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4c352362 | 1 | /* |
2633beb9 | 2 | * Copyright (C) 2015-2017 Netronome Systems, Inc. |
4c352362 JK |
3 | * |
4 | * This software is dual licensed under the GNU General License Version 2, | |
5 | * June 1991 as shown in the file COPYING in the top-level directory of this | |
6 | * source tree or the BSD 2-Clause License provided below. You have the | |
7 | * option to license this software under the complete terms of either license. | |
8 | * | |
9 | * The BSD 2-Clause License: | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or | |
12 | * without modification, are permitted provided that the following | |
13 | * conditions are met: | |
14 | * | |
15 | * 1. Redistributions of source code must retain the above | |
16 | * copyright notice, this list of conditions and the following | |
17 | * disclaimer. | |
18 | * | |
19 | * 2. Redistributions in binary form must reproduce the above | |
20 | * copyright notice, this list of conditions and the following | |
21 | * disclaimer in the documentation and/or other materials | |
22 | * provided with the distribution. | |
23 | * | |
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
25 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
26 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
27 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
28 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
29 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
30 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
31 | * SOFTWARE. | |
32 | */ | |
33 | ||
34 | /* | |
35 | * nfp_net.h | |
36 | * Declarations for Netronome network device driver. | |
37 | * Authors: Jakub Kicinski <jakub.kicinski@netronome.com> | |
38 | * Jason McMullan <jason.mcmullan@netronome.com> | |
39 | * Rolf Neugebauer <rolf.neugebauer@netronome.com> | |
40 | */ | |
41 | ||
42 | #ifndef _NFP_NET_H_ | |
43 | #define _NFP_NET_H_ | |
44 | ||
45 | #include <linux/interrupt.h> | |
63461a02 | 46 | #include <linux/list.h> |
4c352362 JK |
47 | #include <linux/netdevice.h> |
48 | #include <linux/pci.h> | |
a1cbaad7 | 49 | #include <linux/io-64-nonatomic-hi-lo.h> |
4c352362 JK |
50 | |
51 | #include "nfp_net_ctrl.h" | |
52 | ||
c821e617 JK |
53 | #define nn_pr(nn, lvl, fmt, args...) \ |
54 | ({ \ | |
55 | struct nfp_net *__nn = (nn); \ | |
56 | \ | |
57 | if (__nn->dp.netdev) \ | |
58 | netdev_printk(lvl, __nn->dp.netdev, fmt, ## args); \ | |
59 | else \ | |
60 | dev_printk(lvl, __nn->dp.dev, "ctrl: " fmt, ## args); \ | |
61 | }) | |
62 | ||
63 | #define nn_err(nn, fmt, args...) nn_pr(nn, KERN_ERR, fmt, ## args) | |
64 | #define nn_warn(nn, fmt, args...) nn_pr(nn, KERN_WARNING, fmt, ## args) | |
65 | #define nn_info(nn, fmt, args...) nn_pr(nn, KERN_INFO, fmt, ## args) | |
66 | #define nn_dbg(nn, fmt, args...) nn_pr(nn, KERN_DEBUG, fmt, ## args) | |
67 | ||
79c12a75 | 68 | #define nn_dp_warn(dp, fmt, args...) \ |
c821e617 JK |
69 | ({ \ |
70 | struct nfp_net_dp *__dp = (dp); \ | |
71 | \ | |
72 | if (unlikely(net_ratelimit())) { \ | |
73 | if (__dp->netdev) \ | |
74 | netdev_warn(__dp->netdev, fmt, ## args); \ | |
75 | else \ | |
76 | dev_warn(__dp->dev, fmt, ## args); \ | |
77 | } \ | |
78 | }) | |
4c352362 | 79 | |
3d780b92 JK |
80 | /* Max time to wait for NFP to respond on updates (in seconds) */ |
81 | #define NFP_NET_POLL_TIMEOUT 5 | |
4c352362 | 82 | |
66860beb JK |
83 | /* Interval for reading offloaded filter stats */ |
84 | #define NFP_NET_STAT_POLL_IVL msecs_to_jiffies(100) | |
85 | ||
4c352362 | 86 | /* Bar allocation */ |
796312cd | 87 | #define NFP_NET_CTRL_BAR 0 |
4c352362 JK |
88 | #define NFP_NET_Q0_BAR 2 |
89 | #define NFP_NET_Q1_BAR 4 /* OBSOLETE */ | |
90 | ||
91 | /* Max bits in DMA address */ | |
92 | #define NFP_NET_MAX_DMA_BITS 40 | |
93 | ||
94 | /* Default size for MTU and freelist buffer sizes */ | |
95 | #define NFP_NET_DEFAULT_MTU 1500 | |
4c352362 JK |
96 | |
97 | /* Maximum number of bytes prepended to a packet */ | |
98 | #define NFP_NET_MAX_PREPEND 64 | |
99 | ||
100 | /* Interrupt definitions */ | |
101 | #define NFP_NET_NON_Q_VECTORS 2 | |
102 | #define NFP_NET_IRQ_LSC_IDX 0 | |
103 | #define NFP_NET_IRQ_EXN_IDX 1 | |
d4e7f092 | 104 | #define NFP_NET_MIN_VNIC_IRQS (NFP_NET_NON_Q_VECTORS + 1) |
4c352362 JK |
105 | |
106 | /* Queue/Ring definitions */ | |
107 | #define NFP_NET_MAX_TX_RINGS 64 /* Max. # of Tx rings per device */ | |
108 | #define NFP_NET_MAX_RX_RINGS 64 /* Max. # of Rx rings per device */ | |
23a4e389 JK |
109 | #define NFP_NET_MAX_R_VECS (NFP_NET_MAX_TX_RINGS > NFP_NET_MAX_RX_RINGS ? \ |
110 | NFP_NET_MAX_TX_RINGS : NFP_NET_MAX_RX_RINGS) | |
