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1 | /* | |
2 | * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved. | |
3 | * | |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | */ | |
32 | ||
33 | #include <net/tc_act/tc_gact.h> | |
34 | #include <net/pkt_cls.h> | |
35 | #include <linux/mlx5/fs.h> | |
36 | #include <net/vxlan.h> | |
37 | #include <linux/bpf.h> | |
38 | #include "eswitch.h" | |
39 | #include "en.h" | |
40 | #include "en_tc.h" | |
41 | #include "en_rep.h" | |
42 | #include "en_accel/ipsec.h" | |
43 | #include "en_accel/ipsec_rxtx.h" | |
44 | #include "accel/ipsec.h" | |
45 | #include "vxlan.h" | |
46 | ||
47 | struct mlx5e_rq_param { | |
48 | u32 rqc[MLX5_ST_SZ_DW(rqc)]; | |
49 | struct mlx5_wq_param wq; | |
50 | }; | |
51 | ||
52 | struct mlx5e_sq_param { | |
53 | u32 sqc[MLX5_ST_SZ_DW(sqc)]; | |
54 | struct mlx5_wq_param wq; | |
55 | }; | |
56 | ||
57 | struct mlx5e_cq_param { | |
58 | u32 cqc[MLX5_ST_SZ_DW(cqc)]; | |
59 | struct mlx5_wq_param wq; | |
60 | u16 eq_ix; | |
61 | u8 cq_period_mode; | |
62 | }; | |
63 | ||
64 | struct mlx5e_channel_param { | |
65 | struct mlx5e_rq_param rq; | |
66 | struct mlx5e_sq_param sq; | |
67 | struct mlx5e_sq_param xdp_sq; | |
68 | struct mlx5e_sq_param icosq; | |
69 | struct mlx5e_cq_param rx_cq; | |
70 | struct mlx5e_cq_param tx_cq; | |
71 | struct mlx5e_cq_param icosq_cq; | |
72 | }; | |
73 | ||
74 | static bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev) | |
75 | { | |
76 | return MLX5_CAP_GEN(mdev, striding_rq) && | |
77 | MLX5_CAP_GEN(mdev, umr_ptr_rlky) && | |
78 | MLX5_CAP_ETH(mdev, reg_umr_sq); | |
79 | } | |
80 | ||
81 | void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev, | |
82 | struct mlx5e_params *params, u8 rq_type) | |
83 | { | |
84 | params->rq_wq_type = rq_type; | |
85 | params->lro_wqe_sz = MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ; | |
86 | switch (params->rq_wq_type) { | |
87 | case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ: | |
88 | params->log_rq_size = is_kdump_kernel() ? | |
89 | MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW : | |
90 | MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE_MPW; | |
91 | params->mpwqe_log_stride_sz = MLX5E_MPWQE_STRIDE_SZ(mdev, | |
92 | MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS)); | |
93 | params->mpwqe_log_num_strides = MLX5_MPWRQ_LOG_WQE_SZ - | |
94 | params->mpwqe_log_stride_sz; | |
95 | break; | |
96 | default: /* MLX5_WQ_TYPE_LINKED_LIST */ | |
97 | params->log_rq_size = is_kdump_kernel() ? | |
98 | MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE : | |
99 | MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE; | |
100 | params->rq_headroom = params->xdp_prog ? | |
101 | XDP_PACKET_HEADROOM : MLX5_RX_HEADROOM; | |
102 | params->rq_headroom += NET_IP_ALIGN; | |
103 | ||
104 | /* Extra room needed for build_skb */ | |
105 | params->lro_wqe_sz -= params->rq_headroom + | |
106 | SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); | |
107 | } | |
108 | ||
109 | mlx5_core_info(mdev, "MLX5E: StrdRq(%d) RqSz(%ld) StrdSz(%ld) RxCqeCmprss(%d)\n", | |
110 | params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ, | |
111 | BIT(params->log_rq_size), | |
112 | BIT(params->mpwqe_log_stride_sz), | |
113 | MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS)); | |
114 | } | |
115 | ||
116 | static void mlx5e_set_rq_params(struct mlx5_core_dev *mdev, | |
117 | struct mlx5e_params *params) | |
118 | { | |
119 | u8 rq_type = mlx5e_check_fragmented_striding_rq_cap(mdev) && | |
120 | !params->xdp_prog && !MLX5_IPSEC_DEV(mdev) ? | |
121 | MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ : | |
122 | MLX5_WQ_TYPE_LINKED_LIST; | |
123 | mlx5e_init_rq_type_params(mdev, params, rq_type); | |
124 | } | |
125 | ||
126 | static void mlx5e_update_carrier(struct mlx5e_priv *priv) | |
127 | { | |
128 | struct mlx5_core_dev *mdev = priv->mdev; | |
129 | u8 port_state; | |
130 | ||
131 | port_state = mlx5_query_vport_state(mdev, | |
132 | MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT, | |
133 | 0); | |
134 | ||
135 | if (port_state == VPORT_STATE_UP) { | |
136 | netdev_info(priv->netdev, "Link up\n"); | |
137 | netif_carrier_on(priv->netdev); | |
138 | } else { | |
139 | netdev_info(priv->netdev, "Link down\n"); | |
140 | netif_carrier_off(priv->netdev); | |
141 | } | |
142 | } | |
143 | ||
144 | static void mlx5e_update_carrier_work(struct work_struct *work) | |
145 | { | |
146 | struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv, | |
147 | update_carrier_work); | |
148 | ||
149 | mutex_lock(&priv->state_lock); | |
150 | if (test_bit(MLX5E_STATE_OPENED, &priv->state)) | |
151 | if (priv->profile->update_carrier) | |
152 | priv->profile->update_carrier(priv); | |
153 | mutex_unlock(&priv->state_lock); | |
154 | } | |
155 | ||
156 | static void mlx5e_tx_timeout_work(struct work_struct *work) | |
157 | { | |
158 | struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv, | |
159 | tx_timeout_work); | |
160 | int err; | |
161 | ||
162 | rtnl_lock(); | |
163 | mutex_lock(&priv->state_lock); | |
164 | if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) | |
165 | goto unlock; | |
166 | mlx5e_close_locked(priv->netdev); | |
167 | err = mlx5e_open_locked(priv->netdev); | |
168 | if (err) | |
169 | netdev_err(priv->netdev, "mlx5e_open_locked failed recovering from a tx_timeout, err(%d).\n", | |
170 | err); | |
171 | unlock: | |
172 | mutex_unlock(&priv->state_lock); | |
173 | rtnl_unlock(); | |
174 | } | |
175 | ||
176 | static void mlx5e_update_sw_counters(struct mlx5e_priv *priv) | |
177 | { | |
178 | struct mlx5e_sw_stats temp, *s = &temp; | |
179 | struct mlx5e_rq_stats *rq_stats; | |
180 | struct mlx5e_sq_stats *sq_stats; | |
181 | int i, j; | |
182 | ||
183 | memset(s, 0, sizeof(*s)); | |
184 | for (i = 0; i < priv->channels.num; i++) { | |
185 | struct mlx5e_channel *c = priv->channels.c[i]; | |
186 | ||
187 | rq_stats = &c->rq.stats; | |
188 | ||
189 | s->rx_packets += rq_stats->packets; | |
190 | s->rx_bytes += rq_stats->bytes; | |
191 | s->rx_lro_packets += rq_stats->lro_packets; | |
192 | s->rx_lro_bytes += rq_stats->lro_bytes; | |
193 | s->rx_ecn_mark += rq_stats->ecn_mark; | |
194 | s->rx_removed_vlan_packets += rq_stats->removed_vlan_packets; | |
195 | s->rx_csum_none += rq_stats->csum_none; | |
196 | s->rx_csum_complete += rq_stats->csum_complete; | |
197 | s->rx_csum_complete_tail += rq_stats->csum_complete_tail; | |
198 | s->rx_csum_complete_tail_slow += rq_stats->csum_complete_tail_slow; | |
199 | s->rx_csum_unnecessary += rq_stats->csum_unnecessary; | |
200 | s->rx_csum_unnecessary_inner += rq_stats->csum_unnecessary_inner; | |
201 | s->rx_xdp_drop += rq_stats->xdp_drop; | |
202 | s->rx_xdp_tx += rq_stats->xdp_tx; | |
203 | s->rx_xdp_tx_full += rq_stats->xdp_tx_full; | |
204 | s->rx_wqe_err += rq_stats->wqe_err; | |
205 | s->rx_mpwqe_filler += rq_stats->mpwqe_filler; | |
206 | s->rx_buff_alloc_err += rq_stats->buff_alloc_err; | |
207 | s->rx_cqe_compress_blks += rq_stats->cqe_compress_blks; | |
208 | s->rx_cqe_compress_pkts += rq_stats->cqe_compress_pkts; | |
209 | s->rx_page_reuse += rq_stats->page_reuse; | |
210 | s->rx_cache_reuse += rq_stats->cache_reuse; | |
211 | s->rx_cache_full += rq_stats->cache_full; | |
212 | s->rx_cache_empty += rq_stats->cache_empty; | |
213 | s->rx_cache_busy += rq_stats->cache_busy; | |
214 | s->rx_cache_waive += rq_stats->cache_waive; | |
215 | ||
216 | for (j = 0; j < priv->channels.params.num_tc; j++) { | |
217 | sq_stats = &c->sq[j].stats; | |
218 | ||
219 | s->tx_packets += sq_stats->packets; | |
220 | s->tx_bytes += sq_stats->bytes; | |
221 | s->tx_tso_packets += sq_stats->tso_packets; | |
222 | s->tx_tso_bytes += sq_stats->tso_bytes; | |
223 | s->tx_tso_inner_packets += sq_stats->tso_inner_packets; | |
224 | s->tx_tso_inner_bytes += sq_stats->tso_inner_bytes; | |
225 | s->tx_added_vlan_packets += sq_stats->added_vlan_packets; | |
226 | s->tx_queue_stopped += sq_stats->stopped; | |
227 | s->tx_queue_wake += sq_stats->wake; | |
228 | s->tx_queue_dropped += sq_stats->dropped; | |
229 | s->tx_xmit_more += sq_stats->xmit_more; | |
230 | s->tx_csum_partial_inner += sq_stats->csum_partial_inner; | |
231 | s->tx_csum_none += sq_stats->csum_none; | |
232 | s->tx_csum_partial += sq_stats->csum_partial; | |
233 | } | |
234 | } | |
235 | ||
236 | s->link_down_events_phy = MLX5_GET(ppcnt_reg, | |
237 | priv->stats.pport.phy_counters, | |
238 | counter_set.phys_layer_cntrs.link_down_events); | |
239 | memcpy(&priv->stats.sw, s, sizeof(*s)); | |
240 | } | |
241 | ||
242 | static void mlx5e_update_vport_counters(struct mlx5e_priv *priv) | |
243 | { | |
244 | int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out); | |
245 | u32 *out = (u32 *)priv->stats.vport.query_vport_out; | |
246 | u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)] = {0}; | |
247 | struct mlx5_core_dev *mdev = priv->mdev; | |
248 | ||
249 | MLX5_SET(query_vport_counter_in, in, opcode, | |
250 | MLX5_CMD_OP_QUERY_VPORT_COUNTER); | |
251 | MLX5_SET(query_vport_counter_in, in, op_mod, 0); | |
252 | MLX5_SET(query_vport_counter_in, in, other_vport, 0); | |
253 | ||
254 | mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen); | |
255 | } | |
256 | ||
257 | static void mlx5e_update_pport_counters(struct mlx5e_priv *priv, bool full) | |
258 | { | |
259 | struct mlx5e_pport_stats *pstats = &priv->stats.pport; | |
260 | struct mlx5_core_dev *mdev = priv->mdev; | |
261 | u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {0}; | |
262 | int sz = MLX5_ST_SZ_BYTES(ppcnt_reg); | |
263 | int prio; | |
264 | void *out; | |
265 | ||
266 | MLX5_SET(ppcnt_reg, in, local_port, 1); | |
267 | ||
268 | out = pstats->IEEE_802_3_counters; | |
269 | MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP); | |
270 | mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); | |
271 | ||
272 | if (!full) | |
273 | return; | |
274 | ||
275 | out = pstats->RFC_2863_counters; | |
276 | MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP); | |
277 | mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); | |
278 | ||
279 | out = pstats->RFC_2819_counters; | |
280 | MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP); | |
281 | mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); | |
282 | ||
283 | out = pstats->phy_counters; | |
284 | MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP); | |
285 | mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); | |
286 | ||
287 | if (MLX5_CAP_PCAM_FEATURE(mdev, ppcnt_statistical_group)) { | |
288 | out = pstats->phy_statistical_counters; | |
289 | MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP); | |
290 | mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); | |
291 | } | |
292 | ||
293 | if (MLX5_CAP_PCAM_FEATURE(mdev, rx_buffer_fullness_counters)) { | |
294 | out = pstats->eth_ext_counters; | |
295 | MLX5_SET(ppcnt_reg, in, grp, MLX5_ETHERNET_EXTENDED_COUNTERS_GROUP); | |
296 | mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0); | |
297 | } | |
298 | ||
299 | MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP); | |
300 | for (prio = 0; prio < NUM_PPORT_PRIO; prio++) { | |
301 | out = pstats->per_prio_counters[prio]; | |
302 | MLX5_SET(ppcnt_reg, in, prio_tc, prio); | |
303 | mlx5_core_access_reg(mdev, in, sz, out, sz, | |
304 | MLX5_REG_PPCNT, 0, 0); | |
305 | } | |
306 | } | |
307 | ||
308 | static void mlx5e_update_q_counter(struct mlx5e_priv *priv) | |
309 | { | |
310 | struct mlx5e_qcounter_stats *qcnt = &priv->stats.qcnt; | |
311 | u32 out[MLX5_ST_SZ_DW(query_q_counter_out)]; | |
312 | int err; | |
313 | ||
314 | if (!priv->q_counter) | |
315 | return; | |
316 | ||
317 | err = mlx5_core_query_q_counter(priv->mdev, priv->q_counter, 0, out, sizeof(out)); | |
318 | if (err) | |
319 | return; | |
320 | ||
321 | qcnt->rx_out_of_buffer = MLX5_GET(query_q_counter_out, out, out_of_buffer); | |
322 | } | |
323 | ||
324 | static void mlx5e_update_pcie_counters(struct mlx5e_priv *priv) | |
325 | { | |
326 | struct mlx5e_pcie_stats *pcie_stats = &priv->stats.pcie; | |
327 | struct mlx5_core_dev *mdev = priv->mdev; | |
328 | u32 in[MLX5_ST_SZ_DW(mpcnt_reg)] = {0}; | |
329 | int sz = MLX5_ST_SZ_BYTES(mpcnt_reg); | |
330 | void *out; | |
331 | ||
332 | if (!MLX5_CAP_MCAM_FEATURE(mdev, pcie_performance_group)) | |
333 | return; | |
334 | ||
335 | out = pcie_stats->pcie_perf_counters; | |
336 | MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_PERFORMANCE_COUNTERS_GROUP); | |
337 | mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0); | |
338 | } | |
339 | ||
340 | void mlx5e_update_stats(struct mlx5e_priv *priv, bool full) | |
341 | { | |
342 | if (full) { | |
343 | mlx5e_update_pcie_counters(priv); | |
344 | mlx5e_ipsec_update_stats(priv); | |
345 | } | |
346 | mlx5e_update_pport_counters(priv, full); | |
347 | mlx5e_update_vport_counters(priv); | |
348 | mlx5e_update_q_counter(priv); | |
349 | mlx5e_update_sw_counters(priv); | |
350 | } | |
351 | ||
352 | static void mlx5e_update_ndo_stats(struct mlx5e_priv *priv) | |
353 | { | |
354 | mlx5e_update_stats(priv, false); | |
355 | } | |
356 | ||
357 | void mlx5e_update_stats_work(struct work_struct *work) | |
358 | { | |
359 | struct delayed_work *dwork = to_delayed_work(work); | |
360 | struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv, | |
361 | update_stats_work); | |
362 | mutex_lock(&priv->state_lock); | |
363 | if (test_bit(MLX5E_STATE_OPENED, &priv->state)) { | |
364 | priv->profile->update_stats(priv); | |
365 | queue_delayed_work(priv->wq, dwork, | |
366 | msecs_to_jiffies(MLX5E_UPDATE_STATS_INTERVAL)); | |
367 | } | |
368 | mutex_unlock(&priv->state_lock); | |
369 | } | |
370 | ||
371 | static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv, | |
372 | enum mlx5_dev_event event, unsigned long param) | |
373 | { | |
374 | struct mlx5e_priv *priv = vpriv; | |
375 | ||
376 | if (!test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED, &priv->state)) | |
377 | return; | |
378 | ||
379 | switch (event) { | |
380 | case MLX5_DEV_EVENT_PORT_UP: | |
381 | case MLX5_DEV_EVENT_PORT_DOWN: | |
382 | queue_work(priv->wq, &priv->update_carrier_work); | |
383 | break; | |
384 | default: | |
385 | break; | |
386 | } | |
387 | } | |
388 | ||
389 | static void mlx5e_enable_async_events(struct mlx5e_priv *priv) | |
390 | { | |
391 | set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED, &priv->state); | |
392 | } | |
393 | ||
394 | static void mlx5e_disable_async_events(struct mlx5e_priv *priv) | |
395 | { | |
396 | clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED, &priv->state); | |
397 | synchronize_irq(pci_irq_vector(priv->mdev->pdev, MLX5_EQ_VEC_ASYNC)); | |
398 | } | |
399 | ||
400 | static inline int mlx5e_get_wqe_mtt_sz(void) | |
401 | { | |
402 | /* UMR copies MTTs in units of MLX5_UMR_MTT_ALIGNMENT bytes. | |
403 | * To avoid copying garbage after the mtt array, we allocate | |
404 | * a little more. | |
405 | */ | |
406 | return ALIGN(MLX5_MPWRQ_PAGES_PER_WQE * sizeof(__be64), | |
407 | MLX5_UMR_MTT_ALIGNMENT); | |
408 | } | |
409 | ||
410 | static inline void mlx5e_build_umr_wqe(struct mlx5e_rq *rq, | |
411 | struct mlx5e_icosq *sq, | |
412 | struct mlx5e_umr_wqe *wqe, | |
413 | u16 ix) | |
414 | { | |
415 | struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl; | |
416 | struct mlx5_wqe_umr_ctrl_seg *ucseg = &wqe->uctrl; | |
417 | struct mlx5_wqe_data_seg *dseg = &wqe->data; | |
418 | struct mlx5e_mpw_info *wi = &rq->mpwqe.info[ix]; | |
419 | u8 ds_cnt = DIV_ROUND_UP(sizeof(*wqe), MLX5_SEND_WQE_DS); | |
420 | u32 umr_wqe_mtt_offset = mlx5e_get_wqe_mtt_offset(rq, ix); | |
421 | ||
422 | cseg->qpn_ds = cpu_to_be32((sq->sqn << MLX5_WQE_CTRL_QPN_SHIFT) | | |
423 | ds_cnt); | |
424 | cseg->fm_ce_se = MLX5_WQE_CTRL_CQ_UPDATE; | |
425 | cseg->imm = rq->mkey_be; | |
426 | ||
427 | ucseg->flags = MLX5_UMR_TRANSLATION_OFFSET_EN; | |
428 | ucseg->xlt_octowords = | |
429 | cpu_to_be16(MLX5_MTT_OCTW(MLX5_MPWRQ_PAGES_PER_WQE)); | |
430 | ucseg->bsf_octowords = | |
431 | cpu_to_be16(MLX5_MTT_OCTW(umr_wqe_mtt_offset)); | |
432 | ucseg->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE); | |
433 | ||
434 | dseg->lkey = sq->mkey_be; | |
435 | dseg->addr = cpu_to_be64(wi->umr.mtt_addr); | |
436 | } | |
437 | ||
438 | static int mlx5e_rq_alloc_mpwqe_info(struct mlx5e_rq *rq, | |
439 | struct mlx5e_channel *c) | |
440 | { | |
441 | int wq_sz = mlx5_wq_ll_get_size(&rq->wq); | |
442 | int mtt_sz = mlx5e_get_wqe_mtt_sz(); | |
443 | int mtt_alloc = mtt_sz + MLX5_UMR_ALIGN - 1; | |
444 | int i; | |
445 | ||
446 | rq->mpwqe.info = kzalloc_node(wq_sz * sizeof(*rq->mpwqe.info), | |
447 | GFP_KERNEL, cpu_to_node(c->cpu)); | |
448 | if (!rq->mpwqe.info) | |
449 | goto err_out; | |
450 | ||
451 | /* We allocate more than mtt_sz as we will align the pointer */ | |
452 | rq->mpwqe.mtt_no_align = kzalloc_node(mtt_alloc * wq_sz, GFP_KERNEL, | |
453 | cpu_to_node(c->cpu)); | |
454 | if (unlikely(!rq->mpwqe.mtt_no_align)) | |
455 | goto err_free_wqe_info; | |
456 | ||
457 | for (i = 0; i < wq_sz; i++) { | |
458 | struct mlx5e_mpw_info *wi = &rq->mpwqe.info[i]; | |
459 | ||
460 | wi->umr.mtt = PTR_ALIGN(rq->mpwqe.mtt_no_align + i * mtt_alloc, | |
461 | MLX5_UMR_ALIGN); | |
462 | wi->umr.mtt_addr = dma_map_single(c->pdev, wi->umr.mtt, mtt_sz, | |
463 | PCI_DMA_TODEVICE); | |
464 | if (unlikely(dma_mapping_error(c->pdev, wi->umr.mtt_addr))) | |
465 | goto err_unmap_mtts; | |
466 | ||
467 | mlx5e_build_umr_wqe(rq, &c->icosq, &wi->umr.wqe, i); | |
468 | } | |
469 | ||
470 | return 0; | |
471 | ||
472 | err_unmap_mtts: | |
473 | while (--i >= 0) { | |
474 | struct mlx5e_mpw_info *wi = &rq->mpwqe.info[i]; | |
475 | ||
476 | dma_unmap_single(c->pdev, wi->umr.mtt_addr, mtt_sz, | |
477 | PCI_DMA_TODEVICE); | |
478 | } | |
479 | kfree(rq->mpwqe.mtt_no_align); | |
480 | err_free_wqe_info: | |
481 | kfree(rq->mpwqe.info); | |
482 | ||
483 | err_out: | |
484 | return -ENOMEM; | |
485 | } | |
486 | ||
487 | static void mlx5e_rq_free_mpwqe_info(struct mlx5e_rq *rq) | |
488 | { | |
489 | int wq_sz = mlx5_wq_ll_get_size(&rq->wq); | |
490 | int mtt_sz = mlx5e_get_wqe_mtt_sz(); | |
491 | int i; | |
492 | ||
493 | for (i = 0; i < wq_sz; i++) { | |
494 | struct mlx5e_mpw_info *wi = &rq->mpwqe.info[i]; | |
495 | ||
496 | dma_unmap_single(rq->pdev, wi->umr.mtt_addr, mtt_sz, | |
497 | PCI_DMA_TODEVICE); | |
498 | } | |
499 | kfree(rq->mpwqe.mtt_no_align); | |
500 | kfree(rq->mpwqe.info); | |
501 | } | |
502 | ||
503 | static int mlx5e_create_umr_mkey(struct mlx5_core_dev *mdev, | |
504 | u64 npages, u8 page_shift, | |
505 | struct mlx5_core_mkey *umr_mkey) | |
506 | { | |
507 | int inlen = MLX5_ST_SZ_BYTES(create_mkey_in); | |
508 | void *mkc; | |
509 | u32 *in; | |
510 | int err; | |
511 | ||
512 | if (!MLX5E_VALID_NUM_MTTS(npages)) | |
513 | return -EINVAL; | |
514 | ||
515 | in = kvzalloc(inlen, GFP_KERNEL); | |
516 | if (!in) | |
517 | return -ENOMEM; | |
518 | ||
519 | mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry); | |
520 | ||
521 | MLX5_SET(mkc, mkc, free, 1); | |
522 | MLX5_SET(mkc, mkc, umr_en, 1); | |
523 | MLX5_SET(mkc, mkc, lw, 1); | |
524 | MLX5_SET(mkc, mkc, lr, 1); | |
525 | MLX5_SET(mkc, mkc, access_mode, MLX5_MKC_ACCESS_MODE_MTT); | |
526 | ||
527 | MLX5_SET(mkc, mkc, qpn, 0xffffff); | |
528 | MLX5_SET(mkc, mkc, pd, mdev->mlx5e_res.pdn); | |
529 | MLX5_SET64(mkc, mkc, len, npages << page_shift); | |
530 | MLX5_SET(mkc, mkc, translations_octword_size, | |
531 | MLX5_MTT_OCTW(npages)); | |
532 | MLX5_SET(mkc, mkc, log_page_size, page_shift); | |
533 | ||
534 | err = mlx5_core_create_mkey(mdev, umr_mkey, in, inlen); | |
535 | ||
536 | kvfree(in); | |
537 | return err; | |
538 | } | |
539 | ||
540 | static int mlx5e_create_rq_umr_mkey(struct mlx5_core_dev *mdev, struct mlx5e_rq *rq) | |
541 | { | |
542 | u64 num_mtts = MLX5E_REQUIRED_MTTS(mlx5_wq_ll_get_size(&rq->wq)); | |
543 | ||
544 | return mlx5e_create_umr_mkey(mdev, num_mtts, PAGE_SHIFT, &rq->umr_mkey); | |
545 | } | |
546 | ||
547 | static int mlx5e_alloc_rq(struct mlx5e_channel *c, | |
548 | struct mlx5e_params *params, | |
549 | struct mlx5e_rq_param *rqp, | |
550 | struct mlx5e_rq *rq) | |
551 | { | |
552 | struct mlx5_core_dev *mdev = c->mdev; | |
553 | void *rqc = rqp->rqc; | |
554 | void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq); | |
555 | u32 byte_count; | |
556 | int npages; | |
557 | int wq_sz; | |
558 | int err; | |
559 | int i; | |
560 | ||
561 | rqp->wq.db_numa_node = cpu_to_node(c->cpu); | |
562 | ||
563 | err = mlx5_wq_ll_create(mdev, &rqp->wq, rqc_wq, &rq->wq, | |
