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Commit | Line | Data |
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6b7c5b94 SP |
1 | /* |
2 | * Copyright (C) 2005 - 2009 ServerEngines | |
3 | * All rights reserved. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU General Public License version 2 | |
7 | * as published by the Free Software Foundation. The full GNU General | |
8 | * Public License is included in this distribution in the file called COPYING. | |
9 | * | |
10 | * Contact Information: | |
11 | * linux-drivers@serverengines.com | |
12 | * | |
13 | * ServerEngines | |
14 | * 209 N. Fair Oaks Ave | |
15 | * Sunnyvale, CA 94085 | |
16 | */ | |
17 | ||
18 | #include "be.h" | |
8788fdc2 | 19 | #include "be_cmds.h" |
65f71b8b | 20 | #include <asm/div64.h> |
6b7c5b94 SP |
21 | |
22 | MODULE_VERSION(DRV_VER); | |
23 | MODULE_DEVICE_TABLE(pci, be_dev_ids); | |
24 | MODULE_DESCRIPTION(DRV_DESC " " DRV_VER); | |
25 | MODULE_AUTHOR("ServerEngines Corporation"); | |
26 | MODULE_LICENSE("GPL"); | |
27 | ||
28 | static unsigned int rx_frag_size = 2048; | |
29 | module_param(rx_frag_size, uint, S_IRUGO); | |
30 | MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data."); | |
31 | ||
6b7c5b94 | 32 | static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = { |
c4ca2374 | 33 | { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, |
59fd5d87 | 34 | { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) }, |
c4ca2374 AK |
35 | { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, |
36 | { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, | |
59fd5d87 | 37 | { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) }, |
6b7c5b94 SP |
38 | { 0 } |
39 | }; | |
40 | MODULE_DEVICE_TABLE(pci, be_dev_ids); | |
41 | ||
42 | static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q) | |
43 | { | |
44 | struct be_dma_mem *mem = &q->dma_mem; | |
45 | if (mem->va) | |
46 | pci_free_consistent(adapter->pdev, mem->size, | |
47 | mem->va, mem->dma); | |
48 | } | |
49 | ||
50 | static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q, | |
51 | u16 len, u16 entry_size) | |
52 | { | |
53 | struct be_dma_mem *mem = &q->dma_mem; | |
54 | ||
55 | memset(q, 0, sizeof(*q)); | |
56 | q->len = len; | |
57 | q->entry_size = entry_size; | |
58 | mem->size = len * entry_size; | |
59 | mem->va = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma); | |
60 | if (!mem->va) | |
61 | return -1; | |
62 | memset(mem->va, 0, mem->size); | |
63 | return 0; | |
64 | } | |
65 | ||
8788fdc2 | 66 | static void be_intr_set(struct be_adapter *adapter, bool enable) |
6b7c5b94 | 67 | { |
8788fdc2 | 68 | u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET; |
6b7c5b94 SP |
69 | u32 reg = ioread32(addr); |
70 | u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; | |
5f0b849e SP |
71 | |
72 | if (!enabled && enable) | |
6b7c5b94 | 73 | reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; |
5f0b849e | 74 | else if (enabled && !enable) |
6b7c5b94 | 75 | reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; |
5f0b849e | 76 | else |
6b7c5b94 | 77 | return; |
5f0b849e | 78 | |
6b7c5b94 SP |
79 | iowrite32(reg, addr); |
80 | } | |
81 | ||
8788fdc2 | 82 | static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted) |
6b7c5b94 SP |
83 | { |
84 | u32 val = 0; | |
85 | val |= qid & DB_RQ_RING_ID_MASK; | |
86 | val |= posted << DB_RQ_NUM_POSTED_SHIFT; | |
8788fdc2 | 87 | iowrite32(val, adapter->db + DB_RQ_OFFSET); |
6b7c5b94 SP |
88 | } |
89 | ||
8788fdc2 | 90 | static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted) |
6b7c5b94 SP |
91 | { |
92 | u32 val = 0; | |
93 | val |= qid & DB_TXULP_RING_ID_MASK; | |
94 | val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT; | |
8788fdc2 | 95 | iowrite32(val, adapter->db + DB_TXULP1_OFFSET); |
6b7c5b94 SP |
96 | } |
97 | ||
8788fdc2 | 98 | static void be_eq_notify(struct be_adapter *adapter, u16 qid, |
6b7c5b94 SP |
99 | bool arm, bool clear_int, u16 num_popped) |
100 | { | |
101 | u32 val = 0; | |
102 | val |= qid & DB_EQ_RING_ID_MASK; | |
103 | if (arm) | |
104 | val |= 1 << DB_EQ_REARM_SHIFT; | |
105 | if (clear_int) | |
106 | val |= 1 << DB_EQ_CLR_SHIFT; | |
107 | val |= 1 << DB_EQ_EVNT_SHIFT; | |
108 | val |= num_popped << DB_EQ_NUM_POPPED_SHIFT; | |
8788fdc2 | 109 | iowrite32(val, adapter->db + DB_EQ_OFFSET); |
6b7c5b94 SP |
110 | } |
111 | ||
8788fdc2 | 112 | void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped) |
6b7c5b94 SP |
113 | { |
114 | u32 val = 0; | |
115 | val |= qid & DB_CQ_RING_ID_MASK; | |
116 | if (arm) | |
117 | val |= 1 << DB_CQ_REARM_SHIFT; | |
118 | val |= num_popped << DB_CQ_NUM_POPPED_SHIFT; | |
8788fdc2 | 119 | iowrite32(val, adapter->db + DB_CQ_OFFSET); |
6b7c5b94 SP |
120 | } |
121 | ||
6b7c5b94 SP |
122 | static int be_mac_addr_set(struct net_device *netdev, void *p) |
123 | { | |
124 | struct be_adapter *adapter = netdev_priv(netdev); | |
125 | struct sockaddr *addr = p; | |
126 | int status = 0; | |
127 | ||
ca9e4988 AK |
128 | if (!is_valid_ether_addr(addr->sa_data)) |
129 | return -EADDRNOTAVAIL; | |
130 | ||
a65027e4 SP |
131 | status = be_cmd_pmac_del(adapter, adapter->if_handle, adapter->pmac_id); |
132 | if (status) | |
133 | return status; | |
6b7c5b94 | 134 | |
a65027e4 SP |
135 | status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data, |
136 | adapter->if_handle, &adapter->pmac_id); | |
6b7c5b94 SP |
137 | if (!status) |
138 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
139 | ||
140 | return status; | |
141 | } | |
142 | ||
b31c50a7 | 143 | void netdev_stats_update(struct be_adapter *adapter) |
6b7c5b94 SP |
144 | { |
145 | struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va); | |
146 | struct be_rxf_stats *rxf_stats = &hw_stats->rxf; | |
147 | struct be_port_rxf_stats *port_stats = | |
148 | &rxf_stats->port[adapter->port_num]; | |
78122a52 | 149 | struct net_device_stats *dev_stats = &adapter->netdev->stats; |
68110868 | 150 | struct be_erx_stats *erx_stats = &hw_stats->erx; |
6b7c5b94 SP |
151 | |
152 | dev_stats->rx_packets = port_stats->rx_total_frames; | |
153 | dev_stats->tx_packets = port_stats->tx_unicastframes + | |
154 | port_stats->tx_multicastframes + port_stats->tx_broadcastframes; | |
155 | dev_stats->rx_bytes = (u64) port_stats->rx_bytes_msd << 32 | | |
156 | (u64) port_stats->rx_bytes_lsd; | |
157 | dev_stats->tx_bytes = (u64) port_stats->tx_bytes_msd << 32 | | |
158 | (u64) port_stats->tx_bytes_lsd; | |
159 | ||
160 | /* bad pkts received */ | |
161 | dev_stats->rx_errors = port_stats->rx_crc_errors + | |
162 | port_stats->rx_alignment_symbol_errors + | |
163 | port_stats->rx_in_range_errors + | |
68110868 SP |
164 | port_stats->rx_out_range_errors + |
165 | port_stats->rx_frame_too_long + | |
166 | port_stats->rx_dropped_too_small + | |
167 | port_stats->rx_dropped_too_short + | |
168 | port_stats->rx_dropped_header_too_small + | |
169 | port_stats->rx_dropped_tcp_length + | |
170 | port_stats->rx_dropped_runt + | |
171 | port_stats->rx_tcp_checksum_errs + | |
172 | port_stats->rx_ip_checksum_errs + | |
173 | port_stats->rx_udp_checksum_errs; | |
174 | ||
175 | /* no space in linux buffers: best possible approximation */ | |
01ed30da SP |
176 | dev_stats->rx_dropped = |
177 | erx_stats->rx_drops_no_fragments[adapter->rx_obj.q.id]; | |
6b7c5b94 SP |
178 | |
179 | /* detailed rx errors */ | |
180 | dev_stats->rx_length_errors = port_stats->rx_in_range_errors + | |
68110868 SP |
181 | port_stats->rx_out_range_errors + |
182 | port_stats->rx_frame_too_long; | |
183 | ||
6b7c5b94 SP |
184 | /* receive ring buffer overflow */ |
185 | dev_stats->rx_over_errors = 0; | |
68110868 | 186 | |
6b7c5b94 SP |
187 | dev_stats->rx_crc_errors = port_stats->rx_crc_errors; |
188 | ||
189 | /* frame alignment errors */ | |
190 | dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors; | |
68110868 | 191 | |
6b7c5b94 SP |
192 | /* receiver fifo overrun */ |
193 | /* drops_no_pbuf is no per i/f, it's per BE card */ | |
194 | dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow + | |
195 | port_stats->rx_input_fifo_overflow + | |
196 | rxf_stats->rx_drops_no_pbuf; | |
197 | /* receiver missed packetd */ | |
198 | dev_stats->rx_missed_errors = 0; | |
68110868 SP |
199 | |
200 | /* packet transmit problems */ | |
201 | dev_stats->tx_errors = 0; | |
202 | ||
203 | /* no space available in linux */ | |
204 | dev_stats->tx_dropped = 0; | |
205 | ||
c5b9b92e | 206 | dev_stats->multicast = port_stats->rx_multicast_frames; |
68110868 SP |
207 | dev_stats->collisions = 0; |
208 | ||
6b7c5b94 SP |
209 | /* detailed tx_errors */ |
210 | dev_stats->tx_aborted_errors = 0; | |
211 | dev_stats->tx_carrier_errors = 0; | |
212 | dev_stats->tx_fifo_errors = 0; | |
213 | dev_stats->tx_heartbeat_errors = 0; | |
214 | dev_stats->tx_window_errors = 0; | |
215 | } | |
216 | ||
8788fdc2 | 217 | void be_link_status_update(struct be_adapter *adapter, bool link_up) |
6b7c5b94 | 218 | { |
6b7c5b94 SP |
219 | struct net_device *netdev = adapter->netdev; |
220 | ||
6b7c5b94 | 221 | /* If link came up or went down */ |
a8f447bd | 222 | if (adapter->link_up != link_up) { |
0dffc83e | 223 | adapter->link_speed = -1; |
a8f447bd | 224 | if (link_up) { |
6b7c5b94 SP |
225 | netif_start_queue(netdev); |
226 | netif_carrier_on(netdev); | |
227 | printk(KERN_INFO "%s: Link up\n", netdev->name); | |
a8f447bd SP |
228 | } else { |
229 | netif_stop_queue(netdev); | |
230 | netif_carrier_off(netdev); | |
231 | printk(KERN_INFO "%s: Link down\n", netdev->name); | |
6b7c5b94 | 232 | } |
a8f447bd | 233 | adapter->link_up = link_up; |
6b7c5b94 | 234 | } |
6b7c5b94 SP |
235 | } |
236 | ||
237 | /* Update the EQ delay n BE based on the RX frags consumed / sec */ | |
238 | static void be_rx_eqd_update(struct be_adapter *adapter) | |
239 | { | |
6b7c5b94 SP |
240 | struct be_eq_obj *rx_eq = &adapter->rx_eq; |
241 | struct be_drvr_stats *stats = &adapter->stats.drvr_stats; | |
4097f663 SP |
242 | ulong now = jiffies; |
243 | u32 eqd; | |
244 | ||
245 | if (!rx_eq->enable_aic) | |
246 | return; | |
247 | ||
248 | /* Wrapped around */ | |
249 | if (time_before(now, stats->rx_fps_jiffies)) { | |
250 | stats->rx_fps_jiffies = now; | |
251 | return; | |
252 | } | |
6b7c5b94 SP |
253 | |
254 | /* Update once a second */ | |
4097f663 | 255 | if ((now - stats->rx_fps_jiffies) < HZ) |
6b7c5b94 SP |
256 | return; |
257 | ||
258 | stats->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) / | |
4097f663 | 259 | ((now - stats->rx_fps_jiffies) / HZ); |
6b7c5b94 | 260 | |
4097f663 | 261 | stats->rx_fps_jiffies = now; |
6b7c5b94 SP |
262 | stats->be_prev_rx_frags = stats->be_rx_frags; |
263 | eqd = stats->be_rx_fps / 110000; | |
264 | eqd = eqd << 3; | |
265 | if (eqd > rx_eq->max_eqd) | |
266 | eqd = rx_eq->max_eqd; | |
267 | if (eqd < rx_eq->min_eqd) | |
268 | eqd = rx_eq->min_eqd; | |
269 | if (eqd < 10) | |
270 | eqd = 0; | |
271 | if (eqd != rx_eq->cur_eqd) | |
8788fdc2 | 272 | be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd); |
6b7c5b94 SP |
273 | |
274 | rx_eq->cur_eqd = eqd; | |
275 | } | |
276 | ||
6b7c5b94 SP |
