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author | David S. Miller <davem@davemloft.net> | 2019-11-20 12:05:24 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2019-11-20 12:05:24 -0800 |
commit | 07def463829cc8f3def7ecbe45cb409992d3d33c (patch) | |
tree | 213d48d7dc4fe408556bc9b688795defb343ed66 /drivers/nfc/nfcmrvl | |
parent | 77c05d2f73066e205f786c407964b97d11abb7f4 (diff) | |
parent | 21c4c60b7696346c48ed11478f4bffec6d1b2dcb (diff) | |
download | linux-07def463829cc8f3def7ecbe45cb409992d3d33c.tar.bz2 |
Merge branch 'cxgb4-add-TC-MATCHALL-classifier-offload'
Rahul Lakkireddy says:
====================
cxgb4: add TC-MATCHALL classifier offload
This series of patches add support to offload TC-MATCHALL classifier
to hardware to classify all outgoing and incoming traffic on the
underlying port. Only 1 egress and 1 ingress rule each can be
offloaded on the underlying port.
Patch 1 adds support for TC-MATCHALL classifier offload on the egress
side. TC-POLICE is the only action that can be offloaded on the egress
side and is used to rate limit all outgoing traffic to specified max
rate.
Patch 2 adds logic to reject the current rule offload if its priority
conflicts with existing rules in the TCAM.
Patch 3 adds support for TC-MATCHALL classifier offload on the ingress
side. The same set of actions supported by existing TC-FLOWER
classifier offload can be applied on all the incoming traffic.
v5:
- Fixed commit message and comment to include comparison for equal
priority in patch 2.
v4:
- Removed check in patch 1 to reject police offload if prio is not 1.
- Moved TC_SETUP_BLOCK code to separate function in patch 1.
- Added logic to ensure the prio passed by TC doesn't conflict with
other rules in TCAM in patch 2.
- Higher index has lower priority than lower index in TCAM. So, rework
cxgb4_get_free_ftid() to search free index from end of TCAM in
descending order in patch 2.
- Added check to ensure the matchall rule's prio doesn't conflict with
other rules in TCAM in patch 3.
- Added logic to fill default mask for VIID, if none has been
provided, to prevent conflict with duplicate VIID rules in patch 3.
- Used existing variables in private structure to fill VIID info,
instead of extracting the info manually in patch 3.
v3:
- Added check in patch 1 to reject police offload if prio is not 1.
- Assign block_shared variable only for TC_SETUP_BLOCK in patch 1.
v2:
- Added check to reject flow block sharing for policers in patch 1.
- Removed logic to fetch free index from end of TCAM in patch 2.
Must maintain the same ordering as in kernel.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/nfc/nfcmrvl')
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