2024-01-05 12:03:11

by Geethasowjanya Akula

Subject: [net-next PATCH] octeontx2-pf: Add support for offload tc with skbedit mark action

Support offloading of skbedit mark action.

For example, to mark with 0x0008, with dest ip 60.60.60.2 on eth2
interface:

# tc qdisc add dev eth2 ingress
# tc filter add dev eth2 ingress protocol ip flower \
dst_ip 60.60.60.2 action skbedit mark 0x0008 skip_sw

Signed-off-by: Geetha sowjanya <[email protected]>
---
.../net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c | 2 ++
.../ethernet/marvell/octeontx2/nic/otx2_common.h | 2 ++
.../net/ethernet/marvell/octeontx2/nic/otx2_tc.c | 13 +++++++++++++
.../net/ethernet/marvell/octeontx2/nic/otx2_txrx.c | 3 +++
.../net/ethernet/marvell/octeontx2/nic/otx2_txrx.h | 3 +++
5 files changed, 23 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c
index c75669c8fde7..6188921e9a20 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c
@@ -1183,6 +1183,8 @@ static int npc_update_rx_entry(struct rvu *rvu, struct rvu_pfvf *pfvf,
action.pf_func = target;
action.op = NIX_RX_ACTIONOP_UCAST;
}
+ if (req->match_id)
+ action.match_id = req->match_id;
}

entry->action = *(u64 *)&action;
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
index 06910307085e..815ae13c371c 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
@@ -363,6 +363,7 @@ struct otx2_flow_config {
struct list_head flow_list;
u32 dmacflt_max_flows;
u16 max_flows;
+ u16 mark_flows;
struct list_head flow_list_tc;
bool ntuple;
};
@@ -465,6 +466,7 @@ struct otx2_nic {
#define OTX2_FLAG_DMACFLTR_SUPPORT BIT_ULL(14)
#define OTX2_FLAG_PTP_ONESTEP_SYNC BIT_ULL(15)
#define OTX2_FLAG_ADPTV_INT_COAL_ENABLED BIT_ULL(16)
+#define OTX2_FLAG_TC_MARK_ENABLED BIT_ULL(17)
u64 flags;
u64 *cq_op_addr;

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
index 4fd44b6eecea..fd1d78601811 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
@@ -511,7 +511,15 @@ static int otx2_tc_parse_actions(struct otx2_nic *nic,
nr_police++;
break;
case FLOW_ACTION_MARK:
+ if (act->mark & ~OTX2_RX_MATCH_ID_MASK) {
+ NL_SET_ERR_MSG_MOD(extack, "Bad flow mark, only 16 bit supported");
+ return -EOPNOTSUPP;
+ }
mark = act->mark;
+ req->match_id = mark & 0xFFFFULL;
+ req->op = NIX_RX_ACTION_DEFAULT;
+ nic->flags |= OTX2_FLAG_TC_MARK_ENABLED;
+ nic->flow_cfg->mark_flows++;
break;

case FLOW_ACTION_RX_QUEUE_MAPPING:
@@ -1173,6 +1181,11 @@ static int otx2_tc_del_flow(struct otx2_nic *nic,
return -EINVAL;
}

+ /* Disable TC MARK flag if they are no rules with skbedit mark action */
+ if (flow_node->req.match_id)
+ if (!(--flow_cfg->mark_flows))
+ nic->flags &= ~OTX2_FLAG_TC_MARK_ENABLED;
+
if (flow_node->is_act_police) {
__clear_bit(flow_node->rq, &nic->rq_bmap);

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
index 4d519ea833b2..d3c9759c9f06 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
@@ -380,6 +380,9 @@ static void otx2_rcv_pkt_handler(struct otx2_nic *pfvf,
if (pfvf->netdev->features & NETIF_F_RXCSUM)
skb->ip_summed = CHECKSUM_UNNECESSARY;

+ if (pfvf->flags & OTX2_FLAG_TC_MARK_ENABLED)
+ skb->mark = parse->match_id;
+
skb_mark_for_recycle(skb);

napi_gro_frags(napi);
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h
index a82ffca8ce1b..3f1d2655ff77 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h
@@ -62,6 +62,9 @@
#define CQ_OP_STAT_OP_ERR 63
#define CQ_OP_STAT_CQ_ERR 46

+/* Packet mark mask */
+#define OTX2_RX_MATCH_ID_MASK 0x0000ffff
+
struct queue_stats {
u64 bytes;
u64 pkts;
--
2.25.1

2024-01-09 03:20:24

by Jakub Kicinski

Subject: Re: [net-next PATCH] octeontx2-pf: Add support for offload tc with skbedit mark action

On Fri, 5 Jan 2024 17:32:47 +0530 Geetha sowjanya wrote:
> Support offloading of skbedit mark action.
>
> For example, to mark with 0x0008, with dest ip 60.60.60.2 on eth2
> interface:
>
> # tc qdisc add dev eth2 ingress
> # tc filter add dev eth2 ingress protocol ip flower \
> dst_ip 60.60.60.2 action skbedit mark 0x0008 skip_sw

We didn't get to this patch in time for v6.8 merge window, sorry.
Please repost in two weeks when net-next reopens for v6.9.
--
pw-bot: defer