net/octeontx2: fix flow creation limit on CN98xx

[ upstream commit b65db6a ]

CN96xx and CN98xx have 4096 and 16384 MCAM entries respectively.
Aligning the code with the same numbers.

Fixes: 092b383 ("net/octeontx2: add flow init and fini")

Signed-off-by: Satheesh Paul <psatheesh@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

drivers/common/octeontx2/otx2_dev.h

@@ -55,6 +55,9 @@
 	 (RVU_PCI_REV_MINOR(otx2_dev_revid(dev)) == 0x0) &&	\
 	 (RVU_PCI_REV_MIDR_ID(otx2_dev_revid(dev)) == 0x0))
 
+#define otx2_dev_is_98xx(dev)                                   \
+	 (RVU_PCI_REV_MIDR_ID(otx2_dev_revid(dev)) == 0x3)
+
 struct otx2_dev;
 
 /* Link status callback */

drivers/net/octeontx2/otx2_flow.c

@@ -963,12 +963,23 @@ flow_fetch_kex_cfg(struct otx2_eth_dev *dev)
 	return rc;
 }
 
+#define OTX2_MCAM_TOT_ENTRIES_96XX (4096)
+#define OTX2_MCAM_TOT_ENTRIES_98XX (16384)
+
+static int otx2_mcam_tot_entries(struct otx2_eth_dev *dev)
+{
+	if (otx2_dev_is_98xx(dev))
+		return OTX2_MCAM_TOT_ENTRIES_98XX;
+	else
+		return OTX2_MCAM_TOT_ENTRIES_96XX;
+}
+
 int
 otx2_flow_init(struct otx2_eth_dev *hw)
 {
 	uint8_t *mem = NULL, *nix_mem = NULL, *npc_mem = NULL;
 	struct otx2_npc_flow_info *npc = &hw->npc_flow;
-	uint32_t bmap_sz;
+	uint32_t bmap_sz, tot_mcam_entries = 0;
 	int rc = 0, idx;
 
 	rc = flow_fetch_kex_cfg(hw);
@@ -980,7 +991,8 @@ otx2_flow_init(struct otx2_eth_dev *hw)
 	rte_atomic32_init(&npc->mark_actions);
 	npc->vtag_actions = 0;
 
-	npc->mcam_entries = NPC_MCAM_TOT_ENTRIES >> npc->keyw[NPC_MCAM_RX];
+	tot_mcam_entries = otx2_mcam_tot_entries(hw);
+	npc->mcam_entries = tot_mcam_entries >> npc->keyw[NPC_MCAM_RX];
 	/* Free, free_rev, live and live_rev entries */
 	bmap_sz = rte_bitmap_get_memory_footprint(npc->mcam_entries);
 	mem = rte_zmalloc(NULL, 4 * bmap_sz * npc->flow_max_priority,

drivers/net/octeontx2/otx2_flow.h

@@ -34,7 +34,6 @@ enum {
 /* 32 bytes from LDATA_CFG & 32 bytes from FLAGS_CFG */
 #define NPC_MAX_EXTRACT_DATA_LEN	(64)
 #define NPC_LDATA_LFLAG_LEN		(16)
-#define NPC_MCAM_TOT_ENTRIES		(4096)
 #define NPC_MAX_KEY_NIBBLES		(31)
 /* Nibble offsets */
 #define NPC_LAYER_KEYX_SZ		(3)