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[net-next,4/5] be2net: Fix EEH error reset before a flash dump completes

Message ID 3533eec3-eb4d-4629-a4db-ee594cf13274@exht1.ad.emulex.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Somnath Kotur May 2, 2012, 1:41 p.m. UTC 
An EEH error can cause the FW to trigger a flash debug dump.
Resetting the card while flash dump is in progress can cause it not to recover.
Wait for it to finish before letting EEH flow to reset the card.

Signed-off-by: Sathya Perla <Sathya.Perla@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
---
 drivers/net/ethernet/emulex/benet/be_main.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
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Patch

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index b7bc905..6d5d30b 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -3821,6 +3821,11 @@  static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
 
 	pci_disable_device(pdev);
 
+	/* The error could cause the FW to trigger a flash debug dump.
+	 * Resetting the card while flash dump is in progress
+	 * can cause it not to recover; wait for it to finish
+	 */
+	ssleep(30);
 	return PCI_ERS_RESULT_NEED_RESET;
 }