New upstream version 18.11-rc1upstream/18.11-rc1

Change-Id: Iaa71986dd6332e878d8f4bf493101b2bbc6313bb
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

39 files changed, 3121 insertions, 1013 deletions

diff --git a/drivers/net/sfc/base/ef10_ev.c b/drivers/net/sfc/base/ef10_ev.c
index 7f89a7bf..cdf835f0 100644
--- a/drivers/net/sfc/base/ef10_ev.c
+++ b/drivers/net/sfc/base/ef10_ev.c
@@ -73,11 +73,10 @@ efx_mcdi_set_evq_tmr(
 	__in		uint32_t timer_ns)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_SET_EVQ_TMR_IN_LEN,
-			    MC_CMD_SET_EVQ_TMR_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SET_EVQ_TMR_IN_LEN,
+		MC_CMD_SET_EVQ_TMR_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_SET_EVQ_TMR;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_SET_EVQ_TMR_IN_LEN;
@@ -123,9 +122,9 @@ efx_mcdi_init_evq(
 	__in		boolean_t low_latency)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[
-	    MAX(MC_CMD_INIT_EVQ_IN_LEN(EFX_EVQ_NBUFS(EFX_EVQ_MAXNEVS)),
-		MC_CMD_INIT_EVQ_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload,
+		MC_CMD_INIT_EVQ_IN_LEN(EFX_EVQ_NBUFS(EFX_EVQ_MAXNEVS)),
+		MC_CMD_INIT_EVQ_OUT_LEN);
 	efx_qword_t *dma_addr;
 	uint64_t addr;
 	int npages;
@@ -140,7 +139,6 @@ efx_mcdi_init_evq(
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_INIT_EVQ;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_INIT_EVQ_IN_LEN(npages);
@@ -260,9 +258,9 @@ efx_mcdi_init_evq_v2(
 	__in		uint32_t flags)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[
-		MAX(MC_CMD_INIT_EVQ_V2_IN_LEN(EFX_EVQ_NBUFS(EFX_EVQ_MAXNEVS)),
-		    MC_CMD_INIT_EVQ_V2_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload,
+		MC_CMD_INIT_EVQ_V2_IN_LEN(EFX_EVQ_NBUFS(EFX_EVQ_MAXNEVS)),
+		MC_CMD_INIT_EVQ_V2_OUT_LEN);
 	boolean_t interrupting;
 	unsigned int evq_type;
 	efx_qword_t *dma_addr;
@@ -277,7 +275,6 @@ efx_mcdi_init_evq_v2(
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_INIT_EVQ;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_INIT_EVQ_V2_IN_LEN(npages);
@@ -384,11 +381,10 @@ efx_mcdi_fini_evq(
 	__in		uint32_t instance)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_FINI_EVQ_IN_LEN,
-			    MC_CMD_FINI_EVQ_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_FINI_EVQ_IN_LEN,
+		MC_CMD_FINI_EVQ_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_FINI_EVQ;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_FINI_EVQ_IN_LEN;
@@ -603,8 +599,8 @@ efx_mcdi_driver_event(
 	__in		efx_qword_t data)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_DRIVER_EVENT_IN_LEN,
-			    MC_CMD_DRIVER_EVENT_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_DRIVER_EVENT_IN_LEN,
+		MC_CMD_DRIVER_EVENT_OUT_LEN);
 	efx_rc_t rc;
 
 	req.emr_cmd = MC_CMD_DRIVER_EVENT;
@@ -867,8 +863,9 @@ ef10_ev_rx(
 
 	EFX_EV_QSTAT_INCR(eep, EV_RX);
 
-	/* Discard events after RXQ/TXQ errors */
-	if (enp->en_reset_flags & (EFX_RESET_RXQ_ERR | EFX_RESET_TXQ_ERR))
+	/* Discard events after RXQ/TXQ errors, or hardware not available */
+	if (enp->en_reset_flags &
+	    (EFX_RESET_RXQ_ERR | EFX_RESET_TXQ_ERR | EFX_RESET_HW_UNAVAIL))
 		return (B_FALSE);
 
 	/* Basic packet information */
@@ -1068,8 +1065,9 @@ ef10_ev_tx(
 
 	EFX_EV_QSTAT_INCR(eep, EV_TX);
 
-	/* Discard events after RXQ/TXQ errors */
-	if (enp->en_reset_flags & (EFX_RESET_RXQ_ERR | EFX_RESET_TXQ_ERR))
+	/* Discard events after RXQ/TXQ errors, or hardware not available */
+	if (enp->en_reset_flags &
+	    (EFX_RESET_RXQ_ERR | EFX_RESET_TXQ_ERR | EFX_RESET_HW_UNAVAIL))
 		return (B_FALSE);
 
 	if (EFX_QWORD_FIELD(*eqp, ESF_DZ_TX_DROP_EVENT) != 0) {
diff --git a/drivers/net/sfc/base/ef10_filter.c b/drivers/net/sfc/base/ef10_filter.c
index ae872853..afe4064d 100644
--- a/drivers/net/sfc/base/ef10_filter.c
+++ b/drivers/net/sfc/base/ef10_filter.c
@@ -172,12 +172,11 @@ efx_mcdi_filter_op_add(
 	__inout		ef10_filter_handle_t *handle)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_FILTER_OP_V3_IN_LEN,
-			    MC_CMD_FILTER_OP_EXT_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_FILTER_OP_V3_IN_LEN,
+		MC_CMD_FILTER_OP_EXT_OUT_LEN);
 	efx_filter_match_flags_t match_flags;
 	efx_rc_t rc;
 
-	memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_FILTER_OP;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_FILTER_OP_V3_IN_LEN;
@@ -376,11 +375,10 @@ efx_mcdi_filter_op_delete(
 	__inout		ef10_filter_handle_t *handle)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_FILTER_OP_EXT_IN_LEN,
-			    MC_CMD_FILTER_OP_EXT_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_FILTER_OP_EXT_IN_LEN,
+		MC_CMD_FILTER_OP_EXT_OUT_LEN);
 	efx_rc_t rc;
 
-	memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_FILTER_OP;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_FILTER_OP_EXT_IN_LEN;
@@ -950,13 +948,12 @@ efx_mcdi_get_parser_disp_info(
 	__out				size_t *list_lengthp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_PARSER_DISP_INFO_IN_LEN,
-			    MC_CMD_GET_PARSER_DISP_INFO_OUT_LENMAX)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_PARSER_DISP_INFO_IN_LEN,
+		MC_CMD_GET_PARSER_DISP_INFO_OUT_LENMAX);
 	size_t matches_count;
 	size_t list_size;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_PARSER_DISP_INFO;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_PARSER_DISP_INFO_IN_LEN;
@@ -1144,12 +1141,15 @@ ef10_filter_insert_unicast(
 	efx_filter_spec_init_rx(&spec, EFX_FILTER_PRI_AUTO,
 	    filter_flags,
 	    eftp->eft_default_rxq);
-	efx_filter_spec_set_eth_local(&spec, EFX_FILTER_SPEC_VID_UNSPEC, addr);
+	rc = efx_filter_spec_set_eth_local(&spec, EFX_FILTER_SPEC_VID_UNSPEC,
+	    addr);
+	if (rc != 0)
+		goto fail1;
 
 	rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
 	    &eftp->eft_unicst_filter_indexes[eftp->eft_unicst_filter_count]);
 	if (rc != 0)
-		goto fail1;
+		goto fail2;
 
 	eftp->eft_unicst_filter_count++;
 	EFSYS_ASSERT(eftp->eft_unicst_filter_count <=
@@ -1157,6 +1157,8 @@ ef10_filter_insert_unicast(
 
 	return (0);
 
+fail2:
+	EFSYS_PROBE(fail2);
 fail1:
 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
 	return (rc);
@@ -1175,11 +1177,13 @@ ef10_filter_insert_all_unicast(
 	efx_filter_spec_init_rx(&spec, EFX_FILTER_PRI_AUTO,
 	    filter_flags,
 	    eftp->eft_default_rxq);
-	efx_filter_spec_set_uc_def(&spec);
+	rc = efx_filter_spec_set_uc_def(&spec);
+	if (rc != 0)
+		goto fail1;
 	rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
 	    &eftp->eft_unicst_filter_indexes[eftp->eft_unicst_filter_count]);
 	if (rc != 0)
-		goto fail1;
+		goto fail2;
 
 	eftp->eft_unicst_filter_count++;
 	EFSYS_ASSERT(eftp->eft_unicst_filter_count <=
@@ -1187,6 +1191,8 @@ ef10_filter_insert_all_unicast(
 
 	return (0);
 
+fail2:
+	EFSYS_PROBE(fail2);
 fail1:
 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
 	return (rc);
@@ -1228,9 +1234,21 @@ ef10_filter_insert_multicast_list(
 		    filter_flags,
 		    eftp->eft_default_rxq);
 
-		efx_filter_spec_set_eth_local(&spec,
+		rc = efx_filter_spec_set_eth_local(&spec,
 		    EFX_FILTER_SPEC_VID_UNSPEC,
 		    &addrs[i * EFX_MAC_ADDR_LEN]);
+		if (rc != 0) {
+			if (rollback == B_TRUE) {
+				/* Only stop upon failure if told to rollback */
+				goto rollback;
+			} else {
+				/*
+				 * Don't try to add a filter with a corrupt
+				 * specification.
+				 */
+				continue;
+			}
+		}
 
 		rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
 					    &filter_index);
@@ -1253,8 +1271,12 @@ ef10_filter_insert_multicast_list(
 		    eftp->eft_default_rxq);
 
 		EFX_MAC_BROADCAST_ADDR_SET(addr);
-		efx_filter_spec_set_eth_local(&spec, EFX_FILTER_SPEC_VID_UNSPEC,
-		    addr);
+		rc = efx_filter_spec_set_eth_local(&spec,
+		    EFX_FILTER_SPEC_VID_UNSPEC, addr);
+		if ((rc != 0) && (rollback == B_TRUE)) {
+			/* Only stop upon failure if told to rollback */
+			goto rollback;
+		}
 
 		rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
 					    &filter_index);
@@ -1302,12 +1324,14 @@ ef10_filter_insert_all_multicast(
 	efx_filter_spec_init_rx(&spec, EFX_FILTER_PRI_AUTO,
 	    filter_flags,
 	    eftp->eft_default_rxq);
-	efx_filter_spec_set_mc_def(&spec);
+	rc = efx_filter_spec_set_mc_def(&spec);
+	if (rc != 0)
+		goto fail1;
 
 	rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
 	    &eftp->eft_mulcst_filter_indexes[0]);
 	if (rc != 0)
-		goto fail1;
+		goto fail2;
 
 	eftp->eft_mulcst_filter_count = 1;
 	eftp->eft_using_all_mulcst = B_TRUE;
@@ -1318,6 +1342,8 @@ ef10_filter_insert_all_multicast(
 
 	return (0);
 
+fail2:
+	EFSYS_PROBE(fail2);
 fail1:
 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
 
@@ -1552,7 +1578,7 @@ ef10_filter_reconfigure(
 	/*
 	 * Insert or renew unicast filters.
 	 *
-	 * Frimware does not perform chaining on unicast filters. As traffic is
+	 * Firmware does not perform chaining on unicast filters. As traffic is
 	 * therefore only delivered to the first matching filter, we should
 	 * always insert the specific filter for our MAC address, to try and
 	 * ensure we get that traffic.
diff --git a/drivers/net/sfc/base/ef10_image.c b/drivers/net/sfc/base/ef10_image.c
index 6fb7e476..c035e0df 100644
--- a/drivers/net/sfc/base/ef10_image.c
+++ b/drivers/net/sfc/base/ef10_image.c
@@ -577,7 +577,8 @@ fail1:
 
 	__checkReturn	efx_rc_t
 efx_build_signed_image_write_buffer(
-	__out		uint8_t			*bufferp,
+	__out_bcount(buffer_size)
+			uint8_t			*bufferp,
 	__in		uint32_t		buffer_size,
 	__in		efx_image_info_t	*infop,
 	__out		efx_image_header_t	**headerpp)
@@ -704,7 +705,7 @@ efx_build_signed_image_write_buffer(
 	 * results in the layout used for the data chunks and chunk headers.
 	 */
 	/* END CSTYLED */
-	memset(bufferp, buffer_size, 0xFF);
+	memset(bufferp, 0xFF, buffer_size);
 
 	EFX_STATIC_ASSERT(sizeof (chunk_hdr) == SIGNED_IMAGE_CHUNK_HDR_LEN);
 	memset(&chunk_hdr, 0, SIGNED_IMAGE_CHUNK_HDR_LEN);
diff --git a/drivers/net/sfc/base/ef10_impl.h b/drivers/net/sfc/base/ef10_impl.h
index 4751faf1..f971063a 100644
--- a/drivers/net/sfc/base/ef10_impl.h
+++ b/drivers/net/sfc/base/ef10_impl.h
@@ -190,6 +190,14 @@ extern	__checkReturn	efx_rc_t
 ef10_nic_init(
 	__in		efx_nic_t *enp);
 
+extern	__checkReturn	boolean_t
+ef10_nic_hw_unavailable(
+	__in		efx_nic_t *enp);
+
+extern			void
+ef10_nic_set_hw_unavailable(
+	__in		efx_nic_t *enp);
+
 #if EFSYS_OPT_DIAG
 
 extern	__checkReturn	efx_rc_t
@@ -453,7 +461,7 @@ ef10_nvram_partn_write(
 	__in			efx_nic_t *enp,
 	__in			uint32_t partn,
 	__in			unsigned int offset,
-	__out_bcount(size)	caddr_t data,
+	__in_bcount(size)	caddr_t data,
 	__in			size_t size);
 
 extern	__checkReturn		efx_rc_t
@@ -477,17 +485,21 @@ ef10_nvram_partn_set_version(
 
 extern	__checkReturn		efx_rc_t
 ef10_nvram_buffer_validate(
-	__in			efx_nic_t *enp,
 	__in			uint32_t partn,
 	__in_bcount(buffer_size)
 				caddr_t bufferp,
 	__in			size_t buffer_size);
 
+extern			void
+ef10_nvram_buffer_init(
+	__out_bcount(buffer_size)
+				caddr_t bufferp,
+	__in			size_t buffer_size);
+
 extern	__checkReturn		efx_rc_t
 ef10_nvram_buffer_create(
-	__in			efx_nic_t *enp,
-	__in			uint16_t partn_type,
-	__in_bcount(buffer_size)
+	__in			uint32_t partn_type,
+	__out_bcount(buffer_size)
 				caddr_t bufferp,
 	__in			size_t buffer_size);
 
@@ -516,15 +528,26 @@ ef10_nvram_buffer_find_item(
 	__out			uint32_t *lengthp);
 
 extern	__checkReturn		efx_rc_t
+ef10_nvram_buffer_peek_item(
+	__in_bcount(buffer_size)
+				caddr_t bufferp,
+	__in			size_t buffer_size,
+	__in			uint32_t offset,
+	__out			uint32_t *tagp,
+	__out			uint32_t *lengthp,
+	__out			uint32_t *value_offsetp);
+
+extern	__checkReturn		efx_rc_t
 ef10_nvram_buffer_get_item(
 	__in_bcount(buffer_size)
 				caddr_t bufferp,
 	__in			size_t buffer_size,
 	__in			uint32_t offset,
 	__in			uint32_t length,
-	__out_bcount_part(item_max_size, *lengthp)
-				caddr_t itemp,
-	__in			size_t item_max_size,
+	__out			uint32_t *tagp,
+	__out_bcount_part(value_max_size, *lengthp)
+				caddr_t valuep,
+	__in			size_t value_max_size,
 	__out			uint32_t *lengthp);
 
 extern	__checkReturn		efx_rc_t
@@ -533,7 +556,19 @@ ef10_nvram_buffer_insert_item(
 				caddr_t bufferp,
 	__in			size_t buffer_size,
 	__in			uint32_t offset,
-	__in_bcount(length)	caddr_t keyp,
+	__in			uint32_t tag,
+	__in_bcount(length)	caddr_t valuep,
+	__in			uint32_t length,
+	__out			uint32_t *lengthp);
+
+extern	__checkReturn		efx_rc_t
+ef10_nvram_buffer_modify_item(
+	__in_bcount(buffer_size)
+				caddr_t bufferp,
+	__in			size_t buffer_size,
+	__in			uint32_t offset,
+	__in			uint32_t tag,
+	__in_bcount(length)	caddr_t valuep,
 	__in			uint32_t length,
 	__out			uint32_t *lengthp);
 
@@ -558,10 +593,7 @@ ef10_nvram_buffer_finish(
 /* PHY */
 
 typedef struct ef10_link_state_s {
-	uint32_t		els_adv_cap_mask;
-	uint32_t		els_lp_cap_mask;
-	unsigned int		els_fcntl;
-	efx_link_mode_t		els_link_mode;
+	efx_phy_link_state_t	epls;
 #if EFSYS_OPT_LOOPBACK
 	efx_loopback_type_t	els_loopback;
 #endif
@@ -597,6 +629,11 @@ ef10_phy_oui_get(
 	__in		efx_nic_t *enp,
 	__out		uint32_t *ouip);
 
+extern	__checkReturn	efx_rc_t
+ef10_phy_link_state_get(
+	__in		efx_nic_t *enp,
+	__out		efx_phy_link_state_t *eplsp);
+
 #if EFSYS_OPT_PHY_STATS
 
 extern	__checkReturn			efx_rc_t
@@ -1128,11 +1165,12 @@ extern	__checkReturn	efx_rc_t
 efx_mcdi_get_port_modes(
 	__in		efx_nic_t *enp,
 	__out		uint32_t *modesp,
-	__out_opt	uint32_t *current_modep);
+	__out_opt	uint32_t *current_modep,
+	__out_opt	uint32_t *default_modep);
 
 extern	__checkReturn	efx_rc_t
 ef10_nic_get_port_mode_bandwidth(
-	__in		uint32_t port_mode,
+	__in		efx_nic_t *enp,
 	__out		uint32_t *bandwidth_mbpsp);
 
 extern	__checkReturn	efx_rc_t
diff --git a/drivers/net/sfc/base/ef10_intr.c b/drivers/net/sfc/base/ef10_intr.c
index 1ffe266b..efa15712 100644
--- a/drivers/net/sfc/base/ef10_intr.c
+++ b/drivers/net/sfc/base/ef10_intr.c
@@ -51,8 +51,8 @@ efx_mcdi_trigger_interrupt(
 	__in		unsigned int level)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_TRIGGER_INTERRUPT_IN_LEN,
-			    MC_CMD_TRIGGER_INTERRUPT_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_TRIGGER_INTERRUPT_IN_LEN,
+		MC_CMD_TRIGGER_INTERRUPT_OUT_LEN);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
@@ -64,7 +64,6 @@ efx_mcdi_trigger_interrupt(
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_TRIGGER_INTERRUPT;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_TRIGGER_INTERRUPT_IN_LEN;
diff --git a/drivers/net/sfc/base/ef10_mac.c b/drivers/net/sfc/base/ef10_mac.c
index 1031e836..9f10f6f7 100644
--- a/drivers/net/sfc/base/ef10_mac.c
+++ b/drivers/net/sfc/base/ef10_mac.c
@@ -22,10 +22,10 @@ ef10_mac_poll(
 	if ((rc = ef10_phy_get_link(enp, &els)) != 0)
 		goto fail1;
 
-	epp->ep_adv_cap_mask = els.els_adv_cap_mask;
-	epp->ep_fcntl = els.els_fcntl;
+	epp->ep_adv_cap_mask = els.epls.epls_adv_cap_mask;
+	epp->ep_fcntl = els.epls.epls_fcntl;
 
-	*link_modep = els.els_link_mode;
+	*link_modep = els.epls.epls_link_mode;
 
 	return (0);
 
@@ -75,11 +75,10 @@ efx_mcdi_vadapter_set_mac(
 {
 	efx_port_t *epp = &(enp->en_port);
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_VADAPTOR_SET_MAC_IN_LEN,
-			    MC_CMD_VADAPTOR_SET_MAC_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_VADAPTOR_SET_MAC_IN_LEN,
+		MC_CMD_VADAPTOR_SET_MAC_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_VADAPTOR_SET_MAC;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_VADAPTOR_SET_MAC_IN_LEN;
@@ -141,11 +140,10 @@ efx_mcdi_mtu_set(
 	__in		uint32_t mtu)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_SET_MAC_EXT_IN_LEN,
-			    MC_CMD_SET_MAC_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SET_MAC_EXT_IN_LEN,
+		MC_CMD_SET_MAC_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_SET_MAC;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_SET_MAC_EXT_IN_LEN;
@@ -178,11 +176,10 @@ efx_mcdi_mtu_get(
 	__out		size_t *mtu)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_SET_MAC_EXT_IN_LEN,
-			    MC_CMD_SET_MAC_V2_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SET_MAC_EXT_IN_LEN,
+		MC_CMD_SET_MAC_V2_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_SET_MAC;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_SET_MAC_EXT_IN_LEN;
@@ -274,11 +271,10 @@ ef10_mac_reconfigure(
 {
 	efx_port_t *epp = &(enp->en_port);
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_SET_MAC_IN_LEN,
-			    MC_CMD_SET_MAC_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SET_MAC_IN_LEN,
+		MC_CMD_SET_MAC_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_SET_MAC;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_SET_MAC_IN_LEN;
@@ -412,7 +408,7 @@ ef10_mac_filter_default_rxq_clear(
 
 	ef10_filter_default_rxq_clear(enp);
 
-	efx_filter_reconfigure(enp, epp->ep_mac_addr,
+	(void) efx_filter_reconfigure(enp, epp->ep_mac_addr,
 				    epp->ep_all_unicst, epp->ep_mulcst,
 				    epp->ep_all_mulcst, epp->ep_brdcst,
 				    epp->ep_mulcst_addr_list,
@@ -654,7 +650,7 @@ ef10_mac_stats_update(
 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_LT64_PKTS, &value);
 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_LE_64_PKTS]), &value);
 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_64_PKTS, &value);
-	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_LE_64_PKTS]), &value);
+	EFSYS_STAT_INCR_QWORD(&(stat[EFX_MAC_TX_LE_64_PKTS]), &value);
 
 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_65_TO_127_PKTS, &value);
 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_65_TO_127_PKTS]), &value);
diff --git a/drivers/net/sfc/base/ef10_nic.c b/drivers/net/sfc/base/ef10_nic.c
index 7dbf843b..50e23b7d 100644
--- a/drivers/net/sfc/base/ef10_nic.c
+++ b/drivers/net/sfc/base/ef10_nic.c
@@ -20,15 +20,14 @@ efx_mcdi_get_port_assignment(
 	__out		uint32_t *portp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_PORT_ASSIGNMENT_IN_LEN,
-			    MC_CMD_GET_PORT_ASSIGNMENT_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_PORT_ASSIGNMENT_IN_LEN,
+		MC_CMD_GET_PORT_ASSIGNMENT_OUT_LEN);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
 	    enp->en_family == EFX_FAMILY_MEDFORD ||
 	    enp->en_family == EFX_FAMILY_MEDFORD2);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_PORT_ASSIGNMENT;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_PORT_ASSIGNMENT_IN_LEN;
@@ -63,18 +62,18 @@ fail1:
 efx_mcdi_get_port_modes(
 	__in		efx_nic_t *enp,
 	__out		uint32_t *modesp,
-	__out_opt	uint32_t *current_modep)
+	__out_opt	uint32_t *current_modep,
+	__out_opt	uint32_t *default_modep)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_PORT_MODES_IN_LEN,
-			    MC_CMD_GET_PORT_MODES_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_PORT_MODES_IN_LEN,
+		MC_CMD_GET_PORT_MODES_OUT_LEN);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
 	    enp->en_family == EFX_FAMILY_MEDFORD ||
 	    enp->en_family == EFX_FAMILY_MEDFORD2);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_PORT_MODES;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_PORT_MODES_IN_LEN;
@@ -110,6 +109,11 @@ efx_mcdi_get_port_modes(
 					    GET_PORT_MODES_OUT_CURRENT_MODE);
 	}
 
+	if (default_modep != NULL) {
+		*default_modep = MCDI_OUT_DWORD(req,
+					    GET_PORT_MODES_OUT_DEFAULT_MODE);
+	}
+
 	return (0);
 
 fail3:
@@ -124,44 +128,99 @@ fail1:
 
 	__checkReturn	efx_rc_t
 ef10_nic_get_port_mode_bandwidth(
-	__in		uint32_t port_mode,
+	__in		efx_nic_t *enp,
 	__out		uint32_t *bandwidth_mbpsp)
 {
+	uint32_t port_modes;
+	uint32_t current_mode;
+	efx_port_t *epp = &(enp->en_port);
+
+	uint32_t single_lane;
+	uint32_t dual_lane;
+	uint32_t quad_lane;
 	uint32_t bandwidth;
 	efx_rc_t rc;
 
-	switch (port_mode) {
-	case TLV_PORT_MODE_10G:
-		bandwidth = 10000;
+	if ((rc = efx_mcdi_get_port_modes(enp, &port_modes,
+				    &current_mode, NULL)) != 0) {
+		/* No port mode info available. */
+		goto fail1;
+	}
+
+	if (epp->ep_phy_cap_mask & (1 << EFX_PHY_CAP_25000FDX))
+		single_lane = 25000;
+	else
+		single_lane = 10000;
+
+	if (epp->ep_phy_cap_mask & (1 << EFX_PHY_CAP_50000FDX))
+		dual_lane = 50000;
+	else
+		dual_lane = 20000;
+
+	if (epp->ep_phy_cap_mask & (1 << EFX_PHY_CAP_100000FDX))
+		quad_lane = 100000;
+	else
+		quad_lane = 40000;
+
+	switch (current_mode) {
+	case TLV_PORT_MODE_1x1_NA:			/* mode 0 */
+		bandwidth = single_lane;
+		break;
+	case TLV_PORT_MODE_1x2_NA:			/* mode 10 */
+	case TLV_PORT_MODE_NA_1x2:			/* mode 11 */
+		bandwidth = dual_lane;
+		break;
+	case TLV_PORT_MODE_1x1_1x1:			/* mode 2 */
+		bandwidth = single_lane + single_lane;
+		break;
+	case TLV_PORT_MODE_4x1_NA:			/* mode 4 */
+	case TLV_PORT_MODE_NA_4x1:			/* mode 8 */
+		bandwidth = 4 * single_lane;
+		break;
+	case TLV_PORT_MODE_2x1_2x1:			/* mode 5 */
+		bandwidth = (2 * single_lane) + (2 * single_lane);
+		break;
+	case TLV_PORT_MODE_1x2_1x2:			/* mode 12 */
+		bandwidth = dual_lane + dual_lane;
+		break;
+	case TLV_PORT_MODE_1x2_2x1:			/* mode 17 */
+	case TLV_PORT_MODE_2x1_1x2:			/* mode 18 */
+		bandwidth = dual_lane + (2 * single_lane);
 		break;
-	case TLV_PORT_MODE_10G_10G:
-		bandwidth = 10000 * 2;
+	/* Legacy Medford-only mode. Do not use (see bug63270) */
+	case TLV_PORT_MODE_10G_10G_10G_10G_Q1_Q2:	/* mode 9 */
+		bandwidth = 4 * single_lane;
 		break;
-	case TLV_PORT_MODE_10G_10G_10G_10G:
-	case TLV_PORT_MODE_10G_10G_10G_10G_Q:
-	case TLV_PORT_MODE_10G_10G_10G_10G_Q1_Q2:
-	case TLV_PORT_MODE_10G_10G_10G_10G_Q2:
-		bandwidth = 10000 * 4;
+	case TLV_PORT_MODE_1x4_NA:			/* mode 1 */
+	case TLV_PORT_MODE_NA_1x4:			/* mode 22 */
+		bandwidth = quad_lane;
 		break;
-	case TLV_PORT_MODE_40G:
-		bandwidth = 40000;
+	case TLV_PORT_MODE_2x2_NA:			/* mode 13 */
+	case TLV_PORT_MODE_NA_2x2:			/* mode 14 */
+		bandwidth = 2 * dual_lane;
 		break;
-	case TLV_PORT_MODE_40G_40G:
-		bandwidth = 40000 * 2;
+	case TLV_PORT_MODE_1x4_2x1:			/* mode 6 */
+	case TLV_PORT_MODE_2x1_1x4:			/* mode 7 */
+		bandwidth = quad_lane + (2 * single_lane);
 		break;
-	case TLV_PORT_MODE_40G_10G_10G:
-	case TLV_PORT_MODE_10G_10G_40G:
-		bandwidth = 40000 + (10000 * 2);
+	case TLV_PORT_MODE_1x4_1x2:			/* mode 15 */
+	case TLV_PORT_MODE_1x2_1x4:			/* mode 16 */
+		bandwidth = quad_lane + dual_lane;
+		break;
+	case TLV_PORT_MODE_1x4_1x4:			/* mode 3 */
+		bandwidth = quad_lane + quad_lane;
 		break;
 	default:
 		rc = EINVAL;
-		goto fail1;
+		goto fail2;
 	}
 
 	*bandwidth_mbpsp = bandwidth;
 
 	return (0);
 
+fail2:
+	EFSYS_PROBE(fail2);
 fail1:
 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
 
@@ -174,13 +233,12 @@ efx_mcdi_vadaptor_alloc(
 	__in			uint32_t port_id)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_VADAPTOR_ALLOC_IN_LEN,
-			    MC_CMD_VADAPTOR_ALLOC_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_VADAPTOR_ALLOC_IN_LEN,
+		MC_CMD_VADAPTOR_ALLOC_OUT_LEN);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT3U(enp->en_vport_id, ==, EVB_PORT_ID_NULL);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_VADAPTOR_ALLOC;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_VADAPTOR_ALLOC_IN_LEN;
@@ -213,11 +271,10 @@ efx_mcdi_vadaptor_free(
 	__in			uint32_t port_id)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_VADAPTOR_FREE_IN_LEN,
-			    MC_CMD_VADAPTOR_FREE_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_VADAPTOR_FREE_IN_LEN,
+		MC_CMD_VADAPTOR_FREE_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_VADAPTOR_FREE;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_VADAPTOR_FREE_IN_LEN;
@@ -247,15 +304,14 @@ efx_mcdi_get_mac_address_pf(
 	__out_ecount_opt(6)	uint8_t mac_addrp[6])
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_MAC_ADDRESSES_IN_LEN,
-			    MC_CMD_GET_MAC_ADDRESSES_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_MAC_ADDRESSES_IN_LEN,
+		MC_CMD_GET_MAC_ADDRESSES_OUT_LEN);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
 	    enp->en_family == EFX_FAMILY_MEDFORD ||
 	    enp->en_family == EFX_FAMILY_MEDFORD2);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_MAC_ADDRESSES;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_MAC_ADDRESSES_IN_LEN;
@@ -306,15 +362,14 @@ efx_mcdi_get_mac_address_vf(
 	__out_ecount_opt(6)	uint8_t mac_addrp[6])
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_VPORT_GET_MAC_ADDRESSES_IN_LEN,
-			    MC_CMD_VPORT_GET_MAC_ADDRESSES_OUT_LENMAX)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_VPORT_GET_MAC_ADDRESSES_IN_LEN,
+		MC_CMD_VPORT_GET_MAC_ADDRESSES_OUT_LENMAX);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
 	    enp->en_family == EFX_FAMILY_MEDFORD ||
 	    enp->en_family == EFX_FAMILY_MEDFORD2);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_VPORT_GET_MAC_ADDRESSES;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_VPORT_GET_MAC_ADDRESSES_IN_LEN;
@@ -371,15 +426,14 @@ efx_mcdi_get_clock(
 	__out		uint32_t *dpcpu_freqp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_CLOCK_IN_LEN,
-			    MC_CMD_GET_CLOCK_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_CLOCK_IN_LEN,
+		MC_CMD_GET_CLOCK_OUT_LEN);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
 	    enp->en_family == EFX_FAMILY_MEDFORD ||
 	    enp->en_family == EFX_FAMILY_MEDFORD2);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_CLOCK;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_CLOCK_IN_LEN;
@@ -429,12 +483,11 @@ efx_mcdi_get_rxdp_config(
 	__out		uint32_t *end_paddingp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_RXDP_CONFIG_IN_LEN,
-			    MC_CMD_GET_RXDP_CONFIG_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_RXDP_CONFIG_IN_LEN,
+		MC_CMD_GET_RXDP_CONFIG_OUT_LEN);
 	uint32_t end_padding;
 	efx_rc_t rc;
 
-	memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_RXDP_CONFIG;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_RXDP_CONFIG_IN_LEN;
@@ -489,11 +542,10 @@ efx_mcdi_get_vector_cfg(
 	__out_opt	uint32_t *vf_nvecp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_VECTOR_CFG_IN_LEN,
-			    MC_CMD_GET_VECTOR_CFG_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_VECTOR_CFG_IN_LEN,
+		MC_CMD_GET_VECTOR_CFG_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_VECTOR_CFG;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_VECTOR_CFG_IN_LEN;
@@ -539,8 +591,8 @@ efx_mcdi_alloc_vis(
 	__out		uint32_t *vi_shiftp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_ALLOC_VIS_IN_LEN,
-			    MC_CMD_ALLOC_VIS_EXT_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_ALLOC_VIS_IN_LEN,
+		MC_CMD_ALLOC_VIS_EXT_OUT_LEN);
 	efx_rc_t rc;
 
 	if (vi_countp == NULL) {
@@ -548,7 +600,6 @@ efx_mcdi_alloc_vis(
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_ALLOC_VIS;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_ALLOC_VIS_IN_LEN;
@@ -631,8 +682,8 @@ efx_mcdi_alloc_piobuf(
 	__out		efx_piobuf_handle_t *handlep)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_ALLOC_PIOBUF_IN_LEN,
-			    MC_CMD_ALLOC_PIOBUF_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_ALLOC_PIOBUF_IN_LEN,
+		MC_CMD_ALLOC_PIOBUF_OUT_LEN);
 	efx_rc_t rc;
 
 	if (handlep == NULL) {
@@ -640,7 +691,6 @@ efx_mcdi_alloc_piobuf(
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_ALLOC_PIOBUF;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_ALLOC_PIOBUF_IN_LEN;
@@ -679,11 +729,10 @@ efx_mcdi_free_piobuf(
 	__in		efx_piobuf_handle_t handle)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_FREE_PIOBUF_IN_LEN,
-			    MC_CMD_FREE_PIOBUF_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_FREE_PIOBUF_IN_LEN,
+		MC_CMD_FREE_PIOBUF_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_FREE_PIOBUF;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_FREE_PIOBUF_IN_LEN;
@@ -714,11 +763,10 @@ efx_mcdi_link_piobuf(
 	__in		efx_piobuf_handle_t handle)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_LINK_PIOBUF_IN_LEN,
-			    MC_CMD_LINK_PIOBUF_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_LINK_PIOBUF_IN_LEN,
+		MC_CMD_LINK_PIOBUF_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_LINK_PIOBUF;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_LINK_PIOBUF_IN_LEN;
@@ -749,11 +797,10 @@ efx_mcdi_unlink_piobuf(
 	__in		uint32_t vi_index)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_UNLINK_PIOBUF_IN_LEN,
-			    MC_CMD_UNLINK_PIOBUF_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_UNLINK_PIOBUF_IN_LEN,
+		MC_CMD_UNLINK_PIOBUF_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_UNLINK_PIOBUF;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_UNLINK_PIOBUF_IN_LEN;
@@ -806,7 +853,7 @@ fail1:
 	for (i = 0; i < enp->en_arch.ef10.ena_piobuf_count; i++) {
 		handlep = &enp->en_arch.ef10.ena_piobuf_handle[i];
 
-		efx_mcdi_free_piobuf(enp, *handlep);
+		(void) efx_mcdi_free_piobuf(enp, *handlep);
 		*handlep = EFX_PIOBUF_HANDLE_INVALID;
 	}
 	enp->en_arch.ef10.ena_piobuf_count = 0;
@@ -823,7 +870,7 @@ ef10_nic_free_piobufs(
 	for (i = 0; i < enp->en_arch.ef10.ena_piobuf_count; i++) {
 		handlep = &enp->en_arch.ef10.ena_piobuf_handle[i];
 
-		efx_mcdi_free_piobuf(enp, *handlep);
+		(void) efx_mcdi_free_piobuf(enp, *handlep);
 		*handlep = EFX_PIOBUF_HANDLE_INVALID;
 	}
 	enp->en_arch.ef10.ena_piobuf_count = 0;
@@ -951,11 +998,10 @@ ef10_mcdi_get_pf_count(
 	__out		uint32_t *pf_countp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_PF_COUNT_IN_LEN,
-			    MC_CMD_GET_PF_COUNT_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_PF_COUNT_IN_LEN,
+		MC_CMD_GET_PF_COUNT_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_PF_COUNT;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_PF_COUNT_IN_LEN;
@@ -995,15 +1041,14 @@ ef10_get_datapath_caps(
 {
 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_CAPABILITIES_IN_LEN,
-			    MC_CMD_GET_CAPABILITIES_V5_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_CAPABILITIES_IN_LEN,
+		MC_CMD_GET_CAPABILITIES_V5_OUT_LEN);
 	efx_rc_t rc;
 
 	if ((rc = ef10_mcdi_get_pf_count(enp, &encp->enc_hw_pf_count)) != 0)
 		goto fail1;
 
