xref: /freebsd/sys/dev/mlx5/mlx5_en/en.h (revision 78b9f0095b4af3aca6c931b2c7b009ddb8a05125)
1 /*-
2  * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  *
25  * $FreeBSD$
26  */
27 
28 #ifndef _MLX5_EN_H_
29 #define	_MLX5_EN_H_
30 
31 #include <linux/kmod.h>
32 #include <linux/page.h>
33 #include <linux/slab.h>
34 #include <linux/if_vlan.h>
35 #include <linux/if_ether.h>
36 #include <linux/vmalloc.h>
37 #include <linux/moduleparam.h>
38 #include <linux/delay.h>
39 #include <linux/netdevice.h>
40 #include <linux/etherdevice.h>
41 
42 #include <netinet/in_systm.h>
43 #include <netinet/in.h>
44 #include <netinet/if_ether.h>
45 #include <netinet/ip.h>
46 #include <netinet/ip6.h>
47 #include <netinet/tcp.h>
48 #include <netinet/tcp_lro.h>
49 #include <netinet/udp.h>
50 #include <net/ethernet.h>
51 #include <sys/buf_ring.h>
52 #include <sys/kthread.h>
53 
54 #include "opt_rss.h"
55 
56 #ifdef	RSS
57 #include <net/rss_config.h>
58 #include <netinet/in_rss.h>
59 #endif
60 
61 #include <machine/bus.h>
62 
63 #include <dev/mlx5/driver.h>
64 #include <dev/mlx5/qp.h>
65 #include <dev/mlx5/cq.h>
66 #include <dev/mlx5/port.h>
67 #include <dev/mlx5/vport.h>
68 #include <dev/mlx5/diagnostics.h>
69 
70 #include <dev/mlx5/mlx5_core/wq.h>
71 #include <dev/mlx5/mlx5_core/transobj.h>
72 #include <dev/mlx5/mlx5_core/mlx5_core.h>
73 
74 #define	IEEE_8021QAZ_MAX_TCS	8
75 
76 #define	MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE                0x7
77 #define	MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE                0xa
78 #define	MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE                0xe
79 
80 #define	MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE                0x7
81 #define	MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE                0xa
82 #define	MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE                0xe
83 
84 #define	MLX5E_MAX_RX_SEGS 7
85 
86 #ifndef MLX5E_MAX_RX_BYTES
87 #define	MLX5E_MAX_RX_BYTES MCLBYTES
88 #endif
89 
90 #if (MLX5E_MAX_RX_SEGS == 1)
91 /* FreeBSD HW LRO is limited by 16KB - the size of max mbuf */
92 #define	MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ                 MJUM16BYTES
93 #else
94 #define	MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ \
95     MIN(65535, MLX5E_MAX_RX_SEGS * MLX5E_MAX_RX_BYTES)
96 #endif
97 #define	MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC      0x10
98 #define	MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE	0x3
99 #define	MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS      0x20
100 #define	MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC      0x10
101 #define	MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS      0x20
102 #define	MLX5E_PARAMS_DEFAULT_MIN_RX_WQES                0x80
103 #define	MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ         0x7
104 #define	MLX5E_CACHELINE_SIZE CACHE_LINE_SIZE
105 #define	MLX5E_HW2SW_MTU(hwmtu) \
106     ((hwmtu) - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + ETHER_CRC_LEN))
107 #define	MLX5E_SW2HW_MTU(swmtu) \
108     ((swmtu) + (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + ETHER_CRC_LEN))
109 #define	MLX5E_SW2MB_MTU(swmtu) \
110     (MLX5E_SW2HW_MTU(swmtu) + MLX5E_NET_IP_ALIGN)
111 #define	MLX5E_MTU_MIN		72	/* Min MTU allowed by the kernel */
112 #define	MLX5E_MTU_MAX		MIN(ETHERMTU_JUMBO, MJUM16BYTES)	/* Max MTU of Ethernet
113 									 * jumbo frames */
114 
115 #define	MLX5E_BUDGET_MAX	8192	/* RX and TX */
116 #define	MLX5E_RX_BUDGET_MAX	256
117 #define	MLX5E_SQ_BF_BUDGET	16
118 #define	MLX5E_SQ_TX_QUEUE_SIZE	4096	/* SQ drbr queue size */
119 
120 #define	MLX5E_MAX_TX_NUM_TC	8	/* units */
121 #define	MLX5E_MAX_TX_HEADER	128	/* bytes */
122 #define	MLX5E_MAX_TX_PAYLOAD_SIZE	65536	/* bytes */
123 #define	MLX5E_MAX_TX_MBUF_SIZE	65536	/* bytes */
124 #define	MLX5E_MAX_TX_MBUF_FRAGS	\
125     ((MLX5_SEND_WQE_MAX_WQEBBS * MLX5_SEND_WQEBB_NUM_DS) - \
126     (MLX5E_MAX_TX_HEADER / MLX5_SEND_WQE_DS))	/* units */
127 #define	MLX5E_MAX_TX_INLINE \
128   (MLX5E_MAX_TX_HEADER - sizeof(struct mlx5e_tx_wqe) + \
129   sizeof(((struct mlx5e_tx_wqe *)0)->eth.inline_hdr_start))	/* bytes */
130 
131 #define	MLX5E_100MB (100000)
132 #define	MLX5E_1GB   (1000000)
133 
134 MALLOC_DECLARE(M_MLX5EN);
135 
136 struct mlx5_core_dev;
137 struct mlx5e_cq;
138 
139 typedef void (mlx5e_cq_comp_t)(struct mlx5_core_cq *);
140 
141 #define	MLX5E_STATS_COUNT(a,b,c,d) a
142 #define	MLX5E_STATS_VAR(a,b,c,d) b;
143 #define	MLX5E_STATS_DESC(a,b,c,d) c, d,
144 
145 #define	MLX5E_VPORT_STATS(m)						\
