE_HW_FAIL == ring->last_status)) { | |
2539 | ||
2540 | /* schedule vpath reset */ | |
2541 | if (!test_and_set_bit(i, &vdev->vp_reset)) { | |
7adf7d1b | 2542 | vpath = &vdev->vpaths[i]; |
703da5a1 RV |
2543 | |
2544 | /* disable interrupts for this vpath */ | |
2545 | vxge_vpath_intr_disable(vdev, i); | |
2546 | ||
2547 | /* stop the queue for this vpath */ | |
98f45da2 | 2548 | netif_tx_stop_queue(vpath->fifo.txq); |
703da5a1 RV |
2549 | continue; |
2550 | } | |
2551 | } | |
2552 | } | |
2553 | ring->stats.prev_rx_frms = ring->stats.rx_frms; | |
2554 | ring->last_status = status; | |
2555 | } | |
2556 | ||
2557 | /* Check every 1 milli second */ | |
2558 | mod_timer(&vdev->vp_lockup_timer, jiffies + HZ / 1000); | |
2559 | } | |
2560 | ||
2561 | /** | |
2562 | * vxge_open | |
2563 | * @dev: pointer to the device structure. | |
2564 | * | |
2565 | * This function is the open entry point of the driver. It mainly calls a | |
2566 | * function to allocate Rx buffers and inserts them into the buffer | |
2567 | * descriptors and then enables the Rx part of the NIC. | |
2568 | * Return value: '0' on success and an appropriate (-)ve integer as | |
2569 | * defined in errno.h file on failure. | |
2570 | */ | |
42821a5b | 2571 | static int |
703da5a1 RV |
2572 | vxge_open(struct net_device *dev) |
2573 | { | |
2574 | enum vxge_hw_status status; | |
2575 | struct vxgedev *vdev; | |
2576 | struct __vxge_hw_device *hldev; | |
7adf7d1b | 2577 | struct vxge_vpath *vpath; |
703da5a1 RV |
2578 | int ret = 0; |
2579 | int i; | |
2580 | u64 val64, function_mode; | |
2581 | vxge_debug_entryexit(VXGE_TRACE, | |
2582 | "%s: %s:%d", dev->name, __func__, __LINE__); | |
2583 | ||
5f54cebb | 2584 | vdev = netdev_priv(dev); |
d8ee7071 | 2585 | hldev = pci_get_drvdata(vdev->pdev); |
703da5a1 RV |
2586 | function_mode = vdev->config.device_hw_info.function_mode; |
2587 | ||
2588 | /* make sure you have link off by default every time Nic is | |
2589 | * initialized */ | |
2590 | netif_carrier_off(dev); | |
2591 | ||
703da5a1 RV |
2592 | /* Open VPATHs */ |
2593 | status = vxge_open_vpaths(vdev); | |
2594 | if (status != VXGE_HW_OK) { | |
2595 | vxge_debug_init(VXGE_ERR, | |
2596 | "%s: fatal: Vpath open failed", vdev->ndev->name); | |
2597 | ret = -EPERM; | |
2598 | goto out0; | |
2599 | } | |
2600 | ||
2601 | vdev->mtu = dev->mtu; | |
2602 | ||
2603 | status = vxge_add_isr(vdev); | |
2604 | if (status != VXGE_HW_OK) { | |
2605 | vxge_debug_init(VXGE_ERR, | |
2606 | "%s: fatal: ISR add failed", dev->name); | |
2607 | ret = -EPERM; | |
2608 | goto out1; | |
2609 | } | |
2610 | ||
703da5a1 RV |
2611 | if (vdev->config.intr_type != MSI_X) { |
2612 | netif_napi_add(dev, &vdev->napi, vxge_poll_inta, | |
2613 | vdev->config.napi_weight); | |
2614 | napi_enable(&vdev->napi); | |
7adf7d1b JM |
2615 | for (i = 0; i < vdev->no_of_vpath; i++) { |
2616 | vpath = &vdev->vpaths[i]; | |
2617 | vpath->ring.napi_p = &vdev->napi; | |
2618 | } | |
703da5a1 RV |
2619 | } else { |
2620 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
7adf7d1b JM |
2621 | vpath = &vdev->vpaths[i]; |
2622 | netif_napi_add(dev, &vpath->ring.napi, | |
703da5a1 | 2623 | vxge_poll_msix, vdev->config.napi_weight); |
7adf7d1b JM |
2624 | napi_enable(&vpath->ring.napi); |
2625 | vpath->ring.napi_p = &vpath->ring.napi; | |
703da5a1 RV |
2626 | } |
2627 | } | |
2628 | ||
2629 | /* configure RTH */ | |
2630 | if (vdev->config.rth_steering) { | |
2631 | status = vxge_rth_configure(vdev); | |
2632 | if (status != VXGE_HW_OK) { | |
2633 | vxge_debug_init(VXGE_ERR, | |
2634 | "%s: fatal: RTH configuration failed", | |
2635 | dev->name); | |
2636 | ret = -EPERM; | |
2637 | goto out2; | |
2638 | } | |
2639 | } | |
47f01db4 JM |
2640 | printk(KERN_INFO "%s: Receive Hashing Offload %s\n", dev->name, |
2641 | hldev->config.rth_en ? "enabled" : "disabled"); | |
703da5a1 RV |
2642 | |
2643 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
7adf7d1b JM |
2644 | vpath = &vdev->vpaths[i]; |
2645 | ||
703da5a1 | 2646 | /* set initial mtu before enabling the device */ |
7adf7d1b | 2647 | status = vxge_hw_vpath_mtu_set(vpath->handle, vdev->mtu); |
703da5a1 RV |
2648 | if (status != VXGE_HW_OK) { |
2649 | vxge_debug_init(VXGE_ERR, | |
2650 | "%s: fatal: can not set new MTU", dev->name); | |
2651 | ret = -EPERM; | |
2652 | goto out2; | |
2653 | } | |
2654 | } | |
2655 | ||
2656 | VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_TRACE, VXGE_COMPONENT_LL, vdev); | |
2657 | vxge_debug_init(vdev->level_trace, | |
2658 | "%s: MTU is %d", vdev->ndev->name, vdev->mtu); | |
2659 | VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_ERR, VXGE_COMPONENT_LL, vdev); | |
2660 | ||
7adf7d1b JM |
2661 | /* Restore the DA, VID table and also multicast and promiscuous mode |
2662 | * states | |
2663 | */ | |
2664 | if (vdev->all_multi_flg) { | |
2665 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
2666 | vpath = &vdev->vpaths[i]; | |
2667 | vxge_restore_vpath_mac_addr(vpath); | |
2668 | vxge_restore_vpath_vid_table(vpath); | |
2669 | ||
2670 | status = vxge_hw_vpath_mcast_enable(vpath->handle); | |
2671 | if (status != VXGE_HW_OK) | |
2672 | vxge_debug_init(VXGE_ERR, | |
2673 | "%s:%d Enabling multicast failed", | |
2674 | __func__, __LINE__); | |
2675 | } | |
703da5a1 RV |
2676 | } |
2677 | ||
2678 | /* Enable vpath to sniff all unicast/multicast traffic that not | |
2679 | * addressed to them. We allow promiscous mode for PF only | |
2680 | */ | |
2681 | ||
2682 | val64 = 0; | |
2683 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) | |
2684 | val64 |= VXGE_HW_RXMAC_AUTHORIZE_ALL_ADDR_VP(i); | |
2685 | ||
2686 | vxge_hw_mgmt_reg_write(vdev->devh, | |
2687 | vxge_hw_mgmt_reg_type_mrpcim, | |
2688 | 0, | |
2689 | (ulong)offsetof(struct vxge_hw_mrpcim_reg, | |
2690 | rxmac_authorize_all_addr), | |
2691 | val64); | |
2692 | ||
2693 | vxge_hw_mgmt_reg_write(vdev->devh, | |
2694 | vxge_hw_mgmt_reg_type_mrpcim, | |
2695 | 0, | |
2696 | (ulong)offsetof(struct vxge_hw_mrpcim_reg, | |
2697 | rxmac_authorize_all_vid), | |
2698 | val64); | |
2699 | ||
2700 | vxge_set_multicast(dev); | |
2701 | ||
2702 | /* Enabling Bcast and mcast for all vpath */ | |
2703 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
7adf7d1b JM |
2704 | vpath = &vdev->vpaths[i]; |
2705 | status = vxge_hw_vpath_bcast_enable(vpath->handle); | |
703da5a1 RV |
2706 | if (status != VXGE_HW_OK) |
2707 | vxge_debug_init(VXGE_ERR, | |
2708 | "%s : Can not enable bcast for vpath " | |
2709 | "id %d", dev->name, i); | |
2710 | if (vdev->config.addr_learn_en) { | |
7adf7d1b | 2711 | status = vxge_hw_vpath_mcast_enable(vpath->handle); |
703da5a1 RV |
2712 | if (status != VXGE_HW_OK) |
2713 | vxge_debug_init(VXGE_ERR, | |
2714 | "%s : Can not enable mcast for vpath " | |
2715 | "id %d", dev->name, i); | |
2716 | } | |
2717 | } | |
2718 | ||
2719 | vxge_hw_device_setpause_data(vdev->devh, 0, | |
2720 | vdev->config.tx_pause_enable, | |
2721 | vdev->config.rx_pause_enable); | |
2722 | ||
2723 | if (vdev->vp_reset_timer.function == NULL) | |
2724 | vxge_os_timer(vdev->vp_reset_timer, | |
2725 | vxge_poll_vp_reset, vdev, (HZ/2)); | |
2726 | ||
e7935c96 JM |
2727 | /* There is no need to check for RxD leak and RxD lookup on Titan1A */ |
2728 | if (vdev->titan1 && vdev->vp_lockup_timer.function == NULL) | |
2729 | vxge_os_timer(vdev->vp_lockup_timer, vxge_poll_vp_lockup, vdev, | |
2730 | HZ / 2); | |
703da5a1 RV |
2731 | |
2732 | set_bit(__VXGE_STATE_CARD_UP, &vdev->state); | |
2733 | ||
2734 | smp_wmb(); | |
2735 | ||
2736 | if (vxge_hw_device_link_state_get(vdev->devh) == VXGE_HW_LINK_UP) { | |
2737 | netif_carrier_on(vdev->ndev); | |
75f5e1c6 | 2738 | netdev_notice(vdev->ndev, "Link Up\n"); |
703da5a1 RV |
2739 | vdev->stats.link_up++; |
2740 | } | |
2741 | ||
2742 | vxge_hw_device_intr_enable(vdev->devh); | |
2743 | ||
2744 | smp_wmb(); | |
2745 | ||
2746 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
7adf7d1b JM |
2747 | vpath = &vdev->vpaths[i]; |
2748 | ||
2749 | vxge_hw_vpath_enable(vpath->handle); | |
703da5a1 | 2750 | smp_wmb(); |
7adf7d1b | 2751 | vxge_hw_vpath_rx_doorbell_init(vpath->handle); |
703da5a1 RV |
2752 | } |
2753 | ||
d03848e0 | 2754 | netif_tx_start_all_queues(vdev->ndev); |
703da5a1 RV |
2755 | goto out0; |
2756 | ||
2757 | out2: | |
2758 | vxge_rem_isr(vdev); | |
2759 | ||
2760 | /* Disable napi */ | |
2761 | if (vdev->config.intr_type != MSI_X) | |
2762 | napi_disable(&vdev->napi); | |
2763 | else { | |
2764 | for (i = 0; i < vdev->no_of_vpath; i++) | |
2765 | napi_disable(&vdev->vpaths[i].ring.napi); | |
2766 | } | |
2767 | ||
2768 | out1: | |
2769 | vxge_close_vpaths(vdev, 0); | |
2770 | out0: | |
2771 | vxge_debug_entryexit(VXGE_TRACE, | |
2772 | "%s: %s:%d Exiting...", | |
2773 | dev->name, __func__, __LINE__); | |
2774 | return ret; | |
2775 | } | |
2776 | ||
2777 | /* Loop throught the mac address list and delete all the entries */ | |
42821a5b | 2778 | static void vxge_free_mac_add_list(struct vxge_vpath *vpath) |
703da5a1 RV |
2779 | { |
2780 | ||
2781 | struct list_head *entry, *next; | |
2782 | if (list_empty(&vpath->mac_addr_list)) | |
2783 | return; | |
2784 | ||
2785 | list_for_each_safe(entry, next, &vpath->mac_addr_list) { | |
2786 | list_del(entry); | |
2787 | kfree((struct vxge_mac_addrs *)entry); | |
2788 | } | |
2789 | } | |
2790 | ||
2791 | static void vxge_napi_del_all(struct vxgedev *vdev) | |
2792 | { | |
2793 | int i; | |
2794 | if (vdev->config.intr_type != MSI_X) | |
2795 | netif_napi_del(&vdev->napi); | |
2796 | else { | |
2797 | for (i = 0; i < vdev->no_of_vpath; i++) | |
2798 | netif_napi_del(&vdev->vpaths[i].ring.napi); | |
2799 | } | |
703da5a1 RV |
2800 | } |
2801 | ||
42821a5b | 2802 | static int do_vxge_close(struct net_device *dev, int do_io) |
703da5a1 RV |
2803 | { |
2804 | enum vxge_hw_status status; | |
2805 | struct vxgedev *vdev; | |
2806 | struct __vxge_hw_device *hldev; | |
2807 | int i; | |
2808 | u64 val64, vpath_vector; | |
2809 | vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", | |
2810 | dev->name, __func__, __LINE__); | |
2811 | ||
5f54cebb | 2812 | vdev = netdev_priv(dev); |
d8ee7071 | 2813 | hldev = pci_get_drvdata(vdev->pdev); |
703da5a1 | 2814 | |
bd9ee680 SH |
2815 | if (unlikely(!is_vxge_card_up(vdev))) |
2816 | return 0; | |
2817 | ||
703da5a1 RV |
2818 | /* If vxge_handle_crit_err task is executing, |
2819 | * wait till it completes. */ | |
2820 | while (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) | |
