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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 AK |
33 | { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, |
34 | { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, | |
35 | { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, | |
6b7c5b94 SP |
36 | { 0 } |
37 | }; | |
38 | MODULE_DEVICE_TABLE(pci, be_dev_ids); | |
39 | ||
40 | static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q) | |
41 | { | |
42 | struct be_dma_mem *mem = &q->dma_mem; | |
43 | if (mem->va) | |
44 | pci_free_consistent(adapter->pdev, mem->size, | |
45 | mem->va, mem->dma); | |
46 | } | |
47 | ||
48 | static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q, | |
49 | u16 len, u16 entry_size) | |
50 | { | |
51 | struct be_dma_mem *mem = &q->dma_mem; | |
52 | ||
53 | memset(q, 0, sizeof(*q)); | |
54 | q->len = len; | |
55 | q->entry_size = entry_size; | |
56 | mem->size = len * entry_size; | |
57 | mem->va = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma); | |
58 | if (!mem->va) | |
59 | return -1; | |
60 | memset(mem->va, 0, mem->size); | |
61 | return 0; | |
62 | } | |
63 | ||
8788fdc2 | 64 | static void be_intr_set(struct be_adapter *adapter, bool enable) |
6b7c5b94 | 65 | { |
8788fdc2 | 66 | u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET; |
6b7c5b94 SP |
67 | u32 reg = ioread32(addr); |
68 | u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; | |
5f0b849e SP |
69 | |
70 | if (!enabled && enable) | |
6b7c5b94 | 71 | reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; |
5f0b849e | 72 | else if (enabled && !enable) |
6b7c5b94 | 73 | reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; |
5f0b849e | 74 | else |
6b7c5b94 | 75 | return; |
5f0b849e | 76 | |
6b7c5b94 SP |
77 | iowrite32(reg, addr); |
78 | } | |
79 | ||
8788fdc2 | 80 | static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted) |
6b7c5b94 SP |
81 | { |
82 | u32 val = 0; | |
83 | val |= qid & DB_RQ_RING_ID_MASK; | |
84 | val |= posted << DB_RQ_NUM_POSTED_SHIFT; | |
8788fdc2 | 85 | iowrite32(val, adapter->db + DB_RQ_OFFSET); |
6b7c5b94 SP |
86 | } |
87 | ||
8788fdc2 | 88 | static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted) |
6b7c5b94 SP |
89 | { |
90 | u32 val = 0; | |
91 | val |= qid & DB_TXULP_RING_ID_MASK; | |
92 | val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT; | |
8788fdc2 | 93 | iowrite32(val, adapter->db + DB_TXULP1_OFFSET); |
6b7c5b94 SP |
94 | } |
95 | ||
8788fdc2 | 96 | static void be_eq_notify(struct be_adapter *adapter, u16 qid, |
6b7c5b94 SP |
97 | bool arm, bool clear_int, u16 num_popped) |
98 | { | |
99 | u32 val = 0; | |
100 | val |= qid & DB_EQ_RING_ID_MASK; | |
101 | if (arm) | |
102 | val |= 1 << DB_EQ_REARM_SHIFT; | |
103 | if (clear_int) | |
104 | val |= 1 << DB_EQ_CLR_SHIFT; | |
105 | val |= 1 << DB_EQ_EVNT_SHIFT; | |
106 | val |= num_popped << DB_EQ_NUM_POPPED_SHIFT; | |
8788fdc2 | 107 | iowrite32(val, adapter->db + DB_EQ_OFFSET); |
6b7c5b94 SP |
108 | } |
109 | ||
8788fdc2 | 110 | void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped) |
6b7c5b94 SP |
111 | { |
112 | u32 val = 0; | |
113 | val |= qid & DB_CQ_RING_ID_MASK; | |
114 | if (arm) | |
115 | val |= 1 << DB_CQ_REARM_SHIFT; | |
116 | val |= num_popped << DB_CQ_NUM_POPPED_SHIFT; | |
8788fdc2 | 117 | iowrite32(val, adapter->db + DB_CQ_OFFSET); |
6b7c5b94 SP |
118 | } |
119 | ||
120 | ||
121 | static int be_mac_addr_set(struct net_device *netdev, void *p) | |
122 | { | |
123 | struct be_adapter *adapter = netdev_priv(netdev); | |
124 | struct sockaddr *addr = p; | |
125 | int status = 0; | |
126 | ||
127 | if (netif_running(netdev)) { | |
8788fdc2 | 128 | status = be_cmd_pmac_del(adapter, adapter->if_handle, |
6b7c5b94 SP |
129 | adapter->pmac_id); |
130 | if (status) | |
131 | return status; | |
132 | ||
8788fdc2 | 133 | status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data, |
6b7c5b94 SP |
134 | adapter->if_handle, &adapter->pmac_id); |
135 | } | |
136 | ||
137 | if (!status) | |
138 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
139 | ||
140 | return status; | |
141 | } | |
142 | ||
143 | static void netdev_stats_update(struct be_adapter *adapter) | |
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]; | |
149 | struct net_device_stats *dev_stats = &adapter->stats.net_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 */ | |
176 | dev_stats->rx_dropped = erx_stats->rx_drops_no_fragments[0]; | |
6b7c5b94 SP |
177 | |
178 | /* detailed rx errors */ | |
179 | dev_stats->rx_length_errors = port_stats->rx_in_range_errors + | |
68110868 SP |
180 | port_stats->rx_out_range_errors + |
181 | port_stats->rx_frame_too_long; | |
182 | ||
6b7c5b94 SP |
183 | /* receive ring buffer overflow */ |
184 | dev_stats->rx_over_errors = 0; | |
68110868 | 185 | |
6b7c5b94 SP |
186 | dev_stats->rx_crc_errors = port_stats->rx_crc_errors; |
187 | ||
188 | /* frame alignment errors */ | |
189 | dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors; | |
68110868 | 190 | |
6b7c5b94 SP |
191 | /* receiver fifo overrun */ |
192 | /* drops_no_pbuf is no per i/f, it's per BE card */ | |
193 | dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow + | |
194 | port_stats->rx_input_fifo_overflow + | |
195 | rxf_stats->rx_drops_no_pbuf; | |
196 | /* receiver missed packetd */ | |
197 | dev_stats->rx_missed_errors = 0; | |
68110868 SP |
198 | |
199 | /* packet transmit problems */ | |
200 | dev_stats->tx_errors = 0; | |
201 | ||
202 | /* no space available in linux */ | |
203 | dev_stats->tx_dropped = 0; | |
204 | ||
205 | dev_stats->multicast = port_stats->tx_multicastframes; | |
206 | dev_stats->collisions = 0; | |
207 | ||
6b7c5b94 SP |
208 | /* detailed tx_errors */ |
209 | dev_stats->tx_aborted_errors = 0; | |
210 | dev_stats->tx_carrier_errors = 0; | |
211 | dev_stats->tx_fifo_errors = 0; | |
212 | dev_stats->tx_heartbeat_errors = 0; | |
213 | dev_stats->tx_window_errors = 0; | |
214 | } | |
215 | ||
8788fdc2 | 216 | void be_link_status_update(struct be_adapter *adapter, bool link_up) |
6b7c5b94 | 217 | { |
6b7c5b94 SP |
218 | struct net_device *netdev = adapter->netdev; |
219 | ||
6b7c5b94 | 220 | /* If link came up or went down */ |
a8f447bd SP |
221 | if (adapter->link_up != link_up) { |
222 | if (link_up) { | |
6b7c5b94 SP |
223 | netif_start_queue(netdev); |
224 | netif_carrier_on(netdev); | |
225 | printk(KERN_INFO "%s: Link up\n", netdev->name); | |
a8f447bd SP |
226 | } else { |
227 | netif_stop_queue(netdev); | |
228 | netif_carrier_off(netdev); | |
229 | printk(KERN_INFO "%s: Link down\n", netdev->name); | |
6b7c5b94 | 230 | } |
a8f447bd | 231 | adapter->link_up = link_up; |
6b7c5b94 | 232 | } |
6b7c5b94 SP |
233 | } |
234 | ||
235 | /* Update the EQ delay n BE based on the RX frags consumed / sec */ | |
236 | static void be_rx_eqd_update(struct be_adapter *adapter) | |
237 | { | |
6b7c5b94 SP |
238 | struct be_eq_obj *rx_eq = &adapter->rx_eq; |
239 | struct be_drvr_stats *stats = &adapter->stats.drvr_stats; | |
4097f663 SP |
240 | ulong now = jiffies; |
241 | u32 eqd; | |
242 | ||
243 | if (!rx_eq->enable_aic) | |
244 | return; | |
245 | ||
246 | /* Wrapped around */ | |
247 | if (time_before(now, stats->rx_fps_jiffies)) { | |
248 | stats->rx_fps_jiffies = now; | |
249 | return; | |
250 | } | |
6b7c5b94 SP |
251 | |
252 | /* Update once a second */ | |
4097f663 | 253 | if ((now - stats->rx_fps_jiffies) < HZ) |
6b7c5b94 SP |
254 | return; |
255 | ||
256 | stats->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) / | |
4097f663 | 257 | ((now - stats->rx_fps_jiffies) / HZ); |
6b7c5b94 | 258 | |
4097f663 | 259 | stats->rx_fps_jiffies = now; |
6b7c5b94 SP |
260 | stats->be_prev_rx_frags = stats->be_rx_frags; |
261 | eqd = stats->be_rx_fps / 110000; | |
262 | eqd = eqd << 3; | |
263 | if (eqd > rx_eq->max_eqd) | |
264 | eqd = rx_eq->max_eqd; | |
265 | if (eqd < rx_eq->min_eqd) | |
266 | eqd = rx_eq->min_eqd; | |
267 | if (eqd < 10) | |
268 | eqd = 0; | |
269 | if (eqd != rx_eq->cur_eqd) | |
8788fdc2 | 270 | be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd); |
6b7c5b94 SP |
271 | |
272 | rx_eq->cur_eqd = eqd; | |
273 | } | |
274 | ||
6b7c5b94 SP |
275 | static struct net_device_stats *be_get_stats(struct net_device *dev) |
276 | { | |
277 | struct be_adapter *adapter = netdev_priv(dev); | |
278 | ||
279 | return &adapter->stats.net_stats; | |
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 | ||