111 | #define NFP_NET_MAX_IRQS (NFP_NET_NON_Q_VECTORS + NFP_NET_MAX_R_VECS) | |
4c352362 JK |
112 | |
113 | #define NFP_NET_MIN_TX_DESCS 256 /* Min. # of Tx descs per ring */ | |
114 | #define NFP_NET_MIN_RX_DESCS 256 /* Min. # of Rx descs per ring */ | |
115 | #define NFP_NET_MAX_TX_DESCS (256 * 1024) /* Max. # of Tx descs per ring */ | |
116 | #define NFP_NET_MAX_RX_DESCS (256 * 1024) /* Max. # of Rx descs per ring */ | |
117 | ||
118 | #define NFP_NET_TX_DESCS_DEFAULT 4096 /* Default # of Tx descs per ring */ | |
119 | #define NFP_NET_RX_DESCS_DEFAULT 4096 /* Default # of Rx descs per ring */ | |
120 | ||
121 | #define NFP_NET_FL_BATCH 16 /* Add freelist in this Batch size */ | |
abeeec4a | 122 | #define NFP_NET_XDP_MAX_COMPLETE 2048 /* XDP bufs to reclaim in NAPI poll */ |
4c352362 JK |
123 | |
124 | /* Offload definitions */ | |
125 | #define NFP_NET_N_VXLAN_PORTS (NFP_NET_CFG_VXLAN_SZ / sizeof(__be16)) | |
126 | ||
c0f031bc JK |
127 | #define NFP_NET_RX_BUF_HEADROOM (NET_SKB_PAD + NET_IP_ALIGN) |
128 | #define NFP_NET_RX_BUF_NON_DATA (NFP_NET_RX_BUF_HEADROOM + \ | |
129 | SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) | |
130 | ||
4c352362 | 131 | /* Forward declarations */ |
bd5ca062 | 132 | struct nfp_cpp; |
47465aed | 133 | struct nfp_eth_table_port; |
4c352362 JK |
134 | struct nfp_net; |
135 | struct nfp_net_r_vector; | |
eb488c26 | 136 | struct nfp_port; |
4c352362 | 137 | |
4aa3b766 JK |
138 | /* Convenience macro for wrapping descriptor index on ring size */ |
139 | #define D_IDX(ring, idx) ((idx) & ((ring)->cnt - 1)) | |
140 | ||
4c352362 JK |
141 | /* Convenience macro for writing dma address into RX/TX descriptors */ |
142 | #define nfp_desc_set_dma_addr(desc, dma_addr) \ | |
143 | do { \ | |
144 | __typeof(desc) __d = (desc); \ | |
145 | dma_addr_t __addr = (dma_addr); \ | |
146 | \ | |
147 | __d->dma_addr_lo = cpu_to_le32(lower_32_bits(__addr)); \ | |
148 | __d->dma_addr_hi = upper_32_bits(__addr) & 0xff; \ | |
149 | } while (0) | |
150 | ||
151 | /* TX descriptor format */ | |
152 | ||
153 | #define PCIE_DESC_TX_EOP BIT(7) | |
154 | #define PCIE_DESC_TX_OFFSET_MASK GENMASK(6, 0) | |
155 | #define PCIE_DESC_TX_MSS_MASK GENMASK(13, 0) | |
156 | ||
157 | /* Flags in the host TX descriptor */ | |
158 | #define PCIE_DESC_TX_CSUM BIT(7) | |
159 | #define PCIE_DESC_TX_IP4_CSUM BIT(6) | |
160 | #define PCIE_DESC_TX_TCP_CSUM BIT(5) | |
161 | #define PCIE_DESC_TX_UDP_CSUM BIT(4) | |
162 | #define PCIE_DESC_TX_VLAN BIT(3) | |
163 | #define PCIE_DESC_TX_LSO BIT(2) | |
164 | #define PCIE_DESC_TX_ENCAP BIT(1) | |
165 | #define PCIE_DESC_TX_O_IP4_CSUM BIT(0) | |
166 | ||
167 | struct nfp_net_tx_desc { | |
168 | union { | |
169 | struct { | |
170 | u8 dma_addr_hi; /* High bits of host buf address */ | |
171 | __le16 dma_len; /* Length to DMA for this desc */ | |
172 | u8 offset_eop; /* Offset in buf where pkt starts + | |
173 | * highest bit is eop flag. | |
174 | */ | |
175 | __le32 dma_addr_lo; /* Low 32bit of host buf addr */ | |
176 | ||
177 | __le16 mss; /* MSS to be used for LSO */ | |
e53fc9fa | 178 | u8 lso_hdrlen; /* LSO, TCP payload offset */ |
4c352362 | 179 | u8 flags; /* TX Flags, see @PCIE_DESC_TX_* */ |
28063be6 EP |
180 | union { |
181 | struct { | |
182 | u8 l3_offset; /* L3 header offset */ | |
183 | u8 l4_offset; /* L4 header offset */ | |
184 | }; | |
185 | __le16 vlan; /* VLAN tag to add if indicated */ | |
186 | }; | |
4c352362 JK |
187 | __le16 data_len; /* Length of frame + meta data */ |
188 | } __packed; | |
189 | __le32 vals[4]; | |
190 | }; | |
191 | }; | |
192 | ||
193 | /** | |
194 | * struct nfp_net_tx_buf - software TX buffer descriptor | |
195 | * @skb: sk_buff associated with this buffer | |
196 | * @dma_addr: DMA mapping address of the buffer | |
197 | * @fidx: Fragment index (-1 for the head and [0..nr_frags-1] for frags) | |
198 | * @pkt_cnt: Number of packets to be produced out of the skb associated | |
199 | * with this buffer (valid only on the head's buffer). | |
200 | * Will be 1 for all non-TSO packets. | |
201 | * @real_len: Number of bytes which to be produced out of the skb (valid only | |
202 | * on the head's buffer). Equal to skb->len for non-TSO packets. | |
203 | */ | |
204 | struct nfp_net_tx_buf { | |
ecd63a02 JK |
205 | union { |
206 | struct sk_buff *skb; | |
207 | void *frag; | |
208 | }; | |
4c352362 JK |
209 | dma_addr_t dma_addr; |
210 | short int fidx; | |
211 | u16 pkt_cnt; | |
212 | u32 real_len; | |
213 | }; | |
214 | ||
215 | /** | |
216 | * struct nfp_net_tx_ring - TX ring structure | |
217 | * @r_vec: Back pointer to ring vector structure | |
