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authorhuangdaode <huangdaode@hisilicon.com>2016-01-18 17:24:16 +0800
committerDavid S. Miller <davem@davemloft.net>2016-01-18 11:52:37 -0500
commit918f618f564e208dd181d8ac7525694ccf4bc097 (patch)
treef3855c3a99c0183d68f0e844c9b8b3cdd0b855c8 /drivers
parent23195ec00503c6c29daea5b6c780787c0b5f1bf3 (diff)
downloadlinux-918f618f564e208dd181d8ac7525694ccf4bc097.tar.bz2
net: hns: bug fix about hisilicon TSO BD mode
The current upstreaming code fails to set the tso_mode register when initilizes, when processes large size packets, the default 4 bd is not enough, so this patch initilizes it and set the default value to 8 bds Signed-off-by: Daode Huang <huangdaode@hisilicon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c13
-rw-r--r--drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h3
-rw-r--r--drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h5
3 files changed, 19 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 d2263c72bd8a..12188807468c 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
@@ -369,8 +369,17 @@ int hns_rcb_common_init_hw(struct rcb_common_cb *rcb_common)
dsaf_write_dev(rcb_common, RCB_COM_CFG_ENDIAN_REG,
HNS_RCB_COMMON_ENDIAN);
- dsaf_write_dev(rcb_common, RCB_COM_CFG_FNA_REG, 0x0);
- dsaf_write_dev(rcb_common, RCB_COM_CFG_FA_REG, 0x1);
+ if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver)) {
+ dsaf_write_dev(rcb_common, RCB_COM_CFG_FNA_REG, 0x0);
+ dsaf_write_dev(rcb_common, RCB_COM_CFG_FA_REG, 0x1);
+ } else {
+ dsaf_set_dev_bit(rcb_common, RCBV2_COM_CFG_USER_REG,
+ RCB_COM_CFG_FNA_B, false);
+ dsaf_set_dev_bit(rcb_common, RCBV2_COM_CFG_USER_REG,
+ RCB_COM_CFG_FA_B, true);
+ dsaf_set_dev_bit(rcb_common, RCBV2_COM_CFG_TSO_MODE_REG,
+ RCB_COM_TSO_MODE_B, HNS_TSO_MODE_8BD_32K);
+ }
return 0;
}
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
index 29041b18741a..81fe9f849973 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
@@ -54,6 +54,9 @@ struct rcb_common_cb;
#define HNS_DUMP_REG_NUM 500
#define HNS_STATIC_REG_NUM 12
+#define HNS_TSO_MODE_8BD_32K 1
+#define HNS_TSO_MDOE_4BD_16K 0
+
enum rcb_int_flag {
RCB_INT_FLAG_TX = 0x1,
RCB_INT_FLAG_RX = (0x1 << 1),
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
index 5d1b746e141d..f0c4f9b09d5b 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
@@ -363,6 +363,8 @@
#define RCB_COM_CFG_FA_REG 0x3C
#define RCB_COM_CFG_PKT_TC_BP_REG 0x40
#define RCB_COM_CFG_PPE_TNL_CLKEN_REG 0x44
+#define RCBV2_COM_CFG_USER_REG 0x30
+#define RCBV2_COM_CFG_TSO_MODE_REG 0x50
#define RCB_COM_INTMSK_TX_PKT_REG 0x3A0
#define RCB_COM_RINT_TX_PKT_REG 0x3A8
@@ -860,6 +862,9 @@
#define PPE_COMMON_CNT_CLR_CE_B 0
#define PPE_COMMON_CNT_CLR_SNAP_EN_B 1
+#define RCB_COM_TSO_MODE_B 0
+#define RCB_COM_CFG_FNA_B 1
+#define RCB_COM_CFG_FA_B 0
#define GMAC_DUPLEX_TYPE_B 0