277 | static struct net_device_stats *be_get_stats(struct net_device *dev) |
278 | { | |
78122a52 | 279 | return &dev->stats; |
6b7c5b94 SP |
280 | } |
281 | ||
65f71b8b SH |
282 | static u32 be_calc_rate(u64 bytes, unsigned long ticks) |
283 | { | |
284 | u64 rate = bytes; | |
285 | ||
286 | do_div(rate, ticks / HZ); | |
287 | rate <<= 3; /* bytes/sec -> bits/sec */ | |
288 | do_div(rate, 1000000ul); /* MB/Sec */ | |
289 | ||
290 | return rate; | |
291 | } | |
292 | ||
4097f663 SP |
293 | static void be_tx_rate_update(struct be_adapter *adapter) |
294 | { | |
295 | struct be_drvr_stats *stats = drvr_stats(adapter); | |
296 | ulong now = jiffies; | |
297 | ||
298 | /* Wrapped around? */ | |
299 | if (time_before(now, stats->be_tx_jiffies)) { | |
300 | stats->be_tx_jiffies = now; | |
301 | return; | |
302 | } | |
303 | ||
304 | /* Update tx rate once in two seconds */ | |
305 | if ((now - stats->be_tx_jiffies) > 2 * HZ) { | |
65f71b8b SH |
306 | stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes |
307 | - stats->be_tx_bytes_prev, | |
308 | now - stats->be_tx_jiffies); | |
4097f663 SP |
309 | stats->be_tx_jiffies = now; |
310 | stats->be_tx_bytes_prev = stats->be_tx_bytes; | |
311 | } | |
312 | } | |
313 | ||
6b7c5b94 SP |
314 | static void be_tx_stats_update(struct be_adapter *adapter, |
315 | u32 wrb_cnt, u32 copied, bool stopped) | |
316 | { | |
4097f663 | 317 | struct be_drvr_stats *stats = drvr_stats(adapter); |
6b7c5b94 SP |
318 | stats->be_tx_reqs++; |
319 | stats->be_tx_wrbs += wrb_cnt; | |
320 | stats->be_tx_bytes += copied; | |
321 | if (stopped) | |
322 | stats->be_tx_stops++; | |
6b7c5b94 SP |
323 | } |
324 | ||
325 | /* Determine number of WRB entries needed to xmit data in an skb */ | |
326 | static u32 wrb_cnt_for_skb(struct sk_buff *skb, bool *dummy) | |
327 | { | |
ebc8d2ab DM |
328 | int cnt = (skb->len > skb->data_len); |
329 | ||
330 | cnt += skb_shinfo(skb)->nr_frags; | |
331 | ||
6b7c5b94 SP |
332 | /* to account for hdr wrb */ |
333 | cnt++; | |
334 | if (cnt & 1) { | |
335 | /* add a dummy to make it an even num */ | |
336 | cnt++; | |
337 | *dummy = true; | |
338 | } else | |
339 | *dummy = false; | |
340 | BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT); | |
341 | return cnt; | |
342 | } | |
343 | ||
344 | static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len) | |
345 | { | |
346 | wrb->frag_pa_hi = upper_32_bits(addr); | |
347 | wrb->frag_pa_lo = addr & 0xFFFFFFFF; | |
348 | wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK; | |
349 | } | |
350 | ||
351 | static void wrb_fill_hdr(struct be_eth_hdr_wrb *hdr, struct sk_buff *skb, | |
352 | bool vlan, u32 wrb_cnt, u32 len) | |
353 | { | |
354 | memset(hdr, 0, sizeof(*hdr)); | |
355 | ||
356 | AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1); | |
357 | ||
358 | if (skb_shinfo(skb)->gso_segs > 1 && skb_shinfo(skb)->gso_size) { | |
359 | AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1); | |
360 | AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss, | |
361 | hdr, skb_shinfo(skb)->gso_size); | |
362 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
363 | if (is_tcp_pkt(skb)) | |
364 | AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1); | |
365 | else if (is_udp_pkt(skb)) | |
366 | AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1); | |
367 | } | |
368 | ||
369 | if (vlan && vlan_tx_tag_present(skb)) { | |
370 | AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1); | |
371 | AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, | |
372 | hdr, vlan_tx_tag_get(skb)); | |
373 | } | |
374 | ||
375 | AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1); | |
376 | AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1); | |
377 | AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt); | |
378 | AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len); | |
379 | } | |
380 | ||
381 | ||
382 | static int make_tx_wrbs(struct be_adapter *adapter, | |
383 | struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb) | |
384 | { | |
385 | u64 busaddr; | |
386 | u32 i, copied = 0; | |
387 | struct pci_dev *pdev = adapter->pdev; | |
388 | struct sk_buff *first_skb = skb; | |
389 | struct be_queue_info *txq = &adapter->tx_obj.q; | |
390 | struct be_eth_wrb *wrb; | |
391 | struct be_eth_hdr_wrb *hdr; | |
392 | ||
6b7c5b94 | 393 | hdr = queue_head_node(txq); |
c190e3c8 | 394 | atomic_add(wrb_cnt, &txq->used); |
6b7c5b94 SP |
395 | queue_head_inc(txq); |
396 | ||
ebc8d2ab DM |
397 | if (skb->len > skb->data_len) { |
398 | int len = skb->len - skb->data_len; | |
a73b796e AD |
399 | busaddr = pci_map_single(pdev, skb->data, len, |
400 | PCI_DMA_TODEVICE); | |
ebc8d2ab DM |
401 | wrb = queue_head_node(txq); |
402 | wrb_fill(wrb, busaddr, len); | |
403 | be_dws_cpu_to_le(wrb, sizeof(*wrb)); | |
404 | queue_head_inc(txq); | |
405 | copied += len; | |
406 | } | |
6b7c5b94 | 407 | |
ebc8d2ab DM |
408 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
409 | struct skb_frag_struct *frag = | |
410 | &skb_shinfo(skb)->frags[i]; | |
a73b796e AD |
411 | busaddr = pci_map_page(pdev, frag->page, |
412 | frag->page_offset, | |
413 | frag->size, PCI_DMA_TODEVICE); | |
ebc8d2ab DM |
414 | wrb = queue_head_node(txq); |
415 | wrb_fill(wrb, busaddr, frag->size); | |
416 | be_dws_cpu_to_le(wrb, sizeof(*wrb)); | |
417 | queue_head_inc(txq); | |
418 | copied += frag->size; | |
6b7c5b94 SP |
419 | } |
420 | ||
421 | if (dummy_wrb) { | |
422 | wrb = queue_head_node(txq); | |
423 | wrb_fill(wrb, 0, 0); | |
424 | be_dws_cpu_to_le(wrb, sizeof(*wrb)); | |
425 | queue_head_inc(txq); | |
426 | } | |
427 | ||
428 | wrb_fill_hdr(hdr, first_skb, adapter->vlan_grp ? true : false, | |
429 | wrb_cnt, copied); | |
430 | be_dws_cpu_to_le(hdr, sizeof(*hdr)); | |
431 | ||
432 | return copied; | |
433 | } | |
434 | ||
61357325 | 435 | static netdev_tx_t be_xmit(struct sk_buff *skb, |
b31c50a7 | 436 | struct net_device *netdev) |
6b7c5b94 SP |
437 | { |
438 | struct be_adapter *adapter = netdev_priv(netdev); | |
439 | struct be_tx_obj *tx_obj = &adapter->tx_obj; | |
440 | struct be_queue_info *txq = &tx_obj->q; | |
441 | u32 wrb_cnt = 0, copied = 0; | |
442 | u32 start = txq->head; | |
443 | bool dummy_wrb, stopped = false; | |
444 | ||
445 | wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb); | |
446 | ||
447 | copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb); | |
c190e3c8 AK |
448 | if (copied) { |
449 | /* record the sent skb in the sent_skb table */ | |
450 | BUG_ON(tx_obj->sent_skb_list[start]); | |
451 | tx_obj->sent_skb_list[start] = skb; | |
452 | ||
453 | /* Ensure txq has space for the next skb; Else stop the queue | |
454 | * *BEFORE* ringing the tx doorbell, so that we serialze the | |
455 | * tx compls of the current transmit which'll wake up the queue | |
456 | */ | |
457 | if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >= | |
458 | txq->len) { | |
459 | netif_stop_queue(netdev); | |
460 | stopped = true; | |
461 | } | |
6b7c5b94 | 462 | |
c190e3c8 | 463 | be_txq_notify(adapter, txq->id, wrb_cnt); |
6b7c5b94 | 464 | |
c190e3c8 AK |
465 | be_tx_stats_update(adapter, wrb_cnt, copied, stopped); |
466 | } else { | |
467 | txq->head = start; | |
468 | dev_kfree_skb_any(skb); | |
6b7c5b94 | 469 | } |
6b7c5b94 SP |
470 | return NETDEV_TX_OK; |
471 | } | |
472 | ||
473 | static int be_change_mtu(struct net_device *netdev, int new_mtu) | |
474 | { | |
475 | struct be_adapter *adapter = netdev_priv(netdev); | |
476 | if (new_mtu < BE_MIN_MTU || | |
477 | new_mtu > BE_MAX_JUMBO_FRAME_SIZE) { | |
478 | dev_info(&adapter->pdev->dev, | |
479 | "MTU must be between %d and %d bytes\n", | |
480 | BE_MIN_MTU, BE_MAX_JUMBO_FRAME_SIZE); | |
481 | return -EINVAL; | |
482 | } | |
483 | dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n", | |
484 | netdev->mtu, new_mtu); | |
485 | netdev->mtu = new_mtu; | |
486 | return 0; | |
487 | } | |
488 | ||
489 | /* | |
490 | * if there are BE_NUM_VLANS_SUPPORTED or lesser number of VLANS configured, | |
491 | * program them in BE. If more than BE_NUM_VLANS_SUPPORTED are configured, | |
492 | * set the BE in promiscuous VLAN mode. | |
493 | */ | |
b31c50a7 | 494 | static int be_vid_config(struct be_adapter *adapter) |
6b7c5b94 | 495 | { |
6b7c5b94 SP |
496 | u16 vtag[BE_NUM_VLANS_SUPPORTED]; |
497 | u16 ntags = 0, i; | |
b31c50a7 | 498 | int status; |
6b7c5b94 SP |
499 | |
500 | if (adapter->num_vlans <= BE_NUM_VLANS_SUPPORTED) { | |
501 | /* Construct VLAN Table to give to HW */ | |
502 | for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { | |
503 | if (adapter->vlan_tag[i]) { | |
504 | vtag[ntags] = cpu_to_le16(i); | |
505 | ntags++; | |
506 | } | |
507 | } | |
b31c50a7 SP |
508 | status = be_cmd_vlan_config(adapter, adapter->if_handle, |
509 | vtag, ntags, 1, 0); | |
6b7c5b94 | 510 | } else { |
b31c50a7 SP |
511 | status = be_cmd_vlan_config(adapter, adapter->if_handle, |
512 | NULL, 0, 1, 1); | |
6b7c5b94 | 513 | } |
b31c50a7 | 514 | return status; |
6b7c5b94 SP |
515 | } |
516 | ||
517 | static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp) | |
518 | { | |
519 | struct be_adapter *adapter = netdev_priv(netdev); | |
520 | struct be_eq_obj *rx_eq = &adapter->rx_eq; | |
521 | struct be_eq_obj *tx_eq = &adapter->tx_eq; | |
6b7c5b94 | 522 | |
8788fdc2 SP |
523 | be_eq_notify(adapter, rx_eq->q.id, false, false, 0); |
524 | be_eq_notify(adapter, tx_eq->q.id, false, false, 0); | |
6b7c5b94 | 525 | adapter->vlan_grp = grp; |
8788fdc2 SP |
526 | be_eq_notify(adapter, rx_eq->q.id, true, false, 0); |
527 | be_eq_notify(adapter, tx_eq->q.id, true, false, 0); | |
6b7c5b94 SP |
528 | } |
529 | ||
530 | static void be_vlan_add_vid(struct net_device *netdev, u16 vid) | |
531 | { | |
532 | struct be_adapter *adapter = netdev_priv(netdev); | |
533 | ||
534 | adapter->num_vlans++; | |
535 | adapter->vlan_tag[vid] = 1; | |
536 | ||
b31c50a7 | 537 | be_vid_config(adapter); |
6b7c5b94 SP |
538 | } |
539 | ||
540 | static void be_vlan_rem_vid(struct net_device *netdev, u16 vid) | |
541 | { | |
542 | struct be_adapter *adapter = netdev_priv(netdev); | |
543 | ||
544 | adapter->num_vlans--; | |
545 | adapter->vlan_tag[vid] = 0; | |
546 | ||
547 | vlan_group_set_device(adapter->vlan_grp, vid, NULL); | |
b31c50a7 | 548 | be_vid_config(adapter); |
6b7c5b94 SP |
549 | } |
550 | ||
24307eef | 551 | static void be_set_multicast_list(struct net_device *netdev) |
6b7c5b94 SP |
552 | { |
553 | struct be_adapter *adapter = netdev_priv(netdev); | |
6b7c5b94 | 554 | |
24307eef | 555 | if (netdev->flags & IFF_PROMISC) { |
8788fdc2 | 556 | be_cmd_promiscuous_config(adapter, adapter->port_num, 1); |
24307eef SP |
557 | adapter->promiscuous = true; |
558 | goto done; | |
6b7c5b94 SP |
559 | } |
560 | ||
24307eef SP |
561 | /* BE was previously in promiscous mode; disable it */ |
562 | if (adapter->promiscuous) { | |
563 | adapter->promiscuous = false; | |
8788fdc2 | 564 | be_cmd_promiscuous_config(adapter, adapter->port_num, 0); |
6b7c5b94 SP |
565 | } |
566 | ||
e7b909a6 SP |
567 | /* Enable multicast promisc if num configured exceeds what we support */ |
568 | if (netdev->flags & IFF_ALLMULTI || netdev->mc_count > BE_MAX_MC) { | |