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_CAPABILITIES;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_CAPABILITIES_IN_LEN;
@@ -1041,11 +1086,13 @@ ef10_get_datapath_caps(
 	}
 	encp->enc_rx_prefix_size = 14;
 
+#if EFSYS_OPT_RX_SCALE
 	/* Check if the firmware supports additional RSS modes */
 	if (CAP_FLAGS1(req, ADDITIONAL_RSS_MODES))
 		encp->enc_rx_scale_additional_modes_supported = B_TRUE;
 	else
 		encp->enc_rx_scale_additional_modes_supported = B_FALSE;
+#endif /* EFSYS_OPT_RX_SCALE */
 
 	/* Check if the firmware supports TSO */
 	if (CAP_FLAGS1(req, TX_TSO))
@@ -1251,6 +1298,7 @@ ef10_get_datapath_caps(
 	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;
@@ -1300,6 +1348,8 @@ ef10_get_datapath_caps(
 		 */
 		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;
@@ -1323,8 +1373,10 @@ ef10_get_datapath_caps(
 
 	return (0);
 
+#if EFSYS_OPT_RX_SCALE
 fail5:
 	EFSYS_PROBE(fail5);
+#endif /* EFSYS_OPT_RX_SCALE */
 fail4:
 	EFSYS_PROBE(fail4);
 fail3:
@@ -1478,8 +1530,8 @@ static struct ef10_external_port_map_s {
 	 */
 	{
 		EFX_FAMILY_MEDFORD,
-		(1U << TLV_PORT_MODE_10G) |			/* mode 0 */
-		(1U << TLV_PORT_MODE_10G_10G),			/* mode 2 */
+		(1U << TLV_PORT_MODE_1x1_NA) |			/* mode 0 */
+		(1U << TLV_PORT_MODE_1x1_1x1),			/* mode 2 */
 		1,	/* ports per cage */
 		1	/* first cage */
 	},
@@ -1493,10 +1545,10 @@ static struct ef10_external_port_map_s {
 	 */
 	{
 		EFX_FAMILY_MEDFORD,
-		(1U << TLV_PORT_MODE_40G) |			/* mode 1 */
-		(1U << TLV_PORT_MODE_40G_40G) |			/* mode 3 */
-		(1U << TLV_PORT_MODE_40G_10G_10G) |		/* mode 6 */
-		(1U << TLV_PORT_MODE_10G_10G_40G) |		/* mode 7 */
+		(1U << TLV_PORT_MODE_1x4_NA) |			/* mode 1 */
+		(1U << TLV_PORT_MODE_1x4_1x4) |			/* mode 3 */
+		(1U << TLV_PORT_MODE_1x4_2x1) |			/* mode 6 */
+		(1U << TLV_PORT_MODE_2x1_1x4) |			/* mode 7 */
 		/* Do not use 10G_10G_10G_10G_Q1_Q2 (see bug63270) */
 		(1U << TLV_PORT_MODE_10G_10G_10G_10G_Q1_Q2),	/* mode 9 */
 		2,	/* ports per cage */
@@ -1512,9 +1564,9 @@ static struct ef10_external_port_map_s {
 	 */
 	{
 		EFX_FAMILY_MEDFORD,
-		(1U << TLV_PORT_MODE_10G_10G_10G_10G_Q) |	/* mode 5 */
+		(1U << TLV_PORT_MODE_2x1_2x1) |			/* mode 5 */
 		/* Do not use 10G_10G_10G_10G_Q1 (see bug63270) */
-		(1U << TLV_PORT_MODE_10G_10G_10G_10G_Q1),	/* mode 4 */
+		(1U << TLV_PORT_MODE_4x1_NA),			/* mode 4 */
 		4,	/* ports per cage */
 		1	/* first cage */
 	},
@@ -1528,7 +1580,7 @@ static struct ef10_external_port_map_s {
 	 */
 	{
 		EFX_FAMILY_MEDFORD,
-		(1U << TLV_PORT_MODE_10G_10G_10G_10G_Q2),	/* mode 8 */
+		(1U << TLV_PORT_MODE_NA_4x1),			/* mode 8 */
 		4,	/* ports per cage */
 		2	/* first cage */
 	},
@@ -1635,13 +1687,14 @@ ef10_external_port_mapping(
 	int32_t count = 1; /* Default 1-1 mapping */
 	int32_t offset = 1; /* Default starting external port number */
 
-	if ((rc = efx_mcdi_get_port_modes(enp, &port_modes, &current)) != 0) {
+	if ((rc = efx_mcdi_get_port_modes(enp, &port_modes, &current,
+		    NULL)) != 0) {
 		/*
 		 * No current port mode information (i.e. Huntington)
 		 * - infer mapping from available modes
 		 */
 		if ((rc = efx_mcdi_get_port_modes(enp,
-			    &port_modes, NULL)) != 0) {
+			    &port_modes, NULL, NULL)) != 0) {
 			/*
 			 * No port mode information available
 			 * - use default mapping
@@ -1781,11 +1834,26 @@ ef10_nic_board_cfg(
 	if ((rc = efx_mcdi_get_phy_cfg(enp)) != 0)
 		goto fail6;
 
+	/*
+	 * Firmware with support for *_FEC capability bits does not
+	 * report that the corresponding *_FEC_REQUESTED bits are supported.
+	 * Add them here so that drivers understand that they are supported.
+	 */
+	if (epp->ep_phy_cap_mask & (1u << EFX_PHY_CAP_BASER_FEC))
+		epp->ep_phy_cap_mask |=
+		    (1u << EFX_PHY_CAP_BASER_FEC_REQUESTED);
+	if (epp->ep_phy_cap_mask & (1u << EFX_PHY_CAP_RS_FEC))
+		epp->ep_phy_cap_mask |=
+		    (1u << EFX_PHY_CAP_RS_FEC_REQUESTED);
+	if (epp->ep_phy_cap_mask & (1u << EFX_PHY_CAP_25G_BASER_FEC))
+		epp->ep_phy_cap_mask |=
+		    (1u << EFX_PHY_CAP_25G_BASER_FEC_REQUESTED);
+
 	/* Obtain the default PHY advertised capabilities */
 	if ((rc = ef10_phy_get_link(enp, &els)) != 0)
 		goto fail7;
-	epp->ep_default_adv_cap_mask = els.els_adv_cap_mask;
-	epp->ep_adv_cap_mask = els.els_adv_cap_mask;
+	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)
@@ -2039,8 +2107,8 @@ ef10_nic_reset(
 	__in		efx_nic_t *enp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_ENTITY_RESET_IN_LEN,
-			    MC_CMD_ENTITY_RESET_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_ENTITY_RESET_IN_LEN,
+		MC_CMD_ENTITY_RESET_OUT_LEN);
 	efx_rc_t rc;
 
 	/* ef10_nic_reset() is called to recover from BADASSERT failures. */
@@ -2049,7 +2117,6 @@ ef10_nic_reset(
 	if ((rc = efx_mcdi_exit_assertion_handler(enp)) != 0)
 		goto fail2;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_ENTITY_RESET;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_ENTITY_RESET_IN_LEN;
@@ -2314,6 +2381,36 @@ fail1:
 	return (rc);
 }
 
+	__checkReturn	boolean_t
+ef10_nic_hw_unavailable(
+	__in		efx_nic_t *enp)
+{
+	efx_dword_t dword;
+
+	if (enp->en_reset_flags & EFX_RESET_HW_UNAVAIL)
+		return (B_TRUE);
+
+	EFX_BAR_READD(enp, ER_DZ_BIU_MC_SFT_STATUS_REG, &dword, B_FALSE);
+	if (EFX_DWORD_FIELD(dword, EFX_DWORD_0) == 0xffffffff)
+		goto unavail;
+
+	return (B_FALSE);
+
+unavail:
+	ef10_nic_set_hw_unavailable(enp);
+
+	return (B_TRUE);
+}
+
+			void
+ef10_nic_set_hw_unavailable(
+	__in		efx_nic_t *enp)
+{
+	EFSYS_PROBE(hw_unavail);
+	enp->en_reset_flags |= EFX_RESET_HW_UNAVAIL;
+}
+
+
 			void
 ef10_nic_fini(
 	__in		efx_nic_t *enp)
@@ -2386,11 +2483,10 @@ efx_mcdi_get_nic_global(
 	__out		uint32_t *valuep)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_NIC_GLOBAL_IN_LEN,
-			    MC_CMD_GET_NIC_GLOBAL_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_NIC_GLOBAL_IN_LEN,
+		MC_CMD_GET_NIC_GLOBAL_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_NIC_GLOBAL;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_NIC_GLOBAL_IN_LEN;
@@ -2430,10 +2526,9 @@ efx_mcdi_set_nic_global(
 	__in		uint32_t value)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MC_CMD_SET_NIC_GLOBAL_IN_LEN];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SET_NIC_GLOBAL_IN_LEN, 0);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_SET_NIC_GLOBAL;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_SET_NIC_GLOBAL_IN_LEN;
diff --git a/drivers/net/sfc/base/ef10_nvram.c b/drivers/net/sfc/base/ef10_nvram.c
index 2883ec8f..8d1b64f2 100644
--- a/drivers/net/sfc/base/ef10_nvram.c
+++ b/drivers/net/sfc/base/ef10_nvram.c
@@ -203,14 +203,14 @@ tlv_validate_state(
 
 	if (tlv_tag(cursor) != TLV_TAG_END) {
 		/* Check current item has space for tag and length */
-		if (cursor->current > (cursor->limit - 2)) {
+		if (cursor->current > (cursor->limit - 1)) {
 			cursor->current = NULL;
 			rc = EFAULT;
 			goto fail3;
 		}
 
-		/* Check we have value data for current item and another tag */
-		if (tlv_next_item_ptr(cursor) > (cursor->limit - 1)) {
+		/* Check we have value data for current item and an END tag */
+		if (tlv_next_item_ptr(cursor) > cursor->limit) {
 			cursor->current = NULL;
 			rc = EFAULT;
 			goto fail4;
@@ -635,7 +635,6 @@ fail1:
 /* Validate buffer contents (before writing to flash) */
 	__checkReturn		efx_rc_t
 ef10_nvram_buffer_validate(
-	__in			efx_nic_t *enp,
 	__in			uint32_t partn,
 	__in_bcount(partn_size)	caddr_t partn_data,
 	__in			size_t partn_size)
@@ -648,7 +647,6 @@ ef10_nvram_buffer_validate(
 	int pos;
 	efx_rc_t rc;
 
-	_NOTE(ARGUNUSED(enp, partn))
 	EFX_STATIC_ASSERT(sizeof (*header) <= EF10_NVRAM_CHUNK);
 
 	if ((partn_data == NULL) || (partn_size == 0)) {
@@ -675,26 +673,32 @@ ef10_nvram_buffer_validate(
 		goto fail4;
 	}
 
+	/* Check partition header matches partn */
+	if (__LE_TO_CPU_16(header->type_id) != partn) {
+		rc = EINVAL;
+		goto fail5;
+	}
+
 	/* Check partition ends with PARTITION_TRAILER and END tags */
 	if ((rc = tlv_find(&cursor, TLV_TAG_PARTITION_TRAILER)) != 0) {
 		rc = EINVAL;
-		goto fail5;
+		goto fail6;
 	}
 	trailer = (struct tlv_partition_trailer *)tlv_item(&cursor);
 
 	if ((rc = tlv_advance(&cursor)) != 0) {
 		rc = EINVAL;
-		goto fail6;
+		goto fail7;
 	}
 	if (tlv_tag(&cursor) != TLV_TAG_END) {
 		rc = EINVAL;
-		goto fail7;
+		goto fail8;
 	}
 
 	/* Check generation counts are consistent */
 	if (trailer->generation != header->generation) {
 		rc = EINVAL;
-		goto fail8;
+		goto fail9;
 	}
 
 	/* Verify partition checksum */
@@ -704,11 +708,13 @@ ef10_nvram_buffer_validate(
 	}
 	if (cksum != 0) {
 		rc = EINVAL;
-		goto fail9;
+		goto fail10;
 	}
 
 	return (0);
 
+fail10:
+	EFSYS_PROBE(fail10);
 fail9:
 	EFSYS_PROBE(fail9);
 fail8:
@@ -731,13 +737,24 @@ fail1:
 	return (rc);
 }
 
+			void
+ef10_nvram_buffer_init(
+	__out_bcount(buffer_size)
+				caddr_t bufferp,
+	__in			size_t buffer_size)
+{
+	uint32_t *buf = (uint32_t *)bufferp;
+
+	memset(buf, 0xff, buffer_size);
 
+	tlv_init_block(buf);
+}
 
 	__checkReturn		efx_rc_t
 ef10_nvram_buffer_create(
-	__in			efx_nic_t *enp,
-	__in			uint16_t partn_type,
-	__in_bcount(partn_size)	caddr_t partn_data,
+	__in			uint32_t partn_type,
+	__out_bcount(partn_size)
+				caddr_t partn_data,
 	__in			size_t partn_size)
 {
 	uint32_t *buf = (uint32_t *)partn_data;
@@ -753,9 +770,8 @@ ef10_nvram_buffer_create(
 		goto fail1;
 	}
 
-	memset(buf, 0xff, partn_size);
+	ef10_nvram_buffer_init(partn_data, partn_size);
 
-	tlv_init_block(buf);
 	if ((rc = tlv_init_cursor(&cursor, buf,
 	    (uint32_t *)((uint8_t *)buf + partn_size),
 	    buf)) != 0) {
@@ -787,7 +803,7 @@ ef10_nvram_buffer_create(
 		goto fail6;
 
 	/* Check that the partition is valid. */
-	if ((rc = ef10_nvram_buffer_validate(enp, partn_type,
+	if ((rc = ef10_nvram_buffer_validate(partn_type,
 	    partn_data, partn_size)) != 0)
 		goto fail7;
 
@@ -959,22 +975,65 @@ ef10_nvram_buffer_find_item(
 }
 
 	__checkReturn		efx_rc_t
+ef10_nvram_buffer_peek_item(
+	__in_bcount(buffer_size)
+				caddr_t bufferp,
+	__in			size_t buffer_size,
+	__in			uint32_t offset,
+	__out			uint32_t *tagp,
+	__out			uint32_t *lengthp,
+	__out			uint32_t *value_offsetp)
+{
+	efx_rc_t rc;
+	tlv_cursor_t cursor;
+	uint32_t tag;
+
+	if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp,
+			buffer_size, offset)) != 0) {
+		goto fail1;
+	}
+
+	tag = tlv_tag(&cursor);
+	*tagp = tag;
+	if (tag == TLV_TAG_END) {
+		/*
+		 * To allow stepping over the END tag, report the full tag
+		 * length and a zero length value.
+		 */
+		*lengthp = sizeof (tag);
+		*value_offsetp = sizeof (tag);
+	} else {
+		*lengthp = byte_offset(tlv_next_item_ptr(&cursor),
+			    cursor.current);
+		*value_offsetp = byte_offset((uint32_t *)tlv_value(&cursor),
+			    cursor.current);
+	}
+	return (0);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+	__checkReturn		efx_rc_t
 ef10_nvram_buffer_get_item(
 	__in_bcount(buffer_size)
 				caddr_t bufferp,
 	__in			size_t buffer_size,
 	__in			uint32_t offset,
 	__in			uint32_t length,
-	__out_bcount_part(item_max_size, *lengthp)
-				caddr_t itemp,
-	__in			size_t item_max_size,
+	__out			uint32_t *tagp,
+	__out_bcount_part(value_max_size, *lengthp)
+				caddr_t valuep,
+	__in			size_t value_max_size,
 	__out			uint32_t *lengthp)
 {
 	efx_rc_t rc;
 	tlv_cursor_t cursor;
-	uint32_t item_length;
+	uint32_t value_length;
 
-	if (item_max_size < length) {
+	if (buffer_size < (offset + length)) {
 		rc = ENOSPC;
 		goto fail1;
 	}
@@ -984,14 +1043,15 @@ ef10_nvram_buffer_get_item(
 		goto fail2;
 	}
 
-	item_length = tlv_length(&cursor);
-	if (length < item_length) {
+	value_length = tlv_length(&cursor);
+	if (value_max_size < value_length) {
 		rc = ENOSPC;
 		goto fail3;
 	}
-	memcpy(itemp, tlv_value(&cursor), item_length);
+	memcpy(valuep, tlv_value(&cursor), value_length);
 
-	*lengthp = item_length;
+	*tagp = tlv_tag(&cursor);
+	*lengthp = value_length;
 
 	return (0);
 
@@ -1011,7 +1071,45 @@ ef10_nvram_buffer_insert_item(
 				caddr_t bufferp,
 	__in			size_t buffer_size,
 	__in			uint32_t offset,
-	__in_bcount(length)	caddr_t keyp,
+	__in			uint32_t tag,
+	__in_bcount(length)	caddr_t valuep,
+	__in			uint32_t length,
+	__out			uint32_t *lengthp)
+{
+	efx_rc_t rc;
+	tlv_cursor_t cursor;
+
+	if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp,
+			buffer_size, offset)) != 0) {
+		goto fail1;
+	}
+
+	rc = tlv_insert(&cursor, tag, (uint8_t *)valuep, length);
+
+	if (rc != 0)
+		goto fail2;
+
+	*lengthp = byte_offset(tlv_next_item_ptr(&cursor),
+		    cursor.current);
+
+	return (0);
+
+fail2:
+	EFSYS_PROBE(fail2);
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+	__checkReturn		efx_rc_t
+ef10_nvram_buffer_modify_item(
+	__in_bcount(buffer_size)
+				caddr_t bufferp,
+	__in			size_t buffer_size,
+	__in			uint32_t offset,
+	__in			uint32_t tag,
+	__in_bcount(length)	caddr_t valuep,
 	__in			uint32_t length,
 	__out			uint32_t *lengthp)
 {
@@ -1023,7 +1121,7 @@ ef10_nvram_buffer_insert_item(
 		goto fail1;
 	}
 
-	rc = tlv_insert(&cursor, TLV_TAG_LICENSE, (uint8_t *)keyp, length);
+	rc = tlv_modify(&cursor, tag, (uint8_t *)valuep, length);
 
 	if (rc != 0) {
 		goto fail2;
@@ -1042,6 +1140,7 @@ fail1:
 	return (rc);
 }
 
+
 	__checkReturn		efx_rc_t
 ef10_nvram_buffer_delete_item(
 	__in_bcount(buffer_size)
@@ -1808,7 +1907,7 @@ ef10_nvram_partn_write_segment_tlv(
 		goto fail7;
 
 	/* Unlock the partition */
-	ef10_nvram_partn_unlock(enp, partn, NULL);
+	(void) ef10_nvram_partn_unlock(enp, partn, NULL);
 
 	EFSYS_KMEM_FREE(enp->en_esip, partn_size, partn_data);
 
@@ -1823,7 +1922,7 @@ fail5:
 fail4:
 	EFSYS_PROBE(fail4);
 
-	ef10_nvram_partn_unlock(enp, partn, NULL);
+	(void) ef10_nvram_partn_unlock(enp, partn, NULL);
 fail3:
 	EFSYS_PROBE(fail3);
 
@@ -2000,7 +2099,7 @@ ef10_nvram_partn_write(
 	__in			efx_nic_t *enp,
 	__in			uint32_t partn,
 	__in			unsigned int offset,
-	__out_bcount(size)	caddr_t data,
+	__in_bcount(size)	caddr_t data,
 	__in			size_t size)
 {
 	size_t chunk;
@@ -2168,6 +2267,8 @@ static ef10_parttbl_entry_t medford2_parttbl[] = {
 	PARTN_MAP_ENTRY(LICENSE,		ALL,	LICENSE),
 	PARTN_MAP_ENTRY(EXPANSION_UEFI,		ALL,	UEFIROM),
 	PARTN_MAP_ENTRY(MUM_FIRMWARE,		ALL,	MUM_FIRMWARE),
+	PARTN_MAP_ENTRY(DYNCONFIG_DEFAULTS,	ALL,	DYNCONFIG_DEFAULTS),
+	PARTN_MAP_ENTRY(ROMCONFIG_DEFAULTS,	ALL,	ROMCONFIG_DEFAULTS),
 };
 
 static	__checkReturn		efx_rc_t
diff --git a/drivers/net/sfc/base/ef10_phy.c b/drivers/net/sfc/base/ef10_phy.c
index 84acb70a..84ccdde5 100644
--- a/drivers/net/sfc/base/ef10_phy.c
+++ b/drivers/net/sfc/base/ef10_phy.c
@@ -98,8 +98,10 @@ mcdi_phy_decode_link_mode(
 	__in		uint32_t link_flags,
 	__in		unsigned int speed,
 	__in		unsigned int fcntl,
+	__in		uint32_t fec,
 	__out		efx_link_mode_t *link_modep,
-	__out		unsigned int *fcntlp)
+	__out		unsigned int *fcntlp,
+	__out		efx_phy_fec_type_t *fecp)
 {
 	boolean_t fd = !!(link_flags &
 		    (1 << MC_CMD_GET_LINK_OUT_FULL_DUPLEX_LBN));
@@ -141,6 +143,22 @@ mcdi_phy_decode_link_mode(
 		EFSYS_PROBE1(mc_pcol_error, int, fcntl);
 		*fcntlp = 0;
 	}
+
+	switch (fec) {
+	case MC_CMD_FEC_NONE:
+		*fecp = EFX_PHY_FEC_NONE;
+		break;
+	case MC_CMD_FEC_BASER:
+		*fecp = EFX_PHY_FEC_BASER;
+		break;
+	case MC_CMD_FEC_RS:
+		*fecp = EFX_PHY_FEC_RS;
+		break;
+	default:
+		EFSYS_PROBE1(mc_pcol_error, int, fec);
+		*fecp = EFX_PHY_FEC_NONE;
+		break;
+	}
 }
 
 
@@ -154,6 +172,7 @@ ef10_phy_link_ev(
 	unsigned int link_flags;
 	unsigned int speed;
 	unsigned int fcntl;
+	efx_phy_fec_type_t fec = MC_CMD_FEC_NONE;
 	efx_link_mode_t link_mode;
 	uint32_t lp_cap_mask;
 
@@ -191,7 +210,8 @@ ef10_phy_link_ev(
 	link_flags = MCDI_EV_FIELD(eqp, LINKCHANGE_LINK_FLAGS);
 	mcdi_phy_decode_link_mode(enp, link_flags, speed,
 				    MCDI_EV_FIELD(eqp, LINKCHANGE_FCNTL),
-				    &link_mode, &fcntl);
+				    MC_CMD_FEC_NONE, &link_mode,
+				    &fcntl, &fec);
 	mcdi_phy_decode_cap(MCDI_EV_FIELD(eqp, LINKCHANGE_LP_CAP),
 			    &lp_cap_mask);
 
@@ -242,16 +262,16 @@ ef10_phy_get_link(
 	__out		ef10_link_state_t *elsp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_LINK_IN_LEN,
-			    MC_CMD_GET_LINK_OUT_LEN)];
+	uint32_t fec;
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_LINK_IN_LEN,
+		MC_CMD_GET_LINK_OUT_V2_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_LINK;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_LINK_IN_LEN;
 	req.emr_out_buf = payload;
-	req.emr_out_length = MC_CMD_GET_LINK_OUT_LEN;
+	req.emr_out_length = MC_CMD_GET_LINK_OUT_V2_LEN;
 
 	efx_mcdi_execute(enp, &req);
 
@@ -266,14 +286,28 @@ ef10_phy_get_link(
 	}
 
 	mcdi_phy_decode_cap(MCDI_OUT_DWORD(req, GET_LINK_OUT_CAP),
-			    &elsp->els_adv_cap_mask);
+			    &elsp->epls.epls_adv_cap_mask);
 	mcdi_phy_decode_cap(MCDI_OUT_DWORD(req, GET_LINK_OUT_LP_CAP),
-			    &elsp->els_lp_cap_mask);
+			    &elsp->epls.epls_lp_cap_mask);
+
+	if (req.emr_out_length_used < MC_CMD_GET_LINK_OUT_V2_LEN)
+		fec = MC_CMD_FEC_NONE;
+	else
+		fec = MCDI_OUT_DWORD(req, GET_LINK_OUT_V2_FEC_TYPE);
 
 	mcdi_phy_decode_link_mode(enp, MCDI_OUT_DWORD(req, GET_LINK_OUT_FLAGS),
 			    MCDI_OUT_DWORD(req, GET_LINK_OUT_LINK_SPEED),
 			    MCDI_OUT_DWORD(req, GET_LINK_OUT_FCNTL),
-			    &elsp->els_link_mode, &elsp->els_fcntl);
+			    fec, &elsp->epls.epls_link_mode,
+			    &elsp->epls.epls_fcntl, &elsp->epls.epls_fec);
+
+	if (req.emr_out_length_used < MC_CMD_GET_LINK_OUT_V2_LEN) {
+		elsp->epls.epls_ld_cap_mask = 0;
+	} else {
+		mcdi_phy_decode_cap(MCDI_OUT_DWORD(req, GET_LINK_OUT_V2_LD_CAP),
+				    &elsp->epls.epls_ld_cap_mask);
+	}
+
 
 #if EFSYS_OPT_LOOPBACK
 	/*
@@ -301,8 +335,8 @@ ef10_phy_reconfigure(
 {
 	efx_port_t *epp = &(enp->en_port);
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_SET_LINK_IN_LEN,
-			    MC_CMD_SET_LINK_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SET_LINK_IN_LEN,
+		MC_CMD_SET_LINK_OUT_LEN);
 	uint32_t cap_mask;
 #if EFSYS_OPT_PHY_LED_CONTROL
 	unsigned int led_mode;
@@ -316,7 +350,6 @@ ef10_phy_reconfigure(
 	if (supported == B_FALSE)
 		goto out;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_SET_LINK;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_SET_LINK_IN_LEN;
@@ -464,12 +497,11 @@ ef10_phy_verify(
 	__in		efx_nic_t *enp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_PHY_STATE_IN_LEN,
-			    MC_CMD_GET_PHY_STATE_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_PHY_STATE_IN_LEN,
+		MC_CMD_GET_PHY_STATE_OUT_LEN);
 	uint32_t state;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_PHY_STATE;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_PHY_STATE_IN_LEN;
@@ -518,6 +550,29 @@ ef10_phy_oui_get(
 	return (ENOTSUP);
 }
 
+	__checkReturn	efx_rc_t
+ef10_phy_link_state_get(
+	__in		efx_nic_t *enp,
+	__out		efx_phy_link_state_t  *eplsp)
+{
+	efx_rc_t rc;
+	ef10_link_state_t els;
+
+	/* Obtain the active link state */
+	if ((rc = ef10_phy_get_link(enp, &els)) != 0)
+		goto fail1;
+
+	*eplsp = els.epls;
+
+	return (0);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+
 #if EFSYS_OPT_PHY_STATS
 
 	__checkReturn				efx_rc_t
@@ -583,22 +638,34 @@ ef10_bist_poll(
 	unsigned long *valuesp,
 	__in			size_t count)
 {
+	/*
+	 * MCDI_CTL_SDU_LEN_MAX_V1 is large enough cover all BIST results,
+	 * whilst not wasting stack.
+	 */
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_POLL_BIST_IN_LEN,
+		MCDI_CTL_SDU_LEN_MAX_V1);
 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_POLL_BIST_IN_LEN,
-			    MCDI_CTL_SDU_LEN_MAX)];
 	uint32_t value_mask = 0;
 	uint32_t result;
 	efx_rc_t rc;
 
+	EFX_STATIC_ASSERT(MC_CMD_POLL_BIST_OUT_LEN <=
+	    MCDI_CTL_SDU_LEN_MAX_V1);
+	EFX_STATIC_ASSERT(MC_CMD_POLL_BIST_OUT_SFT9001_LEN <=
+	    MCDI_CTL_SDU_LEN_MAX_V1);
+	EFX_STATIC_ASSERT(MC_CMD_POLL_BIST_OUT_MRSFP_LEN <=
+	    MCDI_CTL_SDU_LEN_MAX_V1);
+	EFX_STATIC_ASSERT(MC_CMD_POLL_BIST_OUT_MEM_LEN <=
+	    MCDI_CTL_SDU_LEN_MAX_V1);
+
 	_NOTE(ARGUNUSED(type))
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_POLL_BIST;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_POLL_BIST_IN_LEN;
 	req.emr_out_buf = payload;
-	req.emr_out_length = MCDI_CTL_SDU_LEN_MAX;
+	req.emr_out_length = MCDI_CTL_SDU_LEN_MAX_V1;
 
 	efx_mcdi_execute(enp, &req);
 
diff --git a/drivers/net/sfc/base/ef10_rx.c b/drivers/net/sfc/base/ef10_rx.c
index 313a3691..3c8f4f3b 100644
--- a/drivers/net/sfc/base/ef10_rx.c
+++ b/drivers/net/sfc/base/ef10_rx.c
@@ -29,8 +29,8 @@ efx_mcdi_init_rxq(
 {
 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_INIT_RXQ_V3_IN_LEN,
-			    MC_CMD_INIT_RXQ_V3_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_INIT_RXQ_V3_IN_LEN,
+		MC_CMD_INIT_RXQ_V3_OUT_LEN);
 	int npages = EFX_RXQ_NBUFS(ndescs);
 	int i;
 	efx_qword_t *dma_addr;
@@ -73,7 +73,6 @@ efx_mcdi_init_rxq(
 		want_outer_classes = B_FALSE;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_INIT_RXQ;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_INIT_RXQ_V3_IN_LEN;
@@ -146,11 +145,10 @@ efx_mcdi_fini_rxq(
 	__in		uint32_t instance)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_FINI_RXQ_IN_LEN,
-			    MC_CMD_FINI_RXQ_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_FINI_RXQ_IN_LEN,
+		MC_CMD_FINI_RXQ_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_FINI_RXQ;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_FINI_RXQ_IN_LEN;
@@ -188,8 +186,8 @@ efx_mcdi_rss_context_alloc(
 	__out		uint32_t *rss_contextp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN,
-			    MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN,
+		MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN);
 	uint32_t rss_context;
 	uint32_t context_type;
 	efx_rc_t rc;
@@ -211,7 +209,6 @@ efx_mcdi_rss_context_alloc(
 		goto fail2;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_RSS_CONTEXT_ALLOC;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN;
@@ -274,8 +271,8 @@ efx_mcdi_rss_context_free(
 	__in		uint32_t rss_context)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_FREE_IN_LEN,
-			    MC_CMD_RSS_CONTEXT_FREE_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_RSS_CONTEXT_FREE_IN_LEN,
+		MC_CMD_RSS_CONTEXT_FREE_OUT_LEN);
 	efx_rc_t rc;
 
 	if (rss_context == EF10_RSS_CONTEXT_INVALID) {
@@ -283,7 +280,6 @@ efx_mcdi_rss_context_free(
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_RSS_CONTEXT_FREE;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_RSS_CONTEXT_FREE_IN_LEN;
@@ -318,14 +314,9 @@ efx_mcdi_rss_context_set_flags(
 	__in		efx_rx_hash_type_t type)
 {
 	efx_nic_cfg_t *encp = &enp->en_nic_cfg;
-	efx_rx_hash_type_t type_ipv4;
-	efx_rx_hash_type_t type_ipv4_tcp;
-	efx_rx_hash_type_t type_ipv6;
-	efx_rx_hash_type_t type_ipv6_tcp;
-	efx_rx_hash_type_t modes;
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_LEN,
-			    MC_CMD_RSS_CONTEXT_SET_FLAGS_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_LEN,
+		MC_CMD_RSS_CONTEXT_SET_FLAGS_OUT_LEN);
 	efx_rc_t rc;
 
 	EFX_STATIC_ASSERT(EFX_RX_CLASS_IPV4_TCP_LBN ==
@@ -350,7 +341,6 @@ efx_mcdi_rss_context_set_flags(
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_FLAGS;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_LEN;
@@ -360,57 +350,38 @@ efx_mcdi_rss_context_set_flags(
 	MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_FLAGS_IN_RSS_CONTEXT_ID,
 	    rss_context);
 
-	type_ipv4 = EFX_RX_HASH(IPV4, 2TUPLE) | EFX_RX_HASH(IPV4_TCP, 2TUPLE) |
-		    EFX_RX_HASH(IPV4_UDP, 2TUPLE);
-	type_ipv4_tcp = EFX_RX_HASH(IPV4_TCP, 4TUPLE);
-	type_ipv6 = EFX_RX_HASH(IPV6, 2TUPLE) | EFX_RX_HASH(IPV6_TCP, 2TUPLE) |
-		    EFX_RX_HASH(IPV6_UDP, 2TUPLE);
-	type_ipv6_tcp = EFX_RX_HASH(IPV6_TCP, 4TUPLE);
-
-	/*
-	 * Create a copy of the original hash type.
-	 * The copy will be used to fill in RSS_MODE bits and
-	 * may be cleared beforehand. The original variable
-	 * and, thus, EN bits will remain unaffected.
-	 */
-	modes = type;
-
 	/*
 	 * If the firmware lacks support for additional modes, RSS_MODE
 	 * fields must contain zeros, otherwise the operation will fail.
 	 */
 	if (encp->enc_rx_scale_additional_modes_supported == B_FALSE)
-		modes = 0;
-
-#define	EXTRACT_RSS_MODE(_type, _class)		\
-	(EFX_EXTRACT_NATIVE(_type, 0, 31,	\
-	EFX_LOW_BIT(EFX_RX_CLASS_##_class),	\
-	EFX_HIGH_BIT(EFX_RX_CLASS_##_class)) &	\
-	EFX_MASK32(EFX_RX_CLASS_##_class))
+		type &= EFX_RX_HASH_LEGACY_MASK;
 
 	MCDI_IN_POPULATE_DWORD_10(req, RSS_CONTEXT_SET_FLAGS_IN_FLAGS,
 	    RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_IPV4_EN,
-	    ((type & type_ipv4) == type_ipv4) ? 1 : 0,
+	    (type & EFX_RX_HASH_IPV4) ? 1 : 0,
 	    RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_TCPV4_EN,
-	    ((type & type_ipv4_tcp) == type_ipv4_tcp) ? 1 : 0,
+	    (type & EFX_RX_HASH_TCPIPV4) ? 1 : 0,
 	    RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_IPV6_EN,
-	    ((type & type_ipv6) == type_ipv6) ? 1 : 0,
+	    (type & EFX_RX_HASH_IPV6) ? 1 : 0,
 	    RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_TCPV6_EN,
-	    ((type & type_ipv6_tcp) == type_ipv6_tcp) ? 1 : 0,
+	    (type & EFX_RX_HASH_TCPIPV6) ? 1 : 0,
 	    RSS_CONTEXT_SET_FLAGS_IN_TCP_IPV4_RSS_MODE,
-	    EXTRACT_RSS_MODE(modes, IPV4_TCP),
+	    (type >> EFX_RX_CLASS_IPV4_TCP_LBN) &
+	    EFX_MASK32(EFX_RX_CLASS_IPV4_TCP),
 	    RSS_CONTEXT_SET_FLAGS_IN_UDP_IPV4_RSS_MODE,
-	    EXTRACT_RSS_MODE(modes, IPV4_UDP),
+	    (type >> EFX_RX_CLASS_IPV4_UDP_LBN) &
+	    EFX_MASK32(EFX_RX_CLASS_IPV4_UDP),
 	    RSS_CONTEXT_SET_FLAGS_IN_OTHER_IPV4_RSS_MODE,
-	    EXTRACT_RSS_MODE(modes, IPV4),
+	    (type >> EFX_RX_CLASS_IPV4_LBN) & EFX_MASK32(EFX_RX_CLASS_IPV4),
 	    RSS_CONTEXT_SET_FLAGS_IN_TCP_IPV6_RSS_MODE,
-	    EXTRACT_RSS_MODE(modes, IPV6_TCP),
+	    (type >> EFX_RX_CLASS_IPV6_TCP_LBN) &
+	    EFX_MASK32(EFX_RX_CLASS_IPV6_TCP),
 	    RSS_CONTEXT_SET_FLAGS_IN_UDP_IPV6_RSS_MODE,
-	    EXTRACT_RSS_MODE(modes, IPV6_UDP),
+	    (type >> EFX_RX_CLASS_IPV6_UDP_LBN) &
+	    EFX_MASK32(EFX_RX_CLASS_IPV6_UDP),
 	    RSS_CONTEXT_SET_FLAGS_IN_OTHER_IPV6_RSS_MODE,
-	    EXTRACT_RSS_MODE(modes, IPV6));
-
-#undef EXTRACT_RSS_MODE
+	    (type >> EFX_RX_CLASS_IPV6_LBN) & EFX_MASK32(EFX_RX_CLASS_IPV6));
 
 	efx_mcdi_execute(enp, &req);
 
