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
23 /* Protocol header fields are extracted at the word boundaries as word-sized
24 * values. Specify the displacement value of some non-word-aligned fields needed
25 * to compute the offset of words containing the fields in the corresponding
26 * protocol headers. Displacement values are expressed in number of bits.
28 #define ICE_FLOW_FLD_IPV6_TTL_DSCP_DISP (-4)
29 #define ICE_FLOW_FLD_IPV6_TTL_PROT_DISP ((-2) * BITS_PER_BYTE)
30 #define ICE_FLOW_FLD_IPV6_TTL_TTL_DISP ((-1) * BITS_PER_BYTE)
32 /* Describe properties of a protocol header field */
33 struct ice_flow_field_info {
34 enum ice_flow_seg_hdr hdr;
35 s16 off; /* Offset from start of a protocol header, in bits */
36 u16 size; /* Size of fields in bits */
39 #define ICE_FLOW_FLD_INFO(_hdr, _offset_bytes, _size_bytes) { \
41 .off = _offset_bytes * BITS_PER_BYTE, \
42 .size = _size_bytes * BITS_PER_BYTE, \
45 /* Table containing properties of supported protocol header fields */
47 struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = {
49 /* ICE_FLOW_FIELD_IDX_ETH_DA */
50 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 0, ETH_ALEN),
51 /* ICE_FLOW_FIELD_IDX_ETH_SA */
52 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, ETH_ALEN, ETH_ALEN),
53 /* ICE_FLOW_FIELD_IDX_S_VLAN */
54 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 12, ICE_FLOW_FLD_SZ_VLAN),
55 /* ICE_FLOW_FIELD_IDX_C_VLAN */
56 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 14, ICE_FLOW_FLD_SZ_VLAN),
57 /* ICE_FLOW_FIELD_IDX_ETH_TYPE */
58 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 12, ICE_FLOW_FLD_SZ_ETH_TYPE),
60 /* ICE_FLOW_FIELD_IDX_IP_DSCP */
61 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 1, 1),
62 /* ICE_FLOW_FIELD_IDX_IP_TTL */
63 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NONE, 8, 1),
64 /* ICE_FLOW_FIELD_IDX_IP_PROT */
65 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NONE, 9, ICE_FLOW_FLD_SZ_IP_PROT),
66 /* ICE_FLOW_FIELD_IDX_IPV4_SA */
67 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 12, ICE_FLOW_FLD_SZ_IPV4_ADDR),
68 /* ICE_FLOW_FIELD_IDX_IPV4_DA */
69 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 16, ICE_FLOW_FLD_SZ_IPV4_ADDR),
71 /* ICE_FLOW_FIELD_IDX_IPV6_SA */
72 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, ICE_FLOW_FLD_SZ_IPV6_ADDR),
73 /* ICE_FLOW_FIELD_IDX_IPV6_DA */
74 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, ICE_FLOW_FLD_SZ_IPV6_ADDR),
76 /* ICE_FLOW_FIELD_IDX_TCP_SRC_PORT */
77 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 0, ICE_FLOW_FLD_SZ_PORT),
78 /* ICE_FLOW_FIELD_IDX_TCP_DST_PORT */
79 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 2, ICE_FLOW_FLD_SZ_PORT),
80 /* ICE_FLOW_FIELD_IDX_UDP_SRC_PORT */
81 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 0, ICE_FLOW_FLD_SZ_PORT),
82 /* ICE_FLOW_FIELD_IDX_UDP_DST_PORT */
83 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 2, ICE_FLOW_FLD_SZ_PORT),
84 /* ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT */
85 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 0, ICE_FLOW_FLD_SZ_PORT),
86 /* ICE_FLOW_FIELD_IDX_SCTP_DST_PORT */
87 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 2, ICE_FLOW_FLD_SZ_PORT),
88 /* ICE_FLOW_FIELD_IDX_TCP_FLAGS */
89 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 13, ICE_FLOW_FLD_SZ_TCP_FLAGS),
91 /* ICE_FLOW_FIELD_IDX_ARP_SIP */
92 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 14, ICE_FLOW_FLD_SZ_IPV4_ADDR),
93 /* ICE_FLOW_FIELD_IDX_ARP_DIP */
94 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 24, ICE_FLOW_FLD_SZ_IPV4_ADDR),
95 /* ICE_FLOW_FIELD_IDX_ARP_SHA */
96 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 8, ETH_ALEN),
97 /* ICE_FLOW_FIELD_IDX_ARP_DHA */
98 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 18, ETH_ALEN),
99 /* ICE_FLOW_FIELD_IDX_ARP_OP */
100 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 6, ICE_FLOW_FLD_SZ_ARP_OPER),
102 /* ICE_FLOW_FIELD_IDX_ICMP_TYPE */
103 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 0, ICE_FLOW_FLD_SZ_ICMP_TYPE),
104 /* ICE_FLOW_FIELD_IDX_ICMP_CODE */
105 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 1, ICE_FLOW_FLD_SZ_ICMP_CODE),
107 /* ICE_FLOW_FIELD_IDX_GRE_KEYID */
108 ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GRE, 12, ICE_FLOW_FLD_SZ_GRE_KEYID),
111 /* Bitmaps indicating relevant packet types for a particular protocol header
113 * Packet types for packets with an Outer/First/Single MAC header
115 static const u32 ice_ptypes_mac_ofos[] = {
116 0xFDC00CC6, 0xBFBF7F7E, 0xF7EFDFDF, 0xFEFDFDFB,
117 0x03BF7F7E, 0x00000000, 0x00000000, 0x00000000,
118 0x000B0F0F, 0x00000000, 0x00000000, 0x00000000,
119 0x00000000, 0x00000000, 0x00000000, 0x00000000,
120 0x00000000, 0x00000000, 0x00000000, 0x00000000,
121 0x00000000, 0x00000000, 0x00000000, 0x00000000,
122 0x00000000, 0x00000000, 0x00000000, 0x00000000,
123 0x00000000, 0x00000000, 0x00000000, 0x00000000,
126 /* Packet types for packets with an Innermost/Last MAC VLAN header */
127 static const u32 ice_ptypes_macvlan_il[] = {
128 0x00000000, 0xBC000000, 0x000001DF, 0xF0000000,
129 0x0000077E, 0x00000000, 0x00000000, 0x00000000,
130 0x00000000, 0x00000000, 0x00000000, 0x00000000,
131 0x00000000, 0x00000000, 0x00000000, 0x00000000,
132 0x00000000, 0x00000000, 0x00000000, 0x00000000,
133 0x00000000, 0x00000000, 0x00000000, 0x00000000,
134 0x00000000, 0x00000000, 0x00000000, 0x00000000,
135 0x00000000, 0x00000000, 0x00000000, 0x00000000,
138 /* Packet types for packets with an Outer/First/Single IPv4 header */
139 static const u32 ice_ptypes_ipv4_ofos[] = {
140 0xFDC00000, 0xBFBF7F7E, 0x00EFDFDF, 0x00000000,
141 0x00000000, 0x00000000, 0x00000000, 0x00000000,
142 0x0003000F, 0x00000000, 0x00000000, 0x00000000,
143 0x00000000, 0x00000000, 0x00000000, 0x00000000,
144 0x00000000, 0x00000000, 0x00000000, 0x00000000,
145 0x00000000, 0x00000000, 0x00000000, 0x00000000,
146 0x00000000, 0x00000000, 0x00000000, 0x00000000,
147 0x00000000, 0x00000000, 0x00000000, 0x00000000,
150 /* Packet types for packets with an Innermost/Last IPv4 header */
151 static const u32 ice_ptypes_ipv4_il[] = {
152 0xE0000000, 0xB807700E, 0x8001DC03, 0xE01DC03B,
153 0x0007700E, 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 0x00000000, 0x00000000, 0x00000000, 0x00000000,
162 /* Packet types for packets with an Outer/First/Single IPv6 header */
163 static const u32 ice_ptypes_ipv6_ofos[] = {
164 0x00000000, 0x00000000, 0xF7000000, 0xFEFDFDFB,
165 0x03BF7F7E, 0x00000000, 0x00000000, 0x00000000,
166 0x00080F00, 0x00000000, 0x00000000, 0x00000000,
167 0x00000000, 0x00000000, 0x00000000, 0x00000000,
168 0x00000000, 0x00000000, 0x00000000, 0x00000000,
169 0x00000000, 0x00000000, 0x00000000, 0x00000000,
170 0x00000000, 0x00000000, 0x00000000, 0x00000000,
171 0x00000000, 0x00000000, 0x00000000, 0x00000000,
174 /* Packet types for packets with an Innermost/Last IPv6 header */
175 static const u32 ice_ptypes_ipv6_il[] = {
176 0x00000000, 0x03B80770, 0x00EE01DC, 0x0EE00000,
177 0x03B80770, 0x00000000, 0x00000000, 0x00000000,
178 0x00000000, 0x00000000, 0x00000000, 0x00000000,
179 0x00000000, 0x00000000, 0x00000000, 0x00000000,
180 0x00000000, 0x00000000, 0x00000000, 0x00000000,
181 0x00000000, 0x00000000, 0x00000000, 0x00000000,
182 0x00000000, 0x00000000, 0x00000000, 0x00000000,
183 0x00000000, 0x00000000, 0x00000000, 0x00000000,
186 /* Packet types for packets with an Outermost/First ARP header */
187 static const u32 ice_ptypes_arp_of[] = {
188 0x00000800, 0x00000000, 0x00000000, 0x00000000,
189 0x00000000, 0x00000000, 0x00000000, 0x00000000,
190 0x00000000, 0x00000000, 0x00000000, 0x00000000,
191 0x00000000, 0x00000000, 0x00000000, 0x00000000,
192 0x00000000, 0x00000000, 0x00000000, 0x00000000,
193 0x00000000, 0x00000000, 0x00000000, 0x00000000,
194 0x00000000, 0x00000000, 0x00000000, 0x00000000,
195 0x00000000, 0x00000000, 0x00000000, 0x00000000,
198 /* UDP Packet types for non-tunneled packets or tunneled
199 * packets with inner UDP.
