mlx4: avoid init errors when kernel modules are not loaded

[dpdk.git] / lib / librte_pmd_i40e / i40e / i40e_common.c

diff --git a/lib/librte_pmd_i40e/i40e/i40e_common.c b/lib/librte_pmd_i40e/i40e/i40e_common.c
index 532ccaa..ffaa777 100644 (file)
--- a/lib/librte_pmd_i40e/i40e/i40e_common.c
+++ b/lib/librte_pmd_i40e/i40e/i40e_common.c
@@ -89,13 +89,15 @@ STATIC enum i40e_status_code i40e_set_mac_type(struct i40e_hw *hw)
  * @mask: debug mask
  * @desc: pointer to admin queue descriptor
  * @buffer: pointer to command buffer
+ * @buf_len: max length of buffer
  *
  * Dumps debug log about adminq command with descriptor contents.
  **/
 void i40e_debug_aq(struct i40e_hw *hw, enum i40e_debug_mask mask, void *desc,
-                  void *buffer)
+                  void *buffer, u16 buf_len)
 {
        struct i40e_aq_desc *aq_desc = (struct i40e_aq_desc *)desc;
+       u16 len = LE16_TO_CPU(aq_desc->datalen);
        u8 *aq_buffer = (u8 *)buffer;
        u32 data[4];
        u32 i = 0;
@@ -119,7 +121,9 @@ void i40e_debug_aq(struct i40e_hw *hw, enum i40e_debug_mask mask, void *desc,
        if ((buffer != NULL) && (aq_desc->datalen != 0)) {
                i40e_memset(data, 0, sizeof(data), I40E_NONDMA_MEM);
                i40e_debug(hw, mask, "AQ CMD Buffer:\n");
-               for (i = 0; i < LE16_TO_CPU(aq_desc->datalen); i++) {
+               if (buf_len < len)
+                       len = buf_len;
+               for (i = 0; i < len; i++) {
                        data[((i % 16) / 4)] |=
                                ((u32)aq_buffer[i]) << (8 * (i % 4));
                        if ((i % 16) == 15) {
@@ -2353,6 +2357,35 @@ enum i40e_status_code i40e_aq_send_msg_to_vf(struct i40e_hw *hw, u16 vfid,
        return status;
 }
 
+/**
+ * i40e_aq_debug_write_register
+ * @hw: pointer to the hw struct
+ * @reg_addr: register address
+ * @reg_val: register value
+ * @cmd_details: pointer to command details structure or NULL
+ *
+ * Write to a register using the admin queue commands
+ **/
+enum i40e_status_code i40e_aq_debug_write_register(struct i40e_hw *hw,
+                               u32 reg_addr, u64 reg_val,
+                               struct i40e_asq_cmd_details *cmd_details)
+{
+       struct i40e_aq_desc desc;
+       struct i40e_aqc_debug_reg_read_write *cmd =
+               (struct i40e_aqc_debug_reg_read_write *)&desc.params.raw;
+       enum i40e_status_code status;
+
+       i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_debug_write_reg);
+
+       cmd->address = CPU_TO_LE32(reg_addr);
+       cmd->value_high = CPU_TO_LE32((u32)(reg_val >> 32));
+       cmd->value_low = CPU_TO_LE32((u32)(reg_val & 0xFFFFFFFF));
+
+       status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
+
+       return status;
+}
+
 /**
  * i40e_aq_get_hmc_resource_profile
  * @hw: pointer to the hw struct