1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2019, Intel Corporation. */
3
4 #include "ice_common.h"
5 #include "ice_flow.h"
6 #include <net/gre.h>
7
8 /* Describe properties of a protocol header field */
9 struct ice_flow_field_info {
10 enum ice_flow_seg_hdr hdr;
11 s16 off; /* Offset from start of a protocol header, in bits */
12 u16 size; /* Size of fields in bits */
13 u16 mask; /* 16-bit mask for field */
14 };
15
16 #define ICE_FLOW_FLD_INFO(_hdr, _offset_bytes, _size_bytes) { \
17 .hdr = _hdr, \
18 .off = (_offset_bytes) * BITS_PER_BYTE, \
19 .size = (_size_bytes) * BITS_PER_BYTE, \
20 .mask = 0, \
21 }
22
23 #define ICE_FLOW_FLD_INFO_MSK(_hdr, _offset_bytes, _size_bytes, _mask) { \
24 .hdr = _hdr, \
25 .off = (_offset_bytes) * BITS_PER_BYTE, \
26 .size = (_size_bytes) * BITS_PER_BYTE, \
27 .mask = _mask, \
28 }
29
30 /* Table containing properties of supported protocol header fields */
31 static const
32 struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = {
33 /* Ether */
34 /* ICE_FLOW_FIELD_IDX_ETH_DA */
35 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 0, ETH_ALEN),
36 /* ICE_FLOW_FIELD_IDX_ETH_SA */
37 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, ETH_ALEN, ETH_ALEN),
38 /* ICE_FLOW_FIELD_IDX_S_VLAN */
39 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 12, sizeof(__be16)),
40 /* ICE_FLOW_FIELD_IDX_C_VLAN */
41 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 14, sizeof(__be16)),
42 /* ICE_FLOW_FIELD_IDX_ETH_TYPE */
43 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 0, sizeof(__be16)),
44 /* IPv4 / IPv6 */
45 /* ICE_FLOW_FIELD_IDX_IPV4_DSCP */
46 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_IPV4, 0, 1, 0x00fc),
47 /* ICE_FLOW_FIELD_IDX_IPV6_DSCP */
48 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_IPV6, 0, 1, 0x0ff0),
49 /* ICE_FLOW_FIELD_IDX_IPV4_TTL */
50 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 8, 1, 0xff00),
51 /* ICE_FLOW_FIELD_IDX_IPV4_PROT */
52 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 8, 1, 0x00ff),
53 /* ICE_FLOW_FIELD_IDX_IPV6_TTL */
54 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 6, 1, 0x00ff),
55 /* ICE_FLOW_FIELD_IDX_IPV6_PROT */
56 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 6, 1, 0xff00),
57 /* ICE_FLOW_FIELD_IDX_IPV4_SA */
58 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 12, sizeof(struct in_addr)),
59 /* ICE_FLOW_FIELD_IDX_IPV4_DA */
60 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 16, sizeof(struct in_addr)),
61 /* ICE_FLOW_FIELD_IDX_IPV6_SA */
62 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, sizeof(struct in6_addr)),
63 /* ICE_FLOW_FIELD_IDX_IPV6_DA */
64 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, sizeof(struct in6_addr)),
65 /* Transport */
66 /* ICE_FLOW_FIELD_IDX_TCP_SRC_PORT */
67 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 0, sizeof(__be16)),
68 /* ICE_FLOW_FIELD_IDX_TCP_DST_PORT */
69 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 2, sizeof(__be16)),
70 /* ICE_FLOW_FIELD_IDX_UDP_SRC_PORT */
71 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 0, sizeof(__be16)),
72 /* ICE_FLOW_FIELD_IDX_UDP_DST_PORT */
73 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 2, sizeof(__be16)),
74 /* ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT */
75 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 0, sizeof(__be16)),
76 /* ICE_FLOW_FIELD_IDX_SCTP_DST_PORT */
77 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 2, sizeof(__be16)),
78 /* ICE_FLOW_FIELD_IDX_TCP_FLAGS */
79 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 13, 1),
80 /* ARP */
81 /* ICE_FLOW_FIELD_IDX_ARP_SIP */
82 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 14, sizeof(struct in_addr)),
83 /* ICE_FLOW_FIELD_IDX_ARP_DIP */
84 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 24, sizeof(struct in_addr)),
85 /* ICE_FLOW_FIELD_IDX_ARP_SHA */
86 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 8, ETH_ALEN),
87 /* ICE_FLOW_FIELD_IDX_ARP_DHA */
88 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 18, ETH_ALEN),
89 /* ICE_FLOW_FIELD_IDX_ARP_OP */
90 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 6, sizeof(__be16)),
91 /* ICMP */
92 /* ICE_FLOW_FIELD_IDX_ICMP_TYPE */
93 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 0, 1),
94 /* ICE_FLOW_FIELD_IDX_ICMP_CODE */
95 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 1, 1),
96 /* GRE */
97 /* ICE_FLOW_FIELD_IDX_GRE_KEYID */
98 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GRE, 12,
99 sizeof_field(struct gre_full_hdr, key)),
100 /* GTP */
101 /* ICE_FLOW_FIELD_IDX_GTPC_TEID */
102 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPC_TEID, 12, sizeof(__be32)),
103 /* ICE_FLOW_FIELD_IDX_GTPU_IP_TEID */
104 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_IP, 12, sizeof(__be32)),
105 /* ICE_FLOW_FIELD_IDX_GTPU_EH_TEID */
106 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_EH, 12, sizeof(__be32)),
107 /* ICE_FLOW_FIELD_IDX_GTPU_EH_QFI */
108 ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_GTPU_EH, 22, sizeof(__be16),
109 0x3f00),
110 /* ICE_FLOW_FIELD_IDX_GTPU_UP_TEID */
111 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_UP, 12, sizeof(__be32)),
112 /* ICE_FLOW_FIELD_IDX_GTPU_DWN_TEID */
113 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_DWN, 12, sizeof(__be32)),
114 /* PPPoE */
115 /* ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID */
116 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_PPPOE, 2, sizeof(__be16)),
117 /* PFCP */
118 /* ICE_FLOW_FIELD_IDX_PFCP_SEID */
119 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_PFCP_SESSION, 12, sizeof(__be64)),
120 /* L2TPv3 */
121 /* ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID */
122 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_L2TPV3, 0, sizeof(__be32)),
123 /* ESP */
124 /* ICE_FLOW_FIELD_IDX_ESP_SPI */
125 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ESP, 0, sizeof(__be32)),
126 /* AH */
127 /* ICE_FLOW_FIELD_IDX_AH_SPI */
128 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_AH, 4, sizeof(__be32)),
129 /* NAT_T_ESP */
130 /* ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI */
131 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NAT_T_ESP, 8, sizeof(__be32)),
132 };
133
134 /* Bitmaps indicating relevant packet types for a particular protocol header
135 *
136 * Packet types for packets with an Outer/First/Single MAC header
137 */
138 static const u32 ice_ptypes_mac_ofos[] = {
139 0xFDC00846, 0xBFBF7F7E, 0xF70001DF, 0xFEFDFDFB,
140 0x0000077E, 0x00000000, 0x00000000, 0x00000000,
141 0x00400000, 0x03FFF000, 0x7FFFFFE0, 0x00000000,
142 0x00000000, 0x00000000, 0x00000000, 0x00000000,
143 0x00000000, 0x00000000, 0x00000000, 0x00000000,
144 0x00000000, 0x00000000, 0x00000000, 0x00000000,
145 0x00000000, 0x00000000, 0x00000000, 0x00000000,
146 0x00000000, 0x00000000, 0x00000000, 0x00000000,
147 };
148
149 /* Packet types for packets with an Innermost/Last MAC VLAN header */
150 static const u32 ice_ptypes_macvlan_il[] = {
151 0x00000000, 0xBC000000, 0x000001DF, 0xF0000000,
152 0x0000077E, 0x00000000, 0x00000000, 0x00000000,
153 0x00000000, 0x00000000, 0x00000000, 0x00000000,
154 0x00000000, 0x00000000, 0x00000000, 0x00000000,
155 0x00000000, 0x00000000, 0x00000000, 0x00000000,
156 0x00000000, 0x00000000, 0x00000000, 0x00000000,
157 0x00000000, 0x00000000, 0x00000000, 0x00000000,
158 0x00000000, 0x00000000, 0x00000000, 0x00000000,
159 };
160
161 /* Packet types for packets with an Outer/First/Single IPv4 header, does NOT
162 * include IPv4 other PTYPEs
163 */
164 static const u32 ice_ptypes_ipv4_ofos[] = {
165 0x1DC00000, 0x04000800, 0x00000000, 0x00000000,
166 0x00000000, 0x00000155, 0x00000000, 0x00000000,
167 0x00000000, 0x000FC000, 0x00000000, 0x00000000,
168 0x00000000, 0x00000000, 0x00000000, 0x00000000,
169 0x00000000, 0x00000000, 0x00000000, 0x00000000,
170 0x00000000, 0x00000000, 0x00000000, 0x00000000,
171 0x00000000, 0x00000000, 0x00000000, 0x00000000,
172 0x00000000, 0x00000000, 0x00000000, 0x00000000,
173 };
174
175 /* Packet types for packets with an Outer/First/Single IPv4 header, includes
176 * IPv4 other PTYPEs
177 */
178 static const u32 ice_ptypes_ipv4_ofos_all[] = {
179 0x1DC00000, 0x04000800, 0x00000000, 0x00000000,
180 0x00000000, 0x00000155, 0x00000000, 0x00000000,
181 0x00000000, 0x000FC000, 0x83E0F800, 0x00000101,
182 0x00000000, 0x00000000, 0x00000000, 0x00000000,
183 0x00000000, 0x00000000, 0x00000000, 0x00000000,
184 0x00000000, 0x00000000, 0x00000000, 0x00000000,
185 0x00000000, 0x00000000, 0x00000000, 0x00000000,
186 0x00000000, 0x00000000, 0x00000000, 0x00000000,
187 };
188
189 /* Packet types for packets with an Innermost/Last IPv4 header */
190 static const u32 ice_ptypes_ipv4_il[] = {
191 0xE0000000, 0xB807700E, 0x80000003, 0xE01DC03B,
192 0x0000000E, 0x00000000, 0x00000000, 0x00000000,
193 0x00000000, 0x00000000, 0x001FF800, 0x00000000,
194 0x00000000, 0x00000000, 0x00000000, 0x00000000,
195 0x00000000, 0x00000000, 0x00000000, 0x00000000,
196 0x00000000, 0x00000000, 0x00000000, 0x00000000,
197 0x00000000, 0x00000000, 0x00000000, 0x00000000,
198 0x00000000, 0x00000000, 0x00000000, 0x00000000,
199 };
200
201 /* Packet types for packets with an Outer/First/Single IPv6 header, does NOT
202 * include IPv6 other PTYPEs
203 */
204 static const u32 ice_ptypes_ipv6_ofos[] = {
205 0x00000000, 0x00000000, 0x77000000, 0x10002000,
206 0x00000000, 0x000002AA, 0x00000000, 0x00000000,
207 0x00000000, 0x03F00000, 0x00000000, 0x00000000,
208 0x00000000, 0x00000000, 0x00000000, 0x00000000,
209 0x00000000, 0x00000000, 0x00000000, 0x00000000,
210 0x00000000, 0x00000000, 0x00000000, 0x00000000,
211 0x00000000, 0x00000000, 0x00000000, 0x00000000,
212 0x00000000, 0x00000000, 0x00000000, 0x00000000,
213 };
214
215 /* Packet types for packets with an Outer/First/Single IPv6 header, includes
216 * IPv6 other PTYPEs
217 */
218 static const u32 ice_ptypes_ipv6_ofos_all[] = {
219 0x00000000, 0x00000000, 0x77000000, 0x10002000,
220 0x00000000, 0x000002AA, 0x00000000, 0x00000000,
221 0x00080F00, 0x03F00000, 0x7C1F0000, 0x00000206,
222 0x00000000, 0x00000000, 0x00000000, 0x00000000,
223 0x00000000, 0x00000000, 0x00000000, 0x00000000,
224 0x00000000, 0x00000000, 0x00000000, 0x00000000,
225 0x00000000, 0x00000000, 0x00000000, 0x00000000,
226 0x00000000, 0x00000000, 0x00000000, 0x00000000,
227 };
228
229 /* Packet types for packets with an Innermost/Last IPv6 header */
230 static const u32 ice_ptypes_ipv6_il[] = {
231 0x00000000, 0x03B80770, 0x000001DC, 0x0EE00000,
232 0x00000770, 0x00000000, 0x00000000, 0x00000000,
233 0x00000000, 0x00000000, 0x7FE00000, 0x00000000,
234 0x00000000, 0x00000000, 0x00000000, 0x00000000,
235 0x00000000, 0x00000000, 0x00000000, 0x00000000,
236 0x00000000, 0x00000000, 0x00000000, 0x00000000,
237 0x00000000, 0x00000000, 0x00000000, 0x00000000,
238 0x00000000, 0x00000000, 0x00000000, 0x00000000,
239 };
240
241 /* Packet types for packets with an Outer/First/Single IPv4 header - no L4 */
242 static const u32 ice_ptypes_ipv4_ofos_no_l4[] = {
243 0x10C00000, 0x04000800, 0x00000000, 0x00000000,
244 0x00000000, 0x00000000, 0x00000000, 0x00000000,
245 0x00000000, 0x00000000, 0x00000000, 0x00000000,
246 0x00000000, 0x00000000, 0x00000000, 0x00000000,
247 0x00000000, 0x00000000, 0x00000000, 0x00000000,
248 0x00000000, 0x00000000, 0x00000000, 0x00000000,
249 0x00000000, 0x00000000, 0x00000000, 0x00000000,
250 0x00000000, 0x00000000, 0x00000000, 0x00000000,
251 };
252
253 /* Packet types for packets with an Outermost/First ARP header */
254 static const u32 ice_ptypes_arp_of[] = {
255 0x00000800, 0x00000000, 0x00000000, 0x00000000,
256 0x00000000, 0x00000000, 0x00000000, 0x00000000,
257 0x00000000, 0x00000000, 0x00000000, 0x00000000,
258 0x00000000, 0x00000000, 0x00000000, 0x00000000,
259 0x00000000, 0x00000000, 0x00000000, 0x00000000,
260 0x00000000, 0x00000000, 0x00000000, 0x00000000,
261 0x00000000, 0x00000000, 0x00000000, 0x00000000,
262 0x00000000, 0x00000000, 0x00000000, 0x00000000,
263 };
264
265 /* Packet types for packets with an Innermost/Last IPv4 header - no L4 */
266 static const u32 ice_ptypes_ipv4_il_no_l4[] = {
267 0x60000000, 0x18043008, 0x80000002, 0x6010c021,
268 0x00000008, 0x00000000, 0x00000000, 0x00000000,
269 0x00000000, 0x00000000, 0x00000000, 0x00000000,
270 0x00000000, 0x00000000, 0x00000000, 0x00000000,
271 0x00000000, 0x00000000, 0x00000000, 0x00000000,
272 0x00000000, 0x00000000, 0x00000000, 0x00000000,
273 0x00000000, 0x00000000, 0x00000000, 0x00000000,
274 0x00000000, 0x00000000, 0x00000000, 0x00000000,
275 };
276
277 /* Packet types for packets with an Outer/First/Single IPv6 header - no L4 */
278 static const u32 ice_ptypes_ipv6_ofos_no_l4[] = {
279 0x00000000, 0x00000000, 0x43000000, 0x10002000,
280 0x00000000, 0x00000000, 0x00000000, 0x00000000,
281 0x00000000, 0x00000000, 0x00000000, 0x00000000,
282 0x00000000, 0x00000000, 0x00000000, 0x00000000,
283 0x00000000, 0x00000000, 0x00000000, 0x00000000,
284 0x00000000, 0x00000000, 0x00000000, 0x00000000,
285 0x00000000, 0x00000000, 0x00000000, 0x00000000,
286 0x00000000, 0x00000000, 0x00000000, 0x00000000,
287 };
288
289 /* Packet types for packets with an Innermost/Last IPv6 header - no L4 */
290 static const u32 ice_ptypes_ipv6_il_no_l4[] = {
291 0x00000000, 0x02180430, 0x0000010c, 0x086010c0,
292 0x00000430, 0x00000000, 0x00000000, 0x00000000,
293 0x00000000, 0x00000000, 0x00000000, 0x00000000,
294 0x00000000, 0x00000000, 0x00000000, 0x00000000,
295 0x00000000, 0x00000000, 0x00000000, 0x00000000,
296 0x00000000, 0x00000000, 0x00000000, 0x00000000,
297 0x00000000, 0x00000000, 0x00000000, 0x00000000,
298 0x00000000, 0x00000000, 0x00000000, 0x00000000,
299 };
300
301 /* UDP Packet types for non-tunneled packets or tunneled
302 * packets with inner UDP.
