linux_dsm_epyc7002/drivers/net/ethernet/chelsio
Rahul Lakkireddy 4ec4762d8e cxgb4: add TC-MATCHALL classifier egress offload
Add TC-MATCHALL classifier offload with TC-POLICE action applied for
all outgoing traffic on the underlying interface. Split flow block
offload to support both egress and ingress classification.

For example, to rate limit all outgoing traffic to 1 Gbps:

$ tc qdisc add dev enp2s0f4 clsact
$ tc filter add dev enp2s0f4 egress matchall skip_sw \
	action police rate 1Gbit burst 8Kbit

Note that skip_sw is important. Otherwise, both stack and hardware
will end up doing policing. Policing can't be shared across flow
blocks. Only 1 egress matchall rule can be active at a time on the
underlying interface.

v5:
- No change.

v4:
- Removed check to reject police offload if prio is not 1.
- Moved TC_SETUP_BLOCK code to separate function.

v3:
- Added check to reject police offload if prio is not 1.
- Assign block_shared variable only for TC_SETUP_BLOCK.

v2:
- Added check to reject flow block sharing for policers.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 12:05:23 -08:00
..
cxgb chelsio: Fix a typo in a function name 2019-07-21 11:48:25 -07:00
cxgb3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-08-06 18:44:57 -07:00
cxgb4 cxgb4: add TC-MATCHALL classifier egress offload 2019-11-20 12:05:23 -08:00
cxgb4vf cxgb4: no need to check return value of debugfs_create functions 2019-08-10 15:25:48 -07:00
libcxgb cxgb4/libcxgb/cxgb4i/cxgbit: enable eDRAM page pods for iSCSI 2019-06-10 09:20:23 -07:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00