Merge branch 'octeontx2-cpt-rss-cfg-fixes' into main

Srujana Challa says:

====================
Fixes for CPT and RSS configuration

This series of patches fixes various issues related to CPT
configuration and RSS configuration.

v1->v2:
- Excluded the patch "octeontx2-af: reduce cpt flt interrupt vectors for
  cn10kb" to submit it to net-next.
- Addressed the review comments.

Kiran Kumar K (1):
  octeontx2-af: Fix issue with IPv6 ext match for RSS
====================

Signed-off-by: David S. Miller <[email protected]>

Author: davem330

drivers/net/ethernet/marvell/octeontx2/af/mbox.h

@@ -1745,7 +1745,7 @@ struct cpt_lf_alloc_req_msg {
 	u16 nix_pf_func;
 	u16 sso_pf_func;
 	u16 eng_grpmsk;
-	int blkaddr;
+	u8 blkaddr;
 	u8 ctx_ilen_valid : 1;
 	u8 ctx_ilen : 7;
 };

drivers/net/ethernet/marvell/octeontx2/af/npc.h

@@ -63,16 +63,20 @@ enum npc_kpu_lb_ltype {
 	NPC_LT_LB_CUSTOM1 = 0xF,
 };
 
+/* Don't modify ltypes up to IP6_EXT, otherwise length and checksum of IP
+ * headers may not be checked correctly. IPv4 ltypes and IPv6 ltypes must
+ * differ only at bit 0 so mask 0xE can be used to detect extended headers.
+ */
 enum npc_kpu_lc_ltype {
-	NPC_LT_LC_IP = 1,
+	NPC_LT_LC_PTP = 1,
+	NPC_LT_LC_IP,
 	NPC_LT_LC_IP_OPT,
 	NPC_LT_LC_IP6,
 	NPC_LT_LC_IP6_EXT,
 	NPC_LT_LC_ARP,
 	NPC_LT_LC_RARP,
 	NPC_LT_LC_MPLS,
 	NPC_LT_LC_NSH,
-	NPC_LT_LC_PTP,
 	NPC_LT_LC_FCOE,
 	NPC_LT_LC_NGIO,
 	NPC_LT_LC_CUSTOM0 = 0xE,

drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c

@@ -696,7 +696,8 @@ int rvu_mbox_handler_cpt_rd_wr_register(struct rvu *rvu,
 					struct cpt_rd_wr_reg_msg *req,
 					struct cpt_rd_wr_reg_msg *rsp)
 {
-	int blkaddr;
+	u64 offset = req->reg_offset;
+	int blkaddr, lf;
 
 	blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr);
 	if (blkaddr < 0)
@@ -707,17 +708,25 @@ int rvu_mbox_handler_cpt_rd_wr_register(struct rvu *rvu,
 	    !is_cpt_vf(rvu, req->hdr.pcifunc))
 		return CPT_AF_ERR_ACCESS_DENIED;
 
-	rsp->reg_offset = req->reg_offset;
-	rsp->ret_val = req->ret_val;
-	rsp->is_write = req->is_write;
-
 	if (!is_valid_offset(rvu, req))
 		return CPT_AF_ERR_ACCESS_DENIED;
 
+	/* Translate local LF used by VFs to global CPT LF */
+	lf = rvu_get_lf(rvu, &rvu->hw->block[blkaddr], req->hdr.pcifunc,
+			(offset & 0xFFF) >> 3);
+
+	/* Translate local LF's offset to global CPT LF's offset */
+	offset &= 0xFF000;
+	offset += lf << 3;
+
+	rsp->reg_offset = offset;
+	rsp->ret_val = req->ret_val;
+	rsp->is_write = req->is_write;
+
 	if (req->is_write)
-		rvu_write64(rvu, blkaddr, req->reg_offset, req->val);
+		rvu_write64(rvu, blkaddr, offset, req->val);
 	else
-		rsp->val = rvu_read64(rvu, blkaddr, req->reg_offset);
+		rsp->val = rvu_read64(rvu, blkaddr, offset);
 
 	return 0;
 }

drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c

@@ -3864,6 +3864,11 @@ static int get_flowkey_alg_idx(struct nix_hw *nix_hw, u32 flow_cfg)
 	return -ERANGE;
 }
 
+/* Mask to match ipv6(NPC_LT_LC_IP6) and ipv6 ext(NPC_LT_LC_IP6_EXT) */
+#define NPC_LT_LC_IP6_MATCH_MSK ((~(NPC_LT_LC_IP6 ^ NPC_LT_LC_IP6_EXT)) & 0xf)
+/* Mask to match both ipv4(NPC_LT_LC_IP) and ipv4 ext(NPC_LT_LC_IP_OPT) */
+#define NPC_LT_LC_IP_MATCH_MSK  ((~(NPC_LT_LC_IP ^ NPC_LT_LC_IP_OPT)) & 0xf)
+
 static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
 {
 	int idx, nr_field, key_off, field_marker, keyoff_marker;
@@ -3933,7 +3938,7 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
 			field->hdr_offset = 9; /* offset */
 			field->bytesm1 = 0; /* 1 byte */
 			field->ltype_match = NPC_LT_LC_IP;
-			field->ltype_mask = 0xF;
+			field->ltype_mask = NPC_LT_LC_IP_MATCH_MSK;
 			break;
 		case NIX_FLOW_KEY_TYPE_IPV4:
 		case NIX_FLOW_KEY_TYPE_INNR_IPV4:
@@ -3960,8 +3965,7 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
 					field->bytesm1 = 3; /* DIP, 4 bytes */
 				}
 			}
-
-			field->ltype_mask = 0xF; /* Match only IPv4 */
+			field->ltype_mask = NPC_LT_LC_IP_MATCH_MSK;
 			keyoff_marker = false;
 			break;
 		case NIX_FLOW_KEY_TYPE_IPV6:
@@ -3990,7 +3994,7 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
 					field->bytesm1 = 15; /* DIP,16 bytes */
 				}
 			}
-			field->ltype_mask = 0xF; /* Match only IPv6 */
+			field->ltype_mask = NPC_LT_LC_IP6_MATCH_MSK;
 			break;
 		case NIX_FLOW_KEY_TYPE_TCP:
 		case NIX_FLOW_KEY_TYPE_UDP: