avf: use write combining store for queues tail update
Performance improvement: on supported platforms, currently only Intel Tremont,
use a write combining store to update the tail pointers.
Also, Tremont node variant is added for all.
Type: improvement
Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
Change-Id: Ie9606e403b7d9655184f778e3ffee3027c8c9edd
diff --git a/src/vppinfra/cpu.h b/src/vppinfra/cpu.h
index 750b393..6a81218 100644
--- a/src/vppinfra/cpu.h
+++ b/src/vppinfra/cpu.h
@@ -114,29 +114,30 @@
clib_march_fn_registration *fn##_march_fn_registrations = 0; \
_CLIB_MARCH_FN_REGISTRATION(fn)
#endif
-#define foreach_x86_64_flags \
-_ (sse3, 1, ecx, 0) \
-_ (pclmulqdq, 1, ecx, 1) \
-_ (ssse3, 1, ecx, 9) \
-_ (sse41, 1, ecx, 19) \
-_ (sse42, 1, ecx, 20) \
-_ (avx, 1, ecx, 28) \
-_ (rdrand, 1, ecx, 30) \
-_ (avx2, 7, ebx, 5) \
-_ (rtm, 7, ebx, 11) \
-_ (pqm, 7, ebx, 12) \
-_ (pqe, 7, ebx, 15) \
-_ (avx512f, 7, ebx, 16) \
-_ (rdseed, 7, ebx, 18) \
-_ (x86_aes, 1, ecx, 25) \
-_ (sha, 7, ebx, 29) \
-_ (vaes, 7, ecx, 9) \
-_ (vpclmulqdq, 7, ecx, 10) \
-_ (avx512_vnni, 7, ecx, 11) \
-_ (avx512_bitalg, 7, ecx, 12) \
-_ (avx512_vpopcntdq, 7, ecx, 14) \
-_ (invariant_tsc, 0x80000007, edx, 8)
-
+#define foreach_x86_64_flags \
+ _ (sse3, 1, ecx, 0) \
+ _ (pclmulqdq, 1, ecx, 1) \
+ _ (ssse3, 1, ecx, 9) \
+ _ (sse41, 1, ecx, 19) \
+ _ (sse42, 1, ecx, 20) \
+ _ (avx, 1, ecx, 28) \
+ _ (rdrand, 1, ecx, 30) \
+ _ (avx2, 7, ebx, 5) \
+ _ (rtm, 7, ebx, 11) \
+ _ (pqm, 7, ebx, 12) \
+ _ (pqe, 7, ebx, 15) \
+ _ (avx512f, 7, ebx, 16) \
+ _ (rdseed, 7, ebx, 18) \
+ _ (x86_aes, 1, ecx, 25) \
+ _ (sha, 7, ebx, 29) \
+ _ (vaes, 7, ecx, 9) \
+ _ (vpclmulqdq, 7, ecx, 10) \
+ _ (avx512_vnni, 7, ecx, 11) \
+ _ (avx512_bitalg, 7, ecx, 12) \
+ _ (avx512_vpopcntdq, 7, ecx, 14) \
+ _ (movdiri, 7, ecx, 27) \
+ _ (movdir64b, 7, ecx, 28) \
+ _ (invariant_tsc, 0x80000007, edx, 8)
#define foreach_aarch64_flags \
_ (fp, 0) \
@@ -264,6 +265,14 @@
}
static inline int
+clib_cpu_march_priority_trm ()
+{
+ if (clib_cpu_supports_movdiri ())
+ return 60;
+ return -1;
+}
+
+static inline int
clib_cpu_march_priority_hsw ()
{
if (clib_cpu_supports_avx2 ())