be2net: replenish when posting to rx-queue is starved in out of mem conditions
This is a patch to replenish the rx-queue when it is in a starved state (due to out-of-mem conditions) Signed-off-by: Sathya Perla <sathyap@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -194,6 +194,7 @@ struct be_adapter {
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struct be_eq_obj rx_eq;
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struct be_eq_obj rx_eq;
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struct be_rx_obj rx_obj;
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struct be_rx_obj rx_obj;
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u32 big_page_size; /* Compounded page size shared by rx wrbs */
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u32 big_page_size; /* Compounded page size shared by rx wrbs */
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bool rx_post_starved; /* Zero rx frags have been posted to BE */
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struct vlan_group *vlan_grp;
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struct vlan_group *vlan_grp;
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u16 num_vlans;
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u16 num_vlans;
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@ -273,26 +273,6 @@ static void be_rx_eqd_update(struct be_adapter *adapter)
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rx_eq->cur_eqd = eqd;
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rx_eq->cur_eqd = eqd;
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}
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}
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static void be_worker(struct work_struct *work)
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{
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struct be_adapter *adapter =
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container_of(work, struct be_adapter, work.work);
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int status;
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/* Check link */
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be_link_status_update(adapter);
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/* Get Stats */
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status = be_cmd_get_stats(&adapter->ctrl, &adapter->stats.cmd);
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if (!status)
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netdev_stats_update(adapter);
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/* Set EQ delay */
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be_rx_eqd_update(adapter);
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schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
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}
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static struct net_device_stats *be_get_stats(struct net_device *dev)
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static struct net_device_stats *be_get_stats(struct net_device *dev)
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{
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{
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struct be_adapter *adapter = netdev_priv(dev);
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struct be_adapter *adapter = netdev_priv(dev);
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@ -900,8 +880,11 @@ static void be_post_rx_frags(struct be_adapter *adapter)
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page_info->last_page_user = true;
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page_info->last_page_user = true;
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if (posted) {
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if (posted) {
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be_rxq_notify(&adapter->ctrl, rxq->id, posted);
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atomic_add(posted, &rxq->used);
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atomic_add(posted, &rxq->used);
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be_rxq_notify(&adapter->ctrl, rxq->id, posted);
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} else if (atomic_read(&rxq->used) == 0) {
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/* Let be_worker replenish when memory is available */
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adapter->rx_post_starved = true;
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}
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}
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return;
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return;
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@ -1305,6 +1288,31 @@ int be_poll_tx(struct napi_struct *napi, int budget)
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return 1;
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return 1;
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}
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}
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static void be_worker(struct work_struct *work)
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{
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struct be_adapter *adapter =
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container_of(work, struct be_adapter, work.work);
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int status;
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/* Check link */
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be_link_status_update(adapter);
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/* Get Stats */
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status = be_cmd_get_stats(&adapter->ctrl, &adapter->stats.cmd);
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if (!status)
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netdev_stats_update(adapter);
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/* Set EQ delay */
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be_rx_eqd_update(adapter);
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if (adapter->rx_post_starved) {
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adapter->rx_post_starved = false;
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be_post_rx_frags(adapter);
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}
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schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
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}
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static void be_msix_enable(struct be_adapter *adapter)
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static void be_msix_enable(struct be_adapter *adapter)
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{
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{
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int i, status;
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int i, status;
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