201 static const u32 ice_ptypes_udp_il[] = {
202 0x81000000, 0x20204040, 0x04081010, 0x80810102,
203 0x00204040, 0x00000000, 0x00000000, 0x00000000,
204 0x00000000, 0x00000000, 0x00000000, 0x00000000,
205 0x00000000, 0x00000000, 0x00000000, 0x00000000,
206 0x00000000, 0x00000000, 0x00000000, 0x00000000,
207 0x00000000, 0x00000000, 0x00000000, 0x00000000,
208 0x00000000, 0x00000000, 0x00000000, 0x00000000,
209 0x00000000, 0x00000000, 0x00000000, 0x00000000,
212 /* Packet types for packets with an Innermost/Last TCP header */
213 static const u32 ice_ptypes_tcp_il[] = {
214 0x04000000, 0x80810102, 0x10204040, 0x42040408,
215 0x00810102, 0x00000000, 0x00000000, 0x00000000,
216 0x00000000, 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,
224 /* Packet types for packets with an Innermost/Last SCTP header */
225 static const u32 ice_ptypes_sctp_il[] = {
226 0x08000000, 0x01020204, 0x20408081, 0x04080810,
227 0x01020204, 0x00000000, 0x00000000, 0x00000000,
228 0x00000000, 0x00000000, 0x00000000, 0x00000000,
229 0x00000000, 0x00000000, 0x00000000, 0x00000000,
230 0x00000000, 0x00000000, 0x00000000, 0x00000000,
231 0x00000000, 0x00000000, 0x00000000, 0x00000000,
232 0x00000000, 0x00000000, 0x00000000, 0x00000000,
233 0x00000000, 0x00000000, 0x00000000, 0x00000000,
236 /* Packet types for packets with an Outermost/First ICMP header */
237 static const u32 ice_ptypes_icmp_of[] = {
238 0x10000000, 0x00000000, 0x00000000, 0x00000000,
239 0x00000000, 0x00000000, 0x00000000, 0x00000000,
240 0x00000000, 0x00000000, 0x00000000, 0x00000000,
241 0x00000000, 0x00000000, 0x00000000, 0x00000000,
242 0x00000000, 0x00000000, 0x00000000, 0x00000000,
243 0x00000000, 0x00000000, 0x00000000, 0x00000000,
244 0x00000000, 0x00000000, 0x00000000, 0x00000000,
245 0x00000000, 0x00000000, 0x00000000, 0x00000000,
248 /* Packet types for packets with an Innermost/Last ICMP header */
249 static const u32 ice_ptypes_icmp_il[] = {
250 0x00000000, 0x02040408, 0x40810102, 0x08101020,
251 0x02040408, 0x00000000, 0x00000000, 0x00000000,
252 0x00000000, 0x00000000, 0x00000000, 0x00000000,
253 0x00000000, 0x00000000, 0x00000000, 0x00000000,
254 0x00000000, 0x00000000, 0x00000000, 0x00000000,
255 0x00000000, 0x00000000, 0x00000000, 0x00000000,
256 0x00000000, 0x00000000, 0x00000000, 0x00000000,
257 0x00000000, 0x00000000, 0x00000000, 0x00000000,
260 /* Packet types for packets with an Outermost/First GRE header */
261 static const u32 ice_ptypes_gre_of[] = {
262 0x00000000, 0xBFBF7800, 0x00EFDFDF, 0xFEFDE000,
263 0x03BF7F7E, 0x00000000, 0x00000000, 0x00000000,
264 0x00000000, 0x00000000, 0x00000000, 0x00000000,
265 0x00000000, 0x00000000, 0x00000000, 0x00000000,
266 0x00000000, 0x00000000, 0x00000000, 0x00000000,
267 0x00000000, 0x00000000, 0x00000000, 0x00000000,
268 0x00000000, 0x00000000, 0x00000000, 0x00000000,
269 0x00000000, 0x00000000, 0x00000000, 0x00000000,
272 /* Packet types for packets with an Innermost/Last MAC header */
273 static const u32 ice_ptypes_mac_il[] = {
274 0x00000000, 0x00000000, 0x00EFDE00, 0x00000000,
275 0x03BF7800, 0x00000000, 0x00000000, 0x00000000,
276 0x00000000, 0x00000000, 0x00000000, 0x00000000,
277 0x00000000, 0x00000000, 0x00000000, 0x00000000,
278 0x00000000, 0x00000000, 0x00000000, 0x00000000,
279 0x00000000, 0x00000000, 0x00000000, 0x00000000,
280 0x00000000, 0x00000000, 0x00000000, 0x00000000,
281 0x00000000, 0x00000000, 0x00000000, 0x00000000,
284 /* Manage parameters and info. used during the creation of a flow profile */
285 struct ice_flow_prof_params {
287 u16 entry_length; /* # of bytes formatted entry will require */
289 struct ice_flow_prof *prof;
291 /* For ACL, the es[0] will have the data of ICE_RX_MDID_PKT_FLAGS_15_0
292 * This will give us the direction flags.
294 struct ice_fv_word es[ICE_MAX_FV_WORDS];
296 ice_declare_bitmap(ptypes, ICE_FLOW_PTYPE_MAX);
300 * ice_is_pow2 - check if integer value is a power of 2
301 * @val: unsigned integer to be validated
303 static bool ice_is_pow2(u64 val)
305 return (val && !(val & (val - 1)));
308 #define ICE_FLOW_SEG_HDRS_L2_MASK \
309 (ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN)
310 #define ICE_FLOW_SEG_HDRS_L3_MASK \
311 (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_ARP)
312 #define ICE_FLOW_SEG_HDRS_L4_MASK \
313 (ICE_FLOW_SEG_HDR_ICMP | ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | \
314 ICE_FLOW_SEG_HDR_SCTP)
317 * ice_flow_val_hdrs - validates packet segments for valid protocol headers
318 * @segs: array of one or more packet segments that describe the flow
319 * @segs_cnt: number of packet segments provided
321 static enum ice_status
322 ice_flow_val_hdrs(struct ice_flow_seg_info *segs, u8 segs_cnt)
324 const u32 masks = (ICE_FLOW_SEG_HDRS_L2_MASK |
325 ICE_FLOW_SEG_HDRS_L3_MASK |
326 ICE_FLOW_SEG_HDRS_L4_MASK);
329 for (i = 0; i < segs_cnt; i++) {
330 /* No header specified */
331 if (!(segs[i].hdrs & masks) || (segs[i].hdrs & ~masks))
332 return ICE_ERR_PARAM;
334 /* Multiple L3 headers */
335 if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK &&
336 !ice_is_pow2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK))
337 return ICE_ERR_PARAM;
339 /* Multiple L4 headers */
340 if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK &&
341 !ice_is_pow2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK))
342 return ICE_ERR_PARAM;
348 /* Sizes of fixed known protocol headers without header options */
349 #define ICE_FLOW_PROT_HDR_SZ_MAC 14
350 #define ICE_FLOW_PROT_HDR_SZ_MAC_VLAN (ICE_FLOW_PROT_HDR_SZ_MAC + 2)
351 #define ICE_FLOW_PROT_HDR_SZ_IPV4 20
352 #define ICE_FLOW_PROT_HDR_SZ_IPV6 40
353 #define ICE_FLOW_PROT_HDR_SZ_ARP 28
354 #define ICE_FLOW_PROT_HDR_SZ_ICMP 8
355 #define ICE_FLOW_PROT_HDR_SZ_TCP 20
356 #define ICE_FLOW_PROT_HDR_SZ_UDP 8
357 #define ICE_FLOW_PROT_HDR_SZ_SCTP 12
360 * ice_flow_calc_seg_sz - calculates size of a packet segment based on headers
361 * @params: information about the flow to be processed
362 * @seg: index of packet segment whose header size is to be determined
364 static u16 ice_flow_calc_seg_sz(struct ice_flow_prof_params *params, u8 seg)
369 sz = (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_VLAN) ?
370 ICE_FLOW_PROT_HDR_SZ_MAC_VLAN : ICE_FLOW_PROT_HDR_SZ_MAC;
373 if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4)
374 sz += ICE_FLOW_PROT_HDR_SZ_IPV4;
375 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV6)
376 sz += ICE_FLOW_PROT_HDR_SZ_IPV6;
377 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_ARP)
378 sz += ICE_FLOW_PROT_HDR_SZ_ARP;
379 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK)
380 /* A L3 header is required if L4 is specified */
384 if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_ICMP)
385 sz += ICE_FLOW_PROT_HDR_SZ_ICMP;
386 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_TCP)
387 sz += ICE_FLOW_PROT_HDR_SZ_TCP;
388 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_UDP)
389 sz += ICE_FLOW_PROT_HDR_SZ_UDP;
390 else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_SCTP)
391 sz += ICE_FLOW_PROT_HDR_SZ_SCTP;
397 * ice_flow_proc_seg_hdrs - process protocol headers present in pkt segments
398 * @params: information about the flow to be processed
400 * This function identifies the packet types associated with the protocol
401 * headers being present in packet segments of the specified flow profile.