303 */
304 static const u32 ice_ptypes_udp_il[] = {
305 0x81000000, 0x20204040, 0x04000010, 0x80810102,
306 0x00000040, 0x00000000, 0x00000000, 0x00000000,
307 0x00000000, 0x00410000, 0x90842000, 0x00000007,
308 0x00000000, 0x00000000, 0x00000000, 0x00000000,
309 0x00000000, 0x00000000, 0x00000000, 0x00000000,
310 0x00000000, 0x00000000, 0x00000000, 0x00000000,
311 0x00000000, 0x00000000, 0x00000000, 0x00000000,
312 0x00000000, 0x00000000, 0x00000000, 0x00000000,
313 };
314
315 /* Packet types for packets with an Innermost/Last TCP header */
316 static const u32 ice_ptypes_tcp_il[] = {
317 0x04000000, 0x80810102, 0x10000040, 0x02040408,
318 0x00000102, 0x00000000, 0x00000000, 0x00000000,
319 0x00000000, 0x00820000, 0x21084000, 0x00000000,
320 0x00000000, 0x00000000, 0x00000000, 0x00000000,
321 0x00000000, 0x00000000, 0x00000000, 0x00000000,
322 0x00000000, 0x00000000, 0x00000000, 0x00000000,
323 0x00000000, 0x00000000, 0x00000000, 0x00000000,
324 0x00000000, 0x00000000, 0x00000000, 0x00000000,
325 };
326
327 /* Packet types for packets with an Innermost/Last SCTP header */
328 static const u32 ice_ptypes_sctp_il[] = {
329 0x08000000, 0x01020204, 0x20000081, 0x04080810,
330 0x00000204, 0x00000000, 0x00000000, 0x00000000,
331 0x00000000, 0x01040000, 0x00000000, 0x00000000,
332 0x00000000, 0x00000000, 0x00000000, 0x00000000,
333 0x00000000, 0x00000000, 0x00000000, 0x00000000,
334 0x00000000, 0x00000000, 0x00000000, 0x00000000,
335 0x00000000, 0x00000000, 0x00000000, 0x00000000,
336 0x00000000, 0x00000000, 0x00000000, 0x00000000,
337 };
338
339 /* Packet types for packets with an Outermost/First ICMP header */
340 static const u32 ice_ptypes_icmp_of[] = {
341 0x10000000, 0x00000000, 0x00000000, 0x00000000,
342 0x00000000, 0x00000000, 0x00000000, 0x00000000,
343 0x00000000, 0x00000000, 0x00000000, 0x00000000,
344 0x00000000, 0x00000000, 0x00000000, 0x00000000,
345 0x00000000, 0x00000000, 0x00000000, 0x00000000,
346 0x00000000, 0x00000000, 0x00000000, 0x00000000,
347 0x00000000, 0x00000000, 0x00000000, 0x00000000,
348 0x00000000, 0x00000000, 0x00000000, 0x00000000,
349 };
350
351 /* Packet types for packets with an Innermost/Last ICMP header */
352 static const u32 ice_ptypes_icmp_il[] = {
353 0x00000000, 0x02040408, 0x40000102, 0x08101020,
354 0x00000408, 0x00000000, 0x00000000, 0x00000000,
355 0x00000000, 0x00000000, 0x42108000, 0x00000000,
356 0x00000000, 0x00000000, 0x00000000, 0x00000000,
357 0x00000000, 0x00000000, 0x00000000, 0x00000000,
358 0x00000000, 0x00000000, 0x00000000, 0x00000000,
359 0x00000000, 0x00000000, 0x00000000, 0x00000000,
360 0x00000000, 0x00000000, 0x00000000, 0x00000000,
361 };
362
363 /* Packet types for packets with an Outermost/First GRE header */
364 static const u32 ice_ptypes_gre_of[] = {
365 0x00000000, 0xBFBF7800, 0x000001DF, 0xFEFDE000,
366 0x0000017E, 0x00000000, 0x00000000, 0x00000000,
367 0x00000000, 0x00000000, 0x00000000, 0x00000000,
368 0x00000000, 0x00000000, 0x00000000, 0x00000000,
369 0x00000000, 0x00000000, 0x00000000, 0x00000000,
370 0x00000000, 0x00000000, 0x00000000, 0x00000000,
371 0x00000000, 0x00000000, 0x00000000, 0x00000000,
372 0x00000000, 0x00000000, 0x00000000, 0x00000000,
373 };
374
375 /* Packet types for packets with an Innermost/Last MAC header */
376 static const u32 ice_ptypes_mac_il[] = {
377 0x00000000, 0x00000000, 0x00000000, 0x00000000,
378 0x00000000, 0x00000000, 0x00000000, 0x00000000,
379 0x00000000, 0x00000000, 0x00000000, 0x00000000,
380 0x00000000, 0x00000000, 0x00000000, 0x00000000,
381 0x00000000, 0x00000000, 0x00000000, 0x00000000,
382 0x00000000, 0x00000000, 0x00000000, 0x00000000,
383 0x00000000, 0x00000000, 0x00000000, 0x00000000,
384 0x00000000, 0x00000000, 0x00000000, 0x00000000,
385 };
386
387 /* Packet types for GTPC */
388 static const u32 ice_ptypes_gtpc[] = {
389 0x00000000, 0x00000000, 0x00000000, 0x00000000,
390 0x00000000, 0x00000000, 0x00000000, 0x00000000,
391 0x00000000, 0x00000000, 0x00000180, 0x00000000,
392 0x00000000, 0x00000000, 0x00000000, 0x00000000,
393 0x00000000, 0x00000000, 0x00000000, 0x00000000,
394 0x00000000, 0x00000000, 0x00000000, 0x00000000,
395 0x00000000, 0x00000000, 0x00000000, 0x00000000,
396 0x00000000, 0x00000000, 0x00000000, 0x00000000,
397 };
398
399 /* Packet types for GTPC with TEID */
400 static const u32 ice_ptypes_gtpc_tid[] = {
401 0x00000000, 0x00000000, 0x00000000, 0x00000000,
402 0x00000000, 0x00000000, 0x00000000, 0x00000000,
403 0x00000000, 0x00000000, 0x00000060, 0x00000000,
404 0x00000000, 0x00000000, 0x00000000, 0x00000000,
405 0x00000000, 0x00000000, 0x00000000, 0x00000000,
406 0x00000000, 0x00000000, 0x00000000, 0x00000000,
407 0x00000000, 0x00000000, 0x00000000, 0x00000000,
408 0x00000000, 0x00000000, 0x00000000, 0x00000000,
409 };
410
411 /* Packet types for GTPU */
412 static const struct ice_ptype_attributes ice_attr_gtpu_eh[] = {
413 { ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH },
414 { ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
415 { ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
416 { ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH },
417 { ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_PDU_EH },
418 { ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH },
419 { ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
420 { ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
421 { ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH },
422 { ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_PDU_EH },
423 { ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH },
424 { ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
425 { ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
426 { ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH },
427 { ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_PDU_EH },
428 { ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH },
429 { ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
430 { ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
431 { ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH },
432 { ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_PDU_EH },
433 };
434
435 static const struct ice_ptype_attributes ice_attr_gtpu_down[] = {
436 { ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK },
437 { ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
438 { ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
439 { ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK },
440 { ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_DOWNLINK },
441 { ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK },
442 { ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
443 { ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
444 { ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK },
445 { ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_DOWNLINK },
446 { ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK },
447 { ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
448 { ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
449 { ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK },
450 { ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_DOWNLINK },
451 { ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK },
452 { ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
453 { ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
454 { ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK },
455 { ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_DOWNLINK },
456 };
457
458 static const struct ice_ptype_attributes ice_attr_gtpu_up[] = {
459 { ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK },
460 { ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
461 { ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
462 { ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_UPLINK },
463 { ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_UPLINK },
464 { ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK },
465 { ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
466 { ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
467 { ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_UPLINK },
468 { ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_UPLINK },
469 { ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK },
470 { ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
471 { ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
472 { ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_UPLINK },
473 { ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_UPLINK },
474 { ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK },
475 { ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
476 { ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
477 { ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_UPLINK },
478 { ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_UPLINK },
479 };
480
481 static const u32 ice_ptypes_gtpu[] = {
482 0x00000000, 0x00000000, 0x00000000, 0x00000000,
483 0x00000000, 0x00000000, 0x00000000, 0x00000000,
484 0x00000000, 0x00000000, 0x7FFFFE00, 0x00000000,
485 0x00000000, 0x00000000, 0x00000000, 0x00000000,
486 0x00000000, 0x00000000, 0x00000000, 0x00000000,
487 0x00000000, 0x00000000, 0x00000000, 0x00000000,
488 0x00000000, 0x00000000, 0x00000000, 0x00000000,
489 0x00000000, 0x00000000, 0x00000000, 0x00000000,
490 };
491
492 /* Packet types for PPPoE */
493 static const u32 ice_ptypes_pppoe[] = {
494 0x00000000, 0x00000000, 0x00000000, 0x00000000,
495 0x00000000, 0x00000000, 0x00000000, 0x00000000,
496 0x00000000, 0x03ffe000, 0x00000000, 0x00000000,
497 0x00000000, 0x00000000, 0x00000000, 0x00000000,
498 0x00000000, 0x00000000, 0x00000000, 0x00000000,
499 0x00000000, 0x00000000, 0x00000000, 0x00000000,
500 0x00000000, 0x00000000, 0x00000000, 0x00000000,
501 0x00000000, 0x00000000, 0x00000000, 0x00000000,
502 };
503
504 /* Packet types for packets with PFCP NODE header */
505 static const u32 ice_ptypes_pfcp_node[] = {
506 0x00000000, 0x00000000, 0x00000000, 0x00000000,
507 0x00000000, 0x00000000, 0x00000000, 0x00000000,
508 0x00000000, 0x00000000, 0x80000000, 0x00000002,
509 0x00000000, 0x00000000, 0x00000000, 0x00000000,
510 0x00000000, 0x00000000, 0x00000000, 0x00000000,
511 0x00000000, 0x00000000, 0x00000000, 0x00000000,
512 0x00000000, 0x00000000, 0x00000000, 0x00000000,
513 0x00000000, 0x00000000, 0x00000000, 0x00000000,
514 };
515
516 /* Packet types for packets with PFCP SESSION header */
517 static const u32 ice_ptypes_pfcp_session[] = {
518 0x00000000, 0x00000000, 0x00000000, 0x00000000,
519 0x00000000, 0x00000000, 0x00000000, 0x00000000,
520 0x00000000, 0x00000000, 0x00000000, 0x00000005,
521 0x00000000, 0x00000000, 0x00000000, 0x00000000,
522 0x00000000, 0x00000000, 0x00000000, 0x00000000,
523 0x00000000, 0x00000000, 0x00000000, 0x00000000,
524 0x00000000, 0x00000000, 0x00000000, 0x00000000,
525 0x00000000, 0x00000000, 0x00000000, 0x00000000,
526 };
527
528 /* Packet types for L2TPv3 */
529 static const u32 ice_ptypes_l2tpv3[] = {
530 0x00000000, 0x00000000, 0x00000000, 0x00000000,
531 0x00000000, 0x00000000, 0x00000000, 0x00000000,
532 0x00000000, 0x00000000, 0x00000000, 0x00000300,
533 0x00000000, 0x00000000, 0x00000000, 0x00000000,
534 0x00000000, 0x00000000, 0x00000000, 0x00000000,
535 0x00000000, 0x00000000, 0x00000000, 0x00000000,
536 0x00000000, 0x00000000, 0x00000000, 0x00000000,
537 0x00000000, 0x00000000, 0x00000000, 0x00000000,
538 };
539
540 /* Packet types for ESP */
541 static const u32 ice_ptypes_esp[] = {
542 0x00000000, 0x00000000, 0x00000000, 0x00000000,
543 0x00000000, 0x00000003, 0x00000000, 0x00000000,
544 0x00000000, 0x00000000, 0x00000000, 0x00000000,
545 0x00000000, 0x00000000, 0x00000000, 0x00000000,
546 0x00000000, 0x00000000, 0x00000000, 0x00000000,
547 0x00000000, 0x00000000, 0x00000000, 0x00000000,
548 0x00000000, 0x00000000, 0x00000000, 0x00000000,
549 0x00000000, 0x00000000, 0x00000000, 0x00000000,
550 };
551
552 /* Packet types for AH */
553 static const u32 ice_ptypes_ah[] = {
554 0x00000000, 0x00000000, 0x00000000, 0x00000000,
555 0x00000000, 0x0000000C, 0x00000000, 0x00000000,
556 0x00000000, 0x00000000, 0x00000000, 0x00000000,
557 0x00000000, 0x00000000, 0x00000000, 0x00000000,
558 0x00000000, 0x00000000, 0x00000000, 0x00000000,
559 0x00000000, 0x00000000, 0x00000000, 0x00000000,
560 0x00000000, 0x00000000, 0x00000000, 0x00000000,
561 0x00000000, 0x00000000, 0x00000000, 0x00000000,
562 };
563
564 /* Packet types for packets with NAT_T ESP header */
565 static const u32 ice_ptypes_nat_t_esp[] = {
566 0x00000000, 0x00000000, 0x00000000, 0x00000000,
567 0x00000000, 0x00000030, 0x00000000, 0x00000000,
568 0x00000000, 0x00000000, 0x00000000, 0x00000000,
569 0x00000000, 0x00000000, 0x00000000, 0x00000000,
570 0x00000000, 0x00000000, 0x00000000, 0x00000000,
571 0x00000000, 0x00000000, 0x00000000, 0x00000000,
572 0x00000000, 0x00000000, 0x00000000, 0x00000000,
573 0x00000000, 0x00000000, 0x00000000, 0x00000000,
574 };
575
576 static const u32 ice_ptypes_mac_non_ip_ofos[] = {
577 0x00000846, 0x00000000, 0x00000000, 0x00000000,
578 0x00000000, 0x00000000, 0x00000000, 0x00000000,
579 0x00400000, 0x03FFF000, 0x00000000, 0x00000000,
580 0x00000000, 0x00000000, 0x00000000, 0x00000000,
581 0x00000000, 0x00000000, 0x00000000, 0x00000000,
582 0x00000000, 0x00000000, 0x00000000, 0x00000000,
583 0x00000000, 0x00000000, 0x00000000, 0x00000000,
584 0x00000000, 0x00000000, 0x00000000, 0x00000000,
585 };
586
587 /* Manage parameters and info. used during the creation of a flow profile */
588 struct ice_flow_prof_params {
589 enum ice_block blk;
590 u16 entry_length; /* # of bytes formatted entry will require */
591 u8 es_cnt;
592 struct ice_flow_prof *prof;
593
594 /* For ACL, the es[0] will have the data of ICE_RX_MDID_PKT_FLAGS_15_0
595 * This will give us the direction flags.
