Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Rahul Lakkireddy | 1687 | 99.94% | 3 | 75.00% |
Gustavo A. R. Silva | 1 | 0.06% | 1 | 25.00% |
Total | 1688 | 4 |
/* * This file is part of the Chelsio T4 Ethernet driver for Linux. * * Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef __CXGB4_TC_U32_PARSE_H #define __CXGB4_TC_U32_PARSE_H struct cxgb4_match_field { int off; /* Offset from the beginning of the header to match */ /* Fill the value/mask pair in the spec if matched */ int (*val)(struct ch_filter_specification *f, __be32 val, __be32 mask); }; /* IPv4 match fields */ static inline int cxgb4_fill_ipv4_tos(struct ch_filter_specification *f, __be32 val, __be32 mask) { f->val.tos = (ntohl(val) >> 16) & 0x000000FF; f->mask.tos = (ntohl(mask) >> 16) & 0x000000FF; return 0; } static inline int cxgb4_fill_ipv4_frag(struct ch_filter_specification *f, __be32 val, __be32 mask) { u32 mask_val; u8 frag_val; frag_val = (ntohl(val) >> 13) & 0x00000007; mask_val = ntohl(mask) & 0x0000FFFF; if (frag_val == 0x1 && mask_val != 0x3FFF) { /* MF set */ f->val.frag = 1; f->mask.frag = 1; } else if (frag_val == 0x2 && mask_val != 0x3FFF) { /* DF set */ f->val.frag = 0; f->mask.frag = 1; } else { return -EINVAL; } return 0; } static inline int cxgb4_fill_ipv4_proto(struct ch_filter_specification *f, __be32 val, __be32 mask) { f->val.proto = (ntohl(val) >> 16) & 0x000000FF; f->mask.proto = (ntohl(mask) >> 16) & 0x000000FF; return 0; } static inline int cxgb4_fill_ipv4_src_ip(struct ch_filter_specification *f, __be32 val, __be32 mask) { memcpy(&f->val.fip[0], &val, sizeof(u32)); memcpy(&f->mask.fip[0], &mask, sizeof(u32)); return 0; } static inline int cxgb4_fill_ipv4_dst_ip(struct ch_filter_specification *f, __be32 val, __be32 mask) { memcpy(&f->val.lip[0], &val, sizeof(u32)); memcpy(&f->mask.lip[0], &mask, sizeof(u32)); return 0; } static const struct cxgb4_match_field cxgb4_ipv4_fields[] = { { .off = 0, .val = cxgb4_fill_ipv4_tos }, { .off = 4, .val = cxgb4_fill_ipv4_frag }, { .off = 8, .val = cxgb4_fill_ipv4_proto }, { .off = 12, .val = cxgb4_fill_ipv4_src_ip }, { .off = 16, .val = cxgb4_fill_ipv4_dst_ip }, { .val = NULL } }; /* IPv6 match fields */ static inline int cxgb4_fill_ipv6_tos(struct ch_filter_specification *f, __be32 val, __be32 mask) { f->val.tos = (ntohl(val) >> 20) & 0x000000FF; f->mask.tos = (ntohl(mask) >> 20) & 0x000000FF; return 0; } static inline int cxgb4_fill_ipv6_proto(struct ch_filter_specification *f, __be32 val, __be32 mask) { f->val.proto = (ntohl(val) >> 8) & 0x000000FF; f->mask.proto = (ntohl(mask) >> 8) & 0x000000FF; return 0; } static inline int cxgb4_fill_ipv6_src_ip0(struct ch_filter_specification *f, __be32 val, __be32 mask) { memcpy(&f->val.fip[0], &val, sizeof(u32)); memcpy(&f->mask.fip[0], &mask, sizeof(u32)); return 0; } static inline int cxgb4_fill_ipv6_src_ip1(struct ch_filter_specification *f, __be32 val, __be32 mask) { memcpy(&f->val.fip[4], &val, sizeof(u32)); memcpy(&f->mask.fip[4], &mask, sizeof(u32)); return 0; } static inline int cxgb4_fill_ipv6_src_ip2(struct ch_filter_specification *f, __be32 val, __be32 mask) { memcpy(&f->val.fip[8], &val, sizeof(u32)); memcpy(&f->mask.fip[8], &mask, sizeof(u32)); return 0; } static inline int cxgb4_fill_ipv6_src_ip3(struct ch_filter_specification *f, __be32 val, __be32 mask) { memcpy(&f->val.fip[12], &val, sizeof(u32)); memcpy(&f->mask.fip[12], &mask, sizeof(u32)); return 0; } static inline int cxgb4_fill_ipv6_dst_ip0(struct ch_filter_specification *f, __be32 val, __be32 mask) { memcpy(&f->val.lip[0], &val, sizeof(u32)); memcpy(&f->mask.lip[0], &mask, sizeof(u32)); return 0; } static inline int cxgb4_fill_ipv6_dst_ip1(struct