2 * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved.
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:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
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.
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
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>
42 #include "en_accel/ipsec.h"
43 #include "en_accel/ipsec_rxtx.h"
44 #include "accel/ipsec.h"
47 struct mlx5e_rq_param
{
48 u32 rqc
[MLX5_ST_SZ_DW(rqc
)];
49 struct mlx5_wq_param wq
;
52 struct mlx5e_sq_param
{
53 u32 sqc
[MLX5_ST_SZ_DW(sqc
)];
54 struct mlx5_wq_param wq
;
57 struct mlx5e_cq_param
{
58 u32 cqc
[MLX5_ST_SZ_DW(cqc
)];
59 struct mlx5_wq_param wq
;
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
;
74 static bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev
*mdev
)
76 return MLX5_CAP_GEN(mdev
, striding_rq
) &&
77 MLX5_CAP_GEN(mdev
, umr_ptr_rlky
) &&
78 MLX5_CAP_ETH(mdev
, reg_umr_sq
);
81 void mlx5e_set_rq_type_params(struct mlx5_core_dev
*mdev
,
82 struct mlx5e_params
*params
, u8 rq_type
)
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
=
92 MLX5E_GET_PFLAG(params
, MLX5E_PFLAG_RX_CQE_COMPRESS
) ?
93 MLX5_MPWRQ_CQE_CMPRS_LOG_STRIDE_SZ(mdev
) :
94 MLX5_MPWRQ_DEF_LOG_STRIDE_SZ(mdev
);
95 params
->mpwqe_log_num_strides
= MLX5_MPWRQ_LOG_WQE_SZ
-
96 params
->mpwqe_log_stride_sz
;
98 default: /* MLX5_WQ_TYPE_LINKED_LIST */
99 params
->log_rq_size
= is_kdump_kernel() ?
100 MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE
:
101 MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE
;
102 params
->rq_headroom
= params
->xdp_prog
?
103 XDP_PACKET_HEADROOM
: MLX5_RX_HEADROOM
;
104 params
->rq_headroom
+= NET_IP_ALIGN
;
106 /* Extra room needed for build_skb */
107 params
->lro_wqe_sz
-= params
->rq_headroom
+
108 SKB_DATA_ALIGN(sizeof(struct skb_shared_info
));
111 mlx5_core_info(mdev
, "MLX5E: StrdRq(%d) RqSz(%ld) StrdSz(%ld) RxCqeCmprss(%d)\n",
112 params
->rq_wq_type
== MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ
,
113 BIT(params
->log_rq_size
),
114 BIT(params
->mpwqe_log_stride_sz
),
115 MLX5E_GET_PFLAG(params
, MLX5E_PFLAG_RX_CQE_COMPRESS
));
118 static void mlx5e_set_rq_params(struct mlx5_core_dev
*mdev
, struct mlx5e_params
*params
)
120 u8 rq_type
= mlx5e_check_fragmented_striding_rq_cap(mdev
) &&
121 !params
->xdp_prog
&& !MLX5_IPSEC_DEV(mdev
) ?
122 MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ
:
123 MLX5_WQ_TYPE_LINKED_LIST
;
124 mlx5e_set_rq_type_params(mdev
, params
, rq_type
);
127 static void mlx5e_update_carrier(struct mlx5e_priv
*priv
)
129 struct mlx5_core_dev
*mdev
= priv
->mdev
;
132 port_state
= mlx5_query_vport_state(mdev
,
133 MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT
,
136 if (port_state
== VPORT_STATE_UP
) {
137 netdev_info(priv
->netdev
, "Link up\n");
138 netif_carrier_on(priv
->netdev
);
140 netdev_info(priv
->netdev
, "Link down\n");
141 netif_carrier_off(priv
->netdev
);
145 static void mlx5e_update_carrier_work(struct work_struct
*work
)
147 struct mlx5e_priv
*priv
= container_of(work
, struct mlx5e_priv
,
148 update_carrier_work
);
150 mutex_lock(&priv
->state_lock
);
151 if (test_bit(MLX5E_STATE_OPENED
, &priv
->state
))
152 if (priv
->profile
->update_carrier
)
153 priv
->profile
->update_carrier(priv
);
154 mutex_unlock(&priv
->state_lock
);
157 static void mlx5e_tx_timeout_work(struct work_struct
*work
)
159 struct mlx5e_priv
*priv
= container_of(work
, struct mlx5e_priv
,
164 mutex_lock(&priv
->state_lock
);
165 if (!test_bit(MLX5E_STATE_OPENED
, &priv
->state
))
167 mlx5e_close_locked(priv
->netdev
);
168 err
= mlx5e_open_locked(priv
->netdev
);
170 netdev_err(priv
->netdev
, "mlx5e_open_locked failed recovering from a tx_timeout, err(%d).\n",
173 mutex_unlock(&priv
->state_lock
);
177 static void mlx5e_update_sw_counters(struct mlx5e_priv
*priv
)
179 struct mlx5e_sw_stats temp
, *s
= &temp
;
180 struct mlx5e_rq_stats
*rq_stats
;
181 struct mlx5e_sq_stats
*sq_stats
;
182 u64 tx_offload_none
= 0;
185 memset(s
, 0, sizeof(*s
));
186 for (i
= 0; i
< priv
->channels
.num
; i
++) {
187 struct mlx5e_channel
*c
= priv
->channels
.c
[i
];
189 rq_stats
= &c
->rq
.stats
;
191 s
->rx_packets
+= rq_stats
->packets
;
192 s
->rx_bytes
+= rq_stats
->bytes
;
193 s
->rx_lro_packets
+= rq_stats
->lro_packets
;
194 s
->rx_lro_bytes
+= rq_stats
->lro_bytes
;
195 s
->rx_csum_none
+= rq_stats
->csum_none
;
196 s
->rx_csum_complete
+= rq_stats
->csum_complete
;
197 s
->rx_csum_unnecessary_inner
+= rq_stats
->csum_unnecessary_inner
;
198 s
->rx_xdp_drop
+= rq_stats
->xdp_drop
;
199 s
->rx_xdp_tx
+= rq_stats
->xdp_tx
;
200 s
->rx_xdp_tx_full
+= rq_stats
->xdp_tx_full
;
201 s
->rx_wqe_err
+= rq_stats
->wqe_err
;
202 s
->rx_mpwqe_filler
+= rq_stats
->mpwqe_filler
;
203 s
->rx_buff_alloc_err
+= rq_stats
->buff_alloc_err
;
204 s
->rx_cqe_compress_blks
+= rq_stats
->cqe_compress_blks
;
205 s
->rx_cqe_compress_pkts
+= rq_stats
->cqe_compress_pkts
;
206 s
->rx_page_reuse
+= rq_stats
->page_reuse
;
207 s
->rx_cache_reuse
+= rq_stats
->cache_reuse
;
208 s
->rx_cache_full
+= rq_stats
->cache_full
;
209 s
->rx_cache_empty
+= rq_stats
->cache_empty
;
210 s
->rx_cache_busy
+= rq_stats
->cache_busy
;
212 for (j
= 0; j
< priv
->channels
.params
.num_tc
; j
++) {
213 sq_stats
= &c
->sq
[j
].stats
;
215 s
->tx_packets
+= sq_stats
->packets
;
216 s
->tx_bytes
+= sq_stats
->bytes
;
217 s
->tx_tso_packets
+= sq_stats
->tso_packets
;
218 s
->tx_tso_bytes
+= sq_stats
->tso_bytes
;
219 s
->tx_tso_inner_packets
+= sq_stats
->tso_inner_packets
;
220 s
->tx_tso_inner_bytes
+= sq_stats
->tso_inner_bytes
;
221 s
->tx_queue_stopped
+= sq_stats
->stopped
;
222 s
->tx_queue_wake
+= sq_stats
->wake
;
223 s
->tx_queue_dropped
+= sq_stats
->dropped
;
224 s
->tx_xmit_more
+= sq_stats
->xmit_more
;
225 s
->tx_csum_partial_inner
+= sq_stats
->csum_partial_inner
;
226 tx_offload_none
+= sq_stats
->csum_none
;
230 /* Update calculated offload counters */
231 s
->tx_csum_partial
= s
->tx_packets
- tx_offload_none
- s
->tx_csum_partial_inner
;
232 s
->rx_csum_unnecessary
= s
->rx_packets
- s
->rx_csum_none
- s
->rx_csum_complete
;
234 s
->link_down_events_phy
= MLX5_GET(ppcnt_reg
,
235 priv
->stats
.pport
.phy_counters
,
236 counter_set
.phys_layer_cntrs
.link_down_events
);
237 memcpy(&priv
->stats
.sw
, s
, sizeof(*s
));
240 static void mlx5e_update_vport_counters(struct mlx5e_priv
*priv
)
242 int outlen
= MLX5_ST_SZ_BYTES(query_vport_counter_out
);
243 u32
*out
= (u32
*)priv
->stats
.vport
.query_vport_out
;
244 u32 in
[MLX5_ST_SZ_DW(query_vport_counter_in
)] = {0};
245 struct mlx5_core_dev
*mdev
= priv
->mdev
;
247 MLX5_SET(query_vport_counter_in
, in
, opcode
,
248 MLX5_CMD_OP_QUERY_VPORT_COUNTER
);
249 MLX5_SET(query_vport_counter_in
, in
, op_mod
, 0);
250 MLX5_SET(query_vport_counter_in
, in
, other_vport
, 0);
252 mlx5_cmd_exec(mdev
, in
, sizeof(in
), out
, outlen
);
255 static void mlx5e_update_pport_counters(struct mlx5e_priv
*priv
, bool full
)
257 struct mlx5e_pport_stats
*pstats
= &priv
->stats
.pport
;
258 struct mlx5_core_dev
*mdev
= priv
->mdev
;
259 u32 in
[MLX5_ST_SZ_DW(ppcnt_reg
)] = {0};
260 int sz
= MLX5_ST_SZ_BYTES(ppcnt_reg
);
264 MLX5_SET(ppcnt_reg
, in
, local_port
, 1);
266 out
= pstats
->IEEE_802_3_counters
;
267 MLX5_SET(ppcnt_reg
, in
, grp
, MLX5_IEEE_802_3_COUNTERS_GROUP
);
268 mlx5_core_access_reg(mdev
, in
, sz
, out
, sz
, MLX5_REG_PPCNT
, 0, 0);
273 out
= pstats
->RFC_2863_counters
;
274 MLX5_SET(ppcnt_reg
, in
, grp
, MLX5_RFC_2863_COUNTERS_GROUP
);
275 mlx5_core_access_reg(mdev
, in
, sz
, out
, sz
, MLX5_REG_PPCNT
, 0, 0);
277 out
= pstats
->RFC_2819_counters
;
278 MLX5_SET(ppcnt_reg
, in
, grp
, MLX5_RFC_2819_COUNTERS_GROUP
);
279 mlx5_core_access_reg(mdev
, in
, sz
, out
, sz
, MLX5_REG_PPCNT
, 0, 0);
281 out
= pstats
->phy_counters
;
282 MLX5_SET(ppcnt_reg
, in
, grp
, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP
);
283 mlx5_core_access_reg(mdev
, in
, sz
, out
, sz
, MLX5_REG_PPCNT
, 0, 0);
285 if (MLX5_CAP_PCAM_FEATURE(mdev
, ppcnt_statistical_group
)) {
286 out
= pstats
->phy_statistical_counters
;
287 MLX5_SET(ppcnt_reg
, in
, grp
, MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP
);
288 mlx5_core_access_reg(mdev
, in
, sz
, out
, sz
, MLX5_REG_PPCNT
, 0, 0);
291 MLX5_SET(ppcnt_reg
, in
, grp
, MLX5_PER_PRIORITY_COUNTERS_GROUP
);
292 for (prio
= 0; prio
< NUM_PPORT_PRIO
; prio
++) {
293 out
= pstats
->per_prio_counters
[prio
];
294 MLX5_SET(ppcnt_reg
, in
, prio_tc
, prio
);
295 mlx5_core_access_reg(mdev
, in
, sz
, out
, sz
,
296 MLX5_REG_PPCNT
, 0, 0);
300 static void mlx5e_update_q_counter(struct mlx5e_priv
*priv
)
302 struct mlx5e_qcounter_stats
*qcnt
= &priv
->stats
.qcnt
;
303 u32 out
[MLX5_ST_SZ_DW(query_q_counter_out
)];
306 if (!priv
->q_counter
)
309 err
= mlx5_core_query_q_counter(priv
->mdev
, priv
->q_counter
, 0, out
, sizeof(out
));
313 qcnt
->rx_out_of_buffer
= MLX5_GET(query_q_counter_out
, out
, out_of_buffer
);
316 static void mlx5e_update_pcie_counters(struct mlx5e_priv
*priv
)
318 struct mlx5e_pcie_stats
*pcie_stats
= &priv
->stats
.pcie
;
319 struct mlx5_core_dev
*mdev
= priv
->mdev
;
320 u32 in
[MLX5_ST_SZ_DW(mpcnt_reg
)] = {0};
321 int sz
= MLX5_ST_SZ_BYTES(mpcnt_reg
);
324 if (!MLX5_CAP_MCAM_FEATURE(mdev
, pcie_performance_group
))
327 out
= pcie_stats
->pcie_perf_counters
;
328 MLX5_SET(mpcnt_reg
, in
, grp
, MLX5_PCIE_PERFORMANCE_COUNTERS_GROUP
);
329 mlx5_core_access_reg(mdev
, in
, sz
, out
, sz
, MLX5_REG_MPCNT
, 0, 0);
332 void mlx5e_update_stats(struct mlx5e_priv
*priv
, bool full
)
335 mlx5e_update_pcie_counters(priv
);
336 mlx5e_ipsec_update_stats(priv
);
338 mlx5e_update_pport_counters(priv
, full
);
339 mlx5e_update_vport_counters(priv
);
340 mlx5e_update_q_counter(priv
);
341 mlx5e_update_sw_counters(priv
);
344 static void mlx5e_update_ndo_stats(struct mlx5e_priv
*priv
)
346 mlx5e_update_stats(priv
, false);
349 void mlx5e_update_stats_work(struct work_struct
*work
)
351 struct delayed_work
*dwork
= to_delayed_work(work
);
352 struct mlx5e_priv
*priv
= container_of(dwork
, struct mlx5e_priv
,
354 mutex_lock(&priv
->state_lock
);
355 if (test_bit(MLX5E_STATE_OPENED
, &priv
->state
)) {
356 priv
->profile
->update_stats(priv
);
357 queue_delayed_work(priv
->wq
, dwork
,
358 msecs_to_jiffies(MLX5E_UPDATE_STATS_INTERVAL
));
360 mutex_unlock(&priv
->state_lock
);
363 static void mlx5e_async_event(struct mlx5_core_dev
*mdev
, void *vpriv
,
364 enum mlx5_dev_event event
, unsigned long param
)
366 struct mlx5e_priv
*priv
= vpriv
;
367 struct ptp_clock_event ptp_event
;
368 struct mlx5_eqe
*eqe
= NULL
;
370 if (!test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED
, &priv
->state
))
374 case MLX5_DEV_EVENT_PORT_UP
:
375 case MLX5_DEV_EVENT_PORT_DOWN
:
376 queue_work(priv
->wq
, &priv
->update_carrier_work
);
378 case MLX5_DEV_EVENT_PPS
:
379 eqe
= (struct mlx5_eqe
*)param
;
380 ptp_event
.index
= eqe
->data
.pps
.pin
;
381 ptp_event
.timestamp
=
382 timecounter_cyc2time(&priv
->tstamp
.clock
,
383 be64_to_cpu(eqe
->data
.pps
.time_stamp
));
384 mlx5e_pps_event_handler(vpriv
, &ptp_event
);
391 static void mlx5e_enable_async_events(struct mlx5e_priv
*priv
)
393 set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED
, &priv
->state
);
396 static void mlx5e_disable_async_events(struct mlx5e_priv
*priv
)
398 clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED
, &priv
->state
);
399 synchronize_irq(mlx5_get_msix_vec(priv
->mdev
, MLX5_EQ_VEC_ASYNC
));
402 static inline int mlx5e_get_wqe_mtt_sz(void)
404 /* UMR copies MTTs in units of MLX5_UMR_MTT_ALIGNMENT bytes.