596 */
597 struct ice_fv_word es[ICE_MAX_FV_WORDS];
598 /* attributes can be used to add attributes to a particular PTYPE */
599 const struct ice_ptype_attributes *attr;
600 u16 attr_cnt;
601
602 u16 mask[ICE_MAX_FV_WORDS];
603 DECLARE_BITMAP(ptypes, ICE_FLOW_PTYPE_MAX);
604 };
605
606 #define ICE_FLOW_RSS_HDRS_INNER_MASK \
607 (ICE_FLOW_SEG_HDR_PPPOE | ICE_FLOW_SEG_HDR_GTPC | \
608 ICE_FLOW_SEG_HDR_GTPC_TEID | ICE_FLOW_SEG_HDR_GTPU | \
609 ICE_FLOW_SEG_HDR_PFCP_SESSION | ICE_FLOW_SEG_HDR_L2TPV3 | \
610 ICE_FLOW_SEG_HDR_ESP | ICE_FLOW_SEG_HDR_AH | \
611 ICE_FLOW_SEG_HDR_NAT_T_ESP)
612
613 #define ICE_FLOW_SEG_HDRS_L3_MASK \
614 (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_ARP)
615 #define ICE_FLOW_SEG_HDRS_L4_MASK \
616 (ICE_FLOW_SEG_HDR_ICMP | ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | \
617 ICE_FLOW_SEG_HDR_SCTP)
618 /* mask for L4 protocols that are NOT part of IPv4/6 OTHER PTYPE groups */
619 #define ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER \
620 (ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_SCTP)
621
622 /**
623 * ice_flow_val_hdrs - validates packet segments for valid protocol headers
624 * @segs: array of one or more packet segments that describe the flow
625 * @segs_cnt: number of packet segments provided
626 */
ice_flow_val_hdrs(struct ice_flow_seg_info * segs,u8 segs_cnt)627 static int ice_flow_val_hdrs(struct ice_flow_seg_info *segs, u8 segs_cnt)
628 {
629 u8 i;
630
631 for (i = 0; i < segs_cnt; i++) {
632 /* Multiple L3 headers */
633 if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK &&
634 !is_power_of_2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK))
635 return -EINVAL;
636
637 /* Multiple L4 headers */
638 if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK &&
639 !is_power_of_2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK))
640 return -EINVAL;
641 }
642
643 return 0;
644 }
645
646 /* Sizes of fixed known protocol headers without header options */
647 #define ICE_FLOW_PROT_HDR_SZ_MAC 14
648 #define ICE_FLOW_PROT_HDR_SZ_MAC_VLAN (ICE_FLOW_PROT_HDR_SZ_MAC + 2)
649 #define ICE_FLOW_PROT_HDR_SZ_IPV4 20
650 #define ICE_FLOW_PROT_HDR_SZ_IPV6 40
651 #define ICE_FLOW_PROT_HDR_SZ_ARP 28
652 #define ICE_FLOW_PROT_HDR_SZ_ICMP 8
653 #define ICE_FLOW_PROT_HDR_SZ_TCP 20
654 #define ICE_FLOW_PROT_HDR_SZ_UDP 8
655 #define ICE_FLOW_PROT_HDR_SZ_SCTP 12
656
657 /**
658 * ice_flow_calc_seg_sz - calculates size of a packet segment based on headers
659 * @params: information about the flow to be processed
660 * @seg: index of packet segment whose header size is to be determined
661 */
ice_flow_calc_seg_sz(struct ice_flow_prof_params * params,u8 seg)662 static u16 ice_flow_calc_seg_sz(struct ice_flow_prof_params *params, u8 seg)
663 {
664 u16 sz;
665
666 /* L2 headers */
667 sz = (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_VLAN) ?
668 ICE_FLOW_PROT_HDR_SZ_MAC_VLAN : ICE_FLOW_PROT_HDR_SZ_MAC;
669
670 /* L3 headers */
671 if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4)
672 sz += ICE_FLOW_PROT_HDR_SZ_IPV4;
673 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV6)
674 sz += ICE_FLOW_PROT_HDR_SZ_IPV6;
675 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_ARP)
676 sz += ICE_FLOW_PROT_HDR_SZ_ARP;
677 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK)
678 /* An L3 header is required if L4 is specified */
679 return 0;
680
681 /* L4 headers */
682 if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_ICMP)
683 sz += ICE_FLOW_PROT_HDR_SZ_ICMP;
684 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_TCP)
685 sz += ICE_FLOW_PROT_HDR_SZ_TCP;
686 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_UDP)
687 sz += ICE_FLOW_PROT_HDR_SZ_UDP;
688 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_SCTP)
689 sz += ICE_FLOW_PROT_HDR_SZ_SCTP;
690
691 return sz;
692 }
693
694 /**
695 * ice_flow_proc_seg_hdrs - process protocol headers present in pkt segments
696 * @params: information about the flow to be processed
697 *
698 * This function identifies the packet types associated with the protocol
699 * headers being present in packet segments of the specified flow profile.
700 */
ice_flow_proc_seg_hdrs(struct ice_flow_prof_params * params)701 static int ice_flow_proc_seg_hdrs(struct ice_flow_prof_params *params)
702 {
703 struct ice_flow_prof *prof;
704 u8 i;
705
706 memset(params->ptypes, 0xff, sizeof(params->ptypes));
707
708 prof = params->prof;
709
710 for (i = 0; i < params->prof->segs_cnt; i++) {
711 const unsigned long *src;
712 u32 hdrs;
713
714 hdrs = prof->segs[i].hdrs;
715
716 if (hdrs & ICE_FLOW_SEG_HDR_ETH) {
717 src = !i ? (const unsigned long *)ice_ptypes_mac_ofos :
718 (const unsigned long *)ice_ptypes_mac_il;
719 bitmap_and(params->ptypes, params->ptypes, src,
720 ICE_FLOW_PTYPE_MAX);
721 }
722
723 if (i && hdrs & ICE_FLOW_SEG_HDR_VLAN) {
724 src = (const unsigned long *)ice_ptypes_macvlan_il;
725 bitmap_and(params->ptypes, params->ptypes, src,
726 ICE_FLOW_PTYPE_MAX);
727 }
728
729 if (!i && hdrs & ICE_FLOW_SEG_HDR_ARP) {
730 bitmap_and(params->ptypes, params->ptypes,
731 (const unsigned long *)ice_ptypes_arp_of,
732 ICE_FLOW_PTYPE_MAX);
733 }
734
735 if ((hdrs & ICE_FLOW_SEG_HDR_IPV4) &&
736 (hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)) {
737 src = i ? (const unsigned long *)ice_ptypes_ipv4_il :
738 (const unsigned long *)ice_ptypes_ipv4_ofos_all;
739 bitmap_and(params->ptypes, params->ptypes, src,
740 ICE_FLOW_PTYPE_MAX);
741 } else if ((hdrs & ICE_FLOW_SEG_HDR_IPV6) &&
742 (hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)) {
743 src = i ? (const unsigned long *)ice_ptypes_ipv6_il :
744 (const unsigned long *)ice_ptypes_ipv6_ofos_all;
745 bitmap_and(params->ptypes, params->ptypes, src,
746 ICE_FLOW_PTYPE_MAX);
747 } else if ((hdrs & ICE_FLOW_SEG_HDR_IPV4) &&
748 !(hdrs & ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER)) {
749 src = !i ? (const unsigned long *)ice_ptypes_ipv4_ofos_no_l4 :
750 (const unsigned long *)ice_ptypes_ipv4_il_no_l4;
751 bitmap_and(params->ptypes, params->ptypes, src,
752 ICE_FLOW_PTYPE_MAX);
753 } else if (hdrs & ICE_FLOW_SEG_HDR_IPV4) {
754 src = !i ? (const unsigned long *)ice_ptypes_ipv4_ofos :
755 (const unsigned long *)ice_ptypes_ipv4_il;
756 bitmap_and(params->ptypes, params->ptypes, src,
757 ICE_FLOW_PTYPE_MAX);
758 } else if ((hdrs & ICE_FLOW_SEG_HDR_IPV6) &&
759 !(hdrs & ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER)) {
760 src = !i ? (const unsigned long *)ice_ptypes_ipv6_ofos_no_l4 :
761 (const unsigned long *)ice_ptypes_ipv6_il_no_l4;
762 bitmap_and(params->ptypes, params->ptypes, src,
763 ICE_FLOW_PTYPE_MAX);
764 } else if (hdrs & ICE_FLOW_SEG_HDR_IPV6) {
765 src = !i ? (const unsigned long *)ice_ptypes_ipv6_ofos :
766 (const unsigned long *)ice_ptypes_ipv6_il;
767 bitmap_and(params->ptypes, params->ptypes, src,
768 ICE_FLOW_PTYPE_MAX);
769 }
770
771 if (hdrs & ICE_FLOW_SEG_HDR_ETH_NON_IP) {
772 src = (const unsigned long *)ice_ptypes_mac_non_ip_ofos;
773 bitmap_and(params->ptypes, params->ptypes, src,
774 ICE_FLOW_PTYPE_MAX);
775 } else if (hdrs & ICE_FLOW_SEG_HDR_PPPOE) {
776 src = (const unsigned long *)ice_ptypes_pppoe;
777 bitmap_and(params->ptypes, params->ptypes, src,
778 ICE_FLOW_PTYPE_MAX);
779 } else {
780 src = (const unsigned long *)ice_ptypes_pppoe;
781 bitmap_andnot(params->ptypes, params->ptypes, src,
782 ICE_FLOW_PTYPE_MAX);
783 }
784
785 if (hdrs & ICE_FLOW_SEG_HDR_UDP) {
786 src = (const unsigned long *)ice_ptypes_udp_il;
787 bitmap_and(params->ptypes, params->ptypes, src,
788 ICE_FLOW_PTYPE_MAX);
789 } else if (hdrs & ICE_FLOW_SEG_HDR_TCP) {
790 bitmap_and(params->ptypes, params->ptypes,
791 (const unsigned long *)ice_ptypes_tcp_il,
792 ICE_FLOW_PTYPE_MAX);
793 } else if (hdrs & ICE_FLOW_SEG_HDR_SCTP) {
794 src = (const unsigned long *)ice_ptypes_sctp_il;
795 bitmap_and(params->ptypes, params->ptypes, src,
796 ICE_FLOW_PTYPE_MAX);
797 }
798
799 if (hdrs & ICE_FLOW_SEG_HDR_ICMP) {
800 src = !i ? (const unsigned long *)ice_ptypes_icmp_of :
801 (const unsigned long *)ice_ptypes_icmp_il;
802 bitmap_and(params->ptypes, params->ptypes, src,
803 ICE_FLOW_PTYPE_MAX);
804 } else if (hdrs & ICE_FLOW_SEG_HDR_GRE) {
805 if (!i) {
806 src = (const unsigned long *)ice_ptypes_gre_of;
807 bitmap_and(params->ptypes, params->ptypes,
808 src, ICE_FLOW_PTYPE_MAX);
809 }
810 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPC) {
811 src = (const unsigned long *)ice_ptypes_gtpc;
812 bitmap_and(params->ptypes, params->ptypes, src,
813 ICE_FLOW_PTYPE_MAX);
814 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPC_TEID) {
815 src = (const unsigned long *)ice_ptypes_gtpc_tid;
816 bitmap_and(params->ptypes, params->ptypes, src,
817 ICE_FLOW_PTYPE_MAX);
818 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_DWN) {
819 src = (const unsigned long *)ice_ptypes_gtpu;
820 bitmap_and(params->ptypes, params->ptypes, src,
821 ICE_FLOW_PTYPE_MAX);
822
823 /* Attributes for GTP packet with downlink */
