1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2001-2019
5 #include "ice_common.h"
8 /* Size of known protocol header fields */
9 #define ICE_FLOW_FLD_SZ_ETH_TYPE 2
10 #define ICE_FLOW_FLD_SZ_VLAN 2
11 #define ICE_FLOW_FLD_SZ_IPV4_ADDR 4
12 #define ICE_FLOW_FLD_SZ_IPV6_ADDR 16
13 #define ICE_FLOW_FLD_SZ_IP_DSCP 1
14 #define ICE_FLOW_FLD_SZ_IP_TTL 1
15 #define ICE_FLOW_FLD_SZ_IP_PROT 1
16 #define ICE_FLOW_FLD_SZ_PORT 2
17 #define ICE_FLOW_FLD_SZ_TCP_FLAGS 1
18 #define ICE_FLOW_FLD_SZ_ICMP_TYPE 1
19 #define ICE_FLOW_FLD_SZ_ICMP_CODE 1
20 #define ICE_FLOW_FLD_SZ_ARP_OPER 2
21 #define ICE_FLOW_FLD_SZ_GRE_KEYID 4
22 #define ICE_FLOW_FLD_SZ_GTP_TEID 4
23 #define ICE_FLOW_FLD_SZ_PPPOE_SESS_ID 2
25 /* Protocol header fields are extracted at the word boundaries as word-sized
26 * values. Specify the displacement value of some non-word-aligned fields needed
27 * to compute the offset of words containing the fields in the corresponding
28 * protocol headers. Displacement values are expressed in number of bits.
30 #define ICE_FLOW_FLD_IPV6_TTL_DSCP_DISP (-4)
31 #define ICE_FLOW_FLD_IPV6_TTL_PROT_DISP ((-2) * BITS_PER_BYTE)
32 #define ICE_FLOW_FLD_IPV6_TTL_TTL_DISP ((-1) * BITS_PER_BYTE)
34 /* Describe properties of a protocol header field */
35 struct ice_flow_field_info {
36 enum ice_flow_seg_hdr hdr;
37 s16 off; /* Offset from start of a protocol header, in bits */
38 u16 size; /* Size of fields in bits */
39 u16 mask; /* 16-bit mask for field */
42 #define ICE_FLOW_FLD_INFO(_hdr, _offset_bytes, _size_bytes) { \
44 .off = (_offset_bytes) * BITS_PER_BYTE, \
45 .size = (_size_bytes) * BITS_PER_BYTE, \
49 #define ICE_FLOW_FLD_INFO_MSK(_hdr, _offset_bytes, _size_bytes, _mask) { \
51 .off = (_offset_bytes) * BITS_PER_BYTE, \
52 .size = (_size_bytes) * BITS_PER_BYTE, \
56 /* Table containing properties of supported protocol header fields */
58 struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = {
60 /* ICE_FLOW_FIELD_IDX_ETH_DA */
61 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 0, ETH_ALEN),
62 /* ICE_FLOW_FIELD_IDX_ETH_SA */
63 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, ETH_ALEN, ETH_ALEN),
64 /* ICE_FLOW_FIELD_IDX_S_VLAN */
65 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 12, ICE_FLOW_FLD_SZ_VLAN),
66 /* ICE_FLOW_FIELD_IDX_C_VLAN */
67 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 14, ICE_FLOW_FLD_SZ_VLAN),
68 /* ICE_FLOW_FIELD_IDX_ETH_TYPE */
69 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 12, ICE_FLOW_FLD_SZ_ETH_TYPE),
71 /* ICE_FLOW_FIELD_IDX_IP_DSCP */
72 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 1, 1),
73 /* ICE_FLOW_FIELD_IDX_IP_TTL */
74 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NONE, 8, 1),
75 /* ICE_FLOW_FIELD_IDX_IP_PROT */
76 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NONE, 9, ICE_FLOW_FLD_SZ_IP_PROT),
77 /* ICE_FLOW_FIELD_IDX_IPV4_SA */
78 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 12, ICE_FLOW_FLD_SZ_IPV4_ADDR),
79 /* ICE_FLOW_FIELD_IDX_IPV4_DA */
80 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 16, ICE_FLOW_FLD_SZ_IPV4_ADDR),
82 /* ICE_FLOW_FIELD_IDX_IPV6_SA */
83 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, ICE_FLOW_FLD_SZ_IPV6_ADDR),
84 /* ICE_FLOW_FIELD_IDX_IPV6_DA */
85 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, ICE_FLOW_FLD_SZ_IPV6_ADDR),
87 /* ICE_FLOW_FIELD_IDX_TCP_SRC_PORT */
88 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 0, ICE_FLOW_FLD_SZ_PORT),
89 /* ICE_FLOW_FIELD_IDX_TCP_DST_PORT */
90 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 2, ICE_FLOW_FLD_SZ_PORT),
91 /* ICE_FLOW_FIELD_IDX_UDP_SRC_PORT */
92 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 0, ICE_FLOW_FLD_SZ_PORT),
93 /* ICE_FLOW_FIELD_IDX_UDP_DST_PORT */
94 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 2, ICE_FLOW_FLD_SZ_PORT),
95 /* ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT */
96 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 0, ICE_FLOW_FLD_SZ_PORT),
97 /* ICE_FLOW_FIELD_IDX_SCTP_DST_PORT */
98 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 2, ICE_FLOW_FLD_SZ_PORT),
99 /* ICE_FLOW_FIELD_IDX_TCP_FLAGS */
100 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 13, ICE_FLOW_FLD_SZ_TCP_FLAGS),
102 /* ICE_FLOW_FIELD_IDX_ARP_SIP */
103 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 14, ICE_FLOW_FLD_SZ_IPV4_ADDR),
104 /* ICE_FLOW_FIELD_IDX_ARP_DIP */
105 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 24, ICE_FLOW_FLD_SZ_IPV4_ADDR),
106 /* ICE_FLOW_FIELD_IDX_ARP_SHA */
107 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 8, ETH_ALEN),
108 /* ICE_FLOW_FIELD_IDX_ARP_DHA */
109 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 18, ETH_ALEN),
110 /* ICE_FLOW_FIELD_IDX_ARP_OP */
111 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 6, ICE_FLOW_FLD_SZ_ARP_OPER),
113 /* ICE_FLOW_FIELD_IDX_ICMP_TYPE */
114 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 0, ICE_FLOW_FLD_SZ_ICMP_TYPE),
115 /* ICE_FLOW_FIELD_IDX_ICMP_CODE */
116 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 1, ICE_FLOW_FLD_SZ_ICMP_CODE),
118 /* ICE_FLOW_FIELD_IDX_GRE_KEYID */
119 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GRE, 12, ICE_FLOW_FLD_SZ_GRE_KEYID),
121 /* ICE_FLOW_FIELD_IDX_GTPC_TEID */
122 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPC_TEID, 12,
123 ICE_FLOW_FLD_SZ_GTP_TEID),
124 /* ICE_FLOW_FIELD_IDX_GTPU_IP_TEID */
125 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_IP, 12,
126 ICE_FLOW_FLD_SZ_GTP_TEID),
127 /* ICE_FLOW_FIELD_IDX_GTPU_UP_TEID */
128 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_UP, 12,
129 ICE_FLOW_FLD_SZ_GTP_TEID),
130 /* ICE_FLOW_FIELD_IDX_GTPU_DWN_TEID */
131 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_DWN, 12,
132 ICE_FLOW_FLD_SZ_GTP_TEID),
134 /* ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID */
135 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_PPPOE, 2,
136 ICE_FLOW_FLD_SZ_PPPOE_SESS_ID),
139 /* Bitmaps indicating relevant packet types for a particular protocol header
141 * Packet types for packets with an Outer/First/Single MAC header
143 static const u32 ice_ptypes_mac_ofos[] = {
144 0xFDC00CC6, 0xBFBF7F7E, 0xF7EFDFDF, 0xFEFDFDFB,
145 0x03BF7F7E, 0x00000000, 0x00000000, 0x00000000,
146 0x000B0F0F, 0x00003000, 0x00000000, 0x00000000,
147 0x00000000, 0x00000000, 0x00000000, 0x00000000,
148 0x00000000, 0x00000000, 0x00000000, 0x00000000,
149 0x00000000, 0x00000000, 0x00000000, 0x00000000,
150 0x00000000, 0x00000000, 0x00000000, 0x00000000,
151 0x00000000, 0x00000000, 0x00000000, 0x00000000,
154 /* Packet types for packets with an Innermost/Last MAC VLAN header */
155 static const u32 ice_ptypes_macvlan_il[] = {
156 0x00000000, 0xBC000000, 0x000001DF, 0xF0000000,
157 0x0000077E, 0x00000000, 0x00000000, 0x00000000,
158 0x00000000, 0x00000000, 0x00000000, 0x00000000,
159 0x00000000, 0x00000000, 0x00000000, 0x00000000,
160 0x00000000, 0x00000000, 0x00000000, 0x00000000,
161 0x00000000, 0x00000000, 0x00000000, 0x00000000,
162 0x00000000, 0x00000000, 0x00000000, 0x00000000,
163 0x00000000, 0x00000000, 0x00000000, 0x00000000,
166 /* Packet types for packets with an Outer/First/Single IPv4 header */
167 static const u32 ice_ptypes_ipv4_ofos[] = {
168 0xFDC00000, 0xBFBF7F7E, 0x00EFDFDF, 0x00000000,
169 0x00000000, 0x00000000, 0x00000000, 0x00000000,
170 0x0003000F, 0x000FC000, 0x00000000, 0x00000000,
171 0x00000000, 0x00000000, 0x00000000, 0x00000000,
172 0x00000000, 0x00000000, 0x00000000, 0x00000000,
173 0x00000000, 0x00000000, 0x00000000, 0x00000000,
174 0x00000000, 0x00000000, 0x00000000, 0x00000000,
175 0x00000000, 0x00000000, 0x00000000, 0x00000000,
178 /* Packet types for packets with an Innermost/Last IPv4 header */
179 static const u32 ice_ptypes_ipv4_il[] = {
180 0xE0000000, 0xB807700E, 0x80000003, 0xE01DC03B,
181 0x0000000E, 0x00000000, 0x00000000, 0x00000000,
182 0x00000000, 0x00000000, 0x001FF800, 0x00000000,
183 0x00000000, 0x00000000, 0x00000000, 0x00000000,
184 0x00000000, 0x00000000, 0x00000000, 0x00000000,
185 0x00000000, 0x00000000, 0x00000000, 0x00000000,
186 0x00000000, 0x00000000, 0x00000000, 0x00000000,
187 0x00000000, 0x00000000, 0x00000000, 0x00000000,
190 /* Packet types for packets with an Outer/First/Single IPv6 header */
191 static const u32 ice_ptypes_ipv6_ofos[] = {
192 0x00000000, 0x00000000, 0xF7000000, 0xFEFDFDFB,
193 0x03BF7F7E, 0x00000000, 0x00000000, 0x00000000,
194 0x00080F00, 0x03F00000, 0x00000000, 0x00000000,
195 0x00000000, 0x00000000, 0x00000000, 0x00000000,
196 0x00000000, 0x00000000, 0x00000000, 0x00000000,
197 0x00000000, 0x00000000, 0x00000000, 0x00000000,
198 0x00000000, 0x00000000, 0x00000000, 0x00000000,
199 0x00000000, 0x00000000, 0x00000000, 0x00000000,
202 /* Packet types for packets with an Innermost/Last IPv6 header */
203 static const u32 ice_ptypes_ipv6_il[] = {
204 0x00000000, 0x03B80770, 0x00EE01DC, 0x0EE00000,
205 0x03B80770, 0x00000000, 0x00000000, 0x00000000,
206 0x00000000, 0x00000000, 0x7FE00000, 0x00000000,
207 0x00000000, 0x00000000, 0x00000000, 0x00000000,
208 0x00000000, 0x00000000, 0x00000000, 0x00000000,
209 0x00000000, 0x00000000, 0x00000000, 0x00000000,
210 0x00000000, 0x00000000, 0x00000000, 0x00000000,
211 0x00000000, 0x00000000, 0x00000000, 0x00000000,
214 /* Packet types for packets with an Outermost/First ARP header */
215 static const u32 ice_ptypes_arp_of[] = {
216 0x00000800, 0x00000000, 0x00000000, 0x00000000,
217 0x00000000, 0x00000000, 0x00000000, 0x00000000,
218 0x00000000, 0x00000000, 0x00000000, 0x00000000,
219 0x00000000, 0x00000000, 0x00000000, 0x00000000,
220 0x00000000, 0x00000000, 0x00000000, 0x00000000,
221 0x00000000, 0x00000000, 0x00000000, 0x00000000,
222 0x00000000, 0x00000000, 0x00000000, 0x00000000,
223 0x00000000, 0x00000000, 0x00000000, 0x00000000,
226 /* UDP Packet types for non-tunneled packets or tunneled
227 * packets with inner UDP.
