Thread (6 messages) flat view 6 messages, 2 authors, 2017-03-10
STALE3434d

[PATCH net 1/4] bnxt_en: Perform function reset earlier during probe.

From: Michael Chan <michael.chan@broadcom.com>
Date: 2017-03-08 23:46:03
Subsystem: broadcom bnxt_en 50 gigabit ethernet driver, networking drivers, the rest · Maintainers: Michael Chan, Pavan Chebbi, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

The firmware call to do function reset is done too late.  It is causing
the rings that have been reserved to be freed.  In NPAR mode, this bug
is causing us to run out of rings.

Fixes: 391be5c27364 ("bnxt_en: Implement new scheme to reserve tx rings.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 235733e..33293ac 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -7444,6 +7444,10 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (rc)
 		goto init_err_pci_clean;
 
+	rc = bnxt_hwrm_func_reset(bp);
+	if (rc)
+		goto init_err_pci_clean;
+
 	bnxt_hwrm_fw_set_time(bp);
 
 	dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
@@ -7554,10 +7558,6 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (rc)
 		goto init_err_pci_clean;
 
-	rc = bnxt_hwrm_func_reset(bp);
-	if (rc)
-		goto init_err_pci_clean;
-
 	rc = bnxt_init_int_mode(bp);
 	if (rc)
 		goto init_err_pci_clean;
-- 
1.8.3.1
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