gve: Add stats for gve.
Sample output of "ethtool -S <interface-name>" with 1 RX queue and 1 TX
queue:
NIC statistics:
rx_packets: 1039
tx_packets: 37
rx_bytes: 822071
tx_bytes: 4100
rx_dropped: 0
tx_dropped: 0
tx_timeouts: 0
rx_skb_alloc_fail: 0
rx_buf_alloc_fail: 0
rx_desc_err_dropped_pkt: 0
interface_up_cnt: 1
interface_down_cnt: 0
reset_cnt: 0
page_alloc_fail: 0
dma_mapping_error: 0
rx_posted_desc[0]: 1365
rx_completed_desc[0]: 341
rx_bytes[0]: 215094
rx_dropped_pkt[0]: 0
rx_copybreak_pkt[0]: 3
rx_copied_pkt[0]: 3
tx_posted_desc[0]: 6
tx_completed_desc[0]: 6
tx_bytes[0]: 420
tx_wake[0]: 0
tx_stop[0]: 0
tx_event_counter[0]: 6
adminq_prod_cnt: 34
adminq_cmd_fail: 0
adminq_timeouts: 0
adminq_describe_device_cnt: 1
adminq_cfg_device_resources_cnt: 1
adminq_register_page_list_cnt: 16
adminq_unregister_page_list_cnt: 0
adminq_create_tx_queue_cnt: 8
adminq_create_rx_queue_cnt: 8
adminq_destroy_tx_queue_cnt: 0
adminq_destroy_rx_queue_cnt: 0
adminq_dcfg_device_resources_cnt: 0
adminq_set_driver_parameter_cnt: 0
Reviewed-by: Yangchun Fu <yangchun@google.com>
Signed-off-by: Kuo Zhao <kuozhao@google.com>
Signed-off-by: David Awogbemila <awogbemila@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kuo Zhao
David S. Miller
parent
d5f7543c86
commit
433e274b8f
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@ -71,6 +71,11 @@ struct gve_rx_ring {
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u32 cnt; /* free-running total number of completed packets */
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u32 fill_cnt; /* free-running total number of descs and buffs posted */
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u32 mask; /* masks the cnt and fill_cnt to the size of the ring */
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u64 rx_copybreak_pkt; /* free-running count of copybreak packets */
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u64 rx_copied_pkt; /* free-running total number of copied packets */
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u64 rx_skb_alloc_fail; /* free-running count of skb alloc fails */
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u64 rx_buf_alloc_fail; /* free-running count of buffer alloc fails */
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u64 rx_desc_err_dropped_pkt; /* free-running count of packets dropped by descriptor error */
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u32 q_num; /* queue index */
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u32 ntfy_id; /* notification block index */
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struct gve_queue_resources *q_resources; /* head and tail pointer idx */
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@ -202,6 +207,26 @@ struct gve_priv {
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dma_addr_t adminq_bus_addr;
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u32 adminq_mask; /* masks prod_cnt to adminq size */
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u32 adminq_prod_cnt; /* free-running count of AQ cmds executed */
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u32 adminq_cmd_fail; /* free-running count of AQ cmds failed */
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u32 adminq_timeouts; /* free-running count of AQ cmds timeouts */
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/* free-running count of per AQ cmd executed */
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u32 adminq_describe_device_cnt;
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u32 adminq_cfg_device_resources_cnt;
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u32 adminq_register_page_list_cnt;
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u32 adminq_unregister_page_list_cnt;
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u32 adminq_create_tx_queue_cnt;
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u32 adminq_create_rx_queue_cnt;
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u32 adminq_destroy_tx_queue_cnt;
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u32 adminq_destroy_rx_queue_cnt;
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u32 adminq_dcfg_device_resources_cnt;
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u32 adminq_set_driver_parameter_cnt;
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/* Global stats */
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u32 interface_up_cnt; /* count of times interface turned up since last reset */
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u32 interface_down_cnt; /* count of times interface turned down since last reset */
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u32 reset_cnt; /* count of reset */