403 static enum ice_status
404 ice_flow_proc_seg_hdrs(struct ice_flow_prof_params *params)
406 struct ice_flow_prof *prof;
409 ice_memset(params->ptypes, 0xff, sizeof(params->ptypes),
414 for (i = 0; i < params->prof->segs_cnt; i++) {
415 const ice_bitmap_t *src;
418 hdrs = prof->segs[i].hdrs;
420 if (hdrs & ICE_FLOW_SEG_HDR_ETH) {
421 src = !i ? (const ice_bitmap_t *)ice_ptypes_mac_ofos :
422 (const ice_bitmap_t *)ice_ptypes_mac_il;
423 ice_and_bitmap(params->ptypes, params->ptypes, src,
425 hdrs &= ~ICE_FLOW_SEG_HDR_ETH;
428 if (i && hdrs & ICE_FLOW_SEG_HDR_VLAN) {
429 src = (const ice_bitmap_t *)ice_ptypes_macvlan_il;
430 ice_and_bitmap(params->ptypes, params->ptypes, src,
432 hdrs &= ~ICE_FLOW_SEG_HDR_VLAN;
435 if (!i && hdrs & ICE_FLOW_SEG_HDR_ARP) {
436 ice_and_bitmap(params->ptypes, params->ptypes,
437 (const ice_bitmap_t *)ice_ptypes_arp_of,
439 hdrs &= ~ICE_FLOW_SEG_HDR_ARP;
442 if (hdrs & ICE_FLOW_SEG_HDR_IPV4) {
443 src = !i ? (const ice_bitmap_t *)ice_ptypes_ipv4_ofos :
444 (const ice_bitmap_t *)ice_ptypes_ipv4_il;
445 ice_and_bitmap(params->ptypes, params->ptypes, src,
447 hdrs &= ~ICE_FLOW_SEG_HDR_IPV4;
448 } else if (hdrs & ICE_FLOW_SEG_HDR_IPV6) {
449 src = !i ? (const ice_bitmap_t *)ice_ptypes_ipv6_ofos :
450 (const ice_bitmap_t *)ice_ptypes_ipv6_il;
451 ice_and_bitmap(params->ptypes, params->ptypes, src,
453 hdrs &= ~ICE_FLOW_SEG_HDR_IPV6;
456 if (hdrs & ICE_FLOW_SEG_HDR_ICMP) {
457 src = !i ? (const ice_bitmap_t *)ice_ptypes_icmp_of :
458 (const ice_bitmap_t *)ice_ptypes_icmp_il;
459 ice_and_bitmap(params->ptypes, params->ptypes, src,
461 hdrs &= ~ICE_FLOW_SEG_HDR_ICMP;
462 } else if (hdrs & ICE_FLOW_SEG_HDR_UDP) {
463 src = (const ice_bitmap_t *)ice_ptypes_udp_il;
464 ice_and_bitmap(params->ptypes, params->ptypes, src,
466 hdrs &= ~ICE_FLOW_SEG_HDR_UDP;
467 } else if (hdrs & ICE_FLOW_SEG_HDR_TCP) {
468 ice_and_bitmap(params->ptypes, params->ptypes,
469 (const ice_bitmap_t *)ice_ptypes_tcp_il,
471 hdrs &= ~ICE_FLOW_SEG_HDR_TCP;
472 } else if (hdrs & ICE_FLOW_SEG_HDR_SCTP) {
473 src = (const ice_bitmap_t *)ice_ptypes_sctp_il;
474 ice_and_bitmap(params->ptypes, params->ptypes, src,
476 hdrs &= ~ICE_FLOW_SEG_HDR_SCTP;
477 } else if (hdrs & ICE_FLOW_SEG_HDR_GRE) {
479 src = (const ice_bitmap_t *)ice_ptypes_gre_of;
480 ice_and_bitmap(params->ptypes, params->ptypes,
481 src, ICE_FLOW_PTYPE_MAX);
483 hdrs &= ~ICE_FLOW_SEG_HDR_GRE;
491 * ice_flow_xtract_pkt_flags - Create an extr sequence entry for packet flags
492 * @hw: pointer to the HW struct
493 * @params: information about the flow to be processed
494 * @flags: The value of pkt_flags[x:x] in RX/TX MDID metadata.
496 * This function will allocate an extraction sequence entries for a DWORD size
497 * chunk of the packet flags.
499 static enum ice_status
500 ice_flow_xtract_pkt_flags(struct ice_hw *hw,
501 struct ice_flow_prof_params *params,
502 enum ice_flex_mdid_pkt_flags flags)
504 u8 fv_words = hw->blk[params->blk].es.fvw;
507 /* Make sure the number of extraction sequence entries required does not
508 * exceed the block's capacity.
510 if (params->es_cnt >= fv_words)
511 return ICE_ERR_MAX_LIMIT;
513 /* some blocks require a reversed field vector layout */
514 if (hw->blk[params->blk].es.reverse)
515 idx = fv_words - params->es_cnt - 1;
517 idx = params->es_cnt;
519 params->es[idx].prot_id = ICE_PROT_META_ID;
520 params->es[idx].off = flags;
527 * ice_flow_xtract_fld - Create an extraction sequence entry for the given field
528 * @hw: pointer to the HW struct
529 * @params: information about the flow to be processed
530 * @seg: packet segment index of the field to be extracted
531 * @fld: ID of field to be extracted
533 * This function determines the protocol ID, offset, and size of the given
534 * field. It then allocates one or more extraction sequence entries for the
535 * given field, and fill the entries with protocol ID and offset information.
537 static enum ice_status
538 ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params,
539 u8 seg, enum ice_flow_field fld)
541 enum ice_flow_field sib = ICE_FLOW_FIELD_IDX_MAX;
542 enum ice_prot_id prot_id = ICE_PROT_ID_INVAL;
543 u8 fv_words = hw->blk[params->blk].es.fvw;
544 struct ice_flow_fld_info *flds;
545 u16 cnt, ese_bits, i;
549 flds = params->prof->segs[seg].fields;
552 case ICE_FLOW_FIELD_IDX_ETH_DA:
553 case ICE_FLOW_FIELD_IDX_ETH_SA:
554 case ICE_FLOW_FIELD_IDX_S_VLAN:
555 case ICE_FLOW_FIELD_IDX_C_VLAN:
556 prot_id = seg == 0 ? ICE_PROT_MAC_OF_OR_S : ICE_PROT_MAC_IL;
558 case ICE_FLOW_FIELD_IDX_ETH_TYPE:
559 prot_id = seg == 0 ? ICE_PROT_ETYPE_OL : ICE_PROT_ETYPE_IL;
561 case ICE_FLOW_FIELD_IDX_IP_DSCP:
562 if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV6)
563 adj = ICE_FLOW_FLD_IPV6_TTL_DSCP_DISP;
565 case ICE_FLOW_FIELD_IDX_IP_TTL:
566 case ICE_FLOW_FIELD_IDX_IP_PROT:
567 /* Some fields are located at different offsets in IPv4 and
570 if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4) {
571 prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S :
573 /* TTL and PROT share the same extraction seq. entry.
574 * Each is considered a sibling to the other in term
575 * sharing the same extraction sequence entry.
577 if (fld == ICE_FLOW_FIELD_IDX_IP_TTL)
578 sib = ICE_FLOW_FIELD_IDX_IP_PROT;
579 else if (fld == ICE_FLOW_FIELD_IDX_IP_PROT)
580 sib = ICE_FLOW_FIELD_IDX_IP_TTL;
581 } else if (params->prof->segs[seg].hdrs &
582 ICE_FLOW_SEG_HDR_IPV6) {
583 prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S :
585 if (fld == ICE_FLOW_FIELD_IDX_IP_TTL)
586 adj = ICE_FLOW_FLD_IPV6_TTL_TTL_DISP;
587 else if (fld == ICE_FLOW_FIELD_IDX_IP_PROT)
588 adj = ICE_FLOW_FLD_IPV6_TTL_PROT_DISP;
591 case ICE_FLOW_FIELD_IDX_IPV4_SA:
592 case ICE_FLOW_FIELD_IDX_IPV4_DA:
593 prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL;
595 case ICE_FLOW_FIELD_IDX_IPV6_SA:
596 case ICE_FLOW_FIELD_IDX_IPV6_DA:
597 prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL;
599 case ICE_FLOW_FIELD_IDX_TCP_SRC_PORT:
600 case ICE_FLOW_FIELD_IDX_TCP_DST_PORT:
601 case ICE_FLOW_FIELD_IDX_TCP_FLAGS:
602 prot_id = ICE_PROT_TCP_IL;
604 case ICE_FLOW_FIELD_IDX_UDP_SRC_PORT:
605 case ICE_FLOW_FIELD_IDX_UDP_DST_PORT:
606 prot_id = seg == 0 ? ICE_PROT_UDP_IL_OR_S : ICE_PROT_UDP_OF;
608 case ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT:
609 case ICE_FLOW_FIELD_IDX_SCTP_DST_PORT:
610 prot_id = ICE_PROT_SCTP_IL;
612 case ICE_FLOW_FIELD_IDX_ARP_SIP:
613 case ICE_FLOW_FIELD_IDX_ARP_DIP:
614 case ICE_FLOW_FIELD_IDX_ARP_SHA:
615 case ICE_FLOW_FIELD_IDX_ARP_DHA:
616 case ICE_FLOW_FIELD_IDX_ARP_OP:
617 prot_id = ICE_PROT_ARP_OF;
619 case ICE_FLOW_FIELD_IDX_ICMP_TYPE:
620 case ICE_FLOW_FIELD_IDX_ICMP_CODE:
621 /* ICMP type and code share the same extraction seq. entry */
622 prot_id = (params->prof->segs[seg].hdrs &
623 ICE_FLOW_SEG_HDR_IPV4) ?
624 ICE_PROT_ICMP_IL : ICE_PROT_ICMPV6_IL;
625 sib = fld == ICE_FLOW_FIELD_IDX_ICMP_TYPE ?