564 | &rq->wq_ctrl); | |
565 | if (err) | |
566 | return err; | |
567 | ||
568 | rq->wq.db = &rq->wq.db[MLX5_RCV_DBR]; | |
569 | ||
570 | wq_sz = mlx5_wq_ll_get_size(&rq->wq); | |
571 | ||
572 | rq->wq_type = params->rq_wq_type; | |
573 | rq->pdev = c->pdev; | |
574 | rq->netdev = c->netdev; | |
575 | rq->tstamp = c->tstamp; | |
576 | rq->clock = &mdev->clock; | |
577 | rq->channel = c; | |
578 | rq->ix = c->ix; | |
579 | rq->mdev = mdev; | |
580 | ||
581 | rq->xdp_prog = params->xdp_prog ? bpf_prog_inc(params->xdp_prog) : NULL; | |
582 | if (IS_ERR(rq->xdp_prog)) { | |
583 | err = PTR_ERR(rq->xdp_prog); | |
584 | rq->xdp_prog = NULL; | |
585 | goto err_rq_wq_destroy; | |
586 | } | |
587 | ||
588 | rq->buff.map_dir = rq->xdp_prog ? DMA_BIDIRECTIONAL : DMA_FROM_DEVICE; | |
589 | rq->buff.headroom = params->rq_headroom; | |
590 | ||
591 | switch (rq->wq_type) { | |
592 | case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ: | |
593 | ||
594 | rq->post_wqes = mlx5e_post_rx_mpwqes; | |
595 | rq->dealloc_wqe = mlx5e_dealloc_rx_mpwqe; | |
596 | ||
597 | rq->handle_rx_cqe = c->priv->profile->rx_handlers.handle_rx_cqe_mpwqe; | |
598 | #ifdef CONFIG_MLX5_EN_IPSEC | |
599 | if (MLX5_IPSEC_DEV(mdev)) { | |
600 | err = -EINVAL; | |
601 | netdev_err(c->netdev, "MPWQE RQ with IPSec offload not supported\n"); | |
602 | goto err_rq_wq_destroy; | |
603 | } | |
604 | #endif | |
605 | if (!rq->handle_rx_cqe) { | |
606 | err = -EINVAL; | |
607 | netdev_err(c->netdev, "RX handler of MPWQE RQ is not set, err %d\n", err); | |
608 | goto err_rq_wq_destroy; | |
609 | } | |
610 | ||
611 | rq->mpwqe.log_stride_sz = params->mpwqe_log_stride_sz; | |
612 | rq->mpwqe.num_strides = BIT(params->mpwqe_log_num_strides); | |
613 | ||
614 | byte_count = rq->mpwqe.num_strides << rq->mpwqe.log_stride_sz; | |
615 | ||
616 | err = mlx5e_create_rq_umr_mkey(mdev, rq); | |
617 | if (err) | |
618 | goto err_rq_wq_destroy; | |
619 | rq->mkey_be = cpu_to_be32(rq->umr_mkey.key); | |
620 | ||
621 | err = mlx5e_rq_alloc_mpwqe_info(rq, c); | |
622 | if (err) | |
623 | goto err_destroy_umr_mkey; | |
624 | break; | |
625 | default: /* MLX5_WQ_TYPE_LINKED_LIST */ | |
626 | rq->wqe.frag_info = | |
627 | kzalloc_node(wq_sz * sizeof(*rq->wqe.frag_info), | |
628 | GFP_KERNEL, cpu_to_node(c->cpu)); | |
629 | if (!rq->wqe.frag_info) { | |
630 | err = -ENOMEM; | |
631 | goto err_rq_wq_destroy; | |
632 | } | |
633 | rq->post_wqes = mlx5e_post_rx_wqes; | |
634 | rq->dealloc_wqe = mlx5e_dealloc_rx_wqe; | |
635 | ||
636 | #ifdef CONFIG_MLX5_EN_IPSEC | |
637 | if (c->priv->ipsec) | |
638 | rq->handle_rx_cqe = mlx5e_ipsec_handle_rx_cqe; | |
639 | else | |
640 | #endif | |
641 | rq->handle_rx_cqe = c->priv->profile->rx_handlers.handle_rx_cqe; | |
642 | if (!rq->handle_rx_cqe) { | |
643 | kfree(rq->wqe.frag_info); | |
644 | err = -EINVAL; | |
645 | netdev_err(c->netdev, "RX handler of RQ is not set, err %d\n", err); | |
646 | goto err_rq_wq_destroy; | |
647 | } | |
648 | ||
649 | byte_count = params->lro_en ? | |
650 | params->lro_wqe_sz : | |
651 | MLX5E_SW2HW_MTU(c->priv, c->netdev->mtu); | |
652 | #ifdef CONFIG_MLX5_EN_IPSEC | |
653 | if (MLX5_IPSEC_DEV(mdev)) | |
654 | byte_count += MLX5E_METADATA_ETHER_LEN; | |
655 | #endif | |
656 | rq->wqe.page_reuse = !params->xdp_prog && !params->lro_en; | |
657 | ||
658 | /* calc the required page order */ | |
659 | rq->wqe.frag_sz = MLX5_SKB_FRAG_SZ(rq->buff.headroom + byte_count); | |
660 | npages = DIV_ROUND_UP(rq->wqe.frag_sz, PAGE_SIZE); | |
661 | rq->buff.page_order = order_base_2(npages); | |
662 | ||
663 | byte_count |= MLX5_HW_START_PADDING; | |
664 | rq->mkey_be = c->mkey_be; | |
665 | } | |
666 | ||
667 | for (i = 0; i < wq_sz; i++) { | |
668 | struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i); | |
669 | ||
670 | if (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) { | |
671 | u64 dma_offset = (u64)mlx5e_get_wqe_mtt_offset(rq, i) << PAGE_SHIFT; | |
672 | ||
673 | wqe->data.addr = cpu_to_be64(dma_offset); | |
674 | } | |
675 | ||
676 | wqe->data.byte_count = cpu_to_be32(byte_count); | |
677 | wqe->data.lkey = rq->mkey_be; | |
678 | } | |
679 | ||
680 | INIT_WORK(&rq->am.work, mlx5e_rx_am_work); | |
681 | rq->am.mode = params->rx_cq_moderation.cq_period_mode; | |
682 | rq->page_cache.head = 0; | |
683 | rq->page_cache.tail = 0; | |
684 | ||
685 | return 0; | |
686 | ||
687 | err_destroy_umr_mkey: | |
688 | mlx5_core_destroy_mkey(mdev, &rq->umr_mkey); | |
689 | ||
690 | err_rq_wq_destroy: | |
691 | if (rq->xdp_prog) | |
692 | bpf_prog_put(rq->xdp_prog); | |
693 | mlx5_wq_destroy(&rq->wq_ctrl); | |
694 | ||
695 | return err; | |
696 | } | |
697 | ||
698 | static void mlx5e_free_rq(struct mlx5e_rq *rq) | |
699 | { | |
700 | int i; | |
701 | ||
702 | if (rq->xdp_prog) | |
703 | bpf_prog_put(rq->xdp_prog); | |
704 | ||
705 | switch (rq->wq_type) { | |
706 | case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ: | |
707 | mlx5e_rq_free_mpwqe_info(rq); | |
708 | mlx5_core_destroy_mkey(rq->mdev, &rq->umr_mkey); | |
709 | break; | |
710 | default: /* MLX5_WQ_TYPE_LINKED_LIST */ | |
711 | kfree(rq->wqe.frag_info); | |
712 | } | |
713 | ||
714 | for (i = rq->page_cache.head; i != rq->page_cache.tail; | |
715 | i = (i + 1) & (MLX5E_CACHE_SIZE - 1)) { | |
716 | struct mlx5e_dma_info *dma_info = &rq->page_cache.page_cache[i]; | |
717 | ||
718 | mlx5e_page_release(rq, dma_info, false); | |
719 | } | |
720 | mlx5_wq_destroy(&rq->wq_ctrl); | |
721 | } | |
722 | ||
723 | static int mlx5e_create_rq(struct mlx5e_rq *rq, | |
724 | struct mlx5e_rq_param *param) | |
725 | { | |
726 | struct mlx5_core_dev *mdev = rq->mdev; | |
727 | ||
728 | void *in; | |
729 | void *rqc; | |
730 | void *wq; | |
731 | int inlen; | |
732 | int err; | |
733 | ||
734 | inlen = MLX5_ST_SZ_BYTES(create_rq_in) + | |
735 | sizeof(u64) * rq->wq_ctrl.buf.npages; | |
736 | in = kvzalloc(inlen, GFP_KERNEL); | |
737 | if (!in) | |
738 | return -ENOMEM; | |
739 | ||
740 | rqc = MLX5_ADDR_OF(create_rq_in, in, ctx); | |
741 | wq = MLX5_ADDR_OF(rqc, rqc, wq); | |
742 | ||
743 | memcpy(rqc, param->rqc, sizeof(param->rqc)); | |
744 | ||
745 | MLX5_SET(rqc, rqc, cqn, rq->cq.mcq.cqn); | |
746 | MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST); | |
747 | MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift - | |
748 | MLX5_ADAPTER_PAGE_SHIFT); | |
749 | MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma); | |
750 | ||
751 | mlx5_fill_page_array(&rq->wq_ctrl.buf, | |
752 | (__be64 *)MLX5_ADDR_OF(wq, wq, pas)); | |
753 | ||
754 | err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn); | |
755 | ||
756 | kvfree(in); | |
757 | ||
758 | return err; | |
759 | } | |
760 | ||
761 | static int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state, | |
762 | int next_state) | |
763 | { | |
764 | struct mlx5e_channel *c = rq->channel; | |
765 | struct mlx5_core_dev *mdev = c->mdev; | |
766 | ||
767 | void *in; | |
768 | void *rqc; | |
769 | int inlen; | |
770 | int err; | |
771 | ||
772 | inlen = MLX5_ST_SZ_BYTES(modify_rq_in); | |
773 | in = kvzalloc(inlen, GFP_KERNEL); | |
774 | if (!in) | |
775 | return -ENOMEM; | |
776 | ||
777 | rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx); | |
778 | ||
779 | MLX5_SET(modify_rq_in, in, rq_state, curr_state); | |
780 | MLX5_SET(rqc, rqc, state, next_state); | |
781 | ||
782 | err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen); | |
783 | ||
784 | kvfree(in); | |
785 | ||
786 | return err; | |
787 | } | |
788 | ||
789 | static int mlx5e_modify_rq_scatter_fcs(struct mlx5e_rq *rq, bool enable) | |
790 | { | |
791 | struct mlx5e_channel *c = rq->channel; | |
792 | struct mlx5e_priv *priv = c->priv; | |
793 | struct mlx5_core_dev *mdev = priv->mdev; | |
794 | ||
795 | void *in; | |
796 | void *rqc; | |
797 | int inlen; | |
798 | int err; | |
799 | ||
800 | inlen = MLX5_ST_SZ_BYTES(modify_rq_in); | |
801 | in = kvzalloc(inlen, GFP_KERNEL); | |
802 | if (!in) | |
803 | return -ENOMEM; | |
804 | ||
805 | rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx); | |
806 | ||
807 | MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY); | |
808 | MLX5_SET64(modify_rq_in, in, modify_bitmask, | |
809 | MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_SCATTER_FCS); | |
810 | MLX5_SET(rqc, rqc, scatter_fcs, enable); | |
811 | MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY); | |
812 | ||
813 | err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen); | |
814 | ||
815 | kvfree(in); | |
816 | ||
817 | return err; | |
818 | } | |
819 | ||
820 | static int mlx5e_modify_rq_vsd(struct mlx5e_rq *rq, bool vsd) | |
821 | { | |
822 | struct mlx5e_channel *c = rq->channel; | |
823 | struct mlx5_core_dev *mdev = c->mdev; | |
824 | void *in; | |
825 | void *rqc; | |
826 | int inlen; | |
827 | int err; | |
828 | ||
829 | inlen = MLX5_ST_SZ_BYTES(modify_rq_in); | |
830 | in = kvzalloc(inlen, GFP_KERNEL); | |
831 | if (!in) | |
832 | return -ENOMEM; | |
833 | ||
834 | rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx); | |
835 | ||
836 | MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY); | |
837 | MLX5_SET64(modify_rq_in, in, modify_bitmask, | |
838 | MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_VSD); | |
839 | MLX5_SET(rqc, rqc, vsd, vsd); | |
840 | MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY); | |
841 | ||
842 | err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen); | |
843 | ||
844 | kvfree(in); | |
845 | ||
846 | return err; | |
847 | } | |
848 | ||
849 | static void mlx5e_destroy_rq(struct mlx5e_rq *rq) | |
850 | { | |
851 | mlx5_core_destroy_rq(rq->mdev, rq->rqn); | |
852 | } | |
853 | ||
854 | static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq) | |
855 | { | |
856 | unsigned long exp_time = jiffies + msecs_to_jiffies(20000); | |
857 | struct mlx5e_channel *c = rq->channel; | |
858 | ||
859 | struct mlx5_wq_ll *wq = &rq->wq; | |
860 | u16 min_wqes = mlx5_min_rx_wqes(rq->wq_type, mlx5_wq_ll_get_size(wq)); | |
861 | ||
862 | while (time_before(jiffies, exp_time)) { | |
863 | if (wq->cur_sz >= min_wqes) | |
864 | return 0; | |
865 | ||
866 | msleep(20); | |
867 | } | |
868 | ||
869 | netdev_warn(c->netdev, "Failed to get min RX wqes on RQN[0x%x] wq cur_sz(%d) min_rx_wqes(%d)\n", | |
870 | rq->rqn, wq->cur_sz, min_wqes); | |
871 | return -ETIMEDOUT; | |
872 | } | |
873 | ||
874 | static void mlx5e_free_rx_descs(struct mlx5e_rq *rq) | |
875 | { | |
876 | struct mlx5_wq_ll *wq = &rq->wq; | |
877 | struct mlx5e_rx_wqe *wqe; | |
878 | __be16 wqe_ix_be; | |
879 | u16 wqe_ix; | |
880 | ||
881 | /* UMR WQE (if in progress) is always at wq->head */ | |
882 | if (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ && | |
883 | rq->mpwqe.umr_in_progress) | |
884 | mlx5e_free_rx_mpwqe(rq, &rq->mpwqe.info[wq->head]); | |
885 | ||
886 | while (!mlx5_wq_ll_is_empty(wq)) { | |
887 | wqe_ix_be = *wq->tail_next; | |
888 | wqe_ix = be16_to_cpu(wqe_ix_be); | |
889 | wqe = mlx5_wq_ll_get_wqe(&rq->wq, wqe_ix); | |
890 | rq->dealloc_wqe(rq, wqe_ix); | |
891 | mlx5_wq_ll_pop(&rq->wq, wqe_ix_be, | |
892 | &wqe->next.next_wqe_index); | |
893 | } | |
894 | ||
895 | if (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST && rq->wqe.page_reuse) { | |
896 | /* Clean outstanding pages on handled WQEs that decided to do page-reuse, | |
897 | * but yet to be re-posted. | |
898 | */ | |
899 | int wq_sz = mlx5_wq_ll_get_size(&rq->wq); | |
900 | ||
901 | for (wqe_ix = 0; wqe_ix < wq_sz; wqe_ix++) | |
902 | rq->dealloc_wqe(rq, wqe_ix); | |
903 | } | |
904 | } | |
905 | ||
906 | static int mlx5e_open_rq(struct mlx5e_channel *c, | |
907 | struct mlx5e_params *params, | |
908 | struct mlx5e_rq_param *param, | |
909 | struct mlx5e_rq *rq) | |
910 | { | |
911 | int err; | |
912 | ||
913 | err = mlx5e_alloc_rq(c, params, param, rq); | |
914 | if (err) | |
915 | return err; | |
916 | ||
917 | err = mlx5e_create_rq(rq, param); | |
918 | if (err) | |
919 | goto err_free_rq; | |
920 | ||
921 | err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); | |
922 | if (err) | |
923 | goto err_destroy_rq; | |
924 | ||
925 | if (params->rx_am_enabled) | |
926 | c->rq.state |= BIT(MLX5E_RQ_STATE_AM); | |
927 | ||
928 | if (MLX5_CAP_ETH(c->mdev, cqe_checksum_full)) | |
929 | __set_bit(MLX5E_RQ_STATE_CSUM_FULL, &c->rq.state); | |
930 | ||
931 | /* We disable csum_complete when XDP is enabled since | |
932 | * XDP programs might manipulate packets which will render | |
933 | * skb->checksum incorrect. | |
934 | */ | |
935 | if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_NO_CSUM_COMPLETE) || c->xdp) | |
936 | __set_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &c->rq.state); | |
937 | ||
938 | return 0; | |
939 | ||
940 | err_destroy_rq: | |
941 | mlx5e_destroy_rq(rq); | |
942 | err_free_rq: | |
943 | mlx5e_free_rq(rq); | |
944 | ||
945 | return err; | |
946 | } | |
947 | ||
948 | static void mlx5e_activate_rq(struct mlx5e_rq *rq) | |
949 | { | |
950 | struct mlx5e_icosq *sq = &rq->channel->icosq; | |
951 | u16 pi = sq->pc & sq->wq.sz_m1; | |
952 | struct mlx5e_tx_wqe *nopwqe; | |
953 | ||
954 | set_bit(MLX5E_RQ_STATE_ENABLED, &rq->state); | |
955 | sq->db.ico_wqe[pi].opcode = MLX5_OPCODE_NOP; | |
956 | nopwqe = mlx5e_post_nop(&sq->wq, sq->sqn, &sq->pc); | |
957 | mlx5e_notify_hw(&sq->wq, sq->pc, sq->uar_map, &nopwqe->ctrl); | |
958 | } | |
959 | ||
960 | static void mlx5e_deactivate_rq(struct mlx5e_rq *rq) | |
961 | { | |
962 | clear_bit(MLX5E_RQ_STATE_ENABLED, &rq->state); | |
963 | napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */ | |
964 | } | |
965 | ||
966 | static void mlx5e_close_rq(struct mlx5e_rq *rq) | |
967 | { | |
968 | cancel_work_sync(&rq->am.work); | |
969 | mlx5e_destroy_rq(rq); | |
970 | mlx5e_free_rx_descs(rq); | |
971 | mlx5e_free_rq(rq); | |
972 | } | |
973 | ||
974 | static void mlx5e_free_xdpsq_db(struct mlx5e_xdpsq *sq) | |
975 | { | |
976 | kfree(sq->db.di); | |
977 | } | |
978 | ||
979 | static int mlx5e_alloc_xdpsq_db(struct mlx5e_xdpsq *sq, int numa) | |
980 | { | |
981 | int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); | |
982 | ||
983 | sq->db.di = kzalloc_node(sizeof(*sq->db.di) * wq_sz, | |
984 | GFP_KERNEL, numa); | |
985 | if (!sq->db.di) { | |
986 | mlx5e_free_xdpsq_db(sq); | |
987 | return -ENOMEM; | |
988 | } | |
989 | ||
990 | return 0; | |
991 | } | |
992 | ||
993 | static int mlx5e_alloc_xdpsq(struct mlx5e_channel *c, | |
994 | struct mlx5e_params *params, | |
995 | struct mlx5e_sq_param *param, | |
996 | struct mlx5e_xdpsq *sq) | |
997 | { | |
998 | void *sqc_wq = MLX5_ADDR_OF(sqc, param->sqc, wq); | |
999 | struct mlx5_core_dev *mdev = c->mdev; | |
1000 | int err; | |
1001 | ||
1002 | sq->pdev = c->pdev; | |
1003 | sq->mkey_be = c->mkey_be; | |
1004 | sq->channel = c; | |
1005 | sq->uar_map = mdev->mlx5e_res.bfreg.map; | |
1006 | sq->min_inline_mode = params->tx_min_inline_mode; | |
1007 | ||
1008 | param->wq.db_numa_node = cpu_to_node(c->cpu); | |
1009 | err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, &sq->wq, &sq->wq_ctrl); | |
1010 | if (err) | |
1011 | return err; | |
1012 | sq->wq.db = &sq->wq.db[MLX5_SND_DBR]; | |
1013 | ||
1014 | err = mlx5e_alloc_xdpsq_db(sq, cpu_to_node(c->cpu)); | |
1015 | if (err) | |
1016 | goto err_sq_wq_destroy; | |
1017 | ||
1018 | return 0; | |
1019 | ||
1020 | err_sq_wq_destroy: | |
1021 | mlx5_wq_destroy(&sq->wq_ctrl); | |
1022 | ||
1023 | return err; | |
1024 | } | |
1025 | ||
1026 | static void mlx5e_free_xdpsq(struct mlx5e_xdpsq *sq) | |
1027 | { | |
1028 | mlx5e_free_xdpsq_db(sq); | |
1029 | mlx5_wq_destroy(&sq->wq_ctrl); | |
1030 | } | |
1031 | ||
1032 | static void mlx5e_free_icosq_db(struct mlx5e_icosq *sq) | |
1033 | { | |
1034 | kfree(sq->db.ico_wqe); | |
1035 | } | |
1036 | ||
1037 | static int mlx5e_alloc_icosq_db(struct mlx5e_icosq *sq, int numa) | |
1038 | { | |
1039 | u8 wq_sz = mlx5_wq_cyc_get_size(&sq->wq); | |
1040 | ||
1041 | sq->db.ico_wqe = kzalloc_node(sizeof(*sq->db.ico_wqe) * wq_sz, | |
1042 | GFP_KERNEL, numa); | |
1043 | if (!sq->db.ico_wqe) | |
1044 | return -ENOMEM; | |
1045 | ||
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | static int mlx5e_alloc_icosq(struct mlx5e_channel *c, | |
1050 | struct mlx5e_sq_param *param, | |
1051 | struct mlx5e_icosq *sq) | |
1052 | { | |
1053 | void *sqc_wq = MLX5_ADDR_OF(sqc, param->sqc, wq); | |
1054 | struct mlx5_core_dev *mdev = c->mdev; | |
1055 | int err; | |
1056 | ||
1057 | sq->mkey_be = c->mkey_be; | |
1058 | sq->channel = c; | |
1059 | sq->uar_map = mdev->mlx5e_res.bfreg.map; | |
1060 | ||
1061 | param->wq.db_numa_node = cpu_to_node(c->cpu); | |
1062 | err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, &sq->wq, &sq->wq_ctrl); | |
1063 | if (err) | |
1064 | return err; | |
1065 | sq->wq.db = &sq->wq.db[MLX5_SND_DBR]; | |
1066 | ||
1067 | err = mlx5e_alloc_icosq_db(sq, cpu_to_node(c->cpu)); | |
1068 | if (err) | |
1069 | goto err_sq_wq_destroy; | |
1070 | ||
1071 | sq->edge = (sq->wq.sz_m1 + 1) - MLX5E_ICOSQ_MAX_WQEBBS; | |
1072 | ||
1073 | return 0; | |
1074 | ||
1075 | err_sq_wq_destroy: | |
1076 | mlx5_wq_destroy(&sq->wq_ctrl); | |
1077 | ||
1078 | return err; | |
1079 | } | |
1080 | ||
1081 | static void mlx5e_free_icosq(struct mlx5e_icosq *sq) | |
1082 | { | |
1083 | mlx5e_free_icosq_db(sq); | |
1084 | mlx5_wq_destroy(&sq->wq_ctrl); | |
1085 | } | |
1086 | ||
1087 | static void mlx5e_free_txqsq_db(struct mlx5e_txqsq *sq) | |
1088 | { | |
1089 | kfree(sq->db.wqe_info); | |
1090 | kfree(sq->db.dma_fifo); | |
1091 | } | |
1092 | ||
1093 | static int mlx5e_alloc_txqsq_db(struct mlx5e_txqsq *sq, int numa) | |
1094 | { | |
1095 | int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); | |
1096 | int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS; | |
1097 | ||
1098 | sq->db.dma_fifo = kzalloc_node(df_sz * sizeof(*sq->db.dma_fifo), | |
1099 | GFP_KERNEL, numa); | |
1100 | sq->db.wqe_info = kzalloc_node(wq_sz * sizeof(*sq->db.wqe_info), | |
1101 | GFP_KERNEL, numa); | |
1102 | if (!sq->db.dma_fifo || !sq->db.wqe_info) { | |
1103 | mlx5e_free_txqsq_db(sq); | |
1104 | return -ENOMEM; | |
1105 | } | |
1106 | ||
1107 | sq->dma_fifo_mask = df_sz - 1; | |
1108 | ||
1109 | return 0; | |
1110 | } | |
1111 | ||
1112 | static int mlx5e_alloc_txqsq(struct mlx5e_channel *c, | |
1113 | int txq_ix, | |
1114 | struct mlx5e_params *params, | |
1115 | struct mlx5e_sq_param *param, | |
1116 | struct mlx5e_txqsq *sq) | |
1117 | { | |
1118 | void *sqc_wq = MLX5_ADDR_OF(sqc, param->sqc, wq); | |
1119 | struct mlx5_core_dev *mdev = c->mdev; | |
1120 | int err; | |
1121 | ||
1122 | sq->pdev = c->pdev; | |
1123 | sq->tstamp = c->tstamp; | |
1124 | sq->clock = &mdev->clock; | |
1125 | sq->mkey_be = c->mkey_be; | |
1126 | sq->channel = c; | |
1127 | sq->txq_ix = txq_ix; | |
1128 | sq->uar_map = mdev->mlx5e_res.bfreg.map; | |
1129 | sq->max_inline = params->tx_max_inline; | |
1130 | sq->min_inline_mode = params->tx_min_inline_mode; | |
1131 | if (MLX5_IPSEC_DEV(c->priv->mdev)) | |
1132 | set_bit(MLX5E_SQ_STATE_IPSEC, &sq->state); | |
1133 | ||
1134 | param->wq.db_numa_node = cpu_to_node(c->cpu); | |
1135 | err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, &sq->wq, &sq->wq_ctrl); | |
1136 | if (err) | |
1137 | return err; | |
1138 | sq->wq.db = &sq->wq.db[MLX5_SND_DBR]; | |
1139 | ||
1140 | err = mlx5e_alloc_txqsq_db(sq, cpu_to_node(c->cpu)); | |
1141 | if (err) | |
1142 | goto err_sq_wq_destroy; | |
1143 | ||
1144 | sq->edge = (sq->wq.sz_m1 + 1) - MLX5_SEND_WQE_MAX_WQEBBS; | |
1145 | ||
1146 | return 0; | |
1147 | ||
1148 | err_sq_wq_destroy: | |
1149 | mlx5_wq_destroy(&sq->wq_ctrl); | |
1150 | ||
1151 | return err; | |
1152 | } | |
1153 | ||
1154 | static void mlx5e_free_txqsq(struct mlx5e_txqsq *sq) | |
1155 | { | |
1156 | mlx5e_free_txqsq_db(sq); | |
1157 | mlx5_wq_destroy(&sq->wq_ctrl); | |
1158 | } | |
1159 | ||
1160 | struct mlx5e_create_sq_param { | |
1161 | struct mlx5_wq_ctrl *wq_ctrl; | |
1162 | u32 cqn; | |
1163 | u32 tisn; | |
1164 | u8 tis_lst_sz; | |
1165 | u8 min_inline_mode; | |
1166 | }; | |
1167 | ||
1168 | static int mlx5e_create_sq(struct mlx5_core_dev *mdev, | |
1169 | struct mlx5e_sq_param *param, | |
1170 | struct mlx5e_create_sq_param *csp, | |
1171 | u32 *sqn) | |
1172 | { | |
1173 | void *in; | |
1174 | void *sqc; | |
1175 | void *wq; | |
1176 | int inlen; | |
1177 | int err; | |
1178 | ||
1179 | inlen = MLX5_ST_SZ_BYTES(create_sq_in) + | |
1180 | sizeof(u64) * csp->wq_ctrl->buf.npages; | |
1181 | in = kvzalloc(inlen, GFP_KERNEL); | |
1182 | if (!in) | |
1183 | return -ENOMEM; | |
1184 | ||
