Merge branch 'bnxt_en-shutdown-and-kexec-kdump-related-fixes'

36a44bcd · David S. Miller <[email protected]> · 2020-02-20 16:05:42 -08:00

Michael Chan says:

====================
bnxt_en: shutdown and kexec/kdump related fixes.

2 small patches to fix kexec shutdown and kdump kernel driver init issues.
====================

Signed-off-by: David S. Miller <[email protected]>

Commit: 36a44bcdd8df092d76c11bc213e81c5817d4e302
Parents: 3a20773b · 8743db4a

Merge commit. Changes below are compared with the first parent: 3a20773b.

Changes

1 files changed · +10 −2

File	Status	Add	Del	Content
drivers/net/ethernet/broadcom/bnxt/bnxt.c	modified	+10	−2	View file

drivers/net/ethernet/broadcom/bnxt/bnxt.c

View file

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 597e6fd..fd6e0e4 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -11786,6 +11786,14 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (version_printed++ == 0)
 		pr_info("%s", version);
 
+	/* Clear any pending DMA transactions from crash kernel
+	 * while loading driver in capture kernel.
+	 */
+	if (is_kdump_kernel()) {
+		pci_clear_master(pdev);
+		pcie_flr(pdev);
+	}
+
 	max_irqs = bnxt_get_max_irq(pdev);
 	dev = alloc_etherdev_mq(sizeof(*bp), max_irqs);
 	if (!dev)
@@ -11983,10 +11991,10 @@ static void bnxt_shutdown(struct pci_dev *pdev)
 		dev_close(dev);
 
 	bnxt_ulp_shutdown(bp);
+	bnxt_clear_int_mode(bp);
+	pci_disable_device(pdev);
 
 	if (system_state == SYSTEM_POWER_OFF) {
-		bnxt_clear_int_mode(bp);
-		pci_disable_device(pdev);
 		pci_wake_from_d3(pdev, bp->wol);
 		pci_set_power_state(pdev, PCI_D3hot);
 	}