824 params->attr = ice_attr_gtpu_down;
825 params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_down);
826 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_UP) {
827 src = (const unsigned long *)ice_ptypes_gtpu;
828 bitmap_and(params->ptypes, params->ptypes, src,
829 ICE_FLOW_PTYPE_MAX);
830
831 /* Attributes for GTP packet with uplink */
832 params->attr = ice_attr_gtpu_up;
833 params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_up);
834 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_EH) {
835 src = (const unsigned long *)ice_ptypes_gtpu;
836 bitmap_and(params->ptypes, params->ptypes, src,
837 ICE_FLOW_PTYPE_MAX);
838
839 /* Attributes for GTP packet with Extension Header */
840 params->attr = ice_attr_gtpu_eh;
841 params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_eh);
842 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_IP) {
843 src = (const unsigned long *)ice_ptypes_gtpu;
844 bitmap_and(params->ptypes, params->ptypes, src,
845 ICE_FLOW_PTYPE_MAX);
846 } else if (hdrs & ICE_FLOW_SEG_HDR_L2TPV3) {
847 src = (const unsigned long *)ice_ptypes_l2tpv3;
848 bitmap_and(params->ptypes, params->ptypes, src,
849 ICE_FLOW_PTYPE_MAX);
850 } else if (hdrs & ICE_FLOW_SEG_HDR_ESP) {
851 src = (const unsigned long *)ice_ptypes_esp;
852 bitmap_and(params->ptypes, params->ptypes, src,
853 ICE_FLOW_PTYPE_MAX);
854 } else if (hdrs & ICE_FLOW_SEG_HDR_AH) {
855 src = (const unsigned long *)ice_ptypes_ah;
856 bitmap_and(params->ptypes, params->ptypes, src,
857 ICE_FLOW_PTYPE_MAX);
858 } else if (hdrs & ICE_FLOW_SEG_HDR_NAT_T_ESP) {
859 src = (const unsigned long *)ice_ptypes_nat_t_esp;
860 bitmap_and(params->ptypes, params->ptypes, src,
861 ICE_FLOW_PTYPE_MAX);
862 }
863
864 if (hdrs & ICE_FLOW_SEG_HDR_PFCP) {
865 if (hdrs & ICE_FLOW_SEG_HDR_PFCP_NODE)
866 src = (const unsigned long *)ice_ptypes_pfcp_node;
867 else
868 src = (const unsigned long *)ice_ptypes_pfcp_session;
869
870 bitmap_and(params->ptypes, params->ptypes, src,
871 ICE_FLOW_PTYPE_MAX);
872 } else {
873 src = (const unsigned long *)ice_ptypes_pfcp_node;
874 bitmap_andnot(params->ptypes, params->ptypes, src,
875 ICE_FLOW_PTYPE_MAX);
876
877 src = (const unsigned long *)ice_ptypes_pfcp_session;
878 bitmap_andnot(params->ptypes, params->ptypes, src,
879 ICE_FLOW_PTYPE_MAX);
880 }
881 }
882
883 return 0;
884 }
885
886 /**
887 * ice_flow_xtract_fld - Create an extraction sequence entry for the given field
888 * @hw: pointer to the HW struct
889 * @params: information about the flow to be processed
890 * @seg: packet segment index of the field to be extracted
891 * @fld: ID of field to be extracted
892 * @match: bit field of all fields
893 *
894 * This function determines the protocol ID, offset, and size of the given
895 * field. It then allocates one or more extraction sequence entries for the
896 * given field, and fill the entries with protocol ID and offset information.
897 */
898 static int
ice_flow_xtract_fld(struct ice_hw * hw,struct ice_flow_prof_params * params,u8 seg,enum ice_flow_field fld,u64 match)899 ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params,
900 u8 seg, enum ice_flow_field fld, u64 match)
901 {
902 enum ice_flow_field sib = ICE_FLOW_FIELD_IDX_MAX;
903 enum ice_prot_id prot_id = ICE_PROT_ID_INVAL;
904 u8 fv_words = hw->blk[params->blk].es.fvw;
905 struct ice_flow_fld_info *flds;
906 u16 cnt, ese_bits, i;
907 u16 sib_mask = 0;
908 u16 mask;
909 u16 off;
910
911 flds = params->prof->segs[seg].fields;
912
913 switch (fld) {
914 case ICE_FLOW_FIELD_IDX_ETH_DA:
915 case ICE_FLOW_FIELD_IDX_ETH_SA:
916 case ICE_FLOW_FIELD_IDX_S_VLAN:
917 case ICE_FLOW_FIELD_IDX_C_VLAN:
918 prot_id = seg == 0 ? ICE_PROT_MAC_OF_OR_S : ICE_PROT_MAC_IL;
919 break;
920 case ICE_FLOW_FIELD_IDX_ETH_TYPE:
921 prot_id = seg == 0 ? ICE_PROT_ETYPE_OL : ICE_PROT_ETYPE_IL;
922 break;
923 case ICE_FLOW_FIELD_IDX_IPV4_DSCP:
924 prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL;
925 break;
926 case ICE_FLOW_FIELD_IDX_IPV6_DSCP:
927 prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL;
928 break;
929 case ICE_FLOW_FIELD_IDX_IPV4_TTL:
930 case ICE_FLOW_FIELD_IDX_IPV4_PROT:
931 prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL;
932
933 /* TTL and PROT share the same extraction seq. entry.
934 * Each is considered a sibling to the other in terms of sharing
935 * the same extraction sequence entry.
936 */
937 if (fld == ICE_FLOW_FIELD_IDX_IPV4_TTL)
938 sib = ICE_FLOW_FIELD_IDX_IPV4_PROT;
939 else if (fld == ICE_FLOW_FIELD_IDX_IPV4_PROT)
940 sib = ICE_FLOW_FIELD_IDX_IPV4_TTL;
941
942 /* If the sibling field is also included, that field's
943 * mask needs to be included.
944 */
945 if (match & BIT(sib))
946 sib_mask = ice_flds_info[sib].mask;
947 break;
948 case ICE_FLOW_FIELD_IDX_IPV6_TTL:
949 case ICE_FLOW_FIELD_IDX_IPV6_PROT:
950 prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL;
951
952 /* TTL and PROT share the same extraction seq. entry.
953 * Each is considered a sibling to the other in terms of sharing
954 * the same extraction sequence entry.
955 */
956 if (fld == ICE_FLOW_FIELD_IDX_IPV6_TTL)
957 sib = ICE_FLOW_FIELD_IDX_IPV6_PROT;
958 else if (fld == ICE_FLOW_FIELD_IDX_IPV6_PROT)
959 sib = ICE_FLOW_FIELD_IDX_IPV6_TTL;
960
961 /* If the sibling field is also included, that field's
962 * mask needs to be included.
963 */
964 if (match & BIT(sib))
965 sib_mask = ice_flds_info[sib].mask;
966 break;
967 case ICE_FLOW_FIELD_IDX_IPV4_SA:
968 case ICE_FLOW_FIELD_IDX_IPV4_DA:
969 prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL;
970 break;
971 case ICE_FLOW_FIELD_IDX_IPV6_SA:
972 case ICE_FLOW_FIELD_IDX_IPV6_DA:
973 prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL;
974 break;
975 case ICE_FLOW_FIELD_IDX_TCP_SRC_PORT:
976 case ICE_FLOW_FIELD_IDX_TCP_DST_PORT:
977 case ICE_FLOW_FIELD_IDX_TCP_FLAGS:
978 prot_id = ICE_PROT_TCP_IL;
979 break;
980 case ICE_FLOW_FIELD_IDX_UDP_SRC_PORT:
981 case ICE_FLOW_FIELD_IDX_UDP_DST_PORT:
982 prot_id = ICE_PROT_UDP_IL_OR_S;
983 break;
984 case ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT:
985 case ICE_FLOW_FIELD_IDX_SCTP_DST_PORT:
986 prot_id = ICE_PROT_SCTP_IL;
987 break;
988 case ICE_FLOW_FIELD_IDX_GTPC_TEID:
989 case ICE_FLOW_FIELD_IDX_GTPU_IP_TEID:
990 case ICE_FLOW_FIELD_IDX_GTPU_UP_TEID:
991 case ICE_FLOW_FIELD_IDX_GTPU_DWN_TEID:
992 case ICE_FLOW_FIELD_IDX_GTPU_EH_TEID:
993 case ICE_FLOW_FIELD_IDX_GTPU_EH_QFI:
994 /* GTP is accessed through UDP OF protocol */
995 prot_id = ICE_PROT_UDP_OF;
996 break;
997 case ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID:
998 prot_id = ICE_PROT_PPPOE;
999 break;
1000 case ICE_FLOW_FIELD_IDX_PFCP_SEID:
1001 prot_id = ICE_PROT_UDP_IL_OR_S;
1002 break;
1003 case ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID:
1004 prot_id = ICE_PROT_L2TPV3;
1005 break;
1006 case ICE_FLOW_FIELD_IDX_ESP_SPI:
1007 prot_id = ICE_PROT_ESP_F;
1008 break;
1009 case ICE_FLOW_FIELD_IDX_AH_SPI:
1010 prot_id = ICE_PROT_ESP_2;
1011 break;
1012 case ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI:
1013 prot_id = ICE_PROT_UDP_IL_OR_S;
1014 break;
1015 case ICE_FLOW_FIELD_IDX_ARP_SIP:
1016 case ICE_FLOW_FIELD_IDX_ARP_DIP:
1017 case ICE_FLOW_FIELD_IDX_ARP_SHA:
1018 case ICE_FLOW_FIELD_IDX_ARP_DHA:
1019 case ICE_FLOW_FIELD_IDX_ARP_OP:
1020 prot_id = ICE_PROT_ARP_OF;
1021 break;
1022 case ICE_FLOW_FIELD_IDX_ICMP_TYPE:
1023 case ICE_FLOW_FIELD_IDX_ICMP_CODE:
1024 /* ICMP type and code share the same extraction seq. entry */
1025 prot_id = (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4) ?
1026 ICE_PROT_ICMP_IL : ICE_PROT_ICMPV6_IL;
1027 sib = fld == ICE_FLOW_FIELD_IDX_ICMP_TYPE ?
1028 ICE_FLOW_FIELD_IDX_ICMP_CODE :
1029 ICE_FLOW_FIELD_IDX_ICMP_TYPE;
1030 break;
1031 case ICE_FLOW_FIELD_IDX_GRE_KEYID:
1032 prot_id = ICE_PROT_GRE_OF;
1033 break;
1034 default:
1035 return -EOPNOTSUPP;
1036 }
1037
1038 /* Each extraction sequence entry is a word in size, and extracts a
1039 * word-aligned offset from a protocol header.
1040 */
1041 ese_bits = ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE;
1042
1043 flds[fld].xtrct.prot_id = prot_id;
1044 flds[fld].xtrct.off = (ice_flds_info[fld].off / ese_bits) *
1045 ICE_FLOW_FV_EXTRACT_SZ;
1046 flds[fld].xtrct.disp = (u8)(ice_flds_info[fld].off % ese_bits);
1047 flds[fld].xtrct.idx = params->es_cnt;
1048 flds[fld].xtrct.mask = ice_flds_info[fld].mask;
1049
1050 /* Adjust the next field-entry index after accommodating the number of
1051 * entries this field consumes
1052 */
1053 cnt = DIV_ROUND_UP(flds[fld].xtrct.disp + ice_flds_info[fld].size,
1054 ese_bits);
1055
1056 /* Fill in the extraction sequence entries needed for this field */
1057 off = flds[fld].xtrct.off;
1058 mask = flds[fld].xtrct.mask;
1059 for (i = 0; i < cnt; i++) {
1060 /* Only consume an extraction sequence entry if there is no
1061 * sibling field associated with this field or the sibling entry
1062 * already extracts the word shared with this field.
