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9f6c9258 DK |
1 | /* bnx2x_cmn.c: Broadcom Everest network driver. |
2 | * | |
247fa82b | 3 | * Copyright (c) 2007-2013 Broadcom Corporation |
9f6c9258 DK |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation. | |
8 | * | |
08f6dd89 | 9 | * Maintained by: Ariel Elior <ariel.elior@qlogic.com> |
9f6c9258 DK |
10 | * Written by: Eliezer Tamir |
11 | * Based on code from Michael Chan's bnx2 driver | |
12 | * UDP CSUM errata workaround by Arik Gendelman | |
13 | * Slowpath and fastpath rework by Vladislav Zolotarov | |
14 | * Statistics and Link management by Yitchak Gertner | |
15 | * | |
16 | */ | |
17 | ||
f1deab50 JP |
18 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
19 | ||
9f6c9258 | 20 | #include <linux/etherdevice.h> |
9bcc0893 | 21 | #include <linux/if_vlan.h> |
a6b7a407 | 22 | #include <linux/interrupt.h> |
9f6c9258 | 23 | #include <linux/ip.h> |
c9931896 | 24 | #include <linux/crash_dump.h> |
9969085e | 25 | #include <net/tcp.h> |
f2e0899f | 26 | #include <net/ipv6.h> |
7f3e01fe | 27 | #include <net/ip6_checksum.h> |
076bb0c8 | 28 | #include <net/busy_poll.h> |
c0cba59e | 29 | #include <linux/prefetch.h> |
9f6c9258 | 30 | #include "bnx2x_cmn.h" |
523224a3 | 31 | #include "bnx2x_init.h" |
042181f5 | 32 | #include "bnx2x_sp.h" |
9f6c9258 | 33 | |
a8f47eb7 | 34 | static void bnx2x_free_fp_mem_cnic(struct bnx2x *bp); |
35 | static int bnx2x_alloc_fp_mem_cnic(struct bnx2x *bp); | |
36 | static int bnx2x_alloc_fp_mem(struct bnx2x *bp); | |
37 | static int bnx2x_poll(struct napi_struct *napi, int budget); | |
38 | ||
39 | static void bnx2x_add_all_napi_cnic(struct bnx2x *bp) | |
40 | { | |
41 | int i; | |
42 | ||
43 | /* Add NAPI objects */ | |
44 | for_each_rx_queue_cnic(bp, i) { | |
45 | netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi), | |
46 | bnx2x_poll, NAPI_POLL_WEIGHT); | |
47 | napi_hash_add(&bnx2x_fp(bp, i, napi)); | |
48 | } | |
49 | } | |
50 | ||
51 | static void bnx2x_add_all_napi(struct bnx2x *bp) | |
52 | { | |
53 | int i; | |
54 | ||
55 | /* Add NAPI objects */ | |
56 | for_each_eth_queue(bp, i) { | |
57 | netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi), | |
58 | bnx2x_poll, NAPI_POLL_WEIGHT); | |
59 | napi_hash_add(&bnx2x_fp(bp, i, napi)); | |
60 | } | |
61 | } | |
62 | ||
63 | static int bnx2x_calc_num_queues(struct bnx2x *bp) | |
64 | { | |
7d0445d6 | 65 | int nq = bnx2x_num_queues ? : netif_get_num_default_rss_queues(); |
ff2ad307 MS |
66 | |
67 | /* Reduce memory usage in kdump environment by using only one queue */ | |
c9931896 | 68 | if (is_kdump_kernel()) |
ff2ad307 MS |
69 | nq = 1; |
70 | ||
7d0445d6 MS |
71 | nq = clamp(nq, 1, BNX2X_MAX_QUEUES(bp)); |
72 | return nq; | |
a8f47eb7 | 73 | } |
74 | ||
b3b83c3f DK |
75 | /** |
76 | * bnx2x_move_fp - move content of the fastpath structure. | |
77 | * | |
78 | * @bp: driver handle | |
79 | * @from: source FP index | |
80 | * @to: destination FP index | |
81 | * | |
82 | * Makes sure the contents of the bp->fp[to].napi is kept | |
72754080 AE |
83 | * intact. This is done by first copying the napi struct from |
84 | * the target to the source, and then mem copying the entire | |
65565884 MS |
85 | * source onto the target. Update txdata pointers and related |
86 | * content. | |
b3b83c3f DK |
87 | */ |
88 | static inline void bnx2x_move_fp(struct bnx2x *bp, int from, int to) | |
89 | { | |
90 | struct bnx2x_fastpath *from_fp = &bp->fp[from]; | |
91 | struct bnx2x_fastpath *to_fp = &bp->fp[to]; | |
15192a8c BW |
92 | struct bnx2x_sp_objs *from_sp_objs = &bp->sp_objs[from]; |
93 | struct bnx2x_sp_objs *to_sp_objs = &bp->sp_objs[to]; | |
94 | struct bnx2x_fp_stats *from_fp_stats = &bp->fp_stats[from]; | |
95 | struct bnx2x_fp_stats *to_fp_stats = &bp->fp_stats[to]; | |
65565884 MS |
96 | int old_max_eth_txqs, new_max_eth_txqs; |
97 | int old_txdata_index = 0, new_txdata_index = 0; | |
34d5626a | 98 | struct bnx2x_agg_info *old_tpa_info = to_fp->tpa_info; |
72754080 AE |
99 | |
100 | /* Copy the NAPI object as it has been already initialized */ | |
101 | from_fp->napi = to_fp->napi; | |
102 | ||
b3b83c3f DK |
103 | /* Move bnx2x_fastpath contents */ |
104 | memcpy(to_fp, from_fp, sizeof(*to_fp)); | |
105 | to_fp->index = to; | |
65565884 | 106 | |
34d5626a YM |
107 | /* Retain the tpa_info of the original `to' version as we don't want |
108 | * 2 FPs to contain the same tpa_info pointer. | |
109 | */ | |
110 | to_fp->tpa_info = old_tpa_info; | |
111 | ||
15192a8c BW |
112 | /* move sp_objs contents as well, as their indices match fp ones */ |
113 | memcpy(to_sp_objs, from_sp_objs, sizeof(*to_sp_objs)); | |
114 | ||
115 | /* move fp_stats contents as well, as their indices match fp ones */ | |
116 | memcpy(to_fp_stats, from_fp_stats, sizeof(*to_fp_stats)); | |
117 | ||
65565884 MS |
118 | /* Update txdata pointers in fp and move txdata content accordingly: |
119 | * Each fp consumes 'max_cos' txdata structures, so the index should be | |
120 | * decremented by max_cos x delta. | |
121 | */ | |
122 | ||
123 | old_max_eth_txqs = BNX2X_NUM_ETH_QUEUES(bp) * (bp)->max_cos; | |
124 | new_max_eth_txqs = (BNX2X_NUM_ETH_QUEUES(bp) - from + to) * | |
125 | (bp)->max_cos; | |
126 | if (from == FCOE_IDX(bp)) { | |
127 | old_txdata_index = old_max_eth_txqs + FCOE_TXQ_IDX_OFFSET; | |
128 | new_txdata_index = new_max_eth_txqs + FCOE_TXQ_IDX_OFFSET; | |
129 | } | |
130 | ||
4864a16a YM |
131 | memcpy(&bp->bnx2x_txq[new_txdata_index], |
132 | &bp->bnx2x_txq[old_txdata_index], | |
65565884 MS |
133 | sizeof(struct bnx2x_fp_txdata)); |
134 | to_fp->txdata_ptr[0] = &bp->bnx2x_txq[new_txdata_index]; | |
b3b83c3f DK |
135 | } |
136 | ||
8ca5e17e AE |
137 | /** |
138 | * bnx2x_fill_fw_str - Fill buffer with FW version string. | |
139 | * | |
140 | * @bp: driver handle | |
141 | * @buf: character buffer to fill with the fw name | |
142 | * @buf_len: length of the above buffer | |
143 | * | |
144 | */ | |
145 | void bnx2x_fill_fw_str(struct bnx2x *bp, char *buf, size_t buf_len) | |
146 | { | |
147 | if (IS_PF(bp)) { | |
148 | u8 phy_fw_ver[PHY_FW_VER_LEN]; | |
149 | ||
150 | phy_fw_ver[0] = '\0'; | |
151 | bnx2x_get_ext_phy_fw_version(&bp->link_params, | |
152 | phy_fw_ver, PHY_FW_VER_LEN); | |
153 | strlcpy(buf, bp->fw_ver, buf_len); | |
154 | snprintf(buf + strlen(bp->fw_ver), 32 - strlen(bp->fw_ver), | |
155 | "bc %d.%d.%d%s%s", | |
156 | (bp->common.bc_ver & 0xff0000) >> 16, | |
157 | (bp->common.bc_ver & 0xff00) >> 8, | |
158 | (bp->common.bc_ver & 0xff), | |
159 | ((phy_fw_ver[0] != '\0') ? " phy " : ""), phy_fw_ver); | |
160 | } else { | |
6411280a | 161 | bnx2x_vf_fill_fw_str(bp, buf, buf_len); |
8ca5e17e AE |
162 | } |
163 | } | |
164 | ||
4864a16a YM |
165 | /** |
166 | * bnx2x_shrink_eth_fp - guarantees fastpath structures stay intact | |
167 | * | |
168 | * @bp: driver handle | |
169 | * @delta: number of eth queues which were not allocated | |
170 | */ | |
171 | static void bnx2x_shrink_eth_fp(struct bnx2x *bp, int delta) | |
172 | { | |
173 | int i, cos, old_eth_num = BNX2X_NUM_ETH_QUEUES(bp); | |
174 | ||
175 | /* Queue pointer cannot be re-set on an fp-basis, as moving pointer | |
16a5fd92 | 176 | * backward along the array could cause memory to be overridden |
4864a16a YM |
177 | */ |
178 | for (cos = 1; cos < bp->max_cos; cos++) { | |
179 | for (i = 0; i < old_eth_num - delta; i++) { | |
180 | struct bnx2x_fastpath *fp = &bp->fp[i]; | |
181 | int new_idx = cos * (old_eth_num - delta) + i; | |
182 | ||
183 | memcpy(&bp->bnx2x_txq[new_idx], fp->txdata_ptr[cos], | |
184 | sizeof(struct bnx2x_fp_txdata)); | |
185 | fp->txdata_ptr[cos] = &bp->bnx2x_txq[new_idx]; | |
186 | } | |
187 | } | |
188 | } | |
189 | ||
a8f47eb7 | 190 | int bnx2x_load_count[2][3] = { {0} }; /* per-path: 0-common, 1-port0, 2-port1 */ |
619c5cb6 | 191 | |
9f6c9258 DK |
192 | /* free skb in the packet ring at pos idx |
193 | * return idx of last bd freed | |
194 | */ | |
6383c0b3 | 195 | static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata, |
2df1a70a TH |
196 | u16 idx, unsigned int *pkts_compl, |
197 | unsigned int *bytes_compl) | |
9f6c9258 | 198 | { |
6383c0b3 | 199 | struct sw_tx_bd *tx_buf = &txdata->tx_buf_ring[idx]; |
9f6c9258 DK |
200 | struct eth_tx_start_bd *tx_start_bd; |
201 | struct eth_tx_bd *tx_data_bd; | |
202 | struct sk_buff *skb = tx_buf->skb; | |
203 | u16 bd_idx = TX_BD(tx_buf->first_bd), new_cons; | |
204 | int nbd; | |
95e92fd4 | 205 | u16 split_bd_len = 0; |
9f6c9258 DK |
206 | |
207 | /* prefetch skb end pointer to speedup dev_kfree_skb() */ | |
208 | prefetch(&skb->end); | |
209 | ||
51c1a580 | 210 | DP(NETIF_MSG_TX_DONE, "fp[%d]: pkt_idx %d buff @(%p)->skb %p\n", |
6383c0b3 | 211 | txdata->txq_index, idx, tx_buf, skb); |
9f6c9258 | 212 | |
6383c0b3 | 213 | tx_start_bd = &txdata->tx_desc_ring[bd_idx].start_bd; |
9f6c9258 DK |
214 | |
215 | nbd = le16_to_cpu(tx_start_bd->nbd) - 1; | |
216 | #ifdef BNX2X_STOP_ON_ERROR | |
217 | if ((nbd - 1) > (MAX_SKB_FRAGS + 2)) { | |
218 | BNX2X_ERR("BAD nbd!\n"); | |
219 | bnx2x_panic(); | |
220 | } | |
221 | #endif | |
222 | new_cons = nbd + tx_buf->first_bd; | |
223 | ||
224 | /* Get the next bd */ | |
225 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); | |
226 | ||
227 | /* Skip a parse bd... */ | |
228 | --nbd; | |
229 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); | |
230 | ||
fe26566d DK |
231 | if (tx_buf->flags & BNX2X_HAS_SECOND_PBD) { |
232 | /* Skip second parse bd... */ | |
233 | --nbd; | |
234 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); | |
235 | } | |
236 | ||
95e92fd4 | 237 | /* TSO headers+data bds share a common mapping. See bnx2x_tx_split() */ |
9f6c9258 | 238 | if (tx_buf->flags & BNX2X_TSO_SPLIT_BD) { |
95e92fd4 MS |
239 | tx_data_bd = &txdata->tx_desc_ring[bd_idx].reg_bd; |
240 | split_bd_len = BD_UNMAP_LEN(tx_data_bd); | |
9f6c9258 DK |
241 | --nbd; |
242 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); | |
243 | } | |
244 | ||
95e92fd4 MS |
245 | /* unmap first bd */ |
246 | dma_unmap_single(&bp->pdev->dev, BD_UNMAP_ADDR(tx_start_bd), | |
247 | BD_UNMAP_LEN(tx_start_bd) + split_bd_len, | |
248 | DMA_TO_DEVICE); | |
249 | ||
9f6c9258 DK |
250 | /* now free frags */ |
251 | while (nbd > 0) { | |
252 | ||
6383c0b3 | 253 | tx_data_bd = &txdata->tx_desc_ring[bd_idx].reg_bd; |
9f6c9258 DK |
254 | dma_unmap_page(&bp->pdev->dev, BD_UNMAP_ADDR(tx_data_bd), |
255 | BD_UNMAP_LEN(tx_data_bd), DMA_TO_DEVICE); | |
256 | if (--nbd) | |
257 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); | |
258 | } | |
259 | ||
260 | /* release skb */ | |
261 | WARN_ON(!skb); | |
d8290ae5 | 262 | if (likely(skb)) { |
2df1a70a TH |
263 | (*pkts_compl)++; |
264 | (*bytes_compl) += skb->len; | |
e1615903 | 265 | dev_kfree_skb_any(skb); |
2df1a70a | 266 | } |
d8290ae5 | 267 | |
9f6c9258 DK |
268 | tx_buf->first_bd = 0; |
269 | tx_buf->skb = NULL; | |
270 | ||
271 | return new_cons; | |
272 | } | |
273 | ||
6383c0b3 | 274 | int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata) |
9f6c9258 | 275 | { |
9f6c9258 | 276 | struct netdev_queue *txq; |
6383c0b3 | 277 | u16 hw_cons, sw_cons, bd_cons = txdata->tx_bd_cons; |
2df1a70a | 278 | unsigned int pkts_compl = 0, bytes_compl = 0; |
9f6c9258 DK |
279 | |
280 | #ifdef BNX2X_STOP_ON_ERROR | |
281 | if (unlikely(bp->panic)) | |
282 | return -1; | |
283 | #endif | |
284 | ||
6383c0b3 AE |
285 | txq = netdev_get_tx_queue(bp->dev, txdata->txq_index); |
286 | hw_cons = le16_to_cpu(*txdata->tx_cons_sb); | |
287 | sw_cons = txdata->tx_pkt_cons; | |
9f6c9258 DK |
288 | |
289 | while (sw_cons != hw_cons) { | |
290 | u16 pkt_cons; | |
291 | ||
292 | pkt_cons = TX_BD(sw_cons); | |
293 | ||
51c1a580 MS |
294 | DP(NETIF_MSG_TX_DONE, |
295 | "queue[%d]: hw_cons %u sw_cons %u pkt_cons %u\n", | |
6383c0b3 | 296 | txdata->txq_index, hw_cons, sw_cons, pkt_cons); |
9f6c9258 | 297 | |
2df1a70a | 298 | bd_cons = bnx2x_free_tx_pkt(bp, txdata, pkt_cons, |
2de67439 | 299 | &pkts_compl, &bytes_compl); |
2df1a70a | 300 | |
9f6c9258 DK |
301 | sw_cons++; |
302 | } | |
303 | ||
2df1a70a TH |
304 | netdev_tx_completed_queue(txq, pkts_compl, bytes_compl); |
305 | ||
6383c0b3 AE |
306 | txdata->tx_pkt_cons = sw_cons; |
307 | txdata->tx_bd_cons = bd_cons; | |
9f6c9258 DK |
308 | |
309 | /* Need to make the tx_bd_cons update visible to start_xmit() | |
310 | * before checking for netif_tx_queue_stopped(). Without the | |
311 | * memory barrier, there is a small possibility that | |
312 | * start_xmit() will miss it and cause the queue to be stopped | |
313 | * forever. | |
619c5cb6 VZ |
314 | * On the other hand we need an rmb() here to ensure the proper |
315 | * ordering of bit testing in the following | |
316 | * netif_tx_queue_stopped(txq) call. | |
9f6c9258 DK |
317 | */ |
318 | smp_mb(); | |
319 | ||
9f6c9258 | 320 | if (unlikely(netif_tx_queue_stopped(txq))) { |
16a5fd92 | 321 | /* Taking tx_lock() is needed to prevent re-enabling the queue |
9f6c9258 DK |
322 | * while it's empty. This could have happen if rx_action() gets |
323 | * suspended in bnx2x_tx_int() after the condition before | |
324 | * netif_tx_wake_queue(), while tx_action (bnx2x_start_xmit()): | |
325 | * | |
326 | * stops the queue->sees fresh tx_bd_cons->releases the queue-> | |
327 | * sends some packets consuming the whole queue again-> | |
328 | * stops the queue | |
329 | */ | |
330 | ||
331 | __netif_tx_lock(txq, smp_processor_id()); | |
332 | ||
333 | if ((netif_tx_queue_stopped(txq)) && | |
334 | (bp->state == BNX2X_STATE_OPEN) && | |
7df2dc6b | 335 | (bnx2x_tx_avail(bp, txdata) >= MAX_DESC_PER_TX_PKT)) |
9f6c9258 DK |
336 | netif_tx_wake_queue(txq); |
337 | ||
338 | __netif_tx_unlock(txq); | |
339 | } | |
340 | return 0; | |
341 | } | |
342 | ||
343 | static inline void bnx2x_update_last_max_sge(struct bnx2x_fastpath *fp, | |
344 | u16 idx) | |
345 | { | |
346 | u16 last_max = fp->last_max_sge; | |
347 | ||
348 | if (SUB_S16(idx, last_max) > 0) | |
349 | fp->last_max_sge = idx; | |
350 | } | |
351 | ||
621b4d66 DK |
352 | static inline void bnx2x_update_sge_prod(struct bnx2x_fastpath *fp, |
353 | u16 sge_len, | |
354 | struct eth_end_agg_rx_cqe *cqe) | |
9f6c9258 DK |
355 | { |
356 | struct bnx2x *bp = fp->bp; | |
9f6c9258 DK |
357 | u16 last_max, last_elem, first_elem; |
358 | u16 delta = 0; | |
359 | u16 i; | |
360 | ||
361 | if (!sge_len) | |
362 | return; | |
363 | ||
364 | /* First mark all used pages */ | |
365 | for (i = 0; i < sge_len; i++) | |
619c5cb6 | 366 | BIT_VEC64_CLEAR_BIT(fp->sge_mask, |
621b4d66 | 367 | RX_SGE(le16_to_cpu(cqe->sgl_or_raw_data.sgl[i]))); |
9f6c9258 DK |
368 | |
369 | DP(NETIF_MSG_RX_STATUS, "fp_cqe->sgl[%d] = %d\n", | |
621b4d66 | 370 | sge_len - 1, le16_to_cpu(cqe->sgl_or_raw_data.sgl[sge_len - 1])); |
9f6c9258 DK |
371 | |
372 | /* Here we assume that the last SGE index is the biggest */ | |
373 | prefetch((void *)(fp->sge_mask)); | |
523224a3 | 374 | bnx2x_update_last_max_sge(fp, |
621b4d66 | 375 | le16_to_cpu(cqe->sgl_or_raw_data.sgl[sge_len - 1])); |
9f6c9258 DK |
376 | |
377 | last_max = RX_SGE(fp->last_max_sge); | |
619c5cb6 VZ |
378 | last_elem = last_max >> BIT_VEC64_ELEM_SHIFT; |
379 | first_elem = RX_SGE(fp->rx_sge_prod) >> BIT_VEC64_ELEM_SHIFT; | |
9f6c9258 DK |
380 | |
381 | /* If ring is not full */ | |
382 | if (last_elem + 1 != first_elem) | |
383 | last_elem++; | |
384 | ||
385 | /* Now update the prod */ | |
386 | for (i = first_elem; i != last_elem; i = NEXT_SGE_MASK_ELEM(i)) { | |
387 | if (likely(fp->sge_mask[i])) | |
388 | break; | |
389 | ||
619c5cb6 VZ |
390 | fp->sge_mask[i] = BIT_VEC64_ELEM_ONE_MASK; |
391 | delta += BIT_VEC64_ELEM_SZ; | |
9f6c9258 DK |
392 | } |
393 | ||
394 | if (delta > 0) { | |
395 | fp->rx_sge_prod += delta; | |
396 | /* clear page-end entries */ | |
397 | bnx2x_clear_sge_mask_next_elems(fp); | |
398 | } | |
399 | ||
400 | DP(NETIF_MSG_RX_STATUS, | |
401 | "fp->last_max_sge = %d fp->rx_sge_prod = %d\n", | |
402 | fp->last_max_sge, fp->rx_sge_prod); | |
403 | } | |
404 | ||
2de67439 | 405 | /* Get Toeplitz hash value in the skb using the value from the |
e52fcb24 ED |
406 | * CQE (calculated by HW). |
407 | */ | |
408 | static u32 bnx2x_get_rxhash(const struct bnx2x *bp, | |
a334b5fb | 409 | const struct eth_fast_path_rx_cqe *cqe, |
5495ab75 | 410 | enum pkt_hash_types *rxhash_type) |
e52fcb24 | 411 | { |
2de67439 | 412 | /* Get Toeplitz hash from CQE */ |
e52fcb24 | 413 | if ((bp->dev->features & NETIF_F_RXHASH) && |
a334b5fb ED |
414 | (cqe->status_flags & ETH_FAST_PATH_RX_CQE_RSS_HASH_FLG)) { |
415 | enum eth_rss_hash_type htype; | |
416 | ||
417 | htype = cqe->status_flags & ETH_FAST_PATH_RX_CQE_RSS_HASH_TYPE; | |
5495ab75 TH |
418 | *rxhash_type = ((htype == TCP_IPV4_HASH_TYPE) || |
419 | (htype == TCP_IPV6_HASH_TYPE)) ? | |
420 | PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3; | |
421 | ||
e52fcb24 | 422 | return le32_to_cpu(cqe->rss_hash_result); |
a334b5fb | 423 | } |
5495ab75 | 424 | *rxhash_type = PKT_HASH_TYPE_NONE; |
e52fcb24 ED |
425 | return 0; |
426 | } | |
427 | ||
9f6c9258 | 428 | static void bnx2x_tpa_start(struct bnx2x_fastpath *fp, u16 queue, |
e52fcb24 | 429 | u16 cons, u16 prod, |
619c5cb6 | 430 | struct eth_fast_path_rx_cqe *cqe) |
9f6c9258 DK |
431 | { |
432 | struct bnx2x *bp = fp->bp; | |
433 | struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons]; | |
434 | struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod]; | |
435 | struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod]; | |
436 | dma_addr_t mapping; | |
619c5cb6 VZ |
437 | struct bnx2x_agg_info *tpa_info = &fp->tpa_info[queue]; |
438 | struct sw_rx_bd *first_buf = &tpa_info->first_buf; | |
9f6c9258 | 439 | |
619c5cb6 VZ |
440 | /* print error if current state != stop */ |
441 | if (tpa_info->tpa_state != BNX2X_TPA_STOP) | |
9f6c9258 DK |
442 | BNX2X_ERR("start of bin not in stop [%d]\n", queue); |
443 | ||
e52fcb24 | 444 | /* Try to map an empty data buffer from the aggregation info */ |
619c5cb6 | 445 | mapping = dma_map_single(&bp->pdev->dev, |
e52fcb24 | 446 | first_buf->data + NET_SKB_PAD, |
619c5cb6 VZ |
447 | fp->rx_buf_size, DMA_FROM_DEVICE); |
448 | /* | |
449 | * ...if it fails - move the skb from the consumer to the producer | |
450 | * and set the current aggregation state as ERROR to drop it | |
451 | * when TPA_STOP arrives. | |
452 | */ | |
453 | ||
454 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { | |
455 | /* Move the BD from the consumer to the producer */ | |
e52fcb24 | 456 | bnx2x_reuse_rx_data(fp, cons, prod); |
619c5cb6 VZ |
457 | tpa_info->tpa_state = BNX2X_TPA_ERROR; |
458 | return; | |
459 | } | |
9f6c9258 | 460 | |
e52fcb24 ED |
461 | /* move empty data from pool to prod */ |
462 | prod_rx_buf->data = first_buf->data; | |
619c5cb6 | 463 | dma_unmap_addr_set(prod_rx_buf, mapping, mapping); |
e52fcb24 | 464 | /* point prod_bd to new data */ |
9f6c9258 DK |
465 | prod_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
466 | prod_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); | |
467 | ||
619c5cb6 VZ |
468 | /* move partial skb from cons to pool (don't unmap yet) */ |
469 | *first_buf = *cons_rx_buf; | |
470 | ||
471 | /* mark bin state as START */ | |
472 | tpa_info->parsing_flags = | |
473 | le16_to_cpu(cqe->pars_flags.flags); | |
474 | tpa_info->vlan_tag = le16_to_cpu(cqe->vlan_tag); | |
475 | tpa_info->tpa_state = BNX2X_TPA_START; | |
476 | tpa_info->len_on_bd = le16_to_cpu(cqe->len_on_bd); | |
477 | tpa_info->placement_offset = cqe->placement_offset; | |
5495ab75 | 478 | tpa_info->rxhash = bnx2x_get_rxhash(bp, cqe, &tpa_info->rxhash_type); |
621b4d66 DK |
479 | if (fp->mode == TPA_MODE_GRO) { |
480 | u16 gro_size = le16_to_cpu(cqe->pkt_len_or_gro_seg_len); | |
924d75ab | 481 | tpa_info->full_page = SGE_PAGES / gro_size * gro_size; |
621b4d66 DK |
482 | tpa_info->gro_size = gro_size; |
483 | } | |
619c5cb6 | 484 | |
9f6c9258 DK |
485 | #ifdef BNX2X_STOP_ON_ERROR |
486 | fp->tpa_queue_used |= (1 << queue); | |
9f6c9258 | 487 | DP(NETIF_MSG_RX_STATUS, "fp->tpa_queue_used = 0x%llx\n", |
9f6c9258 DK |
488 | fp->tpa_queue_used); |
489 | #endif | |
490 | } | |
491 | ||
e4e3c02a VZ |
492 | /* Timestamp option length allowed for TPA aggregation: |
493 | * | |
494 | * nop nop kind length echo val | |
495 | */ | |
496 | #define TPA_TSTAMP_OPT_LEN 12 | |
497 | /** | |
cbf1de72 | 498 | * bnx2x_set_gro_params - compute GRO values |
e4e3c02a | 499 | * |
cbf1de72 | 500 | * @skb: packet skb |
e8920674 DK |
501 | * @parsing_flags: parsing flags from the START CQE |
502 | * @len_on_bd: total length of the first packet for the | |
503 | * aggregation. | |
cbf1de72 | 504 | * @pkt_len: length of all segments |
e8920674 DK |
505 | * |
506 | * Approximate value of the MSS for this aggregation calculated using | |
507 | * the first packet of it. | |
2de67439 | 508 | * Compute number of aggregated segments, and gso_type. |
e4e3c02a | 509 | */ |
cbf1de72 | 510 | static void bnx2x_set_gro_params(struct sk_buff *skb, u16 parsing_flags, |
ab5777d7 YM |
511 | u16 len_on_bd, unsigned int pkt_len, |
512 | u16 num_of_coalesced_segs) | |
e4e3c02a | 513 | { |
cbf1de72 | 514 | /* TPA aggregation won't have either IP options or TCP options |
619c5cb6 | 515 | * other than timestamp or IPv6 extension headers. |
e4e3c02a | 516 | */ |
619c5cb6 VZ |
517 | u16 hdrs_len = ETH_HLEN + sizeof(struct tcphdr); |
518 | ||
519 | if (GET_FLAG(parsing_flags, PARSING_FLAGS_OVER_ETHERNET_PROTOCOL) == | |
cbf1de72 | 520 | PRS_FLAG_OVERETH_IPV6) { |
619c5cb6 | 521 | hdrs_len += sizeof(struct ipv6hdr); |
cbf1de72 YM |
522 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; |
523 | } else { | |
619c5cb6 | 524 | hdrs_len += sizeof(struct iphdr); |
cbf1de72 YM |
525 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; |
526 | } | |
e4e3c02a VZ |
527 | |
528 | /* Check if there was a TCP timestamp, if there is it's will | |
529 | * always be 12 bytes length: nop nop kind length echo val. | |
530 | * | |
531 | * Otherwise FW would close the aggregation. | |
532 | */ | |
533 | if (parsing_flags & PARSING_FLAGS_TIME_STAMP_EXIST_FLAG) | |
534 | hdrs_len += TPA_TSTAMP_OPT_LEN; | |
535 | ||
cbf1de72 YM |
536 | skb_shinfo(skb)->gso_size = len_on_bd - hdrs_len; |
537 | ||
538 | /* tcp_gro_complete() will copy NAPI_GRO_CB(skb)->count | |
539 | * to skb_shinfo(skb)->gso_segs | |
540 | */ | |
ab5777d7 | 541 | NAPI_GRO_CB(skb)->count = num_of_coalesced_segs; |
e4e3c02a VZ |
542 | } |
543 | ||
996dedba MS |
544 | static int bnx2x_alloc_rx_sge(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
545 | u16 index, gfp_t gfp_mask) | |
1191cb83 | 546 | { |
1191cb83 ED |
547 | struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; |
548 | struct eth_rx_sge *sge = &fp->rx_sge_ring[index]; | |
4cace675 | 549 | struct bnx2x_alloc_pool *pool = &fp->page_pool; |
1191cb83 ED |
550 | dma_addr_t mapping; |
551 | ||
4cace675 | 552 | if (!pool->page || (PAGE_SIZE - pool->offset) < SGE_PAGE_SIZE) { |
1191cb83 | 553 | |
4cace675 GKB |
554 | /* put page reference used by the memory pool, since we |
555 | * won't be using this page as the mempool anymore. | |
556 | */ | |
557 | if (pool->page) | |
558 | put_page(pool->page); | |
559 | ||
560 | pool->page = alloc_pages(gfp_mask, PAGES_PER_SGE_SHIFT); | |
561 | if (unlikely(!pool->page)) { | |
562 | BNX2X_ERR("Can't alloc sge\n"); | |
563 | return -ENOMEM; | |
564 | } | |
565 | ||
4cace675 | 566 | pool->offset = 0; |
1191cb83 ED |
567 | } |
568 | ||
8031612d MS |
569 | mapping = dma_map_page(&bp->pdev->dev, pool->page, |
570 | pool->offset, SGE_PAGE_SIZE, DMA_FROM_DEVICE); | |
571 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { | |
572 | BNX2X_ERR("Can't map sge\n"); | |
573 | return -ENOMEM; | |
574 | } | |
575 | ||
4cace675 GKB |
576 | get_page(pool->page); |
577 | sw_buf->page = pool->page; | |
578 | sw_buf->offset = pool->offset; | |
579 | ||
1191cb83 ED |
580 | dma_unmap_addr_set(sw_buf, mapping, mapping); |
581 | ||
582 | sge->addr_hi = cpu_to_le32(U64_HI(mapping)); | |
583 | sge->addr_lo = cpu_to_le32(U64_LO(mapping)); | |
584 | ||
4cace675 GKB |
585 | pool->offset += SGE_PAGE_SIZE; |
586 | ||
1191cb83 ED |
587 | return 0; |
588 | } | |
589 | ||
9f6c9258 | 590 | static int bnx2x_fill_frag_skb(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
621b4d66 DK |
591 | struct bnx2x_agg_info *tpa_info, |
592 | u16 pages, | |
593 | struct sk_buff *skb, | |
619c5cb6 VZ |
594 | struct eth_end_agg_rx_cqe *cqe, |
595 | u16 cqe_idx) | |
9f6c9258 DK |
596 | { |
597 | struct sw_rx_page *rx_pg, old_rx_pg; | |
621b4d66 DK |
598 | u32 i, frag_len, frag_size; |
599 | int err, j, frag_id = 0; | |
619c5cb6 | 600 | u16 len_on_bd = tpa_info->len_on_bd; |
621b4d66 | 601 | u16 full_page = 0, gro_size = 0; |
9f6c9258 | 602 | |
619c5cb6 | 603 | frag_size = le16_to_cpu(cqe->pkt_len) - len_on_bd; |
621b4d66 DK |
604 | |
605 | if (fp->mode == TPA_MODE_GRO) { | |
606 | gro_size = tpa_info->gro_size; | |
607 | full_page = tpa_info->full_page; | |
608 | } | |
9f6c9258 DK |
609 | |
610 | /* This is needed in order to enable forwarding support */ | |
cbf1de72 YM |
611 | if (frag_size) |
612 | bnx2x_set_gro_params(skb, tpa_info->parsing_flags, len_on_bd, | |
