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Message-ID: <20250716164158.1537269-5-hkelam@marvell.com>
Date: Wed, 16 Jul 2025 22:11:58 +0530
From: Hariprasad Kelam <hkelam@...vell.com>
To: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <kuba@...nel.org>, <davem@...emloft.net>, <sgoutham@...vell.com>,
<gakula@...vell.com>, <jerinj@...vell.com>, <lcherian@...vell.com>,
<sbhatta@...vell.com>, <hkelam@...vell.com>, <naveenm@...vell.com>,
<edumazet@...gle.com>, <pabeni@...hat.com>, <andrew+netdev@...n.ch>,
<bbhushan2@...vell.com>
Subject: [net-next 4/4] Octeontx2-af: Debugfs support for firmware data
MAC address, Link modes (supported and advertised) and eeprom data
for the Netdev interface are read from the shared firmware data.
This patch adds debugfs support for the same.
Signed-off-by: Hariprasad Kelam <hkelam@...vell.com>
---
.../net/ethernet/marvell/octeontx2/af/mbox.h | 7 +-
.../marvell/octeontx2/af/rvu_debugfs.c | 148 ++++++++++++++++++
2 files changed, 154 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 0bc0dc79868b..933073cd2280 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -664,7 +664,12 @@ struct cgx_lmac_fwdata_s {
/* Only applicable if SFP/QSFP slot is present */
struct sfp_eeprom_s sfp_eeprom;
struct phy_s phy;
-#define LMAC_FWDATA_RESERVED_MEM 1021
+ u32 lmac_type;
+ u32 portm_idx;
+ u64 mgmt_port:1;
+ u64 advertised_an:1;
+ u64 port;
+#define LMAC_FWDATA_RESERVED_MEM 1018
u64 reserved[LMAC_FWDATA_RESERVED_MEM];
};
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
index 0c20642f81b9..900bd1ae240d 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
@@ -867,6 +867,65 @@ static int rvu_dbg_rvu_pf_cgx_map_display(struct seq_file *filp, void *unused)
RVU_DEBUG_SEQ_FOPS(rvu_pf_cgx_map, rvu_pf_cgx_map_display, NULL);
+static int rvu_dbg_rvu_fwdata_display(struct seq_file *s, void *unused)
+{
+ struct rvu *rvu = s->private;
+ struct rvu_fwdata *fwdata;
+ u8 mac[ETH_ALEN];
+ int count = 0, i;
+
+ if (!rvu->fwdata)
+ return -EAGAIN;
+
+ fwdata = rvu->fwdata;
+ seq_puts(s, "\nRVU Firmware Data:\n");
+ seq_puts(s, "\n\t\tPTP INFORMATION\n");
+ seq_puts(s, "\t\t===============\n");
+ seq_printf(s, "\t\texternal clockrate \t :%x\n", fwdata->ptp_ext_clk_rate);
+ seq_printf(s, "\t\texternal timestamp \t :%x\n", fwdata->ptp_ext_tstamp);
+ seq_puts(s, "\n");
+
+ seq_puts(s, "\n\t\tSDP CHANNEL INFORMATION\n");
+ seq_puts(s, "\t\t=======================\n");
+ seq_printf(s, "\t\tValid \t\t\t :%x\n", fwdata->channel_data.valid);
+ seq_printf(s, "\t\tNode ID \t\t :%x\n", fwdata->channel_data.info.node_id);
