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_flow_rem_entry_sync - Remove a flow entry
936 * @hw: pointer to the HW struct
937 * @entry: flow entry to be removed
939 static enum ice_status
940 ice_flow_rem_entry_sync(struct ice_hw *hw, struct ice_flow_entry *entry)
943 return ICE_ERR_BAD_PTR;
945 LIST_DEL(&entry->l_entry);
948 ice_free(hw, entry->entry);
951 ice_free(hw, entry->acts);
962 * ice_flow_add_prof_sync - Add a flow profile for packet segments and fields
963 * @hw: pointer to the HW struct
964 * @blk: classification stage
965 * @dir: flow direction
966 * @prof_id: unique ID to identify this flow profile
967 * @segs: array of one or more packet segments that describe the flow
968 * @segs_cnt: number of packet segments provided
969 * @acts: array of default actions
970 * @acts_cnt: number of default actions
971 * @prof: stores the returned flow profile added
973 * Assumption: the caller has acquired the lock to the profile list
975 static enum ice_status
976 ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk,
977 enum ice_flow_dir dir, u64 prof_id,
978 struct ice_flow_seg_info *segs, u8 segs_cnt,
979 struct ice_flow_action *acts, u8 acts_cnt,
980 struct ice_flow_prof **prof)
982 struct ice_flow_prof_params params;
983 enum ice_status status = ICE_SUCCESS;
986 if (!prof || (acts_cnt && !acts))
987 return ICE_ERR_BAD_PTR;
989 ice_memset(¶ms, 0, sizeof(params), ICE_NONDMA_MEM);
990 params.prof = (struct ice_flow_prof *)
991 ice_malloc(hw, sizeof(*params.prof));
993 return ICE_ERR_NO_MEMORY;
995 /* initialize extraction sequence to all invalid (0xff) */
996 for (i = 0; i < ICE_MAX_FV_WORDS; i++) {
997 params.es[i].prot_id = ICE_PROT_INVALID;
998 params.es[i].off = ICE_FV_OFFSET_INVAL;
1002 params.prof->id = prof_id;
1003 params.prof->dir = dir;
1004 params.prof->segs_cnt = segs_cnt;
1006 /* Make a copy of the segments that need to be persistent in the flow
1009 for (i = 0; i < segs_cnt; i++)
1010 ice_memcpy(¶ms.prof->segs[i], &segs[i], sizeof(*segs),
1011 ICE_NONDMA_TO_NONDMA);
1013 /* Make a copy of the actions that need to be persistent in the flow
1017 params.prof->acts = (struct ice_flow_action *)
1018 ice_memdup(hw, acts, acts_cnt * sizeof(*acts),
1019 ICE_NONDMA_TO_NONDMA);
1021 if (!params.prof->acts) {
1022 status = ICE_ERR_NO_MEMORY;
1027 status = ice_flow_proc_segs(hw, ¶ms);
1029 ice_debug(hw, ICE_DBG_FLOW,
1030 "Error processing a flow's packet segments\n");
1034 /* Add a HW profile for this flow profile */
1035 status = ice_add_prof(hw, blk, prof_id, (u8 *)params.ptypes, params.es);
1037 ice_debug(hw, ICE_DBG_FLOW, "Error adding a HW flow profile\n");
1041 INIT_LIST_HEAD(¶ms.prof->entries);
1042 ice_init_lock(¶ms.prof->entries_lock);
1043 *prof = params.prof;
1047 if (params.prof->acts)
1048 ice_free(hw, params.prof->acts);
1049 ice_free(hw, params.prof);
1056 * ice_flow_rem_prof_sync - remove a flow profile
1057 * @hw: pointer to the hardware structure
1058 * @blk: classification stage
1059 * @prof: pointer to flow profile to remove
1061 * Assumption: the caller has acquired the lock to the profile list
1063 static enum ice_status
1064 ice_flow_rem_prof_sync(struct ice_hw *hw, enum ice_block blk,
1065 struct ice_flow_prof *prof)
1067 enum ice_status status = ICE_SUCCESS;
1069 /* Remove all remaining flow entries before removing the flow profile */
1070 if (!LIST_EMPTY(&prof->entries)) {
1071 struct ice_flow_entry *e, *t;
1073 ice_acquire_lock(&prof->entries_lock);
1075 LIST_FOR_EACH_ENTRY_SAFE(e, t, &prof->entries, ice_flow_entry,
1077 status = ice_flow_rem_entry_sync(hw, e);
1082 ice_release_lock(&prof->entries_lock);
1085 /* Remove all hardware profiles associated with this flow profile */
1086 status = ice_rem_prof(hw, blk, prof->id);
1088 LIST_DEL(&prof->l_entry);
1089 ice_destroy_lock(&prof->entries_lock);
1091 ice_free(hw, prof->acts);
1099 * ice_flow_assoc_prof - associate a VSI with a flow profile
1100 * @hw: pointer to the hardware structure
1101 * @blk: classification stage
1102 * @prof: pointer to flow profile
1103 * @vsi_handle: software VSI handle
