[dpdk-dev] [PATCH v3 00/13] eal: replace calls to rte_panic and refrain from new instances
Arnon Warshavsky
arnon at qwilt.com
Fri Apr 13 20:30:31 CEST 2018
The purpose of this patch series is to cleanup the library code
from paths that end up aborting the process,
and move to checking error values, in order to allow the running process
perform an orderly teardown or other mitigation of the event.
This patch modifies the majority of rte_panic calls
under lib and drivers, and replaces them with a log message
and an error return code according to context,
that can be propagated up the call stack.
- Focus was given to the dpdk initialization path
- Some of the panic calls within drivers were left in place where
the call is from within an interrupt or calls that are
on the data path,where there is no simple applicative
route to propagate the error to temination.
These should be handled by the driver maintainers.
- In order to avoid breaking ABI where panic was called from public
void functions, a panic state variable was introduced so that
it can be queried after calling these void functions.
This tool place for a single function call.
- local void functions with no api were changed to retrun a value
where needed
- No change took place in example and test files
- No change took place for debug assertions calling panic
- A new function was added to devtools/checkpatches.sh
in order to prevent new additions of calls to rte_panic
under lib and drivers.
Keep calm and don't panic
---
v2:
- reformat error messages so that literal string are in the same line
- fix typo in commit message
- add new return code to doxigen of rte_memzone_free()
v3:
- submit all 13 patches changed and unchanged in the same patchset
Arnon Warshavsky (13):
crypto: replace rte_panic instances in crypto driver
bond: replace rte_panic instances in bonding driver
e1000: replace rte_panic instances in e1000 driver
ixgbe: replace rte_panic instances in ixgbe driver
eal: replace rte_panic instances in eventdev
kni: replace rte_panic instances in kni
e1000: replace rte_panic instances in e1000 driver
eal: replace rte_panic instances in hugepage_info
eal: replace rte_panic instances in common_memzone
eal: replace rte_panic instances in interrupts thread
eal: replace rte_panic instances in ethdev
eal: replace rte_panic instances in init sequence
devtools: prevent new instances of rte_panic and rte_exit
devtools/checkpatches.sh | 94 ++++++++++++++++-
drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c | 8 +-
drivers/crypto/dpaa_sec/dpaa_sec.c | 8 +-
drivers/net/bonding/rte_eth_bond_8023ad.c | 30 ++++--
drivers/net/bonding/rte_eth_bond_8023ad_private.h | 2 +-
drivers/net/bonding/rte_eth_bond_api.c | 20 ++--
drivers/net/bonding/rte_eth_bond_pmd.c | 10 +-
drivers/net/bonding/rte_eth_bond_private.h | 2 +-
drivers/net/e1000/e1000_ethdev.h | 2 +-
drivers/net/e1000/igb_ethdev.c | 3 +-
drivers/net/e1000/igb_pf.c | 15 +--
drivers/net/ixgbe/ixgbe_ethdev.c | 3 +-
drivers/net/ixgbe/ixgbe_ethdev.h | 2 +-
drivers/net/ixgbe/ixgbe_pf.c | 13 ++-
lib/librte_eal/bsdapp/eal/eal.c | 87 +++++++++++-----
lib/librte_eal/bsdapp/eal/eal_thread.c | 65 +++++++++---
lib/librte_eal/common/eal_common_launch.c | 21 ++++
lib/librte_eal/common/eal_common_memzone.c | 3 +-
lib/librte_eal/common/include/rte_debug.h | 12 +++
lib/librte_eal/common/include/rte_memzone.h | 1 +
lib/librte_eal/common/rte_malloc.c | 7 +-
lib/librte_eal/linuxapp/eal/eal.c | 121 +++++++++++++++-------
lib/librte_eal/linuxapp/eal/eal_hugepage_info.c | 21 ++--
lib/librte_eal/linuxapp/eal/eal_interrupts.c | 27 +++--
lib/librte_eal/linuxapp/eal/eal_thread.c | 65 +++++++++---
lib/librte_ether/rte_ethdev.c | 36 +++++--
lib/librte_eventdev/rte_eventdev_pmd_pci.h | 8 +-
lib/librte_eventdev/rte_eventdev_pmd_vdev.h | 8 +-
lib/librte_kni/rte_kni.c | 18 ++--
lib/librte_kni/rte_kni_fifo.h | 11 +-
30 files changed, 540 insertions(+), 183 deletions(-)
--
1.8.3.1
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