+ seq_printf(s, "\t\tNumner of VFs \t\t :%x\n", fwdata->channel_data.info.max_vfs);
+ seq_printf(s, "\t\tNumber of PF-Rings \t :%x\n", fwdata->channel_data.info.num_pf_rings);
+ seq_printf(s, "\t\tPF SRN \t\t\t :%x\n", fwdata->channel_data.info.pf_srn);
+ seq_puts(s, "\n");
+
+ seq_puts(s, "\n\t\tPF-INDEX MACADDRESS\n");
+ seq_puts(s, "\t\t====================\n");
+ for (i = 0; i < PF_MACNUM_MAX; i++) {
+ u64_to_ether_addr(fwdata->pf_macs[i], mac);
+ if (!is_zero_ether_addr(mac)) {
+ seq_printf(s, "\t\t %d %pM\n", i, mac);
+ count++;
+ }
+ }
+
+ if (!count)
+ seq_puts(s, "\t\tNo valid address found\n");
+
+ seq_puts(s, "\n\t\tVF-INDEX MACADDRESS\n");
+ seq_puts(s, "\t\t====================\n");
+ count = 0;
+ for (i = 0; i < VF_MACNUM_MAX; i++) {
+ u64_to_ether_addr(fwdata->vf_macs[i], mac);
+ if (!is_zero_ether_addr(mac)) {
+ seq_printf(s, "\t\t %d %pM\n", i, mac);
+ count++;
+ }
+ }
+
+ if (!count)
+ seq_puts(s, "\t\tNo valid address found\n");
+
+ return 0;
+}
+
+RVU_DEBUG_SEQ_FOPS(rvu_fwdata, rvu_fwdata_display, NULL);
+
static bool rvu_dbg_is_valid_lf(struct rvu *rvu, int blkaddr, int lf,
u16 *pcifunc)
{
@@ -2923,6 +2982,89 @@ static int rvu_dbg_cgx_dmac_flt_display(struct seq_file *s, void *unused)
RVU_DEBUG_SEQ_FOPS(cgx_dmac_flt, cgx_dmac_flt_display, NULL);
+static int cgx_print_fwdata(struct seq_file *s, int lmac_id)
+{
+ struct cgx_lmac_fwdata_s *fwdata;
+ void *cgxd = s->private;
+ struct phy_s *phy;
+ struct rvu *rvu;
+ int cgx_id, i;
+
+ rvu = pci_get_drvdata(pci_get_device(PCI_VENDOR_ID_CAVIUM,
+ PCI_DEVID_OCTEONTX2_RVU_AF, NULL));
+ if (!rvu)
+ return -ENODEV;
+
+ if (!rvu->fwdata)
+ return -EAGAIN;
+
+ cgx_id = cgx_get_cgxid(cgxd);
+
+ if (rvu->hw->lmac_per_cgx == CGX_LMACS_USX)
+ fwdata = &rvu->fwdata->cgx_fw_data_usx[cgx_id][lmac_id];
+ else
+ fwdata = &rvu->fwdata->cgx_fw_data[cgx_id][lmac_id];
+
+ seq_puts(s, "\nFIRMWARE SHARED:\n");
+ seq_puts(s, "\t\tSUPPORTED LINK INFORMATION\t\t\n");
+ seq_puts(s, "\t\t==========================\n");
+ seq_printf(s, "\t\t Link modes \t\t :%llx\n", fwdata->supported_link_modes);
+ seq_printf(s, "\t\t Autoneg \t\t :%llx\n", fwdata->supported_an);
+ seq_printf(s, "\t\t FEC \t\t\t :%llx\n", fwdata->supported_fec);
+ seq_puts(s, "\n");
+
+ seq_puts(s, "\t\tADVERTISED LINK INFORMATION\t\t\n");
+ seq_puts(s, "\t\t==========================\n");
+ seq_printf(s, "\t\t Link modes \t\t :%llx\n", (u64)fwdata->advertised_link_modes);
+ seq_printf(s, "\t\t Autoneg \t\t :%x\n", fwdata->advertised_an);
+ seq_printf(s, "\t\t FEC \t\t\t :%llx\n", fwdata->advertised_fec);