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u32 page_alloc_fail; /* count of page alloc fails */
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u32 dma_mapping_error; /* count of dma mapping errors */
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struct workqueue_struct *gve_wq;
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struct work_struct service_task;
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@ -426,7 +451,8 @@ static inline bool gve_can_recycle_pages(struct net_device *dev)
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}
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/* buffers */
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int gve_alloc_page(struct device *dev, struct page **page, dma_addr_t *dma,
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int gve_alloc_page(struct gve_priv *priv, struct device *dev,
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struct page **page, dma_addr_t *dma,
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enum dma_data_direction);
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void gve_free_page(struct device *dev, struct page *page, dma_addr_t dma,
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enum dma_data_direction);
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@ -23,6 +23,18 @@ int gve_adminq_alloc(struct device *dev, struct gve_priv *priv)
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priv->adminq_mask = (PAGE_SIZE / sizeof(union gve_adminq_command)) - 1;
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priv->adminq_prod_cnt = 0;
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priv->adminq_cmd_fail = 0;
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priv->adminq_timeouts = 0;
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priv->adminq_describe_device_cnt = 0;
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priv->adminq_cfg_device_resources_cnt = 0;
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priv->adminq_register_page_list_cnt = 0;
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priv->adminq_unregister_page_list_cnt = 0;
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priv->adminq_create_tx_queue_cnt = 0;
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priv->adminq_create_rx_queue_cnt = 0;
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priv->adminq_destroy_tx_queue_cnt = 0;
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priv->adminq_destroy_rx_queue_cnt = 0;
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priv->adminq_dcfg_device_resources_cnt = 0;
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priv->adminq_set_driver_parameter_cnt = 0;
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/* Setup Admin queue with the device */
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iowrite32be(priv->adminq_bus_addr / PAGE_SIZE,
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@ -81,17 +93,18 @@ static bool gve_adminq_wait_for_cmd(struct gve_priv *priv, u32 prod_cnt)
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return false;
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}
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static int gve_adminq_parse_err(struct device *dev, u32 status)
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static int gve_adminq_parse_err(struct gve_priv *priv, u32 status)
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{
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if (status != GVE_ADMINQ_COMMAND_PASSED &&
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status != GVE_ADMINQ_COMMAND_UNSET)
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dev_err(dev, "AQ command failed with status %d\n", status);
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status != GVE_ADMINQ_COMMAND_UNSET) {
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dev_err(&priv->pdev->dev, "AQ command failed with status %d\n", status);
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priv->adminq_cmd_fail++;
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}
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switch (status) {
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case GVE_ADMINQ_COMMAND_PASSED:
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return 0;
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case GVE_ADMINQ_COMMAND_UNSET:
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dev_err(dev, "parse_aq_err: err and status both unset, this should not be possible.\n");
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dev_err(&priv->pdev->dev, "parse_aq_err: err and status both unset, this should not be possible.\n");