2821 | msleep(50); | |
2822 | ||
703da5a1 RV |
2823 | if (do_io) { |
2824 | /* Put the vpath back in normal mode */ | |
2825 | vpath_vector = vxge_mBIT(vdev->vpaths[0].device_id); | |
2826 | status = vxge_hw_mgmt_reg_read(vdev->devh, | |
2827 | vxge_hw_mgmt_reg_type_mrpcim, | |
2828 | 0, | |
2829 | (ulong)offsetof( | |
2830 | struct vxge_hw_mrpcim_reg, | |
2831 | rts_mgr_cbasin_cfg), | |
2832 | &val64); | |
2833 | ||
2834 | if (status == VXGE_HW_OK) { | |
2835 | val64 &= ~vpath_vector; | |
2836 | status = vxge_hw_mgmt_reg_write(vdev->devh, | |
2837 | vxge_hw_mgmt_reg_type_mrpcim, | |
2838 | 0, | |
2839 | (ulong)offsetof( | |
2840 | struct vxge_hw_mrpcim_reg, | |
2841 | rts_mgr_cbasin_cfg), | |
2842 | val64); | |
2843 | } | |
2844 | ||
2845 | /* Remove the function 0 from promiscous mode */ | |
2846 | vxge_hw_mgmt_reg_write(vdev->devh, | |
2847 | vxge_hw_mgmt_reg_type_mrpcim, | |
2848 | 0, | |
2849 | (ulong)offsetof(struct vxge_hw_mrpcim_reg, | |
2850 | rxmac_authorize_all_addr), | |
2851 | 0); | |
2852 | ||
2853 | vxge_hw_mgmt_reg_write(vdev->devh, | |
2854 | vxge_hw_mgmt_reg_type_mrpcim, | |
2855 | 0, | |
2856 | (ulong)offsetof(struct vxge_hw_mrpcim_reg, | |
2857 | rxmac_authorize_all_vid), | |
2858 | 0); | |
2859 | ||
2860 | smp_wmb(); | |
2861 | } | |
e7935c96 JM |
2862 | |
2863 | if (vdev->titan1) | |
2864 | del_timer_sync(&vdev->vp_lockup_timer); | |
703da5a1 RV |
2865 | |
2866 | del_timer_sync(&vdev->vp_reset_timer); | |
2867 | ||
4d2a5b40 JM |
2868 | if (do_io) |
2869 | vxge_hw_device_wait_receive_idle(hldev); | |
2870 | ||
2871 | clear_bit(__VXGE_STATE_CARD_UP, &vdev->state); | |
2872 | ||
703da5a1 RV |
2873 | /* Disable napi */ |
2874 | if (vdev->config.intr_type != MSI_X) | |
2875 | napi_disable(&vdev->napi); | |
2876 | else { | |
2877 | for (i = 0; i < vdev->no_of_vpath; i++) | |
2878 | napi_disable(&vdev->vpaths[i].ring.napi); | |
2879 | } | |
2880 | ||
2881 | netif_carrier_off(vdev->ndev); | |
75f5e1c6 | 2882 | netdev_notice(vdev->ndev, "Link Down\n"); |
d03848e0 | 2883 | netif_tx_stop_all_queues(vdev->ndev); |
703da5a1 RV |
2884 | |
2885 | /* Note that at this point xmit() is stopped by upper layer */ | |
2886 | if (do_io) | |
2887 | vxge_hw_device_intr_disable(vdev->devh); | |
2888 | ||
703da5a1 RV |
2889 | vxge_rem_isr(vdev); |
2890 | ||
2891 | vxge_napi_del_all(vdev); | |
2892 | ||
2893 | if (do_io) | |
2894 | vxge_reset_all_vpaths(vdev); | |
2895 | ||
2896 | vxge_close_vpaths(vdev, 0); | |
2897 | ||
2898 | vxge_debug_entryexit(VXGE_TRACE, | |
2899 | "%s: %s:%d Exiting...", dev->name, __func__, __LINE__); | |
2900 | ||
703da5a1 RV |
2901 | clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state); |
2902 | ||
2903 | return 0; | |
2904 | } | |
2905 | ||
2906 | /** | |
2907 | * vxge_close | |
2908 | * @dev: device pointer. | |
2909 | * | |
2910 | * This is the stop entry point of the driver. It needs to undo exactly | |
2911 | * whatever was done by the open entry point, thus it's usually referred to | |
2912 | * as the close function.Among other things this function mainly stops the | |
2913 | * Rx side of the NIC and frees all the Rx buffers in the Rx rings. | |
2914 | * Return value: '0' on success and an appropriate (-)ve integer as | |
2915 | * defined in errno.h file on failure. | |
2916 | */ | |
42821a5b | 2917 | static int |
703da5a1 RV |
2918 | vxge_close(struct net_device *dev) |
2919 | { | |
2920 | do_vxge_close(dev, 1); | |
2921 | return 0; | |
2922 | } | |
2923 | ||
2924 | /** | |
2925 | * vxge_change_mtu | |
2926 | * @dev: net device pointer. | |
2927 | * @new_mtu :the new MTU size for the device. | |
2928 | * | |
2929 | * A driver entry point to change MTU size for the device. Before changing | |
2930 | * the MTU the device must be stopped. | |
2931 | */ | |
2932 | static int vxge_change_mtu(struct net_device *dev, int new_mtu) | |
2933 | { | |
2934 | struct vxgedev *vdev = netdev_priv(dev); | |
2935 | ||
2936 | vxge_debug_entryexit(vdev->level_trace, | |
2937 | "%s:%d", __func__, __LINE__); | |
2938 | if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > VXGE_HW_MAX_MTU)) { | |
2939 | vxge_debug_init(vdev->level_err, | |
2940 | "%s: mtu size is invalid", dev->name); | |
2941 | return -EPERM; | |
2942 | } | |
2943 | ||
2944 | /* check if device is down already */ | |
2945 | if (unlikely(!is_vxge_card_up(vdev))) { | |
2946 | /* just store new value, will use later on open() */ | |
2947 | dev->mtu = new_mtu; | |
2948 | vxge_debug_init(vdev->level_err, | |
2949 | "%s", "device is down on MTU change"); | |
2950 | return 0; | |
2951 | } | |
2952 | ||
2953 | vxge_debug_init(vdev->level_trace, | |
2954 | "trying to apply new MTU %d", new_mtu); | |
2955 | ||
2956 | if (vxge_close(dev)) | |
2957 | return -EIO; | |
2958 | ||
2959 | dev->mtu = new_mtu; | |
2960 | vdev->mtu = new_mtu; | |
2961 | ||
2962 | if (vxge_open(dev)) | |
2963 | return -EIO; | |
2964 | ||
2965 | vxge_debug_init(vdev->level_trace, | |
2966 | "%s: MTU changed to %d", vdev->ndev->name, new_mtu); | |
2967 | ||
2968 | vxge_debug_entryexit(vdev->level_trace, | |
2969 | "%s:%d Exiting...", __func__, __LINE__); | |
2970 | ||
2971 | return 0; | |
2972 | } | |
2973 | ||
2974 | /** | |
dd57f970 | 2975 | * vxge_get_stats64 |
703da5a1 | 2976 | * @dev: pointer to the device structure |
dd57f970 | 2977 | * @stats: pointer to struct rtnl_link_stats64 |
703da5a1 | 2978 | * |
703da5a1 | 2979 | */ |
dd57f970 ED |
2980 | static struct rtnl_link_stats64 * |
2981 | vxge_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats) | |
703da5a1 | 2982 | { |
dd57f970 | 2983 | struct vxgedev *vdev = netdev_priv(dev); |
703da5a1 RV |
2984 | int k; |
2985 | ||
dd57f970 | 2986 | /* net_stats already zeroed by caller */ |
703da5a1 RV |
2987 | for (k = 0; k < vdev->no_of_vpath; k++) { |
2988 | net_stats->rx_packets += vdev->vpaths[k].ring.stats.rx_frms; | |
2989 | net_stats->rx_bytes += vdev->vpaths[k].ring.stats.rx_bytes; | |
2990 | net_stats->rx_errors += vdev->vpaths[k].ring.stats.rx_errors; | |
2991 | net_stats->multicast += vdev->vpaths[k].ring.stats.rx_mcast; | |
2992 | net_stats->rx_dropped += | |
2993 | vdev->vpaths[k].ring.stats.rx_dropped; | |
2994 | ||
2995 | net_stats->tx_packets += vdev->vpaths[k].fifo.stats.tx_frms; | |
2996 | net_stats->tx_bytes += vdev->vpaths[k].fifo.stats.tx_bytes; | |
2997 | net_stats->tx_errors += vdev->vpaths[k].fifo.stats.tx_errors; | |
2998 | } | |
2999 | ||
3000 | return net_stats; | |
3001 | } | |
3002 | ||
b81b3733 JM |
3003 | static enum vxge_hw_status vxge_timestamp_config(struct vxgedev *vdev, |
3004 | int enable) | |
3005 | { | |
3006 | enum vxge_hw_status status; | |
3007 | u64 val64; | |
3008 | ||
3009 | /* Timestamp is passed to the driver via the FCS, therefore we | |
3010 | * must disable the FCS stripping by the adapter. Since this is | |
3011 | * required for the driver to load (due to a hardware bug), | |
3012 | * there is no need to do anything special here. | |
3013 | */ | |
3014 | if (enable) | |
3015 | val64 = VXGE_HW_XMAC_TIMESTAMP_EN | | |
3016 | VXGE_HW_XMAC_TIMESTAMP_USE_LINK_ID(0) | | |
3017 | VXGE_HW_XMAC_TIMESTAMP_INTERVAL(0); | |
3018 | else | |
3019 | val64 = 0; | |
3020 | ||
3021 | status = vxge_hw_mgmt_reg_write(vdev->devh, | |
3022 | vxge_hw_mgmt_reg_type_mrpcim, | |
3023 | 0, | |
3024 | offsetof(struct vxge_hw_mrpcim_reg, | |
3025 | xmac_timestamp), | |
3026 | val64); | |
3027 | vxge_hw_device_flush_io(vdev->devh); | |
3028 | return status; | |
3029 | } | |
3030 | ||
3031 | static int vxge_hwtstamp_ioctl(struct vxgedev *vdev, void __user *data) | |
3032 | { | |
3033 | struct hwtstamp_config config; | |
3034 | enum vxge_hw_status status; | |
3035 | int i; | |
3036 | ||
3037 | if (copy_from_user(&config, data, sizeof(config))) | |
3038 | return -EFAULT; | |
3039 | ||
3040 | /* reserved for future extensions */ | |
3041 | if (config.flags) | |
3042 | return -EINVAL; | |
3043 | ||
3044 | /* Transmit HW Timestamp not supported */ | |
3045 | switch (config.tx_type) { | |
3046 | case HWTSTAMP_TX_OFF: | |
3047 | break; | |
3048 | case HWTSTAMP_TX_ON: | |
3049 | default: | |
3050 | return -ERANGE; | |
3051 | } | |
3052 | ||
3053 | switch (config.rx_filter) { | |
3054 | case HWTSTAMP_FILTER_NONE: | |
3055 | status = vxge_timestamp_config(vdev, 0); | |
3056 | if (status != VXGE_HW_OK) | |
3057 | return -EFAULT; | |
3058 | ||
3059 | vdev->rx_hwts = 0; | |
3060 | config.rx_filter = HWTSTAMP_FILTER_NONE; | |
3061 | break; | |
3062 | ||
3063 | case HWTSTAMP_FILTER_ALL: | |
3064 | case HWTSTAMP_FILTER_SOME: | |
3065 | case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: | |
3066 | case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: | |
3067 | case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: | |
3068 | case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: | |
3069 | case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: | |
3070 | case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: | |
3071 | case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: | |
3072 | case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: | |
3073 | case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: | |
3074 | case HWTSTAMP_FILTER_PTP_V2_EVENT: | |
3075 | case HWTSTAMP_FILTER_PTP_V2_SYNC: | |
3076 | case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: | |
3077 | status = vxge_timestamp_config(vdev, 1); | |
3078 | if (status != VXGE_HW_OK) | |
3079 | return -EFAULT; | |
3080 | ||
3081 | vdev->rx_hwts = 1; | |
3082 | config.rx_filter = HWTSTAMP_FILTER_ALL; | |
3083 | break; | |
3084 | ||
3085 | default: | |
3086 | return -ERANGE; | |
3087 | } | |
3088 | ||
3089 | for (i = 0; i < vdev->no_of_vpath; i++) | |
3090 | vdev->vpaths[i].ring.rx_hwts = vdev->rx_hwts; | |
3091 | ||
3092 | if (copy_to_user(data, &config, sizeof(config))) | |
3093 | return -EFAULT; | |
3094 | ||
3095 | return 0; | |
3096 | } | |
3097 | ||
703da5a1 RV |
3098 | /** |
3099 | * vxge_ioctl | |
3100 | * @dev: Device pointer. | |
3101 | * @ifr: An IOCTL specific structure, that can contain a pointer to | |
3102 | * a proprietary structure used to pass information to the driver. | |
3103 | * @cmd: This is used to distinguish between the different commands that | |
3104 | * can be passed to the IOCTL functions. | |
3105 | * | |
3106 | * Entry point for the Ioctl. | |
3107 | */ | |
3108 | static int vxge_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
3109 | { | |
b81b3733 JM |
3110 | struct vxgedev *vdev = netdev_priv(dev); |
3111 | int ret; | |
3112 | ||