218 | * @idx: Ring index from Linux's perspective | |
219 | * @qcidx: Queue Controller Peripheral (QCP) queue index for the TX queue | |
220 | * @qcp_q: Pointer to base of the QCP TX queue | |
221 | * @cnt: Size of the queue in number of descriptors | |
222 | * @wr_p: TX ring write pointer (free running) | |
223 | * @rd_p: TX ring read pointer (free running) | |
224 | * @qcp_rd_p: Local copy of QCP TX queue read pointer | |
225 | * @wr_ptr_add: Accumulated number of buffers to add to QCP write pointer | |
226 | * (used for .xmit_more delayed kick) | |
227 | * @txbufs: Array of transmitted TX buffers, to free on transmit | |
228 | * @txds: Virtual address of TX ring in host memory | |
229 | * @dma: DMA address of the TX ring | |
230 | * @size: Size, in bytes, of the TX ring (needed to free) | |
92e68195 | 231 | * @is_xdp: Is this a XDP TX ring? |
4c352362 JK |
232 | */ |
233 | struct nfp_net_tx_ring { | |
234 | struct nfp_net_r_vector *r_vec; | |
235 | ||
236 | u32 idx; | |
237 | int qcidx; | |
238 | u8 __iomem *qcp_q; | |
239 | ||
240 | u32 cnt; | |
241 | u32 wr_p; | |
242 | u32 rd_p; | |
243 | u32 qcp_rd_p; | |
244 | ||
245 | u32 wr_ptr_add; | |
246 | ||
247 | struct nfp_net_tx_buf *txbufs; | |
248 | struct nfp_net_tx_desc *txds; | |
249 | ||
250 | dma_addr_t dma; | |
251 | unsigned int size; | |
92e68195 | 252 | bool is_xdp; |
4c352362 JK |
253 | } ____cacheline_aligned; |
254 | ||
255 | /* RX and freelist descriptor format */ | |
256 | ||
257 | #define PCIE_DESC_RX_DD BIT(7) | |
258 | #define PCIE_DESC_RX_META_LEN_MASK GENMASK(6, 0) | |
259 | ||
260 | /* Flags in the RX descriptor */ | |
261 | #define PCIE_DESC_RX_RSS cpu_to_le16(BIT(15)) | |
262 | #define PCIE_DESC_RX_I_IP4_CSUM cpu_to_le16(BIT(14)) | |
263 | #define PCIE_DESC_RX_I_IP4_CSUM_OK cpu_to_le16(BIT(13)) | |
264 | #define PCIE_DESC_RX_I_TCP_CSUM cpu_to_le16(BIT(12)) | |
265 | #define PCIE_DESC_RX_I_TCP_CSUM_OK cpu_to_le16(BIT(11)) | |
266 | #define PCIE_DESC_RX_I_UDP_CSUM cpu_to_le16(BIT(10)) | |
267 | #define PCIE_DESC_RX_I_UDP_CSUM_OK cpu_to_le16(BIT(9)) | |
7533fdc0 | 268 | #define PCIE_DESC_RX_BPF cpu_to_le16(BIT(8)) |
4c352362 JK |
269 | #define PCIE_DESC_RX_EOP cpu_to_le16(BIT(7)) |
270 | #define PCIE_DESC_RX_IP4_CSUM cpu_to_le16(BIT(6)) | |
271 | #define PCIE_DESC_RX_IP4_CSUM_OK cpu_to_le16(BIT(5)) | |
272 | #define PCIE_DESC_RX_TCP_CSUM cpu_to_le16(BIT(4)) | |
273 | #define PCIE_DESC_RX_TCP_CSUM_OK cpu_to_le16(BIT(3)) | |
274 | #define PCIE_DESC_RX_UDP_CSUM cpu_to_le16(BIT(2)) | |
275 | #define PCIE_DESC_RX_UDP_CSUM_OK cpu_to_le16(BIT(1)) | |
276 | #define PCIE_DESC_RX_VLAN cpu_to_le16(BIT(0)) | |
277 | ||
278 | #define PCIE_DESC_RX_CSUM_ALL (PCIE_DESC_RX_IP4_CSUM | \ | |
279 | PCIE_DESC_RX_TCP_CSUM | \ | |
280 | PCIE_DESC_RX_UDP_CSUM | \ | |
281 | PCIE_DESC_RX_I_IP4_CSUM | \ | |
282 | PCIE_DESC_RX_I_TCP_CSUM | \ | |
283 | PCIE_DESC_RX_I_UDP_CSUM) | |
284 | #define PCIE_DESC_RX_CSUM_OK_SHIFT 1 | |
285 | #define __PCIE_DESC_RX_CSUM_ALL le16_to_cpu(PCIE_DESC_RX_CSUM_ALL) | |
286 | #define __PCIE_DESC_RX_CSUM_ALL_OK (__PCIE_DESC_RX_CSUM_ALL >> \ | |
287 | PCIE_DESC_RX_CSUM_OK_SHIFT) | |
288 | ||
289 | struct nfp_net_rx_desc { | |
290 | union { | |
291 | struct { | |
292 | u8 dma_addr_hi; /* High bits of the buf address */ | |
293 | __le16 reserved; /* Must be zero */ | |
294 | u8 meta_len_dd; /* Must be zero */ | |
295 | ||
296 | __le32 dma_addr_lo; /* Low bits of the buffer address */ | |
297 | } __packed fld; | |
298 | ||
299 | struct { | |
300 | __le16 data_len; /* Length of the frame + meta data */ | |
301 | u8 reserved; | |
302 | u8 meta_len_dd; /* Length of meta data prepended + | |
303 | * descriptor done flag. | |
304 | */ | |
305 | ||
306 | __le16 flags; /* RX flags. See @PCIE_DESC_RX_* */ | |
307 | __le16 vlan; /* VLAN if stripped */ | |
308 | } __packed rxd; | |
309 | ||
310 | __le32 vals[2]; | |
311 | }; | |
312 | }; | |
313 | ||
19d0f54e JK |
314 | #define NFP_NET_META_FIELD_MASK GENMASK(NFP_NET_META_FIELD_SIZE - 1, 0) |
315 | ||
e524a6a9 | 316 | struct nfp_meta_parsed { |
ddb98d94 JK |
317 | u8 hash_type; |
318 | u8 csum_type; | |
e524a6a9 JK |
319 | u32 hash; |
320 | u32 mark; | |
91bf82ca | 321 | u32 portid; |
ddb98d94 | 322 | __wsum csum; |
e524a6a9 JK |
323 | }; |
324 | ||
4c352362 JK |
325 | struct nfp_net_rx_hash { |
326 | __be32 hash_type; | |
327 | __be32 hash; | |
328 | }; | |
329 | ||
330 | /** | |
331 | * struct nfp_net_rx_buf - software RX buffer descriptor | |
c0f031bc | 332 | * @frag: page fragment buffer |
4c352362 JK |
333 | * @dma_addr: DMA mapping address of the buffer |
334 | */ | |
335 | struct nfp_net_rx_buf { | |