626 ICE_FLOW_FIELD_IDX_ICMP_CODE :
627 ICE_FLOW_FIELD_IDX_ICMP_TYPE;
629 case ICE_FLOW_FIELD_IDX_GRE_KEYID:
630 prot_id = ICE_PROT_GRE_OF;
633 return ICE_ERR_NOT_IMPL;
636 /* Each extraction sequence entry is a word in size, and extracts a
637 * word-aligned offset from a protocol header.
639 ese_bits = ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE;
641 flds[fld].xtrct.prot_id = prot_id;
642 flds[fld].xtrct.off = (ice_flds_info[fld].off / ese_bits) *
643 ICE_FLOW_FV_EXTRACT_SZ;
644 flds[fld].xtrct.disp = (u8)((ice_flds_info[fld].off + adj) % ese_bits);
645 flds[fld].xtrct.idx = params->es_cnt;
647 /* Adjust the next field-entry index after accommodating the number of
648 * entries this field consumes
650 cnt = DIVIDE_AND_ROUND_UP(flds[fld].xtrct.disp +
651 ice_flds_info[fld].size, ese_bits);
653 /* Fill in the extraction sequence entries needed for this field */
654 off = flds[fld].xtrct.off;
655 for (i = 0; i < cnt; i++) {
656 /* Only consume an extraction sequence entry if there is no
657 * sibling field associated with this field or the sibling entry
658 * already extracts the word shared with this field.
660 if (sib == ICE_FLOW_FIELD_IDX_MAX ||
661 flds[sib].xtrct.prot_id == ICE_PROT_ID_INVAL ||
662 flds[sib].xtrct.off != off) {
665 /* Make sure the number of extraction sequence required
666 * does not exceed the block's capability
668 if (params->es_cnt >= fv_words)
669 return ICE_ERR_MAX_LIMIT;
671 /* some blocks require a reversed field vector layout */
672 if (hw->blk[params->blk].es.reverse)
673 idx = fv_words - params->es_cnt - 1;
675 idx = params->es_cnt;
677 params->es[idx].prot_id = prot_id;
678 params->es[idx].off = off;
682 off += ICE_FLOW_FV_EXTRACT_SZ;
689 * ice_flow_xtract_raws - Create extract sequence entries for raw bytes
690 * @hw: pointer to the HW struct
691 * @params: information about the flow to be processed
692 * @seg: index of packet segment whose raw fields are to be be extracted
694 static enum ice_status
695 ice_flow_xtract_raws(struct ice_hw *hw, struct ice_flow_prof_params *params,
701 if (!params->prof->segs[seg].raws_cnt)
704 if (params->prof->segs[seg].raws_cnt >
705 ARRAY_SIZE(params->prof->segs[seg].raws))
706 return ICE_ERR_MAX_LIMIT;
708 /* Offsets within the segment headers are not supported */
709 hdrs_sz = ice_flow_calc_seg_sz(params, seg);
711 return ICE_ERR_PARAM;
713 for (i = 0; i < params->prof->segs[seg].raws_cnt; i++) {
714 struct ice_flow_seg_fld_raw *raw;
717 raw = ¶ms->prof->segs[seg].raws[i];
719 /* Only support matching raw fields in the payload */
720 if (raw->off < hdrs_sz)
721 return ICE_ERR_PARAM;
723 /* Convert the segment-relative offset into payload-relative
726 off = raw->off - hdrs_sz;
728 /* Storing extraction information */
729 raw->info.xtrct.prot_id = ICE_PROT_PAY;
730 raw->info.xtrct.off = (off / ICE_FLOW_FV_EXTRACT_SZ) *
731 ICE_FLOW_FV_EXTRACT_SZ;
732 raw->info.xtrct.disp = (off % ICE_FLOW_FV_EXTRACT_SZ) *
734 raw->info.xtrct.idx = params->es_cnt;
736 /* Determine the number of field vector entries this raw field
739 cnt = DIVIDE_AND_ROUND_UP(raw->info.xtrct.disp +
740 (raw->info.src.last * BITS_PER_BYTE),
741 (ICE_FLOW_FV_EXTRACT_SZ *
743 off = raw->info.xtrct.off;
744 for (j = 0; j < cnt; j++) {
745 /* Make sure the number of extraction sequence required
746 * does not exceed the block's capability
748 if (params->es_cnt >= hw->blk[params->blk].es.count ||
749 params->es_cnt >= ICE_MAX_FV_WORDS)
750 return ICE_ERR_MAX_LIMIT;
752 params->es[params->es_cnt].prot_id = ICE_PROT_PAY;
753 params->es[params->es_cnt].off = off;
755 off += ICE_FLOW_FV_EXTRACT_SZ;
763 * ice_flow_create_xtrct_seq - Create an extraction sequence for given segments
764 * @hw: pointer to the HW struct
765 * @params: information about the flow to be processed
767 * This function iterates through all matched fields in the given segments, and
768 * creates an extraction sequence for the fields.
770 static enum ice_status
771 ice_flow_create_xtrct_seq(struct ice_hw *hw,
772 struct ice_flow_prof_params *params)
774 enum ice_status status = ICE_SUCCESS;
777 /* For ACL, we also need to extract the direction bit (Rx,Tx) data from
780 if (params->blk == ICE_BLK_ACL)
781 ice_flow_xtract_pkt_flags(hw, params,
782 ICE_RX_MDID_PKT_FLAGS_15_0);
784 for (i = 0; i < params->prof->segs_cnt; i++) {
785 u64 match = params->prof->segs[i].match;
788 for (j = 0; j < ICE_FLOW_FIELD_IDX_MAX && match; j++) {
789 const u64 bit = BIT_ULL(j);
792 status = ice_flow_xtract_fld
793 (hw, params, i, (enum ice_flow_field)j);
800 /* Process raw matching bytes */
801 status = ice_flow_xtract_raws(hw, params, i);
810 * ice_flow_proc_segs - process all packet segments associated with a profile
811 * @hw: pointer to the HW struct
812 * @params: information about the flow to be processed
814 static enum ice_status
815 ice_flow_proc_segs(struct ice_hw *hw, struct ice_flow_prof_params *params)
817 enum ice_status status;
819 status = ice_flow_proc_seg_hdrs(params);
823 status = ice_flow_create_xtrct_seq(hw, params);
827 switch (params->blk) {
829 /* Only header information is provided for RSS configuration.
830 * No further processing is needed.
832 status = ICE_SUCCESS;
835 status = ICE_SUCCESS;
839 return ICE_ERR_NOT_IMPL;
845 #define ICE_FLOW_FIND_PROF_CHK_FLDS 0x00000001
846 #define ICE_FLOW_FIND_PROF_CHK_VSI 0x00000002
849 * ice_flow_find_prof_conds - Find a profile matching headers and conditions
850 * @hw: pointer to the HW struct
851 * @blk: classification stage
852 * @dir: flow direction
853 * @segs: array of one or more packet segments that describe the flow
854 * @segs_cnt: number of packet segments provided
855 * @vsi_handle: software VSI handle to check VSI (ICE_FLOW_FIND_PROF_CHK_VSI)
856 * @conds: additional conditions to be checked (ICE_FLOW_FIND_PROF_CHK_*)
858 static struct ice_flow_prof *
859 ice_flow_find_prof_conds(struct ice_hw *hw, enum ice_block blk,
860 enum ice_flow_dir dir, struct ice_flow_seg_info *segs,
861 u8 segs_cnt, u16 vsi_handle, u32 conds)
863 struct ice_flow_prof *p;
865 LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) {
866 if (p->dir == dir && segs_cnt && segs_cnt == p->segs_cnt) {
869 /* Check for profile-VSI association if specified */
870 if ((conds & ICE_FLOW_FIND_PROF_CHK_VSI) &&
871 ice_is_vsi_valid(hw, vsi_handle) &&
872 !ice_is_bit_set(p->vsis, vsi_handle))
875 /* Protocol headers must be checked. Matched fields are
876 * checked if specified.
