diff options
Diffstat (limited to 'drivers/net/ethernet/google/gve/gve_adminq.c')
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve_adminq.c | 101 |
1 files changed, 88 insertions, 13 deletions
diff --git a/drivers/net/ethernet/google/gve/gve_adminq.c b/drivers/net/ethernet/google/gve/gve_adminq.c index 3e8fc33cc11f..4f33d094a2ef 100644 --- a/drivers/net/ethernet/google/gve/gve_adminq.c +++ b/drivers/net/ethernet/google/gve/gve_adminq.c @@ -46,6 +46,7 @@ void gve_parse_device_option(struct gve_priv *priv, struct gve_device_option_buffer_sizes **dev_op_buffer_sizes, struct gve_device_option_flow_steering **dev_op_flow_steering, struct gve_device_option_rss_config **dev_op_rss_config, + struct gve_device_option_nic_timestamp **dev_op_nic_timestamp, struct gve_device_option_modify_ring **dev_op_modify_ring) { u32 req_feat_mask = be32_to_cpu(option->required_features_mask); @@ -225,6 +226,23 @@ void gve_parse_device_option(struct gve_priv *priv, "RSS config"); *dev_op_rss_config = (void *)(option + 1); break; + case GVE_DEV_OPT_ID_NIC_TIMESTAMP: + if (option_length < sizeof(**dev_op_nic_timestamp) || + req_feat_mask != GVE_DEV_OPT_REQ_FEAT_MASK_NIC_TIMESTAMP) { + dev_warn(&priv->pdev->dev, GVE_DEVICE_OPTION_ERROR_FMT, + "Nic Timestamp", + (int)sizeof(**dev_op_nic_timestamp), + GVE_DEV_OPT_REQ_FEAT_MASK_NIC_TIMESTAMP, + option_length, req_feat_mask); + break; + } + + if (option_length > sizeof(**dev_op_nic_timestamp)) + dev_warn(&priv->pdev->dev, + GVE_DEVICE_OPTION_TOO_BIG_FMT, + "Nic Timestamp"); + *dev_op_nic_timestamp = (void *)(option + 1); + break; default: /* If we don't recognize the option just continue * without doing anything. @@ -246,6 +264,7 @@ gve_process_device_options(struct gve_priv *priv, struct gve_device_option_buffer_sizes **dev_op_buffer_sizes, struct gve_device_option_flow_steering **dev_op_flow_steering, struct gve_device_option_rss_config **dev_op_rss_config, + struct gve_device_option_nic_timestamp **dev_op_nic_timestamp, struct gve_device_option_modify_ring **dev_op_modify_ring) { const int num_options = be16_to_cpu(descriptor->num_device_options); @@ -269,6 +288,7 @@ gve_process_device_options(struct gve_priv *priv, dev_op_dqo_rda, dev_op_jumbo_frames, dev_op_dqo_qpl, dev_op_buffer_sizes, dev_op_flow_steering, dev_op_rss_config, + dev_op_nic_timestamp, dev_op_modify_ring); dev_opt = next_opt; } @@ -306,6 +326,7 @@ int gve_adminq_alloc(struct device *dev, struct gve_priv *priv) priv->adminq_set_driver_parameter_cnt = 0; priv->adminq_report_stats_cnt = 0; priv->adminq_report_link_speed_cnt = 0; + priv->adminq_report_nic_timestamp_cnt = 0; priv->adminq_get_ptype_map_cnt = 0; priv->adminq_query_flow_rules_cnt = 0; priv->adminq_cfg_flow_rule_cnt = 0; @@ -442,6 +463,8 @@ static int gve_adminq_kick_and_wait(struct gve_priv *priv) int tail, head; int i; + lockdep_assert_held(&priv->adminq_lock); + tail = ioread32be(&priv->reg_bar0->adminq_event_counter); head = priv->adminq_prod_cnt; @@ -467,9 +490,6 @@ static int gve_adminq_kick_and_wait(struct gve_priv *priv) return 0; } -/* This function is not threadsafe - the caller is responsible for any - * necessary locks. - */ static int gve_adminq_issue_cmd(struct gve_priv *priv, union gve_adminq_command *cmd_orig) { @@ -477,6 +497,8 @@ static int gve_adminq_issue_cmd(struct gve_priv *priv, u32 opcode; u32 tail; + lockdep_assert_held(&priv->adminq_lock); + tail = ioread32be(&priv->reg_bar0->adminq_event_counter); // Check if next command will overflow the buffer. @@ -544,6 +566,9 @@ static int gve_adminq_issue_cmd(struct gve_priv *priv, case GVE_ADMINQ_REPORT_LINK_SPEED: priv->adminq_report_link_speed_cnt++; break; + case GVE_ADMINQ_REPORT_NIC_TIMESTAMP: + priv->adminq_report_nic_timestamp_cnt++; + break; case GVE_ADMINQ_GET_PTYPE_MAP: priv->adminq_get_ptype_map_cnt++; break; @@ -564,6 +589,7 @@ static int gve_adminq_issue_cmd(struct gve_priv *priv, break; default: dev_err(&priv->pdev->dev, "unknown AQ command opcode %d\n", opcode); + return -EINVAL; } return 0; @@ -625,7 +651,7 @@ static int gve_adminq_execute_extended_cmd(struct gve_priv *priv, u32 opcode, /* The device specifies that the management vector can either be the first irq * or the last irq. ntfy_blk_msix_base_idx indicates the first irq assigned to - * the ntfy blks. It if is 0 then the management vector is last, if it is 1 then + * the ntfy blks. If it is 