ab5777d7 YM |
613 | le16_to_cpu(cqe->pkt_len), |
614 | le16_to_cpu(cqe->num_of_coalesced_segs)); | |
621b4d66 | 615 | |
9f6c9258 | 616 | #ifdef BNX2X_STOP_ON_ERROR |
924d75ab | 617 | if (pages > min_t(u32, 8, MAX_SKB_FRAGS) * SGE_PAGES) { |
9f6c9258 DK |
618 | BNX2X_ERR("SGL length is too long: %d. CQE index is %d\n", |
619 | pages, cqe_idx); | |
619c5cb6 | 620 | BNX2X_ERR("cqe->pkt_len = %d\n", cqe->pkt_len); |
9f6c9258 DK |
621 | bnx2x_panic(); |
622 | return -EINVAL; | |
623 | } | |
624 | #endif | |
625 | ||
626 | /* Run through the SGL and compose the fragmented skb */ | |
627 | for (i = 0, j = 0; i < pages; i += PAGES_PER_SGE, j++) { | |
619c5cb6 | 628 | u16 sge_idx = RX_SGE(le16_to_cpu(cqe->sgl_or_raw_data.sgl[j])); |
9f6c9258 DK |
629 | |
630 | /* FW gives the indices of the SGE as if the ring is an array | |
631 | (meaning that "next" element will consume 2 indices) */ | |
621b4d66 DK |
632 | if (fp->mode == TPA_MODE_GRO) |
633 | frag_len = min_t(u32, frag_size, (u32)full_page); | |
634 | else /* LRO */ | |
924d75ab | 635 | frag_len = min_t(u32, frag_size, (u32)SGE_PAGES); |
621b4d66 | 636 | |
9f6c9258 DK |
637 | rx_pg = &fp->rx_page_ring[sge_idx]; |
638 | old_rx_pg = *rx_pg; | |
639 | ||
640 | /* If we fail to allocate a substitute page, we simply stop | |
641 | where we are and drop the whole packet */ | |
996dedba | 642 | err = bnx2x_alloc_rx_sge(bp, fp, sge_idx, GFP_ATOMIC); |
9f6c9258 | 643 | if (unlikely(err)) { |
15192a8c | 644 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
9f6c9258 DK |
645 | return err; |
646 | } | |
647 | ||
8031612d MS |
648 | dma_unmap_page(&bp->pdev->dev, |
649 | dma_unmap_addr(&old_rx_pg, mapping), | |
650 | SGE_PAGE_SIZE, DMA_FROM_DEVICE); | |
9f6c9258 | 651 | /* Add one frag and update the appropriate fields in the skb */ |
621b4d66 | 652 | if (fp->mode == TPA_MODE_LRO) |
4cace675 GKB |
653 | skb_fill_page_desc(skb, j, old_rx_pg.page, |
654 | old_rx_pg.offset, frag_len); | |
621b4d66 DK |
655 | else { /* GRO */ |
656 | int rem; | |
657 | int offset = 0; | |
658 | for (rem = frag_len; rem > 0; rem -= gro_size) { | |
659 | int len = rem > gro_size ? gro_size : rem; | |
660 | skb_fill_page_desc(skb, frag_id++, | |
4cace675 GKB |
661 | old_rx_pg.page, |
662 | old_rx_pg.offset + offset, | |
663 | len); | |
621b4d66 DK |
664 | if (offset) |
665 | get_page(old_rx_pg.page); | |
666 | offset += len; | |
667 | } | |
668 | } | |
9f6c9258 DK |
669 | |
670 | skb->data_len += frag_len; | |
924d75ab | 671 | skb->truesize += SGE_PAGES; |
9f6c9258 DK |
672 | skb->len += frag_len; |
673 | ||
674 | frag_size -= frag_len; | |
675 | } | |
676 | ||
677 | return 0; | |
678 | } | |
679 | ||
d46d132c ED |
680 | static void bnx2x_frag_free(const struct bnx2x_fastpath *fp, void *data) |
681 | { | |
682 | if (fp->rx_frag_size) | |
e51423d9 | 683 | skb_free_frag(data); |
d46d132c ED |
684 | else |
685 | kfree(data); | |
686 | } | |
687 | ||
996dedba | 688 | static void *bnx2x_frag_alloc(const struct bnx2x_fastpath *fp, gfp_t gfp_mask) |
d46d132c | 689 | { |
996dedba MS |
690 | if (fp->rx_frag_size) { |
691 | /* GFP_KERNEL allocations are used only during initialization */ | |
692 | if (unlikely(gfp_mask & __GFP_WAIT)) | |
693 | return (void *)__get_free_page(gfp_mask); | |
694 | ||
d46d132c | 695 | return netdev_alloc_frag(fp->rx_frag_size); |
996dedba | 696 | } |
d46d132c | 697 | |
996dedba | 698 | return kmalloc(fp->rx_buf_size + NET_SKB_PAD, gfp_mask); |
d46d132c ED |
699 | } |
700 | ||
9969085e YM |
701 | #ifdef CONFIG_INET |
702 | static void bnx2x_gro_ip_csum(struct bnx2x *bp, struct sk_buff *skb) | |
703 | { | |
704 | const struct iphdr *iph = ip_hdr(skb); | |
705 | struct tcphdr *th; | |
706 | ||
707 | skb_set_transport_header(skb, sizeof(struct iphdr)); | |
708 | th = tcp_hdr(skb); | |
709 | ||
710 | th->check = ~tcp_v4_check(skb->len - skb_transport_offset(skb), | |
711 | iph->saddr, iph->daddr, 0); | |
712 | } | |
713 | ||
714 | static void bnx2x_gro_ipv6_csum(struct bnx2x *bp, struct sk_buff *skb) | |
715 | { | |
716 | struct ipv6hdr *iph = ipv6_hdr(skb); | |
717 | struct tcphdr *th; | |
718 | ||
719 | skb_set_transport_header(skb, sizeof(struct ipv6hdr)); | |
720 | th = tcp_hdr(skb); | |
721 | ||
722 | th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb), | |
723 | &iph->saddr, &iph->daddr, 0); | |
724 | } | |
2c2d06d5 YM |
725 | |
726 | static void bnx2x_gro_csum(struct bnx2x *bp, struct sk_buff *skb, | |
727 | void (*gro_func)(struct bnx2x*, struct sk_buff*)) | |
728 | { | |
729 | skb_set_network_header(skb, 0); | |
730 | gro_func(bp, skb); | |
731 | tcp_gro_complete(skb); | |
732 | } | |
9969085e YM |
733 | #endif |
734 | ||
735 | static void bnx2x_gro_receive(struct bnx2x *bp, struct bnx2x_fastpath *fp, | |
736 | struct sk_buff *skb) | |
737 | { | |
738 | #ifdef CONFIG_INET | |
cbf1de72 | 739 | if (skb_shinfo(skb)->gso_size) { |
9969085e YM |
740 | switch (be16_to_cpu(skb->protocol)) { |
741 | case ETH_P_IP: | |
2c2d06d5 | 742 | bnx2x_gro_csum(bp, skb, bnx2x_gro_ip_csum); |
9969085e YM |
743 | break; |
744 | case ETH_P_IPV6: | |
2c2d06d5 | 745 | bnx2x_gro_csum(bp, skb, bnx2x_gro_ipv6_csum); |
9969085e YM |
746 | break; |
747 | default: | |
2c2d06d5 | 748 | BNX2X_ERR("Error: FW GRO supports only IPv4/IPv6, not 0x%04x\n", |
9969085e YM |
749 | be16_to_cpu(skb->protocol)); |
750 | } | |
9969085e YM |
751 | } |
752 | #endif | |
60e66fee | 753 | skb_record_rx_queue(skb, fp->rx_queue); |
9969085e YM |
754 | napi_gro_receive(&fp->napi, skb); |
755 | } | |
756 | ||
1191cb83 ED |
757 | static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
758 | struct bnx2x_agg_info *tpa_info, | |
759 | u16 pages, | |
760 | struct eth_end_agg_rx_cqe *cqe, | |
761 | u16 cqe_idx) | |
9f6c9258 | 762 | { |
619c5cb6 | 763 | struct sw_rx_bd *rx_buf = &tpa_info->first_buf; |
621b4d66 | 764 | u8 pad = tpa_info->placement_offset; |
619c5cb6 | 765 | u16 len = tpa_info->len_on_bd; |
e52fcb24 | 766 | struct sk_buff *skb = NULL; |
621b4d66 | 767 | u8 *new_data, *data = rx_buf->data; |
619c5cb6 VZ |
768 | u8 old_tpa_state = tpa_info->tpa_state; |
769 | ||
770 | tpa_info->tpa_state = BNX2X_TPA_STOP; | |
771 | ||
772 | /* If we there was an error during the handling of the TPA_START - | |
773 | * drop this aggregation. | |
774 | */ | |
775 | if (old_tpa_state == BNX2X_TPA_ERROR) | |
776 | goto drop; | |
777 | ||
e52fcb24 | 778 | /* Try to allocate the new data */ |
996dedba | 779 | new_data = bnx2x_frag_alloc(fp, GFP_ATOMIC); |
9f6c9258 DK |
780 | /* Unmap skb in the pool anyway, as we are going to change |
781 | pool entry status to BNX2X_TPA_STOP even if new skb allocation | |
782 | fails. */ | |
783 | dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(rx_buf, mapping), | |
a8c94b91 | 784 | fp->rx_buf_size, DMA_FROM_DEVICE); |
e52fcb24 | 785 | if (likely(new_data)) |
d46d132c | 786 | skb = build_skb(data, fp->rx_frag_size); |
9f6c9258 | 787 | |
e52fcb24 | 788 | if (likely(skb)) { |
9f6c9258 | 789 | #ifdef BNX2X_STOP_ON_ERROR |
a8c94b91 | 790 | if (pad + len > fp->rx_buf_size) { |
51c1a580 | 791 | BNX2X_ERR("skb_put is about to fail... pad %d len %d rx_buf_size %d\n", |
a8c94b91 | 792 | pad, len, fp->rx_buf_size); |
9f6c9258 DK |
793 | bnx2x_panic(); |
794 | return; | |
795 | } | |
796 | #endif | |
797 | ||
e52fcb24 | 798 | skb_reserve(skb, pad + NET_SKB_PAD); |
9f6c9258 | 799 | skb_put(skb, len); |
5495ab75 | 800 | skb_set_hash(skb, tpa_info->rxhash, tpa_info->rxhash_type); |
9f6c9258 DK |
801 | |
802 | skb->protocol = eth_type_trans(skb, bp->dev); | |
803 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
804 | ||
621b4d66 DK |
805 | if (!bnx2x_fill_frag_skb(bp, fp, tpa_info, pages, |
806 | skb, cqe, cqe_idx)) { | |
619c5cb6 | 807 | if (tpa_info->parsing_flags & PARSING_FLAGS_VLAN) |
86a9bad3 | 808 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tpa_info->vlan_tag); |
9969085e | 809 | bnx2x_gro_receive(bp, fp, skb); |
9f6c9258 | 810 | } else { |
51c1a580 MS |
811 | DP(NETIF_MSG_RX_STATUS, |
812 | "Failed to allocate new pages - dropping packet!\n"); | |
40955532 | 813 | dev_kfree_skb_any(skb); |
9f6c9258 DK |
814 | } |
815 | ||
e52fcb24 ED |
816 | /* put new data in bin */ |
817 | rx_buf->data = new_data; | |
9f6c9258 | 818 | |
619c5cb6 | 819 | return; |
9f6c9258 | 820 | } |
07b0f009 ED |
821 | if (new_data) |
822 | bnx2x_frag_free(fp, new_data); | |
619c5cb6 VZ |
823 | drop: |
824 | /* drop the packet and keep the buffer in the bin */ | |
825 | DP(NETIF_MSG_RX_STATUS, | |
826 | "Failed to allocate or map a new skb - dropping packet!\n"); | |
15192a8c | 827 | bnx2x_fp_stats(bp, fp)->eth_q_stats.rx_skb_alloc_failed++; |
9f6c9258 DK |
828 | } |
829 | ||
996dedba MS |
830 | static int bnx2x_alloc_rx_data(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
831 | u16 index, gfp_t gfp_mask) | |
1191cb83 ED |
832 | { |
833 | u8 *data; | |
834 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[index]; | |
835 | struct eth_rx_bd *rx_bd = &fp->rx_desc_ring[index]; | |
836 | dma_addr_t mapping; | |
837 | ||
996dedba | 838 | data = bnx2x_frag_alloc(fp, gfp_mask); |
1191cb83 ED |
839 | if (unlikely(data == NULL)) |
840 | return -ENOMEM; | |
841 | ||
842 | mapping = dma_map_single(&bp->pdev->dev, data + NET_SKB_PAD, | |
843 | fp->rx_buf_size, | |
844 | DMA_FROM_DEVICE); | |
845 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { | |
d46d132c | 846 | bnx2x_frag_free(fp, data); |
1191cb83 ED |
847 | BNX2X_ERR("Can't map rx data\n"); |
848 | return -ENOMEM; | |
849 | } | |
850 | ||
851 | rx_buf->data = data; | |
852 | dma_unmap_addr_set(rx_buf, mapping, mapping); | |
853 | ||
854 | rx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); | |
855 | rx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); | |
856 | ||
857 | return 0; | |
858 | } | |
859 | ||
15192a8c BW |
860 | static |
861 | void bnx2x_csum_validate(struct sk_buff *skb, union eth_rx_cqe *cqe, | |
862 | struct bnx2x_fastpath *fp, | |
863 | struct bnx2x_eth_q_stats *qstats) | |
d6cb3e41 | 864 | { |
e488921f MS |
865 | /* Do nothing if no L4 csum validation was done. |
866 | * We do not check whether IP csum was validated. For IPv4 we assume | |
867 | * that if the card got as far as validating the L4 csum, it also | |
868 | * validated the IP csum. IPv6 has no IP csum. | |
869 | */ | |
d6cb3e41 | 870 | if (cqe->fast_path_cqe.status_flags & |
e488921f | 871 | ETH_FAST_PATH_RX_CQE_L4_XSUM_NO_VALIDATION_FLG) |
d6cb3e41 ED |
872 | return; |
873 | ||
e488921f | 874 | /* If L4 validation was done, check if an error was found. */ |
d6cb3e41 ED |
875 | |
876 | if (cqe->fast_path_cqe.type_error_flags & | |
877 | (ETH_FAST_PATH_RX_CQE_IP_BAD_XSUM_FLG | | |
878 | ETH_FAST_PATH_RX_CQE_L4_BAD_XSUM_FLG)) | |
15192a8c | 879 | qstats->hw_csum_err++; |
d6cb3e41 ED |
880 | else |
881 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
882 | } | |
9f6c9258 | 883 | |
a8f47eb7 | 884 | static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) |
9f6c9258 DK |
885 | { |
886 | struct bnx2x *bp = fp->bp; | |
887 | u16 bd_cons, bd_prod, bd_prod_fw, comp_ring_cons; | |
75b29459 | 888 | u16 sw_comp_cons, sw_comp_prod; |
9f6c9258 | 889 | int rx_pkt = 0; |
75b29459 DK |
890 | union eth_rx_cqe *cqe; |
891 | struct eth_fast_path_rx_cqe *cqe_fp; | |
9f6c9258 DK |
892 | |
893 | #ifdef BNX2X_STOP_ON_ERROR | |
894 | if (unlikely(bp->panic)) | |
895 | return 0; | |
896 | #endif | |
b3529744 EB |
897 | if (budget <= 0) |
898 | return rx_pkt; | |
9f6c9258 | 899 | |
9f6c9258 DK |
900 | bd_cons = fp->rx_bd_cons; |
901 | bd_prod = fp->rx_bd_prod; | |
902 | bd_prod_fw = bd_prod; | |
903 | sw_comp_cons = fp->rx_comp_cons; | |
904 | sw_comp_prod = fp->rx_comp_prod; | |
905 | ||
75b29459 DK |
906 | comp_ring_cons = RCQ_BD(sw_comp_cons); |
907 | cqe = &fp->rx_comp_ring[comp_ring_cons]; | |
908 | cqe_fp = &cqe->fast_path_cqe; | |
9f6c9258 DK |
909 | |
910 | DP(NETIF_MSG_RX_STATUS, | |
75b29459 | 911 | "queue[%d]: sw_comp_cons %u\n", fp->index, sw_comp_cons); |
9f6c9258 | 912 | |
75b29459 | 913 | while (BNX2X_IS_CQE_COMPLETED(cqe_fp)) { |
9f6c9258 DK |
914 | struct sw_rx_bd *rx_buf = NULL; |
915 | struct sk_buff *skb; | |
9f6c9258 | 916 | u8 cqe_fp_flags; |
619c5cb6 | 917 | enum eth_rx_cqe_type cqe_fp_type; |
621b4d66 | 918 | u16 len, pad, queue; |
e52fcb24 | 919 | u8 *data; |
bd5cef03 | 920 | u32 rxhash; |
5495ab75 | 921 | enum pkt_hash_types rxhash_type; |
9f6c9258 | 922 | |
619c5cb6 VZ |
923 | #ifdef BNX2X_STOP_ON_ERROR |
924 | if (unlikely(bp->panic)) | |
925 | return 0; | |
926 | #endif | |
927 | ||
9f6c9258 DK |
928 | bd_prod = RX_BD(bd_prod); |
929 | bd_cons = RX_BD(bd_cons); | |
930 | ||
9aaae044 | 931 | /* A rmb() is required to ensure that the CQE is not read |
932 | * before it is written by the adapter DMA. PCI ordering | |
933 | * rules will make sure the other fields are written before | |
934 | * the marker at the end of struct eth_fast_path_rx_cqe | |
935 | * but without rmb() a weakly ordered processor can process | |
936 | * stale data. Without the barrier TPA state-machine might | |
937 | * enter inconsistent state and kernel stack might be | |
938 | * provided with incorrect packet description - these lead | |
939 | * to various kernel crashed. | |
940 | */ | |
941 | rmb(); | |
942 | ||
619c5cb6 VZ |
943 | cqe_fp_flags = cqe_fp->type_error_flags; |
944 | cqe_fp_type = cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE; | |
9f6c9258 | 945 | |
51c1a580 MS |
946 | DP(NETIF_MSG_RX_STATUS, |
947 | "CQE type %x err %x status %x queue %x vlan %x len %u\n", | |
948 | CQE_TYPE(cqe_fp_flags), | |
619c5cb6 VZ |
949 | cqe_fp_flags, cqe_fp->status_flags, |
950 | le32_to_cpu(cqe_fp->rss_hash_result), | |
621b4d66 DK |
951 | le16_to_cpu(cqe_fp->vlan_tag), |
952 | le16_to_cpu(cqe_fp->pkt_len_or_gro_seg_len)); | |
9f6c9258 DK |
953 | |
954 | /* is this a slowpath msg? */ | |
619c5cb6 | 955 | if (unlikely(CQE_TYPE_SLOW(cqe_fp_type))) { |
9f6c9258 DK |
956 | bnx2x_sp_event(fp, cqe); |
957 | goto next_cqe; | |
e52fcb24 | 958 | } |
621b4d66 | 959 | |
e52fcb24 ED |
960 | rx_buf = &fp->rx_buf_ring[bd_cons]; |
961 | data = rx_buf->data; | |
9f6c9258 | 962 | |
e52fcb24 | 963 | if (!CQE_TYPE_FAST(cqe_fp_type)) { |
621b4d66 DK |
964 | struct bnx2x_agg_info *tpa_info; |
965 | u16 frag_size, pages; | |
619c5cb6 | 966 | #ifdef BNX2X_STOP_ON_ERROR |
e52fcb24 | 967 | /* sanity check */ |
7e6b4d44 | 968 | if (fp->mode == TPA_MODE_DISABLED && |
e52fcb24 ED |
969 | (CQE_TYPE_START(cqe_fp_type) || |
970 | CQE_TYPE_STOP(cqe_fp_type))) | |
7e6b4d44 | 971 | BNX2X_ERR("START/STOP packet while TPA disabled, type %x\n", |
e52fcb24 | 972 | CQE_TYPE(cqe_fp_type)); |
619c5cb6 | 973 | #endif |
9f6c9258 | 974 | |
e52fcb24 ED |
975 | if (CQE_TYPE_START(cqe_fp_type)) { |
976 | u16 queue = cqe_fp->queue_index; | |
977 | DP(NETIF_MSG_RX_STATUS, | |
978 | "calling tpa_start on queue %d\n", | |
979 | queue); | |
9f6c9258 | 980 | |
e52fcb24 ED |
981 | bnx2x_tpa_start(fp, queue, |
982 | bd_cons, bd_prod, | |
983 | cqe_fp); | |
621b4d66 | 984 | |
e52fcb24 | 985 | goto next_rx; |
621b4d66 DK |
986 | } |
987 | queue = cqe->end_agg_cqe.queue_index; | |
988 | tpa_info = &fp->tpa_info[queue]; | |
989 | DP(NETIF_MSG_RX_STATUS, | |
990 | "calling tpa_stop on queue %d\n", | |
991 | queue); | |
992 | ||
993 | frag_size = le16_to_cpu(cqe->end_agg_cqe.pkt_len) - | |
994 | tpa_info->len_on_bd; | |
995 | ||
996 | if (fp->mode == TPA_MODE_GRO) | |
997 | pages = (frag_size + tpa_info->full_page - 1) / | |
998 | tpa_info->full_page; | |
999 | else | |
1000 | pages = SGE_PAGE_ALIGN(frag_size) >> | |
1001 | SGE_PAGE_SHIFT; | |
1002 | ||
1003 | bnx2x_tpa_stop(bp, fp, tpa_info, pages, | |
1004 | &cqe->end_agg_cqe, comp_ring_cons); | |
9f6c9258 | 1005 | #ifdef BNX2X_STOP_ON_ERROR |
621b4d66 DK |
1006 | if (bp->panic) |
1007 | return 0; | |
9f6c9258 DK |
1008 | #endif |
1009 | ||
621b4d66 DK |
1010 | bnx2x_update_sge_prod(fp, pages, &cqe->end_agg_cqe); |
1011 | goto next_cqe; | |
e52fcb24 ED |
1012 | } |
1013 | /* non TPA */ | |
621b4d66 | 1014 | len = le16_to_cpu(cqe_fp->pkt_len_or_gro_seg_len); |
e52fcb24 ED |
1015 | pad = cqe_fp->placement_offset; |
1016 | dma_sync_single_for_cpu(&bp->pdev->dev, | |
9f6c9258 | 1017 | dma_unmap_addr(rx_buf, mapping), |
e52fcb24 ED |
1018 | pad + RX_COPY_THRESH, |
1019 | DMA_FROM_DEVICE); | |
1020 | pad += NET_SKB_PAD; | |
1021 | prefetch(data + pad); /* speedup eth_type_trans() */ | |
1022 | /* is this an error packet? */ | |
1023 | if (unlikely(cqe_fp_flags & ETH_RX_ERROR_FALGS)) { | |
51c1a580 | 1024 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
e52fcb24 ED |
1025 | "ERROR flags %x rx packet %u\n", |
1026 | cqe_fp_flags, sw_comp_cons); | |
15192a8c | 1027 | bnx2x_fp_qstats(bp, fp)->rx_err_discard_pkt++; |
e52fcb24 ED |
1028 | goto reuse_rx; |
1029 | } | |
9f6c9258 | 1030 | |
e52fcb24 ED |
1031 | /* Since we don't have a jumbo ring |
1032 | * copy small packets if mtu > 1500 | |
1033 | */ | |
1034 | if ((bp->dev->mtu > ETH_MAX_PACKET_SIZE) && | |
1035 | (len <= RX_COPY_THRESH)) { | |
45abfb10 | 1036 | skb = napi_alloc_skb(&fp->napi, len); |
e52fcb24 | 1037 | if (skb == NULL) { |
51c1a580 | 1038 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
e52fcb24 | 1039 | "ERROR packet dropped because of alloc failure\n"); |
15192a8c | 1040 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
9f6c9258 DK |
1041 | goto reuse_rx; |
1042 | } | |
e52fcb24 ED |
1043 | memcpy(skb->data, data + pad, len); |
1044 | bnx2x_reuse_rx_data(fp, bd_cons, bd_prod); | |
1045 | } else { | |
996dedba MS |
1046 | if (likely(bnx2x_alloc_rx_data(bp, fp, bd_prod, |
1047 | GFP_ATOMIC) == 0)) { | |
9f6c9258 | 1048 | dma_unmap_single(&bp->pdev->dev, |
e52fcb24 | 1049 | dma_unmap_addr(rx_buf, mapping), |
a8c94b91 | 1050 | fp->rx_buf_size, |
9f6c9258 | 1051 | DMA_FROM_DEVICE); |
d46d132c | 1052 | skb = build_skb(data, fp->rx_frag_size); |
e52fcb24 | 1053 | if (unlikely(!skb)) { |
d46d132c | 1054 | bnx2x_frag_free(fp, data); |
15192a8c BW |
1055 | bnx2x_fp_qstats(bp, fp)-> |
1056 | rx_skb_alloc_failed++; | |
e52fcb24 ED |
1057 | goto next_rx; |
1058 | } | |
9f6c9258 | 1059 | skb_reserve(skb, pad); |
9f6c9258 | 1060 | } else { |
51c1a580 MS |
1061 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
1062 | "ERROR packet dropped because of alloc failure\n"); | |
15192a8c | 1063 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
9f6c9258 | 1064 | reuse_rx: |
e52fcb24 | 1065 | bnx2x_reuse_rx_data(fp, bd_cons, bd_prod); |
9f6c9258 DK |
1066 | goto next_rx; |
1067 | } | |
036d2df9 | 1068 | } |
9f6c9258 | 1069 | |
036d2df9 DK |
1070 | skb_put(skb, len); |
1071 | skb->protocol = eth_type_trans(skb, bp->dev); | |
9f6c9258 | 1072 | |
036d2df9 | 1073 | /* Set Toeplitz hash for a none-LRO skb */ |
5495ab75 TH |
1074 | rxhash = bnx2x_get_rxhash(bp, cqe_fp, &rxhash_type); |
1075 | skb_set_hash(skb, rxhash, rxhash_type); | |
9f6c9258 | 1076 | |
036d2df9 | 1077 | skb_checksum_none_assert(skb); |
f85582f8 | 1078 | |
d6cb3e41 | 1079 | if (bp->dev->features & NETIF_F_RXCSUM) |
15192a8c BW |
1080 | bnx2x_csum_validate(skb, cqe, fp, |
1081 | bnx2x_fp_qstats(bp, fp)); | |
9f6c9258 | 1082 | |
f233cafe | 1083 | skb_record_rx_queue(skb, fp->rx_queue); |
9f6c9258 | 1084 | |
eeed018c | 1085 | /* Check if this packet was timestamped */ |
56daf66d | 1086 | if (unlikely(cqe->fast_path_cqe.type_error_flags & |
eeed018c MK |
1087 | (1 << ETH_FAST_PATH_RX_CQE_PTP_PKT_SHIFT))) |
1088 | bnx2x_set_rx_ts(bp, skb); | |
1089 | ||
619c5cb6 VZ |
1090 | if (le16_to_cpu(cqe_fp->pars_flags.flags) & |
1091 | PARSING_FLAGS_VLAN) | |
86a9bad3 | 1092 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), |
619c5cb6 | 1093 | le16_to_cpu(cqe_fp->vlan_tag)); |
9f6c9258 | 1094 | |
8b80cda5 | 1095 | skb_mark_napi_id(skb, &fp->napi); |
8f20aa57 DK |
1096 | |
1097 | if (bnx2x_fp_ll_polling(fp)) | |
1098 | netif_receive_skb(skb); | |
1099 | else | |
1100 | napi_gro_receive(&fp->napi, skb); | |
9f6c9258 | 1101 | next_rx: |
e52fcb24 | 1102 | rx_buf->data = NULL; |
9f6c9258 DK |
1103 | |
1104 | bd_cons = NEXT_RX_IDX(bd_cons); | |
1105 | bd_prod = NEXT_RX_IDX(bd_prod); | |
1106 | bd_prod_fw = NEXT_RX_IDX(bd_prod_fw); | |
1107 | rx_pkt++; | |
1108 | next_cqe: | |
1109 | sw_comp_prod = NEXT_RCQ_IDX(sw_comp_prod); | |
1110 | sw_comp_cons = NEXT_RCQ_IDX(sw_comp_cons); | |
1111 | ||
75b29459 DK |
1112 | /* mark CQE as free */ |
1113 | BNX2X_SEED_CQE(cqe_fp); | |
1114 | ||
9f6c9258 DK |
1115 | if (rx_pkt == budget) |
1116 | break; | |
75b29459 DK |
1117 | |
1118 | comp_ring_cons = RCQ_BD(sw_comp_cons); | |
1119 | cqe = &fp->rx_comp_ring[comp_ring_cons]; | |
1120 | cqe_fp = &cqe->fast_path_cqe; | |
9f6c9258 DK |
1121 | } /* while */ |
1122 | ||
1123 | fp->rx_bd_cons = bd_cons; | |
1124 | fp->rx_bd_prod = bd_prod_fw; | |
1125 | fp->rx_comp_cons = sw_comp_cons; | |
1126 | fp->rx_comp_prod = sw_comp_prod; | |
1127 | ||
1128 | /* Update producers */ | |
1129 | bnx2x_update_rx_prod(bp, fp, bd_prod_fw, sw_comp_prod, | |
1130 | fp->rx_sge_prod); | |
1131 | ||
1132 | fp->rx_pkt += rx_pkt; | |
1133 | fp->rx_calls++; | |
1134 | ||
1135 | return rx_pkt; | |
1136 | } | |
1137 | ||
1138 | static irqreturn_t bnx2x_msix_fp_int(int irq, void *fp_cookie) | |
1139 | { | |
1140 | struct bnx2x_fastpath *fp = fp_cookie; | |
1141 | struct bnx2x *bp = fp->bp; | |
6383c0b3 | 1142 | u8 cos; |
9f6c9258 | 1143 | |
51c1a580 MS |
1144 | DP(NETIF_MSG_INTR, |
1145 | "got an MSI-X interrupt on IDX:SB [fp %d fw_sd %d igusb %d]\n", | |
523224a3 | 1146 | fp->index, fp->fw_sb_id, fp->igu_sb_id); |
ecf01c22 | 1147 | |
523224a3 | 1148 | bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, 0, IGU_INT_DISABLE, 0); |
9f6c9258 DK |
1149 | |
1150 | #ifdef BNX2X_STOP_ON_ERROR | |
1151 | if (unlikely(bp->panic)) | |
1152 | return IRQ_HANDLED; | |
1153 | #endif | |
1154 | ||
1155 | /* Handle Rx and Tx according to MSI-X vector */ | |
6383c0b3 | 1156 | for_each_cos_in_tx_queue(fp, cos) |
65565884 | 1157 | prefetch(fp->txdata_ptr[cos]->tx_cons_sb); |
6383c0b3 | 1158 | |
523224a3 | 1159 | prefetch(&fp->sb_running_index[SM_RX_ID]); |
f5fbf115 | 1160 | napi_schedule_irqoff(&bnx2x_fp(bp, fp->index, napi)); |
9f6c9258 DK |
1161 | |
1162 | return IRQ_HANDLED; | |
1163 | } | |
1164 | ||
9f6c9258 DK |
1165 | /* HW Lock for shared dual port PHYs */ |
1166 | void bnx2x_acquire_phy_lock(struct bnx2x *bp) | |
1167 | { | |
1168 | mutex_lock(&bp->port.phy_mutex); | |
1169 | ||
8203c4b6 | 1170 | bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_MDIO); |
9f6c9258 DK |
1171 | } |
1172 | ||
1173 | void bnx2x_release_phy_lock(struct bnx2x *bp) | |
1174 | { | |
8203c4b6 | 1175 | bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_MDIO); |
9f6c9258 DK |
1176 | |
1177 | mutex_unlock(&bp->port.phy_mutex); | |
1178 | } | |
1179 | ||
0793f83f DK |
1180 | /* calculates MF speed according to current linespeed and MF configuration */ |
1181 | u16 bnx2x_get_mf_speed(struct bnx2x *bp) | |
1182 | { | |
1183 | u16 line_speed = bp->link_vars.line_speed; | |
1184 | if (IS_MF(bp)) { | |
faa6fcbb DK |
1185 | u16 maxCfg = bnx2x_extract_max_cfg(bp, |
1186 | bp->mf_config[BP_VN(bp)]); | |
1187 | ||
1188 | /* Calculate the current MAX line speed limit for the MF | |
1189 | * devices | |
0793f83f | 1190 | */ |
faa6fcbb DK |
1191 | if (IS_MF_SI(bp)) |
1192 | line_speed = (line_speed * maxCfg) / 100; | |
1193 | else { /* SD mode */ | |
0793f83f DK |
1194 | u16 vn_max_rate = maxCfg * 100; |
1195 | ||
1196 | if (vn_max_rate < line_speed) | |
1197 | line_speed = vn_max_rate; | |
faa6fcbb | 1198 | } |
0793f83f DK |
1199 | } |
1200 | ||
1201 | return line_speed; | |
1202 | } | |
1203 | ||
2ae17f66 VZ |
1204 | /** |
1205 | * bnx2x_fill_report_data - fill link report data to report | |
1206 | * | |
1207 | * @bp: driver handle | |
1208 | * @data: link state to update | |
1209 | * | |
1210 | * It uses a none-atomic bit operations because is called under the mutex. | |
1211 | */ | |
1191cb83 ED |
1212 | static void bnx2x_fill_report_data(struct bnx2x *bp, |
1213 | struct bnx2x_link_report_data *data) | |
2ae17f66 | 1214 | { |
2ae17f66 VZ |
1215 | memset(data, 0, sizeof(*data)); |
1216 | ||
6495d15a DK |
1217 | if (IS_PF(bp)) { |
1218 | /* Fill the report data: effective line speed */ | |
1219 | data->line_speed = bnx2x_get_mf_speed(bp); | |
1220 | ||
1221 | /* Link is down */ | |
1222 | if (!bp->link_vars.link_up || (bp->flags & MF_FUNC_DIS)) | |
1223 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, | |
1224 | &data->link_report_flags); | |
1225 | ||
1226 | if (!BNX2X_NUM_ETH_QUEUES(bp)) | |
1227 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, | |
1228 | &data->link_report_flags); | |
1229 | ||
1230 | /* Full DUPLEX */ | |
1231 | if (bp->link_vars.duplex == DUPLEX_FULL) | |
1232 | __set_bit(BNX2X_LINK_REPORT_FD, | |
1233 | &data->link_report_flags); | |
1234 | ||
1235 | /* Rx Flow Control is ON */ | |
1236 | if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_RX) | |
1237 | __set_bit(BNX2X_LINK_REPORT_RX_FC_ON, | |
1238 | &data->link_report_flags); | |
1239 | ||
1240 | /* Tx Flow Control is ON */ | |
1241 | if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX) | |
1242 | __set_bit(BNX2X_LINK_REPORT_TX_FC_ON, | |
1243 | &data->link_report_flags); | |