1105 * Assumption: the caller has acquired the lock to the profile list
1106 * and the software VSI handle has been validated
1108 static enum ice_status
1109 ice_flow_assoc_prof(struct ice_hw *hw, enum ice_block blk,
1110 struct ice_flow_prof *prof, u16 vsi_handle)
1112 enum ice_status status = ICE_SUCCESS;
1114 if (!ice_is_bit_set(prof->vsis, vsi_handle)) {
1115 status = ice_add_prof_id_flow(hw, blk,
1116 ice_get_hw_vsi_num(hw,
1120 ice_set_bit(vsi_handle, prof->vsis);
1122 ice_debug(hw, ICE_DBG_FLOW,
1123 "HW profile add failed, %d\n",
1131 * ice_flow_disassoc_prof - disassociate a VSI from a flow profile
1132 * @hw: pointer to the hardware structure
1133 * @blk: classification stage
1134 * @prof: pointer to flow profile
1135 * @vsi_handle: software VSI handle
1137 * Assumption: the caller has acquired the lock to the profile list
1138 * and the software VSI handle has been validated
1140 static enum ice_status
1141 ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk,
1142 struct ice_flow_prof *prof, u16 vsi_handle)
1144 enum ice_status status = ICE_SUCCESS;
1146 if (ice_is_bit_set(prof->vsis, vsi_handle)) {
1147 status = ice_rem_prof_id_flow(hw, blk,
1148 ice_get_hw_vsi_num(hw,
1152 ice_clear_bit(vsi_handle, prof->vsis);
1154 ice_debug(hw, ICE_DBG_FLOW,
1155 "HW profile remove failed, %d\n",
1163 * ice_flow_add_prof - Add a flow profile for packet segments and matched fields
1164 * @hw: pointer to the HW struct
1165 * @blk: classification stage
1166 * @dir: flow direction
1167 * @prof_id: unique ID to identify this flow profile
1168 * @segs: array of one or more packet segments that describe the flow
1169 * @segs_cnt: number of packet segments provided
1170 * @acts: array of default actions
1171 * @acts_cnt: number of default actions
1172 * @prof: stores the returned flow profile added
1175 ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir,
1176 u64 prof_id, struct ice_flow_seg_info *segs, u8 segs_cnt,
1177 struct ice_flow_action *acts, u8 acts_cnt,
1178 struct ice_flow_prof **prof)
1180 enum ice_status status;
1182 if (segs_cnt > ICE_FLOW_SEG_MAX)
1183 return ICE_ERR_MAX_LIMIT;
1186 return ICE_ERR_PARAM;
1189 return ICE_ERR_BAD_PTR;
1191 status = ice_flow_val_hdrs(segs, segs_cnt);
1195 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1197 status = ice_flow_add_prof_sync(hw, blk, dir, prof_id, segs, segs_cnt,
1198 acts, acts_cnt, prof);
1200 LIST_ADD(&(*prof)->l_entry, &hw->fl_profs[blk]);
1202 ice_release_lock(&hw->fl_profs_locks[blk]);
1208 * ice_flow_rem_prof - Remove a flow profile and all entries associated with it
1209 * @hw: pointer to the HW struct
1210 * @blk: the block for which the flow profile is to be removed
1211 * @prof_id: unique ID of the flow profile to be removed
1214 ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id)
1216 struct ice_flow_prof *prof;
1217 enum ice_status status;
1219 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1221 prof = ice_flow_find_prof_id(hw, blk, prof_id);
1223 status = ICE_ERR_DOES_NOT_EXIST;
1227 /* prof becomes invalid after the call */
1228 status = ice_flow_rem_prof_sync(hw, blk, prof);
1231 ice_release_lock(&hw->fl_profs_locks[blk]);
1237 * ice_flow_get_hw_prof - return the HW profile for a specific profile ID handle
1238 * @hw: pointer to the HW struct
1239 * @blk: classification stage
1240 * @prof_id: the profile ID handle
1241 * @hw_prof_id: pointer to variable to receive the HW profile ID
1244 ice_flow_get_hw_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
1247 struct ice_prof_map *map;
1249 map = ice_search_prof_id(hw, blk, prof_id);
1251 *hw_prof_id = map->prof_id;
1255 return ICE_ERR_DOES_NOT_EXIST;
1259 * ice_flow_find_entry - look for a flow entry using its unique ID
1260 * @hw: pointer to the HW struct
1261 * @blk: classification stage
1262 * @entry_id: unique ID to identify this flow entry
1264 * This function looks for the flow entry with the specified unique ID in all
1265 * flow profiles of the specified classification stage. If the entry is found,
1266 * and it returns the handle to the flow entry. Otherwise, it returns
1267 * ICE_FLOW_ENTRY_ID_INVAL.