ch_filter_specification *f, __be32 val, __be32 mask) { memcpy(&f->val.lip[4], &val, sizeof(u32)); memcpy(&f->mask.lip[4], &mask, sizeof(u32)); return 0; } static inline int cxgb4_fill_ipv6_dst_ip2(struct ch_filter_specification *f, __be32 val, __be32 mask) { memcpy(&f->val.lip[8], &val, sizeof(u32)); memcpy(&f->mask.lip[8], &mask, sizeof(u32)); return 0; } static inline int cxgb4_fill_ipv6_dst_ip3(struct ch_filter_specification *f, __be32 val, __be32 mask) { memcpy(&f->val.lip[12], &val, sizeof(u32)); memcpy(&f->mask.lip[12], &mask, sizeof(u32)); return 0; } static const struct cxgb4_match_field cxgb4_ipv6_fields[] = { { .off = 0, .val = cxgb4_fill_ipv6_tos }, { .off = 4, .val = cxgb4_fill_ipv6_proto }, { .off = 8, .val = cxgb4_fill_ipv6_src_ip0 }, { .off = 12, .val = cxgb4_fill_ipv6_src_ip1 }, { .off = 16, .val = cxgb4_fill_ipv6_src_ip2 }, { .off = 20, .val = cxgb4_fill_ipv6_src_ip3 }, { .off = 24, .val = cxgb4_fill_ipv6_dst_ip0 }, { .off = 28, .val = cxgb4_fill_ipv6_dst_ip1 }, { .off = 32, .val = cxgb4_fill_ipv6_dst_ip2 }, { .off = 36, .val = cxgb4_fill_ipv6_dst_ip3 }, { .val = NULL } }; /* TCP/UDP match */ static inline int cxgb4_fill_l4_ports(struct ch_filter_specification *f, __be32 val, __be32 mask) { f->val.fport = ntohl(val) >> 16; f->mask.fport = ntohl(mask) >> 16; f->val.lport = ntohl(val) & 0x0000FFFF; f->mask.lport = ntohl(mask) & 0x0000FFFF; return 0; }; static const struct cxgb4_match_field cxgb4_tcp_fields[] = { { .off = 0, .val = cxgb4_fill_l4_ports }, { .val = NULL } }; static const struct cxgb4_match_field cxgb4_udp_fields[] = { { .off = 0, .val = cxgb4_fill_l4_ports }, { .val = NULL } }; struct cxgb4_next_header { /* Offset, shift, and mask added to beginning of the header * to get to next header. Useful when using a header * field's value to jump to next header such as IHL field * in IPv4 header. */ struct tc_u32_sel sel; struct tc_u32_key key; /* location of jump to make */ const struct cxgb4_match_field *jump; }; /* Accept a rule with a jump to transport layer header based on IHL field in * IPv4 header. */ static const struct cxgb4_next_header cxgb4_ipv4_jumps[] = { { /* TCP Jump */ .sel = { .off = 0, .offoff = 0, .offshift = 6, .offmask = cpu_to_be16(0x0f00), }, .key = { .off = 8, .val = cpu_to_be32(0x00060000), .mask = cpu_to_be32(0x00ff0000), }, .jump = cxgb4_tcp_fields, }, { /* UDP Jump */ .sel = { .off = 0, .offoff = 0, .offshift = 6, .offmask = cpu_to_be16(0x0f00), }, .key = { .off = 8, .val = cpu_to_be32(0x00110000), .mask = cpu_to_be32(0x00ff0000), }, .jump = cxgb4_udp_fields, }, { .jump = NULL }, }; /* Accept a rule with a jump directly past the 40 Bytes of IPv6 fixed header * to get to transport layer header. */ static const struct cxgb4_next_header cxgb4_ipv6_jumps[] = { { /* TCP Jump */ .sel = { .off = 40, .offoff = 0, .offshift = 0, .offmask = 0, }, .key = { .off = 4, .val = cpu_to_be32(0x00000600), .mask = cpu_to_be32(0x0000ff00), }, .jump = cxgb4_tcp_fields, }, { /* UDP Jump */ .sel = { .off = 40, .offoff = 0, .offshift = 0, .offmask = 0, }, .key = { .off = 4, .val = cpu_to_be32(0x00001100), .mask = cpu_to_be32(0x0000ff00), }, .jump = cxgb4_udp_fields, }, { .jump = NULL }, }; struct cxgb4_link { const struct cxgb4_match_field *match_field; /* Next header */ struct ch_filter_specification fs; /* Match spec associated with link */ u32 link_handle; /* Knode handle associated with the link */ unsigned long *tid_map; /* Bitmap for filter tids */ }; struct cxgb4_tc_u32_table { unsigned int size; /* number of entries in table */ struct cxgb4_link table[]; /* Jump table */ }; #endif /* __CXGB4_TC_U32_PARSE_H */
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