1244 | } else { /* VF */ | |
1245 | *data = bp->vf_link_vars; | |
1246 | } | |
2ae17f66 VZ |
1247 | } |
1248 | ||
1249 | /** | |
1250 | * bnx2x_link_report - report link status to OS. | |
1251 | * | |
1252 | * @bp: driver handle | |
1253 | * | |
1254 | * Calls the __bnx2x_link_report() under the same locking scheme | |
1255 | * as a link/PHY state managing code to ensure a consistent link | |
1256 | * reporting. | |
1257 | */ | |
1258 | ||
9f6c9258 DK |
1259 | void bnx2x_link_report(struct bnx2x *bp) |
1260 | { | |
2ae17f66 VZ |
1261 | bnx2x_acquire_phy_lock(bp); |
1262 | __bnx2x_link_report(bp); | |
1263 | bnx2x_release_phy_lock(bp); | |
1264 | } | |
9f6c9258 | 1265 | |
2ae17f66 VZ |
1266 | /** |
1267 | * __bnx2x_link_report - report link status to OS. | |
1268 | * | |
1269 | * @bp: driver handle | |
1270 | * | |
16a5fd92 | 1271 | * None atomic implementation. |
2ae17f66 VZ |
1272 | * Should be called under the phy_lock. |
1273 | */ | |
1274 | void __bnx2x_link_report(struct bnx2x *bp) | |
1275 | { | |
1276 | struct bnx2x_link_report_data cur_data; | |
9f6c9258 | 1277 | |
2ae17f66 | 1278 | /* reread mf_cfg */ |
ad5afc89 | 1279 | if (IS_PF(bp) && !CHIP_IS_E1(bp)) |
2ae17f66 VZ |
1280 | bnx2x_read_mf_cfg(bp); |
1281 | ||
1282 | /* Read the current link report info */ | |
1283 | bnx2x_fill_report_data(bp, &cur_data); | |
1284 | ||
1285 | /* Don't report link down or exactly the same link status twice */ | |
1286 | if (!memcmp(&cur_data, &bp->last_reported_link, sizeof(cur_data)) || | |
1287 | (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, | |
1288 | &bp->last_reported_link.link_report_flags) && | |
1289 | test_bit(BNX2X_LINK_REPORT_LINK_DOWN, | |
1290 | &cur_data.link_report_flags))) | |
1291 | return; | |
1292 | ||
1293 | bp->link_cnt++; | |
9f6c9258 | 1294 | |
2ae17f66 VZ |
1295 | /* We are going to report a new link parameters now - |
1296 | * remember the current data for the next time. | |
1297 | */ | |
1298 | memcpy(&bp->last_reported_link, &cur_data, sizeof(cur_data)); | |
9f6c9258 | 1299 | |
6495d15a DK |
1300 | /* propagate status to VFs */ |
1301 | if (IS_PF(bp)) | |
1302 | bnx2x_iov_link_update(bp); | |
1303 | ||
2ae17f66 VZ |
1304 | if (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
1305 | &cur_data.link_report_flags)) { | |
1306 | netif_carrier_off(bp->dev); | |
1307 | netdev_err(bp->dev, "NIC Link is Down\n"); | |
1308 | return; | |
1309 | } else { | |
94f05b0f JP |
1310 | const char *duplex; |
1311 | const char *flow; | |
1312 | ||
2ae17f66 | 1313 | netif_carrier_on(bp->dev); |
9f6c9258 | 1314 | |
2ae17f66 VZ |
1315 | if (test_and_clear_bit(BNX2X_LINK_REPORT_FD, |
1316 | &cur_data.link_report_flags)) | |
94f05b0f | 1317 | duplex = "full"; |
9f6c9258 | 1318 | else |
94f05b0f | 1319 | duplex = "half"; |
9f6c9258 | 1320 | |
2ae17f66 VZ |
1321 | /* Handle the FC at the end so that only these flags would be |
1322 | * possibly set. This way we may easily check if there is no FC | |
1323 | * enabled. | |
1324 | */ | |
1325 | if (cur_data.link_report_flags) { | |
1326 | if (test_bit(BNX2X_LINK_REPORT_RX_FC_ON, | |
1327 | &cur_data.link_report_flags)) { | |
2ae17f66 VZ |
1328 | if (test_bit(BNX2X_LINK_REPORT_TX_FC_ON, |
1329 | &cur_data.link_report_flags)) | |
94f05b0f JP |
1330 | flow = "ON - receive & transmit"; |
1331 | else | |
1332 | flow = "ON - receive"; | |
9f6c9258 | 1333 | } else { |
94f05b0f | 1334 | flow = "ON - transmit"; |
9f6c9258 | 1335 | } |
94f05b0f JP |
1336 | } else { |
1337 | flow = "none"; | |
9f6c9258 | 1338 | } |
94f05b0f JP |
1339 | netdev_info(bp->dev, "NIC Link is Up, %d Mbps %s duplex, Flow control: %s\n", |
1340 | cur_data.line_speed, duplex, flow); | |
9f6c9258 DK |
1341 | } |
1342 | } | |
1343 | ||
1191cb83 ED |
1344 | static void bnx2x_set_next_page_sgl(struct bnx2x_fastpath *fp) |
1345 | { | |
1346 | int i; | |
1347 | ||
1348 | for (i = 1; i <= NUM_RX_SGE_PAGES; i++) { | |
1349 | struct eth_rx_sge *sge; | |
1350 | ||
1351 | sge = &fp->rx_sge_ring[RX_SGE_CNT * i - 2]; | |
1352 | sge->addr_hi = | |
1353 | cpu_to_le32(U64_HI(fp->rx_sge_mapping + | |
1354 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); | |
1355 | ||
1356 | sge->addr_lo = | |
1357 | cpu_to_le32(U64_LO(fp->rx_sge_mapping + | |
1358 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); | |
1359 | } | |
1360 | } | |
1361 | ||
1362 | static void bnx2x_free_tpa_pool(struct bnx2x *bp, | |
1363 | struct bnx2x_fastpath *fp, int last) | |
1364 | { | |
1365 | int i; | |
1366 | ||
1367 | for (i = 0; i < last; i++) { | |
1368 | struct bnx2x_agg_info *tpa_info = &fp->tpa_info[i]; | |
1369 | struct sw_rx_bd *first_buf = &tpa_info->first_buf; | |
1370 | u8 *data = first_buf->data; | |
1371 | ||
1372 | if (data == NULL) { | |
1373 | DP(NETIF_MSG_IFDOWN, "tpa bin %d empty on free\n", i); | |
1374 | continue; | |
1375 | } | |
1376 | if (tpa_info->tpa_state == BNX2X_TPA_START) | |
1377 | dma_unmap_single(&bp->pdev->dev, | |
1378 | dma_unmap_addr(first_buf, mapping), | |
1379 | fp->rx_buf_size, DMA_FROM_DEVICE); | |
d46d132c | 1380 | bnx2x_frag_free(fp, data); |
1191cb83 ED |
1381 | first_buf->data = NULL; |
1382 | } | |
1383 | } | |
1384 | ||
55c11941 MS |
1385 | void bnx2x_init_rx_rings_cnic(struct bnx2x *bp) |
1386 | { | |
1387 | int j; | |
1388 | ||
1389 | for_each_rx_queue_cnic(bp, j) { | |
1390 | struct bnx2x_fastpath *fp = &bp->fp[j]; | |
1391 | ||
1392 | fp->rx_bd_cons = 0; | |
1393 | ||
1394 | /* Activate BD ring */ | |
1395 | /* Warning! | |
1396 | * this will generate an interrupt (to the TSTORM) | |
1397 | * must only be done after chip is initialized | |
1398 | */ | |
1399 | bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, | |
1400 | fp->rx_sge_prod); | |
1401 | } | |
1402 | } | |
1403 | ||
9f6c9258 DK |
1404 | void bnx2x_init_rx_rings(struct bnx2x *bp) |
1405 | { | |
1406 | int func = BP_FUNC(bp); | |
523224a3 | 1407 | u16 ring_prod; |
9f6c9258 | 1408 | int i, j; |
25141580 | 1409 | |
b3b83c3f | 1410 | /* Allocate TPA resources */ |
55c11941 | 1411 | for_each_eth_queue(bp, j) { |
523224a3 | 1412 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
9f6c9258 | 1413 | |
a8c94b91 VZ |
1414 | DP(NETIF_MSG_IFUP, |
1415 | "mtu %d rx_buf_size %d\n", bp->dev->mtu, fp->rx_buf_size); | |
1416 | ||
7e6b4d44 | 1417 | if (fp->mode != TPA_MODE_DISABLED) { |
16a5fd92 | 1418 | /* Fill the per-aggregation pool */ |
dfacf138 | 1419 | for (i = 0; i < MAX_AGG_QS(bp); i++) { |
619c5cb6 VZ |
1420 | struct bnx2x_agg_info *tpa_info = |
1421 | &fp->tpa_info[i]; | |
1422 | struct sw_rx_bd *first_buf = | |
1423 | &tpa_info->first_buf; | |
1424 | ||
996dedba MS |
1425 | first_buf->data = |
1426 | bnx2x_frag_alloc(fp, GFP_KERNEL); | |
e52fcb24 | 1427 | if (!first_buf->data) { |
51c1a580 MS |
1428 | BNX2X_ERR("Failed to allocate TPA skb pool for queue[%d] - disabling TPA on this queue!\n", |
1429 | j); | |
9f6c9258 | 1430 | bnx2x_free_tpa_pool(bp, fp, i); |
7e6b4d44 | 1431 | fp->mode = TPA_MODE_DISABLED; |
9f6c9258 DK |
1432 | break; |
1433 | } | |
619c5cb6 VZ |
1434 | dma_unmap_addr_set(first_buf, mapping, 0); |
1435 | tpa_info->tpa_state = BNX2X_TPA_STOP; | |
9f6c9258 | 1436 | } |
523224a3 DK |
1437 | |
1438 | /* "next page" elements initialization */ | |
1439 | bnx2x_set_next_page_sgl(fp); | |
1440 | ||
1441 | /* set SGEs bit mask */ | |
1442 | bnx2x_init_sge_ring_bit_mask(fp); | |
1443 | ||
1444 | /* Allocate SGEs and initialize the ring elements */ | |
1445 | for (i = 0, ring_prod = 0; | |
1446 | i < MAX_RX_SGE_CNT*NUM_RX_SGE_PAGES; i++) { | |
1447 | ||
996dedba MS |
1448 | if (bnx2x_alloc_rx_sge(bp, fp, ring_prod, |
1449 | GFP_KERNEL) < 0) { | |
51c1a580 MS |
1450 | BNX2X_ERR("was only able to allocate %d rx sges\n", |
1451 | i); | |
1452 | BNX2X_ERR("disabling TPA for queue[%d]\n", | |
1453 | j); | |
523224a3 | 1454 | /* Cleanup already allocated elements */ |
619c5cb6 VZ |
1455 | bnx2x_free_rx_sge_range(bp, fp, |
1456 | ring_prod); | |
1457 | bnx2x_free_tpa_pool(bp, fp, | |
dfacf138 | 1458 | MAX_AGG_QS(bp)); |
7e6b4d44 | 1459 | fp->mode = TPA_MODE_DISABLED; |
523224a3 DK |
1460 | ring_prod = 0; |
1461 | break; | |
1462 | } | |
1463 | ring_prod = NEXT_SGE_IDX(ring_prod); | |
1464 | } | |
1465 | ||
1466 | fp->rx_sge_prod = ring_prod; | |
9f6c9258 DK |
1467 | } |
1468 | } | |
1469 | ||
55c11941 | 1470 | for_each_eth_queue(bp, j) { |
9f6c9258 DK |
1471 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
1472 | ||
1473 | fp->rx_bd_cons = 0; | |
9f6c9258 | 1474 | |
b3b83c3f DK |
1475 | /* Activate BD ring */ |
1476 | /* Warning! | |
1477 | * this will generate an interrupt (to the TSTORM) | |
1478 | * must only be done after chip is initialized | |
1479 | */ | |
1480 | bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, | |
1481 | fp->rx_sge_prod); | |
9f6c9258 | 1482 | |
9f6c9258 DK |
1483 | if (j != 0) |
1484 | continue; | |
1485 | ||
619c5cb6 | 1486 | if (CHIP_IS_E1(bp)) { |
f2e0899f DK |
1487 | REG_WR(bp, BAR_USTRORM_INTMEM + |
1488 | USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func), | |
1489 | U64_LO(fp->rx_comp_mapping)); | |
1490 | REG_WR(bp, BAR_USTRORM_INTMEM + | |
1491 | USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func) + 4, | |
1492 | U64_HI(fp->rx_comp_mapping)); | |
1493 | } | |
9f6c9258 DK |
1494 | } |
1495 | } | |
f85582f8 | 1496 | |
55c11941 | 1497 | static void bnx2x_free_tx_skbs_queue(struct bnx2x_fastpath *fp) |
9f6c9258 | 1498 | { |
6383c0b3 | 1499 | u8 cos; |
55c11941 | 1500 | struct bnx2x *bp = fp->bp; |
9f6c9258 | 1501 | |
55c11941 MS |
1502 | for_each_cos_in_tx_queue(fp, cos) { |
1503 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; | |
1504 | unsigned pkts_compl = 0, bytes_compl = 0; | |
9f6c9258 | 1505 | |
55c11941 MS |
1506 | u16 sw_prod = txdata->tx_pkt_prod; |
1507 | u16 sw_cons = txdata->tx_pkt_cons; | |
9f6c9258 | 1508 | |
55c11941 MS |
1509 | while (sw_cons != sw_prod) { |
1510 | bnx2x_free_tx_pkt(bp, txdata, TX_BD(sw_cons), | |
1511 | &pkts_compl, &bytes_compl); | |
1512 | sw_cons++; | |
9f6c9258 | 1513 | } |
55c11941 MS |
1514 | |
1515 | netdev_tx_reset_queue( | |
1516 | netdev_get_tx_queue(bp->dev, | |
1517 | txdata->txq_index)); | |
1518 | } | |
1519 | } | |
1520 | ||
1521 | static void bnx2x_free_tx_skbs_cnic(struct bnx2x *bp) | |
1522 | { | |
1523 | int i; | |
1524 | ||
1525 | for_each_tx_queue_cnic(bp, i) { | |
1526 | bnx2x_free_tx_skbs_queue(&bp->fp[i]); | |
1527 | } | |
1528 | } | |
1529 | ||
1530 | static void bnx2x_free_tx_skbs(struct bnx2x *bp) | |
1531 | { | |
1532 | int i; | |
1533 | ||
1534 | for_each_eth_queue(bp, i) { | |
1535 | bnx2x_free_tx_skbs_queue(&bp->fp[i]); | |
9f6c9258 DK |
1536 | } |
1537 | } | |
1538 | ||
b3b83c3f DK |
1539 | static void bnx2x_free_rx_bds(struct bnx2x_fastpath *fp) |
1540 | { | |
1541 | struct bnx2x *bp = fp->bp; | |
1542 | int i; | |
1543 | ||
1544 | /* ring wasn't allocated */ | |
1545 | if (fp->rx_buf_ring == NULL) | |
1546 | return; | |
1547 | ||
1548 | for (i = 0; i < NUM_RX_BD; i++) { | |
1549 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[i]; | |
e52fcb24 | 1550 | u8 *data = rx_buf->data; |
b3b83c3f | 1551 | |
e52fcb24 | 1552 | if (data == NULL) |
b3b83c3f | 1553 | continue; |
b3b83c3f DK |
1554 | dma_unmap_single(&bp->pdev->dev, |
1555 | dma_unmap_addr(rx_buf, mapping), | |
1556 | fp->rx_buf_size, DMA_FROM_DEVICE); | |
1557 | ||
e52fcb24 | 1558 | rx_buf->data = NULL; |
d46d132c | 1559 | bnx2x_frag_free(fp, data); |
b3b83c3f DK |
1560 | } |
1561 | } | |
1562 | ||
55c11941 MS |
1563 | static void bnx2x_free_rx_skbs_cnic(struct bnx2x *bp) |
1564 | { | |
1565 | int j; | |
1566 | ||
1567 | for_each_rx_queue_cnic(bp, j) { | |
1568 | bnx2x_free_rx_bds(&bp->fp[j]); | |
1569 | } | |
1570 | } | |
1571 | ||
9f6c9258 DK |
1572 | static void bnx2x_free_rx_skbs(struct bnx2x *bp) |
1573 | { | |
b3b83c3f | 1574 | int j; |
9f6c9258 | 1575 | |
55c11941 | 1576 | for_each_eth_queue(bp, j) { |
9f6c9258 DK |
1577 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
1578 | ||
b3b83c3f | 1579 | bnx2x_free_rx_bds(fp); |
9f6c9258 | 1580 | |
7e6b4d44 | 1581 | if (fp->mode != TPA_MODE_DISABLED) |
dfacf138 | 1582 | bnx2x_free_tpa_pool(bp, fp, MAX_AGG_QS(bp)); |
9f6c9258 DK |
1583 | } |
1584 | } | |
1585 | ||
a8f47eb7 | 1586 | static void bnx2x_free_skbs_cnic(struct bnx2x *bp) |
55c11941 MS |
1587 | { |
1588 | bnx2x_free_tx_skbs_cnic(bp); | |
1589 | bnx2x_free_rx_skbs_cnic(bp); | |
1590 | } | |
1591 | ||
9f6c9258 DK |
1592 | void bnx2x_free_skbs(struct bnx2x *bp) |
1593 | { | |
1594 | bnx2x_free_tx_skbs(bp); | |
1595 | bnx2x_free_rx_skbs(bp); | |
1596 | } | |
1597 | ||
e3835b99 DK |
1598 | void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value) |
1599 | { | |
1600 | /* load old values */ | |
1601 | u32 mf_cfg = bp->mf_config[BP_VN(bp)]; | |
1602 | ||
1603 | if (value != bnx2x_extract_max_cfg(bp, mf_cfg)) { | |
1604 | /* leave all but MAX value */ | |
1605 | mf_cfg &= ~FUNC_MF_CFG_MAX_BW_MASK; | |
1606 | ||
1607 | /* set new MAX value */ | |
1608 | mf_cfg |= (value << FUNC_MF_CFG_MAX_BW_SHIFT) | |
1609 | & FUNC_MF_CFG_MAX_BW_MASK; | |
1610 | ||
1611 | bnx2x_fw_command(bp, DRV_MSG_CODE_SET_MF_BW, mf_cfg); | |
1612 | } | |
1613 | } | |
1614 | ||
ca92429f DK |
1615 | /** |
1616 | * bnx2x_free_msix_irqs - free previously requested MSI-X IRQ vectors | |
1617 | * | |
1618 | * @bp: driver handle | |
1619 | * @nvecs: number of vectors to be released | |
1620 | */ | |
1621 | static void bnx2x_free_msix_irqs(struct bnx2x *bp, int nvecs) | |
9f6c9258 | 1622 | { |
ca92429f | 1623 | int i, offset = 0; |
9f6c9258 | 1624 | |
ca92429f DK |
1625 | if (nvecs == offset) |
1626 | return; | |
ad5afc89 AE |
1627 | |
1628 | /* VFs don't have a default SB */ | |
1629 | if (IS_PF(bp)) { | |
1630 | free_irq(bp->msix_table[offset].vector, bp->dev); | |
1631 | DP(NETIF_MSG_IFDOWN, "released sp irq (%d)\n", | |
1632 | bp->msix_table[offset].vector); | |
1633 | offset++; | |
1634 | } | |
55c11941 MS |
1635 | |
1636 | if (CNIC_SUPPORT(bp)) { | |
1637 | if (nvecs == offset) | |
1638 | return; | |
1639 | offset++; | |
1640 | } | |
ca92429f | 1641 | |
ec6ba945 | 1642 | for_each_eth_queue(bp, i) { |
ca92429f DK |
1643 | if (nvecs == offset) |
1644 | return; | |
51c1a580 MS |
1645 | DP(NETIF_MSG_IFDOWN, "about to release fp #%d->%d irq\n", |
1646 | i, bp->msix_table[offset].vector); | |
9f6c9258 | 1647 | |
ca92429f | 1648 | free_irq(bp->msix_table[offset++].vector, &bp->fp[i]); |
9f6c9258 DK |
1649 | } |
1650 | } | |
1651 | ||
d6214d7a | 1652 | void bnx2x_free_irq(struct bnx2x *bp) |
9f6c9258 | 1653 | { |
30a5de77 | 1654 | if (bp->flags & USING_MSIX_FLAG && |
ad5afc89 AE |
1655 | !(bp->flags & USING_SINGLE_MSIX_FLAG)) { |
1656 | int nvecs = BNX2X_NUM_ETH_QUEUES(bp) + CNIC_SUPPORT(bp); | |
1657 | ||
1658 | /* vfs don't have a default status block */ | |
1659 | if (IS_PF(bp)) | |
1660 | nvecs++; | |
1661 | ||
1662 | bnx2x_free_msix_irqs(bp, nvecs); | |
1663 | } else { | |
30a5de77 | 1664 | free_irq(bp->dev->irq, bp->dev); |
ad5afc89 | 1665 | } |
9f6c9258 DK |
1666 | } |
1667 | ||
0e8d2ec5 | 1668 | int bnx2x_enable_msix(struct bnx2x *bp) |
9f6c9258 | 1669 | { |
1ab4434c | 1670 | int msix_vec = 0, i, rc; |
9f6c9258 | 1671 | |
1ab4434c AE |
1672 | /* VFs don't have a default status block */ |
1673 | if (IS_PF(bp)) { | |
1674 | bp->msix_table[msix_vec].entry = msix_vec; | |
1675 | BNX2X_DEV_INFO("msix_table[0].entry = %d (slowpath)\n", | |
1676 | bp->msix_table[0].entry); | |
1677 | msix_vec++; | |
1678 | } | |
9f6c9258 | 1679 | |
55c11941 MS |
1680 | /* Cnic requires an msix vector for itself */ |
1681 | if (CNIC_SUPPORT(bp)) { | |
1682 | bp->msix_table[msix_vec].entry = msix_vec; | |
1683 | BNX2X_DEV_INFO("msix_table[%d].entry = %d (CNIC)\n", | |
1684 | msix_vec, bp->msix_table[msix_vec].entry); | |
1685 | msix_vec++; | |
1686 | } | |
1687 | ||
6383c0b3 | 1688 | /* We need separate vectors for ETH queues only (not FCoE) */ |
ec6ba945 | 1689 | for_each_eth_queue(bp, i) { |
d6214d7a | 1690 | bp->msix_table[msix_vec].entry = msix_vec; |
51c1a580 MS |
1691 | BNX2X_DEV_INFO("msix_table[%d].entry = %d (fastpath #%u)\n", |
1692 | msix_vec, msix_vec, i); | |
d6214d7a | 1693 | msix_vec++; |
9f6c9258 DK |
1694 | } |
1695 | ||
1ab4434c AE |
1696 | DP(BNX2X_MSG_SP, "about to request enable msix with %d vectors\n", |
1697 | msix_vec); | |
d6214d7a | 1698 | |
a5444b17 AG |
1699 | rc = pci_enable_msix_range(bp->pdev, &bp->msix_table[0], |
1700 | BNX2X_MIN_MSIX_VEC_CNT(bp), msix_vec); | |
9f6c9258 DK |
1701 | /* |
1702 | * reconfigure number of tx/rx queues according to available | |
1703 | * MSI-X vectors | |
1704 | */ | |
a5444b17 | 1705 | if (rc == -ENOSPC) { |
30a5de77 | 1706 | /* Get by with single vector */ |
a5444b17 AG |
1707 | rc = pci_enable_msix_range(bp->pdev, &bp->msix_table[0], 1, 1); |
1708 | if (rc < 0) { | |
30a5de77 DK |
1709 | BNX2X_DEV_INFO("Single MSI-X is not attainable rc %d\n", |
1710 | rc); | |
1711 | goto no_msix; | |
1712 | } | |
1713 | ||
1714 | BNX2X_DEV_INFO("Using single MSI-X vector\n"); | |
1715 | bp->flags |= USING_SINGLE_MSIX_FLAG; | |
1716 | ||
55c11941 MS |
1717 | BNX2X_DEV_INFO("set number of queues to 1\n"); |
1718 | bp->num_ethernet_queues = 1; | |
1719 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; | |
30a5de77 | 1720 | } else if (rc < 0) { |
a5444b17 | 1721 | BNX2X_DEV_INFO("MSI-X is not attainable rc %d\n", rc); |
30a5de77 | 1722 | goto no_msix; |
a5444b17 AG |
1723 | } else if (rc < msix_vec) { |
1724 | /* how less vectors we will have? */ | |
1725 | int diff = msix_vec - rc; | |
1726 | ||
1727 | BNX2X_DEV_INFO("Trying to use less MSI-X vectors: %d\n", rc); | |
1728 | ||
1729 | /* | |
1730 | * decrease number of queues by number of unallocated entries | |
1731 | */ | |
1732 | bp->num_ethernet_queues -= diff; | |
1733 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; | |
1734 | ||
1735 | BNX2X_DEV_INFO("New queue configuration set: %d\n", | |
1736 | bp->num_queues); | |
9f6c9258 DK |
1737 | } |
1738 | ||
1739 | bp->flags |= USING_MSIX_FLAG; | |
1740 | ||
1741 | return 0; | |
30a5de77 DK |
1742 | |
1743 | no_msix: | |
1744 | /* fall to INTx if not enough memory */ | |
1745 | if (rc == -ENOMEM) | |
1746 | bp->flags |= DISABLE_MSI_FLAG; | |
1747 | ||
1748 | return rc; | |
9f6c9258 DK |
1749 | } |
1750 | ||
1751 | static int bnx2x_req_msix_irqs(struct bnx2x *bp) | |
1752 | { | |
ca92429f | 1753 | int i, rc, offset = 0; |
9f6c9258 | 1754 | |
ad5afc89 AE |
1755 | /* no default status block for vf */ |
1756 | if (IS_PF(bp)) { | |
1757 | rc = request_irq(bp->msix_table[offset++].vector, | |
1758 | bnx2x_msix_sp_int, 0, | |
1759 | bp->dev->name, bp->dev); | |
1760 | if (rc) { | |
1761 | BNX2X_ERR("request sp irq failed\n"); | |
1762 | return -EBUSY; | |
1763 | } | |
9f6c9258 DK |
1764 | } |
1765 | ||
55c11941 MS |
1766 | if (CNIC_SUPPORT(bp)) |
1767 | offset++; | |
1768 | ||
ec6ba945 | 1769 | for_each_eth_queue(bp, i) { |
9f6c9258 DK |
1770 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
1771 | snprintf(fp->name, sizeof(fp->name), "%s-fp-%d", | |
1772 | bp->dev->name, i); | |
1773 | ||
d6214d7a | 1774 | rc = request_irq(bp->msix_table[offset].vector, |
9f6c9258 DK |
1775 | bnx2x_msix_fp_int, 0, fp->name, fp); |
1776 | if (rc) { | |
ca92429f DK |
1777 | BNX2X_ERR("request fp #%d irq (%d) failed rc %d\n", i, |
1778 | bp->msix_table[offset].vector, rc); | |
1779 | bnx2x_free_msix_irqs(bp, offset); | |
9f6c9258 DK |
1780 | return -EBUSY; |
1781 | } | |
1782 | ||
d6214d7a | 1783 | offset++; |
9f6c9258 DK |
1784 | } |
1785 | ||
ec6ba945 | 1786 | i = BNX2X_NUM_ETH_QUEUES(bp); |
ad5afc89 AE |
1787 | if (IS_PF(bp)) { |
1788 | offset = 1 + CNIC_SUPPORT(bp); | |
1789 | netdev_info(bp->dev, | |
1790 | "using MSI-X IRQs: sp %d fp[%d] %d ... fp[%d] %d\n", | |
1791 | bp->msix_table[0].vector, | |
1792 | 0, bp->msix_table[offset].vector, | |
1793 | i - 1, bp->msix_table[offset + i - 1].vector); | |
1794 | } else { | |
1795 | offset = CNIC_SUPPORT(bp); | |
1796 | netdev_info(bp->dev, | |
1797 | "using MSI-X IRQs: fp[%d] %d ... fp[%d] %d\n", | |
1798 | 0, bp->msix_table[offset].vector, | |
1799 | i - 1, bp->msix_table[offset + i - 1].vector); | |
1800 | } | |
9f6c9258 DK |
1801 | return 0; |
1802 | } | |
1803 | ||
d6214d7a | 1804 | int bnx2x_enable_msi(struct bnx2x *bp) |
9f6c9258 DK |
1805 | { |
1806 | int rc; | |
1807 | ||
1808 | rc = pci_enable_msi(bp->pdev); | |
1809 | if (rc) { | |
51c1a580 | 1810 | BNX2X_DEV_INFO("MSI is not attainable\n"); |
9f6c9258 DK |
1811 | return -1; |
1812 | } | |
1813 | bp->flags |= USING_MSI_FLAG; | |
1814 | ||
1815 | return 0; | |
1816 | } | |
1817 | ||
1818 | static int bnx2x_req_irq(struct bnx2x *bp) | |
1819 | { | |
1820 | unsigned long flags; | |
30a5de77 | 1821 | unsigned int irq; |
9f6c9258 | 1822 | |
30a5de77 | 1823 | if (bp->flags & (USING_MSI_FLAG | USING_MSIX_FLAG)) |
9f6c9258 DK |
1824 | flags = 0; |
1825 | else | |
1826 | flags = IRQF_SHARED; | |
1827 | ||
30a5de77 DK |
1828 | if (bp->flags & USING_MSIX_FLAG) |
1829 | irq = bp->msix_table[0].vector; | |
1830 | else | |
1831 | irq = bp->pdev->irq; | |
1832 | ||
1833 | return request_irq(irq, bnx2x_interrupt, flags, bp->dev->name, bp->dev); | |
9f6c9258 DK |
1834 | } |
1835 | ||
c957d09f | 1836 | static int bnx2x_setup_irqs(struct bnx2x *bp) |
619c5cb6 VZ |
1837 | { |
1838 | int rc = 0; | |
30a5de77 DK |
1839 | if (bp->flags & USING_MSIX_FLAG && |
1840 | !(bp->flags & USING_SINGLE_MSIX_FLAG)) { | |
619c5cb6 VZ |
1841 | rc = bnx2x_req_msix_irqs(bp); |
1842 | if (rc) | |
1843 | return rc; | |
1844 | } else { | |
619c5cb6 VZ |
1845 | rc = bnx2x_req_irq(bp); |
1846 | if (rc) { | |
1847 | BNX2X_ERR("IRQ request failed rc %d, aborting\n", rc); | |
1848 | return rc; | |
1849 | } | |
1850 | if (bp->flags & USING_MSI_FLAG) { | |
1851 | bp->dev->irq = bp->pdev->irq; | |
30a5de77 DK |
1852 | netdev_info(bp->dev, "using MSI IRQ %d\n", |
1853 | bp->dev->irq); | |
1854 | } | |
1855 | if (bp->flags & USING_MSIX_FLAG) { | |
1856 | bp->dev->irq = bp->msix_table[0].vector; | |
1857 | netdev_info(bp->dev, "using MSIX IRQ %d\n", | |
1858 | bp->dev->irq); | |
619c5cb6 VZ |
1859 | } |
1860 | } | |
1861 | ||
1862 | return 0; | |
1863 | } | |
1864 | ||
55c11941 MS |
1865 | static void bnx2x_napi_enable_cnic(struct bnx2x *bp) |
1866 | { | |
1867 | int i; | |
1868 | ||
8f20aa57 | 1869 | for_each_rx_queue_cnic(bp, i) { |
074975d0 | 1870 | bnx2x_fp_busy_poll_init(&bp->fp[i]); |
55c11941 | 1871 | napi_enable(&bnx2x_fp(bp, i, napi)); |
8f20aa57 | 1872 | } |
55c11941 MS |
1873 | } |
1874 | ||
1191cb83 | 1875 | static void bnx2x_napi_enable(struct bnx2x *bp) |
9f6c9258 DK |
1876 | { |
1877 | int i; | |
1878 | ||
8f20aa57 | 1879 | for_each_eth_queue(bp, i) { |
074975d0 | 1880 | bnx2x_fp_busy_poll_init(&bp->fp[i]); |
9f6c9258 | 1881 | napi_enable(&bnx2x_fp(bp, i, napi)); |
8f20aa57 | 1882 | } |
9f6c9258 DK |
1883 | } |
1884 | ||
55c11941 MS |
1885 | static void bnx2x_napi_disable_cnic(struct bnx2x *bp) |
1886 | { | |
1887 | int i; | |
1888 | ||
8f20aa57 | 1889 | for_each_rx_queue_cnic(bp, i) { |
55c11941 | 1890 | napi_disable(&bnx2x_fp(bp, i, napi)); |
9a2620c8 YM |
1891 | while (!bnx2x_fp_ll_disable(&bp->fp[i])) |
1892 | usleep_range(1000, 2000); | |
8f20aa57 | 1893 | } |
55c11941 MS |
1894 | } |
1895 | ||
1191cb83 | 1896 | static void bnx2x_napi_disable(struct bnx2x *bp) |
9f6c9258 DK |
1897 | { |
1898 | int i; | |
1899 | ||
8f20aa57 | 1900 | for_each_eth_queue(bp, i) { |
9f6c9258 | 1901 | napi_disable(&bnx2x_fp(bp, i, napi)); |
9a2620c8 YM |
1902 | while (!bnx2x_fp_ll_disable(&bp->fp[i])) |
1903 | usleep_range(1000, 2000); | |
8f20aa57 | 1904 | } |
9f6c9258 DK |
1905 | } |
1906 | ||
1907 | void bnx2x_netif_start(struct bnx2x *bp) | |
1908 | { | |
4b7ed897 DK |
1909 | if (netif_running(bp->dev)) { |
1910 | bnx2x_napi_enable(bp); | |
55c11941 MS |
1911 | if (CNIC_LOADED(bp)) |
1912 | bnx2x_napi_enable_cnic(bp); | |
4b7ed897 DK |
1913 | bnx2x_int_enable(bp); |
1914 | if (bp->state == BNX2X_STATE_OPEN) | |
1915 | netif_tx_wake_all_queues(bp->dev); | |
9f6c9258 DK |
1916 | } |
1917 | } | |
1918 | ||
1919 | void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw) | |
1920 | { | |
1921 | bnx2x_int_disable_sync(bp, disable_hw); | |
1922 | bnx2x_napi_disable(bp); | |
55c11941 MS |
1923 | if (CNIC_LOADED(bp)) |
1924 | bnx2x_napi_disable_cnic(bp); | |
9f6c9258 | 1925 | } |
9f6c9258 | 1926 | |
f663dd9a | 1927 | u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 1928 | void *accel_priv, select_queue_fallback_t fallback) |
8307fa3e | 1929 | { |
8307fa3e | 1930 | struct bnx2x *bp = netdev_priv(dev); |
cdb9d6ae | 1931 | |
55c11941 | 1932 | if (CNIC_LOADED(bp) && !NO_FCOE(bp)) { |
8307fa3e VZ |
1933 | struct ethhdr *hdr = (struct ethhdr *)skb->data; |
1934 | u16 ether_type = ntohs(hdr->h_proto); | |
1935 | ||
1936 | /* Skip VLAN tag if present */ | |
1937 | if (ether_type == ETH_P_8021Q) { | |
1938 | struct vlan_ethhdr *vhdr = | |
1939 | (struct vlan_ethhdr *)skb->data; | |
1940 | ||
1941 | ether_type = ntohs(vhdr->h_vlan_encapsulated_proto); | |
1942 | } | |
1943 | ||
1944 | /* If ethertype is FCoE or FIP - use FCoE ring */ | |
1945 | if ((ether_type == ETH_P_FCOE) || (ether_type == ETH_P_FIP)) | |
6383c0b3 | 1946 | return bnx2x_fcoe_tx(bp, txq_index); |
8307fa3e | 1947 | } |