393 | atomic_add(wrb_cnt, &txq->used); | |
394 | hdr = queue_head_node(txq); | |
395 | queue_head_inc(txq); | |
396 | ||
ebc8d2ab DM |
397 | if (skb->len > skb->data_len) { |
398 | int len = skb->len - skb->data_len; | |
399 | busaddr = pci_map_single(pdev, skb->data, len, | |
400 | PCI_DMA_TODEVICE); | |
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]; | |
411 | busaddr = pci_map_page(pdev, frag->page, | |
8788fdc2 SP |
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 | ||
435 | static int be_xmit(struct sk_buff *skb, struct net_device *netdev) | |
436 | { | |
437 | struct be_adapter *adapter = netdev_priv(netdev); | |
438 | struct be_tx_obj *tx_obj = &adapter->tx_obj; | |
439 | struct be_queue_info *txq = &tx_obj->q; | |
440 | u32 wrb_cnt = 0, copied = 0; | |
441 | u32 start = txq->head; | |
442 | bool dummy_wrb, stopped = false; | |
443 | ||
444 | wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb); | |
445 | ||
446 | copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb); | |
447 | ||
448 | /* record the sent skb in the sent_skb table */ | |
449 | BUG_ON(tx_obj->sent_skb_list[start]); | |
450 | tx_obj->sent_skb_list[start] = skb; | |
451 | ||
452 | /* Ensure that txq has space for the next skb; Else stop the queue | |
453 | * *BEFORE* ringing the tx doorbell, so that we serialze the | |
454 | * tx compls of the current transmit which'll wake up the queue | |
455 | */ | |
456 | if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >= txq->len) { | |
457 | netif_stop_queue(netdev); | |
458 | stopped = true; | |
459 | } | |
460 | ||
8788fdc2 | 461 | be_txq_notify(adapter, txq->id, wrb_cnt); |
6b7c5b94 | 462 | |
6b7c5b94 SP |
463 | be_tx_stats_update(adapter, wrb_cnt, copied, stopped); |
464 | return NETDEV_TX_OK; | |
465 | } | |
466 | ||
467 | static int be_change_mtu(struct net_device *netdev, int new_mtu) | |
468 | { | |
469 | struct be_adapter *adapter = netdev_priv(netdev); | |
470 | if (new_mtu < BE_MIN_MTU || | |
471 | new_mtu > BE_MAX_JUMBO_FRAME_SIZE) { | |
472 | dev_info(&adapter->pdev->dev, | |
473 | "MTU must be between %d and %d bytes\n", | |
474 | BE_MIN_MTU, BE_MAX_JUMBO_FRAME_SIZE); | |
475 | return -EINVAL; | |
476 | } | |
477 | dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n", | |
478 | netdev->mtu, new_mtu); | |
479 | netdev->mtu = new_mtu; | |
480 | return 0; | |
481 | } | |
482 | ||
483 | /* | |
484 | * if there are BE_NUM_VLANS_SUPPORTED or lesser number of VLANS configured, | |
485 | * program them in BE. If more than BE_NUM_VLANS_SUPPORTED are configured, | |
486 | * set the BE in promiscuous VLAN mode. | |
487 | */ | |
1ab1ab75 | 488 | static void be_vid_config(struct net_device *netdev) |
6b7c5b94 SP |
489 | { |
490 | struct be_adapter *adapter = netdev_priv(netdev); | |
491 | u16 vtag[BE_NUM_VLANS_SUPPORTED]; | |
492 | u16 ntags = 0, i; | |
493 | ||
494 | if (adapter->num_vlans <= BE_NUM_VLANS_SUPPORTED) { | |
495 | /* Construct VLAN Table to give to HW */ | |
496 | for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { | |
497 | if (adapter->vlan_tag[i]) { | |
498 | vtag[ntags] = cpu_to_le16(i); | |
499 | ntags++; | |
500 | } | |
501 | } | |
8788fdc2 | 502 | be_cmd_vlan_config(adapter, adapter->if_handle, |
6b7c5b94 SP |
503 | vtag, ntags, 1, 0); |
504 | } else { | |
8788fdc2 | 505 | be_cmd_vlan_config(adapter, adapter->if_handle, |
6b7c5b94 SP |
506 | NULL, 0, 1, 1); |
507 | } | |
508 | } | |
509 | ||
510 | static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp) | |
511 | { | |
512 | struct be_adapter *adapter = netdev_priv(netdev); | |
513 | struct be_eq_obj *rx_eq = &adapter->rx_eq; | |
514 | struct be_eq_obj *tx_eq = &adapter->tx_eq; | |
6b7c5b94 | 515 | |
8788fdc2 SP |
516 | be_eq_notify(adapter, rx_eq->q.id, false, false, 0); |
517 | be_eq_notify(adapter, tx_eq->q.id, false, false, 0); | |
6b7c5b94 | 518 | adapter->vlan_grp = grp; |
8788fdc2 SP |
519 | be_eq_notify(adapter, rx_eq->q.id, true, false, 0); |
520 | be_eq_notify(adapter, tx_eq->q.id, true, false, 0); | |
6b7c5b94 SP |
521 | } |
522 | ||
523 | static void be_vlan_add_vid(struct net_device *netdev, u16 vid) | |
524 | { | |
525 | struct be_adapter *adapter = netdev_priv(netdev); | |
526 | ||
527 | adapter->num_vlans++; | |
528 | adapter->vlan_tag[vid] = 1; | |
529 | ||
1ab1ab75 | 530 | be_vid_config(netdev); |
6b7c5b94 SP |
531 | } |
532 | ||
533 | static void be_vlan_rem_vid(struct net_device *netdev, u16 vid) | |
534 | { | |
535 | struct be_adapter *adapter = netdev_priv(netdev); | |
536 | ||
537 | adapter->num_vlans--; | |
538 | adapter->vlan_tag[vid] = 0; | |
539 | ||
540 | vlan_group_set_device(adapter->vlan_grp, vid, NULL); | |
1ab1ab75 | 541 | be_vid_config(netdev); |
6b7c5b94 SP |
542 | } |
543 | ||
24307eef | 544 | static void be_set_multicast_list(struct net_device *netdev) |
6b7c5b94 SP |
545 | { |
546 | struct be_adapter *adapter = netdev_priv(netdev); | |
6b7c5b94 | 547 | |
24307eef | 548 | if (netdev->flags & IFF_PROMISC) { |
8788fdc2 | 549 | be_cmd_promiscuous_config(adapter, adapter->port_num, 1); |
24307eef SP |
550 | adapter->promiscuous = true; |
551 | goto done; | |
6b7c5b94 SP |
552 | } |
553 | ||
24307eef SP |
554 | /* BE was previously in promiscous mode; disable it */ |
555 | if (adapter->promiscuous) { | |
556 | adapter->promiscuous = false; | |
8788fdc2 | 557 | be_cmd_promiscuous_config(adapter, adapter->port_num, 0); |
6b7c5b94 SP |
558 | } |
559 | ||
24307eef | 560 | if (netdev->flags & IFF_ALLMULTI) { |
8788fdc2 | 561 | be_cmd_multicast_set(adapter, adapter->if_handle, NULL, 0); |
24307eef | 562 | goto done; |
6b7c5b94 | 563 | } |
6b7c5b94 | 564 | |
8788fdc2 | 565 | be_cmd_multicast_set(adapter, adapter->if_handle, netdev->mc_list, |
24307eef SP |
566 | netdev->mc_count); |
567 | done: | |
568 | return; | |
6b7c5b94 SP |
569 | } |
570 | ||
4097f663 | 571 | static void be_rx_rate_update(struct be_adapter *adapter) |
6b7c5b94 | 572 | { |
4097f663 SP |
573 | struct be_drvr_stats *stats = drvr_stats(adapter); |
574 | ulong now = jiffies; | |
6b7c5b94 | 575 | |
4097f663 SP |
576 | /* Wrapped around */ |
577 | if (time_before(now, stats->be_rx_jiffies)) { | |
578 | stats->be_rx_jiffies = now; | |
579 | return; | |
580 | } | |
6b7c5b94 SP |
581 | |
582 | /* Update the rate once in two seconds */ | |
4097f663 | 583 | if ((now - stats->be_rx_jiffies) < 2 * HZ) |
6b7c5b94 SP |
584 | return; |
585 | ||
65f71b8b SH |
586 | stats->be_rx_rate = be_calc_rate(stats->be_rx_bytes |
587 | - stats->be_rx_bytes_prev, | |
588 | now - stats->be_rx_jiffies); | |
4097f663 | 589 | stats->be_rx_jiffies = now; |
6b7c5b94 SP |
590 | stats->be_rx_bytes_prev = stats->be_rx_bytes; |
591 | } | |
592 | ||
4097f663 SP |
593 | static void be_rx_stats_update(struct be_adapter *adapter, |
594 | u32 pktsize, u16 numfrags) | |
595 | { | |
596 | struct be_drvr_stats *stats = drvr_stats(adapter); | |
597 | ||
598 | stats->be_rx_compl++; | |
599 | stats->be_rx_frags += numfrags; | |
600 | stats->be_rx_bytes += pktsize; | |
601 | } | |
602 | ||
728a9972 AK |
603 | static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso) |
604 | { | |
605 | u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk; | |
606 | ||
607 | l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp); | |
608 | ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp); | |
609 | ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp); | |
610 | if (ip_version) { | |
611 | tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp); | |
612 | udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp); | |
613 | } | |
614 | ipv6_chk = (ip_version && (tcpf || udpf)); | |
615 | ||
616 | return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true; | |
617 | } | |
618 | ||
6b7c5b94 SP |
619 | static struct be_rx_page_info * |
620 | get_rx_page_info(struct be_adapter *adapter, u16 frag_idx) | |
621 | { | |
622 | struct be_rx_page_info *rx_page_info; | |
623 | struct be_queue_info *rxq = &adapter->rx_obj.q; | |
624 | ||
625 | rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx]; | |
626 | BUG_ON(!rx_page_info->page); | |
627 | ||
628 | if (rx_page_info->last_page_user) | |
629 | pci_unmap_page(adapter->pdev, pci_unmap_addr(rx_page_info, bus), | |
630 | adapter->big_page_size, PCI_DMA_FROMDEVICE); | |
631 | ||
632 | atomic_dec(&rxq->used); | |
633 | return rx_page_info; | |
634 | } | |
635 | ||
636 | /* Throwaway the data in the Rx completion */ | |