229 static const u32 ice_ptypes_udp_il[] = {
230 0x81000000, 0x20204040, 0x04000010, 0x80810102,
231 0x00200040, 0x00000000, 0x00000000, 0x00000000,
232 0x00000000, 0x00410000, 0x10842000, 0x00000000,
233 0x00000000, 0x00000000, 0x00000000, 0x00000000,
234 0x00000000, 0x00000000, 0x00000000, 0x00000000,
235 0x00000000, 0x00000000, 0x00000000, 0x00000000,
236 0x00000000, 0x00000000, 0x00000000, 0x00000000,
237 0x00000000, 0x00000000, 0x00000000, 0x00000000,
240 /* Packet types for packets with an Innermost/Last TCP header */
241 static const u32 ice_ptypes_tcp_il[] = {
242 0x04000000, 0x80810102, 0x10000040, 0x02040408,
243 0x00810102, 0x00000000, 0x00000000, 0x00000000,
244 0x00000000, 0x00820000, 0x21084000, 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,
252 /* Packet types for packets with an Innermost/Last SCTP header */
253 static const u32 ice_ptypes_sctp_il[] = {
254 0x08000000, 0x01020204, 0x20000081, 0x04080810,
255 0x01020204, 0x00000000, 0x00000000, 0x00000000,
256 0x00000000, 0x01040000, 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,
264 /* Packet types for packets with an Outermost/First ICMP header */
265 static const u32 ice_ptypes_icmp_of[] = {
266 0x10000000, 0x00000000, 0x00000000, 0x00000000,
267 0x00000000, 0x00000000, 0x00000000, 0x00000000,
268 0x00000000, 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,
276 /* Packet types for packets with an Innermost/Last ICMP header */
277 static const u32 ice_ptypes_icmp_il[] = {
278 0x00000000, 0x02040408, 0x40810102, 0x08101020,
279 0x02040408, 0x00000000, 0x00000000, 0x00000000,
280 0x00000000, 0x00000000, 0x42108000, 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,
288 /* Packet types for packets with an Outermost/First GRE header */
289 static const u32 ice_ptypes_gre_of[] = {
290 0x00000000, 0xBFBF7800, 0x00EFDFDF, 0xFEFDE000,
291 0x03BF7F7E, 0x00000000, 0x00000000, 0x00000000,
292 0x00000000, 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,
300 /* Packet types for packets with an Innermost/Last MAC header */
301 static const u32 ice_ptypes_mac_il[] = {
302 0x00000000, 0x00000000, 0x00EFDE00, 0x00000000,
303 0x03BF7800, 0x00000000, 0x00000000, 0x00000000,
304 0x00000000, 0x00000000, 0x00000000, 0x00000000,
305 0x00000000, 0x00000000, 0x00000000, 0x00000000,
306 0x00000000, 0x00000000, 0x00000000, 0x00000000,
307 0x00000000, 0x00000000, 0x00000000, 0x00000000,
308 0x00000000, 0x00000000, 0x00000000, 0x00000000,
309 0x00000000, 0x00000000, 0x00000000, 0x00000000,
312 /* Packet types for GTPC */
313 static const u32 ice_ptypes_gtpc[] = {
314 0x00000000, 0x00000000, 0x00000000, 0x00000000,
315 0x00000000, 0x00000000, 0x00000000, 0x00000000,
316 0x00000000, 0x00000000, 0x00000180, 0x00000000,
317 0x00000000, 0x00000000, 0x00000000, 0x00000000,
318 0x00000000, 0x00000000, 0x00000000, 0x00000000,
319 0x00000000, 0x00000000, 0x00000000, 0x00000000,
320 0x00000000, 0x00000000, 0x00000000, 0x00000000,
321 0x00000000, 0x00000000, 0x00000000, 0x00000000,
324 /* Packet types for GTPC with TEID */
325 static const u32 ice_ptypes_gtpc_tid[] = {
326 0x00000000, 0x00000000, 0x00000000, 0x00000000,
327 0x00000000, 0x00000000, 0x00000000, 0x00000000,
328 0x00000000, 0x00000000, 0x00000060, 0x00000000,
329 0x00000000, 0x00000000, 0x00000000, 0x00000000,
330 0x00000000, 0x00000000, 0x00000000, 0x00000000,
331 0x00000000, 0x00000000, 0x00000000, 0x00000000,
332 0x00000000, 0x00000000, 0x00000000, 0x00000000,
333 0x00000000, 0x00000000, 0x00000000, 0x00000000,
336 /* Packet types for GTPU */
337 static const u32 ice_ptypes_gtpu[] = {
338 0x00000000, 0x00000000, 0x00000000, 0x00000000,
339 0x00000000, 0x00000000, 0x00000000, 0x00000000,
340 0x00000000, 0x00000000, 0x7FFFF800, 0x00000000,
341 0x00000000, 0x00000000, 0x00000000, 0x00000000,
342 0x00000000, 0x00000000, 0x00000000, 0x00000000,
343 0x00000000, 0x00000000, 0x00000000, 0x00000000,
344 0x00000000, 0x00000000, 0x00000000, 0x00000000,
345 0x00000000, 0x00000000, 0x00000000, 0x00000000,
348 /* Packet types for pppoe */
349 static const u32 ice_ptypes_pppoe[] = {
350 0x00000000, 0x00000000, 0x00000000, 0x00000000,
351 0x00000000, 0x00000000, 0x00000000, 0x00000000,
352 0x00000000, 0x03FFF000, 0x00000000, 0x00000000,
353 0x00000000, 0x00000000, 0x00000000, 0x00000000,
354 0x00000000, 0x00000000, 0x00000000, 0x00000000,
355 0x00000000, 0x00000000, 0x00000000, 0x00000000,
356 0x00000000, 0x00000000, 0x00000000, 0x00000000,
357 0x00000000, 0x00000000, 0x00000000, 0x00000000,
360 /* Manage parameters and info. used during the creation of a flow profile */
361 struct ice_flow_prof_params {
363 u16 entry_length; /* # of bytes formatted entry will require */
365 struct ice_flow_prof *prof;
367 /* For ACL, the es[0] will have the data of ICE_RX_MDID_PKT_FLAGS_15_0
368 * This will give us the direction flags.
370 struct ice_fv_word es[ICE_MAX_FV_WORDS];
371 u16 mask[ICE_MAX_FV_WORDS];
372 ice_declare_bitmap(ptypes, ICE_FLOW_PTYPE_MAX);
375 #define ICE_FLOW_RSS_HDRS_INNER_MASK \
376 (ICE_FLOW_SEG_HDR_PPPOE | ICE_FLOW_SEG_HDR_GTPC | \
377 ICE_FLOW_SEG_HDR_GTPC_TEID | ICE_FLOW_SEG_HDR_GTPU)
379 #define ICE_FLOW_SEG_HDRS_L2_MASK \
380 (ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN)
381 #define ICE_FLOW_SEG_HDRS_L3_MASK \
382 (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6 | \
383 ICE_FLOW_SEG_HDR_ARP)
384 #define ICE_FLOW_SEG_HDRS_L4_MASK \
385 (ICE_FLOW_SEG_HDR_ICMP | ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | \
386 ICE_FLOW_SEG_HDR_SCTP)
389 * ice_flow_val_hdrs - validates packet segments for valid protocol headers
390 * @segs: array of one or more packet segments that describe the flow
391 * @segs_cnt: number of packet segments provided
393 static enum ice_status
394 ice_flow_val_hdrs(struct ice_flow_seg_info *segs, u8 segs_cnt)
398 for (i = 0; i < segs_cnt; i++) {
399 /* Multiple L3 headers */
400 if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK &&
401 !ice_is_pow2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK))
402 return ICE_ERR_PARAM;
404 /* Multiple L4 headers */
405 if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK &&
406 !ice_is_pow2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK))
407 return ICE_ERR_PARAM;
413 /* Sizes of fixed known protocol headers without header options */
414 #define ICE_FLOW_PROT_HDR_SZ_MAC 14
415 #define ICE_FLOW_PROT_HDR_SZ_MAC_VLAN (ICE_FLOW_PROT_HDR_SZ_MAC + 2)
416 #define ICE_FLOW_PROT_HDR_SZ_IPV4 20
417 #define ICE_FLOW_PROT_HDR_SZ_IPV6 40
418 #define ICE_FLOW_PROT_HDR_SZ_ARP 28
419 #define ICE_FLOW_PROT_HDR_SZ_ICMP 8
420 #define ICE_FLOW_PROT_HDR_SZ_TCP 20
421 #define ICE_FLOW_PROT_HDR_SZ_UDP 8
422 #define ICE_FLOW_PROT_HDR_SZ_SCTP 12
425 * ice_flow_calc_seg_sz - calculates size of a packet segment based on headers
426 * @params: information about the flow to be processed
427 * @seg: index of packet segment whose header size is to be determined
429 static u16 ice_flow_calc_seg_sz(struct ice_flow_prof_params *params, u8 seg)
434 sz = (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_VLAN) ?