569 | be_cmd_multicast_set(adapter, adapter->if_handle, NULL, 0, | |
570 | &adapter->mc_cmd_mem); | |
24307eef | 571 | goto done; |
6b7c5b94 | 572 | } |
6b7c5b94 | 573 | |
8788fdc2 | 574 | be_cmd_multicast_set(adapter, adapter->if_handle, netdev->mc_list, |
e7b909a6 | 575 | netdev->mc_count, &adapter->mc_cmd_mem); |
24307eef SP |
576 | done: |
577 | return; | |
6b7c5b94 SP |
578 | } |
579 | ||
4097f663 | 580 | static void be_rx_rate_update(struct be_adapter *adapter) |
6b7c5b94 | 581 | { |
4097f663 SP |
582 | struct be_drvr_stats *stats = drvr_stats(adapter); |
583 | ulong now = jiffies; | |
6b7c5b94 | 584 | |
4097f663 SP |
585 | /* Wrapped around */ |
586 | if (time_before(now, stats->be_rx_jiffies)) { | |
587 | stats->be_rx_jiffies = now; | |
588 | return; | |
589 | } | |
6b7c5b94 SP |
590 | |
591 | /* Update the rate once in two seconds */ | |
4097f663 | 592 | if ((now - stats->be_rx_jiffies) < 2 * HZ) |
6b7c5b94 SP |
593 | return; |
594 | ||
65f71b8b SH |
595 | stats->be_rx_rate = be_calc_rate(stats->be_rx_bytes |
596 | - stats->be_rx_bytes_prev, | |
597 | now - stats->be_rx_jiffies); | |
4097f663 | 598 | stats->be_rx_jiffies = now; |
6b7c5b94 SP |
599 | stats->be_rx_bytes_prev = stats->be_rx_bytes; |
600 | } | |
601 | ||
4097f663 SP |
602 | static void be_rx_stats_update(struct be_adapter *adapter, |
603 | u32 pktsize, u16 numfrags) | |
604 | { | |
605 | struct be_drvr_stats *stats = drvr_stats(adapter); | |
606 | ||
607 | stats->be_rx_compl++; | |
608 | stats->be_rx_frags += numfrags; | |
609 | stats->be_rx_bytes += pktsize; | |
610 | } | |
611 | ||
728a9972 AK |
612 | static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso) |
613 | { | |
614 | u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk; | |
615 | ||
616 | l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp); | |
617 | ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp); | |
618 | ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp); | |
619 | if (ip_version) { | |
620 | tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp); | |
621 | udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp); | |
622 | } | |
623 | ipv6_chk = (ip_version && (tcpf || udpf)); | |
624 | ||
625 | return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true; | |
626 | } | |
627 | ||
6b7c5b94 SP |
628 | static struct be_rx_page_info * |
629 | get_rx_page_info(struct be_adapter *adapter, u16 frag_idx) | |
630 | { | |
631 | struct be_rx_page_info *rx_page_info; | |
632 | struct be_queue_info *rxq = &adapter->rx_obj.q; | |
633 | ||
634 | rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx]; | |
635 | BUG_ON(!rx_page_info->page); | |
636 | ||
637 | if (rx_page_info->last_page_user) | |
638 | pci_unmap_page(adapter->pdev, pci_unmap_addr(rx_page_info, bus), | |
639 | adapter->big_page_size, PCI_DMA_FROMDEVICE); | |
640 | ||
641 | atomic_dec(&rxq->used); | |
642 | return rx_page_info; | |
643 | } | |
644 | ||
645 | /* Throwaway the data in the Rx completion */ | |
646 | static void be_rx_compl_discard(struct be_adapter *adapter, | |
647 | struct be_eth_rx_compl *rxcp) | |
648 | { | |
649 | struct be_queue_info *rxq = &adapter->rx_obj.q; | |
650 | struct be_rx_page_info *page_info; | |
651 | u16 rxq_idx, i, num_rcvd; | |
652 | ||
653 | rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp); | |
654 | num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp); | |
655 | ||
656 | for (i = 0; i < num_rcvd; i++) { | |
657 | page_info = get_rx_page_info(adapter, rxq_idx); | |
658 | put_page(page_info->page); | |
659 | memset(page_info, 0, sizeof(*page_info)); | |
660 | index_inc(&rxq_idx, rxq->len); | |
661 | } | |
662 | } | |
663 | ||
664 | /* | |
665 | * skb_fill_rx_data forms a complete skb for an ether frame | |
666 | * indicated by rxcp. | |
667 | */ | |
668 | static void skb_fill_rx_data(struct be_adapter *adapter, | |
669 | struct sk_buff *skb, struct be_eth_rx_compl *rxcp) | |
670 | { | |
671 | struct be_queue_info *rxq = &adapter->rx_obj.q; | |
672 | struct be_rx_page_info *page_info; | |
bd46cb6c | 673 | u16 rxq_idx, i, num_rcvd, j; |
fa77406a | 674 | u32 pktsize, hdr_len, curr_frag_len, size; |
6b7c5b94 SP |
675 | u8 *start; |
676 | ||
677 | rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp); | |
678 | pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp); | |
679 | num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp); | |
680 | ||
681 | page_info = get_rx_page_info(adapter, rxq_idx); | |
682 | ||
683 | start = page_address(page_info->page) + page_info->page_offset; | |
684 | prefetch(start); | |
685 | ||
686 | /* Copy data in the first descriptor of this completion */ | |
687 | curr_frag_len = min(pktsize, rx_frag_size); | |
688 | ||
689 | /* Copy the header portion into skb_data */ | |
690 | hdr_len = min((u32)BE_HDR_LEN, curr_frag_len); | |
691 | memcpy(skb->data, start, hdr_len); | |
692 | skb->len = curr_frag_len; | |
693 | if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */ | |
694 | /* Complete packet has now been moved to data */ | |
695 | put_page(page_info->page); | |
696 | skb->data_len = 0; | |
697 | skb->tail += curr_frag_len; | |
698 | } else { | |
699 | skb_shinfo(skb)->nr_frags = 1; | |
700 | skb_shinfo(skb)->frags[0].page = page_info->page; | |
701 | skb_shinfo(skb)->frags[0].page_offset = | |
702 | page_info->page_offset + hdr_len; | |
703 | skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len; | |
704 | skb->data_len = curr_frag_len - hdr_len; | |
705 | skb->tail += hdr_len; | |
706 | } | |
707 | memset(page_info, 0, sizeof(*page_info)); | |
708 | ||
709 | if (pktsize <= rx_frag_size) { | |
710 | BUG_ON(num_rcvd != 1); | |
76fbb429 | 711 | goto done; |
6b7c5b94 SP |
712 | } |
713 | ||
714 | /* More frags present for this completion */ | |
fa77406a | 715 | size = pktsize; |
bd46cb6c | 716 | for (i = 1, j = 0; i < num_rcvd; i++) { |
fa77406a | 717 | size -= curr_frag_len; |
6b7c5b94 SP |
718 | index_inc(&rxq_idx, rxq->len); |
719 | page_info = get_rx_page_info(adapter, rxq_idx); | |
720 | ||
fa77406a | 721 | curr_frag_len = min(size, rx_frag_size); |
6b7c5b94 | 722 | |
bd46cb6c AK |
723 | /* Coalesce all frags from the same physical page in one slot */ |
724 | if (page_info->page_offset == 0) { | |
725 | /* Fresh page */ | |
726 | j++; | |
727 | skb_shinfo(skb)->frags[j].page = page_info->page; | |
728 | skb_shinfo(skb)->frags[j].page_offset = | |
729 | page_info->page_offset; | |
730 | skb_shinfo(skb)->frags[j].size = 0; | |
731 | skb_shinfo(skb)->nr_frags++; | |
732 | } else { | |
733 | put_page(page_info->page); | |
734 | } | |
735 | ||
736 | skb_shinfo(skb)->frags[j].size += curr_frag_len; | |
6b7c5b94 SP |
737 | skb->len += curr_frag_len; |
738 | skb->data_len += curr_frag_len; | |
6b7c5b94 SP |
739 | |
740 | memset(page_info, 0, sizeof(*page_info)); | |
741 | } | |
bd46cb6c | 742 | BUG_ON(j > MAX_SKB_FRAGS); |
6b7c5b94 | 743 | |
76fbb429 | 744 | done: |
4097f663 | 745 | be_rx_stats_update(adapter, pktsize, num_rcvd); |
6b7c5b94 SP |
746 | return; |
747 | } | |
748 | ||
5be93b9a | 749 | /* Process the RX completion indicated by rxcp when GRO is disabled */ |
6b7c5b94 SP |
750 | static void be_rx_compl_process(struct be_adapter *adapter, |
751 | struct be_eth_rx_compl *rxcp) | |
752 | { | |
753 | struct sk_buff *skb; | |
dcb9b564 AK |
754 | u32 vlanf, vid; |
755 | u8 vtm; | |
6b7c5b94 | 756 | |
dcb9b564 AK |
757 | vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp); |
758 | vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp); | |
759 | ||
760 | /* vlanf could be wrongly set in some cards. | |
761 | * ignore if vtm is not set */ | |
762 | if ((adapter->cap == 0x400) && !vtm) | |
763 | vlanf = 0; | |
6b7c5b94 | 764 | |
89d71a66 | 765 | skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN); |
6b7c5b94 SP |
766 | if (!skb) { |
767 | if (net_ratelimit()) | |
768 | dev_warn(&adapter->pdev->dev, "skb alloc failed\n"); | |
769 | be_rx_compl_discard(adapter, rxcp); | |
770 | return; | |
771 | } | |
772 | ||
6b7c5b94 SP |
773 | skb_fill_rx_data(adapter, skb, rxcp); |
774 | ||
728a9972 | 775 | if (do_pkt_csum(rxcp, adapter->rx_csum)) |
6b7c5b94 | 776 | skb->ip_summed = CHECKSUM_NONE; |
728a9972 AK |
777 | else |
778 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
6b7c5b94 SP |
779 | |
780 | skb->truesize = skb->len + sizeof(struct sk_buff); | |
781 | skb->protocol = eth_type_trans(skb, adapter->netdev); | |
782 | skb->dev = adapter->netdev; | |
783 | ||
dcb9b564 | 784 | if (vlanf) { |
6b7c5b94 SP |
785 | if (!adapter->vlan_grp || adapter->num_vlans == 0) { |
786 | kfree_skb(skb); | |
787 | return; | |
788 | } | |
789 | vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp); | |
790 | vid = be16_to_cpu(vid); | |
791 | vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid); | |
792 | } else { | |
793 | netif_receive_skb(skb); | |
794 | } | |
795 | ||
6b7c5b94 SP |
796 | return; |
797 | } | |
798 | ||
5be93b9a AK |
799 | /* Process the RX completion indicated by rxcp when GRO is enabled */ |
800 | static void be_rx_compl_process_gro(struct be_adapter *adapter, | |
6b7c5b94 SP |
801 | struct be_eth_rx_compl *rxcp) |
802 | { | |
803 | struct be_rx_page_info *page_info; | |
5be93b9a | 804 | struct sk_buff *skb = NULL; |
6b7c5b94 | 805 | struct be_queue_info *rxq = &adapter->rx_obj.q; |
5be93b9a | 806 | struct be_eq_obj *eq_obj = &adapter->rx_eq; |
6b7c5b94 | 807 | u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len; |
bd46cb6c | 808 | u16 i, rxq_idx = 0, vid, j; |
dcb9b564 | 809 | u8 vtm; |
6b7c5b94 SP |
810 | |
811 | num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp); | |
812 | pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp); | |
813 | vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp); | |
814 | rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp); | |
dcb9b564 AK |
815 | vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp); |
816 | ||
817 | /* vlanf could be wrongly set in some cards. | |
818 | * ignore if vtm is not set */ | |
819 | if ((adapter->cap == 0x400) && !vtm) | |
820 | vlanf = 0; | |
6b7c5b94 | 821 | |
5be93b9a AK |
822 | skb = napi_get_frags(&eq_obj->napi); |
823 | if (!skb) { | |
824 | be_rx_compl_discard(adapter, rxcp); | |
825 | return; | |
826 | } | |
827 | ||
6b7c5b94 | 828 | remaining = pkt_size; |
bd46cb6c | 829 | for (i = 0, j = -1; i < num_rcvd; i++) { |
6b7c5b94 SP |
830 | page_info = get_rx_page_info(adapter, rxq_idx); |
831 | ||
832 | curr_frag_len = min(remaining, rx_frag_size); | |
833 | ||
bd46cb6c AK |
834 | /* Coalesce all frags from the same physical page in one slot */ |
835 | if (i == 0 || page_info->page_offset == 0) { | |
836 | /* First frag or Fresh page */ | |
837 | j++; | |
5be93b9a AK |
838 | skb_shinfo(skb)->frags[j].page = page_info->page; |
839 | skb_shinfo(skb)->frags[j].page_offset = | |
840 | page_info->page_offset; | |
841 | skb_shinfo(skb)->frags[j].size = 0; | |
bd46cb6c AK |
842 | } else { |
843 | put_page(page_info->page); | |
844 | } | |
5be93b9a | 845 | skb_shinfo(skb)->frags[j].size += curr_frag_len; |
6b7c5b94 | 846 | |
bd46cb6c | 847 | remaining -= curr_frag_len; |
