#define KQSW_TX_MAXCONTIG (1<<10) /* largest payload that gets made contiguous on transmit */
#define KQSW_NTXMSGS 8 /* # normal transmit messages */
-#define KQSW_NNBLK_TXMSGS 128 /* # reserved transmit messages if can't block */
+#define KQSW_NNBLK_TXMSGS 256 /* # reserved transmit messages if can't block */
#define KQSW_NRXMSGS_LARGE 64 /* # large receive buffers */
#define KQSW_EP_ENVELOPES_LARGE 128 /* # large ep envelopes */