3113 | switch (cmd) { | |
3114 | case SIOCSHWTSTAMP: | |
3115 | ret = vxge_hwtstamp_ioctl(vdev, rq->ifr_data); | |
3116 | if (ret) | |
3117 | return ret; | |
3118 | break; | |
3119 | default: | |
3120 | return -EOPNOTSUPP; | |
3121 | } | |
3122 | ||
3123 | return 0; | |
703da5a1 RV |
3124 | } |
3125 | ||
3126 | /** | |
3127 | * vxge_tx_watchdog | |
3128 | * @dev: pointer to net device structure | |
3129 | * | |
3130 | * Watchdog for transmit side. | |
3131 | * This function is triggered if the Tx Queue is stopped | |
3132 | * for a pre-defined amount of time when the Interface is still up. | |
3133 | */ | |
3134 | static void | |
3135 | vxge_tx_watchdog(struct net_device *dev) | |
3136 | { | |
3137 | struct vxgedev *vdev; | |
3138 | ||
3139 | vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); | |
3140 | ||
5f54cebb | 3141 | vdev = netdev_priv(dev); |
703da5a1 RV |
3142 | |
3143 | vdev->cric_err_event = VXGE_HW_EVENT_RESET_START; | |
3144 | ||
3145 | vxge_reset(vdev); | |
3146 | vxge_debug_entryexit(VXGE_TRACE, | |
3147 | "%s:%d Exiting...", __func__, __LINE__); | |
3148 | } | |
3149 | ||
3150 | /** | |
3151 | * vxge_vlan_rx_register | |
3152 | * @dev: net device pointer. | |
3153 | * @grp: vlan group | |
3154 | * | |
3155 | * Vlan group registration | |
3156 | */ | |
3157 | static void | |
3158 | vxge_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) | |
3159 | { | |
3160 | struct vxgedev *vdev; | |
3161 | struct vxge_vpath *vpath; | |
3162 | int vp; | |
3163 | u64 vid; | |
3164 | enum vxge_hw_status status; | |
3165 | int i; | |
3166 | ||
3167 | vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); | |
3168 | ||
5f54cebb | 3169 | vdev = netdev_priv(dev); |
703da5a1 RV |
3170 | |
3171 | vpath = &vdev->vpaths[0]; | |
3172 | if ((NULL == grp) && (vpath->is_open)) { | |
3173 | /* Get the first vlan */ | |
3174 | status = vxge_hw_vpath_vid_get(vpath->handle, &vid); | |
3175 | ||
3176 | while (status == VXGE_HW_OK) { | |
3177 | ||
3178 | /* Delete this vlan from the vid table */ | |
3179 | for (vp = 0; vp < vdev->no_of_vpath; vp++) { | |
3180 | vpath = &vdev->vpaths[vp]; | |
3181 | if (!vpath->is_open) | |
3182 | continue; | |
3183 | ||
3184 | vxge_hw_vpath_vid_delete(vpath->handle, vid); | |
3185 | } | |
3186 | ||
3187 | /* Get the next vlan to be deleted */ | |
3188 | vpath = &vdev->vpaths[0]; | |
3189 | status = vxge_hw_vpath_vid_get(vpath->handle, &vid); | |
3190 | } | |
3191 | } | |
3192 | ||
3193 | vdev->vlgrp = grp; | |
3194 | ||
3195 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
3196 | if (vdev->vpaths[i].is_configured) | |
3197 | vdev->vpaths[i].ring.vlgrp = grp; | |
3198 | } | |
3199 | ||
3200 | vxge_debug_entryexit(VXGE_TRACE, | |
3201 | "%s:%d Exiting...", __func__, __LINE__); | |
3202 | } | |
3203 | ||
3204 | /** | |
3205 | * vxge_vlan_rx_add_vid | |
3206 | * @dev: net device pointer. | |
3207 | * @vid: vid | |
3208 | * | |
3209 | * Add the vlan id to the devices vlan id table | |
3210 | */ | |
3211 | static void | |
3212 | vxge_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
3213 | { | |
3214 | struct vxgedev *vdev; | |
3215 | struct vxge_vpath *vpath; | |
3216 | int vp_id; | |
3217 | ||
5f54cebb | 3218 | vdev = netdev_priv(dev); |
703da5a1 RV |
3219 | |
3220 | /* Add these vlan to the vid table */ | |
3221 | for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) { | |
3222 | vpath = &vdev->vpaths[vp_id]; | |
3223 | if (!vpath->is_open) | |
3224 | continue; | |
3225 | vxge_hw_vpath_vid_add(vpath->handle, vid); | |
3226 | } | |
3227 | } | |
3228 | ||
3229 | /** | |
3230 | * vxge_vlan_rx_add_vid | |
3231 | * @dev: net device pointer. | |
3232 | * @vid: vid | |
3233 | * | |
3234 | * Remove the vlan id from the device's vlan id table | |
3235 | */ | |
3236 | static void | |
3237 | vxge_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
3238 | { | |
3239 | struct vxgedev *vdev; | |
3240 | struct vxge_vpath *vpath; | |
3241 | int vp_id; | |
3242 | ||
3243 | vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); | |
3244 | ||
5f54cebb | 3245 | vdev = netdev_priv(dev); |
703da5a1 RV |
3246 | |
3247 | vlan_group_set_device(vdev->vlgrp, vid, NULL); | |
3248 | ||
3249 | /* Delete this vlan from the vid table */ | |
3250 | for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) { | |
3251 | vpath = &vdev->vpaths[vp_id]; | |
3252 | if (!vpath->is_open) | |
3253 | continue; | |
3254 | vxge_hw_vpath_vid_delete(vpath->handle, vid); | |
3255 | } | |
3256 | vxge_debug_entryexit(VXGE_TRACE, | |
3257 | "%s:%d Exiting...", __func__, __LINE__); | |
3258 | } | |
3259 | ||
3260 | static const struct net_device_ops vxge_netdev_ops = { | |
3261 | .ndo_open = vxge_open, | |
3262 | .ndo_stop = vxge_close, | |
dd57f970 | 3263 | .ndo_get_stats64 = vxge_get_stats64, |
703da5a1 RV |
3264 | .ndo_start_xmit = vxge_xmit, |
3265 | .ndo_validate_addr = eth_validate_addr, | |
3266 | .ndo_set_multicast_list = vxge_set_multicast, | |
3267 | ||
3268 | .ndo_do_ioctl = vxge_ioctl, | |
3269 | ||
3270 | .ndo_set_mac_address = vxge_set_mac_addr, | |
3271 | .ndo_change_mtu = vxge_change_mtu, | |
3272 | .ndo_vlan_rx_register = vxge_vlan_rx_register, | |
3273 | .ndo_vlan_rx_kill_vid = vxge_vlan_rx_kill_vid, | |
3274 | .ndo_vlan_rx_add_vid = vxge_vlan_rx_add_vid, | |
3275 | ||
3276 | .ndo_tx_timeout = vxge_tx_watchdog, | |
3277 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3278 | .ndo_poll_controller = vxge_netpoll, | |
3279 | #endif | |
3280 | }; | |
3281 | ||
e7935c96 JM |
3282 | static int __devinit vxge_device_revision(struct vxgedev *vdev) |
3283 | { | |
3284 | int ret; | |
3285 | u8 revision; | |
3286 | ||
3287 | ret = pci_read_config_byte(vdev->pdev, PCI_REVISION_ID, &revision); | |
3288 | if (ret) | |
3289 | return -EIO; | |
3290 | ||
3291 | vdev->titan1 = (revision == VXGE_HW_TITAN1_PCI_REVISION); | |
3292 | return 0; | |
3293 | } | |
3294 | ||
42821a5b | 3295 | static int __devinit vxge_device_register(struct __vxge_hw_device *hldev, |
3296 | struct vxge_config *config, | |
3297 | int high_dma, int no_of_vpath, | |
3298 | struct vxgedev **vdev_out) | |
703da5a1 RV |
3299 | { |
3300 | struct net_device *ndev; | |
3301 | enum vxge_hw_status status = VXGE_HW_OK; | |
3302 | struct vxgedev *vdev; | |
98f45da2 | 3303 | int ret = 0, no_of_queue = 1; |
703da5a1 RV |
3304 | u64 stat; |
3305 | ||
3306 | *vdev_out = NULL; | |
d03848e0 | 3307 | if (config->tx_steering_type) |
703da5a1 RV |
3308 | no_of_queue = no_of_vpath; |
3309 | ||
3310 | ndev = alloc_etherdev_mq(sizeof(struct vxgedev), | |
3311 | no_of_queue); | |
3312 | if (ndev == NULL) { | |
3313 | vxge_debug_init( | |
3314 | vxge_hw_device_trace_level_get(hldev), | |
3315 | "%s : device allocation failed", __func__); | |
3316 | ret = -ENODEV; | |
3317 | goto _out0; | |
3318 | } | |
3319 | ||
3320 | vxge_debug_entryexit( | |
3321 | vxge_hw_device_trace_level_get(hldev), | |
3322 | "%s: %s:%d Entering...", | |
3323 | ndev->name, __func__, __LINE__); | |
3324 | ||
3325 | vdev = netdev_priv(ndev); | |
3326 | memset(vdev, 0, sizeof(struct vxgedev)); | |
3327 | ||
3328 | vdev->ndev = ndev; | |
3329 | vdev->devh = hldev; | |
3330 | vdev->pdev = hldev->pdev; | |
3331 | memcpy(&vdev->config, config, sizeof(struct vxge_config)); | |
3332 | vdev->rx_csum = 1; /* Enable Rx CSUM by default. */ | |
b81b3733 | 3333 | vdev->rx_hwts = 0; |
703da5a1 | 3334 | |
e7935c96 JM |
3335 | ret = vxge_device_revision(vdev); |
3336 | if (ret < 0) | |
3337 | goto _out1; | |
3338 | ||
703da5a1 RV |
3339 | SET_NETDEV_DEV(ndev, &vdev->pdev->dev); |
3340 | ||
3341 | ndev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX | | |
3342 | NETIF_F_HW_VLAN_FILTER; | |
3343 | /* Driver entry points */ | |
3344 | ndev->irq = vdev->pdev->irq; | |
3345 | ndev->base_addr = (unsigned long) hldev->bar0; | |
3346 | ||
3347 | ndev->netdev_ops = &vxge_netdev_ops; | |
3348 | ||
3349 | ndev->watchdog_timeo = VXGE_LL_WATCH_DOG_TIMEOUT; | |
3350 | ||
42821a5b | 3351 | vxge_initialize_ethtool_ops(ndev); |
703da5a1 | 3352 | |
47f01db4 JM |
3353 | if (vdev->config.rth_steering != NO_STEERING) { |
3354 | ndev->features |= NETIF_F_RXHASH; | |
3355 | hldev->config.rth_en = VXGE_HW_RTH_ENABLE; | |
3356 | } | |
3357 | ||
703da5a1 RV |
3358 | /* Allocate memory for vpath */ |
3359 | vdev->vpaths = kzalloc((sizeof(struct vxge_vpath)) * | |
3360 | no_of_vpath, GFP_KERNEL); | |
3361 | if (!vdev->vpaths) { | |
3362 | vxge_debug_init(VXGE_ERR, | |
3363 | "%s: vpath memory allocation failed", | |
3364 | vdev->ndev->name); | |
3365 | ret = -ENODEV; | |
3366 | goto _out1; | |
3367 | } | |
3368 | ||
3369 | ndev->features |= NETIF_F_SG; | |
3370 | ||
79032644 | 3371 | ndev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
703da5a1 RV |
3372 | vxge_debug_init(vxge_hw_device_trace_level_get(hldev), |
3373 | "%s : checksuming enabled", __func__); | |
3374 | ||
3375 | if (high_dma) { | |
3376 | ndev->features |= NETIF_F_HIGHDMA; | |
3377 | vxge_debug_init(vxge_hw_device_trace_level_get(hldev), | |
3378 | "%s : using High DMA", __func__); | |
3379 | } | |
3380 | ||
3381 | ndev->features |= NETIF_F_TSO | NETIF_F_TSO6; | |
3382 | ||
3383 | if (vdev->config.gro_enable) | |
3384 | ndev->features |= NETIF_F_GRO; | |
3385 | ||
703da5a1 RV |
3386 | if (register_netdev(ndev)) { |
3387 | vxge_debug_init(vxge_hw_device_trace_level_get(hldev), | |
3388 | "%s: %s : device registration failed!", | |
3389 | ndev->name, __func__); | |
3390 | ret = -ENODEV; | |
3391 | goto _out2; | |
3392 | } | |
3393 | ||
3394 | /* Set the factory defined MAC address initially */ | |
3395 | ndev->addr_len = ETH_ALEN; | |
3396 | ||
3397 | /* Make Link state as off at this point, when the Link change | |
3398 | * interrupt comes the state will be automatically changed to | |
3399 | * the right state. | |
3400 | */ | |
3401 | netif_carrier_off(ndev); | |
3402 | ||
3403 | vxge_debug_init(vxge_hw_device_trace_level_get(hldev), | |
3404 | "%s: Ethernet device registered", | |
3405 | ndev->name); | |
3406 | ||
e8ac1756 | 3407 | hldev->ndev = ndev; |
703da5a1 RV |
3408 | *vdev_out = vdev; |
3409 | ||
3410 | /* Resetting the Device stats */ | |
3411 | status = vxge_hw_mrpcim_stats_access( | |
3412 | hldev, | |
3413 | VXGE_HW_STATS_OP_CLEAR_ALL_STATS, | |
3414 | 0, | |
3415 | 0, | |
3416 | &stat); | |
3417 | ||
3418 | if (status == VXGE_HW_ERR_PRIVILAGED_OPEARATION) | |
3419 | vxge_debug_init( | |
3420 | vxge_hw_device_trace_level_get(hldev), | |
3421 | "%s: device stats clear returns" | |
3422 | "VXGE_HW_ERR_PRIVILAGED_OPEARATION", ndev->name); | |