146   /* HW counters */							\
147   m(+1, u64 rx_packets, "rx_packets", "Received packets")		\
148   m(+1, u64 rx_bytes, "rx_bytes", "Received bytes")			\
149   m(+1, u64 tx_packets, "tx_packets", "Transmitted packets")		\
150   m(+1, u64 tx_bytes, "tx_bytes", "Transmitted bytes")			\
151   m(+1, u64 rx_error_packets, "rx_error_packets", "Received error packets") \
152   m(+1, u64 rx_error_bytes, "rx_error_bytes", "Received error bytes")	\
153   m(+1, u64 tx_error_packets, "tx_error_packets", "Transmitted error packets") \
154   m(+1, u64 tx_error_bytes, "tx_error_bytes", "Transmitted error bytes") \
155   m(+1, u64 rx_unicast_packets, "rx_unicast_packets", "Received unicast packets") \
156   m(+1, u64 rx_unicast_bytes, "rx_unicast_bytes", "Received unicast bytes") \
157   m(+1, u64 tx_unicast_packets, "tx_unicast_packets", "Transmitted unicast packets") \
158   m(+1, u64 tx_unicast_bytes, "tx_unicast_bytes", "Transmitted unicast bytes") \
159   m(+1, u64 rx_multicast_packets, "rx_multicast_packets", "Received multicast packets") \
160   m(+1, u64 rx_multicast_bytes, "rx_multicast_bytes", "Received multicast bytes") \
161   m(+1, u64 tx_multicast_packets, "tx_multicast_packets", "Transmitted multicast packets") \
162   m(+1, u64 tx_multicast_bytes, "tx_multicast_bytes", "Transmitted multicast bytes") \
163   m(+1, u64 rx_broadcast_packets, "rx_broadcast_packets", "Received broadcast packets") \
164   m(+1, u64 rx_broadcast_bytes, "rx_broadcast_bytes", "Received broadcast bytes") \
165   m(+1, u64 tx_broadcast_packets, "tx_broadcast_packets", "Transmitted broadcast packets") \
166   m(+1, u64 tx_broadcast_bytes, "tx_broadcast_bytes", "Transmitted broadcast bytes") \
167   m(+1, u64 rx_out_of_buffer, "rx_out_of_buffer", "Receive out of buffer, no recv wqes events") \
168   /* SW counters */							\
169   m(+1, u64 tso_packets, "tso_packets", "Transmitted TSO packets")	\
170   m(+1, u64 tso_bytes, "tso_bytes", "Transmitted TSO bytes")		\
171   m(+1, u64 lro_packets, "lro_packets", "Received LRO packets")		\
172   m(+1, u64 lro_bytes, "lro_bytes", "Received LRO bytes")		\
173   m(+1, u64 sw_lro_queued, "sw_lro_queued", "Packets queued for SW LRO")	\
174   m(+1, u64 sw_lro_flushed, "sw_lro_flushed", "Packets flushed from SW LRO")	\
175   m(+1, u64 rx_csum_good, "rx_csum_good", "Received checksum valid packets") \
176   m(+1, u64 rx_csum_none, "rx_csum_none", "Received no checksum packets") \
177   m(+1, u64 tx_csum_offload, "tx_csum_offload", "Transmit checksum offload packets") \
178   m(+1, u64 tx_queue_dropped, "tx_queue_dropped", "Transmit queue dropped") \
179   m(+1, u64 tx_defragged, "tx_defragged", "Transmit queue defragged") \
180   m(+1, u64 rx_wqe_err, "rx_wqe_err", "Receive WQE errors")
181 
182 #define	MLX5E_VPORT_STATS_NUM (0 MLX5E_VPORT_STATS(MLX5E_STATS_COUNT))
183 
184 struct mlx5e_vport_stats {
185 	struct	sysctl_ctx_list ctx;
186 	u64	arg [0];
187 	MLX5E_VPORT_STATS(MLX5E_STATS_VAR)
188 	u32	rx_out_of_buffer_prev;
189 };
190 
191 #define	MLX5E_PPORT_IEEE802_3_STATS(m)					\
192   m(+1, u64 frames_tx, "frames_tx", "Frames transmitted")		\
193   m(+1, u64 frames_rx, "frames_rx", "Frames received")			\
194   m(+1, u64 check_seq_err, "check_seq_err", "Sequence errors")		\
195   m(+1, u64 alignment_err, "alignment_err", "Alignment errors")	\
196   m(+1, u64 octets_tx, "octets_tx", "Bytes transmitted")		\
197   m(+1, u64 octets_received, "octets_received", "Bytes received")	\
198   m(+1, u64 multicast_xmitted, "multicast_xmitted", "Multicast transmitted") \
199   m(+1, u64 broadcast_xmitted, "broadcast_xmitted", "Broadcast transmitted") \
200   m(+1, u64 multicast_rx, "multicast_rx", "Multicast received")	\
201   m(+1, u64 broadcast_rx, "broadcast_rx", "Broadcast received")	\
202   m(+1, u64 in_range_len_errors, "in_range_len_errors", "In range length errors") \
203   m(+1, u64 out_of_range_len, "out_of_range_len", "Out of range length errors") \
204   m(+1, u64 too_long_errors, "too_long_errors", "Too long errors")	\
205   m(+1, u64 symbol_err, "symbol_err", "Symbol errors")			\
206   m(+1, u64 mac_control_tx, "mac_control_tx", "MAC control transmitted") \
207   m(+1, u64 mac_control_rx, "mac_control_rx", "MAC control received")	\
208   m(+1, u64 unsupported_op_rx, "unsupported_op_rx", "Unsupported operation received") \
209   m(+1, u64 pause_ctrl_rx, "pause_ctrl_rx", "Pause control received")	\
210   m(+1, u64 pause_ctrl_tx, "pause_ctrl_tx", "Pause control transmitted")
211 
212 #define	MLX5E_PPORT_RFC2819_STATS(m)					\
213   m(+1, u64 drop_events, "drop_events", "Dropped events")		\
