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Date: Tue, 21 Jun 2016 11:56:37 +0800
From: Yisen Zhuang <Yisen.Zhuang@...wei.com>
To: <davem@...emloft.net>, <yisen.zhuang@...wei.com>,
<salil.mehta@...wei.com>, <yankejian@...wei.com>
CC: <liguozhu@...wei.com>, <huangdaode@...ilicon.com>, <arnd@...db.de>,
<andriy.shevchenko@...ux.intel.com>, <andrew@...n.ch>,
<geliangtang@....com>, <ivecera@...hat.com>,
<fengguang.wu@...el.com>, <charles.chenxin@...wei.com>,
<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <linuxarm@...wei.com>
Subject: [PATCH net-next 17/19] net: hns: fix sbm default parameters config error
From: Daode Huang <huangdaode@...ilicon.com>
The default sbm config parameter leaves little buffer when there is heavy
traffic, which will cause packets drop. This patch changes them to make
enough buffers for handling packets.
Signed-off-by: Daode Huang <huangdaode@...ilicon.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@...wei.com>
---
drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c | 40 ++++++++++++++--------
drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h | 16 +++++++--
2 files changed, 39 insertions(+), 17 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
index 7f5c248..67e8e13 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
@@ -516,10 +516,10 @@ static void hns_dsafv2_sbm_bp_wl_cfg(struct dsaf_device *dsaf_dev)
o_sbm_bp_cfg = dsaf_read_dev(dsaf_dev, reg);
dsaf_set_field(o_sbm_bp_cfg,
DSAFV2_SBM_CFG3_SET_BUF_NUM_NO_PFC_M,
- DSAFV2_SBM_CFG3_SET_BUF_NUM_NO_PFC_S, 110);
+ DSAFV2_SBM_CFG3_SET_BUF_NUM_NO_PFC_S, 48);
dsaf_set_field(o_sbm_bp_cfg,
DSAFV2_SBM_CFG3_RESET_BUF_NUM_NO_PFC_M,
- DSAFV2_SBM_CFG3_RESET_BUF_NUM_NO_PFC_S, 160);
+ DSAFV2_SBM_CFG3_RESET_BUF_NUM_NO_PFC_S, 80);
dsaf_write_dev(dsaf_dev, reg, o_sbm_bp_cfg);
/* for no enable pfc mode */
@@ -527,29 +527,39 @@ static void hns_dsafv2_sbm_bp_wl_cfg(struct dsaf_device *dsaf_dev)
o_sbm_bp_cfg = dsaf_read_dev(dsaf_dev, reg);
dsaf_set_field(o_sbm_bp_cfg,
DSAFV2_SBM_CFG4_SET_BUF_NUM_NO_PFC_M,
- DSAFV2_SBM_CFG4_SET_BUF_NUM_NO_PFC_S, 128);
+ DSAFV2_SBM_CFG4_SET_BUF_NUM_NO_PFC_S, 192);
dsaf_set_field(o_sbm_bp_cfg,
DSAFV2_SBM_CFG4_RESET_BUF_NUM_NO_PFC_M,
- DSAFV2_SBM_CFG4_RESET_BUF_NUM_NO_PFC_S, 192);
+ DSAFV2_SBM_CFG4_RESET_BUF_NUM_NO_PFC_S, 240);
dsaf_write_dev(dsaf_dev, reg, o_sbm_bp_cfg);
}
/* PPE */
- reg = DSAF_SBM_BP_CFG_2_PPE_REG_0_REG + 0x80 * i;
- o_sbm_bp_cfg = dsaf_read_dev(dsaf_dev, reg);
- dsaf_set_field(o_sbm_bp_cfg, DSAFV2_SBM_CFG2_SET_BUF_NUM_M,
- DSAFV2_SBM_CFG2_SET_BUF_NUM_S, 10);
- dsaf_set_field(o_sbm_bp_cfg, DSAFV2_SBM_CFG2_RESET_BUF_NUM_M,
- DSAFV2_SBM_CFG2_RESET_BUF_NUM_S, 12);
- dsaf_write_dev(dsaf_dev, reg, o_sbm_bp_cfg);
+ for (i = 0; i < DSAFV2_SBM_PPE_CHN; i++) {