1269 u64 ice_flow_find_entry(struct ice_hw *hw, enum ice_block blk, u64 entry_id)
1271 struct ice_flow_entry *found = NULL;
1272 struct ice_flow_prof *p;
1274 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1276 LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) {
1277 struct ice_flow_entry *e;
1279 ice_acquire_lock(&p->entries_lock);
1280 LIST_FOR_EACH_ENTRY(e, &p->entries, ice_flow_entry, l_entry)
1281 if (e->id == entry_id) {
1285 ice_release_lock(&p->entries_lock);
1291 ice_release_lock(&hw->fl_profs_locks[blk]);
1293 return found ? ICE_FLOW_ENTRY_HNDL(found) : ICE_FLOW_ENTRY_HANDLE_INVAL;
1297 * ice_flow_add_entry - Add a flow entry
1298 * @hw: pointer to the HW struct
1299 * @blk: classification stage
1300 * @prof_id: ID of the profile to add a new flow entry to
1301 * @entry_id: unique ID to identify this flow entry
1302 * @vsi_handle: software VSI handle for the flow entry
1303 * @prio: priority of the flow entry
1304 * @data: pointer to a data buffer containing flow entry's match values/masks
1305 * @acts: arrays of actions to be performed on a match
1306 * @acts_cnt: number of actions
1307 * @entry_h: pointer to buffer that receives the new flow entry's handle
1310 ice_flow_add_entry(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
1311 u64 entry_id, u16 vsi_handle, enum ice_flow_priority prio,
1312 void *data, struct ice_flow_action *acts, u8 acts_cnt,
1315 struct ice_flow_prof *prof = NULL;
1316 struct ice_flow_entry *e = NULL;
1317 enum ice_status status = ICE_SUCCESS;
1319 if (acts_cnt && !acts)
1320 return ICE_ERR_PARAM;
1322 /* No flow entry data is expected for RSS */
1323 if (!entry_h || (!data && blk != ICE_BLK_RSS))
1324 return ICE_ERR_BAD_PTR;
1326 if (!ice_is_vsi_valid(hw, vsi_handle))
1327 return ICE_ERR_PARAM;
1329 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1331 prof = ice_flow_find_prof_id(hw, blk, prof_id);
1333 status = ICE_ERR_DOES_NOT_EXIST;
1335 /* Allocate memory for the entry being added and associate
1336 * the VSI to the found flow profile
1338 e = (struct ice_flow_entry *)ice_malloc(hw, sizeof(*e));
1340 status = ICE_ERR_NO_MEMORY;
1342 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
1345 ice_release_lock(&hw->fl_profs_locks[blk]);
1350 e->vsi_handle = vsi_handle;
1356 /* RSS will add only one entry per VSI per profile */
1363 status = ICE_ERR_NOT_IMPL;
1367 ice_acquire_lock(&prof->entries_lock);
1368 LIST_ADD(&e->l_entry, &prof->entries);
1369 ice_release_lock(&prof->entries_lock);
1371 *entry_h = ICE_FLOW_ENTRY_HNDL(e);
1376 ice_free(hw, e->entry);
1384 * ice_flow_rem_entry - Remove a flow entry
1385 * @hw: pointer to the HW struct
1386 * @entry_h: handle to the flow entry to be removed
1388 enum ice_status ice_flow_rem_entry(struct ice_hw *hw, u64 entry_h)
1390 struct ice_flow_entry *entry;
1391 struct ice_flow_prof *prof;
1392 enum ice_status status;
1394 if (entry_h == ICE_FLOW_ENTRY_HANDLE_INVAL)
1395 return ICE_ERR_PARAM;
1397 entry = ICE_FLOW_ENTRY_PTR((unsigned long)entry_h);
1399 /* Retain the pointer to the flow profile as the entry will be freed */
1402 ice_acquire_lock(&prof->entries_lock);
1403 status = ice_flow_rem_entry_sync(hw, entry);
1404 ice_release_lock(&prof->entries_lock);
1410 * ice_flow_set_fld_ext - specifies locations of field from entry's input buffer
1411 * @seg: packet segment the field being set belongs to
1412 * @fld: field to be set
1413 * @type: type of the field
1414 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
1415 * entry's input buffer
1416 * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's
1418 * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from
1419 * entry's input buffer
1421 * This helper function stores information of a field being matched, including
1422 * the type of the field and the locations of the value to match, the mask, and
1423 * and the upper-bound value in the start of the input buffer for a flow entry.
1424 * This function should only be used for fixed-size data structures.