878 for (i = 0; i < segs_cnt; i++)
879 if (segs[i].hdrs != p->segs[i].hdrs ||
880 ((conds & ICE_FLOW_FIND_PROF_CHK_FLDS) &&
881 segs[i].match != p->segs[i].match))
884 /* A match is found if all segments are matched */
894 * ice_flow_find_prof - Look up a profile matching headers and matched fields
895 * @hw: pointer to the HW struct
896 * @blk: classification stage
897 * @dir: flow direction
898 * @segs: array of one or more packet segments that describe the flow
899 * @segs_cnt: number of packet segments provided
902 ice_flow_find_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir,
903 struct ice_flow_seg_info *segs, u8 segs_cnt)
905 struct ice_flow_prof *p;
907 ice_acquire_lock(&hw->fl_profs_locks[blk]);
908 p = ice_flow_find_prof_conds(hw, blk, dir, segs, segs_cnt,
909 ICE_MAX_VSI, ICE_FLOW_FIND_PROF_CHK_FLDS);
910 ice_release_lock(&hw->fl_profs_locks[blk]);
912 return p ? p->id : ICE_FLOW_PROF_ID_INVAL;
916 * ice_flow_find_prof_id - Look up a profile with given profile ID
917 * @hw: pointer to the HW struct
918 * @blk: classification stage
919 * @prof_id: unique ID to identify this flow profile
921 static struct ice_flow_prof *
922 ice_flow_find_prof_id(struct ice_hw *hw, enum ice_block blk, u64 prof_id)
924 struct ice_flow_prof *p;
926 LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) {
927 if (p->id == prof_id)
935 * ice_dealloc_flow_entry - Deallocate flow entry memory
936 * @hw: pointer to the HW struct
937 * @entry: flow entry to be removed
940 ice_dealloc_flow_entry(struct ice_hw *hw, struct ice_flow_entry *entry)
946 ice_free(hw, entry->entry);
949 ice_free(hw, entry->acts);
958 * ice_flow_rem_entry_sync - Remove a flow entry
959 * @hw: pointer to the HW struct
960 * @entry: flow entry to be removed
962 static enum ice_status
963 ice_flow_rem_entry_sync(struct ice_hw *hw, struct ice_flow_entry *entry)
966 return ICE_ERR_BAD_PTR;
968 LIST_DEL(&entry->l_entry);
970 ice_dealloc_flow_entry(hw, entry);
976 * ice_flow_add_prof_sync - Add a flow profile for packet segments and fields
977 * @hw: pointer to the HW struct
978 * @blk: classification stage
979 * @dir: flow direction
980 * @prof_id: unique ID to identify this flow profile
981 * @segs: array of one or more packet segments that describe the flow
982 * @segs_cnt: number of packet segments provided
983 * @acts: array of default actions
984 * @acts_cnt: number of default actions
985 * @prof: stores the returned flow profile added
987 * Assumption: the caller has acquired the lock to the profile list
989 static enum ice_status
990 ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk,
991 enum ice_flow_dir dir, u64 prof_id,
992 struct ice_flow_seg_info *segs, u8 segs_cnt,
993 struct ice_flow_action *acts, u8 acts_cnt,
994 struct ice_flow_prof **prof)
996 struct ice_flow_prof_params params;
997 enum ice_status status = ICE_SUCCESS;
1000 if (!prof || (acts_cnt && !acts))
1001 return ICE_ERR_BAD_PTR;
1003 ice_memset(¶ms, 0, sizeof(params), ICE_NONDMA_MEM);
1004 params.prof = (struct ice_flow_prof *)
1005 ice_malloc(hw, sizeof(*params.prof));
1007 return ICE_ERR_NO_MEMORY;
1009 /* initialize extraction sequence to all invalid (0xff) */
1010 for (i = 0; i < ICE_MAX_FV_WORDS; i++) {
1011 params.es[i].prot_id = ICE_PROT_INVALID;
1012 params.es[i].off = ICE_FV_OFFSET_INVAL;
1016 params.prof->id = prof_id;
1017 params.prof->dir = dir;
1018 params.prof->segs_cnt = segs_cnt;
1020 /* Make a copy of the segments that need to be persistent in the flow
1023 for (i = 0; i < segs_cnt; i++)
1024 ice_memcpy(¶ms.prof->segs[i], &segs[i], sizeof(*segs),
1025 ICE_NONDMA_TO_NONDMA);
1027 /* Make a copy of the actions that need to be persistent in the flow
1031 params.prof->acts = (struct ice_flow_action *)
1032 ice_memdup(hw, acts, acts_cnt * sizeof(*acts),
1033 ICE_NONDMA_TO_NONDMA);
1035 if (!params.prof->acts) {
1036 status = ICE_ERR_NO_MEMORY;
1041 status = ice_flow_proc_segs(hw, ¶ms);
1043 ice_debug(hw, ICE_DBG_FLOW,
1044 "Error processing a flow's packet segments\n");
1048 /* Add a HW profile for this flow profile */
1049 status = ice_add_prof(hw, blk, prof_id, (u8 *)params.ptypes, params.es);
1051 ice_debug(hw, ICE_DBG_FLOW, "Error adding a HW flow profile\n");
1055 INIT_LIST_HEAD(¶ms.prof->entries);
1056 ice_init_lock(¶ms.prof->entries_lock);
1057 *prof = params.prof;
1061 if (params.prof->acts)
1062 ice_free(hw, params.prof->acts);
1063 ice_free(hw, params.prof);
1070 * ice_flow_rem_prof_sync - remove a flow profile
1071 * @hw: pointer to the hardware structure
1072 * @blk: classification stage
1073 * @prof: pointer to flow profile to remove
1075 * Assumption: the caller has acquired the lock to the profile list
1077 static enum ice_status
1078 ice_flow_rem_prof_sync(struct ice_hw *hw, enum ice_block blk,
1079 struct ice_flow_prof *prof)
1081 enum ice_status status = ICE_SUCCESS;
1083 /* Remove all remaining flow entries before removing the flow profile */
1084 if (!LIST_EMPTY(&prof->entries)) {
1085 struct ice_flow_entry *e, *t;
1087 ice_acquire_lock(&prof->entries_lock);
1089 LIST_FOR_EACH_ENTRY_SAFE(e, t, &prof->entries, ice_flow_entry,
1091 status = ice_flow_rem_entry_sync(hw, e);
1096 ice_release_lock(&prof->entries_lock);
1099 /* Remove all hardware profiles associated with this flow profile */
1100 status = ice_rem_prof(hw, blk, prof->id);
1102 LIST_DEL(&prof->l_entry);
1103 ice_destroy_lock(&prof->entries_lock);
1105 ice_free(hw, prof->acts);
1113 * ice_flow_assoc_prof - associate a VSI with a flow profile
1114 * @hw: pointer to the hardware structure
1115 * @blk: classification stage
1116 * @prof: pointer to flow profile
1117 * @vsi_handle: software VSI handle
1119 * Assumption: the caller has acquired the lock to the profile list
1120 * and the software VSI handle has been validated
1122 static enum ice_status
1123 ice_flow_assoc_prof(struct ice_hw *hw, enum ice_block blk,
1124 struct ice_flow_prof *prof, u16 vsi_handle)
1126 enum ice_status status = ICE_SUCCESS;
1128 if (!ice_is_bit_set(prof->vsis, vsi_handle)) {
1129 status = ice_add_prof_id_flow(hw, blk,
1130 ice_get_hw_vsi_num(hw,
1134 ice_set_bit(vsi_handle, prof->vsis);
1136 ice_debug(hw, ICE_DBG_FLOW,
1137 "HW profile add failed, %d\n",
1145 * ice_flow_disassoc_prof - disassociate a VSI from a flow profile
1146 * @hw: pointer to the hardware structure
1147 * @blk: classification stage
1148 * @prof: pointer to flow profile
1149 * @vsi_handle: software VSI handle
1151 * Assumption: the caller has acquired the lock to the profile list
1152 * and the software VSI handle has been validated
1154 static enum ice_status
1155 ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk,
1156 struct ice_flow_prof *prof, u16 vsi_handle)
1158 enum ice_status status = ICE_SUCCESS;
1160 if (ice_is_bit_set(prof->vsis, vsi_handle)) {
1161 status = ice_rem_prof_id_flow(hw, blk,
1162 ice_get_hw_vsi_num(hw,
1166 ice_clear_bit(vsi_handle, prof->vsis);
1168 ice_debug(hw, ICE_DBG_FLOW,
1169 "HW profile remove failed, %d\n",
1177 * ice_flow_add_prof - Add a flow profile for packet segments and matched fields
1178 * @hw: pointer to the HW struct
1179 * @blk: classification stage
1180 * @dir: flow direction
1181 * @prof_id: unique ID to identify this flow profile
1182 * @segs: array of one or more packet segments that describe the flow
1183 * @segs_cnt: number of packet segments provided
1184 * @acts: array of default actions
1185 * @acts_cnt: number of default actions
1186 * @prof: stores the returned flow profile added
1189 ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir,
1190 u64 prof_id, struct ice_flow_seg_info *segs, u8 segs_cnt,
1191 struct ice_flow_action *acts, u8 acts_cnt,
1192 struct ice_flow_prof **prof)
1194 enum ice_status status;
1196 if (segs_cnt > ICE_FLOW_SEG_MAX)
1197 return ICE_ERR_MAX_LIMIT;
1200 return ICE_ERR_PARAM;
1203 return ICE_ERR_BAD_PTR;
1205 status = ice_flow_val_hdrs(segs, segs_cnt);
1209 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1211 status = ice_flow_add_prof_sync(hw, blk, dir, prof_id, segs, segs_cnt,
1212 acts, acts_cnt, prof);
1214 LIST_ADD(&(*prof)->l_entry, &hw->fl_profs[blk]);
1216 ice_release_lock(&hw->fl_profs_locks[blk]);
1222 * ice_flow_rem_prof - Remove a flow profile and all entries associated with it
1223 * @hw: pointer to the HW struct
1224 * @blk: the block for which the flow profile is to be removed
1225 * @prof_id: unique ID of the flow profile to be removed
1228 ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id)
1230 struct ice_flow_prof *prof;
1231 enum ice_status status;
1233 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1235 prof = ice_flow_find_prof_id(hw, blk, prof_id);
1237 status = ICE_ERR_DOES_NOT_EXIST;
1241 /* prof becomes invalid after the call */
1242 status = ice_flow_rem_prof_sync(hw, blk, prof);
1245 ice_release_lock(&hw->fl_profs_locks[blk]);
1251 * ice_flow_get_hw_prof - return the HW profile for a specific profile ID handle
1252 * @hw: pointer to the HW struct
1253 * @blk: classification stage
1254 * @prof_id: the profile ID handle
1255 * @hw_prof_id: pointer to variable to receive the HW profile ID
1258 ice_flow_get_hw_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
1261 struct ice_prof_map *map;
1263 map = ice_search_prof_id(hw, blk, prof_id);
1265 *hw_prof_id = map->prof_id;
1269 return ICE_ERR_DOES_NOT_EXIST;
1273 * ice_flow_find_entry - look for a flow entry using its unique ID
1274 * @hw: pointer to the HW struct
1275 * @blk: classification stage
1276 * @entry_id: unique ID to identify this flow entry
1278 * This function looks for the flow entry with the specified unique ID in all
1279 * flow profiles of the specified classification stage. If the entry is found,
1280 * and it returns the handle to the flow entry. Otherwise, it returns
1281 * ICE_FLOW_ENTRY_ID_INVAL.
