From: Subbaraya Sundeep <sbhatta@marvell.com>
Date: Tue, 17 Aug 2021 10:14:43 +0530
Subject: octeontx2-af: Modify install flow error codes
Patch-mainline: v5.15-rc1
Git-commit: 9cfc580956888fbb3e74944f32a59ef347469be1
References: jsc#SLE-24682

When installing a flow using npc_install_flow
mailbox there are number of reasons to reject
the request like caller is not permitted,
invalid channel specified in request, flow
not supported in extraction profile and so on.
Hence define new error codes for npc flows and use
them instead of generic error codes.

Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/marvell/octeontx2/af/mbox.h       |    7 +++++++
 drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c |   16 ++++++++--------
 2 files changed, 15 insertions(+), 8 deletions(-)

--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -1078,6 +1078,13 @@ enum npc_af_status {
 	NPC_MCAM_ALLOC_DENIED	= -702,
 	NPC_MCAM_ALLOC_FAILED	= -703,
 	NPC_MCAM_PERM_DENIED	= -704,
+	NPC_FLOW_INTF_INVALID	= -707,
+	NPC_FLOW_CHAN_INVALID	= -708,
+	NPC_FLOW_NO_NIXLF	= -709,
+	NPC_FLOW_NOT_SUPPORTED	= -710,
+	NPC_FLOW_VF_PERM_DENIED	= -711,
+	NPC_FLOW_VF_NOT_INIT	= -712,
+	NPC_FLOW_VF_OVERLAP	= -713,
 };
 
 struct npc_mcam_alloc_entry_req {
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c
@@ -600,7 +600,7 @@ static int npc_check_unsupported_flows(s
 		dev_info(rvu->dev, "Unsupported flow(s):\n");
 		for_each_set_bit(bit, (unsigned long *)&unsupported, 64)
 			dev_info(rvu->dev, "%s ", npc_get_field_name(bit));
-		return NIX_AF_ERR_NPC_KEY_NOT_SUPP;
+		return -EOPNOTSUPP;
 	}
 
 	return 0;
@@ -1143,10 +1143,10 @@ int rvu_mbox_handler_npc_install_flow(st
 	}
 
 	if (!is_npc_interface_valid(rvu, req->intf))
-		return -EINVAL;
+		return NPC_FLOW_INTF_INVALID;
 
 	if (from_vf && req->default_rule)
-		return NPC_MCAM_PERM_DENIED;
+		return NPC_FLOW_VF_PERM_DENIED;
 
 	/* Each PF/VF info is maintained in struct rvu_pfvf.
 	 * rvu_pfvf for the target PF/VF needs to be retrieved
@@ -1172,12 +1172,12 @@ int rvu_mbox_handler_npc_install_flow(st
 
 	err = npc_check_unsupported_flows(rvu, req->features, req->intf);
 	if (err)
-		return err;
+		return NPC_FLOW_NOT_SUPPORTED;
 
 	/* Skip channel validation if AF is installing */
 	if (!is_pffunc_af(req->hdr.pcifunc) &&
 	    npc_mcam_verify_channel(rvu, target, req->intf, req->channel))
-		return -EINVAL;
+		return NPC_FLOW_CHAN_INVALID;
 
 	pfvf = rvu_get_pfvf(rvu, target);
 
@@ -1195,7 +1195,7 @@ int rvu_mbox_handler_npc_install_flow(st
 	/* Proceed if NIXLF is attached or not for TX rules */
 	err = nix_get_nixlf(rvu, target, &nixlf, NULL);
 	if (err && is_npc_intf_rx(req->intf) && !pf_set_vfs_mac)
-		return -EINVAL;
+		return NPC_FLOW_NO_NIXLF;
 
 	/* don't enable rule when nixlf not attached or initialized */
 	if (!(is_nixlf_attached(rvu, target) &&
@@ -1211,7 +1211,7 @@ int rvu_mbox_handler_npc_install_flow(st
 
 	/* Do not allow requests from uninitialized VFs */
 	if (from_vf && !enable)
-		return -EINVAL;
+		return NPC_FLOW_VF_NOT_INIT;
 
 	/* PF sets VF mac & VF NIXLF is not attached, update the mac addr */
 	if (pf_set_vfs_mac && !enable) {
@@ -1226,7 +1226,7 @@ int rvu_mbox_handler_npc_install_flow(st
 	 */
 	if (from_vf && pfvf->def_ucast_rule && is_npc_intf_rx(req->intf) &&
 	    pfvf->def_ucast_rule->features & req->features)
-		return -EINVAL;
+		return NPC_FLOW_VF_OVERLAP;
 
 	return npc_install_flow(rvu, blkaddr, target, nixlf, pfvf, req, rsp,
 				enable, pf_set_vfs_mac);