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return -EINVAL;
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case GVE_ADMINQ_COMMAND_ERROR_ABORTED:
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case GVE_ADMINQ_COMMAND_ERROR_CANCELLED:
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@ -116,7 +129,7 @@ static int gve_adminq_parse_err(struct device *dev, u32 status)
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case GVE_ADMINQ_COMMAND_ERROR_UNIMPLEMENTED:
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return -ENOTSUPP;
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default:
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dev_err(dev, "parse_aq_err: unknown status code %d\n", status);
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dev_err(&priv->pdev->dev, "parse_aq_err: unknown status code %d\n", status);
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return -EINVAL;
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}
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}
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@ -130,22 +143,60 @@ int gve_adminq_execute_cmd(struct gve_priv *priv,
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union gve_adminq_command *cmd;
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u32 status = 0;
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u32 prod_cnt;
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u32 opcode;
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cmd = &priv->adminq[priv->adminq_prod_cnt & priv->adminq_mask];
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priv->adminq_prod_cnt++;
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prod_cnt = priv->adminq_prod_cnt;
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memcpy(cmd, cmd_orig, sizeof(*cmd_orig));
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opcode = be32_to_cpu(READ_ONCE(cmd->opcode));
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switch (opcode) {
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case GVE_ADMINQ_DESCRIBE_DEVICE:
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priv->adminq_describe_device_cnt++;
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break;
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case GVE_ADMINQ_CONFIGURE_DEVICE_RESOURCES:
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priv->adminq_cfg_device_resources_cnt++;
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break;
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case GVE_ADMINQ_REGISTER_PAGE_LIST:
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priv->adminq_register_page_list_cnt++;
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break;
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case GVE_ADMINQ_UNREGISTER_PAGE_LIST:
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priv->adminq_unregister_page_list_cnt++;
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break;
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case GVE_ADMINQ_CREATE_TX_QUEUE:
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priv->adminq_create_tx_queue_cnt++;
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break;
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case GVE_ADMINQ_CREATE_RX_QUEUE:
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priv->adminq_create_rx_queue_cnt++;
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break;
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case GVE_ADMINQ_DESTROY_TX_QUEUE:
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priv->adminq_destroy_tx_queue_cnt++;
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break;
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case GVE_ADMINQ_DESTROY_RX_QUEUE:
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priv->adminq_destroy_rx_queue_cnt++;
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break;
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case GVE_ADMINQ_DECONFIGURE_DEVICE_RESOURCES:
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priv->adminq_dcfg_device_resources_cnt++;
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break;
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case GVE_ADMINQ_SET_DRIVER_PARAMETER:
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priv->adminq_set_driver_parameter_cnt++;
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break;
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default:
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dev_err(&priv->pdev->dev, "unknown AQ command opcode %d\n", opcode);
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}
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gve_adminq_kick_cmd(priv, prod_cnt);