6b7c5b94 | 848 | index_inc(&rxq_idx, rxq->len); |
6b7c5b94 SP |
849 | memset(page_info, 0, sizeof(*page_info)); |
850 | } | |
bd46cb6c | 851 | BUG_ON(j > MAX_SKB_FRAGS); |
6b7c5b94 | 852 | |
5be93b9a AK |
853 | skb_shinfo(skb)->nr_frags = j + 1; |
854 | skb->len = pkt_size; | |
855 | skb->data_len = pkt_size; | |
856 | skb->truesize += pkt_size; | |
857 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
858 | ||
6b7c5b94 | 859 | if (likely(!vlanf)) { |
5be93b9a | 860 | napi_gro_frags(&eq_obj->napi); |
6b7c5b94 SP |
861 | } else { |
862 | vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp); | |
863 | vid = be16_to_cpu(vid); | |
864 | ||
865 | if (!adapter->vlan_grp || adapter->num_vlans == 0) | |
866 | return; | |
867 | ||
5be93b9a | 868 | vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid); |
6b7c5b94 SP |
869 | } |
870 | ||
4097f663 | 871 | be_rx_stats_update(adapter, pkt_size, num_rcvd); |
6b7c5b94 SP |
872 | return; |
873 | } | |
874 | ||
875 | static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter) | |
876 | { | |
877 | struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq); | |
878 | ||
879 | if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0) | |
880 | return NULL; | |
881 | ||
882 | be_dws_le_to_cpu(rxcp, sizeof(*rxcp)); | |
883 | ||
6b7c5b94 SP |
884 | queue_tail_inc(&adapter->rx_obj.cq); |
885 | return rxcp; | |
886 | } | |
887 | ||
a7a0ef31 SP |
888 | /* To reset the valid bit, we need to reset the whole word as |
889 | * when walking the queue the valid entries are little-endian | |
890 | * and invalid entries are host endian | |
891 | */ | |
892 | static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp) | |
893 | { | |
894 | rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0; | |
895 | } | |
896 | ||
6b7c5b94 SP |
897 | static inline struct page *be_alloc_pages(u32 size) |
898 | { | |
899 | gfp_t alloc_flags = GFP_ATOMIC; | |
900 | u32 order = get_order(size); | |
901 | if (order > 0) | |
902 | alloc_flags |= __GFP_COMP; | |
903 | return alloc_pages(alloc_flags, order); | |
904 | } | |
905 | ||
906 | /* | |
907 | * Allocate a page, split it to fragments of size rx_frag_size and post as | |
908 | * receive buffers to BE | |
909 | */ | |
910 | static void be_post_rx_frags(struct be_adapter *adapter) | |
911 | { | |
912 | struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl; | |
913 | struct be_rx_page_info *page_info = NULL; | |
914 | struct be_queue_info *rxq = &adapter->rx_obj.q; | |
915 | struct page *pagep = NULL; | |
916 | struct be_eth_rx_d *rxd; | |
917 | u64 page_dmaaddr = 0, frag_dmaaddr; | |
918 | u32 posted, page_offset = 0; | |
919 | ||
6b7c5b94 SP |
920 | page_info = &page_info_tbl[rxq->head]; |
921 | for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) { | |
922 | if (!pagep) { | |
923 | pagep = be_alloc_pages(adapter->big_page_size); | |
924 | if (unlikely(!pagep)) { | |
925 | drvr_stats(adapter)->be_ethrx_post_fail++; | |
926 | break; | |
927 | } | |
928 | page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0, | |
929 | adapter->big_page_size, | |
930 | PCI_DMA_FROMDEVICE); | |
931 | page_info->page_offset = 0; | |
932 | } else { | |
933 | get_page(pagep); | |
934 | page_info->page_offset = page_offset + rx_frag_size; | |
935 | } | |
936 | page_offset = page_info->page_offset; | |
937 | page_info->page = pagep; | |
938 | pci_unmap_addr_set(page_info, bus, page_dmaaddr); | |
939 | frag_dmaaddr = page_dmaaddr + page_info->page_offset; | |
940 | ||
941 | rxd = queue_head_node(rxq); | |
942 | rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF); | |
943 | rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr)); | |
944 | queue_head_inc(rxq); | |
945 | ||
946 | /* Any space left in the current big page for another frag? */ | |
947 | if ((page_offset + rx_frag_size + rx_frag_size) > | |
948 | adapter->big_page_size) { | |
949 | pagep = NULL; | |
950 | page_info->last_page_user = true; | |
951 | } | |
952 | page_info = &page_info_tbl[rxq->head]; | |
953 | } | |
954 | if (pagep) | |
955 | page_info->last_page_user = true; | |
956 | ||
957 | if (posted) { | |
6b7c5b94 | 958 | atomic_add(posted, &rxq->used); |
8788fdc2 | 959 | be_rxq_notify(adapter, rxq->id, posted); |
ea1dae11 SP |
960 | } else if (atomic_read(&rxq->used) == 0) { |
961 | /* Let be_worker replenish when memory is available */ | |
962 | adapter->rx_post_starved = true; | |
6b7c5b94 SP |
963 | } |
964 | ||
965 | return; | |
966 | } | |
967 | ||
5fb379ee | 968 | static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq) |
6b7c5b94 | 969 | { |
6b7c5b94 SP |
970 | struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq); |
971 | ||
972 | if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0) | |
973 | return NULL; | |
974 | ||
975 | be_dws_le_to_cpu(txcp, sizeof(*txcp)); | |
976 | ||
977 | txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0; | |
978 | ||
979 | queue_tail_inc(tx_cq); | |
980 | return txcp; | |
981 | } | |
982 | ||
983 | static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index) | |
984 | { | |
985 | struct be_queue_info *txq = &adapter->tx_obj.q; | |
a73b796e | 986 | struct be_eth_wrb *wrb; |
6b7c5b94 SP |
987 | struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list; |
988 | struct sk_buff *sent_skb; | |
a73b796e | 989 | u64 busaddr; |
6b7c5b94 SP |
990 | u16 cur_index, num_wrbs = 0; |
991 | ||
992 | cur_index = txq->tail; | |
993 | sent_skb = sent_skbs[cur_index]; | |
994 | BUG_ON(!sent_skb); | |
995 | sent_skbs[cur_index] = NULL; | |
a73b796e AD |
996 | wrb = queue_tail_node(txq); |
997 | be_dws_le_to_cpu(wrb, sizeof(*wrb)); | |
998 | busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo; | |
999 | if (busaddr != 0) { | |
1000 | pci_unmap_single(adapter->pdev, busaddr, | |
1001 | wrb->frag_len, PCI_DMA_TODEVICE); | |
1002 | } | |
1003 | num_wrbs++; | |
1004 | queue_tail_inc(txq); | |
6b7c5b94 | 1005 | |
a73b796e | 1006 | while (cur_index != last_index) { |
6b7c5b94 | 1007 | cur_index = txq->tail; |
a73b796e AD |
1008 | wrb = queue_tail_node(txq); |
1009 | be_dws_le_to_cpu(wrb, sizeof(*wrb)); | |
1010 | busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo; | |
1011 | if (busaddr != 0) { | |
1012 | pci_unmap_page(adapter->pdev, busaddr, | |
1013 | wrb->frag_len, PCI_DMA_TODEVICE); | |
1014 | } | |
6b7c5b94 SP |
1015 | num_wrbs++; |
1016 | queue_tail_inc(txq); | |
a73b796e | 1017 | } |
6b7c5b94 SP |
1018 | |
1019 | atomic_sub(num_wrbs, &txq->used); | |
a73b796e | 1020 | |
6b7c5b94 SP |
1021 | kfree_skb(sent_skb); |
1022 | } | |
1023 | ||
859b1e4e SP |
1024 | static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj) |
1025 | { | |
1026 | struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q); | |
1027 | ||
1028 | if (!eqe->evt) | |
1029 | return NULL; | |
1030 | ||
1031 | eqe->evt = le32_to_cpu(eqe->evt); | |
1032 | queue_tail_inc(&eq_obj->q); | |
1033 | return eqe; | |
1034 | } | |
1035 | ||
1036 | static int event_handle(struct be_adapter *adapter, | |
1037 | struct be_eq_obj *eq_obj) | |
1038 | { | |
1039 | struct be_eq_entry *eqe; | |
1040 | u16 num = 0; | |
1041 | ||
1042 | while ((eqe = event_get(eq_obj)) != NULL) { | |
1043 | eqe->evt = 0; | |
1044 | num++; | |
1045 | } | |
1046 | ||
1047 | /* Deal with any spurious interrupts that come | |
1048 | * without events | |
1049 | */ | |
1050 | be_eq_notify(adapter, eq_obj->q.id, true, true, num); | |
1051 | if (num) | |
1052 | napi_schedule(&eq_obj->napi); | |
1053 | ||
1054 | return num; | |
1055 | } | |
1056 | ||
1057 | /* Just read and notify events without processing them. | |
1058 | * Used at the time of destroying event queues */ | |
1059 | static void be_eq_clean(struct be_adapter *adapter, | |
1060 | struct be_eq_obj *eq_obj) | |
1061 | { | |
1062 | struct be_eq_entry *eqe; | |
1063 | u16 num = 0; | |
1064 | ||
1065 | while ((eqe = event_get(eq_obj)) != NULL) { | |
1066 | eqe->evt = 0; | |
1067 | num++; | |
1068 | } | |
1069 | ||
1070 | if (num) | |
1071 | be_eq_notify(adapter, eq_obj->q.id, false, true, num); | |
1072 | } | |
1073 | ||
6b7c5b94 SP |
1074 | static void be_rx_q_clean(struct be_adapter *adapter) |
1075 | { | |
1076 | struct be_rx_page_info *page_info; | |
1077 | struct be_queue_info *rxq = &adapter->rx_obj.q; | |
1078 | struct be_queue_info *rx_cq = &adapter->rx_obj.cq; | |
1079 | struct be_eth_rx_compl *rxcp; | |
1080 | u16 tail; | |
1081 | ||
1082 | /* First cleanup pending rx completions */ | |
1083 | while ((rxcp = be_rx_compl_get(adapter)) != NULL) { | |
1084 | be_rx_compl_discard(adapter, rxcp); | |
a7a0ef31 | 1085 | be_rx_compl_reset(rxcp); |
8788fdc2 | 1086 | be_cq_notify(adapter, rx_cq->id, true, 1); |
6b7c5b94 SP |
1087 | } |
1088 | ||
1089 | /* Then free posted rx buffer that were not used */ | |
1090 | tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len; | |
cdab23b7 | 1091 | for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) { |
6b7c5b94 SP |
1092 | page_info = get_rx_page_info(adapter, tail); |
1093 | put_page(page_info->page); | |
1094 | memset(page_info, 0, sizeof(*page_info)); | |
1095 | } | |
1096 | BUG_ON(atomic_read(&rxq->used)); | |
1097 | } | |
1098 | ||
a8e9179a | 1099 | static void be_tx_compl_clean(struct be_adapter *adapter) |
6b7c5b94 | 1100 | { |
a8e9179a | 1101 | struct be_queue_info *tx_cq = &adapter->tx_obj.cq; |
6b7c5b94 | 1102 | struct be_queue_info *txq = &adapter->tx_obj.q; |
a8e9179a SP |
1103 | struct be_eth_tx_compl *txcp; |
1104 | u16 end_idx, cmpl = 0, timeo = 0; | |
1105 | ||
1106 | /* Wait for a max of 200ms for all the tx-completions to arrive. */ | |
1107 | do { | |
1108 | while ((txcp = be_tx_compl_get(tx_cq))) { | |
1109 | end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl, | |
1110 | wrb_index, txcp); | |
1111 | be_tx_compl_process(adapter, end_idx); | |
1112 | cmpl++; | |
1113 | } | |
1114 | if (cmpl) { | |
1115 | be_cq_notify(adapter, tx_cq->id, false, cmpl); | |
1116 | cmpl = 0; | |
1117 | } | |
1118 | ||
1119 | if (atomic_read(&txq->used) == 0 || ++timeo > 200) | |
1120 | break; | |
1121 | ||
1122 | mdelay(1); | |
1123 | } while (true); | |
1124 | ||
1125 | if (atomic_read(&txq->used)) | |
1126 | dev_err(&adapter->pdev->dev, "%d pending tx-completions\n", | |
1127 | atomic_read(&txq->used)); | |
6b7c5b94 SP |
1128 | } |
1129 | ||
5fb379ee SP |
1130 | static void be_mcc_queues_destroy(struct be_adapter *adapter) |
1131 | { | |
1132 | struct be_queue_info *q; | |
5fb379ee | 1133 | |
8788fdc2 | 1134 | q = &adapter->mcc_obj.q; |
5fb379ee | 1135 | if (q->created) |
8788fdc2 | 1136 | be_cmd_q_destroy(adapter, q, QTYPE_MCCQ); |
5fb379ee SP |
1137 | be_queue_free(adapter, q); |
1138 | ||
8788fdc2 | 1139 | q = &adapter->mcc_obj.cq; |
5fb379ee | 1140 | if (q->created) |
8788fdc2 | 1141 | be_cmd_q_destroy(adapter, q, QTYPE_CQ); |
5fb379ee SP |
1142 | be_queue_free(adapter, q); |
1143 | } | |
1144 | ||
1145 | /* Must be called only after TX qs are created as MCC shares TX EQ */ | |
1146 | static int be_mcc_queues_create(struct be_adapter *adapter) | |
1147 | { | |
1148 | struct be_queue_info *q, *cq; | |
5fb379ee SP |
1149 | |
1150 | /* Alloc MCC compl queue */ | |