3423 | ||
3424 | vxge_debug_entryexit(vxge_hw_device_trace_level_get(hldev), | |
3425 | "%s: %s:%d Exiting...", | |
3426 | ndev->name, __func__, __LINE__); | |
3427 | ||
3428 | return ret; | |
3429 | _out2: | |
3430 | kfree(vdev->vpaths); | |
3431 | _out1: | |
3432 | free_netdev(ndev); | |
3433 | _out0: | |
3434 | return ret; | |
3435 | } | |
3436 | ||
3437 | /* | |
3438 | * vxge_device_unregister | |
3439 | * | |
3440 | * This function will unregister and free network device | |
3441 | */ | |
2c91308f | 3442 | static void vxge_device_unregister(struct __vxge_hw_device *hldev) |
703da5a1 RV |
3443 | { |
3444 | struct vxgedev *vdev; | |
3445 | struct net_device *dev; | |
3446 | char buf[IFNAMSIZ]; | |
703da5a1 RV |
3447 | |
3448 | dev = hldev->ndev; | |
3449 | vdev = netdev_priv(dev); | |
703da5a1 | 3450 | |
2c91308f JM |
3451 | vxge_debug_entryexit(vdev->level_trace, "%s: %s:%d", vdev->ndev->name, |
3452 | __func__, __LINE__); | |
3453 | ||
ead5d238 | 3454 | strncpy(buf, dev->name, IFNAMSIZ); |
703da5a1 RV |
3455 | |
3456 | /* in 2.6 will call stop() if device is up */ | |
3457 | unregister_netdev(dev); | |
3458 | ||
3459 | flush_scheduled_work(); | |
3460 | ||
2c91308f JM |
3461 | vxge_debug_init(vdev->level_trace, "%s: ethernet device unregistered", |
3462 | buf); | |
3463 | vxge_debug_entryexit(vdev->level_trace, "%s: %s:%d Exiting...", buf, | |
3464 | __func__, __LINE__); | |
703da5a1 RV |
3465 | } |
3466 | ||
3467 | /* | |
3468 | * vxge_callback_crit_err | |
3469 | * | |
3470 | * This function is called by the alarm handler in interrupt context. | |
3471 | * Driver must analyze it based on the event type. | |
3472 | */ | |
3473 | static void | |
3474 | vxge_callback_crit_err(struct __vxge_hw_device *hldev, | |
3475 | enum vxge_hw_event type, u64 vp_id) | |
3476 | { | |
3477 | struct net_device *dev = hldev->ndev; | |
5f54cebb | 3478 | struct vxgedev *vdev = netdev_priv(dev); |
98f45da2 | 3479 | struct vxge_vpath *vpath = NULL; |
703da5a1 RV |
3480 | int vpath_idx; |
3481 | ||
3482 | vxge_debug_entryexit(vdev->level_trace, | |
3483 | "%s: %s:%d", vdev->ndev->name, __func__, __LINE__); | |
3484 | ||
3485 | /* Note: This event type should be used for device wide | |
3486 | * indications only - Serious errors, Slot freeze and critical errors | |
3487 | */ | |
3488 | vdev->cric_err_event = type; | |
3489 | ||
98f45da2 JM |
3490 | for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) { |
3491 | vpath = &vdev->vpaths[vpath_idx]; | |
3492 | if (vpath->device_id == vp_id) | |
703da5a1 | 3493 | break; |
98f45da2 | 3494 | } |
703da5a1 RV |
3495 | |
3496 | if (!test_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) { | |
3497 | if (type == VXGE_HW_EVENT_SLOT_FREEZE) { | |
3498 | vxge_debug_init(VXGE_ERR, | |
3499 | "%s: Slot is frozen", vdev->ndev->name); | |
3500 | } else if (type == VXGE_HW_EVENT_SERR) { | |
3501 | vxge_debug_init(VXGE_ERR, | |
3502 | "%s: Encountered Serious Error", | |
3503 | vdev->ndev->name); | |
3504 | } else if (type == VXGE_HW_EVENT_CRITICAL_ERR) | |
3505 | vxge_debug_init(VXGE_ERR, | |
3506 | "%s: Encountered Critical Error", | |
3507 | vdev->ndev->name); | |
3508 | } | |
3509 | ||
3510 | if ((type == VXGE_HW_EVENT_SERR) || | |
3511 | (type == VXGE_HW_EVENT_SLOT_FREEZE)) { | |
3512 | if (unlikely(vdev->exec_mode)) | |
3513 | clear_bit(__VXGE_STATE_CARD_UP, &vdev->state); | |
3514 | } else if (type == VXGE_HW_EVENT_CRITICAL_ERR) { | |
3515 | vxge_hw_device_mask_all(hldev); | |
3516 | if (unlikely(vdev->exec_mode)) | |
3517 | clear_bit(__VXGE_STATE_CARD_UP, &vdev->state); | |
3518 | } else if ((type == VXGE_HW_EVENT_FIFO_ERR) || | |
3519 | (type == VXGE_HW_EVENT_VPATH_ERR)) { | |
3520 | ||
3521 | if (unlikely(vdev->exec_mode)) | |
3522 | clear_bit(__VXGE_STATE_CARD_UP, &vdev->state); | |
3523 | else { | |
3524 | /* check if this vpath is already set for reset */ | |
3525 | if (!test_and_set_bit(vpath_idx, &vdev->vp_reset)) { | |
3526 | ||
3527 | /* disable interrupts for this vpath */ | |
3528 | vxge_vpath_intr_disable(vdev, vpath_idx); | |
3529 | ||
3530 | /* stop the queue for this vpath */ | |
98f45da2 | 3531 | netif_tx_stop_queue(vpath->fifo.txq); |
703da5a1 RV |
3532 | } |
3533 | } | |
3534 | } | |
3535 | ||
3536 | vxge_debug_entryexit(vdev->level_trace, | |
3537 | "%s: %s:%d Exiting...", | |
3538 | vdev->ndev->name, __func__, __LINE__); | |
3539 | } | |
3540 | ||
3541 | static void verify_bandwidth(void) | |
3542 | { | |
3543 | int i, band_width, total = 0, equal_priority = 0; | |
3544 | ||
3545 | /* 1. If user enters 0 for some fifo, give equal priority to all */ | |
3546 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { | |
3547 | if (bw_percentage[i] == 0) { | |
3548 | equal_priority = 1; | |
3549 | break; | |
3550 | } | |
3551 | } | |
3552 | ||
3553 | if (!equal_priority) { | |
3554 | /* 2. If sum exceeds 100, give equal priority to all */ | |
3555 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { | |
3556 | if (bw_percentage[i] == 0xFF) | |
3557 | break; | |
3558 | ||
3559 | total += bw_percentage[i]; | |
3560 | if (total > VXGE_HW_VPATH_BANDWIDTH_MAX) { | |
3561 | equal_priority = 1; | |
3562 | break; | |
3563 | } | |
3564 | } | |
3565 | } | |
3566 | ||
3567 | if (!equal_priority) { | |
3568 | /* Is all the bandwidth consumed? */ | |
3569 | if (total < VXGE_HW_VPATH_BANDWIDTH_MAX) { | |
3570 | if (i < VXGE_HW_MAX_VIRTUAL_PATHS) { | |
3571 | /* Split rest of bw equally among next VPs*/ | |
3572 | band_width = | |
3573 | (VXGE_HW_VPATH_BANDWIDTH_MAX - total) / | |
3574 | (VXGE_HW_MAX_VIRTUAL_PATHS - i); | |
3575 | if (band_width < 2) /* min of 2% */ | |
3576 | equal_priority = 1; | |
3577 | else { | |
3578 | for (; i < VXGE_HW_MAX_VIRTUAL_PATHS; | |
3579 | i++) | |
3580 | bw_percentage[i] = | |
3581 | band_width; | |
3582 | } | |
3583 | } | |
3584 | } else if (i < VXGE_HW_MAX_VIRTUAL_PATHS) | |
3585 | equal_priority = 1; | |
3586 | } | |
3587 | ||
3588 | if (equal_priority) { | |
3589 | vxge_debug_init(VXGE_ERR, | |
3590 | "%s: Assigning equal bandwidth to all the vpaths", | |
3591 | VXGE_DRIVER_NAME); | |
3592 | bw_percentage[0] = VXGE_HW_VPATH_BANDWIDTH_MAX / | |
3593 | VXGE_HW_MAX_VIRTUAL_PATHS; | |
3594 | for (i = 1; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) | |
3595 | bw_percentage[i] = bw_percentage[0]; | |
3596 | } | |
703da5a1 RV |
3597 | } |
3598 | ||
3599 | /* | |
3600 | * Vpath configuration | |
3601 | */ | |
3602 | static int __devinit vxge_config_vpaths( | |
3603 | struct vxge_hw_device_config *device_config, | |
3604 | u64 vpath_mask, struct vxge_config *config_param) | |
3605 | { | |
3606 | int i, no_of_vpaths = 0, default_no_vpath = 0, temp; | |
3607 | u32 txdl_size, txdl_per_memblock; | |
3608 | ||
3609 | temp = driver_config->vpath_per_dev; | |
3610 | if ((driver_config->vpath_per_dev == VXGE_USE_DEFAULT) && | |
3611 | (max_config_dev == VXGE_MAX_CONFIG_DEV)) { | |
3612 | /* No more CPU. Return vpath number as zero.*/ | |
3613 | if (driver_config->g_no_cpus == -1) | |
3614 | return 0; | |
3615 | ||
3616 | if (!driver_config->g_no_cpus) | |
3617 | driver_config->g_no_cpus = num_online_cpus(); | |
3618 | ||
3619 | driver_config->vpath_per_dev = driver_config->g_no_cpus >> 1; | |
3620 | if (!driver_config->vpath_per_dev) | |
3621 | driver_config->vpath_per_dev = 1; | |
3622 | ||
3623 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) | |
3624 | if (!vxge_bVALn(vpath_mask, i, 1)) | |
3625 | continue; | |
3626 | else | |
3627 | default_no_vpath++; | |
3628 | if (default_no_vpath < driver_config->vpath_per_dev) | |
3629 | driver_config->vpath_per_dev = default_no_vpath; | |
3630 | ||
3631 | driver_config->g_no_cpus = driver_config->g_no_cpus - | |
3632 | (driver_config->vpath_per_dev * 2); | |
3633 | if (driver_config->g_no_cpus <= 0) | |
3634 | driver_config->g_no_cpus = -1; | |
3635 | } | |
3636 | ||
3637 | if (driver_config->vpath_per_dev == 1) { | |
3638 | vxge_debug_ll_config(VXGE_TRACE, | |
3639 | "%s: Disable tx and rx steering, " | |
3640 | "as single vpath is configured", VXGE_DRIVER_NAME); | |
3641 | config_param->rth_steering = NO_STEERING; | |
3642 | config_param->tx_steering_type = NO_STEERING; | |
3643 | device_config->rth_en = 0; | |
3644 | } | |
3645 | ||
3646 | /* configure bandwidth */ | |
3647 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) | |
3648 | device_config->vp_config[i].min_bandwidth = bw_percentage[i]; | |
3649 | ||
3650 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { | |
3651 | device_config->vp_config[i].vp_id = i; | |
3652 | device_config->vp_config[i].mtu = VXGE_HW_DEFAULT_MTU; | |
3653 | if (no_of_vpaths < driver_config->vpath_per_dev) { | |
3654 | if (!vxge_bVALn(vpath_mask, i, 1)) { | |
3655 | vxge_debug_ll_config(VXGE_TRACE, | |
3656 | "%s: vpath: %d is not available", | |
3657 | VXGE_DRIVER_NAME, i); | |
3658 | continue; | |
3659 | } else { | |
3660 | vxge_debug_ll_config(VXGE_TRACE, | |
3661 | "%s: vpath: %d available", | |
3662 | VXGE_DRIVER_NAME, i); | |
3663 | no_of_vpaths++; | |
3664 | } | |
3665 | } else { | |
3666 | vxge_debug_ll_config(VXGE_TRACE, | |
3667 | "%s: vpath: %d is not configured, " | |
3668 | "max_config_vpath exceeded", | |
3669 | VXGE_DRIVER_NAME, i); | |
3670 | break; | |
3671 | } | |
3672 | ||
3673 | /* Configure Tx fifo's */ | |
3674 | device_config->vp_config[i].fifo.enable = | |
3675 | VXGE_HW_FIFO_ENABLE; | |
3676 | device_config->vp_config[i].fifo.max_frags = | |
5beefb4f | 3677 | MAX_SKB_FRAGS + 1; |
703da5a1 RV |
3678 | device_config->vp_config[i].fifo.memblock_size = |
3679 | VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE; | |
3680 | ||
5beefb4f SH |
3681 | txdl_size = device_config->vp_config[i].fifo.max_frags * |
3682 | sizeof(struct vxge_hw_fifo_txd); | |
703da5a1 RV |
3683 | txdl_per_memblock = VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE / txdl_size; |
3684 | ||
3685 | device_config->vp_config[i].fifo.fifo_blocks = | |
3686 | ((VXGE_DEF_FIFO_LENGTH - 1) / txdl_per_memblock) + 1; | |
3687 | ||
3688 | device_config->vp_config[i].fifo.intr = | |
3689 | VXGE_HW_FIFO_QUEUE_INTR_DISABLE; | |
3690 | ||
3691 | /* Configure tti properties */ | |
3692 | device_config->vp_config[i].tti.intr_enable = | |
3693 | VXGE_HW_TIM_INTR_ENABLE; | |
3694 | ||
3695 | device_config->vp_config[i].tti.btimer_val = | |
3696 | (VXGE_TTI_BTIMER_VAL * 1000) / 272; | |
3697 | ||
3698 | device_config->vp_config[i].tti.timer_ac_en = | |
3699 | VXGE_HW_TIM_TIMER_AC_ENABLE; | |
3700 | ||