55c11941 | 1948 | |
cdb9d6ae | 1949 | /* select a non-FCoE queue */ |
99932d4f | 1950 | return fallback(dev, skb) % BNX2X_NUM_ETH_QUEUES(bp); |
8307fa3e VZ |
1951 | } |
1952 | ||
d6214d7a DK |
1953 | void bnx2x_set_num_queues(struct bnx2x *bp) |
1954 | { | |
96305234 | 1955 | /* RSS queues */ |
55c11941 | 1956 | bp->num_ethernet_queues = bnx2x_calc_num_queues(bp); |
ec6ba945 | 1957 | |
a3348722 | 1958 | /* override in STORAGE SD modes */ |
2e98ffc2 | 1959 | if (IS_MF_STORAGE_ONLY(bp)) |
55c11941 MS |
1960 | bp->num_ethernet_queues = 1; |
1961 | ||
ec6ba945 | 1962 | /* Add special queues */ |
55c11941 MS |
1963 | bp->num_cnic_queues = CNIC_SUPPORT(bp); /* For FCOE */ |
1964 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; | |
65565884 MS |
1965 | |
1966 | BNX2X_DEV_INFO("set number of queues to %d\n", bp->num_queues); | |
ec6ba945 VZ |
1967 | } |
1968 | ||
cdb9d6ae VZ |
1969 | /** |
1970 | * bnx2x_set_real_num_queues - configure netdev->real_num_[tx,rx]_queues | |
1971 | * | |
1972 | * @bp: Driver handle | |
1973 | * | |
1974 | * We currently support for at most 16 Tx queues for each CoS thus we will | |
1975 | * allocate a multiple of 16 for ETH L2 rings according to the value of the | |
1976 | * bp->max_cos. | |
1977 | * | |
1978 | * If there is an FCoE L2 queue the appropriate Tx queue will have the next | |
1979 | * index after all ETH L2 indices. | |
1980 | * | |
1981 | * If the actual number of Tx queues (for each CoS) is less than 16 then there | |
1982 | * will be the holes at the end of each group of 16 ETh L2 indices (0..15, | |
16a5fd92 | 1983 | * 16..31,...) with indices that are not coupled with any real Tx queue. |
cdb9d6ae VZ |
1984 | * |
1985 | * The proper configuration of skb->queue_mapping is handled by | |
1986 | * bnx2x_select_queue() and __skb_tx_hash(). | |
1987 | * | |
1988 | * bnx2x_setup_tc() takes care of the proper TC mappings so that __skb_tx_hash() | |
1989 | * will return a proper Tx index if TC is enabled (netdev->num_tc > 0). | |
1990 | */ | |
55c11941 | 1991 | static int bnx2x_set_real_num_queues(struct bnx2x *bp, int include_cnic) |
ec6ba945 | 1992 | { |
6383c0b3 | 1993 | int rc, tx, rx; |
ec6ba945 | 1994 | |
65565884 | 1995 | tx = BNX2X_NUM_ETH_QUEUES(bp) * bp->max_cos; |
55c11941 | 1996 | rx = BNX2X_NUM_ETH_QUEUES(bp); |
ec6ba945 | 1997 | |
6383c0b3 | 1998 | /* account for fcoe queue */ |
55c11941 MS |
1999 | if (include_cnic && !NO_FCOE(bp)) { |
2000 | rx++; | |
2001 | tx++; | |
6383c0b3 | 2002 | } |
6383c0b3 AE |
2003 | |
2004 | rc = netif_set_real_num_tx_queues(bp->dev, tx); | |
2005 | if (rc) { | |
2006 | BNX2X_ERR("Failed to set real number of Tx queues: %d\n", rc); | |
2007 | return rc; | |
2008 | } | |
2009 | rc = netif_set_real_num_rx_queues(bp->dev, rx); | |
2010 | if (rc) { | |
2011 | BNX2X_ERR("Failed to set real number of Rx queues: %d\n", rc); | |
2012 | return rc; | |
2013 | } | |
2014 | ||
51c1a580 | 2015 | DP(NETIF_MSG_IFUP, "Setting real num queues to (tx, rx) (%d, %d)\n", |
6383c0b3 AE |
2016 | tx, rx); |
2017 | ||
ec6ba945 VZ |
2018 | return rc; |
2019 | } | |
2020 | ||
1191cb83 | 2021 | static void bnx2x_set_rx_buf_size(struct bnx2x *bp) |
a8c94b91 VZ |
2022 | { |
2023 | int i; | |
2024 | ||
2025 | for_each_queue(bp, i) { | |
2026 | struct bnx2x_fastpath *fp = &bp->fp[i]; | |
e52fcb24 | 2027 | u32 mtu; |
a8c94b91 VZ |
2028 | |
2029 | /* Always use a mini-jumbo MTU for the FCoE L2 ring */ | |
2030 | if (IS_FCOE_IDX(i)) | |
2031 | /* | |
2032 | * Although there are no IP frames expected to arrive to | |
2033 | * this ring we still want to add an | |
2034 | * IP_HEADER_ALIGNMENT_PADDING to prevent a buffer | |
2035 | * overrun attack. | |
2036 | */ | |
e52fcb24 | 2037 | mtu = BNX2X_FCOE_MINI_JUMBO_MTU; |
a8c94b91 | 2038 | else |
e52fcb24 ED |
2039 | mtu = bp->dev->mtu; |
2040 | fp->rx_buf_size = BNX2X_FW_RX_ALIGN_START + | |
2041 | IP_HEADER_ALIGNMENT_PADDING + | |
2042 | ETH_OVREHEAD + | |
2043 | mtu + | |
2044 | BNX2X_FW_RX_ALIGN_END; | |
16a5fd92 | 2045 | /* Note : rx_buf_size doesn't take into account NET_SKB_PAD */ |
d46d132c ED |
2046 | if (fp->rx_buf_size + NET_SKB_PAD <= PAGE_SIZE) |
2047 | fp->rx_frag_size = fp->rx_buf_size + NET_SKB_PAD; | |
2048 | else | |
2049 | fp->rx_frag_size = 0; | |
a8c94b91 VZ |
2050 | } |
2051 | } | |
2052 | ||
60cad4e6 | 2053 | static int bnx2x_init_rss(struct bnx2x *bp) |
619c5cb6 VZ |
2054 | { |
2055 | int i; | |
619c5cb6 VZ |
2056 | u8 num_eth_queues = BNX2X_NUM_ETH_QUEUES(bp); |
2057 | ||
16a5fd92 | 2058 | /* Prepare the initial contents for the indirection table if RSS is |
619c5cb6 VZ |
2059 | * enabled |
2060 | */ | |
5d317c6a MS |
2061 | for (i = 0; i < sizeof(bp->rss_conf_obj.ind_table); i++) |
2062 | bp->rss_conf_obj.ind_table[i] = | |
96305234 DK |
2063 | bp->fp->cl_id + |
2064 | ethtool_rxfh_indir_default(i, num_eth_queues); | |
619c5cb6 VZ |
2065 | |
2066 | /* | |
2067 | * For 57710 and 57711 SEARCHER configuration (rss_keys) is | |
2068 | * per-port, so if explicit configuration is needed , do it only | |
2069 | * for a PMF. | |
2070 | * | |
2071 | * For 57712 and newer on the other hand it's a per-function | |
2072 | * configuration. | |
2073 | */ | |
5d317c6a | 2074 | return bnx2x_config_rss_eth(bp, bp->port.pmf || !CHIP_IS_E1x(bp)); |
619c5cb6 VZ |
2075 | } |
2076 | ||
60cad4e6 AE |
2077 | int bnx2x_rss(struct bnx2x *bp, struct bnx2x_rss_config_obj *rss_obj, |
2078 | bool config_hash, bool enable) | |
619c5cb6 | 2079 | { |
3b603066 | 2080 | struct bnx2x_config_rss_params params = {NULL}; |
619c5cb6 VZ |
2081 | |
2082 | /* Although RSS is meaningless when there is a single HW queue we | |
2083 | * still need it enabled in order to have HW Rx hash generated. | |
2084 | * | |
2085 | * if (!is_eth_multi(bp)) | |
2086 | * bp->multi_mode = ETH_RSS_MODE_DISABLED; | |
2087 | */ | |
2088 | ||
96305234 | 2089 | params.rss_obj = rss_obj; |
619c5cb6 VZ |
2090 | |
2091 | __set_bit(RAMROD_COMP_WAIT, ¶ms.ramrod_flags); | |
2092 | ||
60cad4e6 AE |
2093 | if (enable) { |
2094 | __set_bit(BNX2X_RSS_MODE_REGULAR, ¶ms.rss_flags); | |
2095 | ||
2096 | /* RSS configuration */ | |
2097 | __set_bit(BNX2X_RSS_IPV4, ¶ms.rss_flags); | |
2098 | __set_bit(BNX2X_RSS_IPV4_TCP, ¶ms.rss_flags); | |
2099 | __set_bit(BNX2X_RSS_IPV6, ¶ms.rss_flags); | |
2100 | __set_bit(BNX2X_RSS_IPV6_TCP, ¶ms.rss_flags); | |
2101 | if (rss_obj->udp_rss_v4) | |
2102 | __set_bit(BNX2X_RSS_IPV4_UDP, ¶ms.rss_flags); | |
2103 | if (rss_obj->udp_rss_v6) | |
2104 | __set_bit(BNX2X_RSS_IPV6_UDP, ¶ms.rss_flags); | |
e42780b6 DK |
2105 | |
2106 | if (!CHIP_IS_E1x(bp)) | |
2107 | /* valid only for TUNN_MODE_GRE tunnel mode */ | |
2108 | __set_bit(BNX2X_RSS_GRE_INNER_HDRS, ¶ms.rss_flags); | |
60cad4e6 AE |
2109 | } else { |
2110 | __set_bit(BNX2X_RSS_MODE_DISABLED, ¶ms.rss_flags); | |
2111 | } | |
619c5cb6 | 2112 | |
96305234 DK |
2113 | /* Hash bits */ |
2114 | params.rss_result_mask = MULTI_MASK; | |
619c5cb6 | 2115 | |
5d317c6a | 2116 | memcpy(params.ind_table, rss_obj->ind_table, sizeof(params.ind_table)); |
619c5cb6 | 2117 | |
96305234 DK |
2118 | if (config_hash) { |
2119 | /* RSS keys */ | |
e3ec69ca | 2120 | netdev_rss_key_fill(params.rss_key, T_ETH_RSS_KEY * 4); |
96305234 | 2121 | __set_bit(BNX2X_RSS_SET_SRCH, ¶ms.rss_flags); |
619c5cb6 VZ |
2122 | } |
2123 | ||
60cad4e6 AE |
2124 | if (IS_PF(bp)) |
2125 | return bnx2x_config_rss(bp, ¶ms); | |
2126 | else | |
2127 | return bnx2x_vfpf_config_rss(bp, ¶ms); | |
619c5cb6 VZ |
2128 | } |
2129 | ||
1191cb83 | 2130 | static int bnx2x_init_hw(struct bnx2x *bp, u32 load_code) |
619c5cb6 | 2131 | { |
3b603066 | 2132 | struct bnx2x_func_state_params func_params = {NULL}; |
619c5cb6 VZ |
2133 | |
2134 | /* Prepare parameters for function state transitions */ | |
2135 | __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags); | |
2136 | ||
2137 | func_params.f_obj = &bp->func_obj; | |
2138 | func_params.cmd = BNX2X_F_CMD_HW_INIT; | |
2139 | ||
2140 | func_params.params.hw_init.load_phase = load_code; | |
2141 | ||
2142 | return bnx2x_func_state_change(bp, &func_params); | |
2143 | } | |
2144 | ||
2145 | /* | |
2146 | * Cleans the object that have internal lists without sending | |
16a5fd92 | 2147 | * ramrods. Should be run when interrupts are disabled. |
619c5cb6 | 2148 | */ |
7fa6f340 | 2149 | void bnx2x_squeeze_objects(struct bnx2x *bp) |
619c5cb6 VZ |
2150 | { |
2151 | int rc; | |
2152 | unsigned long ramrod_flags = 0, vlan_mac_flags = 0; | |
3b603066 | 2153 | struct bnx2x_mcast_ramrod_params rparam = {NULL}; |
15192a8c | 2154 | struct bnx2x_vlan_mac_obj *mac_obj = &bp->sp_objs->mac_obj; |
619c5cb6 VZ |
2155 | |
2156 | /***************** Cleanup MACs' object first *************************/ | |
2157 | ||
2158 | /* Wait for completion of requested */ | |
2159 | __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); | |
2160 | /* Perform a dry cleanup */ | |
2161 | __set_bit(RAMROD_DRV_CLR_ONLY, &ramrod_flags); | |
2162 | ||
2163 | /* Clean ETH primary MAC */ | |
2164 | __set_bit(BNX2X_ETH_MAC, &vlan_mac_flags); | |
15192a8c | 2165 | rc = mac_obj->delete_all(bp, &bp->sp_objs->mac_obj, &vlan_mac_flags, |
619c5cb6 VZ |
2166 | &ramrod_flags); |
2167 | if (rc != 0) | |
2168 | BNX2X_ERR("Failed to clean ETH MACs: %d\n", rc); | |
2169 | ||
2170 | /* Cleanup UC list */ | |
2171 | vlan_mac_flags = 0; | |
2172 | __set_bit(BNX2X_UC_LIST_MAC, &vlan_mac_flags); | |
2173 | rc = mac_obj->delete_all(bp, mac_obj, &vlan_mac_flags, | |
2174 | &ramrod_flags); | |
2175 | if (rc != 0) | |
2176 | BNX2X_ERR("Failed to clean UC list MACs: %d\n", rc); | |
2177 | ||
2178 | /***************** Now clean mcast object *****************************/ | |
2179 | rparam.mcast_obj = &bp->mcast_obj; | |
2180 | __set_bit(RAMROD_DRV_CLR_ONLY, &rparam.ramrod_flags); | |
2181 | ||
8b09be5f YM |
2182 | /* Add a DEL command... - Since we're doing a driver cleanup only, |
2183 | * we take a lock surrounding both the initial send and the CONTs, | |
2184 | * as we don't want a true completion to disrupt us in the middle. | |
2185 | */ | |
2186 | netif_addr_lock_bh(bp->dev); | |
619c5cb6 VZ |
2187 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_DEL); |
2188 | if (rc < 0) | |
51c1a580 MS |
2189 | BNX2X_ERR("Failed to add a new DEL command to a multi-cast object: %d\n", |
2190 | rc); | |
619c5cb6 VZ |
2191 | |
2192 | /* ...and wait until all pending commands are cleared */ | |
2193 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); | |
2194 | while (rc != 0) { | |
2195 | if (rc < 0) { | |
2196 | BNX2X_ERR("Failed to clean multi-cast object: %d\n", | |
2197 | rc); | |
8b09be5f | 2198 | netif_addr_unlock_bh(bp->dev); |
619c5cb6 VZ |
2199 | return; |
2200 | } | |
2201 | ||
2202 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); | |
2203 | } | |
8b09be5f | 2204 | netif_addr_unlock_bh(bp->dev); |
619c5cb6 VZ |
2205 | } |
2206 | ||
2207 | #ifndef BNX2X_STOP_ON_ERROR | |
2208 | #define LOAD_ERROR_EXIT(bp, label) \ | |
2209 | do { \ | |
2210 | (bp)->state = BNX2X_STATE_ERROR; \ | |
2211 | goto label; \ | |
2212 | } while (0) | |
55c11941 MS |
2213 | |
2214 | #define LOAD_ERROR_EXIT_CNIC(bp, label) \ | |
2215 | do { \ | |
2216 | bp->cnic_loaded = false; \ | |
2217 | goto label; \ | |
2218 | } while (0) | |
2219 | #else /*BNX2X_STOP_ON_ERROR*/ | |
619c5cb6 VZ |
2220 | #define LOAD_ERROR_EXIT(bp, label) \ |
2221 | do { \ | |
2222 | (bp)->state = BNX2X_STATE_ERROR; \ | |
2223 | (bp)->panic = 1; \ | |
2224 | return -EBUSY; \ | |
2225 | } while (0) | |
55c11941 MS |
2226 | #define LOAD_ERROR_EXIT_CNIC(bp, label) \ |
2227 | do { \ | |
2228 | bp->cnic_loaded = false; \ | |
2229 | (bp)->panic = 1; \ | |
2230 | return -EBUSY; \ | |
2231 | } while (0) | |
2232 | #endif /*BNX2X_STOP_ON_ERROR*/ | |
619c5cb6 | 2233 | |
ad5afc89 AE |
2234 | static void bnx2x_free_fw_stats_mem(struct bnx2x *bp) |
2235 | { | |
2236 | BNX2X_PCI_FREE(bp->fw_stats, bp->fw_stats_mapping, | |
2237 | bp->fw_stats_data_sz + bp->fw_stats_req_sz); | |
2238 | return; | |
2239 | } | |
2240 | ||
2241 | static int bnx2x_alloc_fw_stats_mem(struct bnx2x *bp) | |
452427b0 | 2242 | { |
8db573ba | 2243 | int num_groups, vf_headroom = 0; |
ad5afc89 | 2244 | int is_fcoe_stats = NO_FCOE(bp) ? 0 : 1; |
452427b0 | 2245 | |
ad5afc89 AE |
2246 | /* number of queues for statistics is number of eth queues + FCoE */ |
2247 | u8 num_queue_stats = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe_stats; | |
452427b0 | 2248 | |
ad5afc89 AE |
2249 | /* Total number of FW statistics requests = |
2250 | * 1 for port stats + 1 for PF stats + potential 2 for FCoE (fcoe proper | |
2251 | * and fcoe l2 queue) stats + num of queues (which includes another 1 | |
2252 | * for fcoe l2 queue if applicable) | |
2253 | */ | |
2254 | bp->fw_stats_num = 2 + is_fcoe_stats + num_queue_stats; | |
452427b0 | 2255 | |
8db573ba AE |
2256 | /* vf stats appear in the request list, but their data is allocated by |
2257 | * the VFs themselves. We don't include them in the bp->fw_stats_num as | |
2258 | * it is used to determine where to place the vf stats queries in the | |
2259 | * request struct | |
2260 | */ | |
2261 | if (IS_SRIOV(bp)) | |
6411280a | 2262 | vf_headroom = bnx2x_vf_headroom(bp); |
8db573ba | 2263 | |
ad5afc89 AE |
2264 | /* Request is built from stats_query_header and an array of |
2265 | * stats_query_cmd_group each of which contains | |
2266 | * STATS_QUERY_CMD_COUNT rules. The real number or requests is | |
2267 | * configured in the stats_query_header. | |
2268 | */ | |
2269 | num_groups = | |
8db573ba AE |
2270 | (((bp->fw_stats_num + vf_headroom) / STATS_QUERY_CMD_COUNT) + |
2271 | (((bp->fw_stats_num + vf_headroom) % STATS_QUERY_CMD_COUNT) ? | |
ad5afc89 AE |
2272 | 1 : 0)); |
2273 | ||
8db573ba AE |
2274 | DP(BNX2X_MSG_SP, "stats fw_stats_num %d, vf headroom %d, num_groups %d\n", |
2275 | bp->fw_stats_num, vf_headroom, num_groups); | |
ad5afc89 AE |
2276 | bp->fw_stats_req_sz = sizeof(struct stats_query_header) + |
2277 | num_groups * sizeof(struct stats_query_cmd_group); | |
2278 | ||
2279 | /* Data for statistics requests + stats_counter | |
2280 | * stats_counter holds per-STORM counters that are incremented | |
2281 | * when STORM has finished with the current request. | |
2282 | * memory for FCoE offloaded statistics are counted anyway, | |
2283 | * even if they will not be sent. | |
2284 | * VF stats are not accounted for here as the data of VF stats is stored | |
2285 | * in memory allocated by the VF, not here. | |
2286 | */ | |
2287 | bp->fw_stats_data_sz = sizeof(struct per_port_stats) + | |
2288 | sizeof(struct per_pf_stats) + | |
2289 | sizeof(struct fcoe_statistics_params) + | |
2290 | sizeof(struct per_queue_stats) * num_queue_stats + | |
2291 | sizeof(struct stats_counter); | |
2292 | ||
cd2b0389 JP |
2293 | bp->fw_stats = BNX2X_PCI_ALLOC(&bp->fw_stats_mapping, |
2294 | bp->fw_stats_data_sz + bp->fw_stats_req_sz); | |
2295 | if (!bp->fw_stats) | |
2296 | goto alloc_mem_err; | |
ad5afc89 AE |
2297 | |
2298 | /* Set shortcuts */ | |
2299 | bp->fw_stats_req = (struct bnx2x_fw_stats_req *)bp->fw_stats; | |
2300 | bp->fw_stats_req_mapping = bp->fw_stats_mapping; | |
2301 | bp->fw_stats_data = (struct bnx2x_fw_stats_data *) | |
2302 | ((u8 *)bp->fw_stats + bp->fw_stats_req_sz); | |
2303 | bp->fw_stats_data_mapping = bp->fw_stats_mapping + | |
2304 | bp->fw_stats_req_sz; | |
2305 | ||
6bf07b8e | 2306 | DP(BNX2X_MSG_SP, "statistics request base address set to %x %x\n", |
ad5afc89 AE |
2307 | U64_HI(bp->fw_stats_req_mapping), |
2308 | U64_LO(bp->fw_stats_req_mapping)); | |
6bf07b8e | 2309 | DP(BNX2X_MSG_SP, "statistics data base address set to %x %x\n", |
ad5afc89 AE |
2310 | U64_HI(bp->fw_stats_data_mapping), |
2311 | U64_LO(bp->fw_stats_data_mapping)); | |
2312 | return 0; | |
2313 | ||
2314 | alloc_mem_err: | |
2315 | bnx2x_free_fw_stats_mem(bp); | |
2316 | BNX2X_ERR("Can't allocate FW stats memory\n"); | |
2317 | return -ENOMEM; | |
2318 | } | |
2319 | ||
2320 | /* send load request to mcp and analyze response */ | |
2321 | static int bnx2x_nic_load_request(struct bnx2x *bp, u32 *load_code) | |
2322 | { | |
178135c1 DK |
2323 | u32 param; |
2324 | ||
ad5afc89 AE |
2325 | /* init fw_seq */ |
2326 | bp->fw_seq = | |
2327 | (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) & | |
2328 | DRV_MSG_SEQ_NUMBER_MASK); | |
2329 | BNX2X_DEV_INFO("fw_seq 0x%08x\n", bp->fw_seq); | |
2330 | ||
2331 | /* Get current FW pulse sequence */ | |
2332 | bp->fw_drv_pulse_wr_seq = | |
2333 | (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_pulse_mb) & | |
2334 | DRV_PULSE_SEQ_MASK); | |
2335 | BNX2X_DEV_INFO("drv_pulse 0x%x\n", bp->fw_drv_pulse_wr_seq); | |
2336 | ||
178135c1 DK |
2337 | param = DRV_MSG_CODE_LOAD_REQ_WITH_LFA; |
2338 | ||
2339 | if (IS_MF_SD(bp) && bnx2x_port_after_undi(bp)) | |
2340 | param |= DRV_MSG_CODE_LOAD_REQ_FORCE_LFA; | |
2341 | ||
ad5afc89 | 2342 | /* load request */ |
178135c1 | 2343 | (*load_code) = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ, param); |
ad5afc89 AE |
2344 | |
2345 | /* if mcp fails to respond we must abort */ | |
2346 | if (!(*load_code)) { | |
2347 | BNX2X_ERR("MCP response failure, aborting\n"); | |
2348 | return -EBUSY; | |
2349 | } | |
2350 | ||
2351 | /* If mcp refused (e.g. other port is in diagnostic mode) we | |
2352 | * must abort | |
2353 | */ | |
2354 | if ((*load_code) == FW_MSG_CODE_DRV_LOAD_REFUSED) { | |
2355 | BNX2X_ERR("MCP refused load request, aborting\n"); | |
2356 | return -EBUSY; | |
2357 | } | |
2358 | return 0; | |
2359 | } | |
2360 | ||
2361 | /* check whether another PF has already loaded FW to chip. In | |
2362 | * virtualized environments a pf from another VM may have already | |
2363 | * initialized the device including loading FW | |
2364 | */ | |
91ebb929 | 2365 | int bnx2x_compare_fw_ver(struct bnx2x *bp, u32 load_code, bool print_err) |
ad5afc89 AE |
2366 | { |
2367 | /* is another pf loaded on this engine? */ | |
2368 | if (load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP && | |
2369 | load_code != FW_MSG_CODE_DRV_LOAD_COMMON) { | |
2370 | /* build my FW version dword */ | |
2371 | u32 my_fw = (BCM_5710_FW_MAJOR_VERSION) + | |
2372 | (BCM_5710_FW_MINOR_VERSION << 8) + | |
2373 | (BCM_5710_FW_REVISION_VERSION << 16) + | |
2374 | (BCM_5710_FW_ENGINEERING_VERSION << 24); | |
2375 | ||
2376 | /* read loaded FW from chip */ | |
2377 | u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM); | |
2378 | ||
2379 | DP(BNX2X_MSG_SP, "loaded fw %x, my fw %x\n", | |
2380 | loaded_fw, my_fw); | |
2381 | ||
2382 | /* abort nic load if version mismatch */ | |
2383 | if (my_fw != loaded_fw) { | |
91ebb929 YM |
2384 | if (print_err) |
2385 | BNX2X_ERR("bnx2x with FW %x was already loaded which mismatches my %x FW. Aborting\n", | |
2386 | loaded_fw, my_fw); | |
2387 | else | |
2388 | BNX2X_DEV_INFO("bnx2x with FW %x was already loaded which mismatches my %x FW, possibly due to MF UNDI\n", | |
2389 | loaded_fw, my_fw); | |
ad5afc89 AE |
2390 | return -EBUSY; |
2391 | } | |
2392 | } | |
2393 | return 0; | |
2394 | } | |
2395 | ||
2396 | /* returns the "mcp load_code" according to global load_count array */ | |
2397 | static int bnx2x_nic_load_no_mcp(struct bnx2x *bp, int port) | |
2398 | { | |
2399 | int path = BP_PATH(bp); | |
2400 | ||
2401 | DP(NETIF_MSG_IFUP, "NO MCP - load counts[%d] %d, %d, %d\n", | |
a8f47eb7 | 2402 | path, bnx2x_load_count[path][0], bnx2x_load_count[path][1], |
2403 | bnx2x_load_count[path][2]); | |
2404 | bnx2x_load_count[path][0]++; | |
2405 | bnx2x_load_count[path][1 + port]++; | |
ad5afc89 | 2406 | DP(NETIF_MSG_IFUP, "NO MCP - new load counts[%d] %d, %d, %d\n", |
a8f47eb7 | 2407 | path, bnx2x_load_count[path][0], bnx2x_load_count[path][1], |
2408 | bnx2x_load_count[path][2]); | |
2409 | if (bnx2x_load_count[path][0] == 1) | |
ad5afc89 | 2410 | return FW_MSG_CODE_DRV_LOAD_COMMON; |
a8f47eb7 | 2411 | else if (bnx2x_load_count[path][1 + port] == 1) |
ad5afc89 AE |
2412 | return FW_MSG_CODE_DRV_LOAD_PORT; |
2413 | else | |
2414 | return FW_MSG_CODE_DRV_LOAD_FUNCTION; | |
2415 | } | |
2416 | ||
2417 | /* mark PMF if applicable */ | |
2418 | static void bnx2x_nic_load_pmf(struct bnx2x *bp, u32 load_code) | |
2419 | { | |
2420 | if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || | |
2421 | (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP) || | |
2422 | (load_code == FW_MSG_CODE_DRV_LOAD_PORT)) { | |
2423 | bp->port.pmf = 1; | |
2424 | /* We need the barrier to ensure the ordering between the | |
2425 | * writing to bp->port.pmf here and reading it from the | |
2426 | * bnx2x_periodic_task(). | |
2427 | */ | |
2428 | smp_mb(); | |
2429 | } else { | |
2430 | bp->port.pmf = 0; | |
452427b0 YM |
2431 | } |
2432 | ||
ad5afc89 AE |
2433 | DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf); |
2434 | } | |
2435 | ||
2436 | static void bnx2x_nic_load_afex_dcc(struct bnx2x *bp, int load_code) | |
2437 | { | |
2438 | if (((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || | |
2439 | (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP)) && | |
2440 | (bp->common.shmem2_base)) { | |
2441 | if (SHMEM2_HAS(bp, dcc_support)) | |
2442 | SHMEM2_WR(bp, dcc_support, | |
2443 | (SHMEM_DCC_SUPPORT_DISABLE_ENABLE_PF_TLV | | |
2444 | SHMEM_DCC_SUPPORT_BANDWIDTH_ALLOCATION_TLV)); | |
2445 | if (SHMEM2_HAS(bp, afex_driver_support)) | |
2446 | SHMEM2_WR(bp, afex_driver_support, | |
2447 | SHMEM_AFEX_SUPPORTED_VERSION_ONE); | |
2448 | } | |
2449 | ||
2450 | /* Set AFEX default VLAN tag to an invalid value */ | |
2451 | bp->afex_def_vlan_tag = -1; | |
452427b0 YM |
2452 | } |
2453 | ||
1191cb83 ED |
2454 | /** |
2455 | * bnx2x_bz_fp - zero content of the fastpath structure. | |
2456 | * | |
2457 | * @bp: driver handle | |
2458 | * @index: fastpath index to be zeroed | |
2459 | * | |
2460 | * Makes sure the contents of the bp->fp[index].napi is kept | |
2461 | * intact. | |
2462 | */ | |
2463 | static void bnx2x_bz_fp(struct bnx2x *bp, int index) | |
2464 | { | |
2465 | struct bnx2x_fastpath *fp = &bp->fp[index]; | |
65565884 | 2466 | int cos; |
1191cb83 | 2467 | struct napi_struct orig_napi = fp->napi; |
15192a8c | 2468 | struct bnx2x_agg_info *orig_tpa_info = fp->tpa_info; |
d76a6111 | 2469 | |
1191cb83 | 2470 | /* bzero bnx2x_fastpath contents */ |
c3146eb6 DK |
2471 | if (fp->tpa_info) |
2472 | memset(fp->tpa_info, 0, ETH_MAX_AGGREGATION_QUEUES_E1H_E2 * | |
2473 | sizeof(struct bnx2x_agg_info)); | |
2474 | memset(fp, 0, sizeof(*fp)); | |
1191cb83 ED |
2475 | |
2476 | /* Restore the NAPI object as it has been already initialized */ | |
2477 | fp->napi = orig_napi; | |
15192a8c | 2478 | fp->tpa_info = orig_tpa_info; |
1191cb83 ED |
2479 | fp->bp = bp; |
2480 | fp->index = index; | |
2481 | if (IS_ETH_FP(fp)) | |
2482 | fp->max_cos = bp->max_cos; | |
2483 | else | |
2484 | /* Special queues support only one CoS */ | |
2485 | fp->max_cos = 1; | |
2486 | ||
65565884 | 2487 | /* Init txdata pointers */ |
65565884 MS |
2488 | if (IS_FCOE_FP(fp)) |
2489 | fp->txdata_ptr[0] = &bp->bnx2x_txq[FCOE_TXQ_IDX(bp)]; | |
65565884 MS |
2490 | if (IS_ETH_FP(fp)) |
2491 | for_each_cos_in_tx_queue(fp, cos) | |
2492 | fp->txdata_ptr[cos] = &bp->bnx2x_txq[cos * | |
2493 | BNX2X_NUM_ETH_QUEUES(bp) + index]; | |
2494 | ||
16a5fd92 | 2495 | /* set the tpa flag for each queue. The tpa flag determines the queue |
1191cb83 ED |
2496 | * minimal size so it must be set prior to queue memory allocation |
2497 | */ | |
f8dcb5e3 | 2498 | if (bp->dev->features & NETIF_F_LRO) |
1191cb83 | 2499 | fp->mode = TPA_MODE_LRO; |
f8dcb5e3 | 2500 | else if (bp->dev->features & NETIF_F_GRO && |
7e6b4d44 | 2501 | bnx2x_mtu_allows_gro(bp->dev->mtu)) |
1191cb83 | 2502 | fp->mode = TPA_MODE_GRO; |
7e6b4d44 MS |
2503 | else |
2504 | fp->mode = TPA_MODE_DISABLED; | |
1191cb83 | 2505 | |
22a8f237 MS |
2506 | /* We don't want TPA if it's disabled in bp |
2507 | * or if this is an FCoE L2 ring. | |
2508 | */ | |
2509 | if (bp->disable_tpa || IS_FCOE_FP(fp)) | |
7e6b4d44 | 2510 | fp->mode = TPA_MODE_DISABLED; |
55c11941 MS |
2511 | } |
2512 | ||
2513 | int bnx2x_load_cnic(struct bnx2x *bp) | |
2514 | { | |
2515 | int i, rc, port = BP_PORT(bp); | |
2516 | ||
2517 | DP(NETIF_MSG_IFUP, "Starting CNIC-related load\n"); | |
2518 | ||
2519 | mutex_init(&bp->cnic_mutex); | |
2520 | ||
ad5afc89 AE |
2521 | if (IS_PF(bp)) { |
2522 | rc = bnx2x_alloc_mem_cnic(bp); | |
2523 | if (rc) { | |
2524 | BNX2X_ERR("Unable to allocate bp memory for cnic\n"); | |
2525 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); | |
2526 | } | |
55c11941 MS |
2527 | } |
2528 | ||
2529 | rc = bnx2x_alloc_fp_mem_cnic(bp); | |
2530 | if (rc) { | |
2531 | BNX2X_ERR("Unable to allocate memory for cnic fps\n"); | |
2532 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); | |
2533 | } | |
2534 | ||
2535 | /* Update the number of queues with the cnic queues */ | |
2536 | rc = bnx2x_set_real_num_queues(bp, 1); | |
2537 | if (rc) { | |
2538 | BNX2X_ERR("Unable to set real_num_queues including cnic\n"); | |
2539 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); | |
2540 | } | |
2541 | ||
2542 | /* Add all CNIC NAPI objects */ | |
2543 | bnx2x_add_all_napi_cnic(bp); | |
2544 | DP(NETIF_MSG_IFUP, "cnic napi added\n"); | |