c0f031bc | 336 | void *frag; |
4c352362 JK |
337 | dma_addr_t dma_addr; |
338 | }; | |
339 | ||
340 | /** | |
341 | * struct nfp_net_rx_ring - RX ring structure | |
342 | * @r_vec: Back pointer to ring vector structure | |
343 | * @cnt: Size of the queue in number of descriptors | |
344 | * @wr_p: FL/RX ring write pointer (free running) | |
345 | * @rd_p: FL/RX ring read pointer (free running) | |
346 | * @idx: Ring index from Linux's perspective | |
347 | * @fl_qcidx: Queue Controller Peripheral (QCP) queue index for the freelist | |
4c352362 | 348 | * @qcp_fl: Pointer to base of the QCP freelist queue |
4c352362 JK |
349 | * @rxbufs: Array of transmitted FL/RX buffers |
350 | * @rxds: Virtual address of FL/RX ring in host memory | |
351 | * @dma: DMA address of the FL/RX ring | |
352 | * @size: Size, in bytes, of the FL/RX ring (needed to free) | |
353 | */ | |
354 | struct nfp_net_rx_ring { | |
355 | struct nfp_net_r_vector *r_vec; | |
356 | ||
357 | u32 cnt; | |
358 | u32 wr_p; | |
359 | u32 rd_p; | |
360 | ||
83d08a1d | 361 | u32 idx; |
4c352362 JK |
362 | |
363 | int fl_qcidx; | |
4c352362 | 364 | u8 __iomem *qcp_fl; |
4c352362 JK |
365 | |
366 | struct nfp_net_rx_buf *rxbufs; | |
367 | struct nfp_net_rx_desc *rxds; | |
368 | ||
369 | dma_addr_t dma; | |
370 | unsigned int size; | |
371 | } ____cacheline_aligned; | |
372 | ||
373 | /** | |
374 | * struct nfp_net_r_vector - Per ring interrupt vector configuration | |
375 | * @nfp_net: Backpointer to nfp_net structure | |
376 | * @napi: NAPI structure for this ring vec | |
377 | * @tx_ring: Pointer to TX ring | |
378 | * @rx_ring: Pointer to RX ring | |
ecd63a02 | 379 | * @xdp_ring: Pointer to an extra TX ring for XDP |
fdace6c2 | 380 | * @irq_entry: MSI-X table entry (use for talking to the device) |
4c352362 JK |
381 | * @rx_sync: Seqlock for atomic updates of RX stats |
382 | * @rx_pkts: Number of received packets | |
383 | * @rx_bytes: Number of received bytes | |
384 | * @rx_drops: Number of packets dropped on RX due to lack of resources | |
385 | * @hw_csum_rx_ok: Counter of packets where the HW checksum was OK | |
386 | * @hw_csum_rx_inner_ok: Counter of packets where the inner HW checksum was OK | |
387 | * @hw_csum_rx_error: Counter of packets with bad checksums | |
388 | * @tx_sync: Seqlock for atomic updates of TX stats | |
389 | * @tx_pkts: Number of Transmitted packets | |
390 | * @tx_bytes: Number of Transmitted bytes | |
391 | * @hw_csum_tx: Counter of packets with TX checksum offload requested | |
392 | * @hw_csum_tx_inner: Counter of inner TX checksum offload requests | |
393 | * @tx_gather: Counter of packets with Gather DMA | |
394 | * @tx_lso: Counter of LSO packets sent | |
395 | * @tx_errors: How many TX errors were encountered | |
396 | * @tx_busy: How often was TX busy (no space)? | |
fdace6c2 | 397 | * @irq_vector: Interrupt vector number (use for talking to the OS) |
4c352362 JK |
398 | * @handler: Interrupt handler for this ring vector |
399 | * @name: Name of the interrupt vector | |
400 | * @affinity_mask: SMP affinity mask for this vector | |
401 | * | |
402 | * This structure ties RX and TX rings to interrupt vectors and a NAPI | |
403 | * context. This currently only supports one RX and TX ring per | |
404 | * interrupt vector but might be extended in the future to allow | |
405 | * association of multiple rings per vector. | |
406 | */ | |
407 | struct nfp_net_r_vector { | |
408 | struct nfp_net *nfp_net; | |
77ece8d5 JK |
409 | union { |
410 | struct napi_struct napi; | |
411 | struct { | |
412 | struct tasklet_struct tasklet; | |
413 | struct sk_buff_head queue; | |
414 | struct spinlock lock; | |
415 | }; | |
416 | }; | |
4c352362 JK |
417 | |
418 | struct nfp_net_tx_ring *tx_ring; | |
419 | struct nfp_net_rx_ring *rx_ring; | |
420 | ||
fdace6c2 | 421 | u16 irq_entry; |
4c352362 JK |
422 | |
423 | struct u64_stats_sync rx_sync; | |
424 | u64 rx_pkts; | |
425 | u64 rx_bytes; | |
426 | u64 rx_drops; | |
427 | u64 hw_csum_rx_ok; | |
428 | u64 hw_csum_rx_inner_ok; | |
429 | u64 hw_csum_rx_error; | |
430 | ||
ecd63a02 JK |
431 | struct nfp_net_tx_ring *xdp_ring; |
432 | ||
4c352362 JK |
433 | struct u64_stats_sync tx_sync; |
434 | u64 tx_pkts; | |
435 | u64 tx_bytes; | |
436 | u64 hw_csum_tx; | |
437 | u64 hw_csum_tx_inner; | |
438 | u64 tx_gather; | |
439 | u64 tx_lso; | |
440 | u64 tx_errors; | |
441 | u64 tx_busy; | |
442 | ||
fdace6c2 | 443 | u32 irq_vector; |
4c352362 JK |
444 | irq_handler_t handler; |
445 | char name[IFNAMSIZ + 8]; | |
446 | cpumask_t affinity_mask; | |
447 | } ____cacheline_aligned; | |
448 | ||
