From 918f618f564e208dd181d8ac7525694ccf4bc097 Mon Sep 17 00:00:00 2001 From: huangdaode Date: Mon, 18 Jan 2016 17:24:16 +0800 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c | 13 +++++++++++-- drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h | 3 +++ drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h | 5 +++++ 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 -- 2.30.2