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| author | Yuval Avnery <yuvalav@mellanox.com> | 2018-10-16 15:20:20 -0500 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2018-11-19 14:35:04 -0800 |
| commit | a1f240f1801721f76bee734c50df2d9529da86e0 (patch) | |
| tree | 24bb4074bb910341047ee4a48df853d79e6a3f48 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | 83621b7df6a646e550fd3d36db2e301cf9a5096b (diff) | |
net/mlx5e: Adjust to max number of channles when re-attaching
When core driver enters deattach/attach flow after pci reset,
Number of logical CPUs may have changed.
As a result we need to update the cpu affiliated resource tables.
1. indirect rqt list
2. eq table
Reproduction (PowerPC):
echo 1000 > /sys/kernel/debug/powerpc/eeh_max_freezes
ppc64_cpu --smt=on
# Restart driver
modprobe -r ... ; modprobe ...
# Link up
ifconfig ...
# Only physical CPUs
ppc64_cpu --smt=off
# Inject PCI errors so PCI will reset - calling the pci error handler
echo 0x8000000000000000 > /sys/kernel/debug/powerpc/<PCI BUS>/err_injct_inboundA
Call trace when trying to add non-existing rqs to an indirect rqt:
mlx5e_redirect_rqt+0x84/0x260 [mlx5_core] (unreliable)
mlx5e_redirect_rqts+0x188/0x190 [mlx5_core]
mlx5e_activate_priv_channels+0x488/0x570 [mlx5_core]
mlx5e_open_locked+0xbc/0x140 [mlx5_core]
mlx5e_open+0x50/0x130 [mlx5_core]
mlx5e_nic_enable+0x174/0x1b0 [mlx5_core]
mlx5e_attach_netdev+0x154/0x290 [mlx5_core]
mlx5e_attach+0x88/0xd0 [mlx5_core]
mlx5_attach_device+0x168/0x1e0 [mlx5_core]
mlx5_load_one+0x1140/0x1210 [mlx5_core]
mlx5_pci_resume+0x6c/0xf0 [mlx5_core]
Create cq will fail when trying to use non-existing EQ.
Fixes: 89d44f0a6c73 ("net/mlx5_core: Add pci error handlers to mlx5_core driver")
Signed-off-by: Yuval Avnery <yuvalav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions