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Date:   Sun, 11 Oct 2020 06:22:59 -0400
From:   Michael Chan <michael.chan@...adcom.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, kuba@...nel.org, gospo@...adcom.com,
        Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Subject: [PATCH net-next 7/9] bnxt_en: Add bnxt_hwrm_nvm_get_dev_info() to query NVM info.

From: Vasundhara Volam <vasundhara-v.volam@...adcom.com>

Add a new bnxt_hwrm_nvm_get_dev_info() to query firmware version
information via NVM_GET_DEV_INFO firmware command.  Use it to
get the running version of the NVM configuration information.

This new function will also be used in subsequent patches to get the
stored firmware versions.

Reviewed-by: Andy Gospodarek <gospo@...adcom.com>
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c        | 12 ++++++++++++
 drivers/net/ethernet/broadcom/bnxt/bnxt.h        |  1 +
 .../net/ethernet/broadcom/bnxt/bnxt_ethtool.c    | 16 ++++++++++++++++
 .../net/ethernet/broadcom/bnxt/bnxt_ethtool.h    |  2 ++
 4 files changed, 31 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 2d6ecf1adbc5..55d96e3a69da 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -7562,6 +7562,16 @@ static int bnxt_hwrm_func_reset(struct bnxt *bp)
 	return hwrm_send_message(bp, &req, sizeof(req), HWRM_RESET_TIMEOUT);
 }
 
+static void bnxt_nvm_cfg_ver_get(struct bnxt *bp)
+{
+	struct hwrm_nvm_get_dev_info_output nvm_info;
+
+	if (!bnxt_hwrm_nvm_get_dev_info(bp, &nvm_info))
+		snprintf(bp->nvm_cfg_ver, FW_VER_STR_LEN, "%d.%d.%d",
+			 nvm_info.nvm_cfg_ver_maj, nvm_info.nvm_cfg_ver_min,
+			 nvm_info.nvm_cfg_ver_upd);
+}
+
 static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp)
 {
 	int rc = 0;
@@ -11223,6 +11233,8 @@ static int bnxt_fw_init_one_p1(struct bnxt *bp)
 		if (rc)
 			return rc;
 	}
+	bnxt_nvm_cfg_ver_get(bp);
+
 	rc = bnxt_hwrm_func_reset(bp);
 	if (rc)
 		return -ENODEV;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index b208ff7c5d14..21ef1c21f602 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1856,6 +1856,7 @@ struct bnxt {
 #define PHY_VER_STR_LEN         (FW_VER_STR_LEN - BC_HWRM_STR_LEN)
 	char			fw_ver_str[FW_VER_STR_LEN];
 	char			hwrm_ver_supp[FW_VER_STR_LEN];
+	char			nvm_cfg_ver[FW_VER_STR_LEN];
 	u64			fw_ver_code;
 #define BNXT_FW_VER_CODE(maj, min, bld, rsv)			\
 	((u64)(maj) << 48 | (u64)(min) << 32 | (u64)(bld) << 16 | (rsv))
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index dcbb7b70d60a..53687bc7fcf5 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -2072,6 +2072,22 @@ static u32 bnxt_get_link(struct net_device *dev)
 	return bp->link_info.link_up;
 }
 
+int bnxt_hwrm_nvm_get_dev_info(struct bnxt *bp,
+			       struct hwrm_nvm_get_dev_info_output *nvm_dev_info)
+{
+	struct hwrm_nvm_get_dev_info_output *resp = bp->hwrm_cmd_resp_addr;
+	struct hwrm_nvm_get_dev_info_input req = {0};
+	int rc;
+
+	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_DEV_INFO, -1, -1);
+	mutex_lock(&bp->hwrm_cmd_lock);
+	rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+	if (!rc)
+		memcpy(nvm_dev_info, resp, sizeof(*resp));
+	mutex_unlock(&bp->hwrm_cmd_lock);
+	return rc;
+}
+
 static void bnxt_print_admin_err(struct bnxt *bp)
 {
 	netdev_info(bp->dev, "PF does not have admin privileges to flash or reset the device\n");
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h
index 34f44ddfad79..fa6fbde52bea 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h
@@ -92,6 +92,8 @@ u32 bnxt_get_rxfh_indir_size(struct net_device *dev);
 u32 _bnxt_fw_to_ethtool_adv_spds(u16, u8);
 u32 bnxt_fw_to_ethtool_speed(u16);
 u16 bnxt_get_fw_auto_link_speeds(u32);
+int bnxt_hwrm_nvm_get_dev_info(struct bnxt *bp,
+			       struct hwrm_nvm_get_dev_info_output *nvm_dev_info);
 int bnxt_flash_package_from_file(struct net_device *dev, const char *filename,
 				 u32 install_type);
 void bnxt_ethtool_init(struct bnxt *bp);
-- 
2.18.1


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