1063 */
1064 if (sib == ICE_FLOW_FIELD_IDX_MAX ||
1065 flds[sib].xtrct.prot_id == ICE_PROT_ID_INVAL ||
1066 flds[sib].xtrct.off != off) {
1067 u8 idx;
1068
1069 /* Make sure the number of extraction sequence required
1070 * does not exceed the block's capability
1071 */
1072 if (params->es_cnt >= fv_words)
1073 return -ENOSPC;
1074
1075 /* some blocks require a reversed field vector layout */
1076 if (hw->blk[params->blk].es.reverse)
1077 idx = fv_words - params->es_cnt - 1;
1078 else
1079 idx = params->es_cnt;
1080
1081 params->es[idx].prot_id = prot_id;
1082 params->es[idx].off = off;
1083 params->mask[idx] = mask | sib_mask;
1084 params->es_cnt++;
1085 }
1086
1087 off += ICE_FLOW_FV_EXTRACT_SZ;
1088 }
1089
1090 return 0;
1091 }
1092
1093 /**
1094 * ice_flow_xtract_raws - Create extract sequence entries for raw bytes
1095 * @hw: pointer to the HW struct
1096 * @params: information about the flow to be processed
1097 * @seg: index of packet segment whose raw fields are to be extracted
1098 */
1099 static int
ice_flow_xtract_raws(struct ice_hw * hw,struct ice_flow_prof_params * params,u8 seg)1100 ice_flow_xtract_raws(struct ice_hw *hw, struct ice_flow_prof_params *params,
1101 u8 seg)
1102 {
1103 u16 fv_words;
1104 u16 hdrs_sz;
1105 u8 i;
1106
1107 if (!params->prof->segs[seg].raws_cnt)
1108 return 0;
1109
1110 if (params->prof->segs[seg].raws_cnt >
1111 ARRAY_SIZE(params->prof->segs[seg].raws))
1112 return -ENOSPC;
1113
1114 /* Offsets within the segment headers are not supported */
1115 hdrs_sz = ice_flow_calc_seg_sz(params, seg);
1116 if (!hdrs_sz)
1117 return -EINVAL;
1118
1119 fv_words = hw->blk[params->blk].es.fvw;
1120
1121 for (i = 0; i < params->prof->segs[seg].raws_cnt; i++) {
1122 struct ice_flow_seg_fld_raw *raw;
1123 u16 off, cnt, j;
1124
1125 raw = ¶ms->prof->segs[seg].raws[i];
1126
1127 /* Storing extraction information */
1128 raw->info.xtrct.prot_id = ICE_PROT_MAC_OF_OR_S;
1129 raw->info.xtrct.off = (raw->off / ICE_FLOW_FV_EXTRACT_SZ) *
1130 ICE_FLOW_FV_EXTRACT_SZ;
1131 raw->info.xtrct.disp = (raw->off % ICE_FLOW_FV_EXTRACT_SZ) *
1132 BITS_PER_BYTE;
1133 raw->info.xtrct.idx = params->es_cnt;
1134
1135 /* Determine the number of field vector entries this raw field
1136 * consumes.
1137 */
1138 cnt = DIV_ROUND_UP(raw->info.xtrct.disp +
1139 (raw->info.src.last * BITS_PER_BYTE),
1140 (ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE));
1141 off = raw->info.xtrct.off;
1142 for (j = 0; j < cnt; j++) {
1143 u16 idx;
1144
1145 /* Make sure the number of extraction sequence required
1146 * does not exceed the block's capability
1147 */
1148 if (params->es_cnt >= hw->blk[params->blk].es.count ||
1149 params->es_cnt >= ICE_MAX_FV_WORDS)
1150 return -ENOSPC;
1151
1152 /* some blocks require a reversed field vector layout */
1153 if (hw->blk[params->blk].es.reverse)
1154 idx = fv_words - params->es_cnt - 1;
1155 else
1156 idx = params->es_cnt;
1157
1158 params->es[idx].prot_id = raw->info.xtrct.prot_id;
1159 params->es[idx].off = off;
1160 params->es_cnt++;
1161 off += ICE_FLOW_FV_EXTRACT_SZ;
1162 }
1163 }
1164
1165 return 0;
1166 }
1167
1168 /**
1169 * ice_flow_create_xtrct_seq - Create an extraction sequence for given segments
1170 * @hw: pointer to the HW struct
1171 * @params: information about the flow to be processed
1172 *
1173 * This function iterates through all matched fields in the given segments, and
1174 * creates an extraction sequence for the fields.
1175 */
1176 static int
ice_flow_create_xtrct_seq(struct ice_hw * hw,struct ice_flow_prof_params * params)1177 ice_flow_create_xtrct_seq(struct ice_hw *hw,
1178 struct ice_flow_prof_params *params)
1179 {
1180 struct ice_flow_prof *prof = params->prof;
1181 int status = 0;
1182 u8 i;
1183
1184 for (i = 0; i < prof->segs_cnt; i++) {
1185 u64 match = params->prof->segs[i].match;
1186 enum ice_flow_field j;
1187
1188 for_each_set_bit(j, (unsigned long *)&match,
1189 ICE_FLOW_FIELD_IDX_MAX) {
1190 status = ice_flow_xtract_fld(hw, params, i, j, match);
1191 if (status)
1192 return status;
1193 clear_bit(j, (unsigned long *)&match);
1194 }
1195
1196 /* Process raw matching bytes */
1197 status = ice_flow_xtract_raws(hw, params, i);
1198 if (status)
1199 return status;
1200 }
1201
1202 return status;
1203 }
1204
1205 /**
1206 * ice_flow_proc_segs - process all packet segments associated with a profile
1207 * @hw: pointer to the HW struct
1208 * @params: information about the flow to be processed
1209 */
1210 static int
ice_flow_proc_segs(struct ice_hw * hw,struct ice_flow_prof_params * params)1211 ice_flow_proc_segs(struct ice_hw *hw, struct ice_flow_prof_params *params)
1212 {
1213 int status;
1214
1215 status = ice_flow_proc_seg_hdrs(params);
1216 if (status)
1217 return status;
1218
1219 status = ice_flow_create_xtrct_seq(hw, params);
1220 if (status)
1221 return status;
1222
1223 switch (params->blk) {
1224 case ICE_BLK_FD:
1225 case ICE_BLK_RSS:
1226 status = 0;
1227 break;
1228 default:
1229 return -EOPNOTSUPP;
1230 }
1231
1232 return status;
1233 }
1234
1235 #define ICE_FLOW_FIND_PROF_CHK_FLDS 0x00000001
1236 #define ICE_FLOW_FIND_PROF_CHK_VSI 0x00000002
1237 #define ICE_FLOW_FIND_PROF_NOT_CHK_DIR 0x00000004
1238
1239 /**
1240 * ice_flow_find_prof_conds - Find a profile matching headers and conditions
1241 * @hw: pointer to the HW struct
1242 * @blk: classification stage
1243 * @dir: flow direction
1244 * @segs: array of one or more packet segments that describe the flow
1245 * @segs_cnt: number of packet segments provided
1246 * @vsi_handle: software VSI handle to check VSI (ICE_FLOW_FIND_PROF_CHK_VSI)
1247 * @conds: additional conditions to be checked (ICE_FLOW_FIND_PROF_CHK_*)
1248 */
1249 static struct ice_flow_prof *
ice_flow_find_prof_conds(struct ice_hw * hw,enum ice_block blk,enum ice_flow_dir dir,struct ice_flow_seg_info * segs,u8 segs_cnt,u16 vsi_handle,u32 conds)1250 ice_flow_find_prof_conds(struct ice_hw *hw, enum ice_block blk,
1251 enum ice_flow_dir dir, struct ice_flow_seg_info *segs,
1252 u8 segs_cnt, u16 vsi_handle, u32 conds)
1253 {
1254 struct ice_flow_prof *p, *prof = NULL;
1255
1256 mutex_lock(&hw->fl_profs_locks[blk]);
1257 list_for_each_entry(p, &hw->fl_profs[blk], l_entry)
1258 if ((p->dir == dir || conds & ICE_FLOW_FIND_PROF_NOT_CHK_DIR) &&
1259 segs_cnt && segs_cnt == p->segs_cnt) {
1260 u8 i;
1261
1262 /* Check for profile-VSI association if specified */
1263 if ((conds & ICE_FLOW_FIND_PROF_CHK_VSI) &&
1264 ice_is_vsi_valid(hw, vsi_handle) &&
1265 !test_bit(vsi_handle, p->vsis))
1266 continue;
1267
1268 /* Protocol headers must be checked. Matched fields are
1269 * checked if specified.
1270 */
1271 for (i = 0; i < segs_cnt; i++)
1272 if (segs[i].hdrs != p->segs[i].hdrs ||
1273 ((conds & ICE_FLOW_FIND_PROF_CHK_FLDS) &&
1274 segs[i].match != p->segs[i].match))
1275 break;
1276
1277 /* A match is found if all segments are matched */
1278 if (i == segs_cnt) {
1279 prof = p;
1280 break;
1281 }
1282 }
1283 mutex_unlock(&hw->fl_profs_locks[blk]);
1284
1285 return prof;
1286 }
1287
1288 /**
1289 * ice_flow_find_prof_id - Look up a profile with given profile ID
1290 * @hw: pointer to the HW struct
1291 * @blk: classification stage
1292 * @prof_id: unique ID to identify this flow profile
1293 */
1294 static struct ice_flow_prof *
ice_flow_find_prof_id(struct ice_hw * hw,enum ice_block blk,u64 prof_id)1295 ice_flow_find_prof_id(struct ice_hw *hw, enum ice_block blk, u64 prof_id)
1296 {
1297 struct ice_flow_prof *p;
1298
1299 list_for_each_entry(p, &hw->fl_profs[blk], l_entry)
1300 if (p->id == prof_id)
1301 return p;
1302
1303 return NULL;
1304 }
1305
1306 /**
1307 * ice_dealloc_flow_entry - Deallocate flow entry memory
1308 * @hw: pointer to the HW struct
1309 * @entry: flow entry to be removed
1310 */
1311 static void
ice_dealloc_flow_entry(struct ice_hw * hw,struct ice_flow_entry * entry)1312 ice_dealloc_flow_entry(struct ice_hw *hw, struct ice_flow_entry *entry)
1313 {
1314 if (!entry)
1315 return;
1316
1317 if (entry->entry)
1318 devm_kfree(ice_hw_to_dev(hw), entry->entry);
1319
1320 devm_kfree(ice_hw_to_dev(hw), entry);
1321 }
1322
1323 /**
1324 * ice_flow_rem_entry_sync - Remove a flow entry
1325 * @hw: pointer to the HW struct
1326 * @blk: classification stage
1327 * @entry: flow entry to be removed
1328 */
1329 static int
ice_flow_rem_entry_sync(struct ice_hw * hw,enum ice_block __always_unused blk,struct ice_flow_entry * entry)1330 ice_flow_rem_entry_sync(struct ice_hw *hw, enum ice_block __always_unused blk,
1331 struct ice_flow_entry *entry)
1332 {
1333 if (!entry)
1334 return -EINVAL;
1335
1336 list_del(&entry->l_entry);
1337
1338 ice_dealloc_flow_entry(hw, entry);
1339
1340 return 0;
1341 }
1342
1343 /**
1344 * ice_flow_add_prof_sync - Add a flow profile for packet segments and fields
1345 * @hw: pointer to the HW struct
1346 * @blk: classification stage
1347 * @dir: flow direction
1348 * @prof_id: unique ID to identify this flow profile
1349 * @segs: array of one or more packet segments that describe the flow
1350 * @segs_cnt: number of packet segments provided
1351 * @prof: stores the returned flow profile added
1352 *
1353 * Assumption: the caller has acquired the lock to the profile list
1354 */
1355 static int
ice_flow_add_prof_sync(struct ice_hw * hw,enum ice_block blk,enum ice_flow_dir dir,u64 prof_id,struct ice_flow_seg_info * segs,u8 segs_cnt,struct ice_flow_prof ** prof)1356 ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk,
1357 enum ice_flow_dir dir, u64 prof_id,
1358 struct ice_flow_seg_info *segs, u8 segs_cnt,
1359 struct ice_flow_prof **prof)
1360 {
1361 struct ice_flow_prof_params *params;
1362 int status;
1363 u8 i;
1364
1365 if (!prof)
1366 return -EINVAL;
1367
1368 params = kzalloc(sizeof(*params), GFP_KERNEL);
1369 if (!params)
1370 return -ENOMEM;
1371
1372 params->prof = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*params->prof),
1373 GFP_KERNEL);
1374 if (!params->prof) {
1375 status = -ENOMEM;
1376 goto free_params;
1377 }
1378
1379 /* initialize extraction sequence to all invalid (0xff) */
1380 for (i = 0; i < ICE_MAX_FV_WORDS; i++) {
1381 params->es[i].prot_id = ICE_PROT_INVALID;
1382 params->es[i].off = ICE_FV_OFFSET_INVAL;
1383 }
1384
1385 params->blk = blk;
1386 params->prof->id = prof_id;
1387 params->prof->dir = dir;
1388 params->prof->segs_cnt = segs_cnt;
1389
1390 /* Make a copy of the segments that need to be persistent in the flow
1391 * profile instance
1392 */
1393 for (i = 0; i < segs_cnt; i++)
1394 memcpy(¶ms->prof->segs[i], &segs[i], sizeof(*segs));
1395
1396 status = ice_flow_proc_segs(hw, params);
1397 if (status) {
1398 ice_debug(hw, ICE_DBG_FLOW, "Error processing a flow's packet segments\n");
1399 goto out;
1400 }
1401
1402 /* Add a HW profile for this flow profile */
1403 status = ice_add_prof(hw, blk, prof_id, (u8 *)params->ptypes,
1404 params->attr, params->attr_cnt, params->es,
1405 params->mask);
1406 if (status) {
1407 ice_debug(hw, ICE_DBG_FLOW, "Error adding a HW flow profile\n");
1408 goto out;
1409 }
1410
1411 INIT_LIST_HEAD(¶ms->prof->entries);
1412 mutex_init(¶ms->prof->entries_lock);
1413 *prof = params->prof;
1414
1415 out:
1416 if (status)
1417 devm_kfree(ice_hw_to_dev(hw), params->prof);
1418 free_params:
1419 kfree(params);
1420
1421 return status;
1422 }
1423
1424 /**
1425 * ice_flow_rem_prof_sync - remove a flow profile
1426 * @hw: pointer to the hardware structure
1427 * @blk: classification stage
1428 * @prof: pointer to flow profile to remove
1429 *
1430 * Assumption: the caller has acquired the lock to the profile list
