/* SPDX-License-Identifier: BSD-3-Clause
*
- * Copyright(c) 2019-2020 Xilinx, Inc.
+ * Copyright(c) 2019-2021 Xilinx, Inc.
* Copyright(c) 2012-2019 Solarflare Communications Inc.
*/
req.emr_out_length = MC_CMD_GET_RXDP_CONFIG_OUT_LEN;
efx_mcdi_execute(enp, &req);
+
if (req.emr_rc != 0) {
rc = req.emr_rc;
goto fail1;
}
+ if (req.emr_out_length_used < MC_CMD_GET_RXDP_CONFIG_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
if (MCDI_OUT_DWORD_FIELD(req, GET_RXDP_CONFIG_OUT_DATA,
GET_RXDP_CONFIG_OUT_PAD_HOST_DMA) == 0) {
/* RX DMA end padding is disabled */
break;
default:
rc = ENOTSUP;
- goto fail2;
+ goto fail3;
}
}
return (0);
+fail3:
+ EFSYS_PROBE(fail3);
fail2:
EFSYS_PROBE(fail2);
fail1:
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
efx_mcdi_req_t req;
EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_CAPABILITIES_IN_LEN,
- MC_CMD_GET_CAPABILITIES_V5_OUT_LEN);
+ MC_CMD_GET_CAPABILITIES_V7_OUT_LEN);
efx_rc_t rc;
req.emr_cmd = MC_CMD_GET_CAPABILITIES;
req.emr_in_buf = payload;
req.emr_in_length = MC_CMD_GET_CAPABILITIES_IN_LEN;
req.emr_out_buf = payload;
- req.emr_out_length = MC_CMD_GET_CAPABILITIES_V5_OUT_LEN;
+ req.emr_out_length = MC_CMD_GET_CAPABILITIES_V7_OUT_LEN;
efx_mcdi_execute_quiet(enp, &req);
(MCDI_OUT_DWORD((_req), GET_CAPABILITIES_V2_OUT_FLAGS2) & \
(1u << (MC_CMD_GET_CAPABILITIES_V2_OUT_ ## _flag ## _LBN))))
+#define CAP_FLAGS3(_req, _flag) \
+ (((_req).emr_out_length_used >= MC_CMD_GET_CAPABILITIES_V7_OUT_LEN) && \
+ (MCDI_OUT_DWORD((_req), GET_CAPABILITIES_V7_OUT_FLAGS3) & \
+ (1u << (MC_CMD_GET_CAPABILITIES_V7_OUT_ ## _flag ## _LBN))))
+
/* Check if RXDP firmware inserts 14 byte prefix */
if (CAP_FLAGS1(req, RX_PREFIX_LEN_14))
encp->enc_rx_prefix_size = 14;
else
encp->enc_rx_disable_scatter_supported = B_FALSE;
+ /* No limit on maximum number of Rx scatter elements per packet. */
+ encp->enc_rx_scatter_max = -1;
+
/* Check if the firmware supports packed stream mode */
if (CAP_FLAGS1(req, RX_PACKED_STREAM))
encp->enc_rx_packed_stream_supported = B_TRUE;
else
encp->enc_init_evq_v2_supported = B_FALSE;
+ /*
+ * Check if firmware supports extended width event queues, which have
+ * a different event descriptor layout.
+ */
+ if (CAP_FLAGS3(req, EXTENDED_WIDTH_EVQS_SUPPORTED))
+ encp->enc_init_evq_extended_width_supported = B_TRUE;
+ else
+ encp->enc_init_evq_extended_width_supported = B_FALSE;
+
/*
* Check if the NO_CONT_EV mode for RX events is supported.
*/
else
encp->enc_filter_action_mark_max = 0;
+#if EFSYS_OPT_MAE
+ /*
+ * Check support for EF100 Match Action Engine (MAE).
+ * MAE hardware is present on Riverhead boards (from R2),
+ * and on Keystone, and requires support in firmware.
+ *
+ * MAE control operations require MAE control privilege,
+ * which is not available for VFs.
+ *
+ * Privileges can change dynamically at runtime: we assume
+ * MAE support requires the privilege is granted initially,
+ * and ignore later dynamic changes.
+ */
+ if (CAP_FLAGS3(req, MAE_SUPPORTED)) {
+ encp->enc_mae_supported = B_TRUE;
+ if (EFX_MCDI_HAVE_PRIVILEGE(encp->enc_privilege_mask, MAE))
+ encp->enc_mae_admin = B_TRUE;
+ else
+ encp->enc_mae_admin = B_FALSE;
+ } else {
+ encp->enc_mae_supported = B_FALSE;
+ encp->enc_mae_admin = B_FALSE;
+ }
+
+ /*
+ * Check support for MAE action set v2 features.
+ * These provide support for packet edits.