8788fdc2 | 1151 | cq = &adapter->mcc_obj.cq; |
5fb379ee | 1152 | if (be_queue_alloc(adapter, cq, MCC_CQ_LEN, |
efd2e40a | 1153 | sizeof(struct be_mcc_compl))) |
5fb379ee SP |
1154 | goto err; |
1155 | ||
1156 | /* Ask BE to create MCC compl queue; share TX's eq */ | |
8788fdc2 | 1157 | if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0)) |
5fb379ee SP |
1158 | goto mcc_cq_free; |
1159 | ||
1160 | /* Alloc MCC queue */ | |
8788fdc2 | 1161 | q = &adapter->mcc_obj.q; |
5fb379ee SP |
1162 | if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb))) |
1163 | goto mcc_cq_destroy; | |
1164 | ||
1165 | /* Ask BE to create MCC queue */ | |
8788fdc2 | 1166 | if (be_cmd_mccq_create(adapter, q, cq)) |
5fb379ee SP |
1167 | goto mcc_q_free; |
1168 | ||
1169 | return 0; | |
1170 | ||
1171 | mcc_q_free: | |
1172 | be_queue_free(adapter, q); | |
1173 | mcc_cq_destroy: | |
8788fdc2 | 1174 | be_cmd_q_destroy(adapter, cq, QTYPE_CQ); |
5fb379ee SP |
1175 | mcc_cq_free: |
1176 | be_queue_free(adapter, cq); | |
1177 | err: | |
1178 | return -1; | |
1179 | } | |
1180 | ||
6b7c5b94 SP |
1181 | static void be_tx_queues_destroy(struct be_adapter *adapter) |
1182 | { | |
1183 | struct be_queue_info *q; | |
1184 | ||
1185 | q = &adapter->tx_obj.q; | |
a8e9179a | 1186 | if (q->created) |
8788fdc2 | 1187 | be_cmd_q_destroy(adapter, q, QTYPE_TXQ); |
6b7c5b94 SP |
1188 | be_queue_free(adapter, q); |
1189 | ||
1190 | q = &adapter->tx_obj.cq; | |
1191 | if (q->created) | |
8788fdc2 | 1192 | be_cmd_q_destroy(adapter, q, QTYPE_CQ); |
6b7c5b94 SP |
1193 | be_queue_free(adapter, q); |
1194 | ||
859b1e4e SP |
1195 | /* Clear any residual events */ |
1196 | be_eq_clean(adapter, &adapter->tx_eq); | |
1197 | ||
6b7c5b94 SP |
1198 | q = &adapter->tx_eq.q; |
1199 | if (q->created) | |
8788fdc2 | 1200 | be_cmd_q_destroy(adapter, q, QTYPE_EQ); |
6b7c5b94 SP |
1201 | be_queue_free(adapter, q); |
1202 | } | |
1203 | ||
1204 | static int be_tx_queues_create(struct be_adapter *adapter) | |
1205 | { | |
1206 | struct be_queue_info *eq, *q, *cq; | |
1207 | ||
1208 | adapter->tx_eq.max_eqd = 0; | |
1209 | adapter->tx_eq.min_eqd = 0; | |
1210 | adapter->tx_eq.cur_eqd = 96; | |
1211 | adapter->tx_eq.enable_aic = false; | |
1212 | /* Alloc Tx Event queue */ | |
1213 | eq = &adapter->tx_eq.q; | |
1214 | if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry))) | |
1215 | return -1; | |
1216 | ||
1217 | /* Ask BE to create Tx Event queue */ | |
8788fdc2 | 1218 | if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd)) |
6b7c5b94 SP |
1219 | goto tx_eq_free; |
1220 | /* Alloc TX eth compl queue */ | |
1221 | cq = &adapter->tx_obj.cq; | |
1222 | if (be_queue_alloc(adapter, cq, TX_CQ_LEN, | |
1223 | sizeof(struct be_eth_tx_compl))) | |
1224 | goto tx_eq_destroy; | |
1225 | ||
1226 | /* Ask BE to create Tx eth compl queue */ | |
8788fdc2 | 1227 | if (be_cmd_cq_create(adapter, cq, eq, false, false, 3)) |
6b7c5b94 SP |
1228 | goto tx_cq_free; |
1229 | ||
1230 | /* Alloc TX eth queue */ | |
1231 | q = &adapter->tx_obj.q; | |
1232 | if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb))) | |
1233 | goto tx_cq_destroy; | |
1234 | ||
1235 | /* Ask BE to create Tx eth queue */ | |
8788fdc2 | 1236 | if (be_cmd_txq_create(adapter, q, cq)) |
6b7c5b94 SP |
1237 | goto tx_q_free; |
1238 | return 0; | |
1239 | ||
1240 | tx_q_free: | |
1241 | be_queue_free(adapter, q); | |
1242 | tx_cq_destroy: | |
8788fdc2 | 1243 | be_cmd_q_destroy(adapter, cq, QTYPE_CQ); |
6b7c5b94 SP |
1244 | tx_cq_free: |
1245 | be_queue_free(adapter, cq); | |
1246 | tx_eq_destroy: | |
8788fdc2 | 1247 | be_cmd_q_destroy(adapter, eq, QTYPE_EQ); |
6b7c5b94 SP |
1248 | tx_eq_free: |
1249 | be_queue_free(adapter, eq); | |
1250 | return -1; | |
1251 | } | |
1252 | ||
1253 | static void be_rx_queues_destroy(struct be_adapter *adapter) | |
1254 | { | |
1255 | struct be_queue_info *q; | |
1256 | ||
1257 | q = &adapter->rx_obj.q; | |
1258 | if (q->created) { | |
8788fdc2 | 1259 | be_cmd_q_destroy(adapter, q, QTYPE_RXQ); |
6b7c5b94 SP |
1260 | be_rx_q_clean(adapter); |
1261 | } | |
1262 | be_queue_free(adapter, q); | |
1263 | ||
1264 | q = &adapter->rx_obj.cq; | |
1265 | if (q->created) | |
8788fdc2 | 1266 | be_cmd_q_destroy(adapter, q, QTYPE_CQ); |
6b7c5b94 SP |
1267 | be_queue_free(adapter, q); |
1268 | ||
859b1e4e SP |
1269 | /* Clear any residual events */ |
1270 | be_eq_clean(adapter, &adapter->rx_eq); | |
1271 | ||
6b7c5b94 SP |
1272 | q = &adapter->rx_eq.q; |
1273 | if (q->created) | |
8788fdc2 | 1274 | be_cmd_q_destroy(adapter, q, QTYPE_EQ); |
6b7c5b94 SP |
1275 | be_queue_free(adapter, q); |
1276 | } | |
1277 | ||
1278 | static int be_rx_queues_create(struct be_adapter *adapter) | |
1279 | { | |
1280 | struct be_queue_info *eq, *q, *cq; | |
1281 | int rc; | |
1282 | ||
6b7c5b94 SP |
1283 | adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE; |
1284 | adapter->rx_eq.max_eqd = BE_MAX_EQD; | |
1285 | adapter->rx_eq.min_eqd = 0; | |
1286 | adapter->rx_eq.cur_eqd = 0; | |
1287 | adapter->rx_eq.enable_aic = true; | |
1288 | ||
1289 | /* Alloc Rx Event queue */ | |
1290 | eq = &adapter->rx_eq.q; | |
1291 | rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN, | |
1292 | sizeof(struct be_eq_entry)); | |
1293 | if (rc) | |
1294 | return rc; | |
1295 | ||
1296 | /* Ask BE to create Rx Event queue */ | |
8788fdc2 | 1297 | rc = be_cmd_eq_create(adapter, eq, adapter->rx_eq.cur_eqd); |
6b7c5b94 SP |
1298 | if (rc) |
1299 | goto rx_eq_free; | |
1300 | ||
1301 | /* Alloc RX eth compl queue */ | |
1302 | cq = &adapter->rx_obj.cq; | |
1303 | rc = be_queue_alloc(adapter, cq, RX_CQ_LEN, | |
1304 | sizeof(struct be_eth_rx_compl)); | |
1305 | if (rc) | |
1306 | goto rx_eq_destroy; | |
1307 | ||
1308 | /* Ask BE to create Rx eth compl queue */ | |
8788fdc2 | 1309 | rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3); |
6b7c5b94 SP |
1310 | if (rc) |
1311 | goto rx_cq_free; | |
1312 | ||
1313 | /* Alloc RX eth queue */ | |
1314 | q = &adapter->rx_obj.q; | |
1315 | rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d)); | |
1316 | if (rc) | |
1317 | goto rx_cq_destroy; | |
1318 | ||
1319 | /* Ask BE to create Rx eth queue */ | |
8788fdc2 | 1320 | rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size, |
6b7c5b94 SP |
1321 | BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false); |
1322 | if (rc) | |
1323 | goto rx_q_free; | |
1324 | ||
1325 | return 0; | |
1326 | rx_q_free: | |
1327 | be_queue_free(adapter, q); | |
1328 | rx_cq_destroy: | |
8788fdc2 | 1329 | be_cmd_q_destroy(adapter, cq, QTYPE_CQ); |
6b7c5b94 SP |
1330 | rx_cq_free: |
1331 | be_queue_free(adapter, cq); | |
1332 | rx_eq_destroy: | |
8788fdc2 | 1333 | be_cmd_q_destroy(adapter, eq, QTYPE_EQ); |
6b7c5b94 SP |
1334 | rx_eq_free: |
1335 | be_queue_free(adapter, eq); | |
1336 | return rc; | |
1337 | } | |
6b7c5b94 | 1338 | |
b628bde2 SP |
1339 | /* There are 8 evt ids per func. Retruns the evt id's bit number */ |
1340 | static inline int be_evt_bit_get(struct be_adapter *adapter, u32 eq_id) | |
1341 | { | |
1342 | return eq_id - 8 * be_pci_func(adapter); | |
1343 | } | |
1344 | ||
6b7c5b94 SP |
1345 | static irqreturn_t be_intx(int irq, void *dev) |
1346 | { | |
1347 | struct be_adapter *adapter = dev; | |
8788fdc2 | 1348 | int isr; |
6b7c5b94 | 1349 | |
8788fdc2 | 1350 | isr = ioread32(adapter->csr + CEV_ISR0_OFFSET + |
eec368fb | 1351 | be_pci_func(adapter) * CEV_ISR_SIZE); |
c001c213 | 1352 | if (!isr) |
8788fdc2 | 1353 | return IRQ_NONE; |
6b7c5b94 | 1354 | |
8788fdc2 SP |
1355 | event_handle(adapter, &adapter->tx_eq); |
1356 | event_handle(adapter, &adapter->rx_eq); | |
c001c213 | 1357 | |
8788fdc2 | 1358 | return IRQ_HANDLED; |
6b7c5b94 SP |
1359 | } |
1360 | ||
1361 | static irqreturn_t be_msix_rx(int irq, void *dev) | |
1362 | { | |
1363 | struct be_adapter *adapter = dev; | |
1364 | ||
8788fdc2 | 1365 | event_handle(adapter, &adapter->rx_eq); |
6b7c5b94 SP |
1366 | |
1367 | return IRQ_HANDLED; | |
1368 | } | |
1369 | ||
5fb379ee | 1370 | static irqreturn_t be_msix_tx_mcc(int irq, void *dev) |
6b7c5b94 SP |
1371 | { |
1372 | struct be_adapter *adapter = dev; | |
1373 | ||
8788fdc2 | 1374 | event_handle(adapter, &adapter->tx_eq); |
6b7c5b94 SP |
1375 | |
1376 | return IRQ_HANDLED; | |
1377 | } | |
1378 | ||
5be93b9a | 1379 | static inline bool do_gro(struct be_adapter *adapter, |
6b7c5b94 SP |
1380 | struct be_eth_rx_compl *rxcp) |
1381 | { | |
1382 | int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp); | |
1383 | int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp); | |
1384 | ||
1385 | if (err) | |
1386 | drvr_stats(adapter)->be_rxcp_err++; | |
1387 | ||
5be93b9a | 1388 | return (tcp_frame && !err) ? true : false; |
6b7c5b94 SP |
1389 | } |
1390 | ||
1391 | int be_poll_rx(struct napi_struct *napi, int budget) | |
1392 | { | |
1393 | struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi); | |
1394 | struct be_adapter *adapter = | |
1395 | container_of(rx_eq, struct be_adapter, rx_eq); | |
1396 | struct be_queue_info *rx_cq = &adapter->rx_obj.cq; | |
1397 | struct be_eth_rx_compl *rxcp; | |
1398 | u32 work_done; | |
1399 | ||
b7b83ac3 | 1400 | adapter->stats.drvr_stats.be_rx_polls++; |
6b7c5b94 SP |
1401 | for (work_done = 0; work_done < budget; work_done++) { |
1402 | rxcp = be_rx_compl_get(adapter); | |
1403 | if (!rxcp) | |
1404 | break; | |
1405 | ||
5be93b9a AK |
1406 | if (do_gro(adapter, rxcp)) |
1407 | be_rx_compl_process_gro(adapter, rxcp); | |
6b7c5b94 SP |
1408 | else |
1409 | be_rx_compl_process(adapter, rxcp); | |
a7a0ef31 SP |
1410 | |
1411 | be_rx_compl_reset(rxcp); | |
6b7c5b94 SP |
1412 | } |
1413 | ||
6b7c5b94 SP |
1414 | /* Refill the queue */ |
1415 | if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM) | |
1416 | be_post_rx_frags(adapter); | |
1417 | ||
1418 | /* All consumed */ | |
1419 | if (work_done < budget) { | |
1420 | napi_complete(napi); | |
8788fdc2 | 1421 | be_cq_notify(adapter, rx_cq->id, true, work_done); |
6b7c5b94 SP |
1422 | } else { |
1423 | /* More to be consumed; continue with interrupts disabled */ | |
8788fdc2 | 1424 | be_cq_notify(adapter, rx_cq->id, false, work_done); |
6b7c5b94 SP |
1425 | } |
1426 | return work_done; | |
1427 | } | |
1428 | ||
5fb379ee | 1429 | void be_process_tx(struct be_adapter *adapter) |
6b7c5b94 | 1430 | { |
5fb379ee SP |
1431 | struct be_queue_info *txq = &adapter->tx_obj.q; |
1432 | struct be_queue_info *tx_cq = &adapter->tx_obj.cq; | |
6b7c5b94 SP |
1433 | struct be_eth_tx_compl *txcp; |
1434 | u32 num_cmpl = 0; | |
1435 | u16 end_idx; | |
1436 | ||
5fb379ee | 1437 | while ((txcp = be_tx_compl_get(tx_cq))) { |
6b7c5b94 SP |
1438 | end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl, |
1439 | wrb_index, txcp); | |
1440 | be_tx_compl_process(adapter, end_idx); | |
1441 | num_cmpl++; | |
1442 | } | |
1443 | ||
5fb379ee | 1444 | if (num_cmpl) { |
8788fdc2 | 1445 | be_cq_notify(adapter, tx_cq->id, true, num_cmpl); |
5fb379ee SP |
1446 | |
1447 | /* As Tx wrbs have been freed up, wake up netdev queue if | |
1448 | * it was stopped due to lack of tx wrbs. | |
1449 | */ | |
1450 | if (netif_queue_stopped(adapter->netdev) && | |