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if (!gve_adminq_wait_for_cmd(priv, prod_cnt)) {
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dev_err(&priv->pdev->dev, "AQ command timed out, need to reset AQ\n");
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priv->adminq_timeouts++;
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return -ENOTRECOVERABLE;
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}
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memcpy(cmd_orig, cmd, sizeof(*cmd));
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status = be32_to_cpu(READ_ONCE(cmd->status));
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return gve_adminq_parse_err(&priv->pdev->dev, status);
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return gve_adminq_parse_err(priv, status);
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}
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/* The device specifies that the management vector can either be the first irq
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@ -34,17 +34,40 @@ static u32 gve_get_msglevel(struct net_device *netdev)
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static const char gve_gstrings_main_stats[][ETH_GSTRING_LEN] = {
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"rx_packets", "tx_packets", "rx_bytes", "tx_bytes",
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"rx_dropped", "tx_dropped", "tx_timeouts",
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"rx_skb_alloc_fail", "rx_buf_alloc_fail", "rx_desc_err_dropped_pkt",
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"interface_up_cnt", "interface_down_cnt", "reset_cnt",
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"page_alloc_fail", "dma_mapping_error",
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};
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static const char gve_gstrings_rx_stats[][ETH_GSTRING_LEN] = {
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"rx_posted_desc[%u]", "rx_completed_desc[%u]", "rx_bytes[%u]",
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"rx_dropped_pkt[%u]", "rx_copybreak_pkt[%u]", "rx_copied_pkt[%u]",
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};
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static const char gve_gstrings_tx_stats[][ETH_GSTRING_LEN] = {
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"tx_posted_desc[%u]", "tx_completed_desc[%u]", "tx_bytes[%u]",
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"tx_wake[%u]", "tx_stop[%u]", "tx_event_counter[%u]",
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};
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static const char gve_gstrings_adminq_stats[][ETH_GSTRING_LEN] = {
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"adminq_prod_cnt", "adminq_cmd_fail", "adminq_timeouts",
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"adminq_describe_device_cnt", "adminq_cfg_device_resources_cnt",
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"adminq_register_page_list_cnt", "adminq_unregister_page_list_cnt",
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"adminq_create_tx_queue_cnt", "adminq_create_rx_queue_cnt",
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"adminq_destroy_tx_queue_cnt", "adminq_destroy_rx_queue_cnt",
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"adminq_dcfg_device_resources_cnt", "adminq_set_driver_parameter_cnt",
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};
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#define GVE_MAIN_STATS_LEN ARRAY_SIZE(gve_gstrings_main_stats)
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#define NUM_GVE_TX_CNTS 5
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#define NUM_GVE_RX_CNTS 2
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#define GVE_ADMINQ_STATS_LEN ARRAY_SIZE(gve_gstrings_adminq_stats)
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#define NUM_GVE_TX_CNTS ARRAY_SIZE(gve_gstrings_tx_stats)
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#define NUM_GVE_RX_CNTS ARRAY_SIZE(gve_gstrings_rx_stats)
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static void gve_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
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{
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struct gve_priv *priv = netdev_priv(netdev);
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char *s = (char *)data;
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int i;
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int i, j;
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if (stringset != ETH_SS_STATS)
