diff mbox series

[net-next] octeontx2-pf: Allow both ntuple and TC features on the interface

Message ID 20230810171119.23600-1-hkelam@marvell.com (mailing list archive)
State Accepted
Commit 61f98da4698407d042128396297d7f724cfa1424
Delegated to: Netdev Maintainers
Headers show
Series [net-next] octeontx2-pf: Allow both ntuple and TC features on the interface | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/apply success Patch already applied to net-next

Commit Message

Hariprasad Kelam Aug. 10, 2023, 5:11 p.m. UTC 
The current implementation does not allow the user to enable both
hw-tc-offload and ntuple features on the interface. These checks
are added as TC flower offload and ntuple features internally configures
the same hardware resource MCAM. But TC HTB offload configures the
transmit scheduler which can be safely enabled on the interface with
ntuple feature.

This patch adds the same and ensures only TC flower offload and ntuple
features are mutually exclusive.

Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
---
 .../marvell/octeontx2/nic/otx2_common.c       | 21 +++----------------
 .../marvell/octeontx2/nic/otx2_common.h       |  9 ++++++++
 2 files changed, 12 insertions(+), 18 deletions(-)

Comments

patchwork-bot+netdevbpf@kernel.org Aug. 11, 2023, 11 a.m. UTC | #1 
Hello:

This patch was applied to netdev/net-next.git (main)
by David S. Miller <davem@davemloft.net>:

On Thu, 10 Aug 2023 22:41:19 +0530 you wrote:
> The current implementation does not allow the user to enable both
> hw-tc-offload and ntuple features on the interface. These checks
> are added as TC flower offload and ntuple features internally configures
> the same hardware resource MCAM. But TC HTB offload configures the
> transmit scheduler which can be safely enabled on the interface with
> ntuple feature.
> 
> [...]

Here is the summary with links:
  - [net-next] octeontx2-pf: Allow both ntuple and TC features on the interface
    https://git.kernel.org/netdev/net-next/c/61f98da46984

You are awesome, thank you!
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
index 8336cea16aff..dce3cea00032 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
@@ -1905,31 +1905,16 @@  int otx2_handle_ntuple_tc_features(struct net_device *netdev, netdev_features_t
 		}
 	}
 
-	if ((changed & NETIF_F_HW_TC) && tc) {
-		if (!pfvf->flow_cfg->max_flows) {
-			netdev_err(netdev,
-				   "Can't enable TC, MCAM entries not allocated\n");
-			return -EINVAL;
-		}
-	}
-
 	if ((changed & NETIF_F_HW_TC) && !tc &&
-	    pfvf->flow_cfg && pfvf->flow_cfg->nr_flows) {
+	    otx2_tc_flower_rule_cnt(pfvf)) {
 		netdev_err(netdev, "Can't disable TC hardware offload while flows are active\n");
 		return -EBUSY;
 	}
 
 	if ((changed & NETIF_F_NTUPLE) && ntuple &&
-	    (netdev->features & NETIF_F_HW_TC) && !(changed & NETIF_F_HW_TC)) {
-		netdev_err(netdev,
-			   "Can't enable NTUPLE when TC is active, disable TC and retry\n");
-		return -EINVAL;
-	}
-
-	if ((changed & NETIF_F_HW_TC) && tc &&
-	    (netdev->features & NETIF_F_NTUPLE) && !(changed & NETIF_F_NTUPLE)) {
+	    otx2_tc_flower_rule_cnt(pfvf) && !(changed & NETIF_F_HW_TC)) {
 		netdev_err(netdev,
-			   "Can't enable TC when NTUPLE is active, disable NTUPLE and retry\n");
+			   "Can't enable NTUPLE when TC flower offload is active, disable TC rules and retry\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
index 25e99fd2e3fd..5fd05d94de7c 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
@@ -940,6 +940,15 @@  static inline u64 otx2_convert_rate(u64 rate)
 	return converted_rate;
 }
 
+static inline int otx2_tc_flower_rule_cnt(struct otx2_nic *pfvf)
+{
+	/* return here if MCAM entries not allocated */
+	if (!pfvf->flow_cfg)
+		return 0;
+
+	return pfvf->flow_cfg->nr_flows;
+}
+
 /* MSI-X APIs */
 void otx2_free_cints(struct otx2_nic *pfvf, int n);
 void otx2_set_cints_affinity(struct otx2_nic *pfvf);