octeontx2-af: cn10k: Add RPM MAC support

OcteonTx2's next gen platform the CN10K has RPM MAC which has a
different serdes when compared to CGX MAC. Though the underlying
HW is different, the CSR interface has been designed largely inline
with CGX MAC, with few exceptions though. So we are using the same
CGX driver for RPM MAC as well and will have a different set of APIs
for RPM where ever necessary.

This patch adds initial support for CN10K's RPM MAC i.e. the driver
registration, communication with firmware etc. For communication with
firmware, RPM provides a different IRQ when compared to CGX.
The CGX and RPM blocks support different features. Currently few
features like ptp, flowcontrol and higig are not supported by RPM. This
patch adds new mailbox message "CGX_FEATURES_GET" to get the list of
features supported by underlying MAC.

RPM has different implementations for RX/TX stats. Unlike CGX,
bar offset of stat registers are different. This patch adds
support to access the same and dump the values in debugfs.

Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 43 insertions, 11 deletions

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
index 02775d49cf0f..96ae6f79568d 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
@@ -19,6 +19,7 @@
 #include "rvu_reg.h"
 #include "rvu.h"
 #include "cgx.h"
+#include "lmac_common.h"
 #include "npc.h"
 
 #define DEBUGFS_DIR_NAME "octeontx2"
@@ -234,6 +235,8 @@ static int rvu_dbg_rvu_pf_cgx_map_display(struct seq_file *filp, void *unused)
 {
 	struct rvu *rvu = filp->private;
 	struct pci_dev *pdev = NULL;
+	struct mac_ops *mac_ops;
+	int rvu_def_cgx_id = 0;
 	char cgx[10], lmac[10];
 	struct rvu_pfvf *pfvf;
 	int pf, domain, blkid;
@@ -241,7 +244,9 @@ static int rvu_dbg_rvu_pf_cgx_map_display(struct seq_file *filp, void *unused)
 	u16 pcifunc;
 
 	domain = 2;
-	seq_puts(filp, "PCI dev\t\tRVU PF Func\tNIX block\tCGX\tLMAC\n");
+	mac_ops = get_mac_ops(rvu_cgx_pdata(rvu_def_cgx_id, rvu));
+	seq_printf(filp, "PCI dev\t\tRVU PF Func\tNIX block\t%s\tLMAC\n",
+		   mac_ops->name);
 	for (pf = 0; pf < rvu->hw->total_pfs; pf++) {
 		if (!is_pf_cgxmapped(rvu, pf))
 			continue;
@@ -262,7 +267,7 @@ static int rvu_dbg_rvu_pf_cgx_map_display(struct seq_file *filp, void *unused)
 
 		rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id,
 				    &lmac_id);
-		sprintf(cgx, "CGX%d", cgx_id);
+		sprintf(cgx, "%s%d", mac_ops->name, cgx_id);
 		sprintf(lmac, "LMAC%d", lmac_id);
 		seq_printf(filp, "%s\t0x%x\t\tNIX%d\t\t%s\t%s\n",
 			   dev_name(&pdev->dev), pcifunc, blkid, cgx, lmac);
@@ -1601,6 +1606,7 @@ static void rvu_dbg_npa_init(struct rvu *rvu)
 static int cgx_print_stats(struct seq_file *s, int lmac_id)
 {
 	struct cgx_link_user_info linfo;
+	struct mac_ops *mac_ops;
 	void *cgxd = s->private;
 	u64 ucast, mcast, bcast;
 	int stat = 0, err = 0;
@@ -1612,6 +1618,11 @@ static int cgx_print_stats(struct seq_file *s, int lmac_id)
 	if (!rvu)
 		return -ENODEV;
 
+	mac_ops = get_mac_ops(cgxd);
+
+	if (!mac_ops)
+		return 0;
+
 	/* Link status */
 	seq_puts(s, "\n=======Link Status======\n\n");
 	err = cgx_get_link_info(cgxd, lmac_id, &linfo);
@@ -1621,7 +1632,8 @@ static int cgx_print_stats(struct seq_file *s, int lmac_id)
 		   linfo.link_up ? "UP" : "DOWN", linfo.speed);
 
 	/* Rx stats */
-	seq_puts(s, "\n=======NIX RX_STATS(CGX port level)======\n\n");
+	seq_printf(s, "\n=======NIX RX_STATS(%s port level)======\n\n",
+		   mac_ops->name);
 	ucast = PRINT_CGX_CUML_NIXRX_STATUS(RX_UCAST, "rx_ucast_frames");
 	if (err)
 		return err;
@@ -1643,7 +1655,8 @@ static int cgx_print_stats(struct seq_file *s, int lmac_id)
 		return err;
 