3701 | /* For msi-x with napi (each vector | |
3702 | has a handler of its own) - | |
3703 | Set CI to OFF for all vpaths */ | |
3704 | device_config->vp_config[i].tti.timer_ci_en = | |
3705 | VXGE_HW_TIM_TIMER_CI_DISABLE; | |
3706 | ||
3707 | device_config->vp_config[i].tti.timer_ri_en = | |
3708 | VXGE_HW_TIM_TIMER_RI_DISABLE; | |
3709 | ||
3710 | device_config->vp_config[i].tti.util_sel = | |
3711 | VXGE_HW_TIM_UTIL_SEL_LEGACY_TX_NET_UTIL; | |
3712 | ||
3713 | device_config->vp_config[i].tti.ltimer_val = | |
3714 | (VXGE_TTI_LTIMER_VAL * 1000) / 272; | |
3715 | ||
3716 | device_config->vp_config[i].tti.rtimer_val = | |
3717 | (VXGE_TTI_RTIMER_VAL * 1000) / 272; | |
3718 | ||
3719 | device_config->vp_config[i].tti.urange_a = TTI_TX_URANGE_A; | |
3720 | device_config->vp_config[i].tti.urange_b = TTI_TX_URANGE_B; | |
3721 | device_config->vp_config[i].tti.urange_c = TTI_TX_URANGE_C; | |
3722 | device_config->vp_config[i].tti.uec_a = TTI_TX_UFC_A; | |
3723 | device_config->vp_config[i].tti.uec_b = TTI_TX_UFC_B; | |
3724 | device_config->vp_config[i].tti.uec_c = TTI_TX_UFC_C; | |
3725 | device_config->vp_config[i].tti.uec_d = TTI_TX_UFC_D; | |
3726 | ||
3727 | /* Configure Rx rings */ | |
3728 | device_config->vp_config[i].ring.enable = | |
3729 | VXGE_HW_RING_ENABLE; | |
3730 | ||
3731 | device_config->vp_config[i].ring.ring_blocks = | |
3732 | VXGE_HW_DEF_RING_BLOCKS; | |
3733 | device_config->vp_config[i].ring.buffer_mode = | |
3734 | VXGE_HW_RING_RXD_BUFFER_MODE_1; | |
3735 | device_config->vp_config[i].ring.rxds_limit = | |
3736 | VXGE_HW_DEF_RING_RXDS_LIMIT; | |
3737 | device_config->vp_config[i].ring.scatter_mode = | |
3738 | VXGE_HW_RING_SCATTER_MODE_A; | |
3739 | ||
3740 | /* Configure rti properties */ | |
3741 | device_config->vp_config[i].rti.intr_enable = | |
3742 | VXGE_HW_TIM_INTR_ENABLE; | |
3743 | ||
3744 | device_config->vp_config[i].rti.btimer_val = | |
3745 | (VXGE_RTI_BTIMER_VAL * 1000)/272; | |
3746 | ||
3747 | device_config->vp_config[i].rti.timer_ac_en = | |
3748 | VXGE_HW_TIM_TIMER_AC_ENABLE; | |
3749 | ||
3750 | device_config->vp_config[i].rti.timer_ci_en = | |
3751 | VXGE_HW_TIM_TIMER_CI_DISABLE; | |
3752 | ||
3753 | device_config->vp_config[i].rti.timer_ri_en = | |
3754 | VXGE_HW_TIM_TIMER_RI_DISABLE; | |
3755 | ||
3756 | device_config->vp_config[i].rti.util_sel = | |
3757 | VXGE_HW_TIM_UTIL_SEL_LEGACY_RX_NET_UTIL; | |
3758 | ||
3759 | device_config->vp_config[i].rti.urange_a = | |
3760 | RTI_RX_URANGE_A; | |
3761 | device_config->vp_config[i].rti.urange_b = | |
3762 | RTI_RX_URANGE_B; | |
3763 | device_config->vp_config[i].rti.urange_c = | |
3764 | RTI_RX_URANGE_C; | |
3765 | device_config->vp_config[i].rti.uec_a = RTI_RX_UFC_A; | |
3766 | device_config->vp_config[i].rti.uec_b = RTI_RX_UFC_B; | |
3767 | device_config->vp_config[i].rti.uec_c = RTI_RX_UFC_C; | |
3768 | device_config->vp_config[i].rti.uec_d = RTI_RX_UFC_D; | |
3769 | ||
3770 | device_config->vp_config[i].rti.rtimer_val = | |
3771 | (VXGE_RTI_RTIMER_VAL * 1000) / 272; | |
3772 | ||
3773 | device_config->vp_config[i].rti.ltimer_val = | |
3774 | (VXGE_RTI_LTIMER_VAL * 1000) / 272; | |
3775 | ||
3776 | device_config->vp_config[i].rpa_strip_vlan_tag = | |
3777 | vlan_tag_strip; | |
3778 | } | |
3779 | ||
3780 | driver_config->vpath_per_dev = temp; | |
3781 | return no_of_vpaths; | |
3782 | } | |
3783 | ||
3784 | /* initialize device configuratrions */ | |
3785 | static void __devinit vxge_device_config_init( | |
3786 | struct vxge_hw_device_config *device_config, | |
3787 | int *intr_type) | |
3788 | { | |
3789 | /* Used for CQRQ/SRQ. */ | |
3790 | device_config->dma_blockpool_initial = | |
3791 | VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE; | |
3792 | ||
3793 | device_config->dma_blockpool_max = | |
3794 | VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE; | |
3795 | ||
3796 | if (max_mac_vpath > VXGE_MAX_MAC_ADDR_COUNT) | |
3797 | max_mac_vpath = VXGE_MAX_MAC_ADDR_COUNT; | |
3798 | ||
3799 | #ifndef CONFIG_PCI_MSI | |
3800 | vxge_debug_init(VXGE_ERR, | |
3801 | "%s: This Kernel does not support " | |
3802 | "MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME); | |
3803 | *intr_type = INTA; | |
3804 | #endif | |
3805 | ||
3806 | /* Configure whether MSI-X or IRQL. */ | |
3807 | switch (*intr_type) { | |
3808 | case INTA: | |
3809 | device_config->intr_mode = VXGE_HW_INTR_MODE_IRQLINE; | |
3810 | break; | |
3811 | ||
3812 | case MSI_X: | |
3813 | device_config->intr_mode = VXGE_HW_INTR_MODE_MSIX; | |
3814 | break; | |
3815 | } | |
3816 | /* Timer period between device poll */ | |
3817 | device_config->device_poll_millis = VXGE_TIMER_DELAY; | |
3818 | ||
3819 | /* Configure mac based steering. */ | |
3820 | device_config->rts_mac_en = addr_learn_en; | |
3821 | ||
3822 | /* Configure Vpaths */ | |
3823 | device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_MULTI_IT; | |
3824 | ||
3825 | vxge_debug_ll_config(VXGE_TRACE, "%s : Device Config Params ", | |
3826 | __func__); | |
3827 | vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_initial : %d", | |
3828 | device_config->dma_blockpool_initial); | |
3829 | vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_max : %d", | |
3830 | device_config->dma_blockpool_max); | |
3831 | vxge_debug_ll_config(VXGE_TRACE, "intr_mode : %d", | |
3832 | device_config->intr_mode); | |
3833 | vxge_debug_ll_config(VXGE_TRACE, "device_poll_millis : %d", | |
3834 | device_config->device_poll_millis); | |
3835 | vxge_debug_ll_config(VXGE_TRACE, "rts_mac_en : %d", | |
3836 | device_config->rts_mac_en); | |
3837 | vxge_debug_ll_config(VXGE_TRACE, "rth_en : %d", | |
3838 | device_config->rth_en); | |
3839 | vxge_debug_ll_config(VXGE_TRACE, "rth_it_type : %d", | |
3840 | device_config->rth_it_type); | |
3841 | } | |
3842 | ||
3843 | static void __devinit vxge_print_parm(struct vxgedev *vdev, u64 vpath_mask) | |
3844 | { | |
3845 | int i; | |
3846 | ||
3847 | vxge_debug_init(VXGE_TRACE, | |
3848 | "%s: %d Vpath(s) opened", | |
3849 | vdev->ndev->name, vdev->no_of_vpath); | |
3850 | ||
3851 | switch (vdev->config.intr_type) { | |
3852 | case INTA: | |
3853 | vxge_debug_init(VXGE_TRACE, | |
3854 | "%s: Interrupt type INTA", vdev->ndev->name); | |
3855 | break; | |
3856 | ||
3857 | case MSI_X: | |
3858 | vxge_debug_init(VXGE_TRACE, | |
3859 | "%s: Interrupt type MSI-X", vdev->ndev->name); | |
3860 | break; | |
3861 | } | |
3862 | ||
3863 | if (vdev->config.rth_steering) { | |
3864 | vxge_debug_init(VXGE_TRACE, | |
3865 | "%s: RTH steering enabled for TCP_IPV4", | |
3866 | vdev->ndev->name); | |
3867 | } else { | |
3868 | vxge_debug_init(VXGE_TRACE, | |
3869 | "%s: RTH steering disabled", vdev->ndev->name); | |
3870 | } | |
3871 | ||
3872 | switch (vdev->config.tx_steering_type) { | |
3873 | case NO_STEERING: | |
3874 | vxge_debug_init(VXGE_TRACE, | |
3875 | "%s: Tx steering disabled", vdev->ndev->name); | |
3876 | break; | |
3877 | case TX_PRIORITY_STEERING: | |
3878 | vxge_debug_init(VXGE_TRACE, | |
3879 | "%s: Unsupported tx steering option", | |
3880 | vdev->ndev->name); | |
3881 | vxge_debug_init(VXGE_TRACE, | |
3882 | "%s: Tx steering disabled", vdev->ndev->name); | |
3883 | vdev->config.tx_steering_type = 0; | |
3884 | break; | |
3885 | case TX_VLAN_STEERING: | |
3886 | vxge_debug_init(VXGE_TRACE, | |
3887 | "%s: Unsupported tx steering option", | |
3888 | vdev->ndev->name); | |
3889 | vxge_debug_init(VXGE_TRACE, | |
3890 | "%s: Tx steering disabled", vdev->ndev->name); | |
3891 | vdev->config.tx_steering_type = 0; | |
3892 | break; | |
3893 | case TX_MULTIQ_STEERING: | |
3894 | vxge_debug_init(VXGE_TRACE, | |
3895 | "%s: Tx multiqueue steering enabled", | |
3896 | vdev->ndev->name); | |
3897 | break; | |
3898 | case TX_PORT_STEERING: | |
3899 | vxge_debug_init(VXGE_TRACE, | |
3900 | "%s: Tx port steering enabled", | |
3901 | vdev->ndev->name); | |
3902 | break; | |
3903 | default: | |
3904 | vxge_debug_init(VXGE_ERR, | |
3905 | "%s: Unsupported tx steering type", | |
3906 | vdev->ndev->name); | |
3907 | vxge_debug_init(VXGE_TRACE, | |
3908 | "%s: Tx steering disabled", vdev->ndev->name); | |
3909 | vdev->config.tx_steering_type = 0; | |
3910 | } | |
3911 | ||
3912 | if (vdev->config.gro_enable) { | |
3913 | vxge_debug_init(VXGE_ERR, | |
3914 | "%s: Generic receive offload enabled", | |
3915 | vdev->ndev->name); | |
3916 | } else | |
3917 | vxge_debug_init(VXGE_TRACE, | |
3918 | "%s: Generic receive offload disabled", | |
3919 | vdev->ndev->name); | |
3920 | ||
3921 | if (vdev->config.addr_learn_en) | |
3922 | vxge_debug_init(VXGE_TRACE, | |
3923 | "%s: MAC Address learning enabled", vdev->ndev->name); | |
3924 | ||
703da5a1 RV |
3925 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { |
3926 | if (!vxge_bVALn(vpath_mask, i, 1)) | |
3927 | continue; | |
3928 | vxge_debug_ll_config(VXGE_TRACE, | |
3929 | "%s: MTU size - %d", vdev->ndev->name, | |
3930 | ((struct __vxge_hw_device *)(vdev->devh))-> | |
3931 | config.vp_config[i].mtu); | |
3932 | vxge_debug_init(VXGE_TRACE, | |
3933 | "%s: VLAN tag stripping %s", vdev->ndev->name, | |
3934 | ((struct __vxge_hw_device *)(vdev->devh))-> | |
3935 | config.vp_config[i].rpa_strip_vlan_tag | |
3936 | ? "Enabled" : "Disabled"); | |
703da5a1 RV |
3937 | vxge_debug_ll_config(VXGE_TRACE, |
3938 | "%s: Max frags : %d", vdev->ndev->name, | |
3939 | ((struct __vxge_hw_device *)(vdev->devh))-> | |
3940 | config.vp_config[i].fifo.max_frags); | |
3941 | break; | |
3942 | } | |
3943 | } | |
3944 | ||
3945 | #ifdef CONFIG_PM | |
3946 | /** | |
3947 | * vxge_pm_suspend - vxge power management suspend entry point | |
3948 | * | |
3949 | */ | |
3950 | static int vxge_pm_suspend(struct pci_dev *pdev, pm_message_t state) | |
3951 | { | |
3952 | return -ENOSYS; | |
3953 | } | |
3954 | /** | |
3955 | * vxge_pm_resume - vxge power management resume entry point | |
3956 | * | |
3957 | */ | |
3958 | static int vxge_pm_resume(struct pci_dev *pdev) | |
3959 | { | |
3960 | return -ENOSYS; | |
3961 | } | |
3962 | ||
3963 | #endif | |
3964 | ||
3965 | /** | |
3966 | * vxge_io_error_detected - called when PCI error is detected | |
3967 | * @pdev: Pointer to PCI device | |
3968 | * @state: The current pci connection state | |
3969 | * | |
3970 | * This function is called after a PCI bus error affecting | |
3971 | * this device has been detected. | |
3972 | */ | |
3973 | static pci_ers_result_t vxge_io_error_detected(struct pci_dev *pdev, | |
3974 | pci_channel_state_t state) | |
3975 | { | |
d8ee7071 | 3976 | struct __vxge_hw_device *hldev = pci_get_drvdata(pdev); |
