From: Michael Chan <michael.chan@broadcom.com>
Date: Sun, 20 Feb 2022 09:05:48 +0000 (-0500)
Subject: bnxt_en: Fix offline ethtool selftest with RDMA enabled
X-Git-Tag: v5.17-rc6~29^2~22^2~5
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6758f937669dba14c6aac7ca004edda42ec1b18d;p=thirdparty%2Flinux.git

bnxt_en: Fix offline ethtool selftest with RDMA enabled

For offline (destructive) self tests, we need to stop the RDMA driver
first.  Otherwise, the RDMA driver will run into unrecoverable errors
when destructive firmware tests are being performed.

The irq_re_init parameter used in the half close and half open
sequence when preparing the NIC for offline tests should be set to
true because the RDMA driver will free all IRQs before the offline
tests begin.

Fixes: 55fd0cf320c3 ("bnxt_en: Add external loopback test to ethtool selftest.")
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Reviewed-by: Ben Li <ben.li@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 4f94136a011a1..23bbb1c5812df 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -10330,12 +10330,12 @@ int bnxt_half_open_nic(struct bnxt *bp)
 		goto half_open_err;
 	}
 
-	rc = bnxt_alloc_mem(bp, false);
+	rc = bnxt_alloc_mem(bp, true);
 	if (rc) {
 		netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc);
 		goto half_open_err;
 	}
-	rc = bnxt_init_nic(bp, false);
+	rc = bnxt_init_nic(bp, true);
 	if (rc) {
 		netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc);
 		goto half_open_err;
@@ -10344,7 +10344,7 @@ int bnxt_half_open_nic(struct bnxt *bp)
 
 half_open_err:
 	bnxt_free_skbs(bp);
-	bnxt_free_mem(bp, false);
+	bnxt_free_mem(bp, true);
 	dev_close(bp->dev);
 	return rc;
 }
@@ -10354,9 +10354,9 @@ half_open_err:
  */
 void bnxt_half_close_nic(struct bnxt *bp)
 {
-	bnxt_hwrm_resource_free(bp, false, false);
+	bnxt_hwrm_resource_free(bp, false, true);
 	bnxt_free_skbs(bp);
-	bnxt_free_mem(bp, false);
+	bnxt_free_mem(bp, true);
 }
 
 void bnxt_reenable_sriov(struct bnxt *bp)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index e195f4a669d8d..a85b18858b324 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -25,6 +25,7 @@
 #include "bnxt_hsi.h"
 #include "bnxt.h"
 #include "bnxt_hwrm.h"
+#include "bnxt_ulp.h"
 #include "bnxt_xdp.h"
 #include "bnxt_ptp.h"
 #include "bnxt_ethtool.h"
@@ -3551,9 +3552,12 @@ static void bnxt_self_test(struct net_device *dev, struct ethtool_test *etest,
 	if (!offline) {
 		bnxt_run_fw_tests(bp, test_mask, &test_results);
 	} else {
-		rc = bnxt_close_nic(bp, false, false);
-		if (rc)
+		bnxt_ulp_stop(bp);
+		rc = bnxt_close_nic(bp, true, false);
+		if (rc) {
+			bnxt_ulp_start(bp, rc);
 			return;
+		}
 		bnxt_run_fw_tests(bp, test_mask, &test_results);
 
 		buf[BNXT_MACLPBK_TEST_IDX] = 1;
@@ -3563,6 +3567,7 @@ static void bnxt_self_test(struct net_device *dev, struct ethtool_test *etest,
 		if (rc) {
 			bnxt_hwrm_mac_loopback(bp, false);
 			etest->flags |= ETH_TEST_FL_FAILED;
+			bnxt_ulp_start(bp, rc);
 			return;
 		}
 		if (bnxt_run_loopback(bp))
@@ -3588,7 +3593,8 @@ static void bnxt_self_test(struct net_device *dev, struct ethtool_test *etest,
 		}
 		bnxt_hwrm_phy_loopback(bp, false, false);
 		bnxt_half_close_nic(bp);
-		rc = bnxt_open_nic(bp, false, true);
+		rc = bnxt_open_nic(bp, true, true);
+		bnxt_ulp_start(bp, rc);
 	}
 	if (rc || bnxt_test_irq(bp)) {
 		buf[BNXT_IRQ_TEST_IDX] = 1;