@@ -439,8 +410,8 @@ efx_mcdi_rss_context_set_key(
 	__in		size_t n)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_KEY_IN_LEN,
-			    MC_CMD_RSS_CONTEXT_SET_KEY_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_RSS_CONTEXT_SET_KEY_IN_LEN,
+		MC_CMD_RSS_CONTEXT_SET_KEY_OUT_LEN);
 	efx_rc_t rc;
 
 	if (rss_context == EF10_RSS_CONTEXT_INVALID) {
@@ -448,7 +419,6 @@ efx_mcdi_rss_context_set_key(
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_KEY;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_KEY_IN_LEN;
@@ -496,8 +466,8 @@ efx_mcdi_rss_context_set_table(
 	__in		size_t n)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_TABLE_IN_LEN,
-			    MC_CMD_RSS_CONTEXT_SET_TABLE_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_RSS_CONTEXT_SET_TABLE_IN_LEN,
+		MC_CMD_RSS_CONTEXT_SET_TABLE_OUT_LEN);
 	uint8_t *req_table;
 	int i, rc;
 
@@ -506,7 +476,6 @@ efx_mcdi_rss_context_set_table(
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_TABLE;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_TABLE_IN_LEN;
diff --git a/drivers/net/sfc/base/ef10_signed_image_layout.h b/drivers/net/sfc/base/ef10_signed_image_layout.h
index a35d1601..c25ffe2f 100644
--- a/drivers/net/sfc/base/ef10_signed_image_layout.h
+++ b/drivers/net/sfc/base/ef10_signed_image_layout.h
@@ -4,6 +4,14 @@
  * All rights reserved.
  */
 
+/*
+ * This is NOT the original source file. Do NOT edit it.
+ * To update the image layout headers, please edit the copy in
+ * the sfregistry repo and then, in that repo,
+ * "make layout_headers" or "make export" to
+ * regenerate and export all types of headers.
+ */
+
 /* These structures define the layouts for the signed firmware image binary
  * saved in NVRAM. The original image is in the Cryptographic message
  * syntax (CMS) format which contains the bootable firmware binary plus the
diff --git a/drivers/net/sfc/base/ef10_tx.c b/drivers/net/sfc/base/ef10_tx.c
index 7d27f710..5f3df42b 100644
--- a/drivers/net/sfc/base/ef10_tx.c
+++ b/drivers/net/sfc/base/ef10_tx.c
@@ -31,8 +31,8 @@ efx_mcdi_init_txq(
 	__in		efsys_mem_t *esmp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_INIT_TXQ_IN_LEN(EFX_TXQ_MAX_BUFS),
-			    MC_CMD_INIT_TXQ_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_INIT_TXQ_IN_LEN(EFX_TXQ_MAX_BUFS),
+		MC_CMD_INIT_TXQ_OUT_LEN);
 	efx_qword_t *dma_addr;
 	uint64_t addr;
 	int npages;
@@ -53,7 +53,6 @@ efx_mcdi_init_txq(
 		goto fail2;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_INIT_TXQ;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_INIT_TXQ_IN_LEN(npages);
@@ -120,11 +119,10 @@ efx_mcdi_fini_txq(
 	__in		uint32_t instance)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_FINI_TXQ_IN_LEN,
-			    MC_CMD_FINI_TXQ_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_FINI_TXQ_IN_LEN,
+		MC_CMD_FINI_TXQ_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_FINI_TXQ;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_FINI_TXQ_IN_LEN;
@@ -278,7 +276,7 @@ ef10_tx_qpio_enable(
 
 fail3:
 	EFSYS_PROBE(fail3);
-	ef10_nic_pio_free(enp, etp->et_pio_bufnum, etp->et_pio_blknum);
+	(void) ef10_nic_pio_free(enp, etp->et_pio_bufnum, etp->et_pio_blknum);
 fail2:
 	EFSYS_PROBE(fail2);
 	etp->et_pio_size = 0;
@@ -296,10 +294,12 @@ ef10_tx_qpio_disable(
 
 	if (etp->et_pio_size != 0) {
 		/* Unlink the piobuf from this TXQ */
-		ef10_nic_pio_unlink(enp, etp->et_index);
+		if (ef10_nic_pio_unlink(enp, etp->et_index) != 0)
+			return;
 
 		/* Free the sub-allocated PIO block */
-		ef10_nic_pio_free(enp, etp->et_pio_bufnum, etp->et_pio_blknum);
+		(void) ef10_nic_pio_free(enp, etp->et_pio_bufnum,
+		    etp->et_pio_blknum);
 		etp->et_pio_size = 0;
 		etp->et_pio_write_offset = 0;
 	}
@@ -539,12 +539,9 @@ ef10_tx_qdesc_post(
 {
 	unsigned int added = *addedp;
 	unsigned int i;
-	efx_rc_t rc;
 
-	if (added - completed + ndescs > EFX_TXQ_LIMIT(etp->et_mask + 1)) {
-		rc = ENOSPC;
-		goto fail1;
-	}
+	if (added - completed + ndescs > EFX_TXQ_LIMIT(etp->et_mask + 1))
+		return (ENOSPC);
 
 	for (i = 0; i < ndescs; i++) {
 		efx_desc_t *edp = &ed[i];
@@ -564,11 +561,6 @@ ef10_tx_qdesc_post(
 
 	*addedp = added;
 	return (0);
-
-fail1:
-	EFSYS_PROBE1(fail1, efx_rc_t, rc);
-
-	return (rc);
 }
 
 	void
@@ -637,22 +629,22 @@ ef10_tx_qdesc_tso2_create(
 
 	EFSYS_ASSERT(count >= EFX_TX_FATSOV2_OPT_NDESCS);
 
-	EFX_POPULATE_QWORD_6(edp[0].ed_eq,
+	EFX_POPULATE_QWORD_5(edp[0].ed_eq,
 			    ESF_DZ_TX_DESC_IS_OPT, 1,
 			    ESF_DZ_TX_OPTION_TYPE,
 			    ESE_DZ_TX_OPTION_DESC_TSO,
 			    ESF_DZ_TX_TSO_OPTION_TYPE,
 			    ESE_DZ_TX_TSO_OPTION_DESC_FATSO2A,
 			    ESF_DZ_TX_TSO_IP_ID, ipv4_id,
-			    ESF_DZ_TX_TSO_OUTER_IPID, outer_ipv4_id,
 			    ESF_DZ_TX_TSO_TCP_SEQNO, tcp_seq);
-	EFX_POPULATE_QWORD_4(edp[1].ed_eq,
+	EFX_POPULATE_QWORD_5(edp[1].ed_eq,
 			    ESF_DZ_TX_DESC_IS_OPT, 1,
 			    ESF_DZ_TX_OPTION_TYPE,
 			    ESE_DZ_TX_OPTION_DESC_TSO,
 			    ESF_DZ_TX_TSO_OPTION_TYPE,
 			    ESE_DZ_TX_TSO_OPTION_DESC_FATSO2B,
-			    ESF_DZ_TX_TSO_TCP_MSS, tcp_mss);
+			    ESF_DZ_TX_TSO_TCP_MSS, tcp_mss,
+			    ESF_DZ_TX_TSO_OUTER_IPID, outer_ipv4_id);
 }
 
 	void
diff --git a/drivers/net/sfc/base/efx.h b/drivers/net/sfc/base/efx.h
index 5108b9b1..8e10e893 100644
--- a/drivers/net/sfc/base/efx.h
+++ b/drivers/net/sfc/base/efx.h
@@ -7,6 +7,7 @@
 #ifndef	_SYS_EFX_H
 #define	_SYS_EFX_H
 
+#include "efx_annote.h"
 #include "efsys.h"
 #include "efx_check.h"
 #include "efx_phy_ids.h"
@@ -154,6 +155,14 @@ extern	__checkReturn	efx_rc_t
 efx_nic_reset(
 	__in		efx_nic_t *enp);
 
+extern	__checkReturn	boolean_t
+efx_nic_hw_unavailable(
+	__in		efx_nic_t *enp);
+
+extern			void
+efx_nic_set_hw_unavailable(
+	__in		efx_nic_t *enp);
+
 #if EFSYS_OPT_DIAG
 
 extern	__checkReturn	efx_rc_t
@@ -661,77 +670,74 @@ efx_mon_init(
 #define	EFX_MON_STATS_PAGE_SIZE 0x100
 #define	EFX_MON_MASK_ELEMENT_SIZE 32
 
-/* START MKCONFIG GENERATED MonitorHeaderStatsBlock 400fdb0517af1fca */
+/* START MKCONFIG GENERATED MonitorHeaderStatsBlock 78b65c8d5af9747b */
 typedef enum efx_mon_stat_e {
-	EFX_MON_STAT_2_5V,
-	EFX_MON_STAT_VCCP1,
-	EFX_MON_STAT_VCC,
-	EFX_MON_STAT_5V,
-	EFX_MON_STAT_12V,
-	EFX_MON_STAT_VCCP2,
-	EFX_MON_STAT_EXT_TEMP,
-	EFX_MON_STAT_INT_TEMP,
-	EFX_MON_STAT_AIN1,
-	EFX_MON_STAT_AIN2,
-	EFX_MON_STAT_INT_COOLING,
-	EFX_MON_STAT_EXT_COOLING,
-	EFX_MON_STAT_1V,
-	EFX_MON_STAT_1_2V,
-	EFX_MON_STAT_1_8V,
-	EFX_MON_STAT_3_3V,
-	EFX_MON_STAT_1_2VA,
-	EFX_MON_STAT_VREF,
-	EFX_MON_STAT_VAOE,
+	EFX_MON_STAT_CONTROLLER_TEMP,
+	EFX_MON_STAT_PHY_COMMON_TEMP,
+	EFX_MON_STAT_CONTROLLER_COOLING,
+	EFX_MON_STAT_PHY0_TEMP,
+	EFX_MON_STAT_PHY0_COOLING,
+	EFX_MON_STAT_PHY1_TEMP,
+	EFX_MON_STAT_PHY1_COOLING,
+	EFX_MON_STAT_IN_1V0,
+	EFX_MON_STAT_IN_1V2,
+	EFX_MON_STAT_IN_1V8,
+	EFX_MON_STAT_IN_2V5,
+	EFX_MON_STAT_IN_3V3,
+	EFX_MON_STAT_IN_12V0,
+	EFX_MON_STAT_IN_1V2A,
+	EFX_MON_STAT_IN_VREF,
+	EFX_MON_STAT_OUT_VAOE,
 	EFX_MON_STAT_AOE_TEMP,
 	EFX_MON_STAT_PSU_AOE_TEMP,
 	EFX_MON_STAT_PSU_TEMP,
-	EFX_MON_STAT_FAN0,
-	EFX_MON_STAT_FAN1,
-	EFX_MON_STAT_FAN2,
-	EFX_MON_STAT_FAN3,
-	EFX_MON_STAT_FAN4,
-	EFX_MON_STAT_VAOE_IN,
-	EFX_MON_STAT_IAOE,
-	EFX_MON_STAT_IAOE_IN,
+	EFX_MON_STAT_FAN_0,
+	EFX_MON_STAT_FAN_1,
+	EFX_MON_STAT_FAN_2,
+	EFX_MON_STAT_FAN_3,
+	EFX_MON_STAT_FAN_4,
+	EFX_MON_STAT_IN_VAOE,
+	EFX_MON_STAT_OUT_IAOE,
+	EFX_MON_STAT_IN_IAOE,
 	EFX_MON_STAT_NIC_POWER,
-	EFX_MON_STAT_0_9V,
-	EFX_MON_STAT_I0_9V,
-	EFX_MON_STAT_I1_2V,
-	EFX_MON_STAT_0_9V_ADC,
-	EFX_MON_STAT_INT_TEMP2,
-	EFX_MON_STAT_VREG_TEMP,
-	EFX_MON_STAT_VREG_0_9V_TEMP,
-	EFX_MON_STAT_VREG_1_2V_TEMP,
-	EFX_MON_STAT_INT_VPTAT,
-	EFX_MON_STAT_INT_ADC_TEMP,
-	EFX_MON_STAT_EXT_VPTAT,
-	EFX_MON_STAT_EXT_ADC_TEMP,
+	EFX_MON_STAT_IN_0V9,
+	EFX_MON_STAT_IN_I0V9,
+	EFX_MON_STAT_IN_I1V2,
+	EFX_MON_STAT_IN_0V9_ADC,
+	EFX_MON_STAT_CONTROLLER_2_TEMP,
+	EFX_MON_STAT_VREG_INTERNAL_TEMP,
+	EFX_MON_STAT_VREG_0V9_TEMP,
+	EFX_MON_STAT_VREG_1V2_TEMP,
+	EFX_MON_STAT_CONTROLLER_VPTAT,
+	EFX_MON_STAT_CONTROLLER_INTERNAL_TEMP,
+	EFX_MON_STAT_CONTROLLER_VPTAT_EXTADC,
+	EFX_MON_STAT_CONTROLLER_INTERNAL_TEMP_EXTADC,
 	EFX_MON_STAT_AMBIENT_TEMP,
 	EFX_MON_STAT_AIRFLOW,
 	EFX_MON_STAT_VDD08D_VSS08D_CSR,
 	EFX_MON_STAT_VDD08D_VSS08D_CSR_EXTADC,
 	EFX_MON_STAT_HOTPOINT_TEMP,
-	EFX_MON_STAT_PHY_POWER_SWITCH_PORT0,
-	EFX_MON_STAT_PHY_POWER_SWITCH_PORT1,
+	EFX_MON_STAT_PHY_POWER_PORT0,
+	EFX_MON_STAT_PHY_POWER_PORT1,
 	EFX_MON_STAT_MUM_VCC,
-	EFX_MON_STAT_0V9_A,
-	EFX_MON_STAT_I0V9_A,
-	EFX_MON_STAT_0V9_A_TEMP,
-	EFX_MON_STAT_0V9_B,
-	EFX_MON_STAT_I0V9_B,
-	EFX_MON_STAT_0V9_B_TEMP,
+	EFX_MON_STAT_IN_0V9_A,
+	EFX_MON_STAT_IN_I0V9_A,
+	EFX_MON_STAT_VREG_0V9_A_TEMP,
+	EFX_MON_STAT_IN_0V9_B,
+	EFX_MON_STAT_IN_I0V9_B,
+	EFX_MON_STAT_VREG_0V9_B_TEMP,
 	EFX_MON_STAT_CCOM_AVREG_1V2_SUPPLY,
-	EFX_MON_STAT_CCOM_AVREG_1V2_SUPPLY_EXT_ADC,
+	EFX_MON_STAT_CCOM_AVREG_1V2_SUPPLY_EXTADC,
 	EFX_MON_STAT_CCOM_AVREG_1V8_SUPPLY,
-	EFX_MON_STAT_CCOM_AVREG_1V8_SUPPLY_EXT_ADC,
+	EFX_MON_STAT_CCOM_AVREG_1V8_SUPPLY_EXTADC,
 	EFX_MON_STAT_CONTROLLER_MASTER_VPTAT,
 	EFX_MON_STAT_CONTROLLER_MASTER_INTERNAL_TEMP,
-	EFX_MON_STAT_CONTROLLER_MASTER_VPTAT_EXT_ADC,
-	EFX_MON_STAT_CONTROLLER_MASTER_INTERNAL_TEMP_EXT_ADC,
+	EFX_MON_STAT_CONTROLLER_MASTER_VPTAT_EXTADC,
+	EFX_MON_STAT_CONTROLLER_MASTER_INTERNAL_TEMP_EXTADC,
 	EFX_MON_STAT_CONTROLLER_SLAVE_VPTAT,
 	EFX_MON_STAT_CONTROLLER_SLAVE_INTERNAL_TEMP,
-	EFX_MON_STAT_CONTROLLER_SLAVE_VPTAT_EXT_ADC,
-	EFX_MON_STAT_CONTROLLER_SLAVE_INTERNAL_TEMP_EXT_ADC,
+	EFX_MON_STAT_CONTROLLER_SLAVE_VPTAT_EXTADC,
+	EFX_MON_STAT_CONTROLLER_SLAVE_INTERNAL_TEMP_EXTADC,
 	EFX_MON_STAT_SODIMM_VOUT,
 	EFX_MON_STAT_SODIMM_0_TEMP,
 	EFX_MON_STAT_SODIMM_1_TEMP,
@@ -740,12 +746,12 @@ typedef enum efx_mon_stat_e {
 	EFX_MON_STAT_CONTROLLER_TDIODE_TEMP,
 	EFX_MON_STAT_BOARD_FRONT_TEMP,
 	EFX_MON_STAT_BOARD_BACK_TEMP,
-	EFX_MON_STAT_I1V8,
-	EFX_MON_STAT_I2V5,
-	EFX_MON_STAT_I3V3,
-	EFX_MON_STAT_I12V0,
-	EFX_MON_STAT_1_3V,
-	EFX_MON_STAT_I1V3,
+	EFX_MON_STAT_IN_I1V8,
+	EFX_MON_STAT_IN_I2V5,
+	EFX_MON_STAT_IN_I3V3,
+	EFX_MON_STAT_IN_I12V0,
+	EFX_MON_STAT_IN_1V3,
+	EFX_MON_STAT_IN_I1V3,
 	EFX_MON_NSTATS
 } efx_mon_stat_t;
 
@@ -759,11 +765,40 @@ typedef enum efx_mon_stat_state_e {
 	EFX_MON_STAT_STATE_NO_READING = 4,
 } efx_mon_stat_state_t;
 
+typedef enum efx_mon_stat_unit_e {
+	EFX_MON_STAT_UNIT_UNKNOWN = 0,
+	EFX_MON_STAT_UNIT_BOOL,
+	EFX_MON_STAT_UNIT_TEMP_C,
+	EFX_MON_STAT_UNIT_VOLTAGE_MV,
+	EFX_MON_STAT_UNIT_CURRENT_MA,
+	EFX_MON_STAT_UNIT_POWER_W,
+	EFX_MON_STAT_UNIT_RPM,
+	EFX_MON_NUNITS
+} efx_mon_stat_unit_t;
+
 typedef struct efx_mon_stat_value_s {
-	uint16_t	emsv_value;
-	uint16_t	emsv_state;
+	uint16_t		emsv_value;
+	efx_mon_stat_state_t	emsv_state;
+	efx_mon_stat_unit_t	emsv_unit;
 } efx_mon_stat_value_t;
 
+typedef struct efx_mon_limit_value_s {
+	uint16_t			emlv_warning_min;
+	uint16_t			emlv_warning_max;
+	uint16_t			emlv_fatal_min;
+	uint16_t			emlv_fatal_max;
+} efx_mon_stat_limits_t;
+
+typedef enum efx_mon_stat_portmask_e {
+	EFX_MON_STAT_PORTMAP_NONE = 0,
+	EFX_MON_STAT_PORTMAP_PORT0 = 1,
+	EFX_MON_STAT_PORTMAP_PORT1 = 2,
+	EFX_MON_STAT_PORTMAP_PORT2 = 3,
+	EFX_MON_STAT_PORTMAP_PORT3 = 4,
+	EFX_MON_STAT_PORTMAP_ALL = (-1),
+	EFX_MON_STAT_PORTMAP_UNKNOWN = (-2)
+} efx_mon_stat_portmask_t;
+
 #if EFSYS_OPT_NAMES
 
 extern					const char *
@@ -771,14 +806,39 @@ efx_mon_stat_name(
 	__in				efx_nic_t *enp,
 	__in				efx_mon_stat_t id);
 
+extern					const char *
+efx_mon_stat_description(
+	__in				efx_nic_t *enp,
+	__in				efx_mon_stat_t id);
+
 #endif	/* EFSYS_OPT_NAMES */
 
+extern	__checkReturn			boolean_t
+efx_mon_mcdi_to_efx_stat(
+	__in				int mcdi_index,
+	__out				efx_mon_stat_t *statp);
+
+extern	__checkReturn			boolean_t
+efx_mon_get_stat_unit(
+	__in				efx_mon_stat_t stat,
+	__out				efx_mon_stat_unit_t *unitp);
+
+extern	__checkReturn			boolean_t
+efx_mon_get_stat_portmap(
+	__in				efx_mon_stat_t stat,
+	__out				efx_mon_stat_portmask_t *maskp);
+
 extern	__checkReturn			efx_rc_t
 efx_mon_stats_update(
 	__in				efx_nic_t *enp,
 	__in				efsys_mem_t *esmp,
 	__inout_ecount(EFX_MON_NSTATS)	efx_mon_stat_value_t *values);
 
+extern	__checkReturn			efx_rc_t
+efx_mon_limits_update(
+	__in				efx_nic_t *enp,
+	__inout_ecount(EFX_MON_NSTATS)	efx_mon_stat_limits_t *values);
+
 #endif	/* EFSYS_OPT_MON_STATS */
 
 extern		void
@@ -970,12 +1030,39 @@ efx_phy_media_type_get(
 	__in		efx_nic_t *enp,
 	__out		efx_phy_media_type_t *typep);
 
+/*
+ * 2-wire device address of the base information in accordance with SFF-8472
+ * Diagnostic Monitoring Interface for Optical Transceivers section
+ * 4 Memory Organization.
+ */
+#define	EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_BASE	0xA0
+
+/*
+ * 2-wire device address of the digital diagnostics monitoring interface
+ * in accordance with SFF-8472 Diagnostic Monitoring Interface for Optical
+ * Transceivers section 4 Memory Organization.
+ */
+#define	EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_DDM	0xA2
+
+/*
+ * Hard wired 2-wire device address for QSFP+ in accordance with SFF-8436
+ * QSFP+ 10 Gbs 4X PLUGGABLE TRANSCEIVER section 7.4 Device Addressing and
+ * Operation.
+ */
+#define	EFX_PHY_MEDIA_INFO_DEV_ADDR_QSFP	0xA0
+
+/*
+ * Maximum accessible data offset for PHY module information.
+ */
+#define	EFX_PHY_MEDIA_INFO_MAX_OFFSET		0x100
+
+
 extern	__checkReturn		efx_rc_t
 efx_phy_module_get_info(
 	__in			efx_nic_t *enp,
 	__in			uint8_t dev_addr,
-	__in			uint8_t offset,
-	__in			uint8_t len,
+	__in			size_t offset,
+	__in			size_t len,
 	__out_bcount(len)	uint8_t *data);
 
 #if EFSYS_OPT_PHY_STATS
@@ -1194,6 +1281,7 @@ typedef struct efx_nic_cfg_s {
 	uint32_t		enc_rx_prefix_size;
 	uint32_t		enc_rx_buf_align_start;
 	uint32_t		enc_rx_buf_align_end;
+#if EFSYS_OPT_RX_SCALE
 	uint32_t		enc_rx_scale_max_exclusive_contexts;
 	/*
 	 * Mask of supported hash algorithms.
@@ -1206,6 +1294,7 @@ typedef struct efx_nic_cfg_s {
 	 */
 	boolean_t		enc_rx_scale_l4_hash_supported;
 	boolean_t		enc_rx_scale_additional_modes_supported;
+#endif /* EFSYS_OPT_RX_SCALE */
 #if EFSYS_OPT_LOOPBACK
 	efx_qword_t		enc_loopback_types[EFX_LINK_NMODES];
 #endif	/* EFSYS_OPT_LOOPBACK */
@@ -1240,6 +1329,7 @@ typedef struct efx_nic_cfg_s {
 	boolean_t		enc_bug35388_workaround;
 	boolean_t		enc_bug41750_workaround;
 	boolean_t		enc_bug61265_workaround;
+	boolean_t		enc_bug61297_workaround;
 	boolean_t		enc_rx_batching_enabled;
 	/* Maximum number of descriptors completed in an rx event. */
 	uint32_t		enc_rx_batch_max;
@@ -1483,6 +1573,8 @@ typedef enum efx_nvram_type_e {
 	EFX_NVRAM_LICENSE,
 	EFX_NVRAM_UEFIROM,
 	EFX_NVRAM_MUM_FIRMWARE,
+	EFX_NVRAM_DYNCONFIG_DEFAULTS,
+	EFX_NVRAM_ROMCONFIG_DEFAULTS,
 	EFX_NVRAM_NTYPES,
 } efx_nvram_type_t;
 
@@ -1608,6 +1700,87 @@ efx_bootcfg_write(
 	__in_bcount(size)	uint8_t *data,
 	__in			size_t size);
 
+
+/*
+ * Processing routines for buffers arranged in the DHCP/BOOTP option format
+ * (see https://tools.ietf.org/html/rfc1533)
+ *
+ * Summarising the format: the buffer is a sequence of options. All options
+ * begin with a tag octet, which uniquely identifies the option.  Fixed-
+ * length options without data consist of only a tag octet.  Only options PAD
+ * (0) and END (255) are fixed length.  All other options are variable-length
+ * with a length octet following the tag octet.  The value of the length
+ * octet does not include the two octets specifying the tag and length.  The
+ * length octet is followed by "length" octets of data.
+ *
+ * Option data may be a sequence of sub-options in the same format. The data
+ * content of the encapsulating option is one or more encapsulated sub-options,
+ * with no terminating END tag is required.
+ *
+ * To be valid, the top-level sequence of options should be terminated by an
+ * END tag. The buffer should be padded with the PAD byte.
+ *
+ * When stored to NVRAM, the DHCP option format buffer is preceded by a
+ * checksum octet. The full buffer (including after the END tag) contributes
+ * to the checksum, hence the need to fill the buffer to the end with PAD.
+ */
+
+#define	EFX_DHCP_END ((uint8_t)0xff)
+#define	EFX_DHCP_PAD ((uint8_t)0)
+
+#define	EFX_DHCP_ENCAP_OPT(encapsulator, encapsulated) \
+  (uint16_t)(((encapsulator) << 8) | (encapsulated))
+
+extern	__checkReturn		uint8_t
+efx_dhcp_csum(
+	__in_bcount(size)	uint8_t const *data,
+	__in			size_t size);
+
+extern	__checkReturn		efx_rc_t
+efx_dhcp_verify(
+	__in_bcount(size)	uint8_t const *data,
+	__in			size_t size,
+	__out_opt		size_t *usedp);
+
+extern	__checkReturn	efx_rc_t
+efx_dhcp_find_tag(
+	__in_bcount(buffer_length)	uint8_t *bufferp,
+	__in				size_t buffer_length,
+	__in				uint16_t opt,
+	__deref_out			uint8_t **valuepp,
+	__out				size_t *value_lengthp);
+
+extern	__checkReturn	efx_rc_t
+efx_dhcp_find_end(
+	__in_bcount(buffer_length)	uint8_t *bufferp,
+	__in				size_t buffer_length,
+	__deref_out			uint8_t **endpp);
+
+
+extern	__checkReturn	efx_rc_t
+efx_dhcp_delete_tag(
+	__inout_bcount(buffer_length)	uint8_t *bufferp,
+	__in				size_t buffer_length,
+	__in				uint16_t opt);
+
+extern	__checkReturn	efx_rc_t
+efx_dhcp_add_tag(
+	__inout_bcount(buffer_length)	uint8_t *bufferp,
+	__in				size_t buffer_length,
+	__in				uint16_t opt,
+	__in_bcount_opt(value_length)	uint8_t *valuep,
+	__in				size_t value_length);
+
+extern	__checkReturn	efx_rc_t
+efx_dhcp_update_tag(
+	__inout_bcount(buffer_length)	uint8_t *bufferp,
+	__in				size_t buffer_length,
+	__in				uint16_t opt,
+	__in				uint8_t *value_locationp,
+	__in_bcount_opt(value_length)	uint8_t *valuep,
+	__in				size_t value_length);
+
+
 #endif	/* EFSYS_OPT_BOOTCFG */
 
 #if EFSYS_OPT_IMAGE_LAYOUT
@@ -1689,7 +1862,8 @@ efx_check_reflash_image(
 
 extern	__checkReturn	efx_rc_t
 efx_build_signed_image_write_buffer(
-	__out		uint8_t			*bufferp,
+	__out_bcount(buffer_size)
+			uint8_t			*bufferp,
 	__in		uint32_t		buffer_size,
 	__in		efx_image_info_t	*infop,
 	__out		efx_image_header_t	**headerpp);
@@ -2122,7 +2296,7 @@ typedef enum efx_rx_hash_alg_e {
  *  - a combination of legacy flags
  *  - a combination of EFX_RX_HASH() flags
  */
-typedef unsigned int efx_rx_hash_type_t;
+typedef uint32_t efx_rx_hash_type_t;
 
 typedef enum efx_rx_hash_support_e {
 	EFX_RX_HASH_UNAVAILABLE = 0,	/* Hardware hash not inserted */
@@ -2223,7 +2397,8 @@ extern	__checkReturn				efx_rc_t
 efx_rx_scale_hash_flags_get(
 	__in					efx_nic_t *enp,
 	__in					efx_rx_hash_alg_t hash_alg,
-	__inout_ecount(EFX_RX_HASH_NFLAGS)	unsigned int *flags,
+	__out_ecount_part(max_nflags, *nflagsp)	unsigned int *flagsp,
+	__in					unsigned int max_nflags,
 	__out					unsigned int *nflagsp);
 
 extern	__checkReturn	efx_rc_t
@@ -2813,9 +2988,23 @@ efx_filter_spec_set_encap_type(
 	__in		efx_filter_inner_frame_match_t inner_frame_match);
 
 extern	__checkReturn	efx_rc_t
-efx_filter_spec_set_vxlan_full(
+efx_filter_spec_set_vxlan(
+	__inout		efx_filter_spec_t *spec,
+	__in		const uint8_t *vni,
+	__in		const uint8_t *inner_addr,
+	__in		const uint8_t *outer_addr);
+
+extern	__checkReturn	efx_rc_t
+efx_filter_spec_set_geneve(
+	__inout		efx_filter_spec_t *spec,
+	__in		const uint8_t *vni,
+	__in		const uint8_t *inner_addr,
+	__in		const uint8_t *outer_addr);
+
+extern	__checkReturn	efx_rc_t
+efx_filter_spec_set_nvgre(
 	__inout		efx_filter_spec_t *spec,
-	__in		const uint8_t *vxlan_id,
+	__in		const uint8_t *vsid,
 	__in		const uint8_t *inner_addr,
 	__in		const uint8_t *outer_addr);
 
@@ -3057,6 +3246,32 @@ efx_nic_set_fw_subvariant(
 
 #endif	/* EFSYS_OPT_FW_SUBVARIANT_AWARE */
 
+typedef enum efx_phy_fec_type_e {
+	EFX_PHY_FEC_NONE = 0,
+	EFX_PHY_FEC_BASER,
+	EFX_PHY_FEC_RS
+} efx_phy_fec_type_t;
+
+extern	__checkReturn	efx_rc_t
+efx_phy_fec_type_get(
+	__in		efx_nic_t *enp,
+	__out		efx_phy_fec_type_t *typep);
+
+typedef struct efx_phy_link_state_s {
+	uint32_t		epls_adv_cap_mask;
+	uint32_t		epls_lp_cap_mask;
+	uint32_t		epls_ld_cap_mask;
+	unsigned int		epls_fcntl;
+	efx_phy_fec_type_t	epls_fec;
+	efx_link_mode_t		epls_link_mode;
+} efx_phy_link_state_t;
+
+extern	__checkReturn	efx_rc_t
+efx_phy_link_state_get(
+	__in		efx_nic_t *enp,
+	__out		efx_phy_link_state_t  *eplsp);
+
+
 #ifdef	__cplusplus
 }
 #endif
diff --git a/drivers/net/sfc/base/efx_annote.h b/drivers/net/sfc/base/efx_annote.h
new file mode 100644
index 00000000..607b43c7
--- /dev/null
+++ b/drivers/net/sfc/base/efx_annote.h
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2018 Solarflare Communications Inc.
+ * All rights reserved.
+ */
+
+#ifndef	_SYS_EFX_ANNOTE_H
+#define	_SYS_EFX_ANNOTE_H
+
+#if defined(_WIN32) || defined(_WIN64)
+#define	EFX_HAVE_WINDOWS_ANNOTATIONS 1
+#else
+#define	EFX_HAVE_WINDOWS_ANNOTATIONS 0
+#endif	/* defined(_WIN32) || defined(_WIN64) */
+
+#if defined(__sun)
+#define	EFX_HAVE_SOLARIS_ANNOTATIONS 1
+#else
+#define	EFX_HAVE_SOLARIS_ANNOTATIONS 0
+#endif	/* defined(__sun) */
+
+#if !EFX_HAVE_WINDOWS_ANNOTATIONS
+
+/* Ignore Windows SAL annotations on other platforms */
+#define	__in
+#define	__in_opt
+#define	__in_ecount(_n)
+#define	__in_ecount_opt(_n)
+#define	__in_bcount(_n)
+#define	__in_bcount_opt(_n)
+
+#define	__out
+#define	__out_opt
+#define	__out_ecount(_n)
+#define	__out_ecount_opt(_n)
+#define	__out_ecount_part(_n, _l)
+#define	__out_bcount(_n)
+#define	__out_bcount_opt(_n)
+#define	__out_bcount_part(_n, _l)
+#define	__out_bcount_part_opt(_n, _l)
+
+#define	__deref_out
+#define	__deref_inout
+
+#define	__inout
+#define	__inout_opt
+#define	__inout_ecount(_n)
+#define	__inout_ecount_opt(_n)
+#define	__inout_bcount(_n)
+#define	__inout_bcount_opt(_n)
+#define	__inout_bcount_full_opt(_n)
+
+#define	__deref_out_bcount_opt(n)
+
+#define	__checkReturn
+#define	__success(_x)
+
+#define	__drv_when(_p, _c)
+
+#endif	/* !EFX_HAVE_WINDOWS_ANNOTATIONS */
+
+#if !EFX_HAVE_SOLARIS_ANNOTATIONS
+
+#if EFX_HAVE_WINDOWS_ANNOTATIONS
+
+/*
+ * Support some SunOS/Solaris style _NOTE() annotations
+ *
+ * At present with the facilities provided in the WDL and the SAL we can only
+ * easily act upon _NOTE(ARGUNUSED(arglist)) annotations.
+ *
+ * Intermediate macros to expand individual _NOTE annotation types into
+ * something the WDK or SAL can understand.  They shouldn't be used directly,
+ * for example EFX_NOTE_ARGUNUSED() is only used as an intermediate step on the
+ * transformation of _NOTE(ARGUNSED(arg1, arg2)) into
+ * UNREFERENCED_PARAMETER((arg1, arg2));
+ */
+#define	EFX_NOTE_ALIGNMENT(_fname, _n)
+#define	EFX_NOTE_ARGUNUSED(...)		UNREFERENCED_PARAMETER((__VA_ARGS__));
+#define	EFX_NOTE_CONSTANTCONDITION
+#define	EFX_NOTE_CONSTCOND
+#define	EFX_NOTE_EMPTY
+#define	EFX_NOTE_FALLTHROUGH
+#define	EFX_NOTE_FALLTHRU
+#define	EFX_NOTE_LINTED(_msg)
+#define	EFX_NOTE_NOTREACHED
+#define	EFX_NOTE_PRINTFLIKE(_n)
+#define	EFX_NOTE_SCANFLIKE(_n)
+#define	EFX_NOTE_VARARGS(_n)
+
+#define	_NOTE(_annotation)		EFX_NOTE_ ## _annotation
+
+#else
+
+/* Ignore Solaris annotations on other platforms */
+
+#define	_NOTE(_annotation)
+
+#endif	/* EFX_HAVE_WINDOWS_ANNOTATIONS */
+
+#endif	/* !EFX_HAVE_SOLARIS_ANNOTATIONS */
+
+#endif	/* _SYS_EFX_ANNOTE_H */
diff --git a/drivers/net/sfc/base/efx_bootcfg.c b/drivers/net/sfc/base/efx_bootcfg.c
index 715e18e8..3b0401e8 100644
--- a/drivers/net/sfc/base/efx_bootcfg.c
+++ b/drivers/net/sfc/base/efx_bootcfg.c
@@ -19,8 +19,33 @@
 #define	BOOTCFG_PER_PF   0x800
 #define	BOOTCFG_PF_COUNT 16
 