435 ICE_FLOW_PROT_HDR_SZ_MAC_VLAN : ICE_FLOW_PROT_HDR_SZ_MAC;
438 if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4)
439 sz += ICE_FLOW_PROT_HDR_SZ_IPV4;
440 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV6)
441 sz += ICE_FLOW_PROT_HDR_SZ_IPV6;
442 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_ARP)
443 sz += ICE_FLOW_PROT_HDR_SZ_ARP;
444 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK)
445 /* A L3 header is required if L4 is specified */
449 if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_ICMP)
450 sz += ICE_FLOW_PROT_HDR_SZ_ICMP;
451 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_TCP)
452 sz += ICE_FLOW_PROT_HDR_SZ_TCP;
453 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_UDP)
454 sz += ICE_FLOW_PROT_HDR_SZ_UDP;
455 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_SCTP)
456 sz += ICE_FLOW_PROT_HDR_SZ_SCTP;
462 * ice_flow_proc_seg_hdrs - process protocol headers present in pkt segments
463 * @params: information about the flow to be processed
465 * This function identifies the packet types associated with the protocol
466 * headers being present in packet segments of the specified flow profile.
468 static enum ice_status
469 ice_flow_proc_seg_hdrs(struct ice_flow_prof_params *params)
471 struct ice_flow_prof *prof;
474 ice_memset(params->ptypes, 0xff, sizeof(params->ptypes),
479 for (i = 0; i < params->prof->segs_cnt; i++) {
480 const ice_bitmap_t *src;
483 hdrs = prof->segs[i].hdrs;
485 if (hdrs & ICE_FLOW_SEG_HDR_ETH) {
486 src = !i ? (const ice_bitmap_t *)ice_ptypes_mac_ofos :
487 (const ice_bitmap_t *)ice_ptypes_mac_il;
488 ice_and_bitmap(params->ptypes, params->ptypes, src,
492 if (i && hdrs & ICE_FLOW_SEG_HDR_VLAN) {
493 src = (const ice_bitmap_t *)ice_ptypes_macvlan_il;
494 ice_and_bitmap(params->ptypes, params->ptypes, src,
498 if (!i && hdrs & ICE_FLOW_SEG_HDR_ARP) {
499 ice_and_bitmap(params->ptypes, params->ptypes,
500 (const ice_bitmap_t *)ice_ptypes_arp_of,
504 if (hdrs & ICE_FLOW_SEG_HDR_PPPOE) {
505 src = (const ice_bitmap_t *)ice_ptypes_pppoe;
506 ice_and_bitmap(params->ptypes, params->ptypes, src,
510 if (hdrs & ICE_FLOW_SEG_HDR_IPV4) {
511 src = !i ? (const ice_bitmap_t *)ice_ptypes_ipv4_ofos :
512 (const ice_bitmap_t *)ice_ptypes_ipv4_il;
513 ice_and_bitmap(params->ptypes, params->ptypes, src,
515 } else if (hdrs & ICE_FLOW_SEG_HDR_IPV6) {
516 src = !i ? (const ice_bitmap_t *)ice_ptypes_ipv6_ofos :
517 (const ice_bitmap_t *)ice_ptypes_ipv6_il;
518 ice_and_bitmap(params->ptypes, params->ptypes, src,
522 if (hdrs & ICE_FLOW_SEG_HDR_ICMP) {
523 src = !i ? (const ice_bitmap_t *)ice_ptypes_icmp_of :
524 (const ice_bitmap_t *)ice_ptypes_icmp_il;
525 ice_and_bitmap(params->ptypes, params->ptypes, src,
527 } else if (hdrs & ICE_FLOW_SEG_HDR_UDP) {
528 src = (const ice_bitmap_t *)ice_ptypes_udp_il;
529 ice_and_bitmap(params->ptypes, params->ptypes, src,
531 } else if (hdrs & ICE_FLOW_SEG_HDR_TCP) {
532 ice_and_bitmap(params->ptypes, params->ptypes,
533 (const ice_bitmap_t *)ice_ptypes_tcp_il,
535 } else if (hdrs & ICE_FLOW_SEG_HDR_SCTP) {
536 src = (const ice_bitmap_t *)ice_ptypes_sctp_il;
537 ice_and_bitmap(params->ptypes, params->ptypes, src,
539 } else if (hdrs & ICE_FLOW_SEG_HDR_GRE) {
541 src = (const ice_bitmap_t *)ice_ptypes_gre_of;
542 ice_and_bitmap(params->ptypes, params->ptypes,
543 src, ICE_FLOW_PTYPE_MAX);
545 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPC) {
547 src = (const ice_bitmap_t *)ice_ptypes_gtpc;
548 ice_and_bitmap(params->ptypes, params->ptypes,
549 src, ICE_FLOW_PTYPE_MAX);
551 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPC_TEID) {
553 src = (const ice_bitmap_t *)ice_ptypes_gtpc_tid;
554 ice_and_bitmap(params->ptypes, params->ptypes,
555 src, ICE_FLOW_PTYPE_MAX);
557 } else if (hdrs & ICE_FLOW_SEG_HDR_GTPU) {
559 src = (const ice_bitmap_t *)ice_ptypes_gtpu;
560 ice_and_bitmap(params->ptypes, params->ptypes,
561 src, ICE_FLOW_PTYPE_MAX);
570 * ice_flow_xtract_pkt_flags - Create an extr sequence entry for packet flags
571 * @hw: pointer to the HW struct
572 * @params: information about the flow to be processed
573 * @flags: The value of pkt_flags[x:x] in Rx/Tx MDID metadata.
575 * This function will allocate an extraction sequence entries for a DWORD size
576 * chunk of the packet flags.
578 static enum ice_status
579 ice_flow_xtract_pkt_flags(struct ice_hw *hw,
580 struct ice_flow_prof_params *params,
581 enum ice_flex_mdid_pkt_flags flags)
583 u8 fv_words = hw->blk[params->blk].es.fvw;
586 /* Make sure the number of extraction sequence entries required does not
587 * exceed the block's capacity.
589 if (params->es_cnt >= fv_words)
590 return ICE_ERR_MAX_LIMIT;
592 /* some blocks require a reversed field vector layout */
593 if (hw->blk[params->blk].es.reverse)
594 idx = fv_words - params->es_cnt - 1;
596 idx = params->es_cnt;
598 params->es[idx].prot_id = ICE_PROT_META_ID;
599 params->es[idx].off = flags;
606 * ice_flow_xtract_fld - Create an extraction sequence entry for the given field
607 * @hw: pointer to the HW struct
608 * @params: information about the flow to be processed
609 * @seg: packet segment index of the field to be extracted
610 * @fld: ID of field to be extracted
612 * This function determines the protocol ID, offset, and size of the given
613 * field. It then allocates one or more extraction sequence entries for the
614 * given field, and fill the entries with protocol ID and offset information.
616 static enum ice_status
617 ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params,
618 u8 seg, enum ice_flow_field fld)
620 enum ice_flow_field sib = ICE_FLOW_FIELD_IDX_MAX;
621 enum ice_prot_id prot_id = ICE_PROT_ID_INVAL;
622 u8 fv_words = hw->blk[params->blk].es.fvw;
623 struct ice_flow_fld_info *flds;
624 u16 cnt, ese_bits, i;
629 flds = params->prof->segs[seg].fields;
632 case ICE_FLOW_FIELD_IDX_ETH_DA:
633 case ICE_FLOW_FIELD_IDX_ETH_SA:
634 case ICE_FLOW_FIELD_IDX_S_VLAN:
635 case ICE_FLOW_FIELD_IDX_C_VLAN:
636 prot_id = seg == 0 ? ICE_PROT_MAC_OF_OR_S : ICE_PROT_MAC_IL;
638 case ICE_FLOW_FIELD_IDX_ETH_TYPE:
639 prot_id = seg == 0 ? ICE_PROT_ETYPE_OL : ICE_PROT_ETYPE_IL;
641 case ICE_FLOW_FIELD_IDX_IP_DSCP:
642 if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV6)
643 adj = ICE_FLOW_FLD_IPV6_TTL_DSCP_DISP;
645 case ICE_FLOW_FIELD_IDX_IP_TTL:
646 case ICE_FLOW_FIELD_IDX_IP_PROT:
647 /* Some fields are located at different offsets in IPv4 and
650 if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4) {
651 prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S :
653 /* TTL and PROT share the same extraction seq. entry.
654 * Each is considered a sibling to the other in term
655 * sharing the same extraction sequence entry.
