diff options
| author | Jiawen Wu <jiawenwu@trustnetic.com> | 2025-07-01 14:30:29 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-17 18:44:04 +0200 |
| commit | 88dc708f8c4aaf303051c90ac518db41cd5ce7d2 (patch) | |
| tree | fed23345909a4acad174b8e8a9f169577f4feebd /net/lapb/lapb_timer.c | |
| parent | 0b2724f3134a206bd089f8b53a0daba33b74d106 (diff) | |
net: wangxun: revert the adjustment of the IRQ vector sequence
commit e37546ad1f9b2c777d3a21d7e50ce265ee3dece8 upstream.
Due to hardware limitations of NGBE, queue IRQs can only be requested
on vector 0 to 7. When the number of queues is set to the maximum 8,
the PCI IRQ vectors are allocated from 0 to 8. The vector 0 is used by
MISC interrupt, and althrough the vector 8 is used by queue interrupt,
it is unable to receive packets. This will cause some packets to be
dropped when RSS is enabled and they are assigned to queue 8.
So revert the adjustment of the MISC IRQ location, to make it be the
last one in IRQ vectors.
Fixes: 937d46ecc5f9 ("net: wangxun: add ethtool_ops for channel number")
Cc: stable@vger.kernel.org
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Link: https://patch.msgid.link/20250701063030.59340-3-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions