netdev - [PATCH net-next 10/10] bnxt_en: Use the new VNIC to create ntuple filters

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Message-Id: <20240220230317.96341-11-michael.chan@broadcom.com>
Date: Tue, 20 Feb 2024 15:03:17 -0800
From: Michael Chan <michael.chan@...adcom.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	pavan.chebbi@...adcom.com,
	andrew.gospodarek@...adcom.com,
	Somnath Kotur <somnath.kotur@...adcom.com>,
	Kalesh AP <kalesh-anakkur.purayil@...adcom.com>
Subject: [PATCH net-next 10/10] bnxt_en: Use the new VNIC to create ntuple filters

From: Pavan Chebbi <pavan.chebbi@...adcom.com>

The newly created vnic (BNXT_VNIC_NTUPLE) is ready to be used to create
ntuple filters when supported by firmware.  All RX rings can be used
regardless of the RSS indirection setting on the default VNIC.

Reviewed-by: Somnath Kotur <somnath.kotur@...adcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@...adcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 33 ++++++++++++++++++-----
 1 file changed, 27 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index b8ef6c2ba40c..9968d67e6c77 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -5785,6 +5785,29 @@ void bnxt_fill_ipv6_mask(__be32 mask[4])
 		mask[i] = cpu_to_be32(~0);
 }
 
+static void
+bnxt_cfg_rfs_ring_tbl_idx(struct bnxt *bp,
+			  struct hwrm_cfa_ntuple_filter_alloc_input *req,
+			  u16 rxq)
+{
+	if (BNXT_SUPPORTS_NTUPLE_VNIC(bp)) {
+		struct bnxt_vnic_info *vnic;
+		u32 enables;
+
+		vnic = &bp->vnic_info[BNXT_VNIC_NTUPLE];
+		req->dst_id = cpu_to_le16(vnic->fw_vnic_id);
+		enables = CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_RFS_RING_TBL_IDX;
+		req->enables |= cpu_to_le32(enables);
+		req->rfs_ring_tbl_idx = cpu_to_le16(rxq);
+	} else {
+		u32 flags;
+
+		flags = CFA_NTUPLE_FILTER_ALLOC_REQ_FLAGS_DEST_RFS_RING_IDX;
+		req->flags |= cpu_to_le32(flags);
+		req->dst_id = cpu_to_le16(rxq);
+	}
+}
+
 int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
 				      struct bnxt_ntuple_filter *fltr)
 {
@@ -5794,7 +5817,6 @@ int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
 	struct flow_keys *keys = &fltr->fkeys;
 	struct bnxt_l2_filter *l2_fltr;
 	struct bnxt_vnic_info *vnic;
-	u32 flags = 0;
 	int rc;
 
 	rc = hwrm_req_init(bp, req, HWRM_CFA_NTUPLE_FILTER_ALLOC);
@@ -5805,16 +5827,15 @@ int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
 	req->l2_filter_id = l2_fltr->base.filter_id;
 
 	if (fltr->base.flags & BNXT_ACT_DROP) {
-		flags = CFA_NTUPLE_FILTER_ALLOC_REQ_FLAGS_DROP;
+		req->flags =
+			cpu_to_le32(CFA_NTUPLE_FILTER_ALLOC_REQ_FLAGS_DROP);
 	} else if (bp->fw_cap & BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2) {
-		flags = CFA_NTUPLE_FILTER_ALLOC_REQ_FLAGS_DEST_RFS_RING_IDX;
-		req->dst_id = cpu_to_le16(fltr->base.rxq);
+		bnxt_cfg_rfs_ring_tbl_idx(bp, req, fltr->base.rxq);
 	} else {
 		vnic = &bp->vnic_info[fltr->base.rxq + 1];
 		req->dst_id = cpu_to_le16(vnic->fw_vnic_id);
 	}
-	req->flags = cpu_to_le32(flags);
-	req->enables = cpu_to_le32(BNXT_NTP_FLTR_FLAGS);
+	req->enables |= cpu_to_le32(BNXT_NTP_FLTR_FLAGS);
 
 	req->ethertype = htons(ETH_P_IP);
 	req->ip_addr_type = CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV4;
-- 
2.30.1


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