2545 | bnx2x_napi_enable_cnic(bp); | |
2546 | ||
2547 | rc = bnx2x_init_hw_func_cnic(bp); | |
2548 | if (rc) | |
2549 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic1); | |
2550 | ||
2551 | bnx2x_nic_init_cnic(bp); | |
2552 | ||
ad5afc89 AE |
2553 | if (IS_PF(bp)) { |
2554 | /* Enable Timer scan */ | |
2555 | REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 1); | |
2556 | ||
2557 | /* setup cnic queues */ | |
2558 | for_each_cnic_queue(bp, i) { | |
2559 | rc = bnx2x_setup_queue(bp, &bp->fp[i], 0); | |
2560 | if (rc) { | |
2561 | BNX2X_ERR("Queue setup failed\n"); | |
2562 | LOAD_ERROR_EXIT(bp, load_error_cnic2); | |
2563 | } | |
55c11941 MS |
2564 | } |
2565 | } | |
2566 | ||
2567 | /* Initialize Rx filter. */ | |
8b09be5f | 2568 | bnx2x_set_rx_mode_inner(bp); |
55c11941 MS |
2569 | |
2570 | /* re-read iscsi info */ | |
2571 | bnx2x_get_iscsi_info(bp); | |
2572 | bnx2x_setup_cnic_irq_info(bp); | |
2573 | bnx2x_setup_cnic_info(bp); | |
2574 | bp->cnic_loaded = true; | |
2575 | if (bp->state == BNX2X_STATE_OPEN) | |
2576 | bnx2x_cnic_notify(bp, CNIC_CTL_START_CMD); | |
2577 | ||
55c11941 MS |
2578 | DP(NETIF_MSG_IFUP, "Ending successfully CNIC-related load\n"); |
2579 | ||
2580 | return 0; | |
2581 | ||
2582 | #ifndef BNX2X_STOP_ON_ERROR | |
2583 | load_error_cnic2: | |
2584 | /* Disable Timer scan */ | |
2585 | REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 0); | |
2586 | ||
2587 | load_error_cnic1: | |
2588 | bnx2x_napi_disable_cnic(bp); | |
2589 | /* Update the number of queues without the cnic queues */ | |
d9d81862 | 2590 | if (bnx2x_set_real_num_queues(bp, 0)) |
55c11941 MS |
2591 | BNX2X_ERR("Unable to set real_num_queues not including cnic\n"); |
2592 | load_error_cnic0: | |
2593 | BNX2X_ERR("CNIC-related load failed\n"); | |
2594 | bnx2x_free_fp_mem_cnic(bp); | |
2595 | bnx2x_free_mem_cnic(bp); | |
2596 | return rc; | |
2597 | #endif /* ! BNX2X_STOP_ON_ERROR */ | |
1191cb83 ED |
2598 | } |
2599 | ||
9f6c9258 DK |
2600 | /* must be called with rtnl_lock */ |
2601 | int bnx2x_nic_load(struct bnx2x *bp, int load_mode) | |
2602 | { | |
619c5cb6 | 2603 | int port = BP_PORT(bp); |
ad5afc89 | 2604 | int i, rc = 0, load_code = 0; |
9f6c9258 | 2605 | |
55c11941 MS |
2606 | DP(NETIF_MSG_IFUP, "Starting NIC load\n"); |
2607 | DP(NETIF_MSG_IFUP, | |
2608 | "CNIC is %s\n", CNIC_ENABLED(bp) ? "enabled" : "disabled"); | |
2609 | ||
9f6c9258 | 2610 | #ifdef BNX2X_STOP_ON_ERROR |
51c1a580 MS |
2611 | if (unlikely(bp->panic)) { |
2612 | BNX2X_ERR("Can't load NIC when there is panic\n"); | |
9f6c9258 | 2613 | return -EPERM; |
51c1a580 | 2614 | } |
9f6c9258 DK |
2615 | #endif |
2616 | ||
2617 | bp->state = BNX2X_STATE_OPENING_WAIT4_LOAD; | |
2618 | ||
16a5fd92 | 2619 | /* zero the structure w/o any lock, before SP handler is initialized */ |
2ae17f66 VZ |
2620 | memset(&bp->last_reported_link, 0, sizeof(bp->last_reported_link)); |
2621 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, | |
2622 | &bp->last_reported_link.link_report_flags); | |
2ae17f66 | 2623 | |
ad5afc89 AE |
2624 | if (IS_PF(bp)) |
2625 | /* must be called before memory allocation and HW init */ | |
2626 | bnx2x_ilt_set_info(bp); | |
523224a3 | 2627 | |
6383c0b3 AE |
2628 | /* |
2629 | * Zero fastpath structures preserving invariants like napi, which are | |
2630 | * allocated only once, fp index, max_cos, bp pointer. | |
7e6b4d44 | 2631 | * Also set fp->mode and txdata_ptr. |
b3b83c3f | 2632 | */ |
51c1a580 | 2633 | DP(NETIF_MSG_IFUP, "num queues: %d", bp->num_queues); |
b3b83c3f DK |
2634 | for_each_queue(bp, i) |
2635 | bnx2x_bz_fp(bp, i); | |
55c11941 MS |
2636 | memset(bp->bnx2x_txq, 0, (BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS + |
2637 | bp->num_cnic_queues) * | |
2638 | sizeof(struct bnx2x_fp_txdata)); | |
b3b83c3f | 2639 | |
55c11941 | 2640 | bp->fcoe_init = false; |
6383c0b3 | 2641 | |
a8c94b91 VZ |
2642 | /* Set the receive queues buffer size */ |
2643 | bnx2x_set_rx_buf_size(bp); | |
2644 | ||
ad5afc89 AE |
2645 | if (IS_PF(bp)) { |
2646 | rc = bnx2x_alloc_mem(bp); | |
2647 | if (rc) { | |
2648 | BNX2X_ERR("Unable to allocate bp memory\n"); | |
2649 | return rc; | |
2650 | } | |
2651 | } | |
2652 | ||
ad5afc89 AE |
2653 | /* need to be done after alloc mem, since it's self adjusting to amount |
2654 | * of memory available for RSS queues | |
2655 | */ | |
2656 | rc = bnx2x_alloc_fp_mem(bp); | |
2657 | if (rc) { | |
2658 | BNX2X_ERR("Unable to allocate memory for fps\n"); | |
2659 | LOAD_ERROR_EXIT(bp, load_error0); | |
2660 | } | |
d6214d7a | 2661 | |
e3ed4eae DK |
2662 | /* Allocated memory for FW statistics */ |
2663 | if (bnx2x_alloc_fw_stats_mem(bp)) | |
2664 | LOAD_ERROR_EXIT(bp, load_error0); | |
2665 | ||
8d9ac297 AE |
2666 | /* request pf to initialize status blocks */ |
2667 | if (IS_VF(bp)) { | |
2668 | rc = bnx2x_vfpf_init(bp); | |
2669 | if (rc) | |
2670 | LOAD_ERROR_EXIT(bp, load_error0); | |
2671 | } | |
2672 | ||
b3b83c3f DK |
2673 | /* As long as bnx2x_alloc_mem() may possibly update |
2674 | * bp->num_queues, bnx2x_set_real_num_queues() should always | |
55c11941 | 2675 | * come after it. At this stage cnic queues are not counted. |
b3b83c3f | 2676 | */ |
55c11941 | 2677 | rc = bnx2x_set_real_num_queues(bp, 0); |
d6214d7a | 2678 | if (rc) { |
ec6ba945 | 2679 | BNX2X_ERR("Unable to set real_num_queues\n"); |
619c5cb6 | 2680 | LOAD_ERROR_EXIT(bp, load_error0); |
9f6c9258 DK |
2681 | } |
2682 | ||
6383c0b3 | 2683 | /* configure multi cos mappings in kernel. |
16a5fd92 YM |
2684 | * this configuration may be overridden by a multi class queue |
2685 | * discipline or by a dcbx negotiation result. | |
6383c0b3 AE |
2686 | */ |
2687 | bnx2x_setup_tc(bp->dev, bp->max_cos); | |
2688 | ||
26614ba5 MS |
2689 | /* Add all NAPI objects */ |
2690 | bnx2x_add_all_napi(bp); | |
55c11941 | 2691 | DP(NETIF_MSG_IFUP, "napi added\n"); |
9f6c9258 DK |
2692 | bnx2x_napi_enable(bp); |
2693 | ||
ad5afc89 AE |
2694 | if (IS_PF(bp)) { |
2695 | /* set pf load just before approaching the MCP */ | |
2696 | bnx2x_set_pf_load(bp); | |
2697 | ||
2698 | /* if mcp exists send load request and analyze response */ | |
2699 | if (!BP_NOMCP(bp)) { | |
2700 | /* attempt to load pf */ | |
2701 | rc = bnx2x_nic_load_request(bp, &load_code); | |
2702 | if (rc) | |
2703 | LOAD_ERROR_EXIT(bp, load_error1); | |
2704 | ||
2705 | /* what did mcp say? */ | |
91ebb929 | 2706 | rc = bnx2x_compare_fw_ver(bp, load_code, true); |
ad5afc89 AE |
2707 | if (rc) { |
2708 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); | |
d1e2d966 AE |
2709 | LOAD_ERROR_EXIT(bp, load_error2); |
2710 | } | |
ad5afc89 AE |
2711 | } else { |
2712 | load_code = bnx2x_nic_load_no_mcp(bp, port); | |
d1e2d966 | 2713 | } |
9f6c9258 | 2714 | |
ad5afc89 AE |
2715 | /* mark pmf if applicable */ |
2716 | bnx2x_nic_load_pmf(bp, load_code); | |
9f6c9258 | 2717 | |
ad5afc89 AE |
2718 | /* Init Function state controlling object */ |
2719 | bnx2x__init_func_obj(bp); | |
6383c0b3 | 2720 | |
ad5afc89 AE |
2721 | /* Initialize HW */ |
2722 | rc = bnx2x_init_hw(bp, load_code); | |
2723 | if (rc) { | |
2724 | BNX2X_ERR("HW init failed, aborting\n"); | |
2725 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); | |
2726 | LOAD_ERROR_EXIT(bp, load_error2); | |
2727 | } | |
9f6c9258 DK |
2728 | } |
2729 | ||
ecf01c22 YM |
2730 | bnx2x_pre_irq_nic_init(bp); |
2731 | ||
d6214d7a DK |
2732 | /* Connect to IRQs */ |
2733 | rc = bnx2x_setup_irqs(bp); | |
523224a3 | 2734 | if (rc) { |
ad5afc89 AE |
2735 | BNX2X_ERR("setup irqs failed\n"); |
2736 | if (IS_PF(bp)) | |
2737 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); | |
619c5cb6 | 2738 | LOAD_ERROR_EXIT(bp, load_error2); |
523224a3 DK |
2739 | } |
2740 | ||
619c5cb6 | 2741 | /* Init per-function objects */ |
ad5afc89 | 2742 | if (IS_PF(bp)) { |
ecf01c22 YM |
2743 | /* Setup NIC internals and enable interrupts */ |
2744 | bnx2x_post_irq_nic_init(bp, load_code); | |
2745 | ||
ad5afc89 | 2746 | bnx2x_init_bp_objs(bp); |
b56e9670 | 2747 | bnx2x_iov_nic_init(bp); |
a3348722 | 2748 | |
ad5afc89 AE |
2749 | /* Set AFEX default VLAN tag to an invalid value */ |
2750 | bp->afex_def_vlan_tag = -1; | |
2751 | bnx2x_nic_load_afex_dcc(bp, load_code); | |
2752 | bp->state = BNX2X_STATE_OPENING_WAIT4_PORT; | |
2753 | rc = bnx2x_func_start(bp); | |
2754 | if (rc) { | |
2755 | BNX2X_ERR("Function start failed!\n"); | |
2756 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); | |
9f6c9258 | 2757 | |
619c5cb6 | 2758 | LOAD_ERROR_EXIT(bp, load_error3); |
9f6c9258 | 2759 | } |
9f6c9258 | 2760 | |
ad5afc89 AE |
2761 | /* Send LOAD_DONE command to MCP */ |
2762 | if (!BP_NOMCP(bp)) { | |
2763 | load_code = bnx2x_fw_command(bp, | |
2764 | DRV_MSG_CODE_LOAD_DONE, 0); | |
2765 | if (!load_code) { | |
2766 | BNX2X_ERR("MCP response failure, aborting\n"); | |
2767 | rc = -EBUSY; | |
2768 | LOAD_ERROR_EXIT(bp, load_error3); | |
2769 | } | |
2770 | } | |
9f6c9258 | 2771 | |
0c14e5ce AE |
2772 | /* initialize FW coalescing state machines in RAM */ |
2773 | bnx2x_update_coalesce(bp); | |
60cad4e6 | 2774 | } |
0c14e5ce | 2775 | |
60cad4e6 AE |
2776 | /* setup the leading queue */ |
2777 | rc = bnx2x_setup_leading(bp); | |
2778 | if (rc) { | |
2779 | BNX2X_ERR("Setup leading failed!\n"); | |
2780 | LOAD_ERROR_EXIT(bp, load_error3); | |
2781 | } | |
ad5afc89 | 2782 | |
60cad4e6 AE |
2783 | /* set up the rest of the queues */ |
2784 | for_each_nondefault_eth_queue(bp, i) { | |
2785 | if (IS_PF(bp)) | |
2786 | rc = bnx2x_setup_queue(bp, &bp->fp[i], false); | |
2787 | else /* VF */ | |
2788 | rc = bnx2x_vfpf_setup_q(bp, &bp->fp[i], false); | |
ad5afc89 | 2789 | if (rc) { |
60cad4e6 | 2790 | BNX2X_ERR("Queue %d setup failed\n", i); |
ad5afc89 AE |
2791 | LOAD_ERROR_EXIT(bp, load_error3); |
2792 | } | |
60cad4e6 | 2793 | } |
8d9ac297 | 2794 | |
60cad4e6 AE |
2795 | /* setup rss */ |
2796 | rc = bnx2x_init_rss(bp); | |
2797 | if (rc) { | |
2798 | BNX2X_ERR("PF RSS init failed\n"); | |
2799 | LOAD_ERROR_EXIT(bp, load_error3); | |
51c1a580 | 2800 | } |
619c5cb6 | 2801 | |
523224a3 DK |
2802 | /* Now when Clients are configured we are ready to work */ |
2803 | bp->state = BNX2X_STATE_OPEN; | |
2804 | ||
619c5cb6 | 2805 | /* Configure a ucast MAC */ |
ad5afc89 AE |
2806 | if (IS_PF(bp)) |
2807 | rc = bnx2x_set_eth_mac(bp, true); | |
8d9ac297 | 2808 | else /* vf */ |
f8f4f61a DK |
2809 | rc = bnx2x_vfpf_config_mac(bp, bp->dev->dev_addr, bp->fp->index, |
2810 | true); | |
51c1a580 MS |
2811 | if (rc) { |
2812 | BNX2X_ERR("Setting Ethernet MAC failed\n"); | |
55c11941 | 2813 | LOAD_ERROR_EXIT(bp, load_error3); |
51c1a580 | 2814 | } |
6e30dd4e | 2815 | |
ad5afc89 | 2816 | if (IS_PF(bp) && bp->pending_max) { |
e3835b99 DK |
2817 | bnx2x_update_max_mf_config(bp, bp->pending_max); |
2818 | bp->pending_max = 0; | |
2819 | } | |
2820 | ||
ad5afc89 AE |
2821 | if (bp->port.pmf) { |
2822 | rc = bnx2x_initial_phy_init(bp, load_mode); | |
2823 | if (rc) | |
2824 | LOAD_ERROR_EXIT(bp, load_error3); | |
2825 | } | |
c63da990 | 2826 | bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_BOOT_FROM_SAN; |
9f6c9258 | 2827 | |
619c5cb6 VZ |
2828 | /* Start fast path */ |
2829 | ||
2830 | /* Initialize Rx filter. */ | |
8b09be5f | 2831 | bnx2x_set_rx_mode_inner(bp); |
6e30dd4e | 2832 | |
eeed018c MK |
2833 | if (bp->flags & PTP_SUPPORTED) { |
2834 | bnx2x_init_ptp(bp); | |
2835 | bnx2x_configure_ptp_filters(bp); | |
2836 | } | |
2837 | /* Start Tx */ | |
9f6c9258 DK |
2838 | switch (load_mode) { |
2839 | case LOAD_NORMAL: | |
16a5fd92 | 2840 | /* Tx queue should be only re-enabled */ |
523224a3 | 2841 | netif_tx_wake_all_queues(bp->dev); |
9f6c9258 DK |
2842 | break; |
2843 | ||
2844 | case LOAD_OPEN: | |
2845 | netif_tx_start_all_queues(bp->dev); | |
4e857c58 | 2846 | smp_mb__after_atomic(); |
9f6c9258 DK |
2847 | break; |
2848 | ||
2849 | case LOAD_DIAG: | |
8970b2e4 | 2850 | case LOAD_LOOPBACK_EXT: |
9f6c9258 DK |
2851 | bp->state = BNX2X_STATE_DIAG; |
2852 | break; | |
2853 | ||
2854 | default: | |
2855 | break; | |
2856 | } | |
2857 | ||
00253a8c | 2858 | if (bp->port.pmf) |
4c704899 | 2859 | bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_PORT_MASK, 0); |
00253a8c | 2860 | else |
9f6c9258 DK |
2861 | bnx2x__link_status_update(bp); |
2862 | ||
2863 | /* start the timer */ | |
2864 | mod_timer(&bp->timer, jiffies + bp->current_interval); | |
2865 | ||
55c11941 MS |
2866 | if (CNIC_ENABLED(bp)) |
2867 | bnx2x_load_cnic(bp); | |
9f6c9258 | 2868 | |
42f8277f YM |
2869 | if (IS_PF(bp)) |
2870 | bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_GET_DRV_VERSION, 0); | |
2871 | ||
ad5afc89 AE |
2872 | if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) { |
2873 | /* mark driver is loaded in shmem2 */ | |
9ce392d4 YM |
2874 | u32 val; |
2875 | val = SHMEM2_RD(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)]); | |
2876 | SHMEM2_WR(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)], | |
2877 | val | DRV_FLAGS_CAPABILITIES_LOADED_SUPPORTED | | |
2878 | DRV_FLAGS_CAPABILITIES_LOADED_L2); | |
2879 | } | |
2880 | ||
619c5cb6 | 2881 | /* Wait for all pending SP commands to complete */ |
ad5afc89 | 2882 | if (IS_PF(bp) && !bnx2x_wait_sp_comp(bp, ~0x0UL)) { |
619c5cb6 | 2883 | BNX2X_ERR("Timeout waiting for SP elements to complete\n"); |
5d07d868 | 2884 | bnx2x_nic_unload(bp, UNLOAD_CLOSE, false); |
619c5cb6 VZ |
2885 | return -EBUSY; |
2886 | } | |
6891dd25 | 2887 | |
9876879f BW |
2888 | /* If PMF - send ADMIN DCBX msg to MFW to initiate DCBX FSM */ |
2889 | if (bp->port.pmf && (bp->state != BNX2X_STATE_DIAG)) | |
2890 | bnx2x_dcbx_init(bp, false); | |
2891 | ||
55c11941 MS |
2892 | DP(NETIF_MSG_IFUP, "Ending successfully NIC load\n"); |
2893 | ||
9f6c9258 DK |
2894 | return 0; |
2895 | ||
619c5cb6 | 2896 | #ifndef BNX2X_STOP_ON_ERROR |
9f6c9258 | 2897 | load_error3: |
ad5afc89 AE |
2898 | if (IS_PF(bp)) { |
2899 | bnx2x_int_disable_sync(bp, 1); | |
d6214d7a | 2900 | |
ad5afc89 AE |
2901 | /* Clean queueable objects */ |
2902 | bnx2x_squeeze_objects(bp); | |
2903 | } | |
619c5cb6 | 2904 | |
9f6c9258 DK |
2905 | /* Free SKBs, SGEs, TPA pool and driver internals */ |
2906 | bnx2x_free_skbs(bp); | |
ec6ba945 | 2907 | for_each_rx_queue(bp, i) |
9f6c9258 | 2908 | bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE); |
d6214d7a | 2909 | |
9f6c9258 | 2910 | /* Release IRQs */ |
d6214d7a DK |
2911 | bnx2x_free_irq(bp); |
2912 | load_error2: | |
ad5afc89 | 2913 | if (IS_PF(bp) && !BP_NOMCP(bp)) { |
d6214d7a DK |
2914 | bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP, 0); |
2915 | bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0); | |
2916 | } | |
2917 | ||
2918 | bp->port.pmf = 0; | |
9f6c9258 DK |
2919 | load_error1: |
2920 | bnx2x_napi_disable(bp); | |
722c6f58 | 2921 | bnx2x_del_all_napi(bp); |
ad5afc89 | 2922 | |
889b9af3 | 2923 | /* clear pf_load status, as it was already set */ |
ad5afc89 AE |
2924 | if (IS_PF(bp)) |
2925 | bnx2x_clear_pf_load(bp); | |
d6214d7a | 2926 | load_error0: |
ad5afc89 | 2927 | bnx2x_free_fw_stats_mem(bp); |
e3ed4eae | 2928 | bnx2x_free_fp_mem(bp); |
9f6c9258 DK |
2929 | bnx2x_free_mem(bp); |
2930 | ||
2931 | return rc; | |
619c5cb6 | 2932 | #endif /* ! BNX2X_STOP_ON_ERROR */ |
9f6c9258 DK |
2933 | } |
2934 | ||
7fa6f340 | 2935 | int bnx2x_drain_tx_queues(struct bnx2x *bp) |
ad5afc89 AE |
2936 | { |
2937 | u8 rc = 0, cos, i; | |
2938 | ||
2939 | /* Wait until tx fastpath tasks complete */ | |
2940 | for_each_tx_queue(bp, i) { | |
2941 | struct bnx2x_fastpath *fp = &bp->fp[i]; | |
2942 | ||
2943 | for_each_cos_in_tx_queue(fp, cos) | |
2944 | rc = bnx2x_clean_tx_queue(bp, fp->txdata_ptr[cos]); | |
2945 | if (rc) | |
2946 | return rc; | |
2947 | } | |
2948 | return 0; | |
2949 | } | |
2950 | ||
9f6c9258 | 2951 | /* must be called with rtnl_lock */ |
5d07d868 | 2952 | int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link) |
9f6c9258 DK |
2953 | { |
2954 | int i; | |
c9ee9206 VZ |
2955 | bool global = false; |
2956 | ||
55c11941 MS |
2957 | DP(NETIF_MSG_IFUP, "Starting NIC unload\n"); |
2958 | ||
9ce392d4 | 2959 | /* mark driver is unloaded in shmem2 */ |
ad5afc89 | 2960 | if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) { |
9ce392d4 YM |
2961 | u32 val; |
2962 | val = SHMEM2_RD(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)]); | |
2963 | SHMEM2_WR(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)], | |
2964 | val & ~DRV_FLAGS_CAPABILITIES_LOADED_L2); | |
2965 | } | |
2966 | ||
80bfe5cc | 2967 | if (IS_PF(bp) && bp->recovery_state != BNX2X_RECOVERY_DONE && |
ad5afc89 AE |
2968 | (bp->state == BNX2X_STATE_CLOSED || |
2969 | bp->state == BNX2X_STATE_ERROR)) { | |
c9ee9206 VZ |
2970 | /* We can get here if the driver has been unloaded |
2971 | * during parity error recovery and is either waiting for a | |
2972 | * leader to complete or for other functions to unload and | |
2973 | * then ifdown has been issued. In this case we want to | |
2974 | * unload and let other functions to complete a recovery | |
2975 | * process. | |
2976 | */ | |
9f6c9258 DK |
2977 | bp->recovery_state = BNX2X_RECOVERY_DONE; |
2978 | bp->is_leader = 0; | |
c9ee9206 VZ |
2979 | bnx2x_release_leader_lock(bp); |
2980 | smp_mb(); | |
2981 | ||
51c1a580 MS |
2982 | DP(NETIF_MSG_IFDOWN, "Releasing a leadership...\n"); |
2983 | BNX2X_ERR("Can't unload in closed or error state\n"); | |
9f6c9258 DK |
2984 | return -EINVAL; |
2985 | } | |
2986 | ||
80bfe5cc | 2987 | /* Nothing to do during unload if previous bnx2x_nic_load() |
16a5fd92 | 2988 | * have not completed successfully - all resources are released. |
80bfe5cc YM |
2989 | * |
2990 | * we can get here only after unsuccessful ndo_* callback, during which | |
2991 | * dev->IFF_UP flag is still on. | |
2992 | */ | |
2993 | if (bp->state == BNX2X_STATE_CLOSED || bp->state == BNX2X_STATE_ERROR) | |
2994 | return 0; | |
2995 | ||
2996 | /* It's important to set the bp->state to the value different from | |
87b7ba3d VZ |
2997 | * BNX2X_STATE_OPEN and only then stop the Tx. Otherwise bnx2x_tx_int() |
2998 | * may restart the Tx from the NAPI context (see bnx2x_tx_int()). | |
2999 | */ | |
3000 | bp->state = BNX2X_STATE_CLOSING_WAIT4_HALT; | |
3001 | smp_mb(); | |
3002 | ||
78c3bcc5 AE |
3003 | /* indicate to VFs that the PF is going down */ |
3004 | bnx2x_iov_channel_down(bp); | |
3005 | ||
55c11941 MS |
3006 | if (CNIC_LOADED(bp)) |
3007 | bnx2x_cnic_notify(bp, CNIC_CTL_STOP_CMD); | |
3008 | ||
9505ee37 VZ |
3009 | /* Stop Tx */ |
3010 | bnx2x_tx_disable(bp); | |
65565884 | 3011 | netdev_reset_tc(bp->dev); |
9505ee37 | 3012 | |
9f6c9258 | 3013 | bp->rx_mode = BNX2X_RX_MODE_NONE; |
9f6c9258 | 3014 | |
9f6c9258 | 3015 | del_timer_sync(&bp->timer); |
f85582f8 | 3016 | |
ad5afc89 AE |
3017 | if (IS_PF(bp)) { |
3018 | /* Set ALWAYS_ALIVE bit in shmem */ | |
3019 | bp->fw_drv_pulse_wr_seq |= DRV_PULSE_ALWAYS_ALIVE; | |
3020 | bnx2x_drv_pulse(bp); | |
3021 | bnx2x_stats_handle(bp, STATS_EVENT_STOP); | |
3022 | bnx2x_save_statistics(bp); | |
3023 | } | |
9f6c9258 | 3024 | |
ad5afc89 AE |
3025 | /* wait till consumers catch up with producers in all queues */ |
3026 | bnx2x_drain_tx_queues(bp); | |
9f6c9258 | 3027 | |
9b176b6b AE |
3028 | /* if VF indicate to PF this function is going down (PF will delete sp |
3029 | * elements and clear initializations | |
3030 | */ | |
3031 | if (IS_VF(bp)) | |
3032 | bnx2x_vfpf_close_vf(bp); | |
3033 | else if (unload_mode != UNLOAD_RECOVERY) | |
3034 | /* if this is a normal/close unload need to clean up chip*/ | |
5d07d868 | 3035 | bnx2x_chip_cleanup(bp, unload_mode, keep_link); |
523224a3 | 3036 | else { |
c9ee9206 VZ |
3037 | /* Send the UNLOAD_REQUEST to the MCP */ |
3038 | bnx2x_send_unload_req(bp, unload_mode); | |
3039 | ||
16a5fd92 | 3040 | /* Prevent transactions to host from the functions on the |
c9ee9206 | 3041 | * engine that doesn't reset global blocks in case of global |
16a5fd92 | 3042 | * attention once global blocks are reset and gates are opened |
c9ee9206 VZ |
3043 | * (the engine which leader will perform the recovery |
3044 | * last). | |
3045 | */ | |
3046 | if (!CHIP_IS_E1x(bp)) | |
3047 | bnx2x_pf_disable(bp); | |
3048 | ||
3049 | /* Disable HW interrupts, NAPI */ | |
523224a3 | 3050 | bnx2x_netif_stop(bp, 1); |
26614ba5 MS |
3051 | /* Delete all NAPI objects */ |
3052 | bnx2x_del_all_napi(bp); | |
55c11941 MS |
3053 | if (CNIC_LOADED(bp)) |
3054 | bnx2x_del_all_napi_cnic(bp); | |
523224a3 | 3055 | /* Release IRQs */ |
d6214d7a | 3056 | bnx2x_free_irq(bp); |
c9ee9206 VZ |
3057 | |
3058 | /* Report UNLOAD_DONE to MCP */ | |
5d07d868 | 3059 | bnx2x_send_unload_done(bp, false); |
523224a3 | 3060 | } |
9f6c9258 | 3061 | |
619c5cb6 | 3062 | /* |
16a5fd92 | 3063 | * At this stage no more interrupts will arrive so we may safely clean |
619c5cb6 VZ |
3064 | * the queueable objects here in case they failed to get cleaned so far. |
3065 | */ | |
ad5afc89 AE |
3066 | if (IS_PF(bp)) |
3067 | bnx2x_squeeze_objects(bp); | |
619c5cb6 | 3068 | |
79616895 VZ |
3069 | /* There should be no more pending SP commands at this stage */ |
3070 | bp->sp_state = 0; | |
3071 | ||
9f6c9258 DK |
3072 | bp->port.pmf = 0; |
3073 | ||
a0d307b2 DK |
3074 | /* clear pending work in rtnl task */ |
3075 | bp->sp_rtnl_state = 0; | |
3076 | smp_mb(); | |
3077 | ||
9f6c9258 DK |
3078 | /* Free SKBs, SGEs, TPA pool and driver internals */ |
3079 | bnx2x_free_skbs(bp); | |
55c11941 MS |
3080 | if (CNIC_LOADED(bp)) |
3081 | bnx2x_free_skbs_cnic(bp); | |
ec6ba945 | 3082 | for_each_rx_queue(bp, i) |
9f6c9258 | 3083 | bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE); |
d6214d7a | 3084 | |
ad5afc89 AE |
3085 | bnx2x_free_fp_mem(bp); |
3086 | if (CNIC_LOADED(bp)) | |
55c11941 | 3087 | bnx2x_free_fp_mem_cnic(bp); |
9f6c9258 | 3088 | |
ad5afc89 | 3089 | if (IS_PF(bp)) { |
ad5afc89 AE |
3090 | if (CNIC_LOADED(bp)) |
3091 | bnx2x_free_mem_cnic(bp); | |
3092 | } | |
b4cddbd6 AE |
3093 | bnx2x_free_mem(bp); |
3094 | ||
9f6c9258 | 3095 | bp->state = BNX2X_STATE_CLOSED; |
55c11941 | 3096 | bp->cnic_loaded = false; |
9f6c9258 | 3097 | |
42f8277f YM |
3098 | /* Clear driver version indication in shmem */ |
3099 | if (IS_PF(bp)) | |
3100 | bnx2x_update_mng_version(bp); | |
3101 | ||
c9ee9206 VZ |
3102 | /* Check if there are pending parity attentions. If there are - set |
3103 | * RECOVERY_IN_PROGRESS. | |
3104 | */ | |
ad5afc89 | 3105 | if (IS_PF(bp) && bnx2x_chk_parity_attn(bp, &global, false)) { |
c9ee9206 VZ |
3106 | bnx2x_set_reset_in_progress(bp); |
3107 | ||
3108 | /* Set RESET_IS_GLOBAL if needed */ | |
3109 | if (global) | |
3110 | bnx2x_set_reset_global(bp); | |
3111 | } | |
3112 | ||
9f6c9258 DK |
3113 | /* The last driver must disable a "close the gate" if there is no |
3114 | * parity attention or "process kill" pending. | |
3115 | */ | |
ad5afc89 AE |
3116 | if (IS_PF(bp) && |
3117 | !bnx2x_clear_pf_load(bp) && | |
3118 | bnx2x_reset_is_done(bp, BP_PATH(bp))) | |
9f6c9258 DK |
3119 | bnx2x_disable_close_the_gate(bp); |
3120 | ||
55c11941 MS |
3121 | DP(NETIF_MSG_IFUP, "Ending NIC unload\n"); |
3122 | ||
9f6c9258 DK |
3123 | return 0; |
3124 | } | |
f85582f8 | 3125 | |
9f6c9258 DK |
3126 | int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state) |
3127 | { | |
3128 | u16 pmcsr; | |
3129 | ||
adf5f6a1 | 3130 | /* If there is no power capability, silently succeed */ |
29ed74c3 | 3131 | if (!bp->pdev->pm_cap) { |
51c1a580 | 3132 | BNX2X_DEV_INFO("No power capability. Breaking.\n"); |
adf5f6a1 DK |
3133 | return 0; |
3134 | } | |
3135 | ||
29ed74c3 | 3136 | pci_read_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_CTRL, &pmcsr); |
9f6c9258 DK |
3137 | |
3138 | switch (state) { | |
3139 | case PCI_D0: | |
29ed74c3 | 3140 | pci_write_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_CTRL, |
9f6c9258 DK |
3141 | ((pmcsr & ~PCI_PM_CTRL_STATE_MASK) | |
3142 | PCI_PM_CTRL_PME_STATUS)); | |
3143 | ||
3144 | if (pmcsr & PCI_PM_CTRL_STATE_MASK) | |
3145 | /* delay required during transition out of D3hot */ | |
3146 | msleep(20); | |
3147 | break; | |
3148 | ||
3149 | case PCI_D3hot: | |
3150 | /* If there are other clients above don't | |
3151 | shut down the power */ | |
3152 | if (atomic_read(&bp->pdev->enable_cnt) != 1) | |
3153 | return 0; | |
3154 | /* Don't shut down the power for emulation and FPGA */ | |
3155 | if (CHIP_REV_IS_SLOW(bp)) | |
3156 | return 0; | |
3157 | ||
3158 | pmcsr &= ~PCI_PM_CTRL_STATE_MASK; | |
3159 | pmcsr |= 3; | |
3160 | ||
3161 | if (bp->wol) | |
3162 | pmcsr |= PCI_PM_CTRL_PME_ENABLE; | |
3163 | ||
29ed74c3 | 3164 | pci_write_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_CTRL, |
9f6c9258 DK |
3165 | pmcsr); |
3166 | ||
3167 | /* No more memory access after this point until | |
3168 | * device is brought back to D0. | |
3169 | */ | |
3170 | break; | |
3171 | ||
3172 | default: | |
51c1a580 | 3173 | dev_err(&bp->pdev->dev, "Can't support state = %d\n", state); |
9f6c9258 DK |
3174 | return -EINVAL; |
3175 | } | |
3176 | return 0; | |
3177 | } | |
3178 | ||
9f6c9258 DK |
3179 | /* |
3180 | * net_device service functions | |
3181 | */ | |
a8f47eb7 | 3182 | static int bnx2x_poll(struct napi_struct *napi, int budget) |
9f6c9258 DK |
