On Mon, 2016-06-20 at 14:24 +0800, Wenzhuo Lu wrote: > If the PF link is down and up, VF link will not work accordingly. > This patch set addes the support of VF link reset. So, when VF > receices the messges of physical link down/up. APP can reset the > VF link and let it recover. > > PS: This patch set is splitted from a previous patch set, > *automatic link recovery on ixgbe/igb VF*, and it's base on the > patch set *support mailbox interruption on ixgbe/igb VF*. > > Wenzhuo Lu (3): > lib/librte_ether: support device reset > ixgbe: implement device reset on VF > igb: implement device reset on VF > > Zhe Tao (1): > i40e: implement device reset on VF > > v1: > - Added the implementation for the VF reset functionality. > v2: > - Changed the i40e related operations during VF reset. > v3: > - Resent the patches because of the mail sent issue. > v4: > - Removed some VF reset emulation code. > v5: > - Removed all the code related with lock. > v6: > - Updated the NIC feature overview matrix. > - Added more explanation in the doxygen comment of reset API. > > doc/guides/nics/overview.rst | 1 + > doc/guides/rel_notes/release_16_07.rst | 13 ++++++ > drivers/net/e1000/igb_ethdev.c | 59 ++++++++++++++++++++++++ > drivers/net/i40e/i40e_ethdev.h | 4 ++ > drivers/net/i40e/i40e_ethdev_vf.c | 83 > ++++++++++++++++++++++++++++++++++ > drivers/net/i40e/i40e_rxtx.c | 10 ++++ > drivers/net/i40e/i40e_rxtx.h | 4 ++ > drivers/net/ixgbe/ixgbe_ethdev.c | 64 +++++++++++++++++++++++++- > drivers/net/ixgbe/ixgbe_ethdev.h | 2 +- > drivers/net/ixgbe/ixgbe_rxtx.c | 12 +++-- > lib/librte_ether/rte_ethdev.c | 17 +++++++ > lib/librte_ether/rte_ethdev.h | 24 ++++++++++ > lib/librte_ether/rte_ether_version.map | 7 +++ > 13 files changed, 295 insertions(+), 5 deletions(-)
Hello Wenzhuo, I'm testing this patchset, but I am sporadically running into an issue where the VFs reset fails after the PF flaps. I have a VM running on a KVM box with a X540-AT2, passing 2 VFs in. I am using calling rte_eth_dev_reset in response to a RTE_ETH_EVENT_INTR_RESET callback, and the following errors appear in the log: PMD: ixgbevf_dev_reset(): Ixgbe VF reset: Failed to update link. PMD: ixgbe_alloc_rx_queue_mbufs(): RX mbuf alloc failed queue_id=0 PMD: ixgbevf_dev_start(): Unable to initialize RX hardware (-12) PMD: ixgbevf_dev_reset(): Ixgbe VF reset: Failed to start device. Jumping in with GDB, it seems that the rte_rxmbuf_alloc call in ixgbe_alloc_rx_queue_mbufs returns NULL at iteration 64 out of 2048. The application has ~500 2MB hugepages, and there's 2GB of free memory available on top of that. Have you seen this before? Any pointer or suggestion for debugging? Thanks! -- Kind regards, Luca Boccassi