657 if (fld == ICE_FLOW_FIELD_IDX_IP_TTL)
658 sib = ICE_FLOW_FIELD_IDX_IP_PROT;
659 else if (fld == ICE_FLOW_FIELD_IDX_IP_PROT)
660 sib = ICE_FLOW_FIELD_IDX_IP_TTL;
661 } else if (params->prof->segs[seg].hdrs &
662 ICE_FLOW_SEG_HDR_IPV6) {
663 prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S :
665 if (fld == ICE_FLOW_FIELD_IDX_IP_TTL)
666 adj = ICE_FLOW_FLD_IPV6_TTL_TTL_DISP;
667 else if (fld == ICE_FLOW_FIELD_IDX_IP_PROT)
668 adj = ICE_FLOW_FLD_IPV6_TTL_PROT_DISP;
671 case ICE_FLOW_FIELD_IDX_IPV4_SA:
672 case ICE_FLOW_FIELD_IDX_IPV4_DA:
673 prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL;
675 case ICE_FLOW_FIELD_IDX_IPV6_SA:
676 case ICE_FLOW_FIELD_IDX_IPV6_DA:
677 prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL;
679 case ICE_FLOW_FIELD_IDX_TCP_SRC_PORT:
680 case ICE_FLOW_FIELD_IDX_TCP_DST_PORT:
681 case ICE_FLOW_FIELD_IDX_TCP_FLAGS:
682 prot_id = ICE_PROT_TCP_IL;
684 case ICE_FLOW_FIELD_IDX_UDP_SRC_PORT:
685 case ICE_FLOW_FIELD_IDX_UDP_DST_PORT:
686 prot_id = ICE_PROT_UDP_IL_OR_S;
688 case ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT:
689 case ICE_FLOW_FIELD_IDX_SCTP_DST_PORT:
690 prot_id = ICE_PROT_SCTP_IL;
692 case ICE_FLOW_FIELD_IDX_GTPC_TEID:
693 case ICE_FLOW_FIELD_IDX_GTPU_IP_TEID:
694 case ICE_FLOW_FIELD_IDX_GTPU_UP_TEID:
695 case ICE_FLOW_FIELD_IDX_GTPU_DWN_TEID:
696 /* GTP is accessed through UDP OF protocol */
697 prot_id = ICE_PROT_UDP_OF;
699 case ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID:
700 prot_id = ICE_PROT_PPPOE;
702 case ICE_FLOW_FIELD_IDX_ARP_SIP:
703 case ICE_FLOW_FIELD_IDX_ARP_DIP:
704 case ICE_FLOW_FIELD_IDX_ARP_SHA:
705 case ICE_FLOW_FIELD_IDX_ARP_DHA:
706 case ICE_FLOW_FIELD_IDX_ARP_OP:
707 prot_id = ICE_PROT_ARP_OF;
709 case ICE_FLOW_FIELD_IDX_ICMP_TYPE:
710 case ICE_FLOW_FIELD_IDX_ICMP_CODE:
711 /* ICMP type and code share the same extraction seq. entry */
712 prot_id = (params->prof->segs[seg].hdrs &
713 ICE_FLOW_SEG_HDR_IPV4) ?
714 ICE_PROT_ICMP_IL : ICE_PROT_ICMPV6_IL;
715 sib = fld == ICE_FLOW_FIELD_IDX_ICMP_TYPE ?
716 ICE_FLOW_FIELD_IDX_ICMP_CODE :
717 ICE_FLOW_FIELD_IDX_ICMP_TYPE;
719 case ICE_FLOW_FIELD_IDX_GRE_KEYID:
720 prot_id = ICE_PROT_GRE_OF;
723 return ICE_ERR_NOT_IMPL;
726 /* Each extraction sequence entry is a word in size, and extracts a
727 * word-aligned offset from a protocol header.
729 ese_bits = ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE;
731 flds[fld].xtrct.prot_id = prot_id;
732 flds[fld].xtrct.off = (ice_flds_info[fld].off / ese_bits) *
733 ICE_FLOW_FV_EXTRACT_SZ;
734 flds[fld].xtrct.disp = (u8)((ice_flds_info[fld].off + adj) % ese_bits);
735 flds[fld].xtrct.idx = params->es_cnt;
737 /* Adjust the next field-entry index after accommodating the number of
738 * entries this field consumes
740 cnt = DIVIDE_AND_ROUND_UP(flds[fld].xtrct.disp +
741 ice_flds_info[fld].size, ese_bits);
743 /* Fill in the extraction sequence entries needed for this field */
744 off = flds[fld].xtrct.off;
745 mask = ice_flds_info[fld].mask;
746 for (i = 0; i < cnt; i++) {
747 /* Only consume an extraction sequence entry if there is no
748 * sibling field associated with this field or the sibling entry
749 * already extracts the word shared with this field.
751 if (sib == ICE_FLOW_FIELD_IDX_MAX ||
752 flds[sib].xtrct.prot_id == ICE_PROT_ID_INVAL ||
753 flds[sib].xtrct.off != off) {
756 /* Make sure the number of extraction sequence required
757 * does not exceed the block's capability
759 if (params->es_cnt >= fv_words)
760 return ICE_ERR_MAX_LIMIT;
762 /* some blocks require a reversed field vector layout */
763 if (hw->blk[params->blk].es.reverse)
764 idx = fv_words - params->es_cnt - 1;
766 idx = params->es_cnt;
768 params->es[idx].prot_id = prot_id;
769 params->es[idx].off = off;
770 params->mask[idx] = mask;
774 off += ICE_FLOW_FV_EXTRACT_SZ;
781 * ice_flow_xtract_raws - Create extract sequence entries for raw bytes
782 * @hw: pointer to the HW struct
783 * @params: information about the flow to be processed
784 * @seg: index of packet segment whose raw fields are to be be extracted
786 static enum ice_status
787 ice_flow_xtract_raws(struct ice_hw *hw, struct ice_flow_prof_params *params,
793 if (!params->prof->segs[seg].raws_cnt)
796 if (params->prof->segs[seg].raws_cnt >
797 ARRAY_SIZE(params->prof->segs[seg].raws))
798 return ICE_ERR_MAX_LIMIT;
800 /* Offsets within the segment headers are not supported */
801 hdrs_sz = ice_flow_calc_seg_sz(params, seg);
803 return ICE_ERR_PARAM;
805 for (i = 0; i < params->prof->segs[seg].raws_cnt; i++) {
806 struct ice_flow_seg_fld_raw *raw;
809 raw = ¶ms->prof->segs[seg].raws[i];
811 /* Only support matching raw fields in the payload */
812 if (raw->off < hdrs_sz)
813 return ICE_ERR_PARAM;
815 /* Convert the segment-relative offset into payload-relative
818 off = raw->off - hdrs_sz;
820 /* Storing extraction information */
821 raw->info.xtrct.prot_id = ICE_PROT_PAY;
822 raw->info.xtrct.off = (off / ICE_FLOW_FV_EXTRACT_SZ) *
823 ICE_FLOW_FV_EXTRACT_SZ;
824 raw->info.xtrct.disp = (off % ICE_FLOW_FV_EXTRACT_SZ) *
826 raw->info.xtrct.idx = params->es_cnt;
828 /* Determine the number of field vector entries this raw field
831 cnt = DIVIDE_AND_ROUND_UP(raw->info.xtrct.disp +
832 (raw->info.src.last * BITS_PER_BYTE),
833 (ICE_FLOW_FV_EXTRACT_SZ *
835 off = raw->info.xtrct.off;
836 for (j = 0; j < cnt; j++) {
837 /* Make sure the number of extraction sequence required
838 * does not exceed the block's capability
840 if (params->es_cnt >= hw->blk[params->blk].es.count ||
841 params->es_cnt >= ICE_MAX_FV_WORDS)
842 return ICE_ERR_MAX_LIMIT;
844 params->es[params->es_cnt].prot_id = ICE_PROT_PAY;
845 params->es[params->es_cnt].off = off;
847 off += ICE_FLOW_FV_EXTRACT_SZ;
855 * ice_flow_create_xtrct_seq - Create an extraction sequence for given segments
856 * @hw: pointer to the HW struct
857 * @params: information about the flow to be processed
859 * This function iterates through all matched fields in the given segments, and
860 * creates an extraction sequence for the fields.
862 static enum ice_status
863 ice_flow_create_xtrct_seq(struct ice_hw *hw,
864 struct ice_flow_prof_params *params)
866 enum ice_status status = ICE_SUCCESS;
869 /* For ACL, we also need to extract the direction bit (Rx,Tx) data from
872 if (params->blk == ICE_BLK_ACL) {
873 status = ice_flow_xtract_pkt_flags(hw, params,
874 ICE_RX_MDID_PKT_FLAGS_15_0);
879 for (i = 0; i < params->prof->segs_cnt; i++) {
880 u64 match = params->prof->segs[i].match;
883 for (j = 0; j < ICE_FLOW_FIELD_IDX_MAX && match; j++) {
884 const u64 bit = BIT_ULL(j);
887 status = ice_flow_xtract_fld
888 (hw, params, i, (enum ice_flow_field)j);
895 /* Process raw matching bytes */
896 status = ice_flow_xtract_raws(hw, params, i);
905 * ice_flow_proc_segs - process all packet segments associated with a profile
906 * @hw: pointer to the HW struct
907 * @params: information about the flow to be processed
909 static enum ice_status
910 ice_flow_proc_segs(struct ice_hw *hw, struct ice_flow_prof_params *params)
912 enum ice_status status;
914 status = ice_flow_proc_seg_hdrs(params);
918 status = ice_flow_create_xtrct_seq(hw, params);
922 switch (params->blk) {
924 /* Only header information is provided for RSS configuration.
925 * No further processing is needed.
927 status = ICE_SUCCESS;
930 status = ICE_SUCCESS;
934 return ICE_ERR_NOT_IMPL;
940 #define ICE_FLOW_FIND_PROF_CHK_FLDS 0x00000001
941 #define ICE_FLOW_FIND_PROF_CHK_VSI 0x00000002
942 #define ICE_FLOW_FIND_PROF_NOT_CHK_DIR 0x00000004
945 * ice_flow_find_prof_conds - Find a profile matching headers and conditions
946 * @hw: pointer to the HW struct
947 * @blk: classification stage
948 * @dir: flow direction
949 * @segs: array of one or more packet segments that describe the flow
950 * @segs_cnt: number of packet segments provided
951 * @vsi_handle: software VSI handle to check VSI (ICE_FLOW_FIND_PROF_CHK_VSI)
952 * @conds: additional conditions to be checked (ICE_FLOW_FIND_PROF_CHK_*)
954 static struct ice_flow_prof *
955 ice_flow_find_prof_conds(struct ice_hw *hw, enum ice_block blk,
956 enum ice_flow_dir dir, struct ice_flow_seg_info *segs,
957 u8 segs_cnt, u16 vsi_handle, u32 conds)
959 struct ice_flow_prof *p, *prof = NULL;
961 ice_acquire_lock(&hw->fl_profs_locks[blk]);
962 LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) {
963 if ((p->dir == dir || conds & ICE_FLOW_FIND_PROF_NOT_CHK_DIR) &&
964 segs_cnt && segs_cnt == p->segs_cnt) {
967 /* Check for profile-VSI association if specified */
968 if ((conds & ICE_FLOW_FIND_PROF_CHK_VSI) &&
969 ice_is_vsi_valid(hw, vsi_handle) &&
970 !ice_is_bit_set(p->vsis, vsi_handle))
973 /* Protocol headers must be checked. Matched fields are
974 * checked if specified.