1185 | sqc = MLX5_ADDR_OF(create_sq_in, in, ctx); | |
1186 | wq = MLX5_ADDR_OF(sqc, sqc, wq); | |
1187 | ||
1188 | memcpy(sqc, param->sqc, sizeof(param->sqc)); | |
1189 | MLX5_SET(sqc, sqc, tis_lst_sz, csp->tis_lst_sz); | |
1190 | MLX5_SET(sqc, sqc, tis_num_0, csp->tisn); | |
1191 | MLX5_SET(sqc, sqc, cqn, csp->cqn); | |
1192 | ||
1193 | if (MLX5_CAP_ETH(mdev, wqe_inline_mode) == MLX5_CAP_INLINE_MODE_VPORT_CONTEXT) | |
1194 | MLX5_SET(sqc, sqc, min_wqe_inline_mode, csp->min_inline_mode); | |
1195 | ||
1196 | MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST); | |
1197 | ||
1198 | MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC); | |
1199 | MLX5_SET(wq, wq, uar_page, mdev->mlx5e_res.bfreg.index); | |
1200 | MLX5_SET(wq, wq, log_wq_pg_sz, csp->wq_ctrl->buf.page_shift - | |
1201 | MLX5_ADAPTER_PAGE_SHIFT); | |
1202 | MLX5_SET64(wq, wq, dbr_addr, csp->wq_ctrl->db.dma); | |
1203 | ||
1204 | mlx5_fill_page_array(&csp->wq_ctrl->buf, (__be64 *)MLX5_ADDR_OF(wq, wq, pas)); | |
1205 | ||
1206 | err = mlx5_core_create_sq(mdev, in, inlen, sqn); | |
1207 | ||
1208 | kvfree(in); | |
1209 | ||
1210 | return err; | |
1211 | } | |
1212 | ||
1213 | struct mlx5e_modify_sq_param { | |
1214 | int curr_state; | |
1215 | int next_state; | |
1216 | bool rl_update; | |
1217 | int rl_index; | |
1218 | }; | |
1219 | ||
1220 | static int mlx5e_modify_sq(struct mlx5_core_dev *mdev, u32 sqn, | |
1221 | struct mlx5e_modify_sq_param *p) | |
1222 | { | |
1223 | void *in; | |
1224 | void *sqc; | |
1225 | int inlen; | |
1226 | int err; | |
1227 | ||
1228 | inlen = MLX5_ST_SZ_BYTES(modify_sq_in); | |
1229 | in = kvzalloc(inlen, GFP_KERNEL); | |
1230 | if (!in) | |
1231 | return -ENOMEM; | |
1232 | ||
1233 | sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx); | |
1234 | ||
1235 | MLX5_SET(modify_sq_in, in, sq_state, p->curr_state); | |
1236 | MLX5_SET(sqc, sqc, state, p->next_state); | |
1237 | if (p->rl_update && p->next_state == MLX5_SQC_STATE_RDY) { | |
1238 | MLX5_SET64(modify_sq_in, in, modify_bitmask, 1); | |
1239 | MLX5_SET(sqc, sqc, packet_pacing_rate_limit_index, p->rl_index); | |
1240 | } | |
1241 | ||
1242 | err = mlx5_core_modify_sq(mdev, sqn, in, inlen); | |
1243 | ||
1244 | kvfree(in); | |
1245 | ||
1246 | return err; | |
1247 | } | |
1248 | ||
1249 | static void mlx5e_destroy_sq(struct mlx5_core_dev *mdev, u32 sqn) | |
1250 | { | |
1251 | mlx5_core_destroy_sq(mdev, sqn); | |
1252 | } | |
1253 | ||
1254 | static int mlx5e_create_sq_rdy(struct mlx5_core_dev *mdev, | |
1255 | struct mlx5e_sq_param *param, | |
1256 | struct mlx5e_create_sq_param *csp, | |
1257 | u32 *sqn) | |
1258 | { | |
1259 | struct mlx5e_modify_sq_param msp = {0}; | |
1260 | int err; | |
1261 | ||
1262 | err = mlx5e_create_sq(mdev, param, csp, sqn); | |
1263 | if (err) | |
1264 | return err; | |
1265 | ||
1266 | msp.curr_state = MLX5_SQC_STATE_RST; | |
1267 | msp.next_state = MLX5_SQC_STATE_RDY; | |
1268 | err = mlx5e_modify_sq(mdev, *sqn, &msp); | |
1269 | if (err) | |
1270 | mlx5e_destroy_sq(mdev, *sqn); | |
1271 | ||
1272 | return err; | |
1273 | } | |
1274 | ||
1275 | static int mlx5e_set_sq_maxrate(struct net_device *dev, | |
1276 | struct mlx5e_txqsq *sq, u32 rate); | |
1277 | ||
1278 | static int mlx5e_open_txqsq(struct mlx5e_channel *c, | |
1279 | u32 tisn, | |
1280 | int txq_ix, | |
1281 | struct mlx5e_params *params, | |
1282 | struct mlx5e_sq_param *param, | |
1283 | struct mlx5e_txqsq *sq) | |
1284 | { | |
1285 | struct mlx5e_create_sq_param csp = {}; | |
1286 | u32 tx_rate; | |
1287 | int err; | |
1288 | ||
1289 | err = mlx5e_alloc_txqsq(c, txq_ix, params, param, sq); | |
1290 | if (err) | |
1291 | return err; | |
1292 | ||
1293 | csp.tisn = tisn; | |
1294 | csp.tis_lst_sz = 1; | |
1295 | csp.cqn = sq->cq.mcq.cqn; | |
1296 | csp.wq_ctrl = &sq->wq_ctrl; | |
1297 | csp.min_inline_mode = sq->min_inline_mode; | |
1298 | err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn); | |
1299 | if (err) | |
1300 | goto err_free_txqsq; | |
1301 | ||
1302 | tx_rate = c->priv->tx_rates[sq->txq_ix]; | |
1303 | if (tx_rate) | |
1304 | mlx5e_set_sq_maxrate(c->netdev, sq, tx_rate); | |
1305 | ||
1306 | return 0; | |
1307 | ||
1308 | err_free_txqsq: | |
1309 | clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); | |
1310 | mlx5e_free_txqsq(sq); | |
1311 | ||
1312 | return err; | |
1313 | } | |
1314 | ||
1315 | static void mlx5e_activate_txqsq(struct mlx5e_txqsq *sq) | |
1316 | { | |
1317 | sq->txq = netdev_get_tx_queue(sq->channel->netdev, sq->txq_ix); | |
1318 | set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); | |
1319 | netdev_tx_reset_queue(sq->txq); | |
1320 | netif_tx_start_queue(sq->txq); | |
1321 | } | |
1322 | ||
1323 | static inline void netif_tx_disable_queue(struct netdev_queue *txq) | |
1324 | { | |
1325 | __netif_tx_lock_bh(txq); | |
1326 | netif_tx_stop_queue(txq); | |
1327 | __netif_tx_unlock_bh(txq); | |
1328 | } | |
1329 | ||
1330 | static void mlx5e_deactivate_txqsq(struct mlx5e_txqsq *sq) | |
1331 | { | |
1332 | struct mlx5e_channel *c = sq->channel; | |
1333 | ||
1334 | clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); | |
1335 | /* prevent netif_tx_wake_queue */ | |
1336 | napi_synchronize(&c->napi); | |
1337 | ||
1338 | netif_tx_disable_queue(sq->txq); | |
1339 | ||
1340 | /* last doorbell out, godspeed .. */ | |
1341 | if (mlx5e_wqc_has_room_for(&sq->wq, sq->cc, sq->pc, 1)) { | |
1342 | struct mlx5e_tx_wqe *nop; | |
1343 | ||
1344 | sq->db.wqe_info[(sq->pc & sq->wq.sz_m1)].skb = NULL; | |
1345 | nop = mlx5e_post_nop(&sq->wq, sq->sqn, &sq->pc); | |
1346 | mlx5e_notify_hw(&sq->wq, sq->pc, sq->uar_map, &nop->ctrl); | |
1347 | } | |
1348 | } | |
1349 | ||
1350 | static void mlx5e_close_txqsq(struct mlx5e_txqsq *sq) | |
1351 | { | |
1352 | struct mlx5e_channel *c = sq->channel; | |
1353 | struct mlx5_core_dev *mdev = c->mdev; | |
1354 | ||
1355 | mlx5e_destroy_sq(mdev, sq->sqn); | |
1356 | if (sq->rate_limit) | |
1357 | mlx5_rl_remove_rate(mdev, sq->rate_limit); | |
1358 | mlx5e_free_txqsq_descs(sq); | |
1359 | mlx5e_free_txqsq(sq); | |
1360 | } | |
1361 | ||
1362 | static int mlx5e_open_icosq(struct mlx5e_channel *c, | |
1363 | struct mlx5e_params *params, | |
1364 | struct mlx5e_sq_param *param, | |
1365 | struct mlx5e_icosq *sq) | |
1366 | { | |
1367 | struct mlx5e_create_sq_param csp = {}; | |
1368 | int err; | |
1369 | ||
1370 | err = mlx5e_alloc_icosq(c, param, sq); | |
1371 | if (err) | |
1372 | return err; | |
1373 | ||
1374 | csp.cqn = sq->cq.mcq.cqn; | |
1375 | csp.wq_ctrl = &sq->wq_ctrl; | |
1376 | csp.min_inline_mode = params->tx_min_inline_mode; | |
1377 | set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); | |
1378 | err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn); | |
1379 | if (err) | |
1380 | goto err_free_icosq; | |
1381 | ||
1382 | return 0; | |
1383 | ||
1384 | err_free_icosq: | |
1385 | clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); | |
1386 | mlx5e_free_icosq(sq); | |
1387 | ||
1388 | return err; | |
1389 | } | |
1390 | ||
1391 | static void mlx5e_close_icosq(struct mlx5e_icosq *sq) | |
1392 | { | |
1393 | struct mlx5e_channel *c = sq->channel; | |
1394 | ||
1395 | clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); | |
1396 | napi_synchronize(&c->napi); | |
1397 | ||
1398 | mlx5e_destroy_sq(c->mdev, sq->sqn); | |
1399 | mlx5e_free_icosq(sq); | |
1400 | } | |
1401 | ||
1402 | static int mlx5e_open_xdpsq(struct mlx5e_channel *c, | |
1403 | struct mlx5e_params *params, | |
1404 | struct mlx5e_sq_param *param, | |
1405 | struct mlx5e_xdpsq *sq) | |
1406 | { | |
1407 | unsigned int ds_cnt = MLX5E_XDP_TX_DS_COUNT; | |
1408 | struct mlx5e_create_sq_param csp = {}; | |
1409 | unsigned int inline_hdr_sz = 0; | |
1410 | int err; | |
1411 | int i; | |
1412 | ||
1413 | err = mlx5e_alloc_xdpsq(c, params, param, sq); | |
1414 | if (err) | |
1415 | return err; | |
1416 | ||
1417 | csp.tis_lst_sz = 1; | |
1418 | csp.tisn = c->priv->tisn[0]; /* tc = 0 */ | |
1419 | csp.cqn = sq->cq.mcq.cqn; | |
1420 | csp.wq_ctrl = &sq->wq_ctrl; | |
1421 | csp.min_inline_mode = sq->min_inline_mode; | |
1422 | set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); | |
1423 | err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn); | |
1424 | if (err) | |
1425 | goto err_free_xdpsq; | |
1426 | ||
1427 | if (sq->min_inline_mode != MLX5_INLINE_MODE_NONE) { | |
1428 | inline_hdr_sz = MLX5E_XDP_MIN_INLINE; | |
1429 | ds_cnt++; | |
1430 | } | |
1431 | ||
1432 | /* Pre initialize fixed WQE fields */ | |
1433 | for (i = 0; i < mlx5_wq_cyc_get_size(&sq->wq); i++) { | |
1434 | struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(&sq->wq, i); | |
1435 | struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl; | |
1436 | struct mlx5_wqe_eth_seg *eseg = &wqe->eth; | |
1437 | struct mlx5_wqe_data_seg *dseg; | |
1438 | ||
1439 | cseg->qpn_ds = cpu_to_be32((sq->sqn << 8) | ds_cnt); | |
1440 | eseg->inline_hdr.sz = cpu_to_be16(inline_hdr_sz); | |
1441 | ||
1442 | dseg = (struct mlx5_wqe_data_seg *)cseg + (ds_cnt - 1); | |
1443 | dseg->lkey = sq->mkey_be; | |
1444 | } | |
1445 | ||
1446 | return 0; | |
1447 | ||
1448 | err_free_xdpsq: | |
1449 | clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); | |
1450 | mlx5e_free_xdpsq(sq); | |
1451 | ||
1452 | return err; | |
1453 | } | |
1454 | ||
1455 | static void mlx5e_close_xdpsq(struct mlx5e_xdpsq *sq) | |
1456 | { | |
1457 | struct mlx5e_channel *c = sq->channel; | |
1458 | ||
1459 | clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); | |
1460 | napi_synchronize(&c->napi); | |
1461 | ||
1462 | mlx5e_destroy_sq(c->mdev, sq->sqn); | |
1463 | mlx5e_free_xdpsq_descs(sq); | |
1464 | mlx5e_free_xdpsq(sq); | |
1465 | } | |
1466 | ||
1467 | static int mlx5e_alloc_cq_common(struct mlx5_core_dev *mdev, | |
1468 | struct mlx5e_cq_param *param, | |
1469 | struct mlx5e_cq *cq) | |
1470 | { | |
1471 | struct mlx5_core_cq *mcq = &cq->mcq; | |
1472 | int eqn_not_used; | |
1473 | unsigned int irqn; | |
1474 | int err; | |
1475 | u32 i; | |
1476 | ||
1477 | err = mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn); | |
1478 | if (err) | |
1479 | return err; | |
1480 | ||
1481 | err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq, | |
1482 | &cq->wq_ctrl); | |
1483 | if (err) | |
1484 | return err; | |
1485 | ||
1486 | mcq->cqe_sz = 64; | |
1487 | mcq->set_ci_db = cq->wq_ctrl.db.db; | |
1488 | mcq->arm_db = cq->wq_ctrl.db.db + 1; | |
1489 | *mcq->set_ci_db = 0; | |
1490 | *mcq->arm_db = 0; | |
1491 | mcq->vector = param->eq_ix; | |
1492 | mcq->comp = mlx5e_completion_event; | |
1493 | mcq->event = mlx5e_cq_error_event; | |
1494 | mcq->irqn = irqn; | |
1495 | ||
1496 | for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) { | |
1497 | struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i); | |
1498 | ||
1499 | cqe->op_own = 0xf1; | |
1500 | } | |
1501 | ||
1502 | cq->mdev = mdev; | |
1503 | ||
1504 | return 0; | |
1505 | } | |
1506 | ||
1507 | static int mlx5e_alloc_cq(struct mlx5e_channel *c, | |
1508 | struct mlx5e_cq_param *param, | |
1509 | struct mlx5e_cq *cq) | |
1510 | { | |
1511 | struct mlx5_core_dev *mdev = c->priv->mdev; | |
1512 | int err; | |
1513 | ||
1514 | param->wq.buf_numa_node = cpu_to_node(c->cpu); | |
1515 | param->wq.db_numa_node = cpu_to_node(c->cpu); | |
1516 | param->eq_ix = c->ix; | |
1517 | ||
1518 | err = mlx5e_alloc_cq_common(mdev, param, cq); | |
1519 | ||
1520 | cq->napi = &c->napi; | |
1521 | cq->channel = c; | |
1522 | ||
1523 | return err; | |
1524 | } | |
1525 | ||
1526 | static void mlx5e_free_cq(struct mlx5e_cq *cq) | |
1527 | { | |
1528 | mlx5_cqwq_destroy(&cq->wq_ctrl); | |
1529 | } | |
1530 | ||
1531 | static int mlx5e_create_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param) | |
1532 | { | |
1533 | struct mlx5_core_dev *mdev = cq->mdev; | |
1534 | struct mlx5_core_cq *mcq = &cq->mcq; | |
1535 | ||
1536 | void *in; | |
1537 | void *cqc; | |
1538 | int inlen; | |
1539 | unsigned int irqn_not_used; | |
1540 | int eqn; | |
1541 | int err; | |
1542 | ||
1543 | err = mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used); | |
1544 | if (err) | |
1545 | return err; | |
1546 | ||
1547 | inlen = MLX5_ST_SZ_BYTES(create_cq_in) + | |
1548 | sizeof(u64) * cq->wq_ctrl.frag_buf.npages; | |
1549 | in = kvzalloc(inlen, GFP_KERNEL); | |
1550 | if (!in) | |
1551 | return -ENOMEM; | |
1552 | ||
1553 | cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context); | |
1554 | ||
1555 | memcpy(cqc, param->cqc, sizeof(param->cqc)); | |
1556 | ||
1557 | mlx5_fill_page_frag_array(&cq->wq_ctrl.frag_buf, | |
1558 | (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas)); | |
1559 | ||
1560 | MLX5_SET(cqc, cqc, cq_period_mode, param->cq_period_mode); | |
1561 | MLX5_SET(cqc, cqc, c_eqn, eqn); | |
1562 | MLX5_SET(cqc, cqc, uar_page, mdev->priv.uar->index); | |
1563 | MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.frag_buf.page_shift - | |
1564 | MLX5_ADAPTER_PAGE_SHIFT); | |
1565 | MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma); | |
1566 | ||
1567 | err = mlx5_core_create_cq(mdev, mcq, in, inlen); | |
1568 | ||
1569 | kvfree(in); | |
1570 | ||
1571 | if (err) | |
1572 | return err; | |
1573 | ||
1574 | mlx5e_cq_arm(cq); | |
1575 | ||
1576 | return 0; | |
1577 | } | |
1578 | ||
1579 | static void mlx5e_destroy_cq(struct mlx5e_cq *cq) | |
1580 | { | |
1581 | mlx5_core_destroy_cq(cq->mdev, &cq->mcq); | |
1582 | } | |
1583 | ||
1584 | static int mlx5e_open_cq(struct mlx5e_channel *c, | |
1585 | struct mlx5e_cq_moder moder, | |
1586 | struct mlx5e_cq_param *param, | |
1587 | struct mlx5e_cq *cq) | |
1588 | { | |
1589 | struct mlx5_core_dev *mdev = c->mdev; | |
1590 | int err; | |
1591 | ||
1592 | err = mlx5e_alloc_cq(c, param, cq); | |
1593 | if (err) | |
1594 | return err; | |
1595 | ||
1596 | err = mlx5e_create_cq(cq, param); | |
1597 | if (err) | |
1598 | goto err_free_cq; | |
1599 | ||
1600 | if (MLX5_CAP_GEN(mdev, cq_moderation)) | |
1601 | mlx5_core_modify_cq_moderation(mdev, &cq->mcq, moder.usec, moder.pkts); | |
1602 | return 0; | |
1603 | ||
1604 | err_free_cq: | |
1605 | mlx5e_free_cq(cq); | |
1606 | ||
1607 | return err; | |
1608 | } | |
1609 | ||
1610 | static void mlx5e_close_cq(struct mlx5e_cq *cq) | |
1611 | { | |
1612 | mlx5e_destroy_cq(cq); | |
1613 | mlx5e_free_cq(cq); | |
1614 | } | |
1615 | ||
1616 | static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix) | |
1617 | { | |
1618 | return cpumask_first(priv->mdev->priv.irq_info[ix + MLX5_EQ_VEC_COMP_BASE].mask); | |
1619 | } | |
1620 | ||
1621 | static int mlx5e_open_tx_cqs(struct mlx5e_channel *c, | |
1622 | struct mlx5e_params *params, | |
1623 | struct mlx5e_channel_param *cparam) | |
1624 | { | |
1625 | int err; | |
1626 | int tc; | |
1627 | ||
1628 | for (tc = 0; tc < c->num_tc; tc++) { | |
1629 | err = mlx5e_open_cq(c, params->tx_cq_moderation, | |
1630 | &cparam->tx_cq, &c->sq[tc].cq); | |
1631 | if (err) | |
1632 | goto err_close_tx_cqs; | |
1633 | } | |
1634 | ||
1635 | return 0; | |
1636 | ||
1637 | err_close_tx_cqs: | |
1638 | for (tc--; tc >= 0; tc--) | |
1639 | mlx5e_close_cq(&c->sq[tc].cq); | |
1640 | ||
1641 | return err; | |
1642 | } | |
1643 | ||
1644 | static void mlx5e_close_tx_cqs(struct mlx5e_channel *c) | |
1645 | { | |
1646 | int tc; | |
1647 | ||
1648 | for (tc = 0; tc < c->num_tc; tc++) | |
1649 | mlx5e_close_cq(&c->sq[tc].cq); | |
1650 | } | |
1651 | ||
1652 | static int mlx5e_open_sqs(struct mlx5e_channel *c, | |
1653 | struct mlx5e_params *params, | |
1654 | struct mlx5e_channel_param *cparam) | |
1655 | { | |
1656 | int err; | |
1657 | int tc; | |
1658 | ||
1659 | for (tc = 0; tc < params->num_tc; tc++) { | |
1660 | int txq_ix = c->ix + tc * params->num_channels; | |
1661 | ||
1662 | err = mlx5e_open_txqsq(c, c->priv->tisn[tc], txq_ix, | |
1663 | params, &cparam->sq, &c->sq[tc]); | |
1664 | if (err) | |
1665 | goto err_close_sqs; | |
1666 | } | |
1667 | ||
1668 | return 0; | |
1669 | ||
1670 | err_close_sqs: | |
1671 | for (tc--; tc >= 0; tc--) | |
1672 | mlx5e_close_txqsq(&c->sq[tc]); | |
1673 | ||
1674 | return err; | |
1675 | } | |
1676 | ||
1677 | static void mlx5e_close_sqs(struct mlx5e_channel *c) | |
1678 | { | |
1679 | int tc; | |
1680 | ||
1681 | for (tc = 0; tc < c->num_tc; tc++) | |
1682 | mlx5e_close_txqsq(&c->sq[tc]); | |
1683 | } | |
1684 | ||
1685 | static int mlx5e_set_sq_maxrate(struct net_device *dev, | |
1686 | struct mlx5e_txqsq *sq, u32 rate) | |
1687 | { | |
1688 | struct mlx5e_priv *priv = netdev_priv(dev); | |
1689 | struct mlx5_core_dev *mdev = priv->mdev; | |
1690 | struct mlx5e_modify_sq_param msp = {0}; | |
1691 | u16 rl_index = 0; | |
1692 | int err; | |
1693 | ||
1694 | if (rate == sq->rate_limit) | |
1695 | /* nothing to do */ | |
1696 | return 0; | |
1697 | ||
1698 | if (sq->rate_limit) | |
1699 | /* remove current rl index to free space to next ones */ | |
1700 | mlx5_rl_remove_rate(mdev, sq->rate_limit); | |
1701 | ||
1702 | sq->rate_limit = 0; | |
1703 | ||
1704 | if (rate) { | |
1705 | err = mlx5_rl_add_rate(mdev, rate, &rl_index); | |
1706 | if (err) { | |
1707 | netdev_err(dev, "Failed configuring rate %u: %d\n", | |
1708 | rate, err); | |
1709 | return err; | |
1710 | } | |
1711 | } | |
1712 | ||
1713 | msp.curr_state = MLX5_SQC_STATE_RDY; | |
1714 | msp.next_state = MLX5_SQC_STATE_RDY; | |
1715 | msp.rl_index = rl_index; | |
1716 | msp.rl_update = true; | |
1717 | err = mlx5e_modify_sq(mdev, sq->sqn, &msp); | |
1718 | if (err) { | |
1719 | netdev_err(dev, "Failed configuring rate %u: %d\n", | |
1720 | rate, err); | |
1721 | /* remove the rate from the table */ | |
1722 | if (rate) | |
1723 | mlx5_rl_remove_rate(mdev, rate); | |
1724 | return err; | |
1725 | } | |
1726 | ||
1727 | sq->rate_limit = rate; | |
1728 | return 0; | |
1729 | } | |
1730 | ||
1731 | static int mlx5e_set_tx_maxrate(struct net_device *dev, int index, u32 rate) | |
1732 | { | |
1733 | struct mlx5e_priv *priv = netdev_priv(dev); | |
1734 | struct mlx5_core_dev *mdev = priv->mdev; | |
1735 | struct mlx5e_txqsq *sq = priv->txq2sq[index]; | |
1736 | int err = 0; | |
1737 | ||
1738 | if (!mlx5_rl_is_supported(mdev)) { | |
1739 | netdev_err(dev, "Rate limiting is not supported on this device\n"); | |
1740 | return -EINVAL; | |
1741 | } | |
1742 | ||
1743 | /* rate is given in Mb/sec, HW config is in Kb/sec */ | |
1744 | rate = rate << 10; | |
1745 | ||
1746 | /* Check whether rate in valid range, 0 is always valid */ | |
1747 | if (rate && !mlx5_rl_is_in_range(mdev, rate)) { | |
1748 | netdev_err(dev, "TX rate %u, is not in range\n", rate); | |
1749 | return -ERANGE; | |
1750 | } | |
1751 | ||
1752 | mutex_lock(&priv->state_lock); | |
1753 | if (test_bit(MLX5E_STATE_OPENED, &priv->state)) | |
1754 | err = mlx5e_set_sq_maxrate(dev, sq, rate); | |
1755 | if (!err) | |
1756 | priv->tx_rates[index] = rate; | |
1757 | mutex_unlock(&priv->state_lock); | |
1758 | ||
1759 | return err; | |
1760 | } | |
1761 | ||
1762 | static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix, | |
1763 | struct mlx5e_params *params, | |
1764 | struct mlx5e_channel_param *cparam, | |
1765 | struct mlx5e_channel **cp) | |
1766 | { | |
1767 | struct mlx5e_cq_moder icocq_moder = {0, 0}; | |
1768 | struct net_device *netdev = priv->netdev; | |
1769 | int cpu = mlx5e_get_cpu(priv, ix); | |
1770 | struct mlx5e_channel *c; | |
1771 | unsigned int irq; | |
1772 | int err; | |
1773 | int eqn; | |
1774 | ||
1775 | err = mlx5_vector2eqn(priv->mdev, ix, &eqn, &irq); | |
1776 | if (err) | |
1777 | return err; | |
1778 | ||
1779 | c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu)); | |
1780 | if (!c) | |
1781 | return -ENOMEM; | |
1782 | ||
1783 | c->priv = priv; | |
1784 | c->mdev = priv->mdev; | |
1785 | c->tstamp = &priv->tstamp; | |
1786 | c->ix = ix; | |
1787 | c->cpu = cpu; | |
1788 | c->pdev = &priv->mdev->pdev->dev; | |
1789 | c->netdev = priv->netdev; | |
1790 | c->mkey_be = cpu_to_be32(priv->mdev->mlx5e_res.mkey.key); | |
1791 | c->num_tc = params->num_tc; | |
1792 | c->xdp = !!params->xdp_prog; | |
1793 | ||
1794 | c->irq_desc = irq_to_desc(irq); | |
1795 | ||
1796 | netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64); | |
1797 | ||
1798 | err = mlx5e_open_cq(c, icocq_moder, &cparam->icosq_cq, &c->icosq.cq); | |
1799 | if (err) | |
1800 | goto err_napi_del; | |
1801 | ||
1802 | err = mlx5e_open_tx_cqs(c, params, cparam); | |
1803 | if (err) | |
1804 | goto err_close_icosq_cq; | |
1805 | ||
1806 | err = mlx5e_open_cq(c, params->rx_cq_moderation, &cparam->rx_cq, &c->rq.cq); | |
1807 | if (err) | |
1808 | goto err_close_tx_cqs; | |
1809 | ||
1810 | /* XDP SQ CQ params are same as normal TXQ sq CQ params */ | |
