+ /* Check if the firmware provides head-of-line blocking counters */
+ if (CAP_FLAGS2(req, RXDP_HLB_IDLE))
+ encp->enc_hlb_counters = B_TRUE;
+ else
+ encp->enc_hlb_counters = B_FALSE;
+
+#if EFSYS_OPT_RX_SCALE
+ if (CAP_FLAGS1(req, RX_RSS_LIMITED)) {
+ /* Only one exclusive RSS context is available per port. */
+ encp->enc_rx_scale_max_exclusive_contexts = 1;
+
+ switch (enp->en_family) {
+ case EFX_FAMILY_MEDFORD2:
+ encp->enc_rx_scale_hash_alg_mask =
+ (1U << EFX_RX_HASHALG_TOEPLITZ);
+ break;
+
+ case EFX_FAMILY_MEDFORD:
+ case EFX_FAMILY_HUNTINGTON:
+ /*
+ * Packed stream firmware variant maintains a
+ * non-standard algorithm for hash computation.
+ * It implies explicit XORing together
+ * source + destination IP addresses (or last
+ * four bytes in the case of IPv6) and using the
+ * resulting value as the input to a Toeplitz hash.
+ */
+ encp->enc_rx_scale_hash_alg_mask =
+ (1U << EFX_RX_HASHALG_PACKED_STREAM);
+ break;
+
+ default:
+ rc = EINVAL;
+ goto fail5;
+ }
+
+ /* Port numbers cannot contribute to the hash value */
+ encp->enc_rx_scale_l4_hash_supported = B_FALSE;
+ } else {
+ /*
+ * Maximum number of exclusive RSS contexts.
+ * EF10 hardware supports 64 in total, but 6 are reserved
+ * for shared contexts. They are a global resource so
+ * not all may be available.
+ */
+ encp->enc_rx_scale_max_exclusive_contexts = 64 - 6;
+
+ encp->enc_rx_scale_hash_alg_mask =
+ (1U << EFX_RX_HASHALG_TOEPLITZ);
+
+ /*
+ * It is possible to use port numbers as
+ * the input data for hash computation.
+ */
+ encp->enc_rx_scale_l4_hash_supported = B_TRUE;
+ }
+#endif /* EFSYS_OPT_RX_SCALE */
+
+ /* Check if the firmware supports "FLAG" and "MARK" filter actions */
+ if (CAP_FLAGS2(req, FILTER_ACTION_FLAG))
+ encp->enc_filter_action_flag_supported = B_TRUE;
+ else
+ encp->enc_filter_action_flag_supported = B_FALSE;
+
+ if (CAP_FLAGS2(req, FILTER_ACTION_MARK))
+ encp->enc_filter_action_mark_supported = B_TRUE;
+ else
+ encp->enc_filter_action_mark_supported = B_FALSE;
+
+ /* Get maximum supported value for "MARK" filter action */
+ if (req.emr_out_length_used >= MC_CMD_GET_CAPABILITIES_V5_OUT_LEN)
+ encp->enc_filter_action_mark_max = MCDI_OUT_DWORD(req,
+ GET_CAPABILITIES_V5_OUT_FILTER_ACTION_MARK_MAX);
+ else
+ encp->enc_filter_action_mark_max = 0;
+