Add warnings when writing global registers.
Signed-off-by: Beilei Xing <beilei.x...@intel.com>
Cc: sta...@dpdk.org
---
doc/guides/nics/i40e.rst | 12 ++++++++++++
drivers/net/i40e/i40e_ethdev.c | 15 +++++++++++++++
drivers/net/i40e/i40e_ethdev.h | 43 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 70 insertions(+)
diff --git a/doc/guides/nics/i40e.rst b/doc/guides/nics/i40e.rst
index 5780268..68a546b 100644
--- a/doc/guides/nics/i40e.rst
+++ b/doc/guides/nics/i40e.rst
@@ -459,3 +459,15 @@ Receive packets with Ethertype 0x88A8
Due to the FW limitation, PF can receive packets with Ethertype 0x88A8
only when floating VEB is disabled.
+
+Global configuration warning
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+I40E PMD will set some global registers to enable some function or set some
+configure. Then when using different ports of the same NIC with Linux kernel
+and DPDK, the port with Linux kernel will be impacted by the port with DPDK.
+For example, register I40E_GL_SWT_L2TAGCTRL is used to control L2 tag, i40e
+PMD uses I40E_GL_SWT_L2TAGCTRL to set vlan TPID. If setting TPID in port A
+with DPDK, then the configuration will also impact port B in the NIC with
+kernel driver, which don't want to use the TPID.
+So PMD reports warning to clarify what is changed by writing global register.
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 0835c2d..44821f2 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -738,6 +738,7 @@ static inline void i40e_GLQF_reg_init(struct i40e_hw *hw)
I40E_WRITE_REG(hw, I40E_GLQF_ORT(33), 0x000000E0);
I40E_WRITE_REG(hw, I40E_GLQF_ORT(34), 0x000000E3);
I40E_WRITE_REG(hw, I40E_GLQF_ORT(35), 0x000000E6);
+ i40e_global_cfg_warning(I40E_WARNING_ENA_FLX_PLD);
/*
* Initialize registers for parsing packet type of QinQ
@@ -747,6 +748,7 @@ static inline void i40e_GLQF_reg_init(struct i40e_hw *hw)
*/
I40E_WRITE_REG(hw, I40E_GLQF_ORT(40), 0x00000029);
I40E_WRITE_REG(hw, I40E_GLQF_PIT(9), 0x00009420);
+ i40e_global_cfg_warning(I40E_WARNING_QINQ_PARSER);
}
#define I40E_FLOW_CONTROL_ETHERTYPE 0x8808
@@ -2800,6 +2802,8 @@ i40e_vlan_tpid_set(struct rte_eth_dev *dev,
PMD_DRV_LOG(DEBUG, "Debug write 0x%08"PRIx64" to "
"I40E_GL_SWT_L2TAGCTRL[%d]", reg_w, reg_id);
+ i40e_global_cfg_warning(I40E_WARNING_TPID);
+
return ret;
}
@@ -3038,6 +3042,7 @@ i40e_flow_ctrl_set(struct rte_eth_dev *dev, struct
rte_eth_fc_conf *fc_conf)
I40E_WRITE_REG(hw, I40E_GLRPB_GLW,
pf->fc_conf.low_water[I40E_MAX_TRAFFIC_CLASS]
<< I40E_KILOSHIFT);
+ i40e_global_cfg_warning(I40E_WARNING_FLOW_CTL);
I40E_WRITE_FLUSH(hw);
@@ -6875,6 +6880,7 @@ i40e_dev_set_gre_key_len(struct i40e_hw *hw, uint8_t len)
reg, NULL);
if (ret != 0)
return ret;
+ i40e_global_cfg_warning(I40E_WARNING_GRE_KEY_LEN);
} else {
ret = 0;
}
@@ -7154,6 +7160,7 @@ i40e_set_hash_filter_global_config(struct i40e_hw *hw,
} else {
i40e_write_rx_ctl(hw, I40E_GLQF_HSYM(pctype), reg);
}
+ i40e_global_cfg_warning(I40E_WARNING_HSYM);
}
reg = i40e_read_rx_ctl(hw, I40E_GLQF_CTL);
@@ -7178,6 +7185,7 @@ i40e_set_hash_filter_global_config(struct i40e_hw *hw,
goto out;
i40e_write_rx_ctl(hw, I40E_GLQF_CTL, reg);
+ i40e_global_cfg_warning(I40E_WARNING_QF_CTL);
out:
I40E_WRITE_FLUSH(hw);
