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From:   Vikas Gupta <vikas.gupta@broadcom.com>
To:     jiri@nvidia.com, kuba@kernel.org
Cc:     netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        davem@davemloft.net, dsahern@kernel.org,
        stephen@networkplumber.org, edumazet@google.com,
        michael.chan@broadcom.com, andrew.gospodarek@broadcom.com,
        Vikas Gupta <vikas.gupta@broadcom.com>
Subject: [PATCH net-next v1 3/3] bnxt_en: implement callbacks for devlink selftests
Date:   Tue, 28 Jun 2022 22:12:41 +0530
Message-Id: <20220628164241.44360-4-vikas.gupta@broadcom.com>
In-Reply-To: <20220628164241.44360-1-vikas.gupta@broadcom.com>
References: <20220628164241.44360-1-vikas.gupta@broadcom.com>
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        boundary="00000000000033fb6705e284bd70"
Precedence: bulk

--00000000000033fb6705e284bd70

Add callbacks
=============
.selftests_show: populates flash test name.
.selftests_run: implements a flash selftest.

Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
---
 .../net/ethernet/broadcom/bnxt/bnxt_devlink.c | 66 +++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
index 3528ce9849e6..232e9b1ff1a9 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
@@ -20,6 +20,8 @@
 #include "bnxt_ulp.h"
 #include "bnxt_ptp.h"
 #include "bnxt_coredump.h"
+#include "bnxt_nvm_defs.h"
+#include "bnxt_ethtool.h"
 
 static void __bnxt_fw_recover(struct bnxt *bp)
 {
@@ -610,6 +612,67 @@ static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action acti
 	return rc;
 }
 
+static bool bnxt_nvm_test(struct bnxt *bp, struct netlink_ext_ack *extack)
+{
+	u32 datalen;
+	u16 index;
+	u8 *buf;
+
+	if (bnxt_find_nvram_item(bp->dev, BNX_DIR_TYPE_VPD,
+				 BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE,
+				 &index, NULL, &datalen) || !datalen) {
+		NL_SET_ERR_MSG_MOD(extack, "nvm test vpd entry error");
+		return false;
+	}
+
+	buf = kzalloc(datalen, GFP_KERNEL);
+	if (!buf) {
+		NL_SET_ERR_MSG_MOD(extack, "not sufficient memory for nvm test");
+		return false;
+	}
+
+	if (bnxt_get_nvram_item(bp->dev, index, 0, datalen, buf)) {
+		NL_SET_ERR_MSG_MOD(extack, "nvm test vpd read error");
+		goto err;
+	}
+
+	if (bnxt_flash_nvram(bp->dev, BNX_DIR_TYPE_VPD, BNX_DIR_ORDINAL_FIRST,
+			     BNX_DIR_EXT_NONE, 0, 0, buf, datalen)) {
+		NL_SET_ERR_MSG_MOD(extack, "nvm test vpd write error");
+		goto err;
+	}
+
+	return true;
+
+err:
+	kfree(buf);
+	return false;
+}
+
+static int bnxt_dl_selftests_show(struct devlink *dl, struct sk_buff *msg,
+				  struct netlink_ext_ack *extack)
+{
+	return devlink_selftest_name_put(msg, DEVLINK_SELFTEST_FLASH_TEST_NAME);
+}
+
+static int bnxt_dl_selftests_run(struct devlink *dl, struct sk_buff *msg,
+				 u32 test_mask, struct netlink_ext_ack *extack)
+{
+	struct bnxt *bp = bnxt_get_bp_from_dl(dl);
+	struct devlink_selftest_exec_info test;
+	int rc;
+
+	if (test_mask & DEVLINK_SELFTEST_FLASH) {
+		test.name = DEVLINK_SELFTEST_FLASH_TEST_NAME;
+		test.result = bnxt_nvm_test(bp, extack);
+		rc = devlink_selftest_result_put(msg, &test);
+		if (rc)
+			return rc;
+	}
+
+	return 0;
+}
+
 static const struct devlink_ops bnxt_dl_ops = {
 #ifdef CONFIG_BNXT_SRIOV
 	.eswitch_mode_set = bnxt_dl_eswitch_mode_set,
@@ -622,6 +685,8 @@ static const struct devlink_ops bnxt_dl_ops = {
 	.reload_limits	  = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET),
 	.reload_down	  = bnxt_dl_reload_down,
 	.reload_up	  = bnxt_dl_reload_up,
+	.selftests_show	  = bnxt_dl_selftests_show,
+	.selftests_run	  = bnxt_dl_selftests_run,
 };
 
 static const struct devlink_ops bnxt_vf_dl_ops;
@@ -1091,6 +1156,7 @@ static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id,
 	return bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
 }
 
+
 static int bnxt_dl_msix_validate(struct devlink *dl, u32 id,
 				 union devlink_param_value val,
 				 struct netlink_ext_ack *extack)
-- 
2.31.1


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