1 files changed, 306 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_devlink.c b/drivers/net/ethernet/broadcom/bnge/bnge_devlink.c
new file mode 100644
index 000000000000..a987afebd64d
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/bnge/bnge_devlink.c
@@ -0,0 +1,306 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2025 Broadcom.
+
+#include <linux/unaligned.h>
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <net/devlink.h>
+
+#include "bnge.h"
+#include "bnge_devlink.h"
+#include "bnge_hwrm_lib.h"
+
+static int bnge_dl_info_put(struct bnge_dev *bd, struct devlink_info_req *req,
+			    enum bnge_dl_version_type type, const char *key,
+			    char *buf)
+{
+	if (!strlen(buf))
+		return 0;
+
+	if (!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) ||
+	    !strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE))
+		return 0;
+
+	switch (type) {
+	case BNGE_VERSION_FIXED:
+		return devlink_info_version_fixed_put(req, key, buf);
+	case BNGE_VERSION_RUNNING:
+		return devlink_info_version_running_put(req, key, buf);
+	case BNGE_VERSION_STORED:
+		return devlink_info_version_stored_put(req, key, buf);
+	}
+
+	return 0;
+}
+
+static void bnge_vpd_read_info(struct bnge_dev *bd)
+{
+	struct pci_dev *pdev = bd->pdev;
+	unsigned int vpd_size, kw_len;
+	int pos, size;
+	u8 *vpd_data;
+
+	vpd_data = pci_vpd_alloc(pdev, &vpd_size);
+	if (IS_ERR(vpd_data)) {
+		pci_warn(pdev, "Unable to read VPD\n");
+		return;
+	}
+
+	pos = pci_vpd_find_ro_info_keyword(vpd_data, vpd_size,
+					   PCI_VPD_RO_KEYWORD_PARTNO, &kw_len);
+	if (pos < 0)
+		goto read_sn;
+
+	size = min_t(int, kw_len, BNGE_VPD_FLD_LEN - 1);
+	memcpy(bd->board_partno, &vpd_data[pos], size);
+
+read_sn:
+	pos = pci_vpd_find_ro_info_keyword(vpd_data, vpd_size,
+					   PCI_VPD_RO_KEYWORD_SERIALNO,
+					   &kw_len);
+	if (pos < 0)
+		goto exit;
+
+	size = min_t(int, kw_len, BNGE_VPD_FLD_LEN - 1);
+	memcpy(bd->board_serialno, &vpd_data[pos], size);
+
+exit:
+	kfree(vpd_data);
+}
+
+#define HWRM_FW_VER_STR_LEN	16
+
+static int bnge_devlink_info_get(struct devlink *devlink,
+				 struct devlink_info_req *req,
+				 struct netlink_ext_ack *extack)
+{
+	struct hwrm_nvm_get_dev_info_output nvm_dev_info;
+	struct bnge_dev *bd = devlink_priv(devlink);
+	struct hwrm_ver_get_output *ver_resp;
+	char mgmt_ver[FW_VER_STR_LEN];
+	char roce_ver[FW_VER_STR_LEN];
+	char ncsi_ver[FW_VER_STR_LEN];
+	char buf[32];
+
+	int rc;
+
+	if (bd->dsn) {
+		char buf[32];
+		u8 dsn[8];
+		int rc;
+
+		put_unaligned_le64(bd->dsn, dsn);
+		sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X",
+			dsn[7], dsn[6], dsn[5], dsn[4],
+			dsn[3], dsn[2], dsn[1], dsn[0]);
+		rc = devlink_info_serial_number_put(req, buf);
+		if (rc) {
+			NL_SET_ERR_MSG_MOD(extack, "Failed to set dsn");
+			return rc;
+		}
+	}
+
+	if (strlen(bd->board_serialno)) {
+		rc = devlink_info_board_serial_number_put(req,
+							  bd->board_serialno);
+		if (rc) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Failed to set board serial number");
+			return rc;
+		}
+	}
+
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_FIXED,
+			      DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
+			      bd->board_partno);
+	if (rc) {
+		NL_SET_ERR_MSG_MOD(extack, "Failed to set board part number");
+		return rc;
+	}
+
+	/* More information from HWRM ver get command */
+	sprintf(buf, "%X", bd->chip_num);
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_FIXED,
+			      DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf);
+	if (rc) {
+		NL_SET_ERR_MSG_MOD(extack, "Failed to set asic id");
+		return rc;
+	}
+
+	ver_resp = &bd->ver_resp;
+	sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal);
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_FIXED,
+			      DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf);
+	if (rc) {
+		NL_SET_ERR_MSG_MOD(extack, "Failed to set asic info");
+		return rc;
+	}
+
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_RUNNING,
+			      DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
+			      bd->nvm_cfg_ver);
+	if (rc) {
+		NL_SET_ERR_MSG_MOD(extack, "Failed to set firmware version");
+		return rc;
+	}
+
+	buf[0] = 0;
+	strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN);
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_RUNNING,
+			      DEVLINK_INFO_VERSION_GENERIC_FW, buf);
+	if (rc) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Failed to set firmware generic version");
+		return rc;
+	}
+
+	if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) {
+		snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
+			 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor,