+ seq_puts(s, "\n");
+
+ seq_puts(s, "\t\tLMAC CONFIG\t\t\n");
+ seq_puts(s, "\t\t============\n");
+ seq_printf(s, "\t\t rw_valid \t\t :%x\n", fwdata->rw_valid);
+ seq_printf(s, "\t\t lmac_type \t\t :%x\n", fwdata->lmac_type);
+ seq_printf(s, "\t\t portm_idx \t\t :%x\n", fwdata->portm_idx);
+ seq_printf(s, "\t\t mgmt_port \t\t :%x\n", fwdata->mgmt_port);
+ seq_printf(s, "\t\t Link modes own \t :%llx\n", (u64)fwdata->advertised_link_modes_own);
+ seq_puts(s, "\n");
+
+ seq_puts(s, "\n\t\tEEPROM DATA\n");
+ seq_puts(s, "\t\t===========\n");
+ seq_printf(s, "\t\t sff_id \t\t :%x\n", fwdata->sfp_eeprom.sff_id);
+ seq_puts(s, "\t\t data \t\t\t :\n");
+ seq_puts(s, "\t\t");
+ for (i = 0; i < SFP_EEPROM_SIZE; i++) {
+ seq_printf(s, "%x", fwdata->sfp_eeprom.buf[i]);
+ if ((i + 1) % 16 == 0) {
+ seq_puts(s, "\n");
+ seq_puts(s, "\t\t");
+ }
+ }
+ seq_puts(s, "\n");
+
+ phy = &fwdata->phy;
+ seq_puts(s, "\n\t\tPHY INFORMATION\n");
+ seq_puts(s, "\t\t===============\n");
+ seq_printf(s, "\t\t Mod type configurable \t\t :%x\n", phy->misc.can_change_mod_type);
+ seq_printf(s, "\t\t Mod type \t\t\t :%x\n", phy->misc.mod_type);
+ seq_printf(s, "\t\t Support FEC \t\t\t :%x\n", phy->misc.has_fec_stats);
+ seq_printf(s, "\t\t RSFEC corrected words \t\t :%x\n", phy->fec_stats.rsfec_corr_cws);
+ seq_printf(s, "\t\t RSFEC uncorrected words \t :%x\n", phy->fec_stats.rsfec_uncorr_cws);
+ seq_printf(s, "\t\t BRFEC corrected words \t\t :%x\n", phy->fec_stats.brfec_corr_blks);
+ seq_printf(s, "\t\t BRFEC uncorrected words \t :%x\n", phy->fec_stats.brfec_uncorr_blks);
+ seq_puts(s, "\n");
+
+ return 0;
+}
+
+static int rvu_dbg_cgx_fwdata_display(struct seq_file *s, void *unused)
+{
+ return cgx_print_fwdata(s, rvu_dbg_derive_lmacid(s));
+}
+
+RVU_DEBUG_SEQ_FOPS(cgx_fwdata, cgx_fwdata_display, NULL);
+
static void rvu_dbg_cgx_init(struct rvu *rvu)
{
struct mac_ops *mac_ops;
@@ -2962,6 +3104,9 @@ static void rvu_dbg_cgx_init(struct rvu *rvu)
debugfs_create_file_aux_num("mac_filter", 0600,
rvu->rvu_dbg.lmac, cgx, lmac_id,
&rvu_dbg_cgx_dmac_flt_fops);
+ debugfs_create_file("fwdata", 0600,
+ rvu->rvu_dbg.lmac, cgx,
+ &rvu_dbg_cgx_fwdata_fops);
}
}
}
@@ -3808,6 +3953,9 @@ void rvu_dbg_init(struct rvu *rvu)
debugfs_create_file("lmtst_map_table", 0444, rvu->rvu_dbg.root,
rvu, &rvu_dbg_lmtst_map_table_fops);
+ debugfs_create_file("rvu_fwdata", 0444, rvu->rvu_dbg.root, rvu,
+ &rvu_dbg_rvu_fwdata_fops);
+
if (!cgx_get_cgxcnt_max())
goto create;
--
2.34.1
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