1283 u64 ice_flow_find_entry(struct ice_hw *hw, enum ice_block blk, u64 entry_id)
1285 struct ice_flow_entry *found = NULL;
1286 struct ice_flow_prof *p;
1288 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1290 LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) {
1291 struct ice_flow_entry *e;
1293 ice_acquire_lock(&p->entries_lock);
1294 LIST_FOR_EACH_ENTRY(e, &p->entries, ice_flow_entry, l_entry)
1295 if (e->id == entry_id) {
1299 ice_release_lock(&p->entries_lock);
1305 ice_release_lock(&hw->fl_profs_locks[blk]);
1307 return found ? ICE_FLOW_ENTRY_HNDL(found) : ICE_FLOW_ENTRY_HANDLE_INVAL;
1311 * ice_flow_add_entry - Add a flow entry
1312 * @hw: pointer to the HW struct
1313 * @blk: classification stage
1314 * @prof_id: ID of the profile to add a new flow entry to
1315 * @entry_id: unique ID to identify this flow entry
1316 * @vsi_handle: software VSI handle for the flow entry
1317 * @prio: priority of the flow entry
1318 * @data: pointer to a data buffer containing flow entry's match values/masks
1319 * @acts: arrays of actions to be performed on a match
1320 * @acts_cnt: number of actions
1321 * @entry_h: pointer to buffer that receives the new flow entry's handle
1324 ice_flow_add_entry(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
1325 u64 entry_id, u16 vsi_handle, enum ice_flow_priority prio,
1326 void *data, struct ice_flow_action *acts, u8 acts_cnt,
1329 struct ice_flow_prof *prof = NULL;
1330 struct ice_flow_entry *e = NULL;
1331 enum ice_status status = ICE_SUCCESS;
1333 if (acts_cnt && !acts)
1334 return ICE_ERR_PARAM;
1336 /* No flow entry data is expected for RSS */
1337 if (!entry_h || (!data && blk != ICE_BLK_RSS))
1338 return ICE_ERR_BAD_PTR;
1340 if (!ice_is_vsi_valid(hw, vsi_handle))
1341 return ICE_ERR_PARAM;
1343 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1345 prof = ice_flow_find_prof_id(hw, blk, prof_id);
1347 status = ICE_ERR_DOES_NOT_EXIST;
1349 /* Allocate memory for the entry being added and associate
1350 * the VSI to the found flow profile
1352 e = (struct ice_flow_entry *)ice_malloc(hw, sizeof(*e));
1354 status = ICE_ERR_NO_MEMORY;
1356 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
1359 ice_release_lock(&hw->fl_profs_locks[blk]);
1364 e->vsi_handle = vsi_handle;
1370 /* RSS will add only one entry per VSI per profile */
1377 status = ICE_ERR_NOT_IMPL;
1381 ice_acquire_lock(&prof->entries_lock);
1382 LIST_ADD(&e->l_entry, &prof->entries);
1383 ice_release_lock(&prof->entries_lock);
1385 *entry_h = ICE_FLOW_ENTRY_HNDL(e);
1390 ice_free(hw, e->entry);
1398 * ice_flow_rem_entry - Remove a flow entry
1399 * @hw: pointer to the HW struct
1400 * @entry_h: handle to the flow entry to be removed
1402 enum ice_status ice_flow_rem_entry(struct ice_hw *hw, u64 entry_h)
1404 struct ice_flow_entry *entry;
1405 struct ice_flow_prof *prof;
1406 enum ice_status status;
1408 if (entry_h == ICE_FLOW_ENTRY_HANDLE_INVAL)
1409 return ICE_ERR_PARAM;
1411 entry = ICE_FLOW_ENTRY_PTR((unsigned long)entry_h);
1413 /* Retain the pointer to the flow profile as the entry will be freed */
1416 ice_acquire_lock(&prof->entries_lock);
1417 status = ice_flow_rem_entry_sync(hw, entry);
1418 ice_release_lock(&prof->entries_lock);
1424 * ice_flow_set_fld_ext - specifies locations of field from entry's input buffer
1425 * @seg: packet segment the field being set belongs to
1426 * @fld: field to be set
1427 * @type: type of the field
1428 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
1429 * entry's input buffer
1430 * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's
1432 * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from
1433 * entry's input buffer
1435 * This helper function stores information of a field being matched, including
1436 * the type of the field and the locations of the value to match, the mask, and
1437 * and the upper-bound value in the start of the input buffer for a flow entry.
1438 * This function should only be used for fixed-size data structures.
1440 * This function also opportunistically determines the protocol headers to be
1441 * present based on the fields being set. Some fields cannot be used alone to
1442 * determine the protocol headers present. Sometimes, fields for particular
1443 * protocol headers are not matched. In those cases, the protocol headers
1444 * must be explicitly set.
1447 ice_flow_set_fld_ext(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
1448 enum ice_flow_fld_match_type type, u16 val_loc,
1449 u16 mask_loc, u16 last_loc)
1451 u64 bit = BIT_ULL(fld);
1454 if (type == ICE_FLOW_FLD_TYPE_RANGE)
1457 seg->fields[fld].type = type;
1458 seg->fields[fld].src.val = val_loc;
1459 seg->fields[fld].src.mask = mask_loc;
1460 seg->fields[fld].src.last = last_loc;
1462 ICE_FLOW_SET_HDRS(seg, ice_flds_info[fld].hdr);
1466 * ice_flow_set_fld - specifies locations of field from entry's input buffer
1467 * @seg: packet segment the field being set belongs to
1468 * @fld: field to be set
1469 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
1470 * entry's input buffer
1471 * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's
1473 * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from
1474 * entry's input buffer
1475 * @range: indicate if field being matched is to be in a range
1477 * This function specifies the locations, in the form of byte offsets from the
1478 * start of the input buffer for a flow entry, from where the value to match,
1479 * the mask value, and upper value can be extracted. These locations are then
1480 * stored in the flow profile. When adding a flow entry associated with the
1481 * flow profile, these locations will be used to quickly extract the values and
1482 * create the content of a match entry. This function should only be used for
1483 * fixed-size data structures.
1486 ice_flow_set_fld(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
1487 u16 val_loc, u16 mask_loc, u16 last_loc, bool range)
1489 enum ice_flow_fld_match_type t = range ?
1490 ICE_FLOW_FLD_TYPE_RANGE : ICE_FLOW_FLD_TYPE_REG;
1492 ice_flow_set_fld_ext(seg, fld, t, val_loc, mask_loc, last_loc);
1496 * ice_flow_set_fld_prefix - sets locations of prefix field from entry's buf
1497 * @seg: packet segment the field being set belongs to
1498 * @fld: field to be set
1499 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
1500 * entry's input buffer
1501 * @pref_loc: location of prefix value from entry's input buffer
1502 * @pref_sz: size of the location holding the prefix value
1504 * This function specifies the locations, in the form of byte offsets from the
1505 * start of the input buffer for a flow entry, from where the value to match
1506 * and the IPv4 prefix value can be extracted. These locations are then stored
1507 * in the flow profile. When adding flow entries to the associated flow profile,
1508 * these locations can be used to quickly extract the values to create the
1509 * content of a match entry. This function should only be used for fixed-size
1513 ice_flow_set_fld_prefix(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
1514 u16 val_loc, u16 pref_loc, u8 pref_sz)
1516 /* For this type of field, the "mask" location is for the prefix value's
1517 * location and the "last" location is for the size of the location of
1520 ice_flow_set_fld_ext(seg, fld, ICE_FLOW_FLD_TYPE_PREFIX, val_loc,
1521 pref_loc, (u16)pref_sz);
1525 * ice_flow_add_fld_raw - sets locations of a raw field from entry's input buf
1526 * @seg: packet segment the field being set belongs to
1527 * @off: offset of the raw field from the beginning of the segment in bytes
1528 * @len: length of the raw pattern to be matched
1529 * @val_loc: location of the value to match from entry's input buffer
1530 * @mask_loc: location of mask value from entry's input buffer
1532 * This function specifies the offset of the raw field to be match from the
1533 * beginning of the specified packet segment, and the locations, in the form of
1534 * byte offsets from the start of the input buffer for a flow entry, from where
1535 * the value to match and the mask value to be extracted. These locations are
1536 * then stored in the flow profile. When adding flow entries to the associated
1537 * flow profile, these locations can be used to quickly extract the values to
1538 * create the content of a match entry. This function should only be used for
1539 * fixed-size data structures.