637 | static void be_rx_compl_discard(struct be_adapter *adapter, | |
638 | struct be_eth_rx_compl *rxcp) | |
639 | { | |
640 | struct be_queue_info *rxq = &adapter->rx_obj.q; | |
641 | struct be_rx_page_info *page_info; | |
642 | u16 rxq_idx, i, num_rcvd; | |
643 | ||
644 | rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp); | |
645 | num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp); | |
646 | ||
647 | for (i = 0; i < num_rcvd; i++) { | |
648 | page_info = get_rx_page_info(adapter, rxq_idx); | |
649 | put_page(page_info->page); | |
650 | memset(page_info, 0, sizeof(*page_info)); | |
651 | index_inc(&rxq_idx, rxq->len); | |
652 | } | |
653 | } | |
654 | ||
655 | /* | |
656 | * skb_fill_rx_data forms a complete skb for an ether frame | |
657 | * indicated by rxcp. | |
658 | */ | |
659 | static void skb_fill_rx_data(struct be_adapter *adapter, | |
660 | struct sk_buff *skb, struct be_eth_rx_compl *rxcp) | |
661 | { | |
662 | struct be_queue_info *rxq = &adapter->rx_obj.q; | |
663 | struct be_rx_page_info *page_info; | |
bd46cb6c | 664 | u16 rxq_idx, i, num_rcvd, j; |
fa77406a | 665 | u32 pktsize, hdr_len, curr_frag_len, size; |
6b7c5b94 SP |
666 | u8 *start; |
667 | ||
668 | rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp); | |
669 | pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp); | |
670 | num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp); | |
671 | ||
672 | page_info = get_rx_page_info(adapter, rxq_idx); | |
673 | ||
674 | start = page_address(page_info->page) + page_info->page_offset; | |
675 | prefetch(start); | |
676 | ||
677 | /* Copy data in the first descriptor of this completion */ | |
678 | curr_frag_len = min(pktsize, rx_frag_size); | |
679 | ||
680 | /* Copy the header portion into skb_data */ | |
681 | hdr_len = min((u32)BE_HDR_LEN, curr_frag_len); | |
682 | memcpy(skb->data, start, hdr_len); | |
683 | skb->len = curr_frag_len; | |
684 | if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */ | |
685 | /* Complete packet has now been moved to data */ | |
686 | put_page(page_info->page); | |
687 | skb->data_len = 0; | |
688 | skb->tail += curr_frag_len; | |
689 | } else { | |
690 | skb_shinfo(skb)->nr_frags = 1; | |
691 | skb_shinfo(skb)->frags[0].page = page_info->page; | |
692 | skb_shinfo(skb)->frags[0].page_offset = | |
693 | page_info->page_offset + hdr_len; | |
694 | skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len; | |
695 | skb->data_len = curr_frag_len - hdr_len; | |
696 | skb->tail += hdr_len; | |
697 | } | |
698 | memset(page_info, 0, sizeof(*page_info)); | |
699 | ||
700 | if (pktsize <= rx_frag_size) { | |
701 | BUG_ON(num_rcvd != 1); | |
76fbb429 | 702 | goto done; |
6b7c5b94 SP |
703 | } |
704 | ||
705 | /* More frags present for this completion */ | |
fa77406a | 706 | size = pktsize; |
bd46cb6c | 707 | for (i = 1, j = 0; i < num_rcvd; i++) { |
fa77406a | 708 | size -= curr_frag_len; |
6b7c5b94 SP |
709 | index_inc(&rxq_idx, rxq->len); |
710 | page_info = get_rx_page_info(adapter, rxq_idx); | |
711 | ||
fa77406a | 712 | curr_frag_len = min(size, rx_frag_size); |
6b7c5b94 | 713 | |
bd46cb6c AK |
714 | /* Coalesce all frags from the same physical page in one slot */ |
715 | if (page_info->page_offset == 0) { | |
716 | /* Fresh page */ | |
717 | j++; | |
718 | skb_shinfo(skb)->frags[j].page = page_info->page; | |
719 | skb_shinfo(skb)->frags[j].page_offset = | |
720 | page_info->page_offset; | |
721 | skb_shinfo(skb)->frags[j].size = 0; | |
722 | skb_shinfo(skb)->nr_frags++; | |
723 | } else { | |
724 | put_page(page_info->page); | |
725 | } | |
726 | ||
727 | skb_shinfo(skb)->frags[j].size += curr_frag_len; | |
6b7c5b94 SP |
728 | skb->len += curr_frag_len; |
729 | skb->data_len += curr_frag_len; | |
6b7c5b94 SP |
730 | |
731 | memset(page_info, 0, sizeof(*page_info)); | |
732 | } | |
bd46cb6c | 733 | BUG_ON(j > MAX_SKB_FRAGS); |
6b7c5b94 | 734 | |
76fbb429 | 735 | done: |
4097f663 | 736 | be_rx_stats_update(adapter, pktsize, num_rcvd); |
6b7c5b94 SP |
737 | return; |
738 | } | |
739 | ||
5be93b9a | 740 | /* Process the RX completion indicated by rxcp when GRO is disabled */ |
6b7c5b94 SP |
741 | static void be_rx_compl_process(struct be_adapter *adapter, |
742 | struct be_eth_rx_compl *rxcp) | |
743 | { | |
744 | struct sk_buff *skb; | |
745 | u32 vtp, vid; | |
6b7c5b94 | 746 | |
6b7c5b94 SP |
747 | vtp = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp); |
748 | ||
749 | skb = netdev_alloc_skb(adapter->netdev, BE_HDR_LEN + NET_IP_ALIGN); | |
750 | if (!skb) { | |
751 | if (net_ratelimit()) | |
752 | dev_warn(&adapter->pdev->dev, "skb alloc failed\n"); | |
753 | be_rx_compl_discard(adapter, rxcp); | |
754 | return; | |
755 | } | |
756 | ||
757 | skb_reserve(skb, NET_IP_ALIGN); | |
758 | ||
759 | skb_fill_rx_data(adapter, skb, rxcp); | |
760 | ||
728a9972 | 761 | if (do_pkt_csum(rxcp, adapter->rx_csum)) |
6b7c5b94 | 762 | skb->ip_summed = CHECKSUM_NONE; |
728a9972 AK |
763 | else |
764 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
6b7c5b94 SP |
765 | |
766 | skb->truesize = skb->len + sizeof(struct sk_buff); | |
767 | skb->protocol = eth_type_trans(skb, adapter->netdev); | |
768 | skb->dev = adapter->netdev; | |
769 | ||
770 | if (vtp) { | |
771 | if (!adapter->vlan_grp || adapter->num_vlans == 0) { | |
772 | kfree_skb(skb); | |
773 | return; | |
774 | } | |
775 | vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp); | |
776 | vid = be16_to_cpu(vid); | |
777 | vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid); | |
778 | } else { | |
779 | netif_receive_skb(skb); | |
780 | } | |
781 | ||
782 | adapter->netdev->last_rx = jiffies; | |
783 | ||
784 | return; | |
785 | } | |
786 | ||
5be93b9a AK |
787 | /* Process the RX completion indicated by rxcp when GRO is enabled */ |
788 | static void be_rx_compl_process_gro(struct be_adapter *adapter, | |
6b7c5b94 SP |
789 | struct be_eth_rx_compl *rxcp) |
790 | { | |
791 | struct be_rx_page_info *page_info; | |
5be93b9a | 792 | struct sk_buff *skb = NULL; |
6b7c5b94 | 793 | struct be_queue_info *rxq = &adapter->rx_obj.q; |
5be93b9a | 794 | struct be_eq_obj *eq_obj = &adapter->rx_eq; |
6b7c5b94 | 795 | u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len; |
bd46cb6c | 796 | u16 i, rxq_idx = 0, vid, j; |
6b7c5b94 SP |
797 | |
798 | num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp); | |
799 | pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp); | |
800 | vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp); | |
801 | rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp); | |
802 | ||
5be93b9a AK |
803 | skb = napi_get_frags(&eq_obj->napi); |
804 | if (!skb) { | |
805 | be_rx_compl_discard(adapter, rxcp); | |
806 | return; | |
807 | } | |
808 | ||
6b7c5b94 | 809 | remaining = pkt_size; |
bd46cb6c | 810 | for (i = 0, j = -1; i < num_rcvd; i++) { |
6b7c5b94 SP |
811 | page_info = get_rx_page_info(adapter, rxq_idx); |
812 | ||
813 | curr_frag_len = min(remaining, rx_frag_size); | |
814 | ||
bd46cb6c AK |
815 | /* Coalesce all frags from the same physical page in one slot */ |
816 | if (i == 0 || page_info->page_offset == 0) { | |
817 | /* First frag or Fresh page */ | |
818 | j++; | |
5be93b9a AK |
819 | skb_shinfo(skb)->frags[j].page = page_info->page; |
820 | skb_shinfo(skb)->frags[j].page_offset = | |
821 | page_info->page_offset; | |
822 | skb_shinfo(skb)->frags[j].size = 0; | |
bd46cb6c AK |
823 | } else { |
824 | put_page(page_info->page); | |
825 | } | |
5be93b9a | 826 | skb_shinfo(skb)->frags[j].size += curr_frag_len; |
6b7c5b94 | 827 | |
bd46cb6c | 828 | remaining -= curr_frag_len; |
6b7c5b94 | 829 | index_inc(&rxq_idx, rxq->len); |
6b7c5b94 SP |
830 | memset(page_info, 0, sizeof(*page_info)); |
831 | } | |
bd46cb6c | 832 | BUG_ON(j > MAX_SKB_FRAGS); |
6b7c5b94 | 833 | |
5be93b9a AK |
834 | skb_shinfo(skb)->nr_frags = j + 1; |
835 | skb->len = pkt_size; | |
836 | skb->data_len = pkt_size; | |
837 | skb->truesize += pkt_size; | |
838 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
839 | ||
6b7c5b94 | 840 | if (likely(!vlanf)) { |
5be93b9a | 841 | napi_gro_frags(&eq_obj->napi); |
6b7c5b94 SP |
842 | } else { |
843 | vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp); | |
844 | vid = be16_to_cpu(vid); | |
845 | ||
846 | if (!adapter->vlan_grp || adapter->num_vlans == 0) | |
847 | return; | |
848 | ||
5be93b9a | 849 | vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid); |