405 * To avoid copying garbage after the mtt array, we allocate
408 return ALIGN(MLX5_MPWRQ_PAGES_PER_WQE
* sizeof(__be64
),
409 MLX5_UMR_MTT_ALIGNMENT
);
412 static inline void mlx5e_build_umr_wqe(struct mlx5e_rq
*rq
,
413 struct mlx5e_icosq
*sq
,
414 struct mlx5e_umr_wqe
*wqe
,
417 struct mlx5_wqe_ctrl_seg
*cseg
= &wqe
->ctrl
;
418 struct mlx5_wqe_umr_ctrl_seg
*ucseg
= &wqe
->uctrl
;
419 struct mlx5_wqe_data_seg
*dseg
= &wqe
->data
;
420 struct mlx5e_mpw_info
*wi
= &rq
->mpwqe
.info
[ix
];
421 u8 ds_cnt
= DIV_ROUND_UP(sizeof(*wqe
), MLX5_SEND_WQE_DS
);
422 u32 umr_wqe_mtt_offset
= mlx5e_get_wqe_mtt_offset(rq
, ix
);
424 cseg
->qpn_ds
= cpu_to_be32((sq
->sqn
<< MLX5_WQE_CTRL_QPN_SHIFT
) |
426 cseg
->fm_ce_se
= MLX5_WQE_CTRL_CQ_UPDATE
;
427 cseg
->imm
= rq
->mkey_be
;
429 ucseg
->flags
= MLX5_UMR_TRANSLATION_OFFSET_EN
;
430 ucseg
->xlt_octowords
=
431 cpu_to_be16(MLX5_MTT_OCTW(MLX5_MPWRQ_PAGES_PER_WQE
));
432 ucseg
->bsf_octowords
=
433 cpu_to_be16(MLX5_MTT_OCTW(umr_wqe_mtt_offset
));
434 ucseg
->mkey_mask
= cpu_to_be64(MLX5_MKEY_MASK_FREE
);
436 dseg
->lkey
= sq
->mkey_be
;
437 dseg
->addr
= cpu_to_be64(wi
->umr
.mtt_addr
);
440 static int mlx5e_rq_alloc_mpwqe_info(struct mlx5e_rq
*rq
,
441 struct mlx5e_channel
*c
)
443 int wq_sz
= mlx5_wq_ll_get_size(&rq
->wq
);
444 int mtt_sz
= mlx5e_get_wqe_mtt_sz();
445 int mtt_alloc
= mtt_sz
+ MLX5_UMR_ALIGN
- 1;
448 rq
->mpwqe
.info
= kzalloc_node(wq_sz
* sizeof(*rq
->mpwqe
.info
),
449 GFP_KERNEL
, cpu_to_node(c
->cpu
));
453 /* We allocate more than mtt_sz as we will align the pointer */
454 rq
->mpwqe
.mtt_no_align
= kzalloc_node(mtt_alloc
* wq_sz
, GFP_KERNEL
,
455 cpu_to_node(c
->cpu
));
456 if (unlikely(!rq
->mpwqe
.mtt_no_align
))
457 goto err_free_wqe_info
;
459 for (i
= 0; i
< wq_sz
; i
++) {
460 struct mlx5e_mpw_info
*wi
= &rq
->mpwqe
.info
[i
];
462 wi
->umr
.mtt
= PTR_ALIGN(rq
->mpwqe
.mtt_no_align
+ i
* mtt_alloc
,
464 wi
->umr
.mtt_addr
= dma_map_single(c
->pdev
, wi
->umr
.mtt
, mtt_sz
,
466 if (unlikely(dma_mapping_error(c
->pdev
, wi
->umr
.mtt_addr
)))
469 mlx5e_build_umr_wqe(rq
, &c
->icosq
, &wi
->umr
.wqe
, i
);
476 struct mlx5e_mpw_info
*wi
= &rq
->mpwqe
.info
[i
];
478 dma_unmap_single(c
->pdev
, wi
->umr
.mtt_addr
, mtt_sz
,
481 kfree(rq
->mpwqe
.mtt_no_align
);
483 kfree(rq
->mpwqe
.info
);
489 static void mlx5e_rq_free_mpwqe_info(struct mlx5e_rq
*rq
)
491 int wq_sz
= mlx5_wq_ll_get_size(&rq
->wq
);
492 int mtt_sz
= mlx5e_get_wqe_mtt_sz();
495 for (i
= 0; i
< wq_sz
; i
++) {
496 struct mlx5e_mpw_info
*wi
= &rq
->mpwqe
.info
[i
];
498 dma_unmap_single(rq
->pdev
, wi
->umr
.mtt_addr
, mtt_sz
,
501 kfree(rq
->mpwqe
.mtt_no_align
);
502 kfree(rq
->mpwqe
.info
);
505 static int mlx5e_create_umr_mkey(struct mlx5_core_dev
*mdev
,
506 u64 npages
, u8 page_shift
,
507 struct mlx5_core_mkey
*umr_mkey
)
509 int inlen
= MLX5_ST_SZ_BYTES(create_mkey_in
);
514 if (!MLX5E_VALID_NUM_MTTS(npages
))
517 in
= kvzalloc(inlen
, GFP_KERNEL
);
521 mkc
= MLX5_ADDR_OF(create_mkey_in
, in
, memory_key_mkey_entry
);
523 MLX5_SET(mkc
, mkc
, free
, 1);
524 MLX5_SET(mkc
, mkc
, umr_en
, 1);
525 MLX5_SET(mkc
, mkc
, lw
, 1);
526 MLX5_SET(mkc
, mkc
, lr
, 1);
527 MLX5_SET(mkc
, mkc
, access_mode
, MLX5_MKC_ACCESS_MODE_MTT
);
529 MLX5_SET(mkc
, mkc
, qpn
, 0xffffff);
530 MLX5_SET(mkc
, mkc
, pd
, mdev
->mlx5e_res
.pdn
);
531 MLX5_SET64(mkc
, mkc
, len
, npages
<< page_shift
);
532 MLX5_SET(mkc
, mkc
, translations_octword_size
,
533 MLX5_MTT_OCTW(npages
));
534 MLX5_SET(mkc
, mkc
, log_page_size
, page_shift
);
536 err
= mlx5_core_create_mkey(mdev
, umr_mkey
, in
, inlen
);
542 static int mlx5e_create_rq_umr_mkey(struct mlx5_core_dev
*mdev
, struct mlx5e_rq
*rq
)
544 u64 num_mtts
= MLX5E_REQUIRED_MTTS(mlx5_wq_ll_get_size(&rq
->wq
));
546 return mlx5e_create_umr_mkey(mdev
, num_mtts
, PAGE_SHIFT
, &rq
->umr_mkey
);
549 static int mlx5e_alloc_rq(struct mlx5e_channel
*c
,
550 struct mlx5e_params
*params
,
551 struct mlx5e_rq_param
*rqp
,
554 struct mlx5_core_dev
*mdev
= c
->mdev
;
555 void *rqc
= rqp
->rqc
;
556 void *rqc_wq
= MLX5_ADDR_OF(rqc
, rqc
, wq
);
563 rqp
->wq
.db_numa_node
= cpu_to_node(c
->cpu
);
565 err
= mlx5_wq_ll_create(mdev
, &rqp
->wq
, rqc_wq
, &rq
->wq
,
570 rq
->wq
.db
= &rq
->wq
.db
[MLX5_RCV_DBR
];
572 wq_sz
= mlx5_wq_ll_get_size(&rq
->wq
);
574 rq
->wq_type
= params
->rq_wq_type
;
576 rq
->netdev
= c
->netdev
;
577 rq
->tstamp
= c
->tstamp
;
582 rq
->xdp_prog
= params
->xdp_prog
? bpf_prog_inc(params
->xdp_prog
) : NULL
;
583 if (IS_ERR(rq
->xdp_prog
)) {
584 err
= PTR_ERR(rq
->xdp_prog
);
586 goto err_rq_wq_destroy
;
589 rq
->buff
.map_dir
= rq
->xdp_prog
? DMA_BIDIRECTIONAL
: DMA_FROM_DEVICE
;
590 rq
->rx_headroom
= params
->rq_headroom
;
592 switch (rq
->wq_type
) {
593 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ
:
595 rq
->alloc_wqe
= mlx5e_alloc_rx_mpwqe
;
596 rq
->dealloc_wqe
= mlx5e_dealloc_rx_mpwqe
;
598 rq
->handle_rx_cqe
= c
->priv
->profile
->rx_handlers
.handle_rx_cqe_mpwqe
;
599 #ifdef CONFIG_MLX5_EN_IPSEC
600 if (MLX5_IPSEC_DEV(mdev
)) {
602 netdev_err(c
->netdev
, "MPWQE RQ with IPSec offload not supported\n");
603 goto err_rq_wq_destroy
;
606 if (!rq
->handle_rx_cqe
) {
608 netdev_err(c
->netdev
, "RX handler of MPWQE RQ is not set, err %d\n", err
);
609 goto err_rq_wq_destroy
;
612 rq
->mpwqe_stride_sz
= BIT(params
->mpwqe_log_stride_sz
);
613 rq
->mpwqe_num_strides
= BIT(params
->mpwqe_log_num_strides
);
615 rq
->buff
.wqe_sz
= rq
->mpwqe_stride_sz
* rq
->mpwqe_num_strides
;
616 byte_count
= rq
->buff
.wqe_sz
;
618 err
= mlx5e_create_rq_umr_mkey(mdev
, rq
);
620 goto err_rq_wq_destroy
;
621 rq
->mkey_be
= cpu_to_be32(rq
->umr_mkey
.key
);
623 err
= mlx5e_rq_alloc_mpwqe_info(rq
, c
);
625 goto err_destroy_umr_mkey
;
627 default: /* MLX5_WQ_TYPE_LINKED_LIST */
629 kzalloc_node(wq_sz
* sizeof(*rq
->wqe
.frag_info
),
630 GFP_KERNEL
, cpu_to_node(c
->cpu
));
631 if (!rq
->wqe
.frag_info
) {
633 goto err_rq_wq_destroy
;
635 rq
->alloc_wqe
= mlx5e_alloc_rx_wqe
;
636 rq
->dealloc_wqe
= mlx5e_dealloc_rx_wqe
;
638 #ifdef CONFIG_MLX5_EN_IPSEC
640 rq
->handle_rx_cqe
= mlx5e_ipsec_handle_rx_cqe
;
643 rq
->handle_rx_cqe
= c
->priv
->profile
->rx_handlers
.handle_rx_cqe
;
644 if (!rq
->handle_rx_cqe
) {
645 kfree(rq
->wqe
.frag_info
);
647 netdev_err(c
->netdev
, "RX handler of RQ is not set, err %d\n", err
);
648 goto err_rq_wq_destroy
;
651 rq
->buff
.wqe_sz
= params
->lro_en
?
653 MLX5E_SW2HW_MTU(c
->priv
, c
->netdev
->mtu
);
654 #ifdef CONFIG_MLX5_EN_IPSEC
655 if (MLX5_IPSEC_DEV(mdev
))
656 rq
->buff
.wqe_sz
+= MLX5E_METADATA_ETHER_LEN
;
658 rq
->wqe
.page_reuse
= !params
->xdp_prog
&& !params
->lro_en
;
659 byte_count
= rq
->buff
.wqe_sz
;
661 /* calc the required page order */
662 rq
->wqe
.frag_sz
= MLX5_SKB_FRAG_SZ(rq
->rx_headroom
+ byte_count
);
663 npages
= DIV_ROUND_UP(rq
->wqe
.frag_sz
, PAGE_SIZE
);
664 rq
->buff
.page_order
= order_base_2(npages
);
666 byte_count
|= MLX5_HW_START_PADDING
;
667 rq
->mkey_be
= c
->mkey_be
;
670 for (i
= 0; i
< wq_sz
; i
++) {
671 struct mlx5e_rx_wqe
*wqe
= mlx5_wq_ll_get_wqe(&rq
->wq
, i
);
673 wqe
->data
.byte_count
= cpu_to_be32(byte_count
);
674 wqe
->data
.lkey
= rq
->mkey_be
;
677 INIT_WORK(&rq
->am
.work
, mlx5e_rx_am_work
);
678 rq
->am
.mode
= params
->rx_cq_period_mode
;
679 rq
->page_cache
.head
= 0;
680 rq
->page_cache
.tail
= 0;
684 err_destroy_umr_mkey
:
685 mlx5_core_destroy_mkey(mdev
, &rq
->umr_mkey
);
689 bpf_prog_put(rq
->xdp_prog
);
690 mlx5_wq_destroy(&rq
->wq_ctrl
);
695 static void mlx5e_free_rq(struct mlx5e_rq
*rq
)
700 bpf_prog_put(rq
->xdp_prog
);
702 switch (rq
->wq_type
) {
703 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ
:
704 mlx5e_rq_free_mpwqe_info(rq
);
705 mlx5_core_destroy_mkey(rq
->mdev
, &rq
->umr_mkey
);
707 default: /* MLX5_WQ_TYPE_LINKED_LIST */
708 kfree(rq
->wqe
.frag_info
);
711 for (i
= rq
->page_cache
.head
; i
!= rq
->page_cache
.tail
;
712 i
= (i
+ 1) & (MLX5E_CACHE_SIZE
- 1)) {
713 struct mlx5e_dma_info
*dma_info
= &rq
->page_cache
.page_cache
[i
];
715 mlx5e_page_release(rq
, dma_info
, false);
717 mlx5_wq_destroy(&rq
->wq_ctrl
);
720 static int mlx5e_create_rq(struct mlx5e_rq
*rq
,
721 struct mlx5e_rq_param
*param
)
723 struct mlx5_core_dev
*mdev
= rq
->mdev
;
731 inlen
= MLX5_ST_SZ_BYTES(create_rq_in
) +
732 sizeof(u64
) * rq
->wq_ctrl
.buf
.npages
;
733 in
= kvzalloc(inlen
, GFP_KERNEL
);
737 rqc
= MLX5_ADDR_OF(create_rq_in
, in
, ctx
);
738 wq
= MLX5_ADDR_OF(rqc
, rqc
, wq
);
740 memcpy(rqc
, param
->rqc
, sizeof(param
->rqc
));
742 MLX5_SET(rqc
, rqc
, cqn
, rq
->cq
.mcq
.cqn
);
743 MLX5_SET(rqc
, rqc
, state
, MLX5_RQC_STATE_RST
);
744 MLX5_SET(wq
, wq
, log_wq_pg_sz
, rq
->wq_ctrl
.buf
.page_shift
-
745 MLX5_ADAPTER_PAGE_SHIFT
);
746 MLX5_SET64(wq
, wq
, dbr_addr
, rq
->wq_ctrl
.db
.dma
);
748 mlx5_fill_page_array(&rq
->wq_ctrl
.buf
,
749 (__be64
*)MLX5_ADDR_OF(wq
, wq
, pas
));
751 err
= mlx5_core_create_rq(mdev
, in
, inlen
, &rq
->rqn
);
758 static int mlx5e_modify_rq_state(struct mlx5e_rq
*rq
, int curr_state
,
761 struct mlx5e_channel
*c
= rq
->channel
;
762 struct mlx5_core_dev
*mdev
= c
->mdev
;
769 inlen
= MLX5_ST_SZ_BYTES(modify_rq_in
);
770 in
= kvzalloc(inlen
, GFP_KERNEL
);
774 rqc
= MLX5_ADDR_OF(modify_rq_in
, in
, ctx
);
776 MLX5_SET(modify_rq_in
, in
, rq_state
, curr_state
);
777 MLX5_SET(rqc
, rqc
, state
, next_state
);
779 err
= mlx5_core_modify_rq(mdev
, rq
->rqn
, in
, inlen
);
786 static int mlx5e_modify_rq_scatter_fcs(struct mlx5e_rq
*rq
, bool enable
)
788 struct mlx5e_channel
*c
= rq
->channel
;
789 struct mlx5e_priv
*priv
= c
->priv
;
790 struct mlx5_core_dev
*mdev
= priv
->mdev
;
797 inlen
= MLX5_ST_SZ_BYTES(modify_rq_in
);
798 in
= kvzalloc(inlen
, GFP_KERNEL
);
802 rqc
= MLX5_ADDR_OF(modify_rq_in
, in
, ctx
);
804 MLX5_SET(modify_rq_in
, in
, rq_state
, MLX5_RQC_STATE_RDY
);
805 MLX5_SET64(modify_rq_in
, in
, modify_bitmask
,
806 MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_SCATTER_FCS
);
807 MLX5_SET(rqc
, rqc
, scatter_fcs
, enable
);
808 MLX5_SET(rqc
, rqc
, state
, MLX5_RQC_STATE_RDY
);
810 err
= mlx5_core_modify_rq(mdev
, rq
->rqn
, in
, inlen
);
817 static int mlx5e_modify_rq_vsd(struct mlx5e_rq
*rq
, bool vsd
)
819 struct mlx5e_channel
*c
= rq
->channel
;
820 struct mlx5_core_dev
*mdev
= c
->mdev
;
826 inlen
= MLX5_ST_SZ_BYTES(modify_rq_in
);
827 in
= kvzalloc(inlen
, GFP_KERNEL
);
831 rqc
= MLX5_ADDR_OF(modify_rq_in
, in
, ctx
);
833 MLX5_SET(modify_rq_in
, in
, rq_state
, MLX5_RQC_STATE_RDY
);
834 MLX5_SET64(modify_rq_in
, in
, modify_bitmask
,
835 MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_VSD
);
836 MLX5_SET(rqc
, rqc
, vsd
, vsd
);
837 MLX5_SET(rqc
, rqc
, state
, MLX5_RQC_STATE_RDY
);
839 err
= mlx5_core_modify_rq(mdev
, rq
->rqn
, in
, inlen
);
846 static void mlx5e_destroy_rq(struct mlx5e_rq
*rq
)
848 mlx5_core_destroy_rq(rq
->mdev
, rq
->rqn
);
851 static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq
*rq
)
853 unsigned long exp_time
= jiffies
+ msecs_to_jiffies(20000);
854 struct mlx5e_channel
*c
= rq
->channel
;
856 struct mlx5_wq_ll
*wq
= &rq
->wq
;
857 u16 min_wqes
= mlx5_min_rx_wqes(rq
->wq_type
, mlx5_wq_ll_get_size(wq
));
859 while (time_before(jiffies
, exp_time
)) {
860 if (wq
->cur_sz
>= min_wqes
)
866 netdev_warn(c
->netdev
, "Failed to get min RX wqes on RQN[0x%x] wq cur_sz(%d) min_rx_wqes(%d)\n",
867 rq
->rqn
, wq
->cur_sz
, min_wqes
);
871 static void mlx5e_free_rx_descs(struct mlx5e_rq
*rq
)
873 struct mlx5_wq_ll
*wq
= &rq
->wq
;
874 struct mlx5e_rx_wqe
*wqe
;
878 /* UMR WQE (if in progress) is always at wq->head */
879 if (test_bit(MLX5E_RQ_STATE_UMR_WQE_IN_PROGRESS
, &rq
->state
))
880 mlx5e_free_rx_mpwqe(rq
, &rq
->mpwqe
.info
[wq
->head
]);
882 while (!mlx5_wq_ll_is_empty(wq
)) {
883 wqe_ix_be
= *wq
->tail_next
;
884 wqe_ix
= be16_to_cpu(wqe_ix_be
);
885 wqe
= mlx5_wq_ll_get_wqe(&rq
->wq
, wqe_ix
);
886 rq
->dealloc_wqe(rq
, wqe_ix
);
887 mlx5_wq_ll_pop(&rq
->wq
, wqe_ix_be
,
888 &wqe
->next
.next_wqe_index
);
891 if (rq
->wq_type
== MLX5_WQ_TYPE_LINKED_LIST
&& rq
->wqe
.page_reuse
) {
892 /* Clean outstanding pages on handled WQEs that decided to do page-reuse,
893 * but yet to be re-posted.