1542 ice_flow_add_fld_raw(struct ice_flow_seg_info *seg, u16 off, u8 len,
1543 u16 val_loc, u16 mask_loc)
1545 if (seg->raws_cnt < ICE_FLOW_SEG_RAW_FLD_MAX) {
1546 seg->raws[seg->raws_cnt].off = off;
1547 seg->raws[seg->raws_cnt].info.type = ICE_FLOW_FLD_TYPE_SIZE;
1548 seg->raws[seg->raws_cnt].info.src.val = val_loc;
1549 seg->raws[seg->raws_cnt].info.src.mask = mask_loc;
1550 /* The "last" field is used to store the length of the field */
1551 seg->raws[seg->raws_cnt].info.src.last = len;
1554 /* Overflows of "raws" will be handled as an error condition later in
1555 * the flow when this information is processed.
1560 #define ICE_FLOW_RSS_SEG_HDR_L3_MASKS \
1561 (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6)
1563 #define ICE_FLOW_RSS_SEG_HDR_L4_MASKS \
1564 (ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | \
1565 ICE_FLOW_SEG_HDR_SCTP)
1567 #define ICE_FLOW_RSS_SEG_HDR_VAL_MASKS \
1568 (ICE_FLOW_RSS_SEG_HDR_L3_MASKS | \
1569 ICE_FLOW_RSS_SEG_HDR_L4_MASKS)
1572 * ice_flow_set_rss_seg_info - setup packet segments for RSS
1573 * @segs: pointer to the flow field segment(s)
1574 * @hash_fields: fields to be hashed on for the segment(s)
1575 * @flow_hdr: protocol header fields within a packet segment
1577 * Helper function to extract fields from hash bitmap and use flow
1578 * header value to set flow field segment for further use in flow
1579 * profile entry or removal.
1581 static enum ice_status
1582 ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u64 hash_fields,
1585 u64 val = hash_fields;
1588 for (i = 0; val && i < ICE_FLOW_FIELD_IDX_MAX; i++) {
1589 u64 bit = BIT_ULL(i);
1592 ice_flow_set_fld(segs, (enum ice_flow_field)i,
1593 ICE_FLOW_FLD_OFF_INVAL,
1594 ICE_FLOW_FLD_OFF_INVAL,
1595 ICE_FLOW_FLD_OFF_INVAL, false);
1599 ICE_FLOW_SET_HDRS(segs, flow_hdr);
1601 if (segs->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS)
1602 return ICE_ERR_PARAM;
1604 val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS);
1605 if (!ice_is_pow2(val))
1608 val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS);
1609 if (val && !ice_is_pow2(val))
1616 * ice_rem_vsi_rss_list - remove VSI from RSS list
1617 * @hw: pointer to the hardware structure
1618 * @vsi_handle: software VSI handle
1620 * Remove the VSI from all RSS configurations in the list.
1622 void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle)
1624 struct ice_rss_cfg *r, *tmp;
1626 if (LIST_EMPTY(&hw->rss_list_head))
1629 ice_acquire_lock(&hw->rss_locks);
1630 LIST_FOR_EACH_ENTRY_SAFE(r, tmp, &hw->rss_list_head,
1631 ice_rss_cfg, l_entry) {
1632 if (ice_is_bit_set(r->vsis, vsi_handle)) {
1633 ice_clear_bit(vsi_handle, r->vsis);
1635 if (!ice_is_any_bit_set(r->vsis, ICE_MAX_VSI)) {
1636 LIST_DEL(&r->l_entry);
1641 ice_release_lock(&hw->rss_locks);
1645 * ice_rem_vsi_rss_cfg - remove RSS configurations associated with VSI
1646 * @hw: pointer to the hardware structure
1647 * @vsi_handle: software VSI handle
1649 * This function will iterate through all flow profiles and disassociate
1650 * the VSI from that profile. If the flow profile has no VSIs it will
1653 enum ice_status ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle)
1655 const enum ice_block blk = ICE_BLK_RSS;
1656 struct ice_flow_prof *p, *t;
1657 enum ice_status status = ICE_SUCCESS;
1659 if (!ice_is_vsi_valid(hw, vsi_handle))
1660 return ICE_ERR_PARAM;
1662 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1663 LIST_FOR_EACH_ENTRY_SAFE(p, t, &hw->fl_profs[blk], ice_flow_prof,
1665 if (ice_is_bit_set(p->vsis, vsi_handle)) {
1666 status = ice_flow_disassoc_prof(hw, blk, p, vsi_handle);
1670 if (!ice_is_any_bit_set(p->vsis, ICE_MAX_VSI)) {
1671 status = ice_flow_rem_prof_sync(hw, blk, p);
1677 ice_release_lock(&hw->fl_profs_locks[blk]);
1683 * ice_rem_rss_list - remove RSS configuration from list
1684 * @hw: pointer to the hardware structure
1685 * @vsi_handle: software VSI handle
1686 * @prof: pointer to flow profile
1688 * Assumption: lock has already been acquired for RSS list
1691 ice_rem_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof)
1693 struct ice_rss_cfg *r, *tmp;
1695 /* Search for RSS hash fields associated to the VSI that match the
1696 * hash configurations associated to the flow profile. If found
1697 * remove from the RSS entry list of the VSI context and delete entry.
1699 LIST_FOR_EACH_ENTRY_SAFE(r, tmp, &hw->rss_list_head,
1700 ice_rss_cfg, l_entry) {
1701 if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
1702 r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
1703 ice_clear_bit(vsi_handle, r->vsis);
1704 if (!ice_is_any_bit_set(r->vsis, ICE_MAX_VSI)) {
1705 LIST_DEL(&r->l_entry);
1714 * ice_add_rss_list - add RSS configuration to list
1715 * @hw: pointer to the hardware structure
1716 * @vsi_handle: software VSI handle
1717 * @prof: pointer to flow profile
1719 * Assumption: lock has already been acquired for RSS list
1721 static enum ice_status
1722 ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof)
1724 struct ice_rss_cfg *r, *rss_cfg;
1726 LIST_FOR_EACH_ENTRY(r, &hw->rss_list_head,
1727 ice_rss_cfg, l_entry)
1728 if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
1729 r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
1730 ice_set_bit(vsi_handle, r->vsis);
1734 rss_cfg = (struct ice_rss_cfg *)ice_malloc(hw, sizeof(*rss_cfg));
1736 return ICE_ERR_NO_MEMORY;
1738 rss_cfg->hashed_flds = prof->segs[prof->segs_cnt - 1].match;
1739 rss_cfg->packet_hdr = prof->segs[prof->segs_cnt - 1].hdrs;
1740 ice_set_bit(vsi_handle, rss_cfg->vsis);
1742 LIST_ADD_TAIL(&rss_cfg->l_entry, &hw->rss_list_head);
1747 #define ICE_FLOW_PROF_HASH_S 0
1748 #define ICE_FLOW_PROF_HASH_M (0xFFFFFFFFULL << ICE_FLOW_PROF_HASH_S)
1749 #define ICE_FLOW_PROF_HDR_S 32
1750 #define ICE_FLOW_PROF_HDR_M (0xFFFFFFFFULL << ICE_FLOW_PROF_HDR_S)
1752 #define ICE_FLOW_GEN_PROFID(hash, hdr) \
1753 (u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \
1754 (((u64)(hdr) << ICE_FLOW_PROF_HDR_S) & ICE_FLOW_PROF_HDR_M))
1757 * ice_add_rss_cfg_sync - add an RSS configuration
1758 * @hw: pointer to the hardware structure
1759 * @vsi_handle: software VSI handle
1760 * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure
1761 * @addl_hdrs: protocol header fields
1763 * Assumption: lock has already been acquired for RSS list
1765 static enum ice_status
1766 ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
1769 const enum ice_block blk = ICE_BLK_RSS;
1770 struct ice_flow_prof *prof = NULL;
1771 struct ice_flow_seg_info *segs;
1772 enum ice_status status = ICE_SUCCESS;
1774 segs = (struct ice_flow_seg_info *)ice_malloc(hw, sizeof(*segs));
1776 return ICE_ERR_NO_MEMORY;
1778 /* Construct the packet segment info from the hashed fields */
1779 status = ice_flow_set_rss_seg_info(segs, hashed_flds, addl_hdrs);
1783 /* Search for a flow profile that has matching headers, hash fields
1784 * and has the input VSI associated to it. If found, no further
1785 * operations required and exit.
1787 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, 1,
1789 ICE_FLOW_FIND_PROF_CHK_FLDS |
1790 ICE_FLOW_FIND_PROF_CHK_VSI);
1794 /* Check if a flow profile exists with the same protocol headers and
1795 * associated with the input VSI. If so disasscociate the VSI from
1796 * this profile. The VSI will be added to a new profile created with
1797 * the protocol header and new hash field configuration.
1799 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, 1,
1800 vsi_handle, ICE_FLOW_FIND_PROF_CHK_VSI);
1802 status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle);
1804 ice_rem_rss_list(hw, vsi_handle, prof);
1808 /* Remove profile if it has no VSIs associated */
1809 if (!ice_is_any_bit_set(prof->vsis, ICE_MAX_VSI)) {
1810 status = ice_flow_rem_prof_sync(hw, blk, prof);
1816 /* Search for a profile that has same match fields only. If this
1817 * exists then associate the VSI to this profile.
1819 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, 1,
1821 ICE_FLOW_FIND_PROF_CHK_FLDS);
1823 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
1825 status = ice_add_rss_list(hw, vsi_handle, prof);
1829 /* Create a new flow profile with generated profile and packet
1830 * segment information.