+ */
+ if (CAP_FLAGS3(req, MAE_ACTION_SET_ALLOC_V2_SUPPORTED))
+ encp->enc_mae_aset_v2_supported = B_TRUE;
+ else
+ encp->enc_mae_aset_v2_supported = B_FALSE;
+#else
+ encp->enc_mae_supported = B_FALSE;
+ encp->enc_mae_admin = B_FALSE;
+#endif /* EFSYS_OPT_MAE */
+
#undef CAP_FLAGS1
#undef CAP_FLAGS2
+#undef CAP_FLAGS3
return (0);
return (rc);
}
+static __checkReturn efx_rc_t
+efx_mcdi_get_nic_addr_caps(
+ __in efx_nic_t *enp)
+{
+ efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
+ uint32_t mapping_type;
+ efx_rc_t rc;
+
+ rc = efx_mcdi_get_nic_addr_info(enp, &mapping_type);
+ if (rc != 0) {
+ if (rc == ENOTSUP) {
+ encp->enc_dma_mapping = EFX_NIC_DMA_MAPPING_FLAT;
+ goto out;
+ }
+ goto fail1;
+ }
+
+ switch (mapping_type) {
+ case MC_CMD_GET_DESC_ADDR_INFO_OUT_MAPPING_FLAT:
+ encp->enc_dma_mapping = EFX_NIC_DMA_MAPPING_FLAT;
+ break;
+ case MC_CMD_GET_DESC_ADDR_INFO_OUT_MAPPING_REGIONED:
+ encp->enc_dma_mapping = EFX_NIC_DMA_MAPPING_REGIONED;
+ rc = efx_mcdi_get_nic_addr_regions(enp,
+ &enp->en_dma.end_u.endu_region_info);
+ if (rc != 0)
+ goto fail2;
+ break;
+ default:
+ goto fail3;
+ }
+
+out:
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
__checkReturn efx_rc_t
efx_mcdi_nic_board_cfg(
__in efx_nic_t *enp)
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
ef10_link_state_t els;
efx_port_t *epp = &(enp->en_port);
+ efx_pcie_interface_t intf;
uint32_t board_type = 0;
uint32_t base, nvec;
uint32_t port;
* - PCIe PF: pf = PF number, vf = 0xffff.
* - PCIe VF: pf = parent PF, vf = VF number.
*/
- if ((rc = efx_mcdi_get_function_info(enp, &pf, &vf)) != 0)
+ if ((rc = efx_mcdi_get_function_info(enp, &pf, &vf, &intf)) != 0)
goto fail3;
encp->enc_pf = pf;
encp->enc_vf = vf;
+ encp->enc_intf = intf;
if ((rc = ef10_mcdi_get_pf_count(enp, &encp->enc_hw_pf_count)) != 0)
goto fail4;
EFX_MAC_ADDR_COPY(encp->enc_mac_addr, mac_addr);
+ /*
+ * Get the current privilege mask. Note that this may be modified
+ * dynamically, so for most cases the value is informational only.
+ * If the privilege being discovered can't be granted dynamically,
+ * it's fine to rely on the value. In all other cases, DO NOT use
+ * the privilege mask to check for sufficient privileges, as that
+ * can result in time-of-check/time-of-use bugs.
+ */
+ if ((rc = ef10_get_privilege_mask(enp, &mask)) != 0)
+ goto fail6;
+ encp->enc_privilege_mask = mask;
+
/* Board configuration (legacy) */
rc = efx_mcdi_get_board_cfg(enp, &board_type, NULL, NULL);
if (rc != 0) {
if (rc == EACCES)
board_type = 0;
else
- goto fail6;
+ goto fail7;
}
encp->enc_board_type = board_type;
/* Fill out fields in enp->en_port and enp->en_nic_cfg from MCDI */
if ((rc = efx_mcdi_get_phy_cfg(enp)) != 0)
- goto fail7;
+ goto fail8;
/*
* Firmware with support for *_FEC capability bits does not
/* Obtain the default PHY advertised capabilities */
if ((rc = ef10_phy_get_link(enp, &els)) != 0)
- goto fail8;
+ goto fail9;
epp->ep_default_adv_cap_mask = els.epls.epls_adv_cap_mask;
epp->ep_adv_cap_mask = els.epls.epls_adv_cap_mask;
/* Check capabilities of running datapath firmware */
if ((rc = ef10_get_datapath_caps(enp)) != 0)
- goto fail9;
+ goto fail10;
/* Get interrupt vector limits */
if ((rc = efx_mcdi_get_vector_cfg(enp, &base, &nvec, NULL)) != 0) {
if (EFX_PCI_FUNCTION_IS_PF(encp))
- goto fail10;
+ goto fail11;
/* Ignore error (cannot query vector limits from a VF). */
base = 0;
encp->enc_intr_vec_base = base;
encp->enc_intr_limit = nvec;
- /*
- * Get the current privilege mask. Note that this may be modified
- * dynamically, so this value is informational only. DO NOT use
- * the privilege mask to check for sufficient privileges, as that
- * can result in time-of-check/time-of-use bugs.
- */
- if ((rc = ef10_get_privilege_mask(enp, &mask)) != 0)
- goto fail11;
- encp->enc_privilege_mask = mask;
+ rc = efx_mcdi_get_nic_addr_caps(enp);
+ if (rc != 0)
+ goto fail12;
return (0);
+fail12:
+ EFSYS_PROBE(fail12);
fail11:
EFSYS_PROBE(fail11);
fail10: