From 57fe574e058bc34c95a71995060ac45f71300ab6 Mon Sep 17 00:00:00 2001
From: "Suren A. Chilingaryan" <csa@dside.dyndns.org>
Date: Fri, 26 Jul 2013 17:02:23 +0200
Subject: Allow setting of TLP size
---
apps/xilinx2.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
(limited to 'apps')
diff --git a/apps/xilinx2.c b/apps/xilinx2.c
index 90a2b6a..30e0f94 100644
--- a/apps/xilinx2.c
+++ b/apps/xilinx2.c
@@ -19,6 +19,7 @@
#define STATIC_REGION 0x80000000 // to reserve 512 MB at the specified address, add "memmap=512M$2G" to kernel parameters
#define BUFFERS 1
#define ITERATIONS 100
+#define TLP_SIZE 64
#define HUGE_PAGE 4096 // number of pages per huge page
#define PAGE_SIZE 4096 // other values are not supported in the kernel
#define TIMEOUT 100000
@@ -26,7 +27,7 @@
/* IRQs are slow for some reason. REALTIME mode is slower. Adding delays does not really help,
otherall we have only 3 checks in average. Check ready seems to be not needed and adds quite
much extra time */
-//#define USE_IRQ
+#define USE_IRQ
//#define CHECK_READY
//#define REALTIME
//#define ADD_DELAYS
@@ -139,8 +140,8 @@ int main() {
#endif /* CHECK_RESULT */
WR(0x04, 0)
- WR(0x0C, 0x20)
- WR(0x10, (HUGE_PAGE * (PAGE_SIZE / 0x80)))
+ WR(0x0C, TLP_SIZE)
+ WR(0x10, (HUGE_PAGE * (PAGE_SIZE / (4 * TLP_SIZE))))
WR(0x14, 0x13131313)
for (j = 0; j < BUFFERS; j++ ) {
@@ -194,6 +195,7 @@ int main() {
pcilib_kmem_sync_block(pci, kbuf, PCILIB_KMEM_SYNC_FROMDEVICE, 0);
for (i = 0; i < (HUGE_PAGE * PAGE_SIZE / 4); i++) {
+// printf("%lx ", ptr0[i]);
if (ptr0[i] != 0x13131313) break;
}
if (i < (HUGE_PAGE * PAGE_SIZE / 4)) {
--
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