1431 */
1432 static int
ice_flow_rem_prof_sync(struct ice_hw * hw,enum ice_block blk,struct ice_flow_prof * prof)1433 ice_flow_rem_prof_sync(struct ice_hw *hw, enum ice_block blk,
1434 struct ice_flow_prof *prof)
1435 {
1436 int status;
1437
1438 /* Remove all remaining flow entries before removing the flow profile */
1439 if (!list_empty(&prof->entries)) {
1440 struct ice_flow_entry *e, *t;
1441
1442 mutex_lock(&prof->entries_lock);
1443
1444 list_for_each_entry_safe(e, t, &prof->entries, l_entry) {
1445 status = ice_flow_rem_entry_sync(hw, blk, e);
1446 if (status)
1447 break;
1448 }
1449
1450 mutex_unlock(&prof->entries_lock);
1451 }
1452
1453 /* Remove all hardware profiles associated with this flow profile */
1454 status = ice_rem_prof(hw, blk, prof->id);
1455 if (!status) {
1456 list_del(&prof->l_entry);
1457 mutex_destroy(&prof->entries_lock);
1458 devm_kfree(ice_hw_to_dev(hw), prof);
1459 }
1460
1461 return status;
1462 }
1463
1464 /**
1465 * ice_flow_assoc_prof - associate a VSI with a flow profile
1466 * @hw: pointer to the hardware structure
1467 * @blk: classification stage
1468 * @prof: pointer to flow profile
1469 * @vsi_handle: software VSI handle
1470 *
1471 * Assumption: the caller has acquired the lock to the profile list
1472 * and the software VSI handle has been validated
1473 */
1474 static int
ice_flow_assoc_prof(struct ice_hw * hw,enum ice_block blk,struct ice_flow_prof * prof,u16 vsi_handle)1475 ice_flow_assoc_prof(struct ice_hw *hw, enum ice_block blk,
1476 struct ice_flow_prof *prof, u16 vsi_handle)
1477 {
1478 int status = 0;
1479
1480 if (!test_bit(vsi_handle, prof->vsis)) {
1481 status = ice_add_prof_id_flow(hw, blk,
1482 ice_get_hw_vsi_num(hw,
1483 vsi_handle),
1484 prof->id);
1485 if (!status)
1486 set_bit(vsi_handle, prof->vsis);
1487 else
1488 ice_debug(hw, ICE_DBG_FLOW, "HW profile add failed, %d\n",
1489 status);
1490 }
1491
1492 return status;
1493 }
1494
1495 /**
1496 * ice_flow_disassoc_prof - disassociate a VSI from a flow profile
1497 * @hw: pointer to the hardware structure
1498 * @blk: classification stage
1499 * @prof: pointer to flow profile
1500 * @vsi_handle: software VSI handle
1501 *
1502 * Assumption: the caller has acquired the lock to the profile list
1503 * and the software VSI handle has been validated
1504 */
1505 static int
ice_flow_disassoc_prof(struct ice_hw * hw,enum ice_block blk,struct ice_flow_prof * prof,u16 vsi_handle)1506 ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk,
1507 struct ice_flow_prof *prof, u16 vsi_handle)
1508 {
1509 int status = 0;
1510
1511 if (test_bit(vsi_handle, prof->vsis)) {
1512 status = ice_rem_prof_id_flow(hw, blk,
1513 ice_get_hw_vsi_num(hw,
1514 vsi_handle),
1515 prof->id);
1516 if (!status)
1517 clear_bit(vsi_handle, prof->vsis);
1518 else
1519 ice_debug(hw, ICE_DBG_FLOW, "HW profile remove failed, %d\n",
1520 status);
1521 }
1522
1523 return status;
1524 }
1525
1526 /**
1527 * ice_flow_add_prof - Add a flow profile for packet segments and matched fields
1528 * @hw: pointer to the HW struct
1529 * @blk: classification stage
1530 * @dir: flow direction
1531 * @prof_id: unique ID to identify this flow profile
1532 * @segs: array of one or more packet segments that describe the flow
1533 * @segs_cnt: number of packet segments provided
1534 * @prof: stores the returned flow profile added
1535 */
1536 int
ice_flow_add_prof(struct ice_hw * hw,enum ice_block blk,enum ice_flow_dir dir,u64 prof_id,struct ice_flow_seg_info * segs,u8 segs_cnt,struct ice_flow_prof ** prof)1537 ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir,
1538 u64 prof_id, struct ice_flow_seg_info *segs, u8 segs_cnt,
1539 struct ice_flow_prof **prof)
1540 {
1541 int status;
1542
1543 if (segs_cnt > ICE_FLOW_SEG_MAX)
1544 return -ENOSPC;
1545
1546 if (!segs_cnt)
1547 return -EINVAL;
1548
1549 if (!segs)
1550 return -EINVAL;
1551
1552 status = ice_flow_val_hdrs(segs, segs_cnt);
1553 if (status)
1554 return status;
1555
1556 mutex_lock(&hw->fl_profs_locks[blk]);
1557
1558 status = ice_flow_add_prof_sync(hw, blk, dir, prof_id, segs, segs_cnt,
1559 prof);
1560 if (!status)
1561 list_add(&(*prof)->l_entry, &hw->fl_profs[blk]);
1562
1563 mutex_unlock(&hw->fl_profs_locks[blk]);
1564
1565 return status;
1566 }
1567
1568 /**
1569 * ice_flow_rem_prof - Remove a flow profile and all entries associated with it
1570 * @hw: pointer to the HW struct
1571 * @blk: the block for which the flow profile is to be removed
1572 * @prof_id: unique ID of the flow profile to be removed
1573 */
ice_flow_rem_prof(struct ice_hw * hw,enum ice_block blk,u64 prof_id)1574 int ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id)
1575 {
1576 struct ice_flow_prof *prof;
1577 int status;
1578
1579 mutex_lock(&hw->fl_profs_locks[blk]);
1580
1581 prof = ice_flow_find_prof_id(hw, blk, prof_id);
1582 if (!prof) {
1583 status = -ENOENT;
1584 goto out;
1585 }
1586
1587 /* prof becomes invalid after the call */
1588 status = ice_flow_rem_prof_sync(hw, blk, prof);
1589
1590 out:
1591 mutex_unlock(&hw->fl_profs_locks[blk]);
1592
1593 return status;
1594 }
1595
1596 /**
1597 * ice_flow_add_entry - Add a flow entry
1598 * @hw: pointer to the HW struct
1599 * @blk: classification stage
1600 * @prof_id: ID of the profile to add a new flow entry to
1601 * @entry_id: unique ID to identify this flow entry
1602 * @vsi_handle: software VSI handle for the flow entry
1603 * @prio: priority of the flow entry
1604 * @data: pointer to a data buffer containing flow entry's match values/masks
1605 * @entry_h: pointer to buffer that receives the new flow entry's handle
1606 */
1607 int
ice_flow_add_entry(struct ice_hw * hw,enum ice_block blk,u64 prof_id,u64 entry_id,u16 vsi_handle,enum ice_flow_priority prio,void * data,u64 * entry_h)1608 ice_flow_add_entry(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
1609 u64 entry_id, u16 vsi_handle, enum ice_flow_priority prio,
1610 void *data, u64 *entry_h)
1611 {
1612 struct ice_flow_entry *e = NULL;
1613 struct ice_flow_prof *prof;
1614 int status;
1615
1616 /* No flow entry data is expected for RSS */
1617 if (!entry_h || (!data && blk != ICE_BLK_RSS))
1618 return -EINVAL;
1619
1620 if (!ice_is_vsi_valid(hw, vsi_handle))
1621 return -EINVAL;
1622
1623 mutex_lock(&hw->fl_profs_locks[blk]);
1624
1625 prof = ice_flow_find_prof_id(hw, blk, prof_id);
1626 if (!prof) {
1627 status = -ENOENT;
1628 } else {
1629 /* Allocate memory for the entry being added and associate
1630 * the VSI to the found flow profile
1631 */
1632 e = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*e), GFP_KERNEL);
1633 if (!e)
1634 status = -ENOMEM;
1635 else
1636 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
1637 }
1638
1639 mutex_unlock(&hw->fl_profs_locks[blk]);
1640 if (status)
1641 goto out;
1642
1643 e->id = entry_id;
1644 e->vsi_handle = vsi_handle;
1645 e->prof = prof;
1646 e->priority = prio;
1647
1648 switch (blk) {
1649 case ICE_BLK_FD:
1650 case ICE_BLK_RSS:
1651 break;
1652 default:
1653 status = -EOPNOTSUPP;
1654 goto out;
1655 }
1656
1657 mutex_lock(&prof->entries_lock);
1658 list_add(&e->l_entry, &prof->entries);
1659 mutex_unlock(&prof->entries_lock);
1660
1661 *entry_h = ICE_FLOW_ENTRY_HNDL(e);
1662
1663 out:
1664 if (status && e) {
1665 if (e->entry)
1666 devm_kfree(ice_hw_to_dev(hw), e->entry);
1667 devm_kfree(ice_hw_to_dev(hw), e);
1668 }
1669
1670 return status;
1671 }
1672
1673 /**
1674 * ice_flow_rem_entry - Remove a flow entry
1675 * @hw: pointer to the HW struct
1676 * @blk: classification stage
1677 * @entry_h: handle to the flow entry to be removed
1678 */
ice_flow_rem_entry(struct ice_hw * hw,enum ice_block blk,u64 entry_h)1679 int ice_flow_rem_entry(struct ice_hw *hw, enum ice_block blk, u64 entry_h)
1680 {
1681 struct ice_flow_entry *entry;
1682 struct ice_flow_prof *prof;
1683 int status = 0;
1684
1685 if (entry_h == ICE_FLOW_ENTRY_HANDLE_INVAL)
1686 return -EINVAL;
1687
1688 entry = ICE_FLOW_ENTRY_PTR(entry_h);
1689
1690 /* Retain the pointer to the flow profile as the entry will be freed */
1691 prof = entry->prof;
1692
1693 if (prof) {
1694 mutex_lock(&prof->entries_lock);
1695 status = ice_flow_rem_entry_sync(hw, blk, entry);
1696 mutex_unlock(&prof->entries_lock);
1697 }
1698
1699 return status;
1700 }
1701
1702 /**
1703 * ice_flow_set_fld_ext - specifies locations of field from entry's input buffer
1704 * @seg: packet segment the field being set belongs to
1705 * @fld: field to be set
1706 * @field_type: type of the field
1707 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
1708 * entry's input buffer
1709 * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's
1710 * input buffer
1711 * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from
1712 * entry's input buffer
1713 *
1714 * This helper function stores information of a field being matched, including
1715 * the type of the field and the locations of the value to match, the mask, and
1716 * the upper-bound value in the start of the input buffer for a flow entry.
1717 * This function should only be used for fixed-size data structures.
1718 *
1719 * This function also opportunistically determines the protocol headers to be
1720 * present based on the fields being set. Some fields cannot be used alone to
1721 * determine the protocol headers present. Sometimes, fields for particular
1722 * protocol headers are not matched. In those cases, the protocol headers
1723 * must be explicitly set.
1724 */
1725 static void
ice_flow_set_fld_ext(struct ice_flow_seg_info * seg,enum ice_flow_field fld,enum ice_flow_fld_match_type field_type,u16 val_loc,u16 mask_loc,u16 last_loc)1726 ice_flow_set_fld_ext(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
1727 enum ice_flow_fld_match_type field_type, u16 val_loc,
1728 u16 mask_loc, u16 last_loc)
1729 {
1730 u64 bit = BIT_ULL(fld);
1731
1732 seg->match |= bit;
1733 if (field_type == ICE_FLOW_FLD_TYPE_RANGE)
1734 seg->range |= bit;
1735
1736 seg->fields[fld].type = field_type;
1737 seg->fields[fld].src.val = val_loc;
1738 seg->fields[fld].src.mask = mask_loc;
1739 seg->fields[fld].src.last = last_loc;
1740
1741 ICE_FLOW_SET_HDRS(seg, ice_flds_info[fld].hdr);
1742 }
1743
1744 /**
1745 * ice_flow_set_fld - specifies locations of field from entry's input buffer
1746 * @seg: packet segment the field being set belongs to
1747 * @fld: field to be set
1748 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
1749 * entry's input buffer
1750 * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's
1751 * input buffer
1752 * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from
1753 * entry's input buffer
1754 * @range: indicate if field being matched is to be in a range
1755 *
1756 * This function specifies the locations, in the form of byte offsets from the
1757 * start of the input buffer for a flow entry, from where the value to match,
1758 * the mask value, and upper value can be extracted. These locations are then
1759 * stored in the flow profile. When adding a flow entry associated with the
1760 * flow profile, these locations will be used to quickly extract the values and
1761 * create the content of a match entry. This function should only be used for
1762 * fixed-size data structures.
1763 */
1764 void
ice_flow_set_fld(struct ice_flow_seg_info * seg,enum ice_flow_field fld,u16 val_loc,u16 mask_loc,u16 last_loc,bool range)1765 ice_flow_set_fld(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
1766 u16 val_loc, u16 mask_loc, u16 last_loc, bool range)
1767 {
1768 enum ice_flow_fld_match_type t = range ?