703da5a1 RV |
3977 | struct net_device *netdev = hldev->ndev; |
3978 | ||
3979 | netif_device_detach(netdev); | |
3980 | ||
e33b992d DN |
3981 | if (state == pci_channel_io_perm_failure) |
3982 | return PCI_ERS_RESULT_DISCONNECT; | |
3983 | ||
703da5a1 RV |
3984 | if (netif_running(netdev)) { |
3985 | /* Bring down the card, while avoiding PCI I/O */ | |
3986 | do_vxge_close(netdev, 0); | |
3987 | } | |
3988 | ||
3989 | pci_disable_device(pdev); | |
3990 | ||
3991 | return PCI_ERS_RESULT_NEED_RESET; | |
3992 | } | |
3993 | ||
3994 | /** | |
3995 | * vxge_io_slot_reset - called after the pci bus has been reset. | |
3996 | * @pdev: Pointer to PCI device | |
3997 | * | |
3998 | * Restart the card from scratch, as if from a cold-boot. | |
3999 | * At this point, the card has exprienced a hard reset, | |
4000 | * followed by fixups by BIOS, and has its config space | |
4001 | * set up identically to what it was at cold boot. | |
4002 | */ | |
4003 | static pci_ers_result_t vxge_io_slot_reset(struct pci_dev *pdev) | |
4004 | { | |
d8ee7071 | 4005 | struct __vxge_hw_device *hldev = pci_get_drvdata(pdev); |
703da5a1 RV |
4006 | struct net_device *netdev = hldev->ndev; |
4007 | ||
4008 | struct vxgedev *vdev = netdev_priv(netdev); | |
4009 | ||
4010 | if (pci_enable_device(pdev)) { | |
75f5e1c6 | 4011 | netdev_err(netdev, "Cannot re-enable device after reset\n"); |
703da5a1 RV |
4012 | return PCI_ERS_RESULT_DISCONNECT; |
4013 | } | |
4014 | ||
4015 | pci_set_master(pdev); | |
4016 | vxge_reset(vdev); | |
4017 | ||
4018 | return PCI_ERS_RESULT_RECOVERED; | |
4019 | } | |
4020 | ||
4021 | /** | |
4022 | * vxge_io_resume - called when traffic can start flowing again. | |
4023 | * @pdev: Pointer to PCI device | |
4024 | * | |
4025 | * This callback is called when the error recovery driver tells | |
4026 | * us that its OK to resume normal operation. | |
4027 | */ | |
4028 | static void vxge_io_resume(struct pci_dev *pdev) | |
4029 | { | |
d8ee7071 | 4030 | struct __vxge_hw_device *hldev = pci_get_drvdata(pdev); |
703da5a1 RV |
4031 | struct net_device *netdev = hldev->ndev; |
4032 | ||
4033 | if (netif_running(netdev)) { | |
4034 | if (vxge_open(netdev)) { | |
75f5e1c6 JP |
4035 | netdev_err(netdev, |
4036 | "Can't bring device back up after reset\n"); | |
703da5a1 RV |
4037 | return; |
4038 | } | |
4039 | } | |
4040 | ||
4041 | netif_device_attach(netdev); | |
4042 | } | |
4043 | ||
cb27ec60 SH |
4044 | static inline u32 vxge_get_num_vfs(u64 function_mode) |
4045 | { | |
4046 | u32 num_functions = 0; | |
4047 | ||
4048 | switch (function_mode) { | |
4049 | case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION: | |
4050 | case VXGE_HW_FUNCTION_MODE_SRIOV_8: | |
4051 | num_functions = 8; | |
4052 | break; | |
4053 | case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION: | |
4054 | num_functions = 1; | |
4055 | break; | |
4056 | case VXGE_HW_FUNCTION_MODE_SRIOV: | |
4057 | case VXGE_HW_FUNCTION_MODE_MRIOV: | |
4058 | case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_17: | |
4059 | num_functions = 17; | |
4060 | break; | |
4061 | case VXGE_HW_FUNCTION_MODE_SRIOV_4: | |
4062 | num_functions = 4; | |
4063 | break; | |
4064 | case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_2: | |
4065 | num_functions = 2; | |
4066 | break; | |
4067 | case VXGE_HW_FUNCTION_MODE_MRIOV_8: | |
4068 | num_functions = 8; /* TODO */ | |
4069 | break; | |
4070 | } | |
4071 | return num_functions; | |
4072 | } | |
4073 | ||
e8ac1756 JM |
4074 | int vxge_fw_upgrade(struct vxgedev *vdev, char *fw_name, int override) |
4075 | { | |
4076 | struct __vxge_hw_device *hldev = vdev->devh; | |
4077 | u32 maj, min, bld, cmaj, cmin, cbld; | |
4078 | enum vxge_hw_status status; | |
4079 | const struct firmware *fw; | |
4080 | int ret; | |
4081 | ||
4082 | ret = request_firmware(&fw, fw_name, &vdev->pdev->dev); | |
4083 | if (ret) { | |
4084 | vxge_debug_init(VXGE_ERR, "%s: Firmware file '%s' not found", | |
4085 | VXGE_DRIVER_NAME, fw_name); | |
4086 | goto out; | |
4087 | } | |
4088 | ||
4089 | /* Load the new firmware onto the adapter */ | |
4090 | status = vxge_update_fw_image(hldev, fw->data, fw->size); | |
4091 | if (status != VXGE_HW_OK) { | |
4092 | vxge_debug_init(VXGE_ERR, | |
4093 | "%s: FW image download to adapter failed '%s'.", | |
4094 | VXGE_DRIVER_NAME, fw_name); | |
4095 | ret = -EIO; | |
4096 | goto out; | |
4097 | } | |
4098 | ||
4099 | /* Read the version of the new firmware */ | |
4100 | status = vxge_hw_upgrade_read_version(hldev, &maj, &min, &bld); | |
4101 | if (status != VXGE_HW_OK) { | |
4102 | vxge_debug_init(VXGE_ERR, | |
4103 | "%s: Upgrade read version failed '%s'.", | |
4104 | VXGE_DRIVER_NAME, fw_name); | |
4105 | ret = -EIO; | |
4106 | goto out; | |
4107 | } | |
4108 | ||
4109 | cmaj = vdev->config.device_hw_info.fw_version.major; | |
4110 | cmin = vdev->config.device_hw_info.fw_version.minor; | |
4111 | cbld = vdev->config.device_hw_info.fw_version.build; | |
4112 | /* It's possible the version in /lib/firmware is not the latest version. | |
4113 | * If so, we could get into a loop of trying to upgrade to the latest | |
4114 | * and flashing the older version. | |
4115 | */ | |
4116 | if (VXGE_FW_VER(maj, min, bld) == VXGE_FW_VER(cmaj, cmin, cbld) && | |
4117 | !override) { | |
4118 | ret = -EINVAL; | |
4119 | goto out; | |
4120 | } | |
4121 | ||
4122 | printk(KERN_NOTICE "Upgrade to firmware version %d.%d.%d commencing\n", | |
4123 | maj, min, bld); | |
4124 | ||
4125 | /* Flash the adapter with the new firmware */ | |
4126 | status = vxge_hw_flash_fw(hldev); | |
4127 | if (status != VXGE_HW_OK) { | |
4128 | vxge_debug_init(VXGE_ERR, "%s: Upgrade commit failed '%s'.", | |
4129 | VXGE_DRIVER_NAME, fw_name); | |
4130 | ret = -EIO; | |
4131 | goto out; | |
4132 | } | |
4133 | ||
4134 | printk(KERN_NOTICE "Upgrade of firmware successful! Adapter must be " | |
4135 | "hard reset before using, thus requiring a system reboot or a " | |
4136 | "hotplug event.\n"); | |
4137 | ||
4138 | out: | |
4139 | return ret; | |
4140 | } | |
4141 | ||
4142 | static int vxge_probe_fw_update(struct vxgedev *vdev) | |
4143 | { | |
4144 | u32 maj, min, bld; | |
4145 | int ret, gpxe = 0; | |
4146 | char *fw_name; | |
4147 | ||
4148 | maj = vdev->config.device_hw_info.fw_version.major; | |
4149 | min = vdev->config.device_hw_info.fw_version.minor; | |
4150 | bld = vdev->config.device_hw_info.fw_version.build; | |
4151 | ||
4152 | if (VXGE_FW_VER(maj, min, bld) == VXGE_CERT_FW_VER) | |
4153 | return 0; | |
4154 | ||
4155 | /* Ignore the build number when determining if the current firmware is | |
4156 | * "too new" to load the driver | |
4157 | */ | |
4158 | if (VXGE_FW_VER(maj, min, 0) > VXGE_CERT_FW_VER) { | |
4159 | vxge_debug_init(VXGE_ERR, "%s: Firmware newer than last known " | |
4160 | "version, unable to load driver\n", | |
4161 | VXGE_DRIVER_NAME); | |
4162 | return -EINVAL; | |
4163 | } | |
4164 | ||
4165 | /* Firmware 1.4.4 and older cannot be upgraded, and is too ancient to | |
4166 | * work with this driver. | |
4167 | */ | |
4168 | if (VXGE_FW_VER(maj, min, bld) <= VXGE_FW_DEAD_VER) { | |
4169 | vxge_debug_init(VXGE_ERR, "%s: Firmware %d.%d.%d cannot be " | |
4170 | "upgraded\n", VXGE_DRIVER_NAME, maj, min, bld); | |
4171 | return -EINVAL; | |
4172 | } | |
4173 | ||
4174 | /* If file not specified, determine gPXE or not */ | |
4175 | if (VXGE_FW_VER(maj, min, bld) >= VXGE_EPROM_FW_VER) { | |
4176 | int i; | |
4177 | for (i = 0; i < VXGE_HW_MAX_ROM_IMAGES; i++) | |
4178 | if (vdev->devh->eprom_versions[i]) { | |
4179 | gpxe = 1; | |
4180 | break; | |
4181 | } | |
4182 | } | |
4183 | if (gpxe) | |
4184 | fw_name = "vxge/X3fw-pxe.ncf"; | |
4185 | else | |
4186 | fw_name = "vxge/X3fw.ncf"; | |
4187 | ||
4188 | ret = vxge_fw_upgrade(vdev, fw_name, 0); | |
4189 | /* -EINVAL and -ENOENT are not fatal errors for flashing firmware on | |
4190 | * probe, so ignore them | |
4191 | */ | |
4192 | if (ret != -EINVAL && ret != -ENOENT) | |
4193 | return -EIO; | |
4194 | else | |
4195 | ret = 0; | |
4196 | ||
4197 | if (VXGE_FW_VER(VXGE_CERT_FW_VER_MAJOR, VXGE_CERT_FW_VER_MINOR, 0) > | |
4198 | VXGE_FW_VER(maj, min, 0)) { | |
4199 | vxge_debug_init(VXGE_ERR, "%s: Firmware %d.%d.%d is too old to" | |
4200 | " be used with this driver.\n" | |
4201 | "Please get the latest version from " | |
4202 | "ftp://ftp.s2io.com/pub/X3100-Drivers/FIRMWARE", | |
4203 | VXGE_DRIVER_NAME, maj, min, bld); | |
4204 | return -EINVAL; | |
4205 | } | |
4206 | ||
4207 | return ret; | |
4208 | } | |
4209 | ||
703da5a1 RV |
4210 | /** |
4211 | * vxge_probe | |
4212 | * @pdev : structure containing the PCI related information of the device. | |
4213 | * @pre: List of PCI devices supported by the driver listed in vxge_id_table. | |
4214 | * Description: | |
4215 | * This function is called when a new PCI device gets detected and initializes | |
4216 | * it. | |
4217 | * Return value: | |
4218 | * returns 0 on success and negative on failure. | |
4219 | * | |
4220 | */ | |
4221 | static int __devinit | |
4222 | vxge_probe(struct pci_dev *pdev, const struct pci_device_id *pre) | |
4223 | { | |
2c91308f | 4224 | struct __vxge_hw_device *hldev; |
703da5a1 RV |
4225 | enum vxge_hw_status status; |
4226 | int ret; | |
4227 | int high_dma = 0; | |
4228 | u64 vpath_mask = 0; | |
4229 | struct vxgedev *vdev; | |
7dad171c | 4230 | struct vxge_config *ll_config = NULL; |
703da5a1 RV |
4231 | struct vxge_hw_device_config *device_config = NULL; |
4232 | struct vxge_hw_device_attr attr; | |
4233 | int i, j, no_of_vpath = 0, max_vpath_supported = 0; | |
4234 | u8 *macaddr; | |
4235 | struct vxge_mac_addrs *entry; | |
4236 | static int bus = -1, device = -1; | |
cb27ec60 | 4237 | u32 host_type; |
703da5a1 | 4238 | u8 new_device = 0; |
cb27ec60 SH |
4239 | enum vxge_hw_status is_privileged; |
4240 | u32 function_mode; | |
4241 | u32 num_vfs = 0; | |
703da5a1 RV |
4242 | |
4243 | vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); | |
4244 | attr.pdev = pdev; | |
4245 | ||
cb27ec60 SH |
4246 | /* In SRIOV-17 mode, functions of the same adapter |
4247 | * can be deployed on different buses */ | |
4248 | if ((!pdev->is_virtfn) && ((bus != pdev->bus->number) || | |
4249 | (device != PCI_SLOT(pdev->devfn)))) | |
703da5a1 RV |
4250 | new_device = 1; |
4251 | ||
4252 | bus = pdev->bus->number; | |
4253 | device = PCI_SLOT(pdev->devfn); | |
4254 | ||
4255 | if (new_device) { | |
4256 | if (driver_config->config_dev_cnt && | |