1426 * This function also opportunistically determines the protocol headers to be
1427 * present based on the fields being set. Some fields cannot be used alone to
1428 * determine the protocol headers present. Sometimes, fields for particular
1429 * protocol headers are not matched. In those cases, the protocol headers
1430 * must be explicitly set.
1433 ice_flow_set_fld_ext(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
1434 enum ice_flow_fld_match_type type, u16 val_loc,
1435 u16 mask_loc, u16 last_loc)
1437 u64 bit = BIT_ULL(fld);
1440 if (type == ICE_FLOW_FLD_TYPE_RANGE)
1443 seg->fields[fld].type = type;
1444 seg->fields[fld].src.val = val_loc;
1445 seg->fields[fld].src.mask = mask_loc;
1446 seg->fields[fld].src.last = last_loc;
1448 ICE_FLOW_SET_HDRS(seg, ice_flds_info[fld].hdr);
1452 * ice_flow_set_fld - specifies locations of field from entry's input buffer
1453 * @seg: packet segment the field being set belongs to
1454 * @fld: field to be set
1455 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
1456 * entry's input buffer
1457 * @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's
1459 * @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from
1460 * entry's input buffer
1461 * @range: indicate if field being matched is to be in a range
1463 * This function specifies the locations, in the form of byte offsets from the
1464 * start of the input buffer for a flow entry, from where the value to match,
1465 * the mask value, and upper value can be extracted. These locations are then
1466 * stored in the flow profile. When adding a flow entry associated with the
1467 * flow profile, these locations will be used to quickly extract the values and
1468 * create the content of a match entry. This function should only be used for
1469 * fixed-size data structures.
1472 ice_flow_set_fld(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
1473 u16 val_loc, u16 mask_loc, u16 last_loc, bool range)
1475 enum ice_flow_fld_match_type t = range ?
1476 ICE_FLOW_FLD_TYPE_RANGE : ICE_FLOW_FLD_TYPE_REG;
1478 ice_flow_set_fld_ext(seg, fld, t, val_loc, mask_loc, last_loc);
1482 * ice_flow_set_fld_prefix - sets locations of prefix field from entry's buf
1483 * @seg: packet segment the field being set belongs to
1484 * @fld: field to be set
1485 * @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
1486 * entry's input buffer
1487 * @pref_loc: location of prefix value from entry's input buffer
1488 * @pref_sz: size of the location holding the prefix value
1490 * This function specifies the locations, in the form of byte offsets from the
1491 * start of the input buffer for a flow entry, from where the value to match
1492 * and the IPv4 prefix value can be extracted. These locations are then stored
1493 * in the flow profile. When adding flow entries to the associated flow profile,
1494 * these locations can be used to quickly extract the values to create the
1495 * content of a match entry. This function should only be used for fixed-size
1499 ice_flow_set_fld_prefix(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
1500 u16 val_loc, u16 pref_loc, u8 pref_sz)
1502 /* For this type of field, the "mask" location is for the prefix value's
1503 * location and the "last" location is for the size of the location of
1506 ice_flow_set_fld_ext(seg, fld, ICE_FLOW_FLD_TYPE_PREFIX, val_loc,
1507 pref_loc, (u16)pref_sz);
1511 * ice_flow_add_fld_raw - sets locations of a raw field from entry's input buf
1512 * @seg: packet segment the field being set belongs to
1513 * @off: offset of the raw field from the beginning of the segment in bytes
1514 * @len: length of the raw pattern to be matched
1515 * @val_loc: location of the value to match from entry's input buffer
1516 * @mask_loc: location of mask value from entry's input buffer
1518 * This function specifies the offset of the raw field to be match from the
1519 * beginning of the specified packet segment, and the locations, in the form of
1520 * byte offsets from the start of the input buffer for a flow entry, from where
1521 * the value to match and the mask value to be extracted. These locations are
1522 * then stored in the flow profile. When adding flow entries to the associated
1523 * flow profile, these locations can be used to quickly extract the values to
1524 * create the content of a match entry. This function should only be used for
1525 * fixed-size data structures.
1528 ice_flow_add_fld_raw(struct ice_flow_seg_info *seg, u16 off, u8 len,
1529 u16 val_loc, u16 mask_loc)
1531 if (seg->raws_cnt < ICE_FLOW_SEG_RAW_FLD_MAX) {
1532 seg->raws[seg->raws_cnt].off = off;
1533 seg->raws[seg->raws_cnt].info.type = ICE_FLOW_FLD_TYPE_SIZE;
1534 seg->raws[seg->raws_cnt].info.src.val = val_loc;
1535 seg->raws[seg->raws_cnt].info.src.mask = mask_loc;
1536 /* The "last" field is used to store the length of the field */
1537 seg->raws[seg->raws_cnt].info.src.last = len;
1540 /* Overflows of "raws" will be handled as an error condition later in
1541 * the flow when this information is processed.