214   m(+1, u64 octets, "octets", "Octets")					\
215   m(+1, u64 pkts, "pkts", "Packets")					\
216   m(+1, u64 broadcast_pkts, "broadcast_pkts", "Broadcast packets")	\
217   m(+1, u64 multicast_pkts, "multicast_pkts", "Multicast packets")	\
218   m(+1, u64 crc_align_errors, "crc_align_errors", "CRC alignment errors") \
219   m(+1, u64 undersize_pkts, "undersize_pkts", "Undersized packets")	\
220   m(+1, u64 oversize_pkts, "oversize_pkts", "Oversized packets")	\
221   m(+1, u64 fragments, "fragments", "Fragments")			\
222   m(+1, u64 jabbers, "jabbers", "Jabbers")				\
223   m(+1, u64 collisions, "collisions", "Collisions")
224 
225 #define	MLX5E_PPORT_RFC2819_STATS_DEBUG(m)				\
226   m(+1, u64 p64octets, "p64octets", "Bytes")				\
227   m(+1, u64 p65to127octets, "p65to127octets", "Bytes")			\
228   m(+1, u64 p128to255octets, "p128to255octets", "Bytes")		\
229   m(+1, u64 p256to511octets, "p256to511octets", "Bytes")		\
230   m(+1, u64 p512to1023octets, "p512to1023octets", "Bytes")		\
231   m(+1, u64 p1024to1518octets, "p1024to1518octets", "Bytes")		\
232   m(+1, u64 p1519to2047octets, "p1519to2047octets", "Bytes")		\
233   m(+1, u64 p2048to4095octets, "p2048to4095octets", "Bytes")		\
234   m(+1, u64 p4096to8191octets, "p4096to8191octets", "Bytes")		\
235   m(+1, u64 p8192to10239octets, "p8192to10239octets", "Bytes")
236 
237 #define	MLX5E_PPORT_RFC2863_STATS_DEBUG(m)				\
238   m(+1, u64 in_octets, "in_octets", "In octets")			\
239   m(+1, u64 in_ucast_pkts, "in_ucast_pkts", "In unicast packets")	\
240   m(+1, u64 in_discards, "in_discards", "In discards")			\
241   m(+1, u64 in_errors, "in_errors", "In errors")			\
242   m(+1, u64 in_unknown_protos, "in_unknown_protos", "In unknown protocols") \
243   m(+1, u64 out_octets, "out_octets", "Out octets")			\
244   m(+1, u64 out_ucast_pkts, "out_ucast_pkts", "Out unicast packets")	\
245   m(+1, u64 out_discards, "out_discards", "Out discards")		\
246   m(+1, u64 out_errors, "out_errors", "Out errors")			\
247   m(+1, u64 in_multicast_pkts, "in_multicast_pkts", "In multicast packets") \
248   m(+1, u64 in_broadcast_pkts, "in_broadcast_pkts", "In broadcast packets") \
249   m(+1, u64 out_multicast_pkts, "out_multicast_pkts", "Out multicast packets") \
250   m(+1, u64 out_broadcast_pkts, "out_broadcast_pkts", "Out broadcast packets")
251 
252 #define	MLX5E_PPORT_PHYSICAL_LAYER_STATS_DEBUG(m)                                    		\
253   m(+1, u64 time_since_last_clear, "time_since_last_clear",				\
254 			"Time since the last counters clear event (msec)")		\
255   m(+1, u64 symbol_errors, "symbol_errors", "Symbol errors")				\
256   m(+1, u64 sync_headers_errors, "sync_headers_errors", "Sync header error counter")	\
257   m(+1, u64 bip_errors_lane0, "edpl_bip_errors_lane0",					\
258 			"Indicates the number of PRBS errors on lane 0")		\
259   m(+1, u64 bip_errors_lane1, "edpl_bip_errors_lane1",					\
260 			"Indicates the number of PRBS errors on lane 1")		\
261   m(+1, u64 bip_errors_lane2, "edpl_bip_errors_lane2",					\
262 			"Indicates the number of PRBS errors on lane 2")		\
263   m(+1, u64 bip_errors_lane3, "edpl_bip_errors_lane3",					\
264 			"Indicates the number of PRBS errors on lane 3")		\
265   m(+1, u64 fc_corrected_blocks_lane0, "fc_corrected_blocks_lane0",			\
266 			"FEC correctable block counter lane 0")				\
267   m(+1, u64 fc_corrected_blocks_lane1, "fc_corrected_blocks_lane1",			\
268 			"FEC correctable block counter lane 1")				\
269   m(+1, u64 fc_corrected_blocks_lane2, "fc_corrected_blocks_lane2",			\
270 			"FEC correctable block counter lane 2")				\
271   m(+1, u64 fc_corrected_blocks_lane3, "fc_corrected_blocks_lane3",			\
272 			"FEC correctable block counter lane 3")				\
273   m(+1, u64 rs_corrected_blocks, "rs_corrected_blocks",					\
274 			"FEC correcable block counter")					\
275   m(+1, u64 rs_uncorrectable_blocks, "rs_uncorrectable_blocks",				\
276 			"FEC uncorrecable block counter")				\
277   m(+1, u64 rs_no_errors_blocks, "rs_no_errors_blocks",					\
278 			"The number of RS-FEC blocks received that had no errors")	\
279   m(+1, u64 rs_single_error_blocks, "rs_single_error_blocks",				\
280 			"The number of corrected RS-FEC blocks received that had"	\
281 			"exactly 1 error symbol")					\
282   m(+1, u64 rs_corrected_symbols_total, "rs_corrected_symbols_total",			\
283 			"Port FEC corrected symbol counter")				\
284   m(+1, u64 rs_corrected_symbols_lane0, "rs_corrected_symbols_lane0",			\
285 			"FEC corrected symbol counter lane 0")				\
286   m(+1, u64 rs_corrected_symbols_lane1, "rs_corrected_symbols_lane1",			\
