From: Beilei Xing <beilei.xing@intel.com> To: qi.z.zhang@intel.com, jingjing.wu@intel.com Cc: dev@dpdk.org, stable@dpdk.org Subject: [dpdk-dev] [PATCH v2] net/i40e: fix X710 Rx issue after reading some registers Date: Thu, 15 Nov 2018 11:17:02 +0800 Message-ID: <1542251822-70963-1-git-send-email-beilei.xing@intel.com> (raw) In-Reply-To: <1542168638-59416-1-git-send-email-beilei.xing@intel.com> There's an issue that X710 can't receive any packet after reading some special registers. That's because these registers are only valid for X722, read access for non-X722 will cause ECC error. Fixes: d9efd0136ac1 ("i40e: add EEPROM and registers dumping") Cc: stable@dpdk.org Signed-off-by: Beilei Xing <beilei.xing@intel.com> --- v2 change: - Add mac type as parameter in i40e_valid_regs function. drivers/net/i40e/i40e_ethdev.c | 33 +++++++++++++++++++++++++++++++-- 1 file changed, 31 insertions(+), 2 deletions(-) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 1c77906..bf67a2b 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -11609,6 +11609,32 @@ i40e_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id) return 0; } +/** + * This function is used to check if the register is valid. + * Below is the valid registers list for X722 only: + * 0x2b800--0x2bb00 + * 0x38700--0x38a00 + * 0x3d800--0x3db00 + * 0x208e00--0x209000 + * 0x20be00--0x20c000 + * 0x263c00--0x264000 + * 0x265c00--0x266000 + */ +static inline int i40e_valid_regs(enum i40e_mac_type type, uint32_t reg_offset) +{ + if ((type != I40E_MAC_X722) && + ((reg_offset >= 0x2b800 && reg_offset <= 0x2bb00) || + (reg_offset >= 0x38700 && reg_offset <= 0x38a00) || + (reg_offset >= 0x3d800 && reg_offset <= 0x3db00) || + (reg_offset >= 0x208e00 && reg_offset <= 0x209000) || + (reg_offset >= 0x20be00 && reg_offset <= 0x20c000) || + (reg_offset >= 0x263c00 && reg_offset <= 0x264000) || + (reg_offset >= 0x265c00 && reg_offset <= 0x266000))) + return 0; + else + return 1; +} + static int i40e_get_regs(struct rte_eth_dev *dev, struct rte_dev_reg_info *regs) { @@ -11650,8 +11676,11 @@ static int i40e_get_regs(struct rte_eth_dev *dev, reg_offset = arr_idx * reg_info->stride1 + arr_idx2 * reg_info->stride2; reg_offset += reg_info->base_addr; - ptr_data[reg_offset >> 2] = - I40E_READ_REG(hw, reg_offset); + if (!i40e_valid_regs(hw->mac.type, reg_offset)) + ptr_data[reg_offset >> 2] = 0; + else + ptr_data[reg_offset >> 2] = + I40E_READ_REG(hw, reg_offset); } } -- 2.5.5
next prev parent reply other threads:[~2018-11-15 3:15 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-11-14 4:10 [dpdk-dev] [PATCH] " Beilei Xing 2018-11-14 20:16 ` Zhang, Qi Z 2018-11-15 3:17 ` Beilei Xing [this message] 2018-11-15 18:11 ` [dpdk-dev] [PATCH v2] " Zhang, Qi Z
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