 	/* Tx stats */
-	seq_puts(s, "\n=======NIX TX_STATS(CGX port level)======\n\n");
+	seq_printf(s, "\n=======NIX TX_STATS(%s port level)======\n\n",
+		   mac_ops->name);
 	ucast = PRINT_CGX_CUML_NIXTX_STATUS(TX_UCAST, "tx_ucast_frames");
 	if (err)
 		return err;
@@ -1662,7 +1675,7 @@ static int cgx_print_stats(struct seq_file *s, int lmac_id)
 		return err;
 
 	/* Rx stats */
-	seq_puts(s, "\n=======CGX RX_STATS======\n\n");
+	seq_printf(s, "\n=======%s RX_STATS======\n\n", mac_ops->name);
 	while (stat < CGX_RX_STATS_COUNT) {
 		err = cgx_get_rx_stats(cgxd, lmac_id, stat, &rx_stat);
 		if (err)
@@ -1673,7 +1686,7 @@ static int cgx_print_stats(struct seq_file *s, int lmac_id)
 
 	/* Tx stats */
 	stat = 0;
-	seq_puts(s, "\n=======CGX TX_STATS======\n\n");
+	seq_printf(s, "\n=======%s TX_STATS======\n\n", mac_ops->name);
 	while (stat < CGX_TX_STATS_COUNT) {
 		err = cgx_get_tx_stats(cgxd, lmac_id, stat, &tx_stat);
 		if (err)
@@ -1709,6 +1722,9 @@ RVU_DEBUG_SEQ_FOPS(cgx_stat, cgx_stat_display, NULL);
 
 static void rvu_dbg_cgx_init(struct rvu *rvu)
 {
+	struct mac_ops *mac_ops;
+	unsigned long lmac_bmap;
+	int rvu_def_cgx_id = 0;
 	int i, lmac_id;
 	char dname[20];
 	void *cgx;
@@ -1716,17 +1732,24 @@ static void rvu_dbg_cgx_init(struct rvu *rvu)
 	if (!cgx_get_cgxcnt_max())
 		return;
 
-	rvu->rvu_dbg.cgx_root = debugfs_create_dir("cgx", rvu->rvu_dbg.root);
+	mac_ops = get_mac_ops(rvu_cgx_pdata(rvu_def_cgx_id, rvu));
+	if (!mac_ops)
+		return;
+
+	rvu->rvu_dbg.cgx_root = debugfs_create_dir(mac_ops->name,
+						   rvu->rvu_dbg.root);
 
 	for (i = 0; i < cgx_get_cgxcnt_max(); i++) {
 		cgx = rvu_cgx_pdata(i, rvu);
 		if (!cgx)
 			continue;
+		lmac_bmap = cgx_get_lmac_bmap(cgx);
 		/* cgx debugfs dir */
-		sprintf(dname, "cgx%d", i);
+		sprintf(dname, "%s%d", mac_ops->name, i);
 		rvu->rvu_dbg.cgx = debugfs_create_dir(dname,
 						      rvu->rvu_dbg.cgx_root);
-		for (lmac_id = 0; lmac_id < cgx_get_lmac_cnt(cgx); lmac_id++) {
+
+		for_each_set_bit(lmac_id, &lmac_bmap, MAX_LMAC_PER_CGX) {
 			/* lmac debugfs dir */
 			sprintf(dname, "lmac%d", lmac_id);
 			rvu->rvu_dbg.lmac =
@@ -2307,9 +2330,18 @@ void rvu_dbg_init(struct rvu *rvu)
 
 	debugfs_create_file("rsrc_alloc", 0444, rvu->rvu_dbg.root, rvu,
 			    &rvu_dbg_rsrc_status_fops);
-	debugfs_create_file("rvu_pf_cgx_map", 0444, rvu->rvu_dbg.root, rvu,
-			    &rvu_dbg_rvu_pf_cgx_map_fops);
 
+	if (!cgx_get_cgxcnt_max())
+		goto create;
+
+	if (is_rvu_otx2(rvu))
+		debugfs_create_file("rvu_pf_cgx_map", 0444, rvu->rvu_dbg.root,
+				    rvu, &rvu_dbg_rvu_pf_cgx_map_fops);
+	else
+		debugfs_create_file("rvu_pf_cgx_map", 0444, rvu->rvu_dbg.root,
+				    rvu, &rvu_dbg_rvu_pf_cgx_map_fops);
+
+create:
 	rvu_dbg_npa_init(rvu);
 	rvu_dbg_nix_init(rvu, BLKADDR_NIX0);