287 			"FEC corrected symbol counter lane 1")				\
288   m(+1, u64 rs_corrected_symbols_lane2, "rs_corrected_symbols_lane2",			\
289 			"FEC corrected symbol counter lane 2")				\
290   m(+1, u64 rs_corrected_symbols_lane3, "rs_corrected_symbols_lane3",			\
291 			"FEC corrected symbol counter lane 3")
292 
293 /* Per priority statistics for PFC */
294 #define	MLX5E_PPORT_PER_PRIO_STATS_SUB(m,n,p)			\
295   m(n, p, +1, u64, rx_octets, "rx_octets", "Received octets")		\
296   m(n, p, +1, u64, reserved_0, "reserved_0", "Reserved")		\
297   m(n, p, +1, u64, reserved_1, "reserved_1", "Reserved")		\
298   m(n, p, +1, u64, reserved_2, "reserved_2", "Reserved")		\
299   m(n, p, +1, u64, rx_frames, "rx_frames", "Received frames")		\
300   m(n, p, +1, u64, tx_octets, "tx_octets", "Transmitted octets")	\
301   m(n, p, +1, u64, reserved_3, "reserved_3", "Reserved")		\
302   m(n, p, +1, u64, reserved_4, "reserved_4", "Reserved")		\
303   m(n, p, +1, u64, reserved_5, "reserved_5", "Reserved")		\
304   m(n, p, +1, u64, tx_frames, "tx_frames", "Transmitted frames")	\
305   m(n, p, +1, u64, rx_pause, "rx_pause", "Received pause frames")	\
306   m(n, p, +1, u64, rx_pause_duration, "rx_pause_duration",		\
307 	"Received pause duration")					\
308   m(n, p, +1, u64, tx_pause, "tx_pause", "Transmitted pause frames")	\
309   m(n, p, +1, u64, tx_pause_duration, "tx_pause_duration",		\
310 	"Transmitted pause duration")					\
311   m(n, p, +1, u64, rx_pause_transition, "rx_pause_transition",		\
312 	"Received pause transitions")					\
313   m(n, p, +1, u64, rx_discards, "rx_discards", "Discarded received frames") \
314   m(n, p, +1, u64, device_stall_minor_watermark,			\
315 	"device_stall_minor_watermark", "Device stall minor watermark")	\
316   m(n, p, +1, u64, device_stall_critical_watermark,			\
317 	"device_stall_critical_watermark", "Device stall critical watermark")
318 
319 #define	MLX5E_PPORT_PER_PRIO_STATS_PREFIX(m,p,c,t,f,s,d) \
320   m(c, t pri_##p##_##f, "prio" #p "_" s, "Priority " #p " - " d)
321 
322 #define	MLX5E_PPORT_PER_PRIO_STATS_NUM_PRIO 8
323 
324 #define	MLX5E_PPORT_PER_PRIO_STATS(m) \
325   MLX5E_PPORT_PER_PRIO_STATS_SUB(MLX5E_PPORT_PER_PRIO_STATS_PREFIX,m,0) \
326   MLX5E_PPORT_PER_PRIO_STATS_SUB(MLX5E_PPORT_PER_PRIO_STATS_PREFIX,m,1) \
327   MLX5E_PPORT_PER_PRIO_STATS_SUB(MLX5E_PPORT_PER_PRIO_STATS_PREFIX,m,2) \
328   MLX5E_PPORT_PER_PRIO_STATS_SUB(MLX5E_PPORT_PER_PRIO_STATS_PREFIX,m,3) \
329   MLX5E_PPORT_PER_PRIO_STATS_SUB(MLX5E_PPORT_PER_PRIO_STATS_PREFIX,m,4) \
330   MLX5E_PPORT_PER_PRIO_STATS_SUB(MLX5E_PPORT_PER_PRIO_STATS_PREFIX,m,5) \
331   MLX5E_PPORT_PER_PRIO_STATS_SUB(MLX5E_PPORT_PER_PRIO_STATS_PREFIX,m,6) \
332   MLX5E_PPORT_PER_PRIO_STATS_SUB(MLX5E_PPORT_PER_PRIO_STATS_PREFIX,m,7)
333 
334 /*
335  * Make sure to update mlx5e_update_pport_counters()
336  * when adding a new MLX5E_PPORT_STATS block
337  */
338 #define	MLX5E_PPORT_STATS(m)			\
339   MLX5E_PPORT_PER_PRIO_STATS(m)		\
340   MLX5E_PPORT_IEEE802_3_STATS(m)		\
341   MLX5E_PPORT_RFC2819_STATS(m)
342 
343 #define	MLX5E_PORT_STATS_DEBUG(m)		\
344   MLX5E_PPORT_RFC2819_STATS_DEBUG(m)		\
345   MLX5E_PPORT_RFC2863_STATS_DEBUG(m)		\
346   MLX5E_PPORT_PHYSICAL_LAYER_STATS_DEBUG(m)
347 
348 #define	MLX5E_PPORT_IEEE802_3_STATS_NUM \
349   (0 MLX5E_PPORT_IEEE802_3_STATS(MLX5E_STATS_COUNT))
350 #define	MLX5E_PPORT_RFC2819_STATS_NUM \
351   (0 MLX5E_PPORT_RFC2819_STATS(MLX5E_STATS_COUNT))
352 #define	MLX5E_PPORT_STATS_NUM \
353   (0 MLX5E_PPORT_STATS(MLX5E_STATS_COUNT))
354 
355 #define	MLX5E_PPORT_PER_PRIO_STATS_NUM \
356   (0 MLX5E_PPORT_PER_PRIO_STATS(MLX5E_STATS_COUNT))
357 #define	MLX5E_PPORT_RFC2819_STATS_DEBUG_NUM \
358   (0 MLX5E_PPORT_RFC2819_STATS_DEBUG(MLX5E_STATS_COUNT))
359 #define	MLX5E_PPORT_RFC2863_STATS_DEBUG_NUM \
360   (0 MLX5E_PPORT_RFC2863_STATS_DEBUG(MLX5E_STATS_COUNT))
361 #define	MLX5E_PPORT_PHYSICAL_LAYER_STATS_DEBUG_NUM \
362   (0 MLX5E_PPORT_PHYSICAL_LAYER_STATS_DEBUG(MLX5E_STATS_COUNT))
363 #define	MLX5E_PORT_STATS_DEBUG_NUM \
364   (0 MLX5E_PORT_STATS_DEBUG(MLX5E_STATS_COUNT))
365 
366 struct mlx5e_pport_stats {
367 	struct	sysctl_ctx_list ctx;
368 	u64	arg [0];
369 	MLX5E_PPORT_STATS(MLX5E_STATS_VAR)
370 };
371 
372 struct mlx5e_port_stats_debug {
373 	struct	sysctl_ctx_list ctx;
374 	u64	arg [0];
375 	MLX5E_PORT_STATS_DEBUG(MLX5E_STATS_VAR)
376 };
377 
378 #define	MLX5E_RQ_STATS(m)					\
379   m(+1, u64 packets, "packets", "Received packets")		\
380   m(+1, u64 csum_none, "csum_none", "Received packets")		\
381   m(+1, u64 lro_packets, "lro_packets", "Received packets")	\
382   m(+1, u64 lro_bytes, "lro_bytes", "Received packets")		\
