diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2021-08-19 09:34:06 -0700 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-08-29 19:14:20 +0530 |
| commit | d8071323c5632bdf0a8ef9b9e5662fac43649f9d (patch) | |
| tree | 4184d8f8eda5c2830302812456daf79d3ba233ba /include/uapi/linux/idxd.h | |
| parent | aac6c0f90799d66b8989be1e056408f33fd99fe6 (diff) | |
dmaengine: idxd: fix setting up priv mode for dwq
DSA spec says WQ priv bit is 0 if the Privileged Mode Enable field of the
PCI Express PASID capability is 0 and pasid is enabled. Make sure that the
WQCFG priv field is set correctly according to usage type. Reject config if
setting up kernel WQ type and no support. Also add the correct priv setup
for a descriptor.
Fixes: 484f910e93b4 ("dmaengine: idxd: fix wq config registers offset programming")
Cc: Ramesh Thomas <ramesh.thomas@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162939084657.903168.14160019185148244596.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'include/uapi/linux/idxd.h')
| -rw-r--r-- | include/uapi/linux/idxd.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/idxd.h b/include/uapi/linux/idxd.h index ca24c25252fb..c750eac09fc9 100644 --- a/include/uapi/linux/idxd.h +++ b/include/uapi/linux/idxd.h @@ -27,6 +27,7 @@ enum idxd_scmd_stat { IDXD_SCMD_WQ_NO_SWQ_SUPPORT = 0x800c0000, IDXD_SCMD_WQ_NONE_CONFIGURED = 0x800d0000, IDXD_SCMD_WQ_NO_SIZE = 0x800e0000, + IDXD_SCMD_WQ_NO_PRIV = 0x800f0000, }; #define IDXD_SCMD_SOFTERR_MASK 0x80000000 |