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Stop endianess conversion in parser #4193

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merged 3 commits into from
Oct 13, 2023
Merged

Stop endianess conversion in parser #4193

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c50508e
Stop endianess conversion in parser
komaljai Oct 12, 2023
53da0f3
Added comments
komaljai Oct 13, 2023
fff8db3
Merge branch 'main' of https://github.com/p4lang/p4c into no_endianes…
komaljai Oct 13, 2023
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Stop endianess conversion in parser
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@komaljai
komaljai committed Oct 12, 2023
commit c50508e569327ccf8185cabcfe3d54510e70e1ab
3 changes: 3 additions & 0 deletions backends/ebpf/runtime/ebpf_kernel.h
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,9 @@ limitations under the License.

#define load_byte(data, b) (*(((u8*)(data)) + (b)))
#define load_half(data, b) bpf_ntohs(*(u16 *)((u8*)(data) + (b)))
#define load_half_ne(data, b) (*(u16 *)((u8*)(data) + (b)))
#define load_word_ne(data, b) (*(u32 *)((u8*)(data) + (b)))
#define load_dword_ne(data, b) (*(u64 *)((u8*)(data) + (b)))
#define load_word(data, b) bpf_ntohl(*(u32 *)((u8*)(data) + (b)))
#define load_dword(data, b) bpf_be64_to_cpu(*(u64 *)((u8*)(data) + (b)))

Expand Down
8 changes: 4 additions & 4 deletions backends/tc/ebpfCodeGen.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -542,14 +542,14 @@ void PnaStateTranslationVisitor::compileExtractField(const IR::Expression *expr,
helper = "load_byte";
loadSize = 8;
} else if (wordsToRead <= 2) {
helper = "load_half";
helper = "load_half_ne";
loadSize = 16;
} else if (wordsToRead <= 4) {
helper = "load_word";
helper = "load_word_ne";
loadSize = 32;
} else {
if (wordsToRead > 64) BUG("Unexpected width %d", widthToExtract);
helper = "load_dword";
helper = "load_dword_ne";
loadSize = 64;
}

Expand Down Expand Up @@ -606,7 +606,7 @@ void PnaStateTranslationVisitor::compileExtractField(const IR::Expression *expr,
if (shift == 0)
helper = "load_byte";
else
helper = "load_half";
helper = "load_half_ne";
auto bt = EBPF::EBPFTypeFactory::instance->create(IR::Type_Bits::get(8));
unsigned bytes = ROUNDUP(widthToExtract, 8);
for (unsigned i = 0; i < bytes; i++) {
Expand Down
18 changes: 9 additions & 9 deletions testdata/p4tc_samples_outputs/default_action_example_parser.c
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Original file line number Diff line number Diff line change
Expand Up @@ -49,16 +49,16 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct headers_t *h
hdr->ipv4.diffserv = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 8;

hdr->ipv4.totalLen = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.totalLen = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.identification = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.identification = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.flags = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits)) >> 5) & EBPF_MASK(u8, 3));
ebpf_packetOffsetInBits += 3;

hdr->ipv4.fragOffset = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))) & EBPF_MASK(u16, 13));
hdr->ipv4.fragOffset = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))) & EBPF_MASK(u16, 13));
ebpf_packetOffsetInBits += 13;

hdr->ipv4.ttl = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
Expand All @@ -67,13 +67,13 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct headers_t *h
hdr->ipv4.protocol = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 8;

hdr->ipv4.hdrChecksum = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.hdrChecksum = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.srcAddr = (u32)((load_word(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.srcAddr = (u32)((load_word_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 32;

hdr->ipv4.dstAddr = (u32)((load_word(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.dstAddr = (u32)((load_word_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 32;

hdr->ipv4.ebpf_valid = 1;
Expand All @@ -88,13 +88,13 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct headers_t *h
goto reject;
}

hdr->ethernet.dstAddr = (u64)((load_dword(pkt, BYTES(ebpf_packetOffsetInBits)) >> 16) & EBPF_MASK(u64, 48));
hdr->ethernet.dstAddr = (u64)((load_dword_ne(pkt, BYTES(ebpf_packetOffsetInBits)) >> 16) & EBPF_MASK(u64, 48));
ebpf_packetOffsetInBits += 48;

hdr->ethernet.srcAddr = (u64)((load_dword(pkt, BYTES(ebpf_packetOffsetInBits)) >> 16) & EBPF_MASK(u64, 48));
hdr->ethernet.srcAddr = (u64)((load_dword_ne(pkt, BYTES(ebpf_packetOffsetInBits)) >> 16) & EBPF_MASK(u64, 48));
ebpf_packetOffsetInBits += 48;