383   m(+1, u64 sw_lro_queued, "sw_lro_queued", "Packets queued for SW LRO")	\
384   m(+1, u64 sw_lro_flushed, "sw_lro_flushed", "Packets flushed from SW LRO")	\
385   m(+1, u64 wqe_err, "wqe_err", "Received packets")
386 
387 #define	MLX5E_RQ_STATS_NUM (0 MLX5E_RQ_STATS(MLX5E_STATS_COUNT))
388 
389 struct mlx5e_rq_stats {
390 	struct	sysctl_ctx_list ctx;
391 	u64	arg [0];
392 	MLX5E_RQ_STATS(MLX5E_STATS_VAR)
393 };
394 
395 #define	MLX5E_SQ_STATS(m)						\
396   m(+1, u64 packets, "packets", "Transmitted packets")			\
397   m(+1, u64 tso_packets, "tso_packets", "Transmitted packets")		\
398   m(+1, u64 tso_bytes, "tso_bytes", "Transmitted bytes")		\
399   m(+1, u64 csum_offload_none, "csum_offload_none", "Transmitted packets")	\
400   m(+1, u64 defragged, "defragged", "Transmitted packets")		\
401   m(+1, u64 dropped, "dropped", "Transmitted packets")			\
402   m(+1, u64 nop, "nop", "Transmitted packets")
403 
404 #define	MLX5E_SQ_STATS_NUM (0 MLX5E_SQ_STATS(MLX5E_STATS_COUNT))
405 
406 struct mlx5e_sq_stats {
407 	struct	sysctl_ctx_list ctx;
408 	u64	arg [0];
409 	MLX5E_SQ_STATS(MLX5E_STATS_VAR)
410 };
411 
412 struct mlx5e_stats {
413 	struct mlx5e_vport_stats vport;
414 	struct mlx5e_pport_stats pport;
415 	struct mlx5e_port_stats_debug port_stats_debug;
416 };
417 
418 struct mlx5e_rq_param {
419 	u32	rqc [MLX5_ST_SZ_DW(rqc)];
420 	struct mlx5_wq_param wq;
421 };
422 
423 struct mlx5e_sq_param {
424 	u32	sqc [MLX5_ST_SZ_DW(sqc)];
425 	struct mlx5_wq_param wq;
426 };
427 
428 struct mlx5e_cq_param {
429 	u32	cqc [MLX5_ST_SZ_DW(cqc)];
430 	struct mlx5_wq_param wq;
431 };
432 
433 struct mlx5e_params {
434 	u8	log_sq_size;
435 	u8	log_rq_size;
436 	u16	num_channels;
437 	u8	default_vlan_prio;
438 	u8	num_tc;
439 	u8	rx_cq_moderation_mode;
440 	u8	tx_cq_moderation_mode;
441 	u16	rx_cq_moderation_usec;
442 	u16	rx_cq_moderation_pkts;
443 	u16	tx_cq_moderation_usec;
444 	u16	tx_cq_moderation_pkts;
445 	u16	min_rx_wqes;
446 	bool	hw_lro_en;
447 	bool	cqe_zipping_en;
448 	u32	lro_wqe_sz;
449 	u16	rx_hash_log_tbl_sz;
450 	u32	tx_pauseframe_control __aligned(4);
451 	u32	rx_pauseframe_control __aligned(4);
452 	u32	tx_priority_flow_control __aligned(4);
453 	u32	rx_priority_flow_control __aligned(4);
454 	u16	tx_max_inline;
455 	u8	tx_min_inline_mode;
456 };
457 
458 #define	MLX5E_PARAMS(m)							\
459   m(+1, u64 tx_queue_size_max, "tx_queue_size_max", "Max send queue size") \
460   m(+1, u64 rx_queue_size_max, "rx_queue_size_max", "Max receive queue size") \
461   m(+1, u64 tx_queue_size, "tx_queue_size", "Default send queue size")	\
462   m(+1, u64 rx_queue_size, "rx_queue_size", "Default receive queue size") \
463   m(+1, u64 channels, "channels", "Default number of channels")		\
464   m(+1, u64 coalesce_usecs_max, "coalesce_usecs_max", "Maximum usecs for joining packets") \
465   m(+1, u64 coalesce_pkts_max, "coalesce_pkts_max", "Maximum packets to join") \
466   m(+1, u64 rx_coalesce_usecs, "rx_coalesce_usecs", "Limit in usec for joining rx packets") \
467   m(+1, u64 rx_coalesce_pkts, "rx_coalesce_pkts", "Maximum number of rx packets to join") \
468   m(+1, u64 rx_coalesce_mode, "rx_coalesce_mode", "0: EQE mode 1: CQE mode") \
469   m(+1, u64 tx_coalesce_usecs, "tx_coalesce_usecs", "Limit in usec for joining tx packets") \
470   m(+1, u64 tx_coalesce_pkts, "tx_coalesce_pkts", "Maximum number of tx packets to join") \
471   m(+1, u64 tx_coalesce_mode, "tx_coalesce_mode", "0: EQE mode 1: CQE mode") \
472   m(+1, u64 tx_bufring_disable, "tx_bufring_disable", "0: Enable bufring 1: Disable bufring") \
473   m(+1, u64 tx_completion_fact, "tx_completion_fact", "1..MAX: Completion event ratio") \
474   m(+1, u64 tx_completion_fact_max, "tx_completion_fact_max", "Maximum completion event ratio") \
475   m(+1, u64 hw_lro, "hw_lro", "set to enable hw_lro") \
476   m(+1, u64 cqe_zipping, "cqe_zipping", "0 : CQE zipping disabled") \
477   m(+1, u64 modify_tx_dma, "modify_tx_dma", "0: Enable TX 1: Disable TX") \
478   m(+1, u64 modify_rx_dma, "modify_rx_dma", "0: Enable RX 1: Disable RX") \
479   m(+1, u64 diag_pci_enable, "diag_pci_enable", "0: Disabled 1: Enabled") \
480   m(+1, u64 diag_general_enable, "diag_general_enable", "0: Disabled 1: Enabled") \
481   m(+1, u64 hw_mtu, "hw_mtu", "Current hardware MTU value") \
482   m(+1, u64 mc_local_lb, "mc_local_lb", "0: Local multicast loopback enabled 1: Disabled") \
483   m(+1, u64 uc_local_lb, "uc_local_lb", "0: Local unicast loopback enabled 1: Disabled")
484 
485 
486 #define	MLX5E_PARAMS_NUM (0 MLX5E_PARAMS(MLX5E_STATS_COUNT))
487 
488 struct mlx5e_params_ethtool {