976 for (i = 0; i < segs_cnt; i++)
977 if (segs[i].hdrs != p->segs[i].hdrs ||
978 ((conds & ICE_FLOW_FIND_PROF_CHK_FLDS) &&
979 segs[i].match != p->segs[i].match))
982 /* A match is found if all segments are matched */
989 ice_release_lock(&hw->fl_profs_locks[blk]);
995 * ice_flow_find_prof - Look up a profile matching headers and matched fields
996 * @hw: pointer to the HW struct
997 * @blk: classification stage
998 * @dir: flow direction
999 * @segs: array of one or more packet segments that describe the flow
1000 * @segs_cnt: number of packet segments provided
1003 ice_flow_find_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir,
1004 struct ice_flow_seg_info *segs, u8 segs_cnt)
1006 struct ice_flow_prof *p;
1008 p = ice_flow_find_prof_conds(hw, blk, dir, segs, segs_cnt,
1009 ICE_MAX_VSI, ICE_FLOW_FIND_PROF_CHK_FLDS);
1011 return p ? p->id : ICE_FLOW_PROF_ID_INVAL;
1015 * ice_flow_find_prof_id - Look up a profile with given profile ID
1016 * @hw: pointer to the HW struct
1017 * @blk: classification stage
1018 * @prof_id: unique ID to identify this flow profile
1020 static struct ice_flow_prof *
1021 ice_flow_find_prof_id(struct ice_hw *hw, enum ice_block blk, u64 prof_id)
1023 struct ice_flow_prof *p;
1025 LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) {
1026 if (p->id == prof_id)
1034 * ice_dealloc_flow_entry - Deallocate flow entry memory
1035 * @hw: pointer to the HW struct
1036 * @entry: flow entry to be removed
1039 ice_dealloc_flow_entry(struct ice_hw *hw, struct ice_flow_entry *entry)
1045 ice_free(hw, entry->entry);
1048 ice_free(hw, entry->acts);
1050 entry->acts_cnt = 0;
1053 ice_free(hw, entry);
1057 * ice_flow_rem_entry_sync - Remove a flow entry
1058 * @hw: pointer to the HW struct
1059 * @entry: flow entry to be removed
1061 static enum ice_status
1062 ice_flow_rem_entry_sync(struct ice_hw *hw, struct ice_flow_entry *entry)
1065 return ICE_ERR_BAD_PTR;
1067 LIST_DEL(&entry->l_entry);
1069 ice_dealloc_flow_entry(hw, entry);
1075 * ice_flow_add_prof_sync - Add a flow profile for packet segments and fields
1076 * @hw: pointer to the HW struct
1077 * @blk: classification stage
1078 * @dir: flow direction
1079 * @prof_id: unique ID to identify this flow profile
1080 * @segs: array of one or more packet segments that describe the flow
1081 * @segs_cnt: number of packet segments provided
1082 * @acts: array of default actions
1083 * @acts_cnt: number of default actions
1084 * @prof: stores the returned flow profile added
1086 * Assumption: the caller has acquired the lock to the profile list
1088 static enum ice_status
1089 ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk,
1090 enum ice_flow_dir dir, u64 prof_id,
1091 struct ice_flow_seg_info *segs, u8 segs_cnt,
1092 struct ice_flow_action *acts, u8 acts_cnt,
1093 struct ice_flow_prof **prof)
1095 struct ice_flow_prof_params params;
1096 enum ice_status status = ICE_SUCCESS;
1099 if (!prof || (acts_cnt && !acts))
1100 return ICE_ERR_BAD_PTR;
1102 ice_memset(¶ms, 0, sizeof(params), ICE_NONDMA_MEM);
1103 params.prof = (struct ice_flow_prof *)
1104 ice_malloc(hw, sizeof(*params.prof));
1106 return ICE_ERR_NO_MEMORY;
1108 /* initialize extraction sequence to all invalid (0xff) */
1109 for (i = 0; i < ICE_MAX_FV_WORDS; i++) {
1110 params.es[i].prot_id = ICE_PROT_INVALID;
1111 params.es[i].off = ICE_FV_OFFSET_INVAL;
1115 params.prof->id = prof_id;
1116 params.prof->dir = dir;
1117 params.prof->segs_cnt = segs_cnt;
1119 /* Make a copy of the segments that need to be persistent in the flow
1122 for (i = 0; i < segs_cnt; i++)
1123 ice_memcpy(¶ms.prof->segs[i], &segs[i], sizeof(*segs),
1124 ICE_NONDMA_TO_NONDMA);
1126 /* Make a copy of the actions that need to be persistent in the flow
1130 params.prof->acts = (struct ice_flow_action *)
1131 ice_memdup(hw, acts, acts_cnt * sizeof(*acts),
1132 ICE_NONDMA_TO_NONDMA);
1134 if (!params.prof->acts) {
1135 status = ICE_ERR_NO_MEMORY;
1140 status = ice_flow_proc_segs(hw, ¶ms);
1142 ice_debug(hw, ICE_DBG_FLOW,
1143 "Error processing a flow's packet segments\n");
1147 /* Add a HW profile for this flow profile */
1148 status = ice_add_prof_with_mask(hw, blk, prof_id, (u8 *)params.ptypes,
1149 params.es, params.mask);
1151 ice_debug(hw, ICE_DBG_FLOW, "Error adding a HW flow profile\n");
1155 INIT_LIST_HEAD(¶ms.prof->entries);
1156 ice_init_lock(¶ms.prof->entries_lock);
1157 *prof = params.prof;
1161 if (params.prof->acts)
1162 ice_free(hw, params.prof->acts);
1163 ice_free(hw, params.prof);
1170 * ice_flow_rem_prof_sync - remove a flow profile
1171 * @hw: pointer to the hardware structure
1172 * @blk: classification stage
1173 * @prof: pointer to flow profile to remove
1175 * Assumption: the caller has acquired the lock to the profile list
1177 static enum ice_status
1178 ice_flow_rem_prof_sync(struct ice_hw *hw, enum ice_block blk,
1179 struct ice_flow_prof *prof)
1181 enum ice_status status = ICE_SUCCESS;
1183 /* Remove all remaining flow entries before removing the flow profile */
1184 if (!LIST_EMPTY(&prof->entries)) {
1185 struct ice_flow_entry *e, *t;
1187 ice_acquire_lock(&prof->entries_lock);
1189 LIST_FOR_EACH_ENTRY_SAFE(e, t, &prof->entries, ice_flow_entry,
1191 status = ice_flow_rem_entry_sync(hw, e);
1196 ice_release_lock(&prof->entries_lock);
1199 /* Remove all hardware profiles associated with this flow profile */
1200 status = ice_rem_prof(hw, blk, prof->id);
1202 LIST_DEL(&prof->l_entry);
1203 ice_destroy_lock(&prof->entries_lock);
1205 ice_free(hw, prof->acts);
1213 * ice_flow_assoc_vsig_vsi - associate a VSI with VSIG
1214 * @hw: pointer to the hardware structure
1215 * @blk: classification stage
1216 * @vsi_handle: software VSI handle
1217 * @vsig: target VSI group
1219 * Assumption: the caller has already verified that the VSI to
1220 * be added has the same characteristics as the VSIG and will
1221 * thereby have access to all resources added to that VSIG.
1224 ice_flow_assoc_vsig_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi_handle,
1227 enum ice_status status;
1229 if (!ice_is_vsi_valid(hw, vsi_handle) || blk >= ICE_BLK_COUNT)
1230 return ICE_ERR_PARAM;
1232 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1233 status = ice_add_vsi_flow(hw, blk, ice_get_hw_vsi_num(hw, vsi_handle),
1235 ice_release_lock(&hw->fl_profs_locks[blk]);
1241 * ice_flow_assoc_prof - associate a VSI with a flow profile
1242 * @hw: pointer to the hardware structure
1243 * @blk: classification stage
1244 * @prof: pointer to flow profile
1245 * @vsi_handle: software VSI handle
1247 * Assumption: the caller has acquired the lock to the profile list
1248 * and the software VSI handle has been validated
1250 static enum ice_status
1251 ice_flow_assoc_prof(struct ice_hw *hw, enum ice_block blk,
1252 struct ice_flow_prof *prof, u16 vsi_handle)
1254 enum ice_status status = ICE_SUCCESS;
1256 if (!ice_is_bit_set(prof->vsis, vsi_handle)) {
1257 status = ice_add_prof_id_flow(hw, blk,
1258 ice_get_hw_vsi_num(hw,
1262 ice_set_bit(vsi_handle, prof->vsis);
1264 ice_debug(hw, ICE_DBG_FLOW,
1265 "HW profile add failed, %d\n",
1273 * ice_flow_disassoc_prof - disassociate a VSI from a flow profile
1274 * @hw: pointer to the hardware structure
1275 * @blk: classification stage
1276 * @prof: pointer to flow profile
1277 * @vsi_handle: software VSI handle
1279 * Assumption: the caller has acquired the lock to the profile list
1280 * and the software VSI handle has been validated
1282 static enum ice_status
1283 ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk,
1284 struct ice_flow_prof *prof, u16 vsi_handle)
1286 enum ice_status status = ICE_SUCCESS;
1288 if (ice_is_bit_set(prof->vsis, vsi_handle)) {
1289 status = ice_rem_prof_id_flow(hw, blk,
1290 ice_get_hw_vsi_num(hw,
1294 ice_clear_bit(vsi_handle, prof->vsis);
1296 ice_debug(hw, ICE_DBG_FLOW,
1297 "HW profile remove failed, %d\n",
1305 * ice_flow_add_prof - Add a flow profile for packet segments and matched fields
1306 * @hw: pointer to the HW struct
1307 * @blk: classification stage
1308 * @dir: flow direction
1309 * @prof_id: unique ID to identify this flow profile
1310 * @segs: array of one or more packet segments that describe the flow
1311 * @segs_cnt: number of packet segments provided
1312 * @acts: array of default actions
1313 * @acts_cnt: number of default actions
1314 * @prof: stores the returned flow profile added
1317 ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir,
1318 u64 prof_id, struct ice_flow_seg_info *segs, u8 segs_cnt,
1319 struct ice_flow_action *acts, u8 acts_cnt,
1320 struct ice_flow_prof **prof)
1322 enum ice_status status;
1324 if (segs_cnt > ICE_FLOW_SEG_MAX)
1325 return ICE_ERR_MAX_LIMIT;
1328 return ICE_ERR_PARAM;
1331 return ICE_ERR_BAD_PTR;
1333 status = ice_flow_val_hdrs(segs, segs_cnt);
1337 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1339 status = ice_flow_add_prof_sync(hw, blk, dir, prof_id, segs, segs_cnt,
1340 acts, acts_cnt, prof);
1342 LIST_ADD(&(*prof)->l_entry, &hw->fl_profs[blk]);
1344 ice_release_lock(&hw->fl_profs_locks[blk]);
1350 * ice_flow_rem_prof - Remove a flow profile and all entries associated with it
1351 * @hw: pointer to the HW struct
1352 * @blk: the block for which the flow profile is to be removed
1353 * @prof_id: unique ID of the flow profile to be removed
1356 ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id)
1358 struct ice_flow_prof *prof;
1359 enum ice_status status;
1361 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1363 prof = ice_flow_find_prof_id(hw, blk, prof_id);
1365 status = ICE_ERR_DOES_NOT_EXIST;
1369 /* prof becomes invalid after the call */
1370 status = ice_flow_rem_prof_sync(hw, blk, prof);
1373 ice_release_lock(&hw->fl_profs_locks[blk]);
1379 * ice_flow_get_hw_prof - return the HW profile for a specific profile ID handle
1380 * @hw: pointer to the HW struct
1381 * @blk: classification stage
1382 * @prof_id: the profile ID handle
1383 * @hw_prof_id: pointer to variable to receive the HW profile ID
1386 ice_flow_get_hw_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
1389 struct ice_prof_map *map;
1391 map = ice_search_prof_id(hw, blk, prof_id);
1393 *hw_prof_id = map->prof_id;
1397 return ICE_ERR_DOES_NOT_EXIST;
1401 * ice_flow_find_entry - look for a flow entry using its unique ID
1402 * @hw: pointer to the HW struct
1403 * @blk: classification stage
1404 * @entry_id: unique ID to identify this flow entry
1406 * This function looks for the flow entry with the specified unique ID in all
1407 * flow profiles of the specified classification stage. If the entry is found,
1408 * and it returns the handle to the flow entry. Otherwise, it returns
1409 * ICE_FLOW_ENTRY_ID_INVAL.