0 then the management vector is last, if it is 1 then * the management vector is first. * * gve arranges the msix vectors so that the management vector is last. @@ -709,13 +735,19 @@ int gve_adminq_create_tx_queues(struct gve_priv *priv, u32 start_id, u32 num_que int err; int i; + mutex_lock(&priv->adminq_lock); + for (i = start_id; i < start_id + num_queues; i++) { err = gve_adminq_create_tx_queue(priv, i); if (err) - return err; + goto out; } - return gve_adminq_kick_and_wait(priv); + err = gve_adminq_kick_and_wait(priv); + +out: + mutex_unlock(&priv->adminq_lock); + return err; } static void gve_adminq_get_create_rx_queue_cmd(struct gve_priv *priv, @@ -788,13 +820,19 @@ int gve_adminq_create_rx_queues(struct gve_priv *priv, u32 num_queues) int err; int i; + mutex_lock(&priv->adminq_lock); + for (i = 0; i < num_queues; i++) { err = gve_adminq_create_rx_queue(priv, i); if (err) - return err; + goto out; } - return gve_adminq_kick_and_wait(priv); + err = gve_adminq_kick_and_wait(priv); + +out: + mutex_unlock(&priv->adminq_lock); + return err; } static int gve_adminq_destroy_tx_queue(struct gve_priv *priv, u32 queue_index) @@ -820,13 +858,19 @@ int gve_adminq_destroy_tx_queues(struct gve_priv *priv, u32 start_id, u32 num_qu int err; int i; + mutex_lock(&priv->adminq_lock); + for (i = start_id; i < start_id + num_queues; i++) { err = gve_adminq_destroy_tx_queue(priv, i); if (err) - return err; + goto out; } - return gve_adminq_kick_and_wait(priv); + err = gve_adminq_kick_and_wait(priv); + +out: + mutex_unlock(&priv->adminq_lock); + return err; } static void gve_adminq_make_destroy_rx_queue_cmd(union gve_adminq_command *cmd, @@ -861,13 +905,19 @@ int gve_adminq_destroy_rx_queues(struct gve_priv *priv, u32 num_queues) int err; int i; + mutex_lock(&priv->adminq_lock); + for (i = 0; i < num_queues; i++) { err = gve_adminq_destroy_rx_queue(priv, i); if (err) - return err; + goto out; } - return gve_adminq_kick_and_wait(priv); + err = gve_adminq_kick_and_wait(priv); + +out: + mutex_unlock(&priv->adminq_lock); + return err; } static void gve_set_default_desc_cnt(struct gve_priv *priv, @@ -904,6 +954,8 @@ static void gve_enable_supported_features(struct gve_priv *priv, *dev_op_flow_steering, const struct gve_device_option_rss_config *dev_op_rss_config, + const struct gve_device_option_nic_timestamp + *dev_op_nic_timestamp, const struct gve_device_option_modify_ring *dev_op_modify_ring) { @@ -980,10 +1032,15 @@ static void gve_enable_supported_features(struct gve_priv *priv, "RSS device option enabled with key size of %u, lut size of %u.\n", priv->rss_key_size, priv->rss_lut_size); } + + if (dev_op_nic_timestamp && + (supported_features_mask & GVE_SUP_NIC_TIMESTAMP_MASK)) + priv->nic_timestamp_supported = true; } int gve_adminq_describe_device(struct gve_priv *priv) { + struct gve_device_option_nic_timestamp *dev_op_nic_timestamp = NULL; struct gve_device_option_flow_steering *dev_op_flow_steering = NULL; struct gve_device_option_buffer_sizes *dev_op_buffer_sizes = NULL; struct gve_device_option_jumbo_frames *dev_op_jumbo_frames = NULL; @@ -1024,6 +1081,7 @@ int gve_adminq_describe_device(struct gve_priv *priv) &dev_op_buffer_sizes, &dev_op_flow_steering, &dev_op_rss_config, + &dev_op_nic_timestamp, &dev_op_modify_ring); if (err) goto free_device_descriptor; @@ -1088,7 +1146,8 @@ int gve_adminq_describe_device(struct gve_priv *priv) gve_enable_supported_features(priv, supported_features_mask, dev_op_jumbo_frames, dev_op_dqo_qpl, dev_op_buffer_sizes, dev_op_flow_steering, - dev_op_rss_config, dev_op_modify_ring); + dev_op_rss_config, dev_op_nic_timestamp, + dev_op_modify_ring); free_device_descriptor: dma_pool_free(priv->adminq_pool, descriptor, descriptor_bus); @@ -1200,6 +1259,22 @@ int gve_adminq_report_link_speed(struct gve_priv *priv) return err; } +int gve_adminq_report_nic_ts(struct gve_priv *priv, + dma_addr_t nic_ts_report_addr) +{ + union gve_adminq_command cmd; + + memset(&cmd, 0, sizeof(cmd)); + cmd.opcode = cpu_to_be32(GVE_ADMINQ_REPORT_NIC_TIMESTAMP); + cmd.report_nic_ts = (struct gve_adminq_report_nic_ts) { + .nic_ts_report_len = + cpu_to_be64(sizeof(struct gve_nic_ts_report)), + .nic_ts_report_addr = cpu_to_be64(nic_ts_report_addr), + }; + + return gve_adminq_execute_cmd(priv, &cmd); +} + int gve_adminq_get_ptype_map_dqo(struct gve_priv *priv, struct gve_ptype_lut *ptype_lut) { |