Module Name: src
Committed By: mlelstv
Date: Sun Dec 11 08:09:20 UTC 2022
Modified Files:
src/sys/netinet: tcp_vtw.h
Log Message:
Need larger fat pointers for 128bit cache lines.
To generate a diff of this commit:
cvs rdiff -u -r1.9 -r1.10 src/sys/netinet/tcp_vtw.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/netinet/tcp_vtw.h
diff -u src/sys/netinet/tcp_vtw.h:1.9 src/sys/netinet/tcp_vtw.h:1.10
--- src/sys/netinet/tcp_vtw.h:1.9 Thu Apr 19 21:21:44 2018
+++ src/sys/netinet/tcp_vtw.h Sun Dec 11 08:09:20 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: tcp_vtw.h,v 1.9 2018/04/19 21:21:44 christos Exp $ */
+/* $NetBSD: tcp_vtw.h,v 1.10 2022/12/11 08:09:20 mlelstv Exp $ */
/*
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
@@ -151,7 +151,11 @@
*/
struct fatp_mi;
+#if CACHE_LINE_SIZE == 128
+typedef uint64_t fatp_word_t;
+#else
typedef uint32_t fatp_word_t;
+#endif
typedef struct fatp_mi fatp_t;
@@ -161,7 +165,7 @@ typedef struct fatp_mi fatp_t;
#define FATP_NTAGS (CACHE_LINE_SIZE / sizeof(fatp_word_t) - 1)
#define FATP_NXT_WIDTH (sizeof(fatp_word_t) * NBBY - FATP_NTAGS)
-#define FATP_MAX (1 << FATP_NXT_WIDTH)
+#define FATP_MAX (1 << (FATP_NXT_WIDTH < 31 ? FATP_NXT_WIDTH : 31))
/* Worked example: ULP32 with 64-byte cacheline (32-bit x86):
* 15 tags per cacheline. At most 2^17 fat pointers per fatp_ctl_t.
