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| author |   Alex Elder <elder@linaro.org> | 2020-03-05 22:28:21 -0600 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-03-08 22:07:09 -0700 |
| commit | 650d1603825d8bac13557d1c0e971e9f93b386f3 (patch) | |
| tree | 4de0f92876c081b84d157af09dff8dd768529161 /drivers/net/ethernet/intel/ice/ice_ethtool.c | |
| parent | soc: qcom: ipa: GSI headers (diff) | |
| download | wireguard-linux-650d1603825d8bac13557d1c0e971e9f93b386f3.tar.xz wireguard-linux-650d1603825d8bac13557d1c0e971e9f93b386f3.zip | |
soc: qcom: ipa: the generic software interface
This patch includes "gsi.c", which implements the generic software
interface (GSI) for IPA. The generic software interface abstracts
channels, which provide a means of transferring data either from the
AP to the IPA, or from the IPA to the AP. A ring buffer of "transfer
elements" (TREs) is used to describe data transfers to perform. The
AP writes a doorbell register associated with a channel to let it know
it has added new entries (for an AP->IPA channel) or has finished
processing entries (for an IPA->AP channel).
Each channel also has an event ring buffer, used by the IPA to
communicate information about events related to a channel (for
example, the completion of TREs). The IPA writes its own doorbell
register, which triggers an interrupt on the AP, to signal that
new event information has arrived.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_ethtool.c')
0 files changed, 0 insertions, 0 deletions