Increase iwx(4) firmware command queue size.
Otherwise, the firmware will eventually send spurious "command done"
notifications for commands which were completed successfully earlier
(which looks like a ring overflow) and then crash with a fatal error.
This is required to get -48 firmware to work without fatal firmware errors.
ok?
diff 593cf89bed2f9f27ccf55d4cebf8aa65c36c7bb1
047e3a7211742260b7a9097053380f87b72b3eae
blob - d6c823fe64ce7509e69c5b4ec20fdfa8681cfb2d
blob + 7781f264940a4444644deff624a05a3b9ce2b65d
--- sys/dev/pci/if_iwxreg.h
+++ sys/dev/pci/if_iwxreg.h
@@ -1402,7 +1402,7 @@ enum iwx_gen2_tx_fifo {
#define IWX_TX_QUEUE_CFG_TFD_SHORT_FORMAT (1 << 1)
#define IWX_DEFAULT_QUEUE_SIZE IWX_TFD_QUEUE_SIZE_MAX
-#define IWX_CMD_QUEUE_SIZE 32
+#define IWX_CMD_QUEUE_SIZE 64
/**
* struct iwx_tx_queue_cfg_cmd - txq hw scheduler config command
