Konstantin, Is there a possibility to read information about available space in NIC queue for TX.
It is quite easy to compute (or even available directly) and very useful especially for application sending multi-descriptor packets like TCP TSO. Now there is no access to such information and the transmit packet function must be called to be sure that there is available space. Mirek > -----Original Message----- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Konstantin Ananyev > Sent: Thursday, June 18, 2015 3:19 PM > To: dev at dpdk.org > Subject: [dpdk-dev] [PATCHv2 0/5] ethdev: add new API to retrieve RX/TX > queue information > > Add the ability for the upper layer to query RX/TX queue information. > Right now supported for: > ixgbe, i40e, e1000 PMDs. > > Konstantin Ananyev (5): > ethdev: add new API to retrieve RX/TX queue information > i40e: add support for eth_(rxq|txq)_info_get > ixgbe: add support for eth_(rxq|txq)_info_get > e1000: add support for eth_(rxq|txq)_info_get > testpmd: add new command to display RX/TX queue information > > app/test-pmd/cmdline.c | 48 +++++++++++++++++++++++++ > app/test-pmd/config.c | 67 > ++++++++++++++++++++++++++++++++++ > app/test-pmd/testpmd.h | 2 ++ > drivers/net/e1000/e1000_ethdev.h | 12 +++++++ > drivers/net/e1000/em_ethdev.c | 2 ++ > drivers/net/e1000/em_rxtx.c | 38 ++++++++++++++++++++ > drivers/net/e1000/igb_ethdev.c | 4 +++ > drivers/net/e1000/igb_rxtx.c | 36 +++++++++++++++++++ > drivers/net/i40e/i40e_ethdev.c | 2 ++ > drivers/net/i40e/i40e_ethdev.h | 5 +++ > drivers/net/i40e/i40e_rxtx.c | 42 ++++++++++++++++++++++ > drivers/net/ixgbe/ixgbe_ethdev.c | 4 +++ > drivers/net/ixgbe/ixgbe_ethdev.h | 6 ++++ > drivers/net/ixgbe/ixgbe_rxtx.c | 42 ++++++++++++++++++++++ > lib/librte_ether/rte_ethdev.c | 54 ++++++++++++++++++++++++++++ > lib/librte_ether/rte_ethdev.h | 77 > +++++++++++++++++++++++++++++++++++++++- > 16 files changed, 440 insertions(+), 1 deletion(-) > > -- > 1.8.5.3