6b7c5b94 | 1451 | atomic_read(&txq->used) < txq->len / 2) { |
5fb379ee SP |
1452 | netif_wake_queue(adapter->netdev); |
1453 | } | |
1454 | ||
1455 | drvr_stats(adapter)->be_tx_events++; | |
1456 | drvr_stats(adapter)->be_tx_compl += num_cmpl; | |
6b7c5b94 | 1457 | } |
5fb379ee SP |
1458 | } |
1459 | ||
1460 | /* As TX and MCC share the same EQ check for both TX and MCC completions. | |
1461 | * For TX/MCC we don't honour budget; consume everything | |
1462 | */ | |
1463 | static int be_poll_tx_mcc(struct napi_struct *napi, int budget) | |
1464 | { | |
1465 | struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi); | |
1466 | struct be_adapter *adapter = | |
1467 | container_of(tx_eq, struct be_adapter, tx_eq); | |
6b7c5b94 SP |
1468 | |
1469 | napi_complete(napi); | |
1470 | ||
5fb379ee | 1471 | be_process_tx(adapter); |
6b7c5b94 | 1472 | |
8788fdc2 | 1473 | be_process_mcc(adapter); |
6b7c5b94 SP |
1474 | |
1475 | return 1; | |
1476 | } | |
1477 | ||
ea1dae11 SP |
1478 | static void be_worker(struct work_struct *work) |
1479 | { | |
1480 | struct be_adapter *adapter = | |
1481 | container_of(work, struct be_adapter, work.work); | |
ea1dae11 | 1482 | |
b31c50a7 | 1483 | be_cmd_get_stats(adapter, &adapter->stats.cmd); |
ea1dae11 SP |
1484 | |
1485 | /* Set EQ delay */ | |
1486 | be_rx_eqd_update(adapter); | |
1487 | ||
4097f663 SP |
1488 | be_tx_rate_update(adapter); |
1489 | be_rx_rate_update(adapter); | |
1490 | ||
ea1dae11 SP |
1491 | if (adapter->rx_post_starved) { |
1492 | adapter->rx_post_starved = false; | |
1493 | be_post_rx_frags(adapter); | |
1494 | } | |
1495 | ||
1496 | schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000)); | |
1497 | } | |
1498 | ||
8d56ff11 SP |
1499 | static void be_msix_disable(struct be_adapter *adapter) |
1500 | { | |
1501 | if (adapter->msix_enabled) { | |
1502 | pci_disable_msix(adapter->pdev); | |
1503 | adapter->msix_enabled = false; | |
1504 | } | |
1505 | } | |
1506 | ||
6b7c5b94 SP |
1507 | static void be_msix_enable(struct be_adapter *adapter) |
1508 | { | |
1509 | int i, status; | |
1510 | ||
1511 | for (i = 0; i < BE_NUM_MSIX_VECTORS; i++) | |
1512 | adapter->msix_entries[i].entry = i; | |
1513 | ||
1514 | status = pci_enable_msix(adapter->pdev, adapter->msix_entries, | |
1515 | BE_NUM_MSIX_VECTORS); | |
1516 | if (status == 0) | |
1517 | adapter->msix_enabled = true; | |
1518 | return; | |
1519 | } | |
1520 | ||
1521 | static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id) | |
1522 | { | |
b628bde2 SP |
1523 | return adapter->msix_entries[ |
1524 | be_evt_bit_get(adapter, eq_id)].vector; | |
6b7c5b94 SP |
1525 | } |
1526 | ||
b628bde2 SP |
1527 | static int be_request_irq(struct be_adapter *adapter, |
1528 | struct be_eq_obj *eq_obj, | |
1529 | void *handler, char *desc) | |
6b7c5b94 SP |
1530 | { |
1531 | struct net_device *netdev = adapter->netdev; | |
b628bde2 SP |
1532 | int vec; |
1533 | ||
1534 | sprintf(eq_obj->desc, "%s-%s", netdev->name, desc); | |
1535 | vec = be_msix_vec_get(adapter, eq_obj->q.id); | |
1536 | return request_irq(vec, handler, 0, eq_obj->desc, adapter); | |
1537 | } | |
1538 | ||
1539 | static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj) | |
1540 | { | |
1541 | int vec = be_msix_vec_get(adapter, eq_obj->q.id); | |
1542 | free_irq(vec, adapter); | |
1543 | } | |
6b7c5b94 | 1544 | |
b628bde2 SP |
1545 | static int be_msix_register(struct be_adapter *adapter) |
1546 | { | |
1547 | int status; | |
1548 | ||
1549 | status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx"); | |
6b7c5b94 SP |
1550 | if (status) |
1551 | goto err; | |
1552 | ||
b628bde2 SP |
1553 | status = be_request_irq(adapter, &adapter->rx_eq, be_msix_rx, "rx"); |
1554 | if (status) | |
1555 | goto free_tx_irq; | |
1556 | ||
6b7c5b94 | 1557 | return 0; |
b628bde2 SP |
1558 | |
1559 | free_tx_irq: | |
1560 | be_free_irq(adapter, &adapter->tx_eq); | |
6b7c5b94 SP |
1561 | err: |
1562 | dev_warn(&adapter->pdev->dev, | |
1563 | "MSIX Request IRQ failed - err %d\n", status); | |
1564 | pci_disable_msix(adapter->pdev); | |
1565 | adapter->msix_enabled = false; | |
1566 | return status; | |
1567 | } | |
1568 | ||
1569 | static int be_irq_register(struct be_adapter *adapter) | |
1570 | { | |
1571 | struct net_device *netdev = adapter->netdev; | |
1572 | int status; | |
1573 | ||
1574 | if (adapter->msix_enabled) { | |
1575 | status = be_msix_register(adapter); | |
1576 | if (status == 0) | |
1577 | goto done; | |
1578 | } | |
1579 | ||
1580 | /* INTx */ | |
1581 | netdev->irq = adapter->pdev->irq; | |
1582 | status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name, | |
1583 | adapter); | |
1584 | if (status) { | |
1585 | dev_err(&adapter->pdev->dev, | |
1586 | "INTx request IRQ failed - err %d\n", status); | |
1587 | return status; | |
1588 | } | |
1589 | done: | |
1590 | adapter->isr_registered = true; | |
1591 | return 0; | |
1592 | } | |
1593 | ||
1594 | static void be_irq_unregister(struct be_adapter *adapter) | |
1595 | { | |
1596 | struct net_device *netdev = adapter->netdev; | |
6b7c5b94 SP |
1597 | |
1598 | if (!adapter->isr_registered) | |
1599 | return; | |
1600 | ||
1601 | /* INTx */ | |
1602 | if (!adapter->msix_enabled) { | |
1603 | free_irq(netdev->irq, adapter); | |
1604 | goto done; | |
1605 | } | |
1606 | ||
1607 | /* MSIx */ | |
b628bde2 SP |
1608 | be_free_irq(adapter, &adapter->tx_eq); |
1609 | be_free_irq(adapter, &adapter->rx_eq); | |
6b7c5b94 SP |
1610 | done: |
1611 | adapter->isr_registered = false; | |
1612 | return; | |
1613 | } | |
1614 | ||
1615 | static int be_open(struct net_device *netdev) | |
1616 | { | |
1617 | struct be_adapter *adapter = netdev_priv(netdev); | |
6b7c5b94 SP |
1618 | struct be_eq_obj *rx_eq = &adapter->rx_eq; |
1619 | struct be_eq_obj *tx_eq = &adapter->tx_eq; | |
a8f447bd SP |
1620 | bool link_up; |
1621 | int status; | |
0388f251 SB |
1622 | u8 mac_speed; |
1623 | u16 link_speed; | |
5fb379ee SP |
1624 | |
1625 | /* First time posting */ | |
1626 | be_post_rx_frags(adapter); | |
1627 | ||
1628 | napi_enable(&rx_eq->napi); | |
1629 | napi_enable(&tx_eq->napi); | |
1630 | ||
1631 | be_irq_register(adapter); | |
1632 | ||
8788fdc2 | 1633 | be_intr_set(adapter, true); |
5fb379ee SP |
1634 | |
1635 | /* The evt queues are created in unarmed state; arm them */ | |
8788fdc2 SP |
1636 | be_eq_notify(adapter, rx_eq->q.id, true, false, 0); |
1637 | be_eq_notify(adapter, tx_eq->q.id, true, false, 0); | |
5fb379ee SP |
1638 | |
1639 | /* Rx compl queue may be in unarmed state; rearm it */ | |
8788fdc2 | 1640 | be_cq_notify(adapter, adapter->rx_obj.cq.id, true, 0); |
5fb379ee | 1641 | |
0388f251 SB |
1642 | status = be_cmd_link_status_query(adapter, &link_up, &mac_speed, |
1643 | &link_speed); | |
a8f447bd | 1644 | if (status) |
4f2aa89c | 1645 | goto ret_sts; |
a8f447bd | 1646 | be_link_status_update(adapter, link_up); |
5fb379ee | 1647 | |
4f2aa89c AK |
1648 | status = be_vid_config(adapter); |
1649 | if (status) | |
1650 | goto ret_sts; | |
1651 | ||
1652 | status = be_cmd_set_flow_control(adapter, | |
1653 | adapter->tx_fc, adapter->rx_fc); | |
1654 | if (status) | |
1655 | goto ret_sts; | |
1656 | ||
5fb379ee | 1657 | schedule_delayed_work(&adapter->work, msecs_to_jiffies(100)); |
4f2aa89c AK |
1658 | ret_sts: |
1659 | return status; | |
5fb379ee SP |
1660 | } |
1661 | ||
71d8d1b5 AK |
1662 | static int be_setup_wol(struct be_adapter *adapter, bool enable) |
1663 | { | |
1664 | struct be_dma_mem cmd; | |
1665 | int status = 0; | |
1666 | u8 mac[ETH_ALEN]; | |
1667 | ||
1668 | memset(mac, 0, ETH_ALEN); | |
1669 | ||
1670 | cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config); | |
1671 | cmd.va = pci_alloc_consistent(adapter->pdev, cmd.size, &cmd.dma); | |
1672 | if (cmd.va == NULL) | |
1673 | return -1; | |
1674 | memset(cmd.va, 0, cmd.size); | |
1675 | ||
1676 | if (enable) { | |
1677 | status = pci_write_config_dword(adapter->pdev, | |
1678 | PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK); | |
1679 | if (status) { | |
1680 | dev_err(&adapter->pdev->dev, | |
1681 | "Could not enable Wake-on-lan \n"); | |
1682 | pci_free_consistent(adapter->pdev, cmd.size, cmd.va, | |
1683 | cmd.dma); | |
1684 | return status; | |
1685 | } | |
1686 | status = be_cmd_enable_magic_wol(adapter, | |
1687 | adapter->netdev->dev_addr, &cmd); | |
1688 | pci_enable_wake(adapter->pdev, PCI_D3hot, 1); | |
1689 | pci_enable_wake(adapter->pdev, PCI_D3cold, 1); | |
1690 | } else { | |
1691 | status = be_cmd_enable_magic_wol(adapter, mac, &cmd); | |
1692 | pci_enable_wake(adapter->pdev, PCI_D3hot, 0); | |
1693 | pci_enable_wake(adapter->pdev, PCI_D3cold, 0); | |
1694 | } | |
1695 | ||
1696 | pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma); | |
1697 | return status; | |
1698 | } | |
1699 | ||
5fb379ee SP |
1700 | static int be_setup(struct be_adapter *adapter) |
1701 | { | |
5fb379ee | 1702 | struct net_device *netdev = adapter->netdev; |
73d540f2 | 1703 | u32 cap_flags, en_flags; |
6b7c5b94 SP |
1704 | int status; |
1705 | ||
73d540f2 SP |
1706 | cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST | |
1707 | BE_IF_FLAGS_MCAST_PROMISCUOUS | | |
1708 | BE_IF_FLAGS_PROMISCUOUS | | |
1709 | BE_IF_FLAGS_PASS_L3L4_ERRORS; | |
1710 | en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST | | |
1711 | BE_IF_FLAGS_PASS_L3L4_ERRORS; | |
1712 | ||
1713 | status = be_cmd_if_create(adapter, cap_flags, en_flags, | |
1714 | netdev->dev_addr, false/* pmac_invalid */, | |
1715 | &adapter->if_handle, &adapter->pmac_id); | |
6b7c5b94 SP |
1716 | if (status != 0) |
1717 | goto do_none; | |
1718 | ||
6b7c5b94 SP |
1719 | status = be_tx_queues_create(adapter); |
1720 | if (status != 0) | |
1721 | goto if_destroy; | |
1722 | ||
1723 | status = be_rx_queues_create(adapter); | |
1724 | if (status != 0) | |
1725 | goto tx_qs_destroy; | |
1726 | ||
5fb379ee SP |
1727 | status = be_mcc_queues_create(adapter); |
1728 | if (status != 0) | |
1729 | goto rx_qs_destroy; | |
6b7c5b94 | 1730 | |
0dffc83e AK |
1731 | adapter->link_speed = -1; |
1732 | ||
6b7c5b94 SP |
1733 | return 0; |
1734 | ||
5fb379ee SP |
1735 | rx_qs_destroy: |
1736 | be_rx_queues_destroy(adapter); | |
6b7c5b94 SP |
1737 | tx_qs_destroy: |
1738 | be_tx_queues_destroy(adapter); | |
1739 | if_destroy: | |
8788fdc2 | 1740 | be_cmd_if_destroy(adapter, adapter->if_handle); |
6b7c5b94 SP |
1741 | do_none: |
1742 | return status; | |
1743 | } | |
1744 | ||
5fb379ee SP |
1745 | static int be_clear(struct be_adapter *adapter) |
1746 | { | |
1a8887d8 | 1747 | be_mcc_queues_destroy(adapter); |
5fb379ee SP |
1748 | be_rx_queues_destroy(adapter); |
1749 | be_tx_queues_destroy(adapter); | |
1750 | ||
8788fdc2 | 1751 | be_cmd_if_destroy(adapter, adapter->if_handle); |
5fb379ee | 1752 | |
2243e2e9 SP |
1753 | /* tell fw we're done with firing cmds */ |
1754 | be_cmd_fw_clean(adapter); | |
5fb379ee SP |
1755 | return 0; |
1756 | } | |
1757 | ||
6b7c5b94 SP |
1758 | static int be_close(struct net_device *netdev) |
1759 | { | |
1760 | struct be_adapter *adapter = netdev_priv(netdev); | |
6b7c5b94 SP |
1761 | struct be_eq_obj *rx_eq = &adapter->rx_eq; |