1411 u64 ice_flow_find_entry(struct ice_hw *hw, enum ice_block blk, u64 entry_id)
1413 struct ice_flow_entry *found = NULL;
1414 struct ice_flow_prof *p;
1416 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1418 LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) {
1419 struct ice_flow_entry *e;
1421 ice_acquire_lock(&p->entries_lock);
1422 LIST_FOR_EACH_ENTRY(e, &p->entries, ice_flow_entry, l_entry)
1423 if (e->id == entry_id) {
1427 ice_release_lock(&p->entries_lock);
1433 ice_release_lock(&hw->fl_profs_locks[blk]);
1435 return found ? ICE_FLOW_ENTRY_HNDL(found) : ICE_FLOW_ENTRY_HANDLE_INVAL;
1439 * ice_flow_add_entry - Add a flow entry
1440 * @hw: pointer to the HW struct
1441 * @blk: classification stage
1442 * @prof_id: ID of the profile to add a new flow entry to
1443 * @entry_id: unique ID to identify this flow entry
1444 * @vsi_handle: software VSI handle for the flow entry
1445 * @prio: priority of the flow entry
1446 * @data: pointer to a data buffer containing flow entry's match values/masks
1447 * @acts: arrays of actions to be performed on a match
1448 * @acts_cnt: number of actions
1449 * @entry_h: pointer to buffer that receives the new flow entry's handle
1452 ice_flow_add_entry(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
1453 u64 entry_id, u16 vsi_handle, enum ice_flow_priority prio,
1454 void *data, struct ice_flow_action *acts, u8 acts_cnt,
1457 struct ice_flow_prof *prof = NULL;
1458 struct ice_flow_entry *e = NULL;
1459 enum ice_status status = ICE_SUCCESS;
1461 if (acts_cnt && !acts)
1462 return ICE_ERR_PARAM;
1464 /* No flow entry data is expected for RSS */
1465 if (!entry_h || (!data && blk != ICE_BLK_RSS))
1466 return ICE_ERR_BAD_PTR;
1468 if (!ice_is_vsi_valid(hw, vsi_handle))
1469 return ICE_ERR_PARAM;
1471 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1473 prof = ice_flow_find_prof_id(hw, blk, prof_id);
1475 status = ICE_ERR_DOES_NOT_EXIST;
1477 /* Allocate memory for the entry being added and associate
1478 * the VSI to the found flow profile
1480 e = (struct ice_flow_entry *)ice_malloc(hw, sizeof(*e));
1482 status = ICE_ERR_NO_MEMORY;
1484 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
1487 ice_release_lock(&hw->fl_profs_locks[blk]);
1492 e->vsi_handle = vsi_handle;
1498 /* RSS will add only one entry per VSI per profile */
1505 status = ICE_ERR_NOT_IMPL;
1509 if (blk != ICE_BLK_ACL) {
1510 /* ACL will handle the entry management */
1511 ice_acquire_lock(&prof->entries_lock);
1512 LIST_ADD(&e->l_entry, &prof->entries);
1513 ice_release_lock(&prof->entries_lock);
1516 *entry_h = ICE_FLOW_ENTRY_HNDL(e);
1521 ice_free(hw, e->entry);
1529 * ice_flow_rem_entry - Remove a flow entry
1530 * @hw: pointer to the HW struct
1531 * @entry_h: handle to the flow entry to be removed
1533 enum ice_status ice_flow_rem_entry(struct ice_hw *hw, u64 entry_h)
1535 struct ice_flow_entry *entry;
1536 struct ice_flow_prof *prof;
1537 enum ice_status status;
1539 if (entry_h == ICE_FLOW_ENTRY_HANDLE_INVAL)
1540 return ICE_ERR_PARAM;
1542 entry = ICE_FLOW_ENTRY_PTR((unsigned long)entry_h);
1544 /* Retain the pointer to the flow profile as the entry will be freed */
1547 ice_acquire_lock(&prof->entries_lock);
1548 status = ice_flow_rem_entry_sync(hw, entry);
1549 ice_release_lock(&prof->entries_lock);
1555 * ice_flow_set_fld_ext - specifies locations of field from entry's input buffer
1556 * @seg: packet segment the field being set belongs to
1557 * @fld: field to be set
1558 * @type: type of the field
1559 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
1560 * entry's input buffer
1561 * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's
1563 * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from
1564 * entry's input buffer
1566 * This helper function stores information of a field being matched, including
1567 * the type of the field and the locations of the value to match, the mask, and
1568 * and the upper-bound value in the start of the input buffer for a flow entry.
1569 * This function should only be used for fixed-size data structures.
1571 * This function also opportunistically determines the protocol headers to be
1572 * present based on the fields being set. Some fields cannot be used alone to
1573 * determine the protocol headers present. Sometimes, fields for particular
1574 * protocol headers are not matched. In those cases, the protocol headers
1575 * must be explicitly set.
1578 ice_flow_set_fld_ext(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
1579 enum ice_flow_fld_match_type type, u16 val_loc,
1580 u16 mask_loc, u16 last_loc)
1582 u64 bit = BIT_ULL(fld);
1585 if (type == ICE_FLOW_FLD_TYPE_RANGE)
1588 seg->fields[fld].type = type;
1589 seg->fields[fld].src.val = val_loc;
1590 seg->fields[fld].src.mask = mask_loc;
1591 seg->fields[fld].src.last = last_loc;
1593 ICE_FLOW_SET_HDRS(seg, ice_flds_info[fld].hdr);
1597 * ice_flow_set_fld - specifies locations of field from entry's input buffer
1598 * @seg: packet segment the field being set belongs to
1599 * @fld: field to be set
1600 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
1601 * entry's input buffer
1602 * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's
1604 * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from
1605 * entry's input buffer
1606 * @range: indicate if field being matched is to be in a range
1608 * This function specifies the locations, in the form of byte offsets from the
1609 * start of the input buffer for a flow entry, from where the value to match,
1610 * the mask value, and upper value can be extracted. These locations are then
1611 * stored in the flow profile. When adding a flow entry associated with the
1612 * flow profile, these locations will be used to quickly extract the values and
1613 * create the content of a match entry. This function should only be used for
1614 * fixed-size data structures.
1617 ice_flow_set_fld(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
1618 u16 val_loc, u16 mask_loc, u16 last_loc, bool range)
1620 enum ice_flow_fld_match_type t = range ?
1621 ICE_FLOW_FLD_TYPE_RANGE : ICE_FLOW_FLD_TYPE_REG;
1623 ice_flow_set_fld_ext(seg, fld, t, val_loc, mask_loc, last_loc);
1627 * ice_flow_set_fld_prefix - sets locations of prefix field from entry's buf
1628 * @seg: packet segment the field being set belongs to
1629 * @fld: field to be set
1630 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
1631 * entry's input buffer
1632 * @pref_loc: location of prefix value from entry's input buffer
1633 * @pref_sz: size of the location holding the prefix value
1635 * This function specifies the locations, in the form of byte offsets from the
1636 * start of the input buffer for a flow entry, from where the value to match
1637 * and the IPv4 prefix value can be extracted. These locations are then stored
1638 * in the flow profile. When adding flow entries to the associated flow profile,
1639 * these locations can be used to quickly extract the values to create the
1640 * content of a match entry. This function should only be used for fixed-size
1644 ice_flow_set_fld_prefix(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
1645 u16 val_loc, u16 pref_loc, u8 pref_sz)
1647 /* For this type of field, the "mask" location is for the prefix value's
1648 * location and the "last" location is for the size of the location of
1651 ice_flow_set_fld_ext(seg, fld, ICE_FLOW_FLD_TYPE_PREFIX, val_loc,
1652 pref_loc, (u16)pref_sz);
1656 * ice_flow_add_fld_raw - sets locations of a raw field from entry's input buf
1657 * @seg: packet segment the field being set belongs to
1658 * @off: offset of the raw field from the beginning of the segment in bytes
1659 * @len: length of the raw pattern to be matched
1660 * @val_loc: location of the value to match from entry's input buffer
1661 * @mask_loc: location of mask value from entry's input buffer
1663 * This function specifies the offset of the raw field to be match from the
1664 * beginning of the specified packet segment, and the locations, in the form of
1665 * byte offsets from the start of the input buffer for a flow entry, from where
1666 * the value to match and the mask value to be extracted. These locations are
1667 * then stored in the flow profile. When adding flow entries to the associated
1668 * flow profile, these locations can be used to quickly extract the values to
1669 * create the content of a match entry. This function should only be used for
1670 * fixed-size data structures.
1673 ice_flow_add_fld_raw(struct ice_flow_seg_info *seg, u16 off, u8 len,
1674 u16 val_loc, u16 mask_loc)
1676 if (seg->raws_cnt < ICE_FLOW_SEG_RAW_FLD_MAX) {
1677 seg->raws[seg->raws_cnt].off = off;
1678 seg->raws[seg->raws_cnt].info.type = ICE_FLOW_FLD_TYPE_SIZE;
1679 seg->raws[seg->raws_cnt].info.src.val = val_loc;
1680 seg->raws[seg->raws_cnt].info.src.mask = mask_loc;
1681 /* The "last" field is used to store the length of the field */
1682 seg->raws[seg->raws_cnt].info.src.last = len;
1685 /* Overflows of "raws" will be handled as an error condition later in
1686 * the flow when this information is processed.
