> > > + /* Tell HW to xmit */ > > > + __raw_writeq(cpu_to_be64(mapaddr), elem->hw_desc + C2_TXP_ADDR); > > > + __raw_writew(cpu_to_be16(maplen), elem->hw_desc + C2_TXP_LEN); > > > + __raw_writew(cpu_to_be16(TXP_HTXD_READY), elem->hw_desc + C2_TXP_FLAGS); > > > > or here > > > > No need here. This logic submits the packet for transmission. We don't > assume it is transmitted until we (after a completion interrupt usually) > read back the HTXD entry and see the TXP_HTXD_DONE bit set (see > c2_tx_interrupt()).
... but will that interrupt happen at all if these 3 writes never hit the hardware? _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