+ reg = DSAF_SBM_BP_CFG_2_PPE_REG_0_REG + 0x80 * i;
+ o_sbm_bp_cfg = dsaf_read_dev(dsaf_dev, reg);
+ dsaf_set_field(o_sbm_bp_cfg,
+ DSAFV2_SBM_CFG2_PPE_SET_BUF_NUM_M,
+ DSAFV2_SBM_CFG2_PPE_SET_BUF_NUM_S, 2);
+ dsaf_set_field(o_sbm_bp_cfg,
+ DSAFV2_SBM_CFG2_PPE_RESET_BUF_NUM_M,
+ DSAFV2_SBM_CFG2_PPE_RESET_BUF_NUM_S, 3);
+ dsaf_set_field(o_sbm_bp_cfg,
+ DSAFV2_SBM_CFG2_PPE_CFG_USEFUL_NUM_M,
+ DSAFV2_SBM_CFG2_PPE_CFG_USEFUL_NUM_S, 52);
+ dsaf_write_dev(dsaf_dev, reg, o_sbm_bp_cfg);
+ }
+
/* RoCEE */
for (i = 0; i < DASFV2_ROCEE_CRD_NUM; i++) {
reg = DSAFV2_SBM_BP_CFG_2_ROCEE_REG_0_REG + 0x80 * i;
o_sbm_bp_cfg = dsaf_read_dev(dsaf_dev, reg);
- dsaf_set_field(o_sbm_bp_cfg, DSAFV2_SBM_CFG2_SET_BUF_NUM_M,
- DSAFV2_SBM_CFG2_SET_BUF_NUM_S, 2);
- dsaf_set_field(o_sbm_bp_cfg, DSAFV2_SBM_CFG2_RESET_BUF_NUM_M,
- DSAFV2_SBM_CFG2_RESET_BUF_NUM_S, 4);
+ dsaf_set_field(o_sbm_bp_cfg,
+ DSAFV2_SBM_CFG2_ROCEE_SET_BUF_NUM_M,
+ DSAFV2_SBM_CFG2_ROCEE_SET_BUF_NUM_S, 2);
+ dsaf_set_field(o_sbm_bp_cfg,
+ DSAFV2_SBM_CFG2_ROCEE_RESET_BUF_NUM_M,
+ DSAFV2_SBM_CFG2_ROCEE_RESET_BUF_NUM_S, 4);
dsaf_write_dev(dsaf_dev, reg, o_sbm_bp_cfg);
}
}
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
index e35d0cb..235f744 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
@@ -32,7 +32,7 @@
#define DSAFV2_SBM_NUM 8
#define DSAFV2_SBM_XGE_CHN 6
#define DSAFV2_SBM_PPE_CHN 1
-#define DASFV2_ROCEE_CRD_NUM 8
+#define DASFV2_ROCEE_CRD_NUM 1
#define DSAF_VOQ_NUM DSAF_NODE_NUM
#define DSAF_INODE_NUM DSAF_NODE_NUM
@@ -178,7 +178,7 @@
#define DSAF_SBM_BP_CFG_2_XGE_REG_0_REG 0x200C
#define DSAF_SBM_BP_CFG_2_PPE_REG_0_REG 0x230C
#define DSAF_SBM_BP_CFG_2_ROCEE_REG_0_REG 0x260C
-#define DSAFV2_SBM_BP_CFG_2_ROCEE_REG_0_REG 0x238C
+#define DSAFV2_SBM_BP_CFG_2_ROCEE_REG_0_REG 0x238C
#define DSAF_SBM_FREE_CNT_0_0_REG 0x2010
#define DSAF_SBM_FREE_CNT_1_0_REG 0x2014
#define DSAF_SBM_BP_CNT_0_0_REG 0x2018
@@ -796,6 +796,18 @@
#define DSAFV2_SBM_CFG4_RESET_BUF_NUM_NO_PFC_S 9
#define DSAFV2_SBM_CFG4_RESET_BUF_NUM_NO_PFC_M (((1ULL << 9) - 1) << 9)
+#define DSAFV2_SBM_CFG2_ROCEE_SET_BUF_NUM_S 0
+#define DSAFV2_SBM_CFG2_ROCEE_SET_BUF_NUM_M (((1ULL << 8) - 1) << 0)
+#define DSAFV2_SBM_CFG2_ROCEE_RESET_BUF_NUM_S 8
+#define DSAFV2_SBM_CFG2_ROCEE_RESET_BUF_NUM_M (((1ULL << 8) - 1) << 8)
+
+#define DSAFV2_SBM_CFG2_PPE_SET_BUF_NUM_S (0)
+#define DSAFV2_SBM_CFG2_PPE_SET_BUF_NUM_M (((1ULL << 6) - 1) << 0)
+#define DSAFV2_SBM_CFG2_PPE_RESET_BUF_NUM_S (6)
+#define DSAFV2_SBM_CFG2_PPE_RESET_BUF_NUM_M (((1ULL << 6) - 1) << 6)
+#define DSAFV2_SBM_CFG2_PPE_CFG_USEFUL_NUM_S (12)
+#define DSAFV2_SBM_CFG2_PPE_CFG_USEFUL_NUM_M (((1ULL << 6) - 1) << 12)
+
#define DSAF_TBL_TCAM_ADDR_S 0
#define DSAF_TBL_TCAM_ADDR_M ((1ULL << 9) - 1)
--
1.9.1
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