4257 | (driver_config->config_dev_cnt != | |
4258 | driver_config->total_dev_cnt)) | |
4259 | vxge_debug_init(VXGE_ERR, | |
4260 | "%s: Configured %d of %d devices", | |
4261 | VXGE_DRIVER_NAME, | |
4262 | driver_config->config_dev_cnt, | |
4263 | driver_config->total_dev_cnt); | |
4264 | driver_config->config_dev_cnt = 0; | |
4265 | driver_config->total_dev_cnt = 0; | |
703da5a1 | 4266 | } |
9002397e SH |
4267 | /* Now making the CPU based no of vpath calculation |
4268 | * applicable for individual functions as well. | |
4269 | */ | |
4270 | driver_config->g_no_cpus = 0; | |
657205bd SH |
4271 | driver_config->vpath_per_dev = max_config_vpath; |
4272 | ||
703da5a1 RV |
4273 | driver_config->total_dev_cnt++; |
4274 | if (++driver_config->config_dev_cnt > max_config_dev) { | |
4275 | ret = 0; | |
4276 | goto _exit0; | |
4277 | } | |
4278 | ||
4279 | device_config = kzalloc(sizeof(struct vxge_hw_device_config), | |
4280 | GFP_KERNEL); | |
4281 | if (!device_config) { | |
4282 | ret = -ENOMEM; | |
4283 | vxge_debug_init(VXGE_ERR, | |
4284 | "device_config : malloc failed %s %d", | |
4285 | __FILE__, __LINE__); | |
4286 | goto _exit0; | |
4287 | } | |
4288 | ||
7dad171c PB |
4289 | ll_config = kzalloc(sizeof(*ll_config), GFP_KERNEL); |
4290 | if (!ll_config) { | |
4291 | ret = -ENOMEM; | |
4292 | vxge_debug_init(VXGE_ERR, | |
4293 | "ll_config : malloc failed %s %d", | |
4294 | __FILE__, __LINE__); | |
4295 | goto _exit0; | |
4296 | } | |
4297 | ll_config->tx_steering_type = TX_MULTIQ_STEERING; | |
4298 | ll_config->intr_type = MSI_X; | |
4299 | ll_config->napi_weight = NEW_NAPI_WEIGHT; | |
4300 | ll_config->rth_steering = RTH_STEERING; | |
703da5a1 RV |
4301 | |
4302 | /* get the default configuration parameters */ | |
4303 | vxge_hw_device_config_default_get(device_config); | |
4304 | ||
4305 | /* initialize configuration parameters */ | |
7dad171c | 4306 | vxge_device_config_init(device_config, &ll_config->intr_type); |
703da5a1 RV |
4307 | |
4308 | ret = pci_enable_device(pdev); | |
4309 | if (ret) { | |
4310 | vxge_debug_init(VXGE_ERR, | |
4311 | "%s : can not enable PCI device", __func__); | |
4312 | goto _exit0; | |
4313 | } | |
4314 | ||
b3837cec | 4315 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { |
703da5a1 RV |
4316 | vxge_debug_ll_config(VXGE_TRACE, |
4317 | "%s : using 64bit DMA", __func__); | |
4318 | ||
4319 | high_dma = 1; | |
4320 | ||
4321 | if (pci_set_consistent_dma_mask(pdev, | |
b3837cec | 4322 | DMA_BIT_MASK(64))) { |
703da5a1 RV |
4323 | vxge_debug_init(VXGE_ERR, |
4324 | "%s : unable to obtain 64bit DMA for " | |
4325 | "consistent allocations", __func__); | |
4326 | ret = -ENOMEM; | |
4327 | goto _exit1; | |
4328 | } | |
b3837cec | 4329 | } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) { |
703da5a1 RV |
4330 | vxge_debug_ll_config(VXGE_TRACE, |
4331 | "%s : using 32bit DMA", __func__); | |
4332 | } else { | |
4333 | ret = -ENOMEM; | |
4334 | goto _exit1; | |
4335 | } | |
4336 | ||
4337 | if (pci_request_regions(pdev, VXGE_DRIVER_NAME)) { | |
4338 | vxge_debug_init(VXGE_ERR, | |
4339 | "%s : request regions failed", __func__); | |
4340 | ret = -ENODEV; | |
4341 | goto _exit1; | |
4342 | } | |
4343 | ||
4344 | pci_set_master(pdev); | |
4345 | ||
4346 | attr.bar0 = pci_ioremap_bar(pdev, 0); | |
4347 | if (!attr.bar0) { | |
4348 | vxge_debug_init(VXGE_ERR, | |
4349 | "%s : cannot remap io memory bar0", __func__); | |
4350 | ret = -ENODEV; | |
4351 | goto _exit2; | |
4352 | } | |
4353 | vxge_debug_ll_config(VXGE_TRACE, | |
4354 | "pci ioremap bar0: %p:0x%llx", | |
4355 | attr.bar0, | |
4356 | (unsigned long long)pci_resource_start(pdev, 0)); | |
4357 | ||
703da5a1 | 4358 | status = vxge_hw_device_hw_info_get(attr.bar0, |
7dad171c | 4359 | &ll_config->device_hw_info); |
703da5a1 RV |
4360 | if (status != VXGE_HW_OK) { |
4361 | vxge_debug_init(VXGE_ERR, | |
4362 | "%s: Reading of hardware info failed." | |
4363 | "Please try upgrading the firmware.", VXGE_DRIVER_NAME); | |
4364 | ret = -EINVAL; | |
7975d1ee | 4365 | goto _exit3; |
703da5a1 RV |
4366 | } |
4367 | ||
7dad171c | 4368 | vpath_mask = ll_config->device_hw_info.vpath_mask; |
703da5a1 RV |
4369 | if (vpath_mask == 0) { |
4370 | vxge_debug_ll_config(VXGE_TRACE, | |
4371 | "%s: No vpaths available in device", VXGE_DRIVER_NAME); | |
4372 | ret = -EINVAL; | |
7975d1ee | 4373 | goto _exit3; |
703da5a1 RV |
4374 | } |
4375 | ||
4376 | vxge_debug_ll_config(VXGE_TRACE, | |
4377 | "%s:%d Vpath mask = %llx", __func__, __LINE__, | |
4378 | (unsigned long long)vpath_mask); | |
4379 | ||
7dad171c PB |
4380 | function_mode = ll_config->device_hw_info.function_mode; |
4381 | host_type = ll_config->device_hw_info.host_type; | |
cb27ec60 | 4382 | is_privileged = __vxge_hw_device_is_privilaged(host_type, |
7dad171c | 4383 | ll_config->device_hw_info.func_id); |
cb27ec60 | 4384 | |
703da5a1 RV |
4385 | /* Check how many vpaths are available */ |
4386 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { | |
4387 | if (!((vpath_mask) & vxge_mBIT(i))) | |
4388 | continue; | |
4389 | max_vpath_supported++; | |
4390 | } | |
4391 | ||
cb27ec60 SH |
4392 | if (new_device) |
4393 | num_vfs = vxge_get_num_vfs(function_mode) - 1; | |
4394 | ||
5dbc9011 | 4395 | /* Enable SRIOV mode, if firmware has SRIOV support and if it is a PF */ |
cb27ec60 | 4396 | if (is_sriov(function_mode) && (max_config_dev > 1) && |
7dad171c | 4397 | (ll_config->intr_type != INTA) && |
cb27ec60 SH |
4398 | (is_privileged == VXGE_HW_OK)) { |
4399 | ret = pci_enable_sriov(pdev, ((max_config_dev - 1) < num_vfs) | |
4400 | ? (max_config_dev - 1) : num_vfs); | |
4401 | if (ret) | |
4402 | vxge_debug_ll_config(VXGE_ERR, | |
4403 | "Failed in enabling SRIOV mode: %d\n", ret); | |
5dbc9011 SS |
4404 | } |
4405 | ||
703da5a1 RV |
4406 | /* |
4407 | * Configure vpaths and get driver configured number of vpaths | |
4408 | * which is less than or equal to the maximum vpaths per function. | |
4409 | */ | |
7dad171c | 4410 | no_of_vpath = vxge_config_vpaths(device_config, vpath_mask, ll_config); |
703da5a1 RV |
4411 | if (!no_of_vpath) { |
4412 | vxge_debug_ll_config(VXGE_ERR, | |
4413 | "%s: No more vpaths to configure", VXGE_DRIVER_NAME); | |
4414 | ret = 0; | |
7975d1ee | 4415 | goto _exit3; |
703da5a1 RV |
4416 | } |
4417 | ||
4418 | /* Setting driver callbacks */ | |
4419 | attr.uld_callbacks.link_up = vxge_callback_link_up; | |
4420 | attr.uld_callbacks.link_down = vxge_callback_link_down; | |
4421 | attr.uld_callbacks.crit_err = vxge_callback_crit_err; | |
4422 | ||
4423 | status = vxge_hw_device_initialize(&hldev, &attr, device_config); | |
4424 | if (status != VXGE_HW_OK) { | |
4425 | vxge_debug_init(VXGE_ERR, | |
4426 | "Failed to initialize device (%d)", status); | |
4427 | ret = -EINVAL; | |
7975d1ee | 4428 | goto _exit3; |
703da5a1 RV |
4429 | } |
4430 | ||
e8ac1756 JM |
4431 | if (VXGE_FW_VER(ll_config->device_hw_info.fw_version.major, |
4432 | ll_config->device_hw_info.fw_version.minor, | |
4433 | ll_config->device_hw_info.fw_version.build) >= | |
4434 | VXGE_EPROM_FW_VER) { | |
4435 | struct eprom_image img[VXGE_HW_MAX_ROM_IMAGES]; | |
4436 | ||
4437 | status = vxge_hw_vpath_eprom_img_ver_get(hldev, img); | |
4438 | if (status != VXGE_HW_OK) { | |
4439 | vxge_debug_init(VXGE_ERR, "%s: Reading of EPROM failed", | |
4440 | VXGE_DRIVER_NAME); | |
4441 | /* This is a non-fatal error, continue */ | |
4442 | } | |
4443 | ||
4444 | for (i = 0; i < VXGE_HW_MAX_ROM_IMAGES; i++) { | |
4445 | hldev->eprom_versions[i] = img[i].version; | |
4446 | if (!img[i].is_valid) | |
4447 | break; | |
4448 | vxge_debug_init(VXGE_TRACE, "%s: EPROM %d, version " | |
4449 | "%d.%d.%d.%d\n", VXGE_DRIVER_NAME, i, | |
4450 | VXGE_EPROM_IMG_MAJOR(img[i].version), | |
4451 | VXGE_EPROM_IMG_MINOR(img[i].version), | |
4452 | VXGE_EPROM_IMG_FIX(img[i].version), | |
4453 | VXGE_EPROM_IMG_BUILD(img[i].version)); | |
4454 | } | |
4455 | } | |
4456 | ||
fa41fd10 | 4457 | /* if FCS stripping is not disabled in MAC fail driver load */ |
b81b3733 JM |
4458 | status = vxge_hw_vpath_strip_fcs_check(hldev, vpath_mask); |
4459 | if (status != VXGE_HW_OK) { | |
4460 | vxge_debug_init(VXGE_ERR, "%s: FCS stripping is enabled in MAC" | |
4461 | " failing driver load", VXGE_DRIVER_NAME); | |
fa41fd10 SH |
4462 | ret = -EINVAL; |
4463 | goto _exit4; | |
4464 | } | |
4465 | ||
703da5a1 RV |
4466 | vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL); |
4467 | ||
4468 | /* set private device info */ | |
4469 | pci_set_drvdata(pdev, hldev); | |
4470 | ||
7dad171c PB |
4471 | ll_config->gro_enable = VXGE_GRO_ALWAYS_AGGREGATE; |
4472 | ll_config->fifo_indicate_max_pkts = VXGE_FIFO_INDICATE_MAX_PKTS; | |
4473 | ll_config->addr_learn_en = addr_learn_en; | |
4474 | ll_config->rth_algorithm = RTH_ALG_JENKINS; | |
47f01db4 JM |
4475 | ll_config->rth_hash_type_tcpipv4 = 1; |
4476 | ll_config->rth_hash_type_ipv4 = 0; | |
4477 | ll_config->rth_hash_type_tcpipv6 = 0; | |
4478 | ll_config->rth_hash_type_ipv6 = 0; | |
4479 | ll_config->rth_hash_type_tcpipv6ex = 0; | |
4480 | ll_config->rth_hash_type_ipv6ex = 0; | |
7dad171c PB |
4481 | ll_config->rth_bkt_sz = RTH_BUCKET_SIZE; |
4482 | ll_config->tx_pause_enable = VXGE_PAUSE_CTRL_ENABLE; | |
4483 | ll_config->rx_pause_enable = VXGE_PAUSE_CTRL_ENABLE; | |
4484 | ||
e8ac1756 JM |
4485 | ret = vxge_device_register(hldev, ll_config, high_dma, no_of_vpath, |
4486 | &vdev); | |
4487 | if (ret) { | |
703da5a1 | 4488 | ret = -EINVAL; |
7975d1ee | 4489 | goto _exit4; |
703da5a1 RV |
4490 | } |
4491 | ||
e8ac1756 JM |
4492 | ret = vxge_probe_fw_update(vdev); |
4493 | if (ret) | |
4494 | goto _exit5; | |
4495 | ||
703da5a1 RV |
4496 | vxge_hw_device_debug_set(hldev, VXGE_TRACE, VXGE_COMPONENT_LL); |
4497 | VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev), | |
4498 | vxge_hw_device_trace_level_get(hldev)); | |
4499 | ||
4500 | /* set private HW device info */ | |
703da5a1 RV |
4501 | vdev->mtu = VXGE_HW_DEFAULT_MTU; |
4502 | vdev->bar0 = attr.bar0; | |
703da5a1 RV |
4503 | vdev->max_vpath_supported = max_vpath_supported; |
4504 | vdev->no_of_vpath = no_of_vpath; | |
4505 | ||
4506 | /* Virtual Path count */ | |
4507 | for (i = 0, j = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { | |
4508 | if (!vxge_bVALn(vpath_mask, i, 1)) | |
4509 | continue; | |
4510 | if (j >= vdev->no_of_vpath) | |
4511 | break; | |
4512 | ||
4513 | vdev->vpaths[j].is_configured = 1; | |
4514 | vdev->vpaths[j].device_id = i; | |
703da5a1 RV |
