[PATCH net-next 18/19] net: hns: change the default coalesce usecs

[Yisen Zhuang]

From: Daode Huang 

The default coalesce timeout is 3us, which is will cause CPU
usage is too high. This patch change it to 50us in order to reduce
CPU usage and the value makes sure network latency also meets requirement.

Signed-off-by: Daode Huang 
Signed-off-by: Yisen Zhuang 
---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c | 2 +-
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
index 3ce2409..ef11077 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
@@ -540,7 +540,7 @@ int hns_rcb_set_coalesce_usecs(
}
if (timeout > HNS_RCB_MAX_COALESCED_USECS) {
dev_err(rcb_common->dsaf_dev->dev,
-   "error: not support coalesce %dus!\n", timeout);
+   "error: coalesce_usecs setting supports 0~1023us\n");
return -EINVAL;
}
hns_rcb_set_port_timeout(rcb_common, port_idx, timeout);
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
index bd54dac..99b4e1b 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
@@ -40,7 +40,7 @@ struct rcb_common_cb;
 #define HNS_RCB_DEF_COALESCED_FRAMES   50
 #define HNS_RCB_CLK_FREQ_MHZ   350
 #define HNS_RCB_MAX_COALESCED_USECS0x3ff
-#define HNS_RCB_DEF_COALESCED_USECS3
+#define HNS_RCB_DEF_COALESCED_USECS50
 
 #define HNS_RCB_COMMON_ENDIAN  1
 
-- 
1.9.1

[PATCH net-next 18/19] net: hns: change the default coalesce usecs

[Yisen Zhuang]

From: Daode Huang 

The default coalesce timeout is 3us, which is will cause CPU
usage is too high. This patch change it to 50us in order to reduce
CPU usage and the value makes sure network latency also meets requirement.

Signed-off-by: Daode Huang 
Signed-off-by: Yisen Zhuang 
---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c | 2 +-
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
index 3ce2409..ef11077 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
@@ -540,7 +540,7 @@ int hns_rcb_set_coalesce_usecs(
}
if (timeout > HNS_RCB_MAX_COALESCED_USECS) {
dev_err(rcb_common->dsaf_dev->dev,
-   "error: not support coalesce %dus!\n", timeout);
+   "error: coalesce_usecs setting supports 0~1023us\n");
return -EINVAL;
}
hns_rcb_set_port_timeout(rcb_common, port_idx, timeout);
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
index bd54dac..99b4e1b 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
@@ -40,7 +40,7 @@ struct rcb_common_cb;
 #define HNS_RCB_DEF_COALESCED_FRAMES   50
 #define HNS_RCB_CLK_FREQ_MHZ   350
 #define HNS_RCB_MAX_COALESCED_USECS0x3ff
-#define HNS_RCB_DEF_COALESCED_USECS3
+#define HNS_RCB_DEF_COALESCED_USECS50
 
 #define HNS_RCB_COMMON_ENDIAN  1
 
-- 
1.9.1