1811 | err = c->xdp ? mlx5e_open_cq(c, params->tx_cq_moderation, | |
1812 | &cparam->tx_cq, &c->rq.xdpsq.cq) : 0; | |
1813 | if (err) | |
1814 | goto err_close_rx_cq; | |
1815 | ||
1816 | napi_enable(&c->napi); | |
1817 | ||
1818 | err = mlx5e_open_icosq(c, params, &cparam->icosq, &c->icosq); | |
1819 | if (err) | |
1820 | goto err_disable_napi; | |
1821 | ||
1822 | err = mlx5e_open_sqs(c, params, cparam); | |
1823 | if (err) | |
1824 | goto err_close_icosq; | |
1825 | ||
1826 | err = c->xdp ? mlx5e_open_xdpsq(c, params, &cparam->xdp_sq, &c->rq.xdpsq) : 0; | |
1827 | if (err) | |
1828 | goto err_close_sqs; | |
1829 | ||
1830 | err = mlx5e_open_rq(c, params, &cparam->rq, &c->rq); | |
1831 | if (err) | |
1832 | goto err_close_xdp_sq; | |
1833 | ||
1834 | *cp = c; | |
1835 | ||
1836 | return 0; | |
1837 | err_close_xdp_sq: | |
1838 | if (c->xdp) | |
1839 | mlx5e_close_xdpsq(&c->rq.xdpsq); | |
1840 | ||
1841 | err_close_sqs: | |
1842 | mlx5e_close_sqs(c); | |
1843 | ||
1844 | err_close_icosq: | |
1845 | mlx5e_close_icosq(&c->icosq); | |
1846 | ||
1847 | err_disable_napi: | |
1848 | napi_disable(&c->napi); | |
1849 | if (c->xdp) | |
1850 | mlx5e_close_cq(&c->rq.xdpsq.cq); | |
1851 | ||
1852 | err_close_rx_cq: | |
1853 | mlx5e_close_cq(&c->rq.cq); | |
1854 | ||
1855 | err_close_tx_cqs: | |
1856 | mlx5e_close_tx_cqs(c); | |
1857 | ||
1858 | err_close_icosq_cq: | |
1859 | mlx5e_close_cq(&c->icosq.cq); | |
1860 | ||
1861 | err_napi_del: | |
1862 | netif_napi_del(&c->napi); | |
1863 | kfree(c); | |
1864 | ||
1865 | return err; | |
1866 | } | |
1867 | ||
1868 | static void mlx5e_activate_channel(struct mlx5e_channel *c) | |
1869 | { | |
1870 | int tc; | |
1871 | ||
1872 | for (tc = 0; tc < c->num_tc; tc++) | |
1873 | mlx5e_activate_txqsq(&c->sq[tc]); | |
1874 | mlx5e_activate_rq(&c->rq); | |
1875 | netif_set_xps_queue(c->netdev, get_cpu_mask(c->cpu), c->ix); | |
1876 | } | |
1877 | ||
1878 | static void mlx5e_deactivate_channel(struct mlx5e_channel *c) | |
1879 | { | |
1880 | int tc; | |
1881 | ||
1882 | mlx5e_deactivate_rq(&c->rq); | |
1883 | for (tc = 0; tc < c->num_tc; tc++) | |
1884 | mlx5e_deactivate_txqsq(&c->sq[tc]); | |
1885 | } | |
1886 | ||
1887 | static void mlx5e_close_channel(struct mlx5e_channel *c) | |
1888 | { | |
1889 | mlx5e_close_rq(&c->rq); | |
1890 | if (c->xdp) | |
1891 | mlx5e_close_xdpsq(&c->rq.xdpsq); | |
1892 | mlx5e_close_sqs(c); | |
1893 | mlx5e_close_icosq(&c->icosq); | |
1894 | napi_disable(&c->napi); | |
1895 | if (c->xdp) | |
1896 | mlx5e_close_cq(&c->rq.xdpsq.cq); | |
1897 | mlx5e_close_cq(&c->rq.cq); | |
1898 | mlx5e_close_tx_cqs(c); | |
1899 | mlx5e_close_cq(&c->icosq.cq); | |
1900 | netif_napi_del(&c->napi); | |
1901 | ||
1902 | kfree(c); | |
1903 | } | |
1904 | ||
1905 | static void mlx5e_build_rq_param(struct mlx5e_priv *priv, | |
1906 | struct mlx5e_params *params, | |
1907 | struct mlx5e_rq_param *param) | |
1908 | { | |
1909 | void *rqc = param->rqc; | |
1910 | void *wq = MLX5_ADDR_OF(rqc, rqc, wq); | |
1911 | ||
1912 | switch (params->rq_wq_type) { | |
1913 | case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ: | |
1914 | MLX5_SET(wq, wq, log_wqe_num_of_strides, params->mpwqe_log_num_strides - 9); | |
1915 | MLX5_SET(wq, wq, log_wqe_stride_size, params->mpwqe_log_stride_sz - 6); | |
1916 | MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ); | |
1917 | break; | |
1918 | default: /* MLX5_WQ_TYPE_LINKED_LIST */ | |
1919 | MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST); | |
1920 | } | |
1921 | ||
1922 | MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN); | |
1923 | MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe))); | |
1924 | MLX5_SET(wq, wq, log_wq_sz, params->log_rq_size); | |
1925 | MLX5_SET(wq, wq, pd, priv->mdev->mlx5e_res.pdn); | |
1926 | MLX5_SET(rqc, rqc, counter_set_id, priv->q_counter); | |
1927 | MLX5_SET(rqc, rqc, vsd, params->vlan_strip_disable); | |
1928 | MLX5_SET(rqc, rqc, scatter_fcs, params->scatter_fcs_en); | |
1929 | ||
1930 | param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev); | |
1931 | param->wq.linear = 1; | |
1932 | } | |
1933 | ||
1934 | static void mlx5e_build_drop_rq_param(struct mlx5_core_dev *mdev, | |
1935 | struct mlx5e_rq_param *param) | |
1936 | { | |
1937 | void *rqc = param->rqc; | |
1938 | void *wq = MLX5_ADDR_OF(rqc, rqc, wq); | |
1939 | ||
1940 | MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST); | |
1941 | MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe))); | |
1942 | ||
1943 | param->wq.buf_numa_node = dev_to_node(&mdev->pdev->dev); | |
1944 | } | |
1945 | ||
1946 | static void mlx5e_build_sq_param_common(struct mlx5e_priv *priv, | |
1947 | struct mlx5e_sq_param *param) | |
1948 | { | |
1949 | void *sqc = param->sqc; | |
1950 | void *wq = MLX5_ADDR_OF(sqc, sqc, wq); | |
1951 | ||
1952 | MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB)); | |
1953 | MLX5_SET(wq, wq, pd, priv->mdev->mlx5e_res.pdn); | |
1954 | ||
1955 | param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev); | |
1956 | } | |
1957 | ||
1958 | static void mlx5e_build_sq_param(struct mlx5e_priv *priv, | |
1959 | struct mlx5e_params *params, | |
1960 | struct mlx5e_sq_param *param) | |
1961 | { | |
1962 | void *sqc = param->sqc; | |
1963 | void *wq = MLX5_ADDR_OF(sqc, sqc, wq); | |
1964 | ||
1965 | mlx5e_build_sq_param_common(priv, param); | |
1966 | MLX5_SET(wq, wq, log_wq_sz, params->log_sq_size); | |
1967 | MLX5_SET(sqc, sqc, allow_swp, !!MLX5_IPSEC_DEV(priv->mdev)); | |
1968 | } | |
1969 | ||
1970 | static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv, | |
1971 | struct mlx5e_cq_param *param) | |
1972 | { | |
1973 | void *cqc = param->cqc; | |
1974 | ||
1975 | MLX5_SET(cqc, cqc, uar_page, priv->mdev->priv.uar->index); | |
1976 | } | |
1977 | ||
1978 | static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv, | |
1979 | struct mlx5e_params *params, | |
1980 | struct mlx5e_cq_param *param) | |
1981 | { | |
1982 | void *cqc = param->cqc; | |
1983 | u8 log_cq_size; | |
1984 | ||
1985 | switch (params->rq_wq_type) { | |
1986 | case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ: | |
1987 | log_cq_size = params->log_rq_size + params->mpwqe_log_num_strides; | |
1988 | break; | |
1989 | default: /* MLX5_WQ_TYPE_LINKED_LIST */ | |
1990 | log_cq_size = params->log_rq_size; | |
1991 | } | |
1992 | ||
1993 | MLX5_SET(cqc, cqc, log_cq_size, log_cq_size); | |
1994 | if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS)) { | |
1995 | MLX5_SET(cqc, cqc, mini_cqe_res_format, MLX5_CQE_FORMAT_CSUM); | |
1996 | MLX5_SET(cqc, cqc, cqe_comp_en, 1); | |
1997 | } | |
1998 | ||
1999 | mlx5e_build_common_cq_param(priv, param); | |
2000 | param->cq_period_mode = params->rx_cq_moderation.cq_period_mode; | |
2001 | } | |
2002 | ||
2003 | static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv, | |
2004 | struct mlx5e_params *params, | |
2005 | struct mlx5e_cq_param *param) | |
2006 | { | |
2007 | void *cqc = param->cqc; | |
2008 | ||
2009 | MLX5_SET(cqc, cqc, log_cq_size, params->log_sq_size); | |
2010 | ||
2011 | mlx5e_build_common_cq_param(priv, param); | |
2012 | param->cq_period_mode = params->tx_cq_moderation.cq_period_mode; | |
2013 | } | |
2014 | ||
2015 | static void mlx5e_build_ico_cq_param(struct mlx5e_priv *priv, | |
2016 | u8 log_wq_size, | |
2017 | struct mlx5e_cq_param *param) | |
2018 | { | |
2019 | void *cqc = param->cqc; | |
2020 | ||
2021 | MLX5_SET(cqc, cqc, log_cq_size, log_wq_size); | |
2022 | ||
2023 | mlx5e_build_common_cq_param(priv, param); | |
2024 | ||
2025 | param->cq_period_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE; | |
2026 | } | |
2027 | ||
2028 | static void mlx5e_build_icosq_param(struct mlx5e_priv *priv, | |
2029 | u8 log_wq_size, | |
2030 | struct mlx5e_sq_param *param) | |
2031 | { | |
2032 | void *sqc = param->sqc; | |
2033 | void *wq = MLX5_ADDR_OF(sqc, sqc, wq); | |
2034 | ||
2035 | mlx5e_build_sq_param_common(priv, param); | |
2036 | ||
2037 | MLX5_SET(wq, wq, log_wq_sz, log_wq_size); | |
2038 | MLX5_SET(sqc, sqc, reg_umr, MLX5_CAP_ETH(priv->mdev, reg_umr_sq)); | |
2039 | } | |
2040 | ||
2041 | static void mlx5e_build_xdpsq_param(struct mlx5e_priv *priv, | |
2042 | struct mlx5e_params *params, | |
2043 | struct mlx5e_sq_param *param) | |
2044 | { | |
2045 | void *sqc = param->sqc; | |
2046 | void *wq = MLX5_ADDR_OF(sqc, sqc, wq); | |
2047 | ||
2048 | mlx5e_build_sq_param_common(priv, param); | |
2049 | MLX5_SET(wq, wq, log_wq_sz, params->log_sq_size); | |
2050 | } | |
2051 | ||
2052 | static void mlx5e_build_channel_param(struct mlx5e_priv *priv, | |
2053 | struct mlx5e_params *params, | |
2054 | struct mlx5e_channel_param *cparam) | |
2055 | { | |
2056 | u8 icosq_log_wq_sz = MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE; | |
2057 | ||
2058 | mlx5e_build_rq_param(priv, params, &cparam->rq); | |
2059 | mlx5e_build_sq_param(priv, params, &cparam->sq); | |
2060 | mlx5e_build_xdpsq_param(priv, params, &cparam->xdp_sq); | |
2061 | mlx5e_build_icosq_param(priv, icosq_log_wq_sz, &cparam->icosq); | |
2062 | mlx5e_build_rx_cq_param(priv, params, &cparam->rx_cq); | |
2063 | mlx5e_build_tx_cq_param(priv, params, &cparam->tx_cq); | |
2064 | mlx5e_build_ico_cq_param(priv, icosq_log_wq_sz, &cparam->icosq_cq); | |
2065 | } | |
2066 | ||
2067 | int mlx5e_open_channels(struct mlx5e_priv *priv, | |
2068 | struct mlx5e_channels *chs) | |
2069 | { | |
2070 | struct mlx5e_channel_param *cparam; | |
2071 | int err = -ENOMEM; | |
2072 | int i; | |
2073 | ||
2074 | chs->num = chs->params.num_channels; | |
2075 | ||
2076 | chs->c = kcalloc(chs->num, sizeof(struct mlx5e_channel *), GFP_KERNEL); | |
2077 | cparam = kzalloc(sizeof(struct mlx5e_channel_param), GFP_KERNEL); | |
2078 | if (!chs->c || !cparam) | |
2079 | goto err_free; | |
2080 | ||
2081 | mlx5e_build_channel_param(priv, &chs->params, cparam); | |
2082 | for (i = 0; i < chs->num; i++) { | |
2083 | err = mlx5e_open_channel(priv, i, &chs->params, cparam, &chs->c[i]); | |
2084 | if (err) | |
2085 | goto err_close_channels; | |
2086 | } | |
2087 | ||
2088 | kfree(cparam); | |
2089 | return 0; | |
2090 | ||
2091 | err_close_channels: | |
2092 | for (i--; i >= 0; i--) | |
2093 | mlx5e_close_channel(chs->c[i]); | |
2094 | ||
2095 | err_free: | |
2096 | kfree(chs->c); | |
2097 | kfree(cparam); | |
2098 | chs->num = 0; | |
2099 | return err; | |
2100 | } | |
2101 | ||
2102 | static void mlx5e_activate_channels(struct mlx5e_channels *chs) | |
2103 | { | |
2104 | int i; | |
2105 | ||
2106 | for (i = 0; i < chs->num; i++) | |
2107 | mlx5e_activate_channel(chs->c[i]); | |
2108 | } | |
2109 | ||
2110 | static int mlx5e_wait_channels_min_rx_wqes(struct mlx5e_channels *chs) | |
2111 | { | |
2112 | int err = 0; | |
2113 | int i; | |
2114 | ||
2115 | for (i = 0; i < chs->num; i++) { | |
2116 | err = mlx5e_wait_for_min_rx_wqes(&chs->c[i]->rq); | |
2117 | if (err) | |
2118 | break; | |
2119 | } | |
2120 | ||
2121 | return err; | |
2122 | } | |
2123 | ||
2124 | static void mlx5e_deactivate_channels(struct mlx5e_channels *chs) | |
2125 | { | |
2126 | int i; | |
2127 | ||
2128 | for (i = 0; i < chs->num; i++) | |
2129 | mlx5e_deactivate_channel(chs->c[i]); | |
2130 | } | |
2131 | ||
2132 | void mlx5e_close_channels(struct mlx5e_channels *chs) | |
2133 | { | |
2134 | int i; | |
2135 | ||
2136 | for (i = 0; i < chs->num; i++) | |
2137 | mlx5e_close_channel(chs->c[i]); | |
2138 | ||
2139 | kfree(chs->c); | |
2140 | chs->num = 0; | |
2141 | } | |
2142 | ||
2143 | static int | |
2144 | mlx5e_create_rqt(struct mlx5e_priv *priv, int sz, struct mlx5e_rqt *rqt) | |
2145 | { | |
2146 | struct mlx5_core_dev *mdev = priv->mdev; | |
2147 | void *rqtc; | |
2148 | int inlen; | |
2149 | int err; | |
2150 | u32 *in; | |
2151 | int i; | |
2152 | ||
2153 | inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz; | |
2154 | in = kvzalloc(inlen, GFP_KERNEL); | |
2155 | if (!in) | |
2156 | return -ENOMEM; | |
2157 | ||
2158 | rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context); | |
2159 | ||
2160 | MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); | |
2161 | MLX5_SET(rqtc, rqtc, rqt_max_size, sz); | |
2162 | ||
2163 | for (i = 0; i < sz; i++) | |
2164 | MLX5_SET(rqtc, rqtc, rq_num[i], priv->drop_rq.rqn); | |
2165 | ||
2166 | err = mlx5_core_create_rqt(mdev, in, inlen, &rqt->rqtn); | |
2167 | if (!err) | |
2168 | rqt->enabled = true; | |
2169 | ||
2170 | kvfree(in); | |
2171 | return err; | |
2172 | } | |
2173 | ||
2174 | void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt) | |
2175 | { | |
2176 | rqt->enabled = false; | |
2177 | mlx5_core_destroy_rqt(priv->mdev, rqt->rqtn); | |
2178 | } | |
2179 | ||
2180 | int mlx5e_create_indirect_rqt(struct mlx5e_priv *priv) | |
2181 | { | |
2182 | struct mlx5e_rqt *rqt = &priv->indir_rqt; | |
2183 | int err; | |
2184 | ||
2185 | err = mlx5e_create_rqt(priv, MLX5E_INDIR_RQT_SIZE, rqt); | |
2186 | if (err) | |
2187 | mlx5_core_warn(priv->mdev, "create indirect rqts failed, %d\n", err); | |
2188 | return err; | |
2189 | } | |
2190 | ||
2191 | int mlx5e_create_direct_rqts(struct mlx5e_priv *priv) | |
2192 | { | |
2193 | struct mlx5e_rqt *rqt; | |
2194 | int err; | |
2195 | int ix; | |
2196 | ||
2197 | for (ix = 0; ix < priv->profile->max_nch(priv->mdev); ix++) { | |
2198 | rqt = &priv->direct_tir[ix].rqt; | |
2199 | err = mlx5e_create_rqt(priv, 1 /*size */, rqt); | |
2200 | if (err) | |
2201 | goto err_destroy_rqts; | |
2202 | } | |
2203 | ||
2204 | return 0; | |
2205 | ||
2206 | err_destroy_rqts: | |
2207 | mlx5_core_warn(priv->mdev, "create direct rqts failed, %d\n", err); | |
2208 | for (ix--; ix >= 0; ix--) | |
2209 | mlx5e_destroy_rqt(priv, &priv->direct_tir[ix].rqt); | |
2210 | ||
2211 | return err; | |
2212 | } | |
2213 | ||
2214 | void mlx5e_destroy_direct_rqts(struct mlx5e_priv *priv) | |
2215 | { | |
2216 | int i; | |
2217 | ||
2218 | for (i = 0; i < priv->profile->max_nch(priv->mdev); i++) | |
2219 | mlx5e_destroy_rqt(priv, &priv->direct_tir[i].rqt); | |
2220 | } | |
2221 | ||
2222 | static int mlx5e_rx_hash_fn(int hfunc) | |
2223 | { | |
2224 | return (hfunc == ETH_RSS_HASH_TOP) ? | |
2225 | MLX5_RX_HASH_FN_TOEPLITZ : | |
2226 | MLX5_RX_HASH_FN_INVERTED_XOR8; | |
2227 | } | |
2228 | ||
2229 | static int mlx5e_bits_invert(unsigned long a, int size) | |
2230 | { | |
2231 | int inv = 0; | |
2232 | int i; | |
2233 | ||
2234 | for (i = 0; i < size; i++) | |
2235 | inv |= (test_bit(size - i - 1, &a) ? 1 : 0) << i; | |
2236 | ||
2237 | return inv; | |
2238 | } | |
2239 | ||
2240 | static void mlx5e_fill_rqt_rqns(struct mlx5e_priv *priv, int sz, | |
2241 | struct mlx5e_redirect_rqt_param rrp, void *rqtc) | |
2242 | { | |
2243 | int i; | |
2244 | ||
2245 | for (i = 0; i < sz; i++) { | |
2246 | u32 rqn; | |
2247 | ||
2248 | if (rrp.is_rss) { | |
2249 | int ix = i; | |
2250 | ||
2251 | if (rrp.rss.hfunc == ETH_RSS_HASH_XOR) | |
2252 | ix = mlx5e_bits_invert(i, ilog2(sz)); | |
2253 | ||
2254 | ix = priv->channels.params.indirection_rqt[ix]; | |
2255 | rqn = rrp.rss.channels->c[ix]->rq.rqn; | |
2256 | } else { | |
2257 | rqn = rrp.rqn; | |
2258 | } | |
2259 | MLX5_SET(rqtc, rqtc, rq_num[i], rqn); | |
2260 | } | |
2261 | } | |
2262 | ||
2263 | int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz, | |
2264 | struct mlx5e_redirect_rqt_param rrp) | |
2265 | { | |
2266 | struct mlx5_core_dev *mdev = priv->mdev; | |
2267 | void *rqtc; | |
2268 | int inlen; | |
2269 | u32 *in; | |
2270 | int err; | |
2271 | ||
2272 | inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz; | |
2273 | in = kvzalloc(inlen, GFP_KERNEL); | |
2274 | if (!in) | |
2275 | return -ENOMEM; | |
2276 | ||
2277 | rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx); | |
2278 | ||
2279 | MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); | |
2280 | MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1); | |
2281 | mlx5e_fill_rqt_rqns(priv, sz, rrp, rqtc); | |
2282 | err = mlx5_core_modify_rqt(mdev, rqtn, in, inlen); | |
2283 | ||
2284 | kvfree(in); | |
2285 | return err; | |
2286 | } | |
2287 | ||
2288 | static u32 mlx5e_get_direct_rqn(struct mlx5e_priv *priv, int ix, | |
2289 | struct mlx5e_redirect_rqt_param rrp) | |
2290 | { | |
2291 | if (!rrp.is_rss) | |
2292 | return rrp.rqn; | |
2293 | ||
2294 | if (ix >= rrp.rss.channels->num) | |
2295 | return priv->drop_rq.rqn; | |
2296 | ||
2297 | return rrp.rss.channels->c[ix]->rq.rqn; | |
2298 | } | |
2299 | ||
2300 | static void mlx5e_redirect_rqts(struct mlx5e_priv *priv, | |
2301 | struct mlx5e_redirect_rqt_param rrp) | |
2302 | { | |
2303 | u32 rqtn; | |
2304 | int ix; | |
2305 | ||
2306 | if (priv->indir_rqt.enabled) { | |
2307 | /* RSS RQ table */ | |
2308 | rqtn = priv->indir_rqt.rqtn; | |
2309 | mlx5e_redirect_rqt(priv, rqtn, MLX5E_INDIR_RQT_SIZE, rrp); | |
2310 | } | |
2311 | ||
2312 | for (ix = 0; ix < priv->profile->max_nch(priv->mdev); ix++) { | |
2313 | struct mlx5e_redirect_rqt_param direct_rrp = { | |
2314 | .is_rss = false, | |
2315 | { | |
2316 | .rqn = mlx5e_get_direct_rqn(priv, ix, rrp) | |
2317 | }, | |
2318 | }; | |
2319 | ||
2320 | /* Direct RQ Tables */ | |
2321 | if (!priv->direct_tir[ix].rqt.enabled) | |
2322 | continue; | |
2323 | ||
2324 | rqtn = priv->direct_tir[ix].rqt.rqtn; | |
2325 | mlx5e_redirect_rqt(priv, rqtn, 1, direct_rrp); | |
2326 | } | |
2327 | } | |
2328 | ||
2329 | static void mlx5e_redirect_rqts_to_channels(struct mlx5e_priv *priv, | |
2330 | struct mlx5e_channels *chs) | |
2331 | { | |
2332 | struct mlx5e_redirect_rqt_param rrp = { | |
2333 | .is_rss = true, | |
2334 | { | |
2335 | .rss = { | |
2336 | .channels = chs, | |
2337 | .hfunc = chs->params.rss_hfunc, | |
2338 | } | |
2339 | }, | |
2340 | }; | |
2341 | ||
2342 | mlx5e_redirect_rqts(priv, rrp); | |
2343 | } | |
2344 | ||
2345 | static void mlx5e_redirect_rqts_to_drop(struct mlx5e_priv *priv) | |
2346 | { | |
2347 | struct mlx5e_redirect_rqt_param drop_rrp = { | |
2348 | .is_rss = false, | |
2349 | { | |
2350 | .rqn = priv->drop_rq.rqn, | |
2351 | }, | |
2352 | }; | |
2353 | ||
2354 | mlx5e_redirect_rqts(priv, drop_rrp); | |
2355 | } | |
2356 | ||
2357 | static void mlx5e_build_tir_ctx_lro(struct mlx5e_params *params, void *tirc) | |
2358 | { | |
2359 | if (!params->lro_en) | |
2360 | return; | |
2361 | ||
2362 | #define ROUGH_MAX_L2_L3_HDR_SZ 256 | |
2363 | ||
2364 | MLX5_SET(tirc, tirc, lro_enable_mask, | |
2365 | MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO | | |
2366 | MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO); | |
2367 | MLX5_SET(tirc, tirc, lro_max_ip_payload_size, | |
2368 | (params->lro_wqe_sz - ROUGH_MAX_L2_L3_HDR_SZ) >> 8); | |
2369 | MLX5_SET(tirc, tirc, lro_timeout_period_usecs, params->lro_timeout); | |
2370 | } | |
2371 | ||
2372 | void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_params *params, | |
2373 | enum mlx5e_traffic_types tt, | |
2374 | void *tirc, bool inner) | |
2375 | { | |
2376 | void *hfso = inner ? MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_inner) : | |
2377 | MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer); | |
2378 | ||
2379 | #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\ | |
2380 | MLX5_HASH_FIELD_SEL_DST_IP) | |
2381 | ||
2382 | #define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\ | |
2383 | MLX5_HASH_FIELD_SEL_DST_IP |\ | |
2384 | MLX5_HASH_FIELD_SEL_L4_SPORT |\ | |
2385 | MLX5_HASH_FIELD_SEL_L4_DPORT) | |
2386 | ||
2387 | #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\ | |
2388 | MLX5_HASH_FIELD_SEL_DST_IP |\ | |
2389 | MLX5_HASH_FIELD_SEL_IPSEC_SPI) | |
2390 | ||
2391 | MLX5_SET(tirc, tirc, rx_hash_fn, mlx5e_rx_hash_fn(params->rss_hfunc)); | |
2392 | if (params->rss_hfunc == ETH_RSS_HASH_TOP) { | |
2393 | void *rss_key = MLX5_ADDR_OF(tirc, tirc, | |
2394 | rx_hash_toeplitz_key); | |
2395 | size_t len = MLX5_FLD_SZ_BYTES(tirc, | |
2396 | rx_hash_toeplitz_key); | |
2397 | ||
2398 | MLX5_SET(tirc, tirc, rx_hash_symmetric, 1); | |
2399 | memcpy(rss_key, params->toeplitz_hash_key, len); | |
2400 | } | |
2401 | ||
2402 | switch (tt) { | |
2403 | case MLX5E_TT_IPV4_TCP: | |
2404 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
2405 | MLX5_L3_PROT_TYPE_IPV4); | |
2406 | MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, | |
2407 | MLX5_L4_PROT_TYPE_TCP); | |
2408 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
2409 | MLX5_HASH_IP_L4PORTS); | |
2410 | break; | |
2411 | ||
2412 | case MLX5E_TT_IPV6_TCP: | |
2413 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
2414 | MLX5_L3_PROT_TYPE_IPV6); | |
2415 | MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, | |