449 | /* Firmware version as it is written in the 32bit value in the BAR */ | |
450 | struct nfp_net_fw_version { | |
451 | u8 minor; | |
452 | u8 major; | |
453 | u8 class; | |
454 | u8 resv; | |
455 | } __packed; | |
456 | ||
457 | static inline bool nfp_net_fw_ver_eq(struct nfp_net_fw_version *fw_ver, | |
458 | u8 resv, u8 class, u8 major, u8 minor) | |
459 | { | |
460 | return fw_ver->resv == resv && | |
461 | fw_ver->class == class && | |
462 | fw_ver->major == major && | |
463 | fw_ver->minor == minor; | |
464 | } | |
465 | ||
66860beb JK |
466 | struct nfp_stat_pair { |
467 | u64 pkts; | |
468 | u64 bytes; | |
469 | }; | |
470 | ||
4c352362 | 471 | /** |
79c12a75 | 472 | * struct nfp_net_dp - NFP network device datapath data structure |
fa43d2a8 | 473 | * @dev: Backpointer to struct device |
79c12a75 JK |
474 | * @netdev: Backpointer to net_device structure |
475 | * @is_vf: Is the driver attached to a VF? | |
7533fdc0 | 476 | * @bpf_offload_skip_sw: Offloaded BPF program will not be rerun by cls_bpf |
6d677075 | 477 | * @bpf_offload_xdp: Offloaded BPF program is XDP |
b9dcf88a | 478 | * @chained_metadata_format: Firemware will use new metadata format |
c487e6b1 | 479 | * @rx_dma_dir: Mapping direction for RX buffers |
6fe0c3b4 | 480 | * @rx_dma_off: Offset at which DMA packets (for XDP headroom) |
97717aca | 481 | * @rx_offset: Offset in the RX buffers where packet data starts |
79c12a75 JK |
482 | * @ctrl: Local copy of the control register/word. |
483 | * @fl_bufsz: Currently configured size of the freelist buffers | |
ecd63a02 | 484 | * @xdp_prog: Installed XDP program |
79c12a75 JK |
485 | * @tx_rings: Array of pre-allocated TX ring structures |
486 | * @rx_rings: Array of pre-allocated RX ring structures | |
d2b84397 | 487 | * @ctrl_bar: Pointer to mapped control BAR |
79c12a75 JK |
488 | * |
489 | * @txd_cnt: Size of the TX ring in number of descriptors | |
490 | * @rxd_cnt: Size of the RX ring in number of descriptors | |
491 | * @num_r_vecs: Number of used ring vectors | |
492 | * @num_tx_rings: Currently configured number of TX rings | |
493 | * @num_stack_tx_rings: Number of TX rings used by the stack (not XDP) | |
494 | * @num_rx_rings: Currently configured number of RX rings | |
76e1e1a8 | 495 | * @mtu: Device MTU |
79c12a75 JK |
496 | */ |
497 | struct nfp_net_dp { | |
498 | struct device *dev; | |
499 | struct net_device *netdev; | |
500 | ||
c487e6b1 JK |
501 | u8 is_vf:1; |
502 | u8 bpf_offload_skip_sw:1; | |
503 | u8 bpf_offload_xdp:1; | |
504 | u8 chained_metadata_format:1; | |
505 | ||
506 | u8 rx_dma_dir; | |
97717aca JK |
507 | u8 rx_offset; |
508 | ||
dbf637ff JK |
509 | u32 rx_dma_off; |
510 | ||
79c12a75 JK |
511 | u32 ctrl; |
512 | u32 fl_bufsz; | |
513 | ||
79c12a75 JK |
514 | struct bpf_prog *xdp_prog; |
515 | ||
516 | struct nfp_net_tx_ring *tx_rings; | |
517 | struct nfp_net_rx_ring *rx_rings; | |
518 | ||
d2b84397 JK |
519 | u8 __iomem *ctrl_bar; |
520 | ||
79c12a75 JK |
521 | /* Cold data follows */ |
522 | ||
523 | unsigned int txd_cnt; | |
524 | unsigned int rxd_cnt; | |
525 | ||
526 | unsigned int num_r_vecs; | |
527 | ||
528 | unsigned int num_tx_rings; | |
529 | unsigned int num_stack_tx_rings; | |
530 | unsigned int num_rx_rings; | |
76e1e1a8 JK |
531 | |
532 | unsigned int mtu; | |
79c12a75 JK |
533 | }; |
534 | ||
535 | /** | |
536 | * struct nfp_net - NFP network device structure | |
537 | * @dp: Datapath structure | |
538 | * @fw_ver: Firmware version | |
4c352362 JK |
539 | * @cap: Capabilities advertised by the Firmware |
540 | * @max_mtu: Maximum support MTU advertised by the Firmware | |
9ff304bf | 541 | * @rss_hfunc: RSS selected hash function |
4c352362 JK |
542 | * @rss_cfg: RSS configuration |
543 | * @rss_key: RSS secret key | |
544 | * @rss_itbl: RSS indirection table | |
9f82fca9 | 545 | * @xdp_flags: Flags with which XDP prog was loaded |
6a8ef542 | 546 | * @xdp_prog: XDP prog (for ctrl path, both DRV and HW modes) |
79c12a75 | 547 | * @max_r_vecs: Number of allocated interrupt vectors for RX/TX |
4c352362 JK |
548 | * @max_tx_rings: Maximum number of TX rings supported by the Firmware |
549 | * @max_rx_rings: Maximum number of RX rings supported by the Firmware | |
4c352362 JK |
550 | * @r_vecs: Pre-allocated array of ring vectors |
551 | * @irq_entries: Pre-allocated array of MSI-X entries | |
552 | * @lsc_handler: Handler for Link State Change interrupt | |
553 | * @lsc_name: Name for Link State Change interrupt | |
554 | * @exn_handler: Handler for Exception interrupt | |
555 | * @exn_name: Name for Exception interrupt | |
556 | * @shared_handler: Handler for shared interrupts | |