489 	u64	arg [0];
490 	MLX5E_PARAMS(MLX5E_STATS_VAR)
491 	u64	max_bw_value[IEEE_8021QAZ_MAX_TCS];
492 	u8	prio_tc[IEEE_8021QAZ_MAX_TCS];
493 	u8	dscp2prio[MLX5_MAX_SUPPORTED_DSCP];
494 	u8	trust_state;
495 };
496 
497 /* EEPROM Standards for plug in modules */
498 #ifndef MLX5E_ETH_MODULE_SFF_8472
499 #define	MLX5E_ETH_MODULE_SFF_8472	0x1
500 #define	MLX5E_ETH_MODULE_SFF_8472_LEN	128
501 #endif
502 
503 #ifndef MLX5E_ETH_MODULE_SFF_8636
504 #define	MLX5E_ETH_MODULE_SFF_8636	0x2
505 #define	MLX5E_ETH_MODULE_SFF_8636_LEN	256
506 #endif
507 
508 #ifndef MLX5E_ETH_MODULE_SFF_8436
509 #define	MLX5E_ETH_MODULE_SFF_8436	0x3
510 #define	MLX5E_ETH_MODULE_SFF_8436_LEN	256
511 #endif
512 
513 /* EEPROM I2C Addresses */
514 #define	MLX5E_I2C_ADDR_LOW		0x50
515 #define	MLX5E_I2C_ADDR_HIGH		0x51
516 
517 #define	MLX5E_EEPROM_LOW_PAGE		0x0
518 #define	MLX5E_EEPROM_HIGH_PAGE		0x3
519 
520 #define	MLX5E_EEPROM_HIGH_PAGE_OFFSET	128
521 #define	MLX5E_EEPROM_PAGE_LENGTH	256
522 
523 #define	MLX5E_EEPROM_INFO_BYTES		0x3
524 
525 struct mlx5e_cq {
526 	/* data path - accessed per cqe */
527 	struct mlx5_cqwq wq;
528 
529 	/* data path - accessed per HW polling */
530 	struct mlx5_core_cq mcq;
531 
532 	/* control */
533 	struct mlx5e_priv *priv;
534 	struct mlx5_wq_ctrl wq_ctrl;
535 } __aligned(MLX5E_CACHELINE_SIZE);
536 
537 struct mlx5e_rq_mbuf {
538 	bus_dmamap_t	dma_map;
539 	caddr_t		data;
540 	struct mbuf	*mbuf;
541 };
542 
543 struct mlx5e_rq {
544 	/* data path */
545 	struct mlx5_wq_ll wq;
546 	struct mtx mtx;
547 	bus_dma_tag_t dma_tag;
548 	u32	wqe_sz;
549 	u32	nsegs;
550 	struct mlx5e_rq_mbuf *mbuf;
551 	struct ifnet *ifp;
552 	struct mlx5e_rq_stats stats;
553 	struct mlx5e_cq cq;
554 	struct lro_ctrl lro;
555 	volatile int enabled;
556 	int	ix;
557 
558 	/* control */
559 	struct mlx5_wq_ctrl wq_ctrl;
560 	u32	rqn;
561 	struct mlx5e_channel *channel;
562 	struct callout watchdog;
563 } __aligned(MLX5E_CACHELINE_SIZE);
564 
565 struct mlx5e_sq_mbuf {
566 	bus_dmamap_t dma_map;
567 	struct mbuf *mbuf;
568 	u32	num_bytes;
569 	u32	num_wqebbs;
570 };
571 
572 enum {
573 	MLX5E_SQ_READY,
574 	MLX5E_SQ_FULL
575 };
576 
577 struct mlx5e_sq {
578 	/* data path */
579 	struct	mtx lock;
580 	bus_dma_tag_t dma_tag;
581 	struct	mtx comp_lock;
582 
583 	/* dirtied @completion */
584 	u16	cc;
585 
586 	/* dirtied @xmit */
587 	u16	pc __aligned(MLX5E_CACHELINE_SIZE);
588 	u16	bf_offset;
589 	u16	cev_counter;		/* completion event counter */
590 	u16	cev_factor;		/* completion event factor */
591 	u16	cev_next_state;		/* next completion event state */
592 #define	MLX5E_CEV_STATE_INITIAL 0	/* timer not started */
593 #define	MLX5E_CEV_STATE_SEND_NOPS 1	/* send NOPs */
594 #define	MLX5E_CEV_STATE_HOLD_NOPS 2	/* don't send NOPs yet */
595 	u16	stopped;		/* set if SQ is stopped */
596 	struct callout cev_callout;
597 	union {
598 		u32	d32[2];
599 		u64	d64;
600 	} doorbell;
601 	struct	mlx5e_sq_stats stats;
602 
603 	struct	mlx5e_cq cq;
604 	struct	task sq_task;
605 	struct	taskqueue *sq_tq;
606 
607 	/* pointers to per packet info: write@xmit, read@completion */
608 	struct	mlx5e_sq_mbuf *mbuf;
609 	struct	buf_ring *br;
610 
611 	/* read only */
612 	struct	mlx5_wq_cyc wq;
613 	struct	mlx5_uar uar;
614 	struct	ifnet *ifp;
615 	u32	sqn;
616 	u32	bf_buf_size;
617 	u32	mkey_be;
618 	u16	max_inline;
619 	u8	min_inline_mode;
620 	u8	vlan_inline_cap;
621 
622 	/* control path */
623 	struct	mlx5_wq_ctrl wq_ctrl;
624 	struct	mlx5e_priv *priv;
625 	int	tc;
626 	unsigned int queue_state;
627 } __aligned(MLX5E_CACHELINE_SIZE);
628 
629 static inline bool
630 mlx5e_sq_has_room_for(struct mlx5e_sq *sq, u16 n)
631 {
632 	u16 cc = sq->cc;
633 	u16 pc = sq->pc;
634 
635 	return ((sq->wq.sz_m1 & (cc - pc)) >= n || cc == pc);
636 }
637 
638 struct mlx5e_channel {
639 	/* data path */
640 	struct mlx5e_rq rq;
641 	struct mlx5e_sq sq[MLX5E_MAX_TX_NUM_TC];
642 	struct ifnet *ifp;
643 	u32	mkey_be;
644 	u8	num_tc;
645 
646 	/* control */
647 	struct mlx5e_priv *priv;
648 	int	ix;
649 	int	cpu;
650 } __aligned(MLX5E_CACHELINE_SIZE);
651 
652 enum mlx5e_traffic_types {
653 	MLX5E_TT_IPV4_TCP,
654 	MLX5E_TT_IPV6_TCP,
655 	MLX5E_TT_IPV4_UDP,
656 	MLX5E_TT_IPV6_UDP,
657 	MLX5E_TT_IPV4_IPSEC_AH,
658 	MLX5E_TT_IPV6_IPSEC_AH,
659 	MLX5E_TT_IPV4_IPSEC_ESP,
660 	MLX5E_TT_IPV6_IPSEC_ESP,
661 	MLX5E_TT_IPV4,
662 	MLX5E_TT_IPV6,
663 	MLX5E_TT_ANY,
664 	MLX5E_NUM_TT,
665 };
666 
667 enum {
668 	MLX5E_RQT_SPREADING = 0,
669 	MLX5E_RQT_DEFAULT_RQ = 1,
670 	MLX5E_NUM_RQT = 2,
671 };
672 
673 struct mlx5_flow_rule;
674 
675 struct mlx5e_eth_addr_info {