6b7c5b94 SP |
850 | } |
851 | ||
4097f663 | 852 | be_rx_stats_update(adapter, pkt_size, num_rcvd); |
6b7c5b94 SP |
853 | return; |
854 | } | |
855 | ||
856 | static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter) | |
857 | { | |
858 | struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq); | |
859 | ||
860 | if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0) | |
861 | return NULL; | |
862 | ||
863 | be_dws_le_to_cpu(rxcp, sizeof(*rxcp)); | |
864 | ||
6b7c5b94 SP |
865 | queue_tail_inc(&adapter->rx_obj.cq); |
866 | return rxcp; | |
867 | } | |
868 | ||
a7a0ef31 SP |
869 | /* To reset the valid bit, we need to reset the whole word as |
870 | * when walking the queue the valid entries are little-endian | |
871 | * and invalid entries are host endian | |
872 | */ | |
873 | static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp) | |
874 | { | |
875 | rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0; | |
876 | } | |
877 | ||
6b7c5b94 SP |
878 | static inline struct page *be_alloc_pages(u32 size) |
879 | { | |
880 | gfp_t alloc_flags = GFP_ATOMIC; | |
881 | u32 order = get_order(size); | |
882 | if (order > 0) | |
883 | alloc_flags |= __GFP_COMP; | |
884 | return alloc_pages(alloc_flags, order); | |
885 | } | |
886 | ||
887 | /* | |
888 | * Allocate a page, split it to fragments of size rx_frag_size and post as | |
889 | * receive buffers to BE | |
890 | */ | |
891 | static void be_post_rx_frags(struct be_adapter *adapter) | |
892 | { | |
893 | struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl; | |
894 | struct be_rx_page_info *page_info = NULL; | |
895 | struct be_queue_info *rxq = &adapter->rx_obj.q; | |
896 | struct page *pagep = NULL; | |
897 | struct be_eth_rx_d *rxd; | |
898 | u64 page_dmaaddr = 0, frag_dmaaddr; | |
899 | u32 posted, page_offset = 0; | |
900 | ||
6b7c5b94 SP |
901 | page_info = &page_info_tbl[rxq->head]; |
902 | for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) { | |
903 | if (!pagep) { | |
904 | pagep = be_alloc_pages(adapter->big_page_size); | |
905 | if (unlikely(!pagep)) { | |
906 | drvr_stats(adapter)->be_ethrx_post_fail++; | |
907 | break; | |
908 | } | |
909 | page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0, | |
910 | adapter->big_page_size, | |
911 | PCI_DMA_FROMDEVICE); | |
912 | page_info->page_offset = 0; | |
913 | } else { | |
914 | get_page(pagep); | |
915 | page_info->page_offset = page_offset + rx_frag_size; | |
916 | } | |
917 | page_offset = page_info->page_offset; | |
918 | page_info->page = pagep; | |
919 | pci_unmap_addr_set(page_info, bus, page_dmaaddr); | |
920 | frag_dmaaddr = page_dmaaddr + page_info->page_offset; | |
921 | ||
922 | rxd = queue_head_node(rxq); | |
923 | rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF); | |
924 | rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr)); | |
925 | queue_head_inc(rxq); | |
926 | ||
927 | /* Any space left in the current big page for another frag? */ | |
928 | if ((page_offset + rx_frag_size + rx_frag_size) > | |
929 | adapter->big_page_size) { | |
930 | pagep = NULL; | |
931 | page_info->last_page_user = true; | |
932 | } | |
933 | page_info = &page_info_tbl[rxq->head]; | |
934 | } | |
935 | if (pagep) | |
936 | page_info->last_page_user = true; | |
937 | ||
938 | if (posted) { | |
6b7c5b94 | 939 | atomic_add(posted, &rxq->used); |
8788fdc2 | 940 | be_rxq_notify(adapter, rxq->id, posted); |
ea1dae11 SP |
941 | } else if (atomic_read(&rxq->used) == 0) { |
942 | /* Let be_worker replenish when memory is available */ | |
943 | adapter->rx_post_starved = true; | |
6b7c5b94 SP |
944 | } |
945 | ||
946 | return; | |
947 | } | |
948 | ||
5fb379ee | 949 | static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq) |
6b7c5b94 | 950 | { |
6b7c5b94 SP |
951 | struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq); |
952 | ||
953 | if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0) | |
954 | return NULL; | |
955 | ||
956 | be_dws_le_to_cpu(txcp, sizeof(*txcp)); | |
957 | ||
958 | txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0; | |
959 | ||
960 | queue_tail_inc(tx_cq); | |
961 | return txcp; | |
962 | } | |
963 | ||
964 | static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index) | |
965 | { | |
966 | struct be_queue_info *txq = &adapter->tx_obj.q; | |
967 | struct be_eth_wrb *wrb; | |
968 | struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list; | |
969 | struct sk_buff *sent_skb; | |
970 | u64 busaddr; | |
971 | u16 cur_index, num_wrbs = 0; | |
972 | ||
973 | cur_index = txq->tail; | |
974 | sent_skb = sent_skbs[cur_index]; | |
975 | BUG_ON(!sent_skb); | |
976 | sent_skbs[cur_index] = NULL; | |
977 | ||
978 | do { | |
979 | cur_index = txq->tail; | |
980 | wrb = queue_tail_node(txq); | |
981 | be_dws_le_to_cpu(wrb, sizeof(*wrb)); | |
982 | busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo; | |
983 | if (busaddr != 0) { | |
984 | pci_unmap_single(adapter->pdev, busaddr, | |
985 | wrb->frag_len, PCI_DMA_TODEVICE); | |
986 | } | |
987 | num_wrbs++; | |
988 | queue_tail_inc(txq); | |
989 | } while (cur_index != last_index); | |
990 | ||
991 | atomic_sub(num_wrbs, &txq->used); | |
992 | ||
993 | kfree_skb(sent_skb); | |
994 | } | |
995 | ||
859b1e4e SP |
996 | static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj) |
997 | { | |
998 | struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q); | |
999 | ||
1000 | if (!eqe->evt) | |
1001 | return NULL; | |
1002 | ||
1003 | eqe->evt = le32_to_cpu(eqe->evt); | |
1004 | queue_tail_inc(&eq_obj->q); | |
1005 | return eqe; | |
1006 | } | |
1007 | ||
1008 | static int event_handle(struct be_adapter *adapter, | |
1009 | struct be_eq_obj *eq_obj) | |
1010 | { | |
1011 | struct be_eq_entry *eqe; | |
1012 | u16 num = 0; | |
1013 | ||
1014 | while ((eqe = event_get(eq_obj)) != NULL) { | |
1015 | eqe->evt = 0; | |
1016 | num++; | |
1017 | } | |
1018 | ||
1019 | /* Deal with any spurious interrupts that come | |
1020 | * without events | |
1021 | */ | |
1022 | be_eq_notify(adapter, eq_obj->q.id, true, true, num); | |
1023 | if (num) | |
1024 | napi_schedule(&eq_obj->napi); | |
1025 | ||
1026 | return num; | |
1027 | } | |
1028 | ||
1029 | /* Just read and notify events without processing them. | |
1030 | * Used at the time of destroying event queues */ | |
1031 | static void be_eq_clean(struct be_adapter *adapter, | |
1032 | struct be_eq_obj *eq_obj) | |
1033 | { | |
1034 | struct be_eq_entry *eqe; | |
1035 | u16 num = 0; | |
1036 | ||
1037 | while ((eqe = event_get(eq_obj)) != NULL) { | |
1038 | eqe->evt = 0; | |
1039 | num++; | |
1040 | } | |
1041 | ||
1042 | if (num) | |
1043 | be_eq_notify(adapter, eq_obj->q.id, false, true, num); | |
1044 | } | |
1045 | ||
6b7c5b94 SP |
1046 | static void be_rx_q_clean(struct be_adapter *adapter) |
1047 | { | |
1048 | struct be_rx_page_info *page_info; | |
1049 | struct be_queue_info *rxq = &adapter->rx_obj.q; | |
1050 | struct be_queue_info *rx_cq = &adapter->rx_obj.cq; | |
1051 | struct be_eth_rx_compl *rxcp; | |
1052 | u16 tail; | |
1053 | ||
1054 | /* First cleanup pending rx completions */ | |
1055 | while ((rxcp = be_rx_compl_get(adapter)) != NULL) { | |
1056 | be_rx_compl_discard(adapter, rxcp); | |
a7a0ef31 | 1057 | be_rx_compl_reset(rxcp); |
8788fdc2 | 1058 | be_cq_notify(adapter, rx_cq->id, true, 1); |
6b7c5b94 SP |
1059 | } |
1060 | ||
1061 | /* Then free posted rx buffer that were not used */ | |
1062 | tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len; | |
cdab23b7 | 1063 | for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) { |
6b7c5b94 SP |
1064 | page_info = get_rx_page_info(adapter, tail); |
1065 | put_page(page_info->page); | |
1066 | memset(page_info, 0, sizeof(*page_info)); | |
1067 | } | |
1068 | BUG_ON(atomic_read(&rxq->used)); | |
1069 | } | |
1070 | ||
a8e9179a | 1071 | static void be_tx_compl_clean(struct be_adapter *adapter) |
6b7c5b94 | 1072 | { |
a8e9179a | 1073 | struct be_queue_info *tx_cq = &adapter->tx_obj.cq; |
6b7c5b94 | 1074 | struct be_queue_info *txq = &adapter->tx_obj.q; |
a8e9179a SP |
1075 | struct be_eth_tx_compl *txcp; |
1076 | u16 end_idx, cmpl = 0, timeo = 0; | |
1077 | ||
1078 | /* Wait for a max of 200ms for all the tx-completions to arrive. */ | |
1079 | do { | |
1080 | while ((txcp = be_tx_compl_get(tx_cq))) { | |
1081 | end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl, | |
1082 | wrb_index, txcp); | |