895 int wq_sz
= mlx5_wq_ll_get_size(&rq
->wq
);
897 for (wqe_ix
= 0; wqe_ix
< wq_sz
; wqe_ix
++)
898 rq
->dealloc_wqe(rq
, wqe_ix
);
902 static int mlx5e_open_rq(struct mlx5e_channel
*c
,
903 struct mlx5e_params
*params
,
904 struct mlx5e_rq_param
*param
,
909 err
= mlx5e_alloc_rq(c
, params
, param
, rq
);
913 err
= mlx5e_create_rq(rq
, param
);
917 err
= mlx5e_modify_rq_state(rq
, MLX5_RQC_STATE_RST
, MLX5_RQC_STATE_RDY
);
921 if (params
->rx_am_enabled
)
922 set_bit(MLX5E_RQ_STATE_AM
, &c
->rq
.state
);
927 mlx5e_destroy_rq(rq
);
934 static void mlx5e_activate_rq(struct mlx5e_rq
*rq
)
936 struct mlx5e_icosq
*sq
= &rq
->channel
->icosq
;
937 u16 pi
= sq
->pc
& sq
->wq
.sz_m1
;
938 struct mlx5e_tx_wqe
*nopwqe
;
940 set_bit(MLX5E_RQ_STATE_ENABLED
, &rq
->state
);
941 sq
->db
.ico_wqe
[pi
].opcode
= MLX5_OPCODE_NOP
;
942 sq
->db
.ico_wqe
[pi
].num_wqebbs
= 1;
943 nopwqe
= mlx5e_post_nop(&sq
->wq
, sq
->sqn
, &sq
->pc
);
944 mlx5e_notify_hw(&sq
->wq
, sq
->pc
, sq
->uar_map
, &nopwqe
->ctrl
);
947 static void mlx5e_deactivate_rq(struct mlx5e_rq
*rq
)
949 clear_bit(MLX5E_RQ_STATE_ENABLED
, &rq
->state
);
950 napi_synchronize(&rq
->channel
->napi
); /* prevent mlx5e_post_rx_wqes */
953 static void mlx5e_close_rq(struct mlx5e_rq
*rq
)
955 cancel_work_sync(&rq
->am
.work
);
956 mlx5e_destroy_rq(rq
);
957 mlx5e_free_rx_descs(rq
);
961 static void mlx5e_free_xdpsq_db(struct mlx5e_xdpsq
*sq
)
966 static int mlx5e_alloc_xdpsq_db(struct mlx5e_xdpsq
*sq
, int numa
)
968 int wq_sz
= mlx5_wq_cyc_get_size(&sq
->wq
);
970 sq
->db
.di
= kzalloc_node(sizeof(*sq
->db
.di
) * wq_sz
,
973 mlx5e_free_xdpsq_db(sq
);
980 static int mlx5e_alloc_xdpsq(struct mlx5e_channel
*c
,
981 struct mlx5e_params
*params
,
982 struct mlx5e_sq_param
*param
,
983 struct mlx5e_xdpsq
*sq
)
985 void *sqc_wq
= MLX5_ADDR_OF(sqc
, param
->sqc
, wq
);
986 struct mlx5_core_dev
*mdev
= c
->mdev
;
990 sq
->mkey_be
= c
->mkey_be
;
992 sq
->uar_map
= mdev
->mlx5e_res
.bfreg
.map
;
993 sq
->min_inline_mode
= params
->tx_min_inline_mode
;
995 param
->wq
.db_numa_node
= cpu_to_node(c
->cpu
);
996 err
= mlx5_wq_cyc_create(mdev
, ¶m
->wq
, sqc_wq
, &sq
->wq
, &sq
->wq_ctrl
);
999 sq
->wq
.db
= &sq
->wq
.db
[MLX5_SND_DBR
];
1001 err
= mlx5e_alloc_xdpsq_db(sq
, cpu_to_node(c
->cpu
));
1003 goto err_sq_wq_destroy
;
1008 mlx5_wq_destroy(&sq
->wq_ctrl
);
1013 static void mlx5e_free_xdpsq(struct mlx5e_xdpsq
*sq
)
1015 mlx5e_free_xdpsq_db(sq
);
1016 mlx5_wq_destroy(&sq
->wq_ctrl
);
1019 static void mlx5e_free_icosq_db(struct mlx5e_icosq
*sq
)
1021 kfree(sq
->db
.ico_wqe
);
1024 static int mlx5e_alloc_icosq_db(struct mlx5e_icosq
*sq
, int numa
)
1026 u8 wq_sz
= mlx5_wq_cyc_get_size(&sq
->wq
);
1028 sq
->db
.ico_wqe
= kzalloc_node(sizeof(*sq
->db
.ico_wqe
) * wq_sz
,
1030 if (!sq
->db
.ico_wqe
)
1036 static int mlx5e_alloc_icosq(struct mlx5e_channel
*c
,
1037 struct mlx5e_sq_param
*param
,
1038 struct mlx5e_icosq
*sq
)
1040 void *sqc_wq
= MLX5_ADDR_OF(sqc
, param
->sqc
, wq
);
1041 struct mlx5_core_dev
*mdev
= c
->mdev
;
1045 sq
->mkey_be
= c
->mkey_be
;
1047 sq
->uar_map
= mdev
->mlx5e_res
.bfreg
.map
;
1049 param
->wq
.db_numa_node
= cpu_to_node(c
->cpu
);
1050 err
= mlx5_wq_cyc_create(mdev
, ¶m
->wq
, sqc_wq
, &sq
->wq
, &sq
->wq_ctrl
);
1053 sq
->wq
.db
= &sq
->wq
.db
[MLX5_SND_DBR
];
1055 err
= mlx5e_alloc_icosq_db(sq
, cpu_to_node(c
->cpu
));
1057 goto err_sq_wq_destroy
;
1059 sq
->edge
= (sq
->wq
.sz_m1
+ 1) - MLX5E_ICOSQ_MAX_WQEBBS
;
1064 mlx5_wq_destroy(&sq
->wq_ctrl
);
1069 static void mlx5e_free_icosq(struct mlx5e_icosq
*sq
)
1071 mlx5e_free_icosq_db(sq
);
1072 mlx5_wq_destroy(&sq
->wq_ctrl
);
1075 static void mlx5e_free_txqsq_db(struct mlx5e_txqsq
*sq
)
1077 kfree(sq
->db
.wqe_info
);
1078 kfree(sq
->db
.dma_fifo
);
1081 static int mlx5e_alloc_txqsq_db(struct mlx5e_txqsq
*sq
, int numa
)
1083 int wq_sz
= mlx5_wq_cyc_get_size(&sq
->wq
);
1084 int df_sz
= wq_sz
* MLX5_SEND_WQEBB_NUM_DS
;
1086 sq
->db
.dma_fifo
= kzalloc_node(df_sz
* sizeof(*sq
->db
.dma_fifo
),
1088 sq
->db
.wqe_info
= kzalloc_node(wq_sz
* sizeof(*sq
->db
.wqe_info
),
1090 if (!sq
->db
.dma_fifo
|| !sq
->db
.wqe_info
) {
1091 mlx5e_free_txqsq_db(sq
);
1095 sq
->dma_fifo_mask
= df_sz
- 1;
1100 static int mlx5e_alloc_txqsq(struct mlx5e_channel
*c
,
1102 struct mlx5e_params
*params
,
1103 struct mlx5e_sq_param
*param
,
1104 struct mlx5e_txqsq
*sq
)
1106 void *sqc_wq
= MLX5_ADDR_OF(sqc
, param
->sqc
, wq
);
1107 struct mlx5_core_dev
*mdev
= c
->mdev
;
1111 sq
->tstamp
= c
->tstamp
;
1112 sq
->mkey_be
= c
->mkey_be
;
1114 sq
->txq_ix
= txq_ix
;
1115 sq
->uar_map
= mdev
->mlx5e_res
.bfreg
.map
;
1116 sq
->max_inline
= params
->tx_max_inline
;
1117 sq
->min_inline_mode
= params
->tx_min_inline_mode
;
1118 if (MLX5_IPSEC_DEV(c
->priv
->mdev
))
1119 set_bit(MLX5E_SQ_STATE_IPSEC
, &sq
->state
);
1121 param
->wq
.db_numa_node
= cpu_to_node(c
->cpu
);
1122 err
= mlx5_wq_cyc_create(mdev
, ¶m
->wq
, sqc_wq
, &sq
->wq
, &sq
->wq_ctrl
);
1125 sq
->wq
.db
= &sq
->wq
.db
[MLX5_SND_DBR
];
1127 err
= mlx5e_alloc_txqsq_db(sq
, cpu_to_node(c
->cpu
));
1129 goto err_sq_wq_destroy
;
1131 sq
->edge
= (sq
->wq
.sz_m1
+ 1) - MLX5_SEND_WQE_MAX_WQEBBS
;
1136 mlx5_wq_destroy(&sq
->wq_ctrl
);
1141 static void mlx5e_free_txqsq(struct mlx5e_txqsq
*sq
)
1143 mlx5e_free_txqsq_db(sq
);
1144 mlx5_wq_destroy(&sq
->wq_ctrl
);
1147 struct mlx5e_create_sq_param
{
1148 struct mlx5_wq_ctrl
*wq_ctrl
;
1155 static int mlx5e_create_sq(struct mlx5_core_dev
*mdev
,
1156 struct mlx5e_sq_param
*param
,
1157 struct mlx5e_create_sq_param
*csp
,
1166 inlen
= MLX5_ST_SZ_BYTES(create_sq_in
) +
1167 sizeof(u64
) * csp
->wq_ctrl
->buf
.npages
;
1168 in
= kvzalloc(inlen
, GFP_KERNEL
);
1172 sqc
= MLX5_ADDR_OF(create_sq_in
, in
, ctx
);
1173 wq
= MLX5_ADDR_OF(sqc
, sqc
, wq
);
1175 memcpy(sqc
, param
->sqc
, sizeof(param
->sqc
));
1176 MLX5_SET(sqc
, sqc
, tis_lst_sz
, csp
->tis_lst_sz
);
1177 MLX5_SET(sqc
, sqc
, tis_num_0
, csp
->tisn
);
1178 MLX5_SET(sqc
, sqc
, cqn
, csp
->cqn
);
1180 if (MLX5_CAP_ETH(mdev
, wqe_inline_mode
) == MLX5_CAP_INLINE_MODE_VPORT_CONTEXT
)
1181 MLX5_SET(sqc
, sqc
, min_wqe_inline_mode
, csp
->min_inline_mode
);
1183 MLX5_SET(sqc
, sqc
, state
, MLX5_SQC_STATE_RST
);
1185 MLX5_SET(wq
, wq
, wq_type
, MLX5_WQ_TYPE_CYCLIC
);
1186 MLX5_SET(wq
, wq
, uar_page
, mdev
->mlx5e_res
.bfreg
.index
);
1187 MLX5_SET(wq
, wq
, log_wq_pg_sz
, csp
->wq_ctrl
->buf
.page_shift
-
1188 MLX5_ADAPTER_PAGE_SHIFT
);
1189 MLX5_SET64(wq
, wq
, dbr_addr
, csp
->wq_ctrl
->db
.dma
);
1191 mlx5_fill_page_array(&csp
->wq_ctrl
->buf
, (__be64
*)MLX5_ADDR_OF(wq
, wq
, pas
));
1193 err
= mlx5_core_create_sq(mdev
, in
, inlen
, sqn
);
1200 struct mlx5e_modify_sq_param
{
1207 static int mlx5e_modify_sq(struct mlx5_core_dev
*mdev
, u32 sqn
,
1208 struct mlx5e_modify_sq_param
*p
)
1215 inlen
= MLX5_ST_SZ_BYTES(modify_sq_in
);
1216 in
= kvzalloc(inlen
, GFP_KERNEL
);
1220 sqc
= MLX5_ADDR_OF(modify_sq_in
, in
, ctx
);
1222 MLX5_SET(modify_sq_in
, in
, sq_state
, p
->curr_state
);
1223 MLX5_SET(sqc
, sqc
, state
, p
->next_state
);
1224 if (p
->rl_update
&& p
->next_state
== MLX5_SQC_STATE_RDY
) {
1225 MLX5_SET64(modify_sq_in
, in
, modify_bitmask
, 1);
1226 MLX5_SET(sqc
, sqc
, packet_pacing_rate_limit_index
, p
->rl_index
);
1229 err
= mlx5_core_modify_sq(mdev
, sqn
, in
, inlen
);
1236 static void mlx5e_destroy_sq(struct mlx5_core_dev
*mdev
, u32 sqn
)
1238 mlx5_core_destroy_sq(mdev
, sqn
);
1241 static int mlx5e_create_sq_rdy(struct mlx5_core_dev
*mdev
,
1242 struct mlx5e_sq_param
*param
,
1243 struct mlx5e_create_sq_param
*csp
,
1246 struct mlx5e_modify_sq_param msp
= {0};
1249 err
= mlx5e_create_sq(mdev
, param
, csp
, sqn
);
1253 msp
.curr_state
= MLX5_SQC_STATE_RST
;
1254 msp
.next_state
= MLX5_SQC_STATE_RDY
;
1255 err
= mlx5e_modify_sq(mdev
, *sqn
, &msp
);
1257 mlx5e_destroy_sq(mdev
, *sqn
);
1262 static int mlx5e_set_sq_maxrate(struct net_device
*dev
,
1263 struct mlx5e_txqsq
*sq
, u32 rate
);
1265 static int mlx5e_open_txqsq(struct mlx5e_channel
*c
,
1268 struct mlx5e_params
*params
,
1269 struct mlx5e_sq_param
*param
,
1270 struct mlx5e_txqsq
*sq
)
1272 struct mlx5e_create_sq_param csp
= {};
1276 err
= mlx5e_alloc_txqsq(c
, txq_ix
, params
, param
, sq
);
1282 csp
.cqn
= sq
->cq
.mcq
.cqn
;
1283 csp
.wq_ctrl
= &sq
->wq_ctrl
;
1284 csp
.min_inline_mode
= sq
->min_inline_mode
;
1285 err
= mlx5e_create_sq_rdy(c
->mdev
, param
, &csp
, &sq
->sqn
);
1287 goto err_free_txqsq
;
1289 tx_rate
= c
->priv
->tx_rates
[sq
->txq_ix
];
1291 mlx5e_set_sq_maxrate(c
->netdev
, sq
, tx_rate
);
1296 clear_bit(MLX5E_SQ_STATE_ENABLED
, &sq
->state
);
1297 mlx5e_free_txqsq(sq
);
1302 static void mlx5e_activate_txqsq(struct mlx5e_txqsq
*sq
)
1304 sq
->txq
= netdev_get_tx_queue(sq
->channel
->netdev
, sq
->txq_ix
);
1305 set_bit(MLX5E_SQ_STATE_ENABLED
, &sq
->state
);
1306 netdev_tx_reset_queue(sq
->txq
);
1307 netif_tx_start_queue(sq
->txq
);
1310 static inline void netif_tx_disable_queue(struct netdev_queue
*txq
)
1312 __netif_tx_lock_bh(txq
);
1313 netif_tx_stop_queue(txq
);
1314 __netif_tx_unlock_bh(txq
);
1317 static void mlx5e_deactivate_txqsq(struct mlx5e_txqsq
*sq
)
1319 struct mlx5e_channel
*c
= sq
->channel
;
1321 clear_bit(MLX5E_SQ_STATE_ENABLED
, &sq
->state
);
1322 /* prevent netif_tx_wake_queue */
1323 napi_synchronize(&c
->napi
);
1325 netif_tx_disable_queue(sq
->txq
);
1327 /* last doorbell out, godspeed .. */
1328 if (mlx5e_wqc_has_room_for(&sq
->wq
, sq
->cc
, sq
->pc
, 1)) {
1329 struct mlx5e_tx_wqe
*nop
;
1331 sq
->db
.wqe_info
[(sq
->pc
& sq
->wq
.sz_m1
)].skb
= NULL
;
1332 nop
= mlx5e_post_nop(&sq
->wq
, sq
->sqn
, &sq
->pc
);
1333 mlx5e_notify_hw(&sq
->wq
, sq
->pc
, sq
->uar_map
, &nop
->ctrl
);
1337 static void mlx5e_close_txqsq(struct mlx5e_txqsq
*sq
)
1339 struct mlx5e_channel
*c
= sq
->channel
;
1340 struct mlx5_core_dev
*mdev
= c
->mdev
;
1342 mlx5e_destroy_sq(mdev
, sq
->sqn
);
1344 mlx5_rl_remove_rate(mdev
, sq
->rate_limit
);
1345 mlx5e_free_txqsq_descs(sq
);
1346 mlx5e_free_txqsq(sq
);
1349 static int mlx5e_open_icosq(struct mlx5e_channel
*c
,
1350 struct mlx5e_params
*params
,
1351 struct mlx5e_sq_param
*param
,
1352 struct mlx5e_icosq
*sq
)
1354 struct mlx5e_create_sq_param csp
= {};
1357 err
= mlx5e_alloc_icosq(c
, param
, sq
);
1361 csp
.cqn
= sq
->cq
.mcq
.cqn
;
1362 csp
.wq_ctrl
= &sq
->wq_ctrl
;
1363 csp
.min_inline_mode
= params
->tx_min_inline_mode
;
1364 set_bit(MLX5E_SQ_STATE_ENABLED
, &sq
->state
);
1365 err
= mlx5e_create_sq_rdy(c
->mdev
, param
, &csp
, &sq
->sqn
);
1367 goto err_free_icosq
;
1372 clear_bit(MLX5E_SQ_STATE_ENABLED
, &sq
->state
);
1373 mlx5e_free_icosq(sq
);
1378 static void mlx5e_close_icosq(struct mlx5e_icosq
*sq
)
1380 struct mlx5e_channel
*c
= sq
->channel
;
1382 clear_bit(MLX5E_SQ_STATE_ENABLED
, &sq
->state
);
1383 napi_synchronize(&c
->napi
);
1385 mlx5e_destroy_sq(c
->mdev
, sq
->sqn
);
1386 mlx5e_free_icosq(sq
);
1389 static int mlx5e_open_xdpsq(struct mlx5e_channel
*c
,
1390 struct mlx5e_params
*params
,
1391 struct mlx5e_sq_param
*param
,
1392 struct mlx5e_xdpsq
*sq
)
1394 unsigned int ds_cnt
= MLX5E_XDP_TX_DS_COUNT
;
1395 struct mlx5e_create_sq_param csp
= {};
1396 unsigned int inline_hdr_sz
= 0;
1400 err
= mlx5e_alloc_xdpsq(c
, params
, param
, sq
);
1405 csp
.tisn
= c
->priv
->tisn
[0]; /* tc = 0 */
1406 csp
.cqn
= sq
->cq
.mcq
.cqn
;
1407 csp
.wq_ctrl
= &sq
->wq_ctrl
;
1408 csp
.min_inline_mode
= sq
->min_inline_mode
;
1409 set_bit(MLX5E_SQ_STATE_ENABLED
, &sq
->state
);
1410 err
= mlx5e_create_sq_rdy(c
->mdev
, param
, &csp
, &sq
->sqn
);
1412 goto err_free_xdpsq
;
1414 if (sq
->min_inline_mode
!= MLX5_INLINE_MODE_NONE
) {
1415 inline_hdr_sz
= MLX5E_XDP_MIN_INLINE
;
1419 /* Pre initialize fixed WQE fields */
1420 for (i
= 0; i
< mlx5_wq_cyc_get_size(&sq
->wq
); i
++) {
1421 struct mlx5e_tx_wqe
*wqe
= mlx5_wq_cyc_get_wqe(&sq
->wq
, i
);
1422 struct mlx5_wqe_ctrl_seg
*cseg
= &wqe
->ctrl
;
1423 struct mlx5_wqe_eth_seg
*eseg
= &wqe
->eth
;
1424 struct mlx5_wqe_data_seg
*dseg
;
1426 cseg
->qpn_ds
= cpu_to_be32((sq
->sqn
<< 8) | ds_cnt
);
1427 eseg
->inline_hdr
.sz
= cpu_to_be16(inline_hdr_sz
);
1429 dseg
= (struct mlx5_wqe_data_seg
*)cseg
+ (ds_cnt
- 1);
1430 dseg
->lkey
= sq
->mkey_be
;
1436 clear_bit(MLX5E_SQ_STATE_ENABLED
, &sq
->state
);
1437 mlx5e_free_xdpsq(sq
);
1442 static void mlx5e_close_xdpsq(struct mlx5e_xdpsq
*sq
)
1444 struct mlx5e_channel
*c
= sq
->channel
;
1446 clear_bit(MLX5E_SQ_STATE_ENABLED
, &sq
->state
);
1447 napi_synchronize(&c
->napi
);
1449 mlx5e_destroy_sq(c
->mdev
, sq
->sqn
);
1450 mlx5e_free_xdpsq_descs(sq
);
1451 mlx5e_free_xdpsq(sq
);
1454 static int mlx5e_alloc_cq_common(struct mlx5_core_dev
*mdev
,
1455 struct mlx5e_cq_param
*param
,
1456 struct mlx5e_cq
*cq
)
1458 struct mlx5_core_cq
*mcq
= &cq
->mcq
;
1464 err
= mlx5_cqwq_create(mdev
, ¶m
->wq
, param
->cqc
, &cq
->wq
,
1469 mlx5_vector2eqn(mdev
, param
->eq_ix
, &eqn_not_used
, &irqn
);
1472 mcq
->set_ci_db
= cq
->wq_ctrl
.db
.db
;
1473 mcq
->arm_db
= cq
->wq_ctrl
.db
.db
+ 1;
1474 *mcq
->set_ci_db
= 0;
1476 mcq
->vector
= param
->eq_ix
;
1477 mcq
->comp
= mlx5e_completion_event
;
1478 mcq
->event
= mlx5e_cq_error_event
;
1481 for (i
= 0; i
< mlx5_cqwq_get_size(&cq
->wq
); i
++) {
1482 struct mlx5_cqe64
*cqe
= mlx5_cqwq_get_wqe(&cq
->wq
, i
);
1492 static int mlx5e_alloc_cq(struct mlx5e_channel
*c
,
1493 struct mlx5e_cq_param
*param
,
1494 struct mlx5e_cq
*cq
)
1496 struct mlx5_core_dev
*mdev
= c
->priv
->mdev
;
1499 param
->wq
.buf_numa_node
= cpu_to_node(c
->cpu
);
1500 param
->wq
.db_numa_node
= cpu_to_node(c
->cpu
);
1501 param
->eq_ix
= c
->ix
;
1503 err
= mlx5e_alloc_cq_common(mdev
, param
, cq
);
1505 cq
->napi
= &c
->napi
;
1511 static void mlx5e_free_cq(struct mlx5e_cq
*cq
)
1513 mlx5_cqwq_destroy(&cq
->wq_ctrl
);
1516 static int mlx5e_create_cq(struct mlx5e_cq
*cq
, struct mlx5e_cq_param
*param
)
1518 struct mlx5_core_dev
*mdev
= cq
->mdev
;
1519 struct mlx5_core_cq
*mcq
= &cq
->mcq
;
1524 unsigned int irqn_not_used
;
1528 inlen
= MLX5_ST_SZ_BYTES(create_cq_in
) +
1529 sizeof(u64
) * cq
->wq_ctrl
.frag_buf
.npages
;
1530 in
= kvzalloc(inlen
, GFP_KERNEL
);
1534 cqc
= MLX5_ADDR_OF(create_cq_in
, in
, cq_context
);
1536 memcpy(cqc
, param
->cqc
, sizeof(param
->cqc
));
1538 mlx5_fill_page_frag_array(&cq
->wq_ctrl
.frag_buf
,
1539 (__be64
*)MLX5_ADDR_OF(create_cq_in
, in
, pas
));
1541 mlx5_vector2eqn(mdev
, param
->eq_ix
, &eqn
, &irqn_not_used
);
1543 MLX5_SET(cqc
, cqc
, cq_period_mode
, param
->cq_period_mode
);
1544 MLX5_SET(cqc
, cqc
, c_eqn
, eqn
);
1545 MLX5_SET(cqc
, cqc
, uar_page
, mdev
->priv
.uar
->index
);
1546 MLX5_SET(cqc
, cqc
, log_page_size
, cq
->wq_ctrl
.frag_buf
.page_shift
-
1547 MLX5_ADAPTER_PAGE_SHIFT
);
1548 MLX5_SET64(cqc
, cqc
, dbr_addr
, cq