676 	u8	addr [ETH_ALEN + 2];
677 	u32	tt_vec;
678 	/* flow table rule per traffic type */
679 	struct mlx5_flow_rule	*ft_rule[MLX5E_NUM_TT];
680 };
681 
682 #define	MLX5E_ETH_ADDR_HASH_SIZE (1 << BITS_PER_BYTE)
683 
684 struct mlx5e_eth_addr_hash_node;
685 
686 struct mlx5e_eth_addr_hash_head {
687 	struct mlx5e_eth_addr_hash_node *lh_first;
688 };
689 
690 struct mlx5e_eth_addr_db {
691 	struct mlx5e_eth_addr_hash_head if_uc[MLX5E_ETH_ADDR_HASH_SIZE];
692 	struct mlx5e_eth_addr_hash_head if_mc[MLX5E_ETH_ADDR_HASH_SIZE];
693 	struct mlx5e_eth_addr_info broadcast;
694 	struct mlx5e_eth_addr_info allmulti;
695 	struct mlx5e_eth_addr_info promisc;
696 	bool	broadcast_enabled;
697 	bool	allmulti_enabled;
698 	bool	promisc_enabled;
699 };
700 
701 enum {
702 	MLX5E_STATE_ASYNC_EVENTS_ENABLE,
703 	MLX5E_STATE_OPENED,
704 };
705 
706 enum {
707 	MLX5_BW_NO_LIMIT   = 0,
708 	MLX5_100_MBPS_UNIT = 3,
709 	MLX5_GBPS_UNIT     = 4,
710 };
711 
712 struct mlx5e_vlan_db {
713 	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
714 	struct mlx5_flow_rule	*active_vlans_ft_rule[VLAN_N_VID];
715 	struct mlx5_flow_rule	*untagged_ft_rule;
716 	struct mlx5_flow_rule	*any_cvlan_ft_rule;
717 	struct mlx5_flow_rule	*any_svlan_ft_rule;
718 	bool	filter_disabled;
719 };
720 
721 struct mlx5e_flow_table {
722 	int num_groups;
723 	struct mlx5_flow_table *t;
724 	struct mlx5_flow_group **g;
725 };
726 
727 struct mlx5e_flow_tables {
728 	struct mlx5_flow_namespace *ns;
729 	struct mlx5e_flow_table vlan;
730 	struct mlx5e_flow_table main;
731 	struct mlx5e_flow_table inner_rss;
732 };
733 
734 #ifdef RATELIMIT
735 #include "en_rl.h"
736 #endif
737 
738 #define	MLX5E_TSTMP_PREC 10
739 
740 struct mlx5e_clbr_point {
741 	uint64_t base_curr;
742 	uint64_t base_prev;
743 	uint64_t clbr_hw_prev;
744 	uint64_t clbr_hw_curr;
745 	u_int clbr_gen;
746 };
747 
748 struct mlx5e_priv {
749 	struct mlx5_core_dev *mdev;     /* must be first */
750 
751 	/* priv data path fields - start */
752 	int	order_base_2_num_channels;
753 	int	queue_mapping_channel_mask;
754 	int	num_tc;
755 	int	default_vlan_prio;
756 	/* priv data path fields - end */
757 
758 	unsigned long state;
759 	int	gone;
760 #define	PRIV_LOCK(priv) sx_xlock(&(priv)->state_lock)
761 #define	PRIV_UNLOCK(priv) sx_xunlock(&(priv)->state_lock)
762 #define	PRIV_LOCKED(priv) sx_xlocked(&(priv)->state_lock)
763 	struct sx state_lock;		/* Protects Interface state */
764 	struct mlx5_uar cq_uar;
765 	u32	pdn;
766 	u32	tdn;
767 	struct mlx5_core_mr mr;
768 
769 	struct mlx5e_channel *volatile *channel;
770 	u32	tisn[MLX5E_MAX_TX_NUM_TC];
771 	u32	rqtn;
772 	u32	tirn[MLX5E_NUM_TT];
773 
774 	struct mlx5e_flow_tables fts;
775 	struct mlx5e_eth_addr_db eth_addr;
776 	struct mlx5e_vlan_db vlan;
777 
778 	struct mlx5e_params params;
779 	struct mlx5e_params_ethtool params_ethtool;
780 	union mlx5_core_pci_diagnostics params_pci;
781 	union mlx5_core_general_diagnostics params_general;
782 	struct mtx async_events_mtx;	/* sync hw events */
783 	struct work_struct update_stats_work;
784 	struct work_struct update_carrier_work;
785 	struct work_struct set_rx_mode_work;
786 	MLX5_DECLARE_DOORBELL_LOCK(doorbell_lock)
787 
788 	struct ifnet *ifp;
789 	struct sysctl_ctx_list sysctl_ctx;
790 	struct sysctl_oid *sysctl_ifnet;
791 	struct sysctl_oid *sysctl_hw;
792 	int	sysctl_debug;
793 	struct mlx5e_stats stats;
794 	struct sysctl_ctx_list sysctl_ctx_channel_debug;
795 	int	counter_set_id;
796 
797 	struct workqueue_struct *wq;
798 
799 	eventhandler_tag vlan_detach;
800 	eventhandler_tag vlan_attach;
801 	struct ifmedia media;
802 	int	media_status_last;
803 	int	media_active_last;
804 
805 	struct callout watchdog;
806 #ifdef RATELIMIT
807 	struct mlx5e_rl_priv_data rl;
808 #endif
809 
810 	struct callout tstmp_clbr;
811 	int	clbr_done;
812 	int	clbr_curr;
813 	struct mlx5e_clbr_point clbr_points[2];
814 	u_int	clbr_gen;
815 };
816 
817 #define	MLX5E_NET_IP_ALIGN 2
818 
819 struct mlx5e_tx_wqe {
820 	struct mlx5_wqe_ctrl_seg ctrl;
821 	struct mlx5_wqe_eth_seg eth;
822 };
823 
824 struct mlx5e_rx_wqe {
825 	struct mlx5_wqe_srq_next_seg next;
826 	struct mlx5_wqe_data_seg data[];
827 };
828 
829 /* the size of the structure above must be power of two */
830 CTASSERT(powerof2(sizeof(struct mlx5e_rx_wqe)));
831 
832 struct mlx5e_eeprom {
833 	int	lock_bit;
834 	int	i2c_addr;
835 	int	page_num;
836 	int	device_addr;
837 	int	module_num;
838 	int	len;
839 	int	type;
840 	int	page_valid;
841 	u32	*data;
842 };
843 
844 /*
845  * This structure contains rate limit extension to the IEEE 802.1Qaz ETS
846  * managed object.