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return;
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@ -53,23 +76,21 @@ static void gve_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
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sizeof(gve_gstrings_main_stats));
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s += sizeof(gve_gstrings_main_stats);
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for (i = 0; i < priv->rx_cfg.num_queues; i++) {
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snprintf(s, ETH_GSTRING_LEN, "rx_desc_cnt[%u]", i);
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s += ETH_GSTRING_LEN;
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snprintf(s, ETH_GSTRING_LEN, "rx_desc_fill_cnt[%u]", i);
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s += ETH_GSTRING_LEN;
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for (j = 0; j < NUM_GVE_RX_CNTS; j++) {
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snprintf(s, ETH_GSTRING_LEN, gve_gstrings_rx_stats[j], i);
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s += ETH_GSTRING_LEN;
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}
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}
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for (i = 0; i < priv->tx_cfg.num_queues; i++) {
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snprintf(s, ETH_GSTRING_LEN, "tx_req[%u]", i);
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s += ETH_GSTRING_LEN;
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snprintf(s, ETH_GSTRING_LEN, "tx_done[%u]", i);
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s += ETH_GSTRING_LEN;
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snprintf(s, ETH_GSTRING_LEN, "tx_wake[%u]", i);
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s += ETH_GSTRING_LEN;
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snprintf(s, ETH_GSTRING_LEN, "tx_stop[%u]", i);
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s += ETH_GSTRING_LEN;
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snprintf(s, ETH_GSTRING_LEN, "tx_event_counter[%u]", i);
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s += ETH_GSTRING_LEN;
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for (j = 0; j < NUM_GVE_TX_CNTS; j++) {
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snprintf(s, ETH_GSTRING_LEN, gve_gstrings_tx_stats[j], i);
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s += ETH_GSTRING_LEN;
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}
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}
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memcpy(s, *gve_gstrings_adminq_stats,
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sizeof(gve_gstrings_adminq_stats));
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s += sizeof(gve_gstrings_adminq_stats);
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}
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static int gve_get_sset_count(struct net_device *netdev, int sset)
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@ -78,7 +99,7 @@ static int gve_get_sset_count(struct net_device *netdev, int sset)
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switch (sset) {
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case ETH_SS_STATS:
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return GVE_MAIN_STATS_LEN +
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return GVE_MAIN_STATS_LEN + GVE_ADMINQ_STATS_LEN +
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(priv->rx_cfg.num_queues * NUM_GVE_RX_CNTS) +
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(priv->tx_cfg.num_queues * NUM_GVE_TX_CNTS);
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default:
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@ -90,24 +111,40 @@ static void
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gve_get_ethtool_stats(struct net_device *netdev,
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struct ethtool_stats *stats, u64 *data)
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{
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struct gve_priv *priv = netdev_priv(netdev);
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u64 rx_pkts, rx_bytes, tx_pkts, tx_bytes;
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u64 tmp_rx_pkts, tmp_rx_bytes, tmp_rx_skb_alloc_fail, tmp_rx_buf_alloc_fail,
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tmp_rx_desc_err_dropped_pkt, tmp_tx_pkts, tmp_tx_bytes;
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u64 rx_buf_alloc_fail, rx_desc_err_dropped_pkt, rx_pkts,
