Merge tag 'loongarch-kvm-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD

LoongArch KVM changes for v6.18

1. Add PTW feature detection on new hardware.
2. Add sign extension with kernel MMIO/IOCSR emulation.
3. Improve in-kernel IPI emulation.
4. Improve in-kernel PCH-PIC emulation.
5. Move kvm_iocsr tracepoint out of generic code.

1 files changed, 34 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 270e7e8cf9cf..59f5c1e810eb 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -1190,6 +1190,40 @@ int i40e_set_fc(struct i40e_hw *hw, u8 *aq_failures,
 }
 
 /**
+ * i40e_aq_set_mac_config - Configure MAC settings
+ * @hw: pointer to the hw struct
+ * @max_frame_size: Maximum Frame Size to be supported by the port
+ * @cmd_details: pointer to command details structure or NULL
+ *
+ * Set MAC configuration (0x0603). Note that max_frame_size must be greater
+ * than zero.
+ *
+ * Return: 0 on success, or a negative error code on failure.
+ */
+int i40e_aq_set_mac_config(struct i40e_hw *hw, u16 max_frame_size,
+			   struct i40e_asq_cmd_details *cmd_details)
+{
+	struct i40e_aq_set_mac_config *cmd;
+	struct libie_aq_desc desc;
+
+	cmd = libie_aq_raw(&desc);
+
+	if (max_frame_size == 0)
+		return -EINVAL;
+
+	i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_set_mac_config);
+
+	cmd->max_frame_size = cpu_to_le16(max_frame_size);
+	cmd->params = I40E_AQ_SET_MAC_CONFIG_CRC_EN;
+
+#define I40E_AQ_SET_MAC_CONFIG_FC_DEFAULT_THRESHOLD	0x7FFF
+	cmd->fc_refresh_threshold =
+		cpu_to_le16(I40E_AQ_SET_MAC_CONFIG_FC_DEFAULT_THRESHOLD);
+
+	return i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
+}
+
+/**
  * i40e_aq_clear_pxe_mode
  * @hw: pointer to the hw struct
  * @cmd_details: pointer to command details structure or NULL