+/**
+ * Function takes value from first IBUF status register.
+ * Values in IBUF and OBUF should be same.
+ *
+ * @param internals
+ * Pointer to device private structure.
+ * @return
+ * Link speed constant.
+ */
+static inline enum szedata2_link_speed
+get_link_speed(const struct pmd_internals *internals)
+{
+ const volatile struct szedata2_ibuf *ibuf =
+ ibuf_ptr_by_index(internals->pci_rsc, 0);
+ uint32_t speed = (szedata2_read32(&ibuf->ibuf_st) & 0x70) >> 4;
+ switch (speed) {
+ case 0x03:
+ return SZEDATA2_LINK_SPEED_10G;
+ case 0x04:
+ return SZEDATA2_LINK_SPEED_40G;
+ case 0x05:
+ return SZEDATA2_LINK_SPEED_100G;
+ default:
+ return SZEDATA2_LINK_SPEED_DEFAULT;
+ }
+}
+