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rx_skb_alloc_fail, rx_bytes, tx_pkts, tx_bytes;
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struct gve_priv *priv;
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unsigned int start;
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int ring;
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int i;
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ASSERT_RTNL();
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for (rx_pkts = 0, rx_bytes = 0, ring = 0;
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priv = netdev_priv(netdev);
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for (rx_pkts = 0, rx_bytes = 0, rx_skb_alloc_fail = 0,
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rx_buf_alloc_fail = 0, rx_desc_err_dropped_pkt = 0, ring = 0;
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ring < priv->rx_cfg.num_queues; ring++) {
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if (priv->rx) {
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do {
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struct gve_rx_ring *rx = &priv->rx[ring];
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start =
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u64_stats_fetch_begin(&priv->rx[ring].statss);
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rx_pkts += priv->rx[ring].rpackets;
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rx_bytes += priv->rx[ring].rbytes;
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tmp_rx_pkts = rx->rpackets;
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tmp_rx_bytes = rx->rbytes;
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tmp_rx_skb_alloc_fail = rx->rx_skb_alloc_fail;
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tmp_rx_buf_alloc_fail = rx->rx_buf_alloc_fail;
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tmp_rx_desc_err_dropped_pkt =
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rx->rx_desc_err_dropped_pkt;
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} while (u64_stats_fetch_retry(&priv->rx[ring].statss,
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start));
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rx_pkts += tmp_rx_pkts;
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rx_bytes += tmp_rx_bytes;
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rx_skb_alloc_fail += tmp_rx_skb_alloc_fail;
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rx_buf_alloc_fail += tmp_rx_buf_alloc_fail;
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rx_desc_err_dropped_pkt += tmp_rx_desc_err_dropped_pkt;
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}
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}
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for (tx_pkts = 0, tx_bytes = 0, ring = 0;
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@ -116,10 +153,12 @@ gve_get_ethtool_stats(struct net_device *netdev,
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do {
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start =
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u64_stats_fetch_begin(&priv->tx[ring].statss);
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tx_pkts += priv->tx[ring].pkt_done;
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tx_bytes += priv->tx[ring].bytes_done;
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tmp_tx_pkts = priv->tx[ring].pkt_done;
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tmp_tx_bytes = priv->tx[ring].bytes_done;
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} while (u64_stats_fetch_retry(&priv->tx[ring].statss,
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start));
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tx_pkts += tmp_tx_pkts;
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tx_bytes += tmp_tx_bytes;
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}
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}
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@ -128,9 +167,21 @@ gve_get_ethtool_stats(struct net_device *netdev,
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data[i++] = tx_pkts;
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data[i++] = rx_bytes;
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data[i++] = tx_bytes;
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/* Skip rx_dropped and tx_dropped */
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i += 2;
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/* total rx dropped packets */
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data[i++] = rx_skb_alloc_fail + rx_buf_alloc_fail +
