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Index: head/sys/dev/sfxge/common/efx_mcdi.h
===================================================================
--- head/sys/dev/sfxge/common/efx_mcdi.h
+++ head/sys/dev/sfxge/common/efx_mcdi.h
@@ -69,6 +69,7 @@
typedef struct efx_mcdi_iface_s {
unsigned int emi_port;
+ unsigned int emi_max_version;
unsigned int emi_seq;
efx_mcdi_req_t *emi_pending_req;
boolean_t emi_ev_cpl;
Index: head/sys/dev/sfxge/common/efx_mcdi.c
===================================================================
--- head/sys/dev/sfxge/common/efx_mcdi.c
+++ head/sys/dev/sfxge/common/efx_mcdi.c
@@ -643,7 +643,6 @@
efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop;
- efx_nic_cfg_t *encp = &enp->en_nic_cfg;
efx_mcdi_req_t *emrp;
int state;
@@ -668,7 +667,7 @@
emip->emi_pending_req = NULL;
EFSYS_UNLOCK(enp->en_eslp, state);
- if (encp->enc_mcdi_max_payload_length > MCDI_CTL_SDU_LEN_MAX_V1) {
+ if (emip->emi_max_version >= 2) {
/* MCDIv2 response details do not fit into an event. */
efx_mcdi_read_response_header(enp, emrp);
} else {
Index: head/sys/dev/sfxge/common/hunt_mcdi.c
===================================================================
--- head/sys/dev/sfxge/common/hunt_mcdi.c
+++ head/sys/dev/sfxge/common/hunt_mcdi.c
@@ -81,6 +81,7 @@
__in efx_nic_t *enp,
__in const efx_mcdi_transport_t *emtp)
{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
efsys_mem_t *esmp = emtp->emt_dma_mem;
efx_dword_t dword;
efx_rc_t rc;
@@ -89,6 +90,13 @@
enp->en_family == EFX_FAMILY_MEDFORD);
EFSYS_ASSERT(enp->en_features & EFX_FEATURE_MCDI_DMA);
+ /*
+ * All EF10 firmware supports MCDIv2 and MCDIv1.
+ * Medford BootROM supports MCDIv2 and MCDIv1.
+ * Huntington BootROM supports MCDIv1 only.
+ */
+ emip->emi_max_version = 2;
+
/* A host DMA buffer is required for EF10 MCDI */
if (esmp == NULL) {
rc = EINVAL;
Index: head/sys/dev/sfxge/common/siena_mcdi.c
===================================================================
--- head/sys/dev/sfxge/common/siena_mcdi.c
+++ head/sys/dev/sfxge/common/siena_mcdi.c
@@ -244,6 +244,9 @@
goto fail1;
}
+ /* Siena BootROM and firmware only support MCDIv1 */
+ emip->emi_max_version = 1;
+
/*
* Wipe the atomic reboot status so subsequent MCDI requests succeed.
* BOOT_STATUS is preserved so eno_nic_probe() can boot out of the

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