netdev - [PATCH net-next 2/2] bnxt_en: Add device capabilities to devlink info

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Date:   Mon,  2 Aug 2021 09:57:40 +0530
From:   Kalesh A P <kalesh-anakkur.purayil@...adcom.com>
To:     davem@...emloft.net, kuba@...nel.org, jiri@...dia.com
Cc:     netdev@...r.kernel.org, edwin.peer@...adcom.com,
        michael.chan@...adcom.com
Subject: [PATCH net-next 2/2] bnxt_en: Add device capabilities to devlink info_get cb

From: Kalesh AP <kalesh-anakkur.purayil@...adcom.com>

HWRM_VER_GET and FUNC_QCAPS command response provides the support
to indicate various device capabilities.

Expose these details via the devlink info.

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@...adcom.com>
Reviewed-by: Edwin Peer <edwin.peer@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c | 31 +++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
index 64381be..0ae5f47 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
@@ -379,6 +379,25 @@ static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp,
 	return rc;
 }
 
+static int bnxt_dl_dev_capability_info_put(struct bnxt *bp, struct devlink_info_req *req)
+{
+	int rc;
+
+	if (bp->fw_cap & BNXT_FW_CAP_HOT_RESET) {
+		rc = devlink_info_device_capability_put(req, "hot_reset");
+		if (rc)
+			return rc;
+	}
+
+	if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) {
+		rc = devlink_info_device_capability_put(req, "error_recovery");
+		if (rc)
+			return rc;
+	}
+
+	return 0;
+}
+
 static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req,
 			    enum bnxt_dl_version_type type, const char *key,
 			    char *buf)
@@ -557,8 +576,16 @@ static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
 	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);
-	return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
-				DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
+	rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
+			      DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
+	if (rc)
+		return rc;
+
+	rc = bnxt_dl_dev_capability_info_put(bp, req);
+	if (rc)
+		return rc;
+
+	return 0;
 }
 
 static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
-- 
2.10.1