3183 | { |
3184 | int work_done = 0; | |
6383c0b3 | 3185 | u8 cos; |
9f6c9258 DK |
3186 | struct bnx2x_fastpath *fp = container_of(napi, struct bnx2x_fastpath, |
3187 | napi); | |
3188 | struct bnx2x *bp = fp->bp; | |
3189 | ||
3190 | while (1) { | |
3191 | #ifdef BNX2X_STOP_ON_ERROR | |
3192 | if (unlikely(bp->panic)) { | |
3193 | napi_complete(napi); | |
3194 | return 0; | |
3195 | } | |
3196 | #endif | |
8f20aa57 | 3197 | if (!bnx2x_fp_lock_napi(fp)) |
24e579c8 | 3198 | return budget; |
9f6c9258 | 3199 | |
6383c0b3 | 3200 | for_each_cos_in_tx_queue(fp, cos) |
65565884 MS |
3201 | if (bnx2x_tx_queue_has_work(fp->txdata_ptr[cos])) |
3202 | bnx2x_tx_int(bp, fp->txdata_ptr[cos]); | |
6383c0b3 | 3203 | |
9f6c9258 DK |
3204 | if (bnx2x_has_rx_work(fp)) { |
3205 | work_done += bnx2x_rx_int(fp, budget - work_done); | |
3206 | ||
3207 | /* must not complete if we consumed full budget */ | |
8f20aa57 DK |
3208 | if (work_done >= budget) { |
3209 | bnx2x_fp_unlock_napi(fp); | |
9f6c9258 | 3210 | break; |
8f20aa57 | 3211 | } |
9f6c9258 DK |
3212 | } |
3213 | ||
074975d0 ED |
3214 | bnx2x_fp_unlock_napi(fp); |
3215 | ||
9f6c9258 | 3216 | /* Fall out from the NAPI loop if needed */ |
074975d0 | 3217 | if (!(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) { |
55c11941 | 3218 | |
ec6ba945 VZ |
3219 | /* No need to update SB for FCoE L2 ring as long as |
3220 | * it's connected to the default SB and the SB | |
3221 | * has been updated when NAPI was scheduled. | |
3222 | */ | |
3223 | if (IS_FCOE_FP(fp)) { | |
3224 | napi_complete(napi); | |
3225 | break; | |
3226 | } | |
9f6c9258 | 3227 | bnx2x_update_fpsb_idx(fp); |
f85582f8 DK |
3228 | /* bnx2x_has_rx_work() reads the status block, |
3229 | * thus we need to ensure that status block indices | |
3230 | * have been actually read (bnx2x_update_fpsb_idx) | |
3231 | * prior to this check (bnx2x_has_rx_work) so that | |
3232 | * we won't write the "newer" value of the status block | |
3233 | * to IGU (if there was a DMA right after | |
3234 | * bnx2x_has_rx_work and if there is no rmb, the memory | |
3235 | * reading (bnx2x_update_fpsb_idx) may be postponed | |
3236 | * to right before bnx2x_ack_sb). In this case there | |
3237 | * will never be another interrupt until there is | |
3238 | * another update of the status block, while there | |
3239 | * is still unhandled work. | |
3240 | */ | |
9f6c9258 DK |
3241 | rmb(); |
3242 | ||
3243 | if (!(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) { | |
3244 | napi_complete(napi); | |
3245 | /* Re-enable interrupts */ | |
51c1a580 | 3246 | DP(NETIF_MSG_RX_STATUS, |
523224a3 DK |
3247 | "Update index to %d\n", fp->fp_hc_idx); |
3248 | bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, | |
3249 | le16_to_cpu(fp->fp_hc_idx), | |
9f6c9258 DK |
3250 | IGU_INT_ENABLE, 1); |
3251 | break; | |
3252 | } | |
3253 | } | |
3254 | } | |
3255 | ||
3256 | return work_done; | |
3257 | } | |
3258 | ||
e0d1095a | 3259 | #ifdef CONFIG_NET_RX_BUSY_POLL |
8f20aa57 DK |
3260 | /* must be called with local_bh_disable()d */ |
3261 | int bnx2x_low_latency_recv(struct napi_struct *napi) | |
3262 | { | |
3263 | struct bnx2x_fastpath *fp = container_of(napi, struct bnx2x_fastpath, | |
3264 | napi); | |
3265 | struct bnx2x *bp = fp->bp; | |
3266 | int found = 0; | |
3267 | ||
3268 | if ((bp->state == BNX2X_STATE_CLOSED) || | |
3269 | (bp->state == BNX2X_STATE_ERROR) || | |
f8dcb5e3 | 3270 | (bp->dev->features & (NETIF_F_LRO | NETIF_F_GRO))) |
8f20aa57 DK |
3271 | return LL_FLUSH_FAILED; |
3272 | ||
3273 | if (!bnx2x_fp_lock_poll(fp)) | |
3274 | return LL_FLUSH_BUSY; | |
3275 | ||
75b29459 | 3276 | if (bnx2x_has_rx_work(fp)) |
8f20aa57 | 3277 | found = bnx2x_rx_int(fp, 4); |
8f20aa57 DK |
3278 | |
3279 | bnx2x_fp_unlock_poll(fp); | |
3280 | ||
3281 | return found; | |
3282 | } | |
3283 | #endif | |
3284 | ||
9f6c9258 DK |
3285 | /* we split the first BD into headers and data BDs |
3286 | * to ease the pain of our fellow microcode engineers | |
3287 | * we use one mapping for both BDs | |
9f6c9258 | 3288 | */ |
91226790 DK |
3289 | static u16 bnx2x_tx_split(struct bnx2x *bp, |
3290 | struct bnx2x_fp_txdata *txdata, | |
3291 | struct sw_tx_bd *tx_buf, | |
3292 | struct eth_tx_start_bd **tx_bd, u16 hlen, | |
3293 | u16 bd_prod) | |
9f6c9258 DK |
3294 | { |
3295 | struct eth_tx_start_bd *h_tx_bd = *tx_bd; | |
3296 | struct eth_tx_bd *d_tx_bd; | |
3297 | dma_addr_t mapping; | |
3298 | int old_len = le16_to_cpu(h_tx_bd->nbytes); | |
3299 | ||
3300 | /* first fix first BD */ | |
9f6c9258 DK |
3301 | h_tx_bd->nbytes = cpu_to_le16(hlen); |
3302 | ||
91226790 DK |
3303 | DP(NETIF_MSG_TX_QUEUED, "TSO split header size is %d (%x:%x)\n", |
3304 | h_tx_bd->nbytes, h_tx_bd->addr_hi, h_tx_bd->addr_lo); | |
9f6c9258 DK |
3305 | |
3306 | /* now get a new data BD | |
3307 | * (after the pbd) and fill it */ | |
3308 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); | |
6383c0b3 | 3309 | d_tx_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
9f6c9258 DK |
3310 | |
3311 | mapping = HILO_U64(le32_to_cpu(h_tx_bd->addr_hi), | |
3312 | le32_to_cpu(h_tx_bd->addr_lo)) + hlen; | |
3313 | ||
3314 | d_tx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); | |
3315 | d_tx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); | |
3316 | d_tx_bd->nbytes = cpu_to_le16(old_len - hlen); | |
3317 | ||
3318 | /* this marks the BD as one that has no individual mapping */ | |
3319 | tx_buf->flags |= BNX2X_TSO_SPLIT_BD; | |
3320 | ||
3321 | DP(NETIF_MSG_TX_QUEUED, | |
3322 | "TSO split data size is %d (%x:%x)\n", | |
3323 | d_tx_bd->nbytes, d_tx_bd->addr_hi, d_tx_bd->addr_lo); | |
3324 | ||
3325 | /* update tx_bd */ | |
3326 | *tx_bd = (struct eth_tx_start_bd *)d_tx_bd; | |
3327 | ||
3328 | return bd_prod; | |
3329 | } | |
3330 | ||
86564c3f YM |
3331 | #define bswab32(b32) ((__force __le32) swab32((__force __u32) (b32))) |
3332 | #define bswab16(b16) ((__force __le16) swab16((__force __u16) (b16))) | |
91226790 | 3333 | static __le16 bnx2x_csum_fix(unsigned char *t_header, u16 csum, s8 fix) |
9f6c9258 | 3334 | { |
86564c3f YM |
3335 | __sum16 tsum = (__force __sum16) csum; |
3336 | ||
9f6c9258 | 3337 | if (fix > 0) |
86564c3f YM |
3338 | tsum = ~csum_fold(csum_sub((__force __wsum) csum, |
3339 | csum_partial(t_header - fix, fix, 0))); | |
9f6c9258 DK |
3340 | |
3341 | else if (fix < 0) | |
86564c3f YM |
3342 | tsum = ~csum_fold(csum_add((__force __wsum) csum, |
3343 | csum_partial(t_header, -fix, 0))); | |
9f6c9258 | 3344 | |
e2593fcd | 3345 | return bswab16(tsum); |
9f6c9258 DK |
3346 | } |
3347 | ||
91226790 | 3348 | static u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb) |
9f6c9258 DK |
3349 | { |
3350 | u32 rc; | |
a848ade4 DK |
3351 | __u8 prot = 0; |
3352 | __be16 protocol; | |
9f6c9258 DK |
3353 | |
3354 | if (skb->ip_summed != CHECKSUM_PARTIAL) | |
a848ade4 | 3355 | return XMIT_PLAIN; |
9f6c9258 | 3356 | |
a848ade4 DK |
3357 | protocol = vlan_get_protocol(skb); |
3358 | if (protocol == htons(ETH_P_IPV6)) { | |
3359 | rc = XMIT_CSUM_V6; | |
3360 | prot = ipv6_hdr(skb)->nexthdr; | |
3361 | } else { | |
3362 | rc = XMIT_CSUM_V4; | |
3363 | prot = ip_hdr(skb)->protocol; | |
3364 | } | |
9f6c9258 | 3365 | |
a848ade4 DK |
3366 | if (!CHIP_IS_E1x(bp) && skb->encapsulation) { |
3367 | if (inner_ip_hdr(skb)->version == 6) { | |
3368 | rc |= XMIT_CSUM_ENC_V6; | |
3369 | if (inner_ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) | |
3370 | rc |= XMIT_CSUM_TCP; | |
9f6c9258 | 3371 | } else { |
a848ade4 DK |
3372 | rc |= XMIT_CSUM_ENC_V4; |
3373 | if (inner_ip_hdr(skb)->protocol == IPPROTO_TCP) | |
9f6c9258 DK |
3374 | rc |= XMIT_CSUM_TCP; |
3375 | } | |
3376 | } | |
a848ade4 DK |
3377 | if (prot == IPPROTO_TCP) |
3378 | rc |= XMIT_CSUM_TCP; | |
9f6c9258 | 3379 | |
36a8f39e ED |
3380 | if (skb_is_gso(skb)) { |
3381 | if (skb_is_gso_v6(skb)) { | |
3382 | rc |= (XMIT_GSO_V6 | XMIT_CSUM_TCP); | |
3383 | if (rc & XMIT_CSUM_ENC) | |
3384 | rc |= XMIT_GSO_ENC_V6; | |
3385 | } else { | |
3386 | rc |= (XMIT_GSO_V4 | XMIT_CSUM_TCP); | |
3387 | if (rc & XMIT_CSUM_ENC) | |
3388 | rc |= XMIT_GSO_ENC_V4; | |
3389 | } | |
a848ade4 | 3390 | } |
9f6c9258 DK |
3391 | |
3392 | return rc; | |
3393 | } | |
3394 | ||
3395 | #if (MAX_SKB_FRAGS >= MAX_FETCH_BD - 3) | |
3396 | /* check if packet requires linearization (packet is too fragmented) | |
3397 | no need to check fragmentation if page size > 8K (there will be no | |
3398 | violation to FW restrictions) */ | |
3399 | static int bnx2x_pkt_req_lin(struct bnx2x *bp, struct sk_buff *skb, | |
3400 | u32 xmit_type) | |
3401 | { | |
3402 | int to_copy = 0; | |
3403 | int hlen = 0; | |
3404 | int first_bd_sz = 0; | |
3405 | ||
3406 | /* 3 = 1 (for linear data BD) + 2 (for PBD and last BD) */ | |
3407 | if (skb_shinfo(skb)->nr_frags >= (MAX_FETCH_BD - 3)) { | |
3408 | ||
3409 | if (xmit_type & XMIT_GSO) { | |
3410 | unsigned short lso_mss = skb_shinfo(skb)->gso_size; | |
3411 | /* Check if LSO packet needs to be copied: | |
3412 | 3 = 1 (for headers BD) + 2 (for PBD and last BD) */ | |
3413 | int wnd_size = MAX_FETCH_BD - 3; | |
3414 | /* Number of windows to check */ | |
3415 | int num_wnds = skb_shinfo(skb)->nr_frags - wnd_size; | |
3416 | int wnd_idx = 0; | |
3417 | int frag_idx = 0; | |
3418 | u32 wnd_sum = 0; | |
3419 | ||
3420 | /* Headers length */ | |
592b9b8d YM |
3421 | if (xmit_type & XMIT_GSO_ENC) |
3422 | hlen = (int)(skb_inner_transport_header(skb) - | |
3423 | skb->data) + | |
3424 | inner_tcp_hdrlen(skb); | |
3425 | else | |
3426 | hlen = (int)(skb_transport_header(skb) - | |
3427 | skb->data) + tcp_hdrlen(skb); | |
9f6c9258 DK |
3428 | |
3429 | /* Amount of data (w/o headers) on linear part of SKB*/ | |
3430 | first_bd_sz = skb_headlen(skb) - hlen; | |
3431 | ||
3432 | wnd_sum = first_bd_sz; | |
3433 | ||
3434 | /* Calculate the first sum - it's special */ | |
3435 | for (frag_idx = 0; frag_idx < wnd_size - 1; frag_idx++) | |
3436 | wnd_sum += | |
9e903e08 | 3437 | skb_frag_size(&skb_shinfo(skb)->frags[frag_idx]); |
9f6c9258 DK |
3438 | |
3439 | /* If there was data on linear skb data - check it */ | |
3440 | if (first_bd_sz > 0) { | |
3441 | if (unlikely(wnd_sum < lso_mss)) { | |
3442 | to_copy = 1; | |
3443 | goto exit_lbl; | |
3444 | } | |
3445 | ||
3446 | wnd_sum -= first_bd_sz; | |
3447 | } | |
3448 | ||
3449 | /* Others are easier: run through the frag list and | |
3450 | check all windows */ | |
3451 | for (wnd_idx = 0; wnd_idx <= num_wnds; wnd_idx++) { | |
3452 | wnd_sum += | |
9e903e08 | 3453 | skb_frag_size(&skb_shinfo(skb)->frags[wnd_idx + wnd_size - 1]); |
9f6c9258 DK |
3454 | |
3455 | if (unlikely(wnd_sum < lso_mss)) { | |
3456 | to_copy = 1; | |
3457 | break; | |
3458 | } | |
3459 | wnd_sum -= | |
9e903e08 | 3460 | skb_frag_size(&skb_shinfo(skb)->frags[wnd_idx]); |
9f6c9258 DK |
3461 | } |
3462 | } else { | |
3463 | /* in non-LSO too fragmented packet should always | |
3464 | be linearized */ | |
3465 | to_copy = 1; | |
3466 | } | |
3467 | } | |
3468 | ||
3469 | exit_lbl: | |
3470 | if (unlikely(to_copy)) | |
3471 | DP(NETIF_MSG_TX_QUEUED, | |
51c1a580 | 3472 | "Linearization IS REQUIRED for %s packet. num_frags %d hlen %d first_bd_sz %d\n", |
9f6c9258 DK |
3473 | (xmit_type & XMIT_GSO) ? "LSO" : "non-LSO", |
3474 | skb_shinfo(skb)->nr_frags, hlen, first_bd_sz); | |
3475 | ||
3476 | return to_copy; | |
3477 | } | |
3478 | #endif | |
3479 | ||
f2e0899f | 3480 | /** |
e8920674 | 3481 | * bnx2x_set_pbd_gso - update PBD in GSO case. |
f2e0899f | 3482 | * |
e8920674 DK |
3483 | * @skb: packet skb |
3484 | * @pbd: parse BD | |
3485 | * @xmit_type: xmit flags | |
f2e0899f | 3486 | */ |
91226790 DK |
3487 | static void bnx2x_set_pbd_gso(struct sk_buff *skb, |
3488 | struct eth_tx_parse_bd_e1x *pbd, | |
3489 | u32 xmit_type) | |
f2e0899f DK |
3490 | { |
3491 | pbd->lso_mss = cpu_to_le16(skb_shinfo(skb)->gso_size); | |
86564c3f | 3492 | pbd->tcp_send_seq = bswab32(tcp_hdr(skb)->seq); |
91226790 | 3493 | pbd->tcp_flags = pbd_tcp_flags(tcp_hdr(skb)); |
f2e0899f DK |
3494 | |
3495 | if (xmit_type & XMIT_GSO_V4) { | |
86564c3f | 3496 | pbd->ip_id = bswab16(ip_hdr(skb)->id); |
f2e0899f | 3497 | pbd->tcp_pseudo_csum = |
86564c3f YM |
3498 | bswab16(~csum_tcpudp_magic(ip_hdr(skb)->saddr, |
3499 | ip_hdr(skb)->daddr, | |
3500 | 0, IPPROTO_TCP, 0)); | |
057cf65e | 3501 | } else { |
f2e0899f | 3502 | pbd->tcp_pseudo_csum = |
86564c3f YM |
3503 | bswab16(~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, |
3504 | &ipv6_hdr(skb)->daddr, | |
3505 | 0, IPPROTO_TCP, 0)); | |
057cf65e | 3506 | } |
f2e0899f | 3507 | |
86564c3f YM |
3508 | pbd->global_data |= |
3509 | cpu_to_le16(ETH_TX_PARSE_BD_E1X_PSEUDO_CS_WITHOUT_LEN); | |
f2e0899f | 3510 | } |
f85582f8 | 3511 | |
a848ade4 DK |
3512 | /** |
3513 | * bnx2x_set_pbd_csum_enc - update PBD with checksum and return header length | |
3514 | * | |
3515 | * @bp: driver handle | |
3516 | * @skb: packet skb | |
3517 | * @parsing_data: data to be updated | |
3518 | * @xmit_type: xmit flags | |
3519 | * | |
3520 | * 57712/578xx related, when skb has encapsulation | |
3521 | */ | |
3522 | static u8 bnx2x_set_pbd_csum_enc(struct bnx2x *bp, struct sk_buff *skb, | |
3523 | u32 *parsing_data, u32 xmit_type) | |
3524 | { | |
3525 | *parsing_data |= | |
3526 | ((((u8 *)skb_inner_transport_header(skb) - skb->data) >> 1) << | |
3527 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) & | |
3528 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W; | |
3529 | ||
3530 | if (xmit_type & XMIT_CSUM_TCP) { | |
3531 | *parsing_data |= ((inner_tcp_hdrlen(skb) / 4) << | |
3532 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) & | |
3533 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW; | |
3534 | ||
3535 | return skb_inner_transport_header(skb) + | |
3536 | inner_tcp_hdrlen(skb) - skb->data; | |
3537 | } | |
3538 | ||
3539 | /* We support checksum offload for TCP and UDP only. | |
3540 | * No need to pass the UDP header length - it's a constant. | |
3541 | */ | |
3542 | return skb_inner_transport_header(skb) + | |
3543 | sizeof(struct udphdr) - skb->data; | |
3544 | } | |
3545 | ||
f2e0899f | 3546 | /** |
e8920674 | 3547 | * bnx2x_set_pbd_csum_e2 - update PBD with checksum and return header length |
f2e0899f | 3548 | * |
e8920674 DK |
3549 | * @bp: driver handle |
3550 | * @skb: packet skb | |
3551 | * @parsing_data: data to be updated | |
3552 | * @xmit_type: xmit flags | |
f2e0899f | 3553 | * |
91226790 | 3554 | * 57712/578xx related |
f2e0899f | 3555 | */ |
91226790 DK |
3556 | static u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb, |
3557 | u32 *parsing_data, u32 xmit_type) | |
f2e0899f | 3558 | { |
e39aece7 | 3559 | *parsing_data |= |
2de67439 | 3560 | ((((u8 *)skb_transport_header(skb) - skb->data) >> 1) << |
91226790 DK |
3561 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) & |
3562 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W; | |
f2e0899f | 3563 | |
e39aece7 VZ |
3564 | if (xmit_type & XMIT_CSUM_TCP) { |
3565 | *parsing_data |= ((tcp_hdrlen(skb) / 4) << | |
3566 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) & | |
3567 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW; | |
f2e0899f | 3568 | |
e39aece7 | 3569 | return skb_transport_header(skb) + tcp_hdrlen(skb) - skb->data; |
924d75ab YM |
3570 | } |
3571 | /* We support checksum offload for TCP and UDP only. | |
3572 | * No need to pass the UDP header length - it's a constant. | |
3573 | */ | |
3574 | return skb_transport_header(skb) + sizeof(struct udphdr) - skb->data; | |
f2e0899f DK |
3575 | } |
3576 | ||
a848ade4 | 3577 | /* set FW indication according to inner or outer protocols if tunneled */ |
91226790 DK |
3578 | static void bnx2x_set_sbd_csum(struct bnx2x *bp, struct sk_buff *skb, |
3579 | struct eth_tx_start_bd *tx_start_bd, | |
3580 | u32 xmit_type) | |
93ef5c02 | 3581 | { |
93ef5c02 DK |
3582 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_L4_CSUM; |
3583 | ||
a848ade4 | 3584 | if (xmit_type & (XMIT_CSUM_ENC_V6 | XMIT_CSUM_V6)) |
91226790 | 3585 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IPV6; |
93ef5c02 DK |
3586 | |
3587 | if (!(xmit_type & XMIT_CSUM_TCP)) | |
3588 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IS_UDP; | |
93ef5c02 DK |
3589 | } |
3590 | ||
f2e0899f | 3591 | /** |
e8920674 | 3592 | * bnx2x_set_pbd_csum - update PBD with checksum and return header length |
f2e0899f | 3593 | * |
e8920674 DK |
3594 | * @bp: driver handle |
3595 | * @skb: packet skb | |
3596 | * @pbd: parse BD to be updated | |
3597 | * @xmit_type: xmit flags | |
f2e0899f | 3598 | */ |
91226790 DK |
3599 | static u8 bnx2x_set_pbd_csum(struct bnx2x *bp, struct sk_buff *skb, |
3600 | struct eth_tx_parse_bd_e1x *pbd, | |
3601 | u32 xmit_type) | |
f2e0899f | 3602 | { |
e39aece7 | 3603 | u8 hlen = (skb_network_header(skb) - skb->data) >> 1; |
f2e0899f DK |
3604 | |
3605 | /* for now NS flag is not used in Linux */ | |
3606 | pbd->global_data = | |
86564c3f YM |
3607 | cpu_to_le16(hlen | |
3608 | ((skb->protocol == cpu_to_be16(ETH_P_8021Q)) << | |
3609 | ETH_TX_PARSE_BD_E1X_LLC_SNAP_EN_SHIFT)); | |
f2e0899f DK |
3610 | |
3611 | pbd->ip_hlen_w = (skb_transport_header(skb) - | |
e39aece7 | 3612 | skb_network_header(skb)) >> 1; |
f2e0899f | 3613 | |
e39aece7 VZ |
3614 | hlen += pbd->ip_hlen_w; |
3615 | ||
3616 | /* We support checksum offload for TCP and UDP only */ | |
3617 | if (xmit_type & XMIT_CSUM_TCP) | |
3618 | hlen += tcp_hdrlen(skb) / 2; | |
3619 | else | |
3620 | hlen += sizeof(struct udphdr) / 2; | |
f2e0899f DK |
3621 | |
3622 | pbd->total_hlen_w = cpu_to_le16(hlen); | |
3623 | hlen = hlen*2; | |
3624 | ||
3625 | if (xmit_type & XMIT_CSUM_TCP) { | |
86564c3f | 3626 | pbd->tcp_pseudo_csum = bswab16(tcp_hdr(skb)->check); |
f2e0899f DK |
3627 | |
3628 | } else { | |
3629 | s8 fix = SKB_CS_OFF(skb); /* signed! */ | |
3630 | ||
3631 | DP(NETIF_MSG_TX_QUEUED, | |
3632 | "hlen %d fix %d csum before fix %x\n", | |
3633 | le16_to_cpu(pbd->total_hlen_w), fix, SKB_CS(skb)); | |
3634 | ||
3635 | /* HW bug: fixup the CSUM */ | |
3636 | pbd->tcp_pseudo_csum = | |
3637 | bnx2x_csum_fix(skb_transport_header(skb), | |
3638 | SKB_CS(skb), fix); | |
3639 | ||
3640 | DP(NETIF_MSG_TX_QUEUED, "csum after fix %x\n", | |
3641 | pbd->tcp_pseudo_csum); | |
3642 | } | |
3643 | ||
3644 | return hlen; | |
3645 | } | |
f85582f8 | 3646 | |
a848ade4 DK |
3647 | static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb, |
3648 | struct eth_tx_parse_bd_e2 *pbd_e2, | |
3649 | struct eth_tx_parse_2nd_bd *pbd2, | |
3650 | u16 *global_data, | |
3651 | u32 xmit_type) | |
3652 | { | |
e287a75c | 3653 | u16 hlen_w = 0; |
a848ade4 | 3654 | u8 outerip_off, outerip_len = 0; |
e768fb29 | 3655 | |
e287a75c DK |
3656 | /* from outer IP to transport */ |
3657 | hlen_w = (skb_inner_transport_header(skb) - | |
3658 | skb_network_header(skb)) >> 1; | |
a848ade4 DK |
3659 | |
3660 | /* transport len */ | |
e768fb29 | 3661 | hlen_w += inner_tcp_hdrlen(skb) >> 1; |
a848ade4 | 3662 | |
e287a75c | 3663 | pbd2->fw_ip_hdr_to_payload_w = hlen_w; |
a848ade4 | 3664 | |
e768fb29 DK |
3665 | /* outer IP header info */ |
3666 | if (xmit_type & XMIT_CSUM_V4) { | |
e287a75c | 3667 | struct iphdr *iph = ip_hdr(skb); |
1b4fc0e2 DK |
3668 | u32 csum = (__force u32)(~iph->check) - |
3669 | (__force u32)iph->tot_len - | |
3670 | (__force u32)iph->frag_off; | |
c957d09f | 3671 | |
e42780b6 DK |
3672 | outerip_len = iph->ihl << 1; |
3673 | ||
a848ade4 | 3674 | pbd2->fw_ip_csum_wo_len_flags_frag = |
c957d09f | 3675 | bswab16(csum_fold((__force __wsum)csum)); |
a848ade4 DK |
3676 | } else { |
3677 | pbd2->fw_ip_hdr_to_payload_w = | |
e287a75c | 3678 | hlen_w - ((sizeof(struct ipv6hdr)) >> 1); |
e42780b6 | 3679 | pbd_e2->data.tunnel_data.flags |= |
05f8461b | 3680 | ETH_TUNNEL_DATA_IP_HDR_TYPE_OUTER; |
a848ade4 DK |
3681 | } |
3682 | ||
3683 | pbd2->tcp_send_seq = bswab32(inner_tcp_hdr(skb)->seq); | |
3684 | ||
3685 | pbd2->tcp_flags = pbd_tcp_flags(inner_tcp_hdr(skb)); | |
3686 | ||
e42780b6 DK |
3687 | /* inner IP header info */ |
3688 | if (xmit_type & XMIT_CSUM_ENC_V4) { | |
e287a75c | 3689 | pbd2->hw_ip_id = bswab16(inner_ip_hdr(skb)->id); |
a848ade4 DK |
3690 | |
3691 | pbd_e2->data.tunnel_data.pseudo_csum = | |
3692 | bswab16(~csum_tcpudp_magic( | |
3693 | inner_ip_hdr(skb)->saddr, | |
3694 | inner_ip_hdr(skb)->daddr, | |
3695 | 0, IPPROTO_TCP, 0)); | |
a848ade4 DK |
3696 | } else { |
3697 | pbd_e2->data.tunnel_data.pseudo_csum = | |
3698 | bswab16(~csum_ipv6_magic( | |
3699 | &inner_ipv6_hdr(skb)->saddr, | |
3700 | &inner_ipv6_hdr(skb)->daddr, | |
3701 | 0, IPPROTO_TCP, 0)); | |
3702 | } | |
3703 | ||
3704 | outerip_off = (skb_network_header(skb) - skb->data) >> 1; | |
3705 | ||
3706 | *global_data |= | |
3707 | outerip_off | | |
a848ade4 DK |
3708 | (outerip_len << |
3709 | ETH_TX_PARSE_2ND_BD_IP_HDR_LEN_OUTER_W_SHIFT) | | |
3710 | ((skb->protocol == cpu_to_be16(ETH_P_8021Q)) << | |
3711 | ETH_TX_PARSE_2ND_BD_LLC_SNAP_EN_SHIFT); | |
65bc0cfe DK |
3712 | |
3713 | if (ip_hdr(skb)->protocol == IPPROTO_UDP) { | |
3714 | SET_FLAG(*global_data, ETH_TX_PARSE_2ND_BD_TUNNEL_UDP_EXIST, 1); | |
3715 | pbd2->tunnel_udp_hdr_start_w = skb_transport_offset(skb) >> 1; | |
3716 | } | |
a848ade4 DK |
3717 | } |
3718 | ||
e42780b6 DK |
3719 | static inline void bnx2x_set_ipv6_ext_e2(struct sk_buff *skb, u32 *parsing_data, |
3720 | u32 xmit_type) | |
3721 | { | |
3722 | struct ipv6hdr *ipv6; | |
3723 | ||
3724 | if (!(xmit_type & (XMIT_GSO_ENC_V6 | XMIT_GSO_V6))) | |
3725 | return; | |
3726 | ||
3727 | if (xmit_type & XMIT_GSO_ENC_V6) | |
3728 | ipv6 = inner_ipv6_hdr(skb); | |
3729 | else /* XMIT_GSO_V6 */ | |
3730 | ipv6 = ipv6_hdr(skb); | |
3731 | ||
3732 | if (ipv6->nexthdr == NEXTHDR_IPV6) | |
3733 | *parsing_data |= ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR; | |
3734 | } | |
3735 | ||
9f6c9258 DK |
3736 | /* called with netif_tx_lock |
3737 | * bnx2x_tx_int() runs without netif_tx_lock unless it needs to call | |
3738 | * netif_wake_queue() | |
3739 | */ | |
3740 | netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
3741 | { | |
3742 | struct bnx2x *bp = netdev_priv(dev); | |
6383c0b3 | 3743 | |
9f6c9258 | 3744 | struct netdev_queue *txq; |
6383c0b3 | 3745 | struct bnx2x_fp_txdata *txdata; |
9f6c9258 | 3746 | struct sw_tx_bd *tx_buf; |
619c5cb6 | 3747 | struct eth_tx_start_bd *tx_start_bd, *first_bd; |
9f6c9258 | 3748 | struct eth_tx_bd *tx_data_bd, *total_pkt_bd = NULL; |
523224a3 | 3749 | struct eth_tx_parse_bd_e1x *pbd_e1x = NULL; |
f2e0899f | 3750 | struct eth_tx_parse_bd_e2 *pbd_e2 = NULL; |
a848ade4 | 3751 | struct eth_tx_parse_2nd_bd *pbd2 = NULL; |
2297a2da | 3752 | u32 pbd_e2_parsing_data = 0; |
9f6c9258 | 3753 | u16 pkt_prod, bd_prod; |
65565884 | 3754 | int nbd, txq_index; |
9f6c9258 DK |
3755 | dma_addr_t mapping; |
3756 | u32 xmit_type = bnx2x_xmit_type(bp, skb); | |
3757 | int i; | |
3758 | u8 hlen = 0; | |
3759 | __le16 pkt_size = 0; | |
3760 | struct ethhdr *eth; | |
3761 | u8 mac_type = UNICAST_ADDRESS; | |
3762 | ||
3763 | #ifdef BNX2X_STOP_ON_ERROR | |
3764 | if (unlikely(bp->panic)) | |
3765 | return NETDEV_TX_BUSY; | |
3766 | #endif | |
3767 | ||
6383c0b3 AE |
3768 | txq_index = skb_get_queue_mapping(skb); |
3769 | txq = netdev_get_tx_queue(dev, txq_index); | |
3770 | ||
55c11941 | 3771 | BUG_ON(txq_index >= MAX_ETH_TXQ_IDX(bp) + (CNIC_LOADED(bp) ? 1 : 0)); |
6383c0b3 | 3772 | |
65565884 | 3773 | txdata = &bp->bnx2x_txq[txq_index]; |
6383c0b3 AE |
3774 | |
3775 | /* enable this debug print to view the transmission queue being used | |
51c1a580 | 3776 | DP(NETIF_MSG_TX_QUEUED, "indices: txq %d, fp %d, txdata %d\n", |
6383c0b3 | 3777 | txq_index, fp_index, txdata_index); */ |
9f6c9258 | 3778 | |
16a5fd92 | 3779 | /* enable this debug print to view the transmission details |
51c1a580 MS |
3780 | DP(NETIF_MSG_TX_QUEUED, |
3781 | "transmitting packet cid %d fp index %d txdata_index %d tx_data ptr %p fp pointer %p\n", | |
6383c0b3 | 3782 | txdata->cid, fp_index, txdata_index, txdata, fp); */ |
9f6c9258 | 3783 | |
6383c0b3 | 3784 | if (unlikely(bnx2x_tx_avail(bp, txdata) < |
7df2dc6b DK |
3785 | skb_shinfo(skb)->nr_frags + |
3786 | BDS_PER_TX_PKT + | |
3787 | NEXT_CNT_PER_TX_PKT(MAX_BDS_PER_TX_PKT))) { | |
2384d6aa | 3788 | /* Handle special storage cases separately */ |
c96bdc0c DK |
3789 | if (txdata->tx_ring_size == 0) { |
3790 | struct bnx2x_eth_q_stats *q_stats = | |
3791 | bnx2x_fp_qstats(bp, txdata->parent_fp); | |
3792 | q_stats->driver_filtered_tx_pkt++; | |
3793 | dev_kfree_skb(skb); | |
3794 | return NETDEV_TX_OK; | |
3795 | } | |
2de67439 YM |
3796 | bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++; |
3797 | netif_tx_stop_queue(txq); | |
c96bdc0c | 3798 | BNX2X_ERR("BUG! Tx ring full when queue awake!\n"); |
2384d6aa | 3799 | |
9f6c9258 DK |
3800 | return NETDEV_TX_BUSY; |
3801 | } | |
3802 | ||
51c1a580 | 3803 | DP(NETIF_MSG_TX_QUEUED, |
04c46736 | 3804 | "queue[%d]: SKB: summed %x protocol %x protocol(%x,%x) gso type %x xmit_type %x len %d\n", |
6383c0b3 | 3805 | txq_index, skb->ip_summed, skb->protocol, ipv6_hdr(skb)->nexthdr, |
04c46736 YM |
3806 | ip_hdr(skb)->protocol, skb_shinfo(skb)->gso_type, xmit_type, |
