| Message ID | 1333227682-10235-3-git-send-email-jpirko@redhat.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
From: Jiri Pirko <jpirko@redhat.com> Date: Sat, 31 Mar 2012 23:01:20 +0200 > Add XOR instruction fo BPF machine. Needed for computing packet hashes. > > Signed-off-by: Jiri Pirko <jpirko@redhat.com> Looks good, applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/include/linux/filter.h b/include/linux/filter.h index 92dd993..7209099 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -126,7 +126,8 @@ struct sock_fprog { /* Required for SO_ATTACH_FILTER. */ #define SKF_AD_HATYPE 28 #define SKF_AD_RXHASH 32 #define SKF_AD_CPU 36 -#define SKF_AD_MAX 40 +#define SKF_AD_ALU_XOR_X 40 +#define SKF_AD_MAX 44 #define SKF_NET_OFF (-0x100000) #define SKF_LL_OFF (-0x200000) @@ -231,6 +232,7 @@ enum { BPF_S_ANC_HATYPE, BPF_S_ANC_RXHASH, BPF_S_ANC_CPU, + BPF_S_ANC_ALU_XOR_X, }; #endif /* __KERNEL__ */ diff --git a/net/core/filter.c b/net/core/filter.c index cfbea88..5099c4b 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -315,6 +315,9 @@ load_b: case BPF_S_ANC_CPU: A = raw_smp_processor_id(); continue; + case BPF_S_ANC_ALU_XOR_X: + A ^= X; + continue; case BPF_S_ANC_NLATTR: { struct nlattr *nla; @@ -559,6 +562,7 @@ int sk_chk_filter(struct sock_filter *filter, unsigned int flen) ANCILLARY(HATYPE); ANCILLARY(RXHASH); ANCILLARY(CPU); + ANCILLARY(ALU_XOR_X); } } ftest->code = code;
Add XOR instruction fo BPF machine. Needed for computing packet hashes. Signed-off-by: Jiri Pirko <jpirko@redhat.com> --- include/linux/filter.h | 4 +++- net/core/filter.c | 4 ++++ 2 files changed, 7 insertions(+), 1 deletions(-)