->wq_ctrl
.db
.dma
);
1550 err
= mlx5_core_create_cq(mdev
, mcq
, in
, inlen
);
1562 static void mlx5e_destroy_cq(struct mlx5e_cq
*cq
)
1564 mlx5_core_destroy_cq(cq
->mdev
, &cq
->mcq
);
1567 static int mlx5e_open_cq(struct mlx5e_channel
*c
,
1568 struct mlx5e_cq_moder moder
,
1569 struct mlx5e_cq_param
*param
,
1570 struct mlx5e_cq
*cq
)
1572 struct mlx5_core_dev
*mdev
= c
->mdev
;
1575 err
= mlx5e_alloc_cq(c
, param
, cq
);
1579 err
= mlx5e_create_cq(cq
, param
);
1583 if (MLX5_CAP_GEN(mdev
, cq_moderation
))
1584 mlx5_core_modify_cq_moderation(mdev
, &cq
->mcq
, moder
.usec
, moder
.pkts
);
1593 static void mlx5e_close_cq(struct mlx5e_cq
*cq
)
1595 mlx5e_destroy_cq(cq
);
1599 static int mlx5e_get_cpu(struct mlx5e_priv
*priv
, int ix
)
1601 return cpumask_first(priv
->mdev
->priv
.irq_info
[ix
].mask
);
1604 static int mlx5e_open_tx_cqs(struct mlx5e_channel
*c
,
1605 struct mlx5e_params
*params
,
1606 struct mlx5e_channel_param
*cparam
)
1611 for (tc
= 0; tc
< c
->num_tc
; tc
++) {
1612 err
= mlx5e_open_cq(c
, params
->tx_cq_moderation
,
1613 &cparam
->tx_cq
, &c
->sq
[tc
].cq
);
1615 goto err_close_tx_cqs
;
1621 for (tc
--; tc
>= 0; tc
--)
1622 mlx5e_close_cq(&c
->sq
[tc
].cq
);
1627 static void mlx5e_close_tx_cqs(struct mlx5e_channel
*c
)
1631 for (tc
= 0; tc
< c
->num_tc
; tc
++)
1632 mlx5e_close_cq(&c
->sq
[tc
].cq
);
1635 static int mlx5e_open_sqs(struct mlx5e_channel
*c
,
1636 struct mlx5e_params
*params
,
1637 struct mlx5e_channel_param
*cparam
)
1642 for (tc
= 0; tc
< params
->num_tc
; tc
++) {
1643 int txq_ix
= c
->ix
+ tc
* params
->num_channels
;
1645 err
= mlx5e_open_txqsq(c
, c
->priv
->tisn
[tc
], txq_ix
,
1646 params
, &cparam
->sq
, &c
->sq
[tc
]);
1654 for (tc
--; tc
>= 0; tc
--)
1655 mlx5e_close_txqsq(&c
->sq
[tc
]);
1660 static void mlx5e_close_sqs(struct mlx5e_channel
*c
)
1664 for (tc
= 0; tc
< c
->num_tc
; tc
++)
1665 mlx5e_close_txqsq(&c
->sq
[tc
]);
1668 static int mlx5e_set_sq_maxrate(struct net_device
*dev
,
1669 struct mlx5e_txqsq
*sq
, u32 rate
)
1671 struct mlx5e_priv
*priv
= netdev_priv(dev
);
1672 struct mlx5_core_dev
*mdev
= priv
->mdev
;
1673 struct mlx5e_modify_sq_param msp
= {0};
1677 if (rate
== sq
->rate_limit
)
1682 /* remove current rl index to free space to next ones */
1683 mlx5_rl_remove_rate(mdev
, sq
->rate_limit
);
1688 err
= mlx5_rl_add_rate(mdev
, rate
, &rl_index
);
1690 netdev_err(dev
, "Failed configuring rate %u: %d\n",
1696 msp
.curr_state
= MLX5_SQC_STATE_RDY
;
1697 msp
.next_state
= MLX5_SQC_STATE_RDY
;
1698 msp
.rl_index
= rl_index
;
1699 msp
.rl_update
= true;
1700 err
= mlx5e_modify_sq(mdev
, sq
->sqn
, &msp
);
1702 netdev_err(dev
, "Failed configuring rate %u: %d\n",
1704 /* remove the rate from the table */
1706 mlx5_rl_remove_rate(mdev
, rate
);
1710 sq
->rate_limit
= rate
;
1714 static int mlx5e_set_tx_maxrate(struct net_device
*dev
, int index
, u32 rate
)
1716 struct mlx5e_priv
*priv
= netdev_priv(dev
);
1717 struct mlx5_core_dev
*mdev
= priv
->mdev
;
1718 struct mlx5e_txqsq
*sq
= priv
->txq2sq
[index
];
1721 if (!mlx5_rl_is_supported(mdev
)) {
1722 netdev_err(dev
, "Rate limiting is not supported on this device\n");
1726 /* rate is given in Mb/sec, HW config is in Kb/sec */
1729 /* Check whether rate in valid range, 0 is always valid */
1730 if (rate
&& !mlx5_rl_is_in_range(mdev
, rate
)) {
1731 netdev_err(dev
, "TX rate %u, is not in range\n", rate
);
1735 mutex_lock(&priv
->state_lock
);
1736 if (test_bit(MLX5E_STATE_OPENED
, &priv
->state
))
1737 err
= mlx5e_set_sq_maxrate(dev
, sq
, rate
);
1739 priv
->tx_rates
[index
] = rate
;
1740 mutex_unlock(&priv
->state_lock
);
1745 static int mlx5e_open_channel(struct mlx5e_priv
*priv
, int ix
,
1746 struct mlx5e_params
*params
,
1747 struct mlx5e_channel_param
*cparam
,
1748 struct mlx5e_channel
**cp
)
1750 struct mlx5e_cq_moder icocq_moder
= {0, 0};
1751 struct net_device
*netdev
= priv
->netdev
;
1752 int cpu
= mlx5e_get_cpu(priv
, ix
);
1753 struct mlx5e_channel
*c
;
1756 c
= kzalloc_node(sizeof(*c
), GFP_KERNEL
, cpu_to_node(cpu
));
1761 c
->mdev
= priv
->mdev
;
1762 c
->tstamp
= &priv
->tstamp
;
1765 c
->pdev
= &priv
->mdev
->pdev
->dev
;
1766 c
->netdev
= priv
->netdev
;
1767 c
->mkey_be
= cpu_to_be32(priv
->mdev
->mlx5e_res
.mkey
.key
);
1768 c
->num_tc
= params
->num_tc
;
1769 c
->xdp
= !!params
->xdp_prog
;
1771 netif_napi_add(netdev
, &c
->napi
, mlx5e_napi_poll
, 64);
1773 err
= mlx5e_open_cq(c
, icocq_moder
, &cparam
->icosq_cq
, &c
->icosq
.cq
);
1777 err
= mlx5e_open_tx_cqs(c
, params
, cparam
);
1779 goto err_close_icosq_cq
;
1781 err
= mlx5e_open_cq(c
, params
->rx_cq_moderation
, &cparam
->rx_cq
, &c
->rq
.cq
);
1783 goto err_close_tx_cqs
;
1785 /* XDP SQ CQ params are same as normal TXQ sq CQ params */
1786 err
= c
->xdp
? mlx5e_open_cq(c
, params
->tx_cq_moderation
,
1787 &cparam
->tx_cq
, &c
->rq
.xdpsq
.cq
) : 0;
1789 goto err_close_rx_cq
;
1791 napi_enable(&c
->napi
);
1793 err
= mlx5e_open_icosq(c
, params
, &cparam
->icosq
, &c
->icosq
);
1795 goto err_disable_napi
;
1797 err
= mlx5e_open_sqs(c
, params
, cparam
);
1799 goto err_close_icosq
;
1801 err
= c
->xdp
? mlx5e_open_xdpsq(c
, params
, &cparam
->xdp_sq
, &c
->rq
.xdpsq
) : 0;
1805 err
= mlx5e_open_rq(c
, params
, &cparam
->rq
, &c
->rq
);
1807 goto err_close_xdp_sq
;
1814 mlx5e_close_xdpsq(&c
->rq
.xdpsq
);
1820 mlx5e_close_icosq(&c
->icosq
);
1823 napi_disable(&c
->napi
);
1825 mlx5e_close_cq(&c
->rq
.xdpsq
.cq
);
1828 mlx5e_close_cq(&c
->rq
.cq
);
1831 mlx5e_close_tx_cqs(c
);
1834 mlx5e_close_cq(&c
->icosq
.cq
);
1837 netif_napi_del(&c
->napi
);
1843 static void mlx5e_activate_channel(struct mlx5e_channel
*c
)
1847 for (tc
= 0; tc
< c
->num_tc
; tc
++)
1848 mlx5e_activate_txqsq(&c
->sq
[tc
]);
1849 mlx5e_activate_rq(&c
->rq
);
1850 netif_set_xps_queue(c
->netdev
, get_cpu_mask(c
->cpu
), c
->ix
);
1853 static void mlx5e_deactivate_channel(struct mlx5e_channel
*c
)
1857 mlx5e_deactivate_rq(&c
->rq
);
1858 for (tc
= 0; tc
< c
->num_tc
; tc
++)
1859 mlx5e_deactivate_txqsq(&c
->sq
[tc
]);
1862 static void mlx5e_close_channel(struct mlx5e_channel
*c
)
1864 mlx5e_close_rq(&c
->rq
);
1866 mlx5e_close_xdpsq(&c
->rq
.xdpsq
);
1868 mlx5e_close_icosq(&c
->icosq
);
1869 napi_disable(&c
->napi
);
1871 mlx5e_close_cq(&c
->rq
.xdpsq
.cq
);
1872 mlx5e_close_cq(&c
->rq
.cq
);
1873 mlx5e_close_tx_cqs(c
);
1874 mlx5e_close_cq(&c
->icosq
.cq
);
1875 netif_napi_del(&c
->napi
);
1880 static void mlx5e_build_rq_param(struct mlx5e_priv
*priv
,
1881 struct mlx5e_params
*params
,
1882 struct mlx5e_rq_param
*param
)
1884 void *rqc
= param
->rqc
;
1885 void *wq
= MLX5_ADDR_OF(rqc
, rqc
, wq
);
1887 switch (params
->rq_wq_type
) {
1888 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ
:
1889 MLX5_SET(wq
, wq
, log_wqe_num_of_strides
, params
->mpwqe_log_num_strides
- 9);
1890 MLX5_SET(wq
, wq
, log_wqe_stride_size
, params
->mpwqe_log_stride_sz
- 6);
1891 MLX5_SET(wq
, wq
, wq_type
, MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ
);
1893 default: /* MLX5_WQ_TYPE_LINKED_LIST */
1894 MLX5_SET(wq
, wq
, wq_type
, MLX5_WQ_TYPE_LINKED_LIST
);
1897 MLX5_SET(wq
, wq
, end_padding_mode
, MLX5_WQ_END_PAD_MODE_ALIGN
);
1898 MLX5_SET(wq
, wq
, log_wq_stride
, ilog2(sizeof(struct mlx5e_rx_wqe
)));
1899 MLX5_SET(wq
, wq
, log_wq_sz
, params
->log_rq_size
);
1900 MLX5_SET(wq
, wq
, pd
, priv
->mdev
->mlx5e_res
.pdn
);
1901 MLX5_SET(rqc
, rqc
, counter_set_id
, priv
->q_counter
);
1902 MLX5_SET(rqc
, rqc
, vsd
, params
->vlan_strip_disable
);
1903 MLX5_SET(rqc
, rqc
, scatter_fcs
, params
->scatter_fcs_en
);
1905 param
->wq
.buf_numa_node
= dev_to_node(&priv
->mdev
->pdev
->dev
);
1906 param
->wq
.linear
= 1;
1909 static void mlx5e_build_drop_rq_param(struct mlx5e_rq_param
*param
)
1911 void *rqc
= param
->rqc
;
1912 void *wq
= MLX5_ADDR_OF(rqc
, rqc
, wq
);
1914 MLX5_SET(wq
, wq
, wq_type
, MLX5_WQ_TYPE_LINKED_LIST
);
1915 MLX5_SET(wq
, wq
, log_wq_stride
, ilog2(sizeof(struct mlx5e_rx_wqe
)));
1918 static void mlx5e_build_sq_param_common(struct mlx5e_priv
*priv
,
1919 struct mlx5e_sq_param
*param
)
1921 void *sqc
= param
->sqc
;
1922 void *wq
= MLX5_ADDR_OF(sqc
, sqc
, wq
);
1924 MLX5_SET(wq
, wq
, log_wq_stride
, ilog2(MLX5_SEND_WQE_BB
));
1925 MLX5_SET(wq
, wq
, pd
, priv
->mdev
->mlx5e_res
.pdn
);
1927 param
->wq
.buf_numa_node
= dev_to_node(&priv
->mdev
->pdev
->dev
);
1930 static void mlx5e_build_sq_param(struct mlx5e_priv
*priv
,
1931 struct mlx5e_params
*params
,
1932 struct mlx5e_sq_param
*param
)
1934 void *sqc
= param
->sqc
;
1935 void *wq
= MLX5_ADDR_OF(sqc
, sqc
, wq
);
1937 mlx5e_build_sq_param_common(priv
, param
);
1938 MLX5_SET(wq
, wq
, log_wq_sz
, params
->log_sq_size
);
1939 MLX5_SET(sqc
, sqc
, allow_swp
, !!MLX5_IPSEC_DEV(priv
->mdev
));
1942 static void mlx5e_build_common_cq_param(struct mlx5e_priv
*priv
,
1943 struct mlx5e_cq_param
*param
)
1945 void *cqc
= param
->cqc
;
1947 MLX5_SET(cqc
, cqc
, uar_page
, priv
->mdev
->priv
.uar
->index
);
1950 static void mlx5e_build_rx_cq_param(struct mlx5e_priv
*priv
,
1951 struct mlx5e_params
*params
,
1952 struct mlx5e_cq_param
*param
)
1954 void *cqc
= param
->cqc
;
1957 switch (params
->rq_wq_type
) {
1958 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ
:
1959 log_cq_size
= params
->log_rq_size
+ params
->mpwqe_log_num_strides
;
1961 default: /* MLX5_WQ_TYPE_LINKED_LIST */
1962 log_cq_size
= params
->log_rq_size
;
1965 MLX5_SET(cqc
, cqc
, log_cq_size
, log_cq_size
);
1966 if (MLX5E_GET_PFLAG(params
, MLX5E_PFLAG_RX_CQE_COMPRESS
)) {
1967 MLX5_SET(cqc
, cqc
, mini_cqe_res_format
, MLX5_CQE_FORMAT_CSUM
);
1968 MLX5_SET(cqc
, cqc
, cqe_comp_en
, 1);
1971 mlx5e_build_common_cq_param(priv
, param
);
1974 static void mlx5e_build_tx_cq_param(struct mlx5e_priv
*priv
,
1975 struct mlx5e_params
*params
,
1976 struct mlx5e_cq_param
*param
)
1978 void *cqc
= param
->cqc
;
1980 MLX5_SET(cqc
, cqc
, log_cq_size
, params
->log_sq_size
);
1982 mlx5e_build_common_cq_param(priv
, param
);
1984 param
->cq_period_mode
= MLX5_CQ_PERIOD_MODE_START_FROM_EQE
;
1987 static void mlx5e_build_ico_cq_param(struct mlx5e_priv
*priv
,
1989 struct mlx5e_cq_param
*param
)
1991 void *cqc
= param
->cqc
;
1993 MLX5_SET(cqc
, cqc
, log_cq_size
, log_wq_size
);
1995 mlx5e_build_common_cq_param(priv
, param
);
1997 param
->cq_period_mode
= MLX5_CQ_PERIOD_MODE_START_FROM_EQE
;
2000 static void mlx5e_build_icosq_param(struct mlx5e_priv
*priv
,
2002 struct mlx5e_sq_param
*param
)
2004 void *sqc
= param
->sqc
;
2005 void *wq
= MLX5_ADDR_OF(sqc
, sqc
, wq
);
2007 mlx5e_build_sq_param_common(priv
, param
);
2009 MLX5_SET(wq
, wq
, log_wq_sz
, log_wq_size
);
2010 MLX5_SET(sqc
, sqc
, reg_umr
, MLX5_CAP_ETH(priv
->mdev
, reg_umr_sq
));
2013 static void mlx5e_build_xdpsq_param(struct mlx5e_priv
*priv
,
2014 struct mlx5e_params
*params
,
2015 struct mlx5e_sq_param
*param
)
2017 void *sqc
= param
->sqc
;
2018 void *wq
= MLX5_ADDR_OF(sqc
, sqc
, wq
);
2020 mlx5e_build_sq_param_common(priv
, param
);
2021 MLX5_SET(wq
, wq
, log_wq_sz
, params
->log_sq_size
);
2024 static void mlx5e_build_channel_param(struct mlx5e_priv
*priv
,
2025 struct mlx5e_params
*params
,
2026 struct mlx5e_channel_param
*cparam
)
2028 u8 icosq_log_wq_sz
= MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE
;
2030 mlx5e_build_rq_param(priv
, params
, &cparam
->rq
);
2031 mlx5e_build_sq_param(priv
, params
, &cparam
->sq
);
2032 mlx5e_build_xdpsq_param(priv
, params
, &cparam
->xdp_sq
);
2033 mlx5e_build_icosq_param(priv
, icosq_log_wq_sz
, &cparam
->icosq
);
2034 mlx5e_build_rx_cq_param(priv
, params
, &cparam
->rx_cq
);
2035 mlx5e_build_tx_cq_param(priv
, params
, &cparam
->tx_cq
);
2036 mlx5e_build_ico_cq_param(priv
, icosq_log_wq_sz
, &cparam
->icosq_cq
);
2039 int mlx5e_open_channels(struct mlx5e_priv
*priv
,
2040 struct mlx5e_channels
*chs
)
2042 struct mlx5e_channel_param
*cparam
;
2046 chs
->num
= chs
->params
.num_channels
;
2048 chs
->c
= kcalloc(chs
->num
, sizeof(struct mlx5e_channel
*), GFP_KERNEL
);
2049 cparam
= kzalloc(sizeof(struct mlx5e_channel_param
), GFP_KERNEL
);
2050 if (!chs
->c
|| !cparam
)
2053 mlx5e_build_channel_param(priv
, &chs
->params
, cparam
);
2054 for (i
= 0; i
< chs
->num
; i
++) {
2055 err
= mlx5e_open_channel(priv
, i
, &chs
->params
, cparam
, &chs
->c
[i
]);
2057 goto err_close_channels
;
2064 for (i
--; i
>= 0; i
--)
2065 mlx5e_close_channel(chs
->c
[i
]);
2074 static void mlx5e_activate_channels(struct mlx5e_channels
*chs
)
2078 for (i
= 0; i
< chs
->num
; i
++)
2079 mlx5e_activate_channel(chs
->c
[i
]);
2082 static int mlx5e_wait_channels_min_rx_wqes(struct mlx5e_channels
*chs
)
2087 for (i
= 0; i
< chs
->num
; i
++) {
2088 err
= mlx5e_wait_for_min_rx_wqes(&chs
->c
[i
]->rq
);
2096 static void mlx5e_deactivate_channels(struct mlx5e_channels
*chs
)
2100 for (i
= 0; i
< chs
->num
; i
++)
2101 mlx5e_deactivate_channel(chs
->c
[i
]);
2104 void mlx5e_close_channels(struct mlx5e_channels
*chs
)
2108 for (i
= 0; i
< chs
->num
; i
++)
2109 mlx5e_close_channel(chs
->c
[i
]);
2116 mlx5e_create_rqt(struct mlx5e_priv
*priv
, int sz
, struct mlx5e_rqt
*rqt
)
2118 struct mlx5_core_dev
*mdev
= priv
->mdev
;
2125 inlen
= MLX5_ST_SZ_BYTES(create_rqt_in
) + sizeof(u32
) * sz
;
2126 in
= kvzalloc(inlen
, GFP_KERNEL
);
2130 rqtc
= MLX5_ADDR_OF(create_rqt_in
, in
, rqt_context
);
2132 MLX5_SET(rqtc
, rqtc
, rqt_actual_size
, sz
);
2133 MLX5_SET(rqtc
, rqtc
, rqt_max_size
, sz
);
2135 for (i
= 0; i
< sz
; i
++)
2136 MLX5_SET(rqtc
, rqtc
, rq_num
[i
], priv
->drop_rq
.rqn
);
2138 err
= mlx5_core_create_rqt(mdev
, in
, inlen
, &rqt
->rqtn
);
2140 rqt
->enabled
= true;
2146 void mlx5e_destroy_rqt(struct mlx5e_priv
*priv
, struct mlx5e_rqt
*rqt
)
2148 rqt
->enabled
= false;
2149 mlx5_core_destroy_rqt(priv
->mdev
, rqt
->rqtn
);
2152 int mlx5e_create_indirect_rqt(struct mlx5e_priv
*priv
)
2154 struct mlx5e_rqt
*rqt
= &priv
->indir_rqt
;
2157 err
= mlx5e_create_rqt(priv
, MLX5E_INDIR_RQT_SIZE
, rqt
);
2159 mlx5_core_warn(priv
->mdev
, "create indirect rqts failed, %d\n", err
);
2163 int mlx5e_create_direct_rqts(struct mlx5e_priv
*priv
)
2165 struct mlx5e_rqt
*rqt
;
2169 for (ix
= 0; ix
< priv
->profile
->max_nch(priv
->mdev
); ix
++) {
2170 rqt
= &priv
->direct_tir
[ix
].rqt
;
2171 err
= mlx5e_create_rqt(priv
, 1 /*size */, rqt
);
2173 goto err_destroy_rqts
;
2179 mlx5_core_warn(priv
->mdev
, "create direct rqts failed, %d\n", err
);
2180 for (ix
--; ix
>= 0; ix
--)
2181 mlx5e_destroy_rqt(priv
, &priv
->direct_tir
[ix
].rqt
);
2186 void mlx5e_destroy_direct_rqts(struct mlx5e_priv
*priv
)
2190 for (i
= 0; i
< priv
->profile
->max_nch(priv
->mdev
); i
++)
2191 mlx5e_destroy_rqt(priv
, &priv
->direct_tir
[i
].rqt
);
2194 static int mlx5e_rx_hash_fn(int hfunc
)
2196 return (hfunc
== ETH_RSS_HASH_TOP
) ?