4515 | vdev->vpaths[j].ring.driver_id = j; |
4516 | vdev->vpaths[j].vdev = vdev; | |
4517 | vdev->vpaths[j].max_mac_addr_cnt = max_mac_vpath; | |
4518 | memcpy((u8 *)vdev->vpaths[j].macaddr, | |
7dad171c | 4519 | ll_config->device_hw_info.mac_addrs[i], |
703da5a1 RV |
4520 | ETH_ALEN); |
4521 | ||
4522 | /* Initialize the mac address list header */ | |
4523 | INIT_LIST_HEAD(&vdev->vpaths[j].mac_addr_list); | |
4524 | ||
4525 | vdev->vpaths[j].mac_addr_cnt = 0; | |
4526 | vdev->vpaths[j].mcast_addr_cnt = 0; | |
4527 | j++; | |
4528 | } | |
4529 | vdev->exec_mode = VXGE_EXEC_MODE_DISABLE; | |
4530 | vdev->max_config_port = max_config_port; | |
4531 | ||
4532 | vdev->vlan_tag_strip = vlan_tag_strip; | |
4533 | ||
4534 | /* map the hashing selector table to the configured vpaths */ | |
4535 | for (i = 0; i < vdev->no_of_vpath; i++) | |
4536 | vdev->vpath_selector[i] = vpath_selector[i]; | |
4537 | ||
4538 | macaddr = (u8 *)vdev->vpaths[0].macaddr; | |
4539 | ||
7dad171c PB |
4540 | ll_config->device_hw_info.serial_number[VXGE_HW_INFO_LEN - 1] = '\0'; |
4541 | ll_config->device_hw_info.product_desc[VXGE_HW_INFO_LEN - 1] = '\0'; | |
4542 | ll_config->device_hw_info.part_number[VXGE_HW_INFO_LEN - 1] = '\0'; | |
703da5a1 RV |
4543 | |
4544 | vxge_debug_init(VXGE_TRACE, "%s: SERIAL NUMBER: %s", | |
7dad171c | 4545 | vdev->ndev->name, ll_config->device_hw_info.serial_number); |
703da5a1 RV |
4546 | |
4547 | vxge_debug_init(VXGE_TRACE, "%s: PART NUMBER: %s", | |
7dad171c | 4548 | vdev->ndev->name, ll_config->device_hw_info.part_number); |
703da5a1 RV |
4549 | |
4550 | vxge_debug_init(VXGE_TRACE, "%s: Neterion %s Server Adapter", | |
7dad171c | 4551 | vdev->ndev->name, ll_config->device_hw_info.product_desc); |
703da5a1 | 4552 | |
bf54e736 | 4553 | vxge_debug_init(VXGE_TRACE, "%s: MAC ADDR: %pM", |
4554 | vdev->ndev->name, macaddr); | |
703da5a1 RV |
4555 | |
4556 | vxge_debug_init(VXGE_TRACE, "%s: Link Width x%d", | |
4557 | vdev->ndev->name, vxge_hw_device_link_width_get(hldev)); | |
4558 | ||
4559 | vxge_debug_init(VXGE_TRACE, | |
4560 | "%s: Firmware version : %s Date : %s", vdev->ndev->name, | |
7dad171c PB |
4561 | ll_config->device_hw_info.fw_version.version, |
4562 | ll_config->device_hw_info.fw_date.date); | |
703da5a1 | 4563 | |
0a25bdc6 | 4564 | if (new_device) { |
7dad171c | 4565 | switch (ll_config->device_hw_info.function_mode) { |
0a25bdc6 SH |
4566 | case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION: |
4567 | vxge_debug_init(VXGE_TRACE, | |
4568 | "%s: Single Function Mode Enabled", vdev->ndev->name); | |
4569 | break; | |
4570 | case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION: | |
4571 | vxge_debug_init(VXGE_TRACE, | |
4572 | "%s: Multi Function Mode Enabled", vdev->ndev->name); | |
4573 | break; | |
4574 | case VXGE_HW_FUNCTION_MODE_SRIOV: | |
4575 | vxge_debug_init(VXGE_TRACE, | |
4576 | "%s: Single Root IOV Mode Enabled", vdev->ndev->name); | |
4577 | break; | |
4578 | case VXGE_HW_FUNCTION_MODE_MRIOV: | |
4579 | vxge_debug_init(VXGE_TRACE, | |
4580 | "%s: Multi Root IOV Mode Enabled", vdev->ndev->name); | |
4581 | break; | |
4582 | } | |
4583 | } | |
4584 | ||
703da5a1 RV |
4585 | vxge_print_parm(vdev, vpath_mask); |
4586 | ||
4587 | /* Store the fw version for ethttool option */ | |
7dad171c | 4588 | strcpy(vdev->fw_version, ll_config->device_hw_info.fw_version.version); |
703da5a1 RV |
4589 | memcpy(vdev->ndev->dev_addr, (u8 *)vdev->vpaths[0].macaddr, ETH_ALEN); |
4590 | memcpy(vdev->ndev->perm_addr, vdev->ndev->dev_addr, ETH_ALEN); | |
4591 | ||
4592 | /* Copy the station mac address to the list */ | |
4593 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
e80be0b0 | 4594 | entry = kzalloc(sizeof(struct vxge_mac_addrs), GFP_KERNEL); |
703da5a1 RV |
4595 | if (NULL == entry) { |
4596 | vxge_debug_init(VXGE_ERR, | |
4597 | "%s: mac_addr_list : memory allocation failed", | |
4598 | vdev->ndev->name); | |
4599 | ret = -EPERM; | |
e8ac1756 | 4600 | goto _exit6; |
703da5a1 RV |
4601 | } |
4602 | macaddr = (u8 *)&entry->macaddr; | |
4603 | memcpy(macaddr, vdev->ndev->dev_addr, ETH_ALEN); | |
4604 | list_add(&entry->item, &vdev->vpaths[i].mac_addr_list); | |
4605 | vdev->vpaths[i].mac_addr_cnt = 1; | |
4606 | } | |
4607 | ||
914d0d71 | 4608 | kfree(device_config); |
eb5f10c2 SH |
4609 | |
4610 | /* | |
4611 | * INTA is shared in multi-function mode. This is unlike the INTA | |
4612 | * implementation in MR mode, where each VH has its own INTA message. | |
4613 | * - INTA is masked (disabled) as long as at least one function sets | |
4614 | * its TITAN_MASK_ALL_INT.ALARM bit. | |
4615 | * - INTA is unmasked (enabled) when all enabled functions have cleared | |
4616 | * their own TITAN_MASK_ALL_INT.ALARM bit. | |
4617 | * The TITAN_MASK_ALL_INT ALARM & TRAFFIC bits are cleared on power up. | |
4618 | * Though this driver leaves the top level interrupts unmasked while | |
4619 | * leaving the required module interrupt bits masked on exit, there | |
4620 | * could be a rougue driver around that does not follow this procedure | |
4621 | * resulting in a failure to generate interrupts. The following code is | |
4622 | * present to prevent such a failure. | |
4623 | */ | |
4624 | ||
7dad171c | 4625 | if (ll_config->device_hw_info.function_mode == |
eb5f10c2 SH |
4626 | VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION) |
4627 | if (vdev->config.intr_type == INTA) | |
4628 | vxge_hw_device_unmask_all(hldev); | |
4629 | ||
703da5a1 RV |
4630 | vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...", |
4631 | vdev->ndev->name, __func__, __LINE__); | |
4632 | ||
4633 | vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL); | |
4634 | VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev), | |
4635 | vxge_hw_device_trace_level_get(hldev)); | |
4636 | ||
7dad171c | 4637 | kfree(ll_config); |
703da5a1 RV |
4638 | return 0; |
4639 | ||
e8ac1756 | 4640 | _exit6: |
703da5a1 RV |
4641 | for (i = 0; i < vdev->no_of_vpath; i++) |
4642 | vxge_free_mac_add_list(&vdev->vpaths[i]); | |
e8ac1756 | 4643 | _exit5: |
703da5a1 | 4644 | vxge_device_unregister(hldev); |
7975d1ee | 4645 | _exit4: |
5dbc9011 | 4646 | pci_disable_sriov(pdev); |
703da5a1 | 4647 | vxge_hw_device_terminate(hldev); |
703da5a1 RV |
4648 | _exit3: |
4649 | iounmap(attr.bar0); | |
4650 | _exit2: | |
4651 | pci_release_regions(pdev); | |
4652 | _exit1: | |
4653 | pci_disable_device(pdev); | |
4654 | _exit0: | |
7dad171c | 4655 | kfree(ll_config); |
703da5a1 RV |
4656 | kfree(device_config); |
4657 | driver_config->config_dev_cnt--; | |
4658 | pci_set_drvdata(pdev, NULL); | |
4659 | return ret; | |
4660 | } | |
4661 | ||
4662 | /** | |
4663 | * vxge_rem_nic - Free the PCI device | |
4664 | * @pdev: structure containing the PCI related information of the device. | |
4665 | * Description: This function is called by the Pci subsystem to release a | |
4666 | * PCI device and free up all resource held up by the device. | |
4667 | */ | |
2c91308f | 4668 | static void __devexit vxge_remove(struct pci_dev *pdev) |
703da5a1 | 4669 | { |
2c91308f | 4670 | struct __vxge_hw_device *hldev; |
703da5a1 RV |
4671 | struct vxgedev *vdev = NULL; |
4672 | struct net_device *dev; | |
4673 | int i = 0; | |
703da5a1 | 4674 | |
d8ee7071 | 4675 | hldev = pci_get_drvdata(pdev); |
703da5a1 RV |
4676 | |
4677 | if (hldev == NULL) | |
4678 | return; | |
2c91308f | 4679 | |
703da5a1 RV |
4680 | dev = hldev->ndev; |
4681 | vdev = netdev_priv(dev); | |
4682 | ||
2c91308f | 4683 | vxge_debug_entryexit(vdev->level_trace, "%s:%d", __func__, __LINE__); |
703da5a1 | 4684 | |
2c91308f JM |
4685 | vxge_debug_init(vdev->level_trace, "%s : removing PCI device...", |
4686 | __func__); | |
703da5a1 RV |
4687 | vxge_device_unregister(hldev); |
4688 | ||
4689 | for (i = 0; i < vdev->no_of_vpath; i++) { | |
4690 | vxge_free_mac_add_list(&vdev->vpaths[i]); | |
4691 | vdev->vpaths[i].mcast_addr_cnt = 0; | |
4692 | vdev->vpaths[i].mac_addr_cnt = 0; | |
4693 | } | |
4694 | ||
4695 | kfree(vdev->vpaths); | |
4696 | ||
4697 | iounmap(vdev->bar0); | |
703da5a1 | 4698 | |
5dbc9011 SS |
4699 | pci_disable_sriov(pdev); |
4700 | ||
703da5a1 RV |
4701 | /* we are safe to free it now */ |
4702 | free_netdev(dev); | |
4703 | ||
2c91308f JM |
4704 | vxge_debug_init(vdev->level_trace, "%s:%d Device unregistered", |
4705 | __func__, __LINE__); | |
703da5a1 RV |
4706 | |
4707 | vxge_hw_device_terminate(hldev); | |
4708 | ||
4709 | pci_disable_device(pdev); | |
4710 | pci_release_regions(pdev); | |
4711 | pci_set_drvdata(pdev, NULL); | |
2c91308f JM |
4712 | vxge_debug_entryexit(vdev->level_trace, "%s:%d Exiting...", __func__, |
4713 | __LINE__); | |
703da5a1 RV |
4714 | } |
4715 | ||
4716 | static struct pci_error_handlers vxge_err_handler = { | |
4717 | .error_detected = vxge_io_error_detected, | |
4718 | .slot_reset = vxge_io_slot_reset, | |
4719 | .resume = vxge_io_resume, | |
4720 | }; | |
4721 | ||
4722 | static struct pci_driver vxge_driver = { | |
4723 | .name = VXGE_DRIVER_NAME, | |
4724 | .id_table = vxge_id_table, | |
4725 | .probe = vxge_probe, | |
4726 | .remove = __devexit_p(vxge_remove), | |
4727 | #ifdef CONFIG_PM | |
4728 | .suspend = vxge_pm_suspend, | |
4729 | .resume = vxge_pm_resume, | |
4730 | #endif | |
4731 | .err_handler = &vxge_err_handler, | |
4732 | }; | |
4733 | ||
4734 | static int __init | |
4735 | vxge_starter(void) | |
4736 | { | |
4737 | int ret = 0; | |
703da5a1 | 4738 | |
75f5e1c6 JP |
4739 | pr_info("Copyright(c) 2002-2010 Exar Corp.\n"); |
4740 | pr_info("Driver version: %s\n", DRV_VERSION); | |
703da5a1 RV |
4741 | |
4742 | verify_bandwidth(); | |
4743 | ||
4744 | driver_config = kzalloc(sizeof(struct vxge_drv_config), GFP_KERNEL); | |
4745 | if (!driver_config) | |
4746 | return -ENOMEM; | |
4747 | ||
4748 | ret = pci_register_driver(&vxge_driver); | |
4749 | ||
4750 | if (driver_config->config_dev_cnt && | |
4751 | (driver_config->config_dev_cnt != driver_config->total_dev_cnt)) | |
4752 | vxge_debug_init(VXGE_ERR, | |
4753 | "%s: Configured %d of %d devices", | |
4754 | VXGE_DRIVER_NAME, driver_config->config_dev_cnt, | |
4755 | driver_config->total_dev_cnt); | |
4756 | ||
4757 | if (ret) | |
4758 | kfree(driver_config); | |
4759 | ||
4760 | return ret; | |
4761 | } | |
4762 | ||
4763 | static void __exit | |
4764 | vxge_closer(void) | |
4765 | { | |
4766 | pci_unregister_driver(&vxge_driver); | |
4767 | kfree(driver_config); | |
4768 | } | |
4769 | module_init(vxge_starter); | |
4770 | module_exit(vxge_closer); |