-#define	DHCP_END ((uint8_t)0xff)
-#define	DHCP_PAD ((uint8_t)0)
+#define	DHCP_OPT_HAS_VALUE(opt) \
+	(((opt) > EFX_DHCP_PAD) && ((opt) < EFX_DHCP_END))
+
+#define	DHCP_MAX_VALUE 255
+
+#define	DHCP_ENCAPSULATOR(encap_opt) ((encap_opt) >> 8)
+#define	DHCP_ENCAPSULATED(encap_opt) ((encap_opt) & 0xff)
+#define	DHCP_IS_ENCAP_OPT(opt) DHCP_OPT_HAS_VALUE(DHCP_ENCAPSULATOR(opt))
+
+typedef struct efx_dhcp_tag_hdr_s {
+	uint8_t		tag;
+	uint8_t		length;
+} efx_dhcp_tag_hdr_t;
+
+/*
+ * Length calculations for tags with value field. PAD and END
+ * have a fixed length of 1, with no length or value field.
+ */
+#define	DHCP_FULL_TAG_LENGTH(hdr) \
+	(sizeof (efx_dhcp_tag_hdr_t) + (hdr)->length)
+
+#define	DHCP_NEXT_TAG(hdr) \
+	((efx_dhcp_tag_hdr_t *)(((uint8_t *)(hdr)) + \
+	DHCP_FULL_TAG_LENGTH((hdr))))
+
+#define	DHCP_CALC_TAG_LENGTH(payload_len) \
+	((payload_len) + sizeof (efx_dhcp_tag_hdr_t))
 
 
 /* Report the layout of bootcfg sectors in NVRAM partition. */
@@ -110,14 +135,11 @@ fail1:
 }
 
 
-static	__checkReturn		uint8_t
-efx_bootcfg_csum(
-	__in			efx_nic_t *enp,
+	__checkReturn		uint8_t
+efx_dhcp_csum(
 	__in_bcount(size)	uint8_t const *data,
 	__in			size_t size)
 {
-	_NOTE(ARGUNUSED(enp))
-
 	unsigned int pos;
 	uint8_t checksum = 0;
 
@@ -126,9 +148,8 @@ efx_bootcfg_csum(
 	return (checksum);
 }
 
-static	__checkReturn		efx_rc_t
-efx_bootcfg_verify(
-	__in			efx_nic_t *enp,
+	__checkReturn		efx_rc_t
+efx_dhcp_verify(
 	__in_bcount(size)	uint8_t const *data,
 	__in			size_t size,
 	__out_opt		size_t *usedp)
@@ -144,12 +165,12 @@ efx_bootcfg_verify(
 
 		/* Consume tag */
 		tag = data[offset];
-		if (tag == DHCP_END) {
+		if (tag == EFX_DHCP_END) {
 			offset++;
 			used = offset;
 			break;
 		}
-		if (tag == DHCP_PAD) {
+		if (tag == EFX_DHCP_PAD) {
 			offset++;
 			continue;
 		}
@@ -171,8 +192,8 @@ efx_bootcfg_verify(
 		used = offset;
 	}
 
-	/* Checksum the entire sector, including bytes after any DHCP_END */
-	if (efx_bootcfg_csum(enp, data, size) != 0) {
+	/* Checksum the entire sector, including bytes after any EFX_DHCP_END */
+	if (efx_dhcp_csum(data, size) != 0) {
 		rc = EINVAL;
 		goto fail3;
 	}
@@ -193,6 +214,516 @@ fail1:
 }
 
 /*
+ * Walk the entire tag set looking for option. The sought option may be
+ * encapsulated. ENOENT indicates the walk completed without finding the
+ * option. If we run out of buffer during the walk the function will return
+ * ENOSPC.
+ */
+static	efx_rc_t
+efx_dhcp_walk_tags(
+	__deref_inout	uint8_t **tagpp,
+	__inout		size_t *buffer_sizep,
+	__in		uint16_t opt)
+{
+	efx_rc_t rc = 0;
+	boolean_t is_encap = B_FALSE;
+
+	if (DHCP_IS_ENCAP_OPT(opt)) {
+		/*
+		 * Look for the encapsulator and, if found, limit ourselves
+		 * to its payload. If it's not found then the entire tag
+		 * cannot be found, so the encapsulated opt search is
+		 * skipped.
+		 */
+		rc = efx_dhcp_walk_tags(tagpp, buffer_sizep,
+		    DHCP_ENCAPSULATOR(opt));
+		if (rc == 0) {
+			*buffer_sizep = ((efx_dhcp_tag_hdr_t *)*tagpp)->length;
+			(*tagpp) += sizeof (efx_dhcp_tag_hdr_t);
+		}
+		opt = DHCP_ENCAPSULATED(opt);
+		is_encap = B_TRUE;
+	}
+
+	EFSYS_ASSERT(!DHCP_IS_ENCAP_OPT(opt));
+
+	while (rc == 0) {
+		size_t size;
+
+		if (*buffer_sizep == 0) {
+			rc = ENOSPC;
+			goto fail1;
+		}
+
+		if (DHCP_ENCAPSULATED(**tagpp) == opt)
+			break;
+
+		if ((**tagpp) == EFX_DHCP_END) {
+			rc = ENOENT;
+			break;
+		} else if ((**tagpp) == EFX_DHCP_PAD) {
+			size = 1;
+		} else {
+			if (*buffer_sizep < sizeof (efx_dhcp_tag_hdr_t)) {
+				rc = ENOSPC;
+				goto fail2;
+			}
+
+			size =
+			    DHCP_FULL_TAG_LENGTH((efx_dhcp_tag_hdr_t *)*tagpp);
+		}
+
+		if (size > *buffer_sizep) {
+			rc = ENOSPC;
+			goto fail3;
+		}
+
+		(*tagpp) += size;
+		(*buffer_sizep) -= size;
+
+		if ((*buffer_sizep == 0) && is_encap) {
+			/* Search within encapulator tag finished */
+			rc = ENOENT;
+			break;
+		}
+	}
+
+	/*
+	 * Returns 0 if found otherwise ENOENT indicating search finished
+	 * correctly
+	 */
+	return (rc);
+
+fail3:
+	EFSYS_PROBE(fail3);
+fail2:
+	EFSYS_PROBE(fail2);
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+/*
+ * Locate value buffer for option in the given buffer.
+ * Returns 0 if found, ENOENT indicating search finished
+ * correctly, otherwise search failed before completion.
+ */
+	__checkReturn	efx_rc_t
+efx_dhcp_find_tag(
+	__in_bcount(buffer_length)	uint8_t *bufferp,
+	__in				size_t buffer_length,
+	__in				uint16_t opt,
+	__deref_out			uint8_t **valuepp,
+	__out				size_t *value_lengthp)
+{
+	efx_rc_t rc;
+	uint8_t *tagp = bufferp;
+	size_t len = buffer_length;
+
+	rc = efx_dhcp_walk_tags(&tagp, &len, opt);
+	if (rc == 0) {
+		efx_dhcp_tag_hdr_t *hdrp;
+
+		hdrp = (efx_dhcp_tag_hdr_t *)tagp;
+		*valuepp = (uint8_t *)(&hdrp[1]);
+		*value_lengthp = hdrp->length;
+	} else if (rc != ENOENT) {
+		goto fail1;
+	}
+
+	return (rc);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+/*
+ * Locate the end tag in the given buffer.
+ * Returns 0 if found, ENOENT indicating search finished
+ * correctly but end tag was not found; otherwise search
+ * failed before completion.
+ */
+	__checkReturn	efx_rc_t
+efx_dhcp_find_end(
+	__in_bcount(buffer_length)	uint8_t *bufferp,
+	__in				size_t buffer_length,
+	__deref_out			uint8_t **endpp)
+{
+	efx_rc_t rc;
+	uint8_t *endp = bufferp;
+	size_t len = buffer_length;
+
+	rc = efx_dhcp_walk_tags(&endp, &len, EFX_DHCP_END);
+	if (rc == 0)
+		*endpp = endp;
+	else if (rc != ENOENT)
+		goto fail1;
+
+	return (rc);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+
+/*
+ * Delete the given tag from anywhere in the buffer. Copes with
+ * encapsulated tags, and updates or deletes the encapsulating opt as
+ * necessary.
+ */
+	__checkReturn	efx_rc_t
+efx_dhcp_delete_tag(
+	__inout_bcount(buffer_length)	uint8_t *bufferp,
+	__in				size_t buffer_length,
+	__in				uint16_t opt)
+{
+	efx_rc_t rc;
+	efx_dhcp_tag_hdr_t *hdrp;
+	size_t len;
+	uint8_t *startp;
+	uint8_t *endp;
+
+	len = buffer_length;
+	startp = bufferp;
+
+	if (!DHCP_OPT_HAS_VALUE(DHCP_ENCAPSULATED(opt))) {
+		rc = EINVAL;
+		goto fail1;
+	}
+
+	rc = efx_dhcp_walk_tags(&startp, &len, opt);
+	if (rc != 0)
+		goto fail1;
+
+	hdrp = (efx_dhcp_tag_hdr_t *)startp;
+
+	if (DHCP_IS_ENCAP_OPT(opt)) {
+		uint8_t tag_length = DHCP_FULL_TAG_LENGTH(hdrp);
+		uint8_t *encapp = bufferp;
+		efx_dhcp_tag_hdr_t *encap_hdrp;
+
+		len = buffer_length;
+		rc = efx_dhcp_walk_tags(&encapp, &len,
+		    DHCP_ENCAPSULATOR(opt));
+		if (rc != 0)
+			goto fail2;
+
+		encap_hdrp = (efx_dhcp_tag_hdr_t *)encapp;
+		if (encap_hdrp->length > tag_length) {
+			encap_hdrp->length = (uint8_t)(
+			    (size_t)encap_hdrp->length - tag_length);
+		} else {
+			/* delete the encapsulating tag */
+			hdrp = encap_hdrp;
+		}
+	}
+
+	startp = (uint8_t *)hdrp;
+	endp = (uint8_t *)DHCP_NEXT_TAG(hdrp);
+
+	if (startp < bufferp) {
+		rc = EINVAL;
+		goto fail3;
+	}
+
+	if (endp > &bufferp[buffer_length]) {
+		rc = EINVAL;
+		goto fail4;
+	}
+
+	memmove(startp, endp,
+		buffer_length - (endp - bufferp));
+
+	return (0);
+
+fail4:
+	EFSYS_PROBE(fail4);
+fail3:
+	EFSYS_PROBE(fail3);
+fail2:
+	EFSYS_PROBE(fail2);
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+/*
+ * Write the tag header into write_pointp and optionally copies the payload
+ * into the space following.
+ */
+static	void
+efx_dhcp_write_tag(
+	__in		uint8_t *write_pointp,
+	__in		uint16_t opt,
+	__in_bcount_opt(value_length)
+			uint8_t *valuep,
+	__in		size_t value_length)
+{
+	efx_dhcp_tag_hdr_t *hdrp = (efx_dhcp_tag_hdr_t *)write_pointp;
+	hdrp->tag = DHCP_ENCAPSULATED(opt);
+	hdrp->length = (uint8_t)value_length;
+	if ((value_length > 0) && (valuep != NULL))
+		memcpy(&hdrp[1], valuep, value_length);
+}
+
+/*
+ * Add the given tag to the end of the buffer. Copes with creating an
+ * encapsulated tag, and updates or creates the encapsulating opt as
+ * necessary.
+ */
+	__checkReturn	efx_rc_t
+efx_dhcp_add_tag(
+	__inout_bcount(buffer_length)	uint8_t *bufferp,
+	__in				size_t buffer_length,
+	__in				uint16_t opt,
+	__in_bcount_opt(value_length)	uint8_t *valuep,
+	__in				size_t value_length)
+{
+	efx_rc_t rc;
+	efx_dhcp_tag_hdr_t *encap_hdrp = NULL;
+	uint8_t *insert_pointp = NULL;
+	uint8_t *endp;
+	size_t available_space;
+	size_t added_length;
+	size_t search_size;
+	uint8_t *searchp;
+
+	if (!DHCP_OPT_HAS_VALUE(DHCP_ENCAPSULATED(opt))) {
+		rc = EINVAL;
+		goto fail1;
+	}
+
+	if (value_length > DHCP_MAX_VALUE) {
+		rc = EINVAL;
+		goto fail2;
+	}
+
+	if ((value_length > 0) && (valuep == NULL)) {
+		rc = EINVAL;
+		goto fail3;
+	}
+
+	endp = bufferp;
+	available_space = buffer_length;
+	rc = efx_dhcp_walk_tags(&endp, &available_space, EFX_DHCP_END);
+	if (rc != 0)
+		goto fail4;
+
+	searchp = bufferp;
+	search_size = buffer_length;
+	if (DHCP_IS_ENCAP_OPT(opt)) {
+		rc = efx_dhcp_walk_tags(&searchp, &search_size,
+		    DHCP_ENCAPSULATOR(opt));
+		if (rc == 0) {
+			encap_hdrp = (efx_dhcp_tag_hdr_t *)searchp;
+
+			/* Check encapsulated tag is not present */
+			search_size = encap_hdrp->length;
+			rc = efx_dhcp_walk_tags(&searchp, &search_size,
+			    opt);
+			if (rc != ENOENT) {
+				rc = EINVAL;
+				goto fail5;
+			}
+
+			/* Check encapsulator will not overflow */
+			if (((size_t)encap_hdrp->length +
+			    DHCP_CALC_TAG_LENGTH(value_length)) >
+			    DHCP_MAX_VALUE) {
+				rc = E2BIG;
+				goto fail6;
+			}
+
+			/* Insert at start of existing encapsulator */
+			insert_pointp = (uint8_t *)&encap_hdrp[1];
+			opt = DHCP_ENCAPSULATED(opt);
+		} else if (rc == ENOENT) {
+			encap_hdrp = NULL;
+		} else {
+			goto fail7;
+		}
+	} else {
+		/* Check unencapsulated tag is not present */
+		rc = efx_dhcp_walk_tags(&searchp, &search_size,
+		    opt);
+		if (rc != ENOENT) {
+			rc = EINVAL;
+			goto fail8;
+		}
+	}
+
+	if (insert_pointp == NULL) {
+		/* Insert at end of existing tags */
+		insert_pointp = endp;
+	}
+
+	/* Includes the new encapsulator tag hdr if required */
+	added_length = DHCP_CALC_TAG_LENGTH(value_length) +
+	    (DHCP_IS_ENCAP_OPT(opt) ? sizeof (efx_dhcp_tag_hdr_t) : 0);
+
+	if (available_space <= added_length) {
+		rc = ENOMEM;
+		goto fail9;
+	}
+
+	memmove(insert_pointp + added_length, insert_pointp,
+	    available_space - added_length);
+
+	if (DHCP_IS_ENCAP_OPT(opt)) {
+		/* Create new encapsulator header */
+		added_length -= sizeof (efx_dhcp_tag_hdr_t);
+		efx_dhcp_write_tag(insert_pointp,
+		    DHCP_ENCAPSULATOR(opt), NULL, added_length);
+		insert_pointp += sizeof (efx_dhcp_tag_hdr_t);
+	} else if (encap_hdrp)
+		/* Modify existing encapsulator header */
+		encap_hdrp->length +=
+		    ((uint8_t)DHCP_CALC_TAG_LENGTH(value_length));
+
+	efx_dhcp_write_tag(insert_pointp, opt, valuep, value_length);
+
+	return (0);
+
+fail9:
+	EFSYS_PROBE(fail9);
+fail8:
+	EFSYS_PROBE(fail8);
+fail7:
+	EFSYS_PROBE(fail7);
+fail6:
+	EFSYS_PROBE(fail6);
+fail5:
+	EFSYS_PROBE(fail5);
+fail4:
+	EFSYS_PROBE(fail4);
+fail3:
+	EFSYS_PROBE(fail3);
+fail2:
+	EFSYS_PROBE(fail2);
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+/*
+ * Update an existing tag to the new value. Copes with encapsulated
+ * tags, and updates the encapsulating opt as necessary.
+ */
+	__checkReturn	efx_rc_t
+efx_dhcp_update_tag(
+	__inout_bcount(buffer_length)	uint8_t *bufferp,
+	__in				size_t buffer_length,
+	__in				uint16_t opt,
+	__in				uint8_t *value_locationp,
+	__in_bcount_opt(value_length)	uint8_t *valuep,
+	__in				size_t value_length)
+{
+	efx_rc_t rc;
+	uint8_t *write_pointp = value_locationp - sizeof (efx_dhcp_tag_hdr_t);
+	efx_dhcp_tag_hdr_t *hdrp = (efx_dhcp_tag_hdr_t *)write_pointp;
+	efx_dhcp_tag_hdr_t *encap_hdrp = NULL;
+	size_t old_length;
+
+	if (!DHCP_OPT_HAS_VALUE(DHCP_ENCAPSULATED(opt))) {
+		rc = EINVAL;
+		goto fail1;
+	}
+
+	if (value_length > DHCP_MAX_VALUE) {
+		rc = EINVAL;
+		goto fail2;
+	}
+
+	if ((value_length > 0) && (valuep == NULL)) {
+		rc = EINVAL;
+		goto fail3;
+	}
+
+	old_length = hdrp->length;
+
+	if (old_length < value_length) {
+		uint8_t *endp = bufferp;
+		size_t available_space = buffer_length;
+
+		rc = efx_dhcp_walk_tags(&endp, &available_space,
+		    EFX_DHCP_END);
+		if (rc != 0)
+			goto fail4;
+
+		if (available_space < (value_length - old_length)) {
+			rc = EINVAL;
+			goto fail5;
+		}
+	}
+
+	if (DHCP_IS_ENCAP_OPT(opt)) {
+		uint8_t *encapp = bufferp;
+		size_t following_encap = buffer_length;
+		size_t new_length;
+
+		rc = efx_dhcp_walk_tags(&encapp, &following_encap,
+		    DHCP_ENCAPSULATOR(opt));
+		if (rc != 0)
+			goto fail6;
+
+		encap_hdrp = (efx_dhcp_tag_hdr_t *)encapp;
+
+		new_length = ((size_t)encap_hdrp->length +
+		    value_length - old_length);
+		/* Check encapsulator will not overflow */
+		if (new_length > DHCP_MAX_VALUE) {
+			rc = E2BIG;
+			goto fail7;
+		}
+
+		encap_hdrp->length = (uint8_t)new_length;
+	}
+
+	/*
+	 * Move the following data up/down to accomodate the new payload
+	 * length.
+	 */
+	if (old_length != value_length) {
+		uint8_t *destp = (uint8_t *)DHCP_NEXT_TAG(hdrp) +
+		    value_length - old_length;
+		size_t count = &bufferp[buffer_length] -
+		    (uint8_t *)DHCP_NEXT_TAG(hdrp);
+
+		memmove(destp, DHCP_NEXT_TAG(hdrp), count);
+	}
+
+	EFSYS_ASSERT(hdrp->tag == DHCP_ENCAPSULATED(opt));
+	efx_dhcp_write_tag(write_pointp, opt, valuep, value_length);
+
+	return (0);
+
+fail7:
+	EFSYS_PROBE(fail7);
+fail6:
+	EFSYS_PROBE(fail6);
+fail5:
+	EFSYS_PROBE(fail5);
+fail4:
+	EFSYS_PROBE(fail4);
+fail3:
+	EFSYS_PROBE(fail3);
+fail2:
+	EFSYS_PROBE(fail2);
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+
+/*
  * Copy bootcfg sector data to a target buffer which may differ in size.
  * Optionally corrects format errors in source buffer.
  */
@@ -206,17 +737,19 @@ efx_bootcfg_copy_sector(
 	__in			size_t data_size,
 	__in			boolean_t handle_format_errors)
 {
+	_NOTE(ARGUNUSED(enp))
+
 	size_t used_bytes;
 	efx_rc_t rc;
 
-	/* Minimum buffer is checksum byte and DHCP_END terminator */
+	/* Minimum buffer is checksum byte and EFX_DHCP_END terminator */
 	if (data_size < 2) {
 		rc = ENOSPC;
 		goto fail1;
 	}
 
 	/* Verify that the area is correctly formatted and checksummed */
-	rc = efx_bootcfg_verify(enp, sector, sector_length,
+	rc = efx_dhcp_verify(sector, sector_length,
 				    &used_bytes);
 
 	if (!handle_format_errors) {
@@ -224,8 +757,8 @@ efx_bootcfg_copy_sector(
 			goto fail2;
 
 		if ((used_bytes < 2) ||
-		    (sector[used_bytes - 1] != DHCP_END)) {
-			/* Block too short, or DHCP_END missing */
+		    (sector[used_bytes - 1] != EFX_DHCP_END)) {
+			/* Block too short, or EFX_DHCP_END missing */
 			rc = ENOENT;
 			goto fail3;
 		}
@@ -234,24 +767,24 @@ efx_bootcfg_copy_sector(
 	/* Synthesize empty format on verification failure */
 	if (rc != 0 || used_bytes == 0) {
 		sector[0] = 0;
-		sector[1] = DHCP_END;
+		sector[1] = EFX_DHCP_END;
 		used_bytes = 2;
 	}
-	EFSYS_ASSERT(used_bytes >= 2);	/* checksum and DHCP_END */
+	EFSYS_ASSERT(used_bytes >= 2);	/* checksum and EFX_DHCP_END */
 	EFSYS_ASSERT(used_bytes <= sector_length);
 	EFSYS_ASSERT(sector_length >= 2);
 
 	/*
-	 * Legacy bootcfg sectors don't terminate with a DHCP_END character.
-	 * Modify the returned payload so it does.
+	 * Legacy bootcfg sectors don't terminate with an EFX_DHCP_END
+	 * character. Modify the returned payload so it does.
 	 * Reinitialise the sector if there isn't room for the character.
 	 */
-	if (sector[used_bytes - 1] != DHCP_END) {
+	if (sector[used_bytes - 1] != EFX_DHCP_END) {
 		if (used_bytes >= sector_length) {
 			sector[0] = 0;
 			used_bytes = 1;
 		}
-		sector[used_bytes] = DHCP_END;
+		sector[used_bytes] = EFX_DHCP_END;
 		++used_bytes;
 	}
 
@@ -274,10 +807,11 @@ efx_bootcfg_copy_sector(
 		(void) memset(data + used_bytes, 0, data_size - used_bytes);
 
 	/*
-	 * The checksum includes trailing data after any DHCP_END character,
-	 * which we've just modified (by truncation or appending DHCP_END).
+	 * The checksum includes trailing data after any EFX_DHCP_END
+	 * character, which we've just modified (by truncation or appending
+	 * EFX_DHCP_END).
 	 */
-	data[0] -= efx_bootcfg_csum(enp, data, data_size);
+	data[0] -= efx_dhcp_csum(data, data_size);
 
 	return (0);
 
@@ -307,7 +841,7 @@ efx_bootcfg_read(
 	efx_rc_t rc;
 	uint32_t sector_number;
 
-	/* Minimum buffer is checksum byte and DHCP_END terminator */
+	/* Minimum buffer is checksum byte and EFX_DHCP_END terminator */
 	if (size < 2) {
 		rc = ENOSPC;
 		goto fail1;
@@ -343,10 +877,10 @@ efx_bootcfg_read(
 	}
 
 	/*
-	 * We need to read the entire BOOTCFG sector to ensure we read all the
-	 * tags, because legacy bootcfg sectors are not guaranteed to end with
-	 * a DHCP_END character. If the user hasn't supplied a sufficiently
-	 * large buffer then use our own buffer.
+	 * We need to read the entire BOOTCFG sector to ensure we read all
+	 * tags, because legacy bootcfg sectors are not guaranteed to end
+	 * with an EFX_DHCP_END character. If the user hasn't supplied a
+	 * sufficiently large buffer then use our own buffer.
 	 */
 	if (sector_length > size) {
 		EFSYS_KMEM_ALLOC(enp->en_esip, sector_length, payload);
@@ -370,28 +904,29 @@ efx_bootcfg_read(
 		goto fail9;
 
 	/* Verify that the area is correctly formatted and checksummed */
-	rc = efx_bootcfg_verify(enp, payload, sector_length,
+	rc = efx_dhcp_verify(payload, sector_length,
 	    &used_bytes);
 	if (rc != 0 || used_bytes == 0) {
 		payload[0] = 0;
-		payload[1] = DHCP_END;
+		payload[1] = EFX_DHCP_END;
 		used_bytes = 2;
 	}
 
-	EFSYS_ASSERT(used_bytes >= 2);	/* checksum and DHCP_END */
+	EFSYS_ASSERT(used_bytes >= 2);	/* checksum and EFX_DHCP_END */
 	EFSYS_ASSERT(used_bytes <= sector_length);
 
 	/*
-	 * Legacy bootcfg sectors don't terminate with a DHCP_END character.
-	 * Modify the returned payload so it does. BOOTCFG_MAX_SIZE is by
-	 * definition large enough for any valid (per-port) bootcfg sector,
-	 * so reinitialise the sector if there isn't room for the character.
+	 * Legacy bootcfg sectors don't terminate with an EFX_DHCP_END
+	 * character. Modify the returned payload so it does.
+	 * BOOTCFG_MAX_SIZE is by definition large enough for any valid
+	 * (per-port) bootcfg sector, so reinitialise the sector if there
+	 * isn't room for the character.
 	 */
-	if (payload[used_bytes - 1] != DHCP_END) {
+	if (payload[used_bytes - 1] != EFX_DHCP_END) {
 		if (used_bytes >= sector_length)
 			used_bytes = 1;
 
-		payload[used_bytes] = DHCP_END;
+		payload[used_bytes] = EFX_DHCP_END;
 		++used_bytes;
 	}
 
@@ -417,10 +952,10 @@ efx_bootcfg_read(
 		(void) memset(data + used_bytes, 0, size - used_bytes);
 
 	/*
-	 * The checksum includes trailing data after any DHCP_END character,
-	 * which we've just modified (by truncation or appending DHCP_END).
+	 * The checksum includes trailing data after any EFX_DHCP_END character,
+	 * which we've just modified (by truncation or appending EFX_DHCP_END).
 	 */
-	data[0] -= efx_bootcfg_csum(enp, data, size);
+	data[0] -= efx_dhcp_csum(data, size);
 
 	return (0);
 
@@ -490,12 +1025,16 @@ efx_bootcfg_write(
 		goto fail3;
 	}
 
-	if ((rc = efx_bootcfg_verify(enp, data, size, &used_bytes)) != 0)
+	if ((rc = efx_dhcp_verify(data, size, &used_bytes)) != 0)
 		goto fail4;
 
-	/* The caller *must* terminate their block with a DHCP_END character */
-	if ((used_bytes < 2) || ((uint8_t)data[used_bytes - 1] != DHCP_END)) {
-		/* Block too short or DHCP_END missing */
+	/*
+	 * The caller *must* terminate their block with a EFX_DHCP_END
+	 * character
+	 */
+	if ((used_bytes < 2) || ((uint8_t)data[used_bytes - 1] !=
+	    EFX_DHCP_END)) {
+		/* Block too short or EFX_DHCP_END missing */
 		rc = ENOENT;
 		goto fail5;
 	}
@@ -528,13 +1067,13 @@ efx_bootcfg_write(
 		goto fail9;
 
 	/*
-	 * Insert the BOOTCFG sector into the partition, Zero out all data after
-	 * the DHCP_END tag, and adjust the checksum.
+	 * Insert the BOOTCFG sector into the partition, Zero out all data
+	 * after the EFX_DHCP_END tag, and adjust the checksum.
 	 */
 	(void) memset(partn_data + sector_offset, 0x0, sector_length);
 	(void) memcpy(partn_data + sector_offset, data, used_bytes);
 
-	checksum = efx_bootcfg_csum(enp, data, used_bytes);
+	checksum = efx_dhcp_csum(data, used_bytes);
 	partn_data[sector_offset] -= checksum;
 
 	if ((rc = efx_nvram_erase(enp, EFX_NVRAM_BOOTROM_CFG)) != 0)
diff --git a/drivers/net/sfc/base/efx_filter.c b/drivers/net/sfc/base/efx_filter.c
index 412298ac..a7523b38 100644
--- a/drivers/net/sfc/base/efx_filter.c
+++ b/drivers/net/sfc/base/efx_filter.c
@@ -490,27 +490,42 @@ fail1:
 }
 
 /*
- * Specify inner and outer Ethernet address and VXLAN ID in filter
+ * Specify inner and outer Ethernet address and VNI or VSID in tunnel filter
  * specification.
  */
-	__checkReturn	efx_rc_t
-efx_filter_spec_set_vxlan_full(
-	__inout		efx_filter_spec_t *spec,
-	__in		const uint8_t *vxlan_id,
+static	__checkReturn	efx_rc_t
+efx_filter_spec_set_tunnel(
+	__inout	efx_filter_spec_t *spec,
+	__in		efx_tunnel_protocol_t encap_type,
+	__in		const uint8_t *vni_or_vsid,
 	__in		const uint8_t *inner_addr,
 	__in		const uint8_t *outer_addr)
 {
+	efx_rc_t rc;
+
 	EFSYS_ASSERT3P(spec, !=, NULL);
-	EFSYS_ASSERT3P(vxlan_id, !=, NULL);
+	EFSYS_ASSERT3P(vni_or_vsid, !=, NULL);
 	EFSYS_ASSERT3P(inner_addr, !=, NULL);
 	EFSYS_ASSERT3P(outer_addr, !=, NULL);
 
-	if ((inner_addr == NULL) && (outer_addr == NULL))
-		return (EINVAL);
+	switch (encap_type) {
+	case EFX_TUNNEL_PROTOCOL_VXLAN:
+	case EFX_TUNNEL_PROTOCOL_GENEVE:
+	case EFX_TUNNEL_PROTOCOL_NVGRE:
+		break;
+	default:
+		rc = EINVAL;
+		goto fail1;
+	}
+
+	if ((inner_addr == NULL) && (outer_addr == NULL)) {
+		rc = EINVAL;
+		goto fail2;
+	}
 
-	if (vxlan_id != NULL) {
+	if (vni_or_vsid != NULL) {
 		spec->efs_match_flags |= EFX_FILTER_MATCH_VNI_OR_VSID;
-		memcpy(spec->efs_vni_or_vsid, vxlan_id, EFX_VNI_OR_VSID_LEN);
+		memcpy(spec->efs_vni_or_vsid, vni_or_vsid, EFX_VNI_OR_VSID_LEN);
 	}
 	if (outer_addr != NULL) {
 		spec->efs_match_flags |= EFX_FILTER_MATCH_LOC_MAC;
@@ -520,10 +535,63 @@ efx_filter_spec_set_vxlan_full(
 		spec->efs_match_flags |= EFX_FILTER_MATCH_IFRM_LOC_MAC;
 		memcpy(spec->efs_ifrm_loc_mac, inner_addr, EFX_MAC_ADDR_LEN);
 	}
+
 	spec->efs_match_flags |= EFX_FILTER_MATCH_ENCAP_TYPE;
-	spec->efs_encap_type = EFX_TUNNEL_PROTOCOL_VXLAN;
+	spec->efs_encap_type = encap_type;
 
 	return (0);
+
+fail2:
+	EFSYS_PROBE(fail2);
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+/*
+ * Specify inner and outer Ethernet address and VNI in VXLAN filter
+ * specification.
+ */
+__checkReturn		efx_rc_t
+efx_filter_spec_set_vxlan(
+	__inout		efx_filter_spec_t *spec,
+	__in		const uint8_t *vni,
+	__in		const uint8_t *inner_addr,
+	__in		const uint8_t *outer_addr)
+{
+	return efx_filter_spec_set_tunnel(spec, EFX_TUNNEL_PROTOCOL_VXLAN,
+	    vni, inner_addr, outer_addr);
+}
+
+/*
+ * Specify inner and outer Ethernet address and VNI in Geneve filter
+ * specification.
+ */
+__checkReturn		efx_rc_t
+efx_filter_spec_set_geneve(
+	__inout		efx_filter_spec_t *spec,
+	__in		const uint8_t *vni,
+	__in		const uint8_t *inner_addr,
+	__in		const uint8_t *outer_addr)
+{
+	return efx_filter_spec_set_tunnel(spec, EFX_TUNNEL_PROTOCOL_GENEVE,
+	    vni, inner_addr, outer_addr);
+}
+
+/*
+ * Specify inner and outer Ethernet address and vsid in NVGRE filter
+ * specification.
+ */
+__checkReturn		efx_rc_t
+efx_filter_spec_set_nvgre(
+	__inout		efx_filter_spec_t *spec,
+	__in		const uint8_t *vsid,
+	__in		const uint8_t *inner_addr,
+	__in		const uint8_t *outer_addr)
+{
+	return efx_filter_spec_set_tunnel(spec, EFX_TUNNEL_PROTOCOL_NVGRE,
+	    vsid, inner_addr, outer_addr);
 }
 
 #if EFSYS_OPT_RX_SCALE
diff --git a/drivers/net/sfc/base/efx_impl.h b/drivers/net/sfc/base/efx_impl.h
index 548834f9..bad23f81 100644
--- a/drivers/net/sfc/base/efx_impl.h
+++ b/drivers/net/sfc/base/efx_impl.h
@@ -59,6 +59,7 @@ extern "C" {
 #define	EFX_RESET_PHY		0x00000001
 #define	EFX_RESET_RXQ_ERR	0x00000002
 #define	EFX_RESET_TXQ_ERR	0x00000004
+#define	EFX_RESET_HW_UNAVAIL	0x00000008
 
 typedef enum efx_mac_type_e {
 	EFX_MAC_INVALID = 0,
@@ -223,6 +224,7 @@ typedef struct efx_phy_ops_s {
 	efx_rc_t	(*epo_reconfigure)(efx_nic_t *);
 	efx_rc_t	(*epo_verify)(efx_nic_t *);
 	efx_rc_t	(*epo_oui_get)(efx_nic_t *, uint32_t *);
+	efx_rc_t	(*epo_link_state_get)(efx_nic_t *, efx_phy_link_state_t *);
 #if EFSYS_OPT_PHY_STATS
 	efx_rc_t	(*epo_stats_update)(efx_nic_t *, efsys_mem_t *,
 					    uint32_t *);
@@ -317,6 +319,8 @@ typedef struct efx_mon_ops_s {
 #if EFSYS_OPT_MON_STATS
 	efx_rc_t	(*emo_stats_update)(efx_nic_t *, efsys_mem_t *,
 					    efx_mon_stat_value_t *);
+	efx_rc_t	(*emo_limits_update)(efx_nic_t *,
+					     efx_mon_stat_limits_t *);
 #endif	/* EFSYS_OPT_MON_STATS */
 } efx_mon_ops_t;
 
@@ -354,6 +358,8 @@ typedef struct efx_nic_ops_s {
 	efx_rc_t	(*eno_get_vi_pool)(efx_nic_t *, uint32_t *);
 	efx_rc_t	(*eno_get_bar_region)(efx_nic_t *, efx_nic_region_t,
 					uint32_t *, size_t *);
+	boolean_t	(*eno_hw_unavailable)(efx_nic_t *);
+	void		(*eno_set_hw_unavailable)(efx_nic_t *);
 #if EFSYS_OPT_DIAG
 	efx_rc_t	(*eno_register_test)(efx_nic_t *);
 #endif	/* EFSYS_OPT_DIAG */
@@ -507,7 +513,7 @@ typedef struct efx_nvram_ops_s {
 					    uint32_t *, uint16_t *);
 	efx_rc_t	(*envo_partn_set_version)(efx_nic_t *, uint32_t,
 					    uint16_t *);
-	efx_rc_t	(*envo_buffer_validate)(efx_nic_t *, uint32_t,
+	efx_rc_t	(*envo_buffer_validate)(uint32_t,
 					    caddr_t, size_t);
 } efx_nvram_ops_t;
 #endif /* EFSYS_OPT_NVRAM */
@@ -583,7 +589,7 @@ efx_mcdi_nvram_write(
 	__in			efx_nic_t *enp,
 	__in			uint32_t partn,
 	__in			uint32_t offset,
-	__out_bcount(size)	caddr_t data,
+	__in_bcount(size)	caddr_t data,
 	__in			size_t size);
 
 	__checkReturn		efx_rc_t
diff --git a/drivers/net/sfc/base/efx_lic.c b/drivers/net/sfc/base/efx_lic.c
index 49c00347..4081aef1 100644
--- a/drivers/net/sfc/base/efx_lic.c
+++ b/drivers/net/sfc/base/efx_lic.c
@@ -301,12 +301,11 @@ efx_mcdi_fc_license_update_license(
 	__in		efx_nic_t *enp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MC_CMD_FC_IN_LICENSE_LEN];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_FC_IN_LICENSE_LEN, 0);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_FC;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_FC_IN_LICENSE_LEN;
@@ -347,13 +346,12 @@ efx_mcdi_fc_license_get_key_stats(
 	__out		efx_key_stats_t *eksp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_FC_IN_LICENSE_LEN,
-			    MC_CMD_FC_OUT_LICENSE_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_FC_IN_LICENSE_LEN,
+		MC_CMD_FC_OUT_LICENSE_LEN);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_FC;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_FC_IN_LICENSE_LEN;
@@ -663,8 +661,8 @@ efx_mcdi_licensed_app_state(
 	__out		boolean_t *licensedp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_LICENSED_APP_STATE_IN_LEN,
-			    MC_CMD_GET_LICENSED_APP_STATE_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_LICENSED_APP_STATE_IN_LEN,
+		MC_CMD_GET_LICENSED_APP_STATE_OUT_LEN);
 	uint32_t app_state;
 	efx_rc_t rc;
 