hdr->ethernet.etherType = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ethernet.etherType = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ethernet.ebpf_valid = 1;
Expand Down
32 changes: 16 additions & 16 deletions testdata/p4tc_samples_outputs/default_hit_const_example_parser.c
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Original file line number Diff line number Diff line change
Expand Up @@ -49,16 +49,16 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct headers_t *h
hdr->ipv4.diffserv = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 8;

hdr->ipv4.totalLen = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.totalLen = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.identification = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.identification = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.flags = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits)) >> 5) & EBPF_MASK(u8, 3));
ebpf_packetOffsetInBits += 3;

hdr->ipv4.fragOffset = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))) & EBPF_MASK(u16, 13));
hdr->ipv4.fragOffset = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))) & EBPF_MASK(u16, 13));
ebpf_packetOffsetInBits += 13;

hdr->ipv4.ttl = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
Expand All @@ -67,13 +67,13 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct headers_t *h
hdr->ipv4.protocol = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 8;

hdr->ipv4.hdrChecksum = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.hdrChecksum = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.srcAddr = (u32)((load_word(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.srcAddr = (u32)((load_word_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 32;

hdr->ipv4.dstAddr = (u32)((load_word(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.dstAddr = (u32)((load_word_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 32;

hdr->ipv4.ebpf_valid = 1;
Expand All @@ -92,16 +92,16 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct headers_t *h
goto reject;
}

hdr->tcp.srcPort = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->tcp.srcPort = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->tcp.dstPort = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->tcp.dstPort = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->tcp.seqNo = (u32)((load_word(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->tcp.seqNo = (u32)((load_word_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 32;

hdr->tcp.ackNo = (u32)((load_word(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->tcp.ackNo = (u32)((load_word_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 32;

hdr->tcp.dataOffset = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits)) >> 4) & EBPF_MASK(u8, 4));
Expand All @@ -113,13 +113,13 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct headers_t *h
hdr->tcp.flags = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 8;

hdr->tcp.window = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->tcp.window = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->tcp.checksum = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->tcp.checksum = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->tcp.urgentPtr = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->tcp.urgentPtr = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->tcp.ebpf_valid = 1;
Expand All @@ -134,13 +134,13 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct headers_t *h
goto reject;
}

hdr->eth.dstAddr = (u64)((load_dword(pkt, BYTES(ebpf_packetOffsetInBits)) >> 16) & EBPF_MASK(u64, 48));
hdr->eth.dstAddr = (u64)((load_dword_ne(pkt, BYTES(ebpf_packetOffsetInBits)) >> 16) & EBPF_MASK(u64, 48));
ebpf_packetOffsetInBits += 48;

hdr->eth.srcAddr = (u64)((load_dword(pkt, BYTES(ebpf_packetOffsetInBits)) >> 16) & EBPF_MASK(u64, 48));
hdr->eth.srcAddr = (u64)((load_dword_ne(pkt, BYTES(ebpf_packetOffsetInBits)) >> 16) & EBPF_MASK(u64, 48));
ebpf_packetOffsetInBits += 48;

hdr->eth.etherType = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->eth.etherType = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->eth.ebpf_valid = 1;
Expand Down
18 changes: 9 additions & 9 deletions testdata/p4tc_samples_outputs/drop_packet_example_parser.c
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Original file line number Diff line number Diff line change
Expand Up @@ -49,16 +49,16 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct headers_t *h
hdr->ipv4.diffserv = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 8;

hdr->ipv4.totalLen = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.totalLen = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.identification = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.identification = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.flags = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits)) >> 5) & EBPF_MASK(u8, 3));
ebpf_packetOffsetInBits += 3;

hdr->ipv4.fragOffset = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))) & EBPF_MASK(u16, 13));
hdr->ipv4.fragOffset = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))) & EBPF_MASK(u16, 13));
ebpf_packetOffsetInBits += 13;

hdr->ipv4.ttl = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
Expand All @@ -67,13 +67,13 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct headers_t *h
hdr->ipv4.protocol = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 8;

hdr->ipv4.hdrChecksum = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.hdrChecksum = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.srcAddr = (u32)((load_word(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.srcAddr = (u32)((load_word_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 32;

hdr->ipv4.dstAddr = (u32)((load_word(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.dstAddr = (u32)((load_word_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 32;