2416 | MLX5_L4_PROT_TYPE_TCP); | |
2417 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
2418 | MLX5_HASH_IP_L4PORTS); | |
2419 | break; | |
2420 | ||
2421 | case MLX5E_TT_IPV4_UDP: | |
2422 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
2423 | MLX5_L3_PROT_TYPE_IPV4); | |
2424 | MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, | |
2425 | MLX5_L4_PROT_TYPE_UDP); | |
2426 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
2427 | MLX5_HASH_IP_L4PORTS); | |
2428 | break; | |
2429 | ||
2430 | case MLX5E_TT_IPV6_UDP: | |
2431 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
2432 | MLX5_L3_PROT_TYPE_IPV6); | |
2433 | MLX5_SET(rx_hash_field_select, hfso, l4_prot_type, | |
2434 | MLX5_L4_PROT_TYPE_UDP); | |
2435 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
2436 | MLX5_HASH_IP_L4PORTS); | |
2437 | break; | |
2438 | ||
2439 | case MLX5E_TT_IPV4_IPSEC_AH: | |
2440 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
2441 | MLX5_L3_PROT_TYPE_IPV4); | |
2442 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
2443 | MLX5_HASH_IP_IPSEC_SPI); | |
2444 | break; | |
2445 | ||
2446 | case MLX5E_TT_IPV6_IPSEC_AH: | |
2447 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
2448 | MLX5_L3_PROT_TYPE_IPV6); | |
2449 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
2450 | MLX5_HASH_IP_IPSEC_SPI); | |
2451 | break; | |
2452 | ||
2453 | case MLX5E_TT_IPV4_IPSEC_ESP: | |
2454 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
2455 | MLX5_L3_PROT_TYPE_IPV4); | |
2456 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
2457 | MLX5_HASH_IP_IPSEC_SPI); | |
2458 | break; | |
2459 | ||
2460 | case MLX5E_TT_IPV6_IPSEC_ESP: | |
2461 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
2462 | MLX5_L3_PROT_TYPE_IPV6); | |
2463 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
2464 | MLX5_HASH_IP_IPSEC_SPI); | |
2465 | break; | |
2466 | ||
2467 | case MLX5E_TT_IPV4: | |
2468 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
2469 | MLX5_L3_PROT_TYPE_IPV4); | |
2470 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
2471 | MLX5_HASH_IP); | |
2472 | break; | |
2473 | ||
2474 | case MLX5E_TT_IPV6: | |
2475 | MLX5_SET(rx_hash_field_select, hfso, l3_prot_type, | |
2476 | MLX5_L3_PROT_TYPE_IPV6); | |
2477 | MLX5_SET(rx_hash_field_select, hfso, selected_fields, | |
2478 | MLX5_HASH_IP); | |
2479 | break; | |
2480 | default: | |
2481 | WARN_ONCE(true, "%s: bad traffic type!\n", __func__); | |
2482 | } | |
2483 | } | |
2484 | ||
2485 | static int mlx5e_modify_tirs_lro(struct mlx5e_priv *priv) | |
2486 | { | |
2487 | struct mlx5_core_dev *mdev = priv->mdev; | |
2488 | ||
2489 | void *in; | |
2490 | void *tirc; | |
2491 | int inlen; | |
2492 | int err; | |
2493 | int tt; | |
2494 | int ix; | |
2495 | ||
2496 | inlen = MLX5_ST_SZ_BYTES(modify_tir_in); | |
2497 | in = kvzalloc(inlen, GFP_KERNEL); | |
2498 | if (!in) | |
2499 | return -ENOMEM; | |
2500 | ||
2501 | MLX5_SET(modify_tir_in, in, bitmask.lro, 1); | |
2502 | tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx); | |
2503 | ||
2504 | mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc); | |
2505 | ||
2506 | for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) { | |
2507 | err = mlx5_core_modify_tir(mdev, priv->indir_tir[tt].tirn, in, | |
2508 | inlen); | |
2509 | if (err) | |
2510 | goto free_in; | |
2511 | } | |
2512 | ||
2513 | for (ix = 0; ix < priv->profile->max_nch(priv->mdev); ix++) { | |
2514 | err = mlx5_core_modify_tir(mdev, priv->direct_tir[ix].tirn, | |
2515 | in, inlen); | |
2516 | if (err) | |
2517 | goto free_in; | |
2518 | } | |
2519 | ||
2520 | free_in: | |
2521 | kvfree(in); | |
2522 | ||
2523 | return err; | |
2524 | } | |
2525 | ||
2526 | static void mlx5e_build_inner_indir_tir_ctx(struct mlx5e_priv *priv, | |
2527 | enum mlx5e_traffic_types tt, | |
2528 | u32 *tirc) | |
2529 | { | |
2530 | MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn); | |
2531 | ||
2532 | mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc); | |
2533 | ||
2534 | MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT); | |
2535 | MLX5_SET(tirc, tirc, indirect_table, priv->indir_rqt.rqtn); | |
2536 | MLX5_SET(tirc, tirc, tunneled_offload_en, 0x1); | |
2537 | ||
2538 | mlx5e_build_indir_tir_ctx_hash(&priv->channels.params, tt, tirc, true); | |
2539 | } | |
2540 | ||
2541 | static int mlx5e_set_mtu(struct mlx5e_priv *priv, u16 mtu) | |
2542 | { | |
2543 | struct mlx5_core_dev *mdev = priv->mdev; | |
2544 | u16 hw_mtu = MLX5E_SW2HW_MTU(priv, mtu); | |
2545 | int err; | |
2546 | ||
2547 | err = mlx5_set_port_mtu(mdev, hw_mtu, 1); | |
2548 | if (err) | |
2549 | return err; | |
2550 | ||
2551 | /* Update vport context MTU */ | |
2552 | mlx5_modify_nic_vport_mtu(mdev, hw_mtu); | |
2553 | return 0; | |
2554 | } | |
2555 | ||
2556 | static void mlx5e_query_mtu(struct mlx5e_priv *priv, u16 *mtu) | |
2557 | { | |
2558 | struct mlx5_core_dev *mdev = priv->mdev; | |
2559 | u16 hw_mtu = 0; | |
2560 | int err; | |
2561 | ||
2562 | err = mlx5_query_nic_vport_mtu(mdev, &hw_mtu); | |
2563 | if (err || !hw_mtu) /* fallback to port oper mtu */ | |
2564 | mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1); | |
2565 | ||
2566 | *mtu = MLX5E_HW2SW_MTU(priv, hw_mtu); | |
2567 | } | |
2568 | ||
2569 | static int mlx5e_set_dev_port_mtu(struct mlx5e_priv *priv) | |
2570 | { | |
2571 | struct net_device *netdev = priv->netdev; | |
2572 | u16 mtu; | |
2573 | int err; | |
2574 | ||
2575 | err = mlx5e_set_mtu(priv, netdev->mtu); | |
2576 | if (err) | |
2577 | return err; | |
2578 | ||
2579 | mlx5e_query_mtu(priv, &mtu); | |
2580 | if (mtu != netdev->mtu) | |
2581 | netdev_warn(netdev, "%s: VPort MTU %d is different than netdev mtu %d\n", | |
2582 | __func__, mtu, netdev->mtu); | |
2583 | ||
2584 | netdev->mtu = mtu; | |
2585 | return 0; | |
2586 | } | |
2587 | ||
2588 | static void mlx5e_netdev_set_tcs(struct net_device *netdev) | |
2589 | { | |
2590 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
2591 | int nch = priv->channels.params.num_channels; | |
2592 | int ntc = priv->channels.params.num_tc; | |
2593 | int tc; | |
2594 | ||
2595 | netdev_reset_tc(netdev); | |
2596 | ||
2597 | if (ntc == 1) | |
2598 | return; | |
2599 | ||
2600 | netdev_set_num_tc(netdev, ntc); | |
2601 | ||
2602 | /* Map netdev TCs to offset 0 | |
2603 | * We have our own UP to TXQ mapping for QoS | |
2604 | */ | |
2605 | for (tc = 0; tc < ntc; tc++) | |
2606 | netdev_set_tc_queue(netdev, tc, nch, 0); | |
2607 | } | |
2608 | ||
2609 | static void mlx5e_build_channels_tx_maps(struct mlx5e_priv *priv) | |
2610 | { | |
2611 | struct mlx5e_channel *c; | |
2612 | struct mlx5e_txqsq *sq; | |
2613 | int i, tc; | |
2614 | ||
2615 | for (i = 0; i < priv->channels.num; i++) | |
2616 | for (tc = 0; tc < priv->profile->max_tc; tc++) | |
2617 | priv->channel_tc2txq[i][tc] = i + tc * priv->channels.num; | |
2618 | ||
2619 | for (i = 0; i < priv->channels.num; i++) { | |
2620 | c = priv->channels.c[i]; | |
2621 | for (tc = 0; tc < c->num_tc; tc++) { | |
2622 | sq = &c->sq[tc]; | |
2623 | priv->txq2sq[sq->txq_ix] = sq; | |
2624 | } | |
2625 | } | |
2626 | } | |
2627 | ||
2628 | void mlx5e_activate_priv_channels(struct mlx5e_priv *priv) | |
2629 | { | |
2630 | int num_txqs = priv->channels.num * priv->channels.params.num_tc; | |
2631 | struct net_device *netdev = priv->netdev; | |
2632 | ||
2633 | mlx5e_netdev_set_tcs(netdev); | |
2634 | netif_set_real_num_tx_queues(netdev, num_txqs); | |
2635 | netif_set_real_num_rx_queues(netdev, priv->channels.num); | |
2636 | ||
2637 | mlx5e_build_channels_tx_maps(priv); | |
2638 | mlx5e_activate_channels(&priv->channels); | |
2639 | netif_tx_start_all_queues(priv->netdev); | |
2640 | ||
2641 | if (MLX5_ESWITCH_MANAGER(priv->mdev)) | |
2642 | mlx5e_add_sqs_fwd_rules(priv); | |
2643 | ||
2644 | mlx5e_wait_channels_min_rx_wqes(&priv->channels); | |
2645 | mlx5e_redirect_rqts_to_channels(priv, &priv->channels); | |
2646 | } | |
2647 | ||
2648 | void mlx5e_deactivate_priv_channels(struct mlx5e_priv *priv) | |
2649 | { | |
2650 | mlx5e_redirect_rqts_to_drop(priv); | |
2651 | ||
2652 | if (MLX5_ESWITCH_MANAGER(priv->mdev)) | |
2653 | mlx5e_remove_sqs_fwd_rules(priv); | |
2654 | ||
2655 | /* FIXME: This is a W/A only for tx timeout watch dog false alarm when | |
2656 | * polling for inactive tx queues. | |
2657 | */ | |
2658 | netif_tx_stop_all_queues(priv->netdev); | |
2659 | netif_tx_disable(priv->netdev); | |
2660 | mlx5e_deactivate_channels(&priv->channels); | |
2661 | } | |
2662 | ||
2663 | void mlx5e_switch_priv_channels(struct mlx5e_priv *priv, | |
2664 | struct mlx5e_channels *new_chs, | |
2665 | mlx5e_fp_hw_modify hw_modify) | |
2666 | { | |
2667 | struct net_device *netdev = priv->netdev; | |
2668 | int new_num_txqs; | |
2669 | int carrier_ok; | |
2670 | new_num_txqs = new_chs->num * new_chs->params.num_tc; | |
2671 | ||
2672 | carrier_ok = netif_carrier_ok(netdev); | |
2673 | netif_carrier_off(netdev); | |
2674 | ||
2675 | if (new_num_txqs < netdev->real_num_tx_queues) | |
2676 | netif_set_real_num_tx_queues(netdev, new_num_txqs); | |
2677 | ||
2678 | mlx5e_deactivate_priv_channels(priv); | |
2679 | mlx5e_close_channels(&priv->channels); | |
2680 | ||
2681 | priv->channels = *new_chs; | |
2682 | ||
2683 | /* New channels are ready to roll, modify HW settings if needed */ | |
2684 | if (hw_modify) | |
2685 | hw_modify(priv); | |
2686 | ||
2687 | mlx5e_refresh_tirs(priv, false); | |
2688 | mlx5e_activate_priv_channels(priv); | |
2689 | ||
2690 | /* return carrier back if needed */ | |
2691 | if (carrier_ok) | |
2692 | netif_carrier_on(netdev); | |
2693 | } | |
2694 | ||
2695 | void mlx5e_timestamp_init(struct mlx5e_priv *priv) | |
2696 | { | |
2697 | priv->tstamp.tx_type = HWTSTAMP_TX_OFF; | |
2698 | priv->tstamp.rx_filter = HWTSTAMP_FILTER_NONE; | |
2699 | } | |
2700 | ||
2701 | int mlx5e_open_locked(struct net_device *netdev) | |
2702 | { | |
2703 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
2704 | int err; | |
2705 | ||
2706 | set_bit(MLX5E_STATE_OPENED, &priv->state); | |
2707 | ||
2708 | err = mlx5e_open_channels(priv, &priv->channels); | |
2709 | if (err) | |
2710 | goto err_clear_state_opened_flag; | |
2711 | ||
2712 | mlx5e_refresh_tirs(priv, false); | |
2713 | mlx5e_activate_priv_channels(priv); | |
2714 | if (priv->profile->update_carrier) | |
2715 | priv->profile->update_carrier(priv); | |
2716 | ||
2717 | if (priv->profile->update_stats) | |
2718 | queue_delayed_work(priv->wq, &priv->update_stats_work, 0); | |
2719 | ||
2720 | return 0; | |
2721 | ||
2722 | err_clear_state_opened_flag: | |
2723 | clear_bit(MLX5E_STATE_OPENED, &priv->state); | |
2724 | return err; | |
2725 | } | |
2726 | ||
2727 | int mlx5e_open(struct net_device *netdev) | |
2728 | { | |
2729 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
2730 | int err; | |
2731 | ||
2732 | mutex_lock(&priv->state_lock); | |
2733 | err = mlx5e_open_locked(netdev); | |
2734 | if (!err) | |
2735 | mlx5_set_port_admin_status(priv->mdev, MLX5_PORT_UP); | |
2736 | mutex_unlock(&priv->state_lock); | |
2737 | ||
2738 | if (mlx5e_vxlan_allowed(priv->mdev)) | |
2739 | udp_tunnel_get_rx_info(netdev); | |
2740 | ||
2741 | return err; | |
2742 | } | |
2743 | ||
2744 | int mlx5e_close_locked(struct net_device *netdev) | |
2745 | { | |
2746 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
2747 | ||
2748 | /* May already be CLOSED in case a previous configuration operation | |
2749 | * (e.g RX/TX queue size change) that involves close&open failed. | |
2750 | */ | |
2751 | if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) | |
2752 | return 0; | |
2753 | ||
2754 | clear_bit(MLX5E_STATE_OPENED, &priv->state); | |
2755 | ||
2756 | netif_carrier_off(priv->netdev); | |
2757 | mlx5e_deactivate_priv_channels(priv); | |
2758 | mlx5e_close_channels(&priv->channels); | |
2759 | ||
2760 | return 0; | |
2761 | } | |
2762 | ||
2763 | int mlx5e_close(struct net_device *netdev) | |
2764 | { | |
2765 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
2766 | int err; | |
2767 | ||
2768 | if (!netif_device_present(netdev)) | |
2769 | return -ENODEV; | |
2770 | ||
2771 | mutex_lock(&priv->state_lock); | |
2772 | mlx5_set_port_admin_status(priv->mdev, MLX5_PORT_DOWN); | |
2773 | err = mlx5e_close_locked(netdev); | |
2774 | mutex_unlock(&priv->state_lock); | |
2775 | ||
2776 | return err; | |
2777 | } | |
2778 | ||
2779 | static int mlx5e_alloc_drop_rq(struct mlx5_core_dev *mdev, | |
2780 | struct mlx5e_rq *rq, | |
2781 | struct mlx5e_rq_param *param) | |
2782 | { | |
2783 | void *rqc = param->rqc; | |
2784 | void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq); | |
2785 | int err; | |
2786 | ||
2787 | param->wq.db_numa_node = param->wq.buf_numa_node; | |
2788 | ||
2789 | err = mlx5_wq_ll_create(mdev, ¶m->wq, rqc_wq, &rq->wq, | |
2790 | &rq->wq_ctrl); | |
2791 | if (err) | |
2792 | return err; | |
2793 | ||
2794 | rq->mdev = mdev; | |
2795 | ||
2796 | return 0; | |
2797 | } | |
2798 | ||
2799 | static int mlx5e_alloc_drop_cq(struct mlx5_core_dev *mdev, | |
2800 | struct mlx5e_cq *cq, | |
2801 | struct mlx5e_cq_param *param) | |
2802 | { | |
2803 | param->wq.buf_numa_node = dev_to_node(&mdev->pdev->dev); | |
2804 | param->wq.db_numa_node = dev_to_node(&mdev->pdev->dev); | |
2805 | ||
2806 | return mlx5e_alloc_cq_common(mdev, param, cq); | |
2807 | } | |
2808 | ||
2809 | static int mlx5e_open_drop_rq(struct mlx5_core_dev *mdev, | |
2810 | struct mlx5e_rq *drop_rq) | |
2811 | { | |
2812 | struct mlx5e_cq_param cq_param = {}; | |
2813 | struct mlx5e_rq_param rq_param = {}; | |
2814 | struct mlx5e_cq *cq = &drop_rq->cq; | |
2815 | int err; | |
2816 | ||
2817 | mlx5e_build_drop_rq_param(mdev, &rq_param); | |
2818 | ||
2819 | err = mlx5e_alloc_drop_cq(mdev, cq, &cq_param); | |
2820 | if (err) | |
2821 | return err; | |
2822 | ||
2823 | err = mlx5e_create_cq(cq, &cq_param); | |
2824 | if (err) | |
2825 | goto err_free_cq; | |
2826 | ||
2827 | err = mlx5e_alloc_drop_rq(mdev, drop_rq, &rq_param); | |
2828 | if (err) | |
2829 | goto err_destroy_cq; | |
2830 | ||
2831 | err = mlx5e_create_rq(drop_rq, &rq_param); | |
2832 | if (err) | |
2833 | goto err_free_rq; | |
2834 | ||
2835 | return 0; | |
2836 | ||
2837 | err_free_rq: | |
2838 | mlx5e_free_rq(drop_rq); | |
2839 | ||
2840 | err_destroy_cq: | |
2841 | mlx5e_destroy_cq(cq); | |
2842 | ||
2843 | err_free_cq: | |
2844 | mlx5e_free_cq(cq); | |
2845 | ||
2846 | return err; | |
2847 | } | |
2848 | ||
2849 | static void mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq) | |
2850 | { | |
2851 | mlx5e_destroy_rq(drop_rq); | |
2852 | mlx5e_free_rq(drop_rq); | |
2853 | mlx5e_destroy_cq(&drop_rq->cq); | |
2854 | mlx5e_free_cq(&drop_rq->cq); | |
2855 | } | |
2856 | ||
2857 | int mlx5e_create_tis(struct mlx5_core_dev *mdev, int tc, | |
2858 | u32 underlay_qpn, u32 *tisn) | |
2859 | { | |
2860 | u32 in[MLX5_ST_SZ_DW(create_tis_in)] = {0}; | |
2861 | void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx); | |
2862 | ||
2863 | MLX5_SET(tisc, tisc, prio, tc << 1); | |
2864 | MLX5_SET(tisc, tisc, underlay_qpn, underlay_qpn); | |
2865 | MLX5_SET(tisc, tisc, transport_domain, mdev->mlx5e_res.td.tdn); | |
2866 | ||
2867 | if (mlx5_lag_is_lacp_owner(mdev)) | |
2868 | MLX5_SET(tisc, tisc, strict_lag_tx_port_affinity, 1); | |
2869 | ||
2870 | return mlx5_core_create_tis(mdev, in, sizeof(in), tisn); | |
2871 | } | |
2872 | ||
2873 | void mlx5e_destroy_tis(struct mlx5_core_dev *mdev, u32 tisn) | |
2874 | { | |
2875 | mlx5_core_destroy_tis(mdev, tisn); | |
2876 | } | |
2877 | ||
2878 | int mlx5e_create_tises(struct mlx5e_priv *priv) | |
2879 | { | |
2880 | int err; | |
2881 | int tc; | |
2882 | ||
2883 | for (tc = 0; tc < priv->profile->max_tc; tc++) { | |
2884 | err = mlx5e_create_tis(priv->mdev, tc, 0, &priv->tisn[tc]); | |
2885 | if (err) | |
2886 | goto err_close_tises; | |
2887 | } | |
2888 | ||
2889 | return 0; | |
2890 | ||
2891 | err_close_tises: | |
2892 | for (tc--; tc >= 0; tc--) | |
2893 | mlx5e_destroy_tis(priv->mdev, priv->tisn[tc]); | |
2894 | ||
2895 | return err; | |
2896 | } | |
2897 | ||
2898 | void mlx5e_cleanup_nic_tx(struct mlx5e_priv *priv) | |
2899 | { | |
2900 | int tc; | |
2901 | ||
2902 | for (tc = 0; tc < priv->profile->max_tc; tc++) | |
2903 | mlx5e_destroy_tis(priv->mdev, priv->tisn[tc]); | |
2904 | } | |
2905 | ||
2906 | static void mlx5e_build_indir_tir_ctx(struct mlx5e_priv *priv, | |
2907 | enum mlx5e_traffic_types tt, | |
2908 | u32 *tirc) | |
2909 | { | |
2910 | MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn); | |
2911 | ||
2912 | mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc); | |
2913 | ||
2914 | MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT); | |
2915 | MLX5_SET(tirc, tirc, indirect_table, priv->indir_rqt.rqtn); | |
2916 | mlx5e_build_indir_tir_ctx_hash(&priv->channels.params, tt, tirc, false); | |
2917 | } | |
2918 | ||
2919 | static void mlx5e_build_direct_tir_ctx(struct mlx5e_priv *priv, u32 rqtn, u32 *tirc) | |
2920 | { | |
2921 | MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn); | |
2922 | ||
2923 | mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc); | |
2924 | ||
2925 | MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT); | |
2926 | MLX5_SET(tirc, tirc, indirect_table, rqtn); | |
2927 | MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_RX_HASH_FN_INVERTED_XOR8); | |
2928 | } | |
2929 | ||
2930 | int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv) | |
2931 | { | |
2932 | struct mlx5e_tir *tir; | |
2933 | void *tirc; | |
2934 | int inlen; | |
2935 | int i = 0; | |
2936 | int err; | |
2937 | u32 *in; | |
2938 | int tt; | |
2939 | ||
2940 | inlen = MLX5_ST_SZ_BYTES(create_tir_in); | |
2941 | in = kvzalloc(inlen, GFP_KERNEL); | |
2942 | if (!in) | |
2943 | return -ENOMEM; | |
2944 | ||
2945 | for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) { | |
2946 | memset(in, 0, inlen); | |
2947 | tir = &priv->indir_tir[tt]; | |
2948 | tirc = MLX5_ADDR_OF(create_tir_in, in, ctx); | |
2949 | mlx5e_build_indir_tir_ctx(priv, tt, tirc); | |
2950 | err = mlx5e_create_tir(priv->mdev, tir, in, inlen); | |
2951 | if (err) { | |
2952 | mlx5_core_warn(priv->mdev, "create indirect tirs failed, %d\n", err); | |
2953 | goto err_destroy_inner_tirs; | |
2954 | } | |
2955 | } | |
2956 | ||
2957 | if (!mlx5e_tunnel_inner_ft_supported(priv->mdev)) | |
2958 | goto out; | |
2959 | ||
2960 | for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++) { | |
2961 | memset(in, 0, inlen); | |
2962 | tir = &priv->inner_indir_tir[i]; | |
2963 | tirc = MLX5_ADDR_OF(create_tir_in, in, ctx); | |
2964 | mlx5e_build_inner_indir_tir_ctx(priv, i, tirc); | |
2965 | err = mlx5e_create_tir(priv->mdev, tir, in, inlen); | |
2966 | if (err) { | |
2967 | mlx5_core_warn(priv->mdev, "create inner indirect tirs failed, %d\n", err); | |
2968 | goto err_destroy_inner_tirs; | |
2969 | } | |
2970 | } | |
2971 | ||
2972 | out: | |
2973 | kvfree(in); | |
2974 | ||
2975 | return 0; | |
2976 | ||
2977 | err_destroy_inner_tirs: | |
2978 | for (i--; i >= 0; i--) | |
2979 | mlx5e_destroy_tir(priv->mdev, &priv->inner_indir_tir[i]); | |
2980 | ||
2981 | for (tt--; tt >= 0; tt--) | |
2982 | mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[tt]); | |
2983 | ||
2984 | kvfree(in); | |
2985 | ||
2986 | return err; | |
2987 | } | |
2988 | ||
2989 | int mlx5e_create_direct_tirs(struct mlx5e_priv *priv) | |
2990 | { | |
2991 | int nch = priv->profile->max_nch(priv->mdev); | |
2992 | struct mlx5e_tir *tir; | |
2993 | void *tirc; | |
2994 | int inlen; | |
2995 | int err; | |
2996 | u32 *in; | |
2997 | int ix; | |
2998 | ||
2999 | inlen = MLX5_ST_SZ_BYTES(create_tir_in); | |
3000 | in = kvzalloc(inlen, GFP_KERNEL); | |
3001 | if (!in) | |
3002 | return -ENOMEM; | |
3003 | ||
3004 | for (ix = 0; ix < nch; ix++) { | |
3005 | memset(in, 0, inlen); | |
3006 | tir = &priv->direct_tir[ix]; | |
3007 | tirc = MLX5_ADDR_OF(create_tir_in, in, ctx); | |
3008 | mlx5e_build_direct_tir_ctx(priv, priv->direct_tir[ix].rqt.rqtn, tirc); | |
3009 | err = mlx5e_create_tir(priv->mdev, tir, in, inlen); | |
3010 | if (err) | |
3011 | goto err_destroy_ch_tirs; | |
3012 | } | |
3013 | ||
3014 | kvfree(in); | |
3015 | ||
3016 | return 0; | |
3017 | ||
3018 | err_destroy_ch_tirs: | |
3019 | mlx5_core_warn(priv->mdev, "create direct tirs failed, %d\n", err); | |
3020 | for (ix--; ix >= 0; ix--) | |
3021 | mlx5e_destroy_tir(priv->mdev, &priv->direct_tir[ix]); | |
3022 | ||
3023 | kvfree(in); | |
3024 | ||
3025 | return err; | |
3026 | } | |
3027 | ||
3028 | void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv) | |