557 | * @shared_name: Name for shared interrupt | |
558 | * @me_freq_mhz: ME clock_freq (MHz) | |
559 | * @reconfig_lock: Protects HW reconfiguration request regs/machinery | |
3d780b92 JK |
560 | * @reconfig_posted: Pending reconfig bits coming from async sources |
561 | * @reconfig_timer_active: Timer for reading reconfiguration results is pending | |
562 | * @reconfig_sync_present: Some thread is performing synchronous reconfig | |
563 | * @reconfig_timer: Timer for async reading of reconfig results | |
4c352362 | 564 | * @link_up: Is the link up? |
cee42951 | 565 | * @link_status_lock: Protects @link_* and ensures atomicity with BAR reading |
4c352362 JK |
566 | * @rx_coalesce_usecs: RX interrupt moderation usecs delay parameter |
567 | * @rx_coalesce_max_frames: RX interrupt moderation frame count parameter | |
568 | * @tx_coalesce_usecs: TX interrupt moderation usecs delay parameter | |
569 | * @tx_coalesce_max_frames: TX interrupt moderation frame count parameter | |
570 | * @vxlan_ports: VXLAN ports for RX inner csum offload communicated to HW | |
571 | * @vxlan_usecnt: IPv4/IPv6 VXLAN port use counts | |
572 | * @qcp_cfg: Pointer to QCP queue used for configuration notification | |
4c352362 JK |
573 | * @tx_bar: Pointer to mapped TX queues |
574 | * @rx_bar: Pointer to mapped FL/RX queues | |
575 | * @debugfs_dir: Device directory in debugfs | |
af623682 | 576 | * @ethtool_dump_flag: Ethtool dump flag |
d4e7f092 | 577 | * @vnic_list: Entry on device vNIC list |
fa43d2a8 | 578 | * @pdev: Backpointer to PCI device |
7ac9ebd5 | 579 | * @app: APP handle if available |
eb488c26 | 580 | * @port: Pointer to nfp_port structure if vNIC is a port |
c66a9cf4 | 581 | * @app_priv: APP private data for this vNIC |
4c352362 JK |
582 | */ |
583 | struct nfp_net { | |
79c12a75 | 584 | struct nfp_net_dp dp; |
73725d9d | 585 | |
4c352362 | 586 | struct nfp_net_fw_version fw_ver; |
79c12a75 | 587 | |
4c352362 JK |
588 | u32 cap; |
589 | u32 max_mtu; | |
590 | ||
9ff304bf | 591 | u8 rss_hfunc; |
4c352362 JK |
592 | u32 rss_cfg; |
593 | u8 rss_key[NFP_NET_CFG_RSS_KEY_SZ]; | |
594 | u8 rss_itbl[NFP_NET_CFG_RSS_ITBL_SZ]; | |
595 | ||
9f82fca9 | 596 | u32 xdp_flags; |
6a8ef542 | 597 | struct bpf_prog *xdp_prog; |
9f82fca9 | 598 | |
a4b562bb JK |
599 | unsigned int max_tx_rings; |
600 | unsigned int max_rx_rings; | |
4c352362 | 601 | |
4c352362 JK |
602 | int stride_tx; |
603 | int stride_rx; | |
604 | ||
b33ae997 | 605 | unsigned int max_r_vecs; |
23a4e389 JK |
606 | struct nfp_net_r_vector r_vecs[NFP_NET_MAX_R_VECS]; |
607 | struct msix_entry irq_entries[NFP_NET_MAX_IRQS]; | |
4c352362 JK |
608 | |
609 | irq_handler_t lsc_handler; | |
610 | char lsc_name[IFNAMSIZ + 8]; | |
611 | ||
612 | irq_handler_t exn_handler; | |
613 | char exn_name[IFNAMSIZ + 8]; | |
614 | ||
615 | irq_handler_t shared_handler; | |
616 | char shared_name[IFNAMSIZ + 8]; | |
617 | ||
618 | u32 me_freq_mhz; | |
619 | ||
620 | bool link_up; | |
621 | spinlock_t link_status_lock; | |
622 | ||
623 | spinlock_t reconfig_lock; | |
3d780b92 JK |
624 | u32 reconfig_posted; |
625 | bool reconfig_timer_active; | |
626 | bool reconfig_sync_present; | |
627 | struct timer_list reconfig_timer; | |
4c352362 JK |
628 | |
629 | u32 rx_coalesce_usecs; | |
630 | u32 rx_coalesce_max_frames; | |
631 | u32 tx_coalesce_usecs; | |
632 | u32 tx_coalesce_max_frames; | |
633 | ||
634 | __be16 vxlan_ports[NFP_NET_N_VXLAN_PORTS]; | |
635 | u8 vxlan_usecnt[NFP_NET_N_VXLAN_PORTS]; | |
636 | ||
637 | u8 __iomem *qcp_cfg; | |
638 | ||
4c352362 JK |
639 | u8 __iomem *tx_bar; |
640 | u8 __iomem *rx_bar; | |
641 | ||
642 | struct dentry *debugfs_dir; | |
af623682 | 643 | u32 ethtool_dump_flag; |
63461a02 | 644 | |
d4e7f092 | 645 | struct list_head vnic_list; |
bd5ca062 | 646 | |
fa43d2a8 | 647 | struct pci_dev *pdev; |
7ac9ebd5 | 648 | struct nfp_app *app; |
47465aed | 649 | |
eb488c26 | 650 | struct nfp_port *port; |
c66a9cf4 JK |
651 | |
652 | void *app_priv; | |
4c352362 JK |
653 | }; |
654 | ||
655 | /* Functions to read/write from/to a BAR | |
656 | * Performs any endian conversion necessary. | |
657 | */ | |
7533fdc0 JK |
658 | static inline u16 nn_readb(struct nfp_net *nn, int off) |
659 | { | |
d2b84397 | 660 | return readb(nn->dp.ctrl_bar + off); |
7533fdc0 JK |
661 | } |
662 | ||
4c352362 JK |
663 | static inline void nn_writeb(struct nfp_net *nn, int off, u8 val) |
664 | { | |
d2b84397 | 665 | writeb(val, nn->dp.ctrl_bar + off); |
4c352362 JK |
666 | } |
667 | ||
7533fdc0 JK |
668 | static inline u16 nn_readw(struct nfp_net *nn, int off) |
669 | { | |
d2b84397 | 670 | return readw(nn->dp.ctrl_bar + off); |