1691 #define ICE_FLOW_RSS_SEG_HDR_L2_MASKS \
1692 (ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN)
1694 #define ICE_FLOW_RSS_SEG_HDR_L3_MASKS \
1695 (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6)
1697 #define ICE_FLOW_RSS_SEG_HDR_L4_MASKS \
1698 (ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | \
1699 ICE_FLOW_SEG_HDR_SCTP)
1701 #define ICE_FLOW_RSS_SEG_HDR_VAL_MASKS \
1702 (ICE_FLOW_RSS_SEG_HDR_L2_MASKS | \
1703 ICE_FLOW_RSS_SEG_HDR_L3_MASKS | \
1704 ICE_FLOW_RSS_SEG_HDR_L4_MASKS)
1707 * ice_flow_set_rss_seg_info - setup packet segments for RSS
1708 * @segs: pointer to the flow field segment(s)
1709 * @hash_fields: fields to be hashed on for the segment(s)
1710 * @flow_hdr: protocol header fields within a packet segment
1712 * Helper function to extract fields from hash bitmap and use flow
1713 * header value to set flow field segment for further use in flow
1714 * profile entry or removal.
1716 static enum ice_status
1717 ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u64 hash_fields,
1720 u64 val = hash_fields;
1723 for (i = 0; val && i < ICE_FLOW_FIELD_IDX_MAX; i++) {
1724 u64 bit = BIT_ULL(i);
1727 ice_flow_set_fld(segs, (enum ice_flow_field)i,
1728 ICE_FLOW_FLD_OFF_INVAL,
1729 ICE_FLOW_FLD_OFF_INVAL,
1730 ICE_FLOW_FLD_OFF_INVAL, false);
1734 ICE_FLOW_SET_HDRS(segs, flow_hdr);
1736 if (segs->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS &
1737 ~ICE_FLOW_RSS_HDRS_INNER_MASK)
1738 return ICE_ERR_PARAM;
1740 val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS);
1741 if (val && !ice_is_pow2(val))
1744 val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS);
1745 if (val && !ice_is_pow2(val))
1752 * ice_rem_vsi_rss_list - remove VSI from RSS list
1753 * @hw: pointer to the hardware structure
1754 * @vsi_handle: software VSI handle
1756 * Remove the VSI from all RSS configurations in the list.
1758 void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle)
1760 struct ice_rss_cfg *r, *tmp;
1762 if (LIST_EMPTY(&hw->rss_list_head))
1765 ice_acquire_lock(&hw->rss_locks);
1766 LIST_FOR_EACH_ENTRY_SAFE(r, tmp, &hw->rss_list_head,
1767 ice_rss_cfg, l_entry) {
1768 if (ice_is_bit_set(r->vsis, vsi_handle)) {
1769 ice_clear_bit(vsi_handle, r->vsis);
1771 if (!ice_is_any_bit_set(r->vsis, ICE_MAX_VSI)) {
1772 LIST_DEL(&r->l_entry);
1777 ice_release_lock(&hw->rss_locks);
1781 * ice_rem_vsi_rss_cfg - remove RSS configurations associated with VSI
1782 * @hw: pointer to the hardware structure
1783 * @vsi_handle: software VSI handle
1785 * This function will iterate through all flow profiles and disassociate
1786 * the VSI from that profile. If the flow profile has no VSIs it will
1789 enum ice_status ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle)
1791 const enum ice_block blk = ICE_BLK_RSS;
1792 struct ice_flow_prof *p, *t;
1793 enum ice_status status = ICE_SUCCESS;
1795 if (!ice_is_vsi_valid(hw, vsi_handle))
1796 return ICE_ERR_PARAM;
1798 if (LIST_EMPTY(&hw->fl_profs[blk]))
1801 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1802 LIST_FOR_EACH_ENTRY_SAFE(p, t, &hw->fl_profs[blk], ice_flow_prof,
1804 if (ice_is_bit_set(p->vsis, vsi_handle)) {
1805 status = ice_flow_disassoc_prof(hw, blk, p, vsi_handle);
1809 if (!ice_is_any_bit_set(p->vsis, ICE_MAX_VSI)) {
1810 status = ice_flow_rem_prof_sync(hw, blk, p);
1816 ice_release_lock(&hw->fl_profs_locks[blk]);
1822 * ice_rem_rss_list - remove RSS configuration from list
1823 * @hw: pointer to the hardware structure
1824 * @vsi_handle: software VSI handle
1825 * @prof: pointer to flow profile
1827 * Assumption: lock has already been acquired for RSS list
1830 ice_rem_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof)
1832 struct ice_rss_cfg *r, *tmp;
1834 /* Search for RSS hash fields associated to the VSI that match the
1835 * hash configurations associated to the flow profile. If found
1836 * remove from the RSS entry list of the VSI context and delete entry.
1838 LIST_FOR_EACH_ENTRY_SAFE(r, tmp, &hw->rss_list_head,
1839 ice_rss_cfg, l_entry) {
1840 if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
1841 r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
1842 ice_clear_bit(vsi_handle, r->vsis);
1843 if (!ice_is_any_bit_set(r->vsis, ICE_MAX_VSI)) {
1844 LIST_DEL(&r->l_entry);
1853 * ice_add_rss_list - add RSS configuration to list
1854 * @hw: pointer to the hardware structure
1855 * @vsi_handle: software VSI handle
1856 * @prof: pointer to flow profile
1858 * Assumption: lock has already been acquired for RSS list
1860 static enum ice_status
1861 ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof)
1863 struct ice_rss_cfg *r, *rss_cfg;
1865 LIST_FOR_EACH_ENTRY(r, &hw->rss_list_head,
1866 ice_rss_cfg, l_entry)
1867 if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
1868 r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
1869 ice_set_bit(vsi_handle, r->vsis);
1873 rss_cfg = (struct ice_rss_cfg *)ice_malloc(hw, sizeof(*rss_cfg));
1875 return ICE_ERR_NO_MEMORY;
1877 rss_cfg->hashed_flds = prof->segs[prof->segs_cnt - 1].match;
1878 rss_cfg->packet_hdr = prof->segs[prof->segs_cnt - 1].hdrs;
1879 rss_cfg->symm = prof->cfg.symm;
1880 ice_set_bit(vsi_handle, rss_cfg->vsis);
1882 LIST_ADD_TAIL(&rss_cfg->l_entry, &hw->rss_list_head);
1887 #define ICE_FLOW_PROF_HASH_S 0
1888 #define ICE_FLOW_PROF_HASH_M (0xFFFFFFFFULL << ICE_FLOW_PROF_HASH_S)
1889 #define ICE_FLOW_PROF_HDR_S 32
1890 #define ICE_FLOW_PROF_HDR_M (0x3FFFFFFFULL << ICE_FLOW_PROF_HDR_S)
1891 #define ICE_FLOW_PROF_ENCAP_S 63
1892 #define ICE_FLOW_PROF_ENCAP_M (BIT_ULL(ICE_FLOW_PROF_ENCAP_S))
1894 #define ICE_RSS_OUTER_HEADERS 1
1895 #define ICE_RSS_INNER_HEADERS 2
1897 /* Flow profile ID format:
1898 * [0:31] - Packet match fields
1899 * [32:62] - Protocol header
1900 * [63] - Encapsulation flag, 0 if non-tunneled, 1 if tunneled
1902 #define ICE_FLOW_GEN_PROFID(hash, hdr, segs_cnt) \
1903 (u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \
1904 (((u64)(hdr) << ICE_FLOW_PROF_HDR_S) & ICE_FLOW_PROF_HDR_M) | \
1905 ((u8)((segs_cnt) - 1) ? ICE_FLOW_PROF_ENCAP_M : 0))
1908 ice_rss_config_xor_word(struct ice_hw *hw, u8 prof_id, u8 src, u8 dst)
1910 u32 s = ((src % 4) << 3); /* byte shift */
1911 u32 v = dst | 0x80; /* value to program */
1912 u8 i = src / 4; /* register index */
1915 reg = rd32(hw, GLQF_HSYMM(prof_id, i));
1916 reg = (reg & ~(0xff << s)) | (v << s);
1917 wr32(hw, GLQF_HSYMM(prof_id, i), reg);
1921 ice_rss_config_xor(struct ice_hw *hw, u8 prof_id, u8 src, u8 dst, u8 len)
1924 ICE_FLOW_SW_FIELD_VECTOR_MAX / ICE_FLOW_FV_EXTRACT_SZ - 1;
1927 for (i = 0; i < len; i++) {
1928 ice_rss_config_xor_word(hw, prof_id,
1929 /* Yes, field vector in GLQF_HSYMM and
1930 * GLQF_HINSET is inversed!