@@ -7848,6 +7856,10 @@ i40e_filter_input_set_init(struct i40e_pf *pf)
pf->hash_input_set[pctype] = input_set;
pf->fdir.input_set[pctype] = input_set;
}
+
+ i40e_global_cfg_warning(I40E_WARNING_HASH_INSET);
+ i40e_global_cfg_warning(I40E_WARNING_FD_MSK);
+ i40e_global_cfg_warning(I40E_WARNING_HASH_MSK);
}
int
@@ -7913,6 +7925,7 @@ i40e_hash_filter_inset_select(struct i40e_hw *hw,
i40e_check_write_reg(hw, I40E_GLQF_HASH_INSET(1, pctype),
(uint32_t)((inset_reg >>
I40E_32_BIT_WIDTH) & UINT32_MAX));
+ i40e_global_cfg_warning(I40E_WARNING_HASH_INSET);
for (i = 0; i < num; i++)
i40e_check_write_reg(hw, I40E_GLQF_HASH_MSK(i, pctype),
@@ -7921,6 +7934,7 @@ i40e_hash_filter_inset_select(struct i40e_hw *hw,
for (i = num; i < I40E_INSET_MASK_NUM_REG; i++)
i40e_check_write_reg(hw, I40E_GLQF_HASH_MSK(i, pctype),
0);
+ i40e_global_cfg_warning(I40E_WARNING_HASH_MSK);
I40E_WRITE_FLUSH(hw);
pf->hash_input_set[pctype] = input_set;
@@ -7999,6 +8013,7 @@ i40e_fdir_filter_inset_select(struct i40e_pf *pf,
for (i = num; i < I40E_INSET_MASK_NUM_REG; i++)
i40e_check_write_reg(hw, I40E_GLQF_FD_MSK(i, pctype),
0);
+ i40e_global_cfg_warning(I40E_WARNING_FD_MSK);
I40E_WRITE_FLUSH(hw);
pf->fdir.input_set[pctype] = input_set;
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index f283319..1d813ef 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -569,6 +569,22 @@ struct i40e_adapter {
struct rte_timecounter tx_tstamp_tc;
};
+enum I40E_WARNING_IDX {
+ I40E_WARNING_DIS_FLX_PLD,
+ I40E_WARNING_ENA_FLX_PLD,
+ I40E_WARNING_QINQ_PARSER,
+ I40E_WARNING_QINQ_CLOUD_FILTER,
+ I40E_WARNING_TPID,
+ I40E_WARNING_FLOW_CTL,
+ I40E_WARNING_GRE_KEY_LEN,
+ I40E_WARNING_QF_CTL,
+ I40E_WARNING_HASH_INSET,
+ I40E_WARNING_HSYM,
+ I40E_WARNING_HASH_MSK,
+ I40E_WARNING_FD_MSK,
+ I40E_WARNING_RPL_CLD_FILTER,
+};
+
int i40e_dev_switch_queues(struct i40e_pf *pf, bool on);
int i40e_vsi_release(struct i40e_vsi *vsi);
struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf,
@@ -703,6 +719,33 @@ i40e_calc_itr_interval(int16_t interval)
return interval / 2;
}
+static inline void
+i40e_global_cfg_warning(enum I40E_WARNING_IDX idx)
+{
+ const char *warning;
+ static const char *const warning_list[] = {
+ [I40E_WARNING_DIS_FLX_PLD] = "disable FDIR flexible payload",
+ [I40E_WARNING_ENA_FLX_PLD] = "enable FDIR flexible payload",
+ [I40E_WARNING_QINQ_PARSER] = "support QinQ parser",
+ [I40E_WARNING_QINQ_CLOUD_FILTER] = "support QinQ cloud filter",
+ [I40E_WARNING_TPID] = "support TPID configuration",
+ [I40E_WARNING_FLOW_CTL] = "configure water marker",
+ [I40E_WARNING_GRE_KEY_LEN] = "support GRE key length setting",
+ [I40E_WARNING_QF_CTL] = "support hash function setting",
+ [I40E_WARNING_HASH_INSET] = "configure hash input set",
+ [I40E_WARNING_HSYM] = "set symmetric hash",
+ [I40E_WARNING_HASH_MSK] = "configure hash mask",
+ [I40E_WARNING_FD_MSK] = "configure fdir mask",
+ [I40E_WARNING_RPL_CLD_FILTER] = "replace cloud filter",
+ };
+
+ warning = warning_list[idx];
+
+ RTE_LOG(WARNING, PMD,
+ "Global register is changed during %s\n",
+ warning);
+}
+
#define I40E_VALID_FLOW(flow_type) \
((flow_type) == RTE_ETH_FLOW_FRAG_IPV4 || \
(flow_type) == RTE_ETH_FLOW_NONFRAG_IPV4_TCP || \
--
2.5.5