2197 MLX5_RX_HASH_FN_TOEPLITZ
:
2198 MLX5_RX_HASH_FN_INVERTED_XOR8
;
2201 static int mlx5e_bits_invert(unsigned long a
, int size
)
2206 for (i
= 0; i
< size
; i
++)
2207 inv
|= (test_bit(size
- i
- 1, &a
) ? 1 : 0) << i
;
2212 static void mlx5e_fill_rqt_rqns(struct mlx5e_priv
*priv
, int sz
,
2213 struct mlx5e_redirect_rqt_param rrp
, void *rqtc
)
2217 for (i
= 0; i
< sz
; i
++) {
2223 if (rrp
.rss
.hfunc
== ETH_RSS_HASH_XOR
)
2224 ix
= mlx5e_bits_invert(i
, ilog2(sz
));
2226 ix
= priv
->channels
.params
.indirection_rqt
[ix
];
2227 rqn
= rrp
.rss
.channels
->c
[ix
]->rq
.rqn
;
2231 MLX5_SET(rqtc
, rqtc
, rq_num
[i
], rqn
);
2235 int mlx5e_redirect_rqt(struct mlx5e_priv
*priv
, u32 rqtn
, int sz
,
2236 struct mlx5e_redirect_rqt_param rrp
)
2238 struct mlx5_core_dev
*mdev
= priv
->mdev
;
2244 inlen
= MLX5_ST_SZ_BYTES(modify_rqt_in
) + sizeof(u32
) * sz
;
2245 in
= kvzalloc(inlen
, GFP_KERNEL
);
2249 rqtc
= MLX5_ADDR_OF(modify_rqt_in
, in
, ctx
);
2251 MLX5_SET(rqtc
, rqtc
, rqt_actual_size
, sz
);
2252 MLX5_SET(modify_rqt_in
, in
, bitmask
.rqn_list
, 1);
2253 mlx5e_fill_rqt_rqns(priv
, sz
, rrp
, rqtc
);
2254 err
= mlx5_core_modify_rqt(mdev
, rqtn
, in
, inlen
);
2260 static u32
mlx5e_get_direct_rqn(struct mlx5e_priv
*priv
, int ix
,
2261 struct mlx5e_redirect_rqt_param rrp
)
2266 if (ix
>= rrp
.rss
.channels
->num
)
2267 return priv
->drop_rq
.rqn
;
2269 return rrp
.rss
.channels
->c
[ix
]->rq
.rqn
;
2272 static void mlx5e_redirect_rqts(struct mlx5e_priv
*priv
,
2273 struct mlx5e_redirect_rqt_param rrp
)
2278 if (priv
->indir_rqt
.enabled
) {
2280 rqtn
= priv
->indir_rqt
.rqtn
;
2281 mlx5e_redirect_rqt(priv
, rqtn
, MLX5E_INDIR_RQT_SIZE
, rrp
);
2284 for (ix
= 0; ix
< priv
->profile
->max_nch(priv
->mdev
); ix
++) {
2285 struct mlx5e_redirect_rqt_param direct_rrp
= {
2288 .rqn
= mlx5e_get_direct_rqn(priv
, ix
, rrp
)
2292 /* Direct RQ Tables */
2293 if (!priv
->direct_tir
[ix
].rqt
.enabled
)
2296 rqtn
= priv
->direct_tir
[ix
].rqt
.rqtn
;
2297 mlx5e_redirect_rqt(priv
, rqtn
, 1, direct_rrp
);
2301 static void mlx5e_redirect_rqts_to_channels(struct mlx5e_priv
*priv
,
2302 struct mlx5e_channels
*chs
)
2304 struct mlx5e_redirect_rqt_param rrp
= {
2309 .hfunc
= chs
->params
.rss_hfunc
,
2314 mlx5e_redirect_rqts(priv
, rrp
);
2317 static void mlx5e_redirect_rqts_to_drop(struct mlx5e_priv
*priv
)
2319 struct mlx5e_redirect_rqt_param drop_rrp
= {
2322 .rqn
= priv
->drop_rq
.rqn
,
2326 mlx5e_redirect_rqts(priv
, drop_rrp
);
2329 static void mlx5e_build_tir_ctx_lro(struct mlx5e_params
*params
, void *tirc
)
2331 if (!params
->lro_en
)
2334 #define ROUGH_MAX_L2_L3_HDR_SZ 256
2336 MLX5_SET(tirc
, tirc
, lro_enable_mask
,
2337 MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO
|
2338 MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO
);
2339 MLX5_SET(tirc
, tirc
, lro_max_ip_payload_size
,
2340 (params
->lro_wqe_sz
- ROUGH_MAX_L2_L3_HDR_SZ
) >> 8);
2341 MLX5_SET(tirc
, tirc
, lro_timeout_period_usecs
, params
->lro_timeout
);
2344 void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_params
*params
,
2345 enum mlx5e_traffic_types tt
,
2348 void *hfso
= MLX5_ADDR_OF(tirc
, tirc
, rx_hash_field_selector_outer
);
2350 #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
2351 MLX5_HASH_FIELD_SEL_DST_IP)
2353 #define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\
2354 MLX5_HASH_FIELD_SEL_DST_IP |\
2355 MLX5_HASH_FIELD_SEL_L4_SPORT |\
2356 MLX5_HASH_FIELD_SEL_L4_DPORT)
2358 #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\
2359 MLX5_HASH_FIELD_SEL_DST_IP |\
2360 MLX5_HASH_FIELD_SEL_IPSEC_SPI)
2362 MLX5_SET(tirc
, tirc
, rx_hash_fn
, mlx5e_rx_hash_fn(params
->rss_hfunc
));
2363 if (params
->rss_hfunc
== ETH_RSS_HASH_TOP
) {
2364 void *rss_key
= MLX5_ADDR_OF(tirc
, tirc
,
2365 rx_hash_toeplitz_key
);
2366 size_t len
= MLX5_FLD_SZ_BYTES(tirc
,
2367 rx_hash_toeplitz_key
);
2369 MLX5_SET(tirc
, tirc
, rx_hash_symmetric
, 1);
2370 memcpy(rss_key
, params
->toeplitz_hash_key
, len
);
2374 case MLX5E_TT_IPV4_TCP
:
2375 MLX5_SET(rx_hash_field_select
, hfso
, l3_prot_type
,
2376 MLX5_L3_PROT_TYPE_IPV4
);
2377 MLX5_SET(rx_hash_field_select
, hfso
, l4_prot_type
,
2378 MLX5_L4_PROT_TYPE_TCP
);
2379 MLX5_SET(rx_hash_field_select
, hfso
, selected_fields
,
2380 MLX5_HASH_IP_L4PORTS
);
2383 case MLX5E_TT_IPV6_TCP
:
2384 MLX5_SET(rx_hash_field_select
, hfso
, l3_prot_type
,
2385 MLX5_L3_PROT_TYPE_IPV6
);
2386 MLX5_SET(rx_hash_field_select
, hfso
, l4_prot_type
,
2387 MLX5_L4_PROT_TYPE_TCP
);
2388 MLX5_SET(rx_hash_field_select
, hfso
, selected_fields
,
2389 MLX5_HASH_IP_L4PORTS
);
2392 case MLX5E_TT_IPV4_UDP
:
2393 MLX5_SET(rx_hash_field_select
, hfso
, l3_prot_type
,
2394 MLX5_L3_PROT_TYPE_IPV4
);
2395 MLX5_SET(rx_hash_field_select
, hfso
, l4_prot_type
,
2396 MLX5_L4_PROT_TYPE_UDP
);
2397 MLX5_SET(rx_hash_field_select
, hfso
, selected_fields
,
2398 MLX5_HASH_IP_L4PORTS
);
2401 case MLX5E_TT_IPV6_UDP
:
2402 MLX5_SET(rx_hash_field_select
, hfso
, l3_prot_type
,
2403 MLX5_L3_PROT_TYPE_IPV6
);
2404 MLX5_SET(rx_hash_field_select
, hfso
, l4_prot_type
,
2405 MLX5_L4_PROT_TYPE_UDP
);
2406 MLX5_SET(rx_hash_field_select
, hfso
, selected_fields
,
2407 MLX5_HASH_IP_L4PORTS
);
2410 case MLX5E_TT_IPV4_IPSEC_AH
:
2411 MLX5_SET(rx_hash_field_select
, hfso
, l3_prot_type
,
2412 MLX5_L3_PROT_TYPE_IPV4
);
2413 MLX5_SET(rx_hash_field_select
, hfso
, selected_fields
,
2414 MLX5_HASH_IP_IPSEC_SPI
);
2417 case MLX5E_TT_IPV6_IPSEC_AH
:
2418 MLX5_SET(rx_hash_field_select
, hfso
, l3_prot_type
,
2419 MLX5_L3_PROT_TYPE_IPV6
);
2420 MLX5_SET(rx_hash_field_select
, hfso
, selected_fields
,
2421 MLX5_HASH_IP_IPSEC_SPI
);
2424 case MLX5E_TT_IPV4_IPSEC_ESP
:
2425 MLX5_SET(rx_hash_field_select
, hfso
, l3_prot_type
,
2426 MLX5_L3_PROT_TYPE_IPV4
);
2427 MLX5_SET(rx_hash_field_select
, hfso
, selected_fields
,
2428 MLX5_HASH_IP_IPSEC_SPI
);
2431 case MLX5E_TT_IPV6_IPSEC_ESP
:
2432 MLX5_SET(rx_hash_field_select
, hfso
, l3_prot_type
,
2433 MLX5_L3_PROT_TYPE_IPV6
);
2434 MLX5_SET(rx_hash_field_select
, hfso
, selected_fields
,
2435 MLX5_HASH_IP_IPSEC_SPI
);
2439 MLX5_SET(rx_hash_field_select
, hfso
, l3_prot_type
,
2440 MLX5_L3_PROT_TYPE_IPV4
);
2441 MLX5_SET(rx_hash_field_select
, hfso
, selected_fields
,
2446 MLX5_SET(rx_hash_field_select
, hfso
, l3_prot_type
,
2447 MLX5_L3_PROT_TYPE_IPV6
);
2448 MLX5_SET(rx_hash_field_select
, hfso
, selected_fields
,
2452 WARN_ONCE(true, "%s: bad traffic type!\n", __func__
);
2456 static int mlx5e_modify_tirs_lro(struct mlx5e_priv
*priv
)
2458 struct mlx5_core_dev
*mdev
= priv
->mdev
;
2467 inlen
= MLX5_ST_SZ_BYTES(modify_tir_in
);
2468 in
= kvzalloc(inlen
, GFP_KERNEL
);
2472 MLX5_SET(modify_tir_in
, in
, bitmask
.lro
, 1);
2473 tirc
= MLX5_ADDR_OF(modify_tir_in
, in
, ctx
);
2475 mlx5e_build_tir_ctx_lro(&priv
->channels
.params
, tirc
);
2477 for (tt
= 0; tt
< MLX5E_NUM_INDIR_TIRS
; tt
++) {
2478 err
= mlx5_core_modify_tir(mdev
, priv
->indir_tir
[tt
].tirn
, in
,
2484 for (ix
= 0; ix
< priv
->profile
->max_nch(priv
->mdev
); ix
++) {
2485 err
= mlx5_core_modify_tir(mdev
, priv
->direct_tir
[ix
].tirn
,
2497 static int mlx5e_set_mtu(struct mlx5e_priv
*priv
, u16 mtu
)
2499 struct mlx5_core_dev
*mdev
= priv
->mdev
;
2500 u16 hw_mtu
= MLX5E_SW2HW_MTU(priv
, mtu
);
2503 err
= mlx5_set_port_mtu(mdev
, hw_mtu
, 1);
2507 /* Update vport context MTU */
2508 mlx5_modify_nic_vport_mtu(mdev
, hw_mtu
);
2512 static void mlx5e_query_mtu(struct mlx5e_priv
*priv
, u16
*mtu
)
2514 struct mlx5_core_dev
*mdev
= priv
->mdev
;
2518 err
= mlx5_query_nic_vport_mtu(mdev
, &hw_mtu
);
2519 if (err
|| !hw_mtu
) /* fallback to port oper mtu */
2520 mlx5_query_port_oper_mtu(mdev
, &hw_mtu
, 1);
2522 *mtu
= MLX5E_HW2SW_MTU(priv
, hw_mtu
);
2525 static int mlx5e_set_dev_port_mtu(struct mlx5e_priv
*priv
)
2527 struct net_device
*netdev
= priv
->netdev
;
2531 err
= mlx5e_set_mtu(priv
, netdev
->mtu
);
2535 mlx5e_query_mtu(priv
, &mtu
);
2536 if (mtu
!= netdev
->mtu
)
2537 netdev_warn(netdev
, "%s: VPort MTU %d is different than netdev mtu %d\n",
2538 __func__
, mtu
, netdev
->mtu
);
2544 static void mlx5e_netdev_set_tcs(struct net_device
*netdev
)
2546 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
2547 int nch
= priv
->channels
.params
.num_channels
;
2548 int ntc
= priv
->channels
.params
.num_tc
;
2551 netdev_reset_tc(netdev
);
2556 netdev_set_num_tc(netdev
, ntc
);
2558 /* Map netdev TCs to offset 0
2559 * We have our own UP to TXQ mapping for QoS
2561 for (tc
= 0; tc
< ntc
; tc
++)
2562 netdev_set_tc_queue(netdev
, tc
, nch
, 0);
2565 static void mlx5e_build_channels_tx_maps(struct mlx5e_priv
*priv
)
2567 struct mlx5e_channel
*c
;
2568 struct mlx5e_txqsq
*sq
;
2571 for (i
= 0; i
< priv
->channels
.num
; i
++)
2572 for (tc
= 0; tc
< priv
->profile
->max_tc
; tc
++)
2573 priv
->channel_tc2txq
[i
][tc
] = i
+ tc
* priv
->channels
.num
;
2575 for (i
= 0; i
< priv
->channels
.num
; i
++) {
2576 c
= priv
->channels
.c
[i
];
2577 for (tc
= 0; tc
< c
->num_tc
; tc
++) {
2579 priv
->txq2sq
[sq
->txq_ix
] = sq
;
2584 static bool mlx5e_is_eswitch_vport_mngr(struct mlx5_core_dev
*mdev
)
2586 return (MLX5_CAP_GEN(mdev
, vport_group_manager
) &&
2587 MLX5_CAP_GEN(mdev
, port_type
) == MLX5_CAP_PORT_TYPE_ETH
);
2590 void mlx5e_activate_priv_channels(struct mlx5e_priv
*priv
)
2592 int num_txqs
= priv
->channels
.num
* priv
->channels
.params
.num_tc
;
2593 struct net_device
*netdev
= priv
->netdev
;
2595 mlx5e_netdev_set_tcs(netdev
);
2596 netif_set_real_num_tx_queues(netdev
, num_txqs
);
2597 netif_set_real_num_rx_queues(netdev
, priv
->channels
.num
);
2599 mlx5e_build_channels_tx_maps(priv
);
2600 mlx5e_activate_channels(&priv
->channels
);
2601 netif_tx_start_all_queues(priv
->netdev
);
2603 if (mlx5e_is_eswitch_vport_mngr(priv
->mdev
))
2604 mlx5e_add_sqs_fwd_rules(priv
);
2606 mlx5e_wait_channels_min_rx_wqes(&priv
->channels
);
2607 mlx5e_redirect_rqts_to_channels(priv
, &priv
->channels
);
2610 void mlx5e_deactivate_priv_channels(struct mlx5e_priv
*priv
)
2612 mlx5e_redirect_rqts_to_drop(priv
);
2614 if (mlx5e_is_eswitch_vport_mngr(priv
->mdev
))
2615 mlx5e_remove_sqs_fwd_rules(priv
);
2617 /* FIXME: This is a W/A only for tx timeout watch dog false alarm when
2618 * polling for inactive tx queues.
2620 netif_tx_stop_all_queues(priv
->netdev
);
2621 netif_tx_disable(priv
->netdev
);
2622 mlx5e_deactivate_channels(&priv
->channels
);
2625 void mlx5e_switch_priv_channels(struct mlx5e_priv
*priv
,
2626 struct mlx5e_channels
*new_chs
,
2627 mlx5e_fp_hw_modify hw_modify
)
2629 struct net_device
*netdev
= priv
->netdev
;
2632 new_num_txqs
= new_chs
->num
* new_chs
->params
.num_tc
;
2634 carrier_ok
= netif_carrier_ok(netdev
);
2635 netif_carrier_off(netdev
);
2637 if (new_num_txqs
< netdev
->real_num_tx_queues
)
2638 netif_set_real_num_tx_queues(netdev
, new_num_txqs
);
2640 mlx5e_deactivate_priv_channels(priv
);
2641 mlx5e_close_channels(&priv
->channels
);
2643 priv
->channels
= *new_chs
;
2645 /* New channels are ready to roll, modify HW settings if needed */
2649 mlx5e_refresh_tirs(priv
, false);
2650 mlx5e_activate_priv_channels(priv
);
2652 /* return carrier back if needed */
2654 netif_carrier_on(netdev
);
2657 int mlx5e_open_locked(struct net_device
*netdev
)
2659 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
2662 set_bit(MLX5E_STATE_OPENED
, &priv
->state
);
2664 err
= mlx5e_open_channels(priv
, &priv
->channels
);
2666 goto err_clear_state_opened_flag
;
2668 mlx5e_refresh_tirs(priv
, false);
2669 mlx5e_activate_priv_channels(priv
);
2670 if (priv
->profile
->update_carrier
)
2671 priv
->profile
->update_carrier(priv
);
2672 mlx5e_timestamp_init(priv
);
2674 if (priv
->profile
->update_stats
)
2675 queue_delayed_work(priv
->wq
, &priv
->update_stats_work
, 0);
2679 err_clear_state_opened_flag
:
2680 clear_bit(MLX5E_STATE_OPENED
, &priv
->state
);
2684 int mlx5e_open(struct net_device
*netdev
)
2686 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
2689 mutex_lock(&priv
->state_lock
);
2690 err
= mlx5e_open_locked(netdev
);
2691 mutex_unlock(&priv
->state_lock
);
2696 int mlx5e_close_locked(struct net_device
*netdev
)
2698 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
2700 /* May already be CLOSED in case a previous configuration operation
2701 * (e.g RX/TX queue size change) that involves close&open failed.