1932 fv_last_word - (src + i),
1933 fv_last_word - (dst + i));
1934 ice_rss_config_xor_word(hw, prof_id,
1935 fv_last_word - (dst + i),
1936 fv_last_word - (src + i));
1941 ice_rss_update_symm(struct ice_hw *hw,
1942 struct ice_flow_prof *prof)
1944 struct ice_prof_map *map;
1947 map = ice_search_prof_id(hw, ICE_BLK_RSS, prof->id);
1948 prof_id = map->prof_id;
1950 /* clear to default */
1951 for (m = 0; m < 6; m++)
1952 wr32(hw, GLQF_HSYMM(prof_id, m), 0);
1953 if (prof->cfg.symm) {
1954 struct ice_flow_seg_info *seg =
1955 &prof->segs[prof->segs_cnt - 1];
1957 struct ice_flow_seg_xtrct *ipv4_src =
1958 &seg->fields[ICE_FLOW_FIELD_IDX_IPV4_SA].xtrct;
1959 struct ice_flow_seg_xtrct *ipv4_dst =
1960 &seg->fields[ICE_FLOW_FIELD_IDX_IPV4_DA].xtrct;
1961 struct ice_flow_seg_xtrct *ipv6_src =
1962 &seg->fields[ICE_FLOW_FIELD_IDX_IPV6_SA].xtrct;
1963 struct ice_flow_seg_xtrct *ipv6_dst =
1964 &seg->fields[ICE_FLOW_FIELD_IDX_IPV6_DA].xtrct;
1966 struct ice_flow_seg_xtrct *tcp_src =
1967 &seg->fields[ICE_FLOW_FIELD_IDX_TCP_SRC_PORT].xtrct;
1968 struct ice_flow_seg_xtrct *tcp_dst =
1969 &seg->fields[ICE_FLOW_FIELD_IDX_TCP_DST_PORT].xtrct;
1971 struct ice_flow_seg_xtrct *udp_src =
1972 &seg->fields[ICE_FLOW_FIELD_IDX_UDP_SRC_PORT].xtrct;
1973 struct ice_flow_seg_xtrct *udp_dst =
1974 &seg->fields[ICE_FLOW_FIELD_IDX_UDP_DST_PORT].xtrct;
1976 struct ice_flow_seg_xtrct *sctp_src =
1977 &seg->fields[ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT].xtrct;
1978 struct ice_flow_seg_xtrct *sctp_dst =
1979 &seg->fields[ICE_FLOW_FIELD_IDX_SCTP_DST_PORT].xtrct;
1982 if (ipv4_src->prot_id != 0 && ipv4_dst->prot_id != 0)
1983 ice_rss_config_xor(hw, prof_id,
1984 ipv4_src->idx, ipv4_dst->idx, 2);
1987 if (ipv6_src->prot_id != 0 && ipv6_dst->prot_id != 0)
1988 ice_rss_config_xor(hw, prof_id,
1989 ipv6_src->idx, ipv6_dst->idx, 8);
1992 if (tcp_src->prot_id != 0 && tcp_dst->prot_id != 0)
1993 ice_rss_config_xor(hw, prof_id,
1994 tcp_src->idx, tcp_dst->idx, 1);
1997 if (udp_src->prot_id != 0 && udp_dst->prot_id != 0)
1998 ice_rss_config_xor(hw, prof_id,
1999 udp_src->idx, udp_dst->idx, 1);
2002 if (sctp_src->prot_id != 0 && sctp_dst->prot_id != 0)
2003 ice_rss_config_xor(hw, prof_id,
2004 sctp_src->idx, sctp_dst->idx, 1);
2009 * ice_add_rss_cfg_sync - add an RSS configuration
2010 * @hw: pointer to the hardware structure
2011 * @vsi_handle: software VSI handle
2012 * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure
2013 * @addl_hdrs: protocol header fields
2014 * @segs_cnt: packet segment count
2015 * @symm: symmetric hash enable/disable
2017 * Assumption: lock has already been acquired for RSS list
2019 static enum ice_status
2020 ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
2021 u32 addl_hdrs, u8 segs_cnt, bool symm)
2023 const enum ice_block blk = ICE_BLK_RSS;
2024 struct ice_flow_prof *prof = NULL;
2025 struct ice_flow_seg_info *segs;
2026 enum ice_status status = ICE_SUCCESS;
2028 if (!segs_cnt || segs_cnt > ICE_FLOW_SEG_MAX)
2029 return ICE_ERR_PARAM;
2031 segs = (struct ice_flow_seg_info *)ice_calloc(hw, segs_cnt,
2034 return ICE_ERR_NO_MEMORY;
2036 /* Construct the packet segment info from the hashed fields */
2037 status = ice_flow_set_rss_seg_info(&segs[segs_cnt - 1], hashed_flds,
2042 /* Search for a flow profile that has matching headers, hash fields
2043 * and has the input VSI associated to it. If found, no further
2044 * operations required and exit.
2046 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
2048 ICE_FLOW_FIND_PROF_CHK_FLDS |
2049 ICE_FLOW_FIND_PROF_CHK_VSI);
2051 if (prof->cfg.symm == symm)
2053 prof->cfg.symm = symm;
2057 /* Check if a flow profile exists with the same protocol headers and
2058 * associated with the input VSI. If so disasscociate the VSI from
2059 * this profile. The VSI will be added to a new profile created with
2060 * the protocol header and new hash field configuration.
2062 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
2063 vsi_handle, ICE_FLOW_FIND_PROF_CHK_VSI);
2065 status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle);
2067 ice_rem_rss_list(hw, vsi_handle, prof);
2071 /* Remove profile if it has no VSIs associated */
2072 if (!ice_is_any_bit_set(prof->vsis, ICE_MAX_VSI)) {
2073 status = ice_flow_rem_prof(hw, blk, prof->id);
2079 /* Search for a profile that has same match fields only. If this
2080 * exists then associate the VSI to this profile.
2082 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
2084 ICE_FLOW_FIND_PROF_CHK_FLDS);
2086 if (prof->cfg.symm == symm) {
2087 status = ice_flow_assoc_prof(hw, blk, prof,
2090 status = ice_add_rss_list(hw, vsi_handle,
2093 /* if a profile exist but with different symmetric
2094 * requirement, just return error.
2096 status = ICE_ERR_NOT_SUPPORTED;
2101 /* Create a new flow profile with generated profile and packet
2102 * segment information.
2104 status = ice_flow_add_prof(hw, blk, ICE_FLOW_RX,
2105 ICE_FLOW_GEN_PROFID(hashed_flds,
2106 segs[segs_cnt - 1].hdrs,
2108 segs, segs_cnt, NULL, 0, &prof);
2112 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
2113 /* If association to a new flow profile failed then this profile can
2117 ice_flow_rem_prof(hw, blk, prof->id);
2121 status = ice_add_rss_list(hw, vsi_handle, prof);
2123 prof->cfg.symm = symm;
2128 ice_rss_update_symm(hw, prof);
2136 * ice_add_rss_cfg - add an RSS configuration with specified hashed fields
2137 * @hw: pointer to the hardware structure
2138 * @vsi_handle: software VSI handle
2139 * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure
2140 * @addl_hdrs: protocol header fields
2141 * @symm: symmetric hash enable/disable
2143 * This function will generate a flow profile based on fields associated with
2144 * the input fields to hash on, the flow type and use the VSI number to add
2145 * a flow entry to the profile.
2148 ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
2149 u32 addl_hdrs, bool symm)
2151 enum ice_status status;
2153 if (hashed_flds == ICE_HASH_INVALID ||
2154 !ice_is_vsi_valid(hw, vsi_handle))
2155 return ICE_ERR_PARAM;
2157 ice_acquire_lock(&hw->rss_locks);
2158 status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs,
2159 ICE_RSS_OUTER_HEADERS, symm);
2161 status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds,
2162 addl_hdrs, ICE_RSS_INNER_HEADERS,
2164 ice_release_lock(&hw->rss_locks);
2170 * ice_rem_rss_cfg_sync - remove an existing RSS configuration
2171 * @hw: pointer to the hardware structure
2172 * @vsi_handle: software VSI handle
2173 * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove
2174 * @addl_hdrs: Protocol header fields within a packet segment
2175 * @segs_cnt: packet segment count
2177 * Assumption: lock has already been acquired for RSS list
2179 static enum ice_status
2180 ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
2181 u32 addl_hdrs, u8 segs_cnt)
2183 const enum ice_block blk = ICE_BLK_RSS;
2184 struct ice_flow_seg_info *segs;
2185 struct ice_flow_prof *prof;
2186 enum ice_status status;
2188 segs = (struct ice_flow_seg_info *)ice_calloc(hw, segs_cnt,
2191 return ICE_ERR_NO_MEMORY;
2193 /* Construct the packet segment info from the hashed fields */
2194 status = ice_flow_set_rss_seg_info(&segs[segs_cnt - 1], hashed_flds,
2199 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
2201 ICE_FLOW_FIND_PROF_CHK_FLDS);
2203 status = ICE_ERR_DOES_NOT_EXIST;
2207 status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle);
2211 /* Remove RSS configuration from VSI context before deleting
2214 ice_rem_rss_list(hw, vsi_handle, prof);
2216 if (!ice_is_any_bit_set(prof->vsis, ICE_MAX_VSI))
2217 status = ice_flow_rem_prof(hw, blk, prof->id);
2225 * ice_rem_rss_cfg - remove an existing RSS config with matching hashed fields
2226 * @hw: pointer to the hardware structure
2227 * @vsi_handle: software VSI handle
2228 * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove
2229 * @addl_hdrs: Protocol header fields within a packet segment
2231 * This function will lookup the flow profile based on the input
2232 * hash field bitmap, iterate through the profile entry list of
2233 * that profile and find entry associated with input VSI to be
2234 * removed. Calls are made to underlying flow apis which will in
2235 * turn build or update buffers for RSS XLT1 section.
2238 ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
2241 enum ice_status status;
2243 if (hashed_flds == ICE_HASH_INVALID ||
2244 !ice_is_vsi_valid(hw, vsi_handle))
2245 return ICE_ERR_PARAM;
2247 ice_acquire_lock(&hw->rss_locks);
2248 status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs,
2249 ICE_RSS_OUTER_HEADERS);
2251 status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds,
2252 addl_hdrs, ICE_RSS_INNER_HEADERS);
2253 ice_release_lock(&hw->rss_locks);
2259 * ice_replay_rss_cfg - replay RSS configurations associated with VSI
2260 * @hw: pointer to the hardware structure
2261 * @vsi_handle: software VSI handle
2263 enum ice_status ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle)
2265 enum ice_status status = ICE_SUCCESS;
2266 struct ice_rss_cfg *r;
2268 if (!ice_is_vsi_valid(hw, vsi_handle))
2269 return ICE_ERR_PARAM;
2271 ice_acquire_lock(&hw->rss_locks);
2272 LIST_FOR_EACH_ENTRY(r, &hw->rss_list_head,
2273 ice_rss_cfg, l_entry) {
2274 if (ice_is_bit_set(r->vsis, vsi_handle)) {
2275 status = ice_add_rss_cfg_sync(hw, vsi_handle,
2278 ICE_RSS_OUTER_HEADERS,
2282 status = ice_add_rss_cfg_sync(hw, vsi_handle,
2285 ICE_RSS_INNER_HEADERS,
2291 ice_release_lock(&hw->rss_locks);
2297 * ice_get_rss_cfg - returns hashed fields for the given header types
2298 * @hw: pointer to the hardware structure
2299 * @vsi_handle: software VSI handle
2300 * @hdrs: protocol header type
2302 * This function will return the match fields of the first instance of flow
2303 * profile having the given header types and containing input VSI
2305 u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs)
2307 struct ice_rss_cfg *r, *rss_cfg = NULL;
2309 /* verify if the protocol header is non zero and VSI is valid */
2310 if (hdrs == ICE_FLOW_SEG_HDR_NONE || !ice_is_vsi_valid(hw, vsi_handle))
2311 return ICE_HASH_INVALID;
2313 ice_acquire_lock(&hw->rss_locks);
2314 LIST_FOR_EACH_ENTRY(r, &hw->rss_list_head,
2315 ice_rss_cfg, l_entry)
2316 if (ice_is_bit_set(r->vsis, vsi_handle) &&
2317 r->packet_hdr == hdrs) {
2321 ice_release_lock(&hw->rss_locks);
2323 return rss_cfg ? rss_cfg->hashed_flds : ICE_HASH_INVALID;