1762 | struct be_eq_obj *tx_eq = &adapter->tx_eq; | |
1763 | int vec; | |
1764 | ||
b305be78 | 1765 | cancel_delayed_work_sync(&adapter->work); |
6b7c5b94 SP |
1766 | |
1767 | netif_stop_queue(netdev); | |
1768 | netif_carrier_off(netdev); | |
a8f447bd | 1769 | adapter->link_up = false; |
6b7c5b94 | 1770 | |
8788fdc2 | 1771 | be_intr_set(adapter, false); |
6b7c5b94 SP |
1772 | |
1773 | if (adapter->msix_enabled) { | |
1774 | vec = be_msix_vec_get(adapter, tx_eq->q.id); | |
1775 | synchronize_irq(vec); | |
1776 | vec = be_msix_vec_get(adapter, rx_eq->q.id); | |
1777 | synchronize_irq(vec); | |
1778 | } else { | |
1779 | synchronize_irq(netdev->irq); | |
1780 | } | |
1781 | be_irq_unregister(adapter); | |
1782 | ||
1783 | napi_disable(&rx_eq->napi); | |
1784 | napi_disable(&tx_eq->napi); | |
1785 | ||
a8e9179a SP |
1786 | /* Wait for all pending tx completions to arrive so that |
1787 | * all tx skbs are freed. | |
1788 | */ | |
1789 | be_tx_compl_clean(adapter); | |
1790 | ||
6b7c5b94 SP |
1791 | return 0; |
1792 | } | |
1793 | ||
84517482 AK |
1794 | #define FW_FILE_HDR_SIGN "ServerEngines Corp. " |
1795 | char flash_cookie[2][16] = {"*** SE FLAS", | |
1796 | "H DIRECTORY *** "}; | |
fa9a6fed SB |
1797 | |
1798 | static bool be_flash_redboot(struct be_adapter *adapter, | |
1799 | const u8 *p) | |
1800 | { | |
1801 | u32 crc_offset; | |
1802 | u8 flashed_crc[4]; | |
1803 | int status; | |
1804 | crc_offset = FLASH_REDBOOT_START + FLASH_REDBOOT_IMAGE_MAX_SIZE - 4 | |
1805 | + sizeof(struct flash_file_hdr) - 32*1024; | |
1806 | p += crc_offset; | |
1807 | status = be_cmd_get_flash_crc(adapter, flashed_crc); | |
1808 | if (status) { | |
1809 | dev_err(&adapter->pdev->dev, | |
1810 | "could not get crc from flash, not flashing redboot\n"); | |
1811 | return false; | |
1812 | } | |
1813 | ||
1814 | /*update redboot only if crc does not match*/ | |
1815 | if (!memcmp(flashed_crc, p, 4)) | |
1816 | return false; | |
1817 | else | |
1818 | return true; | |
1819 | ||
1820 | } | |
1821 | ||
84517482 AK |
1822 | static int be_flash_image(struct be_adapter *adapter, |
1823 | const struct firmware *fw, | |
1824 | struct be_dma_mem *flash_cmd, u32 flash_type) | |
1825 | { | |
1826 | int status; | |
1827 | u32 flash_op, image_offset = 0, total_bytes, image_size = 0; | |
1828 | int num_bytes; | |
1829 | const u8 *p = fw->data; | |
1830 | struct be_cmd_write_flashrom *req = flash_cmd->va; | |
1831 | ||
1832 | switch (flash_type) { | |
1833 | case FLASHROM_TYPE_ISCSI_ACTIVE: | |
1834 | image_offset = FLASH_iSCSI_PRIMARY_IMAGE_START; | |
1835 | image_size = FLASH_IMAGE_MAX_SIZE; | |
1836 | break; | |
1837 | case FLASHROM_TYPE_ISCSI_BACKUP: | |
1838 | image_offset = FLASH_iSCSI_BACKUP_IMAGE_START; | |
1839 | image_size = FLASH_IMAGE_MAX_SIZE; | |
1840 | break; | |
1841 | case FLASHROM_TYPE_FCOE_FW_ACTIVE: | |
1842 | image_offset = FLASH_FCoE_PRIMARY_IMAGE_START; | |
1843 | image_size = FLASH_IMAGE_MAX_SIZE; | |
1844 | break; | |
1845 | case FLASHROM_TYPE_FCOE_FW_BACKUP: | |
1846 | image_offset = FLASH_FCoE_BACKUP_IMAGE_START; | |
1847 | image_size = FLASH_IMAGE_MAX_SIZE; | |
1848 | break; | |
1849 | case FLASHROM_TYPE_BIOS: | |
1850 | image_offset = FLASH_iSCSI_BIOS_START; | |
1851 | image_size = FLASH_BIOS_IMAGE_MAX_SIZE; | |
1852 | break; | |
1853 | case FLASHROM_TYPE_FCOE_BIOS: | |
1854 | image_offset = FLASH_FCoE_BIOS_START; | |
1855 | image_size = FLASH_BIOS_IMAGE_MAX_SIZE; | |
1856 | break; | |
1857 | case FLASHROM_TYPE_PXE_BIOS: | |
1858 | image_offset = FLASH_PXE_BIOS_START; | |
1859 | image_size = FLASH_BIOS_IMAGE_MAX_SIZE; | |
1860 | break; | |
fa9a6fed SB |
1861 | case FLASHROM_TYPE_REDBOOT: |
1862 | if (!be_flash_redboot(adapter, fw->data)) | |
1863 | return 0; | |
1864 | image_offset = FLASH_REDBOOT_ISM_START; | |
1865 | image_size = FLASH_REDBOOT_IMAGE_MAX_SIZE; | |
1866 | break; | |
84517482 AK |
1867 | default: |
1868 | return 0; | |
1869 | } | |
1870 | ||
1871 | p += sizeof(struct flash_file_hdr) + image_offset; | |
1872 | if (p + image_size > fw->data + fw->size) | |
1873 | return -1; | |
1874 | ||
1875 | total_bytes = image_size; | |
1876 | ||
1877 | while (total_bytes) { | |
1878 | if (total_bytes > 32*1024) | |
1879 | num_bytes = 32*1024; | |
1880 | else | |
1881 | num_bytes = total_bytes; | |
1882 | total_bytes -= num_bytes; | |
1883 | ||
1884 | if (!total_bytes) | |
1885 | flash_op = FLASHROM_OPER_FLASH; | |
1886 | else | |
1887 | flash_op = FLASHROM_OPER_SAVE; | |
1888 | memcpy(req->params.data_buf, p, num_bytes); | |
1889 | p += num_bytes; | |
1890 | status = be_cmd_write_flashrom(adapter, flash_cmd, | |
1891 | flash_type, flash_op, num_bytes); | |
1892 | if (status) { | |
1893 | dev_err(&adapter->pdev->dev, | |
1894 | "cmd to write to flash rom failed. type/op %d/%d\n", | |
1895 | flash_type, flash_op); | |
1896 | return -1; | |
1897 | } | |
1898 | yield(); | |
1899 | } | |
1900 | ||
1901 | return 0; | |
1902 | } | |
1903 | ||
1904 | int be_load_fw(struct be_adapter *adapter, u8 *func) | |
1905 | { | |
1906 | char fw_file[ETHTOOL_FLASH_MAX_FILENAME]; | |
1907 | const struct firmware *fw; | |
1908 | struct flash_file_hdr *fhdr; | |
1909 | struct flash_section_info *fsec = NULL; | |
1910 | struct be_dma_mem flash_cmd; | |
1911 | int status; | |
1912 | const u8 *p; | |
1913 | bool entry_found = false; | |
1914 | int flash_type; | |
1915 | char fw_ver[FW_VER_LEN]; | |
1916 | char fw_cfg; | |
1917 | ||
1918 | status = be_cmd_get_fw_ver(adapter, fw_ver); | |
1919 | if (status) | |
1920 | return status; | |
1921 | ||
1922 | fw_cfg = *(fw_ver + 2); | |
1923 | if (fw_cfg == '0') | |
1924 | fw_cfg = '1'; | |
1925 | strcpy(fw_file, func); | |
1926 | ||
1927 | status = request_firmware(&fw, fw_file, &adapter->pdev->dev); | |
1928 | if (status) | |
1929 | goto fw_exit; | |
1930 | ||
1931 | p = fw->data; | |
1932 | fhdr = (struct flash_file_hdr *) p; | |
1933 | if (memcmp(fhdr->sign, FW_FILE_HDR_SIGN, strlen(FW_FILE_HDR_SIGN))) { | |
1934 | dev_err(&adapter->pdev->dev, | |
1935 | "Firmware(%s) load error (signature did not match)\n", | |
1936 | fw_file); | |
1937 | status = -1; | |
1938 | goto fw_exit; | |
1939 | } | |
1940 | ||
1941 | dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file); | |
1942 | ||
1943 | p += sizeof(struct flash_file_hdr); | |
1944 | while (p < (fw->data + fw->size)) { | |
1945 | fsec = (struct flash_section_info *)p; | |
1946 | if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie))) { | |
1947 | entry_found = true; | |
1948 | break; | |
1949 | } | |
1950 | p += 32; | |
1951 | } | |
1952 | ||
1953 | if (!entry_found) { | |
1954 | status = -1; | |
1955 | dev_err(&adapter->pdev->dev, | |
1956 | "Flash cookie not found in firmware image\n"); | |
1957 | goto fw_exit; | |
1958 | } | |
1959 | ||
1960 | flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024; | |
1961 | flash_cmd.va = pci_alloc_consistent(adapter->pdev, flash_cmd.size, | |
1962 | &flash_cmd.dma); | |
1963 | if (!flash_cmd.va) { | |
1964 | status = -ENOMEM; | |
1965 | dev_err(&adapter->pdev->dev, | |
1966 | "Memory allocation failure while flashing\n"); | |
1967 | goto fw_exit; | |
1968 | } | |
1969 | ||
1970 | for (flash_type = FLASHROM_TYPE_ISCSI_ACTIVE; | |
1971 | flash_type <= FLASHROM_TYPE_FCOE_FW_BACKUP; flash_type++) { | |
1972 | status = be_flash_image(adapter, fw, &flash_cmd, | |
1973 | flash_type); | |
1974 | if (status) | |
1975 | break; | |
1976 | } | |
1977 | ||
1978 | pci_free_consistent(adapter->pdev, flash_cmd.size, flash_cmd.va, | |
1979 | flash_cmd.dma); | |
1980 | if (status) { | |
1981 | dev_err(&adapter->pdev->dev, "Firmware load error\n"); | |
1982 | goto fw_exit; | |
1983 | } | |
1984 | ||
1985 | dev_info(&adapter->pdev->dev, "Firmware flashed succesfully\n"); | |
1986 | ||
1987 | fw_exit: | |
1988 | release_firmware(fw); | |
1989 | return status; | |
1990 | } | |
1991 | ||
6b7c5b94 SP |
1992 | static struct net_device_ops be_netdev_ops = { |
1993 | .ndo_open = be_open, | |
1994 | .ndo_stop = be_close, | |
1995 | .ndo_start_xmit = be_xmit, | |
1996 | .ndo_get_stats = be_get_stats, | |
1997 | .ndo_set_rx_mode = be_set_multicast_list, | |
1998 | .ndo_set_mac_address = be_mac_addr_set, | |
1999 | .ndo_change_mtu = be_change_mtu, | |
2000 | .ndo_validate_addr = eth_validate_addr, | |
2001 | .ndo_vlan_rx_register = be_vlan_register, | |
2002 | .ndo_vlan_rx_add_vid = be_vlan_add_vid, | |
2003 | .ndo_vlan_rx_kill_vid = be_vlan_rem_vid, | |
2004 | }; | |
2005 | ||
2006 | static void be_netdev_init(struct net_device *netdev) | |
2007 | { | |
2008 | struct be_adapter *adapter = netdev_priv(netdev); | |
2009 | ||
2010 | netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO | | |
583e3f34 AK |
2011 | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_HW_CSUM | |
2012 | NETIF_F_GRO; | |
6b7c5b94 | 2013 | |
51c59870 AK |
2014 | netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_HW_CSUM; |
2015 | ||
6b7c5b94 SP |
2016 | netdev->flags |= IFF_MULTICAST; |
2017 | ||
728a9972 AK |
2018 | adapter->rx_csum = true; |
2019 | ||
9e90c961 AK |
2020 | /* Default settings for Rx and Tx flow control */ |
2021 | adapter->rx_fc = true; | |
2022 | adapter->tx_fc = true; | |
2023 | ||
c190e3c8 AK |
2024 | netif_set_gso_max_size(netdev, 65535); |
2025 | ||
6b7c5b94 SP |
2026 | BE_SET_NETDEV_OPS(netdev, &be_netdev_ops); |
2027 | ||
2028 | SET_ETHTOOL_OPS(netdev, &be_ethtool_ops); | |
2029 | ||
6b7c5b94 SP |
2030 | netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx, |
2031 | BE_NAPI_WEIGHT); | |
5fb379ee | 2032 | netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc, |
6b7c5b94 SP |
2033 | BE_NAPI_WEIGHT); |
2034 | ||
2035 | netif_carrier_off(netdev); | |
2036 | netif_stop_queue(netdev); | |
2037 | } | |
2038 | ||
2039 | static void be_unmap_pci_bars(struct be_adapter *adapter) | |
2040 | { | |
8788fdc2 SP |
2041 | if (adapter->csr) |
2042 | iounmap(adapter->csr); | |
2043 | if (adapter->db) | |
2044 | iounmap(adapter->db); | |
2045 | if (adapter->pcicfg) | |
2046 | iounmap(adapter->pcicfg); | |
6b7c5b94 SP |
2047 | } |
2048 | ||
2049 | static int be_map_pci_bars(struct be_adapter *adapter) | |
2050 | { | |
2051 | u8 __iomem *addr; | |
2052 | ||
2053 | addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2), | |
2054 | pci_resource_len(adapter->pdev, 2)); | |
2055 | if (addr == NULL) | |
2056 | return -ENOMEM; | |
8788fdc2 | 2057 | adapter->csr = addr; |
6b7c5b94 SP |
2058 | |
2059 | addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4), | |
2060 | 128 * 1024); | |
2061 | if (addr == NULL) | |
2062 | goto pci_map_err; | |
8788fdc2 | 2063 | adapter->db = addr; |
6b7c5b94 SP |
2064 | |
2065 | addr = ioremap_nocache(pci_resource_start(adapter->pdev, 1), | |
2066 | pci_resource_len(adapter->pdev, 1)); | |
2067 | if (addr == NULL) | |
2068 | goto pci_map_err; | |
8788fdc2 | 2069 | adapter->pcicfg = addr; |
6b7c5b94 SP |
2070 | |
2071 | return 0; | |
2072 | pci_map_err: | |
2073 | be_unmap_pci_bars(adapter); | |
2074 | return -ENOMEM; | |
2075 | } | |
2076 | ||
2077 | ||
2078 | static void be_ctrl_cleanup(struct be_adapter *adapter) | |
2079 | { | |
8788fdc2 | 2080 | struct be_dma_mem *mem = &adapter->mbox_mem_alloced; |
