This patch-series implements doorbell drop recovery for Chelsio T4 iWARP driver.
In the event where DBs are dropped application can get stalled for one or more reasons. So, we recover RDMA and LLD queues in such an event. We also take care for handling DB overflow events. The patch-series also has some bug fixes, adds RDMA debugfs stats and removes kfifo usage for ID mangement. The patch-series is based on Roland's infiniband tree (for-next branch), and involves changes on drivers/net/ethernet/chelsio/cxgb4 and drivers/infiniband/hw/cxgb4. The changes on drivers/infiniband/hw/cxgb4 are dependent on the changes of drivers/net/ethernet/chelsio/cxgb4 for the T4-iWARP driver to build correctly. So, we request to merge the entire patch-series through Roland's tree. Both linux-rdma and netdev are included in this post for review. The earlier posting of this series was reviewed and can be found at below link. http://www.mail-archive.com/[email protected]/msg09606.html Below is a link where Roland advised to re-post the series. http://www.spinics.net/lists/netdev/msg187997.html Vipul Pandya (10): cxgb4: Detect DB FULL events and notify RDMA ULD. cxgb4: Common platform specific changes for DB Drop Recovery cxgb4: DB Drop Recovery for RDMA and LLD queues. RDMA/cxgb4: Add debugfs rdma memory stats RDMA/cxgb4: Add DB Overflow Avoidance. RDMA/cxgb4: disable interrupts in c4iw_ev_dispatch(). RDMA/cxgb4: DB Drop Recovery for RDMA and LLD queues. RDMA/cxgb4: Use vmalloc for debugfs qp dump. Allows dumping thousands of qps. RDMA/cxgb4: remove kfifo usage RDMA/cxgb4: Add query_qp support in driver to query the qp state before flushing. drivers/infiniband/hw/cxgb4/Makefile | 2 +- drivers/infiniband/hw/cxgb4/cm.c | 23 ++- drivers/infiniband/hw/cxgb4/device.c | 339 ++++++++++++++++++++++- drivers/infiniband/hw/cxgb4/ev.c | 8 +- drivers/infiniband/hw/cxgb4/id_table.c | 112 ++++++++ drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 134 ++++++++-- drivers/infiniband/hw/cxgb4/mem.c | 21 +- drivers/infiniband/hw/cxgb4/provider.c | 19 +- drivers/infiniband/hw/cxgb4/qp.c | 105 +++++++- drivers/infiniband/hw/cxgb4/resource.c | 180 +++++------- drivers/infiniband/hw/cxgb4/t4.h | 24 ++ drivers/infiniband/hw/cxgb4/user.h | 2 +- drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 23 ++ drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 235 +++++++++++++++- drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h | 11 + drivers/net/ethernet/chelsio/cxgb4/sge.c | 22 ++- drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 62 ++++- drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 53 ++++ drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h | 15 + 19 files changed, 1218 insertions(+), 172 deletions(-) create mode 100644 drivers/infiniband/hw/cxgb4/id_table.c -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