3029 | { | |
3030 | int i; | |
3031 | ||
3032 | for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++) | |
3033 | mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[i]); | |
3034 | ||
3035 | if (!mlx5e_tunnel_inner_ft_supported(priv->mdev)) | |
3036 | return; | |
3037 | ||
3038 | for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++) | |
3039 | mlx5e_destroy_tir(priv->mdev, &priv->inner_indir_tir[i]); | |
3040 | } | |
3041 | ||
3042 | void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv) | |
3043 | { | |
3044 | int nch = priv->profile->max_nch(priv->mdev); | |
3045 | int i; | |
3046 | ||
3047 | for (i = 0; i < nch; i++) | |
3048 | mlx5e_destroy_tir(priv->mdev, &priv->direct_tir[i]); | |
3049 | } | |
3050 | ||
3051 | static int mlx5e_modify_channels_scatter_fcs(struct mlx5e_channels *chs, bool enable) | |
3052 | { | |
3053 | int err = 0; | |
3054 | int i; | |
3055 | ||
3056 | for (i = 0; i < chs->num; i++) { | |
3057 | err = mlx5e_modify_rq_scatter_fcs(&chs->c[i]->rq, enable); | |
3058 | if (err) | |
3059 | return err; | |
3060 | } | |
3061 | ||
3062 | return 0; | |
3063 | } | |
3064 | ||
3065 | static int mlx5e_modify_channels_vsd(struct mlx5e_channels *chs, bool vsd) | |
3066 | { | |
3067 | int err = 0; | |
3068 | int i; | |
3069 | ||
3070 | for (i = 0; i < chs->num; i++) { | |
3071 | err = mlx5e_modify_rq_vsd(&chs->c[i]->rq, vsd); | |
3072 | if (err) | |
3073 | return err; | |
3074 | } | |
3075 | ||
3076 | return 0; | |
3077 | } | |
3078 | ||
3079 | static int mlx5e_setup_tc_mqprio(struct net_device *netdev, | |
3080 | struct tc_mqprio_qopt *mqprio) | |
3081 | { | |
3082 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3083 | struct mlx5e_channels new_channels = {}; | |
3084 | u8 tc = mqprio->num_tc; | |
3085 | int err = 0; | |
3086 | ||
3087 | mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS; | |
3088 | ||
3089 | if (tc && tc != MLX5E_MAX_NUM_TC) | |
3090 | return -EINVAL; | |
3091 | ||
3092 | mutex_lock(&priv->state_lock); | |
3093 | ||
3094 | new_channels.params = priv->channels.params; | |
3095 | new_channels.params.num_tc = tc ? tc : 1; | |
3096 | ||
3097 | if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) { | |
3098 | priv->channels.params = new_channels.params; | |
3099 | goto out; | |
3100 | } | |
3101 | ||
3102 | err = mlx5e_open_channels(priv, &new_channels); | |
3103 | if (err) | |
3104 | goto out; | |
3105 | ||
3106 | mlx5e_switch_priv_channels(priv, &new_channels, NULL); | |
3107 | out: | |
3108 | mutex_unlock(&priv->state_lock); | |
3109 | return err; | |
3110 | } | |
3111 | ||
3112 | #ifdef CONFIG_MLX5_ESWITCH | |
3113 | static int mlx5e_setup_tc_cls_flower(struct mlx5e_priv *priv, | |
3114 | struct tc_cls_flower_offload *cls_flower) | |
3115 | { | |
3116 | if (cls_flower->common.chain_index) | |
3117 | return -EOPNOTSUPP; | |
3118 | ||
3119 | switch (cls_flower->command) { | |
3120 | case TC_CLSFLOWER_REPLACE: | |
3121 | return mlx5e_configure_flower(priv, cls_flower); | |
3122 | case TC_CLSFLOWER_DESTROY: | |
3123 | return mlx5e_delete_flower(priv, cls_flower); | |
3124 | case TC_CLSFLOWER_STATS: | |
3125 | return mlx5e_stats_flower(priv, cls_flower); | |
3126 | default: | |
3127 | return -EOPNOTSUPP; | |
3128 | } | |
3129 | } | |
3130 | ||
3131 | int mlx5e_setup_tc_block_cb(enum tc_setup_type type, void *type_data, | |
3132 | void *cb_priv) | |
3133 | { | |
3134 | struct mlx5e_priv *priv = cb_priv; | |
3135 | ||
3136 | if (!tc_can_offload(priv->netdev)) | |
3137 | return -EOPNOTSUPP; | |
3138 | ||
3139 | switch (type) { | |
3140 | case TC_SETUP_CLSFLOWER: | |
3141 | return mlx5e_setup_tc_cls_flower(priv, type_data); | |
3142 | default: | |
3143 | return -EOPNOTSUPP; | |
3144 | } | |
3145 | } | |
3146 | ||
3147 | static int mlx5e_setup_tc_block(struct net_device *dev, | |
3148 | struct tc_block_offload *f) | |
3149 | { | |
3150 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3151 | ||
3152 | if (f->binder_type != TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS) | |
3153 | return -EOPNOTSUPP; | |
3154 | ||
3155 | switch (f->command) { | |
3156 | case TC_BLOCK_BIND: | |
3157 | return tcf_block_cb_register(f->block, mlx5e_setup_tc_block_cb, | |
3158 | priv, priv); | |
3159 | case TC_BLOCK_UNBIND: | |
3160 | tcf_block_cb_unregister(f->block, mlx5e_setup_tc_block_cb, | |
3161 | priv); | |
3162 | return 0; | |
3163 | default: | |
3164 | return -EOPNOTSUPP; | |
3165 | } | |
3166 | } | |
3167 | #endif | |
3168 | ||
3169 | int mlx5e_setup_tc(struct net_device *dev, enum tc_setup_type type, | |
3170 | void *type_data) | |
3171 | { | |
3172 | switch (type) { | |
3173 | #ifdef CONFIG_MLX5_ESWITCH | |
3174 | case TC_SETUP_BLOCK: | |
3175 | return mlx5e_setup_tc_block(dev, type_data); | |
3176 | #endif | |
3177 | case TC_SETUP_QDISC_MQPRIO: | |
3178 | return mlx5e_setup_tc_mqprio(dev, type_data); | |
3179 | default: | |
3180 | return -EOPNOTSUPP; | |
3181 | } | |
3182 | } | |
3183 | ||
3184 | static void | |
3185 | mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats) | |
3186 | { | |
3187 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3188 | struct mlx5e_sw_stats *sstats = &priv->stats.sw; | |
3189 | struct mlx5e_vport_stats *vstats = &priv->stats.vport; | |
3190 | struct mlx5e_pport_stats *pstats = &priv->stats.pport; | |
3191 | ||
3192 | if (mlx5e_is_uplink_rep(priv)) { | |
3193 | stats->rx_packets = PPORT_802_3_GET(pstats, a_frames_received_ok); | |
3194 | stats->rx_bytes = PPORT_802_3_GET(pstats, a_octets_received_ok); | |
3195 | stats->tx_packets = PPORT_802_3_GET(pstats, a_frames_transmitted_ok); | |
3196 | stats->tx_bytes = PPORT_802_3_GET(pstats, a_octets_transmitted_ok); | |
3197 | } else { | |
3198 | stats->rx_packets = sstats->rx_packets; | |
3199 | stats->rx_bytes = sstats->rx_bytes; | |
3200 | stats->tx_packets = sstats->tx_packets; | |
3201 | stats->tx_bytes = sstats->tx_bytes; | |
3202 | stats->tx_dropped = sstats->tx_queue_dropped; | |
3203 | } | |
3204 | ||
3205 | stats->rx_dropped = priv->stats.qcnt.rx_out_of_buffer; | |
3206 | ||
3207 | stats->rx_length_errors = | |
3208 | PPORT_802_3_GET(pstats, a_in_range_length_errors) + | |
3209 | PPORT_802_3_GET(pstats, a_out_of_range_length_field) + | |
3210 | PPORT_802_3_GET(pstats, a_frame_too_long_errors); | |
3211 | stats->rx_crc_errors = | |
3212 | PPORT_802_3_GET(pstats, a_frame_check_sequence_errors); | |
3213 | stats->rx_frame_errors = PPORT_802_3_GET(pstats, a_alignment_errors); | |
3214 | stats->tx_aborted_errors = PPORT_2863_GET(pstats, if_out_discards); | |
3215 | stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors + | |
3216 | stats->rx_frame_errors; | |
3217 | stats->tx_errors = stats->tx_aborted_errors + stats->tx_carrier_errors; | |
3218 | ||
3219 | /* vport multicast also counts packets that are dropped due to steering | |
3220 | * or rx out of buffer | |
3221 | */ | |
3222 | stats->multicast = | |
3223 | VPORT_COUNTER_GET(vstats, received_eth_multicast.packets); | |
3224 | } | |
3225 | ||
3226 | static void mlx5e_set_rx_mode(struct net_device *dev) | |
3227 | { | |
3228 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3229 | ||
3230 | queue_work(priv->wq, &priv->set_rx_mode_work); | |
3231 | } | |
3232 | ||
3233 | static int mlx5e_set_mac(struct net_device *netdev, void *addr) | |
3234 | { | |
3235 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3236 | struct sockaddr *saddr = addr; | |
3237 | ||
3238 | if (!is_valid_ether_addr(saddr->sa_data)) | |
3239 | return -EADDRNOTAVAIL; | |
3240 | ||
3241 | netif_addr_lock_bh(netdev); | |
3242 | ether_addr_copy(netdev->dev_addr, saddr->sa_data); | |
3243 | netif_addr_unlock_bh(netdev); | |
3244 | ||
3245 | queue_work(priv->wq, &priv->set_rx_mode_work); | |
3246 | ||
3247 | return 0; | |
3248 | } | |
3249 | ||
3250 | #define MLX5E_SET_FEATURE(features, feature, enable) \ | |
3251 | do { \ | |
3252 | if (enable) \ | |
3253 | *features |= feature; \ | |
3254 | else \ | |
3255 | *features &= ~feature; \ | |
3256 | } while (0) | |
3257 | ||
3258 | typedef int (*mlx5e_feature_handler)(struct net_device *netdev, bool enable); | |
3259 | ||
3260 | static int set_feature_lro(struct net_device *netdev, bool enable) | |
3261 | { | |
3262 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3263 | struct mlx5e_channels new_channels = {}; | |
3264 | int err = 0; | |
3265 | bool reset; | |
3266 | ||
3267 | mutex_lock(&priv->state_lock); | |
3268 | ||
3269 | reset = (priv->channels.params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST); | |
3270 | reset = reset && test_bit(MLX5E_STATE_OPENED, &priv->state); | |
3271 | ||
3272 | new_channels.params = priv->channels.params; | |
3273 | new_channels.params.lro_en = enable; | |
3274 | ||
3275 | if (!reset) { | |
3276 | priv->channels.params = new_channels.params; | |
3277 | err = mlx5e_modify_tirs_lro(priv); | |
3278 | goto out; | |
3279 | } | |
3280 | ||
3281 | err = mlx5e_open_channels(priv, &new_channels); | |
3282 | if (err) | |
3283 | goto out; | |
3284 | ||
3285 | mlx5e_switch_priv_channels(priv, &new_channels, mlx5e_modify_tirs_lro); | |
3286 | out: | |
3287 | mutex_unlock(&priv->state_lock); | |
3288 | return err; | |
3289 | } | |
3290 | ||
3291 | static int set_feature_cvlan_filter(struct net_device *netdev, bool enable) | |
3292 | { | |
3293 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3294 | ||
3295 | if (enable) | |
3296 | mlx5e_enable_cvlan_filter(priv); | |
3297 | else | |
3298 | mlx5e_disable_cvlan_filter(priv); | |
3299 | ||
3300 | return 0; | |
3301 | } | |
3302 | ||
3303 | #ifdef CONFIG_MLX5_ESWITCH | |
3304 | static int set_feature_tc_num_filters(struct net_device *netdev, bool enable) | |
3305 | { | |
3306 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3307 | ||
3308 | if (!enable && mlx5e_tc_num_filters(priv)) { | |
3309 | netdev_err(netdev, | |
3310 | "Active offloaded tc filters, can't turn hw_tc_offload off\n"); | |
3311 | return -EINVAL; | |
3312 | } | |
3313 | ||
3314 | return 0; | |
3315 | } | |
3316 | #endif | |
3317 | ||
3318 | static int set_feature_rx_all(struct net_device *netdev, bool enable) | |
3319 | { | |
3320 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3321 | struct mlx5_core_dev *mdev = priv->mdev; | |
3322 | ||
3323 | return mlx5_set_port_fcs(mdev, !enable); | |
3324 | } | |
3325 | ||
3326 | static int set_feature_rx_fcs(struct net_device *netdev, bool enable) | |
3327 | { | |
3328 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3329 | int err; | |
3330 | ||
3331 | mutex_lock(&priv->state_lock); | |
3332 | ||
3333 | priv->channels.params.scatter_fcs_en = enable; | |
3334 | err = mlx5e_modify_channels_scatter_fcs(&priv->channels, enable); | |
3335 | if (err) | |
3336 | priv->channels.params.scatter_fcs_en = !enable; | |
3337 | ||
3338 | mutex_unlock(&priv->state_lock); | |
3339 | ||
3340 | return err; | |
3341 | } | |
3342 | ||
3343 | static int set_feature_rx_vlan(struct net_device *netdev, bool enable) | |
3344 | { | |
3345 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3346 | int err = 0; | |
3347 | ||
3348 | mutex_lock(&priv->state_lock); | |
3349 | ||
3350 | priv->channels.params.vlan_strip_disable = !enable; | |
3351 | if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) | |
3352 | goto unlock; | |
3353 | ||
3354 | err = mlx5e_modify_channels_vsd(&priv->channels, !enable); | |
3355 | if (err) | |
3356 | priv->channels.params.vlan_strip_disable = enable; | |
3357 | ||
3358 | unlock: | |
3359 | mutex_unlock(&priv->state_lock); | |
3360 | ||
3361 | return err; | |
3362 | } | |
3363 | ||
3364 | #ifdef CONFIG_RFS_ACCEL | |
3365 | static int set_feature_arfs(struct net_device *netdev, bool enable) | |
3366 | { | |
3367 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3368 | int err; | |
3369 | ||
3370 | if (enable) | |
3371 | err = mlx5e_arfs_enable(priv); | |
3372 | else | |
3373 | err = mlx5e_arfs_disable(priv); | |
3374 | ||
3375 | return err; | |
3376 | } | |
3377 | #endif | |
3378 | ||
3379 | static int mlx5e_handle_feature(struct net_device *netdev, | |
3380 | netdev_features_t *features, | |
3381 | netdev_features_t wanted_features, | |
3382 | netdev_features_t feature, | |
3383 | mlx5e_feature_handler feature_handler) | |
3384 | { | |
3385 | netdev_features_t changes = wanted_features ^ netdev->features; | |
3386 | bool enable = !!(wanted_features & feature); | |
3387 | int err; | |
3388 | ||
3389 | if (!(changes & feature)) | |
3390 | return 0; | |
3391 | ||
3392 | err = feature_handler(netdev, enable); | |
3393 | if (err) { | |
3394 | netdev_err(netdev, "%s feature %pNF failed, err %d\n", | |
3395 | enable ? "Enable" : "Disable", &feature, err); | |
3396 | return err; | |
3397 | } | |
3398 | ||
3399 | MLX5E_SET_FEATURE(features, feature, enable); | |
3400 | return 0; | |
3401 | } | |
3402 | ||
3403 | static int mlx5e_set_features(struct net_device *netdev, | |
3404 | netdev_features_t features) | |
3405 | { | |
3406 | netdev_features_t oper_features = netdev->features; | |
3407 | int err; | |
3408 | ||
3409 | err = mlx5e_handle_feature(netdev, &oper_features, features, | |
3410 | NETIF_F_LRO, set_feature_lro); | |
3411 | err |= mlx5e_handle_feature(netdev, &oper_features, features, | |
3412 | NETIF_F_HW_VLAN_CTAG_FILTER, | |
3413 | set_feature_cvlan_filter); | |
3414 | #ifdef CONFIG_MLX5_ESWITCH | |
3415 | err |= mlx5e_handle_feature(netdev, &oper_features, features, | |
3416 | NETIF_F_HW_TC, set_feature_tc_num_filters); | |
3417 | #endif | |
3418 | err |= mlx5e_handle_feature(netdev, &oper_features, features, | |
3419 | NETIF_F_RXALL, set_feature_rx_all); | |
3420 | err |= mlx5e_handle_feature(netdev, &oper_features, features, | |
3421 | NETIF_F_RXFCS, set_feature_rx_fcs); | |
3422 | err |= mlx5e_handle_feature(netdev, &oper_features, features, | |
3423 | NETIF_F_HW_VLAN_CTAG_RX, set_feature_rx_vlan); | |
3424 | #ifdef CONFIG_RFS_ACCEL | |
3425 | err |= mlx5e_handle_feature(netdev, &oper_features, features, | |
3426 | NETIF_F_NTUPLE, set_feature_arfs); | |
3427 | #endif | |
3428 | ||
3429 | if (err) { | |
3430 | netdev->features = oper_features; | |
3431 | return -EINVAL; | |
3432 | } | |
3433 | ||
3434 | return 0; | |
3435 | } | |
3436 | ||
3437 | static netdev_features_t mlx5e_fix_features(struct net_device *netdev, | |
3438 | netdev_features_t features) | |
3439 | { | |
3440 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3441 | ||
3442 | mutex_lock(&priv->state_lock); | |
3443 | if (!bitmap_empty(priv->fs.vlan.active_svlans, VLAN_N_VID)) { | |
3444 | /* HW strips the outer C-tag header, this is a problem | |
3445 | * for S-tag traffic. | |
3446 | */ | |
3447 | features &= ~NETIF_F_HW_VLAN_CTAG_RX; | |
3448 | if (!priv->channels.params.vlan_strip_disable) | |
3449 | netdev_warn(netdev, "Dropping C-tag vlan stripping offload due to S-tag vlan\n"); | |
3450 | } | |
3451 | mutex_unlock(&priv->state_lock); | |
3452 | ||
3453 | return features; | |
3454 | } | |
3455 | ||
3456 | static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu) | |
3457 | { | |
3458 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3459 | struct mlx5e_channels new_channels = {}; | |
3460 | int curr_mtu; | |
3461 | int err = 0; | |
3462 | bool reset; | |
3463 | ||
3464 | mutex_lock(&priv->state_lock); | |
3465 | ||
3466 | reset = !priv->channels.params.lro_en && | |
3467 | (priv->channels.params.rq_wq_type != | |
3468 | MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ); | |
3469 | ||
3470 | reset = reset && test_bit(MLX5E_STATE_OPENED, &priv->state); | |
3471 | ||
3472 | curr_mtu = netdev->mtu; | |
3473 | netdev->mtu = new_mtu; | |
3474 | ||
3475 | if (!reset) { | |
3476 | mlx5e_set_dev_port_mtu(priv); | |
3477 | goto out; | |
3478 | } | |
3479 | ||
3480 | new_channels.params = priv->channels.params; | |
3481 | err = mlx5e_open_channels(priv, &new_channels); | |
3482 | if (err) { | |
3483 | netdev->mtu = curr_mtu; | |
3484 | goto out; | |
3485 | } | |
3486 | ||
3487 | mlx5e_switch_priv_channels(priv, &new_channels, mlx5e_set_dev_port_mtu); | |
3488 | ||
3489 | out: | |
3490 | mutex_unlock(&priv->state_lock); | |
3491 | return err; | |
3492 | } | |
3493 | ||
3494 | int mlx5e_hwstamp_set(struct mlx5e_priv *priv, struct ifreq *ifr) | |
3495 | { | |
3496 | struct hwtstamp_config config; | |
3497 | int err; | |
3498 | ||
3499 | if (!MLX5_CAP_GEN(priv->mdev, device_frequency_khz)) | |
3500 | return -EOPNOTSUPP; | |
3501 | ||
3502 | if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) | |
3503 | return -EFAULT; | |
3504 | ||
3505 | /* TX HW timestamp */ | |
3506 | switch (config.tx_type) { | |
3507 | case HWTSTAMP_TX_OFF: | |
3508 | case HWTSTAMP_TX_ON: | |
3509 | break; | |
3510 | default: | |
3511 | return -ERANGE; | |
3512 | } | |
3513 | ||
3514 | mutex_lock(&priv->state_lock); | |
3515 | /* RX HW timestamp */ | |
3516 | switch (config.rx_filter) { | |
3517 | case HWTSTAMP_FILTER_NONE: | |
3518 | /* Reset CQE compression to Admin default */ | |
3519 | mlx5e_modify_rx_cqe_compression_locked(priv, priv->channels.params.rx_cqe_compress_def); | |
3520 | break; | |
3521 | case HWTSTAMP_FILTER_ALL: | |
3522 | case HWTSTAMP_FILTER_SOME: | |
3523 | case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: | |
3524 | case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: | |
3525 | case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: | |
3526 | case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: | |
3527 | case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: | |
3528 | case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: | |
3529 | case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: | |
3530 | case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: | |
3531 | case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: | |
3532 | case HWTSTAMP_FILTER_PTP_V2_EVENT: | |
3533 | case HWTSTAMP_FILTER_PTP_V2_SYNC: | |
3534 | case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: | |
3535 | case HWTSTAMP_FILTER_NTP_ALL: | |
3536 | /* Disable CQE compression */ | |
3537 | netdev_warn(priv->netdev, "Disabling cqe compression"); | |
3538 | err = mlx5e_modify_rx_cqe_compression_locked(priv, false); | |
3539 | if (err) { | |
3540 | netdev_err(priv->netdev, "Failed disabling cqe compression err=%d\n", err); | |
3541 | mutex_unlock(&priv->state_lock); | |
3542 | return err; | |
3543 | } | |
3544 | config.rx_filter = HWTSTAMP_FILTER_ALL; | |
3545 | break; | |
3546 | default: | |
3547 | mutex_unlock(&priv->state_lock); | |
3548 | return -ERANGE; | |
3549 | } | |
3550 | ||
3551 | memcpy(&priv->tstamp, &config, sizeof(config)); | |
3552 | mutex_unlock(&priv->state_lock); | |
3553 | ||
3554 | return copy_to_user(ifr->ifr_data, &config, | |
3555 | sizeof(config)) ? -EFAULT : 0; | |
3556 | } | |
3557 | ||
3558 | int mlx5e_hwstamp_get(struct mlx5e_priv *priv, struct ifreq *ifr) | |
3559 | { | |
3560 | struct hwtstamp_config *cfg = &priv->tstamp; | |
3561 | ||
3562 | if (!MLX5_CAP_GEN(priv->mdev, device_frequency_khz)) | |
3563 | return -EOPNOTSUPP; | |
3564 | ||
3565 | return copy_to_user(ifr->ifr_data, cfg, sizeof(*cfg)) ? -EFAULT : 0; | |
3566 | } | |
3567 | ||
3568 | static int mlx5e_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
3569 | { | |
3570 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3571 | ||
3572 | switch (cmd) { | |
3573 | case SIOCSHWTSTAMP: | |
3574 | return mlx5e_hwstamp_set(priv, ifr); | |
3575 | case SIOCGHWTSTAMP: | |
3576 | return mlx5e_hwstamp_get(priv, ifr); | |
3577 | default: | |
3578 | return -EOPNOTSUPP; | |
3579 | } | |
3580 | } | |
3581 | ||
3582 | #ifdef CONFIG_MLX5_ESWITCH | |
3583 | static int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac) | |
3584 | { | |
3585 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3586 | struct mlx5_core_dev *mdev = priv->mdev; | |
3587 | ||
3588 | return mlx5_eswitch_set_vport_mac(mdev->priv.eswitch, vf + 1, mac); | |
3589 | } | |
3590 | ||
3591 | static int mlx5e_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos, | |
3592 | __be16 vlan_proto) | |
3593 | { | |
3594 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3595 | struct mlx5_core_dev *mdev = priv->mdev; | |
3596 | ||
3597 | if (vlan_proto != htons(ETH_P_8021Q)) | |
3598 | return -EPROTONOSUPPORT; | |
3599 | ||
3600 | return mlx5_eswitch_set_vport_vlan(mdev->priv.eswitch, vf + 1, | |
3601 | vlan, qos); | |
3602 | } | |
3603 | ||
3604 | static int mlx5e_set_vf_spoofchk(struct net_device *dev, int vf, bool setting) | |
3605 | { | |
3606 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3607 | struct mlx5_core_dev *mdev = priv->mdev; | |
3608 | ||