847  * Values are 64 bits long and specified in Kbps to enable usage over both
848  * slow and very fast networks.
849  *
850  * @tc_maxrate: maximal tc tx bandwidth indexed by traffic class
851  */
852 struct ieee_maxrate {
853 	__u64	tc_maxrate[IEEE_8021QAZ_MAX_TCS];
854 };
855 
856 
857 #define	MLX5E_FLD_MAX(typ, fld) ((1ULL << __mlx5_bit_sz(typ, fld)) - 1ULL)
858 
859 int	mlx5e_xmit(struct ifnet *, struct mbuf *);
860 
861 int	mlx5e_open_locked(struct ifnet *);
862 int	mlx5e_close_locked(struct ifnet *);
863 
864 void	mlx5e_cq_error_event(struct mlx5_core_cq *mcq, int event);
865 void	mlx5e_rx_cq_comp(struct mlx5_core_cq *);
866 void	mlx5e_tx_cq_comp(struct mlx5_core_cq *);
867 struct mlx5_cqe64 *mlx5e_get_cqe(struct mlx5e_cq *cq);
868 void	mlx5e_tx_que(void *context, int pending);
869 
870 int	mlx5e_open_flow_table(struct mlx5e_priv *priv);
871 void	mlx5e_close_flow_table(struct mlx5e_priv *priv);
872 void	mlx5e_set_rx_mode_core(struct mlx5e_priv *priv);
873 void	mlx5e_set_rx_mode_work(struct work_struct *work);
874 
875 void	mlx5e_vlan_rx_add_vid(void *, struct ifnet *, u16);
876 void	mlx5e_vlan_rx_kill_vid(void *, struct ifnet *, u16);
877 void	mlx5e_enable_vlan_filter(struct mlx5e_priv *priv);
878 void	mlx5e_disable_vlan_filter(struct mlx5e_priv *priv);
879 int	mlx5e_add_all_vlan_rules(struct mlx5e_priv *priv);
880 void	mlx5e_del_all_vlan_rules(struct mlx5e_priv *priv);
881 
882 static inline void
883 mlx5e_tx_notify_hw(struct mlx5e_sq *sq, u32 *wqe, int bf_sz)
884 {
885 	u16 ofst = MLX5_BF_OFFSET + sq->bf_offset;
886 
887 	/* ensure wqe is visible to device before updating doorbell record */
888 	wmb();
889 
890 	*sq->wq.db = cpu_to_be32(sq->pc);
891 
892 	/*
893 	 * Ensure the doorbell record is visible to device before ringing
894 	 * the doorbell:
895 	 */
896 	wmb();
897 
898 	if (bf_sz) {
899 		__iowrite64_copy(sq->uar.bf_map + ofst, wqe, bf_sz);
900 
901 		/* flush the write-combining mapped buffer */
902 		wmb();
903 
904 	} else {
905 		mlx5_write64(wqe, sq->uar.map + ofst,
906 		    MLX5_GET_DOORBELL_LOCK(&sq->priv->doorbell_lock));
907 	}
908 
909 	sq->bf_offset ^= sq->bf_buf_size;
910 }
911 
912 static inline void
913 mlx5e_cq_arm(struct mlx5e_cq *cq, spinlock_t *dblock)
914 {
915 	struct mlx5_core_cq *mcq;
916 
917 	mcq = &cq->mcq;
918 	mlx5_cq_arm(mcq, MLX5_CQ_DB_REQ_NOT, mcq->uar->map, dblock, cq->wq.cc);
919 }
920 
921 extern const struct ethtool_ops mlx5e_ethtool_ops;
922 void	mlx5e_create_ethtool(struct mlx5e_priv *);
923 void	mlx5e_create_stats(struct sysctl_ctx_list *,
924     struct sysctl_oid_list *, const char *,
925     const char **, unsigned, u64 *);
926 void	mlx5e_send_nop(struct mlx5e_sq *, u32);
927 void	mlx5e_sq_cev_timeout(void *);
928 int	mlx5e_refresh_channel_params(struct mlx5e_priv *);
929 int	mlx5e_open_cq(struct mlx5e_priv *, struct mlx5e_cq_param *,
930     struct mlx5e_cq *, mlx5e_cq_comp_t *, int eq_ix);
931 void	mlx5e_close_cq(struct mlx5e_cq *);
932 void	mlx5e_free_sq_db(struct mlx5e_sq *);
933 int	mlx5e_alloc_sq_db(struct mlx5e_sq *);
934 int	mlx5e_enable_sq(struct mlx5e_sq *, struct mlx5e_sq_param *, int tis_num);
935 int	mlx5e_modify_sq(struct mlx5e_sq *, int curr_state, int next_state);
936 void	mlx5e_disable_sq(struct mlx5e_sq *);
937 void	mlx5e_drain_sq(struct mlx5e_sq *);
938 void	mlx5e_modify_tx_dma(struct mlx5e_priv *priv, uint8_t value);
939 void	mlx5e_modify_rx_dma(struct mlx5e_priv *priv, uint8_t value);
940 void	mlx5e_resume_sq(struct mlx5e_sq *sq);
941 u8	mlx5e_params_calculate_tx_min_inline(struct mlx5_core_dev *mdev);
942 
943 #endif					/* _MLX5_EN_H_ */
944