2703 if (!test_bit(MLX5E_STATE_OPENED
, &priv
->state
))
2706 clear_bit(MLX5E_STATE_OPENED
, &priv
->state
);
2708 mlx5e_timestamp_cleanup(priv
);
2709 netif_carrier_off(priv
->netdev
);
2710 mlx5e_deactivate_priv_channels(priv
);
2711 mlx5e_close_channels(&priv
->channels
);
2716 int mlx5e_close(struct net_device
*netdev
)
2718 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
2721 if (!netif_device_present(netdev
))
2724 mutex_lock(&priv
->state_lock
);
2725 err
= mlx5e_close_locked(netdev
);
2726 mutex_unlock(&priv
->state_lock
);
2731 static int mlx5e_alloc_drop_rq(struct mlx5_core_dev
*mdev
,
2732 struct mlx5e_rq
*rq
,
2733 struct mlx5e_rq_param
*param
)
2735 void *rqc
= param
->rqc
;
2736 void *rqc_wq
= MLX5_ADDR_OF(rqc
, rqc
, wq
);
2739 param
->wq
.db_numa_node
= param
->wq
.buf_numa_node
;
2741 err
= mlx5_wq_ll_create(mdev
, ¶m
->wq
, rqc_wq
, &rq
->wq
,
2751 static int mlx5e_alloc_drop_cq(struct mlx5_core_dev
*mdev
,
2752 struct mlx5e_cq
*cq
,
2753 struct mlx5e_cq_param
*param
)
2755 return mlx5e_alloc_cq_common(mdev
, param
, cq
);
2758 static int mlx5e_open_drop_rq(struct mlx5_core_dev
*mdev
,
2759 struct mlx5e_rq
*drop_rq
)
2761 struct mlx5e_cq_param cq_param
= {};
2762 struct mlx5e_rq_param rq_param
= {};
2763 struct mlx5e_cq
*cq
= &drop_rq
->cq
;
2766 mlx5e_build_drop_rq_param(&rq_param
);
2768 err
= mlx5e_alloc_drop_cq(mdev
, cq
, &cq_param
);
2772 err
= mlx5e_create_cq(cq
, &cq_param
);
2776 err
= mlx5e_alloc_drop_rq(mdev
, drop_rq
, &rq_param
);
2778 goto err_destroy_cq
;
2780 err
= mlx5e_create_rq(drop_rq
, &rq_param
);
2787 mlx5e_free_rq(drop_rq
);
2790 mlx5e_destroy_cq(cq
);
2798 static void mlx5e_close_drop_rq(struct mlx5e_rq
*drop_rq
)
2800 mlx5e_destroy_rq(drop_rq
);
2801 mlx5e_free_rq(drop_rq
);
2802 mlx5e_destroy_cq(&drop_rq
->cq
);
2803 mlx5e_free_cq(&drop_rq
->cq
);
2806 int mlx5e_create_tis(struct mlx5_core_dev
*mdev
, int tc
,
2807 u32 underlay_qpn
, u32
*tisn
)
2809 u32 in
[MLX5_ST_SZ_DW(create_tis_in
)] = {0};
2810 void *tisc
= MLX5_ADDR_OF(create_tis_in
, in
, ctx
);
2812 MLX5_SET(tisc
, tisc
, prio
, tc
<< 1);
2813 MLX5_SET(tisc
, tisc
, underlay_qpn
, underlay_qpn
);
2814 MLX5_SET(tisc
, tisc
, transport_domain
, mdev
->mlx5e_res
.td
.tdn
);
2816 if (mlx5_lag_is_lacp_owner(mdev
))
2817 MLX5_SET(tisc
, tisc
, strict_lag_tx_port_affinity
, 1);
2819 return mlx5_core_create_tis(mdev
, in
, sizeof(in
), tisn
);
2822 void mlx5e_destroy_tis(struct mlx5_core_dev
*mdev
, u32 tisn
)
2824 mlx5_core_destroy_tis(mdev
, tisn
);
2827 int mlx5e_create_tises(struct mlx5e_priv
*priv
)
2832 for (tc
= 0; tc
< priv
->profile
->max_tc
; tc
++) {
2833 err
= mlx5e_create_tis(priv
->mdev
, tc
, 0, &priv
->tisn
[tc
]);
2835 goto err_close_tises
;
2841 for (tc
--; tc
>= 0; tc
--)
2842 mlx5e_destroy_tis(priv
->mdev
, priv
->tisn
[tc
]);
2847 void mlx5e_cleanup_nic_tx(struct mlx5e_priv
*priv
)
2851 for (tc
= 0; tc
< priv
->profile
->max_tc
; tc
++)
2852 mlx5e_destroy_tis(priv
->mdev
, priv
->tisn
[tc
]);
2855 static void mlx5e_build_indir_tir_ctx(struct mlx5e_priv
*priv
,
2856 enum mlx5e_traffic_types tt
,
2859 MLX5_SET(tirc
, tirc
, transport_domain
, priv
->mdev
->mlx5e_res
.td
.tdn
);
2861 mlx5e_build_tir_ctx_lro(&priv
->channels
.params
, tirc
);
2863 MLX5_SET(tirc
, tirc
, disp_type
, MLX5_TIRC_DISP_TYPE_INDIRECT
);
2864 MLX5_SET(tirc
, tirc
, indirect_table
, priv
->indir_rqt
.rqtn
);
2865 mlx5e_build_indir_tir_ctx_hash(&priv
->channels
.params
, tt
, tirc
);
2868 static void mlx5e_build_direct_tir_ctx(struct mlx5e_priv
*priv
, u32 rqtn
, u32
*tirc
)
2870 MLX5_SET(tirc
, tirc
, transport_domain
, priv
->mdev
->mlx5e_res
.td
.tdn
);
2872 mlx5e_build_tir_ctx_lro(&priv
->channels
.params
, tirc
);
2874 MLX5_SET(tirc
, tirc
, disp_type
, MLX5_TIRC_DISP_TYPE_INDIRECT
);
2875 MLX5_SET(tirc
, tirc
, indirect_table
, rqtn
);
2876 MLX5_SET(tirc
, tirc
, rx_hash_fn
, MLX5_RX_HASH_FN_INVERTED_XOR8
);
2879 int mlx5e_create_indirect_tirs(struct mlx5e_priv
*priv
)
2881 struct mlx5e_tir
*tir
;
2888 inlen
= MLX5_ST_SZ_BYTES(create_tir_in
);
2889 in
= kvzalloc(inlen
, GFP_KERNEL
);
2893 for (tt
= 0; tt
< MLX5E_NUM_INDIR_TIRS
; tt
++) {
2894 memset(in
, 0, inlen
);
2895 tir
= &priv
->indir_tir
[tt
];
2896 tirc
= MLX5_ADDR_OF(create_tir_in
, in
, ctx
);
2897 mlx5e_build_indir_tir_ctx(priv
, tt
, tirc
);
2898 err
= mlx5e_create_tir(priv
->mdev
, tir
, in
, inlen
);
2900 goto err_destroy_tirs
;
2908 mlx5_core_warn(priv
->mdev
, "create indirect tirs failed, %d\n", err
);
2909 for (tt
--; tt
>= 0; tt
--)
2910 mlx5e_destroy_tir(priv
->mdev
, &priv
->indir_tir
[tt
]);
2917 int mlx5e_create_direct_tirs(struct mlx5e_priv
*priv
)
2919 int nch
= priv
->profile
->max_nch(priv
->mdev
);
2920 struct mlx5e_tir
*tir
;
2927 inlen
= MLX5_ST_SZ_BYTES(create_tir_in
);
2928 in
= kvzalloc(inlen
, GFP_KERNEL
);
2932 for (ix
= 0; ix
< nch
; ix
++) {
2933 memset(in
, 0, inlen
);
2934 tir
= &priv
->direct_tir
[ix
];
2935 tirc
= MLX5_ADDR_OF(create_tir_in
, in
, ctx
);
2936 mlx5e_build_direct_tir_ctx(priv
, priv
->direct_tir
[ix
].rqt
.rqtn
, tirc
);
2937 err
= mlx5e_create_tir(priv
->mdev
, tir
, in
, inlen
);
2939 goto err_destroy_ch_tirs
;
2946 err_destroy_ch_tirs
:
2947 mlx5_core_warn(priv
->mdev
, "create direct tirs failed, %d\n", err
);
2948 for (ix
--; ix
>= 0; ix
--)
2949 mlx5e_destroy_tir(priv
->mdev
, &priv
->direct_tir
[ix
]);
2956 void mlx5e_destroy_indirect_tirs(struct mlx5e_priv
*priv
)
2960 for (i
= 0; i
< MLX5E_NUM_INDIR_TIRS
; i
++)
2961 mlx5e_destroy_tir(priv
->mdev
, &priv
->indir_tir
[i
]);
2964 void mlx5e_destroy_direct_tirs(struct mlx5e_priv
*priv
)
2966 int nch
= priv
->profile
->max_nch(priv
->mdev
);
2969 for (i
= 0; i
< nch
; i
++)
2970 mlx5e_destroy_tir(priv
->mdev
, &priv
->direct_tir
[i
]);
2973 static int mlx5e_modify_channels_scatter_fcs(struct mlx5e_channels
*chs
, bool enable
)
2978 for (i
= 0; i
< chs
->num
; i
++) {
2979 err
= mlx5e_modify_rq_scatter_fcs(&chs
->c
[i
]->rq
, enable
);
2987 static int mlx5e_modify_channels_vsd(struct mlx5e_channels
*chs
, bool vsd
)
2992 for (i
= 0; i
< chs
->num
; i
++) {
2993 err
= mlx5e_modify_rq_vsd(&chs
->c
[i
]->rq
, vsd
);
3001 static int mlx5e_setup_tc(struct net_device
*netdev
, u8 tc
)
3003 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3004 struct mlx5e_channels new_channels
= {};
3007 if (tc
&& tc
!= MLX5E_MAX_NUM_TC
)
3010 mutex_lock(&priv
->state_lock
);
3012 new_channels
.params
= priv
->channels
.params
;
3013 new_channels
.params
.num_tc
= tc
? tc
: 1;
3015 if (!test_bit(MLX5E_STATE_OPENED
, &priv
->state
)) {
3016 priv
->channels
.params
= new_channels
.params
;
3020 err
= mlx5e_open_channels(priv
, &new_channels
);
3024 mlx5e_switch_priv_channels(priv
, &new_channels
, NULL
);
3026 mutex_unlock(&priv
->state_lock
);
3030 static int mlx5e_ndo_setup_tc(struct net_device
*dev
, u32 handle
,
3031 u32 chain_index
, __be16 proto
,
3032 struct tc_to_netdev
*tc
)
3034 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3036 if (TC_H_MAJ(handle
) != TC_H_MAJ(TC_H_INGRESS
))
3043 case TC_SETUP_CLSFLOWER
:
3044 switch (tc
->cls_flower
->command
) {
3045 case TC_CLSFLOWER_REPLACE
:
3046 return mlx5e_configure_flower(priv
, proto
, tc
->cls_flower
);
3047 case TC_CLSFLOWER_DESTROY
:
3048 return mlx5e_delete_flower(priv
, tc
->cls_flower
);
3049 case TC_CLSFLOWER_STATS
:
3050 return mlx5e_stats_flower(priv
, tc
->cls_flower
);
3057 if (tc
->type
!= TC_SETUP_MQPRIO
)
3060 tc
->mqprio
->hw
= TC_MQPRIO_HW_OFFLOAD_TCS
;
3062 return mlx5e_setup_tc(dev
, tc
->mqprio
->num_tc
);
3066 mlx5e_get_stats(struct net_device
*dev
, struct rtnl_link_stats64
*stats
)
3068 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3069 struct mlx5e_sw_stats
*sstats
= &priv
->stats
.sw
;
3070 struct mlx5e_vport_stats
*vstats
= &priv
->stats
.vport
;
3071 struct mlx5e_pport_stats
*pstats
= &priv
->stats
.pport
;
3073 if (mlx5e_is_uplink_rep(priv
)) {
3074 stats
->rx_packets
= PPORT_802_3_GET(pstats
, a_frames_received_ok
);
3075 stats
->rx_bytes
= PPORT_802_3_GET(pstats
, a_octets_received_ok
);
3076 stats
->tx_packets
= PPORT_802_3_GET(pstats
, a_frames_transmitted_ok
);
3077 stats
->tx_bytes
= PPORT_802_3_GET(pstats
, a_octets_transmitted_ok
);
3079 stats
->rx_packets
= sstats
->rx_packets
;
3080 stats
->rx_bytes
= sstats
->rx_bytes
;
3081 stats
->tx_packets
= sstats
->tx_packets
;
3082 stats
->tx_bytes
= sstats
->tx_bytes
;
3083 stats
->tx_dropped
= sstats
->tx_queue_dropped
;
3086 stats
->rx_dropped
= priv
->stats
.qcnt
.rx_out_of_buffer
;
3088 stats
->rx_length_errors
=
3089 PPORT_802_3_GET(pstats
, a_in_range_length_errors
) +
3090 PPORT_802_3_GET(pstats
, a_out_of_range_length_field
) +
3091 PPORT_802_3_GET(pstats
, a_frame_too_long_errors
);
3092 stats
->rx_crc_errors
=
3093 PPORT_802_3_GET(pstats
, a_frame_check_sequence_errors
);
3094 stats
->rx_frame_errors
= PPORT_802_3_GET(pstats
, a_alignment_errors
);
3095 stats
->tx_aborted_errors
= PPORT_2863_GET(pstats
, if_out_discards
);
3096 stats
->rx_errors
= stats
->rx_length_errors
+ stats
->rx_crc_errors
+
3097 stats
->rx_frame_errors
;
3098 stats
->tx_errors
= stats
->tx_aborted_errors
+ stats
->tx_carrier_errors
;
3100 /* vport multicast also counts packets that are dropped due to steering
3101 * or rx out of buffer
3104 VPORT_COUNTER_GET(vstats
, received_eth_multicast
.packets
);
3107 static void mlx5e_set_rx_mode(struct net_device
*dev
)
3109 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3111 queue_work(priv
->wq
, &priv
->set_rx_mode_work
);
3114 static int mlx5e_set_mac(struct net_device
*netdev
, void *addr
)
3116 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3117 struct sockaddr
*saddr
= addr
;
3119 if (!is_valid_ether_addr(saddr
->sa_data
))
3120 return -EADDRNOTAVAIL
;
3122 netif_addr_lock_bh(netdev
);
3123 ether_addr_copy(netdev
->dev_addr
, saddr
->sa_data
);
3124 netif_addr_unlock_bh(netdev
);
3126 queue_work(priv
->wq
, &priv
->set_rx_mode_work
);
3131 #define MLX5E_SET_FEATURE(netdev, feature, enable) \
3134 netdev->features |= feature; \
3136 netdev->features &= ~feature; \
3139 typedef int (*mlx5e_feature_handler
)(struct net_device
*netdev
, bool enable
);
3141 static int set_feature_lro(struct net_device
*netdev
, bool enable
)
3143 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3144 struct mlx5e_channels new_channels
= {};
3148 mutex_lock(&priv
->state_lock
);
3150 reset
= (priv
->channels
.params
.rq_wq_type
== MLX5_WQ_TYPE_LINKED_LIST
);
3151 reset
= reset
&& test_bit(MLX5E_STATE_OPENED
, &priv
->state
);
3153 new_channels
.params
= priv
->channels
.params
;
3154 new_channels
.params
.lro_en
= enable
;
3157 priv
->channels
.params
= new_channels
.params
;
3158 err
= mlx5e_modify_tirs_lro(priv
);
3162 err
= mlx5e_open_channels(priv
, &new_channels
);
3166 mlx5e_switch_priv_channels(priv
, &new_channels
, mlx5e_modify_tirs_lro
);
3168 mutex_unlock(&priv
->state_lock
);
3172 static int set_feature_vlan_filter(struct net_device
*netdev
, bool enable
)
3174 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3177 mlx5e_enable_vlan_filter(priv
);
3179 mlx5e_disable_vlan_filter(priv
);
3184 static int set_feature_tc_num_filters(struct net_device
*netdev
, bool enable
)
3186 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3188 if (!enable
&& mlx5e_tc_num_filters(priv
)) {
3190 "Active offloaded tc filters, can't turn hw_tc_offload off\n");
3197 static int set_feature_rx_all(struct net_device
*netdev
, bool enable
)
3199 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3200 struct mlx5_core_dev
*mdev
= priv
->mdev
;
3202 return mlx5_set_port_fcs(mdev
, !enable
);
3205 static int set_feature_rx_fcs(struct net_device
*netdev
, bool enable
)
3207 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3210 mutex_lock(&priv
->state_lock
);
3212 priv
->channels
.params
.scatter_fcs_en
= enable
;
3213 err
= mlx5e_modify_channels_scatter_fcs(&priv
->channels
, enable
);
3215 priv
->channels
.params
.scatter_fcs_en
= !enable
;
3217 mutex_unlock(&priv
->state_lock
);
3222 static int set_feature_rx_vlan(struct net_device
*netdev
, bool enable
)
3224 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3227 mutex_lock(&priv
->state_lock
);
3229 priv
->channels
.params
.vlan_strip_disable
= !enable
;
3230 if (!test_bit(MLX5E_STATE_OPENED
, &priv
->state
))
3233 err
= mlx5e_modify_channels_vsd(&priv
->channels
, !enable
);
3235 priv
->channels
.params
.vlan_strip_disable
= enable
;
3238 mutex_unlock(&priv
->state_lock
);
3243 #ifdef CONFIG_RFS_ACCEL
3244 static int set_feature_arfs(struct net_device
*netdev
, bool enable
)
3246 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3250 err
= mlx5e_arfs_enable(priv
);
3252 err
= mlx5e_arfs_disable(priv
);
3258 static int mlx5e_handle_feature(struct net_device
*netdev
,
3259 netdev_features_t wanted_features
,
3260 netdev_features_t feature
,
3261 mlx5e_feature_handler feature_handler
)
3263 netdev_features_t changes
= wanted_features
^ netdev
->features
;
3264 bool enable
= !!(wanted_features
& feature
);
3267 if (!(changes
& feature
))
3270 err
= feature_handler(netdev
, enable
);
3272 netdev_err(netdev
, "%s feature 0x%llx failed err %d\n",
3273 enable
? "Enable" : "Disable", feature
, err
);
3277 MLX5E_SET_FEATURE(netdev
, feature
, enable
);
3281 static int mlx5e_set_features(struct net_device
*netdev
,
3282 netdev_features_t features
)
3286 err
= mlx5e_handle_feature(netdev
, features
, NETIF_F_LRO
,
3288 err
|= mlx5e_handle_feature(netdev
, features
,
3289 NETIF_F_HW_VLAN_CTAG_FILTER
,
3290 set_feature_vlan_filter
);
3291 err
|= mlx5e_handle_feature(netdev
, features
, NETIF_F_HW_TC
,
3292 set_feature_tc_num_filters
);
3293 err
|= mlx5e_handle_feature(netdev
, features
, NETIF_F_RXALL
,
3294 set_feature_rx_all
);
3295 err
|= mlx5e_handle_feature(netdev
, features
, NETIF_F_RXFCS
,
3296 set_feature_rx_fcs
);
3297 err
|= mlx5e_handle_feature(netdev
, features
, NETIF_F_HW_VLAN_CTAG_RX
,
3298 set_feature_rx_vlan
);
3299 #ifdef CONFIG_RFS_ACCEL
3300 err
|= mlx5e_handle_feature(netdev
, features
, NETIF_F_NTUPLE
,
3304 return err
? -EINVAL
: 0;
3307 static int mlx5e_change_mtu(struct net_device
*netdev
, int new_mtu
)
3309 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3310 struct mlx5e_channels new_channels
= {};
3315 mutex_lock(&priv
->state_lock
);
3317 reset
= !priv
->channels
.params
.lro_en
&&
3318 (priv
->channels
.params
.rq_wq_type
!=
3319 MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ
);
3321 reset
= reset
&& test_bit(MLX5E_STATE_OPENED
, &priv
->state
);
3323 curr_mtu
= netdev
->mtu
;
3324 netdev
->mtu
= new_mtu
;
3327 mlx5e_set_dev_port_mtu(priv
);
3331 new_channels
.params
= priv
->channels
.params
;
3332 err
= mlx5e_open_channels(priv
, &new_channels
);
3334 netdev
->mtu
= curr_mtu
;
3338 mlx5e_switch_priv_channels(priv
, &new_channels
, mlx5e_set_dev_port_mtu
);
3341 mutex_unlock(&priv
->state_lock
);
3345 static int mlx5e_ioctl(struct net_device
*dev
, struct ifreq
*ifr
, int cmd
)
3347 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3351 return mlx5e_hwstamp_set(priv
, ifr
);
3353 return mlx5e_hwstamp_get(priv
, ifr
);
3359 static int mlx5e_set_vf_mac(struct net_device
*dev
, int vf
, u8
*mac
)
3361 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3362 struct mlx5_core_dev
*mdev
= priv
->mdev
;
3364 return mlx5_eswitch_set_vport_mac(mdev
->priv
.eswitch
, vf
+ 1, mac
);
3367 static int mlx5e_set_vf_vlan(struct net_device
*dev
, int vf
, u16 vlan
, u8 qos
,
3370 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3371 struct mlx5_core_dev
*mdev
= priv
->mdev
;
3373 if (vlan_proto
!= htons(ETH_P_8021Q
))
3374 return -EPROTONOSUPPORT
;
3376 return mlx5_eswitch_set_vport_vlan(mdev
->priv
.eswitch
, vf
+ 1,
3380 static int mlx5e_set_vf_spoofchk(struct net_device
*dev
, int vf
, bool setting
)
3382 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3383 struct mlx5_core_dev
*mdev
= priv
->mdev
;
3385 return mlx5_eswitch_set_vport_spoofchk(mdev
->priv
.eswitch
, vf
+ 1, setting
);
3388 static int mlx5e_set_vf_trust(struct net_device
*dev
, int vf
, bool setting
)
3390 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3391 struct mlx5_core_dev
*mdev
= priv
->mdev
;
3393 return mlx5_eswitch_set_vport_trust(mdev
->priv
.eswitch
, vf
+ 1, setting
);
3396 static int mlx5e_set_vf_rate(struct net_device
*dev
, int vf
, int min_tx_rate
,
3399 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3400 struct mlx5_core_dev
*mdev
= priv
->mdev
;
3402 return mlx5_eswitch_set_vport_rate(mdev
->priv
.eswitch
, vf
+ 1,
3403 max_tx_rate
, min_tx_rate
);
3406 static int mlx5_vport_link2ifla(u8 esw_link
)
3409 case MLX5_ESW_VPORT_ADMIN_STATE_DOWN
:
3410 return IFLA_VF_LINK_STATE_DISABLE
;
3411 case MLX5_ESW_VPORT_ADMIN_STATE_UP
:
3412 return IFLA_VF_LINK_STATE_ENABLE
;
3414 return IFLA_VF_LINK_STATE_AUTO
;
3417 static int mlx5_ifla_link2vport(u8 ifla_link
)
3419 switch (ifla_link
) {
3420 case IFLA_VF_LINK_STATE_DISABLE
:
3421 return MLX5_ESW_VPORT_ADMIN_STATE_DOWN
;
3422 case IFLA_VF_LINK_STATE_ENABLE
:
3423 return MLX5_ESW_VPORT_ADMIN_STATE_UP
;
3425 return MLX5_ESW_VPORT_ADMIN_STATE_AUTO
;
3428 static int mlx5e_set_vf_link_state(struct net_device
*dev
, int vf
,
3431 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3432 struct mlx5_core_dev
*mdev
= priv
->mdev
;
3434 return mlx5_eswitch_set_vport_state(mdev
->priv
.eswitch
, vf
+ 1,
3435 mlx5_ifla_link2vport(link_state
));
3438 static int mlx5e_get_vf_config(struct net_device
*dev
,
3439 int vf
, struct ifla_vf_info
*ivi
)
3441 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3442 struct mlx5_core_dev
*mdev
= priv
->mdev
;
3445 err
= mlx5_eswitch_get_vport_config(mdev
->priv
.eswitch
, vf
+ 1, ivi
);
3448 ivi
->linkstate
= mlx5_vport_link2ifla(ivi
->linkstate
);
3452 static int mlx5e_get_vf_stats(struct net_device
*dev
,
3453 int vf
, struct ifla_vf_stats
*vf_stats
)
3455 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3456 struct mlx5_core_dev
*mdev
= priv
->mdev
;
3458 return mlx5_eswitch_get_vport_stats(mdev
->priv
.eswitch
, vf
+ 1,
3462 static void mlx5e_add_vxlan_port(struct net_device
*netdev
,
3463 struct udp_tunnel_info
*ti
)
3465 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3467 if (ti
->type
!= UDP_TUNNEL_TYPE_VXLAN
)
3470 if (!mlx5e_vxlan_allowed(priv
->mdev
))
3473 mlx5e_vxlan_queue_work(priv
, ti
->sa_family
, be16_to_cpu(ti
->port
), 1);
3476 static void mlx5e_del_vxlan_port(struct net_device
*netdev
,
3477 struct udp_tunnel_info
*ti
)
3479 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3481 if (ti
->type
!= UDP_TUNNEL_TYPE_VXLAN
)
3484 if (!mlx5e_vxlan_allowed(priv
->mdev
))
3487 mlx5e_vxlan_queue_work(priv
, ti
->sa_family
, be16_to_cpu(ti
->port
), 0);
3490 static netdev_features_t
mlx5e_vxlan_features_check(struct mlx5e_priv
*priv
,
3491 struct sk_buff
*skb
,
3492 netdev_features_t features
)
3494 struct udphdr
*udph
;
3498 switch (vlan_get_protocol(skb
)) {
3499 case htons(ETH_P_IP
):
3500 proto
= ip_hdr(skb
)->protocol
;
3502 case htons(ETH_P_IPV6
):
3503 proto
= ipv6_hdr(skb
)->nexthdr
;
3509 if (proto
== IPPROTO_UDP
) {
3510 udph
= udp_hdr(skb
);
3511 port
= be16_to_cpu(udph
->dest
);
3514 /* Verify if UDP port is being offloaded by HW */
3515 if (port
&& mlx5e_vxlan_lookup_port(priv
, port
))
3519 /* Disable CSUM and GSO if the udp dport is not offloaded by HW */
3520 return features
& ~(NETIF_F_CSUM_MASK
| NETIF_F_GSO_MASK
);
3523 static netdev_features_t
mlx5e_features_check(struct sk_buff
*skb
,
3524 struct net_device
*netdev
,
3525 netdev_features_t features
)
3527 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3529 features
= vlan_features_check(skb
, features
);
3530 features
= vxlan_features_check(skb
, features
);
3532 #ifdef CONFIG_MLX5_EN_IPSEC
3533 if (mlx5e_ipsec_feature_check(skb
, netdev
, features
))
3537 /* Validate if the tunneled packet is being offloaded by HW */
3538 if (skb
->encapsulation
&&
3539 (features
& NETIF_F_CSUM_MASK
|| features
& NETIF_F_GSO_MASK
))
3540 return mlx5e_vxlan_features_check(priv
, skb
, features
);
3545 static void mlx5e_tx_timeout(struct net_device
*dev
)
3547 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3548 bool sched_work
= false;
3551 netdev_err(dev
, "TX timeout detected\n");
3553 for (i
= 0; i
< priv
->channels
.num
* priv
->channels
.params
.num_tc
; i
++) {
3554 struct mlx5e_txqsq
*sq
= priv
->txq2sq
[i
];
3556 if (!netif_xmit_stopped(netdev_get_tx_queue(dev
, i
)))
3559 clear_bit(MLX5E_SQ_STATE_ENABLED
, &sq
->state
);
3560 netdev_err(dev
, "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x\n",
3561 i
, sq
->sqn
, sq
->cq
.mcq
.cqn
, sq
->cc
, sq
->pc
);
3564 if (sched_work
&& test_bit(MLX5E_STATE_OPENED
, &priv
->state
))
3565 schedule_work(&priv
->tx_timeout_work
);
3568 static int mlx5e_xdp_set(struct net_device
*netdev
, struct bpf_prog
*prog
)
3570 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3571 struct bpf_prog
*old_prog
;
3573 bool reset
, was_opened
;
3576 mutex_lock(&priv
->state_lock
);
3578 if ((netdev
->features
& NETIF_F_LRO
) && prog
) {
3579 netdev_warn(netdev
, "can't set XDP while LRO is on, disable LRO first\n");
3584 if ((netdev
->features
& NETIF_F_HW_ESP
) && prog
) {
3585 netdev_warn(netdev
, "can't set XDP with IPSec offload\n");
3590 was_opened
= test_bit(MLX5E_STATE_OPENED
, &priv
->state
);
3591 /* no need for full reset when exchanging programs */
3592 reset
= (!priv
->channels
.params
.xdp_prog
|| !prog
);
3594 if (was_opened
&& reset
)
3595 mlx5e_close_locked(netdev
);
3596 if (was_opened
&& !reset
) {
3597 /* num_channels is invariant here, so we can take the
3598 * batched reference right upfront.