3807 | skb->len); | |
9f6c9258 DK |
3808 | |
3809 | eth = (struct ethhdr *)skb->data; | |
3810 | ||
3811 | /* set flag according to packet type (UNICAST_ADDRESS is default)*/ | |
3812 | if (unlikely(is_multicast_ether_addr(eth->h_dest))) { | |
3813 | if (is_broadcast_ether_addr(eth->h_dest)) | |
3814 | mac_type = BROADCAST_ADDRESS; | |
3815 | else | |
3816 | mac_type = MULTICAST_ADDRESS; | |
3817 | } | |
3818 | ||
91226790 | 3819 | #if (MAX_SKB_FRAGS >= MAX_FETCH_BD - BDS_PER_TX_PKT) |
9f6c9258 DK |
3820 | /* First, check if we need to linearize the skb (due to FW |
3821 | restrictions). No need to check fragmentation if page size > 8K | |
3822 | (there will be no violation to FW restrictions) */ | |
3823 | if (bnx2x_pkt_req_lin(bp, skb, xmit_type)) { | |
3824 | /* Statistics of linearization */ | |
3825 | bp->lin_cnt++; | |
3826 | if (skb_linearize(skb) != 0) { | |
51c1a580 MS |
3827 | DP(NETIF_MSG_TX_QUEUED, |
3828 | "SKB linearization failed - silently dropping this SKB\n"); | |
9f6c9258 DK |
3829 | dev_kfree_skb_any(skb); |
3830 | return NETDEV_TX_OK; | |
3831 | } | |
3832 | } | |
3833 | #endif | |
619c5cb6 VZ |
3834 | /* Map skb linear data for DMA */ |
3835 | mapping = dma_map_single(&bp->pdev->dev, skb->data, | |
3836 | skb_headlen(skb), DMA_TO_DEVICE); | |
3837 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { | |
51c1a580 MS |
3838 | DP(NETIF_MSG_TX_QUEUED, |
3839 | "SKB mapping failed - silently dropping this SKB\n"); | |
619c5cb6 VZ |
3840 | dev_kfree_skb_any(skb); |
3841 | return NETDEV_TX_OK; | |
3842 | } | |
9f6c9258 DK |
3843 | /* |
3844 | Please read carefully. First we use one BD which we mark as start, | |
3845 | then we have a parsing info BD (used for TSO or xsum), | |
3846 | and only then we have the rest of the TSO BDs. | |
3847 | (don't forget to mark the last one as last, | |
3848 | and to unmap only AFTER you write to the BD ...) | |
3849 | And above all, all pdb sizes are in words - NOT DWORDS! | |
3850 | */ | |
3851 | ||
619c5cb6 VZ |
3852 | /* get current pkt produced now - advance it just before sending packet |
3853 | * since mapping of pages may fail and cause packet to be dropped | |
3854 | */ | |
6383c0b3 AE |
3855 | pkt_prod = txdata->tx_pkt_prod; |
3856 | bd_prod = TX_BD(txdata->tx_bd_prod); | |
9f6c9258 | 3857 | |
619c5cb6 VZ |
3858 | /* get a tx_buf and first BD |
3859 | * tx_start_bd may be changed during SPLIT, | |
3860 | * but first_bd will always stay first | |
3861 | */ | |
6383c0b3 AE |
3862 | tx_buf = &txdata->tx_buf_ring[TX_BD(pkt_prod)]; |
3863 | tx_start_bd = &txdata->tx_desc_ring[bd_prod].start_bd; | |
619c5cb6 | 3864 | first_bd = tx_start_bd; |
9f6c9258 DK |
3865 | |
3866 | tx_start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD; | |
f85582f8 | 3867 | |
eeed018c MK |
3868 | if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) { |
3869 | if (!(bp->flags & TX_TIMESTAMPING_EN)) { | |
3870 | BNX2X_ERR("Tx timestamping was not enabled, this packet will not be timestamped\n"); | |
3871 | } else if (bp->ptp_tx_skb) { | |
3872 | BNX2X_ERR("The device supports only a single outstanding packet to timestamp, this packet will not be timestamped\n"); | |
3873 | } else { | |
3874 | skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; | |
3875 | /* schedule check for Tx timestamp */ | |
3876 | bp->ptp_tx_skb = skb_get(skb); | |
3877 | bp->ptp_tx_start = jiffies; | |
3878 | schedule_work(&bp->ptp_task); | |
3879 | } | |
3880 | } | |
3881 | ||
91226790 DK |
3882 | /* header nbd: indirectly zero other flags! */ |
3883 | tx_start_bd->general_data = 1 << ETH_TX_START_BD_HDR_NBDS_SHIFT; | |
9f6c9258 DK |
3884 | |
3885 | /* remember the first BD of the packet */ | |
6383c0b3 | 3886 | tx_buf->first_bd = txdata->tx_bd_prod; |
9f6c9258 DK |
3887 | tx_buf->skb = skb; |
3888 | tx_buf->flags = 0; | |
3889 | ||
3890 | DP(NETIF_MSG_TX_QUEUED, | |
3891 | "sending pkt %u @%p next_idx %u bd %u @%p\n", | |
6383c0b3 | 3892 | pkt_prod, tx_buf, txdata->tx_pkt_prod, bd_prod, tx_start_bd); |
9f6c9258 | 3893 | |
df8a39de | 3894 | if (skb_vlan_tag_present(skb)) { |
523224a3 | 3895 | tx_start_bd->vlan_or_ethertype = |
df8a39de | 3896 | cpu_to_le16(skb_vlan_tag_get(skb)); |
523224a3 DK |
3897 | tx_start_bd->bd_flags.as_bitfield |= |
3898 | (X_ETH_OUTBAND_VLAN << ETH_TX_BD_FLAGS_VLAN_MODE_SHIFT); | |
dc1ba591 AE |
3899 | } else { |
3900 | /* when transmitting in a vf, start bd must hold the ethertype | |
3901 | * for fw to enforce it | |
3902 | */ | |
ea36475a | 3903 | #ifndef BNX2X_STOP_ON_ERROR |
91226790 | 3904 | if (IS_VF(bp)) |
ea36475a | 3905 | #endif |
dc1ba591 AE |
3906 | tx_start_bd->vlan_or_ethertype = |
3907 | cpu_to_le16(ntohs(eth->h_proto)); | |
ea36475a | 3908 | #ifndef BNX2X_STOP_ON_ERROR |
91226790 | 3909 | else |
dc1ba591 AE |
3910 | /* used by FW for packet accounting */ |
3911 | tx_start_bd->vlan_or_ethertype = cpu_to_le16(pkt_prod); | |
ea36475a | 3912 | #endif |
dc1ba591 | 3913 | } |
9f6c9258 | 3914 | |
91226790 DK |
3915 | nbd = 2; /* start_bd + pbd + frags (updated when pages are mapped) */ |
3916 | ||
9f6c9258 DK |
3917 | /* turn on parsing and get a BD */ |
3918 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); | |
9f6c9258 | 3919 | |
93ef5c02 DK |
3920 | if (xmit_type & XMIT_CSUM) |
3921 | bnx2x_set_sbd_csum(bp, skb, tx_start_bd, xmit_type); | |
9f6c9258 | 3922 | |
619c5cb6 | 3923 | if (!CHIP_IS_E1x(bp)) { |
6383c0b3 | 3924 | pbd_e2 = &txdata->tx_desc_ring[bd_prod].parse_bd_e2; |
f2e0899f | 3925 | memset(pbd_e2, 0, sizeof(struct eth_tx_parse_bd_e2)); |
a848ade4 DK |
3926 | |
3927 | if (xmit_type & XMIT_CSUM_ENC) { | |
3928 | u16 global_data = 0; | |
3929 | ||
3930 | /* Set PBD in enc checksum offload case */ | |
3931 | hlen = bnx2x_set_pbd_csum_enc(bp, skb, | |
3932 | &pbd_e2_parsing_data, | |
3933 | xmit_type); | |
3934 | ||
3935 | /* turn on 2nd parsing and get a BD */ | |
3936 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); | |
3937 | ||
3938 | pbd2 = &txdata->tx_desc_ring[bd_prod].parse_2nd_bd; | |
3939 | ||
3940 | memset(pbd2, 0, sizeof(*pbd2)); | |
3941 | ||
3942 | pbd_e2->data.tunnel_data.ip_hdr_start_inner_w = | |
3943 | (skb_inner_network_header(skb) - | |
3944 | skb->data) >> 1; | |
3945 | ||
3946 | if (xmit_type & XMIT_GSO_ENC) | |
3947 | bnx2x_update_pbds_gso_enc(skb, pbd_e2, pbd2, | |
3948 | &global_data, | |
3949 | xmit_type); | |
3950 | ||
3951 | pbd2->global_data = cpu_to_le16(global_data); | |
3952 | ||
3953 | /* add addition parse BD indication to start BD */ | |
3954 | SET_FLAG(tx_start_bd->general_data, | |
3955 | ETH_TX_START_BD_PARSE_NBDS, 1); | |
3956 | /* set encapsulation flag in start BD */ | |
3957 | SET_FLAG(tx_start_bd->general_data, | |
3958 | ETH_TX_START_BD_TUNNEL_EXIST, 1); | |
fe26566d DK |
3959 | |
3960 | tx_buf->flags |= BNX2X_HAS_SECOND_PBD; | |
3961 | ||
a848ade4 DK |
3962 | nbd++; |
3963 | } else if (xmit_type & XMIT_CSUM) { | |
91226790 | 3964 | /* Set PBD in checksum offload case w/o encapsulation */ |
2297a2da VZ |
3965 | hlen = bnx2x_set_pbd_csum_e2(bp, skb, |
3966 | &pbd_e2_parsing_data, | |
3967 | xmit_type); | |
a848ade4 | 3968 | } |
dc1ba591 | 3969 | |
e42780b6 | 3970 | bnx2x_set_ipv6_ext_e2(skb, &pbd_e2_parsing_data, xmit_type); |
babe723d YM |
3971 | /* Add the macs to the parsing BD if this is a vf or if |
3972 | * Tx Switching is enabled. | |
3973 | */ | |
91226790 DK |
3974 | if (IS_VF(bp)) { |
3975 | /* override GRE parameters in BD */ | |
3976 | bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.src_hi, | |
3977 | &pbd_e2->data.mac_addr.src_mid, | |
3978 | &pbd_e2->data.mac_addr.src_lo, | |
619c5cb6 | 3979 | eth->h_source); |
91226790 | 3980 | |
babe723d YM |
3981 | bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.dst_hi, |
3982 | &pbd_e2->data.mac_addr.dst_mid, | |
3983 | &pbd_e2->data.mac_addr.dst_lo, | |
3984 | eth->h_dest); | |
ea36475a YM |
3985 | } else { |
3986 | if (bp->flags & TX_SWITCHING) | |
3987 | bnx2x_set_fw_mac_addr( | |
3988 | &pbd_e2->data.mac_addr.dst_hi, | |
3989 | &pbd_e2->data.mac_addr.dst_mid, | |
3990 | &pbd_e2->data.mac_addr.dst_lo, | |
3991 | eth->h_dest); | |
3992 | #ifdef BNX2X_STOP_ON_ERROR | |
3993 | /* Enforce security is always set in Stop on Error - | |
3994 | * source mac should be present in the parsing BD | |
3995 | */ | |
3996 | bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.src_hi, | |
3997 | &pbd_e2->data.mac_addr.src_mid, | |
3998 | &pbd_e2->data.mac_addr.src_lo, | |
3999 | eth->h_source); | |
4000 | #endif | |
619c5cb6 | 4001 | } |
96bed4b9 YM |
4002 | |
4003 | SET_FLAG(pbd_e2_parsing_data, | |
4004 | ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE, mac_type); | |
f2e0899f | 4005 | } else { |
96bed4b9 | 4006 | u16 global_data = 0; |
6383c0b3 | 4007 | pbd_e1x = &txdata->tx_desc_ring[bd_prod].parse_bd_e1x; |
f2e0899f DK |
4008 | memset(pbd_e1x, 0, sizeof(struct eth_tx_parse_bd_e1x)); |
4009 | /* Set PBD in checksum offload case */ | |
4010 | if (xmit_type & XMIT_CSUM) | |
4011 | hlen = bnx2x_set_pbd_csum(bp, skb, pbd_e1x, xmit_type); | |
9f6c9258 | 4012 | |
96bed4b9 YM |
4013 | SET_FLAG(global_data, |
4014 | ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE, mac_type); | |
4015 | pbd_e1x->global_data |= cpu_to_le16(global_data); | |
9f6c9258 DK |
4016 | } |
4017 | ||
f85582f8 | 4018 | /* Setup the data pointer of the first BD of the packet */ |
9f6c9258 DK |
4019 | tx_start_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
4020 | tx_start_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); | |
9f6c9258 DK |
4021 | tx_start_bd->nbytes = cpu_to_le16(skb_headlen(skb)); |
4022 | pkt_size = tx_start_bd->nbytes; | |
4023 | ||
51c1a580 | 4024 | DP(NETIF_MSG_TX_QUEUED, |
91226790 | 4025 | "first bd @%p addr (%x:%x) nbytes %d flags %x vlan %x\n", |
9f6c9258 | 4026 | tx_start_bd, tx_start_bd->addr_hi, tx_start_bd->addr_lo, |
91226790 | 4027 | le16_to_cpu(tx_start_bd->nbytes), |
523224a3 DK |
4028 | tx_start_bd->bd_flags.as_bitfield, |
4029 | le16_to_cpu(tx_start_bd->vlan_or_ethertype)); | |
9f6c9258 DK |
4030 | |
4031 | if (xmit_type & XMIT_GSO) { | |
4032 | ||
4033 | DP(NETIF_MSG_TX_QUEUED, | |
4034 | "TSO packet len %d hlen %d total len %d tso size %d\n", | |
4035 | skb->len, hlen, skb_headlen(skb), | |
4036 | skb_shinfo(skb)->gso_size); | |
4037 | ||
4038 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_SW_LSO; | |
4039 | ||
91226790 DK |
4040 | if (unlikely(skb_headlen(skb) > hlen)) { |
4041 | nbd++; | |
6383c0b3 AE |
4042 | bd_prod = bnx2x_tx_split(bp, txdata, tx_buf, |
4043 | &tx_start_bd, hlen, | |
91226790 DK |
4044 | bd_prod); |
4045 | } | |
619c5cb6 | 4046 | if (!CHIP_IS_E1x(bp)) |
e42780b6 DK |
4047 | pbd_e2_parsing_data |= |
4048 | (skb_shinfo(skb)->gso_size << | |
4049 | ETH_TX_PARSE_BD_E2_LSO_MSS_SHIFT) & | |
4050 | ETH_TX_PARSE_BD_E2_LSO_MSS; | |
f2e0899f | 4051 | else |
e42780b6 | 4052 | bnx2x_set_pbd_gso(skb, pbd_e1x, xmit_type); |
9f6c9258 | 4053 | } |
2297a2da VZ |
4054 | |
4055 | /* Set the PBD's parsing_data field if not zero | |
4056 | * (for the chips newer than 57711). | |
4057 | */ | |
4058 | if (pbd_e2_parsing_data) | |
4059 | pbd_e2->parsing_data = cpu_to_le32(pbd_e2_parsing_data); | |
4060 | ||
9f6c9258 DK |
4061 | tx_data_bd = (struct eth_tx_bd *)tx_start_bd; |
4062 | ||
f85582f8 | 4063 | /* Handle fragmented skb */ |
9f6c9258 DK |
4064 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
4065 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
4066 | ||
9e903e08 ED |
4067 | mapping = skb_frag_dma_map(&bp->pdev->dev, frag, 0, |
4068 | skb_frag_size(frag), DMA_TO_DEVICE); | |
619c5cb6 | 4069 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
2df1a70a | 4070 | unsigned int pkts_compl = 0, bytes_compl = 0; |
619c5cb6 | 4071 | |
51c1a580 MS |
4072 | DP(NETIF_MSG_TX_QUEUED, |
4073 | "Unable to map page - dropping packet...\n"); | |
619c5cb6 VZ |
4074 | |
4075 | /* we need unmap all buffers already mapped | |
4076 | * for this SKB; | |
4077 | * first_bd->nbd need to be properly updated | |
4078 | * before call to bnx2x_free_tx_pkt | |
4079 | */ | |
4080 | first_bd->nbd = cpu_to_le16(nbd); | |
6383c0b3 | 4081 | bnx2x_free_tx_pkt(bp, txdata, |
2df1a70a TH |
4082 | TX_BD(txdata->tx_pkt_prod), |
4083 | &pkts_compl, &bytes_compl); | |
619c5cb6 VZ |
4084 | return NETDEV_TX_OK; |
4085 | } | |
4086 | ||
9f6c9258 | 4087 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
6383c0b3 | 4088 | tx_data_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
9f6c9258 | 4089 | if (total_pkt_bd == NULL) |
6383c0b3 | 4090 | total_pkt_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
9f6c9258 | 4091 | |
9f6c9258 DK |
4092 | tx_data_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
4093 | tx_data_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); | |
9e903e08 ED |
4094 | tx_data_bd->nbytes = cpu_to_le16(skb_frag_size(frag)); |
4095 | le16_add_cpu(&pkt_size, skb_frag_size(frag)); | |
619c5cb6 | 4096 | nbd++; |
9f6c9258 DK |
4097 | |
4098 | DP(NETIF_MSG_TX_QUEUED, | |
4099 | "frag %d bd @%p addr (%x:%x) nbytes %d\n", | |
4100 | i, tx_data_bd, tx_data_bd->addr_hi, tx_data_bd->addr_lo, | |
4101 | le16_to_cpu(tx_data_bd->nbytes)); | |
4102 | } | |
4103 | ||
4104 | DP(NETIF_MSG_TX_QUEUED, "last bd @%p\n", tx_data_bd); | |
4105 | ||
619c5cb6 VZ |
4106 | /* update with actual num BDs */ |
4107 | first_bd->nbd = cpu_to_le16(nbd); | |
4108 | ||
9f6c9258 DK |
4109 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
4110 | ||
4111 | /* now send a tx doorbell, counting the next BD | |
4112 | * if the packet contains or ends with it | |
4113 | */ | |
4114 | if (TX_BD_POFF(bd_prod) < nbd) | |
4115 | nbd++; | |
4116 | ||
619c5cb6 VZ |
4117 | /* total_pkt_bytes should be set on the first data BD if |
4118 | * it's not an LSO packet and there is more than one | |
4119 | * data BD. In this case pkt_size is limited by an MTU value. | |
4120 | * However we prefer to set it for an LSO packet (while we don't | |
4121 | * have to) in order to save some CPU cycles in a none-LSO | |
4122 | * case, when we much more care about them. | |
4123 | */ | |
9f6c9258 DK |
4124 | if (total_pkt_bd != NULL) |
4125 | total_pkt_bd->total_pkt_bytes = pkt_size; | |
4126 | ||
523224a3 | 4127 | if (pbd_e1x) |
9f6c9258 | 4128 | DP(NETIF_MSG_TX_QUEUED, |
51c1a580 | 4129 | "PBD (E1X) @%p ip_data %x ip_hlen %u ip_id %u lso_mss %u tcp_flags %x xsum %x seq %u hlen %u\n", |
523224a3 DK |
4130 | pbd_e1x, pbd_e1x->global_data, pbd_e1x->ip_hlen_w, |
4131 | pbd_e1x->ip_id, pbd_e1x->lso_mss, pbd_e1x->tcp_flags, | |
4132 | pbd_e1x->tcp_pseudo_csum, pbd_e1x->tcp_send_seq, | |
4133 | le16_to_cpu(pbd_e1x->total_hlen_w)); | |
f2e0899f DK |
4134 | if (pbd_e2) |
4135 | DP(NETIF_MSG_TX_QUEUED, | |
4136 | "PBD (E2) @%p dst %x %x %x src %x %x %x parsing_data %x\n", | |
91226790 DK |
4137 | pbd_e2, |
4138 | pbd_e2->data.mac_addr.dst_hi, | |
4139 | pbd_e2->data.mac_addr.dst_mid, | |
4140 | pbd_e2->data.mac_addr.dst_lo, | |
4141 | pbd_e2->data.mac_addr.src_hi, | |
4142 | pbd_e2->data.mac_addr.src_mid, | |
4143 | pbd_e2->data.mac_addr.src_lo, | |
f2e0899f | 4144 | pbd_e2->parsing_data); |
9f6c9258 DK |
4145 | DP(NETIF_MSG_TX_QUEUED, "doorbell: nbd %d bd %u\n", nbd, bd_prod); |
4146 | ||
2df1a70a TH |
4147 | netdev_tx_sent_queue(txq, skb->len); |
4148 | ||
8373c57d WB |
4149 | skb_tx_timestamp(skb); |
4150 | ||
6383c0b3 | 4151 | txdata->tx_pkt_prod++; |
9f6c9258 DK |
4152 | /* |
4153 | * Make sure that the BD data is updated before updating the producer | |
4154 | * since FW might read the BD right after the producer is updated. | |
4155 | * This is only applicable for weak-ordered memory model archs such | |
4156 | * as IA-64. The following barrier is also mandatory since FW will | |
4157 | * assumes packets must have BDs. | |
4158 | */ | |
4159 | wmb(); | |
4160 | ||
6383c0b3 | 4161 | txdata->tx_db.data.prod += nbd; |
9f6c9258 | 4162 | barrier(); |
f85582f8 | 4163 | |
6383c0b3 | 4164 | DOORBELL(bp, txdata->cid, txdata->tx_db.raw); |
9f6c9258 DK |
4165 | |
4166 | mmiowb(); | |
4167 | ||
6383c0b3 | 4168 | txdata->tx_bd_prod += nbd; |
9f6c9258 | 4169 | |
7df2dc6b | 4170 | if (unlikely(bnx2x_tx_avail(bp, txdata) < MAX_DESC_PER_TX_PKT)) { |
9f6c9258 DK |
4171 | netif_tx_stop_queue(txq); |
4172 | ||
4173 | /* paired memory barrier is in bnx2x_tx_int(), we have to keep | |
4174 | * ordering of set_bit() in netif_tx_stop_queue() and read of | |
4175 | * fp->bd_tx_cons */ | |
4176 | smp_mb(); | |
4177 | ||
15192a8c | 4178 | bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++; |
7df2dc6b | 4179 | if (bnx2x_tx_avail(bp, txdata) >= MAX_DESC_PER_TX_PKT) |
9f6c9258 DK |
4180 | netif_tx_wake_queue(txq); |
4181 | } | |
6383c0b3 | 4182 | txdata->tx_pkt++; |
9f6c9258 DK |
4183 | |
4184 | return NETDEV_TX_OK; | |
4185 | } | |
f85582f8 | 4186 | |
6383c0b3 AE |
4187 | /** |
4188 | * bnx2x_setup_tc - routine to configure net_device for multi tc | |
4189 | * | |
4190 | * @netdev: net device to configure | |
4191 | * @tc: number of traffic classes to enable | |
4192 | * | |
4193 | * callback connected to the ndo_setup_tc function pointer | |
4194 | */ | |
4195 | int bnx2x_setup_tc(struct net_device *dev, u8 num_tc) | |
4196 | { | |
4197 | int cos, prio, count, offset; | |
4198 | struct bnx2x *bp = netdev_priv(dev); | |
4199 | ||
4200 | /* setup tc must be called under rtnl lock */ | |
4201 | ASSERT_RTNL(); | |
4202 | ||
16a5fd92 | 4203 | /* no traffic classes requested. Aborting */ |
6383c0b3 AE |
4204 | if (!num_tc) { |
4205 | netdev_reset_tc(dev); | |
4206 | return 0; | |
4207 | } | |
4208 | ||
4209 | /* requested to support too many traffic classes */ | |
4210 | if (num_tc > bp->max_cos) { | |
6bf07b8e | 4211 | BNX2X_ERR("support for too many traffic classes requested: %d. Max supported is %d\n", |
51c1a580 | 4212 | num_tc, bp->max_cos); |
6383c0b3 AE |
4213 | return -EINVAL; |
4214 | } | |
4215 | ||
4216 | /* declare amount of supported traffic classes */ | |
4217 | if (netdev_set_num_tc(dev, num_tc)) { | |
51c1a580 | 4218 | BNX2X_ERR("failed to declare %d traffic classes\n", num_tc); |
6383c0b3 AE |
4219 | return -EINVAL; |
4220 | } | |
4221 | ||
4222 | /* configure priority to traffic class mapping */ | |
4223 | for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) { | |
4224 | netdev_set_prio_tc_map(dev, prio, bp->prio_to_cos[prio]); | |
51c1a580 MS |
4225 | DP(BNX2X_MSG_SP | NETIF_MSG_IFUP, |
4226 | "mapping priority %d to tc %d\n", | |
6383c0b3 AE |
4227 | prio, bp->prio_to_cos[prio]); |
4228 | } | |
4229 | ||
16a5fd92 | 4230 | /* Use this configuration to differentiate tc0 from other COSes |
6383c0b3 AE |
4231 | This can be used for ets or pfc, and save the effort of setting |
4232 | up a multio class queue disc or negotiating DCBX with a switch | |
4233 | netdev_set_prio_tc_map(dev, 0, 0); | |
94f05b0f | 4234 | DP(BNX2X_MSG_SP, "mapping priority %d to tc %d\n", 0, 0); |
6383c0b3 AE |
4235 | for (prio = 1; prio < 16; prio++) { |
4236 | netdev_set_prio_tc_map(dev, prio, 1); | |
94f05b0f | 4237 | DP(BNX2X_MSG_SP, "mapping priority %d to tc %d\n", prio, 1); |
6383c0b3 AE |
4238 | } */ |
4239 | ||
4240 | /* configure traffic class to transmission queue mapping */ | |
4241 | for (cos = 0; cos < bp->max_cos; cos++) { | |
4242 | count = BNX2X_NUM_ETH_QUEUES(bp); | |
65565884 | 4243 | offset = cos * BNX2X_NUM_NON_CNIC_QUEUES(bp); |
6383c0b3 | 4244 | netdev_set_tc_queue(dev, cos, count, offset); |
51c1a580 MS |
4245 | DP(BNX2X_MSG_SP | NETIF_MSG_IFUP, |
4246 | "mapping tc %d to offset %d count %d\n", | |
6383c0b3 AE |
4247 | cos, offset, count); |
4248 | } | |
4249 | ||
4250 | return 0; | |
4251 | } | |
4252 | ||
9f6c9258 DK |
4253 | /* called with rtnl_lock */ |
4254 | int bnx2x_change_mac_addr(struct net_device *dev, void *p) | |
4255 | { | |
4256 | struct sockaddr *addr = p; | |
4257 | struct bnx2x *bp = netdev_priv(dev); | |
619c5cb6 | 4258 | int rc = 0; |
9f6c9258 | 4259 | |
2e98ffc2 | 4260 | if (!is_valid_ether_addr(addr->sa_data)) { |
51c1a580 | 4261 | BNX2X_ERR("Requested MAC address is not valid\n"); |
614c76df | 4262 | return -EINVAL; |
51c1a580 | 4263 | } |
614c76df | 4264 | |
2e98ffc2 DK |
4265 | if (IS_MF_STORAGE_ONLY(bp)) { |
4266 | BNX2X_ERR("Can't change address on STORAGE ONLY function\n"); | |
9f6c9258 | 4267 | return -EINVAL; |
51c1a580 | 4268 | } |
9f6c9258 | 4269 | |
619c5cb6 VZ |
4270 | if (netif_running(dev)) { |
4271 | rc = bnx2x_set_eth_mac(bp, false); | |
4272 | if (rc) | |
4273 | return rc; | |
4274 | } | |
4275 | ||
9f6c9258 | 4276 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
619c5cb6 | 4277 | |
523224a3 | 4278 | if (netif_running(dev)) |
619c5cb6 | 4279 | rc = bnx2x_set_eth_mac(bp, true); |
9f6c9258 | 4280 | |
619c5cb6 | 4281 | return rc; |
9f6c9258 DK |
4282 | } |
4283 | ||
b3b83c3f DK |
4284 | static void bnx2x_free_fp_mem_at(struct bnx2x *bp, int fp_index) |
4285 | { | |
4286 | union host_hc_status_block *sb = &bnx2x_fp(bp, fp_index, status_blk); | |
4287 | struct bnx2x_fastpath *fp = &bp->fp[fp_index]; | |
6383c0b3 | 4288 | u8 cos; |
b3b83c3f DK |
4289 | |
4290 | /* Common */ | |
55c11941 | 4291 | |
b3b83c3f DK |
4292 | if (IS_FCOE_IDX(fp_index)) { |
4293 | memset(sb, 0, sizeof(union host_hc_status_block)); | |
4294 | fp->status_blk_mapping = 0; | |
b3b83c3f | 4295 | } else { |
b3b83c3f | 4296 | /* status blocks */ |
619c5cb6 | 4297 | if (!CHIP_IS_E1x(bp)) |
b3b83c3f DK |
4298 | BNX2X_PCI_FREE(sb->e2_sb, |
4299 | bnx2x_fp(bp, fp_index, | |
4300 | status_blk_mapping), | |
4301 | sizeof(struct host_hc_status_block_e2)); | |
4302 | else | |
4303 | BNX2X_PCI_FREE(sb->e1x_sb, | |
4304 | bnx2x_fp(bp, fp_index, | |
4305 | status_blk_mapping), | |
4306 | sizeof(struct host_hc_status_block_e1x)); | |
b3b83c3f | 4307 | } |
55c11941 | 4308 | |
b3b83c3f DK |
4309 | /* Rx */ |
4310 | if (!skip_rx_queue(bp, fp_index)) { | |
4311 | bnx2x_free_rx_bds(fp); | |
4312 | ||
4313 | /* fastpath rx rings: rx_buf rx_desc rx_comp */ | |
4314 | BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_buf_ring)); | |
4315 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_desc_ring), | |
4316 | bnx2x_fp(bp, fp_index, rx_desc_mapping), | |
4317 | sizeof(struct eth_rx_bd) * NUM_RX_BD); | |
4318 | ||
4319 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_comp_ring), | |
4320 | bnx2x_fp(bp, fp_index, rx_comp_mapping), | |
4321 | sizeof(struct eth_fast_path_rx_cqe) * | |
4322 | NUM_RCQ_BD); | |
4323 | ||
4324 | /* SGE ring */ | |
4325 | BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_page_ring)); | |
4326 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_sge_ring), | |
4327 | bnx2x_fp(bp, fp_index, rx_sge_mapping), | |
4328 | BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); | |
4329 | } | |
4330 | ||
4331 | /* Tx */ | |
4332 | if (!skip_tx_queue(bp, fp_index)) { | |
4333 | /* fastpath tx rings: tx_buf tx_desc */ | |
6383c0b3 | 4334 | for_each_cos_in_tx_queue(fp, cos) { |
65565884 | 4335 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
6383c0b3 | 4336 | |
51c1a580 | 4337 | DP(NETIF_MSG_IFDOWN, |
94f05b0f | 4338 | "freeing tx memory of fp %d cos %d cid %d\n", |
6383c0b3 AE |
4339 | fp_index, cos, txdata->cid); |
4340 | ||
4341 | BNX2X_FREE(txdata->tx_buf_ring); | |
4342 | BNX2X_PCI_FREE(txdata->tx_desc_ring, | |
4343 | txdata->tx_desc_mapping, | |
4344 | sizeof(union eth_tx_bd_types) * NUM_TX_BD); | |
4345 | } | |
b3b83c3f DK |
4346 | } |
4347 | /* end of fastpath */ | |
4348 | } | |
4349 | ||
a8f47eb7 | 4350 | static void bnx2x_free_fp_mem_cnic(struct bnx2x *bp) |
55c11941 MS |
4351 | { |
4352 | int i; | |
4353 | for_each_cnic_queue(bp, i) | |
4354 | bnx2x_free_fp_mem_at(bp, i); | |
4355 | } | |
4356 | ||
b3b83c3f DK |
4357 | void bnx2x_free_fp_mem(struct bnx2x *bp) |
4358 | { | |
4359 | int i; | |
55c11941 | 4360 | for_each_eth_queue(bp, i) |
b3b83c3f DK |
4361 | bnx2x_free_fp_mem_at(bp, i); |
4362 | } | |
4363 | ||
1191cb83 | 4364 | static void set_sb_shortcuts(struct bnx2x *bp, int index) |
b3b83c3f DK |
4365 | { |
4366 | union host_hc_status_block status_blk = bnx2x_fp(bp, index, status_blk); | |
619c5cb6 | 4367 | if (!CHIP_IS_E1x(bp)) { |
b3b83c3f DK |
4368 | bnx2x_fp(bp, index, sb_index_values) = |
4369 | (__le16 *)status_blk.e2_sb->sb.index_values; | |
4370 | bnx2x_fp(bp, index, sb_running_index) = | |
4371 | (__le16 *)status_blk.e2_sb->sb.running_index; | |
4372 | } else { | |
4373 | bnx2x_fp(bp, index, sb_index_values) = | |
4374 | (__le16 *)status_blk.e1x_sb->sb.index_values; | |
4375 | bnx2x_fp(bp, index, sb_running_index) = | |
4376 | (__le16 *)status_blk.e1x_sb->sb.running_index; | |
4377 | } | |
4378 | } | |
4379 | ||
1191cb83 ED |
4380 | /* Returns the number of actually allocated BDs */ |
4381 | static int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp, | |
4382 | int rx_ring_size) | |
4383 | { | |
4384 | struct bnx2x *bp = fp->bp; | |
4385 | u16 ring_prod, cqe_ring_prod; | |
4386 | int i, failure_cnt = 0; | |
4387 | ||
4388 | fp->rx_comp_cons = 0; | |
4389 | cqe_ring_prod = ring_prod = 0; | |
4390 | ||
4391 | /* This routine is called only during fo init so | |
4392 | * fp->eth_q_stats.rx_skb_alloc_failed = 0 | |
4393 | */ | |
4394 | for (i = 0; i < rx_ring_size; i++) { | |
996dedba | 4395 | if (bnx2x_alloc_rx_data(bp, fp, ring_prod, GFP_KERNEL) < 0) { |