1769 ICE_FLOW_FLD_TYPE_RANGE : ICE_FLOW_FLD_TYPE_REG;
1770
1771 ice_flow_set_fld_ext(seg, fld, t, val_loc, mask_loc, last_loc);
1772 }
1773
1774 /**
1775 * ice_flow_add_fld_raw - sets locations of a raw field from entry's input buf
1776 * @seg: packet segment the field being set belongs to
1777 * @off: offset of the raw field from the beginning of the segment in bytes
1778 * @len: length of the raw pattern to be matched
1779 * @val_loc: location of the value to match from entry's input buffer
1780 * @mask_loc: location of mask value from entry's input buffer
1781 *
1782 * This function specifies the offset of the raw field to be match from the
1783 * beginning of the specified packet segment, and the locations, in the form of
1784 * byte offsets from the start of the input buffer for a flow entry, from where
1785 * the value to match and the mask value to be extracted. These locations are
1786 * then stored in the flow profile. When adding flow entries to the associated
1787 * flow profile, these locations can be used to quickly extract the values to
1788 * create the content of a match entry. This function should only be used for
1789 * fixed-size data structures.
1790 */
1791 void
ice_flow_add_fld_raw(struct ice_flow_seg_info * seg,u16 off,u8 len,u16 val_loc,u16 mask_loc)1792 ice_flow_add_fld_raw(struct ice_flow_seg_info *seg, u16 off, u8 len,
1793 u16 val_loc, u16 mask_loc)
1794 {
1795 if (seg->raws_cnt < ICE_FLOW_SEG_RAW_FLD_MAX) {
1796 seg->raws[seg->raws_cnt].off = off;
1797 seg->raws[seg->raws_cnt].info.type = ICE_FLOW_FLD_TYPE_SIZE;
1798 seg->raws[seg->raws_cnt].info.src.val = val_loc;
1799 seg->raws[seg->raws_cnt].info.src.mask = mask_loc;
1800 /* The "last" field is used to store the length of the field */
1801 seg->raws[seg->raws_cnt].info.src.last = len;
1802 }
1803
1804 /* Overflows of "raws" will be handled as an error condition later in
1805 * the flow when this information is processed.
1806 */
1807 seg->raws_cnt++;
1808 }
1809
1810 /**
1811 * ice_flow_rem_vsi_prof - remove VSI from flow profile
1812 * @hw: pointer to the hardware structure
1813 * @vsi_handle: software VSI handle
1814 * @prof_id: unique ID to identify this flow profile
1815 *
1816 * This function removes the flow entries associated to the input
1817 * VSI handle and disassociate the VSI from the flow profile.
1818 */
ice_flow_rem_vsi_prof(struct ice_hw * hw,u16 vsi_handle,u64 prof_id)1819 int ice_flow_rem_vsi_prof(struct ice_hw *hw, u16 vsi_handle, u64 prof_id)
1820 {
1821 struct ice_flow_prof *prof;
1822 int status = 0;
1823
1824 if (!ice_is_vsi_valid(hw, vsi_handle))
1825 return -EINVAL;
1826
1827 /* find flow profile pointer with input package block and profile ID */
1828 prof = ice_flow_find_prof_id(hw, ICE_BLK_FD, prof_id);
1829 if (!prof) {
1830 ice_debug(hw, ICE_DBG_PKG, "Cannot find flow profile id=%llu\n",
1831 prof_id);
1832 return -ENOENT;
1833 }
1834
1835 /* Remove all remaining flow entries before removing the flow profile */
1836 if (!list_empty(&prof->entries)) {
1837 struct ice_flow_entry *e, *t;
1838
1839 mutex_lock(&prof->entries_lock);
1840 list_for_each_entry_safe(e, t, &prof->entries, l_entry) {
1841 if (e->vsi_handle != vsi_handle)
1842 continue;
1843
1844 status = ice_flow_rem_entry_sync(hw, ICE_BLK_FD, e);
1845 if (status)
1846 break;
1847 }
1848 mutex_unlock(&prof->entries_lock);
1849 }
1850 if (status)
1851 return status;
1852
1853 /* disassociate the flow profile from sw VSI handle */
1854 status = ice_flow_disassoc_prof(hw, ICE_BLK_FD, prof, vsi_handle);
1855 if (status)
1856 ice_debug(hw, ICE_DBG_PKG, "ice_flow_disassoc_prof() failed with status=%d\n",
1857 status);
1858 return status;
1859 }
1860
1861 #define ICE_FLOW_RSS_SEG_HDR_L2_MASKS \
1862 (ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN)
1863
1864 #define ICE_FLOW_RSS_SEG_HDR_L3_MASKS \
1865 (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6)
1866
1867 #define ICE_FLOW_RSS_SEG_HDR_L4_MASKS \
1868 (ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_SCTP)
1869
1870 #define ICE_FLOW_RSS_SEG_HDR_VAL_MASKS \
1871 (ICE_FLOW_RSS_SEG_HDR_L2_MASKS | \
1872 ICE_FLOW_RSS_SEG_HDR_L3_MASKS | \
1873 ICE_FLOW_RSS_SEG_HDR_L4_MASKS)
1874
1875 /**
1876 * ice_flow_set_rss_seg_info - setup packet segments for RSS
1877 * @segs: pointer to the flow field segment(s)
1878 * @hash_fields: fields to be hashed on for the segment(s)
1879 * @flow_hdr: protocol header fields within a packet segment
1880 *
1881 * Helper function to extract fields from hash bitmap and use flow
1882 * header value to set flow field segment for further use in flow
1883 * profile entry or removal.
1884 */
1885 static int
ice_flow_set_rss_seg_info(struct ice_flow_seg_info * segs,u64 hash_fields,u32 flow_hdr)1886 ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u64 hash_fields,
1887 u32 flow_hdr)
1888 {
1889 u64 val;
1890 u8 i;
1891
1892 for_each_set_bit(i, (unsigned long *)&hash_fields,
1893 ICE_FLOW_FIELD_IDX_MAX)
1894 ice_flow_set_fld(segs, (enum ice_flow_field)i,
1895 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
1896 ICE_FLOW_FLD_OFF_INVAL, false);
1897
1898 ICE_FLOW_SET_HDRS(segs, flow_hdr);
1899
1900 if (segs->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS &
1901 ~ICE_FLOW_RSS_HDRS_INNER_MASK & ~ICE_FLOW_SEG_HDR_IPV_OTHER)
1902 return -EINVAL;
1903
1904 val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS);
1905 if (val && !is_power_of_2(val))
1906 return -EIO;
1907
1908 val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS);
1909 if (val && !is_power_of_2(val))
1910 return -EIO;
1911
1912 return 0;
1913 }
1914
1915 /**
1916 * ice_rem_vsi_rss_list - remove VSI from RSS list
1917 * @hw: pointer to the hardware structure
1918 * @vsi_handle: software VSI handle
1919 *
1920 * Remove the VSI from all RSS configurations in the list.
1921 */
ice_rem_vsi_rss_list(struct ice_hw * hw,u16 vsi_handle)1922 void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle)
1923 {
1924 struct ice_rss_cfg *r, *tmp;
1925
1926 if (list_empty(&hw->rss_list_head))
1927 return;
1928
1929 mutex_lock(&hw->rss_locks);
1930 list_for_each_entry_safe(r, tmp, &hw->rss_list_head, l_entry)
1931 if (test_and_clear_bit(vsi_handle, r->vsis))
1932 if (bitmap_empty(r->vsis, ICE_MAX_VSI)) {
1933 list_del(&r->l_entry);
1934 devm_kfree(ice_hw_to_dev(hw), r);
1935 }
1936 mutex_unlock(&hw->rss_locks);
1937 }
1938
1939 /**
1940 * ice_rem_vsi_rss_cfg - remove RSS configurations associated with VSI
1941 * @hw: pointer to the hardware structure
1942 * @vsi_handle: software VSI handle
1943 *
1944 * This function will iterate through all flow profiles and disassociate
1945 * the VSI from that profile. If the flow profile has no VSIs it will
1946 * be removed.
1947 */
ice_rem_vsi_rss_cfg(struct ice_hw * hw,u16 vsi_handle)1948 int ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle)
1949 {
1950 const enum ice_block blk = ICE_BLK_RSS;
1951 struct ice_flow_prof *p, *t;
1952 int status = 0;
1953
1954 if (!ice_is_vsi_valid(hw, vsi_handle))
1955 return -EINVAL;
1956
1957 if (list_empty(&hw->fl_profs[blk]))
1958 return 0;
1959
1960 mutex_lock(&hw->rss_locks);
1961 list_for_each_entry_safe(p, t, &hw->fl_profs[blk], l_entry)
1962 if (test_bit(vsi_handle, p->vsis)) {
1963 status = ice_flow_disassoc_prof(hw, blk, p, vsi_handle);
1964 if (status)
1965 break;
1966
1967 if (bitmap_empty(p->vsis, ICE_MAX_VSI)) {
1968 status = ice_flow_rem_prof(hw, blk, p->id);
1969 if (status)
1970 break;
1971 }
1972 }
1973 mutex_unlock(&hw->rss_locks);
1974
1975 return status;
1976 }
1977
1978 /**
1979 * ice_rem_rss_list - remove RSS configuration from list
1980 * @hw: pointer to the hardware structure
1981 * @vsi_handle: software VSI handle
1982 * @prof: pointer to flow profile
1983 *
1984 * Assumption: lock has already been acquired for RSS list
1985 */
1986 static void
ice_rem_rss_list(struct ice_hw * hw,u16 vsi_handle,struct ice_flow_prof * prof)1987 ice_rem_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof)
1988 {
1989 struct ice_rss_cfg *r, *tmp;
1990
1991 /* Search for RSS hash fields associated to the VSI that match the
1992 * hash configurations associated to the flow profile. If found
1993 * remove from the RSS entry list of the VSI context and delete entry.
1994 */
1995 list_for_each_entry_safe(r, tmp, &hw->rss_list_head, l_entry)
1996 if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
1997 r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
1998 clear_bit(vsi_handle, r->vsis);
1999 if (bitmap_empty(r->vsis, ICE_MAX_VSI)) {
2000 list_del(&r->l_entry);
2001 devm_kfree(ice_hw_to_dev(hw), r);
2002 }
2003 return;
2004 }
2005 }
2006
2007 /**
2008 * ice_add_rss_list - add RSS configuration to list
2009 * @hw: pointer to the hardware structure
2010 * @vsi_handle: software VSI handle
2011 * @prof: pointer to flow profile
2012 *
2013 * Assumption: lock has already been acquired for RSS list
2014 */
2015 static int
ice_add_rss_list(struct ice_hw * hw,u16 vsi_handle,struct ice_flow_prof * prof)2016 ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof)
2017 {
2018 struct ice_rss_cfg *r, *rss_cfg;
2019
2020 list_for_each_entry(r, &hw->rss_list_head, l_entry)
2021 if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
2022 r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
2023 set_bit(vsi_handle, r->vsis);
2024 return 0;
2025 }
2026
2027 rss_cfg = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*rss_cfg),
2028 GFP_KERNEL);
2029 if (!rss_cfg)
2030 return -ENOMEM;
2031
2032 rss_cfg->hashed_flds = prof->segs[prof->segs_cnt - 1].match;
2033 rss_cfg->packet_hdr = prof->segs[prof->segs_cnt - 1].hdrs;
2034 set_bit(vsi_handle, rss_cfg->vsis);
2035
2036 list_add_tail(&rss_cfg->l_entry, &hw->rss_list_head);
2037
2038 return 0;
2039 }
2040
2041 #define ICE_FLOW_PROF_HASH_S 0
2042 #define ICE_FLOW_PROF_HASH_M (0xFFFFFFFFULL << ICE_FLOW_PROF_HASH_S)
2043 #define ICE_FLOW_PROF_HDR_S 32
2044 #define ICE_FLOW_PROF_HDR_M (0x3FFFFFFFULL << ICE_FLOW_PROF_HDR_S)
2045 #define ICE_FLOW_PROF_ENCAP_S 63
2046 #define ICE_FLOW_PROF_ENCAP_M (BIT_ULL(ICE_FLOW_PROF_ENCAP_S))
2047
2048 #define ICE_RSS_OUTER_HEADERS 1
2049 #define ICE_RSS_INNER_HEADERS 2
2050
2051 /* Flow profile ID format:
2052 * [0:31] - Packet match fields
2053 * [32:62] - Protocol header
2054 * [63] - Encapsulation flag, 0 if non-tunneled, 1 if tunneled
2055 */
2056 #define ICE_FLOW_GEN_PROFID(hash, hdr, segs_cnt) \
2057 ((u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \
2058 (((u64)(hdr) << ICE_FLOW_PROF_HDR_S) & ICE_FLOW_PROF_HDR_M) | \
2059 ((u8)((segs_cnt) - 1) ? ICE_FLOW_PROF_ENCAP_M : 0)))
2060
2061 /**
2062 * ice_add_rss_cfg_sync - add an RSS configuration
2063 * @hw: pointer to the hardware structure
2064 * @vsi_handle: software VSI handle
2065 * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure
2066 * @addl_hdrs: protocol header fields
2067 * @segs_cnt: packet segment count
2068 *
2069 * Assumption: lock has already been acquired for RSS list
2070 */
2071 static int
ice_add_rss_cfg_sync(struct ice_hw * hw,u16 vsi_handle,u64 hashed_flds,u32 addl_hdrs,u8 segs_cnt)2072 ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
2073 u32 addl_hdrs, u8 segs_cnt)
2074 {
2075 const enum ice_block blk = ICE_BLK_RSS;
2076 struct ice_flow_prof *prof = NULL;
2077 struct ice_flow_seg_info *segs;
2078 int status;
2079
2080 if (!segs_cnt || segs_cnt > ICE_FLOW_SEG_MAX)
2081 return -EINVAL;
2082
2083 segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL);
2084 if (!segs)
2085 return -ENOMEM;
2086
2087 /* Construct the packet segment info from the hashed fields */
2088 status = ice_flow_set_rss_seg_info(&segs[segs_cnt - 1], hashed_flds,
2089 addl_hdrs);
2090 if (status)
2091 goto exit;
2092
2093 /* Search for a flow profile that has matching headers, hash fields
2094 * and has the input VSI associated to it. If found, no further
2095 * operations required and exit.
