Hi Sameeh, RSS ebpf source code compilation is planned for dpdk next releases.
In order to compile the current tap_bpf_program.c code you will need definitions found in iproute2: https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/ 1. Please clone iproute2 tree and make it accessible to your build environment, say under directory <iproute2_root_tree>. 2. Please add "bpf_api.h" file inclusion in tap_bpf_program.c (following tap_rss.h inclusion, see [1]) 3. When running the clang command please include the iproute2 include directory, for example, clang -I <iproute2_root_tree>/iproute2/include -O2 -emit-llvm -c tap_bpf_program.c -o - | llc -march=bpf -filetype=obj -o tap_bpf_program.o That’s all is needed. [1] ------------------------------------------------------------------------------------------------------- diff --git a/drivers/net/tap/tap_bpf_program.c b/drivers/net/tap/tap_bpf_program.c index 1cb7382..d65f9b8 100644 --- a/drivers/net/tap/tap_bpf_program.c +++ b/drivers/net/tap/tap_bpf_program.c @@ -17,6 +17,7 @@ #include <linux/bpf.h> #include "tap_rss.h" +#include "bpf_api.h" /** Create IPv4 address */ #define IPv4(a, b, c, d) ((__u32)(((a) & 0xff) << 24) | \ ------------------------------------------------------------------------------------------------------- Regards, Ophir From: Sameeh Jubran [mailto:sam...@daynix.com] Sent: Friday, May 25, 2018 11:54 AM To: dev@dpdk.org; Ophir Munk <ophi...@mellanox.com> Cc: Yan Vugenfirer <y...@daynix.com> Subject: Re: Compiling RSS ebpf Ping. On Sun, May 13, 2018 at 1:16 PM, Sameeh Jubran <sam...@daynix.com<mailto:sam...@daynix.com>> wrote: Sorry I have accidentally sent my last email without finishing it. I believe it is due misconfiguration of the linux headers and their inclusion. Anyone else faced these errors? On Sun, May 13, 2018 at 1:10 PM, Sameeh Jubran <sam...@daynix.com<mailto:sam...@daynix.com>> wrote: Hi All, I am attempting to compile the rss epbf program dpdk and I am getting too much compilation errors, is there anything specific that I need to configure when compiling? I am running the following line: clang -O2 -emit-llvm -c tap_bpf_program.c -o - | llc -march=bpf -filetype=obj -o tap_bpf_program.o I think it is due to some misconfiguration of The errors I am getting: tap_bpf_program.c:157:37: warning: implicit declaration of function 'offsetof' is invalid in C99 [-Wimplicit-function-declaration] __u8 *src_dst_addr = data + off + offsetof(struct iphdr, saddr); ^ tap_bpf_program.c:157:46: error: expected expression __u8 *src_dst_addr = data + off + offsetof(struct iphdr, saddr); ^ tap_bpf_program.c:157:60: error: use of undeclared identifier 'saddr' __u8 *src_dst_addr = data + off + offsetof(struct iphdr, saddr); ^ tap_bpf_program.c:180:11: error: use of undeclared identifier 'TC_ACT_OK' return TC_ACT_OK; ^ tap_bpf_program.c:182:15: error: expected expression offsetof(struct ipv6hdr, saddr); ^ tap_bpf_program.c:182:31: error: use of undeclared identifier 'saddr' offsetof(struct ipv6hdr, saddr); ^ tap_bpf_program.c:204:10: error: use of undeclared identifier 'TC_ACT_PIPE' return TC_ACT_PIPE; ^ tap_bpf_program.c:212:9: error: use of undeclared identifier 'TC_ACT_RECLASSIFY' return TC_ACT_RECLASSIFY; ^ tap_bpf_program.c:222:1: error: expected parameter declarator RSS(l3_l4) ^ tap_bpf_program.c:216:12: note: expanded from macro 'RSS' __section(#L) int \ ^ <scratch space>:76:1: note: expanded from here "l3_l4" ^ tap_bpf_program.c:222:1: error: expected ')' tap_bpf_program.c:216:12: note: expanded from macro 'RSS' __section(#L) int \ ^ <scratch space>:76:1: note: expanded from here "l3_l4" ^ tap_bpf_program.c:222:1: note: to match this '(' tap_bpf_program.c:216:11: note: expanded from macro 'RSS' __section(#L) int \ ^ tap_bpf_program.c:222:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int] RSS(l3_l4) ^ tap_bpf_program.c:216:2: note: expanded from macro 'RSS' __section(#L) int \ ^ tap_bpf_program.c:222:1: error: expected ';' after top level declarator tap_bpf_program.c:216:16: note: expanded from macro 'RSS' __section(#L) int \ ^ fatal error: too many errors emitted, stopping now [-ferror-limit=] 6 warnings and 20 errors generated. sameeh@bark:~/Builds/bpf_rss/dpdk/drivers/net/tap$ clear -- Respectfully, Sameeh Jubran Linkedin<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fil.linkedin.com%2Fpub%2Fsameeh-jubran%2F87%2F747%2Fa8a&data=02%7C01%7Cophirmu%40mellanox.com%7Ce218efbbd4794adad85308d5c21d0017%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636628352172243393&sdata=q2cAsmMGwY04jnUU6o54qJNarP%2FXc5Zb0dfisZG1kE0%3D&reserved=0> Software Engineer @ Daynix<https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.daynix.com&data=02%7C01%7Cophirmu%40mellanox.com%7Ce218efbbd4794adad85308d5c21d0017%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636628352172243393&sdata=c4cl%2FHYq7Mluic4%2F1CADH1eMc6Ht2eDEbzrpbWoJrRI%3D&reserved=0>. -- Respectfully, Sameeh Jubran Linkedin<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fil.linkedin.com%2Fpub%2Fsameeh-jubran%2F87%2F747%2Fa8a&data=02%7C01%7Cophirmu%40mellanox.com%7Ce218efbbd4794adad85308d5c21d0017%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636628352172243393&sdata=q2cAsmMGwY04jnUU6o54qJNarP%2FXc5Zb0dfisZG1kE0%3D&reserved=0> Software Engineer @ Daynix<https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.daynix.com&data=02%7C01%7Cophirmu%40mellanox.com%7Ce218efbbd4794adad85308d5c21d0017%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636628352172399649&sdata=QVj0xITWkmUnArcklNhzuIlcxd4DMpUuDGZHVKiDlnI%3D&reserved=0>. -- Respectfully, Sameeh Jubran Linkedin<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fil.linkedin.com%2Fpub%2Fsameeh-jubran%2F87%2F747%2Fa8a&data=02%7C01%7Cophirmu%40mellanox.com%7Ce218efbbd4794adad85308d5c21d0017%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636628352172399649&sdata=QWu2yfldJjjq3P0S2V3WAk9TUbJebFEAJN%2F14s1IUHs%3D&reserved=0> Software Engineer @ Daynix<https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.daynix.com&data=02%7C01%7Cophirmu%40mellanox.com%7Ce218efbbd4794adad85308d5c21d0017%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636628352172399649&sdata=QVj0xITWkmUnArcklNhzuIlcxd4DMpUuDGZHVKiDlnI%3D&reserved=0>.
