diff options
author | Rick Farrington <ricardo.farrington@cavium.com> | 2018-07-13 12:50:21 -0700 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-26 08:38:10 +0200 |
commit | 7ec40f0ab2582b91f1e943544e06e80f016871d2 (patch) | |
tree | 148dc7ac181f5dadae3b73c9196478cda2f5b92b /drivers/gpu | |
parent | 6c4abbeb250948f916dce05e972861b263531008 (diff) |
liquidio: fix hang when re-binding VF host drv after running DPDK VF driver
[ Upstream commit ac13d6d8eaded15c67265eafc32f439ea3a0ac4a ]
When configuring SLI_PKTn_OUTPUT_CONTROL, VF driver was assuming that IPTR
mode was disabled by reset, which was not true. Since DPDK driver had
set IPTR mode previously, the VF driver (which uses buf-ptr-only mode) was
not properly handling DROQ packets (i.e. it saw zero-length packets).
This represented an invalid hardware configuration which the driver could
not handle.
Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
0 files changed, 0 insertions, 0 deletions