1083 | be_tx_compl_process(adapter, end_idx); | |
1084 | cmpl++; | |
1085 | } | |
1086 | if (cmpl) { | |
1087 | be_cq_notify(adapter, tx_cq->id, false, cmpl); | |
1088 | cmpl = 0; | |
1089 | } | |
1090 | ||
1091 | if (atomic_read(&txq->used) == 0 || ++timeo > 200) | |
1092 | break; | |
1093 | ||
1094 | mdelay(1); | |
1095 | } while (true); | |
1096 | ||
1097 | if (atomic_read(&txq->used)) | |
1098 | dev_err(&adapter->pdev->dev, "%d pending tx-completions\n", | |
1099 | atomic_read(&txq->used)); | |
6b7c5b94 SP |
1100 | } |
1101 | ||
5fb379ee SP |
1102 | static void be_mcc_queues_destroy(struct be_adapter *adapter) |
1103 | { | |
1104 | struct be_queue_info *q; | |
5fb379ee | 1105 | |
8788fdc2 | 1106 | q = &adapter->mcc_obj.q; |
5fb379ee | 1107 | if (q->created) |
8788fdc2 | 1108 | be_cmd_q_destroy(adapter, q, QTYPE_MCCQ); |
5fb379ee SP |
1109 | be_queue_free(adapter, q); |
1110 | ||
8788fdc2 | 1111 | q = &adapter->mcc_obj.cq; |
5fb379ee | 1112 | if (q->created) |
8788fdc2 | 1113 | be_cmd_q_destroy(adapter, q, QTYPE_CQ); |
5fb379ee SP |
1114 | be_queue_free(adapter, q); |
1115 | } | |
1116 | ||
1117 | /* Must be called only after TX qs are created as MCC shares TX EQ */ | |
1118 | static int be_mcc_queues_create(struct be_adapter *adapter) | |
1119 | { | |
1120 | struct be_queue_info *q, *cq; | |
5fb379ee SP |
1121 | |
1122 | /* Alloc MCC compl queue */ | |
8788fdc2 | 1123 | cq = &adapter->mcc_obj.cq; |
5fb379ee | 1124 | if (be_queue_alloc(adapter, cq, MCC_CQ_LEN, |
efd2e40a | 1125 | sizeof(struct be_mcc_compl))) |
5fb379ee SP |
1126 | goto err; |
1127 | ||
1128 | /* Ask BE to create MCC compl queue; share TX's eq */ | |
8788fdc2 | 1129 | if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0)) |
5fb379ee SP |
1130 | goto mcc_cq_free; |
1131 | ||
1132 | /* Alloc MCC queue */ | |
8788fdc2 | 1133 | q = &adapter->mcc_obj.q; |
5fb379ee SP |
1134 | if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb))) |
1135 | goto mcc_cq_destroy; | |
1136 | ||
1137 | /* Ask BE to create MCC queue */ | |
8788fdc2 | 1138 | if (be_cmd_mccq_create(adapter, q, cq)) |
5fb379ee SP |
1139 | goto mcc_q_free; |
1140 | ||
1141 | return 0; | |
1142 | ||
1143 | mcc_q_free: | |
1144 | be_queue_free(adapter, q); | |
1145 | mcc_cq_destroy: | |
8788fdc2 | 1146 | be_cmd_q_destroy(adapter, cq, QTYPE_CQ); |
5fb379ee SP |
1147 | mcc_cq_free: |
1148 | be_queue_free(adapter, cq); | |
1149 | err: | |
1150 | return -1; | |
1151 | } | |
1152 | ||
6b7c5b94 SP |
1153 | static void be_tx_queues_destroy(struct be_adapter *adapter) |
1154 | { | |
1155 | struct be_queue_info *q; | |
1156 | ||
1157 | q = &adapter->tx_obj.q; | |
a8e9179a | 1158 | if (q->created) |
8788fdc2 | 1159 | be_cmd_q_destroy(adapter, q, QTYPE_TXQ); |
6b7c5b94 SP |
1160 | be_queue_free(adapter, q); |
1161 | ||
1162 | q = &adapter->tx_obj.cq; | |
1163 | if (q->created) | |
8788fdc2 | 1164 | be_cmd_q_destroy(adapter, q, QTYPE_CQ); |
6b7c5b94 SP |
1165 | be_queue_free(adapter, q); |
1166 | ||
859b1e4e SP |
1167 | /* Clear any residual events */ |
1168 | be_eq_clean(adapter, &adapter->tx_eq); | |
1169 | ||
6b7c5b94 SP |
1170 | q = &adapter->tx_eq.q; |
1171 | if (q->created) | |
8788fdc2 | 1172 | be_cmd_q_destroy(adapter, q, QTYPE_EQ); |
6b7c5b94 SP |
1173 | be_queue_free(adapter, q); |
1174 | } | |
1175 | ||
1176 | static int be_tx_queues_create(struct be_adapter *adapter) | |
1177 | { | |
1178 | struct be_queue_info *eq, *q, *cq; | |
1179 | ||
1180 | adapter->tx_eq.max_eqd = 0; | |
1181 | adapter->tx_eq.min_eqd = 0; | |
1182 | adapter->tx_eq.cur_eqd = 96; | |
1183 | adapter->tx_eq.enable_aic = false; | |
1184 | /* Alloc Tx Event queue */ | |
1185 | eq = &adapter->tx_eq.q; | |
1186 | if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry))) | |
1187 | return -1; | |
1188 | ||
1189 | /* Ask BE to create Tx Event queue */ | |
8788fdc2 | 1190 | if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd)) |
6b7c5b94 SP |
1191 | goto tx_eq_free; |
1192 | /* Alloc TX eth compl queue */ | |
1193 | cq = &adapter->tx_obj.cq; | |
1194 | if (be_queue_alloc(adapter, cq, TX_CQ_LEN, | |
1195 | sizeof(struct be_eth_tx_compl))) | |
1196 | goto tx_eq_destroy; | |
1197 | ||
1198 | /* Ask BE to create Tx eth compl queue */ | |
8788fdc2 | 1199 | if (be_cmd_cq_create(adapter, cq, eq, false, false, 3)) |
6b7c5b94 SP |
1200 | goto tx_cq_free; |
1201 | ||
1202 | /* Alloc TX eth queue */ | |
1203 | q = &adapter->tx_obj.q; | |
1204 | if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb))) | |
1205 | goto tx_cq_destroy; | |
1206 | ||
1207 | /* Ask BE to create Tx eth queue */ | |
8788fdc2 | 1208 | if (be_cmd_txq_create(adapter, q, cq)) |
6b7c5b94 SP |
1209 | goto tx_q_free; |
1210 | return 0; | |
1211 | ||
1212 | tx_q_free: | |
1213 | be_queue_free(adapter, q); | |
1214 | tx_cq_destroy: | |
8788fdc2 | 1215 | be_cmd_q_destroy(adapter, cq, QTYPE_CQ); |
6b7c5b94 SP |
1216 | tx_cq_free: |
1217 | be_queue_free(adapter, cq); | |
1218 | tx_eq_destroy: | |
8788fdc2 | 1219 | be_cmd_q_destroy(adapter, eq, QTYPE_EQ); |
6b7c5b94 SP |
1220 | tx_eq_free: |
1221 | be_queue_free(adapter, eq); | |
1222 | return -1; | |
1223 | } | |
1224 | ||
1225 | static void be_rx_queues_destroy(struct be_adapter *adapter) | |
1226 | { | |
1227 | struct be_queue_info *q; | |
1228 | ||
1229 | q = &adapter->rx_obj.q; | |
1230 | if (q->created) { | |
8788fdc2 | 1231 | be_cmd_q_destroy(adapter, q, QTYPE_RXQ); |
6b7c5b94 SP |
1232 | be_rx_q_clean(adapter); |
1233 | } | |
1234 | be_queue_free(adapter, q); | |
1235 | ||
1236 | q = &adapter->rx_obj.cq; | |
1237 | if (q->created) | |
8788fdc2 | 1238 | be_cmd_q_destroy(adapter, q, QTYPE_CQ); |
6b7c5b94 SP |
1239 | be_queue_free(adapter, q); |
1240 | ||
859b1e4e SP |
1241 | /* Clear any residual events */ |
1242 | be_eq_clean(adapter, &adapter->rx_eq); | |
1243 | ||
6b7c5b94 SP |
1244 | q = &adapter->rx_eq.q; |
1245 | if (q->created) | |
8788fdc2 | 1246 | be_cmd_q_destroy(adapter, q, QTYPE_EQ); |
6b7c5b94 SP |
1247 | be_queue_free(adapter, q); |
1248 | } | |
1249 | ||
1250 | static int be_rx_queues_create(struct be_adapter *adapter) | |
1251 | { | |
1252 | struct be_queue_info *eq, *q, *cq; | |
1253 | int rc; | |
1254 | ||
6b7c5b94 SP |
1255 | adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE; |
1256 | adapter->rx_eq.max_eqd = BE_MAX_EQD; | |
1257 | adapter->rx_eq.min_eqd = 0; | |
1258 | adapter->rx_eq.cur_eqd = 0; | |
1259 | adapter->rx_eq.enable_aic = true; | |
1260 | ||
1261 | /* Alloc Rx Event queue */ | |
1262 | eq = &adapter->rx_eq.q; | |
1263 | rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN, | |
1264 | sizeof(struct be_eq_entry)); | |
1265 | if (rc) | |
1266 | return rc; | |
1267 | ||
1268 | /* Ask BE to create Rx Event queue */ | |
8788fdc2 | 1269 | rc = be_cmd_eq_create(adapter, eq, adapter->rx_eq.cur_eqd); |
6b7c5b94 SP |
1270 | if (rc) |
1271 | goto rx_eq_free; | |
1272 | ||
1273 | /* Alloc RX eth compl queue */ | |
1274 | cq = &adapter->rx_obj.cq; | |
1275 | rc = be_queue_alloc(adapter, cq, RX_CQ_LEN, | |
1276 | sizeof(struct be_eth_rx_compl)); | |
1277 | if (rc) | |
1278 | goto rx_eq_destroy; | |
1279 | ||
1280 | /* Ask BE to create Rx eth compl queue */ | |
8788fdc2 | 1281 | rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3); |
6b7c5b94 SP |
1282 | if (rc) |
1283 | goto rx_cq_free; | |
1284 | ||
1285 | /* Alloc RX eth queue */ | |
1286 | q = &adapter->rx_obj.q; | |
1287 | rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d)); | |
1288 | if (rc) | |
1289 | goto rx_cq_destroy; | |
1290 | ||
1291 | /* Ask BE to create Rx eth queue */ | |
8788fdc2 | 1292 | rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size, |
6b7c5b94 SP |
1293 | BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false); |
1294 | if (rc) | |
1295 | goto rx_q_free; | |
1296 | ||
1297 | return 0; | |
1298 | rx_q_free: | |
1299 | be_queue_free(adapter, q); | |
1300 | rx_cq_destroy: | |
8788fdc2 | 1301 | be_cmd_q_destroy(adapter, cq, QTYPE_CQ); |
6b7c5b94 SP |
1302 | rx_cq_free: |
1303 | be_queue_free(adapter, cq); | |
1304 | rx_eq_destroy: | |
8788fdc2 | 1305 | be_cmd_q_destroy(adapter, eq, QTYPE_EQ); |
6b7c5b94 SP |
1306 | rx_eq_free: |
1307 | be_queue_free(adapter, eq); | |
1308 | return rc; | |
1309 | } | |
6b7c5b94 SP |
1310 | |
1311 | static irqreturn_t be_intx(int irq, void *dev) | |
1312 | { | |
1313 | struct be_adapter *adapter = dev; | |
8788fdc2 | 1314 | int isr; |
6b7c5b94 | 1315 | |
8788fdc2 | 1316 | isr = ioread32(adapter->csr + CEV_ISR0_OFFSET + |
eec368fb | 1317 | be_pci_func(adapter) * CEV_ISR_SIZE); |
c001c213 | 1318 | if (!isr) |
8788fdc2 | 1319 | return IRQ_NONE; |
6b7c5b94 | 1320 | |
8788fdc2 SP |
1321 | event_handle(adapter, &adapter->tx_eq); |
1322 | event_handle(adapter, &adapter->rx_eq); | |
c001c213 | 1323 | |
8788fdc2 | 1324 | return IRQ_HANDLED; |
6b7c5b94 SP |
1325 | } |
1326 | ||
1327 | static irqreturn_t be_msix_rx(int irq, void *dev) | |
1328 | { | |
1329 | struct be_adapter *adapter = dev; | |
1330 | ||
8788fdc2 | 1331 | event_handle(adapter, &adapter->rx_eq); |
6b7c5b94 SP |
1332 | |
1333 | return IRQ_HANDLED; | |
1334 | } | |
1335 | ||
5fb379ee | 1336 | static irqreturn_t be_msix_tx_mcc(int irq, void *dev) |
6b7c5b94 SP |
1337 | { |
1338 | struct be_adapter *adapter = dev; | |
1339 | ||
8788fdc2 | 1340 | event_handle(adapter, &adapter->tx_eq); |
6b7c5b94 SP |
1341 | |
1342 | return IRQ_HANDLED; | |
1343 | } | |
1344 | ||
5be93b9a | 1345 | static inline bool do_gro(struct be_adapter *adapter, |
6b7c5b94 SP |
1346 | struct be_eth_rx_compl *rxcp) |
1347 | { | |
1348 | int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp); | |
1349 | int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp); | |
1350 | ||
1351 | if (err) | |
1352 | drvr_stats(adapter)->be_rxcp_err++; | |
1353 | ||
5be93b9a | 1354 | return (tcp_frame && !err) ? true : false; |
6b7c5b94 SP |
1355 | } |
1356 | ||
1357 | int be_poll_rx(struct napi_struct *napi, int budget) | |
1358 | { | |
1359 | struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi); | |
1360 | struct be_adapter *adapter = | |
1361 | container_of(rx_eq, struct be_adapter, rx_eq); | |
1362 | struct be_queue_info *rx_cq = &adapter->rx_obj.cq; | |
1363 | struct be_eth_rx_compl *rxcp; | |
1364 | u32 work_done; | |
1365 | ||
1366 | for (work_done = 0; work_done < budget; work_done++) { | |
1367 | rxcp = be_rx_compl_get(adapter); | |
1368 | if (!rxcp) | |
1369 | break; | |
1370 | ||
5be93b9a AK |
1371 | if (do_gro(adapter, rxcp)) |
1372 | be_rx_compl_process_gro(adapter, rxcp); | |
6b7c5b94 SP |
1373 | else |
1374 | be_rx_compl_process(adapter, rxcp); | |
a7a0ef31 SP |
1375 | |
1376 | be_rx_compl_reset(rxcp); | |
6b7c5b94 SP |
1377 | } |
1378 | ||
6b7c5b94 SP |
1379 | /* Refill the queue */ |
1380 | if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM) | |
1381 | be_post_rx_frags(adapter); | |
1382 | ||
1383 | /* All consumed */ | |
1384 | if (work_done < budget) { | |
1385 | napi_complete(napi); | |
8788fdc2 | 1386 | be_cq_notify(adapter, rx_cq->id, true, work_done); |
6b7c5b94 SP |
1387 | } else { |
1388 | /* More to be consumed; continue with interrupts disabled */ | |
8788fdc2 | 1389 | be_cq_notify(adapter, rx_cq->id, false, work_done); |
6b7c5b94 SP |
1390 | } |
1391 | return work_done; | |
1392 | } | |
1393 | ||
5fb379ee | 1394 | void be_process_tx(struct be_adapter *adapter) |
6b7c5b94 | 1395 | { |
5fb379ee SP |
1396 | struct be_queue_info *txq = &adapter->tx_obj.q; |
1397 | struct be_queue_info *tx_cq = &adapter->tx_obj.cq; | |
6b7c5b94 SP |
1398 | struct be_eth_tx_compl *txcp; |
1399 | u32 num_cmpl = 0; | |
1400 | u16 end_idx; | |
1401 | ||
5fb379ee | 1402 | while ((txcp = be_tx_compl_get(tx_cq))) { |
6b7c5b94 SP |
1403 | end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl, |
1404 | wrb_index, txcp); | |
1405 | be_tx_compl_process(adapter, end_idx); | |
1406 | num_cmpl++; | |
1407 | } | |
1408 | ||
5fb379ee | 1409 | if (num_cmpl) { |
8788fdc2 | 1410 | be_cq_notify(adapter, tx_cq->id, true, num_cmpl); |
5fb379ee SP |
1411 | |
1412 | /* As Tx wrbs have been freed up, wake up netdev queue if | |
1413 | * it was stopped due to lack of tx wrbs. | |
1414 | */ | |
1415 | if (netif_queue_stopped(adapter->netdev) && | |
6b7c5b94 | 1416 | atomic_read(&txq->used) < txq->len / 2) { |
5fb379ee SP |
1417 | netif_wake_queue(adapter->netdev); |
1418 | } | |
1419 | ||
1420 | drvr_stats(adapter)->be_tx_events++; | |
1421 | drvr_stats(adapter)->be_tx_compl += num_cmpl; | |
6b7c5b94 | 1422 | } |
5fb379ee SP |
1423 | } |
1424 | ||
1425 | /* As TX and MCC share the same EQ check for both TX and MCC completions. | |
1426 | * For TX/MCC we don't honour budget; consume everything | |
1427 | */ | |
1428 | static int be_poll_tx_mcc(struct napi_struct *napi, int budget) | |
1429 | { | |
1430 | struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi); | |
1431 | struct be_adapter *adapter = | |
1432 | container_of(tx_eq, struct be_adapter, tx_eq); | |
6b7c5b94 SP |
1433 | |
1434 | napi_complete(napi); | |
1435 | ||
5fb379ee | 1436 | be_process_tx(adapter); |
6b7c5b94 | 1437 | |
8788fdc2 | 1438 | be_process_mcc(adapter); |
6b7c5b94 SP |
1439 | |
1440 | return 1; | |
1441 | } | |
1442 | ||
ea1dae11 SP |
1443 | static void be_worker(struct work_struct *work) |
1444 | { | |
1445 | struct be_adapter *adapter = | |
1446 | container_of(work, struct be_adapter, work.work); | |
1447 | int status; | |
1448 | ||
ea1dae11 | 1449 | /* Get Stats */ |
8788fdc2 | 1450 | status = be_cmd_get_stats(adapter, &adapter->stats.cmd); |
ea1dae11 SP |
1451 | if (!status) |
1452 | netdev_stats_update(adapter); | |
1453 | ||
1454 | /* Set EQ delay */ | |
1455 | be_rx_eqd_update(adapter); | |
1456 | ||
4097f663 SP |
1457 | be_tx_rate_update(adapter); |
1458 | be_rx_rate_update(adapter); | |
1459 | ||
ea1dae11 SP |
1460 | if (adapter->rx_post_starved) { |
1461 | adapter->rx_post_starved = false; | |
1462 | be_post_rx_frags(adapter); | |
1463 | } | |
1464 | ||
1465 | schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000)); | |
1466 | } | |
1467 | ||
6b7c5b94 SP |
1468 | static void be_msix_enable(struct be_adapter *adapter) |
1469 | { | |
1470 | int i, status; | |
1471 | ||
1472 | for (i = 0; i < BE_NUM_MSIX_VECTORS; i++) | |
1473 | adapter->msix_entries[i].entry = i; | |
1474 | ||
1475 | status = pci_enable_msix(adapter->pdev, adapter->msix_entries, | |
1476 | BE_NUM_MSIX_VECTORS); | |
1477 | if (status == 0) | |
1478 | adapter->msix_enabled = true; | |
1479 | return; | |
1480 | } | |
1481 | ||
1482 | static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id) | |
1483 | { | |
eec368fb | 1484 | return adapter->msix_entries[eq_id - 8 * be_pci_func(adapter)].vector; |
6b7c5b94 SP |
1485 | } |
1486 | ||
1487 | static int be_msix_register(struct be_adapter *adapter) | |
1488 | { | |
1489 | struct net_device *netdev = adapter->netdev; | |
1490 | struct be_eq_obj *tx_eq = &adapter->tx_eq; | |
1491 | struct be_eq_obj *rx_eq = &adapter->rx_eq; | |
1492 | int status, vec; | |
1493 | ||
1494 | sprintf(tx_eq->desc, "%s-tx", netdev->name); | |
1495 | vec = be_msix_vec_get(adapter, tx_eq->q.id); | |
5fb379ee | 1496 | status = request_irq(vec, be_msix_tx_mcc, 0, tx_eq->desc, adapter); |
6b7c5b94 SP |
1497 | if (status) |
1498 | goto err; | |
1499 | ||
1500 | sprintf(rx_eq->desc, "%s-rx", netdev->name); | |
1501 | vec = be_msix_vec_get(adapter, rx_eq->q.id); | |
1502 | status = request_irq(vec, be_msix_rx, 0, rx_eq->desc, adapter); | |
1503 | if (status) { /* Free TX IRQ */ | |
1504 | vec = be_msix_vec_get(adapter, tx_eq->q.id); | |
1505 | free_irq(vec, adapter); | |
1506 | goto err; | |
1507 | } | |
1508 | return 0; | |
1509 | err: | |
1510 | dev_warn(&adapter->pdev->dev, | |
1511 | "MSIX Request IRQ failed - err %d\n", status); | |
1512 | pci_disable_msix(adapter->pdev); | |
1513 | adapter->msix_enabled = false; | |
1514 | return status; | |
1515 | } | |
1516 | ||
1517 | static int be_irq_register(struct be_adapter *adapter) | |
1518 | { | |
1519 | struct net_device *netdev = adapter->netdev; | |
1520 | int status; | |
1521 | ||
1522 | if (adapter->msix_enabled) { | |
1523 | status = be_msix_register(adapter); | |
1524 | if (status == 0) | |
1525 | goto done; | |
1526 | } | |
1527 | ||
1528 | /* INTx */ | |
1529 | netdev->irq = adapter->pdev->irq; | |
1530 | status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name, | |
1531 | adapter); | |
1532 | if (status) { | |
1533 | dev_err(&adapter->pdev->dev, | |
1534 | "INTx request IRQ failed - err %d\n", status); | |
1535 | return status; | |
1536 | } | |
1537 | done: | |
1538 | adapter->isr_registered = true; | |
1539 | return 0; | |
1540 | } | |
1541 | ||
1542 | static void be_irq_unregister(struct be_adapter *adapter) | |
1543 | { | |
1544 | struct net_device *netdev = adapter->netdev; | |
1545 | int vec; | |
1546 | ||
1547 | if (!adapter->isr_registered) | |
1548 | return; | |
1549 | ||
1550 | /* INTx */ | |