3609 | return mlx5_eswitch_set_vport_spoofchk(mdev->priv.eswitch, vf + 1, setting); | |
3610 | } | |
3611 | ||
3612 | static int mlx5e_set_vf_trust(struct net_device *dev, int vf, bool setting) | |
3613 | { | |
3614 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3615 | struct mlx5_core_dev *mdev = priv->mdev; | |
3616 | ||
3617 | return mlx5_eswitch_set_vport_trust(mdev->priv.eswitch, vf + 1, setting); | |
3618 | } | |
3619 | ||
3620 | static int mlx5e_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate, | |
3621 | int max_tx_rate) | |
3622 | { | |
3623 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3624 | struct mlx5_core_dev *mdev = priv->mdev; | |
3625 | ||
3626 | return mlx5_eswitch_set_vport_rate(mdev->priv.eswitch, vf + 1, | |
3627 | max_tx_rate, min_tx_rate); | |
3628 | } | |
3629 | ||
3630 | static int mlx5_vport_link2ifla(u8 esw_link) | |
3631 | { | |
3632 | switch (esw_link) { | |
3633 | case MLX5_ESW_VPORT_ADMIN_STATE_DOWN: | |
3634 | return IFLA_VF_LINK_STATE_DISABLE; | |
3635 | case MLX5_ESW_VPORT_ADMIN_STATE_UP: | |
3636 | return IFLA_VF_LINK_STATE_ENABLE; | |
3637 | } | |
3638 | return IFLA_VF_LINK_STATE_AUTO; | |
3639 | } | |
3640 | ||
3641 | static int mlx5_ifla_link2vport(u8 ifla_link) | |
3642 | { | |
3643 | switch (ifla_link) { | |
3644 | case IFLA_VF_LINK_STATE_DISABLE: | |
3645 | return MLX5_ESW_VPORT_ADMIN_STATE_DOWN; | |
3646 | case IFLA_VF_LINK_STATE_ENABLE: | |
3647 | return MLX5_ESW_VPORT_ADMIN_STATE_UP; | |
3648 | } | |
3649 | return MLX5_ESW_VPORT_ADMIN_STATE_AUTO; | |
3650 | } | |
3651 | ||
3652 | static int mlx5e_set_vf_link_state(struct net_device *dev, int vf, | |
3653 | int link_state) | |
3654 | { | |
3655 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3656 | struct mlx5_core_dev *mdev = priv->mdev; | |
3657 | ||
3658 | return mlx5_eswitch_set_vport_state(mdev->priv.eswitch, vf + 1, | |
3659 | mlx5_ifla_link2vport(link_state)); | |
3660 | } | |
3661 | ||
3662 | static int mlx5e_get_vf_config(struct net_device *dev, | |
3663 | int vf, struct ifla_vf_info *ivi) | |
3664 | { | |
3665 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3666 | struct mlx5_core_dev *mdev = priv->mdev; | |
3667 | int err; | |
3668 | ||
3669 | err = mlx5_eswitch_get_vport_config(mdev->priv.eswitch, vf + 1, ivi); | |
3670 | if (err) | |
3671 | return err; | |
3672 | ivi->linkstate = mlx5_vport_link2ifla(ivi->linkstate); | |
3673 | return 0; | |
3674 | } | |
3675 | ||
3676 | static int mlx5e_get_vf_stats(struct net_device *dev, | |
3677 | int vf, struct ifla_vf_stats *vf_stats) | |
3678 | { | |
3679 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3680 | struct mlx5_core_dev *mdev = priv->mdev; | |
3681 | ||
3682 | return mlx5_eswitch_get_vport_stats(mdev->priv.eswitch, vf + 1, | |
3683 | vf_stats); | |
3684 | } | |
3685 | #endif | |
3686 | ||
3687 | static void mlx5e_add_vxlan_port(struct net_device *netdev, | |
3688 | struct udp_tunnel_info *ti) | |
3689 | { | |
3690 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3691 | ||
3692 | if (ti->type != UDP_TUNNEL_TYPE_VXLAN) | |
3693 | return; | |
3694 | ||
3695 | if (!mlx5e_vxlan_allowed(priv->mdev)) | |
3696 | return; | |
3697 | ||
3698 | mlx5e_vxlan_queue_work(priv, ti->sa_family, be16_to_cpu(ti->port), 1); | |
3699 | } | |
3700 | ||
3701 | static void mlx5e_del_vxlan_port(struct net_device *netdev, | |
3702 | struct udp_tunnel_info *ti) | |
3703 | { | |
3704 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3705 | ||
3706 | if (ti->type != UDP_TUNNEL_TYPE_VXLAN) | |
3707 | return; | |
3708 | ||
3709 | if (!mlx5e_vxlan_allowed(priv->mdev)) | |
3710 | return; | |
3711 | ||
3712 | mlx5e_vxlan_queue_work(priv, ti->sa_family, be16_to_cpu(ti->port), 0); | |
3713 | } | |
3714 | ||
3715 | static netdev_features_t mlx5e_tunnel_features_check(struct mlx5e_priv *priv, | |
3716 | struct sk_buff *skb, | |
3717 | netdev_features_t features) | |
3718 | { | |
3719 | unsigned int offset = 0; | |
3720 | struct udphdr *udph; | |
3721 | u8 proto; | |
3722 | u16 port; | |
3723 | ||
3724 | switch (vlan_get_protocol(skb)) { | |
3725 | case htons(ETH_P_IP): | |
3726 | proto = ip_hdr(skb)->protocol; | |
3727 | break; | |
3728 | case htons(ETH_P_IPV6): | |
3729 | proto = ipv6_find_hdr(skb, &offset, -1, NULL, NULL); | |
3730 | break; | |
3731 | default: | |
3732 | goto out; | |
3733 | } | |
3734 | ||
3735 | switch (proto) { | |
3736 | case IPPROTO_GRE: | |
3737 | return features; | |
3738 | case IPPROTO_UDP: | |
3739 | udph = udp_hdr(skb); | |
3740 | port = be16_to_cpu(udph->dest); | |
3741 | ||
3742 | /* Verify if UDP port is being offloaded by HW */ | |
3743 | if (mlx5e_vxlan_lookup_port(priv, port)) | |
3744 | return features; | |
3745 | } | |
3746 | ||
3747 | out: | |
3748 | /* Disable CSUM and GSO if the udp dport is not offloaded by HW */ | |
3749 | return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); | |
3750 | } | |
3751 | ||
3752 | static netdev_features_t mlx5e_features_check(struct sk_buff *skb, | |
3753 | struct net_device *netdev, | |
3754 | netdev_features_t features) | |
3755 | { | |
3756 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3757 | ||
3758 | features = vlan_features_check(skb, features); | |
3759 | features = vxlan_features_check(skb, features); | |
3760 | ||
3761 | #ifdef CONFIG_MLX5_EN_IPSEC | |
3762 | if (mlx5e_ipsec_feature_check(skb, netdev, features)) | |
3763 | return features; | |
3764 | #endif | |
3765 | ||
3766 | /* Validate if the tunneled packet is being offloaded by HW */ | |
3767 | if (skb->encapsulation && | |
3768 | (features & NETIF_F_CSUM_MASK || features & NETIF_F_GSO_MASK)) | |
3769 | return mlx5e_tunnel_features_check(priv, skb, features); | |
3770 | ||
3771 | return features; | |
3772 | } | |
3773 | ||
3774 | static void mlx5e_tx_timeout(struct net_device *dev) | |
3775 | { | |
3776 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3777 | bool sched_work = false; | |
3778 | int i; | |
3779 | ||
3780 | netdev_err(dev, "TX timeout detected\n"); | |
3781 | ||
3782 | for (i = 0; i < priv->channels.num * priv->channels.params.num_tc; i++) { | |
3783 | struct mlx5e_txqsq *sq = priv->txq2sq[i]; | |
3784 | ||
3785 | if (!netif_xmit_stopped(netdev_get_tx_queue(dev, i))) | |
3786 | continue; | |
3787 | sched_work = true; | |
3788 | clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); | |
3789 | netdev_err(dev, "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x\n", | |
3790 | i, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc); | |
3791 | } | |
3792 | ||
3793 | if (sched_work && test_bit(MLX5E_STATE_OPENED, &priv->state)) | |
3794 | schedule_work(&priv->tx_timeout_work); | |
3795 | } | |
3796 | ||
3797 | static int mlx5e_xdp_set(struct net_device *netdev, struct bpf_prog *prog) | |
3798 | { | |
3799 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
3800 | struct bpf_prog *old_prog; | |
3801 | int err = 0; | |
3802 | bool reset, was_opened; | |
3803 | int i; | |
3804 | ||
3805 | mutex_lock(&priv->state_lock); | |
3806 | ||
3807 | if ((netdev->features & NETIF_F_LRO) && prog) { | |
3808 | netdev_warn(netdev, "can't set XDP while LRO is on, disable LRO first\n"); | |
3809 | err = -EINVAL; | |
3810 | goto unlock; | |
3811 | } | |
3812 | ||
3813 | if ((netdev->features & NETIF_F_HW_ESP) && prog) { | |
3814 | netdev_warn(netdev, "can't set XDP with IPSec offload\n"); | |
3815 | err = -EINVAL; | |
3816 | goto unlock; | |
3817 | } | |
3818 | ||
3819 | was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state); | |
3820 | /* no need for full reset when exchanging programs */ | |
3821 | reset = (!priv->channels.params.xdp_prog || !prog); | |
3822 | ||
3823 | if (was_opened && reset) | |
3824 | mlx5e_close_locked(netdev); | |
3825 | if (was_opened && !reset) { | |
3826 | /* num_channels is invariant here, so we can take the | |
3827 | * batched reference right upfront. | |
3828 | */ | |
3829 | prog = bpf_prog_add(prog, priv->channels.num); | |
3830 | if (IS_ERR(prog)) { | |
3831 | err = PTR_ERR(prog); | |
3832 | goto unlock; | |
3833 | } | |
3834 | } | |
3835 | ||
3836 | /* exchange programs, extra prog reference we got from caller | |
3837 | * as long as we don't fail from this point onwards. | |
3838 | */ | |
3839 | old_prog = xchg(&priv->channels.params.xdp_prog, prog); | |
3840 | if (old_prog) | |
3841 | bpf_prog_put(old_prog); | |
3842 | ||
3843 | if (reset) /* change RQ type according to priv->xdp_prog */ | |
3844 | mlx5e_set_rq_params(priv->mdev, &priv->channels.params); | |
3845 | ||
3846 | if (was_opened && reset) | |
3847 | mlx5e_open_locked(netdev); | |
3848 | ||
3849 | if (!test_bit(MLX5E_STATE_OPENED, &priv->state) || reset) | |
3850 | goto unlock; | |
3851 | ||
3852 | /* exchanging programs w/o reset, we update ref counts on behalf | |
3853 | * of the channels RQs here. | |
3854 | */ | |
3855 | for (i = 0; i < priv->channels.num; i++) { | |
3856 | struct mlx5e_channel *c = priv->channels.c[i]; | |
3857 | ||
3858 | clear_bit(MLX5E_RQ_STATE_ENABLED, &c->rq.state); | |
3859 | napi_synchronize(&c->napi); | |
3860 | /* prevent mlx5e_poll_rx_cq from accessing rq->xdp_prog */ | |
3861 | ||
3862 | old_prog = xchg(&c->rq.xdp_prog, prog); | |
3863 | ||
3864 | set_bit(MLX5E_RQ_STATE_ENABLED, &c->rq.state); | |
3865 | /* napi_schedule in case we have missed anything */ | |
3866 | napi_schedule(&c->napi); | |
3867 | ||
3868 | if (old_prog) | |
3869 | bpf_prog_put(old_prog); | |
3870 | } | |
3871 | ||
3872 | unlock: | |
3873 | mutex_unlock(&priv->state_lock); | |
3874 | return err; | |
3875 | } | |
3876 | ||
3877 | static u32 mlx5e_xdp_query(struct net_device *dev) | |
3878 | { | |
3879 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3880 | const struct bpf_prog *xdp_prog; | |
3881 | u32 prog_id = 0; | |
3882 | ||
3883 | mutex_lock(&priv->state_lock); | |
3884 | xdp_prog = priv->channels.params.xdp_prog; | |
3885 | if (xdp_prog) | |
3886 | prog_id = xdp_prog->aux->id; | |
3887 | mutex_unlock(&priv->state_lock); | |
3888 | ||
3889 | return prog_id; | |
3890 | } | |
3891 | ||
3892 | static int mlx5e_xdp(struct net_device *dev, struct netdev_bpf *xdp) | |
3893 | { | |
3894 | switch (xdp->command) { | |
3895 | case XDP_SETUP_PROG: | |
3896 | return mlx5e_xdp_set(dev, xdp->prog); | |
3897 | case XDP_QUERY_PROG: | |
3898 | xdp->prog_id = mlx5e_xdp_query(dev); | |
3899 | xdp->prog_attached = !!xdp->prog_id; | |
3900 | return 0; | |
3901 | default: | |
3902 | return -EINVAL; | |
3903 | } | |
3904 | } | |
3905 | ||
3906 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3907 | /* Fake "interrupt" called by netpoll (eg netconsole) to send skbs without | |
3908 | * reenabling interrupts. | |
3909 | */ | |
3910 | static void mlx5e_netpoll(struct net_device *dev) | |
3911 | { | |
3912 | struct mlx5e_priv *priv = netdev_priv(dev); | |
3913 | struct mlx5e_channels *chs = &priv->channels; | |
3914 | ||
3915 | int i; | |
3916 | ||
3917 | for (i = 0; i < chs->num; i++) | |
3918 | napi_schedule(&chs->c[i]->napi); | |
3919 | } | |
3920 | #endif | |
3921 | ||
3922 | static const struct net_device_ops mlx5e_netdev_ops = { | |
3923 | .ndo_open = mlx5e_open, | |
3924 | .ndo_stop = mlx5e_close, | |
3925 | .ndo_start_xmit = mlx5e_xmit, | |
3926 | .ndo_setup_tc = mlx5e_setup_tc, | |
3927 | .ndo_select_queue = mlx5e_select_queue, | |
3928 | .ndo_get_stats64 = mlx5e_get_stats, | |
3929 | .ndo_set_rx_mode = mlx5e_set_rx_mode, | |
3930 | .ndo_set_mac_address = mlx5e_set_mac, | |
3931 | .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid, | |
3932 | .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid, | |
3933 | .ndo_set_features = mlx5e_set_features, | |
3934 | .ndo_fix_features = mlx5e_fix_features, | |
3935 | .ndo_change_mtu = mlx5e_change_mtu, | |
3936 | .ndo_do_ioctl = mlx5e_ioctl, | |
3937 | .ndo_set_tx_maxrate = mlx5e_set_tx_maxrate, | |
3938 | .ndo_udp_tunnel_add = mlx5e_add_vxlan_port, | |
3939 | .ndo_udp_tunnel_del = mlx5e_del_vxlan_port, | |
3940 | .ndo_features_check = mlx5e_features_check, | |
3941 | #ifdef CONFIG_RFS_ACCEL | |
3942 | .ndo_rx_flow_steer = mlx5e_rx_flow_steer, | |
3943 | #endif | |
3944 | .ndo_tx_timeout = mlx5e_tx_timeout, | |
3945 | .ndo_bpf = mlx5e_xdp, | |
3946 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3947 | .ndo_poll_controller = mlx5e_netpoll, | |
3948 | #endif | |
3949 | #ifdef CONFIG_MLX5_ESWITCH | |
3950 | /* SRIOV E-Switch NDOs */ | |
3951 | .ndo_set_vf_mac = mlx5e_set_vf_mac, | |
3952 | .ndo_set_vf_vlan = mlx5e_set_vf_vlan, | |
3953 | .ndo_set_vf_spoofchk = mlx5e_set_vf_spoofchk, | |
3954 | .ndo_set_vf_trust = mlx5e_set_vf_trust, | |
3955 | .ndo_set_vf_rate = mlx5e_set_vf_rate, | |
3956 | .ndo_get_vf_config = mlx5e_get_vf_config, | |
3957 | .ndo_set_vf_link_state = mlx5e_set_vf_link_state, | |
3958 | .ndo_get_vf_stats = mlx5e_get_vf_stats, | |
3959 | .ndo_has_offload_stats = mlx5e_has_offload_stats, | |
3960 | .ndo_get_offload_stats = mlx5e_get_offload_stats, | |
3961 | #endif | |
3962 | }; | |
3963 | ||
3964 | static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev) | |
3965 | { | |
3966 | if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH) | |
3967 | return -EOPNOTSUPP; | |
3968 | if (!MLX5_CAP_GEN(mdev, eth_net_offloads) || | |
3969 | !MLX5_CAP_GEN(mdev, nic_flow_table) || | |
3970 | !MLX5_CAP_ETH(mdev, csum_cap) || | |
3971 | !MLX5_CAP_ETH(mdev, max_lso_cap) || | |
3972 | !MLX5_CAP_ETH(mdev, vlan_cap) || | |
3973 | !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) || | |
3974 | MLX5_CAP_FLOWTABLE(mdev, | |
3975 | flow_table_properties_nic_receive.max_ft_level) | |
3976 | < 3) { | |
3977 | mlx5_core_warn(mdev, | |
3978 | "Not creating net device, some required device capabilities are missing\n"); | |
3979 | return -EOPNOTSUPP; | |
3980 | } | |
3981 | if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable)) | |
3982 | mlx5_core_warn(mdev, "Self loop back prevention is not supported\n"); | |
3983 | if (!MLX5_CAP_GEN(mdev, cq_moderation)) | |
3984 | mlx5_core_warn(mdev, "CQ moderation is not supported\n"); | |
3985 | ||
3986 | return 0; | |
3987 | } | |
3988 | ||
3989 | u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev) | |
3990 | { | |
3991 | int bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2; | |
3992 | ||
3993 | return bf_buf_size - | |
3994 | sizeof(struct mlx5e_tx_wqe) + | |
3995 | 2 /*sizeof(mlx5e_tx_wqe.inline_hdr_start)*/; | |
3996 | } | |
3997 | ||
3998 | void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len, | |
3999 | int num_channels) | |
4000 | { | |
4001 | int i; | |
4002 | ||
4003 | for (i = 0; i < len; i++) | |
4004 | indirection_rqt[i] = i % num_channels; | |
4005 | } | |
4006 | ||
4007 | static int mlx5e_get_pci_bw(struct mlx5_core_dev *mdev, u32 *pci_bw) | |
4008 | { | |
4009 | enum pcie_link_width width; | |
4010 | enum pci_bus_speed speed; | |
4011 | int err = 0; | |
4012 | ||
4013 | err = pcie_get_minimum_link(mdev->pdev, &speed, &width); | |
4014 | if (err) | |
4015 | return err; | |
4016 | ||
4017 | if (speed == PCI_SPEED_UNKNOWN || width == PCIE_LNK_WIDTH_UNKNOWN) | |
4018 | return -EINVAL; | |
4019 | ||
4020 | switch (speed) { | |
4021 | case PCIE_SPEED_2_5GT: | |
4022 | *pci_bw = 2500 * width; | |
4023 | break; | |
4024 | case PCIE_SPEED_5_0GT: | |
4025 | *pci_bw = 5000 * width; | |
4026 | break; | |
4027 | case PCIE_SPEED_8_0GT: | |
4028 | *pci_bw = 8000 * width; | |
4029 | break; | |
4030 | default: | |
4031 | return -EINVAL; | |
4032 | } | |
4033 | ||
4034 | return 0; | |
4035 | } | |
4036 | ||
4037 | static bool cqe_compress_heuristic(u32 link_speed, u32 pci_bw) | |
4038 | { | |
4039 | return (link_speed && pci_bw && | |
4040 | (pci_bw < 40000) && (pci_bw < link_speed)); | |
4041 | } | |
4042 | ||
4043 | static bool hw_lro_heuristic(u32 link_speed, u32 pci_bw) | |
4044 | { | |
4045 | return !(link_speed && pci_bw && | |
4046 | (pci_bw <= 16000) && (pci_bw < link_speed)); | |
4047 | } | |
4048 | ||
4049 | void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode) | |
4050 | { | |
4051 | params->tx_cq_moderation.cq_period_mode = cq_period_mode; | |
4052 | ||
4053 | params->tx_cq_moderation.pkts = | |
4054 | MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS; | |
4055 | params->tx_cq_moderation.usec = | |
4056 | MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC; | |
4057 | ||
4058 | if (cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE) | |
4059 | params->tx_cq_moderation.usec = | |
4060 | MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC_FROM_CQE; | |
4061 | ||
4062 | MLX5E_SET_PFLAG(params, MLX5E_PFLAG_TX_CQE_BASED_MODER, | |
4063 | params->tx_cq_moderation.cq_period_mode == | |
4064 | MLX5_CQ_PERIOD_MODE_START_FROM_CQE); | |
4065 | } | |
4066 | ||
4067 | void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode) | |
4068 | { | |
4069 | params->rx_cq_moderation.cq_period_mode = cq_period_mode; | |
4070 | ||
4071 | params->rx_cq_moderation.pkts = | |
4072 | MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS; | |
4073 | params->rx_cq_moderation.usec = | |
4074 | MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC; | |
4075 | ||
4076 | if (cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE) | |
4077 | params->rx_cq_moderation.usec = | |
4078 | MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE; | |
4079 | ||
4080 | if (params->rx_am_enabled) | |
4081 | params->rx_cq_moderation = | |
4082 | mlx5e_am_get_def_profile(cq_period_mode); | |
4083 | ||
4084 | MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_BASED_MODER, | |
4085 | params->rx_cq_moderation.cq_period_mode == | |
4086 | MLX5_CQ_PERIOD_MODE_START_FROM_CQE); | |
4087 | } | |
4088 | ||
4089 | u32 mlx5e_choose_lro_timeout(struct mlx5_core_dev *mdev, u32 wanted_timeout) | |
4090 | { | |
4091 | int i; | |
4092 | ||
4093 | /* The supported periods are organized in ascending order */ | |
4094 | for (i = 0; i < MLX5E_LRO_TIMEOUT_ARR_SIZE - 1; i++) | |
4095 | if (MLX5_CAP_ETH(mdev, lro_timer_supported_periods[i]) >= wanted_timeout) | |
4096 | break; | |
4097 | ||
4098 | return MLX5_CAP_ETH(mdev, lro_timer_supported_periods[i]); | |
4099 | } | |
4100 | ||
4101 | void mlx5e_build_nic_params(struct mlx5_core_dev *mdev, | |
4102 | struct mlx5e_params *params, | |
4103 | u16 max_channels) | |
4104 | { | |
4105 | u8 rx_cq_period_mode; | |
4106 | u32 link_speed = 0; | |
4107 | u32 pci_bw = 0; | |
4108 | ||
4109 | params->num_channels = max_channels; | |
4110 | params->num_tc = 1; | |
4111 | ||
4112 | mlx5e_get_max_linkspeed(mdev, &link_speed); | |
4113 | mlx5e_get_pci_bw(mdev, &pci_bw); | |
4114 | mlx5_core_dbg(mdev, "Max link speed = %d, PCI BW = %d\n", | |
4115 | link_speed, pci_bw); | |
4116 | ||
4117 | /* SQ */ | |
4118 | params->log_sq_size = is_kdump_kernel() ? | |
4119 | MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE : | |
4120 | MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE; | |
4121 | ||
4122 | /* set CQE compression */ | |
4123 | params->rx_cqe_compress_def = false; | |
4124 | if (MLX5_CAP_GEN(mdev, cqe_compression) && | |
4125 | MLX5_CAP_GEN(mdev, vport_group_manager)) | |
4126 | params->rx_cqe_compress_def = cqe_compress_heuristic(link_speed, pci_bw); | |
4127 | ||
4128 | MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS, params->rx_cqe_compress_def); | |
4129 | MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_NO_CSUM_COMPLETE, false); | |
4130 | ||
4131 | /* RQ */ | |
4132 | mlx5e_set_rq_params(mdev, params); | |
4133 | ||
4134 | /* HW LRO */ | |
4135 | ||
4136 | /* TODO: && MLX5_CAP_ETH(mdev, lro_cap) */ | |
4137 | if (params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) | |
4138 | params->lro_en = hw_lro_heuristic(link_speed, pci_bw); | |
4139 | params->lro_timeout = mlx5e_choose_lro_timeout(mdev, MLX5E_DEFAULT_LRO_TIMEOUT); | |
4140 | ||
4141 | /* CQ moderation params */ | |
4142 | rx_cq_period_mode = MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ? | |
4143 | MLX5_CQ_PERIOD_MODE_START_FROM_CQE : | |
4144 | MLX5_CQ_PERIOD_MODE_START_FROM_EQE; | |
4145 | params->rx_am_enabled = MLX5_CAP_GEN(mdev, cq_moderation); | |
4146 | mlx5e_set_rx_cq_mode_params(params, rx_cq_period_mode); | |
4147 | mlx5e_set_tx_cq_mode_params(params, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); | |
4148 | ||
4149 | /* TX inline */ | |
4150 | params->tx_max_inline = mlx5e_get_max_inline_cap(mdev); | |
4151 | params->tx_min_inline_mode = mlx5e_params_calculate_tx_min_inline(mdev); | |
4152 | ||
4153 | /* RSS */ | |
4154 | params->rss_hfunc = ETH_RSS_HASH_XOR; | |
4155 | netdev_rss_key_fill(params->toeplitz_hash_key, sizeof(params->toeplitz_hash_key)); | |
4156 | mlx5e_build_default_indir_rqt(params->indirection_rqt, | |
