diff mbox series

[v4,02/10] flow_offload: reject to offload tc actions in offload drivers

Message ID 20211118130805.23897-3-simon.horman@corigine.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series allow user to offload tc action to net device | expand

Checks

Context Check Description
bpf/vmtest-bpf-next pending VM_Test
bpf/vmtest-bpf-next-PR pending PR summary
bpf/vmtest-bpf pending VM_Test
bpf/vmtest-bpf-PR pending PR summary
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 9 maintainers not CCed: leon@kernel.org cmi@nvidia.com michael.chan@broadcom.com davem@davemloft.net kuba@kernel.org linux-rdma@vger.kernel.org yinjun.zhang@corigine.com lariel@nvidia.com saeedm@nvidia.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 26 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Simon Horman Nov. 18, 2021, 1:07 p.m. UTC 
From: Baowen Zheng <baowen.zheng@corigine.com>

A follow-up patch will allow users to offload tc actions independent of
classifier in the software datapath.

In preparation for this, teach all drivers that support offload of the flow
tables to reject such configuration as currently none of them support it.

Signed-off-by: Baowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c        | 2 +-
 drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c | 3 +++
 drivers/net/ethernet/netronome/nfp/flower/offload.c | 3 +++
 3 files changed, 7 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
index e6a4a768b10b..8c9bab932478 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
@@ -1962,7 +1962,7 @@  static int bnxt_tc_setup_indr_cb(struct net_device *netdev, struct Qdisc *sch, v
 				 void *data,
 				 void (*cleanup)(struct flow_block_cb *block_cb))
 {
-	if (!bnxt_is_netdev_indr_offload(netdev))
+	if (!netdev || !bnxt_is_netdev_indr_offload(netdev))
 		return -EOPNOTSUPP;
 
 	switch (type) {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
index fcb0892c08a9..0991345c4ae5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
@@ -517,6 +517,9 @@  int mlx5e_rep_indr_setup_cb(struct net_device *netdev, struct Qdisc *sch, void *
 			    void *data,
 			    void (*cleanup)(struct flow_block_cb *block_cb))
 {
+	if (!netdev)
+		return -EOPNOTSUPP;
+
 	switch (type) {
 	case TC_SETUP_BLOCK:
 		return mlx5e_rep_indr_setup_block(netdev, sch, cb_priv, type_data,
diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c
index 224089d04d98..f97eff5afd12 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/offload.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c
@@ -1867,6 +1867,9 @@  nfp_flower_indr_setup_tc_cb(struct net_device *netdev, struct Qdisc *sch, void *
 			    void *data,
 			    void (*cleanup)(struct flow_block_cb *block_cb))
 {
+	if (!netdev)
+		return -EOPNOTSUPP;
+
 	if (!nfp_fl_is_netdev_to_offload(netdev))
 		return -EOPNOTSUPP;