7533fdc0 JK |
671 | } |
672 | ||
673 | static inline void nn_writew(struct nfp_net *nn, int off, u16 val) | |
674 | { | |
d2b84397 | 675 | writew(val, nn->dp.ctrl_bar + off); |
7533fdc0 | 676 | } |
4c352362 JK |
677 | |
678 | static inline u32 nn_readl(struct nfp_net *nn, int off) | |
679 | { | |
d2b84397 | 680 | return readl(nn->dp.ctrl_bar + off); |
4c352362 JK |
681 | } |
682 | ||
683 | static inline void nn_writel(struct nfp_net *nn, int off, u32 val) | |
684 | { | |
d2b84397 | 685 | writel(val, nn->dp.ctrl_bar + off); |
4c352362 JK |
686 | } |
687 | ||
688 | static inline u64 nn_readq(struct nfp_net *nn, int off) | |
689 | { | |
d2b84397 | 690 | return readq(nn->dp.ctrl_bar + off); |
4c352362 JK |
691 | } |
692 | ||
693 | static inline void nn_writeq(struct nfp_net *nn, int off, u64 val) | |
694 | { | |
d2b84397 | 695 | writeq(val, nn->dp.ctrl_bar + off); |
4c352362 JK |
696 | } |
697 | ||
698 | /* Flush posted PCI writes by reading something without side effects */ | |
699 | static inline void nn_pci_flush(struct nfp_net *nn) | |
700 | { | |
701 | nn_readl(nn, NFP_NET_CFG_VERSION); | |
702 | } | |
703 | ||
704 | /* Queue Controller Peripheral access functions and definitions. | |
705 | * | |
706 | * Some of the BARs of the NFP are mapped to portions of the Queue | |
707 | * Controller Peripheral (QCP) address space on the NFP. A QCP queue | |
708 | * has a read and a write pointer (as well as a size and flags, | |
709 | * indicating overflow etc). The QCP offers a number of different | |
710 | * operation on queue pointers, but here we only offer function to | |
711 | * either add to a pointer or to read the pointer value. | |
712 | */ | |
713 | #define NFP_QCP_QUEUE_ADDR_SZ 0x800 | |
73e253f0 | 714 | #define NFP_QCP_QUEUE_AREA_SZ 0x80000 |
4c352362 JK |
715 | #define NFP_QCP_QUEUE_OFF(_x) ((_x) * NFP_QCP_QUEUE_ADDR_SZ) |
716 | #define NFP_QCP_QUEUE_ADD_RPTR 0x0000 | |
717 | #define NFP_QCP_QUEUE_ADD_WPTR 0x0004 | |
718 | #define NFP_QCP_QUEUE_STS_LO 0x0008 | |
719 | #define NFP_QCP_QUEUE_STS_LO_READPTR_mask 0x3ffff | |
720 | #define NFP_QCP_QUEUE_STS_HI 0x000c | |
721 | #define NFP_QCP_QUEUE_STS_HI_WRITEPTR_mask 0x3ffff | |
722 | ||
416db5c1 | 723 | /* The offset of a QCP queues in the PCIe Target */ |
4c352362 JK |
724 | #define NFP_PCIE_QUEUE(_q) (0x80000 + (NFP_QCP_QUEUE_ADDR_SZ * ((_q) & 0xff))) |
725 | ||
726 | /* nfp_qcp_ptr - Read or Write Pointer of a queue */ | |
727 | enum nfp_qcp_ptr { | |
728 | NFP_QCP_READ_PTR = 0, | |
729 | NFP_QCP_WRITE_PTR | |
730 | }; | |
731 | ||
732 | /* There appear to be an *undocumented* upper limit on the value which | |
733 | * one can add to a queue and that value is either 0x3f or 0x7f. We | |
734 | * go with 0x3f as a conservative measure. | |
735 | */ | |
736 | #define NFP_QCP_MAX_ADD 0x3f | |
737 | ||
738 | static inline void _nfp_qcp_ptr_add(u8 __iomem *q, | |
739 | enum nfp_qcp_ptr ptr, u32 val) | |
740 | { | |
741 | u32 off; | |
742 | ||
743 | if (ptr == NFP_QCP_READ_PTR) | |
744 | off = NFP_QCP_QUEUE_ADD_RPTR; | |
745 | else | |
746 | off = NFP_QCP_QUEUE_ADD_WPTR; | |
747 | ||
748 | while (val > NFP_QCP_MAX_ADD) { | |
749 | writel(NFP_QCP_MAX_ADD, q + off); | |
750 | val -= NFP_QCP_MAX_ADD; | |
751 | } | |
752 | ||
753 | writel(val, q + off); | |
754 | } | |
755 | ||
756 | /** | |
757 | * nfp_qcp_rd_ptr_add() - Add the value to the read pointer of a queue | |
758 | * | |
759 | * @q: Base address for queue structure | |
760 | * @val: Value to add to the queue pointer | |
761 | * | |
762 | * If @val is greater than @NFP_QCP_MAX_ADD multiple writes are performed. | |
763 | */ | |
764 | static inline void nfp_qcp_rd_ptr_add(u8 __iomem *q, u32 val) | |
765 | { | |
766 | _nfp_qcp_ptr_add(q, NFP_QCP_READ_PTR, val); | |
767 | } | |
768 | ||
769 | /** | |
770 | * nfp_qcp_wr_ptr_add() - Add the value to the write pointer of a queue | |
771 | * | |
772 | * @q: Base address for queue structure | |
773 | * @val: Value to add to the queue pointer | |
774 | * | |
775 | * If @val is greater than @NFP_QCP_MAX_ADD multiple writes are performed. | |
776 | */ | |
777 | static inline void nfp_qcp_wr_ptr_add(u8 __iomem *q, u32 val) | |
778 | { | |
779 | _nfp_qcp_ptr_add(q, NFP_QCP_WRITE_PTR, val); | |
780 | } | |
781 | ||
782 | static inline u32 _nfp_qcp_read(u8 __iomem *q, enum nfp_qcp_ptr ptr) | |
783 | { | |
784 | u32 off; | |
785 | u32 val; | |
786 | ||
787 | if (ptr == NFP_QCP_READ_PTR) | |
788 | off = NFP_QCP_QUEUE_STS_LO; | |
789 | else | |
790 | off = NFP_QCP_QUEUE_STS_HI; | |
791 | ||
792 | val = readl(q + off); | |
793 | ||
794 | if (ptr == NFP_QCP_READ_PTR) | |
795 | return val & NFP_QCP_QUEUE_STS_LO_READPTR_mask; | |
796 | else | |
797 | return val & NFP_QCP_QUEUE_STS_HI_WRITEPTR_mask; | |
798 | } | |
799 | ||
800 | /** | |
801 | * nfp_qcp_rd_ptr_read() - Read the current read pointer value for a queue | |
802 | * @q: Base address for queue structure | |
803 | * | |
804 | * Return: Value read. | |
805 | */ | |
806 | static inline u32 nfp_qcp_rd_ptr_read(u8 __iomem *q) | |
807 | { | |
808 | return _nfp_qcp_read(q, NFP_QCP_READ_PTR); | |
809 | } | |
810 | ||
811 | /** | |
812 | * nfp_qcp_wr_ptr_read() - Read the current write pointer value for a queue | |
813 | * @q: Base address for queue structure | |
814 | * | |
815 | * Return: Value read. | |
816 | */ | |
817 | static inline u32 nfp_qcp_wr_ptr_read(u8 __iomem *q) | |
818 | { | |
819 | return _nfp_qcp_read(q, NFP_QCP_WRITE_PTR); | |
820 | } | |
821 | ||
042f4ba6 JK |
822 | static inline bool nfp_net_is_data_vnic(struct nfp_net *nn) |
823 | { | |
824 | WARN_ON_ONCE(!nn->dp.netdev && nn->port); | |
825 | return !!nn->dp.netdev; | |
826 | } | |
827 | ||
828 | static inline bool nfp_net_running(struct nfp_net *nn) | |
829 | { | |
830 | return nn->dp.ctrl & NFP_NET_CFG_CTRL_ENABLE; | |
831 | } | |
832 | ||
77ece8d5 JK |
833 | static inline const char *nfp_net_name(struct nfp_net *nn) |
834 | { | |
835 | return nn->dp.netdev ? nn->dp.netdev->name : "ctrl"; | |
836 | } | |
837 | ||
4c352362 | 838 | /* Globals */ |
2633beb9 | 839 | extern const char nfp_driver_version[]; |
4c352362 | 840 | |
eb488c26 JK |
841 | extern const struct net_device_ops nfp_net_netdev_ops; |
842 | ||
843 | static inline bool nfp_netdev_is_nfp_net(struct net_device *netdev) | |
844 | { | |
845 | return netdev->netdev_ops == &nfp_net_netdev_ops; | |
846 | } | |
847 | ||
4c352362 JK |
848 | /* Prototypes */ |
849 | void nfp_net_get_fw_version(struct nfp_net_fw_version *fw_ver, | |
850 | void __iomem *ctrl_bar); | |
851 | ||
a4b562bb | 852 | struct nfp_net * |
a7b1ad08 | 853 | nfp_net_alloc(struct pci_dev *pdev, bool needs_netdev, |
beba69ca JK |
854 | unsigned int max_tx_rings, unsigned int max_rx_rings); |
855 | void nfp_net_free(struct nfp_net *nn); | |
856 | ||
857 | int nfp_net_init(struct nfp_net *nn); | |
858 | void nfp_net_clean(struct nfp_net *nn); | |
859 | ||
77ece8d5 JK |
860 | int nfp_ctrl_open(struct nfp_net *nn); |
861 | void nfp_ctrl_close(struct nfp_net *nn); | |
862 | ||
4c352362 JK |
863 | void nfp_net_set_ethtool_ops(struct net_device *netdev); |
864 | void nfp_net_info(struct nfp_net *nn); | |
865 | int nfp_net_reconfig(struct nfp_net *nn, u32 update); | |
9ff304bf | 866 | unsigned int nfp_net_rss_key_sz(struct nfp_net *nn); |
4c352362 JK |
867 | void nfp_net_rss_write_itbl(struct nfp_net *nn); |
868 | void nfp_net_rss_write_key(struct nfp_net *nn); | |
869 | void nfp_net_coalesce_write_cfg(struct nfp_net *nn); | |
fdace6c2 JK |
870 | |
871 | unsigned int | |
872 | nfp_net_irqs_alloc(struct pci_dev *pdev, struct msix_entry *irq_entries, | |
873 | unsigned int min_irqs, unsigned int want_irqs); | |
874 | void nfp_net_irqs_disable(struct pci_dev *pdev); | |
875 | void | |
876 | nfp_net_irqs_assign(struct nfp_net *nn, struct msix_entry *irq_entries, | |
877 | unsigned int n); | |
783496b0 JK |
878 | |
879 | struct nfp_net_dp *nfp_net_clone_dp(struct nfp_net *nn); | |
d957c0f7 JK |
880 | int nfp_net_ring_reconfig(struct nfp_net *nn, struct nfp_net_dp *new, |
881 | struct netlink_ext_ack *extack); | |
4c352362 | 882 | |
2633beb9 | 883 | #ifdef CONFIG_NFP_DEBUG |
4c352362 JK |
884 | void nfp_net_debugfs_create(void); |
885 | void nfp_net_debugfs_destroy(void); | |
6f1cd5ca | 886 | struct dentry *nfp_net_debugfs_device_add(struct pci_dev *pdev); |
d4e7f092 | 887 | void nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir, int id); |
6f1cd5ca | 888 | void nfp_net_debugfs_dir_clean(struct dentry **dir); |
4c352362 JK |
889 | #else |
890 | static inline void nfp_net_debugfs_create(void) | |
891 | { | |
892 | } | |
893 | ||
894 | static inline void nfp_net_debugfs_destroy(void) | |
895 | { | |
896 | } | |
897 | ||
6f1cd5ca | 898 | static inline struct dentry *nfp_net_debugfs_device_add(struct pci_dev *pdev) |
4c352362 | 899 | { |
6f1cd5ca | 900 | return NULL; |
4c352362 JK |
901 | } |
902 | ||
6f1cd5ca | 903 | static inline void |
d4e7f092 | 904 | nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir, int id) |
6f1cd5ca JK |
905 | { |
906 | } | |
907 | ||
908 | static inline void nfp_net_debugfs_dir_clean(struct dentry **dir) | |
4c352362 JK |
909 | { |
910 | } | |
2633beb9 | 911 | #endif /* CONFIG_NFP_DEBUG */ |
4c352362 JK |
912 | |
913 | #endif /* _NFP_NET_H_ */ |