1546 #define ICE_FLOW_RSS_SEG_HDR_L3_MASKS \
1547 (ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6)
1549 #define ICE_FLOW_RSS_SEG_HDR_L4_MASKS \
1550 (ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | \
1551 ICE_FLOW_SEG_HDR_SCTP)
1553 #define ICE_FLOW_RSS_SEG_HDR_VAL_MASKS \
1554 (ICE_FLOW_RSS_SEG_HDR_L3_MASKS | \
1555 ICE_FLOW_RSS_SEG_HDR_L4_MASKS)
1558 * ice_flow_set_rss_seg_info - setup packet segments for RSS
1559 * @segs: pointer to the flow field segment(s)
1560 * @hash_fields: fields to be hashed on for the segment(s)
1561 * @flow_hdr: protocol header fields within a packet segment
1563 * Helper function to extract fields from hash bitmap and use flow
1564 * header value to set flow field segment for further use in flow
1565 * profile entry or removal.
1567 static enum ice_status
1568 ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u64 hash_fields,
1571 u64 val = hash_fields;
1574 for (i = 0; val && i < ICE_FLOW_FIELD_IDX_MAX; i++) {
1575 u64 bit = BIT_ULL(i);
1578 ice_flow_set_fld(segs, (enum ice_flow_field)i,
1579 ICE_FLOW_FLD_OFF_INVAL,
1580 ICE_FLOW_FLD_OFF_INVAL,
1581 ICE_FLOW_FLD_OFF_INVAL, false);
1585 ICE_FLOW_SET_HDRS(segs, flow_hdr);
1587 if (segs->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS)
1588 return ICE_ERR_PARAM;
1590 val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS);
1591 if (!ice_is_pow2(val))
1594 val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS);
1595 if (val && !ice_is_pow2(val))
1602 * ice_rem_vsi_rss_list - remove VSI from RSS list
1603 * @hw: pointer to the hardware structure
1604 * @vsi_handle: software VSI handle
1606 * Remove the VSI from all RSS configurations in the list.
1608 void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle)
1610 struct ice_rss_cfg *r, *tmp;
1612 if (LIST_EMPTY(&hw->rss_list_head))
1615 ice_acquire_lock(&hw->rss_locks);
1616 LIST_FOR_EACH_ENTRY_SAFE(r, tmp, &hw->rss_list_head,
1617 ice_rss_cfg, l_entry) {
1618 if (ice_is_bit_set(r->vsis, vsi_handle)) {
1619 ice_clear_bit(vsi_handle, r->vsis);
1621 if (!ice_is_any_bit_set(r->vsis, ICE_MAX_VSI)) {
1622 LIST_DEL(&r->l_entry);
1627 ice_release_lock(&hw->rss_locks);
1631 * ice_rem_vsi_rss_cfg - remove RSS configurations associated with VSI
1632 * @hw: pointer to the hardware structure
1633 * @vsi_handle: software VSI handle
1635 * This function will iterate through all flow profiles and disassociate
1636 * the VSI from that profile. If the flow profile has no VSIs it will
1639 enum ice_status ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle)
1641 const enum ice_block blk = ICE_BLK_RSS;
1642 struct ice_flow_prof *p, *t;
1643 enum ice_status status = ICE_SUCCESS;
1645 if (!ice_is_vsi_valid(hw, vsi_handle))
1646 return ICE_ERR_PARAM;
1648 ice_acquire_lock(&hw->fl_profs_locks[blk]);
1649 LIST_FOR_EACH_ENTRY_SAFE(p, t, &hw->fl_profs[blk], ice_flow_prof,
1651 if (ice_is_bit_set(p->vsis, vsi_handle)) {
1652 status = ice_flow_disassoc_prof(hw, blk, p, vsi_handle);
1656 if (!ice_is_any_bit_set(p->vsis, ICE_MAX_VSI)) {
1657 status = ice_flow_rem_prof_sync(hw, blk, p);
1663 ice_release_lock(&hw->fl_profs_locks[blk]);
1669 * ice_rem_rss_list - remove RSS configuration from list
1670 * @hw: pointer to the hardware structure
1671 * @vsi_handle: software VSI handle
1672 * @prof: pointer to flow profile
1674 * Assumption: lock has already been acquired for RSS list
1677 ice_rem_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof)
1679 struct ice_rss_cfg *r, *tmp;
1681 /* Search for RSS hash fields associated to the VSI that match the
1682 * hash configurations associated to the flow profile. If found
1683 * remove from the RSS entry list of the VSI context and delete entry.
