Alex on 82599 the DROP bit seems to work instead. is there a work-around for 82598 too?
Regards Luca On May 27, 2011, at 11:48 PM, Luca Deri wrote: > Hi Alex, > I have tested your suggestion but unfortunately it does not seem to work. I > have verified that the value in the IXGBE_SRRCTL register is set to 12000802 > thus the drop bit should be set. Basically sending packets to the card (RSS > balanced across RX queues), if I don't consume/read packets on all remaining > queues (via ixgbe_clean_rx_irq), even on the queue where I am reading > packets, the descriptors are not notifying new packets. I am using a > 82598-based card. > > is there anything else you suggest me to try? > > Regards Luca > > > > On May 25, 2011, at 10:08 PM, Alexander Duyck wrote: > >> On 05/25/2011 06:32 PM, Luca Deri wrote: >>> Dear all >>> I am modifying the ixgbe driver for improving packet capture performance. I >>> have noticed that in case of multiple-queue, when one RX queue is full, the >>> card stops receiving packets for all the other queues, even if they have >>> room for packets. >>> >>> Is there a way I can tell the card to keep receiving packets for queue that >>> have room for new packets (i.e. How can I tell the card to have independent >>> queues)? >>> >>> Thanks in advance, Luca >>> >> I would recommend looking into the SRRCTL register and the DROP_EN bit. By >> setting the DROP_EN bit in the SRRCTL register the RX FIFO will drop packets >> for stopped queues instead of back-filling the RX FIFO. This should allow >> the queues to function independently without any head of line blocking. >> >> Thanks, >> >> Alex > > --- > We can't solve problems by using the same kind of thinking we used when we > created them - Albert Einstein > --- Bildung ist kein Verbrechen ------------------------------------------------------------------------------ vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