@@ -676,7 +674,6 @@ efx_mcdi_licensed_app_state(
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_LICENSED_APP_STATE;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_LICENSED_APP_STATE_IN_LEN;
@@ -722,12 +719,11 @@ efx_mcdi_licensing_update_licenses(
 	__in		efx_nic_t *enp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MC_CMD_LICENSING_IN_LEN];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_LICENSING_IN_LEN, 0);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_LICENSING;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_LICENSING_IN_LEN;
@@ -765,13 +761,12 @@ efx_mcdi_licensing_get_key_stats(
 	__out		efx_key_stats_t *eksp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_LICENSING_IN_LEN,
-			    MC_CMD_LICENSING_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_LICENSING_IN_LEN,
+		MC_CMD_LICENSING_OUT_LEN);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_LICENSING;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_LICENSING_IN_LEN;
@@ -829,13 +824,12 @@ efx_mcdi_licensing_v3_update_licenses(
 	__in		efx_nic_t *enp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MC_CMD_LICENSING_V3_IN_LEN];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_LICENSING_V3_IN_LEN, 0);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT((enp->en_family == EFX_FAMILY_MEDFORD) ||
 	    (enp->en_family == EFX_FAMILY_MEDFORD2));
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_LICENSING_V3;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_LICENSING_V3_IN_LEN;
@@ -866,14 +860,13 @@ efx_mcdi_licensing_v3_report_license(
 	__out		efx_key_stats_t *eksp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_LICENSING_V3_IN_LEN,
-			    MC_CMD_LICENSING_V3_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_LICENSING_V3_IN_LEN,
+		MC_CMD_LICENSING_V3_OUT_LEN);
 	efx_rc_t rc;
 
 	EFSYS_ASSERT((enp->en_family == EFX_FAMILY_MEDFORD) ||
 	    (enp->en_family == EFX_FAMILY_MEDFORD2));
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_LICENSING_V3;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_LICENSING_V3_IN_LEN;
@@ -930,15 +923,14 @@ efx_mcdi_licensing_v3_app_state(
 	__out		boolean_t *licensedp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_LICENSED_V3_APP_STATE_IN_LEN,
-			    MC_CMD_GET_LICENSED_V3_APP_STATE_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_LICENSED_V3_APP_STATE_IN_LEN,
+		MC_CMD_GET_LICENSED_V3_APP_STATE_OUT_LEN);
 	uint32_t app_state;
 	efx_rc_t rc;
 
 	EFSYS_ASSERT((enp->en_family == EFX_FAMILY_MEDFORD) ||
 	    (enp->en_family == EFX_FAMILY_MEDFORD2));
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_LICENSED_V3_APP_STATE;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_LICENSED_V3_APP_STATE_IN_LEN;
@@ -990,28 +982,15 @@ efx_mcdi_licensing_v3_get_id(
 			uint8_t *bufferp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_LICENSING_GET_ID_V3_IN_LEN,
-			    MC_CMD_LICENSING_GET_ID_V3_OUT_LENMIN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_LICENSING_GET_ID_V3_IN_LEN,
+		MC_CMD_LICENSING_GET_ID_V3_OUT_LENMAX);
 	efx_rc_t rc;
 
 	req.emr_cmd = MC_CMD_LICENSING_GET_ID_V3;
-
-	if (bufferp == NULL) {
-		/* Request id type and length only */
-		req.emr_in_buf = bufferp;
-		req.emr_in_length = MC_CMD_LICENSING_GET_ID_V3_IN_LEN;
-		req.emr_out_buf = bufferp;
-		req.emr_out_length = MC_CMD_LICENSING_GET_ID_V3_OUT_LENMIN;
-		(void) memset(payload, 0, sizeof (payload));
-	} else {
-		/* Request full buffer */
-		req.emr_in_buf = bufferp;
-		req.emr_in_length = MC_CMD_LICENSING_GET_ID_V3_IN_LEN;
-		req.emr_out_buf = bufferp;
-		req.emr_out_length =
-		    MIN(buffer_size, MC_CMD_LICENSING_GET_ID_V3_OUT_LENMAX);
-		(void) memset(bufferp, 0, req.emr_out_length);
-	}
+	req.emr_in_buf = payload;
+	req.emr_in_length = MC_CMD_LICENSING_GET_ID_V3_IN_LEN;
+	req.emr_out_buf = payload;
+	req.emr_out_length = MC_CMD_LICENSING_GET_ID_V3_OUT_LENMAX;
 
 	efx_mcdi_execute_quiet(enp, &req);
 
@@ -1029,19 +1008,10 @@ efx_mcdi_licensing_v3_get_id(
 	*lengthp =
 	    MCDI_OUT_DWORD(req, LICENSING_GET_ID_V3_OUT_LICENSE_ID_LENGTH);
 
-	if (bufferp == NULL) {
-		/*
-		 * Modify length requirements to indicate to caller the extra
-		 * buffering needed to read the complete output.
-		 */
-		*lengthp += MC_CMD_LICENSING_GET_ID_V3_OUT_LENMIN;
-	} else {
-		/* Shift ID down to start of buffer */
-		memmove(bufferp,
-		    bufferp + MC_CMD_LICENSING_GET_ID_V3_OUT_LICENSE_ID_OFST,
-		    *lengthp);
-		memset(bufferp + (*lengthp), 0,
-		    MC_CMD_LICENSING_GET_ID_V3_OUT_LICENSE_ID_OFST);
+	if (bufferp != NULL) {
+		memcpy(bufferp,
+		    payload + MC_CMD_LICENSING_GET_ID_V3_OUT_LICENSE_ID_OFST,
+		    MIN(buffer_size, *lengthp));
 	}
 
 	return (0);
@@ -1158,10 +1128,12 @@ efx_lic_v3_read_key(
 	__in			size_t key_max_size,
 	__out			uint32_t *lengthp)
 {
+	uint32_t tag;
+
 	_NOTE(ARGUNUSED(enp))
 
 	return ef10_nvram_buffer_get_item(bufferp, buffer_size,
-		    offset, length, keyp, key_max_size, lengthp);
+		    offset, length, &tag, keyp, key_max_size, lengthp);
 }
 
 	__checkReturn		efx_rc_t
@@ -1179,7 +1151,7 @@ efx_lic_v3_write_key(
 	EFSYS_ASSERT(length <= EFX_LICENSE_V3_KEY_LENGTH_MAX);
 
 	return ef10_nvram_buffer_insert_item(bufferp, buffer_size,
-		    offset, keyp, length, lengthp);
+		    offset, TLV_TAG_LICENSE, keyp, length, lengthp);
 }
 
 	__checkReturn		efx_rc_t
@@ -1221,8 +1193,10 @@ efx_lic_v3_create_partition(
 {
 	efx_rc_t rc;
 
+	_NOTE(ARGUNUSED(enp))
+
 	/* Construct empty partition */
-	if ((rc = ef10_nvram_buffer_create(enp,
+	if ((rc = ef10_nvram_buffer_create(
 	    NVRAM_PARTITION_TYPE_LICENSE,
 	    bufferp, buffer_size)) != 0) {
 		rc = EFAULT;
@@ -1246,13 +1220,16 @@ efx_lic_v3_finish_partition(
 {
 	efx_rc_t rc;
 
+	_NOTE(ARGUNUSED(enp))
+
 	if ((rc = ef10_nvram_buffer_finish(bufferp,
 			buffer_size)) != 0) {
 		goto fail1;
 	}
 
 	/* Validate completed partition */
-	if ((rc = ef10_nvram_buffer_validate(enp, NVRAM_PARTITION_TYPE_LICENSE,
+	if ((rc = ef10_nvram_buffer_validate(
+					NVRAM_PARTITION_TYPE_LICENSE,
 					bufferp, buffer_size)) != 0) {
 		goto fail2;
 	}
diff --git a/drivers/net/sfc/base/efx_mcdi.c b/drivers/net/sfc/base/efx_mcdi.c
index d4ebcf26..c896aa0b 100644
--- a/drivers/net/sfc/base/efx_mcdi.c
+++ b/drivers/net/sfc/base/efx_mcdi.c
@@ -496,6 +496,12 @@ efx_mcdi_request_poll(
 	EFSYS_ASSERT(!emip->emi_ev_cpl);
 	emrp = emip->emi_pending_req;
 
+	/* Check if hardware is unavailable */
+	if (efx_nic_hw_unavailable(enp)) {
+		EFSYS_UNLOCK(enp->en_eslp, state);
+		return (B_FALSE);
+	}
+
 	/* Check for reboot atomically w.r.t efx_mcdi_request_start */
 	if (emip->emi_poll_cnt++ == 0) {
 		if ((rc = efx_mcdi_poll_reboot(enp)) != 0) {
@@ -900,10 +906,10 @@ efx_mcdi_version(
 	__out_opt		efx_mcdi_boot_t *statusp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MAX(MC_CMD_GET_VERSION_IN_LEN,
-				MC_CMD_GET_VERSION_OUT_LEN),
-			    MAX(MC_CMD_GET_BOOT_STATUS_IN_LEN,
-				MC_CMD_GET_BOOT_STATUS_OUT_LEN))];
+	EFX_MCDI_DECLARE_BUF(payload,
+		MAX(MC_CMD_GET_VERSION_IN_LEN, MC_CMD_GET_BOOT_STATUS_IN_LEN),
+		MAX(MC_CMD_GET_VERSION_OUT_LEN,
+			MC_CMD_GET_BOOT_STATUS_OUT_LEN));
 	efx_word_t *ver_words;
 	uint16_t version[4];
 	uint32_t build;
@@ -912,7 +918,6 @@ efx_mcdi_version(
 
 	EFSYS_ASSERT3U(enp->en_features, &, EFX_FEATURE_MCDI);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_VERSION;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_VERSION_IN_LEN;
@@ -1018,12 +1023,11 @@ efx_mcdi_get_capabilities(
 	__out_opt	uint32_t *tso2ncp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_CAPABILITIES_IN_LEN,
-			    MC_CMD_GET_CAPABILITIES_V2_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_CAPABILITIES_IN_LEN,
+		MC_CMD_GET_CAPABILITIES_V2_OUT_LEN);
 	boolean_t v2_capable;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_CAPABILITIES;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_CAPABILITIES_IN_LEN;
@@ -1086,7 +1090,8 @@ efx_mcdi_do_reboot(
 	__in		efx_nic_t *enp,
 	__in		boolean_t after_assertion)
 {
-	uint8_t payload[MAX(MC_CMD_REBOOT_IN_LEN, MC_CMD_REBOOT_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_REBOOT_IN_LEN,
+		MC_CMD_REBOOT_OUT_LEN);
 	efx_mcdi_req_t req;
 	efx_rc_t rc;
 
@@ -1099,7 +1104,6 @@ efx_mcdi_do_reboot(
 	 */
 	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_REBOOT;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_REBOOT_IN_LEN;
@@ -1150,8 +1154,8 @@ efx_mcdi_read_assertion(
 	__in		efx_nic_t *enp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_ASSERTS_IN_LEN,
-			    MC_CMD_GET_ASSERTS_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_ASSERTS_IN_LEN,
+		MC_CMD_GET_ASSERTS_OUT_LEN);
 	const char *reason;
 	unsigned int flags;
 	unsigned int index;
@@ -1252,11 +1256,10 @@ efx_mcdi_drv_attach(
 	__in		boolean_t attach)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_DRV_ATTACH_IN_LEN,
-			    MC_CMD_DRV_ATTACH_EXT_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_DRV_ATTACH_IN_LEN,
+		MC_CMD_DRV_ATTACH_EXT_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_DRV_ATTACH;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_DRV_ATTACH_IN_LEN;
@@ -1311,11 +1314,10 @@ efx_mcdi_get_board_cfg(
 {
 	efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_BOARD_CFG_IN_LEN,
-			    MC_CMD_GET_BOARD_CFG_OUT_LENMIN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_BOARD_CFG_IN_LEN,
+		MC_CMD_GET_BOARD_CFG_OUT_LENMIN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_BOARD_CFG;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_BOARD_CFG_IN_LEN;
@@ -1391,11 +1393,10 @@ efx_mcdi_get_resource_limits(
 	__out_opt	uint32_t *ntxqp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_RESOURCE_LIMITS_IN_LEN,
-			    MC_CMD_GET_RESOURCE_LIMITS_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_RESOURCE_LIMITS_IN_LEN,
+		MC_CMD_GET_RESOURCE_LIMITS_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_RESOURCE_LIMITS;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_RESOURCE_LIMITS_IN_LEN;
@@ -1438,8 +1439,8 @@ efx_mcdi_get_phy_cfg(
 	efx_port_t *epp = &(enp->en_port);
 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_PHY_CFG_IN_LEN,
-			    MC_CMD_GET_PHY_CFG_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_PHY_CFG_IN_LEN,
+		MC_CMD_GET_PHY_CFG_OUT_LEN);
 #if EFSYS_OPT_NAMES
 	const char *namep;
 	size_t namelen;
@@ -1447,7 +1448,6 @@ efx_mcdi_get_phy_cfg(
 	uint32_t phy_media_type;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_PHY_CFG;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_PHY_CFG_IN_LEN;
@@ -1686,11 +1686,10 @@ efx_mcdi_bist_start(
 	__in			efx_bist_type_t type)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_START_BIST_IN_LEN,
-			    MC_CMD_START_BIST_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_START_BIST_IN_LEN,
+		MC_CMD_START_BIST_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_START_BIST;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_START_BIST_IN_LEN;
@@ -1749,11 +1748,10 @@ efx_mcdi_log_ctrl(
 	__in		efx_nic_t *enp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_LOG_CTRL_IN_LEN,
-			    MC_CMD_LOG_CTRL_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_LOG_CTRL_IN_LEN,
+		MC_CMD_LOG_CTRL_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_LOG_CTRL;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_LOG_CTRL_IN_LEN;
@@ -1798,8 +1796,8 @@ efx_mcdi_mac_stats(
 	__in		uint16_t period_ms)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_MAC_STATS_IN_LEN,
-			    MC_CMD_MAC_STATS_V2_OUT_DMA_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_MAC_STATS_IN_LEN,
+		MC_CMD_MAC_STATS_V2_OUT_DMA_LEN);
 	int clear = (action == EFX_STATS_CLEAR);
 	int upload = (action == EFX_STATS_UPLOAD);
 	int enable = (action == EFX_STATS_ENABLE_NOEVENTS);
@@ -1807,7 +1805,6 @@ efx_mcdi_mac_stats(
 	int disable = (action == EFX_STATS_DISABLE);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_MAC_STATS;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_MAC_STATS_IN_LEN;
@@ -1979,11 +1976,10 @@ efx_mcdi_get_function_info(
 	__out_opt		uint32_t *vfp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_FUNCTION_INFO_IN_LEN,
-			    MC_CMD_GET_FUNCTION_INFO_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_FUNCTION_INFO_IN_LEN,
+		MC_CMD_GET_FUNCTION_INFO_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_FUNCTION_INFO;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_FUNCTION_INFO_IN_LEN;
@@ -2024,11 +2020,10 @@ efx_mcdi_privilege_mask(
 	__out			uint32_t *maskp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_PRIVILEGE_MASK_IN_LEN,
-			    MC_CMD_PRIVILEGE_MASK_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_PRIVILEGE_MASK_IN_LEN,
+		MC_CMD_PRIVILEGE_MASK_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_PRIVILEGE_MASK;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_PRIVILEGE_MASK_IN_LEN;
@@ -2073,11 +2068,10 @@ efx_mcdi_set_workaround(
 	__out_opt		uint32_t *flagsp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_WORKAROUND_IN_LEN,
-			    MC_CMD_WORKAROUND_EXT_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_WORKAROUND_IN_LEN,
+		MC_CMD_WORKAROUND_EXT_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_WORKAROUND;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_WORKAROUND_IN_LEN;
@@ -2117,10 +2111,9 @@ efx_mcdi_get_workarounds(
 	__out_opt		uint32_t *enabledp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MC_CMD_GET_WORKAROUNDS_OUT_LEN];
+	EFX_MCDI_DECLARE_BUF(payload, 0, MC_CMD_GET_WORKAROUNDS_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_WORKAROUNDS;
 	req.emr_in_buf = NULL;
 	req.emr_in_length = 0;
@@ -2157,6 +2150,14 @@ fail1:
  */
 #define	EFX_PHY_MEDIA_INFO_PAGE_SIZE		0x80
 
+/*
+ * Transceiver identifiers from SFF-8024 Table 4-1.
+ */
+#define	EFX_SFF_TRANSCEIVER_ID_SFP		0x03 /* SFP/SFP+/SFP28 */
+#define	EFX_SFF_TRANSCEIVER_ID_QSFP		0x0c /* QSFP */
+#define	EFX_SFF_TRANSCEIVER_ID_QSFP_PLUS	0x0d /* QSFP+ or later */
+#define	EFX_SFF_TRANSCEIVER_ID_QSFP28		0x11 /* QSFP28 or later */
+
 static	__checkReturn		efx_rc_t
 efx_mcdi_get_phy_media_info(
 	__in			efx_nic_t *enp,
@@ -2166,14 +2167,13 @@ efx_mcdi_get_phy_media_info(
 	__out_bcount(len)	uint8_t *data)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN,
-			    MC_CMD_GET_PHY_MEDIA_INFO_OUT_LEN(
-				EFX_PHY_MEDIA_INFO_PAGE_SIZE))];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN,
+		MC_CMD_GET_PHY_MEDIA_INFO_OUT_LEN(
+			EFX_PHY_MEDIA_INFO_PAGE_SIZE));
 	efx_rc_t rc;
 
 	EFSYS_ASSERT((uint32_t)offset + len <= EFX_PHY_MEDIA_INFO_PAGE_SIZE);
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_PHY_MEDIA_INFO;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN;
@@ -2218,39 +2218,19 @@ fail1:
 	return (rc);
 }
 
-/*
- * 2-wire device address of the base information in accordance with SFF-8472
- * Diagnostic Monitoring Interface for Optical Transceivers section
- * 4 Memory Organization.
- */
-#define	EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_BASE	0xA0
-
-/*
- * 2-wire device address of the digital diagnostics monitoring interface
- * in accordance with SFF-8472 Diagnostic Monitoring Interface for Optical
- * Transceivers section 4 Memory Organization.
- */
-#define	EFX_PHY_MEDIA_INFO_DEV_ADDR_SFP_DDM	0xA2
-
-/*
- * Hard wired 2-wire device address for QSFP+ in accordance with SFF-8436
- * QSFP+ 10 Gbs 4X PLUGGABLE TRANSCEIVER section 7.4 Device Addressing and
- * Operation.
- */
-#define	EFX_PHY_MEDIA_INFO_DEV_ADDR_QSFP	0xA0
-
 	__checkReturn		efx_rc_t
 efx_mcdi_phy_module_get_info(
 	__in			efx_nic_t *enp,
 	__in			uint8_t dev_addr,
-	__in			uint8_t offset,
-	__in			uint8_t len,
+	__in			size_t offset,
+	__in			size_t len,
 	__out_bcount(len)	uint8_t *data)
 {
 	efx_port_t *epp = &(enp->en_port);
 	efx_rc_t rc;
 	uint32_t mcdi_lower_page;
 	uint32_t mcdi_upper_page;
+	uint8_t id;
 
 	EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
 
@@ -2264,6 +2244,26 @@ efx_mcdi_phy_module_get_info(
 	 */
 	switch (epp->ep_fixed_port_type) {
 	case EFX_PHY_MEDIA_SFP_PLUS:
+	case EFX_PHY_MEDIA_QSFP_PLUS:
+		/* Port type supports modules */
+		break;
+	default:
+		rc = ENOTSUP;
+		goto fail1;
+	}
+
+	/*
+	 * For all supported port types, MCDI page 0 offset 0 holds the
+	 * transceiver identifier. Probe to determine the data layout.
+	 * Definitions from SFF-8024 Table 4-1.
+	 */
+	rc = efx_mcdi_get_phy_media_info(enp,
+		    0, 0, sizeof(id), &id);
+	if (rc != 0)
+		goto fail2;
+
+	switch (id) {
+	case EFX_SFF_TRANSCEIVER_ID_SFP:
 		/*
 		 * In accordance with SFF-8472 Diagnostic Monitoring
 		 * Interface for Optical Transceivers section 4 Memory
@@ -2298,10 +2298,12 @@ efx_mcdi_phy_module_get_info(
 			break;
 		default:
 			rc = ENOTSUP;
-			goto fail1;
+			goto fail3;
 		}
 		break;
-	case EFX_PHY_MEDIA_QSFP_PLUS:
+	case EFX_SFF_TRANSCEIVER_ID_QSFP:
+	case EFX_SFF_TRANSCEIVER_ID_QSFP_PLUS:
+	case EFX_SFF_TRANSCEIVER_ID_QSFP28:
 		switch (dev_addr) {
 		case EFX_PHY_MEDIA_INFO_DEV_ADDR_QSFP:
 			/*
@@ -2317,22 +2319,24 @@ efx_mcdi_phy_module_get_info(
 			break;
 		default:
 			rc = ENOTSUP;
-			goto fail1;
+			goto fail3;
 		}
 		break;
 	default:
 		rc = ENOTSUP;
-		goto fail1;
+		goto fail3;
 	}
 
+	EFX_STATIC_ASSERT(EFX_PHY_MEDIA_INFO_PAGE_SIZE <= 0xFF);
+
 	if (offset < EFX_PHY_MEDIA_INFO_PAGE_SIZE) {
-		uint8_t read_len =
+		size_t read_len =
 		    MIN(len, EFX_PHY_MEDIA_INFO_PAGE_SIZE - offset);
 
 		rc = efx_mcdi_get_phy_media_info(enp,
-		    mcdi_lower_page, offset, read_len, data);
+		    mcdi_lower_page, (uint8_t)offset, (uint8_t)read_len, data);
 		if (rc != 0)
-			goto fail2;
+			goto fail4;
 
 		data += read_len;
 		len -= read_len;
@@ -2347,13 +2351,17 @@ efx_mcdi_phy_module_get_info(
 		EFSYS_ASSERT3U(offset, <, EFX_PHY_MEDIA_INFO_PAGE_SIZE);
 
 		rc = efx_mcdi_get_phy_media_info(enp,
-		    mcdi_upper_page, offset, len, data);
+		    mcdi_upper_page, (uint8_t)offset, (uint8_t)len, data);
 		if (rc != 0)
-			goto fail3;
+			goto fail5;
 	}
 
 	return (0);
 
+fail5:
+	EFSYS_PROBE(fail5);
+fail4:
+	EFSYS_PROBE(fail4);
 fail3:
 	EFSYS_PROBE(fail3);
 fail2:
diff --git a/drivers/net/sfc/base/efx_mcdi.h b/drivers/net/sfc/base/efx_mcdi.h
index 253a9e60..ddf91c11 100644
--- a/drivers/net/sfc/base/efx_mcdi.h
+++ b/drivers/net/sfc/base/efx_mcdi.h
@@ -10,6 +10,10 @@
 #include "efx.h"
 #include "efx_regs_mcdi.h"
 
+#if EFSYS_OPT_NAMES
+#include "mc_driver_pcol_strs.h"
+#endif /* EFSYS_OPT_NAMES */
+
 #ifdef	__cplusplus
 extern "C" {
 #endif
@@ -215,8 +219,8 @@ extern	__checkReturn	efx_rc_t
 efx_mcdi_phy_module_get_info(
 	__in			efx_nic_t *enp,
 	__in			uint8_t dev_addr,
-	__in			uint8_t offset,
-	__in			uint8_t len,
+	__in			size_t offset,
+	__in			size_t len,
 	__out_bcount(len)	uint8_t *data);
 
 #define	MCDI_IN(_emr, _type, _ofst)					\
@@ -380,6 +384,17 @@ efx_mcdi_phy_module_get_info(
 	(((mask) & (MC_CMD_PRIVILEGE_MASK_IN_GRP_ ## priv)) ==		\
 	(MC_CMD_PRIVILEGE_MASK_IN_GRP_ ## priv))
 
+/*
+ * The buffer size must be a multiple of dword to ensure that MCDI works
+ * properly with Siena based boards (which use on-chip buffer). Also, it
+ * should be at minimum the size of two dwords to allow space for extended
+ * error responses if the request/response buffer sizes are smaller.
+ */
+#define EFX_MCDI_DECLARE_BUF(_name, _in_len, _out_len)			\
+	uint8_t _name[P2ROUNDUP(MAX(MAX(_in_len, _out_len),		\
+				    (2 * sizeof (efx_dword_t))),	\
+				sizeof (efx_dword_t))] = {0}
+
 typedef enum efx_mcdi_feature_id_e {
 	EFX_MCDI_FEATURE_FW_UPDATE = 0,
 	EFX_MCDI_FEATURE_LINK_CONTROL,
diff --git a/drivers/net/sfc/base/efx_mon.c b/drivers/net/sfc/base/efx_mon.c
index 9fc268ec..f28775d0 100644
--- a/drivers/net/sfc/base/efx_mon.c
+++ b/drivers/net/sfc/base/efx_mon.c
@@ -38,7 +38,8 @@ efx_mon_name(
 #if EFSYS_OPT_MON_MCDI
 static const efx_mon_ops_t	__efx_mon_mcdi_ops = {
 #if EFSYS_OPT_MON_STATS
-	mcdi_mon_stats_update		/* emo_stats_update */
+	mcdi_mon_stats_update,		/* emo_stats_update */
+	mcdi_mon_limits_update,		/* emo_limits_update */
 #endif	/* EFSYS_OPT_MON_STATS */
 };
 #endif
@@ -99,77 +100,74 @@ fail1:
 
 #if EFSYS_OPT_NAMES
 
-/* START MKCONFIG GENERATED MonitorStatNamesBlock 8150a068198c0f96 */
+/* START MKCONFIG GENERATED MonitorStatNamesBlock 277c17eda1a6d1a4 */
 static const char * const __mon_stat_name[] = {
-	"value_2_5v",
-	"value_vccp1",
-	"value_vcc",
-	"value_5v",
-	"value_12v",
-	"value_vccp2",
-	"value_ext_temp",
-	"value_int_temp",
-	"value_ain1",
-	"value_ain2",
+	"controller_temp",
+	"phy_common_temp",
 	"controller_cooling",
-	"ext_cooling",
-	"1v",
-	"1_2v",
-	"1_8v",
-	"3_3v",
-	"1_2va",
-	"vref",
-	"vaoe",
-	"aoe_temperature",
-	"psu_aoe_temperature",
-	"psu_temperature",
-	"fan0",
-	"fan1",
-	"fan2",
-	"fan3",
-	"fan4",
-	"vaoe_in",
-	"iaoe",
-	"iaoe_in",
+	"phy0_temp",
+	"phy0_cooling",
+	"phy1_temp",
+	"phy1_cooling",
+	"in_1v0",
+	"in_1v2",
+	"in_1v8",
+	"in_2v5",
+	"in_3v3",
+	"in_12v0",
+	"in_1v2a",
+	"in_vref",
+	"out_vaoe",
+	"aoe_temp",
+	"psu_aoe_temp",
+	"psu_temp",
+	"fan_0",
+	"fan_1",
+	"fan_2",
+	"fan_3",
+	"fan_4",
+	"in_vaoe",
+	"out_iaoe",
+	"in_iaoe",
 	"nic_power",
-	"0_9v",
-	"i0_9v",
-	"i1_2v",
-	"0_9v_adc",
-	"controller_temperature2",
-	"vreg_temperature",
-	"vreg_0_9v_temperature",
-	"vreg_1_2v_temperature",
-	"int_vptat",
-	"controller_internal_adc_temperature",
-	"ext_vptat",
-	"controller_external_adc_temperature",
-	"ambient_temperature",
+	"in_0v9",
+	"in_i0v9",
+	"in_i1v2",
+	"in_0v9_adc",
+	"controller_2_temp",
+	"vreg_internal_temp",
+	"vreg_0v9_temp",
+	"vreg_1v2_temp",
+	"controller_vptat",
+	"controller_internal_temp",
+	"controller_vptat_extadc",
+	"controller_internal_temp_extadc",
+	"ambient_temp",
 	"airflow",
 	"vdd08d_vss08d_csr",
 	"vdd08d_vss08d_csr_extadc",
-	"hotpoint_temperature",
-	"phy_power_switch_port0",
-	"phy_power_switch_port1",
+	"hotpoint_temp",
+	"phy_power_port0",
+	"phy_power_port1",
 	"mum_vcc",
-	"0v9_a",
-	"i0v9_a",
-	"0v9_a_temp",
-	"0v9_b",
-	"i0v9_b",
-	"0v9_b_temp",
+	"in_0v9_a",
+	"in_i0v9_a",
+	"vreg_0v9_a_temp",
+	"in_0v9_b",
+	"in_i0v9_b",
+	"vreg_0v9_b_temp",
 	"ccom_avreg_1v2_supply",
-	"ccom_avreg_1v2_supply_ext_adc",
+	"ccom_avreg_1v2_supply_extadc",
 	"ccom_avreg_1v8_supply",
-	"ccom_avreg_1v8_supply_ext_adc",
+	"ccom_avreg_1v8_supply_extadc",
 	"controller_master_vptat",
 	"controller_master_internal_temp",
-	"controller_master_vptat_ext_adc",
-	"controller_master_internal_temp_ext_adc",
+	"controller_master_vptat_extadc",
+	"controller_master_internal_temp_extadc",
 	"controller_slave_vptat",
 	"controller_slave_internal_temp",
-	"controller_slave_vptat_ext_adc",
-	"controller_slave_internal_temp_ext_adc",
+	"controller_slave_vptat_extadc",
+	"controller_slave_internal_temp_extadc",
 	"sodimm_vout",
 	"sodimm_0_temp",
 	"sodimm_1_temp",
@@ -178,17 +176,17 @@ static const char * const __mon_stat_name[] = {
 	"controller_tdiode_temp",
 	"board_front_temp",
 	"board_back_temp",
-	"i1v8",
-	"i2v5",
-	"i3v3",
-	"i12v0",
-	"1v3",
-	"i1v3",
+	"in_i1v8",
+	"in_i2v5",
+	"in_i3v3",
+	"in_i12v0",
+	"in_1v3",
+	"in_i1v3",
 };
 
 /* END MKCONFIG GENERATED MonitorStatNamesBlock */
 
-extern					const char *
+					const char *
 efx_mon_stat_name(
 	__in				efx_nic_t *enp,
 	__in				efx_mon_stat_t id)
@@ -200,8 +198,609 @@ efx_mon_stat_name(
 	return (__mon_stat_name[id]);
 }
 
+typedef struct _stat_description_t {
+	efx_mon_stat_t	stat;
+	const char	*desc;
+} stat_description_t;
+
+/* START MKCONFIG GENERATED MonitorStatDescriptionsBlock f072138f16d2e1f8 */
+static const char *__mon_stat_description[] = {
+	MC_CMD_SENSOR_CONTROLLER_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_PHY_COMMON_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_COOLING_ENUM_STR,
+	MC_CMD_SENSOR_PHY0_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_PHY0_COOLING_ENUM_STR,
+	MC_CMD_SENSOR_PHY1_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_PHY1_COOLING_ENUM_STR,
+	MC_CMD_SENSOR_IN_1V0_ENUM_STR,
+	MC_CMD_SENSOR_IN_1V2_ENUM_STR,
+	MC_CMD_SENSOR_IN_1V8_ENUM_STR,
+	MC_CMD_SENSOR_IN_2V5_ENUM_STR,
+	MC_CMD_SENSOR_IN_3V3_ENUM_STR,
+	MC_CMD_SENSOR_IN_12V0_ENUM_STR,
+	MC_CMD_SENSOR_IN_1V2A_ENUM_STR,
+	MC_CMD_SENSOR_IN_VREF_ENUM_STR,
+	MC_CMD_SENSOR_OUT_VAOE_ENUM_STR,
+	MC_CMD_SENSOR_AOE_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_PSU_AOE_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_PSU_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_FAN_0_ENUM_STR,
+	MC_CMD_SENSOR_FAN_1_ENUM_STR,
+	MC_CMD_SENSOR_FAN_2_ENUM_STR,
+	MC_CMD_SENSOR_FAN_3_ENUM_STR,
+	MC_CMD_SENSOR_FAN_4_ENUM_STR,
+	MC_CMD_SENSOR_IN_VAOE_ENUM_STR,
+	MC_CMD_SENSOR_OUT_IAOE_ENUM_STR,
+	MC_CMD_SENSOR_IN_IAOE_ENUM_STR,
+	MC_CMD_SENSOR_NIC_POWER_ENUM_STR,
+	MC_CMD_SENSOR_IN_0V9_ENUM_STR,
+	MC_CMD_SENSOR_IN_I0V9_ENUM_STR,
+	MC_CMD_SENSOR_IN_I1V2_ENUM_STR,
+	MC_CMD_SENSOR_IN_0V9_ADC_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_2_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_VREG_INTERNAL_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_VREG_0V9_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_VREG_1V2_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_VPTAT_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_INTERNAL_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_VPTAT_EXTADC_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_INTERNAL_TEMP_EXTADC_ENUM_STR,
+	MC_CMD_SENSOR_AMBIENT_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_AIRFLOW_ENUM_STR,
+	MC_CMD_SENSOR_VDD08D_VSS08D_CSR_ENUM_STR,
+	MC_CMD_SENSOR_VDD08D_VSS08D_CSR_EXTADC_ENUM_STR,
+	MC_CMD_SENSOR_HOTPOINT_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_PHY_POWER_PORT0_ENUM_STR,
+	MC_CMD_SENSOR_PHY_POWER_PORT1_ENUM_STR,
+	MC_CMD_SENSOR_MUM_VCC_ENUM_STR,
+	MC_CMD_SENSOR_IN_0V9_A_ENUM_STR,
+	MC_CMD_SENSOR_IN_I0V9_A_ENUM_STR,
+	MC_CMD_SENSOR_VREG_0V9_A_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_IN_0V9_B_ENUM_STR,
+	MC_CMD_SENSOR_IN_I0V9_B_ENUM_STR,
+	MC_CMD_SENSOR_VREG_0V9_B_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_CCOM_AVREG_1V2_SUPPLY_ENUM_STR,
+	MC_CMD_SENSOR_CCOM_AVREG_1V2_SUPPLY_EXTADC_ENUM_STR,
+	MC_CMD_SENSOR_CCOM_AVREG_1V8_SUPPLY_ENUM_STR,
+	MC_CMD_SENSOR_CCOM_AVREG_1V8_SUPPLY_EXTADC_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_MASTER_VPTAT_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_MASTER_INTERNAL_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_MASTER_VPTAT_EXTADC_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_MASTER_INTERNAL_TEMP_EXTADC_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_SLAVE_VPTAT_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_SLAVE_INTERNAL_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_SLAVE_VPTAT_EXTADC_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_SLAVE_INTERNAL_TEMP_EXTADC_ENUM_STR,
+	MC_CMD_SENSOR_SODIMM_VOUT_ENUM_STR,
+	MC_CMD_SENSOR_SODIMM_0_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_SODIMM_1_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_PHY0_VCC_ENUM_STR,
+	MC_CMD_SENSOR_PHY1_VCC_ENUM_STR,
+	MC_CMD_SENSOR_CONTROLLER_TDIODE_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_BOARD_FRONT_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_BOARD_BACK_TEMP_ENUM_STR,
+	MC_CMD_SENSOR_IN_I1V8_ENUM_STR,
+	MC_CMD_SENSOR_IN_I2V5_ENUM_STR,
+	MC_CMD_SENSOR_IN_I3V3_ENUM_STR,
+	MC_CMD_SENSOR_IN_I12V0_ENUM_STR,
+	MC_CMD_SENSOR_IN_1V3_ENUM_STR,
+	MC_CMD_SENSOR_IN_I1V3_ENUM_STR,
+};
+
+/* END MKCONFIG GENERATED MonitorStatDescriptionsBlock */
+
+					const char *
+efx_mon_stat_description(
+	__in				efx_nic_t *enp,
+	__in				efx_mon_stat_t id)
+{
+	_NOTE(ARGUNUSED(enp))
+	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+
+	EFSYS_ASSERT3U(id, <, EFX_MON_NSTATS);
+	return (__mon_stat_description[id]);
+}
+
 #endif	/* EFSYS_OPT_NAMES */
 