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rx_desc_err_dropped_pkt;
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/* Skip tx_dropped */
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i++;
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data[i++] = priv->tx_timeo_cnt;
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data[i++] = rx_skb_alloc_fail;
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data[i++] = rx_buf_alloc_fail;
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data[i++] = rx_desc_err_dropped_pkt;
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data[i++] = priv->interface_up_cnt;
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data[i++] = priv->interface_down_cnt;
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data[i++] = priv->reset_cnt;
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data[i++] = priv->page_alloc_fail;
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data[i++] = priv->dma_mapping_error;
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i = GVE_MAIN_STATS_LEN;
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/* walk RX rings */
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@ -138,8 +189,25 @@ gve_get_ethtool_stats(struct net_device *netdev,
|
|||
for (ring = 0; ring < priv->rx_cfg.num_queues; ring++) {
|
||||
struct gve_rx_ring *rx = &priv->rx[ring];
|
||||
|
||||
data[i++] = rx->cnt;
|
||||
data[i++] = rx->fill_cnt;
|
||||
data[i++] = rx->cnt;
|
||||
do {
|
||||
start =
|
||||
u64_stats_fetch_begin(&priv->rx[ring].statss);
|
||||
tmp_rx_bytes = rx->rbytes;
|
||||
tmp_rx_skb_alloc_fail = rx->rx_skb_alloc_fail;
|
||||
tmp_rx_buf_alloc_fail = rx->rx_buf_alloc_fail;
|
||||
tmp_rx_desc_err_dropped_pkt =
|
||||
rx->rx_desc_err_dropped_pkt;
|
||||
} while (u64_stats_fetch_retry(&priv->rx[ring].statss,
|
||||
start));
|
||||
data[i++] = tmp_rx_bytes;
|
||||
/* rx dropped packets */
|
||||
data[i++] = tmp_rx_skb_alloc_fail +
|
||||
tmp_rx_buf_alloc_fail +
|
||||
tmp_rx_desc_err_dropped_pkt;
|
||||
data[i++] = rx->rx_copybreak_pkt;
|
||||
data[i++] = rx->rx_copied_pkt;
|
||||
}
|
||||
} else {
|
||||
i += priv->rx_cfg.num_queues * NUM_GVE_RX_CNTS;
|
||||
|
|
@ -151,6 +219,13 @@ gve_get_ethtool_stats(struct net_device *netdev,
|
|||
|
||||
data[i++] = tx->req;
|
||||
data[i++] = tx->done;
|
||||
do {
|
||||
start =
|
||||
u64_stats_fetch_begin(&priv->tx[ring].statss);
|
||||
tmp_tx_bytes = tx->bytes_done;
|
||||
} while (u64_stats_fetch_retry(&priv->tx[ring].statss,
|
||||
start));
|
||||
data[i++] = tmp_tx_bytes;
|
||||
data[i++] = tx->wake_queue;
|
||||
data[i++] = tx->stop_queue;
|
||||
data[i++] = be32_to_cpu(gve_tx_load_event_counter(priv,
|
||||
|
|
@ -159,6 +234,20 @@ gve_get_ethtool_stats(struct net_device *netdev,
|
|||
} else {
|
||||
i += priv->tx_cfg.num_queues * NUM_GVE_TX_CNTS;
|
||||
}
|
||||
/* AQ Stats */
|
||||
data[i++] = priv->adminq_prod_cnt;
|
||||
data[i++] = priv->adminq_cmd_fail;
|
||||
data[i++] = priv->adminq_timeouts;
|
||||
data[i++] = priv->adminq_describe_device_cnt;
|
||||
data[i++] = priv->adminq_cfg_device_resources_cnt;
|
||||
data[i++] = priv->adminq_register_page_list_cnt;
|
||||
data[i++] = priv->adminq_unregister_page_list_cnt;
|
||||
data[i++] = priv->adminq_create_tx_queue_cnt;
|
||||
data[i++] = priv->adminq_create_rx_queue_cnt;
|
||||
data[i++] = priv->adminq_destroy_tx_queue_cnt;
|
||||
data[i++] = priv->adminq_destroy_rx_queue_cnt;
|
||||
data[i++] = priv->adminq_dcfg_device_resources_cnt;
|
||||
data[i++] = priv->adminq_set_driver_parameter_cnt;
|
||||
}
|
||||
|
||||
static void gve_get_channels(struct net_device *netdev,
|
||||
|
|
@ -245,7 +334,8 @@ static int gve_get_tunable(struct net_device *netdev,
|
|||
}
|
||||
|
||||
static int gve_set_tunable(struct net_device *netdev,
|
||||
const struct ethtool_tunable *etuna, const void *value)
|
||||
const struct ethtool_tunable *etuna,
|
||||
const void *value)
|
||||
{
|
||||
struct gve_priv *priv = netdev_priv(netdev);
|
||||
u32 len;
|
||||
|
|
|
|||
|
|
@ -514,14 +514,18 @@ static void gve_free_rings(struct gve_priv *priv)
|
|||
}
|
||||
}
|
||||
|
||||
int gve_alloc_page(struct device *dev, struct page **page, dma_addr_t *dma,
|
||||
int gve_alloc_page(struct gve_priv *priv, struct device *dev,
|
||||
struct page **page, dma_addr_t *dma,
|
||||
enum dma_data_direction dir)
|
||||
{
|
||||
*page = alloc_page(GFP_KERNEL);
|
||||
if (!*page)
|
||||
if (!*page) {
|
||||
priv->page_alloc_fail++;
|
||||
return -ENOMEM;
|
||||
}
|
||||
*dma = dma_map_page(dev, *page, 0, PAGE_SIZE, dir);
|
||||
if (dma_mapping_error(dev, *dma)) {
|
||||
priv->dma_mapping_error++;
|
||||
put_page(*page);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
|