4157 | MLX5E_INDIR_RQT_SIZE, max_channels); | |
4158 | } | |
4159 | ||
4160 | static void mlx5e_build_nic_netdev_priv(struct mlx5_core_dev *mdev, | |
4161 | struct net_device *netdev, | |
4162 | const struct mlx5e_profile *profile, | |
4163 | void *ppriv) | |
4164 | { | |
4165 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
4166 | ||
4167 | priv->mdev = mdev; | |
4168 | priv->netdev = netdev; | |
4169 | priv->profile = profile; | |
4170 | priv->ppriv = ppriv; | |
4171 | priv->msglevel = MLX5E_MSG_LEVEL; | |
4172 | priv->hard_mtu = MLX5E_ETH_HARD_MTU; | |
4173 | ||
4174 | mlx5e_build_nic_params(mdev, &priv->channels.params, profile->max_nch(mdev)); | |
4175 | ||
4176 | mutex_init(&priv->state_lock); | |
4177 | ||
4178 | INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work); | |
4179 | INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work); | |
4180 | INIT_WORK(&priv->tx_timeout_work, mlx5e_tx_timeout_work); | |
4181 | INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work); | |
4182 | ||
4183 | mlx5e_timestamp_init(priv); | |
4184 | } | |
4185 | ||
4186 | static void mlx5e_set_netdev_dev_addr(struct net_device *netdev) | |
4187 | { | |
4188 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
4189 | ||
4190 | mlx5_query_nic_vport_mac_address(priv->mdev, 0, netdev->dev_addr); | |
4191 | if (is_zero_ether_addr(netdev->dev_addr) && | |
4192 | !MLX5_CAP_GEN(priv->mdev, vport_group_manager)) { | |
4193 | eth_hw_addr_random(netdev); | |
4194 | mlx5_core_info(priv->mdev, "Assigned random MAC address %pM\n", netdev->dev_addr); | |
4195 | } | |
4196 | } | |
4197 | ||
4198 | #if IS_ENABLED(CONFIG_MLX5_ESWITCH) | |
4199 | static const struct switchdev_ops mlx5e_switchdev_ops = { | |
4200 | .switchdev_port_attr_get = mlx5e_attr_get, | |
4201 | }; | |
4202 | #endif | |
4203 | ||
4204 | static void mlx5e_build_nic_netdev(struct net_device *netdev) | |
4205 | { | |
4206 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
4207 | struct mlx5_core_dev *mdev = priv->mdev; | |
4208 | bool fcs_supported; | |
4209 | bool fcs_enabled; | |
4210 | ||
4211 | SET_NETDEV_DEV(netdev, &mdev->pdev->dev); | |
4212 | ||
4213 | netdev->netdev_ops = &mlx5e_netdev_ops; | |
4214 | ||
4215 | #ifdef CONFIG_MLX5_CORE_EN_DCB | |
4216 | if (MLX5_CAP_GEN(mdev, vport_group_manager) && MLX5_CAP_GEN(mdev, qos)) | |
4217 | netdev->dcbnl_ops = &mlx5e_dcbnl_ops; | |
4218 | #endif | |
4219 | ||
4220 | netdev->watchdog_timeo = 15 * HZ; | |
4221 | ||
4222 | netdev->ethtool_ops = &mlx5e_ethtool_ops; | |
4223 | ||
4224 | netdev->vlan_features |= NETIF_F_SG; | |
4225 | netdev->vlan_features |= NETIF_F_IP_CSUM; | |
4226 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; | |
4227 | netdev->vlan_features |= NETIF_F_GRO; | |
4228 | netdev->vlan_features |= NETIF_F_TSO; | |
4229 | netdev->vlan_features |= NETIF_F_TSO6; | |
4230 | netdev->vlan_features |= NETIF_F_RXCSUM; | |
4231 | netdev->vlan_features |= NETIF_F_RXHASH; | |
4232 | ||
4233 | if (!!MLX5_CAP_ETH(mdev, lro_cap)) | |
4234 | netdev->vlan_features |= NETIF_F_LRO; | |
4235 | ||
4236 | netdev->hw_features = netdev->vlan_features; | |
4237 | netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; | |
4238 | netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX; | |
4239 | netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; | |
4240 | netdev->hw_features |= NETIF_F_HW_VLAN_STAG_TX; | |
4241 | ||
4242 | if (mlx5e_vxlan_allowed(mdev) || MLX5_CAP_ETH(mdev, tunnel_stateless_gre)) { | |
4243 | netdev->hw_features |= NETIF_F_GSO_PARTIAL; | |
4244 | netdev->hw_enc_features |= NETIF_F_IP_CSUM; | |
4245 | netdev->hw_enc_features |= NETIF_F_IPV6_CSUM; | |
4246 | netdev->hw_enc_features |= NETIF_F_TSO; | |
4247 | netdev->hw_enc_features |= NETIF_F_TSO6; | |
4248 | netdev->hw_enc_features |= NETIF_F_GSO_PARTIAL; | |
4249 | } | |
4250 | ||
4251 | if (mlx5e_vxlan_allowed(mdev)) { | |
4252 | netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL | | |
4253 | NETIF_F_GSO_UDP_TUNNEL_CSUM; | |
4254 | netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL | | |
4255 | NETIF_F_GSO_UDP_TUNNEL_CSUM; | |
4256 | netdev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM; | |
4257 | } | |
4258 | ||
4259 | if (MLX5_CAP_ETH(mdev, tunnel_stateless_gre)) { | |
4260 | netdev->hw_features |= NETIF_F_GSO_GRE | | |
4261 | NETIF_F_GSO_GRE_CSUM; | |
4262 | netdev->hw_enc_features |= NETIF_F_GSO_GRE | | |
4263 | NETIF_F_GSO_GRE_CSUM; | |
4264 | netdev->gso_partial_features |= NETIF_F_GSO_GRE | | |
4265 | NETIF_F_GSO_GRE_CSUM; | |
4266 | } | |
4267 | ||
4268 | mlx5_query_port_fcs(mdev, &fcs_supported, &fcs_enabled); | |
4269 | ||
4270 | if (fcs_supported) | |
4271 | netdev->hw_features |= NETIF_F_RXALL; | |
4272 | ||
4273 | if (MLX5_CAP_ETH(mdev, scatter_fcs)) | |
4274 | netdev->hw_features |= NETIF_F_RXFCS; | |
4275 | ||
4276 | netdev->features = netdev->hw_features; | |
4277 | if (!priv->channels.params.lro_en) | |
4278 | netdev->features &= ~NETIF_F_LRO; | |
4279 | ||
4280 | if (fcs_enabled) | |
4281 | netdev->features &= ~NETIF_F_RXALL; | |
4282 | ||
4283 | if (!priv->channels.params.scatter_fcs_en) | |
4284 | netdev->features &= ~NETIF_F_RXFCS; | |
4285 | ||
4286 | #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f) | |
4287 | if (FT_CAP(flow_modify_en) && | |
4288 | FT_CAP(modify_root) && | |
4289 | FT_CAP(identified_miss_table_mode) && | |
4290 | FT_CAP(flow_table_modify)) { | |
4291 | netdev->hw_features |= NETIF_F_HW_TC; | |
4292 | #ifdef CONFIG_RFS_ACCEL | |
4293 | netdev->hw_features |= NETIF_F_NTUPLE; | |
4294 | #endif | |
4295 | } | |
4296 | ||
4297 | netdev->features |= NETIF_F_HIGHDMA; | |
4298 | netdev->features |= NETIF_F_HW_VLAN_STAG_FILTER; | |
4299 | ||
4300 | netdev->priv_flags |= IFF_UNICAST_FLT; | |
4301 | ||
4302 | mlx5e_set_netdev_dev_addr(netdev); | |
4303 | ||
4304 | #if IS_ENABLED(CONFIG_MLX5_ESWITCH) | |
4305 | if (MLX5_ESWITCH_MANAGER(mdev)) | |
4306 | netdev->switchdev_ops = &mlx5e_switchdev_ops; | |
4307 | #endif | |
4308 | ||
4309 | mlx5e_ipsec_build_netdev(priv); | |
4310 | } | |
4311 | ||
4312 | static void mlx5e_create_q_counter(struct mlx5e_priv *priv) | |
4313 | { | |
4314 | struct mlx5_core_dev *mdev = priv->mdev; | |
4315 | int err; | |
4316 | ||
4317 | err = mlx5_core_alloc_q_counter(mdev, &priv->q_counter); | |
4318 | if (err) { | |
4319 | mlx5_core_warn(mdev, "alloc queue counter failed, %d\n", err); | |
4320 | priv->q_counter = 0; | |
4321 | } | |
4322 | } | |
4323 | ||
4324 | static void mlx5e_destroy_q_counter(struct mlx5e_priv *priv) | |
4325 | { | |
4326 | if (!priv->q_counter) | |
4327 | return; | |
4328 | ||
4329 | mlx5_core_dealloc_q_counter(priv->mdev, priv->q_counter); | |
4330 | } | |
4331 | ||
4332 | static void mlx5e_nic_init(struct mlx5_core_dev *mdev, | |
4333 | struct net_device *netdev, | |
4334 | const struct mlx5e_profile *profile, | |
4335 | void *ppriv) | |
4336 | { | |
4337 | struct mlx5e_priv *priv = netdev_priv(netdev); | |
4338 | int err; | |
4339 | ||
4340 | mlx5e_build_nic_netdev_priv(mdev, netdev, profile, ppriv); | |
4341 | err = mlx5e_ipsec_init(priv); | |
4342 | if (err) | |
4343 | mlx5_core_err(mdev, "IPSec initialization failed, %d\n", err); | |
4344 | mlx5e_build_nic_netdev(netdev); | |
4345 | mlx5e_vxlan_init(priv); | |
4346 | } | |
4347 | ||
4348 | static void mlx5e_nic_cleanup(struct mlx5e_priv *priv) | |
4349 | { | |
4350 | mlx5e_ipsec_cleanup(priv); | |
4351 | mlx5e_vxlan_cleanup(priv); | |
4352 | ||
4353 | if (priv->channels.params.xdp_prog) | |
4354 | bpf_prog_put(priv->channels.params.xdp_prog); | |
4355 | } | |
4356 | ||
4357 | static int mlx5e_init_nic_rx(struct mlx5e_priv *priv) | |
4358 | { | |
4359 | struct mlx5_core_dev *mdev = priv->mdev; | |
4360 | int err; | |
4361 | ||
4362 | err = mlx5e_create_indirect_rqt(priv); | |
4363 | if (err) | |
4364 | return err; | |
4365 | ||
4366 | err = mlx5e_create_direct_rqts(priv); | |
4367 | if (err) | |
4368 | goto err_destroy_indirect_rqts; | |
4369 | ||
4370 | err = mlx5e_create_indirect_tirs(priv); | |
4371 | if (err) | |
4372 | goto err_destroy_direct_rqts; | |
4373 | ||
4374 | err = mlx5e_create_direct_tirs(priv); | |
4375 | if (err) | |
4376 | goto err_destroy_indirect_tirs; | |
4377 | ||
4378 | err = mlx5e_create_flow_steering(priv); | |
4379 | if (err) { | |
4380 | mlx5_core_warn(mdev, "create flow steering failed, %d\n", err); | |
4381 | goto err_destroy_direct_tirs; | |
4382 | } | |
4383 | ||
4384 | err = mlx5e_tc_init(priv); | |
4385 | if (err) | |
4386 | goto err_destroy_flow_steering; | |
4387 | ||
4388 | return 0; | |
4389 | ||
4390 | err_destroy_flow_steering: | |
4391 | mlx5e_destroy_flow_steering(priv); | |
4392 | err_destroy_direct_tirs: | |
4393 | mlx5e_destroy_direct_tirs(priv); | |
4394 | err_destroy_indirect_tirs: | |
4395 | mlx5e_destroy_indirect_tirs(priv); | |
4396 | err_destroy_direct_rqts: | |
4397 | mlx5e_destroy_direct_rqts(priv); | |
4398 | err_destroy_indirect_rqts: | |
4399 | mlx5e_destroy_rqt(priv, &priv->indir_rqt); | |
4400 | return err; | |
4401 | } | |
4402 | ||
4403 | static void mlx5e_cleanup_nic_rx(struct mlx5e_priv *priv) | |
4404 | { | |
4405 | mlx5e_tc_cleanup(priv); | |
4406 | mlx5e_destroy_flow_steering(priv); | |
4407 | mlx5e_destroy_direct_tirs(priv); | |
4408 | mlx5e_destroy_indirect_tirs(priv); | |
4409 | mlx5e_destroy_direct_rqts(priv); | |
4410 | mlx5e_destroy_rqt(priv, &priv->indir_rqt); | |
4411 | } | |
4412 | ||
4413 | static int mlx5e_init_nic_tx(struct mlx5e_priv *priv) | |
4414 | { | |
4415 | int err; | |
4416 | ||
4417 | err = mlx5e_create_tises(priv); | |
4418 | if (err) { | |
4419 | mlx5_core_warn(priv->mdev, "create tises failed, %d\n", err); | |
4420 | return err; | |
4421 | } | |
4422 | ||
4423 | #ifdef CONFIG_MLX5_CORE_EN_DCB | |
4424 | mlx5e_dcbnl_initialize(priv); | |
4425 | #endif | |
4426 | return 0; | |
4427 | } | |
4428 | ||
4429 | static void mlx5e_nic_enable(struct mlx5e_priv *priv) | |
4430 | { | |
4431 | struct net_device *netdev = priv->netdev; | |
4432 | struct mlx5_core_dev *mdev = priv->mdev; | |
4433 | u16 max_mtu; | |
4434 | ||
4435 | mlx5e_init_l2_addr(priv); | |
4436 | ||
4437 | /* Marking the link as currently not needed by the Driver */ | |
4438 | if (!netif_running(netdev)) | |
4439 | mlx5_set_port_admin_status(mdev, MLX5_PORT_DOWN); | |
4440 | ||
4441 | /* MTU range: 68 - hw-specific max */ | |
4442 | netdev->min_mtu = ETH_MIN_MTU; | |
4443 | mlx5_query_port_max_mtu(priv->mdev, &max_mtu, 1); | |
4444 | netdev->max_mtu = MLX5E_HW2SW_MTU(priv, max_mtu); | |
4445 | mlx5e_set_dev_port_mtu(priv); | |
4446 | ||
4447 | mlx5_lag_add(mdev, netdev); | |
4448 | ||
4449 | mlx5e_enable_async_events(priv); | |
4450 | ||
4451 | if (MLX5_ESWITCH_MANAGER(priv->mdev)) | |
4452 | mlx5e_register_vport_reps(priv); | |
4453 | ||
4454 | if (netdev->reg_state != NETREG_REGISTERED) | |
4455 | return; | |
4456 | #ifdef CONFIG_MLX5_CORE_EN_DCB | |
4457 | mlx5e_dcbnl_init_app(priv); | |
4458 | #endif | |
4459 | ||
4460 | queue_work(priv->wq, &priv->set_rx_mode_work); | |
4461 | ||
4462 | rtnl_lock(); | |
4463 | if (netif_running(netdev)) | |
4464 | mlx5e_open(netdev); | |
4465 | netif_device_attach(netdev); | |
4466 | rtnl_unlock(); | |
4467 | } | |
4468 | ||
4469 | static void mlx5e_nic_disable(struct mlx5e_priv *priv) | |
4470 | { | |
4471 | struct mlx5_core_dev *mdev = priv->mdev; | |
4472 | ||
4473 | #ifdef CONFIG_MLX5_CORE_EN_DCB | |
4474 | if (priv->netdev->reg_state == NETREG_REGISTERED) | |
4475 | mlx5e_dcbnl_delete_app(priv); | |
4476 | #endif | |
4477 | ||
4478 | rtnl_lock(); | |
4479 | if (netif_running(priv->netdev)) | |
4480 | mlx5e_close(priv->netdev); | |
4481 | netif_device_detach(priv->netdev); | |
4482 | rtnl_unlock(); | |
4483 | ||
4484 | queue_work(priv->wq, &priv->set_rx_mode_work); | |
4485 | ||
4486 | if (MLX5_ESWITCH_MANAGER(priv->mdev)) | |
4487 | mlx5e_unregister_vport_reps(priv); | |
4488 | ||
4489 | mlx5e_disable_async_events(priv); | |
4490 | mlx5_lag_remove(mdev); | |
4491 | } | |
4492 | ||
4493 | static const struct mlx5e_profile mlx5e_nic_profile = { | |
4494 | .init = mlx5e_nic_init, | |
4495 | .cleanup = mlx5e_nic_cleanup, | |
4496 | .init_rx = mlx5e_init_nic_rx, | |
4497 | .cleanup_rx = mlx5e_cleanup_nic_rx, | |
4498 | .init_tx = mlx5e_init_nic_tx, | |
4499 | .cleanup_tx = mlx5e_cleanup_nic_tx, | |
4500 | .enable = mlx5e_nic_enable, | |
4501 | .disable = mlx5e_nic_disable, | |
4502 | .update_stats = mlx5e_update_ndo_stats, | |
4503 | .max_nch = mlx5e_get_max_num_channels, | |
4504 | .update_carrier = mlx5e_update_carrier, | |
4505 | .rx_handlers.handle_rx_cqe = mlx5e_handle_rx_cqe, | |
4506 | .rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq, | |
4507 | .max_tc = MLX5E_MAX_NUM_TC, | |
4508 | }; | |
4509 | ||
4510 | /* mlx5e generic netdev management API (move to en_common.c) */ | |
4511 | ||
4512 | struct net_device *mlx5e_create_netdev(struct mlx5_core_dev *mdev, | |
4513 | const struct mlx5e_profile *profile, | |
4514 | void *ppriv) | |
4515 | { | |
4516 | int nch = profile->max_nch(mdev); | |
4517 | struct net_device *netdev; | |
4518 | struct mlx5e_priv *priv; | |
4519 | ||
4520 | netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv), | |
4521 | nch * profile->max_tc, | |
4522 | nch); | |
4523 | if (!netdev) { | |
4524 | mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n"); | |
4525 | return NULL; | |
4526 | } | |
4527 | ||
4528 | #ifdef CONFIG_RFS_ACCEL | |
4529 | netdev->rx_cpu_rmap = mdev->rmap; | |
4530 | #endif | |
4531 | ||
4532 | profile->init(mdev, netdev, profile, ppriv); | |
4533 | ||
4534 | netif_carrier_off(netdev); | |
4535 | ||
4536 | priv = netdev_priv(netdev); | |
4537 | ||
4538 | priv->wq = create_singlethread_workqueue("mlx5e"); | |
4539 | if (!priv->wq) | |
4540 | goto err_cleanup_nic; | |
4541 | ||
4542 | return netdev; | |
4543 | ||
4544 | err_cleanup_nic: | |
4545 | if (profile->cleanup) | |
4546 | profile->cleanup(priv); | |
4547 | free_netdev(netdev); | |
4548 | ||
4549 | return NULL; | |
4550 | } | |
4551 | ||
4552 | int mlx5e_attach_netdev(struct mlx5e_priv *priv) | |
4553 | { | |
4554 | struct mlx5_core_dev *mdev = priv->mdev; | |
4555 | const struct mlx5e_profile *profile; | |
4556 | int max_nch; | |
4557 | int err; | |
4558 | ||
4559 | profile = priv->profile; | |
4560 | clear_bit(MLX5E_STATE_DESTROYING, &priv->state); | |
4561 | ||
4562 | /* max number of channels may have changed */ | |
4563 | max_nch = mlx5e_get_max_num_channels(priv->mdev); | |
4564 | if (priv->channels.params.num_channels > max_nch) { | |
4565 | mlx5_core_warn(priv->mdev, "MLX5E: Reducing number of channels to %d\n", max_nch); | |
4566 | priv->channels.params.num_channels = max_nch; | |
4567 | mlx5e_build_default_indir_rqt(priv->channels.params.indirection_rqt, | |
4568 | MLX5E_INDIR_RQT_SIZE, max_nch); | |
4569 | } | |
4570 | ||
4571 | err = profile->init_tx(priv); | |
4572 | if (err) | |
4573 | goto out; | |
4574 | ||
4575 | err = mlx5e_open_drop_rq(mdev, &priv->drop_rq); | |
4576 | if (err) { | |
4577 | mlx5_core_err(mdev, "open drop rq failed, %d\n", err); | |
4578 | goto err_cleanup_tx; | |
4579 | } | |
4580 | ||
4581 | err = profile->init_rx(priv); | |
4582 | if (err) | |
4583 | goto err_close_drop_rq; | |
4584 | ||
4585 | mlx5e_create_q_counter(priv); | |
4586 | ||
4587 | if (profile->enable) | |
4588 | profile->enable(priv); | |
4589 | ||
4590 | return 0; | |
4591 | ||
4592 | err_close_drop_rq: | |
4593 | mlx5e_close_drop_rq(&priv->drop_rq); | |
4594 | ||
4595 | err_cleanup_tx: | |
4596 | profile->cleanup_tx(priv); | |
4597 | ||
4598 | out: | |
4599 | return err; | |
4600 | } | |
4601 | ||
4602 | void mlx5e_detach_netdev(struct mlx5e_priv *priv) | |
4603 | { | |
4604 | const struct mlx5e_profile *profile = priv->profile; | |
4605 | ||
4606 | set_bit(MLX5E_STATE_DESTROYING, &priv->state); | |
4607 | ||
4608 | if (profile->disable) | |
4609 | profile->disable(priv); | |
4610 | flush_workqueue(priv->wq); | |
4611 | ||
4612 | mlx5e_destroy_q_counter(priv); | |
4613 | profile->cleanup_rx(priv); | |
4614 | mlx5e_close_drop_rq(&priv->drop_rq); | |
4615 | profile->cleanup_tx(priv); | |
4616 | cancel_delayed_work_sync(&priv->update_stats_work); | |
4617 | } | |
4618 | ||
4619 | void mlx5e_destroy_netdev(struct mlx5e_priv *priv) | |
4620 | { | |
4621 | const struct mlx5e_profile *profile = priv->profile; | |
4622 | struct net_device *netdev = priv->netdev; | |
4623 | ||
4624 | destroy_workqueue(priv->wq); | |
4625 | if (profile->cleanup) | |
4626 | profile->cleanup(priv); | |
4627 | free_netdev(netdev); | |
4628 | } | |
4629 | ||
4630 | /* mlx5e_attach and mlx5e_detach scope should be only creating/destroying | |
4631 | * hardware contexts and to connect it to the current netdev. | |
4632 | */ | |
4633 | static int mlx5e_attach(struct mlx5_core_dev *mdev, void *vpriv) | |
4634 | { | |
4635 | struct mlx5e_priv *priv = vpriv; | |
4636 | struct net_device *netdev = priv->netdev; | |
4637 | int err; | |
4638 | ||
4639 | if (netif_device_present(netdev)) | |
4640 | return 0; | |
4641 | ||
4642 | err = mlx5e_create_mdev_resources(mdev); | |
4643 | if (err) | |
4644 | return err; | |
4645 | ||
4646 | err = mlx5e_attach_netdev(priv); | |
4647 | if (err) { | |
4648 | mlx5e_destroy_mdev_resources(mdev); | |
4649 | return err; | |
4650 | } | |
4651 | ||
4652 | return 0; | |
4653 | } | |
4654 | ||
4655 | static void mlx5e_detach(struct mlx5_core_dev *mdev, void *vpriv) | |
4656 | { | |
4657 | struct mlx5e_priv *priv = vpriv; | |
4658 | struct net_device *netdev = priv->netdev; | |
4659 | ||
4660 | if (!netif_device_present(netdev)) | |
4661 | return; | |
4662 | ||
4663 | mlx5e_detach_netdev(priv); | |
4664 | mlx5e_destroy_mdev_resources(mdev); | |
4665 | } | |
4666 | ||
4667 | static void *mlx5e_add(struct mlx5_core_dev *mdev) | |
4668 | { | |
4669 | struct net_device *netdev; | |
4670 | void *rpriv = NULL; | |
4671 | void *priv; | |
4672 | int err; | |
4673 | ||
4674 | err = mlx5e_check_required_hca_cap(mdev); | |
4675 | if (err) | |
4676 | return NULL; | |
4677 | ||
4678 | #ifdef CONFIG_MLX5_ESWITCH | |
4679 | if (MLX5_ESWITCH_MANAGER(mdev)) { | |
4680 | rpriv = mlx5e_alloc_nic_rep_priv(mdev); | |
4681 | if (!rpriv) { | |
4682 | mlx5_core_warn(mdev, "Failed to alloc NIC rep priv data\n"); | |
4683 | return NULL; | |
4684 | } | |
4685 | } | |
4686 | #endif | |
4687 | ||
4688 | netdev = mlx5e_create_netdev(mdev, &mlx5e_nic_profile, rpriv); | |
4689 | if (!netdev) { | |
4690 | mlx5_core_err(mdev, "mlx5e_create_netdev failed\n"); | |
4691 | goto err_free_rpriv; | |
4692 | } | |
4693 | ||
4694 | priv = netdev_priv(netdev); | |
4695 | ||
4696 | err = mlx5e_attach(mdev, priv); | |
4697 | if (err) { | |
4698 | mlx5_core_err(mdev, "mlx5e_attach failed, %d\n", err); | |
4699 | goto err_destroy_netdev; | |
4700 | } | |
4701 | ||
4702 | err = register_netdev(netdev); | |
4703 | if (err) { | |
4704 | mlx5_core_err(mdev, "register_netdev failed, %d\n", err); | |
4705 | goto err_detach; | |
4706 | } | |
4707 | ||
4708 | #ifdef CONFIG_MLX5_CORE_EN_DCB | |
4709 | mlx5e_dcbnl_init_app(priv); | |
4710 | #endif | |
4711 | return priv; | |
4712 | ||
4713 | err_detach: | |
4714 | mlx5e_detach(mdev, priv); | |
4715 | err_destroy_netdev: | |
4716 | mlx5e_destroy_netdev(priv); | |
4717 | err_free_rpriv: | |
4718 | kfree(rpriv); | |
4719 | return NULL; | |
4720 | } | |
4721 | ||
4722 | static void mlx5e_remove(struct mlx5_core_dev *mdev, void *vpriv) | |
4723 | { | |
4724 | struct mlx5e_priv *priv = vpriv; | |
4725 | void *ppriv = priv->ppriv; | |
4726 | ||
4727 | #ifdef CONFIG_MLX5_CORE_EN_DCB | |
4728 | mlx5e_dcbnl_delete_app(priv); | |
4729 | #endif | |
4730 | unregister_netdev(priv->netdev); | |
4731 | mlx5e_detach(mdev, vpriv); | |
4732 | mlx5e_destroy_netdev(priv); | |
4733 | kfree(ppriv); | |
4734 | } | |
4735 | ||
4736 | static void *mlx5e_get_netdev(void *vpriv) | |
4737 | { | |
4738 | struct mlx5e_priv *priv = vpriv; | |
4739 | ||
4740 | return priv->netdev; | |
4741 | } | |
4742 | ||
4743 | static struct mlx5_interface mlx5e_interface = { | |
4744 | .add = mlx5e_add, | |
4745 | .remove = mlx5e_remove, | |
4746 | .attach = mlx5e_attach, | |
4747 | .detach = mlx5e_detach, | |
4748 | .event = mlx5e_async_event, | |
4749 | .protocol = MLX5_INTERFACE_PROTOCOL_ETH, | |
4750 | .get_dev = mlx5e_get_netdev, | |
4751 | }; | |
4752 | ||
4753 | void mlx5e_init(void) | |
4754 | { | |
4755 | mlx5e_ipsec_build_inverse_table(); | |
4756 | mlx5e_build_ptys2ethtool_map(); | |
4757 | mlx5_register_interface(&mlx5e_interface); | |
4758 | } | |
4759 | ||
4760 | void mlx5e_cleanup(void) | |
4761 | { | |
4762 | mlx5_unregister_interface(&mlx5e_interface); | |
4763 | } |