+			 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch);
+
+		snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
+			 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor,
+			 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch);
+
+		snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
+			 ver_resp->roce_fw_major, ver_resp->roce_fw_minor,
+			 ver_resp->roce_fw_build, ver_resp->roce_fw_patch);
+	} else {
+		snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
+			 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b,
+			 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b);
+
+		snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
+			 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b,
+			 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b);
+
+		snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
+			 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b,
+			 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b);
+	}
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_RUNNING,
+			      DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
+	if (rc) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Failed to set firmware mgmt version");
+		return rc;
+	}
+
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_RUNNING,
+			      DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
+			      bd->hwrm_ver_supp);
+	if (rc) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Failed to set firmware mgmt api version");
+		return rc;
+	}
+
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_RUNNING,
+			      DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
+	if (rc) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Failed to set ncsi firmware version");
+		return rc;
+	}
+
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_RUNNING,
+			      DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
+	if (rc) {
+		NL_SET_ERR_MSG_MOD(extack, "Failed to set roce firmware version");
+		return rc;
+	}
+
+	rc = bnge_hwrm_nvm_dev_info(bd, &nvm_dev_info);
+	if (!(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID))
+		return 0;
+
+	buf[0] = 0;
+	strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN);
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_STORED,
+			      DEVLINK_INFO_VERSION_GENERIC_FW, buf);
+	if (rc) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Failed to set roce firmware version");
+		return rc;
+	}
+
+	snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
+		 nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor,
+		 nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch);
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_STORED,
+			      DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
+	if (rc) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Failed to set stored firmware version");
+		return rc;
+	}
+
+	snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
+		 nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor,
+		 nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch);
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_STORED,
+			      DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
+	if (rc) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Failed to set stored ncsi firmware version");
+		return rc;
+	}
+
+	snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
+		 nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor,
+		 nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch);
+	rc = bnge_dl_info_put(bd, req, BNGE_VERSION_STORED,
+			      DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
+	if (rc)
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Failed to set stored roce firmware version");
+
+	return rc;
+}
+
+static const struct devlink_ops bnge_devlink_ops = {
+	.info_get = bnge_devlink_info_get,
+};
+
+void bnge_devlink_free(struct bnge_dev *bd)
+{
+	struct devlink *devlink = priv_to_devlink(bd);
+
+	devlink_free(devlink);
+}
+
+struct bnge_dev *bnge_devlink_alloc(struct pci_dev *pdev)
+{
+	struct devlink *devlink;
+	struct bnge_dev *bd;
+
+	devlink = devlink_alloc(&bnge_devlink_ops, sizeof(*bd), &pdev->dev);
+	if (!devlink)
+		return NULL;
+
+	bd = devlink_priv(devlink);
+	pci_set_drvdata(pdev, bd);
+	bd->dev = &pdev->dev;
+	bd->pdev = pdev;
+
+	bd->dsn = pci_get_dsn(pdev);
+	if (!bd->dsn)
+		pci_warn(pdev, "Failed to get DSN\n");
+
+	bnge_vpd_read_info(bd);
+
+	return bd;
+}
+
+void bnge_devlink_register(struct bnge_dev *bd)
+{
+	struct devlink *devlink = priv_to_devlink(bd);
+	devlink_register(devlink);
+}
+
+void bnge_devlink_unregister(struct bnge_dev *bd)
+{
+	struct devlink *devlink = priv_to_devlink(bd);
+	devlink_unregister(devlink);
+}