hdr->ipv4.ebpf_valid = 1;
Expand All @@ -88,13 +88,13 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct headers_t *h
goto reject;
}

hdr->ethernet.dstAddr = (u64)((load_dword(pkt, BYTES(ebpf_packetOffsetInBits)) >> 16) & EBPF_MASK(u64, 48));
hdr->ethernet.dstAddr = (u64)((load_dword_ne(pkt, BYTES(ebpf_packetOffsetInBits)) >> 16) & EBPF_MASK(u64, 48));
ebpf_packetOffsetInBits += 48;

hdr->ethernet.srcAddr = (u64)((load_dword(pkt, BYTES(ebpf_packetOffsetInBits)) >> 16) & EBPF_MASK(u64, 48));
hdr->ethernet.srcAddr = (u64)((load_dword_ne(pkt, BYTES(ebpf_packetOffsetInBits)) >> 16) & EBPF_MASK(u64, 48));
ebpf_packetOffsetInBits += 48;

hdr->ethernet.etherType = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ethernet.etherType = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ethernet.ebpf_valid = 1;
Expand Down
14 changes: 7 additions & 7 deletions testdata/p4tc_samples_outputs/global_action_example_01_parser.c
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Original file line number Diff line number Diff line change
Expand Up @@ -49,16 +49,16 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct my_ingress_h
hdr->ipv4.diffserv = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 8;

hdr->ipv4.totalLen = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.totalLen = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.identification = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.identification = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.flags = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits)) >> 5) & EBPF_MASK(u8, 3));
ebpf_packetOffsetInBits += 3;

hdr->ipv4.fragOffset = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))) & EBPF_MASK(u16, 13));
hdr->ipv4.fragOffset = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))) & EBPF_MASK(u16, 13));
ebpf_packetOffsetInBits += 13;

hdr->ipv4.ttl = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
Expand All @@ -67,13 +67,13 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct my_ingress_h
hdr->ipv4.protocol = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 8;

hdr->ipv4.hdrChecksum = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.hdrChecksum = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.srcAddr = (u32)((load_word(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.srcAddr = (u32)((load_word_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 32;

hdr->ipv4.dstAddr = (u32)((load_word(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.dstAddr = (u32)((load_word_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 32;

hdr->ipv4.ebpf_valid = 1;
Expand All @@ -94,7 +94,7 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct my_ingress_h
__builtin_memcpy(&hdr->ethernet.srcAddr, pkt + BYTES(ebpf_packetOffsetInBits), 6);
ebpf_packetOffsetInBits += 48;

hdr->ethernet.etherType = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ethernet.etherType = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ethernet.ebpf_valid = 1;
Expand Down
14 changes: 7 additions & 7 deletions testdata/p4tc_samples_outputs/global_action_example_02_parser.c
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Original file line number Diff line number Diff line change
Expand Up @@ -49,16 +49,16 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct my_ingress_h
hdr->ipv4.diffserv = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 8;

hdr->ipv4.totalLen = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.totalLen = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.identification = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.identification = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.flags = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits)) >> 5) & EBPF_MASK(u8, 3));
ebpf_packetOffsetInBits += 3;

hdr->ipv4.fragOffset = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))) & EBPF_MASK(u16, 13));
hdr->ipv4.fragOffset = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))) & EBPF_MASK(u16, 13));
ebpf_packetOffsetInBits += 13;

hdr->ipv4.ttl = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
Expand All @@ -67,13 +67,13 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct my_ingress_h
hdr->ipv4.protocol = (u8)((load_byte(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 8;

hdr->ipv4.hdrChecksum = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.hdrChecksum = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ipv4.srcAddr = (u32)((load_word(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.srcAddr = (u32)((load_word_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 32;

hdr->ipv4.dstAddr = (u32)((load_word(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ipv4.dstAddr = (u32)((load_word_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 32;

hdr->ipv4.ebpf_valid = 1;
Expand All @@ -94,7 +94,7 @@ static __always_inline int run_parser(struct __sk_buff *skb, struct my_ingress_h
__builtin_memcpy(&hdr->ethernet.srcAddr, pkt + BYTES(ebpf_packetOffsetInBits), 6);
ebpf_packetOffsetInBits += 48;

hdr->ethernet.etherType = (u16)((load_half(pkt, BYTES(ebpf_packetOffsetInBits))));
hdr->ethernet.etherType = (u16)((load_half_ne(pkt, BYTES(ebpf_packetOffsetInBits))));
ebpf_packetOffsetInBits += 16;

hdr->ethernet.ebpf_valid = 1;
Expand Down
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