cxgb3 - fix EEH

Reset the chip when the PCI link goes down.
Preserve the napi structure when a sge qset's resources are freed.
Replay only HW initialization when the chip comes out of reset.

Signed-off-by: Divy Le ray <divy@chelsio.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index d67fc10a6b36..3a3127216791 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2430,9 +2430,6 @@ static pci_ers_result_t t3_io_error_detected(struct pci_dev *pdev,
             test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map))
                 offload_close(&adapter->tdev);
 
-        /* Free sge resources */
-        t3_free_sge_resources(adapter);
-
         adapter->flags &= ~FULL_INIT_DONE;
 
         pci_disable_device(pdev);
@@ -2457,8 +2454,12 @@ static pci_ers_result_t t3_io_slot_reset(struct pci_dev *pdev)
                 goto err;
         }
         pci_set_master(pdev);
+        pci_restore_state(pdev);
+
+        /* Free sge resources */
+        t3_free_sge_resources(adapter);
 
-        if (t3_prep_adapter(adapter, adapter->params.info, 1))
+        if (t3_replay_prep_adapter(adapter))
                 goto err;
 
         return PCI_ERS_RESULT_RECOVERED;
@@ -2610,6 +2611,7 @@ static int __devinit init_one(struct pci_dev *pdev,
         }
 
         pci_set_master(pdev);
+        pci_save_state(pdev);
 
         mmio_start = pci_resource_start(pdev, 0);
         mmio_len = pci_resource_len(pdev, 0);