3600 prog
= bpf_prog_add(prog
, priv
->channels
.num
);
3602 err
= PTR_ERR(prog
);
3607 /* exchange programs, extra prog reference we got from caller
3608 * as long as we don't fail from this point onwards.
3610 old_prog
= xchg(&priv
->channels
.params
.xdp_prog
, prog
);
3612 bpf_prog_put(old_prog
);
3614 if (reset
) /* change RQ type according to priv->xdp_prog */
3615 mlx5e_set_rq_params(priv
->mdev
, &priv
->channels
.params
);
3617 if (was_opened
&& reset
)
3618 mlx5e_open_locked(netdev
);
3620 if (!test_bit(MLX5E_STATE_OPENED
, &priv
->state
) || reset
)
3623 /* exchanging programs w/o reset, we update ref counts on behalf
3624 * of the channels RQs here.
3626 for (i
= 0; i
< priv
->channels
.num
; i
++) {
3627 struct mlx5e_channel
*c
= priv
->channels
.c
[i
];
3629 clear_bit(MLX5E_RQ_STATE_ENABLED
, &c
->rq
.state
);
3630 napi_synchronize(&c
->napi
);
3631 /* prevent mlx5e_poll_rx_cq from accessing rq->xdp_prog */
3633 old_prog
= xchg(&c
->rq
.xdp_prog
, prog
);
3635 set_bit(MLX5E_RQ_STATE_ENABLED
, &c
->rq
.state
);
3636 /* napi_schedule in case we have missed anything */
3637 set_bit(MLX5E_CHANNEL_NAPI_SCHED
, &c
->flags
);
3638 napi_schedule(&c
->napi
);
3641 bpf_prog_put(old_prog
);
3645 mutex_unlock(&priv
->state_lock
);
3649 static u32
mlx5e_xdp_query(struct net_device
*dev
)
3651 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3652 const struct bpf_prog
*xdp_prog
;
3655 mutex_lock(&priv
->state_lock
);
3656 xdp_prog
= priv
->channels
.params
.xdp_prog
;
3658 prog_id
= xdp_prog
->aux
->id
;
3659 mutex_unlock(&priv
->state_lock
);
3664 static int mlx5e_xdp(struct net_device
*dev
, struct netdev_xdp
*xdp
)
3666 switch (xdp
->command
) {
3667 case XDP_SETUP_PROG
:
3668 return mlx5e_xdp_set(dev
, xdp
->prog
);
3669 case XDP_QUERY_PROG
:
3670 xdp
->prog_id
= mlx5e_xdp_query(dev
);
3671 xdp
->prog_attached
= !!xdp
->prog_id
;
3678 #ifdef CONFIG_NET_POLL_CONTROLLER
3679 /* Fake "interrupt" called by netpoll (eg netconsole) to send skbs without
3680 * reenabling interrupts.
3682 static void mlx5e_netpoll(struct net_device
*dev
)
3684 struct mlx5e_priv
*priv
= netdev_priv(dev
);
3685 struct mlx5e_channels
*chs
= &priv
->channels
;
3689 for (i
= 0; i
< chs
->num
; i
++)
3690 napi_schedule(&chs
->c
[i
]->napi
);
3694 static const struct net_device_ops mlx5e_netdev_ops_basic
= {
3695 .ndo_open
= mlx5e_open
,
3696 .ndo_stop
= mlx5e_close
,
3697 .ndo_start_xmit
= mlx5e_xmit
,
3698 .ndo_setup_tc
= mlx5e_ndo_setup_tc
,
3699 .ndo_select_queue
= mlx5e_select_queue
,
3700 .ndo_get_stats64
= mlx5e_get_stats
,
3701 .ndo_set_rx_mode
= mlx5e_set_rx_mode
,
3702 .ndo_set_mac_address
= mlx5e_set_mac
,
3703 .ndo_vlan_rx_add_vid
= mlx5e_vlan_rx_add_vid
,
3704 .ndo_vlan_rx_kill_vid
= mlx5e_vlan_rx_kill_vid
,
3705 .ndo_set_features
= mlx5e_set_features
,
3706 .ndo_change_mtu
= mlx5e_change_mtu
,
3707 .ndo_do_ioctl
= mlx5e_ioctl
,
3708 .ndo_set_tx_maxrate
= mlx5e_set_tx_maxrate
,
3709 #ifdef CONFIG_RFS_ACCEL
3710 .ndo_rx_flow_steer
= mlx5e_rx_flow_steer
,
3712 .ndo_tx_timeout
= mlx5e_tx_timeout
,
3713 .ndo_xdp
= mlx5e_xdp
,
3714 #ifdef CONFIG_NET_POLL_CONTROLLER
3715 .ndo_poll_controller
= mlx5e_netpoll
,
3719 static const struct net_device_ops mlx5e_netdev_ops_sriov
= {
3720 .ndo_open
= mlx5e_open
,
3721 .ndo_stop
= mlx5e_close
,
3722 .ndo_start_xmit
= mlx5e_xmit
,
3723 .ndo_setup_tc
= mlx5e_ndo_setup_tc
,
3724 .ndo_select_queue
= mlx5e_select_queue
,
3725 .ndo_get_stats64
= mlx5e_get_stats
,
3726 .ndo_set_rx_mode
= mlx5e_set_rx_mode
,
3727 .ndo_set_mac_address
= mlx5e_set_mac
,
3728 .ndo_vlan_rx_add_vid
= mlx5e_vlan_rx_add_vid
,
3729 .ndo_vlan_rx_kill_vid
= mlx5e_vlan_rx_kill_vid
,
3730 .ndo_set_features
= mlx5e_set_features
,
3731 .ndo_change_mtu
= mlx5e_change_mtu
,
3732 .ndo_do_ioctl
= mlx5e_ioctl
,
3733 .ndo_udp_tunnel_add
= mlx5e_add_vxlan_port
,
3734 .ndo_udp_tunnel_del
= mlx5e_del_vxlan_port
,
3735 .ndo_set_tx_maxrate
= mlx5e_set_tx_maxrate
,
3736 .ndo_features_check
= mlx5e_features_check
,
3737 #ifdef CONFIG_RFS_ACCEL
3738 .ndo_rx_flow_steer
= mlx5e_rx_flow_steer
,
3740 .ndo_set_vf_mac
= mlx5e_set_vf_mac
,
3741 .ndo_set_vf_vlan
= mlx5e_set_vf_vlan
,
3742 .ndo_set_vf_spoofchk
= mlx5e_set_vf_spoofchk
,
3743 .ndo_set_vf_trust
= mlx5e_set_vf_trust
,
3744 .ndo_set_vf_rate
= mlx5e_set_vf_rate
,
3745 .ndo_get_vf_config
= mlx5e_get_vf_config
,
3746 .ndo_set_vf_link_state
= mlx5e_set_vf_link_state
,
3747 .ndo_get_vf_stats
= mlx5e_get_vf_stats
,
3748 .ndo_tx_timeout
= mlx5e_tx_timeout
,
3749 .ndo_xdp
= mlx5e_xdp
,
3750 #ifdef CONFIG_NET_POLL_CONTROLLER
3751 .ndo_poll_controller
= mlx5e_netpoll
,
3753 .ndo_has_offload_stats
= mlx5e_has_offload_stats
,
3754 .ndo_get_offload_stats
= mlx5e_get_offload_stats
,
3757 static int mlx5e_check_required_hca_cap(struct mlx5_core_dev
*mdev
)
3759 if (MLX5_CAP_GEN(mdev
, port_type
) != MLX5_CAP_PORT_TYPE_ETH
)
3761 if (!MLX5_CAP_GEN(mdev
, eth_net_offloads
) ||
3762 !MLX5_CAP_GEN(mdev
, nic_flow_table
) ||
3763 !MLX5_CAP_ETH(mdev
, csum_cap
) ||
3764 !MLX5_CAP_ETH(mdev
, max_lso_cap
) ||
3765 !MLX5_CAP_ETH(mdev
, vlan_cap
) ||
3766 !MLX5_CAP_ETH(mdev
, rss_ind_tbl_cap
) ||
3767 MLX5_CAP_FLOWTABLE(mdev
,
3768 flow_table_properties_nic_receive
.max_ft_level
)
3770 mlx5_core_warn(mdev
,
3771 "Not creating net device, some required device capabilities are missing\n");
3774 if (!MLX5_CAP_ETH(mdev
, self_lb_en_modifiable
))
3775 mlx5_core_warn(mdev
, "Self loop back prevention is not supported\n");
3776 if (!MLX5_CAP_GEN(mdev
, cq_moderation
))
3777 mlx5_core_warn(mdev
, "CQ moderation is not supported\n");
3782 u16
mlx5e_get_max_inline_cap(struct mlx5_core_dev
*mdev
)
3784 int bf_buf_size
= (1 << MLX5_CAP_GEN(mdev
, log_bf_reg_size
)) / 2;
3786 return bf_buf_size
-
3787 sizeof(struct mlx5e_tx_wqe
) +
3788 2 /*sizeof(mlx5e_tx_wqe.inline_hdr_start)*/;
3791 void mlx5e_build_default_indir_rqt(struct mlx5_core_dev
*mdev
,
3792 u32
*indirection_rqt
, int len
,
3795 int node
= mdev
->priv
.numa_node
;
3796 int node_num_of_cores
;
3800 node
= first_online_node
;
3802 node_num_of_cores
= cpumask_weight(cpumask_of_node(node
));
3804 if (node_num_of_cores
)
3805 num_channels
= min_t(int, num_channels
, node_num_of_cores
);
3807 for (i
= 0; i
< len
; i
++)
3808 indirection_rqt
[i
] = i
% num_channels
;
3811 static int mlx5e_get_pci_bw(struct mlx5_core_dev
*mdev
, u32
*pci_bw
)
3813 enum pcie_link_width width
;
3814 enum pci_bus_speed speed
;
3817 err
= pcie_get_minimum_link(mdev
->pdev
, &speed
, &width
);
3821 if (speed
== PCI_SPEED_UNKNOWN
|| width
== PCIE_LNK_WIDTH_UNKNOWN
)
3825 case PCIE_SPEED_2_5GT
:
3826 *pci_bw
= 2500 * width
;
3828 case PCIE_SPEED_5_0GT
:
3829 *pci_bw
= 5000 * width
;
3831 case PCIE_SPEED_8_0GT
:
3832 *pci_bw
= 8000 * width
;
3841 static bool cqe_compress_heuristic(u32 link_speed
, u32 pci_bw
)
3843 return (link_speed
&& pci_bw
&&
3844 (pci_bw
< 40000) && (pci_bw
< link_speed
));
3847 static bool hw_lro_heuristic(u32 link_speed
, u32 pci_bw
)
3849 return !(link_speed
&& pci_bw
&&
3850 (pci_bw
<= 16000) && (pci_bw
< link_speed
));
3853 void mlx5e_set_rx_cq_mode_params(struct mlx5e_params
*params
, u8 cq_period_mode
)
3855 params
->rx_cq_period_mode
= cq_period_mode
;
3857 params
->rx_cq_moderation
.pkts
=
3858 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS
;
3859 params
->rx_cq_moderation
.usec
=
3860 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC
;
3862 if (cq_period_mode
== MLX5_CQ_PERIOD_MODE_START_FROM_CQE
)
3863 params
->rx_cq_moderation
.usec
=
3864 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE
;
3866 if (params
->rx_am_enabled
)
3867 params
->rx_cq_moderation
=
3868 mlx5e_am_get_def_profile(params
->rx_cq_period_mode
);
3870 MLX5E_SET_PFLAG(params
, MLX5E_PFLAG_RX_CQE_BASED_MODER
,
3871 params
->rx_cq_period_mode
== MLX5_CQ_PERIOD_MODE_START_FROM_CQE
);
3874 u32
mlx5e_choose_lro_timeout(struct mlx5_core_dev
*mdev
, u32 wanted_timeout
)
3878 /* The supported periods are organized in ascending order */
3879 for (i
= 0; i
< MLX5E_LRO_TIMEOUT_ARR_SIZE
- 1; i
++)
3880 if (MLX5_CAP_ETH(mdev
, lro_timer_supported_periods
[i
]) >= wanted_timeout
)
3883 return MLX5_CAP_ETH(mdev
, lro_timer_supported_periods
[i
]);
3886 void mlx5e_build_nic_params(struct mlx5_core_dev
*mdev
,
3887 struct mlx5e_params
*params
,
3890 u8 cq_period_mode
= 0;
3894 params
->num_channels
= max_channels
;
3897 mlx5e_get_max_linkspeed(mdev
, &link_speed
);
3898 mlx5e_get_pci_bw(mdev
, &pci_bw
);
3899 mlx5_core_dbg(mdev
, "Max link speed = %d, PCI BW = %d\n",
3900 link_speed
, pci_bw
);
3903 params
->log_sq_size
= is_kdump_kernel() ?
3904 MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE
:
3905 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE
;
3907 /* set CQE compression */
3908 params
->rx_cqe_compress_def
= false;
3909 if (MLX5_CAP_GEN(mdev
, cqe_compression
) &&
3910 MLX5_CAP_GEN(mdev
, vport_group_manager
))
3911 params
->rx_cqe_compress_def
= cqe_compress_heuristic(link_speed
, pci_bw
);
3913 MLX5E_SET_PFLAG(params
, MLX5E_PFLAG_RX_CQE_COMPRESS
, params
->rx_cqe_compress_def
);
3916 mlx5e_set_rq_params(mdev
, params
);
3920 /* TODO: && MLX5_CAP_ETH(mdev, lro_cap) */
3921 if (params
->rq_wq_type
== MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ
)
3922 params
->lro_en
= hw_lro_heuristic(link_speed
, pci_bw
);
3923 params
->lro_timeout
= mlx5e_choose_lro_timeout(mdev
, MLX5E_DEFAULT_LRO_TIMEOUT
);
3925 /* CQ moderation params */
3926 cq_period_mode
= MLX5_CAP_GEN(mdev
, cq_period_start_from_cqe
) ?