+/* START MKCONFIG GENERATED MonitorMcdiMappingBlock 173eee0a5599996a */
+	__checkReturn			boolean_t
+efx_mon_mcdi_to_efx_stat(
+	__in				int mcdi_index,
+	__out				efx_mon_stat_t *statp)
+{
+
+	if ((mcdi_index % (MC_CMD_SENSOR_PAGE0_NEXT + 1)) ==
+	    MC_CMD_SENSOR_PAGE0_NEXT) {
+		*statp = EFX_MON_NSTATS;
+		return (B_FALSE);
+	}
+
+	switch (mcdi_index) {
+	case MC_CMD_SENSOR_IN_I0V9:
+		*statp = EFX_MON_STAT_IN_I0V9;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_SLAVE_VPTAT_EXTADC:
+		*statp = EFX_MON_STAT_CONTROLLER_SLAVE_VPTAT_EXTADC;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_SLAVE_VPTAT:
+		*statp = EFX_MON_STAT_CONTROLLER_SLAVE_VPTAT;
+		break;
+	case MC_CMD_SENSOR_PSU_TEMP:
+		*statp = EFX_MON_STAT_PSU_TEMP;
+		break;
+	case MC_CMD_SENSOR_FAN_2:
+		*statp = EFX_MON_STAT_FAN_2;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_INTERNAL_TEMP_EXTADC:
+		*statp = EFX_MON_STAT_CONTROLLER_INTERNAL_TEMP_EXTADC;
+		break;
+	case MC_CMD_SENSOR_BOARD_BACK_TEMP:
+		*statp = EFX_MON_STAT_BOARD_BACK_TEMP;
+		break;
+	case MC_CMD_SENSOR_IN_1V3:
+		*statp = EFX_MON_STAT_IN_1V3;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_TDIODE_TEMP:
+		*statp = EFX_MON_STAT_CONTROLLER_TDIODE_TEMP;
+		break;
+	case MC_CMD_SENSOR_IN_2V5:
+		*statp = EFX_MON_STAT_IN_2V5;
+		break;
+	case MC_CMD_SENSOR_PHY_COMMON_TEMP:
+		*statp = EFX_MON_STAT_PHY_COMMON_TEMP;
+		break;
+	case MC_CMD_SENSOR_PHY1_TEMP:
+		*statp = EFX_MON_STAT_PHY1_TEMP;
+		break;
+	case MC_CMD_SENSOR_VREG_INTERNAL_TEMP:
+		*statp = EFX_MON_STAT_VREG_INTERNAL_TEMP;
+		break;
+	case MC_CMD_SENSOR_IN_1V0:
+		*statp = EFX_MON_STAT_IN_1V0;
+		break;
+	case MC_CMD_SENSOR_FAN_1:
+		*statp = EFX_MON_STAT_FAN_1;
+		break;
+	case MC_CMD_SENSOR_IN_1V2:
+		*statp = EFX_MON_STAT_IN_1V2;
+		break;
+	case MC_CMD_SENSOR_FAN_3:
+		*statp = EFX_MON_STAT_FAN_3;
+		break;
+	case MC_CMD_SENSOR_IN_1V2A:
+		*statp = EFX_MON_STAT_IN_1V2A;
+		break;
+	case MC_CMD_SENSOR_SODIMM_0_TEMP:
+		*statp = EFX_MON_STAT_SODIMM_0_TEMP;
+		break;
+	case MC_CMD_SENSOR_IN_1V8:
+		*statp = EFX_MON_STAT_IN_1V8;
+		break;
+	case MC_CMD_SENSOR_IN_VREF:
+		*statp = EFX_MON_STAT_IN_VREF;
+		break;
+	case MC_CMD_SENSOR_SODIMM_VOUT:
+		*statp = EFX_MON_STAT_SODIMM_VOUT;
+		break;
+	case MC_CMD_SENSOR_CCOM_AVREG_1V2_SUPPLY:
+		*statp = EFX_MON_STAT_CCOM_AVREG_1V2_SUPPLY;
+		break;
+	case MC_CMD_SENSOR_IN_I1V2:
+		*statp = EFX_MON_STAT_IN_I1V2;
+		break;
+	case MC_CMD_SENSOR_IN_I1V3:
+		*statp = EFX_MON_STAT_IN_I1V3;
+		break;
+	case MC_CMD_SENSOR_AIRFLOW:
+		*statp = EFX_MON_STAT_AIRFLOW;
+		break;
+	case MC_CMD_SENSOR_HOTPOINT_TEMP:
+		*statp = EFX_MON_STAT_HOTPOINT_TEMP;
+		break;
+	case MC_CMD_SENSOR_VDD08D_VSS08D_CSR:
+		*statp = EFX_MON_STAT_VDD08D_VSS08D_CSR;
+		break;
+	case MC_CMD_SENSOR_AOE_TEMP:
+		*statp = EFX_MON_STAT_AOE_TEMP;
+		break;
+	case MC_CMD_SENSOR_IN_I1V8:
+		*statp = EFX_MON_STAT_IN_I1V8;
+		break;
+	case MC_CMD_SENSOR_IN_I2V5:
+		*statp = EFX_MON_STAT_IN_I2V5;
+		break;
+	case MC_CMD_SENSOR_PHY1_COOLING:
+		*statp = EFX_MON_STAT_PHY1_COOLING;
+		break;
+	case MC_CMD_SENSOR_CCOM_AVREG_1V8_SUPPLY_EXTADC:
+		*statp = EFX_MON_STAT_CCOM_AVREG_1V8_SUPPLY_EXTADC;
+		break;
+	case MC_CMD_SENSOR_IN_0V9_ADC:
+		*statp = EFX_MON_STAT_IN_0V9_ADC;
+		break;
+	case MC_CMD_SENSOR_VREG_0V9_A_TEMP:
+		*statp = EFX_MON_STAT_VREG_0V9_A_TEMP;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_MASTER_VPTAT:
+		*statp = EFX_MON_STAT_CONTROLLER_MASTER_VPTAT;
+		break;
+	case MC_CMD_SENSOR_PHY0_VCC:
+		*statp = EFX_MON_STAT_PHY0_VCC;
+		break;
+	case MC_CMD_SENSOR_PHY0_COOLING:
+		*statp = EFX_MON_STAT_PHY0_COOLING;
+		break;
+	case MC_CMD_SENSOR_PSU_AOE_TEMP:
+		*statp = EFX_MON_STAT_PSU_AOE_TEMP;
+		break;
+	case MC_CMD_SENSOR_VREG_0V9_TEMP:
+		*statp = EFX_MON_STAT_VREG_0V9_TEMP;
+		break;
+	case MC_CMD_SENSOR_IN_I0V9_A:
+		*statp = EFX_MON_STAT_IN_I0V9_A;
+		break;
+	case MC_CMD_SENSOR_IN_I3V3:
+		*statp = EFX_MON_STAT_IN_I3V3;
+		break;
+	case MC_CMD_SENSOR_BOARD_FRONT_TEMP:
+		*statp = EFX_MON_STAT_BOARD_FRONT_TEMP;
+		break;
+	case MC_CMD_SENSOR_OUT_VAOE:
+		*statp = EFX_MON_STAT_OUT_VAOE;
+		break;
+	case MC_CMD_SENSOR_VDD08D_VSS08D_CSR_EXTADC:
+		*statp = EFX_MON_STAT_VDD08D_VSS08D_CSR_EXTADC;
+		break;
+	case MC_CMD_SENSOR_IN_I12V0:
+		*statp = EFX_MON_STAT_IN_I12V0;
+		break;
+	case MC_CMD_SENSOR_PHY_POWER_PORT1:
+		*statp = EFX_MON_STAT_PHY_POWER_PORT1;
+		break;
+	case MC_CMD_SENSOR_PHY_POWER_PORT0:
+		*statp = EFX_MON_STAT_PHY_POWER_PORT0;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_SLAVE_INTERNAL_TEMP_EXTADC:
+		*statp = EFX_MON_STAT_CONTROLLER_SLAVE_INTERNAL_TEMP_EXTADC;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_MASTER_INTERNAL_TEMP:
+		*statp = EFX_MON_STAT_CONTROLLER_MASTER_INTERNAL_TEMP;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_TEMP:
+		*statp = EFX_MON_STAT_CONTROLLER_TEMP;
+		break;
+	case MC_CMD_SENSOR_IN_IAOE:
+		*statp = EFX_MON_STAT_IN_IAOE;
+		break;
+	case MC_CMD_SENSOR_IN_VAOE:
+		*statp = EFX_MON_STAT_IN_VAOE;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_MASTER_VPTAT_EXTADC:
+		*statp = EFX_MON_STAT_CONTROLLER_MASTER_VPTAT_EXTADC;
+		break;
+	case MC_CMD_SENSOR_CCOM_AVREG_1V8_SUPPLY:
+		*statp = EFX_MON_STAT_CCOM_AVREG_1V8_SUPPLY;
+		break;
+	case MC_CMD_SENSOR_PHY1_VCC:
+		*statp = EFX_MON_STAT_PHY1_VCC;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_COOLING:
+		*statp = EFX_MON_STAT_CONTROLLER_COOLING;
+		break;
+	case MC_CMD_SENSOR_AMBIENT_TEMP:
+		*statp = EFX_MON_STAT_AMBIENT_TEMP;
+		break;
+	case MC_CMD_SENSOR_IN_3V3:
+		*statp = EFX_MON_STAT_IN_3V3;
+		break;
+	case MC_CMD_SENSOR_PHY0_TEMP:
+		*statp = EFX_MON_STAT_PHY0_TEMP;
+		break;
+	case MC_CMD_SENSOR_SODIMM_1_TEMP:
+		*statp = EFX_MON_STAT_SODIMM_1_TEMP;
+		break;
+	case MC_CMD_SENSOR_MUM_VCC:
+		*statp = EFX_MON_STAT_MUM_VCC;
+		break;
+	case MC_CMD_SENSOR_VREG_0V9_B_TEMP:
+		*statp = EFX_MON_STAT_VREG_0V9_B_TEMP;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_SLAVE_INTERNAL_TEMP:
+		*statp = EFX_MON_STAT_CONTROLLER_SLAVE_INTERNAL_TEMP;
+		break;
+	case MC_CMD_SENSOR_FAN_4:
+		*statp = EFX_MON_STAT_FAN_4;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_2_TEMP:
+		*statp = EFX_MON_STAT_CONTROLLER_2_TEMP;
+		break;
+	case MC_CMD_SENSOR_CCOM_AVREG_1V2_SUPPLY_EXTADC:
+		*statp = EFX_MON_STAT_CCOM_AVREG_1V2_SUPPLY_EXTADC;
+		break;
+	case MC_CMD_SENSOR_IN_0V9_A:
+		*statp = EFX_MON_STAT_IN_0V9_A;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_VPTAT_EXTADC:
+		*statp = EFX_MON_STAT_CONTROLLER_VPTAT_EXTADC;
+		break;
+	case MC_CMD_SENSOR_IN_0V9:
+		*statp = EFX_MON_STAT_IN_0V9;
+		break;
+	case MC_CMD_SENSOR_IN_I0V9_B:
+		*statp = EFX_MON_STAT_IN_I0V9_B;
+		break;
+	case MC_CMD_SENSOR_NIC_POWER:
+		*statp = EFX_MON_STAT_NIC_POWER;
+		break;
+	case MC_CMD_SENSOR_IN_12V0:
+		*statp = EFX_MON_STAT_IN_12V0;
+		break;
+	case MC_CMD_SENSOR_OUT_IAOE:
+		*statp = EFX_MON_STAT_OUT_IAOE;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_VPTAT:
+		*statp = EFX_MON_STAT_CONTROLLER_VPTAT;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_MASTER_INTERNAL_TEMP_EXTADC:
+		*statp = EFX_MON_STAT_CONTROLLER_MASTER_INTERNAL_TEMP_EXTADC;
+		break;
+	case MC_CMD_SENSOR_CONTROLLER_INTERNAL_TEMP:
+		*statp = EFX_MON_STAT_CONTROLLER_INTERNAL_TEMP;
+		break;
+	case MC_CMD_SENSOR_FAN_0:
+		*statp = EFX_MON_STAT_FAN_0;
+		break;
+	case MC_CMD_SENSOR_VREG_1V2_TEMP:
+		*statp = EFX_MON_STAT_VREG_1V2_TEMP;
+		break;
+	case MC_CMD_SENSOR_IN_0V9_B:
+		*statp = EFX_MON_STAT_IN_0V9_B;
+		break;
+	default:
+		*statp = EFX_MON_NSTATS;
+		break;
+	};
+
+	if (*statp == EFX_MON_NSTATS)
+		goto fail1;
+
+	return (B_TRUE);
+
+fail1:
+	EFSYS_PROBE1(fail1, boolean_t, B_TRUE);
+	return (B_FALSE);
+};
+
+/* END MKCONFIG GENERATED MonitorMcdiMappingBlock */
+
+/* START MKCONFIG GENERATED MonitorStatisticUnitsBlock 2d447c656cc2d01d */
+	__checkReturn			boolean_t
+efx_mon_get_stat_unit(
+	__in				efx_mon_stat_t stat,
+	__out				efx_mon_stat_unit_t *unitp)
+{
+	switch (stat) {
+	case EFX_MON_STAT_IN_1V0:
+	case EFX_MON_STAT_IN_1V2:
+	case EFX_MON_STAT_IN_1V8:
+	case EFX_MON_STAT_IN_2V5:
+	case EFX_MON_STAT_IN_3V3:
+	case EFX_MON_STAT_IN_12V0:
+	case EFX_MON_STAT_IN_1V2A:
+	case EFX_MON_STAT_IN_VREF:
+	case EFX_MON_STAT_OUT_VAOE:
+	case EFX_MON_STAT_IN_VAOE:
+	case EFX_MON_STAT_IN_0V9:
+	case EFX_MON_STAT_IN_0V9_ADC:
+	case EFX_MON_STAT_CONTROLLER_VPTAT_EXTADC:
+	case EFX_MON_STAT_VDD08D_VSS08D_CSR:
+	case EFX_MON_STAT_VDD08D_VSS08D_CSR_EXTADC:
+	case EFX_MON_STAT_MUM_VCC:
+	case EFX_MON_STAT_IN_0V9_A:
+	case EFX_MON_STAT_IN_0V9_B:
+	case EFX_MON_STAT_CCOM_AVREG_1V2_SUPPLY:
+	case EFX_MON_STAT_CCOM_AVREG_1V2_SUPPLY_EXTADC:
+	case EFX_MON_STAT_CCOM_AVREG_1V8_SUPPLY:
+	case EFX_MON_STAT_CCOM_AVREG_1V8_SUPPLY_EXTADC:
+	case EFX_MON_STAT_CONTROLLER_MASTER_VPTAT:
+	case EFX_MON_STAT_CONTROLLER_MASTER_VPTAT_EXTADC:
+	case EFX_MON_STAT_CONTROLLER_SLAVE_VPTAT:
+	case EFX_MON_STAT_CONTROLLER_SLAVE_VPTAT_EXTADC:
+	case EFX_MON_STAT_SODIMM_VOUT:
+	case EFX_MON_STAT_PHY0_VCC:
+	case EFX_MON_STAT_PHY1_VCC:
+	case EFX_MON_STAT_IN_1V3:
+		*unitp = EFX_MON_STAT_UNIT_VOLTAGE_MV;
+		break;
+	case EFX_MON_STAT_CONTROLLER_TEMP:
+	case EFX_MON_STAT_PHY_COMMON_TEMP:
+	case EFX_MON_STAT_PHY0_TEMP:
+	case EFX_MON_STAT_PHY1_TEMP:
+	case EFX_MON_STAT_AOE_TEMP:
+	case EFX_MON_STAT_PSU_AOE_TEMP:
+	case EFX_MON_STAT_PSU_TEMP:
+	case EFX_MON_STAT_CONTROLLER_2_TEMP:
+	case EFX_MON_STAT_VREG_INTERNAL_TEMP:
+	case EFX_MON_STAT_VREG_0V9_TEMP:
+	case EFX_MON_STAT_VREG_1V2_TEMP:
+	case EFX_MON_STAT_CONTROLLER_VPTAT:
+	case EFX_MON_STAT_CONTROLLER_INTERNAL_TEMP:
+	case EFX_MON_STAT_CONTROLLER_INTERNAL_TEMP_EXTADC:
+	case EFX_MON_STAT_AMBIENT_TEMP:
+	case EFX_MON_STAT_HOTPOINT_TEMP:
+	case EFX_MON_STAT_VREG_0V9_A_TEMP:
+	case EFX_MON_STAT_VREG_0V9_B_TEMP:
+	case EFX_MON_STAT_CONTROLLER_MASTER_INTERNAL_TEMP:
+	case EFX_MON_STAT_CONTROLLER_MASTER_INTERNAL_TEMP_EXTADC:
+	case EFX_MON_STAT_CONTROLLER_SLAVE_INTERNAL_TEMP:
+	case EFX_MON_STAT_CONTROLLER_SLAVE_INTERNAL_TEMP_EXTADC:
+	case EFX_MON_STAT_SODIMM_0_TEMP:
+	case EFX_MON_STAT_SODIMM_1_TEMP:
+	case EFX_MON_STAT_CONTROLLER_TDIODE_TEMP:
+	case EFX_MON_STAT_BOARD_FRONT_TEMP:
+	case EFX_MON_STAT_BOARD_BACK_TEMP:
+		*unitp = EFX_MON_STAT_UNIT_TEMP_C;
+		break;
+	case EFX_MON_STAT_CONTROLLER_COOLING:
+	case EFX_MON_STAT_PHY0_COOLING:
+	case EFX_MON_STAT_PHY1_COOLING:
+	case EFX_MON_STAT_AIRFLOW:
+	case EFX_MON_STAT_PHY_POWER_PORT0:
+	case EFX_MON_STAT_PHY_POWER_PORT1:
+		*unitp = EFX_MON_STAT_UNIT_BOOL;
+		break;
+	case EFX_MON_STAT_NIC_POWER:
+		*unitp = EFX_MON_STAT_UNIT_POWER_W;
+		break;
+	case EFX_MON_STAT_OUT_IAOE:
+	case EFX_MON_STAT_IN_IAOE:
+	case EFX_MON_STAT_IN_I0V9:
+	case EFX_MON_STAT_IN_I1V2:
+	case EFX_MON_STAT_IN_I0V9_A:
+	case EFX_MON_STAT_IN_I0V9_B:
+	case EFX_MON_STAT_IN_I1V8:
+	case EFX_MON_STAT_IN_I2V5:
+	case EFX_MON_STAT_IN_I3V3:
+	case EFX_MON_STAT_IN_I12V0:
+	case EFX_MON_STAT_IN_I1V3:
+		*unitp = EFX_MON_STAT_UNIT_CURRENT_MA;
+		break;
+	case EFX_MON_STAT_FAN_0:
+	case EFX_MON_STAT_FAN_1:
+	case EFX_MON_STAT_FAN_2:
+	case EFX_MON_STAT_FAN_3:
+	case EFX_MON_STAT_FAN_4:
+		*unitp = EFX_MON_STAT_UNIT_RPM;
+		break;
+	default:
+		*unitp = EFX_MON_STAT_UNIT_UNKNOWN;
+		break;
+	};
+
+	if (*unitp == EFX_MON_STAT_UNIT_UNKNOWN)
+		goto fail1;
+
+	return (B_TRUE);
+
+fail1:
+	EFSYS_PROBE1(fail1, boolean_t, B_TRUE);
+	return (B_FALSE);
+};
+
+/* END MKCONFIG GENERATED MonitorStatisticUnitsBlock */
+
+/* START MKCONFIG GENERATED MonitorStatisticPortsBlock 1719b751d842534f */
+	__checkReturn			boolean_t
+efx_mon_get_stat_portmap(
+	__in				efx_mon_stat_t stat,
+	__out				efx_mon_stat_portmask_t *maskp)
+{
+
+	switch (stat) {
+	case EFX_MON_STAT_PHY1_TEMP:
+	case EFX_MON_STAT_PHY1_COOLING:
+	case EFX_MON_STAT_PHY_POWER_PORT1:
+		*maskp = EFX_MON_STAT_PORTMAP_PORT1;
+		break;
+	case EFX_MON_STAT_CONTROLLER_TEMP:
+	case EFX_MON_STAT_PHY_COMMON_TEMP:
+	case EFX_MON_STAT_CONTROLLER_COOLING:
+	case EFX_MON_STAT_IN_1V0:
+	case EFX_MON_STAT_IN_1V2:
+	case EFX_MON_STAT_IN_1V8:
+	case EFX_MON_STAT_IN_2V5:
+	case EFX_MON_STAT_IN_3V3:
+	case EFX_MON_STAT_IN_12V0:
+	case EFX_MON_STAT_IN_1V2A:
+	case EFX_MON_STAT_IN_VREF:
+	case EFX_MON_STAT_OUT_VAOE:
+	case EFX_MON_STAT_AOE_TEMP:
+	case EFX_MON_STAT_PSU_AOE_TEMP:
+	case EFX_MON_STAT_PSU_TEMP:
+	case EFX_MON_STAT_FAN_0:
+	case EFX_MON_STAT_FAN_1:
+	case EFX_MON_STAT_FAN_2:
+	case EFX_MON_STAT_FAN_3:
+	case EFX_MON_STAT_FAN_4:
+	case EFX_MON_STAT_IN_VAOE:
+	case EFX_MON_STAT_OUT_IAOE:
+	case EFX_MON_STAT_IN_IAOE:
+	case EFX_MON_STAT_NIC_POWER:
+	case EFX_MON_STAT_IN_0V9:
+	case EFX_MON_STAT_IN_I0V9:
+	case EFX_MON_STAT_IN_I1V2:
+	case EFX_MON_STAT_IN_0V9_ADC:
+	case EFX_MON_STAT_CONTROLLER_2_TEMP:
+	case EFX_MON_STAT_VREG_INTERNAL_TEMP:
+	case EFX_MON_STAT_VREG_0V9_TEMP:
+	case EFX_MON_STAT_VREG_1V2_TEMP:
+	case EFX_MON_STAT_CONTROLLER_VPTAT:
+	case EFX_MON_STAT_CONTROLLER_INTERNAL_TEMP:
+	case EFX_MON_STAT_CONTROLLER_VPTAT_EXTADC:
+	case EFX_MON_STAT_CONTROLLER_INTERNAL_TEMP_EXTADC:
+	case EFX_MON_STAT_AMBIENT_TEMP:
+	case EFX_MON_STAT_AIRFLOW:
+	case EFX_MON_STAT_VDD08D_VSS08D_CSR:
+	case EFX_MON_STAT_VDD08D_VSS08D_CSR_EXTADC:
+	case EFX_MON_STAT_HOTPOINT_TEMP:
+	case EFX_MON_STAT_MUM_VCC:
+	case EFX_MON_STAT_IN_0V9_A:
+	case EFX_MON_STAT_IN_I0V9_A:
+	case EFX_MON_STAT_VREG_0V9_A_TEMP:
+	case EFX_MON_STAT_IN_0V9_B:
+	case EFX_MON_STAT_IN_I0V9_B:
+	case EFX_MON_STAT_VREG_0V9_B_TEMP:
+	case EFX_MON_STAT_CCOM_AVREG_1V2_SUPPLY:
+	case EFX_MON_STAT_CCOM_AVREG_1V2_SUPPLY_EXTADC:
+	case EFX_MON_STAT_CCOM_AVREG_1V8_SUPPLY:
+	case EFX_MON_STAT_CCOM_AVREG_1V8_SUPPLY_EXTADC:
+	case EFX_MON_STAT_CONTROLLER_MASTER_VPTAT:
+	case EFX_MON_STAT_CONTROLLER_MASTER_INTERNAL_TEMP:
+	case EFX_MON_STAT_CONTROLLER_MASTER_VPTAT_EXTADC:
+	case EFX_MON_STAT_CONTROLLER_MASTER_INTERNAL_TEMP_EXTADC:
+	case EFX_MON_STAT_CONTROLLER_SLAVE_VPTAT:
+	case EFX_MON_STAT_CONTROLLER_SLAVE_INTERNAL_TEMP:
+	case EFX_MON_STAT_CONTROLLER_SLAVE_VPTAT_EXTADC:
+	case EFX_MON_STAT_CONTROLLER_SLAVE_INTERNAL_TEMP_EXTADC:
+	case EFX_MON_STAT_SODIMM_VOUT:
+	case EFX_MON_STAT_SODIMM_0_TEMP:
+	case EFX_MON_STAT_SODIMM_1_TEMP:
+	case EFX_MON_STAT_PHY0_VCC:
+	case EFX_MON_STAT_PHY1_VCC:
+	case EFX_MON_STAT_CONTROLLER_TDIODE_TEMP:
+	case EFX_MON_STAT_BOARD_FRONT_TEMP:
+	case EFX_MON_STAT_BOARD_BACK_TEMP:
+	case EFX_MON_STAT_IN_I1V8:
+	case EFX_MON_STAT_IN_I2V5:
+	case EFX_MON_STAT_IN_I3V3:
+	case EFX_MON_STAT_IN_I12V0:
+	case EFX_MON_STAT_IN_1V3:
+	case EFX_MON_STAT_IN_I1V3:
+		*maskp = EFX_MON_STAT_PORTMAP_ALL;
+		break;
+	case EFX_MON_STAT_PHY0_TEMP:
+	case EFX_MON_STAT_PHY0_COOLING:
+	case EFX_MON_STAT_PHY_POWER_PORT0:
+		*maskp = EFX_MON_STAT_PORTMAP_PORT0;
+		break;
+	default:
+		*maskp = EFX_MON_STAT_PORTMAP_UNKNOWN;
+		break;
+	};
+
+	if (*maskp == EFX_MON_STAT_PORTMAP_UNKNOWN)
+		goto fail1;
+
+	return (B_TRUE);
+
+fail1:
+	EFSYS_PROBE1(fail1, boolean_t, B_TRUE);
+	return (B_FALSE);
+};
+
+/* END MKCONFIG GENERATED MonitorStatisticPortsBlock */
+
 	__checkReturn			efx_rc_t
 efx_mon_stats_update(
 	__in				efx_nic_t *enp,
@@ -217,6 +816,20 @@ efx_mon_stats_update(
 	return (emop->emo_stats_update(enp, esmp, values));
 }
 
+	__checkReturn			efx_rc_t
+efx_mon_limits_update(
+	__in				efx_nic_t *enp,
+	__inout_ecount(EFX_MON_NSTATS)	efx_mon_stat_limits_t *values)
+{
+	efx_mon_t *emp = &(enp->en_mon);
+	const efx_mon_ops_t *emop = emp->em_emop;
+
+	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+	EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MON);
+
+	return (emop->emo_limits_update(enp, values));
+}
+
 #endif	/* EFSYS_OPT_MON_STATS */
 
 		void
diff --git a/drivers/net/sfc/base/efx_nic.c b/drivers/net/sfc/base/efx_nic.c
index 6c162e03..cea32b79 100644
--- a/drivers/net/sfc/base/efx_nic.c
+++ b/drivers/net/sfc/base/efx_nic.c
@@ -100,6 +100,8 @@ static const efx_nic_ops_t	__efx_nic_siena_ops = {
 	siena_nic_init,			/* eno_init */
 	NULL,				/* eno_get_vi_pool */
 	NULL,				/* eno_get_bar_region */
+	NULL,				/* eno_hw_unavailable */
+	NULL,				/* eno_set_hw_unavailable */
 #if EFSYS_OPT_DIAG
 	siena_nic_register_test,	/* eno_register_test */
 #endif	/* EFSYS_OPT_DIAG */
@@ -119,6 +121,8 @@ static const efx_nic_ops_t	__efx_nic_hunt_ops = {
 	ef10_nic_init,			/* eno_init */
 	ef10_nic_get_vi_pool,		/* eno_get_vi_pool */
 	ef10_nic_get_bar_region,	/* eno_get_bar_region */
+	ef10_nic_hw_unavailable,	/* eno_hw_unavailable */
+	ef10_nic_set_hw_unavailable,	/* eno_set_hw_unavailable */
 #if EFSYS_OPT_DIAG
 	ef10_nic_register_test,		/* eno_register_test */
 #endif	/* EFSYS_OPT_DIAG */
@@ -138,6 +142,8 @@ static const efx_nic_ops_t	__efx_nic_medford_ops = {
 	ef10_nic_init,			/* eno_init */
 	ef10_nic_get_vi_pool,		/* eno_get_vi_pool */
 	ef10_nic_get_bar_region,	/* eno_get_bar_region */
+	ef10_nic_hw_unavailable,	/* eno_hw_unavailable */
+	ef10_nic_set_hw_unavailable,	/* eno_set_hw_unavailable */
 #if EFSYS_OPT_DIAG
 	ef10_nic_register_test,		/* eno_register_test */
 #endif	/* EFSYS_OPT_DIAG */
@@ -157,6 +163,8 @@ static const efx_nic_ops_t	__efx_nic_medford2_ops = {
 	ef10_nic_init,			/* eno_init */
 	ef10_nic_get_vi_pool,		/* eno_get_vi_pool */
 	ef10_nic_get_bar_region,	/* eno_get_bar_region */
+	ef10_nic_hw_unavailable,	/* eno_hw_unavailable */
+	ef10_nic_set_hw_unavailable,	/* eno_set_hw_unavailable */
 #if EFSYS_OPT_DIAG
 	ef10_nic_register_test,		/* eno_register_test */
 #endif	/* EFSYS_OPT_DIAG */
@@ -549,7 +557,7 @@ efx_nic_reset(
 	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
 	EFSYS_ASSERT(enp->en_mod_flags & EFX_MOD_PROBE);
 	/*
-	 * All modules except the MCDI, PROBE, NVRAM, VPD, MON
+	 * All modules except the MCDI, PROBE, NVRAM, VPD, MON, TUNNEL
 	 * (which we do not reset here) must have been shut down or never
 	 * initialized.
 	 *
@@ -559,7 +567,10 @@ efx_nic_reset(
 	 */
 	mod_flags = enp->en_mod_flags;
 	mod_flags &= ~(EFX_MOD_MCDI | EFX_MOD_PROBE | EFX_MOD_NVRAM |
-		    EFX_MOD_VPD | EFX_MOD_MON);
+	    EFX_MOD_VPD | EFX_MOD_MON);
+#if EFSYS_OPT_TUNNEL
+	mod_flags &= ~EFX_MOD_TUNNEL;
+#endif /* EFSYS_OPT_TUNNEL */
 	EFSYS_ASSERT3U(mod_flags, ==, 0);
 	if (mod_flags != 0) {
 		rc = EINVAL;
@@ -584,6 +595,7 @@ efx_nic_cfg_get(
 	__in		efx_nic_t *enp)
 {
 	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+	EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
 
 	return (&(enp->en_nic_cfg));
 }
@@ -649,6 +661,39 @@ fail1:
 	return (rc);
 }
 
+	__checkReturn	boolean_t
+efx_nic_hw_unavailable(
+	__in		efx_nic_t *enp)
+{
+	const efx_nic_ops_t *enop = enp->en_enop;
+
+	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+	/* NOTE: can be used by MCDI before NIC probe */
+
+	if (enop->eno_hw_unavailable != NULL) {
+		if ((enop->eno_hw_unavailable)(enp) != B_FALSE)
+			goto unavail;
+	}
+
+	return (B_FALSE);
+
+unavail:
+	return (B_TRUE);
+}
+
+			void
+efx_nic_set_hw_unavailable(
+	__in		efx_nic_t *enp)
+{
+	const efx_nic_ops_t *enop = enp->en_enop;
+
+	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+
+	if (enop->eno_set_hw_unavailable != NULL)
+		enop->eno_set_hw_unavailable(enp);
+}
+
+
 #if EFSYS_OPT_DIAG
 
 	__checkReturn	efx_rc_t
@@ -786,13 +831,12 @@ efx_mcdi_get_loopback_modes(
 {
 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_LOOPBACK_MODES_IN_LEN,
-			    MC_CMD_GET_LOOPBACK_MODES_OUT_V2_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_LOOPBACK_MODES_IN_LEN,
+		MC_CMD_GET_LOOPBACK_MODES_OUT_V2_LEN);
 	efx_qword_t mask;
 	efx_qword_t modes;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_LOOPBACK_MODES;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_LOOPBACK_MODES_IN_LEN;
diff --git a/drivers/net/sfc/base/efx_nvram.c b/drivers/net/sfc/base/efx_nvram.c
index be409c3a..5296c59b 100644
--- a/drivers/net/sfc/base/efx_nvram.c
+++ b/drivers/net/sfc/base/efx_nvram.c
@@ -468,7 +468,7 @@ efx_nvram_validate(
 		goto fail1;
 
 	if (envop->envo_buffer_validate != NULL) {
-		if ((rc = envop->envo_buffer_validate(enp, partn,
+		if ((rc = envop->envo_buffer_validate(partn,
 			    partn_data, partn_size)) != 0)
 			goto fail2;
 	}
@@ -514,12 +514,11 @@ efx_mcdi_nvram_partitions(
 	__out			unsigned int *npartnp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_NVRAM_PARTITIONS_IN_LEN,
-			    MC_CMD_NVRAM_PARTITIONS_OUT_LENMAX)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_NVRAM_PARTITIONS_IN_LEN,
+		MC_CMD_NVRAM_PARTITIONS_OUT_LENMAX);
 	unsigned int npartn;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_NVRAM_PARTITIONS;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_NVRAM_PARTITIONS_IN_LEN;
@@ -577,11 +576,10 @@ efx_mcdi_nvram_metadata(
 	__in			size_t size)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_NVRAM_METADATA_IN_LEN,
-			    MC_CMD_NVRAM_METADATA_OUT_LENMAX)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_NVRAM_METADATA_IN_LEN,
+		MC_CMD_NVRAM_METADATA_OUT_LENMAX);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_NVRAM_METADATA;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_NVRAM_METADATA_IN_LEN;
@@ -667,12 +665,11 @@ efx_mcdi_nvram_info(
 	__out_opt		uint32_t *erase_sizep,
 	__out_opt		uint32_t *write_sizep)
 {
-	uint8_t payload[MAX(MC_CMD_NVRAM_INFO_IN_LEN,
-			    MC_CMD_NVRAM_INFO_V2_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_NVRAM_INFO_IN_LEN,
+		MC_CMD_NVRAM_INFO_V2_OUT_LEN);
 	efx_mcdi_req_t req;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_NVRAM_INFO;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_NVRAM_INFO_IN_LEN;
@@ -728,12 +725,11 @@ efx_mcdi_nvram_update_start(
 	__in			efx_nic_t *enp,
 	__in			uint32_t partn)
 {
-	uint8_t payload[MAX(MC_CMD_NVRAM_UPDATE_START_V2_IN_LEN,
-			    MC_CMD_NVRAM_UPDATE_START_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_NVRAM_UPDATE_START_V2_IN_LEN,
+		MC_CMD_NVRAM_UPDATE_START_OUT_LEN);
 	efx_mcdi_req_t req;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_NVRAM_UPDATE_START;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_NVRAM_UPDATE_START_V2_IN_LEN;
@@ -770,8 +766,8 @@ efx_mcdi_nvram_read(
 	__in			uint32_t mode)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_NVRAM_READ_IN_V2_LEN,
-			    MC_CMD_NVRAM_READ_OUT_LENMAX)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_NVRAM_READ_IN_V2_LEN,
+		MC_CMD_NVRAM_READ_OUT_LENMAX);
 	efx_rc_t rc;
 
 	if (size > MC_CMD_NVRAM_READ_OUT_LENMAX) {
@@ -779,7 +775,6 @@ efx_mcdi_nvram_read(
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_NVRAM_READ;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_NVRAM_READ_IN_V2_LEN;
@@ -825,11 +820,10 @@ efx_mcdi_nvram_erase(
 	__in			size_t size)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_NVRAM_ERASE_IN_LEN,
-			    MC_CMD_NVRAM_ERASE_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_NVRAM_ERASE_IN_LEN,
+		MC_CMD_NVRAM_ERASE_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_NVRAM_ERASE;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_NVRAM_ERASE_IN_LEN;
@@ -865,27 +859,31 @@ efx_mcdi_nvram_write(
 	__in			efx_nic_t *enp,
 	__in			uint32_t partn,
 	__in			uint32_t offset,
-	__out_bcount(size)	caddr_t data,
+	__in_bcount(size)	caddr_t data,
 	__in			size_t size)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MCDI_CTL_SDU_LEN_MAX_V1,
-			    MCDI_CTL_SDU_LEN_MAX_V2)];
+	uint8_t *payload;
 	efx_rc_t rc;
 	size_t max_data_size;
+	size_t payload_len = enp->en_nic_cfg.enc_mcdi_max_payload_length;
 
-	max_data_size = enp->en_nic_cfg.enc_mcdi_max_payload_length
-	    - MC_CMD_NVRAM_WRITE_IN_LEN(0);
-	EFSYS_ASSERT3U(enp->en_nic_cfg.enc_mcdi_max_payload_length, >, 0);
-	EFSYS_ASSERT3U(max_data_size, <,
-		    enp->en_nic_cfg.enc_mcdi_max_payload_length);
+	max_data_size = payload_len - MC_CMD_NVRAM_WRITE_IN_LEN(0);
+	EFSYS_ASSERT3U(payload_len, >, 0);
+	EFSYS_ASSERT3U(max_data_size, <, payload_len);
 
 	if (size > max_data_size) {
 		rc = EINVAL;
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
+	EFSYS_KMEM_ALLOC(enp->en_esip, payload_len, payload);
+	if (payload == NULL) {
+		rc = ENOMEM;
+		goto fail2;
+	}
+
+	(void) memset(payload, 0, payload_len);
 	req.emr_cmd = MC_CMD_NVRAM_WRITE;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_NVRAM_WRITE_IN_LEN(size);
@@ -903,11 +901,16 @@ efx_mcdi_nvram_write(
 
 	if (req.emr_rc != 0) {
 		rc = req.emr_rc;
-		goto fail2;
+		goto fail3;
 	}
 
+	EFSYS_KMEM_FREE(enp->en_esip, payload_len, payload);
+
 	return (0);
 