1551 | if (!adapter->msix_enabled) { | |
1552 | free_irq(netdev->irq, adapter); | |
1553 | goto done; | |
1554 | } | |
1555 | ||
1556 | /* MSIx */ | |
1557 | vec = be_msix_vec_get(adapter, adapter->tx_eq.q.id); | |
1558 | free_irq(vec, adapter); | |
1559 | vec = be_msix_vec_get(adapter, adapter->rx_eq.q.id); | |
1560 | free_irq(vec, adapter); | |
1561 | done: | |
1562 | adapter->isr_registered = false; | |
1563 | return; | |
1564 | } | |
1565 | ||
1566 | static int be_open(struct net_device *netdev) | |
1567 | { | |
1568 | struct be_adapter *adapter = netdev_priv(netdev); | |
6b7c5b94 SP |
1569 | struct be_eq_obj *rx_eq = &adapter->rx_eq; |
1570 | struct be_eq_obj *tx_eq = &adapter->tx_eq; | |
a8f447bd SP |
1571 | bool link_up; |
1572 | int status; | |
5fb379ee SP |
1573 | |
1574 | /* First time posting */ | |
1575 | be_post_rx_frags(adapter); | |
1576 | ||
1577 | napi_enable(&rx_eq->napi); | |
1578 | napi_enable(&tx_eq->napi); | |
1579 | ||
1580 | be_irq_register(adapter); | |
1581 | ||
8788fdc2 | 1582 | be_intr_set(adapter, true); |
5fb379ee SP |
1583 | |
1584 | /* The evt queues are created in unarmed state; arm them */ | |
8788fdc2 SP |
1585 | be_eq_notify(adapter, rx_eq->q.id, true, false, 0); |
1586 | be_eq_notify(adapter, tx_eq->q.id, true, false, 0); | |
5fb379ee SP |
1587 | |
1588 | /* Rx compl queue may be in unarmed state; rearm it */ | |
8788fdc2 | 1589 | be_cq_notify(adapter, adapter->rx_obj.cq.id, true, 0); |
5fb379ee | 1590 | |
8788fdc2 | 1591 | status = be_cmd_link_status_query(adapter, &link_up); |
a8f447bd SP |
1592 | if (status) |
1593 | return status; | |
1594 | be_link_status_update(adapter, link_up); | |
5fb379ee SP |
1595 | |
1596 | schedule_delayed_work(&adapter->work, msecs_to_jiffies(100)); | |
1597 | return 0; | |
1598 | } | |
1599 | ||
1600 | static int be_setup(struct be_adapter *adapter) | |
1601 | { | |
5fb379ee | 1602 | struct net_device *netdev = adapter->netdev; |
6b7c5b94 SP |
1603 | u32 if_flags; |
1604 | int status; | |
1605 | ||
1606 | if_flags = BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_PROMISCUOUS | | |
1607 | BE_IF_FLAGS_MCAST_PROMISCUOUS | BE_IF_FLAGS_UNTAGGED | | |
1608 | BE_IF_FLAGS_PASS_L3L4_ERRORS; | |
8788fdc2 | 1609 | status = be_cmd_if_create(adapter, if_flags, netdev->dev_addr, |
6b7c5b94 SP |
1610 | false/* pmac_invalid */, &adapter->if_handle, |
1611 | &adapter->pmac_id); | |
1612 | if (status != 0) | |
1613 | goto do_none; | |
1614 | ||
1ab1ab75 SP |
1615 | be_vid_config(netdev); |
1616 | ||
8788fdc2 | 1617 | status = be_cmd_set_flow_control(adapter, true, true); |
6b7c5b94 SP |
1618 | if (status != 0) |
1619 | goto if_destroy; | |
1620 | ||
1621 | status = be_tx_queues_create(adapter); | |
1622 | if (status != 0) | |
1623 | goto if_destroy; | |
1624 | ||
1625 | status = be_rx_queues_create(adapter); | |
1626 | if (status != 0) | |
1627 | goto tx_qs_destroy; | |
1628 | ||
5fb379ee SP |
1629 | status = be_mcc_queues_create(adapter); |
1630 | if (status != 0) | |
1631 | goto rx_qs_destroy; | |
6b7c5b94 | 1632 | |
6b7c5b94 SP |
1633 | return 0; |
1634 | ||
5fb379ee SP |
1635 | rx_qs_destroy: |
1636 | be_rx_queues_destroy(adapter); | |
6b7c5b94 SP |
1637 | tx_qs_destroy: |
1638 | be_tx_queues_destroy(adapter); | |
1639 | if_destroy: | |
8788fdc2 | 1640 | be_cmd_if_destroy(adapter, adapter->if_handle); |
6b7c5b94 SP |
1641 | do_none: |
1642 | return status; | |
1643 | } | |
1644 | ||
5fb379ee SP |
1645 | static int be_clear(struct be_adapter *adapter) |
1646 | { | |
5fb379ee SP |
1647 | be_rx_queues_destroy(adapter); |
1648 | be_tx_queues_destroy(adapter); | |
1649 | ||
8788fdc2 | 1650 | be_cmd_if_destroy(adapter, adapter->if_handle); |
5fb379ee SP |
1651 | |
1652 | be_mcc_queues_destroy(adapter); | |
1653 | return 0; | |
1654 | } | |
1655 | ||
6b7c5b94 SP |
1656 | static int be_close(struct net_device *netdev) |
1657 | { | |
1658 | struct be_adapter *adapter = netdev_priv(netdev); | |
6b7c5b94 SP |
1659 | struct be_eq_obj *rx_eq = &adapter->rx_eq; |
1660 | struct be_eq_obj *tx_eq = &adapter->tx_eq; | |
1661 | int vec; | |
1662 | ||
b305be78 | 1663 | cancel_delayed_work_sync(&adapter->work); |
6b7c5b94 SP |
1664 | |
1665 | netif_stop_queue(netdev); | |
1666 | netif_carrier_off(netdev); | |
a8f447bd | 1667 | adapter->link_up = false; |
6b7c5b94 | 1668 | |
8788fdc2 | 1669 | be_intr_set(adapter, false); |
6b7c5b94 SP |
1670 | |
1671 | if (adapter->msix_enabled) { | |
1672 | vec = be_msix_vec_get(adapter, tx_eq->q.id); | |
1673 | synchronize_irq(vec); | |
1674 | vec = be_msix_vec_get(adapter, rx_eq->q.id); | |
1675 | synchronize_irq(vec); | |
1676 | } else { | |
1677 | synchronize_irq(netdev->irq); | |
1678 | } | |
1679 | be_irq_unregister(adapter); | |
1680 | ||
1681 | napi_disable(&rx_eq->napi); | |
1682 | napi_disable(&tx_eq->napi); | |
1683 | ||
a8e9179a SP |
1684 | /* Wait for all pending tx completions to arrive so that |
1685 | * all tx skbs are freed. | |
1686 | */ | |
1687 | be_tx_compl_clean(adapter); | |
1688 | ||
6b7c5b94 SP |
1689 | return 0; |
1690 | } | |
1691 | ||
6b7c5b94 SP |
1692 | static struct net_device_ops be_netdev_ops = { |
1693 | .ndo_open = be_open, | |
1694 | .ndo_stop = be_close, | |
1695 | .ndo_start_xmit = be_xmit, | |
1696 | .ndo_get_stats = be_get_stats, | |
1697 | .ndo_set_rx_mode = be_set_multicast_list, | |
1698 | .ndo_set_mac_address = be_mac_addr_set, | |
1699 | .ndo_change_mtu = be_change_mtu, | |
1700 | .ndo_validate_addr = eth_validate_addr, | |
1701 | .ndo_vlan_rx_register = be_vlan_register, | |
1702 | .ndo_vlan_rx_add_vid = be_vlan_add_vid, | |
1703 | .ndo_vlan_rx_kill_vid = be_vlan_rem_vid, | |
1704 | }; | |
1705 | ||
1706 | static void be_netdev_init(struct net_device *netdev) | |
1707 | { | |
1708 | struct be_adapter *adapter = netdev_priv(netdev); | |
1709 | ||
1710 | netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO | | |
1711 | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_IP_CSUM | | |
5be93b9a | 1712 | NETIF_F_IPV6_CSUM | NETIF_F_GRO; |
6b7c5b94 SP |
1713 | |
1714 | netdev->flags |= IFF_MULTICAST; | |
1715 | ||
728a9972 AK |
1716 | adapter->rx_csum = true; |
1717 | ||
6b7c5b94 SP |
1718 | BE_SET_NETDEV_OPS(netdev, &be_netdev_ops); |
1719 | ||
1720 | SET_ETHTOOL_OPS(netdev, &be_ethtool_ops); | |
1721 | ||
6b7c5b94 SP |
1722 | netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx, |
1723 | BE_NAPI_WEIGHT); | |
5fb379ee | 1724 | netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc, |
6b7c5b94 SP |
1725 | BE_NAPI_WEIGHT); |
1726 | ||
1727 | netif_carrier_off(netdev); | |
1728 | netif_stop_queue(netdev); | |
1729 | } | |
1730 | ||
1731 | static void be_unmap_pci_bars(struct be_adapter *adapter) | |
1732 | { | |
8788fdc2 SP |
1733 | if (adapter->csr) |
1734 | iounmap(adapter->csr); | |
1735 | if (adapter->db) | |
1736 | iounmap(adapter->db); | |
1737 | if (adapter->pcicfg) | |
1738 | iounmap(adapter->pcicfg); | |
6b7c5b94 SP |
1739 | } |
1740 | ||
1741 | static int be_map_pci_bars(struct be_adapter *adapter) | |
1742 | { | |
1743 | u8 __iomem *addr; | |
1744 | ||
1745 | addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2), | |
1746 | pci_resource_len(adapter->pdev, 2)); | |
1747 | if (addr == NULL) | |
1748 | return -ENOMEM; | |
8788fdc2 | 1749 | adapter->csr = addr; |
6b7c5b94 SP |
1750 | |
1751 | addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4), | |
1752 | 128 * 1024); | |
1753 | if (addr == NULL) | |
1754 | goto pci_map_err; | |
8788fdc2 | 1755 | adapter->db = addr; |
6b7c5b94 SP |
1756 | |
1757 | addr = ioremap_nocache(pci_resource_start(adapter->pdev, 1), | |
1758 | pci_resource_len(adapter->pdev, 1)); | |
1759 | if (addr == NULL) | |
1760 | goto pci_map_err; | |
8788fdc2 | 1761 | adapter->pcicfg = addr; |
6b7c5b94 SP |
1762 | |
1763 | return 0; | |
1764 | pci_map_err: | |
1765 | be_unmap_pci_bars(adapter); | |
1766 | return -ENOMEM; | |
1767 | } | |
1768 | ||
1769 | ||
1770 | static void be_ctrl_cleanup(struct be_adapter *adapter) | |
1771 | { | |
8788fdc2 | 1772 | struct be_dma_mem *mem = &adapter->mbox_mem_alloced; |
6b7c5b94 SP |
1773 | |
1774 | be_unmap_pci_bars(adapter); | |
1775 | ||
1776 | if (mem->va) | |
1777 | pci_free_consistent(adapter->pdev, mem->size, | |
1778 | mem->va, mem->dma); | |
1779 | } | |
1780 | ||
6b7c5b94 SP |
1781 | static int be_ctrl_init(struct be_adapter *adapter) |
1782 | { | |
8788fdc2 SP |
1783 | struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced; |
