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diff --git a/sys/dev/iwm/if_iwm.c b/sys/dev/iwm/if_iwm.c
--- a/sys/dev/iwm/if_iwm.c
+++ b/sys/dev/iwm/if_iwm.c
@@ -4687,6 +4687,46 @@
&bt_cmd);
}
+static int
+iwm_send_soc_conf(struct iwm_softc *sc)
+{
+ struct iwm_soc_configuration_cmd cmd;
+ int err;
+ uint32_t cmd_id, flags = 0;
+
+ memset(&cmd, 0, sizeof(cmd));
+
+ /*
+ * In VER_1 of this command, the discrete value is considered
+ * an integer; In VER_2, it's a bitmask. Since we have only 2
+ * values in VER_1, this is backwards-compatible with VER_2,
+ * as long as we don't set any other flag bits.
+ */
+ if (!sc->cfg->integrated) { /* VER_1 */
+ flags = IWM_SOC_CONFIG_CMD_FLAGS_DISCRETE;
+ } else { /* VER_2 */
+ uint8_t scan_cmd_ver;
+ if (sc->cfg->ltr_delay != IWM_SOC_FLAGS_LTR_APPLY_DELAY_NONE)
+ flags |= (sc->cfg->ltr_delay &
+ IWM_SOC_FLAGS_LTR_APPLY_DELAY_MASK);
+ scan_cmd_ver = iwm_lookup_cmd_ver(sc, IWM_LONG_GROUP,
+ IWM_SCAN_REQ_UMAC);
+ if (scan_cmd_ver != IWM_FW_CMD_VER_UNKNOWN &&
+ scan_cmd_ver >= 2 && sc->cfg->low_latency_xtal)
+ flags |= IWM_SOC_CONFIG_CMD_FLAGS_LOW_LATENCY;
+ }
+ cmd.flags = htole32(flags);
+
+ cmd.latency = htole32(sc->cfg->xtal_latency);
+
+ cmd_id = iwm_cmd_id(IWM_SOC_CONFIGURATION_CMD, IWM_SYSTEM_GROUP, 0);
+ err = iwm_send_cmd_pdu(sc, cmd_id, 0, sizeof(cmd), &cmd);
+ if (err)
+ device_printf(sc->sc_dev, "failed to set soc latency: %d\n",
+ err);
+ return err;
+}
+
static boolean_t
iwm_is_lar_supported(struct iwm_softc *sc)
{
@@ -4845,6 +4885,11 @@
goto error;
}
+ if (iwm_fw_has_capa(sc, IWM_UCODE_TLV_CAPA_SOC_LATENCY_SUPPORT)) {
+ if ((error = iwm_send_soc_conf(sc)) != 0)
+ goto error;
+ }
+
error = iwm_send_tx_ant_cfg(sc, iwm_get_valid_tx_ant(sc));
if (error != 0) {
device_printf(sc->sc_dev, "antenna config failed\n");
diff --git a/sys/dev/iwm/if_iwm_9000.c b/sys/dev/iwm/if_iwm_9000.c
--- a/sys/dev/iwm/if_iwm_9000.c
+++ b/sys/dev/iwm/if_iwm_9000.c
@@ -92,4 +92,5 @@
.host_interrupt_operation_mode = 0,
.mqrx_supported = 1,
.integrated = 1,
+ .xtal_latency = 650,
};
diff --git a/sys/dev/iwm/if_iwm_config.h b/sys/dev/iwm/if_iwm_config.h
--- a/sys/dev/iwm/if_iwm_config.h
+++ b/sys/dev/iwm/if_iwm_config.h
@@ -139,6 +139,9 @@
uint8_t nvm_hw_section_num;
int apmg_wake_up_wa;
enum iwm_nvm_type nvm_type;
+ int xtal_latency;
+ int ltr_delay;
+ int low_latency_xtal;
};
/*

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