+fail3:
+	EFSYS_PROBE(fail3);
+	EFSYS_KMEM_FREE(enp->en_esip, payload_len, payload);
 fail2:
 	EFSYS_PROBE(fail2);
 fail1:
@@ -930,12 +933,11 @@ efx_mcdi_nvram_update_finish(
 {
 	const efx_nic_cfg_t *encp = &enp->en_nic_cfg;
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_NVRAM_UPDATE_FINISH_V2_IN_LEN,
-			    MC_CMD_NVRAM_UPDATE_FINISH_V2_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_NVRAM_UPDATE_FINISH_V2_IN_LEN,
+		MC_CMD_NVRAM_UPDATE_FINISH_V2_OUT_LEN);
 	uint32_t verify_result = MC_CMD_NVRAM_VERIFY_RC_UNKNOWN;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_NVRAM_UPDATE_FINISH;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_NVRAM_UPDATE_FINISH_V2_IN_LEN;
@@ -1001,12 +1003,11 @@ efx_mcdi_nvram_test(
 	__in			uint32_t partn)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_NVRAM_TEST_IN_LEN,
-			    MC_CMD_NVRAM_TEST_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_NVRAM_TEST_IN_LEN,
+		MC_CMD_NVRAM_TEST_OUT_LEN);
 	int result;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_NVRAM_TEST;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_NVRAM_TEST_IN_LEN;
diff --git a/drivers/net/sfc/base/efx_phy.c b/drivers/net/sfc/base/efx_phy.c
index ba2f51c1..36a7bbd3 100644
--- a/drivers/net/sfc/base/efx_phy.c
+++ b/drivers/net/sfc/base/efx_phy.c
@@ -15,6 +15,7 @@ static const efx_phy_ops_t	__efx_phy_siena_ops = {
 	siena_phy_reconfigure,		/* epo_reconfigure */
 	siena_phy_verify,		/* epo_verify */
 	siena_phy_oui_get,		/* epo_oui_get */
+	NULL,				/* epo_link_state_get */
 #if EFSYS_OPT_PHY_STATS
 	siena_phy_stats_update,		/* epo_stats_update */
 #endif	/* EFSYS_OPT_PHY_STATS */
@@ -34,6 +35,7 @@ static const efx_phy_ops_t	__efx_phy_ef10_ops = {
 	ef10_phy_reconfigure,		/* epo_reconfigure */
 	ef10_phy_verify,		/* epo_verify */
 	ef10_phy_oui_get,		/* epo_oui_get */
+	ef10_phy_link_state_get,	/* epo_link_state_get */
 #if EFSYS_OPT_PHY_STATS
 	ef10_phy_stats_update,		/* epo_stats_update */
 #endif	/* EFSYS_OPT_PHY_STATS */
@@ -286,8 +288,8 @@ efx_phy_media_type_get(
 efx_phy_module_get_info(
 	__in			efx_nic_t *enp,
 	__in			uint8_t dev_addr,
-	__in			uint8_t offset,
-	__in			uint8_t len,
+	__in			size_t offset,
+	__in			size_t len,
 	__out_bcount(len)	uint8_t *data)
 {
 	efx_rc_t rc;
@@ -295,7 +297,8 @@ efx_phy_module_get_info(
 	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
 	EFSYS_ASSERT(data != NULL);
 
-	if ((uint32_t)offset + len > 0xff) {
+	if ((offset > EFX_PHY_MEDIA_INFO_MAX_OFFSET) ||
+	    ((offset + len) > EFX_PHY_MEDIA_INFO_MAX_OFFSET)) {
 		rc = EINVAL;
 		goto fail1;
 	}
@@ -314,6 +317,57 @@ fail1:
 	return (rc);
 }
 
+	__checkReturn		efx_rc_t
+efx_phy_fec_type_get(
+	__in		efx_nic_t *enp,
+	__out		efx_phy_fec_type_t *typep)
+{
+	efx_rc_t rc;
+	efx_phy_link_state_t epls;
+
+	if ((rc = efx_phy_link_state_get(enp, &epls)) != 0)
+		goto fail1;
+
+	*typep = epls.epls_fec;
+
+	return (0);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
+	__checkReturn		efx_rc_t
+efx_phy_link_state_get(
+	__in		efx_nic_t *enp,
+	__out		efx_phy_link_state_t *eplsp)
+{
+	efx_port_t *epp = &(enp->en_port);
+	const efx_phy_ops_t *epop = epp->ep_epop;
+	efx_rc_t rc;
+
+	EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+	EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
+
+	if (epop->epo_link_state_get == NULL) {
+		rc = ENOTSUP;
+		goto fail1;
+	}
+
+	if ((rc = epop->epo_link_state_get(enp, eplsp)) != 0)
+		goto fail2;
+
+	return (0);
+
+fail2:
+	EFSYS_PROBE(fail2);
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
 #if EFSYS_OPT_PHY_STATS
 
 #if EFSYS_OPT_NAMES
diff --git a/drivers/net/sfc/base/efx_port.c b/drivers/net/sfc/base/efx_port.c
index 33a1a084..5fff932b 100644
--- a/drivers/net/sfc/base/efx_port.c
+++ b/drivers/net/sfc/base/efx_port.c
@@ -37,7 +37,7 @@ efx_port_init(
 	epp->ep_emop->emo_reconfigure(enp);
 
 	/* Pick up current phy capababilities */
-	efx_port_poll(enp, NULL);
+	(void) efx_port_poll(enp, NULL);
 
 	/*
 	 * Turn on the PHY if available, otherwise reset it, and
diff --git a/drivers/net/sfc/base/efx_rx.c b/drivers/net/sfc/base/efx_rx.c
index 4fd73bab..04bc7aed 100644
--- a/drivers/net/sfc/base/efx_rx.c
+++ b/drivers/net/sfc/base/efx_rx.c
@@ -298,84 +298,104 @@ fail1:
 efx_rx_scale_hash_flags_get(
 	__in					efx_nic_t *enp,
 	__in					efx_rx_hash_alg_t hash_alg,
-	__inout_ecount(EFX_RX_HASH_NFLAGS)	unsigned int *flags,
+	__out_ecount_part(max_nflags, *nflagsp)	unsigned int *flagsp,
+	__in					unsigned int max_nflags,
 	__out					unsigned int *nflagsp)
 {
 	efx_nic_cfg_t *encp = &enp->en_nic_cfg;
-	boolean_t l4;
-	boolean_t additional_modes;
-	unsigned int *entryp = flags;
+	unsigned int nflags = 0;
 	efx_rc_t rc;
 
-	if (flags == NULL || nflagsp == NULL) {
+	if (flagsp == NULL || nflagsp == NULL) {
 		rc = EINVAL;
 		goto fail1;
 	}
 
-	l4 = encp->enc_rx_scale_l4_hash_supported;
-	additional_modes = encp->enc_rx_scale_additional_modes_supported;
+	if ((encp->enc_rx_scale_hash_alg_mask & (1U << hash_alg)) == 0) {
+		nflags = 0;
+		goto done;
+	}
 
-#define	LIST_FLAGS(_entryp, _class, _l4_hashing, _additional_modes)	\
-	do {								\
-		if (_l4_hashing) {					\
-			*(_entryp++) = EFX_RX_HASH(_class, 4TUPLE);	\
-									\
-			if (_additional_modes) {			\
-				*(_entryp++) =				\
-				    EFX_RX_HASH(_class, 2TUPLE_DST);	\
-				*(_entryp++) =				\
-				    EFX_RX_HASH(_class, 2TUPLE_SRC);	\
-			}						\
-		}							\
-									\
-		*(_entryp++) = EFX_RX_HASH(_class, 2TUPLE);		\
-									\
-		if (_additional_modes) {				\
-			*(_entryp++) = EFX_RX_HASH(_class, 1TUPLE_DST);	\
-			*(_entryp++) = EFX_RX_HASH(_class, 1TUPLE_SRC);	\
-		}							\
-									\
-		*(_entryp++) = EFX_RX_HASH(_class, DISABLE);		\
-									\
-		_NOTE(CONSTANTCONDITION)				\
+	/* Helper to add flags word to flags array without buffer overflow */
+#define	INSERT_FLAGS(_flags)			\
+	do {					\
+		if (nflags >= max_nflags) {	\
+			rc = E2BIG;		\
+			goto fail2;		\
+		}				\
+		*(flagsp + nflags) = (_flags);	\
+		nflags++;			\
+						\
+		_NOTE(CONSTANTCONDITION)	\
 	} while (B_FALSE)
 
-	switch (hash_alg) {
-	case EFX_RX_HASHALG_PACKED_STREAM:
-		if ((encp->enc_rx_scale_hash_alg_mask & (1U << hash_alg)) == 0)
-			break;
-		/* FALLTHRU */
-	case EFX_RX_HASHALG_TOEPLITZ:
-		if ((encp->enc_rx_scale_hash_alg_mask & (1U << hash_alg)) == 0)
-			break;
+	if (encp->enc_rx_scale_l4_hash_supported != B_FALSE) {
+		INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, 4TUPLE));
+		INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, 4TUPLE));
+	}
 
-		LIST_FLAGS(entryp, IPV4_TCP, l4, additional_modes);
-		LIST_FLAGS(entryp, IPV6_TCP, l4, additional_modes);
+	if ((encp->enc_rx_scale_l4_hash_supported != B_FALSE) &&
+	    (encp->enc_rx_scale_additional_modes_supported != B_FALSE)) {
+		INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, 2TUPLE_DST));
+		INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, 2TUPLE_SRC));
 
-		if (additional_modes) {
-			LIST_FLAGS(entryp, IPV4_UDP, l4, additional_modes);
-			LIST_FLAGS(entryp, IPV6_UDP, l4, additional_modes);
-		}
+		INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, 2TUPLE_DST));
+		INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, 2TUPLE_SRC));
 
-		LIST_FLAGS(entryp, IPV4, B_FALSE, additional_modes);
-		LIST_FLAGS(entryp, IPV6, B_FALSE, additional_modes);
-		break;
+		INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, 4TUPLE));
+		INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, 2TUPLE_DST));
+		INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, 2TUPLE_SRC));
 
-	default:
-		rc = EINVAL;
-		goto fail2;
+		INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, 4TUPLE));
+		INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, 2TUPLE_DST));
+		INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, 2TUPLE_SRC));
+	}
+
+	INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, 2TUPLE));
+	INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, 2TUPLE));
+
+	INSERT_FLAGS(EFX_RX_HASH(IPV4, 2TUPLE));
+	INSERT_FLAGS(EFX_RX_HASH(IPV6, 2TUPLE));
+
+	if (encp->enc_rx_scale_additional_modes_supported != B_FALSE) {
+		INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, 1TUPLE_DST));
+		INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, 1TUPLE_SRC));
+
+		INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, 1TUPLE_DST));
+		INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, 1TUPLE_SRC));
+
+		INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, 2TUPLE));
+		INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, 1TUPLE_DST));
+		INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, 1TUPLE_SRC));
+
+		INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, 2TUPLE));
+		INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, 1TUPLE_DST));
+		INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, 1TUPLE_SRC));
+
+		INSERT_FLAGS(EFX_RX_HASH(IPV4, 1TUPLE_DST));
+		INSERT_FLAGS(EFX_RX_HASH(IPV4, 1TUPLE_SRC));
+
+		INSERT_FLAGS(EFX_RX_HASH(IPV6, 1TUPLE_DST));
+		INSERT_FLAGS(EFX_RX_HASH(IPV6, 1TUPLE_SRC));
 	}
 
-#undef LIST_FLAGS
+	INSERT_FLAGS(EFX_RX_HASH(IPV4_TCP, DISABLE));
+	INSERT_FLAGS(EFX_RX_HASH(IPV6_TCP, DISABLE));
+
+	INSERT_FLAGS(EFX_RX_HASH(IPV4_UDP, DISABLE));
+	INSERT_FLAGS(EFX_RX_HASH(IPV6_UDP, DISABLE));
 
-	*nflagsp = (unsigned int)(entryp - flags);
-	EFSYS_ASSERT3U(*nflagsp, <=, EFX_RX_HASH_NFLAGS);
+	INSERT_FLAGS(EFX_RX_HASH(IPV4, DISABLE));
+	INSERT_FLAGS(EFX_RX_HASH(IPV6, DISABLE));
 
+#undef INSERT_FLAGS
+
+done:
+	*nflagsp = nflags;
 	return (0);
 
 fail2:
 	EFSYS_PROBE(fail2);
-
 fail1:
 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
 
@@ -512,9 +532,8 @@ efx_rx_scale_mode_set(
 	__in		efx_rx_hash_type_t type,
 	__in		boolean_t insert)
 {
+	efx_nic_cfg_t *encp = &enp->en_nic_cfg;
 	const efx_rx_ops_t *erxop = enp->en_erxop;
-	unsigned int type_flags[EFX_RX_HASH_NFLAGS];
-	unsigned int type_nflags;
 	efx_rx_hash_type_t type_check;
 	unsigned int i;
 	efx_rc_t rc;
@@ -533,46 +552,60 @@ efx_rx_scale_mode_set(
 	}
 
 	/*
-	 * Translate legacy flags to the new representation
-	 * so that chip-specific handlers will consider the
-	 * new flags only.
+	 * If RSS hash type is represented by additional bits
+	 * in the value, the latter need to be verified since
+	 * not all bit combinations are valid RSS modes. Also,
+	 * depending on the firmware, some valid combinations
+	 * may be unsupported. Discern additional bits in the
+	 * type value and try to recognise valid combinations.
+	 * If some bits remain unrecognised, report the error.
 	 */
-	if (type & EFX_RX_HASH_IPV4) {
-		type |= EFX_RX_HASH(IPV4, 2TUPLE);
-		type |= EFX_RX_HASH(IPV4_TCP, 2TUPLE);
-		type |= EFX_RX_HASH(IPV4_UDP, 2TUPLE);
-	}
-
-	if (type & EFX_RX_HASH_TCPIPV4)
-		type |= EFX_RX_HASH(IPV4_TCP, 4TUPLE);
+	type_check = type & ~EFX_RX_HASH_LEGACY_MASK;
+	if (type_check != 0) {
+		unsigned int type_flags[EFX_RX_HASH_NFLAGS];
+		unsigned int type_nflags;
 
-	if (type & EFX_RX_HASH_IPV6) {
-		type |= EFX_RX_HASH(IPV6, 2TUPLE);
-		type |= EFX_RX_HASH(IPV6_TCP, 2TUPLE);
-		type |= EFX_RX_HASH(IPV6_UDP, 2TUPLE);
-	}
+		rc = efx_rx_scale_hash_flags_get(enp, alg, type_flags,
+				    EFX_ARRAY_SIZE(type_flags), &type_nflags);
+		if (rc != 0)
+			goto fail2;
 
-	if (type & EFX_RX_HASH_TCPIPV6)
-		type |= EFX_RX_HASH(IPV6_TCP, 4TUPLE);
+		for (i = 0; i < type_nflags; ++i) {
+			if ((type_check & type_flags[i]) == type_flags[i])
+				type_check &= ~(type_flags[i]);
+		}
 
-	type &= ~EFX_RX_HASH_LEGACY_MASK;
-	type_check = type;
+		if (type_check != 0) {
+			rc = EINVAL;
+			goto fail3;
+		}
+	}
 
 	/*
-	 * Get the list of supported hash flags and sanitise the input.
+	 * Translate EFX_RX_HASH() flags to their legacy counterparts
+	 * provided that the FW claims no support for additional modes.
 	 */
-	rc = efx_rx_scale_hash_flags_get(enp, alg, type_flags, &type_nflags);
-	if (rc != 0)
-		goto fail2;
-
-	for (i = 0; i < type_nflags; ++i) {
-		if ((type_check & type_flags[i]) == type_flags[i])
-			type_check &= ~(type_flags[i]);
-	}
+	if (encp->enc_rx_scale_additional_modes_supported == B_FALSE) {
+		efx_rx_hash_type_t t_ipv4 = EFX_RX_HASH(IPV4, 2TUPLE) |
+					    EFX_RX_HASH(IPV4_TCP, 2TUPLE);
+		efx_rx_hash_type_t t_ipv6 = EFX_RX_HASH(IPV6, 2TUPLE) |
+					    EFX_RX_HASH(IPV6_TCP, 2TUPLE);
+		efx_rx_hash_type_t t_ipv4_tcp = EFX_RX_HASH(IPV4_TCP, 4TUPLE);
+		efx_rx_hash_type_t t_ipv6_tcp = EFX_RX_HASH(IPV6_TCP, 4TUPLE);
+
+		if ((type & t_ipv4) == t_ipv4)
+			type |= EFX_RX_HASH_IPV4;
+		if ((type & t_ipv6) == t_ipv6)
+			type |= EFX_RX_HASH_IPV6;
+
+		if (encp->enc_rx_scale_l4_hash_supported == B_TRUE) {
+			if ((type & t_ipv4_tcp) == t_ipv4_tcp)
+				type |= EFX_RX_HASH_TCPIPV4;
+			if ((type & t_ipv6_tcp) == t_ipv6_tcp)
+				type |= EFX_RX_HASH_TCPIPV6;
+		}
 
-	if (type_check != 0) {
-		rc = EINVAL;
-		goto fail3;
+		type &= EFX_RX_HASH_LEGACY_MASK;
 	}
 
 	if (erxop->erxo_scale_mode_set != NULL) {
@@ -831,7 +864,7 @@ efx_rx_qcreate_packed_stream(
 {
 	efx_rxq_type_data_t type_data;
 
-	memset(&type_data, 0, sizeof(type_data));
+	memset(&type_data, 0, sizeof (type_data));
 
 	type_data.ertd_packed_stream.eps_buf_size = ps_buf_size;
 
@@ -867,7 +900,7 @@ efx_rx_qcreate_es_super_buffer(
 		goto fail1;
 	}
 
-	memset(&type_data, 0, sizeof(type_data));
+	memset(&type_data, 0, sizeof (type_data));
 
 	type_data.ertd_es_super_buffer.eessb_bufs_per_desc = n_bufs_per_desc;
 	type_data.ertd_es_super_buffer.eessb_max_dma_len = max_dma_len;
@@ -1090,10 +1123,6 @@ siena_rx_scale_mode_set(
 	__in		efx_rx_hash_type_t type,
 	__in		boolean_t insert)
 {
-	efx_rx_hash_type_t type_ipv4 = EFX_RX_HASH(IPV4, 2TUPLE);
-	efx_rx_hash_type_t type_ipv4_tcp = EFX_RX_HASH(IPV4_TCP, 4TUPLE);
-	efx_rx_hash_type_t type_ipv6 = EFX_RX_HASH(IPV6, 2TUPLE);
-	efx_rx_hash_type_t type_ipv6_tcp = EFX_RX_HASH(IPV6_TCP, 4TUPLE);
 	efx_rc_t rc;
 
 	if (rss_context != EFX_RSS_CONTEXT_DEFAULT) {
@@ -1108,12 +1137,12 @@ siena_rx_scale_mode_set(
 
 	case EFX_RX_HASHALG_TOEPLITZ:
 		EFX_RX_TOEPLITZ_IPV4_HASH(enp, insert,
-		    (type & type_ipv4) == type_ipv4,
-		    (type & type_ipv4_tcp) == type_ipv4_tcp);
+		    (type & EFX_RX_HASH_IPV4) ? B_TRUE : B_FALSE,
+		    (type & EFX_RX_HASH_TCPIPV4) ? B_TRUE : B_FALSE);
 
 		EFX_RX_TOEPLITZ_IPV6_HASH(enp,
-		    (type & type_ipv6) == type_ipv6,
-		    (type & type_ipv6_tcp) == type_ipv6_tcp,
+		    (type & EFX_RX_HASH_IPV6) ? B_TRUE : B_FALSE,
+		    (type & EFX_RX_HASH_TCPIPV6) ? B_TRUE : B_FALSE,
 		    rc);
 		if (rc != 0)
 			goto fail2;
diff --git a/drivers/net/sfc/base/efx_tunnel.c b/drivers/net/sfc/base/efx_tunnel.c
index 399fd540..edb6be02 100644
--- a/drivers/net/sfc/base/efx_tunnel.c
+++ b/drivers/net/sfc/base/efx_tunnel.c
@@ -40,8 +40,9 @@ efx_mcdi_set_tunnel_encap_udp_ports(
 	__out			boolean_t *resetting)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_IN_LENMAX,
-			    MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload,
+		MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_IN_LENMAX,
+		MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_OUT_LEN);
 	efx_word_t flags;
 	efx_rc_t rc;
 	unsigned int i;
@@ -52,7 +53,6 @@ efx_mcdi_set_tunnel_encap_udp_ports(
 	else
 		entries_num = etcp->etc_udp_entries_num;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS;
 	req.emr_in_buf = payload;
 	req.emr_in_length =
diff --git a/drivers/net/sfc/base/efx_tx.c b/drivers/net/sfc/base/efx_tx.c
index da37580a..bf1180a1 100644
--- a/drivers/net/sfc/base/efx_tx.c
+++ b/drivers/net/sfc/base/efx_tx.c
@@ -572,19 +572,10 @@ efx_tx_qdesc_post(
 {
 	efx_nic_t *enp = etp->et_enp;
 	const efx_tx_ops_t *etxop = enp->en_etxop;
-	efx_rc_t rc;
 
 	EFSYS_ASSERT3U(etp->et_magic, ==, EFX_TXQ_MAGIC);
 
-	if ((rc = etxop->etxo_qdesc_post(etp, ed,
-	    ndescs, completed, addedp)) != 0)
-		goto fail1;
-
-	return (0);
-
-fail1:
-	EFSYS_PROBE1(fail1, efx_rc_t, rc);
-	return (rc);
+	return (etxop->etxo_qdesc_post(etp, ed, ndescs, completed, addedp));
 }
 
 	void
@@ -763,10 +754,9 @@ siena_tx_qpost(
 {
 	unsigned int added = *addedp;
 	unsigned int i;
-	int rc = ENOSPC;
 
 	if (added - completed + ndescs > EFX_TXQ_LIMIT(etp->et_mask + 1))
-		goto fail1;
+		return (ENOSPC);
 
 	for (i = 0; i < ndescs; i++) {
 		efx_buffer_t *ebp = &eb[i];
@@ -788,11 +778,6 @@ siena_tx_qpost(
 
 	*addedp = added;
 	return (0);
-
-fail1:
-	EFSYS_PROBE1(fail1, efx_rc_t, rc);
-
-	return (rc);
 }
 
 static		void
diff --git a/drivers/net/sfc/base/hunt_nic.c b/drivers/net/sfc/base/hunt_nic.c
index 16ea81d2..ca30e90f 100644
--- a/drivers/net/sfc/base/hunt_nic.c
+++ b/drivers/net/sfc/base/hunt_nic.c
@@ -20,7 +20,6 @@ hunt_nic_get_required_pcie_bandwidth(
 	__out		uint32_t *bandwidth_mbpsp)
 {
 	uint32_t port_modes;
-	uint32_t max_port_mode;
 	uint32_t bandwidth;
 	efx_rc_t rc;
 
@@ -30,7 +29,8 @@ hunt_nic_get_required_pcie_bandwidth(
 	 * capable mode is in use.
 	 */
 
-	if ((rc = efx_mcdi_get_port_modes(enp, &port_modes, NULL)) != 0) {
+	if ((rc = efx_mcdi_get_port_modes(enp, &port_modes,
+		    NULL, NULL)) != 0) {
 		/* No port mode info available */
 		bandwidth = 0;
 		goto out;
@@ -46,17 +46,13 @@ hunt_nic_get_required_pcie_bandwidth(
 			goto fail1;
 	} else {
 		if (port_modes & (1U << TLV_PORT_MODE_40G)) {
-			max_port_mode = TLV_PORT_MODE_40G;
+			bandwidth = 40000;
 		} else if (port_modes & (1U << TLV_PORT_MODE_10G_10G_10G_10G)) {
-			max_port_mode = TLV_PORT_MODE_10G_10G_10G_10G;
+			bandwidth = 4 * 10000;
 		} else {
 			/* Assume two 10G ports */
-			max_port_mode = TLV_PORT_MODE_10G_10G;
+			bandwidth = 2 * 10000;
 		}
-
-		if ((rc = ef10_nic_get_port_mode_bandwidth(max_port_mode,
-							    &bandwidth)) != 0)
-			goto fail2;
 	}
 
 out:
@@ -64,8 +60,6 @@ out:
 
 	return (0);
 
-fail2:
-	EFSYS_PROBE(fail2);
 fail1:
 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
 
@@ -189,6 +183,9 @@ hunt_board_cfg(
 
 	encp->enc_bug61265_workaround = B_FALSE; /* Medford only */
 
+	/* Checksums for TSO sends can be incorrect on Huntington. */
+	encp->enc_bug61297_workaround = B_TRUE;
+
 	/* Alignment for receive packet DMA buffers */
 	encp->enc_rx_buf_align_start = 1;
 	encp->enc_rx_buf_align_end = 64; /* RX DMA end padding */
diff --git a/drivers/net/sfc/base/mc_driver_pcol_strs.h b/drivers/net/sfc/base/mc_driver_pcol_strs.h
new file mode 100644
index 00000000..73d633cb
--- /dev/null
+++ b/drivers/net/sfc/base/mc_driver_pcol_strs.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright 2008-2018 Solarflare Communications Inc.
+ * All rights reserved.
+ */
+
+/*
+ * This file is automatically generated. DO NOT EDIT IT.
+ * To make changes, edit the .yml files under firmwaresrc doc/mcdi/ and
+ * rebuild this file with "make -C doc mcdiheaders".
+ *
+ * The version of this file has MCDI strings really used in the libefx.
+ */
+
+#ifndef _MC_DRIVER_PCOL_STRS_H
+#define _MC_DRIVER_PCOL_STRS_H
+
+#define MC_CMD_SENSOR_CONTROLLER_TEMP_ENUM_STR "Controller temperature: degC"
+#define MC_CMD_SENSOR_PHY_COMMON_TEMP_ENUM_STR "Phy common temperature: degC"
+#define MC_CMD_SENSOR_CONTROLLER_COOLING_ENUM_STR "Controller cooling: bool"
+#define MC_CMD_SENSOR_PHY0_TEMP_ENUM_STR "Phy 0 temperature: degC"
+#define MC_CMD_SENSOR_PHY0_COOLING_ENUM_STR "Phy 0 cooling: bool"
+#define MC_CMD_SENSOR_PHY1_TEMP_ENUM_STR "Phy 1 temperature: degC"
+#define MC_CMD_SENSOR_PHY1_COOLING_ENUM_STR "Phy 1 cooling: bool"
+#define MC_CMD_SENSOR_IN_1V0_ENUM_STR "1.0v power: mV"
+#define MC_CMD_SENSOR_IN_1V2_ENUM_STR "1.2v power: mV"
+#define MC_CMD_SENSOR_IN_1V8_ENUM_STR "1.8v power: mV"
+#define MC_CMD_SENSOR_IN_2V5_ENUM_STR "2.5v power: mV"
+#define MC_CMD_SENSOR_IN_3V3_ENUM_STR "3.3v power: mV"
+#define MC_CMD_SENSOR_IN_12V0_ENUM_STR "12v power: mV"
+#define MC_CMD_SENSOR_IN_1V2A_ENUM_STR "1.2v analogue power: mV"
+#define MC_CMD_SENSOR_IN_VREF_ENUM_STR "reference voltage: mV"
+#define MC_CMD_SENSOR_OUT_VAOE_ENUM_STR "AOE FPGA power: mV"
+#define MC_CMD_SENSOR_AOE_TEMP_ENUM_STR "AOE FPGA temperature: degC"
+#define MC_CMD_SENSOR_PSU_AOE_TEMP_ENUM_STR "AOE FPGA PSU temperature: degC"
+#define MC_CMD_SENSOR_PSU_TEMP_ENUM_STR "AOE PSU temperature: degC"
+#define MC_CMD_SENSOR_FAN_0_ENUM_STR "Fan 0 speed: RPM"
+#define MC_CMD_SENSOR_FAN_1_ENUM_STR "Fan 1 speed: RPM"
+#define MC_CMD_SENSOR_FAN_2_ENUM_STR "Fan 2 speed: RPM"
+#define MC_CMD_SENSOR_FAN_3_ENUM_STR "Fan 3 speed: RPM"
+#define MC_CMD_SENSOR_FAN_4_ENUM_STR "Fan 4 speed: RPM"
+#define MC_CMD_SENSOR_IN_VAOE_ENUM_STR "AOE FPGA input power: mV"
+#define MC_CMD_SENSOR_OUT_IAOE_ENUM_STR "AOE FPGA current: mA"
+#define MC_CMD_SENSOR_IN_IAOE_ENUM_STR "AOE FPGA input current: mA"
+#define MC_CMD_SENSOR_NIC_POWER_ENUM_STR "NIC power consumption: W"
+#define MC_CMD_SENSOR_IN_0V9_ENUM_STR "0.9v power voltage: mV"
+#define MC_CMD_SENSOR_IN_I0V9_ENUM_STR "0.9v power current: mA"
+#define MC_CMD_SENSOR_IN_I1V2_ENUM_STR "1.2v power current: mA"
+#define MC_CMD_SENSOR_PAGE0_NEXT_ENUM_STR "Not a sensor: reserved for the next page flag"
+#define MC_CMD_SENSOR_IN_0V9_ADC_ENUM_STR "0.9v power voltage (at ADC): mV"
+#define MC_CMD_SENSOR_CONTROLLER_2_TEMP_ENUM_STR "Controller temperature 2: degC"
+#define MC_CMD_SENSOR_VREG_INTERNAL_TEMP_ENUM_STR "Voltage regulator internal temperature: degC"
+#define MC_CMD_SENSOR_VREG_0V9_TEMP_ENUM_STR "0.9V voltage regulator temperature: degC"
+#define MC_CMD_SENSOR_VREG_1V2_TEMP_ENUM_STR "1.2V voltage regulator temperature: degC"
+#define MC_CMD_SENSOR_CONTROLLER_VPTAT_ENUM_STR "controller internal temperature sensor voltage (internal ADC): mV"
+#define MC_CMD_SENSOR_CONTROLLER_INTERNAL_TEMP_ENUM_STR "controller internal temperature (internal ADC): degC"
+#define MC_CMD_SENSOR_CONTROLLER_VPTAT_EXTADC_ENUM_STR "controller internal temperature sensor voltage (external ADC): mV"
+#define MC_CMD_SENSOR_CONTROLLER_INTERNAL_TEMP_EXTADC_ENUM_STR "controller internal temperature (external ADC): degC"
+#define MC_CMD_SENSOR_AMBIENT_TEMP_ENUM_STR "ambient temperature: degC"
+#define MC_CMD_SENSOR_AIRFLOW_ENUM_STR "air flow: bool"
+#define MC_CMD_SENSOR_VDD08D_VSS08D_CSR_ENUM_STR "voltage between VSS08D and VSS08D at CSR: mV"
+#define MC_CMD_SENSOR_VDD08D_VSS08D_CSR_EXTADC_ENUM_STR "voltage between VSS08D and VSS08D at CSR (external ADC): mV"
+#define MC_CMD_SENSOR_HOTPOINT_TEMP_ENUM_STR "Hotpoint temperature: degC"
+#define MC_CMD_SENSOR_PHY_POWER_PORT0_ENUM_STR "Port 0 PHY power switch over-current: bool"
+#define MC_CMD_SENSOR_PHY_POWER_PORT1_ENUM_STR "Port 1 PHY power switch over-current: bool"
+#define MC_CMD_SENSOR_MUM_VCC_ENUM_STR "Mop-up microcontroller reference voltage: mV"
+#define MC_CMD_SENSOR_IN_0V9_A_ENUM_STR "0.9v power phase A voltage: mV"
+#define MC_CMD_SENSOR_IN_I0V9_A_ENUM_STR "0.9v power phase A current: mA"
+#define MC_CMD_SENSOR_VREG_0V9_A_TEMP_ENUM_STR "0.9V voltage regulator phase A temperature: degC"
+#define MC_CMD_SENSOR_IN_0V9_B_ENUM_STR "0.9v power phase B voltage: mV"
+#define MC_CMD_SENSOR_IN_I0V9_B_ENUM_STR "0.9v power phase B current: mA"
+#define MC_CMD_SENSOR_VREG_0V9_B_TEMP_ENUM_STR "0.9V voltage regulator phase B temperature: degC"
+#define MC_CMD_SENSOR_CCOM_AVREG_1V2_SUPPLY_ENUM_STR "CCOM AVREG 1v2 supply (interval ADC): mV"
+#define MC_CMD_SENSOR_CCOM_AVREG_1V2_SUPPLY_EXTADC_ENUM_STR "CCOM AVREG 1v2 supply (external ADC): mV"
+#define MC_CMD_SENSOR_CCOM_AVREG_1V8_SUPPLY_ENUM_STR "CCOM AVREG 1v8 supply (interval ADC): mV"
+#define MC_CMD_SENSOR_CCOM_AVREG_1V8_SUPPLY_EXTADC_ENUM_STR "CCOM AVREG 1v8 supply (external ADC): mV"
+#define MC_CMD_SENSOR_CONTROLLER_RTS_ENUM_STR "CCOM RTS temperature: degC"
+#define MC_CMD_SENSOR_PAGE1_NEXT_ENUM_STR "Not a sensor: reserved for the next page flag"
+#define MC_CMD_SENSOR_CONTROLLER_MASTER_VPTAT_ENUM_STR "controller internal temperature sensor voltage on master core (internal ADC): mV"
+#define MC_CMD_SENSOR_CONTROLLER_MASTER_INTERNAL_TEMP_ENUM_STR "controller internal temperature on master core (internal ADC): degC"
+#define MC_CMD_SENSOR_CONTROLLER_MASTER_VPTAT_EXTADC_ENUM_STR "controller internal temperature sensor voltage on master core (external ADC): mV"
+#define MC_CMD_SENSOR_CONTROLLER_MASTER_INTERNAL_TEMP_EXTADC_ENUM_STR "controller internal temperature on master core (external ADC): degC"
+#define MC_CMD_SENSOR_CONTROLLER_SLAVE_VPTAT_ENUM_STR "controller internal temperature on slave core sensor voltage (internal ADC): mV"
+#define MC_CMD_SENSOR_CONTROLLER_SLAVE_INTERNAL_TEMP_ENUM_STR "controller internal temperature on slave core (internal ADC): degC"
+#define MC_CMD_SENSOR_CONTROLLER_SLAVE_VPTAT_EXTADC_ENUM_STR "controller internal temperature on slave core sensor voltage (external ADC): mV"
+#define MC_CMD_SENSOR_CONTROLLER_SLAVE_INTERNAL_TEMP_EXTADC_ENUM_STR "controller internal temperature on slave core (external ADC): degC"
+#define MC_CMD_SENSOR_SODIMM_VOUT_ENUM_STR "Voltage supplied to the SODIMMs from their power supply: mV"
+#define MC_CMD_SENSOR_SODIMM_0_TEMP_ENUM_STR "Temperature of SODIMM 0 (if installed): degC"
+#define MC_CMD_SENSOR_SODIMM_1_TEMP_ENUM_STR "Temperature of SODIMM 1 (if installed): degC"
+#define MC_CMD_SENSOR_PHY0_VCC_ENUM_STR "Voltage supplied to the QSFP #0 from their power supply: mV"
+#define MC_CMD_SENSOR_PHY1_VCC_ENUM_STR "Voltage supplied to the QSFP #1 from their power supply: mV"
+#define MC_CMD_SENSOR_CONTROLLER_TDIODE_TEMP_ENUM_STR "Controller die temperature (TDIODE): degC"
+#define MC_CMD_SENSOR_BOARD_FRONT_TEMP_ENUM_STR "Board temperature (front): degC"
+#define MC_CMD_SENSOR_BOARD_BACK_TEMP_ENUM_STR "Board temperature (back): degC"
+#define MC_CMD_SENSOR_IN_I1V8_ENUM_STR "1.8v power current: mA"
+#define MC_CMD_SENSOR_IN_I2V5_ENUM_STR "2.5v power current: mA"
+#define MC_CMD_SENSOR_IN_I3V3_ENUM_STR "3.3v power current: mA"
+#define MC_CMD_SENSOR_IN_I12V0_ENUM_STR "12v power current: mA"
+#define MC_CMD_SENSOR_IN_1V3_ENUM_STR "1.3v power: mV"
+#define MC_CMD_SENSOR_IN_I1V3_ENUM_STR "1.3v power current: mA"
+
+#endif /* _MC_DRIVER_PCOL_STRS_H */
diff --git a/drivers/net/sfc/base/mcdi_mon.c b/drivers/net/sfc/base/mcdi_mon.c
index 940bd026..b53de0d6 100644
--- a/drivers/net/sfc/base/mcdi_mon.c
+++ b/drivers/net/sfc/base/mcdi_mon.c
@@ -6,141 +6,15 @@
 
 #include "efx.h"
 #include "efx_impl.h"
+#include "mcdi_mon.h"
 
 #if EFSYS_OPT_MON_MCDI
 
 #if EFSYS_OPT_MON_STATS
 
-#define	MCDI_MON_NEXT_PAGE  ((uint16_t)0xfffe)
-#define	MCDI_MON_INVALID_SENSOR ((uint16_t)0xfffd)
-#define	MCDI_MON_PAGE_SIZE 0x20
-
-/* Bitmasks of valid port(s) for each sensor */
-#define	MCDI_MON_PORT_NONE	(0x00)
-#define	MCDI_MON_PORT_P1	(0x01)
-#define	MCDI_MON_PORT_P2	(0x02)
-#define	MCDI_MON_PORT_P3	(0x04)
-#define	MCDI_MON_PORT_P4	(0x08)
-#define	MCDI_MON_PORT_Px	(0xFFFF)
-
 /* Get port mask from one-based MCDI port number */
 #define	MCDI_MON_PORT_MASK(_emip) (1U << ((_emip)->emi_port - 1))
 
-/* Entry for MCDI sensor in sensor map */
-#define	STAT(portmask, stat)	\
-	{ (MCDI_MON_PORT_##portmask), (EFX_MON_STAT_##stat) }
-
-/* Entry for sensor next page flag in sensor map */
-#define	STAT_NEXT_PAGE()	\
-	{ MCDI_MON_PORT_NONE, MCDI_MON_NEXT_PAGE }
-
-/* Placeholder for gaps in the array */
-#define	STAT_NO_SENSOR()	\
-	{ MCDI_MON_PORT_NONE, MCDI_MON_INVALID_SENSOR }
-
-/* Map from MC sensors to monitor statistics */
-static const struct mcdi_sensor_map_s {
-	uint16_t	msm_port_mask;
-	uint16_t	msm_stat;
-} mcdi_sensor_map[] = {
-	/* Sensor page 0		MC_CMD_SENSOR_xxx */
-	STAT(Px, INT_TEMP),		/* 0x00 CONTROLLER_TEMP */
-	STAT(Px, EXT_TEMP),		/* 0x01 PHY_COMMON_TEMP */
-	STAT(Px, INT_COOLING),		/* 0x02 CONTROLLER_COOLING */
-	STAT(P1, EXT_TEMP),		/* 0x03 PHY0_TEMP */
-	STAT(P1, EXT_COOLING),		/* 0x04 PHY0_COOLING */
-	STAT(P2, EXT_TEMP),		/* 0x05 PHY1_TEMP */
-	STAT(P2, EXT_COOLING),		/* 0x06 PHY1_COOLING */
-	STAT(Px, 1V),			/* 0x07 IN_1V0 */
-	STAT(Px, 1_2V),			/* 0x08 IN_1V2 */
-	STAT(Px, 1_8V),			/* 0x09 IN_1V8 */
-	STAT(Px, 2_5V),			/* 0x0a IN_2V5 */
-	STAT(Px, 3_3V),			/* 0x0b IN_3V3 */
-	STAT(Px, 12V),			/* 0x0c IN_12V0 */
-	STAT(Px, 1_2VA),		/* 0x0d IN_1V2A */
-	STAT(Px, VREF),			/* 0x0e IN_VREF */
-	STAT(Px, VAOE),			/* 0x0f OUT_VAOE */
-	STAT(Px, AOE_TEMP),		/* 0x10 AOE_TEMP */
-	STAT(Px, PSU_AOE_TEMP),		/* 0x11 PSU_AOE_TEMP */
-	STAT(Px, PSU_TEMP),		/* 0x12 PSU_TEMP */
-	STAT(Px, FAN0),			/* 0x13 FAN_0 */
-	STAT(Px, FAN1),			/* 0x14 FAN_1 */
-	STAT(Px, FAN2),			/* 0x15 FAN_2 */
-	STAT(Px, FAN3),			/* 0x16 FAN_3 */
-	STAT(Px, FAN4),			/* 0x17 FAN_4 */
-	STAT(Px, VAOE_IN),		/* 0x18 IN_VAOE */
-	STAT(Px, IAOE),			/* 0x19 OUT_IAOE */
-	STAT(Px, IAOE_IN),		/* 0x1a IN_IAOE */
-	STAT(Px, NIC_POWER),		/* 0x1b NIC_POWER */
-	STAT(Px, 0_9V),			/* 0x1c IN_0V9 */
-	STAT(Px, I0_9V),		/* 0x1d IN_I0V9 */
-	STAT(Px, I1_2V),		/* 0x1e IN_I1V2 */
-	STAT_NEXT_PAGE(),		/* 0x1f Next page flag (not a sensor) */
-
-	/* Sensor page 1		MC_CMD_SENSOR_xxx */
-	STAT(Px, 0_9V_ADC),		/* 0x20 IN_0V9_ADC */
-	STAT(Px, INT_TEMP2),		/* 0x21 CONTROLLER_2_TEMP */
-	STAT(Px, VREG_TEMP),		/* 0x22 VREG_INTERNAL_TEMP */
-	STAT(Px, VREG_0_9V_TEMP),	/* 0x23 VREG_0V9_TEMP */
-	STAT(Px, VREG_1_2V_TEMP),	/* 0x24 VREG_1V2_TEMP */
-	STAT(Px, INT_VPTAT),		/* 0x25 CTRLR. VPTAT */
-	STAT(Px, INT_ADC_TEMP),		/* 0x26 CTRLR. INTERNAL_TEMP */
-	STAT(Px, EXT_VPTAT),		/* 0x27 CTRLR. VPTAT_EXTADC */
-	STAT(Px, EXT_ADC_TEMP),		/* 0x28 CTRLR. INTERNAL_TEMP_EXTADC */
-	STAT(Px, AMBIENT_TEMP),		/* 0x29 AMBIENT_TEMP */
-	STAT(Px, AIRFLOW),		/* 0x2a AIRFLOW */
-	STAT(Px, VDD08D_VSS08D_CSR),	/* 0x2b VDD08D_VSS08D_CSR */
-	STAT(Px, VDD08D_VSS08D_CSR_EXTADC), /* 0x2c VDD08D_VSS08D_CSR_EXTADC */
-	STAT(Px, HOTPOINT_TEMP),	/* 0x2d HOTPOINT_TEMP */
-	STAT(P1, PHY_POWER_SWITCH_PORT0),   /* 0x2e PHY_POWER_SWITCH_PORT0 */
-	STAT(P2, PHY_POWER_SWITCH_PORT1),   /* 0x2f PHY_POWER_SWITCH_PORT1 */
-	STAT(Px, MUM_VCC),		/* 0x30 MUM_VCC */
-	STAT(Px, 0V9_A),		/* 0x31 0V9_A */
-	STAT(Px, I0V9_A),		/* 0x32 I0V9_A */
-	STAT(Px, 0V9_A_TEMP),		/* 0x33 0V9_A_TEMP */
-	STAT(Px, 0V9_B),		/* 0x34 0V9_B */
-	STAT(Px, I0V9_B),		/* 0x35 I0V9_B */
-	STAT(Px, 0V9_B_TEMP),		/* 0x36 0V9_B_TEMP */
-	STAT(Px, CCOM_AVREG_1V2_SUPPLY),  /* 0x37 CCOM_AVREG_1V2_SUPPLY */
-	STAT(Px, CCOM_AVREG_1V2_SUPPLY_EXT_ADC),
-					/* 0x38 CCOM_AVREG_1V2_SUPPLY_EXT_ADC */
-	STAT(Px, CCOM_AVREG_1V8_SUPPLY),  /* 0x39 CCOM_AVREG_1V8_SUPPLY */
-	STAT(Px, CCOM_AVREG_1V8_SUPPLY_EXT_ADC),
-					/* 0x3a CCOM_AVREG_1V8_SUPPLY_EXT_ADC */
-	STAT_NO_SENSOR(),		/* 0x3b (no sensor) */
-	STAT_NO_SENSOR(),		/* 0x3c (no sensor) */
-	STAT_NO_SENSOR(),		/* 0x3d (no sensor) */
-	STAT_NO_SENSOR(),		/* 0x3e (no sensor) */
-	STAT_NEXT_PAGE(),		/* 0x3f Next page flag (not a sensor) */
-
-	/* Sensor page 2		MC_CMD_SENSOR_xxx */
-	STAT(Px, CONTROLLER_MASTER_VPTAT),	   /* 0x40 MASTER_VPTAT */
-	STAT(Px, CONTROLLER_MASTER_INTERNAL_TEMP), /* 0x41 MASTER_INT_TEMP */
-	STAT(Px, CONTROLLER_MASTER_VPTAT_EXT_ADC), /* 0x42 MAST_VPTAT_EXT_ADC */
-	STAT(Px, CONTROLLER_MASTER_INTERNAL_TEMP_EXT_ADC),
-					/* 0x43 MASTER_INTERNAL_TEMP_EXT_ADC */
-	STAT(Px, CONTROLLER_SLAVE_VPTAT),	  /* 0x44 SLAVE_VPTAT */
-	STAT(Px, CONTROLLER_SLAVE_INTERNAL_TEMP), /* 0x45 SLAVE_INTERNAL_TEMP */
-	STAT(Px, CONTROLLER_SLAVE_VPTAT_EXT_ADC), /* 0x46 SLAVE_VPTAT_EXT_ADC */
-	STAT(Px, CONTROLLER_SLAVE_INTERNAL_TEMP_EXT_ADC),
-					/* 0x47 SLAVE_INTERNAL_TEMP_EXT_ADC */
-	STAT_NO_SENSOR(),		/* 0x48 (no sensor) */
-	STAT(Px, SODIMM_VOUT),		/* 0x49 SODIMM_VOUT */
-	STAT(Px, SODIMM_0_TEMP),	/* 0x4a SODIMM_0_TEMP */
-	STAT(Px, SODIMM_1_TEMP),	/* 0x4b SODIMM_1_TEMP */
-	STAT(Px, PHY0_VCC),		/* 0x4c PHY0_VCC */
-	STAT(Px, PHY1_VCC),		/* 0x4d PHY1_VCC */
-	STAT(Px, CONTROLLER_TDIODE_TEMP), /* 0x4e CONTROLLER_TDIODE_TEMP */
-	STAT(Px, BOARD_FRONT_TEMP),	/* 0x4f BOARD_FRONT_TEMP */
-	STAT(Px, BOARD_BACK_TEMP),	/* 0x50 BOARD_BACK_TEMP */
-	STAT(Px, I1V8),			/* 0x51 IN_I1V8 */
-	STAT(Px, I2V5),			/* 0x52 IN_I2V5 */
-	STAT(Px, I3V3),			/* 0x53 IN_I3V3 */
-	STAT(Px, I12V0),		/* 0x54 IN_I12V0 */
-	STAT(Px, 1_3V),			/* 0x55 IN_1V3 */
-	STAT(Px, I1V3),			/* 0x56 IN_I1V3 */
-};
-
 #define	MCDI_STATIC_SENSOR_ASSERT(_field)				\
 	EFX_STATIC_ASSERT(MC_CMD_SENSOR_STATE_ ## _field		\
 			    == EFX_MON_STAT_STATE_ ## _field)
@@ -155,10 +29,10 @@ mcdi_mon_decode_stats(
 	__inout_ecount_opt(EFX_MON_NSTATS)	efx_mon_stat_value_t *stat)
 {
 	efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
-	uint16_t port_mask;
+	efx_mon_stat_portmask_t port_mask;
 	uint16_t sensor;
 	size_t sensor_max;
-	uint32_t stat_mask[(EFX_ARRAY_SIZE(mcdi_sensor_map) + 31) / 32];
+	uint32_t stat_mask[(EFX_MON_NSTATS + 31) / 32];
 	uint32_t idx = 0;
 	uint32_t page = 0;
 
@@ -169,13 +43,10 @@ mcdi_mon_decode_stats(
 	MCDI_STATIC_SENSOR_ASSERT(BROKEN);
 	MCDI_STATIC_SENSOR_ASSERT(NO_READING);
 
-	EFX_STATIC_ASSERT(sizeof (stat_mask[0]) * 8 ==
-	    EFX_MON_MASK_ELEMENT_SIZE);
-	sensor_max =
-	    MIN((8 * sensor_mask_size), EFX_ARRAY_SIZE(mcdi_sensor_map));
+	sensor_max = 8 * sensor_mask_size;
 
 	EFSYS_ASSERT(emip->emi_port > 0); /* MCDI port number is one-based */
-	port_mask = MCDI_MON_PORT_MASK(emip);
+	port_mask = (efx_mon_stat_portmask_t)MCDI_MON_PORT_MASK(emip);
 
 	memset(stat_mask, 0, sizeof (stat_mask));
 
@@ -190,19 +61,36 @@ mcdi_mon_decode_stats(
 	 * does not understand.
 	 */
 	for (sensor = 0; sensor < sensor_max; ++sensor) {
-		efx_mon_stat_t id = mcdi_sensor_map[sensor].msm_stat;
+		efx_mon_stat_t id;
+		efx_mon_stat_portmask_t stat_portmask = 0;
+		boolean_t decode_ok;
+		efx_mon_stat_unit_t stat_unit;
 
-		if ((sensor % MCDI_MON_PAGE_SIZE) == MC_CMD_SENSOR_PAGE0_NEXT) {
-			EFSYS_ASSERT3U(id, ==, MCDI_MON_NEXT_PAGE);
+		if ((sensor % (MC_CMD_SENSOR_PAGE0_NEXT + 1)) ==
+		    MC_CMD_SENSOR_PAGE0_NEXT) {
 			page++;
 			continue;
+			/* This sensor is one of the page boundary bits. */
 		}
+
 		if (~(sensor_mask[page]) & (1U << sensor))
 			continue;
+		/* This sensor not in DMA buffer */
+
 		idx++;
+		/*
+		 * Valid stat in DMA buffer that we need to increment over, even
+		 * if we couldn't look up the id
+		 */
+
+		decode_ok = efx_mon_mcdi_to_efx_stat(sensor, &id);
+		decode_ok =
+		    decode_ok && efx_mon_get_stat_portmap(id, &stat_portmask);
 
-		if ((port_mask & mcdi_sensor_map[sensor].msm_port_mask) == 0)
+		if (!(decode_ok && (stat_portmask & port_mask)))
 			continue;
+		/* Either bad decode, or don't know what port stat is on */
+
 		EFSYS_ASSERT(id < EFX_MON_NSTATS);
 
 		/*
@@ -228,6 +116,10 @@ mcdi_mon_decode_stats(
 
 			stat[id].emsv_state = (uint16_t)EFX_DWORD_FIELD(dword,
 			    MC_CMD_SENSOR_VALUE_ENTRY_TYPEDEF_STATE);
+
+			stat[id].emsv_unit =
+			    efx_mon_get_stat_unit(id, &stat_unit) ?
+			    stat_unit : EFX_MON_STAT_UNIT_UNKNOWN;
 		}
 	}
 
@@ -244,7 +136,7 @@ mcdi_mon_ev(
 	__out				efx_mon_stat_value_t *valuep)
 {
 	efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
-	uint16_t port_mask;
+	efx_mon_stat_portmask_t port_mask, sensor_port_mask;
 	uint16_t sensor;
 	uint16_t state;
 	uint16_t value;
@@ -261,20 +153,22 @@ mcdi_mon_ev(
 	/* Hardware must support this MCDI sensor */
 	EFSYS_ASSERT3U(sensor, <,
 	    (8 * enp->en_nic_cfg.enc_mcdi_sensor_mask_size));
-	EFSYS_ASSERT((sensor % MCDI_MON_PAGE_SIZE) != MC_CMD_SENSOR_PAGE0_NEXT);
+	EFSYS_ASSERT((sensor % (MC_CMD_SENSOR_PAGE0_NEXT + 1)) !=
+	    MC_CMD_SENSOR_PAGE0_NEXT);
 	EFSYS_ASSERT(enp->en_nic_cfg.enc_mcdi_sensor_maskp != NULL);
-	EFSYS_ASSERT(
-	    (enp->en_nic_cfg.enc_mcdi_sensor_maskp[sensor/MCDI_MON_PAGE_SIZE] &
-	    (1U << (sensor % MCDI_MON_PAGE_SIZE))) != 0);
+	EFSYS_ASSERT((enp->en_nic_cfg.enc_mcdi_sensor_maskp[
+		    sensor / (MC_CMD_SENSOR_PAGE0_NEXT + 1)] &
+		(1U << (sensor % (MC_CMD_SENSOR_PAGE0_NEXT + 1)))) != 0);
 
-	/* But we don't have to understand it */
-	if (sensor >= EFX_ARRAY_SIZE(mcdi_sensor_map)) {
+	/* And we need to understand it, to get port-map */
+	if (!efx_mon_mcdi_to_efx_stat(sensor, &id)) {
 		rc = ENOTSUP;
 		goto fail1;
 	}
-	id = mcdi_sensor_map[sensor].msm_stat;
-	if ((port_mask & mcdi_sensor_map[sensor].msm_port_mask) == 0)
+	if (!(efx_mon_get_stat_portmap(id, &sensor_port_mask) &&
+		(port_mask && sensor_port_mask))) {
 		return (ENODEV);
+	}
 	EFSYS_ASSERT(id < EFX_MON_NSTATS);
 
 	*idp = id;
@@ -297,9 +191,15 @@ efx_mcdi_read_sensors(
 	__in		uint32_t size)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_READ_SENSORS_EXT_IN_LEN,
-			    MC_CMD_READ_SENSORS_EXT_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_READ_SENSORS_EXT_IN_LEN,
+		MC_CMD_READ_SENSORS_EXT_OUT_LEN);
 	uint32_t addr_lo, addr_hi;
+	efx_rc_t rc;
+
+	if (EFSYS_MEM_SIZE(esmp) < size) {
+		rc = EINVAL;
+		goto fail1;
+	}
 
 	req.emr_cmd = MC_CMD_READ_SENSORS;
 	req.emr_in_buf = payload;
@@ -317,6 +217,11 @@ efx_mcdi_read_sensors(
 	efx_mcdi_execute(enp, &req);
 
 	return (req.emr_rc);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
 }
 
 static	__checkReturn	efx_rc_t
@@ -325,8 +230,8 @@ efx_mcdi_sensor_info_npages(
 	__out		uint32_t *npagesp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_SENSOR_INFO_EXT_IN_LEN,
-			    MC_CMD_SENSOR_INFO_OUT_LENMAX)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SENSOR_INFO_EXT_IN_LEN,
+		MC_CMD_SENSOR_INFO_OUT_LENMAX);
 	int page;
 	efx_rc_t rc;
 
@@ -369,8 +274,8 @@ efx_mcdi_sensor_info(
 	__in			size_t npages)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_SENSOR_INFO_EXT_IN_LEN,
-			    MC_CMD_SENSOR_INFO_OUT_LENMAX)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SENSOR_INFO_EXT_IN_LEN,
+		MC_CMD_SENSOR_INFO_OUT_LENMAX);
 	uint32_t page;
 	efx_rc_t rc;
 
@@ -429,6 +334,86 @@ fail1:
 	return (rc);
 }
 
+static	__checkReturn		efx_rc_t
+efx_mcdi_sensor_info_page(
+	__in			efx_nic_t *enp,
+	__in			uint32_t page,
+	__out			uint32_t *mask_part,
+	__out_ecount((sizeof (*mask_part) * 8) - 1)
+				efx_mon_stat_limits_t *limits)
+{
+	efx_mcdi_req_t req;
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SENSOR_INFO_EXT_IN_LEN,
+		MC_CMD_SENSOR_INFO_OUT_LENMAX);
+	efx_rc_t rc;
+	uint32_t mask_copy;
+	efx_dword_t *maskp;
+	efx_qword_t *limit_info;
+
+	EFSYS_ASSERT(mask_part != NULL);
+	EFSYS_ASSERT(limits != NULL);
+
+	memset(limits, 0,
+	    ((sizeof (*mask_part) * 8) - 1) * sizeof (efx_mon_stat_limits_t));
+
+	req.emr_cmd = MC_CMD_SENSOR_INFO;
+	req.emr_in_buf = payload;
+	req.emr_in_length = MC_CMD_SENSOR_INFO_EXT_IN_LEN;
+	req.emr_out_buf = payload;
+	req.emr_out_length = MC_CMD_SENSOR_INFO_OUT_LENMAX;
+
+	MCDI_IN_SET_DWORD(req, SENSOR_INFO_EXT_IN_PAGE, page);
+
+	efx_mcdi_execute(enp, &req);
+
+	rc = req.emr_rc;
+
+	if (rc != 0)
+		goto fail1;
+
+	EFSYS_ASSERT(sizeof (*limit_info) ==
+	    MC_CMD_SENSOR_INFO_ENTRY_TYPEDEF_LEN);
+	maskp = MCDI_OUT2(req, efx_dword_t, SENSOR_INFO_OUT_MASK);
+	limit_info = (efx_qword_t *)(maskp + 1);
+
+	*mask_part = maskp->ed_u32[0];
+	mask_copy = *mask_part;
+
+	/* Copy an entry for all but the highest bit set. */
+	while (mask_copy) {
+
+		if (mask_copy == (1U << MC_CMD_SENSOR_PAGE0_NEXT)) {
+			/* Only next page bit set. */
+			mask_copy = 0;
+		} else {
+			/* Clear lowest bit */
+			mask_copy = mask_copy & ~(mask_copy ^ (mask_copy - 1));
+			/* And copy out limit entry into buffer */
+			limits->emlv_warning_min = EFX_QWORD_FIELD(*limit_info,
+			    MC_CMD_SENSOR_INFO_ENTRY_TYPEDEF_MIN1);
+
+			limits->emlv_warning_max = EFX_QWORD_FIELD(*limit_info,
+			    MC_CMD_SENSOR_INFO_ENTRY_TYPEDEF_MAX1);
+
+			limits->emlv_fatal_min = EFX_QWORD_FIELD(*limit_info,
+			    MC_CMD_SENSOR_INFO_ENTRY_TYPEDEF_MIN2);
+
+			limits->emlv_fatal_max = EFX_QWORD_FIELD(*limit_info,
+			    MC_CMD_SENSOR_INFO_ENTRY_TYPEDEF_MAX2);
+
+			limits++;
+			limit_info++;
+		}
+	}
+
+	return (rc);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
 	__checkReturn			efx_rc_t
 mcdi_mon_stats_update(
 	__in				efx_nic_t *enp,
@@ -457,6 +442,96 @@ fail1:
 	return (rc);
 }
 
+static		void
+lowest_set_bit(
+	__in	uint32_t input_mask,
+	__out	uint32_t *lowest_bit_mask,
+	__out	uint32_t *lowest_bit_num
+)
+{
+	uint32_t x;
+	uint32_t set_bit, bit_index;
+
+	x = (input_mask ^ (input_mask - 1));
+	set_bit = (x + 1) >> 1;
+	if (!set_bit)
+		set_bit = (1U << 31U);
+
+	bit_index = 0;
+	if (set_bit & 0xFFFF0000)
+		bit_index += 16;
+	if (set_bit & 0xFF00FF00)
+		bit_index += 8;
+	if (set_bit & 0xF0F0F0F0)
+		bit_index += 4;
+	if (set_bit & 0xCCCCCCCC)
+		bit_index += 2;
+	if (set_bit & 0xAAAAAAAA)
+		bit_index += 1;
+
+	*lowest_bit_mask = set_bit;
+	*lowest_bit_num = bit_index;
+}
+
+	__checkReturn			efx_rc_t
+mcdi_mon_limits_update(
+	__in				efx_nic_t *enp,
+	__inout_ecount(EFX_MON_NSTATS)	efx_mon_stat_limits_t *values)
+{
+	efx_rc_t rc;
+	uint32_t page;
+	uint32_t page_mask;
+	uint32_t limit_index;
+	efx_mon_stat_limits_t limits[sizeof (page_mask) * 8];
+	efx_mon_stat_t stat;
+
+	page = 0;
+	page--;
+	do {
+		page++;
+
+		rc = efx_mcdi_sensor_info_page(enp, page, &page_mask, limits);
+		if (rc != 0)
+			goto fail1;
+
+		limit_index = 0;
+		while (page_mask) {
+			uint32_t set_bit;
+			uint32_t page_index;
+			uint32_t mcdi_index;
+
+			if (page_mask == (1U << MC_CMD_SENSOR_PAGE0_NEXT))
+				break;
+
+			lowest_set_bit(page_mask, &set_bit, &page_index);
+			page_mask = page_mask & ~set_bit;
+
+			mcdi_index =
+			    page_index + (sizeof (page_mask) * 8 * page);
+
+			/*
+			 * This can fail if MCDI reports newer stats than the
+			 * drivers understand, or the bit is the next page bit.
+			 *
+			 * Driver needs to be tolerant of this.
+			 */
+			if (!efx_mon_mcdi_to_efx_stat(mcdi_index, &stat))
+				continue;
+
+			values[stat] = limits[limit_index];
+			limit_index++;
+		}
+
+	} while (page_mask & (1U << MC_CMD_SENSOR_PAGE0_NEXT));
+
+	return (rc);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
+}
+
 	__checkReturn	efx_rc_t
 mcdi_mon_cfg_build(
 	__in		efx_nic_t *enp)
diff --git a/drivers/net/sfc/base/mcdi_mon.h b/drivers/net/sfc/base/mcdi_mon.h
index 5aa6a6a2..5eba0901 100644
--- a/drivers/net/sfc/base/mcdi_mon.h
+++ b/drivers/net/sfc/base/mcdi_mon.h
@@ -39,6 +39,11 @@ mcdi_mon_stats_update(
 	__in				efsys_mem_t *esmp,
 	__inout_ecount(EFX_MON_NSTATS)	efx_mon_stat_value_t *values);
 
+extern	__checkReturn			efx_rc_t
+mcdi_mon_limits_update(
+	__in				efx_nic_t *enp,
+	__inout_ecount(EFX_MON_NSTATS)	efx_mon_stat_limits_t *values);
+
 #endif	/* EFSYS_OPT_MON_STATS */
 
 #endif /* EFSYS_OPT_MON_MCDI */
diff --git a/drivers/net/sfc/base/medford2_nic.c b/drivers/net/sfc/base/medford2_nic.c
index 7f5ad175..6bc1e87c 100644
--- a/drivers/net/sfc/base/medford2_nic.c
+++ b/drivers/net/sfc/base/medford2_nic.c
@@ -15,25 +15,15 @@ medford2_nic_get_required_pcie_bandwidth(
 	__in		efx_nic_t *enp,
 	__out		uint32_t *bandwidth_mbpsp)
 {
-	uint32_t port_modes;
-	uint32_t current_mode;
 	uint32_t bandwidth;
 	efx_rc_t rc;
 
 	/* FIXME: support new Medford2 dynamic port modes */
 
-	if ((rc = efx_mcdi_get_port_modes(enp, &port_modes,
-				    &current_mode)) != 0) {
-		/* No port mode info available. */
-		bandwidth = 0;
-		goto out;
-	}
-
-	if ((rc = ef10_nic_get_port_mode_bandwidth(current_mode,
+	if ((rc = ef10_nic_get_port_mode_bandwidth(enp,
 						    &bandwidth)) != 0)
 		goto fail1;
 
-out:
 	*bandwidth_mbpsp = bandwidth;
 
 	return (0);
@@ -96,6 +86,9 @@ medford2_board_cfg(
 	else
 		goto fail1;
 
+	/* Checksums for TSO sends should always be correct on Medford2. */
+	encp->enc_bug61297_workaround = B_FALSE;
+
 	/* Get clock frequencies (in MHz). */
 	if ((rc = efx_mcdi_get_clock(enp, &sysclk, &dpcpu_clk)) != 0)
 		goto fail2;
diff --git a/drivers/net/sfc/base/medford_nic.c b/drivers/net/sfc/base/medford_nic.c
index 6dc895f5..bfe01ca9 100644
--- a/drivers/net/sfc/base/medford_nic.c
+++ b/drivers/net/sfc/base/medford_nic.c
@@ -15,23 +15,13 @@ medford_nic_get_required_pcie_bandwidth(
 	__in		efx_nic_t *enp,
 	__out		uint32_t *bandwidth_mbpsp)
 {
-	uint32_t port_modes;
-	uint32_t current_mode;
 	uint32_t bandwidth;
 	efx_rc_t rc;
 
-	if ((rc = efx_mcdi_get_port_modes(enp, &port_modes,
-				    &current_mode)) != 0) {
-		/* No port mode info available. */
-		bandwidth = 0;
-		goto out;
-	}
-
-	if ((rc = ef10_nic_get_port_mode_bandwidth(current_mode,
+	if ((rc = ef10_nic_get_port_mode_bandwidth(enp,
 						    &bandwidth)) != 0)
 		goto fail1;
 
-out:
 	*bandwidth_mbpsp = bandwidth;
 
 	return (0);
@@ -94,6 +84,9 @@ medford_board_cfg(
 	else
 		goto fail1;
 
+	/* Checksums for TSO sends can be incorrect on Medford. */
+	encp->enc_bug61297_workaround = B_TRUE;
+
 	/* Get clock frequencies (in MHz). */
 	if ((rc = efx_mcdi_get_clock(enp, &sysclk, &dpcpu_clk)) != 0)
 		goto fail2;
diff --git a/drivers/net/sfc/base/meson.build b/drivers/net/sfc/base/meson.build
index da2bf44d..ab66f32f 100644
--- a/drivers/net/sfc/base/meson.build
+++ b/drivers/net/sfc/base/meson.build
@@ -58,6 +58,9 @@ extra_flags = [
 ]
 
 c_args = cflags
+if allow_experimental_apis
+	c_args += '-DALLOW_EXPERIMENTAL_API'
+endif
 foreach flag: extra_flags
 	if cc.has_argument(flag)
 		c_args += flag
diff --git a/drivers/net/sfc/base/siena_mac.c b/drivers/net/sfc/base/siena_mac.c
index f8857cdd..928dfc34 100644
--- a/drivers/net/sfc/base/siena_mac.c
+++ b/drivers/net/sfc/base/siena_mac.c
@@ -68,14 +68,13 @@ siena_mac_reconfigure(
 	efx_port_t *epp = &(enp->en_port);
 	efx_oword_t multicast_hash[2];
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MAX(MC_CMD_SET_MAC_IN_LEN,
-				MC_CMD_SET_MAC_OUT_LEN),
-			    MAX(MC_CMD_SET_MCAST_HASH_IN_LEN,
-				MC_CMD_SET_MCAST_HASH_OUT_LEN))];
+	EFX_MCDI_DECLARE_BUF(payload,
+		MAX(MC_CMD_SET_MAC_IN_LEN, MC_CMD_SET_MCAST_HASH_IN_LEN),
+		MAX(MC_CMD_SET_MAC_OUT_LEN, MC_CMD_SET_MCAST_HASH_OUT_LEN));
+
 	unsigned int fcntl;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_SET_MAC;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_SET_MAC_IN_LEN;
diff --git a/drivers/net/sfc/base/siena_nic.c b/drivers/net/sfc/base/siena_nic.c
index 31eef80b..fca17171 100644
--- a/drivers/net/sfc/base/siena_nic.c
+++ b/drivers/net/sfc/base/siena_nic.c
@@ -18,11 +18,10 @@ siena_nic_get_partn_mask(
 	__out			unsigned int *maskp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_NVRAM_TYPES_IN_LEN,
-			    MC_CMD_NVRAM_TYPES_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_NVRAM_TYPES_IN_LEN,
+		MC_CMD_NVRAM_TYPES_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_NVRAM_TYPES;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_NVRAM_TYPES_IN_LEN;
@@ -115,6 +114,7 @@ siena_board_cfg(
 	/* Alignment for WPTR updates */
 	encp->enc_rx_push_align = 1;
 
+#if EFSYS_OPT_RX_SCALE
 	/* There is one RSS context per function */
 	encp->enc_rx_scale_max_exclusive_contexts = 1;
 
@@ -129,6 +129,7 @@ siena_board_cfg(
 
 	/* There is no support for additional RSS modes */
 	encp->enc_rx_scale_additional_modes_supported = B_FALSE;
+#endif /* EFSYS_OPT_RX_SCALE */
 
 	encp->enc_tx_dma_desc_size_max = EFX_MASK32(FSF_AZ_TX_KER_BYTE_COUNT);
 	/* Fragments must not span 4k boundaries. */
diff --git a/drivers/net/sfc/base/siena_nvram.c b/drivers/net/sfc/base/siena_nvram.c
index 8cdd2df7..b8ea8a75 100644
--- a/drivers/net/sfc/base/siena_nvram.c
+++ b/drivers/net/sfc/base/siena_nvram.c
@@ -418,12 +418,11 @@ siena_nvram_get_subtype(
 	__out			uint32_t *subtypep)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_BOARD_CFG_IN_LEN,
-			    MC_CMD_GET_BOARD_CFG_OUT_LENMAX)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_BOARD_CFG_IN_LEN,
+		MC_CMD_GET_BOARD_CFG_OUT_LENMAX);
 	efx_word_t *fw_list;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_BOARD_CFG;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_BOARD_CFG_IN_LEN;
diff --git a/drivers/net/sfc/base/siena_phy.c b/drivers/net/sfc/base/siena_phy.c
index 4b2190d3..7eec9c74 100644
--- a/drivers/net/sfc/base/siena_phy.c
+++ b/drivers/net/sfc/base/siena_phy.c
@@ -169,11 +169,10 @@ siena_phy_get_link(
 	__out		siena_link_state_t *slsp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_LINK_IN_LEN,
-			    MC_CMD_GET_LINK_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_LINK_IN_LEN,
+		MC_CMD_GET_LINK_OUT_LEN);
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_LINK;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_LINK_IN_LEN;
@@ -244,10 +243,9 @@ siena_phy_reconfigure(
 {
 	efx_port_t *epp = &(enp->en_port);
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MAX(MC_CMD_SET_ID_LED_IN_LEN,
-				MC_CMD_SET_ID_LED_OUT_LEN),
-			    MAX(MC_CMD_SET_LINK_IN_LEN,
-				MC_CMD_SET_LINK_OUT_LEN))];
+	EFX_MCDI_DECLARE_BUF(payload,
+		MAX(MC_CMD_SET_ID_LED_IN_LEN, MC_CMD_SET_LINK_IN_LEN),
+		MAX(MC_CMD_SET_ID_LED_OUT_LEN, MC_CMD_SET_LINK_OUT_LEN));
 	uint32_t cap_mask;
 #if EFSYS_OPT_PHY_LED_CONTROL
 	unsigned int led_mode;
@@ -255,7 +253,6 @@ siena_phy_reconfigure(
 	unsigned int speed;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_SET_LINK;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_SET_LINK_IN_LEN;
@@ -361,12 +358,11 @@ siena_phy_verify(
 	__in		efx_nic_t *enp)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_GET_PHY_STATE_IN_LEN,
-			    MC_CMD_GET_PHY_STATE_OUT_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_PHY_STATE_IN_LEN,
+		MC_CMD_GET_PHY_STATE_OUT_LEN);
 	uint32_t state;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_GET_PHY_STATE;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_PHY_STATE_IN_LEN;
@@ -530,8 +526,8 @@ siena_phy_stats_update(
 	uint32_t vmask = encp->enc_mcdi_phy_stat_mask;
 	uint64_t smask;
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_PHY_STATS_IN_LEN,
-			    MC_CMD_PHY_STATS_OUT_DMA_LEN)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_PHY_STATS_IN_LEN,
+		MC_CMD_PHY_STATS_OUT_DMA_LEN);
 	efx_rc_t rc;
 
 	if ((esmp == NULL) || (EFSYS_MEM_SIZE(esmp) < EFX_PHY_STATS_SIZE)) {
@@ -539,7 +535,6 @@ siena_phy_stats_update(
 		goto fail1;
 	}
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_PHY_STATS;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_PHY_STATS_IN_LEN;
@@ -626,14 +621,13 @@ siena_phy_bist_poll(
 	__in			size_t count)
 {
 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
-	uint8_t payload[MAX(MC_CMD_POLL_BIST_IN_LEN,
-			    MCDI_CTL_SDU_LEN_MAX)];
+	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_POLL_BIST_IN_LEN,
+		MCDI_CTL_SDU_LEN_MAX);
 	uint32_t value_mask = 0;
 	efx_mcdi_req_t req;
 	uint32_t result;
 	efx_rc_t rc;
 
-	(void) memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_POLL_BIST;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_POLL_BIST_IN_LEN;