1191cb83 ED |
4396 | failure_cnt++; |
4397 | continue; | |
4398 | } | |
4399 | ring_prod = NEXT_RX_IDX(ring_prod); | |
4400 | cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod); | |
4401 | WARN_ON(ring_prod <= (i - failure_cnt)); | |
4402 | } | |
4403 | ||
4404 | if (failure_cnt) | |
4405 | BNX2X_ERR("was only able to allocate %d rx skbs on queue[%d]\n", | |
4406 | i - failure_cnt, fp->index); | |
4407 | ||
4408 | fp->rx_bd_prod = ring_prod; | |
4409 | /* Limit the CQE producer by the CQE ring size */ | |
4410 | fp->rx_comp_prod = min_t(u16, NUM_RCQ_RINGS*RCQ_DESC_CNT, | |
4411 | cqe_ring_prod); | |
4412 | fp->rx_pkt = fp->rx_calls = 0; | |
4413 | ||
15192a8c | 4414 | bnx2x_fp_stats(bp, fp)->eth_q_stats.rx_skb_alloc_failed += failure_cnt; |
1191cb83 ED |
4415 | |
4416 | return i - failure_cnt; | |
4417 | } | |
4418 | ||
4419 | static void bnx2x_set_next_page_rx_cq(struct bnx2x_fastpath *fp) | |
4420 | { | |
4421 | int i; | |
4422 | ||
4423 | for (i = 1; i <= NUM_RCQ_RINGS; i++) { | |
4424 | struct eth_rx_cqe_next_page *nextpg; | |
4425 | ||
4426 | nextpg = (struct eth_rx_cqe_next_page *) | |
4427 | &fp->rx_comp_ring[RCQ_DESC_CNT * i - 1]; | |
4428 | nextpg->addr_hi = | |
4429 | cpu_to_le32(U64_HI(fp->rx_comp_mapping + | |
4430 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); | |
4431 | nextpg->addr_lo = | |
4432 | cpu_to_le32(U64_LO(fp->rx_comp_mapping + | |
4433 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); | |
4434 | } | |
4435 | } | |
4436 | ||
b3b83c3f DK |
4437 | static int bnx2x_alloc_fp_mem_at(struct bnx2x *bp, int index) |
4438 | { | |
4439 | union host_hc_status_block *sb; | |
4440 | struct bnx2x_fastpath *fp = &bp->fp[index]; | |
4441 | int ring_size = 0; | |
6383c0b3 | 4442 | u8 cos; |
c2188952 | 4443 | int rx_ring_size = 0; |
b3b83c3f | 4444 | |
2e98ffc2 | 4445 | if (!bp->rx_ring_size && IS_MF_STORAGE_ONLY(bp)) { |
614c76df DK |
4446 | rx_ring_size = MIN_RX_SIZE_NONTPA; |
4447 | bp->rx_ring_size = rx_ring_size; | |
55c11941 | 4448 | } else if (!bp->rx_ring_size) { |
c2188952 VZ |
4449 | rx_ring_size = MAX_RX_AVAIL/BNX2X_NUM_RX_QUEUES(bp); |
4450 | ||
065f8b92 YM |
4451 | if (CHIP_IS_E3(bp)) { |
4452 | u32 cfg = SHMEM_RD(bp, | |
4453 | dev_info.port_hw_config[BP_PORT(bp)]. | |
4454 | default_cfg); | |
4455 | ||
4456 | /* Decrease ring size for 1G functions */ | |
4457 | if ((cfg & PORT_HW_CFG_NET_SERDES_IF_MASK) == | |
4458 | PORT_HW_CFG_NET_SERDES_IF_SGMII) | |
4459 | rx_ring_size /= 10; | |
4460 | } | |
d760fc37 | 4461 | |
c2188952 VZ |
4462 | /* allocate at least number of buffers required by FW */ |
4463 | rx_ring_size = max_t(int, bp->disable_tpa ? MIN_RX_SIZE_NONTPA : | |
4464 | MIN_RX_SIZE_TPA, rx_ring_size); | |
4465 | ||
4466 | bp->rx_ring_size = rx_ring_size; | |
614c76df | 4467 | } else /* if rx_ring_size specified - use it */ |
c2188952 | 4468 | rx_ring_size = bp->rx_ring_size; |
b3b83c3f | 4469 | |
04c46736 YM |
4470 | DP(BNX2X_MSG_SP, "calculated rx_ring_size %d\n", rx_ring_size); |
4471 | ||
b3b83c3f DK |
4472 | /* Common */ |
4473 | sb = &bnx2x_fp(bp, index, status_blk); | |
55c11941 | 4474 | |
b3b83c3f | 4475 | if (!IS_FCOE_IDX(index)) { |
b3b83c3f | 4476 | /* status blocks */ |
cd2b0389 JP |
4477 | if (!CHIP_IS_E1x(bp)) { |
4478 | sb->e2_sb = BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, status_blk_mapping), | |
4479 | sizeof(struct host_hc_status_block_e2)); | |
4480 | if (!sb->e2_sb) | |
4481 | goto alloc_mem_err; | |
4482 | } else { | |
4483 | sb->e1x_sb = BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, status_blk_mapping), | |
4484 | sizeof(struct host_hc_status_block_e1x)); | |
4485 | if (!sb->e1x_sb) | |
4486 | goto alloc_mem_err; | |
4487 | } | |
b3b83c3f | 4488 | } |
8eef2af1 DK |
4489 | |
4490 | /* FCoE Queue uses Default SB and doesn't ACK the SB, thus no need to | |
4491 | * set shortcuts for it. | |
4492 | */ | |
4493 | if (!IS_FCOE_IDX(index)) | |
4494 | set_sb_shortcuts(bp, index); | |
b3b83c3f DK |
4495 | |
4496 | /* Tx */ | |
4497 | if (!skip_tx_queue(bp, index)) { | |
4498 | /* fastpath tx rings: tx_buf tx_desc */ | |
6383c0b3 | 4499 | for_each_cos_in_tx_queue(fp, cos) { |
65565884 | 4500 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
6383c0b3 | 4501 | |
51c1a580 MS |
4502 | DP(NETIF_MSG_IFUP, |
4503 | "allocating tx memory of fp %d cos %d\n", | |
6383c0b3 AE |
4504 | index, cos); |
4505 | ||
cd2b0389 JP |
4506 | txdata->tx_buf_ring = kcalloc(NUM_TX_BD, |
4507 | sizeof(struct sw_tx_bd), | |
4508 | GFP_KERNEL); | |
4509 | if (!txdata->tx_buf_ring) | |
4510 | goto alloc_mem_err; | |
4511 | txdata->tx_desc_ring = BNX2X_PCI_ALLOC(&txdata->tx_desc_mapping, | |
4512 | sizeof(union eth_tx_bd_types) * NUM_TX_BD); | |
4513 | if (!txdata->tx_desc_ring) | |
4514 | goto alloc_mem_err; | |
6383c0b3 | 4515 | } |
b3b83c3f DK |
4516 | } |
4517 | ||
4518 | /* Rx */ | |
4519 | if (!skip_rx_queue(bp, index)) { | |
4520 | /* fastpath rx rings: rx_buf rx_desc rx_comp */ | |
cd2b0389 JP |
4521 | bnx2x_fp(bp, index, rx_buf_ring) = |
4522 | kcalloc(NUM_RX_BD, sizeof(struct sw_rx_bd), GFP_KERNEL); | |
4523 | if (!bnx2x_fp(bp, index, rx_buf_ring)) | |
4524 | goto alloc_mem_err; | |
4525 | bnx2x_fp(bp, index, rx_desc_ring) = | |
4526 | BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, rx_desc_mapping), | |
4527 | sizeof(struct eth_rx_bd) * NUM_RX_BD); | |
4528 | if (!bnx2x_fp(bp, index, rx_desc_ring)) | |
4529 | goto alloc_mem_err; | |
b3b83c3f | 4530 | |
75b29459 | 4531 | /* Seed all CQEs by 1s */ |
cd2b0389 JP |
4532 | bnx2x_fp(bp, index, rx_comp_ring) = |
4533 | BNX2X_PCI_FALLOC(&bnx2x_fp(bp, index, rx_comp_mapping), | |
4534 | sizeof(struct eth_fast_path_rx_cqe) * NUM_RCQ_BD); | |
4535 | if (!bnx2x_fp(bp, index, rx_comp_ring)) | |
4536 | goto alloc_mem_err; | |
b3b83c3f DK |
4537 | |
4538 | /* SGE ring */ | |
cd2b0389 JP |
4539 | bnx2x_fp(bp, index, rx_page_ring) = |
4540 | kcalloc(NUM_RX_SGE, sizeof(struct sw_rx_page), | |
4541 | GFP_KERNEL); | |
4542 | if (!bnx2x_fp(bp, index, rx_page_ring)) | |
4543 | goto alloc_mem_err; | |
4544 | bnx2x_fp(bp, index, rx_sge_ring) = | |
4545 | BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, rx_sge_mapping), | |
4546 | BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); | |
4547 | if (!bnx2x_fp(bp, index, rx_sge_ring)) | |
4548 | goto alloc_mem_err; | |
b3b83c3f DK |
4549 | /* RX BD ring */ |
4550 | bnx2x_set_next_page_rx_bd(fp); | |
4551 | ||
4552 | /* CQ ring */ | |
4553 | bnx2x_set_next_page_rx_cq(fp); | |
4554 | ||
4555 | /* BDs */ | |
4556 | ring_size = bnx2x_alloc_rx_bds(fp, rx_ring_size); | |
4557 | if (ring_size < rx_ring_size) | |
4558 | goto alloc_mem_err; | |
4559 | } | |
4560 | ||
4561 | return 0; | |
4562 | ||
4563 | /* handles low memory cases */ | |
4564 | alloc_mem_err: | |
4565 | BNX2X_ERR("Unable to allocate full memory for queue %d (size %d)\n", | |
4566 | index, ring_size); | |
4567 | /* FW will drop all packets if queue is not big enough, | |
4568 | * In these cases we disable the queue | |
6383c0b3 | 4569 | * Min size is different for OOO, TPA and non-TPA queues |
b3b83c3f | 4570 | */ |
7e6b4d44 | 4571 | if (ring_size < (fp->mode == TPA_MODE_DISABLED ? |
eb722d7a | 4572 | MIN_RX_SIZE_NONTPA : MIN_RX_SIZE_TPA)) { |
b3b83c3f DK |
4573 | /* release memory allocated for this queue */ |
4574 | bnx2x_free_fp_mem_at(bp, index); | |
4575 | return -ENOMEM; | |
4576 | } | |
4577 | return 0; | |
4578 | } | |
4579 | ||
a8f47eb7 | 4580 | static int bnx2x_alloc_fp_mem_cnic(struct bnx2x *bp) |
55c11941 MS |
4581 | { |
4582 | if (!NO_FCOE(bp)) | |
4583 | /* FCoE */ | |
4584 | if (bnx2x_alloc_fp_mem_at(bp, FCOE_IDX(bp))) | |
4585 | /* we will fail load process instead of mark | |
4586 | * NO_FCOE_FLAG | |
4587 | */ | |
4588 | return -ENOMEM; | |
4589 | ||
4590 | return 0; | |
4591 | } | |
4592 | ||
a8f47eb7 | 4593 | static int bnx2x_alloc_fp_mem(struct bnx2x *bp) |
b3b83c3f DK |
4594 | { |
4595 | int i; | |
4596 | ||
55c11941 MS |
4597 | /* 1. Allocate FP for leading - fatal if error |
4598 | * 2. Allocate RSS - fix number of queues if error | |
b3b83c3f DK |
4599 | */ |
4600 | ||
4601 | /* leading */ | |
4602 | if (bnx2x_alloc_fp_mem_at(bp, 0)) | |
4603 | return -ENOMEM; | |
6383c0b3 | 4604 | |
b3b83c3f DK |
4605 | /* RSS */ |
4606 | for_each_nondefault_eth_queue(bp, i) | |
4607 | if (bnx2x_alloc_fp_mem_at(bp, i)) | |
4608 | break; | |
4609 | ||
4610 | /* handle memory failures */ | |
4611 | if (i != BNX2X_NUM_ETH_QUEUES(bp)) { | |
4612 | int delta = BNX2X_NUM_ETH_QUEUES(bp) - i; | |
4613 | ||
4614 | WARN_ON(delta < 0); | |
4864a16a | 4615 | bnx2x_shrink_eth_fp(bp, delta); |
55c11941 MS |
4616 | if (CNIC_SUPPORT(bp)) |
4617 | /* move non eth FPs next to last eth FP | |
4618 | * must be done in that order | |
4619 | * FCOE_IDX < FWD_IDX < OOO_IDX | |
4620 | */ | |
b3b83c3f | 4621 | |
55c11941 MS |
4622 | /* move FCoE fp even NO_FCOE_FLAG is on */ |
4623 | bnx2x_move_fp(bp, FCOE_IDX(bp), FCOE_IDX(bp) - delta); | |
4624 | bp->num_ethernet_queues -= delta; | |
4625 | bp->num_queues = bp->num_ethernet_queues + | |
4626 | bp->num_cnic_queues; | |
b3b83c3f DK |
4627 | BNX2X_ERR("Adjusted num of queues from %d to %d\n", |
4628 | bp->num_queues + delta, bp->num_queues); | |
4629 | } | |
4630 | ||
4631 | return 0; | |
4632 | } | |
d6214d7a | 4633 | |
523224a3 DK |
4634 | void bnx2x_free_mem_bp(struct bnx2x *bp) |
4635 | { | |
c3146eb6 DK |
4636 | int i; |
4637 | ||
4638 | for (i = 0; i < bp->fp_array_size; i++) | |
4639 | kfree(bp->fp[i].tpa_info); | |
523224a3 | 4640 | kfree(bp->fp); |
15192a8c BW |
4641 | kfree(bp->sp_objs); |
4642 | kfree(bp->fp_stats); | |
65565884 | 4643 | kfree(bp->bnx2x_txq); |
523224a3 DK |
4644 | kfree(bp->msix_table); |
4645 | kfree(bp->ilt); | |
4646 | } | |
4647 | ||
0329aba1 | 4648 | int bnx2x_alloc_mem_bp(struct bnx2x *bp) |
523224a3 DK |
4649 | { |
4650 | struct bnx2x_fastpath *fp; | |
4651 | struct msix_entry *tbl; | |
4652 | struct bnx2x_ilt *ilt; | |
6383c0b3 | 4653 | int msix_table_size = 0; |
55c11941 | 4654 | int fp_array_size, txq_array_size; |
15192a8c | 4655 | int i; |
6383c0b3 AE |
4656 | |
4657 | /* | |
4658 | * The biggest MSI-X table we might need is as a maximum number of fast | |
2de67439 | 4659 | * path IGU SBs plus default SB (for PF only). |
6383c0b3 | 4660 | */ |
1ab4434c AE |
4661 | msix_table_size = bp->igu_sb_cnt; |
4662 | if (IS_PF(bp)) | |
4663 | msix_table_size++; | |
4664 | BNX2X_DEV_INFO("msix_table_size %d\n", msix_table_size); | |
523224a3 | 4665 | |
6383c0b3 | 4666 | /* fp array: RSS plus CNIC related L2 queues */ |
55c11941 | 4667 | fp_array_size = BNX2X_MAX_RSS_COUNT(bp) + CNIC_SUPPORT(bp); |
c3146eb6 DK |
4668 | bp->fp_array_size = fp_array_size; |
4669 | BNX2X_DEV_INFO("fp_array_size %d\n", bp->fp_array_size); | |
15192a8c | 4670 | |
c3146eb6 | 4671 | fp = kcalloc(bp->fp_array_size, sizeof(*fp), GFP_KERNEL); |
523224a3 DK |
4672 | if (!fp) |
4673 | goto alloc_err; | |
c3146eb6 | 4674 | for (i = 0; i < bp->fp_array_size; i++) { |
15192a8c BW |
4675 | fp[i].tpa_info = |
4676 | kcalloc(ETH_MAX_AGGREGATION_QUEUES_E1H_E2, | |
4677 | sizeof(struct bnx2x_agg_info), GFP_KERNEL); | |
4678 | if (!(fp[i].tpa_info)) | |
4679 | goto alloc_err; | |
4680 | } | |
4681 | ||
523224a3 DK |
4682 | bp->fp = fp; |
4683 | ||
15192a8c | 4684 | /* allocate sp objs */ |
c3146eb6 | 4685 | bp->sp_objs = kcalloc(bp->fp_array_size, sizeof(struct bnx2x_sp_objs), |
15192a8c BW |
4686 | GFP_KERNEL); |
4687 | if (!bp->sp_objs) | |
4688 | goto alloc_err; | |
4689 | ||
4690 | /* allocate fp_stats */ | |
c3146eb6 | 4691 | bp->fp_stats = kcalloc(bp->fp_array_size, sizeof(struct bnx2x_fp_stats), |
15192a8c BW |
4692 | GFP_KERNEL); |
4693 | if (!bp->fp_stats) | |
4694 | goto alloc_err; | |
4695 | ||
65565884 | 4696 | /* Allocate memory for the transmission queues array */ |
55c11941 MS |
4697 | txq_array_size = |
4698 | BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS + CNIC_SUPPORT(bp); | |
4699 | BNX2X_DEV_INFO("txq_array_size %d", txq_array_size); | |
4700 | ||
4701 | bp->bnx2x_txq = kcalloc(txq_array_size, sizeof(struct bnx2x_fp_txdata), | |
4702 | GFP_KERNEL); | |
65565884 MS |
4703 | if (!bp->bnx2x_txq) |
4704 | goto alloc_err; | |
4705 | ||
523224a3 | 4706 | /* msix table */ |
01e23742 | 4707 | tbl = kcalloc(msix_table_size, sizeof(*tbl), GFP_KERNEL); |
523224a3 DK |
4708 | if (!tbl) |
4709 | goto alloc_err; | |
4710 | bp->msix_table = tbl; | |
4711 | ||
4712 | /* ilt */ | |
4713 | ilt = kzalloc(sizeof(*ilt), GFP_KERNEL); | |
4714 | if (!ilt) | |
4715 | goto alloc_err; | |
4716 | bp->ilt = ilt; | |
4717 | ||
4718 | return 0; | |
4719 | alloc_err: | |
4720 | bnx2x_free_mem_bp(bp); | |
4721 | return -ENOMEM; | |
523224a3 DK |
4722 | } |
4723 | ||
a9fccec7 | 4724 | int bnx2x_reload_if_running(struct net_device *dev) |
66371c44 MM |
4725 | { |
4726 | struct bnx2x *bp = netdev_priv(dev); | |
4727 | ||
4728 | if (unlikely(!netif_running(dev))) | |
4729 | return 0; | |
4730 | ||
5d07d868 | 4731 | bnx2x_nic_unload(bp, UNLOAD_NORMAL, true); |
66371c44 MM |
4732 | return bnx2x_nic_load(bp, LOAD_NORMAL); |
4733 | } | |
4734 | ||
1ac9e428 YR |
4735 | int bnx2x_get_cur_phy_idx(struct bnx2x *bp) |
4736 | { | |
4737 | u32 sel_phy_idx = 0; | |
4738 | if (bp->link_params.num_phys <= 1) | |
4739 | return INT_PHY; | |
4740 | ||
4741 | if (bp->link_vars.link_up) { | |
4742 | sel_phy_idx = EXT_PHY1; | |
4743 | /* In case link is SERDES, check if the EXT_PHY2 is the one */ | |
4744 | if ((bp->link_vars.link_status & LINK_STATUS_SERDES_LINK) && | |
4745 | (bp->link_params.phy[EXT_PHY2].supported & SUPPORTED_FIBRE)) | |
4746 | sel_phy_idx = EXT_PHY2; | |
4747 | } else { | |
4748 | ||
4749 | switch (bnx2x_phy_selection(&bp->link_params)) { | |
4750 | case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT: | |
4751 | case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY: | |
4752 | case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY: | |
4753 | sel_phy_idx = EXT_PHY1; | |
4754 | break; | |
4755 | case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY: | |
4756 | case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY: | |
4757 | sel_phy_idx = EXT_PHY2; | |
4758 | break; | |
4759 | } | |
4760 | } | |
4761 | ||
4762 | return sel_phy_idx; | |
1ac9e428 YR |
4763 | } |
4764 | int bnx2x_get_link_cfg_idx(struct bnx2x *bp) | |
4765 | { | |
4766 | u32 sel_phy_idx = bnx2x_get_cur_phy_idx(bp); | |
4767 | /* | |
2de67439 | 4768 | * The selected activated PHY is always after swapping (in case PHY |
1ac9e428 YR |
4769 | * swapping is enabled). So when swapping is enabled, we need to reverse |
4770 | * the configuration | |
4771 | */ | |
4772 | ||
4773 | if (bp->link_params.multi_phy_config & | |
4774 | PORT_HW_CFG_PHY_SWAPPED_ENABLED) { | |
4775 | if (sel_phy_idx == EXT_PHY1) | |
4776 | sel_phy_idx = EXT_PHY2; | |
4777 | else if (sel_phy_idx == EXT_PHY2) | |
4778 | sel_phy_idx = EXT_PHY1; | |
4779 | } | |
4780 | return LINK_CONFIG_IDX(sel_phy_idx); | |
4781 | } | |
4782 | ||
55c11941 | 4783 | #ifdef NETDEV_FCOE_WWNN |
bf61ee14 VZ |
4784 | int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type) |
4785 | { | |
4786 | struct bnx2x *bp = netdev_priv(dev); | |
4787 | struct cnic_eth_dev *cp = &bp->cnic_eth_dev; | |
4788 | ||
4789 | switch (type) { | |
4790 | case NETDEV_FCOE_WWNN: | |
4791 | *wwn = HILO_U64(cp->fcoe_wwn_node_name_hi, | |
4792 | cp->fcoe_wwn_node_name_lo); | |
4793 | break; | |
4794 | case NETDEV_FCOE_WWPN: | |
4795 | *wwn = HILO_U64(cp->fcoe_wwn_port_name_hi, | |
4796 | cp->fcoe_wwn_port_name_lo); | |
4797 | break; | |
4798 | default: | |
51c1a580 | 4799 | BNX2X_ERR("Wrong WWN type requested - %d\n", type); |
bf61ee14 VZ |
4800 | return -EINVAL; |
4801 | } | |
4802 | ||
4803 | return 0; | |
4804 | } | |
4805 | #endif | |
4806 | ||
9f6c9258 DK |
4807 | /* called with rtnl_lock */ |
4808 | int bnx2x_change_mtu(struct net_device *dev, int new_mtu) | |
4809 | { | |
4810 | struct bnx2x *bp = netdev_priv(dev); | |
9f6c9258 | 4811 | |
0650c0b8 YM |
4812 | if (pci_num_vf(bp->pdev)) { |
4813 | DP(BNX2X_MSG_IOV, "VFs are enabled, can not change MTU\n"); | |
4814 | return -EPERM; | |
4815 | } | |
4816 | ||
9f6c9258 | 4817 | if (bp->recovery_state != BNX2X_RECOVERY_DONE) { |
51c1a580 | 4818 | BNX2X_ERR("Can't perform change MTU during parity recovery\n"); |
9f6c9258 DK |
4819 | return -EAGAIN; |
4820 | } | |
4821 | ||
4822 | if ((new_mtu > ETH_MAX_JUMBO_PACKET_SIZE) || | |
51c1a580 MS |
4823 | ((new_mtu + ETH_HLEN) < ETH_MIN_PACKET_SIZE)) { |
4824 | BNX2X_ERR("Can't support requested MTU size\n"); | |
9f6c9258 | 4825 | return -EINVAL; |
51c1a580 | 4826 | } |
9f6c9258 DK |
4827 | |
4828 | /* This does not race with packet allocation | |
4829 | * because the actual alloc size is | |
4830 | * only updated as part of load | |
4831 | */ | |
4832 | dev->mtu = new_mtu; | |
4833 | ||
66371c44 MM |
4834 | return bnx2x_reload_if_running(dev); |
4835 | } | |
4836 | ||
c8f44aff | 4837 | netdev_features_t bnx2x_fix_features(struct net_device *dev, |
621b4d66 | 4838 | netdev_features_t features) |
66371c44 MM |
4839 | { |
4840 | struct bnx2x *bp = netdev_priv(dev); | |
4841 | ||
909d9faa YM |
4842 | if (pci_num_vf(bp->pdev)) { |
4843 | netdev_features_t changed = dev->features ^ features; | |
4844 | ||
4845 | /* Revert the requested changes in features if they | |
4846 | * would require internal reload of PF in bnx2x_set_features(). | |
4847 | */ | |
4848 | if (!(features & NETIF_F_RXCSUM) && !bp->disable_tpa) { | |
4849 | features &= ~NETIF_F_RXCSUM; | |
4850 | features |= dev->features & NETIF_F_RXCSUM; | |
4851 | } | |
4852 | ||
4853 | if (changed & NETIF_F_LOOPBACK) { | |
4854 | features &= ~NETIF_F_LOOPBACK; | |
4855 | features |= dev->features & NETIF_F_LOOPBACK; | |
4856 | } | |
4857 | } | |
4858 | ||
66371c44 | 4859 | /* TPA requires Rx CSUM offloading */ |
aebf6244 | 4860 | if (!(features & NETIF_F_RXCSUM)) { |
66371c44 | 4861 | features &= ~NETIF_F_LRO; |
621b4d66 DK |
4862 | features &= ~NETIF_F_GRO; |
4863 | } | |
66371c44 MM |
4864 | |
4865 | return features; | |
4866 | } | |
4867 | ||
c8f44aff | 4868 | int bnx2x_set_features(struct net_device *dev, netdev_features_t features) |
66371c44 MM |
4869 | { |
4870 | struct bnx2x *bp = netdev_priv(dev); | |
f8dcb5e3 | 4871 | netdev_features_t changes = features ^ dev->features; |
538dd2e3 | 4872 | bool bnx2x_reload = false; |
f8dcb5e3 | 4873 | int rc; |
621b4d66 | 4874 | |
909d9faa YM |
4875 | /* VFs or non SRIOV PFs should be able to change loopback feature */ |
4876 | if (!pci_num_vf(bp->pdev)) { | |
4877 | if (features & NETIF_F_LOOPBACK) { | |
4878 | if (bp->link_params.loopback_mode != LOOPBACK_BMAC) { | |
4879 | bp->link_params.loopback_mode = LOOPBACK_BMAC; | |
4880 | bnx2x_reload = true; | |
4881 | } | |
4882 | } else { | |
4883 | if (bp->link_params.loopback_mode != LOOPBACK_NONE) { | |
4884 | bp->link_params.loopback_mode = LOOPBACK_NONE; | |
4885 | bnx2x_reload = true; | |
4886 | } | |
538dd2e3 MB |
4887 | } |
4888 | } | |
4889 | ||
16a5fd92 | 4890 | /* if GRO is changed while LRO is enabled, don't force a reload */ |
f8dcb5e3 MS |
4891 | if ((changes & NETIF_F_GRO) && (features & NETIF_F_LRO)) |
4892 | changes &= ~NETIF_F_GRO; | |
8802f579 | 4893 | |
aebf6244 | 4894 | /* if GRO is changed while HW TPA is off, don't force a reload */ |
f8dcb5e3 MS |
4895 | if ((changes & NETIF_F_GRO) && bp->disable_tpa) |
4896 | changes &= ~NETIF_F_GRO; | |
aebf6244 | 4897 | |
8802f579 | 4898 | if (changes) |
538dd2e3 | 4899 | bnx2x_reload = true; |
8802f579 | 4900 | |
538dd2e3 | 4901 | if (bnx2x_reload) { |
f8dcb5e3 MS |
4902 | if (bp->recovery_state == BNX2X_RECOVERY_DONE) { |
4903 | dev->features = features; | |
4904 | rc = bnx2x_reload_if_running(dev); | |
4905 | return rc ? rc : 1; | |
4906 | } | |
66371c44 | 4907 | /* else: bnx2x_nic_load() will be called at end of recovery */ |
9f6c9258 DK |
4908 | } |
4909 | ||
66371c44 | 4910 | return 0; |
9f6c9258 DK |
4911 | } |
4912 | ||
4913 | void bnx2x_tx_timeout(struct net_device *dev) | |
4914 | { | |
4915 | struct bnx2x *bp = netdev_priv(dev); | |
4916 | ||
4917 | #ifdef BNX2X_STOP_ON_ERROR | |
4918 | if (!bp->panic) | |
4919 | bnx2x_panic(); | |
4920 | #endif | |
7be08a72 | 4921 | |
9f6c9258 | 4922 | /* This allows the netif to be shutdown gracefully before resetting */ |
230bb0f3 | 4923 | bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_TX_TIMEOUT, 0); |
9f6c9258 DK |
4924 | } |
4925 | ||
9f6c9258 DK |
4926 | int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state) |
4927 | { | |
4928 | struct net_device *dev = pci_get_drvdata(pdev); | |
4929 | struct bnx2x *bp; | |
4930 | ||
4931 | if (!dev) { | |
4932 | dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n"); | |
4933 | return -ENODEV; | |
4934 | } | |
4935 | bp = netdev_priv(dev); | |
4936 | ||
4937 | rtnl_lock(); | |
4938 | ||
4939 | pci_save_state(pdev); | |
4940 | ||
4941 | if (!netif_running(dev)) { | |
4942 | rtnl_unlock(); | |
4943 | return 0; | |
4944 | } | |
4945 | ||
4946 | netif_device_detach(dev); | |
4947 | ||
5d07d868 | 4948 | bnx2x_nic_unload(bp, UNLOAD_CLOSE, false); |
9f6c9258 DK |
4949 | |
4950 | bnx2x_set_power_state(bp, pci_choose_state(pdev, state)); | |
4951 | ||
4952 | rtnl_unlock(); | |
4953 | ||
4954 | return 0; | |
4955 | } | |
4956 | ||
4957 | int bnx2x_resume(struct pci_dev *pdev) | |
4958 | { | |
4959 | struct net_device *dev = pci_get_drvdata(pdev); | |
4960 | struct bnx2x *bp; | |
4961 | int rc; | |
4962 | ||
4963 | if (!dev) { | |
4964 | dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n"); | |
4965 | return -ENODEV; | |
4966 | } | |
4967 | bp = netdev_priv(dev); | |
4968 | ||
4969 | if (bp->recovery_state != BNX2X_RECOVERY_DONE) { | |
51c1a580 | 4970 | BNX2X_ERR("Handling parity error recovery. Try again later\n"); |
9f6c9258 DK |
4971 | return -EAGAIN; |
4972 | } | |
4973 | ||
4974 | rtnl_lock(); | |
4975 | ||
4976 | pci_restore_state(pdev); | |
4977 | ||
4978 | if (!netif_running(dev)) { | |
4979 | rtnl_unlock(); | |
4980 | return 0; | |
4981 | } | |
4982 | ||
4983 | bnx2x_set_power_state(bp, PCI_D0); | |
4984 | netif_device_attach(dev); | |
4985 | ||
4986 | rc = bnx2x_nic_load(bp, LOAD_OPEN); | |
4987 | ||
4988 | rtnl_unlock(); | |
4989 | ||
4990 | return rc; | |
4991 | } | |
619c5cb6 | 4992 | |
619c5cb6 VZ |
4993 | void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt, |
4994 | u32 cid) | |
4995 | { | |
b9871bcf AE |
4996 | if (!cxt) { |
4997 | BNX2X_ERR("bad context pointer %p\n", cxt); | |
4998 | return; | |
4999 | } | |
5000 | ||
619c5cb6 VZ |
5001 | /* ustorm cxt validation */ |
5002 | cxt->ustorm_ag_context.cdu_usage = | |
5003 | CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), | |
5004 | CDU_REGION_NUMBER_UCM_AG, ETH_CONNECTION_TYPE); | |
5005 | /* xcontext validation */ | |
5006 | cxt->xstorm_ag_context.cdu_reserved = | |
5007 | CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), | |
5008 | CDU_REGION_NUMBER_XCM_AG, ETH_CONNECTION_TYPE); | |
5009 | } | |
5010 | ||
1191cb83 ED |
5011 | static void storm_memset_hc_timeout(struct bnx2x *bp, u8 port, |
5012 | u8 fw_sb_id, u8 sb_index, | |
5013 | u8 ticks) | |
619c5cb6 | 5014 | { |
619c5cb6 VZ |
5015 | u32 addr = BAR_CSTRORM_INTMEM + |
5016 | CSTORM_STATUS_BLOCK_DATA_TIMEOUT_OFFSET(fw_sb_id, sb_index); | |
5017 | REG_WR8(bp, addr, ticks); | |
51c1a580 MS |
5018 | DP(NETIF_MSG_IFUP, |
5019 | "port %x fw_sb_id %d sb_index %d ticks %d\n", | |
5020 | port, fw_sb_id, sb_index, ticks); | |
619c5cb6 VZ |
5021 | } |
5022 | ||
1191cb83 ED |
5023 | static void storm_memset_hc_disable(struct bnx2x *bp, u8 port, |
5024 | u16 fw_sb_id, u8 sb_index, | |
5025 | u8 disable) | |
619c5cb6 VZ |
5026 | { |
5027 | u32 enable_flag = disable ? 0 : (1 << HC_INDEX_DATA_HC_ENABLED_SHIFT); | |
5028 | u32 addr = BAR_CSTRORM_INTMEM + | |
5029 | CSTORM_STATUS_BLOCK_DATA_FLAGS_OFFSET(fw_sb_id, sb_index); | |
0c14e5ce | 5030 | u8 flags = REG_RD8(bp, addr); |
619c5cb6 VZ |
5031 | /* clear and set */ |
5032 | flags &= ~HC_INDEX_DATA_HC_ENABLED; | |
5033 | flags |= enable_flag; | |
0c14e5ce | 5034 | REG_WR8(bp, addr, flags); |
51c1a580 MS |
5035 | DP(NETIF_MSG_IFUP, |
5036 | "port %x fw_sb_id %d sb_index %d disable %d\n", | |
5037 | port, fw_sb_id, sb_index, disable); | |
619c5cb6 VZ |
5038 | } |
5039 | ||
5040 | void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id, | |
5041 | u8 sb_index, u8 disable, u16 usec) | |
5042 | { | |
5043 | int port = BP_PORT(bp); | |
5044 | u8 ticks = usec / BNX2X_BTR; | |
5045 | ||
5046 | storm_memset_hc_timeout(bp, port, fw_sb_id, sb_index, ticks); | |
5047 | ||
5048 | disable = disable ? 1 : (usec ? 0 : 1); | |
5049 | storm_memset_hc_disable(bp, port, fw_sb_id, sb_index, disable); | |
5050 | } | |
230bb0f3 YM |
5051 | |
5052 | void bnx2x_schedule_sp_rtnl(struct bnx2x *bp, enum sp_rtnl_flag flag, | |
5053 | u32 verbose) | |
5054 | { | |
4e857c58 | 5055 | smp_mb__before_atomic(); |
230bb0f3 | 5056 | set_bit(flag, &bp->sp_rtnl_state); |
4e857c58 | 5057 | smp_mb__after_atomic(); |
230bb0f3 YM |
5058 | DP((BNX2X_MSG_SP | verbose), "Scheduling sp_rtnl task [Flag: %d]\n", |
5059 | flag); | |
5060 | schedule_delayed_work(&bp->sp_rtnl_task, 0); | |
5061 | } | |
5062 | EXPORT_SYMBOL(bnx2x_schedule_sp_rtnl); |