3927 MLX5_CQ_PERIOD_MODE_START_FROM_CQE
:
3928 MLX5_CQ_PERIOD_MODE_START_FROM_EQE
;
3929 params
->rx_am_enabled
= MLX5_CAP_GEN(mdev
, cq_moderation
);
3930 mlx5e_set_rx_cq_mode_params(params
, cq_period_mode
);
3932 params
->tx_cq_moderation
.usec
= MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC
;
3933 params
->tx_cq_moderation
.pkts
= MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS
;
3936 params
->tx_max_inline
= mlx5e_get_max_inline_cap(mdev
);
3937 mlx5_query_min_inline(mdev
, ¶ms
->tx_min_inline_mode
);
3938 if (params
->tx_min_inline_mode
== MLX5_INLINE_MODE_NONE
&&
3939 !MLX5_CAP_ETH(mdev
, wqe_vlan_insert
))
3940 params
->tx_min_inline_mode
= MLX5_INLINE_MODE_L2
;
3943 params
->rss_hfunc
= ETH_RSS_HASH_XOR
;
3944 netdev_rss_key_fill(params
->toeplitz_hash_key
, sizeof(params
->toeplitz_hash_key
));
3945 mlx5e_build_default_indir_rqt(mdev
, params
->indirection_rqt
,
3946 MLX5E_INDIR_RQT_SIZE
, max_channels
);
3949 static void mlx5e_build_nic_netdev_priv(struct mlx5_core_dev
*mdev
,
3950 struct net_device
*netdev
,
3951 const struct mlx5e_profile
*profile
,
3954 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3957 priv
->netdev
= netdev
;
3958 priv
->profile
= profile
;
3959 priv
->ppriv
= ppriv
;
3960 priv
->hard_mtu
= MLX5E_ETH_HARD_MTU
;
3962 mlx5e_build_nic_params(mdev
, &priv
->channels
.params
, profile
->max_nch(mdev
));
3964 mutex_init(&priv
->state_lock
);
3966 INIT_WORK(&priv
->update_carrier_work
, mlx5e_update_carrier_work
);
3967 INIT_WORK(&priv
->set_rx_mode_work
, mlx5e_set_rx_mode_work
);
3968 INIT_WORK(&priv
->tx_timeout_work
, mlx5e_tx_timeout_work
);
3969 INIT_DELAYED_WORK(&priv
->update_stats_work
, mlx5e_update_stats_work
);
3972 static void mlx5e_set_netdev_dev_addr(struct net_device
*netdev
)
3974 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3976 mlx5_query_nic_vport_mac_address(priv
->mdev
, 0, netdev
->dev_addr
);
3977 if (is_zero_ether_addr(netdev
->dev_addr
) &&
3978 !MLX5_CAP_GEN(priv
->mdev
, vport_group_manager
)) {
3979 eth_hw_addr_random(netdev
);
3980 mlx5_core_info(priv
->mdev
, "Assigned random MAC address %pM\n", netdev
->dev_addr
);
3984 static const struct switchdev_ops mlx5e_switchdev_ops
= {
3985 .switchdev_port_attr_get
= mlx5e_attr_get
,
3988 static void mlx5e_build_nic_netdev(struct net_device
*netdev
)
3990 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
3991 struct mlx5_core_dev
*mdev
= priv
->mdev
;
3995 SET_NETDEV_DEV(netdev
, &mdev
->pdev
->dev
);
3997 if (MLX5_CAP_GEN(mdev
, vport_group_manager
)) {
3998 netdev
->netdev_ops
= &mlx5e_netdev_ops_sriov
;
3999 #ifdef CONFIG_MLX5_CORE_EN_DCB
4000 if (MLX5_CAP_GEN(mdev
, qos
))
4001 netdev
->dcbnl_ops
= &mlx5e_dcbnl_ops
;
4004 netdev
->netdev_ops
= &mlx5e_netdev_ops_basic
;
4007 netdev
->watchdog_timeo
= 15 * HZ
;
4009 netdev
->ethtool_ops
= &mlx5e_ethtool_ops
;
4011 netdev
->vlan_features
|= NETIF_F_SG
;
4012 netdev
->vlan_features
|= NETIF_F_IP_CSUM
;
4013 netdev
->vlan_features
|= NETIF_F_IPV6_CSUM
;
4014 netdev
->vlan_features
|= NETIF_F_GRO
;
4015 netdev
->vlan_features
|= NETIF_F_TSO
;
4016 netdev
->vlan_features
|= NETIF_F_TSO6
;
4017 netdev
->vlan_features
|= NETIF_F_RXCSUM
;
4018 netdev
->vlan_features
|= NETIF_F_RXHASH
;
4020 if (!!MLX5_CAP_ETH(mdev
, lro_cap
))
4021 netdev
->vlan_features
|= NETIF_F_LRO
;
4023 netdev
->hw_features
= netdev
->vlan_features
;
4024 netdev
->hw_features
|= NETIF_F_HW_VLAN_CTAG_TX
;
4025 netdev
->hw_features
|= NETIF_F_HW_VLAN_CTAG_RX
;
4026 netdev
->hw_features
|= NETIF_F_HW_VLAN_CTAG_FILTER
;
4028 if (mlx5e_vxlan_allowed(mdev
)) {
4029 netdev
->hw_features
|= NETIF_F_GSO_UDP_TUNNEL
|
4030 NETIF_F_GSO_UDP_TUNNEL_CSUM
|
4031 NETIF_F_GSO_PARTIAL
;
4032 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
;
4033 netdev
->hw_enc_features
|= NETIF_F_IPV6_CSUM
;
4034 netdev
->hw_enc_features
|= NETIF_F_TSO
;
4035 netdev
->hw_enc_features
|= NETIF_F_TSO6
;
4036 netdev
->hw_enc_features
|= NETIF_F_GSO_UDP_TUNNEL
;
4037 netdev
->hw_enc_features
|= NETIF_F_GSO_UDP_TUNNEL_CSUM
|
4038 NETIF_F_GSO_PARTIAL
;
4039 netdev
->gso_partial_features
= NETIF_F_GSO_UDP_TUNNEL_CSUM
;
4042 mlx5_query_port_fcs(mdev
, &fcs_supported
, &fcs_enabled
);
4045 netdev
->hw_features
|= NETIF_F_RXALL
;
4047 if (MLX5_CAP_ETH(mdev
, scatter_fcs
))
4048 netdev
->hw_features
|= NETIF_F_RXFCS
;
4050 netdev
->features
= netdev
->hw_features
;
4051 if (!priv
->channels
.params
.lro_en
)
4052 netdev
->features
&= ~NETIF_F_LRO
;
4055 netdev
->features
&= ~NETIF_F_RXALL
;
4057 if (!priv
->channels
.params
.scatter_fcs_en
)
4058 netdev
->features
&= ~NETIF_F_RXFCS
;
4060 #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f)
4061 if (FT_CAP(flow_modify_en
) &&
4062 FT_CAP(modify_root
) &&
4063 FT_CAP(identified_miss_table_mode
) &&
4064 FT_CAP(flow_table_modify
)) {
4065 netdev
->hw_features
|= NETIF_F_HW_TC
;
4066 #ifdef CONFIG_RFS_ACCEL
4067 netdev
->hw_features
|= NETIF_F_NTUPLE
;
4071 netdev
->features
|= NETIF_F_HIGHDMA
;
4073 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
4075 mlx5e_set_netdev_dev_addr(netdev
);
4077 #ifdef CONFIG_NET_SWITCHDEV
4078 if (MLX5_CAP_GEN(mdev
, vport_group_manager
))
4079 netdev
->switchdev_ops
= &mlx5e_switchdev_ops
;
4082 mlx5e_ipsec_build_netdev(priv
);
4085 static void mlx5e_create_q_counter(struct mlx5e_priv
*priv
)
4087 struct mlx5_core_dev
*mdev
= priv
->mdev
;
4090 err
= mlx5_core_alloc_q_counter(mdev
, &priv
->q_counter
);
4092 mlx5_core_warn(mdev
, "alloc queue counter failed, %d\n", err
);
4093 priv
->q_counter
= 0;
4097 static void mlx5e_destroy_q_counter(struct mlx5e_priv
*priv
)
4099 if (!priv
->q_counter
)
4102 mlx5_core_dealloc_q_counter(priv
->mdev
, priv
->q_counter
);
4105 static void mlx5e_nic_init(struct mlx5_core_dev
*mdev
,
4106 struct net_device
*netdev
,
4107 const struct mlx5e_profile
*profile
,
4110 struct mlx5e_priv
*priv
= netdev_priv(netdev
);
4113 mlx5e_build_nic_netdev_priv(mdev
, netdev
, profile
, ppriv
);
4114 err
= mlx5e_ipsec_init(priv
);
4116 mlx5_core_err(mdev
, "IPSec initialization failed, %d\n", err
);
4117 mlx5e_build_nic_netdev(netdev
);
4118 mlx5e_vxlan_init(priv
);
4121 static void mlx5e_nic_cleanup(struct mlx5e_priv
*priv
)
4123 mlx5e_ipsec_cleanup(priv
);
4124 mlx5e_vxlan_cleanup(priv
);
4126 if (priv
->channels
.params
.xdp_prog
)
4127 bpf_prog_put(priv
->channels
.params
.xdp_prog
);
4130 static int mlx5e_init_nic_rx(struct mlx5e_priv
*priv
)
4132 struct mlx5_core_dev
*mdev
= priv
->mdev
;
4135 err
= mlx5e_create_indirect_rqt(priv
);
4139 err
= mlx5e_create_direct_rqts(priv
);
4141 goto err_destroy_indirect_rqts
;
4143 err
= mlx5e_create_indirect_tirs(priv
);
4145 goto err_destroy_direct_rqts
;
4147 err
= mlx5e_create_direct_tirs(priv
);
4149 goto err_destroy_indirect_tirs
;
4151 err
= mlx5e_create_flow_steering(priv
);
4153 mlx5_core_warn(mdev
, "create flow steering failed, %d\n", err
);
4154 goto err_destroy_direct_tirs
;
4157 err
= mlx5e_tc_init(priv
);
4159 goto err_destroy_flow_steering
;
4163 err_destroy_flow_steering
:
4164 mlx5e_destroy_flow_steering(priv
);
4165 err_destroy_direct_tirs
:
4166 mlx5e_destroy_direct_tirs(priv
);
4167 err_destroy_indirect_tirs
:
4168 mlx5e_destroy_indirect_tirs(priv
);
4169 err_destroy_direct_rqts
:
4170 mlx5e_destroy_direct_rqts(priv
);
4171 err_destroy_indirect_rqts
:
4172 mlx5e_destroy_rqt(priv
, &priv
->indir_rqt
);
4176 static void mlx5e_cleanup_nic_rx(struct mlx5e_priv
*priv
)
4178 mlx5e_tc_cleanup(priv
);
4179 mlx5e_destroy_flow_steering(priv
);
4180 mlx5e_destroy_direct_tirs(priv
);
4181 mlx5e_destroy_indirect_tirs(priv
);
4182 mlx5e_destroy_direct_rqts(priv
);
4183 mlx5e_destroy_rqt(priv
, &priv
->indir_rqt
);
4186 static int mlx5e_init_nic_tx(struct mlx5e_priv
*priv
)
4190 err
= mlx5e_create_tises(priv
);
4192 mlx5_core_warn(priv
->mdev
, "create tises failed, %d\n", err
);
4196 #ifdef CONFIG_MLX5_CORE_EN_DCB
4197 mlx5e_dcbnl_initialize(priv
);
4202 static void mlx5e_nic_enable(struct mlx5e_priv
*priv
)
4204 struct net_device
*netdev
= priv
->netdev
;
4205 struct mlx5_core_dev
*mdev
= priv
->mdev
;
4208 mlx5e_init_l2_addr(priv
);
4210 /* MTU range: 68 - hw-specific max */
4211 netdev
->min_mtu
= ETH_MIN_MTU
;
4212 mlx5_query_port_max_mtu(priv
->mdev
, &max_mtu
, 1);
4213 netdev
->max_mtu
= MLX5E_HW2SW_MTU(priv
, max_mtu
);
4214 mlx5e_set_dev_port_mtu(priv
);
4216 mlx5_lag_add(mdev
, netdev
);
4218 mlx5e_enable_async_events(priv
);
4220 if (MLX5_CAP_GEN(mdev
, vport_group_manager
))
4221 mlx5e_register_vport_reps(priv
);
4223 if (netdev
->reg_state
!= NETREG_REGISTERED
)
4226 /* Device already registered: sync netdev system state */
4227 if (mlx5e_vxlan_allowed(mdev
)) {
4229 udp_tunnel_get_rx_info(netdev
);
4233 queue_work(priv
->wq
, &priv
->set_rx_mode_work
);
4236 if (netif_running(netdev
))
4238 netif_device_attach(netdev
);
4242 static void mlx5e_nic_disable(struct mlx5e_priv
*priv
)
4244 struct mlx5_core_dev
*mdev
= priv
->mdev
;
4247 if (netif_running(priv
->netdev
))
4248 mlx5e_close(priv
->netdev
);
4249 netif_device_detach(priv
->netdev
);
4252 queue_work(priv
->wq
, &priv
->set_rx_mode_work
);
4254 if (MLX5_CAP_GEN(mdev
, vport_group_manager
))
4255 mlx5e_unregister_vport_reps(priv
);
4257 mlx5e_disable_async_events(priv
);
4258 mlx5_lag_remove(mdev
);
4261 static const struct mlx5e_profile mlx5e_nic_profile
= {
4262 .init
= mlx5e_nic_init
,
4263 .cleanup
= mlx5e_nic_cleanup
,
4264 .init_rx
= mlx5e_init_nic_rx
,
4265 .cleanup_rx
= mlx5e_cleanup_nic_rx
,
4266 .init_tx
= mlx5e_init_nic_tx
,
4267 .cleanup_tx
= mlx5e_cleanup_nic_tx
,
4268 .enable
= mlx5e_nic_enable
,
4269 .disable
= mlx5e_nic_disable
,
4270 .update_stats
= mlx5e_update_ndo_stats
,
4271 .max_nch
= mlx5e_get_max_num_channels
,
4272 .update_carrier
= mlx5e_update_carrier
,
4273 .rx_handlers
.handle_rx_cqe
= mlx5e_handle_rx_cqe
,
4274 .rx_handlers
.handle_rx_cqe_mpwqe
= mlx5e_handle_rx_cqe_mpwrq
,
4275 .max_tc
= MLX5E_MAX_NUM_TC
,
4278 /* mlx5e generic netdev management API (move to en_common.c) */
4280 struct net_device
*mlx5e_create_netdev(struct mlx5_core_dev
*mdev
,
4281 const struct mlx5e_profile
*profile
,
4284 int nch
= profile
->max_nch(mdev
);
4285 struct net_device
*netdev
;
4286 struct mlx5e_priv
*priv
;
4288 netdev
= alloc_etherdev_mqs(sizeof(struct mlx5e_priv
),
4289 nch
* profile
->max_tc
,
4292 mlx5_core_err(mdev
, "alloc_etherdev_mqs() failed\n");
4296 #ifdef CONFIG_RFS_ACCEL
4297 netdev
->rx_cpu_rmap
= mdev
->rmap
;
4300 profile
->init(mdev
, netdev
, profile
, ppriv
);
4302 netif_carrier_off(netdev
);
4304 priv
= netdev_priv(netdev
);
4306 priv
->wq
= create_singlethread_workqueue("mlx5e");
4308 goto err_cleanup_nic
;
4313 if (profile
->cleanup
)
4314 profile
->cleanup(priv
);
4315 free_netdev(netdev
);
4320 int mlx5e_attach_netdev(struct mlx5e_priv
*priv
)
4322 struct mlx5_core_dev
*mdev
= priv
->mdev
;
4323 const struct mlx5e_profile
*profile
;
4326 profile
= priv
->profile
;
4327 clear_bit(MLX5E_STATE_DESTROYING
, &priv
->state
);
4329 err
= profile
->init_tx(priv
);
4333 err
= mlx5e_open_drop_rq(mdev
, &priv
->drop_rq
);
4335 mlx5_core_err(mdev
, "open drop rq failed, %d\n", err
);
4336 goto err_cleanup_tx
;
4339 err
= profile
->init_rx(priv
);
4341 goto err_close_drop_rq
;
4343 mlx5e_create_q_counter(priv
);
4345 if (profile
->enable
)
4346 profile
->enable(priv
);
4351 mlx5e_close_drop_rq(&priv
->drop_rq
);
4354 profile
->cleanup_tx(priv
);
4360 void mlx5e_detach_netdev(struct mlx5e_priv
*priv
)
4362 const struct mlx5e_profile
*profile
= priv
->profile
;
4364 set_bit(MLX5E_STATE_DESTROYING
, &priv
->state
);
4366 if (profile
->disable
)
4367 profile
->disable(priv
);
4368 flush_workqueue(priv
->wq
);
4370 mlx5e_destroy_q_counter(priv
);
4371 profile
->cleanup_rx(priv
);
4372 mlx5e_close_drop_rq(&priv
->drop_rq
);
4373 profile
->cleanup_tx(priv
);
4374 cancel_delayed_work_sync(&priv
->update_stats_work
);
4377 void mlx5e_destroy_netdev(struct mlx5e_priv
*priv
)
4379 const struct mlx5e_profile
*profile
= priv
->profile
;
4380 struct net_device
*netdev
= priv
->netdev
;
4382 destroy_workqueue(priv
->wq
);
4383 if (profile
->cleanup
)
4384 profile
->cleanup(priv
);
4385 free_netdev(netdev
);
4388 /* mlx5e_attach and mlx5e_detach scope should be only creating/destroying
4389 * hardware contexts and to connect it to the current netdev.
4391 static int mlx5e_attach(struct mlx5_core_dev
*mdev
, void *vpriv
)
4393 struct mlx5e_priv
*priv
= vpriv
;
4394 struct net_device
*netdev
= priv
->netdev
;
4397 if (netif_device_present(netdev
))
4400 err
= mlx5e_create_mdev_resources(mdev
);
4404 err
= mlx5e_attach_netdev(priv
);
4406 mlx5e_destroy_mdev_resources(mdev
);
4413 static void mlx5e_detach(struct mlx5_core_dev
*mdev
, void *vpriv
)
4415 struct mlx5e_priv
*priv
= vpriv
;
4416 struct net_device
*netdev
= priv
->netdev
;
4418 if (!netif_device_present(netdev
))
4421 mlx5e_detach_netdev(priv
);
4422 mlx5e_destroy_mdev_resources(mdev
);
4425 static void *mlx5e_add(struct mlx5_core_dev
*mdev
)
4427 struct mlx5_eswitch
*esw
= mdev
->priv
.eswitch
;
4428 int total_vfs
= MLX5_TOTAL_VPORTS(mdev
);
4429 struct mlx5e_rep_priv
*rpriv
= NULL
;
4433 struct net_device
*netdev
;
4435 err
= mlx5e_check_required_hca_cap(mdev
);
4439 if (MLX5_CAP_GEN(mdev
, vport_group_manager
)) {
4440 rpriv
= kzalloc(sizeof(*rpriv
), GFP_KERNEL
);
4442 mlx5_core_warn(mdev
,
4443 "Not creating net device, Failed to alloc rep priv data\n");
4446 rpriv
->rep
= &esw
->offloads
.vport_reps
[0];
4449 netdev
= mlx5e_create_netdev(mdev
, &mlx5e_nic_profile
, rpriv
);
4451 mlx5_core_err(mdev
, "mlx5e_create_netdev failed\n");
4452 goto err_unregister_reps
;
4455 priv
= netdev_priv(netdev
);
4457 err
= mlx5e_attach(mdev
, priv
);
4459 mlx5_core_err(mdev
, "mlx5e_attach failed, %d\n", err
);
4460 goto err_destroy_netdev
;
4463 err
= register_netdev(netdev
);
4465 mlx5_core_err(mdev
, "register_netdev failed, %d\n", err
);
4472 mlx5e_detach(mdev
, priv
);
4475 mlx5e_destroy_netdev(priv
);
4477 err_unregister_reps
:
4478 for (vport
= 1; vport
< total_vfs
; vport
++)
4479 mlx5_eswitch_unregister_vport_rep(esw
, vport
);
4485 static void mlx5e_remove(struct mlx5_core_dev
*mdev
, void *vpriv
)
4487 struct mlx5e_priv
*priv
= vpriv
;
4488 void *ppriv
= priv
->ppriv
;
4490 unregister_netdev(priv
->netdev
);
4491 mlx5e_detach(mdev
, vpriv
);
4492 mlx5e_destroy_netdev(priv
);
4496 static void *mlx5e_get_netdev(void *vpriv
)
4498 struct mlx5e_priv
*priv
= vpriv
;
4500 return priv
->netdev
;
4503 static struct mlx5_interface mlx5e_interface
= {
4505 .remove
= mlx5e_remove
,
4506 .attach
= mlx5e_attach
,
4507 .detach
= mlx5e_detach
,
4508 .event
= mlx5e_async_event
,
4509 .protocol
= MLX5_INTERFACE_PROTOCOL_ETH
,
4510 .get_dev
= mlx5e_get_netdev
,
4513 void mlx5e_init(void)
4515 mlx5e_ipsec_build_inverse_table();
4516 mlx5e_build_ptys2ethtool_map();
4517 mlx5_register_interface(&mlx5e_interface
);
4520 void mlx5e_cleanup(void)
4522 mlx5_unregister_interface(&mlx5e_interface
);