1685 LIST_FOR_EACH_ENTRY_SAFE(r, tmp, &hw->rss_list_head,
1686 ice_rss_cfg, l_entry) {
1687 if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
1688 r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
1689 ice_clear_bit(vsi_handle, r->vsis);
1690 if (!ice_is_any_bit_set(r->vsis, ICE_MAX_VSI)) {
1691 LIST_DEL(&r->l_entry);
1700 * ice_add_rss_list - add RSS configuration to list
1701 * @hw: pointer to the hardware structure
1702 * @vsi_handle: software VSI handle
1703 * @prof: pointer to flow profile
1705 * Assumption: lock has already been acquired for RSS list
1707 static enum ice_status
1708 ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof)
1710 struct ice_rss_cfg *r, *rss_cfg;
1712 LIST_FOR_EACH_ENTRY(r, &hw->rss_list_head,
1713 ice_rss_cfg, l_entry)
1714 if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
1715 r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
1716 ice_set_bit(vsi_handle, r->vsis);
1720 rss_cfg = (struct ice_rss_cfg *)ice_malloc(hw, sizeof(*rss_cfg));
1722 return ICE_ERR_NO_MEMORY;
1724 rss_cfg->hashed_flds = prof->segs[prof->segs_cnt - 1].match;
1725 rss_cfg->packet_hdr = prof->segs[prof->segs_cnt - 1].hdrs;
1726 ice_set_bit(vsi_handle, rss_cfg->vsis);
1728 LIST_ADD_TAIL(&rss_cfg->l_entry, &hw->rss_list_head);
1733 #define ICE_FLOW_PROF_HASH_S 0
1734 #define ICE_FLOW_PROF_HASH_M (0xFFFFFFFFULL << ICE_FLOW_PROF_HASH_S)
1735 #define ICE_FLOW_PROF_HDR_S 32
1736 #define ICE_FLOW_PROF_HDR_M (0xFFFFFFFFULL << ICE_FLOW_PROF_HDR_S)
1738 #define ICE_FLOW_GEN_PROFID(hash, hdr) \
1739 (u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \
1740 (((u64)(hdr) << ICE_FLOW_PROF_HDR_S) & ICE_FLOW_PROF_HDR_M))
1743 * ice_add_rss_cfg_sync - add an RSS configuration
1744 * @hw: pointer to the hardware structure
1745 * @vsi_handle: software VSI handle
1746 * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure
1747 * @addl_hdrs: protocol header fields
1749 * Assumption: lock has already been acquired for RSS list
1751 static enum ice_status
1752 ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
1755 const enum ice_block blk = ICE_BLK_RSS;
1756 struct ice_flow_prof *prof = NULL;
1757 struct ice_flow_seg_info *segs;
1758 enum ice_status status = ICE_SUCCESS;
1760 segs = (struct ice_flow_seg_info *)ice_malloc(hw, sizeof(*segs));
1762 return ICE_ERR_NO_MEMORY;
1764 /* Construct the packet segment info from the hashed fields */
1765 status = ice_flow_set_rss_seg_info(segs, hashed_flds, addl_hdrs);
1769 /* Search for a flow profile that has matching headers, hash fields
1770 * and has the input VSI associated to it. If found, no further
1771 * operations required and exit.
1773 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, 1,
1775 ICE_FLOW_FIND_PROF_CHK_FLDS |
1776 ICE_FLOW_FIND_PROF_CHK_VSI);
1780 /* Check if a flow profile exists with the same protocol headers and
1781 * associated with the input VSI. If so disasscociate the VSI from
1782 * this profile. The VSI will be added to a new profile created with
1783 * the protocol header and new hash field configuration.
1785 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, 1,
1786 vsi_handle, ICE_FLOW_FIND_PROF_CHK_VSI);
1788 status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle);
1790 ice_rem_rss_list(hw, vsi_handle, prof);
1794 /* Remove profile if it has no VSIs associated */
1795 if (!ice_is_any_bit_set(prof->vsis, ICE_MAX_VSI)) {
1796 status = ice_flow_rem_prof_sync(hw, blk, prof);
1802 /* Search for a profile that has same match fields only. If this
1803 * exists then associate the VSI to this profile.
1805 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, 1,
1807 ICE_FLOW_FIND_PROF_CHK_FLDS);
1809 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
1811 status = ice_add_rss_list(hw, vsi_handle, prof);
1815 /* Create a new flow profile with generated profile and packet
1816 * segment information.
1818 status = ice_flow_add_prof(hw, blk, ICE_FLOW_RX,
1819 ICE_FLOW_GEN_PROFID(hashed_flds, segs->hdrs),
1820 segs, 1, NULL, 0, &prof);
1824 status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
1825 /* If association to a new flow profile failed then this profile can
1829 ice_flow_rem_prof_sync(hw, blk, prof);
1833 status = ice_add_rss_list(hw, vsi_handle, prof);
1841 * ice_add_rss_cfg - add an RSS configuration with specified hashed fields
1842 * @hw: pointer to the hardware structure
1843 * @vsi_handle: software VSI handle
1844 * @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure
1845 * @addl_hdrs: protocol header fields
1847 * This function will generate a flow profile based on fields associated with
1848 * the input fields to hash on, the flow type and use the VSI number to add
1849 * a flow entry to the profile.
