Hi! The first 10 patches of this series prepare nfpcore for concurrent accesses. This will be needed by upcoming hwmon and devlink patches. Most locking is already in place, the patches in this series iron out a few bugs.
Last 5 patches are fixes and cleanups to the netdev code, including removal of doorbell pointers used only on old versions of the chip, removal of unnecessarily defensive code and flushing xmit_more more carefully on error paths. Jakub Kicinski (15): nfp: disallow sharing mutexes on the same machine nfp: fail graciously when someone tries to grab global lock nfp: remove cpp mutex cache nfp: move mutex code out of nfp_cppcore.c nfp: document expected locking in the core nfp: lock area cache earlier nfp: correct return codes when msleep gets interrupted nfp: don't ignore return value of wait_event_interruptible nfp: fix invalid area detection nfp: fix nfp_cpp_read()/nfp_cpp_write() error paths nfp: don't use netdev_warn() before netdev is registered nfp: remove RX queue pointers nfp: flush xmit_more on error paths nfp: remove defensive checks around ndo_open()/ndo_close() nfp: disable FW on reconfiguration errors drivers/net/ethernet/netronome/nfp/Makefile | 1 + drivers/net/ethernet/netronome/nfp/nfp_net.h | 8 +- .../net/ethernet/netronome/nfp/nfp_net_common.c | 50 +-- .../net/ethernet/netronome/nfp/nfp_net_debugfs.c | 15 +- drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h | 9 +- .../ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c | 29 +- .../ethernet/netronome/nfp/nfpcore/nfp_cppcore.c | 467 ++++----------------- .../net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c | 345 +++++++++++++++ .../net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c | 12 +- .../ethernet/netronome/nfp/nfpcore/nfp_resource.c | 15 +- 10 files changed, 484 insertions(+), 467 deletions(-) create mode 100644 drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c -- 2.11.0
