diff options
Diffstat (limited to 'drivers/net/ethernet/google/gve/gve_adminq.c')
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve_adminq.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/drivers/net/ethernet/google/gve/gve_adminq.c b/drivers/net/ethernet/google/gve/gve_adminq.c index 9efa60ce34e0..7d8d354f67e2 100644 --- a/drivers/net/ethernet/google/gve/gve_adminq.c +++ b/drivers/net/ethernet/google/gve/gve_adminq.c @@ -176,6 +176,7 @@ 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_get_ptype_map_cnt = 0; /* Setup Admin queue with the device */ iowrite32be(priv->adminq_bus_addr / PAGE_SIZE, @@ -381,6 +382,9 @@ 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_GET_PTYPE_MAP: + priv->adminq_get_ptype_map_cnt++; + break; default: dev_err(&priv->pdev->dev, "unknown AQ command opcode %d\n", opcode); } @@ -393,7 +397,8 @@ static int gve_adminq_issue_cmd(struct gve_priv *priv, * The caller is also responsible for making sure there are no commands * waiting to be executed. */ -static int gve_adminq_execute_cmd(struct gve_priv *priv, union gve_adminq_command *cmd_orig) +static int gve_adminq_execute_cmd(struct gve_priv *priv, + union gve_adminq_command *cmd_orig) { u32 tail, head; int err; @@ -827,3 +832,41 @@ int gve_adminq_report_link_speed(struct gve_priv *priv) link_speed_region_bus); return err; } + +int gve_adminq_get_ptype_map_dqo(struct gve_priv *priv, + struct gve_ptype_lut *ptype_lut) +{ + struct gve_ptype_map *ptype_map; + union gve_adminq_command cmd; + dma_addr_t ptype_map_bus; + int err = 0; + int i; + + memset(&cmd, 0, sizeof(cmd)); + ptype_map = dma_alloc_coherent(&priv->pdev->dev, sizeof(*ptype_map), + &ptype_map_bus, GFP_KERNEL); + if (!ptype_map) + return -ENOMEM; + + cmd.opcode = cpu_to_be32(GVE_ADMINQ_GET_PTYPE_MAP); + cmd.get_ptype_map = (struct gve_adminq_get_ptype_map) { + .ptype_map_len = cpu_to_be64(sizeof(*ptype_map)), + .ptype_map_addr = cpu_to_be64(ptype_map_bus), + }; + + err = gve_adminq_execute_cmd(priv, &cmd); + if (err) + goto err; + + /* Populate ptype_lut. */ + for (i = 0; i < GVE_NUM_PTYPES; i++) { + ptype_lut->ptypes[i].l3_type = + ptype_map->ptypes[i].l3_type; + ptype_lut->ptypes[i].l4_type = + ptype_map->ptypes[i].l4_type; + } +err: + dma_free_coherent(&priv->pdev->dev, sizeof(*ptype_map), ptype_map, + ptype_map_bus); + return err; +} |