1784 | struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem; | |
6b7c5b94 | 1785 | int status; |
6b7c5b94 SP |
1786 | |
1787 | status = be_map_pci_bars(adapter); | |
1788 | if (status) | |
1789 | return status; | |
1790 | ||
1791 | mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; | |
1792 | mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev, | |
1793 | mbox_mem_alloc->size, &mbox_mem_alloc->dma); | |
1794 | if (!mbox_mem_alloc->va) { | |
1795 | be_unmap_pci_bars(adapter); | |
1796 | return -1; | |
1797 | } | |
1798 | mbox_mem_align->size = sizeof(struct be_mcc_mailbox); | |
1799 | mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); | |
1800 | mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); | |
1801 | memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); | |
8788fdc2 SP |
1802 | spin_lock_init(&adapter->mbox_lock); |
1803 | spin_lock_init(&adapter->mcc_lock); | |
1804 | spin_lock_init(&adapter->mcc_cq_lock); | |
a8f447bd | 1805 | |
6b7c5b94 SP |
1806 | return 0; |
1807 | } | |
1808 | ||
1809 | static void be_stats_cleanup(struct be_adapter *adapter) | |
1810 | { | |
1811 | struct be_stats_obj *stats = &adapter->stats; | |
1812 | struct be_dma_mem *cmd = &stats->cmd; | |
1813 | ||
1814 | if (cmd->va) | |
1815 | pci_free_consistent(adapter->pdev, cmd->size, | |
1816 | cmd->va, cmd->dma); | |
1817 | } | |
1818 | ||
1819 | static int be_stats_init(struct be_adapter *adapter) | |
1820 | { | |
1821 | struct be_stats_obj *stats = &adapter->stats; | |
1822 | struct be_dma_mem *cmd = &stats->cmd; | |
1823 | ||
1824 | cmd->size = sizeof(struct be_cmd_req_get_stats); | |
1825 | cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma); | |
1826 | if (cmd->va == NULL) | |
1827 | return -1; | |
1828 | return 0; | |
1829 | } | |
1830 | ||
1831 | static void __devexit be_remove(struct pci_dev *pdev) | |
1832 | { | |
1833 | struct be_adapter *adapter = pci_get_drvdata(pdev); | |
1834 | if (!adapter) | |
1835 | return; | |
1836 | ||
1837 | unregister_netdev(adapter->netdev); | |
1838 | ||
5fb379ee SP |
1839 | be_clear(adapter); |
1840 | ||
6b7c5b94 SP |
1841 | be_stats_cleanup(adapter); |
1842 | ||
1843 | be_ctrl_cleanup(adapter); | |
1844 | ||
1845 | if (adapter->msix_enabled) { | |
1846 | pci_disable_msix(adapter->pdev); | |
1847 | adapter->msix_enabled = false; | |
1848 | } | |
1849 | ||
1850 | pci_set_drvdata(pdev, NULL); | |
1851 | pci_release_regions(pdev); | |
1852 | pci_disable_device(pdev); | |
1853 | ||
1854 | free_netdev(adapter->netdev); | |
1855 | } | |
1856 | ||
1857 | static int be_hw_up(struct be_adapter *adapter) | |
1858 | { | |
6b7c5b94 SP |
1859 | int status; |
1860 | ||
8788fdc2 | 1861 | status = be_cmd_POST(adapter); |
6b7c5b94 SP |
1862 | if (status) |
1863 | return status; | |
1864 | ||
8788fdc2 | 1865 | status = be_cmd_get_fw_ver(adapter, adapter->fw_ver); |
6b7c5b94 SP |
1866 | if (status) |
1867 | return status; | |
1868 | ||
8788fdc2 | 1869 | status = be_cmd_query_fw_cfg(adapter, &adapter->port_num); |
6b7c5b94 SP |
1870 | return status; |
1871 | } | |
1872 | ||
1873 | static int __devinit be_probe(struct pci_dev *pdev, | |
1874 | const struct pci_device_id *pdev_id) | |
1875 | { | |
1876 | int status = 0; | |
1877 | struct be_adapter *adapter; | |
1878 | struct net_device *netdev; | |
6b7c5b94 SP |
1879 | u8 mac[ETH_ALEN]; |
1880 | ||
1881 | status = pci_enable_device(pdev); | |
1882 | if (status) | |
1883 | goto do_none; | |
1884 | ||
1885 | status = pci_request_regions(pdev, DRV_NAME); | |
1886 | if (status) | |
1887 | goto disable_dev; | |
1888 | pci_set_master(pdev); | |
1889 | ||
1890 | netdev = alloc_etherdev(sizeof(struct be_adapter)); | |
1891 | if (netdev == NULL) { | |
1892 | status = -ENOMEM; | |
1893 | goto rel_reg; | |
1894 | } | |
1895 | adapter = netdev_priv(netdev); | |
1896 | adapter->pdev = pdev; | |
1897 | pci_set_drvdata(pdev, adapter); | |
1898 | adapter->netdev = netdev; | |
1899 | ||
1900 | be_msix_enable(adapter); | |
1901 | ||
e930438c | 1902 | status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
6b7c5b94 SP |
1903 | if (!status) { |
1904 | netdev->features |= NETIF_F_HIGHDMA; | |
1905 | } else { | |
e930438c | 1906 | status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
6b7c5b94 SP |
1907 | if (status) { |
1908 | dev_err(&pdev->dev, "Could not set PCI DMA Mask\n"); | |
1909 | goto free_netdev; | |
1910 | } | |
1911 | } | |
1912 | ||
6b7c5b94 SP |
1913 | status = be_ctrl_init(adapter); |
1914 | if (status) | |
1915 | goto free_netdev; | |
1916 | ||
14074eab | 1917 | status = be_cmd_reset_function(adapter); |
1918 | if (status) | |
1919 | goto ctrl_clean; | |
1920 | ||
6b7c5b94 SP |
1921 | status = be_stats_init(adapter); |
1922 | if (status) | |
1923 | goto ctrl_clean; | |
1924 | ||
1925 | status = be_hw_up(adapter); | |
1926 | if (status) | |
1927 | goto stats_clean; | |
1928 | ||
8788fdc2 | 1929 | status = be_cmd_mac_addr_query(adapter, mac, MAC_ADDRESS_TYPE_NETWORK, |
6b7c5b94 SP |
1930 | true /* permanent */, 0); |
1931 | if (status) | |
1932 | goto stats_clean; | |
1933 | memcpy(netdev->dev_addr, mac, ETH_ALEN); | |
1934 | ||
1935 | INIT_DELAYED_WORK(&adapter->work, be_worker); | |
1936 | be_netdev_init(netdev); | |
1937 | SET_NETDEV_DEV(netdev, &adapter->pdev->dev); | |
1938 | ||
5fb379ee SP |
1939 | status = be_setup(adapter); |
1940 | if (status) | |
1941 | goto stats_clean; | |
6b7c5b94 SP |
1942 | status = register_netdev(netdev); |
1943 | if (status != 0) | |
5fb379ee | 1944 | goto unsetup; |
6b7c5b94 | 1945 | |
c4ca2374 | 1946 | dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num); |
6b7c5b94 SP |
1947 | return 0; |
1948 | ||
5fb379ee SP |
1949 | unsetup: |
1950 | be_clear(adapter); | |
6b7c5b94 SP |
1951 | stats_clean: |
1952 | be_stats_cleanup(adapter); | |
1953 | ctrl_clean: | |
1954 | be_ctrl_cleanup(adapter); | |
1955 | free_netdev: | |
1956 | free_netdev(adapter->netdev); | |
1957 | rel_reg: | |
1958 | pci_release_regions(pdev); | |
1959 | disable_dev: | |
1960 | pci_disable_device(pdev); | |
1961 | do_none: | |
c4ca2374 | 1962 | dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev)); |
6b7c5b94 SP |
1963 | return status; |
1964 | } | |
1965 | ||
1966 | static int be_suspend(struct pci_dev *pdev, pm_message_t state) | |
1967 | { | |
1968 | struct be_adapter *adapter = pci_get_drvdata(pdev); | |
1969 | struct net_device *netdev = adapter->netdev; | |
1970 | ||
1971 | netif_device_detach(netdev); | |
1972 | if (netif_running(netdev)) { | |
1973 | rtnl_lock(); | |
1974 | be_close(netdev); | |
5fb379ee | 1975 | be_clear(adapter); |
6b7c5b94 SP |
1976 | rtnl_unlock(); |
1977 | } | |
1978 | ||
1979 | pci_save_state(pdev); | |
1980 | pci_disable_device(pdev); | |
1981 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
1982 | return 0; | |
1983 | } | |
1984 | ||
1985 | static int be_resume(struct pci_dev *pdev) | |
1986 | { | |
1987 | int status = 0; | |
1988 | struct be_adapter *adapter = pci_get_drvdata(pdev); | |
1989 | struct net_device *netdev = adapter->netdev; | |
1990 | ||
1991 | netif_device_detach(netdev); | |
1992 | ||
1993 | status = pci_enable_device(pdev); | |
1994 | if (status) | |
1995 | return status; | |
1996 | ||
1997 | pci_set_power_state(pdev, 0); | |
1998 | pci_restore_state(pdev); | |
1999 | ||
6b7c5b94 SP |
2000 | if (netif_running(netdev)) { |
2001 | rtnl_lock(); | |
5fb379ee | 2002 | be_setup(adapter); |
6b7c5b94 SP |
2003 | be_open(netdev); |
2004 | rtnl_unlock(); | |
2005 | } | |
2006 | netif_device_attach(netdev); | |
2007 | return 0; | |
2008 | } | |
2009 | ||
2010 | static struct pci_driver be_driver = { | |
2011 | .name = DRV_NAME, | |
2012 | .id_table = be_dev_ids, | |
2013 | .probe = be_probe, | |
2014 | .remove = be_remove, | |
2015 | .suspend = be_suspend, | |
2016 | .resume = be_resume | |
2017 | }; | |
2018 | ||
2019 | static int __init be_init_module(void) | |
2020 | { | |
2021 | if (rx_frag_size != 8192 && rx_frag_size != 4096 | |
2022 | && rx_frag_size != 2048) { | |
2023 | printk(KERN_WARNING DRV_NAME | |
2024 | " : Module param rx_frag_size must be 2048/4096/8192." | |
2025 | " Using 2048\n"); | |
2026 | rx_frag_size = 2048; | |
2027 | } | |
6b7c5b94 SP |
2028 | |
2029 | return pci_register_driver(&be_driver); | |
2030 | } | |
2031 | module_init(be_init_module); | |
2032 | ||
2033 | static void __exit be_exit_module(void) | |
2034 | { | |
2035 | pci_unregister_driver(&be_driver); | |
2036 | } | |
2037 | module_exit(be_exit_module); |