1832 status = ice_flow_add_prof(hw, blk, ICE_FLOW_RX,
1833 ICE_FLOW_GEN_PROFID(hashed_flds, segs->hdrs),
1834 segs, 1, NULL, 0, &prof);
1838 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
1839 /* If association to a new flow profile failed then this profile can
1843 ice_flow_rem_prof_sync(hw, blk, prof);
1847 status = ice_add_rss_list(hw, vsi_handle, prof);
1855 * ice_add_rss_cfg - add an RSS configuration with specified hashed fields
1856 * @hw: pointer to the hardware structure
1857 * @vsi_handle: software VSI handle
1858 * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure
1859 * @addl_hdrs: protocol header fields
1861 * This function will generate a flow profile based on fields associated with
1862 * the input fields to hash on, the flow type and use the VSI number to add
1863 * a flow entry to the profile.
1866 ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
1869 enum ice_status status;
1871 if (hashed_flds == ICE_HASH_INVALID ||
1872 !ice_is_vsi_valid(hw, vsi_handle))
1873 return ICE_ERR_PARAM;
1875 ice_acquire_lock(&hw->rss_locks);
1876 status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs);
1877 ice_release_lock(&hw->rss_locks);
1883 * ice_rem_rss_cfg_sync - remove an existing RSS configuration
1884 * @hw: pointer to the hardware structure
1885 * @vsi_handle: software VSI handle
1886 * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove
1887 * @addl_hdrs: Protocol header fields within a packet segment
1889 * Assumption: lock has already been acquired for RSS list
1891 static enum ice_status
1892 ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
1895 const enum ice_block blk = ICE_BLK_RSS;
1896 struct ice_flow_seg_info *segs;
1897 struct ice_flow_prof *prof;
1898 enum ice_status status;
1900 segs = (struct ice_flow_seg_info *)ice_malloc(hw, sizeof(*segs));
1902 return ICE_ERR_NO_MEMORY;
1904 /* Construct the packet segment info from the hashed fields */
1905 status = ice_flow_set_rss_seg_info(segs, hashed_flds, addl_hdrs);
1909 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, 1,
1911 ICE_FLOW_FIND_PROF_CHK_FLDS);
1913 status = ICE_ERR_DOES_NOT_EXIST;
1917 status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle);
1921 /* Remove RSS configuration from VSI context before deleting
1924 ice_rem_rss_list(hw, vsi_handle, prof);
1926 if (!ice_is_any_bit_set(prof->vsis, ICE_MAX_VSI))
1927 status = ice_flow_rem_prof_sync(hw, blk, prof);
1934 /* Mapping of AVF hash bit fields to an L3-L4 hash combination.
1935 * As the ice_flow_avf_hdr_field represent individual bit shifts in a hash,
1936 * convert its values to their appropriate flow L3, L4 values.
1938 #define ICE_FLOW_AVF_RSS_IPV4_MASKS \
1939 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_OTHER) | \
1940 BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV4))
1941 #define ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS \
1942 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK) | \
1943 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP))
1944 #define ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS \
1945 (BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP) | \
1946 BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP) | \
1947 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_UDP))
1948 #define ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS \
1949 (ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS | \
1950 ICE_FLOW_AVF_RSS_IPV4_MASKS | BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP))
1952 #define ICE_FLOW_AVF_RSS_IPV6_MASKS \
1953 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_OTHER) | \
1954 BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV6))
1955 #define ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS \
1956 (BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP) | \
1957 BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP) | \
1958 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_UDP))
1959 #define ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS \
1960 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK) | \
1961 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP))
1962 #define ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS \
1963 (ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS | \
1964 ICE_FLOW_AVF_RSS_IPV6_MASKS | BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP))
1966 #define ICE_FLOW_MAX_CFG 10
1969 * ice_add_avf_rss_cfg - add an RSS configuration for AVF driver
1970 * @hw: pointer to the hardware structure
1971 * @vsi_handle: software VSI handle
1972 * @avf_hash: hash bit fields (ICE_AVF_FLOW_FIELD_*) to configure
1974 * This function will take the hash bitmap provided by the AVF driver via a
1975 * message, convert it to ICE-compatible values, and configure RSS flow
1979 ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 avf_hash)
1981 enum ice_status status = ICE_SUCCESS;
1984 if (avf_hash == ICE_AVF_FLOW_FIELD_INVALID ||
1985 !ice_is_vsi_valid(hw, vsi_handle))
1986 return ICE_ERR_PARAM;
1988 /* Make sure no unsupported bits are specified */
1989 if (avf_hash & ~(ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS |
1990 ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS))
1993 hash_flds = avf_hash;
1995 /* Always create an L3 RSS configuration for any L4 RSS configuration */
1996 if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS)
1997 hash_flds |= ICE_FLOW_AVF_RSS_IPV4_MASKS;
1999 if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS)
2000 hash_flds |= ICE_FLOW_AVF_RSS_IPV6_MASKS;
2002 /* Create the corresponding RSS configuration for each valid hash bit */
2004 u64 rss_hash = ICE_HASH_INVALID;
2006 if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS) {
2007 if (hash_flds & ICE_FLOW_AVF_RSS_IPV4_MASKS) {
2008 rss_hash = ICE_FLOW_HASH_IPV4;
2009 hash_flds &= ~ICE_FLOW_AVF_RSS_IPV4_MASKS;
2010 } else if (hash_flds &
2011 ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS) {
2012 rss_hash = ICE_FLOW_HASH_IPV4 |
2013 ICE_FLOW_HASH_TCP_PORT;
2014 hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS;
2015 } else if (hash_flds &
2016 ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS) {
2017 rss_hash = ICE_FLOW_HASH_IPV4 |
2018 ICE_FLOW_HASH_UDP_PORT;
2019 hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS;
2020 } else if (hash_flds &
2021 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP)) {
2022 rss_hash = ICE_FLOW_HASH_IPV4 |
2023 ICE_FLOW_HASH_SCTP_PORT;
2025 ~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP);
2027 } else if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS) {
2028 if (hash_flds & ICE_FLOW_AVF_RSS_IPV6_MASKS) {
2029 rss_hash = ICE_FLOW_HASH_IPV6;
2030 hash_flds &= ~ICE_FLOW_AVF_RSS_IPV6_MASKS;
2031 } else if (hash_flds &
2032 ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS) {
2033 rss_hash = ICE_FLOW_HASH_IPV6 |
2034 ICE_FLOW_HASH_TCP_PORT;
2035 hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS;
2036 } else if (hash_flds &
2037 ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS) {
2038 rss_hash = ICE_FLOW_HASH_IPV6 |
2039 ICE_FLOW_HASH_UDP_PORT;
2040 hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS;
2041 } else if (hash_flds &
2042 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP)) {
2043 rss_hash = ICE_FLOW_HASH_IPV6 |
2044 ICE_FLOW_HASH_SCTP_PORT;
2046 ~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP);
2050 if (rss_hash == ICE_HASH_INVALID)
2051 return ICE_ERR_OUT_OF_RANGE;
2053 status = ice_add_rss_cfg(hw, vsi_handle, rss_hash,
2054 ICE_FLOW_SEG_HDR_NONE);
2063 * ice_rem_rss_cfg - remove an existing RSS config with matching hashed fields
2064 * @hw: pointer to the hardware structure
2065 * @vsi_handle: software VSI handle
2066 * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove
2067 * @addl_hdrs: Protocol header fields within a packet segment
2069 * This function will lookup the flow profile based on the input
2070 * hash field bitmap, iterate through the profile entry list of
2071 * that profile and find entry associated with input VSI to be
2072 * removed. Calls are made to underlying flow apis which will in
2073 * turn build or update buffers for RSS XLT1 section.
2076 ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
2079 enum ice_status status;
2081 if (hashed_flds == ICE_HASH_INVALID ||
2082 !ice_is_vsi_valid(hw, vsi_handle))
2083 return ICE_ERR_PARAM;
2085 ice_acquire_lock(&hw->rss_locks);
2086 status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs);
2087 ice_release_lock(&hw->rss_locks);
2093 * ice_replay_rss_cfg - replay RSS configurations associated with VSI
2094 * @hw: pointer to the hardware structure
2095 * @vsi_handle: software VSI handle
2097 enum ice_status ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle)
2099 enum ice_status status = ICE_SUCCESS;
2100 struct ice_rss_cfg *r;
2102 if (!ice_is_vsi_valid(hw, vsi_handle))
2103 return ICE_ERR_PARAM;
2105 ice_acquire_lock(&hw->rss_locks);
2106 LIST_FOR_EACH_ENTRY(r, &hw->rss_list_head,
2107 ice_rss_cfg, l_entry) {
2108 if (ice_is_bit_set(r->vsis, vsi_handle)) {
2109 status = ice_add_rss_cfg_sync(hw, vsi_handle,
2116 ice_release_lock(&hw->rss_locks);
2122 * ice_get_rss_cfg - returns hashed fields for the given header types
2123 * @hw: pointer to the hardware structure
2124 * @vsi_handle: software VSI handle
2125 * @hdrs: protocol header type
2127 * This function will return the match fields of the first instance of flow
2128 * profile having the given header types and containing input VSI
2130 u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs)
2132 struct ice_rss_cfg *r, *rss_cfg = NULL;
2134 /* verify if the protocol header is non zero and VSI is valid */
2135 if (hdrs == ICE_FLOW_SEG_HDR_NONE || !ice_is_vsi_valid(hw, vsi_handle))
2136 return ICE_HASH_INVALID;
2138 ice_acquire_lock(&hw->rss_locks);
2139 LIST_FOR_EACH_ENTRY(r, &hw->rss_list_head,
2140 ice_rss_cfg, l_entry)
2141 if (ice_is_bit_set(r->vsis, vsi_handle) &&
2142 r->packet_hdr == hdrs) {
2146 ice_release_lock(&hw->rss_locks);
2148 return rss_cfg ? rss_cfg->hashed_flds : ICE_HASH_INVALID;