1852 ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
1855 enum ice_status status;
1857 if (hashed_flds == ICE_HASH_INVALID ||
1858 !ice_is_vsi_valid(hw, vsi_handle))
1859 return ICE_ERR_PARAM;
1861 ice_acquire_lock(&hw->rss_locks);
1862 status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs);
1863 ice_release_lock(&hw->rss_locks);
1869 * ice_rem_rss_cfg_sync - remove an existing RSS configuration
1870 * @hw: pointer to the hardware structure
1871 * @vsi_handle: software VSI handle
1872 * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove
1873 * @addl_hdrs: Protocol header fields within a packet segment
1875 * Assumption: lock has already been acquired for RSS list
1877 static enum ice_status
1878 ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
1881 const enum ice_block blk = ICE_BLK_RSS;
1882 struct ice_flow_seg_info *segs;
1883 struct ice_flow_prof *prof;
1884 enum ice_status status;
1886 segs = (struct ice_flow_seg_info *)ice_malloc(hw, sizeof(*segs));
1888 return ICE_ERR_NO_MEMORY;
1890 /* Construct the packet segment info from the hashed fields */
1891 status = ice_flow_set_rss_seg_info(segs, hashed_flds, addl_hdrs);
1895 prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, 1,
1897 ICE_FLOW_FIND_PROF_CHK_FLDS);
1899 status = ICE_ERR_DOES_NOT_EXIST;
1903 status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle);
1907 /* Remove RSS configuration from VSI context before deleting
1910 ice_rem_rss_list(hw, vsi_handle, prof);
1912 if (!ice_is_any_bit_set(prof->vsis, ICE_MAX_VSI))
1913 status = ice_flow_rem_prof_sync(hw, blk, prof);
1920 /* Mapping of AVF hash bit fields to an L3-L4 hash combination.
1921 * As the ice_flow_avf_hdr_field represent individual bit shifts in a hash,
1922 * convert its values to their appropriate flow L3, L4 values.
1924 #define ICE_FLOW_AVF_RSS_IPV4_MASKS \
1925 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_OTHER) | \
1926 BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV4))
1927 #define ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS \
1928 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK) | \
1929 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP))
1930 #define ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS \
1931 (BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP) | \
1932 BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP) | \
1933 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_UDP))
1934 #define ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS \
1935 (ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS | \
1936 ICE_FLOW_AVF_RSS_IPV4_MASKS | BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP))
1938 #define ICE_FLOW_AVF_RSS_IPV6_MASKS \
1939 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_OTHER) | \
1940 BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV6))
1941 #define ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS \
1942 (BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP) | \
1943 BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP) | \
1944 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_UDP))
1945 #define ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS \
1946 (BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK) | \
1947 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP))
1948 #define ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS \
1949 (ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS | \
1950 ICE_FLOW_AVF_RSS_IPV6_MASKS | BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP))
1952 #define ICE_FLOW_MAX_CFG 10
1955 * ice_add_avf_rss_cfg - add an RSS configuration for AVF driver
1956 * @hw: pointer to the hardware structure
1957 * @vsi_handle: software VSI handle
1958 * @avf_hash: hash bit fields (ICE_AVF_FLOW_FIELD_*) to configure
1960 * This function will take the hash bitmap provided by the AVF driver via a
1961 * message, convert it to ICE-compatible values, and configure RSS flow
1965 ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 avf_hash)
1967 enum ice_status status = ICE_SUCCESS;
1970 if (avf_hash == ICE_AVF_FLOW_FIELD_INVALID ||
1971 !ice_is_vsi_valid(hw, vsi_handle))
1972 return ICE_ERR_PARAM;
1974 /* Make sure no unsupported bits are specified */
1975 if (avf_hash & ~(ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS |
1976 ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS))
1979 hash_flds = avf_hash;
1981 /* Always create an L3 RSS configuration for any L4 RSS configuration */
1982 if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS)
1983 hash_flds |= ICE_FLOW_AVF_RSS_IPV4_MASKS;
