diff mbox series

[net-next,Patchv2,2/3] sch_htb: Allow HTB quantum parameter in offload mode

Message ID 20230713060111.14169-3-hkelam@marvell.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series support Round Robin scheduling | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1397 this patch: 1397
netdev/cc_maintainers warning 5 maintainers not CCed: saeedm@nvidia.com moshet@nvidia.com tariqt@nvidia.com leon@kernel.org linux-rdma@vger.kernel.org
netdev/build_clang success Errors and warnings before: 1366 this patch: 1366
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 1436 this patch: 1436
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 49 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Hariprasad Kelam July 13, 2023, 6:01 a.m. UTC 
From: Naveen Mamindlapalli <naveenm@marvell.com>

The current implementation of HTB offload returns the EINVAL error for
quantum parameter. This patch removes the error returning checks for
'quantum' parameter and populates its value to tc_htb_qopt_offload
structure such that driver can use the same.

Add quantum parameter check in mlx5 driver, as mlx5 devices are not capable
of supporting the quantum parameter when htb offload is used. Report error
if quantum parameter is set to a non-default value.

Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com>
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/qos.c | 4 ++--
 include/net/pkt_cls.h                            | 1 +
 net/sched/sch_htb.c                              | 7 +++----
 3 files changed, 6 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/qos.c b/drivers/net/ethernet/mellanox/mlx5/core/en/qos.c
index 1874c2f0587f..244bc15a42ab 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/qos.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/qos.c
@@ -379,9 +379,9 @@  int mlx5e_htb_setup_tc(struct mlx5e_priv *priv, struct tc_htb_qopt_offload *htb_
 	if (!htb && htb_qopt->command != TC_HTB_CREATE)
 		return -EINVAL;
 
-	if (htb_qopt->prio) {
+	if (htb_qopt->prio || htb_qopt->quantum) {
 		NL_SET_ERR_MSG_MOD(htb_qopt->extack,
-				   "prio parameter is not supported by device with HTB offload enabled.");
+				   "prio and quantum parameters are not supported by device with HTB offload enabled.");
 		return -EOPNOTSUPP;
 	}
 
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index a2ea45c7b53e..139cd09828af 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -866,6 +866,7 @@  struct tc_htb_qopt_offload {
 	u32 parent_classid;
 	u16 classid;
 	u16 qid;
+	u32 quantum;
 	u64 rate;
 	u64 ceil;
 	u8 prio;
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 325c29041c7d..333800a7d4eb 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -1810,10 +1810,6 @@  static int htb_change_class(struct Qdisc *sch, u32 classid,
 			NL_SET_ERR_MSG(extack, "HTB offload doesn't support the mpu parameter");
 			goto failure;
 		}
-		if (hopt->quantum) {
-			NL_SET_ERR_MSG(extack, "HTB offload doesn't support the quantum parameter");
-			goto failure;
-		}
 	}
 
 	/* Keeping backward compatible with rate_table based iproute2 tc */
@@ -1910,6 +1906,7 @@  static int htb_change_class(struct Qdisc *sch, u32 classid,
 				.rate = max_t(u64, hopt->rate.rate, rate64),
 				.ceil = max_t(u64, hopt->ceil.rate, ceil64),
 				.prio = hopt->prio,
+				.quantum = hopt->quantum,
 				.extack = extack,
 			};
 			err = htb_offload(dev, &offload_opt);
@@ -1931,6 +1928,7 @@  static int htb_change_class(struct Qdisc *sch, u32 classid,
 				.rate = max_t(u64, hopt->rate.rate, rate64),
 				.ceil = max_t(u64, hopt->ceil.rate, ceil64),
 				.prio = hopt->prio,
+				.quantum = hopt->quantum,
 				.extack = extack,
 			};
 			err = htb_offload(dev, &offload_opt);
@@ -2017,6 +2015,7 @@  static int htb_change_class(struct Qdisc *sch, u32 classid,
 				.rate = max_t(u64, hopt->rate.rate, rate64),
 				.ceil = max_t(u64, hopt->ceil.rate, ceil64),
 				.prio = hopt->prio,
+				.quantum = hopt->quantum,
 				.extack = extack,
 			};
 			err = htb_offload(dev, &offload_opt);