diff options
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmvnic.c | 112 |
1 files changed, 97 insertions, 15 deletions
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index dc1b88116330..4ff6a515c061 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -159,6 +159,40 @@ static long h_reg_sub_crq(unsigned long unit_address, unsigned long token, return rc; } +/** + * ibmvnic_wait_for_completion - Check device state and wait for completion + * @adapter: private device data + * @comp_done: completion structure to wait for + * @timeout: time to wait in milliseconds + * + * Wait for a completion signal or until the timeout limit is reached + * while checking that the device is still active. + */ +static int ibmvnic_wait_for_completion(struct ibmvnic_adapter *adapter, + struct completion *comp_done, + unsigned long timeout) +{ + struct net_device *netdev; + unsigned long div_timeout; + u8 retry; + + netdev = adapter->netdev; + retry = 5; + div_timeout = msecs_to_jiffies(timeout / retry); + while (true) { + if (!adapter->crq.active) { + netdev_err(netdev, "Device down!\n"); + return -ENODEV; + } + if (retry--) + break; + if (wait_for_completion_timeout(comp_done, div_timeout)) + return 0; + } + netdev_err(netdev, "Operation timed out.\n"); + return -ETIMEDOUT; +} + static int alloc_long_term_buff(struct ibmvnic_adapter *adapter, struct ibmvnic_long_term_buff *ltb, int size) { @@ -183,7 +217,15 @@ static int alloc_long_term_buff(struct ibmvnic_adapter *adapter, dma_free_coherent(dev, ltb->size, ltb->buff, ltb->addr); return rc; } - wait_for_completion(&adapter->fw_done); + + rc = ibmvnic_wait_for_completion(adapter, &adapter->fw_done, 10000); + if (rc) { + dev_err(dev, + "Long term map request aborted or timed out,rc = %d\n", + rc); + dma_free_coherent(dev, ltb->size, ltb->buff, ltb->addr); + return rc; + } if (adapter->fw_done_rc) { dev_err(dev, "Couldn't map long term buffer,rc = %d\n", @@ -211,6 +253,7 @@ static void free_long_term_buff(struct ibmvnic_adapter *adapter, static int reset_long_term_buff(struct ibmvnic_adapter *adapter, struct ibmvnic_long_term_buff *ltb) { + struct device *dev = &adapter->vdev->dev; int rc; memset(ltb->buff, 0, ltb->size); @@ -219,10 +262,16 @@ static int reset_long_term_buff(struct ibmvnic_adapter *adapter, rc = send_request_map(adapter, ltb->addr, ltb->size, ltb->map_id); if (rc) return rc; - wait_for_completion(&adapter->fw_done); + + rc = ibmvnic_wait_for_completion(adapter, &adapter->fw_done, 10000); + if (rc) { + dev_info(dev, + "Reset failed, long term map request timed out or aborted\n"); + return rc; + } if (adapter->fw_done_rc) { - dev_info(&adapter->vdev->dev, + dev_info(dev, "Reset failed, attempting to free and reallocate buffer\n"); free_long_term_buff(adapter, ltb); return alloc_long_term_buff(adapter, ltb, ltb->size); @@ -949,7 +998,12 @@ static int ibmvnic_get_vpd(struct ibmvnic_adapter *adapter) rc = ibmvnic_send_crq(adapter, &crq); if (rc) return rc; - wait_for_completion(&adapter->fw_done); + + rc = ibmvnic_wait_for_completion(adapter, &adapter->fw_done, 10000); + if (rc) { + dev_err(dev, "Could not retrieve VPD size, rc = %d\n", rc); + return rc; + } if (!adapter->vpd->len) return -ENODATA; @@ -987,7 +1041,14 @@ static int ibmvnic_get_vpd(struct ibmvnic_adapter *adapter) adapter->vpd->buff = NULL; return rc; } - wait_for_completion(&adapter->fw_done); + + rc = ibmvnic_wait_for_completion(adapter, &adapter->fw_done, 10000); + if (rc) { + dev_err(dev, "Unable to retrieve VPD, rc = %d\n", rc); + kfree(adapter->vpd->buff); + adapter->vpd->buff = NULL; + return rc; + } return 0; } @@ -1696,9 +1757,9 @@ static int __ibmvnic_set_mac(struct net_device *netdev, u8 *dev_addr) goto err; } - wait_for_completion(&adapter->fw_done); + rc = ibmvnic_wait_for_completion(adapter, &adapter->fw_done, 10000); /* netdev->dev_addr is changed in handle_change_mac_rsp function */ - if (adapter->fw_done_rc) { + if (rc || adapter->fw_done_rc) { rc = -EIO; goto err; } @@ -2319,9 +2380,16 @@ static int wait_for_reset(struct ibmvnic_adapter *adapter) reinit_completion(&adapter->reset_done); adapter->wait_for_reset = true; rc = ibmvnic_reset(adapter, VNIC_RESET_CHANGE_PARAM); - if (rc) - return rc; - wait_for_completion(&adapter->reset_done); + + if (rc) { + ret = rc; + goto out; + } + rc = ibmvnic_wait_for_completion(adapter, &adapter->reset_done, 60000); + if (rc) { + ret = -ENODEV; + goto out; + } ret = 0; if (adapter->reset_done_rc) { @@ -2335,10 +2403,18 @@ static int wait_for_reset(struct ibmvnic_adapter *adapter) reinit_completion(&adapter->reset_done); adapter->wait_for_reset = true; rc = ibmvnic_reset(adapter, VNIC_RESET_CHANGE_PARAM); - if (rc) - return ret; - wait_for_completion(&adapter->reset_done); + if (rc) { + ret = rc; + goto out; + } + rc = ibmvnic_wait_for_completion(adapter, &adapter->reset_done, + 60000); + if (rc) { + ret = -ENODEV; + goto out; + } } +out: adapter->wait_for_reset = false; return ret; @@ -2607,7 +2683,9 @@ static void ibmvnic_get_ethtool_stats(struct net_device *dev, rc = ibmvnic_send_crq(adapter, &crq); if (rc) return; - wait_for_completion(&adapter->stats_done); + rc = ibmvnic_wait_for_completion(adapter, &adapter->stats_done, 10000); + if (rc) + return; for (i = 0; i < ARRAY_SIZE(ibmvnic_stats); i++) data[i] = be64_to_cpu(IBMVNIC_GET_STAT(adapter, @@ -4412,7 +4490,11 @@ static int send_query_phys_parms(struct ibmvnic_adapter *adapter) rc = ibmvnic_send_crq(adapter, &crq); if (rc) return rc; - wait_for_completion(&adapter->fw_done); + + rc = ibmvnic_wait_for_completion(adapter, &adapter->fw_done, 10000); + if (rc) + return rc; + return adapter->fw_done_rc ? -EIO : 0; } |