1985 if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS)
1986 hash_flds |= ICE_FLOW_AVF_RSS_IPV6_MASKS;
1988 /* Create the corresponding RSS configuration for each valid hash bit */
1990 u64 rss_hash = ICE_HASH_INVALID;
1992 if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS) {
1993 if (hash_flds & ICE_FLOW_AVF_RSS_IPV4_MASKS) {
1994 rss_hash = ICE_FLOW_HASH_IPV4;
1995 hash_flds &= ~ICE_FLOW_AVF_RSS_IPV4_MASKS;
1996 } else if (hash_flds &
1997 ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS) {
1998 rss_hash = ICE_FLOW_HASH_IPV4 |
1999 ICE_FLOW_HASH_TCP_PORT;
2000 hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS;
2001 } else if (hash_flds &
2002 ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS) {
2003 rss_hash = ICE_FLOW_HASH_IPV4 |
2004 ICE_FLOW_HASH_UDP_PORT;
2005 hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS;
2006 } else if (hash_flds &
2007 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP)) {
2008 rss_hash = ICE_FLOW_HASH_IPV4 |
2009 ICE_FLOW_HASH_SCTP_PORT;
2011 ~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP);
2013 } else if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS) {
2014 if (hash_flds & ICE_FLOW_AVF_RSS_IPV6_MASKS) {
2015 rss_hash = ICE_FLOW_HASH_IPV6;
2016 hash_flds &= ~ICE_FLOW_AVF_RSS_IPV6_MASKS;
2017 } else if (hash_flds &
2018 ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS) {
2019 rss_hash = ICE_FLOW_HASH_IPV6 |
2020 ICE_FLOW_HASH_TCP_PORT;
2021 hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS;
2022 } else if (hash_flds &
2023 ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS) {
2024 rss_hash = ICE_FLOW_HASH_IPV6 |
2025 ICE_FLOW_HASH_UDP_PORT;
2026 hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS;
2027 } else if (hash_flds &
2028 BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP)) {
2029 rss_hash = ICE_FLOW_HASH_IPV6 |
2030 ICE_FLOW_HASH_SCTP_PORT;
2032 ~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP);
2036 if (rss_hash == ICE_HASH_INVALID)
2037 return ICE_ERR_OUT_OF_RANGE;
2039 status = ice_add_rss_cfg(hw, vsi_handle, rss_hash,
2040 ICE_FLOW_SEG_HDR_NONE);
2049 * ice_rem_rss_cfg - remove an existing RSS config with matching hashed fields
2050 * @hw: pointer to the hardware structure
2051 * @vsi_handle: software VSI handle
2052 * @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove
2053 * @addl_hdrs: Protocol header fields within a packet segment
2055 * This function will lookup the flow profile based on the input
2056 * hash field bitmap, iterate through the profile entry list of
2057 * that profile and find entry associated with input VSI to be
2058 * removed. Calls are made to underlying flow apis which will in
2059 * turn build or update buffers for RSS XLT1 section.
2062 ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
2065 enum ice_status status;
2067 if (hashed_flds == ICE_HASH_INVALID ||
2068 !ice_is_vsi_valid(hw, vsi_handle))
2069 return ICE_ERR_PARAM;
2071 ice_acquire_lock(&hw->rss_locks);
2072 status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs);
2073 ice_release_lock(&hw->rss_locks);
2079 * ice_replay_rss_cfg - replay RSS configurations associated with VSI
2080 * @hw: pointer to the hardware structure
2081 * @vsi_handle: software VSI handle
2083 enum ice_status ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle)
2085 enum ice_status status = ICE_SUCCESS;
2086 struct ice_rss_cfg *r;
2088 if (!ice_is_vsi_valid(hw, vsi_handle))
2089 return ICE_ERR_PARAM;
2091 ice_acquire_lock(&hw->rss_locks);
2092 LIST_FOR_EACH_ENTRY(r, &hw->rss_list_head,
2093 ice_rss_cfg, l_entry) {
2094 if (ice_is_bit_set(r->vsis, vsi_handle)) {
2095 status = ice_add_rss_cfg_sync(hw, vsi_handle,
2102 ice_release_lock(&hw->rss_locks);
2108 * ice_get_rss_cfg - returns hashed fields for the given header types
2109 * @hw: pointer to the hardware structure
2110 * @vsi_handle: software VSI handle
2111 * @hdrs: protocol header type
2113 * This function will return the match fields of the first instance of flow
2114 * profile having the given header types and containing input VSI
2116 u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs)
2118 struct ice_rss_cfg *r, *rss_cfg = NULL;
2120 /* verify if the protocol header is non zero and VSI is valid */
2121 if (hdrs == ICE_FLOW_SEG_HDR_NONE || !ice_is_vsi_valid(hw, vsi_handle))
2122 return ICE_HASH_INVALID;
2124 ice_acquire_lock(&hw->rss_locks);
2125 LIST_FOR_EACH_ENTRY(r, &hw->rss_list_head,
2126 ice_rss_cfg, l_entry)
2127 if (ice_is_bit_set(r->vsis, vsi_handle) &&
2128 r->packet_hdr == hdrs) {
2132 ice_release_lock(&hw->rss_locks);
2134 return rss_cfg ? rss_cfg->hashed_flds : ICE_HASH_INVALID;