@ -556,7 +560,7 @@ static int gve_alloc_queue_page_list(struct gve_priv *priv, u32 id,
|
|||
return -ENOMEM;
|
||||
|
||||
for (i = 0; i < pages; i++) {
|
||||
err = gve_alloc_page(&priv->pdev->dev, &qpl->pages[i],
|
||||
err = gve_alloc_page(priv, &priv->pdev->dev, &qpl->pages[i],
|
||||
&qpl->page_buses[i],
|
||||
gve_qpl_dma_dir(priv, id));
|
||||
/* caller handles clean up */
|
||||
|
|
@ -697,6 +701,7 @@ static int gve_open(struct net_device *dev)
|
|||
|
||||
gve_turnup(priv);
|
||||
netif_carrier_on(dev);
|
||||
priv->interface_up_cnt++;
|
||||
return 0;
|
||||
|
||||
free_rings:
|
||||
|
|
@ -738,6 +743,7 @@ static int gve_close(struct net_device *dev)
|
|||
|
||||
gve_free_rings(priv);
|
||||
gve_free_qpls(priv);
|
||||
priv->interface_down_cnt++;
|
||||
return 0;
|
||||
|
||||
err:
|
||||
|
|
@ -1047,6 +1053,9 @@ int gve_reset(struct gve_priv *priv, bool attempt_teardown)
|
|||
/* Set it all back up */
|
||||
err = gve_reset_recovery(priv, was_up);
|
||||
gve_clear_reset_in_progress(priv);
|
||||
priv->reset_cnt++;
|
||||
priv->interface_up_cnt = 0;
|
||||
priv->interface_down_cnt = 0;
|
||||
return err;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -225,7 +225,8 @@ static enum pkt_hash_types gve_rss_type(__be16 pkt_flags)
|
|||
return PKT_HASH_TYPE_L2;
|
||||
}
|
||||
|
||||
static struct sk_buff *gve_rx_copy(struct net_device *dev,
|
||||
static struct sk_buff *gve_rx_copy(struct gve_rx_ring *rx,
|
||||
struct net_device *dev,
|
||||
struct napi_struct *napi,
|
||||
struct gve_rx_slot_page_info *page_info,
|
||||
u16 len)
|
||||
|
|
@ -242,6 +243,11 @@ static struct sk_buff *gve_rx_copy(struct net_device *dev,
|
|||
skb_copy_to_linear_data(skb, va, len);
|
||||
|
||||
skb->protocol = eth_type_trans(skb, dev);
|
||||
|
||||
u64_stats_update_begin(&rx->statss);
|
||||
rx->rx_copied_pkt++;
|
||||
u64_stats_update_end(&rx->statss);
|
||||
|
||||
return skb;
|
||||
}
|
||||
|
||||
|
|
@ -284,8 +290,12 @@ static bool gve_rx(struct gve_rx_ring *rx, struct gve_rx_desc *rx_desc,
|
|||
u16 len;
|
||||
|
||||
/* drop this packet */
|
||||
if (unlikely(rx_desc->flags_seq & GVE_RXF_ERR))
|
||||
if (unlikely(rx_desc->flags_seq & GVE_RXF_ERR)) {
|
||||
u64_stats_update_begin(&rx->statss);
|
||||
rx->rx_desc_err_dropped_pkt++;
|
||||
u64_stats_update_end(&rx->statss);
|
||||
return true;
|
||||
}
|
||||
|
||||
len = be16_to_cpu(rx_desc->len) - GVE_RX_PAD;
|
||||
page_info = &rx->data.page_info[idx];
|
||||
|
|
@ -300,11 +310,14 @@ static bool gve_rx(struct gve_rx_ring *rx, struct gve_rx_desc *rx_desc,
|
|||
if (PAGE_SIZE == 4096) {
|
||||
if (len <= priv->rx_copybreak) {
|
||||
/* Just copy small packets */
|
||||
skb = gve_rx_copy(dev, napi, page_info, len);
|
||||
skb = gve_rx_copy(rx, dev, napi, page_info, len);
|
||||
u64_stats_update_begin(&rx->statss);
|
||||
rx->rx_copybreak_pkt++;
|
||||
u64_stats_update_end(&rx->statss);
|
||||
goto have_skb;
|
||||
}
|
||||
if (unlikely(!gve_can_recycle_pages(dev))) {
|
||||
skb = gve_rx_copy(dev, napi, page_info, len);
|
||||
skb = gve_rx_copy(rx, dev, napi, page_info, len);
|
||||
goto have_skb;
|
||||
}
|
||||
pagecount = page_count(page_info->page);
|
||||
|
|
@ -314,8 +327,12 @@ static bool gve_rx(struct gve_rx_ring *rx, struct gve_rx_desc *rx_desc,
|
|||
* stack.
|
||||
*/
|
||||
skb = gve_rx_add_frags(dev, napi, page_info, len);
|
||||
if (!skb)
|
||||
if (!skb) {
|
||||
u64_stats_update_begin(&rx->statss);
|
||||
rx->rx_skb_alloc_fail++;
|
||||
u64_stats_update_end(&rx->statss);
|
||||
return true;
|
||||
}
|
||||
/* Make sure the kernel stack can't release the page */
|
||||
get_page(page_info->page);
|
||||
/* "flip" to other packet buffer on this page */
|
||||
|
|
@ -324,21 +341,25 @@ static bool gve_rx(struct gve_rx_ring *rx, struct gve_rx_desc *rx_desc,
|
|||
/* We have previously passed the other half of this
|
||||
* page up the stack, but it has not yet been freed.
|
||||
*/
|
||||
skb = gve_rx_copy(dev, napi, page_info, len);
|
||||
skb = gve_rx_copy(rx, dev, napi, page_info, len);
|
||||
} else {
|
||||
WARN(pagecount < 1, "Pagecount should never be < 1");
|
||||
return false;
|
||||
}
|
||||
} else {
|
||||
skb = gve_rx_copy(dev, napi, page_info, len);
|
||||
skb = gve_rx_copy(rx, dev, napi, page_info, len);
|
||||
}
|
||||
|
||||
have_skb:
|
||||
/* We didn't manage to allocate an skb but we haven't had any
|
||||
* reset worthy failures.
|
||||
*/
|
||||
if (!skb)
|
||||
if (!skb) {
|
||||
u64_stats_update_begin(&rx->statss);
|
||||
rx->rx_skb_alloc_fail++;
|
||||
u64_stats_update_end(&rx->statss);
|
||||
return true;
|
||||
}
|
||||
|
||||
if (likely(feat & NETIF_F_RXCSUM)) {
|
||||
/* NIC passes up the partial sum */
|
||||
|
|
|
|||
Loading…
Reference in New Issue