6b7c5b94 SP |
2081 | |
2082 | be_unmap_pci_bars(adapter); | |
2083 | ||
2084 | if (mem->va) | |
2085 | pci_free_consistent(adapter->pdev, mem->size, | |
2086 | mem->va, mem->dma); | |
e7b909a6 SP |
2087 | |
2088 | mem = &adapter->mc_cmd_mem; | |
2089 | if (mem->va) | |
2090 | pci_free_consistent(adapter->pdev, mem->size, | |
2091 | mem->va, mem->dma); | |
6b7c5b94 SP |
2092 | } |
2093 | ||
6b7c5b94 SP |
2094 | static int be_ctrl_init(struct be_adapter *adapter) |
2095 | { | |
8788fdc2 SP |
2096 | struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced; |
2097 | struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem; | |
e7b909a6 | 2098 | struct be_dma_mem *mc_cmd_mem = &adapter->mc_cmd_mem; |
6b7c5b94 | 2099 | int status; |
6b7c5b94 SP |
2100 | |
2101 | status = be_map_pci_bars(adapter); | |
2102 | if (status) | |
e7b909a6 | 2103 | goto done; |
6b7c5b94 SP |
2104 | |
2105 | mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; | |
2106 | mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev, | |
2107 | mbox_mem_alloc->size, &mbox_mem_alloc->dma); | |
2108 | if (!mbox_mem_alloc->va) { | |
e7b909a6 SP |
2109 | status = -ENOMEM; |
2110 | goto unmap_pci_bars; | |
6b7c5b94 | 2111 | } |
e7b909a6 | 2112 | |
6b7c5b94 SP |
2113 | mbox_mem_align->size = sizeof(struct be_mcc_mailbox); |
2114 | mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); | |
2115 | mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); | |
2116 | memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); | |
e7b909a6 SP |
2117 | |
2118 | mc_cmd_mem->size = sizeof(struct be_cmd_req_mcast_mac_config); | |
2119 | mc_cmd_mem->va = pci_alloc_consistent(adapter->pdev, mc_cmd_mem->size, | |
2120 | &mc_cmd_mem->dma); | |
2121 | if (mc_cmd_mem->va == NULL) { | |
2122 | status = -ENOMEM; | |
2123 | goto free_mbox; | |
2124 | } | |
2125 | memset(mc_cmd_mem->va, 0, mc_cmd_mem->size); | |
2126 | ||
8788fdc2 SP |
2127 | spin_lock_init(&adapter->mbox_lock); |
2128 | spin_lock_init(&adapter->mcc_lock); | |
2129 | spin_lock_init(&adapter->mcc_cq_lock); | |
a8f447bd | 2130 | |
6b7c5b94 | 2131 | return 0; |
e7b909a6 SP |
2132 | |
2133 | free_mbox: | |
2134 | pci_free_consistent(adapter->pdev, mbox_mem_alloc->size, | |
2135 | mbox_mem_alloc->va, mbox_mem_alloc->dma); | |
2136 | ||
2137 | unmap_pci_bars: | |
2138 | be_unmap_pci_bars(adapter); | |
2139 | ||
2140 | done: | |
2141 | return status; | |
6b7c5b94 SP |
2142 | } |
2143 | ||
2144 | static void be_stats_cleanup(struct be_adapter *adapter) | |
2145 | { | |
2146 | struct be_stats_obj *stats = &adapter->stats; | |
2147 | struct be_dma_mem *cmd = &stats->cmd; | |
2148 | ||
2149 | if (cmd->va) | |
2150 | pci_free_consistent(adapter->pdev, cmd->size, | |
2151 | cmd->va, cmd->dma); | |
2152 | } | |
2153 | ||
2154 | static int be_stats_init(struct be_adapter *adapter) | |
2155 | { | |
2156 | struct be_stats_obj *stats = &adapter->stats; | |
2157 | struct be_dma_mem *cmd = &stats->cmd; | |
2158 | ||
2159 | cmd->size = sizeof(struct be_cmd_req_get_stats); | |
2160 | cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma); | |
2161 | if (cmd->va == NULL) | |
2162 | return -1; | |
2163 | return 0; | |
2164 | } | |
2165 | ||
2166 | static void __devexit be_remove(struct pci_dev *pdev) | |
2167 | { | |
2168 | struct be_adapter *adapter = pci_get_drvdata(pdev); | |
8d56ff11 | 2169 | |
6b7c5b94 SP |
2170 | if (!adapter) |
2171 | return; | |
2172 | ||
2173 | unregister_netdev(adapter->netdev); | |
2174 | ||
5fb379ee SP |
2175 | be_clear(adapter); |
2176 | ||
6b7c5b94 SP |
2177 | be_stats_cleanup(adapter); |
2178 | ||
2179 | be_ctrl_cleanup(adapter); | |
2180 | ||
8d56ff11 | 2181 | be_msix_disable(adapter); |
6b7c5b94 SP |
2182 | |
2183 | pci_set_drvdata(pdev, NULL); | |
2184 | pci_release_regions(pdev); | |
2185 | pci_disable_device(pdev); | |
2186 | ||
2187 | free_netdev(adapter->netdev); | |
2188 | } | |
2189 | ||
2243e2e9 | 2190 | static int be_get_config(struct be_adapter *adapter) |
6b7c5b94 | 2191 | { |
6b7c5b94 | 2192 | int status; |
2243e2e9 | 2193 | u8 mac[ETH_ALEN]; |
6b7c5b94 | 2194 | |
2243e2e9 | 2195 | status = be_cmd_get_fw_ver(adapter, adapter->fw_ver); |
6b7c5b94 SP |
2196 | if (status) |
2197 | return status; | |
2198 | ||
2243e2e9 SP |
2199 | status = be_cmd_query_fw_cfg(adapter, |
2200 | &adapter->port_num, &adapter->cap); | |
43a04fdc SP |
2201 | if (status) |
2202 | return status; | |
2203 | ||
2243e2e9 SP |
2204 | memset(mac, 0, ETH_ALEN); |
2205 | status = be_cmd_mac_addr_query(adapter, mac, | |
2206 | MAC_ADDRESS_TYPE_NETWORK, true /*permanent */, 0); | |
6b7c5b94 SP |
2207 | if (status) |
2208 | return status; | |
ca9e4988 AK |
2209 | |
2210 | if (!is_valid_ether_addr(mac)) | |
2211 | return -EADDRNOTAVAIL; | |
2212 | ||
2243e2e9 | 2213 | memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN); |
35a65285 | 2214 | memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN); |
6b7c5b94 | 2215 | |
2243e2e9 | 2216 | return 0; |
6b7c5b94 SP |
2217 | } |
2218 | ||
2219 | static int __devinit be_probe(struct pci_dev *pdev, | |
2220 | const struct pci_device_id *pdev_id) | |
2221 | { | |
2222 | int status = 0; | |
2223 | struct be_adapter *adapter; | |
2224 | struct net_device *netdev; | |
6b7c5b94 SP |
2225 | |
2226 | status = pci_enable_device(pdev); | |
2227 | if (status) | |
2228 | goto do_none; | |
2229 | ||
2230 | status = pci_request_regions(pdev, DRV_NAME); | |
2231 | if (status) | |
2232 | goto disable_dev; | |
2233 | pci_set_master(pdev); | |
2234 | ||
2235 | netdev = alloc_etherdev(sizeof(struct be_adapter)); | |
2236 | if (netdev == NULL) { | |
2237 | status = -ENOMEM; | |
2238 | goto rel_reg; | |
2239 | } | |
2240 | adapter = netdev_priv(netdev); | |
2241 | adapter->pdev = pdev; | |
2242 | pci_set_drvdata(pdev, adapter); | |
2243 | adapter->netdev = netdev; | |
2243e2e9 SP |
2244 | be_netdev_init(netdev); |
2245 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
6b7c5b94 SP |
2246 | |
2247 | be_msix_enable(adapter); | |
2248 | ||
e930438c | 2249 | status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
6b7c5b94 SP |
2250 | if (!status) { |
2251 | netdev->features |= NETIF_F_HIGHDMA; | |
2252 | } else { | |
e930438c | 2253 | status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
6b7c5b94 SP |
2254 | if (status) { |
2255 | dev_err(&pdev->dev, "Could not set PCI DMA Mask\n"); | |
2256 | goto free_netdev; | |
2257 | } | |
2258 | } | |
2259 | ||
6b7c5b94 SP |
2260 | status = be_ctrl_init(adapter); |
2261 | if (status) | |
2262 | goto free_netdev; | |
2263 | ||
2243e2e9 SP |
2264 | /* sync up with fw's ready state */ |
2265 | status = be_cmd_POST(adapter); | |
6b7c5b94 SP |
2266 | if (status) |
2267 | goto ctrl_clean; | |
2268 | ||
2243e2e9 SP |
2269 | /* tell fw we're ready to fire cmds */ |
2270 | status = be_cmd_fw_init(adapter); | |
6b7c5b94 | 2271 | if (status) |
2243e2e9 SP |
2272 | goto ctrl_clean; |
2273 | ||
2274 | status = be_cmd_reset_function(adapter); | |
2275 | if (status) | |
2276 | goto ctrl_clean; | |
6b7c5b94 | 2277 | |
2243e2e9 SP |
2278 | status = be_stats_init(adapter); |
2279 | if (status) | |
2280 | goto ctrl_clean; | |
2281 | ||
2282 | status = be_get_config(adapter); | |
6b7c5b94 SP |
2283 | if (status) |
2284 | goto stats_clean; | |
6b7c5b94 SP |
2285 | |
2286 | INIT_DELAYED_WORK(&adapter->work, be_worker); | |
6b7c5b94 | 2287 | |
5fb379ee SP |
2288 | status = be_setup(adapter); |
2289 | if (status) | |
2290 | goto stats_clean; | |
2243e2e9 | 2291 | |
6b7c5b94 SP |
2292 | status = register_netdev(netdev); |
2293 | if (status != 0) | |
5fb379ee | 2294 | goto unsetup; |
6b7c5b94 | 2295 | |
c4ca2374 | 2296 | dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num); |
6b7c5b94 SP |
2297 | return 0; |
2298 | ||
5fb379ee SP |
2299 | unsetup: |
2300 | be_clear(adapter); | |
6b7c5b94 SP |
2301 | stats_clean: |
2302 | be_stats_cleanup(adapter); | |
2303 | ctrl_clean: | |
2304 | be_ctrl_cleanup(adapter); | |
2305 | free_netdev: | |
8d56ff11 | 2306 | be_msix_disable(adapter); |
6b7c5b94 | 2307 | free_netdev(adapter->netdev); |
8d56ff11 | 2308 | pci_set_drvdata(pdev, NULL); |
6b7c5b94 SP |
2309 | rel_reg: |
2310 | pci_release_regions(pdev); | |
2311 | disable_dev: | |
2312 | pci_disable_device(pdev); | |
2313 | do_none: | |
c4ca2374 | 2314 | dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev)); |
6b7c5b94 SP |
2315 | return status; |
2316 | } | |
2317 | ||
2318 | static int be_suspend(struct pci_dev *pdev, pm_message_t state) | |
2319 | { | |
2320 | struct be_adapter *adapter = pci_get_drvdata(pdev); | |
2321 | struct net_device *netdev = adapter->netdev; | |
2322 | ||
71d8d1b5 AK |
2323 | if (adapter->wol) |
2324 | be_setup_wol(adapter, true); | |
2325 | ||
6b7c5b94 SP |
2326 | netif_device_detach(netdev); |
2327 | if (netif_running(netdev)) { | |
2328 | rtnl_lock(); | |
2329 | be_close(netdev); | |
2330 | rtnl_unlock(); | |
2331 | } | |
9e90c961 | 2332 | be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc); |
9b0365f1 | 2333 | be_clear(adapter); |
6b7c5b94 SP |
2334 | |
2335 | pci_save_state(pdev); | |
2336 | pci_disable_device(pdev); | |
2337 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
2338 | return 0; | |
2339 | } | |
2340 | ||
2341 | static int be_resume(struct pci_dev *pdev) | |
2342 | { | |
2343 | int status = 0; | |
2344 | struct be_adapter *adapter = pci_get_drvdata(pdev); | |
2345 | struct net_device *netdev = adapter->netdev; | |
2346 | ||
2347 | netif_device_detach(netdev); | |
2348 | ||
2349 | status = pci_enable_device(pdev); | |
2350 | if (status) | |
2351 | return status; | |
2352 | ||
2353 | pci_set_power_state(pdev, 0); | |
2354 | pci_restore_state(pdev); | |
2355 | ||
2243e2e9 SP |
2356 | /* tell fw we're ready to fire cmds */ |
2357 | status = be_cmd_fw_init(adapter); | |
2358 | if (status) | |
2359 | return status; | |
2360 | ||
9b0365f1 | 2361 | be_setup(adapter); |
6b7c5b94 SP |
2362 | if (netif_running(netdev)) { |
2363 | rtnl_lock(); | |
2364 | be_open(netdev); | |
2365 | rtnl_unlock(); | |
2366 | } | |
2367 | netif_device_attach(netdev); | |
71d8d1b5 AK |
2368 | |
2369 | if (adapter->wol) | |
2370 | be_setup_wol(adapter, false); | |
6b7c5b94 SP |
2371 | return 0; |
2372 | } | |
2373 | ||
2374 | static struct pci_driver be_driver = { | |
2375 | .name = DRV_NAME, | |
2376 | .id_table = be_dev_ids, | |
2377 | .probe = be_probe, | |
2378 | .remove = be_remove, | |
2379 | .suspend = be_suspend, | |
2380 | .resume = be_resume | |
2381 | }; | |
2382 | ||
2383 | static int __init be_init_module(void) | |
2384 | { | |
8e95a202 JP |
2385 | if (rx_frag_size != 8192 && rx_frag_size != 4096 && |
2386 | rx_frag_size != 2048) { | |
6b7c5b94 SP |
2387 | printk(KERN_WARNING DRV_NAME |
2388 | " : Module param rx_frag_size must be 2048/4096/8192." | |
2389 | " Using 2048\n"); | |
2390 | rx_frag_size = 2048; | |
2391 | } | |
6b7c5b94 SP |
2392 | |
2393 | return pci_register_driver(&be_driver); | |
2394 | } | |
2395 | module_init(be_init_module); | |
2396 | ||
2397 | static void __exit be_exit_module(void) | |
2398 | { | |
2399 | pci_unregister_driver(&be_driver); | |
2400 | } | |
2401 | module_exit(be_exit_module); |