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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:36 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:36 +0000 |
commit | 50ba0232fd5312410f1b65247e774244f89a628e (patch) | |
tree | fd8f2fc78e9e548af0ff9590276602ee6125be00 /Documentation/accel/qaic/aic100.rst | |
parent | Releasing progress-linux version 6.7.12-1~progress7.99u1. (diff) | |
download | linux-50ba0232fd5312410f1b65247e774244f89a628e.tar.xz linux-50ba0232fd5312410f1b65247e774244f89a628e.zip |
Merging upstream version 6.8.9.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/accel/qaic/aic100.rst')
-rw-r--r-- | Documentation/accel/qaic/aic100.rst | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/Documentation/accel/qaic/aic100.rst b/Documentation/accel/qaic/aic100.rst index c80d0f1307..590dae77ea 100644 --- a/Documentation/accel/qaic/aic100.rst +++ b/Documentation/accel/qaic/aic100.rst @@ -36,8 +36,9 @@ AIC100 DID (0xa100). AIC100 does not implement FLR (function level reset). -AIC100 implements MSI but does not implement MSI-X. AIC100 requires 17 MSIs to -operate (1 for MHI, 16 for the DMA Bridge). +AIC100 implements MSI but does not implement MSI-X. AIC100 prefers 17 MSIs to +operate (1 for MHI, 16 for the DMA Bridge). Falling back to 1 MSI is possible in +scenarios where reserving 32 MSIs isn't feasible. As a PCIe device, AIC100 utilizes BARs to provide host interfaces to the device hardware. AIC100 provides 3, 64-bit BARs. @@ -220,10 +221,14 @@ of the defined channels, and their uses. +----------------+---------+----------+----------------------------------------+ | QAIC_DEBUG | 18 & 19 | AMSS | Not used. | +----------------+---------+----------+----------------------------------------+ -| QAIC_TIMESYNC | 20 & 21 | SBL/AMSS | Used to synchronize timestamps in the | +| QAIC_TIMESYNC | 20 & 21 | SBL | Used to synchronize timestamps in the | | | | | device side logs with the host time | | | | | source. | +----------------+---------+----------+----------------------------------------+ +| QAIC_TIMESYNC | 22 & 23 | AMSS | Used to periodically synchronize | +| _PERIODIC | | | timestamps in the device side logs with| +| | | | the host time source. | ++----------------+---------+----------+----------------------------------------+ DMA Bridge ========== |