2096 */
2097 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
2098 vsi_handle,
2099 ICE_FLOW_FIND_PROF_CHK_FLDS |
2100 ICE_FLOW_FIND_PROF_CHK_VSI);
2101 if (prof)
2102 goto exit;
2103
2104 /* Check if a flow profile exists with the same protocol headers and
2105 * associated with the input VSI. If so disassociate the VSI from
2106 * this profile. The VSI will be added to a new profile created with
2107 * the protocol header and new hash field configuration.
2108 */
2109 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
2110 vsi_handle, ICE_FLOW_FIND_PROF_CHK_VSI);
2111 if (prof) {
2112 status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle);
2113 if (!status)
2114 ice_rem_rss_list(hw, vsi_handle, prof);
2115 else
2116 goto exit;
2117
2118 /* Remove profile if it has no VSIs associated */
2119 if (bitmap_empty(prof->vsis, ICE_MAX_VSI)) {
2120 status = ice_flow_rem_prof(hw, blk, prof->id);
2121 if (status)
2122 goto exit;
2123 }
2124 }
2125
2126 /* Search for a profile that has same match fields only. If this
2127 * exists then associate the VSI to this profile.
2128 */
2129 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
2130 vsi_handle,
2131 ICE_FLOW_FIND_PROF_CHK_FLDS);
2132 if (prof) {
2133 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
2134 if (!status)
2135 status = ice_add_rss_list(hw, vsi_handle, prof);
2136 goto exit;
2137 }
2138
2139 /* Create a new flow profile with generated profile and packet
2140 * segment information.
2141 */
2142 status = ice_flow_add_prof(hw, blk, ICE_FLOW_RX,
2143 ICE_FLOW_GEN_PROFID(hashed_flds,
2144 segs[segs_cnt - 1].hdrs,
2145 segs_cnt),
2146 segs, segs_cnt, &prof);
2147 if (status)
2148 goto exit;
2149
2150 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
2151 /* If association to a new flow profile failed then this profile can
2152 * be removed.
2153 */
2154 if (status) {
2155 ice_flow_rem_prof(hw, blk, prof->id);
2156 goto exit;
2157 }
2158
2159 status = ice_add_rss_list(hw, vsi_handle, prof);
2160
2161 exit:
2162 kfree(segs);
2163 return status;
2164 }
2165
2166 /**
2167 * ice_add_rss_cfg - add an RSS configuration with specified hashed fields
2168 * @hw: pointer to the hardware structure
2169 * @vsi_handle: software VSI handle
2170 * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure
2171 * @addl_hdrs: protocol header fields
2172 *
2173 * This function will generate a flow profile based on fields associated with
2174 * the input fields to hash on, the flow type and use the VSI number to add
2175 * a flow entry to the profile.
2176 */
2177 int
ice_add_rss_cfg(struct ice_hw * hw,u16 vsi_handle,u64 hashed_flds,u32 addl_hdrs)2178 ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
2179 u32 addl_hdrs)
2180 {
2181 int status;
2182
2183 if (hashed_flds == ICE_HASH_INVALID ||
2184 !ice_is_vsi_valid(hw, vsi_handle))
2185 return -EINVAL;
2186
2187 mutex_lock(&hw->rss_locks);
2188 status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs,
2189 ICE_RSS_OUTER_HEADERS);
2190 if (!status)
2191 status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds,
2192 addl_hdrs, ICE_RSS_INNER_HEADERS);
2193 mutex_unlock(&hw->rss_locks);
2194
2195 return status;
2196 }
2197
2198 /**
2199 * ice_rem_rss_cfg_sync - remove an existing RSS configuration
2200 * @hw: pointer to the hardware structure
2201 * @vsi_handle: software VSI handle
2202 * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove
2203 * @addl_hdrs: Protocol header fields within a packet segment
2204 * @segs_cnt: packet segment count
2205 *
2206 * Assumption: lock has already been acquired for RSS list
2207 */
2208 static int
ice_rem_rss_cfg_sync(struct ice_hw * hw,u16 vsi_handle,u64 hashed_flds,u32 addl_hdrs,u8 segs_cnt)2209 ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
2210 u32 addl_hdrs, u8 segs_cnt)
2211 {
2212 const enum ice_block blk = ICE_BLK_RSS;
2213 struct ice_flow_seg_info *segs;
2214 struct ice_flow_prof *prof;
2215 int status;
2216
2217 segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL);
2218 if (!segs)
2219 return -ENOMEM;
2220
2221 /* Construct the packet segment info from the hashed fields */
2222 status = ice_flow_set_rss_seg_info(&segs[segs_cnt - 1], hashed_flds,
2223 addl_hdrs);
2224 if (status)
2225 goto out;
2226
2227 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
2228 vsi_handle,
2229 ICE_FLOW_FIND_PROF_CHK_FLDS);
2230 if (!prof) {
2231 status = -ENOENT;
2232 goto out;
2233 }
2234
2235 status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle);
2236 if (status)
2237 goto out;
2238
2239 /* Remove RSS configuration from VSI context before deleting
2240 * the flow profile.
2241 */
2242 ice_rem_rss_list(hw, vsi_handle, prof);
2243
2244 if (bitmap_empty(prof->vsis, ICE_MAX_VSI))
2245 status = ice_flow_rem_prof(hw, blk, prof->id);
2246
2247 out:
2248 kfree(segs);
2249 return status;
2250 }
2251
2252 /**
2253 * ice_rem_rss_cfg - remove an existing RSS config with matching hashed fields
2254 * @hw: pointer to the hardware structure
2255 * @vsi_handle: software VSI handle
2256 * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove
2257 * @addl_hdrs: Protocol header fields within a packet segment
2258 *
2259 * This function will lookup the flow profile based on the input
2260 * hash field bitmap, iterate through the profile entry list of
2261 * that profile and find entry associated with input VSI to be
2262 * removed. Calls are made to underlying flow s which will APIs
2263 * turn build or update buffers for RSS XLT1 section.
2264 */
2265 int __maybe_unused
ice_rem_rss_cfg(struct ice_hw * hw,u16 vsi_handle,u64 hashed_flds,u32 addl_hdrs)2266 ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
2267 u32 addl_hdrs)
2268 {
2269 int status;
2270
2271 if (hashed_flds == ICE_HASH_INVALID ||
2272 !ice_is_vsi_valid(hw, vsi_handle))
2273 return -EINVAL;
2274
2275 mutex_lock(&hw->rss_locks);
2276 status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs,
2277 ICE_RSS_OUTER_HEADERS);
2278 if (!status)
2279 status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds,
2280 addl_hdrs, ICE_RSS_INNER_HEADERS);
2281 mutex_unlock(&hw->rss_locks);
2282
2283 return status;
2284 }
2285
2286 /* Mapping of AVF hash bit fields to an L3-L4 hash combination.
2287 * As the ice_flow_avf_hdr_field represent individual bit shifts in a hash,
2288 * convert its values to their appropriate flow L3, L4 values.
2289 */
2290 #define ICE_FLOW_AVF_RSS_IPV4_MASKS \
2291 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_OTHER) | \
2292 BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV4))
2293 #define ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS \
2294 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK) | \
2295 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP))
2296 #define ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS \
2297 (BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP) | \
2298 BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP) | \
2299 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_UDP))
2300 #define ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS \
2301 (ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS | \
2302 ICE_FLOW_AVF_RSS_IPV4_MASKS | BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP))
2303
2304 #define ICE_FLOW_AVF_RSS_IPV6_MASKS \
2305 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_OTHER) | \
2306 BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV6))
2307 #define ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS \
2308 (BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP) | \
2309 BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP) | \
2310 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_UDP))
2311 #define ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS \
2312 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK) | \
2313 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP))
2314 #define ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS \
2315 (ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS | \
2316 ICE_FLOW_AVF_RSS_IPV6_MASKS | BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP))
2317
2318 /**
2319 * ice_add_avf_rss_cfg - add an RSS configuration for AVF driver
2320 * @hw: pointer to the hardware structure
2321 * @vsi_handle: software VSI handle
2322 * @avf_hash: hash bit fields (ICE_AVF_FLOW_FIELD_*) to configure
2323 *
2324 * This function will take the hash bitmap provided by the AVF driver via a
2325 * message, convert it to ICE-compatible values, and configure RSS flow
2326 * profiles.
2327 */
ice_add_avf_rss_cfg(struct ice_hw * hw,u16 vsi_handle,u64 avf_hash)2328 int ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 avf_hash)
2329 {
2330 int status = 0;
2331 u64 hash_flds;
2332
2333 if (avf_hash == ICE_AVF_FLOW_FIELD_INVALID ||
2334 !ice_is_vsi_valid(hw, vsi_handle))
2335 return -EINVAL;
2336
2337 /* Make sure no unsupported bits are specified */
2338 if (avf_hash & ~(ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS |
2339 ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS))
2340 return -EIO;
2341
2342 hash_flds = avf_hash;
2343
2344 /* Always create an L3 RSS configuration for any L4 RSS configuration */
2345 if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS)
2346 hash_flds |= ICE_FLOW_AVF_RSS_IPV4_MASKS;
2347
2348 if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS)
2349 hash_flds |= ICE_FLOW_AVF_RSS_IPV6_MASKS;
2350
2351 /* Create the corresponding RSS configuration for each valid hash bit */
2352 while (hash_flds) {
2353 u64 rss_hash = ICE_HASH_INVALID;
2354
2355 if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS) {
2356 if (hash_flds & ICE_FLOW_AVF_RSS_IPV4_MASKS) {
2357 rss_hash = ICE_FLOW_HASH_IPV4;
2358 hash_flds &= ~ICE_FLOW_AVF_RSS_IPV4_MASKS;
2359 } else if (hash_flds &
2360 ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS) {
2361 rss_hash = ICE_FLOW_HASH_IPV4 |
2362 ICE_FLOW_HASH_TCP_PORT;
2363 hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS;
2364 } else if (hash_flds &
2365 ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS) {
2366 rss_hash = ICE_FLOW_HASH_IPV4 |
2367 ICE_FLOW_HASH_UDP_PORT;
2368 hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS;
2369 } else if (hash_flds &
2370 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP)) {
2371 rss_hash = ICE_FLOW_HASH_IPV4 |
2372 ICE_FLOW_HASH_SCTP_PORT;
2373 hash_flds &=
2374 ~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP);
2375 }
2376 } else if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS) {
2377 if (hash_flds & ICE_FLOW_AVF_RSS_IPV6_MASKS) {
2378 rss_hash = ICE_FLOW_HASH_IPV6;
2379 hash_flds &= ~ICE_FLOW_AVF_RSS_IPV6_MASKS;
2380 } else if (hash_flds &
2381 ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS) {
2382 rss_hash = ICE_FLOW_HASH_IPV6 |
2383 ICE_FLOW_HASH_TCP_PORT;
2384 hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS;
2385 } else if (hash_flds &
2386 ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS) {
2387 rss_hash = ICE_FLOW_HASH_IPV6 |
2388 ICE_FLOW_HASH_UDP_PORT;
2389 hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS;
2390 } else if (hash_flds &
2391 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP)) {
2392 rss_hash = ICE_FLOW_HASH_IPV6 |
2393 ICE_FLOW_HASH_SCTP_PORT;
2394 hash_flds &=
2395 ~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP);
2396 }
2397 }
2398
2399 if (rss_hash == ICE_HASH_INVALID)
2400 return -EIO;
2401
2402 status = ice_add_rss_cfg(hw, vsi_handle, rss_hash,
2403 ICE_FLOW_SEG_HDR_NONE);
2404 if (status)
2405 break;
2406 }
2407
2408 return status;
2409 }
2410
2411 /**
2412 * ice_replay_rss_cfg - replay RSS configurations associated with VSI
2413 * @hw: pointer to the hardware structure
2414 * @vsi_handle: software VSI handle
2415 */
ice_replay_rss_cfg(struct ice_hw * hw,u16 vsi_handle)2416 int ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle)
2417 {
2418 struct ice_rss_cfg *r;
2419 int status = 0;
2420
2421 if (!ice_is_vsi_valid(hw, vsi_handle))
2422 return -EINVAL;
2423
2424 mutex_lock(&hw->rss_locks);
2425 list_for_each_entry(r, &hw->rss_list_head, l_entry) {
2426 if (test_bit(vsi_handle, r->vsis)) {
2427 status = ice_add_rss_cfg_sync(hw, vsi_handle,
2428 r->hashed_flds,
2429 r->packet_hdr,
2430 ICE_RSS_OUTER_HEADERS);
2431 if (status)
2432 break;
2433 status = ice_add_rss_cfg_sync(hw, vsi_handle,
2434 r->hashed_flds,
2435 r->packet_hdr,
2436 ICE_RSS_INNER_HEADERS);
2437 if (status)
2438 break;
2439 }
2440 }
2441 mutex_unlock(&hw->rss_locks);
2442
2443 return status;
2444 }
2445
2446 /**
2447 * ice_get_rss_cfg - returns hashed fields for the given header types
2448 * @hw: pointer to the hardware structure
2449 * @vsi_handle: software VSI handle
2450 * @hdrs: protocol header type
2451 *
2452 * This function will return the match fields of the first instance of flow
2453 * profile having the given header types and containing input VSI
2454 */
ice_get_rss_cfg(struct ice_hw * hw,u16 vsi_handle,u32 hdrs)2455 u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs)
2456 {
2457 u64 rss_hash = ICE_HASH_INVALID;
2458 struct ice_rss_cfg *r;
2459
2460 /* verify if the protocol header is non zero and VSI is valid */
2461 if (hdrs == ICE_FLOW_SEG_HDR_NONE || !ice_is_vsi_valid(hw, vsi_handle))
2462 return ICE_HASH_INVALID;
2463
2464 mutex_lock(&hw->rss_locks);
2465 list_for_each_entry(r, &hw->rss_list_head, l_entry)
2466 if (test_bit(vsi_handle, r->vsis) &&
2467 r->packet_hdr == hdrs) {
2468 rss_hash = r->hashed_flds;
2469 break;
2470 }
2471 mutex_unlock(&hw->rss_locks);
2472
2473 return rss_hash;
2474 }
2475